[mirror_ubuntu-bionic-kernel.git] / sound / soc / pxa / tosa.c

/*
 * tosa.c  --  SoC audio for Tosa
 *
 * Copyright 2005 Wolfson Microelectronics PLC.
 * Copyright 2005 Openedhand Ltd.
 *
 * Authors: Liam Girdwood <lrg@slimlogic.co.uk>
 *          Richard Purdie <richard@openedhand.com>
 *
 *  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.
 *
 * GPIO's
 *  1 - Jack Insertion
 *  5 - Hookswitch (headset answer/hang up switch)
 *
 */

#include <linux/module.h>
#include <linux/moduleparam.h>
#include <linux/device.h>
#include <linux/gpio.h>

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

#include <asm/mach-types.h>
#include <mach/tosa.h>
#include <mach/audio.h>

#define TOSA_HP        0
#define TOSA_MIC_INT   1
#define TOSA_HEADSET   2
#define TOSA_HP_OFF    3
#define TOSA_SPK_ON    0
#define TOSA_SPK_OFF   1

static int tosa_jack_func;
static int tosa_spk_func;

static void tosa_ext_control(struct snd_soc_dapm_context *dapm)
{

	snd_soc_dapm_mutex_lock(dapm);

	/* set up jack connection */
	switch (tosa_jack_func) {
	case TOSA_HP:
		snd_soc_dapm_disable_pin_unlocked(dapm, "Mic (Internal)");
		snd_soc_dapm_enable_pin_unlocked(dapm, "Headphone Jack");
		snd_soc_dapm_disable_pin_unlocked(dapm, "Headset Jack");
		break;
	case TOSA_MIC_INT:
		snd_soc_dapm_enable_pin_unlocked(dapm, "Mic (Internal)");
		snd_soc_dapm_disable_pin_unlocked(dapm, "Headphone Jack");
		snd_soc_dapm_disable_pin_unlocked(dapm, "Headset Jack");
		break;
	case TOSA_HEADSET:
		snd_soc_dapm_disable_pin_unlocked(dapm, "Mic (Internal)");
		snd_soc_dapm_disable_pin_unlocked(dapm, "Headphone Jack");
		snd_soc_dapm_enable_pin_unlocked(dapm, "Headset Jack");
		break;
	}

	if (tosa_spk_func == TOSA_SPK_ON)
		snd_soc_dapm_enable_pin_unlocked(dapm, "Speaker");
	else
		snd_soc_dapm_disable_pin_unlocked(dapm, "Speaker");

	snd_soc_dapm_sync_unlocked(dapm);

	snd_soc_dapm_mutex_unlock(dapm);
}

static int tosa_startup(struct snd_pcm_substream *substream)
{
	struct snd_soc_pcm_runtime *rtd = substream->private_data;

	/* check the jack status at stream startup */
	tosa_ext_control(&rtd->card->dapm);

	return 0;
}

static struct snd_soc_ops tosa_ops = {
	.startup = tosa_startup,
};

static int tosa_get_jack(struct snd_kcontrol *kcontrol,
	struct snd_ctl_elem_value *ucontrol)
{
	ucontrol->value.enumerated.item[0] = tosa_jack_func;
	return 0;
}

static int tosa_set_jack(struct snd_kcontrol *kcontrol,
	struct snd_ctl_elem_value *ucontrol)
{
	struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);

	if (tosa_jack_func == ucontrol->value.enumerated.item[0])
		return 0;

	tosa_jack_func = ucontrol->value.enumerated.item[0];
	tosa_ext_control(&card->dapm);
	return 1;
}

static int tosa_get_spk(struct snd_kcontrol *kcontrol,
	struct snd_ctl_elem_value *ucontrol)
{
	ucontrol->value.enumerated.item[0] = tosa_spk_func;
	return 0;
}

static int tosa_set_spk(struct snd_kcontrol *kcontrol,
	struct snd_ctl_elem_value *ucontrol)
{
	struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);

	if (tosa_spk_func == ucontrol->value.enumerated.item[0])
		return 0;

	tosa_spk_func = ucontrol->value.enumerated.item[0];
	tosa_ext_control(&card->dapm);
	return 1;
}

