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13#include <linux/init.h>
14#include <linux/io.h>
15#include <linux/module.h>
16#include <linux/platform_device.h>
17
18#include <sound/core.h>
19#include <sound/ac97_codec.h>
20#include <sound/soc.h>
21#include <sound/pxa2xx-lib.h>
22
23#include <mach/hardware.h>
24#include <mach/regs-ac97.h>
25#include <mach/dma.h>
26#include <mach/audio.h>
27
28#include "pxa2xx-ac97.h"
29
30static void pxa2xx_ac97_warm_reset(struct snd_ac97 *ac97)
31{
32 pxa2xx_ac97_try_warm_reset(ac97);
33
34 pxa2xx_ac97_finish_reset(ac97);
35}
36
37static void pxa2xx_ac97_cold_reset(struct snd_ac97 *ac97)
38{
39 pxa2xx_ac97_try_cold_reset(ac97);
40
41 pxa2xx_ac97_finish_reset(ac97);
42}
43
44static struct snd_ac97_bus_ops pxa2xx_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
51static struct pxa2xx_pcm_dma_params pxa2xx_ac97_pcm_stereo_out = {
52 .name = "AC97 PCM Stereo out",
53 .dev_addr = __PREG(PCDR),
54 .drcmr = &DRCMR(12),
55 .dcmd = DCMD_INCSRCADDR | DCMD_FLOWTRG |
56 DCMD_BURST32 | DCMD_WIDTH4,
57};
58
59static struct pxa2xx_pcm_dma_params pxa2xx_ac97_pcm_stereo_in = {
60 .name = "AC97 PCM Stereo in",
61 .dev_addr = __PREG(PCDR),
62 .drcmr = &DRCMR(11),
63 .dcmd = DCMD_INCTRGADDR | DCMD_FLOWSRC |
64 DCMD_BURST32 | DCMD_WIDTH4,
65};
66
67static 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),
70 .drcmr = &DRCMR(10),
71 .dcmd = DCMD_INCSRCADDR | DCMD_FLOWTRG |
72 DCMD_BURST16 | DCMD_WIDTH2,
73};
74
75static 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),
78 .drcmr = &DRCMR(9),
79 .dcmd = DCMD_INCTRGADDR | DCMD_FLOWSRC |
80 DCMD_BURST16 | DCMD_WIDTH2,
81};
82
83static 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),
86 .drcmr = &DRCMR(8),
87 .dcmd = DCMD_INCTRGADDR | DCMD_FLOWSRC |
88 DCMD_BURST16 | DCMD_WIDTH2,
89};
90
91#ifdef CONFIG_PM
92static int pxa2xx_ac97_suspend(struct snd_soc_dai *dai)
93{
94 return pxa2xx_ac97_hw_suspend();
95}
96
97static int pxa2xx_ac97_resume(struct snd_soc_dai *dai)
98{
99 return pxa2xx_ac97_hw_resume();
100}
101
102#else
103#define pxa2xx_ac97_suspend NULL
104#define pxa2xx_ac97_resume NULL
105#endif
106
107static int pxa2xx_ac97_probe(struct snd_soc_dai *dai)
108{
109 return pxa2xx_ac97_hw_probe(to_platform_device(dai->dev));
110}
111
112static int pxa2xx_ac97_remove(struct snd_soc_dai *dai)
113{
114 pxa2xx_ac97_hw_remove(to_platform_device(dai->dev));
115 return 0;
116}
117
118static int pxa2xx_ac97_hw_params(struct snd_pcm_substream *substream,
119 struct snd_pcm_hw_params *params,
120 struct snd_soc_dai *cpu_dai)
121{
122 struct pxa2xx_pcm_dma_params *dma_data;
123
124 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
125 dma_data = &pxa2xx_ac97_pcm_stereo_out;
126 else
127 dma_data = &pxa2xx_ac97_pcm_stereo_in;
128
129 snd_soc_dai_set_dma_data(cpu_dai, substream, dma_data);
130
131 return 0;
132}
133
134static int pxa2xx_ac97_hw_aux_params(struct snd_pcm_substream *substream,
135 struct snd_pcm_hw_params *params,
136 struct snd_soc_dai *cpu_dai)
137{
138 struct pxa2xx_pcm_dma_params *dma_data;
139
140 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
141 dma_data = &pxa2xx_ac97_pcm_aux_mono_out;
142 else
