8 files changed, 98 insertions, 283 deletions

diff --git a/include/sound/ad1848.h b/include/sound/ad1848.h
index 29f63b786351..03e2abf64a7c 100644
--- a/include/sound/ad1848.h
+++ b/include/sound/ad1848.h
@@ -115,6 +115,5 @@ int snd_ad1848_create(struct snd_card *card,
 
 int snd_ad1848_pcm(struct snd_wss *chip, int device, struct snd_pcm **rpcm);
 const struct snd_pcm_ops *snd_ad1848_get_pcm_ops(int direction);
-int snd_ad1848_mixer(struct snd_wss *chip);
 
 #endif /* __SOUND_AD1848_H */
diff --git a/include/sound/wss.h b/include/sound/wss.h
index 2cc1f1462d8e..c896f6e1f937 100644
--- a/include/sound/wss.h
+++ b/include/sound/wss.h
@@ -193,6 +193,31 @@ int snd_wss_put_single(struct snd_kcontrol *kcontrol,
   .private_value = left_reg | (right_reg << 8) | (shift_left << 16) | \
                    (shift_right << 19) | (mask << 24) | (invert << 22) }
 
+#define WSS_SINGLE_TLV(xname, xindex, reg, shift, mask, invert, xtlv) \
+{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
+  .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ, \
+  .name = xname, \
+  .index = xindex, \
+  .info = snd_wss_info_single, \
+  .get = snd_wss_get_single, \
+  .put = snd_wss_put_single, \
+  .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24), \
+  .tlv = { .p = (xtlv) } }
+
+#define WSS_DOUBLE_TLV(xname, xindex, left_reg, right_reg, \
+                        shift_left, shift_right, mask, invert, xtlv) \
+{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
+  .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ, \
+  .name = xname, \
+  .index = xindex, \
+  .info = snd_wss_info_double, \
+  .get = snd_wss_get_double, \
+  .put = snd_wss_put_double, \
+  .private_value = left_reg | (right_reg << 8) | (shift_left << 16) | \
+                   (shift_right << 19) | (mask << 24) | (invert << 22), \
+  .tlv = { .p = (xtlv) } }
+
+
 int snd_wss_info_double(struct snd_kcontrol *kcontrol,
                         struct snd_ctl_elem_info *uinfo);
 int snd_wss_get_double(struct snd_kcontrol *kcontrol,
diff --git a/sound/isa/ad1848/ad1848.c b/sound/isa/ad1848/ad1848.c
index 40de24b280d3..d5a96631587c 100644
--- a/sound/isa/ad1848/ad1848.c
+++ b/sound/isa/ad1848/ad1848.c
@@ -106,7 +106,7 @@ static int __devinit snd_ad1848_probe(struct device *dev, unsigned int n)
         if (error < 0)
                 goto out;
 
-        error = snd_ad1848_mixer(chip);
+        error = snd_wss_mixer(chip);
         if (error < 0)
                 goto out;
 
diff --git a/sound/isa/ad1848/ad1848_lib.c b/sound/isa/ad1848/ad1848_lib.c
index 07756fa36947..5de046014337 100644
--- a/sound/isa/ad1848/ad1848_lib.c
+++ b/sound/isa/ad1848/ad1848_lib.c
@@ -995,267 +995,6 @@ const struct snd_pcm_ops *snd_ad1848_get_pcm_ops(int direction)
 EXPORT_SYMBOL(snd_ad1848_get_pcm_ops);
 
 /*
- *  MIXER part
- */
-
-static int snd_ad1848_info_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
-{
-        static char *texts[4] = {
-                "Line", "Aux", "Mic", "Mix"
-        };
-
-        uinfo->type = SNDRV_CTL_ELEM_TYPE_ENUMERATED;
-        uinfo->count = 2;
-        uinfo->value.enumerated.items = 4;
-        if (uinfo->value.enumerated.item > 3)
-                uinfo->value.enumerated.item = 3;
-        strcpy(uinfo->value.enumerated.name, texts[uinfo->value.enumerated.item]);
-        return 0;
-}
-
-static int snd_ad1848_get_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
-{
-        struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
