[deliverable/linux.git] / sound / soc / codecs / ad1980.c

/*
 * ad1980.c  --  ALSA Soc AD1980 codec support
 *
 * Copyright:	Analog Device Inc.
 * Author:	Roy Huang <roy.huang@analog.com>
 * 		Cliff Cai <cliff.cai@analog.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.
 */

/*
 * WARNING:
 *
 * Because Analog Devices Inc. discontinued the ad1980 sound chip since
 * Sep. 2009, this ad1980 driver is not maintained, tested and supported
 * by ADI now.
 */

#include <linux/init.h>
#include <linux/slab.h>
#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/device.h>
#include <linux/regmap.h>
#include <sound/core.h>
#include <sound/pcm.h>
#include <sound/ac97_codec.h>
#include <sound/initval.h>
#include <sound/soc.h>

static const struct reg_default ad1980_reg_defaults[] = {
	{ 0x02, 0x8000 },
	{ 0x04, 0x8000 },
	{ 0x06, 0x8000 },
	{ 0x0c, 0x8008 },
	{ 0x0e, 0x8008 },
	{ 0x10, 0x8808 },
	{ 0x12, 0x8808 },
	{ 0x16, 0x8808 },
	{ 0x18, 0x8808 },
	{ 0x1a, 0x0000 },
	{ 0x1c, 0x8000 },
	{ 0x20, 0x0000 },
	{ 0x28, 0x03c7 },
	{ 0x2c, 0xbb80 },
	{ 0x2e, 0xbb80 },
	{ 0x30, 0xbb80 },
	{ 0x32, 0xbb80 },
	{ 0x36, 0x8080 },
	{ 0x38, 0x8080 },
	{ 0x3a, 0x2000 },
	{ 0x60, 0x0000 },
	{ 0x62, 0x0000 },
	{ 0x72, 0x0000 },
	{ 0x74, 0x1001 },
	{ 0x76, 0x0000 },
};

static bool ad1980_readable_reg(struct device *dev, unsigned int reg)
{
	switch (reg) {
	case AC97_RESET ... AC97_MASTER_MONO:
	case AC97_PHONE ... AC97_CD:
	case AC97_AUX ... AC97_GENERAL_PURPOSE:
	case AC97_POWERDOWN ... AC97_PCM_LR_ADC_RATE:
	case AC97_SPDIF:
	case AC97_CODEC_CLASS_REV:
	case AC97_PCI_SVID:
	case AC97_AD_CODEC_CFG:
	case AC97_AD_JACK_SPDIF:
	case AC97_AD_SERIAL_CFG:
	case AC97_VENDOR_ID1:
	case AC97_VENDOR_ID2:
		return true;
	default:
		return false;
	}
}

static bool ad1980_writeable_reg(struct device *dev, unsigned int reg)
{
	switch (reg) {
	case AC97_VENDOR_ID1:
	case AC97_VENDOR_ID2:
		return false;
	default:
		return ad1980_readable_reg(dev, reg);
	}
}

static const struct regmap_config ad1980_regmap_config = {
	.reg_bits = 16,
	.reg_stride = 2,
	.val_bits = 16,
	.max_register = 0x7e,
	.cache_type = REGCACHE_RBTREE,

	.volatile_reg = regmap_ac97_default_volatile,
	.readable_reg = ad1980_readable_reg,
	.writeable_reg = ad1980_writeable_reg,

	.reg_defaults = ad1980_reg_defaults,
	.num_reg_defaults = ARRAY_SIZE(ad1980_reg_defaults),
};

static const char *ad1980_rec_sel[] = {"Mic", "CD", "NC", "AUX", "Line",
		"Stereo Mix", "Mono Mix", "Phone"};

static SOC_ENUM_DOUBLE_DECL(ad1980_cap_src,
			    AC97_REC_SEL, 8, 0, ad1980_rec_sel);

static const struct snd_kcontrol_new ad1980_snd_ac97_controls[] = {
SOC_DOUBLE("Master Playback Volume", AC97_MASTER, 8, 0, 31, 1),
SOC_SINGLE("Master Playback Switch", AC97_MASTER, 15, 1, 1),

