ALSA: usbmixer - add usb_id value to usbmixer proc file
[safe/jmp/linux-2.6] / sound / usb / usbmixer.c
index f127bfd..03f125d 100644 (file)
@@ -69,13 +69,16 @@ static const struct rc_config {
        { USB_ID(0x041e, 0x3048), 2, 2, 6, 6,  2,  0x6e91 }, /* Toshiba SB0500 */
 };
 
+#define MAX_ID_ELEMS   256
+
 struct usb_mixer_interface {
        struct snd_usb_audio *chip;
        unsigned int ctrlif;
        struct list_head list;
        unsigned int ignore_ctl_error;
        struct urb *urb;
-       struct usb_mixer_elem_info **id_elems; /* array[256], indexed by unit id */
+       /* array[MAX_ID_ELEMS], indexed by unit id */
+       struct usb_mixer_elem_info **id_elems;
 
        /* Sound Blaster remote control stuff */
        const struct rc_config *rc_cfg;
@@ -86,6 +89,7 @@ struct usb_mixer_interface {
        u8 rc_buffer[6];
 
        u8 audigy2nx_leds[3];
+       u8 xonar_u1_status;
 };
 
 
@@ -122,6 +126,7 @@ struct usb_mixer_elem_info {
        int channels;
        int val_type;
        int min, max, res;
+       int dBmin, dBmax;
        int cached;
        int cache_val[MAX_CHANNELS];
        u8 initialized;
@@ -185,6 +190,21 @@ enum {
        USB_PROC_DCR_RELEASE = 6,
 };
 
+/*E-mu 0202(0404) eXtension Unit(XU) control*/
+enum {
+       USB_XU_CLOCK_RATE               = 0xe301,
+       USB_XU_CLOCK_SOURCE             = 0xe302,
+       USB_XU_DIGITAL_IO_STATUS        = 0xe303,
+       USB_XU_DEVICE_OPTIONS           = 0xe304,
+       USB_XU_DIRECT_MONITORING        = 0xe305,
+       USB_XU_METERING                 = 0xe306
+};
+enum {
+       USB_XU_CLOCK_SOURCE_SELECTOR = 0x02,    /* clock source*/
+       USB_XU_CLOCK_RATE_SELECTOR = 0x03,      /* clock rate */
+       USB_XU_DIGITAL_FORMAT_SELECTOR = 0x01,  /* the spdif format */
+       USB_XU_SOFT_LIMIT_SELECTOR = 0x03       /* soft limiter */
+};
 
 /*
  * manual mapping of mixer names
@@ -193,42 +213,50 @@ enum {
  */
 #include "usbmixer_maps.c"
 
-/* get the mapped name if the unit matches */
-static int check_mapped_name(struct mixer_build *state, int unitid, int control, char *buf, int buflen)
+static const struct usbmix_name_map *
+find_map(struct mixer_build *state, int unitid, int control)
 {
-       const struct usbmix_name_map *p;
+       const struct usbmix_name_map *p = state->map;
 
-       if (! state->map)
-               return 0;
+       if (!p)
+               return NULL;
 
        for (p = state->map; p->id; p++) {
-               if (p->id == unitid && p->name &&
-                   (! control || ! p->control || control == p->control)) {
-                       buflen--;
-                       return strlcpy(buf, p->name, buflen);
-               }
+               if (p->id == unitid &&
+                   (!control || !p->control || control == p->control))
+                       return p;
        }
-       return 0;
+       return NULL;
 }
 
-/* check whether the control should be ignored */
-static int check_ignored_ctl(struct mixer_build *state, int unitid, int control)
+/* get the mapped name if the unit matches */
+static int
+check_mapped_name(const struct usbmix_name_map *p, char *buf, int buflen)
 {
-       const struct usbmix_name_map *p;
+       if (!p || !p->name)
+               return 0;
+
+       buflen--;
+       return strlcpy(buf, p->name, buflen);
+}
 