-        unsigned long flags;
-        
-        spin_lock_irqsave(&chip->reg_lock, flags);
-        ucontrol->value.enumerated.item[0] = (chip->image[AD1848_LEFT_INPUT] & AD1848_MIXS_ALL) >> 6;
-        ucontrol->value.enumerated.item[1] = (chip->image[AD1848_RIGHT_INPUT] & AD1848_MIXS_ALL) >> 6;
-        spin_unlock_irqrestore(&chip->reg_lock, flags);
-        return 0;
-}
-
-static int snd_ad1848_put_mux(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
-{
-        struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
-        unsigned long flags;
-        unsigned short left, right;
-        int change;
-        
-        if (ucontrol->value.enumerated.item[0] > 3 ||
-            ucontrol->value.enumerated.item[1] > 3)
-                return -EINVAL;
-        left = ucontrol->value.enumerated.item[0] << 6;
-        right = ucontrol->value.enumerated.item[1] << 6;
-        spin_lock_irqsave(&chip->reg_lock, flags);
-        left = (chip->image[AD1848_LEFT_INPUT] & ~AD1848_MIXS_ALL) | left;
-        right = (chip->image[AD1848_RIGHT_INPUT] & ~AD1848_MIXS_ALL) | right;
-        change = left != chip->image[AD1848_LEFT_INPUT] ||
-                 right != chip->image[AD1848_RIGHT_INPUT];
-        snd_ad1848_out(chip, AD1848_LEFT_INPUT, left);
-        snd_ad1848_out(chip, AD1848_RIGHT_INPUT, right);
-        spin_unlock_irqrestore(&chip->reg_lock, flags);
-        return change;
-}
-
-static int snd_ad1848_info_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
-{
-        int mask = (kcontrol->private_value >> 16) & 0xff;
-
-        uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
-        uinfo->count = 1;
-        uinfo->value.integer.min = 0;
-        uinfo->value.integer.max = mask;
-        return 0;
-}
-
-static int snd_ad1848_get_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
-{
-        struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
-        unsigned long flags;
-        int reg = kcontrol->private_value & 0xff;
-        int shift = (kcontrol->private_value >> 8) & 0xff;
-        int mask = (kcontrol->private_value >> 16) & 0xff;
-        int invert = (kcontrol->private_value >> 24) & 0xff;
-        
-        spin_lock_irqsave(&chip->reg_lock, flags);
-        ucontrol->value.integer.value[0] = (chip->image[reg] >> shift) & mask;
-        spin_unlock_irqrestore(&chip->reg_lock, flags);
-        if (invert)
-                ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
-        return 0;
-}
-
-static int snd_ad1848_put_single(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
-{
-        struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
-        unsigned long flags;
-        int reg = kcontrol->private_value & 0xff;
-        int shift = (kcontrol->private_value >> 8) & 0xff;
-        int mask = (kcontrol->private_value >> 16) & 0xff;
-        int invert = (kcontrol->private_value >> 24) & 0xff;
-        int change;
-        unsigned short val;
-        
-        val = (ucontrol->value.integer.value[0] & mask);
-        if (invert)
-                val = mask - val;
-        val <<= shift;
-        spin_lock_irqsave(&chip->reg_lock, flags);
-        val = (chip->image[reg] & ~(mask << shift)) | val;
-        change = val != chip->image[reg];
-        snd_ad1848_out(chip, reg, val);
-        spin_unlock_irqrestore(&chip->reg_lock, flags);
-        return change;
-}
-
-static int snd_ad1848_info_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_info *uinfo)
