148 lines
3.6 KiB
C
148 lines
3.6 KiB
C
// SPDX-License-Identifier: GPL-2.0-only
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/*
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* e750-wm9705.c -- SoC audio for e750
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*
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* Copyright 2007 (c) Ian Molton <spyro@f2s.com>
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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/consumer.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 <linux/platform_data/asoc-pxa.h>
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#include <asm/mach-types.h>
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static struct gpio_desc *gpiod_spk_amp, *gpiod_hp_amp;
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static int e750_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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gpiod_set_value(gpiod_spk_amp, 1);
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else if (event & SND_SOC_DAPM_POST_PMD)
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gpiod_set_value(gpiod_spk_amp, 0);
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return 0;
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}
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static int e750_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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gpiod_set_value(gpiod_hp_amp, 1);
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else if (event & SND_SOC_DAPM_POST_PMD)
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gpiod_set_value(gpiod_hp_amp, 0);
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return 0;
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}
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static const struct snd_soc_dapm_widget e750_dapm_widgets[] = {
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SND_SOC_DAPM_HP("Headphone Jack", NULL),
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SND_SOC_DAPM_SPK("Speaker", NULL),
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SND_SOC_DAPM_MIC("Mic (Internal)", NULL),
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SND_SOC_DAPM_PGA_E("Headphone Amp", SND_SOC_NOPM, 0, 0, NULL, 0,
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e750_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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e750_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 Amp", NULL, "HPOUTL"},
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{"Headphone Amp", 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 (Internal)"},
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};
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SND_SOC_DAILINK_DEFS(ac97,
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DAILINK_COMP_ARRAY(COMP_CPU("pxa2xx-ac97")),
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DAILINK_COMP_ARRAY(COMP_CODEC("wm9705-codec", "wm9705-hifi")),
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DAILINK_COMP_ARRAY(COMP_PLATFORM("pxa-pcm-audio")));
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SND_SOC_DAILINK_DEFS(ac97_aux,
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DAILINK_COMP_ARRAY(COMP_CPU("pxa2xx-ac97-aux")),
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DAILINK_COMP_ARRAY(COMP_CODEC("wm9705-codec", "wm9705-aux")),
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DAILINK_COMP_ARRAY(COMP_PLATFORM("pxa-pcm-audio")));
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static struct snd_soc_dai_link e750_dai[] = {
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{
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.name = "AC97",
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.stream_name = "AC97 HiFi",
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SND_SOC_DAILINK_REG(ac97),
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/* use ops to check startup state */
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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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SND_SOC_DAILINK_REG(ac97_aux),
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},
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};
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static struct snd_soc_card e750 = {
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.name = "Toshiba e750",
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.owner = THIS_MODULE,
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.dai_link = e750_dai,
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.num_links = ARRAY_SIZE(e750_dai),
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.dapm_widgets = e750_dapm_widgets,
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.num_dapm_widgets = ARRAY_SIZE(e750_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 e750_probe(struct platform_device *pdev)
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{
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struct snd_soc_card *card = &e750;
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int ret;
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gpiod_hp_amp = devm_gpiod_get(&pdev->dev, "Headphone amp", GPIOD_OUT_LOW);
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ret = PTR_ERR_OR_ZERO(gpiod_hp_amp);
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if (ret)
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return ret;
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gpiod_spk_amp = devm_gpiod_get(&pdev->dev, "Speaker amp", GPIOD_OUT_LOW);
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ret = PTR_ERR_OR_ZERO(gpiod_spk_amp);
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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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return ret;
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}
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static int e750_remove(struct platform_device *pdev)
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{
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return 0;
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}
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static struct platform_driver e750_driver = {
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.driver = {
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.name = "e750-audio",
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.pm = &snd_soc_pm_ops,
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},
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.probe = e750_probe,
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.remove = e750_remove,
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};
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module_platform_driver(e750_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 e750");
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MODULE_LICENSE("GPL v2");
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MODULE_ALIAS("platform:e750-audio");
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