1 files changed, 49 insertions, 13 deletions

diff --git a/sound/pci/ice1712/delta.c b/sound/pci/ice1712/delta.c
index 9a51d34e6817..af659800c9b0 100644
--- a/sound/pci/ice1712/delta.c
+++ b/sound/pci/ice1712/delta.c
@@ -28,6 +28,8 @@
 #include <linux/interrupt.h>
 #include <linux/init.h>
 #include <linux/slab.h>
+#include <linux/mutex.h>
+
 #include <sound/core.h>
 #include <sound/cs8427.h>
 #include <sound/asoundef.h>
@@ -130,13 +132,13 @@ static int ap_cs8427_sendbytes(struct snd_i2c_device *device, unsigned char *byt
         int res = count;
         unsigned char tmp;
 
-        down(&ice->gpio_mutex);
+        mutex_lock(&ice->gpio_mutex);
         tmp = ap_cs8427_codec_select(ice);
         ap_cs8427_write_byte(ice, (device->addr << 1) | 0, tmp); /* address + write mode */
         while (count-- > 0)
                 ap_cs8427_write_byte(ice, *bytes++, tmp);
         ap_cs8427_codec_deassert(ice, tmp);
-        up(&ice->gpio_mutex);
+        mutex_unlock(&ice->gpio_mutex);
         return res;
 }
 
@@ -147,13 +149,13 @@ static int ap_cs8427_readbytes(struct snd_i2c_device *device, unsigned char *byt
         int res = count;
         unsigned char tmp;
         
-        down(&ice->gpio_mutex);
+        mutex_lock(&ice->gpio_mutex);
         tmp = ap_cs8427_codec_select(ice);
         ap_cs8427_write_byte(ice, (device->addr << 1) | 1, tmp); /* address + read mode */
         while (count-- > 0)
                 *bytes++ = ap_cs8427_read_byte(ice, tmp);
         ap_cs8427_codec_deassert(ice, tmp);
-        up(&ice->gpio_mutex);
+        mutex_unlock(&ice->gpio_mutex);
         return res;
 }
 
@@ -180,7 +182,7 @@ static void snd_ice1712_delta_cs8403_spdif_write(struct snd_ice1712 *ice, unsign
         /* send byte to transmitter */
         mask1 = ICE1712_DELTA_SPDIF_OUT_STAT_CLOCK;
         mask2 = ICE1712_DELTA_SPDIF_OUT_STAT_DATA;
-        down(&ice->gpio_mutex);
+        mutex_lock(&ice->gpio_mutex);
         tmp = snd_ice1712_read(ice, ICE1712_IREG_GPIO_DATA);
         for (idx = 7; idx >= 0; idx--) {
                 tmp &= ~(mask1 | mask2);
@@ -194,7 +196,7 @@ static void snd_ice1712_delta_cs8403_spdif_write(struct snd_ice1712 *ice, unsign
         }
         tmp &= ~mask1;
         snd_ice1712_write(ice, ICE1712_IREG_GPIO_DATA, tmp);
-        up(&ice->gpio_mutex);
+        mutex_unlock(&ice->gpio_mutex);
 }
 
 
@@ -296,14 +298,14 @@ static void delta_1010_set_rate_val(struct snd_ice1712 *ice, unsigned int rate)
         if (rate == 0)  /* no hint - S/PDIF input is master, simply return */
                 return;
 
-        down(&ice->gpio_mutex);
+        mutex_lock(&ice->gpio_mutex);
         tmp = snd_ice1712_read(ice, ICE1712_IREG_GPIO_DATA);
         tmp2 = tmp & ~ICE1712_DELTA_DFS;
         if (rate > 48000)
                 tmp2 |= ICE1712_DELTA_DFS;
         if (tmp != tmp2)
                 snd_ice1712_write(ice, ICE1712_IREG_GPIO_DATA, tmp2);
-        up(&ice->gpio_mutex);
+        mutex_unlock(&ice->gpio_mutex);
 }
 
 /*
@@ -318,9 +320,9 @@ static void delta_ak4524_set_rate_val(struct snd_akm4xxx *ak, unsigned int rate)
                 return;
 
         /* check before reset ak4524 to avoid unnecessary clicks */
-        down(&ice->gpio_mutex);
+        mutex_lock(&ice->gpio_mutex);
         tmp = snd_ice1712_read(ice, ICE1712_IREG_GPIO_DATA);
-        up(&ice->gpio_mutex);
+        mutex_unlock(&ice->gpio_mutex);
         tmp2 = tmp & ~ICE1712_DELTA_DFS; 
         if (rate > 48000)
                 tmp2 |= ICE1712_DELTA_DFS;
@@ -329,12 +331,12 @@ static void delta_ak4524_set_rate_val(struct snd_akm4xxx *ak, unsigned int rate)
 
         /* do it again */
         snd_akm4xxx_reset(ak, 1);
-        down(&ice->gpio_mutex);
+        mutex_lock(&ice->gpio_mutex);
         tmp = snd_ice1712_read(ice, ICE1712_IREG_GPIO_DATA) & ~ICE1712_DELTA_DFS;
         if (rate > 48000)
                 tmp |= ICE1712_DELTA_DFS;
         snd_ice1712_write(ice, ICE1712_IREG_GPIO_DATA, tmp);
-        up(&ice->gpio_mutex);
+        mutex_unlock(&ice->gpio_mutex);
         snd_akm4xxx_reset(ak, 0);
 }
 
@@ -391,6 +393,37 @@ static void delta_setup_spdif(struct snd_ice1712 *ice, int rate)
         snd_ice1712_delta_cs8403_spdif_write(ice, tmp);
 }
 
+static 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;
+}
+
+static 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 ? 1 : 0);
+        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
@@ -620,7 +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 =
@@ -653,6 +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;
         }