[PATCH v5 00/46] usb: gadget: rework ep matching and claiming mechanism

[PATCH v5 00/46] usb: gadget: rework ep matching and claiming mechanism

[Robert Baldyga]

Hello,

This patch series reworks endpoint matching and claiming mechanism in
epautoconf. From v2 there are couple of new patches adding 'ep_match'
to usb_gadget_ops and removing chip-specific quirk handling from generic
code of autoconfig.

I'm not sure if this patch set isn't too long, as it has 46 patches,
but I decided to send it as single series to avoid problems with patch
applying order.

The aim of whole patchset is to rework epautoconf code to get rid of
things like name-based endpoint matching and UDC name-based quirks in
generic code. These needed to do some modifications in framework like
adding 'endpoint capabilities flags' feature or adding 'match_ep'.

Following paragraphs contain brief description of what modifications are
done by particular parts of this patch set:

Patch (1) introduces new safer endpoint claiming method, basing on new
'claimed' flag. It was discussed here [1]. I proposed this solution over
year ago and it was accepted, but I apparently forgot to send the final
version of my patch.

Patches (2-3) add the 'capabilities flags' structure and helper macros.
This solution is inspired by the 'feature flags' originally proposed
by Felipe Balbi in 2013 [2], but unfortunately implementation of this
feature has never been completed.

Patches (4-36) add' capabilites flags' support to all UDC drivers present
in the kernel tree. It's needed to be done before replacing old endpoint
matching mechanism, otherwise UDC drivers which doesn't set 'capabilities
flags' won't work with new matching function.

Patch (37) finally replaces old endpoint matching method with the new
one basing on capabilities flags.

These changes aims to get rid of code, which guesses endpoint capabilities
basing on it's name, and introduce new better replacement. In result
we have better way to describe types and directions supported by each
endpoint.

For example the old name-based method didn't allow to have endpoint
supporing two types of transfers - there were only ability to support
one or all of endpoint types. The 'capabilities flags' feature supply
precise, flexible and extensible mechanism of description of endpoint
hardware limitations, which is desired for proper endpoint matching.

Patch (38) removes chip-specific quirk from ep_matches() function.

Patches (39-40) remove code modifying endpoint and descriptor structures
from ep_matches() function and cleans it up to make it simpler and more
readable.

Patch (41) add 'match_ep' callback to usb_gadget_ops and make use of
it in epautoconf. This callback allows UDC drivers to supply non-standard
endpoint matching algorithms.

Patches (42-43) move ep_matches() and find_ep() functions outside
epautoconf and rename them to usb_gadget_ep_match_desc() and
gadget_find_ep_by_name(). It's because they may be useful in 'match_ep'
callbacks in UDC drivers to avoid writing repetitive code.

Patches (44-46) move chip-specific enpoint matching algorithms from
generic code of usb_ep_autoconfig_ss() function to UDC controller drivers
using 'match_ep' callback.

In the result we have epautoconf source free of chip-specific code, plus
two new mechanisms allowing to handle non-standard hardware limitations.

[1] https://lkml.org/lkml/2014/6/16/94
[2] http://www.spinics.net/lists/linux-usb/msg99662.html

Best regards,
Robert Baldyga

Changelog:

v5:
- made code more grepable according to Felipe's suggestion

v4: https://lkml.org/lkml/2015/7/27/181
- addressed comments from Krzysztof Opasiak and Felipe Balbi

v3: https://lkml.org/lkml/2015/7/15/68
- addressed comments from Sergei Shtylyov

v2: https://lkml.org/lkml/2015/7/14/172
- remove PXA quirk from ep_matches() function without behaviour change
  using ep capabilities flags
- separate ep and desc configuration code from ep_match() function
- add 'ep_match' to usb_gadget_ops and move chip-specific endpoint
  matching algorithms from generic code to UDC controller drivers

v1: https://lkml.org/lkml/2015/7/8/436

Robert Baldyga (46):
  usb: gadget: encapsulate endpoint claiming mechanism
  usb: gadget: add endpoint capabilities flags
  usb: gadget: add endpoint capabilities helper macros
  staging: emxx_udc: add ep capabilities support
  usb: chipidea: udc: add ep capabilities support
  usb: dwc2: gadget: add ep capabilities support
  usb: dwc3: gadget: add ep capabilities support
  usb: gadget: amd5536udc: add ep capabilities support
  usb: gadget: at91_udc: add ep capabilities support
  usb: gadget: bcm63xx_udc: add ep capabilities support
  usb: gadget: bdc: add ep capabilities support
  usb: gadget: dummy-hcd: add ep capabilities support
  usb: gadget: fotg210-udc: add ep capabilities support
  usb: gadget: fsl_qe_udc: add ep capabilities support
  usb: gadget: fsl_udc_core: add ep capabilities support
  usb: gadget: fusb300_udc: add ep capabilities support
  usb: gadget: goku_udc: add ep capabilities support
  usb: gadget: gr_udc: add ep capabilities support
  usb: gadget: lpc32xx_udc: add ep capabilities support
  usb: gadget: m66592-udc: add ep capabilities support
  usb: gadget: mv_u3d_core: add ep capabilities support
  usb: gadget: mv_udc_core: add ep capabilities support
  usb: gadget: net2272: add ep capabilities support
  usb: gadget: net2280: add ep capabilities support
  usb: gadget: omap_udc: add ep capabilities support
  usb: gadget: pch_udc: add ep capabilities support
  usb: gadget: pxa25x_udc: add ep capabilities support
  usb: gadget: pxa27x_udc: add ep capabilities support
  usb: gadget: r8a66597-udc: add ep capabilities support
  usb: gadget: s3c-hsudc: add ep capabilities support
  usb: gadget: s3c2410_udc: add ep capabilities support
  usb: gadget: udc-xilinx: add ep capabilities support
  usb: isp1760: udc: add ep capabilities support
  usb: musb: gadget: add ep capabilities support
  usb: renesas: gadget: add ep capabilities support
  usb: gadget: atmel_usba_udc: add ep capabilities support
  usb: gadget: epautoconf: add endpoint capabilities flags verification
  usb: gadget: epautoconf: remove pxa quirk from ep_matches()
  usb: gadget: epautoconf: remove ep and desc configuration from
    ep_matches()
  usb: gadget: epautoconf: rework ep_matches() function
  usb: gadget: add 'ep_match' callback to usb_gadget_ops
  usb: gadget: move ep_matches() from epautoconf to udc-core
  usb: gadget: move find_ep() from epautoconf to gadget.h
  usb: gadget: net2280: add net2280_match_ep() function
  usb: gadget: goku_udc: add goku_match_ep() function
  usb: musb: gadget: add musb_match_ep() function

 drivers/staging/emxx_udc/emxx_udc.c     |  73 +++++----
 drivers/usb/chipidea/udc.c              |  14 ++
 drivers/usb/dwc2/gadget.c               |  13 ++
 drivers/usb/dwc3/gadget.c               |  13 ++
 drivers/usb/gadget/epautoconf.c         | 280 +++++---------------------------
 drivers/usb/gadget/udc/amd5536udc.c     |  88 ++++++++--
 drivers/usb/gadget/udc/at91_udc.c       |  38 ++++-
 drivers/usb/gadget/udc/atmel_usba_udc.c |  11 ++
 drivers/usb/gadget/udc/bcm63xx_udc.c    |  29 +++-
 drivers/usb/gadget/udc/bdc/bdc_ep.c     |   9 +
 drivers/usb/gadget/udc/dummy_hcd.c      |  95 +++++++++--
 drivers/usb/gadget/udc/fotg210-udc.c    |  11 ++
 drivers/usb/gadget/udc/fsl_qe_udc.c     |  11 ++
 drivers/usb/gadget/udc/fsl_udc_core.c   |  13 ++
 drivers/usb/gadget/udc/fusb300_udc.c    |  11 ++
 drivers/usb/gadget/udc/goku_udc.c       |  33 ++++
 drivers/usb/gadget/udc/gr_udc.c         |  11 ++
 drivers/usb/gadget/udc/lpc32xx_udc.c    |  32 ++++
 drivers/usb/gadget/udc/m66592-udc.c     |  11 ++
 drivers/usb/gadget/udc/mv_u3d_core.c    |   9 +
 drivers/usb/gadget/udc/mv_udc_core.c    |   9 +
 drivers/usb/gadget/udc/net2272.c        |  11 ++
 drivers/usb/gadget/udc/net2280.c        |  98 +++++++++--
 drivers/usb/gadget/udc/omap_udc.c       |  22 +++
 drivers/usb/gadget/udc/pch_udc.c        |  14 +-
 drivers/usb/gadget/udc/pxa25x_udc.c     |  29 ++++
 drivers/usb/gadget/udc/pxa27x_udc.h     |  40 +++--
 drivers/usb/gadget/udc/r8a66597-udc.c   |  10 ++
 drivers/usb/gadget/udc/s3c-hsudc.c      |  15 ++
 drivers/usb/gadget/udc/s3c2410_udc.c    |  10 ++
 drivers/usb/gadget/udc/udc-core.c       |  69 ++++++++
 drivers/usb/gadget/udc/udc-xilinx.c     |   9 +
 drivers/usb/isp1760/isp1760-udc.c       |  11 ++
 drivers/usb/musb/musb_gadget.c          |  46 ++++++
 drivers/usb/renesas_usbhs/mod_gadget.c  |   6 +
 include/linux/usb/gadget.h              |  71 ++++++++
 36 files changed, 940 insertions(+), 335 deletions(-)

-- 
1.9.1

[PATCH v5 00/46] usb: gadget: rework ep matching and claiming mechanism

[Robert Baldyga]

Hello,

This patch series reworks endpoint matching and claiming mechanism in
epautoconf. From v2 there are couple of new patches adding 'ep_match'
to usb_gadget_ops and removing chip-specific quirk handling from generic
code of autoconfig.

I'm not sure if this patch set isn't too long, as it has 46 patches,
but I decided to send it as single series to avoid problems with patch
applying order.

The aim of whole patchset is to rework epautoconf code to get rid of
things like name-based endpoint matching and UDC name-based quirks in
generic code. These needed to do some modifications in framework like
adding 'endpoint capabilities flags' feature or adding 'match_ep'.

Following paragraphs contain brief description of what modifications are
done by particular parts of this patch set:

Patch (1) introduces new safer endpoint claiming method, basing on new
'claimed' flag. It was discussed here [1]. I proposed this solution over
year ago and it was accepted, but I apparently forgot to send the final
version of my patch.

Patches (2-3) add the 'capabilities flags' structure and helper macros.
This solution is inspired by the 'feature flags' originally proposed
by Felipe Balbi in 2013 [2], but unfortunately implementation of this
feature has never been completed.

Patches (4-36) add' capabilites flags' support to all UDC drivers present
in the kernel tree. It's needed to be done before replacing old endpoint
matching mechanism, otherwise UDC drivers which doesn't set 'capabilities
flags' won't work with new matching function.

Patch (37) finally replaces old endpoint matching method with the new
one basing on capabilities flags.

These changes aims to get rid of code, which guesses endpoint capabilities
basing on it's name, and introduce new better replacement. In result
we have better way to describe types and directions supported by each
endpoint.

For example the old name-based method didn't allow to have endpoint
supporing two types of transfers - there were only ability to support
one or all of endpoint types. The 'capabilities flags' feature supply
precise, flexible and extensible mechanism of description of endpoint
hardware limitations, which is desired for proper endpoint matching.

Patch (38) removes chip-specific quirk from ep_matches() function.

Patches (39-40) remove code modifying endpoint and descriptor structures
from ep_matches() function and cleans it up to make it simpler and more
readable.

Patch (41) add 'match_ep' callback to usb_gadget_ops and make use of
it in epautoconf. This callback allows UDC drivers to supply non-standard
endpoint matching algorithms.

Patches (42-43) move ep_matches() and find_ep() functions outside
epautoconf and rename them to usb_gadget_ep_match_desc() and
gadget_find_ep_by_name(). It's because they may be useful in 'match_ep'
callbacks in UDC drivers to avoid writing repetitive code.

Patches (44-46) move chip-specific enpoint matching algorithms from
generic code of usb_ep_autoconfig_ss() function to UDC controller drivers
using 'match_ep' callback.

In the result we have epautoconf source free of chip-specific code, plus
two new mechanisms allowing to handle non-standard hardware limitations.

[1] https://lkml.org/lkml/2014/6/16/94
[2] http://www.spinics.net/lists/linux-usb/msg99662.html

Best regards,
Robert Baldyga

Changelog:

v5:
- made code more grepable according to Felipe's suggestion

v4: https://lkml.org/lkml/2015/7/27/181
- addressed comments from Krzysztof Opasiak and Felipe Balbi

v3: https://lkml.org/lkml/2015/7/15/68
- addressed comments from Sergei Shtylyov

v2: https://lkml.org/lkml/2015/7/14/172
- remove PXA quirk from ep_matches() function without behaviour change
  using ep capabilities flags
- separate ep and desc configuration code from ep_match() function
- add 'ep_match' to usb_gadget_ops and move chip-specific endpoint
  matching algorithms from generic code to UDC controller drivers

v1: https://lkml.org/lkml/2015/7/8/436

Robert Baldyga (46):
  usb: gadget: encapsulate endpoint claiming mechanism
  usb: gadget: add endpoint capabilities flags
  usb: gadget: add endpoint capabilities helper macros
  staging: emxx_udc: add ep capabilities support
  usb: chipidea: udc: add ep capabilities support
  usb: dwc2: gadget: add ep capabilities support
  usb: dwc3: gadget: add ep capabilities support
  usb: gadget: amd5536udc: add ep capabilities support
  usb: gadget: at91_udc: add ep capabilities support
  usb: gadget: bcm63xx_udc: add ep capabilities support
  usb: gadget: bdc: add ep capabilities support
  usb: gadget: dummy-hcd: add ep capabilities support
  usb: gadget: fotg210-udc: add ep capabilities support
  usb: gadget: fsl_qe_udc: add ep capabilities support
  usb: gadget: fsl_udc_core: add ep capabilities support
  usb: gadget: fusb300_udc: add ep capabilities support
  usb: gadget: goku_udc: add ep capabilities support
  usb: gadget: gr_udc: add ep capabilities support
  usb: gadget: lpc32xx_udc: add ep capabilities support
  usb: gadget: m66592-udc: add ep capabilities support
  usb: gadget: mv_u3d_core: add ep capabilities support
  usb: gadget: mv_udc_core: add ep capabilities support
  usb: gadget: net2272: add ep capabilities support
  usb: gadget: net2280: add ep capabilities support
  usb: gadget: omap_udc: add ep capabilities support
  usb: gadget: pch_udc: add ep capabilities support
  usb: gadget: pxa25x_udc: add ep capabilities support
  usb: gadget: pxa27x_udc: add ep capabilities support
  usb: gadget: r8a66597-udc: add ep capabilities support
  usb: gadget: s3c-hsudc: add ep capabilities support
  usb: gadget: s3c2410_udc: add ep capabilities support
  usb: gadget: udc-xilinx: add ep capabilities support
  usb: isp1760: udc: add ep capabilities support
  usb: musb: gadget: add ep capabilities support
  usb: renesas: gadget: add ep capabilities support
  usb: gadget: atmel_usba_udc: add ep capabilities support
  usb: gadget: epautoconf: add endpoint capabilities flags verification
  usb: gadget: epautoconf: remove pxa quirk from ep_matches()
  usb: gadget: epautoconf: remove ep and desc configuration from
    ep_matches()
  usb: gadget: epautoconf: rework ep_matches() function
  usb: gadget: add 'ep_match' callback to usb_gadget_ops
  usb: gadget: move ep_matches() from epautoconf to udc-core
  usb: gadget: move find_ep() from epautoconf to gadget.h
  usb: gadget: net2280: add net2280_match_ep() function
  usb: gadget: goku_udc: add goku_match_ep() function
  usb: musb: gadget: add musb_match_ep() function

 drivers/staging/emxx_udc/emxx_udc.c     |  73 +++++----
 drivers/usb/chipidea/udc.c              |  14 ++
 drivers/usb/dwc2/gadget.c               |  13 ++
 drivers/usb/dwc3/gadget.c               |  13 ++
 drivers/usb/gadget/epautoconf.c         | 280 +++++---------------------------
 drivers/usb/gadget/udc/amd5536udc.c     |  88 ++++++++--
 drivers/usb/gadget/udc/at91_udc.c       |  38 ++++-
 drivers/usb/gadget/udc/atmel_usba_udc.c |  11 ++
 drivers/usb/gadget/udc/bcm63xx_udc.c    |  29 +++-
 drivers/usb/gadget/udc/bdc/bdc_ep.c     |   9 +
 drivers/usb/gadget/udc/dummy_hcd.c      |  95 +++++++++--
 drivers/usb/gadget/udc/fotg210-udc.c    |  11 ++
 drivers/usb/gadget/udc/fsl_qe_udc.c     |  11 ++
 drivers/usb/gadget/udc/fsl_udc_core.c   |  13 ++
 drivers/usb/gadget/udc/fusb300_udc.c    |  11 ++
 drivers/usb/gadget/udc/goku_udc.c       |  33 ++++
 drivers/usb/gadget/udc/gr_udc.c         |  11 ++
 drivers/usb/gadget/udc/lpc32xx_udc.c    |  32 ++++
 drivers/usb/gadget/udc/m66592-udc.c     |  11 ++
 drivers/usb/gadget/udc/mv_u3d_core.c    |   9 +
 drivers/usb/gadget/udc/mv_udc_core.c    |   9 +
 drivers/usb/gadget/udc/net2272.c        |  11 ++
 drivers/usb/gadget/udc/net2280.c        |  98 +++++++++--
 drivers/usb/gadget/udc/omap_udc.c       |  22 +++
 drivers/usb/gadget/udc/pch_udc.c        |  14 +-
 drivers/usb/gadget/udc/pxa25x_udc.c     |  29 ++++
 drivers/usb/gadget/udc/pxa27x_udc.h     |  40 +++--
 drivers/usb/gadget/udc/r8a66597-udc.c   |  10 ++
 drivers/usb/gadget/udc/s3c-hsudc.c      |  15 ++
 drivers/usb/gadget/udc/s3c2410_udc.c    |  10 ++
 drivers/usb/gadget/udc/udc-core.c       |  69 ++++++++
 drivers/usb/gadget/udc/udc-xilinx.c     |   9 +
 drivers/usb/isp1760/isp1760-udc.c       |  11 ++
 drivers/usb/musb/musb_gadget.c          |  46 ++++++
 drivers/usb/renesas_usbhs/mod_gadget.c  |   6 +
 include/linux/usb/gadget.h              |  71 ++++++++
 36 files changed, 940 insertions(+), 335 deletions(-)

-- 
1.9.1

[PATCH v5 01/46] usb: gadget: encapsulate endpoint claiming mechanism

[Robert Baldyga]

So far it was necessary for usb functions to set ep->driver_data in
endpoint obtained from autoconfig to non-null value, to indicate that
endpoint is claimed by function (in autoconfig it was checked if endpoint
has set this field to non-null value, and if it has, it was assumed that
it is claimed). It could cause bugs because if some function doesn't
set this field autoconfig could return the same endpoint more than one
time.

To help to avoid such bugs this patch adds claimed flag to struct usb_ep,
and  encapsulates endpoint claiming mechanism inside usb_ep_autoconfig_ss()
and usb_ep_autoconfig_reset(), so now usb functions don't need to perform
any additional actions to mark endpoint obtained from autoconfig as claimed.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/epautoconf.c | 11 ++++++-----
 include/linux/usb/gadget.h      |  1 +
 2 files changed, 7 insertions(+), 5 deletions(-)

diff --git a/drivers/usb/gadget/epautoconf.c b/drivers/usb/gadget/epautoconf.c
index 919cdfd..8e00ca7 100644
--- a/drivers/usb/gadget/epautoconf.c
+++ b/drivers/usb/gadget/epautoconf.c
@@ -53,7 +53,7 @@ ep_matches (
 	int		num_req_streams = 0;
 
 	/* endpoint already claimed? */
-	if (NULL != ep->driver_data)
+	if (ep->claimed)
 		return 0;
 
 	/* only support ep0 for portable CONTROL traffic */
@@ -240,7 +240,7 @@ find_ep (struct usb_gadget *gadget, const char *name)
  * updated with the assigned number of streams if it is
  * different from the original value. To prevent the endpoint
  * from being returned by a later autoconfig call, claim it by
- * assigning ep->driver_data to some non-null value.
+ * assigning ep->claimed to true.
  *
  * On failure, this returns a null endpoint descriptor.
  */
@@ -323,6 +323,7 @@ struct usb_ep *usb_ep_autoconfig_ss(
 found_ep:
 	ep->desc = NULL;
 	ep->comp_desc = NULL;
+	ep->claimed = true;
 	return ep;
 }
 EXPORT_SYMBOL_GPL(usb_ep_autoconfig_ss);
@@ -354,7 +355,7 @@ EXPORT_SYMBOL_GPL(usb_ep_autoconfig_ss);
  * descriptor bEndpointAddress.  For bulk endpoints, the wMaxPacket value
  * is initialized as if the endpoint were used at full speed.  To prevent
  * the endpoint from being returned by a later autoconfig call, claim it
- * by assigning ep->driver_data to some non-null value.
+ * by assigning ep->claimed to true.
  *
  * On failure, this returns a null endpoint descriptor.
  */
@@ -373,7 +374,7 @@ EXPORT_SYMBOL_GPL(usb_ep_autoconfig);
  *
  * Use this for devices where one configuration may need to assign
  * endpoint resources very differently from the next one.  It clears
- * state such as ep->driver_data and the record of assigned endpoints
+ * state such as ep->claimed and the record of assigned endpoints
  * used by usb_ep_autoconfig().
  */
 void usb_ep_autoconfig_reset (struct usb_gadget *gadget)
@@ -381,7 +382,7 @@ void usb_ep_autoconfig_reset (struct usb_gadget *gadget)
 	struct usb_ep	*ep;
 
 	list_for_each_entry (ep, &gadget->ep_list, ep_list) {
-		ep->driver_data = NULL;
+		ep->claimed = false;
 	}
 	gadget->in_epnum = 0;
 	gadget->out_epnum = 0;
diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h
index 353a720..68fb5e8 100644
--- a/include/linux/usb/gadget.h
+++ b/include/linux/usb/gadget.h
@@ -173,6 +173,7 @@ struct usb_ep {
 	const char		*name;
 	const struct usb_ep_ops	*ops;
 	struct list_head	ep_list;
+	bool			claimed;
 	unsigned		maxpacket:16;
 	unsigned		maxpacket_limit:16;
 	unsigned		max_streams:16;
-- 
1.9.1

[PATCH v5 01/46] usb: gadget: encapsulate endpoint claiming mechanism

[Robert Baldyga]

So far it was necessary for usb functions to set ep->driver_data in
endpoint obtained from autoconfig to non-null value, to indicate that
endpoint is claimed by function (in autoconfig it was checked if endpoint
has set this field to non-null value, and if it has, it was assumed that
it is claimed). It could cause bugs because if some function doesn't
set this field autoconfig could return the same endpoint more than one
time.

To help to avoid such bugs this patch adds claimed flag to struct usb_ep,
and  encapsulates endpoint claiming mechanism inside usb_ep_autoconfig_ss()
and usb_ep_autoconfig_reset(), so now usb functions don't need to perform
any additional actions to mark endpoint obtained from autoconfig as claimed.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/epautoconf.c | 11 ++++++-----
 include/linux/usb/gadget.h      |  1 +
 2 files changed, 7 insertions(+), 5 deletions(-)

diff --git a/drivers/usb/gadget/epautoconf.c b/drivers/usb/gadget/epautoconf.c
index 919cdfd..8e00ca7 100644
--- a/drivers/usb/gadget/epautoconf.c
+++ b/drivers/usb/gadget/epautoconf.c
@@ -53,7 +53,7 @@ ep_matches (
 	int		num_req_streams = 0;
 
 	/* endpoint already claimed? */
-	if (NULL != ep->driver_data)
+	if (ep->claimed)
 		return 0;
 
 	/* only support ep0 for portable CONTROL traffic */
@@ -240,7 +240,7 @@ find_ep (struct usb_gadget *gadget, const char *name)
  * updated with the assigned number of streams if it is
  * different from the original value. To prevent the endpoint
  * from being returned by a later autoconfig call, claim it by
- * assigning ep->driver_data to some non-null value.
+ * assigning ep->claimed to true.
  *
  * On failure, this returns a null endpoint descriptor.
  */
@@ -323,6 +323,7 @@ struct usb_ep *usb_ep_autoconfig_ss(
 found_ep:
 	ep->desc = NULL;
 	ep->comp_desc = NULL;
+	ep->claimed = true;
 	return ep;
 }
 EXPORT_SYMBOL_GPL(usb_ep_autoconfig_ss);
@@ -354,7 +355,7 @@ EXPORT_SYMBOL_GPL(usb_ep_autoconfig_ss);
  * descriptor bEndpointAddress.  For bulk endpoints, the wMaxPacket value
  * is initialized as if the endpoint were used at full speed.  To prevent
  * the endpoint from being returned by a later autoconfig call, claim it
- * by assigning ep->driver_data to some non-null value.
+ * by assigning ep->claimed to true.
  *
  * On failure, this returns a null endpoint descriptor.
  */
@@ -373,7 +374,7 @@ EXPORT_SYMBOL_GPL(usb_ep_autoconfig);
  *
  * Use this for devices where one configuration may need to assign
  * endpoint resources very differently from the next one.  It clears
- * state such as ep->driver_data and the record of assigned endpoints
+ * state such as ep->claimed and the record of assigned endpoints
  * used by usb_ep_autoconfig().
  */
 void usb_ep_autoconfig_reset (struct usb_gadget *gadget)
@@ -381,7 +382,7 @@ void usb_ep_autoconfig_reset (struct usb_gadget *gadget)
 	struct usb_ep	*ep;
 
 	list_for_each_entry (ep, &gadget->ep_list, ep_list) {
-		ep->driver_data = NULL;
+		ep->claimed = false;
 	}
 	gadget->in_epnum = 0;
 	gadget->out_epnum = 0;
diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h
index 353a720..68fb5e8 100644
--- a/include/linux/usb/gadget.h
+++ b/include/linux/usb/gadget.h
@@ -173,6 +173,7 @@ struct usb_ep {
 	const char		*name;
 	const struct usb_ep_ops	*ops;
 	struct list_head	ep_list;
+	bool			claimed;
 	unsigned		maxpacket:16;
 	unsigned		maxpacket_limit:16;
 	unsigned		max_streams:16;
-- 
1.9.1

[PATCH v5 02/46] usb: gadget: add endpoint capabilities flags

[Robert Baldyga]

Introduce struct usb_ep_caps which contains information about capabilities
of usb endpoints - supported transfer types and directions. This structure
should be filled by UDC driver for each of its endpoints, and will be
used in epautoconf in new ep matching mechanism which will replace ugly
guessing of endpoint capabilities basing on its name.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 include/linux/usb/gadget.h | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h
index 68fb5e8..a9a4959 100644
--- a/include/linux/usb/gadget.h
+++ b/include/linux/usb/gadget.h
@@ -141,10 +141,29 @@ struct usb_ep_ops {
 };
 
 /**
+ * struct usb_ep_caps - endpoint capabilities description
+ * @type_control:Endpoint supports control type (reserved for ep0).
+ * @type_iso:Endpoint supports isochronous transfers.
+ * @type_bulk:Endpoint supports bulk transfers.
+ * @type_int:Endpoint supports interrupt transfers.
+ * @dir_in:Endpoint supports IN direction.
+ * @dir_out:Endpoint supports OUT direction.
+ */
+struct usb_ep_caps {
+	unsigned type_control:1;
+	unsigned type_iso:1;
+	unsigned type_bulk:1;
+	unsigned type_int:1;
+	unsigned dir_in:1;
+	unsigned dir_out:1;
+};
+
+/**
  * struct usb_ep - device side representation of USB endpoint
  * @name:identifier for the endpoint, such as "ep-a" or "ep9in-bulk"
  * @ops: Function pointers used to access hardware-specific operations.
  * @ep_list:the gadget's ep_list holds all of its endpoints
+ * @caps:The structure describing types and directions supported by endoint.
  * @maxpacket:The maximum packet size used on this endpoint.  The initial
  *	value can sometimes be reduced (hardware allowing), according to
  *      the endpoint descriptor used to configure the endpoint.
@@ -167,12 +186,14 @@ struct usb_ep_ops {
  * gadget->ep_list.  the control endpoint (gadget->ep0) is not in that list,
  * and is accessed only in response to a driver setup() callback.
  */
+
 struct usb_ep {
 	void			*driver_data;
 
 	const char		*name;
 	const struct usb_ep_ops	*ops;
 	struct list_head	ep_list;
+	struct usb_ep_caps	caps;
 	bool			claimed;
 	unsigned		maxpacket:16;
 	unsigned		maxpacket_limit:16;
-- 
1.9.1

[PATCH v5 02/46] usb: gadget: add endpoint capabilities flags

[Robert Baldyga]

Introduce struct usb_ep_caps which contains information about capabilities
of usb endpoints - supported transfer types and directions. This structure
should be filled by UDC driver for each of its endpoints, and will be
used in epautoconf in new ep matching mechanism which will replace ugly
guessing of endpoint capabilities basing on its name.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 include/linux/usb/gadget.h | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h
index 68fb5e8..a9a4959 100644
--- a/include/linux/usb/gadget.h
+++ b/include/linux/usb/gadget.h
@@ -141,10 +141,29 @@ struct usb_ep_ops {
 };
 
 /**
+ * struct usb_ep_caps - endpoint capabilities description
+ * @type_control:Endpoint supports control type (reserved for ep0).
+ * @type_iso:Endpoint supports isochronous transfers.
+ * @type_bulk:Endpoint supports bulk transfers.
+ * @type_int:Endpoint supports interrupt transfers.
+ * @dir_in:Endpoint supports IN direction.
+ * @dir_out:Endpoint supports OUT direction.
+ */
+struct usb_ep_caps {
+	unsigned type_control:1;
+	unsigned type_iso:1;
+	unsigned type_bulk:1;
+	unsigned type_int:1;
+	unsigned dir_in:1;
+	unsigned dir_out:1;
+};
+
+/**
  * struct usb_ep - device side representation of USB endpoint
  * @name:identifier for the endpoint, such as "ep-a" or "ep9in-bulk"
  * @ops: Function pointers used to access hardware-specific operations.
  * @ep_list:the gadget's ep_list holds all of its endpoints
+ * @caps:The structure describing types and directions supported by endoint.
  * @maxpacket:The maximum packet size used on this endpoint.  The initial
  *	value can sometimes be reduced (hardware allowing), according to
  *      the endpoint descriptor used to configure the endpoint.
@@ -167,12 +186,14 @@ struct usb_ep_ops {
  * gadget->ep_list.  the control endpoint (gadget->ep0) is not in that list,
  * and is accessed only in response to a driver setup() callback.
  */
+
 struct usb_ep {
 	void			*driver_data;
 
 	const char		*name;
 	const struct usb_ep_ops	*ops;
 	struct list_head	ep_list;
+	struct usb_ep_caps	caps;
 	bool			claimed;
 	unsigned		maxpacket:16;
 	unsigned		maxpacket_limit:16;
-- 
1.9.1

[PATCH v5 02/46] usb: gadget: add endpoint capabilities flags

[Robert Baldyga]

Introduce struct usb_ep_caps which contains information about capabilities
of usb endpoints - supported transfer types and directions. This structure
should be filled by UDC driver for each of its endpoints, and will be
used in epautoconf in new ep matching mechanism which will replace ugly
guessing of endpoint capabilities basing on its name.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 include/linux/usb/gadget.h | 21 +++++++++++++++++++++
 1 file changed, 21 insertions(+)

diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h
index 68fb5e8..a9a4959 100644
--- a/include/linux/usb/gadget.h
+++ b/include/linux/usb/gadget.h
@@ -141,10 +141,29 @@ struct usb_ep_ops {
 };
 
 /**
+ * struct usb_ep_caps - endpoint capabilities description
+ * @type_control:Endpoint supports control type (reserved for ep0).
+ * @type_iso:Endpoint supports isochronous transfers.
+ * @type_bulk:Endpoint supports bulk transfers.
+ * @type_int:Endpoint supports interrupt transfers.
+ * @dir_in:Endpoint supports IN direction.
+ * @dir_out:Endpoint supports OUT direction.
+ */
+struct usb_ep_caps {
+	unsigned type_control:1;
+	unsigned type_iso:1;
+	unsigned type_bulk:1;
+	unsigned type_int:1;
+	unsigned dir_in:1;
+	unsigned dir_out:1;
+};
+
+/**
  * struct usb_ep - device side representation of USB endpoint
  * @name:identifier for the endpoint, such as "ep-a" or "ep9in-bulk"
  * @ops: Function pointers used to access hardware-specific operations.
  * @ep_list:the gadget's ep_list holds all of its endpoints
+ * @caps:The structure describing types and directions supported by endoint.
  * @maxpacket:The maximum packet size used on this endpoint.  The initial
  *	value can sometimes be reduced (hardware allowing), according to
  *      the endpoint descriptor used to configure the endpoint.
@@ -167,12 +186,14 @@ struct usb_ep_ops {
  * gadget->ep_list.  the control endpoint (gadget->ep0) is not in that list,
  * and is accessed only in response to a driver setup() callback.
  */
+
 struct usb_ep {
 	void			*driver_data;
 
 	const char		*name;
 	const struct usb_ep_ops	*ops;
 	struct list_head	ep_list;
+	struct usb_ep_caps	caps;
 	bool			claimed;
 	unsigned		maxpacket:16;
 	unsigned		maxpacket_limit:16;
-- 
1.9.1

[PATCH v5 03/46] usb: gadget: add endpoint capabilities helper macros

[Robert Baldyga]

Add macros useful while initializing array of endpoint capabilities
structures. These macros makes structure initialization more compact
to decrease number of code lines and increase readability of code.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 include/linux/usb/gadget.h | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h
index a9a4959..82b5bcb 100644
--- a/include/linux/usb/gadget.h
+++ b/include/linux/usb/gadget.h
@@ -158,6 +158,26 @@ struct usb_ep_caps {
 	unsigned dir_out:1;
 };
 
+#define USB_EP_CAPS_TYPE_CONTROL     0x01
+#define USB_EP_CAPS_TYPE_ISO         0x02
+#define USB_EP_CAPS_TYPE_BULK        0x04
+#define USB_EP_CAPS_TYPE_INT         0x08
+#define USB_EP_CAPS_TYPE_ALL \
+	(USB_EP_CAPS_TYPE_ISO | USB_EP_CAPS_TYPE_BULK | USB_EP_CAPS_TYPE_INT)
+#define USB_EP_CAPS_DIR_IN           0x01
+#define USB_EP_CAPS_DIR_OUT          0x02
+#define USB_EP_CAPS_DIR_ALL  (USB_EP_CAPS_DIR_IN | USB_EP_CAPS_DIR_OUT)
+
+#define USB_EP_CAPS(_type, _dir) \
+	{ \
+		.type_control = !!(_type & USB_EP_CAPS_TYPE_CONTROL), \
+		.type_iso = !!(_type & USB_EP_CAPS_TYPE_ISO), \
+		.type_bulk = !!(_type & USB_EP_CAPS_TYPE_BULK), \
+		.type_int = !!(_type & USB_EP_CAPS_TYPE_INT), \
+		.dir_in = !!(_dir & USB_EP_CAPS_DIR_IN), \
+		.dir_out = !!(_dir & USB_EP_CAPS_DIR_OUT), \
+	}
+
 /**
  * struct usb_ep - device side representation of USB endpoint
  * @name:identifier for the endpoint, such as "ep-a" or "ep9in-bulk"
-- 
1.9.1

[PATCH v5 03/46] usb: gadget: add endpoint capabilities helper macros

[Robert Baldyga]

Add macros useful while initializing array of endpoint capabilities
structures. These macros makes structure initialization more compact
to decrease number of code lines and increase readability of code.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 include/linux/usb/gadget.h | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h
index a9a4959..82b5bcb 100644
--- a/include/linux/usb/gadget.h
+++ b/include/linux/usb/gadget.h
@@ -158,6 +158,26 @@ struct usb_ep_caps {
 	unsigned dir_out:1;
 };
 
+#define USB_EP_CAPS_TYPE_CONTROL     0x01
+#define USB_EP_CAPS_TYPE_ISO         0x02
+#define USB_EP_CAPS_TYPE_BULK        0x04
+#define USB_EP_CAPS_TYPE_INT         0x08
+#define USB_EP_CAPS_TYPE_ALL \
+	(USB_EP_CAPS_TYPE_ISO | USB_EP_CAPS_TYPE_BULK | USB_EP_CAPS_TYPE_INT)
+#define USB_EP_CAPS_DIR_IN           0x01
+#define USB_EP_CAPS_DIR_OUT          0x02
+#define USB_EP_CAPS_DIR_ALL  (USB_EP_CAPS_DIR_IN | USB_EP_CAPS_DIR_OUT)
+
+#define USB_EP_CAPS(_type, _dir) \
+	{ \
+		.type_control = !!(_type & USB_EP_CAPS_TYPE_CONTROL), \
+		.type_iso = !!(_type & USB_EP_CAPS_TYPE_ISO), \
+		.type_bulk = !!(_type & USB_EP_CAPS_TYPE_BULK), \
+		.type_int = !!(_type & USB_EP_CAPS_TYPE_INT), \
+		.dir_in = !!(_dir & USB_EP_CAPS_DIR_IN), \
+		.dir_out = !!(_dir & USB_EP_CAPS_DIR_OUT), \
+	}
+
 /**
  * struct usb_ep - device side representation of USB endpoint
  * @name:identifier for the endpoint, such as "ep-a" or "ep9in-bulk"
-- 
1.9.1

[PATCH v5 03/46] usb: gadget: add endpoint capabilities helper macros

[Robert Baldyga]

Add macros useful while initializing array of endpoint capabilities
structures. These macros makes structure initialization more compact
to decrease number of code lines and increase readability of code.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 include/linux/usb/gadget.h | 20 ++++++++++++++++++++
 1 file changed, 20 insertions(+)

diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h
index a9a4959..82b5bcb 100644
--- a/include/linux/usb/gadget.h
+++ b/include/linux/usb/gadget.h
@@ -158,6 +158,26 @@ struct usb_ep_caps {
 	unsigned dir_out:1;
 };
 
+#define USB_EP_CAPS_TYPE_CONTROL     0x01
+#define USB_EP_CAPS_TYPE_ISO         0x02
+#define USB_EP_CAPS_TYPE_BULK        0x04
+#define USB_EP_CAPS_TYPE_INT         0x08
+#define USB_EP_CAPS_TYPE_ALL \
+	(USB_EP_CAPS_TYPE_ISO | USB_EP_CAPS_TYPE_BULK | USB_EP_CAPS_TYPE_INT)
+#define USB_EP_CAPS_DIR_IN           0x01
+#define USB_EP_CAPS_DIR_OUT          0x02
+#define USB_EP_CAPS_DIR_ALL  (USB_EP_CAPS_DIR_IN | USB_EP_CAPS_DIR_OUT)
+
+#define USB_EP_CAPS(_type, _dir) \
+	{ \
+		.type_control = !!(_type & USB_EP_CAPS_TYPE_CONTROL), \
+		.type_iso = !!(_type & USB_EP_CAPS_TYPE_ISO), \
+		.type_bulk = !!(_type & USB_EP_CAPS_TYPE_BULK), \
+		.type_int = !!(_type & USB_EP_CAPS_TYPE_INT), \
+		.dir_in = !!(_dir & USB_EP_CAPS_DIR_IN), \
+		.dir_out = !!(_dir & USB_EP_CAPS_DIR_OUT), \
+	}
+
 /**
  * struct usb_ep - device side representation of USB endpoint
  * @name:identifier for the endpoint, such as "ep-a" or "ep9in-bulk"
-- 
1.9.1

[PATCH v5 04/46] staging: emxx_udc: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Fixed typo in "epc-nulk" to "epc-bulk".

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/staging/emxx_udc/emxx_udc.c | 73 +++++++++++++++++++++----------------
 1 file changed, 42 insertions(+), 31 deletions(-)

diff --git a/drivers/staging/emxx_udc/emxx_udc.c b/drivers/staging/emxx_udc/emxx_udc.c
index 3b7aa36..b6b76ff 100644
--- a/drivers/staging/emxx_udc/emxx_udc.c
+++ b/drivers/staging/emxx_udc/emxx_udc.c
@@ -3153,36 +3153,46 @@ static const struct usb_gadget_ops nbu2ss_gadget_ops = {
 	.ioctl			= nbu2ss_gad_ioctl,
 };
 
-static const char g_ep0_name[] = "ep0";
-static const char g_ep1_name[] = "ep1-bulk";
-static const char g_ep2_name[] = "ep2-bulk";
-static const char g_ep3_name[] = "ep3in-int";
-static const char g_ep4_name[] = "ep4-iso";
-static const char g_ep5_name[] = "ep5-iso";
-static const char g_ep6_name[] = "ep6-bulk";
-static const char g_ep7_name[] = "ep7-bulk";
-static const char g_ep8_name[] = "ep8in-int";
-static const char g_ep9_name[] = "ep9-iso";
-static const char g_epa_name[] = "epa-iso";
-static const char g_epb_name[] = "epb-bulk";
-static const char g_epc_name[] = "epc-nulk";
-static const char g_epd_name[] = "epdin-int";
-
-static const char *gp_ep_name[NUM_ENDPOINTS] = {
-	g_ep0_name,
-	g_ep1_name,
-	g_ep2_name,
-	g_ep3_name,
-	g_ep4_name,
-	g_ep5_name,
-	g_ep6_name,
-	g_ep7_name,
-	g_ep8_name,
-	g_ep9_name,
-	g_epa_name,
-	g_epb_name,
-	g_epc_name,
-	g_epd_name,
+static const struct {
+	const char *name;
+	const struct usb_ep_caps caps;
+} ep_info[NUM_ENDPOINTS] = {
+#define EP_INFO(_name, _caps) \
+	{ \
+		.name = _name, \
+		.caps = _caps, \
+	}
+
+	EP_INFO("ep0",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_CONTROL, USB_EP_CAPS_DIR_ALL)),
+	EP_INFO("ep1-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_ALL)),
+	EP_INFO("ep2-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_ALL)),
+	EP_INFO("ep3in-int",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_INT, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep4-iso",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ISO, USB_EP_CAPS_DIR_ALL)),
+	EP_INFO("ep5-iso",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ISO, USB_EP_CAPS_DIR_ALL)),
+	EP_INFO("ep6-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_ALL)),
+	EP_INFO("ep7-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_ALL)),
+	EP_INFO("ep8in-int",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_INT, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep9-iso",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ISO, USB_EP_CAPS_DIR_ALL)),
+	EP_INFO("epa-iso",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ISO, USB_EP_CAPS_DIR_ALL)),
+	EP_INFO("epb-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_ALL)),
+	EP_INFO("epc-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_ALL)),
+	EP_INFO("epdin-int",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_INT, USB_EP_CAPS_DIR_IN)),
+
+#undef EP_INFO
 };
 
 /*-------------------------------------------------------------------------*/
@@ -3200,7 +3210,8 @@ static void __init nbu2ss_drv_ep_init(struct nbu2ss_udc *udc)
 		ep->desc = NULL;
 
 		ep->ep.driver_data = NULL;
-		ep->ep.name = gp_ep_name[i];
+		ep->ep.name = ep_info[i].name;
+		ep->ep.caps = ep_info[i].caps;
 		ep->ep.ops = &nbu2ss_ep_ops;
 
 		usb_ep_set_maxpacket_limit(&ep->ep,
-- 
1.9.1

[PATCH v5 04/46] staging: emxx_udc: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Fixed typo in "epc-nulk" to "epc-bulk".

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/staging/emxx_udc/emxx_udc.c | 73 +++++++++++++++++++++----------------
 1 file changed, 42 insertions(+), 31 deletions(-)

diff --git a/drivers/staging/emxx_udc/emxx_udc.c b/drivers/staging/emxx_udc/emxx_udc.c
index 3b7aa36..b6b76ff 100644
--- a/drivers/staging/emxx_udc/emxx_udc.c
+++ b/drivers/staging/emxx_udc/emxx_udc.c
@@ -3153,36 +3153,46 @@ static const struct usb_gadget_ops nbu2ss_gadget_ops = {
 	.ioctl			= nbu2ss_gad_ioctl,
 };
 
-static const char g_ep0_name[] = "ep0";
-static const char g_ep1_name[] = "ep1-bulk";
-static const char g_ep2_name[] = "ep2-bulk";
-static const char g_ep3_name[] = "ep3in-int";
-static const char g_ep4_name[] = "ep4-iso";
-static const char g_ep5_name[] = "ep5-iso";
-static const char g_ep6_name[] = "ep6-bulk";
-static const char g_ep7_name[] = "ep7-bulk";
-static const char g_ep8_name[] = "ep8in-int";
-static const char g_ep9_name[] = "ep9-iso";
-static const char g_epa_name[] = "epa-iso";
-static const char g_epb_name[] = "epb-bulk";
-static const char g_epc_name[] = "epc-nulk";
-static const char g_epd_name[] = "epdin-int";
-
-static const char *gp_ep_name[NUM_ENDPOINTS] = {
-	g_ep0_name,
-	g_ep1_name,
-	g_ep2_name,
-	g_ep3_name,
-	g_ep4_name,
-	g_ep5_name,
-	g_ep6_name,
-	g_ep7_name,
-	g_ep8_name,
-	g_ep9_name,
-	g_epa_name,
-	g_epb_name,
-	g_epc_name,
-	g_epd_name,
+static const struct {
+	const char *name;
+	const struct usb_ep_caps caps;
+} ep_info[NUM_ENDPOINTS] = {
+#define EP_INFO(_name, _caps) \
+	{ \
+		.name = _name, \
+		.caps = _caps, \
+	}
+
+	EP_INFO("ep0",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_CONTROL, USB_EP_CAPS_DIR_ALL)),
+	EP_INFO("ep1-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_ALL)),
+	EP_INFO("ep2-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_ALL)),
+	EP_INFO("ep3in-int",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_INT, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep4-iso",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ISO, USB_EP_CAPS_DIR_ALL)),
+	EP_INFO("ep5-iso",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ISO, USB_EP_CAPS_DIR_ALL)),
+	EP_INFO("ep6-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_ALL)),
+	EP_INFO("ep7-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_ALL)),
+	EP_INFO("ep8in-int",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_INT, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep9-iso",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ISO, USB_EP_CAPS_DIR_ALL)),
+	EP_INFO("epa-iso",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ISO, USB_EP_CAPS_DIR_ALL)),
+	EP_INFO("epb-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_ALL)),
+	EP_INFO("epc-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_ALL)),
+	EP_INFO("epdin-int",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_INT, USB_EP_CAPS_DIR_IN)),
+
+#undef EP_INFO
 };
 
 /*-------------------------------------------------------------------------*/
@@ -3200,7 +3210,8 @@ static void __init nbu2ss_drv_ep_init(struct nbu2ss_udc *udc)
 		ep->desc = NULL;
 
 		ep->ep.driver_data = NULL;
-		ep->ep.name = gp_ep_name[i];
+		ep->ep.name = ep_info[i].name;
+		ep->ep.caps = ep_info[i].caps;
 		ep->ep.ops = &nbu2ss_ep_ops;
 
 		usb_ep_set_maxpacket_limit(&ep->ep,
-- 
1.9.1

[PATCH v5 04/46] staging: emxx_udc: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Fixed typo in "epc-nulk" to "epc-bulk".

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/staging/emxx_udc/emxx_udc.c | 73 +++++++++++++++++++++----------------
 1 file changed, 42 insertions(+), 31 deletions(-)

diff --git a/drivers/staging/emxx_udc/emxx_udc.c b/drivers/staging/emxx_udc/emxx_udc.c
index 3b7aa36..b6b76ff 100644
--- a/drivers/staging/emxx_udc/emxx_udc.c
+++ b/drivers/staging/emxx_udc/emxx_udc.c
@@ -3153,36 +3153,46 @@ static const struct usb_gadget_ops nbu2ss_gadget_ops = {
 	.ioctl			= nbu2ss_gad_ioctl,
 };
 
-static const char g_ep0_name[] = "ep0";
-static const char g_ep1_name[] = "ep1-bulk";
-static const char g_ep2_name[] = "ep2-bulk";
-static const char g_ep3_name[] = "ep3in-int";
-static const char g_ep4_name[] = "ep4-iso";
-static const char g_ep5_name[] = "ep5-iso";
-static const char g_ep6_name[] = "ep6-bulk";
-static const char g_ep7_name[] = "ep7-bulk";
-static const char g_ep8_name[] = "ep8in-int";
-static const char g_ep9_name[] = "ep9-iso";
-static const char g_epa_name[] = "epa-iso";
-static const char g_epb_name[] = "epb-bulk";
-static const char g_epc_name[] = "epc-nulk";
-static const char g_epd_name[] = "epdin-int";
-
-static const char *gp_ep_name[NUM_ENDPOINTS] = {
-	g_ep0_name,
-	g_ep1_name,
-	g_ep2_name,
-	g_ep3_name,
-	g_ep4_name,
-	g_ep5_name,
-	g_ep6_name,
-	g_ep7_name,
-	g_ep8_name,
-	g_ep9_name,
-	g_epa_name,
-	g_epb_name,
-	g_epc_name,
-	g_epd_name,
+static const struct {
+	const char *name;
+	const struct usb_ep_caps caps;
+} ep_info[NUM_ENDPOINTS] = {
+#define EP_INFO(_name, _caps) \
+	{ \
+		.name = _name, \
+		.caps = _caps, \
+	}
+
+	EP_INFO("ep0",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_CONTROL, USB_EP_CAPS_DIR_ALL)),
+	EP_INFO("ep1-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_ALL)),
+	EP_INFO("ep2-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_ALL)),
+	EP_INFO("ep3in-int",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_INT, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep4-iso",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ISO, USB_EP_CAPS_DIR_ALL)),
+	EP_INFO("ep5-iso",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ISO, USB_EP_CAPS_DIR_ALL)),
+	EP_INFO("ep6-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_ALL)),
+	EP_INFO("ep7-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_ALL)),
+	EP_INFO("ep8in-int",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_INT, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep9-iso",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ISO, USB_EP_CAPS_DIR_ALL)),
+	EP_INFO("epa-iso",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ISO, USB_EP_CAPS_DIR_ALL)),
+	EP_INFO("epb-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_ALL)),
+	EP_INFO("epc-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_ALL)),
+	EP_INFO("epdin-int",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_INT, USB_EP_CAPS_DIR_IN)),
+
+#undef EP_INFO
 };
 
 /*-------------------------------------------------------------------------*/
@@ -3200,7 +3210,8 @@ static void __init nbu2ss_drv_ep_init(struct nbu2ss_udc *udc)
 		ep->desc = NULL;
 
 		ep->ep.driver_data = NULL;
-		ep->ep.name = gp_ep_name[i];
+		ep->ep.name = ep_info[i].name;
+		ep->ep.caps = ep_info[i].caps;
 		ep->ep.ops = &nbu2ss_ep_ops;
 
 		usb_ep_set_maxpacket_limit(&ep->ep,
-- 
1.9.1

[PATCH v5 05/46] usb: chipidea: udc: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/chipidea/udc.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/drivers/usb/chipidea/udc.c b/drivers/usb/chipidea/udc.c
index b7cca3e..4aaa476 100644
--- a/drivers/usb/chipidea/udc.c
+++ b/drivers/usb/chipidea/udc.c
@@ -1624,6 +1624,20 @@ static int init_eps(struct ci_hdrc *ci)
 
 			hwep->ep.name      = hwep->name;
 			hwep->ep.ops       = &usb_ep_ops;
+
+			if (i == 0) {
+				hwep->ep.caps.type_control = true;
+			} else {
+				hwep->ep.caps.type_iso = true;
+				hwep->ep.caps.type_bulk = true;
+				hwep->ep.caps.type_int = true;
+			}
+
+			if (j == TX)
+				hwep->ep.caps.dir_in = true;
+			else
+				hwep->ep.caps.dir_out = true;
+
 			/*
 			 * for ep0: maxP defined in desc, for other
 			 * eps, maxP is set by epautoconfig() called
-- 
1.9.1

[PATCH v5 05/46] usb: chipidea: udc: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/chipidea/udc.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/drivers/usb/chipidea/udc.c b/drivers/usb/chipidea/udc.c
index b7cca3e..4aaa476 100644
--- a/drivers/usb/chipidea/udc.c
+++ b/drivers/usb/chipidea/udc.c
@@ -1624,6 +1624,20 @@ static int init_eps(struct ci_hdrc *ci)
 
 			hwep->ep.name      = hwep->name;
 			hwep->ep.ops       = &usb_ep_ops;
+
+			if (i == 0) {
+				hwep->ep.caps.type_control = true;
+			} else {
+				hwep->ep.caps.type_iso = true;
+				hwep->ep.caps.type_bulk = true;
+				hwep->ep.caps.type_int = true;
+			}
+
+			if (j == TX)
+				hwep->ep.caps.dir_in = true;
+			else
+				hwep->ep.caps.dir_out = true;
+
 			/*
 			 * for ep0: maxP defined in desc, for other
 			 * eps, maxP is set by epautoconfig() called
-- 
1.9.1

[PATCH v5 05/46] usb: chipidea: udc: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/chipidea/udc.c | 14 ++++++++++++++
 1 file changed, 14 insertions(+)

diff --git a/drivers/usb/chipidea/udc.c b/drivers/usb/chipidea/udc.c
index b7cca3e..4aaa476 100644
--- a/drivers/usb/chipidea/udc.c
+++ b/drivers/usb/chipidea/udc.c
@@ -1624,6 +1624,20 @@ static int init_eps(struct ci_hdrc *ci)
 
 			hwep->ep.name      = hwep->name;
 			hwep->ep.ops       = &usb_ep_ops;
+
+			if (i == 0) {
+				hwep->ep.caps.type_control = true;
+			} else {
+				hwep->ep.caps.type_iso = true;
+				hwep->ep.caps.type_bulk = true;
+				hwep->ep.caps.type_int = true;
+			}
+
+			if (j == TX)
+				hwep->ep.caps.dir_in = true;
+			else
+				hwep->ep.caps.dir_out = true;
+
 			/*
 			 * for ep0: maxP defined in desc, for other
 			 * eps, maxP is set by epautoconfig() called
-- 
1.9.1

[PATCH v5 06/46] usb: dwc2: gadget: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/dwc2/gadget.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c
index 731b13d..3ee5b4c 100644
--- a/drivers/usb/dwc2/gadget.c
+++ b/drivers/usb/dwc2/gadget.c
@@ -3289,6 +3289,19 @@ static void s3c_hsotg_initep(struct dwc2_hsotg *hsotg,
 	usb_ep_set_maxpacket_limit(&hs_ep->ep, epnum ? 1024 : EP0_MPS_LIMIT);
 	hs_ep->ep.ops = &s3c_hsotg_ep_ops;
 
+	if (epnum == 0) {
+		hs_ep->ep.caps.type_control = true;
+	} else {
+		hs_ep->ep.caps.type_iso = true;
+		hs_ep->ep.caps.type_bulk = true;
+		hs_ep->ep.caps.type_int = true;
+	}
+
+	if (dir_in)
+		hs_ep->ep.caps.dir_in = true;
+	else
+		hs_ep->ep.caps.dir_out = true;
+
 	/*
 	 * if we're using dma, we need to set the next-endpoint pointer
 	 * to be something valid.
-- 
1.9.1

[PATCH v5 06/46] usb: dwc2: gadget: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/dwc2/gadget.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c
index 731b13d..3ee5b4c 100644
--- a/drivers/usb/dwc2/gadget.c
+++ b/drivers/usb/dwc2/gadget.c
@@ -3289,6 +3289,19 @@ static void s3c_hsotg_initep(struct dwc2_hsotg *hsotg,
 	usb_ep_set_maxpacket_limit(&hs_ep->ep, epnum ? 1024 : EP0_MPS_LIMIT);
 	hs_ep->ep.ops = &s3c_hsotg_ep_ops;
 
+	if (epnum == 0) {
+		hs_ep->ep.caps.type_control = true;
+	} else {
+		hs_ep->ep.caps.type_iso = true;
+		hs_ep->ep.caps.type_bulk = true;
+		hs_ep->ep.caps.type_int = true;
+	}
+
+	if (dir_in)
+		hs_ep->ep.caps.dir_in = true;
+	else
+		hs_ep->ep.caps.dir_out = true;
+
 	/*
 	 * if we're using dma, we need to set the next-endpoint pointer
 	 * to be something valid.
-- 
1.9.1

[PATCH v5 06/46] usb: dwc2: gadget: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/dwc2/gadget.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/drivers/usb/dwc2/gadget.c b/drivers/usb/dwc2/gadget.c
index 731b13d..3ee5b4c 100644
--- a/drivers/usb/dwc2/gadget.c
+++ b/drivers/usb/dwc2/gadget.c
@@ -3289,6 +3289,19 @@ static void s3c_hsotg_initep(struct dwc2_hsotg *hsotg,
 	usb_ep_set_maxpacket_limit(&hs_ep->ep, epnum ? 1024 : EP0_MPS_LIMIT);
 	hs_ep->ep.ops = &s3c_hsotg_ep_ops;
 
+	if (epnum == 0) {
+		hs_ep->ep.caps.type_control = true;
+	} else {
+		hs_ep->ep.caps.type_iso = true;
+		hs_ep->ep.caps.type_bulk = true;
+		hs_ep->ep.caps.type_int = true;
+	}
+
+	if (dir_in)
+		hs_ep->ep.caps.dir_in = true;
+	else
+		hs_ep->ep.caps.dir_out = true;
+
 	/*
 	 * if we're using dma, we need to set the next-endpoint pointer
 	 * to be something valid.
-- 
1.9.1

[PATCH v5 07/46] usb: dwc3: gadget: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/dwc3/gadget.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index 2feed9e..bd4c3db 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -1715,6 +1715,19 @@ static int dwc3_gadget_init_hw_endpoints(struct dwc3 *dwc,
 				return ret;
 		}
 
+		if (epnum == 0 || epnum == 1) {
+			dep->endpoint.caps.type_control = true;
+		} else {
+			dep->endpoint.caps.type_iso = true;
+			dep->endpoint.caps.type_bulk = true;
+			dep->endpoint.caps.type_int = true;
+		}
+
+		if (direction)
+			dep->endpoint.caps.dir_in = true;
+		else
+			dep->endpoint.caps.dir_out = true;
+
 		INIT_LIST_HEAD(&dep->request_list);
 		INIT_LIST_HEAD(&dep->req_queued);
 	}
-- 
1.9.1

[PATCH v5 07/46] usb: dwc3: gadget: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/dwc3/gadget.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index 2feed9e..bd4c3db 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -1715,6 +1715,19 @@ static int dwc3_gadget_init_hw_endpoints(struct dwc3 *dwc,
 				return ret;
 		}
 
+		if (epnum == 0 || epnum == 1) {
+			dep->endpoint.caps.type_control = true;
+		} else {
+			dep->endpoint.caps.type_iso = true;
+			dep->endpoint.caps.type_bulk = true;
+			dep->endpoint.caps.type_int = true;
+		}
+
+		if (direction)
+			dep->endpoint.caps.dir_in = true;
+		else
+			dep->endpoint.caps.dir_out = true;
+
 		INIT_LIST_HEAD(&dep->request_list);
 		INIT_LIST_HEAD(&dep->req_queued);
 	}
-- 
1.9.1

[PATCH v5 07/46] usb: dwc3: gadget: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/dwc3/gadget.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
index 2feed9e..bd4c3db 100644
--- a/drivers/usb/dwc3/gadget.c
+++ b/drivers/usb/dwc3/gadget.c
@@ -1715,6 +1715,19 @@ static int dwc3_gadget_init_hw_endpoints(struct dwc3 *dwc,
 				return ret;
 		}
 
+		if (epnum == 0 || epnum == 1) {
+			dep->endpoint.caps.type_control = true;
+		} else {
+			dep->endpoint.caps.type_iso = true;
+			dep->endpoint.caps.type_bulk = true;
+			dep->endpoint.caps.type_int = true;
+		}
+
+		if (direction)
+			dep->endpoint.caps.dir_in = true;
+		else
+			dep->endpoint.caps.dir_out = true;
+
 		INIT_LIST_HEAD(&dep->request_list);
 		INIT_LIST_HEAD(&dep->req_queued);
 	}
-- 
1.9.1

[PATCH v5 08/46] usb: gadget: amd5536udc: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/udc/amd5536udc.c | 88 ++++++++++++++++++++++++++++++++-----
 1 file changed, 78 insertions(+), 10 deletions(-)

diff --git a/drivers/usb/gadget/udc/amd5536udc.c b/drivers/usb/gadget/udc/amd5536udc.c
index de7e5e2..fdacddb 100644
--- a/drivers/usb/gadget/udc/amd5536udc.c
+++ b/drivers/usb/gadget/udc/amd5536udc.c
@@ -138,15 +138,82 @@ static DECLARE_TASKLET(disconnect_tasklet, udc_tasklet_disconnect,
 
 /* endpoint names used for print */
 static const char ep0_string[] = "ep0in";
-static const char *const ep_string[] = {
-	ep0_string,
-	"ep1in-int", "ep2in-bulk", "ep3in-bulk", "ep4in-bulk", "ep5in-bulk",
-	"ep6in-bulk", "ep7in-bulk", "ep8in-bulk", "ep9in-bulk", "ep10in-bulk",
-	"ep11in-bulk", "ep12in-bulk", "ep13in-bulk", "ep14in-bulk",
-	"ep15in-bulk", "ep0out", "ep1out-bulk", "ep2out-bulk", "ep3out-bulk",
-	"ep4out-bulk", "ep5out-bulk", "ep6out-bulk", "ep7out-bulk",
-	"ep8out-bulk", "ep9out-bulk", "ep10out-bulk", "ep11out-bulk",
-	"ep12out-bulk", "ep13out-bulk", "ep14out-bulk", "ep15out-bulk"
+static const struct {
+	const char *name;
+	const struct usb_ep_caps caps;
+} ep_info[] = {
+#define EP_INFO(_name, _caps) \
+	{ \
+		.name = _name, \
+		.caps = _caps, \
+	}
+
+	EP_INFO(ep0_string,
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_CONTROL, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep1in-int",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep2in-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep3in-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep4in-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep5in-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep6in-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep7in-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep8in-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep9in-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep10in-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep11in-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep12in-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep13in-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep14in-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep15in-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep0out",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_CONTROL, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep1out-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep2out-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep3out-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep4out-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep5out-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep6out-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep7out-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep8out-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep9out-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep10out-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep11out-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep12out-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep13out-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep14out-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep15out-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_OUT)),
+
+#undef EP_INFO
 };
 
