Commit | Line | Data |
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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> | |
23019a73 | 14 | #include <linux/io.h> |
75b41027 LG |
15 | #include <linux/module.h> |
16 | #include <linux/platform_device.h> | |
d65a1458 | 17 | #include <linux/dmaengine.h> |
58ceb57e | 18 | #include <linux/dma/pxa-dma.h> |
75b41027 | 19 | |
75b41027 | 20 | #include <sound/core.h> |
75b41027 | 21 | #include <sound/ac97_codec.h> |
75b41027 | 22 | #include <sound/soc.h> |
9c636342 | 23 | #include <sound/pxa2xx-lib.h> |
d65a1458 | 24 | #include <sound/dmaengine_pcm.h> |
75b41027 | 25 | |
a09e64fb | 26 | #include <mach/hardware.h> |
1f017a99 | 27 | #include <mach/regs-ac97.h> |
4ac0478f | 28 | #include <mach/audio.h> |
75b41027 | 29 | |
75b41027 LG |
30 | static void pxa2xx_ac97_warm_reset(struct snd_ac97 *ac97) |
31 | { | |
6f8acad6 | 32 | pxa2xx_ac97_try_warm_reset(); |
75b41027 | 33 | |
6f8acad6 | 34 | pxa2xx_ac97_finish_reset(); |
75b41027 LG |
35 | } |
36 | ||
37 | static void pxa2xx_ac97_cold_reset(struct snd_ac97 *ac97) | |
38 | { | |
6f8acad6 | 39 | pxa2xx_ac97_try_cold_reset(); |
7a22323b | 40 | |
6f8acad6 RJ |
41 | pxa2xx_ac97_finish_reset(); |
42 | } | |
43 | ||
44 | static unsigned short pxa2xx_ac97_legacy_read(struct snd_ac97 *ac97, | |
45 | unsigned short reg) | |
46 | { | |
47 | int ret; | |
48 | ||
49 | ret = pxa2xx_ac97_read(ac97->num, reg); | |
50 | if (ret < 0) | |
51 | return 0; | |
52 | else | |
53 | return (unsigned short)(ret & 0xffff); | |
54 | } | |
55 | ||
56 | static void pxa2xx_ac97_legacy_write(struct snd_ac97 *ac97, | |
57 | unsigned short reg, unsigned short val) | |
58 | { | |
59 | int ret; | |
60 | ||
61 | ret = pxa2xx_ac97_write(ac97->num, reg, val); | |
75b41027 LG |
62 | } |
63 | ||
b047e1cc | 64 | static struct snd_ac97_bus_ops pxa2xx_ac97_ops = { |
6f8acad6 RJ |
65 | .read = pxa2xx_ac97_legacy_read, |
66 | .write = pxa2xx_ac97_legacy_write, | |
75b41027 LG |
67 | .warm_reset = pxa2xx_ac97_warm_reset, |
68 | .reset = pxa2xx_ac97_cold_reset, | |
69 | }; | |
70 | ||
d65a1458 DM |
71 | static struct snd_dmaengine_dai_dma_data pxa2xx_ac97_pcm_stereo_in = { |
72 | .addr = __PREG(PCDR), | |
73 | .addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES, | |
8f54061d | 74 | .chan_name = "pcm_pcm_stereo_in", |
d65a1458 | 75 | .maxburst = 32, |
58ceb57e DM |
76 | }; |
77 | ||
d65a1458 DM |
78 | static struct snd_dmaengine_dai_dma_data pxa2xx_ac97_pcm_stereo_out = { |
79 | .addr = __PREG(PCDR), | |
80 | .addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES, | |
8f54061d | 81 | .chan_name = "pcm_pcm_stereo_out", |
d65a1458 | 82 | .maxburst = 32, |
75b41027 LG |
83 | }; |
84 | ||
d65a1458 DM |
85 | static struct snd_dmaengine_dai_dma_data pxa2xx_ac97_pcm_aux_mono_out = { |
