summaryrefslogtreecommitdiffstats
path: root/kernel/include/sound/rcar_snd.h
blob: 4cecd0c175f607c7f3cae2a2fb03660f81131799 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
/*
 * Renesas R-Car SRU/SCU/SSIU/SSI support
 *
 * Copyright (C) 2013 Renesas Solutions Corp.
 * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License version 2 as
 * published by the Free Software Foundation.
 */

#ifndef RCAR_SND_H
#define RCAR_SND_H

#include <linux/sh_clk.h>

#define RSND_GEN1_SRU	0
#define RSND_GEN1_ADG	1
#define RSND_GEN1_SSI	2

#define RSND_GEN2_SCU	0
#define RSND_GEN2_ADG	1
#define RSND_GEN2_SSIU	2
#define RSND_GEN2_SSI	3

#define RSND_BASE_MAX	4

/*
 * flags
 *
 * 0xAB000000
 *
 * A : clock sharing settings
 * B : SSI direction
 */
#define RSND_SSI_CLK_PIN_SHARE		(1 << 31)
#define RSND_SSI_NO_BUSIF		(1 << 30) /* SSI+DMA without BUSIF */

#define RSND_SSI(_dma_id, _irq, _flags)		\
{ .dma_id = _dma_id, .irq = _irq, .flags = _flags }
#define RSND_SSI_UNUSED \
{ .dma_id = -1, .irq = -1, .flags = 0 }

struct rsnd_ssi_platform_info {
	int dma_id;
	int irq;
	u32 flags;
};

#define RSND_SRC(rate, _dma_id)						\
{ .convert_rate = rate, .dma_id = _dma_id, }
#define RSND_SRC_UNUSED				\
{ .convert_rate = 0, .dma_id = -1, }

struct rsnd_src_platform_info {
	u32 convert_rate; /* sampling rate convert */
	int dma_id; /* for Gen2 SCU */
	int irq;
};

/*
 * flags
 */
struct rsnd_dvc_platform_info {
	u32 flags;
};

struct rsnd_dai_path_info {
	struct rsnd_ssi_platform_info *ssi;
	struct rsnd_src_platform_info *src;
	struct rsnd_dvc_platform_info *dvc;
};

struct rsnd_dai_platform_info {
	struct rsnd_dai_path_info playback;
	struct rsnd_dai_path_info capture;
};

/*
 * flags
 *
 * 0x0000000A
 *
 * A : generation
 */
#define RSND_GEN_MASK	(0xF << 0)
#define RSND_GEN1	(1 << 0) /* fixme */
#define RSND_GEN2	(2 << 0) /* fixme */

struct rcar_snd_info {
	u32 flags;
	struct rsnd_ssi_platform_info *ssi_info;
	int ssi_info_nr;
	struct rsnd_src_platform_info *src_info;
	int src_info_nr;
	struct rsnd_dvc_platform_info *dvc_info;
	int dvc_info_nr;
	struct rsnd_dai_platform_info *dai_info;
	int dai_info_nr;
	int (*start)(int id);
	int (*stop)(int id);
};

#endif