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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> | |
75b41027 | 17 | |
75b41027 | 18 | #include <sound/core.h> |
75b41027 | 19 | #include <sound/ac97_codec.h> |
75b41027 | 20 | #include <sound/soc.h> |
9c636342 | 21 | #include <sound/pxa2xx-lib.h> |
75b41027 | 22 | |
a09e64fb | 23 | #include <mach/hardware.h> |
1f017a99 | 24 | #include <mach/regs-ac97.h> |
7ebc8d56 | 25 | #include <mach/dma.h> |
4ac0478f | 26 | #include <mach/audio.h> |
75b41027 | 27 | |
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 | }; | |
8abfc260 | 50 | EXPORT_SYMBOL_GPL(soc_ac97_ops); |
75b41027 LG |
51 | |
52 | static struct pxa2xx_pcm_dma_params pxa2xx_ac97_pcm_stereo_out = { | |
53 | .name = "AC97 PCM Stereo out", | |
54 | .dev_addr = __PREG(PCDR), | |
87f3dd77 | 55 | .drcmr = &DRCMR(12), |
75b41027 LG |
56 | .dcmd = DCMD_INCSRCADDR | DCMD_FLOWTRG | |
57 | DCMD_BURST32 | DCMD_WIDTH4, | |
58 | }; | |
59 | ||
60 | static struct pxa2xx_pcm_dma_params pxa2xx_ac97_pcm_stereo_in = { | |
61 | .name = "AC97 PCM Stereo in", | |
62 | .dev_addr = __PREG(PCDR), | |
87f3dd77 | 63 | .drcmr = &DRCMR(11), |
75b41027 LG |
64 | .dcmd = DCMD_INCTRGADDR | DCMD_FLOWSRC | |
65 | DCMD_BURST32 | DCMD_WIDTH4, | |
66 | }; | |
67 | ||
68 | static struct pxa2xx_pcm_dma_params pxa2xx_ac97_pcm_aux_mono_out = { | |
69 | .name = "AC97 Aux PCM (Slot 5) Mono out", | |
70 | .dev_addr = __PREG(MODR), | |
87f3dd77 | 71 | .drcmr = &DRCMR(10), |
75b41027 LG |
72 | .dcmd = DCMD_INCSRCADDR | DCMD_FLOWTRG | |
73 | DCMD_BURST16 | DCMD_WIDTH2, | |
74 | }; | |
75 | ||
76 | static struct pxa2xx_pcm_dma_params pxa2xx_ac97_pcm_aux_mono_in = { | |
77 | .name = "AC97 Aux PCM (Slot 5) Mono in", | |
78 | .dev_addr = __PREG(MODR), | |
87f3dd77 | 79 | .drcmr = &DRCMR(9), |
75b41027 LG |
80 | .dcmd = DCMD_INCTRGADDR | DCMD_FLOWSRC | |
81 | DCMD_BURST16 | DCMD_WIDTH2, | |
82 | }; | |
83 | ||
84 | static struct pxa2xx_pcm_dma_params pxa2xx_ac97_pcm_mic_mono_in = { | |
85 | .name = "AC97 Mic PCM (Slot 6) Mono in", | |
86 | .dev_addr = __PREG(MCDR), | |
87f3dd77 | 87 | .drcmr = &DRCMR(8), |
75b41027 LG |
88 | .dcmd = DCMD_INCTRGADDR | DCMD_FLOWSRC | |
89 | DCMD_BURST16 | DCMD_WIDTH2, | |
90 | }; | |
91 | ||
92 | #ifdef CONFIG_PM | |
dc7d7b83 | 93 | static int pxa2xx_ac97_suspend(struct snd_soc_dai *dai) |
75b41027 | 94 | { |
9c636342 | 95 | return pxa2xx_ac97_hw_suspend(); |
75b41027 LG |
96 | } |
97 | ||
dc7d7b83 | 98 | static int pxa2xx_ac97_resume(struct snd_soc_dai *dai) |
75b41027 | 99 | { |
9c636342 | 100 | return pxa2xx_ac97_hw_resume(); |
75b41027 LG |
101 | } |
102 | ||
103 | #else | |
104 | #define pxa2xx_ac97_suspend NULL | |
105 | #define pxa2xx_ac97_resume NULL | |
106 | #endif | |
107 | ||
570f6fe1 | 108 | static int pxa2xx_ac97_probe(struct snd_soc_dai *dai) |
75b41027 | 109 | { |
6b849bcf | 110 | return pxa2xx_ac97_hw_probe(to_platform_device(dai->dev)); |
75b41027 LG |
111 | } |
112 | ||
