[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) 2010-2012 - 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 <linux/of_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_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)
#define GPIO_HP_DET     BIT(4)

struct tegra_wm8903 {
	struct tegra_wm8903_platform_data pdata;
	struct tegra_asoc_utils_data util_data;
	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;
	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);
	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;
	}

	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_dapm_context *dapm = w->dapm;
	struct snd_soc_card *card = dapm->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_dapm_context *dapm = w->dapm;
	struct snd_soc_card *card = dapm->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 Jack", NULL, "MICBIAS"},
	{"IN1L", NULL, "Mic Jack"},
};

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 Jack", NULL, "MICBIAS"},
	{"IN1R", NULL, "Mic Jack"},
};

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 Jack", NULL, "MICBIAS"},
	{"IN2R", NULL, "Mic Jack"},
};

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 Jack", NULL, "MICBIAS"},
	{"IN1R", NULL, "Mic Jack"},
};

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;
	struct device_node *np = card->dev->of_node;
	int ret;

	if (card->dev->platform_data) {
		memcpy(pdata, card->dev->platform_data, sizeof(*pdata));
	} else if (np) {
		/*
		 * This part must be in init() rather than probe() in order to
		 * guarantee that the WM8903 has been probed, and hence its
		 * GPIO controller registered, which is a pre-condition for
		 * of_get_named_gpio() to be able to map the phandles in the
		 * properties to the controller node. Given this, all
		 * pdata handling is in init() for consistency.
		 */
		pdata->gpio_spkr_en = of_get_named_gpio(np,
						"nvidia,spkr-en-gpios", 0);
		pdata->gpio_hp_mute = of_get_named_gpio(np,
						"nvidia,hp-mute-gpios", 0);
		pdata->gpio_hp_det = of_get_named_gpio(np,
						"nvidia,hp-det-gpios", 0);
		pdata->gpio_int_mic_en = of_get_named_gpio(np,
						"nvidia,int-mic-en-gpios", 0);
		pdata->gpio_ext_mic_en = of_get_named_gpio(np,
						"nvidia,ext-mic-en-gpios", 0);
	} else {
		dev_err(card->dev, "No platform data supplied\n");
		return -EINVAL;
	}

	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, 1);
	}

	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);
	}

	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);
		machine->gpio_requested |= GPIO_HP_DET;
	}

	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, "MICBIAS");

	return 0;
}

static struct snd_soc_dai_link tegra_wm8903_dai = {
	.name = "WM8903",
	.stream_name = "WM8903 PCM",
	.codec_name = "wm8903.0-001a",
	.platform_name = "tegra20-i2s.0",
	.cpu_dai_name = "tegra20-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",
	.owner = THIS_MODULE,
	.dai_link = &tegra_wm8903_dai,
	.num_links = 1,

	.controls = tegra_wm8903_controls,
	.num_controls = ARRAY_SIZE(tegra_wm8903_controls),
	.dapm_widgets = tegra_wm8903_dapm_widgets,
	.num_dapm_widgets = ARRAY_SIZE(tegra_wm8903_dapm_widgets),
	.fully_routed = true,
};

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

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

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

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

	if (pdev->dev.of_node) {
		ret = snd_soc_of_parse_card_name(card, "nvidia,model");
		if (ret)
			goto err;

		ret = snd_soc_of_parse_audio_routing(card,
						     "nvidia,audio-routing");
		if (ret)
			goto err;

		tegra_wm8903_dai.codec_name = NULL;
		tegra_wm8903_dai.codec_of_node = of_parse_phandle(
				pdev->dev.of_node, "nvidia,audio-codec", 0);
		if (!tegra_wm8903_dai.codec_of_node) {
			dev_err(&pdev->dev,
				"Property 'nvidia,audio-codec' missing or invalid\n");
			ret = -EINVAL;
			goto err;
		}

