Linux-2.6.12-rc2v2.6.12-rc2

Initial git repository build. I'm not bothering with the full history,
even though we have it. We can create a separate "historical" git
archive of that later if we want to, and in the meantime it's about
3.2GB when imported into git - space that would just make the early
git days unnecessarily complicated, when we don't have a lot of good
infrastructure for it.

Let it rip!

1 files changed, 1340 insertions, 0 deletions

diff --git a/sound/core/oss/mixer_oss.c b/sound/core/oss/mixer_oss.c
new file mode 100644
index 00000000000..98ed9a9f0da
--- /dev/null
+++ b/sound/core/oss/mixer_oss.c
@@ -0,0 +1,1340 @@
+/*
+ *  OSS emulation layer for the mixer interface
+ *  Copyright (c) by Jaroslav Kysela <perex@suse.cz>
+ *
+ *
+ *   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 <linux/init.h>
+#include <linux/smp_lock.h>
+#include <linux/slab.h>
+#include <linux/time.h>
+#include <sound/core.h>
+#include <sound/minors.h>
+#include <sound/control.h>
+#include <sound/info.h>
+#include <sound/mixer_oss.h>
+#include <linux/soundcard.h>
+
+#define OSS_ALSAEMULVER         _SIOR ('M', 249, int)
+
+MODULE_AUTHOR("Jaroslav Kysela <perex@suse.cz>");
+MODULE_DESCRIPTION("Mixer OSS emulation for ALSA.");
+MODULE_LICENSE("GPL");
+MODULE_ALIAS_SNDRV_MINOR(SNDRV_MINOR_OSS_MIXER);
+
+static int snd_mixer_oss_open(struct inode *inode, struct file *file)
+{
+	int cardnum = SNDRV_MINOR_OSS_CARD(iminor(inode));
+	snd_card_t *card;
+	snd_mixer_oss_file_t *fmixer;
+	int err;
+
+	if ((card = snd_cards[cardnum]) == NULL)
+		return -ENODEV;
+	if (card->mixer_oss == NULL)
+		return -ENODEV;
+	err = snd_card_file_add(card, file);
+	if (err < 0)
+		return err;
+	fmixer = kcalloc(1, sizeof(*fmixer), GFP_KERNEL);
+	if (fmixer == NULL) {
+		snd_card_file_remove(card, file);
+		return -ENOMEM;
+	}
+	fmixer->card = card;
+	fmixer->mixer = card->mixer_oss;
+	file->private_data = fmixer;
+	if (!try_module_get(card->module)) {
+		kfree(fmixer);
+		snd_card_file_remove(card, file);
+		return -EFAULT;
+	}
+	return 0;
+}
+
+static int snd_mixer_oss_release(struct inode *inode, struct file *file)
+{
+	snd_mixer_oss_file_t *fmixer;
+
+	if (file->private_data) {
+		fmixer = (snd_mixer_oss_file_t *) file->private_data;
+		module_put(fmixer->card->module);
+		snd_card_file_remove(fmixer->card, file);
+		kfree(fmixer);
+	}
+	return 0;
+}
+
+static int snd_mixer_oss_info(snd_mixer_oss_file_t *fmixer,
+			      mixer_info __user *_info)
+{
+	snd_card_t *card = fmixer->card;
+	snd_mixer_oss_t *mixer = fmixer->mixer;
+	struct mixer_info info;
+	
+	memset(&info, 0, sizeof(info));
+	strlcpy(info.id, mixer && mixer->id[0] ? mixer->id : card->driver, sizeof(info.id));
+	strlcpy(info.name, mixer && mixer->name[0] ? mixer->name : card->mixername, sizeof(info.name));
+	info.modify_counter = card->mixer_oss_change_count;
+	if (copy_to_user(_info, &info, sizeof(info)))
+		return -EFAULT;
+	return 0;
+}
+
+static int snd_mixer_oss_info_obsolete(snd_mixer_oss_file_t *fmixer,
+				       _old_mixer_info __user *_info)
+{
+	snd_card_t *card = fmixer->card;
+	snd_mixer_oss_t *mixer = fmixer->mixer;
+	_old_mixer_info info;
+	
+	memset(&info, 0, sizeof(info));
+	strlcpy(info.id, mixer && mixer->id[0] ? mixer->id : card->driver, sizeof(info.id));
+	strlcpy(info.name, mixer && mixer->name[0] ? mixer->name : card->mixername, sizeof(info.name));
+	if (copy_to_user(_info, &info, sizeof(info)))
+		return -EFAULT;
+	return 0;
+}
+
+static int snd_mixer_oss_caps(snd_mixer_oss_file_t *fmixer)
+{
+	snd_mixer_oss_t *mixer = fmixer->mixer;
+	int result = 0;
+
+	if (mixer == NULL)
+		return -EIO;
+	if (mixer->get_recsrc && mixer->put_recsrc)
+		result |= SOUND_CAP_EXCL_INPUT;
+	return result;
+}
+
+static int snd_mixer_oss_devmask(snd_mixer_oss_file_t *fmixer)
+{
+	snd_mixer_oss_t *mixer = fmixer->mixer;
+	snd_mixer_oss_slot_t *pslot;
+	int result = 0, chn;
+
+	if (mixer == NULL)
+		return -EIO;
+	for (chn = 0; chn < 31; chn++) {
+		pslot = &mixer->slots[chn];
+		if (pslot->put_volume || pslot->put_recsrc)
+			result |= 1 << chn;
+	}
+	return result;
+}
+
+static int snd_mixer_oss_stereodevs(snd_mixer_oss_file_t *fmixer)
+{
+	snd_mixer_oss_t *mixer = fmixer->mixer;
+	snd_mixer_oss_slot_t *pslot;
+	int result = 0, chn;
+
+	if (mixer == NULL)
+		return -EIO;
+	for (chn = 0; chn < 31; chn++) {
+		pslot = &mixer->slots[chn];
+		if (pslot->put_volume && pslot->stereo)
+			result |= 1 << chn;
+	}
+	return result;
+}
+
+static int snd_mixer_oss_recmask(snd_mixer_oss_file_t *fmixer)
+{
+	snd_mixer_oss_t *mixer = fmixer->mixer;
+	int result = 0;
+
+	if (mixer == NULL)
+		return -EIO;
+	if (mixer->put_recsrc && mixer->get_recsrc) {	/* exclusive */
+		result = mixer->mask_recsrc;
+	} else {
+		snd_mixer_oss_slot_t *pslot;
+		int chn;
+		for (chn = 0; chn < 31; chn++) {
+			pslot = &mixer->slots[chn];
+			if (pslot->put_recsrc)
+				result |= 1 << chn;
+		}
+	}
+	return result;
+}
+
+static int snd_mixer_oss_get_recsrc(snd_mixer_oss_file_t *fmixer)
+{
+	snd_mixer_oss_t *mixer = fmixer->mixer;
+	int result = 0;
+
+	if (mixer == NULL)
+		return -EIO;
+	if (mixer->put_recsrc && mixer->get_recsrc) {	/* exclusive */
+		int err;
+		if ((err = mixer->get_recsrc(fmixer, &result)) < 0)
+			return err;
+		result = 1 << result;
+	} else {
+		snd_mixer_oss_slot_t *pslot;
+		int chn;
+		for (chn = 0; chn < 31; chn++) {
+			pslot = &mixer->slots[chn];
+			if (pslot->get_recsrc) {
+				int active = 0;
+				pslot->get_recsrc(fmixer, pslot, &active);
+				if (active)
+					result |= 1 << chn;
+			}
+		}
