[deliverable/linux.git] / sound / soc / codecs / wm9705.c

/*
 * wm9705.c  --  ALSA Soc WM9705 codec support
 *
 * Copyright 2008 Ian Molton <spyro@f2s.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; Version 2 of the  License only.
 *
 */

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

#include "wm9705.h"

/*
 * WM9705 register cache
 */
static const u16 wm9705_reg[] = {
	0x6150, 0x8000, 0x8000, 0x8000, /* 0x0  */
	0x0000, 0x8000, 0x8008, 0x8008, /* 0x8  */
	0x8808, 0x8808, 0x8808, 0x8808, /* 0x10 */
	0x8808, 0x0000, 0x8000, 0x0000, /* 0x18 */
	0x0000, 0x0000, 0x0000, 0x000f, /* 0x20 */
	0x0605, 0x0000, 0xbb80, 0x0000, /* 0x28 */
	0x0000, 0xbb80, 0x0000, 0x0000, /* 0x30 */
	0x0000, 0x2000, 0x0000, 0x0000, /* 0x38 */
	0x0000, 0x0000, 0x0000, 0x0000, /* 0x40 */
	0x0000, 0x0000, 0x0000, 0x0000, /* 0x48 */
	0x0000, 0x0000, 0x0000, 0x0000, /* 0x50 */
	0x0000, 0x0000, 0x0000, 0x0000, /* 0x58 */
	0x0000, 0x0000, 0x0000, 0x0000, /* 0x60 */
	0x0000, 0x0000, 0x0000, 0x0000, /* 0x68 */
	0x0000, 0x0808, 0x0000, 0x0006, /* 0x70 */
	0x0000, 0x0000, 0x574d, 0x4c05, /* 0x78 */
};

static const struct snd_kcontrol_new wm9705_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_SINGLE("Mono Playback Volume", AC97_MASTER_MONO, 0, 31, 1),
	SOC_SINGLE("Mono Playback Switch", AC97_MASTER_MONO, 15, 1, 1),
	SOC_SINGLE("PCBeep Playback Volume", AC97_PC_BEEP, 1, 15, 1),
	SOC_SINGLE("Phone Playback Volume", AC97_PHONE, 0, 31, 1),
	SOC_DOUBLE("Line Playback Volume", AC97_LINE, 8, 0, 31, 1),
	SOC_DOUBLE("CD Playback Volume", AC97_CD, 8, 0, 31, 1),
	SOC_SINGLE("Mic Playback Volume", AC97_MIC, 0, 31, 1),
	SOC_SINGLE("Mic 20dB Boost Switch", AC97_MIC, 6, 1, 0),
	SOC_DOUBLE("Capture Volume", AC97_REC_GAIN, 8, 0, 15, 0),
	SOC_SINGLE("Capture Switch", AC97_REC_GAIN, 15, 1, 1),
};

static const char *wm9705_mic[] = {"Mic 1", "Mic 2"};
static const char *wm9705_rec_sel[] = {"Mic", "CD", "NC", "NC",
	"Line", "Stereo Mix", "Mono Mix", "Phone"};

static const struct soc_enum wm9705_enum_mic =
	SOC_ENUM_SINGLE(AC97_GENERAL_PURPOSE, 8, 2, wm9705_mic);
static const struct soc_enum wm9705_enum_rec_l =
	SOC_ENUM_SINGLE(AC97_REC_SEL, 8, 8, wm9705_rec_sel);
static const struct soc_enum wm9705_enum_rec_r =
	SOC_ENUM_SINGLE(AC97_REC_SEL, 0, 8, wm9705_rec_sel);

/* Headphone Mixer */
static const struct snd_kcontrol_new wm9705_hp_mixer_controls[] = {
	SOC_DAPM_SINGLE("PCBeep Playback Switch", AC97_PC_BEEP, 15, 1, 1),
	SOC_DAPM_SINGLE("CD Playback Switch", AC97_CD, 15, 1, 1),
	SOC_DAPM_SINGLE("Mic Playback Switch", AC97_MIC, 15, 1, 1),
	SOC_DAPM_SINGLE("Phone Playback Switch", AC97_PHONE, 15, 1, 1),
	SOC_DAPM_SINGLE("Line Playback Switch", AC97_LINE, 15, 1, 1),
};

/* Mic source */
static const struct snd_kcontrol_new wm9705_mic_src_controls =
	SOC_DAPM_ENUM("Route", wm9705_enum_mic);

/* Capture source */
static const struct snd_kcontrol_new wm9705_capture_selectl_controls =
	SOC_DAPM_ENUM("Route", wm9705_enum_rec_l);
static const struct snd_kcontrol_new wm9705_capture_selectr_controls =
	SOC_DAPM_ENUM("Route", wm9705_enum_rec_r);

