1 files changed, 103 insertions, 15 deletions

diff --git a/drivers/media/video/cx88/cx88-alsa.c b/drivers/media/video/cx88/cx88-alsa.c
index 54b7fcd469a8..a2d688ebed90 100644
--- a/drivers/media/video/cx88/cx88-alsa.c
+++ b/drivers/media/video/cx88/cx88-alsa.c
@@ -40,6 +40,7 @@
 #include <sound/control.h>
 #include <sound/initval.h>
 #include <sound/tlv.h>
+#include <media/wm8775.h>
 
 #include "cx88.h"
 #include "cx88-reg.h"
@@ -577,6 +578,35 @@ static int snd_cx88_volume_get(struct snd_kcontrol *kcontrol,
         return 0;
 }
 
+static void snd_cx88_wm8775_volume_put(struct snd_kcontrol *kcontrol,
+                               struct snd_ctl_elem_value *value)
+{
+        snd_cx88_card_t *chip = snd_kcontrol_chip(kcontrol);
+        struct cx88_core *core = chip->core;
+        struct v4l2_control client_ctl;
+        int left = value->value.integer.value[0];
+        int right = value->value.integer.value[1];
+        int v, b;
+
+        memset(&client_ctl, 0, sizeof(client_ctl));
+
+        /* Pass volume & balance onto any WM8775 */
+        if (left >= right) {
+                v = left << 10;
+                b = left ? (0x8000 * right) / left : 0x8000;
+        } else {
+                v = right << 10;
+                b = right ? 0xffff - (0x8000 * left) / right : 0x8000;
+        }
+        client_ctl.value = v;
+        client_ctl.id = V4L2_CID_AUDIO_VOLUME;
+        call_hw(core, WM8775_GID, core, s_ctrl, &client_ctl);
+
+        client_ctl.value = b;
+        client_ctl.id = V4L2_CID_AUDIO_BALANCE;
+        call_hw(core, WM8775_GID, core, s_ctrl, &client_ctl);
+}
+
 /* OK - TODO: test it */
 static int snd_cx88_volume_put(struct snd_kcontrol *kcontrol,
                                struct snd_ctl_elem_value *value)
@@ -587,25 +617,28 @@ static int snd_cx88_volume_put(struct snd_kcontrol *kcontrol,
         int changed = 0;
         u32 old;
 
+        if (core->board.audio_chip == V4L2_IDENT_WM8775)
+                snd_cx88_wm8775_volume_put(kcontrol, value);
+
         left = value->value.integer.value[0] & 0x3f;
         right = value->value.integer.value[1] & 0x3f;
         b = right - left;
         if (b < 0) {
-            v = 0x3f - left;
-            b = (-b) | 0x40;
+                v = 0x3f - left;
+                b = (-b) | 0x40;
         } else {
-            v = 0x3f - right;
+                v = 0x3f - right;
         }
         /* Do we really know this will always be called with IRQs on? */
         spin_lock_irq(&chip->reg_lock);
         old = cx_read(AUD_VOL_CTL);
         if (v != (old & 0x3f)) {
-            cx_write(AUD_VOL_CTL, (old & ~0x3f) | v);
-            changed = 1;
+                cx_swrite(SHADOW_AUD_VOL_CTL, AUD_VOL_CTL, (old & ~0x3f) | v);
+                changed = 1;
         }
-        if (cx_read(AUD_BAL_CTL) != b) {
-            cx_write(AUD_BAL_CTL, b);
-            changed = 1;
+        if ((cx_read(AUD_BAL_CTL) & 0x7f) != b) {
+                cx_write(AUD_BAL_CTL, b);
+                changed = 1;
         }
         spin_unlock_irq(&chip->reg_lock);
 
@@ -618,7 +651,7 @@ static const struct snd_kcontrol_new snd_cx88_volume = {
         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
         .access = SNDRV_CTL_ELEM_ACCESS_READWRITE |
                   SNDRV_CTL_ELEM_ACCESS_TLV_READ,
-        .name = "Playback Volume",
+        .name = "Analog-TV Volume",
         .info = snd_cx88_volume_info,
         .get = snd_cx88_volume_get,
         .put = snd_cx88_volume_put,
@@ -649,7 +682,17 @@ static int snd_cx88_switch_put(struct snd_kcontrol *kcontrol,
         vol = cx_read(AUD_VOL_CTL);
         if (value->value.integer.value[0] != !(vol & bit)) {
                 vol ^= bit;
-                cx_write(AUD_VOL_CTL, vol);
+                cx_swrite(SHADOW_AUD_VOL_CTL, AUD_VOL_CTL, vol);
+                /* Pass mute onto any WM8775 */
+                if ((core->board.audio_chip == V4L2_IDENT_WM8775) &&
+                    ((1<<6) == bit)) {
+                        struct v4l2_control client_ctl;
+
+                        memset(&client_ctl, 0, sizeof(client_ctl));
+                        client_ctl.value = 0 != (vol & bit);
+                        client_ctl.id = V4L2_CID_AUDIO_MUTE;
+                        call_hw(core, WM8775_GID, core, s_ctrl, &client_ctl);
+                }
                 ret = 1;
         }
         spin_unlock_irq(&chip->reg_lock);
@@ -658,7 +701,7 @@ static int snd_cx88_switch_put(struct snd_kcontrol *kcontrol,
 
