release/src-rt-6.x.4708/linux/linux-2.6.36/sound/soc/s3c24xx/s3c24xx_simtec_tlv320aic23.c

   1 /* sound/soc/s3c24xx/s3c24xx_simtec_tlv320aic23.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/tlv320aic23.h"
  26
  27 /* supported machines:
  28  *
  29  * Machine      Connections             AMP
  30  * -------      -----------             ---
  31  * BAST         MIC, HPOUT, LOUT, LIN   TPA2001D1 (HPOUTL,R) (gain hardwired)
  32  * VR1000       HPOUT, LIN              None
  33  * VR2000       LIN, LOUT, MIC, HP      LM4871 (HPOUTL,R)
  34  * DePicture    LIN, LOUT, MIC, HP      LM4871 (HPOUTL,R)
  35  * Anubis       LIN, LOUT, MIC, HP      TPA2001D1 (HPOUTL,R)
  36  */
  37
  38 static const struct snd_soc_dapm_widget dapm_widgets[] = {
  39         SND_SOC_DAPM_HP("Headphone Jack", NULL),
  40         SND_SOC_DAPM_LINE("Line In", NULL),
  41         SND_SOC_DAPM_LINE("Line Out", NULL),
  42         SND_SOC_DAPM_MIC("Mic Jack", NULL),
  43 };
  44
  45 static const struct snd_soc_dapm_route base_map[] = {
  46         { "Headphone Jack", NULL, "LHPOUT"},
  47         { "Headphone Jack", NULL, "RHPOUT"},
  48
  49         { "Line Out", NULL, "LOUT" },
  50         { "Line Out", NULL, "ROUT" },
  51
  52         { "LLINEIN", NULL, "Line In"},
  53         { "RLINEIN", NULL, "Line In"},
  54
  55         { "MICIN", NULL, "Mic Jack"},
  56 };
  57
  58 /**
  59  * simtec_tlv320aic23_init - initialise and add controls
  60  * @codec; The codec instance to attach to.
  61  *
  62  * Attach our controls and configure the necessary codec
  63  * mappings for our sound card instance.
  64 */
  65 static int simtec_tlv320aic23_init(struct snd_soc_codec *codec)
  66 {
  67         snd_soc_dapm_new_controls(codec, dapm_widgets,
  68                                   ARRAY_SIZE(dapm_widgets));
  69
  70         snd_soc_dapm_add_routes(codec, base_map, ARRAY_SIZE(base_map));
  71
  72         snd_soc_dapm_enable_pin(codec, "Headphone Jack");
  73         snd_soc_dapm_enable_pin(codec, "Line In");
  74         snd_soc_dapm_enable_pin(codec, "Line Out");
  75         snd_soc_dapm_enable_pin(codec, "Mic Jack");
  76
  77         simtec_audio_init(codec);
  78         snd_soc_dapm_sync(codec);
  79
  80         return 0;
  81 }
  82
  83 static struct snd_soc_dai_link simtec_dai_aic23 = {
  84         .name           = "tlv320aic23",
  85         .stream_name    = "TLV320AIC23",
  86         .cpu_dai        = &s3c24xx_i2s_dai,
  87         .codec_dai      = &tlv320aic23_dai,
  88         .init           = simtec_tlv320aic23_init,
  89 };
  90
  91 /* simtec audio machine driver */
  92 static struct snd_soc_card snd_soc_machine_simtec_aic23 = {
  93         .name           = "Simtec",
  94         .platform       = &s3c24xx_soc_platform,
  95         .dai_link       = &simtec_dai_aic23,
  96         .num_links      = 1,
  97 };
  98
  99 /* simtec audio subsystem */
 100 static struct snd_soc_device simtec_snd_devdata_aic23 = {
 101         .card           = &snd_soc_machine_simtec_aic23,
 102         .codec_dev      = &soc_codec_dev_tlv320aic23,
 103 };
 104
 105 static int __devinit simtec_audio_tlv320aic23_probe(struct platform_device *pd)
 106 {
 107         return simtec_audio_core_probe(pd, &simtec_snd_devdata_aic23);
 108 }
 109
 110 static struct platform_driver simtec_audio_tlv320aic23_platdrv = {
 111         .driver = {
 112                 .owner  = THIS_MODULE,
 113                 .name   = "s3c24xx-simtec-tlv320aic23",
 114                 .pm     = simtec_audio_pm,
 115         },
 116         .probe  = simtec_audio_tlv320aic23_probe,
 117         .remove = __devexit_p(simtec_audio_remove),
 118 };
 119
 120 MODULE_ALIAS("platform:s3c24xx-simtec-tlv320aic23");
 121
 122 static int __init simtec_tlv320aic23_modinit(void)
 123 {
 124         return platform_driver_register(&simtec_audio_tlv320aic23_platdrv);
 125 }
 126
 127 static void __exit simtec_tlv320aic23_modexit(void)
 128 {
 129         platform_driver_unregister(&simtec_audio_tlv320aic23_platdrv);
 130 }
 131
 132 module_init(simtec_tlv320aic23_modinit);
 133 module_exit(simtec_tlv320aic23_modexit);
 134
 135 MODULE_AUTHOR("Ben Dooks <ben@simtec.co.uk>");
 136 MODULE_DESCRIPTION("ALSA SoC Simtec Audio support");
 137 MODULE_LICENSE("GPL");