smdk_wm9713.rar_SOC

/* * smdk_wm9713.c -- SoC audio for SMDK * * * This program is free software; you can redistribute it and/or * modify it under the terms of the GNU General Public License as * published by the Free Software Foundation; either version 2 of the * License, or (at your option) any later version. * */ #include <linux/module.h> #include <linux/device.h> #include <sound/soc.h> #include <sound/soc-dapm.h> #include "../codecs/wm9713.h" #include "s3c-dma.h" #include "s3c-ac97.h" static struct snd_soc_card smdk; /* * Default CFG switch settings to use this driver: * * SMDK6410: Set CFG1 1-3 On, CFG2 1-4 Off * SMDKC100: Set CFG6 1-3 On, CFG7 1 On * SMDKC110: Set CFGB10 1-2 Off, CFGB12 1-3 On * SMDKV210: Set CFGB10 1-2 Off, CFGB12 1-3 On */ /* Playback (HeadPhone):- $ amixer sset 'Headphone' unmute $ amixer sset 'Right Headphone Out Mux' 'Headphone' $ amixer sset 'Left Headphone Out Mux' 'Headphone' $ amixer sset 'Right HP Mixer PCM' unmute $ amixer sset 'Left HP Mixer PCM' unmute Capture (LineIn):- $ amixer sset 'Right Capture Source' 'Line' $ amixer sset 'Left Capture Source' 'Line' */ /* Machine dapm widgets */ static const struct snd_soc_dapm_widget smdk_dapm_widgets[] = { SND_SOC_DAPM_MIC("Mic (on-board)", NULL), }; /* audio map */ static struct snd_soc_dapm_route audio_map[] = { { "MIC1", NULL, "Mic Bias" }, { "Mic Bias", NULL, "Mic (on-board)" }, }; static int smdk_ac97_init(struct snd_soc_codec *codec) { unsigned short val; /* add board specific widgets */ snd_soc_dapm_new_controls(codec, smdk_dapm_widgets, ARRAY_SIZE(smdk_dapm_widgets)); /* setup board specific audio path audio_map */ snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map)); /* Prepare MIC input */ val = codec->read(codec, AC97_3D_CONTROL); codec->write(codec, AC97_3D_CONTROL, val | 0xc000); /* Static setup for now */ snd_soc_dapm_enable_pin(codec, "Mic (on-board)"); snd_soc_dapm_sync(codec); return 0; } static struct snd_soc_dai_link smdk_dai = { .name = "AC97", .stream_name = "AC97 PCM", .cpu_dai = &s3c_ac97_dai[S3C_AC97_DAI_PCM], .codec_dai = &wm9713_dai[WM9713_DAI_AC97_HIFI], .init = smdk_ac97_init, }; static struct snd_soc_card smdk = { .name = "SMDK", .platform = &s3c24xx_soc_platform, .dai_link = &smdk_dai, .num_links = 1, }; static struct snd_soc_device smdk_snd_ac97_devdata = { .card = &smdk, .codec_dev = &soc_codec_dev_wm9713, }; static struct platform_device *smdk_snd_ac97_device; static int __init smdk_init(void) { int ret; smdk_snd_ac97_device = platform_device_alloc("soc-audio", -1); if (!smdk_snd_ac97_device) return -ENOMEM; platform_set_drvdata(smdk_snd_ac97_device, &smdk_snd_ac97_devdata); smdk_snd_ac97_devdata.dev = &smdk_snd_ac97_device->dev; ret = platform_device_add(smdk_snd_ac97_device); if (ret) platform_device_put(smdk_snd_ac97_device); return ret; } static void __exit smdk_exit(void) { platform_device_unregister(smdk_snd_ac97_device); } module_init(smdk_init); module_exit(smdk_exit); /* Module information */ MODULE_AUTHOR("Jaswinder Singh Brar, [email protected]"); MODULE_DESCRIPTION("ALSA SoC SMDK+WM9713"); MODULE_LICENSE("GPL");