		tegra_wm8903_dai.cpu_dai_name = NULL;
		tegra_wm8903_dai.cpu_dai_of_node = of_parse_phandle(
				pdev->dev.of_node, "nvidia,i2s-controller", 0);
		if (!tegra_wm8903_dai.cpu_dai_of_node) {
			dev_err(&pdev->dev,
				"Property 'nvidia,i2s-controller' missing or invalid\n");
			ret = -EINVAL;
			goto err;
		}

		tegra_wm8903_dai.platform_name = NULL;
		tegra_wm8903_dai.platform_of_node =
					tegra_wm8903_dai.cpu_dai_of_node;
	} else {
		if (machine_is_harmony()) {
			card->dapm_routes = harmony_audio_map;
			card->num_dapm_routes = ARRAY_SIZE(harmony_audio_map);
		} else if (machine_is_seaboard()) {
			card->dapm_routes = seaboard_audio_map;
			card->num_dapm_routes = ARRAY_SIZE(seaboard_audio_map);
		} else if (machine_is_kaen()) {
			card->dapm_routes = kaen_audio_map;
			card->num_dapm_routes = ARRAY_SIZE(kaen_audio_map);
		} else {
			card->dapm_routes = aebl_audio_map;
			card->num_dapm_routes = ARRAY_SIZE(aebl_audio_map);
		}
	}

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

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

	return 0;

err_fini_utils:
	tegra_asoc_utils_fini(&machine->util_data);
err:
	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;

	if (machine->gpio_requested & GPIO_HP_DET)
		snd_soc_jack_free_gpios(&tegra_wm8903_hp_jack,
					1,
					&tegra_wm8903_hp_jack_gpio);
	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);
	machine->gpio_requested = 0;

	snd_soc_unregister_card(card);

	tegra_asoc_utils_fini(&machine->util_data);

	return 0;
}

static const struct of_device_id tegra_wm8903_of_match[] __devinitconst = {
	{ .compatible = "nvidia,tegra-audio-wm8903", },
	{},
};

static struct platform_driver tegra_wm8903_driver = {
	.driver = {
		.name = DRV_NAME,
		.owner = THIS_MODULE,
		.pm = &snd_soc_pm_ops,
		.of_match_table = tegra_wm8903_of_match,
	},
	.probe = tegra_wm8903_driver_probe,
	.remove = __devexit_p(tegra_wm8903_driver_remove),
};
module_platform_driver(tegra_wm8903_driver);

