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9#include <linux/module.h>
10#include <linux/moduleparam.h>
11#include <linux/timer.h>
12#include <linux/interrupt.h>
13#include <linux/platform_device.h>
14#include <linux/i2c.h>
15#include <linux/of_platform.h>
16#include <linux/clk.h>
17#include <sound/core.h>
18#include <sound/pcm.h>
19#include <sound/soc.h>
20
21#include <asm/dma.h>
22#include <asm/mach-types.h>
23
24struct snd_soc_card_drvdata_davinci {
25 struct clk *mclk;
26 unsigned sysclk;
27};
28
29static int evm_startup(struct snd_pcm_substream *substream)
30{
31 struct snd_soc_pcm_runtime *rtd = substream->private_data;
32 struct snd_soc_card *soc_card = rtd->card;
33 struct snd_soc_card_drvdata_davinci *drvdata =
34 snd_soc_card_get_drvdata(soc_card);
35
36 if (drvdata->mclk)
37 return clk_prepare_enable(drvdata->mclk);
38
39 return 0;
40}
41
42static void evm_shutdown(struct snd_pcm_substream *substream)
43{
44 struct snd_soc_pcm_runtime *rtd = substream->private_data;
45 struct snd_soc_card *soc_card = rtd->card;
46 struct snd_soc_card_drvdata_davinci *drvdata =
47 snd_soc_card_get_drvdata(soc_card);
48
49 if (drvdata->mclk)
50 clk_disable_unprepare(drvdata->mclk);
51}
52
53static int evm_hw_params(struct snd_pcm_substream *substream,
54 struct snd_pcm_hw_params *params)
55{
56 struct snd_soc_pcm_runtime *rtd = substream->private_data;
57 struct snd_soc_dai *codec_dai = rtd->codec_dai;
58 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
59 struct snd_soc_card *soc_card = rtd->card;
60 int ret = 0;
61 unsigned sysclk = ((struct snd_soc_card_drvdata_davinci *)
62 snd_soc_card_get_drvdata(soc_card))->sysclk;
63
64
65 ret = snd_soc_dai_set_sysclk(codec_dai, 0, sysclk, SND_SOC_CLOCK_OUT);
66 if (ret < 0)
67 return ret;
68
69
70 ret = snd_soc_dai_set_sysclk(cpu_dai, 0, sysclk, SND_SOC_CLOCK_OUT);
71 if (ret < 0)
72 return ret;
73
74 return 0;
75}
76
77static struct snd_soc_ops evm_ops = {
78 .startup = evm_startup,
79 .shutdown = evm_shutdown,
80 .hw_params = evm_hw_params,
81};
82
83
84static const struct snd_soc_dapm_widget aic3x_dapm_widgets[] = {
85 SND_SOC_DAPM_HP("Headphone Jack", NULL),
86 SND_SOC_DAPM_LINE("Line Out", NULL),
87 SND_SOC_DAPM_MIC("Mic Jack", NULL),
88 SND_SOC_DAPM_LINE("Line In", NULL),
89};
90
91
92static const struct snd_soc_dapm_route audio_map[] = {
93
94 {"Headphone Jack", NULL, "HPLOUT"},
95 {"Headphone Jack", NULL, "HPROUT"},
96
97
98 {"Line Out", NULL, "LLOUT"},
99 {"Line Out", NULL, "RLOUT"},
100
101
102 {"MIC3L", NULL, "Mic Bias"},
103 {"MIC3R", NULL, "Mic Bias"},
104 {"Mic Bias", NULL, "Mic Jack"},
105
106
107 {"LINE1L", NULL, "Line In"},
108 {"LINE2L", NULL, "Line In"},
109 {"LINE1R", NULL, "Line In"},
110 {"LINE2R", NULL, "Line In"},
111};
112
113
114static int evm_aic3x_init(struct snd_soc_pcm_runtime *rtd)
115{
116 struct snd_soc_card *card = rtd->card;
117 struct device_node *np = card->dev->of_node;
118 int ret;
119
120
121 snd_soc_dapm_new_controls(&card->dapm, aic3x_dapm_widgets,
122 ARRAY_SIZE(aic3x_dapm_widgets));
123
124 if (np) {
125 ret = snd_soc_of_parse_audio_routing(card, "ti,audio-routing");
126 if (ret)
127 return ret;
128 } else {
129
130 snd_soc_dapm_add_routes(&card->dapm, audio_map,
131 ARRAY_SIZE(audio_map));
132 }
133
134
135 snd_soc_dapm_nc_pin(&card->dapm, "MONO_LOUT");
136 snd_soc_dapm_nc_pin(&card->dapm, "HPLCOM");
137 snd_soc_dapm_nc_pin(&card->dapm, "HPRCOM");
