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* [PATCH] HID: Recognize sensors with application collections too.
@ 2022-12-17  7:26 Aditya Garg
  2023-01-10  8:55 ` [PATCH RESEND] " Aditya Garg
  0 siblings, 1 reply; 8+ messages in thread
From: Aditya Garg @ 2022-12-17  7:26 UTC (permalink / raw)
  To: Jiri Kosina, jkosina, benjamin.tissoires, jic23,
	srinivas.pandruvada, linux-input, linux-kernel, linux-iio
  Cc: Orlando Chamberlain

From: Ronald Tschalär <ronald@innovation.ch>

According to HUTRR39 logical sensor devices may be nested inside
physical collections or may be specified in multiple top-level
application collections (see page 59, strategies 1 and 2). However,
the current code was only recognizing those with physical collections.

This issue turned up in recent MacBook Pro's which define the ALS in
a top-level application collection.

Signed-off-by: Ronald Tschalär <ronald@innovation.ch>
Signed-off-by: Aditya Garg <gargaditya08@live.com>
---
 drivers/hid/hid-core.c       | 3 ++-
 drivers/hid/hid-sensor-hub.c | 6 ++++--
 2 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index b7f5566e338d..8fcd663b10e2 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -804,7 +804,8 @@ static void hid_scan_collection(struct hid_parser *parser, unsigned type)
 	int i;
 
 	if (((parser->global.usage_page << 16) == HID_UP_SENSOR) &&
-	    type == HID_COLLECTION_PHYSICAL)
+	    (type == HID_COLLECTION_PHYSICAL ||
+	     type == HID_COLLECTION_APPLICATION))
 		hid->group = HID_GROUP_SENSOR_HUB;
 
 	if (hid->vendor == USB_VENDOR_ID_MICROSOFT &&
diff --git a/drivers/hid/hid-sensor-hub.c b/drivers/hid/hid-sensor-hub.c
index 6abd3e2a9094..d03dc4ca095f 100644
--- a/drivers/hid/hid-sensor-hub.c
+++ b/drivers/hid/hid-sensor-hub.c
@@ -397,7 +397,8 @@ int sensor_hub_input_get_attribute_info(struct hid_sensor_hub_device *hsdev,
 		for (i = 0; i < report->maxfield; ++i) {
 			field = report->field[i];
 			if (field->maxusage) {
-				if (field->physical == usage_id &&
+				if ((field->physical == usage_id ||
+				     field->application == usage_id) &&
 					(field->logical == attr_usage_id ||
 					field->usage[0].hid ==
 							attr_usage_id) &&
@@ -506,7 +507,8 @@ static int sensor_hub_raw_event(struct hid_device *hdev,
 					collection->usage);
 
 		callback = sensor_hub_get_callback(hdev,
-				report->field[i]->physical,
+				report->field[i]->physical ?:
+					report->field[i]->application,
 				report->field[i]->usage[0].collection_index,
 				&hsdev, &priv);
 		if (!callback) {
-- 
2.38.1


^ permalink raw reply related	[flat|nested] 8+ messages in thread

* [PATCH RESEND] HID: Recognize sensors with application collections too.
  2022-12-17  7:26 [PATCH] HID: Recognize sensors with application collections too Aditya Garg
@ 2023-01-10  8:55 ` Aditya Garg
  2023-01-10  8:57   ` [PATCH v2] " Aditya Garg
  0 siblings, 1 reply; 8+ messages in thread
From: Aditya Garg @ 2023-01-10  8:55 UTC (permalink / raw)
  To: Jiri Kosina, jkosina, benjamin.tissoires, jic23,
	srinivas.pandruvada, linux-input, LKML, linux-iio
  Cc: orlandoch.dev, ronald

From: Ronald Tschalär <ronald@innovation.ch>

According to HUTRR39 logical sensor devices may be nested inside
physical collections or may be specified in multiple top-level
application collections (see page 59, strategies 1 and 2). However,
the current code was only recognizing those with physical collections.