SOC_DOUBLE("Headphone Playback Volume", AC97_HEADPHONE, 8, 0, 31, 1),
SOC_SINGLE("Headphone Playback Switch", AC97_HEADPHONE, 15, 1, 1),

SOC_DOUBLE("PCM Playback Volume", AC97_PCM, 8, 0, 31, 1),
SOC_SINGLE("PCM Playback Switch", AC97_PCM, 15, 1, 1),

SOC_DOUBLE("PCM Capture Volume", AC97_REC_GAIN, 8, 0, 31, 0),
SOC_SINGLE("PCM Capture Switch", AC97_REC_GAIN, 15, 1, 1),

SOC_SINGLE("Mono Playback Volume", AC97_MASTER_MONO, 0, 31, 1),
SOC_SINGLE("Mono Playback Switch", AC97_MASTER_MONO, 15, 1, 1),

SOC_SINGLE("Phone Capture Volume", AC97_PHONE, 0, 31, 1),
SOC_SINGLE("Phone Capture Switch", AC97_PHONE, 15, 1, 1),

SOC_SINGLE("Mic Volume", AC97_MIC, 0, 31, 1),
SOC_SINGLE("Mic Switch", AC97_MIC, 15, 1, 1),

SOC_SINGLE("Stereo Mic Switch", AC97_AD_MISC, 6, 1, 0),
SOC_DOUBLE("Line HP Swap Switch", AC97_AD_MISC, 10, 5, 1, 0),

SOC_DOUBLE("Surround Playback Volume", AC97_SURROUND_MASTER, 8, 0, 31, 1),
SOC_DOUBLE("Surround Playback Switch", AC97_SURROUND_MASTER, 15, 7, 1, 1),

SOC_DOUBLE("Center/LFE Playback Volume", AC97_CENTER_LFE_MASTER, 8, 0, 31, 1),
SOC_DOUBLE("Center/LFE Playback Switch", AC97_CENTER_LFE_MASTER, 15, 7, 1, 1),

SOC_ENUM("Capture Source", ad1980_cap_src),

SOC_SINGLE("Mic Boost Switch", AC97_MIC, 6, 1, 0),
};

static const struct snd_soc_dapm_widget ad1980_dapm_widgets[] = {
SND_SOC_DAPM_INPUT("MIC1"),
SND_SOC_DAPM_INPUT("MIC2"),
SND_SOC_DAPM_INPUT("CD_L"),
SND_SOC_DAPM_INPUT("CD_R"),
SND_SOC_DAPM_INPUT("AUX_L"),
SND_SOC_DAPM_INPUT("AUX_R"),
SND_SOC_DAPM_INPUT("LINE_IN_L"),
SND_SOC_DAPM_INPUT("LINE_IN_R"),

SND_SOC_DAPM_OUTPUT("LFE_OUT"),
SND_SOC_DAPM_OUTPUT("CENTER_OUT"),
SND_SOC_DAPM_OUTPUT("LINE_OUT_L"),
SND_SOC_DAPM_OUTPUT("LINE_OUT_R"),
SND_SOC_DAPM_OUTPUT("MONO_OUT"),
SND_SOC_DAPM_OUTPUT("HP_OUT_L"),
SND_SOC_DAPM_OUTPUT("HP_OUT_R"),
};

static const struct snd_soc_dapm_route ad1980_dapm_routes[] = {
	{ "Capture", NULL, "MIC1" },
	{ "Capture", NULL, "MIC2" },
	{ "Capture", NULL, "CD_L" },
	{ "Capture", NULL, "CD_R" },
	{ "Capture", NULL, "AUX_L" },
	{ "Capture", NULL, "AUX_R" },
	{ "Capture", NULL, "LINE_IN_L" },
	{ "Capture", NULL, "LINE_IN_R" },