 /* DMA usage flag */
@@ -1517,7 +1584,8 @@ static void udc_setup_endpoints(struct udc *dev)
 	for (tmp = 0; tmp < UDC_EP_NUM; tmp++) {
 		ep = &dev->ep[tmp];
 		ep->dev = dev;
-		ep->ep.name = ep_string[tmp];
+		ep->ep.name = ep_info[tmp].name;
+		ep->ep.caps = ep_info[tmp].caps;
 		ep->num = tmp;
 		/* txfifo size is calculated at enable time */
 		ep->txfifo = dev->txfifo;
-- 
1.9.1

[PATCH v5 08/46] usb: gadget: amd5536udc: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/udc/amd5536udc.c | 88 ++++++++++++++++++++++++++++++++-----
 1 file changed, 78 insertions(+), 10 deletions(-)

diff --git a/drivers/usb/gadget/udc/amd5536udc.c b/drivers/usb/gadget/udc/amd5536udc.c
index de7e5e2..fdacddb 100644
--- a/drivers/usb/gadget/udc/amd5536udc.c
+++ b/drivers/usb/gadget/udc/amd5536udc.c
@@ -138,15 +138,82 @@ static DECLARE_TASKLET(disconnect_tasklet, udc_tasklet_disconnect,
 
 /* endpoint names used for print */
 static const char ep0_string[] = "ep0in";
-static const char *const ep_string[] = {
-	ep0_string,
-	"ep1in-int", "ep2in-bulk", "ep3in-bulk", "ep4in-bulk", "ep5in-bulk",
-	"ep6in-bulk", "ep7in-bulk", "ep8in-bulk", "ep9in-bulk", "ep10in-bulk",
-	"ep11in-bulk", "ep12in-bulk", "ep13in-bulk", "ep14in-bulk",
-	"ep15in-bulk", "ep0out", "ep1out-bulk", "ep2out-bulk", "ep3out-bulk",
-	"ep4out-bulk", "ep5out-bulk", "ep6out-bulk", "ep7out-bulk",
-	"ep8out-bulk", "ep9out-bulk", "ep10out-bulk", "ep11out-bulk",
-	"ep12out-bulk", "ep13out-bulk", "ep14out-bulk", "ep15out-bulk"
+static const struct {
+	const char *name;
+	const struct usb_ep_caps caps;
+} ep_info[] = {
+#define EP_INFO(_name, _caps) \
+	{ \
+		.name = _name, \
+		.caps = _caps, \
+	}
+
+	EP_INFO(ep0_string,
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_CONTROL, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep1in-int",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep2in-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep3in-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep4in-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep5in-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep6in-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep7in-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep8in-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep9in-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep10in-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep11in-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep12in-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep13in-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep14in-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep15in-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep0out",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_CONTROL, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep1out-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep2out-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep3out-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep4out-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep5out-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep6out-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep7out-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep8out-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep9out-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep10out-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep11out-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep12out-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep13out-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep14out-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep15out-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_OUT)),
+
+#undef EP_INFO
 };
 
 /* DMA usage flag */
@@ -1517,7 +1584,8 @@ static void udc_setup_endpoints(struct udc *dev)
 	for (tmp = 0; tmp < UDC_EP_NUM; tmp++) {
 		ep = &dev->ep[tmp];
 		ep->dev = dev;
-		ep->ep.name = ep_string[tmp];
+		ep->ep.name = ep_info[tmp].name;
+		ep->ep.caps = ep_info[tmp].caps;
 		ep->num = tmp;
 		/* txfifo size is calculated at enable time */
 		ep->txfifo = dev->txfifo;
-- 
1.9.1

[PATCH v5 08/46] usb: gadget: amd5536udc: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/udc/amd5536udc.c | 88 ++++++++++++++++++++++++++++++++-----
 1 file changed, 78 insertions(+), 10 deletions(-)

diff --git a/drivers/usb/gadget/udc/amd5536udc.c b/drivers/usb/gadget/udc/amd5536udc.c
index de7e5e2..fdacddb 100644
--- a/drivers/usb/gadget/udc/amd5536udc.c
+++ b/drivers/usb/gadget/udc/amd5536udc.c
@@ -138,15 +138,82 @@ static DECLARE_TASKLET(disconnect_tasklet, udc_tasklet_disconnect,
 
 /* endpoint names used for print */
 static const char ep0_string[] = "ep0in";
-static const char *const ep_string[] = {
-	ep0_string,
-	"ep1in-int", "ep2in-bulk", "ep3in-bulk", "ep4in-bulk", "ep5in-bulk",
-	"ep6in-bulk", "ep7in-bulk", "ep8in-bulk", "ep9in-bulk", "ep10in-bulk",
-	"ep11in-bulk", "ep12in-bulk", "ep13in-bulk", "ep14in-bulk",
-	"ep15in-bulk", "ep0out", "ep1out-bulk", "ep2out-bulk", "ep3out-bulk",
-	"ep4out-bulk", "ep5out-bulk", "ep6out-bulk", "ep7out-bulk",
-	"ep8out-bulk", "ep9out-bulk", "ep10out-bulk", "ep11out-bulk",
-	"ep12out-bulk", "ep13out-bulk", "ep14out-bulk", "ep15out-bulk"
+static const struct {
+	const char *name;
+	const struct usb_ep_caps caps;
+} ep_info[] = {
+#define EP_INFO(_name, _caps) \
+	{ \
+		.name = _name, \
+		.caps = _caps, \
+	}
+
+	EP_INFO(ep0_string,
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_CONTROL, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep1in-int",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep2in-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep3in-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep4in-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep5in-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep6in-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep7in-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep8in-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep9in-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep10in-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep11in-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep12in-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep13in-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep14in-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep15in-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep0out",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_CONTROL, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep1out-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep2out-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep3out-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep4out-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep5out-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep6out-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep7out-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep8out-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep9out-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep10out-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep11out-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep12out-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep13out-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep14out-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep15out-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_OUT)),
+
+#undef EP_INFO
 };
 
 /* DMA usage flag */
@@ -1517,7 +1584,8 @@ static void udc_setup_endpoints(struct udc *dev)
 	for (tmp = 0; tmp < UDC_EP_NUM; tmp++) {
 		ep = &dev->ep[tmp];
 		ep->dev = dev;
-		ep->ep.name = ep_string[tmp];
+		ep->ep.name = ep_info[tmp].name;
+		ep->ep.caps = ep_info[tmp].caps;
 		ep->num = tmp;
 		/* txfifo size is calculated at enable time */
 		ep->txfifo = dev->txfifo;
-- 
1.9.1

[PATCH v5 09/46] usb: gadget: at91_udc: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/udc/at91_udc.c | 38 +++++++++++++++++++++++++++++---------
 1 file changed, 29 insertions(+), 9 deletions(-)

diff --git a/drivers/usb/gadget/udc/at91_udc.c b/drivers/usb/gadget/udc/at91_udc.c
index 32f50a7..d0d1894 100644
--- a/drivers/usb/gadget/udc/at91_udc.c
+++ b/drivers/usb/gadget/udc/at91_udc.c
@@ -59,15 +59,34 @@
 #define	DRIVER_VERSION	"3 May 2006"
 
 static const char driver_name [] = "at91_udc";
-static const char * const ep_names[] = {
-	"ep0",
-	"ep1",
-	"ep2",
-	"ep3-int",
-	"ep4",
-	"ep5",
+
+static const struct {
+	const char *name;
+	const struct usb_ep_caps caps;
+} ep_info[] = {
+#define EP_INFO(_name, _caps) \
+	{ \
+		.name = _name, \
+		.caps = _caps, \
+	}
+
+	EP_INFO("ep0",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_CONTROL, USB_EP_CAPS_DIR_ALL)),
+	EP_INFO("ep1",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_ALL)),
+	EP_INFO("ep2",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_ALL)),
+	EP_INFO("ep3-int",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_INT, USB_EP_CAPS_DIR_ALL)),
+	EP_INFO("ep4",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_ALL)),
+	EP_INFO("ep5",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_ALL)),
+
+#undef EP_INFO
 };
-#define ep0name		ep_names[0]
+
+#define ep0name		ep_info[0].name
 
 #define VBUS_POLL_TIMEOUT	msecs_to_jiffies(1000)
 
@@ -1831,7 +1850,8 @@ static int at91udc_probe(struct platform_device *pdev)
 
 	for (i = 0; i < NUM_ENDPOINTS; i++) {
 		ep = &udc->ep[i];
-		ep->ep.name = ep_names[i];
+		ep->ep.name = ep_info[i].name;
+		ep->ep.caps = ep_info[i].caps;
 		ep->ep.ops = &at91_ep_ops;
 		ep->udc = udc;
 		ep->int_mask = BIT(i);
-- 
1.9.1

[PATCH v5 09/46] usb: gadget: at91_udc: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/udc/at91_udc.c | 38 +++++++++++++++++++++++++++++---------
 1 file changed, 29 insertions(+), 9 deletions(-)

diff --git a/drivers/usb/gadget/udc/at91_udc.c b/drivers/usb/gadget/udc/at91_udc.c
index 32f50a7..d0d1894 100644
--- a/drivers/usb/gadget/udc/at91_udc.c
+++ b/drivers/usb/gadget/udc/at91_udc.c
@@ -59,15 +59,34 @@
 #define	DRIVER_VERSION	"3 May 2006"
 
 static const char driver_name [] = "at91_udc";
-static const char * const ep_names[] = {
-	"ep0",
-	"ep1",
-	"ep2",
-	"ep3-int",
-	"ep4",
-	"ep5",
+
+static const struct {
+	const char *name;
+	const struct usb_ep_caps caps;
+} ep_info[] = {
+#define EP_INFO(_name, _caps) \
+	{ \
+		.name = _name, \
+		.caps = _caps, \
+	}
+
+	EP_INFO("ep0",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_CONTROL, USB_EP_CAPS_DIR_ALL)),
+	EP_INFO("ep1",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_ALL)),
+	EP_INFO("ep2",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_ALL)),
+	EP_INFO("ep3-int",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_INT, USB_EP_CAPS_DIR_ALL)),
+	EP_INFO("ep4",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_ALL)),
+	EP_INFO("ep5",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_ALL)),
+
+#undef EP_INFO
 };
-#define ep0name		ep_names[0]
+
+#define ep0name		ep_info[0].name
 
 #define VBUS_POLL_TIMEOUT	msecs_to_jiffies(1000)
 
@@ -1831,7 +1850,8 @@ static int at91udc_probe(struct platform_device *pdev)
 
 	for (i = 0; i < NUM_ENDPOINTS; i++) {
 		ep = &udc->ep[i];
-		ep->ep.name = ep_names[i];
+		ep->ep.name = ep_info[i].name;
+		ep->ep.caps = ep_info[i].caps;
 		ep->ep.ops = &at91_ep_ops;
 		ep->udc = udc;
 		ep->int_mask = BIT(i);
-- 
1.9.1

[PATCH v5 09/46] usb: gadget: at91_udc: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/udc/at91_udc.c | 38 +++++++++++++++++++++++++++++---------
 1 file changed, 29 insertions(+), 9 deletions(-)

diff --git a/drivers/usb/gadget/udc/at91_udc.c b/drivers/usb/gadget/udc/at91_udc.c
index 32f50a7..d0d1894 100644
--- a/drivers/usb/gadget/udc/at91_udc.c
+++ b/drivers/usb/gadget/udc/at91_udc.c
@@ -59,15 +59,34 @@
 #define	DRIVER_VERSION	"3 May 2006"
 
 static const char driver_name [] = "at91_udc";
-static const char * const ep_names[] = {
-	"ep0",
-	"ep1",
-	"ep2",
-	"ep3-int",
-	"ep4",
-	"ep5",
+
+static const struct {
+	const char *name;
+	const struct usb_ep_caps caps;
+} ep_info[] = {
+#define EP_INFO(_name, _caps) \
+	{ \
+		.name = _name, \
+		.caps = _caps, \
+	}
+
+	EP_INFO("ep0",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_CONTROL, USB_EP_CAPS_DIR_ALL)),
+	EP_INFO("ep1",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_ALL)),
+	EP_INFO("ep2",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_ALL)),
+	EP_INFO("ep3-int",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_INT, USB_EP_CAPS_DIR_ALL)),
+	EP_INFO("ep4",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_ALL)),
+	EP_INFO("ep5",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_ALL)),
+
+#undef EP_INFO
 };
-#define ep0name		ep_names[0]
+
+#define ep0name		ep_info[0].name
 
 #define VBUS_POLL_TIMEOUT	msecs_to_jiffies(1000)
 
@@ -1831,7 +1850,8 @@ static int at91udc_probe(struct platform_device *pdev)
 
 	for (i = 0; i < NUM_ENDPOINTS; i++) {
 		ep = &udc->ep[i];
-		ep->ep.name = ep_names[i];
+		ep->ep.name = ep_info[i].name;
+		ep->ep.caps = ep_info[i].caps;
 		ep->ep.ops = &at91_ep_ops;
 		ep->udc = udc;
 		ep->int_mask = BIT(i);
-- 
1.9.1

[PATCH v5 10/46] usb: gadget: bcm63xx_udc: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/udc/bcm63xx_udc.c | 29 +++++++++++++++++++++++++----
 1 file changed, 25 insertions(+), 4 deletions(-)

diff --git a/drivers/usb/gadget/udc/bcm63xx_udc.c b/drivers/usb/gadget/udc/bcm63xx_udc.c
index 9db968b..8cbb003 100644
--- a/drivers/usb/gadget/udc/bcm63xx_udc.c
+++ b/drivers/usb/gadget/udc/bcm63xx_udc.c
@@ -44,9 +44,29 @@
 #define DRV_MODULE_NAME		"bcm63xx_udc"
 
 static const char bcm63xx_ep0name[] = "ep0";
-static const char *const bcm63xx_ep_name[] = {
-	bcm63xx_ep0name,
-	"ep1in-bulk", "ep2out-bulk", "ep3in-int", "ep4out-int",
+
+static const struct {
+	const char *name;
+	const struct usb_ep_caps caps;
+} bcm63xx_ep_info[] = {
+#define EP_INFO(_name, _caps) \
+	{ \
+		.name = _name, \
+		.caps = _caps, \
+	}
+
+	EP_INFO(bcm63xx_ep0name,
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_CONTROL, USB_EP_CAPS_DIR_ALL)),
+	EP_INFO("ep1in-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep2out-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep3in-int",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_INT, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep4out-int",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_INT, USB_EP_CAPS_DIR_OUT)),
+
+#undef EP_INFO
 };
 
 static bool use_fullspeed;
@@ -943,7 +963,8 @@ static int bcm63xx_init_udc_hw(struct bcm63xx_udc *udc)
 	for (i = 0; i < BCM63XX_NUM_EP; i++) {
 		struct bcm63xx_ep *bep = &udc->bep[i];
 
-		bep->ep.name = bcm63xx_ep_name[i];
+		bep->ep.name = bcm63xx_ep_info[i].name;
+		bep->ep.caps = bcm63xx_ep_info[i].caps;
 		bep->ep_num = i;
 		bep->ep.ops = &bcm63xx_udc_ep_ops;
 		list_add_tail(&bep->ep.ep_list, &udc->gadget.ep_list);
-- 
1.9.1

[PATCH v5 10/46] usb: gadget: bcm63xx_udc: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/udc/bcm63xx_udc.c | 29 +++++++++++++++++++++++++----
 1 file changed, 25 insertions(+), 4 deletions(-)

diff --git a/drivers/usb/gadget/udc/bcm63xx_udc.c b/drivers/usb/gadget/udc/bcm63xx_udc.c
index 9db968b..8cbb003 100644
--- a/drivers/usb/gadget/udc/bcm63xx_udc.c
+++ b/drivers/usb/gadget/udc/bcm63xx_udc.c
@@ -44,9 +44,29 @@
 #define DRV_MODULE_NAME		"bcm63xx_udc"
 
 static const char bcm63xx_ep0name[] = "ep0";
-static const char *const bcm63xx_ep_name[] = {
-	bcm63xx_ep0name,
-	"ep1in-bulk", "ep2out-bulk", "ep3in-int", "ep4out-int",
+
+static const struct {
+	const char *name;
+	const struct usb_ep_caps caps;
+} bcm63xx_ep_info[] = {
+#define EP_INFO(_name, _caps) \
+	{ \
+		.name = _name, \
+		.caps = _caps, \
+	}
+
+	EP_INFO(bcm63xx_ep0name,
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_CONTROL, USB_EP_CAPS_DIR_ALL)),
+	EP_INFO("ep1in-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep2out-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep3in-int",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_INT, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep4out-int",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_INT, USB_EP_CAPS_DIR_OUT)),
+
+#undef EP_INFO
 };
 
 static bool use_fullspeed;
@@ -943,7 +963,8 @@ static int bcm63xx_init_udc_hw(struct bcm63xx_udc *udc)
 	for (i = 0; i < BCM63XX_NUM_EP; i++) {
 		struct bcm63xx_ep *bep = &udc->bep[i];
 
-		bep->ep.name = bcm63xx_ep_name[i];
+		bep->ep.name = bcm63xx_ep_info[i].name;
+		bep->ep.caps = bcm63xx_ep_info[i].caps;
 		bep->ep_num = i;
 		bep->ep.ops = &bcm63xx_udc_ep_ops;
 		list_add_tail(&bep->ep.ep_list, &udc->gadget.ep_list);
-- 
1.9.1

[PATCH v5 10/46] usb: gadget: bcm63xx_udc: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/udc/bcm63xx_udc.c | 29 +++++++++++++++++++++++++----
 1 file changed, 25 insertions(+), 4 deletions(-)

diff --git a/drivers/usb/gadget/udc/bcm63xx_udc.c b/drivers/usb/gadget/udc/bcm63xx_udc.c
index 9db968b..8cbb003 100644
--- a/drivers/usb/gadget/udc/bcm63xx_udc.c
+++ b/drivers/usb/gadget/udc/bcm63xx_udc.c
@@ -44,9 +44,29 @@
 #define DRV_MODULE_NAME		"bcm63xx_udc"
 
 static const char bcm63xx_ep0name[] = "ep0";
-static const char *const bcm63xx_ep_name[] = {
-	bcm63xx_ep0name,
-	"ep1in-bulk", "ep2out-bulk", "ep3in-int", "ep4out-int",
+
+static const struct {
+	const char *name;
+	const struct usb_ep_caps caps;
+} bcm63xx_ep_info[] = {
+#define EP_INFO(_name, _caps) \
+	{ \
+		.name = _name, \
+		.caps = _caps, \
+	}
+
+	EP_INFO(bcm63xx_ep0name,
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_CONTROL, USB_EP_CAPS_DIR_ALL)),
+	EP_INFO("ep1in-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep2out-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep3in-int",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_INT, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep4out-int",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_INT, USB_EP_CAPS_DIR_OUT)),
+
+#undef EP_INFO
 };
 
 static bool use_fullspeed;
@@ -943,7 +963,8 @@ static int bcm63xx_init_udc_hw(struct bcm63xx_udc *udc)
 	for (i = 0; i < BCM63XX_NUM_EP; i++) {
 		struct bcm63xx_ep *bep = &udc->bep[i];
 
-		bep->ep.name = bcm63xx_ep_name[i];
+		bep->ep.name = bcm63xx_ep_info[i].name;
+		bep->ep.caps = bcm63xx_ep_info[i].caps;
 		bep->ep_num = i;
 		bep->ep.ops = &bcm63xx_udc_ep_ops;
 		list_add_tail(&bep->ep.ep_list, &udc->gadget.ep_list);
-- 
1.9.1

[PATCH v5 11/46] usb: gadget: bdc: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/udc/bdc/bdc_ep.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/usb/gadget/udc/bdc/bdc_ep.c b/drivers/usb/gadget/udc/bdc/bdc_ep.c
index b04980c..f9a8f57 100644
--- a/drivers/usb/gadget/udc/bdc/bdc_ep.c
+++ b/drivers/usb/gadget/udc/bdc/bdc_ep.c
@@ -1952,12 +1952,18 @@ static int init_ep(struct bdc *bdc, u32 epnum, u32 dir)
 	ep->bdc = bdc;
 	ep->dir = dir;
 
+	if (dir)
+		ep->usb_ep.caps.dir_in = true;
+	else
+		ep->usb_ep.caps.dir_out = true;
+
 	/* ep->ep_num is the index inside bdc_ep */
 	if (epnum == 1) {
 		ep->ep_num = 1;
 		bdc->bdc_ep_array[ep->ep_num] = ep;
 		snprintf(ep->name, sizeof(ep->name), "ep%d", epnum - 1);
 		usb_ep_set_maxpacket_limit(&ep->usb_ep, EP0_MAX_PKT_SIZE);
+		ep->usb_ep.caps.type_control = true;
 		ep->comp_desc = NULL;
 		bdc->gadget.ep0 = &ep->usb_ep;
 	} else {
@@ -1971,6 +1977,9 @@ static int init_ep(struct bdc *bdc, u32 epnum, u32 dir)
 			 dir & 1 ? "in" : "out");
 
 		usb_ep_set_maxpacket_limit(&ep->usb_ep, 1024);
+		ep->usb_ep.caps.type_iso = true;
+		ep->usb_ep.caps.type_bulk = true;
+		ep->usb_ep.caps.type_int = true;
 		ep->usb_ep.max_streams = 0;
 		list_add_tail(&ep->usb_ep.ep_list, &bdc->gadget.ep_list);
 	}
-- 
1.9.1

[PATCH v5 11/46] usb: gadget: bdc: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/udc/bdc/bdc_ep.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/usb/gadget/udc/bdc/bdc_ep.c b/drivers/usb/gadget/udc/bdc/bdc_ep.c
index b04980c..f9a8f57 100644
--- a/drivers/usb/gadget/udc/bdc/bdc_ep.c
+++ b/drivers/usb/gadget/udc/bdc/bdc_ep.c
@@ -1952,12 +1952,18 @@ static int init_ep(struct bdc *bdc, u32 epnum, u32 dir)
 	ep->bdc = bdc;
 	ep->dir = dir;
 
+	if (dir)
+		ep->usb_ep.caps.dir_in = true;
+	else
+		ep->usb_ep.caps.dir_out = true;
+
 	/* ep->ep_num is the index inside bdc_ep */
 	if (epnum == 1) {
 		ep->ep_num = 1;
 		bdc->bdc_ep_array[ep->ep_num] = ep;
 		snprintf(ep->name, sizeof(ep->name), "ep%d", epnum - 1);
 		usb_ep_set_maxpacket_limit(&ep->usb_ep, EP0_MAX_PKT_SIZE);
+		ep->usb_ep.caps.type_control = true;
 		ep->comp_desc = NULL;
 		bdc->gadget.ep0 = &ep->usb_ep;
 	} else {
@@ -1971,6 +1977,9 @@ static int init_ep(struct bdc *bdc, u32 epnum, u32 dir)
 			 dir & 1 ? "in" : "out");
 
 		usb_ep_set_maxpacket_limit(&ep->usb_ep, 1024);
+		ep->usb_ep.caps.type_iso = true;
+		ep->usb_ep.caps.type_bulk = true;
+		ep->usb_ep.caps.type_int = true;
 		ep->usb_ep.max_streams = 0;
 		list_add_tail(&ep->usb_ep.ep_list, &bdc->gadget.ep_list);
 	}
-- 
1.9.1

[PATCH v5 11/46] usb: gadget: bdc: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/udc/bdc/bdc_ep.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/usb/gadget/udc/bdc/bdc_ep.c b/drivers/usb/gadget/udc/bdc/bdc_ep.c
index b04980c..f9a8f57 100644
--- a/drivers/usb/gadget/udc/bdc/bdc_ep.c
+++ b/drivers/usb/gadget/udc/bdc/bdc_ep.c
@@ -1952,12 +1952,18 @@ static int init_ep(struct bdc *bdc, u32 epnum, u32 dir)
 	ep->bdc = bdc;
 	ep->dir = dir;
 
+	if (dir)
+		ep->usb_ep.caps.dir_in = true;
+	else
+		ep->usb_ep.caps.dir_out = true;
+
 	/* ep->ep_num is the index inside bdc_ep */
 	if (epnum == 1) {
 		ep->ep_num = 1;
 		bdc->bdc_ep_array[ep->ep_num] = ep;
 		snprintf(ep->name, sizeof(ep->name), "ep%d", epnum - 1);
 		usb_ep_set_maxpacket_limit(&ep->usb_ep, EP0_MAX_PKT_SIZE);
+		ep->usb_ep.caps.type_control = true;
 		ep->comp_desc = NULL;
 		bdc->gadget.ep0 = &ep->usb_ep;
 	} else {
@@ -1971,6 +1977,9 @@ static int init_ep(struct bdc *bdc, u32 epnum, u32 dir)
 			 dir & 1 ? "in" : "out");
 
 		usb_ep_set_maxpacket_limit(&ep->usb_ep, 1024);
+		ep->usb_ep.caps.type_iso = true;
+		ep->usb_ep.caps.type_bulk = true;
+		ep->usb_ep.caps.type_int = true;
 		ep->usb_ep.max_streams = 0;
 		list_add_tail(&ep->usb_ep.ep_list, &bdc->gadget.ep_list);
 	}
-- 
1.9.1

[PATCH v5 12/46] usb: gadget: dummy-hcd: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/udc/dummy_hcd.c | 95 ++++++++++++++++++++++++++++++++------
 1 file changed, 80 insertions(+), 15 deletions(-)

diff --git a/drivers/usb/gadget/udc/dummy_hcd.c b/drivers/usb/gadget/udc/dummy_hcd.c
index 181112c..1379ad4 100644
--- a/drivers/usb/gadget/udc/dummy_hcd.c
+++ b/drivers/usb/gadget/udc/dummy_hcd.c
@@ -127,23 +127,87 @@ static inline struct dummy_request *usb_request_to_dummy_request
 
 static const char ep0name[] = "ep0";
 
-static const char *const ep_name[] = {
-	ep0name,				/* everyone has ep0 */
+static const struct {
+	const char *name;
+	const struct usb_ep_caps caps;
+} ep_info[] = {
+#define EP_INFO(_name, _caps) \
+	{ \
+		.name = _name, \
+		.caps = _caps, \
+	}
 
+	/* everyone has ep0 */
+	EP_INFO(ep0name,
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_CONTROL, USB_EP_CAPS_DIR_ALL)),
 	/* act like a pxa250: fifteen fixed function endpoints */
-	"ep1in-bulk", "ep2out-bulk", "ep3in-iso", "ep4out-iso", "ep5in-int",
-	"ep6in-bulk", "ep7out-bulk", "ep8in-iso", "ep9out-iso", "ep10in-int",
-	"ep11in-bulk", "ep12out-bulk", "ep13in-iso", "ep14out-iso",
-		"ep15in-int",
-
+	EP_INFO("ep1in-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep2out-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep3in-iso",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ISO, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep4out-iso",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ISO, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep5in-int",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_INT, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep6in-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep7out-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep8in-iso",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ISO, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep9out-iso",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ISO, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep10in-int",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_INT, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep11in-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep12out-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep13in-iso",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ISO, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep14out-iso",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ISO, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep15in-int",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_INT, USB_EP_CAPS_DIR_IN)),
 	/* or like sa1100: two fixed function endpoints */
-	"ep1out-bulk", "ep2in-bulk",
-
+	EP_INFO("ep1out-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep2in-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_IN)),
 	/* and now some generic EPs so we have enough in multi config */
-	"ep3out", "ep4in", "ep5out", "ep6out", "ep7in", "ep8out", "ep9in",
-	"ep10out", "ep11out", "ep12in", "ep13out", "ep14in", "ep15out",
+	EP_INFO("ep3out",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep4in",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep5out",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep6out",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep7in",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep8out",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep9in",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep10out",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep11out",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep12in",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep13out",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep14in",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep15out",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_OUT)),
+
+#undef EP_INFO
 };
-#define DUMMY_ENDPOINTS	ARRAY_SIZE(ep_name)
+
+#define DUMMY_ENDPOINTS	ARRAY_SIZE(ep_info)
 
 /*-------------------------------------------------------------------------*/
 
@@ -938,9 +1002,10 @@ static void init_dummy_udc_hw(struct dummy *dum)
 	for (i = 0; i < DUMMY_ENDPOINTS; i++) {
 		struct dummy_ep	*ep = &dum->ep[i];
 
-		if (!ep_name[i])
+		if (!ep_info[i].name)
 			break;
-		ep->ep.name = ep_name[i];
+		ep->ep.name = ep_info[i].name;
+		ep->ep.caps = ep_info[i].caps;
 		ep->ep.ops = &dummy_ep_ops;
 		list_add_tail(&ep->ep.ep_list, &dum->gadget.ep_list);
 		ep->halted = ep->wedged = ep->already_seen =
@@ -1684,7 +1749,7 @@ static void dummy_timer(unsigned long _dum_hcd)
 	}
 
 	for (i = 0; i < DUMMY_ENDPOINTS; i++) {
-		if (!ep_name[i])
+		if (!ep_info[i].name)
 			break;
 		dum->ep[i].already_seen = 0;
 	}
-- 
1.9.1

[PATCH v5 12/46] usb: gadget: dummy-hcd: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/udc/dummy_hcd.c | 95 ++++++++++++++++++++++++++++++++------
 1 file changed, 80 insertions(+), 15 deletions(-)

diff --git a/drivers/usb/gadget/udc/dummy_hcd.c b/drivers/usb/gadget/udc/dummy_hcd.c
index 181112c..1379ad4 100644
--- a/drivers/usb/gadget/udc/dummy_hcd.c
+++ b/drivers/usb/gadget/udc/dummy_hcd.c
@@ -127,23 +127,87 @@ static inline struct dummy_request *usb_request_to_dummy_request
 
 static const char ep0name[] = "ep0";
 
-static const char *const ep_name[] = {
-	ep0name,				/* everyone has ep0 */
+static const struct {
+	const char *name;
+	const struct usb_ep_caps caps;
+} ep_info[] = {
+#define EP_INFO(_name, _caps) \
+	{ \
+		.name = _name, \
+		.caps = _caps, \
+	}
 
+	/* everyone has ep0 */
+	EP_INFO(ep0name,
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_CONTROL, USB_EP_CAPS_DIR_ALL)),
 	/* act like a pxa250: fifteen fixed function endpoints */
-	"ep1in-bulk", "ep2out-bulk", "ep3in-iso", "ep4out-iso", "ep5in-int",
-	"ep6in-bulk", "ep7out-bulk", "ep8in-iso", "ep9out-iso", "ep10in-int",
-	"ep11in-bulk", "ep12out-bulk", "ep13in-iso", "ep14out-iso",
-		"ep15in-int",
-
+	EP_INFO("ep1in-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep2out-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep3in-iso",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ISO, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep4out-iso",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ISO, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep5in-int",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_INT, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep6in-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep7out-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep8in-iso",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ISO, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep9out-iso",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ISO, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep10in-int",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_INT, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep11in-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep12out-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep13in-iso",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ISO, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep14out-iso",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ISO, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep15in-int",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_INT, USB_EP_CAPS_DIR_IN)),
 	/* or like sa1100: two fixed function endpoints */
-	"ep1out-bulk", "ep2in-bulk",
-
+	EP_INFO("ep1out-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep2in-bulk",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK, USB_EP_CAPS_DIR_IN)),
 	/* and now some generic EPs so we have enough in multi config */
-	"ep3out", "ep4in", "ep5out", "ep6out", "ep7in", "ep8out", "ep9in",
-	"ep10out", "ep11out", "ep12in", "ep13out", "ep14in", "ep15out",
+	EP_INFO("ep3out",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep4in",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep5out",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep6out",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep7in",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep8out",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep9in",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep10out",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep11out",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep12in",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep13out",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep14in",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep15out",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_OUT)),
+
+#undef EP_INFO
 };
-#define DUMMY_ENDPOINTS	ARRAY_SIZE(ep_name)
+
+#define DUMMY_ENDPOINTS	ARRAY_SIZE(ep_info)
 
 /*-------------------------------------------------------------------------*/
 
@@ -938,9 +1002,10 @@ static void init_dummy_udc_hw(struct dummy *dum)
 	for (i = 0; i < DUMMY_ENDPOINTS; i++) {
 		struct dummy_ep	*ep = &dum->ep[i];
 
-		if (!ep_name[i])
+		if (!ep_info[i].name)
 			break;
-		ep->ep.name = ep_name[i];
+		ep->ep.name = ep_info[i].name;
+		ep->ep.caps = ep_info[i].caps;
 		ep->ep.ops = &dummy_ep_ops;
 		list_add_tail(&ep->ep.ep_list, &dum->gadget.ep_list);
 		ep->halted = ep->wedged = ep->already_seen =
@@ -1684,7 +1749,7 @@ static void dummy_timer(unsigned long _dum_hcd)
 	}
 
 	for (i = 0; i < DUMMY_ENDPOINTS; i++) {
-		if (!ep_name[i])
+		if (!ep_info[i].name)
 			break;
 		dum->ep[i].already_seen = 0;
 	}
-- 
1.9.1

[PATCH v5 13/46] usb: gadget: fotg210-udc: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/udc/fotg210-udc.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/usb/gadget/udc/fotg210-udc.c b/drivers/usb/gadget/udc/fotg210-udc.c
index a99ed6d..6ba122c 100644
--- a/drivers/usb/gadget/udc/fotg210-udc.c
+++ b/drivers/usb/gadget/udc/fotg210-udc.c
@@ -1143,6 +1143,17 @@ static int fotg210_udc_probe(struct platform_device *pdev)
 		ep->ep.name = fotg210_ep_name[i];
 		ep->ep.ops = &fotg210_ep_ops;
 		usb_ep_set_maxpacket_limit(&ep->ep, (unsigned short) ~0);
+
+		if (i == 0) {
+			ep->ep.caps.type_control = true;
+		} else {
+			ep->ep.caps.type_iso = true;
+			ep->ep.caps.type_bulk = true;
+			ep->ep.caps.type_int = true;
+		}
+
+		ep->ep.caps.dir_in = true;
+		ep->ep.caps.dir_out = true;
 	}
 	usb_ep_set_maxpacket_limit(&fotg210->ep[0]->ep, 0x40);
 	fotg210->gadget.ep0 = &fotg210->ep[0]->ep;
-- 
1.9.1

[PATCH v5 13/46] usb: gadget: fotg210-udc: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/udc/fotg210-udc.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/usb/gadget/udc/fotg210-udc.c b/drivers/usb/gadget/udc/fotg210-udc.c
index a99ed6d..6ba122c 100644
--- a/drivers/usb/gadget/udc/fotg210-udc.c
+++ b/drivers/usb/gadget/udc/fotg210-udc.c
@@ -1143,6 +1143,17 @@ static int fotg210_udc_probe(struct platform_device *pdev)
 		ep->ep.name = fotg210_ep_name[i];
 		ep->ep.ops = &fotg210_ep_ops;
 		usb_ep_set_maxpacket_limit(&ep->ep, (unsigned short) ~0);
+
+		if (i == 0) {
+			ep->ep.caps.type_control = true;
+		} else {
+			ep->ep.caps.type_iso = true;
+			ep->ep.caps.type_bulk = true;
+			ep->ep.caps.type_int = true;
+		}
+
+		ep->ep.caps.dir_in = true;
+		ep->ep.caps.dir_out = true;
 	}
 	usb_ep_set_maxpacket_limit(&fotg210->ep[0]->ep, 0x40);
 	fotg210->gadget.ep0 = &fotg210->ep[0]->ep;
-- 
1.9.1

[PATCH v5 13/46] usb: gadget: fotg210-udc: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/udc/fotg210-udc.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/usb/gadget/udc/fotg210-udc.c b/drivers/usb/gadget/udc/fotg210-udc.c
index a99ed6d..6ba122c 100644
--- a/drivers/usb/gadget/udc/fotg210-udc.c
+++ b/drivers/usb/gadget/udc/fotg210-udc.c
@@ -1143,6 +1143,17 @@ static int fotg210_udc_probe(struct platform_device *pdev)
 		ep->ep.name = fotg210_ep_name[i];
 		ep->ep.ops = &fotg210_ep_ops;
 		usb_ep_set_maxpacket_limit(&ep->ep, (unsigned short) ~0);
+
+		if (i == 0) {
+			ep->ep.caps.type_control = true;
+		} else {
+			ep->ep.caps.type_iso = true;
+			ep->ep.caps.type_bulk = true;
+			ep->ep.caps.type_int = true;
+		}
+
+		ep->ep.caps.dir_in = true;
+		ep->ep.caps.dir_out = true;
 	}
 	usb_ep_set_maxpacket_limit(&fotg210->ep[0]->ep, 0x40);
 	fotg210->gadget.ep0 = &fotg210->ep[0]->ep;
-- 
1.9.1

[PATCH v5 14/46] usb: gadget: fsl_qe_udc: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/udc/fsl_qe_udc.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/usb/gadget/udc/fsl_qe_udc.c b/drivers/usb/gadget/udc/fsl_qe_udc.c
index e0822f1..5fb6f8b 100644
--- a/drivers/usb/gadget/udc/fsl_qe_udc.c
+++ b/drivers/usb/gadget/udc/fsl_qe_udc.c
@@ -2417,6 +2417,17 @@ static int qe_ep_config(struct qe_udc *udc, unsigned char pipe_num)
 	strcpy(ep->name, ep_name[pipe_num]);
 	ep->ep.name = ep_name[pipe_num];
 
+	if (pipe_num == 0) {
+		ep->ep.caps.type_control = true;
+	} else {
+		ep->ep.caps.type_iso = true;
+		ep->ep.caps.type_bulk = true;
+		ep->ep.caps.type_int = true;
+	}
+
+	ep->ep.caps.dir_in = true;
+	ep->ep.caps.dir_out = true;
+
 	ep->ep.ops = &qe_ep_ops;
 	ep->stopped = 1;
 	usb_ep_set_maxpacket_limit(&ep->ep, (unsigned short) ~0);
-- 
1.9.1

[PATCH v5 14/46] usb: gadget: fsl_qe_udc: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/udc/fsl_qe_udc.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/usb/gadget/udc/fsl_qe_udc.c b/drivers/usb/gadget/udc/fsl_qe_udc.c
index e0822f1..5fb6f8b 100644
--- a/drivers/usb/gadget/udc/fsl_qe_udc.c
+++ b/drivers/usb/gadget/udc/fsl_qe_udc.c
@@ -2417,6 +2417,17 @@ static int qe_ep_config(struct qe_udc *udc, unsigned char pipe_num)
 	strcpy(ep->name, ep_name[pipe_num]);
 	ep->ep.name = ep_name[pipe_num];
 
+	if (pipe_num == 0) {
+		ep->ep.caps.type_control = true;
+	} else {
+		ep->ep.caps.type_iso = true;
+		ep->ep.caps.type_bulk = true;
+		ep->ep.caps.type_int = true;
+	}
+
+	ep->ep.caps.dir_in = true;
+	ep->ep.caps.dir_out = true;
+
 	ep->ep.ops = &qe_ep_ops;
 	ep->stopped = 1;
 	usb_ep_set_maxpacket_limit(&ep->ep, (unsigned short) ~0);
-- 
1.9.1

[PATCH v5 14/46] usb: gadget: fsl_qe_udc: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/udc/fsl_qe_udc.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/usb/gadget/udc/fsl_qe_udc.c b/drivers/usb/gadget/udc/fsl_qe_udc.c
index e0822f1..5fb6f8b 100644
--- a/drivers/usb/gadget/udc/fsl_qe_udc.c
+++ b/drivers/usb/gadget/udc/fsl_qe_udc.c
@@ -2417,6 +2417,17 @@ static int qe_ep_config(struct qe_udc *udc, unsigned char pipe_num)
 	strcpy(ep->name, ep_name[pipe_num]);
 	ep->ep.name = ep_name[pipe_num];
 
+	if (pipe_num == 0) {
+		ep->ep.caps.type_control = true;
+	} else {
+		ep->ep.caps.type_iso = true;
+		ep->ep.caps.type_bulk = true;
+		ep->ep.caps.type_int = true;
+	}
+
+	ep->ep.caps.dir_in = true;
+	ep->ep.caps.dir_out = true;
+
 	ep->ep.ops = &qe_ep_ops;
 	ep->stopped = 1;
 	usb_ep_set_maxpacket_limit(&ep->ep, (unsigned short) ~0);
-- 
1.9.1

[PATCH v5 15/46] usb: gadget: fsl_udc_core: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/udc/fsl_udc_core.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/drivers/usb/gadget/udc/fsl_udc_core.c b/drivers/usb/gadget/udc/fsl_udc_core.c
index c60022b..aab5221 100644
--- a/drivers/usb/gadget/udc/fsl_udc_core.c
+++ b/drivers/usb/gadget/udc/fsl_udc_core.c
@@ -2313,6 +2313,19 @@ static int struct_ep_setup(struct fsl_udc *udc, unsigned char index,
 	ep->ep.ops = &fsl_ep_ops;
 	ep->stopped = 0;
 
+	if (index == 0) {
+		ep->ep.caps.type_control = true;
+	} else {
+		ep->ep.caps.type_iso = true;
+		ep->ep.caps.type_bulk = true;
+		ep->ep.caps.type_int = true;
+	}
+
+	if (index & 1)
+		ep->ep.caps.dir_in = true;
+	else
+		ep->ep.caps.dir_out = true;
+
 	/* for ep0: maxP defined in desc
 	 * for other eps, maxP is set by epautoconfig() called by gadget layer
 	 */
-- 
1.9.1

[PATCH v5 15/46] usb: gadget: fsl_udc_core: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/udc/fsl_udc_core.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/drivers/usb/gadget/udc/fsl_udc_core.c b/drivers/usb/gadget/udc/fsl_udc_core.c
index c60022b..aab5221 100644
--- a/drivers/usb/gadget/udc/fsl_udc_core.c
+++ b/drivers/usb/gadget/udc/fsl_udc_core.c
@@ -2313,6 +2313,19 @@ static int struct_ep_setup(struct fsl_udc *udc, unsigned char index,
 	ep->ep.ops = &fsl_ep_ops;
 	ep->stopped = 0;
 
+	if (index == 0) {
+		ep->ep.caps.type_control = true;
+	} else {
+		ep->ep.caps.type_iso = true;
+		ep->ep.caps.type_bulk = true;
+		ep->ep.caps.type_int = true;
+	}
+
+	if (index & 1)
+		ep->ep.caps.dir_in = true;
+	else
+		ep->ep.caps.dir_out = true;
+
 	/* for ep0: maxP defined in desc
 	 * for other eps, maxP is set by epautoconfig() called by gadget layer
 	 */
-- 
1.9.1

[PATCH v5 15/46] usb: gadget: fsl_udc_core: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/udc/fsl_udc_core.c | 13 +++++++++++++
 1 file changed, 13 insertions(+)

diff --git a/drivers/usb/gadget/udc/fsl_udc_core.c b/drivers/usb/gadget/udc/fsl_udc_core.c
index c60022b..aab5221 100644
--- a/drivers/usb/gadget/udc/fsl_udc_core.c
+++ b/drivers/usb/gadget/udc/fsl_udc_core.c
@@ -2313,6 +2313,19 @@ static int struct_ep_setup(struct fsl_udc *udc, unsigned char index,
 	ep->ep.ops = &fsl_ep_ops;
 	ep->stopped = 0;
 
+	if (index == 0) {
+		ep->ep.caps.type_control = true;
+	} else {
+		ep->ep.caps.type_iso = true;
+		ep->ep.caps.type_bulk = true;
+		ep->ep.caps.type_int = true;
+	}
+
+	if (index & 1)
+		ep->ep.caps.dir_in = true;
+	else
+		ep->ep.caps.dir_out = true;
+
 	/* for ep0: maxP defined in desc
 	 * for other eps, maxP is set by epautoconfig() called by gadget layer
 	 */
-- 
1.9.1

[PATCH v5 16/46] usb: gadget: fusb300_udc: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/udc/fusb300_udc.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/usb/gadget/udc/fusb300_udc.c b/drivers/usb/gadget/udc/fusb300_udc.c
index 3970f45..948845c 100644
--- a/drivers/usb/gadget/udc/fusb300_udc.c
+++ b/drivers/usb/gadget/udc/fusb300_udc.c
@@ -1450,6 +1450,17 @@ static int fusb300_probe(struct platform_device *pdev)
 		ep->ep.name = fusb300_ep_name[i];
 		ep->ep.ops = &fusb300_ep_ops;
 		usb_ep_set_maxpacket_limit(&ep->ep, HS_BULK_MAX_PACKET_SIZE);
+
+		if (i == 0) {
+			ep->ep.caps.type_control = true;
+		} else {
+			ep->ep.caps.type_iso = true;
+			ep->ep.caps.type_bulk = true;
+			ep->ep.caps.type_int = true;
+		}
+
+		ep->ep.caps.dir_in = true;
+		ep->ep.caps.dir_out = true;
 	}
 	usb_ep_set_maxpacket_limit(&fusb300->ep[0]->ep, HS_CTL_MAX_PACKET_SIZE);
 	fusb300->ep[0]->epnum = 0;
-- 
1.9.1

[PATCH v5 16/46] usb: gadget: fusb300_udc: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/udc/fusb300_udc.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/usb/gadget/udc/fusb300_udc.c b/drivers/usb/gadget/udc/fusb300_udc.c
index 3970f45..948845c 100644
--- a/drivers/usb/gadget/udc/fusb300_udc.c
+++ b/drivers/usb/gadget/udc/fusb300_udc.c
@@ -1450,6 +1450,17 @@ static int fusb300_probe(struct platform_device *pdev)
 		ep->ep.name = fusb300_ep_name[i];
 		ep->ep.ops = &fusb300_ep_ops;
 		usb_ep_set_maxpacket_limit(&ep->ep, HS_BULK_MAX_PACKET_SIZE);
+
+		if (i == 0) {
+			ep->ep.caps.type_control = true;
+		} else {
+			ep->ep.caps.type_iso = true;
+			ep->ep.caps.type_bulk = true;
+			ep->ep.caps.type_int = true;
+		}
+
+		ep->ep.caps.dir_in = true;
+		ep->ep.caps.dir_out = true;
 	}
 	usb_ep_set_maxpacket_limit(&fusb300->ep[0]->ep, HS_CTL_MAX_PACKET_SIZE);
 	fusb300->ep[0]->epnum = 0;
-- 
1.9.1

[PATCH v5 17/46] usb: gadget: goku_udc: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/udc/goku_udc.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/usb/gadget/udc/goku_udc.c b/drivers/usb/gadget/udc/goku_udc.c
index 9e8d842..46b8d14 100644
--- a/drivers/usb/gadget/udc/goku_udc.c
+++ b/drivers/usb/gadget/udc/goku_udc.c
@@ -1257,6 +1257,14 @@ static void udc_reinit (struct goku_udc *dev)
 		INIT_LIST_HEAD (&ep->queue);
 
 		ep_reset(NULL, ep);
+
+		if (i == 0)
+			ep->ep.caps.type_control = true;
+		else
+			ep->ep.caps.type_bulk = true;
+
+		ep->ep.caps.dir_in = true;
+		ep->ep.caps.dir_out = true;
 	}
 
 	dev->ep[0].reg_mode = NULL;
-- 
1.9.1

[PATCH v5 17/46] usb: gadget: goku_udc: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/udc/goku_udc.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/usb/gadget/udc/goku_udc.c b/drivers/usb/gadget/udc/goku_udc.c
index 9e8d842..46b8d14 100644
--- a/drivers/usb/gadget/udc/goku_udc.c
+++ b/drivers/usb/gadget/udc/goku_udc.c
@@ -1257,6 +1257,14 @@ static void udc_reinit (struct goku_udc *dev)
 		INIT_LIST_HEAD (&ep->queue);
 
 		ep_reset(NULL, ep);
+
+		if (i == 0)
+			ep->ep.caps.type_control = true;
+		else
+			ep->ep.caps.type_bulk = true;
+
+		ep->ep.caps.dir_in = true;
+		ep->ep.caps.dir_out = true;
 	}
 
 	dev->ep[0].reg_mode = NULL;
-- 
1.9.1

[PATCH v5 17/46] usb: gadget: goku_udc: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/udc/goku_udc.c | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/drivers/usb/gadget/udc/goku_udc.c b/drivers/usb/gadget/udc/goku_udc.c
index 9e8d842..46b8d14 100644
--- a/drivers/usb/gadget/udc/goku_udc.c
+++ b/drivers/usb/gadget/udc/goku_udc.c
@@ -1257,6 +1257,14 @@ static void udc_reinit (struct goku_udc *dev)
 		INIT_LIST_HEAD (&ep->queue);
 
 		ep_reset(NULL, ep);
+
+		if (i == 0)
+			ep->ep.caps.type_control = true;
+		else
+			ep->ep.caps.type_bulk = true;
+
+		ep->ep.caps.dir_in = true;
+		ep->ep.caps.dir_out = true;
 	}
 
 	dev->ep[0].reg_mode = NULL;
-- 
1.9.1

[PATCH v5 18/46] usb: gadget: gr_udc: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/udc/gr_udc.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/usb/gadget/udc/gr_udc.c b/drivers/usb/gadget/udc/gr_udc.c
index c886887..8aa2593 100644
--- a/drivers/usb/gadget/udc/gr_udc.c
+++ b/drivers/usb/gadget/udc/gr_udc.c
@@ -2018,12 +2018,23 @@ static int gr_ep_init(struct gr_udc *dev, int num, int is_in, u32 maxplimit)
 
 		usb_ep_set_maxpacket_limit(&ep->ep, MAX_CTRL_PL_SIZE);
 		ep->bytes_per_buffer = MAX_CTRL_PL_SIZE;
+
+		ep->ep.caps.type_control = true;
 	} else {
 		usb_ep_set_maxpacket_limit(&ep->ep, (u16)maxplimit);
 		list_add_tail(&ep->ep.ep_list, &dev->gadget.ep_list);
+
+		ep->ep.caps.type_iso = true;
+		ep->ep.caps.type_bulk = true;
+		ep->ep.caps.type_int = true;
 	}
 	list_add_tail(&ep->ep_list, &dev->ep_list);
 
+	if (is_in)
+		ep->ep.caps.dir_in = true;
+	else
+		ep->ep.caps.dir_out = true;
+
 	ep->tailbuf = dma_alloc_coherent(dev->dev, ep->ep.maxpacket_limit,
 					 &ep->tailbuf_paddr, GFP_ATOMIC);
 	if (!ep->tailbuf)
-- 
1.9.1

[PATCH v5 18/46] usb: gadget: gr_udc: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/udc/gr_udc.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/usb/gadget/udc/gr_udc.c b/drivers/usb/gadget/udc/gr_udc.c
index c886887..8aa2593 100644
--- a/drivers/usb/gadget/udc/gr_udc.c
+++ b/drivers/usb/gadget/udc/gr_udc.c
@@ -2018,12 +2018,23 @@ static int gr_ep_init(struct gr_udc *dev, int num, int is_in, u32 maxplimit)
 
 		usb_ep_set_maxpacket_limit(&ep->ep, MAX_CTRL_PL_SIZE);
 		ep->bytes_per_buffer = MAX_CTRL_PL_SIZE;
+
+		ep->ep.caps.type_control = true;
 	} else {
 		usb_ep_set_maxpacket_limit(&ep->ep, (u16)maxplimit);
 		list_add_tail(&ep->ep.ep_list, &dev->gadget.ep_list);
+
+		ep->ep.caps.type_iso = true;
+		ep->ep.caps.type_bulk = true;
+		ep->ep.caps.type_int = true;
 	}
 	list_add_tail(&ep->ep_list, &dev->ep_list);
 
+	if (is_in)
+		ep->ep.caps.dir_in = true;
+	else
+		ep->ep.caps.dir_out = true;
+
 	ep->tailbuf = dma_alloc_coherent(dev->dev, ep->ep.maxpacket_limit,
 					 &ep->tailbuf_paddr, GFP_ATOMIC);
 	if (!ep->tailbuf)
-- 
1.9.1

[PATCH v5 18/46] usb: gadget: gr_udc: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/udc/gr_udc.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/usb/gadget/udc/gr_udc.c b/drivers/usb/gadget/udc/gr_udc.c
index c886887..8aa2593 100644
--- a/drivers/usb/gadget/udc/gr_udc.c
+++ b/drivers/usb/gadget/udc/gr_udc.c
@@ -2018,12 +2018,23 @@ static int gr_ep_init(struct gr_udc *dev, int num, int is_in, u32 maxplimit)
 
 		usb_ep_set_maxpacket_limit(&ep->ep, MAX_CTRL_PL_SIZE);
 		ep->bytes_per_buffer = MAX_CTRL_PL_SIZE;
+
+		ep->ep.caps.type_control = true;
 	} else {
 		usb_ep_set_maxpacket_limit(&ep->ep, (u16)maxplimit);
 		list_add_tail(&ep->ep.ep_list, &dev->gadget.ep_list);
+
+		ep->ep.caps.type_iso = true;
+		ep->ep.caps.type_bulk = true;
+		ep->ep.caps.type_int = true;
 	}
 	list_add_tail(&ep->ep_list, &dev->ep_list);
 
+	if (is_in)
+		ep->ep.caps.dir_in = true;
+	else
+		ep->ep.caps.dir_out = true;
+
 	ep->tailbuf = dma_alloc_coherent(dev->dev, ep->ep.maxpacket_limit,
 					 &ep->tailbuf_paddr, GFP_ATOMIC);
 	if (!ep->tailbuf)
-- 
1.9.1

[PATCH v5 19/46] usb: gadget: lpc32xx_udc: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/udc/lpc32xx_udc.c | 32 ++++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)

diff --git a/drivers/usb/gadget/udc/lpc32xx_udc.c b/drivers/usb/gadget/udc/lpc32xx_udc.c
index 3b6a785..00b5006 100644
--- a/drivers/usb/gadget/udc/lpc32xx_udc.c
+++ b/drivers/usb/gadget/udc/lpc32xx_udc.c
@@ -2575,6 +2575,8 @@ static const struct lpc32xx_udc controller_template = {
 		.ep = {
 			.name	= "ep0",
 			.ops	= &lpc32xx_ep_ops,
+			.caps	= USB_EP_CAPS(USB_EP_CAPS_TYPE_CONTROL,
+					USB_EP_CAPS_DIR_ALL),
 		},
 		.maxpacket	= 64,
 		.hwep_num_base	= 0,
@@ -2586,6 +2588,8 @@ static const struct lpc32xx_udc controller_template = {
 		.ep = {
 			.name	= "ep1-int",
 			.ops	= &lpc32xx_ep_ops,
+			.caps	= USB_EP_CAPS(USB_EP_CAPS_TYPE_INT,
+					USB_EP_CAPS_DIR_ALL),
 		},
 		.maxpacket	= 64,
 		.hwep_num_base	= 2,
@@ -2597,6 +2601,8 @@ static const struct lpc32xx_udc controller_template = {
 		.ep = {
 			.name	= "ep2-bulk",
 			.ops	= &lpc32xx_ep_ops,
+			.caps	= USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK,
+					USB_EP_CAPS_DIR_ALL),
 		},
 		.maxpacket	= 64,
 		.hwep_num_base	= 4,
@@ -2608,6 +2614,8 @@ static const struct lpc32xx_udc controller_template = {
 		.ep = {
 			.name	= "ep3-iso",
 			.ops	= &lpc32xx_ep_ops,
+			.caps	= USB_EP_CAPS(USB_EP_CAPS_TYPE_ISO,
+					USB_EP_CAPS_DIR_ALL),
 		},
 		.maxpacket	= 1023,
 		.hwep_num_base	= 6,
@@ -2619,6 +2627,8 @@ static const struct lpc32xx_udc controller_template = {
 		.ep = {
 			.name	= "ep4-int",
 			.ops	= &lpc32xx_ep_ops,
+			.caps	= USB_EP_CAPS(USB_EP_CAPS_TYPE_INT,
+					USB_EP_CAPS_DIR_ALL),
 		},
 		.maxpacket	= 64,
 		.hwep_num_base	= 8,
@@ -2630,6 +2640,8 @@ static const struct lpc32xx_udc controller_template = {
 		.ep = {
 			.name	= "ep5-bulk",
 			.ops	= &lpc32xx_ep_ops,
+			.caps	= USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK,
+					USB_EP_CAPS_DIR_ALL),
 		},
 		.maxpacket	= 64,
 		.hwep_num_base	= 10,
@@ -2641,6 +2653,8 @@ static const struct lpc32xx_udc controller_template = {
 		.ep = {
 			.name	= "ep6-iso",
 			.ops	= &lpc32xx_ep_ops,
+			.caps	= USB_EP_CAPS(USB_EP_CAPS_TYPE_ISO,
+					USB_EP_CAPS_DIR_ALL),
 		},
 		.maxpacket	= 1023,
 		.hwep_num_base	= 12,
@@ -2652,6 +2666,8 @@ static const struct lpc32xx_udc controller_template = {
 		.ep = {
 			.name	= "ep7-int",
 			.ops	= &lpc32xx_ep_ops,
+			.caps	= USB_EP_CAPS(USB_EP_CAPS_TYPE_INT,
+					USB_EP_CAPS_DIR_ALL),
 		},
 		.maxpacket	= 64,
 		.hwep_num_base	= 14,
@@ -2663,6 +2679,8 @@ static const struct lpc32xx_udc controller_template = {
 		.ep = {
 			.name	= "ep8-bulk",
 			.ops	= &lpc32xx_ep_ops,
+			.caps	= USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK,
+					USB_EP_CAPS_DIR_ALL),
 		},
 		.maxpacket	= 64,
 		.hwep_num_base	= 16,
@@ -2674,6 +2692,8 @@ static const struct lpc32xx_udc controller_template = {
 		.ep = {
 			.name	= "ep9-iso",
 			.ops	= &lpc32xx_ep_ops,
+			.caps	= USB_EP_CAPS(USB_EP_CAPS_TYPE_ISO,
+					USB_EP_CAPS_DIR_ALL),
 		},
 		.maxpacket	= 1023,
 		.hwep_num_base	= 18,
@@ -2685,6 +2705,8 @@ static const struct lpc32xx_udc controller_template = {
 		.ep = {
 			.name	= "ep10-int",
 			.ops	= &lpc32xx_ep_ops,
+			.caps	= USB_EP_CAPS(USB_EP_CAPS_TYPE_INT,
+					USB_EP_CAPS_DIR_ALL),
 		},
 		.maxpacket	= 64,
 		.hwep_num_base	= 20,
@@ -2696,6 +2718,8 @@ static const struct lpc32xx_udc controller_template = {
 		.ep = {
 			.name	= "ep11-bulk",
 			.ops	= &lpc32xx_ep_ops,
+			.caps	= USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK,
+					USB_EP_CAPS_DIR_ALL),
 		},
 		.maxpacket	= 64,
 		.hwep_num_base	= 22,
@@ -2707,6 +2731,8 @@ static const struct lpc32xx_udc controller_template = {
 		.ep = {
 			.name	= "ep12-iso",
 			.ops	= &lpc32xx_ep_ops,
+			.caps	= USB_EP_CAPS(USB_EP_CAPS_TYPE_ISO,
+					USB_EP_CAPS_DIR_ALL),
 		},
 		.maxpacket	= 1023,
 		.hwep_num_base	= 24,
@@ -2718,6 +2744,8 @@ static const struct lpc32xx_udc controller_template = {
 		.ep = {
 			.name	= "ep13-int",
 			.ops	= &lpc32xx_ep_ops,
+			.caps	= USB_EP_CAPS(USB_EP_CAPS_TYPE_INT,
+					USB_EP_CAPS_DIR_ALL),
 		},
 		.maxpacket	= 64,
 		.hwep_num_base	= 26,
@@ -2729,6 +2757,8 @@ static const struct lpc32xx_udc controller_template = {
 		.ep = {
 			.name	= "ep14-bulk",
 			.ops	= &lpc32xx_ep_ops,
+			.caps	= USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK,
+					USB_EP_CAPS_DIR_ALL),
 		},
 		.maxpacket	= 64,
 		.hwep_num_base	= 28,
@@ -2740,6 +2770,8 @@ static const struct lpc32xx_udc controller_template = {
 		.ep = {
 			.name	= "ep15-bulk",
 			.ops	= &lpc32xx_ep_ops,
+			.caps	= USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK,
+					USB_EP_CAPS_DIR_ALL),
 		},
 		.maxpacket	= 1023,
 		.hwep_num_base	= 30,
-- 
1.9.1