/* DAPM widgets */
static const struct snd_soc_dapm_widget wm9705_dapm_widgets[] = {
	SND_SOC_DAPM_MUX("Mic Source", SND_SOC_NOPM, 0, 0,
		&wm9705_mic_src_controls),
	SND_SOC_DAPM_MUX("Left Capture Source", SND_SOC_NOPM, 0, 0,
		&wm9705_capture_selectl_controls),
	SND_SOC_DAPM_MUX("Right Capture Source", SND_SOC_NOPM, 0, 0,
		&wm9705_capture_selectr_controls),
	SND_SOC_DAPM_DAC("Left DAC", "Left HiFi Playback",
		SND_SOC_NOPM, 0, 0),
	SND_SOC_DAPM_DAC("Right DAC", "Right HiFi Playback",
		SND_SOC_NOPM, 0, 0),
	SND_SOC_DAPM_MIXER_NAMED_CTL("HP Mixer", SND_SOC_NOPM, 0, 0,
		&wm9705_hp_mixer_controls[0],
		ARRAY_SIZE(wm9705_hp_mixer_controls)),
	SND_SOC_DAPM_MIXER("Mono Mixer", SND_SOC_NOPM, 0, 0, NULL, 0),
	SND_SOC_DAPM_ADC("Left ADC", "Left HiFi Capture", SND_SOC_NOPM, 0, 0),
	SND_SOC_DAPM_ADC("Right ADC", "Right HiFi Capture", SND_SOC_NOPM, 0, 0),
	SND_SOC_DAPM_PGA("Headphone PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
	SND_SOC_DAPM_PGA("Speaker PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
	SND_SOC_DAPM_PGA("Line PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
	SND_SOC_DAPM_PGA("Line out PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
	SND_SOC_DAPM_PGA("Mono PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
	SND_SOC_DAPM_PGA("Phone PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
	SND_SOC_DAPM_PGA("Mic PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
	SND_SOC_DAPM_PGA("PCBEEP PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
	SND_SOC_DAPM_PGA("CD PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
	SND_SOC_DAPM_PGA("ADC PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
	SND_SOC_DAPM_OUTPUT("HPOUTL"),
	SND_SOC_DAPM_OUTPUT("HPOUTR"),
	SND_SOC_DAPM_OUTPUT("LOUT"),
	SND_SOC_DAPM_OUTPUT("ROUT"),
	SND_SOC_DAPM_OUTPUT("MONOOUT"),
	SND_SOC_DAPM_INPUT("PHONE"),
	SND_SOC_DAPM_INPUT("LINEINL"),
	SND_SOC_DAPM_INPUT("LINEINR"),
	SND_SOC_DAPM_INPUT("CDINL"),
	SND_SOC_DAPM_INPUT("CDINR"),
	SND_SOC_DAPM_INPUT("PCBEEP"),
	SND_SOC_DAPM_INPUT("MIC1"),
	SND_SOC_DAPM_INPUT("MIC2"),
};

/* Audio map
 * WM9705 has no switches to disable the route from the inputs to the HP mixer
 * so in order to prevent active inputs from forcing the audio outputs to be
 * constantly enabled, we use the mutes on those inputs to simulate such
 * controls.
 */
static const struct snd_soc_dapm_route audio_map[] = {
	/* HP mixer */
	{"HP Mixer", "PCBeep Playback Switch", "PCBEEP PGA"},
	{"HP Mixer", "CD Playback Switch", "CD PGA"},
	{"HP Mixer", "Mic Playback Switch", "Mic PGA"},
	{"HP Mixer", "Phone Playback Switch", "Phone PGA"},
	{"HP Mixer", "Line Playback Switch", "Line PGA"},
	{"HP Mixer", NULL, "Left DAC"},
	{"HP Mixer", NULL, "Right DAC"},

	/* mono mixer */
	{"Mono Mixer", NULL, "HP Mixer"},

	/* outputs */
	{"Headphone PGA", NULL, "HP Mixer"},
	{"HPOUTL", NULL, "Headphone PGA"},
	{"HPOUTR", NULL, "Headphone PGA"},
	{"Line out PGA", NULL, "HP Mixer"},
	{"LOUT", NULL, "Line out PGA"},
	{"ROUT", NULL, "Line out PGA"},
	{"Mono PGA", NULL, "Mono Mixer"},
	{"MONOOUT", NULL, "Mono PGA"},

	/* inputs */
	{"CD PGA", NULL, "CDINL"},
	{"CD PGA", NULL, "CDINR"},
	{"Line PGA", NULL, "LINEINL"},
	{"Line PGA", NULL, "LINEINR"},
	{"Phone PGA", NULL, "PHONE"},
	{"Mic Source", "Mic 1", "MIC1"},
	{"Mic Source", "Mic 2", "MIC2"},
	{"Mic PGA", NULL, "Mic Source"},
	{"PCBEEP PGA", NULL, "PCBEEP"},

	/* Left capture selector */
	{"Left Capture Source", "Mic", "Mic Source"},
	{"Left Capture Source", "CD", "CDINL"},
	{"Left Capture Source", "Line", "LINEINL"},
	{"Left Capture Source", "Stereo Mix", "HP Mixer"},
	{"Left Capture Source", "Mono Mix", "HP Mixer"},
	{"Left Capture Source", "Phone", "PHONE"},

