sound/i2c/other/ak4xxx-adda.c - linux/kernel/git/davem/net - Git at Google

 /*
  *   ALSA driver for AK4524 / AK4528 / AK4529 / AK4355 / AK4358 / AK4381
  *   AD and DA converters
  *
  *	Copyright (c) 2000-2004 Jaroslav Kysela <perex@suse.cz>,
  *				Takashi Iwai <tiwai@suse.de>
  *
  *   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.
  *
  *   This program is distributed in the hope that it will be useful,
  *   but WITHOUT ANY WARRANTY; without even the implied warranty of
  *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  *   GNU General Public License for more details.
  *
  *   You should have received a copy of the GNU General Public License
  *   along with this program; if not, write to the Free Software
  *   Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
  *
  */

 #include <sound/driver.h>
 #include <asm/io.h>
 #include <linux/delay.h>
 #include <linux/interrupt.h>
 #include <linux/init.h>
 #include <sound/core.h>
 #include <sound/control.h>
 #include <sound/ak4xxx-adda.h>

 MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>, Takashi Iwai <tiwai@suse.de>");
 MODULE_DESCRIPTION("Routines for control of AK452x / AK43xx  AD/DA converters");
 MODULE_LICENSE("GPL");

 void snd_akm4xxx_write(akm4xxx_t *ak, int chip, unsigned char reg, unsigned char val)
 {
 	ak->ops.lock(ak, chip);
 	ak->ops.write(ak, chip, reg, val);

 	/* save the data */
 	if (ak->type == SND_AK4524 || ak->type == SND_AK4528) {
 		if ((reg != 0x04 && reg != 0x05) || (val & 0x80) == 0)
 			snd_akm4xxx_set(ak, chip, reg, val);
 		else
 			snd_akm4xxx_set_ipga(ak, chip, reg, val);
 	} else {
 		/* AK4529, or else */
 		snd_akm4xxx_set(ak, chip, reg, val);
 	}
 	ak->ops.unlock(ak, chip);
 }

 /*
  * reset the AKM codecs
  * @state: 1 = reset codec, 0 = restore the registers
  *
  * assert the reset operation and restores the register values to the chips.
  */
 void snd_akm4xxx_reset(akm4xxx_t *ak, int state)
 {
 	unsigned int chip;
 	unsigned char reg;

 	switch (ak->type) {
 	case SND_AK4524:
 	case SND_AK4528:
 		for (chip = 0; chip < ak->num_dacs/2; chip++) {
 			snd_akm4xxx_write(ak, chip, 0x01, state ? 0x00 : 0x03);
 			if (state)
 				continue;
 			/* DAC volumes */
 			for (reg = 0x04; reg < (ak->type == SND_AK4528 ? 0x06 : 0x08); reg++)
 				snd_akm4xxx_write(ak, chip, reg, snd_akm4xxx_get(ak, chip, reg));
 			if (ak->type == SND_AK4528)
 				continue;
 			/* IPGA */
 			for (reg = 0x04; reg < 0x06; reg++)
 				snd_akm4xxx_write(ak, chip, reg, snd_akm4xxx_get_ipga(ak, chip, reg));
 		}
 		break;
 	case SND_AK4529:
 		/* FIXME: needed for ak4529? */
 		break;
 	case SND_AK4355:
 	case SND_AK4358:
 		if (state) {
 			snd_akm4xxx_write(ak, 0, 0x01, 0x02); /* reset and soft-mute */
 			return;
 		}
 		for (reg = 0x00; reg < 0x0b; reg++)
 			if (reg != 0x01)
 				snd_akm4xxx_write(ak, 0, reg, snd_akm4xxx_get(ak, 0, reg));
 		snd_akm4xxx_write(ak, 0, 0x01, 0x01); /* un-reset, unmute */
 		break;
 	case SND_AK4381:
 		for (chip = 0; chip < ak->num_dacs/2; chip++) {
 			snd_akm4xxx_write(ak, chip, 0x00, state ? 0x0c : 0x0f);
 			if (state)
 				continue;
 			for (reg = 0x01; reg < 0x05; reg++)
 				snd_akm4xxx_write(ak, chip, reg, snd_akm4xxx_get(ak, chip, reg));
 		}
 		break;
 	}
 }

