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- /*
- * 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 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",
- /* 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),
- .dapm_widgets = e750_dapm_widgets,
- .num_dapm_widgets = ARRAY_SIZE(e750_dapm_widgets),
- .dapm_routes = audio_map,
- .num_dapm_routes = ARRAY_SIZE(audio_map),
- .fully_routed = true,
- };
- 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 = devm_snd_soc_register_card(&pdev->dev, 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)
- {
- gpio_free_array(e750_audio_gpios, ARRAY_SIZE(e750_audio_gpios));
- return 0;
- }
- static struct platform_driver e750_driver = {
- .driver = {
- .name = "e750-audio",
- .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");
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