From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mga09.intel.com ([134.134.136.24]:61316 "EHLO mga09.intel.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754584AbaDRXTr (ORCPT ); Fri, 18 Apr 2014 19:19:47 -0400 From: Srinivas Pandruvada To: jic23@kernel.org Cc: linux-iio@vger.kernel.org, Srinivas Pandruvada Subject: [PATCH 14/16] iio: hid-sensors: Compass 3D: Raw read support Date: Fri, 18 Apr 2014 16:22:34 -0700 Message-Id: <1397863356-2470-14-git-send-email-srinivas.pandruvada@linux.intel.com> In-Reply-To: <1397863356-2470-1-git-send-email-srinivas.pandruvada@linux.intel.com> References: <1397863356-2470-1-git-send-email-srinivas.pandruvada@linux.intel.com> Sender: linux-iio-owner@vger.kernel.org List-Id: linux-iio@vger.kernel.org Added support for raw reading of channel. If the sensor is powered off, it will turn on for reading value Signed-off-by: Srinivas Pandruvada --- drivers/iio/magnetometer/hid-sensor-magn-3d.c | 16 ++++++++++++++++ 1 file changed, 16 insertions(+) diff --git a/drivers/iio/magnetometer/hid-sensor-magn-3d.c b/drivers/iio/magnetometer/hid-sensor-magn-3d.c index 54eea6a..41cf29e 100644 --- a/drivers/iio/magnetometer/hid-sensor-magn-3d.c +++ b/drivers/iio/magnetometer/hid-sensor-magn-3d.c @@ -22,6 +22,7 @@ #include #include #include +#include #include #include #include @@ -60,6 +61,7 @@ static const struct iio_chan_spec magn_3d_channels[] = { .type = IIO_MAGN, .modified = 1, .channel2 = IIO_MOD_X, + .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) | @@ -69,6 +71,7 @@ static const struct iio_chan_spec magn_3d_channels[] = { .type = IIO_MAGN, .modified = 1, .channel2 = IIO_MOD_Y, + .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) | @@ -78,6 +81,7 @@ static const struct iio_chan_spec magn_3d_channels[] = { .type = IIO_MAGN, .modified = 1, .channel2 = IIO_MOD_Z, + .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) | @@ -108,11 +112,20 @@ static int magn_3d_read_raw(struct iio_dev *indio_dev, u32 address; int ret; int ret_type; + s32 poll_value; *val = 0; *val2 = 0; switch (mask) { case 0: + poll_value = hid_sensor_read_poll_value( + &magn_state->common_attributes); + if (poll_value < 0) + return -EINVAL; + + hid_sensor_power_state(&magn_state->common_attributes, true); + msleep_interruptible(poll_value * 2); + report_id = magn_state->magn[chan->scan_index].report_id; address = magn_3d_addresses[chan->scan_index]; @@ -123,8 +136,11 @@ static int magn_3d_read_raw(struct iio_dev *indio_dev, report_id); else { *val = 0; + hid_sensor_power_state(&magn_state->common_attributes, + false); return -EINVAL; } + hid_sensor_power_state(&magn_state->common_attributes, false); ret_type = IIO_VAL_INT; break; case IIO_CHAN_INFO_SCALE: -- 1.7.11.7