	/* Right capture source */
	{"Right Capture Source", "Mic", "Mic Source"},
	{"Right Capture Source", "CD", "CDINR"},
	{"Right Capture Source", "Line", "LINEINR"},
	{"Right Capture Source", "Stereo Mix", "HP Mixer"},
	{"Right Capture Source", "Mono Mix", "HP Mixer"},
	{"Right Capture Source", "Phone", "PHONE"},

	{"ADC PGA", NULL, "Left Capture Source"},
	{"ADC PGA", NULL, "Right Capture Source"},

	/* ADC's */
	{"Left ADC",  NULL, "ADC PGA"},
	{"Right ADC", NULL, "ADC PGA"},
};

static int wm9705_add_widgets(struct snd_soc_codec *codec)
{
	struct snd_soc_dapm_context *dapm = &codec->dapm;

	snd_soc_dapm_new_controls(dapm, wm9705_dapm_widgets,
					ARRAY_SIZE(wm9705_dapm_widgets));
	snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));

	return 0;
}

/* We use a register cache to enhance read performance. */
static unsigned int ac97_read(struct snd_soc_codec *codec, unsigned int reg)
{
	u16 *cache = codec->reg_cache;

	switch (reg) {
	case AC97_RESET:
	case AC97_VENDOR_ID1:
	case AC97_VENDOR_ID2:
		return soc_ac97_ops.read(codec->ac97, reg);
	default:
		reg = reg >> 1;

		if (reg >= (ARRAY_SIZE(wm9705_reg)))
			return -EIO;

		return cache[reg];
	}
}

static int ac97_write(struct snd_soc_codec *codec, unsigned int reg,
	unsigned int val)
{
	u16 *cache = codec->reg_cache;

	soc_ac97_ops.write(codec->ac97, reg, val);
	reg = reg >> 1;
	if (reg < (ARRAY_SIZE(wm9705_reg)))
		cache[reg] = val;

	return 0;
}

static int ac97_prepare(struct snd_pcm_substream *substream,
			struct snd_soc_dai *dai)
{
	struct snd_pcm_runtime *runtime = substream->runtime;
	struct snd_soc_pcm_runtime *rtd = substream->private_data;
	struct snd_soc_codec *codec = rtd->codec;
	int reg;
	u16 vra;

	vra = ac97_read(codec, AC97_EXTENDED_STATUS);
	ac97_write(codec, AC97_EXTENDED_STATUS, vra | 0x1);

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

	return ac97_write(codec, reg, runtime->rate);
}

#define WM9705_AC97_RATES (SNDRV_PCM_RATE_8000 | SNDRV_PCM_RATE_11025 | \
			SNDRV_PCM_RATE_16000 | SNDRV_PCM_RATE_22050 | \
			SNDRV_PCM_RATE_32000 | SNDRV_PCM_RATE_44100 | \
			SNDRV_PCM_RATE_48000)

static struct snd_soc_dai_ops wm9705_dai_ops = {
	.prepare	= ac97_prepare,
};

static struct snd_soc_dai_driver wm9705_dai[] = {
	{
		.name = "wm9705-hifi",
		.ac97_control = 1,
		.playback = {
			.stream_name = "HiFi Playback",
			.channels_min = 1,
			.channels_max = 2,
			.rates = WM9705_AC97_RATES,
			.formats = SND_SOC_STD_AC97_FMTS,
		},
		.capture = {
			.stream_name = "HiFi Capture",
			.channels_min = 1,
			.channels_max = 2,
			.rates = WM9705_AC97_RATES,
			.formats = SND_SOC_STD_AC97_FMTS,
		},
		.ops = &wm9705_dai_ops,
	},
	{
		.name = "wm9705-aux",
		.playback = {
			.stream_name = "Aux Playback",
			.channels_min = 1,
			.channels_max = 1,
			.rates = WM9705_AC97_RATES,
			.formats = SNDRV_PCM_FMTBIT_S16_LE,
		},
	}
};

static int wm9705_reset(struct snd_soc_codec *codec)
{
	if (soc_ac97_ops.reset) {
		soc_ac97_ops.reset(codec->ac97);
		if (ac97_read(codec, 0) == wm9705_reg[0])
			return 0; /* Success */
	}

	return -EIO;
}

#ifdef CONFIG_PM
static int wm9705_soc_suspend(struct snd_soc_codec *codec, pm_message_t msg)
{
	soc_ac97_ops.write(codec->ac97, AC97_POWERDOWN, 0xffff);

	return 0;
}

static int wm9705_soc_resume(struct snd_soc_codec *codec)
{
	int i, ret;
	u16 *cache = codec->reg_cache;

	ret = wm9705_reset(codec);
	if (ret < 0) {
		printk(KERN_ERR "could not reset AC97 codec\n");
		return ret;
	}

	for (i = 2; i < ARRAY_SIZE(wm9705_reg) << 1; i += 2) {
		soc_ac97_ops.write(codec->ac97, i, cache[i>>1]);
	}

	return 0;
}
#else
#define wm9705_soc_suspend NULL
#define wm9705_soc_resume NULL
#endif

