2 * ASoC driver for TI DAVINCI EVM platform
4 * Author: Vladimir Barinov, <vbarinov@embeddedalley.com>
5 * Copyright: (C) 2007 MontaVista Software, Inc., <source@mvista.com>
7 * This program is free software; you can redistribute it and/or modify
8 * it under the terms of the GNU General Public License version 2 as
9 * published by the Free Software Foundation.
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/platform_data/edma.h>
18 #include <linux/i2c.h>
19 #include <linux/of_platform.h>
20 #include <sound/core.h>
21 #include <sound/pcm.h>
22 #include <sound/soc.h>
25 #include <asm/mach-types.h>
27 #include <linux/edma.h>
29 #include "davinci-pcm.h"
30 #include "davinci-i2s.h"
31 #include "davinci-mcasp.h"
33 struct snd_soc_card_drvdata_davinci {
37 #define AUDIO_FORMAT (SND_SOC_DAIFMT_DSP_B | \
38 SND_SOC_DAIFMT_CBM_CFM | SND_SOC_DAIFMT_IB_NF)
39 static int evm_hw_params(struct snd_pcm_substream *substream,
40 struct snd_pcm_hw_params *params)
42 struct snd_soc_pcm_runtime *rtd = substream->private_data;
43 struct snd_soc_dai *codec_dai = rtd->codec_dai;
44 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
45 struct snd_soc_codec *codec = rtd->codec;
46 struct snd_soc_card *soc_card = codec->card;
48 unsigned sysclk = ((struct snd_soc_card_drvdata_davinci *)
49 snd_soc_card_get_drvdata(soc_card))->sysclk;
51 /* set codec DAI configuration */
52 ret = snd_soc_dai_set_fmt(codec_dai, AUDIO_FORMAT);
56 /* set cpu DAI configuration */
57 ret = snd_soc_dai_set_fmt(cpu_dai, AUDIO_FORMAT);
61 /* set the codec system clock */
62 ret = snd_soc_dai_set_sysclk(codec_dai, 0, sysclk, SND_SOC_CLOCK_OUT);
66 /* set the CPU system clock */
67 ret = snd_soc_dai_set_sysclk(cpu_dai, 0, sysclk, SND_SOC_CLOCK_OUT);
74 static int evm_spdif_hw_params(struct snd_pcm_substream *substream,
75 struct snd_pcm_hw_params *params)
77 struct snd_soc_pcm_runtime *rtd = substream->private_data;
78 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
80 /* set cpu DAI configuration */
81 return snd_soc_dai_set_fmt(cpu_dai, AUDIO_FORMAT);
84 static struct snd_soc_ops evm_ops = {
85 .hw_params = evm_hw_params,
88 static struct snd_soc_ops evm_spdif_ops = {
89 .hw_params = evm_spdif_hw_params,
92 /* davinci-evm machine dapm widgets */
93 static const struct snd_soc_dapm_widget aic3x_dapm_widgets[] = {
94 SND_SOC_DAPM_HP("Headphone Jack", NULL),
95 SND_SOC_DAPM_LINE("Line Out", NULL),
96 SND_SOC_DAPM_MIC("Mic Jack", NULL),
97 SND_SOC_DAPM_LINE("Line In", NULL),
100 /* davinci-evm machine audio_mapnections to the codec pins */
101 static const struct snd_soc_dapm_route audio_map[] = {
102 /* Headphone connected to HPLOUT, HPROUT */
103 {"Headphone Jack", NULL, "HPLOUT"},
104 {"Headphone Jack", NULL, "HPROUT"},
106 /* Line Out connected to LLOUT, RLOUT */
107 {"Line Out", NULL, "LLOUT"},
108 {"Line Out", NULL, "RLOUT"},
