* [PATCH v3 0/7] typec: tcpm: Add sink side support for PPS
@ 2017-12-18 12:41 ` Adam Thomson
0 siblings, 0 replies; 31+ messages in thread
From: Adam Thomson @ 2017-12-18 12:41 UTC (permalink / raw)
To: Heikki Krogerus, Guenter Roeck, Greg Kroah-Hartman,
Sebastian Reichel, Hans de Goede, Yueyao Zhu, Rui Miguel Silva
Cc: linux-usb, linux-pm, linux-kernel, support.opensource
This patch set adds sink side support for the PPS feature introduced in the
USB PD 3.0 specification.
The source PPS supply is represented using the Power Supply framework to provide
access and control APIs for dealing with it's operating voltage and current,
and switching between a standard PDO and PPS APDO operation. During standard PDO
operation the voltage and current is read-only, but for APDO PPS these are
writable as well to allow for control.
It should be noted that the keepalive for PPS is not handled within TCPM. The
expectation is that the external user will be required to ensure re-requests
occur regularly to ensure PPS remains and the source does not hard reset.
Changes in v3:
- Drop 'RFC' from patch series titles
- Rename PPS related defines to be PPS specific rather than generic APDO titles
- Update source caps logging to only print PPS APDOs, and for others report as
undefined.
- Add ABI documentation for tcpm-source-psy sysfs properties
- Rebase PDO selection on top of 'typec: tcpm: Only request matching pdos'
patch.
- Update capabilities validation introduced in
'typec: tcpm: Validate source and sink caps' to support PPS APDOs.
- Dropped power_supply 'type' property update for PPS addition
- Added 'connected_type' property to power_supply framework, to support
supplies which can report multiple connected types (e.g. USB), as discussed
with Heikki.
Changes in v2:
- Use USB_PD and usb_pd prefixes for macros and inline functions in headers.
- Negotiate spec revision of PD headers during initial contract agreement.
- New headers now use SPDX tags for referencing correct license.
NOTE: Code changes are based on linux-next tag 'next-20171212' to pick up
capabilities validation and selection updates.
Adam Thomson (7):
typec: tcpm: Add PD Rev 3.0 definitions to PD header
typec: tcpm: Add ADO header for Alert message handling
typec: tcpm: Add SDB header for Status message handling
typec: tcpm: Add core support for sink side PPS
power: supply: Add 'connected_type' property and supporting code
typec: tcpm: Represent source supply through power_supply class
typec: tcpm: Add support for sink PPS related messages
.../ABI/testing/sysfs-class-power-tcpm-source-psy | 92 +++
drivers/power/supply/power_supply_sysfs.c | 50 ++
drivers/usb/typec/Kconfig | 1 +
drivers/usb/typec/fusb302/Kconfig | 2 +-
drivers/usb/typec/fusb302/fusb302.c | 63 +-
drivers/usb/typec/tcpm.c | 918 ++++++++++++++++++++-
include/linux/power_supply.h | 15 +
include/linux/usb/pd.h | 187 ++++-
include/linux/usb/pd_ado.h | 42 +
include/linux/usb/pd_ext_sdb.h | 31 +
include/linux/usb/tcpm.h | 2 +-
11 files changed, 1308 insertions(+), 95 deletions(-)
create mode 100644 Documentation/ABI/testing/sysfs-class-power-tcpm-source-psy
create mode 100644 include/linux/usb/pd_ado.h
create mode 100644 include/linux/usb/pd_ext_sdb.h
--
1.9.1
^ permalink raw reply [flat|nested] 31+ messages in thread
* [PATCH v3 0/7] typec: tcpm: Add sink side support for PPS
@ 2017-12-18 12:41 ` Adam Thomson
0 siblings, 0 replies; 31+ messages in thread
From: Adam Thomson @ 2017-12-18 12:41 UTC (permalink / raw)
To: Heikki Krogerus, Guenter Roeck, Greg Kroah-Hartman,
Sebastian Reichel, Hans de Goede, Yueyao Zhu, Rui Miguel Silva
Cc: linux-usb, linux-pm, linux-kernel, support.opensource
This patch set adds sink side support for the PPS feature introduced in the
USB PD 3.0 specification.
The source PPS supply is represented using the Power Supply framework to provide
access and control APIs for dealing with it's operating voltage and current,
and switching between a standard PDO and PPS APDO operation. During standard PDO
operation the voltage and current is read-only, but for APDO PPS these are
writable as well to allow for control.
It should be noted that the keepalive for PPS is not handled within TCPM. The
expectation is that the external user will be required to ensure re-requests
occur regularly to ensure PPS remains and the source does not hard reset.
Changes in v3:
- Drop 'RFC' from patch series titles
- Rename PPS related defines to be PPS specific rather than generic APDO titles
- Update source caps logging to only print PPS APDOs, and for others report as
undefined.
- Add ABI documentation for tcpm-source-psy sysfs properties
- Rebase PDO selection on top of 'typec: tcpm: Only request matching pdos'
patch.
- Update capabilities validation introduced in
'typec: tcpm: Validate source and sink caps' to support PPS APDOs.
- Dropped power_supply 'type' property update for PPS addition
- Added 'connected_type' property to power_supply framework, to support
supplies which can report multiple connected types (e.g. USB), as discussed
with Heikki.
Changes in v2:
- Use USB_PD and usb_pd prefixes for macros and inline functions in headers.
- Negotiate spec revision of PD headers during initial contract agreement.
- New headers now use SPDX tags for referencing correct license.
NOTE: Code changes are based on linux-next tag 'next-20171212' to pick up
capabilities validation and selection updates.
Adam Thomson (7):
typec: tcpm: Add PD Rev 3.0 definitions to PD header
typec: tcpm: Add ADO header for Alert message handling
typec: tcpm: Add SDB header for Status message handling
typec: tcpm: Add core support for sink side PPS
power: supply: Add 'connected_type' property and supporting code
typec: tcpm: Represent source supply through power_supply class
typec: tcpm: Add support for sink PPS related messages
.../ABI/testing/sysfs-class-power-tcpm-source-psy | 92 +++
drivers/power/supply/power_supply_sysfs.c | 50 ++
drivers/usb/typec/Kconfig | 1 +
drivers/usb/typec/fusb302/Kconfig | 2 +-
drivers/usb/typec/fusb302/fusb302.c | 63 +-
drivers/usb/typec/tcpm.c | 918 ++++++++++++++++++++-
include/linux/power_supply.h | 15 +
include/linux/usb/pd.h | 187 ++++-
include/linux/usb/pd_ado.h | 42 +
include/linux/usb/pd_ext_sdb.h | 31 +
include/linux/usb/tcpm.h | 2 +-
11 files changed, 1308 insertions(+), 95 deletions(-)
create mode 100644 Documentation/ABI/testing/sysfs-class-power-tcpm-source-psy
create mode 100644 include/linux/usb/pd_ado.h
create mode 100644 include/linux/usb/pd_ext_sdb.h
--
1.9.1
^ permalink raw reply [flat|nested] 31+ messages in thread
* [PATCH v3 1/7] typec: tcpm: Add PD Rev 3.0 definitions to PD header
@ 2017-12-18 12:41 ` Opensource [Adam Thomson]
0 siblings, 0 replies; 31+ messages in thread
From: Adam Thomson @ 2017-12-18 12:41 UTC (permalink / raw)
To: Heikki Krogerus, Guenter Roeck, Greg Kroah-Hartman,
Sebastian Reichel, Hans de Goede, Yueyao Zhu, Rui Miguel Silva
Cc: linux-usb, linux-pm, linux-kernel, support.opensource
This commit adds definitions for PD Rev 3.0 messages, including
APDO PPS and extended message support for TCPM.
Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
---
include/linux/usb/pd.h | 187 +++++++++++++++++++++++++++++++++++++++++++++----
1 file changed, 175 insertions(+), 12 deletions(-)
diff --git a/include/linux/usb/pd.h b/include/linux/usb/pd.h
index b3d41d7..09b570f 100644
--- a/include/linux/usb/pd.h
+++ b/include/linux/usb/pd.h
@@ -35,6 +35,13 @@ enum pd_ctrl_msg_type {
PD_CTRL_WAIT = 12,
PD_CTRL_SOFT_RESET = 13,
/* 14-15 Reserved */
+ PD_CTRL_NOT_SUPP = 16,
+ PD_CTRL_GET_SOURCE_CAP_EXT = 17,
+ PD_CTRL_GET_STATUS = 18,
+ PD_CTRL_FR_SWAP = 19,
+ PD_CTRL_GET_PPS_STATUS = 20,
+ PD_CTRL_GET_COUNTRY_CODES = 21,
+ /* 22-31 Reserved */
};
enum pd_data_msg_type {
@@ -43,13 +50,39 @@ enum pd_data_msg_type {
PD_DATA_REQUEST = 2,
PD_DATA_BIST = 3,
PD_DATA_SINK_CAP = 4,
- /* 5-14 Reserved */
+ PD_DATA_BATT_STATUS = 5,
+ PD_DATA_ALERT = 6,
+ PD_DATA_GET_COUNTRY_INFO = 7,
+ /* 8-14 Reserved */
PD_DATA_VENDOR_DEF = 15,
+ /* 16-31 Reserved */
+};
+
+enum pd_ext_msg_type {
+ /* 0 Reserved */
+ PD_EXT_SOURCE_CAP_EXT = 1,
+ PD_EXT_STATUS = 2,
+ PD_EXT_GET_BATT_CAP = 3,
+ PD_EXT_GET_BATT_STATUS = 4,
+ PD_EXT_BATT_CAP = 5,
+ PD_EXT_GET_MANUFACTURER_INFO = 6,
+ PD_EXT_MANUFACTURER_INFO = 7,
+ PD_EXT_SECURITY_REQUEST = 8,
+ PD_EXT_SECURITY_RESPONSE = 9,
+ PD_EXT_FW_UPDATE_REQUEST = 10,
+ PD_EXT_FW_UPDATE_RESPONSE = 11,
+ PD_EXT_PPS_STATUS = 12,
+ PD_EXT_COUNTRY_INFO = 13,
+ PD_EXT_COUNTRY_CODES = 14,
+ /* 15-31 Reserved */
};
#define PD_REV10 0x0
#define PD_REV20 0x1
+#define PD_REV30 0x2
+#define PD_MAX_REV PD_REV30
+#define PD_HEADER_EXT_HDR BIT(15)
#define PD_HEADER_CNT_SHIFT 12
#define PD_HEADER_CNT_MASK 0x7
#define PD_HEADER_ID_SHIFT 9
@@ -59,18 +92,19 @@ enum pd_data_msg_type {
#define PD_HEADER_REV_MASK 0x3
#define PD_HEADER_DATA_ROLE BIT(5)
#define PD_HEADER_TYPE_SHIFT 0
-#define PD_HEADER_TYPE_MASK 0xf
+#define PD_HEADER_TYPE_MASK 0x1f
-#define PD_HEADER(type, pwr, data, id, cnt) \
+#define PD_HEADER(type, pwr, data, rev, id, cnt, ext_hdr) \
((((type) & PD_HEADER_TYPE_MASK) << PD_HEADER_TYPE_SHIFT) | \
((pwr) == TYPEC_SOURCE ? PD_HEADER_PWR_ROLE : 0) | \
((data) == TYPEC_HOST ? PD_HEADER_DATA_ROLE : 0) | \
- (PD_REV20 << PD_HEADER_REV_SHIFT) | \
+ (rev << PD_HEADER_REV_SHIFT) | \
(((id) & PD_HEADER_ID_MASK) << PD_HEADER_ID_SHIFT) | \
- (((cnt) & PD_HEADER_CNT_MASK) << PD_HEADER_CNT_SHIFT))
+ (((cnt) & PD_HEADER_CNT_MASK) << PD_HEADER_CNT_SHIFT) | \
+ ((ext_hdr) ? PD_HEADER_EXT_HDR : 0))
-#define PD_HEADER_LE(type, pwr, data, id, cnt) \
- cpu_to_le16(PD_HEADER((type), (pwr), (data), (id), (cnt)))
+#define PD_HEADER_LE(type, pwr, data, rev, id, cnt) \
+ cpu_to_le16(PD_HEADER((type), (pwr), (data), (rev), (id), (cnt), (0)))
static inline unsigned int pd_header_cnt(u16 header)
{
@@ -102,16 +136,75 @@ static inline unsigned int pd_header_msgid_le(__le16 header)
return pd_header_msgid(le16_to_cpu(header));
}
+static inline unsigned int pd_header_rev(u16 header)
+{
+ return (header >> PD_HEADER_REV_SHIFT) & PD_HEADER_REV_MASK;
+}
+
+static inline unsigned int pd_header_rev_le(__le16 header)
+{
+ return pd_header_rev(le16_to_cpu(header));
+}
+
+#define PD_EXT_HDR_CHUNKED BIT(15)
+#define PD_EXT_HDR_CHUNK_NUM_SHIFT 11
+#define PD_EXT_HDR_CHUNK_NUM_MASK 0xf
+#define PD_EXT_HDR_REQ_CHUNK BIT(10)
+#define PD_EXT_HDR_DATA_SIZE_SHIFT 0
+#define PD_EXT_HDR_DATA_SIZE_MASK 0x1ff
+
+#define PD_EXT_HDR(data_size, req_chunk, chunk_num, chunked) \
+ ((((data_size) & PD_EXT_HDR_DATA_SIZE_MASK) << PD_EXT_HDR_DATA_SIZE_SHIFT) | \
+ ((req_chunk) ? PD_EXT_HDR_REQ_CHUNK : 0) | \
+ (((chunk_num) & PD_EXT_HDR_CHUNK_NUM_MASK) << PD_EXT_HDR_CHUNK_NUM_SHIFT) | \
+ ((chunked) ? PD_EXT_HDR_CHUNKED : 0))
+
+#define PD_EXT_HDR_LE(data_size, req_chunk, chunk_num, chunked) \
+ cpu_to_le16(PD_EXT_HDR((data_size), (req_chunk), (chunk_num), (chunked)))
+
+static inline unsigned int pd_ext_header_chunk_num(u16 ext_header)
+{
+ return (ext_header >> PD_EXT_HDR_CHUNK_NUM_SHIFT) &
+ PD_EXT_HDR_CHUNK_NUM_MASK;
+}
+
+static inline unsigned int pd_ext_header_data_size(u16 ext_header)
+{
+ return (ext_header >> PD_EXT_HDR_DATA_SIZE_SHIFT) &
+ PD_EXT_HDR_DATA_SIZE_MASK;
+}
+
+static inline unsigned int pd_ext_header_data_size_le(__le16 ext_header)
+{
+ return pd_ext_header_data_size(le16_to_cpu(ext_header));
+}
+
#define PD_MAX_PAYLOAD 7
+#define PD_EXT_MAX_CHUNK_DATA 26
/**
- * struct pd_message - PD message as seen on wire
- * @header: PD message header
- * @payload: PD message payload
- */
+ * struct pd_chunked_ext_message_data - PD chunked extended message data as
+ * seen on wire
+ * @header: PD extended message header
+ * @data: PD extended message data
+ */
+struct pd_chunked_ext_message_data {
+ __le16 header;
+ u8 data[PD_EXT_MAX_CHUNK_DATA];
+} __packed;
+
+/**
+ * struct pd_message - PD message as seen on wire
+ * @header: PD message header
+ * @payload: PD message payload
+ * @ext_msg: PD message chunked extended message data
+ */
struct pd_message {
__le16 header;
- __le32 payload[PD_MAX_PAYLOAD];
+ union {
+ __le32 payload[PD_MAX_PAYLOAD];
+ struct pd_chunked_ext_message_data ext_msg;
+ };
} __packed;
/* PDO: Power Data Object */
@@ -121,6 +214,7 @@ enum pd_pdo_type {
PDO_TYPE_FIXED = 0,
PDO_TYPE_BATT = 1,
PDO_TYPE_VAR = 2,
+ PDO_TYPE_APDO = 3,
};
#define PDO_TYPE_SHIFT 30
@@ -174,6 +268,34 @@ enum pd_pdo_type {
(PDO_TYPE(PDO_TYPE_VAR) | PDO_VAR_MIN_VOLT(min_mv) | \
PDO_VAR_MAX_VOLT(max_mv) | PDO_VAR_MAX_CURR(max_ma))
+enum pd_apdo_type {
+ APDO_TYPE_PPS = 0,
+};
+
+#define PDO_APDO_TYPE_SHIFT 28 /* Only valid value currently is 0x0 - PPS */
+#define PDO_APDO_TYPE_MASK 0x3
+
+#define PDO_APDO_TYPE(t) ((t) << PDO_APDO_TYPE_SHIFT)
+
+#define PDO_PPS_APDO_MAX_VOLT_SHIFT 17 /* 100mV units */
+#define PDO_PPS_APDO_MIN_VOLT_SHIFT 8 /* 100mV units */
+#define PDO_PPS_APDO_MAX_CURR_SHIFT 0 /* 50mA units */
+
+#define PDO_PPS_APDO_VOLT_MASK 0xff
+#define PDO_PPS_APDO_CURR_MASK 0x7f
+
+#define PDO_PPS_APDO_MIN_VOLT(mv) \
+ ((((mv) / 100) & PDO_PPS_APDO_VOLT_MASK) << PDO_PPS_APDO_MIN_VOLT_SHIFT)
+#define PDO_PPS_APDO_MAX_VOLT(mv) \
+ ((((mv) / 100) & PDO_PPS_APDO_VOLT_MASK) << PDO_PPS_APDO_MAX_VOLT_SHIFT)
+#define PDO_PPS_APDO_MAX_CURR(ma) \
+ ((((ma) / 50) & PDO_PPS_APDO_CURR_MASK) << PDO_PPS_APDO_MAX_CURR_SHIFT)
+
+#define PDO_PPS_APDO(min_mv, max_mv, max_ma) \
+ (PDO_TYPE(PDO_TYPE_APDO) | PDO_APDO_TYPE(APDO_TYPE_PPS) | \
+ PDO_PPS_APDO_MIN_VOLT(min_mv) | PDO_PPS_APDO_MAX_VOLT(max_mv) | \
+ PDO_PPS_APDO_MAX_CURR(max_ma))
+
static inline enum pd_pdo_type pdo_type(u32 pdo)
{
return (pdo >> PDO_TYPE_SHIFT) & PDO_TYPE_MASK;
@@ -204,6 +326,29 @@ static inline unsigned int pdo_max_power(u32 pdo)
return ((pdo >> PDO_BATT_MAX_PWR_SHIFT) & PDO_PWR_MASK) * 250;
}
+static inline enum pd_apdo_type pdo_apdo_type(u32 pdo)
+{
+ return (pdo >> PDO_APDO_TYPE_SHIFT) & PDO_APDO_TYPE_MASK;
+}
+
+static inline unsigned int pdo_pps_apdo_min_voltage(u32 pdo)
+{
+ return ((pdo >> PDO_PPS_APDO_MIN_VOLT_SHIFT) &
+ PDO_PPS_APDO_VOLT_MASK) * 100;
+}
+
+static inline unsigned int pdo_pps_apdo_max_voltage(u32 pdo)
+{
+ return ((pdo >> PDO_PPS_APDO_MAX_VOLT_SHIFT) &
+ PDO_PPS_APDO_VOLT_MASK) * 100;
+}
+
+static inline unsigned int pdo_pps_apdo_max_current(u32 pdo)
+{
+ return ((pdo >> PDO_PPS_APDO_MAX_CURR_SHIFT) &
+ PDO_PPS_APDO_CURR_MASK) * 50;
+}
+
/* RDO: Request Data Object */
#define RDO_OBJ_POS_SHIFT 28
#define RDO_OBJ_POS_MASK 0x7
@@ -237,6 +382,24 @@ static inline unsigned int pdo_max_power(u32 pdo)
(RDO_OBJ(idx) | (flags) | \
RDO_BATT_OP_PWR(op_mw) | RDO_BATT_MAX_PWR(max_mw))
+#define RDO_PROG_VOLT_MASK 0x7ff
+#define RDO_PROG_CURR_MASK 0x7f
+
+#define RDO_PROG_VOLT_SHIFT 9
+#define RDO_PROG_CURR_SHIFT 0
+
+#define RDO_PROG_VOLT_MV_STEP 20
+#define RDO_PROG_CURR_MA_STEP 50
+
+#define PDO_PROG_OUT_VOLT(mv) \
+ ((((mv) / RDO_PROG_VOLT_MV_STEP) & RDO_PROG_VOLT_MASK) << RDO_PROG_VOLT_SHIFT)
+#define PDO_PROG_OP_CURR(ma) \
+ ((((ma) / RDO_PROG_CURR_MA_STEP) & RDO_PROG_CURR_MASK) << RDO_PROG_CURR_SHIFT)
+
+#define RDO_PROG(idx, out_mv, op_ma, flags) \
+ (RDO_OBJ(idx) | (flags) | \
+ PDO_PROG_OUT_VOLT(out_mv) | PDO_PROG_OP_CURR(op_ma))
+
static inline unsigned int rdo_index(u32 rdo)
{
return (rdo >> RDO_OBJ_POS_SHIFT) & RDO_OBJ_POS_MASK;
--
1.9.1
^ permalink raw reply related [flat|nested] 31+ messages in thread
* [v3,1/7] typec: tcpm: Add PD Rev 3.0 definitions to PD header
@ 2017-12-18 12:41 ` Opensource [Adam Thomson]
0 siblings, 0 replies; 31+ messages in thread
From: Opensource [Adam Thomson] @ 2017-12-18 12:41 UTC (permalink / raw)
To: Heikki Krogerus, Guenter Roeck, Greg Kroah-Hartman,
Sebastian Reichel, Hans de Goede, Yueyao Zhu, Rui Miguel Silva
Cc: linux-usb, linux-pm, linux-kernel, support.opensource
This commit adds definitions for PD Rev 3.0 messages, including
APDO PPS and extended message support for TCPM.
Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
---
include/linux/usb/pd.h | 187 +++++++++++++++++++++++++++++++++++++++++++++----
1 file changed, 175 insertions(+), 12 deletions(-)
diff --git a/include/linux/usb/pd.h b/include/linux/usb/pd.h
index b3d41d7..09b570f 100644
--- a/include/linux/usb/pd.h
+++ b/include/linux/usb/pd.h
@@ -35,6 +35,13 @@ enum pd_ctrl_msg_type {
PD_CTRL_WAIT = 12,
PD_CTRL_SOFT_RESET = 13,
/* 14-15 Reserved */
+ PD_CTRL_NOT_SUPP = 16,
+ PD_CTRL_GET_SOURCE_CAP_EXT = 17,
+ PD_CTRL_GET_STATUS = 18,
+ PD_CTRL_FR_SWAP = 19,
+ PD_CTRL_GET_PPS_STATUS = 20,
+ PD_CTRL_GET_COUNTRY_CODES = 21,
+ /* 22-31 Reserved */
};
enum pd_data_msg_type {
@@ -43,13 +50,39 @@ enum pd_data_msg_type {
PD_DATA_REQUEST = 2,
PD_DATA_BIST = 3,
PD_DATA_SINK_CAP = 4,
- /* 5-14 Reserved */
+ PD_DATA_BATT_STATUS = 5,
+ PD_DATA_ALERT = 6,
+ PD_DATA_GET_COUNTRY_INFO = 7,
+ /* 8-14 Reserved */
PD_DATA_VENDOR_DEF = 15,
+ /* 16-31 Reserved */
+};
+
+enum pd_ext_msg_type {
+ /* 0 Reserved */
+ PD_EXT_SOURCE_CAP_EXT = 1,
+ PD_EXT_STATUS = 2,
+ PD_EXT_GET_BATT_CAP = 3,
+ PD_EXT_GET_BATT_STATUS = 4,
+ PD_EXT_BATT_CAP = 5,
+ PD_EXT_GET_MANUFACTURER_INFO = 6,
+ PD_EXT_MANUFACTURER_INFO = 7,
+ PD_EXT_SECURITY_REQUEST = 8,
+ PD_EXT_SECURITY_RESPONSE = 9,
+ PD_EXT_FW_UPDATE_REQUEST = 10,
+ PD_EXT_FW_UPDATE_RESPONSE = 11,
+ PD_EXT_PPS_STATUS = 12,
+ PD_EXT_COUNTRY_INFO = 13,
+ PD_EXT_COUNTRY_CODES = 14,
+ /* 15-31 Reserved */
};
#define PD_REV10 0x0
#define PD_REV20 0x1
+#define PD_REV30 0x2
+#define PD_MAX_REV PD_REV30
+#define PD_HEADER_EXT_HDR BIT(15)
#define PD_HEADER_CNT_SHIFT 12
#define PD_HEADER_CNT_MASK 0x7
#define PD_HEADER_ID_SHIFT 9
@@ -59,18 +92,19 @@ enum pd_data_msg_type {
#define PD_HEADER_REV_MASK 0x3
#define PD_HEADER_DATA_ROLE BIT(5)
#define PD_HEADER_TYPE_SHIFT 0
-#define PD_HEADER_TYPE_MASK 0xf
+#define PD_HEADER_TYPE_MASK 0x1f
-#define PD_HEADER(type, pwr, data, id, cnt) \
+#define PD_HEADER(type, pwr, data, rev, id, cnt, ext_hdr) \
((((type) & PD_HEADER_TYPE_MASK) << PD_HEADER_TYPE_SHIFT) | \
((pwr) == TYPEC_SOURCE ? PD_HEADER_PWR_ROLE : 0) | \
((data) == TYPEC_HOST ? PD_HEADER_DATA_ROLE : 0) | \
- (PD_REV20 << PD_HEADER_REV_SHIFT) | \
+ (rev << PD_HEADER_REV_SHIFT) | \
(((id) & PD_HEADER_ID_MASK) << PD_HEADER_ID_SHIFT) | \
- (((cnt) & PD_HEADER_CNT_MASK) << PD_HEADER_CNT_SHIFT))
+ (((cnt) & PD_HEADER_CNT_MASK) << PD_HEADER_CNT_SHIFT) | \
+ ((ext_hdr) ? PD_HEADER_EXT_HDR : 0))
-#define PD_HEADER_LE(type, pwr, data, id, cnt) \
- cpu_to_le16(PD_HEADER((type), (pwr), (data), (id), (cnt)))
+#define PD_HEADER_LE(type, pwr, data, rev, id, cnt) \
+ cpu_to_le16(PD_HEADER((type), (pwr), (data), (rev), (id), (cnt), (0)))
static inline unsigned int pd_header_cnt(u16 header)
{
@@ -102,16 +136,75 @@ static inline unsigned int pd_header_msgid_le(__le16 header)
return pd_header_msgid(le16_to_cpu(header));
}
+static inline unsigned int pd_header_rev(u16 header)
+{
+ return (header >> PD_HEADER_REV_SHIFT) & PD_HEADER_REV_MASK;
+}
+
+static inline unsigned int pd_header_rev_le(__le16 header)
+{
+ return pd_header_rev(le16_to_cpu(header));
+}
+
+#define PD_EXT_HDR_CHUNKED BIT(15)
+#define PD_EXT_HDR_CHUNK_NUM_SHIFT 11
+#define PD_EXT_HDR_CHUNK_NUM_MASK 0xf
+#define PD_EXT_HDR_REQ_CHUNK BIT(10)
+#define PD_EXT_HDR_DATA_SIZE_SHIFT 0
+#define PD_EXT_HDR_DATA_SIZE_MASK 0x1ff
+
+#define PD_EXT_HDR(data_size, req_chunk, chunk_num, chunked) \
+ ((((data_size) & PD_EXT_HDR_DATA_SIZE_MASK) << PD_EXT_HDR_DATA_SIZE_SHIFT) | \
+ ((req_chunk) ? PD_EXT_HDR_REQ_CHUNK : 0) | \
+ (((chunk_num) & PD_EXT_HDR_CHUNK_NUM_MASK) << PD_EXT_HDR_CHUNK_NUM_SHIFT) | \
+ ((chunked) ? PD_EXT_HDR_CHUNKED : 0))
+
+#define PD_EXT_HDR_LE(data_size, req_chunk, chunk_num, chunked) \
+ cpu_to_le16(PD_EXT_HDR((data_size), (req_chunk), (chunk_num), (chunked)))
+
+static inline unsigned int pd_ext_header_chunk_num(u16 ext_header)
+{
+ return (ext_header >> PD_EXT_HDR_CHUNK_NUM_SHIFT) &
+ PD_EXT_HDR_CHUNK_NUM_MASK;
+}
+
+static inline unsigned int pd_ext_header_data_size(u16 ext_header)
+{
+ return (ext_header >> PD_EXT_HDR_DATA_SIZE_SHIFT) &
+ PD_EXT_HDR_DATA_SIZE_MASK;
+}
+
+static inline unsigned int pd_ext_header_data_size_le(__le16 ext_header)
+{
+ return pd_ext_header_data_size(le16_to_cpu(ext_header));
+}
+
#define PD_MAX_PAYLOAD 7
+#define PD_EXT_MAX_CHUNK_DATA 26
/**
- * struct pd_message - PD message as seen on wire
- * @header: PD message header
- * @payload: PD message payload
- */
+ * struct pd_chunked_ext_message_data - PD chunked extended message data as
+ * seen on wire
+ * @header: PD extended message header
+ * @data: PD extended message data
+ */
+struct pd_chunked_ext_message_data {
+ __le16 header;
+ u8 data[PD_EXT_MAX_CHUNK_DATA];
+} __packed;
+
+/**
+ * struct pd_message - PD message as seen on wire
+ * @header: PD message header
+ * @payload: PD message payload
+ * @ext_msg: PD message chunked extended message data
+ */
struct pd_message {
__le16 header;
- __le32 payload[PD_MAX_PAYLOAD];
+ union {
+ __le32 payload[PD_MAX_PAYLOAD];
+ struct pd_chunked_ext_message_data ext_msg;
+ };
} __packed;
/* PDO: Power Data Object */
@@ -121,6 +214,7 @@ enum pd_pdo_type {
PDO_TYPE_FIXED = 0,
PDO_TYPE_BATT = 1,
PDO_TYPE_VAR = 2,
+ PDO_TYPE_APDO = 3,
};
#define PDO_TYPE_SHIFT 30
@@ -174,6 +268,34 @@ enum pd_pdo_type {
(PDO_TYPE(PDO_TYPE_VAR) | PDO_VAR_MIN_VOLT(min_mv) | \
PDO_VAR_MAX_VOLT(max_mv) | PDO_VAR_MAX_CURR(max_ma))
+enum pd_apdo_type {
+ APDO_TYPE_PPS = 0,
+};
+
+#define PDO_APDO_TYPE_SHIFT 28 /* Only valid value currently is 0x0 - PPS */
+#define PDO_APDO_TYPE_MASK 0x3
+
+#define PDO_APDO_TYPE(t) ((t) << PDO_APDO_TYPE_SHIFT)
+
+#define PDO_PPS_APDO_MAX_VOLT_SHIFT 17 /* 100mV units */
+#define PDO_PPS_APDO_MIN_VOLT_SHIFT 8 /* 100mV units */
+#define PDO_PPS_APDO_MAX_CURR_SHIFT 0 /* 50mA units */
+
+#define PDO_PPS_APDO_VOLT_MASK 0xff
+#define PDO_PPS_APDO_CURR_MASK 0x7f
+
+#define PDO_PPS_APDO_MIN_VOLT(mv) \
+ ((((mv) / 100) & PDO_PPS_APDO_VOLT_MASK) << PDO_PPS_APDO_MIN_VOLT_SHIFT)
+#define PDO_PPS_APDO_MAX_VOLT(mv) \
+ ((((mv) / 100) & PDO_PPS_APDO_VOLT_MASK) << PDO_PPS_APDO_MAX_VOLT_SHIFT)
+#define PDO_PPS_APDO_MAX_CURR(ma) \
+ ((((ma) / 50) & PDO_PPS_APDO_CURR_MASK) << PDO_PPS_APDO_MAX_CURR_SHIFT)
+
+#define PDO_PPS_APDO(min_mv, max_mv, max_ma) \
+ (PDO_TYPE(PDO_TYPE_APDO) | PDO_APDO_TYPE(APDO_TYPE_PPS) | \
+ PDO_PPS_APDO_MIN_VOLT(min_mv) | PDO_PPS_APDO_MAX_VOLT(max_mv) | \
+ PDO_PPS_APDO_MAX_CURR(max_ma))
+
static inline enum pd_pdo_type pdo_type(u32 pdo)
{
return (pdo >> PDO_TYPE_SHIFT) & PDO_TYPE_MASK;
@@ -204,6 +326,29 @@ static inline unsigned int pdo_max_power(u32 pdo)
return ((pdo >> PDO_BATT_MAX_PWR_SHIFT) & PDO_PWR_MASK) * 250;
}
+static inline enum pd_apdo_type pdo_apdo_type(u32 pdo)
+{
+ return (pdo >> PDO_APDO_TYPE_SHIFT) & PDO_APDO_TYPE_MASK;
+}
+
+static inline unsigned int pdo_pps_apdo_min_voltage(u32 pdo)
+{
+ return ((pdo >> PDO_PPS_APDO_MIN_VOLT_SHIFT) &
+ PDO_PPS_APDO_VOLT_MASK) * 100;
+}
+
+static inline unsigned int pdo_pps_apdo_max_voltage(u32 pdo)
+{
+ return ((pdo >> PDO_PPS_APDO_MAX_VOLT_SHIFT) &
+ PDO_PPS_APDO_VOLT_MASK) * 100;
+}
+
+static inline unsigned int pdo_pps_apdo_max_current(u32 pdo)
+{
+ return ((pdo >> PDO_PPS_APDO_MAX_CURR_SHIFT) &
+ PDO_PPS_APDO_CURR_MASK) * 50;
+}
+
/* RDO: Request Data Object */
#define RDO_OBJ_POS_SHIFT 28
#define RDO_OBJ_POS_MASK 0x7
@@ -237,6 +382,24 @@ static inline unsigned int pdo_max_power(u32 pdo)
(RDO_OBJ(idx) | (flags) | \
RDO_BATT_OP_PWR(op_mw) | RDO_BATT_MAX_PWR(max_mw))
+#define RDO_PROG_VOLT_MASK 0x7ff
+#define RDO_PROG_CURR_MASK 0x7f
+
+#define RDO_PROG_VOLT_SHIFT 9
+#define RDO_PROG_CURR_SHIFT 0
+
+#define RDO_PROG_VOLT_MV_STEP 20
+#define RDO_PROG_CURR_MA_STEP 50
+
+#define PDO_PROG_OUT_VOLT(mv) \
+ ((((mv) / RDO_PROG_VOLT_MV_STEP) & RDO_PROG_VOLT_MASK) << RDO_PROG_VOLT_SHIFT)
+#define PDO_PROG_OP_CURR(ma) \
+ ((((ma) / RDO_PROG_CURR_MA_STEP) & RDO_PROG_CURR_MASK) << RDO_PROG_CURR_SHIFT)
+
+#define RDO_PROG(idx, out_mv, op_ma, flags) \
+ (RDO_OBJ(idx) | (flags) | \
+ PDO_PROG_OUT_VOLT(out_mv) | PDO_PROG_OP_CURR(op_ma))
+
static inline unsigned int rdo_index(u32 rdo)
{
return (rdo >> RDO_OBJ_POS_SHIFT) & RDO_OBJ_POS_MASK;
^ permalink raw reply related [flat|nested] 31+ messages in thread
* [PATCH v3 1/7] typec: tcpm: Add PD Rev 3.0 definitions to PD header
@ 2017-12-18 12:41 ` Opensource [Adam Thomson]
0 siblings, 0 replies; 31+ messages in thread
From: Adam Thomson @ 2017-12-18 12:41 UTC (permalink / raw)
To: Heikki Krogerus, Guenter Roeck, Greg Kroah-Hartman,
Sebastian Reichel, Hans de Goede, Yueyao Zhu, Rui Miguel Silva
Cc: linux-usb, linux-pm, linux-kernel, support.opensource
This commit adds definitions for PD Rev 3.0 messages, including
APDO PPS and extended message support for TCPM.
Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
---
include/linux/usb/pd.h | 187 +++++++++++++++++++++++++++++++++++++++++++++----
1 file changed, 175 insertions(+), 12 deletions(-)
diff --git a/include/linux/usb/pd.h b/include/linux/usb/pd.h
index b3d41d7..09b570f 100644
--- a/include/linux/usb/pd.h
+++ b/include/linux/usb/pd.h
@@ -35,6 +35,13 @@ enum pd_ctrl_msg_type {
PD_CTRL_WAIT = 12,
PD_CTRL_SOFT_RESET = 13,
/* 14-15 Reserved */
+ PD_CTRL_NOT_SUPP = 16,
+ PD_CTRL_GET_SOURCE_CAP_EXT = 17,
+ PD_CTRL_GET_STATUS = 18,
+ PD_CTRL_FR_SWAP = 19,
+ PD_CTRL_GET_PPS_STATUS = 20,
+ PD_CTRL_GET_COUNTRY_CODES = 21,
+ /* 22-31 Reserved */
};
enum pd_data_msg_type {
@@ -43,13 +50,39 @@ enum pd_data_msg_type {
PD_DATA_REQUEST = 2,
PD_DATA_BIST = 3,
PD_DATA_SINK_CAP = 4,
- /* 5-14 Reserved */
+ PD_DATA_BATT_STATUS = 5,
+ PD_DATA_ALERT = 6,
+ PD_DATA_GET_COUNTRY_INFO = 7,
+ /* 8-14 Reserved */
PD_DATA_VENDOR_DEF = 15,
+ /* 16-31 Reserved */
+};
+
+enum pd_ext_msg_type {
+ /* 0 Reserved */
+ PD_EXT_SOURCE_CAP_EXT = 1,
+ PD_EXT_STATUS = 2,
+ PD_EXT_GET_BATT_CAP = 3,
+ PD_EXT_GET_BATT_STATUS = 4,
+ PD_EXT_BATT_CAP = 5,
+ PD_EXT_GET_MANUFACTURER_INFO = 6,
+ PD_EXT_MANUFACTURER_INFO = 7,
+ PD_EXT_SECURITY_REQUEST = 8,
+ PD_EXT_SECURITY_RESPONSE = 9,
+ PD_EXT_FW_UPDATE_REQUEST = 10,
+ PD_EXT_FW_UPDATE_RESPONSE = 11,
+ PD_EXT_PPS_STATUS = 12,
+ PD_EXT_COUNTRY_INFO = 13,
+ PD_EXT_COUNTRY_CODES = 14,
+ /* 15-31 Reserved */
};
#define PD_REV10 0x0
#define PD_REV20 0x1
+#define PD_REV30 0x2
+#define PD_MAX_REV PD_REV30
+#define PD_HEADER_EXT_HDR BIT(15)
#define PD_HEADER_CNT_SHIFT 12
#define PD_HEADER_CNT_MASK 0x7
#define PD_HEADER_ID_SHIFT 9
@@ -59,18 +92,19 @@ enum pd_data_msg_type {
#define PD_HEADER_REV_MASK 0x3
#define PD_HEADER_DATA_ROLE BIT(5)
#define PD_HEADER_TYPE_SHIFT 0
-#define PD_HEADER_TYPE_MASK 0xf
+#define PD_HEADER_TYPE_MASK 0x1f
-#define PD_HEADER(type, pwr, data, id, cnt) \
+#define PD_HEADER(type, pwr, data, rev, id, cnt, ext_hdr) \
((((type) & PD_HEADER_TYPE_MASK) << PD_HEADER_TYPE_SHIFT) | \
((pwr) == TYPEC_SOURCE ? PD_HEADER_PWR_ROLE : 0) | \
((data) == TYPEC_HOST ? PD_HEADER_DATA_ROLE : 0) | \
- (PD_REV20 << PD_HEADER_REV_SHIFT) | \
+ (rev << PD_HEADER_REV_SHIFT) | \
(((id) & PD_HEADER_ID_MASK) << PD_HEADER_ID_SHIFT) | \
- (((cnt) & PD_HEADER_CNT_MASK) << PD_HEADER_CNT_SHIFT))
+ (((cnt) & PD_HEADER_CNT_MASK) << PD_HEADER_CNT_SHIFT) | \
+ ((ext_hdr) ? PD_HEADER_EXT_HDR : 0))
-#define PD_HEADER_LE(type, pwr, data, id, cnt) \
- cpu_to_le16(PD_HEADER((type), (pwr), (data), (id), (cnt)))
+#define PD_HEADER_LE(type, pwr, data, rev, id, cnt) \
+ cpu_to_le16(PD_HEADER((type), (pwr), (data), (rev), (id), (cnt), (0)))
static inline unsigned int pd_header_cnt(u16 header)
{
@@ -102,16 +136,75 @@ static inline unsigned int pd_header_msgid_le(__le16 header)
return pd_header_msgid(le16_to_cpu(header));
}
+static inline unsigned int pd_header_rev(u16 header)
+{
+ return (header >> PD_HEADER_REV_SHIFT) & PD_HEADER_REV_MASK;
+}
+
+static inline unsigned int pd_header_rev_le(__le16 header)
+{
+ return pd_header_rev(le16_to_cpu(header));
+}
+
+#define PD_EXT_HDR_CHUNKED BIT(15)
+#define PD_EXT_HDR_CHUNK_NUM_SHIFT 11
+#define PD_EXT_HDR_CHUNK_NUM_MASK 0xf
+#define PD_EXT_HDR_REQ_CHUNK BIT(10)
+#define PD_EXT_HDR_DATA_SIZE_SHIFT 0
+#define PD_EXT_HDR_DATA_SIZE_MASK 0x1ff
+
+#define PD_EXT_HDR(data_size, req_chunk, chunk_num, chunked) \
+ ((((data_size) & PD_EXT_HDR_DATA_SIZE_MASK) << PD_EXT_HDR_DATA_SIZE_SHIFT) | \
+ ((req_chunk) ? PD_EXT_HDR_REQ_CHUNK : 0) | \
+ (((chunk_num) & PD_EXT_HDR_CHUNK_NUM_MASK) << PD_EXT_HDR_CHUNK_NUM_SHIFT) | \
+ ((chunked) ? PD_EXT_HDR_CHUNKED : 0))
+
+#define PD_EXT_HDR_LE(data_size, req_chunk, chunk_num, chunked) \
+ cpu_to_le16(PD_EXT_HDR((data_size), (req_chunk), (chunk_num), (chunked)))
+
+static inline unsigned int pd_ext_header_chunk_num(u16 ext_header)
+{
+ return (ext_header >> PD_EXT_HDR_CHUNK_NUM_SHIFT) &
+ PD_EXT_HDR_CHUNK_NUM_MASK;
+}
+
+static inline unsigned int pd_ext_header_data_size(u16 ext_header)
+{
+ return (ext_header >> PD_EXT_HDR_DATA_SIZE_SHIFT) &
+ PD_EXT_HDR_DATA_SIZE_MASK;
+}
+
+static inline unsigned int pd_ext_header_data_size_le(__le16 ext_header)
+{
+ return pd_ext_header_data_size(le16_to_cpu(ext_header));
+}
+
#define PD_MAX_PAYLOAD 7
+#define PD_EXT_MAX_CHUNK_DATA 26
/**
- * struct pd_message - PD message as seen on wire
- * @header: PD message header
- * @payload: PD message payload
- */
+ * struct pd_chunked_ext_message_data - PD chunked extended message data as
+ * seen on wire
+ * @header: PD extended message header
+ * @data: PD extended message data
+ */
+struct pd_chunked_ext_message_data {
+ __le16 header;
+ u8 data[PD_EXT_MAX_CHUNK_DATA];
+} __packed;
+
+/**
+ * struct pd_message - PD message as seen on wire
+ * @header: PD message header
+ * @payload: PD message payload
+ * @ext_msg: PD message chunked extended message data
+ */
struct pd_message {
__le16 header;
- __le32 payload[PD_MAX_PAYLOAD];
+ union {
+ __le32 payload[PD_MAX_PAYLOAD];
+ struct pd_chunked_ext_message_data ext_msg;
+ };
} __packed;
/* PDO: Power Data Object */
@@ -121,6 +214,7 @@ enum pd_pdo_type {
PDO_TYPE_FIXED = 0,
PDO_TYPE_BATT = 1,
PDO_TYPE_VAR = 2,
+ PDO_TYPE_APDO = 3,
};
#define PDO_TYPE_SHIFT 30
@@ -174,6 +268,34 @@ enum pd_pdo_type {
(PDO_TYPE(PDO_TYPE_VAR) | PDO_VAR_MIN_VOLT(min_mv) | \
PDO_VAR_MAX_VOLT(max_mv) | PDO_VAR_MAX_CURR(max_ma))
+enum pd_apdo_type {
+ APDO_TYPE_PPS = 0,
+};
+
+#define PDO_APDO_TYPE_SHIFT 28 /* Only valid value currently is 0x0 - PPS */
+#define PDO_APDO_TYPE_MASK 0x3
+
+#define PDO_APDO_TYPE(t) ((t) << PDO_APDO_TYPE_SHIFT)
+
+#define PDO_PPS_APDO_MAX_VOLT_SHIFT 17 /* 100mV units */
+#define PDO_PPS_APDO_MIN_VOLT_SHIFT 8 /* 100mV units */
+#define PDO_PPS_APDO_MAX_CURR_SHIFT 0 /* 50mA units */
+
+#define PDO_PPS_APDO_VOLT_MASK 0xff
+#define PDO_PPS_APDO_CURR_MASK 0x7f
+
+#define PDO_PPS_APDO_MIN_VOLT(mv) \
+ ((((mv) / 100) & PDO_PPS_APDO_VOLT_MASK) << PDO_PPS_APDO_MIN_VOLT_SHIFT)
+#define PDO_PPS_APDO_MAX_VOLT(mv) \
+ ((((mv) / 100) & PDO_PPS_APDO_VOLT_MASK) << PDO_PPS_APDO_MAX_VOLT_SHIFT)
+#define PDO_PPS_APDO_MAX_CURR(ma) \
+ ((((ma) / 50) & PDO_PPS_APDO_CURR_MASK) << PDO_PPS_APDO_MAX_CURR_SHIFT)
+
+#define PDO_PPS_APDO(min_mv, max_mv, max_ma) \
+ (PDO_TYPE(PDO_TYPE_APDO) | PDO_APDO_TYPE(APDO_TYPE_PPS) | \
+ PDO_PPS_APDO_MIN_VOLT(min_mv) | PDO_PPS_APDO_MAX_VOLT(max_mv) | \
+ PDO_PPS_APDO_MAX_CURR(max_ma))
+
static inline enum pd_pdo_type pdo_type(u32 pdo)
{
return (pdo >> PDO_TYPE_SHIFT) & PDO_TYPE_MASK;
@@ -204,6 +326,29 @@ static inline unsigned int pdo_max_power(u32 pdo)
return ((pdo >> PDO_BATT_MAX_PWR_SHIFT) & PDO_PWR_MASK) * 250;
}
+static inline enum pd_apdo_type pdo_apdo_type(u32 pdo)
+{
+ return (pdo >> PDO_APDO_TYPE_SHIFT) & PDO_APDO_TYPE_MASK;
+}
+
+static inline unsigned int pdo_pps_apdo_min_voltage(u32 pdo)
+{
+ return ((pdo >> PDO_PPS_APDO_MIN_VOLT_SHIFT) &
+ PDO_PPS_APDO_VOLT_MASK) * 100;
+}
+
+static inline unsigned int pdo_pps_apdo_max_voltage(u32 pdo)
+{
+ return ((pdo >> PDO_PPS_APDO_MAX_VOLT_SHIFT) &
+ PDO_PPS_APDO_VOLT_MASK) * 100;
+}
+
+static inline unsigned int pdo_pps_apdo_max_current(u32 pdo)
+{
+ return ((pdo >> PDO_PPS_APDO_MAX_CURR_SHIFT) &
+ PDO_PPS_APDO_CURR_MASK) * 50;
+}
+
/* RDO: Request Data Object */
#define RDO_OBJ_POS_SHIFT 28
#define RDO_OBJ_POS_MASK 0x7
@@ -237,6 +382,24 @@ static inline unsigned int pdo_max_power(u32 pdo)
(RDO_OBJ(idx) | (flags) | \
RDO_BATT_OP_PWR(op_mw) | RDO_BATT_MAX_PWR(max_mw))
+#define RDO_PROG_VOLT_MASK 0x7ff
+#define RDO_PROG_CURR_MASK 0x7f
+
+#define RDO_PROG_VOLT_SHIFT 9
+#define RDO_PROG_CURR_SHIFT 0
+
+#define RDO_PROG_VOLT_MV_STEP 20
+#define RDO_PROG_CURR_MA_STEP 50
+
+#define PDO_PROG_OUT_VOLT(mv) \
+ ((((mv) / RDO_PROG_VOLT_MV_STEP) & RDO_PROG_VOLT_MASK) << RDO_PROG_VOLT_SHIFT)
+#define PDO_PROG_OP_CURR(ma) \
+ ((((ma) / RDO_PROG_CURR_MA_STEP) & RDO_PROG_CURR_MASK) << RDO_PROG_CURR_SHIFT)
+
+#define RDO_PROG(idx, out_mv, op_ma, flags) \
+ (RDO_OBJ(idx) | (flags) | \
+ PDO_PROG_OUT_VOLT(out_mv) | PDO_PROG_OP_CURR(op_ma))
+
static inline unsigned int rdo_index(u32 rdo)
{
return (rdo >> RDO_OBJ_POS_SHIFT) & RDO_OBJ_POS_MASK;
--
1.9.1
^ permalink raw reply related [flat|nested] 31+ messages in thread
* [PATCH v3 2/7] typec: tcpm: Add ADO header for Alert message handling
@ 2017-12-18 12:41 ` Opensource [Adam Thomson]
0 siblings, 0 replies; 31+ messages in thread
From: Adam Thomson @ 2017-12-18 12:41 UTC (permalink / raw)
To: Heikki Krogerus, Guenter Roeck, Greg Kroah-Hartman,
Sebastian Reichel, Hans de Goede, Yueyao Zhu, Rui Miguel Silva
Cc: linux-usb, linux-pm, linux-kernel, support.opensource
This commit adds a header providing definitions for handling Alert
messages. Currently the header only focuses on handling incoming
alerts.
Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
---
include/linux/usb/pd_ado.h | 42 ++++++++++++++++++++++++++++++++++++++++++
1 file changed, 42 insertions(+)
create mode 100644 include/linux/usb/pd_ado.h
diff --git a/include/linux/usb/pd_ado.h b/include/linux/usb/pd_ado.h
new file mode 100644
index 0000000..9aa1cf3
--- /dev/null
+++ b/include/linux/usb/pd_ado.h
@@ -0,0 +1,42 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (c) 2017 Dialog Semiconductor
+ *
+ * Author: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
+ */
+
+#ifndef __LINUX_USB_PD_ADO_H
+#define __LINUX_USB_PD_ADO_H
+
+/* ADO : Alert Data Object */
+#define USB_PD_ADO_TYPE_SHIFT 24
+#define USB_PD_ADO_TYPE_MASK 0xff
+#define USB_PD_ADO_FIXED_BATT_SHIFT 20
+#define USB_PD_ADO_FIXED_BATT_MASK 0xf
+#define USB_PD_ADO_HOT_SWAP_BATT_SHIFT 16
+#define USB_PD_ADO_HOT_SWAP_BATT_MASK 0xf
+
+#define USB_PD_ADO_TYPE_BATT_STATUS_CHANGE BIT(1)
+#define USB_PD_ADO_TYPE_OCP BIT(2)
+#define USB_PD_ADO_TYPE_OTP BIT(3)
+#define USB_PD_ADO_TYPE_OP_COND_CHANGE BIT(4)
+#define USB_PD_ADO_TYPE_SRC_INPUT_CHANGE BIT(5)
+#define USB_PD_ADO_TYPE_OVP BIT(6)
+
+static inline unsigned int usb_pd_ado_type(u32 ado)
+{
+ return (ado >> USB_PD_ADO_TYPE_SHIFT) & USB_PD_ADO_TYPE_MASK;
+}
+
+static inline unsigned int usb_pd_ado_fixed_batt(u32 ado)
+{
+ return (ado >> USB_PD_ADO_FIXED_BATT_SHIFT) &
+ USB_PD_ADO_FIXED_BATT_MASK;
+}
+
+static inline unsigned int usb_pd_ado_hot_swap_batt(u32 ado)
+{
+ return (ado >> USB_PD_ADO_HOT_SWAP_BATT_SHIFT) &
+ USB_PD_ADO_HOT_SWAP_BATT_MASK;
+}
+#endif /* __LINUX_USB_PD_ADO_H */
--
1.9.1
^ permalink raw reply related [flat|nested] 31+ messages in thread
* [v3,2/7] typec: tcpm: Add ADO header for Alert message handling
@ 2017-12-18 12:41 ` Opensource [Adam Thomson]
0 siblings, 0 replies; 31+ messages in thread
From: Opensource [Adam Thomson] @ 2017-12-18 12:41 UTC (permalink / raw)
To: Heikki Krogerus, Guenter Roeck, Greg Kroah-Hartman,
Sebastian Reichel, Hans de Goede, Yueyao Zhu, Rui Miguel Silva
Cc: linux-usb, linux-pm, linux-kernel, support.opensource
This commit adds a header providing definitions for handling Alert
messages. Currently the header only focuses on handling incoming
alerts.
Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
---
include/linux/usb/pd_ado.h | 42 ++++++++++++++++++++++++++++++++++++++++++
1 file changed, 42 insertions(+)
create mode 100644 include/linux/usb/pd_ado.h
diff --git a/include/linux/usb/pd_ado.h b/include/linux/usb/pd_ado.h
new file mode 100644
index 0000000..9aa1cf3
--- /dev/null
+++ b/include/linux/usb/pd_ado.h
@@ -0,0 +1,42 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (c) 2017 Dialog Semiconductor
+ *
+ * Author: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
+ */
+
+#ifndef __LINUX_USB_PD_ADO_H
+#define __LINUX_USB_PD_ADO_H
+
+/* ADO : Alert Data Object */
+#define USB_PD_ADO_TYPE_SHIFT 24
+#define USB_PD_ADO_TYPE_MASK 0xff
+#define USB_PD_ADO_FIXED_BATT_SHIFT 20
+#define USB_PD_ADO_FIXED_BATT_MASK 0xf
+#define USB_PD_ADO_HOT_SWAP_BATT_SHIFT 16
+#define USB_PD_ADO_HOT_SWAP_BATT_MASK 0xf
+
+#define USB_PD_ADO_TYPE_BATT_STATUS_CHANGE BIT(1)
+#define USB_PD_ADO_TYPE_OCP BIT(2)
+#define USB_PD_ADO_TYPE_OTP BIT(3)
+#define USB_PD_ADO_TYPE_OP_COND_CHANGE BIT(4)
+#define USB_PD_ADO_TYPE_SRC_INPUT_CHANGE BIT(5)
+#define USB_PD_ADO_TYPE_OVP BIT(6)
+
+static inline unsigned int usb_pd_ado_type(u32 ado)
+{
+ return (ado >> USB_PD_ADO_TYPE_SHIFT) & USB_PD_ADO_TYPE_MASK;
+}
+
+static inline unsigned int usb_pd_ado_fixed_batt(u32 ado)
+{
+ return (ado >> USB_PD_ADO_FIXED_BATT_SHIFT) &
+ USB_PD_ADO_FIXED_BATT_MASK;
+}
+
+static inline unsigned int usb_pd_ado_hot_swap_batt(u32 ado)
+{
+ return (ado >> USB_PD_ADO_HOT_SWAP_BATT_SHIFT) &
+ USB_PD_ADO_HOT_SWAP_BATT_MASK;
+}
+#endif /* __LINUX_USB_PD_ADO_H */
^ permalink raw reply related [flat|nested] 31+ messages in thread
* [PATCH v3 2/7] typec: tcpm: Add ADO header for Alert message handling
@ 2017-12-18 12:41 ` Opensource [Adam Thomson]
0 siblings, 0 replies; 31+ messages in thread
From: Adam Thomson @ 2017-12-18 12:41 UTC (permalink / raw)
To: Heikki Krogerus, Guenter Roeck, Greg Kroah-Hartman,
Sebastian Reichel, Hans de Goede, Yueyao Zhu, Rui Miguel Silva
Cc: linux-usb, linux-pm, linux-kernel, support.opensource
This commit adds a header providing definitions for handling Alert
messages. Currently the header only focuses on handling incoming
alerts.
Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
---
include/linux/usb/pd_ado.h | 42 ++++++++++++++++++++++++++++++++++++++++++
1 file changed, 42 insertions(+)
create mode 100644 include/linux/usb/pd_ado.h
diff --git a/include/linux/usb/pd_ado.h b/include/linux/usb/pd_ado.h
new file mode 100644
index 0000000..9aa1cf3
--- /dev/null
+++ b/include/linux/usb/pd_ado.h
@@ -0,0 +1,42 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (c) 2017 Dialog Semiconductor
+ *
+ * Author: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
+ */
+
+#ifndef __LINUX_USB_PD_ADO_H
+#define __LINUX_USB_PD_ADO_H
+
+/* ADO : Alert Data Object */
+#define USB_PD_ADO_TYPE_SHIFT 24
+#define USB_PD_ADO_TYPE_MASK 0xff
+#define USB_PD_ADO_FIXED_BATT_SHIFT 20
+#define USB_PD_ADO_FIXED_BATT_MASK 0xf
+#define USB_PD_ADO_HOT_SWAP_BATT_SHIFT 16
+#define USB_PD_ADO_HOT_SWAP_BATT_MASK 0xf
+
+#define USB_PD_ADO_TYPE_BATT_STATUS_CHANGE BIT(1)
+#define USB_PD_ADO_TYPE_OCP BIT(2)
+#define USB_PD_ADO_TYPE_OTP BIT(3)
+#define USB_PD_ADO_TYPE_OP_COND_CHANGE BIT(4)
+#define USB_PD_ADO_TYPE_SRC_INPUT_CHANGE BIT(5)
+#define USB_PD_ADO_TYPE_OVP BIT(6)
+
+static inline unsigned int usb_pd_ado_type(u32 ado)
+{
+ return (ado >> USB_PD_ADO_TYPE_SHIFT) & USB_PD_ADO_TYPE_MASK;
+}
+
+static inline unsigned int usb_pd_ado_fixed_batt(u32 ado)
+{
+ return (ado >> USB_PD_ADO_FIXED_BATT_SHIFT) &
+ USB_PD_ADO_FIXED_BATT_MASK;
+}
+
+static inline unsigned int usb_pd_ado_hot_swap_batt(u32 ado)
+{
+ return (ado >> USB_PD_ADO_HOT_SWAP_BATT_SHIFT) &
+ USB_PD_ADO_HOT_SWAP_BATT_MASK;
+}
+#endif /* __LINUX_USB_PD_ADO_H */
--
1.9.1
^ permalink raw reply related [flat|nested] 31+ messages in thread
* [PATCH v3 3/7] typec: tcpm: Add SDB header for Status message handling
@ 2017-12-18 12:41 ` Opensource [Adam Thomson]
0 siblings, 0 replies; 31+ messages in thread
From: Adam Thomson @ 2017-12-18 12:41 UTC (permalink / raw)
To: Heikki Krogerus, Guenter Roeck, Greg Kroah-Hartman,
Sebastian Reichel, Hans de Goede, Yueyao Zhu, Rui Miguel Silva
Cc: linux-usb, linux-pm, linux-kernel, support.opensource
This commit adds a header providing definitions for handling
Status messages. Currently the header only focuses on handling
incoming Status messages.
Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
---
include/linux/usb/pd_ext_sdb.h | 31 +++++++++++++++++++++++++++++++
1 file changed, 31 insertions(+)
create mode 100644 include/linux/usb/pd_ext_sdb.h
diff --git a/include/linux/usb/pd_ext_sdb.h b/include/linux/usb/pd_ext_sdb.h
new file mode 100644
index 0000000..0eb83ce
--- /dev/null
+++ b/include/linux/usb/pd_ext_sdb.h
@@ -0,0 +1,31 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (c) 2017 Dialog Semiconductor
+ *
+ * Author: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
+ */
+
+#ifndef __LINUX_USB_PD_EXT_SDB_H
+#define __LINUX_USB_PD_EXT_SDB_H
+
+/* SDB : Status Data Block */
+enum usb_pd_ext_sdb_fields {
+ USB_PD_EXT_SDB_INTERNAL_TEMP = 0,
+ USB_PD_EXT_SDB_PRESENT_INPUT,
+ USB_PD_EXT_SDB_PRESENT_BATT_INPUT,
+ USB_PD_EXT_SDB_EVENT_FLAGS,
+ USB_PD_EXT_SDB_TEMP_STATUS,
+ USB_PD_EXT_SDB_DATA_SIZE,
+};
+
+/* Event Flags */
+#define USB_PD_EXT_SDB_EVENT_OCP BIT(1)
+#define USB_PD_EXT_SDB_EVENT_OTP BIT(2)
+#define USB_PD_EXT_SDB_EVENT_OVP BIT(3)
+#define USB_PD_EXT_SDB_EVENT_CF_CV_MODE BIT(4)
+
+#define USB_PD_EXT_SDB_PPS_EVENTS (USB_PD_EXT_SDB_EVENT_OCP | \
+ USB_PD_EXT_SDB_EVENT_OTP | \
+ USB_PD_EXT_SDB_EVENT_OVP)
+
+#endif /* __LINUX_USB_PD_EXT_SDB_H */
--
1.9.1
^ permalink raw reply related [flat|nested] 31+ messages in thread
* [v3,3/7] typec: tcpm: Add SDB header for Status message handling
@ 2017-12-18 12:41 ` Opensource [Adam Thomson]
0 siblings, 0 replies; 31+ messages in thread
From: Opensource [Adam Thomson] @ 2017-12-18 12:41 UTC (permalink / raw)
To: Heikki Krogerus, Guenter Roeck, Greg Kroah-Hartman,
Sebastian Reichel, Hans de Goede, Yueyao Zhu, Rui Miguel Silva
Cc: linux-usb, linux-pm, linux-kernel, support.opensource
This commit adds a header providing definitions for handling
Status messages. Currently the header only focuses on handling
incoming Status messages.
Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
---
include/linux/usb/pd_ext_sdb.h | 31 +++++++++++++++++++++++++++++++
1 file changed, 31 insertions(+)
create mode 100644 include/linux/usb/pd_ext_sdb.h
diff --git a/include/linux/usb/pd_ext_sdb.h b/include/linux/usb/pd_ext_sdb.h
new file mode 100644
index 0000000..0eb83ce
--- /dev/null
+++ b/include/linux/usb/pd_ext_sdb.h
@@ -0,0 +1,31 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (c) 2017 Dialog Semiconductor
+ *
+ * Author: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
+ */
+
+#ifndef __LINUX_USB_PD_EXT_SDB_H
+#define __LINUX_USB_PD_EXT_SDB_H
+
+/* SDB : Status Data Block */
+enum usb_pd_ext_sdb_fields {
+ USB_PD_EXT_SDB_INTERNAL_TEMP = 0,
+ USB_PD_EXT_SDB_PRESENT_INPUT,
+ USB_PD_EXT_SDB_PRESENT_BATT_INPUT,
+ USB_PD_EXT_SDB_EVENT_FLAGS,
+ USB_PD_EXT_SDB_TEMP_STATUS,
+ USB_PD_EXT_SDB_DATA_SIZE,
+};
+
+/* Event Flags */
+#define USB_PD_EXT_SDB_EVENT_OCP BIT(1)
+#define USB_PD_EXT_SDB_EVENT_OTP BIT(2)
+#define USB_PD_EXT_SDB_EVENT_OVP BIT(3)
+#define USB_PD_EXT_SDB_EVENT_CF_CV_MODE BIT(4)
+
+#define USB_PD_EXT_SDB_PPS_EVENTS (USB_PD_EXT_SDB_EVENT_OCP | \
+ USB_PD_EXT_SDB_EVENT_OTP | \
+ USB_PD_EXT_SDB_EVENT_OVP)
+
+#endif /* __LINUX_USB_PD_EXT_SDB_H */
^ permalink raw reply related [flat|nested] 31+ messages in thread
* [PATCH v3 3/7] typec: tcpm: Add SDB header for Status message handling
@ 2017-12-18 12:41 ` Opensource [Adam Thomson]
0 siblings, 0 replies; 31+ messages in thread
From: Adam Thomson @ 2017-12-18 12:41 UTC (permalink / raw)
To: Heikki Krogerus, Guenter Roeck, Greg Kroah-Hartman,
Sebastian Reichel, Hans de Goede, Yueyao Zhu, Rui Miguel Silva
Cc: linux-usb, linux-pm, linux-kernel, support.opensource
This commit adds a header providing definitions for handling
Status messages. Currently the header only focuses on handling
incoming Status messages.
Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
---
include/linux/usb/pd_ext_sdb.h | 31 +++++++++++++++++++++++++++++++
1 file changed, 31 insertions(+)
create mode 100644 include/linux/usb/pd_ext_sdb.h
diff --git a/include/linux/usb/pd_ext_sdb.h b/include/linux/usb/pd_ext_sdb.h
new file mode 100644
index 0000000..0eb83ce
--- /dev/null
+++ b/include/linux/usb/pd_ext_sdb.h
@@ -0,0 +1,31 @@
+// SPDX-License-Identifier: GPL-2.0+
+/*
+ * Copyright (c) 2017 Dialog Semiconductor
+ *
+ * Author: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
+ */
+
+#ifndef __LINUX_USB_PD_EXT_SDB_H
+#define __LINUX_USB_PD_EXT_SDB_H
+
+/* SDB : Status Data Block */
+enum usb_pd_ext_sdb_fields {
+ USB_PD_EXT_SDB_INTERNAL_TEMP = 0,
+ USB_PD_EXT_SDB_PRESENT_INPUT,
+ USB_PD_EXT_SDB_PRESENT_BATT_INPUT,
+ USB_PD_EXT_SDB_EVENT_FLAGS,
+ USB_PD_EXT_SDB_TEMP_STATUS,
+ USB_PD_EXT_SDB_DATA_SIZE,
+};
+
+/* Event Flags */
+#define USB_PD_EXT_SDB_EVENT_OCP BIT(1)
+#define USB_PD_EXT_SDB_EVENT_OTP BIT(2)
+#define USB_PD_EXT_SDB_EVENT_OVP BIT(3)
+#define USB_PD_EXT_SDB_EVENT_CF_CV_MODE BIT(4)
+
+#define USB_PD_EXT_SDB_PPS_EVENTS (USB_PD_EXT_SDB_EVENT_OCP | \
+ USB_PD_EXT_SDB_EVENT_OTP | \
+ USB_PD_EXT_SDB_EVENT_OVP)
+
+#endif /* __LINUX_USB_PD_EXT_SDB_H */
--
1.9.1
^ permalink raw reply related [flat|nested] 31+ messages in thread
* [PATCH v3 4/7] typec: tcpm: Add core support for sink side PPS
@ 2017-12-18 12:41 ` Opensource [Adam Thomson]
0 siblings, 0 replies; 31+ messages in thread
From: Adam Thomson @ 2017-12-18 12:41 UTC (permalink / raw)
To: Heikki Krogerus, Guenter Roeck, Greg Kroah-Hartman,
Sebastian Reichel, Hans de Goede, Yueyao Zhu, Rui Miguel Silva
Cc: linux-usb, linux-pm, linux-kernel, support.opensource
This commit adds code to handle requesting of PPS APDOs. Switching
between standard PDOs and APDOs, and re-requesting an APDO to
modify operating voltage/current will be triggered by an
external call into TCPM.
Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
---
drivers/usb/typec/tcpm.c | 533 ++++++++++++++++++++++++++++++++++++++++++++++-
include/linux/usb/tcpm.h | 2 +-
2 files changed, 523 insertions(+), 12 deletions(-)
diff --git a/drivers/usb/typec/tcpm.c b/drivers/usb/typec/tcpm.c
index f4d563e..b66d26c 100644
--- a/drivers/usb/typec/tcpm.c
+++ b/drivers/usb/typec/tcpm.c
@@ -47,6 +47,7 @@
S(SNK_DISCOVERY_DEBOUNCE_DONE), \
S(SNK_WAIT_CAPABILITIES), \
S(SNK_NEGOTIATE_CAPABILITIES), \
+ S(SNK_NEGOTIATE_PPS_CAPABILITIES), \
S(SNK_TRANSITION_SINK), \
S(SNK_TRANSITION_SINK_VBUS), \
S(SNK_READY), \
@@ -166,6 +167,16 @@ struct pd_mode_data {
struct typec_altmode_desc altmode_desc[SVID_DISCOVERY_MAX];
};
+struct pd_pps_data {
+ u32 min_volt;
+ u32 max_volt;
+ u32 max_curr;
+ u32 out_volt;
+ u32 op_curr;
+ bool supported;
+ bool active;
+};
+
struct tcpm_port {
struct device *dev;
@@ -233,6 +244,7 @@ struct tcpm_port {
struct completion swap_complete;
int swap_status;
+ unsigned int negotiated_rev;
unsigned int message_id;
unsigned int caps_count;
unsigned int hard_reset_count;
@@ -255,6 +267,7 @@ struct tcpm_port {
unsigned int nr_fixed; /* number of fixed sink PDOs */
unsigned int nr_var; /* number of variable sink PDOs */
unsigned int nr_batt; /* number of battery sink PDOs */
+ unsigned int nr_apdo; /* number of APDO type PDOs */
u32 snk_vdo[VDO_MAX_OBJECTS];
unsigned int nr_snk_vdo;
@@ -262,6 +275,7 @@ struct tcpm_port {
unsigned int max_snk_ma;
unsigned int max_snk_mw;
unsigned int operating_snk_mw;
+ bool update_sink_caps;
/* Requested current / voltage */
u32 current_limit;
@@ -278,8 +292,13 @@ struct tcpm_port {
/* VDO to retry if UFP responder replied busy */
u32 vdo_retry;
- /* Alternate mode data */
+ /* PPS */
+ struct pd_pps_data pps_data;
+ struct completion pps_complete;
+ bool pps_pending;
+ int pps_status;
+ /* Alternate mode data */
struct pd_mode_data mode_data;
struct typec_altmode *partner_altmode[SVID_DISCOVERY_MAX];
struct typec_altmode *port_altmode[SVID_DISCOVERY_MAX];
@@ -497,6 +516,16 @@ static void tcpm_log_source_caps(struct tcpm_port *port)
pdo_max_voltage(pdo),
pdo_max_power(pdo));
break;
+ case PDO_TYPE_APDO:
+ if (pdo_apdo_type(pdo) == APDO_TYPE_PPS)
+ scnprintf(msg, sizeof(msg),
+ "%u-%u mV, %u mA",
+ pdo_pps_apdo_min_voltage(pdo),
+ pdo_pps_apdo_max_voltage(pdo),
+ pdo_pps_apdo_max_current(pdo));
+ else
+ strcpy(msg, "undefined APDO");
+ break;
default:
strcpy(msg, "undefined");
break;
@@ -791,11 +820,13 @@ static int tcpm_pd_send_source_caps(struct tcpm_port *port)
msg.header = PD_HEADER_LE(PD_CTRL_REJECT,
port->pwr_role,
port->data_role,
+ port->negotiated_rev,
port->message_id, 0);
} else {
msg.header = PD_HEADER_LE(PD_DATA_SOURCE_CAP,
port->pwr_role,
port->data_role,
+ port->negotiated_rev,
port->message_id,
port->nr_src_pdo);
}
@@ -816,11 +847,13 @@ static int tcpm_pd_send_sink_caps(struct tcpm_port *port)
msg.header = PD_HEADER_LE(PD_CTRL_REJECT,
port->pwr_role,
port->data_role,
+ port->negotiated_rev,
port->message_id, 0);
} else {
msg.header = PD_HEADER_LE(PD_DATA_SINK_CAP,
port->pwr_role,
port->data_role,
+ port->negotiated_rev,
port->message_id,
port->nr_snk_pdo);
}
@@ -1187,6 +1220,7 @@ static void vdm_run_state_machine(struct tcpm_port *port)
msg.header = PD_HEADER_LE(PD_DATA_VENDOR_DEF,
port->pwr_role,
port->data_role,
+ port->negotiated_rev,
port->message_id, port->vdo_count);
for (i = 0; i < port->vdo_count; i++)
msg.payload[i] = cpu_to_le32(port->vdo_data[i]);
@@ -1258,6 +1292,8 @@ enum pdo_err {
PDO_ERR_FIXED_NOT_SORTED,
PDO_ERR_VARIABLE_BATT_NOT_SORTED,
PDO_ERR_DUPE_PDO,
+ PDO_ERR_PPS_APDO_NOT_SORTED,
+ PDO_ERR_DUPE_PPS_APDO,
};
static const char * const pdo_err_msg[] = {
@@ -1273,6 +1309,10 @@ enum pdo_err {
" err: Variable/Battery supply pdos should be in increasing order of their minimum voltage",
[PDO_ERR_DUPE_PDO] =
" err: Variable/Batt supply pdos cannot have same min/max voltage",
+ [PDO_ERR_PPS_APDO_NOT_SORTED] =
+ " err: Programmable power supply apdos should be in increasing order of their maximum voltage",
+ [PDO_ERR_DUPE_PPS_APDO] =
+ " err: Programmable power supply apdos cannot have same min/max voltage and max current",
};
static enum pdo_err tcpm_caps_err(struct tcpm_port *port, const u32 *pdo,
@@ -1322,6 +1362,26 @@ static enum pdo_err tcpm_caps_err(struct tcpm_port *port, const u32 *pdo,
pdo_min_voltage(pdo[i - 1])))
return PDO_ERR_DUPE_PDO;
break;
+ /*
+ * The Programmable Power Supply APDOs, if present,
+ * shall be sent in Maximum Voltage order;
+ * lowest to highest.
+ */
+ case PDO_TYPE_APDO:
+ if (pdo_apdo_type(pdo[i]) != APDO_TYPE_PPS)
+ break;
+
+ if (pdo_pps_apdo_max_current(pdo[i]) <
+ pdo_pps_apdo_max_current(pdo[i - 1]))
+ return PDO_ERR_PPS_APDO_NOT_SORTED;
+ else if ((pdo_pps_apdo_min_voltage(pdo[i]) ==
+ pdo_pps_apdo_min_voltage(pdo[i - 1])) &&
+ (pdo_pps_apdo_max_voltage(pdo[i]) ==
+ pdo_pps_apdo_max_voltage(pdo[i - 1])) &&
+ (pdo_pps_apdo_max_current(pdo[i]) ==
+ pdo_pps_apdo_max_current(pdo[i - 1])))
+ return PDO_ERR_DUPE_PPS_APDO;
+ break;
default:
tcpm_log_force(port, " Unknown pdo type");
}
@@ -1347,11 +1407,16 @@ static int tcpm_validate_caps(struct tcpm_port *port, const u32 *pdo,
/*
* PD (data, control) command handling functions
*/
+
+static int tcpm_pd_send_control(struct tcpm_port *port,
+ enum pd_ctrl_msg_type type);
+
static void tcpm_pd_data_request(struct tcpm_port *port,
const struct pd_message *msg)
{
enum pd_data_msg_type type = pd_header_type_le(msg->header);
unsigned int cnt = pd_header_cnt_le(msg->header);
+ unsigned int rev = pd_header_rev_le(msg->header);
unsigned int i;
switch (type) {
@@ -1370,6 +1435,16 @@ static void tcpm_pd_data_request(struct tcpm_port *port,
port->nr_source_caps);
/*
+ * Adjust revision in subsequent message headers, as required,
+ * to comply with 6.2.1.1.5 of the USB PD 3.0 spec. We don't
+ * support Rev 1.0 so just do nothing in that scenario.
+ */
+ if (rev == PD_REV10)
+ break;
+ else if (rev < PD_MAX_REV)
+ port->negotiated_rev = rev;
+
+ /*
* This message may be received even if VBUS is not
* present. This is quite unexpected; see USB PD
* specification, sections 8.3.3.6.3.1 and 8.3.3.6.3.2.
@@ -1390,6 +1465,19 @@ static void tcpm_pd_data_request(struct tcpm_port *port,
tcpm_queue_message(port, PD_MSG_CTRL_REJECT);
break;
}
+
+ /*
+ * Adjust revision in subsequent message headers, as required,
+ * to comply with 6.2.1.1.5 of the USB PD 3.0 spec. We don't
+ * support Rev 1.0 so just reject in that scenario.
+ */
+ if (rev == PD_REV10) {
+ tcpm_queue_message(port, PD_MSG_CTRL_REJECT);
+ break;
+ } else if (rev < PD_MAX_REV) {
+ port->negotiated_rev = rev;
+ }
+
port->sink_request = le32_to_cpu(msg->payload[0]);
tcpm_set_state(port, SRC_NEGOTIATE_CAPABILITIES, 0);
break;
@@ -1414,6 +1502,15 @@ static void tcpm_pd_data_request(struct tcpm_port *port,
}
}
+static void tcpm_pps_complete(struct tcpm_port *port, int result)
+{
+ if (port->pps_pending) {
+ port->pps_status = result;
+ port->pps_pending = false;
+ complete(&port->pps_complete);
+ }
+}
+
static void tcpm_pd_ctrl_request(struct tcpm_port *port,
const struct pd_message *msg)
{
@@ -1490,6 +1587,14 @@ static void tcpm_pd_ctrl_request(struct tcpm_port *port,
next_state = SNK_WAIT_CAPABILITIES;
tcpm_set_state(port, next_state, 0);
break;
+ case SNK_NEGOTIATE_PPS_CAPABILITIES:
+ /* Revert data back from any requested PPS updates */
+ port->pps_data.out_volt = port->supply_voltage;
+ port->pps_data.op_curr = port->current_limit;
+ port->pps_status = (type == PD_CTRL_WAIT ?
+ -EAGAIN : -EOPNOTSUPP);
+ tcpm_set_state(port, SNK_READY, 0);
+ break;
case DR_SWAP_SEND:
port->swap_status = (type == PD_CTRL_WAIT ?
-EAGAIN : -EOPNOTSUPP);
@@ -1512,6 +1617,13 @@ static void tcpm_pd_ctrl_request(struct tcpm_port *port,
case PD_CTRL_ACCEPT:
switch (port->state) {
case SNK_NEGOTIATE_CAPABILITIES:
+ port->pps_data.active = false;
+ tcpm_set_state(port, SNK_TRANSITION_SINK, 0);
+ break;
+ case SNK_NEGOTIATE_PPS_CAPABILITIES:
+ port->pps_data.active = true;
+ port->supply_voltage = port->pps_data.out_volt;
+ port->current_limit = port->pps_data.op_curr;
tcpm_set_state(port, SNK_TRANSITION_SINK, 0);
break;
case SOFT_RESET_SEND:
@@ -1666,6 +1778,7 @@ static int tcpm_pd_send_control(struct tcpm_port *port,
memset(&msg, 0, sizeof(msg));
msg.header = PD_HEADER_LE(type, port->pwr_role,
port->data_role,
+ port->negotiated_rev,
port->message_id, 0);
return tcpm_pd_transmit(port, TCPC_TX_SOP, &msg);
@@ -1779,6 +1892,8 @@ static int tcpm_pd_select_pdo(struct tcpm_port *port, int *sink_pdo,
unsigned int i, j, max_mw = 0, max_mv = 0, mw = 0, mv = 0, ma = 0;
int ret = -EINVAL;
+ port->pps_data.supported = false;
+
/*
* Select the source PDO providing the most power which has a
* matchig sink cap.
@@ -1787,7 +1902,8 @@ static int tcpm_pd_select_pdo(struct tcpm_port *port, int *sink_pdo,
u32 pdo = port->source_caps[i];
enum pd_pdo_type type = pdo_type(pdo);
- if (type == PDO_TYPE_FIXED) {
+ switch (type) {
+ case PDO_TYPE_FIXED:
for (j = 0; j < port->nr_fixed; j++) {
if (pdo_fixed_voltage(pdo) ==
pdo_fixed_voltage(port->snk_pdo[j])) {
@@ -1809,7 +1925,8 @@ static int tcpm_pd_select_pdo(struct tcpm_port *port, int *sink_pdo,
break;
}
}
- } else if (type == PDO_TYPE_BATT) {
+ break;
+ case PDO_TYPE_BATT:
for (j = port->nr_fixed;
j < port->nr_fixed +
port->nr_batt;
@@ -1830,7 +1947,8 @@ static int tcpm_pd_select_pdo(struct tcpm_port *port, int *sink_pdo,
}
}
}
- } else if (type == PDO_TYPE_VAR) {
+ break;
+ case PDO_TYPE_VAR:
for (j = port->nr_fixed +
port->nr_batt;
j < port->nr_fixed +
@@ -1854,12 +1972,98 @@ static int tcpm_pd_select_pdo(struct tcpm_port *port, int *sink_pdo,
}
}
}
+ break;
+ case PDO_TYPE_APDO:
+ if (pdo_apdo_type(pdo) == APDO_TYPE_PPS)
+ port->pps_data.supported = true;
+ continue;
+ default:
+ tcpm_log(port, "Invalid PDO type, ignoring");
+ continue;
}
}
return ret;
}
+#define min_pps_apdo_current(x, y) \
+ min(pdo_pps_apdo_max_current(x), pdo_pps_apdo_max_current(y))
+
+static unsigned int tcpm_pd_select_pps_apdo(struct tcpm_port *port,
+ int *snk_pdo, int *src_pdo)
+{
+ unsigned int i, j, max_mw = 0, max_mv = 0, mw = 0, mv = 0, ma = 0;
+ enum pd_pdo_type type;
+ u32 pdo;
+ int ret = -EOPNOTSUPP;
+
+ /*
+ * Select the source PPS APDO providing the most power while staying
+ * within the board's limits. We skip the first PDO as this is always
+ * 5V 3A.
