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/regs-ac97.h>
24 #include <mach/dma.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(to_platform_device(dai->dev));
110 }
111
112 static void pxa2xx_ac97_remove(struct platform_device *pdev,
113 struct snd_soc_dai *dai)
114 {
115 pxa2xx_ac97_hw_remove(to_platform_device(dai->dev));
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 static struct snd_soc_dai_ops pxa_ac97_hifi_dai_ops = {
168 .hw_params = pxa2xx_ac97_hw_params,
169 };
170
171 static struct snd_soc_dai_ops pxa_ac97_aux_dai_ops = {
172 .hw_params = pxa2xx_ac97_hw_aux_params,
173 };
174
175 static struct snd_soc_dai_ops pxa_ac97_mic_dai_ops = {
176 .hw_params = pxa2xx_ac97_hw_mic_params,
177 };
178
179 /*
180 * There is only 1 physical AC97 interface for pxa2xx, but it
181 * has extra fifo's that can be used for aux DACs and ADCs.
182 */
183 struct snd_soc_dai pxa_ac97_dai[] = {
184 {
185 .name = "pxa2xx-ac97",
186 .id = 0,
187 .ac97_control = 1,
188 .probe = pxa2xx_ac97_probe,
189 .remove = pxa2xx_ac97_remove,
190 .suspend = pxa2xx_ac97_suspend,
191 .resume = pxa2xx_ac97_resume,
192 .playback = {
193 .stream_name = "AC97 Playback",
194 .channels_min = 2,
195 .channels_max = 2,
196 .rates = PXA2XX_AC97_RATES,
197 .formats = SNDRV_PCM_FMTBIT_S16_LE,},
198 .capture = {
199 .stream_name = "AC97 Capture",
200 .channels_min = 2,
201 .channels_max = 2,
202 .rates = PXA2XX_AC97_RATES,
203 .formats = SNDRV_PCM_FMTBIT_S16_LE,},
204 .ops = &pxa_ac97_hifi_dai_ops,
205 },
206 {
207 .name = "pxa2xx-ac97-aux",
208 .id = 1,
209 .ac97_control = 1,
210 .playback = {
211 .stream_name = "AC97 Aux Playback",
212 .channels_min = 1,
213 .channels_max = 1,
214 .rates = PXA2XX_AC97_RATES,
215 .formats = SNDRV_PCM_FMTBIT_S16_LE,},
216 .capture = {
217 .stream_name = "AC97 Aux Capture",
218 .channels_min = 1,
219 .channels_max = 1,
220 .rates = PXA2XX_AC97_RATES,
221 .formats = SNDRV_PCM_FMTBIT_S16_LE,},
222 .ops = &pxa_ac97_aux_dai_ops,
223 },
224 {
225 .name = "pxa2xx-ac97-mic",
226 .id = 2,
227 .ac97_control = 1,
228 .capture = {
229 .stream_name = "AC97 Mic Capture",
230 .channels_min = 1,
231 .channels_max = 1,
232 .rates = PXA2XX_AC97_RATES,
233 .formats = SNDRV_PCM_FMTBIT_S16_LE,},
234 .ops = &pxa_ac97_mic_dai_ops,
235 },
236 };
237
238 EXPORT_SYMBOL_GPL(pxa_ac97_dai);
239 EXPORT_SYMBOL_GPL(soc_ac97_ops);
240
241 static int __devinit pxa2xx_ac97_dev_probe(struct platform_device *pdev)
242 {
243 int i;
244
245 for (i = 0; i < ARRAY_SIZE(pxa_ac97_dai); i++)
246 pxa_ac97_dai[i].dev = &pdev->dev;
247
248 /* Punt most of the init to the SoC probe; we may need the machine
249 * driver to do interesting things with the clocking to get us up
250 * and running.
251 */
252 return snd_soc_register_dais(pxa_ac97_dai, ARRAY_SIZE(pxa_ac97_dai));
253 }
254
255 static int __devexit pxa2xx_ac97_dev_remove(struct platform_device *pdev)
256 {
257 snd_soc_unregister_dais(pxa_ac97_dai, ARRAY_SIZE(pxa_ac97_dai));
258
259 return 0;
260 }
261
262 static struct platform_driver pxa2xx_ac97_driver = {
263 .probe = pxa2xx_ac97_dev_probe,
264 .remove = __devexit_p(pxa2xx_ac97_dev_remove),
265 .driver = {
266 .name = "pxa2xx-ac97",
267 .owner = THIS_MODULE,
268 },
269 };
270
271 static int __init pxa_ac97_init(void)
272 {
273 return platform_driver_register(&pxa2xx_ac97_driver);
274 }
275 module_init(pxa_ac97_init);
276
277 static void __exit pxa_ac97_exit(void)
278 {
279 platform_driver_unregister(&pxa2xx_ac97_driver);
280 }
281 module_exit(pxa_ac97_exit);
282
283 MODULE_AUTHOR("Nicolas Pitre");
284 MODULE_DESCRIPTION("AC97 driver for the Intel PXA2xx chip");
285 MODULE_LICENSE("GPL");
286
|
This page was automatically generated by the
LXR engine.
|