include/sound/sh_fsi.h

   1 #ifndef __SOUND_FSI_H
   2 #define __SOUND_FSI_H
   3
   4 /*
   5  * Fifo-attached Serial Interface (FSI) support for SH7724
   6  *
   7  * Copyright (C) 2009 Renesas Solutions Corp.
   8  * Kuninori Morimoto <morimoto.kuninori@renesas.com>
   9  *
  10  * This program is free software; you can redistribute it and/or modify
  11  * it under the terms of the GNU General Public License version 2 as
  12  * published by the Free Software Foundation.
  13  */
  14
  15 /* flags format
  16
  17  * 0xABCDEEFF
  18  *
  19  * A:  channel size for TDM (input)
  20  * B:  channel size for TDM (ooutput)
  21  * C:  inversion
  22  * D:  mode
  23  * E:  input format
  24  * F:  output format
  25  */
  26
  27 #include <linux/clk.h>
  28 #include <sound/soc.h>
  29
  30 /* TDM channel */
  31 #define SH_FSI_SET_CH_I(x)      ((x & 0xF) << 28)
  32 #define SH_FSI_SET_CH_O(x)      ((x & 0xF) << 24)
  33
  34 #define SH_FSI_CH_IMASK         0xF0000000
  35 #define SH_FSI_CH_OMASK         0x0F000000
  36 #define SH_FSI_GET_CH_I(x)      ((x & SH_FSI_CH_IMASK) >> 28)
  37 #define SH_FSI_GET_CH_O(x)      ((x & SH_FSI_CH_OMASK) >> 24)
  38
  39 /* clock inversion */
  40 #define SH_FSI_INVERSION_MASK   0x00F00000
  41 #define SH_FSI_LRM_INV          (1 << 20)
  42 #define SH_FSI_BRM_INV          (1 << 21)
  43 #define SH_FSI_LRS_INV          (1 << 22)
  44 #define SH_FSI_BRS_INV          (1 << 23)
  45
  46 /* mode */
  47 #define SH_FSI_MODE_MASK        0x000F0000
  48 #define SH_FSI_IN_SLAVE_MODE    (1 << 16)  /* default master mode */
  49 #define SH_FSI_OUT_SLAVE_MODE   (1 << 17)  /* default master mode */
  50
  51 /* DI format */
  52 #define SH_FSI_FMT_MASK         0x000000FF
  53 #define SH_FSI_IFMT(x)          (((SH_FSI_FMT_ ## x) & SH_FSI_FMT_MASK) << 8)
  54 #define SH_FSI_OFMT(x)          (((SH_FSI_FMT_ ## x) & SH_FSI_FMT_MASK) << 0)
  55 #define SH_FSI_GET_IFMT(x)      ((x >> 8) & SH_FSI_FMT_MASK)
  56 #define SH_FSI_GET_OFMT(x)      ((x >> 0) & SH_FSI_FMT_MASK)
  57
  58 #define SH_FSI_FMT_MONO         (1 << 0)
  59 #define SH_FSI_FMT_MONO_DELAY   (1 << 1)
  60 #define SH_FSI_FMT_PCM          (1 << 2)
  61 #define SH_FSI_FMT_I2S          (1 << 3)
  62 #define SH_FSI_FMT_TDM          (1 << 4)
  63 #define SH_FSI_FMT_TDM_DELAY    (1 << 5)
  64
  65 #define SH_FSI_IFMT_TDM_CH(x) \
  66         (SH_FSI_IFMT(TDM)       | SH_FSI_SET_CH_I(x))
  67 #define SH_FSI_IFMT_TDM_DELAY_CH(x) \
  68         (SH_FSI_IFMT(TDM_DELAY) | SH_FSI_SET_CH_I(x))
  69
  70 #define SH_FSI_OFMT_TDM_CH(x) \
  71         (SH_FSI_OFMT(TDM)       | SH_FSI_SET_CH_O(x))
  72 #define SH_FSI_OFMT_TDM_DELAY_CH(x) \
  73         (SH_FSI_OFMT(TDM_DELAY) | SH_FSI_SET_CH_O(x))
  74
  75 struct sh_fsi_platform_info {
  76         unsigned long porta_flags;
  77         unsigned long portb_flags;
  78 };
  79
  80 extern struct snd_soc_dai fsi_soc_dai[2];
  81 extern struct snd_soc_platform fsi_soc_platform;
  82
  83 #endif /* __SOUND_FSI_H */