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 #include <sound/soc-dapm.h>
  22
  23 #include <asm/dma.h>
  24 #include <asm/mach-types.h>
  25
  26 #include <mach/asp.h>
  27 #include <mach/edma.h>
  28 #include <mach/mux.h>
  29
  30 #include "../codecs/tlv320aic3x.h"
  31 #include "../codecs/cq93vc.h"
  32 #include "../codecs/spdif_transciever.h"
  33 #include "davinci-pcm.h"
  34 #include "davinci-i2s.h"
  35 #include "davinci-mcasp.h"
  36 #include "davinci-vcif.h"
  37
  38 #define AUDIO_FORMAT (SND_SOC_DAIFMT_DSP_B | \
  39                 SND_SOC_DAIFMT_CBM_CFM | SND_SOC_DAIFMT_IB_NF)
  40 static int evm_hw_params(struct snd_pcm_substream *substream,
  41                          struct snd_pcm_hw_params *params)
  42 {
  43         struct snd_soc_pcm_runtime *rtd = substream->private_data;
  44         struct snd_soc_dai *codec_dai = rtd->dai->codec_dai;
  45         struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
  46         int ret = 0;
  47         unsigned sysclk;
  48
  49         /* ASP1 on DM355 EVM is clocked by an external oscillator */
  50         if (machine_is_davinci_dm355_evm() || machine_is_davinci_dm6467_evm() ||
  51             machine_is_davinci_dm365_evm())
  52                 sysclk = 27000000;
  53
  54         /* ASP0 in DM6446 EVM is clocked by U55, as configured by
  55          * board-dm644x-evm.c using GPIOs from U18.  There are six
  56          * options; here we "know" we use a 48 KHz sample rate.
  57          */
  58         else if (machine_is_davinci_evm())
  59                 sysclk = 12288000;
  60
  61         else if (machine_is_davinci_da830_evm() ||
  62                                 machine_is_davinci_da850_evm())
  63                 sysclk = 24576000;
  64
  65         else
  66                 return -EINVAL;
  67
  68         /* set codec DAI configuration */
  69         ret = snd_soc_dai_set_fmt(codec_dai, AUDIO_FORMAT);
  70         if (ret < 0)
  71                 return ret;
  72
  73         /* set cpu DAI configuration */
  74         ret = snd_soc_dai_set_fmt(cpu_dai, AUDIO_FORMAT);
  75         if (ret < 0)
  76                 return ret;
  77
  78         /* set the codec system clock */
  79         ret = snd_soc_dai_set_sysclk(codec_dai, 0, sysclk, SND_SOC_CLOCK_OUT);
  80         if (ret < 0)
  81                 return ret;
  82
  83         return 0;
  84 }
  85
  86 static int evm_spdif_hw_params(struct snd_pcm_substream *substream,
  87                                 struct snd_pcm_hw_params *params)
  88 {
  89         struct snd_soc_pcm_runtime *rtd = substream->private_data;
  90         struct snd_soc_dai *cpu_dai = rtd->dai->cpu_dai;
  91
  92         /* set cpu DAI configuration */
  93         return snd_soc_dai_set_fmt(cpu_dai, AUDIO_FORMAT);
  94 }
  95
  96 static struct snd_soc_ops evm_ops = {
  97         .hw_params = evm_hw_params,
  98 };
  99
 100 static struct snd_soc_ops evm_spdif_ops = {
 101         .hw_params = evm_spdif_hw_params,
 102 };
 103
 104 /* davinci-evm machine dapm widgets */
 105 static const struct snd_soc_dapm_widget aic3x_dapm_widgets[] = {
 106         SND_SOC_DAPM_HP("Headphone Jack", NULL),
 107         SND_SOC_DAPM_LINE("Line Out", NULL),
 108         SND_SOC_DAPM_MIC("Mic Jack", NULL),
 109         SND_SOC_DAPM_LINE("Line In", NULL),
 110 };
 111
 112 /* davinci-evm machine audio_mapnections to the codec pins */
 113 static const struct snd_soc_dapm_route audio_map[] = {
 114         /* Headphone connected to HPLOUT, HPROUT */
 115         {"Headphone Jack", NULL, "HPLOUT"},
 116         {"Headphone Jack", NULL, "HPROUT"},
 117
 118         /* Line Out connected to LLOUT, RLOUT */
 119         {"Line Out", NULL, "LLOUT"},
 120         {"Line Out", NULL, "RLOUT"},
 121