+ */
+ *src_pdo = 0;
+ for (i = 1; i < port->nr_source_caps; ++i) {
+ pdo = port->source_caps[i];
+ type = pdo_type(pdo);
+
+ switch (type) {
+ case PDO_TYPE_APDO:
+ if (pdo_apdo_type(pdo) != APDO_TYPE_PPS) {
+ tcpm_log(port, "Not PPS APDO, ignoring");
+ continue;
+ }
+
+ for (j = port->nr_fixed +
+ port->nr_batt +
+ port->nr_var;
+ j < port->nr_fixed +
+ port->nr_batt +
+ port->nr_var +
+ port->nr_apdo;
+ ++j) {
+ if ((pdo_pps_apdo_min_voltage(pdo) >=
+ pdo_pps_apdo_min_voltage(port->snk_pdo[j])) &&
+ (pdo_pps_apdo_max_voltage(pdo) <=
+ pdo_pps_apdo_max_voltage(port->snk_pdo[j]))) {
+ ma = min_pps_apdo_current(pdo,
+ port->snk_pdo[j]);
+ mv = pdo_pps_apdo_max_voltage(pdo);
+ mw = (ma * mv) / 1000;
+ if ((mw > max_mw) ||
+ ((mw == max_mw) && (mv > max_mv))) {
+ ret = 0;
+ *src_pdo = i;
+ *snk_pdo = j;
+ max_mw = mw;
+ max_mv = mv;
+ }
+ }
+ }
+
+ break;
+ default:
+ tcpm_log(port, "Not APDO type, ignoring");
+ continue;
+ }
+ }
+
+ if (*src_pdo > 0) {
+ pdo = port->source_caps[*src_pdo];
+
+ port->pps_data.min_volt = pdo_pps_apdo_min_voltage(pdo);
+ port->pps_data.max_volt = pdo_pps_apdo_max_voltage(pdo);
+ port->pps_data.max_curr =
+ min_pps_apdo_current(pdo, port->snk_pdo[*snk_pdo]);
+ port->pps_data.out_volt =
+ min(port->pps_data.out_volt, pdo_pps_apdo_max_voltage(pdo));
+ port->pps_data.op_curr =
+ min(port->pps_data.op_curr, pdo_pps_apdo_max_current(pdo));
+ }
+
+ return ret;
+}
+
static int tcpm_pd_build_request(struct tcpm_port *port, u32 *rdo)
{
unsigned int mv, ma, mw, flags;
@@ -1875,10 +2079,18 @@ static int tcpm_pd_build_request(struct tcpm_port *port, u32 *rdo)
matching_snk_pdo = port->snk_pdo[snk_pdo_index];
type = pdo_type(pdo);
- if (type == PDO_TYPE_FIXED)
+ switch (type) {
+ case PDO_TYPE_FIXED:
mv = pdo_fixed_voltage(pdo);
- else
+ break;
+ case PDO_TYPE_BATT:
+ case PDO_TYPE_VAR:
mv = pdo_min_voltage(pdo);
+ break;
+ default:
+ tcpm_log(port, "Invalid PDO selected!");
+ return -EINVAL;
+ }
/* Select maximum available current within the sink pdo's limit */
if (type == PDO_TYPE_BATT) {
@@ -1943,6 +2155,107 @@ static int tcpm_pd_send_request(struct tcpm_port *port)
msg.header = PD_HEADER_LE(PD_DATA_REQUEST,
port->pwr_role,
port->data_role,
+ port->negotiated_rev,
+ port->message_id, 1);
+ msg.payload[0] = cpu_to_le32(rdo);
+
+ return tcpm_pd_transmit(port, TCPC_TX_SOP, &msg);
+}
+
+static int tcpm_pd_build_pps_request(struct tcpm_port *port, u32 *rdo)
+{
+ unsigned int out_mv, op_ma, op_mw, min_mv, max_mv, max_ma, flags;
+ enum pd_pdo_type type;
+ int src_pdo_index, snk_pdo_index;
+ u32 pdo, matching_snk_pdo;
+ int ret;
+
+ ret = tcpm_pd_select_pps_apdo(port, &snk_pdo_index, &src_pdo_index);
+ if (ret)
+ return ret;
+
+ pdo = port->source_caps[src_pdo_index];
+ matching_snk_pdo = port->snk_pdo[snk_pdo_index];
+ type = pdo_type(pdo);
+
+ switch (type) {
+ case PDO_TYPE_APDO:
+ if (pdo_apdo_type(pdo) != APDO_TYPE_PPS) {
+ tcpm_log(port, "Invalid APDO selected!");
+ return -EINVAL;
+ }
+ min_mv = pdo_pps_apdo_min_voltage(pdo);
+ max_mv = pdo_pps_apdo_max_voltage(pdo);
+ max_ma = pdo_pps_apdo_max_current(pdo);
+ out_mv = port->pps_data.out_volt;
+ op_ma = port->pps_data.op_curr;
+ break;
+ default:
+ tcpm_log(port, "Invalid PDO selected!");
+ return -EINVAL;
+ }
+
+ flags = RDO_USB_COMM | RDO_NO_SUSPEND;
+
+ op_mw = (op_ma * out_mv) / 1000;
+ if (op_mw < port->operating_snk_mw) {
+ /*
+ * Try raising current to meet power needs. If that's not enough
+ * then try upping the voltage. If that's still not enoguh
+ * then we've obviously chosen a PPS APDO which really isn't
+ * suitable so abandon ship.
+ */
+ op_ma = ((port->operating_snk_mw * 1000) / out_mv);
+ if ((port->operating_snk_mw * 1000) % out_mv)
+ ++op_ma;
+ op_ma += RDO_PROG_CURR_MA_STEP - (op_ma % RDO_PROG_CURR_MA_STEP);
+
+ if (op_ma > max_ma) {
+ op_ma = max_ma;
+ out_mv = ((port->operating_snk_mw * 1000) / op_ma);
+ if ((port->operating_snk_mw * 1000) % op_ma)
+ ++out_mv;
+ out_mv += RDO_PROG_VOLT_MV_STEP -
+ (out_mv % RDO_PROG_VOLT_MV_STEP);
+
+ if (out_mv > max_mv) {
+ tcpm_log(port, "Invalid PPS APDO selected!");
+ return -EINVAL;
+ }
+ }
+ }
+
+ tcpm_log(port, "cc=%d cc1=%d cc2=%d vbus=%d vconn=%s polarity=%d",
+ port->cc_req, port->cc1, port->cc2, port->vbus_source,
+ port->vconn_role == TYPEC_SOURCE ? "source" : "sink",
+ port->polarity);
+
+ *rdo = RDO_PROG(src_pdo_index + 1, out_mv, op_ma, flags);
+
+ tcpm_log(port, "Requesting APDO %d: %u mV, %u mA",
+ src_pdo_index, out_mv, op_ma);
+
+ port->pps_data.op_curr = op_ma;
+ port->pps_data.out_volt = out_mv;
+
+ return 0;
+}
+
+static int tcpm_pd_send_pps_request(struct tcpm_port *port)
+{
+ struct pd_message msg;
+ int ret;
+ u32 rdo;
+
+ ret = tcpm_pd_build_pps_request(port, &rdo);
+ if (ret < 0)
+ return ret;
+
+ memset(&msg, 0, sizeof(msg));
+ msg.header = PD_HEADER_LE(PD_DATA_REQUEST,
+ port->pwr_role,
+ port->data_role,
+ port->negotiated_rev,
port->message_id, 1);
msg.payload[0] = cpu_to_le32(rdo);
@@ -2128,6 +2441,7 @@ static void tcpm_reset_port(struct tcpm_port *port)
tcpm_typec_disconnect(port);
port->attached = false;
port->pd_capable = false;
+ port->pps_data.supported = false;
/*
* First Rx ID should be 0; set this to a sentinel of -1 so that
@@ -2143,6 +2457,8 @@ static void tcpm_reset_port(struct tcpm_port *port)
tcpm_set_attached_state(port, false);
port->try_src_count = 0;
port->try_snk_count = 0;
+ port->supply_voltage = 0;
+ port->current_limit = 0;
}
static void tcpm_detach(struct tcpm_port *port)
@@ -2389,6 +2705,7 @@ static void run_state_machine(struct tcpm_port *port)
typec_set_pwr_opmode(port->typec_port, opmode);
port->pwr_opmode = TYPEC_PWR_MODE_USB;
port->caps_count = 0;
+ port->negotiated_rev = PD_MAX_REV;
port->message_id = 0;
port->rx_msgid = -1;
port->explicit_contract = false;
@@ -2449,6 +2766,7 @@ static void run_state_machine(struct tcpm_port *port)
tcpm_swap_complete(port, 0);
tcpm_typec_connect(port);
+
tcpm_check_send_discover(port);
/*
* 6.3.5
@@ -2472,6 +2790,7 @@ static void run_state_machine(struct tcpm_port *port)
case SNK_UNATTACHED:
if (!port->non_pd_role_swap)
tcpm_swap_complete(port, -ENOTCONN);
+ tcpm_pps_complete(port, -ENOTCONN);
tcpm_snk_detach(port);
if (tcpm_start_drp_toggling(port)) {
tcpm_set_state(port, DRP_TOGGLING, 0);
@@ -2480,6 +2799,7 @@ static void run_state_machine(struct tcpm_port *port)
tcpm_set_cc(port, TYPEC_CC_RD);
if (port->port_type == TYPEC_PORT_DRP)
tcpm_set_state(port, SRC_UNATTACHED, PD_T_DRP_SRC);
+
break;
case SNK_ATTACH_WAIT:
if ((port->cc1 == TYPEC_CC_OPEN &&
@@ -2561,6 +2881,7 @@ static void run_state_machine(struct tcpm_port *port)
port->cc2 : port->cc1);
typec_set_pwr_opmode(port->typec_port, opmode);
port->pwr_opmode = TYPEC_PWR_MODE_USB;
+ port->negotiated_rev = PD_MAX_REV;
port->message_id = 0;
port->rx_msgid = -1;
port->explicit_contract = false;
@@ -2631,6 +2952,24 @@ static void run_state_machine(struct tcpm_port *port)
PD_T_SENDER_RESPONSE);
}
break;
+ case SNK_NEGOTIATE_PPS_CAPABILITIES:
+ ret = tcpm_pd_send_pps_request(port);
+ if (ret < 0) {
+ port->pps_status = ret;
+ /*
+ * If this was called due to updates to sink
+ * capabilities, and pps is no longer valid, we should
+ * safely fall back to a standard PDO.
+ */
+ if (port->update_sink_caps)
+ tcpm_set_state(port, SNK_NEGOTIATE_CAPABILITIES, 0);
+ else
+ tcpm_set_state(port, SNK_READY, 0);
+ } else {
+ tcpm_set_state_cond(port, hard_reset_state(port),
+ PD_T_SENDER_RESPONSE);
+ }
+ break;
case SNK_TRANSITION_SINK:
case SNK_TRANSITION_SINK_VBUS:
tcpm_set_state(port, hard_reset_state(port),
@@ -2638,6 +2977,7 @@ static void run_state_machine(struct tcpm_port *port)
break;
case SNK_READY:
port->try_snk_count = 0;
+ port->update_sink_caps = false;
if (port->explicit_contract) {
typec_set_pwr_opmode(port->typec_port,
TYPEC_PWR_MODE_PD);
@@ -2646,7 +2986,11 @@ static void run_state_machine(struct tcpm_port *port)
tcpm_swap_complete(port, 0);
tcpm_typec_connect(port);
+
tcpm_check_send_discover(port);
+
+ tcpm_pps_complete(port, port->pps_status);
+
break;
/* Accessory states */
@@ -2693,6 +3037,7 @@ static void run_state_machine(struct tcpm_port *port)
tcpm_set_state(port, SRC_UNATTACHED, PD_T_PS_SOURCE_ON);
break;
case SNK_HARD_RESET_SINK_OFF:
+ memset(&port->pps_data, 0, sizeof(port->pps_data));
tcpm_set_vconn(port, false);
tcpm_set_charge(port, false);
tcpm_set_roles(port, false, TYPEC_SINK, TYPEC_DEVICE);
@@ -2913,6 +3258,7 @@ static void run_state_machine(struct tcpm_port *port)
break;
case ERROR_RECOVERY:
tcpm_swap_complete(port, -EPROTO);
+ tcpm_pps_complete(port, -EPROTO);
tcpm_set_state(port, PORT_RESET, 0);
break;
case PORT_RESET:
@@ -3378,7 +3724,7 @@ static int tcpm_dr_set(const struct typec_capability *cap,
mutex_unlock(&port->lock);
if (!wait_for_completion_timeout(&port->swap_complete,
- msecs_to_jiffies(PD_ROLE_SWAP_TIMEOUT)))
+ msecs_to_jiffies(PD_STATE_MACHINE_TIMEOUT)))
ret = -ETIMEDOUT;
else
ret = port->swap_status;
@@ -3423,7 +3769,7 @@ static int tcpm_pr_set(const struct typec_capability *cap,
mutex_unlock(&port->lock);
if (!wait_for_completion_timeout(&port->swap_complete,
- msecs_to_jiffies(PD_ROLE_SWAP_TIMEOUT)))
+ msecs_to_jiffies(PD_STATE_MACHINE_TIMEOUT)))
ret = -ETIMEDOUT;
else
ret = port->swap_status;
@@ -3463,7 +3809,7 @@ static int tcpm_vconn_set(const struct typec_capability *cap,
mutex_unlock(&port->lock);
if (!wait_for_completion_timeout(&port->swap_complete,
- msecs_to_jiffies(PD_ROLE_SWAP_TIMEOUT)))
+ msecs_to_jiffies(PD_STATE_MACHINE_TIMEOUT)))
ret = -ETIMEDOUT;
else
ret = port->swap_status;
@@ -3495,6 +3841,162 @@ static int tcpm_try_role(const struct typec_capability *cap, int role)
return ret;
}
+static int tcpm_pps_set_op_curr(struct tcpm_port *port, u16 op_curr)
+{
+ unsigned int target_mw;
+ int ret = 0;
+
+ mutex_lock(&port->swap_lock);
+ mutex_lock(&port->lock);
+
+ if (!port->pps_data.active) {
+ ret = -EOPNOTSUPP;
+ goto port_unlock;
+ }
+
+ if (port->state != SNK_READY) {
+ ret = -EAGAIN;
+ goto port_unlock;
+ }
+
+ if (op_curr > port->pps_data.max_curr) {
+ ret = -EINVAL;
+ goto port_unlock;
+ }
+
+ target_mw = (op_curr * port->pps_data.out_volt) / 1000;
+ if (target_mw < port->operating_snk_mw) {
+ ret = -EINVAL;
+ goto port_unlock;
+ }
+
+ reinit_completion(&port->pps_complete);
+ port->pps_data.op_curr = op_curr;
+ port->pps_status = 0;
+ port->pps_pending = true;
+ tcpm_set_state(port, SNK_NEGOTIATE_PPS_CAPABILITIES, 0);
+ mutex_unlock(&port->lock);
+
+ if (!wait_for_completion_timeout(&port->pps_complete,
+ msecs_to_jiffies(PD_STATE_MACHINE_TIMEOUT)))
+ ret = -ETIMEDOUT;
+ else
+ ret = port->pps_status;
+
+ goto swap_unlock;
+
+port_unlock:
+ mutex_unlock(&port->lock);
+swap_unlock:
+ mutex_unlock(&port->swap_lock);
+
+ return ret;
+}
+
+static int tcpm_pps_set_out_volt(struct tcpm_port *port, u16 out_volt)
+{
+ unsigned int target_mw;
+ int ret = 0;
+
+ mutex_lock(&port->swap_lock);
+ mutex_lock(&port->lock);
+
+ if (!port->pps_data.active) {
+ ret = -EOPNOTSUPP;
+ goto port_unlock;
+ }
+
+ if (port->state != SNK_READY) {
+ ret = -EAGAIN;
+ goto port_unlock;
+ }
+
+ if ((out_volt < port->pps_data.min_volt) ||
+ (out_volt > port->pps_data.max_volt)) {
+ ret = -EINVAL;
+ goto port_unlock;
+ }
+
+ target_mw = (port->pps_data.op_curr * out_volt) / 1000;
+ if (target_mw < port->operating_snk_mw) {
+ ret = -EINVAL;
+ goto port_unlock;
+ }
+
+ reinit_completion(&port->pps_complete);
+ port->pps_data.out_volt = out_volt;
+ port->pps_status = 0;
+ port->pps_pending = true;
+ tcpm_set_state(port, SNK_NEGOTIATE_PPS_CAPABILITIES, 0);
+ mutex_unlock(&port->lock);
+
+ if (!wait_for_completion_timeout(&port->pps_complete,
+ msecs_to_jiffies(PD_STATE_MACHINE_TIMEOUT)))
+ ret = -ETIMEDOUT;
+ else
+ ret = port->pps_status;
+
+ goto swap_unlock;
+
+port_unlock:
+ mutex_unlock(&port->lock);
+swap_unlock:
+ mutex_unlock(&port->swap_lock);
+
+ return ret;
+}
+
+static int tcpm_pps_activate(struct tcpm_port *port, bool activate)
+{
+ int ret = 0;
+
+ mutex_lock(&port->swap_lock);
+ mutex_lock(&port->lock);
+
+ if (!port->pps_data.supported) {
+ ret = -EOPNOTSUPP;
+ goto port_unlock;
+ }
+
+ /* Trying to deactivate PPS when already deactivated so just bail */
+ if ((!port->pps_data.active) && (!activate))
+ goto port_unlock;
+
+ if (port->state != SNK_READY) {
+ ret = -EAGAIN;
+ goto port_unlock;
+ }
+
+ reinit_completion(&port->pps_complete);
+ port->pps_status = 0;
+ port->pps_pending = true;
+
+ /* Trigger PPS request or move back to standard PDO contract */
+ if (activate) {
+ port->pps_data.out_volt = port->supply_voltage;
+ port->pps_data.op_curr = port->current_limit;
+ tcpm_set_state(port, SNK_NEGOTIATE_PPS_CAPABILITIES, 0);
+ } else {
+ tcpm_set_state(port, SNK_NEGOTIATE_CAPABILITIES, 0);
+ }
+ mutex_unlock(&port->lock);
+
+ if (!wait_for_completion_timeout(&port->pps_complete,
+ msecs_to_jiffies(PD_STATE_MACHINE_TIMEOUT)))
+ ret = -ETIMEDOUT;
+ else
+ ret = port->pps_status;
+
+ goto swap_unlock;
+
+port_unlock:
+ mutex_unlock(&port->lock);
+swap_unlock:
+ mutex_unlock(&port->swap_lock);
+
+ return ret;
+}
+
static void tcpm_init(struct tcpm_port *port)
{
enum typec_cc_status cc1, cc2;
@@ -3634,13 +4136,18 @@ int tcpm_update_sink_capabilities(struct tcpm_port *port, const u32 *pdo,
port->max_snk_ma = max_snk_ma;
port->max_snk_mw = max_snk_mw;
port->operating_snk_mw = operating_snk_mw;
+ port->update_sink_caps = true;
switch (port->state) {
case SNK_NEGOTIATE_CAPABILITIES:
+ case SNK_NEGOTIATE_PPS_CAPABILITIES:
case SNK_READY:
case SNK_TRANSITION_SINK:
case SNK_TRANSITION_SINK_VBUS:
- tcpm_set_state(port, SNK_NEGOTIATE_CAPABILITIES, 0);
+ if (port->pps_data.active)
+ tcpm_set_state(port, SNK_NEGOTIATE_PPS_CAPABILITIES, 0);
+ else
+ tcpm_set_state(port, SNK_NEGOTIATE_CAPABILITIES, 0);
break;
default:
break;
@@ -3695,6 +4202,7 @@ struct tcpm_port *tcpm_register_port(struct device *dev, struct tcpc_dev *tcpc)
init_completion(&port->tx_complete);
init_completion(&port->swap_complete);
+ init_completion(&port->pps_complete);
tcpm_debugfs_init(port);
if (tcpm_validate_caps(port, tcpc->config->src_pdo,
@@ -3717,6 +4225,9 @@ struct tcpm_port *tcpm_register_port(struct device *dev, struct tcpc_dev *tcpc)
port->nr_batt = nr_type_pdos(port->snk_pdo,
port->nr_snk_pdo,
PDO_TYPE_BATT);
+ port->nr_apdo = nr_type_pdos(port->snk_pdo,
+ port->nr_snk_pdo,
+ PDO_TYPE_APDO);
port->nr_snk_vdo = tcpm_copy_vdos(port->snk_vdo, tcpc->config->snk_vdo,
tcpc->config->nr_snk_vdo);
@@ -3732,7 +4243,7 @@ struct tcpm_port *tcpm_register_port(struct device *dev, struct tcpc_dev *tcpc)
port->typec_caps.prefer_role = tcpc->config->default_role;
port->typec_caps.type = tcpc->config->type;
port->typec_caps.revision = 0x0120; /* Type-C spec release 1.2 */
- port->typec_caps.pd_revision = 0x0200; /* USB-PD spec release 2.0 */
+ port->typec_caps.pd_revision = 0x0300; /* USB-PD spec release 3.0 */
port->typec_caps.dr_set = tcpm_dr_set;
port->typec_caps.pr_set = tcpm_pr_set;
port->typec_caps.vconn_set = tcpm_vconn_set;
diff --git a/include/linux/usb/tcpm.h b/include/linux/usb/tcpm.h
index ca1c0b5..d6673f7 100644
--- a/include/linux/usb/tcpm.h
+++ b/include/linux/usb/tcpm.h
@@ -35,7 +35,7 @@ enum typec_cc_polarity {
/* Time to wait for TCPC to complete transmit */
#define PD_T_TCPC_TX_TIMEOUT 100 /* in ms */
-#define PD_ROLE_SWAP_TIMEOUT (MSEC_PER_SEC * 10)
+#define PD_STATE_MACHINE_TIMEOUT (MSEC_PER_SEC * 10)
enum tcpm_transmit_status {
TCPC_TX_SUCCESS = 0,
--
1.9.1
^ permalink raw reply related [flat|nested] 31+ messages in thread
* [v3,4/7] typec: tcpm: Add core support for sink side PPS
@ 2017-12-18 12:41 ` Opensource [Adam Thomson]
0 siblings, 0 replies; 31+ messages in thread
From: Opensource [Adam Thomson] @ 2017-12-18 12:41 UTC (permalink / raw)
To: Heikki Krogerus, Guenter Roeck, Greg Kroah-Hartman,
Sebastian Reichel, Hans de Goede, Yueyao Zhu, Rui Miguel Silva
Cc: linux-usb, linux-pm, linux-kernel, support.opensource
This commit adds code to handle requesting of PPS APDOs. Switching
between standard PDOs and APDOs, and re-requesting an APDO to
modify operating voltage/current will be triggered by an
external call into TCPM.
Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
---
drivers/usb/typec/tcpm.c | 533 ++++++++++++++++++++++++++++++++++++++++++++++-
include/linux/usb/tcpm.h | 2 +-
2 files changed, 523 insertions(+), 12 deletions(-)
diff --git a/drivers/usb/typec/tcpm.c b/drivers/usb/typec/tcpm.c
index f4d563e..b66d26c 100644
--- a/drivers/usb/typec/tcpm.c
+++ b/drivers/usb/typec/tcpm.c
@@ -47,6 +47,7 @@
S(SNK_DISCOVERY_DEBOUNCE_DONE), \
S(SNK_WAIT_CAPABILITIES), \
S(SNK_NEGOTIATE_CAPABILITIES), \
+ S(SNK_NEGOTIATE_PPS_CAPABILITIES), \
S(SNK_TRANSITION_SINK), \
S(SNK_TRANSITION_SINK_VBUS), \
S(SNK_READY), \
@@ -166,6 +167,16 @@ struct pd_mode_data {
struct typec_altmode_desc altmode_desc[SVID_DISCOVERY_MAX];
};
+struct pd_pps_data {
+ u32 min_volt;
+ u32 max_volt;
+ u32 max_curr;
+ u32 out_volt;
+ u32 op_curr;
+ bool supported;
+ bool active;
+};
+
struct tcpm_port {
struct device *dev;
@@ -233,6 +244,7 @@ struct tcpm_port {
struct completion swap_complete;
int swap_status;
+ unsigned int negotiated_rev;
unsigned int message_id;
unsigned int caps_count;
unsigned int hard_reset_count;
@@ -255,6 +267,7 @@ struct tcpm_port {
unsigned int nr_fixed; /* number of fixed sink PDOs */
unsigned int nr_var; /* number of variable sink PDOs */
unsigned int nr_batt; /* number of battery sink PDOs */
+ unsigned int nr_apdo; /* number of APDO type PDOs */
u32 snk_vdo[VDO_MAX_OBJECTS];
unsigned int nr_snk_vdo;
@@ -262,6 +275,7 @@ struct tcpm_port {
unsigned int max_snk_ma;
unsigned int max_snk_mw;
unsigned int operating_snk_mw;
+ bool update_sink_caps;
/* Requested current / voltage */
u32 current_limit;
@@ -278,8 +292,13 @@ struct tcpm_port {
/* VDO to retry if UFP responder replied busy */
u32 vdo_retry;
- /* Alternate mode data */
+ /* PPS */
+ struct pd_pps_data pps_data;
+ struct completion pps_complete;
+ bool pps_pending;
+ int pps_status;
+ /* Alternate mode data */
struct pd_mode_data mode_data;
struct typec_altmode *partner_altmode[SVID_DISCOVERY_MAX];
struct typec_altmode *port_altmode[SVID_DISCOVERY_MAX];
@@ -497,6 +516,16 @@ static void tcpm_log_source_caps(struct tcpm_port *port)
pdo_max_voltage(pdo),
pdo_max_power(pdo));
break;
+ case PDO_TYPE_APDO:
+ if (pdo_apdo_type(pdo) == APDO_TYPE_PPS)
+ scnprintf(msg, sizeof(msg),
+ "%u-%u mV, %u mA",
+ pdo_pps_apdo_min_voltage(pdo),
+ pdo_pps_apdo_max_voltage(pdo),
+ pdo_pps_apdo_max_current(pdo));
+ else
+ strcpy(msg, "undefined APDO");
+ break;
default:
strcpy(msg, "undefined");
break;
@@ -791,11 +820,13 @@ static int tcpm_pd_send_source_caps(struct tcpm_port *port)
msg.header = PD_HEADER_LE(PD_CTRL_REJECT,
port->pwr_role,
port->data_role,
+ port->negotiated_rev,
port->message_id, 0);
} else {
msg.header = PD_HEADER_LE(PD_DATA_SOURCE_CAP,
port->pwr_role,
port->data_role,
+ port->negotiated_rev,
port->message_id,
port->nr_src_pdo);
}
@@ -816,11 +847,13 @@ static int tcpm_pd_send_sink_caps(struct tcpm_port *port)
msg.header = PD_HEADER_LE(PD_CTRL_REJECT,
port->pwr_role,
port->data_role,
+ port->negotiated_rev,
port->message_id, 0);
} else {
msg.header = PD_HEADER_LE(PD_DATA_SINK_CAP,
port->pwr_role,
port->data_role,
+ port->negotiated_rev,
port->message_id,
port->nr_snk_pdo);
}
@@ -1187,6 +1220,7 @@ static void vdm_run_state_machine(struct tcpm_port *port)
msg.header = PD_HEADER_LE(PD_DATA_VENDOR_DEF,
port->pwr_role,
port->data_role,
+ port->negotiated_rev,
port->message_id, port->vdo_count);
for (i = 0; i < port->vdo_count; i++)
msg.payload[i] = cpu_to_le32(port->vdo_data[i]);
@@ -1258,6 +1292,8 @@ enum pdo_err {
PDO_ERR_FIXED_NOT_SORTED,
PDO_ERR_VARIABLE_BATT_NOT_SORTED,
PDO_ERR_DUPE_PDO,
+ PDO_ERR_PPS_APDO_NOT_SORTED,
+ PDO_ERR_DUPE_PPS_APDO,
};
static const char * const pdo_err_msg[] = {
@@ -1273,6 +1309,10 @@ enum pdo_err {
" err: Variable/Battery supply pdos should be in increasing order of their minimum voltage",
[PDO_ERR_DUPE_PDO] =
" err: Variable/Batt supply pdos cannot have same min/max voltage",
+ [PDO_ERR_PPS_APDO_NOT_SORTED] =
+ " err: Programmable power supply apdos should be in increasing order of their maximum voltage",
+ [PDO_ERR_DUPE_PPS_APDO] =
+ " err: Programmable power supply apdos cannot have same min/max voltage and max current",
};
static enum pdo_err tcpm_caps_err(struct tcpm_port *port, const u32 *pdo,
@@ -1322,6 +1362,26 @@ static enum pdo_err tcpm_caps_err(struct tcpm_port *port, const u32 *pdo,
pdo_min_voltage(pdo[i - 1])))
return PDO_ERR_DUPE_PDO;
break;
+ /*
+ * The Programmable Power Supply APDOs, if present,
+ * shall be sent in Maximum Voltage order;
+ * lowest to highest.
+ */
+ case PDO_TYPE_APDO:
+ if (pdo_apdo_type(pdo[i]) != APDO_TYPE_PPS)
+ break;
+
+ if (pdo_pps_apdo_max_current(pdo[i]) <
+ pdo_pps_apdo_max_current(pdo[i - 1]))
+ return PDO_ERR_PPS_APDO_NOT_SORTED;
+ else if ((pdo_pps_apdo_min_voltage(pdo[i]) ==
+ pdo_pps_apdo_min_voltage(pdo[i - 1])) &&
+ (pdo_pps_apdo_max_voltage(pdo[i]) ==
+ pdo_pps_apdo_max_voltage(pdo[i - 1])) &&
+ (pdo_pps_apdo_max_current(pdo[i]) ==
+ pdo_pps_apdo_max_current(pdo[i - 1])))
+ return PDO_ERR_DUPE_PPS_APDO;
+ break;
default:
tcpm_log_force(port, " Unknown pdo type");
}
@@ -1347,11 +1407,16 @@ static int tcpm_validate_caps(struct tcpm_port *port, const u32 *pdo,
/*
* PD (data, control) command handling functions
*/
+
+static int tcpm_pd_send_control(struct tcpm_port *port,
+ enum pd_ctrl_msg_type type);
+
static void tcpm_pd_data_request(struct tcpm_port *port,
const struct pd_message *msg)
{
enum pd_data_msg_type type = pd_header_type_le(msg->header);
unsigned int cnt = pd_header_cnt_le(msg->header);
+ unsigned int rev = pd_header_rev_le(msg->header);
unsigned int i;
switch (type) {
@@ -1370,6 +1435,16 @@ static void tcpm_pd_data_request(struct tcpm_port *port,
port->nr_source_caps);
/*
+ * Adjust revision in subsequent message headers, as required,
+ * to comply with 6.2.1.1.5 of the USB PD 3.0 spec. We don't
+ * support Rev 1.0 so just do nothing in that scenario.
+ */
+ if (rev == PD_REV10)
+ break;
+ else if (rev < PD_MAX_REV)
+ port->negotiated_rev = rev;
+
+ /*
* This message may be received even if VBUS is not
* present. This is quite unexpected; see USB PD
* specification, sections 8.3.3.6.3.1 and 8.3.3.6.3.2.
@@ -1390,6 +1465,19 @@ static void tcpm_pd_data_request(struct tcpm_port *port,
tcpm_queue_message(port, PD_MSG_CTRL_REJECT);
break;
}
+
+ /*
+ * Adjust revision in subsequent message headers, as required,
+ * to comply with 6.2.1.1.5 of the USB PD 3.0 spec. We don't
+ * support Rev 1.0 so just reject in that scenario.
+ */
+ if (rev == PD_REV10) {
+ tcpm_queue_message(port, PD_MSG_CTRL_REJECT);
+ break;
+ } else if (rev < PD_MAX_REV) {
+ port->negotiated_rev = rev;
+ }
+
port->sink_request = le32_to_cpu(msg->payload[0]);
tcpm_set_state(port, SRC_NEGOTIATE_CAPABILITIES, 0);
break;
@@ -1414,6 +1502,15 @@ static void tcpm_pd_data_request(struct tcpm_port *port,
}
}
+static void tcpm_pps_complete(struct tcpm_port *port, int result)
+{
+ if (port->pps_pending) {
+ port->pps_status = result;
+ port->pps_pending = false;
+ complete(&port->pps_complete);
+ }
+}
+
static void tcpm_pd_ctrl_request(struct tcpm_port *port,
const struct pd_message *msg)
{
@@ -1490,6 +1587,14 @@ static void tcpm_pd_ctrl_request(struct tcpm_port *port,
next_state = SNK_WAIT_CAPABILITIES;
tcpm_set_state(port, next_state, 0);
break;
+ case SNK_NEGOTIATE_PPS_CAPABILITIES:
+ /* Revert data back from any requested PPS updates */
+ port->pps_data.out_volt = port->supply_voltage;
+ port->pps_data.op_curr = port->current_limit;
+ port->pps_status = (type == PD_CTRL_WAIT ?
+ -EAGAIN : -EOPNOTSUPP);
+ tcpm_set_state(port, SNK_READY, 0);
+ break;
case DR_SWAP_SEND:
port->swap_status = (type == PD_CTRL_WAIT ?
-EAGAIN : -EOPNOTSUPP);
@@ -1512,6 +1617,13 @@ static void tcpm_pd_ctrl_request(struct tcpm_port *port,
case PD_CTRL_ACCEPT:
switch (port->state) {
case SNK_NEGOTIATE_CAPABILITIES:
+ port->pps_data.active = false;
+ tcpm_set_state(port, SNK_TRANSITION_SINK, 0);
+ break;
+ case SNK_NEGOTIATE_PPS_CAPABILITIES:
+ port->pps_data.active = true;
+ port->supply_voltage = port->pps_data.out_volt;
+ port->current_limit = port->pps_data.op_curr;
tcpm_set_state(port, SNK_TRANSITION_SINK, 0);
break;
case SOFT_RESET_SEND:
@@ -1666,6 +1778,7 @@ static int tcpm_pd_send_control(struct tcpm_port *port,
memset(&msg, 0, sizeof(msg));
msg.header = PD_HEADER_LE(type, port->pwr_role,
port->data_role,
+ port->negotiated_rev,
port->message_id, 0);
return tcpm_pd_transmit(port, TCPC_TX_SOP, &msg);
@@ -1779,6 +1892,8 @@ static int tcpm_pd_select_pdo(struct tcpm_port *port, int *sink_pdo,
unsigned int i, j, max_mw = 0, max_mv = 0, mw = 0, mv = 0, ma = 0;
int ret = -EINVAL;
+ port->pps_data.supported = false;
+
/*
* Select the source PDO providing the most power which has a
* matchig sink cap.
@@ -1787,7 +1902,8 @@ static int tcpm_pd_select_pdo(struct tcpm_port *port, int *sink_pdo,
u32 pdo = port->source_caps[i];
enum pd_pdo_type type = pdo_type(pdo);
- if (type == PDO_TYPE_FIXED) {
+ switch (type) {
+ case PDO_TYPE_FIXED:
for (j = 0; j < port->nr_fixed; j++) {
if (pdo_fixed_voltage(pdo) ==
pdo_fixed_voltage(port->snk_pdo[j])) {
@@ -1809,7 +1925,8 @@ static int tcpm_pd_select_pdo(struct tcpm_port *port, int *sink_pdo,
break;
}
}
- } else if (type == PDO_TYPE_BATT) {
+ break;
+ case PDO_TYPE_BATT:
for (j = port->nr_fixed;
j < port->nr_fixed +
port->nr_batt;
@@ -1830,7 +1947,8 @@ static int tcpm_pd_select_pdo(struct tcpm_port *port, int *sink_pdo,
}
}
}
- } else if (type == PDO_TYPE_VAR) {
+ break;
+ case PDO_TYPE_VAR:
for (j = port->nr_fixed +
port->nr_batt;
j < port->nr_fixed +
@@ -1854,12 +1972,98 @@ static int tcpm_pd_select_pdo(struct tcpm_port *port, int *sink_pdo,
}
}
}
+ break;
+ case PDO_TYPE_APDO:
+ if (pdo_apdo_type(pdo) == APDO_TYPE_PPS)
+ port->pps_data.supported = true;
+ continue;
+ default:
+ tcpm_log(port, "Invalid PDO type, ignoring");
+ continue;
}
}
return ret;
}
+#define min_pps_apdo_current(x, y) \
+ min(pdo_pps_apdo_max_current(x), pdo_pps_apdo_max_current(y))
+
+static unsigned int tcpm_pd_select_pps_apdo(struct tcpm_port *port,
+ int *snk_pdo, int *src_pdo)
+{
+ unsigned int i, j, max_mw = 0, max_mv = 0, mw = 0, mv = 0, ma = 0;
+ enum pd_pdo_type type;
+ u32 pdo;
+ int ret = -EOPNOTSUPP;
+
+ /*
+ * Select the source PPS APDO providing the most power while staying
+ * within the board's limits. We skip the first PDO as this is always
+ * 5V 3A.
+ */
+ *src_pdo = 0;
+ for (i = 1; i < port->nr_source_caps; ++i) {
+ pdo = port->source_caps[i];
+ type = pdo_type(pdo);
+
+ switch (type) {
+ case PDO_TYPE_APDO:
+ if (pdo_apdo_type(pdo) != APDO_TYPE_PPS) {
+ tcpm_log(port, "Not PPS APDO, ignoring");
+ continue;
+ }
+
+ for (j = port->nr_fixed +
+ port->nr_batt +
+ port->nr_var;
+ j < port->nr_fixed +
+ port->nr_batt +
+ port->nr_var +
+ port->nr_apdo;
+ ++j) {
+ if ((pdo_pps_apdo_min_voltage(pdo) >=
+ pdo_pps_apdo_min_voltage(port->snk_pdo[j])) &&
+ (pdo_pps_apdo_max_voltage(pdo) <=
+ pdo_pps_apdo_max_voltage(port->snk_pdo[j]))) {
+ ma = min_pps_apdo_current(pdo,
+ port->snk_pdo[j]);
+ mv = pdo_pps_apdo_max_voltage(pdo);
+ mw = (ma * mv) / 1000;
+ if ((mw > max_mw) ||
+ ((mw == max_mw) && (mv > max_mv))) {
+ ret = 0;
+ *src_pdo = i;
+ *snk_pdo = j;
+ max_mw = mw;
+ max_mv = mv;
+ }
+ }
+ }
+
+ break;
+ default:
+ tcpm_log(port, "Not APDO type, ignoring");
+ continue;
+ }
+ }
+
+ if (*src_pdo > 0) {
+ pdo = port->source_caps[*src_pdo];
+
+ port->pps_data.min_volt = pdo_pps_apdo_min_voltage(pdo);
+ port->pps_data.max_volt = pdo_pps_apdo_max_voltage(pdo);
+ port->pps_data.max_curr =
+ min_pps_apdo_current(pdo, port->snk_pdo[*snk_pdo]);
+ port->pps_data.out_volt =
+ min(port->pps_data.out_volt, pdo_pps_apdo_max_voltage(pdo));
+ port->pps_data.op_curr =
+ min(port->pps_data.op_curr, pdo_pps_apdo_max_current(pdo));
+ }
+
+ return ret;
+}
+
static int tcpm_pd_build_request(struct tcpm_port *port, u32 *rdo)
{
unsigned int mv, ma, mw, flags;
@@ -1875,10 +2079,18 @@ static int tcpm_pd_build_request(struct tcpm_port *port, u32 *rdo)
matching_snk_pdo = port->snk_pdo[snk_pdo_index];
type = pdo_type(pdo);
- if (type == PDO_TYPE_FIXED)
+ switch (type) {
+ case PDO_TYPE_FIXED:
mv = pdo_fixed_voltage(pdo);
- else
+ break;
+ case PDO_TYPE_BATT:
+ case PDO_TYPE_VAR:
mv = pdo_min_voltage(pdo);
+ break;
+ default:
+ tcpm_log(port, "Invalid PDO selected!");
+ return -EINVAL;
+ }
/* Select maximum available current within the sink pdo's limit */
if (type == PDO_TYPE_BATT) {
@@ -1943,6 +2155,107 @@ static int tcpm_pd_send_request(struct tcpm_port *port)
msg.header = PD_HEADER_LE(PD_DATA_REQUEST,
port->pwr_role,
port->data_role,
+ port->negotiated_rev,
+ port->message_id, 1);
+ msg.payload[0] = cpu_to_le32(rdo);
+
+ return tcpm_pd_transmit(port, TCPC_TX_SOP, &msg);
+}
+
+static int tcpm_pd_build_pps_request(struct tcpm_port *port, u32 *rdo)
+{
+ unsigned int out_mv, op_ma, op_mw, min_mv, max_mv, max_ma, flags;
+ enum pd_pdo_type type;
+ int src_pdo_index, snk_pdo_index;
+ u32 pdo, matching_snk_pdo;
+ int ret;
+
+ ret = tcpm_pd_select_pps_apdo(port, &snk_pdo_index, &src_pdo_index);
+ if (ret)
+ return ret;
+
+ pdo = port->source_caps[src_pdo_index];
+ matching_snk_pdo = port->snk_pdo[snk_pdo_index];
+ type = pdo_type(pdo);
+
+ switch (type) {
+ case PDO_TYPE_APDO:
+ if (pdo_apdo_type(pdo) != APDO_TYPE_PPS) {
+ tcpm_log(port, "Invalid APDO selected!");
+ return -EINVAL;
+ }
+ min_mv = pdo_pps_apdo_min_voltage(pdo);
+ max_mv = pdo_pps_apdo_max_voltage(pdo);
+ max_ma = pdo_pps_apdo_max_current(pdo);
+ out_mv = port->pps_data.out_volt;
+ op_ma = port->pps_data.op_curr;
+ break;
+ default:
+ tcpm_log(port, "Invalid PDO selected!");
+ return -EINVAL;
+ }
+
+ flags = RDO_USB_COMM | RDO_NO_SUSPEND;
+
+ op_mw = (op_ma * out_mv) / 1000;
+ if (op_mw < port->operating_snk_mw) {
+ /*
+ * Try raising current to meet power needs. If that's not enough
+ * then try upping the voltage. If that's still not enoguh
+ * then we've obviously chosen a PPS APDO which really isn't
+ * suitable so abandon ship.