f0fba2ad | 113 | static int pxa2xx_ac97_remove(struct snd_soc_dai *dai) |
75b41027 | 114 | { |
6b849bcf | 115 | pxa2xx_ac97_hw_remove(to_platform_device(dai->dev)); |
f0fba2ad | 116 | return 0; |
75b41027 LG |
117 | } |
118 | ||
119 | static int pxa2xx_ac97_hw_params(struct snd_pcm_substream *substream, | |
dee89c4d | 120 | struct snd_pcm_hw_params *params, |
f0fba2ad | 121 | struct snd_soc_dai *cpu_dai) |
75b41027 | 122 | { |
5f712b2b | 123 | struct pxa2xx_pcm_dma_params *dma_data; |
75b41027 LG |
124 | |
125 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) | |
5f712b2b | 126 | dma_data = &pxa2xx_ac97_pcm_stereo_out; |
75b41027 | 127 | else |
5f712b2b DM |
128 | dma_data = &pxa2xx_ac97_pcm_stereo_in; |
129 | ||
130 | snd_soc_dai_set_dma_data(cpu_dai, substream, dma_data); | |
75b41027 LG |
131 | |
132 | return 0; | |
133 | } | |
134 | ||
135 | static int pxa2xx_ac97_hw_aux_params(struct snd_pcm_substream *substream, | |
dee89c4d | 136 | struct snd_pcm_hw_params *params, |
f0fba2ad | 137 | struct snd_soc_dai *cpu_dai) |
75b41027 | 138 | { |
5f712b2b | 139 | struct pxa2xx_pcm_dma_params *dma_data; |
75b41027 LG |
140 | |
141 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) | |
5f712b2b | 142 | dma_data = &pxa2xx_ac97_pcm_aux_mono_out; |
75b41027 | 143 | else |
5f712b2b DM |
144 | dma_data = &pxa2xx_ac97_pcm_aux_mono_in; |
145 | ||
146 | snd_soc_dai_set_dma_data(cpu_dai, substream, dma_data); | |
75b41027 LG |
147 | |
148 | return 0; | |
149 | } | |
150 | ||
151 | static int pxa2xx_ac97_hw_mic_params(struct snd_pcm_substream *substream, | |
dee89c4d | 152 | struct snd_pcm_hw_params *params, |
f0fba2ad | 153 | struct snd_soc_dai *cpu_dai) |
75b41027 | 154 | { |
75b41027 LG |
155 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) |
156 | return -ENODEV; | |
157 | else | |
5f712b2b DM |
158 | snd_soc_dai_set_dma_data(cpu_dai, substream, |
159 | &pxa2xx_ac97_pcm_mic_mono_in); | |
75b41027 LG |
160 | |
161 | return 0; | |
162 | } | |
163 | ||
596ce32b LG |
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 | ||
85e7652d | 168 | static const struct snd_soc_dai_ops pxa_ac97_hifi_dai_ops = { |
6335d055 EM |
169 | .hw_params = pxa2xx_ac97_hw_params, |
170 | }; | |
171 | ||
85e7652d | 172 | static const struct snd_soc_dai_ops pxa_ac97_aux_dai_ops = { |
852fd9e5 MB |
173 | .hw_params = pxa2xx_ac97_hw_aux_params, |
174 | }; | |
175 | ||
85e7652d | 176 | static const struct snd_soc_dai_ops pxa_ac97_mic_dai_ops = { |
852fd9e5 MB |
177 | .hw_params = pxa2xx_ac97_hw_mic_params, |
178 | }; | |
179 | ||
75b41027 LG |
180 | /* |
181 | * There is only 1 physical AC97 interface for pxa2xx, but it | |
182 | * has extra fifo's that can be used for aux DACs and ADCs. | |
183 | */ | |
a3874196 | 184 | static struct snd_soc_dai_driver pxa_ac97_dai_driver[] = { |
75b41027 LG |
185 | { |
186 | .name = "pxa2xx-ac97", | |
3ba9e10a | 187 | .ac97_control = 1, |
75b41027 LG |