 /*
  * initialize all the ak4xxx chips
  */
 void snd_akm4xxx_init(akm4xxx_t *ak)
 {
 	static unsigned char inits_ak4524[] = {
 		0x00, 0x07, /* 0: all power up */
 		0x01, 0x00, /* 1: ADC/DAC reset */
 		0x02, 0x60, /* 2: 24bit I2S */
 		0x03, 0x19, /* 3: deemphasis off */
 		0x01, 0x03, /* 1: ADC/DAC enable */
 		0x04, 0x00, /* 4: ADC left muted */
 		0x05, 0x00, /* 5: ADC right muted */
 		0x04, 0x80, /* 4: ADC IPGA gain 0dB */
 		0x05, 0x80, /* 5: ADC IPGA gain 0dB */
 		0x06, 0x00, /* 6: DAC left muted */
 		0x07, 0x00, /* 7: DAC right muted */
 		0xff, 0xff
 	};
 	static unsigned char inits_ak4528[] = {
 		0x00, 0x07, /* 0: all power up */
 		0x01, 0x00, /* 1: ADC/DAC reset */
 		0x02, 0x60, /* 2: 24bit I2S */
 		0x03, 0x0d, /* 3: deemphasis off, turn LR highpass filters on */
 		0x01, 0x03, /* 1: ADC/DAC enable */
 		0x04, 0x00, /* 4: ADC left muted */
 		0x05, 0x00, /* 5: ADC right muted */
 		0xff, 0xff
 	};
 	static unsigned char inits_ak4529[] = {
 		0x09, 0x01, /* 9: ATS=0, RSTN=1 */
 		0x0a, 0x3f, /* A: all power up, no zero/overflow detection */
 		0x00, 0x0c, /* 0: TDM=0, 24bit I2S, SMUTE=0 */
 		0x01, 0x00, /* 1: ACKS=0, ADC, loop off */
 		0x02, 0xff, /* 2: LOUT1 muted */
 		0x03, 0xff, /* 3: ROUT1 muted */
 		0x04, 0xff, /* 4: LOUT2 muted */
 		0x05, 0xff, /* 5: ROUT2 muted */
 		0x06, 0xff, /* 6: LOUT3 muted */
 		0x07, 0xff, /* 7: ROUT3 muted */
 		0x0b, 0xff, /* B: LOUT4 muted */
 		0x0c, 0xff, /* C: ROUT4 muted */
 		0x08, 0x55, /* 8: deemphasis all off */
 		0xff, 0xff
 	};
 	static unsigned char inits_ak4355[] = {
 		0x01, 0x02, /* 1: reset and soft-mute */
 		0x00, 0x06, /* 0: mode3(i2s), disable auto-clock detect, disable DZF, sharp roll-off, RSTN#=0 */
 		0x02, 0x0e, /* 2: DA's power up, normal speed, RSTN#=0 */
 		// 0x02, 0x2e, /* quad speed */
 		0x03, 0x01, /* 3: de-emphasis off */
 		0x04, 0x00, /* 4: LOUT1 volume muted */
 		0x05, 0x00, /* 5: ROUT1 volume muted */
 		0x06, 0x00, /* 6: LOUT2 volume muted */
 		0x07, 0x00, /* 7: ROUT2 volume muted */
 		0x08, 0x00, /* 8: LOUT3 volume muted */
 		0x09, 0x00, /* 9: ROUT3 volume muted */
 		0x0a, 0x00, /* a: DATT speed=0, ignore DZF */
 		0x01, 0x01, /* 1: un-reset, unmute */
 		0xff, 0xff
 	};
 	static unsigned char inits_ak4358[] = {
 		0x01, 0x02, /* 1: reset and soft-mute */
 		0x00, 0x06, /* 0: mode3(i2s), disable auto-clock detect, disable DZF, sharp roll-off, RSTN#=0 */
 		0x02, 0x0e, /* 2: DA's power up, normal speed, RSTN#=0 */
 		// 0x02, 0x2e, /* quad speed */
 		0x03, 0x01, /* 3: de-emphasis off */
 		0x04, 0x00, /* 4: LOUT1 volume muted */
 		0x05, 0x00, /* 5: ROUT1 volume muted */
 		0x06, 0x00, /* 6: LOUT2 volume muted */
 		0x07, 0x00, /* 7: ROUT2 volume muted */
 		0x08, 0x00, /* 8: LOUT3 volume muted */
 		0x09, 0x00, /* 9: ROUT3 volume muted */
 		0x0b, 0x00, /* b: LOUT4 volume muted */
 		0x0c, 0x00, /* c: ROUT4 volume muted */
 		0x0a, 0x00, /* a: DATT speed=0, ignore DZF */
 		0x01, 0x01, /* 1: un-reset, unmute */
 		0xff, 0xff
 	};
 	static unsigned char inits_ak4381[] = {
 		0x00, 0x0c, /* 0: mode3(i2s), disable auto-clock detect */
 		0x01, 0x02, /* 1: de-emphasis off, normal speed, sharp roll-off, DZF off */
 		// 0x01, 0x12, /* quad speed */
 		0x02, 0x00, /* 2: DZF disabled */
 		0x03, 0x00, /* 3: LATT 0 */
 		0x04, 0x00, /* 4: RATT 0 */
 		0x00, 0x0f, /* 0: power-up, un-reset */
 		0xff, 0xff
 	};

 	int chip, num_chips;
 	unsigned char *ptr, reg, data, *inits;

 	switch (ak->type) {
 	case SND_AK4524:
 		inits = inits_ak4524;
 		num_chips = ak->num_dacs / 2;
 		break;
 	case SND_AK4528:
 		inits = inits_ak4528;
 		num_chips = ak->num_dacs / 2;
 		break;
 	case SND_AK4529:
 		inits = inits_ak4529;
 		num_chips = 1;
 		break;
 	case SND_AK4355:
 		inits = inits_ak4355;
 		num_chips = 1;
 		break;
 	case SND_AK4358:
 		inits = inits_ak4358;
 		num_chips = 1;
 		break;
 	case SND_AK4381:
 		inits = inits_ak4381;
 		num_chips = ak->num_dacs / 2;
 		break;
 	default:
 		snd_BUG();
 		return;
 	}

 	for (chip = 0; chip < num_chips; chip++) {
 		ptr = inits;
 		while (*ptr != 0xff) {
 			reg = *ptr++;
 			data = *ptr++;
 			snd_akm4xxx_write(ak, chip, reg, data);
 		}
 	}
 }

 #define AK_GET_CHIP(val)		(((val) >> 8) & 0xff)
 #define AK_GET_ADDR(val)		((val) & 0xff)
 #define AK_GET_SHIFT(val)		(((val) >> 16) & 0x7f)
 #define AK_GET_INVERT(val)		(((val) >> 23) & 1)
 #define AK_GET_MASK(val)		(((val) >> 24) & 0xff)
 #define AK_COMPOSE(chip,addr,shift,mask) (((chip) << 8) | (addr) | ((shift) << 16) | ((mask) << 24))
 #define AK_INVERT 			(1<<23)

 static int snd_akm4xxx_volume_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
 {
 	unsigned int mask = AK_GET_MASK(kcontrol->private_value);

