[deliverable/linux.git] / sound / soc / tegra / tegra_wm8903.c

/*
 * tegra_wm8903.c - Tegra machine ASoC driver for boards using WM8903 codec.
 *
 * Author: Stephen Warren <swarren@nvidia.com>
 * Copyright (C) 2010-2011 - NVIDIA, Inc.
 *
 * Based on code copyright/by:
 *
 * (c) 2009, 2010 Nvidia Graphics Pvt. Ltd.
 *
 * Copyright 2007 Wolfson Microelectronics PLC.
 * Author: Graeme Gregory
 *         graeme.gregory@wolfsonmicro.com or linux@wolfsonmicro.com
 *
 * This program is free software; you can redistribute it and/or
 * modify it under the terms of the GNU General Public License
 * version 2 as published by the Free Software Foundation.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
 * 02110-1301 USA
 *
 */

#include <asm/mach-types.h>

#include <linux/module.h>
#include <linux/platform_device.h>
#include <linux/slab.h>
#include <linux/gpio.h>

#include <mach/tegra_wm8903_pdata.h>

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

#include "../codecs/wm8903.h"

#include "tegra_das.h"
#include "tegra_i2s.h"
#include "tegra_pcm.h"
#include "tegra_asoc_utils.h"

#define DRV_NAME "tegra-snd-wm8903"

#define GPIO_SPKR_EN    BIT(0)
#define GPIO_HP_MUTE    BIT(1)
#define GPIO_INT_MIC_EN BIT(2)
#define GPIO_EXT_MIC_EN BIT(3)

struct tegra_wm8903 {
	struct tegra_asoc_utils_data util_data;
	struct tegra_wm8903_platform_data *pdata;
	int gpio_requested;
};

static int tegra_wm8903_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;
	struct snd_soc_codec *codec = rtd->codec;
	struct snd_soc_card *card = codec->card;
	struct tegra_wm8903 *machine = snd_soc_card_get_drvdata(card);
	int srate, mclk, mclk_change;
	int err;

	srate = params_rate(params);
	switch (srate) {
	case 64000:
	case 88200:
	case 96000:
		mclk = 128 * srate;
		break;
	default:
		mclk = 256 * srate;
		break;
	}
	/* FIXME: Codec only requires >= 3MHz if OSR==0 */
	while (mclk < 6000000)
		mclk *= 2;

	err = tegra_asoc_utils_set_rate(&machine->util_data, srate, mclk,
					&mclk_change);
	if (err < 0) {
		dev_err(card->dev, "Can't configure clocks\n");
		return err;
	}

	err = snd_soc_dai_set_fmt(codec_dai,
					SND_SOC_DAIFMT_I2S |
					SND_SOC_DAIFMT_NB_NF |
					SND_SOC_DAIFMT_CBS_CFS);
	if (err < 0) {
		dev_err(card->dev, "codec_dai fmt not set\n");
		return err;
	}

	err = snd_soc_dai_set_fmt(cpu_dai,
					SND_SOC_DAIFMT_I2S |
					SND_SOC_DAIFMT_NB_NF |
					SND_SOC_DAIFMT_CBS_CFS);
	if (err < 0) {
		dev_err(card->dev, "cpu_dai fmt not set\n");
		return err;
	}

	if (mclk_change) {
		err = snd_soc_dai_set_sysclk(codec_dai, 0, mclk,
					     SND_SOC_CLOCK_IN);
		if (err < 0) {
			dev_err(card->dev, "codec_dai clock not set\n");
			return err;
		}
	}

	return 0;
}

static struct snd_soc_ops tegra_wm8903_ops = {
	.hw_params = tegra_wm8903_hw_params,
};

static struct snd_soc_jack tegra_wm8903_hp_jack;

static struct snd_soc_jack_pin tegra_wm8903_hp_jack_pins[] = {
	{
		.pin = "Headphone Jack",
		.mask = SND_JACK_HEADPHONE,
	},
};

static struct snd_soc_jack_gpio tegra_wm8903_hp_jack_gpio = {
	.name = "headphone detect",
	.report = SND_JACK_HEADPHONE,
	.debounce_time = 150,
	.invert = 1,
};

static struct snd_soc_jack tegra_wm8903_mic_jack;

static struct snd_soc_jack_pin tegra_wm8903_mic_jack_pins[] = {
	{
		.pin = "Mic Jack",
		.mask = SND_JACK_MICROPHONE,
	},
};

static int tegra_wm8903_event_int_spk(struct snd_soc_dapm_widget *w,
					struct snd_kcontrol *k, int event)
{
	struct snd_soc_codec *codec = w->codec;
	struct snd_soc_card *card = codec->card;
	struct tegra_wm8903 *machine = snd_soc_card_get_drvdata(card);
	struct tegra_wm8903_platform_data *pdata = machine->pdata;

	if (!(machine->gpio_requested & GPIO_SPKR_EN))
		return 0;

	gpio_set_value_cansleep(pdata->gpio_spkr_en,
				SND_SOC_DAPM_EVENT_ON(event));

	return 0;
}

static int tegra_wm8903_event_hp(struct snd_soc_dapm_widget *w,
					struct snd_kcontrol *k, int event)
{
	struct snd_soc_codec *codec = w->codec;
	struct snd_soc_card *card = codec->card;
	struct tegra_wm8903 *machine = snd_soc_card_get_drvdata(card);
	struct tegra_wm8903_platform_data *pdata = machine->pdata;

