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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#include <linux/dmaengine.h>
18#include <linux/dma/pxa-dma.h>
19
20#include <sound/ac97/controller.h>
21#include <sound/core.h>
22#include <sound/ac97_codec.h>
23#include <sound/soc.h>
24#include <sound/pxa2xx-lib.h>
25#include <sound/dmaengine_pcm.h>
26
27#include <mach/hardware.h>
28#include <mach/regs-ac97.h>
29#include <mach/audio.h>
30
31static void pxa2xx_ac97_warm_reset(struct ac97_controller *adrv)
32{
33 pxa2xx_ac97_try_warm_reset();
34
35 pxa2xx_ac97_finish_reset();
36}
37
38static void pxa2xx_ac97_cold_reset(struct ac97_controller *adrv)
39{
40 pxa2xx_ac97_try_cold_reset();
41
42 pxa2xx_ac97_finish_reset();
43}
44
45static int pxa2xx_ac97_read_actrl(struct ac97_controller *adrv, int slot,
46 unsigned short reg)
47{
48 return pxa2xx_ac97_read(slot, reg);
49}
50
51static int pxa2xx_ac97_write_actrl(struct ac97_controller *adrv, int slot,
52 unsigned short reg, unsigned short val)
53{
54 return pxa2xx_ac97_write(slot, reg, val);
55}
56
57static struct ac97_controller_ops pxa2xx_ac97_ops = {
58 .read = pxa2xx_ac97_read_actrl,
59 .write = pxa2xx_ac97_write_actrl,
60 .warm_reset = pxa2xx_ac97_warm_reset,
61 .reset = pxa2xx_ac97_cold_reset,
62};
63
64static struct snd_dmaengine_dai_dma_data pxa2xx_ac97_pcm_stereo_in = {
65 .addr = __PREG(PCDR),
66 .addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES,
67 .chan_name = "pcm_pcm_stereo_in",
68 .maxburst = 32,
69};
70
71static struct snd_dmaengine_dai_dma_data pxa2xx_ac97_pcm_stereo_out = {
72 .addr = __PREG(PCDR),
73 .addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES,
74 .chan_name = "pcm_pcm_stereo_out",
75 .maxburst = 32,
76};
77
78static struct snd_dmaengine_dai_dma_data pxa2xx_ac97_pcm_aux_mono_out = {
79 .addr = __PREG(MODR),
80 .addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES,
81 .chan_name = "pcm_aux_mono_out",
82 .maxburst = 16,
83};
84
85static struct snd_dmaengine_dai_dma_data pxa2xx_ac97_pcm_aux_mono_in = {
86 .addr = __PREG(MODR),
87 .addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES,
88 .chan_name = "pcm_aux_mono_in",
89 .maxburst = 16,
90};
91
92static struct snd_dmaengine_dai_dma_data pxa2xx_ac97_pcm_mic_mono_in = {
93 .addr = __PREG(MCDR),
94 .addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES,
95 .chan_name = "pcm_aux_mic_mono",
96 .maxburst = 16,
97};
98
99static int pxa2xx_ac97_hifi_startup(struct snd_pcm_substream *substream,
100 struct snd_soc_dai *cpu_dai)
101{
102 struct snd_dmaengine_dai_dma_data *dma_data;
103
104 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
105 dma_data = &pxa2xx_ac97_pcm_stereo_out;
106 else
107 dma_data = &pxa2xx_ac97_pcm_stereo_in;
108
109 snd_soc_dai_set_dma_data(cpu_dai, substream, dma_data);
110
111 return 0;
112}
113
114static int pxa2xx_ac97_aux_startup(struct snd_pcm_substream *substream,
115 struct snd_soc_dai *cpu_dai)
116{
117 struct snd_dmaengine_dai_dma_data *dma_data;
118
119 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
120 dma_data = &pxa2xx_ac97_pcm_aux_mono_out;
121 else
122 dma_data = &pxa2xx_ac97_pcm_aux_mono_in;
123
124 snd_soc_dai_set_dma_data(cpu_dai, substream, dma_data);
125
126 return 0;
127}
128
129static int pxa2xx_ac97_mic_startup(struct snd_pcm_substream *substream,
130 struct snd_soc_dai *cpu_dai)
131{
132 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
133 return -ENODEV;
134 snd_soc_dai_set_dma_data(cpu_dai, substream,
135 &pxa2xx_ac97_pcm_mic_mono_in);
136
137 return 0;
138}
139
140#define PXA2XX_AC97_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 |\
141 SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 | SNDRV_PCM_RATE_44100 | \
142 SNDRV_PCM_RATE_48000)
143
144static const struct snd_soc_dai_ops pxa_ac97_hifi_dai_ops = {
145 .startup = pxa2xx_ac97_hifi_startup,
146};
147