+ */
+ op_ma = ((port->operating_snk_mw * 1000) / out_mv);
+ if ((port->operating_snk_mw * 1000) % out_mv)
+ ++op_ma;
+ op_ma += RDO_PROG_CURR_MA_STEP - (op_ma % RDO_PROG_CURR_MA_STEP);
+
+ if (op_ma > max_ma) {
+ op_ma = max_ma;
+ out_mv = ((port->operating_snk_mw * 1000) / op_ma);
+ if ((port->operating_snk_mw * 1000) % op_ma)
+ ++out_mv;
+ out_mv += RDO_PROG_VOLT_MV_STEP -
+ (out_mv % RDO_PROG_VOLT_MV_STEP);
+
+ if (out_mv > max_mv) {
+ tcpm_log(port, "Invalid PPS APDO selected!");
+ return -EINVAL;
+ }
+ }
+ }
+
+ tcpm_log(port, "cc=%d cc1=%d cc2=%d vbus=%d vconn=%s polarity=%d",
+ port->cc_req, port->cc1, port->cc2, port->vbus_source,
+ port->vconn_role == TYPEC_SOURCE ? "source" : "sink",
+ port->polarity);
+
+ *rdo = RDO_PROG(src_pdo_index + 1, out_mv, op_ma, flags);
+
+ tcpm_log(port, "Requesting APDO %d: %u mV, %u mA",
+ src_pdo_index, out_mv, op_ma);
+
+ port->pps_data.op_curr = op_ma;
+ port->pps_data.out_volt = out_mv;
+
+ return 0;
+}
+
+static int tcpm_pd_send_pps_request(struct tcpm_port *port)
+{
+ struct pd_message msg;
+ int ret;
+ u32 rdo;
+
+ ret = tcpm_pd_build_pps_request(port, &rdo);
+ if (ret < 0)
+ return ret;
+
+ memset(&msg, 0, sizeof(msg));
+ msg.header = PD_HEADER_LE(PD_DATA_REQUEST,
+ port->pwr_role,
+ port->data_role,
+ port->negotiated_rev,
port->message_id, 1);
msg.payload[0] = cpu_to_le32(rdo);
@@ -2128,6 +2441,7 @@ static void tcpm_reset_port(struct tcpm_port *port)
tcpm_typec_disconnect(port);
port->attached = false;
port->pd_capable = false;
+ port->pps_data.supported = false;
/*
* First Rx ID should be 0; set this to a sentinel of -1 so that
@@ -2143,6 +2457,8 @@ static void tcpm_reset_port(struct tcpm_port *port)
tcpm_set_attached_state(port, false);
port->try_src_count = 0;
port->try_snk_count = 0;
+ port->supply_voltage = 0;
+ port->current_limit = 0;
}
static void tcpm_detach(struct tcpm_port *port)
@@ -2389,6 +2705,7 @@ static void run_state_machine(struct tcpm_port *port)
typec_set_pwr_opmode(port->typec_port, opmode);
port->pwr_opmode = TYPEC_PWR_MODE_USB;
port->caps_count = 0;
+ port->negotiated_rev = PD_MAX_REV;
port->message_id = 0;
port->rx_msgid = -1;
port->explicit_contract = false;
@@ -2449,6 +2766,7 @@ static void run_state_machine(struct tcpm_port *port)
tcpm_swap_complete(port, 0);
tcpm_typec_connect(port);
+
tcpm_check_send_discover(port);
/*
* 6.3.5
@@ -2472,6 +2790,7 @@ static void run_state_machine(struct tcpm_port *port)
case SNK_UNATTACHED:
if (!port->non_pd_role_swap)
tcpm_swap_complete(port, -ENOTCONN);
+ tcpm_pps_complete(port, -ENOTCONN);
tcpm_snk_detach(port);
if (tcpm_start_drp_toggling(port)) {
tcpm_set_state(port, DRP_TOGGLING, 0);
@@ -2480,6 +2799,7 @@ static void run_state_machine(struct tcpm_port *port)
tcpm_set_cc(port, TYPEC_CC_RD);
if (port->port_type == TYPEC_PORT_DRP)
tcpm_set_state(port, SRC_UNATTACHED, PD_T_DRP_SRC);
+
break;
case SNK_ATTACH_WAIT:
if ((port->cc1 == TYPEC_CC_OPEN &&
@@ -2561,6 +2881,7 @@ static void run_state_machine(struct tcpm_port *port)
port->cc2 : port->cc1);
typec_set_pwr_opmode(port->typec_port, opmode);
port->pwr_opmode = TYPEC_PWR_MODE_USB;
+ port->negotiated_rev = PD_MAX_REV;
port->message_id = 0;
port->rx_msgid = -1;
port->explicit_contract = false;
@@ -2631,6 +2952,24 @@ static void run_state_machine(struct tcpm_port *port)
PD_T_SENDER_RESPONSE);
}
break;
+ case SNK_NEGOTIATE_PPS_CAPABILITIES:
+ ret = tcpm_pd_send_pps_request(port);
+ if (ret < 0) {
+ port->pps_status = ret;
+ /*
+ * If this was called due to updates to sink
+ * capabilities, and pps is no longer valid, we should
+ * safely fall back to a standard PDO.
+ */
+ if (port->update_sink_caps)
+ tcpm_set_state(port, SNK_NEGOTIATE_CAPABILITIES, 0);
+ else
+ tcpm_set_state(port, SNK_READY, 0);
+ } else {
+ tcpm_set_state_cond(port, hard_reset_state(port),
+ PD_T_SENDER_RESPONSE);
+ }
+ break;
case SNK_TRANSITION_SINK:
case SNK_TRANSITION_SINK_VBUS:
tcpm_set_state(port, hard_reset_state(port),
@@ -2638,6 +2977,7 @@ static void run_state_machine(struct tcpm_port *port)
break;
case SNK_READY:
port->try_snk_count = 0;
+ port->update_sink_caps = false;
if (port->explicit_contract) {
typec_set_pwr_opmode(port->typec_port,
TYPEC_PWR_MODE_PD);
@@ -2646,7 +2986,11 @@ static void run_state_machine(struct tcpm_port *port)
tcpm_swap_complete(port, 0);
tcpm_typec_connect(port);
+
tcpm_check_send_discover(port);
+
+ tcpm_pps_complete(port, port->pps_status);
+
break;
/* Accessory states */
@@ -2693,6 +3037,7 @@ static void run_state_machine(struct tcpm_port *port)
tcpm_set_state(port, SRC_UNATTACHED, PD_T_PS_SOURCE_ON);
break;
case SNK_HARD_RESET_SINK_OFF:
+ memset(&port->pps_data, 0, sizeof(port->pps_data));
tcpm_set_vconn(port, false);
tcpm_set_charge(port, false);
tcpm_set_roles(port, false, TYPEC_SINK, TYPEC_DEVICE);
@@ -2913,6 +3258,7 @@ static void run_state_machine(struct tcpm_port *port)
break;
case ERROR_RECOVERY:
tcpm_swap_complete(port, -EPROTO);
+ tcpm_pps_complete(port, -EPROTO);
tcpm_set_state(port, PORT_RESET, 0);
break;
case PORT_RESET:
@@ -3378,7 +3724,7 @@ static int tcpm_dr_set(const struct typec_capability *cap,
mutex_unlock(&port->lock);
if (!wait_for_completion_timeout(&port->swap_complete,
- msecs_to_jiffies(PD_ROLE_SWAP_TIMEOUT)))
+ msecs_to_jiffies(PD_STATE_MACHINE_TIMEOUT)))
ret = -ETIMEDOUT;
else
ret = port->swap_status;
@@ -3423,7 +3769,7 @@ static int tcpm_pr_set(const struct typec_capability *cap,
mutex_unlock(&port->lock);
if (!wait_for_completion_timeout(&port->swap_complete,
- msecs_to_jiffies(PD_ROLE_SWAP_TIMEOUT)))
+ msecs_to_jiffies(PD_STATE_MACHINE_TIMEOUT)))
ret = -ETIMEDOUT;
else
ret = port->swap_status;
@@ -3463,7 +3809,7 @@ static int tcpm_vconn_set(const struct typec_capability *cap,
mutex_unlock(&port->lock);
if (!wait_for_completion_timeout(&port->swap_complete,
- msecs_to_jiffies(PD_ROLE_SWAP_TIMEOUT)))
+ msecs_to_jiffies(PD_STATE_MACHINE_TIMEOUT)))
ret = -ETIMEDOUT;
else
ret = port->swap_status;
@@ -3495,6 +3841,162 @@ static int tcpm_try_role(const struct typec_capability *cap, int role)
return ret;
}
+static int tcpm_pps_set_op_curr(struct tcpm_port *port, u16 op_curr)
+{
+ unsigned int target_mw;
+ int ret = 0;
+
+ mutex_lock(&port->swap_lock);
+ mutex_lock(&port->lock);
+
+ if (!port->pps_data.active) {
+ ret = -EOPNOTSUPP;
+ goto port_unlock;
+ }
+
+ if (port->state != SNK_READY) {
+ ret = -EAGAIN;
+ goto port_unlock;
+ }
+
+ if (op_curr > port->pps_data.max_curr) {
+ ret = -EINVAL;
+ goto port_unlock;
+ }
+
+ target_mw = (op_curr * port->pps_data.out_volt) / 1000;
+ if (target_mw < port->operating_snk_mw) {
+ ret = -EINVAL;
+ goto port_unlock;
+ }
+
+ reinit_completion(&port->pps_complete);
+ port->pps_data.op_curr = op_curr;
+ port->pps_status = 0;
+ port->pps_pending = true;
+ tcpm_set_state(port, SNK_NEGOTIATE_PPS_CAPABILITIES, 0);
+ mutex_unlock(&port->lock);
+
+ if (!wait_for_completion_timeout(&port->pps_complete,
+ msecs_to_jiffies(PD_STATE_MACHINE_TIMEOUT)))
+ ret = -ETIMEDOUT;
+ else
+ ret = port->pps_status;
+
+ goto swap_unlock;
+
+port_unlock:
+ mutex_unlock(&port->lock);
+swap_unlock:
+ mutex_unlock(&port->swap_lock);
+
+ return ret;
+}
+
+static int tcpm_pps_set_out_volt(struct tcpm_port *port, u16 out_volt)
+{
+ unsigned int target_mw;
+ int ret = 0;
+
+ mutex_lock(&port->swap_lock);
+ mutex_lock(&port->lock);
+
+ if (!port->pps_data.active) {
+ ret = -EOPNOTSUPP;
+ goto port_unlock;
+ }
+
+ if (port->state != SNK_READY) {
+ ret = -EAGAIN;
+ goto port_unlock;
+ }
+
+ if ((out_volt < port->pps_data.min_volt) ||
+ (out_volt > port->pps_data.max_volt)) {
+ ret = -EINVAL;
+ goto port_unlock;
+ }
+
+ target_mw = (port->pps_data.op_curr * out_volt) / 1000;
+ if (target_mw < port->operating_snk_mw) {
+ ret = -EINVAL;
+ goto port_unlock;
+ }
+
+ reinit_completion(&port->pps_complete);
+ port->pps_data.out_volt = out_volt;
+ port->pps_status = 0;
+ port->pps_pending = true;
+ tcpm_set_state(port, SNK_NEGOTIATE_PPS_CAPABILITIES, 0);
+ mutex_unlock(&port->lock);
+
+ if (!wait_for_completion_timeout(&port->pps_complete,
+ msecs_to_jiffies(PD_STATE_MACHINE_TIMEOUT)))
+ ret = -ETIMEDOUT;
+ else
+ ret = port->pps_status;
+
+ goto swap_unlock;
+
+port_unlock:
+ mutex_unlock(&port->lock);
+swap_unlock:
+ mutex_unlock(&port->swap_lock);
+
+ return ret;
+}
+
+static int tcpm_pps_activate(struct tcpm_port *port, bool activate)
+{
+ int ret = 0;
+
+ mutex_lock(&port->swap_lock);
+ mutex_lock(&port->lock);
+
+ if (!port->pps_data.supported) {
+ ret = -EOPNOTSUPP;
+ goto port_unlock;
+ }
+
+ /* Trying to deactivate PPS when already deactivated so just bail */
+ if ((!port->pps_data.active) && (!activate))
+ goto port_unlock;
+
+ if (port->state != SNK_READY) {
+ ret = -EAGAIN;
+ goto port_unlock;
+ }
+
+ reinit_completion(&port->pps_complete);
+ port->pps_status = 0;
+ port->pps_pending = true;
+
+ /* Trigger PPS request or move back to standard PDO contract */
+ if (activate) {
+ port->pps_data.out_volt = port->supply_voltage;
+ port->pps_data.op_curr = port->current_limit;
+ tcpm_set_state(port, SNK_NEGOTIATE_PPS_CAPABILITIES, 0);
+ } else {
+ tcpm_set_state(port, SNK_NEGOTIATE_CAPABILITIES, 0);
+ }
+ mutex_unlock(&port->lock);
+
+ if (!wait_for_completion_timeout(&port->pps_complete,
+ msecs_to_jiffies(PD_STATE_MACHINE_TIMEOUT)))
+ ret = -ETIMEDOUT;
+ else
+ ret = port->pps_status;
+
+ goto swap_unlock;
+
+port_unlock:
+ mutex_unlock(&port->lock);
+swap_unlock:
+ mutex_unlock(&port->swap_lock);
+
+ return ret;
+}
+
static void tcpm_init(struct tcpm_port *port)
{
enum typec_cc_status cc1, cc2;
@@ -3634,13 +4136,18 @@ int tcpm_update_sink_capabilities(struct tcpm_port *port, const u32 *pdo,
port->max_snk_ma = max_snk_ma;
port->max_snk_mw = max_snk_mw;
port->operating_snk_mw = operating_snk_mw;
+ port->update_sink_caps = true;
switch (port->state) {
case SNK_NEGOTIATE_CAPABILITIES:
+ case SNK_NEGOTIATE_PPS_CAPABILITIES:
case SNK_READY:
case SNK_TRANSITION_SINK:
case SNK_TRANSITION_SINK_VBUS:
- tcpm_set_state(port, SNK_NEGOTIATE_CAPABILITIES, 0);
+ if (port->pps_data.active)
+ tcpm_set_state(port, SNK_NEGOTIATE_PPS_CAPABILITIES, 0);
+ else
+ tcpm_set_state(port, SNK_NEGOTIATE_CAPABILITIES, 0);
break;
default:
break;
@@ -3695,6 +4202,7 @@ struct tcpm_port *tcpm_register_port(struct device *dev, struct tcpc_dev *tcpc)
init_completion(&port->tx_complete);
init_completion(&port->swap_complete);
+ init_completion(&port->pps_complete);
tcpm_debugfs_init(port);
if (tcpm_validate_caps(port, tcpc->config->src_pdo,
@@ -3717,6 +4225,9 @@ struct tcpm_port *tcpm_register_port(struct device *dev, struct tcpc_dev *tcpc)
port->nr_batt = nr_type_pdos(port->snk_pdo,
port->nr_snk_pdo,
PDO_TYPE_BATT);
+ port->nr_apdo = nr_type_pdos(port->snk_pdo,
+ port->nr_snk_pdo,
+ PDO_TYPE_APDO);
port->nr_snk_vdo = tcpm_copy_vdos(port->snk_vdo, tcpc->config->snk_vdo,
tcpc->config->nr_snk_vdo);
@@ -3732,7 +4243,7 @@ struct tcpm_port *tcpm_register_port(struct device *dev, struct tcpc_dev *tcpc)
port->typec_caps.prefer_role = tcpc->config->default_role;
port->typec_caps.type = tcpc->config->type;
port->typec_caps.revision = 0x0120; /* Type-C spec release 1.2 */
- port->typec_caps.pd_revision = 0x0200; /* USB-PD spec release 2.0 */
+ port->typec_caps.pd_revision = 0x0300; /* USB-PD spec release 3.0 */
port->typec_caps.dr_set = tcpm_dr_set;
port->typec_caps.pr_set = tcpm_pr_set;
port->typec_caps.vconn_set = tcpm_vconn_set;
diff --git a/include/linux/usb/tcpm.h b/include/linux/usb/tcpm.h
index ca1c0b5..d6673f7 100644
--- a/include/linux/usb/tcpm.h
+++ b/include/linux/usb/tcpm.h
@@ -35,7 +35,7 @@ enum typec_cc_polarity {
/* Time to wait for TCPC to complete transmit */
#define PD_T_TCPC_TX_TIMEOUT 100 /* in ms */
-#define PD_ROLE_SWAP_TIMEOUT (MSEC_PER_SEC * 10)
+#define PD_STATE_MACHINE_TIMEOUT (MSEC_PER_SEC * 10)
enum tcpm_transmit_status {
TCPC_TX_SUCCESS = 0,
^ permalink raw reply related [flat|nested] 31+ messages in thread
* [PATCH v3 4/7] typec: tcpm: Add core support for sink side PPS
@ 2017-12-18 12:41 ` Opensource [Adam Thomson]
0 siblings, 0 replies; 31+ messages in thread
From: Adam Thomson @ 2017-12-18 12:41 UTC (permalink / raw)
To: Heikki Krogerus, Guenter Roeck, Greg Kroah-Hartman,
Sebastian Reichel, Hans de Goede, Yueyao Zhu, Rui Miguel Silva
Cc: linux-usb, linux-pm, linux-kernel, support.opensource
This commit adds code to handle requesting of PPS APDOs. Switching
between standard PDOs and APDOs, and re-requesting an APDO to
modify operating voltage/current will be triggered by an
external call into TCPM.
Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
---
drivers/usb/typec/tcpm.c | 533 ++++++++++++++++++++++++++++++++++++++++++++++-
include/linux/usb/tcpm.h | 2 +-
2 files changed, 523 insertions(+), 12 deletions(-)
diff --git a/drivers/usb/typec/tcpm.c b/drivers/usb/typec/tcpm.c
index f4d563e..b66d26c 100644
--- a/drivers/usb/typec/tcpm.c
+++ b/drivers/usb/typec/tcpm.c
@@ -47,6 +47,7 @@
S(SNK_DISCOVERY_DEBOUNCE_DONE), \
S(SNK_WAIT_CAPABILITIES), \
S(SNK_NEGOTIATE_CAPABILITIES), \
+ S(SNK_NEGOTIATE_PPS_CAPABILITIES), \
S(SNK_TRANSITION_SINK), \
S(SNK_TRANSITION_SINK_VBUS), \
S(SNK_READY), \
@@ -166,6 +167,16 @@ struct pd_mode_data {
struct typec_altmode_desc altmode_desc[SVID_DISCOVERY_MAX];
};
+struct pd_pps_data {
+ u32 min_volt;
+ u32 max_volt;
+ u32 max_curr;
+ u32 out_volt;
+ u32 op_curr;
+ bool supported;
+ bool active;
+};
+
struct tcpm_port {
struct device *dev;
@@ -233,6 +244,7 @@ struct tcpm_port {
struct completion swap_complete;
int swap_status;
+ unsigned int negotiated_rev;
unsigned int message_id;
unsigned int caps_count;
unsigned int hard_reset_count;
@@ -255,6 +267,7 @@ struct tcpm_port {
unsigned int nr_fixed; /* number of fixed sink PDOs */
unsigned int nr_var; /* number of variable sink PDOs */
unsigned int nr_batt; /* number of battery sink PDOs */
+ unsigned int nr_apdo; /* number of APDO type PDOs */
u32 snk_vdo[VDO_MAX_OBJECTS];
unsigned int nr_snk_vdo;
@@ -262,6 +275,7 @@ struct tcpm_port {
unsigned int max_snk_ma;
unsigned int max_snk_mw;
unsigned int operating_snk_mw;
+ bool update_sink_caps;
/* Requested current / voltage */
u32 current_limit;
@@ -278,8 +292,13 @@ struct tcpm_port {
/* VDO to retry if UFP responder replied busy */
u32 vdo_retry;
- /* Alternate mode data */
+ /* PPS */
+ struct pd_pps_data pps_data;
+ struct completion pps_complete;
+ bool pps_pending;
+ int pps_status;
+ /* Alternate mode data */
struct pd_mode_data mode_data;
struct typec_altmode *partner_altmode[SVID_DISCOVERY_MAX];
struct typec_altmode *port_altmode[SVID_DISCOVERY_MAX];
@@ -497,6 +516,16 @@ static void tcpm_log_source_caps(struct tcpm_port *port)
pdo_max_voltage(pdo),
pdo_max_power(pdo));
break;
+ case PDO_TYPE_APDO:
+ if (pdo_apdo_type(pdo) == APDO_TYPE_PPS)
+ scnprintf(msg, sizeof(msg),
+ "%u-%u mV, %u mA",
+ pdo_pps_apdo_min_voltage(pdo),
+ pdo_pps_apdo_max_voltage(pdo),
+ pdo_pps_apdo_max_current(pdo));
+ else
+ strcpy(msg, "undefined APDO");
+ break;
default:
strcpy(msg, "undefined");
break;
@@ -791,11 +820,13 @@ static int tcpm_pd_send_source_caps(struct tcpm_port *port)
msg.header = PD_HEADER_LE(PD_CTRL_REJECT,
port->pwr_role,
port->data_role,
+ port->negotiated_rev,
port->message_id, 0);
} else {
msg.header = PD_HEADER_LE(PD_DATA_SOURCE_CAP,
port->pwr_role,
port->data_role,
+ port->negotiated_rev,
port->message_id,
port->nr_src_pdo);
}
@@ -816,11 +847,13 @@ static int tcpm_pd_send_sink_caps(struct tcpm_port *port)
msg.header = PD_HEADER_LE(PD_CTRL_REJECT,
port->pwr_role,
port->data_role,
+ port->negotiated_rev,
port->message_id, 0);
} else {
msg.header = PD_HEADER_LE(PD_DATA_SINK_CAP,
port->pwr_role,
port->data_role,
+ port->negotiated_rev,
port->message_id,
port->nr_snk_pdo);
}
@@ -1187,6 +1220,7 @@ static void vdm_run_state_machine(struct tcpm_port *port)
msg.header = PD_HEADER_LE(PD_DATA_VENDOR_DEF,
port->pwr_role,
port->data_role,
+ port->negotiated_rev,
port->message_id, port->vdo_count);
for (i = 0; i < port->vdo_count; i++)
msg.payload[i] = cpu_to_le32(port->vdo_data[i]);
@@ -1258,6 +1292,8 @@ enum pdo_err {
PDO_ERR_FIXED_NOT_SORTED,
PDO_ERR_VARIABLE_BATT_NOT_SORTED,
PDO_ERR_DUPE_PDO,
+ PDO_ERR_PPS_APDO_NOT_SORTED,
+ PDO_ERR_DUPE_PPS_APDO,
};
static const char * const pdo_err_msg[] = {
@@ -1273,6 +1309,10 @@ enum pdo_err {
" err: Variable/Battery supply pdos should be in increasing order of their minimum voltage",
[PDO_ERR_DUPE_PDO] =
" err: Variable/Batt supply pdos cannot have same min/max voltage",
+ [PDO_ERR_PPS_APDO_NOT_SORTED] =
+ " err: Programmable power supply apdos should be in increasing order of their maximum voltage",
+ [PDO_ERR_DUPE_PPS_APDO] =
+ " err: Programmable power supply apdos cannot have same min/max voltage and max current",
};
static enum pdo_err tcpm_caps_err(struct tcpm_port *port, const u32 *pdo,
@@ -1322,6 +1362,26 @@ static enum pdo_err tcpm_caps_err(struct tcpm_port *port, const u32 *pdo,
pdo_min_voltage(pdo[i - 1])))
return PDO_ERR_DUPE_PDO;
break;
+ /*
+ * The Programmable Power Supply APDOs, if present,
+ * shall be sent in Maximum Voltage order;
+ * lowest to highest.
+ */
+ case PDO_TYPE_APDO:
+ if (pdo_apdo_type(pdo[i]) != APDO_TYPE_PPS)
+ break;
+
+ if (pdo_pps_apdo_max_current(pdo[i]) <
+ pdo_pps_apdo_max_current(pdo[i - 1]))
+ return PDO_ERR_PPS_APDO_NOT_SORTED;
+ else if ((pdo_pps_apdo_min_voltage(pdo[i]) ==
+ pdo_pps_apdo_min_voltage(pdo[i - 1])) &&
+ (pdo_pps_apdo_max_voltage(pdo[i]) ==
+ pdo_pps_apdo_max_voltage(pdo[i - 1])) &&
+ (pdo_pps_apdo_max_current(pdo[i]) ==
+ pdo_pps_apdo_max_current(pdo[i - 1])))
+ return PDO_ERR_DUPE_PPS_APDO;
+ break;
default:
tcpm_log_force(port, " Unknown pdo type");
}
@@ -1347,11 +1407,16 @@ static int tcpm_validate_caps(struct tcpm_port *port, const u32 *pdo,
/*
* PD (data, control) command handling functions
*/
+
+static int tcpm_pd_send_control(struct tcpm_port *port,
+ enum pd_ctrl_msg_type type);
+
static void tcpm_pd_data_request(struct tcpm_port *port,
const struct pd_message *msg)
{
enum pd_data_msg_type type = pd_header_type_le(msg->header);
unsigned int cnt = pd_header_cnt_le(msg->header);
+ unsigned int rev = pd_header_rev_le(msg->header);
unsigned int i;
switch (type) {
@@ -1370,6 +1435,16 @@ static void tcpm_pd_data_request(struct tcpm_port *port,
port->nr_source_caps);
/*
+ * Adjust revision in subsequent message headers, as required,
+ * to comply with 6.2.1.1.5 of the USB PD 3.0 spec. We don't
+ * support Rev 1.0 so just do nothing in that scenario.
+ */
+ if (rev == PD_REV10)
+ break;
+ else if (rev < PD_MAX_REV)
+ port->negotiated_rev = rev;
+
+ /*
* This message may be received even if VBUS is not
* present. This is quite unexpected; see USB PD
* specification, sections 8.3.3.6.3.1 and 8.3.3.6.3.2.
@@ -1390,6 +1465,19 @@ static void tcpm_pd_data_request(struct tcpm_port *port,
tcpm_queue_message(port, PD_MSG_CTRL_REJECT);
break;
}
+
+ /*
+ * Adjust revision in subsequent message headers, as required,
+ * to comply with 6.2.1.1.5 of the USB PD 3.0 spec. We don't
+ * support Rev 1.0 so just reject in that scenario.
+ */
+ if (rev == PD_REV10) {
+ tcpm_queue_message(port, PD_MSG_CTRL_REJECT);
+ break;
+ } else if (rev < PD_MAX_REV) {
+ port->negotiated_rev = rev;
+ }
+
port->sink_request = le32_to_cpu(msg->payload[0]);
tcpm_set_state(port, SRC_NEGOTIATE_CAPABILITIES, 0);
break;
@@ -1414,6 +1502,15 @@ static void tcpm_pd_data_request(struct tcpm_port *port,
}
}
+static void tcpm_pps_complete(struct tcpm_port *port, int result)
+{
+ if (port->pps_pending) {
+ port->pps_status = result;
+ port->pps_pending = false;
+ complete(&port->pps_complete);
+ }
+}
+
static void tcpm_pd_ctrl_request(struct tcpm_port *port,
const struct pd_message *msg)
{
@@ -1490,6 +1587,14 @@ static void tcpm_pd_ctrl_request(struct tcpm_port *port,
next_state = SNK_WAIT_CAPABILITIES;
tcpm_set_state(port, next_state, 0);
break;
+ case SNK_NEGOTIATE_PPS_CAPABILITIES:
+ /* Revert data back from any requested PPS updates */
+ port->pps_data.out_volt = port->supply_voltage;
+ port->pps_data.op_curr = port->current_limit;
+ port->pps_status = (type == PD_CTRL_WAIT ?
+ -EAGAIN : -EOPNOTSUPP);
+ tcpm_set_state(port, SNK_READY, 0);
+ break;
case DR_SWAP_SEND:
port->swap_status = (type == PD_CTRL_WAIT ?
-EAGAIN : -EOPNOTSUPP);
@@ -1512,6 +1617,13 @@ static void tcpm_pd_ctrl_request(struct tcpm_port *port,
case PD_CTRL_ACCEPT:
switch (port->state) {
case SNK_NEGOTIATE_CAPABILITIES:
+ port->pps_data.active = false;
+ tcpm_set_state(port, SNK_TRANSITION_SINK, 0);
+ break;
+ case SNK_NEGOTIATE_PPS_CAPABILITIES:
+ port->pps_data.active = true;
+ port->supply_voltage = port->pps_data.out_volt;
+ port->current_limit = port->pps_data.op_curr;
tcpm_set_state(port, SNK_TRANSITION_SINK, 0);
break;
case SOFT_RESET_SEND:
@@ -1666,6 +1778,7 @@ static int tcpm_pd_send_control(struct tcpm_port *port,
memset(&msg, 0, sizeof(msg));
msg.header = PD_HEADER_LE(type, port->pwr_role,
port->data_role,
+ port->negotiated_rev,
port->message_id, 0);
return tcpm_pd_transmit(port, TCPC_TX_SOP, &msg);
@@ -1779,6 +1892,8 @@ static int tcpm_pd_select_pdo(struct tcpm_port *port, int *sink_pdo,
unsigned int i, j, max_mw = 0, max_mv = 0, mw = 0, mv = 0, ma = 0;
int ret = -EINVAL;
+ port->pps_data.supported = false;
+
/*
* Select the source PDO providing the most power which has a
* matchig sink cap.
@@ -1787,7 +1902,8 @@ static int tcpm_pd_select_pdo(struct tcpm_port *port, int *sink_pdo,
u32 pdo = port->source_caps[i];
enum pd_pdo_type type = pdo_type(pdo);
- if (type == PDO_TYPE_FIXED) {
+ switch (type) {
+ case PDO_TYPE_FIXED:
for (j = 0; j < port->nr_fixed; j++) {
if (pdo_fixed_voltage(pdo) ==
pdo_fixed_voltage(port->snk_pdo[j])) {
@@ -1809,7 +1925,8 @@ static int tcpm_pd_select_pdo(struct tcpm_port *port, int *sink_pdo,
break;
}
}
- } else if (type == PDO_TYPE_BATT) {
+ break;
+ case PDO_TYPE_BATT:
for (j = port->nr_fixed;
j < port->nr_fixed +
port->nr_batt;
@@ -1830,7 +1947,8 @@ static int tcpm_pd_select_pdo(struct tcpm_port *port, int *sink_pdo,
}
}
}
- } else if (type == PDO_TYPE_VAR) {
+ break;
+ case PDO_TYPE_VAR:
for (j = port->nr_fixed +
port->nr_batt;
j < port->nr_fixed +
@@ -1854,12 +1972,98 @@ static int tcpm_pd_select_pdo(struct tcpm_port *port, int *sink_pdo,
}
}
}
+ break;
+ case PDO_TYPE_APDO:
+ if (pdo_apdo_type(pdo) == APDO_TYPE_PPS)
+ port->pps_data.supported = true;
+ continue;
+ default:
+ tcpm_log(port, "Invalid PDO type, ignoring");
+ continue;
}
}
return ret;
}
+#define min_pps_apdo_current(x, y) \
+ min(pdo_pps_apdo_max_current(x), pdo_pps_apdo_max_current(y))
+
+static unsigned int tcpm_pd_select_pps_apdo(struct tcpm_port *port,
+ int *snk_pdo, int *src_pdo)
+{
+ unsigned int i, j, max_mw = 0, max_mv = 0, mw = 0, mv = 0, ma = 0;
+ enum pd_pdo_type type;
+ u32 pdo;
+ int ret = -EOPNOTSUPP;
+
+ /*
+ * Select the source PPS APDO providing the most power while staying
+ * within the board's limits. We skip the first PDO as this is always
+ * 5V 3A.
+ */
+ *src_pdo = 0;
+ for (i = 1; i < port->nr_source_caps; ++i) {
+ pdo = port->source_caps[i];
+ type = pdo_type(pdo);
+
+ switch (type) {
+ case PDO_TYPE_APDO:
+ if (pdo_apdo_type(pdo) != APDO_TYPE_PPS) {
+ tcpm_log(port, "Not PPS APDO, ignoring");
+ continue;
+ }
+
+ for (j = port->nr_fixed +
+ port->nr_batt +
+ port->nr_var;
+ j < port->nr_fixed +
+ port->nr_batt +
+ port->nr_var +
+ port->nr_apdo;
+ ++j) {
+ if ((pdo_pps_apdo_min_voltage(pdo) >=
+ pdo_pps_apdo_min_voltage(port->snk_pdo[j])) &&
+ (pdo_pps_apdo_max_voltage(pdo) <=
+ pdo_pps_apdo_max_voltage(port->snk_pdo[j]))) {
+ ma = min_pps_apdo_current(pdo,
+ port->snk_pdo[j]);
+ mv = pdo_pps_apdo_max_voltage(pdo);
+ mw = (ma * mv) / 1000;
+ if ((mw > max_mw) ||
+ ((mw == max_mw) && (mv > max_mv))) {
+ ret = 0;
+ *src_pdo = i;
+ *snk_pdo = j;
+ max_mw = mw;
+ max_mv = mv;
+ }
+ }
+ }
+
+ break;
+ default:
+ tcpm_log(port, "Not APDO type, ignoring");
+ continue;
+ }
+ }
+
+ if (*src_pdo > 0) {
+ pdo = port->source_caps[*src_pdo];
+
+ port->pps_data.min_volt = pdo_pps_apdo_min_voltage(pdo);
+ port->pps_data.max_volt = pdo_pps_apdo_max_voltage(pdo);
+ port->pps_data.max_curr =
+ min_pps_apdo_current(pdo, port->snk_pdo[*snk_pdo]);
+ port->pps_data.out_volt =
+ min(port->pps_data.out_volt, pdo_pps_apdo_max_voltage(pdo));
+ port->pps_data.op_curr =
+ min(port->pps_data.op_curr, pdo_pps_apdo_max_current(pdo));
+ }
+
+ return ret;
+}
+
static int tcpm_pd_build_request(struct tcpm_port *port, u32 *rdo)
{
unsigned int mv, ma, mw, flags;
@@ -1875,10 +2079,18 @@ static int tcpm_pd_build_request(struct tcpm_port *port, u32 *rdo)
matching_snk_pdo = port->snk_pdo[snk_pdo_index];
type = pdo_type(pdo);
- if (type == PDO_TYPE_FIXED)
+ switch (type) {
+ case PDO_TYPE_FIXED:
mv = pdo_fixed_voltage(pdo);
- else
+ break;
+ case PDO_TYPE_BATT:
+ case PDO_TYPE_VAR:
mv = pdo_min_voltage(pdo);
+ break;
+ default:
+ tcpm_log(port, "Invalid PDO selected!");
+ return -EINVAL;
+ }
/* Select maximum available current within the sink pdo's limit */
if (type == PDO_TYPE_BATT) {
@@ -1943,6 +2155,107 @@ static int tcpm_pd_send_request(struct tcpm_port *port)
msg.header = PD_HEADER_LE(PD_DATA_REQUEST,
port->pwr_role,
port->data_role,
+ port->negotiated_rev,
+ port->message_id, 1);
+ msg.payload[0] = cpu_to_le32(rdo);
+
+ return tcpm_pd_transmit(port, TCPC_TX_SOP, &msg);
+}
+
+static int tcpm_pd_build_pps_request(struct tcpm_port *port, u32 *rdo)
+{
+ unsigned int out_mv, op_ma, op_mw, min_mv, max_mv, max_ma, flags;
+ enum pd_pdo_type type;
+ int src_pdo_index, snk_pdo_index;
+ u32 pdo, matching_snk_pdo;
+ int ret;
+
+ ret = tcpm_pd_select_pps_apdo(port, &snk_pdo_index, &src_pdo_index);
+ if (ret)
+ return ret;
+
+ pdo = port->source_caps[src_pdo_index];
+ matching_snk_pdo = port->snk_pdo[snk_pdo_index];
+ type = pdo_type(pdo);
+
+ switch (type) {
+ case PDO_TYPE_APDO:
+ if (pdo_apdo_type(pdo) != APDO_TYPE_PPS) {
+ tcpm_log(port, "Invalid APDO selected!");
+ return -EINVAL;
+ }
+ min_mv = pdo_pps_apdo_min_voltage(pdo);
+ max_mv = pdo_pps_apdo_max_voltage(pdo);
+ max_ma = pdo_pps_apdo_max_current(pdo);
+ out_mv = port->pps_data.out_volt;
+ op_ma = port->pps_data.op_curr;
+ break;
+ default:
+ tcpm_log(port, "Invalid PDO selected!");
+ return -EINVAL;
+ }
+
+ flags = RDO_USB_COMM | RDO_NO_SUSPEND;
+
+ op_mw = (op_ma * out_mv) / 1000;
+ if (op_mw < port->operating_snk_mw) {
+ /*
+ * Try raising current to meet power needs. If that's not enough
+ * then try upping the voltage. If that's still not enoguh
+ * then we've obviously chosen a PPS APDO which really isn't
+ * suitable so abandon ship.
+ */
+ op_ma = ((port->operating_snk_mw * 1000) / out_mv);
+ if ((port->operating_snk_mw * 1000) % out_mv)
+ ++op_ma;
+ op_ma += RDO_PROG_CURR_MA_STEP - (op_ma % RDO_PROG_CURR_MA_STEP);
+
+ if (op_ma > max_ma) {
+ op_ma = max_ma;
+ out_mv = ((port->operating_snk_mw * 1000) / op_ma);
+ if ((port->operating_snk_mw * 1000) % op_ma)
+ ++out_mv;
+ out_mv += RDO_PROG_VOLT_MV_STEP -
+ (out_mv % RDO_PROG_VOLT_MV_STEP);
+
+ if (out_mv > max_mv) {
+ tcpm_log(port, "Invalid PPS APDO selected!");
+ return -EINVAL;
+ }
+ }
+ }
+
+ tcpm_log(port, "cc=%d cc1=%d cc2=%d vbus=%d vconn=%s polarity=%d",
+ port->cc_req, port->cc1, port->cc2, port->vbus_source,
+ port->vconn_role == TYPEC_SOURCE ? "source" : "sink",
+ port->polarity);
+
+ *rdo = RDO_PROG(src_pdo_index + 1, out_mv, op_ma, flags);
+
+ tcpm_log(port, "Requesting APDO %d: %u mV, %u mA",
+ src_pdo_index, out_mv, op_ma);
+
+ port->pps_data.op_curr = op_ma;
+ port->pps_data.out_volt = out_mv;
+
+ return 0;
+}
+
+static int tcpm_pd_send_pps_request(struct tcpm_port *port)
+{
+ struct pd_message msg;
+ int ret;
+ u32 rdo;
+
+ ret = tcpm_pd_build_pps_request(port, &rdo);
+ if (ret < 0)
+ return ret;
+
+ memset(&msg, 0, sizeof(msg));
+ msg.header = PD_HEADER_LE(PD_DATA_REQUEST,
+ port->pwr_role,
+ port->data_role,
+ port->negotiated_rev,
port->message_id, 1);
msg.payload[0] = cpu_to_le32(rdo);
@@ -2128,6 +2441,7 @@ static void tcpm_reset_port(struct tcpm_port *port)
tcpm_typec_disconnect(port);
port->attached = false;
port->pd_capable = false;
+ port->pps_data.supported = false;
/*
* First Rx ID should be 0; set this to a sentinel of -1 so that
@@ -2143,6 +2457,8 @@ static void tcpm_reset_port(struct tcpm_port *port)
tcpm_set_attached_state(port, false);
port->try_src_count = 0;
port->try_snk_count = 0;
+ port->supply_voltage = 0;
+ port->current_limit = 0;
}
static void tcpm_detach(struct tcpm_port *port)
@@ -2389,6 +2705,7 @@ static void run_state_machine(struct tcpm_port *port)
typec_set_pwr_opmode(port->typec_port, opmode);
port->pwr_opmode = TYPEC_PWR_MODE_USB;
port->caps_count = 0;
+ port->negotiated_rev = PD_MAX_REV;
port->message_id = 0;
port->rx_msgid = -1;
port->explicit_contract = false;
@@ -2449,6 +2766,7 @@ static void run_state_machine(struct tcpm_port *port)
tcpm_swap_complete(port, 0);
tcpm_typec_connect(port);
+
tcpm_check_send_discover(port);
/*
* 6.3.5
@@ -2472,6 +2790,7 @@ static void run_state_machine(struct tcpm_port *port)
case SNK_UNATTACHED:
if (!port->non_pd_role_swap)
tcpm_swap_complete(port, -ENOTCONN);
+ tcpm_pps_complete(port, -ENOTCONN);
tcpm_snk_detach(port);
if (tcpm_start_drp_toggling(port)) {
tcpm_set_state(port, DRP_TOGGLING, 0);
@@ -2480,6 +2799,7 @@ static void run_state_machine(struct tcpm_port *port)
tcpm_set_cc(port, TYPEC_CC_RD);
if (port->port_type == TYPEC_PORT_DRP)
tcpm_set_state(port, SRC_UNATTACHED, PD_T_DRP_SRC);
+
break;
case SNK_ATTACH_WAIT:
if ((port->cc1 == TYPEC_CC_OPEN &&
@@ -2561,6 +2881,7 @@ static void run_state_machine(struct tcpm_port *port)
port->cc2 : port->cc1);
typec_set_pwr_opmode(port->typec_port, opmode);
port->pwr_opmode = TYPEC_PWR_MODE_USB;
+ port->negotiated_rev = PD_MAX_REV;
port->message_id = 0;
port->rx_msgid = -1;
port->explicit_contract = false;
@@ -2631,6 +2952,24 @@ static void run_state_machine(struct tcpm_port *port)
PD_T_SENDER_RESPONSE);
}
break;
+ case SNK_NEGOTIATE_PPS_CAPABILITIES:
+ ret = tcpm_pd_send_pps_request(port);
+ if (ret < 0) {
+ port->pps_status = ret;
+ /*
+ * If this was called due to updates to sink
+ * capabilities, and pps is no longer valid, we should
+ * safely fall back to a standard PDO.
