[ALSA] emu10k1 - Fix inverted Analog/Digital mixer switch on Audigy2

On Audigy2 Platinum, the Analog/Digital mixer switch is inverted.
	https://bugzilla.novell.com/show_bug.cgi?id=396204

The patch adds a simple workaround.

There might be another device requiring a similar fix, too (or fix for
audigy2 generically), but right now I fix only the known broken one.

Signed-off-by: Takashi Iwai <tiwai@suse.de>

3 files changed, 12 insertions, 3 deletions

diff --git a/include/sound/emu10k1.h b/include/sound/emu10k1.h
index 7b7b9b13b4dd..10ee28eac018 100644
--- a/include/sound/emu10k1.h
+++ b/include/sound/emu10k1.h
@@ -1670,6 +1670,7 @@ struct snd_emu_chip_details {
         unsigned char spi_dac;      /* SPI interface for DAC */
         unsigned char i2c_adc;      /* I2C interface for ADC */
         unsigned char adc_1361t;    /* Use Philips 1361T ADC */
+        unsigned char invert_shared_spdif; /* analog/digital switch inverted */
         const char *driver;
         const char *name;
         const char *id;         /* for backward compatibility - can be NULL if not needed */
diff --git a/sound/pci/emu10k1/emu10k1_main.c b/sound/pci/emu10k1/emu10k1_main.c
index 548c9cc81af5..2f283ea6ad9a 100644
--- a/sound/pci/emu10k1/emu10k1_main.c
+++ b/sound/pci/emu10k1/emu10k1_main.c
@@ -1528,6 +1528,7 @@ static struct snd_emu_chip_details emu_chip_details[] = {
          .ca0151_chip = 1,
          .spk71 = 1,
          .spdif_bug = 1,
+         .invert_shared_spdif = 1,      /* digital/analog switch swapped */
          .adc_1361t = 1,  /* 24 bit capture instead of 16bit. Fixes ALSA bug#324 */
          .ac97_chip = 1} ,
         {.vendor = 0x1102, .device = 0x0004, .revision = 0x04,
diff --git a/sound/pci/emu10k1/emumixer.c b/sound/pci/emu10k1/emumixer.c
index fd221209abcb..f34bbfb705f5 100644
--- a/sound/pci/emu10k1/emumixer.c
+++ b/sound/pci/emu10k1/emumixer.c
@@ -1578,6 +1578,10 @@ static int snd_emu10k1_shared_spdif_get(struct snd_kcontrol *kcontrol,
                 ucontrol->value.integer.value[0] = inl(emu->port + A_IOCFG) & A_IOCFG_GPOUT0 ? 1 : 0;
         else
                 ucontrol->value.integer.value[0] = inl(emu->port + HCFG) & HCFG_GPOUT0 ? 1 : 0;
+        if (emu->card_capabilities->invert_shared_spdif)
+                ucontrol->value.integer.value[0] =
+                        !ucontrol->value.integer.value[0];
+                
         return 0;
 }
 
@@ -1586,15 +1590,18 @@ static int snd_emu10k1_shared_spdif_put(struct snd_kcontrol *kcontrol,
 {
         unsigned long flags;
         struct snd_emu10k1 *emu = snd_kcontrol_chip(kcontrol);
-        unsigned int reg, val;
+        unsigned int reg, val, sw;
         int change = 0;
 
+        sw = ucontrol->value.integer.value[0];
+        if (emu->card_capabilities->invert_shared_spdif)
+                sw = !sw;
         spin_lock_irqsave(&emu->reg_lock, flags);
         if ( emu->card_capabilities->i2c_adc) {
                 /* Do nothing for Audigy 2 ZS Notebook */
         } else if (emu->audigy) {
                 reg = inl(emu->port + A_IOCFG);
-                val = ucontrol->value.integer.value[0] ? A_IOCFG_GPOUT0 : 0;
+                val = sw ? A_IOCFG_GPOUT0 : 0;
                 change = (reg & A_IOCFG_GPOUT0) != val;
                 if (change) {
                         reg &= ~A_IOCFG_GPOUT0;
@@ -1603,7 +1610,7 @@ static int snd_emu10k1_shared_spdif_put(struct snd_kcontrol *kcontrol,
                 }
         }
         reg = inl(emu->port + HCFG);
-        val = ucontrol->value.integer.value[0] ? HCFG_GPOUT0 : 0;
+        val = sw ? HCFG_GPOUT0 : 0;
         change |= (reg & HCFG_GPOUT0) != val;
         if (change) {
                 reg &= ~HCFG_GPOUT0;