ASoC: add iPAQ hx4700 machine driver (c26f642e) · Commits · e / devices / android_kernel_xiaomi_markw

sound/soc/pxa/Kconfig

+9 −0

Original line number	Original line	Diff line number	Diff line
	@@ -155,6 +155,15 @@ config SND_SOC_RAUMFELD
	help		help
	Say Y if you want to add support for SoC audio on Raumfeld devices		Say Y if you want to add support for SoC audio on Raumfeld devices

			config SND_PXA2XX_SOC_HX4700
			tristate "SoC Audio support for HP iPAQ hx4700"
			depends on SND_PXA2XX_SOC && MACH_H4700
			select SND_PXA2XX_SOC_I2S
			select SND_SOC_AK4641
			help
			Say Y if you want to add support for SoC audio on the
			HP iPAQ hx4700.

	config SND_PXA2XX_SOC_MAGICIAN		config SND_PXA2XX_SOC_MAGICIAN
	tristate "SoC Audio support for HTC Magician"		tristate "SoC Audio support for HTC Magician"
	depends on SND_PXA2XX_SOC && MACH_MAGICIAN		depends on SND_PXA2XX_SOC && MACH_MAGICIAN

sound/soc/pxa/Makefile

+2 −0

sound/soc/pxa/hx4700.c

0 → 100644

+255 −0

Original line number	Original line	Diff line number	Diff line
			/*
			* SoC audio for HP iPAQ hx4700
			*
			* Copyright (c) 2009 Philipp Zabel
			*
			* 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/timer.h>
			#include <linux/interrupt.h>
			#include <linux/platform_device.h>
			#include <linux/delay.h>
			#include <linux/gpio.h>

			#include <sound/core.h>
			#include <sound/jack.h>
			#include <sound/pcm.h>
			#include <sound/pcm_params.h>
			#include <sound/soc.h>

			#include <mach/hx4700.h>
			#include <asm/mach-types.h>
			#include "pxa2xx-i2s.h"

			#include "../codecs/ak4641.h"

			static struct snd_soc_jack hs_jack;

			/* Headphones jack detection DAPM pin */
			static struct snd_soc_jack_pin hs_jack_pin[] = {
			{
			.pin = "Headphone Jack",
			.mask = SND_JACK_HEADPHONE,
			},
			{
			.pin = "Speaker",
			/* disable speaker when hp jack is inserted */
			.mask = SND_JACK_HEADPHONE,
			.invert = 1,
			},
			};

			/* Headphones jack detection GPIO */
			static struct snd_soc_jack_gpio hs_jack_gpio = {
			.gpio = GPIO75_HX4700_EARPHONE_nDET,
			.invert = true,
			.name = "hp-gpio",
			.report = SND_JACK_HEADPHONE,
			.debounce_time = 200,
			};

			/*
			* iPAQ hx4700 uses I2S for capture and playback.
			*/
			static int hx4700_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 *codec_dai = rtd->codec_dai;
			struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
			int ret = 0;

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

			/* set the I2S system clock as output */
			ret = snd_soc_dai_set_sysclk(cpu_dai, PXA2XX_I2S_SYSCLK, 0,
			SND_SOC_CLOCK_OUT);
			if (ret < 0)
			return ret;

			/* inform codec driver about clock freq *
			* (PXA I2S always uses divider 256) */
			ret = snd_soc_dai_set_sysclk(codec_dai, 0, 256 * params_rate(params),
			SND_SOC_CLOCK_IN);
			if (ret < 0)
			return ret;

			return 0;
			}

			static struct snd_soc_ops hx4700_ops = {
			.hw_params = hx4700_hw_params,
			};

			static int hx4700_spk_power(struct snd_soc_dapm_widget *w,
			struct snd_kcontrol *k, int event)
			{
			gpio_set_value(GPIO107_HX4700_SPK_nSD, !!SND_SOC_DAPM_EVENT_ON(event));
			return 0;
			}

			static int hx4700_hp_power(struct snd_soc_dapm_widget *w,
			struct snd_kcontrol *k, int event)
			{
			gpio_set_value(GPIO92_HX4700_HP_DRIVER, !!SND_SOC_DAPM_EVENT_ON(event));
			return 0;
			}

