This source file includes following definitions.
- evm_startup
- evm_shutdown
- evm_hw_params
- evm_aic3x_init
- davinci_evm_probe
- evm_init
- evm_exit
1
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8
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
24 struct snd_soc_card_drvdata_davinci {
25 struct clk *mclk;
26 unsigned sysclk;
27 };
28
29 static 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
42 static 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
53 static 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 && ret != -ENOTSUPP)
72 return ret;
73
74 return 0;
75 }
76
77 static struct snd_soc_ops evm_ops = {
78 .startup = evm_startup,
79 .shutdown = evm_shutdown,
80 .hw_params = evm_hw_params,
81 };
82
83
84 static 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
92 static 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
114 static 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
143 SND_SOC_DAILINK_DEFS(dm6446,
144 DAILINK_COMP_ARRAY(COMP_CPU("davinci-mcbsp")),
145 DAILINK_COMP_ARRAY(COMP_CODEC("tlv320aic3x-codec.1-001b",
146 "tlv320aic3x-hifi")),
147 DAILINK_COMP_ARRAY(COMP_PLATFORM("davinci-mcbsp")));
148
149 static struct snd_soc_dai_link dm6446_evm_dai = {
150 .name = "TLV320AIC3X",
151 .stream_name = "AIC3X",
152 .init = evm_aic3x_init,
153 .ops = &evm_ops,
154 .dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_CBM_CFM |
155 SND_SOC_DAIFMT_IB_NF,
156 SND_SOC_DAILINK_REG(dm6446),
157 };
158
159 SND_SOC_DAILINK_DEFS(dm355,
160 DAILINK_COMP_ARRAY(COMP_CPU("davinci-mcbsp.1")),
161 DAILINK_COMP_ARRAY(COMP_CODEC("tlv320aic3x-codec.1-001b",
162 "tlv320aic3x-hifi")),
163 DAILINK_COMP_ARRAY(COMP_PLATFORM("davinci-mcbsp.1")));
164
165 static struct snd_soc_dai_link dm355_evm_dai = {
166 .name = "TLV320AIC3X",
167 .stream_name = "AIC3X",
168 .init = evm_aic3x_init,
169 .ops = &evm_ops,
170 .dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_CBM_CFM |
171 SND_SOC_DAIFMT_IB_NF,
172 SND_SOC_DAILINK_REG(dm355),
173 };
174
175 #ifdef CONFIG_SND_SOC_DM365_AIC3X_CODEC
176 SND_SOC_DAILINK_DEFS(dm365,
177 DAILINK_COMP_ARRAY(COMP_CPU("davinci-mcbsp")),
178 DAILINK_COMP_ARRAY(COMP_CODEC("tlv320aic3x-codec.1-0018",
179 "tlv320aic3x-hifi")),
180 DAILINK_COMP_ARRAY(COMP_PLATFORM("davinci-mcbsp")));
181 #elif defined(CONFIG_SND_SOC_DM365_VOICE_CODEC)
182 SND_SOC_DAILINK_DEFS(dm365,
183 DAILINK_COMP_ARRAY(COMP_CPU("davinci-vcif")),
184 DAILINK_COMP_ARRAY(COMP_CODEC("cq93vc-codec", "cq93vc-hifi")),
185 DAILINK_COMP_ARRAY(COMP_PLATFORM("davinci-vcif")));
186 #endif
187
188 static struct snd_soc_dai_link dm365_evm_dai = {
189 #ifdef CONFIG_SND_SOC_DM365_AIC3X_CODEC
190 .name = "TLV320AIC3X",
191 .stream_name = "AIC3X",
192 .init = evm_aic3x_init,
193 .ops = &evm_ops,
194 .dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_CBM_CFM |
195 SND_SOC_DAIFMT_IB_NF,
196 SND_SOC_DAILINK_REG(dm365),
197 #elif defined(CONFIG_SND_SOC_DM365_VOICE_CODEC)
198 .name = "Voice Codec - CQ93VC",
199 .stream_name = "CQ93",
200 SND_SOC_DAILINK_REG(dm365),
201 #endif
202 };
203
