[deliverable/linux.git] / sound / soc / codecs / stac9766.c

/*
 * stac9766.c  --  ALSA SoC STAC9766 codec support
 *
 * Copyright 2009 Jon Smirl, Digispeaker
 * Author: Jon Smirl <jonsmirl@gmail.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.
 *
 *  Features:-
 *
 *   o Support for AC97 Codec, S/PDIF
 */

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

#include "stac9766.h"

#define STAC9766_VENDOR_ID 0x83847666
#define STAC9766_VENDOR_ID_MASK 0xffffffff

/*
 * STAC9766 register cache
 */
static const u16 stac9766_reg[] = {
	0x6A90, 0x8000, 0x8000, 0x8000, /* 6 */
	0x0000, 0x0000, 0x8008, 0x8008, /* e */
	0x8808, 0x8808, 0x8808, 0x8808, /* 16 */
	0x8808, 0x0000, 0x8000, 0x0000, /* 1e */
	0x0000, 0x0000, 0x0000, 0x000f, /* 26 */
	0x0a05, 0x0400, 0xbb80, 0x0000, /* 2e */
	0x0000, 0xbb80, 0x0000, 0x0000, /* 36 */
	0x0000, 0x2000, 0x0000, 0x0100, /* 3e */
	0x0000, 0x0000, 0x0080, 0x0000, /* 46 */
	0x0000, 0x0000, 0x0003, 0xffff, /* 4e */
	0x0000, 0x0000, 0x0000, 0x0000, /* 56 */
	0x4000, 0x0000, 0x0000, 0x0000, /* 5e */
	0x1201, 0xFFFF, 0xFFFF, 0x0000, /* 66 */
	0x0000, 0x0000, 0x0000, 0x0000, /* 6e */
	0x0000, 0x0000, 0x0000, 0x0006, /* 76 */
	0x0000, 0x0000, 0x0000, 0x0000, /* 7e */
};

static const char *stac9766_record_mux[] = {"Mic", "CD", "Video", "AUX",
			"Line", "Stereo Mix", "Mono Mix", "Phone"};
static const char *stac9766_mono_mux[] = {"Mix", "Mic"};
static const char *stac9766_mic_mux[] = {"Mic1", "Mic2"};
static const char *stac9766_SPDIF_mux[] = {"PCM", "ADC Record"};
static const char *stac9766_popbypass_mux[] = {"Normal", "Bypass Mixer"};
static const char *stac9766_record_all_mux[] = {"All analog",
	"Analog plus DAC"};
static const char *stac9766_boost1[] = {"0dB", "10dB"};
static const char *stac9766_boost2[] = {"0dB", "20dB"};
static const char *stac9766_stereo_mic[] = {"Off", "On"};

static SOC_ENUM_DOUBLE_DECL(stac9766_record_enum,
			    AC97_REC_SEL, 8, 0, stac9766_record_mux);
static SOC_ENUM_SINGLE_DECL(stac9766_mono_enum,
			    AC97_GENERAL_PURPOSE, 9, stac9766_mono_mux);
static SOC_ENUM_SINGLE_DECL(stac9766_mic_enum,
			    AC97_GENERAL_PURPOSE, 8, stac9766_mic_mux);
static SOC_ENUM_SINGLE_DECL(stac9766_SPDIF_enum,
			    AC97_STAC_DA_CONTROL, 1, stac9766_SPDIF_mux);
static SOC_ENUM_SINGLE_DECL(stac9766_popbypass_enum,
			    AC97_GENERAL_PURPOSE, 15, stac9766_popbypass_mux);
static SOC_ENUM_SINGLE_DECL(stac9766_record_all_enum,
			    AC97_STAC_ANALOG_SPECIAL, 12,
			    stac9766_record_all_mux);
static SOC_ENUM_SINGLE_DECL(stac9766_boost1_enum,
			    AC97_MIC, 6, stac9766_boost1); /* 0/10dB */
static SOC_ENUM_SINGLE_DECL(stac9766_boost2_enum,
			    AC97_STAC_ANALOG_SPECIAL, 2, stac9766_boost2); /* 0/20dB */
static SOC_ENUM_SINGLE_DECL(stac9766_stereo_mic_enum,
			    AC97_STAC_STEREO_MIC, 2, stac9766_stereo_mic);

static const DECLARE_TLV_DB_LINEAR(master_tlv, -4600, 0);
static const DECLARE_TLV_DB_LINEAR(record_tlv, 0, 2250);
static const DECLARE_TLV_DB_LINEAR(beep_tlv, -4500, 0);
static const DECLARE_TLV_DB_LINEAR(mix_tlv, -3450, 1200);

static const struct snd_kcontrol_new stac9766_snd_ac97_controls[] = {
	SOC_DOUBLE_TLV("Speaker Volume", AC97_MASTER, 8, 0, 31, 1, master_tlv),
	SOC_SINGLE("Speaker Switch", AC97_MASTER, 15, 1, 1),
	SOC_DOUBLE_TLV("Headphone Volume", AC97_HEADPHONE, 8, 0, 31, 1,
		       master_tlv),
	SOC_SINGLE("Headphone Switch", AC97_HEADPHONE, 15, 1, 1),
	SOC_SINGLE_TLV("Mono Out Volume", AC97_MASTER_MONO, 0, 31, 1,
		       master_tlv),
	SOC_SINGLE("Mono Out Switch", AC97_MASTER_MONO, 15, 1, 1),