-       if (! state->map)
+/* check whether the control should be ignored */
+static inline int
+check_ignored_ctl(const struct usbmix_name_map *p)
+{
+       if (!p || p->name || p->dB)
                return 0;
-       for (p = state->map; p->id; p++) {
-               if (p->id == unitid && ! p->name &&
-                   (! control || ! p->control || control == p->control)) {
-                       /*
-                       printk(KERN_DEBUG "ignored control %d:%d\n",
-                              unitid, control);
-                       */
-                       return 1;
-               }
+       return 1;
+}
+
+/* dB mapping */
+static inline void check_mapped_dB(const struct usbmix_name_map *p,
+                                  struct usb_mixer_elem_info *cval)
+{
+       if (p && p->dB) {
+               cval->dBmin = p->dB->min;
+               cval->dBmax = p->dB->max;
        }
-       return 0;
 }
 
 /* get the mapped selector source name */
@@ -423,7 +451,7 @@ static int set_ctl_value(struct usb_mixer_elem_info *cval, int request, int vali
        value_set = convert_bytes_value(cval, value_set);
        buf[0] = value_set & 0xff;
        buf[1] = (value_set >> 8) & 0xff;
-       while (timeout -- > 0)
+       while (timeout-- > 0)
                if (snd_usb_ctl_msg(cval->mixer->chip->dev,
                                    usb_sndctrlpipe(cval->mixer->chip->dev, 0),
                                    request,
@@ -465,11 +493,8 @@ static int mixer_vol_tlv(struct snd_kcontrol *kcontrol, int op_flag,
 
        if (size < sizeof(scale))
                return -ENOMEM;
-       /* USB descriptions contain the dB scale in 1/256 dB unit
-        * while ALSA TLV contains in 1/100 dB unit
-        */
-       scale[2] = (convert_signed_value(cval, cval->min) * 100) / 256;
-       scale[3] = (convert_signed_value(cval, cval->max) * 100) / 256;
+       scale[2] = cval->dBmin;
+       scale[3] = cval->dBmax;
        if (copy_to_user(_tlv, scale, sizeof(scale)))
                return -EFAULT;
        return 0;
@@ -710,6 +735,7 @@ static int get_min_max(struct usb_mixer_elem_info *cval, int default_min)
        cval->min = default_min;
        cval->max = cval->min + 1;
        cval->res = 1;
+       cval->dBmin = cval->dBmax = 0;
 
        if (cval->val_type == USB_MIXER_BOOLEAN ||
            cval->val_type == USB_MIXER_INV_BOOLEAN) {
@@ -777,6 +803,24 @@ static int get_min_max(struct usb_mixer_elem_info *cval, int default_min)
 
                cval->initialized = 1;
        }
+
+       /* USB descriptions contain the dB scale in 1/256 dB unit
+        * while ALSA TLV contains in 1/100 dB unit
+        */
+       cval->dBmin = (convert_signed_value(cval, cval->min) * 100) / 256;
+       cval->dBmax = (convert_signed_value(cval, cval->max) * 100) / 256;
+       if (cval->dBmin > cval->dBmax) {
+               /* something is wrong; assume it's either from/to 0dB */
+               if (cval->dBmin < 0)
+                       cval->dBmax = 0;
+               else if (cval->dBmin > 0)
+                       cval->dBmin = 0;
+               if (cval->dBmin > cval->dBmax) {
+                       /* totally crap, return an error */
+                       return -EINVAL;
+               }
+       }
+
        return 0;
 }
 
@@ -888,6 +932,11 @@ static struct snd_kcontrol_new usb_feature_unit_ctl = {
  * build a feature control
  */
 
+static size_t append_ctl_name(struct snd_kcontrol *kctl, const char *str)
+{
+       return strlcat(kctl->id.name, str, sizeof(kctl->id.name));
+}
+
 static void build_feature_ctl(struct mixer_build *state, unsigned char *desc,
                              unsigned int ctl_mask, int control,
                              struct usb_audio_term *iterm, int unitid)
@@ -897,6 +946,7 @@ static void build_feature_ctl(struct mixer_build *state, unsigned char *desc,
        int nameid = desc[desc[0] - 1];
        struct snd_kcontrol *kctl;
        struct usb_mixer_elem_info *cval;
+       const struct usbmix_name_map *map;
 
        control++; /* change from zero-based to 1-based value */
 
@@ -905,7 +955,8 @@ static void build_feature_ctl(struct mixer_build *state, unsigned char *desc,
                return;
        }
 
