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hpm_i2s_common.h

hpm_i2s_common.h 934 B
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  1. /*
    2. 

  2.  * Copyright (c) 2021 hpmicro
    3. 

  3.  *
    4. 

  4.  * SPDX-License-Identifier: BSD-3-Clause
    5. 

  5.  *
    6. 

  6.  */
    7. 

  7. 

  8. #ifndef HPM_I2S_COMMON_H
    9. 

  9. #define HPM_I2S_COMMON_H
    10. 

  10. 

  11. /**
    12. 

  12.  * @brief I2S common driver APIs
    13. 

  13.  * @defgroup i2s_common_interface I2S common driver APIs
    14. 

  14.  * @ingroup io_interfaces
    15. 

  15.  * @{
    16. 

  16.  */
    17. 

  17. 

  18. #define I2S_PROTOCOL_I2S_PHILIPS (0U)
    19. 

  19. #define I2S_PROTOCOL_MSB_JUSTIFIED (1U)
    20. 

  20. #define I2S_PROTOCOL_LEFT_JUSTIFIED (1U)
    21. 

  21. #define I2S_PROTOCOL_LSB_JUSTIFIED (2U)
    22. 

  22. #define I2S_PROTOCOL_RIGHT_JUSTIFIED (2U)
    23. 

  23. #define I2S_PROTOCOL_PCM (3U)
    24. 

  24. 

  25. #define I2S_AUDIO_DEPTH_16_BITS (0U)
    26. 

  26. #define I2S_AUDIO_DEPTH_24_BITS (1U)
    27. 

  27. #define I2S_AUDIO_DEPTH_32_BITS (2U)
    28. 

  28. #define I2S_AUDIO_DEPTH_IS_NOT_VALID(x) ((x) > I2S_AUDIO_DEPTH_32_BITS)
    29. 

  29. 

  30. #define I2S_CHANNEL_LENGTH_16_BITS (0U)
    31. 

  31. #define I2S_CHANNEL_LENGTH_32_BITS (1U)
    32. 

  32. 

  33. /**
    34. 

  34.  * @brief I2S stereo/mono channel
    35. 

  35.  */
    36. 

  36. enum {
    37. 

  37.     i2s_mono_left  = 0,
    38. 

  38.     i2s_mono_right = 1,
    39. 

  39.     i2s_stereo     = 2,
    40. 

  40. };
    41. 

  41. 

  42. /**
    43. 

  43.  * @}
    44. 

  44.  */
    45. 

  45. 

  46. #endif /* HPM_I2S_COMMON_H */
    47.