static int wm9705_soc_probe(struct snd_soc_codec *codec)
{
	int ret = 0;

	printk(KERN_INFO "WM9705 SoC Audio Codec\n");

	ret = snd_soc_new_ac97_codec(codec, &soc_ac97_ops, 0);
	if (ret < 0) {
		printk(KERN_ERR "wm9705: failed to register AC97 codec\n");
		return ret;
	}

	ret = wm9705_reset(codec);
	if (ret)
		goto reset_err;

	snd_soc_add_controls(codec, wm9705_snd_ac97_controls,
				ARRAY_SIZE(wm9705_snd_ac97_controls));
	wm9705_add_widgets(codec);

	return 0;

reset_err:
	snd_soc_free_ac97_codec(codec);
	return ret;
}

static int wm9705_soc_remove(struct snd_soc_codec *codec)
{
	snd_soc_free_ac97_codec(codec);
	return 0;
}

static struct snd_soc_codec_driver soc_codec_dev_wm9705 = {
	.probe = 	wm9705_soc_probe,
	.remove = 	wm9705_soc_remove,
	.suspend =	wm9705_soc_suspend,
	.resume =	wm9705_soc_resume,
	.read = ac97_read,
	.write = ac97_write,
	.reg_cache_size = ARRAY_SIZE(wm9705_reg),
	.reg_word_size = sizeof(u16),
	.reg_cache_step = 2,
	.reg_cache_default = wm9705_reg,
};

static __devinit int wm9705_probe(struct platform_device *pdev)
{
	return snd_soc_register_codec(&pdev->dev,
			&soc_codec_dev_wm9705, wm9705_dai, ARRAY_SIZE(wm9705_dai));
}

static int __devexit wm9705_remove(struct platform_device *pdev)
{
	snd_soc_unregister_codec(&pdev->dev);
	return 0;
}

static struct platform_driver wm9705_codec_driver = {
	.driver = {
			.name = "wm9705-codec",
			.owner = THIS_MODULE,
	},

	.probe = wm9705_probe,
	.remove = __devexit_p(wm9705_remove),
};

static int __init wm9705_init(void)
{
	return platform_driver_register(&wm9705_codec_driver);
}
module_init(wm9705_init);

static void __exit wm9705_exit(void)
{
	platform_driver_unregister(&wm9705_codec_driver);
}
module_exit(wm9705_exit);

