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_SRU   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_CLK_FROM_ADG           (1 << 30) /* clock parent is master */
  38 #define RSND_SSI_SYNC                   (1 << 29) /* SSI34_sync etc */
  39 #define RSND_SSI_DEPENDENT              (1 << 28) /* SSI needs SRU/SCU */
  40
  41 #define RSND_SSI_PLAY                   (1 << 24)
  42
  43 #define RSND_SSI_SET(_dai_id, _dma_id, _pio_irq, _flags)        \
  44 { .dai_id = _dai_id, .dma_id = _dma_id, .pio_irq = _pio_irq, .flags = _flags }
  45 #define RSND_SSI_UNUSED \
  46 { .dai_id = -1, .dma_id = -1, .pio_irq = -1, .flags = 0 }
  47
  48 struct rsnd_ssi_platform_info {
  49         int dai_id;
  50         int dma_id;
  51         int pio_irq;
  52         u32 flags;
  53 };
  54
  55 /*
  56  * flags
  57  */
  58 #define RSND_SCU_USE_HPBIF              (1 << 31) /* it needs RSND_SSI_DEPENDENT */
  59
  60 struct rsnd_scu_platform_info {
  61         u32 flags;
  62 };
  63
  64 /*
  65  * flags
  66  *
  67  * 0x0000000A
  68  *
  69  * A : generation
  70  */
  71 #define RSND_GEN_MASK   (0xF << 0)
  72 #define RSND_GEN1       (1 << 0) /* fixme */
  73 #define RSND_GEN2       (2 << 0) /* fixme */
  74
  75 struct rcar_snd_info {
  76         u32 flags;
  77         struct rsnd_ssi_platform_info *ssi_info;
  78         int ssi_info_nr;
  79         struct rsnd_scu_platform_info *scu_info;
  80         int scu_info_nr;
  81         int (*start)(int id);
  82         int (*stop)(int id);
  83 };
  84
  85 #endif