sound/isa/msnd/msnd_pinnacle_mixer.c - third_party/linux - Git at Google

 /***************************************************************************
 			  msnd_pinnacle_mixer.c  -  description
 			     -------------------
     begin		: Fre Jun 7 2002
     copyright 		: (C) 2002 by karsten wiese
     email		: annabellesgarden@yahoo.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.				   *
  *									   *
  ***************************************************************************/

 #include <linux/io.h>

 #include <sound/core.h>
 #include <sound/control.h>
 #include "msnd.h"
 #include "msnd_pinnacle.h"


 #define MSND_MIXER_VOLUME	0
 #define MSND_MIXER_PCM		1
 #define MSND_MIXER_AUX		2	/* Input source 1  (aux1) */
 #define MSND_MIXER_IMIX		3	/*  Recording monitor  */
 #define MSND_MIXER_SYNTH	4
 #define MSND_MIXER_SPEAKER	5
 #define MSND_MIXER_LINE		6
 #define MSND_MIXER_MIC		7
 #define MSND_MIXER_RECLEV	11	/* Recording level */
 #define MSND_MIXER_IGAIN	12	/* Input gain */
 #define MSND_MIXER_OGAIN	13	/* Output gain */
 #define MSND_MIXER_DIGITAL	17	/* Digital (input) 1 */

 /*	Device mask bits	*/

 #define MSND_MASK_VOLUME	(1 << MSND_MIXER_VOLUME)
 #define MSND_MASK_SYNTH		(1 << MSND_MIXER_SYNTH)
 #define MSND_MASK_PCM		(1 << MSND_MIXER_PCM)
 #define MSND_MASK_SPEAKER	(1 << MSND_MIXER_SPEAKER)
 #define MSND_MASK_LINE		(1 << MSND_MIXER_LINE)
 #define MSND_MASK_MIC		(1 << MSND_MIXER_MIC)
 #define MSND_MASK_IMIX		(1 << MSND_MIXER_IMIX)
 #define MSND_MASK_RECLEV	(1 << MSND_MIXER_RECLEV)
 #define MSND_MASK_IGAIN		(1 << MSND_MIXER_IGAIN)
 #define MSND_MASK_OGAIN		(1 << MSND_MIXER_OGAIN)
 #define MSND_MASK_AUX		(1 << MSND_MIXER_AUX)
 #define MSND_MASK_DIGITAL	(1 << MSND_MIXER_DIGITAL)

 static int snd_msndmix_info_mux(struct snd_kcontrol *kcontrol,
 				struct snd_ctl_elem_info *uinfo)
 {
 	static char *texts[3] = {
 		"Analog", "MASS", "SPDIF",
 	};
 	struct snd_msnd *chip = snd_kcontrol_chip(kcontrol);
 	unsigned items = test_bit(F_HAVEDIGITAL, &chip->flags) ? 3 : 2;

 	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
 	uinfo->count = 1;
 	uinfo->value.enumerated.items = items;
 	if (uinfo->value.enumerated.item >= items)
 		uinfo->value.enumerated.item = items - 1;
 	strcpy(uinfo->value.enumerated.name,
 		texts[uinfo->value.enumerated.item]);
 	return 0;
 }

 static int snd_msndmix_get_mux(struct snd_kcontrol *kcontrol,
 				struct snd_ctl_elem_value *ucontrol)
 {
 	struct snd_msnd *chip = snd_kcontrol_chip(kcontrol);
 	/* MSND_MASK_IMIX is the default */
 	ucontrol->value.enumerated.item[0] = 0;

 	if (chip->recsrc & MSND_MASK_SYNTH) {
 		ucontrol->value.enumerated.item[0] = 1;
 	} else if ((chip->recsrc & MSND_MASK_DIGITAL) &&
 		 test_bit(F_HAVEDIGITAL, &chip->flags)) {
 		ucontrol->value.enumerated.item[0] = 2;
 	}


 	return 0;
 }

 static int snd_msndmix_set_mux(struct snd_msnd *chip, int val)
 {
 	unsigned newrecsrc;
 	int change;
 	unsigned char msndbyte;

