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/i2c.h>
18 #include <sound/core.h>
19 #include <sound/pcm.h>
20 #include <sound/soc.h>
23 #include <asm/mach-types.h>
25 #include "davinci-pcm.h"
26 #include "davinci-i2s.h"
27 #include "davinci-mcasp.h"
29 #define AUDIO_FORMAT (SND_SOC_DAIFMT_DSP_B | \
30 SND_SOC_DAIFMT_CBM_CFM | SND_SOC_DAIFMT_IB_NF)
31 static int evm_hw_params(struct snd_pcm_substream *substream,
32 struct snd_pcm_hw_params *params)
34 struct snd_soc_pcm_runtime *rtd = substream->private_data;
35 struct snd_soc_dai *codec_dai = rtd->codec_dai;
36 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
40 /* ASP1 on DM355 EVM is clocked by an external oscillator */
41 if (machine_is_davinci_dm355_evm() || machine_is_davinci_dm6467_evm() ||
42 machine_is_davinci_dm365_evm())
45 /* ASP0 in DM6446 EVM is clocked by U55, as configured by
46 * board-dm644x-evm.c using GPIOs from U18. There are six
47 * options; here we "know" we use a 48 KHz sample rate.
49 else if (machine_is_davinci_evm())
52 else if (machine_is_davinci_da830_evm() ||
53 machine_is_davinci_da850_evm())
59 /* set codec DAI configuration */
60 ret = snd_soc_dai_set_fmt(codec_dai, AUDIO_FORMAT);
64 /* set cpu DAI configuration */
65 ret = snd_soc_dai_set_fmt(cpu_dai, AUDIO_FORMAT);
69 /* set the codec system clock */
70 ret = snd_soc_dai_set_sysclk(codec_dai, 0, sysclk, SND_SOC_CLOCK_OUT);
77 static int evm_spdif_hw_params(struct snd_pcm_substream *substream,
78 struct snd_pcm_hw_params *params)
80 struct snd_soc_pcm_runtime *rtd = substream->private_data;
81 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
83 /* set cpu DAI configuration */
84 return snd_soc_dai_set_fmt(cpu_dai, AUDIO_FORMAT);
87 static struct snd_soc_ops evm_ops = {
88 .hw_params = evm_hw_params,
91 static struct snd_soc_ops evm_spdif_ops = {
92 .hw_params = evm_spdif_hw_params,
95 /* davinci-evm machine dapm widgets */
96 static const struct snd_soc_dapm_widget aic3x_dapm_widgets[] = {
97 SND_SOC_DAPM_HP("Headphone Jack", NULL),
98 SND_SOC_DAPM_LINE("Line Out", NULL),
99 SND_SOC_DAPM_MIC("Mic Jack", NULL),
100 SND_SOC_DAPM_LINE("Line In", NULL),
103 /* davinci-evm machine audio_mapnections to the codec pins */
104 static const struct snd_soc_dapm_route audio_map[] = {
105 /* Headphone connected to HPLOUT, HPROUT */
106 {"Headphone Jack", NULL, "HPLOUT"},
107 {"Headphone Jack", NULL, "HPROUT"},
109 /* Line Out connected to LLOUT, RLOUT */
110 {"Line Out", NULL, "LLOUT"},
111 {"Line Out", NULL, "RLOUT"},
113 /* Mic connected to (MIC3L | MIC3R) */
114 {"MIC3L", NULL, "Mic Bias 2V"},
115 {"MIC3R", NULL, "Mic Bias 2V"},
116 {"Mic Bias 2V", NULL, "Mic Jack"},
118 /* Line In connected to (LINE1L | LINE2L), (LINE1R | LINE2R) */
119 {"LINE1L", NULL, "Line In"},
120 {"LINE2L", NULL, "Line In"},
121 {"LINE1R", NULL, "Line In"},
122 {"LINE2R", NULL, "Line In"},
125 /* Logic for a aic3x as connected on a davinci-evm */
126 static int evm_aic3x_init(struct snd_soc_pcm_runtime *rtd)
128 struct snd_soc_codec *codec = rtd->codec;
129 struct snd_soc_dapm_context *dapm = &codec->dapm;
131 /* Add davinci-evm specific widgets */
132 snd_soc_dapm_new_controls(dapm, aic3x_dapm_widgets,
133 ARRAY_SIZE(aic3x_dapm_widgets));
135 /* Set up davinci-evm specific audio path audio_map */
136 snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
139 snd_soc_dapm_disable_pin(dapm, "MONO_LOUT");
140 snd_soc_dapm_disable_pin(dapm, "HPLCOM");
141 snd_soc_dapm_disable_pin(dapm, "HPRCOM");
143 /* always connected */
144 snd_soc_dapm_enable_pin(dapm, "Headphone Jack");
145 snd_soc_dapm_enable_pin(dapm, "Line Out");
146 snd_soc_dapm_enable_pin(dapm, "Mic Jack");
147 snd_soc_dapm_enable_pin(dapm, "Line In");
152 /* davinci-evm digital audio interface glue - connects codec <--> CPU */
153 static struct snd_soc_dai_link dm6446_evm_dai = {
154 .name = "TLV320AIC3X",
155 .stream_name = "AIC3X",
156 .cpu_dai_name = "davinci-mcbsp",
157 .codec_dai_name = "tlv320aic3x-hifi",
158 .codec_name = "tlv320aic3x-codec.1-001b",
159 .platform_name = "davinci-mcbsp",
160 .init = evm_aic3x_init,
164 static struct snd_soc_dai_link dm355_evm_dai = {
165 .name = "TLV320AIC3X",
166 .stream_name = "AIC3X",