110 /* Mic connected to (MIC3L | MIC3R) */
111 {"MIC3L", NULL, "Mic Bias"},
112 {"MIC3R", NULL, "Mic Bias"},
113 {"Mic Bias", NULL, "Mic Jack"},
115 /* Line In connected to (LINE1L | LINE2L), (LINE1R | LINE2R) */
116 {"LINE1L", NULL, "Line In"},
117 {"LINE2L", NULL, "Line In"},
118 {"LINE1R", NULL, "Line In"},
119 {"LINE2R", NULL, "Line In"},
122 /* Logic for a aic3x as connected on a davinci-evm */
123 static int evm_aic3x_init(struct snd_soc_pcm_runtime *rtd)
125 struct snd_soc_codec *codec = rtd->codec;
126 struct snd_soc_dapm_context *dapm = &codec->dapm;
127 struct device_node *np = codec->card->dev->of_node;
130 /* Add davinci-evm specific widgets */
131 snd_soc_dapm_new_controls(dapm, aic3x_dapm_widgets,
132 ARRAY_SIZE(aic3x_dapm_widgets));
135 ret = snd_soc_of_parse_audio_routing(codec->card,
140 /* Set up davinci-evm specific audio path audio_map */
141 snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
145 snd_soc_dapm_disable_pin(dapm, "MONO_LOUT");
146 snd_soc_dapm_disable_pin(dapm, "HPLCOM");
147 snd_soc_dapm_disable_pin(dapm, "HPRCOM");
149 /* always connected */
150 snd_soc_dapm_enable_pin(dapm, "Headphone Jack");
151 snd_soc_dapm_enable_pin(dapm, "Line Out");
152 snd_soc_dapm_enable_pin(dapm, "Mic Jack");
153 snd_soc_dapm_enable_pin(dapm, "Line In");
158 /* davinci-evm digital audio interface glue - connects codec <--> CPU */
159 static struct snd_soc_dai_link dm6446_evm_dai = {
160 .name = "TLV320AIC3X",
161 .stream_name = "AIC3X",
162 .cpu_dai_name = "davinci-mcbsp",
163 .codec_dai_name = "tlv320aic3x-hifi",
164 .codec_name = "tlv320aic3x-codec.1-001b",
165 .platform_name = "davinci-mcbsp",
166 .init = evm_aic3x_init,
170 static struct snd_soc_dai_link dm355_evm_dai = {
171 .name = "TLV320AIC3X",
172 .stream_name = "AIC3X",
173 .cpu_dai_name = "davinci-mcbsp.1",
174 .codec_dai_name = "tlv320aic3x-hifi",
175 .codec_name = "tlv320aic3x-codec.1-001b",
176 .platform_name = "davinci-mcbsp.1",
177 .init = evm_aic3x_init,
181 static struct snd_soc_dai_link dm365_evm_dai = {
182 #ifdef CONFIG_SND_DM365_AIC3X_CODEC
183 .name = "TLV320AIC3X",
184 .stream_name = "AIC3X",
185 .cpu_dai_name = "davinci-mcbsp",
186 .codec_dai_name = "tlv320aic3x-hifi",
187 .init = evm_aic3x_init,
188 .codec_name = "tlv320aic3x-codec.1-0018",
190 .platform_name = "davinci-mcbsp",
191 #elif defined(CONFIG_SND_DM365_VOICE_CODEC)
192 .name = "Voice Codec - CQ93VC",
193 .stream_name = "CQ93",
194 .cpu_dai_name = "davinci-vcif",
195 .codec_dai_name = "cq93vc-hifi",
196 .codec_name = "cq93vc-codec",
197 .platform_name = "davinci-vcif",
201 static struct snd_soc_dai_link dm6467_evm_dai[] = {
203 .name = "TLV320AIC3X",
204 .stream_name = "AIC3X",
205 .cpu_dai_name= "davinci-mcasp.0",
206 .codec_dai_name = "tlv320aic3x-hifi",
207 .platform_name = "davinci-mcasp.0",
208 .codec_name = "tlv320aic3x-codec.0-001a",
209 .init = evm_aic3x_init,