	{ "LFE_OUT", NULL, "Playback" },
	{ "CENTER_OUT", NULL, "Playback" },
	{ "LINE_OUT_L", NULL, "Playback" },
	{ "LINE_OUT_R", NULL, "Playback" },
	{ "MONO_OUT", NULL, "Playback" },
	{ "HP_OUT_L", NULL, "Playback" },
	{ "HP_OUT_R", NULL, "Playback" },
};

static struct snd_soc_dai_driver ad1980_dai = {
	.name = "ad1980-hifi",
	.playback = {
		.stream_name = "Playback",
		.channels_min = 2,
		.channels_max = 6,
		.rates = SNDRV_PCM_RATE_48000,
		.formats = SND_SOC_STD_AC97_FMTS, },
	.capture = {
		.stream_name = "Capture",
		.channels_min = 2,
		.channels_max = 2,
		.rates = SNDRV_PCM_RATE_48000,
		.formats = SND_SOC_STD_AC97_FMTS, },
};

#define AD1980_VENDOR_ID 0x41445300
#define AD1980_VENDOR_MASK 0xffffff00

static int ad1980_reset(struct snd_soc_codec *codec, int try_warm)
{
	struct snd_ac97 *ac97 = snd_soc_codec_get_drvdata(codec);
	unsigned int retry_cnt = 0;
	int ret;

	do {
		ret = snd_ac97_reset(ac97, true, AD1980_VENDOR_ID,
			AD1980_VENDOR_MASK);
		if (ret >= 0)
			return 0;

		/*
		 * Set bit 16slot in register 74h, then every slot will has only
		 * 16 bits. This command is sent out in 20bit mode, in which
		 * case the first nibble of data is eaten by the addr. (Tag is
		 * always 16 bit)
		 */
		snd_soc_write(codec, AC97_AD_SERIAL_CFG, 0x9900);

	} while (retry_cnt++ < 10);

	dev_err(codec->dev, "Failed to reset: AC97 link error\n");

	return -EIO;
}

static int ad1980_soc_probe(struct snd_soc_codec *codec)
{
	struct snd_ac97 *ac97;
	struct regmap *regmap;
	int ret;
	u16 vendor_id2;
	u16 ext_status;

	ac97 = snd_soc_new_ac97_codec(codec, 0, 0);
	if (IS_ERR(ac97)) {
		ret = PTR_ERR(ac97);
		dev_err(codec->dev, "Failed to register AC97 codec: %d\n", ret);
		return ret;
	}

	regmap = regmap_init_ac97(ac97, &ad1980_regmap_config);
	if (IS_ERR(regmap)) {
		ret = PTR_ERR(regmap);
		goto err_free_ac97;
	}

	snd_soc_codec_init_regmap(codec, regmap);
	snd_soc_codec_set_drvdata(codec, ac97);

	ret = ad1980_reset(codec, 0);
	if (ret < 0)
		goto reset_err;

	vendor_id2 = snd_soc_read(codec, AC97_VENDOR_ID2);
	if (vendor_id2 == 0x5374) {
		dev_warn(codec->dev,
			"Found AD1981 - only 2/2 IN/OUT Channels supported\n");
	}

	/* unmute captures and playbacks volume */
	snd_soc_write(codec, AC97_MASTER, 0x0000);
	snd_soc_write(codec, AC97_PCM, 0x0000);
	snd_soc_write(codec, AC97_REC_GAIN, 0x0000);
	snd_soc_write(codec, AC97_CENTER_LFE_MASTER, 0x0000);
	snd_soc_write(codec, AC97_SURROUND_MASTER, 0x0000);

