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10#include <linux/init.h>
11#include <linux/io.h>
12#include <linux/module.h>
13#include <linux/platform_device.h>
14#include <linux/dmaengine.h>
15#include <linux/dma/pxa-dma.h>
16
17#include <sound/ac97/controller.h>
18#include <sound/core.h>
19#include <sound/ac97_codec.h>
20#include <sound/soc.h>
21#include <sound/pxa2xx-lib.h>
22#include <sound/dmaengine_pcm.h>
23
24#include <mach/hardware.h>
25#include <mach/regs-ac97.h>
26#include <mach/audio.h>
27
28static void pxa2xx_ac97_warm_reset(struct ac97_controller *adrv)
29{
30 pxa2xx_ac97_try_warm_reset();
31
32 pxa2xx_ac97_finish_reset();
33}
34
35static void pxa2xx_ac97_cold_reset(struct ac97_controller *adrv)
36{
37 pxa2xx_ac97_try_cold_reset();
38
39 pxa2xx_ac97_finish_reset();
40}
41
42static int pxa2xx_ac97_read_actrl(struct ac97_controller *adrv, int slot,
43 unsigned short reg)
44{
45 return pxa2xx_ac97_read(slot, reg);
46}
47
48static int pxa2xx_ac97_write_actrl(struct ac97_controller *adrv, int slot,
49 unsigned short reg, unsigned short val)
50{
51 return pxa2xx_ac97_write(slot, reg, val);
52}
53
54static struct ac97_controller_ops pxa2xx_ac97_ops = {
55 .read = pxa2xx_ac97_read_actrl,
56 .write = pxa2xx_ac97_write_actrl,
57 .warm_reset = pxa2xx_ac97_warm_reset,
58 .reset = pxa2xx_ac97_cold_reset,
59};
60
61static struct snd_dmaengine_dai_dma_data pxa2xx_ac97_pcm_stereo_in = {
62 .addr = __PREG(PCDR),
63 .addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES,
64 .chan_name = "pcm_pcm_stereo_in",
65 .maxburst = 32,
66};
67
68static struct snd_dmaengine_dai_dma_data pxa2xx_ac97_pcm_stereo_out = {
69 .addr = __PREG(PCDR),
70 .addr_width = DMA_SLAVE_BUSWIDTH_4_BYTES,
71 .chan_name = "pcm_pcm_stereo_out",
72 .maxburst = 32,
73};
74
75static struct snd_dmaengine_dai_dma_data pxa2xx_ac97_pcm_aux_mono_out = {
76 .addr = __PREG(MODR),
77 .addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES,
78 .chan_name = "pcm_aux_mono_out",
79 .maxburst = 16,
80};
81
82static struct snd_dmaengine_dai_dma_data pxa2xx_ac97_pcm_aux_mono_in = {
83 .addr = __PREG(MODR),
84 .addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES,
85 .chan_name = "pcm_aux_mono_in",
86 .maxburst = 16,
87};
88
89static struct snd_dmaengine_dai_dma_data pxa2xx_ac97_pcm_mic_mono_in = {
90 .addr = __PREG(MCDR),
91 .addr_width = DMA_SLAVE_BUSWIDTH_2_BYTES,
92 .chan_name = "pcm_aux_mic_mono",
93 .maxburst = 16,
94};
95
96static int pxa2xx_ac97_hifi_startup(struct snd_pcm_substream *substream,
97 struct snd_soc_dai *cpu_dai)
98{
99 struct snd_dmaengine_dai_dma_data *dma_data;
100
101 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
102 dma_data = &pxa2xx_ac97_pcm_stereo_out;
103 else
104 dma_data = &pxa2xx_ac97_pcm_stereo_in;
105
106 snd_soc_dai_set_dma_data(cpu_dai, substream, dma_data);
107
108 return 0;
109}
110
111static int pxa2xx_ac97_aux_startup(struct snd_pcm_substream *substream,
112 struct snd_soc_dai *cpu_dai)
113{
114 struct snd_dmaengine_dai_dma_data *dma_data;
115
116 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
117 dma_data = &pxa2xx_ac97_pcm_aux_mono_out;
118 else
119 dma_data = &pxa2xx_ac97_pcm_aux_mono_in;
120
121 snd_soc_dai_set_dma_data(cpu_dai, substream, dma_data);
122
123 return 0;
124}
125
126static int pxa2xx_ac97_mic_startup(struct snd_pcm_substream *substream,
127 struct snd_soc_dai *cpu_dai)
128{
129 if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
130 return -ENODEV;
131 snd_soc_dai_set_dma_data(cpu_dai, substream,
132 &pxa2xx_ac97_pcm_mic_mono_in);
133
134 return 0;
135}
136
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
141static const struct snd_soc_dai_ops pxa_ac97_hifi_dai_ops = {
142 .startup = pxa2xx_ac97_hifi_startup,
143};
144
145static const struct snd_soc_dai_ops pxa_ac97_aux_dai_ops = {
146 .startup = pxa2xx_ac97_aux_startup,
147};
148
149static const struct snd_soc_dai_ops pxa_ac97_mic_dai_ops = {