 	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 	uinfo->count = 1;
 	uinfo->value.integer.min = 0;
 	uinfo->value.integer.max = mask;
 	return 0;
 }

 static int snd_akm4xxx_volume_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
 {
 	akm4xxx_t *ak = snd_kcontrol_chip(kcontrol);
 	int chip = AK_GET_CHIP(kcontrol->private_value);
 	int addr = AK_GET_ADDR(kcontrol->private_value);
 	int invert = AK_GET_INVERT(kcontrol->private_value);
 	unsigned int mask = AK_GET_MASK(kcontrol->private_value);
 	unsigned char val = snd_akm4xxx_get(ak, chip, addr);

 	ucontrol->value.integer.value[0] = invert ? mask - val : val;
 	return 0;
 }

 static int snd_akm4xxx_volume_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
 {
 	akm4xxx_t *ak = snd_kcontrol_chip(kcontrol);
 	int chip = AK_GET_CHIP(kcontrol->private_value);
 	int addr = AK_GET_ADDR(kcontrol->private_value);
 	int invert = AK_GET_INVERT(kcontrol->private_value);
 	unsigned int mask = AK_GET_MASK(kcontrol->private_value);
 	unsigned char nval = ucontrol->value.integer.value[0] % (mask+1);
 	int change;

 	if (invert)
 		nval = mask - nval;
 	change = snd_akm4xxx_get(ak, chip, addr) != nval;
 	if (change)
 		snd_akm4xxx_write(ak, chip, addr, nval);
 	return change;
 }

 static int snd_akm4xxx_ipga_gain_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t * uinfo)
 {
 	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 	uinfo->count = 1;
 	uinfo->value.integer.min = 0;
 	uinfo->value.integer.max = 36;
 	return 0;
 }

 static int snd_akm4xxx_ipga_gain_get(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
 {
 	akm4xxx_t *ak = snd_kcontrol_chip(kcontrol);
 	int chip = AK_GET_CHIP(kcontrol->private_value);
 	int addr = AK_GET_ADDR(kcontrol->private_value);
 	ucontrol->value.integer.value[0] = snd_akm4xxx_get_ipga(ak, chip, addr) & 0x7f;
 	return 0;
 }

 static int snd_akm4xxx_ipga_gain_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
 {
 	akm4xxx_t *ak = snd_kcontrol_chip(kcontrol);
 	int chip = AK_GET_CHIP(kcontrol->private_value);
 	int addr = AK_GET_ADDR(kcontrol->private_value);
 	unsigned char nval = (ucontrol->value.integer.value[0] % 37) | 0x80;
 	int change = snd_akm4xxx_get_ipga(ak, chip, addr) != nval;
 	if (change)
 		snd_akm4xxx_write(ak, chip, addr, nval);
 	return change;
 }

 static int snd_akm4xxx_deemphasis_info(snd_kcontrol_t *kcontrol, snd_ctl_elem_info_t *uinfo)
 {
 	static char *texts[4] = {
 		"44.1kHz", "Off", "48kHz", "32kHz",
 	};
 	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
 	uinfo->count = 1;
 	uinfo->value.enumerated.items = 4;
 	if (uinfo->value.enumerated.item >= 4)
 		uinfo->value.enumerated.item = 3;
 	strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
 	return 0;
 }

 static int snd_akm4xxx_deemphasis_get(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t *ucontrol)
 {
 	akm4xxx_t *ak = snd_kcontrol_chip(kcontrol);
 	int chip = AK_GET_CHIP(kcontrol->private_value);
 	int addr = AK_GET_ADDR(kcontrol->private_value);
 	int shift = AK_GET_SHIFT(kcontrol->private_value);
 	ucontrol->value.enumerated.item[0] = (snd_akm4xxx_get(ak, chip, addr) >> shift) & 3;
 	return 0;
 }

 static int snd_akm4xxx_deemphasis_put(snd_kcontrol_t *kcontrol, snd_ctl_elem_value_t *ucontrol)
 {
 	akm4xxx_t *ak = snd_kcontrol_chip(kcontrol);
 	int chip = AK_GET_CHIP(kcontrol->private_value);
 	int addr = AK_GET_ADDR(kcontrol->private_value);
 	int shift = AK_GET_SHIFT(kcontrol->private_value);
 	unsigned char nval = ucontrol->value.enumerated.item[0] & 3;
 	int change;

 	nval = (nval << shift) | (snd_akm4xxx_get(ak, chip, addr) & ~(3 << shift));
 	change = snd_akm4xxx_get(ak, chip, addr) != nval;
 	if (change)
 		snd_akm4xxx_write(ak, chip, addr, nval);
 	return change;
 }

