drivers/iio/gyro/st_gyro.h

   1 /*
   2  * STMicroelectronics gyroscopes driver
   3  *
   4  * Copyright 2012-2013 STMicroelectronics Inc.
   5  *
   6  * Denis Ciocca <denis.ciocca@st.com>
   7  * v. 1.0.0
   8  * Licensed under the GPL-2.
   9  */
  10
  11 #ifndef ST_GYRO_H
  12 #define ST_GYRO_H
  13
  14 #include <linux/types.h>
  15 #include <linux/iio/common/st_sensors.h>
  16
  17 #define L3G4200D_GYRO_DEV_NAME          "l3g4200d"
  18 #define LSM330D_GYRO_DEV_NAME           "lsm330d_gyro"
  19 #define LSM330DL_GYRO_DEV_NAME          "lsm330dl_gyro"
  20 #define LSM330DLC_GYRO_DEV_NAME         "lsm330dlc_gyro"
  21 #define L3GD20_GYRO_DEV_NAME            "l3gd20"
  22 #define L3G4IS_GYRO_DEV_NAME            "l3g4is_ui"
  23 #define LSM330_GYRO_DEV_NAME            "lsm330_gyro"
  24
  25 /**
  26  * struct st_sensors_platform_data - gyro platform data
  27  * @drdy_int_pin: DRDY on gyros is available only on INT2 pin.
  28  */
  29 static const struct st_sensors_platform_data gyro_pdata = {
  30         .drdy_int_pin = 2,
  31 };
  32
  33 int st_gyro_common_probe(struct iio_dev *indio_dev);
  34 void st_gyro_common_remove(struct iio_dev *indio_dev);
  35
  36 #ifdef CONFIG_IIO_BUFFER
  37 int st_gyro_allocate_ring(struct iio_dev *indio_dev);
  38 void st_gyro_deallocate_ring(struct iio_dev *indio_dev);
  39 int st_gyro_trig_set_state(struct iio_trigger *trig, bool state);
  40 #define ST_GYRO_TRIGGER_SET_STATE (&st_gyro_trig_set_state)
  41 #else /* CONFIG_IIO_BUFFER */
  42 static inline int st_gyro_allocate_ring(struct iio_dev *indio_dev)
  43 {
  44         return 0;
  45 }
  46 static inline void st_gyro_deallocate_ring(struct iio_dev *indio_dev)
  47 {
  48 }
  49 #define ST_GYRO_TRIGGER_SET_STATE NULL
  50 #endif /* CONFIG_IIO_BUFFER */
  51
  52 #endif /* ST_GYRO_H */