-       if (check_ignored_ctl(state, unitid, control))
+       map = find_map(state, unitid, control);
+       if (check_ignored_ctl(map))
                return;
 
        cval = kzalloc(sizeof(*cval), GFP_KERNEL);
@@ -939,10 +990,11 @@ static void build_feature_ctl(struct mixer_build *state, unsigned char *desc,
        }
        kctl->private_free = usb_mixer_elem_free;
 
-       len = check_mapped_name(state, unitid, control, kctl->id.name, sizeof(kctl->id.name));
+       len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name));
        mapped_name = len != 0;
        if (! len && nameid)
-               len = snd_usb_copy_string_desc(state, nameid, kctl->id.name, sizeof(kctl->id.name));
+               len = snd_usb_copy_string_desc(state, nameid,
+                               kctl->id.name, sizeof(kctl->id.name));
 
        switch (control) {
        case USB_FEATURE_MUTE:
@@ -968,18 +1020,19 @@ static void build_feature_ctl(struct mixer_build *state, unsigned char *desc,
                 */
                if (! mapped_name && ! (state->oterm.type >> 16)) {
                        if ((state->oterm.type & 0xff00) == 0x0100) {
-                               len = strlcat(kctl->id.name, " Capture", sizeof(kctl->id.name));
+                               len = append_ctl_name(kctl, " Capture");
                        } else {
-                               len = strlcat(kctl->id.name + len, " Playback", sizeof(kctl->id.name));
+                               len = append_ctl_name(kctl, " Playback");
                        }
                }
-               strlcat(kctl->id.name + len, control == USB_FEATURE_MUTE ? " Switch" : " Volume",
-                       sizeof(kctl->id.name));
+               append_ctl_name(kctl, control == USB_FEATURE_MUTE ?
+                               " Switch" : " Volume");
                if (control == USB_FEATURE_VOLUME) {
                        kctl->tlv.c = mixer_vol_tlv;
                        kctl->vd[0].access |= 
                                SNDRV_CTL_ELEM_ACCESS_TLV_READ |
                                SNDRV_CTL_ELEM_ACCESS_TLV_CALLBACK;
+                       check_mapped_dB(map, cval);
                }
                break;
 
@@ -990,20 +1043,35 @@ static void build_feature_ctl(struct mixer_build *state, unsigned char *desc,
                break;
        }
 
-       /* quirk for UDA1321/N101 */
-       /* note that detection between firmware 2.1.1.7 (N101) and later 2.1.1.21 */
-       /* is not very clear from datasheets */
-       /* I hope that the min value is -15360 for newer firmware --jk */
+       /* volume control quirks */
        switch (state->chip->usb_id) {
        case USB_ID(0x0471, 0x0101):
        case USB_ID(0x0471, 0x0104):
        case USB_ID(0x0471, 0x0105):
        case USB_ID(0x0672, 0x1041):
+       /* quirk for UDA1321/N101.
+        * note that detection between firmware 2.1.1.7 (N101)
+        * and later 2.1.1.21 is not very clear from datasheets.
+        * I hope that the min value is -15360 for newer firmware --jk
+        */
                if (!strcmp(kctl->id.name, "PCM Playback Volume") &&
                    cval->min == -15616) {
-                       snd_printk(KERN_INFO "using volume control quirk for the UDA1321/N101 chip\n");
+                       snd_printk(KERN_INFO
+                                "set volume quirk for UDA1321/N101 chip\n");
                        cval->max = -256;
                }
+               break;
+
+       case USB_ID(0x046d, 0x09a4):
+               if (!strcmp(kctl->id.name, "Mic Capture Volume")) {
+                       snd_printk(KERN_INFO
+                               "set volume quirk for QuickCam E3500\n");
+                       cval->min = 6080;
+                       cval->max = 8768;
+                       cval->res = 192;
+               }
+               break;
+
        }
 