MODULE_AUTHOR("Stephen Warren <swarren@nvidia.com>");
MODULE_DESCRIPTION("Tegra+WM8903 machine ASoC driver");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:" DRV_NAME);
MODULE_DEVICE_TABLE(of, tegra_wm8903_of_match);
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>
518de86b	5	* Copyright (C) 2010-2012 - 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	36	#include <linux/gpio.h>
07cdf36d	37	#include <linux/of_gpio.h>
6e267645	38
4651d556	39	#include <mach/tegra_wm8903_pdata.h>
72de2b1a	40
a8bf1ba1	41	#include <sound/core.h>
f7d3e403	42	#include <sound/jack.h>
a8bf1ba1 SW	43	#include <sound/pcm.h>
	44	#include <sound/pcm_params.h>
	45	#include <sound/soc.h>
	46
41b5f9b3 SW	47	#include "../codecs/wm8903.h"
41b5f9b3 SW	48
a8bf1ba1 SW	49	#include "tegra_asoc_utils.h"
a8bf1ba1 SW	50
7b33af25	51	#define DRV_NAME "tegra-snd-wm8903"
a8bf1ba1	52
bf1b1328	53	#define GPIO_SPKR_EN BIT(0)
773b1d3d SW	54	#define GPIO_HP_MUTE BIT(1)
	55	#define GPIO_INT_MIC_EN BIT(2)
	56	#define GPIO_EXT_MIC_EN BIT(3)
29591ed4	57	#define GPIO_HP_DET BIT(4)
bf1b1328	58
dc0a50af	59	struct tegra_wm8903 {
07cdf36d	60	struct tegra_wm8903_platform_data pdata;
d64e57ce	61	struct tegra_asoc_utils_data util_data;
bf1b1328	62	int gpio_requested;
72de2b1a	63	};
a8bf1ba1	64
dc0a50af	65	static int tegra_wm8903_hw_params(struct snd_pcm_substream *substream,
a8bf1ba1 SW	66	struct snd_pcm_hw_params *params)
	67	{
	68	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	69	struct snd_soc_dai *codec_dai = rtd->codec_dai;
	70	struct snd_soc_dai *cpu_dai = rtd->cpu_dai;
c244d477 SW	71	struct snd_soc_codec *codec = rtd->codec;
c244d477 SW	72	struct snd_soc_card *card = codec->card;
dc0a50af	73	struct tegra_wm8903 *machine = snd_soc_card_get_drvdata(card);
07541396	74	int srate, mclk;
a8bf1ba1 SW	75	int err;
	76
	77	srate = params_rate(params);
	78	switch (srate) {
	79	case 64000:
	80	case 88200:
	81	case 96000:
	82	mclk = 128 * srate;
	83	break;
	84	default:
	85	mclk = 256 * srate;
	86	break;
	87	}
	88	/* FIXME: Codec only requires >= 3MHz if OSR==0 */
	89	while (mclk < 6000000)
	90	mclk *= 2;
	91
07541396	92	err = tegra_asoc_utils_set_rate(&machine->util_data, srate, mclk);
a8bf1ba1	93	if (err < 0) {
c244d477	94	dev_err(card->dev, "Can't configure clocks\n");
a8bf1ba1 SW	95	return err;
	96	}
	97
	98	err = snd_soc_dai_set_fmt(codec_dai,
	99	SND_SOC_DAIFMT_I2S \|
	100	SND_SOC_DAIFMT_NB_NF \|
	101	SND_SOC_DAIFMT_CBS_CFS);
	102	if (err < 0) {
c244d477	103	dev_err(card->dev, "codec_dai fmt not set\n");
a8bf1ba1 SW	104	return err;
	105	}
	106
	107	err = snd_soc_dai_set_fmt(cpu_dai,
	108	SND_SOC_DAIFMT_I2S \|
	109	SND_SOC_DAIFMT_NB_NF \|
	110	SND_SOC_DAIFMT_CBS_CFS);
	111	if (err < 0) {
c244d477	112	dev_err(card->dev, "cpu_dai fmt not set\n");
a8bf1ba1 SW	113	return err;
	114	}
	115
07541396 SW	116	err = snd_soc_dai_set_sysclk(codec_dai, 0, mclk,
	117	SND_SOC_CLOCK_IN);