+	}
+	return mixer->oss_recsrc = result;
+}
+
+static int snd_mixer_oss_set_recsrc(snd_mixer_oss_file_t *fmixer, int recsrc)
+{
+	snd_mixer_oss_t *mixer = fmixer->mixer;
+	snd_mixer_oss_slot_t *pslot;
+	int chn, active;
+	int result = 0;
+
+	if (mixer == NULL)
+		return -EIO;
+	if (mixer->get_recsrc && mixer->put_recsrc) {	/* exclusive input */
+		if (recsrc & ~mixer->oss_recsrc)
+			recsrc &= ~mixer->oss_recsrc;
+		mixer->put_recsrc(fmixer, ffz(~recsrc));
+		mixer->get_recsrc(fmixer, &result);
+		result = 1 << result;
+	}
+	for (chn = 0; chn < 31; chn++) {
+		pslot = &mixer->slots[chn];
+		if (pslot->put_recsrc) {
+			active = (recsrc & (1 << chn)) ? 1 : 0;
+			pslot->put_recsrc(fmixer, pslot, active);
+		}
+	}
+	if (! result) {
+		for (chn = 0; chn < 31; chn++) {
+			pslot = &mixer->slots[chn];
+			if (pslot->get_recsrc) {
+				active = 0;
+				pslot->get_recsrc(fmixer, pslot, &active);
+				if (active)
+					result |= 1 << chn;
+			}
+		}
+	}
+	return result;
+}
+
+static int snd_mixer_oss_get_volume(snd_mixer_oss_file_t *fmixer, int slot)
+{
+	snd_mixer_oss_t *mixer = fmixer->mixer;
+	snd_mixer_oss_slot_t *pslot;
+	int result = 0, left, right;
+
+	if (mixer == NULL || slot > 30)
+		return -EIO;
+	pslot = &mixer->slots[slot];
+	left = pslot->volume[0];
+	right = pslot->volume[1];
+	if (pslot->get_volume)
+		result = pslot->get_volume(fmixer, pslot, &left, &right);
+	if (!pslot->stereo)
+		right = left;
+	snd_assert(left >= 0 && left <= 100, return -EIO);
+	snd_assert(right >= 0 && right <= 100, return -EIO);
+	if (result >= 0) {
+		pslot->volume[0] = left;
+		pslot->volume[1] = right;
+	 	result = (left & 0xff) | ((right & 0xff) << 8);
+	}
+	return result;
+}
+
+static int snd_mixer_oss_set_volume(snd_mixer_oss_file_t *fmixer,
+				    int slot, int volume)
+{
+	snd_mixer_oss_t *mixer = fmixer->mixer;
+	snd_mixer_oss_slot_t *pslot;
+	int result = 0, left = volume & 0xff, right = (volume >> 8) & 0xff;
+
+	if (mixer == NULL || slot > 30)
+		return -EIO;
+	pslot = &mixer->slots[slot];
+	if (left > 100)
+		left = 100;
+	if (right > 100)
+		right = 100;
+	if (!pslot->stereo)
+		right = left;
+	if (pslot->put_volume)
+		result = pslot->put_volume(fmixer, pslot, left, right);
+	if (result < 0)
+		return result;
+	pslot->volume[0] = left;
+	pslot->volume[1] = right;
+ 	return (left & 0xff) | ((right & 0xff) << 8);
+}
+
+static int snd_mixer_oss_ioctl1(snd_mixer_oss_file_t *fmixer, unsigned int cmd, unsigned long arg)
+{
+	void __user *argp = (void __user *)arg;
+	int __user *p = argp;
+	int tmp;
+
+	snd_assert(fmixer != NULL, return -ENXIO);
+	if (((cmd >> 8) & 0xff) == 'M') {
+		switch (cmd) {
+		case SOUND_MIXER_INFO:
+			return snd_mixer_oss_info(fmixer, argp);
+		case SOUND_OLD_MIXER_INFO:
+ 			return snd_mixer_oss_info_obsolete(fmixer, argp);
+		case SOUND_MIXER_WRITE_RECSRC:
+			if (get_user(tmp, p))
+				return -EFAULT;
+			tmp = snd_mixer_oss_set_recsrc(fmixer, tmp);
+			if (tmp < 0)
+				return tmp;
+			return put_user(tmp, p);
+		case OSS_GETVERSION:
+			return put_user(SNDRV_OSS_VERSION, p);
+		case OSS_ALSAEMULVER:
+			return put_user(1, p);
+		case SOUND_MIXER_READ_DEVMASK:
+			tmp = snd_mixer_oss_devmask(fmixer);
+			if (tmp < 0)
+				return tmp;
+			return put_user(tmp, p);
+		case SOUND_MIXER_READ_STEREODEVS:
+			tmp = snd_mixer_oss_stereodevs(fmixer);
+			if (tmp < 0)
+				return tmp;
+			return put_user(tmp, p);
+		case SOUND_MIXER_READ_RECMASK:
+			tmp = snd_mixer_oss_recmask(fmixer);
+			if (tmp < 0)
+				return tmp;
+			return put_user(tmp, p);
+		case SOUND_MIXER_READ_CAPS:
+			tmp = snd_mixer_oss_caps(fmixer);
+			if (tmp < 0)
+				return tmp;
+			return put_user(tmp, p);
+		case SOUND_MIXER_READ_RECSRC:
+			tmp = snd_mixer_oss_get_recsrc(fmixer);
+			if (tmp < 0)
+				return tmp;
+			return put_user(tmp, p);
+		}
+	}
+	if (cmd & SIOC_IN) {
+		if (get_user(tmp, p))
+			return -EFAULT;
+		tmp = snd_mixer_oss_set_volume(fmixer, cmd & 0xff, tmp);
+		if (tmp < 0)
+			return tmp;
+		return put_user(tmp, p);
+	} else if (cmd & SIOC_OUT) {
+		tmp = snd_mixer_oss_get_volume(fmixer, cmd & 0xff);
+		if (tmp < 0)
+			return tmp;
+		return put_user(tmp, p);
+	}
+	return -ENXIO;
+}
+
+static long snd_mixer_oss_ioctl(struct file *file, unsigned int cmd, unsigned long arg)
+{
+	return snd_mixer_oss_ioctl1((snd_mixer_oss_file_t *) file->private_data, cmd, arg);
+}
+
+int snd_mixer_oss_ioctl_card(snd_card_t *card, unsigned int cmd, unsigned long arg)
+{
+	snd_mixer_oss_file_t fmixer;
+	
+	snd_assert(card != NULL, return -ENXIO);
+	if (card->mixer_oss == NULL)
+		return -ENXIO;
+	memset(&fmixer, 0, sizeof(fmixer));
+	fmixer.card = card;
+	fmixer.mixer = card->mixer_oss;
+	return snd_mixer_oss_ioctl1(&fmixer, cmd, arg);
+}
+
+#ifdef CONFIG_COMPAT
+/* all compatible */
+#define snd_mixer_oss_ioctl_compat	snd_mixer_oss_ioctl
+#else
+#define snd_mixer_oss_ioctl_compat	NULL
+#endif
+
+/*
+ *  REGISTRATION PART
+ */
+
+static struct file_operations snd_mixer_oss_f_ops =
+{
+	.owner =	THIS_MODULE,
+	.open =		snd_mixer_oss_open,
+	.release =	snd_mixer_oss_release,
+	.unlocked_ioctl =	snd_mixer_oss_ioctl,
+	.compat_ioctl =	snd_mixer_oss_ioctl_compat,
+};
+
+static snd_minor_t snd_mixer_oss_reg =
+{
+	.comment =	"mixer",
+	.f_ops =	&snd_mixer_oss_f_ops,
+};
+
+/*
+ *  utilities
+ */
+
+static long snd_mixer_oss_conv(long val, long omin, long omax, long nmin, long nmax)
+{
+	long orange = omax - omin, nrange = nmax - nmin;
+	
+	if (orange == 0)
+		return 0;
+	return ((nrange * (val - omin)) + (orange / 2)) / orange + nmin;
+}
+