138
139 return 0;
140}
141
142
143static struct snd_soc_dai_link dm6446_evm_dai = {
144 .name = "TLV320AIC3X",
145 .stream_name = "AIC3X",
146 .cpu_dai_name = "davinci-mcbsp",
147 .codec_dai_name = "tlv320aic3x-hifi",
148 .codec_name = "tlv320aic3x-codec.1-001b",
149 .platform_name = "davinci-mcbsp",
150 .init = evm_aic3x_init,
151 .ops = &evm_ops,
152 .dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_CBM_CFM |
153 SND_SOC_DAIFMT_IB_NF,
154};
155
156static struct snd_soc_dai_link dm355_evm_dai = {
157 .name = "TLV320AIC3X",
158 .stream_name = "AIC3X",
159 .cpu_dai_name = "davinci-mcbsp.1",
160 .codec_dai_name = "tlv320aic3x-hifi",
161 .codec_name = "tlv320aic3x-codec.1-001b",
162 .platform_name = "davinci-mcbsp.1",
163 .init = evm_aic3x_init,
164 .ops = &evm_ops,
165 .dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_CBM_CFM |
166 SND_SOC_DAIFMT_IB_NF,
167};
168
169static struct snd_soc_dai_link dm365_evm_dai = {
170#ifdef CONFIG_SND_SOC_DM365_AIC3X_CODEC
171 .name = "TLV320AIC3X",
172 .stream_name = "AIC3X",
173 .cpu_dai_name = "davinci-mcbsp",
174 .codec_dai_name = "tlv320aic3x-hifi",
175 .codec_name = "tlv320aic3x-codec.1-0018",
176 .platform_name = "davinci-mcbsp",
177 .init = evm_aic3x_init,
178 .ops = &evm_ops,
179 .dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_CBM_CFM |
180 SND_SOC_DAIFMT_IB_NF,
181#elif defined(CONFIG_SND_SOC_DM365_VOICE_CODEC)
182 .name = "Voice Codec - CQ93VC",
183 .stream_name = "CQ93",
184 .cpu_dai_name = "davinci-vcif",
185 .codec_dai_name = "cq93vc-hifi",
186 .codec_name = "cq93vc-codec",
187 .platform_name = "davinci-vcif",
188#endif
189};
190
191static struct snd_soc_dai_link dm6467_evm_dai[] = {
192 {
193 .name = "TLV320AIC3X",
194 .stream_name = "AIC3X",
195 .cpu_dai_name= "davinci-mcasp.0",
196 .codec_dai_name = "tlv320aic3x-hifi",
197 .platform_name = "davinci-mcasp.0",
198 .codec_name = "tlv320aic3x-codec.0-001a",
199 .init = evm_aic3x_init,
200 .ops = &evm_ops,
201 .dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_CBM_CFM |
202 SND_SOC_DAIFMT_IB_NF,
203 },
204 {
205 .name = "McASP",
206 .stream_name = "spdif",
207 .cpu_dai_name= "davinci-mcasp.1",
208 .codec_dai_name = "dit-hifi",
209 .codec_name = "spdif_dit",
210 .platform_name = "davinci-mcasp.1",
211 .dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_CBM_CFM |
212 SND_SOC_DAIFMT_IB_NF,
213 },
214};
215
216static struct snd_soc_dai_link da830_evm_dai = {
217 .name = "TLV320AIC3X",
218 .stream_name = "AIC3X",
219 .cpu_dai_name = "davinci-mcasp.1",
220 .codec_dai_name = "tlv320aic3x-hifi",
221 .codec_name = "tlv320aic3x-codec.1-0018",
222 .platform_name = "davinci-mcasp.1",
223 .init = evm_aic3x_init,
224 .ops = &evm_ops,
225 .dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_CBM_CFM |
226 SND_SOC_DAIFMT_IB_NF,
227};
228
229static struct snd_soc_dai_link da850_evm_dai = {
230 .name = "TLV320AIC3X",
231 .stream_name = "AIC3X",
232 .cpu_dai_name= "davinci-mcasp.0",
233 .codec_dai_name = "tlv320aic3x-hifi",
234 .codec_name = "tlv320aic3x-codec.1-0018",
235 .platform_name = "davinci-mcasp.0",
236 .init = evm_aic3x_init,
237 .ops = &evm_ops,
238 .dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_CBM_CFM |
239 SND_SOC_DAIFMT_IB_NF,
240};
241
242
243
244
245
246
247
248static struct snd_soc_card_drvdata_davinci dm6446_snd_soc_card_drvdata = {
249 .sysclk = 12288000,
250};
251