 	switch (val) {
 	case 0:
 		newrecsrc = MSND_MASK_IMIX;
 		msndbyte = HDEXAR_SET_ANA_IN;
 		break;
 	case 1:
 		newrecsrc = MSND_MASK_SYNTH;
 		msndbyte = HDEXAR_SET_SYNTH_IN;
 		break;
 	case 2:
 		newrecsrc = MSND_MASK_DIGITAL;
 		msndbyte = HDEXAR_SET_DAT_IN;
 		break;
 	default:
 		return -EINVAL;
 	}
 	change  = newrecsrc != chip->recsrc;
 	if (change) {
 		change = 0;
 		if (!snd_msnd_send_word(chip, 0, 0, msndbyte))
 			if (!snd_msnd_send_dsp_cmd(chip, HDEX_AUX_REQ)) {
 				chip->recsrc = newrecsrc;
 				change = 1;
 			}
 	}
 	return change;
 }

 static int snd_msndmix_put_mux(struct snd_kcontrol *kcontrol,
 				struct snd_ctl_elem_value *ucontrol)
 {
 	struct snd_msnd *msnd = snd_kcontrol_chip(kcontrol);
 	return snd_msndmix_set_mux(msnd, ucontrol->value.enumerated.item[0]);
 }


 static int snd_msndmix_volume_info(struct snd_kcontrol *kcontrol,
 				   struct snd_ctl_elem_info *uinfo)
 {
 	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
 	uinfo->count = 2;
 	uinfo->value.integer.min = 0;
 	uinfo->value.integer.max = 100;
 	return 0;
 }

 static int snd_msndmix_volume_get(struct snd_kcontrol *kcontrol,
 				  struct snd_ctl_elem_value *ucontrol)
 {
 	struct snd_msnd *msnd = snd_kcontrol_chip(kcontrol);
 	int addr = kcontrol->private_value;
 	unsigned long flags;

 	spin_lock_irqsave(&msnd->mixer_lock, flags);
 	ucontrol->value.integer.value[0] = msnd->left_levels[addr] * 100;
 	ucontrol->value.integer.value[0] /= 0xFFFF;
 	ucontrol->value.integer.value[1] = msnd->right_levels[addr] * 100;
 	ucontrol->value.integer.value[1] /= 0xFFFF;
 	spin_unlock_irqrestore(&msnd->mixer_lock, flags);
 	return 0;
 }

 #define update_volm(a, b)						\
 	do {								\
 		writew((dev->left_levels[a] >> 1) *			\
 		       readw(dev->SMA + SMA_wCurrMastVolLeft) / 0xffff,	\
 		       dev->SMA + SMA_##b##Left);			\
 		writew((dev->right_levels[a] >> 1)  *			\
 		       readw(dev->SMA + SMA_wCurrMastVolRight) / 0xffff, \
 		       dev->SMA + SMA_##b##Right);			\
 	} while (0);

 #define update_potm(d, s, ar)						\
 	do {								\
 		writeb((dev->left_levels[d] >> 8) *			\
 		       readw(dev->SMA + SMA_wCurrMastVolLeft) / 0xffff, \
 		       dev->SMA + SMA_##s##Left);			\
 		writeb((dev->right_levels[d] >> 8) *			\
 		       readw(dev->SMA + SMA_wCurrMastVolRight) / 0xffff, \
 		       dev->SMA + SMA_##s##Right);			\
 		if (snd_msnd_send_word(dev, 0, 0, ar) == 0)		\
 			snd_msnd_send_dsp_cmd(dev, HDEX_AUX_REQ);	\
 	} while (0);

