maxim_codec.h 1.6 KB

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  1. /* SPDX-License-Identifier: GPL-2.0 */
  2. /*
  3. * maxim_codec.h -- MAXIM codec common interface file
  4. *
  5. * Copyright (C) 2013 Samsung Electronics
  6. * D Krishna Mohan <krishna.md@samsung.com>
  7. */
  8. #ifndef __MAXIM_COMMON_H__
  9. #define __MAXIM_COMMON_H__
  10. enum maxim_codec_type {
  11. MAX98095,
  12. MAX98090,
  13. };
  14. struct maxim_priv {
  15. enum maxim_codec_type devtype;
  16. unsigned int sysclk;
  17. unsigned int rate;
  18. unsigned int fmt;
  19. struct udevice *dev;
  20. };
  21. #define MAXIM_AUDIO_I2C_BUS 7
  22. #define MAXIM_AUDIO_I2C_REG_98095 0x22
  23. #define MAXIM_AUDIO_I2C_REG MAXIM_AUDIO_I2C_REG_98095
  24. /*
  25. * Writes value to a device register through i2c
  26. *
  27. * @param priv Private data for driver
  28. * @param reg reg number to be write
  29. * @param data data to be writen to the above registor
  30. *
  31. * @return int value 1 for change, 0 for no change or negative error code.
  32. */
  33. int maxim_i2c_write(struct maxim_priv *priv, unsigned int reg,
  34. unsigned char data);
  35. /*
  36. * Read a value from a device register through i2c
  37. *
  38. * @param priv Private data for driver
  39. * @param reg reg number to be read
  40. * @param data address of read data to be stored
  41. *
  42. * @return int value 0 for success, -1 in case of error.
  43. */
  44. unsigned int maxim_i2c_read(struct maxim_priv *priv, unsigned int reg,
  45. unsigned char *data);
  46. /*
  47. * update device register bits through i2c
  48. *
  49. * @param priv Private data for driver
  50. * @param reg codec register
  51. * @param mask register mask
  52. * @param value new value
  53. *
  54. * @return int value 0 for success, non-zero error code.
  55. */
  56. int maxim_bic_or(struct maxim_priv *priv, unsigned int reg, unsigned char mask,
  57. unsigned char value);
  58. #endif /* __MAXIM_COMMON_H__ */