143 dma_data = &pxa2xx_ac97_pcm_aux_mono_in;
144
145 snd_soc_dai_set_dma_data(cpu_dai, substream, dma_data);
146
147 return 0;
148}
149
150static int pxa2xx_ac97_hw_mic_params(struct snd_pcm_substream *substream,
151 struct snd_pcm_hw_params *params,
152 struct snd_soc_dai *cpu_dai)
153{
154 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
155 return -ENODEV;
156 else
157 snd_soc_dai_set_dma_data(cpu_dai, substream,
158 &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
167static const struct snd_soc_dai_ops pxa_ac97_hifi_dai_ops = {
168 .hw_params = pxa2xx_ac97_hw_params,
169};
170
171static const struct snd_soc_dai_ops pxa_ac97_aux_dai_ops = {
172 .hw_params = pxa2xx_ac97_hw_aux_params,
173};
174
175static const struct snd_soc_dai_ops pxa_ac97_mic_dai_ops = {
176 .hw_params = pxa2xx_ac97_hw_mic_params,
177};
178
179
180
181
182
183static struct snd_soc_dai_driver pxa_ac97_dai_driver[] = {
184{
185 .name = "pxa2xx-ac97",
186 .ac97_control = 1,
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,
194 .channels_max = 2,
195 .rates = PXA2XX_AC97_RATES,
196 .formats = SNDRV_PCM_FMTBIT_S16_LE,},
197 .capture = {
198 .stream_name = "AC97 Capture",
199 .channels_min = 2,
200 .channels_max = 2,
201 .rates = PXA2XX_AC97_RATES,
202 .formats = SNDRV_PCM_FMTBIT_S16_LE,},
203 .ops = &pxa_ac97_hifi_dai_ops,
204},
205{
206 .name = "pxa2xx-ac97-aux",
207 .ac97_control = 1,
208 .playback = {
209 .stream_name = "AC97 Aux Playback",
210 .channels_min = 1,
211 .channels_max = 1,
212 .rates = PXA2XX_AC97_RATES,
213 .formats = SNDRV_PCM_FMTBIT_S16_LE,},
214 .capture = {
215 .stream_name = "AC97 Aux Capture",
216 .channels_min = 1,
217 .channels_max = 1,
218 .rates = PXA2XX_AC97_RATES,
219 .formats = SNDRV_PCM_FMTBIT_S16_LE,},
220 .ops = &pxa_ac97_aux_dai_ops,
221},
222{
223 .name = "pxa2xx-ac97-mic",
224 .ac97_control = 1,
225 .capture = {
226 .stream_name = "AC97 Mic Capture",
227 .channels_min = 1,
228 .channels_max = 1,
229 .rates = PXA2XX_AC97_RATES,
230 .formats = SNDRV_PCM_FMTBIT_S16_LE,},
231 .ops = &pxa_ac97_mic_dai_ops,
232},
233};
234
235static const struct snd_soc_component_driver pxa_ac97_component = {
236 .name = "pxa-ac97",
237};
238
239static int pxa2xx_ac97_dev_probe(struct platform_device *pdev)
240{
241 int ret;
242
243 if (pdev->id != -1) {
244 dev_err(&pdev->dev, "PXA2xx has only one AC97 port.\n");
245 return -ENXIO;
246 }
247
248 ret = snd_soc_set_ac97_ops(&pxa2xx_ac97_ops);
249 if (ret != 0)
250 return ret;
251
252
253
254
255
256 return snd_soc_register_component(&pdev->dev, &pxa_ac97_component,
257 pxa_ac97_dai_driver, ARRAY_SIZE(pxa_ac97_dai_driver));
258}
259
260static int pxa2xx_ac97_dev_remove(struct platform_device *pdev)
261{
262 snd_soc_unregister_component(&pdev->dev);
263 snd_soc_set_ac97_ops(NULL);
264 return 0;
265}
266
267static struct platform_driver pxa2xx_ac97_driver = {
268 .probe = pxa2xx_ac97_dev_probe,
269 .remove = pxa2xx_ac97_dev_remove,
270 .driver = {
271 .name = "pxa2xx-ac97",
272 .owner = THIS_MODULE,
273 },
274};
275
276module_platform_driver(pxa2xx_ac97_driver);
277
278MODULE_AUTHOR("Nicolas Pitre");
279MODULE_DESCRIPTION("AC97 driver for the Intel PXA2xx chip");
280MODULE_LICENSE("GPL");
281