+/* convert from alsa native to oss values (0-100) */
+static long snd_mixer_oss_conv1(long val, long min, long max, int *old)
+{
+	if (val == snd_mixer_oss_conv(*old, 0, 100, min, max))
+		return *old;
+	return snd_mixer_oss_conv(val, min, max, 0, 100);
+}
+
+/* convert from oss to alsa native values */
+static long snd_mixer_oss_conv2(long val, long min, long max)
+{
+	return snd_mixer_oss_conv(val, 0, 100, min, max);
+}
+
+#if 0
+static void snd_mixer_oss_recsrce_set(snd_card_t *card, int slot)
+{
+	snd_mixer_oss_t *mixer = card->mixer_oss;
+	if (mixer)
+		mixer->mask_recsrc |= 1 << slot;
+}
+
+static int snd_mixer_oss_recsrce_get(snd_card_t *card, int slot)
+{
+	snd_mixer_oss_t *mixer = card->mixer_oss;
+	if (mixer && (mixer->mask_recsrc & (1 << slot)))
+		return 1;
+	return 0;
+}
+#endif
+
+#define SNDRV_MIXER_OSS_SIGNATURE		0x65999250
+
+#define SNDRV_MIXER_OSS_ITEM_GLOBAL	0
+#define SNDRV_MIXER_OSS_ITEM_GSWITCH	1
+#define SNDRV_MIXER_OSS_ITEM_GROUTE	2
+#define SNDRV_MIXER_OSS_ITEM_GVOLUME	3
+#define SNDRV_MIXER_OSS_ITEM_PSWITCH	4
+#define SNDRV_MIXER_OSS_ITEM_PROUTE	5
+#define SNDRV_MIXER_OSS_ITEM_PVOLUME	6
+#define SNDRV_MIXER_OSS_ITEM_CSWITCH	7
+#define SNDRV_MIXER_OSS_ITEM_CROUTE	8
+#define SNDRV_MIXER_OSS_ITEM_CVOLUME	9
+#define SNDRV_MIXER_OSS_ITEM_CAPTURE	10
+
+#define SNDRV_MIXER_OSS_ITEM_COUNT	11
+
+#define SNDRV_MIXER_OSS_PRESENT_GLOBAL	(1<<0)
+#define SNDRV_MIXER_OSS_PRESENT_GSWITCH	(1<<1)
+#define SNDRV_MIXER_OSS_PRESENT_GROUTE	(1<<2)
+#define SNDRV_MIXER_OSS_PRESENT_GVOLUME	(1<<3)
+#define SNDRV_MIXER_OSS_PRESENT_PSWITCH	(1<<4)
+#define SNDRV_MIXER_OSS_PRESENT_PROUTE	(1<<5)
+#define SNDRV_MIXER_OSS_PRESENT_PVOLUME	(1<<6)
+#define SNDRV_MIXER_OSS_PRESENT_CSWITCH	(1<<7)
+#define SNDRV_MIXER_OSS_PRESENT_CROUTE	(1<<8)
+#define SNDRV_MIXER_OSS_PRESENT_CVOLUME	(1<<9)
+#define SNDRV_MIXER_OSS_PRESENT_CAPTURE	(1<<10)
+
+struct slot {
+	unsigned int signature;
+	unsigned int present;
+	unsigned int channels;
+	unsigned int numid[SNDRV_MIXER_OSS_ITEM_COUNT];
+	unsigned int capture_item;
+	struct snd_mixer_oss_assign_table *assigned;
+	unsigned int allocated: 1;
+};
+
+#define ID_UNKNOWN	((unsigned int)-1)
+
+static snd_kcontrol_t *snd_mixer_oss_test_id(snd_mixer_oss_t *mixer, const char *name, int index)
+{
+	snd_card_t * card = mixer->card;
+	snd_ctl_elem_id_t id;
+	
+	memset(&id, 0, sizeof(id));
+	id.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
+	strcpy(id.name, name);
+	id.index = index;
+	return snd_ctl_find_id(card, &id);
+}
+
+static void snd_mixer_oss_get_volume1_vol(snd_mixer_oss_file_t *fmixer,
+					  snd_mixer_oss_slot_t *pslot,
+					  unsigned int numid,
+					  int *left, int *right)
+{
+	snd_ctl_elem_info_t *uinfo;
+	snd_ctl_elem_value_t *uctl;
+	snd_kcontrol_t *kctl;
+	snd_card_t *card = fmixer->card;
+
+	if (numid == ID_UNKNOWN)
+		return;
+	down_read(&card->controls_rwsem);
+	if ((kctl = snd_ctl_find_numid(card, numid)) == NULL) {
+		up_read(&card->controls_rwsem);
+		return;
+	}
+	uinfo = kcalloc(1, sizeof(*uinfo), GFP_KERNEL);
+	uctl = kcalloc(1, sizeof(*uctl), GFP_KERNEL);
+	if (uinfo == NULL || uctl == NULL)
+		goto __unalloc;
+	snd_runtime_check(!kctl->info(kctl, uinfo), goto __unalloc);
+	snd_runtime_check(!kctl->get(kctl, uctl), goto __unalloc);
+	snd_runtime_check(uinfo->type != SNDRV_CTL_ELEM_TYPE_BOOLEAN || uinfo->value.integer.min != 0 || uinfo->value.integer.max != 1, goto __unalloc);
+	*left = snd_mixer_oss_conv1(uctl->value.integer.value[0], uinfo->value.integer.min, uinfo->value.integer.max, &pslot->volume[0]);
+	if (uinfo->count > 1)
+		*right = snd_mixer_oss_conv1(uctl->value.integer.value[1], uinfo->value.integer.min, uinfo->value.integer.max, &pslot->volume[1]);
+      __unalloc:
+	up_read(&card->controls_rwsem);
+      	kfree(uctl);
+      	kfree(uinfo);
+}
+
+static void snd_mixer_oss_get_volume1_sw(snd_mixer_oss_file_t *fmixer,
+					 snd_mixer_oss_slot_t *pslot,
+					 unsigned int numid,
+					 int *left, int *right,
+					 int route)
+{
+	snd_ctl_elem_info_t *uinfo;
+	snd_ctl_elem_value_t *uctl;
+	snd_kcontrol_t *kctl;
+	snd_card_t *card = fmixer->card;
+
+	if (numid == ID_UNKNOWN)
+		return;
+	down_read(&card->controls_rwsem);
+	if ((kctl = snd_ctl_find_numid(card, numid)) == NULL) {
+		up_read(&card->controls_rwsem);
+		return;
+	}
+	uinfo = kcalloc(1, sizeof(*uinfo), GFP_KERNEL);
+	uctl = kcalloc(1, sizeof(*uctl), GFP_KERNEL);
+	if (uinfo == NULL || uctl == NULL)
+		goto __unalloc;
+	snd_runtime_check(!kctl->info(kctl, uinfo), goto __unalloc);
+	snd_runtime_check(!kctl->get(kctl, uctl), goto __unalloc);
+	if (!uctl->value.integer.value[0]) {
+		*left = 0;
+		if (uinfo->count == 1)
+			*right = 0;
+	}
+	if (uinfo->count > 1 && !uctl->value.integer.value[route ? 3 : 1])
+		*right = 0;
+      __unalloc:
+	up_read(&card->controls_rwsem);
+      	kfree(uctl);
+	kfree(uinfo);
+}
+
+static int snd_mixer_oss_get_volume1(snd_mixer_oss_file_t *fmixer,
+				     snd_mixer_oss_slot_t *pslot,
+				     int *left, int *right)
+{
+	struct slot *slot = (struct slot *)pslot->private_data;
+	
+	*left = *right = 100;
+	if (slot->present & SNDRV_MIXER_OSS_PRESENT_PVOLUME) {
+		snd_mixer_oss_get_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PVOLUME], left, right);
+	} else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GVOLUME) {
+		snd_mixer_oss_get_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GVOLUME], left, right);
+	} else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GLOBAL) {
+		snd_mixer_oss_get_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GLOBAL], left, right);