	if (!(machine->gpio_requested & GPIO_HP_MUTE))
		return 0;

	gpio_set_value_cansleep(pdata->gpio_hp_mute,
				!SND_SOC_DAPM_EVENT_ON(event));

	return 0;
}

static const struct snd_soc_dapm_widget tegra_wm8903_dapm_widgets[] = {
	SND_SOC_DAPM_SPK("Int Spk", tegra_wm8903_event_int_spk),
	SND_SOC_DAPM_HP("Headphone Jack", tegra_wm8903_event_hp),
	SND_SOC_DAPM_MIC("Mic Jack", NULL),
};

static const struct snd_soc_dapm_route harmony_audio_map[] = {
	{"Headphone Jack", NULL, "HPOUTR"},
	{"Headphone Jack", NULL, "HPOUTL"},
	{"Int Spk", NULL, "ROP"},
	{"Int Spk", NULL, "RON"},
	{"Int Spk", NULL, "LOP"},
	{"Int Spk", NULL, "LON"},
	{"Mic Bias", NULL, "Mic Jack"},
	{"IN1L", NULL, "Mic Bias"},
};

static const struct snd_soc_dapm_route seaboard_audio_map[] = {
	{"Headphone Jack", NULL, "HPOUTR"},
	{"Headphone Jack", NULL, "HPOUTL"},
	{"Int Spk", NULL, "ROP"},
	{"Int Spk", NULL, "RON"},
	{"Int Spk", NULL, "LOP"},
	{"Int Spk", NULL, "LON"},
	{"Mic Bias", NULL, "Mic Jack"},
	{"IN1R", NULL, "Mic Bias"},
};

static const struct snd_soc_dapm_route kaen_audio_map[] = {
	{"Headphone Jack", NULL, "HPOUTR"},
	{"Headphone Jack", NULL, "HPOUTL"},
	{"Int Spk", NULL, "ROP"},
	{"Int Spk", NULL, "RON"},
	{"Int Spk", NULL, "LOP"},
	{"Int Spk", NULL, "LON"},
	{"Mic Bias", NULL, "Mic Jack"},
	{"IN2R", NULL, "Mic Bias"},
};

static const struct snd_soc_dapm_route aebl_audio_map[] = {
	{"Headphone Jack", NULL, "HPOUTR"},
	{"Headphone Jack", NULL, "HPOUTL"},
	{"Int Spk", NULL, "LINEOUTR"},
	{"Int Spk", NULL, "LINEOUTL"},
	{"Mic Bias", NULL, "Mic Jack"},
	{"IN1R", NULL, "Mic Bias"},
};

static const struct snd_kcontrol_new tegra_wm8903_controls[] = {
	SOC_DAPM_PIN_SWITCH("Int Spk"),
};

static int tegra_wm8903_init(struct snd_soc_pcm_runtime *rtd)
{
	struct snd_soc_codec *codec = rtd->codec;
	struct snd_soc_dapm_context *dapm = &codec->dapm;
	struct snd_soc_card *card = codec->card;
	struct tegra_wm8903 *machine = snd_soc_card_get_drvdata(card);
	struct tegra_wm8903_platform_data *pdata = machine->pdata;
	int ret;

	if (gpio_is_valid(pdata->gpio_spkr_en)) {
		ret = gpio_request(pdata->gpio_spkr_en, "spkr_en");
		if (ret) {
			dev_err(card->dev, "cannot get spkr_en gpio\n");
			return ret;
		}
		machine->gpio_requested |= GPIO_SPKR_EN;

		gpio_direction_output(pdata->gpio_spkr_en, 0);
	}

	if (gpio_is_valid(pdata->gpio_hp_mute)) {
		ret = gpio_request(pdata->gpio_hp_mute, "hp_mute");
		if (ret) {
			dev_err(card->dev, "cannot get hp_mute gpio\n");
			return ret;
		}
		machine->gpio_requested |= GPIO_HP_MUTE;

		gpio_direction_output(pdata->gpio_hp_mute, 0);
	}

	if (gpio_is_valid(pdata->gpio_int_mic_en)) {
		ret = gpio_request(pdata->gpio_int_mic_en, "int_mic_en");
		if (ret) {
			dev_err(card->dev, "cannot get int_mic_en gpio\n");
			return ret;
		}
		machine->gpio_requested |= GPIO_INT_MIC_EN;

		/* Disable int mic; enable signal is active-high */
		gpio_direction_output(pdata->gpio_int_mic_en, 0);
	}

	if (gpio_is_valid(pdata->gpio_ext_mic_en)) {
		ret = gpio_request(pdata->gpio_ext_mic_en, "ext_mic_en");
		if (ret) {
			dev_err(card->dev, "cannot get ext_mic_en gpio\n");
			return ret;
		}
		machine->gpio_requested |= GPIO_EXT_MIC_EN;

