/* * e750-wm9705.c -- SoC audio for e750 * * Copyright 2007 (c) Ian Molton <spyro@f2s.com> * * 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; version 2 ONLY. * */ #include <linux/module.h> #include <linux/moduleparam.h> #include <linux/gpio.h> #include <sound/core.h> #include <sound/pcm.h> #include <sound/soc.h> #include <mach/audio.h> #include <mach/eseries-gpio.h> #include <asm/mach-types.h> #include "../codecs/wm9705.h" #include "pxa2xx-ac97.h" static int e750_spk_amp_event(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, int event) { if (event & SND_SOC_DAPM_PRE_PMU) gpio_set_value(GPIO_E750_SPK_AMP_OFF, 0); else if (event & SND_SOC_DAPM_POST_PMD) gpio_set_value(GPIO_E750_SPK_AMP_OFF, 1); return 0; } static int e750_hp_amp_event(struct snd_soc_dapm_widget *w, struct snd_kcontrol *kcontrol, int event) { if (event & SND_SOC_DAPM_PRE_PMU) gpio_set_value(GPIO_E750_HP_AMP_OFF, 0); else if (event & SND_SOC_DAPM_POST_PMD) gpio_set_value(GPIO_E750_HP_AMP_OFF, 1); return 0; } static const struct snd_soc_dapm_widget e750_dapm_widgets[] = { SND_SOC_DAPM_HP("Headphone Jack", NULL), SND_SOC_DAPM_SPK("Speaker", NULL), SND_SOC_DAPM_MIC("Mic (Internal)", NULL), SND_SOC_DAPM_PGA_E("Headphone Amp", SND_SOC_NOPM, 0, 0, NULL, 0, e750_hp_amp_event, SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD), SND_SOC_DAPM_PGA_E("Speaker Amp", SND_SOC_NOPM, 0, 0, NULL, 0, e750_spk_amp_event, SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD), }; static const struct snd_soc_dapm_route audio_map[] = { {"Headphone Amp", NULL, "HPOUTL"}, {"Headphone Amp", NULL, "HPOUTR"}, {"Headphone Jack", NULL, "Headphone Amp"}, {"Speaker Amp", NULL, "MONOOUT"}, {"Speaker", NULL, "Speaker Amp"}, {"MIC1", NULL, "Mic (Internal)"}, }; static int e750_ac97_init(struct snd_soc_pcm_runtime *rtd) { struct snd_soc_codec *codec = rtd->codec; struct snd_soc_dapm_context *dapm = &codec->dapm; snd_soc_dapm_nc_pin(dapm, "LOUT"); snd_soc_dapm_nc_pin(dapm, "ROUT"); snd_soc_dapm_nc_pin(dapm, "PHONE"); snd_soc_dapm_nc_pin(dapm, "LINEINL"); snd_soc_dapm_nc_pin(dapm, "LINEINR"); snd_soc_dapm_nc_pin(dapm, "CDINL"); snd_soc_dapm_nc_pin(dapm, "CDINR"); snd_soc_dapm_nc_pin(dapm, "PCBEEP"); snd_soc_dapm_nc_pin(dapm, "MIC2"); snd_soc_dapm_new_controls(dapm, e750_dapm_widgets, ARRAY_SIZE(e750_dapm_widgets)); snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map)); return 0; } static struct snd_soc_dai_link e750_dai[] = { { .name = "AC97", .stream_name = "AC97 HiFi", .cpu_dai_name = "pxa2xx-ac97", .codec_dai_name = "wm9705-hifi", .platform_name = "pxa-pcm-audio", .codec_name = "wm9705-codec", .init = e750_ac97_init, /* use ops to check startup state */ }, { .name = "AC97 Aux", .stream_name = "AC97 Aux", .cpu_dai_name = "pxa2xx-ac97-aux", .codec_dai_name ="wm9705-aux", .platform_name = "pxa-pcm-audio", .codec_name = "wm9705-codec", }, }; static struct snd_soc_card e750 = { .name = "Toshiba e750", .owner = THIS_MODULE, .dai_link = e750_dai, .num_links = ARRAY_SIZE(e750_dai), }; static struct gpio e750_audio_gpios[] = { { GPIO_E750_HP_AMP_OFF, GPIOF_OUT_INIT_HIGH, "Headphone amp" }, { GPIO_E750_SPK_AMP_OFF, GPIOF_OUT_INIT_HIGH, "Speaker amp" }, }; static int e750_probe(struct platform_device *pdev) { struct snd_soc_card *card = &e750; int ret; ret = gpio_request_array(e750_audio_gpios, ARRAY_SIZE(e750_audio_gpios)); if (ret) return ret; card->dev = &pdev->dev; ret = snd_soc_register_card(card); if (ret) { dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n", ret); gpio_free_array(e750_audio_gpios, ARRAY_SIZE(e750_audio_gpios)); } return ret; } static int e750_remove(struct platform_device *pdev) { struct snd_soc_card *card = platform_get_drvdata(pdev); gpio_free_array(e750_audio_gpios, ARRAY_SIZE(e750_audio_gpios)); snd_soc_unregister_card(card); return 0; } static struct platform_driver e750_driver = { .driver = { .name = "e750-audio", .owner = THIS_MODULE, .pm = &snd_soc_pm_ops, }, .probe = e750_probe, .remove = e750_remove, }; module_platform_driver(e750_driver); /* Module information */ MODULE_AUTHOR("Ian Molton <spyro@f2s.com>"); MODULE_DESCRIPTION("ALSA SoC driver for e750"); MODULE_LICENSE("GPL v2"); MODULE_ALIAS("platform:e750-audio");