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_NO_BUSIF               (1 << 30) /* SSI+DMA without BUSIF */
  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_UNUSED \
  42 { .dma_id = -1, .pio_irq = -1, .flags = 0 }
  43
  44 struct rsnd_ssi_platform_info {
  45         int dma_id;
  46         int pio_irq;
  47         u32 flags;
  48 };
  49
  50 #define RSND_SRC(rate, _dma_id)                                         \
  51 { .convert_rate = rate, .dma_id = _dma_id, }
  52 #define RSND_SRC_UNUSED                         \
  53 { .convert_rate = 0, .dma_id = -1, }
  54
  55 struct rsnd_src_platform_info {
  56         u32 convert_rate; /* sampling rate convert */
  57         int dma_id; /* for Gen2 SCU */
  58 };
  59
  60 /*
  61  * flags
  62  */
  63 struct rsnd_dvc_platform_info {
  64         u32 flags;
  65 };
  66
  67 struct rsnd_dai_path_info {
  68         struct rsnd_ssi_platform_info *ssi;
  69         struct rsnd_src_platform_info *src;
  70         struct rsnd_dvc_platform_info *dvc;
  71 };
  72
  73 struct rsnd_dai_platform_info {
  74         struct rsnd_dai_path_info playback;
  75         struct rsnd_dai_path_info capture;
  76 };
  77
  78 /*
  79  * flags
  80  *
  81  * 0x0000000A
  82  *
  83  * A : generation
  84  */
  85 #define RSND_GEN_MASK   (0xF << 0)
  86 #define RSND_GEN1       (1 << 0) /* fixme */
  87 #define RSND_GEN2       (2 << 0) /* fixme */
  88
  89 struct rcar_snd_info {
  90         u32 flags;
  91         struct rsnd_ssi_platform_info *ssi_info;
  92         int ssi_info_nr;
  93         struct rsnd_src_platform_info *src_info;
  94         int src_info_nr;
  95         struct rsnd_dvc_platform_info *dvc_info;
  96         int dvc_info_nr;
  97         struct rsnd_dai_platform_info *dai_info;
  98         int dai_info_nr;
  99         int (*start)(int id);
 100         int (*stop)(int id);
 101 };
 102
 103 #endif