MODULE_DESCRIPTION("ASoC WM9705 driver");
MODULE_AUTHOR("Ian Molton");
MODULE_LICENSE("GPL v2");
Commit	Line	Data
2aceefef IM	1	/*
	2	* wm9705.c -- ALSA Soc WM9705 codec support
	3	*
	4	* Copyright 2008 Ian Molton <spyro@f2s.com>
	5	*
	6	* This program is free software; you can redistribute it and/or modify it
	7	* under the terms of the GNU General Public License as published by the
	8	* Free Software Foundation; Version 2 of the License only.
	9	*
	10	*/
	11
	12	#include <linux/init.h>
5a0e3ad6	13	#include <linux/slab.h>
2aceefef IM	14	#include <linux/module.h>
	15	#include <linux/kernel.h>
	16	#include <linux/device.h>
	17	#include <sound/core.h>
	18	#include <sound/pcm.h>
	19	#include <sound/ac97_codec.h>
	20	#include <sound/initval.h>
	21	#include <sound/soc.h>
2aceefef	22
01e097d6 MB	23	#include "wm9705.h"
01e097d6 MB	24
2aceefef IM	25	/*
	26	* WM9705 register cache
	27	*/
	28	static const u16 wm9705_reg[] = {
	29	0x6150, 0x8000, 0x8000, 0x8000, /* 0x0 */
	30	0x0000, 0x8000, 0x8008, 0x8008, /* 0x8 */
	31	0x8808, 0x8808, 0x8808, 0x8808, /* 0x10 */
	32	0x8808, 0x0000, 0x8000, 0x0000, /* 0x18 */
	33	0x0000, 0x0000, 0x0000, 0x000f, /* 0x20 */
	34	0x0605, 0x0000, 0xbb80, 0x0000, /* 0x28 */
	35	0x0000, 0xbb80, 0x0000, 0x0000, /* 0x30 */
	36	0x0000, 0x2000, 0x0000, 0x0000, /* 0x38 */
	37	0x0000, 0x0000, 0x0000, 0x0000, /* 0x40 */
	38	0x0000, 0x0000, 0x0000, 0x0000, /* 0x48 */
	39	0x0000, 0x0000, 0x0000, 0x0000, /* 0x50 */
	40	0x0000, 0x0000, 0x0000, 0x0000, /* 0x58 */
	41	0x0000, 0x0000, 0x0000, 0x0000, /* 0x60 */
	42	0x0000, 0x0000, 0x0000, 0x0000, /* 0x68 */
	43	0x0000, 0x0808, 0x0000, 0x0006, /* 0x70 */
	44	0x0000, 0x0000, 0x574d, 0x4c05, /* 0x78 */
	45	};
	46
	47	static const struct snd_kcontrol_new wm9705_snd_ac97_controls[] = {
	48	SOC_DOUBLE("Master Playback Volume", AC97_MASTER, 8, 0, 31, 1),
	49	SOC_SINGLE("Master Playback Switch", AC97_MASTER, 15, 1, 1),
	50	SOC_DOUBLE("Headphone Playback Volume", AC97_HEADPHONE, 8, 0, 31, 1),
	51	SOC_SINGLE("Headphone Playback Switch", AC97_HEADPHONE, 15, 1, 1),
	52	SOC_DOUBLE("PCM Playback Volume", AC97_PCM, 8, 0, 31, 1),
	53	SOC_SINGLE("PCM Playback Switch", AC97_PCM, 15, 1, 1),
	54	SOC_SINGLE("Mono Playback Volume", AC97_MASTER_MONO, 0, 31, 1),
	55	SOC_SINGLE("Mono Playback Switch", AC97_MASTER_MONO, 15, 1, 1),
	56	SOC_SINGLE("PCBeep Playback Volume", AC97_PC_BEEP, 1, 15, 1),
	57	SOC_SINGLE("Phone Playback Volume", AC97_PHONE, 0, 31, 1),
	58	SOC_DOUBLE("Line Playback Volume", AC97_LINE, 8, 0, 31, 1),
	59	SOC_DOUBLE("CD Playback Volume", AC97_CD, 8, 0, 31, 1),
	60	SOC_SINGLE("Mic Playback Volume", AC97_MIC, 0, 31, 1),
	61	SOC_SINGLE("Mic 20dB Boost Switch", AC97_MIC, 6, 1, 0),
927b0aea IM	62	SOC_DOUBLE("Capture Volume", AC97_REC_GAIN, 8, 0, 15, 0),
927b0aea IM	63	SOC_SINGLE("Capture Switch", AC97_REC_GAIN, 15, 1, 1),
2aceefef IM	64	};
	65
	66	static const char *wm9705_mic[] = {"Mic 1", "Mic 2"};
	67	static const char *wm9705_rec_sel[] = {"Mic", "CD", "NC", "NC",
	68	"Line", "Stereo Mix", "Mono Mix", "Phone"};
	69
	70	static const struct soc_enum wm9705_enum_mic =
	71	SOC_ENUM_SINGLE(AC97_GENERAL_PURPOSE, 8, 2, wm9705_mic);
	72	static const struct soc_enum wm9705_enum_rec_l =
	73	SOC_ENUM_SINGLE(AC97_REC_SEL, 8, 8, wm9705_rec_sel);
	74	static const struct soc_enum wm9705_enum_rec_r =
	75	SOC_ENUM_SINGLE(AC97_REC_SEL, 0, 8, wm9705_rec_sel);
	76
	77	/* Headphone Mixer */
	78	static const struct snd_kcontrol_new wm9705_hp_mixer_controls[] = {
	79	SOC_DAPM_SINGLE("PCBeep Playback Switch", AC97_PC_BEEP, 15, 1, 1),
	80	SOC_DAPM_SINGLE("CD Playback Switch", AC97_CD, 15, 1, 1),
	81	SOC_DAPM_SINGLE("Mic Playback Switch", AC97_MIC, 15, 1, 1),
	82	SOC_DAPM_SINGLE("Phone Playback Switch", AC97_PHONE, 15, 1, 1),
	83	SOC_DAPM_SINGLE("Line Playback Switch", AC97_LINE, 15, 1, 1),
	84	};
	85
