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>
26 #include <mach/edma.h>
29 #include "../codecs/tlv320aic3x.h"
30 #include "davinci-pcm.h"
31 #include "davinci-i2s.h"
32 #include "davinci-mcasp.h"
34 #define AUDIO_FORMAT (SND_SOC_DAIFMT_DSP_B | \
35 SND_SOC_DAIFMT_CBM_CFM | SND_SOC_DAIFMT_IB_NF)
36 static int evm_hw_params(struct snd_pcm_substream *substream,
37 struct snd_pcm_hw_params *params)
39 struct snd_soc_pcm_runtime *rtd = substream->private_data;
40 struct snd_soc_dai *codec_dai = rtd->codec_dai;
41 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
45 /* ASP1 on DM355 EVM is clocked by an external oscillator */
46 if (machine_is_davinci_dm355_evm() || machine_is_davinci_dm6467_evm() ||
47 machine_is_davinci_dm365_evm())
50 /* ASP0 in DM6446 EVM is clocked by U55, as configured by
51 * board-dm644x-evm.c using GPIOs from U18. There are six
52 * options; here we "know" we use a 48 KHz sample rate.
54 else if (machine_is_davinci_evm())
57 else if (machine_is_davinci_da830_evm() ||
58 machine_is_davinci_da850_evm())
64 /* set codec DAI configuration */
65 ret = snd_soc_dai_set_fmt(codec_dai, AUDIO_FORMAT);
69 /* set cpu DAI configuration */
70 ret = snd_soc_dai_set_fmt(cpu_dai, AUDIO_FORMAT);
74 /* set the codec system clock */
75 ret = snd_soc_dai_set_sysclk(codec_dai, 0, sysclk, SND_SOC_CLOCK_OUT);
82 static int evm_spdif_hw_params(struct snd_pcm_substream *substream,
83 struct snd_pcm_hw_params *params)
85 struct snd_soc_pcm_runtime *rtd = substream->private_data;
86 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
88 /* set cpu DAI configuration */
89 return snd_soc_dai_set_fmt(cpu_dai, AUDIO_FORMAT);
92 static struct snd_soc_ops evm_ops = {
93 .hw_params = evm_hw_params,
96 static struct snd_soc_ops evm_spdif_ops = {
97 .hw_params = evm_spdif_hw_params,
100 /* davinci-evm machine dapm widgets */
101 static const struct snd_soc_dapm_widget aic3x_dapm_widgets[] = {
102 SND_SOC_DAPM_HP("Headphone Jack", NULL),
103 SND_SOC_DAPM_LINE("Line Out", NULL),
104 SND_SOC_DAPM_MIC("Mic Jack", NULL),
105 SND_SOC_DAPM_LINE("Line In", NULL),
108 /* davinci-evm machine audio_mapnections to the codec pins */
109 static const struct snd_soc_dapm_route audio_map[] = {
110 /* Headphone connected to HPLOUT, HPROUT */
111 {"Headphone Jack", NULL, "HPLOUT"},
112 {"Headphone Jack", NULL, "HPROUT"},
114 /* Line Out connected to LLOUT, RLOUT */
115 {"Line Out", NULL, "LLOUT"},
116 {"Line Out", NULL, "RLOUT"},
118 /* Mic connected to (MIC3L | MIC3R) */
119 {"MIC3L", NULL, "Mic Bias 2V"},
120 {"MIC3R", NULL, "Mic Bias 2V"},
121 {"Mic Bias 2V", NULL, "Mic Jack"},
123 /* Line In connected to (LINE1L | LINE2L), (LINE1R | LINE2R) */
124 {"LINE1L", NULL, "Line In"},
125 {"LINE2L", NULL, "Line In"},
126 {"LINE1R", NULL, "Line In"},
127 {"LINE2R", NULL, "Line In"},
130 /* Logic for a aic3x as connected on a davinci-evm */
131 static int evm_aic3x_init(struct snd_soc_pcm_runtime *rtd)
133 struct snd_soc_codec *codec = rtd->codec;
134 struct snd_soc_dapm_context *dapm = &codec->dapm;
136 /* Add davinci-evm specific widgets */
137 snd_soc_dapm_new_controls(dapm, aic3x_dapm_widgets,
138 ARRAY_SIZE(aic3x_dapm_widgets));
140 /* Set up davinci-evm specific audio path audio_map */
141 snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
144 snd_soc_dapm_disable_pin(dapm, "MONO_LOUT");
145 snd_soc_dapm_disable_pin(dapm, "HPLCOM");
146 snd_soc_dapm_disable_pin(dapm, "HPRCOM");
148 /* always connected */
149 snd_soc_dapm_enable_pin(dapm, "Headphone Jack");
150 snd_soc_dapm_enable_pin(dapm, "Line Out");
151 snd_soc_dapm_enable_pin(dapm, "Mic Jack");
152 snd_soc_dapm_enable_pin(dapm, "Line In");
154 snd_soc_dapm_sync(dapm);
