Commit | Line | Data |
---|---|---|
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> |
75b41027 | 18 | |
75b41027 | 19 | #include <sound/core.h> |
75b41027 | 20 | #include <sound/ac97_codec.h> |
75b41027 | 21 | #include <sound/soc.h> |
9c636342 | 22 | #include <sound/pxa2xx-lib.h> |
d65a1458 | 23 | #include <sound/dmaengine_pcm.h> |
75b41027 | 24 | |
a09e64fb | 25 | #include <mach/hardware.h> |
1f017a99 | 26 | #include <mach/regs-ac97.h> |
4ac0478f | 27 | #include <mach/audio.h> |
75b41027 | 28 | |
596ce32b | 29 | #include "pxa2xx-ac97.h" |
75b41027 | 30 | |
75b41027 LG |
31 | static void pxa2xx_ac97_warm_reset(struct snd_ac97 *ac97) |
32 | { | |
9c636342 | 33 | pxa2xx_ac97_try_warm_reset(ac97); |
75b41027 | 34 | |
9c636342 | 35 | pxa2xx_ac97_finish_reset(ac97); |
75b41027 LG |
36 | } |
37 | ||
38 | static void pxa2xx_ac97_cold_reset(struct snd_ac97 *ac97) | |
39 | { | |
9c636342 | 40 | pxa2xx_ac97_try_cold_reset(ac97); |
7a22323b | 41 | |
9c636342 | 42 | pxa2xx_ac97_finish_reset(ac97); |
75b41027 LG |
43 | } |
44 | ||
b047e1cc | 45 | static struct snd_ac97_bus_ops pxa2xx_ac97_ops = { |
75b41027 LG |
46 | .read = pxa2xx_ac97_read, |
47 | .write = pxa2xx_ac97_write, | |
48 | .warm_reset = pxa2xx_ac97_warm_reset, | |
49 | .reset = pxa2xx_ac97_cold_reset, | |
50 | }; | |
51 | ||
8811191f | 52 | static unsigned long pxa2xx_ac97_pcm_stereo_in_req = 11; |
d65a1458 DM |
53 | static struct snd_dmaengine_dai_dma_data pxa2xx_ac97_pcm_stereo_in = { |
54 | .addr = __PREG(PCDR), | |
55 | .addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES, | |
56 | .maxburst = 32, | |
57 | .filter_data = &pxa2xx_ac97_pcm_stereo_in_req, | |
75b41027 LG |
58 | }; |
59 | ||
8811191f | 60 | static unsigned long pxa2xx_ac97_pcm_stereo_out_req = 12; |
d65a1458 DM |
61 | static struct snd_dmaengine_dai_dma_data pxa2xx_ac97_pcm_stereo_out = { |
62 | .addr = __PREG(PCDR), | |
63 | .addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES, | |
64 | .maxburst = 32, | |
65 | .filter_data = &pxa2xx_ac97_pcm_stereo_out_req, | |
75b41027 LG |
66 | }; |
67 | ||
d65a1458 DM |
68 | static unsigned long pxa2xx_ac97_pcm_aux_mono_out_req = 10; |
69 | static struct snd_dmaengine_dai_dma_data pxa2xx_ac97_pcm_aux_mono_out = { | |
70 | .addr = __PREG(MODR), | |
71 | .addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES, | |
72 | .maxburst = 16, | |
73 | .filter_data = &pxa2xx_ac97_pcm_aux_mono_out_req, | |
75b41027 LG |
74 | }; |
75 | ||
d65a1458 DM |
76 | static unsigned long pxa2xx_ac97_pcm_aux_mono_in_req = 9; |
77 | static struct snd_dmaengine_dai_dma_data pxa2xx_ac97_pcm_aux_mono_in = { | |
78 | .addr = __PREG(MODR), | |
79 | .addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES, | |
80 | .maxburst = 16, | |
81 | .filter_data = &pxa2xx_ac97_pcm_aux_mono_in_req, | |
75b41027 LG |
82 | }; |
83 | ||
d65a1458 DM |
84 | static unsigned long pxa2xx_ac97_pcm_aux_mic_mono_req = 8; |
85 | static struct snd_dmaengine_dai_dma_data pxa2xx_ac97_pcm_mic_mono_in = { | |
86 | .addr = __PREG(MCDR), | |
87 | .addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES, | |
88 | .maxburst = 16, | |
89 | .filter_data = &pxa2xx_ac97_pcm_aux_mic_mono_req, | |
75b41027 LG |
90 | }; |
91 | ||
75b41027 | 92 | static int pxa2xx_ac97_hw_params(struct snd_pcm_substream *substream, |
dee89c4d | 93 | struct snd_pcm_hw_params *params, |
f0fba2ad | 94 | struct snd_soc_dai *cpu_dai) |
75b41027 | 95 | { |