	SOC_DOUBLE_TLV("Record Volume", AC97_REC_GAIN, 8, 0, 15, 0, record_tlv),
	SOC_SINGLE("Record Switch", AC97_REC_GAIN, 15, 1, 1),


	SOC_SINGLE_TLV("Beep Volume", AC97_PC_BEEP, 1, 15, 1, beep_tlv),
	SOC_SINGLE("Beep Switch", AC97_PC_BEEP, 15, 1, 1),
	SOC_SINGLE("Beep Frequency", AC97_PC_BEEP, 5, 127, 1),
	SOC_SINGLE_TLV("Phone Volume", AC97_PHONE, 0, 31, 1, mix_tlv),
	SOC_SINGLE("Phone Switch", AC97_PHONE, 15, 1, 1),

	SOC_ENUM("Mic Boost1", stac9766_boost1_enum),
	SOC_ENUM("Mic Boost2", stac9766_boost2_enum),
	SOC_SINGLE_TLV("Mic Volume", AC97_MIC, 0, 31, 1, mix_tlv),
	SOC_SINGLE("Mic Switch", AC97_MIC, 15, 1, 1),
	SOC_ENUM("Stereo Mic", stac9766_stereo_mic_enum),

	SOC_DOUBLE_TLV("Line Volume", AC97_LINE, 8, 0, 31, 1, mix_tlv),
	SOC_SINGLE("Line Switch", AC97_LINE, 15, 1, 1),
	SOC_DOUBLE_TLV("CD Volume", AC97_CD, 8, 0, 31, 1, mix_tlv),
	SOC_SINGLE("CD Switch", AC97_CD, 15, 1, 1),
	SOC_DOUBLE_TLV("AUX Volume", AC97_AUX, 8, 0, 31, 1, mix_tlv),
	SOC_SINGLE("AUX Switch", AC97_AUX, 15, 1, 1),
	SOC_DOUBLE_TLV("Video Volume", AC97_VIDEO, 8, 0, 31, 1, mix_tlv),
	SOC_SINGLE("Video Switch", AC97_VIDEO, 15, 1, 1),

	SOC_DOUBLE_TLV("DAC Volume", AC97_PCM, 8, 0, 31, 1, mix_tlv),
	SOC_SINGLE("DAC Switch", AC97_PCM, 15, 1, 1),
	SOC_SINGLE("Loopback Test Switch", AC97_GENERAL_PURPOSE, 7, 1, 0),
	SOC_SINGLE("3D Volume", AC97_3D_CONTROL, 3, 2, 1),
	SOC_SINGLE("3D Switch", AC97_GENERAL_PURPOSE, 13, 1, 0),

	SOC_ENUM("SPDIF Mux", stac9766_SPDIF_enum),
	SOC_ENUM("Mic1/2 Mux", stac9766_mic_enum),
	SOC_ENUM("Record All Mux", stac9766_record_all_enum),
	SOC_ENUM("Record Mux", stac9766_record_enum),
	SOC_ENUM("Mono Mux", stac9766_mono_enum),
	SOC_ENUM("Pop Bypass Mux", stac9766_popbypass_enum),
};

static int stac9766_ac97_write(struct snd_soc_codec *codec, unsigned int reg,
			       unsigned int val)
{
	struct snd_ac97 *ac97 = snd_soc_codec_get_drvdata(codec);
	u16 *cache = codec->reg_cache;

	if (reg > AC97_STAC_PAGE0) {
		stac9766_ac97_write(codec, AC97_INT_PAGING, 0);
		soc_ac97_ops->write(ac97, reg, val);
		stac9766_ac97_write(codec, AC97_INT_PAGING, 1);
		return 0;
	}
	if (reg / 2 >= ARRAY_SIZE(stac9766_reg))
		return -EIO;

	soc_ac97_ops->write(ac97, reg, val);
	cache[reg / 2] = val;
	return 0;
}

static unsigned int stac9766_ac97_read(struct snd_soc_codec *codec,
				       unsigned int reg)
{
	struct snd_ac97 *ac97 = snd_soc_codec_get_drvdata(codec);
	u16 val = 0, *cache = codec->reg_cache;