		/* Enable ext mic; enable signal is active-low */
		gpio_direction_output(pdata->gpio_ext_mic_en, 0);
	}

	ret = snd_soc_add_controls(codec, tegra_wm8903_controls,
				   ARRAY_SIZE(tegra_wm8903_controls));
	if (ret < 0)
		return ret;

	snd_soc_dapm_new_controls(dapm, tegra_wm8903_dapm_widgets,
					ARRAY_SIZE(tegra_wm8903_dapm_widgets));

	if (machine_is_harmony() || machine_is_ventana()) {
		snd_soc_dapm_add_routes(dapm, harmony_audio_map,
					ARRAY_SIZE(harmony_audio_map));
	} else if (machine_is_seaboard()) {
		snd_soc_dapm_add_routes(dapm, seaboard_audio_map,
					ARRAY_SIZE(seaboard_audio_map));
	} else if (machine_is_kaen()) {
		snd_soc_dapm_add_routes(dapm, kaen_audio_map,
					ARRAY_SIZE(kaen_audio_map));
	} else {
		snd_soc_dapm_add_routes(dapm, aebl_audio_map,
					ARRAY_SIZE(aebl_audio_map));
	}

	if (gpio_is_valid(pdata->gpio_hp_det)) {
		tegra_wm8903_hp_jack_gpio.gpio = pdata->gpio_hp_det;
		snd_soc_jack_new(codec, "Headphone Jack", SND_JACK_HEADPHONE,
				&tegra_wm8903_hp_jack);
		snd_soc_jack_add_pins(&tegra_wm8903_hp_jack,
					ARRAY_SIZE(tegra_wm8903_hp_jack_pins),
					tegra_wm8903_hp_jack_pins);
		snd_soc_jack_add_gpios(&tegra_wm8903_hp_jack,
					1,
					&tegra_wm8903_hp_jack_gpio);
	}

	snd_soc_jack_new(codec, "Mic Jack", SND_JACK_MICROPHONE,
			 &tegra_wm8903_mic_jack);
	snd_soc_jack_add_pins(&tegra_wm8903_mic_jack,
			      ARRAY_SIZE(tegra_wm8903_mic_jack_pins),
			      tegra_wm8903_mic_jack_pins);
	wm8903_mic_detect(codec, &tegra_wm8903_mic_jack, SND_JACK_MICROPHONE,
				0);

	snd_soc_dapm_force_enable_pin(dapm, "Mic Bias");

	/* FIXME: Calculate automatically based on DAPM routes? */
	if (!machine_is_harmony() && !machine_is_ventana())
		snd_soc_dapm_nc_pin(dapm, "IN1L");
	if (!machine_is_seaboard() && !machine_is_aebl())
		snd_soc_dapm_nc_pin(dapm, "IN1R");
	snd_soc_dapm_nc_pin(dapm, "IN2L");
	if (!machine_is_kaen())
		snd_soc_dapm_nc_pin(dapm, "IN2R");
	snd_soc_dapm_nc_pin(dapm, "IN3L");
	snd_soc_dapm_nc_pin(dapm, "IN3R");

	if (machine_is_aebl()) {
		snd_soc_dapm_nc_pin(dapm, "LON");
		snd_soc_dapm_nc_pin(dapm, "RON");
		snd_soc_dapm_nc_pin(dapm, "ROP");
		snd_soc_dapm_nc_pin(dapm, "LOP");
	} else {
		snd_soc_dapm_nc_pin(dapm, "LINEOUTR");
		snd_soc_dapm_nc_pin(dapm, "LINEOUTL");
	}

	snd_soc_dapm_sync(dapm);

	return 0;
}

static struct snd_soc_dai_link tegra_wm8903_dai = {
	.name = "WM8903",
	.stream_name = "WM8903 PCM",
	.codec_name = "wm8903.0-001a",
	.platform_name = "tegra-pcm-audio",
	.cpu_dai_name = "tegra-i2s.0",
	.codec_dai_name = "wm8903-hifi",
	.init = tegra_wm8903_init,
	.ops = &tegra_wm8903_ops,
};

static struct snd_soc_card snd_soc_tegra_wm8903 = {
	.name = "tegra-wm8903",
	.dai_link = &tegra_wm8903_dai,
	.num_links = 1,
};

static __devinit int tegra_wm8903_driver_probe(struct platform_device *pdev)
{
	struct snd_soc_card *card = &snd_soc_tegra_wm8903;
	struct tegra_wm8903 *machine;
	struct tegra_wm8903_platform_data *pdata;
	int ret;

	pdata = pdev->dev.platform_data;
	if (!pdata) {
		dev_err(&pdev->dev, "No platform data supplied\n");
		return -EINVAL;
	}

	machine = kzalloc(sizeof(struct tegra_wm8903), GFP_KERNEL);
	if (!machine) {
		dev_err(&pdev->dev, "Can't allocate tegra_wm8903 struct\n");
		return -ENOMEM;
	}

	machine->pdata = pdata;

	ret = tegra_asoc_utils_init(&machine->util_data, &pdev->dev);
	if (ret)
		goto err_free_machine;

	card->dev = &pdev->dev;
	platform_set_drvdata(pdev, card);
	snd_soc_card_set_drvdata(card, machine);