148static const struct snd_soc_dai_ops pxa_ac97_aux_dai_ops = {
149 .startup = pxa2xx_ac97_aux_startup,
150};
151
152static const struct snd_soc_dai_ops pxa_ac97_mic_dai_ops = {
153 .startup = pxa2xx_ac97_mic_startup,
154};
155
156
157
158
159
160static struct snd_soc_dai_driver pxa_ac97_dai_driver[] = {
161{
162 .name = "pxa2xx-ac97",
163 .bus_control = true,
164 .playback = {
165 .stream_name = "AC97 Playback",
166 .channels_min = 2,
167 .channels_max = 2,
168 .rates = PXA2XX_AC97_RATES,
169 .formats = SNDRV_PCM_FMTBIT_S16_LE,},
170 .capture = {
171 .stream_name = "AC97 Capture",
172 .channels_min = 2,
173 .channels_max = 2,
174 .rates = PXA2XX_AC97_RATES,
175 .formats = SNDRV_PCM_FMTBIT_S16_LE,},
176 .ops = &pxa_ac97_hifi_dai_ops,
177},
178{
179 .name = "pxa2xx-ac97-aux",
180 .bus_control = true,
181 .playback = {
182 .stream_name = "AC97 Aux Playback",
183 .channels_min = 1,
184 .channels_max = 1,
185 .rates = PXA2XX_AC97_RATES,
186 .formats = SNDRV_PCM_FMTBIT_S16_LE,},
187 .capture = {
188 .stream_name = "AC97 Aux Capture",
189 .channels_min = 1,
190 .channels_max = 1,
191 .rates = PXA2XX_AC97_RATES,
192 .formats = SNDRV_PCM_FMTBIT_S16_LE,},
193 .ops = &pxa_ac97_aux_dai_ops,
194},
195{
196 .name = "pxa2xx-ac97-mic",
197 .bus_control = true,
198 .capture = {
199 .stream_name = "AC97 Mic Capture",
200 .channels_min = 1,
201 .channels_max = 1,
202 .rates = PXA2XX_AC97_RATES,
203 .formats = SNDRV_PCM_FMTBIT_S16_LE,},
204 .ops = &pxa_ac97_mic_dai_ops,
205},
206};
207
208static const struct snd_soc_component_driver pxa_ac97_component = {
209 .name = "pxa-ac97",
210 .ops = &pxa2xx_pcm_ops,
211 .pcm_new = pxa2xx_soc_pcm_new,
212 .pcm_free = pxa2xx_pcm_free_dma_buffers,
213};
214
215#ifdef CONFIG_OF
216static const struct of_device_id pxa2xx_ac97_dt_ids[] = {
217 { .compatible = "marvell,pxa250-ac97", },
218 { .compatible = "marvell,pxa270-ac97", },
219 { .compatible = "marvell,pxa300-ac97", },
220 { }
221};
222MODULE_DEVICE_TABLE(of, pxa2xx_ac97_dt_ids);
223
224#endif
225
226static int pxa2xx_ac97_dev_probe(struct platform_device *pdev)
227{
228 int ret;
229 struct ac97_controller *ctrl;
230 pxa2xx_audio_ops_t *pdata = pdev->dev.platform_data;
231 void **codecs_pdata;
232
233 if (pdev->id != -1) {
234 dev_err(&pdev->dev, "PXA2xx has only one AC97 port.\n");
235 return -ENXIO;
236 }
237
238 ret = pxa2xx_ac97_hw_probe(pdev);
239 if (ret) {
240 dev_err(&pdev->dev, "PXA2xx AC97 hw probe error (%d)\n", ret);
241 return ret;
242 }
243
244 codecs_pdata = pdata ? pdata->codec_pdata : NULL;
245 ctrl = snd_ac97_controller_register(&pxa2xx_ac97_ops, &pdev->dev,
246 AC97_SLOTS_AVAILABLE_ALL,
247 codecs_pdata);
248 if (IS_ERR(ctrl))
249 return PTR_ERR(ctrl);
250
251 platform_set_drvdata(pdev, ctrl);
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 struct ac97_controller *ctrl = platform_get_drvdata(pdev);
263
264 snd_soc_unregister_component(&pdev->dev);
265 snd_ac97_controller_unregister(ctrl);
266 pxa2xx_ac97_hw_remove(pdev);
267 return 0;
268}
269
270#ifdef CONFIG_PM_SLEEP
271static int pxa2xx_ac97_dev_suspend(struct device *dev)
272{
273 return pxa2xx_ac97_hw_suspend();
274}
275
276static int pxa2xx_ac97_dev_resume(struct device *dev)
277{
278 return pxa2xx_ac97_hw_resume();
279}
280
281static SIMPLE_DEV_PM_OPS(pxa2xx_ac97_pm_ops,
282 pxa2xx_ac97_dev_suspend, pxa2xx_ac97_dev_resume);
283#endif
284
285static struct platform_driver pxa2xx_ac97_driver = {
286 .probe = pxa2xx_ac97_dev_probe,
287 .remove = pxa2xx_ac97_dev_remove,
288 .driver = {
289 .name = "pxa2xx-ac97",
290#ifdef CONFIG_PM_SLEEP
291 .pm = &pxa2xx_ac97_pm_ops,
292#endif
293 .of_match_table = of_match_ptr(pxa2xx_ac97_dt_ids),
294 },
295};
296
297module_platform_driver(pxa2xx_ac97_driver);
298
299MODULE_AUTHOR("Nicolas Pitre");
300MODULE_DESCRIPTION("AC97 driver for the Intel PXA2xx chip");
301MODULE_LICENSE("GPL");
302MODULE_ALIAS("platform:pxa2xx-ac97");
303