86 | .addr = __PREG(MODR), | |
87 | .addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES, | |
8f54061d | 88 | .chan_name = "pcm_aux_mono_out", |
d65a1458 | 89 | .maxburst = 16, |
75b41027 LG |
90 | }; |
91 | ||
d65a1458 DM |
92 | static struct snd_dmaengine_dai_dma_data pxa2xx_ac97_pcm_aux_mono_in = { |
93 | .addr = __PREG(MODR), | |
94 | .addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES, | |
8f54061d | 95 | .chan_name = "pcm_aux_mono_in", |
d65a1458 | 96 | .maxburst = 16, |
75b41027 LG |
97 | }; |
98 | ||
d65a1458 DM |
99 | static struct snd_dmaengine_dai_dma_data pxa2xx_ac97_pcm_mic_mono_in = { |
100 | .addr = __PREG(MCDR), | |
101 | .addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES, | |
8f54061d | 102 | .chan_name = "pcm_aux_mic_mono", |
d65a1458 | 103 | .maxburst = 16, |
75b41027 LG |
104 | }; |
105 | ||
58ceb57e DM |
106 | static int pxa2xx_ac97_hifi_startup(struct snd_pcm_substream *substream, |
107 | struct snd_soc_dai *cpu_dai) | |
75b41027 | 108 | { |
d65a1458 | 109 | struct snd_dmaengine_dai_dma_data *dma_data; |
75b41027 LG |
110 | |
111 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) | |
5f712b2b | 112 | dma_data = &pxa2xx_ac97_pcm_stereo_out; |
75b41027 | 113 | else |
5f712b2b DM |
114 | dma_data = &pxa2xx_ac97_pcm_stereo_in; |
115 | ||
116 | snd_soc_dai_set_dma_data(cpu_dai, substream, dma_data); | |
75b41027 LG |
117 | |
118 | return 0; | |
119 | } | |
120 | ||
58ceb57e DM |
121 | static int pxa2xx_ac97_aux_startup(struct snd_pcm_substream *substream, |
122 | struct snd_soc_dai *cpu_dai) | |
75b41027 | 123 | { |
d65a1458 | 124 | struct snd_dmaengine_dai_dma_data *dma_data; |
75b41027 LG |
125 | |
126 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) | |
5f712b2b | 127 | dma_data = &pxa2xx_ac97_pcm_aux_mono_out; |
75b41027 | 128 | else |
5f712b2b DM |
129 | dma_data = &pxa2xx_ac97_pcm_aux_mono_in; |
130 | ||
131 | snd_soc_dai_set_dma_data(cpu_dai, substream, dma_data); | |
75b41027 LG |
132 | |
133 | return 0; | |
134 | } | |
135 | ||
58ceb57e DM |
136 | static int pxa2xx_ac97_mic_startup(struct snd_pcm_substream *substream, |
137 | struct snd_soc_dai *cpu_dai) | |
75b41027 | 138 | { |
75b41027 LG |
139 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) |
140 | return -ENODEV; | |
291aaff0 CG |
141 | snd_soc_dai_set_dma_data(cpu_dai, substream, |
142 | &pxa2xx_ac97_pcm_mic_mono_in); | |
75b41027 LG |
143 | |
144 | return 0; | |
145 | } | |
146 | ||
596ce32b LG |
147 | #define PXA2XX_AC97_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\ |
148 | SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 | SNDRV_PCM_RATE_44100 | \ | |
149 | SNDRV_PCM_RATE_48000) | |
150 | ||
85e7652d | 151 | static const struct snd_soc_dai_ops pxa_ac97_hifi_dai_ops = { |
58ceb57e | 152 | .startup = pxa2xx_ac97_hifi_startup, |