 #define update_pot(d, s, ar)						\
 	do {								\
 		writeb(dev->left_levels[d] >> 8,			\
 		       dev->SMA + SMA_##s##Left);			\
 		writeb(dev->right_levels[d] >> 8,			\
 		       dev->SMA + SMA_##s##Right);			\
 		if (snd_msnd_send_word(dev, 0, 0, ar) == 0)		\
 			snd_msnd_send_dsp_cmd(dev, HDEX_AUX_REQ);	\
 	} while (0);


 static int snd_msndmix_set(struct snd_msnd *dev, int d, int left, int right)
 {
 	int bLeft, bRight;
 	int wLeft, wRight;
 	int updatemaster = 0;

 	if (d >= LEVEL_ENTRIES)
 		return -EINVAL;

 	bLeft = left * 0xff / 100;
 	wLeft = left * 0xffff / 100;

 	bRight = right * 0xff / 100;
 	wRight = right * 0xffff / 100;

 	dev->left_levels[d] = wLeft;
 	dev->right_levels[d] = wRight;

 	switch (d) {
 		/* master volume unscaled controls */
 	case MSND_MIXER_LINE:			/* line pot control */
 		/* scaled by IMIX in digital mix */
 		writeb(bLeft, dev->SMA + SMA_bInPotPosLeft);
 		writeb(bRight, dev->SMA + SMA_bInPotPosRight);
 		if (snd_msnd_send_word(dev, 0, 0, HDEXAR_IN_SET_POTS) == 0)
 			snd_msnd_send_dsp_cmd(dev, HDEX_AUX_REQ);
 		break;
 	case MSND_MIXER_MIC:			/* mic pot control */
 		if (dev->type == msndClassic)
 			return -EINVAL;
 		/* scaled by IMIX in digital mix */
 		writeb(bLeft, dev->SMA + SMA_bMicPotPosLeft);
 		writeb(bRight, dev->SMA + SMA_bMicPotPosRight);
 		if (snd_msnd_send_word(dev, 0, 0, HDEXAR_MIC_SET_POTS) == 0)
 			snd_msnd_send_dsp_cmd(dev, HDEX_AUX_REQ);
 		break;
 	case MSND_MIXER_VOLUME:		/* master volume */
 		writew(wLeft, dev->SMA + SMA_wCurrMastVolLeft);
 		writew(wRight, dev->SMA + SMA_wCurrMastVolRight);
 		/* fall through */

 	case MSND_MIXER_AUX:			/* aux pot control */
 		/* scaled by master volume */
 		/* fall through */

 		/* digital controls */
 	case MSND_MIXER_SYNTH:			/* synth vol (dsp mix) */
 	case MSND_MIXER_PCM:			/* pcm vol (dsp mix) */
 	case MSND_MIXER_IMIX:			/* input monitor (dsp mix) */
 		/* scaled by master volume */
 		updatemaster = 1;
 		break;

 	default:
 		return -EINVAL;
 	}

 	if (updatemaster) {
 		/* update master volume scaled controls */
 		update_volm(MSND_MIXER_PCM, wCurrPlayVol);
 		update_volm(MSND_MIXER_IMIX, wCurrInVol);
 		if (dev->type == msndPinnacle)
 			update_volm(MSND_MIXER_SYNTH, wCurrMHdrVol);
 		update_potm(MSND_MIXER_AUX, bAuxPotPos, HDEXAR_AUX_SET_POTS);
 	}

 	return 0;
 }

 static int snd_msndmix_volume_put(struct snd_kcontrol *kcontrol,
 				  struct snd_ctl_elem_value *ucontrol)
 {
 	struct snd_msnd *msnd = snd_kcontrol_chip(kcontrol);
 	int change, addr = kcontrol->private_value;
 	int left, right;
 	unsigned long flags;

 	left = ucontrol->value.integer.value[0] % 101;
 	right = ucontrol->value.integer.value[1] % 101;
 	spin_lock_irqsave(&msnd->mixer_lock, flags);
 	change = msnd->left_levels[addr] != left
 		|| msnd->right_levels[addr] != right;
 	snd_msndmix_set(msnd, addr, left, right);
 	spin_unlock_irqrestore(&msnd->mixer_lock, flags);
 	return change;
 }


