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asoc
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codecs
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wcd937x
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wcd937x-mbhc.h

wcd937x-mbhc.h 1.7 KB
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  1. /* SPDX-License-Identifier: GPL-2.0 */
    2. 

  2. /* Copyright (c) 2018, The Linux Foundation. All rights reserved.
    3. 

  3.  */
    4. 

  4. #ifndef __WCD937X_MBHC_H__
    5. 

  5. #define __WCD937X_MBHC_H__
    6. 

  6. #include "../wcd-mbhc-v2.h"
    7. 

  7. 

  8. struct wcd937x_mbhc {
    9. 

  9. 	struct wcd_mbhc wcd_mbhc;
    10. 

  10. 	struct blocking_notifier_head notifier;
    11. 

  11. 	struct fw_info *fw_data;
    12. 

  12. };
    13. 

  13. 

  14. #if IS_ENABLED(CONFIG_SND_SOC_WCD937X)
    15. 

  15. extern int wcd937x_mbhc_init(struct wcd937x_mbhc **mbhc,
    16. 

  16. 			   struct snd_soc_codec *codec,
    17. 

  17. 			   struct fw_info *fw_data);
    18. 

  18. extern void wcd937x_mbhc_hs_detect_exit(struct snd_soc_codec *codec);
    19. 

  19. extern int wcd937x_mbhc_hs_detect(struct snd_soc_codec *codec,
    20. 

  20. 				struct wcd_mbhc_config *mbhc_cfg);
    21. 

  21. extern void wcd937x_mbhc_deinit(struct snd_soc_codec *codec);
    22. 

  22. extern int wcd937x_mbhc_post_ssr_init(struct wcd937x_mbhc *mbhc,
    23. 

  23. 				    struct snd_soc_codec *codec);
    24. 

  24. extern int wcd937x_mbhc_get_impedance(struct wcd937x_mbhc *wcd937x_mbhc,
    25. 

  25. 				    uint32_t *zl, uint32_t *zr);
    26. 

  26. #else
    27. 

  27. static inline int wcd937x_mbhc_init(struct wcd937x_mbhc **mbhc,
    28. 

  28. 				  struct snd_soc_codec *codec,
    29. 

  29. 				  struct fw_info *fw_data)
    30. 

  30. {
    31. 

  31. 	return 0;
    32. 

  32. }
    33. 

  33. static inline void wcd937x_mbhc_hs_detect_exit(struct snd_soc_codec *codec)
    34. 

  34. {
    35. 

  35. }
    36. 

  36. static inline int wcd937x_mbhc_hs_detect(struct snd_soc_codec *codec,
    37. 

  37. 				       struct wcd_mbhc_config *mbhc_cfg)
    38. 

  38. {
    39. 

  39. 		return 0;
    40. 

  40. }
    41. 

  41. static inline void wcd937x_mbhc_deinit(struct snd_soc_codec *codec)
    42. 

  42. {
    43. 

  43. }
    44. 

  44. static inline int wcd937x_mbhc_post_ssr_init(struct wcd937x_mbhc *mbhc,
    45. 

  45. 					   struct snd_soc_codec *codec)
    46. 

  46. {
    47. 

  47. 	return 0;
    48. 

  48. }
    49. 

  49. 

  50. static inline int wcd937x_mbhc_get_impedance(struct wcd937x_mbhc *wcd937x_mbhc,
    51. 

  51. 					   uint32_t *zl, uint32_t *zr)
    52. 

  52. {
    53. 

  53. 	if (zl)
    54. 

  54. 		*zl = 0;
    55. 

  55. 	if (zr)
    56. 

  56. 		*zr = 0;
    57. 

  57. 	return -EINVAL;
    58. 

  58. }
    59. 

  59. #endif
    60. 

  60. 

  61. #endif /* __WCD937X_MBHC_H__ */
    62.