[PATCH v5 19/46] usb: gadget: lpc32xx_udc: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/udc/lpc32xx_udc.c | 32 ++++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)

diff --git a/drivers/usb/gadget/udc/lpc32xx_udc.c b/drivers/usb/gadget/udc/lpc32xx_udc.c
index 3b6a785..00b5006 100644
--- a/drivers/usb/gadget/udc/lpc32xx_udc.c
+++ b/drivers/usb/gadget/udc/lpc32xx_udc.c
@@ -2575,6 +2575,8 @@ static const struct lpc32xx_udc controller_template = {
 		.ep = {
 			.name	= "ep0",
 			.ops	= &lpc32xx_ep_ops,
+			.caps	= USB_EP_CAPS(USB_EP_CAPS_TYPE_CONTROL,
+					USB_EP_CAPS_DIR_ALL),
 		},
 		.maxpacket	= 64,
 		.hwep_num_base	= 0,
@@ -2586,6 +2588,8 @@ static const struct lpc32xx_udc controller_template = {
 		.ep = {
 			.name	= "ep1-int",
 			.ops	= &lpc32xx_ep_ops,
+			.caps	= USB_EP_CAPS(USB_EP_CAPS_TYPE_INT,
+					USB_EP_CAPS_DIR_ALL),
 		},
 		.maxpacket	= 64,
 		.hwep_num_base	= 2,
@@ -2597,6 +2601,8 @@ static const struct lpc32xx_udc controller_template = {
 		.ep = {
 			.name	= "ep2-bulk",
 			.ops	= &lpc32xx_ep_ops,
+			.caps	= USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK,
+					USB_EP_CAPS_DIR_ALL),
 		},
 		.maxpacket	= 64,
 		.hwep_num_base	= 4,
@@ -2608,6 +2614,8 @@ static const struct lpc32xx_udc controller_template = {
 		.ep = {
 			.name	= "ep3-iso",
 			.ops	= &lpc32xx_ep_ops,
+			.caps	= USB_EP_CAPS(USB_EP_CAPS_TYPE_ISO,
+					USB_EP_CAPS_DIR_ALL),
 		},
 		.maxpacket	= 1023,
 		.hwep_num_base	= 6,
@@ -2619,6 +2627,8 @@ static const struct lpc32xx_udc controller_template = {
 		.ep = {
 			.name	= "ep4-int",
 			.ops	= &lpc32xx_ep_ops,
+			.caps	= USB_EP_CAPS(USB_EP_CAPS_TYPE_INT,
+					USB_EP_CAPS_DIR_ALL),
 		},
 		.maxpacket	= 64,
 		.hwep_num_base	= 8,
@@ -2630,6 +2640,8 @@ static const struct lpc32xx_udc controller_template = {
 		.ep = {
 			.name	= "ep5-bulk",
 			.ops	= &lpc32xx_ep_ops,
+			.caps	= USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK,
+					USB_EP_CAPS_DIR_ALL),
 		},
 		.maxpacket	= 64,
 		.hwep_num_base	= 10,
@@ -2641,6 +2653,8 @@ static const struct lpc32xx_udc controller_template = {
 		.ep = {
 			.name	= "ep6-iso",
 			.ops	= &lpc32xx_ep_ops,
+			.caps	= USB_EP_CAPS(USB_EP_CAPS_TYPE_ISO,
+					USB_EP_CAPS_DIR_ALL),
 		},
 		.maxpacket	= 1023,
 		.hwep_num_base	= 12,
@@ -2652,6 +2666,8 @@ static const struct lpc32xx_udc controller_template = {
 		.ep = {
 			.name	= "ep7-int",
 			.ops	= &lpc32xx_ep_ops,
+			.caps	= USB_EP_CAPS(USB_EP_CAPS_TYPE_INT,
+					USB_EP_CAPS_DIR_ALL),
 		},
 		.maxpacket	= 64,
 		.hwep_num_base	= 14,
@@ -2663,6 +2679,8 @@ static const struct lpc32xx_udc controller_template = {
 		.ep = {
 			.name	= "ep8-bulk",
 			.ops	= &lpc32xx_ep_ops,
+			.caps	= USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK,
+					USB_EP_CAPS_DIR_ALL),
 		},
 		.maxpacket	= 64,
 		.hwep_num_base	= 16,
@@ -2674,6 +2692,8 @@ static const struct lpc32xx_udc controller_template = {
 		.ep = {
 			.name	= "ep9-iso",
 			.ops	= &lpc32xx_ep_ops,
+			.caps	= USB_EP_CAPS(USB_EP_CAPS_TYPE_ISO,
+					USB_EP_CAPS_DIR_ALL),
 		},
 		.maxpacket	= 1023,
 		.hwep_num_base	= 18,
@@ -2685,6 +2705,8 @@ static const struct lpc32xx_udc controller_template = {
 		.ep = {
 			.name	= "ep10-int",
 			.ops	= &lpc32xx_ep_ops,
+			.caps	= USB_EP_CAPS(USB_EP_CAPS_TYPE_INT,
+					USB_EP_CAPS_DIR_ALL),
 		},
 		.maxpacket	= 64,
 		.hwep_num_base	= 20,
@@ -2696,6 +2718,8 @@ static const struct lpc32xx_udc controller_template = {
 		.ep = {
 			.name	= "ep11-bulk",
 			.ops	= &lpc32xx_ep_ops,
+			.caps	= USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK,
+					USB_EP_CAPS_DIR_ALL),
 		},
 		.maxpacket	= 64,
 		.hwep_num_base	= 22,
@@ -2707,6 +2731,8 @@ static const struct lpc32xx_udc controller_template = {
 		.ep = {
 			.name	= "ep12-iso",
 			.ops	= &lpc32xx_ep_ops,
+			.caps	= USB_EP_CAPS(USB_EP_CAPS_TYPE_ISO,
+					USB_EP_CAPS_DIR_ALL),
 		},
 		.maxpacket	= 1023,
 		.hwep_num_base	= 24,
@@ -2718,6 +2744,8 @@ static const struct lpc32xx_udc controller_template = {
 		.ep = {
 			.name	= "ep13-int",
 			.ops	= &lpc32xx_ep_ops,
+			.caps	= USB_EP_CAPS(USB_EP_CAPS_TYPE_INT,
+					USB_EP_CAPS_DIR_ALL),
 		},
 		.maxpacket	= 64,
 		.hwep_num_base	= 26,
@@ -2729,6 +2757,8 @@ static const struct lpc32xx_udc controller_template = {
 		.ep = {
 			.name	= "ep14-bulk",
 			.ops	= &lpc32xx_ep_ops,
+			.caps	= USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK,
+					USB_EP_CAPS_DIR_ALL),
 		},
 		.maxpacket	= 64,
 		.hwep_num_base	= 28,
@@ -2740,6 +2770,8 @@ static const struct lpc32xx_udc controller_template = {
 		.ep = {
 			.name	= "ep15-bulk",
 			.ops	= &lpc32xx_ep_ops,
+			.caps	= USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK,
+					USB_EP_CAPS_DIR_ALL),
 		},
 		.maxpacket	= 1023,
 		.hwep_num_base	= 30,
-- 
1.9.1

[PATCH v5 19/46] usb: gadget: lpc32xx_udc: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/udc/lpc32xx_udc.c | 32 ++++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)

diff --git a/drivers/usb/gadget/udc/lpc32xx_udc.c b/drivers/usb/gadget/udc/lpc32xx_udc.c
index 3b6a785..00b5006 100644
--- a/drivers/usb/gadget/udc/lpc32xx_udc.c
+++ b/drivers/usb/gadget/udc/lpc32xx_udc.c
@@ -2575,6 +2575,8 @@ static const struct lpc32xx_udc controller_template = {
 		.ep = {
 			.name	= "ep0",
 			.ops	= &lpc32xx_ep_ops,
+			.caps	= USB_EP_CAPS(USB_EP_CAPS_TYPE_CONTROL,
+					USB_EP_CAPS_DIR_ALL),
 		},
 		.maxpacket	= 64,
 		.hwep_num_base	= 0,
@@ -2586,6 +2588,8 @@ static const struct lpc32xx_udc controller_template = {
 		.ep = {
 			.name	= "ep1-int",
 			.ops	= &lpc32xx_ep_ops,
+			.caps	= USB_EP_CAPS(USB_EP_CAPS_TYPE_INT,
+					USB_EP_CAPS_DIR_ALL),
 		},
 		.maxpacket	= 64,
 		.hwep_num_base	= 2,
@@ -2597,6 +2601,8 @@ static const struct lpc32xx_udc controller_template = {
 		.ep = {
 			.name	= "ep2-bulk",
 			.ops	= &lpc32xx_ep_ops,
+			.caps	= USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK,
+					USB_EP_CAPS_DIR_ALL),
 		},
 		.maxpacket	= 64,
 		.hwep_num_base	= 4,
@@ -2608,6 +2614,8 @@ static const struct lpc32xx_udc controller_template = {
 		.ep = {
 			.name	= "ep3-iso",
 			.ops	= &lpc32xx_ep_ops,
+			.caps	= USB_EP_CAPS(USB_EP_CAPS_TYPE_ISO,
+					USB_EP_CAPS_DIR_ALL),
 		},
 		.maxpacket	= 1023,
 		.hwep_num_base	= 6,
@@ -2619,6 +2627,8 @@ static const struct lpc32xx_udc controller_template = {
 		.ep = {
 			.name	= "ep4-int",
 			.ops	= &lpc32xx_ep_ops,
+			.caps	= USB_EP_CAPS(USB_EP_CAPS_TYPE_INT,
+					USB_EP_CAPS_DIR_ALL),
 		},
 		.maxpacket	= 64,
 		.hwep_num_base	= 8,
@@ -2630,6 +2640,8 @@ static const struct lpc32xx_udc controller_template = {
 		.ep = {
 			.name	= "ep5-bulk",
 			.ops	= &lpc32xx_ep_ops,
+			.caps	= USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK,
+					USB_EP_CAPS_DIR_ALL),
 		},
 		.maxpacket	= 64,
 		.hwep_num_base	= 10,
@@ -2641,6 +2653,8 @@ static const struct lpc32xx_udc controller_template = {
 		.ep = {
 			.name	= "ep6-iso",
 			.ops	= &lpc32xx_ep_ops,
+			.caps	= USB_EP_CAPS(USB_EP_CAPS_TYPE_ISO,
+					USB_EP_CAPS_DIR_ALL),
 		},
 		.maxpacket	= 1023,
 		.hwep_num_base	= 12,
@@ -2652,6 +2666,8 @@ static const struct lpc32xx_udc controller_template = {
 		.ep = {
 			.name	= "ep7-int",
 			.ops	= &lpc32xx_ep_ops,
+			.caps	= USB_EP_CAPS(USB_EP_CAPS_TYPE_INT,
+					USB_EP_CAPS_DIR_ALL),
 		},
 		.maxpacket	= 64,
 		.hwep_num_base	= 14,
@@ -2663,6 +2679,8 @@ static const struct lpc32xx_udc controller_template = {
 		.ep = {
 			.name	= "ep8-bulk",
 			.ops	= &lpc32xx_ep_ops,
+			.caps	= USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK,
+					USB_EP_CAPS_DIR_ALL),
 		},
 		.maxpacket	= 64,
 		.hwep_num_base	= 16,
@@ -2674,6 +2692,8 @@ static const struct lpc32xx_udc controller_template = {
 		.ep = {
 			.name	= "ep9-iso",
 			.ops	= &lpc32xx_ep_ops,
+			.caps	= USB_EP_CAPS(USB_EP_CAPS_TYPE_ISO,
+					USB_EP_CAPS_DIR_ALL),
 		},
 		.maxpacket	= 1023,
 		.hwep_num_base	= 18,
@@ -2685,6 +2705,8 @@ static const struct lpc32xx_udc controller_template = {
 		.ep = {
 			.name	= "ep10-int",
 			.ops	= &lpc32xx_ep_ops,
+			.caps	= USB_EP_CAPS(USB_EP_CAPS_TYPE_INT,
+					USB_EP_CAPS_DIR_ALL),
 		},
 		.maxpacket	= 64,
 		.hwep_num_base	= 20,
@@ -2696,6 +2718,8 @@ static const struct lpc32xx_udc controller_template = {
 		.ep = {
 			.name	= "ep11-bulk",
 			.ops	= &lpc32xx_ep_ops,
+			.caps	= USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK,
+					USB_EP_CAPS_DIR_ALL),
 		},
 		.maxpacket	= 64,
 		.hwep_num_base	= 22,
@@ -2707,6 +2731,8 @@ static const struct lpc32xx_udc controller_template = {
 		.ep = {
 			.name	= "ep12-iso",
 			.ops	= &lpc32xx_ep_ops,
+			.caps	= USB_EP_CAPS(USB_EP_CAPS_TYPE_ISO,
+					USB_EP_CAPS_DIR_ALL),
 		},
 		.maxpacket	= 1023,
 		.hwep_num_base	= 24,
@@ -2718,6 +2744,8 @@ static const struct lpc32xx_udc controller_template = {
 		.ep = {
 			.name	= "ep13-int",
 			.ops	= &lpc32xx_ep_ops,
+			.caps	= USB_EP_CAPS(USB_EP_CAPS_TYPE_INT,
+					USB_EP_CAPS_DIR_ALL),
 		},
 		.maxpacket	= 64,
 		.hwep_num_base	= 26,
@@ -2729,6 +2757,8 @@ static const struct lpc32xx_udc controller_template = {
 		.ep = {
 			.name	= "ep14-bulk",
 			.ops	= &lpc32xx_ep_ops,
+			.caps	= USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK,
+					USB_EP_CAPS_DIR_ALL),
 		},
 		.maxpacket	= 64,
 		.hwep_num_base	= 28,
@@ -2740,6 +2770,8 @@ static const struct lpc32xx_udc controller_template = {
 		.ep = {
 			.name	= "ep15-bulk",
 			.ops	= &lpc32xx_ep_ops,
+			.caps	= USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK,
+					USB_EP_CAPS_DIR_ALL),
 		},
 		.maxpacket	= 1023,
 		.hwep_num_base	= 30,
-- 
1.9.1

[PATCH v5 20/46] usb: gadget: m66592-udc: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/udc/m66592-udc.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/usb/gadget/udc/m66592-udc.c b/drivers/usb/gadget/udc/m66592-udc.c
index 9704053..b1cfa96 100644
--- a/drivers/usb/gadget/udc/m66592-udc.c
+++ b/drivers/usb/gadget/udc/m66592-udc.c
@@ -1644,6 +1644,17 @@ static int m66592_probe(struct platform_device *pdev)
 		ep->ep.name = m66592_ep_name[i];
 		ep->ep.ops = &m66592_ep_ops;
 		usb_ep_set_maxpacket_limit(&ep->ep, 512);
+
+		if (i == 0) {
+			ep->ep.caps.type_control = true;
+		} else {
+			ep->ep.caps.type_iso = true;
+			ep->ep.caps.type_bulk = true;
+			ep->ep.caps.type_int = true;
+		}
+
+		ep->ep.caps.dir_in = true;
+		ep->ep.caps.dir_out = true;
 	}
 	usb_ep_set_maxpacket_limit(&m66592->ep[0].ep, 64);
 	m66592->ep[0].pipenum = 0;
-- 
1.9.1

[PATCH v5 20/46] usb: gadget: m66592-udc: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/udc/m66592-udc.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/usb/gadget/udc/m66592-udc.c b/drivers/usb/gadget/udc/m66592-udc.c
index 9704053..b1cfa96 100644
--- a/drivers/usb/gadget/udc/m66592-udc.c
+++ b/drivers/usb/gadget/udc/m66592-udc.c
@@ -1644,6 +1644,17 @@ static int m66592_probe(struct platform_device *pdev)
 		ep->ep.name = m66592_ep_name[i];
 		ep->ep.ops = &m66592_ep_ops;
 		usb_ep_set_maxpacket_limit(&ep->ep, 512);
+
+		if (i == 0) {
+			ep->ep.caps.type_control = true;
+		} else {
+			ep->ep.caps.type_iso = true;
+			ep->ep.caps.type_bulk = true;
+			ep->ep.caps.type_int = true;
+		}
+
+		ep->ep.caps.dir_in = true;
+		ep->ep.caps.dir_out = true;
 	}
 	usb_ep_set_maxpacket_limit(&m66592->ep[0].ep, 64);
 	m66592->ep[0].pipenum = 0;
-- 
1.9.1

[PATCH v5 20/46] usb: gadget: m66592-udc: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/udc/m66592-udc.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/usb/gadget/udc/m66592-udc.c b/drivers/usb/gadget/udc/m66592-udc.c
index 9704053..b1cfa96 100644
--- a/drivers/usb/gadget/udc/m66592-udc.c
+++ b/drivers/usb/gadget/udc/m66592-udc.c
@@ -1644,6 +1644,17 @@ static int m66592_probe(struct platform_device *pdev)
 		ep->ep.name = m66592_ep_name[i];
 		ep->ep.ops = &m66592_ep_ops;
 		usb_ep_set_maxpacket_limit(&ep->ep, 512);
+
+		if (i == 0) {
+			ep->ep.caps.type_control = true;
+		} else {
+			ep->ep.caps.type_iso = true;
+			ep->ep.caps.type_bulk = true;
+			ep->ep.caps.type_int = true;
+		}
+
+		ep->ep.caps.dir_in = true;
+		ep->ep.caps.dir_out = true;
 	}
 	usb_ep_set_maxpacket_limit(&m66592->ep[0].ep, 64);
 	m66592->ep[0].pipenum = 0;
-- 
1.9.1

[PATCH v5 21/46] usb: gadget: mv_u3d_core: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/udc/mv_u3d_core.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/usb/gadget/udc/mv_u3d_core.c b/drivers/usb/gadget/udc/mv_u3d_core.c
index ea35a24..4c48969 100644
--- a/drivers/usb/gadget/udc/mv_u3d_core.c
+++ b/drivers/usb/gadget/udc/mv_u3d_core.c
@@ -1324,6 +1324,9 @@ static int mv_u3d_eps_init(struct mv_u3d *u3d)
 	ep->ep.ops = &mv_u3d_ep_ops;
 	ep->wedge = 0;
 	usb_ep_set_maxpacket_limit(&ep->ep, MV_U3D_EP0_MAX_PKT_SIZE);
+	ep->ep.caps.type_control = true;
+	ep->ep.caps.dir_in = true;
+	ep->ep.caps.dir_out = true;
 	ep->ep_num = 0;
 	ep->ep.desc = &mv_u3d_ep0_desc;
 	INIT_LIST_HEAD(&ep->queue);
@@ -1339,14 +1342,20 @@ static int mv_u3d_eps_init(struct mv_u3d *u3d)
 		if (i & 1) {
 			snprintf(name, sizeof(name), "ep%din", i >> 1);
 			ep->direction = MV_U3D_EP_DIR_IN;
+			ep->ep.caps.dir_in = true;
 		} else {
 			snprintf(name, sizeof(name), "ep%dout", i >> 1);
 			ep->direction = MV_U3D_EP_DIR_OUT;
+			ep->ep.caps.dir_out = true;
 		}
 		ep->u3d = u3d;
 		strncpy(ep->name, name, sizeof(ep->name));
 		ep->ep.name = ep->name;
 
+		ep->ep.caps.type_iso = true;
+		ep->ep.caps.type_bulk = true;
+		ep->ep.caps.type_int = true;
+
 		ep->ep.ops = &mv_u3d_ep_ops;
 		usb_ep_set_maxpacket_limit(&ep->ep, (unsigned short) ~0);
 		ep->ep_num = i / 2;
-- 
1.9.1

[PATCH v5 21/46] usb: gadget: mv_u3d_core: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/udc/mv_u3d_core.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/usb/gadget/udc/mv_u3d_core.c b/drivers/usb/gadget/udc/mv_u3d_core.c
index ea35a24..4c48969 100644
--- a/drivers/usb/gadget/udc/mv_u3d_core.c
+++ b/drivers/usb/gadget/udc/mv_u3d_core.c
@@ -1324,6 +1324,9 @@ static int mv_u3d_eps_init(struct mv_u3d *u3d)
 	ep->ep.ops = &mv_u3d_ep_ops;
 	ep->wedge = 0;
 	usb_ep_set_maxpacket_limit(&ep->ep, MV_U3D_EP0_MAX_PKT_SIZE);
+	ep->ep.caps.type_control = true;
+	ep->ep.caps.dir_in = true;
+	ep->ep.caps.dir_out = true;
 	ep->ep_num = 0;
 	ep->ep.desc = &mv_u3d_ep0_desc;
 	INIT_LIST_HEAD(&ep->queue);
@@ -1339,14 +1342,20 @@ static int mv_u3d_eps_init(struct mv_u3d *u3d)
 		if (i & 1) {
 			snprintf(name, sizeof(name), "ep%din", i >> 1);
 			ep->direction = MV_U3D_EP_DIR_IN;
+			ep->ep.caps.dir_in = true;
 		} else {
 			snprintf(name, sizeof(name), "ep%dout", i >> 1);
 			ep->direction = MV_U3D_EP_DIR_OUT;
+			ep->ep.caps.dir_out = true;
 		}
 		ep->u3d = u3d;
 		strncpy(ep->name, name, sizeof(ep->name));
 		ep->ep.name = ep->name;
 
+		ep->ep.caps.type_iso = true;
+		ep->ep.caps.type_bulk = true;
+		ep->ep.caps.type_int = true;
+
 		ep->ep.ops = &mv_u3d_ep_ops;
 		usb_ep_set_maxpacket_limit(&ep->ep, (unsigned short) ~0);
 		ep->ep_num = i / 2;
-- 
1.9.1

[PATCH v5 21/46] usb: gadget: mv_u3d_core: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/udc/mv_u3d_core.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/usb/gadget/udc/mv_u3d_core.c b/drivers/usb/gadget/udc/mv_u3d_core.c
index ea35a24..4c48969 100644
--- a/drivers/usb/gadget/udc/mv_u3d_core.c
+++ b/drivers/usb/gadget/udc/mv_u3d_core.c
@@ -1324,6 +1324,9 @@ static int mv_u3d_eps_init(struct mv_u3d *u3d)
 	ep->ep.ops = &mv_u3d_ep_ops;
 	ep->wedge = 0;
 	usb_ep_set_maxpacket_limit(&ep->ep, MV_U3D_EP0_MAX_PKT_SIZE);
+	ep->ep.caps.type_control = true;
+	ep->ep.caps.dir_in = true;
+	ep->ep.caps.dir_out = true;
 	ep->ep_num = 0;
 	ep->ep.desc = &mv_u3d_ep0_desc;
 	INIT_LIST_HEAD(&ep->queue);
@@ -1339,14 +1342,20 @@ static int mv_u3d_eps_init(struct mv_u3d *u3d)
 		if (i & 1) {
 			snprintf(name, sizeof(name), "ep%din", i >> 1);
 			ep->direction = MV_U3D_EP_DIR_IN;
+			ep->ep.caps.dir_in = true;
 		} else {
 			snprintf(name, sizeof(name), "ep%dout", i >> 1);
 			ep->direction = MV_U3D_EP_DIR_OUT;
+			ep->ep.caps.dir_out = true;
 		}
 		ep->u3d = u3d;
 		strncpy(ep->name, name, sizeof(ep->name));
 		ep->ep.name = ep->name;
 
+		ep->ep.caps.type_iso = true;
+		ep->ep.caps.type_bulk = true;
+		ep->ep.caps.type_int = true;
+
 		ep->ep.ops = &mv_u3d_ep_ops;
 		usb_ep_set_maxpacket_limit(&ep->ep, (unsigned short) ~0);
 		ep->ep_num = i / 2;
-- 
1.9.1

[PATCH v5 22/46] usb: gadget: mv_udc_core: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/udc/mv_udc_core.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/usb/gadget/udc/mv_udc_core.c b/drivers/usb/gadget/udc/mv_udc_core.c
index 5da37c9..339af51 100644
--- a/drivers/usb/gadget/udc/mv_udc_core.c
+++ b/drivers/usb/gadget/udc/mv_udc_core.c
@@ -1257,6 +1257,9 @@ static int eps_init(struct mv_udc *udc)
 	ep->wedge = 0;
 	ep->stopped = 0;
 	usb_ep_set_maxpacket_limit(&ep->ep, EP0_MAX_PKT_SIZE);
+	ep->ep.caps.type_control = true;
+	ep->ep.caps.dir_in = true;
+	ep->ep.caps.dir_out = true;
 	ep->ep_num = 0;
 	ep->ep.desc = &mv_ep0_desc;
 	INIT_LIST_HEAD(&ep->queue);
@@ -1269,14 +1272,20 @@ static int eps_init(struct mv_udc *udc)
 		if (i % 2) {
 			snprintf(name, sizeof(name), "ep%din", i / 2);
 			ep->direction = EP_DIR_IN;
+			ep->ep.caps.dir_in = true;
 		} else {
 			snprintf(name, sizeof(name), "ep%dout", i / 2);
 			ep->direction = EP_DIR_OUT;
+			ep->ep.caps.dir_out = true;
 		}
 		ep->udc = udc;
 		strncpy(ep->name, name, sizeof(ep->name));
 		ep->ep.name = ep->name;
 
+		ep->ep.caps.type_iso = true;
+		ep->ep.caps.type_bulk = true;
+		ep->ep.caps.type_int = true;
+
 		ep->ep.ops = &mv_ep_ops;
 		ep->stopped = 0;
 		usb_ep_set_maxpacket_limit(&ep->ep, (unsigned short) ~0);
-- 
1.9.1

[PATCH v5 22/46] usb: gadget: mv_udc_core: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/udc/mv_udc_core.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/usb/gadget/udc/mv_udc_core.c b/drivers/usb/gadget/udc/mv_udc_core.c
index 5da37c9..339af51 100644
--- a/drivers/usb/gadget/udc/mv_udc_core.c
+++ b/drivers/usb/gadget/udc/mv_udc_core.c
@@ -1257,6 +1257,9 @@ static int eps_init(struct mv_udc *udc)
 	ep->wedge = 0;
 	ep->stopped = 0;
 	usb_ep_set_maxpacket_limit(&ep->ep, EP0_MAX_PKT_SIZE);
+	ep->ep.caps.type_control = true;
+	ep->ep.caps.dir_in = true;
+	ep->ep.caps.dir_out = true;
 	ep->ep_num = 0;
 	ep->ep.desc = &mv_ep0_desc;
 	INIT_LIST_HEAD(&ep->queue);
@@ -1269,14 +1272,20 @@ static int eps_init(struct mv_udc *udc)
 		if (i % 2) {
 			snprintf(name, sizeof(name), "ep%din", i / 2);
 			ep->direction = EP_DIR_IN;
+			ep->ep.caps.dir_in = true;
 		} else {
 			snprintf(name, sizeof(name), "ep%dout", i / 2);
 			ep->direction = EP_DIR_OUT;
+			ep->ep.caps.dir_out = true;
 		}
 		ep->udc = udc;
 		strncpy(ep->name, name, sizeof(ep->name));
 		ep->ep.name = ep->name;
 
+		ep->ep.caps.type_iso = true;
+		ep->ep.caps.type_bulk = true;
+		ep->ep.caps.type_int = true;
+
 		ep->ep.ops = &mv_ep_ops;
 		ep->stopped = 0;
 		usb_ep_set_maxpacket_limit(&ep->ep, (unsigned short) ~0);
-- 
1.9.1

[PATCH v5 22/46] usb: gadget: mv_udc_core: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/udc/mv_udc_core.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/usb/gadget/udc/mv_udc_core.c b/drivers/usb/gadget/udc/mv_udc_core.c
index 5da37c9..339af51 100644
--- a/drivers/usb/gadget/udc/mv_udc_core.c
+++ b/drivers/usb/gadget/udc/mv_udc_core.c
@@ -1257,6 +1257,9 @@ static int eps_init(struct mv_udc *udc)
 	ep->wedge = 0;
 	ep->stopped = 0;
 	usb_ep_set_maxpacket_limit(&ep->ep, EP0_MAX_PKT_SIZE);
+	ep->ep.caps.type_control = true;
+	ep->ep.caps.dir_in = true;
+	ep->ep.caps.dir_out = true;
 	ep->ep_num = 0;
 	ep->ep.desc = &mv_ep0_desc;
 	INIT_LIST_HEAD(&ep->queue);
@@ -1269,14 +1272,20 @@ static int eps_init(struct mv_udc *udc)
 		if (i % 2) {
 			snprintf(name, sizeof(name), "ep%din", i / 2);
 			ep->direction = EP_DIR_IN;
+			ep->ep.caps.dir_in = true;
 		} else {
 			snprintf(name, sizeof(name), "ep%dout", i / 2);
 			ep->direction = EP_DIR_OUT;
+			ep->ep.caps.dir_out = true;
 		}
 		ep->udc = udc;
 		strncpy(ep->name, name, sizeof(ep->name));
 		ep->ep.name = ep->name;
 
+		ep->ep.caps.type_iso = true;
+		ep->ep.caps.type_bulk = true;
+		ep->ep.caps.type_int = true;
+
 		ep->ep.ops = &mv_ep_ops;
 		ep->stopped = 0;
 		usb_ep_set_maxpacket_limit(&ep->ep, (unsigned short) ~0);
-- 
1.9.1

[PATCH v5 23/46] usb: gadget: net2272: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/udc/net2272.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/usb/gadget/udc/net2272.c b/drivers/usb/gadget/udc/net2272.c
index c2ed5da..18f5ebd 100644
--- a/drivers/usb/gadget/udc/net2272.c
+++ b/drivers/usb/gadget/udc/net2272.c
@@ -1404,6 +1404,17 @@ net2272_usb_reinit(struct net2272 *dev)
 		else
 			ep->fifo_size = 64;
 		net2272_ep_reset(ep);
+
+		if (i == 0) {
+			ep->ep.caps.type_control = true;
+		} else {
+			ep->ep.caps.type_iso = true;
+			ep->ep.caps.type_bulk = true;
+			ep->ep.caps.type_int = true;
+		}
+
+		ep->ep.caps.dir_in = true;
+		ep->ep.caps.dir_out = true;
 	}
 	usb_ep_set_maxpacket_limit(&dev->ep[0].ep, 64);
 
-- 
1.9.1

[PATCH v5 23/46] usb: gadget: net2272: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/udc/net2272.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/usb/gadget/udc/net2272.c b/drivers/usb/gadget/udc/net2272.c
index c2ed5da..18f5ebd 100644
--- a/drivers/usb/gadget/udc/net2272.c
+++ b/drivers/usb/gadget/udc/net2272.c
@@ -1404,6 +1404,17 @@ net2272_usb_reinit(struct net2272 *dev)
 		else
 			ep->fifo_size = 64;
 		net2272_ep_reset(ep);
+
+		if (i == 0) {
+			ep->ep.caps.type_control = true;
+		} else {
+			ep->ep.caps.type_iso = true;
+			ep->ep.caps.type_bulk = true;
+			ep->ep.caps.type_int = true;
+		}
+
+		ep->ep.caps.dir_in = true;
+		ep->ep.caps.dir_out = true;
 	}
 	usb_ep_set_maxpacket_limit(&dev->ep[0].ep, 64);
 
-- 
1.9.1

[PATCH v5 23/46] usb: gadget: net2272: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/udc/net2272.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/usb/gadget/udc/net2272.c b/drivers/usb/gadget/udc/net2272.c
index c2ed5da..18f5ebd 100644
--- a/drivers/usb/gadget/udc/net2272.c
+++ b/drivers/usb/gadget/udc/net2272.c
@@ -1404,6 +1404,17 @@ net2272_usb_reinit(struct net2272 *dev)
 		else
 			ep->fifo_size = 64;
 		net2272_ep_reset(ep);
+
+		if (i == 0) {
+			ep->ep.caps.type_control = true;
+		} else {
+			ep->ep.caps.type_iso = true;
+			ep->ep.caps.type_bulk = true;
+			ep->ep.caps.type_int = true;
+		}
+
+		ep->ep.caps.dir_in = true;
+		ep->ep.caps.dir_out = true;
 	}
 	usb_ep_set_maxpacket_limit(&dev->ep[0].ep, 64);
 
-- 
1.9.1

[PATCH v5 24/46] usb: gadget: net2280: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/udc/net2280.c | 67 +++++++++++++++++++++++++++++++++-------
 1 file changed, 55 insertions(+), 12 deletions(-)

diff --git a/drivers/usb/gadget/udc/net2280.c b/drivers/usb/gadget/udc/net2280.c
index 2bee912..872ca25 100644
--- a/drivers/usb/gadget/udc/net2280.c
+++ b/drivers/usb/gadget/udc/net2280.c
@@ -74,19 +74,58 @@ static const char driver_desc[] = DRIVER_DESC;
 
 static const u32 ep_bit[9] = { 0, 17, 2, 19, 4, 1, 18, 3, 20 };
 static const char ep0name[] = "ep0";
-static const char *const ep_name[] = {
-	ep0name,
-	"ep-a", "ep-b", "ep-c", "ep-d",
-	"ep-e", "ep-f", "ep-g", "ep-h",
-};
 
-/* Endpoint names for usb3380 advance mode */
-static const char *const ep_name_adv[] = {
-	ep0name,
-	"ep1in", "ep2out", "ep3in", "ep4out",
-	"ep1out", "ep2in", "ep3out", "ep4in",
+#define EP_INFO(_name, _caps) \
+	{ \
+		.name = _name, \
+		.caps = _caps, \
+	}
+
+static const struct {
+	const char *name;
+	const struct usb_ep_caps caps;
+} ep_info_dft[] = { /* Default endpoint configuration */
+	EP_INFO(ep0name,
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_CONTROL, USB_EP_CAPS_DIR_ALL)),
+	EP_INFO("ep-a",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_ALL)),
+	EP_INFO("ep-b",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_ALL)),
+	EP_INFO("ep-c",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_ALL)),
+	EP_INFO("ep-d",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_ALL)),
+	EP_INFO("ep-e",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_ALL)),
+	EP_INFO("ep-f",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_ALL)),
+	EP_INFO("ep-g",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_ALL)),
+	EP_INFO("ep-h",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_ALL)),
+}, ep_info_adv[] = { /* Endpoints for usb3380 advance mode */
+	EP_INFO(ep0name,
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_CONTROL, USB_EP_CAPS_DIR_ALL)),
+	EP_INFO("ep1in",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep2out",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep3in",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep4out",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep1out",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep2in",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep3out",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep4in",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_IN)),
 };
 
+#undef EP_INFO
+
 /* mode 0 == ep-{a,b,c,d} 1K fifo each
  * mode 1 == ep-{a,b} 2K fifo each, ep-{c,d} unavailable
  * mode 2 == ep-a 2K fifo, ep-{b,c} 1K each, ep-d unavailable
@@ -2055,7 +2094,8 @@ static void usb_reinit_228x(struct net2280 *dev)
 	for (tmp = 0; tmp < 7; tmp++) {
 		struct net2280_ep	*ep = &dev->ep[tmp];
 
-		ep->ep.name = ep_name[tmp];
+		ep->ep.name = ep_info_dft[tmp].name;
+		ep->ep.caps = ep_info_dft[tmp].caps;
 		ep->dev = dev;
 		ep->num = tmp;
 
@@ -2095,7 +2135,10 @@ static void usb_reinit_338x(struct net2280 *dev)
 	for (i = 0; i < dev->n_ep; i++) {
 		struct net2280_ep *ep = &dev->ep[i];
 
-		ep->ep.name = dev->enhanced_mode ? ep_name_adv[i] : ep_name[i];
+		ep->ep.name = dev->enhanced_mode ? ep_info_adv[i].name :
+						   ep_info_dft[i].name;
+		ep->ep.caps = dev->enhanced_mode ? ep_info_adv[i].caps :
+						   ep_info_dft[i].caps;
 		ep->dev = dev;
 		ep->num = i;
 
-- 
1.9.1

[PATCH v5 24/46] usb: gadget: net2280: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/udc/net2280.c | 67 +++++++++++++++++++++++++++++++++-------
 1 file changed, 55 insertions(+), 12 deletions(-)

diff --git a/drivers/usb/gadget/udc/net2280.c b/drivers/usb/gadget/udc/net2280.c
index 2bee912..872ca25 100644
--- a/drivers/usb/gadget/udc/net2280.c
+++ b/drivers/usb/gadget/udc/net2280.c
@@ -74,19 +74,58 @@ static const char driver_desc[] = DRIVER_DESC;
 
 static const u32 ep_bit[9] = { 0, 17, 2, 19, 4, 1, 18, 3, 20 };
 static const char ep0name[] = "ep0";
-static const char *const ep_name[] = {
-	ep0name,
-	"ep-a", "ep-b", "ep-c", "ep-d",
-	"ep-e", "ep-f", "ep-g", "ep-h",
-};
 
-/* Endpoint names for usb3380 advance mode */
-static const char *const ep_name_adv[] = {
-	ep0name,
-	"ep1in", "ep2out", "ep3in", "ep4out",
-	"ep1out", "ep2in", "ep3out", "ep4in",
+#define EP_INFO(_name, _caps) \
+	{ \
+		.name = _name, \
+		.caps = _caps, \
+	}
+
+static const struct {
+	const char *name;
+	const struct usb_ep_caps caps;
+} ep_info_dft[] = { /* Default endpoint configuration */
+	EP_INFO(ep0name,
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_CONTROL, USB_EP_CAPS_DIR_ALL)),
+	EP_INFO("ep-a",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_ALL)),
+	EP_INFO("ep-b",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_ALL)),
+	EP_INFO("ep-c",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_ALL)),
+	EP_INFO("ep-d",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_ALL)),
+	EP_INFO("ep-e",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_ALL)),
+	EP_INFO("ep-f",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_ALL)),
+	EP_INFO("ep-g",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_ALL)),
+	EP_INFO("ep-h",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_ALL)),
+}, ep_info_adv[] = { /* Endpoints for usb3380 advance mode */
+	EP_INFO(ep0name,
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_CONTROL, USB_EP_CAPS_DIR_ALL)),
+	EP_INFO("ep1in",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep2out",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep3in",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep4out",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep1out",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep2in",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep3out",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep4in",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_IN)),
 };
 
+#undef EP_INFO
+
 /* mode 0 == ep-{a,b,c,d} 1K fifo each
  * mode 1 == ep-{a,b} 2K fifo each, ep-{c,d} unavailable
  * mode 2 == ep-a 2K fifo, ep-{b,c} 1K each, ep-d unavailable
@@ -2055,7 +2094,8 @@ static void usb_reinit_228x(struct net2280 *dev)
 	for (tmp = 0; tmp < 7; tmp++) {
 		struct net2280_ep	*ep = &dev->ep[tmp];
 
-		ep->ep.name = ep_name[tmp];
+		ep->ep.name = ep_info_dft[tmp].name;
+		ep->ep.caps = ep_info_dft[tmp].caps;
 		ep->dev = dev;
 		ep->num = tmp;
 
@@ -2095,7 +2135,10 @@ static void usb_reinit_338x(struct net2280 *dev)
 	for (i = 0; i < dev->n_ep; i++) {
 		struct net2280_ep *ep = &dev->ep[i];
 
-		ep->ep.name = dev->enhanced_mode ? ep_name_adv[i] : ep_name[i];
+		ep->ep.name = dev->enhanced_mode ? ep_info_adv[i].name :
+						   ep_info_dft[i].name;
+		ep->ep.caps = dev->enhanced_mode ? ep_info_adv[i].caps :
+						   ep_info_dft[i].caps;
 		ep->dev = dev;
 		ep->num = i;
 
-- 
1.9.1

[PATCH v5 24/46] usb: gadget: net2280: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/udc/net2280.c | 67 +++++++++++++++++++++++++++++++++-------
 1 file changed, 55 insertions(+), 12 deletions(-)

diff --git a/drivers/usb/gadget/udc/net2280.c b/drivers/usb/gadget/udc/net2280.c
index 2bee912..872ca25 100644
--- a/drivers/usb/gadget/udc/net2280.c
+++ b/drivers/usb/gadget/udc/net2280.c
@@ -74,19 +74,58 @@ static const char driver_desc[] = DRIVER_DESC;
 
 static const u32 ep_bit[9] = { 0, 17, 2, 19, 4, 1, 18, 3, 20 };
 static const char ep0name[] = "ep0";
-static const char *const ep_name[] = {
-	ep0name,
-	"ep-a", "ep-b", "ep-c", "ep-d",
-	"ep-e", "ep-f", "ep-g", "ep-h",
-};
 
-/* Endpoint names for usb3380 advance mode */
-static const char *const ep_name_adv[] = {
-	ep0name,
-	"ep1in", "ep2out", "ep3in", "ep4out",
-	"ep1out", "ep2in", "ep3out", "ep4in",
+#define EP_INFO(_name, _caps) \
+	{ \
+		.name = _name, \
+		.caps = _caps, \
+	}
+
+static const struct {
+	const char *name;
+	const struct usb_ep_caps caps;
+} ep_info_dft[] = { /* Default endpoint configuration */
+	EP_INFO(ep0name,
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_CONTROL, USB_EP_CAPS_DIR_ALL)),
+	EP_INFO("ep-a",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_ALL)),
+	EP_INFO("ep-b",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_ALL)),
+	EP_INFO("ep-c",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_ALL)),
+	EP_INFO("ep-d",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_ALL)),
+	EP_INFO("ep-e",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_ALL)),
+	EP_INFO("ep-f",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_ALL)),
+	EP_INFO("ep-g",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_ALL)),
+	EP_INFO("ep-h",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_ALL)),
+}, ep_info_adv[] = { /* Endpoints for usb3380 advance mode */
+	EP_INFO(ep0name,
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_CONTROL, USB_EP_CAPS_DIR_ALL)),
+	EP_INFO("ep1in",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep2out",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep3in",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep4out",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep1out",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep2in",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_IN)),
+	EP_INFO("ep3out",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_OUT)),
+	EP_INFO("ep4in",
+		USB_EP_CAPS(USB_EP_CAPS_TYPE_ALL, USB_EP_CAPS_DIR_IN)),
 };
 
+#undef EP_INFO
+
 /* mode 0 == ep-{a,b,c,d} 1K fifo each
  * mode 1 == ep-{a,b} 2K fifo each, ep-{c,d} unavailable
  * mode 2 == ep-a 2K fifo, ep-{b,c} 1K each, ep-d unavailable
@@ -2055,7 +2094,8 @@ static void usb_reinit_228x(struct net2280 *dev)
 	for (tmp = 0; tmp < 7; tmp++) {
 		struct net2280_ep	*ep = &dev->ep[tmp];
 
-		ep->ep.name = ep_name[tmp];
+		ep->ep.name = ep_info_dft[tmp].name;
+		ep->ep.caps = ep_info_dft[tmp].caps;
 		ep->dev = dev;
 		ep->num = tmp;
 
@@ -2095,7 +2135,10 @@ static void usb_reinit_338x(struct net2280 *dev)
 	for (i = 0; i < dev->n_ep; i++) {
 		struct net2280_ep *ep = &dev->ep[i];
 
-		ep->ep.name = dev->enhanced_mode ? ep_name_adv[i] : ep_name[i];
+		ep->ep.name = dev->enhanced_mode ? ep_info_adv[i].name :
+						   ep_info_dft[i].name;
+		ep->ep.caps = dev->enhanced_mode ? ep_info_adv[i].caps :
+						   ep_info_dft[i].caps;
 		ep->dev = dev;
 		ep->num = i;
 
-- 
1.9.1

[PATCH v5 25/46] usb: gadget: omap_udc: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/udc/omap_udc.c | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/drivers/usb/gadget/udc/omap_udc.c b/drivers/usb/gadget/udc/omap_udc.c
index e2fcdb8..9b7d394 100644
--- a/drivers/usb/gadget/udc/omap_udc.c
+++ b/drivers/usb/gadget/udc/omap_udc.c
@@ -2579,6 +2579,28 @@ omap_ep_setup(char *name, u8 addr, u8 type,
 	ep->double_buf = dbuf;
 	ep->udc = udc;
 
+	switch (type) {
+	case USB_ENDPOINT_XFER_CONTROL:
+		ep->ep.caps.type_control = true;
+		ep->ep.caps.dir_in = true;
+		ep->ep.caps.dir_out = true;
+		break;
+	case USB_ENDPOINT_XFER_ISOC:
+		ep->ep.caps.type_iso = true;
+		break;
+	case USB_ENDPOINT_XFER_BULK:
+		ep->ep.caps.type_bulk = true;
+		break;
+	case USB_ENDPOINT_XFER_INT:
+		ep->ep.caps.type_int = true;
+		break;
+	};
+
+	if (addr & USB_DIR_IN)
+		ep->ep.caps.dir_in = true;
+	else
+		ep->ep.caps.dir_out = true;
+
 	ep->ep.name = ep->name;
 	ep->ep.ops = &omap_ep_ops;
 	ep->maxpacket = maxp;
-- 
1.9.1

[PATCH v5 25/46] usb: gadget: omap_udc: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/udc/omap_udc.c | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/drivers/usb/gadget/udc/omap_udc.c b/drivers/usb/gadget/udc/omap_udc.c
index e2fcdb8..9b7d394 100644
--- a/drivers/usb/gadget/udc/omap_udc.c
+++ b/drivers/usb/gadget/udc/omap_udc.c
@@ -2579,6 +2579,28 @@ omap_ep_setup(char *name, u8 addr, u8 type,
 	ep->double_buf = dbuf;
 	ep->udc = udc;
 
+	switch (type) {
+	case USB_ENDPOINT_XFER_CONTROL:
+		ep->ep.caps.type_control = true;
+		ep->ep.caps.dir_in = true;
+		ep->ep.caps.dir_out = true;
+		break;
+	case USB_ENDPOINT_XFER_ISOC:
+		ep->ep.caps.type_iso = true;
+		break;
+	case USB_ENDPOINT_XFER_BULK:
+		ep->ep.caps.type_bulk = true;
+		break;
+	case USB_ENDPOINT_XFER_INT:
+		ep->ep.caps.type_int = true;
+		break;
+	};
+
+	if (addr & USB_DIR_IN)
+		ep->ep.caps.dir_in = true;
+	else
+		ep->ep.caps.dir_out = true;
+
 	ep->ep.name = ep->name;
 	ep->ep.ops = &omap_ep_ops;
 	ep->maxpacket = maxp;
-- 
1.9.1

[PATCH v5 25/46] usb: gadget: omap_udc: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/udc/omap_udc.c | 22 ++++++++++++++++++++++
 1 file changed, 22 insertions(+)

diff --git a/drivers/usb/gadget/udc/omap_udc.c b/drivers/usb/gadget/udc/omap_udc.c
index e2fcdb8..9b7d394 100644
--- a/drivers/usb/gadget/udc/omap_udc.c
+++ b/drivers/usb/gadget/udc/omap_udc.c
@@ -2579,6 +2579,28 @@ omap_ep_setup(char *name, u8 addr, u8 type,
 	ep->double_buf = dbuf;
 	ep->udc = udc;
 
+	switch (type) {
+	case USB_ENDPOINT_XFER_CONTROL:
+		ep->ep.caps.type_control = true;
+		ep->ep.caps.dir_in = true;
+		ep->ep.caps.dir_out = true;
+		break;
+	case USB_ENDPOINT_XFER_ISOC:
+		ep->ep.caps.type_iso = true;
+		break;
+	case USB_ENDPOINT_XFER_BULK:
+		ep->ep.caps.type_bulk = true;
+		break;
+	case USB_ENDPOINT_XFER_INT:
+		ep->ep.caps.type_int = true;
+		break;
+	};
+
+	if (addr & USB_DIR_IN)
+		ep->ep.caps.dir_in = true;
+	else
+		ep->ep.caps.dir_out = true;
+
 	ep->ep.name = ep->name;
 	ep->ep.ops = &omap_ep_ops;
 	ep->maxpacket = maxp;
-- 
1.9.1

[PATCH v5 26/46] usb: gadget: pch_udc: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/udc/pch_udc.c | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/gadget/udc/pch_udc.c b/drivers/usb/gadget/udc/pch_udc.c
index dcf5def..fa9eb3c 100644
--- a/drivers/usb/gadget/udc/pch_udc.c
+++ b/drivers/usb/gadget/udc/pch_udc.c
@@ -2895,11 +2895,21 @@ static void pch_udc_pcd_reinit(struct pch_udc_dev *dev)
 		ep->in = ~i & 1;
 		ep->ep.name = ep_string[i];
 		ep->ep.ops = &pch_udc_ep_ops;
-		if (ep->in)
+		if (ep->in) {
 			ep->offset_addr = ep->num * UDC_EP_REG_SHIFT;
-		else
+			ep->ep.caps.dir_in = true;
+		} else {
 			ep->offset_addr = (UDC_EPINT_OUT_SHIFT + ep->num) *
 					  UDC_EP_REG_SHIFT;
+			ep->ep.caps.dir_out = true;
+		}
+		if (i == UDC_EP0IN_IDX || i == UDC_EP0OUT_IDX) {
+			ep->ep.caps.type_control = true;
+		} else {
+			ep->ep.caps.type_iso = true;
+			ep->ep.caps.type_bulk = true;
+			ep->ep.caps.type_int = true;
+		}
 		/* need to set ep->ep.maxpacket and set Default Configuration?*/
 		usb_ep_set_maxpacket_limit(&ep->ep, UDC_BULK_MAX_PKT_SIZE);
 		list_add_tail(&ep->ep.ep_list, &dev->gadget.ep_list);
-- 
1.9.1

[PATCH v5 26/46] usb: gadget: pch_udc: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/udc/pch_udc.c | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/gadget/udc/pch_udc.c b/drivers/usb/gadget/udc/pch_udc.c
index dcf5def..fa9eb3c 100644
--- a/drivers/usb/gadget/udc/pch_udc.c
+++ b/drivers/usb/gadget/udc/pch_udc.c
@@ -2895,11 +2895,21 @@ static void pch_udc_pcd_reinit(struct pch_udc_dev *dev)
 		ep->in = ~i & 1;
 		ep->ep.name = ep_string[i];
 		ep->ep.ops = &pch_udc_ep_ops;
-		if (ep->in)
+		if (ep->in) {
 			ep->offset_addr = ep->num * UDC_EP_REG_SHIFT;
-		else
+			ep->ep.caps.dir_in = true;
+		} else {
 			ep->offset_addr = (UDC_EPINT_OUT_SHIFT + ep->num) *
 					  UDC_EP_REG_SHIFT;
+			ep->ep.caps.dir_out = true;
+		}
+		if (i == UDC_EP0IN_IDX || i == UDC_EP0OUT_IDX) {
+			ep->ep.caps.type_control = true;
+		} else {
+			ep->ep.caps.type_iso = true;
+			ep->ep.caps.type_bulk = true;
+			ep->ep.caps.type_int = true;
+		}
 		/* need to set ep->ep.maxpacket and set Default Configuration?*/
 		usb_ep_set_maxpacket_limit(&ep->ep, UDC_BULK_MAX_PKT_SIZE);
 		list_add_tail(&ep->ep.ep_list, &dev->gadget.ep_list);
-- 
1.9.1

[PATCH v5 26/46] usb: gadget: pch_udc: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/udc/pch_udc.c | 14 ++++++++++++--
 1 file changed, 12 insertions(+), 2 deletions(-)

diff --git a/drivers/usb/gadget/udc/pch_udc.c b/drivers/usb/gadget/udc/pch_udc.c
index dcf5def..fa9eb3c 100644
--- a/drivers/usb/gadget/udc/pch_udc.c
+++ b/drivers/usb/gadget/udc/pch_udc.c
@@ -2895,11 +2895,21 @@ static void pch_udc_pcd_reinit(struct pch_udc_dev *dev)
 		ep->in = ~i & 1;
 		ep->ep.name = ep_string[i];
 		ep->ep.ops = &pch_udc_ep_ops;
-		if (ep->in)
+		if (ep->in) {
 			ep->offset_addr = ep->num * UDC_EP_REG_SHIFT;
-		else
+			ep->ep.caps.dir_in = true;
+		} else {
 			ep->offset_addr = (UDC_EPINT_OUT_SHIFT + ep->num) *
 					  UDC_EP_REG_SHIFT;
+			ep->ep.caps.dir_out = true;
+		}
+		if (i == UDC_EP0IN_IDX || i == UDC_EP0OUT_IDX) {
+			ep->ep.caps.type_control = true;
+		} else {
+			ep->ep.caps.type_iso = true;
+			ep->ep.caps.type_bulk = true;
+			ep->ep.caps.type_int = true;
+		}
 		/* need to set ep->ep.maxpacket and set Default Configuration?*/
 		usb_ep_set_maxpacket_limit(&ep->ep, UDC_BULK_MAX_PKT_SIZE);
 		list_add_tail(&ep->ep.ep_list, &dev->gadget.ep_list);
-- 
1.9.1

[PATCH v5 27/46] usb: gadget: pxa25x_udc: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/udc/pxa25x_udc.c | 32 ++++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)

diff --git a/drivers/usb/gadget/udc/pxa25x_udc.c b/drivers/usb/gadget/udc/pxa25x_udc.c
index 27f9442..b4d25dc 100644
--- a/drivers/usb/gadget/udc/pxa25x_udc.c
+++ b/drivers/usb/gadget/udc/pxa25x_udc.c
@@ -1822,6 +1822,8 @@ static struct pxa25x_udc memory = {
 			.name		= ep0name,
 			.ops		= &pxa25x_ep_ops,
 			.maxpacket	= EP0_FIFO_SIZE,
+			.caps		= USB_EP_CAPS(USB_EP_CAPS_TYPE_CONTROL,
+						USB_EP_CAPS_DIR_ALL),
 		},
 		.dev		= &memory,
 		.reg_udccs	= &UDCCS0,
@@ -1834,6 +1836,8 @@ static struct pxa25x_udc memory = {
 			.name		= "ep1in-bulk",
 			.ops		= &pxa25x_ep_ops,
 			.maxpacket	= BULK_FIFO_SIZE,
+			.caps		= USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK,
+						USB_EP_CAPS_DIR_IN),
 		},
 		.dev		= &memory,
 		.fifo_size	= BULK_FIFO_SIZE,
@@ -1847,6 +1851,8 @@ static struct pxa25x_udc memory = {
 			.name		= "ep2out-bulk",
 			.ops		= &pxa25x_ep_ops,
 			.maxpacket	= BULK_FIFO_SIZE,
+			.caps		= USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK,
+						USB_EP_CAPS_DIR_OUT),
 		},
 		.dev		= &memory,
 		.fifo_size	= BULK_FIFO_SIZE,
@@ -1862,6 +1868,8 @@ static struct pxa25x_udc memory = {
 			.name		= "ep3in-iso",
 			.ops		= &pxa25x_ep_ops,
 			.maxpacket	= ISO_FIFO_SIZE,
+			.caps		= USB_EP_CAPS(USB_EP_CAPS_TYPE_ISO,
+						USB_EP_CAPS_DIR_IN),
 		},
 		.dev		= &memory,
 		.fifo_size	= ISO_FIFO_SIZE,
@@ -1875,6 +1883,8 @@ static struct pxa25x_udc memory = {
 			.name		= "ep4out-iso",
 			.ops		= &pxa25x_ep_ops,
 			.maxpacket	= ISO_FIFO_SIZE,
+			.caps		= USB_EP_CAPS(USB_EP_CAPS_TYPE_ISO,
+						USB_EP_CAPS_DIR_OUT),
 		},
 		.dev		= &memory,
 		.fifo_size	= ISO_FIFO_SIZE,
@@ -1889,6 +1899,8 @@ static struct pxa25x_udc memory = {
 			.name		= "ep5in-int",
 			.ops		= &pxa25x_ep_ops,
 			.maxpacket	= INT_FIFO_SIZE,
+			.caps		= USB_EP_CAPS(USB_EP_CAPS_TYPE_INT,
+						USB_EP_CAPS_DIR_IN),
 		},
 		.dev		= &memory,
 		.fifo_size	= INT_FIFO_SIZE,
@@ -1904,6 +1916,8 @@ static struct pxa25x_udc memory = {
 			.name		= "ep6in-bulk",
 			.ops		= &pxa25x_ep_ops,
 			.maxpacket	= BULK_FIFO_SIZE,
+			.caps		= USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK,
+						USB_EP_CAPS_DIR_IN),
 		},
 		.dev		= &memory,
 		.fifo_size	= BULK_FIFO_SIZE,
@@ -1917,6 +1931,8 @@ static struct pxa25x_udc memory = {
 			.name		= "ep7out-bulk",
 			.ops		= &pxa25x_ep_ops,
 			.maxpacket	= BULK_FIFO_SIZE,
+			.caps		= USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK,
+						USB_EP_CAPS_DIR_OUT),
 		},
 		.dev		= &memory,
 		.fifo_size	= BULK_FIFO_SIZE,
@@ -1931,6 +1947,8 @@ static struct pxa25x_udc memory = {
 			.name		= "ep8in-iso",
 			.ops		= &pxa25x_ep_ops,
 			.maxpacket	= ISO_FIFO_SIZE,
+			.caps		= USB_EP_CAPS(USB_EP_CAPS_TYPE_ISO,
+						USB_EP_CAPS_DIR_IN),
 		},
 		.dev		= &memory,
 		.fifo_size	= ISO_FIFO_SIZE,
@@ -1944,6 +1962,8 @@ static struct pxa25x_udc memory = {
 			.name		= "ep9out-iso",
 			.ops		= &pxa25x_ep_ops,
 			.maxpacket	= ISO_FIFO_SIZE,
+			.caps		= USB_EP_CAPS(USB_EP_CAPS_TYPE_ISO,
+						USB_EP_CAPS_DIR_OUT),
 		},
 		.dev		= &memory,
 		.fifo_size	= ISO_FIFO_SIZE,
@@ -1958,6 +1978,8 @@ static struct pxa25x_udc memory = {
 			.name		= "ep10in-int",
 			.ops		= &pxa25x_ep_ops,
 			.maxpacket	= INT_FIFO_SIZE,
+			.caps		= USB_EP_CAPS(USB_EP_CAPS_TYPE_INT,
+						USB_EP_CAPS_DIR_IN),
 		},
 		.dev		= &memory,
 		.fifo_size	= INT_FIFO_SIZE,
@@ -1973,6 +1995,8 @@ static struct pxa25x_udc memory = {
 			.name		= "ep11in-bulk",
 			.ops		= &pxa25x_ep_ops,
 			.maxpacket	= BULK_FIFO_SIZE,
+			.caps		= USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK,
+						USB_EP_CAPS_DIR_IN),
 		},
 		.dev		= &memory,
 		.fifo_size	= BULK_FIFO_SIZE,
@@ -1986,6 +2010,8 @@ static struct pxa25x_udc memory = {
 			.name		= "ep12out-bulk",
 			.ops		= &pxa25x_ep_ops,
 			.maxpacket	= BULK_FIFO_SIZE,
+			.caps		= USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK,
+						USB_EP_CAPS_DIR_OUT),
 		},
 		.dev		= &memory,
 		.fifo_size	= BULK_FIFO_SIZE,
@@ -2000,6 +2026,8 @@ static struct pxa25x_udc memory = {
 			.name		= "ep13in-iso",
 			.ops		= &pxa25x_ep_ops,
 			.maxpacket	= ISO_FIFO_SIZE,
+			.caps		= USB_EP_CAPS(USB_EP_CAPS_TYPE_ISO,
+						USB_EP_CAPS_DIR_IN),
 		},
 		.dev		= &memory,
 		.fifo_size	= ISO_FIFO_SIZE,
@@ -2013,6 +2041,8 @@ static struct pxa25x_udc memory = {
 			.name		= "ep14out-iso",
 			.ops		= &pxa25x_ep_ops,
 			.maxpacket	= ISO_FIFO_SIZE,
+			.caps		= USB_EP_CAPS(USB_EP_CAPS_TYPE_ISO,
+						USB_EP_CAPS_DIR_OUT),
 		},
 		.dev		= &memory,
 		.fifo_size	= ISO_FIFO_SIZE,
@@ -2027,6 +2057,8 @@ static struct pxa25x_udc memory = {
 			.name		= "ep15in-int",
 			.ops		= &pxa25x_ep_ops,
 			.maxpacket	= INT_FIFO_SIZE,
+			.caps		= USB_EP_CAPS(USB_EP_CAPS_TYPE_INT,
+						USB_EP_CAPS_DIR_IN),
 		},
 		.dev		= &memory,
 		.fifo_size	= INT_FIFO_SIZE,
-- 
1.9.1