This issue turned up in the T2 MacBook Pro's which define the ALS in
a top-level application collection.

Signed-off-by: Ronald Tschalär <ronald@innovation.ch>
---
 drivers/hid/hid-core.c       | 3 ++-
 drivers/hid/hid-sensor-hub.c | 6 ++++--
 2 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index b7f5566e338d..8fcd663b10e2 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -804,7 +804,8 @@ static void hid_scan_collection(struct hid_parser *parser, unsigned type)
 	int i;
 
 	if (((parser->global.usage_page << 16) == HID_UP_SENSOR) &&
-	    type == HID_COLLECTION_PHYSICAL)
+	    (type == HID_COLLECTION_PHYSICAL ||
+	     type == HID_COLLECTION_APPLICATION))
 		hid->group = HID_GROUP_SENSOR_HUB;
 
 	if (hid->vendor == USB_VENDOR_ID_MICROSOFT &&
diff --git a/drivers/hid/hid-sensor-hub.c b/drivers/hid/hid-sensor-hub.c
index 6abd3e2a9094..d03dc4ca095f 100644
--- a/drivers/hid/hid-sensor-hub.c
+++ b/drivers/hid/hid-sensor-hub.c
@@ -397,7 +397,8 @@ int sensor_hub_input_get_attribute_info(struct hid_sensor_hub_device *hsdev,
 		for (i = 0; i < report->maxfield; ++i) {
 			field = report->field[i];
 			if (field->maxusage) {
-				if (field->physical == usage_id &&
+				if ((field->physical == usage_id ||
+				     field->application == usage_id) &&
 					(field->logical == attr_usage_id ||
 					field->usage[0].hid ==
 							attr_usage_id) &&
@@ -506,7 +507,8 @@ static int sensor_hub_raw_event(struct hid_device *hdev,
 					collection->usage);
 
 		callback = sensor_hub_get_callback(hdev,
-				report->field[i]->physical,
+				report->field[i]->physical ?:
+					report->field[i]->application,
 				report->field[i]->usage[0].collection_index,
 				&hsdev, &priv);
 		if (!callback) {
-- 
2.38.1


^ permalink raw reply related	[flat|nested] 8+ messages in thread

* [PATCH v2] HID: Recognize sensors with application collections too.
  2023-01-10  8:55 ` [PATCH RESEND] " Aditya Garg
@ 2023-01-10  8:57   ` Aditya Garg
  2023-01-10 22:16     ` srinivas pandruvada
  2023-01-11 10:07     ` [PATCH v3] HID: Recognize sensors with application collections Aditya Garg
  0 siblings, 2 replies; 8+ messages in thread
From: Aditya Garg @ 2023-01-10  8:57 UTC (permalink / raw)
  To: Jiri Kosina, jkosina, benjamin.tissoires, jic23,
	srinivas.pandruvada, linux-input, LKML, linux-iio
  Cc: orlandoch.dev, ronald

From: Ronald Tschalär <ronald@innovation.ch>

According to HUTRR39 logical sensor devices may be nested inside
physical collections or may be specified in multiple top-level
application collections (see page 59, strategies 1 and 2). However,
the current code was only recognizing those with physical collections.

This issue turned up in the T2 MacBook Pro's which define the ALS in
a top-level application collection.

Signed-off-by: Ronald Tschalär <ronald@innovation.ch>
Signed-off-by: Aditya Garg <gargaditya08@live.com>
—
V2 :- Add missing signed-off-by
 drivers/hid/hid-core.c       | 3 ++-
 drivers/hid/hid-sensor-hub.c | 6 ++++--
 2 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index b7f5566e338d..8fcd663b10e2 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -804,7 +804,8 @@ static void hid_scan_collection(struct hid_parser *parser, unsigned type)
 	int i;
 
 	if (((parser->global.usage_page << 16) == HID_UP_SENSOR) &&
-	    type == HID_COLLECTION_PHYSICAL)
+	    (type == HID_COLLECTION_PHYSICAL ||
+	     type == HID_COLLECTION_APPLICATION))
 		hid->group = HID_GROUP_SENSOR_HUB;
 
