summaryrefslogtreecommitdiffstats
path: root/sound/soc/imx/imx-ssi.h
blob: 0a84cec3599e08d43d02728ee15a056fbcef03e8 (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
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
/*
 * 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 _IMX_SSI_H
#define _IMX_SSI_H

#define SSI_STX0	0x00
#define SSI_STX1	0x04
#define SSI_SRX0	0x08
#define SSI_SRX1	0x0c

#define SSI_SCR		0x10
#define SSI_SCR_CLK_IST		(1 << 9)
#define SSI_SCR_CLK_IST_SHIFT	9
#define SSI_SCR_TCH_EN		(1 << 8)
#define SSI_SCR_SYS_CLK_EN	(1 << 7)
#define SSI_SCR_I2S_MODE_NORM	(0 << 5)
#define SSI_SCR_I2S_MODE_MSTR	(1 << 5)
#define SSI_SCR_I2S_MODE_SLAVE	(2 << 5)
#define SSI_I2S_MODE_MASK	(3 << 5)
#define SSI_SCR_SYN		(1 << 4)
#define SSI_SCR_NET		(1 << 3)
#define SSI_SCR_RE		(1 << 2)
#define SSI_SCR_TE		(1 << 1)
#define SSI_SCR_SSIEN		(1 << 0)

#define SSI_SISR	0x14
#define SSI_SISR_MASK		((1 << 19) - 1)
#define SSI_SISR_CMDAU		(1 << 18)
#define SSI_SISR_CMDDU		(1 << 17)
#define SSI_SISR_RXT		(1 << 16)
#define SSI_SISR_RDR1		(1 << 15)
#define SSI_SISR_RDR0		(1 << 14)
#define SSI_SISR_TDE1		(1 << 13)
#define SSI_SISR_TDE0		(1 << 12)
#define SSI_SISR_ROE1		(1 << 11)
#define SSI_SISR_ROE0		(1 << 10)
#define SSI_SISR_TUE1		(1 << 9)
#define SSI_SISR_TUE0		(1 << 8)
#define SSI_SISR_TFS		(1 << 7)
#define SSI_SISR_RFS		(1 << 6)
#define SSI_SISR_TLS		(1 << 5)
#define SSI_SISR_RLS		(1 << 4)
#define SSI_SISR_RFF1		(1 << 3)
#define SSI_SISR_RFF0		(1 << 2)
#define SSI_SISR_TFE1		(1 << 1)
#define SSI_SISR_TFE0		(1 << 0)

#define SSI_SIER	0x18
#define SSI_SIER_RDMAE		(1 << 22)
#define SSI_SIER_RIE		(1 << 21)
#define SSI_SIER_TDMAE		(1 << 20)
#define SSI_SIER_TIE		(1 << 19)
#define SSI_SIER_CMDAU_EN	(1 << 18)
#define SSI_SIER_CMDDU_EN	(1 << 17)
#define SSI_SIER_RXT_EN		(1 << 16)
#define SSI_SIER_RDR1_EN	(1 << 15)
#define SSI_SIER_RDR0_EN	(1 << 14)
#define SSI_SIER_TDE1_EN	(1 << 13)
#define SSI_SIER_TDE0_EN	(1 << 12)
#define SSI_SIER_ROE1_EN	(1 << 11)
#define SSI_SIER_ROE0_EN	(1 << 10)
#define SSI_SIER_TUE1_EN	(1 << 9)
#define SSI_SIER_TUE0_EN	(1 << 8)
#define SSI_SIER_TFS_EN		(1 << 7)
#define SSI_SIER_RFS_EN		(1 << 6)
#define SSI_SIER_TLS_EN		(1 << 5)
#define SSI_SIER_RLS_EN		(1 << 4)
#define SSI_SIER_RFF1_EN	(1 << 3)
#define SSI_SIER_RFF0_EN	(1 << 2)
#define SSI_SIER_TFE1_EN	(1 << 1)
#define SSI_SIER_TFE0_EN	(1 << 0)