-{
-        int mask = (kcontrol->private_value >> 24) & 0xff;
-
-        uinfo->type = mask == 1 ? SNDRV_CTL_ELEM_TYPE_BOOLEAN : SNDRV_CTL_ELEM_TYPE_INTEGER;
-        uinfo->count = 2;
-        uinfo->value.integer.min = 0;
-        uinfo->value.integer.max = mask;
-        return 0;
-}
-
-static int snd_ad1848_get_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
-{
-        struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
-        unsigned long flags;
-        int left_reg = kcontrol->private_value & 0xff;
-        int right_reg = (kcontrol->private_value >> 8) & 0xff;
-        int shift_left = (kcontrol->private_value >> 16) & 0x07;
-        int shift_right = (kcontrol->private_value >> 19) & 0x07;
-        int mask = (kcontrol->private_value >> 24) & 0xff;
-        int invert = (kcontrol->private_value >> 22) & 1;
-        
-        spin_lock_irqsave(&chip->reg_lock, flags);
-        ucontrol->value.integer.value[0] = (chip->image[left_reg] >> shift_left) & mask;
-        ucontrol->value.integer.value[1] = (chip->image[right_reg] >> shift_right) & mask;
-        spin_unlock_irqrestore(&chip->reg_lock, flags);
-        if (invert) {
-                ucontrol->value.integer.value[0] = mask - ucontrol->value.integer.value[0];
-                ucontrol->value.integer.value[1] = mask - ucontrol->value.integer.value[1];
-        }
-        return 0;
-}
-
-static int snd_ad1848_put_double(struct snd_kcontrol *kcontrol, struct snd_ctl_elem_value *ucontrol)
-{
-        struct snd_wss *chip = snd_kcontrol_chip(kcontrol);
-        unsigned long flags;
-        int left_reg = kcontrol->private_value & 0xff;
-        int right_reg = (kcontrol->private_value >> 8) & 0xff;
-        int shift_left = (kcontrol->private_value >> 16) & 0x07;
-        int shift_right = (kcontrol->private_value >> 19) & 0x07;
-        int mask = (kcontrol->private_value >> 24) & 0xff;
-        int invert = (kcontrol->private_value >> 22) & 1;
-        int change;
-        unsigned short val1, val2;
-        
-        val1 = ucontrol->value.integer.value[0] & mask;
-        val2 = ucontrol->value.integer.value[1] & mask;
-        if (invert) {
-                val1 = mask - val1;
-                val2 = mask - val2;
-        }
-        val1 <<= shift_left;
-        val2 <<= shift_right;
-        spin_lock_irqsave(&chip->reg_lock, flags);
-        if (left_reg != right_reg) {
-                val1 = (chip->image[left_reg] & ~(mask << shift_left)) | val1;
-                val2 = (chip->image[right_reg] & ~(mask << shift_right)) | val2;
-                change = val1 != chip->image[left_reg] || val2 != chip->image[right_reg];
-                snd_ad1848_out(chip, left_reg, val1);
-                snd_ad1848_out(chip, right_reg, val2);
-        } else {
-                val1 = (chip->image[left_reg] & ~((mask << shift_left) | (mask << shift_right))) | val1 | val2;
-                change = val1 != chip->image[left_reg];
-                snd_ad1848_out(chip, left_reg, val1);           
-        }
-        spin_unlock_irqrestore(&chip->reg_lock, flags);
-        return change;
-}
-
-static const DECLARE_TLV_DB_SCALE(db_scale_6bit, -9450, 150, 0);
-static const DECLARE_TLV_DB_SCALE(db_scale_5bit_12db_max, -3450, 150, 0);
-static const DECLARE_TLV_DB_SCALE(db_scale_rec_gain, 0, 150, 0);
-
-#define AD1848_SINGLE_TLV(xname, xindex, reg, shift, mask, invert, xtlv) \
-{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
-  .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ, \