 	if (hid->vendor == USB_VENDOR_ID_MICROSOFT &&
diff --git a/drivers/hid/hid-sensor-hub.c b/drivers/hid/hid-sensor-hub.c
index 6abd3e2a9094..d03dc4ca095f 100644
--- a/drivers/hid/hid-sensor-hub.c
+++ b/drivers/hid/hid-sensor-hub.c
@@ -397,7 +397,8 @@ int sensor_hub_input_get_attribute_info(struct hid_sensor_hub_device *hsdev,
 		for (i = 0; i < report->maxfield; ++i) {
 			field = report->field[i];
 			if (field->maxusage) {
-				if (field->physical == usage_id &&
+				if ((field->physical == usage_id ||
+				     field->application == usage_id) &&
 					(field->logical == attr_usage_id ||
 					field->usage[0].hid ==
 							attr_usage_id) &&
@@ -506,7 +507,8 @@ static int sensor_hub_raw_event(struct hid_device *hdev,
 					collection->usage);
 
 		callback = sensor_hub_get_callback(hdev,
-				report->field[i]->physical,
+				report->field[i]->physical ?:
+					report->field[i]->application,
 				report->field[i]->usage[0].collection_index,
 				&hsdev, &priv);
 		if (!callback) {
-- 
2.38.1


^ permalink raw reply related	[flat|nested] 8+ messages in thread

* Re: [PATCH v2] HID: Recognize sensors with application collections too.
  2023-01-10  8:57   ` [PATCH v2] " Aditya Garg
@ 2023-01-10 22:16     ` srinivas pandruvada
  2023-01-11 10:06       ` Aditya Garg
  2023-01-11 10:07     ` [PATCH v3] HID: Recognize sensors with application collections Aditya Garg
  1 sibling, 1 reply; 8+ messages in thread
From: srinivas pandruvada @ 2023-01-10 22:16 UTC (permalink / raw)
  To: Aditya Garg, Jiri Kosina, jkosina, benjamin.tissoires, jic23,
	linux-input, LKML, linux-iio
  Cc: orlandoch.dev, ronald


Don't add full stop at the end.

HID: Recognize sensors with application collection

On Tue, 2023-01-10 at 08:57 +0000, Aditya Garg wrote:
> From: Ronald Tschalär <ronald@innovation.ch>
> 
> According to HUTRR39 logical sensor devices may be nested inside
> physical collections or may be specified in multiple top-level
> application collections (see page 59, strategies 1 and 2). However,
> the current code was only recognizing those with physical
> collections.
> 
> This issue turned up in the T2 MacBook Pro's which define the ALS in
> a top-level application collection.
> 
> Signed-off-by: Ronald Tschalär <ronald@innovation.ch>
> Signed-off-by: Aditya Garg <gargaditya08@live.com>
> —
> V2 :- Add missing signed-off-by
>  drivers/hid/hid-core.c       | 3 ++-
>  drivers/hid/hid-sensor-hub.c | 6 ++++--
>  2 files changed, 6 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
> index b7f5566e338d..8fcd663b10e2 100644
> --- a/drivers/hid/hid-core.c
> +++ b/drivers/hid/hid-core.c
> @@ -804,7 +804,8 @@ static void hid_scan_collection(struct hid_parser
> *parser, unsigned type)
>         int i;
>  
>         if (((parser->global.usage_page << 16) == HID_UP_SENSOR) &&
> -           type == HID_COLLECTION_PHYSICAL)
> +           (type == HID_COLLECTION_PHYSICAL ||
> +            type == HID_COLLECTION_APPLICATION))
>                 hid->group = HID_GROUP_SENSOR_HUB;
>  
>         if (hid->vendor == USB_VENDOR_ID_MICROSOFT &&
> diff --git a/drivers/hid/hid-sensor-hub.c b/drivers/hid/hid-sensor-
> hub.c
> index 6abd3e2a9094..d03dc4ca095f 100644
> --- a/drivers/hid/hid-sensor-hub.c
> +++ b/drivers/hid/hid-sensor-hub.c
> @@ -397,7 +397,8 @@ int sensor_hub_input_get_attribute_info(struct
> hid_sensor_hub_device *hsdev,
>                 for (i = 0; i < report->maxfield; ++i) {
>                         field = report->field[i];
>                         if (field->maxusage) {
> -                               if (field->physical == usage_id &&
> +                               if ((field->physical == usage_id ||
> +                                    field->application == usage_id)
> &&
>                                         (field->logical ==
> attr_usage_id ||
>                                         field->usage[0].hid ==
>                                                         attr_usage_id
> ) &&
> @@ -506,7 +507,8 @@ static int sensor_hub_raw_event(struct hid_device
> *hdev,
>                                         collection->usage);
>  
>                 callback = sensor_hub_get_callback(hdev,
> -                               report->field[i]->physical,
> +                               report->field[i]->physical ?:
> +                                       report->field[i]->application
Better not use language extensions. Simple to use

