ALSA: ca0106: Use card specific dac id for mute controls.

Signed-off-by: Andy Owen <andy-alsa@ultra-premium.com>
Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 69 insertions, 22 deletions

diff --git a/sound/pci/ca0106/ca0106_mixer.c b/sound/pci/ca0106/ca0106_mixer.c
index b522401b0318..630aa4998189 100644
--- a/sound/pci/ca0106/ca0106_mixer.c
+++ b/sound/pci/ca0106/ca0106_mixer.c
@@ -676,28 +676,65 @@ static struct snd_kcontrol_new snd_ca0106_volume_i2c_adc_ctls[] __devinitdata =
         I2C_VOLUME("Aux Capture Volume", 3),
 };
 
-#define SPI_SWITCH(xname,reg,bit) \
-{                                                               \
-        .iface  = SNDRV_CTL_ELEM_IFACE_MIXER, .name = xname,    \
-        .access = SNDRV_CTL_ELEM_ACCESS_READWRITE,              \
-        .info   = spi_mute_info,                                \
-        .get    = spi_mute_get,                                 \
-        .put    = spi_mute_put,                                 \
-        .private_value = (reg<<SPI_REG_SHIFT) | (bit)           \
-}
-
-static struct snd_kcontrol_new snd_ca0106_volume_spi_dac_ctls[]
-__devinitdata = {
-        SPI_SWITCH("Analog Front Playback Switch",
-                   SPI_DMUTE4_REG, SPI_DMUTE4_BIT),
-        SPI_SWITCH("Analog Rear Playback Switch",
-                   SPI_DMUTE0_REG, SPI_DMUTE0_BIT),
-        SPI_SWITCH("Analog Center/LFE Playback Switch",
-                   SPI_DMUTE2_REG, SPI_DMUTE2_BIT),
-        SPI_SWITCH("Analog Side Playback Switch",
-                   SPI_DMUTE1_REG, SPI_DMUTE1_BIT),
+static const int spi_dmute_reg[] = {
+        SPI_DMUTE0_REG,
+        SPI_DMUTE1_REG,
+        SPI_DMUTE2_REG,
+        0,
+        SPI_DMUTE4_REG,
+};
+static const int spi_dmute_bit[] = {
+        SPI_DMUTE0_BIT,
+        SPI_DMUTE1_BIT,
+        SPI_DMUTE2_BIT,
+        0,
+        SPI_DMUTE4_BIT,
 };
 
+static struct snd_kcontrol_new __devinit
+snd_ca0106_volume_spi_dac_ctl(struct snd_ca0106_details *details,
+                              int channel_id)
+{
+        struct snd_kcontrol_new spi_switch = {0};
+        int reg, bit;
+        int dac_id;
+
+        spi_switch.iface = SNDRV_CTL_ELEM_IFACE_MIXER;
+        spi_switch.access = SNDRV_CTL_ELEM_ACCESS_READWRITE;
+        spi_switch.info = spi_mute_info;
+        spi_switch.get = spi_mute_get;
+        spi_switch.put = spi_mute_put;
+
+        switch (channel_id) {
+        case PCM_FRONT_CHANNEL:
+                spi_switch.name = "Analog Front Playback Switch";
+                dac_id = (details->spi_dac & 0xf000) >> (4 * 3);
+                break;
+        case PCM_REAR_CHANNEL:
+                spi_switch.name = "Analog Rear Playback Switch";
+                dac_id = (details->spi_dac & 0x0f00) >> (4 * 2);
+                break;
+        case PCM_CENTER_LFE_CHANNEL:
+                spi_switch.name = "Analog Center/LFE Playback Switch";
+                dac_id = (details->spi_dac & 0x00f0) >> (4 * 1);
+                break;
+        case PCM_UNKNOWN_CHANNEL:
+                spi_switch.name = "Analog Side Playback Switch";
+                dac_id = (details->spi_dac & 0x000f) >> (4 * 0);
+                break;
+        default:
+                /* Unused channel */
+                spi_switch.name = NULL;
+                dac_id = 0;
+        }
+        reg = spi_dmute_reg[dac_id];
+        bit = spi_dmute_bit[dac_id];
+
+        spi_switch.private_value = (reg << SPI_REG_SHIFT) | bit;
+
+        return spi_switch;
+}
+
 static int __devinit remove_ctl(struct snd_card *card, const char *name)
 {
         struct snd_ctl_elem_id id;
@@ -832,8 +869,18 @@ int __devinit snd_ca0106_mixer(struct snd_ca0106 *emu)
                 if (err < 0)
                         return err;
         }
-        if (emu->details->spi_dac)
-                ADD_CTLS(emu, snd_ca0106_volume_spi_dac_ctls);
+        if (emu->details->spi_dac) {
+                int i;
+                for (i = 0;; i++) {
+                        struct snd_kcontrol_new ctl;
+                        ctl = snd_ca0106_volume_spi_dac_ctl(emu->details, i);
+                        if (!ctl.name)
+                                break;
+                        err = snd_ctl_add(card, snd_ctl_new1(&ctl, emu));
+                        if (err < 0)
+                                return err;
+                }
+        }
 
         /* Create virtual master controls */
         vmaster = snd_ctl_make_virtual_master("Master Playback Volume",