	118	if (err < 0) {
	119	dev_err(card->dev, "codec_dai clock not set\n");
	120	return err;
a8bf1ba1 SW	121	}
	122
	123	return 0;
	124	}
	125
dc0a50af SW	126	static struct snd_soc_ops tegra_wm8903_ops = {
dc0a50af SW	127	.hw_params = tegra_wm8903_hw_params,
a8bf1ba1 SW	128	};
a8bf1ba1 SW	129
dc0a50af	130	static struct snd_soc_jack tegra_wm8903_hp_jack;
f7d3e403	131
dc0a50af	132	static struct snd_soc_jack_pin tegra_wm8903_hp_jack_pins[] = {
f7d3e403 SW	133	{
	134	.pin = "Headphone Jack",
	135	.mask = SND_JACK_HEADPHONE,
	136	},
	137	};
	138
3eb25f99 SW	139	static struct snd_soc_jack_gpio tegra_wm8903_hp_jack_gpio = {
	140	.name = "headphone detect",
	141	.report = SND_JACK_HEADPHONE,
	142	.debounce_time = 150,
	143	.invert = 1,
f7d3e403 SW	144	};
f7d3e403 SW	145
dc0a50af	146	static struct snd_soc_jack tegra_wm8903_mic_jack;
41b5f9b3	147
dc0a50af	148	static struct snd_soc_jack_pin tegra_wm8903_mic_jack_pins[] = {
41b5f9b3 SW	149	{
	150	.pin = "Mic Jack",
	151	.mask = SND_JACK_MICROPHONE,
	152	},
	153	};
	154
dc0a50af	155	static int tegra_wm8903_event_int_spk(struct snd_soc_dapm_widget *w,
6e267645 SW	156	struct snd_kcontrol *k, int event)
6e267645 SW	157	{
a32955db SW	158	struct snd_soc_dapm_context *dapm = w->dapm;
a32955db SW	159	struct snd_soc_card *card = dapm->card;
dc0a50af	160	struct tegra_wm8903 *machine = snd_soc_card_get_drvdata(card);
07cdf36d	161	struct tegra_wm8903_platform_data *pdata = &machine->pdata;
6e267645	162
773b1d3d SW	163	if (!(machine->gpio_requested & GPIO_SPKR_EN))
	164	return 0;
	165
6e267645	166	gpio_set_value_cansleep(pdata->gpio_spkr_en,
f9eabc3d	167	SND_SOC_DAPM_EVENT_ON(event));
6e267645 SW	168
	169	return 0;
	170	}
	171
773b1d3d SW	172	static int tegra_wm8903_event_hp(struct snd_soc_dapm_widget *w,
	173	struct snd_kcontrol *k, int event)
	174	{
a32955db SW	175	struct snd_soc_dapm_context *dapm = w->dapm;
a32955db SW	176	struct snd_soc_card *card = dapm->card;
773b1d3d	177	struct tegra_wm8903 *machine = snd_soc_card_get_drvdata(card);
07cdf36d	178	struct tegra_wm8903_platform_data *pdata = &machine->pdata;
773b1d3d SW	179
	180	if (!(machine->gpio_requested & GPIO_HP_MUTE))
	181	return 0;
	182
	183	gpio_set_value_cansleep(pdata->gpio_hp_mute,
	184	!SND_SOC_DAPM_EVENT_ON(event));
	185
	186	return 0;
	187	}
	188
dc0a50af SW	189	static const struct snd_soc_dapm_widget tegra_wm8903_dapm_widgets[] = {
dc0a50af SW	190	SND_SOC_DAPM_SPK("Int Spk", tegra_wm8903_event_int_spk),
773b1d3d	191	SND_SOC_DAPM_HP("Headphone Jack", tegra_wm8903_event_hp),
62ffac4d SW	192	SND_SOC_DAPM_MIC("Mic Jack", NULL),
	193	};
	194
	195	static const struct snd_soc_dapm_route harmony_audio_map[] = {
	196	{"Headphone Jack", NULL, "HPOUTR"},
	197	{"Headphone Jack", NULL, "HPOUTL"},
6e267645 SW	198	{"Int Spk", NULL, "ROP"},
	199	{"Int Spk", NULL, "RON"},
	200	{"Int Spk", NULL, "LOP"},
	201	{"Int Spk", NULL, "LON"},
