[deliverable/linux.git] / sound / soc / tegra / tegra_max98090.c

/*
 * Tegra machine ASoC driver for boards using a MAX90809 CODEC.
 *
 * Copyright (c) 2013, NVIDIA CORPORATION.  All rights reserved.
 *
 * This program is free software; you can redistribute it and/or modify it
 * under the terms and conditions of the GNU General Public License,
 * version 2, as published by the Free Software Foundation.
 *
 * This program is distributed in the hope 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, see <http://www.gnu.org/licenses/>.
 *
 * Based on code copyright/by:
 *
 * Copyright (C) 2010-2012 - NVIDIA, Inc.
 * Copyright (C) 2011 The AC100 Kernel Team <ac100@lists.lauchpad.net>
 * (c) 2009, 2010 Nvidia Graphics Pvt. Ltd.
 * Copyright 2007 Wolfson Microelectronics PLC.
 */

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

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

#include "tegra_asoc_utils.h"

#define DRV_NAME "tegra-snd-max98090"

struct tegra_max98090 {
	struct tegra_asoc_utils_data util_data;
	int gpio_hp_det;
	int gpio_mic_det;
};

static int tegra_max98090_asoc_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_card *card = rtd->card;
	struct tegra_max98090 *machine = snd_soc_card_get_drvdata(card);
	int srate, mclk;
	int err;

	srate = params_rate(params);
	switch (srate) {
	case 8000:
	case 16000:
	case 24000:
	case 32000:
	case 48000:
	case 64000:
	case 96000:
		mclk = 12288000;
		break;
	case 11025:
	case 22050:
	case 44100:
	case 88200:
		mclk = 11289600;
		break;
	default:
		mclk = 12000000;
		break;
	}

	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_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_max98090_ops = {
	.hw_params = tegra_max98090_asoc_hw_params,
};

static struct snd_soc_jack tegra_max98090_hp_jack;

static struct snd_soc_jack_pin tegra_max98090_hp_jack_pins[] = {
	{
		.pin = "Headphones",
		.mask = SND_JACK_HEADPHONE,
	},
};

static struct snd_soc_jack_gpio tegra_max98090_hp_jack_gpio = {
	.name = "Headphone detection",
	.report = SND_JACK_HEADPHONE,
	.debounce_time = 150,
	.invert = 1,
};

static struct snd_soc_jack tegra_max98090_mic_jack;

static struct snd_soc_jack_pin tegra_max98090_mic_jack_pins[] = {
	{
		.pin = "Mic Jack",
		.mask = SND_JACK_MICROPHONE,
	},
};

static struct snd_soc_jack_gpio tegra_max98090_mic_jack_gpio = {
	.name = "Mic detection",
	.report = SND_JACK_MICROPHONE,
	.debounce_time = 150,
	.invert = 1,
};

static const struct snd_soc_dapm_widget tegra_max98090_dapm_widgets[] = {
	SND_SOC_DAPM_HP("Headphones", NULL),
	SND_SOC_DAPM_SPK("Speakers", NULL),
	SND_SOC_DAPM_MIC("Mic Jack", NULL),
};

static const struct snd_kcontrol_new tegra_max98090_controls[] = {
	SOC_DAPM_PIN_SWITCH("Speakers"),
};

static int tegra_max98090_asoc_init(struct snd_soc_pcm_runtime *rtd)
{
	struct snd_soc_dai *codec_dai = rtd->codec_dai;
	struct snd_soc_codec *codec = codec_dai->codec;
	struct tegra_max98090 *machine = snd_soc_card_get_drvdata(rtd->card);

	if (gpio_is_valid(machine->gpio_hp_det)) {
		snd_soc_jack_new(codec, "Headphones", SND_JACK_HEADPHONE,
				&tegra_max98090_hp_jack);
		snd_soc_jack_add_pins(&tegra_max98090_hp_jack,
				ARRAY_SIZE(tegra_max98090_hp_jack_pins),
				tegra_max98090_hp_jack_pins);

		tegra_max98090_hp_jack_gpio.gpio = machine->gpio_hp_det;
		snd_soc_jack_add_gpios(&tegra_max98090_hp_jack,
					1,
					&tegra_max98090_hp_jack_gpio);
	}

	if (gpio_is_valid(machine->gpio_mic_det)) {
		snd_soc_jack_new(codec, "Mic Jack", SND_JACK_MICROPHONE,
				 &tegra_max98090_mic_jack);
		snd_soc_jack_add_pins(&tegra_max98090_mic_jack,
				      ARRAY_SIZE(tegra_max98090_mic_jack_pins),
				      tegra_max98090_mic_jack_pins);

