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1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * ASoC driver for TI DAVINCI EVM platform
4 *
5 * Author: Vladimir Barinov, <vbarinov@embeddedalley.com>
6 * Copyright: (C) 2007 MontaVista Software, Inc., <source@mvista.com>
7 */
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
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 = asoc_substream_to_rtd(substream);
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 = asoc_substream_to_rtd(substream);
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 clk_disable_unprepare(drvdata->mclk);
50}
51
52static int evm_hw_params(struct snd_pcm_substream *substream,
53 struct snd_pcm_hw_params *params)
54{
55 struct snd_soc_pcm_runtime *rtd = asoc_substream_to_rtd(substream);
56 struct snd_soc_dai *codec_dai = asoc_rtd_to_codec(rtd, 0);
57 struct snd_soc_dai *cpu_dai = asoc_rtd_to_cpu(rtd, 0);
58 struct snd_soc_card *soc_card = rtd->card;
59 int ret = 0;
60 unsigned sysclk = ((struct snd_soc_card_drvdata_davinci *)
61 snd_soc_card_get_drvdata(soc_card))->sysclk;
62
63 /* set the codec system clock */
64 ret = snd_soc_dai_set_sysclk(codec_dai, 0, sysclk, SND_SOC_CLOCK_OUT);
65 if (ret < 0)
66 return ret;
67
68 /* set the CPU system clock */
69 ret = snd_soc_dai_set_sysclk(cpu_dai, 0, sysclk, SND_SOC_CLOCK_OUT);
70 if (ret < 0 && ret != -ENOTSUPP)
71 return ret;
72
73 return 0;
74}
75
76static const struct snd_soc_ops evm_ops = {
77 .startup = evm_startup,
78 .shutdown = evm_shutdown,
79 .hw_params = evm_hw_params,
80};
81
82/* davinci-evm machine dapm widgets */
83static const struct snd_soc_dapm_widget aic3x_dapm_widgets[] = {
84 SND_SOC_DAPM_HP("Headphone Jack", NULL),
85 SND_SOC_DAPM_LINE("Line Out", NULL),
86 SND_SOC_DAPM_MIC("Mic Jack", NULL),
87 SND_SOC_DAPM_LINE("Line In", NULL),
88};
89
90/* davinci-evm machine audio_mapnections to the codec pins */
91static const struct snd_soc_dapm_route audio_map[] = {
92 /* Headphone connected to HPLOUT, HPROUT */
93 {"Headphone Jack", NULL, "HPLOUT"},
94 {"Headphone Jack", NULL, "HPROUT"},
95
96 /* Line Out connected to LLOUT, RLOUT */
97 {"Line Out", NULL, "LLOUT"},
98 {"Line Out", NULL, "RLOUT"},
99
100 /* Mic connected to (MIC3L | MIC3R) */
101 {"MIC3L", NULL, "Mic Bias"},
102 {"MIC3R", NULL, "Mic Bias"},
103 {"Mic Bias", NULL, "Mic Jack"},
104
105 /* Line In connected to (LINE1L | LINE2L), (LINE1R | LINE2R) */
106 {"LINE1L", NULL, "Line In"},
107 {"LINE2L", NULL, "Line In"},
108 {"LINE1R", NULL, "Line In"},
109 {"LINE2R", NULL, "Line In"},
110};
111
112/* Logic for a aic3x as connected on a davinci-evm */
113static int evm_aic3x_init(struct snd_soc_pcm_runtime *rtd)
114{
115 struct snd_soc_card *card = rtd->card;
116 struct device_node *np = card->dev->of_node;
117 int ret;
118
119 /* Add davinci-evm specific widgets */
120 snd_soc_dapm_new_controls(&card->dapm, aic3x_dapm_widgets,
121 ARRAY_SIZE(aic3x_dapm_widgets));
122
123 if (np) {
124 ret = snd_soc_of_parse_audio_routing(card, "ti,audio-routing");
125 if (ret)
126 return ret;
127 } else {
128 /* Set up davinci-evm specific audio path audio_map */
129 snd_soc_dapm_add_routes(&card->dapm, audio_map,
130 ARRAY_SIZE(audio_map));
131 }
132
133 /* not connected */
134 snd_soc_dapm_nc_pin(&card->dapm, "MONO_LOUT");
135 snd_soc_dapm_nc_pin(&card->dapm, "HPLCOM");
136 snd_soc_dapm_nc_pin(&card->dapm, "HPRCOM");
137
138 return 0;
139}
140
