1
2
3
4
5
6
7
8
9
10
11
12#include <linux/module.h>
13#include <linux/moduleparam.h>
14#include <linux/timer.h>
15#include <linux/interrupt.h>
16#include <linux/platform_device.h>
17#include <linux/i2c.h>
18#include <linux/of_platform.h>
19#include <linux/clk.h>
20#include <sound/core.h>
21#include <sound/pcm.h>
22#include <sound/soc.h>
23
24#include <asm/dma.h>
25#include <asm/mach-types.h>
26
27struct snd_soc_card_drvdata_davinci {
28 struct clk *mclk;
29 unsigned sysclk;
30};
31
32static int evm_startup(struct snd_pcm_substream *substream)
33{
34 struct snd_soc_pcm_runtime *rtd = substream->private_data;
35 struct snd_soc_card *soc_card = rtd->card;
36 struct snd_soc_card_drvdata_davinci *drvdata =
37 snd_soc_card_get_drvdata(soc_card);
38
39 if (drvdata->mclk)
40 return clk_prepare_enable(drvdata->mclk);
41
42 return 0;
43}
44
45static void evm_shutdown(struct snd_pcm_substream *substream)
46{
47 struct snd_soc_pcm_runtime *rtd = substream->private_data;
48 struct snd_soc_card *soc_card = rtd->card;
49 struct snd_soc_card_drvdata_davinci *drvdata =
50 snd_soc_card_get_drvdata(soc_card);
51
52 if (drvdata->mclk)
53 clk_disable_unprepare(drvdata->mclk);
54}
55
56static int evm_hw_params(struct snd_pcm_substream *substream,
57 struct snd_pcm_hw_params *params)
58{
59 struct snd_soc_pcm_runtime *rtd = substream->private_data;
60 struct snd_soc_dai *codec_dai = rtd->codec_dai;
61 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
62 struct snd_soc_card *soc_card = rtd->card;
63 int ret = 0;
64 unsigned sysclk = ((struct snd_soc_card_drvdata_davinci *)
65 snd_soc_card_get_drvdata(soc_card))->sysclk;
66
67
68 ret = snd_soc_dai_set_sysclk(codec_dai, 0, sysclk, SND_SOC_CLOCK_OUT);
69 if (ret < 0)
70 return ret;
71
72
73 ret = snd_soc_dai_set_sysclk(cpu_dai, 0, sysclk, SND_SOC_CLOCK_OUT);
74 if (ret < 0)
75 return ret;
76
77 return 0;
78}
79
80static struct snd_soc_ops evm_ops = {
81 .startup = evm_startup,
82 .shutdown = evm_shutdown,
83 .hw_params = evm_hw_params,
84};
85
86
87static const struct snd_soc_dapm_widget aic3x_dapm_widgets[] = {
88 SND_SOC_DAPM_HP("Headphone Jack", NULL),
89 SND_SOC_DAPM_LINE("Line Out", NULL),
90 SND_SOC_DAPM_MIC("Mic Jack", NULL),
91 SND_SOC_DAPM_LINE("Line In", NULL),
92};
93
94
95static const struct snd_soc_dapm_route audio_map[] = {
96
97 {"Headphone Jack", NULL, "HPLOUT"},
98 {"Headphone Jack", NULL, "HPROUT"},
99
100
101 {"Line Out", NULL, "LLOUT"},
102 {"Line Out", NULL, "RLOUT"},
103
104
105 {"MIC3L", NULL, "Mic Bias"},
106 {"MIC3R", NULL, "Mic Bias"},
107 {"Mic Bias", NULL, "Mic Jack"},
108
109
110 {"LINE1L", NULL, "Line In"},
111 {"LINE2L", NULL, "Line In"},
112 {"LINE1R", NULL, "Line In"},
113 {"LINE2R", NULL, "Line In"},
114};
115
116
117static int evm_aic3x_init(struct snd_soc_pcm_runtime *rtd)
118{
119 struct snd_soc_card *card = rtd->card;
120 struct device_node *np = card->dev->of_node;
121 int ret;
122
123
124 snd_soc_dapm_new_controls(&card->dapm, aic3x_dapm_widgets,
125 ARRAY_SIZE(aic3x_dapm_widgets));
126
127 if (np) {
128 ret = snd_soc_of_parse_audio_routing(card, "ti,audio-routing");
129 if (ret)
130 return ret;
131 } else {
132
133 snd_soc_dapm_add_routes(&card->dapm, audio_map,
134 ARRAY_SIZE(audio_map));
135 }
136
137
138 snd_soc_dapm_nc_pin(&card->dapm, "MONO_LOUT");
139 snd_soc_dapm_nc_pin(&card->dapm, "HPLCOM");
140 snd_soc_dapm_nc_pin(&card->dapm, "HPRCOM");