/* tosa dapm event handlers */
static int tosa_hp_event(struct snd_soc_dapm_widget *w,
	struct snd_kcontrol *k, int event)
{
	gpio_set_value(TOSA_GPIO_L_MUTE, SND_SOC_DAPM_EVENT_ON(event) ? 1 :0);
	return 0;
}

/* tosa machine dapm widgets */
static const struct snd_soc_dapm_widget tosa_dapm_widgets[] = {
SND_SOC_DAPM_HP("Headphone Jack", tosa_hp_event),
SND_SOC_DAPM_HP("Headset Jack", NULL),
SND_SOC_DAPM_MIC("Mic (Internal)", NULL),
SND_SOC_DAPM_SPK("Speaker", NULL),
};

/* tosa audio map */
static const struct snd_soc_dapm_route audio_map[] = {

	/* headphone connected to HPOUTL, HPOUTR */
	{"Headphone Jack", NULL, "HPOUTL"},
	{"Headphone Jack", NULL, "HPOUTR"},

	/* ext speaker connected to LOUT2, ROUT2 */
	{"Speaker", NULL, "LOUT2"},
	{"Speaker", NULL, "ROUT2"},

	/* internal mic is connected to mic1, mic2 differential - with bias */
	{"MIC1", NULL, "Mic Bias"},
	{"MIC2", NULL, "Mic Bias"},
	{"Mic Bias", NULL, "Mic (Internal)"},

	/* headset is connected to HPOUTR, and LINEINR with bias */
	{"Headset Jack", NULL, "HPOUTR"},
	{"LINEINR", NULL, "Mic Bias"},
	{"Mic Bias", NULL, "Headset Jack"},
};

static const char * const jack_function[] = {"Headphone", "Mic", "Line",
	"Headset", "Off"};
static const char * const spk_function[] = {"On", "Off"};
static const struct soc_enum tosa_enum[] = {
	SOC_ENUM_SINGLE_EXT(5, jack_function),
	SOC_ENUM_SINGLE_EXT(2, spk_function),
};

static const struct snd_kcontrol_new tosa_controls[] = {
	SOC_ENUM_EXT("Jack Function", tosa_enum[0], tosa_get_jack,
		tosa_set_jack),
	SOC_ENUM_EXT("Speaker Function", tosa_enum[1], tosa_get_spk,
		tosa_set_spk),
};

static struct snd_soc_dai_link tosa_dai[] = {
{
	.name = "AC97",
	.stream_name = "AC97 HiFi",
	.cpu_dai_name = "pxa2xx-ac97",
	.codec_dai_name = "wm9712-hifi",
	.platform_name = "pxa-pcm-audio",
	.codec_name = "wm9712-codec",
	.ops = &tosa_ops,
},
{
	.name = "AC97 Aux",
	.stream_name = "AC97 Aux",
	.cpu_dai_name = "pxa2xx-ac97-aux",
	.codec_dai_name = "wm9712-aux",
	.platform_name = "pxa-pcm-audio",
	.codec_name = "wm9712-codec",
	.ops = &tosa_ops,
},
};

static struct snd_soc_card tosa = {
	.name = "Tosa",
	.owner = THIS_MODULE,
	.dai_link = tosa_dai,
	.num_links = ARRAY_SIZE(tosa_dai),