141/* davinci-evm digital audio interface glue - connects codec <--> CPU */
142SND_SOC_DAILINK_DEFS(dm6446,
143 DAILINK_COMP_ARRAY(COMP_CPU("davinci-mcbsp")),
144 DAILINK_COMP_ARRAY(COMP_CODEC("tlv320aic3x-codec.1-001b",
145 "tlv320aic3x-hifi")),
146 DAILINK_COMP_ARRAY(COMP_PLATFORM("davinci-mcbsp")));
147
148static struct snd_soc_dai_link dm6446_evm_dai = {
149 .name = "TLV320AIC3X",
150 .stream_name = "AIC3X",
151 .init = evm_aic3x_init,
152 .ops = &evm_ops,
153 .dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_CBM_CFM |
154 SND_SOC_DAIFMT_IB_NF,
155 SND_SOC_DAILINK_REG(dm6446),
156};
157
158SND_SOC_DAILINK_DEFS(dm355,
159 DAILINK_COMP_ARRAY(COMP_CPU("davinci-mcbsp.1")),
160 DAILINK_COMP_ARRAY(COMP_CODEC("tlv320aic3x-codec.1-001b",
161 "tlv320aic3x-hifi")),
162 DAILINK_COMP_ARRAY(COMP_PLATFORM("davinci-mcbsp.1")));
163
164static struct snd_soc_dai_link dm355_evm_dai = {
165 .name = "TLV320AIC3X",
166 .stream_name = "AIC3X",
167 .init = evm_aic3x_init,
168 .ops = &evm_ops,
169 .dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_CBM_CFM |
170 SND_SOC_DAIFMT_IB_NF,
171 SND_SOC_DAILINK_REG(dm355),
172};
173
174#ifdef CONFIG_SND_SOC_DM365_AIC3X_CODEC
175SND_SOC_DAILINK_DEFS(dm365,
176 DAILINK_COMP_ARRAY(COMP_CPU("davinci-mcbsp")),
177 DAILINK_COMP_ARRAY(COMP_CODEC("tlv320aic3x-codec.1-0018",
178 "tlv320aic3x-hifi")),
179 DAILINK_COMP_ARRAY(COMP_PLATFORM("davinci-mcbsp")));
180#elif defined(CONFIG_SND_SOC_DM365_VOICE_CODEC)
181SND_SOC_DAILINK_DEFS(dm365,
182 DAILINK_COMP_ARRAY(COMP_CPU("davinci-vcif")),
183 DAILINK_COMP_ARRAY(COMP_CODEC("cq93vc-codec", "cq93vc-hifi")),
184 DAILINK_COMP_ARRAY(COMP_PLATFORM("davinci-vcif")));
185#endif
186
187static struct snd_soc_dai_link dm365_evm_dai = {
188#ifdef CONFIG_SND_SOC_DM365_AIC3X_CODEC
189 .name = "TLV320AIC3X",
190 .stream_name = "AIC3X",
191 .init = evm_aic3x_init,
192 .ops = &evm_ops,
193 .dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_CBM_CFM |
194 SND_SOC_DAIFMT_IB_NF,
195 SND_SOC_DAILINK_REG(dm365),
196#elif defined(CONFIG_SND_SOC_DM365_VOICE_CODEC)
197 .name = "Voice Codec - CQ93VC",
198 .stream_name = "CQ93",
199 SND_SOC_DAILINK_REG(dm365),
200#endif
201};
202
203SND_SOC_DAILINK_DEFS(dm6467_aic3x,
204 DAILINK_COMP_ARRAY(COMP_CPU("davinci-mcasp.0")),
205 DAILINK_COMP_ARRAY(COMP_CODEC("tlv320aic3x-codec.0-001a",
206 "tlv320aic3x-hifi")),
207 DAILINK_COMP_ARRAY(COMP_PLATFORM("davinci-mcasp.0")));
208
209SND_SOC_DAILINK_DEFS(dm6467_spdif,
210 DAILINK_COMP_ARRAY(COMP_CPU("davinci-mcasp.1")),
211 DAILINK_COMP_ARRAY(COMP_CODEC("spdif_dit", "dit-hifi")),
212 DAILINK_COMP_ARRAY(COMP_PLATFORM("davinci-mcasp.1")));
213
214static struct snd_soc_dai_link dm6467_evm_dai[] = {
215 {
216 .name = "TLV320AIC3X",
217 .stream_name = "AIC3X",
218 .init = evm_aic3x_init,
219 .ops = &evm_ops,
220 .dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_CBM_CFM |
221 SND_SOC_DAIFMT_IB_NF,
222 SND_SOC_DAILINK_REG(dm6467_aic3x),
223 },
224 {
225 .name = "McASP",
226 .stream_name = "spdif",
227 .dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_CBM_CFM |
228 SND_SOC_DAIFMT_IB_NF,
229 SND_SOC_DAILINK_REG(dm6467_spdif),
230 },
231};
232
233SND_SOC_DAILINK_DEFS(da830,
234 DAILINK_COMP_ARRAY(COMP_CPU("davinci-mcasp.1")),
235 DAILINK_COMP_ARRAY(COMP_CODEC("tlv320aic3x-codec.1-0018",
236 "tlv320aic3x-hifi")),
237 DAILINK_COMP_ARRAY(COMP_PLATFORM("davinci-mcasp.1")));
238
239static struct snd_soc_dai_link da830_evm_dai = {