+ */
+ if (port->update_sink_caps)
+ tcpm_set_state(port, SNK_NEGOTIATE_CAPABILITIES, 0);
+ else
+ tcpm_set_state(port, SNK_READY, 0);
+ } else {
+ tcpm_set_state_cond(port, hard_reset_state(port),
+ PD_T_SENDER_RESPONSE);
+ }
+ break;
case SNK_TRANSITION_SINK:
case SNK_TRANSITION_SINK_VBUS:
tcpm_set_state(port, hard_reset_state(port),
@@ -2638,6 +2977,7 @@ static void run_state_machine(struct tcpm_port *port)
break;
case SNK_READY:
port->try_snk_count = 0;
+ port->update_sink_caps = false;
if (port->explicit_contract) {
typec_set_pwr_opmode(port->typec_port,
TYPEC_PWR_MODE_PD);
@@ -2646,7 +2986,11 @@ static void run_state_machine(struct tcpm_port *port)
tcpm_swap_complete(port, 0);
tcpm_typec_connect(port);
+
tcpm_check_send_discover(port);
+
+ tcpm_pps_complete(port, port->pps_status);
+
break;
/* Accessory states */
@@ -2693,6 +3037,7 @@ static void run_state_machine(struct tcpm_port *port)
tcpm_set_state(port, SRC_UNATTACHED, PD_T_PS_SOURCE_ON);
break;
case SNK_HARD_RESET_SINK_OFF:
+ memset(&port->pps_data, 0, sizeof(port->pps_data));
tcpm_set_vconn(port, false);
tcpm_set_charge(port, false);
tcpm_set_roles(port, false, TYPEC_SINK, TYPEC_DEVICE);
@@ -2913,6 +3258,7 @@ static void run_state_machine(struct tcpm_port *port)
break;
case ERROR_RECOVERY:
tcpm_swap_complete(port, -EPROTO);
+ tcpm_pps_complete(port, -EPROTO);
tcpm_set_state(port, PORT_RESET, 0);
break;
case PORT_RESET:
@@ -3378,7 +3724,7 @@ static int tcpm_dr_set(const struct typec_capability *cap,
mutex_unlock(&port->lock);
if (!wait_for_completion_timeout(&port->swap_complete,
- msecs_to_jiffies(PD_ROLE_SWAP_TIMEOUT)))
+ msecs_to_jiffies(PD_STATE_MACHINE_TIMEOUT)))
ret = -ETIMEDOUT;
else
ret = port->swap_status;
@@ -3423,7 +3769,7 @@ static int tcpm_pr_set(const struct typec_capability *cap,
mutex_unlock(&port->lock);
if (!wait_for_completion_timeout(&port->swap_complete,
- msecs_to_jiffies(PD_ROLE_SWAP_TIMEOUT)))
+ msecs_to_jiffies(PD_STATE_MACHINE_TIMEOUT)))
ret = -ETIMEDOUT;
else
ret = port->swap_status;
@@ -3463,7 +3809,7 @@ static int tcpm_vconn_set(const struct typec_capability *cap,
mutex_unlock(&port->lock);
if (!wait_for_completion_timeout(&port->swap_complete,
- msecs_to_jiffies(PD_ROLE_SWAP_TIMEOUT)))
+ msecs_to_jiffies(PD_STATE_MACHINE_TIMEOUT)))
ret = -ETIMEDOUT;
else
ret = port->swap_status;
@@ -3495,6 +3841,162 @@ static int tcpm_try_role(const struct typec_capability *cap, int role)
return ret;
}
+static int tcpm_pps_set_op_curr(struct tcpm_port *port, u16 op_curr)
+{
+ unsigned int target_mw;
+ int ret = 0;
+
+ mutex_lock(&port->swap_lock);
+ mutex_lock(&port->lock);
+
+ if (!port->pps_data.active) {
+ ret = -EOPNOTSUPP;
+ goto port_unlock;
+ }
+
+ if (port->state != SNK_READY) {
+ ret = -EAGAIN;
+ goto port_unlock;
+ }
+
+ if (op_curr > port->pps_data.max_curr) {
+ ret = -EINVAL;
+ goto port_unlock;
+ }
+
+ target_mw = (op_curr * port->pps_data.out_volt) / 1000;
+ if (target_mw < port->operating_snk_mw) {
+ ret = -EINVAL;
+ goto port_unlock;
+ }
+
+ reinit_completion(&port->pps_complete);
+ port->pps_data.op_curr = op_curr;
+ port->pps_status = 0;
+ port->pps_pending = true;
+ tcpm_set_state(port, SNK_NEGOTIATE_PPS_CAPABILITIES, 0);
+ mutex_unlock(&port->lock);
+
+ if (!wait_for_completion_timeout(&port->pps_complete,
+ msecs_to_jiffies(PD_STATE_MACHINE_TIMEOUT)))
+ ret = -ETIMEDOUT;
+ else
+ ret = port->pps_status;
+
+ goto swap_unlock;
+
+port_unlock:
+ mutex_unlock(&port->lock);
+swap_unlock:
+ mutex_unlock(&port->swap_lock);
+
+ return ret;
+}
+
+static int tcpm_pps_set_out_volt(struct tcpm_port *port, u16 out_volt)
+{
+ unsigned int target_mw;
+ int ret = 0;
+
+ mutex_lock(&port->swap_lock);
+ mutex_lock(&port->lock);
+
+ if (!port->pps_data.active) {
+ ret = -EOPNOTSUPP;
+ goto port_unlock;
+ }
+
+ if (port->state != SNK_READY) {
+ ret = -EAGAIN;
+ goto port_unlock;
+ }
+
+ if ((out_volt < port->pps_data.min_volt) ||
+ (out_volt > port->pps_data.max_volt)) {
+ ret = -EINVAL;
+ goto port_unlock;
+ }
+
+ target_mw = (port->pps_data.op_curr * out_volt) / 1000;
+ if (target_mw < port->operating_snk_mw) {
+ ret = -EINVAL;
+ goto port_unlock;
+ }
+
+ reinit_completion(&port->pps_complete);
+ port->pps_data.out_volt = out_volt;
+ port->pps_status = 0;
+ port->pps_pending = true;
+ tcpm_set_state(port, SNK_NEGOTIATE_PPS_CAPABILITIES, 0);
+ mutex_unlock(&port->lock);
+
+ if (!wait_for_completion_timeout(&port->pps_complete,
+ msecs_to_jiffies(PD_STATE_MACHINE_TIMEOUT)))
+ ret = -ETIMEDOUT;
+ else
+ ret = port->pps_status;
+
+ goto swap_unlock;
+
+port_unlock:
+ mutex_unlock(&port->lock);
+swap_unlock:
+ mutex_unlock(&port->swap_lock);
+
+ return ret;
+}
+
+static int tcpm_pps_activate(struct tcpm_port *port, bool activate)
+{
+ int ret = 0;
+
+ mutex_lock(&port->swap_lock);
+ mutex_lock(&port->lock);
+
+ if (!port->pps_data.supported) {
+ ret = -EOPNOTSUPP;
+ goto port_unlock;
+ }
+
+ /* Trying to deactivate PPS when already deactivated so just bail */
+ if ((!port->pps_data.active) && (!activate))
+ goto port_unlock;
+
+ if (port->state != SNK_READY) {
+ ret = -EAGAIN;
+ goto port_unlock;
+ }
+
+ reinit_completion(&port->pps_complete);
+ port->pps_status = 0;
+ port->pps_pending = true;
+
+ /* Trigger PPS request or move back to standard PDO contract */
+ if (activate) {
+ port->pps_data.out_volt = port->supply_voltage;
+ port->pps_data.op_curr = port->current_limit;
+ tcpm_set_state(port, SNK_NEGOTIATE_PPS_CAPABILITIES, 0);
+ } else {
+ tcpm_set_state(port, SNK_NEGOTIATE_CAPABILITIES, 0);
+ }
+ mutex_unlock(&port->lock);
+
+ if (!wait_for_completion_timeout(&port->pps_complete,
+ msecs_to_jiffies(PD_STATE_MACHINE_TIMEOUT)))
+ ret = -ETIMEDOUT;
+ else
+ ret = port->pps_status;
+
+ goto swap_unlock;
+
+port_unlock:
+ mutex_unlock(&port->lock);
+swap_unlock:
+ mutex_unlock(&port->swap_lock);
+
+ return ret;
+}
+
static void tcpm_init(struct tcpm_port *port)
{
enum typec_cc_status cc1, cc2;
@@ -3634,13 +4136,18 @@ int tcpm_update_sink_capabilities(struct tcpm_port *port, const u32 *pdo,
port->max_snk_ma = max_snk_ma;
port->max_snk_mw = max_snk_mw;
port->operating_snk_mw = operating_snk_mw;
+ port->update_sink_caps = true;
switch (port->state) {
case SNK_NEGOTIATE_CAPABILITIES:
+ case SNK_NEGOTIATE_PPS_CAPABILITIES:
case SNK_READY:
case SNK_TRANSITION_SINK:
case SNK_TRANSITION_SINK_VBUS:
- tcpm_set_state(port, SNK_NEGOTIATE_CAPABILITIES, 0);
+ if (port->pps_data.active)
+ tcpm_set_state(port, SNK_NEGOTIATE_PPS_CAPABILITIES, 0);
+ else
+ tcpm_set_state(port, SNK_NEGOTIATE_CAPABILITIES, 0);
break;
default:
break;
@@ -3695,6 +4202,7 @@ struct tcpm_port *tcpm_register_port(struct device *dev, struct tcpc_dev *tcpc)
init_completion(&port->tx_complete);
init_completion(&port->swap_complete);
+ init_completion(&port->pps_complete);
tcpm_debugfs_init(port);
if (tcpm_validate_caps(port, tcpc->config->src_pdo,
@@ -3717,6 +4225,9 @@ struct tcpm_port *tcpm_register_port(struct device *dev, struct tcpc_dev *tcpc)
port->nr_batt = nr_type_pdos(port->snk_pdo,
port->nr_snk_pdo,
PDO_TYPE_BATT);
+ port->nr_apdo = nr_type_pdos(port->snk_pdo,
+ port->nr_snk_pdo,
+ PDO_TYPE_APDO);
port->nr_snk_vdo = tcpm_copy_vdos(port->snk_vdo, tcpc->config->snk_vdo,
tcpc->config->nr_snk_vdo);
@@ -3732,7 +4243,7 @@ struct tcpm_port *tcpm_register_port(struct device *dev, struct tcpc_dev *tcpc)
port->typec_caps.prefer_role = tcpc->config->default_role;
port->typec_caps.type = tcpc->config->type;
port->typec_caps.revision = 0x0120; /* Type-C spec release 1.2 */
- port->typec_caps.pd_revision = 0x0200; /* USB-PD spec release 2.0 */
+ port->typec_caps.pd_revision = 0x0300; /* USB-PD spec release 3.0 */
port->typec_caps.dr_set = tcpm_dr_set;
port->typec_caps.pr_set = tcpm_pr_set;
port->typec_caps.vconn_set = tcpm_vconn_set;
diff --git a/include/linux/usb/tcpm.h b/include/linux/usb/tcpm.h
index ca1c0b5..d6673f7 100644
--- a/include/linux/usb/tcpm.h
+++ b/include/linux/usb/tcpm.h
@@ -35,7 +35,7 @@ enum typec_cc_polarity {
/* Time to wait for TCPC to complete transmit */
#define PD_T_TCPC_TX_TIMEOUT 100 /* in ms */
-#define PD_ROLE_SWAP_TIMEOUT (MSEC_PER_SEC * 10)
+#define PD_STATE_MACHINE_TIMEOUT (MSEC_PER_SEC * 10)
enum tcpm_transmit_status {
TCPC_TX_SUCCESS = 0,
--
1.9.1
^ permalink raw reply related [flat|nested] 31+ messages in thread
* [PATCH v3 5/7] power: supply: Add 'connected_type' property and supporting code
@ 2017-12-18 12:41 ` Opensource [Adam Thomson]
0 siblings, 0 replies; 31+ messages in thread
From: Adam Thomson @ 2017-12-18 12:41 UTC (permalink / raw)
To: Heikki Krogerus, Guenter Roeck, Greg Kroah-Hartman,
Sebastian Reichel, Hans de Goede, Yueyao Zhu, Rui Miguel Silva
Cc: linux-usb, linux-pm, linux-kernel, support.opensource
This commit adds the 'connected_type' property to represent supplies
which can report a number of different types of supply based on a
connection event.
Examples of this already exist in drivers whereby the existing 'type'
property is updated, based on an event, to represent what was
connected (e.g. USB_DCP, USB_ACA, ...). Current implementations
however don't show all supported connectable types, so this knowledge
has to be exlicitly known for each driver that supports this.
The 'connected_type' property is intended to fill this void and show
users all possible types supported by a driver. The property, when
read, shows all available types for the driver, and the one currently
chosen is highlighted/bracketed. It is expected that the 'type'
property would then just show the top-level type, such as 'USB', and
this would be static.
Currently the 'conn_type' enum contains all of the USB variant types
that exist for the 'type' enum at this time, and in addition has
the PPS type. In the future this can be extended further for other
types which have multiple connected types supported. The mirroring
is intentional so as to not impact existing usage of the 'type'
property.
Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
---
drivers/power/supply/power_supply_sysfs.c | 50 +++++++++++++++++++++++++++++++
include/linux/power_supply.h | 15 ++++++++++
2 files changed, 65 insertions(+)
diff --git a/drivers/power/supply/power_supply_sysfs.c b/drivers/power/supply/power_supply_sysfs.c
index 5204f11..1b3b202 100644
--- a/drivers/power/supply/power_supply_sysfs.c
+++ b/drivers/power/supply/power_supply_sysfs.c
@@ -46,6 +46,11 @@
"USB_PD", "USB_PD_DRP", "BrickID"
};
+static const char * const power_supply_conn_type_text[] = {
+ "Unknown", "USB_DCP", "USB_CDP", "USB_ACA", "USB_C",
+ "USB_PD", "USB_PD_DRP", "USB_PD_PPS", "BrickID"
+};
+
static const char * const power_supply_status_text[] = {
"Unknown", "Charging", "Discharging", "Not charging", "Full"
};
@@ -73,6 +78,46 @@
"Unknown", "System", "Device"
};
+static ssize_t power_supply_show_conn_type(struct device *dev,
+ enum power_supply_conn_type *conn_types,
+ ssize_t num_conn_types,
+ union power_supply_propval *value,
+ char *buf)
+{
+ enum power_supply_conn_type conn_type;
+ ssize_t count = 0;
+ bool match = false;
+ int i;
+
+ if ((!conn_types) || (num_conn_types <= 0)) {
+ dev_warn(dev, "driver has no valid connected types\n");
+ return -ENODATA;
+ }
+
+ for (i = 0; i < num_conn_types; ++i) {
+ conn_type = conn_types[i];
+
+ if (value->intval == conn_type) {
+ count += sprintf(buf + count, "[%s] ",
+ power_supply_conn_type_text[conn_type]);
+ match = true;
+ } else {
+ count += sprintf(buf + count, "%s ",
+ power_supply_conn_type_text[conn_type]);
+ }
+ }
+
+ if (!match) {
+ dev_warn(dev, "driver reporting unsupported connected type\n");
+ return -EINVAL;
+ }
+
+ if (count)
+ buf[count - 1] = '\n';
+
+ return count;
+}
+
static ssize_t power_supply_show_property(struct device *dev,
struct device_attribute *attr,
char *buf) {
@@ -115,6 +160,10 @@ static ssize_t power_supply_show_property(struct device *dev,
else if (off == POWER_SUPPLY_PROP_TYPE)
return sprintf(buf, "%s\n",
power_supply_type_text[value.intval]);
+ else if (off == POWER_SUPPLY_PROP_CONNECTED_TYPE)
+ return power_supply_show_conn_type(dev, psy->desc->conn_types,
+ psy->desc->num_conn_types,
+ &value, buf);
else if (off == POWER_SUPPLY_PROP_SCOPE)
return sprintf(buf, "%s\n",
power_supply_scope_text[value.intval]);
@@ -241,6 +290,7 @@ static ssize_t power_supply_store_property(struct device *dev,
POWER_SUPPLY_ATTR(time_to_full_now),
POWER_SUPPLY_ATTR(time_to_full_avg),
POWER_SUPPLY_ATTR(type),
+ POWER_SUPPLY_ATTR(connected_type),
POWER_SUPPLY_ATTR(scope),
POWER_SUPPLY_ATTR(precharge_current),
POWER_SUPPLY_ATTR(charge_term_current),
diff --git a/include/linux/power_supply.h b/include/linux/power_supply.h
index 79e90b3..e15a629 100644
--- a/include/linux/power_supply.h
+++ b/include/linux/power_supply.h
@@ -145,6 +145,7 @@ enum power_supply_property {
POWER_SUPPLY_PROP_TIME_TO_FULL_NOW,
POWER_SUPPLY_PROP_TIME_TO_FULL_AVG,
POWER_SUPPLY_PROP_TYPE, /* use power_supply.type instead */
+ POWER_SUPPLY_PROP_CONNECTED_TYPE,
POWER_SUPPLY_PROP_SCOPE,
POWER_SUPPLY_PROP_PRECHARGE_CURRENT,
POWER_SUPPLY_PROP_CHARGE_TERM_CURRENT,
@@ -170,6 +171,18 @@ enum power_supply_type {
POWER_SUPPLY_TYPE_APPLE_BRICK_ID, /* Apple Charging Method */
};
+enum power_supply_conn_type {
+ POWER_SUPPLY_CONN_TYPE_UNKNOWN = 0,
+ POWER_SUPPLY_CONN_TYPE_USB_DCP, /* Dedicated Charging Port */
+ POWER_SUPPLY_CONN_TYPE_USB_CDP, /* Charging Downstream Port */
+ POWER_SUPPLY_CONN_TYPE_USB_ACA, /* Accessory Charger Adapters */
+ POWER_SUPPLY_CONN_TYPE_USB_TYPE_C, /* Type C Port */
+ POWER_SUPPLY_CONN_TYPE_USB_PD, /* Power Delivery Port */
+ POWER_SUPPLY_CONN_TYPE_USB_PD_DRP, /* PD Dual Role Port */
+ POWER_SUPPLY_CONN_TYPE_USB_PD_PPS, /* PD Programmable Power Supply */
+ POWER_SUPPLY_CONN_TYPE_APPLE_BRICK_ID, /* Apple Charging Method */
+};
+
enum power_supply_notifier_events {
PSY_EVENT_PROP_CHANGED,
};
@@ -196,6 +209,8 @@ struct power_supply_config {
struct power_supply_desc {
const char *name;
enum power_supply_type type;
+ enum power_supply_conn_type *conn_types;
+ size_t num_conn_types;
enum power_supply_property *properties;
size_t num_properties;
--
1.9.1
^ permalink raw reply related [flat|nested] 31+ messages in thread
* [v3,5/7] power: supply: Add 'connected_type' property and supporting code
@ 2017-12-18 12:41 ` Opensource [Adam Thomson]
0 siblings, 0 replies; 31+ messages in thread
From: Opensource [Adam Thomson] @ 2017-12-18 12:41 UTC (permalink / raw)
To: Heikki Krogerus, Guenter Roeck, Greg Kroah-Hartman,
Sebastian Reichel, Hans de Goede, Yueyao Zhu, Rui Miguel Silva
Cc: linux-usb, linux-pm, linux-kernel, support.opensource
This commit adds the 'connected_type' property to represent supplies
which can report a number of different types of supply based on a
connection event.
Examples of this already exist in drivers whereby the existing 'type'
property is updated, based on an event, to represent what was
connected (e.g. USB_DCP, USB_ACA, ...). Current implementations
however don't show all supported connectable types, so this knowledge
has to be exlicitly known for each driver that supports this.
The 'connected_type' property is intended to fill this void and show
users all possible types supported by a driver. The property, when
read, shows all available types for the driver, and the one currently
chosen is highlighted/bracketed. It is expected that the 'type'
property would then just show the top-level type, such as 'USB', and
this would be static.
Currently the 'conn_type' enum contains all of the USB variant types
that exist for the 'type' enum at this time, and in addition has
the PPS type. In the future this can be extended further for other
types which have multiple connected types supported. The mirroring
is intentional so as to not impact existing usage of the 'type'
property.
Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
---
drivers/power/supply/power_supply_sysfs.c | 50 +++++++++++++++++++++++++++++++
include/linux/power_supply.h | 15 ++++++++++
2 files changed, 65 insertions(+)
diff --git a/drivers/power/supply/power_supply_sysfs.c b/drivers/power/supply/power_supply_sysfs.c
index 5204f11..1b3b202 100644
--- a/drivers/power/supply/power_supply_sysfs.c
+++ b/drivers/power/supply/power_supply_sysfs.c
@@ -46,6 +46,11 @@
"USB_PD", "USB_PD_DRP", "BrickID"
};
+static const char * const power_supply_conn_type_text[] = {
+ "Unknown", "USB_DCP", "USB_CDP", "USB_ACA", "USB_C",
+ "USB_PD", "USB_PD_DRP", "USB_PD_PPS", "BrickID"
+};
+
static const char * const power_supply_status_text[] = {
"Unknown", "Charging", "Discharging", "Not charging", "Full"
};
@@ -73,6 +78,46 @@
"Unknown", "System", "Device"
};
+static ssize_t power_supply_show_conn_type(struct device *dev,
+ enum power_supply_conn_type *conn_types,
+ ssize_t num_conn_types,
+ union power_supply_propval *value,
+ char *buf)
+{
+ enum power_supply_conn_type conn_type;
+ ssize_t count = 0;
+ bool match = false;
+ int i;
+
+ if ((!conn_types) || (num_conn_types <= 0)) {
+ dev_warn(dev, "driver has no valid connected types\n");
+ return -ENODATA;
+ }
+
+ for (i = 0; i < num_conn_types; ++i) {
+ conn_type = conn_types[i];
+
+ if (value->intval == conn_type) {
+ count += sprintf(buf + count, "[%s] ",
+ power_supply_conn_type_text[conn_type]);
+ match = true;
+ } else {
+ count += sprintf(buf + count, "%s ",
+ power_supply_conn_type_text[conn_type]);
+ }
+ }
+
+ if (!match) {
+ dev_warn(dev, "driver reporting unsupported connected type\n");
+ return -EINVAL;
+ }
+
+ if (count)
+ buf[count - 1] = '\n';
+
+ return count;
+}
+
static ssize_t power_supply_show_property(struct device *dev,
struct device_attribute *attr,
char *buf) {
@@ -115,6 +160,10 @@ static ssize_t power_supply_show_property(struct device *dev,
else if (off == POWER_SUPPLY_PROP_TYPE)
return sprintf(buf, "%s\n",
power_supply_type_text[value.intval]);
+ else if (off == POWER_SUPPLY_PROP_CONNECTED_TYPE)
+ return power_supply_show_conn_type(dev, psy->desc->conn_types,
+ psy->desc->num_conn_types,
+ &value, buf);
else if (off == POWER_SUPPLY_PROP_SCOPE)
return sprintf(buf, "%s\n",
power_supply_scope_text[value.intval]);
@@ -241,6 +290,7 @@ static ssize_t power_supply_store_property(struct device *dev,
POWER_SUPPLY_ATTR(time_to_full_now),
POWER_SUPPLY_ATTR(time_to_full_avg),
POWER_SUPPLY_ATTR(type),
+ POWER_SUPPLY_ATTR(connected_type),
POWER_SUPPLY_ATTR(scope),
POWER_SUPPLY_ATTR(precharge_current),
POWER_SUPPLY_ATTR(charge_term_current),
diff --git a/include/linux/power_supply.h b/include/linux/power_supply.h
index 79e90b3..e15a629 100644
--- a/include/linux/power_supply.h
+++ b/include/linux/power_supply.h
@@ -145,6 +145,7 @@ enum power_supply_property {
POWER_SUPPLY_PROP_TIME_TO_FULL_NOW,
POWER_SUPPLY_PROP_TIME_TO_FULL_AVG,
POWER_SUPPLY_PROP_TYPE, /* use power_supply.type instead */
+ POWER_SUPPLY_PROP_CONNECTED_TYPE,
POWER_SUPPLY_PROP_SCOPE,
POWER_SUPPLY_PROP_PRECHARGE_CURRENT,
POWER_SUPPLY_PROP_CHARGE_TERM_CURRENT,
@@ -170,6 +171,18 @@ enum power_supply_type {
POWER_SUPPLY_TYPE_APPLE_BRICK_ID, /* Apple Charging Method */
};
+enum power_supply_conn_type {
+ POWER_SUPPLY_CONN_TYPE_UNKNOWN = 0,
+ POWER_SUPPLY_CONN_TYPE_USB_DCP, /* Dedicated Charging Port */
+ POWER_SUPPLY_CONN_TYPE_USB_CDP, /* Charging Downstream Port */
+ POWER_SUPPLY_CONN_TYPE_USB_ACA, /* Accessory Charger Adapters */
+ POWER_SUPPLY_CONN_TYPE_USB_TYPE_C, /* Type C Port */
+ POWER_SUPPLY_CONN_TYPE_USB_PD, /* Power Delivery Port */
+ POWER_SUPPLY_CONN_TYPE_USB_PD_DRP, /* PD Dual Role Port */
+ POWER_SUPPLY_CONN_TYPE_USB_PD_PPS, /* PD Programmable Power Supply */
+ POWER_SUPPLY_CONN_TYPE_APPLE_BRICK_ID, /* Apple Charging Method */
+};
+
enum power_supply_notifier_events {
PSY_EVENT_PROP_CHANGED,
};
@@ -196,6 +209,8 @@ struct power_supply_config {
struct power_supply_desc {
const char *name;
enum power_supply_type type;
+ enum power_supply_conn_type *conn_types;
+ size_t num_conn_types;
enum power_supply_property *properties;
size_t num_properties;
^ permalink raw reply related [flat|nested] 31+ messages in thread
* [PATCH v3 5/7] power: supply: Add 'connected_type' property and supporting code
@ 2017-12-18 12:41 ` Opensource [Adam Thomson]
0 siblings, 0 replies; 31+ messages in thread
From: Adam Thomson @ 2017-12-18 12:41 UTC (permalink / raw)
To: Heikki Krogerus, Guenter Roeck, Greg Kroah-Hartman,
Sebastian Reichel, Hans de Goede, Yueyao Zhu, Rui Miguel Silva
Cc: linux-usb, linux-pm, linux-kernel, support.opensource
This commit adds the 'connected_type' property to represent supplies
which can report a number of different types of supply based on a
connection event.
Examples of this already exist in drivers whereby the existing 'type'
property is updated, based on an event, to represent what was
connected (e.g. USB_DCP, USB_ACA, ...). Current implementations
however don't show all supported connectable types, so this knowledge
has to be exlicitly known for each driver that supports this.
The 'connected_type' property is intended to fill this void and show
users all possible types supported by a driver. The property, when
read, shows all available types for the driver, and the one currently
chosen is highlighted/bracketed. It is expected that the 'type'
property would then just show the top-level type, such as 'USB', and
this would be static.
Currently the 'conn_type' enum contains all of the USB variant types
that exist for the 'type' enum at this time, and in addition has
the PPS type. In the future this can be extended further for other
types which have multiple connected types supported. The mirroring
is intentional so as to not impact existing usage of the 'type'
property.
Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
---
drivers/power/supply/power_supply_sysfs.c | 50 +++++++++++++++++++++++++++++++
include/linux/power_supply.h | 15 ++++++++++
2 files changed, 65 insertions(+)
diff --git a/drivers/power/supply/power_supply_sysfs.c b/drivers/power/supply/power_supply_sysfs.c
index 5204f11..1b3b202 100644
--- a/drivers/power/supply/power_supply_sysfs.c
+++ b/drivers/power/supply/power_supply_sysfs.c
@@ -46,6 +46,11 @@
"USB_PD", "USB_PD_DRP", "BrickID"
};
+static const char * const power_supply_conn_type_text[] = {
+ "Unknown", "USB_DCP", "USB_CDP", "USB_ACA", "USB_C",
+ "USB_PD", "USB_PD_DRP", "USB_PD_PPS", "BrickID"
+};
+
static const char * const power_supply_status_text[] = {
"Unknown", "Charging", "Discharging", "Not charging", "Full"
};
@@ -73,6 +78,46 @@
"Unknown", "System", "Device"
};
+static ssize_t power_supply_show_conn_type(struct device *dev,
+ enum power_supply_conn_type *conn_types,
+ ssize_t num_conn_types,
+ union power_supply_propval *value,
+ char *buf)
+{
+ enum power_supply_conn_type conn_type;
+ ssize_t count = 0;
+ bool match = false;
+ int i;
+
+ if ((!conn_types) || (num_conn_types <= 0)) {
+ dev_warn(dev, "driver has no valid connected types\n");
+ return -ENODATA;
+ }
+
+ for (i = 0; i < num_conn_types; ++i) {
+ conn_type = conn_types[i];
+
+ if (value->intval == conn_type) {
+ count += sprintf(buf + count, "[%s] ",
+ power_supply_conn_type_text[conn_type]);
+ match = true;
+ } else {
+ count += sprintf(buf + count, "%s ",
+ power_supply_conn_type_text[conn_type]);
+ }
+ }
+
+ if (!match) {
+ dev_warn(dev, "driver reporting unsupported connected type\n");
+ return -EINVAL;
+ }
+
+ if (count)
+ buf[count - 1] = '\n';
+
+ return count;
+}
+
static ssize_t power_supply_show_property(struct device *dev,
struct device_attribute *attr,
char *buf) {
@@ -115,6 +160,10 @@ static ssize_t power_supply_show_property(struct device *dev,
else if (off == POWER_SUPPLY_PROP_TYPE)
return sprintf(buf, "%s\n",
power_supply_type_text[value.intval]);
+ else if (off == POWER_SUPPLY_PROP_CONNECTED_TYPE)
+ return power_supply_show_conn_type(dev, psy->desc->conn_types,
+ psy->desc->num_conn_types,
+ &value, buf);
else if (off == POWER_SUPPLY_PROP_SCOPE)
return sprintf(buf, "%s\n",
power_supply_scope_text[value.intval]);
@@ -241,6 +290,7 @@ static ssize_t power_supply_store_property(struct device *dev,
POWER_SUPPLY_ATTR(time_to_full_now),
POWER_SUPPLY_ATTR(time_to_full_avg),
POWER_SUPPLY_ATTR(type),
+ POWER_SUPPLY_ATTR(connected_type),
POWER_SUPPLY_ATTR(scope),
POWER_SUPPLY_ATTR(precharge_current),
POWER_SUPPLY_ATTR(charge_term_current),
diff --git a/include/linux/power_supply.h b/include/linux/power_supply.h
index 79e90b3..e15a629 100644
--- a/include/linux/power_supply.h
+++ b/include/linux/power_supply.h
@@ -145,6 +145,7 @@ enum power_supply_property {
POWER_SUPPLY_PROP_TIME_TO_FULL_NOW,
POWER_SUPPLY_PROP_TIME_TO_FULL_AVG,
POWER_SUPPLY_PROP_TYPE, /* use power_supply.type instead */
+ POWER_SUPPLY_PROP_CONNECTED_TYPE,
POWER_SUPPLY_PROP_SCOPE,
POWER_SUPPLY_PROP_PRECHARGE_CURRENT,
POWER_SUPPLY_PROP_CHARGE_TERM_CURRENT,
@@ -170,6 +171,18 @@ enum power_supply_type {
POWER_SUPPLY_TYPE_APPLE_BRICK_ID, /* Apple Charging Method */
};
+enum power_supply_conn_type {
+ POWER_SUPPLY_CONN_TYPE_UNKNOWN = 0,
+ POWER_SUPPLY_CONN_TYPE_USB_DCP, /* Dedicated Charging Port */
+ POWER_SUPPLY_CONN_TYPE_USB_CDP, /* Charging Downstream Port */
+ POWER_SUPPLY_CONN_TYPE_USB_ACA, /* Accessory Charger Adapters */
+ POWER_SUPPLY_CONN_TYPE_USB_TYPE_C, /* Type C Port */
+ POWER_SUPPLY_CONN_TYPE_USB_PD, /* Power Delivery Port */
+ POWER_SUPPLY_CONN_TYPE_USB_PD_DRP, /* PD Dual Role Port */
+ POWER_SUPPLY_CONN_TYPE_USB_PD_PPS, /* PD Programmable Power Supply */
+ POWER_SUPPLY_CONN_TYPE_APPLE_BRICK_ID, /* Apple Charging Method */
+};
+
enum power_supply_notifier_events {
PSY_EVENT_PROP_CHANGED,
};
@@ -196,6 +209,8 @@ struct power_supply_config {
struct power_supply_desc {
const char *name;
enum power_supply_type type;
+ enum power_supply_conn_type *conn_types;
+ size_t num_conn_types;
enum power_supply_property *properties;
size_t num_properties;
--
1.9.1
^ permalink raw reply related [flat|nested] 31+ messages in thread
* [PATCH v3 6/7] typec: tcpm: Represent source supply through power_supply class
@ 2017-12-18 12:41 ` Opensource [Adam Thomson]
0 siblings, 0 replies; 31+ messages in thread
From: Adam Thomson @ 2017-12-18 12:41 UTC (permalink / raw)
To: Heikki Krogerus, Guenter Roeck, Greg Kroah-Hartman,
Sebastian Reichel, Hans de Goede, Yueyao Zhu, Rui Miguel Silva
Cc: linux-usb, linux-pm, linux-kernel, support.opensource
This commit adds a power_supply class instance to represent a
PD source's voltage and current properties. This provides an
interface for reading these properties from user-space or other
drivers.
For PPS enabled Sources, this also provides write access to set
the current and voltage and allows for swapping between standard
PDO and PPS APDO.
As this represents a superset of the information provided in the
fusb302 driver, the power_supply instance in that code is removed
as part of this change, so reverting the commit titled
'typec: tcpm: Represent source supply through power_supply class'
Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
---
.../ABI/testing/sysfs-class-power-tcpm-source-psy | 92 ++++++++
drivers/usb/typec/Kconfig | 1 +
drivers/usb/typec/fusb302/Kconfig | 2 +-
drivers/usb/typec/fusb302/fusb302.c | 63 +-----
drivers/usb/typec/tcpm.c | 235 ++++++++++++++++++++-
5 files changed, 330 insertions(+), 63 deletions(-)
create mode 100644 Documentation/ABI/testing/sysfs-class-power-tcpm-source-psy
diff --git a/Documentation/ABI/testing/sysfs-class-power-tcpm-source-psy b/Documentation/ABI/testing/sysfs-class-power-tcpm-source-psy
new file mode 100644
index 0000000..4986cba
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-class-power-tcpm-source-psy
@@ -0,0 +1,92 @@
+What: /sys/class/power_supply/tcpm-source-psy/type
+Date: December 2017
+Contact: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
+Description:
+ This read-only property describes the main type of source supply.
+ Type-C is a USB standard so this property always returns "USB".
+
+What: /sys/class/power_supply/tcpm-source-psy/connected_type
+Date: December 2017
+Contact: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
+Description:
+ This read-only property describes the type of source supply that is
+ connected, if the supply is online. The value is always Type C
+ unless a source has been attached which is identified as USB-PD capable.
+
+ Valid values:
+ - "USB_TYPE_C" : Type C connected supply, not UBS-PD capable
+ (default value)
+ - "USB_PD" : USB-PD capable source supply connected
+ - "USB_PD_PPS" : USB-PD PPS capable source supply connected
+
+What: /sys/class/power_supply/tcpm-source-psy/online
+Date: December 2017
+Contact: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
+Description:
+ This read-write property describes the online state of the source
+ supply. When the value of this property is not 0, and the supply allows
+ it, then it's possible to switch between online states (i.e. 1 -> 2,
+ 2 -> 1)
+
+ Valid values:
+ - 0 : Offline, no source supply attached
+ - 1 : Fixed Online, Type-C or USB-PD capable supply
+ attached, non-configurable current and voltage
+ properties in this state.
+ - 2 : PPS Online, USB-PD PPS feature enabled, 'current_now'
+ and 'voltage_now' properties can be modified in this
+ state. Re-writing of this value again, once already
+ set, will re-request the same configured voltage and
+ current values. This can be used as a keep-alive for
+ the PPS connection.
+ [NOTE: This is value only selectable if
+ 'connected_type' reports a value of "USB_PD_PPS"]
+
+What: /sys/class/power_supply/tcpm-source-psy/voltage_min
+Date: December 2017
+Contact: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
+Description:
+ This read-only property describes the minimum voltage the source supply
+ can provide.
+
+ Value in microvolts.
+
+What: /sys/class/power_supply/tcpm-source-psy/voltage_max
+Date: December 2017
+Contact: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
+Description:
+ This read-only property describes the maximum voltage the source supply
+ can provide.
+
+ Value in microvolts.
+
+What: /sys/class/power_supply/tcpm-source-psy/voltage_now
+Date: December 2017
+Contact: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
+Description:
+ This read-write property describes the voltage the source supply is
+ providing now. This property can only be written to if the source supply
+ is in online state '2' (PPS enabled), otherwise it's read-only
+ information.
+
+ Value in microvolts.
+
+What: /sys/class/power_supply/tcpm-source-psy/current_max
+Date: December 2017
+Contact: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
+Description:
+ This read-only property describes the maximum current the source supply
+ can provide.
+
+ Value in microamps.
+
+What: /sys/class/power_supply/tcpm-source-psy/current_now
+Date: December 2017
+Contact: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
+Description:
+ This read-write property describes the current the source supply can
+ provide now. This property can only be written to if the source supply
+ is in online state '2' (PPS enabled), otherwise it's read-only
+ information.