#define SSI_STCR	0x1c
#define SSI_STCR_TXBIT0		(1 << 9)
#define SSI_STCR_TFEN1		(1 << 8)
#define SSI_STCR_TFEN0		(1 << 7)
#define SSI_FIFO_ENABLE_0_SHIFT 7
#define SSI_STCR_TFDIR		(1 << 6)
#define SSI_STCR_TXDIR		(1 << 5)
#define SSI_STCR_TSHFD		(1 << 4)
#define SSI_STCR_TSCKP		(1 << 3)
#define SSI_STCR_TFSI		(1 << 2)
#define SSI_STCR_TFSL		(1 << 1)
#define SSI_STCR_TEFS		(1 << 0)

#define SSI_SRCR	0x20
#define SSI_SRCR_RXBIT0		(1 << 9)
#define SSI_SRCR_RFEN1		(1 << 8)
#define SSI_SRCR_RFEN0		(1 << 7)
#define SSI_FIFO_ENABLE_0_SHIFT 7
#define SSI_SRCR_RFDIR		(1 << 6)
#define SSI_SRCR_RXDIR		(1 << 5)
#define SSI_SRCR_RSHFD		(1 << 4)
#define SSI_SRCR_RSCKP		(1 << 3)
#define SSI_SRCR_RFSI		(1 << 2)
#define SSI_SRCR_RFSL		(1 << 1)
#define SSI_SRCR_REFS		(1 << 0)

#define SSI_SRCCR		0x28
#define SSI_SRCCR_DIV2		(1 << 18)
#define SSI_SRCCR_PSR		(1 << 17)
#define SSI_SRCCR_WL(x)		((((x) - 2) >> 1) << 13)
#define SSI_SRCCR_DC(x)		(((x) & 0x1f) << 8)
#define SSI_SRCCR_PM(x)		(((x) & 0xff) << 0)
#define SSI_SRCCR_WL_MASK	(0xf << 13)
#define SSI_SRCCR_DC_MASK	(0x1f << 8)
#define SSI_SRCCR_PM_MASK	(0xff << 0)

#define SSI_STCCR		0x24
#define SSI_STCCR_DIV2		(1 << 18)
#define SSI_STCCR_PSR		(1 << 17)
#define SSI_STCCR_WL(x)		((((x) - 2) >> 1) << 13)
#define SSI_STCCR_DC(x)		(((x) & 0x1f) << 8)
#define SSI_STCCR_PM(x)		(((x) & 0xff) << 0)
#define SSI_STCCR_WL_MASK	(0xf << 13)
#define SSI_STCCR_DC_MASK	(0x1f << 8)
#define SSI_STCCR_PM_MASK	(0xff << 0)

#define SSI_SFCSR	0x2c
#define SSI_SFCSR_RFCNT1(x)	(((x) & 0xf) << 28)
#define SSI_RX_FIFO_1_COUNT_SHIFT 28
#define SSI_SFCSR_TFCNT1(x)	(((x) & 0xf) << 24)
#define SSI_TX_FIFO_1_COUNT_SHIFT 24
#define SSI_SFCSR_RFWM1(x)	(((x) & 0xf) << 20)
#define SSI_SFCSR_TFWM1(x)	(((x) & 0xf) << 16)
#define SSI_SFCSR_RFCNT0(x)	(((x) & 0xf) << 12)
#define SSI_RX_FIFO_0_COUNT_SHIFT 12
#define SSI_SFCSR_TFCNT0(x)	(((x) & 0xf) <<  8)
#define SSI_TX_FIFO_0_COUNT_SHIFT 8
#define SSI_SFCSR_RFWM0(x)	(((x) & 0xf) <<  4)
#define SSI_SFCSR_TFWM0(x)	(((x) & 0xf) <<  0)
#define SSI_SFCSR_RFWM0_MASK	(0xf <<  4)
#define SSI_SFCSR_TFWM0_MASK	(0xf <<  0)

