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 #define FSI_PORT_A      0
  16 #define FSI_PORT_B      1
  17
  18 /* flags format
  19
  20  * 0xABCDEEFF
  21  *
  22  * A:  channel size for TDM (input)
  23  * B:  channel size for TDM (ooutput)
  24  * C:  inversion
  25  * D:  mode
  26  * E:  input format
  27  * F:  output format
  28  */
  29
  30 #include <linux/clk.h>
  31 #include <sound/soc.h>
  32
  33 /* TDM channel */
  34 #define SH_FSI_SET_CH_I(x)      ((x & 0xF) << 28)
  35 #define SH_FSI_SET_CH_O(x)      ((x & 0xF) << 24)
  36
  37 #define SH_FSI_CH_IMASK         0xF0000000
  38 #define SH_FSI_CH_OMASK         0x0F000000
  39 #define SH_FSI_GET_CH_I(x)      ((x & SH_FSI_CH_IMASK) >> 28)
  40 #define SH_FSI_GET_CH_O(x)      ((x & SH_FSI_CH_OMASK) >> 24)
  41
  42 /* clock inversion */
  43 #define SH_FSI_INVERSION_MASK   0x00F00000
  44 #define SH_FSI_LRM_INV          (1 << 20)
  45 #define SH_FSI_BRM_INV          (1 << 21)
  46 #define SH_FSI_LRS_INV          (1 << 22)
  47 #define SH_FSI_BRS_INV          (1 << 23)
  48
  49 /* mode */
  50 #define SH_FSI_MODE_MASK        0x000F0000
  51 #define SH_FSI_IN_SLAVE_MODE    (1 << 16)  /* default master mode */
  52 #define SH_FSI_OUT_SLAVE_MODE   (1 << 17)  /* default master mode */
  53
  54 /* DI format */
  55 #define SH_FSI_FMT_MASK         0x000000FF
  56 #define SH_FSI_IFMT(x)          (((SH_FSI_FMT_ ## x) & SH_FSI_FMT_MASK) << 8)
  57 #define SH_FSI_OFMT(x)          (((SH_FSI_FMT_ ## x) & SH_FSI_FMT_MASK) << 0)
  58 #define SH_FSI_GET_IFMT(x)      ((x >> 8) & SH_FSI_FMT_MASK)
  59 #define SH_FSI_GET_OFMT(x)      ((x >> 0) & SH_FSI_FMT_MASK)
  60
  61 #define SH_FSI_FMT_MONO         0
  62 #define SH_FSI_FMT_MONO_DELAY   1
  63 #define SH_FSI_FMT_PCM          2
  64 #define SH_FSI_FMT_I2S          3
  65 #define SH_FSI_FMT_TDM          4
  66 #define SH_FSI_FMT_TDM_DELAY    5
  67 #define SH_FSI_FMT_SPDIF        6
  68
  69
  70 #define SH_FSI_IFMT_TDM_CH(x) \
  71         (SH_FSI_IFMT(TDM)       | SH_FSI_SET_CH_I(x))
  72 #define SH_FSI_IFMT_TDM_DELAY_CH(x) \
  73         (SH_FSI_IFMT(TDM_DELAY) | SH_FSI_SET_CH_I(x))
  74
  75 #define SH_FSI_OFMT_TDM_CH(x) \
  76         (SH_FSI_OFMT(TDM)       | SH_FSI_SET_CH_O(x))
  77 #define SH_FSI_OFMT_TDM_DELAY_CH(x) \
  78         (SH_FSI_OFMT(TDM_DELAY) | SH_FSI_SET_CH_O(x))
  79
  80
  81 /*
  82  * set_rate return value
  83  *
  84  * see ACKMD/BPFMD on
  85  *     ACK_MD (FSI2)
  86  *     CKG1   (FSI)
  87  *
  88  * err          : return value <  0
  89  * no change    : return value == 0
  90  * change xMD   : return value >  0
  91  *
  92  * 0x-00000AB
  93  *
  94  * A:  ACKMD value
  95  * B:  BPFMD value
  96  */
  97
  98 #define SH_FSI_ACKMD_MASK       (0xF << 0)
  99 #define SH_FSI_ACKMD_512        (1 << 0)
 100 #define SH_FSI_ACKMD_256        (2 << 0)
 101 #define SH_FSI_ACKMD_128        (3 << 0)
 102 #define SH_FSI_ACKMD_64         (4 << 0)
 103 #define SH_FSI_ACKMD_32         (5 << 0)
 104
 105 #define SH_FSI_BPFMD_MASK       (0xF << 4)
 106 #define SH_FSI_BPFMD_512        (1 << 4)
 107 #define SH_FSI_BPFMD_256        (2 << 4)
 108 #define SH_FSI_BPFMD_128        (3 << 4)
 109 #define SH_FSI_BPFMD_64         (4 << 4)
 110 #define SH_FSI_BPFMD_32         (5 << 4)
 111 #define SH_FSI_BPFMD_16         (6 << 4)
 112
 113 struct sh_fsi_platform_info {
 114         unsigned long porta_flags;
 115         unsigned long portb_flags;
 116         int (*set_rate)(struct device *dev, int is_porta, int rate, int enable);
 117 };
 118
 119 #endif /* __SOUND_FSI_H */