+	}
+	if (slot->present & SNDRV_MIXER_OSS_PRESENT_PSWITCH) {
+		snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PSWITCH], left, right, 0);
+	} else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GSWITCH) {
+		snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GSWITCH], left, right, 0);
+	} else if (slot->present & SNDRV_MIXER_OSS_PRESENT_PROUTE) {
+		snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PROUTE], left, right, 1);
+	} else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GROUTE) {
+		snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GROUTE], left, right, 1);
+	}
+	return 0;
+}
+
+static void snd_mixer_oss_put_volume1_vol(snd_mixer_oss_file_t *fmixer,
+					  snd_mixer_oss_slot_t *pslot,
+					  unsigned int numid,
+					  int left, int right)
+{
+	snd_ctl_elem_info_t *uinfo;
+	snd_ctl_elem_value_t *uctl;
+	snd_kcontrol_t *kctl;
+	snd_card_t *card = fmixer->card;
+	int res;
+
+	if (numid == ID_UNKNOWN)
+		return;
+	down_read(&card->controls_rwsem);
+	if ((kctl = snd_ctl_find_numid(card, numid)) == NULL)
+		return;
+	uinfo = kcalloc(1, sizeof(*uinfo), GFP_KERNEL);
+	uctl = kcalloc(1, sizeof(*uctl), GFP_KERNEL);
+	if (uinfo == NULL || uctl == NULL)
+		goto __unalloc;
+	snd_runtime_check(!kctl->info(kctl, uinfo), goto __unalloc);
+	snd_runtime_check(uinfo->type != SNDRV_CTL_ELEM_TYPE_BOOLEAN || uinfo->value.integer.min != 0 || uinfo->value.integer.max != 1, goto __unalloc);
+	uctl->value.integer.value[0] = snd_mixer_oss_conv2(left, uinfo->value.integer.min, uinfo->value.integer.max);
+	if (uinfo->count > 1)
+		uctl->value.integer.value[1] = snd_mixer_oss_conv2(right, uinfo->value.integer.min, uinfo->value.integer.max);
+	snd_runtime_check((res = kctl->put(kctl, uctl)) >= 0, goto __unalloc);
+	if (res > 0)
+		snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, &kctl->id);
+      __unalloc:
+	up_read(&card->controls_rwsem);
+      	kfree(uctl);
+	kfree(uinfo);
+}
+
+static void snd_mixer_oss_put_volume1_sw(snd_mixer_oss_file_t *fmixer,
+					 snd_mixer_oss_slot_t *pslot,
+					 unsigned int numid,
+					 int left, int right,
+					 int route)
+{
+	snd_ctl_elem_info_t *uinfo;
+	snd_ctl_elem_value_t *uctl;
+	snd_kcontrol_t *kctl;
+	snd_card_t *card = fmixer->card;
+	int res;
+
+	if (numid == ID_UNKNOWN)
+		return;
+	down_read(&card->controls_rwsem);
+	if ((kctl = snd_ctl_find_numid(card, numid)) == NULL) {
+		up_read(&fmixer->card->controls_rwsem);
+		return;
+	}
+	uinfo = kcalloc(1, sizeof(*uinfo), GFP_KERNEL);
+	uctl = kcalloc(1, sizeof(*uctl), GFP_KERNEL);
+	if (uinfo == NULL || uctl == NULL)
+		goto __unalloc;
+	snd_runtime_check(!kctl->info(kctl, uinfo), goto __unalloc);
+	if (uinfo->count > 1) {
+		uctl->value.integer.value[0] = left > 0 ? 1 : 0;
+		uctl->value.integer.value[route ? 3 : 1] = right > 0 ? 1 : 0;
+		if (route) {
+			uctl->value.integer.value[1] =
+			uctl->value.integer.value[2] = 0;
+		}
+	} else {
+		uctl->value.integer.value[0] = (left > 0 || right > 0) ? 1 : 0;
+	}
+	snd_runtime_check((res = kctl->put(kctl, uctl)) >= 0, goto __unalloc);
+	if (res > 0)
+		snd_ctl_notify(card, SNDRV_CTL_EVENT_MASK_VALUE, &kctl->id);
+      __unalloc:
+	up_read(&card->controls_rwsem);
+      	kfree(uctl);
+	kfree(uinfo);
+}
+
+static int snd_mixer_oss_put_volume1(snd_mixer_oss_file_t *fmixer,
+				     snd_mixer_oss_slot_t *pslot,
+				     int left, int right)
+{
+	struct slot *slot = (struct slot *)pslot->private_data;
+	
+	if (slot->present & SNDRV_MIXER_OSS_PRESENT_PVOLUME) {
+		snd_mixer_oss_put_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PVOLUME], left, right);
+		if (slot->present & SNDRV_MIXER_OSS_PRESENT_CVOLUME)
+			snd_mixer_oss_put_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CVOLUME], left, right);
+	} else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GVOLUME) {
+		snd_mixer_oss_put_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GVOLUME], left, right);
+	} else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GLOBAL) {
+		snd_mixer_oss_put_volume1_vol(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GLOBAL], left, right);
+	}
+	if (left || right) {
+		if (slot->present & SNDRV_MIXER_OSS_PRESENT_PSWITCH)
+			snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PSWITCH], left, right, 0);
+		if (slot->present & SNDRV_MIXER_OSS_PRESENT_GSWITCH)
+			snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GSWITCH], left, right, 0);
+		if (slot->present & SNDRV_MIXER_OSS_PRESENT_PROUTE)
+			snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PROUTE], left, right, 1);
+		if (slot->present & SNDRV_MIXER_OSS_PRESENT_GROUTE)
+			snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GROUTE], left, right, 1);
+	} else {
+		if (slot->present & SNDRV_MIXER_OSS_PRESENT_PSWITCH) {
+			snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PSWITCH], left, right, 0);
+		} else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GSWITCH) {
+			snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GSWITCH], left, right, 0);
+		} else if (slot->present & SNDRV_MIXER_OSS_PRESENT_PROUTE) {
+			snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_PROUTE], left, right, 1);
+		} else if (slot->present & SNDRV_MIXER_OSS_PRESENT_GROUTE) {
+			snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_GROUTE], left, right, 1);
+		}
+	}
+	return 0;
+}
+
+static int snd_mixer_oss_get_recsrc1_sw(snd_mixer_oss_file_t *fmixer,
+					snd_mixer_oss_slot_t *pslot,
+					int *active)
+{
+	struct slot *slot = (struct slot *)pslot->private_data;