+
+ Value in microamps.
diff --git a/drivers/usb/typec/Kconfig b/drivers/usb/typec/Kconfig
index bcb2744..1ef606d 100644
--- a/drivers/usb/typec/Kconfig
+++ b/drivers/usb/typec/Kconfig
@@ -48,6 +48,7 @@ if TYPEC
config TYPEC_TCPM
tristate "USB Type-C Port Controller Manager"
depends on USB
+ select POWER_SUPPLY
help
The Type-C Port Controller Manager provides a USB PD and USB Type-C
state machine for use with Type-C Port Controllers.
diff --git a/drivers/usb/typec/fusb302/Kconfig b/drivers/usb/typec/fusb302/Kconfig
index 48a4f2f..fce099f 100644
--- a/drivers/usb/typec/fusb302/Kconfig
+++ b/drivers/usb/typec/fusb302/Kconfig
@@ -1,6 +1,6 @@
config TYPEC_FUSB302
tristate "Fairchild FUSB302 Type-C chip driver"
- depends on I2C && POWER_SUPPLY
+ depends on I2C
help
The Fairchild FUSB302 Type-C chip driver that works with
Type-C Port Controller Manager to provide USB PD and USB
diff --git a/drivers/usb/typec/fusb302/fusb302.c b/drivers/usb/typec/fusb302/fusb302.c
index 9ce4756..82fddc7 100644
--- a/drivers/usb/typec/fusb302/fusb302.c
+++ b/drivers/usb/typec/fusb302/fusb302.c
@@ -18,7 +18,6 @@
#include <linux/of_device.h>
#include <linux/of_gpio.h>
#include <linux/pinctrl/consumer.h>
-#include <linux/power_supply.h>
#include <linux/proc_fs.h>
#include <linux/regulator/consumer.h>
#include <linux/sched/clock.h>
@@ -99,11 +98,6 @@ struct fusb302_chip {
/* lock for sharing chip states */
struct mutex lock;
- /* psy + psy status */
- struct power_supply *psy;
- u32 current_limit;
- u32 supply_voltage;
-
/* chip status */
enum toggling_mode toggling_mode;
enum src_current_status src_current_status;
@@ -872,13 +866,11 @@ static int tcpm_set_vbus(struct tcpc_dev *dev, bool on, bool charge)
chip->vbus_on = on;
fusb302_log(chip, "vbus := %s", on ? "On" : "Off");
}
- if (chip->charge_on == charge) {
+ if (chip->charge_on == charge)
fusb302_log(chip, "charge is already %s",
charge ? "On" : "Off");
- } else {
+ else
chip->charge_on = charge;
- power_supply_changed(chip->psy);
- }
done:
mutex_unlock(&chip->lock);
@@ -894,11 +886,6 @@ static int tcpm_set_current_limit(struct tcpc_dev *dev, u32 max_ma, u32 mv)
fusb302_log(chip, "current limit: %d ma, %d mv (not implemented)",
max_ma, mv);
- chip->supply_voltage = mv;
- chip->current_limit = max_ma;
-
- power_supply_changed(chip->psy);
-
return 0;
}
@@ -1697,43 +1684,6 @@ static irqreturn_t fusb302_irq_intn(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static int fusb302_psy_get_property(struct power_supply *psy,
- enum power_supply_property psp,
- union power_supply_propval *val)
-{
- struct fusb302_chip *chip = power_supply_get_drvdata(psy);
-
- switch (psp) {
- case POWER_SUPPLY_PROP_ONLINE:
- val->intval = chip->charge_on;
- break;
- case POWER_SUPPLY_PROP_VOLTAGE_NOW:
- val->intval = chip->supply_voltage * 1000; /* mV -> µV */
- break;
- case POWER_SUPPLY_PROP_CURRENT_MAX:
- val->intval = chip->current_limit * 1000; /* mA -> µA */
- break;
- default:
- return -ENODATA;
- }
-
- return 0;
-}
-
-static enum power_supply_property fusb302_psy_properties[] = {
- POWER_SUPPLY_PROP_ONLINE,
- POWER_SUPPLY_PROP_VOLTAGE_NOW,
- POWER_SUPPLY_PROP_CURRENT_MAX,
-};
-
-static const struct power_supply_desc fusb302_psy_desc = {
- .name = "fusb302-typec-source",
- .type = POWER_SUPPLY_TYPE_USB_TYPE_C,
- .properties = fusb302_psy_properties,
- .num_properties = ARRAY_SIZE(fusb302_psy_properties),
- .get_property = fusb302_psy_get_property,
-};
-
static int init_gpio(struct fusb302_chip *chip)
{
struct device_node *node;
@@ -1773,7 +1723,6 @@ static int fusb302_probe(struct i2c_client *client,
struct fusb302_chip *chip;
struct i2c_adapter *adapter;
struct device *dev = &client->dev;
- struct power_supply_config cfg = {};
const char *name;
int ret = 0;
u32 v;
@@ -1820,14 +1769,6 @@ static int fusb302_probe(struct i2c_client *client,
return -EPROBE_DEFER;
}
- cfg.drv_data = chip;
- chip->psy = devm_power_supply_register(dev, &fusb302_psy_desc, &cfg);
- if (IS_ERR(chip->psy)) {
- ret = PTR_ERR(chip->psy);
- dev_err(chip->dev, "Error registering power-supply: %d\n", ret);
- return ret;
- }
-
ret = fusb302_debugfs_init(chip);
if (ret < 0)
return ret;
diff --git a/drivers/usb/typec/tcpm.c b/drivers/usb/typec/tcpm.c
index b66d26c..f2bac3d 100644
--- a/drivers/usb/typec/tcpm.c
+++ b/drivers/usb/typec/tcpm.c
@@ -12,6 +12,7 @@
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/mutex.h>
+#include <linux/power_supply.h>
#include <linux/proc_fs.h>
#include <linux/sched/clock.h>
#include <linux/seq_file.h>
@@ -281,6 +282,11 @@ struct tcpm_port {
u32 current_limit;
u32 supply_voltage;
+ /* Used to export TA voltage and current */
+ struct power_supply *psy;
+ struct power_supply_desc psy_desc;
+ enum power_supply_conn_type connected_type;
+
u32 bist_request;
/* PD state for Vendor Defined Messages */
@@ -1893,6 +1899,7 @@ static int tcpm_pd_select_pdo(struct tcpm_port *port, int *sink_pdo,
int ret = -EINVAL;
port->pps_data.supported = false;
+ port->connected_type = POWER_SUPPLY_CONN_TYPE_USB_PD;
/*
* Select the source PDO providing the most power which has a
@@ -1974,8 +1981,11 @@ static int tcpm_pd_select_pdo(struct tcpm_port *port, int *sink_pdo,
}
break;
case PDO_TYPE_APDO:
- if (pdo_apdo_type(pdo) == APDO_TYPE_PPS)
+ if (pdo_apdo_type(pdo) == APDO_TYPE_PPS) {
port->pps_data.supported = true;
+ port->connected_type =
+ POWER_SUPPLY_CONN_TYPE_USB_PD_PPS;
+ }
continue;
default:
tcpm_log(port, "Invalid PDO type, ignoring");
@@ -2459,6 +2469,9 @@ static void tcpm_reset_port(struct tcpm_port *port)
port->try_snk_count = 0;
port->supply_voltage = 0;
port->current_limit = 0;
+ port->connected_type = POWER_SUPPLY_CONN_TYPE_USB_TYPE_C;
+
+ power_supply_changed(port->psy);
}
static void tcpm_detach(struct tcpm_port *port)
@@ -2991,6 +3004,8 @@ static void run_state_machine(struct tcpm_port *port)
tcpm_pps_complete(port, port->pps_status);
+ power_supply_changed(port->psy);
+
break;
/* Accessory states */
@@ -4170,6 +4185,220 @@ static int nr_type_pdos(const u32 *pdo, unsigned int nr_pdo,
return count;
}
+/* Power Supply access to expose source power information */
+enum tcpm_psy_online_states {
+ TCPM_PSY_OFFLINE = 0,
+ TCPM_PSY_FIXED_ONLINE,
+ TCPM_PSY_PROG_ONLINE,
+};
+
+static enum power_supply_property tcpm_psy_props[] = {
+ POWER_SUPPLY_PROP_CONNECTED_TYPE,
+ POWER_SUPPLY_PROP_ONLINE,
+ POWER_SUPPLY_PROP_VOLTAGE_MIN,
+ POWER_SUPPLY_PROP_VOLTAGE_MAX,
+ POWER_SUPPLY_PROP_VOLTAGE_NOW,
+ POWER_SUPPLY_PROP_CURRENT_MAX,
+ POWER_SUPPLY_PROP_CURRENT_NOW,
+};
+
+static int tcpm_psy_get_online(struct tcpm_port *port,
+ union power_supply_propval *val)
+{
+ if (port->vbus_charge) {
+ if (port->pps_data.active)
+ val->intval = TCPM_PSY_PROG_ONLINE;
+ else
+ val->intval = TCPM_PSY_FIXED_ONLINE;
+ } else {
+ val->intval = TCPM_PSY_OFFLINE;
+ }
+
+ return 0;
+}
+
+static int tcpm_psy_get_voltage_min(struct tcpm_port *port,
+ union power_supply_propval *val)
+{
+ if (port->pps_data.active)
+ val->intval = port->pps_data.min_volt * 1000;
+ else
+ val->intval = port->supply_voltage * 1000;
+
+ return 0;
+}
+
+static int tcpm_psy_get_voltage_max(struct tcpm_port *port,
+ union power_supply_propval *val)
+{
+ if (port->pps_data.active)
+ val->intval = port->pps_data.max_volt * 1000;
+ else
+ val->intval = port->supply_voltage * 1000;
+
+ return 0;
+}
+
+static int tcpm_psy_get_voltage_now(struct tcpm_port *port,
+ union power_supply_propval *val)
+{
+ val->intval = port->supply_voltage * 1000;
+
+ return 0;
+}
+
+static int tcpm_psy_get_current_max(struct tcpm_port *port,
+ union power_supply_propval *val)
+{
+ if (port->pps_data.active)
+ val->intval = port->pps_data.max_curr * 1000;
+ else
+ val->intval = port->current_limit * 1000;
+
+ return 0;
+}
+
+static int tcpm_psy_get_current_now(struct tcpm_port *port,
+ union power_supply_propval *val)
+{
+ val->intval = port->current_limit * 1000;
+
+ return 0;
+}
+
+static int tcpm_psy_get_prop(struct power_supply *psy,
+ enum power_supply_property psp,
+ union power_supply_propval *val)
+{
+ struct tcpm_port *port = power_supply_get_drvdata(psy);
+ int ret = 0;
+
+ switch (psp) {
+ case POWER_SUPPLY_PROP_CONNECTED_TYPE:
+ val->intval = port->connected_type;
+ break;
+ case POWER_SUPPLY_PROP_ONLINE:
+ ret = tcpm_psy_get_online(port, val);
+ break;
+ case POWER_SUPPLY_PROP_VOLTAGE_MIN:
+ ret = tcpm_psy_get_voltage_min(port, val);
+ break;
+ case POWER_SUPPLY_PROP_VOLTAGE_MAX:
+ ret = tcpm_psy_get_voltage_max(port, val);
+ break;
+ case POWER_SUPPLY_PROP_VOLTAGE_NOW:
+ ret = tcpm_psy_get_voltage_now(port, val);
+ break;
+ case POWER_SUPPLY_PROP_CURRENT_MAX:
+ ret = tcpm_psy_get_current_max(port, val);
+ break;
+ case POWER_SUPPLY_PROP_CURRENT_NOW:
+ ret = tcpm_psy_get_current_now(port, val);
+ break;
+ default:
+ ret = -EINVAL;
+ break;
+ }
+
+ return ret;
+}
+
+static int tcpm_psy_set_online(struct tcpm_port *port,
+ const union power_supply_propval *val)
+{
+ int ret;
+
+ switch (val->intval) {
+ case TCPM_PSY_FIXED_ONLINE:
+ ret = tcpm_pps_activate(port, false);
+ break;
+ case TCPM_PSY_PROG_ONLINE:
+ ret = tcpm_pps_activate(port, true);
+ break;
+ default:
+ ret = -EINVAL;
+ break;
+ }
+
+ return ret;
+}
+
+static int tcpm_psy_set_prop(struct power_supply *psy,
+ enum power_supply_property psp,
+ const union power_supply_propval *val)
+{
+ struct tcpm_port *port = power_supply_get_drvdata(psy);
+ int ret = 0;
+
+ switch (psp) {
+ case POWER_SUPPLY_PROP_ONLINE:
+ ret = tcpm_psy_set_online(port, val);
+ break;
+ case POWER_SUPPLY_PROP_VOLTAGE_NOW:
+ if ((val->intval < (port->pps_data.min_volt * 1000)) ||
+ (val->intval > (port->pps_data.max_volt * 1000)))
+ ret = -EINVAL;
+ else
+ ret = tcpm_pps_set_out_volt(port, (val->intval / 1000));
+ break;
+ case POWER_SUPPLY_PROP_CURRENT_NOW:
+ if (val->intval > (port->pps_data.max_curr * 1000))
+ ret = -EINVAL;
+ else
+ ret = tcpm_pps_set_op_curr(port, (val->intval / 1000));
+ break;
+ default:
+ ret = -EINVAL;
+ break;
+ }
+
+ return ret;
+}
+
+static int tcpm_psy_prop_writeable(struct power_supply *psy,
+ enum power_supply_property psp)
+{
+ switch (psp) {
+ case POWER_SUPPLY_PROP_ONLINE:
+ case POWER_SUPPLY_PROP_VOLTAGE_NOW:
+ case POWER_SUPPLY_PROP_CURRENT_NOW:
+ return 1;
+ default:
+ return 0;
+ }
+}
+
+static enum power_supply_conn_type tcpm_psy_conn_types[] = {
+ POWER_SUPPLY_CONN_TYPE_USB_TYPE_C,
+ POWER_SUPPLY_CONN_TYPE_USB_PD,
+ POWER_SUPPLY_CONN_TYPE_USB_PD_PPS,
+};
+
+int devm_tcpm_psy_register(struct tcpm_port *port)
+{
+ struct power_supply_config psy_cfg = {};
+
+ psy_cfg.drv_data = port;
+ port->psy_desc.name = "tcpm-source-psy",
+ port->psy_desc.type = POWER_SUPPLY_TYPE_USB,
+ port->psy_desc.conn_types = tcpm_psy_conn_types;
+ port->psy_desc.num_conn_types = ARRAY_SIZE(tcpm_psy_conn_types);
+ port->psy_desc.properties = tcpm_psy_props,
+ port->psy_desc.num_properties = ARRAY_SIZE(tcpm_psy_props),
+ port->psy_desc.get_property = tcpm_psy_get_prop,
+ port->psy_desc.set_property = tcpm_psy_set_prop,
+ port->psy_desc.property_is_writeable = tcpm_psy_prop_writeable,
+
+ port->connected_type = POWER_SUPPLY_CONN_TYPE_USB_TYPE_C;
+
+ port->psy = devm_power_supply_register(port->dev, &port->psy_desc,
+ &psy_cfg);
+ if (IS_ERR(port->psy))
+ return PTR_ERR(port->psy);
+
+ return 0;
+}
+
struct tcpm_port *tcpm_register_port(struct device *dev, struct tcpc_dev *tcpc)
{
struct tcpm_port *port;
@@ -4253,6 +4482,10 @@ struct tcpm_port *tcpm_register_port(struct device *dev, struct tcpc_dev *tcpc)
port->partner_desc.identity = &port->partner_ident;
port->port_type = tcpc->config->type;
+ err = devm_tcpm_psy_register(port);
+ if (err)
+ goto out_destroy_wq;
+
port->typec_port = typec_register_port(port->dev, &port->typec_caps);
if (!port->typec_port) {
err = -ENOMEM;
--
1.9.1
^ permalink raw reply related [flat|nested] 31+ messages in thread
* [v3,6/7] typec: tcpm: Represent source supply through power_supply class
@ 2017-12-18 12:41 ` Opensource [Adam Thomson]
0 siblings, 0 replies; 31+ messages in thread
From: Opensource [Adam Thomson] @ 2017-12-18 12:41 UTC (permalink / raw)
To: Heikki Krogerus, Guenter Roeck, Greg Kroah-Hartman,
Sebastian Reichel, Hans de Goede, Yueyao Zhu, Rui Miguel Silva
Cc: linux-usb, linux-pm, linux-kernel, support.opensource
This commit adds a power_supply class instance to represent a
PD source's voltage and current properties. This provides an
interface for reading these properties from user-space or other
drivers.
For PPS enabled Sources, this also provides write access to set
the current and voltage and allows for swapping between standard
PDO and PPS APDO.
As this represents a superset of the information provided in the
fusb302 driver, the power_supply instance in that code is removed
as part of this change, so reverting the commit titled
'typec: tcpm: Represent source supply through power_supply class'
Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
---
.../ABI/testing/sysfs-class-power-tcpm-source-psy | 92 ++++++++
drivers/usb/typec/Kconfig | 1 +
drivers/usb/typec/fusb302/Kconfig | 2 +-
drivers/usb/typec/fusb302/fusb302.c | 63 +-----
drivers/usb/typec/tcpm.c | 235 ++++++++++++++++++++-
5 files changed, 330 insertions(+), 63 deletions(-)
create mode 100644 Documentation/ABI/testing/sysfs-class-power-tcpm-source-psy
diff --git a/Documentation/ABI/testing/sysfs-class-power-tcpm-source-psy b/Documentation/ABI/testing/sysfs-class-power-tcpm-source-psy
new file mode 100644
index 0000000..4986cba
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-class-power-tcpm-source-psy
@@ -0,0 +1,92 @@
+What: /sys/class/power_supply/tcpm-source-psy/type
+Date: December 2017
+Contact: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
+Description:
+ This read-only property describes the main type of source supply.
+ Type-C is a USB standard so this property always returns "USB".
+
+What: /sys/class/power_supply/tcpm-source-psy/connected_type
+Date: December 2017
+Contact: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
+Description:
+ This read-only property describes the type of source supply that is
+ connected, if the supply is online. The value is always Type C
+ unless a source has been attached which is identified as USB-PD capable.
+
+ Valid values:
+ - "USB_TYPE_C" : Type C connected supply, not UBS-PD capable
+ (default value)
+ - "USB_PD" : USB-PD capable source supply connected
+ - "USB_PD_PPS" : USB-PD PPS capable source supply connected
+
+What: /sys/class/power_supply/tcpm-source-psy/online
+Date: December 2017
+Contact: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
+Description:
+ This read-write property describes the online state of the source
+ supply. When the value of this property is not 0, and the supply allows
+ it, then it's possible to switch between online states (i.e. 1 -> 2,
+ 2 -> 1)
+
+ Valid values:
+ - 0 : Offline, no source supply attached
+ - 1 : Fixed Online, Type-C or USB-PD capable supply
+ attached, non-configurable current and voltage
+ properties in this state.
+ - 2 : PPS Online, USB-PD PPS feature enabled, 'current_now'
+ and 'voltage_now' properties can be modified in this
+ state. Re-writing of this value again, once already
+ set, will re-request the same configured voltage and
+ current values. This can be used as a keep-alive for
+ the PPS connection.
+ [NOTE: This is value only selectable if
+ 'connected_type' reports a value of "USB_PD_PPS"]
+
+What: /sys/class/power_supply/tcpm-source-psy/voltage_min
+Date: December 2017
+Contact: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
+Description:
+ This read-only property describes the minimum voltage the source supply
+ can provide.
+
+ Value in microvolts.
+
+What: /sys/class/power_supply/tcpm-source-psy/voltage_max
+Date: December 2017
+Contact: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
+Description:
+ This read-only property describes the maximum voltage the source supply
+ can provide.
+
+ Value in microvolts.
+
+What: /sys/class/power_supply/tcpm-source-psy/voltage_now
+Date: December 2017
+Contact: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
+Description:
+ This read-write property describes the voltage the source supply is
+ providing now. This property can only be written to if the source supply
+ is in online state '2' (PPS enabled), otherwise it's read-only
+ information.
+
+ Value in microvolts.
+
+What: /sys/class/power_supply/tcpm-source-psy/current_max
+Date: December 2017
+Contact: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
+Description:
+ This read-only property describes the maximum current the source supply
+ can provide.
+
+ Value in microamps.
+
+What: /sys/class/power_supply/tcpm-source-psy/current_now
+Date: December 2017
+Contact: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
+Description:
+ This read-write property describes the current the source supply can
+ provide now. This property can only be written to if the source supply
+ is in online state '2' (PPS enabled), otherwise it's read-only
+ information.
+
+ Value in microamps.
diff --git a/drivers/usb/typec/Kconfig b/drivers/usb/typec/Kconfig
index bcb2744..1ef606d 100644
--- a/drivers/usb/typec/Kconfig
+++ b/drivers/usb/typec/Kconfig
@@ -48,6 +48,7 @@ if TYPEC
config TYPEC_TCPM
tristate "USB Type-C Port Controller Manager"
depends on USB
+ select POWER_SUPPLY
help
The Type-C Port Controller Manager provides a USB PD and USB Type-C
state machine for use with Type-C Port Controllers.
diff --git a/drivers/usb/typec/fusb302/Kconfig b/drivers/usb/typec/fusb302/Kconfig
index 48a4f2f..fce099f 100644
--- a/drivers/usb/typec/fusb302/Kconfig
+++ b/drivers/usb/typec/fusb302/Kconfig
@@ -1,6 +1,6 @@
config TYPEC_FUSB302
tristate "Fairchild FUSB302 Type-C chip driver"
- depends on I2C && POWER_SUPPLY
+ depends on I2C
help
The Fairchild FUSB302 Type-C chip driver that works with
Type-C Port Controller Manager to provide USB PD and USB
diff --git a/drivers/usb/typec/fusb302/fusb302.c b/drivers/usb/typec/fusb302/fusb302.c
index 9ce4756..82fddc7 100644
--- a/drivers/usb/typec/fusb302/fusb302.c
+++ b/drivers/usb/typec/fusb302/fusb302.c
@@ -18,7 +18,6 @@
#include <linux/of_device.h>
#include <linux/of_gpio.h>
#include <linux/pinctrl/consumer.h>
-#include <linux/power_supply.h>
#include <linux/proc_fs.h>
#include <linux/regulator/consumer.h>
#include <linux/sched/clock.h>
@@ -99,11 +98,6 @@ struct fusb302_chip {
/* lock for sharing chip states */
struct mutex lock;
- /* psy + psy status */
- struct power_supply *psy;
- u32 current_limit;
- u32 supply_voltage;
-
/* chip status */
enum toggling_mode toggling_mode;
enum src_current_status src_current_status;
@@ -872,13 +866,11 @@ static int tcpm_set_vbus(struct tcpc_dev *dev, bool on, bool charge)
chip->vbus_on = on;
fusb302_log(chip, "vbus := %s", on ? "On" : "Off");
}
- if (chip->charge_on == charge) {
+ if (chip->charge_on == charge)
fusb302_log(chip, "charge is already %s",
charge ? "On" : "Off");
- } else {
+ else
chip->charge_on = charge;
- power_supply_changed(chip->psy);
- }
done:
mutex_unlock(&chip->lock);
@@ -894,11 +886,6 @@ static int tcpm_set_current_limit(struct tcpc_dev *dev, u32 max_ma, u32 mv)
fusb302_log(chip, "current limit: %d ma, %d mv (not implemented)",
max_ma, mv);
- chip->supply_voltage = mv;
- chip->current_limit = max_ma;
-
- power_supply_changed(chip->psy);
-
return 0;
}
@@ -1697,43 +1684,6 @@ static irqreturn_t fusb302_irq_intn(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static int fusb302_psy_get_property(struct power_supply *psy,
- enum power_supply_property psp,
- union power_supply_propval *val)
-{
- struct fusb302_chip *chip = power_supply_get_drvdata(psy);
-
- switch (psp) {
- case POWER_SUPPLY_PROP_ONLINE:
- val->intval = chip->charge_on;
- break;
- case POWER_SUPPLY_PROP_VOLTAGE_NOW:
- val->intval = chip->supply_voltage * 1000; /* mV -> µV */
- break;
- case POWER_SUPPLY_PROP_CURRENT_MAX:
- val->intval = chip->current_limit * 1000; /* mA -> µA */
- break;
- default:
- return -ENODATA;
- }
-
- return 0;
-}
-
-static enum power_supply_property fusb302_psy_properties[] = {
- POWER_SUPPLY_PROP_ONLINE,
- POWER_SUPPLY_PROP_VOLTAGE_NOW,
- POWER_SUPPLY_PROP_CURRENT_MAX,
-};
-
-static const struct power_supply_desc fusb302_psy_desc = {
- .name = "fusb302-typec-source",
- .type = POWER_SUPPLY_TYPE_USB_TYPE_C,
- .properties = fusb302_psy_properties,
- .num_properties = ARRAY_SIZE(fusb302_psy_properties),
- .get_property = fusb302_psy_get_property,
-};
-
static int init_gpio(struct fusb302_chip *chip)
{
struct device_node *node;
@@ -1773,7 +1723,6 @@ static int fusb302_probe(struct i2c_client *client,
struct fusb302_chip *chip;
struct i2c_adapter *adapter;
struct device *dev = &client->dev;
- struct power_supply_config cfg = {};
const char *name;
int ret = 0;
u32 v;
@@ -1820,14 +1769,6 @@ static int fusb302_probe(struct i2c_client *client,
return -EPROBE_DEFER;
}
- cfg.drv_data = chip;
- chip->psy = devm_power_supply_register(dev, &fusb302_psy_desc, &cfg);
- if (IS_ERR(chip->psy)) {
- ret = PTR_ERR(chip->psy);
- dev_err(chip->dev, "Error registering power-supply: %d\n", ret);
- return ret;
- }
-
ret = fusb302_debugfs_init(chip);
if (ret < 0)
return ret;
diff --git a/drivers/usb/typec/tcpm.c b/drivers/usb/typec/tcpm.c
index b66d26c..f2bac3d 100644
--- a/drivers/usb/typec/tcpm.c
+++ b/drivers/usb/typec/tcpm.c
@@ -12,6 +12,7 @@
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/mutex.h>
+#include <linux/power_supply.h>
#include <linux/proc_fs.h>
#include <linux/sched/clock.h>
#include <linux/seq_file.h>
@@ -281,6 +282,11 @@ struct tcpm_port {
u32 current_limit;
u32 supply_voltage;
+ /* Used to export TA voltage and current */
+ struct power_supply *psy;
+ struct power_supply_desc psy_desc;
+ enum power_supply_conn_type connected_type;
+
u32 bist_request;
/* PD state for Vendor Defined Messages */
@@ -1893,6 +1899,7 @@ static int tcpm_pd_select_pdo(struct tcpm_port *port, int *sink_pdo,
int ret = -EINVAL;
port->pps_data.supported = false;
+ port->connected_type = POWER_SUPPLY_CONN_TYPE_USB_PD;
/*
* Select the source PDO providing the most power which has a
@@ -1974,8 +1981,11 @@ static int tcpm_pd_select_pdo(struct tcpm_port *port, int *sink_pdo,
}
break;
case PDO_TYPE_APDO:
- if (pdo_apdo_type(pdo) == APDO_TYPE_PPS)
+ if (pdo_apdo_type(pdo) == APDO_TYPE_PPS) {
port->pps_data.supported = true;
+ port->connected_type =
+ POWER_SUPPLY_CONN_TYPE_USB_PD_PPS;
+ }
continue;
default:
tcpm_log(port, "Invalid PDO type, ignoring");
@@ -2459,6 +2469,9 @@ static void tcpm_reset_port(struct tcpm_port *port)
port->try_snk_count = 0;
port->supply_voltage = 0;
port->current_limit = 0;
+ port->connected_type = POWER_SUPPLY_CONN_TYPE_USB_TYPE_C;
+
+ power_supply_changed(port->psy);
}
static void tcpm_detach(struct tcpm_port *port)
@@ -2991,6 +3004,8 @@ static void run_state_machine(struct tcpm_port *port)
tcpm_pps_complete(port, port->pps_status);
+ power_supply_changed(port->psy);
+
break;
/* Accessory states */
@@ -4170,6 +4185,220 @@ static int nr_type_pdos(const u32 *pdo, unsigned int nr_pdo,
return count;
}
+/* Power Supply access to expose source power information */
+enum tcpm_psy_online_states {
+ TCPM_PSY_OFFLINE = 0,
+ TCPM_PSY_FIXED_ONLINE,
+ TCPM_PSY_PROG_ONLINE,
+};
+
+static enum power_supply_property tcpm_psy_props[] = {
+ POWER_SUPPLY_PROP_CONNECTED_TYPE,
+ POWER_SUPPLY_PROP_ONLINE,
+ POWER_SUPPLY_PROP_VOLTAGE_MIN,
+ POWER_SUPPLY_PROP_VOLTAGE_MAX,
+ POWER_SUPPLY_PROP_VOLTAGE_NOW,
+ POWER_SUPPLY_PROP_CURRENT_MAX,
+ POWER_SUPPLY_PROP_CURRENT_NOW,
+};
+
+static int tcpm_psy_get_online(struct tcpm_port *port,
+ union power_supply_propval *val)
+{
+ if (port->vbus_charge) {
+ if (port->pps_data.active)
+ val->intval = TCPM_PSY_PROG_ONLINE;
+ else
+ val->intval = TCPM_PSY_FIXED_ONLINE;
+ } else {
+ val->intval = TCPM_PSY_OFFLINE;
+ }
+
+ return 0;
+}
+
+static int tcpm_psy_get_voltage_min(struct tcpm_port *port,
+ union power_supply_propval *val)
+{
+ if (port->pps_data.active)
+ val->intval = port->pps_data.min_volt * 1000;
+ else
+ val->intval = port->supply_voltage * 1000;
+
+ return 0;
+}
+
+static int tcpm_psy_get_voltage_max(struct tcpm_port *port,
+ union power_supply_propval *val)
+{
+ if (port->pps_data.active)
+ val->intval = port->pps_data.max_volt * 1000;
+ else
+ val->intval = port->supply_voltage * 1000;
+
+ return 0;
+}
+
+static int tcpm_psy_get_voltage_now(struct tcpm_port *port,
+ union power_supply_propval *val)
+{
+ val->intval = port->supply_voltage * 1000;
+
+ return 0;
+}
+
+static int tcpm_psy_get_current_max(struct tcpm_port *port,
+ union power_supply_propval *val)
+{
+ if (port->pps_data.active)
+ val->intval = port->pps_data.max_curr * 1000;
+ else
+ val->intval = port->current_limit * 1000;
+
+ return 0;
+}
+
+static int tcpm_psy_get_current_now(struct tcpm_port *port,
+ union power_supply_propval *val)
+{
+ val->intval = port->current_limit * 1000;
+
+ return 0;
+}
+
+static int tcpm_psy_get_prop(struct power_supply *psy,
+ enum power_supply_property psp,
+ union power_supply_propval *val)
+{
+ struct tcpm_port *port = power_supply_get_drvdata(psy);
+ int ret = 0;
+
+ switch (psp) {
+ case POWER_SUPPLY_PROP_CONNECTED_TYPE:
+ val->intval = port->connected_type;
+ break;
+ case POWER_SUPPLY_PROP_ONLINE:
+ ret = tcpm_psy_get_online(port, val);
+ break;
+ case POWER_SUPPLY_PROP_VOLTAGE_MIN:
+ ret = tcpm_psy_get_voltage_min(port, val);
+ break;
+ case POWER_SUPPLY_PROP_VOLTAGE_MAX:
+ ret = tcpm_psy_get_voltage_max(port, val);
+ break;
+ case POWER_SUPPLY_PROP_VOLTAGE_NOW:
+ ret = tcpm_psy_get_voltage_now(port, val);
+ break;
+ case POWER_SUPPLY_PROP_CURRENT_MAX:
+ ret = tcpm_psy_get_current_max(port, val);
+ break;
+ case POWER_SUPPLY_PROP_CURRENT_NOW:
+ ret = tcpm_psy_get_current_now(port, val);
+ break;
+ default:
+ ret = -EINVAL;
+ break;
+ }
+
+ return ret;
+}
+
+static int tcpm_psy_set_online(struct tcpm_port *port,
+ const union power_supply_propval *val)
+{
+ int ret;
+
+ switch (val->intval) {
+ case TCPM_PSY_FIXED_ONLINE:
+ ret = tcpm_pps_activate(port, false);
+ break;
+ case TCPM_PSY_PROG_ONLINE:
+ ret = tcpm_pps_activate(port, true);
+ break;
+ default:
+ ret = -EINVAL;
+ break;
+ }
+
+ return ret;
+}
+
+static int tcpm_psy_set_prop(struct power_supply *psy,
+ enum power_supply_property psp,
+ const union power_supply_propval *val)
+{
+ struct tcpm_port *port = power_supply_get_drvdata(psy);
+ int ret = 0;
+
+ switch (psp) {
+ case POWER_SUPPLY_PROP_ONLINE:
+ ret = tcpm_psy_set_online(port, val);
+ break;
+ case POWER_SUPPLY_PROP_VOLTAGE_NOW:
+ if ((val->intval < (port->pps_data.min_volt * 1000)) ||
+ (val->intval > (port->pps_data.max_volt * 1000)))
+ ret = -EINVAL;
+ else
+ ret = tcpm_pps_set_out_volt(port, (val->intval / 1000));
+ break;
+ case POWER_SUPPLY_PROP_CURRENT_NOW:
+ if (val->intval > (port->pps_data.max_curr * 1000))
+ ret = -EINVAL;
+ else
+ ret = tcpm_pps_set_op_curr(port, (val->intval / 1000));
+ break;
+ default:
+ ret = -EINVAL;
+ break;
+ }
+
+ return ret;
+}
+
+static int tcpm_psy_prop_writeable(struct power_supply *psy,
+ enum power_supply_property psp)
+{
+ switch (psp) {
+ case POWER_SUPPLY_PROP_ONLINE:
+ case POWER_SUPPLY_PROP_VOLTAGE_NOW:
+ case POWER_SUPPLY_PROP_CURRENT_NOW:
+ return 1;
+ default:
+ return 0;
+ }
+}
+
+static enum power_supply_conn_type tcpm_psy_conn_types[] = {
+ POWER_SUPPLY_CONN_TYPE_USB_TYPE_C,
+ POWER_SUPPLY_CONN_TYPE_USB_PD,
+ POWER_SUPPLY_CONN_TYPE_USB_PD_PPS,
+};
+
+int devm_tcpm_psy_register(struct tcpm_port *port)
+{
+ struct power_supply_config psy_cfg = {};
+
+ psy_cfg.drv_data = port;
+ port->psy_desc.name = "tcpm-source-psy",
+ port->psy_desc.type = POWER_SUPPLY_TYPE_USB,
+ port->psy_desc.conn_types = tcpm_psy_conn_types;
+ port->psy_desc.num_conn_types = ARRAY_SIZE(tcpm_psy_conn_types);
+ port->psy_desc.properties = tcpm_psy_props,
+ port->psy_desc.num_properties = ARRAY_SIZE(tcpm_psy_props),
+ port->psy_desc.get_property = tcpm_psy_get_prop,
+ port->psy_desc.set_property = tcpm_psy_set_prop,
+ port->psy_desc.property_is_writeable = tcpm_psy_prop_writeable,
+
+ port->connected_type = POWER_SUPPLY_CONN_TYPE_USB_TYPE_C;
+
+ port->psy = devm_power_supply_register(port->dev, &port->psy_desc,
+ &psy_cfg);
+ if (IS_ERR(port->psy))
+ return PTR_ERR(port->psy);
+
+ return 0;
+}
+
struct tcpm_port *tcpm_register_port(struct device *dev, struct tcpc_dev *tcpc)
{
struct tcpm_port *port;
@@ -4253,6 +4482,10 @@ struct tcpm_port *tcpm_register_port(struct device *dev, struct tcpc_dev *tcpc)
port->partner_desc.identity = &port->partner_ident;
port->port_type = tcpc->config->type;
+ err = devm_tcpm_psy_register(port);
+ if (err)
+ goto out_destroy_wq;
+
port->typec_port = typec_register_port(port->dev, &port->typec_caps);
if (!port->typec_port) {
err = -ENOMEM;
^ permalink raw reply related [flat|nested] 31+ messages in thread
* [PATCH v3 6/7] typec: tcpm: Represent source supply through power_supply class
@ 2017-12-18 12:41 ` Opensource [Adam Thomson]
0 siblings, 0 replies; 31+ messages in thread
From: Adam Thomson @ 2017-12-18 12:41 UTC (permalink / raw)
To: Heikki Krogerus, Guenter Roeck, Greg Kroah-Hartman,
Sebastian Reichel, Hans de Goede, Yueyao Zhu, Rui Miguel Silva
Cc: linux-usb, linux-pm, linux-kernel, support.opensource
This commit adds a power_supply class instance to represent a
PD source's voltage and current properties. This provides an
interface for reading these properties from user-space or other
drivers.
For PPS enabled Sources, this also provides write access to set
the current and voltage and allows for swapping between standard
PDO and PPS APDO.
As this represents a superset of the information provided in the
fusb302 driver, the power_supply instance in that code is removed
as part of this change, so reverting the commit titled
'typec: tcpm: Represent source supply through power_supply class'
Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
---
.../ABI/testing/sysfs-class-power-tcpm-source-psy | 92 ++++++++
drivers/usb/typec/Kconfig | 1 +
drivers/usb/typec/fusb302/Kconfig | 2 +-
drivers/usb/typec/fusb302/fusb302.c | 63 +-----
drivers/usb/typec/tcpm.c | 235 ++++++++++++++++++++-
5 files changed, 330 insertions(+), 63 deletions(-)
create mode 100644 Documentation/ABI/testing/sysfs-class-power-tcpm-source-psy
diff --git a/Documentation/ABI/testing/sysfs-class-power-tcpm-source-psy b/Documentation/ABI/testing/sysfs-class-power-tcpm-source-psy
new file mode 100644
index 0000000..4986cba
--- /dev/null
+++ b/Documentation/ABI/testing/sysfs-class-power-tcpm-source-psy
@@ -0,0 +1,92 @@
+What: /sys/class/power_supply/tcpm-source-psy/type
+Date: December 2017
+Contact: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
+Description:
+ This read-only property describes the main type of source supply.
+ Type-C is a USB standard so this property always returns "USB".
+
+What: /sys/class/power_supply/tcpm-source-psy/connected_type
+Date: December 2017
+Contact: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
+Description:
+ This read-only property describes the type of source supply that is
+ connected, if the supply is online. The value is always Type C
+ unless a source has been attached which is identified as USB-PD capable.
+
+ Valid values:
+ - "USB_TYPE_C" : Type C connected supply, not UBS-PD capable
+ (default value)
+ - "USB_PD" : USB-PD capable source supply connected
+ - "USB_PD_PPS" : USB-PD PPS capable source supply connected
+
+What: /sys/class/power_supply/tcpm-source-psy/online
+Date: December 2017
+Contact: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
+Description:
+ This read-write property describes the online state of the source
+ supply. When the value of this property is not 0, and the supply allows
+ it, then it's possible to switch between online states (i.e. 1 -> 2,
+ 2 -> 1)
+
+ Valid values:
+ - 0 : Offline, no source supply attached
+ - 1 : Fixed Online, Type-C or USB-PD capable supply
+ attached, non-configurable current and voltage
+ properties in this state.
+ - 2 : PPS Online, USB-PD PPS feature enabled, 'current_now'
+ and 'voltage_now' properties can be modified in this
+ state. Re-writing of this value again, once already
+ set, will re-request the same configured voltage and
+ current values. This can be used as a keep-alive for
+ the PPS connection.
+ [NOTE: This is value only selectable if
+ 'connected_type' reports a value of "USB_PD_PPS"]
+
+What: /sys/class/power_supply/tcpm-source-psy/voltage_min
+Date: December 2017
+Contact: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
+Description:
+ This read-only property describes the minimum voltage the source supply
+ can provide.
+
+ Value in microvolts.
+
+What: /sys/class/power_supply/tcpm-source-psy/voltage_max
+Date: December 2017
+Contact: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
+Description:
+ This read-only property describes the maximum voltage the source supply
+ can provide.
+
+ Value in microvolts.
+
+What: /sys/class/power_supply/tcpm-source-psy/voltage_now
+Date: December 2017
+Contact: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
+Description:
+ This read-write property describes the voltage the source supply is
+ providing now. This property can only be written to if the source supply
+ is in online state '2' (PPS enabled), otherwise it's read-only
+ information.
+
+ Value in microvolts.
+
+What: /sys/class/power_supply/tcpm-source-psy/current_max
+Date: December 2017
+Contact: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
+Description:
+ This read-only property describes the maximum current the source supply
+ can provide.
+
+ Value in microamps.
+
+What: /sys/class/power_supply/tcpm-source-psy/current_now
+Date: December 2017
+Contact: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
+Description:
+ This read-write property describes the current the source supply can
+ provide now. This property can only be written to if the source supply
+ is in online state '2' (PPS enabled), otherwise it's read-only
+ information.
