150 lines
3.8 KiB
C
150 lines
3.8 KiB
C
/*
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* e800-wm9712.c -- SoC audio for e800
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*
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* Copyright 2007 (c) Ian Molton <spyro@f2s.com>
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of the GNU General Public License as published by the
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* Free Software Foundation; version 2 ONLY.
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*
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*/
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#include <linux/module.h>
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#include <linux/moduleparam.h>
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#include <linux/gpio.h>
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#include <sound/core.h>
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#include <sound/pcm.h>
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#include <sound/soc.h>
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#include <asm/mach-types.h>
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#include <mach/audio.h>
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#include <mach/eseries-gpio.h>
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static int e800_spk_amp_event(struct snd_soc_dapm_widget *w,
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struct snd_kcontrol *kcontrol, int event)
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{
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if (event & SND_SOC_DAPM_PRE_PMU)
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gpio_set_value(GPIO_E800_SPK_AMP_ON, 1);
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else if (event & SND_SOC_DAPM_POST_PMD)
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gpio_set_value(GPIO_E800_SPK_AMP_ON, 0);
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return 0;
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}
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static int e800_hp_amp_event(struct snd_soc_dapm_widget *w,
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struct snd_kcontrol *kcontrol, int event)
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{
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if (event & SND_SOC_DAPM_PRE_PMU)
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gpio_set_value(GPIO_E800_HP_AMP_OFF, 0);
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else if (event & SND_SOC_DAPM_POST_PMD)
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gpio_set_value(GPIO_E800_HP_AMP_OFF, 1);
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return 0;
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}
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static const struct snd_soc_dapm_widget e800_dapm_widgets[] = {
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SND_SOC_DAPM_HP("Headphone Jack", NULL),
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SND_SOC_DAPM_MIC("Mic (Internal1)", NULL),
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SND_SOC_DAPM_MIC("Mic (Internal2)", NULL),
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SND_SOC_DAPM_SPK("Speaker", NULL),
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SND_SOC_DAPM_PGA_E("Headphone Amp", SND_SOC_NOPM, 0, 0, NULL, 0,
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e800_hp_amp_event, SND_SOC_DAPM_PRE_PMU |
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SND_SOC_DAPM_POST_PMD),
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SND_SOC_DAPM_PGA_E("Speaker Amp", SND_SOC_NOPM, 0, 0, NULL, 0,
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e800_spk_amp_event, SND_SOC_DAPM_PRE_PMU |
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SND_SOC_DAPM_POST_PMD),
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};
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static const struct snd_soc_dapm_route audio_map[] = {
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{"Headphone Jack", NULL, "HPOUTL"},
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{"Headphone Jack", NULL, "HPOUTR"},
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{"Headphone Jack", NULL, "Headphone Amp"},
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{"Speaker Amp", NULL, "MONOOUT"},
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{"Speaker", NULL, "Speaker Amp"},
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{"MIC1", NULL, "Mic (Internal1)"},
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{"MIC2", NULL, "Mic (Internal2)"},
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};
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static struct snd_soc_dai_link e800_dai[] = {
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{
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.name = "AC97",
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.stream_name = "AC97 HiFi",
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.cpu_dai_name = "pxa2xx-ac97",
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.codec_dai_name = "wm9712-hifi",
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.platform_name = "pxa-pcm-audio",
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.codec_name = "wm9712-codec",
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},
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{
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.name = "AC97 Aux",
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.stream_name = "AC97 Aux",
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.cpu_dai_name = "pxa2xx-ac97-aux",
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.codec_dai_name = "wm9712-aux",
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.platform_name = "pxa-pcm-audio",
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.codec_name = "wm9712-codec",
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},
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};
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static struct snd_soc_card e800 = {
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.name = "Toshiba e800",
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.owner = THIS_MODULE,
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.dai_link = e800_dai,
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.num_links = ARRAY_SIZE(e800_dai),
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.dapm_widgets = e800_dapm_widgets,
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.num_dapm_widgets = ARRAY_SIZE(e800_dapm_widgets),
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.dapm_routes = audio_map,
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.num_dapm_routes = ARRAY_SIZE(audio_map),
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};
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static struct gpio e800_audio_gpios[] = {
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{ GPIO_E800_SPK_AMP_ON, GPIOF_OUT_INIT_HIGH, "Headphone amp" },
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{ GPIO_E800_HP_AMP_OFF, GPIOF_OUT_INIT_HIGH, "Speaker amp" },
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};
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static int e800_probe(struct platform_device *pdev)
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{
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struct snd_soc_card *card = &e800;
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int ret;
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ret = gpio_request_array(e800_audio_gpios,
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ARRAY_SIZE(e800_audio_gpios));
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if (ret)
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return ret;
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card->dev = &pdev->dev;
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ret = devm_snd_soc_register_card(&pdev->dev, card);
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if (ret) {
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dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
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ret);
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gpio_free_array(e800_audio_gpios, ARRAY_SIZE(e800_audio_gpios));
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}
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return ret;
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}
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static int e800_remove(struct platform_device *pdev)
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{
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gpio_free_array(e800_audio_gpios, ARRAY_SIZE(e800_audio_gpios));
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return 0;
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}
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static struct platform_driver e800_driver = {
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.driver = {
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.name = "e800-audio",
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.pm = &snd_soc_pm_ops,
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},
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.probe = e800_probe,
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.remove = e800_remove,
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};
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module_platform_driver(e800_driver);
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/* Module information */
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MODULE_AUTHOR("Ian Molton <spyro@f2s.com>");
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MODULE_DESCRIPTION("ALSA SoC driver for e800");
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MODULE_LICENSE("GPL v2");
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MODULE_ALIAS("platform:e800-audio");
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