cygnus-ssp.h 3.1 KB

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  1. /* SPDX-License-Identifier: GPL-2.0-only */
  2. /* Copyright (C) 2014-2015 Broadcom Corporation */
  3. #ifndef __CYGNUS_SSP_H__
  4. #define __CYGNUS_SSP_H__
  5. #define CYGNUS_TDM_DAI_MAX_SLOTS 16
  6. #define CYGNUS_MAX_PLAYBACK_PORTS 4
  7. #define CYGNUS_MAX_CAPTURE_PORTS 3
  8. #define CYGNUS_MAX_I2S_PORTS 3
  9. #define CYGNUS_MAX_PORTS CYGNUS_MAX_PLAYBACK_PORTS
  10. #define CYGNUS_AUIDO_MAX_NUM_CLKS 3
  11. #define CYGNUS_SSP_FRAMEBITS_DIV 1
  12. #define CYGNUS_SSPMODE_I2S 0
  13. #define CYGNUS_SSPMODE_TDM 1
  14. #define CYGNUS_SSPMODE_UNKNOWN -1
  15. #define CYGNUS_SSP_CLKSRC_PLL 0
  16. /* Max string length of our dt property names */
  17. #define PROP_LEN_MAX 40
  18. struct ringbuf_regs {
  19. unsigned rdaddr;
  20. unsigned wraddr;
  21. unsigned baseaddr;
  22. unsigned endaddr;
  23. unsigned fmark; /* freemark for play, fullmark for caputure */
  24. unsigned period_bytes;
  25. unsigned buf_size;
  26. };
  27. #define RINGBUF_REG_PLAYBACK(num) ((struct ringbuf_regs) { \
  28. .rdaddr = SRC_RBUF_ ##num## _RDADDR_OFFSET, \
  29. .wraddr = SRC_RBUF_ ##num## _WRADDR_OFFSET, \
  30. .baseaddr = SRC_RBUF_ ##num## _BASEADDR_OFFSET, \
  31. .endaddr = SRC_RBUF_ ##num## _ENDADDR_OFFSET, \
  32. .fmark = SRC_RBUF_ ##num## _FREE_MARK_OFFSET, \
  33. .period_bytes = 0, \
  34. .buf_size = 0, \
  35. })
  36. #define RINGBUF_REG_CAPTURE(num) ((struct ringbuf_regs) { \
  37. .rdaddr = DST_RBUF_ ##num## _RDADDR_OFFSET, \
  38. .wraddr = DST_RBUF_ ##num## _WRADDR_OFFSET, \
  39. .baseaddr = DST_RBUF_ ##num## _BASEADDR_OFFSET, \
  40. .endaddr = DST_RBUF_ ##num## _ENDADDR_OFFSET, \
  41. .fmark = DST_RBUF_ ##num## _FULL_MARK_OFFSET, \
  42. .period_bytes = 0, \
  43. .buf_size = 0, \
  44. })
  45. enum cygnus_audio_port_type {
  46. PORT_TDM,
  47. PORT_SPDIF,
  48. };
  49. struct cygnus_ssp_regs {
  50. u32 i2s_stream_cfg;
  51. u32 i2s_cfg;
  52. u32 i2s_cap_stream_cfg;
  53. u32 i2s_cap_cfg;
  54. u32 i2s_mclk_cfg;
  55. u32 bf_destch_ctrl;
  56. u32 bf_destch_cfg;
  57. u32 bf_sourcech_ctrl;
  58. u32 bf_sourcech_cfg;
  59. u32 bf_sourcech_grp;
  60. };
  61. struct cygnus_track_clk {
  62. bool cap_en;
  63. bool play_en;
  64. bool cap_clk_en;
  65. bool play_clk_en;
  66. };
  67. struct cygnus_aio_port {
  68. int portnum;
  69. int mode;
  70. bool is_slave;
  71. int streams_on; /* will be 0 if both capture and play are off */
  72. int fsync_width;
  73. int port_type;
  74. u32 mclk;
  75. u32 lrclk;
  76. u32 bit_per_frame;
  77. u32 pll_clk_num;
  78. struct cygnus_audio *cygaud;
  79. struct cygnus_ssp_regs regs;
  80. struct ringbuf_regs play_rb_regs;
  81. struct ringbuf_regs capture_rb_regs;
  82. struct snd_pcm_substream *play_stream;
  83. struct snd_pcm_substream *capture_stream;
  84. struct cygnus_track_clk clk_trace;
  85. };
  86. struct cygnus_audio {
  87. struct cygnus_aio_port portinfo[CYGNUS_MAX_PORTS];
  88. int irq_num;
  89. void __iomem *audio;
  90. struct device *dev;
  91. void __iomem *i2s_in;
  92. struct clk *audio_clk[CYGNUS_AUIDO_MAX_NUM_CLKS];
  93. int active_ports;
  94. unsigned long vco_rate;
  95. };
  96. extern int cygnus_ssp_get_mode(struct snd_soc_dai *cpu_dai);
  97. extern int cygnus_ssp_add_pll_tweak_controls(struct snd_soc_pcm_runtime *rtd);
  98. extern int cygnus_ssp_set_custom_fsync_width(struct snd_soc_dai *cpu_dai,
  99. int len);
  100. extern int cygnus_soc_platform_register(struct device *dev,
  101. struct cygnus_audio *cygaud);
  102. extern int cygnus_soc_platform_unregister(struct device *dev);
  103. extern int cygnus_ssp_set_custom_fsync_width(struct snd_soc_dai *cpu_dai,
  104. int len);
  105. #endif