d65a1458 | 96 | struct snd_dmaengine_dai_dma_data *dma_data; |
75b41027 LG |
97 | |
98 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) | |
5f712b2b | 99 | dma_data = &pxa2xx_ac97_pcm_stereo_out; |
75b41027 | 100 | else |
5f712b2b DM |
101 | dma_data = &pxa2xx_ac97_pcm_stereo_in; |
102 | ||
103 | snd_soc_dai_set_dma_data(cpu_dai, substream, dma_data); | |
75b41027 LG |
104 | |
105 | return 0; | |
106 | } | |
107 | ||
108 | static int pxa2xx_ac97_hw_aux_params(struct snd_pcm_substream *substream, | |
dee89c4d | 109 | struct snd_pcm_hw_params *params, |
f0fba2ad | 110 | struct snd_soc_dai *cpu_dai) |
75b41027 | 111 | { |
d65a1458 | 112 | struct snd_dmaengine_dai_dma_data *dma_data; |
75b41027 LG |
113 | |
114 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) | |
5f712b2b | 115 | dma_data = &pxa2xx_ac97_pcm_aux_mono_out; |
75b41027 | 116 | else |
5f712b2b DM |
117 | dma_data = &pxa2xx_ac97_pcm_aux_mono_in; |
118 | ||
119 | snd_soc_dai_set_dma_data(cpu_dai, substream, dma_data); | |
75b41027 LG |
120 | |
121 | return 0; | |
122 | } | |
123 | ||
124 | static int pxa2xx_ac97_hw_mic_params(struct snd_pcm_substream *substream, | |
dee89c4d | 125 | struct snd_pcm_hw_params *params, |
f0fba2ad | 126 | struct snd_soc_dai *cpu_dai) |
75b41027 | 127 | { |
75b41027 LG |
128 | if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK) |
129 | return -ENODEV; | |
130 | else | |
5f712b2b DM |
131 | snd_soc_dai_set_dma_data(cpu_dai, substream, |
132 | &pxa2xx_ac97_pcm_mic_mono_in); | |
75b41027 LG |
133 | |
134 | return 0; | |
135 | } | |
136 | ||
596ce32b LG |
137 | #define PXA2XX_AC97_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\ |
138 | SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 | SNDRV_PCM_RATE_44100 | \ | |
139 | SNDRV_PCM_RATE_48000) | |
140 | ||
85e7652d | 141 | static const struct snd_soc_dai_ops pxa_ac97_hifi_dai_ops = { |
6335d055 EM |
142 | .hw_params = pxa2xx_ac97_hw_params, |
143 | }; | |
144 | ||
85e7652d | 145 | static const struct snd_soc_dai_ops pxa_ac97_aux_dai_ops = { |
852fd9e5 MB |
146 | .hw_params = pxa2xx_ac97_hw_aux_params, |
147 | }; | |
148 | ||
85e7652d | 149 | static const struct snd_soc_dai_ops pxa_ac97_mic_dai_ops = { |
852fd9e5 MB |
150 | .hw_params = pxa2xx_ac97_hw_mic_params, |
151 | }; | |
152 | ||
75b41027 LG |
153 | /* |
154 | * There is only 1 physical AC97 interface for pxa2xx, but it | |
155 | * has extra fifo's that can be used for aux DACs and ADCs. | |
156 | */ | |
a3874196 | 157 | static struct snd_soc_dai_driver pxa_ac97_dai_driver[] = { |
75b41027 LG |
158 | { |
159 | .name = "pxa2xx-ac97", | |
bc263214 | 160 | .bus_control = true, |
75b41027 LG |
161 | .playback = { |
162 | .stream_name = "AC97 Playback", | |
163 | .channels_min = 2, | |
596ce32b LG |
164 | .channels_max = 2, |
165 | .rates = PXA2XX_AC97_RATES, | |
166 | .formats = SNDRV_PCM_FMTBIT_S16_LE,}, | |
75b41027 LG |
167 | .capture = { |
168 | .stream_name = "AC97 Capture", | |
169 | .channels_min = 2, | |
596ce32b LG |
170 | .channels_max = 2, |
171 | .rates = PXA2XX_AC97_RATES, | |
172 | .formats = SNDRV_PCM_FMTBIT_S16_LE,}, | |
852fd9e5 | 173 | .ops = &pxa_ac97_hifi_dai_ops, |
75b41027 LG |
174 | }, |
175 | { | |
176 | .name = "pxa2xx-ac97-aux", | |
bc263214 | 177 | .bus_control = true, |
75b41027 LG |
178 | .playback = { |
179 | .stream_name = "AC97 Aux Playback", | |
180 | .channels_min = 1, | |
596ce32b LG |