5032dc34 MB	202	{"Mic Jack", NULL, "MICBIAS"},
5032dc34 MB	203	{"IN1L", NULL, "Mic Jack"},
62ffac4d SW	204	};
62ffac4d SW	205
773b1d3d SW	206	static const struct snd_soc_dapm_route seaboard_audio_map[] = {
	207	{"Headphone Jack", NULL, "HPOUTR"},
	208	{"Headphone Jack", NULL, "HPOUTL"},
	209	{"Int Spk", NULL, "ROP"},
	210	{"Int Spk", NULL, "RON"},
	211	{"Int Spk", NULL, "LOP"},
	212	{"Int Spk", NULL, "LON"},
5032dc34 MB	213	{"Mic Jack", NULL, "MICBIAS"},
5032dc34 MB	214	{"IN1R", NULL, "Mic Jack"},
773b1d3d SW	215	};
	216
	217	static const struct snd_soc_dapm_route kaen_audio_map[] = {
	218	{"Headphone Jack", NULL, "HPOUTR"},
	219	{"Headphone Jack", NULL, "HPOUTL"},
	220	{"Int Spk", NULL, "ROP"},
	221	{"Int Spk", NULL, "RON"},
	222	{"Int Spk", NULL, "LOP"},
	223	{"Int Spk", NULL, "LON"},
5032dc34 MB	224	{"Mic Jack", NULL, "MICBIAS"},
5032dc34 MB	225	{"IN2R", NULL, "Mic Jack"},
773b1d3d SW	226	};
	227
	228	static const struct snd_soc_dapm_route aebl_audio_map[] = {
	229	{"Headphone Jack", NULL, "HPOUTR"},
	230	{"Headphone Jack", NULL, "HPOUTL"},
	231	{"Int Spk", NULL, "LINEOUTR"},
	232	{"Int Spk", NULL, "LINEOUTL"},
5032dc34 MB	233	{"Mic Jack", NULL, "MICBIAS"},
5032dc34 MB	234	{"IN1R", NULL, "Mic Jack"},
773b1d3d SW	235	};
773b1d3d SW	236
dc0a50af	237	static const struct snd_kcontrol_new tegra_wm8903_controls[] = {
3d8bc390 SW	238	SOC_DAPM_PIN_SWITCH("Int Spk"),
	239	};
	240
dc0a50af	241	static int tegra_wm8903_init(struct snd_soc_pcm_runtime *rtd)
62ffac4d SW	242	{
	243	struct snd_soc_codec *codec = rtd->codec;
	244	struct snd_soc_dapm_context *dapm = &codec->dapm;
6e267645	245	struct snd_soc_card *card = codec->card;
dc0a50af	246	struct tegra_wm8903 *machine = snd_soc_card_get_drvdata(card);
07cdf36d SW	247	struct tegra_wm8903_platform_data *pdata = &machine->pdata;
07cdf36d SW	248	struct device_node *np = card->dev->of_node;
6e267645 SW	249	int ret;
6e267645 SW	250
07cdf36d SW	251	if (card->dev->platform_data) {
	252	memcpy(pdata, card->dev->platform_data, sizeof(*pdata));
	253	} else if (np) {
	254	/*
	255	* This part must be in init() rather than probe() in order to
	256	* guarantee that the WM8903 has been probed, and hence its
	257	* GPIO controller registered, which is a pre-condition for
	258	* of_get_named_gpio() to be able to map the phandles in the
	259	* properties to the controller node. Given this, all
	260	* pdata handling is in init() for consistency.
	261	*/
	262	pdata->gpio_spkr_en = of_get_named_gpio(np,
	263	"nvidia,spkr-en-gpios", 0);
	264	pdata->gpio_hp_mute = of_get_named_gpio(np,
	265	"nvidia,hp-mute-gpios", 0);
	266	pdata->gpio_hp_det = of_get_named_gpio(np,
	267	"nvidia,hp-det-gpios", 0);
	268	pdata->gpio_int_mic_en = of_get_named_gpio(np,
	269	"nvidia,int-mic-en-gpios", 0);
	270	pdata->gpio_ext_mic_en = of_get_named_gpio(np,
	271	"nvidia,ext-mic-en-gpios", 0);
	272	} else {
	273	dev_err(card->dev, "No platform data supplied\n");
