1 /* SPDX-License-Identifier: GPL-2.0-or-later */
2 /*
3  * kirkwood.h
4  *
5  * (c) 2010 Arnaud Patard <apatard@mandriva.com>
6  */
7 
8 #ifndef _KIRKWOOD_AUDIO_H
9 #define _KIRKWOOD_AUDIO_H
10 
11 #define DRV_NAME	"mvebu-audio"
12 
13 #define KIRKWOOD_RECORD_WIN			0
14 #define KIRKWOOD_PLAYBACK_WIN			1
15 #define KIRKWOOD_MAX_AUDIO_WIN			2
16 
17 #define KIRKWOOD_AUDIO_WIN_BASE_REG(win)	(0xA00 + ((win)<<3))
18 #define KIRKWOOD_AUDIO_WIN_CTRL_REG(win)	(0xA04 + ((win)<<3))
19 
20 
21 #define KIRKWOOD_RECCTL			0x1000
22 #define KIRKWOOD_RECCTL_SPDIF_EN		(1<<11)
23 #define KIRKWOOD_RECCTL_I2S_EN			(1<<10)
24 #define KIRKWOOD_RECCTL_PAUSE			(1<<9)
25 #define KIRKWOOD_RECCTL_MUTE			(1<<8)
26 #define KIRKWOOD_RECCTL_BURST_MASK		(3<<5)
27 #define KIRKWOOD_RECCTL_BURST_128		(2<<5)
28 #define KIRKWOOD_RECCTL_BURST_32		(1<<5)
29 #define KIRKWOOD_RECCTL_MONO			(1<<4)
30 #define KIRKWOOD_RECCTL_MONO_CHAN_RIGHT	(1<<3)
31 #define KIRKWOOD_RECCTL_MONO_CHAN_LEFT		(0<<3)
32 #define KIRKWOOD_RECCTL_SIZE_MASK		(7<<0)
33 #define KIRKWOOD_RECCTL_SIZE_16		(7<<0)
34 #define KIRKWOOD_RECCTL_SIZE_16_C		(3<<0)
35 #define KIRKWOOD_RECCTL_SIZE_20		(2<<0)
36 #define KIRKWOOD_RECCTL_SIZE_24		(1<<0)
37 #define KIRKWOOD_RECCTL_SIZE_32		(0<<0)
38 
39 #define KIRKWOOD_RECCTL_ENABLE_MASK		(KIRKWOOD_RECCTL_SPDIF_EN | \
40 						 KIRKWOOD_RECCTL_I2S_EN)
41 
42 #define KIRKWOOD_REC_BUF_ADDR			0x1004
43 #define KIRKWOOD_REC_BUF_SIZE			0x1008
44 #define KIRKWOOD_REC_BYTE_COUNT			0x100C
45 
46 #define KIRKWOOD_PLAYCTL			0x1100
47 #define KIRKWOOD_PLAYCTL_PLAY_BUSY		(1<<16)
48 #define KIRKWOOD_PLAYCTL_BURST_MASK		(3<<11)
49 #define KIRKWOOD_PLAYCTL_BURST_128		(2<<11)
50 #define KIRKWOOD_PLAYCTL_BURST_32		(1<<11)
51 #define KIRKWOOD_PLAYCTL_PAUSE			(1<<9)
52 #define KIRKWOOD_PLAYCTL_SPDIF_MUTE		(1<<8)
53 #define KIRKWOOD_PLAYCTL_MONO_MASK		(3<<5)
54 #define KIRKWOOD_PLAYCTL_MONO_BOTH		(3<<5)
55 #define KIRKWOOD_PLAYCTL_MONO_OFF		(0<<5)
56 #define KIRKWOOD_PLAYCTL_I2S_MUTE		(1<<7)
57 #define KIRKWOOD_PLAYCTL_SPDIF_EN		(1<<4)
58 #define KIRKWOOD_PLAYCTL_I2S_EN			(1<<3)
59 #define KIRKWOOD_PLAYCTL_SIZE_MASK		(7<<0)
60 #define KIRKWOOD_PLAYCTL_SIZE_16		(7<<0)
61 #define KIRKWOOD_PLAYCTL_SIZE_16_C		(3<<0)
62 #define KIRKWOOD_PLAYCTL_SIZE_20		(2<<0)
63 #define KIRKWOOD_PLAYCTL_SIZE_24		(1<<0)
64 #define KIRKWOOD_PLAYCTL_SIZE_32		(0<<0)
65 
66 #define KIRKWOOD_PLAYCTL_ENABLE_MASK		(KIRKWOOD_PLAYCTL_SPDIF_EN | \
67 						 KIRKWOOD_PLAYCTL_I2S_EN)
68 
69 #define KIRKWOOD_PLAY_BUF_ADDR			0x1104
70 #define KIRKWOOD_PLAY_BUF_SIZE			0x1108
71 #define KIRKWOOD_PLAY_BYTE_COUNT		0x110C
72 
73 #define KIRKWOOD_DCO_CTL			0x1204
74 #define KIRKWOOD_DCO_CTL_OFFSET_MASK		(0xFFF<<2)