181 | .channels_max = 1, |
182 | .rates = PXA2XX_AC97_RATES, | |
183 | .formats = SNDRV_PCM_FMTBIT_S16_LE,}, | |
75b41027 LG |
184 | .capture = { |
185 | .stream_name = "AC97 Aux Capture", | |
186 | .channels_min = 1, | |
596ce32b LG |
187 | .channels_max = 1, |
188 | .rates = PXA2XX_AC97_RATES, | |
189 | .formats = SNDRV_PCM_FMTBIT_S16_LE,}, | |
852fd9e5 | 190 | .ops = &pxa_ac97_aux_dai_ops, |
75b41027 LG |
191 | }, |
192 | { | |
193 | .name = "pxa2xx-ac97-mic", | |
bc263214 | 194 | .bus_control = true, |
75b41027 LG |
195 | .capture = { |
196 | .stream_name = "AC97 Mic Capture", | |
197 | .channels_min = 1, | |
596ce32b LG |
198 | .channels_max = 1, |
199 | .rates = PXA2XX_AC97_RATES, | |
200 | .formats = SNDRV_PCM_FMTBIT_S16_LE,}, | |
852fd9e5 | 201 | .ops = &pxa_ac97_mic_dai_ops, |
596ce32b | 202 | }, |
75b41027 LG |
203 | }; |
204 | ||
ad53232c KM |
205 | static const struct snd_soc_component_driver pxa_ac97_component = { |
206 | .name = "pxa-ac97", | |
207 | }; | |
208 | ||
570f6fe1 | 209 | static int pxa2xx_ac97_dev_probe(struct platform_device *pdev) |
3f4b783c | 210 | { |
7685e016 KH |
211 | int ret; |
212 | ||
f0fba2ad | 213 | if (pdev->id != -1) { |
4ac0478f MV |
214 | dev_err(&pdev->dev, "PXA2xx has only one AC97 port.\n"); |
215 | return -ENXIO; | |
216 | } | |
217 | ||
f62aa9b6 DES |
218 | ret = pxa2xx_ac97_hw_probe(pdev); |
219 | if (ret) { | |
220 | dev_err(&pdev->dev, "PXA2xx AC97 hw probe error (%d)\n", ret); | |
221 | return ret; | |
222 | } | |
223 | ||
b047e1cc MB |
224 | ret = snd_soc_set_ac97_ops(&pxa2xx_ac97_ops); |
225 | if (ret != 0) | |
226 | return ret; | |
227 | ||
6b849bcf MB |
228 | /* Punt most of the init to the SoC probe; we may need the machine |
229 | * driver to do interesting things with the clocking to get us up | |
230 | * and running. | |
231 | */ | |
ad53232c KM |
232 | return snd_soc_register_component(&pdev->dev, &pxa_ac97_component, |
233 | pxa_ac97_dai_driver, ARRAY_SIZE(pxa_ac97_dai_driver)); | |
3f4b783c | 234 | } |
6b849bcf | 235 | |
570f6fe1 | 236 | static int pxa2xx_ac97_dev_remove(struct platform_device *pdev) |
6b849bcf | 237 | { |
ad53232c | 238 | snd_soc_unregister_component(&pdev->dev); |
b047e1cc | 239 | snd_soc_set_ac97_ops(NULL); |
f62aa9b6 | 240 | pxa2xx_ac97_hw_remove(pdev); |
6b849bcf MB |
241 | return 0; |
242 | } | |
243 | ||
f62aa9b6 DES |
244 | #ifdef CONFIG_PM_SLEEP |
245 | static int pxa2xx_ac97_dev_suspend(struct device *dev) | |
246 | { | |
247 | return pxa2xx_ac97_hw_suspend(); | |
248 | } | |
249 | ||
250 | static int pxa2xx_ac97_dev_resume(struct device *dev) | |
251 | { | |
252 | return pxa2xx_ac97_hw_resume(); | |
253 | } | |
254 | ||
255 | static SIMPLE_DEV_PM_OPS(pxa2xx_ac97_pm_ops, | |
256 | pxa2xx_ac97_dev_suspend, pxa2xx_ac97_dev_resume); | |
257 | #endif | |
258 | ||
6b849bcf MB |
259 | static struct platform_driver pxa2xx_ac97_driver = { |
260 | .probe = pxa2xx_ac97_dev_probe, | |
570f6fe1 | 261 | .remove = pxa2xx_ac97_dev_remove, |
6b849bcf MB |
262 | .driver = { |
263 | .name = "pxa2xx-ac97", | |
f62aa9b6 DES |
264 | #ifdef CONFIG_PM_SLEEP |
265 | .pm = &pxa2xx_ac97_pm_ops, | |
266 | #endif | |
6b849bcf MB |
267 | }, |
268 | }; | |
269 | ||
2f702a19 | 270 | module_platform_driver(pxa2xx_ac97_driver); |
3f4b783c | 271 | |
75b41027 LG |
272 | MODULE_AUTHOR("Nicolas Pitre"); |
273 | MODULE_DESCRIPTION("AC97 driver for the Intel PXA2xx chip"); | |
274 | MODULE_LICENSE("GPL"); |