	if (reg > AC97_STAC_PAGE0) {
		stac9766_ac97_write(codec, AC97_INT_PAGING, 0);
		val = soc_ac97_ops->read(ac97, reg - AC97_STAC_PAGE0);
		stac9766_ac97_write(codec, AC97_INT_PAGING, 1);
		return val;
	}
	if (reg / 2 >= ARRAY_SIZE(stac9766_reg))
		return -EIO;

	if (reg == AC97_RESET || reg == AC97_GPIO_STATUS ||
		reg == AC97_INT_PAGING || reg == AC97_VENDOR_ID1 ||
		reg == AC97_VENDOR_ID2) {

		val = soc_ac97_ops->read(ac97, reg);
		return val;
	}
	return cache[reg / 2];
}

static int ac97_analog_prepare(struct snd_pcm_substream *substream,
			       struct snd_soc_dai *dai)
{
	struct snd_soc_codec *codec = dai->codec;
	struct snd_pcm_runtime *runtime = substream->runtime;
	unsigned short reg, vra;

	vra = stac9766_ac97_read(codec, AC97_EXTENDED_STATUS);

	vra |= 0x1; /* enable variable rate audio */
	vra &= ~0x4; /* disable SPDIF output */

	stac9766_ac97_write(codec, AC97_EXTENDED_STATUS, vra);

	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
		reg = AC97_PCM_FRONT_DAC_RATE;
	else
		reg = AC97_PCM_LR_ADC_RATE;

	return stac9766_ac97_write(codec, reg, runtime->rate);
}

static int ac97_digital_prepare(struct snd_pcm_substream *substream,
				struct snd_soc_dai *dai)
{
	struct snd_soc_codec *codec = dai->codec;
	struct snd_pcm_runtime *runtime = substream->runtime;
	unsigned short reg, vra;

	stac9766_ac97_write(codec, AC97_SPDIF, 0x2002);

	vra = stac9766_ac97_read(codec, AC97_EXTENDED_STATUS);
	vra |= 0x5; /* Enable VRA and SPDIF out */

	stac9766_ac97_write(codec, AC97_EXTENDED_STATUS, vra);

	reg = AC97_PCM_FRONT_DAC_RATE;

	return stac9766_ac97_write(codec, reg, runtime->rate);
}

static int stac9766_set_bias_level(struct snd_soc_codec *codec,
				   enum snd_soc_bias_level level)
{
	switch (level) {
	case SND_SOC_BIAS_ON: /* full On */
	case SND_SOC_BIAS_PREPARE: /* partial On */
	case SND_SOC_BIAS_STANDBY: /* Off, with power */
		stac9766_ac97_write(codec, AC97_POWERDOWN, 0x0000);
		break;
	case SND_SOC_BIAS_OFF: /* Off, without power */
		/* disable everything including AC link */
		stac9766_ac97_write(codec, AC97_POWERDOWN, 0xffff);
		break;
	}
	return 0;
}

static int stac9766_codec_resume(struct snd_soc_codec *codec)
{
	struct snd_ac97 *ac97 = snd_soc_codec_get_drvdata(codec);

	return snd_ac97_reset(ac97, true, STAC9766_VENDOR_ID,
		STAC9766_VENDOR_ID_MASK);
}

static const struct snd_soc_dai_ops stac9766_dai_ops_analog = {
	.prepare = ac97_analog_prepare,
};

static const struct snd_soc_dai_ops stac9766_dai_ops_digital = {
	.prepare = ac97_digital_prepare,
};

static struct snd_soc_dai_driver stac9766_dai[] = {
{
	.name = "stac9766-hifi-analog",

	/* stream cababilities */
	.playback = {
		.stream_name = "stac9766 analog",
		.channels_min = 1,
		.channels_max = 2,
		.rates = SNDRV_PCM_RATE_8000_48000,
		.formats = SND_SOC_STD_AC97_FMTS,
	},
	.capture = {
		.stream_name = "stac9766 analog",
		.channels_min = 1,
		.channels_max = 2,
		.rates = SNDRV_PCM_RATE_8000_48000,
		.formats = SND_SOC_STD_AC97_FMTS,
	},
	/* alsa ops */
	.ops = &stac9766_dai_ops_analog,
},
{
	.name = "stac9766-hifi-IEC958",

