ASoC: Add HP iPAQ H1940 support (1957668b) · Commits · e / devices / android_kernel_xiaomi_markw

sound/soc/samsung/Kconfig

+8 −0

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		@@ -116,6 +116,14 @@ config ASOC_SAMSUNG_SIMTEC_HERMES
		select SND_SOC_TLV320AIC3X
		select ASOC_SAMSUNG_SIMTEC

		config ASOC_SAMSUNG_H1940_UDA1380
		tristate "Audio support for the HP iPAQ H1940"
		depends on ASOC_SAMSUNG && ARCH_H1940
		select SND_S3C24XX_I2S
		select SND_SOC_UDA1380
		help
		This driver provides audio support for HP iPAQ h1940 PDA.

		config ASOC_SAMSUNG_RX1950_UDA1380
		tristate "Audio support for the HP iPAQ RX1950"
		depends on ASOC_SAMSUNG && MACH_RX1950

sound/soc/samsung/Makefile

+2 −0

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		@@ -27,6 +27,7 @@ snd-soc-s3c24xx-uda134x-objs := s3c24xx_uda134x.o
		snd-soc-s3c24xx-simtec-objs := s3c24xx_simtec.o
		snd-soc-s3c24xx-simtec-hermes-objs := s3c24xx_simtec_hermes.o
		snd-soc-s3c24xx-simtec-tlv320aic23-objs := s3c24xx_simtec_tlv320aic23.o
		snd-soc-h1940-uda1380-objs := h1940_uda1380.o
		snd-soc-rx1950-uda1380-objs := rx1950_uda1380.o
		snd-soc-smdk-wm8580-objs := smdk_wm8580.o
		snd-soc-smdk-wm9713-objs := smdk_wm9713.o
		@@ -43,6 +44,7 @@ obj-$(CONFIG_ASOC_SAMSUNG_S3C24XX_UDA134X) += snd-soc-s3c24xx-uda134x.o
		obj-$(CONFIG_ASOC_SAMSUNG_SIMTEC) += snd-soc-s3c24xx-simtec.o
		obj-$(CONFIG_ASOC_SAMSUNG_SIMTEC_HERMES) += snd-soc-s3c24xx-simtec-hermes.o
		obj-$(CONFIG_ASOC_SAMSUNG_SIMTEC_TLV320AIC23) += snd-soc-s3c24xx-simtec-tlv320aic23.o
		obj-$(CONFIG_ASOC_SAMSUNG_H1940_UDA1380) += snd-soc-h1940-uda1380.o
		obj-$(CONFIG_ASOC_SAMSUNG_RX1950_UDA1380) += snd-soc-rx1950-uda1380.o
		obj-$(CONFIG_ASOC_SAMSUNG_SMDK_WM8580) += snd-soc-smdk-wm8580.o
		obj-$(CONFIG_ASOC_SAMSUNG_SMDK_WM9713) += snd-soc-smdk-wm9713.o

sound/soc/samsung/h1940_uda1380.c

0 → 100644

+296 −0

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		/*
		* h1940-uda1380.c -- ALSA Soc Audio Layer
		*
		* Copyright (c) 2010 Arnaud Patard <arnaud.patard@rtp-net.org>
		* Copyright (c) 2010 Vasily Khoruzhick <anarsoul@gmail.com>
		*
		* Based on version from Arnaud Patard <arnaud.patard@rtp-net.org>
		*
		* 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 <linux/module.h>
		#include <linux/moduleparam.h>
		#include <linux/platform_device.h>
		#include <linux/i2c.h>
		#include <linux/gpio.h>

