Merge branch 'devel' of master.kernel.org:/home/rmk/linux-2.6-arm
[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 #include <mach/regs-ac97.h>
25
26 #include "pxa2xx-pcm.h"
27 #include "pxa2xx-ac97.h"
28
29 static void pxa2xx_ac97_warm_reset(struct snd_ac97 *ac97)
30 {
31         pxa2xx_ac97_try_warm_reset(ac97);
32
33         pxa2xx_ac97_finish_reset(ac97);
34 }
35
36 static void pxa2xx_ac97_cold_reset(struct snd_ac97 *ac97)
37 {
38         pxa2xx_ac97_try_cold_reset(ac97);
39
40         pxa2xx_ac97_finish_reset(ac97);
41 }
42
43 struct snd_ac97_bus_ops soc_ac97_ops = {
44         .read   = pxa2xx_ac97_read,
45         .write  = pxa2xx_ac97_write,
46         .warm_reset     = pxa2xx_ac97_warm_reset,
47         .reset  = pxa2xx_ac97_cold_reset,
48 };
49
50 static struct pxa2xx_pcm_dma_params pxa2xx_ac97_pcm_stereo_out = {
51         .name                   = "AC97 PCM Stereo out",
52         .dev_addr               = __PREG(PCDR),
53         .drcmr                  = &DRCMR(12),
54         .dcmd                   = DCMD_INCSRCADDR | DCMD_FLOWTRG |
55                                   DCMD_BURST32 | DCMD_WIDTH4,
56 };
57
58 static struct pxa2xx_pcm_dma_params pxa2xx_ac97_pcm_stereo_in = {
59         .name                   = "AC97 PCM Stereo in",
60         .dev_addr               = __PREG(PCDR),
61         .drcmr                  = &DRCMR(11),
62         .dcmd                   = DCMD_INCTRGADDR | DCMD_FLOWSRC |
63                                   DCMD_BURST32 | DCMD_WIDTH4,
64 };
65
66 static struct pxa2xx_pcm_dma_params pxa2xx_ac97_pcm_aux_mono_out = {
67         .name                   = "AC97 Aux PCM (Slot 5) Mono out",
68         .dev_addr               = __PREG(MODR),
69         .drcmr                  = &DRCMR(10),
70         .dcmd                   = DCMD_INCSRCADDR | DCMD_FLOWTRG |
71                                   DCMD_BURST16 | DCMD_WIDTH2,
72 };
73
74 static struct pxa2xx_pcm_dma_params pxa2xx_ac97_pcm_aux_mono_in = {
75         .name                   = "AC97 Aux PCM (Slot 5) Mono in",
76         .dev_addr               = __PREG(MODR),
77         .drcmr                  = &DRCMR(9),
78         .dcmd                   = DCMD_INCTRGADDR | DCMD_FLOWSRC |
79                                   DCMD_BURST16 | DCMD_WIDTH2,
80 };
81
82 static struct pxa2xx_pcm_dma_params pxa2xx_ac97_pcm_mic_mono_in = {
83         .name                   = "AC97 Mic PCM (Slot 6) Mono in",
84         .dev_addr               = __PREG(MCDR),
85         .drcmr                  = &DRCMR(8),
86         .dcmd                   = DCMD_INCTRGADDR | DCMD_FLOWSRC |
87                                   DCMD_BURST16 | DCMD_WIDTH2,
88 };
89
90 #ifdef CONFIG_PM
91 static int pxa2xx_ac97_suspend(struct snd_soc_dai *dai)
92 {
93         return pxa2xx_ac97_hw_suspend();
94 }
95
96 static int pxa2xx_ac97_resume(struct snd_soc_dai *dai)
97 {
98         return pxa2xx_ac97_hw_resume();
99 }
100
101 #else
102 #define pxa2xx_ac97_suspend     NULL
103 #define pxa2xx_ac97_resume      NULL
104 #endif
105
106 static int pxa2xx_ac97_probe(struct platform_device *pdev,
107                              struct snd_soc_dai *dai)
108 {
109         return pxa2xx_ac97_hw_probe(pdev);
110 }
111
112 static void pxa2xx_ac97_remove(struct platform_device *pdev,
113                                struct snd_soc_dai *dai)
114 {
115         pxa2xx_ac97_hw_remove(pdev);
116 }
117
118 static int pxa2xx_ac97_hw_params(struct snd_pcm_substream *substream,
119                                  struct snd_pcm_hw_params *params,
120                                  struct snd_soc_dai *dai)
121 {
122         struct snd_soc_pcm_runtime *rtd = substream->private_data;
123         struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
124
125         if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
126                 cpu_dai->dma_data = &pxa2xx_ac97_pcm_stereo_out;
127         else
128                 cpu_dai->dma_data = &pxa2xx_ac97_pcm_stereo_in;
129
130         return 0;
131 }
132
133 static int pxa2xx_ac97_hw_aux_params(struct snd_pcm_substream *substream,
