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  * 0x00000CBA
  25  *
  26  * A:  inversion
  27  * B:  format mode
  28  * C:  chip specific
  29  * D:  clock selecter if master mode
  30  */
  31
  32 /* B: format mode */
  33 #define SH_FSI_FMT_MASK         0x000000F0
  34 #define SH_FSI_FMT_DAI          (0 << 4)
  35 #define SH_FSI_FMT_SPDIF        (1 << 4)
  36
  37 /* C: chip specific */
  38 #define SH_FSI_OPTION_MASK      0x00000F00
  39 #define SH_FSI_ENABLE_STREAM_MODE       (1 << 8) /* for 16bit data */
  40
  41 /* D:  clock selecter if master mode */
  42 #define SH_FSI_CLK_MASK         0x0000F000
  43 #define SH_FSI_CLK_EXTERNAL     (0 << 12)
  44 #define SH_FSI_CLK_CPG          (1 << 12) /* FSIxCK + FSI-DIV */
  45
  46 struct sh_fsi_port_info {
  47         unsigned long flags;
  48         int tx_id;
  49         int rx_id;
  50 };
  51
  52 struct sh_fsi_platform_info {
  53         struct sh_fsi_port_info port_a;
  54         struct sh_fsi_port_info port_b;
  55 };
  56
  57 #endif /* __SOUND_FSI_H */