		#include <sound/soc.h>
		#include <sound/uda1380.h>
		#include <sound/jack.h>

		#include <plat/regs-iis.h>

		#include <mach/h1940-latch.h>

		#include <asm/mach-types.h>

		#include "dma.h"
		#include "s3c24xx-i2s.h"
		#include "../codecs/uda1380.h"

		static unsigned int rates[] = {
		11025,
		22050,
		44100,
		};

		static struct snd_pcm_hw_constraint_list hw_rates = {
		.count = ARRAY_SIZE(rates),
		.list = rates,
		.mask = 0,
		};

		static struct snd_soc_jack hp_jack;

		static struct snd_soc_jack_pin hp_jack_pins[] = {
		{
		.pin = "Headphone Jack",
		.mask = SND_JACK_HEADPHONE,
		},
		{
		.pin = "Speaker",
		.mask = SND_JACK_HEADPHONE,
		.invert = 1,
		},
		};

		static struct snd_soc_jack_gpio hp_jack_gpios[] = {
		{
		.gpio = S3C2410_GPG(4),
		.name = "hp-gpio",
		.report = SND_JACK_HEADPHONE,
		.invert = 1,
		.debounce_time = 200,
		},
		};

		static int h1940_startup(struct snd_pcm_substream *substream)
		{
		struct snd_pcm_runtime *runtime = substream->runtime;

		runtime->hw.rate_min = hw_rates.list[0];
		runtime->hw.rate_max = hw_rates.list[hw_rates.count - 1];
		runtime->hw.rates = SNDRV_PCM_RATE_KNOT;

		return snd_pcm_hw_constraint_list(runtime, 0,
		SNDRV_PCM_HW_PARAM_RATE,
		&hw_rates);
		}

		static int h1940_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 div;
		int ret;
		unsigned int rate = params_rate(params);

		switch (rate) {
		case 11025:
		case 22050:
		case 44100:
		div = s3c24xx_i2s_get_clockrate() / (384 * rate);
		if (s3c24xx_i2s_get_clockrate() % (384 * rate) > (192 * rate))
		div++;
		break;
		default:
		dev_err(&rtd->dev, "%s: rate %d is not supported\n",
		__func__, rate);
		return -EINVAL;
		}

		/* set codec DAI configuration */
		ret = snd_soc_dai_set_fmt(codec_dai, SND_SOC_DAIFMT_I2S \|
		SND_SOC_DAIFMT_NB_NF \| SND_SOC_DAIFMT_CBS_CFS);
		if (ret < 0)
		return ret;

		/* set cpu DAI configuration */
		ret = snd_soc_dai_set_fmt(cpu_dai, SND_SOC_DAIFMT_I2S \|
		SND_SOC_DAIFMT_NB_NF \| SND_SOC_DAIFMT_CBS_CFS);
		if (ret < 0)
		return ret;

		/* select clock source */
		ret = snd_soc_dai_set_sysclk(cpu_dai, S3C24XX_CLKSRC_PCLK, rate,
		SND_SOC_CLOCK_OUT);
		if (ret < 0)
		return ret;

		/* set MCLK division for sample rate */
		ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C24XX_DIV_MCLK,
		S3C2410_IISMOD_384FS);
		if (ret < 0)
		return ret;

		/* set BCLK division for sample rate */
		ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C24XX_DIV_BCLK,
		S3C2410_IISMOD_32FS);
		if (ret < 0)
		return ret;

		/* set prescaler division for sample rate */
		ret = snd_soc_dai_set_clkdiv(cpu_dai, S3C24XX_DIV_PRESCALER,
		S3C24XX_PRESCALE(div, div));
		if (ret < 0)
		return ret;

		return 0;
		}

		static struct snd_soc_ops h1940_ops = {
		.startup = h1940_startup,
		.hw_params = h1940_hw_params,
		};

		static int h1940_spk_power(struct snd_soc_dapm_widget *w,
		struct snd_kcontrol *kcontrol, int event)
		{
		if (SND_SOC_DAPM_EVENT_ON(event))
		gpio_set_value(H1940_LATCH_AUDIO_POWER, 1);
		else
		gpio_set_value(H1940_LATCH_AUDIO_POWER, 0);

		return 0;
		}

		/* h1940 machine dapm widgets */
		static const struct snd_soc_dapm_widget uda1380_dapm_widgets[] = {
		SND_SOC_DAPM_HP("Headphone Jack", NULL),
		SND_SOC_DAPM_MIC("Mic Jack", NULL),
		SND_SOC_DAPM_SPK("Speaker", h1940_spk_power),
		};

		/* h1940 machine audio_map */
		static const struct snd_soc_dapm_route audio_map[] = {
		/* headphone connected to VOUTLHP, VOUTRHP */
		{"Headphone Jack", NULL, "VOUTLHP"},
		{"Headphone Jack", NULL, "VOUTRHP"},

