[linux-2.6-block.git] / sound / soc / pxa / e740_wm9705.c

// SPDX-License-Identifier: GPL-2.0-only
/*
 * e740-wm9705.c  --  SoC audio for e740
 *
 * Copyright 2007 (c) Ian Molton <spyro@f2s.com>
 */

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

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

#include <mach/audio.h>
#include <mach/eseries-gpio.h>

#include <asm/mach-types.h>

#define E740_AUDIO_OUT 1
#define E740_AUDIO_IN  2

static int e740_audio_power;

static void e740_sync_audio_power(int status)
{
	gpio_set_value(GPIO_E740_WM9705_nAVDD2, !status);
	gpio_set_value(GPIO_E740_AMP_ON, (status & E740_AUDIO_OUT) ? 1 : 0);
	gpio_set_value(GPIO_E740_MIC_ON, (status & E740_AUDIO_IN) ? 1 : 0);
}

static int e740_mic_amp_event(struct snd_soc_dapm_widget *w,
				struct snd_kcontrol *kcontrol, int event)
{
	if (event & SND_SOC_DAPM_PRE_PMU)
		e740_audio_power |= E740_AUDIO_IN;
	else if (event & SND_SOC_DAPM_POST_PMD)
		e740_audio_power &= ~E740_AUDIO_IN;

	e740_sync_audio_power(e740_audio_power);

	return 0;
}

static int e740_output_amp_event(struct snd_soc_dapm_widget *w,
				struct snd_kcontrol *kcontrol, int event)
{
	if (event & SND_SOC_DAPM_PRE_PMU)
		e740_audio_power |= E740_AUDIO_OUT;
	else if (event & SND_SOC_DAPM_POST_PMD)
		e740_audio_power &= ~E740_AUDIO_OUT;

	e740_sync_audio_power(e740_audio_power);

	return 0;
}

static const struct snd_soc_dapm_widget e740_dapm_widgets[] = {
	SND_SOC_DAPM_HP("Headphone Jack", NULL),
	SND_SOC_DAPM_SPK("Speaker", NULL),
	SND_SOC_DAPM_MIC("Mic (Internal)", NULL),
	SND_SOC_DAPM_PGA_E("Output Amp", SND_SOC_NOPM, 0, 0, NULL, 0,
			e740_output_amp_event, SND_SOC_DAPM_PRE_PMU |
			SND_SOC_DAPM_POST_PMD),
	SND_SOC_DAPM_PGA_E("Mic Amp", SND_SOC_NOPM, 0, 0, NULL, 0,
			e740_mic_amp_event, SND_SOC_DAPM_PRE_PMU |
			SND_SOC_DAPM_POST_PMD),
};

static const struct snd_soc_dapm_route audio_map[] = {
	{"Output Amp", NULL, "LOUT"},
	{"Output Amp", NULL, "ROUT"},
	{"Output Amp", NULL, "MONOOUT"},

	{"Speaker", NULL, "Output Amp"},
	{"Headphone Jack", NULL, "Output Amp"},

	{"MIC1", NULL, "Mic Amp"},
	{"Mic Amp", NULL, "Mic (Internal)"},
};

static struct snd_soc_dai_link e740_dai[] = {
	{
		.name = "AC97",
		.stream_name = "AC97 HiFi",
		.cpu_dai_name = "pxa2xx-ac97",
		.codec_dai_name = "wm9705-hifi",
		.platform_name = "pxa-pcm-audio",
		.codec_name = "wm9705-codec",
	},
	{
		.name = "AC97 Aux",
		.stream_name = "AC97 Aux",
		.cpu_dai_name = "pxa2xx-ac97-aux",
		.codec_dai_name = "wm9705-aux",
		.platform_name = "pxa-pcm-audio",
		.codec_name = "wm9705-codec",
	},
};

static struct snd_soc_card e740 = {
	.name = "Toshiba e740",
	.owner = THIS_MODULE,
	.dai_link = e740_dai,
	.num_links = ARRAY_SIZE(e740_dai),

