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75b41027 LG |
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> | |
75b41027 | 16 | |
75b41027 | 17 | #include <sound/core.h> |
75b41027 | 18 | #include <sound/ac97_codec.h> |
75b41027 | 19 | #include <sound/soc.h> |
9c636342 | 20 | #include <sound/pxa2xx-lib.h> |
75b41027 | 21 | |
a09e64fb | 22 | #include <mach/hardware.h> |
1f017a99 | 23 | #include <mach/regs-ac97.h> |
7ebc8d56 | 24 | #include <mach/dma.h> |
4ac0478f | 25 | #include <mach/audio.h> |
75b41027 LG |
26 | |
27 | #include "pxa2xx-pcm.h" | |
596ce32b | 28 | #include "pxa2xx-ac97.h" |
75b41027 | 29 | |
75b41027 LG |
30 | static void pxa2xx_ac97_warm_reset(struct snd_ac97 *ac97) |
31 | { | |
9c636342 | 32 | pxa2xx_ac97_try_warm_reset(ac97); |
75b41027 | 33 | |
9c636342 | 34 | pxa2xx_ac97_finish_reset(ac97); |
75b41027 LG |
35 | } |
36 | ||
37 | static void pxa2xx_ac97_cold_reset(struct snd_ac97 *ac97) | |
38 | { | |
9c636342 | 39 | pxa2xx_ac97_try_cold_reset(ac97); |
7a22323b | 40 | |
9c636342 | 41 | pxa2xx_ac97_finish_reset(ac97); |
75b41027 LG |
42 | } |
43 | ||
44 | struct snd_ac97_bus_ops soc_ac97_ops = { | |
45 | .read = pxa2xx_ac97_read, | |
46 | .write = pxa2xx_ac97_write, | |
47 | .warm_reset = pxa2xx_ac97_warm_reset, | |
48 | .reset = pxa2xx_ac97_cold_reset, | |
49 | }; | |
50 | ||
51 | static struct pxa2xx_pcm_dma_params pxa2xx_ac97_pcm_stereo_out = { | |
52 | .name = "AC97 PCM Stereo out", | |
53 | .dev_addr = __PREG(PCDR), | |
87f3dd77 | 54 | .drcmr = &DRCMR(12), |
75b41027 LG |
55 | .dcmd = DCMD_INCSRCADDR | DCMD_FLOWTRG | |
56 | DCMD_BURST32 | DCMD_WIDTH4, | |
57 | }; | |
58 | ||
59 | static struct pxa2xx_pcm_dma_params pxa2xx_ac97_pcm_stereo_in = { | |
60 | .name = "AC97 PCM Stereo in", | |
61 | .dev_addr = __PREG(PCDR), | |
87f3dd77 | 62 | .drcmr = &DRCMR(11), |
75b41027 LG |
63 | .dcmd = DCMD_INCTRGADDR | DCMD_FLOWSRC | |
64 | DCMD_BURST32 | DCMD_WIDTH4, | |
65 | }; | |
66 | ||
67 | static struct pxa2xx_pcm_dma_params pxa2xx_ac97_pcm_aux_mono_out = { | |
68 | .name = "AC97 Aux PCM (Slot 5) Mono out", | |
69 | .dev_addr = __PREG(MODR), | |
87f3dd77 | 70 | .drcmr = &DRCMR(10), |
75b41027 LG |
71 | .dcmd = DCMD_INCSRCADDR | DCMD_FLOWTRG | |
72 | DCMD_BURST16 | DCMD_WIDTH2, | |
73 | }; | |
74 | ||
75 | static struct pxa2xx_pcm_dma_params pxa2xx_ac97_pcm_aux_mono_in = { | |
76 | .name = "AC97 Aux PCM (Slot 5) Mono in", | |
77 | .dev_addr = __PREG(MODR), | |
87f3dd77 | 78 | .drcmr = &DRCMR(9), |
75b41027 LG |
79 | .dcmd = DCMD_INCTRGADDR | DCMD_FLOWSRC | |
80 | DCMD_BURST16 | DCMD_WIDTH2, | |
81 | }; | |
82 | ||
83 | static struct pxa2xx_pcm_dma_params pxa2xx_ac97_pcm_mic_mono_in = { | |
84 | .name = "AC97 Mic PCM (Slot 6) Mono in", | |
85 | .dev_addr = __PREG(MCDR), | |
87f3dd77 | 86 | .drcmr = &DRCMR(8), |
75b41027 LG |
87 | .dcmd = DCMD_INCTRGADDR | DCMD_FLOWSRC | |
88 | DCMD_BURST16 | DCMD_WIDTH2, | |
89 | }; | |
90 | ||
91 | #ifdef CONFIG_PM | |
dc7d7b83 | 92 | static int pxa2xx_ac97_suspend(struct snd_soc_dai *dai) |
75b41027 | 93 | { |
9c636342 | 94 | return pxa2xx_ac97_hw_suspend(); |
75b41027 LG |
95 | } |
96 | ||
dc7d7b83 | 97 | static int pxa2xx_ac97_resume(struct snd_soc_dai *dai) |
75b41027 | 98 | { |