	/*power on LFE/CENTER/Surround DACs*/
	ext_status = snd_soc_read(codec, AC97_EXTENDED_STATUS);
	snd_soc_write(codec, AC97_EXTENDED_STATUS, ext_status&~0x3800);

	return 0;

reset_err:
	snd_soc_codec_exit_regmap(codec);
err_free_ac97:
	snd_soc_free_ac97_codec(ac97);
	return ret;
}

static int ad1980_soc_remove(struct snd_soc_codec *codec)
{
	struct snd_ac97 *ac97 = snd_soc_codec_get_drvdata(codec);

	snd_soc_codec_exit_regmap(codec);
	snd_soc_free_ac97_codec(ac97);
	return 0;
}

static struct snd_soc_codec_driver soc_codec_dev_ad1980 = {
	.probe = 	ad1980_soc_probe,
	.remove = 	ad1980_soc_remove,

	.component_driver = {
		.controls		= ad1980_snd_ac97_controls,
		.num_controls		= ARRAY_SIZE(ad1980_snd_ac97_controls),
		.dapm_widgets		= ad1980_dapm_widgets,
		.num_dapm_widgets	= ARRAY_SIZE(ad1980_dapm_widgets),
		.dapm_routes		= ad1980_dapm_routes,
		.num_dapm_routes	= ARRAY_SIZE(ad1980_dapm_routes),
	},
};

static int ad1980_probe(struct platform_device *pdev)
{
	return snd_soc_register_codec(&pdev->dev,
			&soc_codec_dev_ad1980, &ad1980_dai, 1);
}

static int ad1980_remove(struct platform_device *pdev)
{
	snd_soc_unregister_codec(&pdev->dev);
	return 0;
}

static struct platform_driver ad1980_codec_driver = {
	.driver = {
			.name = "ad1980",
	},

	.probe = ad1980_probe,
	.remove = ad1980_remove,
};

module_platform_driver(ad1980_codec_driver);