[PATCH v5 27/46] usb: gadget: pxa25x_udc: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/udc/pxa25x_udc.c | 32 ++++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)

diff --git a/drivers/usb/gadget/udc/pxa25x_udc.c b/drivers/usb/gadget/udc/pxa25x_udc.c
index 27f9442..b4d25dc 100644
--- a/drivers/usb/gadget/udc/pxa25x_udc.c
+++ b/drivers/usb/gadget/udc/pxa25x_udc.c
@@ -1822,6 +1822,8 @@ static struct pxa25x_udc memory = {
 			.name		= ep0name,
 			.ops		= &pxa25x_ep_ops,
 			.maxpacket	= EP0_FIFO_SIZE,
+			.caps		= USB_EP_CAPS(USB_EP_CAPS_TYPE_CONTROL,
+						USB_EP_CAPS_DIR_ALL),
 		},
 		.dev		= &memory,
 		.reg_udccs	= &UDCCS0,
@@ -1834,6 +1836,8 @@ static struct pxa25x_udc memory = {
 			.name		= "ep1in-bulk",
 			.ops		= &pxa25x_ep_ops,
 			.maxpacket	= BULK_FIFO_SIZE,
+			.caps		= USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK,
+						USB_EP_CAPS_DIR_IN),
 		},
 		.dev		= &memory,
 		.fifo_size	= BULK_FIFO_SIZE,
@@ -1847,6 +1851,8 @@ static struct pxa25x_udc memory = {
 			.name		= "ep2out-bulk",
 			.ops		= &pxa25x_ep_ops,
 			.maxpacket	= BULK_FIFO_SIZE,
+			.caps		= USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK,
+						USB_EP_CAPS_DIR_OUT),
 		},
 		.dev		= &memory,
 		.fifo_size	= BULK_FIFO_SIZE,
@@ -1862,6 +1868,8 @@ static struct pxa25x_udc memory = {
 			.name		= "ep3in-iso",
 			.ops		= &pxa25x_ep_ops,
 			.maxpacket	= ISO_FIFO_SIZE,
+			.caps		= USB_EP_CAPS(USB_EP_CAPS_TYPE_ISO,
+						USB_EP_CAPS_DIR_IN),
 		},
 		.dev		= &memory,
 		.fifo_size	= ISO_FIFO_SIZE,
@@ -1875,6 +1883,8 @@ static struct pxa25x_udc memory = {
 			.name		= "ep4out-iso",
 			.ops		= &pxa25x_ep_ops,
 			.maxpacket	= ISO_FIFO_SIZE,
+			.caps		= USB_EP_CAPS(USB_EP_CAPS_TYPE_ISO,
+						USB_EP_CAPS_DIR_OUT),
 		},
 		.dev		= &memory,
 		.fifo_size	= ISO_FIFO_SIZE,
@@ -1889,6 +1899,8 @@ static struct pxa25x_udc memory = {
 			.name		= "ep5in-int",
 			.ops		= &pxa25x_ep_ops,
 			.maxpacket	= INT_FIFO_SIZE,
+			.caps		= USB_EP_CAPS(USB_EP_CAPS_TYPE_INT,
+						USB_EP_CAPS_DIR_IN),
 		},
 		.dev		= &memory,
 		.fifo_size	= INT_FIFO_SIZE,
@@ -1904,6 +1916,8 @@ static struct pxa25x_udc memory = {
 			.name		= "ep6in-bulk",
 			.ops		= &pxa25x_ep_ops,
 			.maxpacket	= BULK_FIFO_SIZE,
+			.caps		= USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK,
+						USB_EP_CAPS_DIR_IN),
 		},
 		.dev		= &memory,
 		.fifo_size	= BULK_FIFO_SIZE,
@@ -1917,6 +1931,8 @@ static struct pxa25x_udc memory = {
 			.name		= "ep7out-bulk",
 			.ops		= &pxa25x_ep_ops,
 			.maxpacket	= BULK_FIFO_SIZE,
+			.caps		= USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK,
+						USB_EP_CAPS_DIR_OUT),
 		},
 		.dev		= &memory,
 		.fifo_size	= BULK_FIFO_SIZE,
@@ -1931,6 +1947,8 @@ static struct pxa25x_udc memory = {
 			.name		= "ep8in-iso",
 			.ops		= &pxa25x_ep_ops,
 			.maxpacket	= ISO_FIFO_SIZE,
+			.caps		= USB_EP_CAPS(USB_EP_CAPS_TYPE_ISO,
+						USB_EP_CAPS_DIR_IN),
 		},
 		.dev		= &memory,
 		.fifo_size	= ISO_FIFO_SIZE,
@@ -1944,6 +1962,8 @@ static struct pxa25x_udc memory = {
 			.name		= "ep9out-iso",
 			.ops		= &pxa25x_ep_ops,
 			.maxpacket	= ISO_FIFO_SIZE,
+			.caps		= USB_EP_CAPS(USB_EP_CAPS_TYPE_ISO,
+						USB_EP_CAPS_DIR_OUT),
 		},
 		.dev		= &memory,
 		.fifo_size	= ISO_FIFO_SIZE,
@@ -1958,6 +1978,8 @@ static struct pxa25x_udc memory = {
 			.name		= "ep10in-int",
 			.ops		= &pxa25x_ep_ops,
 			.maxpacket	= INT_FIFO_SIZE,
+			.caps		= USB_EP_CAPS(USB_EP_CAPS_TYPE_INT,
+						USB_EP_CAPS_DIR_IN),
 		},
 		.dev		= &memory,
 		.fifo_size	= INT_FIFO_SIZE,
@@ -1973,6 +1995,8 @@ static struct pxa25x_udc memory = {
 			.name		= "ep11in-bulk",
 			.ops		= &pxa25x_ep_ops,
 			.maxpacket	= BULK_FIFO_SIZE,
+			.caps		= USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK,
+						USB_EP_CAPS_DIR_IN),
 		},
 		.dev		= &memory,
 		.fifo_size	= BULK_FIFO_SIZE,
@@ -1986,6 +2010,8 @@ static struct pxa25x_udc memory = {
 			.name		= "ep12out-bulk",
 			.ops		= &pxa25x_ep_ops,
 			.maxpacket	= BULK_FIFO_SIZE,
+			.caps		= USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK,
+						USB_EP_CAPS_DIR_OUT),
 		},
 		.dev		= &memory,
 		.fifo_size	= BULK_FIFO_SIZE,
@@ -2000,6 +2026,8 @@ static struct pxa25x_udc memory = {
 			.name		= "ep13in-iso",
 			.ops		= &pxa25x_ep_ops,
 			.maxpacket	= ISO_FIFO_SIZE,
+			.caps		= USB_EP_CAPS(USB_EP_CAPS_TYPE_ISO,
+						USB_EP_CAPS_DIR_IN),
 		},
 		.dev		= &memory,
 		.fifo_size	= ISO_FIFO_SIZE,
@@ -2013,6 +2041,8 @@ static struct pxa25x_udc memory = {
 			.name		= "ep14out-iso",
 			.ops		= &pxa25x_ep_ops,
 			.maxpacket	= ISO_FIFO_SIZE,
+			.caps		= USB_EP_CAPS(USB_EP_CAPS_TYPE_ISO,
+						USB_EP_CAPS_DIR_OUT),
 		},
 		.dev		= &memory,
 		.fifo_size	= ISO_FIFO_SIZE,
@@ -2027,6 +2057,8 @@ static struct pxa25x_udc memory = {
 			.name		= "ep15in-int",
 			.ops		= &pxa25x_ep_ops,
 			.maxpacket	= INT_FIFO_SIZE,
+			.caps		= USB_EP_CAPS(USB_EP_CAPS_TYPE_INT,
+						USB_EP_CAPS_DIR_IN),
 		},
 		.dev		= &memory,
 		.fifo_size	= INT_FIFO_SIZE,
-- 
1.9.1

[PATCH v5 27/46] usb: gadget: pxa25x_udc: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/udc/pxa25x_udc.c | 32 ++++++++++++++++++++++++++++++++
 1 file changed, 32 insertions(+)

diff --git a/drivers/usb/gadget/udc/pxa25x_udc.c b/drivers/usb/gadget/udc/pxa25x_udc.c
index 27f9442..b4d25dc 100644
--- a/drivers/usb/gadget/udc/pxa25x_udc.c
+++ b/drivers/usb/gadget/udc/pxa25x_udc.c
@@ -1822,6 +1822,8 @@ static struct pxa25x_udc memory = {
 			.name		= ep0name,
 			.ops		= &pxa25x_ep_ops,
 			.maxpacket	= EP0_FIFO_SIZE,
+			.caps		= USB_EP_CAPS(USB_EP_CAPS_TYPE_CONTROL,
+						USB_EP_CAPS_DIR_ALL),
 		},
 		.dev		= &memory,
 		.reg_udccs	= &UDCCS0,
@@ -1834,6 +1836,8 @@ static struct pxa25x_udc memory = {
 			.name		= "ep1in-bulk",
 			.ops		= &pxa25x_ep_ops,
 			.maxpacket	= BULK_FIFO_SIZE,
+			.caps		= USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK,
+						USB_EP_CAPS_DIR_IN),
 		},
 		.dev		= &memory,
 		.fifo_size	= BULK_FIFO_SIZE,
@@ -1847,6 +1851,8 @@ static struct pxa25x_udc memory = {
 			.name		= "ep2out-bulk",
 			.ops		= &pxa25x_ep_ops,
 			.maxpacket	= BULK_FIFO_SIZE,
+			.caps		= USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK,
+						USB_EP_CAPS_DIR_OUT),
 		},
 		.dev		= &memory,
 		.fifo_size	= BULK_FIFO_SIZE,
@@ -1862,6 +1868,8 @@ static struct pxa25x_udc memory = {
 			.name		= "ep3in-iso",
 			.ops		= &pxa25x_ep_ops,
 			.maxpacket	= ISO_FIFO_SIZE,
+			.caps		= USB_EP_CAPS(USB_EP_CAPS_TYPE_ISO,
+						USB_EP_CAPS_DIR_IN),
 		},
 		.dev		= &memory,
 		.fifo_size	= ISO_FIFO_SIZE,
@@ -1875,6 +1883,8 @@ static struct pxa25x_udc memory = {
 			.name		= "ep4out-iso",
 			.ops		= &pxa25x_ep_ops,
 			.maxpacket	= ISO_FIFO_SIZE,
+			.caps		= USB_EP_CAPS(USB_EP_CAPS_TYPE_ISO,
+						USB_EP_CAPS_DIR_OUT),
 		},
 		.dev		= &memory,
 		.fifo_size	= ISO_FIFO_SIZE,
@@ -1889,6 +1899,8 @@ static struct pxa25x_udc memory = {
 			.name		= "ep5in-int",
 			.ops		= &pxa25x_ep_ops,
 			.maxpacket	= INT_FIFO_SIZE,
+			.caps		= USB_EP_CAPS(USB_EP_CAPS_TYPE_INT,
+						USB_EP_CAPS_DIR_IN),
 		},
 		.dev		= &memory,
 		.fifo_size	= INT_FIFO_SIZE,
@@ -1904,6 +1916,8 @@ static struct pxa25x_udc memory = {
 			.name		= "ep6in-bulk",
 			.ops		= &pxa25x_ep_ops,
 			.maxpacket	= BULK_FIFO_SIZE,
+			.caps		= USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK,
+						USB_EP_CAPS_DIR_IN),
 		},
 		.dev		= &memory,
 		.fifo_size	= BULK_FIFO_SIZE,
@@ -1917,6 +1931,8 @@ static struct pxa25x_udc memory = {
 			.name		= "ep7out-bulk",
 			.ops		= &pxa25x_ep_ops,
 			.maxpacket	= BULK_FIFO_SIZE,
+			.caps		= USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK,
+						USB_EP_CAPS_DIR_OUT),
 		},
 		.dev		= &memory,
 		.fifo_size	= BULK_FIFO_SIZE,
@@ -1931,6 +1947,8 @@ static struct pxa25x_udc memory = {
 			.name		= "ep8in-iso",
 			.ops		= &pxa25x_ep_ops,
 			.maxpacket	= ISO_FIFO_SIZE,
+			.caps		= USB_EP_CAPS(USB_EP_CAPS_TYPE_ISO,
+						USB_EP_CAPS_DIR_IN),
 		},
 		.dev		= &memory,
 		.fifo_size	= ISO_FIFO_SIZE,
@@ -1944,6 +1962,8 @@ static struct pxa25x_udc memory = {
 			.name		= "ep9out-iso",
 			.ops		= &pxa25x_ep_ops,
 			.maxpacket	= ISO_FIFO_SIZE,
+			.caps		= USB_EP_CAPS(USB_EP_CAPS_TYPE_ISO,
+						USB_EP_CAPS_DIR_OUT),
 		},
 		.dev		= &memory,
 		.fifo_size	= ISO_FIFO_SIZE,
@@ -1958,6 +1978,8 @@ static struct pxa25x_udc memory = {
 			.name		= "ep10in-int",
 			.ops		= &pxa25x_ep_ops,
 			.maxpacket	= INT_FIFO_SIZE,
+			.caps		= USB_EP_CAPS(USB_EP_CAPS_TYPE_INT,
+						USB_EP_CAPS_DIR_IN),
 		},
 		.dev		= &memory,
 		.fifo_size	= INT_FIFO_SIZE,
@@ -1973,6 +1995,8 @@ static struct pxa25x_udc memory = {
 			.name		= "ep11in-bulk",
 			.ops		= &pxa25x_ep_ops,
 			.maxpacket	= BULK_FIFO_SIZE,
+			.caps		= USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK,
+						USB_EP_CAPS_DIR_IN),
 		},
 		.dev		= &memory,
 		.fifo_size	= BULK_FIFO_SIZE,
@@ -1986,6 +2010,8 @@ static struct pxa25x_udc memory = {
 			.name		= "ep12out-bulk",
 			.ops		= &pxa25x_ep_ops,
 			.maxpacket	= BULK_FIFO_SIZE,
+			.caps		= USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK,
+						USB_EP_CAPS_DIR_OUT),
 		},
 		.dev		= &memory,
 		.fifo_size	= BULK_FIFO_SIZE,
@@ -2000,6 +2026,8 @@ static struct pxa25x_udc memory = {
 			.name		= "ep13in-iso",
 			.ops		= &pxa25x_ep_ops,
 			.maxpacket	= ISO_FIFO_SIZE,
+			.caps		= USB_EP_CAPS(USB_EP_CAPS_TYPE_ISO,
+						USB_EP_CAPS_DIR_IN),
 		},
 		.dev		= &memory,
 		.fifo_size	= ISO_FIFO_SIZE,
@@ -2013,6 +2041,8 @@ static struct pxa25x_udc memory = {
 			.name		= "ep14out-iso",
 			.ops		= &pxa25x_ep_ops,
 			.maxpacket	= ISO_FIFO_SIZE,
+			.caps		= USB_EP_CAPS(USB_EP_CAPS_TYPE_ISO,
+						USB_EP_CAPS_DIR_OUT),
 		},
 		.dev		= &memory,
 		.fifo_size	= ISO_FIFO_SIZE,
@@ -2027,6 +2057,8 @@ static struct pxa25x_udc memory = {
 			.name		= "ep15in-int",
 			.ops		= &pxa25x_ep_ops,
 			.maxpacket	= INT_FIFO_SIZE,
+			.caps		= USB_EP_CAPS(USB_EP_CAPS_TYPE_INT,
+						USB_EP_CAPS_DIR_IN),
 		},
 		.dev		= &memory,
 		.fifo_size	= INT_FIFO_SIZE,
-- 
1.9.1

[PATCH v5 28/46] usb: gadget: pxa27x_udc: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/udc/pxa27x_udc.h | 40 +++++++++++++++++++++++--------------
 1 file changed, 25 insertions(+), 15 deletions(-)

diff --git a/drivers/usb/gadget/udc/pxa27x_udc.h b/drivers/usb/gadget/udc/pxa27x_udc.h
index 11e1423..cea2cb7 100644
--- a/drivers/usb/gadget/udc/pxa27x_udc.h
+++ b/drivers/usb/gadget/udc/pxa27x_udc.h
@@ -234,25 +234,35 @@
 /*
  * Endpoint definition helpers
  */
-#define USB_EP_DEF(addr, bname, dir, type, maxpkt) \
-{ .usb_ep = { .name = bname, .ops = &pxa_ep_ops, .maxpacket = maxpkt, }, \
+#define USB_EP_DEF(addr, bname, dir, type, maxpkt, ctype, cdir) \
+{ .usb_ep = {	.name = bname, .ops = &pxa_ep_ops, .maxpacket = maxpkt, \
+		.caps = USB_EP_CAPS(ctype, cdir), }, \
   .desc = {	.bEndpointAddress = addr | (dir ? USB_DIR_IN : 0), \
-		.bmAttributes = type, \
+		.bmAttributes = USB_ENDPOINT_XFER_ ## type, \
 		.wMaxPacketSize = maxpkt, }, \
   .dev = &memory \
 }
-#define USB_EP_BULK(addr, bname, dir) \
-  USB_EP_DEF(addr, bname, dir, USB_ENDPOINT_XFER_BULK, BULK_FIFO_SIZE)
-#define USB_EP_ISO(addr, bname, dir) \
-  USB_EP_DEF(addr, bname, dir, USB_ENDPOINT_XFER_ISOC, ISO_FIFO_SIZE)
-#define USB_EP_INT(addr, bname, dir) \
-  USB_EP_DEF(addr, bname, dir, USB_ENDPOINT_XFER_INT, INT_FIFO_SIZE)
-#define USB_EP_IN_BULK(n)	USB_EP_BULK(n, "ep" #n "in-bulk", 1)
-#define USB_EP_OUT_BULK(n)	USB_EP_BULK(n, "ep" #n "out-bulk", 0)
-#define USB_EP_IN_ISO(n)	USB_EP_ISO(n,  "ep" #n "in-iso", 1)
-#define USB_EP_OUT_ISO(n)	USB_EP_ISO(n,  "ep" #n "out-iso", 0)
-#define USB_EP_IN_INT(n)	USB_EP_INT(n,  "ep" #n "in-int", 1)
-#define USB_EP_CTRL		USB_EP_DEF(0,  "ep0", 0, 0, EP0_FIFO_SIZE)
+#define USB_EP_BULK(addr, bname, dir, cdir) \
+	USB_EP_DEF(addr, bname, dir, BULK, BULK_FIFO_SIZE, \
+		USB_EP_CAPS_TYPE_BULK, cdir)
+#define USB_EP_ISO(addr, bname, dir, cdir) \
+	USB_EP_DEF(addr, bname, dir, ISOC, ISO_FIFO_SIZE, \
+		USB_EP_CAPS_TYPE_ISO, cdir)
+#define USB_EP_INT(addr, bname, dir, cdir) \
+	USB_EP_DEF(addr, bname, dir, INT, INT_FIFO_SIZE, \
+		USB_EP_CAPS_TYPE_INT, cdir)
+#define USB_EP_IN_BULK(n)	USB_EP_BULK(n, "ep" #n "in-bulk", 1, \
+					USB_EP_CAPS_DIR_IN)
+#define USB_EP_OUT_BULK(n)	USB_EP_BULK(n, "ep" #n "out-bulk", 0, \
+					USB_EP_CAPS_DIR_OUT)
+#define USB_EP_IN_ISO(n)	USB_EP_ISO(n,  "ep" #n "in-iso", 1, \
+					USB_EP_CAPS_DIR_IN)
+#define USB_EP_OUT_ISO(n)	USB_EP_ISO(n,  "ep" #n "out-iso", 0, \
+					USB_EP_CAPS_DIR_OUT)
+#define USB_EP_IN_INT(n)	USB_EP_INT(n,  "ep" #n "in-int", 1, \
+					USB_EP_CAPS_DIR_IN)
+#define USB_EP_CTRL	USB_EP_DEF(0,  "ep0", 0, CONTROL, EP0_FIFO_SIZE, \
+				USB_EP_CAPS_TYPE_CONTROL, USB_EP_CAPS_DIR_ALL)
 
 #define PXA_EP_DEF(_idx, _addr, dir, _type, maxpkt, _config, iface, altset) \
 { \
-- 
1.9.1

[PATCH v5 28/46] usb: gadget: pxa27x_udc: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/udc/pxa27x_udc.h | 40 +++++++++++++++++++++++--------------
 1 file changed, 25 insertions(+), 15 deletions(-)

diff --git a/drivers/usb/gadget/udc/pxa27x_udc.h b/drivers/usb/gadget/udc/pxa27x_udc.h
index 11e1423..cea2cb7 100644
--- a/drivers/usb/gadget/udc/pxa27x_udc.h
+++ b/drivers/usb/gadget/udc/pxa27x_udc.h
@@ -234,25 +234,35 @@
 /*
  * Endpoint definition helpers
  */
-#define USB_EP_DEF(addr, bname, dir, type, maxpkt) \
-{ .usb_ep = { .name = bname, .ops = &pxa_ep_ops, .maxpacket = maxpkt, }, \
+#define USB_EP_DEF(addr, bname, dir, type, maxpkt, ctype, cdir) \
+{ .usb_ep = {	.name = bname, .ops = &pxa_ep_ops, .maxpacket = maxpkt, \
+		.caps = USB_EP_CAPS(ctype, cdir), }, \
   .desc = {	.bEndpointAddress = addr | (dir ? USB_DIR_IN : 0), \
-		.bmAttributes = type, \
+		.bmAttributes = USB_ENDPOINT_XFER_ ## type, \
 		.wMaxPacketSize = maxpkt, }, \
   .dev = &memory \
 }
-#define USB_EP_BULK(addr, bname, dir) \
-  USB_EP_DEF(addr, bname, dir, USB_ENDPOINT_XFER_BULK, BULK_FIFO_SIZE)
-#define USB_EP_ISO(addr, bname, dir) \
-  USB_EP_DEF(addr, bname, dir, USB_ENDPOINT_XFER_ISOC, ISO_FIFO_SIZE)
-#define USB_EP_INT(addr, bname, dir) \
-  USB_EP_DEF(addr, bname, dir, USB_ENDPOINT_XFER_INT, INT_FIFO_SIZE)
-#define USB_EP_IN_BULK(n)	USB_EP_BULK(n, "ep" #n "in-bulk", 1)
-#define USB_EP_OUT_BULK(n)	USB_EP_BULK(n, "ep" #n "out-bulk", 0)
-#define USB_EP_IN_ISO(n)	USB_EP_ISO(n,  "ep" #n "in-iso", 1)
-#define USB_EP_OUT_ISO(n)	USB_EP_ISO(n,  "ep" #n "out-iso", 0)
-#define USB_EP_IN_INT(n)	USB_EP_INT(n,  "ep" #n "in-int", 1)
-#define USB_EP_CTRL		USB_EP_DEF(0,  "ep0", 0, 0, EP0_FIFO_SIZE)
+#define USB_EP_BULK(addr, bname, dir, cdir) \
+	USB_EP_DEF(addr, bname, dir, BULK, BULK_FIFO_SIZE, \
+		USB_EP_CAPS_TYPE_BULK, cdir)
+#define USB_EP_ISO(addr, bname, dir, cdir) \
+	USB_EP_DEF(addr, bname, dir, ISOC, ISO_FIFO_SIZE, \
+		USB_EP_CAPS_TYPE_ISO, cdir)
+#define USB_EP_INT(addr, bname, dir, cdir) \
+	USB_EP_DEF(addr, bname, dir, INT, INT_FIFO_SIZE, \
+		USB_EP_CAPS_TYPE_INT, cdir)
+#define USB_EP_IN_BULK(n)	USB_EP_BULK(n, "ep" #n "in-bulk", 1, \
+					USB_EP_CAPS_DIR_IN)
+#define USB_EP_OUT_BULK(n)	USB_EP_BULK(n, "ep" #n "out-bulk", 0, \
+					USB_EP_CAPS_DIR_OUT)
+#define USB_EP_IN_ISO(n)	USB_EP_ISO(n,  "ep" #n "in-iso", 1, \
+					USB_EP_CAPS_DIR_IN)
+#define USB_EP_OUT_ISO(n)	USB_EP_ISO(n,  "ep" #n "out-iso", 0, \
+					USB_EP_CAPS_DIR_OUT)
+#define USB_EP_IN_INT(n)	USB_EP_INT(n,  "ep" #n "in-int", 1, \
+					USB_EP_CAPS_DIR_IN)
+#define USB_EP_CTRL	USB_EP_DEF(0,  "ep0", 0, CONTROL, EP0_FIFO_SIZE, \
+				USB_EP_CAPS_TYPE_CONTROL, USB_EP_CAPS_DIR_ALL)
 
 #define PXA_EP_DEF(_idx, _addr, dir, _type, maxpkt, _config, iface, altset) \
 { \
-- 
1.9.1

[PATCH v5 28/46] usb: gadget: pxa27x_udc: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/udc/pxa27x_udc.h | 40 +++++++++++++++++++++++--------------
 1 file changed, 25 insertions(+), 15 deletions(-)

diff --git a/drivers/usb/gadget/udc/pxa27x_udc.h b/drivers/usb/gadget/udc/pxa27x_udc.h
index 11e1423..cea2cb7 100644
--- a/drivers/usb/gadget/udc/pxa27x_udc.h
+++ b/drivers/usb/gadget/udc/pxa27x_udc.h
@@ -234,25 +234,35 @@
 /*
  * Endpoint definition helpers
  */
-#define USB_EP_DEF(addr, bname, dir, type, maxpkt) \
-{ .usb_ep = { .name = bname, .ops = &pxa_ep_ops, .maxpacket = maxpkt, }, \
+#define USB_EP_DEF(addr, bname, dir, type, maxpkt, ctype, cdir) \
+{ .usb_ep = {	.name = bname, .ops = &pxa_ep_ops, .maxpacket = maxpkt, \
+		.caps = USB_EP_CAPS(ctype, cdir), }, \
   .desc = {	.bEndpointAddress = addr | (dir ? USB_DIR_IN : 0), \
-		.bmAttributes = type, \
+		.bmAttributes = USB_ENDPOINT_XFER_ ## type, \
 		.wMaxPacketSize = maxpkt, }, \
   .dev = &memory \
 }
-#define USB_EP_BULK(addr, bname, dir) \
-  USB_EP_DEF(addr, bname, dir, USB_ENDPOINT_XFER_BULK, BULK_FIFO_SIZE)
-#define USB_EP_ISO(addr, bname, dir) \
-  USB_EP_DEF(addr, bname, dir, USB_ENDPOINT_XFER_ISOC, ISO_FIFO_SIZE)
-#define USB_EP_INT(addr, bname, dir) \
-  USB_EP_DEF(addr, bname, dir, USB_ENDPOINT_XFER_INT, INT_FIFO_SIZE)
-#define USB_EP_IN_BULK(n)	USB_EP_BULK(n, "ep" #n "in-bulk", 1)
-#define USB_EP_OUT_BULK(n)	USB_EP_BULK(n, "ep" #n "out-bulk", 0)
-#define USB_EP_IN_ISO(n)	USB_EP_ISO(n,  "ep" #n "in-iso", 1)
-#define USB_EP_OUT_ISO(n)	USB_EP_ISO(n,  "ep" #n "out-iso", 0)
-#define USB_EP_IN_INT(n)	USB_EP_INT(n,  "ep" #n "in-int", 1)
-#define USB_EP_CTRL		USB_EP_DEF(0,  "ep0", 0, 0, EP0_FIFO_SIZE)
+#define USB_EP_BULK(addr, bname, dir, cdir) \
+	USB_EP_DEF(addr, bname, dir, BULK, BULK_FIFO_SIZE, \
+		USB_EP_CAPS_TYPE_BULK, cdir)
+#define USB_EP_ISO(addr, bname, dir, cdir) \
+	USB_EP_DEF(addr, bname, dir, ISOC, ISO_FIFO_SIZE, \
+		USB_EP_CAPS_TYPE_ISO, cdir)
+#define USB_EP_INT(addr, bname, dir, cdir) \
+	USB_EP_DEF(addr, bname, dir, INT, INT_FIFO_SIZE, \
+		USB_EP_CAPS_TYPE_INT, cdir)
+#define USB_EP_IN_BULK(n)	USB_EP_BULK(n, "ep" #n "in-bulk", 1, \
+					USB_EP_CAPS_DIR_IN)
+#define USB_EP_OUT_BULK(n)	USB_EP_BULK(n, "ep" #n "out-bulk", 0, \
+					USB_EP_CAPS_DIR_OUT)
+#define USB_EP_IN_ISO(n)	USB_EP_ISO(n,  "ep" #n "in-iso", 1, \
+					USB_EP_CAPS_DIR_IN)
+#define USB_EP_OUT_ISO(n)	USB_EP_ISO(n,  "ep" #n "out-iso", 0, \
+					USB_EP_CAPS_DIR_OUT)
+#define USB_EP_IN_INT(n)	USB_EP_INT(n,  "ep" #n "in-int", 1, \
+					USB_EP_CAPS_DIR_IN)
+#define USB_EP_CTRL	USB_EP_DEF(0,  "ep0", 0, CONTROL, EP0_FIFO_SIZE, \
+				USB_EP_CAPS_TYPE_CONTROL, USB_EP_CAPS_DIR_ALL)
 
 #define PXA_EP_DEF(_idx, _addr, dir, _type, maxpkt, _config, iface, altset) \
 { \
-- 
1.9.1

[PATCH v5 29/46] usb: gadget: r8a66597-udc: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/udc/r8a66597-udc.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/usb/gadget/udc/r8a66597-udc.c b/drivers/usb/gadget/udc/r8a66597-udc.c
index 0293f71..baa0609 100644
--- a/drivers/usb/gadget/udc/r8a66597-udc.c
+++ b/drivers/usb/gadget/udc/r8a66597-udc.c
@@ -1935,6 +1935,16 @@ static int r8a66597_probe(struct platform_device *pdev)
 		ep->ep.name = r8a66597_ep_name[i];
 		ep->ep.ops = &r8a66597_ep_ops;
 		usb_ep_set_maxpacket_limit(&ep->ep, 512);
+
+		if (i == 0) {
+			ep->ep.caps.type_control = true;
+		} else {
+			ep->ep.caps.type_iso = true;
+			ep->ep.caps.type_bulk = true;
+			ep->ep.caps.type_int = true;
+		}
+		ep->ep.caps.dir_in = true;
+		ep->ep.caps.dir_out = true;
 	}
 	usb_ep_set_maxpacket_limit(&r8a66597->ep[0].ep, 64);
 	r8a66597->ep[0].pipenum = 0;
-- 
1.9.1

[PATCH v5 29/46] usb: gadget: r8a66597-udc: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/udc/r8a66597-udc.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/usb/gadget/udc/r8a66597-udc.c b/drivers/usb/gadget/udc/r8a66597-udc.c
index 0293f71..baa0609 100644
--- a/drivers/usb/gadget/udc/r8a66597-udc.c
+++ b/drivers/usb/gadget/udc/r8a66597-udc.c
@@ -1935,6 +1935,16 @@ static int r8a66597_probe(struct platform_device *pdev)
 		ep->ep.name = r8a66597_ep_name[i];
 		ep->ep.ops = &r8a66597_ep_ops;
 		usb_ep_set_maxpacket_limit(&ep->ep, 512);
+
+		if (i == 0) {
+			ep->ep.caps.type_control = true;
+		} else {
+			ep->ep.caps.type_iso = true;
+			ep->ep.caps.type_bulk = true;
+			ep->ep.caps.type_int = true;
+		}
+		ep->ep.caps.dir_in = true;
+		ep->ep.caps.dir_out = true;
 	}
 	usb_ep_set_maxpacket_limit(&r8a66597->ep[0].ep, 64);
 	r8a66597->ep[0].pipenum = 0;
-- 
1.9.1

[PATCH v5 29/46] usb: gadget: r8a66597-udc: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/udc/r8a66597-udc.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/usb/gadget/udc/r8a66597-udc.c b/drivers/usb/gadget/udc/r8a66597-udc.c
index 0293f71..baa0609 100644
--- a/drivers/usb/gadget/udc/r8a66597-udc.c
+++ b/drivers/usb/gadget/udc/r8a66597-udc.c
@@ -1935,6 +1935,16 @@ static int r8a66597_probe(struct platform_device *pdev)
 		ep->ep.name = r8a66597_ep_name[i];
 		ep->ep.ops = &r8a66597_ep_ops;
 		usb_ep_set_maxpacket_limit(&ep->ep, 512);
+
+		if (i == 0) {
+			ep->ep.caps.type_control = true;
+		} else {
+			ep->ep.caps.type_iso = true;
+			ep->ep.caps.type_bulk = true;
+			ep->ep.caps.type_int = true;
+		}
+		ep->ep.caps.dir_in = true;
+		ep->ep.caps.dir_out = true;
 	}
 	usb_ep_set_maxpacket_limit(&r8a66597->ep[0].ep, 64);
 	r8a66597->ep[0].pipenum = 0;
-- 
1.9.1

[PATCH v5 30/46] usb: gadget: s3c-hsudc: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/udc/s3c-hsudc.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/drivers/usb/gadget/udc/s3c-hsudc.c b/drivers/usb/gadget/udc/s3c-hsudc.c
index 85a712a..e9def42 100644
--- a/drivers/usb/gadget/udc/s3c-hsudc.c
+++ b/drivers/usb/gadget/udc/s3c-hsudc.c
@@ -1005,6 +1005,21 @@ static void s3c_hsudc_initep(struct s3c_hsudc *hsudc,
 	hsep->stopped = 0;
 	hsep->wedge = 0;
 
+	if (epnum == 0) {
+		hsep->ep.caps.type_control = true;
+		hsep->ep.caps.dir_in = true;
+		hsep->ep.caps.dir_out = true;
+	} else {
+		hsep->ep.caps.type_iso = true;
+		hsep->ep.caps.type_bulk = true;
+		hsep->ep.caps.type_int = true;
+	}
+
+	if (epnum & 1)
+		hsep->ep.caps.dir_in = true;
+	else
+		hsep->ep.caps.dir_out = true;
+
 	set_index(hsudc, epnum);
 	writel(hsep->ep.maxpacket, hsudc->regs + S3C_MPR);
 }
-- 
1.9.1

[PATCH v5 30/46] usb: gadget: s3c-hsudc: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/udc/s3c-hsudc.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/drivers/usb/gadget/udc/s3c-hsudc.c b/drivers/usb/gadget/udc/s3c-hsudc.c
index 85a712a..e9def42 100644
--- a/drivers/usb/gadget/udc/s3c-hsudc.c
+++ b/drivers/usb/gadget/udc/s3c-hsudc.c
@@ -1005,6 +1005,21 @@ static void s3c_hsudc_initep(struct s3c_hsudc *hsudc,
 	hsep->stopped = 0;
 	hsep->wedge = 0;
 
+	if (epnum == 0) {
+		hsep->ep.caps.type_control = true;
+		hsep->ep.caps.dir_in = true;
+		hsep->ep.caps.dir_out = true;
+	} else {
+		hsep->ep.caps.type_iso = true;
+		hsep->ep.caps.type_bulk = true;
+		hsep->ep.caps.type_int = true;
+	}
+
+	if (epnum & 1)
+		hsep->ep.caps.dir_in = true;
+	else
+		hsep->ep.caps.dir_out = true;
+
 	set_index(hsudc, epnum);
 	writel(hsep->ep.maxpacket, hsudc->regs + S3C_MPR);
 }
-- 
1.9.1

[PATCH v5 30/46] usb: gadget: s3c-hsudc: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/udc/s3c-hsudc.c | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/drivers/usb/gadget/udc/s3c-hsudc.c b/drivers/usb/gadget/udc/s3c-hsudc.c
index 85a712a..e9def42 100644
--- a/drivers/usb/gadget/udc/s3c-hsudc.c
+++ b/drivers/usb/gadget/udc/s3c-hsudc.c
@@ -1005,6 +1005,21 @@ static void s3c_hsudc_initep(struct s3c_hsudc *hsudc,
 	hsep->stopped = 0;
 	hsep->wedge = 0;
 
+	if (epnum == 0) {
+		hsep->ep.caps.type_control = true;
+		hsep->ep.caps.dir_in = true;
+		hsep->ep.caps.dir_out = true;
+	} else {
+		hsep->ep.caps.type_iso = true;
+		hsep->ep.caps.type_bulk = true;
+		hsep->ep.caps.type_int = true;
+	}
+
+	if (epnum & 1)
+		hsep->ep.caps.dir_in = true;
+	else
+		hsep->ep.caps.dir_out = true;
+
 	set_index(hsudc, epnum);
 	writel(hsep->ep.maxpacket, hsudc->regs + S3C_MPR);
 }
-- 
1.9.1

[PATCH v5 31/46] usb: gadget: s3c2410_udc: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/udc/s3c2410_udc.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/usb/gadget/udc/s3c2410_udc.c b/drivers/usb/gadget/udc/s3c2410_udc.c
index 5d9aa81..eb3571e 100644
--- a/drivers/usb/gadget/udc/s3c2410_udc.c
+++ b/drivers/usb/gadget/udc/s3c2410_udc.c
@@ -1691,6 +1691,8 @@ static struct s3c2410_udc memory = {
 			.name		= ep0name,
 			.ops		= &s3c2410_ep_ops,
 			.maxpacket	= EP0_FIFO_SIZE,
+			.caps		= USB_EP_CAPS(USB_EP_CAPS_TYPE_CONTROL,
+						USB_EP_CAPS_DIR_ALL),
 		},
 		.dev		= &memory,
 	},
@@ -1702,6 +1704,8 @@ static struct s3c2410_udc memory = {
 			.name		= "ep1-bulk",
 			.ops		= &s3c2410_ep_ops,
 			.maxpacket	= EP_FIFO_SIZE,
+			.caps		= USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK,
+						USB_EP_CAPS_DIR_ALL),
 		},
 		.dev		= &memory,
 		.fifo_size	= EP_FIFO_SIZE,
@@ -1714,6 +1718,8 @@ static struct s3c2410_udc memory = {
 			.name		= "ep2-bulk",
 			.ops		= &s3c2410_ep_ops,
 			.maxpacket	= EP_FIFO_SIZE,
+			.caps		= USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK,
+						USB_EP_CAPS_DIR_ALL),
 		},
 		.dev		= &memory,
 		.fifo_size	= EP_FIFO_SIZE,
@@ -1726,6 +1732,8 @@ static struct s3c2410_udc memory = {
 			.name		= "ep3-bulk",
 			.ops		= &s3c2410_ep_ops,
 			.maxpacket	= EP_FIFO_SIZE,
+			.caps		= USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK,
+						USB_EP_CAPS_DIR_ALL),
 		},
 		.dev		= &memory,
 		.fifo_size	= EP_FIFO_SIZE,
@@ -1738,6 +1746,8 @@ static struct s3c2410_udc memory = {
 			.name		= "ep4-bulk",
 			.ops		= &s3c2410_ep_ops,
 			.maxpacket	= EP_FIFO_SIZE,
+			.caps		= USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK,
+						USB_EP_CAPS_DIR_ALL),
 		},
 		.dev		= &memory,
 		.fifo_size	= EP_FIFO_SIZE,
-- 
1.9.1

[PATCH v5 31/46] usb: gadget: s3c2410_udc: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/udc/s3c2410_udc.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/usb/gadget/udc/s3c2410_udc.c b/drivers/usb/gadget/udc/s3c2410_udc.c
index 5d9aa81..eb3571e 100644
--- a/drivers/usb/gadget/udc/s3c2410_udc.c
+++ b/drivers/usb/gadget/udc/s3c2410_udc.c
@@ -1691,6 +1691,8 @@ static struct s3c2410_udc memory = {
 			.name		= ep0name,
 			.ops		= &s3c2410_ep_ops,
 			.maxpacket	= EP0_FIFO_SIZE,
+			.caps		= USB_EP_CAPS(USB_EP_CAPS_TYPE_CONTROL,
+						USB_EP_CAPS_DIR_ALL),
 		},
 		.dev		= &memory,
 	},
@@ -1702,6 +1704,8 @@ static struct s3c2410_udc memory = {
 			.name		= "ep1-bulk",
 			.ops		= &s3c2410_ep_ops,
 			.maxpacket	= EP_FIFO_SIZE,
+			.caps		= USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK,
+						USB_EP_CAPS_DIR_ALL),
 		},
 		.dev		= &memory,
 		.fifo_size	= EP_FIFO_SIZE,
@@ -1714,6 +1718,8 @@ static struct s3c2410_udc memory = {
 			.name		= "ep2-bulk",
 			.ops		= &s3c2410_ep_ops,
 			.maxpacket	= EP_FIFO_SIZE,
+			.caps		= USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK,
+						USB_EP_CAPS_DIR_ALL),
 		},
 		.dev		= &memory,
 		.fifo_size	= EP_FIFO_SIZE,
@@ -1726,6 +1732,8 @@ static struct s3c2410_udc memory = {
 			.name		= "ep3-bulk",
 			.ops		= &s3c2410_ep_ops,
 			.maxpacket	= EP_FIFO_SIZE,
+			.caps		= USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK,
+						USB_EP_CAPS_DIR_ALL),
 		},
 		.dev		= &memory,
 		.fifo_size	= EP_FIFO_SIZE,
@@ -1738,6 +1746,8 @@ static struct s3c2410_udc memory = {
 			.name		= "ep4-bulk",
 			.ops		= &s3c2410_ep_ops,
 			.maxpacket	= EP_FIFO_SIZE,
+			.caps		= USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK,
+						USB_EP_CAPS_DIR_ALL),
 		},
 		.dev		= &memory,
 		.fifo_size	= EP_FIFO_SIZE,
-- 
1.9.1

[PATCH v5 31/46] usb: gadget: s3c2410_udc: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/udc/s3c2410_udc.c | 10 ++++++++++
 1 file changed, 10 insertions(+)

diff --git a/drivers/usb/gadget/udc/s3c2410_udc.c b/drivers/usb/gadget/udc/s3c2410_udc.c
index 5d9aa81..eb3571e 100644
--- a/drivers/usb/gadget/udc/s3c2410_udc.c
+++ b/drivers/usb/gadget/udc/s3c2410_udc.c
@@ -1691,6 +1691,8 @@ static struct s3c2410_udc memory = {
 			.name		= ep0name,
 			.ops		= &s3c2410_ep_ops,
 			.maxpacket	= EP0_FIFO_SIZE,
+			.caps		= USB_EP_CAPS(USB_EP_CAPS_TYPE_CONTROL,
+						USB_EP_CAPS_DIR_ALL),
 		},
 		.dev		= &memory,
 	},
@@ -1702,6 +1704,8 @@ static struct s3c2410_udc memory = {
 			.name		= "ep1-bulk",
 			.ops		= &s3c2410_ep_ops,
 			.maxpacket	= EP_FIFO_SIZE,
+			.caps		= USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK,
+						USB_EP_CAPS_DIR_ALL),
 		},
 		.dev		= &memory,
 		.fifo_size	= EP_FIFO_SIZE,
@@ -1714,6 +1718,8 @@ static struct s3c2410_udc memory = {
 			.name		= "ep2-bulk",
 			.ops		= &s3c2410_ep_ops,
 			.maxpacket	= EP_FIFO_SIZE,
+			.caps		= USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK,
+						USB_EP_CAPS_DIR_ALL),
 		},
 		.dev		= &memory,
 		.fifo_size	= EP_FIFO_SIZE,
@@ -1726,6 +1732,8 @@ static struct s3c2410_udc memory = {
 			.name		= "ep3-bulk",
 			.ops		= &s3c2410_ep_ops,
 			.maxpacket	= EP_FIFO_SIZE,
+			.caps		= USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK,
+						USB_EP_CAPS_DIR_ALL),
 		},
 		.dev		= &memory,
 		.fifo_size	= EP_FIFO_SIZE,
@@ -1738,6 +1746,8 @@ static struct s3c2410_udc memory = {
 			.name		= "ep4-bulk",
 			.ops		= &s3c2410_ep_ops,
 			.maxpacket	= EP_FIFO_SIZE,
+			.caps		= USB_EP_CAPS(USB_EP_CAPS_TYPE_BULK,
+						USB_EP_CAPS_DIR_ALL),
 		},
 		.dev		= &memory,
 		.fifo_size	= EP_FIFO_SIZE,
-- 
1.9.1

[PATCH v5 32/46] usb: gadget: udc-xilinx: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/udc/udc-xilinx.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/usb/gadget/udc/udc-xilinx.c b/drivers/usb/gadget/udc/udc-xilinx.c
index 1f24274..1cbb0ac 100644
--- a/drivers/usb/gadget/udc/udc-xilinx.c
+++ b/drivers/usb/gadget/udc/udc-xilinx.c
@@ -1317,12 +1317,21 @@ static void xudc_eps_init(struct xusb_udc *udc)
 			snprintf(ep->name, EPNAME_SIZE, "ep%d", ep_number);
 			ep->ep_usb.name = ep->name;
 			ep->ep_usb.ops = &xusb_ep_ops;
+
+			ep->ep_usb.caps.type_iso = true;
+			ep->ep_usb.caps.type_bulk = true;
+			ep->ep_usb.caps.type_int = true;
 		} else {
 			ep->ep_usb.name = ep0name;
 			usb_ep_set_maxpacket_limit(&ep->ep_usb, EP0_MAX_PACKET);
 			ep->ep_usb.ops = &xusb_ep0_ops;
+
+			ep->ep_usb.caps.type_control = true;
 		}
 
+		ep->ep_usb.caps.dir_in = true;
+		ep->ep_usb.caps.dir_out = true;
+
 		ep->udc = udc;
 		ep->epnumber = ep_number;
 		ep->desc = NULL;
-- 
1.9.1

[PATCH v5 32/46] usb: gadget: udc-xilinx: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/udc/udc-xilinx.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/usb/gadget/udc/udc-xilinx.c b/drivers/usb/gadget/udc/udc-xilinx.c
index 1f24274..1cbb0ac 100644
--- a/drivers/usb/gadget/udc/udc-xilinx.c
+++ b/drivers/usb/gadget/udc/udc-xilinx.c
@@ -1317,12 +1317,21 @@ static void xudc_eps_init(struct xusb_udc *udc)
 			snprintf(ep->name, EPNAME_SIZE, "ep%d", ep_number);
 			ep->ep_usb.name = ep->name;
 			ep->ep_usb.ops = &xusb_ep_ops;
+
+			ep->ep_usb.caps.type_iso = true;
+			ep->ep_usb.caps.type_bulk = true;
+			ep->ep_usb.caps.type_int = true;
 		} else {
 			ep->ep_usb.name = ep0name;
 			usb_ep_set_maxpacket_limit(&ep->ep_usb, EP0_MAX_PACKET);
 			ep->ep_usb.ops = &xusb_ep0_ops;
+
+			ep->ep_usb.caps.type_control = true;
 		}
 
+		ep->ep_usb.caps.dir_in = true;
+		ep->ep_usb.caps.dir_out = true;
+
 		ep->udc = udc;
 		ep->epnumber = ep_number;
 		ep->desc = NULL;
-- 
1.9.1

[PATCH v5 32/46] usb: gadget: udc-xilinx: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/udc/udc-xilinx.c | 9 +++++++++
 1 file changed, 9 insertions(+)

diff --git a/drivers/usb/gadget/udc/udc-xilinx.c b/drivers/usb/gadget/udc/udc-xilinx.c
index 1f24274..1cbb0ac 100644
--- a/drivers/usb/gadget/udc/udc-xilinx.c
+++ b/drivers/usb/gadget/udc/udc-xilinx.c
@@ -1317,12 +1317,21 @@ static void xudc_eps_init(struct xusb_udc *udc)
 			snprintf(ep->name, EPNAME_SIZE, "ep%d", ep_number);
 			ep->ep_usb.name = ep->name;
 			ep->ep_usb.ops = &xusb_ep_ops;
+
+			ep->ep_usb.caps.type_iso = true;
+			ep->ep_usb.caps.type_bulk = true;
+			ep->ep_usb.caps.type_int = true;
 		} else {
 			ep->ep_usb.name = ep0name;
 			usb_ep_set_maxpacket_limit(&ep->ep_usb, EP0_MAX_PACKET);
 			ep->ep_usb.ops = &xusb_ep0_ops;
+
+			ep->ep_usb.caps.type_control = true;
 		}
 
+		ep->ep_usb.caps.dir_in = true;
+		ep->ep_usb.caps.dir_out = true;
+
 		ep->udc = udc;
 		ep->epnumber = ep_number;
 		ep->desc = NULL;
-- 
1.9.1

[PATCH v5 33/46] usb: isp1760: udc: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/isp1760/isp1760-udc.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/usb/isp1760/isp1760-udc.c b/drivers/usb/isp1760/isp1760-udc.c
index 3699962..1c3d0fd 100644
--- a/drivers/usb/isp1760/isp1760-udc.c
+++ b/drivers/usb/isp1760/isp1760-udc.c
@@ -1383,13 +1383,24 @@ static void isp1760_udc_init_eps(struct isp1760_udc *udc)
 		 */
 		if (ep_num == 0) {
 			usb_ep_set_maxpacket_limit(&ep->ep, 64);
+			ep->ep.caps.type_control = true;
+			ep->ep.caps.dir_in = true;
+			ep->ep.caps.dir_out = true;
 			ep->maxpacket = 64;
 			udc->gadget.ep0 = &ep->ep;
 		} else {
 			usb_ep_set_maxpacket_limit(&ep->ep, 512);
+			ep->ep.caps.type_iso = true;
+			ep->ep.caps.type_bulk = true;
+			ep->ep.caps.type_int = true;
 			ep->maxpacket = 0;
 			list_add_tail(&ep->ep.ep_list, &udc->gadget.ep_list);
 		}
+
+		if (is_in)
+			ep->ep.caps.dir_in = true;
+		else
+			ep->ep.caps.dir_out = true;
 	}
 }
 
-- 
1.9.1

[PATCH v5 33/46] usb: isp1760: udc: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/isp1760/isp1760-udc.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/usb/isp1760/isp1760-udc.c b/drivers/usb/isp1760/isp1760-udc.c
index 3699962..1c3d0fd 100644
--- a/drivers/usb/isp1760/isp1760-udc.c
+++ b/drivers/usb/isp1760/isp1760-udc.c
@@ -1383,13 +1383,24 @@ static void isp1760_udc_init_eps(struct isp1760_udc *udc)
 		 */
 		if (ep_num == 0) {
 			usb_ep_set_maxpacket_limit(&ep->ep, 64);
+			ep->ep.caps.type_control = true;
+			ep->ep.caps.dir_in = true;
+			ep->ep.caps.dir_out = true;
 			ep->maxpacket = 64;
 			udc->gadget.ep0 = &ep->ep;
 		} else {
 			usb_ep_set_maxpacket_limit(&ep->ep, 512);
+			ep->ep.caps.type_iso = true;
+			ep->ep.caps.type_bulk = true;
+			ep->ep.caps.type_int = true;
 			ep->maxpacket = 0;
 			list_add_tail(&ep->ep.ep_list, &udc->gadget.ep_list);
 		}
+
+		if (is_in)
+			ep->ep.caps.dir_in = true;
+		else
+			ep->ep.caps.dir_out = true;
 	}
 }
 
-- 
1.9.1

[PATCH v5 33/46] usb: isp1760: udc: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/isp1760/isp1760-udc.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/usb/isp1760/isp1760-udc.c b/drivers/usb/isp1760/isp1760-udc.c
index 3699962..1c3d0fd 100644
--- a/drivers/usb/isp1760/isp1760-udc.c
+++ b/drivers/usb/isp1760/isp1760-udc.c
@@ -1383,13 +1383,24 @@ static void isp1760_udc_init_eps(struct isp1760_udc *udc)
 		 */
 		if (ep_num == 0) {
 			usb_ep_set_maxpacket_limit(&ep->ep, 64);
+			ep->ep.caps.type_control = true;
+			ep->ep.caps.dir_in = true;
+			ep->ep.caps.dir_out = true;
 			ep->maxpacket = 64;
 			udc->gadget.ep0 = &ep->ep;
 		} else {
 			usb_ep_set_maxpacket_limit(&ep->ep, 512);
+			ep->ep.caps.type_iso = true;
+			ep->ep.caps.type_bulk = true;
+			ep->ep.caps.type_int = true;
 			ep->maxpacket = 0;
 			list_add_tail(&ep->ep.ep_list, &udc->gadget.ep_list);
 		}
+
+		if (is_in)
+			ep->ep.caps.dir_in = true;
+		else
+			ep->ep.caps.dir_out = true;
 	}
 }
 
-- 
1.9.1

[PATCH v5 34/46] usb: musb: gadget: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/musb/musb_gadget.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/drivers/usb/musb/musb_gadget.c b/drivers/usb/musb/musb_gadget.c
index 9e18178..4150baf 100644
--- a/drivers/usb/musb/musb_gadget.c
+++ b/drivers/usb/musb/musb_gadget.c
@@ -1729,6 +1729,7 @@ init_peripheral_ep(struct musb *musb, struct musb_ep *ep, u8 epnum, int is_in)
 	INIT_LIST_HEAD(&ep->end_point.ep_list);
 	if (!epnum) {
 		usb_ep_set_maxpacket_limit(&ep->end_point, 64);
+		ep->end_point.caps.type_control = true;
 		ep->end_point.ops = &musb_g_ep0_ops;
 		musb->g.ep0 = &ep->end_point;
 	} else {
@@ -1736,9 +1737,20 @@ init_peripheral_ep(struct musb *musb, struct musb_ep *ep, u8 epnum, int is_in)
 			usb_ep_set_maxpacket_limit(&ep->end_point, hw_ep->max_packet_sz_tx);
 		else
 			usb_ep_set_maxpacket_limit(&ep->end_point, hw_ep->max_packet_sz_rx);
+		ep->end_point.caps.type_iso = true;
+		ep->end_point.caps.type_bulk = true;
+		ep->end_point.caps.type_int = true;
 		ep->end_point.ops = &musb_ep_ops;
 		list_add_tail(&ep->end_point.ep_list, &musb->g.ep_list);
 	}
+
+	if (!epnum || hw_ep->is_shared_fifo) {
+		ep->end_point.caps.dir_in = true;
+		ep->end_point.caps.dir_out = true;
+	} else if (is_in)
+		ep->end_point.caps.dir_in = true;
+	else
+		ep->end_point.caps.dir_out = true;
 }
 
 /*
-- 
1.9.1

[PATCH v5 34/46] usb: musb: gadget: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/musb/musb_gadget.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/drivers/usb/musb/musb_gadget.c b/drivers/usb/musb/musb_gadget.c
index 9e18178..4150baf 100644
--- a/drivers/usb/musb/musb_gadget.c
+++ b/drivers/usb/musb/musb_gadget.c
@@ -1729,6 +1729,7 @@ init_peripheral_ep(struct musb *musb, struct musb_ep *ep, u8 epnum, int is_in)
 	INIT_LIST_HEAD(&ep->end_point.ep_list);
 	if (!epnum) {
 		usb_ep_set_maxpacket_limit(&ep->end_point, 64);
+		ep->end_point.caps.type_control = true;
 		ep->end_point.ops = &musb_g_ep0_ops;
 		musb->g.ep0 = &ep->end_point;
 	} else {
@@ -1736,9 +1737,20 @@ init_peripheral_ep(struct musb *musb, struct musb_ep *ep, u8 epnum, int is_in)
 			usb_ep_set_maxpacket_limit(&ep->end_point, hw_ep->max_packet_sz_tx);
 		else
 			usb_ep_set_maxpacket_limit(&ep->end_point, hw_ep->max_packet_sz_rx);
+		ep->end_point.caps.type_iso = true;
+		ep->end_point.caps.type_bulk = true;
+		ep->end_point.caps.type_int = true;
 		ep->end_point.ops = &musb_ep_ops;
 		list_add_tail(&ep->end_point.ep_list, &musb->g.ep_list);
 	}
+
+	if (!epnum || hw_ep->is_shared_fifo) {
+		ep->end_point.caps.dir_in = true;
+		ep->end_point.caps.dir_out = true;
+	} else if (is_in)
+		ep->end_point.caps.dir_in = true;
+	else
+		ep->end_point.caps.dir_out = true;
 }
 
 /*
-- 
1.9.1

[PATCH v5 34/46] usb: musb: gadget: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/musb/musb_gadget.c | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/drivers/usb/musb/musb_gadget.c b/drivers/usb/musb/musb_gadget.c
index 9e18178..4150baf 100644
--- a/drivers/usb/musb/musb_gadget.c
+++ b/drivers/usb/musb/musb_gadget.c
@@ -1729,6 +1729,7 @@ init_peripheral_ep(struct musb *musb, struct musb_ep *ep, u8 epnum, int is_in)
 	INIT_LIST_HEAD(&ep->end_point.ep_list);
 	if (!epnum) {
 		usb_ep_set_maxpacket_limit(&ep->end_point, 64);
+		ep->end_point.caps.type_control = true;
 		ep->end_point.ops = &musb_g_ep0_ops;
 		musb->g.ep0 = &ep->end_point;
 	} else {
@@ -1736,9 +1737,20 @@ init_peripheral_ep(struct musb *musb, struct musb_ep *ep, u8 epnum, int is_in)
 			usb_ep_set_maxpacket_limit(&ep->end_point, hw_ep->max_packet_sz_tx);
 		else
 			usb_ep_set_maxpacket_limit(&ep->end_point, hw_ep->max_packet_sz_rx);
+		ep->end_point.caps.type_iso = true;
+		ep->end_point.caps.type_bulk = true;
+		ep->end_point.caps.type_int = true;
 		ep->end_point.ops = &musb_ep_ops;
 		list_add_tail(&ep->end_point.ep_list, &musb->g.ep_list);
 	}
+
+	if (!epnum || hw_ep->is_shared_fifo) {
+		ep->end_point.caps.dir_in = true;
+		ep->end_point.caps.dir_out = true;
+	} else if (is_in)
+		ep->end_point.caps.dir_in = true;
+	else
+		ep->end_point.caps.dir_out = true;
 }
 
 /*
-- 
1.9.1

[PATCH v5 35/46] usb: renesas: gadget: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/renesas_usbhs/mod_gadget.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/usb/renesas_usbhs/mod_gadget.c b/drivers/usb/renesas_usbhs/mod_gadget.c
index 494dfe0..de4f97d 100644
--- a/drivers/usb/renesas_usbhs/mod_gadget.c
+++ b/drivers/usb/renesas_usbhs/mod_gadget.c
@@ -1103,12 +1103,18 @@ int usbhs_mod_gadget_probe(struct usbhs_priv *priv)
 		if (usbhsg_is_dcp(uep)) {
 			gpriv->gadget.ep0 = &uep->ep;
 			usb_ep_set_maxpacket_limit(&uep->ep, 64);
+			uep->ep.caps.type_control = true;
 		}
 		/* init normal pipe */
 		else {
 			usb_ep_set_maxpacket_limit(&uep->ep, 512);
+			uep->ep.caps.type_iso = true;
+			uep->ep.caps.type_bulk = true;
+			uep->ep.caps.type_int = true;
 			list_add_tail(&uep->ep.ep_list, &gpriv->gadget.ep_list);
 		}
+		uep->ep.caps.dir_in = true;
+		uep->ep.caps.dir_out = true;
 	}
 
 	ret = usb_add_gadget_udc(dev, &gpriv->gadget);
-- 
1.9.1

[PATCH v5 35/46] usb: renesas: gadget: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/renesas_usbhs/mod_gadget.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/usb/renesas_usbhs/mod_gadget.c b/drivers/usb/renesas_usbhs/mod_gadget.c
index 494dfe0..de4f97d 100644
--- a/drivers/usb/renesas_usbhs/mod_gadget.c
+++ b/drivers/usb/renesas_usbhs/mod_gadget.c
@@ -1103,12 +1103,18 @@ int usbhs_mod_gadget_probe(struct usbhs_priv *priv)
 		if (usbhsg_is_dcp(uep)) {
 			gpriv->gadget.ep0 = &uep->ep;
 			usb_ep_set_maxpacket_limit(&uep->ep, 64);
+			uep->ep.caps.type_control = true;
 		}
 		/* init normal pipe */
 		else {
 			usb_ep_set_maxpacket_limit(&uep->ep, 512);
+			uep->ep.caps.type_iso = true;
+			uep->ep.caps.type_bulk = true;
+			uep->ep.caps.type_int = true;
 			list_add_tail(&uep->ep.ep_list, &gpriv->gadget.ep_list);
 		}
+		uep->ep.caps.dir_in = true;
+		uep->ep.caps.dir_out = true;
 	}
 
 	ret = usb_add_gadget_udc(dev, &gpriv->gadget);
-- 
1.9.1

[PATCH v5 35/46] usb: renesas: gadget: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/renesas_usbhs/mod_gadget.c | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/drivers/usb/renesas_usbhs/mod_gadget.c b/drivers/usb/renesas_usbhs/mod_gadget.c
index 494dfe0..de4f97d 100644
--- a/drivers/usb/renesas_usbhs/mod_gadget.c
+++ b/drivers/usb/renesas_usbhs/mod_gadget.c
@@ -1103,12 +1103,18 @@ int usbhs_mod_gadget_probe(struct usbhs_priv *priv)
 		if (usbhsg_is_dcp(uep)) {
 			gpriv->gadget.ep0 = &uep->ep;
 			usb_ep_set_maxpacket_limit(&uep->ep, 64);
+			uep->ep.caps.type_control = true;
 		}
 		/* init normal pipe */
 		else {
 			usb_ep_set_maxpacket_limit(&uep->ep, 512);
+			uep->ep.caps.type_iso = true;
+			uep->ep.caps.type_bulk = true;
+			uep->ep.caps.type_int = true;
 			list_add_tail(&uep->ep.ep_list, &gpriv->gadget.ep_list);
 		}
+		uep->ep.caps.dir_in = true;
+		uep->ep.caps.dir_out = true;
 	}
 
 	ret = usb_add_gadget_udc(dev, &gpriv->gadget);
-- 
1.9.1

[PATCH v5 36/46] usb: gadget: atmel_usba_udc: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/udc/atmel_usba_udc.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/usb/gadget/udc/atmel_usba_udc.c b/drivers/usb/gadget/udc/atmel_usba_udc.c
index 37d414e..267d84f 100644
--- a/drivers/usb/gadget/udc/atmel_usba_udc.c
+++ b/drivers/usb/gadget/udc/atmel_usba_udc.c
@@ -2067,6 +2067,17 @@ static struct usba_ep * usba_udc_pdata(struct platform_device *pdev,
 		ep->can_dma = pdata->ep[i].can_dma;
 		ep->can_isoc = pdata->ep[i].can_isoc;
 
+		if (i == 0) {
+			ep->ep.caps.type_control = true;
+		} else {
+			ep->ep.caps.type_iso = ep->can_isoc;
+			ep->ep.caps.type_bulk = true;
+			ep->ep.caps.type_int = true;
+		}
+
+		ep->ep.caps.dir_in = true;
+		ep->ep.caps.dir_out = true;
+
 		if (i)
 			list_add_tail(&ep->ep.ep_list, &udc->gadget.ep_list);
 	}
-- 
1.9.1

[PATCH v5 36/46] usb: gadget: atmel_usba_udc: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/udc/atmel_usba_udc.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/usb/gadget/udc/atmel_usba_udc.c b/drivers/usb/gadget/udc/atmel_usba_udc.c
index 37d414e..267d84f 100644
--- a/drivers/usb/gadget/udc/atmel_usba_udc.c
+++ b/drivers/usb/gadget/udc/atmel_usba_udc.c
@@ -2067,6 +2067,17 @@ static struct usba_ep * usba_udc_pdata(struct platform_device *pdev,
 		ep->can_dma = pdata->ep[i].can_dma;
 		ep->can_isoc = pdata->ep[i].can_isoc;
 
+		if (i == 0) {
+			ep->ep.caps.type_control = true;
+		} else {
+			ep->ep.caps.type_iso = ep->can_isoc;
+			ep->ep.caps.type_bulk = true;
+			ep->ep.caps.type_int = true;
+		}
+
+		ep->ep.caps.dir_in = true;
+		ep->ep.caps.dir_out = true;
+
 		if (i)
 			list_add_tail(&ep->ep.ep_list, &udc->gadget.ep_list);
 	}
-- 
1.9.1

[PATCH v5 36/46] usb: gadget: atmel_usba_udc: add ep capabilities support

[Robert Baldyga]

Convert endpoint configuration to new capabilities model.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/udc/atmel_usba_udc.c | 11 +++++++++++
 1 file changed, 11 insertions(+)

diff --git a/drivers/usb/gadget/udc/atmel_usba_udc.c b/drivers/usb/gadget/udc/atmel_usba_udc.c
index 37d414e..267d84f 100644
--- a/drivers/usb/gadget/udc/atmel_usba_udc.c
+++ b/drivers/usb/gadget/udc/atmel_usba_udc.c
@@ -2067,6 +2067,17 @@ static struct usba_ep * usba_udc_pdata(struct platform_device *pdev,
 		ep->can_dma = pdata->ep[i].can_dma;
 		ep->can_isoc = pdata->ep[i].can_isoc;
 
