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 <mach/asp.h>
  26 #include <mach/edma.h>
  27 #include <mach/mux.h>
  28
  29 #include "davinci-pcm.h"
  30 #include "davinci-i2s.h"
  31 #include "davinci-mcasp.h"
  32
  33 #define AUDIO_FORMAT (SND_SOC_DAIFMT_DSP_B | \
  34                 SND_SOC_DAIFMT_CBM_CFM | SND_SOC_DAIFMT_IB_NF)
  35 static int evm_hw_params(struct snd_pcm_substream *substream,
  36                          struct snd_pcm_hw_params *params)
  37 {
  38         struct snd_soc_pcm_runtime *rtd = substream->private_data;
  39         struct snd_soc_dai *codec_dai = rtd->codec_dai;
  40         struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
  41         int ret = 0;
  42         unsigned sysclk;
  43
  44         /* ASP1 on DM355 EVM is clocked by an external oscillator */
  45         if (machine_is_davinci_dm355_evm() || machine_is_davinci_dm6467_evm() ||
  46             machine_is_davinci_dm365_evm())
  47                 sysclk = 27000000;
  48
  49         /* ASP0 in DM6446 EVM is clocked by U55, as configured by
  50          * board-dm644x-evm.c using GPIOs from U18.  There are six
  51          * options; here we "know" we use a 48 KHz sample rate.
  52          */
  53         else if (machine_is_davinci_evm())
  54                 sysclk = 12288000;
  55
  56         else if (machine_is_davinci_da830_evm() ||
  57                                 machine_is_davinci_da850_evm())
  58                 sysclk = 24576000;
  59
  60         else
  61                 return -EINVAL;
  62
  63         /* set codec DAI configuration */
  64         ret = snd_soc_dai_set_fmt(codec_dai, AUDIO_FORMAT);
  65         if (ret < 0)
  66                 return ret;
  67
  68         /* set cpu DAI configuration */
  69         ret = snd_soc_dai_set_fmt(cpu_dai, AUDIO_FORMAT);
  70         if (ret < 0)
  71                 return ret;
  72
  73         /* set the codec system clock */
  74         ret = snd_soc_dai_set_sysclk(codec_dai, 0, sysclk, SND_SOC_CLOCK_OUT);
  75         if (ret < 0)
  76                 return ret;
  77
  78         return 0;
  79 }
  80
  81 static int evm_spdif_hw_params(struct snd_pcm_substream *substream,
  82                                 struct snd_pcm_hw_params *params)
  83 {
  84         struct snd_soc_pcm_runtime *rtd = substream->private_data;
  85         struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
  86
  87         /* set cpu DAI configuration */
  88         return snd_soc_dai_set_fmt(cpu_dai, AUDIO_FORMAT);
  89 }
  90
  91 static struct snd_soc_ops evm_ops = {
  92         .hw_params = evm_hw_params,
  93 };
  94
  95 static struct snd_soc_ops evm_spdif_ops = {
  96         .hw_params = evm_spdif_hw_params,
  97 };
  98
  99 /* davinci-evm machine dapm widgets */
 100 static const struct snd_soc_dapm_widget aic3x_dapm_widgets[] = {
 101         SND_SOC_DAPM_HP("Headphone Jack", NULL),
 102         SND_SOC_DAPM_LINE("Line Out", NULL),
 103         SND_SOC_DAPM_MIC("Mic Jack", NULL),
 104         SND_SOC_DAPM_LINE("Line In", NULL),
 105 };
 106
 107 /* davinci-evm machine audio_mapnections to the codec pins */
 108 static const struct snd_soc_dapm_route audio_map[] = {
 109         /* Headphone connected to HPLOUT, HPROUT */
 110         {"Headphone Jack", NULL, "HPLOUT"},
 111         {"Headphone Jack", NULL, "HPROUT"},
 112
 113         /* Line Out connected to LLOUT, RLOUT */
 114         {"Line Out", NULL, "LLOUT"},
 115         {"Line Out", NULL, "RLOUT"},
 116
 117         /* Mic connected to (MIC3L | MIC3R) */
 118         {"MIC3L", NULL, "Mic Bias 2V"},
 119         {"MIC3R", NULL, "Mic Bias 2V"},
 120         {"Mic Bias 2V", NULL, "Mic Jack"},
 121
 122         /* Line In connected to (LINE1L | LINE2L), (LINE1R | LINE2R) */
 123         {"LINE1L", NULL, "Line In"},
 124         {"LINE2L", NULL, "Line In"},
 125         {"LINE1R", NULL, "Line In"},
 126         {"LINE2R", NULL, "Line In"},
 127 };
 128
 129 /* Logic for a aic3x as connected on a davinci-evm */
 130 static int evm_aic3x_init(struct snd_soc_pcm_runtime *rtd)
 131 {
 132         struct snd_soc_codec *codec = rtd->codec;
 133         struct snd_soc_dapm_context *dapm = &codec->dapm;
 134
 135         /* Add davinci-evm specific widgets */
 136         snd_soc_dapm_new_controls(dapm, aic3x_dapm_widgets,
 137                                   ARRAY_SIZE(aic3x_dapm_widgets));
 138
 139         /* Set up davinci-evm specific audio path audio_map */
 140         snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
 141
 142         /* not connected */