 #define DUMMY_VOLUME(xname, xindex, addr) \
 { .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
   .info = snd_msndmix_volume_info, \
   .get = snd_msndmix_volume_get, .put = snd_msndmix_volume_put, \
   .private_value = addr }


 static struct snd_kcontrol_new snd_msnd_controls[] = {
 DUMMY_VOLUME("Master Volume", 0, MSND_MIXER_VOLUME),
 DUMMY_VOLUME("PCM Volume", 0, MSND_MIXER_PCM),
 DUMMY_VOLUME("Aux Volume", 0, MSND_MIXER_AUX),
 DUMMY_VOLUME("Line Volume", 0, MSND_MIXER_LINE),
 DUMMY_VOLUME("Mic Volume", 0, MSND_MIXER_MIC),
 DUMMY_VOLUME("Monitor",	0, MSND_MIXER_IMIX),
 {
 	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
 	.name = "Capture Source",
 	.info = snd_msndmix_info_mux,
 	.get = snd_msndmix_get_mux,
 	.put = snd_msndmix_put_mux,
 }
 };


 int __devinit snd_msndmix_new(struct snd_card *card)
 {
 	struct snd_msnd *chip = card->private_data;
 	unsigned int idx;
 	int err;

 	if (snd_BUG_ON(!chip))
 		return -EINVAL;
 	spin_lock_init(&chip->mixer_lock);
 	strcpy(card->mixername, "MSND Pinnacle Mixer");

 	for (idx = 0; idx < ARRAY_SIZE(snd_msnd_controls); idx++)
 		err = snd_ctl_add(card,
 				  snd_ctl_new1(snd_msnd_controls + idx, chip));
 		if (err < 0)
 			return err;

 	return 0;
 }
 EXPORT_SYMBOL(snd_msndmix_new);

 void snd_msndmix_setup(struct snd_msnd *dev)
 {
 	update_pot(MSND_MIXER_LINE, bInPotPos, HDEXAR_IN_SET_POTS);
 	update_potm(MSND_MIXER_AUX, bAuxPotPos, HDEXAR_AUX_SET_POTS);
 	update_volm(MSND_MIXER_PCM, wCurrPlayVol);
 	update_volm(MSND_MIXER_IMIX, wCurrInVol);
 	if (dev->type == msndPinnacle) {
 		update_pot(MSND_MIXER_MIC, bMicPotPos, HDEXAR_MIC_SET_POTS);
 		update_volm(MSND_MIXER_SYNTH, wCurrMHdrVol);
 	}
 }
 EXPORT_SYMBOL(snd_msndmix_setup);

 int snd_msndmix_force_recsrc(struct snd_msnd *dev, int recsrc)
 {
 	dev->recsrc = -1;
 	return snd_msndmix_set_mux(dev, recsrc);
 }
 EXPORT_SYMBOL(snd_msndmix_force_recsrc);
	/***************************************************************************
	msnd_pinnacle_mixer.c - description
	-------------------
	begin : Fre Jun 7 2002
	copyright : (C) 2002 by karsten wiese
	email : annabellesgarden@yahoo.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. *
	* *
	***************************************************************************/

	#include <linux/io.h>

	#include <sound/core.h>
	#include <sound/control.h>
	#include "msnd.h"
	#include "msnd_pinnacle.h"


	#define MSND_MIXER_VOLUME 0
	#define MSND_MIXER_PCM 1
	#define MSND_MIXER_AUX 2 /* Input source 1 (aux1) */
	#define MSND_MIXER_IMIX 3 /* Recording monitor */
	#define MSND_MIXER_SYNTH 4
	#define MSND_MIXER_SPEAKER 5
	#define MSND_MIXER_LINE 6
	#define MSND_MIXER_MIC 7
	#define MSND_MIXER_RECLEV 11 /* Recording level */
	#define MSND_MIXER_IGAIN 12 /* Input gain */
	#define MSND_MIXER_OGAIN 13 /* Output gain */
	#define MSND_MIXER_DIGITAL 17 /* Digital (input) 1 */