+		if (i == 0) {
+			ep->ep.caps.type_control = true;
+		} else {
+			ep->ep.caps.type_iso = ep->can_isoc;
+			ep->ep.caps.type_bulk = true;
+			ep->ep.caps.type_int = true;
+		}
+
+		ep->ep.caps.dir_in = true;
+		ep->ep.caps.dir_out = true;
+
 		if (i)
 			list_add_tail(&ep->ep.ep_list, &udc->gadget.ep_list);
 	}
-- 
1.9.1

[PATCH v5 37/46] usb: gadget: epautoconf: add endpoint capabilities flags verification

[Robert Baldyga]

Introduce endpoint matching mechanism basing on endpoint capabilities
flags. We check if endpoint supports transfer type and direction requested
in ep descriptor. Since we have this new endpoint matching mechanism
there is no need to have old code guessing endpoint capabilities basing
on its name, so we are getting rid of it. Remove also the obsolete comment.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/epautoconf.c | 96 +++++++++++++----------------------------
 1 file changed, 30 insertions(+), 66 deletions(-)

diff --git a/drivers/usb/gadget/epautoconf.c b/drivers/usb/gadget/epautoconf.c
index 8e00ca7..af4b10a 100644
--- a/drivers/usb/gadget/epautoconf.c
+++ b/drivers/usb/gadget/epautoconf.c
@@ -22,22 +22,6 @@
 
 #include "gadget_chips.h"
 
-/*
- * This should work with endpoints from controller drivers sharing the
- * same endpoint naming convention.  By example:
- *
- *	- ep1, ep2, ... address is fixed, not direction or type
- *	- ep1in, ep2out, ... address and direction are fixed, not type
- *	- ep1-bulk, ep2-bulk, ... address and type are fixed, not direction
- *	- ep1in-bulk, ep2out-iso, ... all three are fixed
- *	- ep-* ... no functionality restrictions
- *
- * Type suffixes are "-bulk", "-iso", or "-int".  Numbers are decimal.
- * Less common restrictions are implied by gadget_is_*().
- *
- * NOTE:  each endpoint is unidirectional, as specified by its USB
- * descriptor; and isn't specific to a configuration or altsetting.
- */
 static int
 ep_matches (
 	struct usb_gadget		*gadget,
@@ -47,7 +31,6 @@ ep_matches (
 )
 {
 	u8		type;
-	const char	*tmp;
 	u16		max;
 
 	int		num_req_streams = 0;
@@ -56,58 +39,39 @@ ep_matches (
 	if (ep->claimed)
 		return 0;
 
-	/* only support ep0 for portable CONTROL traffic */
 	type = usb_endpoint_type(desc);
-	if (USB_ENDPOINT_XFER_CONTROL == type)
-		return 0;
-
-	/* some other naming convention */
-	if ('e' != ep->name[0])
+	switch (type) {
+	case USB_ENDPOINT_XFER_CONTROL:
+		/* only support ep0 for portable CONTROL traffic */
 		return 0;
+	case USB_ENDPOINT_XFER_ISOC:
+		if (!ep->caps.type_iso)
+			return 0;
+		break;
+	case USB_ENDPOINT_XFER_BULK:
+		if (!ep->caps.type_bulk)
+			return 0;
+		break;
+	case USB_ENDPOINT_XFER_INT:
+		/* bulk endpoints handle interrupt transfers,
+		 * except the toggle-quirky iso-synch kind
+		 */
+		if (!ep->caps.type_int && !ep->caps.type_bulk)
+			return 0;
+		/* for now, avoid PXA "interrupt-in";
+		 * it's documented as never using DATA1.
+		 */
+		if (gadget_is_pxa(gadget) && ep->caps.type_int)
+			return 0;
+		break;
+	}
 
-	/* type-restriction:  "-iso", "-bulk", or "-int".
-	 * direction-restriction:  "in", "out".
-	 */
-	if ('-' != ep->name[2]) {
-		tmp = strrchr (ep->name, '-');
-		if (tmp) {
-			switch (type) {
-			case USB_ENDPOINT_XFER_INT:
-				/* bulk endpoints handle interrupt transfers,
-				 * except the toggle-quirky iso-synch kind
-				 */
-				if ('s' == tmp[2])	// == "-iso"
-					return 0;
-				/* for now, avoid PXA "interrupt-in";
-				 * it's documented as never using DATA1.
-				 */
-				if (gadget_is_pxa (gadget)
-						&& 'i' == tmp [1])
-					return 0;
-				break;
-			case USB_ENDPOINT_XFER_BULK:
-				if ('b' != tmp[1])	// != "-bulk"
-					return 0;
-				break;
-			case USB_ENDPOINT_XFER_ISOC:
-				if ('s' != tmp[2])	// != "-iso"
-					return 0;
-			}
-		} else {
-			tmp = ep->name + strlen (ep->name);
-		}
-
-		/* direction-restriction:  "..in-..", "out-.." */
-		tmp--;
-		if (!isdigit (*tmp)) {
-			if (desc->bEndpointAddress & USB_DIR_IN) {
-				if ('n' != *tmp)
-					return 0;
-			} else {
-				if ('t' != *tmp)
-					return 0;
-			}
-		}
+	if (usb_endpoint_dir_in(desc)) {
+		if (!ep->caps.dir_in)
+			return 0;
+	} else {
+		if (!ep->caps.dir_out)
+			return 0;
 	}
 
 	/*
-- 
1.9.1

[PATCH v5 37/46] usb: gadget: epautoconf: add endpoint capabilities flags verification

[Robert Baldyga]

Introduce endpoint matching mechanism basing on endpoint capabilities
flags. We check if endpoint supports transfer type and direction requested
in ep descriptor. Since we have this new endpoint matching mechanism
there is no need to have old code guessing endpoint capabilities basing
on its name, so we are getting rid of it. Remove also the obsolete comment.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/epautoconf.c | 96 +++++++++++++----------------------------
 1 file changed, 30 insertions(+), 66 deletions(-)

diff --git a/drivers/usb/gadget/epautoconf.c b/drivers/usb/gadget/epautoconf.c
index 8e00ca7..af4b10a 100644
--- a/drivers/usb/gadget/epautoconf.c
+++ b/drivers/usb/gadget/epautoconf.c
@@ -22,22 +22,6 @@
 
 #include "gadget_chips.h"
 
-/*
- * This should work with endpoints from controller drivers sharing the
- * same endpoint naming convention.  By example:
- *
- *	- ep1, ep2, ... address is fixed, not direction or type
- *	- ep1in, ep2out, ... address and direction are fixed, not type
- *	- ep1-bulk, ep2-bulk, ... address and type are fixed, not direction
- *	- ep1in-bulk, ep2out-iso, ... all three are fixed
- *	- ep-* ... no functionality restrictions
- *
- * Type suffixes are "-bulk", "-iso", or "-int".  Numbers are decimal.
- * Less common restrictions are implied by gadget_is_*().
- *
- * NOTE:  each endpoint is unidirectional, as specified by its USB
- * descriptor; and isn't specific to a configuration or altsetting.
- */
 static int
 ep_matches (
 	struct usb_gadget		*gadget,
@@ -47,7 +31,6 @@ ep_matches (
 )
 {
 	u8		type;
-	const char	*tmp;
 	u16		max;
 
 	int		num_req_streams = 0;
@@ -56,58 +39,39 @@ ep_matches (
 	if (ep->claimed)
 		return 0;
 
-	/* only support ep0 for portable CONTROL traffic */
 	type = usb_endpoint_type(desc);
-	if (USB_ENDPOINT_XFER_CONTROL == type)
-		return 0;
-
-	/* some other naming convention */
-	if ('e' != ep->name[0])
+	switch (type) {
+	case USB_ENDPOINT_XFER_CONTROL:
+		/* only support ep0 for portable CONTROL traffic */
 		return 0;
+	case USB_ENDPOINT_XFER_ISOC:
+		if (!ep->caps.type_iso)
+			return 0;
+		break;
+	case USB_ENDPOINT_XFER_BULK:
+		if (!ep->caps.type_bulk)
+			return 0;
+		break;
+	case USB_ENDPOINT_XFER_INT:
+		/* bulk endpoints handle interrupt transfers,
+		 * except the toggle-quirky iso-synch kind
+		 */
+		if (!ep->caps.type_int && !ep->caps.type_bulk)
+			return 0;
+		/* for now, avoid PXA "interrupt-in";
+		 * it's documented as never using DATA1.
+		 */
+		if (gadget_is_pxa(gadget) && ep->caps.type_int)
+			return 0;
+		break;
+	}
 
-	/* type-restriction:  "-iso", "-bulk", or "-int".
-	 * direction-restriction:  "in", "out".
-	 */
-	if ('-' != ep->name[2]) {
-		tmp = strrchr (ep->name, '-');
-		if (tmp) {
-			switch (type) {
-			case USB_ENDPOINT_XFER_INT:
-				/* bulk endpoints handle interrupt transfers,
-				 * except the toggle-quirky iso-synch kind
-				 */
-				if ('s' == tmp[2])	// == "-iso"
-					return 0;
-				/* for now, avoid PXA "interrupt-in";
-				 * it's documented as never using DATA1.
-				 */
-				if (gadget_is_pxa (gadget)
-						&& 'i' == tmp [1])
-					return 0;
-				break;
-			case USB_ENDPOINT_XFER_BULK:
-				if ('b' != tmp[1])	// != "-bulk"
-					return 0;
-				break;
-			case USB_ENDPOINT_XFER_ISOC:
-				if ('s' != tmp[2])	// != "-iso"
-					return 0;
-			}
-		} else {
-			tmp = ep->name + strlen (ep->name);
-		}
-
-		/* direction-restriction:  "..in-..", "out-.." */
-		tmp--;
-		if (!isdigit (*tmp)) {
-			if (desc->bEndpointAddress & USB_DIR_IN) {
-				if ('n' != *tmp)
-					return 0;
-			} else {
-				if ('t' != *tmp)
-					return 0;
-			}
-		}
+	if (usb_endpoint_dir_in(desc)) {
+		if (!ep->caps.dir_in)
+			return 0;
+	} else {
+		if (!ep->caps.dir_out)
+			return 0;
 	}
 
 	/*
-- 
1.9.1

[PATCH v5 37/46] usb: gadget: epautoconf: add endpoint capabilities flags verification

[Robert Baldyga]

Introduce endpoint matching mechanism basing on endpoint capabilities
flags. We check if endpoint supports transfer type and direction requested
in ep descriptor. Since we have this new endpoint matching mechanism
there is no need to have old code guessing endpoint capabilities basing
on its name, so we are getting rid of it. Remove also the obsolete comment.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/epautoconf.c | 96 +++++++++++++----------------------------
 1 file changed, 30 insertions(+), 66 deletions(-)

diff --git a/drivers/usb/gadget/epautoconf.c b/drivers/usb/gadget/epautoconf.c
index 8e00ca7..af4b10a 100644
--- a/drivers/usb/gadget/epautoconf.c
+++ b/drivers/usb/gadget/epautoconf.c
@@ -22,22 +22,6 @@
 
 #include "gadget_chips.h"
 
-/*
- * This should work with endpoints from controller drivers sharing the
- * same endpoint naming convention.  By example:
- *
- *	- ep1, ep2, ... address is fixed, not direction or type
- *	- ep1in, ep2out, ... address and direction are fixed, not type
- *	- ep1-bulk, ep2-bulk, ... address and type are fixed, not direction
- *	- ep1in-bulk, ep2out-iso, ... all three are fixed
- *	- ep-* ... no functionality restrictions
- *
- * Type suffixes are "-bulk", "-iso", or "-int".  Numbers are decimal.
- * Less common restrictions are implied by gadget_is_*().
- *
- * NOTE:  each endpoint is unidirectional, as specified by its USB
- * descriptor; and isn't specific to a configuration or altsetting.
- */
 static int
 ep_matches (
 	struct usb_gadget		*gadget,
@@ -47,7 +31,6 @@ ep_matches (
 )
 {
 	u8		type;
-	const char	*tmp;
 	u16		max;
 
 	int		num_req_streams = 0;
@@ -56,58 +39,39 @@ ep_matches (
 	if (ep->claimed)
 		return 0;
 
-	/* only support ep0 for portable CONTROL traffic */
 	type = usb_endpoint_type(desc);
-	if (USB_ENDPOINT_XFER_CONTROL == type)
-		return 0;
-
-	/* some other naming convention */
-	if ('e' != ep->name[0])
+	switch (type) {
+	case USB_ENDPOINT_XFER_CONTROL:
+		/* only support ep0 for portable CONTROL traffic */
 		return 0;
+	case USB_ENDPOINT_XFER_ISOC:
+		if (!ep->caps.type_iso)
+			return 0;
+		break;
+	case USB_ENDPOINT_XFER_BULK:
+		if (!ep->caps.type_bulk)
+			return 0;
+		break;
+	case USB_ENDPOINT_XFER_INT:
+		/* bulk endpoints handle interrupt transfers,
+		 * except the toggle-quirky iso-synch kind
+		 */
+		if (!ep->caps.type_int && !ep->caps.type_bulk)
+			return 0;
+		/* for now, avoid PXA "interrupt-in";
+		 * it's documented as never using DATA1.
+		 */
+		if (gadget_is_pxa(gadget) && ep->caps.type_int)
+			return 0;
+		break;
+	}
 
-	/* type-restriction:  "-iso", "-bulk", or "-int".
-	 * direction-restriction:  "in", "out".
-	 */
-	if ('-' != ep->name[2]) {
-		tmp = strrchr (ep->name, '-');
-		if (tmp) {
-			switch (type) {
-			case USB_ENDPOINT_XFER_INT:
-				/* bulk endpoints handle interrupt transfers,
-				 * except the toggle-quirky iso-synch kind
-				 */
-				if ('s' == tmp[2])	// == "-iso"
-					return 0;
-				/* for now, avoid PXA "interrupt-in";
-				 * it's documented as never using DATA1.
-				 */
-				if (gadget_is_pxa (gadget)
-						&& 'i' == tmp [1])
-					return 0;
-				break;
-			case USB_ENDPOINT_XFER_BULK:
-				if ('b' != tmp[1])	// != "-bulk"
-					return 0;
-				break;
-			case USB_ENDPOINT_XFER_ISOC:
-				if ('s' != tmp[2])	// != "-iso"
-					return 0;
-			}
-		} else {
-			tmp = ep->name + strlen (ep->name);
-		}
-
-		/* direction-restriction:  "..in-..", "out-.." */
-		tmp--;
-		if (!isdigit (*tmp)) {
-			if (desc->bEndpointAddress & USB_DIR_IN) {
-				if ('n' != *tmp)
-					return 0;
-			} else {
-				if ('t' != *tmp)
-					return 0;
-			}
-		}
+	if (usb_endpoint_dir_in(desc)) {
+		if (!ep->caps.dir_in)
+			return 0;
+	} else {
+		if (!ep->caps.dir_out)
+			return 0;
 	}
 
 	/*
-- 
1.9.1

[PATCH v5 38/46] usb: gadget: epautoconf: remove pxa quirk from ep_matches()

[Robert Baldyga]

The same effect can be achieved by using capabilities flags, so now we can
get rid of handling of hardware specific limitations in generic code.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/epautoconf.c     | 5 -----
 drivers/usb/gadget/udc/pxa25x_udc.c | 9 +++------
 2 files changed, 3 insertions(+), 11 deletions(-)

diff --git a/drivers/usb/gadget/epautoconf.c b/drivers/usb/gadget/epautoconf.c
index af4b10a..4f66e9d73 100644
--- a/drivers/usb/gadget/epautoconf.c
+++ b/drivers/usb/gadget/epautoconf.c
@@ -58,11 +58,6 @@ ep_matches (
 		 */
 		if (!ep->caps.type_int && !ep->caps.type_bulk)
 			return 0;
-		/* for now, avoid PXA "interrupt-in";
-		 * it's documented as never using DATA1.
-		 */
-		if (gadget_is_pxa(gadget) && ep->caps.type_int)
-			return 0;
 		break;
 	}
 
diff --git a/drivers/usb/gadget/udc/pxa25x_udc.c b/drivers/usb/gadget/udc/pxa25x_udc.c
index b4d25dc..b82cb14 100644
--- a/drivers/usb/gadget/udc/pxa25x_udc.c
+++ b/drivers/usb/gadget/udc/pxa25x_udc.c
@@ -1899,8 +1899,7 @@ static struct pxa25x_udc memory = {
 			.name		= "ep5in-int",
 			.ops		= &pxa25x_ep_ops,
 			.maxpacket	= INT_FIFO_SIZE,
-			.caps		= USB_EP_CAPS(USB_EP_CAPS_TYPE_INT,
-						USB_EP_CAPS_DIR_IN),
+			.caps		= USB_EP_CAPS(0, 0),
 		},
 		.dev		= &memory,
 		.fifo_size	= INT_FIFO_SIZE,
@@ -1978,8 +1977,7 @@ static struct pxa25x_udc memory = {
 			.name		= "ep10in-int",
 			.ops		= &pxa25x_ep_ops,
 			.maxpacket	= INT_FIFO_SIZE,
-			.caps		= USB_EP_CAPS(USB_EP_CAPS_TYPE_INT,
-						USB_EP_CAPS_DIR_IN),
+			.caps		= USB_EP_CAPS(0, 0),
 		},
 		.dev		= &memory,
 		.fifo_size	= INT_FIFO_SIZE,
@@ -2057,8 +2055,7 @@ static struct pxa25x_udc memory = {
 			.name		= "ep15in-int",
 			.ops		= &pxa25x_ep_ops,
 			.maxpacket	= INT_FIFO_SIZE,
-			.caps		= USB_EP_CAPS(USB_EP_CAPS_TYPE_INT,
-						USB_EP_CAPS_DIR_IN),
+			.caps		= USB_EP_CAPS(0, 0),
 		},
 		.dev		= &memory,
 		.fifo_size	= INT_FIFO_SIZE,
-- 
1.9.1

[PATCH v5 38/46] usb: gadget: epautoconf: remove pxa quirk from ep_matches()

[Robert Baldyga]

The same effect can be achieved by using capabilities flags, so now we can
get rid of handling of hardware specific limitations in generic code.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/epautoconf.c     | 5 -----
 drivers/usb/gadget/udc/pxa25x_udc.c | 9 +++------
 2 files changed, 3 insertions(+), 11 deletions(-)

diff --git a/drivers/usb/gadget/epautoconf.c b/drivers/usb/gadget/epautoconf.c
index af4b10a..4f66e9d73 100644
--- a/drivers/usb/gadget/epautoconf.c
+++ b/drivers/usb/gadget/epautoconf.c
@@ -58,11 +58,6 @@ ep_matches (
 		 */
 		if (!ep->caps.type_int && !ep->caps.type_bulk)
 			return 0;
-		/* for now, avoid PXA "interrupt-in";
-		 * it's documented as never using DATA1.
-		 */
-		if (gadget_is_pxa(gadget) && ep->caps.type_int)
-			return 0;
 		break;
 	}
 
diff --git a/drivers/usb/gadget/udc/pxa25x_udc.c b/drivers/usb/gadget/udc/pxa25x_udc.c
index b4d25dc..b82cb14 100644
--- a/drivers/usb/gadget/udc/pxa25x_udc.c
+++ b/drivers/usb/gadget/udc/pxa25x_udc.c
@@ -1899,8 +1899,7 @@ static struct pxa25x_udc memory = {
 			.name		= "ep5in-int",
 			.ops		= &pxa25x_ep_ops,
 			.maxpacket	= INT_FIFO_SIZE,
-			.caps		= USB_EP_CAPS(USB_EP_CAPS_TYPE_INT,
-						USB_EP_CAPS_DIR_IN),
+			.caps		= USB_EP_CAPS(0, 0),
 		},
 		.dev		= &memory,
 		.fifo_size	= INT_FIFO_SIZE,
@@ -1978,8 +1977,7 @@ static struct pxa25x_udc memory = {
 			.name		= "ep10in-int",
 			.ops		= &pxa25x_ep_ops,
 			.maxpacket	= INT_FIFO_SIZE,
-			.caps		= USB_EP_CAPS(USB_EP_CAPS_TYPE_INT,
-						USB_EP_CAPS_DIR_IN),
+			.caps		= USB_EP_CAPS(0, 0),
 		},
 		.dev		= &memory,
 		.fifo_size	= INT_FIFO_SIZE,
@@ -2057,8 +2055,7 @@ static struct pxa25x_udc memory = {
 			.name		= "ep15in-int",
 			.ops		= &pxa25x_ep_ops,
 			.maxpacket	= INT_FIFO_SIZE,
-			.caps		= USB_EP_CAPS(USB_EP_CAPS_TYPE_INT,
-						USB_EP_CAPS_DIR_IN),
+			.caps		= USB_EP_CAPS(0, 0),
 		},
 		.dev		= &memory,
 		.fifo_size	= INT_FIFO_SIZE,
-- 
1.9.1

[PATCH v5 38/46] usb: gadget: epautoconf: remove pxa quirk from ep_matches()

[Robert Baldyga]

The same effect can be achieved by using capabilities flags, so now we can
get rid of handling of hardware specific limitations in generic code.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/epautoconf.c     | 5 -----
 drivers/usb/gadget/udc/pxa25x_udc.c | 9 +++------
 2 files changed, 3 insertions(+), 11 deletions(-)

diff --git a/drivers/usb/gadget/epautoconf.c b/drivers/usb/gadget/epautoconf.c
index af4b10a..4f66e9d73 100644
--- a/drivers/usb/gadget/epautoconf.c
+++ b/drivers/usb/gadget/epautoconf.c
@@ -58,11 +58,6 @@ ep_matches (
 		 */
 		if (!ep->caps.type_int && !ep->caps.type_bulk)
 			return 0;
-		/* for now, avoid PXA "interrupt-in";
-		 * it's documented as never using DATA1.
-		 */
-		if (gadget_is_pxa(gadget) && ep->caps.type_int)
-			return 0;
 		break;
 	}
 
diff --git a/drivers/usb/gadget/udc/pxa25x_udc.c b/drivers/usb/gadget/udc/pxa25x_udc.c
index b4d25dc..b82cb14 100644
--- a/drivers/usb/gadget/udc/pxa25x_udc.c
+++ b/drivers/usb/gadget/udc/pxa25x_udc.c
@@ -1899,8 +1899,7 @@ static struct pxa25x_udc memory = {
 			.name		= "ep5in-int",
 			.ops		= &pxa25x_ep_ops,
 			.maxpacket	= INT_FIFO_SIZE,
-			.caps		= USB_EP_CAPS(USB_EP_CAPS_TYPE_INT,
-						USB_EP_CAPS_DIR_IN),
+			.caps		= USB_EP_CAPS(0, 0),
 		},
 		.dev		= &memory,
 		.fifo_size	= INT_FIFO_SIZE,
@@ -1978,8 +1977,7 @@ static struct pxa25x_udc memory = {
 			.name		= "ep10in-int",
 			.ops		= &pxa25x_ep_ops,
 			.maxpacket	= INT_FIFO_SIZE,
-			.caps		= USB_EP_CAPS(USB_EP_CAPS_TYPE_INT,
-						USB_EP_CAPS_DIR_IN),
+			.caps		= USB_EP_CAPS(0, 0),
 		},
 		.dev		= &memory,
 		.fifo_size	= INT_FIFO_SIZE,
@@ -2057,8 +2055,7 @@ static struct pxa25x_udc memory = {
 			.name		= "ep15in-int",
 			.ops		= &pxa25x_ep_ops,
 			.maxpacket	= INT_FIFO_SIZE,
-			.caps		= USB_EP_CAPS(USB_EP_CAPS_TYPE_INT,
-						USB_EP_CAPS_DIR_IN),
+			.caps		= USB_EP_CAPS(0, 0),
 		},
 		.dev		= &memory,
 		.fifo_size	= INT_FIFO_SIZE,
-- 
1.9.1

[PATCH v5 39/46] usb: gadget: epautoconf: remove ep and desc configuration from ep_matches()

[Robert Baldyga]

As function ep_matches() is used to match endpoint with usb descriptor it's
highly unintuitive that it modifies endpoint and descriptor structures fields.
This patch moves code configuring ep and desc from ep_matches() to
usb_ep_autoconfig_ss(), so now function ep_matches() does nothing more than
its name suggests.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/epautoconf.c | 66 +++++++++++++++++++++--------------------
 1 file changed, 34 insertions(+), 32 deletions(-)

diff --git a/drivers/usb/gadget/epautoconf.c b/drivers/usb/gadget/epautoconf.c
index 4f66e9d73..7bb28f1 100644
--- a/drivers/usb/gadget/epautoconf.c
+++ b/drivers/usb/gadget/epautoconf.c
@@ -82,13 +82,6 @@ ep_matches (
 
 	}
 
-	/*
-	 * If the protocol driver hasn't yet decided on wMaxPacketSize
-	 * and wants to know the maximum possible, provide the info.
-	 */
-	if (desc->wMaxPacketSize == 0)
-		desc->wMaxPacketSize = cpu_to_le16(ep->maxpacket_limit);
-
 	/* endpoint maxpacket size is an input parameter, except for bulk
 	 * where it's an output parameter representing the full speed limit.
 	 * the usb spec fixes high speed bulk maxpacket at 512 bytes.
@@ -119,31 +112,6 @@ ep_matches (
 
 	/* MATCH!! */
 
-	/* report address */
-	desc->bEndpointAddress &= USB_DIR_IN;
-	if (isdigit (ep->name [2])) {
-		u8	num = simple_strtoul (&ep->name [2], NULL, 10);
-		desc->bEndpointAddress |= num;
-	} else if (desc->bEndpointAddress & USB_DIR_IN) {
-		if (++gadget->in_epnum > 15)
-			return 0;
-		desc->bEndpointAddress = USB_DIR_IN | gadget->in_epnum;
-	} else {
-		if (++gadget->out_epnum > 15)
-			return 0;
-		desc->bEndpointAddress |= gadget->out_epnum;
-	}
-
-	/* report (variable) full speed bulk maxpacket */
-	if ((USB_ENDPOINT_XFER_BULK == type) && !ep_comp) {
-		int size = ep->maxpacket_limit;
-
-		/* min() doesn't work on bitfields with gcc-3.5 */
-		if (size > 64)
-			size = 64;
-		desc->wMaxPacketSize = cpu_to_le16(size);
-	}
-	ep->address = desc->bEndpointAddress;
 	return 1;
 }
 
@@ -280,6 +248,40 @@ struct usb_ep *usb_ep_autoconfig_ss(
 	/* Fail */
 	return NULL;
 found_ep:
+
+	/*
+	 * If the protocol driver hasn't yet decided on wMaxPacketSize
+	 * and wants to know the maximum possible, provide the info.
+	 */
+	if (desc->wMaxPacketSize == 0)
+		desc->wMaxPacketSize = cpu_to_le16(ep->maxpacket_limit);
+
+	/* report address */
+	desc->bEndpointAddress &= USB_DIR_IN;
+	if (isdigit(ep->name[2])) {
+		u8 num = simple_strtoul(&ep->name[2], NULL, 10);
+		desc->bEndpointAddress |= num;
+	} else if (desc->bEndpointAddress & USB_DIR_IN) {
+		if (++gadget->in_epnum > 15)
+			return 0;
+		desc->bEndpointAddress = USB_DIR_IN | gadget->in_epnum;
+	} else {
+		if (++gadget->out_epnum > 15)
+			return 0;
+		desc->bEndpointAddress |= gadget->out_epnum;
+	}
+
+	/* report (variable) full speed bulk maxpacket */
+	if ((type == USB_ENDPOINT_XFER_BULK) && !ep_comp) {
+		int size = ep->maxpacket_limit;
+
+		/* min() doesn't work on bitfields with gcc-3.5 */
+		if (size > 64)
+			size = 64;
+		desc->wMaxPacketSize = cpu_to_le16(size);
+	}
+
+	ep->address = desc->bEndpointAddress;
 	ep->desc = NULL;
 	ep->comp_desc = NULL;
 	ep->claimed = true;
-- 
1.9.1

[PATCH v5 39/46] usb: gadget: epautoconf: remove ep and desc configuration from ep_matches()

[Robert Baldyga]

As function ep_matches() is used to match endpoint with usb descriptor it's
highly unintuitive that it modifies endpoint and descriptor structures fields.
This patch moves code configuring ep and desc from ep_matches() to
usb_ep_autoconfig_ss(), so now function ep_matches() does nothing more than
its name suggests.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/epautoconf.c | 66 +++++++++++++++++++++--------------------
 1 file changed, 34 insertions(+), 32 deletions(-)

diff --git a/drivers/usb/gadget/epautoconf.c b/drivers/usb/gadget/epautoconf.c
index 4f66e9d73..7bb28f1 100644
--- a/drivers/usb/gadget/epautoconf.c
+++ b/drivers/usb/gadget/epautoconf.c
@@ -82,13 +82,6 @@ ep_matches (
 
 	}
 
-	/*
-	 * If the protocol driver hasn't yet decided on wMaxPacketSize
-	 * and wants to know the maximum possible, provide the info.
-	 */
-	if (desc->wMaxPacketSize == 0)
-		desc->wMaxPacketSize = cpu_to_le16(ep->maxpacket_limit);
-
 	/* endpoint maxpacket size is an input parameter, except for bulk
 	 * where it's an output parameter representing the full speed limit.
 	 * the usb spec fixes high speed bulk maxpacket at 512 bytes.
@@ -119,31 +112,6 @@ ep_matches (
 
 	/* MATCH!! */
 
-	/* report address */
-	desc->bEndpointAddress &= USB_DIR_IN;
-	if (isdigit (ep->name [2])) {
-		u8	num = simple_strtoul (&ep->name [2], NULL, 10);
-		desc->bEndpointAddress |= num;
-	} else if (desc->bEndpointAddress & USB_DIR_IN) {
-		if (++gadget->in_epnum > 15)
-			return 0;
-		desc->bEndpointAddress = USB_DIR_IN | gadget->in_epnum;
-	} else {
-		if (++gadget->out_epnum > 15)
-			return 0;
-		desc->bEndpointAddress |= gadget->out_epnum;
-	}
-
-	/* report (variable) full speed bulk maxpacket */
-	if ((USB_ENDPOINT_XFER_BULK == type) && !ep_comp) {
-		int size = ep->maxpacket_limit;
-
-		/* min() doesn't work on bitfields with gcc-3.5 */
-		if (size > 64)
-			size = 64;
-		desc->wMaxPacketSize = cpu_to_le16(size);
-	}
-	ep->address = desc->bEndpointAddress;
 	return 1;
 }
 
@@ -280,6 +248,40 @@ struct usb_ep *usb_ep_autoconfig_ss(
 	/* Fail */
 	return NULL;
 found_ep:
+
+	/*
+	 * If the protocol driver hasn't yet decided on wMaxPacketSize
+	 * and wants to know the maximum possible, provide the info.
+	 */
+	if (desc->wMaxPacketSize == 0)
+		desc->wMaxPacketSize = cpu_to_le16(ep->maxpacket_limit);
+
+	/* report address */
+	desc->bEndpointAddress &= USB_DIR_IN;
+	if (isdigit(ep->name[2])) {
+		u8 num = simple_strtoul(&ep->name[2], NULL, 10);
+		desc->bEndpointAddress |= num;
+	} else if (desc->bEndpointAddress & USB_DIR_IN) {
+		if (++gadget->in_epnum > 15)
+			return 0;
+		desc->bEndpointAddress = USB_DIR_IN | gadget->in_epnum;
+	} else {
+		if (++gadget->out_epnum > 15)
+			return 0;
+		desc->bEndpointAddress |= gadget->out_epnum;
+	}
+
+	/* report (variable) full speed bulk maxpacket */
+	if ((type == USB_ENDPOINT_XFER_BULK) && !ep_comp) {
+		int size = ep->maxpacket_limit;
+
+		/* min() doesn't work on bitfields with gcc-3.5 */
+		if (size > 64)
+			size = 64;
+		desc->wMaxPacketSize = cpu_to_le16(size);
+	}
+
+	ep->address = desc->bEndpointAddress;
 	ep->desc = NULL;
 	ep->comp_desc = NULL;
 	ep->claimed = true;
-- 
1.9.1

[PATCH v5 39/46] usb: gadget: epautoconf: remove ep and desc configuration from ep_matches()

[Robert Baldyga]

As function ep_matches() is used to match endpoint with usb descriptor it's
highly unintuitive that it modifies endpoint and descriptor structures fields.
This patch moves code configuring ep and desc from ep_matches() to
usb_ep_autoconfig_ss(), so now function ep_matches() does nothing more than
its name suggests.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/epautoconf.c | 66 +++++++++++++++++++++--------------------
 1 file changed, 34 insertions(+), 32 deletions(-)

diff --git a/drivers/usb/gadget/epautoconf.c b/drivers/usb/gadget/epautoconf.c
index 4f66e9d73..7bb28f1 100644
--- a/drivers/usb/gadget/epautoconf.c
+++ b/drivers/usb/gadget/epautoconf.c
@@ -82,13 +82,6 @@ ep_matches (
 
 	}
 
-	/*
-	 * If the protocol driver hasn't yet decided on wMaxPacketSize
-	 * and wants to know the maximum possible, provide the info.
-	 */
-	if (desc->wMaxPacketSize == 0)
-		desc->wMaxPacketSize = cpu_to_le16(ep->maxpacket_limit);
-
 	/* endpoint maxpacket size is an input parameter, except for bulk
 	 * where it's an output parameter representing the full speed limit.
 	 * the usb spec fixes high speed bulk maxpacket at 512 bytes.
@@ -119,31 +112,6 @@ ep_matches (
 
 	/* MATCH!! */
 
-	/* report address */
-	desc->bEndpointAddress &= USB_DIR_IN;
-	if (isdigit (ep->name [2])) {
-		u8	num = simple_strtoul (&ep->name [2], NULL, 10);
-		desc->bEndpointAddress |= num;
-	} else if (desc->bEndpointAddress & USB_DIR_IN) {
-		if (++gadget->in_epnum > 15)
-			return 0;
-		desc->bEndpointAddress = USB_DIR_IN | gadget->in_epnum;
-	} else {
-		if (++gadget->out_epnum > 15)
-			return 0;
-		desc->bEndpointAddress |= gadget->out_epnum;
-	}
-
-	/* report (variable) full speed bulk maxpacket */
-	if ((USB_ENDPOINT_XFER_BULK == type) && !ep_comp) {
-		int size = ep->maxpacket_limit;
-
-		/* min() doesn't work on bitfields with gcc-3.5 */
-		if (size > 64)
-			size = 64;
-		desc->wMaxPacketSize = cpu_to_le16(size);
-	}
-	ep->address = desc->bEndpointAddress;
 	return 1;
 }
 
@@ -280,6 +248,40 @@ struct usb_ep *usb_ep_autoconfig_ss(
 	/* Fail */
 	return NULL;
 found_ep:
+
+	/*
+	 * If the protocol driver hasn't yet decided on wMaxPacketSize
+	 * and wants to know the maximum possible, provide the info.
+	 */
+	if (desc->wMaxPacketSize == 0)
+		desc->wMaxPacketSize = cpu_to_le16(ep->maxpacket_limit);
+
+	/* report address */
+	desc->bEndpointAddress &= USB_DIR_IN;
+	if (isdigit(ep->name[2])) {
+		u8 num = simple_strtoul(&ep->name[2], NULL, 10);
+		desc->bEndpointAddress |= num;
+	} else if (desc->bEndpointAddress & USB_DIR_IN) {
+		if (++gadget->in_epnum > 15)
+			return 0;
+		desc->bEndpointAddress = USB_DIR_IN | gadget->in_epnum;
+	} else {
+		if (++gadget->out_epnum > 15)
+			return 0;
+		desc->bEndpointAddress |= gadget->out_epnum;
+	}
+
+	/* report (variable) full speed bulk maxpacket */
+	if ((type == USB_ENDPOINT_XFER_BULK) && !ep_comp) {
+		int size = ep->maxpacket_limit;
+
+		/* min() doesn't work on bitfields with gcc-3.5 */
+		if (size > 64)
+			size = 64;
+		desc->wMaxPacketSize = cpu_to_le16(size);
+	}
+
+	ep->address = desc->bEndpointAddress;
 	ep->desc = NULL;
 	ep->comp_desc = NULL;
 	ep->claimed = true;
-- 
1.9.1

[PATCH v5 40/46] usb: gadget: epautoconf: rework ep_matches() function

[Robert Baldyga]

Rework ep_matches() function to make it shorter and more readable.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/epautoconf.c | 87 +++++++++++++++++------------------------
 1 file changed, 35 insertions(+), 52 deletions(-)

diff --git a/drivers/usb/gadget/epautoconf.c b/drivers/usb/gadget/epautoconf.c
index 7bb28f1..4fa6f5d 100644
--- a/drivers/usb/gadget/epautoconf.c
+++ b/drivers/usb/gadget/epautoconf.c
@@ -30,16 +30,29 @@ ep_matches (
 	struct usb_ss_ep_comp_descriptor *ep_comp
 )
 {
-	u8		type;
-	u16		max;
-
-	int		num_req_streams = 0;
+	u8              type;
+	u16             max;
+	int             num_req_streams = 0;
 
 	/* endpoint already claimed? */
 	if (ep->claimed)
 		return 0;
 
 	type = usb_endpoint_type(desc);
+	max = 0x7ff & usb_endpoint_maxp(desc);
+
+	if (usb_endpoint_dir_in(desc) && !ep->caps.dir_in)
+		return 0;
+	else if (!ep->caps.dir_out)
+		return 0;
+
+	if (max > ep->maxpacket_limit)
+		return 0;
+
+	/* "high bandwidth" works only at high speed */
+	if (!gadget_is_dualspeed(gadget) && usb_endpoint_maxp(desc) & (3<<11))
+		return 0;
+
 	switch (type) {
 	case USB_ENDPOINT_XFER_CONTROL:
 		/* only support ep0 for portable CONTROL traffic */
@@ -47,66 +60,36 @@ ep_matches (
 	case USB_ENDPOINT_XFER_ISOC:
 		if (!ep->caps.type_iso)
 			return 0;
+		/* ISO:  limit 1023 bytes full speed,
+		 * 1024 high/super speed
+		 */
+		if (!gadget_is_dualspeed(gadget) && max > 1023)
+			return 0;
 		break;
 	case USB_ENDPOINT_XFER_BULK:
 		if (!ep->caps.type_bulk)
 			return 0;
+		if (ep_comp && gadget_is_superspeed(gadget)) {
+			/* Get the number of required streams from the
+			 * EP companion descriptor and see if the EP
+			 * matches it
+			 */
+			num_req_streams = ep_comp->bmAttributes & 0x1f;
+			if (num_req_streams > ep->max_streams)
+				return 0;
+		}
 		break;
 	case USB_ENDPOINT_XFER_INT:
-		/* bulk endpoints handle interrupt transfers,
+		/* Bulk endpoints handle interrupt transfers,
 		 * except the toggle-quirky iso-synch kind
 		 */
 		if (!ep->caps.type_int && !ep->caps.type_bulk)
 			return 0;
-		break;
-	}
-
-	if (usb_endpoint_dir_in(desc)) {
-		if (!ep->caps.dir_in)
-			return 0;
-	} else {
-		if (!ep->caps.dir_out)
-			return 0;
-	}
-
-	/*
-	 * Get the number of required streams from the EP companion
-	 * descriptor and see if the EP matches it
-	 */
-	if (usb_endpoint_xfer_bulk(desc)) {
-		if (ep_comp && gadget->max_speed >= USB_SPEED_SUPER) {
-			num_req_streams = ep_comp->bmAttributes & 0x1f;
-			if (num_req_streams > ep->max_streams)
-				return 0;
-		}
-
-	}
-
-	/* endpoint maxpacket size is an input parameter, except for bulk
-	 * where it's an output parameter representing the full speed limit.
-	 * the usb spec fixes high speed bulk maxpacket at 512 bytes.
-	 */
-	max = 0x7ff & usb_endpoint_maxp(desc);
-	switch (type) {
-	case USB_ENDPOINT_XFER_INT:
-		/* INT:  limit 64 bytes full speed, 1024 high/super speed */
+		/* INT:  limit 64 bytes full speed,
+		 * 1024 high/super speed
+		 */
 		if (!gadget_is_dualspeed(gadget) && max > 64)
 			return 0;
-		/* FALLTHROUGH */
-
-	case USB_ENDPOINT_XFER_ISOC:
-		/* ISO:  limit 1023 bytes full speed, 1024 high/super speed */
-		if (ep->maxpacket_limit < max)
-			return 0;
-		if (!gadget_is_dualspeed(gadget) && max > 1023)
-			return 0;
-
-		/* BOTH:  "high bandwidth" works only at high speed */
-		if ((desc->wMaxPacketSize & cpu_to_le16(3<<11))) {
-			if (!gadget_is_dualspeed(gadget))
-				return 0;
-			/* configure your hardware with enough buffering!! */
-		}
 		break;
 	}
 
-- 
1.9.1

[PATCH v5 40/46] usb: gadget: epautoconf: rework ep_matches() function

[Robert Baldyga]

Rework ep_matches() function to make it shorter and more readable.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/epautoconf.c | 87 +++++++++++++++++------------------------
 1 file changed, 35 insertions(+), 52 deletions(-)

diff --git a/drivers/usb/gadget/epautoconf.c b/drivers/usb/gadget/epautoconf.c
index 7bb28f1..4fa6f5d 100644
--- a/drivers/usb/gadget/epautoconf.c
+++ b/drivers/usb/gadget/epautoconf.c
@@ -30,16 +30,29 @@ ep_matches (
 	struct usb_ss_ep_comp_descriptor *ep_comp
 )
 {
-	u8		type;
-	u16		max;
-
-	int		num_req_streams = 0;
+	u8              type;
+	u16             max;
+	int             num_req_streams = 0;
 
 	/* endpoint already claimed? */
 	if (ep->claimed)
 		return 0;
 
 	type = usb_endpoint_type(desc);
+	max = 0x7ff & usb_endpoint_maxp(desc);
+
+	if (usb_endpoint_dir_in(desc) && !ep->caps.dir_in)
+		return 0;
+	else if (!ep->caps.dir_out)
+		return 0;
+
+	if (max > ep->maxpacket_limit)
+		return 0;
+
+	/* "high bandwidth" works only at high speed */
+	if (!gadget_is_dualspeed(gadget) && usb_endpoint_maxp(desc) & (3<<11))
+		return 0;
+
 	switch (type) {
 	case USB_ENDPOINT_XFER_CONTROL:
 		/* only support ep0 for portable CONTROL traffic */
@@ -47,66 +60,36 @@ ep_matches (
 	case USB_ENDPOINT_XFER_ISOC:
 		if (!ep->caps.type_iso)
 			return 0;
+		/* ISO:  limit 1023 bytes full speed,
+		 * 1024 high/super speed
+		 */
+		if (!gadget_is_dualspeed(gadget) && max > 1023)
+			return 0;
 		break;
 	case USB_ENDPOINT_XFER_BULK:
 		if (!ep->caps.type_bulk)
 			return 0;
+		if (ep_comp && gadget_is_superspeed(gadget)) {
+			/* Get the number of required streams from the
+			 * EP companion descriptor and see if the EP
+			 * matches it
+			 */
+			num_req_streams = ep_comp->bmAttributes & 0x1f;
+			if (num_req_streams > ep->max_streams)
+				return 0;
+		}
 		break;
 	case USB_ENDPOINT_XFER_INT:
-		/* bulk endpoints handle interrupt transfers,
+		/* Bulk endpoints handle interrupt transfers,
 		 * except the toggle-quirky iso-synch kind
 		 */
 		if (!ep->caps.type_int && !ep->caps.type_bulk)
 			return 0;
-		break;
-	}
-
-	if (usb_endpoint_dir_in(desc)) {
-		if (!ep->caps.dir_in)
-			return 0;
-	} else {
-		if (!ep->caps.dir_out)
-			return 0;
-	}
-
-	/*
-	 * Get the number of required streams from the EP companion
-	 * descriptor and see if the EP matches it
-	 */
-	if (usb_endpoint_xfer_bulk(desc)) {
-		if (ep_comp && gadget->max_speed >= USB_SPEED_SUPER) {
-			num_req_streams = ep_comp->bmAttributes & 0x1f;
-			if (num_req_streams > ep->max_streams)
-				return 0;
-		}
-
-	}
-
-	/* endpoint maxpacket size is an input parameter, except for bulk
-	 * where it's an output parameter representing the full speed limit.
-	 * the usb spec fixes high speed bulk maxpacket at 512 bytes.
-	 */
-	max = 0x7ff & usb_endpoint_maxp(desc);
-	switch (type) {
-	case USB_ENDPOINT_XFER_INT:
-		/* INT:  limit 64 bytes full speed, 1024 high/super speed */
+		/* INT:  limit 64 bytes full speed,
+		 * 1024 high/super speed
+		 */
 		if (!gadget_is_dualspeed(gadget) && max > 64)
 			return 0;
-		/* FALLTHROUGH */
-
-	case USB_ENDPOINT_XFER_ISOC:
-		/* ISO:  limit 1023 bytes full speed, 1024 high/super speed */
-		if (ep->maxpacket_limit < max)
-			return 0;
-		if (!gadget_is_dualspeed(gadget) && max > 1023)
-			return 0;
-
-		/* BOTH:  "high bandwidth" works only at high speed */
-		if ((desc->wMaxPacketSize & cpu_to_le16(3<<11))) {
-			if (!gadget_is_dualspeed(gadget))
-				return 0;
-			/* configure your hardware with enough buffering!! */
-		}
 		break;
 	}
 
-- 
1.9.1

[PATCH v5 40/46] usb: gadget: epautoconf: rework ep_matches() function

[Robert Baldyga]

Rework ep_matches() function to make it shorter and more readable.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/epautoconf.c | 87 +++++++++++++++++------------------------
 1 file changed, 35 insertions(+), 52 deletions(-)

diff --git a/drivers/usb/gadget/epautoconf.c b/drivers/usb/gadget/epautoconf.c
index 7bb28f1..4fa6f5d 100644
--- a/drivers/usb/gadget/epautoconf.c
+++ b/drivers/usb/gadget/epautoconf.c
@@ -30,16 +30,29 @@ ep_matches (
 	struct usb_ss_ep_comp_descriptor *ep_comp
 )
 {
-	u8		type;
-	u16		max;
-
-	int		num_req_streams = 0;
+	u8              type;
+	u16             max;
+	int             num_req_streams = 0;
 
 	/* endpoint already claimed? */
 	if (ep->claimed)
 		return 0;
 
 	type = usb_endpoint_type(desc);
+	max = 0x7ff & usb_endpoint_maxp(desc);
+
+	if (usb_endpoint_dir_in(desc) && !ep->caps.dir_in)
+		return 0;
+	else if (!ep->caps.dir_out)
+		return 0;
+
+	if (max > ep->maxpacket_limit)
+		return 0;
+
+	/* "high bandwidth" works only at high speed */
+	if (!gadget_is_dualspeed(gadget) && usb_endpoint_maxp(desc) & (3<<11))
+		return 0;
+
 	switch (type) {
 	case USB_ENDPOINT_XFER_CONTROL:
 		/* only support ep0 for portable CONTROL traffic */
@@ -47,66 +60,36 @@ ep_matches (
 	case USB_ENDPOINT_XFER_ISOC:
 		if (!ep->caps.type_iso)
 			return 0;
+		/* ISO:  limit 1023 bytes full speed,
+		 * 1024 high/super speed
+		 */
+		if (!gadget_is_dualspeed(gadget) && max > 1023)
+			return 0;
 		break;
 	case USB_ENDPOINT_XFER_BULK:
 		if (!ep->caps.type_bulk)
 			return 0;
+		if (ep_comp && gadget_is_superspeed(gadget)) {
+			/* Get the number of required streams from the
+			 * EP companion descriptor and see if the EP
+			 * matches it
+			 */
+			num_req_streams = ep_comp->bmAttributes & 0x1f;
+			if (num_req_streams > ep->max_streams)
+				return 0;
+		}
 		break;
 	case USB_ENDPOINT_XFER_INT:
-		/* bulk endpoints handle interrupt transfers,
+		/* Bulk endpoints handle interrupt transfers,
 		 * except the toggle-quirky iso-synch kind
 		 */
 		if (!ep->caps.type_int && !ep->caps.type_bulk)
 			return 0;
-		break;
-	}
-
-	if (usb_endpoint_dir_in(desc)) {
-		if (!ep->caps.dir_in)
-			return 0;
-	} else {
-		if (!ep->caps.dir_out)
-			return 0;
-	}
-
-	/*
-	 * Get the number of required streams from the EP companion
-	 * descriptor and see if the EP matches it
-	 */
-	if (usb_endpoint_xfer_bulk(desc)) {
-		if (ep_comp && gadget->max_speed >= USB_SPEED_SUPER) {
-			num_req_streams = ep_comp->bmAttributes & 0x1f;
-			if (num_req_streams > ep->max_streams)
-				return 0;
-		}
-
-	}
-
-	/* endpoint maxpacket size is an input parameter, except for bulk
-	 * where it's an output parameter representing the full speed limit.
-	 * the usb spec fixes high speed bulk maxpacket at 512 bytes.
-	 */
-	max = 0x7ff & usb_endpoint_maxp(desc);
-	switch (type) {
-	case USB_ENDPOINT_XFER_INT:
-		/* INT:  limit 64 bytes full speed, 1024 high/super speed */
+		/* INT:  limit 64 bytes full speed,
+		 * 1024 high/super speed
+		 */
 		if (!gadget_is_dualspeed(gadget) && max > 64)
 			return 0;
-		/* FALLTHROUGH */
-
-	case USB_ENDPOINT_XFER_ISOC:
-		/* ISO:  limit 1023 bytes full speed, 1024 high/super speed */
-		if (ep->maxpacket_limit < max)
-			return 0;
-		if (!gadget_is_dualspeed(gadget) && max > 1023)
-			return 0;
-
-		/* BOTH:  "high bandwidth" works only at high speed */
-		if ((desc->wMaxPacketSize & cpu_to_le16(3<<11))) {
-			if (!gadget_is_dualspeed(gadget))
-				return 0;
-			/* configure your hardware with enough buffering!! */
-		}
 		break;
 	}
 
-- 
1.9.1

[PATCH v5 41/46] usb: gadget: add 'ep_match' callback to usb_gadget_ops

[Robert Baldyga]

Add callback that is called by epautoconf to allow UDC driver match the
best endpoint for specific descriptor. It's intended to supply mechanism
which allows to get rid of chip-specific endpoint matching code from
epautoconf.

If gadget has set 'ep_match' callback we prefer to call it first, and
if it fails to find matching endpoint, then we try to use default matching
algorithm.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/epautoconf.c | 6 ++++++
 include/linux/usb/gadget.h      | 3 +++
 2 files changed, 9 insertions(+)

diff --git a/drivers/usb/gadget/epautoconf.c b/drivers/usb/gadget/epautoconf.c
index 4fa6f5d..1b1fee0 100644
--- a/drivers/usb/gadget/epautoconf.c
+++ b/drivers/usb/gadget/epautoconf.c
@@ -165,6 +165,12 @@ struct usb_ep *usb_ep_autoconfig_ss(
 
 	type = desc->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK;
 
+	if (gadget->ops->match_ep) {
+		ep = gadget->ops->match_ep(gadget, desc, ep_comp);
+		if (ep)
+			goto found_ep;
+	}
+
 	/* First, apply chip-specific "best usage" knowledge.
 	 * This might make a good usb_gadget_ops hook ...
 	 */
diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h
index 82b5bcb..303214b 100644
--- a/include/linux/usb/gadget.h
+++ b/include/linux/usb/gadget.h
@@ -534,6 +534,9 @@ struct usb_gadget_ops {
 	int	(*udc_start)(struct usb_gadget *,
 			struct usb_gadget_driver *);
 	int	(*udc_stop)(struct usb_gadget *);
+	struct usb_ep *(*match_ep)(struct usb_gadget *,
+			struct usb_endpoint_descriptor *,
+			struct usb_ss_ep_comp_descriptor *);
 };
 
 /**
-- 
1.9.1

[PATCH v5 41/46] usb: gadget: add 'ep_match' callback to usb_gadget_ops

[Robert Baldyga]

Add callback that is called by epautoconf to allow UDC driver match the
best endpoint for specific descriptor. It's intended to supply mechanism
which allows to get rid of chip-specific endpoint matching code from
epautoconf.

If gadget has set 'ep_match' callback we prefer to call it first, and
if it fails to find matching endpoint, then we try to use default matching
algorithm.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/epautoconf.c | 6 ++++++
 include/linux/usb/gadget.h      | 3 +++
 2 files changed, 9 insertions(+)

diff --git a/drivers/usb/gadget/epautoconf.c b/drivers/usb/gadget/epautoconf.c
index 4fa6f5d..1b1fee0 100644
--- a/drivers/usb/gadget/epautoconf.c
+++ b/drivers/usb/gadget/epautoconf.c
@@ -165,6 +165,12 @@ struct usb_ep *usb_ep_autoconfig_ss(
 
 	type = desc->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK;
 
+	if (gadget->ops->match_ep) {
+		ep = gadget->ops->match_ep(gadget, desc, ep_comp);
+		if (ep)
+			goto found_ep;
+	}
+
 	/* First, apply chip-specific "best usage" knowledge.
 	 * This might make a good usb_gadget_ops hook ...
 	 */
diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h
index 82b5bcb..303214b 100644
--- a/include/linux/usb/gadget.h
+++ b/include/linux/usb/gadget.h
@@ -534,6 +534,9 @@ struct usb_gadget_ops {
 	int	(*udc_start)(struct usb_gadget *,
 			struct usb_gadget_driver *);
 	int	(*udc_stop)(struct usb_gadget *);
+	struct usb_ep *(*match_ep)(struct usb_gadget *,
+			struct usb_endpoint_descriptor *,
+			struct usb_ss_ep_comp_descriptor *);
 };
 
 /**
-- 
1.9.1

[PATCH v5 41/46] usb: gadget: add 'ep_match' callback to usb_gadget_ops

[Robert Baldyga]

Add callback that is called by epautoconf to allow UDC driver match the
best endpoint for specific descriptor. It's intended to supply mechanism
which allows to get rid of chip-specific endpoint matching code from
epautoconf.

If gadget has set 'ep_match' callback we prefer to call it first, and
if it fails to find matching endpoint, then we try to use default matching
algorithm.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/epautoconf.c | 6 ++++++
 include/linux/usb/gadget.h      | 3 +++
 2 files changed, 9 insertions(+)

diff --git a/drivers/usb/gadget/epautoconf.c b/drivers/usb/gadget/epautoconf.c
index 4fa6f5d..1b1fee0 100644
--- a/drivers/usb/gadget/epautoconf.c
+++ b/drivers/usb/gadget/epautoconf.c
@@ -165,6 +165,12 @@ struct usb_ep *usb_ep_autoconfig_ss(
 
 	type = desc->bmAttributes & USB_ENDPOINT_XFERTYPE_MASK;
 
+	if (gadget->ops->match_ep) {
+		ep = gadget->ops->match_ep(gadget, desc, ep_comp);
+		if (ep)
+			goto found_ep;
+	}
+
 	/* First, apply chip-specific "best usage" knowledge.
 	 * This might make a good usb_gadget_ops hook ...
 	 */
diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h
index 82b5bcb..303214b 100644
--- a/include/linux/usb/gadget.h
+++ b/include/linux/usb/gadget.h
@@ -534,6 +534,9 @@ struct usb_gadget_ops {
 	int	(*udc_start)(struct usb_gadget *,
 			struct usb_gadget_driver *);
 	int	(*udc_stop)(struct usb_gadget *);
+	struct usb_ep *(*match_ep)(struct usb_gadget *,
+			struct usb_endpoint_descriptor *,
+			struct usb_ss_ep_comp_descriptor *);
 };
 
 /**
-- 
1.9.1

[PATCH v5 42/46] usb: gadget: move ep_matches() from epautoconf to udc-core

[Robert Baldyga]

Move ep_matches() function to udc-core and rename it to
usb_gadget_ep_match_desc(). This function can be used by UDC drivers
in 'match_ep' callback to avoid writing lots of repetitive code.

Replace all calls of ep_matches() with usb_gadget_ep_match_desc().

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/epautoconf.c   | 95 +++++----------------------------------
 drivers/usb/gadget/udc/udc-core.c | 69 ++++++++++++++++++++++++++++
 include/linux/usb/gadget.h        |  8 ++++
 3 files changed, 88 insertions(+), 84 deletions(-)

diff --git a/drivers/usb/gadget/epautoconf.c b/drivers/usb/gadget/epautoconf.c
index 1b1fee0..3f0a380 100644
--- a/drivers/usb/gadget/epautoconf.c
+++ b/drivers/usb/gadget/epautoconf.c
@@ -22,82 +22,6 @@
 
 #include "gadget_chips.h"
 
-static int
-ep_matches (
-	struct usb_gadget		*gadget,
-	struct usb_ep			*ep,
-	struct usb_endpoint_descriptor	*desc,
-	struct usb_ss_ep_comp_descriptor *ep_comp
-)
-{
-	u8              type;
-	u16             max;
-	int             num_req_streams = 0;
-
-	/* endpoint already claimed? */
-	if (ep->claimed)
-		return 0;
-
-	type = usb_endpoint_type(desc);
-	max = 0x7ff & usb_endpoint_maxp(desc);
-
-	if (usb_endpoint_dir_in(desc) && !ep->caps.dir_in)
-		return 0;
-	else if (!ep->caps.dir_out)
-		return 0;
-
-	if (max > ep->maxpacket_limit)
-		return 0;
-
-	/* "high bandwidth" works only at high speed */
-	if (!gadget_is_dualspeed(gadget) && usb_endpoint_maxp(desc) & (3<<11))
-		return 0;
-
-	switch (type) {
-	case USB_ENDPOINT_XFER_CONTROL:
-		/* only support ep0 for portable CONTROL traffic */
-		return 0;
-	case USB_ENDPOINT_XFER_ISOC:
-		if (!ep->caps.type_iso)
-			return 0;
-		/* ISO:  limit 1023 bytes full speed,
-		 * 1024 high/super speed
-		 */
-		if (!gadget_is_dualspeed(gadget) && max > 1023)
-			return 0;
-		break;
-	case USB_ENDPOINT_XFER_BULK:
-		if (!ep->caps.type_bulk)
-			return 0;
-		if (ep_comp && gadget_is_superspeed(gadget)) {
-			/* Get the number of required streams from the
-			 * EP companion descriptor and see if the EP
-			 * matches it
-			 */
-			num_req_streams = ep_comp->bmAttributes & 0x1f;
-			if (num_req_streams > ep->max_streams)
-				return 0;
-		}
-		break;
-	case USB_ENDPOINT_XFER_INT:
-		/* Bulk endpoints handle interrupt transfers,
-		 * except the toggle-quirky iso-synch kind
-		 */
-		if (!ep->caps.type_int && !ep->caps.type_bulk)
-			return 0;
-		/* INT:  limit 64 bytes full speed,
-		 * 1024 high/super speed
-		 */
-		if (!gadget_is_dualspeed(gadget) && max > 64)
-			return 0;
-		break;
-	}
-
-	/* MATCH!! */
-
-	return 1;
-}
-
 static struct usb_ep *
 find_ep (struct usb_gadget *gadget, const char *name)
 {
@@ -180,10 +104,12 @@ struct usb_ep *usb_ep_autoconfig_ss(
 		if (type == USB_ENDPOINT_XFER_INT) {
 			/* ep-e, ep-f are PIO with only 64 byte fifos */
 			ep = find_ep(gadget, "ep-e");
-			if (ep && ep_matches(gadget, ep, desc, ep_comp))
+			if (ep && usb_gadget_ep_match_desc(gadget,
+					ep, desc, ep_comp))
 				goto found_ep;
 			ep = find_ep(gadget, "ep-f");
-			if (ep && ep_matches(gadget, ep, desc, ep_comp))
+			if (ep && usb_gadget_ep_match_desc(gadget,
+					ep, desc, ep_comp))
 				goto found_ep;
 		}
 
@@ -191,20 +117,21 @@ struct usb_ep *usb_ep_autoconfig_ss(
 		snprintf(name, sizeof(name), "ep%d%s", usb_endpoint_num(desc),
 				usb_endpoint_dir_in(desc) ? "in" : "out");
 		ep = find_ep(gadget, name);
-		if (ep && ep_matches(gadget, ep, desc, ep_comp))
+		if (ep && usb_gadget_ep_match_desc(gadget, ep, desc, ep_comp))
 			goto found_ep;
 	} else if (gadget_is_goku (gadget)) {
 		if (USB_ENDPOINT_XFER_INT == type) {
 			/* single buffering is enough */
 			ep = find_ep(gadget, "ep3-bulk");
-			if (ep && ep_matches(gadget, ep, desc, ep_comp))
+			if (ep && usb_gadget_ep_match_desc(gadget,
+					ep, desc, ep_comp))
 				goto found_ep;
 		} else if (USB_ENDPOINT_XFER_BULK == type
 				&& (USB_DIR_IN & desc->bEndpointAddress)) {
 			/* DMA may be available */
 			ep = find_ep(gadget, "ep2-bulk");
-			if (ep && ep_matches(gadget, ep, desc,
-					      ep_comp))
+			if (ep && usb_gadget_ep_match_desc(gadget,
+					ep, desc, ep_comp))
 				goto found_ep;
 		}
 
@@ -223,14 +150,14 @@ struct usb_ep *usb_ep_autoconfig_ss(
 				ep = find_ep(gadget, "ep2out");
 		} else
 			ep = NULL;
-		if (ep && ep_matches(gadget, ep, desc, ep_comp))
+		if (ep && usb_gadget_ep_match_desc(gadget, ep, desc, ep_comp))
 			goto found_ep;
 #endif
 	}
 
 	/* Second, look at endpoints until an unclaimed one looks usable */
 	list_for_each_entry (ep, &gadget->ep_list, ep_list) {
-		if (ep_matches(gadget, ep, desc, ep_comp))
+		if (usb_gadget_ep_match_desc(gadget, ep, desc, ep_comp))
 			goto found_ep;
 	}
 
diff --git a/drivers/usb/gadget/udc/udc-core.c b/drivers/usb/gadget/udc/udc-core.c
index 362ee8a..380ffbd 100644
--- a/drivers/usb/gadget/udc/udc-core.c
+++ b/drivers/usb/gadget/udc/udc-core.c
@@ -131,6 +131,75 @@ EXPORT_SYMBOL_GPL(usb_gadget_giveback_request);
 
 /* ------------------------------------------------------------------------- */
 
+int usb_gadget_ep_match_desc(struct usb_gadget *gadget,
+		struct usb_ep *ep, struct usb_endpoint_descriptor *desc,
+		struct usb_ss_ep_comp_descriptor *ep_comp)
+{
+	u8              type;
+	u16             max;
+	int             num_req_streams = 0;
+
+	/* endpoint already claimed? */
+	if (ep->claimed)
+		return 0;
+
+	type = usb_endpoint_type(desc);
+	max = 0x7ff & usb_endpoint_maxp(desc);
+
+	if (usb_endpoint_dir_in(desc) && !ep->caps.dir_in)
+		return 0;
+	else if (!ep->caps.dir_out)
+		return 0;
+
+	if (max > ep->maxpacket_limit)
+		return 0;
+
+	/* "high bandwidth" works only at high speed */
+	if (!gadget_is_dualspeed(gadget) && usb_endpoint_maxp(desc) & (3<<11))
+		return 0;
+
+	switch (type) {
+	case USB_ENDPOINT_XFER_CONTROL:
+		/* only support ep0 for portable CONTROL traffic */
+		return 0;
+	case USB_ENDPOINT_XFER_ISOC:
+		if (!ep->caps.type_iso)
+			return 0;
+		/* ISO:  limit 1023 bytes full speed, 1024 high/super speed */
+		if (!gadget_is_dualspeed(gadget) && max > 1023)
+			return 0;
+		break;
+	case USB_ENDPOINT_XFER_BULK:
+		if (!ep->caps.type_bulk)
+			return 0;
+		if (ep_comp && gadget_is_superspeed(gadget)) {
+			/* Get the number of required streams from the
+			 * EP companion descriptor and see if the EP
+			 * matches it
+			 */
+			num_req_streams = ep_comp->bmAttributes & 0x1f;
+			if (num_req_streams > ep->max_streams)
+				return 0;
+		}
+		break;
+	case USB_ENDPOINT_XFER_INT:
+		/* Bulk endpoints handle interrupt transfers,
+		 * except the toggle-quirky iso-synch kind
+		 */
+		if (!ep->caps.type_int && !ep->caps.type_bulk)
+			return 0;
+		/* INT:  limit 64 bytes full speed, 1024 high/super speed */
+		if (!gadget_is_dualspeed(gadget) && max > 64)
+			return 0;
+		break;
+	}
+
+	return 1;
+}
+EXPORT_SYMBOL_GPL(usb_gadget_ep_match_desc);
+
+/* ------------------------------------------------------------------------- */
+
 static void usb_gadget_state_work(struct work_struct *work)
 {
 	struct usb_gadget *gadget = work_to_gadget(work);
diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h
index 303214b..e04fd63 100644
--- a/include/linux/usb/gadget.h
+++ b/include/linux/usb/gadget.h
@@ -1204,6 +1204,14 @@ extern void usb_gadget_giveback_request(struct usb_ep *ep,
 
 /*-------------------------------------------------------------------------*/
 
+/* utility to check if endpoint caps match descriptor needs */
+
+extern int usb_gadget_ep_match_desc(struct usb_gadget *gadget,
+		struct usb_ep *ep, struct usb_endpoint_descriptor *desc,
+		struct usb_ss_ep_comp_descriptor *ep_comp);
+
+/*-------------------------------------------------------------------------*/
+
 /* utility to update vbus status for udc core, it may be scheduled */
 extern void usb_udc_vbus_handler(struct usb_gadget *gadget, bool status);
 
-- 
1.9.1

[PATCH v5 42/46] usb: gadget: move ep_matches() from epautoconf to udc-core

[Robert Baldyga]

Move ep_matches() function to udc-core and rename it to
usb_gadget_ep_match_desc(). This function can be used by UDC drivers
in 'match_ep' callback to avoid writing lots of repetitive code.