	86	/* Mic source */
	87	static const struct snd_kcontrol_new wm9705_mic_src_controls =
	88	SOC_DAPM_ENUM("Route", wm9705_enum_mic);
	89
	90	/* Capture source */
	91	static const struct snd_kcontrol_new wm9705_capture_selectl_controls =
	92	SOC_DAPM_ENUM("Route", wm9705_enum_rec_l);
	93	static const struct snd_kcontrol_new wm9705_capture_selectr_controls =
	94	SOC_DAPM_ENUM("Route", wm9705_enum_rec_r);
	95
	96	/* DAPM widgets */
	97	static const struct snd_soc_dapm_widget wm9705_dapm_widgets[] = {
	98	SND_SOC_DAPM_MUX("Mic Source", SND_SOC_NOPM, 0, 0,
	99	&wm9705_mic_src_controls),
	100	SND_SOC_DAPM_MUX("Left Capture Source", SND_SOC_NOPM, 0, 0,
	101	&wm9705_capture_selectl_controls),
	102	SND_SOC_DAPM_MUX("Right Capture Source", SND_SOC_NOPM, 0, 0,
	103	&wm9705_capture_selectr_controls),
	104	SND_SOC_DAPM_DAC("Left DAC", "Left HiFi Playback",
	105	SND_SOC_NOPM, 0, 0),
	106	SND_SOC_DAPM_DAC("Right DAC", "Right HiFi Playback",
	107	SND_SOC_NOPM, 0, 0),
	108	SND_SOC_DAPM_MIXER_NAMED_CTL("HP Mixer", SND_SOC_NOPM, 0, 0,
	109	&wm9705_hp_mixer_controls[0],
	110	ARRAY_SIZE(wm9705_hp_mixer_controls)),
	111	SND_SOC_DAPM_MIXER("Mono Mixer", SND_SOC_NOPM, 0, 0, NULL, 0),
	112	SND_SOC_DAPM_ADC("Left ADC", "Left HiFi Capture", SND_SOC_NOPM, 0, 0),
	113	SND_SOC_DAPM_ADC("Right ADC", "Right HiFi Capture", SND_SOC_NOPM, 0, 0),
	114	SND_SOC_DAPM_PGA("Headphone PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
	115	SND_SOC_DAPM_PGA("Speaker PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
	116	SND_SOC_DAPM_PGA("Line PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
	117	SND_SOC_DAPM_PGA("Line out PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
	118	SND_SOC_DAPM_PGA("Mono PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
	119	SND_SOC_DAPM_PGA("Phone PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
	120	SND_SOC_DAPM_PGA("Mic PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
	121	SND_SOC_DAPM_PGA("PCBEEP PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
	122	SND_SOC_DAPM_PGA("CD PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
	123	SND_SOC_DAPM_PGA("ADC PGA", SND_SOC_NOPM, 0, 0, NULL, 0),
	124	SND_SOC_DAPM_OUTPUT("HPOUTL"),
	125	SND_SOC_DAPM_OUTPUT("HPOUTR"),
	126	SND_SOC_DAPM_OUTPUT("LOUT"),
	127	SND_SOC_DAPM_OUTPUT("ROUT"),
128	SND_SOC_DAPM_OUTPUT("MONOOUT"),
129	SND_SOC_DAPM_INPUT("PHONE"),
130	SND_SOC_DAPM_INPUT("LINEINL"),
131	SND_SOC_DAPM_INPUT("LINEINR"),
132	SND_SOC_DAPM_INPUT("CDINL"),
133	SND_SOC_DAPM_INPUT("CDINR"),
134	SND_SOC_DAPM_INPUT("PCBEEP"),
135	SND_SOC_DAPM_INPUT("MIC1"),
136	SND_SOC_DAPM_INPUT("MIC2"),
137	};
138
139	/* Audio map
140	* WM9705 has no switches to disable the route from the inputs to the HP mixer
141	* so in order to prevent active inputs from forcing the audio outputs to be
142	* constantly enabled, we use the mutes on those inputs to simulate such
143	* controls.
144	*/
145	static const struct snd_soc_dapm_route audio_map[] = {
146	/* HP mixer */
147	{"HP Mixer", "PCBeep Playback Switch", "PCBEEP PGA"},
148	{"HP Mixer", "CD Playback Switch", "CD PGA"},
149	{"HP Mixer", "Mic Playback Switch", "Mic PGA"},
150	{"HP Mixer", "Phone Playback Switch", "Phone PGA"},
151	{"HP Mixer", "Line Playback Switch", "Line PGA"},
152	{"HP Mixer", NULL, "Left DAC"},
153	{"HP Mixer", NULL, "Right DAC"},
154
155	/* mono mixer */
156	{"Mono Mixer", NULL, "HP Mixer"},
157
158	/* outputs */
159	{"Headphone PGA", NULL, "HP Mixer"},
160	{"HPOUTL", NULL, "Headphone PGA"},
161	{"HPOUTR", NULL, "Headphone PGA"},
162	{"Line out PGA", NULL, "HP Mixer"},
163	{"LOUT", NULL, "Line out PGA"},
164	{"ROUT", NULL, "Line out PGA"},
165	{"Mono PGA", NULL, "Mono Mixer"},
166	{"MONOOUT", NULL, "Mono PGA"},
167
168	/* inputs */
169	{"CD PGA", NULL, "CDINL"},
170	{"CD PGA", NULL, "CDINR"},
171	{"Line PGA", NULL, "LINEINL"},
