release/src-rt-6.x.4708/linux/linux-2.6.36/sound/soc/s3c24xx/s3c24xx_simtec_hermes.c

   1 /* sound/soc/s3c24xx/s3c24xx_simtec_hermes.c
   2  *
   3  * Copyright 2009 Simtec Electronics
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License version 2 as
   7  * published by the Free Software Foundation.
   8 */
   9
  10 #include <linux/module.h>
  11 #include <linux/clk.h>
  12 #include <linux/platform_device.h>
  13
  14 #include <sound/core.h>
  15 #include <sound/pcm.h>
  16 #include <sound/soc.h>
  17 #include <sound/soc-dapm.h>
  18
  19 #include <plat/audio-simtec.h>
  20
  21 #include "s3c-dma.h"
  22 #include "s3c24xx-i2s.h"
  23 #include "s3c24xx_simtec.h"
  24
  25 #include "../codecs/tlv320aic3x.h"
  26
  27 static const struct snd_soc_dapm_widget dapm_widgets[] = {
  28         SND_SOC_DAPM_LINE("GSM Out", NULL),
  29         SND_SOC_DAPM_LINE("GSM In", NULL),
  30         SND_SOC_DAPM_LINE("Line In", NULL),
  31         SND_SOC_DAPM_LINE("Line Out", NULL),
  32         SND_SOC_DAPM_LINE("ZV", NULL),
  33         SND_SOC_DAPM_MIC("Mic Jack", NULL),
  34         SND_SOC_DAPM_HP("Headphone Jack", NULL),
  35 };
  36
  37 static const struct snd_soc_dapm_route base_map[] = {
  38         /* Headphone connected to HP{L,R}OUT and HP{L,R}COM */
  39
  40         { "Headphone Jack", NULL, "HPLOUT" },
  41         { "Headphone Jack", NULL, "HPLCOM" },
  42         { "Headphone Jack", NULL, "HPROUT" },
  43         { "Headphone Jack", NULL, "HPRCOM" },
  44
  45         /* ZV connected to Line1 */
  46
  47         { "LINE1L", NULL, "ZV" },
  48         { "LINE1R", NULL, "ZV" },
  49
  50         /* Line In connected to Line2 */
  51
  52         { "LINE2L", NULL, "Line In" },
  53         { "LINE2R", NULL, "Line In" },
  54
  55         /* Microphone connected to MIC3R and MIC_BIAS */
  56
  57         { "MIC3L", NULL, "Mic Jack" },
  58
  59         /* GSM connected to MONO_LOUT and MIC3L (in) */
  60
  61         { "GSM Out", NULL, "MONO_LOUT" },
  62         { "MIC3L", NULL, "GSM In" },
  63
  64         /* Speaker is connected to LINEOUT{LN,LP,RN,RP}, however we are
  65          * not using the DAPM to power it up and down as there it makes
  66          * a click when powering up. */
  67 };
  68
  69 /**
  70  * simtec_hermes_init - initialise and add controls
  71  * @codec; The codec instance to attach to.
  72  *
  73  * Attach our controls and configure the necessary codec
  74  * mappings for our sound card instance.
  75 */
  76 static int simtec_hermes_init(struct snd_soc_codec *codec)
  77 {
  78         snd_soc_dapm_new_controls(codec, dapm_widgets,
  79                                   ARRAY_SIZE(dapm_widgets));
  80
  81         snd_soc_dapm_add_routes(codec, base_map, ARRAY_SIZE(base_map));
  82
  83         snd_soc_dapm_enable_pin(codec, "Headphone Jack");
  84         snd_soc_dapm_enable_pin(codec, "Line In");
  85         snd_soc_dapm_enable_pin(codec, "Line Out");
  86         snd_soc_dapm_enable_pin(codec, "Mic Jack");
  87
  88         simtec_audio_init(codec);
  89         snd_soc_dapm_sync(codec);
  90
  91         return 0;
  92 }
  93
  94 static struct aic3x_setup_data codec_setup = {
  95 };
  96
  97 static struct snd_soc_dai_link simtec_dai_aic33 = {
  98         .name           = "tlv320aic33",
  99         .stream_name    = "TLV320AIC33",
 100         .cpu_dai        = &s3c24xx_i2s_dai,
 101         .codec_dai      = &aic3x_dai,
 102         .init           = simtec_hermes_init,
 103 };
 104
 105 /* simtec audio machine driver */
 106 static struct snd_soc_card snd_soc_machine_simtec_aic33 = {
 107         .name           = "Simtec-Hermes",
 108         .platform       = &s3c24xx_soc_platform,
 109         .dai_link       = &simtec_dai_aic33,
 110         .num_links      = 1,
 111 };
 112
 113 /* simtec audio subsystem */
 114 static struct snd_soc_device simtec_snd_devdata_aic33 = {
 115         .card           = &snd_soc_machine_simtec_aic33,
 116         .codec_dev      = &soc_codec_dev_aic3x,
 117         .codec_data     = &codec_setup,
 118 };
 119
 120 static int __devinit simtec_audio_hermes_probe(struct platform_device *pd)
 121 {
 122         dev_info(&pd->dev, "probing....\n");
 123         return simtec_audio_core_probe(pd, &simtec_snd_devdata_aic33);
 124 }
 125
 126 static struct platform_driver simtec_audio_hermes_platdrv = {
 127         .driver = {
 128                 .owner  = THIS_MODULE,
 129                 .name   = "s3c24xx-simtec-hermes-snd",
 130                 .pm     = simtec_audio_pm,
 131         },
 132         .probe  = simtec_audio_hermes_probe,
 133         .remove = __devexit_p(simtec_audio_remove),
 134 };
 135
 136 MODULE_ALIAS("platform:s3c24xx-simtec-hermes-snd");
 137
 138 static int __init simtec_hermes_modinit(void)
 139 {
 140         return platform_driver_register(&simtec_audio_hermes_platdrv);
 141 }
 142
 143 static void __exit simtec_hermes_modexit(void)
 144 {
 145         platform_driver_unregister(&simtec_audio_hermes_platdrv);
 146 }
 147
 148 module_init(simtec_hermes_modinit);
 149 module_exit(simtec_hermes_modexit);
 150
 151 MODULE_AUTHOR("Ben Dooks <ben@simtec.co.uk>");
 152 MODULE_DESCRIPTION("ALSA SoC Simtec Audio support");
 153 MODULE_LICENSE("GPL");