[linux-2.6-block.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>

#include "../codecs/wm9712.h"
#include "pxa2xx-ac97.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 *jack_function[] = {"Headphone", "Mic", "Line", "Headset",
	"Off"};
static const char *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
1b49cb98 LG	1	/*
	2	* tosa.c -- SoC audio for Tosa
	3	*
	4	* Copyright 2005 Wolfson Microelectronics PLC.
	5	* Copyright 2005 Openedhand Ltd.
	6	*
d331124d	7	* Authors: Liam Girdwood <lrg@slimlogic.co.uk>
1b49cb98 LG	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	*
1b49cb98 LG	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>
4440cbd6	24	#include <linux/gpio.h>
1b49cb98	25
1b49cb98 LG	26	#include <sound/core.h>
	27	#include <sound/pcm.h>
	28	#include <sound/soc.h>
1b49cb98 LG	29
1b49cb98 LG	30	#include <asm/mach-types.h>
a09e64fb	31	#include <mach/tosa.h>
a09e64fb	32	#include <mach/audio.h>
1b49cb98 LG	33
1b49cb98 LG	34	#include "../codecs/wm9712.h"
cb4c048b	35	#include "pxa2xx-ac97.h"
1b49cb98	36
1b49cb98 LG	37	#define TOSA_HP 0
	38	#define TOSA_MIC_INT 1
	39	#define TOSA_HEADSET 2
	40	#define TOSA_HP_OFF 3
	41	#define TOSA_SPK_ON 0
	42	#define TOSA_SPK_OFF 1
	43
	44	static int tosa_jack_func;
	45	static int tosa_spk_func;
	46
079942ab	47	static void tosa_ext_control(struct snd_soc_dapm_context *dapm)
1b49cb98	48	{
ce6120cc	49
26e24ddc CK	50	snd_soc_dapm_mutex_lock(dapm);
26e24ddc CK	51
1b49cb98 LG	52	/* set up jack connection */
	53	switch (tosa_jack_func) {
	54	case TOSA_HP:
26e24ddc CK	55	snd_soc_dapm_disable_pin_unlocked(dapm, "Mic (Internal)");
	56	snd_soc_dapm_enable_pin_unlocked(dapm, "Headphone Jack");
	57	snd_soc_dapm_disable_pin_unlocked(dapm, "Headset Jack");
1b49cb98 LG	58	break;
1b49cb98 LG	59	case TOSA_MIC_INT:
26e24ddc CK	60	snd_soc_dapm_enable_pin_unlocked(dapm, "Mic (Internal)");
	61	snd_soc_dapm_disable_pin_unlocked(dapm, "Headphone Jack");
	62	snd_soc_dapm_disable_pin_unlocked(dapm, "Headset Jack");
1b49cb98 LG	63	break;
1b49cb98 LG	64	case TOSA_HEADSET:
26e24ddc CK	65	snd_soc_dapm_disable_pin_unlocked(dapm, "Mic (Internal)");
	66	snd_soc_dapm_disable_pin_unlocked(dapm, "Headphone Jack");
	67	snd_soc_dapm_enable_pin_unlocked(dapm, "Headset Jack");
1b49cb98 LG	68	break;
	69	}
	70
	71	if (tosa_spk_func == TOSA_SPK_ON)
26e24ddc	72	snd_soc_dapm_enable_pin_unlocked(dapm, "Speaker");
a5302181	73	else
26e24ddc CK	74	snd_soc_dapm_disable_pin_unlocked(dapm, "Speaker");
	75
	76	snd_soc_dapm_sync_unlocked(dapm);
1b49cb98	77
26e24ddc	78	snd_soc_dapm_mutex_unlock(dapm);
1b49cb98 LG	79	}
	80
	81	static int tosa_startup(struct snd_pcm_substream *substream)
	82	{
	83	struct snd_soc_pcm_runtime *rtd = substream->private_data;
1b49cb98 LG	84
1b49cb98 LG	85	/* check the jack status at stream startup */
079942ab	86	tosa_ext_control(&rtd->card->dapm);
71a29560	87
1b49cb98 LG	88	return 0;
	89	}
	90
