* [PATCH v2] Asynchronous attribute reads
@ 2015-02-19 23:33 Srinivas Pandruvada
2015-02-19 23:33 ` [PATCH v2] HID: hid-sensor-hub: Extend API for async reads Srinivas Pandruvada
2015-02-23 14:17 ` [PATCH v2] Asynchronous attribute reads Jiri Kosina
0 siblings, 2 replies; 4+ messages in thread
From: Srinivas Pandruvada @ 2015-02-19 23:33 UTC (permalink / raw)
To: jkosina, jic23; +Cc: linux-input, Srinivas Pandruvada
v2
As suggested by Jonathan reversed the logic for sync/async and
moved sensor_hub_report to begining of the function
v1
Squashed into a single patch for bisectability.
v0
Separate patches for each driver/module
Srinivas Pandruvada (1):
HID: hid-sensor-hub: Extend API for async reads
drivers/hid/hid-sensor-hub.c | 65 ++++++++++++++-------------
drivers/iio/accel/hid-sensor-accel-3d.c | 3 +-
drivers/iio/gyro/hid-sensor-gyro-3d.c | 3 +-
drivers/iio/light/hid-sensor-als.c | 3 +-
drivers/iio/light/hid-sensor-prox.c | 3 +-
drivers/iio/magnetometer/hid-sensor-magn-3d.c | 3 +-
drivers/iio/orientation/hid-sensor-incl-3d.c | 3 +-
drivers/iio/pressure/hid-sensor-press.c | 3 +-
drivers/rtc/rtc-hid-sensor-time.c | 2 +-
include/linux/hid-sensor-hub.h | 19 +++++---
10 files changed, 63 insertions(+), 44 deletions(-)
--
1.9.1
^ permalink raw reply [flat|nested] 4+ messages in thread
* [PATCH v2] HID: hid-sensor-hub: Extend API for async reads
2015-02-19 23:33 [PATCH v2] Asynchronous attribute reads Srinivas Pandruvada
@ 2015-02-19 23:33 ` Srinivas Pandruvada
2015-02-21 19:03 ` Jonathan Cameron
2015-02-23 14:17 ` [PATCH v2] Asynchronous attribute reads Jiri Kosina
1 sibling, 1 reply; 4+ messages in thread
From: Srinivas Pandruvada @ 2015-02-19 23:33 UTC (permalink / raw)
To: jkosina, jic23; +Cc: linux-input, Srinivas Pandruvada
Add additional flag to read in async mode. In this mode the caller will get
reply via registered callback for capture_sample. Callbacks can be registered
using sensor_hub_register_callback function. The usage id parameter of the
capture_sample can be matched with the usage id of the requested attribute.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
---
drivers/hid/hid-sensor-hub.c | 65 ++++++++++++++-------------
drivers/iio/accel/hid-sensor-accel-3d.c | 3 +-
drivers/iio/gyro/hid-sensor-gyro-3d.c | 3 +-
drivers/iio/light/hid-sensor-als.c | 3 +-
drivers/iio/light/hid-sensor-prox.c | 3 +-
drivers/iio/magnetometer/hid-sensor-magn-3d.c | 3 +-
drivers/iio/orientation/hid-sensor-incl-3d.c | 3 +-
drivers/iio/pressure/hid-sensor-press.c | 3 +-
drivers/rtc/rtc-hid-sensor-time.c | 2 +-
include/linux/hid-sensor-hub.h | 19 +++++---
10 files changed, 63 insertions(+), 44 deletions(-)
diff --git a/drivers/hid/hid-sensor-hub.c b/drivers/hid/hid-sensor-hub.c
index b855a60..e19be62 100644
--- a/drivers/hid/hid-sensor-hub.c
+++ b/drivers/hid/hid-sensor-hub.c
@@ -252,48 +252,53 @@ EXPORT_SYMBOL_GPL(sensor_hub_get_feature);
int sensor_hub_input_attr_get_raw_value(struct hid_sensor_hub_device *hsdev,
