include/sound/rcar_snd.h

   1 /*
   2  * Renesas R-Car SRU/SCU/SSIU/SSI support
   3  *
   4  * Copyright (C) 2013 Renesas Solutions Corp.
   5  * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
   6  *
   7  * This program is free software; you can redistribute it and/or modify
   8  * it under the terms of the GNU General Public License version 2 as
   9  * published by the Free Software Foundation.
  10  */
  11
  12 #ifndef RCAR_SND_H
  13 #define RCAR_SND_H
  14
  15 #include <linux/sh_clk.h>
  16
  17 #define RSND_GEN1_SRU   0
  18 #define RSND_GEN1_ADG   1
  19 #define RSND_GEN1_SSI   2
  20
  21 #define RSND_GEN2_SCU   0
  22 #define RSND_GEN2_ADG   1
  23 #define RSND_GEN2_SSIU  2
  24 #define RSND_GEN2_SSI   3
  25
  26 #define RSND_BASE_MAX   4
  27
  28 /*
  29  * flags
  30  *
  31  * 0xAB000000
  32  *
  33  * A : clock sharing settings
  34  * B : SSI direction
  35  */
  36 #define RSND_SSI_CLK_PIN_SHARE          (1 << 31)
  37 #define RSND_SSI_PLAY                   (1 << 24)
  38
  39 #define RSND_SSI(_dma_id, _pio_irq, _flags)             \
  40 { .dma_id = _dma_id, .pio_irq = _pio_irq, .flags = _flags }
  41 #define RSND_SSI_SET(_dai_id, _dma_id, _pio_irq, _flags)        \
  42 { .dai_id = _dai_id, .dma_id = _dma_id, .pio_irq = _pio_irq, .flags = _flags }
  43 #define RSND_SSI_UNUSED \
  44 { .dai_id = -1, .dma_id = -1, .pio_irq = -1, .flags = 0 }
  45
  46 struct rsnd_ssi_platform_info {
  47         int dai_id;     /* will be removed */
  48         int dma_id;
  49         int pio_irq;
  50         u32 flags;
  51 };
  52
  53 /*
  54  * flags
  55  */
  56 #define RSND_SCU_USE_HPBIF              (1 << 31) /* it needs RSND_SSI_DEPENDENT */
  57
  58 #define RSND_SRC(rate, _dma_id)                                         \
  59 { .flags = RSND_SCU_USE_HPBIF, .convert_rate = rate, .dma_id = _dma_id, }
  60 #define RSND_SRC_SET(rate, _dma_id)             \
  61         { .flags = RSND_SCU_USE_HPBIF, .convert_rate = rate, .dma_id = _dma_id, }
  62 #define RSND_SRC_UNUSED                         \
  63         { .flags = 0, .convert_rate = 0, .dma_id = 0, }
  64
  65 #define rsnd_scu_platform_info  rsnd_src_platform_info
  66 #define src_info                scu_info
  67 #define src_info_nr             scu_info_nr
  68
  69 struct rsnd_src_platform_info {
  70         u32 flags;
  71         u32 convert_rate; /* sampling rate convert */
  72         int dma_id; /* for Gen2 SCU */
  73 };
  74
  75 struct rsnd_dai_path_info {
  76         struct rsnd_ssi_platform_info *ssi;
  77         struct rsnd_src_platform_info *src;
  78 };
  79
  80 struct rsnd_dai_platform_info {
  81         struct rsnd_dai_path_info playback;
  82         struct rsnd_dai_path_info capture;
  83 };
  84
  85 /*
  86  * flags
  87  *
  88  * 0x0000000A
  89  *
  90  * A : generation
  91  */
  92 #define RSND_GEN_MASK   (0xF << 0)
  93 #define RSND_GEN1       (1 << 0) /* fixme */
  94 #define RSND_GEN2       (2 << 0) /* fixme */
  95
  96 struct rcar_snd_info {
  97         u32 flags;
  98         struct rsnd_ssi_platform_info *ssi_info;
  99         int ssi_info_nr;
 100         struct rsnd_src_platform_info *src_info;
 101         int src_info_nr;
 102         struct rsnd_dai_platform_info *dai_info;
 103         int dai_info_nr;
 104         int (*start)(int id);
 105         int (*stop)(int id);
 106 };
 107
 108 #endif