Pileus Git - ~andy/linux/blob - 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         /* set the CPU system clock */
  75         ret = snd_soc_dai_set_sysclk(cpu_dai, 0, sysclk, SND_SOC_CLOCK_OUT);
  76         if (ret < 0)
  77                 return ret;
  78
  79         return 0;
  80 }
  81
  82 static int evm_spdif_hw_params(struct snd_pcm_substream *substream,
  83                                 struct snd_pcm_hw_params *params)
  84 {
  85         struct snd_soc_pcm_runtime *rtd = substream->private_data;
  86         struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
  87
  88         /* set cpu DAI configuration */
  89         return snd_soc_dai_set_fmt(cpu_dai, AUDIO_FORMAT);
  90 }
  91
  92 static struct snd_soc_ops evm_ops = {
  93         .hw_params = evm_hw_params,
  94 };
  95
  96 static struct snd_soc_ops evm_spdif_ops = {
  97         .hw_params = evm_spdif_hw_params,
  98 };
  99
 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),
 106 };
 107
 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"},
 113
 114         /* Line Out connected to LLOUT, RLOUT */
 115         {"Line Out", NULL, "LLOUT"},
 116         {"Line Out", NULL, "RLOUT"},
 117
 118         /* Mic connected to (MIC3L | MIC3R) */
 119         {"MIC3L", NULL, "Mic Bias"},
 120         {"MIC3R", NULL, "Mic Bias"},
 121         {"Mic Bias", NULL, "Mic Jack"},
 122
 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"},
 128 };
 129
 130 /* Logic for a aic3x as connected on a davinci-evm */
 131 static int evm_aic3x_init(struct snd_soc_pcm_runtime *rtd)
 132 {
 133         struct snd_soc_codec *codec = rtd->codec;
 134         struct snd_soc_dapm_context *dapm = &codec->dapm;
 135
 136         /* Add davinci-evm specific widgets */
 137         snd_soc_dapm_new_controls(dapm, aic3x_dapm_widgets,
 138                                   ARRAY_SIZE(aic3x_dapm_widgets));
 139
 140         /* Set up davinci-evm specific audio path audio_map */
 141         snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
 142
 143         /* not connected */
 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");
 147
 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");
 153
 154         return 0;
 155 }
 156
 157 /* davinci-evm digital audio interface glue - connects codec <--> CPU */
 158 static struct snd_soc_dai_link dm6446_evm_dai = {
 159         .name = "TLV320AIC3X",
 160         .stream_name = "AIC3X",
 161         .cpu_dai_name = "davinci-mcbsp",
 162         .codec_dai_name = "tlv320aic3x-hifi",
 163         .codec_name = "tlv320aic3x-codec.1-001b",
 164         .platform_name = "davinci-mcbsp",
 165         .init = evm_aic3x_init,
 166         .ops = &evm_ops,
 167 };
 168
 169 static struct snd_soc_dai_link dm355_evm_dai = {
 170         .name = "TLV320AIC3X",
 171         .stream_name = "AIC3X",
 172         .cpu_dai_name = "davinci-mcbsp.1",
 173         .codec_dai_name = "tlv320aic3x-hifi",
 174         .codec_name = "tlv320aic3x-codec.1-001b",
 175         .platform_name = "davinci-mcbsp.1",
 176         .init = evm_aic3x_init,
 177         .ops = &evm_ops,
 178 };
 179
 180 static struct snd_soc_dai_link dm365_evm_dai = {
 181 #ifdef CONFIG_SND_DM365_AIC3X_CODEC
 182         .name = "TLV320AIC3X",
 183         .stream_name = "AIC3X",
 184         .cpu_dai_name = "davinci-mcbsp",
 185         .codec_dai_name = "tlv320aic3x-hifi",
 186         .init = evm_aic3x_init,
 187         .codec_name = "tlv320aic3x-codec.1-0018",
 188         .ops = &evm_ops,
 189         .platform_name = "davinci-mcbsp",
 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         .platform_name = "davinci-vcif",
 197 #endif
 198 };
 199
 200 static struct snd_soc_dai_link dm6467_evm_dai[] = {
 201         {
 202                 .name = "TLV320AIC3X",
 203                 .stream_name = "AIC3X",
 204                 .cpu_dai_name= "davinci-mcasp.0",
 205                 .codec_dai_name = "tlv320aic3x-hifi",
 206                 .platform_name = "davinci-mcasp.0",