u32 usage_id,
- u32 attr_usage_id, u32 report_id)
+ u32 attr_usage_id, u32 report_id,
+ enum sensor_hub_read_flags flag)
{
struct sensor_hub_data *data = hid_get_drvdata(hsdev->hdev);
unsigned long flags;
struct hid_report *report;
int ret_val = 0;
- mutex_lock(&hsdev->mutex);
- memset(&hsdev->pending, 0, sizeof(hsdev->pending));
- init_completion(&hsdev->pending.ready);
- hsdev->pending.usage_id = usage_id;
- hsdev->pending.attr_usage_id = attr_usage_id;
- hsdev->pending.raw_size = 0;
-
- spin_lock_irqsave(&data->lock, flags);
- hsdev->pending.status = true;
- spin_unlock_irqrestore(&data->lock, flags);
- report = sensor_hub_report(report_id, hsdev->hdev, HID_INPUT_REPORT);
+ report = sensor_hub_report(report_id, hsdev->hdev,
+ HID_INPUT_REPORT);
if (!report)
- goto err_free;
+ return -EINVAL;
+ mutex_lock(&hsdev->mutex);
+ if (flag == SENSOR_HUB_SYNC) {
+ memset(&hsdev->pending, 0, sizeof(hsdev->pending));
+ init_completion(&hsdev->pending.ready);
+ hsdev->pending.usage_id = usage_id;
+ hsdev->pending.attr_usage_id = attr_usage_id;
+ hsdev->pending.raw_size = 0;
+
+ spin_lock_irqsave(&data->lock, flags);
+ hsdev->pending.status = true;
+ spin_unlock_irqrestore(&data->lock, flags);
+ }
mutex_lock(&data->mutex);
hid_hw_request(hsdev->hdev, report, HID_REQ_GET_REPORT);
mutex_unlock(&data->mutex);
- wait_for_completion_interruptible_timeout(&hsdev->pending.ready, HZ*5);
- switch (hsdev->pending.raw_size) {
- case 1:
- ret_val = *(u8 *)hsdev->pending.raw_data;
- break;
- case 2:
- ret_val = *(u16 *)hsdev->pending.raw_data;
- break;
- case 4:
- ret_val = *(u32 *)hsdev->pending.raw_data;
- break;
- default:
- ret_val = 0;
+ if (flag == SENSOR_HUB_SYNC) {
+ wait_for_completion_interruptible_timeout(
+ &hsdev->pending.ready, HZ*5);
+ switch (hsdev->pending.raw_size) {
+ case 1:
+ ret_val = *(u8 *)hsdev->pending.raw_data;
+ break;
+ case 2:
+ ret_val = *(u16 *)hsdev->pending.raw_data;
+ break;
+ case 4:
+ ret_val = *(u32 *)hsdev->pending.raw_data;
+ break;
+ default:
+ ret_val = 0;
+ }
+ kfree(hsdev->pending.raw_data);
+ hsdev->pending.status = false;
}
- kfree(hsdev->pending.raw_data);
-
-err_free:
- hsdev->pending.status = false;
mutex_unlock(&hsdev->mutex);
return ret_val;
diff --git a/drivers/iio/accel/hid-sensor-accel-3d.c b/drivers/iio/accel/hid-sensor-accel-3d.c
index d5d9531..0085c2f 100644
--- a/drivers/iio/accel/hid-sensor-accel-3d.c
+++ b/drivers/iio/accel/hid-sensor-accel-3d.c
@@ -130,7 +130,8 @@ static int accel_3d_read_raw(struct iio_dev *indio_dev,
*val = sensor_hub_input_attr_get_raw_value(
accel_state->common_attributes.hsdev,
HID_USAGE_SENSOR_ACCEL_3D, address,
- report_id);
+ report_id,
+ SENSOR_HUB_SYNC);
else {
*val = 0;
hid_sensor_power_state(&accel_state->common_attributes,
diff --git a/drivers/iio/gyro/hid-sensor-gyro-3d.c b/drivers/iio/gyro/hid-sensor-gyro-3d.c
index a3ea1e8..bdcd105 100644
--- a/drivers/iio/gyro/hid-sensor-gyro-3d.c