6335d055 EM |
153 | }; |
154 | ||
85e7652d | 155 | static const struct snd_soc_dai_ops pxa_ac97_aux_dai_ops = { |
58ceb57e | 156 | .startup = pxa2xx_ac97_aux_startup, |
852fd9e5 MB |
157 | }; |
158 | ||
85e7652d | 159 | static const struct snd_soc_dai_ops pxa_ac97_mic_dai_ops = { |
58ceb57e | 160 | .startup = pxa2xx_ac97_mic_startup, |
852fd9e5 MB |
161 | }; |
162 | ||
75b41027 LG |
163 | /* |
164 | * There is only 1 physical AC97 interface for pxa2xx, but it | |
165 | * has extra fifo's that can be used for aux DACs and ADCs. | |
166 | */ | |
a3874196 | 167 | static struct snd_soc_dai_driver pxa_ac97_dai_driver[] = { |
75b41027 LG |
168 | { |
169 | .name = "pxa2xx-ac97", | |
bc263214 | 170 | .bus_control = true, |
75b41027 LG |
171 | .playback = { |
172 | .stream_name = "AC97 Playback", | |
173 | .channels_min = 2, | |
596ce32b LG |
174 | .channels_max = 2, |
175 | .rates = PXA2XX_AC97_RATES, | |
176 | .formats = SNDRV_PCM_FMTBIT_S16_LE,}, | |
75b41027 LG |
177 | .capture = { |
178 | .stream_name = "AC97 Capture", | |
179 | .channels_min = 2, | |
596ce32b LG |
180 | .channels_max = 2, |
181 | .rates = PXA2XX_AC97_RATES, | |
182 | .formats = SNDRV_PCM_FMTBIT_S16_LE,}, | |
852fd9e5 | 183 | .ops = &pxa_ac97_hifi_dai_ops, |
75b41027 LG |
184 | }, |
185 | { | |
186 | .name = "pxa2xx-ac97-aux", | |
bc263214 | 187 | .bus_control = true, |
75b41027 LG |
188 | .playback = { |
189 | .stream_name = "AC97 Aux Playback", | |
190 | .channels_min = 1, | |
596ce32b LG |
191 | .channels_max = 1, |
192 | .rates = PXA2XX_AC97_RATES, | |
193 | .formats = SNDRV_PCM_FMTBIT_S16_LE,}, | |
75b41027 LG |
194 | .capture = { |
195 | .stream_name = "AC97 Aux Capture", | |
196 | .channels_min = 1, | |
596ce32b LG |
197 | .channels_max = 1, |
198 | .rates = PXA2XX_AC97_RATES, | |
199 | .formats = SNDRV_PCM_FMTBIT_S16_LE,}, | |
852fd9e5 | 200 | .ops = &pxa_ac97_aux_dai_ops, |
75b41027 LG |
201 | }, |
202 | { | |
203 | .name = "pxa2xx-ac97-mic", | |
bc263214 | 204 | .bus_control = true, |
75b41027 LG |
205 | .capture = { |
206 | .stream_name = "AC97 Mic Capture", | |
207 | .channels_min = 1, | |
596ce32b LG |
208 | .channels_max = 1, |
209 | .rates = PXA2XX_AC97_RATES, | |
210 | .formats = SNDRV_PCM_FMTBIT_S16_LE,}, | |
852fd9e5 | 211 | .ops = &pxa_ac97_mic_dai_ops, |
596ce32b | 212 | }, |
75b41027 LG |
213 | }; |
214 | ||
ad53232c KM |
215 | static const struct snd_soc_component_driver pxa_ac97_component = { |
216 | .name = "pxa-ac97", | |
d767d3ce DM |
217 | .ops = &pxa2xx_pcm_ops, |
218 | .pcm_new = pxa2xx_soc_pcm_new, | |
219 | .pcm_free = pxa2xx_pcm_free_dma_buffers, | |
ad53232c KM |
220 | }; |
221 | ||
a4519526 RJ |
222 | #ifdef CONFIG_OF |
223 | static const struct of_device_id pxa2xx_ac97_dt_ids[] = { | |
224 | { .compatible = "marvell,pxa250-ac97", }, | |