	274	return -EINVAL;
	275	}
	276
773b1d3d SW	277	if (gpio_is_valid(pdata->gpio_spkr_en)) {
	278	ret = gpio_request(pdata->gpio_spkr_en, "spkr_en");
	279	if (ret) {
	280	dev_err(card->dev, "cannot get spkr_en gpio\n");
	281	return ret;
	282	}
	283	machine->gpio_requested \|= GPIO_SPKR_EN;
	284
	285	gpio_direction_output(pdata->gpio_spkr_en, 0);
6e267645	286	}
6e267645	287
773b1d3d SW	288	if (gpio_is_valid(pdata->gpio_hp_mute)) {
	289	ret = gpio_request(pdata->gpio_hp_mute, "hp_mute");
	290	if (ret) {
	291	dev_err(card->dev, "cannot get hp_mute gpio\n");
	292	return ret;
	293	}
	294	machine->gpio_requested \|= GPIO_HP_MUTE;
62ffac4d	295
a5fe6be4	296	gpio_direction_output(pdata->gpio_hp_mute, 1);
bf1b1328	297	}
bf1b1328	298
773b1d3d SW	299	if (gpio_is_valid(pdata->gpio_int_mic_en)) {
	300	ret = gpio_request(pdata->gpio_int_mic_en, "int_mic_en");
	301	if (ret) {
	302	dev_err(card->dev, "cannot get int_mic_en gpio\n");
	303	return ret;
	304	}
	305	machine->gpio_requested \|= GPIO_INT_MIC_EN;
bf1b1328	306
773b1d3d SW	307	/* Disable int mic; enable signal is active-high */
773b1d3d SW	308	gpio_direction_output(pdata->gpio_int_mic_en, 0);
bf1b1328	309	}
bf1b1328	310
773b1d3d SW	311	if (gpio_is_valid(pdata->gpio_ext_mic_en)) {
	312	ret = gpio_request(pdata->gpio_ext_mic_en, "ext_mic_en");
	313	if (ret) {
	314	dev_err(card->dev, "cannot get ext_mic_en gpio\n");
	315	return ret;
	316	}
	317	machine->gpio_requested \|= GPIO_EXT_MIC_EN;
	318
	319	/* Enable ext mic; enable signal is active-low */
	320	gpio_direction_output(pdata->gpio_ext_mic_en, 0);
	321	}
bf1b1328	322
773b1d3d SW	323	if (gpio_is_valid(pdata->gpio_hp_det)) {
	324	tegra_wm8903_hp_jack_gpio.gpio = pdata->gpio_hp_det;
	325	snd_soc_jack_new(codec, "Headphone Jack", SND_JACK_HEADPHONE,
	326	&tegra_wm8903_hp_jack);
	327	snd_soc_jack_add_pins(&tegra_wm8903_hp_jack,
	328	ARRAY_SIZE(tegra_wm8903_hp_jack_pins),
	329	tegra_wm8903_hp_jack_pins);
	330	snd_soc_jack_add_gpios(&tegra_wm8903_hp_jack,
	331	1,
	332	&tegra_wm8903_hp_jack_gpio);
29591ed4	333	machine->gpio_requested \|= GPIO_HP_DET;
773b1d3d	334	}
f7d3e403	335
41b5f9b3	336	snd_soc_jack_new(codec, "Mic Jack", SND_JACK_MICROPHONE,
dc0a50af SW	337	&tegra_wm8903_mic_jack);
	338	snd_soc_jack_add_pins(&tegra_wm8903_mic_jack,
	339	ARRAY_SIZE(tegra_wm8903_mic_jack_pins),
	340	tegra_wm8903_mic_jack_pins);
	341	wm8903_mic_detect(codec, &tegra_wm8903_mic_jack, SND_JACK_MICROPHONE,
	342	0);
41b5f9b3	343
5032dc34	344	snd_soc_dapm_force_enable_pin(dapm, "MICBIAS");
41b5f9b3	345
62ffac4d SW	346	return 0;
	347	}
	348
dc0a50af	349	static struct snd_soc_dai_link tegra_wm8903_dai = {
a8bf1ba1 SW	350	.name = "WM8903",
a8bf1ba1 SW	351	.stream_name = "WM8903 PCM",
4b592c91	352	.codec_name = "wm8903.0-001a",
896637ac SW	353	.platform_name = "tegra20-i2s.0",
896637ac SW	354	.cpu_dai_name = "tegra20-i2s.0",