+++ b/drivers/iio/gyro/hid-sensor-gyro-3d.c
@@ -130,7 +130,8 @@ static int gyro_3d_read_raw(struct iio_dev *indio_dev,
*val = sensor_hub_input_attr_get_raw_value(
gyro_state->common_attributes.hsdev,
HID_USAGE_SENSOR_GYRO_3D, address,
- report_id);
+ report_id,
+ SENSOR_HUB_SYNC);
else {
*val = 0;
hid_sensor_power_state(&gyro_state->common_attributes,
diff --git a/drivers/iio/light/hid-sensor-als.c b/drivers/iio/light/hid-sensor-als.c
index a5283d7..321862d 100644
--- a/drivers/iio/light/hid-sensor-als.c
+++ b/drivers/iio/light/hid-sensor-als.c
@@ -109,7 +109,8 @@ static int als_read_raw(struct iio_dev *indio_dev,
*val = sensor_hub_input_attr_get_raw_value(
als_state->common_attributes.hsdev,
HID_USAGE_SENSOR_ALS, address,
- report_id);
+ report_id,
+ SENSOR_HUB_SYNC);
hid_sensor_power_state(&als_state->common_attributes,
false);
} else {
diff --git a/drivers/iio/light/hid-sensor-prox.c b/drivers/iio/light/hid-sensor-prox.c
index f5a5146..db9c60e 100644
--- a/drivers/iio/light/hid-sensor-prox.c
+++ b/drivers/iio/light/hid-sensor-prox.c
@@ -105,7 +105,8 @@ static int prox_read_raw(struct iio_dev *indio_dev,
*val = sensor_hub_input_attr_get_raw_value(
prox_state->common_attributes.hsdev,
HID_USAGE_SENSOR_PROX, address,
- report_id);
+ report_id,
+ SENSOR_HUB_SYNC);
hid_sensor_power_state(&prox_state->common_attributes,
false);
} else {
diff --git a/drivers/iio/magnetometer/hid-sensor-magn-3d.c b/drivers/iio/magnetometer/hid-sensor-magn-3d.c
index 6294575..4d299f3 100644
--- a/drivers/iio/magnetometer/hid-sensor-magn-3d.c
+++ b/drivers/iio/magnetometer/hid-sensor-magn-3d.c
@@ -178,7 +178,8 @@ static int magn_3d_read_raw(struct iio_dev *indio_dev,
*val = sensor_hub_input_attr_get_raw_value(
magn_state->common_attributes.hsdev,
HID_USAGE_SENSOR_COMPASS_3D, address,
- report_id);
+ report_id,
+ SENSOR_HUB_SYNC);
else {
*val = 0;
hid_sensor_power_state(&magn_state->common_attributes,
diff --git a/drivers/iio/orientation/hid-sensor-incl-3d.c b/drivers/iio/orientation/hid-sensor-incl-3d.c
index 1ff181b..45bed08 100644
--- a/drivers/iio/orientation/hid-sensor-incl-3d.c
+++ b/drivers/iio/orientation/hid-sensor-incl-3d.c
@@ -132,7 +132,8 @@ static int incl_3d_read_raw(struct iio_dev *indio_dev,
*val = sensor_hub_input_attr_get_raw_value(
incl_state->common_attributes.hsdev,
HID_USAGE_SENSOR_INCLINOMETER_3D, address,
- report_id);
+ report_id,
+ SENSOR_HUB_SYNC);
else {
hid_sensor_power_state(&incl_state->common_attributes,
false);
diff --git a/drivers/iio/pressure/hid-sensor-press.c b/drivers/iio/pressure/hid-sensor-press.c
index 7649286..ac150f0 100644
--- a/drivers/iio/pressure/hid-sensor-press.c
+++ b/drivers/iio/pressure/hid-sensor-press.c
@@ -108,7 +108,8 @@ static int press_read_raw(struct iio_dev *indio_dev,
*val = sensor_hub_input_attr_get_raw_value(
press_state->common_attributes.hsdev,
HID_USAGE_SENSOR_PRESSURE, address,
- report_id);
+ report_id,
+ SENSOR_HUB_SYNC);
