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/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");