		/* ext speaker connected to VOUTL, VOUTR */
		{"Speaker", NULL, "VOUTL"},
		{"Speaker", NULL, "VOUTR"},

		/* mic is connected to VINM */
		{"VINM", NULL, "Mic Jack"},
		};

		static struct platform_device *s3c24xx_snd_device;

		static int h1940_uda1380_init(struct snd_soc_pcm_runtime *rtd)
		{
		struct snd_soc_codec *codec = rtd->codec;
		struct snd_soc_dapm_context *dapm = &codec->dapm;
		int err;

		/* Add h1940 specific widgets */
		err = snd_soc_dapm_new_controls(dapm, uda1380_dapm_widgets,
		ARRAY_SIZE(uda1380_dapm_widgets));
		if (err)
		return err;

		/* Set up h1940 specific audio path audio_mapnects */
		err = snd_soc_dapm_add_routes(dapm, audio_map,
		ARRAY_SIZE(audio_map));
		if (err)
		return err;

		snd_soc_dapm_enable_pin(dapm, "Headphone Jack");
		snd_soc_dapm_enable_pin(dapm, "Speaker");
		snd_soc_dapm_enable_pin(dapm, "Mic Jack");

		snd_soc_dapm_sync(dapm);

		snd_soc_jack_new(codec, "Headphone Jack", SND_JACK_HEADPHONE,
		&hp_jack);

		snd_soc_jack_add_pins(&hp_jack, ARRAY_SIZE(hp_jack_pins),
		hp_jack_pins);

		snd_soc_jack_add_gpios(&hp_jack, ARRAY_SIZE(hp_jack_gpios),
		hp_jack_gpios);

		return 0;
		}

		/* s3c24xx digital audio interface glue - connects codec <--> CPU */
		static struct snd_soc_dai_link h1940_uda1380_dai[] = {
		{
		.name = "uda1380",
		.stream_name = "UDA1380 Duplex",
		.cpu_dai_name = "s3c24xx-iis",
		.codec_dai_name = "uda1380-hifi",
		.init = h1940_uda1380_init,
		.platform_name = "samsung-audio",
		.codec_name = "uda1380-codec.0-001a",
		.ops = &h1940_ops,
		},
		};

		static struct snd_soc_card h1940_asoc = {
		.name = "h1940",
		.dai_link = h1940_uda1380_dai,
		.num_links = ARRAY_SIZE(h1940_uda1380_dai),
		};

		static int __init h1940_init(void)
		{
		int ret;

		if (!machine_is_h1940())
		return -ENODEV;

		/* configure some gpios */
		ret = gpio_request(H1940_LATCH_AUDIO_POWER, "speaker-power");
		if (ret)
		goto err_out;

		ret = gpio_direction_output(H1940_LATCH_AUDIO_POWER, 0);
		if (ret)
		goto err_gpio;

		s3c24xx_snd_device = platform_device_alloc("soc-audio", -1);
		if (!s3c24xx_snd_device) {
		ret = -ENOMEM;
		goto err_gpio;
		}

		platform_set_drvdata(s3c24xx_snd_device, &h1940_asoc);
		ret = platform_device_add(s3c24xx_snd_device);

		if (ret)
		goto err_plat;

		return 0;

		err_plat:
		platform_device_put(s3c24xx_snd_device);
		err_gpio:
		gpio_free(H1940_LATCH_AUDIO_POWER);

		err_out:
		return ret;
		}

		static void __exit h1940_exit(void)
		{
		platform_device_unregister(s3c24xx_snd_device);
		snd_soc_jack_free_gpios(&hp_jack, ARRAY_SIZE(hp_jack_gpios),
		hp_jack_gpios);
		gpio_free(H1940_LATCH_AUDIO_POWER);
		}

		module_init(h1940_init);
		module_exit(h1940_exit);

		/* Module information */
		MODULE_AUTHOR("Arnaud Patard, Vasily Khoruzhick");
		MODULE_DESCRIPTION("ALSA SoC H1940");
		MODULE_LICENSE("GPL");