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

	return 0;

err_clear_drvdata:
	snd_soc_card_set_drvdata(card, NULL);
	platform_set_drvdata(pdev, NULL);
	card->dev = NULL;
	tegra_asoc_utils_fini(&machine->util_data);
err_free_machine:
	kfree(machine);
	return ret;
}

static int __devexit tegra_wm8903_driver_remove(struct platform_device *pdev)
{
	struct snd_soc_card *card = platform_get_drvdata(pdev);
	struct tegra_wm8903 *machine = snd_soc_card_get_drvdata(card);
	struct tegra_wm8903_platform_data *pdata = machine->pdata;

	snd_soc_unregister_card(card);

	snd_soc_card_set_drvdata(card, NULL);
	platform_set_drvdata(pdev, NULL);
	card->dev = NULL;

	tegra_asoc_utils_fini(&machine->util_data);

	if (machine->gpio_requested & GPIO_EXT_MIC_EN)
		gpio_free(pdata->gpio_ext_mic_en);
	if (machine->gpio_requested & GPIO_INT_MIC_EN)
		gpio_free(pdata->gpio_int_mic_en);
	if (machine->gpio_requested & GPIO_HP_MUTE)
		gpio_free(pdata->gpio_hp_mute);
	if (machine->gpio_requested & GPIO_SPKR_EN)
		gpio_free(pdata->gpio_spkr_en);

	kfree(machine);

	return 0;
}

static struct platform_driver tegra_wm8903_driver = {
	.driver = {
		.name = DRV_NAME,
		.owner = THIS_MODULE,
		.pm = &snd_soc_pm_ops,
	},
	.probe = tegra_wm8903_driver_probe,
	.remove = __devexit_p(tegra_wm8903_driver_remove),
};

static int __init tegra_wm8903_modinit(void)
{
	return platform_driver_register(&tegra_wm8903_driver);
}
module_init(tegra_wm8903_modinit);

static void __exit tegra_wm8903_modexit(void)
{
	platform_driver_unregister(&tegra_wm8903_driver);
}
module_exit(tegra_wm8903_modexit);

