1/*
2 * Renesas R-Car SRU/SCU/SSIU/SSI support
3 *
4 * Copyright (C) 2013 Renesas Solutions Corp.
5 * Kuninori Morimoto <kuninori.morimoto.gx@renesas.com>
6 *
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
10 */
11
12#ifndef RCAR_SND_H
13#define RCAR_SND_H
14
15#include <linux/sh_clk.h>
16
17#define RSND_GEN1_SRU	0
18#define RSND_GEN1_ADG	1
19#define RSND_GEN1_SSI	2
20
21#define RSND_GEN2_SCU	0
22#define RSND_GEN2_ADG	1
23#define RSND_GEN2_SSIU	2
24#define RSND_GEN2_SSI	3
25
26#define RSND_BASE_MAX	4
27
28/*
29 * flags
30 *
31 * 0xAB000000
32 *
33 * A : clock sharing settings
34 * B : SSI direction
35 */
36#define RSND_SSI_CLK_PIN_SHARE		(1 << 31)
37#define RSND_SSI_NO_BUSIF		(1 << 30) /* SSI+DMA without BUSIF */
38
39#define RSND_SSI(_dma_id, _irq, _flags)		\
40{ .dma_id = _dma_id, .irq = _irq, .flags = _flags }
41#define RSND_SSI_UNUSED \
42{ .dma_id = -1, .irq = -1, .flags = 0 }
43
44struct rsnd_ssi_platform_info {
45	int dma_id;
46	int irq;
47	u32 flags;
48};
49
50#define RSND_SRC(rate, _dma_id)						\
51{ .convert_rate = rate, .dma_id = _dma_id, }
52#define RSND_SRC_UNUSED				\
53{ .convert_rate = 0, .dma_id = -1, }
54
55struct rsnd_src_platform_info {
56	u32 convert_rate; /* sampling rate convert */
57	int dma_id; /* for Gen2 SCU */
58	int irq;
59};
60
61/*
62 * flags
63 */
64struct rsnd_dvc_platform_info {
65	u32 flags;
66};
67
68struct rsnd_dai_path_info {
69	struct rsnd_ssi_platform_info *ssi;
70	struct rsnd_src_platform_info *src;
71	struct rsnd_dvc_platform_info *dvc;
72};
73
74struct rsnd_dai_platform_info {
75	struct rsnd_dai_path_info playback;
76	struct rsnd_dai_path_info capture;
77};
78
79/*
80 * flags
81 *
82 * 0x0000000A
83 *
84 * A : generation
85 */
86#define RSND_GEN_MASK	(0xF << 0)
87#define RSND_GEN1	(1 << 0) /* fixme */
88#define RSND_GEN2	(2 << 0) /* fixme */
89
90struct rcar_snd_info {
91	u32 flags;
92	struct rsnd_ssi_platform_info *ssi_info;
93	int ssi_info_nr;
94	struct rsnd_src_platform_info *src_info;
95	int src_info_nr;
96	struct rsnd_dvc_platform_info *dvc_info;
97	int dvc_info_nr;
98	struct rsnd_dai_platform_info *dai_info;
99	int dai_info_nr;
100	int (*start)(int id);
101	int (*stop)(int id);
102};
103
104#endif
105