/* * 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 <sound/soc-dapm.h> #include <mach/audio.h> #include <mach/eseries-gpio.h> #include <asm/mach-types.h> #include "../codecs/wm9705.h" #include "pxa2xx-pcm.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_codec *codec) { snd_soc_dapm_nc_pin(codec, "LOUT"); snd_soc_dapm_nc_pin(codec, "ROUT"); snd_soc_dapm_nc_pin(codec, "PHONE"); snd_soc_dapm_nc_pin(codec, "LINEINL"); snd_soc_dapm_nc_pin(codec, "LINEINR"); snd_soc_dapm_nc_pin(codec, "CDINL"); snd_soc_dapm_nc_pin(codec, "CDINR"); snd_soc_dapm_nc_pin(codec, "PCBEEP"); snd_soc_dapm_nc_pin(codec, "MIC2"); snd_soc_dapm_new_controls(codec, e750_dapm_widgets, ARRAY_SIZE(e750_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 e750_dai[] = { { .name = "AC97", .stream_name = "AC97 HiFi", .cpu_dai = &pxa_ac97_dai[PXA2XX_DAI_AC97_HIFI], .codec_dai = &wm9705_dai[WM9705_DAI_AC97_HIFI], .init = e750_ac97_init, /* use ops to check startup state */ }, { .name = "AC97 Aux", .stream_name = "AC97 Aux", .cpu_dai = &pxa_ac97_dai[PXA2XX_DAI_AC97_AUX], .codec_dai = &wm9705_dai[WM9705_DAI_AC97_AUX], }, }; static struct snd_soc_card e750 = { .name = "Toshiba e750", .platform = &pxa2xx_soc_platform, .dai_link = e750_dai, .num_links = ARRAY_SIZE(e750_dai), }; static struct snd_soc_device e750_snd_devdata = { .card = &e750, .codec_dev = &soc_codec_dev_wm9705, }; static struct platform_device *e750_snd_device; static int __init e750_init(void) { int ret; if (!machine_is_e750()) return -ENODEV; ret = gpio_request(GPIO_E750_HP_AMP_OFF, "Headphone amp"); if (ret) return ret; ret = gpio_request(GPIO_E750_SPK_AMP_OFF, "Speaker amp"); if (ret) goto free_hp_amp_gpio; ret = gpio_direction_output(GPIO_E750_HP_AMP_OFF, 1); if (ret) goto free_spk_amp_gpio; ret = gpio_direction_output(GPIO_E750_SPK_AMP_OFF, 1); if (ret) goto free_spk_amp_gpio; e750_snd_device = platform_device_alloc("soc-audio", -1); if (!e750_snd_device) { ret = -ENOMEM; goto free_spk_amp_gpio; } platform_set_drvdata(e750_snd_device, &e750_snd_devdata); e750_snd_devdata.dev = &e750_snd_device->dev; ret = platform_device_add(e750_snd_device); if (!ret) return 0; /* Fail gracefully */ platform_device_put(e750_snd_device); free_spk_amp_gpio: gpio_free(GPIO_E750_SPK_AMP_OFF); free_hp_amp_gpio: gpio_free(GPIO_E750_HP_AMP_OFF); return ret; } static void __exit e750_exit(void) { platform_device_unregister(e750_snd_device); gpio_free(GPIO_E750_SPK_AMP_OFF); gpio_free(GPIO_E750_HP_AMP_OFF); } module_init(e750_init); module_exit(e750_exit); /* Module information */ MODULE_AUTHOR("Ian Molton <spyro@f2s.com>"); MODULE_DESCRIPTION("ALSA SoC driver for e750"); MODULE_LICENSE("GPL v2");