			/* hx4700 machine dapm widgets */
			static const struct snd_soc_dapm_widget hx4700_dapm_widgets[] = {
			SND_SOC_DAPM_HP("Headphone Jack", hx4700_hp_power),
			SND_SOC_DAPM_SPK("Speaker", hx4700_spk_power),
			SND_SOC_DAPM_MIC("Built-in Microphone", NULL),
			};

			/* hx4700 machine audio_map */
			static const struct snd_soc_dapm_route hx4700_audio_map[] = {

			/* Headphone connected to LOUT, ROUT */
			{"Headphone Jack", NULL, "LOUT"},
			{"Headphone Jack", NULL, "ROUT"},

			/* Speaker connected to MOUT2 */
			{"Speaker", NULL, "MOUT2"},

			/* Microphone connected to MICIN */
			{"MICIN", NULL, "Built-in Microphone"},
			{"AIN", NULL, "MICOUT"},
			};

			/*
			* Logic for a ak4641 as connected on a HP iPAQ hx4700
			*/
			static int hx4700_ak4641_init(struct snd_soc_pcm_runtime *rtd)
			{
			struct snd_soc_codec *codec = rtd->codec;
			struct snd_soc_dapm_context *dapm = &codec->dapm;
			int err;

			/* NC codec pins */
			/* FIXME: is anything connected here? */
			snd_soc_dapm_nc_pin(dapm, "MOUT1");
			snd_soc_dapm_nc_pin(dapm, "MICEXT");
			snd_soc_dapm_nc_pin(dapm, "AUX");

			/* Jack detection API stuff */
			err = snd_soc_jack_new(codec, "Headphone Jack",
			SND_JACK_HEADPHONE, &hs_jack);
			if (err)
			return err;

			err = snd_soc_jack_add_pins(&hs_jack, ARRAY_SIZE(hs_jack_pin),
			hs_jack_pin);
			if (err)
			return err;

			err = snd_soc_jack_add_gpios(&hs_jack, 1, &hs_jack_gpio);

			return err;
			}

			/* hx4700 digital audio interface glue - connects codec <--> CPU */
			static struct snd_soc_dai_link hx4700_dai = {
			.name = "ak4641",
			.stream_name = "AK4641",
			.cpu_dai_name = "pxa2xx-i2s",
			.codec_dai_name = "ak4641-hifi",
			.platform_name = "pxa-pcm-audio",
			.codec_name = "ak4641.0-0012",
			.init = hx4700_ak4641_init,
			.ops = &hx4700_ops,
			};

			/* hx4700 audio machine driver */
			static struct snd_soc_card snd_soc_card_hx4700 = {
			.name = "iPAQ hx4700",
			.dai_link = &hx4700_dai,
			.num_links = 1,
			.dapm_widgets = hx4700_dapm_widgets,
			.num_dapm_widgets = ARRAY_SIZE(hx4700_dapm_widgets),
			.dapm_routes = hx4700_audio_map,
			.num_dapm_routes = ARRAY_SIZE(hx4700_audio_map),
			};

			static struct gpio hx4700_audio_gpios[] = {
			{ GPIO107_HX4700_SPK_nSD, GPIOF_OUT_INIT_HIGH, "SPK_POWER" },
			{ GPIO92_HX4700_HP_DRIVER, GPIOF_OUT_INIT_LOW, "EP_POWER" },
			};

			static int __devinit hx4700_audio_probe(struct platform_device *pdev)
			{
			int ret;

			if (!machine_is_h4700())
			return -ENODEV;

			ret = gpio_request_array(hx4700_audio_gpios,
			ARRAY_SIZE(hx4700_audio_gpios));
			if (ret)
			return ret;