#define SSI_STR		0x30
#define SSI_STR_TEST		(1 << 15)
#define SSI_STR_RCK2TCK		(1 << 14)
#define SSI_STR_RFS2TFS		(1 << 13)
#define SSI_STR_RXSTATE(x)	(((x) & 0xf) << 8)
#define SSI_STR_TXD2RXD		(1 <<  7)
#define SSI_STR_TCK2RCK		(1 <<  6)
#define SSI_STR_TFS2RFS		(1 <<  5)
#define SSI_STR_TXSTATE(x)	(((x) & 0xf) << 0)

#define SSI_SOR		0x34
#define SSI_SOR_CLKOFF		(1 << 6)
#define SSI_SOR_RX_CLR		(1 << 5)
#define SSI_SOR_TX_CLR		(1 << 4)
#define SSI_SOR_INIT		(1 << 3)
#define SSI_SOR_WAIT(x)		(((x) & 0x3) << 1)
#define SSI_SOR_WAIT_MASK	(0x3 << 1)
#define SSI_SOR_SYNRST		(1 << 0)

#define SSI_SACNT	0x38
#define SSI_SACNT_FRDIV(x)	(((x) & 0x3f) << 5)
#define SSI_SACNT_WR		(1 << 4)
#define SSI_SACNT_RD		(1 << 3)
#define SSI_SACNT_TIF		(1 << 2)
#define SSI_SACNT_FV		(1 << 1)
#define SSI_SACNT_AC97EN	(1 << 0)

#define SSI_SACADD	0x3c
#define SSI_SACDAT	0x40
#define SSI_SATAG	0x44
#define SSI_STMSK	0x48
#define SSI_SRMSK	0x4c
#define SSI_SACCST	0x50
#define SSI_SACCEN	0x54
#define SSI_SACCDIS	0x58

/* SSI clock sources */
#define IMX_SSP_SYS_CLK		0

/* SSI audio dividers */
#define IMX_SSI_TX_DIV_2	0
#define IMX_SSI_TX_DIV_PSR	1
#define IMX_SSI_TX_DIV_PM	2
#define IMX_SSI_RX_DIV_2	3
#define IMX_SSI_RX_DIV_PSR	4
#define IMX_SSI_RX_DIV_PM	5

#define DRV_NAME "imx-ssi"

#include <linux/dmaengine.h>
#include <mach/dma.h>

struct imx_pcm_dma_params {
	int dma;
	unsigned long dma_addr;
	int burstsize;
};

struct imx_ssi {
	struct platform_device *ac97_dev;

	struct snd_soc_dai *imx_ac97;
	struct clk *clk;
	void __iomem *base;
	int irq;
	int fiq_enable;
	unsigned int offset;

	unsigned int flags;

	void (*ac97_reset) (struct snd_ac97 *ac97);
	void (*ac97_warm_reset)(struct snd_ac97 *ac97);

	struct imx_pcm_dma_params	dma_params_rx;
	struct imx_pcm_dma_params	dma_params_tx;

	int enabled;

	struct platform_device *soc_platform_pdev;
	struct platform_device *soc_platform_pdev_fiq;
};

struct snd_soc_platform *imx_ssi_fiq_init(struct platform_device *pdev,
		struct imx_ssi *ssi);
void imx_ssi_fiq_exit(struct platform_device *pdev, struct imx_ssi *ssi);
struct snd_soc_platform *imx_ssi_dma_mx2_init(struct platform_device *pdev,
		struct imx_ssi *ssi);

int snd_imx_pcm_mmap(struct snd_pcm_substream *substream, struct vm_area_struct *vma);
int imx_pcm_new(struct snd_soc_pcm_runtime *rtd);
void imx_pcm_free(struct snd_pcm *pcm);

/*
 * Do not change this as the FIQ handler depends on this size
 */
#define IMX_SSI_DMABUF_SIZE	(64 * 1024)

#endif /* _IMX_SSI_H */