141
142 return 0;
143}
144
145
146static struct snd_soc_dai_link dm6446_evm_dai = {
147 .name = "TLV320AIC3X",
148 .stream_name = "AIC3X",
149 .cpu_dai_name = "davinci-mcbsp",
150 .codec_dai_name = "tlv320aic3x-hifi",
151 .codec_name = "tlv320aic3x-codec.1-001b",
152 .platform_name = "davinci-mcbsp",
153 .init = evm_aic3x_init,
154 .ops = &evm_ops,
155 .dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_CBM_CFM |
156 SND_SOC_DAIFMT_IB_NF,
157};
158
159static struct snd_soc_dai_link dm355_evm_dai = {
160 .name = "TLV320AIC3X",
161 .stream_name = "AIC3X",
162 .cpu_dai_name = "davinci-mcbsp.1",
163 .codec_dai_name = "tlv320aic3x-hifi",
164 .codec_name = "tlv320aic3x-codec.1-001b",
165 .platform_name = "davinci-mcbsp.1",
166 .init = evm_aic3x_init,
167 .ops = &evm_ops,
168 .dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_CBM_CFM |
169 SND_SOC_DAIFMT_IB_NF,
170};
171
172static struct snd_soc_dai_link dm365_evm_dai = {
173#ifdef CONFIG_SND_DM365_AIC3X_CODEC
174 .name = "TLV320AIC3X",
175 .stream_name = "AIC3X",
176 .cpu_dai_name = "davinci-mcbsp",
177 .codec_dai_name = "tlv320aic3x-hifi",
178 .codec_name = "tlv320aic3x-codec.1-0018",
179 .platform_name = "davinci-mcbsp",
180 .init = evm_aic3x_init,
181 .ops = &evm_ops,
182 .dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_CBM_CFM |
183 SND_SOC_DAIFMT_IB_NF,
184#elif defined(CONFIG_SND_DM365_VOICE_CODEC)
185 .name = "Voice Codec - CQ93VC",
186 .stream_name = "CQ93",
187 .cpu_dai_name = "davinci-vcif",
188 .codec_dai_name = "cq93vc-hifi",
189 .codec_name = "cq93vc-codec",
190 .platform_name = "davinci-vcif",
191#endif
192};
193
194static struct snd_soc_dai_link dm6467_evm_dai[] = {
195 {
196 .name = "TLV320AIC3X",
197 .stream_name = "AIC3X",
198 .cpu_dai_name= "davinci-mcasp.0",
199 .codec_dai_name = "tlv320aic3x-hifi",
200 .platform_name = "davinci-mcasp.0",
201 .codec_name = "tlv320aic3x-codec.0-001a",
202 .init = evm_aic3x_init,
203 .ops = &evm_ops,
204 .dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_CBM_CFM |
205 SND_SOC_DAIFMT_IB_NF,
206 },
207 {
208 .name = "McASP",
209 .stream_name = "spdif",
210 .cpu_dai_name= "davinci-mcasp.1",
211 .codec_dai_name = "dit-hifi",
212 .codec_name = "spdif_dit",
213 .platform_name = "davinci-mcasp.1",
214 .dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_CBM_CFM |
215 SND_SOC_DAIFMT_IB_NF,
216 },
217};
218
219static struct snd_soc_dai_link da830_evm_dai = {
220 .name = "TLV320AIC3X",
221 .stream_name = "AIC3X",
222 .cpu_dai_name = "davinci-mcasp.1",
223 .codec_dai_name = "tlv320aic3x-hifi",
224 .codec_name = "tlv320aic3x-codec.1-0018",
225 .platform_name = "davinci-mcasp.1",
226 .init = evm_aic3x_init,
227 .ops = &evm_ops,
228 .dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_CBM_CFM |
229 SND_SOC_DAIFMT_IB_NF,
230};
231
232static struct snd_soc_dai_link da850_evm_dai = {
233 .name = "TLV320AIC3X",
234 .stream_name = "AIC3X",
235 .cpu_dai_name= "davinci-mcasp.0",
236 .codec_dai_name = "tlv320aic3x-hifi",
237 .codec_name = "tlv320aic3x-codec.1-0018",
238 .platform_name = "davinci-mcasp.0",
239 .init = evm_aic3x_init,
240 .ops = &evm_ops,
241 .dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_CBM_CFM |
242 SND_SOC_DAIFMT_IB_NF,
243};
244
245
246
247
248
249
250
251static struct snd_soc_card_drvdata_davinci dm6446_snd_soc_card_drvdata = {
252 .sysclk = 12288000,
253};
254