 static const struct snd_kcontrol_new snd_cx88_dac_switch = {
         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
-        .name = "Playback Switch",
+        .name = "Audio-Out Switch",
         .info = snd_ctl_boolean_mono_info,
         .get = snd_cx88_switch_get,
         .put = snd_cx88_switch_put,
@@ -667,13 +710,51 @@ static const struct snd_kcontrol_new snd_cx88_dac_switch = {
 
 static const struct snd_kcontrol_new snd_cx88_source_switch = {
         .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
-        .name = "Capture Switch",
+        .name = "Analog-TV Switch",
         .info = snd_ctl_boolean_mono_info,
         .get = snd_cx88_switch_get,
         .put = snd_cx88_switch_put,
         .private_value = (1<<6),
 };
 
+static int snd_cx88_alc_get(struct snd_kcontrol *kcontrol,
+                               struct snd_ctl_elem_value *value)
+{
+        snd_cx88_card_t *chip = snd_kcontrol_chip(kcontrol);
+        struct cx88_core *core = chip->core;
+        struct v4l2_control client_ctl;
+
+        memset(&client_ctl, 0, sizeof(client_ctl));
+        client_ctl.id = V4L2_CID_AUDIO_LOUDNESS;
+        call_hw(core, WM8775_GID, core, g_ctrl, &client_ctl);
+        value->value.integer.value[0] = client_ctl.value ? 1 : 0;
+
+        return 0;
+}
+
+static int snd_cx88_alc_put(struct snd_kcontrol *kcontrol,
+                                       struct snd_ctl_elem_value *value)
+{
+        snd_cx88_card_t *chip = snd_kcontrol_chip(kcontrol);
+        struct cx88_core *core = chip->core;
+        struct v4l2_control client_ctl;
+
+        memset(&client_ctl, 0, sizeof(client_ctl));
+        client_ctl.value = 0 != value->value.integer.value[0];
+        client_ctl.id = V4L2_CID_AUDIO_LOUDNESS;
+        call_hw(core, WM8775_GID, core, s_ctrl, &client_ctl);
+
+        return 0;
+}
+
+static struct snd_kcontrol_new snd_cx88_alc_switch = {
+        .iface = SNDRV_CTL_ELEM_IFACE_MIXER,
+        .name = "Line-In ALC Switch",
+        .info = snd_ctl_boolean_mono_info,
+        .get = snd_cx88_alc_get,
+        .put = snd_cx88_alc_put,
+};
+
 /****************************************************************************
                         Basic Flow for Sound Devices
  ****************************************************************************/
@@ -724,7 +805,8 @@ static void snd_cx88_dev_free(struct snd_card * card)
 static int devno;
 static int __devinit snd_cx88_create(struct snd_card *card,
                                      struct pci_dev *pci,
-                                     snd_cx88_card_t **rchip)
+                                     snd_cx88_card_t **rchip,
+                                     struct cx88_core **core_ptr)
 {
         snd_cx88_card_t   *chip;
         struct cx88_core  *core;
@@ -750,7 +832,7 @@ static int __devinit snd_cx88_create(struct snd_card *card,
         if (!pci_dma_supported(pci,DMA_BIT_MASK(32))) {
                 dprintk(0, "%s/1: Oops: no 32bit PCI DMA ???\n",core->name);
                 err = -EIO;
-                cx88_core_put(core,pci);
+                cx88_core_put(core, pci);
                 return err;
         }
 
@@ -786,6 +868,7 @@ static int __devinit snd_cx88_create(struct snd_card *card,
         snd_card_set_dev(card, &pci->dev);
 
         *rchip = chip;
+        *core_ptr = core;
 
         return 0;
 }
@@ -795,6 +878,7 @@ static int __devinit cx88_audio_initdev(struct pci_dev *pci,
 {
         struct snd_card  *card;
         snd_cx88_card_t  *chip;
+        struct cx88_core *core;
         int              err;
 
         if (devno >= SNDRV_CARDS)
@@ -812,7 +896,7 @@ static int __devinit cx88_audio_initdev(struct pci_dev *pci,
 
         card->private_free = snd_cx88_dev_free;
 
-        err = snd_cx88_create(card, pci, &chip);
+        err = snd_cx88_create(card, pci, &chip, &core);
         if (err < 0)
                 goto error;
 
@@ -830,6 +914,10 @@ static int __devinit cx88_audio_initdev(struct pci_dev *pci,
         if (err < 0)
                 goto error;
 
+        /* If there's a wm8775 then add a Line-In ALC switch */
+        if (core->board.audio_chip == V4L2_IDENT_WM8775)
+                snd_ctl_add(card, snd_ctl_new1(&snd_cx88_alc_switch, chip));
+
         strcpy (card->driver, "CX88x");
         sprintf(card->shortname, "Conexant CX%x", pci->device);
         sprintf(card->longname, "%s at %#llx",