	/* stream cababilities */
	.playback = {
		.stream_name = "stac9766 IEC958",
		.channels_min = 1,
		.channels_max = 2,
		.rates = SNDRV_PCM_RATE_32000 | \
			SNDRV_PCM_RATE_44100 | SNDRV_PCM_RATE_48000,
		.formats = SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_BE,
	},
	/* alsa ops */
	.ops = &stac9766_dai_ops_digital,
}
};

static int stac9766_codec_probe(struct snd_soc_codec *codec)
{
	struct snd_ac97 *ac97;

	ac97 = snd_soc_new_ac97_codec(codec, STAC9766_VENDOR_ID,
			STAC9766_VENDOR_ID_MASK);
	if (IS_ERR(ac97))
		return PTR_ERR(ac97);

	snd_soc_codec_set_drvdata(codec, ac97);

	return 0;
}

static int stac9766_codec_remove(struct snd_soc_codec *codec)
{
	struct snd_ac97 *ac97 = snd_soc_codec_get_drvdata(codec);

	snd_soc_free_ac97_codec(ac97);
	return 0;
}

static struct snd_soc_codec_driver soc_codec_dev_stac9766 = {
	.component_driver = {
		.controls		= stac9766_snd_ac97_controls,
		.num_controls		= ARRAY_SIZE(stac9766_snd_ac97_controls),
	},
	.write = stac9766_ac97_write,
	.read = stac9766_ac97_read,
	.set_bias_level = stac9766_set_bias_level,
	.suspend_bias_off = true,
	.probe = stac9766_codec_probe,
	.remove = stac9766_codec_remove,
	.resume = stac9766_codec_resume,
	.reg_cache_size = ARRAY_SIZE(stac9766_reg),
	.reg_word_size = sizeof(u16),
	.reg_cache_step = 2,
	.reg_cache_default = stac9766_reg,
};

static int stac9766_probe(struct platform_device *pdev)
{
	return snd_soc_register_codec(&pdev->dev,
			&soc_codec_dev_stac9766, stac9766_dai, ARRAY_SIZE(stac9766_dai));
}

static int stac9766_remove(struct platform_device *pdev)
{
	snd_soc_unregister_codec(&pdev->dev);
	return 0;
}

static struct platform_driver stac9766_codec_driver = {
	.driver = {
			.name = "stac9766-codec",
	},

	.probe = stac9766_probe,
	.remove = stac9766_remove,
};

module_platform_driver(stac9766_codec_driver);