Replace all calls of ep_matches() with usb_gadget_ep_match_desc().

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/epautoconf.c   | 95 +++++----------------------------------
 drivers/usb/gadget/udc/udc-core.c | 69 ++++++++++++++++++++++++++++
 include/linux/usb/gadget.h        |  8 ++++
 3 files changed, 88 insertions(+), 84 deletions(-)

diff --git a/drivers/usb/gadget/epautoconf.c b/drivers/usb/gadget/epautoconf.c
index 1b1fee0..3f0a380 100644
--- a/drivers/usb/gadget/epautoconf.c
+++ b/drivers/usb/gadget/epautoconf.c
@@ -22,82 +22,6 @@
 
 #include "gadget_chips.h"
 
-static int
-ep_matches (
-	struct usb_gadget		*gadget,
-	struct usb_ep			*ep,
-	struct usb_endpoint_descriptor	*desc,
-	struct usb_ss_ep_comp_descriptor *ep_comp
-)
-{
-	u8              type;
-	u16             max;
-	int             num_req_streams = 0;
-
-	/* endpoint already claimed? */
-	if (ep->claimed)
-		return 0;
-
-	type = usb_endpoint_type(desc);
-	max = 0x7ff & usb_endpoint_maxp(desc);
-
-	if (usb_endpoint_dir_in(desc) && !ep->caps.dir_in)
-		return 0;
-	else if (!ep->caps.dir_out)
-		return 0;
-
-	if (max > ep->maxpacket_limit)
-		return 0;
-
-	/* "high bandwidth" works only at high speed */
-	if (!gadget_is_dualspeed(gadget) && usb_endpoint_maxp(desc) & (3<<11))
-		return 0;
-
-	switch (type) {
-	case USB_ENDPOINT_XFER_CONTROL:
-		/* only support ep0 for portable CONTROL traffic */
-		return 0;
-	case USB_ENDPOINT_XFER_ISOC:
-		if (!ep->caps.type_iso)
-			return 0;
-		/* ISO:  limit 1023 bytes full speed,
-		 * 1024 high/super speed
-		 */
-		if (!gadget_is_dualspeed(gadget) && max > 1023)
-			return 0;
-		break;
-	case USB_ENDPOINT_XFER_BULK:
-		if (!ep->caps.type_bulk)
-			return 0;
-		if (ep_comp && gadget_is_superspeed(gadget)) {
-			/* Get the number of required streams from the
-			 * EP companion descriptor and see if the EP
-			 * matches it
-			 */
-			num_req_streams = ep_comp->bmAttributes & 0x1f;
-			if (num_req_streams > ep->max_streams)
-				return 0;
-		}
-		break;
-	case USB_ENDPOINT_XFER_INT:
-		/* Bulk endpoints handle interrupt transfers,
-		 * except the toggle-quirky iso-synch kind
-		 */
-		if (!ep->caps.type_int && !ep->caps.type_bulk)
-			return 0;
-		/* INT:  limit 64 bytes full speed,
-		 * 1024 high/super speed
-		 */
-		if (!gadget_is_dualspeed(gadget) && max > 64)
-			return 0;
-		break;
-	}
-
-	/* MATCH!! */
-
-	return 1;
-}
-
 static struct usb_ep *
 find_ep (struct usb_gadget *gadget, const char *name)
 {
@@ -180,10 +104,12 @@ struct usb_ep *usb_ep_autoconfig_ss(
 		if (type == USB_ENDPOINT_XFER_INT) {
 			/* ep-e, ep-f are PIO with only 64 byte fifos */
 			ep = find_ep(gadget, "ep-e");
-			if (ep && ep_matches(gadget, ep, desc, ep_comp))
+			if (ep && usb_gadget_ep_match_desc(gadget,
+					ep, desc, ep_comp))
 				goto found_ep;
 			ep = find_ep(gadget, "ep-f");
-			if (ep && ep_matches(gadget, ep, desc, ep_comp))
+			if (ep && usb_gadget_ep_match_desc(gadget,
+					ep, desc, ep_comp))
 				goto found_ep;
 		}
 
@@ -191,20 +117,21 @@ struct usb_ep *usb_ep_autoconfig_ss(
 		snprintf(name, sizeof(name), "ep%d%s", usb_endpoint_num(desc),
 				usb_endpoint_dir_in(desc) ? "in" : "out");
 		ep = find_ep(gadget, name);
-		if (ep && ep_matches(gadget, ep, desc, ep_comp))
+		if (ep && usb_gadget_ep_match_desc(gadget, ep, desc, ep_comp))
 			goto found_ep;
 	} else if (gadget_is_goku (gadget)) {
 		if (USB_ENDPOINT_XFER_INT == type) {
 			/* single buffering is enough */
 			ep = find_ep(gadget, "ep3-bulk");
-			if (ep && ep_matches(gadget, ep, desc, ep_comp))
+			if (ep && usb_gadget_ep_match_desc(gadget,
+					ep, desc, ep_comp))
 				goto found_ep;
 		} else if (USB_ENDPOINT_XFER_BULK == type
 				&& (USB_DIR_IN & desc->bEndpointAddress)) {
 			/* DMA may be available */
 			ep = find_ep(gadget, "ep2-bulk");
-			if (ep && ep_matches(gadget, ep, desc,
-					      ep_comp))
+			if (ep && usb_gadget_ep_match_desc(gadget,
+					ep, desc, ep_comp))
 				goto found_ep;
 		}
 
@@ -223,14 +150,14 @@ struct usb_ep *usb_ep_autoconfig_ss(
 				ep = find_ep(gadget, "ep2out");
 		} else
 			ep = NULL;
-		if (ep && ep_matches(gadget, ep, desc, ep_comp))
+		if (ep && usb_gadget_ep_match_desc(gadget, ep, desc, ep_comp))
 			goto found_ep;
 #endif
 	}
 
 	/* Second, look at endpoints until an unclaimed one looks usable */
 	list_for_each_entry (ep, &gadget->ep_list, ep_list) {
-		if (ep_matches(gadget, ep, desc, ep_comp))
+		if (usb_gadget_ep_match_desc(gadget, ep, desc, ep_comp))
 			goto found_ep;
 	}
 
diff --git a/drivers/usb/gadget/udc/udc-core.c b/drivers/usb/gadget/udc/udc-core.c
index 362ee8a..380ffbd 100644
--- a/drivers/usb/gadget/udc/udc-core.c
+++ b/drivers/usb/gadget/udc/udc-core.c
@@ -131,6 +131,75 @@ EXPORT_SYMBOL_GPL(usb_gadget_giveback_request);
 
 /* ------------------------------------------------------------------------- */
 
+int usb_gadget_ep_match_desc(struct usb_gadget *gadget,
+		struct usb_ep *ep, struct usb_endpoint_descriptor *desc,
+		struct usb_ss_ep_comp_descriptor *ep_comp)
+{
+	u8              type;
+	u16             max;
+	int             num_req_streams = 0;
+
+	/* endpoint already claimed? */
+	if (ep->claimed)
+		return 0;
+
+	type = usb_endpoint_type(desc);
+	max = 0x7ff & usb_endpoint_maxp(desc);
+
+	if (usb_endpoint_dir_in(desc) && !ep->caps.dir_in)
+		return 0;
+	else if (!ep->caps.dir_out)
+		return 0;
+
+	if (max > ep->maxpacket_limit)
+		return 0;
+
+	/* "high bandwidth" works only at high speed */
+	if (!gadget_is_dualspeed(gadget) && usb_endpoint_maxp(desc) & (3<<11))
+		return 0;
+
+	switch (type) {
+	case USB_ENDPOINT_XFER_CONTROL:
+		/* only support ep0 for portable CONTROL traffic */
+		return 0;
+	case USB_ENDPOINT_XFER_ISOC:
+		if (!ep->caps.type_iso)
+			return 0;
+		/* ISO:  limit 1023 bytes full speed, 1024 high/super speed */
+		if (!gadget_is_dualspeed(gadget) && max > 1023)
+			return 0;
+		break;
+	case USB_ENDPOINT_XFER_BULK:
+		if (!ep->caps.type_bulk)
+			return 0;
+		if (ep_comp && gadget_is_superspeed(gadget)) {
+			/* Get the number of required streams from the
+			 * EP companion descriptor and see if the EP
+			 * matches it
+			 */
+			num_req_streams = ep_comp->bmAttributes & 0x1f;
+			if (num_req_streams > ep->max_streams)
+				return 0;
+		}
+		break;
+	case USB_ENDPOINT_XFER_INT:
+		/* Bulk endpoints handle interrupt transfers,
+		 * except the toggle-quirky iso-synch kind
+		 */
+		if (!ep->caps.type_int && !ep->caps.type_bulk)
+			return 0;
+		/* INT:  limit 64 bytes full speed, 1024 high/super speed */
+		if (!gadget_is_dualspeed(gadget) && max > 64)
+			return 0;
+		break;
+	}
+
+	return 1;
+}
+EXPORT_SYMBOL_GPL(usb_gadget_ep_match_desc);
+
+/* ------------------------------------------------------------------------- */
+
 static void usb_gadget_state_work(struct work_struct *work)
 {
 	struct usb_gadget *gadget = work_to_gadget(work);
diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h
index 303214b..e04fd63 100644
--- a/include/linux/usb/gadget.h
+++ b/include/linux/usb/gadget.h
@@ -1204,6 +1204,14 @@ extern void usb_gadget_giveback_request(struct usb_ep *ep,
 
 /*-------------------------------------------------------------------------*/
 
+/* utility to check if endpoint caps match descriptor needs */
+
+extern int usb_gadget_ep_match_desc(struct usb_gadget *gadget,
+		struct usb_ep *ep, struct usb_endpoint_descriptor *desc,
+		struct usb_ss_ep_comp_descriptor *ep_comp);
+
+/*-------------------------------------------------------------------------*/
+
 /* utility to update vbus status for udc core, it may be scheduled */
 extern void usb_udc_vbus_handler(struct usb_gadget *gadget, bool status);
 
-- 
1.9.1

[PATCH v5 42/46] usb: gadget: move ep_matches() from epautoconf to udc-core

[Robert Baldyga]

Move ep_matches() function to udc-core and rename it to
usb_gadget_ep_match_desc(). This function can be used by UDC drivers
in 'match_ep' callback to avoid writing lots of repetitive code.

Replace all calls of ep_matches() with usb_gadget_ep_match_desc().

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/epautoconf.c   | 95 +++++----------------------------------
 drivers/usb/gadget/udc/udc-core.c | 69 ++++++++++++++++++++++++++++
 include/linux/usb/gadget.h        |  8 ++++
 3 files changed, 88 insertions(+), 84 deletions(-)

diff --git a/drivers/usb/gadget/epautoconf.c b/drivers/usb/gadget/epautoconf.c
index 1b1fee0..3f0a380 100644
--- a/drivers/usb/gadget/epautoconf.c
+++ b/drivers/usb/gadget/epautoconf.c
@@ -22,82 +22,6 @@
 
 #include "gadget_chips.h"
 
-static int
-ep_matches (
-	struct usb_gadget		*gadget,
-	struct usb_ep			*ep,
-	struct usb_endpoint_descriptor	*desc,
-	struct usb_ss_ep_comp_descriptor *ep_comp
-)
-{
-	u8              type;
-	u16             max;
-	int             num_req_streams = 0;
-
-	/* endpoint already claimed? */
-	if (ep->claimed)
-		return 0;
-
-	type = usb_endpoint_type(desc);
-	max = 0x7ff & usb_endpoint_maxp(desc);
-
-	if (usb_endpoint_dir_in(desc) && !ep->caps.dir_in)
-		return 0;
-	else if (!ep->caps.dir_out)
-		return 0;
-
-	if (max > ep->maxpacket_limit)
-		return 0;
-
-	/* "high bandwidth" works only at high speed */
-	if (!gadget_is_dualspeed(gadget) && usb_endpoint_maxp(desc) & (3<<11))
-		return 0;
-
-	switch (type) {
-	case USB_ENDPOINT_XFER_CONTROL:
-		/* only support ep0 for portable CONTROL traffic */
-		return 0;
-	case USB_ENDPOINT_XFER_ISOC:
-		if (!ep->caps.type_iso)
-			return 0;
-		/* ISO:  limit 1023 bytes full speed,
-		 * 1024 high/super speed
-		 */
-		if (!gadget_is_dualspeed(gadget) && max > 1023)
-			return 0;
-		break;
-	case USB_ENDPOINT_XFER_BULK:
-		if (!ep->caps.type_bulk)
-			return 0;
-		if (ep_comp && gadget_is_superspeed(gadget)) {
-			/* Get the number of required streams from the
-			 * EP companion descriptor and see if the EP
-			 * matches it
-			 */
-			num_req_streams = ep_comp->bmAttributes & 0x1f;
-			if (num_req_streams > ep->max_streams)
-				return 0;
-		}
-		break;
-	case USB_ENDPOINT_XFER_INT:
-		/* Bulk endpoints handle interrupt transfers,
-		 * except the toggle-quirky iso-synch kind
-		 */
-		if (!ep->caps.type_int && !ep->caps.type_bulk)
-			return 0;
-		/* INT:  limit 64 bytes full speed,
-		 * 1024 high/super speed
-		 */
-		if (!gadget_is_dualspeed(gadget) && max > 64)
-			return 0;
-		break;
-	}
-
-	/* MATCH!! */
-
-	return 1;
-}
-
 static struct usb_ep *
 find_ep (struct usb_gadget *gadget, const char *name)
 {
@@ -180,10 +104,12 @@ struct usb_ep *usb_ep_autoconfig_ss(
 		if (type == USB_ENDPOINT_XFER_INT) {
 			/* ep-e, ep-f are PIO with only 64 byte fifos */
 			ep = find_ep(gadget, "ep-e");
-			if (ep && ep_matches(gadget, ep, desc, ep_comp))
+			if (ep && usb_gadget_ep_match_desc(gadget,
+					ep, desc, ep_comp))
 				goto found_ep;
 			ep = find_ep(gadget, "ep-f");
-			if (ep && ep_matches(gadget, ep, desc, ep_comp))
+			if (ep && usb_gadget_ep_match_desc(gadget,
+					ep, desc, ep_comp))
 				goto found_ep;
 		}
 
@@ -191,20 +117,21 @@ struct usb_ep *usb_ep_autoconfig_ss(
 		snprintf(name, sizeof(name), "ep%d%s", usb_endpoint_num(desc),
 				usb_endpoint_dir_in(desc) ? "in" : "out");
 		ep = find_ep(gadget, name);
-		if (ep && ep_matches(gadget, ep, desc, ep_comp))
+		if (ep && usb_gadget_ep_match_desc(gadget, ep, desc, ep_comp))
 			goto found_ep;
 	} else if (gadget_is_goku (gadget)) {
 		if (USB_ENDPOINT_XFER_INT == type) {
 			/* single buffering is enough */
 			ep = find_ep(gadget, "ep3-bulk");
-			if (ep && ep_matches(gadget, ep, desc, ep_comp))
+			if (ep && usb_gadget_ep_match_desc(gadget,
+					ep, desc, ep_comp))
 				goto found_ep;
 		} else if (USB_ENDPOINT_XFER_BULK == type
 				&& (USB_DIR_IN & desc->bEndpointAddress)) {
 			/* DMA may be available */
 			ep = find_ep(gadget, "ep2-bulk");
-			if (ep && ep_matches(gadget, ep, desc,
-					      ep_comp))
+			if (ep && usb_gadget_ep_match_desc(gadget,
+					ep, desc, ep_comp))
 				goto found_ep;
 		}
 
@@ -223,14 +150,14 @@ struct usb_ep *usb_ep_autoconfig_ss(
 				ep = find_ep(gadget, "ep2out");
 		} else
 			ep = NULL;
-		if (ep && ep_matches(gadget, ep, desc, ep_comp))
+		if (ep && usb_gadget_ep_match_desc(gadget, ep, desc, ep_comp))
 			goto found_ep;
 #endif
 	}
 
 	/* Second, look at endpoints until an unclaimed one looks usable */
 	list_for_each_entry (ep, &gadget->ep_list, ep_list) {
-		if (ep_matches(gadget, ep, desc, ep_comp))
+		if (usb_gadget_ep_match_desc(gadget, ep, desc, ep_comp))
 			goto found_ep;
 	}
 
diff --git a/drivers/usb/gadget/udc/udc-core.c b/drivers/usb/gadget/udc/udc-core.c
index 362ee8a..380ffbd 100644
--- a/drivers/usb/gadget/udc/udc-core.c
+++ b/drivers/usb/gadget/udc/udc-core.c
@@ -131,6 +131,75 @@ EXPORT_SYMBOL_GPL(usb_gadget_giveback_request);
 
 /* ------------------------------------------------------------------------- */
 
+int usb_gadget_ep_match_desc(struct usb_gadget *gadget,
+		struct usb_ep *ep, struct usb_endpoint_descriptor *desc,
+		struct usb_ss_ep_comp_descriptor *ep_comp)
+{
+	u8              type;
+	u16             max;
+	int             num_req_streams = 0;
+
+	/* endpoint already claimed? */
+	if (ep->claimed)
+		return 0;
+
+	type = usb_endpoint_type(desc);
+	max = 0x7ff & usb_endpoint_maxp(desc);
+
+	if (usb_endpoint_dir_in(desc) && !ep->caps.dir_in)
+		return 0;
+	else if (!ep->caps.dir_out)
+		return 0;
+
+	if (max > ep->maxpacket_limit)
+		return 0;
+
+	/* "high bandwidth" works only at high speed */
+	if (!gadget_is_dualspeed(gadget) && usb_endpoint_maxp(desc) & (3<<11))
+		return 0;
+
+	switch (type) {
+	case USB_ENDPOINT_XFER_CONTROL:
+		/* only support ep0 for portable CONTROL traffic */
+		return 0;
+	case USB_ENDPOINT_XFER_ISOC:
+		if (!ep->caps.type_iso)
+			return 0;
+		/* ISO:  limit 1023 bytes full speed, 1024 high/super speed */
+		if (!gadget_is_dualspeed(gadget) && max > 1023)
+			return 0;
+		break;
+	case USB_ENDPOINT_XFER_BULK:
+		if (!ep->caps.type_bulk)
+			return 0;
+		if (ep_comp && gadget_is_superspeed(gadget)) {
+			/* Get the number of required streams from the
+			 * EP companion descriptor and see if the EP
+			 * matches it
+			 */
+			num_req_streams = ep_comp->bmAttributes & 0x1f;
+			if (num_req_streams > ep->max_streams)
+				return 0;
+		}
+		break;
+	case USB_ENDPOINT_XFER_INT:
+		/* Bulk endpoints handle interrupt transfers,
+		 * except the toggle-quirky iso-synch kind
+		 */
+		if (!ep->caps.type_int && !ep->caps.type_bulk)
+			return 0;
+		/* INT:  limit 64 bytes full speed, 1024 high/super speed */
+		if (!gadget_is_dualspeed(gadget) && max > 64)
+			return 0;
+		break;
+	}
+
+	return 1;
+}
+EXPORT_SYMBOL_GPL(usb_gadget_ep_match_desc);
+
+/* ------------------------------------------------------------------------- */
+
 static void usb_gadget_state_work(struct work_struct *work)
 {
 	struct usb_gadget *gadget = work_to_gadget(work);
diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h
index 303214b..e04fd63 100644
--- a/include/linux/usb/gadget.h
+++ b/include/linux/usb/gadget.h
@@ -1204,6 +1204,14 @@ extern void usb_gadget_giveback_request(struct usb_ep *ep,
 
 /*-------------------------------------------------------------------------*/
 
+/* utility to check if endpoint caps match descriptor needs */
+
+extern int usb_gadget_ep_match_desc(struct usb_gadget *gadget,
+		struct usb_ep *ep, struct usb_endpoint_descriptor *desc,
+		struct usb_ss_ep_comp_descriptor *ep_comp);
+
+/*-------------------------------------------------------------------------*/
+
 /* utility to update vbus status for udc core, it may be scheduled */
 extern void usb_udc_vbus_handler(struct usb_gadget *gadget, bool status);
 
-- 
1.9.1

[PATCH v5 43/46] usb: gadget: move find_ep() from epautoconf to gadget.h

[Robert Baldyga]

Move find_ep() function to gadget.h, rename it to gadget_find_ep_by_name()
and make it static inline. It can be used in UDC drivers, especially in
'match_ep' callback after moving chip-specific endpoint matching logic from
epautoconf to UDC drivers.

Replace all calls of find_ep() function with gadget_find_ep_by_name().

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/epautoconf.c | 30 +++++++++---------------------
 include/linux/usb/gadget.h      | 18 ++++++++++++++++++
 2 files changed, 27 insertions(+), 21 deletions(-)

diff --git a/drivers/usb/gadget/epautoconf.c b/drivers/usb/gadget/epautoconf.c
index 3f0a380..cc0b084 100644
--- a/drivers/usb/gadget/epautoconf.c
+++ b/drivers/usb/gadget/epautoconf.c
@@ -22,18 +22,6 @@
 
 #include "gadget_chips.h"
 
-static struct usb_ep *
-find_ep (struct usb_gadget *gadget, const char *name)
-{
-	struct usb_ep	*ep;
-
-	list_for_each_entry (ep, &gadget->ep_list, ep_list) {
-		if (0 == strcmp (ep->name, name))
-			return ep;
-	}
-	return NULL;
-}
-
 /**
  * usb_ep_autoconfig_ss() - choose an endpoint matching the ep
  * descriptor and ep companion descriptor
@@ -103,11 +91,11 @@ struct usb_ep *usb_ep_autoconfig_ss(
 
 		if (type == USB_ENDPOINT_XFER_INT) {
 			/* ep-e, ep-f are PIO with only 64 byte fifos */
-			ep = find_ep(gadget, "ep-e");
+			ep = gadget_find_ep_by_name(gadget, "ep-e");
 			if (ep && usb_gadget_ep_match_desc(gadget,
 					ep, desc, ep_comp))
 				goto found_ep;
-			ep = find_ep(gadget, "ep-f");
+			ep = gadget_find_ep_by_name(gadget, "ep-f");
 			if (ep && usb_gadget_ep_match_desc(gadget,
 					ep, desc, ep_comp))
 				goto found_ep;
@@ -116,20 +104,20 @@ struct usb_ep *usb_ep_autoconfig_ss(
 		/* USB3380: use same address for usb and hardware endpoints */
 		snprintf(name, sizeof(name), "ep%d%s", usb_endpoint_num(desc),
 				usb_endpoint_dir_in(desc) ? "in" : "out");
-		ep = find_ep(gadget, name);
+		ep = gadget_find_ep_by_name(gadget, name);
 		if (ep && usb_gadget_ep_match_desc(gadget, ep, desc, ep_comp))
 			goto found_ep;
 	} else if (gadget_is_goku (gadget)) {
 		if (USB_ENDPOINT_XFER_INT == type) {
 			/* single buffering is enough */
-			ep = find_ep(gadget, "ep3-bulk");
+			ep = gadget_find_ep_by_name(gadget, "ep3-bulk");
 			if (ep && usb_gadget_ep_match_desc(gadget,
 					ep, desc, ep_comp))
 				goto found_ep;
 		} else if (USB_ENDPOINT_XFER_BULK == type
 				&& (USB_DIR_IN & desc->bEndpointAddress)) {
 			/* DMA may be available */
-			ep = find_ep(gadget, "ep2-bulk");
+			ep = gadget_find_ep_by_name(gadget, "ep2-bulk");
 			if (ep && usb_gadget_ep_match_desc(gadget,
 					ep, desc, ep_comp))
 				goto found_ep;
@@ -140,14 +128,14 @@ struct usb_ep *usb_ep_autoconfig_ss(
 		if ((USB_ENDPOINT_XFER_BULK == type) ||
 		    (USB_ENDPOINT_XFER_ISOC == type)) {
 			if (USB_DIR_IN & desc->bEndpointAddress)
-				ep = find_ep (gadget, "ep5in");
+				ep = gadget_find_ep_by_name(gadget, "ep5in");
 			else
-				ep = find_ep (gadget, "ep6out");
+				ep = gadget_find_ep_by_name(gadget, "ep6out");
 		} else if (USB_ENDPOINT_XFER_INT == type) {
 			if (USB_DIR_IN & desc->bEndpointAddress)
-				ep = find_ep(gadget, "ep1in");
+				ep = gadget_find_ep_by_name(gadget, "ep1in");
 			else
-				ep = find_ep(gadget, "ep2out");
+				ep = gadget_find_ep_by_name(gadget, "ep2out");
 		} else
 			ep = NULL;
 		if (ep && usb_gadget_ep_match_desc(gadget, ep, desc, ep_comp))
diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h
index e04fd63..6a413ab 100644
--- a/include/linux/usb/gadget.h
+++ b/include/linux/usb/gadget.h
@@ -639,6 +639,24 @@ static inline struct usb_gadget *dev_to_usb_gadget(struct device *dev)
 #define gadget_for_each_ep(tmp, gadget) \
 	list_for_each_entry(tmp, &(gadget)->ep_list, ep_list)
 
+/**
+ * gadget_find_ep_by_name - returns ep whose name is the same as sting passed
+ *	in second parameter or NULL if searched endpoint not found
+ * @g: controller to check for quirk
+ * @name: name of searched endpoint
+ */
+static inline struct usb_ep *
+gadget_find_ep_by_name(struct usb_gadget *g, const char *name)
+{
+	struct usb_ep *ep;
+
+	gadget_for_each_ep(ep, g) {
+		if (!strcmp(ep->name, name))
+			return ep;
+	}
+
+	return NULL;
+}
 
 /**
  * usb_ep_align_maybe - returns @len aligned to ep's maxpacketsize if gadget
-- 
1.9.1

[PATCH v5 43/46] usb: gadget: move find_ep() from epautoconf to gadget.h

[Robert Baldyga]

Move find_ep() function to gadget.h, rename it to gadget_find_ep_by_name()
and make it static inline. It can be used in UDC drivers, especially in
'match_ep' callback after moving chip-specific endpoint matching logic from
epautoconf to UDC drivers.

Replace all calls of find_ep() function with gadget_find_ep_by_name().

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/epautoconf.c | 30 +++++++++---------------------
 include/linux/usb/gadget.h      | 18 ++++++++++++++++++
 2 files changed, 27 insertions(+), 21 deletions(-)

diff --git a/drivers/usb/gadget/epautoconf.c b/drivers/usb/gadget/epautoconf.c
index 3f0a380..cc0b084 100644
--- a/drivers/usb/gadget/epautoconf.c
+++ b/drivers/usb/gadget/epautoconf.c
@@ -22,18 +22,6 @@
 
 #include "gadget_chips.h"
 
-static struct usb_ep *
-find_ep (struct usb_gadget *gadget, const char *name)
-{
-	struct usb_ep	*ep;
-
-	list_for_each_entry (ep, &gadget->ep_list, ep_list) {
-		if (0 == strcmp (ep->name, name))
-			return ep;
-	}
-	return NULL;
-}
-
 /**
  * usb_ep_autoconfig_ss() - choose an endpoint matching the ep
  * descriptor and ep companion descriptor
@@ -103,11 +91,11 @@ struct usb_ep *usb_ep_autoconfig_ss(
 
 		if (type == USB_ENDPOINT_XFER_INT) {
 			/* ep-e, ep-f are PIO with only 64 byte fifos */
-			ep = find_ep(gadget, "ep-e");
+			ep = gadget_find_ep_by_name(gadget, "ep-e");
 			if (ep && usb_gadget_ep_match_desc(gadget,
 					ep, desc, ep_comp))
 				goto found_ep;
-			ep = find_ep(gadget, "ep-f");
+			ep = gadget_find_ep_by_name(gadget, "ep-f");
 			if (ep && usb_gadget_ep_match_desc(gadget,
 					ep, desc, ep_comp))
 				goto found_ep;
@@ -116,20 +104,20 @@ struct usb_ep *usb_ep_autoconfig_ss(
 		/* USB3380: use same address for usb and hardware endpoints */
 		snprintf(name, sizeof(name), "ep%d%s", usb_endpoint_num(desc),
 				usb_endpoint_dir_in(desc) ? "in" : "out");
-		ep = find_ep(gadget, name);
+		ep = gadget_find_ep_by_name(gadget, name);
 		if (ep && usb_gadget_ep_match_desc(gadget, ep, desc, ep_comp))
 			goto found_ep;
 	} else if (gadget_is_goku (gadget)) {
 		if (USB_ENDPOINT_XFER_INT == type) {
 			/* single buffering is enough */
-			ep = find_ep(gadget, "ep3-bulk");
+			ep = gadget_find_ep_by_name(gadget, "ep3-bulk");
 			if (ep && usb_gadget_ep_match_desc(gadget,
 					ep, desc, ep_comp))
 				goto found_ep;
 		} else if (USB_ENDPOINT_XFER_BULK == type
 				&& (USB_DIR_IN & desc->bEndpointAddress)) {
 			/* DMA may be available */
-			ep = find_ep(gadget, "ep2-bulk");
+			ep = gadget_find_ep_by_name(gadget, "ep2-bulk");
 			if (ep && usb_gadget_ep_match_desc(gadget,
 					ep, desc, ep_comp))
 				goto found_ep;
@@ -140,14 +128,14 @@ struct usb_ep *usb_ep_autoconfig_ss(
 		if ((USB_ENDPOINT_XFER_BULK == type) ||
 		    (USB_ENDPOINT_XFER_ISOC == type)) {
 			if (USB_DIR_IN & desc->bEndpointAddress)
-				ep = find_ep (gadget, "ep5in");
+				ep = gadget_find_ep_by_name(gadget, "ep5in");
 			else
-				ep = find_ep (gadget, "ep6out");
+				ep = gadget_find_ep_by_name(gadget, "ep6out");
 		} else if (USB_ENDPOINT_XFER_INT == type) {
 			if (USB_DIR_IN & desc->bEndpointAddress)
-				ep = find_ep(gadget, "ep1in");
+				ep = gadget_find_ep_by_name(gadget, "ep1in");
 			else
-				ep = find_ep(gadget, "ep2out");
+				ep = gadget_find_ep_by_name(gadget, "ep2out");
 		} else
 			ep = NULL;
 		if (ep && usb_gadget_ep_match_desc(gadget, ep, desc, ep_comp))
diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h
index e04fd63..6a413ab 100644
--- a/include/linux/usb/gadget.h
+++ b/include/linux/usb/gadget.h
@@ -639,6 +639,24 @@ static inline struct usb_gadget *dev_to_usb_gadget(struct device *dev)
 #define gadget_for_each_ep(tmp, gadget) \
 	list_for_each_entry(tmp, &(gadget)->ep_list, ep_list)
 
+/**
+ * gadget_find_ep_by_name - returns ep whose name is the same as sting passed
+ *	in second parameter or NULL if searched endpoint not found
+ * @g: controller to check for quirk
+ * @name: name of searched endpoint
+ */
+static inline struct usb_ep *
+gadget_find_ep_by_name(struct usb_gadget *g, const char *name)
+{
+	struct usb_ep *ep;
+
+	gadget_for_each_ep(ep, g) {
+		if (!strcmp(ep->name, name))
+			return ep;
+	}
+
+	return NULL;
+}
 
 /**
  * usb_ep_align_maybe - returns @len aligned to ep's maxpacketsize if gadget
-- 
1.9.1

[PATCH v5 43/46] usb: gadget: move find_ep() from epautoconf to gadget.h

[Robert Baldyga]

Move find_ep() function to gadget.h, rename it to gadget_find_ep_by_name()
and make it static inline. It can be used in UDC drivers, especially in
'match_ep' callback after moving chip-specific endpoint matching logic from
epautoconf to UDC drivers.

Replace all calls of find_ep() function with gadget_find_ep_by_name().

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/epautoconf.c | 30 +++++++++---------------------
 include/linux/usb/gadget.h      | 18 ++++++++++++++++++
 2 files changed, 27 insertions(+), 21 deletions(-)

diff --git a/drivers/usb/gadget/epautoconf.c b/drivers/usb/gadget/epautoconf.c
index 3f0a380..cc0b084 100644
--- a/drivers/usb/gadget/epautoconf.c
+++ b/drivers/usb/gadget/epautoconf.c
@@ -22,18 +22,6 @@
 
 #include "gadget_chips.h"
 
-static struct usb_ep *
-find_ep (struct usb_gadget *gadget, const char *name)
-{
-	struct usb_ep	*ep;
-
-	list_for_each_entry (ep, &gadget->ep_list, ep_list) {
-		if (0 == strcmp (ep->name, name))
-			return ep;
-	}
-	return NULL;
-}
-
 /**
  * usb_ep_autoconfig_ss() - choose an endpoint matching the ep
  * descriptor and ep companion descriptor
@@ -103,11 +91,11 @@ struct usb_ep *usb_ep_autoconfig_ss(
 
 		if (type == USB_ENDPOINT_XFER_INT) {
 			/* ep-e, ep-f are PIO with only 64 byte fifos */
-			ep = find_ep(gadget, "ep-e");
+			ep = gadget_find_ep_by_name(gadget, "ep-e");
 			if (ep && usb_gadget_ep_match_desc(gadget,
 					ep, desc, ep_comp))
 				goto found_ep;
-			ep = find_ep(gadget, "ep-f");
+			ep = gadget_find_ep_by_name(gadget, "ep-f");
 			if (ep && usb_gadget_ep_match_desc(gadget,
 					ep, desc, ep_comp))
 				goto found_ep;
@@ -116,20 +104,20 @@ struct usb_ep *usb_ep_autoconfig_ss(
 		/* USB3380: use same address for usb and hardware endpoints */
 		snprintf(name, sizeof(name), "ep%d%s", usb_endpoint_num(desc),
 				usb_endpoint_dir_in(desc) ? "in" : "out");
-		ep = find_ep(gadget, name);
+		ep = gadget_find_ep_by_name(gadget, name);
 		if (ep && usb_gadget_ep_match_desc(gadget, ep, desc, ep_comp))
 			goto found_ep;
 	} else if (gadget_is_goku (gadget)) {
 		if (USB_ENDPOINT_XFER_INT == type) {
 			/* single buffering is enough */
-			ep = find_ep(gadget, "ep3-bulk");
+			ep = gadget_find_ep_by_name(gadget, "ep3-bulk");
 			if (ep && usb_gadget_ep_match_desc(gadget,
 					ep, desc, ep_comp))
 				goto found_ep;
 		} else if (USB_ENDPOINT_XFER_BULK == type
 				&& (USB_DIR_IN & desc->bEndpointAddress)) {
 			/* DMA may be available */
-			ep = find_ep(gadget, "ep2-bulk");
+			ep = gadget_find_ep_by_name(gadget, "ep2-bulk");
 			if (ep && usb_gadget_ep_match_desc(gadget,
 					ep, desc, ep_comp))
 				goto found_ep;
@@ -140,14 +128,14 @@ struct usb_ep *usb_ep_autoconfig_ss(
 		if ((USB_ENDPOINT_XFER_BULK == type) ||
 		    (USB_ENDPOINT_XFER_ISOC == type)) {
 			if (USB_DIR_IN & desc->bEndpointAddress)
-				ep = find_ep (gadget, "ep5in");
+				ep = gadget_find_ep_by_name(gadget, "ep5in");
 			else
-				ep = find_ep (gadget, "ep6out");
+				ep = gadget_find_ep_by_name(gadget, "ep6out");
 		} else if (USB_ENDPOINT_XFER_INT == type) {
 			if (USB_DIR_IN & desc->bEndpointAddress)
-				ep = find_ep(gadget, "ep1in");
+				ep = gadget_find_ep_by_name(gadget, "ep1in");
 			else
-				ep = find_ep(gadget, "ep2out");
+				ep = gadget_find_ep_by_name(gadget, "ep2out");
 		} else
 			ep = NULL;
 		if (ep && usb_gadget_ep_match_desc(gadget, ep, desc, ep_comp))
diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h
index e04fd63..6a413ab 100644
--- a/include/linux/usb/gadget.h
+++ b/include/linux/usb/gadget.h
@@ -639,6 +639,24 @@ static inline struct usb_gadget *dev_to_usb_gadget(struct device *dev)
 #define gadget_for_each_ep(tmp, gadget) \
 	list_for_each_entry(tmp, &(gadget)->ep_list, ep_list)
 
+/**
+ * gadget_find_ep_by_name - returns ep whose name is the same as sting passed
+ *	in second parameter or NULL if searched endpoint not found
+ * @g: controller to check for quirk
+ * @name: name of searched endpoint
+ */
+static inline struct usb_ep *
+gadget_find_ep_by_name(struct usb_gadget *g, const char *name)
+{
+	struct usb_ep *ep;
+
+	gadget_for_each_ep(ep, g) {
+		if (!strcmp(ep->name, name))
+			return ep;
+	}
+
+	return NULL;
+}
 
 /**
  * usb_ep_align_maybe - returns @len aligned to ep's maxpacketsize if gadget
-- 
1.9.1

[PATCH v5 44/46] usb: gadget: net2280: add net2280_match_ep() function

[Robert Baldyga]

Add 'match_ep' callback to utilize chip-specific knowledge in endpoint matching
process. Function does the same that was done by chip-specific code inside
of epautoconf. Now this code can be removed from there to separate generic code
from platform specific logic.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/epautoconf.c  | 23 +----------------------
 drivers/usb/gadget/udc/net2280.c | 31 +++++++++++++++++++++++++++++++
 2 files changed, 32 insertions(+), 22 deletions(-)

diff --git a/drivers/usb/gadget/epautoconf.c b/drivers/usb/gadget/epautoconf.c
index cc0b084..d41fd82 100644
--- a/drivers/usb/gadget/epautoconf.c
+++ b/drivers/usb/gadget/epautoconf.c
@@ -86,28 +86,7 @@ struct usb_ep *usb_ep_autoconfig_ss(
 	/* First, apply chip-specific "best usage" knowledge.
 	 * This might make a good usb_gadget_ops hook ...
 	 */
-	if (gadget_is_net2280(gadget)) {
-		char name[8];
-
-		if (type == USB_ENDPOINT_XFER_INT) {
-			/* ep-e, ep-f are PIO with only 64 byte fifos */
-			ep = gadget_find_ep_by_name(gadget, "ep-e");
-			if (ep && usb_gadget_ep_match_desc(gadget,
-					ep, desc, ep_comp))
-				goto found_ep;
-			ep = gadget_find_ep_by_name(gadget, "ep-f");
-			if (ep && usb_gadget_ep_match_desc(gadget,
-					ep, desc, ep_comp))
-				goto found_ep;
-		}
-
-		/* USB3380: use same address for usb and hardware endpoints */
-		snprintf(name, sizeof(name), "ep%d%s", usb_endpoint_num(desc),
-				usb_endpoint_dir_in(desc) ? "in" : "out");
-		ep = gadget_find_ep_by_name(gadget, name);
-		if (ep && usb_gadget_ep_match_desc(gadget, ep, desc, ep_comp))
-			goto found_ep;
-	} else if (gadget_is_goku (gadget)) {
+	if (gadget_is_goku (gadget)) {
 		if (USB_ENDPOINT_XFER_INT == type) {
 			/* single buffering is enough */
 			ep = gadget_find_ep_by_name(gadget, "ep3-bulk");
diff --git a/drivers/usb/gadget/udc/net2280.c b/drivers/usb/gadget/udc/net2280.c
index 872ca25..9d7eac1 100644
--- a/drivers/usb/gadget/udc/net2280.c
+++ b/drivers/usb/gadget/udc/net2280.c
@@ -1550,6 +1550,36 @@ static int net2280_pullup(struct usb_gadget *_gadget, int is_on)
 	return 0;
 }
 
+static struct usb_ep *net2280_match_ep(struct usb_gadget *_gadget,
+		struct usb_endpoint_descriptor *desc,
+		struct usb_ss_ep_comp_descriptor *ep_comp)
+{
+	char name[8];
+	struct usb_ep *ep;
+	u8 type;
+
+	type = usb_endpoint_type(desc);
+
+	if (type == USB_ENDPOINT_XFER_INT) {
+		/* ep-e, ep-f are PIO with only 64 byte fifos */
+		ep = gadget_find_ep_by_name(_gadget, "ep-e");
+		if (ep && usb_gadget_ep_match_desc(_gadget, ep, desc, ep_comp))
+			return ep;
+		ep = gadget_find_ep_by_name(_gadget, "ep-f");
+		if (ep && usb_gadget_ep_match_desc(_gadget, ep, desc, ep_comp))
+			return ep;
+	}
+
+	/* USB3380: use same address for usb and hardware endpoints */
+	snprintf(name, sizeof(name), "ep%d%s", usb_endpoint_num(desc),
+			usb_endpoint_dir_in(desc) ? "in" : "out");
+	ep = gadget_find_ep_by_name(_gadget, name);
+	if (ep && usb_gadget_ep_match_desc(_gadget, ep, desc, ep_comp))
+		return ep;
+
+	return NULL;
+}
+
 static int net2280_start(struct usb_gadget *_gadget,
 		struct usb_gadget_driver *driver);
 static int net2280_stop(struct usb_gadget *_gadget);
@@ -1561,6 +1591,7 @@ static const struct usb_gadget_ops net2280_ops = {
 	.pullup		= net2280_pullup,
 	.udc_start	= net2280_start,
 	.udc_stop	= net2280_stop,
+	.match_ep	= net2280_match_ep,
 };
 
 /*-------------------------------------------------------------------------*/
-- 
1.9.1

[PATCH v5 44/46] usb: gadget: net2280: add net2280_match_ep() function

[Robert Baldyga]

Add 'match_ep' callback to utilize chip-specific knowledge in endpoint matching
process. Function does the same that was done by chip-specific code inside
of epautoconf. Now this code can be removed from there to separate generic code
from platform specific logic.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/epautoconf.c  | 23 +----------------------
 drivers/usb/gadget/udc/net2280.c | 31 +++++++++++++++++++++++++++++++
 2 files changed, 32 insertions(+), 22 deletions(-)

diff --git a/drivers/usb/gadget/epautoconf.c b/drivers/usb/gadget/epautoconf.c
index cc0b084..d41fd82 100644
--- a/drivers/usb/gadget/epautoconf.c
+++ b/drivers/usb/gadget/epautoconf.c
@@ -86,28 +86,7 @@ struct usb_ep *usb_ep_autoconfig_ss(
 	/* First, apply chip-specific "best usage" knowledge.
 	 * This might make a good usb_gadget_ops hook ...
 	 */
-	if (gadget_is_net2280(gadget)) {
-		char name[8];
-
-		if (type == USB_ENDPOINT_XFER_INT) {
-			/* ep-e, ep-f are PIO with only 64 byte fifos */
-			ep = gadget_find_ep_by_name(gadget, "ep-e");
-			if (ep && usb_gadget_ep_match_desc(gadget,
-					ep, desc, ep_comp))
-				goto found_ep;
-			ep = gadget_find_ep_by_name(gadget, "ep-f");
-			if (ep && usb_gadget_ep_match_desc(gadget,
-					ep, desc, ep_comp))
-				goto found_ep;
-		}
-
-		/* USB3380: use same address for usb and hardware endpoints */
-		snprintf(name, sizeof(name), "ep%d%s", usb_endpoint_num(desc),
-				usb_endpoint_dir_in(desc) ? "in" : "out");
-		ep = gadget_find_ep_by_name(gadget, name);
-		if (ep && usb_gadget_ep_match_desc(gadget, ep, desc, ep_comp))
-			goto found_ep;
-	} else if (gadget_is_goku (gadget)) {
+	if (gadget_is_goku (gadget)) {
 		if (USB_ENDPOINT_XFER_INT == type) {
 			/* single buffering is enough */
 			ep = gadget_find_ep_by_name(gadget, "ep3-bulk");
diff --git a/drivers/usb/gadget/udc/net2280.c b/drivers/usb/gadget/udc/net2280.c
index 872ca25..9d7eac1 100644
--- a/drivers/usb/gadget/udc/net2280.c
+++ b/drivers/usb/gadget/udc/net2280.c
@@ -1550,6 +1550,36 @@ static int net2280_pullup(struct usb_gadget *_gadget, int is_on)
 	return 0;
 }
 
+static struct usb_ep *net2280_match_ep(struct usb_gadget *_gadget,
+		struct usb_endpoint_descriptor *desc,
+		struct usb_ss_ep_comp_descriptor *ep_comp)
+{
+	char name[8];
+	struct usb_ep *ep;
+	u8 type;
+
+	type = usb_endpoint_type(desc);
+
+	if (type == USB_ENDPOINT_XFER_INT) {
+		/* ep-e, ep-f are PIO with only 64 byte fifos */
+		ep = gadget_find_ep_by_name(_gadget, "ep-e");
+		if (ep && usb_gadget_ep_match_desc(_gadget, ep, desc, ep_comp))
+			return ep;
+		ep = gadget_find_ep_by_name(_gadget, "ep-f");
+		if (ep && usb_gadget_ep_match_desc(_gadget, ep, desc, ep_comp))
+			return ep;
+	}
+
+	/* USB3380: use same address for usb and hardware endpoints */
+	snprintf(name, sizeof(name), "ep%d%s", usb_endpoint_num(desc),
+			usb_endpoint_dir_in(desc) ? "in" : "out");
+	ep = gadget_find_ep_by_name(_gadget, name);
+	if (ep && usb_gadget_ep_match_desc(_gadget, ep, desc, ep_comp))
+		return ep;
+
+	return NULL;
+}
+
 static int net2280_start(struct usb_gadget *_gadget,
 		struct usb_gadget_driver *driver);
 static int net2280_stop(struct usb_gadget *_gadget);
@@ -1561,6 +1591,7 @@ static const struct usb_gadget_ops net2280_ops = {
 	.pullup		= net2280_pullup,
 	.udc_start	= net2280_start,
 	.udc_stop	= net2280_stop,
+	.match_ep	= net2280_match_ep,
 };
 
 /*-------------------------------------------------------------------------*/
-- 
1.9.1

[PATCH v5 44/46] usb: gadget: net2280: add net2280_match_ep() function

[Robert Baldyga]

Add 'match_ep' callback to utilize chip-specific knowledge in endpoint matching
process. Function does the same that was done by chip-specific code inside
of epautoconf. Now this code can be removed from there to separate generic code
from platform specific logic.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/epautoconf.c  | 23 +----------------------
 drivers/usb/gadget/udc/net2280.c | 31 +++++++++++++++++++++++++++++++
 2 files changed, 32 insertions(+), 22 deletions(-)

diff --git a/drivers/usb/gadget/epautoconf.c b/drivers/usb/gadget/epautoconf.c
index cc0b084..d41fd82 100644
--- a/drivers/usb/gadget/epautoconf.c
+++ b/drivers/usb/gadget/epautoconf.c
@@ -86,28 +86,7 @@ struct usb_ep *usb_ep_autoconfig_ss(
 	/* First, apply chip-specific "best usage" knowledge.
 	 * This might make a good usb_gadget_ops hook ...
 	 */
-	if (gadget_is_net2280(gadget)) {
-		char name[8];
-
-		if (type == USB_ENDPOINT_XFER_INT) {
-			/* ep-e, ep-f are PIO with only 64 byte fifos */
-			ep = gadget_find_ep_by_name(gadget, "ep-e");
-			if (ep && usb_gadget_ep_match_desc(gadget,
-					ep, desc, ep_comp))
-				goto found_ep;
-			ep = gadget_find_ep_by_name(gadget, "ep-f");
-			if (ep && usb_gadget_ep_match_desc(gadget,
-					ep, desc, ep_comp))
-				goto found_ep;
-		}
-
-		/* USB3380: use same address for usb and hardware endpoints */
-		snprintf(name, sizeof(name), "ep%d%s", usb_endpoint_num(desc),
-				usb_endpoint_dir_in(desc) ? "in" : "out");
-		ep = gadget_find_ep_by_name(gadget, name);
-		if (ep && usb_gadget_ep_match_desc(gadget, ep, desc, ep_comp))
-			goto found_ep;
-	} else if (gadget_is_goku (gadget)) {
+	if (gadget_is_goku (gadget)) {
 		if (USB_ENDPOINT_XFER_INT == type) {
 			/* single buffering is enough */
 			ep = gadget_find_ep_by_name(gadget, "ep3-bulk");
diff --git a/drivers/usb/gadget/udc/net2280.c b/drivers/usb/gadget/udc/net2280.c
index 872ca25..9d7eac1 100644
--- a/drivers/usb/gadget/udc/net2280.c
+++ b/drivers/usb/gadget/udc/net2280.c
@@ -1550,6 +1550,36 @@ static int net2280_pullup(struct usb_gadget *_gadget, int is_on)
 	return 0;
 }
 
+static struct usb_ep *net2280_match_ep(struct usb_gadget *_gadget,
+		struct usb_endpoint_descriptor *desc,
+		struct usb_ss_ep_comp_descriptor *ep_comp)
+{
+	char name[8];
+	struct usb_ep *ep;
+	u8 type;
+
+	type = usb_endpoint_type(desc);
+
+	if (type == USB_ENDPOINT_XFER_INT) {
+		/* ep-e, ep-f are PIO with only 64 byte fifos */
+		ep = gadget_find_ep_by_name(_gadget, "ep-e");
+		if (ep && usb_gadget_ep_match_desc(_gadget, ep, desc, ep_comp))
+			return ep;
+		ep = gadget_find_ep_by_name(_gadget, "ep-f");
+		if (ep && usb_gadget_ep_match_desc(_gadget, ep, desc, ep_comp))
+			return ep;
+	}
+
+	/* USB3380: use same address for usb and hardware endpoints */
+	snprintf(name, sizeof(name), "ep%d%s", usb_endpoint_num(desc),
+			usb_endpoint_dir_in(desc) ? "in" : "out");
+	ep = gadget_find_ep_by_name(_gadget, name);
+	if (ep && usb_gadget_ep_match_desc(_gadget, ep, desc, ep_comp))
+		return ep;
+
+	return NULL;
+}
+
 static int net2280_start(struct usb_gadget *_gadget,
 		struct usb_gadget_driver *driver);
 static int net2280_stop(struct usb_gadget *_gadget);
@@ -1561,6 +1591,7 @@ static const struct usb_gadget_ops net2280_ops = {
 	.pullup		= net2280_pullup,
 	.udc_start	= net2280_start,
 	.udc_stop	= net2280_stop,
+	.match_ep	= net2280_match_ep,
 };
 
 /*-------------------------------------------------------------------------*/
-- 
1.9.1

[PATCH v5 45/46] usb: gadget: goku_udc: add goku_match_ep() function

[Robert Baldyga]

Add 'match_ep' callback to utilize chip-specific knowledge in endpoint matching
process. Function does the same that was done by chip-specific code inside
of epautoconf. Now this code can be removed from there to separate generic code
from platform specific logic.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/epautoconf.c   | 20 ++------------------
 drivers/usb/gadget/udc/goku_udc.c | 25 +++++++++++++++++++++++++
 2 files changed, 27 insertions(+), 18 deletions(-)

diff --git a/drivers/usb/gadget/epautoconf.c b/drivers/usb/gadget/epautoconf.c
index d41fd82..da45371 100644
--- a/drivers/usb/gadget/epautoconf.c
+++ b/drivers/usb/gadget/epautoconf.c
@@ -86,24 +86,8 @@ struct usb_ep *usb_ep_autoconfig_ss(
 	/* First, apply chip-specific "best usage" knowledge.
 	 * This might make a good usb_gadget_ops hook ...
 	 */
-	if (gadget_is_goku (gadget)) {
-		if (USB_ENDPOINT_XFER_INT == type) {
-			/* single buffering is enough */
-			ep = gadget_find_ep_by_name(gadget, "ep3-bulk");
-			if (ep && usb_gadget_ep_match_desc(gadget,
-					ep, desc, ep_comp))
-				goto found_ep;
-		} else if (USB_ENDPOINT_XFER_BULK == type
-				&& (USB_DIR_IN & desc->bEndpointAddress)) {
-			/* DMA may be available */
-			ep = gadget_find_ep_by_name(gadget, "ep2-bulk");
-			if (ep && usb_gadget_ep_match_desc(gadget,
-					ep, desc, ep_comp))
-				goto found_ep;
-		}
-
 #ifdef CONFIG_BLACKFIN
-	} else if (gadget_is_musbhdrc(gadget)) {
+	if (gadget_is_musbhdrc(gadget)) {
 		if ((USB_ENDPOINT_XFER_BULK == type) ||
 		    (USB_ENDPOINT_XFER_ISOC == type)) {
 			if (USB_DIR_IN & desc->bEndpointAddress)
@@ -119,8 +103,8 @@ struct usb_ep *usb_ep_autoconfig_ss(
 			ep = NULL;
 		if (ep && usb_gadget_ep_match_desc(gadget, ep, desc, ep_comp))
 			goto found_ep;
-#endif
 	}
+#endif
 
 	/* Second, look at endpoints until an unclaimed one looks usable */
 	list_for_each_entry (ep, &gadget->ep_list, ep_list) {
diff --git a/drivers/usb/gadget/udc/goku_udc.c b/drivers/usb/gadget/udc/goku_udc.c
index 46b8d14..d5a93ea 100644
--- a/drivers/usb/gadget/udc/goku_udc.c
+++ b/drivers/usb/gadget/udc/goku_udc.c
@@ -990,6 +990,30 @@ static int goku_get_frame(struct usb_gadget *_gadget)
 	return -EOPNOTSUPP;
 }
 
+static struct usb_ep *goku_match_ep(struct usb_gadget *g,
+		struct usb_endpoint_descriptor *desc,
+		struct usb_ss_ep_comp_descriptor *ep_comp)
+{
+	struct goku_udc	*dev = to_goku_udc(g);
+	struct usb_ep *ep;
+	u8 type = usb_endpoint_type(desc);
+
+	if (type == USB_ENDPOINT_XFER_INT) {
+		/* single buffering is enough */
+		ep = &dev->ep[3].ep;
+		if (ep && usb_gadget_ep_match_desc(g, ep, desc, ep_comp))
+			return ep;
+	} else if (type == USB_ENDPOINT_XFER_BULK
+			&& usb_endpoint_dir_in(desc)) {
+		/* DMA may be available */
+		ep = &dev->ep[2].ep;
+		if (ep && usb_gadget_ep_match_desc(g, ep, desc, ep_comp))
+			return ep;
+	}
+
+	return NULL;
+}
+
 static int goku_udc_start(struct usb_gadget *g,
 		struct usb_gadget_driver *driver);
 static int goku_udc_stop(struct usb_gadget *g);
@@ -998,6 +1022,7 @@ static const struct usb_gadget_ops goku_ops = {
 	.get_frame	= goku_get_frame,
 	.udc_start	= goku_udc_start,
 	.udc_stop	= goku_udc_stop,
+	.match_ep	= goku_match_ep,
 	// no remote wakeup
 	// not selfpowered
 };
-- 
1.9.1

[PATCH v5 45/46] usb: gadget: goku_udc: add goku_match_ep() function

[Robert Baldyga]

Add 'match_ep' callback to utilize chip-specific knowledge in endpoint matching
process. Function does the same that was done by chip-specific code inside
of epautoconf. Now this code can be removed from there to separate generic code
from platform specific logic.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/epautoconf.c   | 20 ++------------------
 drivers/usb/gadget/udc/goku_udc.c | 25 +++++++++++++++++++++++++
 2 files changed, 27 insertions(+), 18 deletions(-)

diff --git a/drivers/usb/gadget/epautoconf.c b/drivers/usb/gadget/epautoconf.c
index d41fd82..da45371 100644
--- a/drivers/usb/gadget/epautoconf.c
+++ b/drivers/usb/gadget/epautoconf.c
@@ -86,24 +86,8 @@ struct usb_ep *usb_ep_autoconfig_ss(
 	/* First, apply chip-specific "best usage" knowledge.
 	 * This might make a good usb_gadget_ops hook ...
 	 */
-	if (gadget_is_goku (gadget)) {
-		if (USB_ENDPOINT_XFER_INT == type) {
-			/* single buffering is enough */
-			ep = gadget_find_ep_by_name(gadget, "ep3-bulk");
-			if (ep && usb_gadget_ep_match_desc(gadget,
-					ep, desc, ep_comp))
-				goto found_ep;
-		} else if (USB_ENDPOINT_XFER_BULK == type
-				&& (USB_DIR_IN & desc->bEndpointAddress)) {
-			/* DMA may be available */
-			ep = gadget_find_ep_by_name(gadget, "ep2-bulk");
-			if (ep && usb_gadget_ep_match_desc(gadget,
-					ep, desc, ep_comp))
-				goto found_ep;
-		}
-
 #ifdef CONFIG_BLACKFIN
-	} else if (gadget_is_musbhdrc(gadget)) {
+	if (gadget_is_musbhdrc(gadget)) {
 		if ((USB_ENDPOINT_XFER_BULK == type) ||
 		    (USB_ENDPOINT_XFER_ISOC == type)) {
 			if (USB_DIR_IN & desc->bEndpointAddress)
@@ -119,8 +103,8 @@ struct usb_ep *usb_ep_autoconfig_ss(
 			ep = NULL;
 		if (ep && usb_gadget_ep_match_desc(gadget, ep, desc, ep_comp))
 			goto found_ep;
-#endif
 	}
+#endif
 
 	/* Second, look at endpoints until an unclaimed one looks usable */
 	list_for_each_entry (ep, &gadget->ep_list, ep_list) {
diff --git a/drivers/usb/gadget/udc/goku_udc.c b/drivers/usb/gadget/udc/goku_udc.c
index 46b8d14..d5a93ea 100644
--- a/drivers/usb/gadget/udc/goku_udc.c
+++ b/drivers/usb/gadget/udc/goku_udc.c
@@ -990,6 +990,30 @@ static int goku_get_frame(struct usb_gadget *_gadget)
 	return -EOPNOTSUPP;
 }
 