 207                 .codec_name = "tlv320aic3x-codec.0-001a",
 208                 .init = evm_aic3x_init,
 209                 .ops = &evm_ops,
 210         },
 211         {
 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-mcasp.1",
 218                 .ops = &evm_spdif_ops,
 219         },
 220 };
 221
 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-mcasp.1",
 229         .init = evm_aic3x_init,
 230         .ops = &evm_ops,
 231 };
 232
 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-mcasp.0",
 240         .init = evm_aic3x_init,
 241         .ops = &evm_ops,
 242 };
 243
 244 /* davinci dm6446 evm audio machine driver */
 245 static struct snd_soc_card dm6446_snd_soc_card_evm = {
 246         .name = "DaVinci DM6446 EVM",
 247         .owner = THIS_MODULE,
 248         .dai_link = &dm6446_evm_dai,
 249         .num_links = 1,
 250 };
 251
 252 /* davinci dm355 evm audio machine driver */
 253 static struct snd_soc_card dm355_snd_soc_card_evm = {
 254         .name = "DaVinci DM355 EVM",
 255         .owner = THIS_MODULE,
 256         .dai_link = &dm355_evm_dai,
 257         .num_links = 1,
 258 };
 259
 260 /* davinci dm365 evm audio machine driver */
 261 static struct snd_soc_card dm365_snd_soc_card_evm = {
 262         .name = "DaVinci DM365 EVM",
 263         .owner = THIS_MODULE,
 264         .dai_link = &dm365_evm_dai,
 265         .num_links = 1,
 266 };
 267
 268 /* davinci dm6467 evm audio machine driver */
 269 static struct snd_soc_card dm6467_snd_soc_card_evm = {
 270         .name = "DaVinci DM6467 EVM",
 271         .owner = THIS_MODULE,
 272         .dai_link = dm6467_evm_dai,
 273         .num_links = ARRAY_SIZE(dm6467_evm_dai),
 274 };
 275
 276 static struct snd_soc_card da830_snd_soc_card = {
 277         .name = "DA830/OMAP-L137 EVM",
 278         .owner = THIS_MODULE,
 279         .dai_link = &da830_evm_dai,
 280         .num_links = 1,
 281 };
 282
 283 static struct snd_soc_card da850_snd_soc_card = {
 284         .name = "DA850/OMAP-L138 EVM",
 285         .owner = THIS_MODULE,
 286         .dai_link = &da850_evm_dai,
 287         .num_links = 1,
 288 };
 289
 290 static struct platform_device *evm_snd_device;
 291
 292 static int __init evm_init(void)
 293 {
 294         struct snd_soc_card *evm_snd_dev_data;
 295         int index;
 296         int ret;
 297
 298         if (machine_is_davinci_evm()) {
 299                 evm_snd_dev_data = &dm6446_snd_soc_card_evm;
 300                 index = 0;
 301         } else if (machine_is_davinci_dm355_evm()) {
 302                 evm_snd_dev_data = &dm355_snd_soc_card_evm;
 303                 index = 1;
 304         } else if (machine_is_davinci_dm365_evm()) {
 305                 evm_snd_dev_data = &dm365_snd_soc_card_evm;
 306                 index = 0;
 307         } else if (machine_is_davinci_dm6467_evm()) {
 308                 evm_snd_dev_data = &dm6467_snd_soc_card_evm;
 309                 index = 0;
 310         } else if (machine_is_davinci_da830_evm()) {
 311                 evm_snd_dev_data = &da830_snd_soc_card;
 312                 index = 1;
 313         } else if (machine_is_davinci_da850_evm()) {
 314                 evm_snd_dev_data = &da850_snd_soc_card;
 315                 index = 0;
 316         } else
 317                 return -EINVAL;
 318
 319         evm_snd_device = platform_device_alloc("soc-audio", index);
 320         if (!evm_snd_device)
 321                 return -ENOMEM;
 322
 323         platform_set_drvdata(evm_snd_device, evm_snd_dev_data);
 324         ret = platform_device_add(evm_snd_device);
 325         if (ret)
 326                 platform_device_put(evm_snd_device);
 327
 328         return ret;
 329 }
 330
 331 static void __exit evm_exit(void)
 332 {
 333         platform_device_unregister(evm_snd_device);
 334 }
 335
 336 module_init(evm_init);
 337 module_exit(evm_exit);
 338
 339 MODULE_AUTHOR("Vladimir Barinov");
 340 MODULE_DESCRIPTION("TI DAVINCI EVM ASoC driver");
 341 MODULE_LICENSE("GPL");