214 .stream_name = "spdif",
215 .cpu_dai_name= "davinci-mcasp.1",
216 .codec_dai_name = "dit-hifi",
217 .codec_name = "spdif_dit",
218 .platform_name = "davinci-mcasp.1",
219 .ops = &evm_spdif_ops,
223 static struct snd_soc_dai_link da830_evm_dai = {
224 .name = "TLV320AIC3X",
225 .stream_name = "AIC3X",
226 .cpu_dai_name = "davinci-mcasp.1",
227 .codec_dai_name = "tlv320aic3x-hifi",
228 .codec_name = "tlv320aic3x-codec.1-0018",
229 .platform_name = "davinci-mcasp.1",
230 .init = evm_aic3x_init,
234 static struct snd_soc_dai_link da850_evm_dai = {
235 .name = "TLV320AIC3X",
236 .stream_name = "AIC3X",
237 .cpu_dai_name= "davinci-mcasp.0",
238 .codec_dai_name = "tlv320aic3x-hifi",
239 .codec_name = "tlv320aic3x-codec.1-0018",
240 .platform_name = "davinci-mcasp.0",
241 .init = evm_aic3x_init,
245 /* davinci dm6446 evm audio machine driver */
247 * ASP0 in DM6446 EVM is clocked by U55, as configured by
248 * board-dm644x-evm.c using GPIOs from U18. There are six
249 * options; here we "know" we use a 48 KHz sample rate.
251 static struct snd_soc_card_drvdata_davinci dm6446_snd_soc_card_drvdata = {
255 static struct snd_soc_card dm6446_snd_soc_card_evm = {
256 .name = "DaVinci DM6446 EVM",
257 .owner = THIS_MODULE,
258 .dai_link = &dm6446_evm_dai,
260 .drvdata = &dm6446_snd_soc_card_drvdata,
263 /* davinci dm355 evm audio machine driver */
264 /* ASP1 on DM355 EVM is clocked by an external oscillator */
265 static struct snd_soc_card_drvdata_davinci dm355_snd_soc_card_drvdata = {
269 static struct snd_soc_card dm355_snd_soc_card_evm = {
270 .name = "DaVinci DM355 EVM",
271 .owner = THIS_MODULE,
272 .dai_link = &dm355_evm_dai,
274 .drvdata = &dm355_snd_soc_card_drvdata,
277 /* davinci dm365 evm audio machine driver */
278 static struct snd_soc_card_drvdata_davinci dm365_snd_soc_card_drvdata = {
282 static struct snd_soc_card dm365_snd_soc_card_evm = {
283 .name = "DaVinci DM365 EVM",
284 .owner = THIS_MODULE,
285 .dai_link = &dm365_evm_dai,
287 .drvdata = &dm365_snd_soc_card_drvdata,
290 /* davinci dm6467 evm audio machine driver */
291 static struct snd_soc_card_drvdata_davinci dm6467_snd_soc_card_drvdata = {
295 static 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,
303 static struct snd_soc_card_drvdata_davinci da830_snd_soc_card_drvdata = {
307 static struct snd_soc_card da830_snd_soc_card = {
308 .name = "DA830/OMAP-L137 EVM",
309 .owner = THIS_MODULE,
310 .dai_link = &da830_evm_dai,
312 .drvdata = &da830_snd_soc_card_drvdata,
315 static struct snd_soc_card_drvdata_davinci da850_snd_soc_card_drvdata = {
319 static struct snd_soc_card da850_snd_soc_card = {
320 .name = "DA850/OMAP-L138 EVM",
321 .owner = THIS_MODULE,
322 .dai_link = &da850_evm_dai,
324 .drvdata = &da850_snd_soc_card_drvdata,
327 #if defined(CONFIG_OF)
330 * The struct is used as place holder. It will be completely
331 * filled with data from dt node.