75 #define KIRKWOOD_DCO_CTL_OFFSET_0		(0x800<<2)
76 #define KIRKWOOD_DCO_CTL_FREQ_MASK		(3<<0)
77 #define KIRKWOOD_DCO_CTL_FREQ_11		(0<<0)
78 #define KIRKWOOD_DCO_CTL_FREQ_12		(1<<0)
79 #define KIRKWOOD_DCO_CTL_FREQ_24		(2<<0)
80 
81 #define KIRKWOOD_DCO_SPCR_STATUS		0x120c
82 #define KIRKWOOD_DCO_SPCR_STATUS_DCO_LOCK	(1<<16)
83 
84 #define KIRKWOOD_CLOCKS_CTRL			0x1230
85 #define KIRKWOOD_MCLK_SOURCE_MASK		(3<<0)
86 #define KIRKWOOD_MCLK_SOURCE_DCO		(0<<0)
87 #define KIRKWOOD_MCLK_SOURCE_EXTCLK		(3<<0)
88 
89 #define KIRKWOOD_ERR_CAUSE			0x1300
90 #define KIRKWOOD_ERR_MASK			0x1304
91 
92 #define KIRKWOOD_INT_CAUSE			0x1308
93 #define KIRKWOOD_INT_MASK			0x130C
94 #define KIRKWOOD_INT_CAUSE_PLAY_BYTES		(1<<14)
95 #define KIRKWOOD_INT_CAUSE_REC_BYTES		(1<<13)
96 #define KIRKWOOD_INT_CAUSE_DMA_PLAY_END	(1<<7)
97 #define KIRKWOOD_INT_CAUSE_DMA_PLAY_3Q		(1<<6)
98 #define KIRKWOOD_INT_CAUSE_DMA_PLAY_HALF	(1<<5)
99 #define KIRKWOOD_INT_CAUSE_DMA_PLAY_1Q		(1<<4)
100 #define KIRKWOOD_INT_CAUSE_DMA_REC_END		(1<<3)
101 #define KIRKWOOD_INT_CAUSE_DMA_REC_3Q		(1<<2)
102 #define KIRKWOOD_INT_CAUSE_DMA_REC_HALF	(1<<1)
103 #define KIRKWOOD_INT_CAUSE_DMA_REC_1Q		(1<<0)
104 
105 #define KIRKWOOD_REC_BYTE_INT_COUNT		0x1310
106 #define KIRKWOOD_PLAY_BYTE_INT_COUNT		0x1314
107 #define KIRKWOOD_BYTE_INT_COUNT_MASK		0xffffff
108 
109 #define KIRKWOOD_I2S_PLAYCTL			0x2508
110 #define KIRKWOOD_I2S_RECCTL			0x2408
111 #define KIRKWOOD_I2S_CTL_JUST_MASK		(0xf<<26)
112 #define KIRKWOOD_I2S_CTL_LJ			(0<<26)
113 #define KIRKWOOD_I2S_CTL_I2S			(5<<26)
114 #define KIRKWOOD_I2S_CTL_RJ			(8<<26)
115 #define KIRKWOOD_I2S_CTL_SIZE_MASK		(3<<30)
116 #define KIRKWOOD_I2S_CTL_SIZE_16		(3<<30)
117 #define KIRKWOOD_I2S_CTL_SIZE_20		(2<<30)
118 #define KIRKWOOD_I2S_CTL_SIZE_24		(1<<30)
119 #define KIRKWOOD_I2S_CTL_SIZE_32		(0<<30)
120 
121 #define KIRKWOOD_AUDIO_BUF_MAX			(16*1024*1024)
122 
123 /* Theses values come from the marvell alsa driver */
124 /* need to find where they come from               */
125 #define KIRKWOOD_SND_MIN_PERIODS		2
126 #define KIRKWOOD_SND_MAX_PERIODS		16
127 #define KIRKWOOD_SND_MIN_PERIOD_BYTES		256
128 #define KIRKWOOD_SND_MAX_PERIOD_BYTES		0x8000
129 #define KIRKWOOD_SND_MAX_BUFFER_BYTES		(KIRKWOOD_SND_MAX_PERIOD_BYTES \
130 						 * KIRKWOOD_SND_MAX_PERIODS)
131 
132 struct kirkwood_dma_data {
133 	void __iomem *io;
134 	struct clk *clk;
135 	struct clk *extclk;
136 	uint32_t ctl_play;
137 	uint32_t ctl_rec;
138 	struct snd_pcm_substream *substream_play;
139 	struct snd_pcm_substream *substream_rec;
140 	int irq;
141 	int burst;
142 };
143 
144 extern const struct snd_soc_component_driver kirkwood_soc_component;
145 
146 #endif
147