	/* Device mask bits */

	#define MSND_MASK_VOLUME (1 << MSND_MIXER_VOLUME)
	#define MSND_MASK_SYNTH (1 << MSND_MIXER_SYNTH)
	#define MSND_MASK_PCM (1 << MSND_MIXER_PCM)
	#define MSND_MASK_SPEAKER (1 << MSND_MIXER_SPEAKER)
	#define MSND_MASK_LINE (1 << MSND_MIXER_LINE)
	#define MSND_MASK_MIC (1 << MSND_MIXER_MIC)
	#define MSND_MASK_IMIX (1 << MSND_MIXER_IMIX)
	#define MSND_MASK_RECLEV (1 << MSND_MIXER_RECLEV)
	#define MSND_MASK_IGAIN (1 << MSND_MIXER_IGAIN)
	#define MSND_MASK_OGAIN (1 << MSND_MIXER_OGAIN)
	#define MSND_MASK_AUX (1 << MSND_MIXER_AUX)
	#define MSND_MASK_DIGITAL (1 << MSND_MIXER_DIGITAL)

	static int snd_msndmix_info_mux(struct snd_kcontrol *kcontrol,
	struct snd_ctl_elem_info *uinfo)
	{
	static char *texts[3] = {
	"Analog", "MASS", "SPDIF",
	};
	struct snd_msnd *chip = snd_kcontrol_chip(kcontrol);
	unsigned items = test_bit(F_HAVEDIGITAL, &chip->flags) ? 3 : 2;

	uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
	uinfo->count = 1;
	uinfo->value.enumerated.items = items;
	if (uinfo->value.enumerated.item >= items)
	uinfo->value.enumerated.item = items - 1;
	strcpy(uinfo->value.enumerated.name,
	texts[uinfo->value.enumerated.item]);
	return 0;
	}

	static int snd_msndmix_get_mux(struct snd_kcontrol *kcontrol,
	struct snd_ctl_elem_value *ucontrol)
	{
	struct snd_msnd *chip = snd_kcontrol_chip(kcontrol);
	/* MSND_MASK_IMIX is the default */
	ucontrol->value.enumerated.item[0] = 0;

	if (chip->recsrc & MSND_MASK_SYNTH) {
	ucontrol->value.enumerated.item[0] = 1;
	} else if ((chip->recsrc & MSND_MASK_DIGITAL) &&
	test_bit(F_HAVEDIGITAL, &chip->flags)) {
	ucontrol->value.enumerated.item[0] = 2;
	}


	return 0;
	}

	static int snd_msndmix_set_mux(struct snd_msnd *chip, int val)
	{
	unsigned newrecsrc;
	int change;
	unsigned char msndbyte;

	switch (val) {
	case 0:
	newrecsrc = MSND_MASK_IMIX;
	msndbyte = HDEXAR_SET_ANA_IN;
	break;
	case 1:
	newrecsrc = MSND_MASK_SYNTH;
	msndbyte = HDEXAR_SET_SYNTH_IN;
	break;
	case 2:
	newrecsrc = MSND_MASK_DIGITAL;
	msndbyte = HDEXAR_SET_DAT_IN;
	break;
	default:
	return -EINVAL;
	}
	change = newrecsrc != chip->recsrc;
	if (change) {
	change = 0;
	if (!snd_msnd_send_word(chip, 0, 0, msndbyte))
	if (!snd_msnd_send_dsp_cmd(chip, HDEX_AUX_REQ)) {
	chip->recsrc = newrecsrc;
	change = 1;
	}
	}
	return change;
	}

	static int snd_msndmix_put_mux(struct snd_kcontrol *kcontrol,
	struct snd_ctl_elem_value *ucontrol)
	{
	struct snd_msnd *msnd = snd_kcontrol_chip(kcontrol);
	return snd_msndmix_set_mux(msnd, ucontrol->value.enumerated.item[0]);
	}


	static int snd_msndmix_volume_info(struct snd_kcontrol *kcontrol,
	struct snd_ctl_elem_info *uinfo)
	{
	uinfo->type = SNDRV_CTL_ELEM_TYPE_INTEGER;
	uinfo->count = 2;
	uinfo->value.integer.min = 0;
	uinfo->value.integer.max = 100;
	return 0;
	}

	static int snd_msndmix_volume_get(struct snd_kcontrol *kcontrol,
	struct snd_ctl_elem_value *ucontrol)
	{
	struct snd_msnd *msnd = snd_kcontrol_chip(kcontrol);
	int addr = kcontrol->private_value;
	unsigned long flags;

	spin_lock_irqsave(&msnd->mixer_lock, flags);
	ucontrol->value.integer.value[0] = msnd->left_levels[addr] * 100;
	ucontrol->value.integer.value[0] /= 0xFFFF;
	ucontrol->value.integer.value[1] = msnd->right_levels[addr] * 100;
	ucontrol->value.integer.value[1] /= 0xFFFF;
	spin_unlock_irqrestore(&msnd->mixer_lock, flags);
	return 0;
	}