MODULE_DESCRIPTION("ASoC stac9766 driver");
MODULE_AUTHOR("Jon Smirl <jonsmirl@gmail.com>");
MODULE_LICENSE("GPL");
Commit	Line	Data
3c166c7f JS	1	/*
	2	* stac9766.c -- ALSA SoC STAC9766 codec support
	3	*
	4	* Copyright 2009 Jon Smirl, Digispeaker
	5	* Author: Jon Smirl <jonsmirl@gmail.com>
	6	*
	7	* This program is free software; you can redistribute it and/or modify it
	8	* under the terms of the GNU General Public License as published by the
	9	* Free Software Foundation; either version 2 of the License, or (at your
	10	* option) any later version.
	11	*
	12	* Features:-
	13	*
	14	* o Support for AC97 Codec, S/PDIF
	15	*/
	16
	17	#include <linux/init.h>
5a0e3ad6	18	#include <linux/slab.h>
3c166c7f JS	19	#include <linux/module.h>
	20	#include <linux/device.h>
	21	#include <sound/core.h>
	22	#include <sound/pcm.h>
	23	#include <sound/ac97_codec.h>
	24	#include <sound/initval.h>
	25	#include <sound/pcm_params.h>
	26	#include <sound/soc.h>
	27	#include <sound/tlv.h>
3c166c7f JS	28
	29	#include "stac9766.h"
	30
017e800a LPC	31	#define STAC9766_VENDOR_ID 0x83847666
	32	#define STAC9766_VENDOR_ID_MASK 0xffffffff
	33
3c166c7f JS	34	/*
	35	* STAC9766 register cache
	36	*/
	37	static const u16 stac9766_reg[] = {
	38	0x6A90, 0x8000, 0x8000, 0x8000, /* 6 */
	39	0x0000, 0x0000, 0x8008, 0x8008, /* e */
	40	0x8808, 0x8808, 0x8808, 0x8808, /* 16 */
	41	0x8808, 0x0000, 0x8000, 0x0000, /* 1e */
	42	0x0000, 0x0000, 0x0000, 0x000f, /* 26 */
	43	0x0a05, 0x0400, 0xbb80, 0x0000, /* 2e */
	44	0x0000, 0xbb80, 0x0000, 0x0000, /* 36 */
	45	0x0000, 0x2000, 0x0000, 0x0100, /* 3e */
	46	0x0000, 0x0000, 0x0080, 0x0000, /* 46 */
	47	0x0000, 0x0000, 0x0003, 0xffff, /* 4e */
	48	0x0000, 0x0000, 0x0000, 0x0000, /* 56 */
	49	0x4000, 0x0000, 0x0000, 0x0000, /* 5e */
	50	0x1201, 0xFFFF, 0xFFFF, 0x0000, /* 66 */
	51	0x0000, 0x0000, 0x0000, 0x0000, /* 6e */
	52	0x0000, 0x0000, 0x0000, 0x0006, /* 76 */
	53	0x0000, 0x0000, 0x0000, 0x0000, /* 7e */
	54	};
	55
05e1efa2 MB	56	static const char *stac9766_record_mux[] = {"Mic", "CD", "Video", "AUX",
05e1efa2 MB	57	"Line", "Stereo Mix", "Mono Mix", "Phone"};
3c166c7f JS	58	static const char *stac9766_mono_mux[] = {"Mix", "Mic"};
	59	static const char *stac9766_mic_mux[] = {"Mic1", "Mic2"};
	60	static const char *stac9766_SPDIF_mux[] = {"PCM", "ADC Record"};
	61	static const char *stac9766_popbypass_mux[] = {"Normal", "Bypass Mixer"};
05e1efa2 MB	62	static const char *stac9766_record_all_mux[] = {"All analog",
05e1efa2 MB	63	"Analog plus DAC"};
3c166c7f JS	64	static const char *stac9766_boost1[] = {"0dB", "10dB"};
	65	static const char *stac9766_boost2[] = {"0dB", "20dB"};
	66	static const char *stac9766_stereo_mic[] = {"Off", "On"};
	67
3cd7ca58 TI	68	static SOC_ENUM_DOUBLE_DECL(stac9766_record_enum,
	69	AC97_REC_SEL, 8, 0, stac9766_record_mux);
	70	static SOC_ENUM_SINGLE_DECL(stac9766_mono_enum,
	71	AC97_GENERAL_PURPOSE, 9, stac9766_mono_mux);
	72	static SOC_ENUM_SINGLE_DECL(stac9766_mic_enum,
	73	AC97_GENERAL_PURPOSE, 8, stac9766_mic_mux);
	74	static SOC_ENUM_SINGLE_DECL(stac9766_SPDIF_enum,
	75	AC97_STAC_DA_CONTROL, 1, stac9766_SPDIF_mux);
	76	static SOC_ENUM_SINGLE_DECL(stac9766_popbypass_enum,
	77	AC97_GENERAL_PURPOSE, 15, stac9766_popbypass_mux);
	78	static SOC_ENUM_SINGLE_DECL(stac9766_record_all_enum,
	79	AC97_STAC_ANALOG_SPECIAL, 12,
	80	stac9766_record_all_mux);
	81	static SOC_ENUM_SINGLE_DECL(stac9766_boost1_enum,
	82	AC97_MIC, 6, stac9766_boost1); /* 0/10dB */
	83	static SOC_ENUM_SINGLE_DECL(stac9766_boost2_enum,