MODULE_DESCRIPTION("ASoC ad1980 driver (Obsolete)");
MODULE_AUTHOR("Roy Huang, Cliff Cai");
MODULE_LICENSE("GPL");
Commit	Line	Data
5f57dc8b CC	1	/*
	2	* ad1980.c -- ALSA Soc AD1980 codec support
	3	*
	4	* Copyright: Analog Device Inc.
	5	* Author: Roy Huang <roy.huang@analog.com>
	6	* Cliff Cai <cliff.cai@analog.com>
	7	*
	8	* This program is free software; you can redistribute it and/or modify it
	9	* under the terms of the GNU General Public License as published by the
	10	* Free Software Foundation; either version 2 of the License, or (at your
	11	* option) any later version.
	12	*/
	13
2e2211a3 SZ	14	/*
	15	* WARNING:
	16	*
	17	* Because Analog Devices Inc. discontinued the ad1980 sound chip since
	18	* Sep. 2009, this ad1980 driver is not maintained, tested and supported
	19	* by ADI now.
	20	*/
	21
5f57dc8b	22	#include <linux/init.h>
5a0e3ad6	23	#include <linux/slab.h>
5f57dc8b	24	#include <linux/module.h>
5f57dc8b CC	25	#include <linux/kernel.h>
5f57dc8b CC	26	#include <linux/device.h>
82d14636	27	#include <linux/regmap.h>
5f57dc8b CC	28	#include <sound/core.h>
	29	#include <sound/pcm.h>
	30	#include <sound/ac97_codec.h>
	31	#include <sound/initval.h>
	32	#include <sound/soc.h>
5f57dc8b	33
82d14636 LPC	34	static const struct reg_default ad1980_reg_defaults[] = {
	35	{ 0x02, 0x8000 },
	36	{ 0x04, 0x8000 },
	37	{ 0x06, 0x8000 },
	38	{ 0x0c, 0x8008 },
	39	{ 0x0e, 0x8008 },
	40	{ 0x10, 0x8808 },
	41	{ 0x12, 0x8808 },
	42	{ 0x16, 0x8808 },
	43	{ 0x18, 0x8808 },
	44	{ 0x1a, 0x0000 },
	45	{ 0x1c, 0x8000 },
	46	{ 0x20, 0x0000 },
	47	{ 0x28, 0x03c7 },
	48	{ 0x2c, 0xbb80 },
	49	{ 0x2e, 0xbb80 },
	50	{ 0x30, 0xbb80 },
	51	{ 0x32, 0xbb80 },
	52	{ 0x36, 0x8080 },
	53	{ 0x38, 0x8080 },
	54	{ 0x3a, 0x2000 },
	55	{ 0x60, 0x0000 },
	56	{ 0x62, 0x0000 },
	57	{ 0x72, 0x0000 },
	58	{ 0x74, 0x1001 },
	59	{ 0x76, 0x0000 },
	60	};
	61
	62	static bool ad1980_readable_reg(struct device *dev, unsigned int reg)
	63	{
	64	switch (reg) {
	65	case AC97_RESET ... AC97_MASTER_MONO:
	66	case AC97_PHONE ... AC97_CD:
	67	case AC97_AUX ... AC97_GENERAL_PURPOSE:
	68	case AC97_POWERDOWN ... AC97_PCM_LR_ADC_RATE:
	69	case AC97_SPDIF:
	70	case AC97_CODEC_CLASS_REV:
	71	case AC97_PCI_SVID:
	72	case AC97_AD_CODEC_CFG:
	73	case AC97_AD_JACK_SPDIF:
	74	case AC97_AD_SERIAL_CFG:
	75	case AC97_VENDOR_ID1:
	76	case AC97_VENDOR_ID2:
	77	return true;
	78	default:
	79	return false;
	80	}
	81	}
	82
	83	static bool ad1980_writeable_reg(struct device *dev, unsigned int reg)
	84	{
	85	switch (reg) {
	86	case AC97_VENDOR_ID1:
	87	case AC97_VENDOR_ID2:
	88	return false;
	89	default:
	90	return ad1980_readable_reg(dev, reg);
	91	}
	92	}
	93
	94	static const struct regmap_config ad1980_regmap_config = {
	95	.reg_bits = 16,
	96	.reg_stride = 2,
	97	.val_bits = 16,
98	.max_register = 0x7e,
99	.cache_type = REGCACHE_RBTREE,
100
