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authorKuninori Morimoto <morimoto.kuninori@renesas.com>2009-08-20 08:01:05 -0400
committerMark Brown <broonie@opensource.wolfsonmicro.com>2009-08-20 15:01:42 -0400
commita4d7d550a9cfdfbc615383a08e9afa39d5a6d875 (patch)
treeb4a9076fe9e0e5f0f5175fe858e7a28fe94e8a29 /include/sound
parentf61c890ec631884c5b7cd8723cd8ae1917dca544 (diff)
ASoC: Add SuperH FSI driver support for ALSA
This driver is very simple. It support playback only now. This patch is tested by ms7724se board. Signed-off-by: Kuninori Morimoto <morimoto.kuninori@renesas.com> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com>
Diffstat (limited to 'include/sound')
-rw-r--r--include/sound/sh_fsi.h83
1 files changed, 83 insertions, 0 deletions
diff --git a/include/sound/sh_fsi.h b/include/sound/sh_fsi.h
new file mode 100644
index 000000000000..c0227361a876
--- /dev/null
+++ b/include/sound/sh_fsi.h
@@ -0,0 +1,83 @@
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
75struct sh_fsi_platform_info {
76 unsigned long porta_flags;
77 unsigned long portb_flags;
78};
79
80extern struct snd_soc_dai fsi_soc_dai[2];
81extern struct snd_soc_platform fsi_soc_platform;
82
83#endif /* __SOUND_FSI_H */