-  .name = xname, \
-  .index = xindex, \
-  .info = snd_ad1848_info_single, \
-  .get = snd_ad1848_get_single, \
-  .put = snd_ad1848_put_single, \
-  .private_value = reg | (shift << 8) | (mask << 16) | (invert << 24), \
-  .tlv = { .p = (xtlv) } }
-
-#define AD1848_DOUBLE_TLV(xname, xindex, left_reg, right_reg, shift_left, shift_right, mask, invert, xtlv) \
-{ .iface = SNDRV_CTL_ELEM_IFACE_MIXER, \
-  .access = SNDRV_CTL_ELEM_ACCESS_READWRITE | SNDRV_CTL_ELEM_ACCESS_TLV_READ, \
-  .name = xname, \
-  .index = xindex, \
-  .info = snd_ad1848_info_double, \
-  .get = snd_ad1848_get_double, \
-  .put = snd_ad1848_put_double, \
-  .private_value = left_reg | (right_reg << 8) | (shift_left << 16) | \
-                   (shift_right << 19) | (mask << 24) | (invert << 22), \
-  .tlv = { .p = (xtlv) } }
-
-static struct snd_kcontrol_new snd_ad1848_controls[] = {
-WSS_DOUBLE("PCM Playback Switch", 0,
-                AD1848_LEFT_OUTPUT, AD1848_RIGHT_OUTPUT, 7, 7, 1, 1),
-AD1848_DOUBLE_TLV("PCM Playback Volume", 0,
-                AD1848_LEFT_OUTPUT, AD1848_RIGHT_OUTPUT, 0, 0, 63, 1,
-                db_scale_6bit),
-WSS_DOUBLE("Aux Playback Switch", 0,
-                AD1848_AUX1_LEFT_INPUT, AD1848_AUX1_RIGHT_INPUT, 7, 7, 1, 1),
-AD1848_DOUBLE_TLV("Aux Playback Volume", 0,
-                AD1848_AUX1_LEFT_INPUT, AD1848_AUX1_RIGHT_INPUT, 0, 0, 31, 1,
-                db_scale_5bit_12db_max),
-WSS_DOUBLE("Aux Playback Switch", 1,
-                AD1848_AUX2_LEFT_INPUT, AD1848_AUX2_RIGHT_INPUT, 7, 7, 1, 1),
-AD1848_DOUBLE_TLV("Aux Playback Volume", 1,
-                AD1848_AUX2_LEFT_INPUT, AD1848_AUX2_RIGHT_INPUT, 0, 0, 31, 1,
-                db_scale_5bit_12db_max),
-AD1848_DOUBLE_TLV("Capture Volume", 0,
-                AD1848_LEFT_INPUT, AD1848_RIGHT_INPUT, 0, 0, 15, 0,
-                db_scale_rec_gain),
-{
-        .name = "Capture Source",
-        .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
-        .info = snd_ad1848_info_mux,
-        .get = snd_ad1848_get_mux,
-        .put = snd_ad1848_put_mux,
-},
-WSS_SINGLE("Loopback Capture Switch", 0,
-                AD1848_LOOPBACK, 0, 1, 0),
-AD1848_SINGLE_TLV("Loopback Capture Volume", 0,
-                AD1848_LOOPBACK, 1, 63, 0,
-                db_scale_6bit),
-};
-                                        
-int snd_ad1848_mixer(struct snd_wss *chip)
-{
-        struct snd_card *card;
-        struct snd_pcm *pcm;
-        unsigned int idx;
-        int err;
-
-        snd_assert(chip != NULL && chip->pcm != NULL, return -EINVAL);
-
-        pcm = chip->pcm;
-        card = chip->card;
-
-        strcpy(card->mixername, pcm->name);
-
-        for (idx = 0; idx < ARRAY_SIZE(snd_ad1848_controls); idx++) {
-                err = snd_ctl_add(card,
-                                snd_ctl_new1(&snd_ad1848_controls[idx], chip));
-                if (err < 0)
-                        return err;
-        }
-
-        return 0;
-}
-
-EXPORT_SYMBOL(snd_ad1848_mixer);
-
-/*
  *  INIT part
  */
 
diff --git a/sound/isa/opti9xx/opti92x-ad1848.c b/sound/isa/opti9xx/opti92x-ad1848.c
index 1f6d6fcd6e57..4f172a219244 100644
--- a/sound/isa/opti9xx/opti92x-ad1848.c
+++ b/sound/isa/opti9xx/opti92x-ad1848.c
@@ -757,6 +757,15 @@ static int __devinit snd_opti9xx_probe(struct snd_card *card)
         error = snd_wss_pcm(codec, 0, &pcm);
         if (error < 0)
                 return error;
+#else
+        error = snd_ad1848_create(card, chip->wss_base + 4, chip->irq,