+	int left, right;
+	
+	left = right = 1;
+	snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CSWITCH], &left, &right, 0);
+	*active = (left || right) ? 1 : 0;
+	return 0;
+}
+
+static int snd_mixer_oss_get_recsrc1_route(snd_mixer_oss_file_t *fmixer,
+					   snd_mixer_oss_slot_t *pslot,
+					   int *active)
+{
+	struct slot *slot = (struct slot *)pslot->private_data;
+	int left, right;
+	
+	left = right = 1;
+	snd_mixer_oss_get_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CROUTE], &left, &right, 1);
+	*active = (left || right) ? 1 : 0;
+	return 0;
+}
+
+static int snd_mixer_oss_put_recsrc1_sw(snd_mixer_oss_file_t *fmixer,
+					snd_mixer_oss_slot_t *pslot,
+					int active)
+{
+	struct slot *slot = (struct slot *)pslot->private_data;
+	
+	snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CSWITCH], active, active, 0);
+	return 0;
+}
+
+static int snd_mixer_oss_put_recsrc1_route(snd_mixer_oss_file_t *fmixer,
+					   snd_mixer_oss_slot_t *pslot,
+					   int active)
+{
+	struct slot *slot = (struct slot *)pslot->private_data;
+	
+	snd_mixer_oss_put_volume1_sw(fmixer, pslot, slot->numid[SNDRV_MIXER_OSS_ITEM_CROUTE], active, active, 1);
+	return 0;
+}
+
+static int snd_mixer_oss_get_recsrc2(snd_mixer_oss_file_t *fmixer, unsigned int *active_index)
+{
+	snd_card_t *card = fmixer->card;
+	snd_mixer_oss_t *mixer = fmixer->mixer;
+	snd_kcontrol_t *kctl;
+	snd_mixer_oss_slot_t *pslot;
+	struct slot *slot;
+	snd_ctl_elem_info_t *uinfo;
+	snd_ctl_elem_value_t *uctl;
+	int err, idx;
+	
+	uinfo = kcalloc(1, sizeof(*uinfo), GFP_KERNEL);
+	uctl = kcalloc(1, sizeof(*uctl), GFP_KERNEL);
+	if (uinfo == NULL || uctl == NULL) {
+		err = -ENOMEM;
+		goto __unlock;
+	}
+	down_read(&card->controls_rwsem);
+	kctl = snd_mixer_oss_test_id(mixer, "Capture Source", 0);
+	snd_runtime_check(kctl != NULL, err = -ENOENT; goto __unlock);
+	snd_runtime_check(!(err = kctl->info(kctl, uinfo)), goto __unlock);
+	snd_runtime_check(!(err = kctl->get(kctl, uctl)), goto __unlock);
+	for (idx = 0; idx < 32; idx++) {
+		if (!(mixer->mask_recsrc & (1 << idx)))
+			continue;
+		pslot = &mixer->slots[idx];
+		slot = (struct slot *)pslot->private_data;
+		if (slot->signature != SNDRV_MIXER_OSS_SIGNATURE)
+			continue;
+		if (!(slot->present & SNDRV_MIXER_OSS_PRESENT_CAPTURE))
+			continue;
+		if (slot->capture_item == uctl->value.enumerated.item[0]) {
+			*active_index = idx;
+			break;
+		}
+	}
+	err = 0;
+      __unlock:
+     	up_read(&card->controls_rwsem);
+      	kfree(uctl);
+      	kfree(uinfo);
+      	return err;
+}
+
+static int snd_mixer_oss_put_recsrc2(snd_mixer_oss_file_t *fmixer, unsigned int active_index)
+{
+	snd_card_t *card = fmixer->card;
+	snd_mixer_oss_t *mixer = fmixer->mixer;
+	snd_kcontrol_t *kctl;
+	snd_mixer_oss_slot_t *pslot;
+	struct slot *slot = NULL;
+	snd_ctl_elem_info_t *uinfo;
+	snd_ctl_elem_value_t *uctl;
+	int err;
+	unsigned int idx;
+
+	uinfo = kcalloc(1, sizeof(*uinfo), GFP_KERNEL);
+	uctl = kcalloc(1, sizeof(*uctl), GFP_KERNEL);
+	if (uinfo == NULL || uctl == NULL) {
+		err = -ENOMEM;
+		goto __unlock;
+	}
+	down_read(&card->controls_rwsem);
+	kctl = snd_mixer_oss_test_id(mixer, "Capture Source", 0);
+	snd_runtime_check(kctl != NULL, err = -ENOENT; goto __unlock);
+	snd_runtime_check(!(err = kctl->info(kctl, uinfo)), goto __unlock);
+	for (idx = 0; idx < 32; idx++) {
+		if (!(mixer->mask_recsrc & (1 << idx)))
+			continue;
+		pslot = &mixer->slots[idx];
+		slot = (struct slot *)pslot->private_data;
+		if (slot->signature != SNDRV_MIXER_OSS_SIGNATURE)
+			continue;
+		if (!(slot->present & SNDRV_MIXER_OSS_PRESENT_CAPTURE))
+			continue;
+		if (idx == active_index)
+			break;
+		slot = NULL;
+	}
+	snd_runtime_check(slot != NULL, goto __unlock);
+	for (idx = 0; idx < uinfo->count; idx++)
+		uctl->value.enumerated.item[idx] = slot->capture_item;
+	snd_runtime_check((err = kctl->put(kctl, uctl)) >= 0, );
+	if (err > 0)
+		snd_ctl_notify(fmixer->card, SNDRV_CTL_EVENT_MASK_VALUE, &kctl->id);
+	err = 0;
+      __unlock:
+	up_read(&card->controls_rwsem);
+	kfree(uctl);
+	kfree(uinfo);
+	return err;
+}
+
+struct snd_mixer_oss_assign_table {
+	int oss_id;
+	const char *name;
+	int index;
+};
+
+static int snd_mixer_oss_build_test(snd_mixer_oss_t *mixer, struct slot *slot, const char *name, int index, int item)
+{
+	snd_ctl_elem_info_t *info;
+	snd_kcontrol_t *kcontrol;
+	snd_card_t *card = mixer->card;
+	int err;
+
+	down_read(&card->controls_rwsem);
+	kcontrol = snd_mixer_oss_test_id(mixer, name, index);
+	if (kcontrol == NULL) {
+		up_read(&card->controls_rwsem);
+		return 0;
+	}
+	info = kmalloc(sizeof(*info), GFP_KERNEL);
+	if (! info) {
+		up_read(&card->controls_rwsem);
+		return -ENOMEM;
+	}
+	if ((err = kcontrol->info(kcontrol, info)) < 0) {
+		up_read(&card->controls_rwsem);
+		kfree(info);
+		return err;
+	}
+	slot->numid[item] = kcontrol->id.numid;
+	up_read(&card->controls_rwsem);
+	if (info->count > slot->channels)
+		slot->channels = info->count;
+	slot->present |= 1 << item;
+	kfree(info);
+	return 0;
+}
+
+static void snd_mixer_oss_slot_free(snd_mixer_oss_slot_t *chn)
+{
+	struct slot *p = (struct slot *)chn->private_data;
+	if (p) {
+		if (p->allocated && p->assigned) {
+			kfree(p->assigned->name);
+			kfree(p->assigned);
+		}
+		kfree(p);
+	}
+}
+
+static void mixer_slot_clear(snd_mixer_oss_slot_t *rslot)
+{
+	int idx = rslot->number; /* remember this */
+	if (rslot->private_free)
+		rslot->private_free(rslot);
+	memset(rslot, 0, sizeof(*rslot));
+	rslot->number = idx;
+}
+
+/*
+ * build an OSS mixer element.
