diff options
| author | Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> | 2014-04-19 00:22:00 +0100 |
|---|---|---|
| committer | Jonathan Cameron <jic23@kernel.org> | 2014-05-05 10:59:48 +0100 |
| commit | be8e48d67ecdb1cc1234ff4f32a6e5d0002e4672 (patch) | |
| tree | e030386e412ffae9c74a381623ca5db010f2d107 /drivers/iio/orientation/hid-sensor-incl-3d.c | |
| parent | 92463fdab5d8e5f97d96478383c3d3e5385e867b (diff) | |
| download | lwn-be8e48d67ecdb1cc1234ff4f32a6e5d0002e4672.tar.gz lwn-be8e48d67ecdb1cc1234ff4f32a6e5d0002e4672.zip | |
iio: hid-sensors: Inclinometer 3D: adjust scale and offset
Using units and unit exponent to calculate scale which is compliant
to IIO ABI.
Signed-off-by: Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Diffstat (limited to 'drivers/iio/orientation/hid-sensor-incl-3d.c')
| -rw-r--r-- | drivers/iio/orientation/hid-sensor-incl-3d.c | 17 |
1 files changed, 13 insertions, 4 deletions
diff --git a/drivers/iio/orientation/hid-sensor-incl-3d.c b/drivers/iio/orientation/hid-sensor-incl-3d.c index 070feab08faa..f0c465cc192a 100644 --- a/drivers/iio/orientation/hid-sensor-incl-3d.c +++ b/drivers/iio/orientation/hid-sensor-incl-3d.c @@ -42,6 +42,10 @@ struct incl_3d_state { struct hid_sensor_common common_attributes; struct hid_sensor_hub_attribute_info incl[INCLI_3D_CHANNEL_MAX]; u32 incl_val[INCLI_3D_CHANNEL_MAX]; + int scale_pre_decml; + int scale_post_decml; + int scale_precision; + int value_offset; }; static const u32 incl_3d_addresses[INCLI_3D_CHANNEL_MAX] = { @@ -125,12 +129,12 @@ static int incl_3d_read_raw(struct iio_dev *indio_dev, ret_type = IIO_VAL_INT; break; case IIO_CHAN_INFO_SCALE: - *val = incl_state->incl[CHANNEL_SCAN_INDEX_X].units; - ret_type = IIO_VAL_INT; + *val = incl_state->scale_pre_decml; + *val2 = incl_state->scale_post_decml; + ret_type = incl_state->scale_precision; break; case IIO_CHAN_INFO_OFFSET: - *val = hid_sensor_convert_exponent( - incl_state->incl[CHANNEL_SCAN_INDEX_X].unit_expo); + *val = incl_state->value_offset; ret_type = IIO_VAL_INT; break; case IIO_CHAN_INFO_SAMP_FREQ: @@ -279,6 +283,11 @@ static int incl_3d_parse_report(struct platform_device *pdev, st->incl[1].index, st->incl[1].report_id, st->incl[2].index, st->incl[2].report_id); + st->scale_precision = hid_sensor_format_scale( + HID_USAGE_SENSOR_INCLINOMETER_3D, + &st->incl[CHANNEL_SCAN_INDEX_X], + &st->scale_pre_decml, &st->scale_post_decml); + /* Set Sensitivity field ids, when there is no individual modifier */ if (st->common_attributes.sensitivity.index < 0) { sensor_hub_input_get_attribute_info(hsdev, |