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 <asm/hardware/asp.h>
  26 #include <mach/edma.h>
  27
  28 #include "davinci-pcm.h"
  29 #include "davinci-i2s.h"
  30 #include "davinci-mcasp.h"
  31
  32 #define AUDIO_FORMAT (SND_SOC_DAIFMT_DSP_B | \
  33                 SND_SOC_DAIFMT_CBM_CFM | SND_SOC_DAIFMT_IB_NF)
  34 static int evm_hw_params(struct snd_pcm_substream *substream,
  35                          struct snd_pcm_hw_params *params)
  36 {
  37         struct snd_soc_pcm_runtime *rtd = substream->private_data;
  38         struct snd_soc_dai *codec_dai = rtd->codec_dai;
  39         struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
  40         int ret = 0;
  41         unsigned sysclk;
  42
  43         /* ASP1 on DM355 EVM is clocked by an external oscillator */
  44         if (machine_is_davinci_dm355_evm() || machine_is_davinci_dm6467_evm() ||
  45             machine_is_davinci_dm365_evm())
  46                 sysclk = 27000000;
  47
  48         /* ASP0 in DM6446 EVM is clocked by U55, as configured by
  49          * board-dm644x-evm.c using GPIOs from U18.  There are six
  50          * options; here we "know" we use a 48 KHz sample rate.
  51          */
  52         else if (machine_is_davinci_evm())
  53                 sysclk = 12288000;
  54
  55         else if (machine_is_davinci_da830_evm() ||
  56                                 machine_is_davinci_da850_evm())
  57                 sysclk = 24576000;
  58
  59         else
  60                 return -EINVAL;
  61
  62         /* set codec DAI configuration */
  63         ret = snd_soc_dai_set_fmt(codec_dai, AUDIO_FORMAT);
  64         if (ret < 0)
  65                 return ret;
  66
  67         /* set cpu DAI configuration */
  68         ret = snd_soc_dai_set_fmt(cpu_dai, AUDIO_FORMAT);
  69         if (ret < 0)
  70                 return ret;
  71
  72         /* set the codec system clock */
  73         ret = snd_soc_dai_set_sysclk(codec_dai, 0, sysclk, SND_SOC_CLOCK_OUT);
  74         if (ret < 0)
  75                 return ret;
  76
  77         return 0;
  78 }
  79
  80 static int evm_spdif_hw_params(struct snd_pcm_substream *substream,
  81                                 struct snd_pcm_hw_params *params)
  82 {
  83         struct snd_soc_pcm_runtime *rtd = substream->private_data;
  84         struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
  85
  86         /* set cpu DAI configuration */
  87         return snd_soc_dai_set_fmt(cpu_dai, AUDIO_FORMAT);
  88 }
  89
  90 static struct snd_soc_ops evm_ops = {
  91         .hw_params = evm_hw_params,
  92 };
  93
  94 static struct snd_soc_ops evm_spdif_ops = {
  95         .hw_params = evm_spdif_hw_params,
  96 };
  97
  98 /* davinci-evm machine dapm widgets */
  99 static const struct snd_soc_dapm_widget aic3x_dapm_widgets[] = {
 100         SND_SOC_DAPM_HP("Headphone Jack", NULL),
 101         SND_SOC_DAPM_LINE("Line Out", NULL),
 102         SND_SOC_DAPM_MIC("Mic Jack", NULL),
 103         SND_SOC_DAPM_LINE("Line In", NULL),
 104 };
 105
 106 /* davinci-evm machine audio_mapnections to the codec pins */
 107 static const struct snd_soc_dapm_route audio_map[] = {
 108         /* Headphone connected to HPLOUT, HPROUT */
 109         {"Headphone Jack", NULL, "HPLOUT"},
 110         {"Headphone Jack", NULL, "HPROUT"},
 111
 112         /* Line Out connected to LLOUT, RLOUT */
 113         {"Line Out", NULL, "LLOUT"},
 114         {"Line Out", NULL, "RLOUT"},
 115
 116         /* Mic connected to (MIC3L | MIC3R) */
 117         {"MIC3L", NULL, "Mic Bias 2V"},
 118         {"MIC3R", NULL, "Mic Bias 2V"},
 119         {"Mic Bias 2V", NULL, "Mic Jack"},
 120
 121         /* Line In connected to (LINE1L | LINE2L), (LINE1R | LINE2R) */
 122         {"LINE1L", NULL, "Line In"},