MODULE_AUTHOR("Stephen Warren <swarren@nvidia.com>");
MODULE_DESCRIPTION("Tegra+WM8903 machine ASoC driver");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:" DRV_NAME);
Commit	Line	Data
a8bf1ba1	1	/*
dc0a50af	2	* tegra_wm8903.c - Tegra machine ASoC driver for boards using WM8903 codec.
a8bf1ba1 SW	3	*
a8bf1ba1 SW	4	* Author: Stephen Warren <swarren@nvidia.com>
72de2b1a	5	* Copyright (C) 2010-2011 - NVIDIA, Inc.
a8bf1ba1 SW	6	*
	7	* Based on code copyright/by:
	8	*
	9	* (c) 2009, 2010 Nvidia Graphics Pvt. Ltd.
	10	*
	11	* Copyright 2007 Wolfson Microelectronics PLC.
	12	* Author: Graeme Gregory
	13	* graeme.gregory@wolfsonmicro.com or linux@wolfsonmicro.com
	14	*
	15	* This program is free software; you can redistribute it and/or
	16	* modify it under the terms of the GNU General Public License
	17	* version 2 as published by the Free Software Foundation.
	18	*
	19	* This program is distributed in the hope that it will be useful, but
	20	* WITHOUT ANY WARRANTY; without even the implied warranty of
	21	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
	22	* General Public License for more details.
	23	*
	24	* You should have received a copy of the GNU General Public License
	25	* along with this program; if not, write to the Free Software
	26	* Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA
	27	* 02110-1301 USA
	28	*
	29	*/
	30
	31	#include <asm/mach-types.h>
72de2b1a	32
a8bf1ba1	33	#include <linux/module.h>
72de2b1a SW	34	#include <linux/platform_device.h>
72de2b1a SW	35	#include <linux/slab.h>
6e267645 SW	36	#include <linux/gpio.h>
6e267645 SW	37
4651d556	38	#include <mach/tegra_wm8903_pdata.h>
72de2b1a	39
a8bf1ba1	40	#include <sound/core.h>
f7d3e403	41	#include <sound/jack.h>
a8bf1ba1 SW	42	#include <sound/pcm.h>
	43	#include <sound/pcm_params.h>
	44	#include <sound/soc.h>
	45
41b5f9b3 SW	46	#include "../codecs/wm8903.h"
41b5f9b3 SW	47
a8bf1ba1 SW	48	#include "tegra_das.h"
	49	#include "tegra_i2s.h"
	50	#include "tegra_pcm.h"
	51	#include "tegra_asoc_utils.h"
	52
7b33af25	53	#define DRV_NAME "tegra-snd-wm8903"
a8bf1ba1	54
bf1b1328	55	#define GPIO_SPKR_EN BIT(0)
773b1d3d SW	56	#define GPIO_HP_MUTE BIT(1)
	57	#define GPIO_INT_MIC_EN BIT(2)
	58	#define GPIO_EXT_MIC_EN BIT(3)
bf1b1328	59
dc0a50af	60	struct tegra_wm8903 {
d64e57ce	61	struct tegra_asoc_utils_data util_data;
4651d556	62	struct tegra_wm8903_platform_data *pdata;
bf1b1328	63	int gpio_requested;
72de2b1a	64	};
a8bf1ba1	65
dc0a50af	66	static int tegra_wm8903_hw_params(struct snd_pcm_substream *substream,
a8bf1ba1 SW	67	struct snd_pcm_hw_params *params)
	68	{
	69	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	70	struct snd_soc_dai *codec_dai = rtd->codec_dai;
	71	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
c244d477 SW	72	struct snd_soc_codec *codec = rtd->codec;
c244d477 SW	73	struct snd_soc_card *card = codec->card;
dc0a50af	74	struct tegra_wm8903 *machine = snd_soc_card_get_drvdata(card);
a8bf1ba1 SW	75	int srate, mclk, mclk_change;
	76	int err;
	77
	78	srate = params_rate(params);
	79	switch (srate) {
	80	case 64000:
	81	case 88200:
	82	case 96000:
	83	mclk = 128 * srate;
	84	break;
	85	default:
	86	mclk = 256 * srate;
	87	break;
	88	}
	89	/* FIXME: Codec only requires >= 3MHz if OSR==0 */
	90	while (mclk < 6000000)
	91	mclk *= 2;
	92
dc0a50af	93	err = tegra_asoc_utils_set_rate(&machine->util_data, srate, mclk,
d64e57ce	94	&mclk_change);
a8bf1ba1	95	if (err < 0) {
c244d477	96	dev_err(card->dev, "Can't configure clocks\n");
a8bf1ba1 SW	97	return err;
	98	}
	99
	100	err = snd_soc_dai_set_fmt(codec_dai,
	101	SND_SOC_DAIFMT_I2S \|
	102	SND_SOC_DAIFMT_NB_NF \|
	103	SND_SOC_DAIFMT_CBS_CFS);
	104	if (err < 0) {
c244d477	105	dev_err(card->dev, "codec_dai fmt not set\n");
a8bf1ba1 SW	106	return err;
	107	}
	108
	109	err = snd_soc_dai_set_fmt(cpu_dai,
	110	SND_SOC_DAIFMT_I2S \|
	111	SND_SOC_DAIFMT_NB_NF \|
	112	SND_SOC_DAIFMT_CBS_CFS);
	113	if (err < 0) {
c244d477	114	dev_err(card->dev, "cpu_dai fmt not set\n");
a8bf1ba1 SW	115	return err;
	116	}
	117
	118	if (mclk_change) {
bc72fe0c SW	119	err = snd_soc_dai_set_sysclk(codec_dai, 0, mclk,
	120	SND_SOC_CLOCK_IN);
	121	if (err < 0) {
c244d477	122	dev_err(card->dev, "codec_dai clock not set\n");
bc72fe0c SW	123	return err;
bc72fe0c SW	124	}
a8bf1ba1 SW	125	}
	126
	127	return 0;