159 /* davinci-evm digital audio interface glue - connects codec <--> CPU */
160 static struct snd_soc_dai_link dm6446_evm_dai = {
161 .name = "TLV320AIC3X",
162 .stream_name = "AIC3X",
163 .cpu_dai_name = "davinci-mcbsp",
164 .codec_dai_name = "tlv320aic3x-hifi",
165 .codec_name = "tlv320aic3x-codec.1-001b",
166 .platform_name = "davinci-pcm-audio",
167 .init = evm_aic3x_init,
171 static struct snd_soc_dai_link dm355_evm_dai = {
172 .name = "TLV320AIC3X",
173 .stream_name = "AIC3X",
174 .cpu_dai_name = "davinci-mcbsp.1",
175 .codec_dai_name = "tlv320aic3x-hifi",
176 .codec_name = "tlv320aic3x-codec.1-001b",
177 .platform_name = "davinci-pcm-audio",
178 .init = evm_aic3x_init,
182 static struct snd_soc_dai_link dm365_evm_dai = {
183 #ifdef CONFIG_SND_DM365_AIC3X_CODEC
184 .name = "TLV320AIC3X",
185 .stream_name = "AIC3X",
186 .cpu_dai_name = "davinci-mcbsp",
187 .codec_dai_name = "tlv320aic3x-hifi",
188 .init = evm_aic3x_init,
189 .codec_name = "tlv320aic3x-codec.1-0018",
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",
198 .platform_name = "davinci-pcm-audio",
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-pcm-audio",
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-pcm-audio",
219 .ops = &evm_spdif_ops,
222 static struct snd_soc_dai_link da8xx_evm_dai = {
223 .name = "TLV320AIC3X",
224 .stream_name = "AIC3X",
225 .cpu_dai_name= "davinci-mcasp.0",
226 .codec_dai_name = "tlv320aic3x-hifi",
227 .codec_name = "tlv320aic3x-codec.0-001a",
228 .platform_name = "davinci-pcm-audio",
229 .init = evm_aic3x_init,
233 /* davinci dm6446 evm audio machine driver */
234 static struct snd_soc_card dm6446_snd_soc_card_evm = {
235 .name = "DaVinci DM6446 EVM",
236 .dai_link = &dm6446_evm_dai,
240 /* davinci dm355 evm audio machine driver */
241 static struct snd_soc_card dm355_snd_soc_card_evm = {
242 .name = "DaVinci DM355 EVM",
243 .dai_link = &dm355_evm_dai,
247 /* davinci dm365 evm audio machine driver */
248 static struct snd_soc_card dm365_snd_soc_card_evm = {
249 .name = "DaVinci DM365 EVM",
250 .dai_link = &dm365_evm_dai,
254 /* davinci dm6467 evm audio machine driver */
255 static struct snd_soc_card dm6467_snd_soc_card_evm = {
256 .name = "DaVinci DM6467 EVM",
257 .dai_link = dm6467_evm_dai,
258 .num_links = ARRAY_SIZE(dm6467_evm_dai),
261 static struct snd_soc_card da830_snd_soc_card = {
262 .name = "DA830/OMAP-L137 EVM",
263 .dai_link = &da8xx_evm_dai,
267 static struct snd_soc_card da850_snd_soc_card = {
268 .name = "DA850/OMAP-L138 EVM",
269 .dai_link = &da8xx_evm_dai,
273 static struct platform_device *evm_snd_device;
275 static int __init evm_init(void)
277 struct snd_soc_card *evm_snd_dev_data;
281 if (machine_is_davinci_evm()) {
282 evm_snd_dev_data = &dm6446_snd_soc_card_evm;
284 } else if (machine_is_davinci_dm355_evm()) {
285 evm_snd_dev_data = &dm355_snd_soc_card_evm;
287 } else if (machine_is_davinci_dm365_evm()) {
288 evm_snd_dev_data = &dm365_snd_soc_card_evm;
290 } else if (machine_is_davinci_dm6467_evm()) {
291 evm_snd_dev_data = &dm6467_snd_soc_card_evm;
293 } else if (machine_is_davinci_da830_evm()) {
294 evm_snd_dev_data = &da830_snd_soc_card;
296 } else if (machine_is_davinci_da850_evm()) {
297 evm_snd_dev_data = &da850_snd_soc_card;
302 evm_snd_device = platform_device_alloc("soc-audio", index);
306 platform_set_drvdata(evm_snd_device, evm_snd_dev_data);
307 ret = platform_device_add(evm_snd_device);
309 platform_device_put(evm_snd_device);
314 static void __exit evm_exit(void)
316 platform_device_unregister(evm_snd_device);
319 module_init(evm_init);
320 module_exit(evm_exit);
322 MODULE_AUTHOR("Vladimir Barinov");
323 MODULE_DESCRIPTION("TI DAVINCI EVM ASoC driver");
324 MODULE_LICENSE("GPL");