Merge remote-tracking branch 'arm/for-next'
[linux-2.6/next.git] / sound / soc / davinci / davinci-evm.c
blobfe7984221eb9bcad2bd027e219e15c8ba9f06360
1 /*
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>
22 #include <asm/dma.h>
23 #include <asm/mach-types.h>
25 #include <mach/asp.h>
26 #include <mach/edma.h>
27 #include <mach/mux.h>
29 #include "davinci-pcm.h"
30 #include "davinci-i2s.h"
31 #include "davinci-mcasp.h"
33 #define AUDIO_FORMAT (SND_SOC_DAIFMT_DSP_B | \
34 SND_SOC_DAIFMT_CBM_CFM | SND_SOC_DAIFMT_IB_NF)
35 static int evm_hw_params(struct snd_pcm_substream *substream,
36 struct snd_pcm_hw_params *params)
38 struct snd_soc_pcm_runtime *rtd = substream->private_data;
39 struct snd_soc_dai *codec_dai = rtd->codec_dai;
40 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
41 int ret = 0;
42 unsigned sysclk;
44 /* ASP1 on DM355 EVM is clocked by an external oscillator */
45 if (machine_is_davinci_dm355_evm() || machine_is_davinci_dm6467_evm() ||
46 machine_is_davinci_dm365_evm())
47 sysclk = 27000000;
49 /* ASP0 in DM6446 EVM is clocked by U55, as configured by
50 * board-dm644x-evm.c using GPIOs from U18. There are six
51 * options; here we "know" we use a 48 KHz sample rate.
53 else if (machine_is_davinci_evm())
54 sysclk = 12288000;
56 else if (machine_is_davinci_da830_evm() ||
57 machine_is_davinci_da850_evm())
58 sysclk = 24576000;
60 else
61 return -EINVAL;
63 /* set codec DAI configuration */
64 ret = snd_soc_dai_set_fmt(codec_dai, AUDIO_FORMAT);
65 if (ret < 0)
66 return ret;
68 /* set cpu DAI configuration */
69 ret = snd_soc_dai_set_fmt(cpu_dai, AUDIO_FORMAT);
70 if (ret < 0)
71 return ret;
73 /* set the codec system clock */
74 ret = snd_soc_dai_set_sysclk(codec_dai, 0, sysclk, SND_SOC_CLOCK_OUT);
75 if (ret < 0)
76 return ret;
78 return 0;
81 static int evm_spdif_hw_params(struct snd_pcm_substream *substream,
82 struct snd_pcm_hw_params *params)
84 struct snd_soc_pcm_runtime *rtd = substream->private_data;
85 struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
87 /* set cpu DAI configuration */
88 return snd_soc_dai_set_fmt(cpu_dai, AUDIO_FORMAT);
91 static struct snd_soc_ops evm_ops = {
92 .hw_params = evm_hw_params,
95 static struct snd_soc_ops evm_spdif_ops = {
96 .hw_params = evm_spdif_hw_params,
99 /* davinci-evm machine dapm widgets */
100 static const struct snd_soc_dapm_widget aic3x_dapm_widgets[] = {
101 SND_SOC_DAPM_HP("Headphone Jack", NULL),
102 SND_SOC_DAPM_LINE("Line Out", NULL),
103 SND_SOC_DAPM_MIC("Mic Jack", NULL),
104 SND_SOC_DAPM_LINE("Line In", NULL),
107 /* davinci-evm machine audio_mapnections to the codec pins */
108 static const struct snd_soc_dapm_route audio_map[] = {
109 /* Headphone connected to HPLOUT, HPROUT */
110 {"Headphone Jack", NULL, "HPLOUT"},
111 {"Headphone Jack", NULL, "HPROUT"},
113 /* Line Out connected to LLOUT, RLOUT */
114 {"Line Out", NULL, "LLOUT"},
115 {"Line Out", NULL, "RLOUT"},
117 /* Mic connected to (MIC3L | MIC3R) */
118 {"MIC3L", NULL, "Mic Bias 2V"},
119 {"MIC3R", NULL, "Mic Bias 2V"},
120 {"Mic Bias 2V", NULL, "Mic Jack"},
122 /* Line In connected to (LINE1L | LINE2L), (LINE1R | LINE2R) */
123 {"LINE1L", NULL, "Line In"},
124 {"LINE2L", NULL, "Line In"},
125 {"LINE1R", NULL, "Line In"},
126 {"LINE2R", NULL, "Line In"},
129 /* Logic for a aic3x as connected on a davinci-evm */
130 static int evm_aic3x_init(struct snd_soc_pcm_runtime *rtd)
132 struct snd_soc_codec *codec = rtd->codec;
133 struct snd_soc_dapm_context *dapm = &codec->dapm;
135 /* Add davinci-evm specific widgets */
136 snd_soc_dapm_new_controls(dapm, aic3x_dapm_widgets,
137 ARRAY_SIZE(aic3x_dapm_widgets));
139 /* Set up davinci-evm specific audio path audio_map */
140 snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
142 /* not connected */
143 snd_soc_dapm_disable_pin(dapm, "MONO_LOUT");
144 snd_soc_dapm_disable_pin(dapm, "HPLCOM");
145 snd_soc_dapm_disable_pin(dapm, "HPRCOM");
147 /* always connected */
148 snd_soc_dapm_enable_pin(dapm, "Headphone Jack");
149 snd_soc_dapm_enable_pin(dapm, "Line Out");
150 snd_soc_dapm_enable_pin(dapm, "Mic Jack");
151 snd_soc_dapm_enable_pin(dapm, "Line In");
153 snd_soc_dapm_sync(dapm);
155 return 0;
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-pcm-audio",