240 .name = "TLV320AIC3X",
241 .stream_name = "AIC3X",
242 .init = evm_aic3x_init,
243 .ops = &evm_ops,
244 .dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_CBM_CFM |
245 SND_SOC_DAIFMT_IB_NF,
246 SND_SOC_DAILINK_REG(da830),
247};
248
249SND_SOC_DAILINK_DEFS(da850,
250 DAILINK_COMP_ARRAY(COMP_CPU("davinci-mcasp.0")),
251 DAILINK_COMP_ARRAY(COMP_CODEC("tlv320aic3x-codec.1-0018",
252 "tlv320aic3x-hifi")),
253 DAILINK_COMP_ARRAY(COMP_PLATFORM("davinci-mcasp.0")));
254
255static struct snd_soc_dai_link da850_evm_dai = {
256 .name = "TLV320AIC3X",
257 .stream_name = "AIC3X",
258 .init = evm_aic3x_init,
259 .ops = &evm_ops,
260 .dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_CBM_CFM |
261 SND_SOC_DAIFMT_IB_NF,
262 SND_SOC_DAILINK_REG(da850),
263};
264
265/* davinci dm6446 evm audio machine driver */
266/*
267 * ASP0 in DM6446 EVM is clocked by U55, as configured by
268 * board-dm644x-evm.c using GPIOs from U18. There are six
269 * options; here we "know" we use a 48 KHz sample rate.
270 */
271static struct snd_soc_card_drvdata_davinci dm6446_snd_soc_card_drvdata = {
272 .sysclk = 12288000,
273};
274
275static struct snd_soc_card dm6446_snd_soc_card_evm = {
276 .name = "DaVinci DM6446 EVM",
277 .owner = THIS_MODULE,
278 .dai_link = &dm6446_evm_dai,
279 .num_links = 1,
280 .drvdata = &dm6446_snd_soc_card_drvdata,
281};
282
283/* davinci dm355 evm audio machine driver */
284/* ASP1 on DM355 EVM is clocked by an external oscillator */
285static struct snd_soc_card_drvdata_davinci dm355_snd_soc_card_drvdata = {
286 .sysclk = 27000000,
287};
288
289static struct snd_soc_card dm355_snd_soc_card_evm = {
290 .name = "DaVinci DM355 EVM",
291 .owner = THIS_MODULE,
292 .dai_link = &dm355_evm_dai,
293 .num_links = 1,
294 .drvdata = &dm355_snd_soc_card_drvdata,
295};
296
297/* davinci dm365 evm audio machine driver */
298static struct snd_soc_card_drvdata_davinci dm365_snd_soc_card_drvdata = {
299 .sysclk = 27000000,
300};
301
302static struct snd_soc_card dm365_snd_soc_card_evm = {
303 .name = "DaVinci DM365 EVM",
304 .owner = THIS_MODULE,
305 .dai_link = &dm365_evm_dai,
306 .num_links = 1,
307 .drvdata = &dm365_snd_soc_card_drvdata,
308};
309
310/* davinci dm6467 evm audio machine driver */
311static struct snd_soc_card_drvdata_davinci dm6467_snd_soc_card_drvdata = {
312 .sysclk = 27000000,
313};
314
315static struct snd_soc_card dm6467_snd_soc_card_evm = {
316 .name = "DaVinci DM6467 EVM",
317 .owner = THIS_MODULE,
318 .dai_link = dm6467_evm_dai,
319 .num_links = ARRAY_SIZE(dm6467_evm_dai),
320 .drvdata = &dm6467_snd_soc_card_drvdata,
321};
322
323static struct snd_soc_card_drvdata_davinci da830_snd_soc_card_drvdata = {
324 .sysclk = 24576000,
325};
326
327static struct snd_soc_card da830_snd_soc_card = {
328 .name = "DA830/OMAP-L137 EVM",
329 .owner = THIS_MODULE,
330 .dai_link = &da830_evm_dai,
331 .num_links = 1,
332 .drvdata = &da830_snd_soc_card_drvdata,
333};
334
335static struct snd_soc_card_drvdata_davinci da850_snd_soc_card_drvdata = {
336 .sysclk = 24576000,
337};
338
339static struct snd_soc_card da850_snd_soc_card = {
340 .name = "DA850/OMAP-L138 EVM",
341 .owner = THIS_MODULE,
342 .dai_link = &da850_evm_dai,
343 .num_links = 1,
344 .drvdata = &da850_snd_soc_card_drvdata,
345};
346
347#if defined(CONFIG_OF)
348
349/*
350 * The struct is used as place holder. It will be completely
351 * filled with data from dt node.