 report->field[i]->physical ?  report->field[i]->physical : report-
>field[i]->application

Otherwise patch is fine.

Thanks,
Srinivas

> ,
>                                 report->field[i]-
> >usage[0].collection_index,
>                                 &hsdev, &priv);
>                 if (!callback) {
> -- 
> 2.38.1
> 


^ permalink raw reply	[flat|nested] 8+ messages in thread

* Re: [PATCH v2] HID: Recognize sensors with application collections too.
  2023-01-10 22:16     ` srinivas pandruvada
@ 2023-01-11 10:06       ` Aditya Garg
  0 siblings, 0 replies; 8+ messages in thread
From: Aditya Garg @ 2023-01-11 10:06 UTC (permalink / raw)
  To: srinivas pandruvada
  Cc: Jiri Kosina, jkosina, benjamin.tissoires, jic23, linux-input,
	LKML, linux-iio, orlandoch.dev, ronald



> On 11-Jan-2023, at 3:46 AM, srinivas pandruvada <srinivas.pandruvada@linux.intel.com> wrote:
> 
> 
> Don't add full stop at the end.
> 
> HID: Recognize sensors with application collection
> 
> Better not use language extensions. Simple to use
> 
> report->field[i]->physical ?  report->field[i]->physical : report-
>> field[i]->application
> 
> 

Sending a v3 with the changes.



^ permalink raw reply	[flat|nested] 8+ messages in thread

* [PATCH v3] HID: Recognize sensors with application collections
  2023-01-10  8:57   ` [PATCH v2] " Aditya Garg
  2023-01-10 22:16     ` srinivas pandruvada
@ 2023-01-11 10:07     ` Aditya Garg
  2023-01-11 16:59       ` srinivas pandruvada
  2023-01-18  8:54       ` Jiri Kosina
  1 sibling, 2 replies; 8+ messages in thread
From: Aditya Garg @ 2023-01-11 10:07 UTC (permalink / raw)
  To: Jiri Kosina, jkosina, benjamin.tissoires, jic23,
	srinivas.pandruvada, linux-input, LKML, linux-iio
  Cc: orlandoch.dev, ronald

From: Ronald Tschalär <ronald@innovation.ch>

According to HUTRR39 logical sensor devices may be nested inside
physical collections or may be specified in multiple top-level
application collections (see page 59, strategies 1 and 2). However,
the current code was only recognizing those with physical collections.

This issue turned up in the T2 MacBook Pros which define the ALS in
a top-level application collection.