255static struct snd_soc_card dm6446_snd_soc_card_evm = {
256 .name = "DaVinci DM6446 EVM",
257 .owner = THIS_MODULE,
258 .dai_link = &dm6446_evm_dai,
259 .num_links = 1,
260 .drvdata = &dm6446_snd_soc_card_drvdata,
261};
262
263
264
265static struct snd_soc_card_drvdata_davinci dm355_snd_soc_card_drvdata = {
266 .sysclk = 27000000,
267};
268
269static struct snd_soc_card dm355_snd_soc_card_evm = {
270 .name = "DaVinci DM355 EVM",
271 .owner = THIS_MODULE,
272 .dai_link = &dm355_evm_dai,
273 .num_links = 1,
274 .drvdata = &dm355_snd_soc_card_drvdata,
275};
276
277
278static struct snd_soc_card_drvdata_davinci dm365_snd_soc_card_drvdata = {
279 .sysclk = 27000000,
280};
281
282static struct snd_soc_card dm365_snd_soc_card_evm = {
283 .name = "DaVinci DM365 EVM",
284 .owner = THIS_MODULE,
285 .dai_link = &dm365_evm_dai,
286 .num_links = 1,
287 .drvdata = &dm365_snd_soc_card_drvdata,
288};
289
290
291static struct snd_soc_card_drvdata_davinci dm6467_snd_soc_card_drvdata = {
292 .sysclk = 27000000,
293};
294
295static struct snd_soc_card dm6467_snd_soc_card_evm = {
296 .name = "DaVinci DM6467 EVM",
297 .owner = THIS_MODULE,
298 .dai_link = dm6467_evm_dai,
299 .num_links = ARRAY_SIZE(dm6467_evm_dai),
300 .drvdata = &dm6467_snd_soc_card_drvdata,
301};
302
303static struct snd_soc_card_drvdata_davinci da830_snd_soc_card_drvdata = {
304 .sysclk = 24576000,
305};
306
307static struct snd_soc_card da830_snd_soc_card = {
308 .name = "DA830/OMAP-L137 EVM",
309 .owner = THIS_MODULE,
310 .dai_link = &da830_evm_dai,
311 .num_links = 1,
312 .drvdata = &da830_snd_soc_card_drvdata,
313};
314
315static struct snd_soc_card_drvdata_davinci da850_snd_soc_card_drvdata = {
316 .sysclk = 24576000,
317};
318
319static struct snd_soc_card da850_snd_soc_card = {
320 .name = "DA850/OMAP-L138 EVM",
321 .owner = THIS_MODULE,
322 .dai_link = &da850_evm_dai,
323 .num_links = 1,
324 .drvdata = &da850_snd_soc_card_drvdata,
325};
326
327#if defined(CONFIG_OF)
328
329
330
331
332
333static struct snd_soc_dai_link evm_dai_tlv320aic3x = {
334 .name = "TLV320AIC3X",
335 .stream_name = "AIC3X",
336 .codec_dai_name = "tlv320aic3x-hifi",
337 .ops = &evm_ops,
338 .init = evm_aic3x_init,
339 .dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_CBM_CFM |
340 SND_SOC_DAIFMT_IB_NF,
341};
342
343static const struct of_device_id davinci_evm_dt_ids[] = {
344 {
345 .compatible = "ti,da830-evm-audio",
346 .data = (void *) &evm_dai_tlv320aic3x,
347 },
348 { }
349};
350MODULE_DEVICE_TABLE(of, davinci_evm_dt_ids);
351
352
353static struct snd_soc_card evm_soc_card = {
354 .owner = THIS_MODULE,
355 .num_links = 1,
356};
357
358static int davinci_evm_probe(struct platform_device *pdev)
359{
360 struct device_node *np = pdev->dev.of_node;
361 const struct of_device_id *match;
362 struct snd_soc_dai_link *dai;
363 struct snd_soc_card_drvdata_davinci *drvdata = NULL;
364 struct clk *mclk;
365 int ret = 0;
366
367 match = of_match_device(of_match_ptr(davinci_evm_dt_ids), &pdev->dev);
368 if (!match) {
369 dev_err(&pdev->dev, "Error: No device match found\n");
370 return -ENODEV;
371 }
372
373 dai = (struct snd_soc_dai_link *) match->data;
374
375 evm_soc_card.dai_link = dai;
376
377 dai->codec_of_node = of_parse_phandle(np, "ti,audio-codec", 0);
378 if (!dai->codec_of_node)
379 return -EINVAL;
380
381 dai->cpu_of_node = of_parse_phandle(np, "ti,mcasp-controller", 0);
382 if (!dai->cpu_of_node)