101	.volatile_reg = regmap_ac97_default_volatile,
102	.readable_reg = ad1980_readable_reg,
103	.writeable_reg = ad1980_writeable_reg,
104
105	.reg_defaults = ad1980_reg_defaults,
106	.num_reg_defaults = ARRAY_SIZE(ad1980_reg_defaults),
5f57dc8b CC	107	};
	108
	109	static const char *ad1980_rec_sel[] = {"Mic", "CD", "NC", "AUX", "Line",
	110	"Stereo Mix", "Mono Mix", "Phone"};
	111
901bb6c5 TI	112	static SOC_ENUM_DOUBLE_DECL(ad1980_cap_src,
901bb6c5 TI	113	AC97_REC_SEL, 8, 0, ad1980_rec_sel);
5f57dc8b CC	114
	115	static const struct snd_kcontrol_new ad1980_snd_ac97_controls[] = {
	116	SOC_DOUBLE("Master Playback Volume", AC97_MASTER, 8, 0, 31, 1),
	117	SOC_SINGLE("Master Playback Switch", AC97_MASTER, 15, 1, 1),
	118
	119	SOC_DOUBLE("Headphone Playback Volume", AC97_HEADPHONE, 8, 0, 31, 1),
	120	SOC_SINGLE("Headphone Playback Switch", AC97_HEADPHONE, 15, 1, 1),
	121
	122	SOC_DOUBLE("PCM Playback Volume", AC97_PCM, 8, 0, 31, 1),
	123	SOC_SINGLE("PCM Playback Switch", AC97_PCM, 15, 1, 1),
	124
	125	SOC_DOUBLE("PCM Capture Volume", AC97_REC_GAIN, 8, 0, 31, 0),
	126	SOC_SINGLE("PCM Capture Switch", AC97_REC_GAIN, 15, 1, 1),
	127
	128	SOC_SINGLE("Mono Playback Volume", AC97_MASTER_MONO, 0, 31, 1),
	129	SOC_SINGLE("Mono Playback Switch", AC97_MASTER_MONO, 15, 1, 1),
	130
	131	SOC_SINGLE("Phone Capture Volume", AC97_PHONE, 0, 31, 1),
	132	SOC_SINGLE("Phone Capture Switch", AC97_PHONE, 15, 1, 1),
	133
	134	SOC_SINGLE("Mic Volume", AC97_MIC, 0, 31, 1),
	135	SOC_SINGLE("Mic Switch", AC97_MIC, 15, 1, 1),
	136
	137	SOC_SINGLE("Stereo Mic Switch", AC97_AD_MISC, 6, 1, 0),
	138	SOC_DOUBLE("Line HP Swap Switch", AC97_AD_MISC, 10, 5, 1, 0),
	139
	140	SOC_DOUBLE("Surround Playback Volume", AC97_SURROUND_MASTER, 8, 0, 31, 1),
	141	SOC_DOUBLE("Surround Playback Switch", AC97_SURROUND_MASTER, 15, 7, 1, 1),
	142
9905ed35 CC	143	SOC_DOUBLE("Center/LFE Playback Volume", AC97_CENTER_LFE_MASTER, 8, 0, 31, 1),
	144	SOC_DOUBLE("Center/LFE Playback Switch", AC97_CENTER_LFE_MASTER, 15, 7, 1, 1),
	145
5f57dc8b CC	146	SOC_ENUM("Capture Source", ad1980_cap_src),
	147
	148	SOC_SINGLE("Mic Boost Switch", AC97_MIC, 6, 1, 0),
	149	};
	150
9e7e474c MB	151	static const struct snd_soc_dapm_widget ad1980_dapm_widgets[] = {
	152	SND_SOC_DAPM_INPUT("MIC1"),
	153	SND_SOC_DAPM_INPUT("MIC2"),
	154	SND_SOC_DAPM_INPUT("CD_L"),
	155	SND_SOC_DAPM_INPUT("CD_R"),
	156	SND_SOC_DAPM_INPUT("AUX_L"),
	157	SND_SOC_DAPM_INPUT("AUX_R"),
	158	SND_SOC_DAPM_INPUT("LINE_IN_L"),
	159	SND_SOC_DAPM_INPUT("LINE_IN_R"),
	160
	161	SND_SOC_DAPM_OUTPUT("LFE_OUT"),
	162	SND_SOC_DAPM_OUTPUT("CENTER_OUT"),
	163	SND_SOC_DAPM_OUTPUT("LINE_OUT_L"),
	164	SND_SOC_DAPM_OUTPUT("LINE_OUT_R"),
	165	SND_SOC_DAPM_OUTPUT("MONO_OUT"),
	166	SND_SOC_DAPM_OUTPUT("HP_OUT_L"),
	167	SND_SOC_DAPM_OUTPUT("HP_OUT_R"),
	168	};
	169
	170	static const struct snd_soc_dapm_route ad1980_dapm_routes[] = {