hid_sensor_power_state(&press_state->common_attributes,
false);
} else {
diff --git a/drivers/rtc/rtc-hid-sensor-time.c b/drivers/rtc/rtc-hid-sensor-time.c
index ae7c2ba..af4f85a 100644
--- a/drivers/rtc/rtc-hid-sensor-time.c
+++ b/drivers/rtc/rtc-hid-sensor-time.c
@@ -213,7 +213,7 @@ static int hid_rtc_read_time(struct device *dev, struct rtc_time *tm)
/* get a report with all values through requesting one value */
sensor_hub_input_attr_get_raw_value(time_state->common_attributes.hsdev,
HID_USAGE_SENSOR_TIME, hid_time_addresses[0],
- time_state->info[0].report_id);
+ time_state->info[0].report_id, SENSOR_HUB_SYNC);
/* wait for all values (event) */
ret = wait_for_completion_killable_timeout(
&time_state->comp_last_time, HZ*6);
diff --git a/include/linux/hid-sensor-hub.h b/include/linux/hid-sensor-hub.h
index 0b21c4f..57acc44 100644
--- a/include/linux/hid-sensor-hub.h
+++ b/include/linux/hid-sensor-hub.h
@@ -171,20 +171,27 @@ int sensor_hub_input_get_attribute_info(struct hid_sensor_hub_device *hsdev,
struct hid_sensor_hub_attribute_info *info);
/**
-* sensor_hub_input_attr_get_raw_value() - Synchronous read request
+* sensor_hub_input_attr_get_raw_value() - Attribute read request
* @hsdev: Hub device instance.
* @usage_id: Attribute usage id of parent physical device as per spec
* @attr_usage_id: Attribute usage id as per spec
* @report_id: Report id to look for
+* @flag: Synchronour or asynchronous read
*
-* Issues a synchronous read request for an input attribute. Returns
-* data upto 32 bits. Since client can get events, so this call should
-* not be used for data paths, this will impact performance.
+* Issues a synchronous or asynchronous read request for an input attribute.
+* Returns data upto 32 bits.
*/
+enum sensor_hub_read_flags {
+ SENSOR_HUB_SYNC,
+ SENSOR_HUB_ASYNC,
+};
+
int sensor_hub_input_attr_get_raw_value(struct hid_sensor_hub_device *hsdev,
- u32 usage_id,
- u32 attr_usage_id, u32 report_id);
+ u32 usage_id,
+ u32 attr_usage_id, u32 report_id,
+ enum sensor_hub_read_flags flag
+);
/**
* sensor_hub_set_feature() - Feature set request
* @hsdev: Hub device instance.
--
1.9.1
^ permalink raw reply related [flat|nested] 4+ messages in thread
* Re: [PATCH v2] HID: hid-sensor-hub: Extend API for async reads
2015-02-19 23:33 ` [PATCH v2] HID: hid-sensor-hub: Extend API for async reads Srinivas Pandruvada
@ 2015-02-21 19:03 ` Jonathan Cameron
0 siblings, 0 replies; 4+ messages in thread
From: Jonathan Cameron @ 2015-02-21 19:03 UTC (permalink / raw)
To: Srinivas Pandruvada, jkosina; +Cc: linux-input
On 19/02/15 23:33, Srinivas Pandruvada wrote:
> Add additional flag to read in async mode. In this mode the caller will get
> reply via registered callback for capture_sample. Callbacks can be registered
> using sensor_hub_register_callback function. The usage id parameter of the
> capture_sample can be matched with the usage id of the requested attribute.