+                                  chip->dma1, WSS_HW_DETECT, &codec);
+        if (error < 0)
+                return error;
+        error = snd_ad1848_pcm(codec, 0, &pcm);
+        if (error < 0)
+                return error;
+#endif
         error = snd_wss_mixer(codec);
         if (error < 0)
                 return error;
@@ -764,7 +773,8 @@ static int __devinit snd_opti9xx_probe(struct snd_card *card)
         error = snd_wss_timer(codec, 0, &timer);
         if (error < 0)
                 return error;
-#else /* OPTI93X */
+#endif
+#ifdef OPTi93X
         error = request_irq(chip->irq, snd_opti93x_interrupt,
                             IRQF_DISABLED, DEV_NAME" - WSS", codec);
         if (error < 0) {
@@ -772,16 +782,6 @@ static int __devinit snd_opti9xx_probe(struct snd_card *card)
                 return error;
         }
 #endif
-#else
-        if ((error = snd_ad1848_create(card, chip->wss_base + 4,
-                                       chip->irq, chip->dma1,
-                                       WSS_HW_DETECT, &codec)) < 0)
-                return error;
-        if ((error = snd_ad1848_pcm(codec, 0, &pcm)) < 0)
-                return error;
-        if ((error = snd_ad1848_mixer(codec)) < 0)
-                return error;
-#endif
         strcpy(card->driver, chip->name);
         sprintf(card->shortname, "OPTi %s", card->driver);
 #if defined(CS4231) || defined(OPTi93X)
diff --git a/sound/isa/sc6000.c b/sound/isa/sc6000.c
index 0b6cf472ddcb..ef98fe7dced8 100644
--- a/sound/isa/sc6000.c
+++ b/sound/isa/sc6000.c
@@ -560,9 +560,9 @@ static int __devinit snd_sc6000_probe(struct device *devptr, unsigned int dev)
                            "error creating new ad1848 PCM device\n");
                 goto err_unmap2;
         }
-        err = snd_ad1848_mixer(chip);
+        err = snd_wss_mixer(chip);
         if (err < 0) {
-                snd_printk(KERN_ERR PFX "error creating new ad1848 mixer\n");
+                snd_printk(KERN_ERR PFX "error creating new WSS mixer\n");
                 goto err_unmap2;
         }
         err = snd_sc6000_mixer(chip);
diff --git a/sound/isa/sgalaxy.c b/sound/isa/sgalaxy.c
index 5894b2d4db64..e4f06de3480c 100644
--- a/sound/isa/sgalaxy.c
+++ b/sound/isa/sgalaxy.c
@@ -277,8 +277,9 @@ static int __devinit snd_sgalaxy_probe(struct device *devptr, unsigned int dev)
                 snd_printdd(PFX "error creating new ad1848 PCM device\n");
                 goto _err;
         }
-        if ((err = snd_ad1848_mixer(chip)) < 0) {
-                snd_printdd(PFX "error creating new ad1848 mixer\n");
+        err = snd_wss_mixer(chip);
+        if (err < 0) {
+                snd_printdd(PFX "error creating new WSS mixer\n");
                 goto _err;
         }
         if ((err = snd_sgalaxy_mixer(chip)) < 0) {
diff --git a/sound/isa/wss/wss_lib.c b/sound/isa/wss/wss_lib.c
index a982997805c4..1688f07a14b0 100644
--- a/sound/isa/wss/wss_lib.c
+++ b/sound/isa/wss/wss_lib.c
@@ -33,6 +33,7 @@
 #include <sound/core.h>
 #include <sound/wss.h>
 #include <sound/pcm_params.h>
+#include <sound/tlv.h>
 
 #include <asm/io.h>
 #include <asm/dma.h>
@@ -1957,16 +1958,58 @@ int snd_wss_put_double(struct snd_kcontrol *kcontrol,
         val1 <<= shift_left;
         val2 <<= shift_right;
         spin_lock_irqsave(&chip->reg_lock, flags);
-        val1 = (chip->image[left_reg] & ~(mask << shift_left)) | val1;
-        val2 = (chip->image[right_reg] & ~(mask << shift_right)) | val2;