 /*
  * build AK4xxx controls
  */

 int snd_akm4xxx_build_controls(akm4xxx_t *ak)
 {
 	unsigned int idx, num_emphs;
 	snd_kcontrol_t *ctl;
 	int err;

 	ctl = kmalloc(sizeof(*ctl), GFP_KERNEL);
 	if (! ctl)
 		return -ENOMEM;

 	for (idx = 0; idx < ak->num_dacs; ++idx) {
 		memset(ctl, 0, sizeof(*ctl));
 		strcpy(ctl->id.name, "DAC Volume");
 		ctl->id.index = idx + ak->idx_offset * 2;
 		ctl->id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
 		ctl->count = 1;
 		ctl->info = snd_akm4xxx_volume_info;
 		ctl->get = snd_akm4xxx_volume_get;
 		ctl->put = snd_akm4xxx_volume_put;
 		switch (ak->type) {
 		case SND_AK4524:
 			ctl->private_value = AK_COMPOSE(idx/2, (idx%2) + 6, 0, 127); /* register 6 & 7 */
 			break;
 		case SND_AK4528:
 			ctl->private_value = AK_COMPOSE(idx/2, (idx%2) + 4, 0, 127); /* register 4 & 5 */
 			break;
 		case SND_AK4529: {
 			int val = idx < 6 ? idx + 2 : (idx - 6) + 0xb; /* registers 2-7 and b,c */
 			ctl->private_value = AK_COMPOSE(0, val, 0, 255) | AK_INVERT;
 			break;
 		}
 		case SND_AK4355:
 			ctl->private_value = AK_COMPOSE(0, idx + 4, 0, 255); /* register 4-9, chip #0 only */
 			break;
 		case SND_AK4358:
 			if (idx >= 6)
 				ctl->private_value = AK_COMPOSE(0, idx + 5, 0, 255); /* register 4-9, chip #0 only */
 			else
 				ctl->private_value = AK_COMPOSE(0, idx + 4, 0, 255); /* register 4-9, chip #0 only */
 			break;
 		case SND_AK4381:
 			ctl->private_value = AK_COMPOSE(idx/2, (idx%2) + 3, 0, 255); /* register 3 & 4 */
 			break;
 		default:
 			err = -EINVAL;
 			goto __error;
 		}
 		ctl->private_data = ak;
 		if ((err = snd_ctl_add(ak->card, snd_ctl_new(ctl, SNDRV_CTL_ELEM_ACCESS_READ|SNDRV_CTL_ELEM_ACCESS_WRITE))) < 0)
 			goto __error;
 	}
 	for (idx = 0; idx < ak->num_adcs && ak->type == SND_AK4524; ++idx) {
 		memset(ctl, 0, sizeof(*ctl));
 		strcpy(ctl->id.name, "ADC Volume");
 		ctl->id.index = idx + ak->idx_offset * 2;
 		ctl->id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
 		ctl->count = 1;
 		ctl->info = snd_akm4xxx_volume_info;
 		ctl->get = snd_akm4xxx_volume_get;
 		ctl->put = snd_akm4xxx_volume_put;
 		ctl->private_value = AK_COMPOSE(idx/2, (idx%2) + 4, 0, 127); /* register 4 & 5 */
 		ctl->private_data = ak;
 		if ((err = snd_ctl_add(ak->card, snd_ctl_new(ctl, SNDRV_CTL_ELEM_ACCESS_READ|SNDRV_CTL_ELEM_ACCESS_WRITE))) < 0)
 			goto __error;

 		memset(ctl, 0, sizeof(*ctl));
 		strcpy(ctl->id.name, "IPGA Analog Capture Volume");
 		ctl->id.index = idx + ak->idx_offset * 2;
 		ctl->id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
 		ctl->count = 1;
 		ctl->info = snd_akm4xxx_ipga_gain_info;
 		ctl->get = snd_akm4xxx_ipga_gain_get;
 		ctl->put = snd_akm4xxx_ipga_gain_put;
 		ctl->private_value = AK_COMPOSE(idx/2, (idx%2) + 4, 0, 0); /* register 4 & 5 */
 		ctl->private_data = ak;
 		if ((err = snd_ctl_add(ak->card, snd_ctl_new(ctl, SNDRV_CTL_ELEM_ACCESS_READ|SNDRV_CTL_ELEM_ACCESS_WRITE))) < 0)
 			goto __error;
 	}
 	if (ak->type == SND_AK4355 || ak->type == SND_AK4358)
 		num_emphs = 1;
 	else
 		num_emphs = ak->num_dacs / 2;
 	for (idx = 0; idx < num_emphs; idx++) {
 		memset(ctl, 0, sizeof(*ctl));
 		strcpy(ctl->id.name, "Deemphasis");
 		ctl->id.index = idx + ak->idx_offset;
 		ctl->id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
 		ctl->count = 1;
 		ctl->info = snd_akm4xxx_deemphasis_info;
 		ctl->get = snd_akm4xxx_deemphasis_get;
 		ctl->put = snd_akm4xxx_deemphasis_put;
 		switch (ak->type) {
 		case SND_AK4524:
 		case SND_AK4528:
 			ctl->private_value = AK_COMPOSE(idx, 3, 0, 0); /* register 3 */
 			break;
 		case SND_AK4529: {
 			int shift = idx == 3 ? 6 : (2 - idx) * 2;
 			ctl->private_value = AK_COMPOSE(0, 8, shift, 0); /* register 8 with shift */
 			break;
 		}
 		case SND_AK4355:
 		case SND_AK4358:
 			ctl->private_value = AK_COMPOSE(idx, 3, 0, 0);
 			break;
 		case SND_AK4381:
 			ctl->private_value = AK_COMPOSE(idx, 1, 1, 0);
 			break;
 		}
 		ctl->private_data = ak;
 		if ((err = snd_ctl_add(ak->card, snd_ctl_new(ctl, SNDRV_CTL_ELEM_ACCESS_READ|SNDRV_CTL_ELEM_ACCESS_WRITE))) < 0)
 			goto __error;
 	}
 	err = 0;

  __error:
 	kfree(ctl);
 	return err;
 }

 static int __init alsa_akm4xxx_module_init(void)
 {
 	return 0;
 }

 static void __exit alsa_akm4xxx_module_exit(void)
 {
 }

 module_init(alsa_akm4xxx_module_init)
 module_exit(alsa_akm4xxx_module_exit)