	171	{ "Capture", NULL, "MIC1" },
	172	{ "Capture", NULL, "MIC2" },
	173	{ "Capture", NULL, "CD_L" },
	174	{ "Capture", NULL, "CD_R" },
	175	{ "Capture", NULL, "AUX_L" },
	176	{ "Capture", NULL, "AUX_R" },
	177	{ "Capture", NULL, "LINE_IN_L" },
	178	{ "Capture", NULL, "LINE_IN_R" },
	179
	180	{ "LFE_OUT", NULL, "Playback" },
	181	{ "CENTER_OUT", NULL, "Playback" },
	182	{ "LINE_OUT_L", NULL, "Playback" },
	183	{ "LINE_OUT_R", NULL, "Playback" },
	184	{ "MONO_OUT", NULL, "Playback" },
	185	{ "HP_OUT_L", NULL, "Playback" },
	186	{ "HP_OUT_R", NULL, "Playback" },
	187	};
	188
de535a5b	189	static struct snd_soc_dai_driver ad1980_dai = {
f0fba2ad	190	.name = "ad1980-hifi",
5f57dc8b CC	191	.playback = {
	192	.stream_name = "Playback",
	193	.channels_min = 2,
9905ed35	194	.channels_max = 6,
5f57dc8b	195	.rates = SNDRV_PCM_RATE_48000,
33f503c9	196	.formats = SND_SOC_STD_AC97_FMTS, },
5f57dc8b CC	197	.capture = {
	198	.stream_name = "Capture",
	199	.channels_min = 2,
	200	.channels_max = 2,
	201	.rates = SNDRV_PCM_RATE_48000,
33f503c9	202	.formats = SND_SOC_STD_AC97_FMTS, },
5f57dc8b	203	};
5f57dc8b	204
3ab3dbdf LPC	205	#define AD1980_VENDOR_ID 0x41445300
	206	#define AD1980_VENDOR_MASK 0xffffff00
	207
5f57dc8b CC	208	static int ad1980_reset(struct snd_soc_codec *codec, int try_warm)
5f57dc8b CC	209	{
358a8bb5	210	struct snd_ac97 *ac97 = snd_soc_codec_get_drvdata(codec);
cf7b71f4	211	unsigned int retry_cnt = 0;
3ab3dbdf	212	int ret;
cf7b71f4 LPC	213
cf7b71f4 LPC	214	do {
3ab3dbdf LPC	215	ret = snd_ac97_reset(ac97, true, AD1980_VENDOR_ID,
	216	AD1980_VENDOR_MASK);
	217	if (ret >= 0)
	218	return 0;
cf7b71f4	219
cf7b71f4 LPC	220	/*
	221	* Set bit 16slot in register 74h, then every slot will has only
	222	* 16 bits. This command is sent out in 20bit mode, in which
	223	* case the first nibble of data is eaten by the addr. (Tag is
	224	* always 16 bit)
	225	*/
17bb5773	226	snd_soc_write(codec, AC97_AD_SERIAL_CFG, 0x9900);
cf7b71f4	227
cf7b71f4	228	} while (retry_cnt++ < 10);
5f57dc8b	229
e5adb6cd LPC	230	dev_err(codec->dev, "Failed to reset: AC97 link error\n");
e5adb6cd LPC	231
5f57dc8b CC	232	return -EIO;
	233	}
	234
f0fba2ad	235	static int ad1980_soc_probe(struct snd_soc_codec *codec)
5f57dc8b	236	{
358a8bb5	237	struct snd_ac97 *ac97;
82d14636	238	struct regmap *regmap;
f0fba2ad	239	int ret;
5f57dc8b	240	u16 vendor_id2;
9905ed35	241	u16 ext_status;
5f57dc8b	242
7361fbea	243	ac97 = snd_soc_new_ac97_codec(codec, 0, 0);
358a8bb5 LPC	244	if (IS_ERR(ac97)) {
	245	ret = PTR_ERR(ac97);
	246	dev_err(codec->dev, "Failed to register AC97 codec: %d\n", ret);
f0fba2ad	247	return ret;
5f57dc8b CC	248	}
5f57dc8b CC	249
82d14636 LPC	250	regmap = regmap_init_ac97(ac97, &ad1980_regmap_config);
	251	if (IS_ERR(regmap)) {
	252	ret = PTR_ERR(regmap);
	253	goto err_free_ac97;
	254	}
	255
	256	snd_soc_codec_init_regmap(codec, regmap);
