diff options
Diffstat (limited to 'sound/soc/pxa/e800_wm9712.c')
| -rw-r--r-- | sound/soc/pxa/e800_wm9712.c | 147 |
1 files changed, 147 insertions, 0 deletions
diff --git a/sound/soc/pxa/e800_wm9712.c b/sound/soc/pxa/e800_wm9712.c new file mode 100644 index 000000000..a39c49412 --- /dev/null +++ b/sound/soc/pxa/e800_wm9712.c @@ -0,0 +1,147 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* + * e800-wm9712.c -- SoC audio for e800 + * + * Copyright 2007 (c) Ian Molton <spyro@f2s.com> + */ + +#include <linux/module.h> +#include <linux/moduleparam.h> +#include <linux/gpio/consumer.h> + +#include <sound/core.h> +#include <sound/pcm.h> +#include <sound/soc.h> + +#include <asm/mach-types.h> +#include <linux/platform_data/asoc-pxa.h> + +static struct gpio_desc *gpiod_spk_amp, *gpiod_hp_amp; + +static int e800_spk_amp_event(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *kcontrol, int event) +{ + if (event & SND_SOC_DAPM_PRE_PMU) + gpiod_set_value(gpiod_spk_amp, 1); + else if (event & SND_SOC_DAPM_POST_PMD) + gpiod_set_value(gpiod_spk_amp, 0); + + return 0; +} + +static int e800_hp_amp_event(struct snd_soc_dapm_widget *w, + struct snd_kcontrol *kcontrol, int event) +{ + if (event & SND_SOC_DAPM_PRE_PMU) + gpiod_set_value(gpiod_hp_amp, 1); + else if (event & SND_SOC_DAPM_POST_PMD) + gpiod_set_value(gpiod_hp_amp, 0); + + return 0; +} + +static const struct snd_soc_dapm_widget e800_dapm_widgets[] = { + SND_SOC_DAPM_HP("Headphone Jack", NULL), + SND_SOC_DAPM_MIC("Mic (Internal1)", NULL), + SND_SOC_DAPM_MIC("Mic (Internal2)", NULL), + SND_SOC_DAPM_SPK("Speaker", NULL), + SND_SOC_DAPM_PGA_E("Headphone Amp", SND_SOC_NOPM, 0, 0, NULL, 0, + e800_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, + e800_spk_amp_event, SND_SOC_DAPM_PRE_PMU | + SND_SOC_DAPM_POST_PMD), +}; + +static const struct snd_soc_dapm_route audio_map[] = { + {"Headphone Jack", NULL, "HPOUTL"}, + {"Headphone Jack", NULL, "HPOUTR"}, + {"Headphone Jack", NULL, "Headphone Amp"}, + + {"Speaker Amp", NULL, "MONOOUT"}, + {"Speaker", NULL, "Speaker Amp"}, + + {"MIC1", NULL, "Mic (Internal1)"}, + {"MIC2", NULL, "Mic (Internal2)"}, +}; + + +SND_SOC_DAILINK_DEFS(ac97, + DAILINK_COMP_ARRAY(COMP_CPU("pxa2xx-ac97")), + DAILINK_COMP_ARRAY(COMP_CODEC("wm9712-codec", "wm9712-hifi")), + DAILINK_COMP_ARRAY(COMP_PLATFORM("pxa-pcm-audio"))); + +SND_SOC_DAILINK_DEFS(ac97_aux, + DAILINK_COMP_ARRAY(COMP_CPU("pxa2xx-ac97-aux")), + DAILINK_COMP_ARRAY(COMP_CODEC("wm9712-codec", "wm9712-aux")), + DAILINK_COMP_ARRAY(COMP_PLATFORM("pxa-pcm-audio"))); + +static struct snd_soc_dai_link e800_dai[] = { + { + .name = "AC97", + .stream_name = "AC97 HiFi", + SND_SOC_DAILINK_REG(ac97), + }, + { + .name = "AC97 Aux", + .stream_name = "AC97 Aux", + SND_SOC_DAILINK_REG(ac97_aux), + }, +}; + +static struct snd_soc_card e800 = { + .name = "Toshiba e800", + .owner = THIS_MODULE, + .dai_link = e800_dai, + .num_links = ARRAY_SIZE(e800_dai), + + .dapm_widgets = e800_dapm_widgets, + .num_dapm_widgets = ARRAY_SIZE(e800_dapm_widgets), + .dapm_routes = audio_map, + .num_dapm_routes = ARRAY_SIZE(audio_map), +}; + +static int e800_probe(struct platform_device *pdev) +{ + struct snd_soc_card *card = &e800; + int ret; + + gpiod_hp_amp = devm_gpiod_get(&pdev->dev, "Headphone amp", GPIOD_OUT_LOW); + ret = PTR_ERR_OR_ZERO(gpiod_hp_amp); + if (ret) + return ret; + gpiod_spk_amp = devm_gpiod_get(&pdev->dev, "Speaker amp", GPIOD_OUT_LOW); + ret = PTR_ERR_OR_ZERO(gpiod_spk_amp); + 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); + return ret; +} + +static int e800_remove(struct platform_device *pdev) +{ + return 0; +} + +static struct platform_driver e800_driver = { + .driver = { + .name = "e800-audio", + .pm = &snd_soc_pm_ops, + }, + .probe = e800_probe, + .remove = e800_remove, +}; + +module_platform_driver(e800_driver); + +/* Module information */ +MODULE_AUTHOR("Ian Molton <spyro@f2s.com>"); +MODULE_DESCRIPTION("ALSA SoC driver for e800"); +MODULE_LICENSE("GPL v2"); +MODULE_ALIAS("platform:e800-audio"); |