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/*
* linux/sound/soc/pxa/palm27x.c
*
* SoC Audio driver for Palm T|X, T5 and LifeDrive
*
* based on tosa.c
*
* Copyright (C) 2008 Marek Vasut <marek.vasut@gmail.com>
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*
*/
#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/device.h>
#include <linux/gpio.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/soc.h>
#include <sound/jack.h>
#include <asm/mach-types.h>
#include <mach/audio.h>
#include <linux/platform_data/asoc-palm27x.h>
static struct snd_soc_jack hs_jack;
/* Headphones jack detection DAPM pins */
static struct snd_soc_jack_pin hs_jack_pins[] = {
{
.pin = "Headphone Jack",
.mask = SND_JACK_HEADPHONE,
},
};
/* Headphones jack detection gpios */
static struct snd_soc_jack_gpio hs_jack_gpios[] = {
[0] = {
/* gpio is set on per-platform basis */
.name = "hp-gpio",
.report = SND_JACK_HEADPHONE,
.debounce_time = 200,
},
};
/* Palm27x machine dapm widgets */
static const struct snd_soc_dapm_widget palm27x_dapm_widgets[] = {
SND_SOC_DAPM_HP("Headphone Jack", NULL),
SND_SOC_DAPM_SPK("Ext. Speaker", NULL),
SND_SOC_DAPM_MIC("Ext. Microphone", NULL),
};
/* PalmTX audio map */
static const struct snd_soc_dapm_route audio_map[] = {
/* headphone connected to HPOUTL, HPOUTR */
{"Headphone Jack", NULL, "HPOUTL"},
{"Headphone Jack", NULL, "HPOUTR"},
/* ext speaker connected to ROUT2, LOUT2 */
{"Ext. Speaker", NULL, "LOUT2"},
{"Ext. Speaker", NULL, "ROUT2"},
/* mic connected to MIC1 */
{"MIC1", NULL, "Ext. Microphone"},
};
static struct snd_soc_card palm27x_asoc;
static int palm27x_ac97_init(struct snd_soc_pcm_runtime *rtd)
{
int err;
/* Jack detection API stuff */
err = snd_soc_card_jack_new(rtd->card, "Headphone Jack",
SND_JACK_HEADPHONE, &hs_jack, hs_jack_pins,
ARRAY_SIZE(hs_jack_pins));
if (err)
return err;
err = snd_soc_jack_add_gpios(&hs_jack, ARRAY_SIZE(hs_jack_gpios),
hs_jack_gpios);
return err;
}
static struct snd_soc_dai_link palm27x_dai[] = {
{
.name = "AC97 HiFi",
.stream_name = "AC97 HiFi",
.cpu_dai_name = "pxa2xx-ac97",
.codec_dai_name = "wm9712-hifi",
.codec_name = "wm9712-codec",
.platform_name = "pxa-pcm-audio",
.init = palm27x_ac97_init,
},
{
.name = "AC97 Aux",
.stream_name = "AC97 Aux",
.cpu_dai_name = "pxa2xx-ac97-aux",
.codec_dai_name = "wm9712-aux",
.codec_name = "wm9712-codec",
.platform_name = "pxa-pcm-audio",
},
};
static struct snd_soc_card palm27x_asoc = {
.name = "Palm/PXA27x",
.owner = THIS_MODULE,
.dai_link = palm27x_dai,
.num_links = ARRAY_SIZE(palm27x_dai),
.dapm_widgets = palm27x_dapm_widgets,
.num_dapm_widgets = ARRAY_SIZE(palm27x_dapm_widgets),
.dapm_routes = audio_map,
.num_dapm_routes = ARRAY_SIZE(audio_map),
.fully_routed = true,
};
static int palm27x_asoc_probe(struct platform_device *pdev)
{
int ret;
if (!(machine_is_palmtx() || machine_is_palmt5() ||
machine_is_palmld() || machine_is_palmte2()))
return -ENODEV;
if (!pdev->dev.platform_data) {
dev_err(&pdev->dev, "please supply platform_data\n");
return -ENODEV;
}
hs_jack_gpios[0].gpio = ((struct palm27x_asoc_info *)
(pdev->dev.platform_data))->jack_gpio;
palm27x_asoc.dev = &pdev->dev;
ret = devm_snd_soc_register_card(&pdev->dev, &palm27x_asoc);
if (ret)
dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
ret);
return ret;
}
static struct platform_driver palm27x_wm9712_driver = {
.probe = palm27x_asoc_probe,
.driver = {
.name = "palm27x-asoc",
.pm = &snd_soc_pm_ops,
},
};
module_platform_driver(palm27x_wm9712_driver);
/* Module information */
MODULE_AUTHOR("Marek Vasut <marek.vasut@gmail.com>");
MODULE_DESCRIPTION("ALSA SoC Palm T|X, T5 and LifeDrive");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:palm27x-asoc");
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