	#define update_volm(a, b) \
	do { \
	writew((dev->left_levels[a] >> 1) * \
	readw(dev->SMA + SMA_wCurrMastVolLeft) / 0xffff, \
	dev->SMA + SMA_##b##Left); \
	writew((dev->right_levels[a] >> 1) * \
	readw(dev->SMA + SMA_wCurrMastVolRight) / 0xffff, \
	dev->SMA + SMA_##b##Right); \
	} while (0);

	#define update_potm(d, s, ar) \
	do { \
	writeb((dev->left_levels[d] >> 8) * \
	readw(dev->SMA + SMA_wCurrMastVolLeft) / 0xffff, \
	dev->SMA + SMA_##s##Left); \
	writeb((dev->right_levels[d] >> 8) * \
	readw(dev->SMA + SMA_wCurrMastVolRight) / 0xffff, \
	dev->SMA + SMA_##s##Right); \
	if (snd_msnd_send_word(dev, 0, 0, ar) == 0) \
	snd_msnd_send_dsp_cmd(dev, HDEX_AUX_REQ); \
	} while (0);

	#define update_pot(d, s, ar) \
	do { \
	writeb(dev->left_levels[d] >> 8, \
	dev->SMA + SMA_##s##Left); \
	writeb(dev->right_levels[d] >> 8, \
	dev->SMA + SMA_##s##Right); \
	if (snd_msnd_send_word(dev, 0, 0, ar) == 0) \
	snd_msnd_send_dsp_cmd(dev, HDEX_AUX_REQ); \
	} while (0);


	static int snd_msndmix_set(struct snd_msnd *dev, int d, int left, int right)
	{
	int bLeft, bRight;
	int wLeft, wRight;
	int updatemaster = 0;

	if (d >= LEVEL_ENTRIES)
	return -EINVAL;

	bLeft = left * 0xff / 100;
	wLeft = left * 0xffff / 100;

	bRight = right * 0xff / 100;
	wRight = right * 0xffff / 100;

	dev->left_levels[d] = wLeft;
	dev->right_levels[d] = wRight;

	switch (d) {
	/* master volume unscaled controls */
	case MSND_MIXER_LINE: /* line pot control */
	/* scaled by IMIX in digital mix */
	writeb(bLeft, dev->SMA + SMA_bInPotPosLeft);
	writeb(bRight, dev->SMA + SMA_bInPotPosRight);
	if (snd_msnd_send_word(dev, 0, 0, HDEXAR_IN_SET_POTS) == 0)
	snd_msnd_send_dsp_cmd(dev, HDEX_AUX_REQ);
	break;
	case MSND_MIXER_MIC: /* mic pot control */
	if (dev->type == msndClassic)
	return -EINVAL;
	/* scaled by IMIX in digital mix */
	writeb(bLeft, dev->SMA + SMA_bMicPotPosLeft);
	writeb(bRight, dev->SMA + SMA_bMicPotPosRight);
	if (snd_msnd_send_word(dev, 0, 0, HDEXAR_MIC_SET_POTS) == 0)
	snd_msnd_send_dsp_cmd(dev, HDEX_AUX_REQ);
	break;
	case MSND_MIXER_VOLUME: /* master volume */
	writew(wLeft, dev->SMA + SMA_wCurrMastVolLeft);
	writew(wRight, dev->SMA + SMA_wCurrMastVolRight);
	/* fall through */

	case MSND_MIXER_AUX: /* aux pot control */
	/* scaled by master volume */
	/* fall through */

