[ALSA] MC97 modem mixer in sound/pci/ac97

AC97 Codec
Simple MC97 modem mixer with two common controls: Off-hook and CID,
and Si3056 MC specific control: Modem Speaker.

Signed-off-by: Sasha Khapyorsky <sashak@smlink.com>
Signed-off-by: Jaroslav Kysela <perex@suse.cz>

1 files changed, 19 insertions, 2 deletions

diff --git a/sound/pci/ac97/ac97_patch.c b/sound/pci/ac97/ac97_patch.c
index b81064133c61..a15eb8522b7c 100644
--- a/sound/pci/ac97/ac97_patch.c
+++ b/sound/pci/ac97/ac97_patch.c
@@ -2459,12 +2459,29 @@ int patch_it2646(ac97_t * ac97)
         return 0;
 }
 
-/* Si3036/8 specific registers */
+/*
+ * Si3036 codec
+ */
+
 #define AC97_SI3036_CHIP_ID     0x5a
+#define AC97_SI3036_LINE_CFG    0x5c
+
+static const snd_kcontrol_new_t snd_ac97_controls_si3036[] = {
+AC97_DOUBLE("Modem Speaker Volume", 0x5c, 14, 12, 3, 1)
+};
+
+static int patch_si3036_specific(ac97_t * ac97)
+{
+        return patch_build_controls(ac97, snd_ac97_controls_si3036, ARRAY_SIZE(snd_ac97_controls_si3036));
+}
+
+static struct snd_ac97_build_ops patch_si3036_ops = {
+        .build_specific = patch_si3036_specific,
+};
 
 int mpatch_si3036(ac97_t * ac97)
 {
-        //printk("mpatch_si3036: chip id = %x\n", snd_ac97_read(ac97, 0x5a));
+        ac97->build_ops = &patch_si3036_ops;
         snd_ac97_write_cache(ac97, 0x5c, 0xf210 );
         snd_ac97_write_cache(ac97, 0x68, 0);
         return 0;