			snd_soc_card_hx4700.dev = &pdev->dev;
			ret = snd_soc_register_card(&snd_soc_card_hx4700);
			if (ret)
			return ret;

			return 0;
			}

			static int __devexit hx4700_audio_remove(struct platform_device *pdev)
			{
			snd_soc_jack_free_gpios(&hs_jack, 1, &hs_jack_gpio);
			snd_soc_unregister_card(&snd_soc_card_hx4700);

			gpio_set_value(GPIO92_HX4700_HP_DRIVER, 0);
			gpio_set_value(GPIO107_HX4700_SPK_nSD, 0);

			gpio_free_array(hx4700_audio_gpios, ARRAY_SIZE(hx4700_audio_gpios));
			return 0;
			}

			static struct platform_driver hx4700_audio_driver = {
			.driver = {
			.name = "hx4700-audio",
			.owner = THIS_MODULE,
			.pm = &snd_soc_pm_ops,
			},
			.probe = hx4700_audio_probe,
			.remove = __devexit_p(hx4700_audio_remove),
			};

			static int __init hx4700_modinit(void)
			{
			return platform_driver_register(&hx4700_audio_driver);
			}
			module_init(hx4700_modinit);

			static void __exit hx4700_modexit(void)
			{
			platform_driver_unregister(&hx4700_audio_driver);
			}

			module_exit(hx4700_modexit);

			MODULE_AUTHOR("Philipp Zabel");
			MODULE_DESCRIPTION("ALSA SoC iPAQ hx4700");
			MODULE_LICENSE("GPL");
			MODULE_ALIAS("platform:hx4700-audio");

Original line number	Original line	Diff line number	Diff line
	@@ -22,6 +22,7 @@ snd-soc-palm27x-objs := palm27x.o
	snd-soc-saarb-objs := saarb.o		snd-soc-saarb-objs := saarb.o
	snd-soc-tavorevb3-objs := tavorevb3.o		snd-soc-tavorevb3-objs := tavorevb3.o
	snd-soc-zylonite-objs := zylonite.o		snd-soc-zylonite-objs := zylonite.o
			snd-soc-hx4700-objs := hx4700.o
	snd-soc-magician-objs := magician.o		snd-soc-magician-objs := magician.o
	snd-soc-mioa701-objs := mioa701_wm9713.o		snd-soc-mioa701-objs := mioa701_wm9713.o
	snd-soc-z2-objs := z2.o		snd-soc-z2-objs := z2.o
	@@ -37,6 +38,7 @@ obj-$(CONFIG_SND_PXA2XX_SOC_E800) += snd-soc-e800.o
	obj-$(CONFIG_SND_PXA2XX_SOC_SPITZ) += snd-soc-spitz.o		obj-$(CONFIG_SND_PXA2XX_SOC_SPITZ) += snd-soc-spitz.o
	obj-$(CONFIG_SND_PXA2XX_SOC_EM_X270) += snd-soc-em-x270.o		obj-$(CONFIG_SND_PXA2XX_SOC_EM_X270) += snd-soc-em-x270.o
	obj-$(CONFIG_SND_PXA2XX_SOC_PALM27X) += snd-soc-palm27x.o		obj-$(CONFIG_SND_PXA2XX_SOC_PALM27X) += snd-soc-palm27x.o
			obj-$(CONFIG_SND_PXA2XX_SOC_HX4700) += snd-soc-hx4700.o
	obj-$(CONFIG_SND_PXA2XX_SOC_MAGICIAN) += snd-soc-magician.o		obj-$(CONFIG_SND_PXA2XX_SOC_MAGICIAN) += snd-soc-magician.o
	obj-$(CONFIG_SND_PXA2XX_SOC_MIOA701) += snd-soc-mioa701.o		obj-$(CONFIG_SND_PXA2XX_SOC_MIOA701) += snd-soc-mioa701.o
	obj-$(CONFIG_SND_PXA2XX_SOC_Z2) += snd-soc-z2.o		obj-$(CONFIG_SND_PXA2XX_SOC_Z2) += snd-soc-z2.o