1 files changed, 35 insertions, 1 deletions

diff --git a/sound/pci/ice1712/delta.c b/sound/pci/ice1712/delta.c
index 4bbf1e2ae653..74c4d03720bb 100644
--- a/sound/pci/ice1712/delta.c
+++ b/sound/pci/ice1712/delta.c
@@ -393,6 +393,37 @@ static void delta_setup_spdif(struct snd_ice1712 *ice, int rate)
         snd_ice1712_delta_cs8403_spdif_write(ice, tmp);
 }
 
+int snd_ice1712_delta1010lt_wordclock_status_info(struct snd_kcontrol *kcontrol,
+                          struct snd_ctl_elem_info *uinfo)
+{
+        uinfo->type = SNDRV_CTL_ELEM_TYPE_BOOLEAN;
+        uinfo->count = 1;
+        uinfo->value.integer.min = 0;
+        uinfo->value.integer.max = 1;
+        return 0;
+}
+
+int snd_ice1712_delta1010lt_wordclock_status_get(struct snd_kcontrol *kcontrol,
+                         struct snd_ctl_elem_value *ucontrol)
+{
+        char reg = 0x10; // cs8427 receiver error register
+        struct snd_ice1712 *ice = snd_kcontrol_chip(kcontrol);
+
+        if (snd_i2c_sendbytes(ice->cs8427, &reg, 1) != 1)
+                snd_printk(KERN_ERR "unable to send register 0x%x byte to CS8427\n", reg);
+        snd_i2c_readbytes(ice->cs8427, &reg, 1);
+        ucontrol->value.integer.value[0] = (reg ? 0 : 1);
+        return 0;
+}
+
+static struct snd_kcontrol_new snd_ice1712_delta1010lt_wordclock_status __devinitdata =
+{
+        .access =       (SNDRV_CTL_ELEM_ACCESS_READ),
+        .iface =        SNDRV_CTL_ELEM_IFACE_MIXER,
+        .name =         "Word Clock Status",
+        .info =         snd_ice1712_delta1010lt_wordclock_status_info,
+        .get =          snd_ice1712_delta1010lt_wordclock_status_get,
+};
 
 /*
  * initialize the chips on M-Audio cards
@@ -622,7 +653,7 @@ static int __devinit snd_ice1712_delta_init(struct snd_ice1712 *ice)
 static struct snd_kcontrol_new snd_ice1712_delta1010_wordclock_select __devinitdata =
 ICE1712_GPIO(SNDRV_CTL_ELEM_IFACE_MIXER, "Word Clock Sync", 0, ICE1712_DELTA_WORD_CLOCK_SELECT, 1, 0);
 static struct snd_kcontrol_new snd_ice1712_delta1010lt_wordclock_select __devinitdata =
-ICE1712_GPIO(SNDRV_CTL_ELEM_IFACE_MIXER, "Word Clock Sync", 0, ICE1712_DELTA_1010LT_WORDCLOCK, 1, 0);
+ICE1712_GPIO(SNDRV_CTL_ELEM_IFACE_MIXER, "Word Clock Sync", 0, ICE1712_DELTA_1010LT_WORDCLOCK, 0, 0);
 static struct snd_kcontrol_new snd_ice1712_delta1010_wordclock_status __devinitdata =
 ICE1712_GPIO(SNDRV_CTL_ELEM_IFACE_MIXER, "Word Clock Status", 0, ICE1712_DELTA_WORD_CLOCK_STATUS, 1, SNDRV_CTL_ELEM_ACCESS_READ | SNDRV_CTL_ELEM_ACCESS_VOLATILE);
 static struct snd_kcontrol_new snd_ice1712_deltadio2496_spdif_in_select __devinitdata =
@@ -655,6 +686,9 @@ static int __devinit snd_ice1712_delta_add_controls(struct snd_ice1712 *ice)
                 err = snd_ctl_add(ice->card, snd_ctl_new1(&snd_ice1712_delta1010lt_wordclock_select, ice));
                 if (err < 0)
                         return err;
+                err = snd_ctl_add(ice->card, snd_ctl_new1(&snd_ice1712_delta1010lt_wordclock_status, ice));
+                if (err < 0)
+                        return err;
                 break;
         }