 122         /* Mic connected to (MIC3L | MIC3R) */
 123         {"MIC3L", NULL, "Mic Bias 2V"},
 124         {"MIC3R", NULL, "Mic Bias 2V"},
 125         {"Mic Bias 2V", NULL, "Mic Jack"},
 126
 127         /* Line In connected to (LINE1L | LINE2L), (LINE1R | LINE2R) */
 128         {"LINE1L", NULL, "Line In"},
 129         {"LINE2L", NULL, "Line In"},
 130         {"LINE1R", NULL, "Line In"},
 131         {"LINE2R", NULL, "Line In"},
 132 };
 133
 134 /* Logic for a aic3x as connected on a davinci-evm */
 135 static int evm_aic3x_init(struct snd_soc_codec *codec)
 136 {
 137         /* Add davinci-evm specific widgets */
 138         snd_soc_dapm_new_controls(codec, 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(codec, audio_map, ARRAY_SIZE(audio_map));
 143
 144         /* not connected */
 145         snd_soc_dapm_disable_pin(codec, "MONO_LOUT");
 146         snd_soc_dapm_disable_pin(codec, "HPLCOM");
 147         snd_soc_dapm_disable_pin(codec, "HPRCOM");
 148
 149         /* always connected */
 150         snd_soc_dapm_enable_pin(codec, "Headphone Jack");
 151         snd_soc_dapm_enable_pin(codec, "Line Out");
 152         snd_soc_dapm_enable_pin(codec, "Mic Jack");
 153         snd_soc_dapm_enable_pin(codec, "Line In");
 154
 155         snd_soc_dapm_sync(codec);
 156
 157         return 0;
 158 }
 159
 160 /* davinci-evm digital audio interface glue - connects codec <--> CPU */
 161 static struct snd_soc_dai_link evm_dai = {
 162         .name = "TLV320AIC3X",
 163         .stream_name = "AIC3X",
 164         .cpu_dai = &davinci_i2s_dai,
 165         .codec_dai = &aic3x_dai,
 166         .init = evm_aic3x_init,
 167         .ops = &evm_ops,
 168 };
 169
 170 static struct snd_soc_dai_link dm365_evm_dai = {
 171 #ifdef CONFIG_SND_DM365_AIC3X_CODEC
 172         .name = "TLV320AIC3X",
 173         .stream_name = "AIC3X",
 174         .cpu_dai = &davinci_i2s_dai,
 175         .codec_dai = &aic3x_dai,
 176         .init = evm_aic3x_init,
 177         .ops = &evm_ops,
 178 #elif defined(CONFIG_SND_DM365_VOICE_CODEC)
 179         .name = "Voice Codec - CQ93VC",
 180         .stream_name = "CQ93",
 181         .cpu_dai = &davinci_vcif_dai,
 182         .codec_dai = &cq93vc_dai,
 183 #endif
 184 };
 185
 186 static struct snd_soc_dai_link dm6467_evm_dai[] = {
 187         {
 188                 .name = "TLV320AIC3X",
 189                 .stream_name = "AIC3X",
 190                 .cpu_dai = &davinci_mcasp_dai[DAVINCI_MCASP_I2S_DAI],
 191                 .codec_dai = &aic3x_dai,
 192                 .init = evm_aic3x_init,
 193                 .ops = &evm_ops,
 194         },
 195         {
 196                 .name = "McASP",
 197                 .stream_name = "spdif",
 198                 .cpu_dai = &davinci_mcasp_dai[DAVINCI_MCASP_DIT_DAI],
 199                 .codec_dai = &dit_stub_dai,
 200                 .ops = &evm_spdif_ops,
 201         },
 202 };
 203 static struct snd_soc_dai_link da8xx_evm_dai = {
 204         .name = "TLV320AIC3X",
 205         .stream_name = "AIC3X",
 206         .cpu_dai = &davinci_mcasp_dai[DAVINCI_MCASP_I2S_DAI],
 207         .codec_dai = &aic3x_dai,
 208         .init = evm_aic3x_init,
 209         .ops = &evm_ops,
 210 };
 211
 212 /* davinci dm6446, dm355 evm audio machine driver */
 213 static struct snd_soc_card snd_soc_card_evm = {
 214         .name = "DaVinci EVM",
 215         .platform = &davinci_soc_platform,
 216         .dai_link = &evm_dai,
 217         .num_links = 1,
 218 };
 219
 220 /* davinci dm365 evm audio machine driver */
 221 static struct snd_soc_card dm365_snd_soc_card_evm = {
 222         .name = "DaVinci DM365 EVM",
 223         .platform = &davinci_soc_platform,
 224         .dai_link = &dm365_evm_dai,
 225         .num_links = 1,
 226 };
 227
 228