	128	}
	129
dc0a50af SW	130	static struct snd_soc_ops tegra_wm8903_ops = {
dc0a50af SW	131	.hw_params = tegra_wm8903_hw_params,
a8bf1ba1 SW	132	};
a8bf1ba1 SW	133
dc0a50af	134	static struct snd_soc_jack tegra_wm8903_hp_jack;
f7d3e403	135
dc0a50af	136	static struct snd_soc_jack_pin tegra_wm8903_hp_jack_pins[] = {
f7d3e403 SW	137	{
	138	.pin = "Headphone Jack",
	139	.mask = SND_JACK_HEADPHONE,
	140	},
	141	};
	142
3eb25f99 SW	143	static struct snd_soc_jack_gpio tegra_wm8903_hp_jack_gpio = {
	144	.name = "headphone detect",
	145	.report = SND_JACK_HEADPHONE,
	146	.debounce_time = 150,
	147	.invert = 1,
f7d3e403 SW	148	};
f7d3e403 SW	149
dc0a50af	150	static struct snd_soc_jack tegra_wm8903_mic_jack;
41b5f9b3	151
dc0a50af	152	static struct snd_soc_jack_pin tegra_wm8903_mic_jack_pins[] = {
41b5f9b3 SW	153	{
	154	.pin = "Mic Jack",
	155	.mask = SND_JACK_MICROPHONE,
	156	},
	157	};
	158
dc0a50af	159	static int tegra_wm8903_event_int_spk(struct snd_soc_dapm_widget *w,
6e267645 SW	160	struct snd_kcontrol *k, int event)
	161	{
	162	struct snd_soc_codec *codec = w->codec;
	163	struct snd_soc_card *card = codec->card;
dc0a50af SW	164	struct tegra_wm8903 *machine = snd_soc_card_get_drvdata(card);
dc0a50af SW	165	struct tegra_wm8903_platform_data *pdata = machine->pdata;
6e267645	166
773b1d3d SW	167	if (!(machine->gpio_requested & GPIO_SPKR_EN))
	168	return 0;
	169
6e267645	170	gpio_set_value_cansleep(pdata->gpio_spkr_en,
f9eabc3d	171	SND_SOC_DAPM_EVENT_ON(event));
6e267645 SW	172
	173	return 0;
	174	}
	175
773b1d3d SW	176	static int tegra_wm8903_event_hp(struct snd_soc_dapm_widget *w,
	177	struct snd_kcontrol *k, int event)
	178	{
	179	struct snd_soc_codec *codec = w->codec;
	180	struct snd_soc_card *card = codec->card;
	181	struct tegra_wm8903 *machine = snd_soc_card_get_drvdata(card);
	182	struct tegra_wm8903_platform_data *pdata = machine->pdata;
	183
	184	if (!(machine->gpio_requested & GPIO_HP_MUTE))
	185	return 0;
	186
	187	gpio_set_value_cansleep(pdata->gpio_hp_mute,
	188	!SND_SOC_DAPM_EVENT_ON(event));
	189
	190	return 0;
	191	}
	192
dc0a50af SW	193	static const struct snd_soc_dapm_widget tegra_wm8903_dapm_widgets[] = {
dc0a50af SW	194	SND_SOC_DAPM_SPK("Int Spk", tegra_wm8903_event_int_spk),
773b1d3d	195	SND_SOC_DAPM_HP("Headphone Jack", tegra_wm8903_event_hp),
62ffac4d SW	196	SND_SOC_DAPM_MIC("Mic Jack", NULL),
	197	};
	198
	199	static const struct snd_soc_dapm_route harmony_audio_map[] = {
	200	{"Headphone Jack", NULL, "HPOUTR"},
	201	{"Headphone Jack", NULL, "HPOUTL"},
6e267645 SW	202	{"Int Spk", NULL, "ROP"},
	203	{"Int Spk", NULL, "RON"},
	204	{"Int Spk", NULL, "LOP"},
	205	{"Int Spk", NULL, "LON"},
62ffac4d SW	206	{"Mic Bias", NULL, "Mic Jack"},
	207	{"IN1L", NULL, "Mic Bias"},
	208	};
	209
773b1d3d SW	210	static const struct snd_soc_dapm_route seaboard_audio_map[] = {
	211	{"Headphone Jack", NULL, "HPOUTR"},
	212	{"Headphone Jack", NULL, "HPOUTL"},
	213	{"Int Spk", NULL, "ROP"},
	214	{"Int Spk", NULL, "RON"},
	215	{"Int Spk", NULL, "LOP"},
	216	{"Int Spk", NULL, "LON"},
	217	{"Mic Bias", NULL, "Mic Jack"},
	218	{"IN1R", NULL, "Mic Bias"},
	219	};
	220
	221	static const struct snd_soc_dapm_route kaen_audio_map[] = {
	222	{"Headphone Jack", NULL, "HPOUTR"},
	223	{"Headphone Jack", NULL, "HPOUTL"},
	224	{"Int Spk", NULL, "ROP"},
	225	{"Int Spk", NULL, "RON"},
	226	{"Int Spk", NULL, "LOP"},
	227	{"Int Spk", NULL, "LON"},
	228	{"Mic Bias", NULL, "Mic Jack"},
	229	{"IN2R", NULL, "Mic Bias"},
	230	};
	231
	232	static const struct snd_soc_dapm_route aebl_audio_map[] = {
	233	{"Headphone Jack", NULL, "HPOUTR"},
	234	{"Headphone Jack", NULL, "HPOUTL"},
	235	{"Int Spk", NULL, "LINEOUTR"},
	236	{"Int Spk", NULL, "LINEOUTL"},
	237	{"Mic Bias", NULL, "Mic Jack"},
	238	{"IN1R", NULL, "Mic Bias"},
	239	};
	240
dc0a50af	241	static const struct snd_kcontrol_new tegra_wm8903_controls[] = {
3d8bc390 SW	242	SOC_DAPM_PIN_SWITCH("Int Spk"),
	243	};
	244
dc0a50af	245	static int tegra_wm8903_init(struct snd_soc_pcm_runtime *rtd)
62ffac4d SW	246	{
	247	struct snd_soc_codec *codec = rtd->codec;
	248	struct snd_soc_dapm_context *dapm = &codec->dapm;
6e267645	249	struct snd_soc_card *card = codec->card;
dc0a50af SW	250	struct tegra_wm8903 *machine = snd_soc_card_get_drvdata(card);
dc0a50af SW	251	struct tegra_wm8903_platform_data *pdata = machine->pdata;