+static struct usb_ep *goku_match_ep(struct usb_gadget *g,
+		struct usb_endpoint_descriptor *desc,
+		struct usb_ss_ep_comp_descriptor *ep_comp)
+{
+	struct goku_udc	*dev = to_goku_udc(g);
+	struct usb_ep *ep;
+	u8 type = usb_endpoint_type(desc);
+
+	if (type == USB_ENDPOINT_XFER_INT) {
+		/* single buffering is enough */
+		ep = &dev->ep[3].ep;
+		if (ep && usb_gadget_ep_match_desc(g, ep, desc, ep_comp))
+			return ep;
+	} else if (type == USB_ENDPOINT_XFER_BULK
+			&& usb_endpoint_dir_in(desc)) {
+		/* DMA may be available */
+		ep = &dev->ep[2].ep;
+		if (ep && usb_gadget_ep_match_desc(g, ep, desc, ep_comp))
+			return ep;
+	}
+
+	return NULL;
+}
+
 static int goku_udc_start(struct usb_gadget *g,
 		struct usb_gadget_driver *driver);
 static int goku_udc_stop(struct usb_gadget *g);
@@ -998,6 +1022,7 @@ static const struct usb_gadget_ops goku_ops = {
 	.get_frame	= goku_get_frame,
 	.udc_start	= goku_udc_start,
 	.udc_stop	= goku_udc_stop,
+	.match_ep	= goku_match_ep,
 	// no remote wakeup
 	// not selfpowered
 };
-- 
1.9.1

[PATCH v5 45/46] usb: gadget: goku_udc: add goku_match_ep() function

[Robert Baldyga]

Add 'match_ep' callback to utilize chip-specific knowledge in endpoint matching
process. Function does the same that was done by chip-specific code inside
of epautoconf. Now this code can be removed from there to separate generic code
from platform specific logic.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/epautoconf.c   | 20 ++------------------
 drivers/usb/gadget/udc/goku_udc.c | 25 +++++++++++++++++++++++++
 2 files changed, 27 insertions(+), 18 deletions(-)

diff --git a/drivers/usb/gadget/epautoconf.c b/drivers/usb/gadget/epautoconf.c
index d41fd82..da45371 100644
--- a/drivers/usb/gadget/epautoconf.c
+++ b/drivers/usb/gadget/epautoconf.c
@@ -86,24 +86,8 @@ struct usb_ep *usb_ep_autoconfig_ss(
 	/* First, apply chip-specific "best usage" knowledge.
 	 * This might make a good usb_gadget_ops hook ...
 	 */
-	if (gadget_is_goku (gadget)) {
-		if (USB_ENDPOINT_XFER_INT == type) {
-			/* single buffering is enough */
-			ep = gadget_find_ep_by_name(gadget, "ep3-bulk");
-			if (ep && usb_gadget_ep_match_desc(gadget,
-					ep, desc, ep_comp))
-				goto found_ep;
-		} else if (USB_ENDPOINT_XFER_BULK == type
-				&& (USB_DIR_IN & desc->bEndpointAddress)) {
-			/* DMA may be available */
-			ep = gadget_find_ep_by_name(gadget, "ep2-bulk");
-			if (ep && usb_gadget_ep_match_desc(gadget,
-					ep, desc, ep_comp))
-				goto found_ep;
-		}
-
 #ifdef CONFIG_BLACKFIN
-	} else if (gadget_is_musbhdrc(gadget)) {
+	if (gadget_is_musbhdrc(gadget)) {
 		if ((USB_ENDPOINT_XFER_BULK == type) ||
 		    (USB_ENDPOINT_XFER_ISOC == type)) {
 			if (USB_DIR_IN & desc->bEndpointAddress)
@@ -119,8 +103,8 @@ struct usb_ep *usb_ep_autoconfig_ss(
 			ep = NULL;
 		if (ep && usb_gadget_ep_match_desc(gadget, ep, desc, ep_comp))
 			goto found_ep;
-#endif
 	}
+#endif
 
 	/* Second, look at endpoints until an unclaimed one looks usable */
 	list_for_each_entry (ep, &gadget->ep_list, ep_list) {
diff --git a/drivers/usb/gadget/udc/goku_udc.c b/drivers/usb/gadget/udc/goku_udc.c
index 46b8d14..d5a93ea 100644
--- a/drivers/usb/gadget/udc/goku_udc.c
+++ b/drivers/usb/gadget/udc/goku_udc.c
@@ -990,6 +990,30 @@ static int goku_get_frame(struct usb_gadget *_gadget)
 	return -EOPNOTSUPP;
 }
 
+static struct usb_ep *goku_match_ep(struct usb_gadget *g,
+		struct usb_endpoint_descriptor *desc,
+		struct usb_ss_ep_comp_descriptor *ep_comp)
+{
+	struct goku_udc	*dev = to_goku_udc(g);
+	struct usb_ep *ep;
+	u8 type = usb_endpoint_type(desc);
+
+	if (type == USB_ENDPOINT_XFER_INT) {
+		/* single buffering is enough */
+		ep = &dev->ep[3].ep;
+		if (ep && usb_gadget_ep_match_desc(g, ep, desc, ep_comp))
+			return ep;
+	} else if (type == USB_ENDPOINT_XFER_BULK
+			&& usb_endpoint_dir_in(desc)) {
+		/* DMA may be available */
+		ep = &dev->ep[2].ep;
+		if (ep && usb_gadget_ep_match_desc(g, ep, desc, ep_comp))
+			return ep;
+	}
+
+	return NULL;
+}
+
 static int goku_udc_start(struct usb_gadget *g,
 		struct usb_gadget_driver *driver);
 static int goku_udc_stop(struct usb_gadget *g);
@@ -998,6 +1022,7 @@ static const struct usb_gadget_ops goku_ops = {
 	.get_frame	= goku_get_frame,
 	.udc_start	= goku_udc_start,
 	.udc_stop	= goku_udc_stop,
+	.match_ep	= goku_match_ep,
 	// no remote wakeup
 	// not selfpowered
 };
-- 
1.9.1

[PATCH v5 46/46] usb: musb: gadget: add musb_match_ep() function

[Robert Baldyga]

Add 'match_ep' callback to utilize chip-specific knowledge in endpoint matching
process. Function does the same that was done by chip-specific code inside
of epautoconf. Now this code can be removed from there to separate generic code
from platform specific logic.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/epautoconf.c | 23 -----------------------
 drivers/usb/musb/musb_gadget.c  | 34 ++++++++++++++++++++++++++++++++++
 2 files changed, 34 insertions(+), 23 deletions(-)

diff --git a/drivers/usb/gadget/epautoconf.c b/drivers/usb/gadget/epautoconf.c
index da45371..254ece7 100644
--- a/drivers/usb/gadget/epautoconf.c
+++ b/drivers/usb/gadget/epautoconf.c
@@ -83,29 +83,6 @@ struct usb_ep *usb_ep_autoconfig_ss(
 			goto found_ep;
 	}
 
-	/* First, apply chip-specific "best usage" knowledge.
-	 * This might make a good usb_gadget_ops hook ...
-	 */
-#ifdef CONFIG_BLACKFIN
-	if (gadget_is_musbhdrc(gadget)) {
-		if ((USB_ENDPOINT_XFER_BULK == type) ||
-		    (USB_ENDPOINT_XFER_ISOC == type)) {
-			if (USB_DIR_IN & desc->bEndpointAddress)
-				ep = gadget_find_ep_by_name(gadget, "ep5in");
-			else
-				ep = gadget_find_ep_by_name(gadget, "ep6out");
-		} else if (USB_ENDPOINT_XFER_INT == type) {
-			if (USB_DIR_IN & desc->bEndpointAddress)
-				ep = gadget_find_ep_by_name(gadget, "ep1in");
-			else
-				ep = gadget_find_ep_by_name(gadget, "ep2out");
-		} else
-			ep = NULL;
-		if (ep && usb_gadget_ep_match_desc(gadget, ep, desc, ep_comp))
-			goto found_ep;
-	}
-#endif
-
 	/* Second, look at endpoints until an unclaimed one looks usable */
 	list_for_each_entry (ep, &gadget->ep_list, ep_list) {
 		if (usb_gadget_ep_match_desc(gadget, ep, desc, ep_comp))
diff --git a/drivers/usb/musb/musb_gadget.c b/drivers/usb/musb/musb_gadget.c
index 4150baf..02c3f8a 100644
--- a/drivers/usb/musb/musb_gadget.c
+++ b/drivers/usb/musb/musb_gadget.c
@@ -1684,6 +1684,39 @@ static int musb_gadget_pullup(struct usb_gadget *gadget, int is_on)
 	return 0;
 }
 
+#ifdef CONFIG_BLACKFIN
+static struct usb_ep *musb_match_ep(struct usb_gadget *g,
+		struct usb_endpoint_descriptor *desc,
+		struct usb_ss_ep_comp_descriptor *ep_comp)
+{
+	struct usb_ep *ep = NULL;
+	u8 type = usb_endpoint_type(desc);
+
+	switch(type) {
+	case USB_ENDPOINT_XFER_ISOC:
+	case USB_ENDPOINT_XFER_BULK:
+		if (usb_endpoint_dir_in(desc))
+			ep = gadget_find_ep_by_name(g, "ep5in");
+		else
+			ep = gadget_find_ep_by_name(g, "ep6out");
+		break;
+	case USB_ENDPOINT_XFER_INT:
+		if (usb_endpoint_dir_in(desc))
+			ep = gadget_find_ep_by_name(g, "ep1in");
+		else
+			ep = gadget_find_ep_by_name(g, "ep2out");
+	default:
+	}
+
+	if (ep && usb_gadget_ep_match_desc(g, ep, desc, ep_comp))
+		return ep;
+
+	return NULL;
+}
+#else
+#define musb_match_ep NULL
+#endif
+
 static int musb_gadget_start(struct usb_gadget *g,
 		struct usb_gadget_driver *driver);
 static int musb_gadget_stop(struct usb_gadget *g);
@@ -1697,6 +1730,7 @@ static const struct usb_gadget_ops musb_gadget_operations = {
 	.pullup			= musb_gadget_pullup,
 	.udc_start		= musb_gadget_start,
 	.udc_stop		= musb_gadget_stop,
+	.match_ep		= musb_match_ep,
 };
 
 /* ----------------------------------------------------------------------- */
-- 
1.9.1

[PATCH v5 46/46] usb: musb: gadget: add musb_match_ep() function

[Robert Baldyga]

Add 'match_ep' callback to utilize chip-specific knowledge in endpoint matching
process. Function does the same that was done by chip-specific code inside
of epautoconf. Now this code can be removed from there to separate generic code
from platform specific logic.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/epautoconf.c | 23 -----------------------
 drivers/usb/musb/musb_gadget.c  | 34 ++++++++++++++++++++++++++++++++++
 2 files changed, 34 insertions(+), 23 deletions(-)

diff --git a/drivers/usb/gadget/epautoconf.c b/drivers/usb/gadget/epautoconf.c
index da45371..254ece7 100644
--- a/drivers/usb/gadget/epautoconf.c
+++ b/drivers/usb/gadget/epautoconf.c
@@ -83,29 +83,6 @@ struct usb_ep *usb_ep_autoconfig_ss(
 			goto found_ep;
 	}
 
-	/* First, apply chip-specific "best usage" knowledge.
-	 * This might make a good usb_gadget_ops hook ...
-	 */
-#ifdef CONFIG_BLACKFIN
-	if (gadget_is_musbhdrc(gadget)) {
-		if ((USB_ENDPOINT_XFER_BULK == type) ||
-		    (USB_ENDPOINT_XFER_ISOC == type)) {
-			if (USB_DIR_IN & desc->bEndpointAddress)
-				ep = gadget_find_ep_by_name(gadget, "ep5in");
-			else
-				ep = gadget_find_ep_by_name(gadget, "ep6out");
-		} else if (USB_ENDPOINT_XFER_INT == type) {
-			if (USB_DIR_IN & desc->bEndpointAddress)
-				ep = gadget_find_ep_by_name(gadget, "ep1in");
-			else
-				ep = gadget_find_ep_by_name(gadget, "ep2out");
-		} else
-			ep = NULL;
-		if (ep && usb_gadget_ep_match_desc(gadget, ep, desc, ep_comp))
-			goto found_ep;
-	}
-#endif
-
 	/* Second, look at endpoints until an unclaimed one looks usable */
 	list_for_each_entry (ep, &gadget->ep_list, ep_list) {
 		if (usb_gadget_ep_match_desc(gadget, ep, desc, ep_comp))
diff --git a/drivers/usb/musb/musb_gadget.c b/drivers/usb/musb/musb_gadget.c
index 4150baf..02c3f8a 100644
--- a/drivers/usb/musb/musb_gadget.c
+++ b/drivers/usb/musb/musb_gadget.c
@@ -1684,6 +1684,39 @@ static int musb_gadget_pullup(struct usb_gadget *gadget, int is_on)
 	return 0;
 }
 
+#ifdef CONFIG_BLACKFIN
+static struct usb_ep *musb_match_ep(struct usb_gadget *g,
+		struct usb_endpoint_descriptor *desc,
+		struct usb_ss_ep_comp_descriptor *ep_comp)
+{
+	struct usb_ep *ep = NULL;
+	u8 type = usb_endpoint_type(desc);
+
+	switch(type) {
+	case USB_ENDPOINT_XFER_ISOC:
+	case USB_ENDPOINT_XFER_BULK:
+		if (usb_endpoint_dir_in(desc))
+			ep = gadget_find_ep_by_name(g, "ep5in");
+		else
+			ep = gadget_find_ep_by_name(g, "ep6out");
+		break;
+	case USB_ENDPOINT_XFER_INT:
+		if (usb_endpoint_dir_in(desc))
+			ep = gadget_find_ep_by_name(g, "ep1in");
+		else
+			ep = gadget_find_ep_by_name(g, "ep2out");
+	default:
+	}
+
+	if (ep && usb_gadget_ep_match_desc(g, ep, desc, ep_comp))
+		return ep;
+
+	return NULL;
+}
+#else
+#define musb_match_ep NULL
+#endif
+
 static int musb_gadget_start(struct usb_gadget *g,
 		struct usb_gadget_driver *driver);
 static int musb_gadget_stop(struct usb_gadget *g);
@@ -1697,6 +1730,7 @@ static const struct usb_gadget_ops musb_gadget_operations = {
 	.pullup			= musb_gadget_pullup,
 	.udc_start		= musb_gadget_start,
 	.udc_stop		= musb_gadget_stop,
+	.match_ep		= musb_match_ep,
 };
 
 /* ----------------------------------------------------------------------- */
-- 
1.9.1

[PATCH v5 46/46] usb: musb: gadget: add musb_match_ep() function

[Robert Baldyga]

Add 'match_ep' callback to utilize chip-specific knowledge in endpoint matching
process. Function does the same that was done by chip-specific code inside
of epautoconf. Now this code can be removed from there to separate generic code
from platform specific logic.

Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
---
 drivers/usb/gadget/epautoconf.c | 23 -----------------------
 drivers/usb/musb/musb_gadget.c  | 34 ++++++++++++++++++++++++++++++++++
 2 files changed, 34 insertions(+), 23 deletions(-)

diff --git a/drivers/usb/gadget/epautoconf.c b/drivers/usb/gadget/epautoconf.c
index da45371..254ece7 100644
--- a/drivers/usb/gadget/epautoconf.c
+++ b/drivers/usb/gadget/epautoconf.c
@@ -83,29 +83,6 @@ struct usb_ep *usb_ep_autoconfig_ss(
 			goto found_ep;
 	}
 
-	/* First, apply chip-specific "best usage" knowledge.
-	 * This might make a good usb_gadget_ops hook ...
-	 */
-#ifdef CONFIG_BLACKFIN
-	if (gadget_is_musbhdrc(gadget)) {
-		if ((USB_ENDPOINT_XFER_BULK == type) ||
-		    (USB_ENDPOINT_XFER_ISOC == type)) {
-			if (USB_DIR_IN & desc->bEndpointAddress)
-				ep = gadget_find_ep_by_name(gadget, "ep5in");
-			else
-				ep = gadget_find_ep_by_name(gadget, "ep6out");
-		} else if (USB_ENDPOINT_XFER_INT == type) {
-			if (USB_DIR_IN & desc->bEndpointAddress)
-				ep = gadget_find_ep_by_name(gadget, "ep1in");
-			else
-				ep = gadget_find_ep_by_name(gadget, "ep2out");
-		} else
-			ep = NULL;
-		if (ep && usb_gadget_ep_match_desc(gadget, ep, desc, ep_comp))
-			goto found_ep;
-	}
-#endif
-
 	/* Second, look at endpoints until an unclaimed one looks usable */
 	list_for_each_entry (ep, &gadget->ep_list, ep_list) {
 		if (usb_gadget_ep_match_desc(gadget, ep, desc, ep_comp))
diff --git a/drivers/usb/musb/musb_gadget.c b/drivers/usb/musb/musb_gadget.c
index 4150baf..02c3f8a 100644
--- a/drivers/usb/musb/musb_gadget.c
+++ b/drivers/usb/musb/musb_gadget.c
@@ -1684,6 +1684,39 @@ static int musb_gadget_pullup(struct usb_gadget *gadget, int is_on)
 	return 0;
 }
 
+#ifdef CONFIG_BLACKFIN
+static struct usb_ep *musb_match_ep(struct usb_gadget *g,
+		struct usb_endpoint_descriptor *desc,
+		struct usb_ss_ep_comp_descriptor *ep_comp)
+{
+	struct usb_ep *ep = NULL;
+	u8 type = usb_endpoint_type(desc);
+
+	switch(type) {
+	case USB_ENDPOINT_XFER_ISOC:
+	case USB_ENDPOINT_XFER_BULK:
+		if (usb_endpoint_dir_in(desc))
+			ep = gadget_find_ep_by_name(g, "ep5in");
+		else
+			ep = gadget_find_ep_by_name(g, "ep6out");
+		break;
+	case USB_ENDPOINT_XFER_INT:
+		if (usb_endpoint_dir_in(desc))
+			ep = gadget_find_ep_by_name(g, "ep1in");
+		else
+			ep = gadget_find_ep_by_name(g, "ep2out");
+	default:
+	}
+
+	if (ep && usb_gadget_ep_match_desc(g, ep, desc, ep_comp))
+		return ep;
+
+	return NULL;
+}
+#else
+#define musb_match_ep NULL
+#endif
+
 static int musb_gadget_start(struct usb_gadget *g,
 		struct usb_gadget_driver *driver);
 static int musb_gadget_stop(struct usb_gadget *g);
@@ -1697,6 +1730,7 @@ static const struct usb_gadget_ops musb_gadget_operations = {
 	.pullup			= musb_gadget_pullup,
 	.udc_start		= musb_gadget_start,
 	.udc_stop		= musb_gadget_stop,
+	.match_ep		= musb_match_ep,
 };
 
 /* ----------------------------------------------------------------------- */
-- 
1.9.1

RE: [PATCH v5 02/46] usb: gadget: add endpoint capabilities flags

[David Laight]

[-- Warning: decoded text below may be mangled, UTF-8 assumed --]
[-- Attachment #1: Type: text/plain; charset="utf-8", Size: 1656 bytes --]

From: Robert Baldyga
> Sent: 31 July 2015 15:00
> Introduce struct usb_ep_caps which contains information about capabilities
> of usb endpoints - supported transfer types and directions. This structure
> should be filled by UDC driver for each of its endpoints, and will be
> used in epautoconf in new ep matching mechanism which will replace ugly
> guessing of endpoint capabilities basing on its name.
> 
> Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
> ---
>  include/linux/usb/gadget.h | 21 +++++++++++++++++++++
>  1 file changed, 21 insertions(+)
> 
> diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h
> index 68fb5e8..a9a4959 100644
> --- a/include/linux/usb/gadget.h
> +++ b/include/linux/usb/gadget.h
> @@ -141,10 +141,29 @@ struct usb_ep_ops {
>  };
...
> +struct usb_ep_caps {
> +	unsigned type_control:1;
> +	unsigned type_iso:1;
> +	unsigned type_bulk:1;
> +	unsigned type_int:1;
> +	unsigned dir_in:1;
> +	unsigned dir_out:1;
> +};

With the way this is used (eg below from 13/46)

+
+		if (i == 0) {
+			ep->ep.caps.type_control = true;
+		} else {
+			ep->ep.caps.type_iso = true;
+			ep->ep.caps.type_bulk = true;
+			ep->ep.caps.type_int = true;
+		}
+
+		ep->ep.caps.dir_in = true;
+		ep->ep.caps.dir_out = true;

I think it would be more obvious if you used a u8 and explicit bitmasks.
The initialisation (as above) would the be explicitly assigning 'not supported'
to the other fields.
The compiler will also generate much better code...

	David

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RE: [PATCH v5 02/46] usb: gadget: add endpoint capabilities flags

[David Laight]

From: Robert Baldyga
> Sent: 31 July 2015 15:00
> Introduce struct usb_ep_caps which contains information about capabilities
> of usb endpoints - supported transfer types and directions. This structure
> should be filled by UDC driver for each of its endpoints, and will be
> used in epautoconf in new ep matching mechanism which will replace ugly
> guessing of endpoint capabilities basing on its name.
> 
> Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
> ---
>  include/linux/usb/gadget.h | 21 +++++++++++++++++++++
>  1 file changed, 21 insertions(+)
> 
> diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h
> index 68fb5e8..a9a4959 100644
> --- a/include/linux/usb/gadget.h
> +++ b/include/linux/usb/gadget.h
> @@ -141,10 +141,29 @@ struct usb_ep_ops {
>  };
...
> +struct usb_ep_caps {
> +	unsigned type_control:1;
> +	unsigned type_iso:1;
> +	unsigned type_bulk:1;
> +	unsigned type_int:1;
> +	unsigned dir_in:1;
> +	unsigned dir_out:1;
> +};

With the way this is used (eg below from 13/46)

+
+		if (i == 0) {
+			ep->ep.caps.type_control = true;
+		} else {
+			ep->ep.caps.type_iso = true;
+			ep->ep.caps.type_bulk = true;
+			ep->ep.caps.type_int = true;
+		}
+
+		ep->ep.caps.dir_in = true;
+		ep->ep.caps.dir_out = true;

I think it would be more obvious if you used a u8 and explicit bitmasks.
The initialisation (as above) would the be explicitly assigning 'not supported'
to the other fields.
The compiler will also generate much better code...

	David

RE: [PATCH v5 02/46] usb: gadget: add endpoint capabilities flags

[David Laight]

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[PATCH v5 02/46] usb: gadget: add endpoint capabilities flags

[David Laight]

From: Robert Baldyga
> Sent: 31 July 2015 15:00
> Introduce struct usb_ep_caps which contains information about capabilities
> of usb endpoints - supported transfer types and directions. This structure
> should be filled by UDC driver for each of its endpoints, and will be
> used in epautoconf in new ep matching mechanism which will replace ugly
> guessing of endpoint capabilities basing on its name.
> 
> Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
> ---
>  include/linux/usb/gadget.h | 21 +++++++++++++++++++++
>  1 file changed, 21 insertions(+)
> 
> diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h
> index 68fb5e8..a9a4959 100644
> --- a/include/linux/usb/gadget.h
> +++ b/include/linux/usb/gadget.h
> @@ -141,10 +141,29 @@ struct usb_ep_ops {
>  };
...
> +struct usb_ep_caps {
> +	unsigned type_control:1;
> +	unsigned type_iso:1;
> +	unsigned type_bulk:1;
> +	unsigned type_int:1;
> +	unsigned dir_in:1;
> +	unsigned dir_out:1;
> +};

With the way this is used (eg below from 13/46)

+
+		if (i == 0) {
+			ep->ep.caps.type_control = true;
+		} else {
+			ep->ep.caps.type_iso = true;
+			ep->ep.caps.type_bulk = true;
+			ep->ep.caps.type_int = true;
+		}
+
+		ep->ep.caps.dir_in = true;
+		ep->ep.caps.dir_out = true;

I think it would be more obvious if you used a u8 and explicit bitmasks.
The initialisation (as above) would the be explicitly assigning 'not supported'
to the other fields.
The compiler will also generate much better code...

	David

Re: [PATCH v5 02/46] usb: gadget: add endpoint capabilities flags

[Felipe Balbi]

[-- Attachment #1: Type: text/plain, Size: 2003 bytes --]

Hi,

On Fri, Jul 31, 2015 at 03:51:52PM +0000, David Laight wrote:
> From: Robert Baldyga
> > Sent: 31 July 2015 15:00
> > Introduce struct usb_ep_caps which contains information about capabilities
> > of usb endpoints - supported transfer types and directions. This structure
> > should be filled by UDC driver for each of its endpoints, and will be
> > used in epautoconf in new ep matching mechanism which will replace ugly
> > guessing of endpoint capabilities basing on its name.
> > 
> > Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
> > ---
> >  include/linux/usb/gadget.h | 21 +++++++++++++++++++++
> >  1 file changed, 21 insertions(+)
> > 
> > diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h
> > index 68fb5e8..a9a4959 100644
> > --- a/include/linux/usb/gadget.h
> > +++ b/include/linux/usb/gadget.h
> > @@ -141,10 +141,29 @@ struct usb_ep_ops {
> >  };
> ...
> > +struct usb_ep_caps {
> > +	unsigned type_control:1;
> > +	unsigned type_iso:1;
> > +	unsigned type_bulk:1;
> > +	unsigned type_int:1;
> > +	unsigned dir_in:1;
> > +	unsigned dir_out:1;
> > +};
> 
> With the way this is used (eg below from 13/46)
> 
> +
> +		if (i == 0) {
> +			ep->ep.caps.type_control = true;
> +		} else {
> +			ep->ep.caps.type_iso = true;
> +			ep->ep.caps.type_bulk = true;
> +			ep->ep.caps.type_int = true;
> +		}
> +
> +		ep->ep.caps.dir_in = true;
> +		ep->ep.caps.dir_out = true;
> 
> I think it would be more obvious if you used a u8 and explicit bitmasks.
> The initialisation (as above) would the be explicitly assigning 'not supported'
> to the other fields.
> The compiler will also generate much better code...

compiler should convert single bit flags into u32 just fine. It's all
static data anyway. Besides, single bit flags allow us to have as many
as we need without ending up with stuff like:

u32 flags;
u32 flags1;
u32 flags2;

etc. Just let the compiler do those conversions for us.

-- 
balbi

[-- Attachment #2: Digital signature --]
[-- Type: application/pgp-signature, Size: 819 bytes --]

Re: [PATCH v5 02/46] usb: gadget: add endpoint capabilities flags

[Felipe Balbi]

[-- Attachment #1.1: Type: text/plain, Size: 2003 bytes --]

Hi,

On Fri, Jul 31, 2015 at 03:51:52PM +0000, David Laight wrote:
> From: Robert Baldyga
> > Sent: 31 July 2015 15:00
> > Introduce struct usb_ep_caps which contains information about capabilities
> > of usb endpoints - supported transfer types and directions. This structure
> > should be filled by UDC driver for each of its endpoints, and will be
> > used in epautoconf in new ep matching mechanism which will replace ugly
> > guessing of endpoint capabilities basing on its name.
> > 
> > Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
> > ---
> >  include/linux/usb/gadget.h | 21 +++++++++++++++++++++
> >  1 file changed, 21 insertions(+)
> > 
> > diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h
> > index 68fb5e8..a9a4959 100644
> > --- a/include/linux/usb/gadget.h
> > +++ b/include/linux/usb/gadget.h
> > @@ -141,10 +141,29 @@ struct usb_ep_ops {
> >  };
> ...
> > +struct usb_ep_caps {
> > +	unsigned type_control:1;
> > +	unsigned type_iso:1;
> > +	unsigned type_bulk:1;
> > +	unsigned type_int:1;
> > +	unsigned dir_in:1;
> > +	unsigned dir_out:1;
> > +};
> 
> With the way this is used (eg below from 13/46)
> 
> +
> +		if (i == 0) {
> +			ep->ep.caps.type_control = true;
> +		} else {
> +			ep->ep.caps.type_iso = true;
> +			ep->ep.caps.type_bulk = true;
> +			ep->ep.caps.type_int = true;
> +		}
> +
> +		ep->ep.caps.dir_in = true;
> +		ep->ep.caps.dir_out = true;
> 
> I think it would be more obvious if you used a u8 and explicit bitmasks.
> The initialisation (as above) would the be explicitly assigning 'not supported'
> to the other fields.
> The compiler will also generate much better code...

compiler should convert single bit flags into u32 just fine. It's all
static data anyway. Besides, single bit flags allow us to have as many
as we need without ending up with stuff like:

u32 flags;
u32 flags1;
u32 flags2;

etc. Just let the compiler do those conversions for us.

-- 
balbi

[-- Attachment #1.2: Digital signature --]
[-- Type: application/pgp-signature, Size: 819 bytes --]

[-- Attachment #2: Type: text/plain, Size: 169 bytes --]

_______________________________________________
devel mailing list
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http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel

Re: [PATCH v5 02/46] usb: gadget: add endpoint capabilities flags

[Felipe Balbi]

[-- Attachment #1: Type: text/plain, Size: 2003 bytes --]

Hi,

On Fri, Jul 31, 2015 at 03:51:52PM +0000, David Laight wrote:
> From: Robert Baldyga
> > Sent: 31 July 2015 15:00
> > Introduce struct usb_ep_caps which contains information about capabilities
> > of usb endpoints - supported transfer types and directions. This structure
> > should be filled by UDC driver for each of its endpoints, and will be
> > used in epautoconf in new ep matching mechanism which will replace ugly
> > guessing of endpoint capabilities basing on its name.
> > 
> > Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
> > ---
> >  include/linux/usb/gadget.h | 21 +++++++++++++++++++++
> >  1 file changed, 21 insertions(+)
> > 
> > diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h
> > index 68fb5e8..a9a4959 100644
> > --- a/include/linux/usb/gadget.h
> > +++ b/include/linux/usb/gadget.h
> > @@ -141,10 +141,29 @@ struct usb_ep_ops {
> >  };
> ...
> > +struct usb_ep_caps {
> > +	unsigned type_control:1;
> > +	unsigned type_iso:1;
> > +	unsigned type_bulk:1;
> > +	unsigned type_int:1;
> > +	unsigned dir_in:1;
> > +	unsigned dir_out:1;
> > +};
> 
> With the way this is used (eg below from 13/46)
> 
> +
> +		if (i == 0) {
> +			ep->ep.caps.type_control = true;
> +		} else {
> +			ep->ep.caps.type_iso = true;
> +			ep->ep.caps.type_bulk = true;
> +			ep->ep.caps.type_int = true;
> +		}
> +
> +		ep->ep.caps.dir_in = true;
> +		ep->ep.caps.dir_out = true;
> 
> I think it would be more obvious if you used a u8 and explicit bitmasks.
> The initialisation (as above) would the be explicitly assigning 'not supported'
> to the other fields.
> The compiler will also generate much better code...

compiler should convert single bit flags into u32 just fine. It's all
static data anyway. Besides, single bit flags allow us to have as many
as we need without ending up with stuff like:

u32 flags;
u32 flags1;
u32 flags2;

etc. Just let the compiler do those conversions for us.

-- 
balbi

[-- Attachment #2: Digital signature --]
[-- Type: application/pgp-signature, Size: 819 bytes --]

[PATCH v5 02/46] usb: gadget: add endpoint capabilities flags

[Felipe Balbi]

Hi,

On Fri, Jul 31, 2015 at 03:51:52PM +0000, David Laight wrote:
> From: Robert Baldyga
> > Sent: 31 July 2015 15:00
> > Introduce struct usb_ep_caps which contains information about capabilities
> > of usb endpoints - supported transfer types and directions. This structure
> > should be filled by UDC driver for each of its endpoints, and will be
> > used in epautoconf in new ep matching mechanism which will replace ugly
> > guessing of endpoint capabilities basing on its name.
> > 
> > Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
> > ---
> >  include/linux/usb/gadget.h | 21 +++++++++++++++++++++
> >  1 file changed, 21 insertions(+)
> > 
> > diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h
> > index 68fb5e8..a9a4959 100644
> > --- a/include/linux/usb/gadget.h
> > +++ b/include/linux/usb/gadget.h
> > @@ -141,10 +141,29 @@ struct usb_ep_ops {
> >  };
> ...
> > +struct usb_ep_caps {
> > +	unsigned type_control:1;
> > +	unsigned type_iso:1;
> > +	unsigned type_bulk:1;
> > +	unsigned type_int:1;
> > +	unsigned dir_in:1;
> > +	unsigned dir_out:1;
> > +};
> 
> With the way this is used (eg below from 13/46)
> 
> +
> +		if (i == 0) {
> +			ep->ep.caps.type_control = true;
> +		} else {
> +			ep->ep.caps.type_iso = true;
> +			ep->ep.caps.type_bulk = true;
> +			ep->ep.caps.type_int = true;
> +		}
> +
> +		ep->ep.caps.dir_in = true;
> +		ep->ep.caps.dir_out = true;
> 
> I think it would be more obvious if you used a u8 and explicit bitmasks.
> The initialisation (as above) would the be explicitly assigning 'not supported'
> to the other fields.
> The compiler will also generate much better code...

compiler should convert single bit flags into u32 just fine. It's all
static data anyway. Besides, single bit flags allow us to have as many
as we need without ending up with stuff like:

u32 flags;
u32 flags1;
u32 flags2;

etc. Just let the compiler do those conversions for us.

-- 
balbi
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Re: [PATCH v5 07/46] usb: dwc3: gadget: add ep capabilities support

[Felipe Balbi]

[-- Attachment #1: Type: text/plain, Size: 1084 bytes --]

On Fri, Jul 31, 2015 at 04:00:19PM +0200, Robert Baldyga wrote:
> Convert endpoint configuration to new capabilities model.
> 
> Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
> ---
>  drivers/usb/dwc3/gadget.c | 13 +++++++++++++
>  1 file changed, 13 insertions(+)
> 
> diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
> index 2feed9e..bd4c3db 100644
> --- a/drivers/usb/dwc3/gadget.c
> +++ b/drivers/usb/dwc3/gadget.c
> @@ -1715,6 +1715,19 @@ static int dwc3_gadget_init_hw_endpoints(struct dwc3 *dwc,
>  				return ret;
>  		}
>  
> +		if (epnum == 0 || epnum == 1) {
> +			dep->endpoint.caps.type_control = true;
> +		} else {
> +			dep->endpoint.caps.type_iso = true;
> +			dep->endpoint.caps.type_bulk = true;
> +			dep->endpoint.caps.type_int = true;
> +		}
> +
> +		if (direction)
> +			dep->endpoint.caps.dir_in = true;
> +		else
> +			dep->endpoint.caps.dir_out = true;

you can avoid the branch for the direction:

		dep->endpoint.caps.dir_in = !!direction;
		dep->endpoint.caps.dir_out = !direction;

-- 
balbi

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Re: [PATCH v5 07/46] usb: dwc3: gadget: add ep capabilities support

[Felipe Balbi]

[-- Attachment #1.1: Type: text/plain, Size: 1084 bytes --]

On Fri, Jul 31, 2015 at 04:00:19PM +0200, Robert Baldyga wrote:
> Convert endpoint configuration to new capabilities model.
> 
> Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
> ---
>  drivers/usb/dwc3/gadget.c | 13 +++++++++++++
>  1 file changed, 13 insertions(+)
> 
> diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
> index 2feed9e..bd4c3db 100644
> --- a/drivers/usb/dwc3/gadget.c
> +++ b/drivers/usb/dwc3/gadget.c
> @@ -1715,6 +1715,19 @@ static int dwc3_gadget_init_hw_endpoints(struct dwc3 *dwc,
>  				return ret;
>  		}
>  
> +		if (epnum == 0 || epnum == 1) {
> +			dep->endpoint.caps.type_control = true;
> +		} else {
> +			dep->endpoint.caps.type_iso = true;
> +			dep->endpoint.caps.type_bulk = true;
> +			dep->endpoint.caps.type_int = true;
> +		}
> +
> +		if (direction)
> +			dep->endpoint.caps.dir_in = true;
> +		else
> +			dep->endpoint.caps.dir_out = true;

you can avoid the branch for the direction:

		dep->endpoint.caps.dir_in = !!direction;
		dep->endpoint.caps.dir_out = !direction;

-- 
balbi

[-- Attachment #1.2: Digital signature --]
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_______________________________________________
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[PATCH v5 07/46] usb: dwc3: gadget: add ep capabilities support

[Felipe Balbi]

On Fri, Jul 31, 2015 at 04:00:19PM +0200, Robert Baldyga wrote:
> Convert endpoint configuration to new capabilities model.
> 
> Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>
> ---
>  drivers/usb/dwc3/gadget.c | 13 +++++++++++++
>  1 file changed, 13 insertions(+)
> 
> diff --git a/drivers/usb/dwc3/gadget.c b/drivers/usb/dwc3/gadget.c
> index 2feed9e..bd4c3db 100644
> --- a/drivers/usb/dwc3/gadget.c
> +++ b/drivers/usb/dwc3/gadget.c
> @@ -1715,6 +1715,19 @@ static int dwc3_gadget_init_hw_endpoints(struct dwc3 *dwc,
>  				return ret;
>  		}
>  
> +		if (epnum == 0 || epnum == 1) {
> +			dep->endpoint.caps.type_control = true;
> +		} else {
> +			dep->endpoint.caps.type_iso = true;
> +			dep->endpoint.caps.type_bulk = true;
> +			dep->endpoint.caps.type_int = true;
> +		}
> +
> +		if (direction)
> +			dep->endpoint.caps.dir_in = true;
> +		else
> +			dep->endpoint.caps.dir_out = true;

you can avoid the branch for the direction:

		dep->endpoint.caps.dir_in = !!direction;
		dep->endpoint.caps.dir_out = !direction;

-- 
balbi
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Re: [PATCH v5 00/46] usb: gadget: rework ep matching and claiming mechanism

[Felipe Balbi]

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Hi,

On Fri, Jul 31, 2015 at 04:00:12PM +0200, Robert Baldyga wrote:
> Hello,
> 
> This patch series reworks endpoint matching and claiming mechanism in
> epautoconf. From v2 there are couple of new patches adding 'ep_match'
> to usb_gadget_ops and removing chip-specific quirk handling from generic
> code of autoconfig.
> 
> I'm not sure if this patch set isn't too long, as it has 46 patches,
> but I decided to send it as single series to avoid problems with patch
> applying order.
> 
> The aim of whole patchset is to rework epautoconf code to get rid of
> things like name-based endpoint matching and UDC name-based quirks in
> generic code. These needed to do some modifications in framework like
> adding 'endpoint capabilities flags' feature or adding 'match_ep'.
> 
> Following paragraphs contain brief description of what modifications are
> done by particular parts of this patch set:
> 
> Patch (1) introduces new safer endpoint claiming method, basing on new
> 'claimed' flag. It was discussed here [1]. I proposed this solution over
> year ago and it was accepted, but I apparently forgot to send the final
> version of my patch.
> 
> Patches (2-3) add the 'capabilities flags' structure and helper macros.
> This solution is inspired by the 'feature flags' originally proposed
> by Felipe Balbi in 2013 [2], but unfortunately implementation of this
> feature has never been completed.
> 
> Patches (4-36) add' capabilites flags' support to all UDC drivers present
> in the kernel tree. It's needed to be done before replacing old endpoint
> matching mechanism, otherwise UDC drivers which doesn't set 'capabilities
> flags' won't work with new matching function.
> 
> Patch (37) finally replaces old endpoint matching method with the new
> one basing on capabilities flags.
> 
> These changes aims to get rid of code, which guesses endpoint capabilities
> basing on it's name, and introduce new better replacement. In result
> we have better way to describe types and directions supported by each
> endpoint.
> 
> For example the old name-based method didn't allow to have endpoint
> supporing two types of transfers - there were only ability to support
> one or all of endpoint types. The 'capabilities flags' feature supply
> precise, flexible and extensible mechanism of description of endpoint
> hardware limitations, which is desired for proper endpoint matching.
> 
> Patch (38) removes chip-specific quirk from ep_matches() function.
> 
> Patches (39-40) remove code modifying endpoint and descriptor structures
> from ep_matches() function and cleans it up to make it simpler and more
> readable.
> 
> Patch (41) add 'match_ep' callback to usb_gadget_ops and make use of
> it in epautoconf. This callback allows UDC drivers to supply non-standard
> endpoint matching algorithms.
> 
> Patches (42-43) move ep_matches() and find_ep() functions outside
> epautoconf and rename them to usb_gadget_ep_match_desc() and
> gadget_find_ep_by_name(). It's because they may be useful in 'match_ep'
> callbacks in UDC drivers to avoid writing repetitive code.
> 
> Patches (44-46) move chip-specific enpoint matching algorithms from
> generic code of usb_ep_autoconfig_ss() function to UDC controller drivers
> using 'match_ep' callback.
> 
> In the result we have epautoconf source free of chip-specific code, plus
> two new mechanisms allowing to handle non-standard hardware limitations.
> 
> [1] https://lkml.org/lkml/2014/6/16/94
> [2] http://www.spinics.net/lists/linux-usb/msg99662.html

adding these to my testing/next after fixing a few build warnings and
the comment I had on dwc3 patch. Let's hope it just works :-)

-- 
balbi

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Re: [PATCH v5 00/46] usb: gadget: rework ep matching and claiming mechanism

[Felipe Balbi]

[-- Attachment #1.1: Type: text/plain, Size: 3732 bytes --]

Hi,

On Fri, Jul 31, 2015 at 04:00:12PM +0200, Robert Baldyga wrote:
> Hello,
> 
> This patch series reworks endpoint matching and claiming mechanism in
> epautoconf. From v2 there are couple of new patches adding 'ep_match'
> to usb_gadget_ops and removing chip-specific quirk handling from generic
> code of autoconfig.
> 
> I'm not sure if this patch set isn't too long, as it has 46 patches,
> but I decided to send it as single series to avoid problems with patch
> applying order.
> 
> The aim of whole patchset is to rework epautoconf code to get rid of
> things like name-based endpoint matching and UDC name-based quirks in
> generic code. These needed to do some modifications in framework like
> adding 'endpoint capabilities flags' feature or adding 'match_ep'.
> 
> Following paragraphs contain brief description of what modifications are
> done by particular parts of this patch set:
> 
> Patch (1) introduces new safer endpoint claiming method, basing on new
> 'claimed' flag. It was discussed here [1]. I proposed this solution over
> year ago and it was accepted, but I apparently forgot to send the final
> version of my patch.
> 
> Patches (2-3) add the 'capabilities flags' structure and helper macros.
> This solution is inspired by the 'feature flags' originally proposed
> by Felipe Balbi in 2013 [2], but unfortunately implementation of this
> feature has never been completed.
> 
> Patches (4-36) add' capabilites flags' support to all UDC drivers present
> in the kernel tree. It's needed to be done before replacing old endpoint
> matching mechanism, otherwise UDC drivers which doesn't set 'capabilities
> flags' won't work with new matching function.
> 
> Patch (37) finally replaces old endpoint matching method with the new
> one basing on capabilities flags.
> 
> These changes aims to get rid of code, which guesses endpoint capabilities
> basing on it's name, and introduce new better replacement. In result
> we have better way to describe types and directions supported by each
> endpoint.
> 
> For example the old name-based method didn't allow to have endpoint
> supporing two types of transfers - there were only ability to support
> one or all of endpoint types. The 'capabilities flags' feature supply
> precise, flexible and extensible mechanism of description of endpoint
> hardware limitations, which is desired for proper endpoint matching.
> 
> Patch (38) removes chip-specific quirk from ep_matches() function.
> 
> Patches (39-40) remove code modifying endpoint and descriptor structures
> from ep_matches() function and cleans it up to make it simpler and more
> readable.
> 
> Patch (41) add 'match_ep' callback to usb_gadget_ops and make use of
> it in epautoconf. This callback allows UDC drivers to supply non-standard
> endpoint matching algorithms.
> 
> Patches (42-43) move ep_matches() and find_ep() functions outside
> epautoconf and rename them to usb_gadget_ep_match_desc() and
> gadget_find_ep_by_name(). It's because they may be useful in 'match_ep'
> callbacks in UDC drivers to avoid writing repetitive code.
> 
> Patches (44-46) move chip-specific enpoint matching algorithms from
> generic code of usb_ep_autoconfig_ss() function to UDC controller drivers
> using 'match_ep' callback.
> 
> In the result we have epautoconf source free of chip-specific code, plus
> two new mechanisms allowing to handle non-standard hardware limitations.
> 
> [1] https://lkml.org/lkml/2014/6/16/94
> [2] http://www.spinics.net/lists/linux-usb/msg99662.html

adding these to my testing/next after fixing a few build warnings and
the comment I had on dwc3 patch. Let's hope it just works :-)

-- 
balbi

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[PATCH v5 00/46] usb: gadget: rework ep matching and claiming mechanism

[Felipe Balbi]

Hi,

On Fri, Jul 31, 2015 at 04:00:12PM +0200, Robert Baldyga wrote:
> Hello,
> 
> This patch series reworks endpoint matching and claiming mechanism in
> epautoconf. From v2 there are couple of new patches adding 'ep_match'
> to usb_gadget_ops and removing chip-specific quirk handling from generic
> code of autoconfig.
> 
> I'm not sure if this patch set isn't too long, as it has 46 patches,
> but I decided to send it as single series to avoid problems with patch
> applying order.
> 
> The aim of whole patchset is to rework epautoconf code to get rid of
> things like name-based endpoint matching and UDC name-based quirks in
> generic code. These needed to do some modifications in framework like
> adding 'endpoint capabilities flags' feature or adding 'match_ep'.
> 
> Following paragraphs contain brief description of what modifications are
> done by particular parts of this patch set:
> 
> Patch (1) introduces new safer endpoint claiming method, basing on new
> 'claimed' flag. It was discussed here [1]. I proposed this solution over
> year ago and it was accepted, but I apparently forgot to send the final
> version of my patch.
> 
> Patches (2-3) add the 'capabilities flags' structure and helper macros.
> This solution is inspired by the 'feature flags' originally proposed
> by Felipe Balbi in 2013 [2], but unfortunately implementation of this
> feature has never been completed.
> 
> Patches (4-36) add' capabilites flags' support to all UDC drivers present
> in the kernel tree. It's needed to be done before replacing old endpoint
> matching mechanism, otherwise UDC drivers which doesn't set 'capabilities
> flags' won't work with new matching function.
> 
> Patch (37) finally replaces old endpoint matching method with the new
> one basing on capabilities flags.
> 
> These changes aims to get rid of code, which guesses endpoint capabilities
> basing on it's name, and introduce new better replacement. In result
> we have better way to describe types and directions supported by each
> endpoint.
> 
> For example the old name-based method didn't allow to have endpoint
> supporing two types of transfers - there were only ability to support
> one or all of endpoint types. The 'capabilities flags' feature supply
> precise, flexible and extensible mechanism of description of endpoint
> hardware limitations, which is desired for proper endpoint matching.
> 
> Patch (38) removes chip-specific quirk from ep_matches() function.
> 
> Patches (39-40) remove code modifying endpoint and descriptor structures
> from ep_matches() function and cleans it up to make it simpler and more
> readable.
> 
> Patch (41) add 'match_ep' callback to usb_gadget_ops and make use of
> it in epautoconf. This callback allows UDC drivers to supply non-standard
> endpoint matching algorithms.
> 
> Patches (42-43) move ep_matches() and find_ep() functions outside
> epautoconf and rename them to usb_gadget_ep_match_desc() and
> gadget_find_ep_by_name(). It's because they may be useful in 'match_ep'
> callbacks in UDC drivers to avoid writing repetitive code.
> 
> Patches (44-46) move chip-specific enpoint matching algorithms from
> generic code of usb_ep_autoconfig_ss() function to UDC controller drivers
> using 'match_ep' callback.
> 
> In the result we have epautoconf source free of chip-specific code, plus
> two new mechanisms allowing to handle non-standard hardware limitations.
> 
> [1] https://lkml.org/lkml/2014/6/16/94
> [2] http://www.spinics.net/lists/linux-usb/msg99662.html

adding these to my testing/next after fixing a few build warnings and
the comment I had on dwc3 patch. Let's hope it just works :-)

-- 
balbi
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Re: [PATCH v5 40/46] usb: gadget: epautoconf: rework ep_matches() function

[Felipe Balbi]

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On Fri, Jul 31, 2015 at 04:00:52PM +0200, Robert Baldyga wrote:
> Rework ep_matches() function to make it shorter and more readable.
> 
> Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>

this regresses at least mass storage. How did you test it ? I'll keep
all patches up to this one, please fix the problem, rebase on
testing/next and resend the remaining patches.

cheers

-- 
balbi

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Re: [PATCH v5 40/46] usb: gadget: epautoconf: rework ep_matches() function

[Felipe Balbi]

[-- Attachment #1.1: Type: text/plain, Size: 404 bytes --]

On Fri, Jul 31, 2015 at 04:00:52PM +0200, Robert Baldyga wrote:
> Rework ep_matches() function to make it shorter and more readable.
> 
> Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>

this regresses at least mass storage. How did you test it ? I'll keep
all patches up to this one, please fix the problem, rebase on
testing/next and resend the remaining patches.

cheers

-- 
balbi

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_______________________________________________
devel mailing list
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http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel

[PATCH v5 40/46] usb: gadget: epautoconf: rework ep_matches() function

[Felipe Balbi]

On Fri, Jul 31, 2015 at 04:00:52PM +0200, Robert Baldyga wrote:
> Rework ep_matches() function to make it shorter and more readable.
> 
> Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>

this regresses at least mass storage. How did you test it ? I'll keep
all patches up to this one, please fix the problem, rebase on
testing/next and resend the remaining patches.

cheers

-- 
balbi
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Re: [PATCH v5 01/46] usb: gadget: encapsulate endpoint claiming mechanism

[Felipe Balbi]

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Hi,

On Fri, Jul 31, 2015 at 04:00:13PM +0200, Robert Baldyga wrote:
> So far it was necessary for usb functions to set ep->driver_data in
> endpoint obtained from autoconfig to non-null value, to indicate that
> endpoint is claimed by function (in autoconfig it was checked if endpoint
> has set this field to non-null value, and if it has, it was assumed that
> it is claimed). It could cause bugs because if some function doesn't
> set this field autoconfig could return the same endpoint more than one
> time.
> 
> To help to avoid such bugs this patch adds claimed flag to struct usb_ep,
> and  encapsulates endpoint claiming mechanism inside usb_ep_autoconfig_ss()
> and usb_ep_autoconfig_reset(), so now usb functions don't need to perform
> any additional actions to mark endpoint obtained from autoconfig as claimed.
> 
> Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>

just letting you know that this regresses all gadget drivers making them
try to disable previously disabled endpoints and enable previously
enabled endpoints.

I have a possible fix (see below) but then it shows a problem on the
host side when using with g_zero (see further below):

commit 3b8932100aacb6cfbffe288ca93025d8b8430c00
Author: Felipe Balbi <balbi@ti.com>
Date:   Wed Aug 19 18:05:27 2015 -0500

    usb: gadget: fix ep->claimed lifetime
    
    In order to fix a regression introduced by commit
    cc476b42a39d ("usb: gadget: encapsulate endpoint
    claiming mechanism") we have to introduce a simple
    helper to check if a particular is enabled or not.
    
    After that, we need to move ep->claimed lifetime to
    usb_ep_enable() and usb_ep_disable() since those
    are the only functions which actually enable and
    disable endpoints.
    
    A follow-up patch will come to drop all driver_data
    checks from function drivers, since those are, now,
    pointless.
    
    Fixes: cc476b42a39d ("usb: gadget: encapsulate endpoint
    	claiming mechanism")
    Cc: Robert Baldyga <r.baldyga@samsung.com>
    Signed-off-by: Felipe Balbi <balbi@ti.com>

diff --git a/drivers/usb/gadget/epautoconf.c b/drivers/usb/gadget/epautoconf.c
index 978435a51038..ad45070cd76f 100644
--- a/drivers/usb/gadget/epautoconf.c
+++ b/drivers/usb/gadget/epautoconf.c
@@ -126,7 +126,6 @@ found_ep:
 	ep->address = desc->bEndpointAddress;
 	ep->desc = NULL;
 	ep->comp_desc = NULL;
-	ep->claimed = true;
 	return ep;
 }
 EXPORT_SYMBOL_GPL(usb_ep_autoconfig_ss);
@@ -182,11 +181,6 @@ EXPORT_SYMBOL_GPL(usb_ep_autoconfig);
  */
 void usb_ep_autoconfig_reset (struct usb_gadget *gadget)
 {
-	struct usb_ep	*ep;
-
-	list_for_each_entry (ep, &gadget->ep_list, ep_list) {
-		ep->claimed = false;
-	}
 	gadget->in_epnum = 0;
 	gadget->out_epnum = 0;
 }
diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h
index c14a69b36d27..9b3d60c1cf9f 100644
--- a/include/linux/usb/gadget.h
+++ b/include/linux/usb/gadget.h
@@ -243,6 +243,22 @@ static inline void usb_ep_set_maxpacket_limit(struct usb_ep *ep,
 }
 
 /**
+ * usb_ep_enabled - is endpoint enabled ?
+ * @ep: the endpoint being checked. may not be the endpoint named "ep0".
+ *
+ * Whenever a function driver wants to check if a particular endpoint is
+ * enabled or not, it must check using this helper function. This will
+ * encapsulate details about how the endpoint is checked, saving the function
+ * driver from using private methods for doing so.
+ *
+ * return true if endpoint is enabled, false otherwise.
+ */
+static inline bool usb_ep_enabled(struct usb_ep *ep)
+{
+	return ep->claimed;
+}
+
+/**
  * usb_ep_enable - configure endpoint, making it usable
  * @ep:the endpoint being configured.  may not be the endpoint named "ep0".
  *	drivers discover endpoints through the ep_list of a usb_gadget.
@@ -264,7 +280,18 @@ static inline void usb_ep_set_maxpacket_limit(struct usb_ep *ep,
  */
 static inline int usb_ep_enable(struct usb_ep *ep)
 {
-	return ep->ops->enable(ep, ep->desc);
+	int ret;
+
+	if (usb_ep_enabled(ep))
+		return 0;
+
+	ret = ep->ops->enable(ep, ep->desc);
+	if (ret)
+		return ret;
+
+	ep->claimed = true;
+
+	return 0;
 }
 
 /**
@@ -281,7 +308,18 @@ static inline int usb_ep_enable(struct usb_ep *ep)
  */
 static inline int usb_ep_disable(struct usb_ep *ep)
 {
-	return ep->ops->disable(ep);
+	int ret;
+
+	if (!usb_ep_enabled(ep))
+		return 0;
+
+	ret = ep->ops->disable(ep);
+	if (ret)
+		return ret;
+
+	ep->claimed = false;
+
+	return 0;
 }
 
 /**



[   73.290345] WARNING: CPU: 0 PID: 300 at lib/kobject.c:240 kobject_add_internal+0x25c/0x2d8()
[   73.299172] kobject_add_internal failed for ep_81 with -EEXIST, don't try to register things with the same name in the same directory.
[   73.311825] Modules linked in: usbtest usb_f_ss_lb g_zero libcomposite xhci_plat_hcd xhci_hcd usbcore joydev dwc3 udc_core usb_common m25p80 evdev spi_nor omapfb cpufreq_dt cfbfillrect snd_soc_simple_card cfbimgblt thermal_sys cfbcopyarea hwmon leds_gpio matrix_keypad led_class matrix_keymap panel_dpi pwm_bl snd_soc_tlv320aic3x snd_soc_davinci_mcasp snd_soc_edma snd_soc_omap snd_soc_core omapdss snd_compress snd_pcm_dmaengine snd_pcm dwc3_omap extcon snd_timer pwm_tiecap snd lis3lv02d_i2c lis3lv02d soundcore  input_polldev spi_ti_qspi tps65218_pwrbutton rtc_omap omap_wdt phy_omap_usb2 autofs4
 [   73.367114] CPU: 0 PID: 300 Comm: testusb Tainted: G        W  4.2.0-rc7-next-20150819-00002-g3ccb6c8b6305 #1080
 [   73.378236] Hardware name: Generic AM43 (Flattened Device Tree)
 [   73.384439] [<c0016f14>] (unwind_backtrace) from [<c001339c>] (show_stack+0x10/0x14)
 [   73.392566] [<c001339c>] (show_stack) from [<c0636cec>] (dump_stack+0x84/0x9c)
 [   73.400164] [<c0636cec>] (dump_stack) from [<c003db48>] (warn_slowpath_common+0x78/0xb4)
 [   73.408649] [<c003db48>] (warn_slowpath_common) from [<c003dbb4>] (warn_slowpath_fmt+0x30/0x40)
 [   73.417783] [<c003dbb4>] (warn_slowpath_fmt) from [<c03473e4>] (kobject_add_internal+0x25c/0x2d8)
 [   73.427063] [<c03473e4>] (kobject_add_internal) from [<c03474ac>] (kobject_add+0x4c/0x98)
 [   73.435641] [<c03474ac>] (kobject_add) from [<c03d8a58>] (device_add+0xd4/0x56c)
 [   73.443466] [<c03d8a58>] (device_add) from [<bf2c17b0>] (usb_create_ep_devs+0x60/0xac [usbcore])
 [   73.452788] [<bf2c17b0>] (usb_create_ep_devs [usbcore]) from [<bf2bb210>] (create_intf_ep_devs+0x48/0x70 [usbcore])
 [   73.463801] [<bf2bb210>] (create_intf_ep_devs [usbcore]) from [<bf2bbae0>] (usb_set_interface+0x1c4/0x2f4 [usbcore])
 [   73.474891] [<bf2bbae0>] (usb_set_interface [usbcore]) from [<bf33d370>] (usbtest_ioctl+0x840/0x14c8 [usbtest])
 [   73.485659] [<bf33d370>] (usbtest_ioctl [usbtest]) from [<bf2c569c>] (usbdev_ioctl+0x1728/0x17fc [usbcore])
 [   73.495947] [<bf2c569c>] (usbdev_ioctl [usbcore]) from [<c0185764>] (do_vfs_ioctl+0x3f4/0x6c4)
 [   73.504989] [<c0185764>] (do_vfs_ioctl) from [<c0185aa0>] (SyS_ioctl+0x6c/0x7c)
 [   73.512662] [<c0185aa0>] (SyS_ioctl) from [<c000f540>] (ret_fast_syscall+0x0/0x54)
 [   73.520605] ---[ end trace 4576b2ea698fb13f ]---


-- 
balbi

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[-- Type: application/pgp-signature, Size: 819 bytes --]

Re: [PATCH v5 01/46] usb: gadget: encapsulate endpoint claiming mechanism

[Felipe Balbi]

[-- Attachment #1.1: Type: text/plain, Size: 7186 bytes --]

Hi,

On Fri, Jul 31, 2015 at 04:00:13PM +0200, Robert Baldyga wrote:
> So far it was necessary for usb functions to set ep->driver_data in
> endpoint obtained from autoconfig to non-null value, to indicate that
> endpoint is claimed by function (in autoconfig it was checked if endpoint
> has set this field to non-null value, and if it has, it was assumed that
> it is claimed). It could cause bugs because if some function doesn't
> set this field autoconfig could return the same endpoint more than one
> time.
> 
> To help to avoid such bugs this patch adds claimed flag to struct usb_ep,
> and  encapsulates endpoint claiming mechanism inside usb_ep_autoconfig_ss()
> and usb_ep_autoconfig_reset(), so now usb functions don't need to perform
> any additional actions to mark endpoint obtained from autoconfig as claimed.
> 
> Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>

just letting you know that this regresses all gadget drivers making them
try to disable previously disabled endpoints and enable previously
enabled endpoints.

I have a possible fix (see below) but then it shows a problem on the
host side when using with g_zero (see further below):

commit 3b8932100aacb6cfbffe288ca93025d8b8430c00
Author: Felipe Balbi <balbi@ti.com>
Date:   Wed Aug 19 18:05:27 2015 -0500

    usb: gadget: fix ep->claimed lifetime
    
    In order to fix a regression introduced by commit
    cc476b42a39d ("usb: gadget: encapsulate endpoint
    claiming mechanism") we have to introduce a simple
    helper to check if a particular is enabled or not.
    
    After that, we need to move ep->claimed lifetime to
    usb_ep_enable() and usb_ep_disable() since those
    are the only functions which actually enable and
    disable endpoints.
    
    A follow-up patch will come to drop all driver_data
    checks from function drivers, since those are, now,
    pointless.
    