	.dapm_widgets = e740_dapm_widgets,
	.num_dapm_widgets = ARRAY_SIZE(e740_dapm_widgets),
	.dapm_routes = audio_map,
	.num_dapm_routes = ARRAY_SIZE(audio_map),
	.fully_routed = true,
};

static struct gpio e740_audio_gpios[] = {
	{ GPIO_E740_MIC_ON, GPIOF_OUT_INIT_LOW, "Mic amp" },
	{ GPIO_E740_AMP_ON, GPIOF_OUT_INIT_LOW, "Output amp" },
	{ GPIO_E740_WM9705_nAVDD2, GPIOF_OUT_INIT_HIGH, "Audio power" },
};

static int e740_probe(struct platform_device *pdev)
{
	struct snd_soc_card *card = &e740;
	int ret;

	ret = gpio_request_array(e740_audio_gpios,
				 ARRAY_SIZE(e740_audio_gpios));
	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_array(e740_audio_gpios, ARRAY_SIZE(e740_audio_gpios));
	}
	return ret;
}

static int e740_remove(struct platform_device *pdev)
{
	gpio_free_array(e740_audio_gpios, ARRAY_SIZE(e740_audio_gpios));
	return 0;
}

static struct platform_driver e740_driver = {
	.driver		= {
		.name	= "e740-audio",
		.pm     = &snd_soc_pm_ops,
	},
	.probe		= e740_probe,
	.remove		= e740_remove,
};

module_platform_driver(e740_driver);