6e267645 SW	252	int ret;
6e267645 SW	253
773b1d3d SW	254	if (gpio_is_valid(pdata->gpio_spkr_en)) {
	255	ret = gpio_request(pdata->gpio_spkr_en, "spkr_en");
	256	if (ret) {
	257	dev_err(card->dev, "cannot get spkr_en gpio\n");
	258	return ret;
	259	}
	260	machine->gpio_requested \|= GPIO_SPKR_EN;
	261
	262	gpio_direction_output(pdata->gpio_spkr_en, 0);
6e267645	263	}
6e267645	264
773b1d3d SW	265	if (gpio_is_valid(pdata->gpio_hp_mute)) {
	266	ret = gpio_request(pdata->gpio_hp_mute, "hp_mute");
	267	if (ret) {
	268	dev_err(card->dev, "cannot get hp_mute gpio\n");
	269	return ret;
	270	}
	271	machine->gpio_requested \|= GPIO_HP_MUTE;
62ffac4d	272
773b1d3d	273	gpio_direction_output(pdata->gpio_hp_mute, 0);
bf1b1328	274	}
bf1b1328	275
773b1d3d SW	276	if (gpio_is_valid(pdata->gpio_int_mic_en)) {
	277	ret = gpio_request(pdata->gpio_int_mic_en, "int_mic_en");
	278	if (ret) {
	279	dev_err(card->dev, "cannot get int_mic_en gpio\n");
	280	return ret;
	281	}
	282	machine->gpio_requested \|= GPIO_INT_MIC_EN;
bf1b1328	283
773b1d3d SW	284	/* Disable int mic; enable signal is active-high */
773b1d3d SW	285	gpio_direction_output(pdata->gpio_int_mic_en, 0);
bf1b1328	286	}
bf1b1328	287
773b1d3d SW	288	if (gpio_is_valid(pdata->gpio_ext_mic_en)) {
	289	ret = gpio_request(pdata->gpio_ext_mic_en, "ext_mic_en");
	290	if (ret) {
	291	dev_err(card->dev, "cannot get ext_mic_en gpio\n");
	292	return ret;
	293	}
	294	machine->gpio_requested \|= GPIO_EXT_MIC_EN;
	295
	296	/* Enable ext mic; enable signal is active-low */
	297	gpio_direction_output(pdata->gpio_ext_mic_en, 0);
	298	}
bf1b1328	299
dc0a50af SW	300	ret = snd_soc_add_controls(codec, tegra_wm8903_controls,
dc0a50af SW	301	ARRAY_SIZE(tegra_wm8903_controls));
3d8bc390 SW	302	if (ret < 0)
	303	return ret;
	304
dc0a50af SW	305	snd_soc_dapm_new_controls(dapm, tegra_wm8903_dapm_widgets,
dc0a50af SW	306	ARRAY_SIZE(tegra_wm8903_dapm_widgets));
62ffac4d	307
773b1d3d SW	308	if (machine_is_harmony() \|\| machine_is_ventana()) {
	309	snd_soc_dapm_add_routes(dapm, harmony_audio_map,
	310	ARRAY_SIZE(harmony_audio_map));
	311	} else if (machine_is_seaboard()) {
	312	snd_soc_dapm_add_routes(dapm, seaboard_audio_map,
	313	ARRAY_SIZE(seaboard_audio_map));
	314	} else if (machine_is_kaen()) {
	315	snd_soc_dapm_add_routes(dapm, kaen_audio_map,
	316	ARRAY_SIZE(kaen_audio_map));
	317	} else {
	318	snd_soc_dapm_add_routes(dapm, aebl_audio_map,
	319	ARRAY_SIZE(aebl_audio_map));
	320	}
62ffac4d	321
773b1d3d SW	322	if (gpio_is_valid(pdata->gpio_hp_det)) {
	323	tegra_wm8903_hp_jack_gpio.gpio = pdata->gpio_hp_det;
	324	snd_soc_jack_new(codec, "Headphone Jack", SND_JACK_HEADPHONE,
	325	&tegra_wm8903_hp_jack);
	326	snd_soc_jack_add_pins(&tegra_wm8903_hp_jack,
	327	ARRAY_SIZE(tegra_wm8903_hp_jack_pins),
	328	tegra_wm8903_hp_jack_pins);
	329	snd_soc_jack_add_gpios(&tegra_wm8903_hp_jack,
	330	1,
	331	&tegra_wm8903_hp_jack_gpio);
	332	}
f7d3e403	333
41b5f9b3	334	snd_soc_jack_new(codec, "Mic Jack", SND_JACK_MICROPHONE,
dc0a50af SW	335	&tegra_wm8903_mic_jack);
	336	snd_soc_jack_add_pins(&tegra_wm8903_mic_jack,
	337	ARRAY_SIZE(tegra_wm8903_mic_jack_pins),
	338	tegra_wm8903_mic_jack_pins);
	339	wm8903_mic_detect(codec, &tegra_wm8903_mic_jack, SND_JACK_MICROPHONE,
	340	0);
41b5f9b3 SW	341
	342	snd_soc_dapm_force_enable_pin(dapm, "Mic Bias");
	343
773b1d3d SW	344	/* FIXME: Calculate automatically based on DAPM routes? */
	345	if (!machine_is_harmony() && !machine_is_ventana())
	346	snd_soc_dapm_nc_pin(dapm, "IN1L");
	347	if (!machine_is_seaboard() && !machine_is_aebl())
	348	snd_soc_dapm_nc_pin(dapm, "IN1R");
	349	snd_soc_dapm_nc_pin(dapm, "IN2L");
	350	if (!machine_is_kaen())
	351	snd_soc_dapm_nc_pin(dapm, "IN2R");
0d6cdca7 SW	352	snd_soc_dapm_nc_pin(dapm, "IN3L");
0d6cdca7 SW	353	snd_soc_dapm_nc_pin(dapm, "IN3R");
773b1d3d SW	354
	355	if (machine_is_aebl()) {
	356	snd_soc_dapm_nc_pin(dapm, "LON");
	357	snd_soc_dapm_nc_pin(dapm, "RON");
	358	snd_soc_dapm_nc_pin(dapm, "ROP");
	359	snd_soc_dapm_nc_pin(dapm, "LOP");
	360	} else {
	361	snd_soc_dapm_nc_pin(dapm, "LINEOUTR");
	362	snd_soc_dapm_nc_pin(dapm, "LINEOUTL");
	363	}
0d6cdca7	364
41b5f9b3 SW	365	snd_soc_dapm_sync(dapm);
41b5f9b3 SW	366
62ffac4d SW	367	return 0;
	368	}
	369
dc0a50af	370	static struct snd_soc_dai_link tegra_wm8903_dai = {