+
+ Value in microamps.
diff --git a/drivers/usb/typec/Kconfig b/drivers/usb/typec/Kconfig
index bcb2744..1ef606d 100644
--- a/drivers/usb/typec/Kconfig
+++ b/drivers/usb/typec/Kconfig
@@ -48,6 +48,7 @@ if TYPEC
config TYPEC_TCPM
tristate "USB Type-C Port Controller Manager"
depends on USB
+ select POWER_SUPPLY
help
The Type-C Port Controller Manager provides a USB PD and USB Type-C
state machine for use with Type-C Port Controllers.
diff --git a/drivers/usb/typec/fusb302/Kconfig b/drivers/usb/typec/fusb302/Kconfig
index 48a4f2f..fce099f 100644
--- a/drivers/usb/typec/fusb302/Kconfig
+++ b/drivers/usb/typec/fusb302/Kconfig
@@ -1,6 +1,6 @@
config TYPEC_FUSB302
tristate "Fairchild FUSB302 Type-C chip driver"
- depends on I2C && POWER_SUPPLY
+ depends on I2C
help
The Fairchild FUSB302 Type-C chip driver that works with
Type-C Port Controller Manager to provide USB PD and USB
diff --git a/drivers/usb/typec/fusb302/fusb302.c b/drivers/usb/typec/fusb302/fusb302.c
index 9ce4756..82fddc7 100644
--- a/drivers/usb/typec/fusb302/fusb302.c
+++ b/drivers/usb/typec/fusb302/fusb302.c
@@ -18,7 +18,6 @@
#include <linux/of_device.h>
#include <linux/of_gpio.h>
#include <linux/pinctrl/consumer.h>
-#include <linux/power_supply.h>
#include <linux/proc_fs.h>
#include <linux/regulator/consumer.h>
#include <linux/sched/clock.h>
@@ -99,11 +98,6 @@ struct fusb302_chip {
/* lock for sharing chip states */
struct mutex lock;
- /* psy + psy status */
- struct power_supply *psy;
- u32 current_limit;
- u32 supply_voltage;
-
/* chip status */
enum toggling_mode toggling_mode;
enum src_current_status src_current_status;
@@ -872,13 +866,11 @@ static int tcpm_set_vbus(struct tcpc_dev *dev, bool on, bool charge)
chip->vbus_on = on;
fusb302_log(chip, "vbus := %s", on ? "On" : "Off");
}
- if (chip->charge_on == charge) {
+ if (chip->charge_on == charge)
fusb302_log(chip, "charge is already %s",
charge ? "On" : "Off");
- } else {
+ else
chip->charge_on = charge;
- power_supply_changed(chip->psy);
- }
done:
mutex_unlock(&chip->lock);
@@ -894,11 +886,6 @@ static int tcpm_set_current_limit(struct tcpc_dev *dev, u32 max_ma, u32 mv)
fusb302_log(chip, "current limit: %d ma, %d mv (not implemented)",
max_ma, mv);
- chip->supply_voltage = mv;
- chip->current_limit = max_ma;
-
- power_supply_changed(chip->psy);
-
return 0;
}
@@ -1697,43 +1684,6 @@ static irqreturn_t fusb302_irq_intn(int irq, void *dev_id)
return IRQ_HANDLED;
}
-static int fusb302_psy_get_property(struct power_supply *psy,
- enum power_supply_property psp,
- union power_supply_propval *val)
-{
- struct fusb302_chip *chip = power_supply_get_drvdata(psy);
-
- switch (psp) {
- case POWER_SUPPLY_PROP_ONLINE:
- val->intval = chip->charge_on;
- break;
- case POWER_SUPPLY_PROP_VOLTAGE_NOW:
- val->intval = chip->supply_voltage * 1000; /* mV -> µV */
- break;
- case POWER_SUPPLY_PROP_CURRENT_MAX:
- val->intval = chip->current_limit * 1000; /* mA -> µA */
- break;
- default:
- return -ENODATA;
- }
-
- return 0;
-}
-
-static enum power_supply_property fusb302_psy_properties[] = {
- POWER_SUPPLY_PROP_ONLINE,
- POWER_SUPPLY_PROP_VOLTAGE_NOW,
- POWER_SUPPLY_PROP_CURRENT_MAX,
-};
-
-static const struct power_supply_desc fusb302_psy_desc = {
- .name = "fusb302-typec-source",
- .type = POWER_SUPPLY_TYPE_USB_TYPE_C,
- .properties = fusb302_psy_properties,
- .num_properties = ARRAY_SIZE(fusb302_psy_properties),
- .get_property = fusb302_psy_get_property,
-};
-
static int init_gpio(struct fusb302_chip *chip)
{
struct device_node *node;
@@ -1773,7 +1723,6 @@ static int fusb302_probe(struct i2c_client *client,
struct fusb302_chip *chip;
struct i2c_adapter *adapter;
struct device *dev = &client->dev;
- struct power_supply_config cfg = {};
const char *name;
int ret = 0;
u32 v;
@@ -1820,14 +1769,6 @@ static int fusb302_probe(struct i2c_client *client,
return -EPROBE_DEFER;
}
- cfg.drv_data = chip;
- chip->psy = devm_power_supply_register(dev, &fusb302_psy_desc, &cfg);
- if (IS_ERR(chip->psy)) {
- ret = PTR_ERR(chip->psy);
- dev_err(chip->dev, "Error registering power-supply: %d\n", ret);
- return ret;
- }
-
ret = fusb302_debugfs_init(chip);
if (ret < 0)
return ret;
diff --git a/drivers/usb/typec/tcpm.c b/drivers/usb/typec/tcpm.c
index b66d26c..f2bac3d 100644
--- a/drivers/usb/typec/tcpm.c
+++ b/drivers/usb/typec/tcpm.c
@@ -12,6 +12,7 @@
#include <linux/kernel.h>
#include <linux/module.h>
#include <linux/mutex.h>
+#include <linux/power_supply.h>
#include <linux/proc_fs.h>
#include <linux/sched/clock.h>
#include <linux/seq_file.h>
@@ -281,6 +282,11 @@ struct tcpm_port {
u32 current_limit;
u32 supply_voltage;
+ /* Used to export TA voltage and current */
+ struct power_supply *psy;
+ struct power_supply_desc psy_desc;
+ enum power_supply_conn_type connected_type;
+
u32 bist_request;
/* PD state for Vendor Defined Messages */
@@ -1893,6 +1899,7 @@ static int tcpm_pd_select_pdo(struct tcpm_port *port, int *sink_pdo,
int ret = -EINVAL;
port->pps_data.supported = false;
+ port->connected_type = POWER_SUPPLY_CONN_TYPE_USB_PD;
/*
* Select the source PDO providing the most power which has a
@@ -1974,8 +1981,11 @@ static int tcpm_pd_select_pdo(struct tcpm_port *port, int *sink_pdo,
}
break;
case PDO_TYPE_APDO:
- if (pdo_apdo_type(pdo) == APDO_TYPE_PPS)
+ if (pdo_apdo_type(pdo) == APDO_TYPE_PPS) {
port->pps_data.supported = true;
+ port->connected_type =
+ POWER_SUPPLY_CONN_TYPE_USB_PD_PPS;
+ }
continue;
default:
tcpm_log(port, "Invalid PDO type, ignoring");
@@ -2459,6 +2469,9 @@ static void tcpm_reset_port(struct tcpm_port *port)
port->try_snk_count = 0;
port->supply_voltage = 0;
port->current_limit = 0;
+ port->connected_type = POWER_SUPPLY_CONN_TYPE_USB_TYPE_C;
+
+ power_supply_changed(port->psy);
}
static void tcpm_detach(struct tcpm_port *port)
@@ -2991,6 +3004,8 @@ static void run_state_machine(struct tcpm_port *port)
tcpm_pps_complete(port, port->pps_status);
+ power_supply_changed(port->psy);
+
break;
/* Accessory states */
@@ -4170,6 +4185,220 @@ static int nr_type_pdos(const u32 *pdo, unsigned int nr_pdo,
return count;
}
+/* Power Supply access to expose source power information */
+enum tcpm_psy_online_states {
+ TCPM_PSY_OFFLINE = 0,
+ TCPM_PSY_FIXED_ONLINE,
+ TCPM_PSY_PROG_ONLINE,
+};
+
+static enum power_supply_property tcpm_psy_props[] = {
+ POWER_SUPPLY_PROP_CONNECTED_TYPE,
+ POWER_SUPPLY_PROP_ONLINE,
+ POWER_SUPPLY_PROP_VOLTAGE_MIN,
+ POWER_SUPPLY_PROP_VOLTAGE_MAX,
+ POWER_SUPPLY_PROP_VOLTAGE_NOW,
+ POWER_SUPPLY_PROP_CURRENT_MAX,
+ POWER_SUPPLY_PROP_CURRENT_NOW,
+};
+
+static int tcpm_psy_get_online(struct tcpm_port *port,
+ union power_supply_propval *val)
+{
+ if (port->vbus_charge) {
+ if (port->pps_data.active)
+ val->intval = TCPM_PSY_PROG_ONLINE;
+ else
+ val->intval = TCPM_PSY_FIXED_ONLINE;
+ } else {
+ val->intval = TCPM_PSY_OFFLINE;
+ }
+
+ return 0;
+}
+
+static int tcpm_psy_get_voltage_min(struct tcpm_port *port,
+ union power_supply_propval *val)
+{
+ if (port->pps_data.active)
+ val->intval = port->pps_data.min_volt * 1000;
+ else
+ val->intval = port->supply_voltage * 1000;
+
+ return 0;
+}
+
+static int tcpm_psy_get_voltage_max(struct tcpm_port *port,
+ union power_supply_propval *val)
+{
+ if (port->pps_data.active)
+ val->intval = port->pps_data.max_volt * 1000;
+ else
+ val->intval = port->supply_voltage * 1000;
+
+ return 0;
+}
+
+static int tcpm_psy_get_voltage_now(struct tcpm_port *port,
+ union power_supply_propval *val)
+{
+ val->intval = port->supply_voltage * 1000;
+
+ return 0;
+}
+
+static int tcpm_psy_get_current_max(struct tcpm_port *port,
+ union power_supply_propval *val)
+{
+ if (port->pps_data.active)
+ val->intval = port->pps_data.max_curr * 1000;
+ else
+ val->intval = port->current_limit * 1000;
+
+ return 0;
+}
+
+static int tcpm_psy_get_current_now(struct tcpm_port *port,
+ union power_supply_propval *val)
+{
+ val->intval = port->current_limit * 1000;
+
+ return 0;
+}
+
+static int tcpm_psy_get_prop(struct power_supply *psy,
+ enum power_supply_property psp,
+ union power_supply_propval *val)
+{
+ struct tcpm_port *port = power_supply_get_drvdata(psy);
+ int ret = 0;
+
+ switch (psp) {
+ case POWER_SUPPLY_PROP_CONNECTED_TYPE:
+ val->intval = port->connected_type;
+ break;
+ case POWER_SUPPLY_PROP_ONLINE:
+ ret = tcpm_psy_get_online(port, val);
+ break;
+ case POWER_SUPPLY_PROP_VOLTAGE_MIN:
+ ret = tcpm_psy_get_voltage_min(port, val);
+ break;
+ case POWER_SUPPLY_PROP_VOLTAGE_MAX:
+ ret = tcpm_psy_get_voltage_max(port, val);
+ break;
+ case POWER_SUPPLY_PROP_VOLTAGE_NOW:
+ ret = tcpm_psy_get_voltage_now(port, val);
+ break;
+ case POWER_SUPPLY_PROP_CURRENT_MAX:
+ ret = tcpm_psy_get_current_max(port, val);
+ break;
+ case POWER_SUPPLY_PROP_CURRENT_NOW:
+ ret = tcpm_psy_get_current_now(port, val);
+ break;
+ default:
+ ret = -EINVAL;
+ break;
+ }
+
+ return ret;
+}
+
+static int tcpm_psy_set_online(struct tcpm_port *port,
+ const union power_supply_propval *val)
+{
+ int ret;
+
+ switch (val->intval) {
+ case TCPM_PSY_FIXED_ONLINE:
+ ret = tcpm_pps_activate(port, false);
+ break;
+ case TCPM_PSY_PROG_ONLINE:
+ ret = tcpm_pps_activate(port, true);
+ break;
+ default:
+ ret = -EINVAL;
+ break;
+ }
+
+ return ret;
+}
+
+static int tcpm_psy_set_prop(struct power_supply *psy,
+ enum power_supply_property psp,
+ const union power_supply_propval *val)
+{
+ struct tcpm_port *port = power_supply_get_drvdata(psy);
+ int ret = 0;
+
+ switch (psp) {
+ case POWER_SUPPLY_PROP_ONLINE:
+ ret = tcpm_psy_set_online(port, val);
+ break;
+ case POWER_SUPPLY_PROP_VOLTAGE_NOW:
+ if ((val->intval < (port->pps_data.min_volt * 1000)) ||
+ (val->intval > (port->pps_data.max_volt * 1000)))
+ ret = -EINVAL;
+ else
+ ret = tcpm_pps_set_out_volt(port, (val->intval / 1000));
+ break;
+ case POWER_SUPPLY_PROP_CURRENT_NOW:
+ if (val->intval > (port->pps_data.max_curr * 1000))
+ ret = -EINVAL;
+ else
+ ret = tcpm_pps_set_op_curr(port, (val->intval / 1000));
+ break;
+ default:
+ ret = -EINVAL;
+ break;
+ }
+
+ return ret;
+}
+
+static int tcpm_psy_prop_writeable(struct power_supply *psy,
+ enum power_supply_property psp)
+{
+ switch (psp) {
+ case POWER_SUPPLY_PROP_ONLINE:
+ case POWER_SUPPLY_PROP_VOLTAGE_NOW:
+ case POWER_SUPPLY_PROP_CURRENT_NOW:
+ return 1;
+ default:
+ return 0;
+ }
+}
+
+static enum power_supply_conn_type tcpm_psy_conn_types[] = {
+ POWER_SUPPLY_CONN_TYPE_USB_TYPE_C,
+ POWER_SUPPLY_CONN_TYPE_USB_PD,
+ POWER_SUPPLY_CONN_TYPE_USB_PD_PPS,
+};
+
+int devm_tcpm_psy_register(struct tcpm_port *port)
+{
+ struct power_supply_config psy_cfg = {};
+
+ psy_cfg.drv_data = port;
+ port->psy_desc.name = "tcpm-source-psy",
+ port->psy_desc.type = POWER_SUPPLY_TYPE_USB,
+ port->psy_desc.conn_types = tcpm_psy_conn_types;
+ port->psy_desc.num_conn_types = ARRAY_SIZE(tcpm_psy_conn_types);
+ port->psy_desc.properties = tcpm_psy_props,
+ port->psy_desc.num_properties = ARRAY_SIZE(tcpm_psy_props),
+ port->psy_desc.get_property = tcpm_psy_get_prop,
+ port->psy_desc.set_property = tcpm_psy_set_prop,
+ port->psy_desc.property_is_writeable = tcpm_psy_prop_writeable,
+
+ port->connected_type = POWER_SUPPLY_CONN_TYPE_USB_TYPE_C;
+
+ port->psy = devm_power_supply_register(port->dev, &port->psy_desc,
+ &psy_cfg);
+ if (IS_ERR(port->psy))
+ return PTR_ERR(port->psy);
+
+ return 0;
+}
+
struct tcpm_port *tcpm_register_port(struct device *dev, struct tcpc_dev *tcpc)
{
struct tcpm_port *port;
@@ -4253,6 +4482,10 @@ struct tcpm_port *tcpm_register_port(struct device *dev, struct tcpc_dev *tcpc)
port->partner_desc.identity = &port->partner_ident;
port->port_type = tcpc->config->type;
+ err = devm_tcpm_psy_register(port);
+ if (err)
+ goto out_destroy_wq;
+
port->typec_port = typec_register_port(port->dev, &port->typec_caps);
if (!port->typec_port) {
err = -ENOMEM;
--
1.9.1
^ permalink raw reply related [flat|nested] 31+ messages in thread
* [PATCH v3 7/7] typec: tcpm: Add support for sink PPS related messages
@ 2017-12-18 12:41 ` Opensource [Adam Thomson]
0 siblings, 0 replies; 31+ messages in thread
From: Adam Thomson @ 2017-12-18 12:41 UTC (permalink / raw)
To: Heikki Krogerus, Guenter Roeck, Greg Kroah-Hartman,
Sebastian Reichel, Hans de Goede, Yueyao Zhu, Rui Miguel Silva
Cc: linux-usb, linux-pm, linux-kernel, support.opensource
This commit adds sink side support for Get_Status, Status,
Get_PPS_Status and PPS_Status handling. As there's the
potential for a partner to respond with Not_Supported
handling of this message is also added. Sending of
Not_Supported is added is added to handle messages
received but not yet handled.
Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
---
drivers/usb/typec/tcpm.c | 152 ++++++++++++++++++++++++++++++++++++++++++++---
1 file changed, 143 insertions(+), 9 deletions(-)
diff --git a/drivers/usb/typec/tcpm.c b/drivers/usb/typec/tcpm.c
index f2bac3d..fe3bbb9 100644
--- a/drivers/usb/typec/tcpm.c
+++ b/drivers/usb/typec/tcpm.c
@@ -19,7 +19,9 @@
#include <linux/slab.h>
#include <linux/spinlock.h>
#include <linux/usb/pd.h>
+#include <linux/usb/pd_ado.h>
#include <linux/usb/pd_bdo.h>
+#include <linux/usb/pd_ext_sdb.h>
#include <linux/usb/pd_vdo.h>
#include <linux/usb/tcpm.h>
#include <linux/usb/typec.h>
@@ -113,6 +115,11 @@
S(SNK_TRYWAIT_VBUS), \
S(BIST_RX), \
\
+ S(GET_STATUS_SEND), \
+ S(GET_STATUS_SEND_TIMEOUT), \
+ S(GET_PPS_STATUS_SEND), \
+ S(GET_PPS_STATUS_SEND_TIMEOUT), \
+ \
S(ERROR_RECOVERY), \
S(PORT_RESET), \
S(PORT_RESET_WAIT_OFF)
@@ -143,6 +150,7 @@ enum pd_msg_request {
PD_MSG_NONE = 0,
PD_MSG_CTRL_REJECT,
PD_MSG_CTRL_WAIT,
+ PD_MSG_CTRL_NOT_SUPP,
PD_MSG_DATA_SINK_CAP,
PD_MSG_DATA_SOURCE_CAP,
};
@@ -1413,10 +1421,42 @@ static int tcpm_validate_caps(struct tcpm_port *port, const u32 *pdo,
/*
* PD (data, control) command handling functions
*/
+static inline enum tcpm_state ready_state(struct tcpm_port *port)
+{
+ if (port->pwr_role == TYPEC_SOURCE)
+ return SRC_READY;
+ else
+ return SNK_READY;
+}
static int tcpm_pd_send_control(struct tcpm_port *port,
enum pd_ctrl_msg_type type);
+static void tcpm_handle_alert(struct tcpm_port *port, const __le32 *payload,
+ int cnt)
+{
+ u32 p0 = le32_to_cpu(payload[0]);
+ unsigned int type = usb_pd_ado_type(p0);
+
+ if (!type) {
+ tcpm_log(port, "Alert message received with no type");
+ return;
+ }
+
+ /* Just handling non-battery alerts for now */
+ if (!(type & USB_PD_ADO_TYPE_BATT_STATUS_CHANGE)) {
+ switch (port->state) {
+ case SRC_READY:
+ case SNK_READY:
+ tcpm_set_state(port, GET_STATUS_SEND, 0);
+ break;
+ default:
+ tcpm_queue_message(port, PD_MSG_CTRL_WAIT);
+ break;
+ }
+ }
+}
+
static void tcpm_pd_data_request(struct tcpm_port *port,
const struct pd_message *msg)
{
@@ -1502,6 +1542,14 @@ static void tcpm_pd_data_request(struct tcpm_port *port,
tcpm_set_state(port, BIST_RX, 0);
}
break;
+ case PD_DATA_ALERT:
+ tcpm_handle_alert(port, msg->payload, cnt);
+ break;
+ case PD_DATA_BATT_STATUS:
+ case PD_DATA_GET_COUNTRY_INFO:
+ /* Currently unsupported */
+ tcpm_queue_message(port, PD_MSG_CTRL_NOT_SUPP);
+ break;
default:
tcpm_log(port, "Unhandled data message type %#x", type);
break;
@@ -1584,6 +1632,7 @@ static void tcpm_pd_ctrl_request(struct tcpm_port *port,
break;
case PD_CTRL_REJECT:
case PD_CTRL_WAIT:
+ case PD_CTRL_NOT_SUPP:
switch (port->state) {
case SNK_NEGOTIATE_CAPABILITIES:
/* USB PD specification, Figure 8-43 */
@@ -1703,12 +1752,84 @@ static void tcpm_pd_ctrl_request(struct tcpm_port *port,
break;
}
break;
+ case PD_CTRL_GET_SOURCE_CAP_EXT:
+ case PD_CTRL_GET_STATUS:
+ case PD_CTRL_FR_SWAP:
+ case PD_CTRL_GET_PPS_STATUS:
+ case PD_CTRL_GET_COUNTRY_CODES:
+ /* Currently not supported */
+ tcpm_queue_message(port, PD_MSG_CTRL_NOT_SUPP);
+ break;
default:
tcpm_log(port, "Unhandled ctrl message type %#x", type);
break;
}
}
+static void tcpm_pd_ext_msg_request(struct tcpm_port *port,
+ const struct pd_message *msg)
+{
+ enum pd_ext_msg_type type = pd_header_type_le(msg->header);
+ unsigned int data_size = pd_ext_header_data_size_le(msg->ext_msg.header);
+ u8 *data;
+
+ if (!(msg->ext_msg.header && PD_EXT_HDR_CHUNKED)) {
+ tcpm_log(port, "Unchunked extended messages unsupported");
+ return;
+ }
+
+ if (data_size > (PD_EXT_MAX_CHUNK_DATA)) {
+ tcpm_log(port, "Chunk handling not yet supported");
+ return;
+ }
+
+ data = kzalloc(data_size, GFP_KERNEL);
+ if (!data) {
+ tcpm_log(port, "Failed to allocate memory for ext msg data");
+ return;
+ }
+ memcpy(data, msg->ext_msg.data, data_size);
+
+ switch (type) {
+ case PD_EXT_STATUS:
+ /*
+ * If PPS related events raised then get PPS status to clear
+ * (see USB PD 3.0 Spec, 6.5.2.4)
+ */
+ if (data[USB_PD_EXT_SDB_EVENT_FLAGS] & USB_PD_EXT_SDB_PPS_EVENTS)
+ tcpm_set_state(port, GET_PPS_STATUS_SEND, 0);
+ else
+ tcpm_set_state(port, ready_state(port), 0);
+ break;
+ case PD_EXT_PPS_STATUS:
+ /*
+ * For now the PPS status message is used to clear events
+ * and nothing more.
+ */
+ tcpm_set_state(port, ready_state(port), 0);
+ break;
+ case PD_EXT_SOURCE_CAP_EXT:
+ case PD_EXT_GET_BATT_CAP:
+ case PD_EXT_GET_BATT_STATUS:
+ case PD_EXT_BATT_CAP:
+ case PD_EXT_GET_MANUFACTURER_INFO:
+ case PD_EXT_MANUFACTURER_INFO:
+ case PD_EXT_SECURITY_REQUEST:
+ case PD_EXT_SECURITY_RESPONSE:
+ case PD_EXT_FW_UPDATE_REQUEST:
+ case PD_EXT_FW_UPDATE_RESPONSE:
+ case PD_EXT_COUNTRY_INFO:
+ case PD_EXT_COUNTRY_CODES:
+ tcpm_queue_message(port, PD_MSG_CTRL_NOT_SUPP);
+ break;
+ default:
+ tcpm_log(port, "Unhandle extended message type %#x", type);
+ break;
+ }
+
+ kfree(data);
+}
+
static void tcpm_pd_rx_handler(struct work_struct *work)
{
struct pd_rx_event *event = container_of(work,
@@ -1749,7 +1870,9 @@ static void tcpm_pd_rx_handler(struct work_struct *work)
"Data role mismatch, initiating error recovery");
tcpm_set_state(port, ERROR_RECOVERY, 0);
} else {
- if (cnt)
+ if (msg->header & PD_HEADER_EXT_HDR)
+ tcpm_pd_ext_msg_request(port, msg);
+ else if (cnt)
tcpm_pd_data_request(port, msg);
else
tcpm_pd_ctrl_request(port, msg);
@@ -1810,6 +1933,9 @@ static bool tcpm_send_queued_message(struct tcpm_port *port)
case PD_MSG_CTRL_REJECT:
tcpm_pd_send_control(port, PD_CTRL_REJECT);
break;
+ case PD_MSG_CTRL_NOT_SUPP:
+ tcpm_pd_send_control(port, PD_CTRL_NOT_SUPP);
+ break;
case PD_MSG_DATA_SINK_CAP:
tcpm_pd_send_sink_caps(port);
break;
@@ -2561,14 +2687,6 @@ static inline enum tcpm_state hard_reset_state(struct tcpm_port *port)
return SNK_UNATTACHED;
}
-static inline enum tcpm_state ready_state(struct tcpm_port *port)
-{
- if (port->pwr_role == TYPEC_SOURCE)
- return SRC_READY;
- else
- return SNK_READY;
-}
-
static inline enum tcpm_state unattached_state(struct tcpm_port *port)
{
if (port->port_type == TYPEC_PORT_DRP) {
@@ -3271,6 +3389,22 @@ static void run_state_machine(struct tcpm_port *port)
/* Always switch to unattached state */
tcpm_set_state(port, unattached_state(port), 0);
break;
+ case GET_STATUS_SEND:
+ tcpm_pd_send_control(port, PD_CTRL_GET_STATUS);
+ tcpm_set_state(port, GET_STATUS_SEND_TIMEOUT,
+ PD_T_SENDER_RESPONSE);
+ break;
+ case GET_STATUS_SEND_TIMEOUT:
+ tcpm_set_state(port, ready_state(port), 0);
+ break;
+ case GET_PPS_STATUS_SEND:
+ tcpm_pd_send_control(port, PD_CTRL_GET_PPS_STATUS);
+ tcpm_set_state(port, GET_PPS_STATUS_SEND_TIMEOUT,
+ PD_T_SENDER_RESPONSE);
+ break;
+ case GET_PPS_STATUS_SEND_TIMEOUT:
+ tcpm_set_state(port, ready_state(port), 0);
+ break;
case ERROR_RECOVERY:
tcpm_swap_complete(port, -EPROTO);
tcpm_pps_complete(port, -EPROTO);
--
1.9.1
^ permalink raw reply related [flat|nested] 31+ messages in thread
* [v3,7/7] typec: tcpm: Add support for sink PPS related messages
@ 2017-12-18 12:41 ` Opensource [Adam Thomson]
0 siblings, 0 replies; 31+ messages in thread
From: Opensource [Adam Thomson] @ 2017-12-18 12:41 UTC (permalink / raw)
To: Heikki Krogerus, Guenter Roeck, Greg Kroah-Hartman,
Sebastian Reichel, Hans de Goede, Yueyao Zhu, Rui Miguel Silva
Cc: linux-usb, linux-pm, linux-kernel, support.opensource
This commit adds sink side support for Get_Status, Status,
Get_PPS_Status and PPS_Status handling. As there's the
potential for a partner to respond with Not_Supported
handling of this message is also added. Sending of
Not_Supported is added is added to handle messages
received but not yet handled.
Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
---
drivers/usb/typec/tcpm.c | 152 ++++++++++++++++++++++++++++++++++++++++++++---
1 file changed, 143 insertions(+), 9 deletions(-)
diff --git a/drivers/usb/typec/tcpm.c b/drivers/usb/typec/tcpm.c
index f2bac3d..fe3bbb9 100644
--- a/drivers/usb/typec/tcpm.c
+++ b/drivers/usb/typec/tcpm.c
@@ -19,7 +19,9 @@
#include <linux/slab.h>
#include <linux/spinlock.h>
#include <linux/usb/pd.h>
+#include <linux/usb/pd_ado.h>
#include <linux/usb/pd_bdo.h>
+#include <linux/usb/pd_ext_sdb.h>
#include <linux/usb/pd_vdo.h>
#include <linux/usb/tcpm.h>
#include <linux/usb/typec.h>
@@ -113,6 +115,11 @@
S(SNK_TRYWAIT_VBUS), \
S(BIST_RX), \
\
+ S(GET_STATUS_SEND), \
+ S(GET_STATUS_SEND_TIMEOUT), \
+ S(GET_PPS_STATUS_SEND), \
+ S(GET_PPS_STATUS_SEND_TIMEOUT), \
+ \
S(ERROR_RECOVERY), \
S(PORT_RESET), \
S(PORT_RESET_WAIT_OFF)
@@ -143,6 +150,7 @@ enum pd_msg_request {
PD_MSG_NONE = 0,
PD_MSG_CTRL_REJECT,
PD_MSG_CTRL_WAIT,
+ PD_MSG_CTRL_NOT_SUPP,
PD_MSG_DATA_SINK_CAP,
PD_MSG_DATA_SOURCE_CAP,
};
@@ -1413,10 +1421,42 @@ static int tcpm_validate_caps(struct tcpm_port *port, const u32 *pdo,
/*
* PD (data, control) command handling functions
*/
+static inline enum tcpm_state ready_state(struct tcpm_port *port)
+{
+ if (port->pwr_role == TYPEC_SOURCE)
+ return SRC_READY;
+ else
+ return SNK_READY;
+}
static int tcpm_pd_send_control(struct tcpm_port *port,
enum pd_ctrl_msg_type type);
+static void tcpm_handle_alert(struct tcpm_port *port, const __le32 *payload,
+ int cnt)
+{
+ u32 p0 = le32_to_cpu(payload[0]);
+ unsigned int type = usb_pd_ado_type(p0);
+
+ if (!type) {
+ tcpm_log(port, "Alert message received with no type");
+ return;
+ }
+
+ /* Just handling non-battery alerts for now */
+ if (!(type & USB_PD_ADO_TYPE_BATT_STATUS_CHANGE)) {
+ switch (port->state) {
+ case SRC_READY:
+ case SNK_READY:
+ tcpm_set_state(port, GET_STATUS_SEND, 0);
+ break;
+ default:
+ tcpm_queue_message(port, PD_MSG_CTRL_WAIT);
+ break;
+ }
+ }
+}
+
static void tcpm_pd_data_request(struct tcpm_port *port,
const struct pd_message *msg)
{
@@ -1502,6 +1542,14 @@ static void tcpm_pd_data_request(struct tcpm_port *port,
tcpm_set_state(port, BIST_RX, 0);
}
break;
+ case PD_DATA_ALERT:
+ tcpm_handle_alert(port, msg->payload, cnt);
+ break;
+ case PD_DATA_BATT_STATUS:
+ case PD_DATA_GET_COUNTRY_INFO:
+ /* Currently unsupported */
+ tcpm_queue_message(port, PD_MSG_CTRL_NOT_SUPP);
+ break;
default:
tcpm_log(port, "Unhandled data message type %#x", type);
break;
@@ -1584,6 +1632,7 @@ static void tcpm_pd_ctrl_request(struct tcpm_port *port,
break;
case PD_CTRL_REJECT:
case PD_CTRL_WAIT:
+ case PD_CTRL_NOT_SUPP:
switch (port->state) {
case SNK_NEGOTIATE_CAPABILITIES:
/* USB PD specification, Figure 8-43 */
@@ -1703,12 +1752,84 @@ static void tcpm_pd_ctrl_request(struct tcpm_port *port,
break;
}
break;
+ case PD_CTRL_GET_SOURCE_CAP_EXT:
+ case PD_CTRL_GET_STATUS:
+ case PD_CTRL_FR_SWAP:
+ case PD_CTRL_GET_PPS_STATUS:
+ case PD_CTRL_GET_COUNTRY_CODES:
+ /* Currently not supported */
+ tcpm_queue_message(port, PD_MSG_CTRL_NOT_SUPP);
+ break;
default:
tcpm_log(port, "Unhandled ctrl message type %#x", type);
break;
}
}
+static void tcpm_pd_ext_msg_request(struct tcpm_port *port,
+ const struct pd_message *msg)
+{
+ enum pd_ext_msg_type type = pd_header_type_le(msg->header);
+ unsigned int data_size = pd_ext_header_data_size_le(msg->ext_msg.header);
+ u8 *data;
+
+ if (!(msg->ext_msg.header && PD_EXT_HDR_CHUNKED)) {
+ tcpm_log(port, "Unchunked extended messages unsupported");
+ return;
+ }
+
+ if (data_size > (PD_EXT_MAX_CHUNK_DATA)) {
+ tcpm_log(port, "Chunk handling not yet supported");
+ return;
+ }
+
+ data = kzalloc(data_size, GFP_KERNEL);
+ if (!data) {
+ tcpm_log(port, "Failed to allocate memory for ext msg data");
+ return;
+ }
+ memcpy(data, msg->ext_msg.data, data_size);
+
+ switch (type) {
+ case PD_EXT_STATUS:
+ /*
+ * If PPS related events raised then get PPS status to clear
+ * (see USB PD 3.0 Spec, 6.5.2.4)
+ */
+ if (data[USB_PD_EXT_SDB_EVENT_FLAGS] & USB_PD_EXT_SDB_PPS_EVENTS)
+ tcpm_set_state(port, GET_PPS_STATUS_SEND, 0);
+ else
+ tcpm_set_state(port, ready_state(port), 0);
+ break;
+ case PD_EXT_PPS_STATUS:
+ /*
+ * For now the PPS status message is used to clear events
+ * and nothing more.
+ */
+ tcpm_set_state(port, ready_state(port), 0);
+ break;
+ case PD_EXT_SOURCE_CAP_EXT:
+ case PD_EXT_GET_BATT_CAP:
+ case PD_EXT_GET_BATT_STATUS:
+ case PD_EXT_BATT_CAP:
+ case PD_EXT_GET_MANUFACTURER_INFO:
+ case PD_EXT_MANUFACTURER_INFO:
+ case PD_EXT_SECURITY_REQUEST:
+ case PD_EXT_SECURITY_RESPONSE:
+ case PD_EXT_FW_UPDATE_REQUEST:
+ case PD_EXT_FW_UPDATE_RESPONSE:
+ case PD_EXT_COUNTRY_INFO:
+ case PD_EXT_COUNTRY_CODES:
+ tcpm_queue_message(port, PD_MSG_CTRL_NOT_SUPP);
+ break;
+ default:
+ tcpm_log(port, "Unhandle extended message type %#x", type);
+ break;
+ }
+
+ kfree(data);
+}
+
static void tcpm_pd_rx_handler(struct work_struct *work)
{
struct pd_rx_event *event = container_of(work,
@@ -1749,7 +1870,9 @@ static void tcpm_pd_rx_handler(struct work_struct *work)
"Data role mismatch, initiating error recovery");
tcpm_set_state(port, ERROR_RECOVERY, 0);
} else {
- if (cnt)
+ if (msg->header & PD_HEADER_EXT_HDR)
+ tcpm_pd_ext_msg_request(port, msg);
+ else if (cnt)
tcpm_pd_data_request(port, msg);
else
tcpm_pd_ctrl_request(port, msg);
@@ -1810,6 +1933,9 @@ static bool tcpm_send_queued_message(struct tcpm_port *port)
case PD_MSG_CTRL_REJECT:
tcpm_pd_send_control(port, PD_CTRL_REJECT);
break;
+ case PD_MSG_CTRL_NOT_SUPP:
+ tcpm_pd_send_control(port, PD_CTRL_NOT_SUPP);
+ break;
case PD_MSG_DATA_SINK_CAP:
tcpm_pd_send_sink_caps(port);
break;
@@ -2561,14 +2687,6 @@ static inline enum tcpm_state hard_reset_state(struct tcpm_port *port)
return SNK_UNATTACHED;
}
-static inline enum tcpm_state ready_state(struct tcpm_port *port)
-{
- if (port->pwr_role == TYPEC_SOURCE)
- return SRC_READY;
- else
- return SNK_READY;
-}
-
static inline enum tcpm_state unattached_state(struct tcpm_port *port)
{
if (port->port_type == TYPEC_PORT_DRP) {
@@ -3271,6 +3389,22 @@ static void run_state_machine(struct tcpm_port *port)
/* Always switch to unattached state */
tcpm_set_state(port, unattached_state(port), 0);
break;
+ case GET_STATUS_SEND:
+ tcpm_pd_send_control(port, PD_CTRL_GET_STATUS);
+ tcpm_set_state(port, GET_STATUS_SEND_TIMEOUT,
+ PD_T_SENDER_RESPONSE);
+ break;
+ case GET_STATUS_SEND_TIMEOUT:
+ tcpm_set_state(port, ready_state(port), 0);
+ break;
+ case GET_PPS_STATUS_SEND:
+ tcpm_pd_send_control(port, PD_CTRL_GET_PPS_STATUS);
+ tcpm_set_state(port, GET_PPS_STATUS_SEND_TIMEOUT,
+ PD_T_SENDER_RESPONSE);
+ break;
+ case GET_PPS_STATUS_SEND_TIMEOUT:
+ tcpm_set_state(port, ready_state(port), 0);
+ break;
case ERROR_RECOVERY:
tcpm_swap_complete(port, -EPROTO);
tcpm_pps_complete(port, -EPROTO);
^ permalink raw reply related [flat|nested] 31+ messages in thread
* [PATCH v3 7/7] typec: tcpm: Add support for sink PPS related messages
@ 2017-12-18 12:41 ` Opensource [Adam Thomson]
0 siblings, 0 replies; 31+ messages in thread
From: Adam Thomson @ 2017-12-18 12:41 UTC (permalink / raw)
To: Heikki Krogerus, Guenter Roeck, Greg Kroah-Hartman,
Sebastian Reichel, Hans de Goede, Yueyao Zhu, Rui Miguel Silva
Cc: linux-usb, linux-pm, linux-kernel, support.opensource
This commit adds sink side support for Get_Status, Status,
Get_PPS_Status and PPS_Status handling. As there's the
potential for a partner to respond with Not_Supported
handling of this message is also added. Sending of
Not_Supported is added is added to handle messages
received but not yet handled.
Signed-off-by: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
---
drivers/usb/typec/tcpm.c | 152 ++++++++++++++++++++++++++++++++++++++++++++---
1 file changed, 143 insertions(+), 9 deletions(-)
diff --git a/drivers/usb/typec/tcpm.c b/drivers/usb/typec/tcpm.c
index f2bac3d..fe3bbb9 100644
--- a/drivers/usb/typec/tcpm.c
+++ b/drivers/usb/typec/tcpm.c
@@ -19,7 +19,9 @@
#include <linux/slab.h>
#include <linux/spinlock.h>
#include <linux/usb/pd.h>
+#include <linux/usb/pd_ado.h>
#include <linux/usb/pd_bdo.h>
+#include <linux/usb/pd_ext_sdb.h>
#include <linux/usb/pd_vdo.h>
#include <linux/usb/tcpm.h>
#include <linux/usb/typec.h>
@@ -113,6 +115,11 @@
S(SNK_TRYWAIT_VBUS), \
S(BIST_RX), \
\
+ S(GET_STATUS_SEND), \
+ S(GET_STATUS_SEND_TIMEOUT), \
+ S(GET_PPS_STATUS_SEND), \
+ S(GET_PPS_STATUS_SEND_TIMEOUT), \
+ \
S(ERROR_RECOVERY), \
S(PORT_RESET), \
S(PORT_RESET_WAIT_OFF)
@@ -143,6 +150,7 @@ enum pd_msg_request {
PD_MSG_NONE = 0,
PD_MSG_CTRL_REJECT,
PD_MSG_CTRL_WAIT,
+ PD_MSG_CTRL_NOT_SUPP,
PD_MSG_DATA_SINK_CAP,
PD_MSG_DATA_SOURCE_CAP,
};
@@ -1413,10 +1421,42 @@ static int tcpm_validate_caps(struct tcpm_port *port, const u32 *pdo,
/*
* PD (data, control) command handling functions
*/
+static inline enum tcpm_state ready_state(struct tcpm_port *port)
+{
+ if (port->pwr_role == TYPEC_SOURCE)
+ return SRC_READY;
+ else
+ return SNK_READY;
+}
static int tcpm_pd_send_control(struct tcpm_port *port,
enum pd_ctrl_msg_type type);
+static void tcpm_handle_alert(struct tcpm_port *port, const __le32 *payload,
+ int cnt)
+{
+ u32 p0 = le32_to_cpu(payload[0]);
+ unsigned int type = usb_pd_ado_type(p0);
+
+ if (!type) {
+ tcpm_log(port, "Alert message received with no type");
+ return;
+ }
+
+ /* Just handling non-battery alerts for now */
+ if (!(type & USB_PD_ADO_TYPE_BATT_STATUS_CHANGE)) {
+ switch (port->state) {
+ case SRC_READY:
+ case SNK_READY:
+ tcpm_set_state(port, GET_STATUS_SEND, 0);
+ break;
+ default:
+ tcpm_queue_message(port, PD_MSG_CTRL_WAIT);
+ break;
+ }
+ }
+}
+
static void tcpm_pd_data_request(struct tcpm_port *port,
const struct pd_message *msg)
{
@@ -1502,6 +1542,14 @@ static void tcpm_pd_data_request(struct tcpm_port *port,
tcpm_set_state(port, BIST_RX, 0);
}
break;
+ case PD_DATA_ALERT:
+ tcpm_handle_alert(port, msg->payload, cnt);
+ break;
+ case PD_DATA_BATT_STATUS:
+ case PD_DATA_GET_COUNTRY_INFO:
+ /* Currently unsupported */
+ tcpm_queue_message(port, PD_MSG_CTRL_NOT_SUPP);
+ break;
default:
tcpm_log(port, "Unhandled data message type %#x", type);
break;
@@ -1584,6 +1632,7 @@ static void tcpm_pd_ctrl_request(struct tcpm_port *port,
break;
case PD_CTRL_REJECT:
case PD_CTRL_WAIT:
+ case PD_CTRL_NOT_SUPP:
switch (port->state) {
case SNK_NEGOTIATE_CAPABILITIES:
/* USB PD specification, Figure 8-43 */
@@ -1703,12 +1752,84 @@ static void tcpm_pd_ctrl_request(struct tcpm_port *port,
break;
}
break;
+ case PD_CTRL_GET_SOURCE_CAP_EXT:
+ case PD_CTRL_GET_STATUS:
+ case PD_CTRL_FR_SWAP:
+ case PD_CTRL_GET_PPS_STATUS:
+ case PD_CTRL_GET_COUNTRY_CODES:
+ /* Currently not supported */
+ tcpm_queue_message(port, PD_MSG_CTRL_NOT_SUPP);
+ break;
default:
tcpm_log(port, "Unhandled ctrl message type %#x", type);
break;
}
}
+static void tcpm_pd_ext_msg_request(struct tcpm_port *port,
+ const struct pd_message *msg)
+{
+ enum pd_ext_msg_type type = pd_header_type_le(msg->header);
+ unsigned int data_size = pd_ext_header_data_size_le(msg->ext_msg.header);
+ u8 *data;
+
+ if (!(msg->ext_msg.header && PD_EXT_HDR_CHUNKED)) {
+ tcpm_log(port, "Unchunked extended messages unsupported");
+ return;
+ }
+
+ if (data_size > (PD_EXT_MAX_CHUNK_DATA)) {
+ tcpm_log(port, "Chunk handling not yet supported");
+ return;
+ }
+
+ data = kzalloc(data_size, GFP_KERNEL);
+ if (!data) {
+ tcpm_log(port, "Failed to allocate memory for ext msg data");
+ return;
+ }
+ memcpy(data, msg->ext_msg.data, data_size);
+
+ switch (type) {
+ case PD_EXT_STATUS:
+ /*
+ * If PPS related events raised then get PPS status to clear
+ * (see USB PD 3.0 Spec, 6.5.2.4)
+ */
+ if (data[USB_PD_EXT_SDB_EVENT_FLAGS] & USB_PD_EXT_SDB_PPS_EVENTS)
+ tcpm_set_state(port, GET_PPS_STATUS_SEND, 0);
+ else
+ tcpm_set_state(port, ready_state(port), 0);
+ break;
+ case PD_EXT_PPS_STATUS:
+ /*
+ * For now the PPS status message is used to clear events
+ * and nothing more.