204 SND_SOC_DAILINK_DEFS(dm6467_aic3x,
205 DAILINK_COMP_ARRAY(COMP_CPU("davinci-mcasp.0")),
206 DAILINK_COMP_ARRAY(COMP_CODEC("tlv320aic3x-codec.0-001a",
207 "tlv320aic3x-hifi")),
208 DAILINK_COMP_ARRAY(COMP_PLATFORM("davinci-mcasp.0")));
209
210 SND_SOC_DAILINK_DEFS(dm6467_spdif,
211 DAILINK_COMP_ARRAY(COMP_CPU("davinci-mcasp.1")),
212 DAILINK_COMP_ARRAY(COMP_CODEC("spdif_dit", "dit-hifi")),
213 DAILINK_COMP_ARRAY(COMP_PLATFORM("davinci-mcasp.1")));
214
215 static struct snd_soc_dai_link dm6467_evm_dai[] = {
216 {
217 .name = "TLV320AIC3X",
218 .stream_name = "AIC3X",
219 .init = evm_aic3x_init,
220 .ops = &evm_ops,
221 .dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_CBM_CFM |
222 SND_SOC_DAIFMT_IB_NF,
223 SND_SOC_DAILINK_REG(dm6467_aic3x),
224 },
225 {
226 .name = "McASP",
227 .stream_name = "spdif",
228 .dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_CBM_CFM |
229 SND_SOC_DAIFMT_IB_NF,
230 SND_SOC_DAILINK_REG(dm6467_spdif),
231 },
232 };
233
234 SND_SOC_DAILINK_DEFS(da830,
235 DAILINK_COMP_ARRAY(COMP_CPU("davinci-mcasp.1")),
236 DAILINK_COMP_ARRAY(COMP_CODEC("tlv320aic3x-codec.1-0018",
237 "tlv320aic3x-hifi")),
238 DAILINK_COMP_ARRAY(COMP_PLATFORM("davinci-mcasp.1")));
239
240 static struct snd_soc_dai_link da830_evm_dai = {
241 .name = "TLV320AIC3X",
242 .stream_name = "AIC3X",
243 .init = evm_aic3x_init,
244 .ops = &evm_ops,
245 .dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_CBM_CFM |
246 SND_SOC_DAIFMT_IB_NF,
247 SND_SOC_DAILINK_REG(da830),
248 };
249
250 SND_SOC_DAILINK_DEFS(da850,
251 DAILINK_COMP_ARRAY(COMP_CPU("davinci-mcasp.0")),
252 DAILINK_COMP_ARRAY(COMP_CODEC("tlv320aic3x-codec.1-0018",
253 "tlv320aic3x-hifi")),
254 DAILINK_COMP_ARRAY(COMP_PLATFORM("davinci-mcasp.0")));
255
256 static struct snd_soc_dai_link da850_evm_dai = {
257 .name = "TLV320AIC3X",
258 .stream_name = "AIC3X",
259 .init = evm_aic3x_init,
260 .ops = &evm_ops,
261 .dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_CBM_CFM |
262 SND_SOC_DAIFMT_IB_NF,
263 SND_SOC_DAILINK_REG(da850),
264 };
265
266
267
268
269
270
271
272 static struct snd_soc_card_drvdata_davinci dm6446_snd_soc_card_drvdata = {
273 .sysclk = 12288000,
274 };
275
276 static struct snd_soc_card dm6446_snd_soc_card_evm = {
277 .name = "DaVinci DM6446 EVM",
278 .owner = THIS_MODULE,
279 .dai_link = &dm6446_evm_dai,
280 .num_links = 1,
281 .drvdata = &dm6446_snd_soc_card_drvdata,
282 };
283
284
285
286 static struct snd_soc_card_drvdata_davinci dm355_snd_soc_card_drvdata = {
287 .sysclk = 27000000,
288 };
289
290 static struct snd_soc_card dm355_snd_soc_card_evm = {
291 .name = "DaVinci DM355 EVM",
292 .owner = THIS_MODULE,
293 .dai_link = &dm355_evm_dai,
294 .num_links = 1,
295 .drvdata = &dm355_snd_soc_card_drvdata,
296 };
297
298
299 static struct snd_soc_card_drvdata_davinci dm365_snd_soc_card_drvdata = {
300 .sysclk = 27000000,
301 };
302
303 static struct snd_soc_card dm365_snd_soc_card_evm = {
304 .name = "DaVinci DM365 EVM",
305 .owner = THIS_MODULE,
306 .dai_link = &dm365_evm_dai,
307 .num_links = 1,
308 .drvdata = &dm365_snd_soc_card_drvdata,