	91	static struct snd_soc_ops tosa_ops = {
	92	.startup = tosa_startup,
	93	};
	94
	95	static int tosa_get_jack(struct snd_kcontrol *kcontrol,
	96	struct snd_ctl_elem_value *ucontrol)
	97	{
419396d5	98	ucontrol->value.enumerated.item[0] = tosa_jack_func;
1b49cb98 LG	99	return 0;
	100	}
	101
	102	static int tosa_set_jack(struct snd_kcontrol *kcontrol,
	103	struct snd_ctl_elem_value *ucontrol)
	104	{
079942ab	105	struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
1b49cb98	106
419396d5	107	if (tosa_jack_func == ucontrol->value.enumerated.item[0])
1b49cb98 LG	108	return 0;
1b49cb98 LG	109
419396d5	110	tosa_jack_func = ucontrol->value.enumerated.item[0];
079942ab	111	tosa_ext_control(&card->dapm);
1b49cb98 LG	112	return 1;
	113	}
	114
	115	static int tosa_get_spk(struct snd_kcontrol *kcontrol,
	116	struct snd_ctl_elem_value *ucontrol)
	117	{
419396d5	118	ucontrol->value.enumerated.item[0] = tosa_spk_func;
1b49cb98 LG	119	return 0;
	120	}
	121
	122	static int tosa_set_spk(struct snd_kcontrol *kcontrol,
	123	struct snd_ctl_elem_value *ucontrol)
	124	{
079942ab	125	struct snd_soc_card *card = snd_kcontrol_chip(kcontrol);
1b49cb98	126
419396d5	127	if (tosa_spk_func == ucontrol->value.enumerated.item[0])
1b49cb98 LG	128	return 0;
1b49cb98 LG	129
419396d5	130	tosa_spk_func = ucontrol->value.enumerated.item[0];
079942ab	131	tosa_ext_control(&card->dapm);
1b49cb98 LG	132	return 1;
	133	}
	134
	135	/* tosa dapm event handlers */
338c7ed0 JN	136	static int tosa_hp_event(struct snd_soc_dapm_widget *w,
338c7ed0 JN	137	struct snd_kcontrol *k, int event)
1b49cb98	138	{
4440cbd6	139	gpio_set_value(TOSA_GPIO_L_MUTE, SND_SOC_DAPM_EVENT_ON(event) ? 1 :0);
1b49cb98 LG	140	return 0;
	141	}
	142
	143	/* tosa machine dapm widgets */
	144	static const struct snd_soc_dapm_widget tosa_dapm_widgets[] = {
	145	SND_SOC_DAPM_HP("Headphone Jack", tosa_hp_event),
	146	SND_SOC_DAPM_HP("Headset Jack", NULL),
	147	SND_SOC_DAPM_MIC("Mic (Internal)", NULL),
	148	SND_SOC_DAPM_SPK("Speaker", NULL),
	149	};
	150
	151	/* tosa audio map */
76d39d0a	152	static const struct snd_soc_dapm_route audio_map[] = {
1b49cb98 LG	153
	154	/* headphone connected to HPOUTL, HPOUTR */
	155	{"Headphone Jack", NULL, "HPOUTL"},
	156	{"Headphone Jack", NULL, "HPOUTR"},
	157
	158	/* ext speaker connected to LOUT2, ROUT2 */
	159	{"Speaker", NULL, "LOUT2"},
	160	{"Speaker", NULL, "ROUT2"},
	161
	162	/* internal mic is connected to mic1, mic2 differential - with bias */
	163	{"MIC1", NULL, "Mic Bias"},
	164	{"MIC2", NULL, "Mic Bias"},
	165	{"Mic Bias", NULL, "Mic (Internal)"},
	166
	167	/* headset is connected to HPOUTR, and LINEINR with bias */
	168	{"Headset Jack", NULL, "HPOUTR"},
	169	{"LINEINR", NULL, "Mic Bias"},
	170	{"Mic Bias", NULL, "Headset Jack"},
1b49cb98 LG	171	};
	172
	173	static const char *jack_function[] = {"Headphone", "Mic", "Line", "Headset",
	174	"Off"};
	175	static const char *spk_function[] = {"On", "Off"};
