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| author | Srinivas Pandruvada <srinivas.pandruvada@linux.intel.com> | 2014-04-19 00:22:00 +0100 |
|---|---|---|
| committer | Jonathan Cameron <jic23@kernel.org> | 2014-05-05 10:59:51 +0100 |
| commit | 1eef062042751822e9f9de418b0f712c6f9b93e8 (patch) | |
| tree | 633f40e27cb35a1ee486371e97b526a7369f7913 /drivers/iio/light | |
| parent | 371a12339a210561ca43f1ebcbc01fbdbcab9435 (diff) | |
| download | linux-1eef062042751822e9f9de418b0f712c6f9b93e8.tar.gz linux-1eef062042751822e9f9de418b0f712c6f9b93e8.tar.bz2 linux-1eef062042751822e9f9de418b0f712c6f9b93e8.zip | |
iio: hid-sensors: Proximity: Raw read support
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 <srinivas.pandruvada@linux.intel.com>
Signed-off-by: Jonathan Cameron <jic23@kernel.org>
Diffstat (limited to 'drivers/iio/light')
| -rw-r--r-- | drivers/iio/light/hid-sensor-prox.c | 18 |
1 files changed, 16 insertions, 2 deletions
diff --git a/drivers/iio/light/hid-sensor-prox.c b/drivers/iio/light/hid-sensor-prox.c index 07e98ec8e9f1..d203ef4d892f 100644 --- a/drivers/iio/light/hid-sensor-prox.c +++ b/drivers/iio/light/hid-sensor-prox.c @@ -21,6 +21,7 @@ #include <linux/interrupt.h> #include <linux/irq.h> #include <linux/slab.h> +#include <linux/delay.h> #include <linux/hid-sensor-hub.h> #include <linux/iio/iio.h> #include <linux/iio/sysfs.h> @@ -75,6 +76,7 @@ static int prox_read_raw(struct iio_dev *indio_dev, u32 address; int ret; int ret_type; + s32 poll_value; *val = 0; *val2 = 0; @@ -90,12 +92,24 @@ static int prox_read_raw(struct iio_dev *indio_dev, report_id = -1; break; } - if (report_id >= 0) + if (report_id >= 0) { + poll_value = hid_sensor_read_poll_value( + &prox_state->common_attributes); + if (poll_value < 0) + return -EINVAL; + + hid_sensor_power_state(&prox_state->common_attributes, + true); + + msleep_interruptible(poll_value * 2); + *val = sensor_hub_input_attr_get_raw_value( prox_state->common_attributes.hsdev, HID_USAGE_SENSOR_PROX, address, report_id); - else { + hid_sensor_power_state(&prox_state->common_attributes, + false); + } else { *val = 0; return -EINVAL; } |