 123         {"LINE2L", NULL, "Line In"},
 124         {"LINE1R", NULL, "Line In"},
 125         {"LINE2R", NULL, "Line In"},
 126 };
 127
 128 /* Logic for a aic3x as connected on a davinci-evm */
 129 static int evm_aic3x_init(struct snd_soc_pcm_runtime *rtd)
 130 {
 131         struct snd_soc_codec *codec = rtd->codec;
 132         struct snd_soc_dapm_context *dapm = &codec->dapm;
 133
 134         /* Add davinci-evm specific widgets */
 135         snd_soc_dapm_new_controls(dapm, aic3x_dapm_widgets,
 136                                   ARRAY_SIZE(aic3x_dapm_widgets));
 137
 138         /* Set up davinci-evm specific audio path audio_map */
 139         snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
 140
 141         /* not connected */
 142         snd_soc_dapm_disable_pin(dapm, "MONO_LOUT");
 143         snd_soc_dapm_disable_pin(dapm, "HPLCOM");
 144         snd_soc_dapm_disable_pin(dapm, "HPRCOM");
 145
 146         /* always connected */
 147         snd_soc_dapm_enable_pin(dapm, "Headphone Jack");
 148         snd_soc_dapm_enable_pin(dapm, "Line Out");
 149         snd_soc_dapm_enable_pin(dapm, "Mic Jack");
 150         snd_soc_dapm_enable_pin(dapm, "Line In");
 151
 152         return 0;
 153 }
 154
 155 /* davinci-evm digital audio interface glue - connects codec <--> CPU */
 156 static struct snd_soc_dai_link dm6446_evm_dai = {
 157         .name = "TLV320AIC3X",
 158         .stream_name = "AIC3X",
 159         .cpu_dai_name = "davinci-mcbsp",
 160         .codec_dai_name = "tlv320aic3x-hifi",
 161         .codec_name = "tlv320aic3x-codec.1-001b",
 162         .platform_name = "davinci-pcm-audio",
 163         .init = evm_aic3x_init,
 164         .ops = &evm_ops,
 165 };
 166
 167 static struct snd_soc_dai_link dm355_evm_dai = {
 168         .name = "TLV320AIC3X",
 169         .stream_name = "AIC3X",
 170         .cpu_dai_name = "davinci-mcbsp.1",
 171         .codec_dai_name = "tlv320aic3x-hifi",
 172         .codec_name = "tlv320aic3x-codec.1-001b",
 173         .platform_name = "davinci-pcm-audio",
 174         .init = evm_aic3x_init,
 175         .ops = &evm_ops,
 176 };
 177
 178 static struct snd_soc_dai_link dm365_evm_dai = {
 179 #ifdef CONFIG_SND_DM365_AIC3X_CODEC
 180         .name = "TLV320AIC3X",
 181         .stream_name = "AIC3X",
 182         .cpu_dai_name = "davinci-mcbsp",
 183         .codec_dai_name = "tlv320aic3x-hifi",
 184         .init = evm_aic3x_init,
 185         .codec_name = "tlv320aic3x-codec.1-0018",
 186         .ops = &evm_ops,
 187 #elif defined(CONFIG_SND_DM365_VOICE_CODEC)
 188         .name = "Voice Codec - CQ93VC",
 189         .stream_name = "CQ93",
 190         .cpu_dai_name = "davinci-vcif",
 191         .codec_dai_name = "cq93vc-hifi",
 192         .codec_name = "cq93vc-codec",
 193 #endif
 194         .platform_name = "davinci-pcm-audio",
 195 };
 196
 197 static struct snd_soc_dai_link dm6467_evm_dai[] = {
 198         {
 199                 .name = "TLV320AIC3X",
 200                 .stream_name = "AIC3X",
 201                 .cpu_dai_name= "davinci-mcasp.0",
 202                 .codec_dai_name = "tlv320aic3x-hifi",
 203                 .platform_name ="davinci-pcm-audio",
 204                 .codec_name = "tlv320aic3x-codec.0-001a",
 205                 .init = evm_aic3x_init,
 206                 .ops = &evm_ops,
 207         },
 208         {
 209                 .name = "McASP",
 210                 .stream_name = "spdif",
 211                 .cpu_dai_name= "davinci-mcasp.1",
 212                 .codec_dai_name = "dit-hifi",
 213                 .codec_name = "spdif_dit",
 214                 .platform_name = "davinci-pcm-audio",
 215                 .ops = &evm_spdif_ops,
 216         },
 217 };
 218
 219 static struct snd_soc_dai_link da830_evm_dai = {