>
> Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
A trivial typo in a comment inline...
Otherwise,
Acked-by: Jonathan Cameron <jic23@kernel.org>
> ---
> drivers/hid/hid-sensor-hub.c | 65 ++++++++++++++-------------
> drivers/iio/accel/hid-sensor-accel-3d.c | 3 +-
> drivers/iio/gyro/hid-sensor-gyro-3d.c | 3 +-
> drivers/iio/light/hid-sensor-als.c | 3 +-
> drivers/iio/light/hid-sensor-prox.c | 3 +-
> drivers/iio/magnetometer/hid-sensor-magn-3d.c | 3 +-
> drivers/iio/orientation/hid-sensor-incl-3d.c | 3 +-
> drivers/iio/pressure/hid-sensor-press.c | 3 +-
> drivers/rtc/rtc-hid-sensor-time.c | 2 +-
> include/linux/hid-sensor-hub.h | 19 +++++---
> 10 files changed, 63 insertions(+), 44 deletions(-)
>
> diff --git a/drivers/hid/hid-sensor-hub.c b/drivers/hid/hid-sensor-hub.c
> index b855a60..e19be62 100644
> --- a/drivers/hid/hid-sensor-hub.c
> +++ b/drivers/hid/hid-sensor-hub.c
> @@ -252,48 +252,53 @@ EXPORT_SYMBOL_GPL(sensor_hub_get_feature);
>
> int sensor_hub_input_attr_get_raw_value(struct hid_sensor_hub_device *hsdev,
> u32 usage_id,
> - u32 attr_usage_id, u32 report_id)
> + u32 attr_usage_id, u32 report_id,
> + enum sensor_hub_read_flags flag)
> {
> struct sensor_hub_data *data = hid_get_drvdata(hsdev->hdev);
> unsigned long flags;
> struct hid_report *report;
> int ret_val = 0;
>
> - mutex_lock(&hsdev->mutex);
> - memset(&hsdev->pending, 0, sizeof(hsdev->pending));
> - init_completion(&hsdev->pending.ready);
> - hsdev->pending.usage_id = usage_id;
> - hsdev->pending.attr_usage_id = attr_usage_id;
> - hsdev->pending.raw_size = 0;
> -
> - spin_lock_irqsave(&data->lock, flags);
> - hsdev->pending.status = true;
> - spin_unlock_irqrestore(&data->lock, flags);
> - report = sensor_hub_report(report_id, hsdev->hdev, HID_INPUT_REPORT);
> + report = sensor_hub_report(report_id, hsdev->hdev,
> + HID_INPUT_REPORT);
> if (!report)
> - goto err_free;
> + return -EINVAL;
>
> + mutex_lock(&hsdev->mutex);
> + if (flag == SENSOR_HUB_SYNC) {
> + memset(&hsdev->pending, 0, sizeof(hsdev->pending));
> + init_completion(&hsdev->pending.ready);
> + hsdev->pending.usage_id = usage_id;
> + hsdev->pending.attr_usage_id = attr_usage_id;
> + hsdev->pending.raw_size = 0;
> +
> + spin_lock_irqsave(&data->lock, flags);
> + hsdev->pending.status = true;
> + spin_unlock_irqrestore(&data->lock, flags);
> + }
> mutex_lock(&data->mutex);
> hid_hw_request(hsdev->hdev, report, HID_REQ_GET_REPORT);
> mutex_unlock(&data->mutex);
> - wait_for_completion_interruptible_timeout(&hsdev->pending.ready, HZ*5);
> - switch (hsdev->pending.raw_size) {
> - case 1:
> - ret_val = *(u8 *)hsdev->pending.raw_data;
> - break;
> - case 2:
> - ret_val = *(u16 *)hsdev->pending.raw_data;
> - break;
> - case 4:
> - ret_val = *(u32 *)hsdev->pending.raw_data;
> - break;
> - default:
> - ret_val = 0;
> + if (flag == SENSOR_HUB_SYNC) {