172	{"Line PGA", NULL, "LINEINR"},
173	{"Phone PGA", NULL, "PHONE"},
174	{"Mic Source", "Mic 1", "MIC1"},
175	{"Mic Source", "Mic 2", "MIC2"},
176	{"Mic PGA", NULL, "Mic Source"},
177	{"PCBEEP PGA", NULL, "PCBEEP"},
178
179	/* Left capture selector */
180	{"Left Capture Source", "Mic", "Mic Source"},
181	{"Left Capture Source", "CD", "CDINL"},
182	{"Left Capture Source", "Line", "LINEINL"},
183	{"Left Capture Source", "Stereo Mix", "HP Mixer"},
184	{"Left Capture Source", "Mono Mix", "HP Mixer"},
185	{"Left Capture Source", "Phone", "PHONE"},
186
187	/* Right capture source */
188	{"Right Capture Source", "Mic", "Mic Source"},
189	{"Right Capture Source", "CD", "CDINR"},
190	{"Right Capture Source", "Line", "LINEINR"},
191	{"Right Capture Source", "Stereo Mix", "HP Mixer"},
192	{"Right Capture Source", "Mono Mix", "HP Mixer"},
193	{"Right Capture Source", "Phone", "PHONE"},
194
195	{"ADC PGA", NULL, "Left Capture Source"},
196	{"ADC PGA", NULL, "Right Capture Source"},
197
198	/* ADC's */
199	{"Left ADC", NULL, "ADC PGA"},
200	{"Right ADC", NULL, "ADC PGA"},
201	};
202
203	static int wm9705_add_widgets(struct snd_soc_codec *codec)
204	{
ce6120cc LG	205	struct snd_soc_dapm_context *dapm = &codec->dapm;
	206
	207	snd_soc_dapm_new_controls(dapm, wm9705_dapm_widgets,
2aceefef	208	ARRAY_SIZE(wm9705_dapm_widgets));
ce6120cc	209	snd_soc_dapm_add_routes(dapm, audio_map, ARRAY_SIZE(audio_map));
2aceefef IM	210
	211	return 0;
	212	}
	213
	214	/* We use a register cache to enhance read performance. */
	215	static unsigned int ac97_read(struct snd_soc_codec *codec, unsigned int reg)
	216	{
	217	u16 *cache = codec->reg_cache;
	218
	219	switch (reg) {
	220	case AC97_RESET:
	221	case AC97_VENDOR_ID1:
	222	case AC97_VENDOR_ID2:
	223	return soc_ac97_ops.read(codec->ac97, reg);
	224	default:
	225	reg = reg >> 1;
	226
	227	if (reg >= (ARRAY_SIZE(wm9705_reg)))
	228	return -EIO;
	229
	230	return cache[reg];
	231	}
	232	}
	233
	234	static int ac97_write(struct snd_soc_codec *codec, unsigned int reg,
	235	unsigned int val)
	236	{
	237	u16 *cache = codec->reg_cache;
	238
	239	soc_ac97_ops.write(codec->ac97, reg, val);
	240	reg = reg >> 1;
	241	if (reg < (ARRAY_SIZE(wm9705_reg)))
	242	cache[reg] = val;
	243
	244	return 0;
	245	}
	246
	247	static int ac97_prepare(struct snd_pcm_substream *substream,
	248	struct snd_soc_dai *dai)
	249	{
	250	struct snd_pcm_runtime *runtime = substream->runtime;
	251	struct snd_soc_pcm_runtime *rtd = substream->private_data;
f0fba2ad	252	struct snd_soc_codec *codec = rtd->codec;
2aceefef IM	253	int reg;
	254	u16 vra;
	255
	256	vra = ac97_read(codec, AC97_EXTENDED_STATUS);
	257	ac97_write(codec, AC97_EXTENDED_STATUS, vra \| 0x1);
	258
	259	if (substream->stream == SNDRV_PCM_STREAM_PLAYBACK)
	260	reg = AC97_PCM_FRONT_DAC_RATE;
	261	else
	262	reg = AC97_PCM_LR_ADC_RATE;
	263
	264	return ac97_write(codec, reg, runtime->rate);
	265	}
	266
	267	#define WM9705_AC97_RATES (SNDRV_PCM_RATE_8000 \| SNDRV_PCM_RATE_11025 \| \
	268	SNDRV_PCM_RATE_16000 \| SNDRV_PCM_RATE_22050 \| \
	269	SNDRV_PCM_RATE_32000 \| SNDRV_PCM_RATE_44100 \| \
	270	SNDRV_PCM_RATE_48000)
	271
6335d055 EM	272	static struct snd_soc_dai_ops wm9705_dai_ops = {
	273	.prepare = ac97_prepare,
	274	};
	275
f0fba2ad	276	static struct snd_soc_dai_driver wm9705_dai[] = {
2aceefef	277	{
f0fba2ad	278	.name = "wm9705-hifi",
2aceefef IM	279	.ac97_control = 1,
	280	.playback = {
	281	.stream_name = "HiFi Playback",
	282	.channels_min = 1,
	283	.channels_max = 2,
	284	.rates = WM9705_AC97_RATES,
33f503c9	285	.formats = SND_SOC_STD_AC97_FMTS,
2aceefef IM	286	},
	287	.capture = {
	288	.stream_name = "HiFi Capture",
	289	.channels_min = 1,
	290	.channels_max = 2,
	291	.rates = WM9705_AC97_RATES,
33f503c9	292	.formats = SND_SOC_STD_AC97_FMTS,
2aceefef	293	},
6335d055	294	.ops = &wm9705_dai_ops,