 220         .name = "TLV320AIC3X",
 221         .stream_name = "AIC3X",
 222         .cpu_dai_name = "davinci-mcasp.1",
 223         .codec_dai_name = "tlv320aic3x-hifi",
 224         .codec_name = "tlv320aic3x-codec.1-0018",
 225         .platform_name = "davinci-pcm-audio",
 226         .init = evm_aic3x_init,
 227         .ops = &evm_ops,
 228 };
 229
 230 static struct snd_soc_dai_link da850_evm_dai = {
 231         .name = "TLV320AIC3X",
 232         .stream_name = "AIC3X",
 233         .cpu_dai_name= "davinci-mcasp.0",
 234         .codec_dai_name = "tlv320aic3x-hifi",
 235         .codec_name = "tlv320aic3x-codec.1-0018",
 236         .platform_name = "davinci-pcm-audio",
 237         .init = evm_aic3x_init,
 238         .ops = &evm_ops,
 239 };
 240
 241 /* davinci dm6446 evm audio machine driver */
 242 static struct snd_soc_card dm6446_snd_soc_card_evm = {
 243         .name = "DaVinci DM6446 EVM",
 244         .dai_link = &dm6446_evm_dai,
 245         .num_links = 1,
 246 };
 247
 248 /* davinci dm355 evm audio machine driver */
 249 static struct snd_soc_card dm355_snd_soc_card_evm = {
 250         .name = "DaVinci DM355 EVM",
 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         .dai_link = &dm365_evm_dai,
 259         .num_links = 1,
 260 };
 261
 262 /* davinci dm6467 evm audio machine driver */
 263 static struct snd_soc_card dm6467_snd_soc_card_evm = {
 264         .name = "DaVinci DM6467 EVM",
 265         .dai_link = dm6467_evm_dai,
 266         .num_links = ARRAY_SIZE(dm6467_evm_dai),
 267 };
 268
 269 static struct snd_soc_card da830_snd_soc_card = {
 270         .name = "DA830/OMAP-L137 EVM",
 271         .dai_link = &da830_evm_dai,
 272         .num_links = 1,
 273 };
 274
 275 static struct snd_soc_card da850_snd_soc_card = {
 276         .name = "DA850/OMAP-L138 EVM",
 277         .dai_link = &da850_evm_dai,
 278         .num_links = 1,
 279 };
 280
 281 static struct platform_device *evm_snd_device;
 282
 283 static int __init evm_init(void)
 284 {
 285         struct snd_soc_card *evm_snd_dev_data;
 286         int index;
 287         int ret;
 288
 289         if (machine_is_davinci_evm()) {
 290                 evm_snd_dev_data = &dm6446_snd_soc_card_evm;
 291                 index = 0;
 292         } else if (machine_is_davinci_dm355_evm()) {
 293                 evm_snd_dev_data = &dm355_snd_soc_card_evm;
 294                 index = 1;
 295         } else if (machine_is_davinci_dm365_evm()) {
 296                 evm_snd_dev_data = &dm365_snd_soc_card_evm;
 297                 index = 0;
 298         } else if (machine_is_davinci_dm6467_evm()) {
 299                 evm_snd_dev_data = &dm6467_snd_soc_card_evm;
 300                 index = 0;
 301         } else if (machine_is_davinci_da830_evm()) {
 302                 evm_snd_dev_data = &da830_snd_soc_card;
 303                 index = 1;
 304         } else if (machine_is_davinci_da850_evm()) {
 305                 evm_snd_dev_data = &da850_snd_soc_card;
 306                 index = 0;
 307         } else
 308                 return -EINVAL;
 309
 310         evm_snd_device = platform_device_alloc("soc-audio", index);
 311         if (!evm_snd_device)
 312                 return -ENOMEM;
 313
 314         platform_set_drvdata(evm_snd_device, evm_snd_dev_data);
 315         ret = platform_device_add(evm_snd_device);
 316         if (ret)
 317                 platform_device_put(evm_snd_device);
 318
 319         return ret;
 320 }
 321
 322 static void __exit evm_exit(void)
 323 {
 324         platform_device_unregister(evm_snd_device);
 325 }
 326
 327 module_init(evm_init);
 328 module_exit(evm_exit);
 329
 330 MODULE_AUTHOR("Vladimir Barinov");
 331 MODULE_DESCRIPTION("TI DAVINCI EVM ASoC driver");
 332 MODULE_LICENSE("GPL");