9c636342 | 99 | return pxa2xx_ac97_hw_resume(); |
75b41027 LG |
100 | } |
101 | ||
102 | #else | |
103 | #define pxa2xx_ac97_suspend NULL | |
104 | #define pxa2xx_ac97_resume NULL | |
105 | #endif | |
106 | ||
f0fba2ad | 107 | static int pxa2xx_ac97_probe(struct snd_soc_dai *dai) |
75b41027 | 108 | { |
6b849bcf | 109 | return pxa2xx_ac97_hw_probe(to_platform_device(dai->dev)); |
75b41027 LG |
110 | } |
111 | ||
f0fba2ad | 112 | static int pxa2xx_ac97_remove(struct snd_soc_dai *dai) |
75b41027 | 113 | { |
6b849bcf | 114 | pxa2xx_ac97_hw_remove(to_platform_device(dai->dev)); |
f0fba2ad | 115 | return 0; |
75b41027 LG |
116 | } |
117 | ||
118 | static int pxa2xx_ac97_hw_params(struct snd_pcm_substream *substream, | |
dee89c4d | 119 | struct snd_pcm_hw_params *params, |
f0fba2ad | 120 | struct snd_soc_dai *cpu_dai) |
75b41027 | 121 | { |
5f712b2b | 122 | struct pxa2xx_pcm_dma_params *dma_data; |
75b41027 LG |
123 | |
124 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) | |
5f712b2b | 125 | dma_data = &pxa2xx_ac97_pcm_stereo_out; |
75b41027 | 126 | else |
5f712b2b DM |
127 | dma_data = &pxa2xx_ac97_pcm_stereo_in; |
128 | ||
129 | snd_soc_dai_set_dma_data(cpu_dai, substream, dma_data); | |
75b41027 LG |
130 | |
131 | return 0; | |
132 | } | |
133 | ||
134 | static int pxa2xx_ac97_hw_aux_params(struct snd_pcm_substream *substream, | |
dee89c4d | 135 | struct snd_pcm_hw_params *params, |
f0fba2ad | 136 | struct snd_soc_dai *cpu_dai) |
75b41027 | 137 | { |
5f712b2b | 138 | struct pxa2xx_pcm_dma_params *dma_data; |
75b41027 LG |
139 | |
140 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) | |
5f712b2b | 141 | dma_data = &pxa2xx_ac97_pcm_aux_mono_out; |
75b41027 | 142 | else |
5f712b2b DM |
143 | dma_data = &pxa2xx_ac97_pcm_aux_mono_in; |
144 | ||
145 | snd_soc_dai_set_dma_data(cpu_dai, substream, dma_data); | |
75b41027 LG |
146 | |
147 | return 0; | |
148 | } | |
149 | ||
150 | static int pxa2xx_ac97_hw_mic_params(struct snd_pcm_substream *substream, | |
dee89c4d | 151 | struct snd_pcm_hw_params *params, |
f0fba2ad | 152 | struct snd_soc_dai *cpu_dai) |
75b41027 | 153 | { |
75b41027 LG |
154 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) |
155 | return -ENODEV; | |
156 | else | |
5f712b2b DM |
157 | snd_soc_dai_set_dma_data(cpu_dai, substream, |
158 | &pxa2xx_ac97_pcm_mic_mono_in); | |
75b41027 LG |
159 | |
160 | return 0; | |
161 | } | |
162 | ||
596ce32b LG |
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 | ||
852fd9e5 | 167 | static struct snd_soc_dai_ops pxa_ac97_hifi_dai_ops = { |
6335d055 EM |
168 | .hw_params = pxa2xx_ac97_hw_params, |
169 | }; | |
170 | ||
852fd9e5 MB |
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 | ||
75b41027 LG |
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 | */ | |
f0fba2ad | 183 | static struct snd_soc_dai_driver pxa_ac97_dai[] = { |
75b41027 LG |
184 | { |
185 | .name = "pxa2xx-ac97", | |
3ba9e10a | 186 | .ac97_control = 1, |
75b41027 LG |
187 | .probe = pxa2xx_ac97_probe, |
188 | .remove = pxa2xx_ac97_remove, | |
189 | .suspend = pxa2xx_ac97_suspend, | |
190 | .resume = pxa2xx_ac97_resume, | |
191 | .playback = { | |
192 | .stream_name = "AC97 Playback", | |
193 | .channels_min = 2, | |
596ce32b LG |
194 | .channels_max = 2, |