+ * ptr_allocated means the entry is dynamically allocated (change via proc file).
+ * when replace_old = 1, the old entry is replaced with the new one.
+ */
+static int snd_mixer_oss_build_input(snd_mixer_oss_t *mixer, struct snd_mixer_oss_assign_table *ptr, int ptr_allocated, int replace_old)
+{
+	struct slot slot;
+	struct slot *pslot;
+	snd_kcontrol_t *kctl;
+	snd_mixer_oss_slot_t *rslot;
+	char str[64];	
+	
+	/* check if already assigned */
+	if (mixer->slots[ptr->oss_id].get_volume && ! replace_old)
+		return 0;
+
+	memset(&slot, 0, sizeof(slot));
+	memset(slot.numid, 0xff, sizeof(slot.numid)); /* ID_UNKNOWN */
+	if (snd_mixer_oss_build_test(mixer, &slot, ptr->name, ptr->index,
+				     SNDRV_MIXER_OSS_ITEM_GLOBAL))
+		return 0;
+	sprintf(str, "%s Switch", ptr->name);
+	if (snd_mixer_oss_build_test(mixer, &slot, str, ptr->index,
+				     SNDRV_MIXER_OSS_ITEM_GSWITCH))
+		return 0;
+	sprintf(str, "%s Route", ptr->name);
+	if (snd_mixer_oss_build_test(mixer, &slot, str, ptr->index,
+				     SNDRV_MIXER_OSS_ITEM_GROUTE))
+		return 0;
+	sprintf(str, "%s Volume", ptr->name);
+	if (snd_mixer_oss_build_test(mixer, &slot, str, ptr->index,
+				     SNDRV_MIXER_OSS_ITEM_GVOLUME))
+		return 0;
+	sprintf(str, "%s Playback Switch", ptr->name);
+	if (snd_mixer_oss_build_test(mixer, &slot, str, ptr->index,
+				     SNDRV_MIXER_OSS_ITEM_PSWITCH))
+		return 0;
+	sprintf(str, "%s Playback Route", ptr->name);
+	if (snd_mixer_oss_build_test(mixer, &slot, str, ptr->index,
+				     SNDRV_MIXER_OSS_ITEM_PROUTE))
+		return 0;
+	sprintf(str, "%s Playback Volume", ptr->name);
+	if (snd_mixer_oss_build_test(mixer, &slot, str, ptr->index,
+				     SNDRV_MIXER_OSS_ITEM_PVOLUME))
+		return 0;
+	sprintf(str, "%s Capture Switch", ptr->name);
+	if (snd_mixer_oss_build_test(mixer, &slot, str, ptr->index,
+				     SNDRV_MIXER_OSS_ITEM_CSWITCH))
+		return 0;
+	sprintf(str, "%s Capture Route", ptr->name);
+	if (snd_mixer_oss_build_test(mixer, &slot, str, ptr->index,
+				     SNDRV_MIXER_OSS_ITEM_CROUTE))
+		return 0;
+	sprintf(str, "%s Capture Volume", ptr->name);
+	if (snd_mixer_oss_build_test(mixer, &slot, str, ptr->index,
+				     SNDRV_MIXER_OSS_ITEM_CVOLUME))
+		return 0;
+	down_read(&mixer->card->controls_rwsem);
+	if (ptr->index == 0 && (kctl = snd_mixer_oss_test_id(mixer, "Capture Source", 0)) != NULL) {
+		snd_ctl_elem_info_t *uinfo;
+
+		uinfo = kmalloc(sizeof(*uinfo), GFP_KERNEL);
+		if (! uinfo) {
+			up_read(&mixer->card->controls_rwsem);
+			return -ENOMEM;
+		}
+			
+		memset(uinfo, 0, sizeof(*uinfo));
+		if (kctl->info(kctl, uinfo)) {
+			up_read(&mixer->card->controls_rwsem);
+			return 0;
+		}
+		strcpy(str, ptr->name);
+		if (!strcmp(str, "Master"))
+			strcpy(str, "Mix");
+		if (!strcmp(str, "Master Mono"))
+			strcpy(str, "Mix Mono");
+		slot.capture_item = 0;
+		if (!strcmp(uinfo->value.enumerated.name, str)) {
+			slot.present |= SNDRV_MIXER_OSS_PRESENT_CAPTURE;
+		} else {
+			for (slot.capture_item = 1; slot.capture_item < uinfo->value.enumerated.items; slot.capture_item++) {
+				uinfo->value.enumerated.item = slot.capture_item;
+				if (kctl->info(kctl, uinfo)) {
+					up_read(&mixer->card->controls_rwsem);
+					return 0;
+				}
+				if (!strcmp(uinfo->value.enumerated.name, str)) {
+					slot.present |= SNDRV_MIXER_OSS_PRESENT_CAPTURE;
+					break;
+				}
+			}
+		}
+		kfree(uinfo);
+	}
+	up_read(&mixer->card->controls_rwsem);
+	if (slot.present != 0) {
+		pslot = (struct slot *)kmalloc(sizeof(slot), GFP_KERNEL);
+		snd_runtime_check(pslot != NULL, return -ENOMEM);
+		*pslot = slot;
+		pslot->signature = SNDRV_MIXER_OSS_SIGNATURE;
+		pslot->assigned = ptr;
+		pslot->allocated = ptr_allocated;
+		rslot = &mixer->slots[ptr->oss_id];
+		mixer_slot_clear(rslot);
+		rslot->stereo = slot.channels > 1 ? 1 : 0;
+		rslot->get_volume = snd_mixer_oss_get_volume1;
+		rslot->put_volume = snd_mixer_oss_put_volume1;
+		/* note: ES18xx have both Capture Source and XX Capture Volume !!! */
+		if (slot.present & SNDRV_MIXER_OSS_PRESENT_CSWITCH) {
+			rslot->get_recsrc = snd_mixer_oss_get_recsrc1_sw;
+			rslot->put_recsrc = snd_mixer_oss_put_recsrc1_sw;
+		} else if (slot.present & SNDRV_MIXER_OSS_PRESENT_CROUTE) {
+			rslot->get_recsrc = snd_mixer_oss_get_recsrc1_route;
+			rslot->put_recsrc = snd_mixer_oss_put_recsrc1_route;
+		} else if (slot.present & SNDRV_MIXER_OSS_PRESENT_CAPTURE) {
+			mixer->mask_recsrc |= 1 << ptr->oss_id;
+		}