        snd_printdd(KERN_INFO "[%d] FU [%s] ch = %d, val = %d/%d/%d\n",
@@ -1041,6 +1109,15 @@ static int parse_audio_feature_unit(struct mixer_build *state, int unitid, unsig
        channels = (ftr[0] - 7) / csize - 1;
 
        master_bits = snd_usb_combine_bytes(ftr + 6, csize);
+       /* master configuration quirks */
+       switch (state->chip->usb_id) {
+       case USB_ID(0x08bb, 0x2702):
+               snd_printk(KERN_INFO
+                          "usbmixer: master volume quirk for PCM2702 chip\n");
+               /* disable non-functional volume control */
+               master_bits &= ~(1 << (USB_FEATURE_VOLUME - 1));
+               break;
+       }
        if (channels > 0)
                first_ch_bits = snd_usb_combine_bytes(ftr + 6 + csize, csize);
        else
@@ -1083,8 +1160,10 @@ static void build_mixer_unit_ctl(struct mixer_build *state, unsigned char *desc,
        unsigned int num_outs = desc[5 + input_pins];
        unsigned int i, len;
        struct snd_kcontrol *kctl;
+       const struct usbmix_name_map *map;
 
-       if (check_ignored_ctl(state, unitid, 0))
+       map = find_map(state, unitid, 0);
+       if (check_ignored_ctl(map))
                return;
 
        cval = kzalloc(sizeof(*cval), GFP_KERNEL);
@@ -1113,12 +1192,12 @@ static void build_mixer_unit_ctl(struct mixer_build *state, unsigned char *desc,
        }
        kctl->private_free = usb_mixer_elem_free;
 
-       len = check_mapped_name(state, unitid, 0, kctl->id.name, sizeof(kctl->id.name));
+       len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name));
        if (! len)
                len = get_term_name(state, iterm, kctl->id.name, sizeof(kctl->id.name), 0);
        if (! len)
                len = sprintf(kctl->id.name, "Mixer Source %d", in_ch + 1);
-       strlcat(kctl->id.name + len, " Volume", sizeof(kctl->id.name));
+       append_ctl_name(kctl, " Volume");
 
        snd_printdd(KERN_INFO "[%d] MU [%s] ch = %d, val = %d/%d\n",
                    cval->id, kctl->id.name, cval->channels, cval->min, cval->max);
@@ -1291,7 +1370,32 @@ static struct procunit_info procunits[] = {
        { USB_PROC_DCR, "DCR", dcr_proc_info },
        { 0 },
 };
-
+/*
+ * predefined data for extension units
+ */
+static struct procunit_value_info clock_rate_xu_info[] = {
+       { USB_XU_CLOCK_RATE_SELECTOR, "Selector", USB_MIXER_U8, 0 },
+       { 0 }
+};
+static struct procunit_value_info clock_source_xu_info[] = {
+       { USB_XU_CLOCK_SOURCE_SELECTOR, "External", USB_MIXER_BOOLEAN },
+       { 0 }
+};
+static struct procunit_value_info spdif_format_xu_info[] = {
+       { USB_XU_DIGITAL_FORMAT_SELECTOR, "SPDIF/AC3", USB_MIXER_BOOLEAN },
+       { 0 }
+};
+static struct procunit_value_info soft_limit_xu_info[] = {
+       { USB_XU_SOFT_LIMIT_SELECTOR, " ", USB_MIXER_BOOLEAN },
+       { 0 }
+};
+static struct procunit_info extunits[] = {
+       { USB_XU_CLOCK_RATE, "Clock rate", clock_rate_xu_info },
+       { USB_XU_CLOCK_SOURCE, "DigitalIn CLK source", clock_source_xu_info },
+       { USB_XU_DIGITAL_IO_STATUS, "DigitalOut format:", spdif_format_xu_info },
+       { USB_XU_DEVICE_OPTIONS, "AnalogueIn Soft Limit", soft_limit_xu_info },
+       { 0 }
+};
 /*
  * build a processing/extension unit
  */
@@ -1303,6 +1407,7 @@ static int build_audio_procunit(struct mixer_build *state, int unitid, unsigned
        int i, err, nameid, type, len;
        struct procunit_info *info;
        struct procunit_value_info *valinfo;
+       const struct usbmix_name_map *map;
        static struct procunit_value_info default_value_info[] = {
                { 0x01, "Switch", USB_MIXER_BOOLEAN },
                { 0 }
@@ -1332,7 +1437,8 @@ static int build_audio_procunit(struct mixer_build *state, int unitid, unsigned
                /* FIXME: bitmap might be longer than 8bit */
                if (! (dsc[12 + num_ins] & (1 << (valinfo->control - 1))))
                        continue;
-               if (check_ignored_ctl(state, unitid, valinfo->control))
+               map = find_map(state, unitid, valinfo->control);
+               if (check_ignored_ctl(map))
                        continue;
                cval = kzalloc(sizeof(*cval), GFP_KERNEL);
                if (! cval) {
@@ -1352,8 +1458,18 @@ static int build_audio_procunit(struct mixer_build *state, int unitid, unsigned
                        cval->max = dsc[15];
                        cval->res = 1;
                        cval->initialized = 1;
-               } else
-                       get_min_max(cval, valinfo->min_value);
+               } else {
+                       if (type == USB_XU_CLOCK_RATE) {
+                               /* E-Mu USB 0404/0202/TrackerPre
+                                * samplerate control quirk
+                                */
+                               cval->min = 0;
+                               cval->max = 5;
+                               cval->res = 1;
+                               cval->initialized = 1;
+                       } else
+                               get_min_max(cval, valinfo->min_value);
+               }
 