		tegra_max98090_mic_jack_gpio.gpio = machine->gpio_mic_det;
		snd_soc_jack_add_gpios(&tegra_max98090_mic_jack,
				       1,
				       &tegra_max98090_mic_jack_gpio);
	}

	return 0;
}

static int tegra_max98090_card_remove(struct snd_soc_card *card)
{
	struct tegra_max98090 *machine = snd_soc_card_get_drvdata(card);

	if (gpio_is_valid(machine->gpio_hp_det)) {
		snd_soc_jack_free_gpios(&tegra_max98090_hp_jack, 1,
					&tegra_max98090_hp_jack_gpio);
	}

	if (gpio_is_valid(machine->gpio_mic_det)) {
		snd_soc_jack_free_gpios(&tegra_max98090_mic_jack, 1,
					&tegra_max98090_mic_jack_gpio);
	}

	return 0;
}

static struct snd_soc_dai_link tegra_max98090_dai = {
	.name = "max98090",
	.stream_name = "max98090 PCM",
	.codec_dai_name = "HiFi",
	.init = tegra_max98090_asoc_init,
	.ops = &tegra_max98090_ops,
	.dai_fmt = SND_SOC_DAIFMT_I2S | SND_SOC_DAIFMT_NB_NF |
			SND_SOC_DAIFMT_CBS_CFS,
};

static struct snd_soc_card snd_soc_tegra_max98090 = {
	.name = "tegra-max98090",
	.owner = THIS_MODULE,
	.remove = tegra_max98090_card_remove,
	.dai_link = &tegra_max98090_dai,
	.num_links = 1,
	.controls = tegra_max98090_controls,
	.num_controls = ARRAY_SIZE(tegra_max98090_controls),
	.dapm_widgets = tegra_max98090_dapm_widgets,
	.num_dapm_widgets = ARRAY_SIZE(tegra_max98090_dapm_widgets),
	.fully_routed = true,
};

static int tegra_max98090_probe(struct platform_device *pdev)
{
	struct device_node *np = pdev->dev.of_node;
	struct snd_soc_card *card = &snd_soc_tegra_max98090;
	struct tegra_max98090 *machine;
	int ret;

	machine = devm_kzalloc(&pdev->dev,
			sizeof(struct tegra_max98090), GFP_KERNEL);
	if (!machine) {
		dev_err(&pdev->dev, "Can't allocate tegra_max98090\n");
		return -ENOMEM;
	}

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

	machine->gpio_hp_det = of_get_named_gpio(np, "nvidia,hp-det-gpios", 0);
	if (machine->gpio_hp_det == -EPROBE_DEFER)
		return -EPROBE_DEFER;

	machine->gpio_mic_det =
			of_get_named_gpio(np, "nvidia,mic-det-gpios", 0);
	if (machine->gpio_mic_det == -EPROBE_DEFER)
		return -EPROBE_DEFER;

	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_max98090_dai.codec_of_node = of_parse_phandle(np,
			"nvidia,audio-codec", 0);
	if (!tegra_max98090_dai.codec_of_node) {
		dev_err(&pdev->dev,
			"Property 'nvidia,audio-codec' missing or invalid\n");
		ret = -EINVAL;
		goto err;
	}

	tegra_max98090_dai.cpu_of_node = of_parse_phandle(np,
			"nvidia,i2s-controller", 0);
	if (!tegra_max98090_dai.cpu_of_node) {
		dev_err(&pdev->dev,
			"Property 'nvidia,i2s-controller' missing or invalid\n");
		ret = -EINVAL;
		goto err;
	}

	tegra_max98090_dai.platform_of_node = tegra_max98090_dai.cpu_of_node;

	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 tegra_max98090_remove(struct platform_device *pdev)
{
	struct snd_soc_card *card = platform_get_drvdata(pdev);
	struct tegra_max98090 *machine = snd_soc_card_get_drvdata(card);

	snd_soc_unregister_card(card);

	tegra_asoc_utils_fini(&machine->util_data);

	return 0;
}

static const struct of_device_id tegra_max98090_of_match[] = {
	{ .compatible = "nvidia,tegra-audio-max98090", },
	{},
};

static struct platform_driver tegra_max98090_driver = {
	.driver = {
		.name = DRV_NAME,
		.pm = &snd_soc_pm_ops,
		.of_match_table = tegra_max98090_of_match,
	},
	.probe = tegra_max98090_probe,
	.remove = tegra_max98090_remove,
};
module_platform_driver(tegra_max98090_driver);