+		rslot->private_data = pslot;
+		rslot->private_free = snd_mixer_oss_slot_free;
+		return 1;
+	}
+	return 0;
+}
+
+/*
+ */
+#define MIXER_VOL(name) [SOUND_MIXER_##name] = #name
+static char *oss_mixer_names[SNDRV_OSS_MAX_MIXERS] = {
+	MIXER_VOL(VOLUME),
+	MIXER_VOL(BASS),
+	MIXER_VOL(TREBLE),
+	MIXER_VOL(SYNTH),
+	MIXER_VOL(PCM),
+	MIXER_VOL(SPEAKER),
+	MIXER_VOL(LINE),
+	MIXER_VOL(MIC),
+	MIXER_VOL(CD),
+	MIXER_VOL(IMIX),
+	MIXER_VOL(ALTPCM),
+	MIXER_VOL(RECLEV),
+	MIXER_VOL(IGAIN),
+	MIXER_VOL(OGAIN),
+	MIXER_VOL(LINE1),
+	MIXER_VOL(LINE2),
+	MIXER_VOL(LINE3),
+	MIXER_VOL(DIGITAL1),
+	MIXER_VOL(DIGITAL2),
+	MIXER_VOL(DIGITAL3),
+	MIXER_VOL(PHONEIN),
+	MIXER_VOL(PHONEOUT),
+	MIXER_VOL(VIDEO),
+	MIXER_VOL(RADIO),
+	MIXER_VOL(MONITOR),
+};
+	
+/*
+ *  /proc interface
+ */
+
+static void snd_mixer_oss_proc_read(snd_info_entry_t *entry,
+				    snd_info_buffer_t * buffer)
+{
+	snd_mixer_oss_t *mixer = entry->private_data;
+	int i;
+
+	down(&mixer->reg_mutex);
+	for (i = 0; i < SNDRV_OSS_MAX_MIXERS; i++) {
+		struct slot *p;
+
+		if (! oss_mixer_names[i])
+			continue;
+		p = (struct slot *)mixer->slots[i].private_data;
+		snd_iprintf(buffer, "%s ", oss_mixer_names[i]);
+		if (p && p->assigned)
+			snd_iprintf(buffer, "\"%s\" %d\n",
+				    p->assigned->name,
+				    p->assigned->index);
+		else
+			snd_iprintf(buffer, "\"\" 0\n");
+	}
+	up(&mixer->reg_mutex);
+}
+
+static void snd_mixer_oss_proc_write(snd_info_entry_t *entry,
+				     snd_info_buffer_t * buffer)
+{
+	snd_mixer_oss_t *mixer = entry->private_data;
+	char line[128], str[32], idxstr[16], *cptr;
+	int ch, idx;
+	struct snd_mixer_oss_assign_table *tbl;
+	struct slot *slot;
+
+	while (!snd_info_get_line(buffer, line, sizeof(line))) {
+		cptr = snd_info_get_str(str, line, sizeof(str));
+		for (ch = 0; ch < SNDRV_OSS_MAX_MIXERS; ch++)
+			if (oss_mixer_names[ch] && strcmp(oss_mixer_names[ch], str) == 0)
+				break;
+		if (ch >= SNDRV_OSS_MAX_MIXERS) {
+			snd_printk(KERN_ERR "mixer_oss: invalid OSS volume '%s'\n", str);
+			continue;
+		}
+		cptr = snd_info_get_str(str, cptr, sizeof(str));
+		if (! *str) {
+			/* remove the entry */
+			down(&mixer->reg_mutex);
+			mixer_slot_clear(&mixer->slots[ch]);
+			up(&mixer->reg_mutex);
+			continue;
+		}
+		snd_info_get_str(idxstr, cptr, sizeof(idxstr));
+		idx = simple_strtoul(idxstr, NULL, 10);
+		if (idx >= 0x4000) { /* too big */
+			snd_printk(KERN_ERR "mixer_oss: invalid index %d\n", idx);
+			continue;
+		}
+		down(&mixer->reg_mutex);
+		slot = (struct slot *)mixer->slots[ch].private_data;
+		if (slot && slot->assigned &&
+		    slot->assigned->index == idx && ! strcmp(slot->assigned->name, str))
+			/* not changed */
+			goto __unlock;
+		tbl = kmalloc(sizeof(*tbl), GFP_KERNEL);
+		if (! tbl) {
+			snd_printk(KERN_ERR "mixer_oss: no memory\n");
+			goto __unlock;
+		}
+		tbl->oss_id = ch;
+		tbl->name = snd_kmalloc_strdup(str, GFP_KERNEL);
+		if (! tbl->name) {
+			kfree(tbl);
+			goto __unlock;
+		}
+		tbl->index = idx;
+		if (snd_mixer_oss_build_input(mixer, tbl, 1, 1) <= 0) {
+			kfree(tbl->name);
+			kfree(tbl);
+		}
+	__unlock:
+		up(&mixer->reg_mutex);
+	}
+}
+
+static void snd_mixer_oss_proc_init(snd_mixer_oss_t *mixer)
+{
+	snd_info_entry_t *entry;
+
+	entry = snd_info_create_card_entry(mixer->card, "oss_mixer",
+					   mixer->card->proc_root);
+	if (! entry)
+		return;
+	entry->content = SNDRV_INFO_CONTENT_TEXT;
+	entry->mode = S_IFREG | S_IRUGO | S_IWUSR;
+	entry->c.text.read_size = 8192;
+	entry->c.text.read = snd_mixer_oss_proc_read;
+	entry->c.text.write_size = 8192;
+	entry->c.text.write = snd_mixer_oss_proc_write;
+	entry->private_data = mixer;
+	if (snd_info_register(entry) < 0) {
+		snd_info_free_entry(entry);
+		entry = NULL;
+	}
+	mixer->proc_entry = entry;
+}
+
+static void snd_mixer_oss_proc_done(snd_mixer_oss_t *mixer)
+{
+	if (mixer->proc_entry) {
+		snd_info_unregister(mixer->proc_entry);
+		mixer->proc_entry = NULL;
+	}
+}
+
+static void snd_mixer_oss_build(snd_mixer_oss_t *mixer)
+{
+	static struct snd_mixer_oss_assign_table table[] = {
+		{ SOUND_MIXER_VOLUME, 	"Master",		0 },
+		{ SOUND_MIXER_VOLUME, 	"Front",		0 }, /* fallback */
+		{ SOUND_MIXER_BASS,	"Tone Control - Bass",	0 },
+		{ SOUND_MIXER_TREBLE,	"Tone Control - Treble", 0 },
+		{ SOUND_MIXER_SYNTH,	"Synth",		0 },
+		{ SOUND_MIXER_SYNTH,	"FM",			0 }, /* fallback */
+		{ SOUND_MIXER_SYNTH,	"Music",		0 }, /* fallback */