	.controls = tosa_controls,
	.num_controls = ARRAY_SIZE(tosa_controls),
	.dapm_widgets = tosa_dapm_widgets,
	.num_dapm_widgets = ARRAY_SIZE(tosa_dapm_widgets),
	.dapm_routes = audio_map,
	.num_dapm_routes = ARRAY_SIZE(audio_map),
	.fully_routed = true,
};

static int tosa_probe(struct platform_device *pdev)
{
	struct snd_soc_card *card = &tosa;
	int ret;

	ret = gpio_request_one(TOSA_GPIO_L_MUTE, GPIOF_OUT_INIT_LOW,
			       "Headphone Jack");
	if (ret)
		return ret;

	card->dev = &pdev->dev;

	ret = devm_snd_soc_register_card(&pdev->dev, card);
	if (ret) {
		dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
			ret);
		gpio_free(TOSA_GPIO_L_MUTE);
	}
	return ret;
}

static int tosa_remove(struct platform_device *pdev)
{
	gpio_free(TOSA_GPIO_L_MUTE);
	return 0;
}

static struct platform_driver tosa_driver = {
	.driver		= {
		.name	= "tosa-audio",
		.pm     = &snd_soc_pm_ops,
	},
	.probe		= tosa_probe,
	.remove		= tosa_remove,
};

module_platform_driver(tosa_driver);