MODULE_AUTHOR("Stephen Warren <swarren@nvidia.com>");
MODULE_DESCRIPTION("Tegra max98090 machine ASoC driver");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS("platform:" DRV_NAME);
MODULE_DEVICE_TABLE(of, tegra_max98090_of_match);
Commit	Line	Data
7637af2e SW	1	/*
	2	* Tegra machine ASoC driver for boards using a MAX90809 CODEC.
	3	*
	4	* Copyright (c) 2013, NVIDIA CORPORATION. All rights reserved.
	5	*
	6	* This program is free software; you can redistribute it and/or modify it
	7	* under the terms and conditions of the GNU General Public License,
	8	* version 2, as published by the Free Software Foundation.
	9	*
	10	* This program is distributed in the hope it will be useful, but WITHOUT
	11	* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
	12	* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
	13	* more details.
	14	*
	15	* You should have received a copy of the GNU General Public License
	16	* along with this program. If not, see <http://www.gnu.org/licenses/>.
	17	*
	18	* Based on code copyright/by:
	19	*
	20	* Copyright (C) 2010-2012 - NVIDIA, Inc.
	21	* Copyright (C) 2011 The AC100 Kernel Team <ac100@lists.lauchpad.net>
	22	* (c) 2009, 2010 Nvidia Graphics Pvt. Ltd.
	23	* Copyright 2007 Wolfson Microelectronics PLC.
	24	*/
	25
	26	#include <linux/module.h>
	27	#include <linux/platform_device.h>
	28	#include <linux/slab.h>
	29	#include <linux/gpio.h>
	30	#include <linux/of_gpio.h>
	31
	32	#include <sound/core.h>
	33	#include <sound/jack.h>
	34	#include <sound/pcm.h>
	35	#include <sound/pcm_params.h>
	36	#include <sound/soc.h>
	37
	38	#include "tegra_asoc_utils.h"
	39
	40	#define DRV_NAME "tegra-snd-max98090"
	41
	42	struct tegra_max98090 {
	43	struct tegra_asoc_utils_data util_data;
	44	int gpio_hp_det;
9766a1cf	45	int gpio_mic_det;
7637af2e SW	46	};
	47
	48	static int tegra_max98090_asoc_hw_params(struct snd_pcm_substream *substream,
	49	struct snd_pcm_hw_params *params)
	50	{
	51	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	52	struct snd_soc_dai *codec_dai = rtd->codec_dai;
093c4e5c	53	struct snd_soc_card *card = rtd->card;
7637af2e SW	54	struct tegra_max98090 *machine = snd_soc_card_get_drvdata(card);
	55	int srate, mclk;
	56	int err;
	57
	58	srate = params_rate(params);
	59	switch (srate) {
	60	case 8000:
	61	case 16000:
	62	case 24000:
	63	case 32000:
	64	case 48000:
	65	case 64000:
	66	case 96000:
	67	mclk = 12288000;
	68	break;
	69	case 11025:
	70	case 22050:
	71	case 44100:
	72	case 88200:
	73	mclk = 11289600;
	74	break;
	75	default:
	76	mclk = 12000000;
	77	break;
	78	}
	79
	80	err = tegra_asoc_utils_set_rate(&machine->util_data, srate, mclk);
	81	if (err < 0) {
	82	dev_err(card->dev, "Can't configure clocks\n");
	83	return err;
	84	}
	85
	86	err = snd_soc_dai_set_sysclk(codec_dai, 0, mclk,
	87	SND_SOC_CLOCK_IN);
	88	if (err < 0) {
	89	dev_err(card->dev, "codec_dai clock not set\n");
	90	return err;
	91	}
	92
	93	return 0;
	94	}
	95
	96	static struct snd_soc_ops tegra_max98090_ops = {
	97	.hw_params = tegra_max98090_asoc_hw_params,
	98	};
	99
	100	static struct snd_soc_jack tegra_max98090_hp_jack;
	101
	102	static struct snd_soc_jack_pin tegra_max98090_hp_jack_pins[] = {
	103	{
	104	.pin = "Headphones",
	105	.mask = SND_JACK_HEADPHONE,
	106	},
	107	};
	108
	109	static struct snd_soc_jack_gpio tegra_max98090_hp_jack_gpio = {
