From aa984f1ba4a477c8ea39d2fa975a4f8de8a126e9 Mon Sep 17 00:00:00 2001 From: Gwendal Grignou Date: Fri, 27 Mar 2020 15:34:38 -0700 Subject: iio: cros_ec: Register to cros_ec_sensorhub when EC supports FIFO When EC supports FIFO, each IIO device registers a callback, to put samples in the buffer when they arrives from the FIFO. When no FIFO, the user space app needs to call trigger_new, or better register a high precision timer. Signed-off-by: Gwendal Grignou Reviewed-by: Jonathan Cameron Signed-off-by: Enric Balletbo i Serra --- include/linux/iio/common/cros_ec_sensors_core.h | 10 +++++++++- 1 file changed, 9 insertions(+), 1 deletion(-) (limited to 'include/linux/iio') diff --git a/include/linux/iio/common/cros_ec_sensors_core.h b/include/linux/iio/common/cros_ec_sensors_core.h index 0af918978f97..b8f573ca9dcc 100644 --- a/include/linux/iio/common/cros_ec_sensors_core.h +++ b/include/linux/iio/common/cros_ec_sensors_core.h @@ -12,6 +12,7 @@ #include #include #include +#include enum { CROS_EC_SENSOR_X, @@ -32,6 +33,8 @@ enum { /* Minimum sampling period to use when device is suspending */ #define CROS_EC_MIN_SUSPEND_SAMPLING_FREQUENCY 1000 /* 1 second */ +typedef irqreturn_t (*cros_ec_sensors_capture_t)(int irq, void *p); + /** * struct cros_ec_sensors_core_state - state data for EC sensors IIO driver * @ec: cros EC device structure @@ -87,9 +90,14 @@ int cros_ec_sensors_read_cmd(struct iio_dev *indio_dev, unsigned long scan_mask, struct platform_device; int cros_ec_sensors_core_init(struct platform_device *pdev, - struct iio_dev *indio_dev, bool physical_device); + struct iio_dev *indio_dev, bool physical_device, + cros_ec_sensors_capture_t trigger_capture, + cros_ec_sensorhub_push_data_cb_t push_data); irqreturn_t cros_ec_sensors_capture(int irq, void *p); +int cros_ec_sensors_push_data(struct iio_dev *indio_dev, + s16 *data, + s64 timestamp); int cros_ec_motion_send_host_cmd(struct cros_ec_sensors_core_state *st, u16 opt_length); -- cgit v1.2.3