bffbe288634cc28667e516b4127dc786cac46f5f
[linux-2.6.git] / sound / soc / pxa / pxa2xx-ac97.c
1 /*
2  * linux/sound/pxa2xx-ac97.c -- AC97 support for the Intel PXA2xx chip.
3  *
4  * Author:      Nicolas Pitre
5  * Created:     Dec 02, 2004
6  * Copyright:   MontaVista Software Inc.
7  *
8  * This program is free software; you can redistribute it and/or modify
9  * it under the terms of the GNU General Public License version 2 as
10  * published by the Free Software Foundation.
11  */
12
13 #include <linux/init.h>
14 #include <linux/module.h>
15 #include <linux/platform_device.h>
16
17 #include <sound/core.h>
18 #include <sound/ac97_codec.h>
19 #include <sound/soc.h>
20 #include <sound/pxa2xx-lib.h>
21
22 #include <mach/hardware.h>
23 #include <mach/pxa-regs.h>
24
25 #include "pxa2xx-pcm.h"
26 #include "pxa2xx-ac97.h"
27
28 static void pxa2xx_ac97_warm_reset(struct snd_ac97 *ac97)
29 {
30         pxa2xx_ac97_try_warm_reset(ac97);
31
32         pxa2xx_ac97_finish_reset(ac97);
33 }
34
35 static void pxa2xx_ac97_cold_reset(struct snd_ac97 *ac97)
36 {
37         pxa2xx_ac97_try_cold_reset(ac97);
38
39         pxa2xx_ac97_finish_reset(ac97);
40 }
41
42 struct snd_ac97_bus_ops soc_ac97_ops = {
43         .read   = pxa2xx_ac97_read,
44         .write  = pxa2xx_ac97_write,
45         .warm_reset     = pxa2xx_ac97_warm_reset,
46         .reset  = pxa2xx_ac97_cold_reset,
47 };
48
49 static struct pxa2xx_pcm_dma_params pxa2xx_ac97_pcm_stereo_out = {
50         .name                   = "AC97 PCM Stereo out",
51         .dev_addr               = __PREG(PCDR),
52         .drcmr                  = &DRCMR(12),
53         .dcmd                   = DCMD_INCSRCADDR | DCMD_FLOWTRG |
54                                   DCMD_BURST32 | DCMD_WIDTH4,
55 };
56
57 static struct pxa2xx_pcm_dma_params pxa2xx_ac97_pcm_stereo_in = {
58         .name                   = "AC97 PCM Stereo in",
59         .dev_addr               = __PREG(PCDR),
60         .drcmr                  = &DRCMR(11),
61         .dcmd                   = DCMD_INCTRGADDR | DCMD_FLOWSRC |
62                                   DCMD_BURST32 | DCMD_WIDTH4,
63 };
64
65 static struct pxa2xx_pcm_dma_params pxa2xx_ac97_pcm_aux_mono_out = {
66         .name                   = "AC97 Aux PCM (Slot 5) Mono out",
67         .dev_addr               = __PREG(MODR),
68         .drcmr                  = &DRCMR(10),
69         .dcmd                   = DCMD_INCSRCADDR | DCMD_FLOWTRG |
70                                   DCMD_BURST16 | DCMD_WIDTH2,
71 };
72
73 static struct pxa2xx_pcm_dma_params pxa2xx_ac97_pcm_aux_mono_in = {
74         .name                   = "AC97 Aux PCM (Slot 5) Mono in",
75         .dev_addr               = __PREG(MODR),
76         .drcmr                  = &DRCMR(9),
77         .dcmd                   = DCMD_INCTRGADDR | DCMD_FLOWSRC |
78                                   DCMD_BURST16 | DCMD_WIDTH2,
79 };
80
81 static struct pxa2xx_pcm_dma_params pxa2xx_ac97_pcm_mic_mono_in = {
82         .name                   = "AC97 Mic PCM (Slot 6) Mono in",
83         .dev_addr               = __PREG(MCDR),
84         .drcmr                  = &DRCMR(8),
85         .dcmd                   = DCMD_INCTRGADDR | DCMD_FLOWSRC |
86                                   DCMD_BURST16 | DCMD_WIDTH2,
87 };
88
89 #ifdef CONFIG_PM
90 static int pxa2xx_ac97_suspend(struct platform_device *pdev,
91         struct snd_soc_dai *dai)
92 {
93         return pxa2xx_ac97_hw_suspend();
94 }
95
96 static int pxa2xx_ac97_resume(struct platform_device *pdev,
97         struct snd_soc_dai *dai)
98 {
99         return pxa2xx_ac97_hw_resume();
100 }
101
102 #else
103 #define pxa2xx_ac97_suspend     NULL
104 #define pxa2xx_ac97_resume      NULL
105 #endif
106
107 static int pxa2xx_ac97_probe(struct platform_device *pdev,
108                              struct snd_soc_dai *dai)
109 {
110         return pxa2xx_ac97_hw_probe(pdev);
111 }
112
113 static void pxa2xx_ac97_remove(struct platform_device *pdev,
114                                struct snd_soc_dai *dai)
115 {
116         pxa2xx_ac97_hw_remove(pdev);
117 }
118
119 static int pxa2xx_ac97_hw_params(struct snd_pcm_substream *substream,
120                                  struct snd_pcm_hw_params *params,
121                                  struct snd_soc_dai *dai)
