sound/soc/davinci/davinci-evm.c

   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/i2c.h>
  18 #include <sound/core.h>
  19 #include <sound/pcm.h>
  20 #include <sound/soc.h>
  21
  22 #include <asm/dma.h>
  23 #include <asm/mach-types.h>
  24
  25 #include "davinci-pcm.h"
  26 #include "davinci-i2s.h"
  27 #include "davinci-mcasp.h"
  28
  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)
  33 {
  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;
  37         int ret = 0;
  38         unsigned sysclk;
  39
  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())
  43                 sysclk = 27000000;
  44
  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.
  48          */
  49         else if (machine_is_davinci_evm())
  50                 sysclk = 12288000;
  51
  52         else if (machine_is_davinci_da830_evm() ||
  53                                 machine_is_davinci_da850_evm())
  54                 sysclk = 24576000;
  55
  56         else
  57                 return -EINVAL;
  58
  59         /* set codec DAI configuration */
  60         ret = snd_soc_dai_set_fmt(codec_dai, AUDIO_FORMAT);
  61         if (ret < 0)
  62                 return ret;
  63
  64         /* set cpu DAI configuration */
  65         ret = snd_soc_dai_set_fmt(cpu_dai, AUDIO_FORMAT);
  66         if (ret < 0)
  67                 return ret;
  68
  69         /* set the codec system clock */
  70         ret = snd_soc_dai_set_sysclk(codec_dai, 0, sysclk, SND_SOC_CLOCK_OUT);
  71         if (ret < 0)
  72                 return ret;
  73
  74         return 0;
  75 }
  76
  77 static int evm_spdif_hw_params(struct snd_pcm_substream *substream,
  78                                 struct snd_pcm_hw_params *params)
  79 {
  80         struct snd_soc_pcm_runtime *rtd = substream->private_data;
  81         struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
  82
  83         /* set cpu DAI configuration */
  84         return snd_soc_dai_set_fmt(cpu_dai, AUDIO_FORMAT);
  85 }
  86
  87 static struct snd_soc_ops evm_ops = {
  88         .hw_params = evm_hw_params,
  89 };
  90
  91 static struct snd_soc_ops evm_spdif_ops = {
  92         .hw_params = evm_spdif_hw_params,
  93 };
  94
  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),
 101 };
 102
 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"},
 108
 109         /* Line Out connected to LLOUT, RLOUT */
 110         {"Line Out", NULL, "LLOUT"},
 111         {"Line Out", NULL, "RLOUT"},
 112
 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"},
 117
 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"},
 123 };
 124
 125 /* Logic for a aic3x as connected on a davinci-evm */
 126 static int evm_aic3x_init(struct snd_soc_pcm_runtime *rtd)
 127 {
 128         struct snd_soc_codec *codec = rtd->codec;
 129         struct snd_soc_dapm_context *dapm = &codec->dapm;
 130
 131         /* Add davinci-evm specific widgets */
 132         snd_soc_dapm_new_controls(dapm, aic3x_dapm_widgets,
 133                                   ARRAY_SIZE(aic3x_dapm_widgets));
 134
 135         /* Set up davinci-evm specific audio path audio_map */
 136         snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
 137
 138         /* not connected */
 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");
 142
 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");
 148
 149         return 0;
 150 }
 151
 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,
 161         .ops = &evm_ops,
 162 };
 163
 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,
 172         .ops = &evm_ops,
 173 };
 174
 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",
 183         .ops = &evm_ops,
 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 = "avinci-vcif",
 192 #endif
 193 };
 194
 195 static struct snd_soc_dai_link dm6467_evm_dai[] = {
 196         {
 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,
 204                 .ops = &evm_ops,
 205         },
 206         {
 207                 .name = "McASP",
 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,
 214         },
 215 };
 216
 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,
 225         .ops = &evm_ops,
 226 };
 227
 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,
 236         .ops = &evm_ops,
 237 };
 238
 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,
 244         .num_links = 1,
 245 };
 246
 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,
 252         .num_links = 1,
 253 };
 254
 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,
 260         .num_links = 1,
 261 };
 262
 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),
 269 };
 270
 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,
 275         .num_links = 1,
 276 };
 277
 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,
 282         .num_links = 1,
 283 };
 284
 285 static struct platform_device *evm_snd_device;
 286
 287 static int __init evm_init(void)
 288 {
 289         struct snd_soc_card *evm_snd_dev_data;
 290         int index;
 291         int ret;
 292
 293         if (machine_is_davinci_evm()) {
 294                 evm_snd_dev_data = &dm6446_snd_soc_card_evm;
 295                 index = 0;
 296         } else if (machine_is_davinci_dm355_evm()) {
 297                 evm_snd_dev_data = &dm355_snd_soc_card_evm;
 298                 index = 1;
 299         } else if (machine_is_davinci_dm365_evm()) {
 300                 evm_snd_dev_data = &dm365_snd_soc_card_evm;
 301                 index = 0;
 302         } else if (machine_is_davinci_dm6467_evm()) {
 303                 evm_snd_dev_data = &dm6467_snd_soc_card_evm;
 304                 index = 0;
 305         } else if (machine_is_davinci_da830_evm()) {
 306                 evm_snd_dev_data = &da830_snd_soc_card;
 307                 index = 1;
 308         } else if (machine_is_davinci_da850_evm()) {
 309                 evm_snd_dev_data = &da850_snd_soc_card;
 310                 index = 0;
 311         } else
 312                 return -EINVAL;
 313
 314         evm_snd_device = platform_device_alloc("soc-audio", index);
 315         if (!evm_snd_device)
 316                 return -ENOMEM;
 317
 318         platform_set_drvdata(evm_snd_device, evm_snd_dev_data);
 319         ret = platform_device_add(evm_snd_device);
 320         if (ret)
 321                 platform_device_put(evm_snd_device);
 322
 323         return ret;
 324 }
 325
 326 static void __exit evm_exit(void)
 327 {
 328         platform_device_unregister(evm_snd_device);
 329 }
 330
 331 module_init(evm_init);
 332 module_exit(evm_exit);
 333
 334 MODULE_AUTHOR("Vladimir Barinov");
 335 MODULE_DESCRIPTION("TI DAVINCI EVM ASoC driver");
 336 MODULE_LICENSE("GPL");