+		{ SOUND_MIXER_PCM,	"PCM",			0 },
+		{ SOUND_MIXER_SPEAKER,	"PC Speaker", 		0 },
+		{ SOUND_MIXER_LINE,	"Line", 		0 },
+		{ SOUND_MIXER_MIC,	"Mic", 			0 },
+		{ SOUND_MIXER_CD,	"CD", 			0 },
+		{ SOUND_MIXER_IMIX,	"Monitor Mix", 		0 },
+		{ SOUND_MIXER_ALTPCM,	"PCM",			1 },
+		{ SOUND_MIXER_ALTPCM,	"Headphone",		0 }, /* fallback */
+		{ SOUND_MIXER_ALTPCM,	"Wave",			0 }, /* fallback */
+		{ SOUND_MIXER_RECLEV,	"-- nothing --",	0 },
+		{ SOUND_MIXER_IGAIN,	"Capture",		0 },
+		{ SOUND_MIXER_OGAIN,	"Playback",		0 },
+		{ SOUND_MIXER_LINE1,	"Aux",			0 },
+		{ SOUND_MIXER_LINE2,	"Aux",			1 },
+		{ SOUND_MIXER_LINE3,	"Aux",			2 },
+		{ SOUND_MIXER_DIGITAL1,	"Digital",		0 },
+		{ SOUND_MIXER_DIGITAL1,	"IEC958",		0 }, /* fallback */
+		{ SOUND_MIXER_DIGITAL1,	"IEC958 Optical",	0 }, /* fallback */
+		{ SOUND_MIXER_DIGITAL1,	"IEC958 Coaxial",	0 }, /* fallback */
+		{ SOUND_MIXER_DIGITAL2,	"Digital",		1 },
+		{ SOUND_MIXER_DIGITAL3,	"Digital",		2 },
+		{ SOUND_MIXER_PHONEIN,	"Phone",		0 },
+		{ SOUND_MIXER_PHONEOUT,	"Master Mono",		0 },
+		{ SOUND_MIXER_PHONEOUT,	"Phone",		0 }, /* fallback */
+		{ SOUND_MIXER_VIDEO,	"Video",		0 },
+		{ SOUND_MIXER_RADIO,	"Radio",		0 },
+		{ SOUND_MIXER_MONITOR,	"Monitor",		0 }
+	};
+	unsigned int idx;
+	
+	for (idx = 0; idx < ARRAY_SIZE(table); idx++)
+		snd_mixer_oss_build_input(mixer, &table[idx], 0, 0);
+	if (mixer->mask_recsrc) {
+		mixer->get_recsrc = snd_mixer_oss_get_recsrc2;
+		mixer->put_recsrc = snd_mixer_oss_put_recsrc2;
+	}
+}
+
+/*
+ *
+ */
+
+static int snd_mixer_oss_free1(void *private)
+{
+	snd_mixer_oss_t *mixer = private;
+	snd_card_t * card;
+	int idx;
+ 
+	snd_assert(mixer != NULL, return -ENXIO);
+	card = mixer->card;
+	snd_assert(mixer == card->mixer_oss, return -ENXIO);
+	card->mixer_oss = NULL;
+	for (idx = 0; idx < SNDRV_OSS_MAX_MIXERS; idx++) {
+		snd_mixer_oss_slot_t *chn = &mixer->slots[idx];
+		if (chn->private_free)
+			chn->private_free(chn);
+	}
+	kfree(mixer);
+	return 0;
+}
+
+static int snd_mixer_oss_notify_handler(snd_card_t * card, int cmd)
+{
+	snd_mixer_oss_t *mixer;
+
+	if (cmd == SND_MIXER_OSS_NOTIFY_REGISTER) {
+		char name[128];
+		int idx, err;
+
+		mixer = kcalloc(2, sizeof(*mixer), GFP_KERNEL);
+		if (mixer == NULL)
+			return -ENOMEM;
+		init_MUTEX(&mixer->reg_mutex);
+		sprintf(name, "mixer%i%i", card->number, 0);
+		if ((err = snd_register_oss_device(SNDRV_OSS_DEVICE_TYPE_MIXER,
+						   card, 0,
+						   &snd_mixer_oss_reg,
+						   name)) < 0) {
+			snd_printk("unable to register OSS mixer device %i:%i\n", card->number, 0);
+			kfree(mixer);
+			return err;
+		}
+		mixer->oss_dev_alloc = 1;
+		mixer->card = card;
+		if (*card->mixername)
+			strlcpy(mixer->name, card->mixername, sizeof(mixer->name));
+		else
+			strlcpy(mixer->name, name, sizeof(mixer->name));
+#ifdef SNDRV_OSS_INFO_DEV_MIXERS
+		snd_oss_info_register(SNDRV_OSS_INFO_DEV_MIXERS,
+				      card->number,
+				      mixer->name);
+#endif
+		for (idx = 0; idx < SNDRV_OSS_MAX_MIXERS; idx++)
+			mixer->slots[idx].number = idx;
+		card->mixer_oss = mixer;
+		snd_mixer_oss_build(mixer);
+		snd_mixer_oss_proc_init(mixer);
+	} else if (cmd == SND_MIXER_OSS_NOTIFY_DISCONNECT) {
+		mixer = card->mixer_oss;
+		if (mixer == NULL || !mixer->oss_dev_alloc)
+			return 0;
+		snd_unregister_oss_device(SNDRV_OSS_DEVICE_TYPE_MIXER, mixer->card, 0);
+		mixer->oss_dev_alloc = 0;
+	} else {		/* free */
+		mixer = card->mixer_oss;
+		if (mixer == NULL)
+			return 0;
+#ifdef SNDRV_OSS_INFO_DEV_MIXERS
+		snd_oss_info_unregister(SNDRV_OSS_INFO_DEV_MIXERS, mixer->card->number);
+#endif
+		if (mixer->oss_dev_alloc)
+			snd_unregister_oss_device(SNDRV_OSS_DEVICE_TYPE_MIXER, mixer->card, 0);
+		snd_mixer_oss_proc_done(mixer);
+		return snd_mixer_oss_free1(mixer);
+	}
+	return 0;
+}
+
+static int __init alsa_mixer_oss_init(void)
+{
+	int idx;
+	
+	snd_mixer_oss_notify_callback = snd_mixer_oss_notify_handler;
+	for (idx = 0; idx < SNDRV_CARDS; idx++) {
+		if (snd_cards[idx])
+			snd_mixer_oss_notify_handler(snd_cards[idx], SND_MIXER_OSS_NOTIFY_REGISTER);
+	}
+	return 0;
+}
+
+static void __exit alsa_mixer_oss_exit(void)
+{
+	int idx;
+
+	snd_mixer_oss_notify_callback = NULL;
+	for (idx = 0; idx < SNDRV_CARDS; idx++) {
+		if (snd_cards[idx])
+			snd_mixer_oss_notify_handler(snd_cards[idx], SND_MIXER_OSS_NOTIFY_FREE);
+	}
+}
+
+module_init(alsa_mixer_oss_init)
+module_exit(alsa_mixer_oss_exit)
+
+EXPORT_SYMBOL(snd_mixer_oss_ioctl_card);