358a8bb5 LPC	257	snd_soc_codec_set_drvdata(codec, ac97);
358a8bb5 LPC	258
5f57dc8b	259	ret = ad1980_reset(codec, 0);
e5adb6cd	260	if (ret < 0)
5f57dc8b	261	goto reset_err;
5f57dc8b	262
17bb5773	263	vendor_id2 = snd_soc_read(codec, AC97_VENDOR_ID2);
3ab3dbdf LPC	264	if (vendor_id2 == 0x5374) {
	265	dev_warn(codec->dev,
	266	"Found AD1981 - only 2/2 IN/OUT Channels supported\n");
5f57dc8b CC	267	}
5f57dc8b CC	268
9905ed35	269	/* unmute captures and playbacks volume */
17bb5773 LPC	270	snd_soc_write(codec, AC97_MASTER, 0x0000);
	271	snd_soc_write(codec, AC97_PCM, 0x0000);
	272	snd_soc_write(codec, AC97_REC_GAIN, 0x0000);
	273	snd_soc_write(codec, AC97_CENTER_LFE_MASTER, 0x0000);
	274	snd_soc_write(codec, AC97_SURROUND_MASTER, 0x0000);
9905ed35 CC	275
9905ed35 CC	276	/power on LFE/CENTER/Surround DACs/
17bb5773 LPC	277	ext_status = snd_soc_read(codec, AC97_EXTENDED_STATUS);
17bb5773 LPC	278	snd_soc_write(codec, AC97_EXTENDED_STATUS, ext_status&~0x3800);
5f57dc8b	279
5f57dc8b CC	280	return 0;
	281
	282	reset_err:
82d14636 LPC	283	snd_soc_codec_exit_regmap(codec);
82d14636 LPC	284	err_free_ac97:
358a8bb5	285	snd_soc_free_ac97_codec(ac97);
5f57dc8b CC	286	return ret;
	287	}
	288
f0fba2ad	289	static int ad1980_soc_remove(struct snd_soc_codec *codec)
5f57dc8b	290	{
358a8bb5 LPC	291	struct snd_ac97 *ac97 = snd_soc_codec_get_drvdata(codec);
358a8bb5 LPC	292
82d14636	293	snd_soc_codec_exit_regmap(codec);
358a8bb5	294	snd_soc_free_ac97_codec(ac97);
5f57dc8b CC	295	return 0;
	296	}
	297
f0fba2ad	298	static struct snd_soc_codec_driver soc_codec_dev_ad1980 = {
5f57dc8b CC	299	.probe = ad1980_soc_probe,
5f57dc8b CC	300	.remove = ad1980_soc_remove,
9e7e474c	301
05a0d2d4 KM	302	.component_driver = {
	303	.controls = ad1980_snd_ac97_controls,
	304	.num_controls = ARRAY_SIZE(ad1980_snd_ac97_controls),
	305	.dapm_widgets = ad1980_dapm_widgets,
	306	.num_dapm_widgets = ARRAY_SIZE(ad1980_dapm_widgets),
	307	.dapm_routes = ad1980_dapm_routes,
	308	.num_dapm_routes = ARRAY_SIZE(ad1980_dapm_routes),
	309	},
5f57dc8b	310	};
f0fba2ad	311
7a79e94e	312	static int ad1980_probe(struct platform_device *pdev)
f0fba2ad LG	313	{
	314	return snd_soc_register_codec(&pdev->dev,
	315	&soc_codec_dev_ad1980, &ad1980_dai, 1);
	316	}
	317
7a79e94e	318	static int ad1980_remove(struct platform_device *pdev)
f0fba2ad LG	319	{
	320	snd_soc_unregister_codec(&pdev->dev);
	321	return 0;
	322	}
	323
	324	static struct platform_driver ad1980_codec_driver = {
	325	.driver = {
1afa98b8	326	.name = "ad1980",
f0fba2ad LG	327	},
	328
	329	.probe = ad1980_probe,
7a79e94e	330	.remove = ad1980_remove,
f0fba2ad LG	331	};
f0fba2ad LG	332
5bbcc3c0	333	module_platform_driver(ad1980_codec_driver);
5f57dc8b	334
2e2211a3	335	MODULE_DESCRIPTION("ASoC ad1980 driver (Obsolete)");
5f57dc8b CC	336	MODULE_AUTHOR("Roy Huang, Cliff Cai");
5f57dc8b CC	337	MODULE_LICENSE("GPL");