150 .startup = pxa2xx_ac97_mic_startup,
151};
152
153
154
155
156
157static struct snd_soc_dai_driver pxa_ac97_dai_driver[] = {
158{
159 .name = "pxa2xx-ac97",
160 .playback = {
161 .stream_name = "AC97 Playback",
162 .channels_min = 2,
163 .channels_max = 2,
164 .rates = PXA2XX_AC97_RATES,
165 .formats = SNDRV_PCM_FMTBIT_S16_LE,},
166 .capture = {
167 .stream_name = "AC97 Capture",
168 .channels_min = 2,
169 .channels_max = 2,
170 .rates = PXA2XX_AC97_RATES,
171 .formats = SNDRV_PCM_FMTBIT_S16_LE,},
172 .ops = &pxa_ac97_hifi_dai_ops,
173},
174{
175 .name = "pxa2xx-ac97-aux",
176 .playback = {
177 .stream_name = "AC97 Aux Playback",
178 .channels_min = 1,
179 .channels_max = 1,
180 .rates = PXA2XX_AC97_RATES,
181 .formats = SNDRV_PCM_FMTBIT_S16_LE,},
182 .capture = {
183 .stream_name = "AC97 Aux Capture",
184 .channels_min = 1,
185 .channels_max = 1,
186 .rates = PXA2XX_AC97_RATES,
187 .formats = SNDRV_PCM_FMTBIT_S16_LE,},
188 .ops = &pxa_ac97_aux_dai_ops,
189},
190{
191 .name = "pxa2xx-ac97-mic",
192 .capture = {
193 .stream_name = "AC97 Mic Capture",
194 .channels_min = 1,
195 .channels_max = 1,
196 .rates = PXA2XX_AC97_RATES,
197 .formats = SNDRV_PCM_FMTBIT_S16_LE,},
198 .ops = &pxa_ac97_mic_dai_ops,
199},
200};
201
202static const struct snd_soc_component_driver pxa_ac97_component = {
203 .name = "pxa-ac97",
204 .pcm_construct = pxa2xx_soc_pcm_new,
205 .open = pxa2xx_soc_pcm_open,
206 .close = pxa2xx_soc_pcm_close,
207 .hw_params = pxa2xx_soc_pcm_hw_params,
208 .prepare = pxa2xx_soc_pcm_prepare,
209 .trigger = pxa2xx_soc_pcm_trigger,
210 .pointer = pxa2xx_soc_pcm_pointer,
211};
212
213#ifdef CONFIG_OF
214static const struct of_device_id pxa2xx_ac97_dt_ids[] = {
215 { .compatible = "marvell,pxa250-ac97", },
216 { .compatible = "marvell,pxa270-ac97", },
217 { .compatible = "marvell,pxa300-ac97", },
218 { }
219};
220MODULE_DEVICE_TABLE(of, pxa2xx_ac97_dt_ids);
221
222#endif
223
224static int pxa2xx_ac97_dev_probe(struct platform_device *pdev)
225{
226 int ret;
227 struct ac97_controller *ctrl;
228 pxa2xx_audio_ops_t *pdata = pdev->dev.platform_data;
229 void **codecs_pdata;
230
231 if (pdev->id != -1) {
232 dev_err(&pdev->dev, "PXA2xx has only one AC97 port.\n");
233 return -ENXIO;
234 }
235
236 ret = pxa2xx_ac97_hw_probe(pdev);
237 if (ret) {
238 dev_err(&pdev->dev, "PXA2xx AC97 hw probe error (%d)\n", ret);
239 return ret;
240 }
241
242 codecs_pdata = pdata ? pdata->codec_pdata : NULL;
243 ctrl = snd_ac97_controller_register(&pxa2xx_ac97_ops, &pdev->dev,
244 AC97_SLOTS_AVAILABLE_ALL,
245 codecs_pdata);
246 if (IS_ERR(ctrl))
247 return PTR_ERR(ctrl);
248
249 platform_set_drvdata(pdev, ctrl);
250
251
252
253
254 return devm_snd_soc_register_component(&pdev->dev, &pxa_ac97_component,
255 pxa_ac97_dai_driver, ARRAY_SIZE(pxa_ac97_dai_driver));
256}
257
258static int pxa2xx_ac97_dev_remove(struct platform_device *pdev)
259{
260 struct ac97_controller *ctrl = platform_get_drvdata(pdev);
261
262 snd_ac97_controller_unregister(ctrl);
263 pxa2xx_ac97_hw_remove(pdev);
264 return 0;
265}
266
267#ifdef CONFIG_PM_SLEEP
268static int pxa2xx_ac97_dev_suspend(struct device *dev)
269{
270 return pxa2xx_ac97_hw_suspend();
271}
272
273static int pxa2xx_ac97_dev_resume(struct device *dev)
274{
275 return pxa2xx_ac97_hw_resume();
276}
277
278static SIMPLE_DEV_PM_OPS(pxa2xx_ac97_pm_ops,
279 pxa2xx_ac97_dev_suspend, pxa2xx_ac97_dev_resume);
280#endif
281
282static struct platform_driver pxa2xx_ac97_driver = {
283 .probe = pxa2xx_ac97_dev_probe,
284 .remove = pxa2xx_ac97_dev_remove,
285 .driver = {
286 .name = "pxa2xx-ac97",
287#ifdef CONFIG_PM_SLEEP
288 .pm = &pxa2xx_ac97_pm_ops,
289#endif
290 .of_match_table = of_match_ptr(pxa2xx_ac97_dt_ids),
291 },
292};
293
294module_platform_driver(pxa2xx_ac97_driver);
295
296MODULE_AUTHOR("Nicolas Pitre");
297MODULE_DESCRIPTION("AC97 driver for the Intel PXA2xx chip");
298MODULE_LICENSE("GPL");
299MODULE_ALIAS("platform:pxa2xx-ac97");
300
