drivers/iio/magnetometer/st_magn.h

   1 /*
   2  * STMicroelectronics magnetometers 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_MAGN_H
  12 #define ST_MAGN_H
  13
  14 #include <linux/types.h>
  15 #include <linux/iio/common/st_sensors.h>
  16
  17 #define LSM303DLH_MAGN_DEV_NAME         "lsm303dlh_magn"
  18 #define LSM303DLHC_MAGN_DEV_NAME        "lsm303dlhc_magn"
  19 #define LSM303DLM_MAGN_DEV_NAME         "lsm303dlm_magn"
  20 #define LIS3MDL_MAGN_DEV_NAME           "lis3mdl"
  21 #define LSM303AGR_MAGN_DEV_NAME         "lsm303agr_magn"
  22
  23 int st_magn_common_probe(struct iio_dev *indio_dev);
  24 void st_magn_common_remove(struct iio_dev *indio_dev);
  25
  26 #ifdef CONFIG_IIO_BUFFER
  27 int st_magn_allocate_ring(struct iio_dev *indio_dev);
  28 void st_magn_deallocate_ring(struct iio_dev *indio_dev);
  29 int st_magn_trig_set_state(struct iio_trigger *trig, bool state);
  30 #define ST_MAGN_TRIGGER_SET_STATE (&st_magn_trig_set_state)
  31 #else /* CONFIG_IIO_BUFFER */
  32 static inline int st_magn_probe_trigger(struct iio_dev *indio_dev, int irq)
  33 {
  34         return 0;
  35 }
  36 static inline void st_magn_remove_trigger(struct iio_dev *indio_dev, int irq)
  37 {
  38         return;
  39 }
  40 static inline int st_magn_allocate_ring(struct iio_dev *indio_dev)
  41 {
  42         return 0;
  43 }
  44 static inline void st_magn_deallocate_ring(struct iio_dev *indio_dev)
  45 {
  46 }
  47 #define ST_MAGN_TRIGGER_SET_STATE NULL
  48 #endif /* CONFIG_IIO_BUFFER */
  49
  50 #endif /* ST_MAGN_H */