> + wait_for_completion_interruptible_timeout(
> + &hsdev->pending.ready, HZ*5);
> + switch (hsdev->pending.raw_size) {
> + case 1:
> + ret_val = *(u8 *)hsdev->pending.raw_data;
> + break;
> + case 2:
> + ret_val = *(u16 *)hsdev->pending.raw_data;
> + break;
> + case 4:
> + ret_val = *(u32 *)hsdev->pending.raw_data;
> + break;
> + default:
> + ret_val = 0;
> + }
> + kfree(hsdev->pending.raw_data);
> + hsdev->pending.status = false;
> }
> - kfree(hsdev->pending.raw_data);
> -
> -err_free:
> - hsdev->pending.status = false;
> mutex_unlock(&hsdev->mutex);
>
> return ret_val;
> diff --git a/drivers/iio/accel/hid-sensor-accel-3d.c b/drivers/iio/accel/hid-sensor-accel-3d.c
> index d5d9531..0085c2f 100644
> --- a/drivers/iio/accel/hid-sensor-accel-3d.c
> +++ b/drivers/iio/accel/hid-sensor-accel-3d.c
> @@ -130,7 +130,8 @@ static int accel_3d_read_raw(struct iio_dev *indio_dev,
> *val = sensor_hub_input_attr_get_raw_value(
> accel_state->common_attributes.hsdev,
> HID_USAGE_SENSOR_ACCEL_3D, address,
> - report_id);
> + report_id,
> + SENSOR_HUB_SYNC);
> else {
> *val = 0;
> hid_sensor_power_state(&accel_state->common_attributes,
> diff --git a/drivers/iio/gyro/hid-sensor-gyro-3d.c b/drivers/iio/gyro/hid-sensor-gyro-3d.c
> index a3ea1e8..bdcd105 100644
> --- a/drivers/iio/gyro/hid-sensor-gyro-3d.c
> +++ b/drivers/iio/gyro/hid-sensor-gyro-3d.c
> @@ -130,7 +130,8 @@ static int gyro_3d_read_raw(struct iio_dev *indio_dev,
> *val = sensor_hub_input_attr_get_raw_value(
> gyro_state->common_attributes.hsdev,
> HID_USAGE_SENSOR_GYRO_3D, address,
> - report_id);
> + report_id,
> + SENSOR_HUB_SYNC);
> else {
> *val = 0;
> hid_sensor_power_state(&gyro_state->common_attributes,
> diff --git a/drivers/iio/light/hid-sensor-als.c b/drivers/iio/light/hid-sensor-als.c
> index a5283d7..321862d 100644
> --- a/drivers/iio/light/hid-sensor-als.c
> +++ b/drivers/iio/light/hid-sensor-als.c
> @@ -109,7 +109,8 @@ static int als_read_raw(struct iio_dev *indio_dev,
> *val = sensor_hub_input_attr_get_raw_value(
> als_state->common_attributes.hsdev,
> HID_USAGE_SENSOR_ALS, address,
> - report_id);
> + report_id,
> + SENSOR_HUB_SYNC);
> hid_sensor_power_state(&als_state->common_attributes,
> false);
> } else {
> diff --git a/drivers/iio/light/hid-sensor-prox.c b/drivers/iio/light/hid-sensor-prox.c
> index f5a5146..db9c60e 100644
> --- a/drivers/iio/light/hid-sensor-prox.c
> +++ b/drivers/iio/light/hid-sensor-prox.c
> @@ -105,7 +105,8 @@ static int prox_read_raw(struct iio_dev *indio_dev,
> *val = sensor_hub_input_attr_get_raw_value(
> prox_state->common_attributes.hsdev,
> HID_USAGE_SENSOR_PROX, address,
> - report_id);
> + report_id,
> + SENSOR_HUB_SYNC);
> hid_sensor_power_state(&prox_state->common_attributes,
> false);
> } else {
> diff --git a/drivers/iio/magnetometer/hid-sensor-magn-3d.c b/drivers/iio/magnetometer/hid-sensor-magn-3d.c
