ASoC: Support Speyside build variants with WM8962 fitted (22cb839b) · Commits · e / devices / android_kernel_teracube_emerald

sound/soc/samsung/Kconfig

+6 −0

Original line number	Diff line number	Diff line
		@@ -177,3 +177,9 @@ config SND_SOC_SPEYSIDE
		select SND_SAMSUNG_I2S
		select SND_SOC_WM8915
		select SND_SOC_WM9081

		config SND_SOC_SPEYSIDE_WM8962
		tristate "Audio support for Wolfson Speyside with WM8962"
		depends on SND_SOC_SAMSUNG && MACH_WLF_CRAGG_6410
		select SND_SAMSUNG_I2S
		select SND_SOC_WM8962

sound/soc/samsung/Makefile

+2 −0

Original line number	Diff line number	Diff line
		@@ -36,6 +36,7 @@ snd-soc-goni-wm8994-objs := goni_wm8994.o
		snd-soc-smdk-spdif-objs := smdk_spdif.o
		snd-soc-smdk-wm8580pcm-objs := smdk_wm8580pcm.o
		snd-soc-speyside-objs := speyside.o
		snd-soc-speyside-wm8962-objs := speyside_wm8962.o

		obj-$(CONFIG_SND_SOC_SAMSUNG_JIVE_WM8750) += snd-soc-jive-wm8750.o
		obj-$(CONFIG_SND_SOC_SAMSUNG_NEO1973_WM8753) += snd-soc-neo1973-wm8753.o
		@@ -55,3 +56,4 @@ obj-$(CONFIG_SND_SOC_SAMSUNG_SMDK_SPDIF) += snd-soc-smdk-spdif.o
		obj-$(CONFIG_SND_SOC_GONI_AQUILA_WM8994) += snd-soc-goni-wm8994.o
		obj-$(CONFIG_SND_SOC_SMDK_WM8580_PCM) += snd-soc-smdk-wm8580pcm.o
		obj-$(CONFIG_SND_SOC_SPEYSIDE) += snd-soc-speyside.o
		obj-$(CONFIG_SND_SOC_SPEYSIDE_WM8962) += snd-soc-speyside-wm8962.o

sound/soc/samsung/speyside_wm8962.c

0 → 100644

+260 −0

Original line number	Diff line number	Diff line
		/*
		* Speyside with WM8962 audio support
		*
		* Copyright 2011 Wolfson Microelectronics
		*
		* 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; either version 2 of the License, or (at your
		* option) any later version.
		*/

		#include <sound/soc.h>
		#include <sound/soc-dapm.h>
		#include <sound/jack.h>
		#include <linux/gpio.h>

		#include "../codecs/wm8962.h"

		static int speyside_wm8962_set_bias_level(struct snd_soc_card *card,
		struct snd_soc_dapm_context *dapm,
		enum snd_soc_bias_level level)
		{
		struct snd_soc_dai *codec_dai = card->rtd[0].codec_dai;
		int ret;

		switch (level) {
		case SND_SOC_BIAS_PREPARE:
		if (dapm->bias_level == SND_SOC_BIAS_STANDBY) {
		ret = snd_soc_dai_set_pll(codec_dai, WM8962_FLL,
		WM8962_FLL_MCLK, 32768,
		44100 * 256);
		if (ret < 0)
		pr_err("Failed to start FLL\n");

		ret = snd_soc_dai_set_sysclk(codec_dai,
		WM8962_SYSCLK_FLL,
		44100 * 256,
		SND_SOC_CLOCK_IN);
		if (ret < 0)
		return ret;
		}
		break;

		default:
		break;
		}

		return 0;
		}

		static int speyside_wm8962_set_bias_level_post(struct snd_soc_card *card,
		struct snd_soc_dapm_context *dapm,
		enum snd_soc_bias_level level)
		{
		struct snd_soc_dai *codec_dai = card->rtd[0].codec_dai;
		int ret;

		switch (level) {
		case SND_SOC_BIAS_STANDBY:
		ret = snd_soc_dai_set_sysclk(codec_dai, WM8962_SYSCLK_MCLK,
		32768, SND_SOC_CLOCK_IN);
		if (ret < 0)
		return ret;

		ret = snd_soc_dai_set_pll(codec_dai, WM8962_FLL,
		0, 0, 0);
		if (ret < 0) {
		pr_err("Failed to stop FLL\n");
		return ret;
		}
		break;

		default:
		break;
		}

		dapm->bias_level = level;

		return 0;
		}

		static int speyside_wm8962_hw_params(struct snd_pcm_substream *substream,
		struct snd_pcm_hw_params *params)
		{
		struct snd_soc_pcm_runtime *rtd = substream->private_data;
		struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
		struct snd_soc_dai *codec_dai = rtd->codec_dai;
		int ret;

		ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S
		\| SND_SOC_DAIFMT_NB_NF
		\| SND_SOC_DAIFMT_CBM_CFM);
		if (ret < 0)
		return ret;

		ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S
		\| SND_SOC_DAIFMT_NB_NF
		\| SND_SOC_DAIFMT_CBM_CFM);
		if (ret < 0)
		return ret;

		return 0;
		}

		static struct snd_soc_ops speyside_wm8962_ops = {
		.hw_params = speyside_wm8962_hw_params,
		};

		static struct snd_soc_dai_link speyside_wm8962_dai[] = {
		{
		.name = "CPU",
		.stream_name = "CPU",
		.cpu_dai_name = "samsung-i2s.0",
		.codec_dai_name = "wm8962",
		.platform_name = "samsung-audio",
		.codec_name = "wm8962.1-001a",
		.ops = &speyside_wm8962_ops,
		},
		};

		static const struct snd_kcontrol_new controls[] = {
		SOC_DAPM_PIN_SWITCH("Main Speaker"),
		};

		static struct snd_soc_dapm_widget widgets[] = {
		SND_SOC_DAPM_HP("Headphone", NULL),
		SND_SOC_DAPM_MIC("Headset Mic", NULL),

		SND_SOC_DAPM_MIC("DMIC", NULL),

		SND_SOC_DAPM_SPK("Main Speaker", NULL),
		};

		static struct snd_soc_dapm_route audio_paths[] = {
		{ "Headphone", NULL, "HPOUTL" },
		{ "Headphone", NULL, "HPOUTR" },

		{ "Main Speaker", NULL, "SPKOUTL" },
		{ "Main Speaker", NULL, "SPKOUTR" },

		{ "MICBIAS", NULL, "Headset Mic" },
		{ "IN4L", NULL, "MICBIAS" },
		{ "IN4R", NULL, "MICBIAS" },

		{ "MICBIAS", NULL, "DMIC" },
		{ "DMICDAT", NULL, "MICBIAS" },
		};

		static struct snd_soc_jack speyside_wm8962_headset;

		/* Headset jack detection DAPM pins */
		static struct snd_soc_jack_pin speyside_wm8962_headset_pins[] = {
		{
		.pin = "Headset Mic",
		.mask = SND_JACK_MICROPHONE,
		},
		{
		.pin = "Headphone",
		.mask = SND_JACK_MICROPHONE,
		},
		};

		static int speyside_wm8962_late_probe(struct snd_soc_card *card)
		{
		struct snd_soc_codec *codec = card->rtd[0].codec;
		struct snd_soc_dai *codec_dai = card->rtd[0].codec_dai;
		int ret;

		ret = snd_soc_dai_set_sysclk(codec_dai, WM8962_SYSCLK_MCLK,
		32768, SND_SOC_CLOCK_IN);
		if (ret < 0)
		return ret;

		ret = snd_soc_jack_new(codec, "Headset",
		SND_JACK_HEADSET \| SND_JACK_BTN_0,
		&speyside_wm8962_headset);
		if (ret)
		return ret;

		ret = snd_soc_jack_add_pins(&speyside_wm8962_headset,
		ARRAY_SIZE(speyside_wm8962_headset_pins),
		speyside_wm8962_headset_pins);
		if (ret)
		return ret;

		wm8962_mic_detect(codec, &speyside_wm8962_headset);

		return 0;
		}

		static struct snd_soc_card speyside_wm8962 = {
		.name = "Speyside WM8962",
		.dai_link = speyside_wm8962_dai,
		.num_links = ARRAY_SIZE(speyside_wm8962_dai),

		.set_bias_level = speyside_wm8962_set_bias_level,
		.set_bias_level_post = speyside_wm8962_set_bias_level_post,

		.controls = controls,
		.num_controls = ARRAY_SIZE(controls),
		.dapm_widgets = widgets,
		.num_dapm_widgets = ARRAY_SIZE(widgets),
		.dapm_routes = audio_paths,
		.num_dapm_routes = ARRAY_SIZE(audio_paths),

		.late_probe = speyside_wm8962_late_probe,
		};

		static __devinit int speyside_wm8962_probe(struct platform_device *pdev)
		{
		struct snd_soc_card *card = &speyside_wm8962;
		int ret;

		card->dev = &pdev->dev;

		ret = snd_soc_register_card(card);
		if (ret) {
		dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
		ret);
		return ret;
		}

		return 0;
		}

		static int __devexit speyside_wm8962_remove(struct platform_device *pdev)
		{
		struct snd_soc_card *card = platform_get_drvdata(pdev);

		snd_soc_unregister_card(card);

		return 0;
		}

		static struct platform_driver speyside_wm8962_driver = {
		.driver = {
		.name = "speyside-wm8962",
		.owner = THIS_MODULE,
		.pm = &snd_soc_pm_ops,
		},
		.probe = speyside_wm8962_probe,
		.remove = __devexit_p(speyside_wm8962_remove),
		};

		static int __init speyside_wm8962_audio_init(void)
		{
		return platform_driver_register(&speyside_wm8962_driver);
		}
		module_init(speyside_wm8962_audio_init);

		static void __exit speyside_wm8962_audio_exit(void)
		{
		platform_driver_unregister(&speyside_wm8962_driver);
		}
		module_exit(speyside_wm8962_audio_exit);

		MODULE_DESCRIPTION("Speyside WM8962 audio support");
		MODULE_AUTHOR("Mark Brown <broonie@opensource.wolfsonmicro.com>");
		MODULE_LICENSE("GPL");
		MODULE_ALIAS("platform:speyside-wm8962");