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drivers
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iio
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pressure
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st_pressure.h

st_pressure.h 988 B
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  1. /*
    2. 

  2.  * STMicroelectronics pressures driver
    3. 

  3.  *
    4. 

  4.  * Copyright 2013 STMicroelectronics Inc.
    5. 

  5.  *
    6. 

  6.  * Denis Ciocca <denis.ciocca@st.com>
    7. 

  7.  * v. 1.0.0
    8. 

  8.  * Licensed under the GPL-2.
    9. 

  9.  */
    10. 

  10. 

  11. #ifndef ST_PRESS_H
    12. 

  12. #define ST_PRESS_H
    13. 

  13. 

  14. #include <linux/types.h>
    15. 

  15. #include <linux/iio/common/st_sensors.h>
    16. 

  16. 

  17. #define LPS331AP_PRESS_DEV_NAME		"lps331ap"
    18. 

  18. 

  19. int st_press_common_probe(struct iio_dev *indio_dev);
    20. 

  20. void st_press_common_remove(struct iio_dev *indio_dev);
    21. 

  21. 

  22. #ifdef CONFIG_IIO_BUFFER
    23. 

  23. int st_press_allocate_ring(struct iio_dev *indio_dev);
    24. 

  24. void st_press_deallocate_ring(struct iio_dev *indio_dev);
    25. 

  25. int st_press_trig_set_state(struct iio_trigger *trig, bool state);
    26. 

  26. #define ST_PRESS_TRIGGER_SET_STATE (&st_press_trig_set_state)
    27. 

  27. #else /* CONFIG_IIO_BUFFER */
    28. 

  28. static inline int st_press_allocate_ring(struct iio_dev *indio_dev)
    29. 

  29. {
    30. 

  30. 	return 0;
    31. 

  31. }
    32. 

  32. 

  33. static inline void st_press_deallocate_ring(struct iio_dev *indio_dev)
    34. 

  34. {
    35. 

  35. }
    36. 

  36. #define ST_PRESS_TRIGGER_SET_STATE NULL
    37. 

  37. #endif /* CONFIG_IIO_BUFFER */
    38. 

  38. 

  39. #endif /* ST_PRESS_H */
    40.