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Linux/sound/soc/davinci/davinci-evm.c

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  1 /*
  2  * ASoC driver for TI DAVINCI EVM platform
  3  *
  4  * Author:      Vladimir Barinov, <vbarinov@embeddedalley.com>
  5  * Copyright:   (C) 2007 MontaVista Software, Inc., <source@mvista.com>
  6  *
  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.
 10  */
 11 
 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 <sound/core.h>
 20 #include <sound/pcm.h>
 21 #include <sound/soc.h>
 22 
 23 #include <asm/dma.h>
 24 #include <asm/mach-types.h>
 25 
 26 #include "davinci-pcm.h"
 27 #include "davinci-i2s.h"
 28 #include "davinci-mcasp.h"
 29 
 30 #define AUDIO_FORMAT (SND_SOC_DAIFMT_DSP_B | \
 31                 SND_SOC_DAIFMT_CBM_CFM | SND_SOC_DAIFMT_IB_NF)
 32 static int evm_hw_params(struct snd_pcm_substream *substream,
 33                          struct snd_pcm_hw_params *params)
 34 {
 35         struct snd_soc_pcm_runtime *rtd = substream->private_data;
 36         struct snd_soc_dai *codec_dai = rtd->codec_dai;
 37         struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
 38         int ret = 0;
 39         unsigned sysclk;
 40 
 41         /* ASP1 on DM355 EVM is clocked by an external oscillator */
 42         if (machine_is_davinci_dm355_evm() || machine_is_davinci_dm6467_evm() ||
 43             machine_is_davinci_dm365_evm())
 44                 sysclk = 27000000;
 45 
 46         /* ASP0 in DM6446 EVM is clocked by U55, as configured by
 47          * board-dm644x-evm.c using GPIOs from U18.  There are six
 48          * options; here we "know" we use a 48 KHz sample rate.
 49          */
 50         else if (machine_is_davinci_evm())
 51                 sysclk = 12288000;
 52 
 53         else if (machine_is_davinci_da830_evm() ||
 54                                 machine_is_davinci_da850_evm())
 55                 sysclk = 24576000;
 56 
 57         else
 58                 return -EINVAL;
 59 
 60         /* set codec DAI configuration */
 61         ret = snd_soc_dai_set_fmt(codec_dai, AUDIO_FORMAT);
 62         if (ret < 0)
 63                 return ret;
 64 
 65         /* set cpu DAI configuration */
 66         ret = snd_soc_dai_set_fmt(cpu_dai, AUDIO_FORMAT);
 67         if (ret < 0)
 68                 return ret;
 69 
 70         /* set the codec system clock */
 71         ret = snd_soc_dai_set_sysclk(codec_dai, 0, sysclk, SND_SOC_CLOCK_OUT);
 72         if (ret < 0)
 73                 return ret;
 74 
 75         /* set the CPU system clock */
 76         ret = snd_soc_dai_set_sysclk(cpu_dai, 0, sysclk, SND_SOC_CLOCK_OUT);
 77         if (ret < 0)
 78                 return ret;
 79 
 80         return 0;
 81 }
 82 
 83 static int evm_spdif_hw_params(struct snd_pcm_substream *substream,
 84                                 struct snd_pcm_hw_params *params)
 85 {
 86         struct snd_soc_pcm_runtime *rtd = substream->private_data;
 87         struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
 88 
 89         /* set cpu DAI configuration */
 90         return snd_soc_dai_set_fmt(cpu_dai, AUDIO_FORMAT);
 91 }
 92 
 93 static struct snd_soc_ops evm_ops = {
 94         .hw_params = evm_hw_params,
 95 };
 96 
 97 static struct snd_soc_ops evm_spdif_ops = {
 98         .hw_params = evm_spdif_hw_params,
 99 };
100 
101 /* davinci-evm machine dapm widgets */
102 static const struct snd_soc_dapm_widget aic3x_dapm_widgets[] = {
103         SND_SOC_DAPM_HP("Headphone Jack", NULL),
104         SND_SOC_DAPM_LINE("Line Out", NULL),
105         SND_SOC_DAPM_MIC("Mic Jack", NULL),
106         SND_SOC_DAPM_LINE("Line In", NULL),
107 };
108 
109 /* davinci-evm machine audio_mapnections to the codec pins */
110 static const struct snd_soc_dapm_route audio_map[] = {
111         /* Headphone connected to HPLOUT, HPROUT */
112         {"Headphone Jack", NULL, "HPLOUT"},
113         {"Headphone Jack", NULL, "HPROUT"},
114 
115         /* Line Out connected to LLOUT, RLOUT */
116         {"Line Out", NULL, "LLOUT"},
117         {"Line Out", NULL, "RLOUT"},
118 
119         /* Mic connected to (MIC3L | MIC3R) */
120         {"MIC3L", NULL, "Mic Bias"},
121         {"MIC3R", NULL, "Mic Bias"},
122         {"Mic Bias", NULL, "Mic Jack"},
123 
124         /* Line In connected to (LINE1L | LINE2L), (LINE1R | LINE2R) */
125         {"LINE1L", NULL, "Line In"},
126         {"LINE2L", NULL, "Line In"},
127         {"LINE1R", NULL, "Line In"},
128         {"LINE2R", NULL, "Line In"},
129 };
130 
131 /* Logic for a aic3x as connected on a davinci-evm */
132 static int evm_aic3x_init(struct snd_soc_pcm_runtime *rtd)
133 {
134         struct snd_soc_codec *codec = rtd->codec;
135         struct snd_soc_dapm_context *dapm = &codec->dapm;
