From abea9c62c32fabb9f712f01cbf12ce24694eca88 Mon Sep 17 00:00:00 2001 From: Reyad Attiyat Date: Thu, 17 Jul 2014 19:18:00 +0100 Subject: [PATCH] iio: hid-sensor-magn-3d: Add support for rotation from north Add the HID usage attribute ID's and IIO channel info for rotation from north support. Signed-off-by: Reyad Attiyat Acked-by: Srinivas Pandruvada Signed-off-by: Jonathan Cameron --- drivers/iio/magnetometer/hid-sensor-magn-3d.c | 53 ++++++++++++++++++- 1 file changed, 52 insertions(+), 1 deletion(-) diff --git a/drivers/iio/magnetometer/hid-sensor-magn-3d.c b/drivers/iio/magnetometer/hid-sensor-magn-3d.c index c0a659cc6715..ad83cf293b15 100644 --- a/drivers/iio/magnetometer/hid-sensor-magn-3d.c +++ b/drivers/iio/magnetometer/hid-sensor-magn-3d.c @@ -35,6 +35,10 @@ enum magn_3d_channel { CHANNEL_SCAN_INDEX_X, CHANNEL_SCAN_INDEX_Y, CHANNEL_SCAN_INDEX_Z, + CHANNEL_SCAN_INDEX_NORTH_MAGN_TILT_COMP, + CHANNEL_SCAN_INDEX_NORTH_TRUE_TILT_COMP, + CHANNEL_SCAN_INDEX_NORTH_MAGN, + CHANNEL_SCAN_INDEX_NORTH_TRUE, MAGN_3D_CHANNEL_MAX, }; @@ -57,7 +61,11 @@ struct magn_3d_state { static const u32 magn_3d_addresses[MAGN_3D_CHANNEL_MAX] = { HID_USAGE_SENSOR_ORIENT_MAGN_FLUX_X_AXIS, HID_USAGE_SENSOR_ORIENT_MAGN_FLUX_Y_AXIS, - HID_USAGE_SENSOR_ORIENT_MAGN_FLUX_Z_AXIS + HID_USAGE_SENSOR_ORIENT_MAGN_FLUX_Z_AXIS, + HID_USAGE_SENSOR_ORIENT_COMP_MAGN_NORTH, + HID_USAGE_SENSOR_ORIENT_COMP_TRUE_NORTH, + HID_USAGE_SENSOR_ORIENT_MAGN_NORTH, + HID_USAGE_SENSOR_ORIENT_TRUE_NORTH, }; /* Channel definitions */ @@ -89,6 +97,42 @@ static const struct iio_chan_spec magn_3d_channels[] = { BIT(IIO_CHAN_INFO_SCALE) | BIT(IIO_CHAN_INFO_SAMP_FREQ) | BIT(IIO_CHAN_INFO_HYSTERESIS), + }, { + .type = IIO_ROT, + .modified = 1, + .channel2 = IIO_MOD_NORTH_MAGN_TILT_COMP, + .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), + .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_OFFSET) | + BIT(IIO_CHAN_INFO_SCALE) | + BIT(IIO_CHAN_INFO_SAMP_FREQ) | + BIT(IIO_CHAN_INFO_HYSTERESIS), + }, { + .type = IIO_ROT, + .modified = 1, + .channel2 = IIO_MOD_NORTH_TRUE_TILT_COMP, + .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), + .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_OFFSET) | + BIT(IIO_CHAN_INFO_SCALE) | + BIT(IIO_CHAN_INFO_SAMP_FREQ) | + BIT(IIO_CHAN_INFO_HYSTERESIS), + }, { + .type = IIO_ROT, + .modified = 1, + .channel2 = IIO_MOD_NORTH_MAGN, + .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), + .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_OFFSET) | + BIT(IIO_CHAN_INFO_SCALE) | + BIT(IIO_CHAN_INFO_SAMP_FREQ) | + BIT(IIO_CHAN_INFO_HYSTERESIS), + }, { + .type = IIO_ROT, + .modified = 1, + .channel2 = IIO_MOD_NORTH_TRUE, + .info_mask_separate = BIT(IIO_CHAN_INFO_RAW), + .info_mask_shared_by_type = BIT(IIO_CHAN_INFO_OFFSET) | + BIT(IIO_CHAN_INFO_SCALE) | + BIT(IIO_CHAN_INFO_SAMP_FREQ) | + BIT(IIO_CHAN_INFO_HYSTERESIS), } }; @@ -248,6 +292,13 @@ static int magn_3d_capture_sample(struct hid_sensor_hub_device *hsdev, offset = (usage_id - HID_USAGE_SENSOR_ORIENT_MAGN_FLUX_X_AXIS) + CHANNEL_SCAN_INDEX_X; break; + case HID_USAGE_SENSOR_ORIENT_COMP_MAGN_NORTH: + case HID_USAGE_SENSOR_ORIENT_COMP_TRUE_NORTH: + case HID_USAGE_SENSOR_ORIENT_MAGN_NORTH: + case HID_USAGE_SENSOR_ORIENT_TRUE_NORTH: + offset = (usage_id - HID_USAGE_SENSOR_ORIENT_COMP_MAGN_NORTH) + + CHANNEL_SCAN_INDEX_NORTH_MAGN_TILT_COMP; + break; default: return -EINVAL; } -- 2.30.2