> index 6294575..4d299f3 100644
> --- a/drivers/iio/magnetometer/hid-sensor-magn-3d.c
> +++ b/drivers/iio/magnetometer/hid-sensor-magn-3d.c
> @@ -178,7 +178,8 @@ static int magn_3d_read_raw(struct iio_dev *indio_dev,
> *val = sensor_hub_input_attr_get_raw_value(
> magn_state->common_attributes.hsdev,
> HID_USAGE_SENSOR_COMPASS_3D, address,
> - report_id);
> + report_id,
> + SENSOR_HUB_SYNC);
> else {
> *val = 0;
> hid_sensor_power_state(&magn_state->common_attributes,
> diff --git a/drivers/iio/orientation/hid-sensor-incl-3d.c b/drivers/iio/orientation/hid-sensor-incl-3d.c
> index 1ff181b..45bed08 100644
> --- a/drivers/iio/orientation/hid-sensor-incl-3d.c
> +++ b/drivers/iio/orientation/hid-sensor-incl-3d.c
> @@ -132,7 +132,8 @@ static int incl_3d_read_raw(struct iio_dev *indio_dev,
> *val = sensor_hub_input_attr_get_raw_value(
> incl_state->common_attributes.hsdev,
> HID_USAGE_SENSOR_INCLINOMETER_3D, address,
> - report_id);
> + report_id,
> + SENSOR_HUB_SYNC);
> else {
> hid_sensor_power_state(&incl_state->common_attributes,
> false);
> diff --git a/drivers/iio/pressure/hid-sensor-press.c b/drivers/iio/pressure/hid-sensor-press.c
> index 7649286..ac150f0 100644
> --- a/drivers/iio/pressure/hid-sensor-press.c
> +++ b/drivers/iio/pressure/hid-sensor-press.c
> @@ -108,7 +108,8 @@ static int press_read_raw(struct iio_dev *indio_dev,
> *val = sensor_hub_input_attr_get_raw_value(
> press_state->common_attributes.hsdev,
> HID_USAGE_SENSOR_PRESSURE, address,
> - report_id);
> + report_id,
> + SENSOR_HUB_SYNC);
> hid_sensor_power_state(&press_state->common_attributes,
> false);
> } else {
> diff --git a/drivers/rtc/rtc-hid-sensor-time.c b/drivers/rtc/rtc-hid-sensor-time.c
> index ae7c2ba..af4f85a 100644
> --- a/drivers/rtc/rtc-hid-sensor-time.c
> +++ b/drivers/rtc/rtc-hid-sensor-time.c
> @@ -213,7 +213,7 @@ static int hid_rtc_read_time(struct device *dev, struct rtc_time *tm)
> /* get a report with all values through requesting one value */
> sensor_hub_input_attr_get_raw_value(time_state->common_attributes.hsdev,
> HID_USAGE_SENSOR_TIME, hid_time_addresses[0],
> - time_state->info[0].report_id);
> + time_state->info[0].report_id, SENSOR_HUB_SYNC);
> /* wait for all values (event) */
> ret = wait_for_completion_killable_timeout(
> &time_state->comp_last_time, HZ*6);
> diff --git a/include/linux/hid-sensor-hub.h b/include/linux/hid-sensor-hub.h
> index 0b21c4f..57acc44 100644
> --- a/include/linux/hid-sensor-hub.h
> +++ b/include/linux/hid-sensor-hub.h
> @@ -171,20 +171,27 @@ int sensor_hub_input_get_attribute_info(struct hid_sensor_hub_device *hsdev,
> struct hid_sensor_hub_attribute_info *info);
>
> /**
> -* sensor_hub_input_attr_get_raw_value() - Synchronous read request
> +* sensor_hub_input_attr_get_raw_value() - Attribute read request
> * @hsdev: Hub device instance.