 EXPORT_SYMBOL(snd_akm4xxx_write);
 EXPORT_SYMBOL(snd_akm4xxx_reset);
 EXPORT_SYMBOL(snd_akm4xxx_init);
 EXPORT_SYMBOL(snd_akm4xxx_build_controls);
	/*
	* ALSA driver for AK4524 / AK4528 / AK4529 / AK4355 / AK4358 / AK4381
	* AD and DA converters
	*
	* Copyright (c) 2000-2004 Jaroslav Kysela <perex@suse.cz>,
	* Takashi Iwai <tiwai@suse.de>
	*
	* 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.
	*
	* This program is distributed in the hope that it will be useful,
	* but WITHOUT ANY WARRANTY; without even the implied warranty of
	* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
	* GNU General Public License for more details.
	*
	* You should have received a copy of the GNU General Public License
	* along with this program; if not, write to the Free Software
	* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
	*
	*/

	#include <sound/driver.h>
	#include <asm/io.h>
	#include <linux/delay.h>
	#include <linux/interrupt.h>
	#include <linux/init.h>
	#include <sound/core.h>
	#include <sound/control.h>
	#include <sound/ak4xxx-adda.h>

	MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>, Takashi Iwai <tiwai@suse.de>");
	MODULE_DESCRIPTION("Routines for control of AK452x / AK43xx AD/DA converters");
	MODULE_LICENSE("GPL");

	void snd_akm4xxx_write(akm4xxx_t *ak, int chip, unsigned char reg, unsigned char val)
	{
	ak->ops.lock(ak, chip);
	ak->ops.write(ak, chip, reg, val);

	/* save the data */
	if (ak->type == SND_AK4524 \|\| ak->type == SND_AK4528) {
	if ((reg != 0x04 && reg != 0x05) \|\| (val & 0x80) == 0)
	snd_akm4xxx_set(ak, chip, reg, val);
	else
	snd_akm4xxx_set_ipga(ak, chip, reg, val);
	} else {
	/* AK4529, or else */
	snd_akm4xxx_set(ak, chip, reg, val);
	}
	ak->ops.unlock(ak, chip);
	}

	/*
	* reset the AKM codecs
	* @state: 1 = reset codec, 0 = restore the registers
	*
	* assert the reset operation and restores the register values to the chips.
	*/
	void snd_akm4xxx_reset(akm4xxx_t *ak, int state)
	{
	unsigned int chip;
	unsigned char reg;

	switch (ak->type) {
	case SND_AK4524:
	case SND_AK4528:
	for (chip = 0; chip < ak->num_dacs/2; chip++) {
	snd_akm4xxx_write(ak, chip, 0x01, state ? 0x00 : 0x03);
	if (state)
	continue;
	/* DAC volumes */
	for (reg = 0x04; reg < (ak->type == SND_AK4528 ? 0x06 : 0x08); reg++)
	snd_akm4xxx_write(ak, chip, reg, snd_akm4xxx_get(ak, chip, reg));
	if (ak->type == SND_AK4528)
	continue;
	/* IPGA */
	for (reg = 0x04; reg < 0x06; reg++)
	snd_akm4xxx_write(ak, chip, reg, snd_akm4xxx_get_ipga(ak, chip, reg));
	}
	break;
	case SND_AK4529:
	/* FIXME: needed for ak4529? */
	break;
	case SND_AK4355:
	case SND_AK4358:
	if (state) {
	snd_akm4xxx_write(ak, 0, 0x01, 0x02); /* reset and soft-mute */
	return;
	}
	for (reg = 0x00; reg < 0x0b; reg++)
	if (reg != 0x01)
	snd_akm4xxx_write(ak, 0, reg, snd_akm4xxx_get(ak, 0, reg));
	snd_akm4xxx_write(ak, 0, 0x01, 0x01); /* un-reset, unmute */
	break;
	case SND_AK4381:
	for (chip = 0; chip < ak->num_dacs/2; chip++) {
	snd_akm4xxx_write(ak, chip, 0x00, state ? 0x0c : 0x0f);
	if (state)
	continue;
	for (reg = 0x01; reg < 0x05; reg++)
	snd_akm4xxx_write(ak, chip, reg, snd_akm4xxx_get(ak, chip, reg));
	}
	break;
	}
	}