a8bf1ba1	355	.codec_dai_name = "wm8903-hifi",
dc0a50af SW	356	.init = tegra_wm8903_init,
dc0a50af SW	357	.ops = &tegra_wm8903_ops,
a8bf1ba1 SW	358	};
a8bf1ba1 SW	359
dc0a50af SW	360	static struct snd_soc_card snd_soc_tegra_wm8903 = {
dc0a50af SW	361	.name = "tegra-wm8903",
b16eaf9f	362	.owner = THIS_MODULE,
dc0a50af	363	.dai_link = &tegra_wm8903_dai,
a8bf1ba1	364	.num_links = 1,
dea8b6ee SW	365
	366	.controls = tegra_wm8903_controls,
	367	.num_controls = ARRAY_SIZE(tegra_wm8903_controls),
	368	.dapm_widgets = tegra_wm8903_dapm_widgets,
	369	.num_dapm_widgets = ARRAY_SIZE(tegra_wm8903_dapm_widgets),
6e5fdba9	370	.fully_routed = true,
a8bf1ba1 SW	371	};
a8bf1ba1 SW	372
dc0a50af	373	static __devinit int tegra_wm8903_driver_probe(struct platform_device *pdev)
a8bf1ba1	374	{
dc0a50af SW	375	struct snd_soc_card *card = &snd_soc_tegra_wm8903;
dc0a50af SW	376	struct tegra_wm8903 *machine;
a8bf1ba1 SW	377	int ret;
a8bf1ba1 SW	378
07cdf36d	379	if (!pdev->dev.platform_data && !pdev->dev.of_node) {
773b1d3d	380	dev_err(&pdev->dev, "No platform data supplied\n");
6e267645 SW	381	return -EINVAL;
	382	}
	383
e4e4c18a SW	384	machine = devm_kzalloc(&pdev->dev, sizeof(struct tegra_wm8903),
e4e4c18a SW	385	GFP_KERNEL);
dc0a50af SW	386	if (!machine) {
dc0a50af SW	387	dev_err(&pdev->dev, "Can't allocate tegra_wm8903 struct\n");
e4e4c18a SW	388	ret = -ENOMEM;
e4e4c18a SW	389	goto err;
a8bf1ba1	390	}
a8bf1ba1	391
72de2b1a SW	392	card->dev = &pdev->dev;
72de2b1a SW	393	platform_set_drvdata(pdev, card);
dc0a50af	394	snd_soc_card_set_drvdata(card, machine);
a8bf1ba1	395
07cdf36d SW	396	if (pdev->dev.of_node) {
	397	ret = snd_soc_of_parse_card_name(card, "nvidia,model");
	398	if (ret)
	399	goto err;
	400
	401	ret = snd_soc_of_parse_audio_routing(card,
	402	"nvidia,audio-routing");
	403	if (ret)
	404	goto err;
	405
	406	tegra_wm8903_dai.codec_name = NULL;
	407	tegra_wm8903_dai.codec_of_node = of_parse_phandle(
	408	pdev->dev.of_node, "nvidia,audio-codec", 0);
	409	if (!tegra_wm8903_dai.codec_of_node) {
	410	dev_err(&pdev->dev,
	411	"Property 'nvidia,audio-codec' missing or invalid\n");
	412	ret = -EINVAL;
	413	goto err;
	414	}
	415
	416	tegra_wm8903_dai.cpu_dai_name = NULL;
	417	tegra_wm8903_dai.cpu_dai_of_node = of_parse_phandle(
	418	pdev->dev.of_node, "nvidia,i2s-controller", 0);
	419	if (!tegra_wm8903_dai.cpu_dai_of_node) {
	420	dev_err(&pdev->dev,
	421	"Property 'nvidia,i2s-controller' missing or invalid\n");
	422	ret = -EINVAL;
	423	goto err;
	424	}
	425
518de86b SW	426	tegra_wm8903_dai.platform_name = NULL;
	427	tegra_wm8903_dai.platform_of_node =
	428	tegra_wm8903_dai.cpu_dai_of_node;
dea8b6ee	429	} else {
07cdf36d SW	430	if (machine_is_harmony()) {
	431	card->dapm_routes = harmony_audio_map;
	432	card->num_dapm_routes = ARRAY_SIZE(harmony_audio_map);
	433	} else if (machine_is_seaboard()) {
	434	card->dapm_routes = seaboard_audio_map;
	435	card->num_dapm_routes = ARRAY_SIZE(seaboard_audio_map);