Signed-off-by: Ronald Tschalär <ronald@innovation.ch>
Signed-off-by: Aditya Garg <gargaditya08@live.com>
---
V2 :- Add missing signed-off-by
V3 :- Avoid using language extensions
 drivers/hid/hid-core.c       | 3 ++-
 drivers/hid/hid-sensor-hub.c | 6 ++++--
 2 files changed, 6 insertions(+), 3 deletions(-)

diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
index bd47628da..8ff08e6c2 100644
--- a/drivers/hid/hid-core.c
+++ b/drivers/hid/hid-core.c
@@ -804,7 +804,8 @@ static void hid_scan_collection(struct hid_parser *parser, unsigned type)
 	int i;
 
 	if (((parser->global.usage_page << 16) == HID_UP_SENSOR) &&
-	    type == HID_COLLECTION_PHYSICAL)
+	    (type == HID_COLLECTION_PHYSICAL ||
+	     type == HID_COLLECTION_APPLICATION))
 		hid->group = HID_GROUP_SENSOR_HUB;
 
 	if (hid->vendor == USB_VENDOR_ID_MICROSOFT &&
diff --git a/drivers/hid/hid-sensor-hub.c b/drivers/hid/hid-sensor-hub.c
index 6abd3e2a9..83237b86c 100644
--- a/drivers/hid/hid-sensor-hub.c
+++ b/drivers/hid/hid-sensor-hub.c
@@ -397,7 +397,8 @@ int sensor_hub_input_get_attribute_info(struct hid_sensor_hub_device *hsdev,
 		for (i = 0; i < report->maxfield; ++i) {
 			field = report->field[i];
 			if (field->maxusage) {
-				if (field->physical == usage_id &&
+				if ((field->physical == usage_id ||
+				     field->application == usage_id) &&
 					(field->logical == attr_usage_id ||
 					field->usage[0].hid ==
 							attr_usage_id) &&
@@ -506,7 +507,8 @@ static int sensor_hub_raw_event(struct hid_device *hdev,
 					collection->usage);
 
 		callback = sensor_hub_get_callback(hdev,
-				report->field[i]->physical,
+				report->field[i]->physical ? report->field[i]->physical :
+							     report->field[i]->application,
 				report->field[i]->usage[0].collection_index,
 				&hsdev, &priv);
 		if (!callback) {
-- 
2.34.1


^ permalink raw reply related	[flat|nested] 8+ messages in thread

* Re: [PATCH v3] HID: Recognize sensors with application collections
  2023-01-11 10:07     ` [PATCH v3] HID: Recognize sensors with application collections Aditya Garg
@ 2023-01-11 16:59       ` srinivas pandruvada
  2023-01-18  8:54       ` Jiri Kosina
  1 sibling, 0 replies; 8+ messages in thread
From: srinivas pandruvada @ 2023-01-11 16:59 UTC (permalink / raw)
  To: Aditya Garg, Jiri Kosina, jkosina, benjamin.tissoires, jic23,
	linux-input, LKML, linux-iio
  Cc: orlandoch.dev, ronald

On Wed, 2023-01-11 at 10:07 +0000, Aditya Garg wrote:
> From: Ronald Tschalär <ronald@innovation.ch>
> 
> According to HUTRR39 logical sensor devices may be nested inside
> physical collections or may be specified in multiple top-level
> application collections (see page 59, strategies 1 and 2). However,
> the current code was only recognizing those with physical
> collections.
> 
> This issue turned up in the T2 MacBook Pros which define the ALS in
> a top-level application collection.
> 
> Signed-off-by: Ronald Tschalär <ronald@innovation.ch>
> Signed-off-by: Aditya Garg <gargaditya08@live.com>

Since there are some hid core change, Jiri needs to check. If Jiri is
fine with hid core changes:
Acked-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>



