1/*
2 * kirkwood.h
3 *
4 * (c) 2010 Arnaud Patard <apatard@mandriva.com>
5 *
6 *  This program is free software; you can redistribute  it and/or modify it
7 *  under  the terms of  the GNU General  Public License as published by the
8 *  Free Software Foundation;  either version 2 of the  License, or (at your
9 *  option) any later version.
10 */
11
12#ifndef _KIRKWOOD_AUDIO_H
13#define _KIRKWOOD_AUDIO_H
14
15#define KIRKWOOD_RECORD_WIN			0
16#define KIRKWOOD_PLAYBACK_WIN			1
17#define KIRKWOOD_MAX_AUDIO_WIN			2
18
19#define KIRKWOOD_AUDIO_WIN_BASE_REG(win)	(0xA00 + ((win)<<3))
20#define KIRKWOOD_AUDIO_WIN_CTRL_REG(win)	(0xA04 + ((win)<<3))
21
22
23#define KIRKWOOD_RECCTL			0x1000
24#define KIRKWOOD_RECCTL_SPDIF_EN		(1<<11)
25#define KIRKWOOD_RECCTL_I2S_EN			(1<<10)
26#define KIRKWOOD_RECCTL_PAUSE			(1<<9)
27#define KIRKWOOD_RECCTL_MUTE			(1<<8)
28#define KIRKWOOD_RECCTL_BURST_MASK		(3<<5)
29#define KIRKWOOD_RECCTL_BURST_128		(2<<5)
30#define KIRKWOOD_RECCTL_BURST_32		(1<<5)
31#define KIRKWOOD_RECCTL_MONO			(1<<4)
32#define KIRKWOOD_RECCTL_MONO_CHAN_RIGHT	(1<<3)
33#define KIRKWOOD_RECCTL_MONO_CHAN_LEFT		(0<<3)
34#define KIRKWOOD_RECCTL_SIZE_MASK		(7<<0)
35#define KIRKWOOD_RECCTL_SIZE_16		(7<<0)
36#define KIRKWOOD_RECCTL_SIZE_16_C		(3<<0)
37#define KIRKWOOD_RECCTL_SIZE_20		(2<<0)
38#define KIRKWOOD_RECCTL_SIZE_24		(1<<0)
39#define KIRKWOOD_RECCTL_SIZE_32		(0<<0)
40
41#define KIRKWOOD_RECCTL_ENABLE_MASK		(KIRKWOOD_RECCTL_SPDIF_EN | \
42						 KIRKWOOD_RECCTL_I2S_EN)
43
44#define KIRKWOOD_REC_BUF_ADDR			0x1004
45#define KIRKWOOD_REC_BUF_SIZE			0x1008
46#define KIRKWOOD_REC_BYTE_COUNT			0x100C
47
48#define KIRKWOOD_PLAYCTL			0x1100
49#define KIRKWOOD_PLAYCTL_PLAY_BUSY		(1<<16)
50#define KIRKWOOD_PLAYCTL_BURST_MASK		(3<<11)
51#define KIRKWOOD_PLAYCTL_BURST_128		(2<<11)
52#define KIRKWOOD_PLAYCTL_BURST_32		(1<<11)
53#define KIRKWOOD_PLAYCTL_PAUSE			(1<<9)
54#define KIRKWOOD_PLAYCTL_SPDIF_MUTE		(1<<8)
55#define KIRKWOOD_PLAYCTL_MONO_MASK		(3<<5)
56#define KIRKWOOD_PLAYCTL_MONO_BOTH		(3<<5)
57#define KIRKWOOD_PLAYCTL_MONO_OFF		(0<<5)
58#define KIRKWOOD_PLAYCTL_I2S_MUTE		(1<<7)
59#define KIRKWOOD_PLAYCTL_SPDIF_EN		(1<<4)
60#define KIRKWOOD_PLAYCTL_I2S_EN			(1<<3)
61#define KIRKWOOD_PLAYCTL_SIZE_MASK		(7<<0)
62#define KIRKWOOD_PLAYCTL_SIZE_16		(7<<0)
63#define KIRKWOOD_PLAYCTL_SIZE_16_C		(3<<0)
64#define KIRKWOOD_PLAYCTL_SIZE_20		(2<<0)
65#define KIRKWOOD_PLAYCTL_SIZE_24		(1<<0)
66#define KIRKWOOD_PLAYCTL_SIZE_32		(0<<0)
67
68#define KIRKWOOD_PLAYCTL_ENABLE_MASK		(KIRKWOOD_PLAYCTL_SPDIF_EN | \
69						 KIRKWOOD_PLAYCTL_I2S_EN)
70
71#define KIRKWOOD_PLAY_BUF_ADDR			0x1104
72#define KIRKWOOD_PLAY_BUF_SIZE			0x1108
73#define KIRKWOOD_PLAY_BYTE_COUNT		0x110C