383 return -EINVAL;
384
385 dai->platform_of_node = dai->cpu_of_node;
386
387 evm_soc_card.dev = &pdev->dev;
388 ret = snd_soc_of_parse_card_name(&evm_soc_card, "ti,model");
389 if (ret)
390 return ret;
391
392 mclk = devm_clk_get(&pdev->dev, "mclk");
393 if (PTR_ERR(mclk) == -EPROBE_DEFER) {
394 return -EPROBE_DEFER;
395 } else if (IS_ERR(mclk)) {
396 dev_dbg(&pdev->dev, "mclk not found.\n");
397 mclk = NULL;
398 }
399
400 drvdata = devm_kzalloc(&pdev->dev, sizeof(*drvdata), GFP_KERNEL);
401 if (!drvdata)
402 return -ENOMEM;
403
404 drvdata->mclk = mclk;
405
406 ret = of_property_read_u32(np, "ti,codec-clock-rate", &drvdata->sysclk);
407
408 if (ret < 0) {
409 if (!drvdata->mclk) {
410 dev_err(&pdev->dev,
411 "No clock or clock rate defined.\n");
412 return -EINVAL;
413 }
414 drvdata->sysclk = clk_get_rate(drvdata->mclk);
415 } else if (drvdata->mclk) {
416 unsigned int requestd_rate = drvdata->sysclk;
417 clk_set_rate(drvdata->mclk, drvdata->sysclk);
418 drvdata->sysclk = clk_get_rate(drvdata->mclk);
419 if (drvdata->sysclk != requestd_rate)
420 dev_warn(&pdev->dev,
421 "Could not get requested rate %u using %u.\n",
422 requestd_rate, drvdata->sysclk);
423 }
424
425 snd_soc_card_set_drvdata(&evm_soc_card, drvdata);
426 ret = devm_snd_soc_register_card(&pdev->dev, &evm_soc_card);
427
428 if (ret)
429 dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", ret);
430
431 return ret;
432}
433
434static struct platform_driver davinci_evm_driver = {
435 .probe = davinci_evm_probe,
436 .driver = {
437 .name = "davinci_evm",
438 .pm = &snd_soc_pm_ops,
439 .of_match_table = of_match_ptr(davinci_evm_dt_ids),
440 },
441};
442#endif
443
444static struct platform_device *evm_snd_device;
445
446static int __init evm_init(void)
447{
448 struct snd_soc_card *evm_snd_dev_data;
449 int index;
450 int ret;
451
452
453
454
455
456#if defined(CONFIG_OF)
457 if (of_have_populated_dt())
458 return platform_driver_register(&davinci_evm_driver);
459#endif
460
461 if (machine_is_davinci_evm()) {
462 evm_snd_dev_data = &dm6446_snd_soc_card_evm;
463 index = 0;
464 } else if (machine_is_davinci_dm355_evm()) {
465 evm_snd_dev_data = &dm355_snd_soc_card_evm;
466 index = 1;
467 } else if (machine_is_davinci_dm365_evm()) {
468 evm_snd_dev_data = &dm365_snd_soc_card_evm;
469 index = 0;
470 } else if (machine_is_davinci_dm6467_evm()) {
471 evm_snd_dev_data = &dm6467_snd_soc_card_evm;
472 index = 0;
473 } else if (machine_is_davinci_da830_evm()) {
474 evm_snd_dev_data = &da830_snd_soc_card;
475 index = 1;
476 } else if (machine_is_davinci_da850_evm()) {
477 evm_snd_dev_data = &da850_snd_soc_card;
478 index = 0;
479 } else
480 return -EINVAL;
481
482 evm_snd_device = platform_device_alloc("soc-audio", index);
483 if (!evm_snd_device)
484 return -ENOMEM;
485
486 platform_set_drvdata(evm_snd_device, evm_snd_dev_data);
487 ret = platform_device_add(evm_snd_device);
488 if (ret)
489 platform_device_put(evm_snd_device);
490
491 return ret;
492}
493
494static void __exit evm_exit(void)
495{
496#if defined(CONFIG_OF)
497 if (of_have_populated_dt()) {
498 platform_driver_unregister(&davinci_evm_driver);
499 return;
500 }
501#endif
502
503 platform_device_unregister(evm_snd_device);
504}
505
506module_init(evm_init);
507module_exit(evm_exit);
508
509MODULE_AUTHOR("Vladimir Barinov");
510MODULE_DESCRIPTION("TI DAVINCI EVM ASoC driver");
511MODULE_LICENSE("GPL");
512