> ---
> V2 :- Add missing signed-off-by
> V3 :- Avoid using language extensions
>  drivers/hid/hid-core.c       | 3 ++-
>  drivers/hid/hid-sensor-hub.c | 6 ++++--
>  2 files changed, 6 insertions(+), 3 deletions(-)
> 
> diff --git a/drivers/hid/hid-core.c b/drivers/hid/hid-core.c
> index bd47628da..8ff08e6c2 100644
> --- a/drivers/hid/hid-core.c
> +++ b/drivers/hid/hid-core.c
> @@ -804,7 +804,8 @@ static void hid_scan_collection(struct hid_parser
> *parser, unsigned type)
>         int i;
>  
>         if (((parser->global.usage_page << 16) == HID_UP_SENSOR) &&
> -           type == HID_COLLECTION_PHYSICAL)
> +           (type == HID_COLLECTION_PHYSICAL ||
> +            type == HID_COLLECTION_APPLICATION))
>                 hid->group = HID_GROUP_SENSOR_HUB;
>  
>         if (hid->vendor == USB_VENDOR_ID_MICROSOFT &&
> diff --git a/drivers/hid/hid-sensor-hub.c b/drivers/hid/hid-sensor-
> hub.c
> index 6abd3e2a9..83237b86c 100644
> --- a/drivers/hid/hid-sensor-hub.c
> +++ b/drivers/hid/hid-sensor-hub.c
> @@ -397,7 +397,8 @@ int sensor_hub_input_get_attribute_info(struct
> hid_sensor_hub_device *hsdev,
>                 for (i = 0; i < report->maxfield; ++i) {
>                         field = report->field[i];
>                         if (field->maxusage) {
> -                               if (field->physical == usage_id &&
> +                               if ((field->physical == usage_id ||
> +                                    field->application == usage_id) &&
>                                         (field->logical ==
> attr_usage_id ||
>                                         field->usage[0].hid ==
>                                                         attr_usage_id)
> &&
> @@ -506,7 +507,8 @@ static int sensor_hub_raw_event(struct hid_device
> *hdev,
>                                         collection->usage);
>  
>                 callback = sensor_hub_get_callback(hdev,
> -                               report->field[i]->physical,
> +                               report->field[i]->physical ? report-
> >field[i]->physical :
> +                                                            report-
> >field[i]->application,
>                                 report->field[i]-
> >usage[0].collection_index,
>                                 &hsdev, &priv);
>                 if (!callback) {
> -- 
> 2.34.1
> 



^ permalink raw reply	[flat|nested] 8+ messages in thread

* Re: [PATCH v3] HID: Recognize sensors with application collections
  2023-01-11 10:07     ` [PATCH v3] HID: Recognize sensors with application collections Aditya Garg
  2023-01-11 16:59       ` srinivas pandruvada
@ 2023-01-18  8:54       ` Jiri Kosina
  1 sibling, 0 replies; 8+ messages in thread
From: Jiri Kosina @ 2023-01-18  8:54 UTC (permalink / raw)
  To: Aditya Garg
  Cc: benjamin.tissoires, jic23, srinivas.pandruvada, linux-input,
	LKML, linux-iio, orlandoch.dev, ronald

On Wed, 11 Jan 2023, Aditya Garg wrote:

> From: Ronald Tschalär <ronald@innovation.ch>
> 
> According to HUTRR39 logical sensor devices may be nested inside
> physical collections or may be specified in multiple top-level
> application collections (see page 59, strategies 1 and 2). However,
> the current code was only recognizing those with physical collections.
> 
> This issue turned up in the T2 MacBook Pros which define the ALS in
> a top-level application collection.
> 
> Signed-off-by: Ronald Tschalär <ronald@innovation.ch>
> Signed-off-by: Aditya Garg <gargaditya08@live.com>

Makes sense. Queued in for-6.3/hid-core. Thanks,

-- 
Jiri Kosina
SUSE Labs


^ permalink raw reply	[flat|nested] 8+ messages in thread

end of thread, other threads:[~2023-01-18  9:37 UTC | newest]

Thread overview: 8+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2022-12-17  7:26 [PATCH] HID: Recognize sensors with application collections too Aditya Garg
2023-01-10  8:55 ` [PATCH RESEND] " Aditya Garg
2023-01-10  8:57   ` [PATCH v2] " Aditya Garg
2023-01-10 22:16     ` srinivas pandruvada
2023-01-11 10:06       ` Aditya Garg
2023-01-11 10:07     ` [PATCH v3] HID: Recognize sensors with application collections Aditya Garg
2023-01-11 16:59       ` srinivas pandruvada
2023-01-18  8:54       ` Jiri Kosina

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