2aceefef IM	295	},
2aceefef IM	296	{
f0fba2ad	297	.name = "wm9705-aux",
2aceefef IM	298	.playback = {
	299	.stream_name = "Aux Playback",
	300	.channels_min = 1,
	301	.channels_max = 1,
	302	.rates = WM9705_AC97_RATES,
	303	.formats = SNDRV_PCM_FMTBIT_S16_LE,
	304	},
	305	}
	306	};
2aceefef IM	307
	308	static int wm9705_reset(struct snd_soc_codec *codec)
	309	{
	310	if (soc_ac97_ops.reset) {
	311	soc_ac97_ops.reset(codec->ac97);
	312	if (ac97_read(codec, 0) == wm9705_reg[0])
	313	return 0; /* Success */
	314	}
	315
	316	return -EIO;
	317	}
	318
0a11b168	319	#ifdef CONFIG_PM
f0fba2ad	320	static int wm9705_soc_suspend(struct snd_soc_codec *codec, pm_message_t msg)
0a11b168	321	{
0a11b168 MB	322	soc_ac97_ops.write(codec->ac97, AC97_POWERDOWN, 0xffff);
	323
	324	return 0;
	325	}
	326
f0fba2ad	327	static int wm9705_soc_resume(struct snd_soc_codec *codec)
0a11b168	328	{
0a11b168 MB	329	int i, ret;
	330	u16 *cache = codec->reg_cache;
	331
	332	ret = wm9705_reset(codec);
	333	if (ret < 0) {
	334	printk(KERN_ERR "could not reset AC97 codec\n");
	335	return ret;
	336	}
	337
	338	for (i = 2; i < ARRAY_SIZE(wm9705_reg) << 1; i += 2) {
	339	soc_ac97_ops.write(codec->ac97, i, cache[i>>1]);
	340	}
	341
	342	return 0;
	343	}
	344	#else
	345	#define wm9705_soc_suspend NULL
	346	#define wm9705_soc_resume NULL
	347	#endif
	348
f0fba2ad	349	static int wm9705_soc_probe(struct snd_soc_codec *codec)
2aceefef	350	{
2aceefef IM	351	int ret = 0;
	352
	353	printk(KERN_INFO "WM9705 SoC Audio Codec\n");
	354
2aceefef IM	355	ret = snd_soc_new_ac97_codec(codec, &soc_ac97_ops, 0);
	356	if (ret < 0) {
	357	printk(KERN_ERR "wm9705: failed to register AC97 codec\n");
f0fba2ad	358	return ret;
2aceefef IM	359	}
2aceefef IM	360
2aceefef IM	361	ret = wm9705_reset(codec);
	362	if (ret)
	363	goto reset_err;
	364
	365	snd_soc_add_controls(codec, wm9705_snd_ac97_controls,
	366	ARRAY_SIZE(wm9705_snd_ac97_controls));
	367	wm9705_add_widgets(codec);
	368
2aceefef IM	369	return 0;
2aceefef IM	370
a22eaf4c	371	reset_err:
2aceefef	372	snd_soc_free_ac97_codec(codec);
2aceefef IM	373	return ret;
	374	}
	375
f0fba2ad	376	static int wm9705_soc_remove(struct snd_soc_codec *codec)
2aceefef	377	{
2aceefef	378	snd_soc_free_ac97_codec(codec);
2aceefef IM	379	return 0;
	380	}
	381
f0fba2ad	382	static struct snd_soc_codec_driver soc_codec_dev_wm9705 = {
2aceefef IM	383	.probe = wm9705_soc_probe,
2aceefef IM	384	.remove = wm9705_soc_remove,
0a11b168 MB	385	.suspend = wm9705_soc_suspend,
0a11b168 MB	386	.resume = wm9705_soc_resume,
f0fba2ad LG	387	.read = ac97_read,
f0fba2ad LG	388	.write = ac97_write,
e5eec34c	389	.reg_cache_size = ARRAY_SIZE(wm9705_reg),
f0fba2ad LG	390	.reg_word_size = sizeof(u16),
	391	.reg_cache_step = 2,
	392	.reg_cache_default = wm9705_reg,
	393	};
	394
	395	static __devinit int wm9705_probe(struct platform_device *pdev)
	396	{
	397	return snd_soc_register_codec(&pdev->dev,
	398	&soc_codec_dev_wm9705, wm9705_dai, ARRAY_SIZE(wm9705_dai));
	399	}
	400
	401	static int __devexit wm9705_remove(struct platform_device *pdev)
	402	{
	403	snd_soc_unregister_codec(&pdev->dev);
	404	return 0;
	405	}
	406
	407	static struct platform_driver wm9705_codec_driver = {
	408	.driver = {
	409	.name = "wm9705-codec",
	410	.owner = THIS_MODULE,
	411	},
	412
	413	.probe = wm9705_probe,
	414	.remove = __devexit_p(wm9705_remove),
2aceefef	415	};
f0fba2ad LG	416
	417	static int __init wm9705_init(void)
	418	{
	419	return platform_driver_register(&wm9705_codec_driver);
	420	}
	421	module_init(wm9705_init);
	422
	423	static void __exit wm9705_exit(void)
	424	{
	425	platform_driver_unregister(&wm9705_codec_driver);
	426	}
	427	module_exit(wm9705_exit);
2aceefef IM	428
	429	MODULE_DESCRIPTION("ASoC WM9705 driver");
	430	MODULE_AUTHOR("Ian Molton");
	431	MODULE_LICENSE("GPL v2");