> * @usage_id: Attribute usage id of parent physical device as per spec
> * @attr_usage_id: Attribute usage id as per spec
> * @report_id: Report id to look for
> +* @flag: Synchronour or asynchronous read
typo Synchronous
> *
> -* Issues a synchronous read request for an input attribute. Returns
> -* data upto 32 bits. Since client can get events, so this call should
> -* not be used for data paths, this will impact performance.
> +* Issues a synchronous or asynchronous read request for an input attribute.
> +* Returns data upto 32 bits.
> */
>
> +enum sensor_hub_read_flags {
> + SENSOR_HUB_SYNC,
> + SENSOR_HUB_ASYNC,
> +};
> +
> int sensor_hub_input_attr_get_raw_value(struct hid_sensor_hub_device *hsdev,
> - u32 usage_id,
> - u32 attr_usage_id, u32 report_id);
> + u32 usage_id,
> + u32 attr_usage_id, u32 report_id,
> + enum sensor_hub_read_flags flag
> +);
> /**
> * sensor_hub_set_feature() - Feature set request
> * @hsdev: Hub device instance.
>
^ permalink raw reply [flat|nested] 4+ messages in thread
* Re: [PATCH v2] Asynchronous attribute reads
2015-02-19 23:33 [PATCH v2] Asynchronous attribute reads Srinivas Pandruvada
2015-02-19 23:33 ` [PATCH v2] HID: hid-sensor-hub: Extend API for async reads Srinivas Pandruvada
@ 2015-02-23 14:17 ` Jiri Kosina
1 sibling, 0 replies; 4+ messages in thread
From: Jiri Kosina @ 2015-02-23 14:17 UTC (permalink / raw)
To: Srinivas Pandruvada; +Cc: jic23, linux-input
On Thu, 19 Feb 2015, Srinivas Pandruvada wrote:
> v2
> As suggested by Jonathan reversed the logic for sync/async and
> moved sensor_hub_report to begining of the function
>
> v1
> Squashed into a single patch for bisectability.
>
> v0
> Separate patches for each driver/module
Applied.
>
>
> Srinivas Pandruvada (1):
> HID: hid-sensor-hub: Extend API for async reads
>
> drivers/hid/hid-sensor-hub.c | 65 ++++++++++++++-------------
> drivers/iio/accel/hid-sensor-accel-3d.c | 3 +-
> drivers/iio/gyro/hid-sensor-gyro-3d.c | 3 +-
> drivers/iio/light/hid-sensor-als.c | 3 +-
> drivers/iio/light/hid-sensor-prox.c | 3 +-
> drivers/iio/magnetometer/hid-sensor-magn-3d.c | 3 +-
> drivers/iio/orientation/hid-sensor-incl-3d.c | 3 +-
> drivers/iio/pressure/hid-sensor-press.c | 3 +-
> drivers/rtc/rtc-hid-sensor-time.c | 2 +-
> include/linux/hid-sensor-hub.h | 19 +++++---
> 10 files changed, 63 insertions(+), 44 deletions(-)
--
Jiri Kosina
SUSE Labs
^ permalink raw reply [flat|nested] 4+ messages in thread
end of thread, other threads:[~2015-02-23 14:17 UTC | newest]
Thread overview: 4+ messages (download: mbox.gz follow: Atom feed
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2015-02-19 23:33 [PATCH v2] Asynchronous attribute reads Srinivas Pandruvada
2015-02-19 23:33 ` [PATCH v2] HID: hid-sensor-hub: Extend API for async reads Srinivas Pandruvada
2015-02-21 19:03 ` Jonathan Cameron
2015-02-23 14:17 ` [PATCH v2] Asynchronous attribute reads Jiri Kosina
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