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 #include <linux/clk.h>
  19 #include <sound/soc.h>
  20
  21 /*
  22  * flags format
  23  *
  24  * 0x000000BA
  25  *
  26  * A:  inversion
  27  * B:  format mode
  28  */
  29
  30 /* A: clock inversion */
  31 #define SH_FSI_INVERSION_MASK   0x0000000F
  32 #define SH_FSI_LRM_INV          (1 << 0)
  33 #define SH_FSI_BRM_INV          (1 << 1)
  34 #define SH_FSI_LRS_INV          (1 << 2)
  35 #define SH_FSI_BRS_INV          (1 << 3)
  36
  37 /* B: format mode */
  38 #define SH_FSI_FMT_MASK         0x000000F0
  39 #define SH_FSI_FMT_DAI          (0 << 4)
  40 #define SH_FSI_FMT_SPDIF        (1 << 4)
  41
  42
  43 /*
  44  * set_rate return value
  45  *
  46  * see ACKMD/BPFMD on
  47  *     ACK_MD (FSI2)
  48  *     CKG1   (FSI)
  49  *
  50  * err          : return value <  0
  51  * no change    : return value == 0
  52  * change xMD   : return value >  0
  53  *
  54  * 0x-00000AB
  55  *
  56  * A:  ACKMD value
  57  * B:  BPFMD value
  58  */
  59
  60 #define SH_FSI_ACKMD_MASK       (0xF << 0)
  61 #define SH_FSI_ACKMD_512        (1 << 0)
  62 #define SH_FSI_ACKMD_256        (2 << 0)
  63 #define SH_FSI_ACKMD_128        (3 << 0)
  64 #define SH_FSI_ACKMD_64         (4 << 0)
  65 #define SH_FSI_ACKMD_32         (5 << 0)
  66
  67 #define SH_FSI_BPFMD_MASK       (0xF << 4)
  68 #define SH_FSI_BPFMD_512        (1 << 4)
  69 #define SH_FSI_BPFMD_256        (2 << 4)
  70 #define SH_FSI_BPFMD_128        (3 << 4)
  71 #define SH_FSI_BPFMD_64         (4 << 4)
  72 #define SH_FSI_BPFMD_32         (5 << 4)
  73 #define SH_FSI_BPFMD_16         (6 << 4)
  74
  75 struct sh_fsi_platform_info {
  76         unsigned long porta_flags;
  77         unsigned long portb_flags;
  78         int (*set_rate)(struct device *dev, int is_porta, int rate, int enable);
  79 };
  80
  81 #endif /* __SOUND_FSI_H */