-        change = val1 != chip->image[left_reg] || val2 != chip->image[right_reg];
-        snd_wss_out(chip, left_reg, val1);
-        snd_wss_out(chip, right_reg, val2);
+        if (left_reg != right_reg) {
+                val1 = (chip->image[left_reg] & ~(mask << shift_left)) | val1;
+                val2 = (chip->image[right_reg] & ~(mask << shift_right)) | val2;
+                change = val1 != chip->image[left_reg] ||
+                         val2 != chip->image[right_reg];
+                snd_wss_out(chip, left_reg, val1);
+                snd_wss_out(chip, right_reg, val2);
+        } else {
+                mask = (mask << shift_left) | (mask << shift_right);
+                val1 = (chip->image[left_reg] & ~mask) | val1 | val2;
+                change = val1 != chip->image[left_reg];
+                snd_wss_out(chip, left_reg, val1);
+        }
         spin_unlock_irqrestore(&chip->reg_lock, flags);
         return change;
 }
 EXPORT_SYMBOL(snd_wss_put_double);
 
+static const DECLARE_TLV_DB_SCALE(db_scale_6bit, -9450, 150, 0);
+static const DECLARE_TLV_DB_SCALE(db_scale_5bit_12db_max, -3450, 150, 0);
+static const DECLARE_TLV_DB_SCALE(db_scale_rec_gain, 0, 150, 0);
+
+static struct snd_kcontrol_new snd_ad1848_controls[] = {
+WSS_DOUBLE("PCM Playback Switch", 0, CS4231_LEFT_OUTPUT, CS4231_RIGHT_OUTPUT,
+           7, 7, 1, 1),
+WSS_DOUBLE_TLV("PCM Playback Volume", 0,
+               CS4231_LEFT_OUTPUT, CS4231_RIGHT_OUTPUT, 0, 0, 63, 1,
+               db_scale_6bit),
+WSS_DOUBLE("Aux Playback Switch", 0,
+           CS4231_AUX1_LEFT_INPUT, CS4231_AUX1_RIGHT_INPUT, 7, 7, 1, 1),
+WSS_DOUBLE_TLV("Aux Playback Volume", 0,
+               CS4231_AUX1_LEFT_INPUT, CS4231_AUX1_RIGHT_INPUT, 0, 0, 31, 1,
+               db_scale_5bit_12db_max),
+WSS_DOUBLE("Aux Playback Switch", 1,
+           CS4231_AUX2_LEFT_INPUT, CS4231_AUX2_RIGHT_INPUT, 7, 7, 1, 1),
+WSS_DOUBLE_TLV("Aux Playback Volume", 1,
+               CS4231_AUX2_LEFT_INPUT, CS4231_AUX2_RIGHT_INPUT, 0, 0, 31, 1,
+               db_scale_5bit_12db_max),
+WSS_DOUBLE_TLV("Capture Volume", 0, CS4231_LEFT_INPUT, CS4231_RIGHT_INPUT,
+                0, 0, 15, 0, db_scale_rec_gain),
+{
+        .name = "Capture Source",
+        .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+        .info = snd_wss_info_mux,
+        .get = snd_wss_get_mux,
+        .put = snd_wss_put_mux,
+},
+WSS_SINGLE("Loopback Capture Switch", 0, CS4231_LOOPBACK, 0, 1, 0),
+WSS_SINGLE_TLV("Loopback Capture Volume", 0, CS4231_LOOPBACK, 1, 63, 0,
+               db_scale_6bit),
+};
+
 static struct snd_kcontrol_new snd_wss_controls[] = {
 WSS_DOUBLE("PCM Playback Switch", 0,
                 CS4231_LEFT_OUTPUT, CS4231_RIGHT_OUTPUT, 7, 7, 1, 1),
@@ -2071,6 +2114,14 @@ int snd_wss_mixer(struct snd_wss *chip)
                         if (err < 0)
                                 return err;
                 }
+        else if (chip->hardware & WSS_HW_AD1848_MASK)
+                for (idx = 0; idx < ARRAY_SIZE(snd_ad1848_controls); idx++) {
+                        err = snd_ctl_add(card,
+                                        snd_ctl_new1(&snd_ad1848_controls[idx],
+                                                     chip));
+                        if (err < 0)
+                                return err;
+                }
         else
                 for (idx = 0; idx < ARRAY_SIZE(snd_wss_controls); idx++) {
                         err = snd_ctl_add(card,