352 */
353SND_SOC_DAILINK_DEFS(evm,
354 DAILINK_COMP_ARRAY(COMP_EMPTY()),
355 DAILINK_COMP_ARRAY(COMP_CODEC(NULL, "tlv320aic3x-hifi")),
356 DAILINK_COMP_ARRAY(COMP_EMPTY()));
357
358static struct snd_soc_dai_link evm_dai_tlv320aic3x = {
359 .name = "TLV320AIC3X",
360 .stream_name = "AIC3X",
361 .ops = &evm_ops,
362 .init = evm_aic3x_init,
363 .dai_fmt = SND_SOC_DAIFMT_DSP_B | SND_SOC_DAIFMT_CBM_CFM |
364 SND_SOC_DAIFMT_IB_NF,
365 SND_SOC_DAILINK_REG(evm),
366};
367
368static const struct of_device_id davinci_evm_dt_ids[] = {
369 {
370 .compatible = "ti,da830-evm-audio",
371 .data = (void *) &evm_dai_tlv320aic3x,
372 },
373 { /* sentinel */ }
374};
375MODULE_DEVICE_TABLE(of, davinci_evm_dt_ids);
376
377/* davinci evm audio machine driver */
378static struct snd_soc_card evm_soc_card = {
379 .owner = THIS_MODULE,
380 .num_links = 1,
381};
382
383static int davinci_evm_probe(struct platform_device *pdev)
384{
385 struct device_node *np = pdev->dev.of_node;
386 const struct of_device_id *match;
387 struct snd_soc_dai_link *dai;
388 struct snd_soc_card_drvdata_davinci *drvdata = NULL;
389 struct clk *mclk;
390 int ret = 0;
391
392 match = of_match_device(of_match_ptr(davinci_evm_dt_ids), &pdev->dev);
393 if (!match) {
394 dev_err(&pdev->dev, "Error: No device match found\n");
395 return -ENODEV;
396 }
397
398 dai = (struct snd_soc_dai_link *) match->data;
399
400 evm_soc_card.dai_link = dai;
401
402 dai->codecs->of_node = of_parse_phandle(np, "ti,audio-codec", 0);
403 if (!dai->codecs->of_node)
404 return -EINVAL;
405
406 dai->cpus->of_node = of_parse_phandle(np, "ti,mcasp-controller", 0);
407 if (!dai->cpus->of_node)
408 return -EINVAL;
409
410 dai->platforms->of_node = dai->cpus->of_node;
411
412 evm_soc_card.dev = &pdev->dev;
413 ret = snd_soc_of_parse_card_name(&evm_soc_card, "ti,model");
414 if (ret)
415 return ret;
416
417 mclk = devm_clk_get(&pdev->dev, "mclk");
418 if (PTR_ERR(mclk) == -EPROBE_DEFER) {
419 return -EPROBE_DEFER;
420 } else if (IS_ERR(mclk)) {
421 dev_dbg(&pdev->dev, "mclk not found.\n");
422 mclk = NULL;
423 }
424
425 drvdata = devm_kzalloc(&pdev->dev, sizeof(*drvdata), GFP_KERNEL);
426 if (!drvdata)
427 return -ENOMEM;
428
429 drvdata->mclk = mclk;
430
431 ret = of_property_read_u32(np, "ti,codec-clock-rate", &drvdata->sysclk);
432
433 if (ret < 0) {
434 if (!drvdata->mclk) {
435 dev_err(&pdev->dev,
436 "No clock or clock rate defined.\n");
437 return -EINVAL;
438 }
439 drvdata->sysclk = clk_get_rate(drvdata->mclk);
440 } else if (drvdata->mclk) {
441 unsigned int requestd_rate = drvdata->sysclk;
442 clk_set_rate(drvdata->mclk, drvdata->sysclk);
443 drvdata->sysclk = clk_get_rate(drvdata->mclk);
444 if (drvdata->sysclk != requestd_rate)
445 dev_warn(&pdev->dev,
446 "Could not get requested rate %u using %u.\n",
447 requestd_rate, drvdata->sysclk);
448 }
449
450 snd_soc_card_set_drvdata(&evm_soc_card, drvdata);
451 ret = devm_snd_soc_register_card(&pdev->dev, &evm_soc_card);
452
453 if (ret)
454 dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", ret);
455
456 return ret;
457}
458
459static struct platform_driver davinci_evm_driver = {
460 .probe = davinci_evm_probe,
461 .driver = {
462 .name = "davinci_evm",
463 .pm = &snd_soc_pm_ops,
464 .of_match_table = of_match_ptr(davinci_evm_dt_ids),
465 },
466};
467#endif
468
469static struct platform_device *evm_snd_device;
470
471static int __init evm_init(void)
472{
473 struct snd_soc_card *evm_snd_dev_data;
474 int index;
475 int ret;
476
477 /*
478 * If dtb is there, the devices will be created dynamically.
479 * Only register platfrom driver structure.
480 */
481#if defined(CONFIG_OF)