309 };
310
311
312 static struct snd_soc_card_drvdata_davinci dm6467_snd_soc_card_drvdata = {
313 .sysclk = 27000000,
314 };
315
316 static struct snd_soc_card dm6467_snd_soc_card_evm = {
317 .name = "DaVinci DM6467 EVM",
318 .owner = THIS_MODULE,
319 .dai_link = dm6467_evm_dai,
320 .num_links = ARRAY_SIZE(dm6467_evm_dai),
321 .drvdata = &dm6467_snd_soc_card_drvdata,
322 };
323
324 static struct snd_soc_card_drvdata_davinci da830_snd_soc_card_drvdata = {
325 .sysclk = 24576000,
326 };
327
328 static struct snd_soc_card da830_snd_soc_card = {
329 .name = "DA830/OMAP-L137 EVM",
330 .owner = THIS_MODULE,
331 .dai_link = &da830_evm_dai,
332 .num_links = 1,
333 .drvdata = &da830_snd_soc_card_drvdata,
334 };
335
336 static struct snd_soc_card_drvdata_davinci da850_snd_soc_card_drvdata = {
337 .sysclk = 24576000,
338 };
339
340 static struct snd_soc_card da850_snd_soc_card = {
341 .name = "DA850/OMAP-L138 EVM",
342 .owner = THIS_MODULE,
343 .dai_link = &da850_evm_dai,
344 .num_links = 1,
345 .drvdata = &da850_snd_soc_card_drvdata,
346 };
347
348 #if defined(CONFIG_OF)
349
350
351
352
353
354 SND_SOC_DAILINK_DEFS(evm,
355 DAILINK_COMP_ARRAY(COMP_EMPTY()),
356 DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "tlv320aic3x-hifi")),
357 DAILINK_COMP_ARRAY(COMP_EMPTY()));
358
359 static struct snd_soc_dai_link evm_dai_tlv320aic3x = {
360 .name = "TLV320AIC3X",
361 .stream_name = "AIC3X",
362 .ops = &evm_ops,
363 .init = evm_aic3x_init,
364 .dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_CBM_CFM |
365 SND_SOC_DAIFMT_IB_NF,
366 SND_SOC_DAILINK_REG(evm),
367 };
368
369 static const struct of_device_id davinci_evm_dt_ids[] = {
370 {
371 .compatible = "ti,da830-evm-audio",
372 .data = (void *) &evm_dai_tlv320aic3x,
373 },
374 { }
375 };
376 MODULE_DEVICE_TABLE(of, davinci_evm_dt_ids);
377
378
379 static struct snd_soc_card evm_soc_card = {
380 .owner = THIS_MODULE,
381 .num_links = 1,
382 };
383
384 static int davinci_evm_probe(struct platform_device *pdev)
385 {
386 struct device_node *np = pdev->dev.of_node;
387 const struct of_device_id *match;
388 struct snd_soc_dai_link *dai;
389 struct snd_soc_card_drvdata_davinci *drvdata = NULL;
390 struct clk *mclk;
391 int ret = 0;
392
393 match = of_match_device(of_match_ptr(davinci_evm_dt_ids), &pdev->dev);
394 if (!match) {
395 dev_err(&pdev->dev, "Error: No device match found\n");
396 return -ENODEV;
397 }
398
399 dai = (struct snd_soc_dai_link *) match->data;
400
401 evm_soc_card.dai_link = dai;
402
403 dai->codecs->of_node = of_parse_phandle(np, "ti,audio-codec", 0);
404 if (!dai->codecs->of_node)
405 return -EINVAL;
406
407 dai->cpus->of_node = of_parse_phandle(np, "ti,mcasp-controller", 0);
408 if (!dai->cpus->of_node)
409 return -EINVAL;
410
411 dai->platforms->of_node = dai->cpus->of_node;
412
413 evm_soc_card.dev = &pdev->dev;
414 ret = snd_soc_of_parse_card_name(&evm_soc_card, "ti,model");
415 if (ret)
416 return ret;
417
418 mclk = devm_clk_get(&pdev->dev, "mclk");
419 if (PTR_ERR(mclk) == -EPROBE_DEFER) {
420 return -EPROBE_DEFER;
421 } else if (IS_ERR(mclk)) {