74
75#define KIRKWOOD_DCO_CTL			0x1204
76#define KIRKWOOD_DCO_CTL_OFFSET_MASK		(0xFFF<<2)
77#define KIRKWOOD_DCO_CTL_OFFSET_0		(0x800<<2)
78#define KIRKWOOD_DCO_CTL_FREQ_MASK		(3<<0)
79#define KIRKWOOD_DCO_CTL_FREQ_11		(0<<0)
80#define KIRKWOOD_DCO_CTL_FREQ_12		(1<<0)
81#define KIRKWOOD_DCO_CTL_FREQ_24		(2<<0)
82
83#define KIRKWOOD_DCO_SPCR_STATUS		0x120c
84#define KIRKWOOD_DCO_SPCR_STATUS_DCO_LOCK	(1<<16)
85
86#define KIRKWOOD_CLOCKS_CTRL			0x1230
87#define KIRKWOOD_MCLK_SOURCE_MASK		(3<<0)
88#define KIRKWOOD_MCLK_SOURCE_DCO		(0<<0)
89#define KIRKWOOD_MCLK_SOURCE_EXTCLK		(3<<0)
90
91#define KIRKWOOD_ERR_CAUSE			0x1300
92#define KIRKWOOD_ERR_MASK			0x1304
93
94#define KIRKWOOD_INT_CAUSE			0x1308
95#define KIRKWOOD_INT_MASK			0x130C
96#define KIRKWOOD_INT_CAUSE_PLAY_BYTES		(1<<14)
97#define KIRKWOOD_INT_CAUSE_REC_BYTES		(1<<13)
98#define KIRKWOOD_INT_CAUSE_DMA_PLAY_END	(1<<7)
99#define KIRKWOOD_INT_CAUSE_DMA_PLAY_3Q		(1<<6)
100#define KIRKWOOD_INT_CAUSE_DMA_PLAY_HALF	(1<<5)
101#define KIRKWOOD_INT_CAUSE_DMA_PLAY_1Q		(1<<4)
102#define KIRKWOOD_INT_CAUSE_DMA_REC_END		(1<<3)
103#define KIRKWOOD_INT_CAUSE_DMA_REC_3Q		(1<<2)
104#define KIRKWOOD_INT_CAUSE_DMA_REC_HALF	(1<<1)
105#define KIRKWOOD_INT_CAUSE_DMA_REC_1Q		(1<<0)
106
107#define KIRKWOOD_REC_BYTE_INT_COUNT		0x1310
108#define KIRKWOOD_PLAY_BYTE_INT_COUNT		0x1314
109#define KIRKWOOD_BYTE_INT_COUNT_MASK		0xffffff
110
111#define KIRKWOOD_I2S_PLAYCTL			0x2508
112#define KIRKWOOD_I2S_RECCTL			0x2408
113#define KIRKWOOD_I2S_CTL_JUST_MASK		(0xf<<26)
114#define KIRKWOOD_I2S_CTL_LJ			(0<<26)
115#define KIRKWOOD_I2S_CTL_I2S			(5<<26)
116#define KIRKWOOD_I2S_CTL_RJ			(8<<26)
117#define KIRKWOOD_I2S_CTL_SIZE_MASK		(3<<30)
118#define KIRKWOOD_I2S_CTL_SIZE_16		(3<<30)
119#define KIRKWOOD_I2S_CTL_SIZE_20		(2<<30)
120#define KIRKWOOD_I2S_CTL_SIZE_24		(1<<30)
121#define KIRKWOOD_I2S_CTL_SIZE_32		(0<<30)
122
123#define KIRKWOOD_AUDIO_BUF_MAX			(16*1024*1024)
124
125/* Theses values come from the marvell alsa driver */
126/* need to find where they come from               */
127#define KIRKWOOD_SND_MIN_PERIODS		2
128#define KIRKWOOD_SND_MAX_PERIODS		16
129#define KIRKWOOD_SND_MIN_PERIOD_BYTES		256
130#define KIRKWOOD_SND_MAX_PERIOD_BYTES		0x8000
131#define KIRKWOOD_SND_MAX_BUFFER_BYTES		(KIRKWOOD_SND_MAX_PERIOD_BYTES \
132						 * KIRKWOOD_SND_MAX_PERIODS)
133
134struct kirkwood_dma_data {
135	void __iomem *io;
136	struct clk *clk;
137	struct clk *extclk;
138	uint32_t ctl_play;
139	uint32_t ctl_rec;
140	struct snd_pcm_substream *substream_play;
141	struct snd_pcm_substream *substream_rec;
142	int irq;
143	int burst;
144};
145
146extern struct snd_soc_platform_driver kirkwood_soc_platform;
147
148#endif
149