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