	436	} else if (machine_is_kaen()) {
	437	card->dapm_routes = kaen_audio_map;
	438	card->num_dapm_routes = ARRAY_SIZE(kaen_audio_map);
	439	} else {
	440	card->dapm_routes = aebl_audio_map;
	441	card->num_dapm_routes = ARRAY_SIZE(aebl_audio_map);
	442	}
dea8b6ee SW	443	}
dea8b6ee SW	444
07cdf36d SW	445	ret = tegra_asoc_utils_init(&machine->util_data, &pdev->dev);
07cdf36d SW	446	if (ret)
518de86b	447	goto err;
07cdf36d	448
72de2b1a	449	ret = snd_soc_register_card(card);
a8bf1ba1	450	if (ret) {
72de2b1a	451	dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n",
a8bf1ba1	452	ret);
acb8303f	453	goto err_fini_utils;
a8bf1ba1 SW	454	}
	455
	456	return 0;
	457
acb8303f	458	err_fini_utils:
dc0a50af	459	tegra_asoc_utils_fini(&machine->util_data);
e4e4c18a	460	err:
a8bf1ba1 SW	461	return ret;
a8bf1ba1 SW	462	}
a8bf1ba1	463
dc0a50af	464	static int __devexit tegra_wm8903_driver_remove(struct platform_device *pdev)
a8bf1ba1	465	{
72de2b1a	466	struct snd_soc_card *card = platform_get_drvdata(pdev);
dc0a50af	467	struct tegra_wm8903 *machine = snd_soc_card_get_drvdata(card);
07cdf36d	468	struct tegra_wm8903_platform_data *pdata = &machine->pdata;
72de2b1a	469
29591ed4 SW	470	if (machine->gpio_requested & GPIO_HP_DET)
	471	snd_soc_jack_free_gpios(&tegra_wm8903_hp_jack,
	472	1,
	473	&tegra_wm8903_hp_jack_gpio);
dc0a50af	474	if (machine->gpio_requested & GPIO_EXT_MIC_EN)
bf1b1328	475	gpio_free(pdata->gpio_ext_mic_en);
dc0a50af	476	if (machine->gpio_requested & GPIO_INT_MIC_EN)
bf1b1328	477	gpio_free(pdata->gpio_int_mic_en);
773b1d3d SW	478	if (machine->gpio_requested & GPIO_HP_MUTE)
773b1d3d SW	479	gpio_free(pdata->gpio_hp_mute);
dc0a50af	480	if (machine->gpio_requested & GPIO_SPKR_EN)
6e267645	481	gpio_free(pdata->gpio_spkr_en);
29591ed4 SW	482	machine->gpio_requested = 0;
	483
	484	snd_soc_unregister_card(card);
	485
	486	tegra_asoc_utils_fini(&machine->util_data);
6e267645	487
72de2b1a SW	488	return 0;
	489	}
	490
07cdf36d SW	491	static const struct of_device_id tegra_wm8903_of_match[] __devinitconst = {
	492	{ .compatible = "nvidia,tegra-audio-wm8903", },
	493	{},
	494	};
	495
dc0a50af	496	static struct platform_driver tegra_wm8903_driver = {
72de2b1a SW	497	.driver = {
	498	.name = DRV_NAME,
	499	.owner = THIS_MODULE,
deb2607e	500	.pm = &snd_soc_pm_ops,
07cdf36d	501	.of_match_table = tegra_wm8903_of_match,
72de2b1a	502	},
dc0a50af SW	503	.probe = tegra_wm8903_driver_probe,
dc0a50af SW	504	.remove = __devexit_p(tegra_wm8903_driver_remove),
72de2b1a	505	};
e4e4c18a	506	module_platform_driver(tegra_wm8903_driver);
a8bf1ba1 SW	507
a8bf1ba1 SW	508	MODULE_AUTHOR("Stephen Warren <swarren@nvidia.com>");
dc0a50af	509	MODULE_DESCRIPTION("Tegra+WM8903 machine ASoC driver");
a8bf1ba1	510	MODULE_LICENSE("GPL");
8eb34207	511	MODULE_ALIAS("platform:" DRV_NAME);
07cdf36d	512	MODULE_DEVICE_TABLE(of, tegra_wm8903_of_match);