225 | { .compatible = "marvell,pxa270-ac97", }, | |
226 | { .compatible = "marvell,pxa300-ac97", }, | |
227 | { } | |
228 | }; | |
229 | MODULE_DEVICE_TABLE(of, pxa2xx_ac97_dt_ids); | |
230 | ||
231 | #endif | |
232 | ||
570f6fe1 | 233 | static int pxa2xx_ac97_dev_probe(struct platform_device *pdev) |
3f4b783c | 234 | { |
7685e016 KH |
235 | int ret; |
236 | ||
f0fba2ad | 237 | if (pdev->id != -1) { |
4ac0478f MV |
238 | dev_err(&pdev->dev, "PXA2xx has only one AC97 port.\n"); |
239 | return -ENXIO; | |
240 | } | |
241 | ||
f62aa9b6 DES |
242 | ret = pxa2xx_ac97_hw_probe(pdev); |
243 | if (ret) { | |
244 | dev_err(&pdev->dev, "PXA2xx AC97 hw probe error (%d)\n", ret); | |
245 | return ret; | |
246 | } | |
247 | ||
b047e1cc MB |
248 | ret = snd_soc_set_ac97_ops(&pxa2xx_ac97_ops); |
249 | if (ret != 0) | |
250 | return ret; | |
251 | ||
6b849bcf MB |
252 | /* Punt most of the init to the SoC probe; we may need the machine |
253 | * driver to do interesting things with the clocking to get us up | |
254 | * and running. | |
255 | */ | |
ad53232c KM |
256 | return snd_soc_register_component(&pdev->dev, &pxa_ac97_component, |
257 | pxa_ac97_dai_driver, ARRAY_SIZE(pxa_ac97_dai_driver)); | |
3f4b783c | 258 | } |
6b849bcf | 259 | |
570f6fe1 | 260 | static int pxa2xx_ac97_dev_remove(struct platform_device *pdev) |
6b849bcf | 261 | { |
ad53232c | 262 | snd_soc_unregister_component(&pdev->dev); |
b047e1cc | 263 | snd_soc_set_ac97_ops(NULL); |
f62aa9b6 | 264 | pxa2xx_ac97_hw_remove(pdev); |
6b849bcf MB |
265 | return 0; |
266 | } | |
267 | ||
f62aa9b6 DES |
268 | #ifdef CONFIG_PM_SLEEP |
269 | static int pxa2xx_ac97_dev_suspend(struct device *dev) | |
270 | { | |
271 | return pxa2xx_ac97_hw_suspend(); | |
272 | } | |
273 | ||
274 | static int pxa2xx_ac97_dev_resume(struct device *dev) | |
275 | { | |
276 | return pxa2xx_ac97_hw_resume(); | |
277 | } | |
278 | ||
279 | static SIMPLE_DEV_PM_OPS(pxa2xx_ac97_pm_ops, | |
280 | pxa2xx_ac97_dev_suspend, pxa2xx_ac97_dev_resume); | |
281 | #endif | |
282 | ||
6b849bcf MB |
283 | static struct platform_driver pxa2xx_ac97_driver = { |
284 | .probe = pxa2xx_ac97_dev_probe, | |
570f6fe1 | 285 | .remove = pxa2xx_ac97_dev_remove, |
6b849bcf MB |
286 | .driver = { |
287 | .name = "pxa2xx-ac97", | |
f62aa9b6 DES |
288 | #ifdef CONFIG_PM_SLEEP |
289 | .pm = &pxa2xx_ac97_pm_ops, | |
290 | #endif | |
a4519526 | 291 | .of_match_table = of_match_ptr(pxa2xx_ac97_dt_ids), |
6b849bcf MB |
292 | }, |
293 | }; | |
294 | ||
2f702a19 | 295 | module_platform_driver(pxa2xx_ac97_driver); |
3f4b783c | 296 | |
75b41027 LG |
297 | MODULE_AUTHOR("Nicolas Pitre"); |
298 | MODULE_DESCRIPTION("AC97 driver for the Intel PXA2xx chip"); | |
299 | MODULE_LICENSE("GPL"); | |
e5b7d71a | 300 | MODULE_ALIAS("platform:pxa2xx-ac97"); |