/* * e800-wm9712.c -- SoC audio for e800 * * 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 <sound/soc-dapm.h> #include <asm/mach-types.h> #include <mach/audio.h> #include <mach/eseries-gpio.h> #include "../codecs/wm9712.h" #include "pxa2xx-pcm.h" #include "pxa2xx-ac97.h" static int e800_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_E800_SPK_AMP_ON, 1); else if (event & SND_SOC_DAPM_POST_PMD) gpio_set_value(GPIO_E800_SPK_AMP_ON, 0); return 0; } static int e800_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_E800_HP_AMP_OFF, 0); else if (event & SND_SOC_DAPM_POST_PMD) gpio_set_value(GPIO_E800_HP_AMP_OFF, 1); return 0; } static const struct snd_soc_dapm_widget e800_dapm_widgets[] = { SND_SOC_DAPM_HP("Headphone Jack", NULL), SND_SOC_DAPM_MIC("Mic (Internal1)", NULL), SND_SOC_DAPM_MIC("Mic (Internal2)", NULL), SND_SOC_DAPM_SPK("Speaker", NULL), SND_SOC_DAPM_PGA_E("Headphone Amp", SND_SOC_NOPM, 0, 0, NULL, 0, e800_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, e800_spk_amp_event, SND_SOC_DAPM_PRE_PMU | SND_SOC_DAPM_POST_PMD), }; static const struct snd_soc_dapm_route audio_map[] = { {"Headphone Jack", NULL, "HPOUTL"}, {"Headphone Jack", NULL, "HPOUTR"}, {"Headphone Jack", NULL, "Headphone Amp"}, {"Speaker Amp", NULL, "MONOOUT"}, {"Speaker", NULL, "Speaker Amp"}, {"MIC1", NULL, "Mic (Internal1)"}, {"MIC2", NULL, "Mic (Internal2)"}, }; static int e800_ac97_init(struct snd_soc_codec *codec) { snd_soc_dapm_new_controls(codec, e800_dapm_widgets, ARRAY_SIZE(e800_dapm_widgets)); snd_soc_dapm_add_routes(codec, audio_map, ARRAY_SIZE(audio_map)); snd_soc_dapm_sync(codec); return 0; } static struct snd_soc_dai_link e800_dai[] = { { .name = "AC97", .stream_name = "AC97 HiFi", .cpu_dai = &pxa_ac97_dai[PXA2XX_DAI_AC97_HIFI], .codec_dai = &wm9712_dai[WM9712_DAI_AC97_HIFI], .init = e800_ac97_init, }, { .name = "AC97 Aux", .stream_name = "AC97 Aux", .cpu_dai = &pxa_ac97_dai[PXA2XX_DAI_AC97_AUX], .codec_dai = &wm9712_dai[WM9712_DAI_AC97_AUX], }, }; static struct snd_soc_card e800 = { .name = "Toshiba e800", .platform = &pxa2xx_soc_platform, .dai_link = e800_dai, .num_links = ARRAY_SIZE(e800_dai), }; static struct snd_soc_device e800_snd_devdata = { .card = &e800, .codec_dev = &soc_codec_dev_wm9712, }; static struct platform_device *e800_snd_device; static int __init e800_init(void) { int ret; if (!machine_is_e800()) return -ENODEV; ret = gpio_request(GPIO_E800_HP_AMP_OFF, "Headphone amp"); if (ret) return ret; ret = gpio_request(GPIO_E800_SPK_AMP_ON, "Speaker amp"); if (ret) goto free_hp_amp_gpio; ret = gpio_direction_output(GPIO_E800_HP_AMP_OFF, 1); if (ret) goto free_spk_amp_gpio; ret = gpio_direction_output(GPIO_E800_SPK_AMP_ON, 1); if (ret) goto free_spk_amp_gpio; e800_snd_device = platform_device_alloc("soc-audio", -1); if (!e800_snd_device) return -ENOMEM; platform_set_drvdata(e800_snd_device, &e800_snd_devdata); e800_snd_devdata.dev = &e800_snd_device->dev; ret = platform_device_add(e800_snd_device); if (!ret) return 0; /* Fail gracefully */ platform_device_put(e800_snd_device); free_spk_amp_gpio: gpio_free(GPIO_E800_SPK_AMP_ON); free_hp_amp_gpio: gpio_free(GPIO_E800_HP_AMP_OFF); return ret; } static void __exit e800_exit(void) { platform_device_unregister(e800_snd_device); gpio_free(GPIO_E800_SPK_AMP_ON); gpio_free(GPIO_E800_HP_AMP_OFF); } module_init(e800_init); module_exit(e800_exit); /* Module information */ MODULE_AUTHOR("Ian Molton <spyro@f2s.com>"); MODULE_DESCRIPTION("ALSA SoC driver for e800"); MODULE_LICENSE("GPL v2");