    Fixes: cc476b42a39d ("usb: gadget: encapsulate endpoint
    	claiming mechanism")
    Cc: Robert Baldyga <r.baldyga@samsung.com>
    Signed-off-by: Felipe Balbi <balbi@ti.com>

diff --git a/drivers/usb/gadget/epautoconf.c b/drivers/usb/gadget/epautoconf.c
index 978435a51038..ad45070cd76f 100644
--- a/drivers/usb/gadget/epautoconf.c
+++ b/drivers/usb/gadget/epautoconf.c
@@ -126,7 +126,6 @@ found_ep:
 	ep->address = desc->bEndpointAddress;
 	ep->desc = NULL;
 	ep->comp_desc = NULL;
-	ep->claimed = true;
 	return ep;
 }
 EXPORT_SYMBOL_GPL(usb_ep_autoconfig_ss);
@@ -182,11 +181,6 @@ EXPORT_SYMBOL_GPL(usb_ep_autoconfig);
  */
 void usb_ep_autoconfig_reset (struct usb_gadget *gadget)
 {
-	struct usb_ep	*ep;
-
-	list_for_each_entry (ep, &gadget->ep_list, ep_list) {
-		ep->claimed = false;
-	}
 	gadget->in_epnum = 0;
 	gadget->out_epnum = 0;
 }
diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h
index c14a69b36d27..9b3d60c1cf9f 100644
--- a/include/linux/usb/gadget.h
+++ b/include/linux/usb/gadget.h
@@ -243,6 +243,22 @@ static inline void usb_ep_set_maxpacket_limit(struct usb_ep *ep,
 }
 
 /**
+ * usb_ep_enabled - is endpoint enabled ?
+ * @ep: the endpoint being checked. may not be the endpoint named "ep0".
+ *
+ * Whenever a function driver wants to check if a particular endpoint is
+ * enabled or not, it must check using this helper function. This will
+ * encapsulate details about how the endpoint is checked, saving the function
+ * driver from using private methods for doing so.
+ *
+ * return true if endpoint is enabled, false otherwise.
+ */
+static inline bool usb_ep_enabled(struct usb_ep *ep)
+{
+	return ep->claimed;
+}
+
+/**
  * usb_ep_enable - configure endpoint, making it usable
  * @ep:the endpoint being configured.  may not be the endpoint named "ep0".
  *	drivers discover endpoints through the ep_list of a usb_gadget.
@@ -264,7 +280,18 @@ static inline void usb_ep_set_maxpacket_limit(struct usb_ep *ep,
  */
 static inline int usb_ep_enable(struct usb_ep *ep)
 {
-	return ep->ops->enable(ep, ep->desc);
+	int ret;
+
+	if (usb_ep_enabled(ep))
+		return 0;
+
+	ret = ep->ops->enable(ep, ep->desc);
+	if (ret)
+		return ret;
+
+	ep->claimed = true;
+
+	return 0;
 }
 
 /**
@@ -281,7 +308,18 @@ static inline int usb_ep_enable(struct usb_ep *ep)
  */
 static inline int usb_ep_disable(struct usb_ep *ep)
 {
-	return ep->ops->disable(ep);
+	int ret;
+
+	if (!usb_ep_enabled(ep))
+		return 0;
+
+	ret = ep->ops->disable(ep);
+	if (ret)
+		return ret;
+
+	ep->claimed = false;
+
+	return 0;
 }
 
 /**



[   73.290345] WARNING: CPU: 0 PID: 300 at lib/kobject.c:240 kobject_add_internal+0x25c/0x2d8()
[   73.299172] kobject_add_internal failed for ep_81 with -EEXIST, don't try to register things with the same name in the same directory.
[   73.311825] Modules linked in: usbtest usb_f_ss_lb g_zero libcomposite xhci_plat_hcd xhci_hcd usbcore joydev dwc3 udc_core usb_common m25p80 evdev spi_nor omapfb cpufreq_dt cfbfillrect snd_soc_simple_card cfbimgblt thermal_sys cfbcopyarea hwmon leds_gpio matrix_keypad led_class matrix_keymap panel_dpi pwm_bl snd_soc_tlv320aic3x snd_soc_davinci_mcasp snd_soc_edma snd_soc_omap snd_soc_core omapdss snd_compress snd_pcm_dmaengine snd_pcm dwc3_omap extcon snd_timer pwm_tiecap snd lis3lv02d_i2c lis3lv02d soundcore  input_polldev spi_ti_qspi tps65218_pwrbutton rtc_omap omap_wdt phy_omap_usb2 autofs4
 [   73.367114] CPU: 0 PID: 300 Comm: testusb Tainted: G        W  4.2.0-rc7-next-20150819-00002-g3ccb6c8b6305 #1080
 [   73.378236] Hardware name: Generic AM43 (Flattened Device Tree)
 [   73.384439] [<c0016f14>] (unwind_backtrace) from [<c001339c>] (show_stack+0x10/0x14)
 [   73.392566] [<c001339c>] (show_stack) from [<c0636cec>] (dump_stack+0x84/0x9c)
 [   73.400164] [<c0636cec>] (dump_stack) from [<c003db48>] (warn_slowpath_common+0x78/0xb4)
 [   73.408649] [<c003db48>] (warn_slowpath_common) from [<c003dbb4>] (warn_slowpath_fmt+0x30/0x40)
 [   73.417783] [<c003dbb4>] (warn_slowpath_fmt) from [<c03473e4>] (kobject_add_internal+0x25c/0x2d8)
 [   73.427063] [<c03473e4>] (kobject_add_internal) from [<c03474ac>] (kobject_add+0x4c/0x98)
 [   73.435641] [<c03474ac>] (kobject_add) from [<c03d8a58>] (device_add+0xd4/0x56c)
 [   73.443466] [<c03d8a58>] (device_add) from [<bf2c17b0>] (usb_create_ep_devs+0x60/0xac [usbcore])
 [   73.452788] [<bf2c17b0>] (usb_create_ep_devs [usbcore]) from [<bf2bb210>] (create_intf_ep_devs+0x48/0x70 [usbcore])
 [   73.463801] [<bf2bb210>] (create_intf_ep_devs [usbcore]) from [<bf2bbae0>] (usb_set_interface+0x1c4/0x2f4 [usbcore])
 [   73.474891] [<bf2bbae0>] (usb_set_interface [usbcore]) from [<bf33d370>] (usbtest_ioctl+0x840/0x14c8 [usbtest])
 [   73.485659] [<bf33d370>] (usbtest_ioctl [usbtest]) from [<bf2c569c>] (usbdev_ioctl+0x1728/0x17fc [usbcore])
 [   73.495947] [<bf2c569c>] (usbdev_ioctl [usbcore]) from [<c0185764>] (do_vfs_ioctl+0x3f4/0x6c4)
 [   73.504989] [<c0185764>] (do_vfs_ioctl) from [<c0185aa0>] (SyS_ioctl+0x6c/0x7c)
 [   73.512662] [<c0185aa0>] (SyS_ioctl) from [<c000f540>] (ret_fast_syscall+0x0/0x54)
 [   73.520605] ---[ end trace 4576b2ea698fb13f ]---


-- 
balbi

[-- Attachment #1.2: Digital signature --]
[-- Type: application/pgp-signature, Size: 819 bytes --]

[-- Attachment #2: Type: text/plain, Size: 169 bytes --]

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[PATCH v5 01/46] usb: gadget: encapsulate endpoint claiming mechanism

[Felipe Balbi]

Hi,

On Fri, Jul 31, 2015 at 04:00:13PM +0200, Robert Baldyga wrote:
> So far it was necessary for usb functions to set ep->driver_data in
> endpoint obtained from autoconfig to non-null value, to indicate that
> endpoint is claimed by function (in autoconfig it was checked if endpoint
> has set this field to non-null value, and if it has, it was assumed that
> it is claimed). It could cause bugs because if some function doesn't
> set this field autoconfig could return the same endpoint more than one
> time.
> 
> To help to avoid such bugs this patch adds claimed flag to struct usb_ep,
> and  encapsulates endpoint claiming mechanism inside usb_ep_autoconfig_ss()
> and usb_ep_autoconfig_reset(), so now usb functions don't need to perform
> any additional actions to mark endpoint obtained from autoconfig as claimed.
> 
> Signed-off-by: Robert Baldyga <r.baldyga@samsung.com>

just letting you know that this regresses all gadget drivers making them
try to disable previously disabled endpoints and enable previously
enabled endpoints.

I have a possible fix (see below) but then it shows a problem on the
host side when using with g_zero (see further below):

commit 3b8932100aacb6cfbffe288ca93025d8b8430c00
Author: Felipe Balbi <balbi@ti.com>
Date:   Wed Aug 19 18:05:27 2015 -0500

    usb: gadget: fix ep->claimed lifetime
    
    In order to fix a regression introduced by commit
    cc476b42a39d ("usb: gadget: encapsulate endpoint
    claiming mechanism") we have to introduce a simple
    helper to check if a particular is enabled or not.
    
    After that, we need to move ep->claimed lifetime to
    usb_ep_enable() and usb_ep_disable() since those
    are the only functions which actually enable and
    disable endpoints.
    
    A follow-up patch will come to drop all driver_data
    checks from function drivers, since those are, now,
    pointless.
    
    Fixes: cc476b42a39d ("usb: gadget: encapsulate endpoint
    	claiming mechanism")
    Cc: Robert Baldyga <r.baldyga@samsung.com>
    Signed-off-by: Felipe Balbi <balbi@ti.com>

diff --git a/drivers/usb/gadget/epautoconf.c b/drivers/usb/gadget/epautoconf.c
index 978435a51038..ad45070cd76f 100644
--- a/drivers/usb/gadget/epautoconf.c
+++ b/drivers/usb/gadget/epautoconf.c
@@ -126,7 +126,6 @@ found_ep:
 	ep->address = desc->bEndpointAddress;
 	ep->desc = NULL;
 	ep->comp_desc = NULL;
-	ep->claimed = true;
 	return ep;
 }
 EXPORT_SYMBOL_GPL(usb_ep_autoconfig_ss);
@@ -182,11 +181,6 @@ EXPORT_SYMBOL_GPL(usb_ep_autoconfig);
  */
 void usb_ep_autoconfig_reset (struct usb_gadget *gadget)
 {
-	struct usb_ep	*ep;
-
-	list_for_each_entry (ep, &gadget->ep_list, ep_list) {
-		ep->claimed = false;
-	}
 	gadget->in_epnum = 0;
 	gadget->out_epnum = 0;
 }
diff --git a/include/linux/usb/gadget.h b/include/linux/usb/gadget.h
index c14a69b36d27..9b3d60c1cf9f 100644
--- a/include/linux/usb/gadget.h
+++ b/include/linux/usb/gadget.h
@@ -243,6 +243,22 @@ static inline void usb_ep_set_maxpacket_limit(struct usb_ep *ep,
 }
 
 /**
+ * usb_ep_enabled - is endpoint enabled ?
+ * @ep: the endpoint being checked. may not be the endpoint named "ep0".
+ *
+ * Whenever a function driver wants to check if a particular endpoint is
+ * enabled or not, it must check using this helper function. This will
+ * encapsulate details about how the endpoint is checked, saving the function
+ * driver from using private methods for doing so.
+ *
+ * return true if endpoint is enabled, false otherwise.
+ */
+static inline bool usb_ep_enabled(struct usb_ep *ep)
+{
+	return ep->claimed;
+}
+
+/**
  * usb_ep_enable - configure endpoint, making it usable
  * @ep:the endpoint being configured.  may not be the endpoint named "ep0".
  *	drivers discover endpoints through the ep_list of a usb_gadget.
@@ -264,7 +280,18 @@ static inline void usb_ep_set_maxpacket_limit(struct usb_ep *ep,
  */
 static inline int usb_ep_enable(struct usb_ep *ep)
 {
-	return ep->ops->enable(ep, ep->desc);
+	int ret;
+
+	if (usb_ep_enabled(ep))
+		return 0;
+
+	ret = ep->ops->enable(ep, ep->desc);
+	if (ret)
+		return ret;
+
+	ep->claimed = true;
+
+	return 0;
 }
 
 /**
@@ -281,7 +308,18 @@ static inline int usb_ep_enable(struct usb_ep *ep)
  */
 static inline int usb_ep_disable(struct usb_ep *ep)
 {
-	return ep->ops->disable(ep);
+	int ret;
+
+	if (!usb_ep_enabled(ep))
+		return 0;
+
+	ret = ep->ops->disable(ep);
+	if (ret)
+		return ret;
+
+	ep->claimed = false;
+
+	return 0;
 }
 
 /**



[   73.290345] WARNING: CPU: 0 PID: 300 at lib/kobject.c:240 kobject_add_internal+0x25c/0x2d8()
[   73.299172] kobject_add_internal failed for ep_81 with -EEXIST, don't try to register things with the same name in the same directory.
[   73.311825] Modules linked in: usbtest usb_f_ss_lb g_zero libcomposite xhci_plat_hcd xhci_hcd usbcore joydev dwc3 udc_core usb_common m25p80 evdev spi_nor omapfb cpufreq_dt cfbfillrect snd_soc_simple_card cfbimgblt thermal_sys cfbcopyarea hwmon leds_gpio matrix_keypad led_class matrix_keymap panel_dpi pwm_bl snd_soc_tlv320aic3x snd_soc_davinci_mcasp snd_soc_edma snd_soc_omap snd_soc_core omapdss snd_compress snd_pcm_dmaengine snd_pcm dwc3_omap extcon snd_timer pwm_tiecap snd lis3lv02d_i2c lis3lv02d soundcore  input_polldev spi_ti_qspi tps65218_pwrbutton rtc_omap omap_wdt phy_omap_usb2 autofs4
 [   73.367114] CPU: 0 PID: 300 Comm: testusb Tainted: G        W  4.2.0-rc7-next-20150819-00002-g3ccb6c8b6305 #1080
 [   73.378236] Hardware name: Generic AM43 (Flattened Device Tree)
 [   73.384439] [<c0016f14>] (unwind_backtrace) from [<c001339c>] (show_stack+0x10/0x14)
 [   73.392566] [<c001339c>] (show_stack) from [<c0636cec>] (dump_stack+0x84/0x9c)
 [   73.400164] [<c0636cec>] (dump_stack) from [<c003db48>] (warn_slowpath_common+0x78/0xb4)
 [   73.408649] [<c003db48>] (warn_slowpath_common) from [<c003dbb4>] (warn_slowpath_fmt+0x30/0x40)
 [   73.417783] [<c003dbb4>] (warn_slowpath_fmt) from [<c03473e4>] (kobject_add_internal+0x25c/0x2d8)
 [   73.427063] [<c03473e4>] (kobject_add_internal) from [<c03474ac>] (kobject_add+0x4c/0x98)
 [   73.435641] [<c03474ac>] (kobject_add) from [<c03d8a58>] (device_add+0xd4/0x56c)
 [   73.443466] [<c03d8a58>] (device_add) from [<bf2c17b0>] (usb_create_ep_devs+0x60/0xac [usbcore])
 [   73.452788] [<bf2c17b0>] (usb_create_ep_devs [usbcore]) from [<bf2bb210>] (create_intf_ep_devs+0x48/0x70 [usbcore])
 [   73.463801] [<bf2bb210>] (create_intf_ep_devs [usbcore]) from [<bf2bbae0>] (usb_set_interface+0x1c4/0x2f4 [usbcore])
 [   73.474891] [<bf2bbae0>] (usb_set_interface [usbcore]) from [<bf33d370>] (usbtest_ioctl+0x840/0x14c8 [usbtest])
 [   73.485659] [<bf33d370>] (usbtest_ioctl [usbtest]) from [<bf2c569c>] (usbdev_ioctl+0x1728/0x17fc [usbcore])
 [   73.495947] [<bf2c569c>] (usbdev_ioctl [usbcore]) from [<c0185764>] (do_vfs_ioctl+0x3f4/0x6c4)
 [   73.504989] [<c0185764>] (do_vfs_ioctl) from [<c0185aa0>] (SyS_ioctl+0x6c/0x7c)
 [   73.512662] [<c0185aa0>] (SyS_ioctl) from [<c000f540>] (ret_fast_syscall+0x0/0x54)
 [   73.520605] ---[ end trace 4576b2ea698fb13f ]---


-- 
balbi
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Re: [PATCH v5 01/46] usb: gadget: encapsulate endpoint claiming mechanism

[Robert Baldyga]

Hi Felipe,

On 08/20/2015 05:35 PM, Felipe Balbi wrote:
[...]
> just letting you know that this regresses all gadget drivers making them
> try to disable previously disabled endpoints and enable previously
> enabled endpoints.
>
> I have a possible fix (see below) but then it shows a problem on the
> host side when using with g_zero (see further below):
>
> commit 3b8932100aacb6cfbffe288ca93025d8b8430c00
> Author: Felipe Balbi <balbi@ti.com>
> Date:   Wed Aug 19 18:05:27 2015 -0500
>
>      usb: gadget: fix ep->claimed lifetime
>
>      In order to fix a regression introduced by commit
>      cc476b42a39d ("usb: gadget: encapsulate endpoint
>      claiming mechanism") we have to introduce a simple
>      helper to check if a particular is enabled or not.
>
>      After that, we need to move ep->claimed lifetime to
>      usb_ep_enable() and usb_ep_disable() since those
>      are the only functions which actually enable and
>      disable endpoints.
>
>      A follow-up patch will come to drop all driver_data
>      checks from function drivers, since those are, now,
>      pointless.
>
>      Fixes: cc476b42a39d ("usb: gadget: encapsulate endpoint
>      	claiming mechanism")
>      Cc: Robert Baldyga <r.baldyga@samsung.com>
>      Signed-off-by: Felipe Balbi <balbi@ti.com>
>
> diff --git a/drivers/usb/gadget/epautoconf.c b/drivers/usb/gadget/epautoconf.c
> index 978435a51038..ad45070cd76f 100644
> --- a/drivers/usb/gadget/epautoconf.c
> +++ b/drivers/usb/gadget/epautoconf.c
> @@ -126,7 +126,6 @@ found_ep:
>   	ep->address = desc->bEndpointAddress;
>   	ep->desc = NULL;
>   	ep->comp_desc = NULL;
> -	ep->claimed = true;

Removing this line causes autoconfig can return the same endpoint many 
times. This probably causes problems with g_zero.

I will try to fix it ASAP.

Thanks,
Robert

[PATCH v5 01/46] usb: gadget: encapsulate endpoint claiming mechanism

[Robert Baldyga]

Hi Felipe,

On 08/20/2015 05:35 PM, Felipe Balbi wrote:
[...]
> just letting you know that this regresses all gadget drivers making them
> try to disable previously disabled endpoints and enable previously
> enabled endpoints.
>
> I have a possible fix (see below) but then it shows a problem on the
> host side when using with g_zero (see further below):
>
> commit 3b8932100aacb6cfbffe288ca93025d8b8430c00
> Author: Felipe Balbi <balbi@ti.com>
> Date:   Wed Aug 19 18:05:27 2015 -0500
>
>      usb: gadget: fix ep->claimed lifetime
>
>      In order to fix a regression introduced by commit
>      cc476b42a39d ("usb: gadget: encapsulate endpoint
>      claiming mechanism") we have to introduce a simple
>      helper to check if a particular is enabled or not.
>
>      After that, we need to move ep->claimed lifetime to
>      usb_ep_enable() and usb_ep_disable() since those
>      are the only functions which actually enable and
>      disable endpoints.
>
>      A follow-up patch will come to drop all driver_data
>      checks from function drivers, since those are, now,
>      pointless.
>
>      Fixes: cc476b42a39d ("usb: gadget: encapsulate endpoint
>      	claiming mechanism")
>      Cc: Robert Baldyga <r.baldyga@samsung.com>
>      Signed-off-by: Felipe Balbi <balbi@ti.com>
>
> diff --git a/drivers/usb/gadget/epautoconf.c b/drivers/usb/gadget/epautoconf.c
> index 978435a51038..ad45070cd76f 100644
> --- a/drivers/usb/gadget/epautoconf.c
> +++ b/drivers/usb/gadget/epautoconf.c
> @@ -126,7 +126,6 @@ found_ep:
>   	ep->address = desc->bEndpointAddress;
>   	ep->desc = NULL;
>   	ep->comp_desc = NULL;
> -	ep->claimed = true;

Removing this line causes autoconfig can return the same endpoint many 
times. This probably causes problems with g_zero.

I will try to fix it ASAP.

Thanks,
Robert

Re: [PATCH v5 01/46] usb: gadget: encapsulate endpoint claiming mechanism

[Felipe Balbi]

[-- Attachment #1: Type: text/plain, Size: 2185 bytes --]

On Thu, Aug 20, 2015 at 06:28:14PM +0200, Robert Baldyga wrote:
> Hi Felipe,
> 
> On 08/20/2015 05:35 PM, Felipe Balbi wrote:
> [...]
> >just letting you know that this regresses all gadget drivers making them
> >try to disable previously disabled endpoints and enable previously
> >enabled endpoints.
> >
> >I have a possible fix (see below) but then it shows a problem on the
> >host side when using with g_zero (see further below):
> >
> >commit 3b8932100aacb6cfbffe288ca93025d8b8430c00
> >Author: Felipe Balbi <balbi@ti.com>
> >Date:   Wed Aug 19 18:05:27 2015 -0500
> >
> >     usb: gadget: fix ep->claimed lifetime
> >
> >     In order to fix a regression introduced by commit
> >     cc476b42a39d ("usb: gadget: encapsulate endpoint
> >     claiming mechanism") we have to introduce a simple
> >     helper to check if a particular is enabled or not.
> >
> >     After that, we need to move ep->claimed lifetime to
> >     usb_ep_enable() and usb_ep_disable() since those
> >     are the only functions which actually enable and
> >     disable endpoints.
> >
> >     A follow-up patch will come to drop all driver_data
> >     checks from function drivers, since those are, now,
> >     pointless.
> >
> >     Fixes: cc476b42a39d ("usb: gadget: encapsulate endpoint
> >     	claiming mechanism")
> >     Cc: Robert Baldyga <r.baldyga@samsung.com>
> >     Signed-off-by: Felipe Balbi <balbi@ti.com>
> >
> >diff --git a/drivers/usb/gadget/epautoconf.c b/drivers/usb/gadget/epautoconf.c
> >index 978435a51038..ad45070cd76f 100644
> >--- a/drivers/usb/gadget/epautoconf.c
> >+++ b/drivers/usb/gadget/epautoconf.c
> >@@ -126,7 +126,6 @@ found_ep:
> >  	ep->address = desc->bEndpointAddress;
> >  	ep->desc = NULL;
> >  	ep->comp_desc = NULL;
> >-	ep->claimed = true;
> 
> Removing this line causes autoconfig can return the same endpoint many
> times. This probably causes problems with g_zero.
> 
> I will try to fix it ASAP.

I was considering the same thing, but the lifetime of ->claimed doesn't
look correct to me either way. Note that once the flag is enabled, it
won't get disabled by most gadget drivers.

-- 
balbi

[-- Attachment #2: Digital signature --]
[-- Type: application/pgp-signature, Size: 819 bytes --]

Re: [PATCH v5 01/46] usb: gadget: encapsulate endpoint claiming mechanism

[Felipe Balbi]

[-- Attachment #1.1: Type: text/plain, Size: 2185 bytes --]

On Thu, Aug 20, 2015 at 06:28:14PM +0200, Robert Baldyga wrote:
> Hi Felipe,
> 
> On 08/20/2015 05:35 PM, Felipe Balbi wrote:
> [...]
> >just letting you know that this regresses all gadget drivers making them
> >try to disable previously disabled endpoints and enable previously
> >enabled endpoints.
> >
> >I have a possible fix (see below) but then it shows a problem on the
> >host side when using with g_zero (see further below):
> >
> >commit 3b8932100aacb6cfbffe288ca93025d8b8430c00
> >Author: Felipe Balbi <balbi@ti.com>
> >Date:   Wed Aug 19 18:05:27 2015 -0500
> >
> >     usb: gadget: fix ep->claimed lifetime
> >
> >     In order to fix a regression introduced by commit
> >     cc476b42a39d ("usb: gadget: encapsulate endpoint
> >     claiming mechanism") we have to introduce a simple
> >     helper to check if a particular is enabled or not.
> >
> >     After that, we need to move ep->claimed lifetime to
> >     usb_ep_enable() and usb_ep_disable() since those
> >     are the only functions which actually enable and
> >     disable endpoints.
> >
> >     A follow-up patch will come to drop all driver_data
> >     checks from function drivers, since those are, now,
> >     pointless.
> >
> >     Fixes: cc476b42a39d ("usb: gadget: encapsulate endpoint
> >     	claiming mechanism")
> >     Cc: Robert Baldyga <r.baldyga@samsung.com>
> >     Signed-off-by: Felipe Balbi <balbi@ti.com>
> >
> >diff --git a/drivers/usb/gadget/epautoconf.c b/drivers/usb/gadget/epautoconf.c
> >index 978435a51038..ad45070cd76f 100644
> >--- a/drivers/usb/gadget/epautoconf.c
> >+++ b/drivers/usb/gadget/epautoconf.c
> >@@ -126,7 +126,6 @@ found_ep:
> >  	ep->address = desc->bEndpointAddress;
> >  	ep->desc = NULL;
> >  	ep->comp_desc = NULL;
> >-	ep->claimed = true;
> 
> Removing this line causes autoconfig can return the same endpoint many
> times. This probably causes problems with g_zero.
> 
> I will try to fix it ASAP.

I was considering the same thing, but the lifetime of ->claimed doesn't
look correct to me either way. Note that once the flag is enabled, it
won't get disabled by most gadget drivers.

-- 
balbi

[-- Attachment #1.2: Digital signature --]
[-- Type: application/pgp-signature, Size: 819 bytes --]

[-- Attachment #2: Type: text/plain, Size: 169 bytes --]

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[PATCH v5 01/46] usb: gadget: encapsulate endpoint claiming mechanism

[Felipe Balbi]

On Thu, Aug 20, 2015 at 06:28:14PM +0200, Robert Baldyga wrote:
> Hi Felipe,
> 
> On 08/20/2015 05:35 PM, Felipe Balbi wrote:
> [...]
> >just letting you know that this regresses all gadget drivers making them
> >try to disable previously disabled endpoints and enable previously
> >enabled endpoints.
> >
> >I have a possible fix (see below) but then it shows a problem on the
> >host side when using with g_zero (see further below):
> >
> >commit 3b8932100aacb6cfbffe288ca93025d8b8430c00
> >Author: Felipe Balbi <balbi@ti.com>
> >Date:   Wed Aug 19 18:05:27 2015 -0500
> >
> >     usb: gadget: fix ep->claimed lifetime
> >
> >     In order to fix a regression introduced by commit
> >     cc476b42a39d ("usb: gadget: encapsulate endpoint
> >     claiming mechanism") we have to introduce a simple
> >     helper to check if a particular is enabled or not.
> >
> >     After that, we need to move ep->claimed lifetime to
> >     usb_ep_enable() and usb_ep_disable() since those
> >     are the only functions which actually enable and
> >     disable endpoints.
> >
> >     A follow-up patch will come to drop all driver_data
> >     checks from function drivers, since those are, now,
> >     pointless.
> >
> >     Fixes: cc476b42a39d ("usb: gadget: encapsulate endpoint
> >     	claiming mechanism")
> >     Cc: Robert Baldyga <r.baldyga@samsung.com>
> >     Signed-off-by: Felipe Balbi <balbi@ti.com>
> >
> >diff --git a/drivers/usb/gadget/epautoconf.c b/drivers/usb/gadget/epautoconf.c
> >index 978435a51038..ad45070cd76f 100644
> >--- a/drivers/usb/gadget/epautoconf.c
> >+++ b/drivers/usb/gadget/epautoconf.c
> >@@ -126,7 +126,6 @@ found_ep:
> >  	ep->address = desc->bEndpointAddress;
> >  	ep->desc = NULL;
> >  	ep->comp_desc = NULL;
> >-	ep->claimed = true;
> 
> Removing this line causes autoconfig can return the same endpoint many
> times. This probably causes problems with g_zero.
> 
> I will try to fix it ASAP.

I was considering the same thing, but the lifetime of ->claimed doesn't
look correct to me either way. Note that once the flag is enabled, it
won't get disabled by most gadget drivers.

-- 
balbi
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Re: [PATCH v5 01/46] usb: gadget: encapsulate endpoint claiming mechanism

[Robert Baldyga]

On 08/20/2015 06:48 PM, Felipe Balbi wrote:
> On Thu, Aug 20, 2015 at 06:28:14PM +0200, Robert Baldyga wrote:
>> Hi Felipe,
>>
>> On 08/20/2015 05:35 PM, Felipe Balbi wrote:
>> [...]
>>> just letting you know that this regresses all gadget drivers making them
>>> try to disable previously disabled endpoints and enable previously
>>> enabled endpoints.
>>>
>>> I have a possible fix (see below) but then it shows a problem on the
>>> host side when using with g_zero (see further below):
>>>
>>> commit 3b8932100aacb6cfbffe288ca93025d8b8430c00
>>> Author: Felipe Balbi <balbi@ti.com>
>>> Date:   Wed Aug 19 18:05:27 2015 -0500
>>>
>>>      usb: gadget: fix ep->claimed lifetime
>>>
>>>      In order to fix a regression introduced by commit
>>>      cc476b42a39d ("usb: gadget: encapsulate endpoint
>>>      claiming mechanism") we have to introduce a simple
>>>      helper to check if a particular is enabled or not.
>>>
>>>      After that, we need to move ep->claimed lifetime to
>>>      usb_ep_enable() and usb_ep_disable() since those
>>>      are the only functions which actually enable and
>>>      disable endpoints.
>>>
>>>      A follow-up patch will come to drop all driver_data
>>>      checks from function drivers, since those are, now,
>>>      pointless.
>>>
>>>      Fixes: cc476b42a39d ("usb: gadget: encapsulate endpoint
>>>      	claiming mechanism")
>>>      Cc: Robert Baldyga <r.baldyga@samsung.com>
>>>      Signed-off-by: Felipe Balbi <balbi@ti.com>
>>>
>>> diff --git a/drivers/usb/gadget/epautoconf.c b/drivers/usb/gadget/epautoconf.c
>>> index 978435a51038..ad45070cd76f 100644
>>> --- a/drivers/usb/gadget/epautoconf.c
>>> +++ b/drivers/usb/gadget/epautoconf.c
>>> @@ -126,7 +126,6 @@ found_ep:
>>>   	ep->address = desc->bEndpointAddress;
>>>   	ep->desc = NULL;
>>>   	ep->comp_desc = NULL;
>>> -	ep->claimed = true;
>>
>> Removing this line causes autoconfig can return the same endpoint many
>> times. This probably causes problems with g_zero.
>>
>> I will try to fix it ASAP.
>
> I was considering the same thing, but the lifetime of ->claimed doesn't
> look correct to me either way. Note that once the flag is enabled, it
> won't get disabled by most gadget drivers.

And it should not be. This flag is indicator, that endpoint is used by 
some function. It should be set once by usb_ep_autoconfig() and cleared 
by usb_ep_autoconfig_reset().

I wonder what is reason of this enable/disable regression. Maybe the 
problem is that we don't set ep->driver_data to NULL in 
usb_ep_autoconfig_reset() (so far it was done). Does this problem occur 
while gadget is binded to UDC for the first time, or at any next time? 
Unfortunately at this moment I don't have access to my hardware, so it 
will take a moment before I will setup some testing environment.

Thanks,
Robert

Re: [PATCH v5 01/46] usb: gadget: encapsulate endpoint claiming mechanism

[Robert Baldyga]

On 08/20/2015 06:48 PM, Felipe Balbi wrote:
> On Thu, Aug 20, 2015 at 06:28:14PM +0200, Robert Baldyga wrote:
>> Hi Felipe,
>>
>> On 08/20/2015 05:35 PM, Felipe Balbi wrote:
>> [...]
>>> just letting you know that this regresses all gadget drivers making them
>>> try to disable previously disabled endpoints and enable previously
>>> enabled endpoints.
>>>
>>> I have a possible fix (see below) but then it shows a problem on the
>>> host side when using with g_zero (see further below):
>>>
>>> commit 3b8932100aacb6cfbffe288ca93025d8b8430c00
>>> Author: Felipe Balbi <balbi@ti.com>
>>> Date:   Wed Aug 19 18:05:27 2015 -0500
>>>
>>>      usb: gadget: fix ep->claimed lifetime
>>>
>>>      In order to fix a regression introduced by commit
>>>      cc476b42a39d ("usb: gadget: encapsulate endpoint
>>>      claiming mechanism") we have to introduce a simple
>>>      helper to check if a particular is enabled or not.
>>>
>>>      After that, we need to move ep->claimed lifetime to
>>>      usb_ep_enable() and usb_ep_disable() since those
>>>      are the only functions which actually enable and
>>>      disable endpoints.
>>>
>>>      A follow-up patch will come to drop all driver_data
>>>      checks from function drivers, since those are, now,
>>>      pointless.
>>>
>>>      Fixes: cc476b42a39d ("usb: gadget: encapsulate endpoint
>>>      	claiming mechanism")
>>>      Cc: Robert Baldyga <r.baldyga@samsung.com>
>>>      Signed-off-by: Felipe Balbi <balbi@ti.com>
>>>
>>> diff --git a/drivers/usb/gadget/epautoconf.c b/drivers/usb/gadget/epautoconf.c
>>> index 978435a51038..ad45070cd76f 100644
>>> --- a/drivers/usb/gadget/epautoconf.c
>>> +++ b/drivers/usb/gadget/epautoconf.c
>>> @@ -126,7 +126,6 @@ found_ep:
>>>   	ep->address = desc->bEndpointAddress;
>>>   	ep->desc = NULL;
>>>   	ep->comp_desc = NULL;
>>> -	ep->claimed = true;
>>
>> Removing this line causes autoconfig can return the same endpoint many
>> times. This probably causes problems with g_zero.
>>
>> I will try to fix it ASAP.
>
> I was considering the same thing, but the lifetime of ->claimed doesn't
> look correct to me either way. Note that once the flag is enabled, it
> won't get disabled by most gadget drivers.

And it should not be. This flag is indicator, that endpoint is used by 
some function. It should be set once by usb_ep_autoconfig() and cleared 
by usb_ep_autoconfig_reset().

I wonder what is reason of this enable/disable regression. Maybe the 
problem is that we don't set ep->driver_data to NULL in 
usb_ep_autoconfig_reset() (so far it was done). Does this problem occur 
while gadget is binded to UDC for the first time, or at any next time? 
Unfortunately at this moment I don't have access to my hardware, so it 
will take a moment before I will setup some testing environment.

Thanks,
Robert

[PATCH v5 01/46] usb: gadget: encapsulate endpoint claiming mechanism

[Robert Baldyga]

On 08/20/2015 06:48 PM, Felipe Balbi wrote:
> On Thu, Aug 20, 2015 at 06:28:14PM +0200, Robert Baldyga wrote:
>> Hi Felipe,
>>
>> On 08/20/2015 05:35 PM, Felipe Balbi wrote:
>> [...]
>>> just letting you know that this regresses all gadget drivers making them
>>> try to disable previously disabled endpoints and enable previously
>>> enabled endpoints.
>>>
>>> I have a possible fix (see below) but then it shows a problem on the
>>> host side when using with g_zero (see further below):
>>>
>>> commit 3b8932100aacb6cfbffe288ca93025d8b8430c00
>>> Author: Felipe Balbi <balbi@ti.com>
>>> Date:   Wed Aug 19 18:05:27 2015 -0500
>>>
>>>      usb: gadget: fix ep->claimed lifetime
>>>
>>>      In order to fix a regression introduced by commit
>>>      cc476b42a39d ("usb: gadget: encapsulate endpoint
>>>      claiming mechanism") we have to introduce a simple
>>>      helper to check if a particular is enabled or not.
>>>
>>>      After that, we need to move ep->claimed lifetime to
>>>      usb_ep_enable() and usb_ep_disable() since those
>>>      are the only functions which actually enable and
>>>      disable endpoints.
>>>
>>>      A follow-up patch will come to drop all driver_data
>>>      checks from function drivers, since those are, now,
>>>      pointless.
>>>
>>>      Fixes: cc476b42a39d ("usb: gadget: encapsulate endpoint
>>>      	claiming mechanism")
>>>      Cc: Robert Baldyga <r.baldyga@samsung.com>
>>>      Signed-off-by: Felipe Balbi <balbi@ti.com>
>>>
>>> diff --git a/drivers/usb/gadget/epautoconf.c b/drivers/usb/gadget/epautoconf.c
>>> index 978435a51038..ad45070cd76f 100644
>>> --- a/drivers/usb/gadget/epautoconf.c
>>> +++ b/drivers/usb/gadget/epautoconf.c
>>> @@ -126,7 +126,6 @@ found_ep:
>>>   	ep->address = desc->bEndpointAddress;
>>>   	ep->desc = NULL;
>>>   	ep->comp_desc = NULL;
>>> -	ep->claimed = true;
>>
>> Removing this line causes autoconfig can return the same endpoint many
>> times. This probably causes problems with g_zero.
>>
>> I will try to fix it ASAP.
>
> I was considering the same thing, but the lifetime of ->claimed doesn't
> look correct to me either way. Note that once the flag is enabled, it
> won't get disabled by most gadget drivers.

And it should not be. This flag is indicator, that endpoint is used by 
some function. It should be set once by usb_ep_autoconfig() and cleared 
by usb_ep_autoconfig_reset().

I wonder what is reason of this enable/disable regression. Maybe the 
problem is that we don't set ep->driver_data to NULL in 
usb_ep_autoconfig_reset() (so far it was done). Does this problem occur 
while gadget is binded to UDC for the first time, or at any next time? 
Unfortunately at this moment I don't have access to my hardware, so it 
will take a moment before I will setup some testing environment.

Thanks,
Robert

Re: [PATCH v5 01/46] usb: gadget: encapsulate endpoint claiming mechanism

[Felipe Balbi]

[-- Attachment #1: Type: text/plain, Size: 3139 bytes --]

Hi,

On Thu, Aug 20, 2015 at 07:16:48PM +0200, Robert Baldyga wrote:
> On 08/20/2015 06:48 PM, Felipe Balbi wrote:
> >On Thu, Aug 20, 2015 at 06:28:14PM +0200, Robert Baldyga wrote:
> >>Hi Felipe,
> >>
> >>On 08/20/2015 05:35 PM, Felipe Balbi wrote:
> >>[...]
> >>>just letting you know that this regresses all gadget drivers making them
> >>>try to disable previously disabled endpoints and enable previously
> >>>enabled endpoints.
> >>>
> >>>I have a possible fix (see below) but then it shows a problem on the
> >>>host side when using with g_zero (see further below):
> >>>
> >>>commit 3b8932100aacb6cfbffe288ca93025d8b8430c00
> >>>Author: Felipe Balbi <balbi@ti.com>
> >>>Date:   Wed Aug 19 18:05:27 2015 -0500
> >>>
> >>>     usb: gadget: fix ep->claimed lifetime
> >>>
> >>>     In order to fix a regression introduced by commit
> >>>     cc476b42a39d ("usb: gadget: encapsulate endpoint
> >>>     claiming mechanism") we have to introduce a simple
> >>>     helper to check if a particular is enabled or not.
> >>>
> >>>     After that, we need to move ep->claimed lifetime to
> >>>     usb_ep_enable() and usb_ep_disable() since those
> >>>     are the only functions which actually enable and
> >>>     disable endpoints.
> >>>
> >>>     A follow-up patch will come to drop all driver_data
> >>>     checks from function drivers, since those are, now,
> >>>     pointless.
> >>>
> >>>     Fixes: cc476b42a39d ("usb: gadget: encapsulate endpoint
> >>>     	claiming mechanism")
> >>>     Cc: Robert Baldyga <r.baldyga@samsung.com>
> >>>     Signed-off-by: Felipe Balbi <balbi@ti.com>
> >>>
> >>>diff --git a/drivers/usb/gadget/epautoconf.c b/drivers/usb/gadget/epautoconf.c
> >>>index 978435a51038..ad45070cd76f 100644
> >>>--- a/drivers/usb/gadget/epautoconf.c
> >>>+++ b/drivers/usb/gadget/epautoconf.c
> >>>@@ -126,7 +126,6 @@ found_ep:
> >>>  	ep->address = desc->bEndpointAddress;
> >>>  	ep->desc = NULL;
> >>>  	ep->comp_desc = NULL;
> >>>-	ep->claimed = true;
> >>
> >>Removing this line causes autoconfig can return the same endpoint many
> >>times. This probably causes problems with g_zero.
> >>
> >>I will try to fix it ASAP.
> >
> >I was considering the same thing, but the lifetime of ->claimed doesn't
> >look correct to me either way. Note that once the flag is enabled, it
> >won't get disabled by most gadget drivers.
> 
> And it should not be. This flag is indicator, that endpoint is used by some
> function. It should be set once by usb_ep_autoconfig() and cleared by
> usb_ep_autoconfig_reset().

have you considered switching interfaces and/or alternate settings ?

> I wonder what is reason of this enable/disable regression. Maybe the problem
> is that we don't set ep->driver_data to NULL in usb_ep_autoconfig_reset()
> (so far it was done). Does this problem occur while gadget is binded to UDC
> for the first time, or at any next time? Unfortunately at this moment I
> don't have access to my hardware, so it will take a moment before I will
> setup some testing environment.

yeah, that's okay. We've got time.

-- 
balbi

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Re: [PATCH v5 01/46] usb: gadget: encapsulate endpoint claiming mechanism

[Felipe Balbi]

[-- Attachment #1.1: Type: text/plain, Size: 3139 bytes --]

Hi,

On Thu, Aug 20, 2015 at 07:16:48PM +0200, Robert Baldyga wrote:
> On 08/20/2015 06:48 PM, Felipe Balbi wrote:
> >On Thu, Aug 20, 2015 at 06:28:14PM +0200, Robert Baldyga wrote:
> >>Hi Felipe,
> >>
> >>On 08/20/2015 05:35 PM, Felipe Balbi wrote:
> >>[...]
> >>>just letting you know that this regresses all gadget drivers making them
> >>>try to disable previously disabled endpoints and enable previously
> >>>enabled endpoints.
> >>>
> >>>I have a possible fix (see below) but then it shows a problem on the
> >>>host side when using with g_zero (see further below):
> >>>
> >>>commit 3b8932100aacb6cfbffe288ca93025d8b8430c00
> >>>Author: Felipe Balbi <balbi@ti.com>
> >>>Date:   Wed Aug 19 18:05:27 2015 -0500
> >>>
> >>>     usb: gadget: fix ep->claimed lifetime
> >>>
> >>>     In order to fix a regression introduced by commit
> >>>     cc476b42a39d ("usb: gadget: encapsulate endpoint
> >>>     claiming mechanism") we have to introduce a simple
> >>>     helper to check if a particular is enabled or not.
> >>>
> >>>     After that, we need to move ep->claimed lifetime to
> >>>     usb_ep_enable() and usb_ep_disable() since those
> >>>     are the only functions which actually enable and
> >>>     disable endpoints.
> >>>
> >>>     A follow-up patch will come to drop all driver_data
> >>>     checks from function drivers, since those are, now,
> >>>     pointless.
> >>>
> >>>     Fixes: cc476b42a39d ("usb: gadget: encapsulate endpoint
> >>>     	claiming mechanism")
> >>>     Cc: Robert Baldyga <r.baldyga@samsung.com>
> >>>     Signed-off-by: Felipe Balbi <balbi@ti.com>
> >>>
> >>>diff --git a/drivers/usb/gadget/epautoconf.c b/drivers/usb/gadget/epautoconf.c
> >>>index 978435a51038..ad45070cd76f 100644
> >>>--- a/drivers/usb/gadget/epautoconf.c
> >>>+++ b/drivers/usb/gadget/epautoconf.c
> >>>@@ -126,7 +126,6 @@ found_ep:
> >>>  	ep->address = desc->bEndpointAddress;
> >>>  	ep->desc = NULL;
> >>>  	ep->comp_desc = NULL;
> >>>-	ep->claimed = true;
> >>
> >>Removing this line causes autoconfig can return the same endpoint many
> >>times. This probably causes problems with g_zero.
> >>
> >>I will try to fix it ASAP.
> >
> >I was considering the same thing, but the lifetime of ->claimed doesn't
> >look correct to me either way. Note that once the flag is enabled, it
> >won't get disabled by most gadget drivers.
> 
> And it should not be. This flag is indicator, that endpoint is used by some
> function. It should be set once by usb_ep_autoconfig() and cleared by
> usb_ep_autoconfig_reset().

have you considered switching interfaces and/or alternate settings ?

> I wonder what is reason of this enable/disable regression. Maybe the problem
> is that we don't set ep->driver_data to NULL in usb_ep_autoconfig_reset()
> (so far it was done). Does this problem occur while gadget is binded to UDC
> for the first time, or at any next time? Unfortunately at this moment I
> don't have access to my hardware, so it will take a moment before I will
> setup some testing environment.

yeah, that's okay. We've got time.

-- 
balbi

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[PATCH v5 01/46] usb: gadget: encapsulate endpoint claiming mechanism

[Felipe Balbi]

Hi,

On Thu, Aug 20, 2015 at 07:16:48PM +0200, Robert Baldyga wrote:
> On 08/20/2015 06:48 PM, Felipe Balbi wrote:
> >On Thu, Aug 20, 2015 at 06:28:14PM +0200, Robert Baldyga wrote:
> >>Hi Felipe,
> >>
> >>On 08/20/2015 05:35 PM, Felipe Balbi wrote:
> >>[...]
> >>>just letting you know that this regresses all gadget drivers making them
> >>>try to disable previously disabled endpoints and enable previously
> >>>enabled endpoints.
> >>>
> >>>I have a possible fix (see below) but then it shows a problem on the
> >>>host side when using with g_zero (see further below):
> >>>
> >>>commit 3b8932100aacb6cfbffe288ca93025d8b8430c00
> >>>Author: Felipe Balbi <balbi@ti.com>
> >>>Date:   Wed Aug 19 18:05:27 2015 -0500
> >>>
> >>>     usb: gadget: fix ep->claimed lifetime
> >>>
> >>>     In order to fix a regression introduced by commit
> >>>     cc476b42a39d ("usb: gadget: encapsulate endpoint
> >>>     claiming mechanism") we have to introduce a simple
> >>>     helper to check if a particular is enabled or not.
> >>>
> >>>     After that, we need to move ep->claimed lifetime to
> >>>     usb_ep_enable() and usb_ep_disable() since those
> >>>     are the only functions which actually enable and
> >>>     disable endpoints.
> >>>
> >>>     A follow-up patch will come to drop all driver_data
> >>>     checks from function drivers, since those are, now,
> >>>     pointless.
> >>>
> >>>     Fixes: cc476b42a39d ("usb: gadget: encapsulate endpoint
> >>>     	claiming mechanism")
> >>>     Cc: Robert Baldyga <r.baldyga@samsung.com>
> >>>     Signed-off-by: Felipe Balbi <balbi@ti.com>
> >>>
> >>>diff --git a/drivers/usb/gadget/epautoconf.c b/drivers/usb/gadget/epautoconf.c
> >>>index 978435a51038..ad45070cd76f 100644
> >>>--- a/drivers/usb/gadget/epautoconf.c
> >>>+++ b/drivers/usb/gadget/epautoconf.c
> >>>@@ -126,7 +126,6 @@ found_ep:
> >>>  	ep->address = desc->bEndpointAddress;
> >>>  	ep->desc = NULL;
> >>>  	ep->comp_desc = NULL;
> >>>-	ep->claimed = true;
> >>
> >>Removing this line causes autoconfig can return the same endpoint many
> >>times. This probably causes problems with g_zero.
> >>
> >>I will try to fix it ASAP.
> >
> >I was considering the same thing, but the lifetime of ->claimed doesn't
> >look correct to me either way. Note that once the flag is enabled, it
> >won't get disabled by most gadget drivers.
> 
> And it should not be. This flag is indicator, that endpoint is used by some
> function. It should be set once by usb_ep_autoconfig() and cleared by
> usb_ep_autoconfig_reset().

have you considered switching interfaces and/or alternate settings ?

> I wonder what is reason of this enable/disable regression. Maybe the problem
> is that we don't set ep->driver_data to NULL in usb_ep_autoconfig_reset()
> (so far it was done). Does this problem occur while gadget is binded to UDC
> for the first time, or at any next time? Unfortunately at this moment I
> don't have access to my hardware, so it will take a moment before I will
> setup some testing environment.

yeah, that's okay. We've got time.

-- 
balbi
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Re: [PATCH v5 01/46] usb: gadget: encapsulate endpoint claiming mechanism

[John Youn]

On 8/20/2015 10:45 AM, Felipe Balbi wrote:
> Hi,
> 
> On Thu, Aug 20, 2015 at 07:16:48PM +0200, Robert Baldyga wrote:
>> On 08/20/2015 06:48 PM, Felipe Balbi wrote:
>>> On Thu, Aug 20, 2015 at 06:28:14PM +0200, Robert Baldyga wrote:
>>>> Hi Felipe,
>>>>
>>>> On 08/20/2015 05:35 PM, Felipe Balbi wrote:
>>>> [...]
>>>>> just letting you know that this regresses all gadget drivers making them
>>>>> try to disable previously disabled endpoints and enable previously
>>>>> enabled endpoints.
>>>>>
>>>>> I have a possible fix (see below) but then it shows a problem on the
>>>>> host side when using with g_zero (see further below):
>>>>>
>>>>> commit 3b8932100aacb6cfbffe288ca93025d8b8430c00
>>>>> Author: Felipe Balbi <balbi@ti.com>
>>>>> Date:   Wed Aug 19 18:05:27 2015 -0500
>>>>>
>>>>>     usb: gadget: fix ep->claimed lifetime
>>>>>
>>>>>     In order to fix a regression introduced by commit
>>>>>     cc476b42a39d ("usb: gadget: encapsulate endpoint
>>>>>     claiming mechanism") we have to introduce a simple
>>>>>     helper to check if a particular is enabled or not.
>>>>>
>>>>>     After that, we need to move ep->claimed lifetime to
>>>>>     usb_ep_enable() and usb_ep_disable() since those
>>>>>     are the only functions which actually enable and
>>>>>     disable endpoints.
>>>>>
>>>>>     A follow-up patch will come to drop all driver_data
>>>>>     checks from function drivers, since those are, now,
>>>>>     pointless.
>>>>>
>>>>>     Fixes: cc476b42a39d ("usb: gadget: encapsulate endpoint
>>>>>     	claiming mechanism")
>>>>>     Cc: Robert Baldyga <r.baldyga@samsung.com>
>>>>>     Signed-off-by: Felipe Balbi <balbi@ti.com>
>>>>>
>>>>> diff --git a/drivers/usb/gadget/epautoconf.c b/drivers/usb/gadget/epautoconf.c
>>>>> index 978435a51038..ad45070cd76f 100644
>>>>> --- a/drivers/usb/gadget/epautoconf.c
>>>>> +++ b/drivers/usb/gadget/epautoconf.c
>>>>> @@ -126,7 +126,6 @@ found_ep:
>>>>>  	ep->address = desc->bEndpointAddress;
>>>>>  	ep->desc = NULL;
>>>>>  	ep->comp_desc = NULL;
>>>>> -	ep->claimed = true;
>>>>
>>>> Removing this line causes autoconfig can return the same endpoint many
>>>> times. This probably causes problems with g_zero.
>>>>
>>>> I will try to fix it ASAP.
>>>
>>> I was considering the same thing, but the lifetime of ->claimed doesn't
>>> look correct to me either way. Note that once the flag is enabled, it
>>> won't get disabled by most gadget drivers.
>>
>> And it should not be. This flag is indicator, that endpoint is used by some
>> function. It should be set once by usb_ep_autoconfig() and cleared by
>> usb_ep_autoconfig_reset().

And the 'claimed' flag should be used for the ep autoconfig
mechanism alone. We may want to reset it during the autoconfig
phase for multiple configs and alt-interfaces. So there should be
separate 'claimed' and 'enabled' flags.


> 
> have you considered switching interfaces and/or alternate settings ?

We ran into similar issues before with this very scenario. Handling
of set_config(0 or N), in both addressed and configured states, and
set_interface requests.


John

Re: [PATCH v5 01/46] usb: gadget: encapsulate endpoint claiming mechanism

[John Youn]

On 8/20/2015 10:45 AM, Felipe Balbi wrote:
> Hi,
> 
> On Thu, Aug 20, 2015 at 07:16:48PM +0200, Robert Baldyga wrote:
>> On 08/20/2015 06:48 PM, Felipe Balbi wrote:
>>> On Thu, Aug 20, 2015 at 06:28:14PM +0200, Robert Baldyga wrote:
>>>> Hi Felipe,
>>>>
>>>> On 08/20/2015 05:35 PM, Felipe Balbi wrote:
>>>> [...]
>>>>> just letting you know that this regresses all gadget drivers making them
>>>>> try to disable previously disabled endpoints and enable previously
>>>>> enabled endpoints.
>>>>>
>>>>> I have a possible fix (see below) but then it shows a problem on the
>>>>> host side when using with g_zero (see further below):
>>>>>
>>>>> commit 3b8932100aacb6cfbffe288ca93025d8b8430c00
>>>>> Author: Felipe Balbi <balbi@ti.com>
>>>>> Date:   Wed Aug 19 18:05:27 2015 -0500
>>>>>
>>>>>     usb: gadget: fix ep->claimed lifetime
>>>>>
>>>>>     In order to fix a regression introduced by commit
>>>>>     cc476b42a39d ("usb: gadget: encapsulate endpoint
>>>>>     claiming mechanism") we have to introduce a simple
>>>>>     helper to check if a particular is enabled or not.
>>>>>
>>>>>     After that, we need to move ep->claimed lifetime to
>>>>>     usb_ep_enable() and usb_ep_disable() since those
>>>>>     are the only functions which actually enable and
>>>>>     disable endpoints.
>>>>>
>>>>>     A follow-up patch will come to drop all driver_data
>>>>>     checks from function drivers, since those are, now,
>>>>>     pointless.
>>>>>
>>>>>     Fixes: cc476b42a39d ("usb: gadget: encapsulate endpoint
>>>>>     	claiming mechanism")
>>>>>     Cc: Robert Baldyga <r.baldyga@samsung.com>
>>>>>     Signed-off-by: Felipe Balbi <balbi@ti.com>
>>>>>
>>>>> diff --git a/drivers/usb/gadget/epautoconf.c b/drivers/usb/gadget/epautoconf.c
>>>>> index 978435a51038..ad45070cd76f 100644
>>>>> --- a/drivers/usb/gadget/epautoconf.c
>>>>> +++ b/drivers/usb/gadget/epautoconf.c
>>>>> @@ -126,7 +126,6 @@ found_ep:
>>>>>  	ep->address = desc->bEndpointAddress;
>>>>>  	ep->desc = NULL;
>>>>>  	ep->comp_desc = NULL;
>>>>> -	ep->claimed = true;
>>>>
>>>> Removing this line causes autoconfig can return the same endpoint many
>>>> times. This probably causes problems with g_zero.
>>>>
>>>> I will try to fix it ASAP.
>>>
>>> I was considering the same thing, but the lifetime of ->claimed doesn't
>>> look correct to me either way. Note that once the flag is enabled, it
>>> won't get disabled by most gadget drivers.
>>
>> And it should not be. This flag is indicator, that endpoint is used by some
>> function. It should be set once by usb_ep_autoconfig() and cleared by
>> usb_ep_autoconfig_reset().

And the 'claimed' flag should be used for the ep autoconfig
mechanism alone. We may want to reset it during the autoconfig
phase for multiple configs and alt-interfaces. So there should be
separate 'claimed' and 'enabled' flags.


> 
> have you considered switching interfaces and/or alternate settings ?

We ran into similar issues before with this very scenario. Handling
of set_config(0 or N), in both addressed and configured states, and
set_interface requests.


John

Re: [PATCH v5 01/46] usb: gadget: encapsulate endpoint claiming mechanism

[John Youn]

On 8/20/2015 10:45 AM, Felipe Balbi wrote:=0A=
> Hi,=0A=
> =0A=
> On Thu, Aug 20, 2015 at 07:16:48PM +0200, Robert Baldyga wrote:=0A=
>> On 08/20/2015 06:48 PM, Felipe Balbi wrote:=0A=
>>> On Thu, Aug 20, 2015 at 06:28:14PM +0200, Robert Baldyga wrote:=0A=
>>>> Hi Felipe,=0A=
>>>>=0A=
>>>> On 08/20/2015 05:35 PM, Felipe Balbi wrote:=0A=
>>>> [...]=0A=
>>>>> just letting you know that this regresses all gadget drivers making t=
hem=0A=
>>>>> try to disable previously disabled endpoints and enable previously=0A=
>>>>> enabled endpoints.=0A=
>>>>>=0A=
>>>>> I have a possible fix (see below) but then it shows a problem on the=
=0A=
>>>>> host side when using with g_zero (see further below):=0A=
>>>>>=0A=
>>>>> commit 3b8932100aacb6cfbffe288ca93025d8b8430c00=0A=
>>>>> Author: Felipe Balbi <balbi@ti.com>=0A=
>>>>> Date:   Wed Aug 19 18:05:27 2015 -0500=0A=
>>>>>=0A=
>>>>>     usb: gadget: fix ep->claimed lifetime=0A=
>>>>>=0A=
>>>>>     In order to fix a regression introduced by commit=0A=
>>>>>     cc476b42a39d ("usb: gadget: encapsulate endpoint=0A=
>>>>>     claiming mechanism") we have to introduce a simple=0A=
>>>>>     helper to check if a particular is enabled or not.=0A=
>>>>>=0A=
>>>>>     After that, we need to move ep->claimed lifetime to=0A=
>>>>>     usb_ep_enable() and usb_ep_disable() since those=0A=
>>>>>     are the only functions which actually enable and=0A=
>>>>>     disable endpoints.=0A=
>>>>>=0A=
>>>>>     A follow-up patch will come to drop all driver_data=0A=
>>>>>     checks from function drivers, since those are, now,=0A=
>>>>>     pointless.=0A=
>>>>>=0A=
>>>>>     Fixes: cc476b42a39d ("usb: gadget: encapsulate endpoint=0A=
>>>>>     	claiming mechanism")=0A=
>>>>>     Cc: Robert Baldyga <r.baldyga@samsung.com>=0A=
>>>>>     Signed-off-by: Felipe Balbi <balbi@ti.com>=0A=
>>>>>=0A=
>>>>> diff --git a/drivers/usb/gadget/epautoconf.c b/drivers/usb/gadget/epa=
utoconf.c=0A=
>>>>> index 978435a51038..ad45070cd76f 100644=0A=
>>>>> --- a/drivers/usb/gadget/epautoconf.c=0A=
>>>>> +++ b/drivers/usb/gadget/epautoconf.c=0A=
>>>>> @@ -126,7 +126,6 @@ found_ep:=0A=
>>>>>  	ep->address =3D desc->bEndpointAddress;=0A=
>>>>>  	ep->desc =3D NULL;=0A=
>>>>>  	ep->comp_desc =3D NULL;=0A=
>>>>> -	ep->claimed =3D true;=0A=
>>>>=0A=
>>>> Removing this line causes autoconfig can return the same endpoint many=
=0A=
>>>> times. This probably causes problems with g_zero.=0A=
>>>>=0A=
>>>> I will try to fix it ASAP.=0A=
>>>=0A=
>>> I was considering the same thing, but the lifetime of ->claimed doesn't=
=0A=
>>> look correct to me either way. Note that once the flag is enabled, it=
=0A=
>>> won't get disabled by most gadget drivers.=0A=
>>=0A=
>> And it should not be. This flag is indicator, that endpoint is used by s=
ome=0A=
>> function. It should be set once by usb_ep_autoconfig() and cleared by=0A=
>> usb_ep_autoconfig_reset().=0A=
=0A=
And the 'claimed' flag should be used for the ep autoconfig=0A=
mechanism alone. We may want to reset it during the autoconfig=0A=
phase for multiple configs and alt-interfaces. So there should be=0A=
separate 'claimed' and 'enabled' flags.=0A=
=0A=
=0A=
> =0A=
> have you considered switching interfaces and/or alternate settings ?=0A=
=0A=
We ran into similar issues before with this very scenario. Handling=0A=
of set_config(0 or N), in both addressed and configured states, and=0A=
set_interface requests.=0A=
=0A=
=0A=
John=0A=
=0A=

[PATCH v5 01/46] usb: gadget: encapsulate endpoint claiming mechanism

[John Youn]

On 8/20/2015 10:45 AM, Felipe Balbi wrote:
> Hi,
> 
> On Thu, Aug 20, 2015 at 07:16:48PM +0200, Robert Baldyga wrote:
>> On 08/20/2015 06:48 PM, Felipe Balbi wrote:
>>> On Thu, Aug 20, 2015 at 06:28:14PM +0200, Robert Baldyga wrote:
>>>> Hi Felipe,
>>>>
>>>> On 08/20/2015 05:35 PM, Felipe Balbi wrote:
>>>> [...]
>>>>> just letting you know that this regresses all gadget drivers making them
>>>>> try to disable previously disabled endpoints and enable previously
>>>>> enabled endpoints.
>>>>>
>>>>> I have a possible fix (see below) but then it shows a problem on the
>>>>> host side when using with g_zero (see further below):
>>>>>
>>>>> commit 3b8932100aacb6cfbffe288ca93025d8b8430c00
>>>>> Author: Felipe Balbi <balbi@ti.com>
>>>>> Date:   Wed Aug 19 18:05:27 2015 -0500
>>>>>
>>>>>     usb: gadget: fix ep->claimed lifetime
>>>>>
>>>>>     In order to fix a regression introduced by commit
>>>>>     cc476b42a39d ("usb: gadget: encapsulate endpoint
>>>>>     claiming mechanism") we have to introduce a simple
>>>>>     helper to check if a particular is enabled or not.
>>>>>
>>>>>     After that, we need to move ep->claimed lifetime to
>>>>>     usb_ep_enable() and usb_ep_disable() since those
>>>>>     are the only functions which actually enable and
>>>>>     disable endpoints.
>>>>>
>>>>>     A follow-up patch will come to drop all driver_data
>>>>>     checks from function drivers, since those are, now,
>>>>>     pointless.
>>>>>
>>>>>     Fixes: cc476b42a39d ("usb: gadget: encapsulate endpoint
>>>>>     	claiming mechanism")
>>>>>     Cc: Robert Baldyga <r.baldyga@samsung.com>
>>>>>     Signed-off-by: Felipe Balbi <balbi@ti.com>
>>>>>
>>>>> diff --git a/drivers/usb/gadget/epautoconf.c b/drivers/usb/gadget/epautoconf.c
>>>>> index 978435a51038..ad45070cd76f 100644
>>>>> --- a/drivers/usb/gadget/epautoconf.c
>>>>> +++ b/drivers/usb/gadget/epautoconf.c
>>>>> @@ -126,7 +126,6 @@ found_ep:
>>>>>  	ep->address = desc->bEndpointAddress;
>>>>>  	ep->desc = NULL;
>>>>>  	ep->comp_desc = NULL;
>>>>> -	ep->claimed = true;
>>>>
>>>> Removing this line causes autoconfig can return the same endpoint many
>>>> times. This probably causes problems with g_zero.
>>>>
>>>> I will try to fix it ASAP.
>>>
>>> I was considering the same thing, but the lifetime of ->claimed doesn't
>>> look correct to me either way. Note that once the flag is enabled, it
>>> won't get disabled by most gadget drivers.
>>
>> And it should not be. This flag is indicator, that endpoint is used by some
>> function. It should be set once by usb_ep_autoconfig() and cleared by
>> usb_ep_autoconfig_reset().

And the 'claimed' flag should be used for the ep autoconfig
mechanism alone. We may want to reset it during the autoconfig
phase for multiple configs and alt-interfaces. So there should be
separate 'claimed' and 'enabled' flags.


> 
> have you considered switching interfaces and/or alternate settings ?

We ran into similar issues before with this very scenario. Handling
of set_config(0 or N), in both addressed and configured states, and
set_interface requests.


John