167 .cpu_dai_name = "davinci-mcbsp.1",
168 .codec_dai_name = "tlv320aic3x-hifi",
169 .codec_name = "tlv320aic3x-codec.1-001b",
170 .platform_name = "davinci-mcbsp.1",
171 .init = evm_aic3x_init,
175 static struct snd_soc_dai_link dm365_evm_dai = {
176 #ifdef CONFIG_SND_DM365_AIC3X_CODEC
177 .name = "TLV320AIC3X",
178 .stream_name = "AIC3X",
179 .cpu_dai_name = "davinci-mcbsp",
180 .codec_dai_name = "tlv320aic3x-hifi",
181 .init = evm_aic3x_init,
182 .codec_name = "tlv320aic3x-codec.1-0018",
184 .platform_name = "davinci-mcbsp",
185 #elif defined(CONFIG_SND_DM365_VOICE_CODEC)
186 .name = "Voice Codec - CQ93VC",
187 .stream_name = "CQ93",
188 .cpu_dai_name = "davinci-vcif",
189 .codec_dai_name = "cq93vc-hifi",
190 .codec_name = "cq93vc-codec",
191 .platform_name = "davinci-vcif",
195 static struct snd_soc_dai_link dm6467_evm_dai[] = {
197 .name = "TLV320AIC3X",
198 .stream_name = "AIC3X",
199 .cpu_dai_name= "davinci-mcasp.0",
200 .codec_dai_name = "tlv320aic3x-hifi",
201 .platform_name = "davinci-mcasp.0",
202 .codec_name = "tlv320aic3x-codec.0-001a",
203 .init = evm_aic3x_init,
208 .stream_name = "spdif",
209 .cpu_dai_name= "davinci-mcasp.1",
210 .codec_dai_name = "dit-hifi",
211 .codec_name = "spdif_dit",
212 .platform_name = "davinci-mcasp.1",
213 .ops = &evm_spdif_ops,
217 static struct snd_soc_dai_link da830_evm_dai = {
218 .name = "TLV320AIC3X",
219 .stream_name = "AIC3X",
220 .cpu_dai_name = "davinci-mcasp.1",
221 .codec_dai_name = "tlv320aic3x-hifi",
222 .codec_name = "tlv320aic3x-codec.1-0018",
223 .platform_name = "davinci-mcasp.1",
224 .init = evm_aic3x_init,
228 static struct snd_soc_dai_link da850_evm_dai = {
229 .name = "TLV320AIC3X",
230 .stream_name = "AIC3X",
231 .cpu_dai_name= "davinci-mcasp.0",
232 .codec_dai_name = "tlv320aic3x-hifi",
233 .codec_name = "tlv320aic3x-codec.1-0018",
234 .platform_name = "davinci-mcasp.0",
235 .init = evm_aic3x_init,
239 /* davinci dm6446 evm audio machine driver */
240 static struct snd_soc_card dm6446_snd_soc_card_evm = {
241 .name = "DaVinci DM6446 EVM",
242 .owner = THIS_MODULE,
243 .dai_link = &dm6446_evm_dai,
247 /* davinci dm355 evm audio machine driver */
248 static struct snd_soc_card dm355_snd_soc_card_evm = {
249 .name = "DaVinci DM355 EVM",
250 .owner = THIS_MODULE,
251 .dai_link = &dm355_evm_dai,
255 /* davinci dm365 evm audio machine driver */
256 static struct snd_soc_card dm365_snd_soc_card_evm = {
257 .name = "DaVinci DM365 EVM",
258 .owner = THIS_MODULE,
259 .dai_link = &dm365_evm_dai,
263 /* davinci dm6467 evm audio machine driver */
264 static struct snd_soc_card dm6467_snd_soc_card_evm = {
265 .name = "DaVinci DM6467 EVM",
266 .owner = THIS_MODULE,
267 .dai_link = dm6467_evm_dai,
268 .num_links = ARRAY_SIZE(dm6467_evm_dai),
271 static struct snd_soc_card da830_snd_soc_card = {
272 .name = "DA830/OMAP-L137 EVM",
273 .owner = THIS_MODULE,
274 .dai_link = &da830_evm_dai,
278 static struct snd_soc_card da850_snd_soc_card = {
279 .name = "DA850/OMAP-L138 EVM",
280 .owner = THIS_MODULE,
281 .dai_link = &da850_evm_dai,
285 static struct platform_device *evm_snd_device;
287 static int __init evm_init(void)
289 struct snd_soc_card *evm_snd_dev_data;
293 if (machine_is_davinci_evm()) {
294 evm_snd_dev_data = &dm6446_snd_soc_card_evm;
296 } else if (machine_is_davinci_dm355_evm()) {
297 evm_snd_dev_data = &dm355_snd_soc_card_evm;
299 } else if (machine_is_davinci_dm365_evm()) {
300 evm_snd_dev_data = &dm365_snd_soc_card_evm;
302 } else if (machine_is_davinci_dm6467_evm()) {
303 evm_snd_dev_data = &dm6467_snd_soc_card_evm;
305 } else if (machine_is_davinci_da830_evm()) {
306 evm_snd_dev_data = &da830_snd_soc_card;
308 } else if (machine_is_davinci_da850_evm()) {
309 evm_snd_dev_data = &da850_snd_soc_card;
314 evm_snd_device = platform_device_alloc("soc-audio", index);
318 platform_set_drvdata(evm_snd_device, evm_snd_dev_data);
319 ret = platform_device_add(evm_snd_device);
321 platform_device_put(evm_snd_device);
326 static void __exit evm_exit(void)
328 platform_device_unregister(evm_snd_device);
331 module_init(evm_init);
332 module_exit(evm_exit);
334 MODULE_AUTHOR("Vladimir Barinov");
335 MODULE_DESCRIPTION("TI DAVINCI EVM ASoC driver");
336 MODULE_LICENSE("GPL");