252static struct snd_soc_card dm6446_snd_soc_card_evm = {
253 .name = "DaVinci DM6446 EVM",
254 .owner = THIS_MODULE,
255 .dai_link = &dm6446_evm_dai,
256 .num_links = 1,
257 .drvdata = &dm6446_snd_soc_card_drvdata,
258};
259
260
261
262static struct snd_soc_card_drvdata_davinci dm355_snd_soc_card_drvdata = {
263 .sysclk = 27000000,
264};
265
266static struct snd_soc_card dm355_snd_soc_card_evm = {
267 .name = "DaVinci DM355 EVM",
268 .owner = THIS_MODULE,
269 .dai_link = &dm355_evm_dai,
270 .num_links = 1,
271 .drvdata = &dm355_snd_soc_card_drvdata,
272};
273
274
275static struct snd_soc_card_drvdata_davinci dm365_snd_soc_card_drvdata = {
276 .sysclk = 27000000,
277};
278
279static struct snd_soc_card dm365_snd_soc_card_evm = {
280 .name = "DaVinci DM365 EVM",
281 .owner = THIS_MODULE,
282 .dai_link = &dm365_evm_dai,
283 .num_links = 1,
284 .drvdata = &dm365_snd_soc_card_drvdata,
285};
286
287
288static struct snd_soc_card_drvdata_davinci dm6467_snd_soc_card_drvdata = {
289 .sysclk = 27000000,
290};
291
292static struct snd_soc_card dm6467_snd_soc_card_evm = {
293 .name = "DaVinci DM6467 EVM",
294 .owner = THIS_MODULE,
295 .dai_link = dm6467_evm_dai,
296 .num_links = ARRAY_SIZE(dm6467_evm_dai),
297 .drvdata = &dm6467_snd_soc_card_drvdata,
298};
299
300static struct snd_soc_card_drvdata_davinci da830_snd_soc_card_drvdata = {
301 .sysclk = 24576000,
302};
303
304static struct snd_soc_card da830_snd_soc_card = {
305 .name = "DA830/OMAP-L137 EVM",
306 .owner = THIS_MODULE,
307 .dai_link = &da830_evm_dai,
308 .num_links = 1,
309 .drvdata = &da830_snd_soc_card_drvdata,
310};
311
312static struct snd_soc_card_drvdata_davinci da850_snd_soc_card_drvdata = {
313 .sysclk = 24576000,
314};
315
316static struct snd_soc_card da850_snd_soc_card = {
317 .name = "DA850/OMAP-L138 EVM",
318 .owner = THIS_MODULE,
319 .dai_link = &da850_evm_dai,
320 .num_links = 1,
321 .drvdata = &da850_snd_soc_card_drvdata,
322};
323
324#if defined(CONFIG_OF)
325
326
327
328
329
330static struct snd_soc_dai_link evm_dai_tlv320aic3x = {
331 .name = "TLV320AIC3X",
332 .stream_name = "AIC3X",
333 .codec_dai_name = "tlv320aic3x-hifi",
334 .ops = &evm_ops,
335 .init = evm_aic3x_init,
336 .dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_CBM_CFM |
337 SND_SOC_DAIFMT_IB_NF,
338};
339
340static const struct of_device_id davinci_evm_dt_ids[] = {
341 {
342 .compatible = "ti,da830-evm-audio",
343 .data = (void *) &evm_dai_tlv320aic3x,
344 },
345 { }
346};
347MODULE_DEVICE_TABLE(of, davinci_evm_dt_ids);
348
349
350static struct snd_soc_card evm_soc_card = {
351 .owner = THIS_MODULE,
352 .num_links = 1,
353};
354
355static int davinci_evm_probe(struct platform_device *pdev)
356{
357 struct device_node *np = pdev->dev.of_node;
358 const struct of_device_id *match;
359 struct snd_soc_dai_link *dai;
360 struct snd_soc_card_drvdata_davinci *drvdata = NULL;
361 struct clk *mclk;
362 int ret = 0;
363
364 match = of_match_device(of_match_ptr(davinci_evm_dt_ids), &pdev->dev);
365 if (!match) {
366 dev_err(&pdev->dev, "Error: No device match found\n");
367 return -ENODEV;
368 }
369
370 dai = (struct snd_soc_dai_link *) match->data;
371
372 evm_soc_card.dai_link = dai;
373
374 dai->codec_of_node = of_parse_phandle(np, "ti,audio-codec", 0);
375 if (!dai->codec_of_node)
376 return -EINVAL;
377
378 dai->cpu_of_node = of_parse_phandle(np, "ti,mcasp-controller", 0);
379 if (!dai->cpu_of_node)
