| Message ID | 20210120074909.25707-1-xiang.ye@intel.com |
|---|---|
| State | Superseded |
| Headers | show |
| Series | iio: hid-sensor-rotation: Fix quaternion data not correct | expand |
On Wed, 20 Jan 2021 15:49:09 +0800 Ye Xiang <xiang.ye@intel.com> wrote: > Because the data of HID_USAGE_SENSOR_ORIENT_QUATERNION defined by ISH FW > is s16, but quaternion data type is in_rot_quaternion_type(le:s16/32X4>>0), > need to transform data type from s16 to s32 > > Signed-off-by: Ye Xiang <xiang.ye@intel.com> Hi Ye Xiang, So from a quick check of the "HID Sensor Usages" spec, I 'think' that we can only have s16 and s32 for this type of channel in which case this fix is sufficient for all possible cases. Also, please figure out a best estimate for a Fixes: tag as that will help with backporting this. Thanks, Jonathan > --- > drivers/iio/orientation/hid-sensor-rotation.c | 13 ++++++++++--- > 1 file changed, 10 insertions(+), 3 deletions(-) > > diff --git a/drivers/iio/orientation/hid-sensor-rotation.c b/drivers/iio/orientation/hid-sensor-rotation.c > index b0245b3b7ffc..cf7f57a47681 100644 > --- a/drivers/iio/orientation/hid-sensor-rotation.c > +++ b/drivers/iio/orientation/hid-sensor-rotation.c > @@ -21,7 +21,7 @@ struct dev_rot_state { > struct hid_sensor_common common_attributes; > struct hid_sensor_hub_attribute_info quaternion; > struct { > - u32 sampled_vals[4] __aligned(16); > + s32 sampled_vals[4] __aligned(16); > u64 timestamp __aligned(8); > } scan; > int scale_pre_decml; > @@ -175,8 +175,15 @@ static int dev_rot_capture_sample(struct hid_sensor_hub_device *hsdev, > struct dev_rot_state *rot_state = iio_priv(indio_dev); > > if (usage_id == HID_USAGE_SENSOR_ORIENT_QUATERNION) { > - memcpy(&rot_state->scan.sampled_vals, raw_data, > - sizeof(rot_state->scan.sampled_vals)); > + if (raw_len / 4 == sizeof(s16)) { > + rot_state->scan.sampled_vals[0] = ((s16 *)raw_data)[0]; > + rot_state->scan.sampled_vals[1] = ((s16 *)raw_data)[1]; > + rot_state->scan.sampled_vals[2] = ((s16 *)raw_data)[2]; > + rot_state->scan.sampled_vals[3] = ((s16 *)raw_data)[3]; > + } else { > + memcpy(&rot_state->scan.sampled_vals, raw_data, > + sizeof(rot_state->scan.sampled_vals)); > + } > > dev_dbg(&indio_dev->dev, "Recd Quat len:%zu::%zu\n", raw_len, > sizeof(rot_state->scan.sampled_vals));
diff --git a/drivers/iio/orientation/hid-sensor-rotation.c b/drivers/iio/orientation/hid-sensor-rotation.c index b0245b3b7ffc..cf7f57a47681 100644 --- a/drivers/iio/orientation/hid-sensor-rotation.c +++ b/drivers/iio/orientation/hid-sensor-rotation.c @@ -21,7 +21,7 @@ struct dev_rot_state { struct hid_sensor_common common_attributes; struct hid_sensor_hub_attribute_info quaternion; struct { - u32 sampled_vals[4] __aligned(16); + s32 sampled_vals[4] __aligned(16); u64 timestamp __aligned(8); } scan; int scale_pre_decml; @@ -175,8 +175,15 @@ static int dev_rot_capture_sample(struct hid_sensor_hub_device *hsdev, struct dev_rot_state *rot_state = iio_priv(indio_dev); if (usage_id == HID_USAGE_SENSOR_ORIENT_QUATERNION) { - memcpy(&rot_state->scan.sampled_vals, raw_data, - sizeof(rot_state->scan.sampled_vals)); + if (raw_len / 4 == sizeof(s16)) { + rot_state->scan.sampled_vals[0] = ((s16 *)raw_data)[0]; + rot_state->scan.sampled_vals[1] = ((s16 *)raw_data)[1]; + rot_state->scan.sampled_vals[2] = ((s16 *)raw_data)[2]; + rot_state->scan.sampled_vals[3] = ((s16 *)raw_data)[3]; + } else { + memcpy(&rot_state->scan.sampled_vals, raw_data, + sizeof(rot_state->scan.sampled_vals)); + } dev_dbg(&indio_dev->dev, "Recd Quat len:%zu::%zu\n", raw_len, sizeof(rot_state->scan.sampled_vals));
Because the data of HID_USAGE_SENSOR_ORIENT_QUATERNION defined by ISH FW is s16, but quaternion data type is in_rot_quaternion_type(le:s16/32X4>>0), need to transform data type from s16 to s32 Signed-off-by: Ye Xiang <xiang.ye@intel.com> --- drivers/iio/orientation/hid-sensor-rotation.c | 13 ++++++++++--- 1 file changed, 10 insertions(+), 3 deletions(-)