/* Module information */
MODULE_AUTHOR("Ian Molton <spyro@f2s.com>");
MODULE_DESCRIPTION("ALSA SoC driver for e740");
MODULE_LICENSE("GPL v2");
MODULE_ALIAS("platform:e740-audio");
Commit	Line	Data
a10e763b	1	// SPDX-License-Identifier: GPL-2.0-only
28796eaf IM	2	/*
	3	* e740-wm9705.c -- SoC audio for e740
	4	*
	5	* Copyright 2007 (c) Ian Molton <spyro@f2s.com>
28796eaf IM	6	*/
	7
	8	#include <linux/module.h>
	9	#include <linux/moduleparam.h>
	10	#include <linux/gpio.h>
	11
	12	#include <sound/core.h>
	13	#include <sound/pcm.h>
	14	#include <sound/soc.h>
28796eaf	15
28796eaf IM	16	#include <mach/audio.h>
	17	#include <mach/eseries-gpio.h>
	18
	19	#include <asm/mach-types.h>
	20
28796eaf IM	21	#define E740_AUDIO_OUT 1
	22	#define E740_AUDIO_IN 2
	23
	24	static int e740_audio_power;
	25
	26	static void e740_sync_audio_power(int status)
	27	{
	28	gpio_set_value(GPIO_E740_WM9705_nAVDD2, !status);
	29	gpio_set_value(GPIO_E740_AMP_ON, (status & E740_AUDIO_OUT) ? 1 : 0);
	30	gpio_set_value(GPIO_E740_MIC_ON, (status & E740_AUDIO_IN) ? 1 : 0);
	31	}
	32
	33	static int e740_mic_amp_event(struct snd_soc_dapm_widget *w,
	34	struct snd_kcontrol *kcontrol, int event)
	35	{
	36	if (event & SND_SOC_DAPM_PRE_PMU)
	37	e740_audio_power \|= E740_AUDIO_IN;
	38	else if (event & SND_SOC_DAPM_POST_PMD)
	39	e740_audio_power &= ~E740_AUDIO_IN;
	40
	41	e740_sync_audio_power(e740_audio_power);
	42
	43	return 0;
	44	}
	45
	46	static int e740_output_amp_event(struct snd_soc_dapm_widget *w,
	47	struct snd_kcontrol *kcontrol, int event)
	48	{
	49	if (event & SND_SOC_DAPM_PRE_PMU)
	50	e740_audio_power \|= E740_AUDIO_OUT;
	51	else if (event & SND_SOC_DAPM_POST_PMD)
	52	e740_audio_power &= ~E740_AUDIO_OUT;
	53
	54	e740_sync_audio_power(e740_audio_power);
	55
	56	return 0;
	57	}
	58
	59	static const struct snd_soc_dapm_widget e740_dapm_widgets[] = {
	60	SND_SOC_DAPM_HP("Headphone Jack", NULL),
	61	SND_SOC_DAPM_SPK("Speaker", NULL),
	62	SND_SOC_DAPM_MIC("Mic (Internal)", NULL),
	63	SND_SOC_DAPM_PGA_E("Output Amp", SND_SOC_NOPM, 0, 0, NULL, 0,
	64	e740_output_amp_event, SND_SOC_DAPM_PRE_PMU \|
	65	SND_SOC_DAPM_POST_PMD),
	66	SND_SOC_DAPM_PGA_E("Mic Amp", SND_SOC_NOPM, 0, 0, NULL, 0,
	67	e740_mic_amp_event, SND_SOC_DAPM_PRE_PMU \|
	68	SND_SOC_DAPM_POST_PMD),
	69	};
	70
	71	static const struct snd_soc_dapm_route audio_map[] = {
	72	{"Output Amp", NULL, "LOUT"},
	73	{"Output Amp", NULL, "ROUT"},
	74	{"Output Amp", NULL, "MONOOUT"},
	75
	76	{"Speaker", NULL, "Output Amp"},
	77	{"Headphone Jack", NULL, "Output Amp"},
	78
	79	{"MIC1", NULL, "Mic Amp"},
	80	{"Mic Amp", NULL, "Mic (Internal)"},
	81	};
	82
28796eaf IM	83	static struct snd_soc_dai_link e740_dai[] = {
	84	{
	85	.name = "AC97",
	86	.stream_name = "AC97 HiFi",
4bfc4e25	87	.cpu_dai_name = "pxa2xx-ac97",
f0fba2ad LG	88	.codec_dai_name = "wm9705-hifi",
	89	.platform_name = "pxa-pcm-audio",
	90	.codec_name = "wm9705-codec",
28796eaf IM	91	},
	92	{
	93	.name = "AC97 Aux",
	94	.stream_name = "AC97 Aux",
4bfc4e25	95	.cpu_dai_name = "pxa2xx-ac97-aux",
f0fba2ad LG	96	.codec_dai_name = "wm9705-aux",
	97	.platform_name = "pxa-pcm-audio",
	98	.codec_name = "wm9705-codec",
28796eaf IM	99	},
	100	};
	101
	102	static struct snd_soc_card e740 = {
	103	.name = "Toshiba e740",
561c6a17	104	.owner = THIS_MODULE,
28796eaf IM	105	.dai_link = e740_dai,
28796eaf IM	106	.num_links = ARRAY_SIZE(e740_dai),
23d8f225 LPC	107
	108	.dapm_widgets = e740_dapm_widgets,
	109	.num_dapm_widgets = ARRAY_SIZE(e740_dapm_widgets),
	110	.dapm_routes = audio_map,
	111	.num_dapm_routes = ARRAY_SIZE(audio_map),
dff6c964	112	.fully_routed = true,
28796eaf IM	113	};
28796eaf IM	114
62133829 AL	115	static struct gpio e740_audio_gpios[] = {
	116	{ GPIO_E740_MIC_ON, GPIOF_OUT_INIT_LOW, "Mic amp" },
	117	{ GPIO_E740_AMP_ON, GPIOF_OUT_INIT_LOW, "Output amp" },
	118	{ GPIO_E740_WM9705_nAVDD2, GPIOF_OUT_INIT_HIGH, "Audio power" },
	119	};
28796eaf	120
570f6fe1	121	static int e740_probe(struct platform_device *pdev)
28796eaf	122	{
62133829	123	struct snd_soc_card *card = &e740;
28796eaf IM	124	int ret;
28796eaf IM	125
62133829 AL	126	ret = gpio_request_array(e740_audio_gpios,
62133829 AL	127	ARRAY_SIZE(e740_audio_gpios));
28796eaf IM	128	if (ret)
	129	return ret;
	130
62133829	131	card->dev = &pdev->dev;
28796eaf	132
2fd7076a	133	ret = devm_snd_soc_register_card(&pdev->dev, card);
62133829 AL	134	if (ret) {
	135	dev_err(&pdev->dev, "snd_soc_register_card() failed: %d\n",
	136	ret);
	137	gpio_free_array(e740_audio_gpios, ARRAY_SIZE(e740_audio_gpios));
28796eaf	138	}
28796eaf IM	139	return ret;
	140	}
	141
570f6fe1	142	static int e740_remove(struct platform_device *pdev)
28796eaf	143	{
62133829	144	gpio_free_array(e740_audio_gpios, ARRAY_SIZE(e740_audio_gpios));
62133829	145	return 0;
28796eaf IM	146	}
28796eaf IM	147
62133829 AL	148	static struct platform_driver e740_driver = {
	149	.driver = {
	150	.name = "e740-audio",
7db1698f	151	.pm = &snd_soc_pm_ops,
62133829 AL	152	},
62133829 AL	153	.probe = e740_probe,
570f6fe1	154	.remove = e740_remove,
62133829 AL	155	};
	156
	157	module_platform_driver(e740_driver);
28796eaf IM	158
	159	/* Module information */
	160	MODULE_AUTHOR("Ian Molton <spyro@f2s.com>");
	161	MODULE_DESCRIPTION("ALSA SoC driver for e740");
	162	MODULE_LICENSE("GPL v2");
62133829	163	MODULE_ALIAS("platform:e740-audio");