333 static struct snd_soc_dai_link evm_dai_tlv320aic3x = {
334 .name = "TLV320AIC3X",
335 .stream_name = "AIC3X",
336 .codec_dai_name = "tlv320aic3x-hifi",
338 .init = evm_aic3x_init,
341 static const struct of_device_id davinci_evm_dt_ids[] = {
343 .compatible = "ti,da830-evm-audio",
344 .data = (void *) &evm_dai_tlv320aic3x,
348 MODULE_DEVICE_TABLE(of, davinci_evm_dt_ids);
350 /* davinci evm audio machine driver */
351 static struct snd_soc_card evm_soc_card = {
352 .owner = THIS_MODULE,
356 static int davinci_evm_probe(struct platform_device *pdev)
358 struct device_node *np = pdev->dev.of_node;
359 const struct of_device_id *match =
360 of_match_device(of_match_ptr(davinci_evm_dt_ids), &pdev->dev);
361 struct snd_soc_dai_link *dai = (struct snd_soc_dai_link *) match->data;
362 struct snd_soc_card_drvdata_davinci *drvdata = NULL;
365 evm_soc_card.dai_link = dai;
367 dai->codec_of_node = of_parse_phandle(np, "ti,audio-codec", 0);
368 if (!dai->codec_of_node)
371 dai->cpu_of_node = of_parse_phandle(np, "ti,mcasp-controller", 0);
372 if (!dai->cpu_of_node)
375 dai->platform_of_node = dai->cpu_of_node;
377 evm_soc_card.dev = &pdev->dev;
378 ret = snd_soc_of_parse_card_name(&evm_soc_card, "ti,model");
382 drvdata = devm_kzalloc(&pdev->dev, sizeof(*drvdata), GFP_KERNEL);
386 ret = of_property_read_u32(np, "ti,codec-clock-rate", &drvdata->sysclk);
390 snd_soc_card_set_drvdata(&evm_soc_card, drvdata);
391 ret = devm_snd_soc_register_card(&pdev->dev, &evm_soc_card);
394 dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n", ret);
399 static int davinci_evm_remove(struct platform_device *pdev)
401 struct snd_soc_card *card = platform_get_drvdata(pdev);
403 snd_soc_unregister_card(card);
408 static struct platform_driver davinci_evm_driver = {
409 .probe = davinci_evm_probe,
410 .remove = davinci_evm_remove,
412 .name = "davinci_evm",
413 .owner = THIS_MODULE,
414 .of_match_table = of_match_ptr(davinci_evm_dt_ids),
419 static struct platform_device *evm_snd_device;
421 static int __init evm_init(void)
423 struct snd_soc_card *evm_snd_dev_data;
428 * If dtb is there, the devices will be created dynamically.
429 * Only register platfrom driver structure.
431 #if defined(CONFIG_OF)
432 if (of_have_populated_dt())
433 return platform_driver_register(&davinci_evm_driver);
436 if (machine_is_davinci_evm()) {
437 evm_snd_dev_data = &dm6446_snd_soc_card_evm;
439 } else if (machine_is_davinci_dm355_evm()) {
440 evm_snd_dev_data = &dm355_snd_soc_card_evm;
442 } else if (machine_is_davinci_dm365_evm()) {
443 evm_snd_dev_data = &dm365_snd_soc_card_evm;
445 } else if (machine_is_davinci_dm6467_evm()) {
446 evm_snd_dev_data = &dm6467_snd_soc_card_evm;
448 } else if (machine_is_davinci_da830_evm()) {
449 evm_snd_dev_data = &da830_snd_soc_card;
451 } else if (machine_is_davinci_da850_evm()) {
452 evm_snd_dev_data = &da850_snd_soc_card;
457 evm_snd_device = platform_device_alloc("soc-audio", index);
461 platform_set_drvdata(evm_snd_device, evm_snd_dev_data);
462 ret = platform_device_add(evm_snd_device);
464 platform_device_put(evm_snd_device);
469 static void __exit evm_exit(void)
471 #if defined(CONFIG_OF)
472 if (of_have_populated_dt()) {
473 platform_driver_unregister(&davinci_evm_driver);
478 platform_device_unregister(evm_snd_device);
481 module_init(evm_init);
482 module_exit(evm_exit);
484 MODULE_AUTHOR("Vladimir Barinov");
485 MODULE_DESCRIPTION("TI DAVINCI EVM ASoC driver");
486 MODULE_LICENSE("GPL");