482 if (of_have_populated_dt())
483 return platform_driver_register(&davinci_evm_driver);
484#endif
485
486 if (machine_is_davinci_evm()) {
487 evm_snd_dev_data = &dm6446_snd_soc_card_evm;
488 index = 0;
489 } else if (machine_is_davinci_dm355_evm()) {
490 evm_snd_dev_data = &dm355_snd_soc_card_evm;
491 index = 1;
492 } else if (machine_is_davinci_dm365_evm()) {
493 evm_snd_dev_data = &dm365_snd_soc_card_evm;
494 index = 0;
495 } else if (machine_is_davinci_dm6467_evm()) {
496 evm_snd_dev_data = &dm6467_snd_soc_card_evm;
497 index = 0;
498 } else if (machine_is_davinci_da830_evm()) {
499 evm_snd_dev_data = &da830_snd_soc_card;
500 index = 1;
501 } else if (machine_is_davinci_da850_evm()) {
502 evm_snd_dev_data = &da850_snd_soc_card;
503 index = 0;
504 } else
505 return -EINVAL;
506
507 evm_snd_device = platform_device_alloc("soc-audio", index);
508 if (!evm_snd_device)
509 return -ENOMEM;
510
511 platform_set_drvdata(evm_snd_device, evm_snd_dev_data);
512 ret = platform_device_add(evm_snd_device);
513 if (ret)
514 platform_device_put(evm_snd_device);
515
516 return ret;
517}
518
519static void __exit evm_exit(void)
520{
521#if defined(CONFIG_OF)
522 if (of_have_populated_dt()) {
523 platform_driver_unregister(&davinci_evm_driver);
524 return;
525 }
526#endif
527
528 platform_device_unregister(evm_snd_device);
529}
530
531module_init(evm_init);
532module_exit(evm_exit);
533
534MODULE_AUTHOR("Vladimir Barinov");
535MODULE_DESCRIPTION("TI DAVINCI EVM ASoC driver");
536MODULE_LICENSE("GPL");
1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * ASoC driver for TI DAVINCI EVM platform
4 *
5 * Author: Vladimir Barinov, <vbarinov@embeddedalley.com>
6 * Copyright: (C) 2007 MontaVista Software, Inc., <source@mvista.com>
7 */
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
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 /* set the codec system clock */
65 ret = snd_soc_dai_set_sysclk(codec_dai, 0, sysclk, SND_SOC_CLOCK_OUT);
66 if (ret < 0)
67 return ret;
68
69 /* set the CPU system clock */
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
77static struct snd_soc_ops evm_ops = {
78 .startup = evm_startup,
79 .shutdown = evm_shutdown,
80 .hw_params = evm_hw_params,
81};
82
83/* davinci-evm machine dapm widgets */
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/* davinci-evm machine audio_mapnections to the codec pins */
92static const struct snd_soc_dapm_route audio_map[] = {
93 /* Headphone connected to HPLOUT, HPROUT */
94 {"Headphone Jack", NULL, "HPLOUT"},
95 {"Headphone Jack", NULL, "HPROUT"},
96
97 /* Line Out connected to LLOUT, RLOUT */
98 {"Line Out", NULL, "LLOUT"},
99 {"Line Out", NULL, "RLOUT"},
100
101 /* Mic connected to (MIC3L | MIC3R) */
102 {"MIC3L", NULL, "Mic Bias"},
103 {"MIC3R", NULL, "Mic Bias"},
104 {"Mic Bias", NULL, "Mic Jack"},
105
106 /* Line In connected to (LINE1L | LINE2L), (LINE1R | LINE2R) */
107 {"LINE1L", NULL, "Line In"},
108 {"LINE2L", NULL, "Line In"},
109 {"LINE1R", NULL, "Line In"},
110 {"LINE2R", NULL, "Line In"},
111};
112
113/* Logic for a aic3x as connected on a davinci-evm */
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 /* Add davinci-evm specific widgets */
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 /* Set up davinci-evm specific audio path audio_map */
130 snd_soc_dapm_add_routes(&card->dapm, audio_map,
131 ARRAY_SIZE(audio_map));
132 }
133
134 /* not connected */
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/* davinci-evm digital audio interface glue - connects codec <--> CPU */
143SND_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