422 dev_dbg(&pdev->dev, "mclk not found.\n");
423 mclk = NULL;
424 }
425
426 drvdata = devm_kzalloc(&pdev->dev, sizeof(*drvdata), GFP_KERNEL);
427 if (!drvdata)
428 return -ENOMEM;
429
430 drvdata->mclk = mclk;
431
432 ret = of_property_read_u32(np, "ti,codec-clock-rate", &drvdata->sysclk);
433
434 if (ret < 0) {
435 if (!drvdata->mclk) {
436 dev_err(&pdev->dev,
437 "No clock or clock rate defined.\n");
438 return -EINVAL;
439 }
440 drvdata->sysclk = clk_get_rate(drvdata->mclk);
441 } else if (drvdata->mclk) {
442 unsigned int requestd_rate = drvdata->sysclk;
443 clk_set_rate(drvdata->mclk, drvdata->sysclk);
444 drvdata->sysclk = clk_get_rate(drvdata->mclk);
445 if (drvdata->sysclk != requestd_rate)
446 dev_warn(&pdev->dev,
447 "Could not get requested rate %u using %u.\n",
448 requestd_rate, drvdata->sysclk);
449 }
450
451 snd_soc_card_set_drvdata(&evm_soc_card, drvdata);
452 ret = devm_snd_soc_register_card(&pdev->dev, &evm_soc_card);
453
454 if (ret)
455 dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", ret);
456
457 return ret;
458 }
459
460 static struct platform_driver davinci_evm_driver = {
461 .probe = davinci_evm_probe,
462 .driver = {
463 .name = "davinci_evm",
464 .pm = &snd_soc_pm_ops,
465 .of_match_table = of_match_ptr(davinci_evm_dt_ids),
466 },
467 };
468 #endif
469
470 static struct platform_device *evm_snd_device;
471
472 static int __init evm_init(void)
473 {
474 struct snd_soc_card *evm_snd_dev_data;
475 int index;
476 int ret;
477
478
479
480
481
482 #if defined(CONFIG_OF)
483 if (of_have_populated_dt())
484 return platform_driver_register(&davinci_evm_driver);
485 #endif
486
487 if (machine_is_davinci_evm()) {
488 evm_snd_dev_data = &dm6446_snd_soc_card_evm;
489 index = 0;
490 } else if (machine_is_davinci_dm355_evm()) {
491 evm_snd_dev_data = &dm355_snd_soc_card_evm;
492 index = 1;
493 } else if (machine_is_davinci_dm365_evm()) {
494 evm_snd_dev_data = &dm365_snd_soc_card_evm;
495 index = 0;
496 } else if (machine_is_davinci_dm6467_evm()) {
497 evm_snd_dev_data = &dm6467_snd_soc_card_evm;
498 index = 0;
499 } else if (machine_is_davinci_da830_evm()) {
500 evm_snd_dev_data = &da830_snd_soc_card;
501 index = 1;
502 } else if (machine_is_davinci_da850_evm()) {
503 evm_snd_dev_data = &da850_snd_soc_card;
504 index = 0;
505 } else
506 return -EINVAL;
507
508 evm_snd_device = platform_device_alloc("soc-audio", index);
509 if (!evm_snd_device)
510 return -ENOMEM;
511
512 platform_set_drvdata(evm_snd_device, evm_snd_dev_data);
513 ret = platform_device_add(evm_snd_device);
514 if (ret)
515 platform_device_put(evm_snd_device);
516
517 return ret;
518 }
519
520 static void __exit evm_exit(void)
521 {
522 #if defined(CONFIG_OF)
523 if (of_have_populated_dt()) {
524 platform_driver_unregister(&davinci_evm_driver);
525 return;
526 }
527 #endif
528
529 platform_device_unregister(evm_snd_device);
530 }
531
532 module_init(evm_init);
533 module_exit(evm_exit);
534
535 MODULE_AUTHOR("Vladimir Barinov");
536 MODULE_DESCRIPTION("TI DAVINCI EVM ASoC driver");
537 MODULE_LICENSE("GPL");