+ */
+ tcpm_set_state(port, ready_state(port), 0);
+ break;
+ case PD_EXT_SOURCE_CAP_EXT:
+ case PD_EXT_GET_BATT_CAP:
+ case PD_EXT_GET_BATT_STATUS:
+ case PD_EXT_BATT_CAP:
+ case PD_EXT_GET_MANUFACTURER_INFO:
+ case PD_EXT_MANUFACTURER_INFO:
+ case PD_EXT_SECURITY_REQUEST:
+ case PD_EXT_SECURITY_RESPONSE:
+ case PD_EXT_FW_UPDATE_REQUEST:
+ case PD_EXT_FW_UPDATE_RESPONSE:
+ case PD_EXT_COUNTRY_INFO:
+ case PD_EXT_COUNTRY_CODES:
+ tcpm_queue_message(port, PD_MSG_CTRL_NOT_SUPP);
+ break;
+ default:
+ tcpm_log(port, "Unhandle extended message type %#x", type);
+ break;
+ }
+
+ kfree(data);
+}
+
static void tcpm_pd_rx_handler(struct work_struct *work)
{
struct pd_rx_event *event = container_of(work,
@@ -1749,7 +1870,9 @@ static void tcpm_pd_rx_handler(struct work_struct *work)
"Data role mismatch, initiating error recovery");
tcpm_set_state(port, ERROR_RECOVERY, 0);
} else {
- if (cnt)
+ if (msg->header & PD_HEADER_EXT_HDR)
+ tcpm_pd_ext_msg_request(port, msg);
+ else if (cnt)
tcpm_pd_data_request(port, msg);
else
tcpm_pd_ctrl_request(port, msg);
@@ -1810,6 +1933,9 @@ static bool tcpm_send_queued_message(struct tcpm_port *port)
case PD_MSG_CTRL_REJECT:
tcpm_pd_send_control(port, PD_CTRL_REJECT);
break;
+ case PD_MSG_CTRL_NOT_SUPP:
+ tcpm_pd_send_control(port, PD_CTRL_NOT_SUPP);
+ break;
case PD_MSG_DATA_SINK_CAP:
tcpm_pd_send_sink_caps(port);
break;
@@ -2561,14 +2687,6 @@ static inline enum tcpm_state hard_reset_state(struct tcpm_port *port)
return SNK_UNATTACHED;
}
-static inline enum tcpm_state ready_state(struct tcpm_port *port)
-{
- if (port->pwr_role == TYPEC_SOURCE)
- return SRC_READY;
- else
- return SNK_READY;
-}
-
static inline enum tcpm_state unattached_state(struct tcpm_port *port)
{
if (port->port_type == TYPEC_PORT_DRP) {
@@ -3271,6 +3389,22 @@ static void run_state_machine(struct tcpm_port *port)
/* Always switch to unattached state */
tcpm_set_state(port, unattached_state(port), 0);
break;
+ case GET_STATUS_SEND:
+ tcpm_pd_send_control(port, PD_CTRL_GET_STATUS);
+ tcpm_set_state(port, GET_STATUS_SEND_TIMEOUT,
+ PD_T_SENDER_RESPONSE);
+ break;
+ case GET_STATUS_SEND_TIMEOUT:
+ tcpm_set_state(port, ready_state(port), 0);
+ break;
+ case GET_PPS_STATUS_SEND:
+ tcpm_pd_send_control(port, PD_CTRL_GET_PPS_STATUS);
+ tcpm_set_state(port, GET_PPS_STATUS_SEND_TIMEOUT,
+ PD_T_SENDER_RESPONSE);
+ break;
+ case GET_PPS_STATUS_SEND_TIMEOUT:
+ tcpm_set_state(port, ready_state(port), 0);
+ break;
case ERROR_RECOVERY:
tcpm_swap_complete(port, -EPROTO);
tcpm_pps_complete(port, -EPROTO);
--
1.9.1
^ permalink raw reply related [flat|nested] 31+ messages in thread
* Re: [PATCH v3 1/7] typec: tcpm: Add PD Rev 3.0 definitions to PD header
@ 2017-12-20 13:48 ` kbuild test robot
0 siblings, 0 replies; 31+ messages in thread
From: kbuild test robot @ 2017-12-20 13:48 UTC (permalink / raw)
To: Adam Thomson
Cc: kbuild-all, Heikki Krogerus, Guenter Roeck, Greg Kroah-Hartman,
Sebastian Reichel, Hans de Goede, Yueyao Zhu, Rui Miguel Silva,
linux-usb, linux-pm, linux-kernel, support.opensource
[-- Attachment #1: Type: text/plain, Size: 6307 bytes --]
Hi Adam,
Thank you for the patch! Yet something to improve:
[auto build test ERROR on next-20171214]
[also build test ERROR on v4.15-rc4]
[cannot apply to usb/usb-testing hwmon/hwmon-next v4.15-rc3 v4.15-rc2 v4.15-rc1]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
url: https://github.com/0day-ci/linux/commits/Adam-Thomson/typec-tcpm-Add-sink-side-support-for-PPS/20171220-205656
config: i386-randconfig-x016-201751 (attached as .config)
compiler: gcc-7 (Debian 7.2.0-12) 7.2.1 20171025
reproduce:
# save the attached .config to linux build tree
make ARCH=i386
Note: the linux-review/Adam-Thomson/typec-tcpm-Add-sink-side-support-for-PPS/20171220-205656 HEAD 79d2ed6a04117216910ac1dad566e86599a0bcf5 builds fine.
It only hurts bisectibility.
All errors (new ones prefixed by >>):
drivers/usb/typec/tcpm.c: In function 'tcpm_pd_send_source_caps':
>> drivers/usb/typec/tcpm.c:794:27: error: macro "PD_HEADER_LE" requires 6 arguments, but only 5 given
port->message_id, 0);
^
>> drivers/usb/typec/tcpm.c:791:16: error: 'PD_HEADER_LE' undeclared (first use in this function)
msg.header = PD_HEADER_LE(PD_CTRL_REJECT,
^~~~~~~~~~~~
drivers/usb/typec/tcpm.c:791:16: note: each undeclared identifier is reported only once for each function it appears in
drivers/usb/typec/tcpm.c:800:24: error: macro "PD_HEADER_LE" requires 6 arguments, but only 5 given
port->nr_src_pdo);
^
drivers/usb/typec/tcpm.c: In function 'tcpm_pd_send_sink_caps':
drivers/usb/typec/tcpm.c:819:27: error: macro "PD_HEADER_LE" requires 6 arguments, but only 5 given
port->message_id, 0);
^
drivers/usb/typec/tcpm.c:816:16: error: 'PD_HEADER_LE' undeclared (first use in this function)
msg.header = PD_HEADER_LE(PD_CTRL_REJECT,
^~~~~~~~~~~~
drivers/usb/typec/tcpm.c:825:24: error: macro "PD_HEADER_LE" requires 6 arguments, but only 5 given
port->nr_snk_pdo);
^
drivers/usb/typec/tcpm.c: In function 'vdm_run_state_machine':
drivers/usb/typec/tcpm.c:1190:41: error: macro "PD_HEADER_LE" requires 6 arguments, but only 5 given
port->message_id, port->vdo_count);
^
drivers/usb/typec/tcpm.c:1187:16: error: 'PD_HEADER_LE' undeclared (first use in this function)
msg.header = PD_HEADER_LE(PD_DATA_VENDOR_DEF,
^~~~~~~~~~~~
drivers/usb/typec/tcpm.c: In function 'tcpm_pd_send_control':
drivers/usb/typec/tcpm.c:1669:26: error: macro "PD_HEADER_LE" requires 6 arguments, but only 5 given
port->message_id, 0);
^
drivers/usb/typec/tcpm.c:1667:15: error: 'PD_HEADER_LE' undeclared (first use in this function)
msg.header = PD_HEADER_LE(type, port->pwr_role,
^~~~~~~~~~~~
drivers/usb/typec/tcpm.c: In function 'tcpm_pd_send_request':
drivers/usb/typec/tcpm.c:1946:26: error: macro "PD_HEADER_LE" requires 6 arguments, but only 5 given
port->message_id, 1);
^
drivers/usb/typec/tcpm.c:1943:15: error: 'PD_HEADER_LE' undeclared (first use in this function)
msg.header = PD_HEADER_LE(PD_DATA_REQUEST,
^~~~~~~~~~~~
vim +/PD_HEADER_LE +794 drivers/usb/typec/tcpm.c
f0690a25 drivers/staging/typec/tcpm.c Guenter Roeck 2017-04-27 782
f0690a25 drivers/staging/typec/tcpm.c Guenter Roeck 2017-04-27 783 static int tcpm_pd_send_source_caps(struct tcpm_port *port)
f0690a25 drivers/staging/typec/tcpm.c Guenter Roeck 2017-04-27 784 {
f0690a25 drivers/staging/typec/tcpm.c Guenter Roeck 2017-04-27 785 struct pd_message msg;
f0690a25 drivers/staging/typec/tcpm.c Guenter Roeck 2017-04-27 786 int i;
f0690a25 drivers/staging/typec/tcpm.c Guenter Roeck 2017-04-27 787
f0690a25 drivers/staging/typec/tcpm.c Guenter Roeck 2017-04-27 788 memset(&msg, 0, sizeof(msg));
f0690a25 drivers/staging/typec/tcpm.c Guenter Roeck 2017-04-27 789 if (!port->nr_src_pdo) {
f0690a25 drivers/staging/typec/tcpm.c Guenter Roeck 2017-04-27 790 /* No source capabilities defined, sink only */
f0690a25 drivers/staging/typec/tcpm.c Guenter Roeck 2017-04-27 @791 msg.header = PD_HEADER_LE(PD_CTRL_REJECT,
f0690a25 drivers/staging/typec/tcpm.c Guenter Roeck 2017-04-27 792 port->pwr_role,
f0690a25 drivers/staging/typec/tcpm.c Guenter Roeck 2017-04-27 793 port->data_role,
f0690a25 drivers/staging/typec/tcpm.c Guenter Roeck 2017-04-27 @794 port->message_id, 0);
f0690a25 drivers/staging/typec/tcpm.c Guenter Roeck 2017-04-27 795 } else {
f0690a25 drivers/staging/typec/tcpm.c Guenter Roeck 2017-04-27 796 msg.header = PD_HEADER_LE(PD_DATA_SOURCE_CAP,
f0690a25 drivers/staging/typec/tcpm.c Guenter Roeck 2017-04-27 797 port->pwr_role,
f0690a25 drivers/staging/typec/tcpm.c Guenter Roeck 2017-04-27 798 port->data_role,
f0690a25 drivers/staging/typec/tcpm.c Guenter Roeck 2017-04-27 799 port->message_id,
f0690a25 drivers/staging/typec/tcpm.c Guenter Roeck 2017-04-27 800 port->nr_src_pdo);
f0690a25 drivers/staging/typec/tcpm.c Guenter Roeck 2017-04-27 801 }
f0690a25 drivers/staging/typec/tcpm.c Guenter Roeck 2017-04-27 802 for (i = 0; i < port->nr_src_pdo; i++)
f0690a25 drivers/staging/typec/tcpm.c Guenter Roeck 2017-04-27 803 msg.payload[i] = cpu_to_le32(port->src_pdo[i]);
f0690a25 drivers/staging/typec/tcpm.c Guenter Roeck 2017-04-27 804
f0690a25 drivers/staging/typec/tcpm.c Guenter Roeck 2017-04-27 805 return tcpm_pd_transmit(port, TCPC_TX_SOP, &msg);
f0690a25 drivers/staging/typec/tcpm.c Guenter Roeck 2017-04-27 806 }
f0690a25 drivers/staging/typec/tcpm.c Guenter Roeck 2017-04-27 807
:::::: The code at line 794 was first introduced by commit
:::::: f0690a25a140b853b1842fa80faf828601bb47e8 staging: typec: USB Type-C Port Manager (tcpm)
:::::: TO: Guenter Roeck <groeck@chromium.org>
:::::: CC: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
[-- Attachment #2: .config.gz --]
[-- Type: application/gzip, Size: 29861 bytes --]
^ permalink raw reply [flat|nested] 31+ messages in thread
* [v3,1/7] typec: tcpm: Add PD Rev 3.0 definitions to PD header
@ 2017-12-20 13:48 ` kbuild test robot
0 siblings, 0 replies; 31+ messages in thread
From: kbuild test robot @ 2017-12-20 13:48 UTC (permalink / raw)
To: Adam Thomson
Cc: kbuild-all, Heikki Krogerus, Guenter Roeck, Greg Kroah-Hartman,
Sebastian Reichel, Hans de Goede, Yueyao Zhu, Rui Miguel Silva,
linux-usb, linux-pm, linux-kernel, support.opensource
Hi Adam,
Thank you for the patch! Yet something to improve:
[auto build test ERROR on next-20171214]
[also build test ERROR on v4.15-rc4]
[cannot apply to usb/usb-testing hwmon/hwmon-next v4.15-rc3 v4.15-rc2 v4.15-rc1]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
url: https://github.com/0day-ci/linux/commits/Adam-Thomson/typec-tcpm-Add-sink-side-support-for-PPS/20171220-205656
config: i386-randconfig-x016-201751 (attached as .config)
compiler: gcc-7 (Debian 7.2.0-12) 7.2.1 20171025
reproduce:
# save the attached .config to linux build tree
make ARCH=i386
Note: the linux-review/Adam-Thomson/typec-tcpm-Add-sink-side-support-for-PPS/20171220-205656 HEAD 79d2ed6a04117216910ac1dad566e86599a0bcf5 builds fine.
It only hurts bisectibility.
All errors (new ones prefixed by >>):
drivers/usb/typec/tcpm.c: In function 'tcpm_pd_send_source_caps':
>> drivers/usb/typec/tcpm.c:794:27: error: macro "PD_HEADER_LE" requires 6 arguments, but only 5 given
port->message_id, 0);
^
>> drivers/usb/typec/tcpm.c:791:16: error: 'PD_HEADER_LE' undeclared (first use in this function)
msg.header = PD_HEADER_LE(PD_CTRL_REJECT,
^~~~~~~~~~~~
drivers/usb/typec/tcpm.c:791:16: note: each undeclared identifier is reported only once for each function it appears in
drivers/usb/typec/tcpm.c:800:24: error: macro "PD_HEADER_LE" requires 6 arguments, but only 5 given
port->nr_src_pdo);
^
drivers/usb/typec/tcpm.c: In function 'tcpm_pd_send_sink_caps':
drivers/usb/typec/tcpm.c:819:27: error: macro "PD_HEADER_LE" requires 6 arguments, but only 5 given
port->message_id, 0);
^
drivers/usb/typec/tcpm.c:816:16: error: 'PD_HEADER_LE' undeclared (first use in this function)
msg.header = PD_HEADER_LE(PD_CTRL_REJECT,
^~~~~~~~~~~~
drivers/usb/typec/tcpm.c:825:24: error: macro "PD_HEADER_LE" requires 6 arguments, but only 5 given
port->nr_snk_pdo);
^
drivers/usb/typec/tcpm.c: In function 'vdm_run_state_machine':
drivers/usb/typec/tcpm.c:1190:41: error: macro "PD_HEADER_LE" requires 6 arguments, but only 5 given
port->message_id, port->vdo_count);
^
drivers/usb/typec/tcpm.c:1187:16: error: 'PD_HEADER_LE' undeclared (first use in this function)
msg.header = PD_HEADER_LE(PD_DATA_VENDOR_DEF,
^~~~~~~~~~~~
drivers/usb/typec/tcpm.c: In function 'tcpm_pd_send_control':
drivers/usb/typec/tcpm.c:1669:26: error: macro "PD_HEADER_LE" requires 6 arguments, but only 5 given
port->message_id, 0);
^
drivers/usb/typec/tcpm.c:1667:15: error: 'PD_HEADER_LE' undeclared (first use in this function)
msg.header = PD_HEADER_LE(type, port->pwr_role,
^~~~~~~~~~~~
drivers/usb/typec/tcpm.c: In function 'tcpm_pd_send_request':
drivers/usb/typec/tcpm.c:1946:26: error: macro "PD_HEADER_LE" requires 6 arguments, but only 5 given
port->message_id, 1);
^
drivers/usb/typec/tcpm.c:1943:15: error: 'PD_HEADER_LE' undeclared (first use in this function)
msg.header = PD_HEADER_LE(PD_DATA_REQUEST,
^~~~~~~~~~~~
vim +/PD_HEADER_LE +794 drivers/usb/typec/tcpm.c
f0690a25 drivers/staging/typec/tcpm.c Guenter Roeck 2017-04-27 782
f0690a25 drivers/staging/typec/tcpm.c Guenter Roeck 2017-04-27 783 static int tcpm_pd_send_source_caps(struct tcpm_port *port)
f0690a25 drivers/staging/typec/tcpm.c Guenter Roeck 2017-04-27 784 {
f0690a25 drivers/staging/typec/tcpm.c Guenter Roeck 2017-04-27 785 struct pd_message msg;
f0690a25 drivers/staging/typec/tcpm.c Guenter Roeck 2017-04-27 786 int i;
f0690a25 drivers/staging/typec/tcpm.c Guenter Roeck 2017-04-27 787
f0690a25 drivers/staging/typec/tcpm.c Guenter Roeck 2017-04-27 788 memset(&msg, 0, sizeof(msg));
f0690a25 drivers/staging/typec/tcpm.c Guenter Roeck 2017-04-27 789 if (!port->nr_src_pdo) {
f0690a25 drivers/staging/typec/tcpm.c Guenter Roeck 2017-04-27 790 /* No source capabilities defined, sink only */
f0690a25 drivers/staging/typec/tcpm.c Guenter Roeck 2017-04-27 @791 msg.header = PD_HEADER_LE(PD_CTRL_REJECT,
f0690a25 drivers/staging/typec/tcpm.c Guenter Roeck 2017-04-27 792 port->pwr_role,
f0690a25 drivers/staging/typec/tcpm.c Guenter Roeck 2017-04-27 793 port->data_role,
f0690a25 drivers/staging/typec/tcpm.c Guenter Roeck 2017-04-27 @794 port->message_id, 0);
f0690a25 drivers/staging/typec/tcpm.c Guenter Roeck 2017-04-27 795 } else {
f0690a25 drivers/staging/typec/tcpm.c Guenter Roeck 2017-04-27 796 msg.header = PD_HEADER_LE(PD_DATA_SOURCE_CAP,
f0690a25 drivers/staging/typec/tcpm.c Guenter Roeck 2017-04-27 797 port->pwr_role,
f0690a25 drivers/staging/typec/tcpm.c Guenter Roeck 2017-04-27 798 port->data_role,
f0690a25 drivers/staging/typec/tcpm.c Guenter Roeck 2017-04-27 799 port->message_id,
f0690a25 drivers/staging/typec/tcpm.c Guenter Roeck 2017-04-27 800 port->nr_src_pdo);
f0690a25 drivers/staging/typec/tcpm.c Guenter Roeck 2017-04-27 801 }
f0690a25 drivers/staging/typec/tcpm.c Guenter Roeck 2017-04-27 802 for (i = 0; i < port->nr_src_pdo; i++)
f0690a25 drivers/staging/typec/tcpm.c Guenter Roeck 2017-04-27 803 msg.payload[i] = cpu_to_le32(port->src_pdo[i]);
f0690a25 drivers/staging/typec/tcpm.c Guenter Roeck 2017-04-27 804
f0690a25 drivers/staging/typec/tcpm.c Guenter Roeck 2017-04-27 805 return tcpm_pd_transmit(port, TCPC_TX_SOP, &msg);
f0690a25 drivers/staging/typec/tcpm.c Guenter Roeck 2017-04-27 806 }
f0690a25 drivers/staging/typec/tcpm.c Guenter Roeck 2017-04-27 807
:::::: The code at line 794 was first introduced by commit
:::::: f0690a25a140b853b1842fa80faf828601bb47e8 staging: typec: USB Type-C Port Manager (tcpm)
:::::: TO: Guenter Roeck <groeck@chromium.org>
:::::: CC: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
^ permalink raw reply [flat|nested] 31+ messages in thread
* Re: [PATCH v3 1/7] typec: tcpm: Add PD Rev 3.0 definitions to PD header
@ 2017-12-20 13:48 ` kbuild test robot
0 siblings, 0 replies; 31+ messages in thread
From: kbuild test robot @ 2017-12-20 13:48 UTC (permalink / raw)
To: Adam Thomson
Cc: kbuild-all-JC7UmRfGjtg, Heikki Krogerus, Guenter Roeck,
Greg Kroah-Hartman, Sebastian Reichel, Hans de Goede, Yueyao Zhu,
Rui Miguel Silva, linux-usb-u79uwXL29TY76Z2rM5mHXA,
linux-pm-u79uwXL29TY76Z2rM5mHXA,
linux-kernel-u79uwXL29TY76Z2rM5mHXA,
support.opensource-WBD+wuPFNBhBDgjK7y7TUQ
[-- Attachment #1: Type: text/plain, Size: 6364 bytes --]
Hi Adam,
Thank you for the patch! Yet something to improve:
[auto build test ERROR on next-20171214]
[also build test ERROR on v4.15-rc4]
[cannot apply to usb/usb-testing hwmon/hwmon-next v4.15-rc3 v4.15-rc2 v4.15-rc1]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
url: https://github.com/0day-ci/linux/commits/Adam-Thomson/typec-tcpm-Add-sink-side-support-for-PPS/20171220-205656
config: i386-randconfig-x016-201751 (attached as .config)
compiler: gcc-7 (Debian 7.2.0-12) 7.2.1 20171025
reproduce:
# save the attached .config to linux build tree
make ARCH=i386
Note: the linux-review/Adam-Thomson/typec-tcpm-Add-sink-side-support-for-PPS/20171220-205656 HEAD 79d2ed6a04117216910ac1dad566e86599a0bcf5 builds fine.
It only hurts bisectibility.
All errors (new ones prefixed by >>):
drivers/usb/typec/tcpm.c: In function 'tcpm_pd_send_source_caps':
>> drivers/usb/typec/tcpm.c:794:27: error: macro "PD_HEADER_LE" requires 6 arguments, but only 5 given
port->message_id, 0);
^
>> drivers/usb/typec/tcpm.c:791:16: error: 'PD_HEADER_LE' undeclared (first use in this function)
msg.header = PD_HEADER_LE(PD_CTRL_REJECT,
^~~~~~~~~~~~
drivers/usb/typec/tcpm.c:791:16: note: each undeclared identifier is reported only once for each function it appears in
drivers/usb/typec/tcpm.c:800:24: error: macro "PD_HEADER_LE" requires 6 arguments, but only 5 given
port->nr_src_pdo);
^
drivers/usb/typec/tcpm.c: In function 'tcpm_pd_send_sink_caps':
drivers/usb/typec/tcpm.c:819:27: error: macro "PD_HEADER_LE" requires 6 arguments, but only 5 given
port->message_id, 0);
^
drivers/usb/typec/tcpm.c:816:16: error: 'PD_HEADER_LE' undeclared (first use in this function)
msg.header = PD_HEADER_LE(PD_CTRL_REJECT,
^~~~~~~~~~~~
drivers/usb/typec/tcpm.c:825:24: error: macro "PD_HEADER_LE" requires 6 arguments, but only 5 given
port->nr_snk_pdo);
^
drivers/usb/typec/tcpm.c: In function 'vdm_run_state_machine':
drivers/usb/typec/tcpm.c:1190:41: error: macro "PD_HEADER_LE" requires 6 arguments, but only 5 given
port->message_id, port->vdo_count);
^
drivers/usb/typec/tcpm.c:1187:16: error: 'PD_HEADER_LE' undeclared (first use in this function)
msg.header = PD_HEADER_LE(PD_DATA_VENDOR_DEF,
^~~~~~~~~~~~
drivers/usb/typec/tcpm.c: In function 'tcpm_pd_send_control':
drivers/usb/typec/tcpm.c:1669:26: error: macro "PD_HEADER_LE" requires 6 arguments, but only 5 given
port->message_id, 0);
^
drivers/usb/typec/tcpm.c:1667:15: error: 'PD_HEADER_LE' undeclared (first use in this function)
msg.header = PD_HEADER_LE(type, port->pwr_role,
^~~~~~~~~~~~
drivers/usb/typec/tcpm.c: In function 'tcpm_pd_send_request':
drivers/usb/typec/tcpm.c:1946:26: error: macro "PD_HEADER_LE" requires 6 arguments, but only 5 given
port->message_id, 1);
^
drivers/usb/typec/tcpm.c:1943:15: error: 'PD_HEADER_LE' undeclared (first use in this function)
msg.header = PD_HEADER_LE(PD_DATA_REQUEST,
^~~~~~~~~~~~
vim +/PD_HEADER_LE +794 drivers/usb/typec/tcpm.c
f0690a25 drivers/staging/typec/tcpm.c Guenter Roeck 2017-04-27 782
f0690a25 drivers/staging/typec/tcpm.c Guenter Roeck 2017-04-27 783 static int tcpm_pd_send_source_caps(struct tcpm_port *port)
f0690a25 drivers/staging/typec/tcpm.c Guenter Roeck 2017-04-27 784 {
f0690a25 drivers/staging/typec/tcpm.c Guenter Roeck 2017-04-27 785 struct pd_message msg;
f0690a25 drivers/staging/typec/tcpm.c Guenter Roeck 2017-04-27 786 int i;
f0690a25 drivers/staging/typec/tcpm.c Guenter Roeck 2017-04-27 787
f0690a25 drivers/staging/typec/tcpm.c Guenter Roeck 2017-04-27 788 memset(&msg, 0, sizeof(msg));
f0690a25 drivers/staging/typec/tcpm.c Guenter Roeck 2017-04-27 789 if (!port->nr_src_pdo) {
f0690a25 drivers/staging/typec/tcpm.c Guenter Roeck 2017-04-27 790 /* No source capabilities defined, sink only */
f0690a25 drivers/staging/typec/tcpm.c Guenter Roeck 2017-04-27 @791 msg.header = PD_HEADER_LE(PD_CTRL_REJECT,
f0690a25 drivers/staging/typec/tcpm.c Guenter Roeck 2017-04-27 792 port->pwr_role,
f0690a25 drivers/staging/typec/tcpm.c Guenter Roeck 2017-04-27 793 port->data_role,
f0690a25 drivers/staging/typec/tcpm.c Guenter Roeck 2017-04-27 @794 port->message_id, 0);
f0690a25 drivers/staging/typec/tcpm.c Guenter Roeck 2017-04-27 795 } else {
f0690a25 drivers/staging/typec/tcpm.c Guenter Roeck 2017-04-27 796 msg.header = PD_HEADER_LE(PD_DATA_SOURCE_CAP,
f0690a25 drivers/staging/typec/tcpm.c Guenter Roeck 2017-04-27 797 port->pwr_role,
f0690a25 drivers/staging/typec/tcpm.c Guenter Roeck 2017-04-27 798 port->data_role,
f0690a25 drivers/staging/typec/tcpm.c Guenter Roeck 2017-04-27 799 port->message_id,
f0690a25 drivers/staging/typec/tcpm.c Guenter Roeck 2017-04-27 800 port->nr_src_pdo);
f0690a25 drivers/staging/typec/tcpm.c Guenter Roeck 2017-04-27 801 }
f0690a25 drivers/staging/typec/tcpm.c Guenter Roeck 2017-04-27 802 for (i = 0; i < port->nr_src_pdo; i++)
f0690a25 drivers/staging/typec/tcpm.c Guenter Roeck 2017-04-27 803 msg.payload[i] = cpu_to_le32(port->src_pdo[i]);
f0690a25 drivers/staging/typec/tcpm.c Guenter Roeck 2017-04-27 804
f0690a25 drivers/staging/typec/tcpm.c Guenter Roeck 2017-04-27 805 return tcpm_pd_transmit(port, TCPC_TX_SOP, &msg);
f0690a25 drivers/staging/typec/tcpm.c Guenter Roeck 2017-04-27 806 }
f0690a25 drivers/staging/typec/tcpm.c Guenter Roeck 2017-04-27 807
:::::: The code at line 794 was first introduced by commit
:::::: f0690a25a140b853b1842fa80faf828601bb47e8 staging: typec: USB Type-C Port Manager (tcpm)
:::::: TO: Guenter Roeck <groeck-F7+t8E8rja9g9hUCZPvPmw@public.gmane.org>
:::::: CC: Greg Kroah-Hartman <gregkh-hQyY1W1yCW8ekmWlsbkhG0B+6BGkLq7r@public.gmane.org>
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
[-- Attachment #2: .config.gz --]
[-- Type: application/gzip, Size: 29861 bytes --]
^ permalink raw reply [flat|nested] 31+ messages in thread
* [PATCH] typec: tcpm: fix ptr_ret.cocci warnings
@ 2017-12-20 15:24 ` kbuild test robot
0 siblings, 0 replies; 31+ messages in thread
From: kbuild test robot @ 2017-12-20 15:24 UTC (permalink / raw)
To: Adam Thomson
Cc: kbuild-all, Heikki Krogerus, Guenter Roeck, Greg Kroah-Hartman,
Sebastian Reichel, Hans de Goede, Yueyao Zhu, Rui Miguel Silva,
linux-usb, linux-pm, linux-kernel, support.opensource
From: Fengguang Wu <fengguang.wu@intel.com>
drivers/usb/typec/tcpm.c:4396:1-3: WARNING: PTR_ERR_OR_ZERO can be used
Use PTR_ERR_OR_ZERO rather than if(IS_ERR(...)) + PTR_ERR
Generated by: scripts/coccinelle/api/ptr_ret.cocci
Fixes: 91886adfce05 ("typec: tcpm: Represent source supply through power_supply class")
CC: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
---
tcpm.c | 5 +----
1 file changed, 1 insertion(+), 4 deletions(-)
--- a/drivers/usb/typec/tcpm.c
+++ b/drivers/usb/typec/tcpm.c
@@ -4393,10 +4393,7 @@ int devm_tcpm_psy_register(struct tcpm_p
port->psy = devm_power_supply_register(port->dev, &port->psy_desc,
&psy_cfg);
- if (IS_ERR(port->psy))
- return PTR_ERR(port->psy);
-
- return 0;
+ return PTR_ERR_OR_ZERO(port->psy);
}
struct tcpm_port *tcpm_register_port(struct device *dev, struct tcpc_dev *tcpc)
^ permalink raw reply [flat|nested] 31+ messages in thread
* Re: [PATCH v3 6/7] typec: tcpm: Represent source supply through power_supply class
@ 2017-12-20 15:24 ` kbuild test robot
0 siblings, 0 replies; 31+ messages in thread
From: kbuild test robot @ 2017-12-20 15:24 UTC (permalink / raw)
To: Adam Thomson
Cc: kbuild-all, Heikki Krogerus, Guenter Roeck, Greg Kroah-Hartman,
Sebastian Reichel, Hans de Goede, Yueyao Zhu, Rui Miguel Silva,
linux-usb, linux-pm, linux-kernel, support.opensource
Hi Adam,
Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on next-20171214]
[cannot apply to usb/usb-testing hwmon/hwmon-next v4.15-rc3 v4.15-rc2 v4.15-rc1 v4.15-rc4]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
url: https://github.com/0day-ci/linux/commits/Adam-Thomson/typec-tcpm-Add-sink-side-support-for-PPS/20171220-205656
coccinelle warnings: (new ones prefixed by >>)
>> drivers/usb/typec/tcpm.c:4396:1-3: WARNING: PTR_ERR_OR_ZERO can be used
Please review and possibly fold the followup patch.
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
^ permalink raw reply [flat|nested] 31+ messages in thread
* typec: tcpm: fix ptr_ret.cocci warnings
@ 2017-12-20 15:24 ` kbuild test robot
0 siblings, 0 replies; 31+ messages in thread
From: kbuild test robot @ 2017-12-20 15:24 UTC (permalink / raw)
To: Adam Thomson
Cc: kbuild-all, Heikki Krogerus, Guenter Roeck, Greg Kroah-Hartman,
Sebastian Reichel, Hans de Goede, Yueyao Zhu, Rui Miguel Silva,
linux-usb, linux-pm, linux-kernel, support.opensource
From: Fengguang Wu <fengguang.wu@intel.com>
drivers/usb/typec/tcpm.c:4396:1-3: WARNING: PTR_ERR_OR_ZERO can be used
Use PTR_ERR_OR_ZERO rather than if(IS_ERR(...)) + PTR_ERR
Generated by: scripts/coccinelle/api/ptr_ret.cocci
Fixes: 91886adfce05 ("typec: tcpm: Represent source supply through power_supply class")
CC: Adam Thomson <Adam.Thomson.Opensource@diasemi.com>
Signed-off-by: Fengguang Wu <fengguang.wu@intel.com>
---
tcpm.c | 5 +----
1 file changed, 1 insertion(+), 4 deletions(-)
--
To unsubscribe from this list: send the line "unsubscribe linux-usb" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
--- a/drivers/usb/typec/tcpm.c
+++ b/drivers/usb/typec/tcpm.c
@@ -4393,10 +4393,7 @@ int devm_tcpm_psy_register(struct tcpm_p
port->psy = devm_power_supply_register(port->dev, &port->psy_desc,
&psy_cfg);
- if (IS_ERR(port->psy))
- return PTR_ERR(port->psy);
-
- return 0;
+ return PTR_ERR_OR_ZERO(port->psy);
}
struct tcpm_port *tcpm_register_port(struct device *dev, struct tcpc_dev *tcpc)
^ permalink raw reply [flat|nested] 31+ messages in thread
* [v3,6/7] typec: tcpm: Represent source supply through power_supply class
@ 2017-12-20 15:24 ` kbuild test robot
0 siblings, 0 replies; 31+ messages in thread
From: kbuild test robot @ 2017-12-20 15:24 UTC (permalink / raw)
To: Adam Thomson
Cc: kbuild-all, Heikki Krogerus, Guenter Roeck, Greg Kroah-Hartman,
Sebastian Reichel, Hans de Goede, Yueyao Zhu, Rui Miguel Silva,
linux-usb, linux-pm, linux-kernel, support.opensource
Hi Adam,
Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on next-20171214]
[cannot apply to usb/usb-testing hwmon/hwmon-next v4.15-rc3 v4.15-rc2 v4.15-rc1 v4.15-rc4]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
url: https://github.com/0day-ci/linux/commits/Adam-Thomson/typec-tcpm-Add-sink-side-support-for-PPS/20171220-205656
coccinelle warnings: (new ones prefixed by >>)
>> drivers/usb/typec/tcpm.c:4396:1-3: WARNING: PTR_ERR_OR_ZERO can be used
Please review and possibly fold the followup patch.
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
--
To unsubscribe from this list: send the line "unsubscribe linux-usb" in
the body of a message to majordomo@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
^ permalink raw reply [flat|nested] 31+ messages in thread
* Re: [PATCH v3 6/7] typec: tcpm: Represent source supply through power_supply class
@ 2017-12-20 15:24 ` kbuild test robot
0 siblings, 0 replies; 31+ messages in thread
From: kbuild test robot @ 2017-12-20 15:24 UTC (permalink / raw)
To: Adam Thomson
Cc: kbuild-all-JC7UmRfGjtg, Heikki Krogerus, Guenter Roeck,
Greg Kroah-Hartman, Sebastian Reichel, Hans de Goede, Yueyao Zhu,
Rui Miguel Silva, linux-usb-u79uwXL29TY76Z2rM5mHXA,
linux-pm-u79uwXL29TY76Z2rM5mHXA,
linux-kernel-u79uwXL29TY76Z2rM5mHXA,
support.opensource-WBD+wuPFNBhBDgjK7y7TUQ
Hi Adam,
Thank you for the patch! Perhaps something to improve:
[auto build test WARNING on next-20171214]
[cannot apply to usb/usb-testing hwmon/hwmon-next v4.15-rc3 v4.15-rc2 v4.15-rc1 v4.15-rc4]
[if your patch is applied to the wrong git tree, please drop us a note to help improve the system]
url: https://github.com/0day-ci/linux/commits/Adam-Thomson/typec-tcpm-Add-sink-side-support-for-PPS/20171220-205656
coccinelle warnings: (new ones prefixed by >>)
>> drivers/usb/typec/tcpm.c:4396:1-3: WARNING: PTR_ERR_OR_ZERO can be used
Please review and possibly fold the followup patch.
---
0-DAY kernel test infrastructure Open Source Technology Center
https://lists.01.org/pipermail/kbuild-all Intel Corporation
--
To unsubscribe from this list: send the line "unsubscribe linux-usb" in
the body of a message to majordomo-u79uwXL29TY76Z2rM5mHXA@public.gmane.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
^ permalink raw reply [flat|nested] 31+ messages in thread
end of thread, other threads:[~2017-12-20 15:25 UTC | newest]
Thread overview: 31+ messages (download: mbox.gz / follow: Atom feed)
-- links below jump to the message on this page --
2017-12-18 12:41 [PATCH v3 0/7] typec: tcpm: Add sink side support for PPS Adam Thomson
2017-12-18 12:41 ` Adam Thomson
2017-12-18 12:41 ` [PATCH v3 1/7] typec: tcpm: Add PD Rev 3.0 definitions to PD header Adam Thomson
2017-12-18 12:41 ` Adam Thomson
2017-12-18 12:41 ` [v3,1/7] " Opensource [Adam Thomson]
2017-12-20 13:48 ` [PATCH v3 1/7] " kbuild test robot
2017-12-20 13:48 ` kbuild test robot
2017-12-20 13:48 ` [v3,1/7] " kbuild test robot
2017-12-18 12:41 ` [PATCH v3 2/7] typec: tcpm: Add ADO header for Alert message handling Adam Thomson
2017-12-18 12:41 ` Adam Thomson
2017-12-18 12:41 ` [v3,2/7] " Opensource [Adam Thomson]
2017-12-18 12:41 ` [PATCH v3 3/7] typec: tcpm: Add SDB header for Status " Adam Thomson
2017-12-18 12:41 ` Adam Thomson
2017-12-18 12:41 ` [v3,3/7] " Opensource [Adam Thomson]
2017-12-18 12:41 ` [PATCH v3 4/7] typec: tcpm: Add core support for sink side PPS Adam Thomson
2017-12-18 12:41 ` Adam Thomson
2017-12-18 12:41 ` [v3,4/7] " Opensource [Adam Thomson]
2017-12-18 12:41 ` [PATCH v3 5/7] power: supply: Add 'connected_type' property and supporting code Adam Thomson
2017-12-18 12:41 ` Adam Thomson
2017-12-18 12:41 ` [v3,5/7] " Opensource [Adam Thomson]
2017-12-18 12:41 ` [PATCH v3 6/7] typec: tcpm: Represent source supply through power_supply class Adam Thomson
2017-12-18 12:41 ` Adam Thomson
2017-12-18 12:41 ` [v3,6/7] " Opensource [Adam Thomson]
2017-12-20 15:24 ` [PATCH v3 6/7] " kbuild test robot
2017-12-20 15:24 ` kbuild test robot
2017-12-20 15:24 ` [v3,6/7] " kbuild test robot
2017-12-20 15:24 ` [PATCH] typec: tcpm: fix ptr_ret.cocci warnings kbuild test robot
2017-12-20 15:24 ` kbuild test robot
2017-12-18 12:41 ` [PATCH v3 7/7] typec: tcpm: Add support for sink PPS related messages Adam Thomson
2017-12-18 12:41 ` Adam Thomson
2017-12-18 12:41 ` [v3,7/7] " Opensource [Adam Thomson]
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