	/*
	* initialize all the ak4xxx chips
	*/
	void snd_akm4xxx_init(akm4xxx_t *ak)
	{
	static unsigned char inits_ak4524[] = {
	0x00, 0x07, /* 0: all power up */
	0x01, 0x00, /* 1: ADC/DAC reset */
	0x02, 0x60, /* 2: 24bit I2S */
	0x03, 0x19, /* 3: deemphasis off */
	0x01, 0x03, /* 1: ADC/DAC enable */
	0x04, 0x00, /* 4: ADC left muted */
	0x05, 0x00, /* 5: ADC right muted */
	0x04, 0x80, /* 4: ADC IPGA gain 0dB */
	0x05, 0x80, /* 5: ADC IPGA gain 0dB */
	0x06, 0x00, /* 6: DAC left muted */
	0x07, 0x00, /* 7: DAC right muted */
	0xff, 0xff
	};
	static unsigned char inits_ak4528[] = {
	0x00, 0x07, /* 0: all power up */
	0x01, 0x00, /* 1: ADC/DAC reset */
	0x02, 0x60, /* 2: 24bit I2S */
	0x03, 0x0d, /* 3: deemphasis off, turn LR highpass filters on */
	0x01, 0x03, /* 1: ADC/DAC enable */
	0x04, 0x00, /* 4: ADC left muted */
	0x05, 0x00, /* 5: ADC right muted */
	0xff, 0xff
	};
	static unsigned char inits_ak4529[] = {
	0x09, 0x01, /* 9: ATS=0, RSTN=1 */
	0x0a, 0x3f, /* A: all power up, no zero/overflow detection */
	0x00, 0x0c, /* 0: TDM=0, 24bit I2S, SMUTE=0 */
	0x01, 0x00, /* 1: ACKS=0, ADC, loop off */
	0x02, 0xff, /* 2: LOUT1 muted */
	0x03, 0xff, /* 3: ROUT1 muted */
	0x04, 0xff, /* 4: LOUT2 muted */
	0x05, 0xff, /* 5: ROUT2 muted */
	0x06, 0xff, /* 6: LOUT3 muted */
	0x07, 0xff, /* 7: ROUT3 muted */
	0x0b, 0xff, /* B: LOUT4 muted */
	0x0c, 0xff, /* C: ROUT4 muted */
	0x08, 0x55, /* 8: deemphasis all off */
	0xff, 0xff
	};
	static unsigned char inits_ak4355[] = {
	0x01, 0x02, /* 1: reset and soft-mute */
	0x00, 0x06, /* 0: mode3(i2s), disable auto-clock detect, disable DZF, sharp roll-off, RSTN#=0 */
	0x02, 0x0e, /* 2: DA's power up, normal speed, RSTN#=0 */
	// 0x02, 0x2e, /* quad speed */
	0x03, 0x01, /* 3: de-emphasis off */
	0x04, 0x00, /* 4: LOUT1 volume muted */
	0x05, 0x00, /* 5: ROUT1 volume muted */
	0x06, 0x00, /* 6: LOUT2 volume muted */
	0x07, 0x00, /* 7: ROUT2 volume muted */
	0x08, 0x00, /* 8: LOUT3 volume muted */
	0x09, 0x00, /* 9: ROUT3 volume muted */
	0x0a, 0x00, /* a: DATT speed=0, ignore DZF */
	0x01, 0x01, /* 1: un-reset, unmute */
	0xff, 0xff
	};
	static unsigned char inits_ak4358[] = {
	0x01, 0x02, /* 1: reset and soft-mute */
	0x00, 0x06, /* 0: mode3(i2s), disable auto-clock detect, disable DZF, sharp roll-off, RSTN#=0 */
	0x02, 0x0e, /* 2: DA's power up, normal speed, RSTN#=0 */
	// 0x02, 0x2e, /* quad speed */
	0x03, 0x01, /* 3: de-emphasis off */
	0x04, 0x00, /* 4: LOUT1 volume muted */
	0x05, 0x00, /* 5: ROUT1 volume muted */
	0x06, 0x00, /* 6: LOUT2 volume muted */
	0x07, 0x00, /* 7: ROUT2 volume muted */
	0x08, 0x00, /* 8: LOUT3 volume muted */
	0x09, 0x00, /* 9: ROUT3 volume muted */
	0x0b, 0x00, /* b: LOUT4 volume muted */
	0x0c, 0x00, /* c: ROUT4 volume muted */
	0x0a, 0x00, /* a: DATT speed=0, ignore DZF */
	0x01, 0x01, /* 1: un-reset, unmute */
	0xff, 0xff
	};
	static unsigned char inits_ak4381[] = {
	0x00, 0x0c, /* 0: mode3(i2s), disable auto-clock detect */
	0x01, 0x02, /* 1: de-emphasis off, normal speed, sharp roll-off, DZF off */
	// 0x01, 0x12, /* quad speed */
	0x02, 0x00, /* 2: DZF disabled */
	0x03, 0x00, /* 3: LATT 0 */
	0x04, 0x00, /* 4: RATT 0 */
	0x00, 0x0f, /* 0: power-up, un-reset */
	0xff, 0xff
	};

	int chip, num_chips;
	unsigned char ptr, reg, data, inits;

	switch (ak->type) {
	case SND_AK4524:
	inits = inits_ak4524;
	num_chips = ak->num_dacs / 2;
	break;
	case SND_AK4528:
	inits = inits_ak4528;
	num_chips = ak->num_dacs / 2;
	break;
	case SND_AK4529:
	inits = inits_ak4529;
	num_chips = 1;
	break;
	case SND_AK4355:
	inits = inits_ak4355;
	num_chips = 1;
	break;
	case SND_AK4358:
	inits = inits_ak4358;
	num_chips = 1;
	break;
	case SND_AK4381:
	inits = inits_ak4381;
	num_chips = ak->num_dacs / 2;
	break;
	default:
	snd_BUG();
	return;
	}

	for (chip = 0; chip < num_chips; chip++) {
	ptr = inits;
	while (*ptr != 0xff) {
	reg = *ptr++;
	data = *ptr++;
	snd_akm4xxx_write(ak, chip, reg, data);
	}
	}
	}

	#define AK_GET_CHIP(val) (((val) >> 8) & 0xff)
	#define AK_GET_ADDR(val) ((val) & 0xff)
	#define AK_GET_SHIFT(val) (((val) >> 16) & 0x7f)
	#define AK_GET_INVERT(val) (((val) >> 23) & 1)
	#define AK_GET_MASK(val) (((val) >> 24) & 0xff)
	#define AK_COMPOSE(chip,addr,shift,mask) (((chip) << 8) \| (addr) \| ((shift) << 16) \| ((mask) << 24))
	#define AK_INVERT (1<<23)

	static int snd_akm4xxx_volume_info(snd_kcontrol_t kcontrol, snd_ctl_elem_info_t uinfo)
	{
	unsigned int mask = AK_GET_MASK(kcontrol->private_value);