/* Module information */
MODULE_AUTHOR("Richard Purdie");
MODULE_DESCRIPTION("ALSA SoC Tosa");
MODULE_LICENSE("GPL");
MODULE_ALIAS("platform:tosa-audio");
Commit	Line	Data
	1	/*
	2	* tosa.c -- SoC audio for Tosa
	3	*
	4	* Copyright 2005 Wolfson Microelectronics PLC.
	5	* Copyright 2005 Openedhand Ltd.
	6	*
	7	* Authors: Liam Girdwood <lrg@slimlogic.co.uk>
	8	* Richard Purdie <richard@openedhand.com>
	9	*
	10	* This program is free software; you can redistribute it and/or modify it
	11	* under the terms of the GNU General Public License as published by the
	12	* Free Software Foundation; either version 2 of the License, or (at your
	13	* option) any later version.
	14	*
	15	* GPIO's
	16	* 1 - Jack Insertion
	17	* 5 - Hookswitch (headset answer/hang up switch)
	18	*
	19	*/
	20
	21	#include <linux/module.h>
	22	#include <linux/moduleparam.h>
	23	#include <linux/device.h>
	24	#include <linux/gpio.h>
	25
	26	#include <sound/core.h>
	27	#include <sound/pcm.h>
	28	#include <sound/soc.h>
	29
	30	#include <asm/mach-types.h>
	31	#include <mach/tosa.h>
	32	#include <mach/audio.h>
	33
	34	#define TOSA_HP 0
	35	#define TOSA_MIC_INT 1
	36	#define TOSA_HEADSET 2
	37	#define TOSA_HP_OFF 3
	38	#define TOSA_SPK_ON 0
	39	#define TOSA_SPK_OFF 1
	40
	41	static int tosa_jack_func;
	42	static int tosa_spk_func;
	43
	44	static void tosa_ext_control(struct snd_soc_dapm_context *dapm)
	45	{
	46
	47	snd_soc_dapm_mutex_lock(dapm);
	48
	49	/* set up jack connection */
	50	switch (tosa_jack_func) {
	51	case TOSA_HP:
	52	snd_soc_dapm_disable_pin_unlocked(dapm, "Mic (Internal)");
	53	snd_soc_dapm_enable_pin_unlocked(dapm, "Headphone Jack");
	54	snd_soc_dapm_disable_pin_unlocked(dapm, "Headset Jack");
	55	break;
	56	case TOSA_MIC_INT:
	57	snd_soc_dapm_enable_pin_unlocked(dapm, "Mic (Internal)");
	58	snd_soc_dapm_disable_pin_unlocked(dapm, "Headphone Jack");
	59	snd_soc_dapm_disable_pin_unlocked(dapm, "Headset Jack");
	60	break;
	61	case TOSA_HEADSET:
	62	snd_soc_dapm_disable_pin_unlocked(dapm, "Mic (Internal)");
	63	snd_soc_dapm_disable_pin_unlocked(dapm, "Headphone Jack");
	64	snd_soc_dapm_enable_pin_unlocked(dapm, "Headset Jack");
	65	break;
	66	}
	67
	68	if (tosa_spk_func == TOSA_SPK_ON)
	69	snd_soc_dapm_enable_pin_unlocked(dapm, "Speaker");
	70	else
	71	snd_soc_dapm_disable_pin_unlocked(dapm, "Speaker");
	72
	73	snd_soc_dapm_sync_unlocked(dapm);
	74
	75	snd_soc_dapm_mutex_unlock(dapm);
	76	}
	77
	78	static int tosa_startup(struct snd_pcm_substream *substream)
	79	{
	80	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	81
	82	/* check the jack status at stream startup */
	83	tosa_ext_control(&rtd->card->dapm);
	84
	85	return 0;
	86	}
	87
	88	static struct snd_soc_ops tosa_ops = {
	89	.startup = tosa_startup,
	90	};
	91
	92	static int tosa_get_jack(struct snd_kcontrol *kcontrol,
	93	struct snd_ctl_elem_value *ucontrol)
	94	{
	95	ucontrol->value.enumerated.item[0] = tosa_jack_func;
	96	return 0;
	97	}
	98
	99	static int tosa_set_jack(struct snd_kcontrol *kcontrol,
	100	struct snd_ctl_elem_value *ucontrol)
	101	{
	102	struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
	103
	104	if (tosa_jack_func == ucontrol->value.enumerated.item[0])
	105	return 0;
	106
	107	tosa_jack_func = ucontrol->value.enumerated.item[0];
	108	tosa_ext_control(&card->dapm);
	109	return 1;
	110	}
	111
	112	static int tosa_get_spk(struct snd_kcontrol *kcontrol,
	113	struct snd_ctl_elem_value *ucontrol)
	114	{
	115	ucontrol->value.enumerated.item[0] = tosa_spk_func;
	116	return 0;
	117	}
	118
	119	static int tosa_set_spk(struct snd_kcontrol *kcontrol,
	120	struct snd_ctl_elem_value *ucontrol)
	121	{
	122	struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
	123
	124	if (tosa_spk_func == ucontrol->value.enumerated.item[0])
	125	return 0;
	126
	127	tosa_spk_func = ucontrol->value.enumerated.item[0];
	128	tosa_ext_control(&card->dapm);
	129	return 1;
	130	}
	131