134                                      struct snd_pcm_hw_params *params,
135                                      struct snd_soc_dai *dai)
136 {
137         struct snd_soc_pcm_runtime *rtd = substream->private_data;
138         struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
139
140         if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
141                 cpu_dai->dma_data = &pxa2xx_ac97_pcm_aux_mono_out;
142         else
143                 cpu_dai->dma_data = &pxa2xx_ac97_pcm_aux_mono_in;
144
145         return 0;
146 }
147
148 static int pxa2xx_ac97_hw_mic_params(struct snd_pcm_substream *substream,
149                                      struct snd_pcm_hw_params *params,
150                                      struct snd_soc_dai *dai)
151 {
152         struct snd_soc_pcm_runtime *rtd = substream->private_data;
153         struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
154
155         if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
156                 return -ENODEV;
157         else
158                 cpu_dai->dma_data = &pxa2xx_ac97_pcm_mic_mono_in;
159
160         return 0;
161 }
162
163 #define PXA2XX_AC97_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
164                 SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 | SNDRV_PCM_RATE_44100 | \
165                 SNDRV_PCM_RATE_48000)
166
167 /*
168  * There is only 1 physical AC97 interface for pxa2xx, but it
169  * has extra fifo's that can be used for aux DACs and ADCs.
170  */
171 struct snd_soc_dai pxa_ac97_dai[] = {
172 {
173         .name = "pxa2xx-ac97",
174         .id = 0,
175         .ac97_control = 1,
176         .probe = pxa2xx_ac97_probe,
177         .remove = pxa2xx_ac97_remove,
178         .suspend = pxa2xx_ac97_suspend,
179         .resume = pxa2xx_ac97_resume,
180         .playback = {
181                 .stream_name = "AC97 Playback",
182                 .channels_min = 2,
183                 .channels_max = 2,
184                 .rates = PXA2XX_AC97_RATES,
185                 .formats = SNDRV_PCM_FMTBIT_S16_LE,},
186         .capture = {
187                 .stream_name = "AC97 Capture",
188                 .channels_min = 2,
189                 .channels_max = 2,
190                 .rates = PXA2XX_AC97_RATES,
191                 .formats = SNDRV_PCM_FMTBIT_S16_LE,},
192         .ops = {
193                 .hw_params = pxa2xx_ac97_hw_params,},
194 },
195 {
196         .name = "pxa2xx-ac97-aux",
197         .id = 1,
198         .ac97_control = 1,
199         .playback = {
200                 .stream_name = "AC97 Aux Playback",
201                 .channels_min = 1,
202                 .channels_max = 1,
203                 .rates = PXA2XX_AC97_RATES,
204                 .formats = SNDRV_PCM_FMTBIT_S16_LE,},
205         .capture = {
206                 .stream_name = "AC97 Aux Capture",
207                 .channels_min = 1,
208                 .channels_max = 1,
209                 .rates = PXA2XX_AC97_RATES,
210                 .formats = SNDRV_PCM_FMTBIT_S16_LE,},
211         .ops = {
212                 .hw_params = pxa2xx_ac97_hw_aux_params,},
213 },
214 {
215         .name = "pxa2xx-ac97-mic",
216         .id = 2,
217         .ac97_control = 1,
218         .capture = {
219                 .stream_name = "AC97 Mic Capture",
220                 .channels_min = 1,
221                 .channels_max = 1,
222                 .rates = PXA2XX_AC97_RATES,
223                 .formats = SNDRV_PCM_FMTBIT_S16_LE,},
224         .ops = {
225                 .hw_params = pxa2xx_ac97_hw_mic_params,},
226 },
227 };
228
229 EXPORT_SYMBOL_GPL(pxa_ac97_dai);
230 EXPORT_SYMBOL_GPL(soc_ac97_ops);
231
232 static int __init pxa_ac97_init(void)
233 {
234         return snd_soc_register_dais(pxa_ac97_dai, ARRAY_SIZE(pxa_ac97_dai));
235 }
236 module_init(pxa_ac97_init);
237
238 static void __exit pxa_ac97_exit(void)
239 {
240         snd_soc_unregister_dais(pxa_ac97_dai, ARRAY_SIZE(pxa_ac97_dai));
241 }
242 module_exit(pxa_ac97_exit);
243
244 MODULE_AUTHOR("Nicolas Pitre");
245 MODULE_DESCRIPTION("AC97 driver for the Intel PXA2xx chip");
246 MODULE_LICENSE("GPL");