122 {
123         struct snd_soc_pcm_runtime *rtd = substream->private_data;
124         struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
125
126         if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
127                 cpu_dai->dma_data = &pxa2xx_ac97_pcm_stereo_out;
128         else
129                 cpu_dai->dma_data = &pxa2xx_ac97_pcm_stereo_in;
130
131         return 0;
132 }
133
134 static int pxa2xx_ac97_hw_aux_params(struct snd_pcm_substream *substream,
135                                      struct snd_pcm_hw_params *params,
136                                      struct snd_soc_dai *dai)
137 {
138         struct snd_soc_pcm_runtime *rtd = substream->private_data;
139         struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
140
141         if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
142                 cpu_dai->dma_data = &pxa2xx_ac97_pcm_aux_mono_out;
143         else
144                 cpu_dai->dma_data = &pxa2xx_ac97_pcm_aux_mono_in;
145
146         return 0;
147 }
148
149 static int pxa2xx_ac97_hw_mic_params(struct snd_pcm_substream *substream,
150                                      struct snd_pcm_hw_params *params,
151                                      struct snd_soc_dai *dai)
152 {
153         struct snd_soc_pcm_runtime *rtd = substream->private_data;
154         struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
155
156         if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
157                 return -ENODEV;
158         else
159                 cpu_dai->dma_data = &pxa2xx_ac97_pcm_mic_mono_in;
160
161         return 0;
162 }
163
164 #define PXA2XX_AC97_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
165                 SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 | SNDRV_PCM_RATE_44100 | \
166                 SNDRV_PCM_RATE_48000)
167
168 /*
169  * There is only 1 physical AC97 interface for pxa2xx, but it
170  * has extra fifo's that can be used for aux DACs and ADCs.
171  */
172 struct snd_soc_dai pxa_ac97_dai[] = {
173 {
174         .name = "pxa2xx-ac97",
175         .id = 0,
176         .ac97_control = 1,
177         .probe = pxa2xx_ac97_probe,
178         .remove = pxa2xx_ac97_remove,
179         .suspend = pxa2xx_ac97_suspend,
180         .resume = pxa2xx_ac97_resume,
181         .playback = {
182                 .stream_name = "AC97 Playback",
183                 .channels_min = 2,
184                 .channels_max = 2,
185                 .rates = PXA2XX_AC97_RATES,
186                 .formats = SNDRV_PCM_FMTBIT_S16_LE,},
187         .capture = {
188                 .stream_name = "AC97 Capture",
189                 .channels_min = 2,
190                 .channels_max = 2,
191                 .rates = PXA2XX_AC97_RATES,
192                 .formats = SNDRV_PCM_FMTBIT_S16_LE,},
193         .ops = {
194                 .hw_params = pxa2xx_ac97_hw_params,},
195 },
196 {
197         .name = "pxa2xx-ac97-aux",
198         .id = 1,
199         .ac97_control = 1,
200         .playback = {
201                 .stream_name = "AC97 Aux Playback",
202                 .channels_min = 1,
203                 .channels_max = 1,
204                 .rates = PXA2XX_AC97_RATES,
205                 .formats = SNDRV_PCM_FMTBIT_S16_LE,},
206         .capture = {
207                 .stream_name = "AC97 Aux Capture",
208                 .channels_min = 1,
209                 .channels_max = 1,
210                 .rates = PXA2XX_AC97_RATES,
211                 .formats = SNDRV_PCM_FMTBIT_S16_LE,},
212         .ops = {
213                 .hw_params = pxa2xx_ac97_hw_aux_params,},
214 },
215 {
216         .name = "pxa2xx-ac97-mic",
217         .id = 2,
218         .ac97_control = 1,
219         .capture = {
220                 .stream_name = "AC97 Mic Capture",
221                 .channels_min = 1,
222                 .channels_max = 1,
223                 .rates = PXA2XX_AC97_RATES,
224                 .formats = SNDRV_PCM_FMTBIT_S16_LE,},
225         .ops = {
226                 .hw_params = pxa2xx_ac97_hw_mic_params,},
227 },
228 };
229
230 EXPORT_SYMBOL_GPL(pxa_ac97_dai);
231 EXPORT_SYMBOL_GPL(soc_ac97_ops);
232
233 MODULE_AUTHOR("Nicolas Pitre");
234 MODULE_DESCRIPTION("AC97 driver for the Intel PXA2xx chip");
235 MODULE_LICENSE("GPL");