136 
137         /* Add davinci-evm specific widgets */
138         snd_soc_dapm_new_controls(dapm, aic3x_dapm_widgets,
139                                   ARRAY_SIZE(aic3x_dapm_widgets));
140 
141         /* Set up davinci-evm specific audio path audio_map */
142         snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
143 
144         /* not connected */
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");
148 
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");
154 
155         return 0;
156 }
157 
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,
167         .ops = &evm_ops,
168 };
169 
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,
178         .ops = &evm_ops,
179 };
180 
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         .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",
198 #endif
199 };
200 
201 static struct snd_soc_dai_link dm6467_evm_dai[] = {
202         {
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,
210                 .ops = &evm_ops,
211         },
212         {
213                 .name = "McASP",
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,
220         },
221 };
222 
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,
231         .ops = &evm_ops,
232 };
233 
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,
242         .ops = &evm_ops,
243 };
244 
245 /* davinci dm6446 evm audio machine driver */
246 static struct snd_soc_card dm6446_snd_soc_card_evm = {
247         .name = "DaVinci DM6446 EVM",
248         .owner = THIS_MODULE,
249         .dai_link = &dm6446_evm_dai,
250         .num_links = 1,
251 };
252 
253 /* davinci dm355 evm audio machine driver */
254 static struct snd_soc_card dm355_snd_soc_card_evm = {
255         .name = "DaVinci DM355 EVM",
256         .owner = THIS_MODULE,
257         .dai_link = &dm355_evm_dai,
258         .num_links = 1,
259 };
260 
261 /* davinci dm365 evm audio machine driver */
262 static struct snd_soc_card dm365_snd_soc_card_evm = {
263         .name = "DaVinci DM365 EVM",
264         .owner = THIS_MODULE,
265         .dai_link = &dm365_evm_dai,
266         .num_links = 1,
267 };
268 
269 /* davinci dm6467 evm audio machine driver */
270 static struct snd_soc_card dm6467_snd_soc_card_evm = {
271         .name = "DaVinci DM6467 EVM",
272         .owner = THIS_MODULE,
273         .dai_link = dm6467_evm_dai,
274         .num_links = ARRAY_SIZE(dm6467_evm_dai),
275 };
276 
277 static struct snd_soc_card da830_snd_soc_card = {
278         .name = "DA830/OMAP-L137 EVM",
279         .owner = THIS_MODULE,
280         .dai_link = &da830_evm_dai,
281         .num_links = 1,
282 };
283 
284 static struct snd_soc_card da850_snd_soc_card = {
285         .name = "DA850/OMAP-L138 EVM",
286         .owner = THIS_MODULE,
287         .dai_link = &da850_evm_dai,
288         .num_links = 1,
289 };
290 
291 static struct platform_device *evm_snd_device;
292 
293 static int __init evm_init(void)
294 {
295         struct snd_soc_card *evm_snd_dev_data;
296         int index;
297         int ret;
298 
299         if (machine_is_davinci_evm()) {
300                 evm_snd_dev_data = &dm6446_snd_soc_card_evm;
301                 index = 0;
302         } else if (machine_is_davinci_dm355_evm()) {
303                 evm_snd_dev_data = &dm355_snd_soc_card_evm;
304                 index = 1;
305         } else if (machine_is_davinci_dm365_evm()) {
306                 evm_snd_dev_data = &dm365_snd_soc_card_evm;
307                 index = 0;
308         } else if (machine_is_davinci_dm6467_evm()) {
309                 evm_snd_dev_data = &dm6467_snd_soc_card_evm;
310                 index = 0;
311         } else if (machine_is_davinci_da830_evm()) {
312                 evm_snd_dev_data = &da830_snd_soc_card;
313                 index = 1;
314         } else if (machine_is_davinci_da850_evm()) {
315                 evm_snd_dev_data = &da850_snd_soc_card;
316                 index = 0;
317         } else
318                 return -EINVAL;
319 
320         evm_snd_device = platform_device_alloc("soc-audio", index);
321         if (!evm_snd_device)
322                 return -ENOMEM;
323 
324         platform_set_drvdata(evm_snd_device, evm_snd_dev_data);
325         ret = platform_device_add(evm_snd_device);
326         if (ret)
327                 platform_device_put(evm_snd_device);
328 
329         return ret;
330 }
331 
332 static void __exit evm_exit(void)
333 {
334         platform_device_unregister(evm_snd_device);
335 }
336 
337 module_init(evm_init);
338 module_exit(evm_exit);
339 
340 MODULE_AUTHOR("Vladimir Barinov");
341 MODULE_DESCRIPTION("TI DAVINCI EVM ASoC driver");
342 MODULE_LICENSE("GPL");
343 

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