a8bf1ba1 SW	371	.name = "WM8903",
a8bf1ba1 SW	372	.stream_name = "WM8903 PCM",
4b592c91	373	.codec_name = "wm8903.0-001a",
a8bf1ba1 SW	374	.platform_name = "tegra-pcm-audio",
	375	.cpu_dai_name = "tegra-i2s.0",
	376	.codec_dai_name = "wm8903-hifi",
dc0a50af SW	377	.init = tegra_wm8903_init,
dc0a50af SW	378	.ops = &tegra_wm8903_ops,
a8bf1ba1 SW	379	};
a8bf1ba1 SW	380
dc0a50af SW	381	static struct snd_soc_card snd_soc_tegra_wm8903 = {
	382	.name = "tegra-wm8903",
	383	.dai_link = &tegra_wm8903_dai,
a8bf1ba1 SW	384	.num_links = 1,
	385	};
	386
dc0a50af	387	static __devinit int tegra_wm8903_driver_probe(struct platform_device *pdev)
a8bf1ba1	388	{
dc0a50af SW	389	struct snd_soc_card *card = &snd_soc_tegra_wm8903;
dc0a50af SW	390	struct tegra_wm8903 *machine;
4651d556	391	struct tegra_wm8903_platform_data *pdata;
a8bf1ba1 SW	392	int ret;
a8bf1ba1 SW	393
6e267645 SW	394	pdata = pdev->dev.platform_data;
6e267645 SW	395	if (!pdata) {
773b1d3d	396	dev_err(&pdev->dev, "No platform data supplied\n");
6e267645 SW	397	return -EINVAL;
	398	}
	399
dc0a50af SW	400	machine = kzalloc(sizeof(struct tegra_wm8903), GFP_KERNEL);
	401	if (!machine) {
	402	dev_err(&pdev->dev, "Can't allocate tegra_wm8903 struct\n");
72de2b1a	403	return -ENOMEM;
a8bf1ba1 SW	404	}
a8bf1ba1 SW	405
dc0a50af	406	machine->pdata = pdata;
6e267645	407
dc0a50af	408	ret = tegra_asoc_utils_init(&machine->util_data, &pdev->dev);
72de2b1a	409	if (ret)
dc0a50af	410	goto err_free_machine;
a8bf1ba1	411
72de2b1a SW	412	card->dev = &pdev->dev;
72de2b1a SW	413	platform_set_drvdata(pdev, card);
dc0a50af	414	snd_soc_card_set_drvdata(card, machine);
a8bf1ba1	415
72de2b1a	416	ret = snd_soc_register_card(card);
a8bf1ba1	417	if (ret) {
72de2b1a	418	dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n",
a8bf1ba1	419	ret);
72de2b1a	420	goto err_clear_drvdata;
a8bf1ba1 SW	421	}
	422
	423	return 0;
	424
72de2b1a SW	425	err_clear_drvdata:
	426	snd_soc_card_set_drvdata(card, NULL);
	427	platform_set_drvdata(pdev, NULL);
	428	card->dev = NULL;
dc0a50af SW	429	tegra_asoc_utils_fini(&machine->util_data);
	430	err_free_machine:
	431	kfree(machine);
a8bf1ba1 SW	432	return ret;
a8bf1ba1 SW	433	}
a8bf1ba1	434
dc0a50af	435	static int __devexit tegra_wm8903_driver_remove(struct platform_device *pdev)
a8bf1ba1	436	{
72de2b1a	437	struct snd_soc_card *card = platform_get_drvdata(pdev);
dc0a50af SW	438	struct tegra_wm8903 *machine = snd_soc_card_get_drvdata(card);
dc0a50af SW	439	struct tegra_wm8903_platform_data *pdata = machine->pdata;
72de2b1a SW	440
	441	snd_soc_unregister_card(card);
	442
	443	snd_soc_card_set_drvdata(card, NULL);
	444	platform_set_drvdata(pdev, NULL);
	445	card->dev = NULL;
a8bf1ba1	446
dc0a50af	447	tegra_asoc_utils_fini(&machine->util_data);
72de2b1a	448
dc0a50af	449	if (machine->gpio_requested & GPIO_EXT_MIC_EN)
bf1b1328	450	gpio_free(pdata->gpio_ext_mic_en);
dc0a50af	451	if (machine->gpio_requested & GPIO_INT_MIC_EN)
bf1b1328	452	gpio_free(pdata->gpio_int_mic_en);
773b1d3d SW	453	if (machine->gpio_requested & GPIO_HP_MUTE)
773b1d3d SW	454	gpio_free(pdata->gpio_hp_mute);
dc0a50af	455	if (machine->gpio_requested & GPIO_SPKR_EN)
6e267645 SW	456	gpio_free(pdata->gpio_spkr_en);
6e267645 SW	457
dc0a50af	458	kfree(machine);
72de2b1a SW	459
	460	return 0;
	461	}
	462
dc0a50af	463	static struct platform_driver tegra_wm8903_driver = {
72de2b1a SW	464	.driver = {
	465	.name = DRV_NAME,
	466	.owner = THIS_MODULE,
deb2607e	467	.pm = &snd_soc_pm_ops,
72de2b1a	468	},
dc0a50af SW	469	.probe = tegra_wm8903_driver_probe,
dc0a50af SW	470	.remove = __devexit_p(tegra_wm8903_driver_remove),
72de2b1a SW	471	};
72de2b1a SW	472
dc0a50af	473	static int __init tegra_wm8903_modinit(void)
72de2b1a	474	{
dc0a50af	475	return platform_driver_register(&tegra_wm8903_driver);
72de2b1a	476	}
dc0a50af	477	module_init(tegra_wm8903_modinit);
72de2b1a	478
dc0a50af	479	static void __exit tegra_wm8903_modexit(void)
72de2b1a	480	{
dc0a50af	481	platform_driver_unregister(&tegra_wm8903_driver);
a8bf1ba1	482	}
dc0a50af	483	module_exit(tegra_wm8903_modexit);
a8bf1ba1 SW	484
a8bf1ba1 SW	485	MODULE_AUTHOR("Stephen Warren <swarren@nvidia.com>");
dc0a50af	486	MODULE_DESCRIPTION("Tegra+WM8903 machine ASoC driver");
a8bf1ba1	487	MODULE_LICENSE("GPL");
8eb34207	488	MODULE_ALIAS("platform:" DRV_NAME);