 229 /* davinci dm6467 evm audio machine driver */
 230 static struct snd_soc_card dm6467_snd_soc_card_evm = {
 231         .name = "DaVinci DM6467 EVM",
 232         .platform = &davinci_soc_platform,
 233         .dai_link = dm6467_evm_dai,
 234         .num_links = ARRAY_SIZE(dm6467_evm_dai),
 235 };
 236
 237 static struct snd_soc_card da830_snd_soc_card = {
 238         .name = "DA830/OMAP-L137 EVM",
 239         .dai_link = &da8xx_evm_dai,
 240         .platform = &davinci_soc_platform,
 241         .num_links = 1,
 242 };
 243
 244 static struct snd_soc_card da850_snd_soc_card = {
 245         .name = "DA850/OMAP-L138 EVM",
 246         .dai_link = &da8xx_evm_dai,
 247         .platform = &davinci_soc_platform,
 248         .num_links = 1,
 249 };
 250
 251 static struct aic3x_setup_data aic3x_setup;
 252
 253 /* evm audio subsystem */
 254 static struct snd_soc_device evm_snd_devdata = {
 255         .card = &snd_soc_card_evm,
 256         .codec_dev = &soc_codec_dev_aic3x,
 257         .codec_data = &aic3x_setup,
 258 };
 259
 260 /* evm audio subsystem */
 261 static struct snd_soc_device dm365_evm_snd_devdata = {
 262         .card = &dm365_snd_soc_card_evm,
 263 #ifdef CONFIG_SND_DM365_AIC3X_CODEC
 264         .codec_dev = &soc_codec_dev_aic3x,
 265         .codec_data = &aic3x_setup,
 266 #elif defined(CONFIG_SND_DM365_VOICE_CODEC)
 267         .codec_dev = &soc_codec_dev_cq93vc,
 268 #endif
 269 };
 270
 271 /* evm audio subsystem */
 272 static struct snd_soc_device dm6467_evm_snd_devdata = {
 273         .card = &dm6467_snd_soc_card_evm,
 274         .codec_dev = &soc_codec_dev_aic3x,
 275         .codec_data = &aic3x_setup,
 276 };
 277
 278 /* evm audio subsystem */
 279 static struct snd_soc_device da830_evm_snd_devdata = {
 280         .card = &da830_snd_soc_card,
 281         .codec_dev = &soc_codec_dev_aic3x,
 282         .codec_data = &aic3x_setup,
 283 };
 284
 285 static struct snd_soc_device da850_evm_snd_devdata = {
 286         .card           = &da850_snd_soc_card,
 287         .codec_dev      = &soc_codec_dev_aic3x,
 288         .codec_data     = &aic3x_setup,
 289 };
 290
 291 static struct platform_device *evm_snd_device;
 292
 293 static int __init evm_init(void)
 294 {
 295         struct snd_soc_device *evm_snd_dev_data;
 296         int index;
 297         int ret;
 298
 299         if (machine_is_davinci_evm()) {
 300                 evm_snd_dev_data = &evm_snd_devdata;
 301                 index = 0;
 302         } else if (machine_is_davinci_dm355_evm()) {
 303                 evm_snd_dev_data = &evm_snd_devdata;
 304                 index = 1;
 305         } else if (machine_is_davinci_dm365_evm()) {
 306                 evm_snd_dev_data = &dm365_evm_snd_devdata;
 307                 index = 0;
 308         } else if (machine_is_davinci_dm6467_evm()) {
 309                 evm_snd_dev_data = &dm6467_evm_snd_devdata;
 310                 index = 0;
 311         } else if (machine_is_davinci_da830_evm()) {
 312                 evm_snd_dev_data = &da830_evm_snd_devdata;
 313                 index = 1;
 314         } else if (machine_is_davinci_da850_evm()) {
 315                 evm_snd_dev_data = &da850_evm_snd_devdata;
 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         evm_snd_dev_data->dev = &evm_snd_device->dev;
 326         ret = platform_device_add(evm_snd_device);
 327         if (ret)
 328                 platform_device_put(evm_snd_device);
 329
 330         return ret;
 331 }
 332
 333 static void __exit evm_exit(void)
 334 {
 335         platform_device_unregister(evm_snd_device);
 336 }
 337
 338 module_init(evm_init);
 339 module_exit(evm_exit);
 340
 341 MODULE_AUTHOR("Vladimir Barinov");
 342 MODULE_DESCRIPTION("TI DAVINCI EVM ASoC driver");
 343 MODULE_LICENSE("GPL");