	/* digital controls */
	case MSND_MIXER_SYNTH: /* synth vol (dsp mix) */
	case MSND_MIXER_PCM: /* pcm vol (dsp mix) */
	case MSND_MIXER_IMIX: /* input monitor (dsp mix) */
	/* scaled by master volume */
	updatemaster = 1;
	break;

	default:
	return -EINVAL;
	}

	if (updatemaster) {
	/* update master volume scaled controls */
	update_volm(MSND_MIXER_PCM, wCurrPlayVol);
	update_volm(MSND_MIXER_IMIX, wCurrInVol);
	if (dev->type == msndPinnacle)
	update_volm(MSND_MIXER_SYNTH, wCurrMHdrVol);
	update_potm(MSND_MIXER_AUX, bAuxPotPos, HDEXAR_AUX_SET_POTS);
	}

	return 0;
	}

	static int snd_msndmix_volume_put(struct snd_kcontrol *kcontrol,
	struct snd_ctl_elem_value *ucontrol)
	{
	struct snd_msnd *msnd = snd_kcontrol_chip(kcontrol);
	int change, addr = kcontrol->private_value;
	int left, right;
	unsigned long flags;

	left = ucontrol->value.integer.value[0] % 101;
	right = ucontrol->value.integer.value[1] % 101;
	spin_lock_irqsave(&msnd->mixer_lock, flags);
	change = msnd->left_levels[addr] != left
	\|\| msnd->right_levels[addr] != right;
	snd_msndmix_set(msnd, addr, left, right);
	spin_unlock_irqrestore(&msnd->mixer_lock, flags);
	return change;
	}


	#define DUMMY_VOLUME(xname, xindex, addr) \
	{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname, .index = xindex, \
	.info = snd_msndmix_volume_info, \
	.get = snd_msndmix_volume_get, .put = snd_msndmix_volume_put, \
	.private_value = addr }


	static struct snd_kcontrol_new snd_msnd_controls[] = {
	DUMMY_VOLUME("Master Volume", 0, MSND_MIXER_VOLUME),
	DUMMY_VOLUME("PCM Volume", 0, MSND_MIXER_PCM),
	DUMMY_VOLUME("Aux Volume", 0, MSND_MIXER_AUX),
	DUMMY_VOLUME("Line Volume", 0, MSND_MIXER_LINE),
	DUMMY_VOLUME("Mic Volume", 0, MSND_MIXER_MIC),
	DUMMY_VOLUME("Monitor", 0, MSND_MIXER_IMIX),
	{
	.iface = SNDRV_CTL_ELEM_IFACE_MIXER,
	.name = "Capture Source",
	.info = snd_msndmix_info_mux,
	.get = snd_msndmix_get_mux,
	.put = snd_msndmix_put_mux,
	}
	};


	int __devinit snd_msndmix_new(struct snd_card *card)
	{
	struct snd_msnd *chip = card->private_data;
	unsigned int idx;
	int err;

	if (snd_BUG_ON(!chip))
	return -EINVAL;
	spin_lock_init(&chip->mixer_lock);
	strcpy(card->mixername, "MSND Pinnacle Mixer");

	for (idx = 0; idx < ARRAY_SIZE(snd_msnd_controls); idx++)
	err = snd_ctl_add(card,
	snd_ctl_new1(snd_msnd_controls + idx, chip));
	if (err < 0)
	return err;

	return 0;
	}
	EXPORT_SYMBOL(snd_msndmix_new);

	void snd_msndmix_setup(struct snd_msnd *dev)
	{
	update_pot(MSND_MIXER_LINE, bInPotPos, HDEXAR_IN_SET_POTS);
	update_potm(MSND_MIXER_AUX, bAuxPotPos, HDEXAR_AUX_SET_POTS);
	update_volm(MSND_MIXER_PCM, wCurrPlayVol);
	update_volm(MSND_MIXER_IMIX, wCurrInVol);
	if (dev->type == msndPinnacle) {
	update_pot(MSND_MIXER_MIC, bMicPotPos, HDEXAR_MIC_SET_POTS);
	update_volm(MSND_MIXER_SYNTH, wCurrMHdrVol);
	}
	}
	EXPORT_SYMBOL(snd_msndmix_setup);

	int snd_msndmix_force_recsrc(struct snd_msnd *dev, int recsrc)
	{
	dev->recsrc = -1;
	return snd_msndmix_set_mux(dev, recsrc);
	}
	EXPORT_SYMBOL(snd_msndmix_force_recsrc);