	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
	uinfo->count = 1;
	uinfo->value.integer.min = 0;
	uinfo->value.integer.max = mask;
	return 0;
	}

	static int snd_akm4xxx_volume_get(snd_kcontrol_t kcontrol, snd_ctl_elem_value_t ucontrol)
	{
	akm4xxx_t *ak = snd_kcontrol_chip(kcontrol);
	int chip = AK_GET_CHIP(kcontrol->private_value);
	int addr = AK_GET_ADDR(kcontrol->private_value);
	int invert = AK_GET_INVERT(kcontrol->private_value);
	unsigned int mask = AK_GET_MASK(kcontrol->private_value);
	unsigned char val = snd_akm4xxx_get(ak, chip, addr);

	ucontrol->value.integer.value[0] = invert ? mask - val : val;
	return 0;
	}

	static int snd_akm4xxx_volume_put(snd_kcontrol_t kcontrol, snd_ctl_elem_value_t ucontrol)
	{
	akm4xxx_t *ak = snd_kcontrol_chip(kcontrol);
	int chip = AK_GET_CHIP(kcontrol->private_value);
	int addr = AK_GET_ADDR(kcontrol->private_value);
	int invert = AK_GET_INVERT(kcontrol->private_value);
	unsigned int mask = AK_GET_MASK(kcontrol->private_value);
	unsigned char nval = ucontrol->value.integer.value[0] % (mask+1);
	int change;

	if (invert)
	nval = mask - nval;
	change = snd_akm4xxx_get(ak, chip, addr) != nval;
	if (change)
	snd_akm4xxx_write(ak, chip, addr, nval);
	return change;
	}

	static int snd_akm4xxx_ipga_gain_info(snd_kcontrol_t kcontrol, snd_ctl_elem_info_t uinfo)
	{
	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
	uinfo->count = 1;
	uinfo->value.integer.min = 0;
	uinfo->value.integer.max = 36;
	return 0;
	}

	static int snd_akm4xxx_ipga_gain_get(snd_kcontrol_t kcontrol, snd_ctl_elem_value_t ucontrol)
	{
	akm4xxx_t *ak = snd_kcontrol_chip(kcontrol);
	int chip = AK_GET_CHIP(kcontrol->private_value);
	int addr = AK_GET_ADDR(kcontrol->private_value);
	ucontrol->value.integer.value[0] = snd_akm4xxx_get_ipga(ak, chip, addr) & 0x7f;
	return 0;
	}

	static int snd_akm4xxx_ipga_gain_put(snd_kcontrol_t kcontrol, snd_ctl_elem_value_t ucontrol)
	{
	akm4xxx_t *ak = snd_kcontrol_chip(kcontrol);
	int chip = AK_GET_CHIP(kcontrol->private_value);
	int addr = AK_GET_ADDR(kcontrol->private_value);
	unsigned char nval = (ucontrol->value.integer.value[0] % 37) \| 0x80;
	int change = snd_akm4xxx_get_ipga(ak, chip, addr) != nval;
	if (change)
	snd_akm4xxx_write(ak, chip, addr, nval);
	return change;
	}

	static int snd_akm4xxx_deemphasis_info(snd_kcontrol_t kcontrol, snd_ctl_elem_info_t uinfo)
	{
	static char *texts[4] = {
	"44.1kHz", "Off", "48kHz", "32kHz",
	};
	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
	uinfo->count = 1;
	uinfo->value.enumerated.items = 4;
	if (uinfo->value.enumerated.item >= 4)
	uinfo->value.enumerated.item = 3;
	strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
	return 0;
	}

	static int snd_akm4xxx_deemphasis_get(snd_kcontrol_t * kcontrol, snd_ctl_elem_value_t *ucontrol)
	{
	akm4xxx_t *ak = snd_kcontrol_chip(kcontrol);
	int chip = AK_GET_CHIP(kcontrol->private_value);
	int addr = AK_GET_ADDR(kcontrol->private_value);
	int shift = AK_GET_SHIFT(kcontrol->private_value);
	ucontrol->value.enumerated.item[0] = (snd_akm4xxx_get(ak, chip, addr) >> shift) & 3;
	return 0;
	}

	static int snd_akm4xxx_deemphasis_put(snd_kcontrol_t kcontrol, snd_ctl_elem_value_t ucontrol)
	{
	akm4xxx_t *ak = snd_kcontrol_chip(kcontrol);
	int chip = AK_GET_CHIP(kcontrol->private_value);
	int addr = AK_GET_ADDR(kcontrol->private_value);
	int shift = AK_GET_SHIFT(kcontrol->private_value);
	unsigned char nval = ucontrol->value.enumerated.item[0] & 3;
	int change;

	nval = (nval << shift) \| (snd_akm4xxx_get(ak, chip, addr) & ~(3 << shift));
	change = snd_akm4xxx_get(ak, chip, addr) != nval;
	if (change)
	snd_akm4xxx_write(ak, chip, addr, nval);
	return change;
	}