	110	.name = "Headphone detection",
	111	.report = SND_JACK_HEADPHONE,
	112	.debounce_time = 150,
	113	.invert = 1,
	114	};
	115
9766a1cf DR	116	static struct snd_soc_jack tegra_max98090_mic_jack;
	117
	118	static struct snd_soc_jack_pin tegra_max98090_mic_jack_pins[] = {
	119	{
	120	.pin = "Mic Jack",
	121	.mask = SND_JACK_MICROPHONE,
	122	},
	123	};
	124
	125	static struct snd_soc_jack_gpio tegra_max98090_mic_jack_gpio = {
	126	.name = "Mic detection",
	127	.report = SND_JACK_MICROPHONE,
	128	.debounce_time = 150,
	129	.invert = 1,
	130	};
	131
7637af2e SW	132	static const struct snd_soc_dapm_widget tegra_max98090_dapm_widgets[] = {
	133	SND_SOC_DAPM_HP("Headphones", NULL),
	134	SND_SOC_DAPM_SPK("Speakers", NULL),
	135	SND_SOC_DAPM_MIC("Mic Jack", NULL),
	136	};
	137
	138	static const struct snd_kcontrol_new tegra_max98090_controls[] = {
	139	SOC_DAPM_PIN_SWITCH("Speakers"),
	140	};
	141
	142	static int tegra_max98090_asoc_init(struct snd_soc_pcm_runtime *rtd)
	143	{
	144	struct snd_soc_dai *codec_dai = rtd->codec_dai;
	145	struct snd_soc_codec *codec = codec_dai->codec;
093c4e5c	146	struct tegra_max98090 *machine = snd_soc_card_get_drvdata(rtd->card);
7637af2e SW	147
	148	if (gpio_is_valid(machine->gpio_hp_det)) {
	149	snd_soc_jack_new(codec, "Headphones", SND_JACK_HEADPHONE,
	150	&tegra_max98090_hp_jack);
	151	snd_soc_jack_add_pins(&tegra_max98090_hp_jack,
	152	ARRAY_SIZE(tegra_max98090_hp_jack_pins),
	153	tegra_max98090_hp_jack_pins);
	154
	155	tegra_max98090_hp_jack_gpio.gpio = machine->gpio_hp_det;
	156	snd_soc_jack_add_gpios(&tegra_max98090_hp_jack,
	157	1,
	158	&tegra_max98090_hp_jack_gpio);
	159	}
	160
9766a1cf DR	161	if (gpio_is_valid(machine->gpio_mic_det)) {
	162	snd_soc_jack_new(codec, "Mic Jack", SND_JACK_MICROPHONE,
	163	&tegra_max98090_mic_jack);
	164	snd_soc_jack_add_pins(&tegra_max98090_mic_jack,
	165	ARRAY_SIZE(tegra_max98090_mic_jack_pins),
	166	tegra_max98090_mic_jack_pins);
	167
	168	tegra_max98090_mic_jack_gpio.gpio = machine->gpio_mic_det;
	169	snd_soc_jack_add_gpios(&tegra_max98090_mic_jack,
	170	1,
	171	&tegra_max98090_mic_jack_gpio);
	172	}
	173
7637af2e SW	174	return 0;
	175	}
	176
fb6b8e71 SW	177	static int tegra_max98090_card_remove(struct snd_soc_card *card)
	178	{
	179	struct tegra_max98090 *machine = snd_soc_card_get_drvdata(card);
	180
	181	if (gpio_is_valid(machine->gpio_hp_det)) {
	182	snd_soc_jack_free_gpios(&tegra_max98090_hp_jack, 1,
	183	&tegra_max98090_hp_jack_gpio);
	184	}
	185
9766a1cf DR	186	if (gpio_is_valid(machine->gpio_mic_det)) {
	187	snd_soc_jack_free_gpios(&tegra_max98090_mic_jack, 1,
	188	&tegra_max98090_mic_jack_gpio);
	189	}
	190
fb6b8e71 SW	191	return 0;
	192	}
	193
7637af2e SW	194	static struct snd_soc_dai_link tegra_max98090_dai = {
	195	.name = "max98090",
	196	.stream_name = "max98090 PCM",
	197	.codec_dai_name = "HiFi",
	198	.init = tegra_max98090_asoc_init,
	199	.ops = &tegra_max98090_ops,
	200	.dai_fmt = SND_SOC_DAIFMT_I2S \| SND_SOC_DAIFMT_NB_NF \|
	201	SND_SOC_DAIFMT_CBS_CFS,
	202	};
	203
	204	static struct snd_soc_card snd_soc_tegra_max98090 = {
	205	.name = "tegra-max98090",
	206	.owner = THIS_MODULE,
fb6b8e71	207	.remove = tegra_max98090_card_remove,
7637af2e SW	208	.dai_link = &tegra_max98090_dai,
	209	.num_links = 1,
	210	.controls = tegra_max98090_controls,
	211	.num_controls = ARRAY_SIZE(tegra_max98090_controls),