	84	AC97_STAC_ANALOG_SPECIAL, 2, stac9766_boost2); /* 0/20dB */
	85	static SOC_ENUM_SINGLE_DECL(stac9766_stereo_mic_enum,
	86	AC97_STAC_STEREO_MIC, 2, stac9766_stereo_mic);
3c166c7f JS	87
	88	static const DECLARE_TLV_DB_LINEAR(master_tlv, -4600, 0);
	89	static const DECLARE_TLV_DB_LINEAR(record_tlv, 0, 2250);
	90	static const DECLARE_TLV_DB_LINEAR(beep_tlv, -4500, 0);
	91	static const DECLARE_TLV_DB_LINEAR(mix_tlv, -3450, 1200);
	92
	93	static const struct snd_kcontrol_new stac9766_snd_ac97_controls[] = {
	94	SOC_DOUBLE_TLV("Speaker Volume", AC97_MASTER, 8, 0, 31, 1, master_tlv),
	95	SOC_SINGLE("Speaker Switch", AC97_MASTER, 15, 1, 1),
05e1efa2 MB	96	SOC_DOUBLE_TLV("Headphone Volume", AC97_HEADPHONE, 8, 0, 31, 1,
05e1efa2 MB	97	master_tlv),
3c166c7f	98	SOC_SINGLE("Headphone Switch", AC97_HEADPHONE, 15, 1, 1),
05e1efa2 MB	99	SOC_SINGLE_TLV("Mono Out Volume", AC97_MASTER_MONO, 0, 31, 1,
05e1efa2 MB	100	master_tlv),
3c166c7f JS	101	SOC_SINGLE("Mono Out Switch", AC97_MASTER_MONO, 15, 1, 1),
	102
	103	SOC_DOUBLE_TLV("Record Volume", AC97_REC_GAIN, 8, 0, 15, 0, record_tlv),
	104	SOC_SINGLE("Record Switch", AC97_REC_GAIN, 15, 1, 1),
	105
	106
	107	SOC_SINGLE_TLV("Beep Volume", AC97_PC_BEEP, 1, 15, 1, beep_tlv),
	108	SOC_SINGLE("Beep Switch", AC97_PC_BEEP, 15, 1, 1),
	109	SOC_SINGLE("Beep Frequency", AC97_PC_BEEP, 5, 127, 1),
	110	SOC_SINGLE_TLV("Phone Volume", AC97_PHONE, 0, 31, 1, mix_tlv),
	111	SOC_SINGLE("Phone Switch", AC97_PHONE, 15, 1, 1),
	112
	113	SOC_ENUM("Mic Boost1", stac9766_boost1_enum),
	114	SOC_ENUM("Mic Boost2", stac9766_boost2_enum),
	115	SOC_SINGLE_TLV("Mic Volume", AC97_MIC, 0, 31, 1, mix_tlv),
	116	SOC_SINGLE("Mic Switch", AC97_MIC, 15, 1, 1),
	117	SOC_ENUM("Stereo Mic", stac9766_stereo_mic_enum),
	118
	119	SOC_DOUBLE_TLV("Line Volume", AC97_LINE, 8, 0, 31, 1, mix_tlv),
	120	SOC_SINGLE("Line Switch", AC97_LINE, 15, 1, 1),
	121	SOC_DOUBLE_TLV("CD Volume", AC97_CD, 8, 0, 31, 1, mix_tlv),
	122	SOC_SINGLE("CD Switch", AC97_CD, 15, 1, 1),
	123	SOC_DOUBLE_TLV("AUX Volume", AC97_AUX, 8, 0, 31, 1, mix_tlv),
	124	SOC_SINGLE("AUX Switch", AC97_AUX, 15, 1, 1),
	125	SOC_DOUBLE_TLV("Video Volume", AC97_VIDEO, 8, 0, 31, 1, mix_tlv),
	126	SOC_SINGLE("Video Switch", AC97_VIDEO, 15, 1, 1),
	127
	128	SOC_DOUBLE_TLV("DAC Volume", AC97_PCM, 8, 0, 31, 1, mix_tlv),
	129	SOC_SINGLE("DAC Switch", AC97_PCM, 15, 1, 1),
	130	SOC_SINGLE("Loopback Test Switch", AC97_GENERAL_PURPOSE, 7, 1, 0),
	131	SOC_SINGLE("3D Volume", AC97_3D_CONTROL, 3, 2, 1),
	132	SOC_SINGLE("3D Switch", AC97_GENERAL_PURPOSE, 13, 1, 0),
	133
	134	SOC_ENUM("SPDIF Mux", stac9766_SPDIF_enum),
	135	SOC_ENUM("Mic1/2 Mux", stac9766_mic_enum),
	136	SOC_ENUM("Record All Mux", stac9766_record_all_enum),
	137	SOC_ENUM("Record Mux", stac9766_record_enum),
	138	SOC_ENUM("Mono Mux", stac9766_mono_enum),
	139	SOC_ENUM("Pop Bypass Mux", stac9766_popbypass_enum),
	140	};
	141
05e1efa2 MB	142	static int stac9766_ac97_write(struct snd_soc_codec *codec, unsigned int reg,
05e1efa2 MB	143	unsigned int val)
3c166c7f	144	{
358a8bb5	145	struct snd_ac97 *ac97 = snd_soc_codec_get_drvdata(codec);
3c166c7f JS	146	u16 *cache = codec->reg_cache;
	147
	148	if (reg > AC97_STAC_PAGE0) {
	149	stac9766_ac97_write(codec, AC97_INT_PAGING, 0);
358a8bb5	150	soc_ac97_ops->write(ac97, reg, val);
3c166c7f JS	151	stac9766_ac97_write(codec, AC97_INT_PAGING, 1);
	152	return 0;
	153	}
33e319fb	154	if (reg / 2 >= ARRAY_SIZE(stac9766_reg))
3c166c7f JS	155	return -EIO;