                kctl = snd_ctl_new1(&mixer_procunit_ctl, cval);
                if (! kctl) {
@@ -1363,8 +1479,9 @@ static int build_audio_procunit(struct mixer_build *state, int unitid, unsigned
                }
                kctl->private_free = usb_mixer_elem_free;
 
-               if (check_mapped_name(state, unitid, cval->control, kctl->id.name, sizeof(kctl->id.name)))
-                       ;
+               if (check_mapped_name(map, kctl->id.name,
+                                               sizeof(kctl->id.name)))
+                       /* nothing */ ;
                else if (info->name)
                        strlcpy(kctl->id.name, info->name, sizeof(kctl->id.name));
                else {
@@ -1375,8 +1492,8 @@ static int build_audio_procunit(struct mixer_build *state, int unitid, unsigned
                        if (! len)
                                strlcpy(kctl->id.name, name, sizeof(kctl->id.name));
                }
-               strlcat(kctl->id.name, " ", sizeof(kctl->id.name));
-               strlcat(kctl->id.name, valinfo->suffix, sizeof(kctl->id.name));
+               append_ctl_name(kctl, " ");
+               append_ctl_name(kctl, valinfo->suffix);
 
                snd_printdd(KERN_INFO "[%d] PU [%s] ch = %d, val = %d/%d\n",
                            cval->id, kctl->id.name, cval->channels, cval->min, cval->max);
@@ -1394,7 +1511,7 @@ static int parse_audio_processing_unit(struct mixer_build *state, int unitid, un
 
 static int parse_audio_extension_unit(struct mixer_build *state, int unitid, unsigned char *desc)
 {
-       return build_audio_procunit(state, unitid, desc, NULL, "Extension Unit");
+       return build_audio_procunit(state, unitid, desc, extunits, "Extension Unit");
 }
 
 
@@ -1503,6 +1620,7 @@ static int parse_audio_selector_unit(struct mixer_build *state, int unitid, unsi
        int err;
        struct usb_mixer_elem_info *cval;
        struct snd_kcontrol *kctl;
+       const struct usbmix_name_map *map;
        char **namelist;
 
        if (! num_ins || desc[0] < 5 + num_ins) {
@@ -1518,7 +1636,8 @@ static int parse_audio_selector_unit(struct mixer_build *state, int unitid, unsi
        if (num_ins == 1) /* only one ? nonsense! */
                return 0;
 