	212	.dapm_widgets = tegra_max98090_dapm_widgets,
	213	.num_dapm_widgets = ARRAY_SIZE(tegra_max98090_dapm_widgets),
	214	.fully_routed = true,
	215	};
	216
	217	static int tegra_max98090_probe(struct platform_device *pdev)
	218	{
	219	struct device_node *np = pdev->dev.of_node;
	220	struct snd_soc_card *card = &snd_soc_tegra_max98090;
	221	struct tegra_max98090 *machine;
	222	int ret;
	223
	224	machine = devm_kzalloc(&pdev->dev,
	225	sizeof(struct tegra_max98090), GFP_KERNEL);
	226	if (!machine) {
	227	dev_err(&pdev->dev, "Can't allocate tegra_max98090\n");
	228	return -ENOMEM;
	229	}
	230
	231	card->dev = &pdev->dev;
	232	platform_set_drvdata(pdev, card);
	233	snd_soc_card_set_drvdata(card, machine);
	234
	235	machine->gpio_hp_det = of_get_named_gpio(np, "nvidia,hp-det-gpios", 0);
	236	if (machine->gpio_hp_det == -EPROBE_DEFER)
	237	return -EPROBE_DEFER;
	238
9766a1cf DR	239	machine->gpio_mic_det =
	240	of_get_named_gpio(np, "nvidia,mic-det-gpios", 0);
	241	if (machine->gpio_mic_det == -EPROBE_DEFER)
	242	return -EPROBE_DEFER;
	243
7637af2e SW	244	ret = snd_soc_of_parse_card_name(card, "nvidia,model");
	245	if (ret)
	246	goto err;
	247
	248	ret = snd_soc_of_parse_audio_routing(card, "nvidia,audio-routing");
	249	if (ret)
	250	goto err;
	251
	252	tegra_max98090_dai.codec_of_node = of_parse_phandle(np,
	253	"nvidia,audio-codec", 0);
	254	if (!tegra_max98090_dai.codec_of_node) {
	255	dev_err(&pdev->dev,
	256	"Property 'nvidia,audio-codec' missing or invalid\n");
	257	ret = -EINVAL;
	258	goto err;
	259	}
	260
	261	tegra_max98090_dai.cpu_of_node = of_parse_phandle(np,
	262	"nvidia,i2s-controller", 0);
	263	if (!tegra_max98090_dai.cpu_of_node) {
	264	dev_err(&pdev->dev,
	265	"Property 'nvidia,i2s-controller' missing or invalid\n");
	266	ret = -EINVAL;
	267	goto err;
	268	}
	269
	270	tegra_max98090_dai.platform_of_node = tegra_max98090_dai.cpu_of_node;
	271
	272	ret = tegra_asoc_utils_init(&machine->util_data, &pdev->dev);
	273	if (ret)
	274	goto err;
	275
	276	ret = snd_soc_register_card(card);
	277	if (ret) {
	278	dev_err(&pdev->dev, "snd_soc_register_card failed (%d)\n",
	279	ret);
	280	goto err_fini_utils;
	281	}
	282
	283	return 0;
	284
	285	err_fini_utils:
	286	tegra_asoc_utils_fini(&machine->util_data);
	287	err:
	288	return ret;
	289	}
	290
	291	static int tegra_max98090_remove(struct platform_device *pdev)
	292	{
	293	struct snd_soc_card *card = platform_get_drvdata(pdev);
	294	struct tegra_max98090 *machine = snd_soc_card_get_drvdata(card);
	295
7637af2e SW	296	snd_soc_unregister_card(card);
	297
	298	tegra_asoc_utils_fini(&machine->util_data);
	299
	300	return 0;
	301	}
	302
	303	static const struct of_device_id tegra_max98090_of_match[] = {
	304	{ .compatible = "nvidia,tegra-audio-max98090", },
	305	{},
	306	};
	307
	308	static struct platform_driver tegra_max98090_driver = {
	309	.driver = {
	310	.name = DRV_NAME,
7637af2e SW	311	.pm = &snd_soc_pm_ops,
	312	.of_match_table = tegra_max98090_of_match,
	313	},
	314	.probe = tegra_max98090_probe,
	315	.remove = tegra_max98090_remove,
	316	};
	317	module_platform_driver(tegra_max98090_driver);
	318
	319	MODULE_AUTHOR("Stephen Warren <swarren@nvidia.com>");
	320	MODULE_DESCRIPTION("Tegra max98090 machine ASoC driver");
	321	MODULE_LICENSE("GPL v2");
	322	MODULE_ALIAS("platform:" DRV_NAME);
	323	MODULE_DEVICE_TABLE(of, tegra_max98090_of_match);