 143         snd_soc_dapm_disable_pin(dapm, "MONO_LOUT");
 144         snd_soc_dapm_disable_pin(dapm, "HPLCOM");
 145         snd_soc_dapm_disable_pin(dapm, "HPRCOM");
 146
 147         /* always connected */
 148         snd_soc_dapm_enable_pin(dapm, "Headphone Jack");
 149         snd_soc_dapm_enable_pin(dapm, "Line Out");
 150         snd_soc_dapm_enable_pin(dapm, "Mic Jack");
 151         snd_soc_dapm_enable_pin(dapm, "Line In");
 152
 153         snd_soc_dapm_sync(dapm);
 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-pcm-audio",
 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-pcm-audio",
 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 #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 #endif
 197         .platform_name = "davinci-pcm-audio",
 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-pcm-audio",
 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-pcm-audio",
 218                 .ops = &evm_spdif_ops,
 219         },
 220 };
 221 static struct snd_soc_dai_link da8xx_evm_dai = {
 222         .name = "TLV320AIC3X",
 223         .stream_name = "AIC3X",
 224         .cpu_dai_name= "davinci-mcasp.0",
 225         .codec_dai_name = "tlv320aic3x-hifi",
 226         .codec_name = "tlv320aic3x-codec.1-0018",
 227         .platform_name = "davinci-pcm-audio",
 228         .init = evm_aic3x_init,
 229         .ops = &evm_ops,
 230 };
 231
 232 /* davinci dm6446 evm audio machine driver */
 233 static struct snd_soc_card dm6446_snd_soc_card_evm = {
 234         .name = "DaVinci DM6446 EVM",
 235         .dai_link = &dm6446_evm_dai,
 236         .num_links = 1,
 237 };
 238
 239 /* davinci dm355 evm audio machine driver */
 240 static struct snd_soc_card dm355_snd_soc_card_evm = {
 241         .name = "DaVinci DM355 EVM",
 242         .dai_link = &dm355_evm_dai,
 243         .num_links = 1,
 244 };
 245
 246 /* davinci dm365 evm audio machine driver */
 247 static struct snd_soc_card dm365_snd_soc_card_evm = {
 248         .name = "DaVinci DM365 EVM",
 249         .dai_link = &dm365_evm_dai,
 250         .num_links = 1,
 251 };
 252
 253 /* davinci dm6467 evm audio machine driver */
 254 static struct snd_soc_card dm6467_snd_soc_card_evm = {
 255         .name = "DaVinci DM6467 EVM",
 256         .dai_link = dm6467_evm_dai,
 257         .num_links = ARRAY_SIZE(dm6467_evm_dai),
 258 };
 259
 260 static struct snd_soc_card da830_snd_soc_card = {
 261         .name = "DA830/OMAP-L137 EVM",
 262         .dai_link = &da8xx_evm_dai,
 263         .num_links = 1,
 264 };
 265
 266 static struct snd_soc_card da850_snd_soc_card = {
 267         .name = "DA850/OMAP-L138 EVM",
 268         .dai_link = &da8xx_evm_dai,
 269         .num_links = 1,
 270 };
 271
 272 static struct platform_device *evm_snd_device;
 273
 274 static int __init evm_init(void)
 275 {
 276         struct snd_soc_card *evm_snd_dev_data;
 277         int index;
 278         int ret;
 279
 280         if (machine_is_davinci_evm()) {
 281                 evm_snd_dev_data = &dm6446_snd_soc_card_evm;
 282                 index = 0;
 283         } else if (machine_is_davinci_dm355_evm()) {
 284                 evm_snd_dev_data = &dm355_snd_soc_card_evm;
 285                 index = 1;
 286         } else if (machine_is_davinci_dm365_evm()) {
 287                 evm_snd_dev_data = &dm365_snd_soc_card_evm;
 288                 index = 0;
 289         } else if (machine_is_davinci_dm6467_evm()) {
 290                 evm_snd_dev_data = &dm6467_snd_soc_card_evm;
 291                 index = 0;
 292         } else if (machine_is_davinci_da830_evm()) {
 293                 evm_snd_dev_data = &da830_snd_soc_card;
 294                 index = 1;
 295         } else if (machine_is_davinci_da850_evm()) {
 296                 evm_snd_dev_data = &da850_snd_soc_card;
 297                 index = 0;
 298         } else
 299                 return -EINVAL;
 300
 301         evm_snd_device = platform_device_alloc("soc-audio", index);
 302         if (!evm_snd_device)
 303                 return -ENOMEM;
 304
 305         platform_set_drvdata(evm_snd_device, evm_snd_dev_data);
 306         ret = platform_device_add(evm_snd_device);
 307         if (ret)
 308                 platform_device_put(evm_snd_device);
 309
 310         return ret;
 311 }
 312
 313 static void __exit evm_exit(void)
 314 {
 315         platform_device_unregister(evm_snd_device);
 316 }
 317
 318 module_init(evm_init);
 319 module_exit(evm_exit);
 320
 321 MODULE_AUTHOR("Vladimir Barinov");
 322 MODULE_DESCRIPTION("TI DAVINCI EVM ASoC driver");
 323 MODULE_LICENSE("GPL");