149static 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
159SND_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
165static 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
176SND_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)
182SND_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
188static 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
204SND_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
210SND_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
215static 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
234SND_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
240static 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
250SND_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
256static 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/* davinci dm6446 evm audio machine driver */
267/*
268 * ASP0 in DM6446 EVM is clocked by U55, as configured by
269 * board-dm644x-evm.c using GPIOs from U18. There are six
270 * options; here we "know" we use a 48 KHz sample rate.
271 */
272static struct snd_soc_card_drvdata_davinci dm6446_snd_soc_card_drvdata = {
273 .sysclk = 12288000,
274};
275
276static 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/* davinci dm355 evm audio machine driver */
285/* ASP1 on DM355 EVM is clocked by an external oscillator */
286static struct snd_soc_card_drvdata_davinci dm355_snd_soc_card_drvdata = {
287 .sysclk = 27000000,
288};
289
290static 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/* davinci dm365 evm audio machine driver */
299static struct snd_soc_card_drvdata_davinci dm365_snd_soc_card_drvdata = {
300 .sysclk = 27000000,
301};
302
303static 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/* davinci dm6467 evm audio machine driver */
312static struct snd_soc_card_drvdata_davinci dm6467_snd_soc_card_drvdata = {
313 .sysclk = 27000000,
314};
315
316static 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
324static struct snd_soc_card_drvdata_davinci da830_snd_soc_card_drvdata = {
325 .sysclk = 24576000,
326};
327
328static 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
336static struct snd_soc_card_drvdata_davinci da850_snd_soc_card_drvdata = {
337 .sysclk = 24576000,
338};
339
340static 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 * The struct is used as place holder. It will be completely
352 * filled with data from dt node.
353 */
354SND_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
359static 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
369static const struct of_device_id davinci_evm_dt_ids[] = {
370 {
371 .compatible = "ti,da830-evm-audio",
372 .data = (void *) &evm_dai_tlv320aic3x,
373 },
374 { /* sentinel */ }
375};
376MODULE_DEVICE_TABLE(of, davinci_evm_dt_ids);
377
378/* davinci evm audio machine driver */
379static struct snd_soc_card evm_soc_card = {
380 .owner = THIS_MODULE,
381 .num_links = 1,
382};
383
384static 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
460static 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
470static struct platform_device *evm_snd_device;
471
472static int __init evm_init(void)
473{
474 struct snd_soc_card *evm_snd_dev_data;
475 int index;
476 int ret;
477
478 /*
479 * If dtb is there, the devices will be created dynamically.
480 * Only register platfrom driver structure.
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
520static 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
532module_init(evm_init);
533module_exit(evm_exit);
534
535MODULE_AUTHOR("Vladimir Barinov");
536MODULE_DESCRIPTION("TI DAVINCI EVM ASoC driver");
537MODULE_LICENSE("GPL");