-       if (check_ignored_ctl(state, unitid, 0))
+       map = find_map(state, unitid, 0);
+       if (check_ignored_ctl(map))
                return 0;
 
        cval = kzalloc(sizeof(*cval), GFP_KERNEL);
@@ -1573,7 +1692,7 @@ static int parse_audio_selector_unit(struct mixer_build *state, int unitid, unsi
        kctl->private_free = usb_mixer_selector_elem_free;
 
        nameid = desc[desc[0] - 1];
-       len = check_mapped_name(state, unitid, 0, kctl->id.name, sizeof(kctl->id.name));
+       len = check_mapped_name(map, kctl->id.name, sizeof(kctl->id.name));
        if (len)
                ;
        else if (nameid)
@@ -1585,9 +1704,9 @@ static int parse_audio_selector_unit(struct mixer_build *state, int unitid, unsi
                        strlcpy(kctl->id.name, "USB", sizeof(kctl->id.name));
 
                if ((state->oterm.type & 0xff00) == 0x0100)
-                       strlcat(kctl->id.name, " Capture Source", sizeof(kctl->id.name));
+                       append_ctl_name(kctl, " Capture Source");
                else
-                       strlcat(kctl->id.name, " Playback Source", sizeof(kctl->id.name));
+                       append_ctl_name(kctl, " Playback Source");
        }
 
        snd_printdd(KERN_INFO "[%d] SU [%s] items = %d\n",
@@ -1709,6 +1828,46 @@ static void snd_usb_mixer_notify_id(struct usb_mixer_interface *mixer,
                               info->elem_id);
 }
 
+static void snd_usb_mixer_dump_cval(struct snd_info_buffer *buffer,
+                                   int unitid,
+                                   struct usb_mixer_elem_info *cval)
+{
+       static char *val_types[] = {"BOOLEAN", "INV_BOOLEAN",
+                                   "S8", "U8", "S16", "U16"};
+       snd_iprintf(buffer, "  Unit: %i\n", unitid);
+       if (cval->elem_id)
+               snd_iprintf(buffer, "    Control: name=\"%s\", index=%i\n",
+                               cval->elem_id->name, cval->elem_id->index);
+       snd_iprintf(buffer, "    Info: id=%i, control=%i, cmask=0x%x, "
+                           "channels=%i, type=\"%s\"\n", cval->id,
+                           cval->control, cval->cmask, cval->channels,
+                           val_types[cval->val_type]);
+       snd_iprintf(buffer, "    Volume: min=%i, max=%i, dBmin=%i, dBmax=%i\n",
+                           cval->min, cval->max, cval->dBmin, cval->dBmax);
+}
+
+static void snd_usb_mixer_proc_read(struct snd_info_entry *entry,
+                                   struct snd_info_buffer *buffer)
+{
+       struct snd_usb_audio *chip = entry->private_data;
+       struct usb_mixer_interface *mixer;
+       struct usb_mixer_elem_info *cval;
+       int unitid;
+
+       list_for_each_entry(mixer, &chip->mixer_list, list) {
+               snd_iprintf(buffer,
+                       "USB Mixer: usb_id=0x%08x, ctrlif=%i, ctlerr=%i\n",
+                               chip->usb_id, mixer->ctrlif,
+                               mixer->ignore_ctl_error);
+               snd_iprintf(buffer, "Card: %s\n", chip->card->longname);
+               for (unitid = 0; unitid < MAX_ID_ELEMS; unitid++) {
+                       for (cval = mixer->id_elems[unitid]; cval;
+                                               cval = cval->next_id_elem)
+                               snd_usb_mixer_dump_cval(buffer, unitid, cval);
+               }
+       }
+}
+
 static void snd_usb_mixer_memory_change(struct usb_mixer_interface *mixer,
                                        int unitid)
 {
@@ -2018,6 +2177,76 @@ static void snd_audigy2nx_proc_read(struct snd_info_entry *entry,
        }
 }
 