195 | .rates = PXA2XX_AC97_RATES, | |
196 | .formats = SNDRV_PCM_FMTBIT_S16_LE,}, | |
75b41027 LG |
197 | .capture = { |
198 | .stream_name = "AC97 Capture", | |
199 | .channels_min = 2, | |
596ce32b LG |
200 | .channels_max = 2, |
201 | .rates = PXA2XX_AC97_RATES, | |
202 | .formats = SNDRV_PCM_FMTBIT_S16_LE,}, | |
852fd9e5 | 203 | .ops = &pxa_ac97_hifi_dai_ops, |
75b41027 LG |
204 | }, |
205 | { | |
206 | .name = "pxa2xx-ac97-aux", | |
3ba9e10a | 207 | .ac97_control = 1, |
75b41027 LG |
208 | .playback = { |
209 | .stream_name = "AC97 Aux Playback", | |
210 | .channels_min = 1, | |
596ce32b LG |
211 | .channels_max = 1, |
212 | .rates = PXA2XX_AC97_RATES, | |
213 | .formats = SNDRV_PCM_FMTBIT_S16_LE,}, | |
75b41027 LG |
214 | .capture = { |
215 | .stream_name = "AC97 Aux Capture", | |
216 | .channels_min = 1, | |
596ce32b LG |
217 | .channels_max = 1, |
218 | .rates = PXA2XX_AC97_RATES, | |
219 | .formats = SNDRV_PCM_FMTBIT_S16_LE,}, | |
852fd9e5 | 220 | .ops = &pxa_ac97_aux_dai_ops, |
75b41027 LG |
221 | }, |
222 | { | |
223 | .name = "pxa2xx-ac97-mic", | |
3ba9e10a | 224 | .ac97_control = 1, |
75b41027 LG |
225 | .capture = { |
226 | .stream_name = "AC97 Mic Capture", | |
227 | .channels_min = 1, | |
596ce32b LG |
228 | .channels_max = 1, |
229 | .rates = PXA2XX_AC97_RATES, | |
230 | .formats = SNDRV_PCM_FMTBIT_S16_LE,}, | |
852fd9e5 | 231 | .ops = &pxa_ac97_mic_dai_ops, |
596ce32b | 232 | }, |
75b41027 LG |
233 | }; |
234 | ||
75b41027 LG |
235 | EXPORT_SYMBOL_GPL(soc_ac97_ops); |
236 | ||
f0fba2ad | 237 | static __devinit int pxa2xx_ac97_dev_probe(struct platform_device *pdev) |
3f4b783c | 238 | { |
f0fba2ad | 239 | if (pdev->id != -1) { |
4ac0478f MV |
240 | dev_err(&pdev->dev, "PXA2xx has only one AC97 port.\n"); |
241 | return -ENXIO; | |
242 | } | |
243 | ||
6b849bcf MB |
244 | /* Punt most of the init to the SoC probe; we may need the machine |
245 | * driver to do interesting things with the clocking to get us up | |
246 | * and running. | |
247 | */ | |
f0fba2ad LG |
248 | return snd_soc_register_dais(&pdev->dev, pxa_ac97_dai, |
249 | ARRAY_SIZE(pxa_ac97_dai)); | |
3f4b783c | 250 | } |
6b849bcf MB |
251 | |
252 | static int __devexit pxa2xx_ac97_dev_remove(struct platform_device *pdev) | |
253 | { | |
f0fba2ad | 254 | snd_soc_unregister_dais(&pdev->dev, ARRAY_SIZE(pxa_ac97_dai)); |
6b849bcf MB |
255 | return 0; |
256 | } | |
257 | ||
258 | static struct platform_driver pxa2xx_ac97_driver = { | |
259 | .probe = pxa2xx_ac97_dev_probe, | |
260 | .remove = __devexit_p(pxa2xx_ac97_dev_remove), | |
261 | .driver = { | |
262 | .name = "pxa2xx-ac97", | |
263 | .owner = THIS_MODULE, | |
264 | }, | |
265 | }; | |
266 | ||
267 | static int __init pxa_ac97_init(void) | |
268 | { | |
269 | return platform_driver_register(&pxa2xx_ac97_driver); | |
270 | } | |
3f4b783c MB |
271 | module_init(pxa_ac97_init); |
272 | ||
273 | static void __exit pxa_ac97_exit(void) | |
274 | { | |
6b849bcf | 275 | platform_driver_unregister(&pxa2xx_ac97_driver); |
3f4b783c MB |
276 | } |
277 | module_exit(pxa_ac97_exit); | |
278 | ||
75b41027 LG |
279 | MODULE_AUTHOR("Nicolas Pitre"); |
280 | MODULE_DESCRIPTION("AC97 driver for the Intel PXA2xx chip"); | |
281 | MODULE_LICENSE("GPL"); |