3c166c7f JS	156
358a8bb5	157	soc_ac97_ops->write(ac97, reg, val);
3c166c7f JS	158	cache[reg / 2] = val;
	159	return 0;
	160	}
	161
05e1efa2 MB	162	static unsigned int stac9766_ac97_read(struct snd_soc_codec *codec,
05e1efa2 MB	163	unsigned int reg)
3c166c7f	164	{
358a8bb5	165	struct snd_ac97 *ac97 = snd_soc_codec_get_drvdata(codec);
3c166c7f JS	166	u16 val = 0, *cache = codec->reg_cache;
	167
	168	if (reg > AC97_STAC_PAGE0) {
	169	stac9766_ac97_write(codec, AC97_INT_PAGING, 0);
358a8bb5	170	val = soc_ac97_ops->read(ac97, reg - AC97_STAC_PAGE0);
3c166c7f JS	171	stac9766_ac97_write(codec, AC97_INT_PAGING, 1);
	172	return val;
	173	}
33e319fb	174	if (reg / 2 >= ARRAY_SIZE(stac9766_reg))
3c166c7f JS	175	return -EIO;
	176
	177	if (reg == AC97_RESET \|\| reg == AC97_GPIO_STATUS \|\|
	178	reg == AC97_INT_PAGING \|\| reg == AC97_VENDOR_ID1 \|\|
	179	reg == AC97_VENDOR_ID2) {
	180
358a8bb5	181	val = soc_ac97_ops->read(ac97, reg);
3c166c7f JS	182	return val;
	183	}
	184	return cache[reg / 2];
	185	}
	186
	187	static int ac97_analog_prepare(struct snd_pcm_substream *substream,
05e1efa2	188	struct snd_soc_dai *dai)
3c166c7f JS	189	{
	190	struct snd_soc_codec *codec = dai->codec;
	191	struct snd_pcm_runtime *runtime = substream->runtime;
	192	unsigned short reg, vra;
	193
	194	vra = stac9766_ac97_read(codec, AC97_EXTENDED_STATUS);
	195
	196	vra \|= 0x1; /* enable variable rate audio */
75b46c13	197	vra &= ~0x4; /* disable SPDIF output */
3c166c7f JS	198
	199	stac9766_ac97_write(codec, AC97_EXTENDED_STATUS, vra);
	200
	201	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
	202	reg = AC97_PCM_FRONT_DAC_RATE;
	203	else
	204	reg = AC97_PCM_LR_ADC_RATE;
	205
	206	return stac9766_ac97_write(codec, reg, runtime->rate);
	207	}
	208
	209	static int ac97_digital_prepare(struct snd_pcm_substream *substream,
05e1efa2	210	struct snd_soc_dai *dai)
3c166c7f JS	211	{
	212	struct snd_soc_codec *codec = dai->codec;
	213	struct snd_pcm_runtime *runtime = substream->runtime;
	214	unsigned short reg, vra;
	215
	216	stac9766_ac97_write(codec, AC97_SPDIF, 0x2002);
	217
	218	vra = stac9766_ac97_read(codec, AC97_EXTENDED_STATUS);
	219	vra \|= 0x5; /* Enable VRA and SPDIF out */
	220
	221	stac9766_ac97_write(codec, AC97_EXTENDED_STATUS, vra);
	222
	223	reg = AC97_PCM_FRONT_DAC_RATE;
	224
	225	return stac9766_ac97_write(codec, reg, runtime->rate);
	226	}
	227
3c166c7f	228	static int stac9766_set_bias_level(struct snd_soc_codec *codec,
05e1efa2	229	enum snd_soc_bias_level level)
3c166c7f JS	230	{
	231	switch (level) {
	232	case SND_SOC_BIAS_ON: /* full On */
	233	case SND_SOC_BIAS_PREPARE: /* partial On */
	234	case SND_SOC_BIAS_STANDBY: /* Off, with power */
	235	stac9766_ac97_write(codec, AC97_POWERDOWN, 0x0000);
	236	break;
	237	case SND_SOC_BIAS_OFF: /* Off, without power */
	238	/* disable everything including AC link */
	239	stac9766_ac97_write(codec, AC97_POWERDOWN, 0xffff);
	240	break;
	241	}
3c166c7f JS	242	return 0;
	243	}
	244
f0fba2ad	245	static int stac9766_codec_resume(struct snd_soc_codec *codec)
3c166c7f	246	{
358a8bb5	247	struct snd_ac97 *ac97 = snd_soc_codec_get_drvdata(codec);
3c166c7f	248
017e800a LPC	249	return snd_ac97_reset(ac97, true, STAC9766_VENDOR_ID,
017e800a LPC	250	STAC9766_VENDOR_ID_MASK);
3c166c7f JS	251	}
3c166c7f JS	252
85e7652d	253	static const struct snd_soc_dai_ops stac9766_dai_ops_analog = {
3c166c7f JS	254	.prepare = ac97_analog_prepare,
	255	};
	256
85e7652d	257	static const struct snd_soc_dai_ops stac9766_dai_ops_digital = {