	/*
	* build AK4xxx controls
	*/

	int snd_akm4xxx_build_controls(akm4xxx_t *ak)
	{
	unsigned int idx, num_emphs;
	snd_kcontrol_t *ctl;
	int err;

	ctl = kmalloc(sizeof(*ctl), GFP_KERNEL);
	if (! ctl)
	return -ENOMEM;

	for (idx = 0; idx < ak->num_dacs; ++idx) {
	memset(ctl, 0, sizeof(*ctl));
	strcpy(ctl->id.name, "DAC Volume");
	ctl->id.index = idx + ak->idx_offset * 2;
	ctl->id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
	ctl->count = 1;
	ctl->info = snd_akm4xxx_volume_info;
	ctl->get = snd_akm4xxx_volume_get;
	ctl->put = snd_akm4xxx_volume_put;
	switch (ak->type) {
	case SND_AK4524:
	ctl->private_value = AK_COMPOSE(idx/2, (idx%2) + 6, 0, 127); /* register 6 & 7 */
	break;
	case SND_AK4528:
	ctl->private_value = AK_COMPOSE(idx/2, (idx%2) + 4, 0, 127); /* register 4 & 5 */
	break;
	case SND_AK4529: {
	int val = idx < 6 ? idx + 2 : (idx - 6) + 0xb; /* registers 2-7 and b,c */
	ctl->private_value = AK_COMPOSE(0, val, 0, 255) \| AK_INVERT;
	break;
	}
	case SND_AK4355:
	ctl->private_value = AK_COMPOSE(0, idx + 4, 0, 255); /* register 4-9, chip #0 only */
	break;
	case SND_AK4358:
	if (idx >= 6)
	ctl->private_value = AK_COMPOSE(0, idx + 5, 0, 255); /* register 4-9, chip #0 only */
	else
	ctl->private_value = AK_COMPOSE(0, idx + 4, 0, 255); /* register 4-9, chip #0 only */
	break;
	case SND_AK4381:
	ctl->private_value = AK_COMPOSE(idx/2, (idx%2) + 3, 0, 255); /* register 3 & 4 */
	break;
	default:
	err = -EINVAL;
	goto __error;
	}
	ctl->private_data = ak;
	if ((err = snd_ctl_add(ak->card, snd_ctl_new(ctl, SNDRV_CTL_ELEM_ACCESS_READ\|SNDRV_CTL_ELEM_ACCESS_WRITE))) < 0)
	goto __error;
	}
	for (idx = 0; idx < ak->num_adcs && ak->type == SND_AK4524; ++idx) {
	memset(ctl, 0, sizeof(*ctl));
	strcpy(ctl->id.name, "ADC Volume");
	ctl->id.index = idx + ak->idx_offset * 2;
	ctl->id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
	ctl->count = 1;
	ctl->info = snd_akm4xxx_volume_info;
	ctl->get = snd_akm4xxx_volume_get;
	ctl->put = snd_akm4xxx_volume_put;
	ctl->private_value = AK_COMPOSE(idx/2, (idx%2) + 4, 0, 127); /* register 4 & 5 */
	ctl->private_data = ak;
	if ((err = snd_ctl_add(ak->card, snd_ctl_new(ctl, SNDRV_CTL_ELEM_ACCESS_READ\|SNDRV_CTL_ELEM_ACCESS_WRITE))) < 0)
	goto __error;

	memset(ctl, 0, sizeof(*ctl));
	strcpy(ctl->id.name, "IPGA Analog Capture Volume");
	ctl->id.index = idx + ak->idx_offset * 2;
	ctl->id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
	ctl->count = 1;
	ctl->info = snd_akm4xxx_ipga_gain_info;
	ctl->get = snd_akm4xxx_ipga_gain_get;
	ctl->put = snd_akm4xxx_ipga_gain_put;
	ctl->private_value = AK_COMPOSE(idx/2, (idx%2) + 4, 0, 0); /* register 4 & 5 */
	ctl->private_data = ak;
	if ((err = snd_ctl_add(ak->card, snd_ctl_new(ctl, SNDRV_CTL_ELEM_ACCESS_READ\|SNDRV_CTL_ELEM_ACCESS_WRITE))) < 0)
	goto __error;
	}
	if (ak->type == SND_AK4355 \|\| ak->type == SND_AK4358)
	num_emphs = 1;
	else
	num_emphs = ak->num_dacs / 2;
	for (idx = 0; idx < num_emphs; idx++) {
	memset(ctl, 0, sizeof(*ctl));
	strcpy(ctl->id.name, "Deemphasis");
	ctl->id.index = idx + ak->idx_offset;
	ctl->id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
	ctl->count = 1;
	ctl->info = snd_akm4xxx_deemphasis_info;
	ctl->get = snd_akm4xxx_deemphasis_get;
	ctl->put = snd_akm4xxx_deemphasis_put;
	switch (ak->type) {
	case SND_AK4524:
	case SND_AK4528:
	ctl->private_value = AK_COMPOSE(idx, 3, 0, 0); /* register 3 */
	break;
	case SND_AK4529: {
	int shift = idx == 3 ? 6 : (2 - idx) * 2;
	ctl->private_value = AK_COMPOSE(0, 8, shift, 0); /* register 8 with shift */
	break;
	}
	case SND_AK4355:
	case SND_AK4358:
	ctl->private_value = AK_COMPOSE(idx, 3, 0, 0);
	break;
	case SND_AK4381:
	ctl->private_value = AK_COMPOSE(idx, 1, 1, 0);
	break;
	}
	ctl->private_data = ak;
	if ((err = snd_ctl_add(ak->card, snd_ctl_new(ctl, SNDRV_CTL_ELEM_ACCESS_READ\|SNDRV_CTL_ELEM_ACCESS_WRITE))) < 0)
	goto __error;
	}
	err = 0;

	__error:
	kfree(ctl);
	return err;
	}

	static int __init alsa_akm4xxx_module_init(void)
	{
	return 0;
	}

	static void __exit alsa_akm4xxx_module_exit(void)
	{
	}

	module_init(alsa_akm4xxx_module_init)
	module_exit(alsa_akm4xxx_module_exit)

	EXPORT_SYMBOL(snd_akm4xxx_write);
	EXPORT_SYMBOL(snd_akm4xxx_reset);
	EXPORT_SYMBOL(snd_akm4xxx_init);
	EXPORT_SYMBOL(snd_akm4xxx_build_controls);