	132	/* tosa dapm event handlers */
	133	static int tosa_hp_event(struct snd_soc_dapm_widget *w,
	134	struct snd_kcontrol *k, int event)
	135	{
	136	gpio_set_value(TOSA_GPIO_L_MUTE, SND_SOC_DAPM_EVENT_ON(event) ? 1 :0);
	137	return 0;
	138	}
	139
	140	/* tosa machine dapm widgets */
	141	static const struct snd_soc_dapm_widget tosa_dapm_widgets[] = {
	142	SND_SOC_DAPM_HP("Headphone Jack", tosa_hp_event),
	143	SND_SOC_DAPM_HP("Headset Jack", NULL),
	144	SND_SOC_DAPM_MIC("Mic (Internal)", NULL),
	145	SND_SOC_DAPM_SPK("Speaker", NULL),
	146	};
	147
	148	/* tosa audio map */
	149	static const struct snd_soc_dapm_route audio_map[] = {
	150
	151	/* headphone connected to HPOUTL, HPOUTR */
	152	{"Headphone Jack", NULL, "HPOUTL"},
	153	{"Headphone Jack", NULL, "HPOUTR"},
	154
	155	/* ext speaker connected to LOUT2, ROUT2 */
	156	{"Speaker", NULL, "LOUT2"},
	157	{"Speaker", NULL, "ROUT2"},
	158
	159	/* internal mic is connected to mic1, mic2 differential - with bias */
	160	{"MIC1", NULL, "Mic Bias"},
	161	{"MIC2", NULL, "Mic Bias"},
	162	{"Mic Bias", NULL, "Mic (Internal)"},
	163
	164	/* headset is connected to HPOUTR, and LINEINR with bias */
	165	{"Headset Jack", NULL, "HPOUTR"},
	166	{"LINEINR", NULL, "Mic Bias"},
	167	{"Mic Bias", NULL, "Headset Jack"},
	168	};
	169
	170	static const char * const jack_function[] = {"Headphone", "Mic", "Line",
	171	"Headset", "Off"};
	172	static const char * const spk_function[] = {"On", "Off"};
	173	static const struct soc_enum tosa_enum[] = {
	174	SOC_ENUM_SINGLE_EXT(5, jack_function),
	175	SOC_ENUM_SINGLE_EXT(2, spk_function),
	176	};
	177
	178	static const struct snd_kcontrol_new tosa_controls[] = {
	179	SOC_ENUM_EXT("Jack Function", tosa_enum[0], tosa_get_jack,
	180	tosa_set_jack),
	181	SOC_ENUM_EXT("Speaker Function", tosa_enum[1], tosa_get_spk,
	182	tosa_set_spk),
	183	};
	184
	185	static struct snd_soc_dai_link tosa_dai[] = {
	186	{
	187	.name = "AC97",
	188	.stream_name = "AC97 HiFi",
	189	.cpu_dai_name = "pxa2xx-ac97",
	190	.codec_dai_name = "wm9712-hifi",
	191	.platform_name = "pxa-pcm-audio",
	192	.codec_name = "wm9712-codec",
	193	.ops = &tosa_ops,
	194	},
	195	{
	196	.name = "AC97 Aux",
	197	.stream_name = "AC97 Aux",
	198	.cpu_dai_name = "pxa2xx-ac97-aux",
	199	.codec_dai_name = "wm9712-aux",
	200	.platform_name = "pxa-pcm-audio",
	201	.codec_name = "wm9712-codec",
	202	.ops = &tosa_ops,
	203	},
	204	};
	205
	206	static struct snd_soc_card tosa = {
	207	.name = "Tosa",
	208	.owner = THIS_MODULE,
	209	.dai_link = tosa_dai,
	210	.num_links = ARRAY_SIZE(tosa_dai),
	211
	212	.controls = tosa_controls,
	213	.num_controls = ARRAY_SIZE(tosa_controls),
	214	.dapm_widgets = tosa_dapm_widgets,
	215	.num_dapm_widgets = ARRAY_SIZE(tosa_dapm_widgets),
	216	.dapm_routes = audio_map,
	217	.num_dapm_routes = ARRAY_SIZE(audio_map),
	218	.fully_routed = true,
	219	};
	220
	221	static int tosa_probe(struct platform_device *pdev)
	222	{
	223	struct snd_soc_card *card = &tosa;
	224	int ret;
	225
	226	ret = gpio_request_one(TOSA_GPIO_L_MUTE, GPIOF_OUT_INIT_LOW,
	227	"Headphone Jack");
	228	if (ret)
	229	return ret;
	230
	231	card->dev = &pdev->dev;
	232
	233	ret = devm_snd_soc_register_card(&pdev->dev, card);
	234	if (ret) {
	235	dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
	236	ret);
	237	gpio_free(TOSA_GPIO_L_MUTE);
	238	}
	239	return ret;
	240	}
	241
	242	static int tosa_remove(struct platform_device *pdev)
	243	{
	244	gpio_free(TOSA_GPIO_L_MUTE);
	245	return 0;
	246	}
	247
	248	static struct platform_driver tosa_driver = {
	249	.driver = {
	250	.name = "tosa-audio",
	251	.pm = &snd_soc_pm_ops,
	252	},
	253	.probe = tosa_probe,
	254	.remove = tosa_remove,
	255	};
	256
	257	module_platform_driver(tosa_driver);
	258
	259	/* Module information */
	260	MODULE_AUTHOR("Richard Purdie");
	261	MODULE_DESCRIPTION("ALSA SoC Tosa");
	262	MODULE_LICENSE("GPL");
	263	MODULE_ALIAS("platform:tosa-audio");