tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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_SYNC (1 << 29) /* SSI34_sync etc */
38
39#define RSND_SSI_PLAY (1 << 24)
40
41#define RSND_SSI_SET(_dai_id, _dma_id, _pio_irq, _flags) \
42{ .dai_id = _dai_id, .dma_id = _dma_id, .pio_irq = _pio_irq, .flags = _flags }
43#define RSND_SSI_UNUSED \
44{ .dai_id = -1, .dma_id = -1, .pio_irq = -1, .flags = 0 }
45
46struct rsnd_ssi_platform_info {
47 int dai_id;
48 int dma_id;
49 int pio_irq;
50 u32 flags;
51};
52
53/*
54 * flags
55 */
56#define RSND_SCU_USE_HPBIF (1 << 31) /* it needs RSND_SSI_DEPENDENT */
57
58struct rsnd_scu_platform_info {
59 u32 flags;
60 u32 convert_rate; /* sampling rate convert */
61};
62
63/*
64 * flags
65 *
66 * 0x0000000A
67 *
68 * A : generation
69 */
70#define RSND_GEN_MASK (0xF << 0)
71#define RSND_GEN1 (1 << 0) /* fixme */
72#define RSND_GEN2 (2 << 0) /* fixme */
73
74struct rcar_snd_info {
75 u32 flags;
76 struct rsnd_ssi_platform_info *ssi_info;
77 int ssi_info_nr;
78 struct rsnd_scu_platform_info *scu_info;
79 int scu_info_nr;
80 int (*start)(int id);
81 int (*stop)(int id);
82};
83
84#endif