+static int snd_xonar_u1_switch_get(struct snd_kcontrol *kcontrol,
+                                  struct snd_ctl_elem_value *ucontrol)
+{
+       struct usb_mixer_interface *mixer = snd_kcontrol_chip(kcontrol);
+
+       ucontrol->value.integer.value[0] = !!(mixer->xonar_u1_status & 0x02);
+       return 0;
+}
+
+static int snd_xonar_u1_switch_put(struct snd_kcontrol *kcontrol,
+                                  struct snd_ctl_elem_value *ucontrol)
+{
+       struct usb_mixer_interface *mixer = snd_kcontrol_chip(kcontrol);
+       u8 old_status, new_status;
+       int err, changed;
+
+       old_status = mixer->xonar_u1_status;
+       if (ucontrol->value.integer.value[0])
+               new_status = old_status | 0x02;
+       else
+               new_status = old_status & ~0x02;
+       changed = new_status != old_status;
+       err = snd_usb_ctl_msg(mixer->chip->dev,
+                             usb_sndctrlpipe(mixer->chip->dev, 0), 0x08,
+                             USB_DIR_OUT | USB_TYPE_VENDOR | USB_RECIP_OTHER,
+                             50, 0, &new_status, 1, 100);
+       if (err < 0)
+               return err;
+       mixer->xonar_u1_status = new_status;
+       return changed;
+}
+
+static struct snd_kcontrol_new snd_xonar_u1_output_switch = {
+       .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+       .name = "Digital Playback Switch",
+       .info = snd_ctl_boolean_mono_info,
+       .get = snd_xonar_u1_switch_get,
+       .put = snd_xonar_u1_switch_put,
+};
+
+static int snd_xonar_u1_controls_create(struct usb_mixer_interface *mixer)
+{
+       int err;
+
+       err = snd_ctl_add(mixer->chip->card,
+                         snd_ctl_new1(&snd_xonar_u1_output_switch, mixer));
+       if (err < 0)
+               return err;
+       mixer->xonar_u1_status = 0x05;
+       return 0;
+}
+
+void snd_emuusb_set_samplerate(struct snd_usb_audio *chip,
+                              unsigned char samplerate_id)
+{
+       struct usb_mixer_interface *mixer;
+       struct usb_mixer_elem_info *cval;
+       int unitid = 12; /* SamleRate ExtensionUnit ID */
+
+       list_for_each_entry(mixer, &chip->mixer_list, list) {
+               cval = mixer->id_elems[unitid];
+               if (cval) {
+                       set_cur_ctl_value(cval, cval->control << 8,
+                                         samplerate_id);
+                       snd_usb_mixer_notify_id(mixer, unitid);
+               }
+               break;
+       }
+}
+
 int snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif,
                         int ignore_error)
 {
@@ -2025,6 +2254,7 @@ int snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif,
                .dev_free = snd_usb_mixer_dev_free
        };
        struct usb_mixer_interface *mixer;
+       struct snd_info_entry *entry;
        int err;
 
        strcpy(chip->card->mixername, "USB Mixer");
@@ -2051,8 +2281,6 @@ int snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif,
        if (mixer->chip->usb_id == USB_ID(0x041e, 0x3020) ||
            mixer->chip->usb_id == USB_ID(0x041e, 0x3040) ||
            mixer->chip->usb_id == USB_ID(0x041e, 0x3048)) {
-               struct snd_info_entry *entry;
-
                if ((err = snd_audigy2nx_controls_create(mixer)) < 0)
                        goto _error;
                if (!snd_card_proc_new(chip->card, "audigy2nx", &entry))
@@ -2060,9 +2288,21 @@ int snd_usb_create_mixer(struct snd_usb_audio *chip, int ctrlif,
                                              snd_audigy2nx_proc_read);
        }
 
+       if (mixer->chip->usb_id == USB_ID(0x0b05, 0x1739) ||
+           mixer->chip->usb_id == USB_ID(0x0b05, 0x1743)) {
+               err = snd_xonar_u1_controls_create(mixer);
+               if (err < 0)
+                       goto _error;
+       }
+
        err = snd_device_new(chip->card, SNDRV_DEV_LOWLEVEL, mixer, &dev_ops);
        if (err < 0)
                goto _error;
+
+       if (list_empty(&chip->mixer_list) &&
+           !snd_card_proc_new(chip->card, "usbmixer", &entry))
+               snd_info_set_text_ops(entry, chip, snd_usb_mixer_proc_read);
+
        list_add(&mixer->list, &chip->mixer_list);
        return 0;