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, | |
596ce32b LG |
195 | .channels_max = 2, |
196 | .rates = PXA2XX_AC97_RATES, | |
197 | .formats = SNDRV_PCM_FMTBIT_S16_LE,}, | |
75b41027 LG |
198 | .capture = { |
199 | .stream_name = "AC97 Capture", | |
200 | .channels_min = 2, | |
596ce32b LG |
201 | .channels_max = 2, |
202 | .rates = PXA2XX_AC97_RATES, | |
203 | .formats = SNDRV_PCM_FMTBIT_S16_LE,}, | |
852fd9e5 | 204 | .ops = &pxa_ac97_hifi_dai_ops, |
75b41027 LG |
205 | }, |
206 | { | |
207 | .name = "pxa2xx-ac97-aux", | |
3ba9e10a | 208 | .ac97_control = 1, |
75b41027 LG |
209 | .playback = { |
210 | .stream_name = "AC97 Aux Playback", | |
211 | .channels_min = 1, | |
596ce32b LG |
212 | .channels_max = 1, |
213 | .rates = PXA2XX_AC97_RATES, | |
214 | .formats = SNDRV_PCM_FMTBIT_S16_LE,}, | |
75b41027 LG |
215 | .capture = { |
216 | .stream_name = "AC97 Aux Capture", | |
217 | .channels_min = 1, | |
596ce32b LG |
218 | .channels_max = 1, |
219 | .rates = PXA2XX_AC97_RATES, | |
220 | .formats = SNDRV_PCM_FMTBIT_S16_LE,}, | |
852fd9e5 | 221 | .ops = &pxa_ac97_aux_dai_ops, |
75b41027 LG |
222 | }, |
223 | { | |
224 | .name = "pxa2xx-ac97-mic", | |
3ba9e10a | 225 | .ac97_control = 1, |
75b41027 LG |
226 | .capture = { |
227 | .stream_name = "AC97 Mic Capture", | |
228 | .channels_min = 1, | |
596ce32b LG |
229 | .channels_max = 1, |
230 | .rates = PXA2XX_AC97_RATES, | |
231 | .formats = SNDRV_PCM_FMTBIT_S16_LE,}, | |
852fd9e5 | 232 | .ops = &pxa_ac97_mic_dai_ops, |
596ce32b | 233 | }, |
75b41027 LG |
234 | }; |
235 | ||
570f6fe1 | 236 | static int pxa2xx_ac97_dev_probe(struct platform_device *pdev) |
3f4b783c | 237 | { |
f0fba2ad | 238 | if (pdev->id != -1) { |
4ac0478f MV |
239 | dev_err(&pdev->dev, "PXA2xx has only one AC97 port.\n"); |
240 | return -ENXIO; | |
241 | } | |
242 | ||
6b849bcf MB |
243 | /* Punt most of the init to the SoC probe; we may need the machine |
244 | * driver to do interesting things with the clocking to get us up | |
245 | * and running. | |
246 | */ | |
a3874196 AL |
247 | return snd_soc_register_dais(&pdev->dev, pxa_ac97_dai_driver, |
248 | ARRAY_SIZE(pxa_ac97_dai_driver)); | |
3f4b783c | 249 | } |
6b849bcf | 250 | |
570f6fe1 | 251 | static int pxa2xx_ac97_dev_remove(struct platform_device *pdev) |
6b849bcf | 252 | { |
a3874196 | 253 | snd_soc_unregister_dais(&pdev->dev, ARRAY_SIZE(pxa_ac97_dai_driver)); |
6b849bcf MB |
254 | return 0; |
255 | } | |
256 | ||
257 | static struct platform_driver pxa2xx_ac97_driver = { | |
258 | .probe = pxa2xx_ac97_dev_probe, | |
570f6fe1 | 259 | .remove = pxa2xx_ac97_dev_remove, |
6b849bcf MB |
260 | .driver = { |
261 | .name = "pxa2xx-ac97", | |
262 | .owner = THIS_MODULE, | |
263 | }, | |
264 | }; | |
265 | ||
2f702a19 | 266 | module_platform_driver(pxa2xx_ac97_driver); |
3f4b783c | 267 | |
75b41027 LG |
268 | MODULE_AUTHOR("Nicolas Pitre"); |
269 | MODULE_DESCRIPTION("AC97 driver for the Intel PXA2xx chip"); | |
270 | MODULE_LICENSE("GPL"); |