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android_kernel_...
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asoc
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codecs
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wcd939x
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wcd939x-mbhc.h

wcd939x-mbhc.h 2.5 KB
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  1. /* SPDX-License-Identifier: GPL-2.0-only */
    2. 

  2. /*
    3. 

  3.  * Copyright (c) 2018-2019, The Linux Foundation. All rights reserved.
    4. 

  4.  * Copyright (c) 2022-2023, Qualcomm Innovation Center, Inc. All rights reserved.
    5. 

  5.  */
    6. 

  6. #ifndef __WCD939X_MBHC_H__
    7. 

  7. #define __WCD939X_MBHC_H__
    8. 

  8. #include <asoc/wcd-mbhc-v2.h>
    9. 

  9. 

  10. struct wcd939x_mbhc {
    11. 

  11. 	struct wcd_mbhc wcd_mbhc;
    12. 

  12. 	struct blocking_notifier_head notifier;
    13. 

  13. 	struct fw_info *fw_data;
    14. 

  14. 	struct timer_list rdown_timer;
    15. 

  15. 	int rdown_prev_iter;
    16. 

  16. 	bool rdown_timer_complete;
    17. 

  17. };
    18. 

  18. 

  19. static inline u32 get_r_gnd_res_tot_mohms(u32 r_gnd_int_fet_mohms, u32 r_gnd_ext_fet_mohms,
    20. 

  20. 					  u32 r_gnd_par_tot_mohms)
    21. 

  21. {
    22. 

  22. 	return r_gnd_int_fet_mohms + r_gnd_ext_fet_mohms + r_gnd_par_tot_mohms;
    23. 

  23. }
    24. 

  24. 

  25. static inline u32 get_r_aud_res_tot_mohms(u32 r_aud_int_fet_mohms, u32 r_aud_ext_fet_mohms)
    26. 

  26. {
    27. 

  27. 	return r_aud_int_fet_mohms + r_aud_ext_fet_mohms;
    28. 

  28. }
    29. 

  29. 

  30. #if IS_ENABLED(CONFIG_SND_SOC_WCD939X)
    31. 

  31. extern int wcd939x_mbhc_init(struct wcd939x_mbhc **mbhc,
    32. 

  32. 			   struct snd_soc_component *component,
    33. 

  33. 			   struct fw_info *fw_data);
    34. 

  34. extern void wcd939x_mbhc_hs_detect_exit(struct snd_soc_component *component);
    35. 

  35. extern int wcd939x_mbhc_hs_detect(struct snd_soc_component *component,
    36. 

  36. 				struct wcd_mbhc_config *mbhc_cfg);
    37. 

  37. extern void wcd939x_mbhc_deinit(struct snd_soc_component *component);
    38. 

  38. extern void wcd939x_mbhc_ssr_down(struct wcd939x_mbhc *mbhc,
    39. 

  39. 				struct snd_soc_component *component);
    40. 

  40. extern int wcd939x_mbhc_post_ssr_init(struct wcd939x_mbhc *mbhc,
    41. 

  41. 				    struct snd_soc_component *component);
    42. 

  42. extern int wcd939x_mbhc_get_impedance(struct wcd939x_mbhc *wcd939x_mbhc,
    43. 

  43. 				    uint32_t *zl, uint32_t *zr);
    44. 

  44. #else
    45. 

  45. static inline int wcd939x_mbhc_init(struct wcd939x_mbhc **mbhc,
    46. 

  46. 				  struct snd_soc_component *component,
    47. 

  47. 				  struct fw_info *fw_data)
    48. 

  48. {
    49. 

  49. 	return 0;
    50. 

  50. }
    51. 

  51. static inline void wcd939x_mbhc_hs_detect_exit(
    52. 

  52. 					struct snd_soc_component *component)
    53. 

  53. {
    54. 

  54. }
    55. 

  55. static inline int wcd939x_mbhc_hs_detect(struct snd_soc_component *component,
    56. 

  56. 				       struct wcd_mbhc_config *mbhc_cfg)
    57. 

  57. {
    58. 

  58. 		return 0;
    59. 

  59. }
    60. 

  60. static inline void wcd939x_mbhc_deinit(struct snd_soc_component *component)
    61. 

  61. {
    62. 

  62. }
    63. 

  63. static inline void wcd939x_mbhc_ssr_down(struct wcd939x_mbhc *mbhc,
    64. 

  64. 					struct snd_soc_component *component)
    65. 

  65. {
    66. 

  66. }
    67. 

  67. static inline int wcd939x_mbhc_post_ssr_init(struct wcd939x_mbhc *mbhc,
    68. 

  68. 					   struct snd_soc_component *component)
    69. 

  69. {
    70. 

  70. 	return 0;
    71. 

  71. }
    72. 

  72. 

  73. static inline int wcd939x_mbhc_get_impedance(struct wcd939x_mbhc *wcd939x_mbhc,
    74. 

  74. 					   uint32_t *zl, uint32_t *zr)
    75. 

  75. {
    76. 

  76. 	if (zl)
    77. 

  77. 		*zl = 0;
    78. 

  78. 	if (zr)
    79. 

  79. 		*zr = 0;
    80. 

  80. 	return -EINVAL;
    81. 

  81. }
    82. 

  82. #endif
    83. 

  83. 

  84. #endif /* __WCD939X_MBHC_H__ */
    85.