3c166c7f	258	.prepare = ac97_digital_prepare,
3c166c7f JS	259	};
3c166c7f JS	260
f0fba2ad	261	static struct snd_soc_dai_driver stac9766_dai[] = {
3c166c7f	262	{
f0fba2ad	263	.name = "stac9766-hifi-analog",
3c166c7f JS	264
	265	/* stream cababilities */
	266	.playback = {
	267	.stream_name = "stac9766 analog",
	268	.channels_min = 1,
	269	.channels_max = 2,
	270	.rates = SNDRV_PCM_RATE_8000_48000,
	271	.formats = SND_SOC_STD_AC97_FMTS,
	272	},
	273	.capture = {
	274	.stream_name = "stac9766 analog",
	275	.channels_min = 1,
	276	.channels_max = 2,
	277	.rates = SNDRV_PCM_RATE_8000_48000,
	278	.formats = SND_SOC_STD_AC97_FMTS,
	279	},
	280	/* alsa ops */
	281	.ops = &stac9766_dai_ops_analog,
	282	},
	283	{
f0fba2ad	284	.name = "stac9766-hifi-IEC958",
3c166c7f JS	285
	286	/* stream cababilities */
	287	.playback = {
	288	.stream_name = "stac9766 IEC958",
	289	.channels_min = 1,
	290	.channels_max = 2,
	291	.rates = SNDRV_PCM_RATE_32000 \| \
	292	SNDRV_PCM_RATE_44100 \| SNDRV_PCM_RATE_48000,
e712bfca	293	.formats = SNDRV_PCM_FMTBIT_IEC958_SUBFRAME_BE,
3c166c7f JS	294	},
	295	/* alsa ops */
	296	.ops = &stac9766_dai_ops_digital,
05e1efa2 MB	297	}
05e1efa2 MB	298	};
3c166c7f	299
f0fba2ad	300	static int stac9766_codec_probe(struct snd_soc_codec *codec)
3c166c7f	301	{
358a8bb5	302	struct snd_ac97 *ac97;
3c166c7f	303
017e800a LPC	304	ac97 = snd_soc_new_ac97_codec(codec, STAC9766_VENDOR_ID,
017e800a LPC	305	STAC9766_VENDOR_ID_MASK);
358a8bb5 LPC	306	if (IS_ERR(ac97))
	307	return PTR_ERR(ac97);
	308
	309	snd_soc_codec_set_drvdata(codec, ac97);
3c166c7f	310
3c166c7f	311	return 0;
3c166c7f JS	312	}
3c166c7f JS	313
f0fba2ad	314	static int stac9766_codec_remove(struct snd_soc_codec *codec)
3c166c7f	315	{
358a8bb5 LPC	316	struct snd_ac97 *ac97 = snd_soc_codec_get_drvdata(codec);
	317
	318	snd_soc_free_ac97_codec(ac97);
3c166c7f JS	319	return 0;
	320	}
	321
f0fba2ad	322	static struct snd_soc_codec_driver soc_codec_dev_stac9766 = {
70e710d6 KM	323	.component_driver = {
	324	.controls = stac9766_snd_ac97_controls,
	325	.num_controls = ARRAY_SIZE(stac9766_snd_ac97_controls),
	326	},
f0fba2ad LG	327	.write = stac9766_ac97_write,
	328	.read = stac9766_ac97_read,
	329	.set_bias_level = stac9766_set_bias_level,
4c07a43d	330	.suspend_bias_off = true,
3c166c7f JS	331	.probe = stac9766_codec_probe,
3c166c7f JS	332	.remove = stac9766_codec_remove,
3c166c7f	333	.resume = stac9766_codec_resume,
f031efe9	334	.reg_cache_size = ARRAY_SIZE(stac9766_reg),
f0fba2ad LG	335	.reg_word_size = sizeof(u16),
f0fba2ad LG	336	.reg_cache_step = 2,
13a2e06c	337	.reg_cache_default = stac9766_reg,
f0fba2ad LG	338	};
f0fba2ad LG	339
7a79e94e	340	static int stac9766_probe(struct platform_device *pdev)
f0fba2ad LG	341	{
	342	return snd_soc_register_codec(&pdev->dev,
	343	&soc_codec_dev_stac9766, stac9766_dai, ARRAY_SIZE(stac9766_dai));
	344	}
	345
7a79e94e	346	static int stac9766_remove(struct platform_device *pdev)
f0fba2ad LG	347	{
	348	snd_soc_unregister_codec(&pdev->dev);
	349	return 0;
	350	}
	351
	352	static struct platform_driver stac9766_codec_driver = {
	353	.driver = {
	354	.name = "stac9766-codec",
f0fba2ad LG	355	},
	356
	357	.probe = stac9766_probe,
7a79e94e	358	.remove = stac9766_remove,
3c166c7f	359	};
f0fba2ad	360
5bbcc3c0	361	module_platform_driver(stac9766_codec_driver);
3c166c7f	362
3c166c7f JS	363	MODULE_DESCRIPTION("ASoC stac9766 driver");
	364	MODULE_AUTHOR("Jon Smirl <jonsmirl@gmail.com>");
	365	MODULE_LICENSE("GPL");