166 .init = evm_aic3x_init,
167 .ops = &evm_ops,
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-pcm-audio",
177 .init = evm_aic3x_init,
178 .ops = &evm_ops,
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",
189 .ops = &evm_ops,
190 #elif defined(CONFIG_SND_DM365_VOICE_CODEC)
191 .name = "Voice Codec - CQ93VC",
192 .stream_name = "CQ93",
193 .cpu_dai_name = "davinci-vcif",
194 .codec_dai_name = "cq93vc-hifi",
195 .codec_name = "cq93vc-codec",
196 #endif
197 .platform_name = "davinci-pcm-audio",
200 static struct snd_soc_dai_link dm6467_evm_dai[] = {
202 .name = "TLV320AIC3X",
203 .stream_name = "AIC3X",
204 .cpu_dai_name= "davinci-mcasp.0",
205 .codec_dai_name = "tlv320aic3x-hifi",
206 .platform_name ="davinci-pcm-audio",
207 .codec_name = "tlv320aic3x-codec.0-001a",
208 .init = evm_aic3x_init,
209 .ops = &evm_ops,
212 .name = "McASP",
213 .stream_name = "spdif",
214 .cpu_dai_name= "davinci-mcasp.1",
215 .codec_dai_name = "dit-hifi",
216 .codec_name = "spdif_dit",
217 .platform_name = "davinci-pcm-audio",
218 .ops = &evm_spdif_ops,
222 static struct snd_soc_dai_link da830_evm_dai = {
223 .name = "TLV320AIC3X",
224 .stream_name = "AIC3X",
225 .cpu_dai_name = "davinci-mcasp.1",
226 .codec_dai_name = "tlv320aic3x-hifi",
227 .codec_name = "tlv320aic3x-codec.1-0018",
228 .platform_name = "davinci-pcm-audio",
229 .init = evm_aic3x_init,
230 .ops = &evm_ops,
233 static struct snd_soc_dai_link da850_evm_dai = {
234 .name = "TLV320AIC3X",
235 .stream_name = "AIC3X",
236 .cpu_dai_name= "davinci-mcasp.0",
237 .codec_dai_name = "tlv320aic3x-hifi",
238 .codec_name = "tlv320aic3x-codec.1-0018",
239 .platform_name = "davinci-pcm-audio",
240 .init = evm_aic3x_init,
241 .ops = &evm_ops,
244 /* davinci dm6446 evm audio machine driver */
245 static struct snd_soc_card dm6446_snd_soc_card_evm = {
246 .name = "DaVinci DM6446 EVM",
247 .dai_link = &dm6446_evm_dai,
248 .num_links = 1,
251 /* davinci dm355 evm audio machine driver */
252 static struct snd_soc_card dm355_snd_soc_card_evm = {
253 .name = "DaVinci DM355 EVM",
254 .dai_link = &dm355_evm_dai,
255 .num_links = 1,
258 /* davinci dm365 evm audio machine driver */
259 static struct snd_soc_card dm365_snd_soc_card_evm = {
260 .name = "DaVinci DM365 EVM",
261 .dai_link = &dm365_evm_dai,
262 .num_links = 1,
265 /* davinci dm6467 evm audio machine driver */
266 static struct snd_soc_card dm6467_snd_soc_card_evm = {
267 .name = "DaVinci DM6467 EVM",
268 .dai_link = dm6467_evm_dai,
269 .num_links = ARRAY_SIZE(dm6467_evm_dai),
272 static struct snd_soc_card da830_snd_soc_card = {
273 .name = "DA830/OMAP-L137 EVM",
274 .dai_link = &da830_evm_dai,
275 .num_links = 1,
278 static struct snd_soc_card da850_snd_soc_card = {
279 .name = "DA850/OMAP-L138 EVM",
280 .dai_link = &da850_evm_dai,
281 .num_links = 1,
284 static struct platform_device *evm_snd_device;
286 static int __init evm_init(void)
288 struct snd_soc_card *evm_snd_dev_data;
289 int index;
290 int ret;
292 if (machine_is_davinci_evm()) {
293 evm_snd_dev_data = &dm6446_snd_soc_card_evm;
294 index = 0;
295 } else if (machine_is_davinci_dm355_evm()) {
296 evm_snd_dev_data = &dm355_snd_soc_card_evm;
297 index = 1;
298 } else if (machine_is_davinci_dm365_evm()) {
299 evm_snd_dev_data = &dm365_snd_soc_card_evm;
300 index = 0;
301 } else if (machine_is_davinci_dm6467_evm()) {
302 evm_snd_dev_data = &dm6467_snd_soc_card_evm;
303 index = 0;
304 } else if (machine_is_davinci_da830_evm()) {
305 evm_snd_dev_data = &da830_snd_soc_card;
306 index = 1;
307 } else if (machine_is_davinci_da850_evm()) {
308 evm_snd_dev_data = &da850_snd_soc_card;
309 index = 0;
310 } else
311 return -EINVAL;
313 evm_snd_device = platform_device_alloc("soc-audio", index);
314 if (!evm_snd_device)
315 return -ENOMEM;
317 platform_set_drvdata(evm_snd_device, evm_snd_dev_data);
318 ret = platform_device_add(evm_snd_device);
319 if (ret)
320 platform_device_put(evm_snd_device);
322 return ret;
325 static void __exit evm_exit(void)
327 platform_device_unregister(evm_snd_device);
330 module_init(evm_init);
331 module_exit(evm_exit);
333 MODULE_AUTHOR("Vladimir Barinov");
334 MODULE_DESCRIPTION("TI DAVINCI EVM ASoC driver");
335 MODULE_LICENSE("GPL");