	176	static const struct soc_enum tosa_enum[] = {
	177	SOC_ENUM_SINGLE_EXT(5, jack_function),
	178	SOC_ENUM_SINGLE_EXT(2, spk_function),
	179	};
	180
	181	static const struct snd_kcontrol_new tosa_controls[] = {
	182	SOC_ENUM_EXT("Jack Function", tosa_enum[0], tosa_get_jack,
	183	tosa_set_jack),
	184	SOC_ENUM_EXT("Speaker Function", tosa_enum[1], tosa_get_spk,
	185	tosa_set_spk),
	186	};
	187
1b49cb98 LG	188	static struct snd_soc_dai_link tosa_dai[] = {
	189	{
	190	.name = "AC97",
	191	.stream_name = "AC97 HiFi",
4bfc4e25	192	.cpu_dai_name = "pxa2xx-ac97",
f0fba2ad LG	193	.codec_dai_name = "wm9712-hifi",
	194	.platform_name = "pxa-pcm-audio",
	195	.codec_name = "wm9712-codec",
cb4c048b	196	.ops = &tosa_ops,
1b49cb98 LG	197	},
	198	{
	199	.name = "AC97 Aux",
	200	.stream_name = "AC97 Aux",
4bfc4e25	201	.cpu_dai_name = "pxa2xx-ac97-aux",
f0fba2ad LG	202	.codec_dai_name = "wm9712-aux",
	203	.platform_name = "pxa-pcm-audio",
	204	.codec_name = "wm9712-codec",
cb4c048b	205	.ops = &tosa_ops,
1b49cb98 LG	206	},
	207	};
	208
87506549	209	static struct snd_soc_card tosa = {
1b49cb98	210	.name = "Tosa",
561c6a17	211	.owner = THIS_MODULE,
1b49cb98 LG	212	.dai_link = tosa_dai,
1b49cb98 LG	213	.num_links = ARRAY_SIZE(tosa_dai),
079942ab LPC	214
	215	.controls = tosa_controls,
	216	.num_controls = ARRAY_SIZE(tosa_controls),
	217	.dapm_widgets = tosa_dapm_widgets,
	218	.num_dapm_widgets = ARRAY_SIZE(tosa_dapm_widgets),
	219	.dapm_routes = audio_map,
	220	.num_dapm_routes = ARRAY_SIZE(audio_map),
c02e723f	221	.fully_routed = true,
1b49cb98 LG	222	};
1b49cb98 LG	223
570f6fe1	224	static int tosa_probe(struct platform_device *pdev)
1b49cb98	225	{
f285b8c8	226	struct snd_soc_card *card = &tosa;
1b49cb98 LG	227	int ret;
1b49cb98 LG	228
f285b8c8 AL	229	ret = gpio_request_one(TOSA_GPIO_L_MUTE, GPIOF_OUT_INIT_LOW,
	230	"Headphone Jack");
	231	if (ret)
	232	return ret;
4440cbd6	233
f285b8c8	234	card->dev = &pdev->dev;
4440cbd6	235
2fd7076a	236	ret = devm_snd_soc_register_card(&pdev->dev, card);
f285b8c8 AL	237	if (ret) {
	238	dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
	239	ret);
	240	gpio_free(TOSA_GPIO_L_MUTE);
	241	}
1b49cb98 LG	242	return ret;
	243	}
	244
570f6fe1	245	static int tosa_remove(struct platform_device *pdev)
1b49cb98	246	{
f285b8c8	247	gpio_free(TOSA_GPIO_L_MUTE);
f285b8c8	248	return 0;
1b49cb98 LG	249	}
1b49cb98 LG	250
f285b8c8 AL	251	static struct platform_driver tosa_driver = {
	252	.driver = {
	253	.name = "tosa-audio",
7db1698f	254	.pm = &snd_soc_pm_ops,
f285b8c8 AL	255	},
f285b8c8 AL	256	.probe = tosa_probe,
570f6fe1	257	.remove = tosa_remove,
f285b8c8 AL	258	};
	259
	260	module_platform_driver(tosa_driver);
1b49cb98 LG	261
	262	/* Module information */
	263	MODULE_AUTHOR("Richard Purdie");
	264	MODULE_DESCRIPTION("ALSA SoC Tosa");
	265	MODULE_LICENSE("GPL");
f285b8c8	266	MODULE_ALIAS("platform:tosa-audio");