162 lines
3.9 KiB
C
162 lines
3.9 KiB
C
/*
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* linux/sound/soc/pxa/palm27x.c
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*
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* SoC Audio driver for Palm T|X, T5 and LifeDrive
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*
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* based on tosa.c
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*
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* Copyright (C) 2008 Marek Vasut <marek.vasut@gmail.com>
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License version 2 as
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* published by the Free Software Foundation.
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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/device.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 <sound/jack.h>
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#include <asm/mach-types.h>
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#include <mach/audio.h>
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#include <linux/platform_data/asoc-palm27x.h>
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static struct snd_soc_jack hs_jack;
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/* Headphones jack detection DAPM pins */
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static struct snd_soc_jack_pin hs_jack_pins[] = {
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{
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.pin = "Headphone Jack",
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.mask = SND_JACK_HEADPHONE,
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},
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};
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/* Headphones jack detection gpios */
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static struct snd_soc_jack_gpio hs_jack_gpios[] = {
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[0] = {
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/* gpio is set on per-platform basis */
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.name = "hp-gpio",
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.report = SND_JACK_HEADPHONE,
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.debounce_time = 200,
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},
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};
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/* Palm27x machine dapm widgets */
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static const struct snd_soc_dapm_widget palm27x_dapm_widgets[] = {
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SND_SOC_DAPM_HP("Headphone Jack", NULL),
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SND_SOC_DAPM_SPK("Ext. Speaker", NULL),
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SND_SOC_DAPM_MIC("Ext. Microphone", NULL),
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};
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/* PalmTX audio map */
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static const struct snd_soc_dapm_route audio_map[] = {
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/* headphone connected to HPOUTL, HPOUTR */
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{"Headphone Jack", NULL, "HPOUTL"},
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{"Headphone Jack", NULL, "HPOUTR"},
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/* ext speaker connected to ROUT2, LOUT2 */
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{"Ext. Speaker", NULL, "LOUT2"},
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{"Ext. Speaker", NULL, "ROUT2"},
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/* mic connected to MIC1 */
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{"MIC1", NULL, "Ext. Microphone"},
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};
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static struct snd_soc_card palm27x_asoc;
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static int palm27x_ac97_init(struct snd_soc_pcm_runtime *rtd)
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{
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int err;
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/* Jack detection API stuff */
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err = snd_soc_card_jack_new(rtd->card, "Headphone Jack",
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SND_JACK_HEADPHONE, &hs_jack, hs_jack_pins,
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ARRAY_SIZE(hs_jack_pins));
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if (err)
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return err;
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err = snd_soc_jack_add_gpios(&hs_jack, ARRAY_SIZE(hs_jack_gpios),
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hs_jack_gpios);
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return err;
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}
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static struct snd_soc_dai_link palm27x_dai[] = {
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{
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.name = "AC97 HiFi",
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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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.codec_name = "wm9712-codec",
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.platform_name = "pxa-pcm-audio",
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.init = palm27x_ac97_init,
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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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.codec_name = "wm9712-codec",
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.platform_name = "pxa-pcm-audio",
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},
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};
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static struct snd_soc_card palm27x_asoc = {
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.name = "Palm/PXA27x",
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.owner = THIS_MODULE,
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.dai_link = palm27x_dai,
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.num_links = ARRAY_SIZE(palm27x_dai),
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.dapm_widgets = palm27x_dapm_widgets,
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.num_dapm_widgets = ARRAY_SIZE(palm27x_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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.fully_routed = true,
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};
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static int palm27x_asoc_probe(struct platform_device *pdev)
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{
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int ret;
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if (!(machine_is_palmtx() || machine_is_palmt5() ||
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machine_is_palmld() || machine_is_palmte2()))
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return -ENODEV;
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if (!pdev->dev.platform_data) {
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dev_err(&pdev->dev, "please supply platform_data\n");
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return -ENODEV;
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}
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hs_jack_gpios[0].gpio = ((struct palm27x_asoc_info *)
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(pdev->dev.platform_data))->jack_gpio;
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palm27x_asoc.dev = &pdev->dev;
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ret = devm_snd_soc_register_card(&pdev->dev, &palm27x_asoc);
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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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return ret;
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}
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static struct platform_driver palm27x_wm9712_driver = {
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.probe = palm27x_asoc_probe,
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.driver = {
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.name = "palm27x-asoc",
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.pm = &snd_soc_pm_ops,
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},
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};
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module_platform_driver(palm27x_wm9712_driver);
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/* Module information */
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MODULE_AUTHOR("Marek Vasut <marek.vasut@gmail.com>");
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MODULE_DESCRIPTION("ALSA SoC Palm T|X, T5 and LifeDrive");
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MODULE_LICENSE("GPL");
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MODULE_ALIAS("platform:palm27x-asoc");
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