380 return -EINVAL;
381
382 dai->platform_of_node = dai->cpu_of_node;
383
384 evm_soc_card.dev = &pdev->dev;
385 ret = snd_soc_of_parse_card_name(&evm_soc_card, "ti,model");
386 if (ret)
387 return ret;
388
389 mclk = devm_clk_get(&pdev->dev, "mclk");
390 if (PTR_ERR(mclk) == -EPROBE_DEFER) {
391 return -EPROBE_DEFER;
392 } else if (IS_ERR(mclk)) {
393 dev_dbg(&pdev->dev, "mclk not found.\n");
394 mclk = NULL;
395 }
396
397 drvdata = devm_kzalloc(&pdev->dev, sizeof(*drvdata), GFP_KERNEL);
398 if (!drvdata)
399 return -ENOMEM;
400
401 drvdata->mclk = mclk;
402
403 ret = of_property_read_u32(np, "ti,codec-clock-rate", &drvdata->sysclk);
404
405 if (ret < 0) {
406 if (!drvdata->mclk) {
407 dev_err(&pdev->dev,
408 "No clock or clock rate defined.\n");
409 return -EINVAL;
410 }
411 drvdata->sysclk = clk_get_rate(drvdata->mclk);
412 } else if (drvdata->mclk) {
413 unsigned int requestd_rate = drvdata->sysclk;
414 clk_set_rate(drvdata->mclk, drvdata->sysclk);
415 drvdata->sysclk = clk_get_rate(drvdata->mclk);
416 if (drvdata->sysclk != requestd_rate)
417 dev_warn(&pdev->dev,
418 "Could not get requested rate %u using %u.\n",
419 requestd_rate, drvdata->sysclk);
420 }
421
422 snd_soc_card_set_drvdata(&evm_soc_card, drvdata);
423 ret = devm_snd_soc_register_card(&pdev->dev, &evm_soc_card);
424
425 if (ret)
426 dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", ret);
427
428 return ret;
429}
430
431static struct platform_driver davinci_evm_driver = {
432 .probe = davinci_evm_probe,
433 .driver = {
434 .name = "davinci_evm",
435 .pm = &snd_soc_pm_ops,
436 .of_match_table = of_match_ptr(davinci_evm_dt_ids),
437 },
438};
439#endif
440
441static struct platform_device *evm_snd_device;
442
443static int __init evm_init(void)
444{
445 struct snd_soc_card *evm_snd_dev_data;
446 int index;
447 int ret;
448
449
450
451
452
453#if defined(CONFIG_OF)
454 if (of_have_populated_dt())
455 return platform_driver_register(&davinci_evm_driver);
456#endif
457
458 if (machine_is_davinci_evm()) {
459 evm_snd_dev_data = &dm6446_snd_soc_card_evm;
460 index = 0;
461 } else if (machine_is_davinci_dm355_evm()) {
462 evm_snd_dev_data = &dm355_snd_soc_card_evm;
463 index = 1;
464 } else if (machine_is_davinci_dm365_evm()) {
465 evm_snd_dev_data = &dm365_snd_soc_card_evm;
466 index = 0;
467 } else if (machine_is_davinci_dm6467_evm()) {
468 evm_snd_dev_data = &dm6467_snd_soc_card_evm;
469 index = 0;
470 } else if (machine_is_davinci_da830_evm()) {
471 evm_snd_dev_data = &da830_snd_soc_card;
472 index = 1;
473 } else if (machine_is_davinci_da850_evm()) {
474 evm_snd_dev_data = &da850_snd_soc_card;
475 index = 0;
476 } else
477 return -EINVAL;
478
479 evm_snd_device = platform_device_alloc("soc-audio", index);
480 if (!evm_snd_device)
481 return -ENOMEM;
482
483 platform_set_drvdata(evm_snd_device, evm_snd_dev_data);
484 ret = platform_device_add(evm_snd_device);
485 if (ret)
486 platform_device_put(evm_snd_device);
487
488 return ret;
489}
490
491static void __exit evm_exit(void)
492{
493#if defined(CONFIG_OF)
494 if (of_have_populated_dt()) {
495 platform_driver_unregister(&davinci_evm_driver);
496 return;
497 }
498#endif
499
500 platform_device_unregister(evm_snd_device);
501}
502
503module_init(evm_init);
504module_exit(evm_exit);
505
506MODULE_AUTHOR("Vladimir Barinov");
507MODULE_DESCRIPTION("TI DAVINCI EVM ASoC driver");
508MODULE_LICENSE("GPL");
509
