ALSA: snd-powermac: mixers for PowerMac G4 AGP

Add mixer controls for PowerMac G4 AGP (Screamer).

This patch fixes the regression in the recent snd-powermac which
doesn't support some G3/G4 PowerMacs:
    http://lkml.org/lkml/2008/10/1/220

Signed-off-by: Risto Suominen <Risto.Suominen@gmail.com>
Tested-by: Mariusz Kozlowski <m.kozlowski@tuxland.pl>
Cc: stable@kernel.org
Signed-off-by: Takashi Iwai <tiwai@suse.de>

1 files changed, 16 insertions, 3 deletions

diff --git a/sound/ppc/awacs.c b/sound/ppc/awacs.c
index 566a6d0daf4a..543d4f1784a5 100644
--- a/sound/ppc/awacs.c
+++ b/sound/ppc/awacs.c
@@ -621,6 +621,13 @@ static struct snd_kcontrol_new snd_pmac_screamer_mixers_imac[] __initdata = {
         AWACS_SWITCH("CD Capture Switch", 0, SHIFT_MUX_CD, 0),
 };
 
+static struct snd_kcontrol_new snd_pmac_screamer_mixers_g4agp[] __initdata = {
+        AWACS_VOLUME("Line out Playback Volume", 2, 6, 1),
+        AWACS_VOLUME("Master Playback Volume", 5, 6, 1),
+        AWACS_SWITCH("CD Capture Switch", 0, SHIFT_MUX_CD, 0),
+        AWACS_SWITCH("Line Capture Switch", 0, SHIFT_MUX_MIC, 0),
+};
+
 static struct snd_kcontrol_new snd_pmac_awacs_mixers_pmac7500[] __initdata = {
         AWACS_VOLUME("Line out Playback Volume", 2, 6, 1),
         AWACS_SWITCH("CD Capture Switch", 0, SHIFT_MUX_CD, 0),
@@ -768,6 +775,7 @@ static void snd_pmac_awacs_resume(struct snd_pmac *chip)
 #define IS_IMAC (machine_is_compatible("PowerMac2,1") \
                 || machine_is_compatible("PowerMac2,2") \
                 || machine_is_compatible("PowerMac4,1"))
+#define IS_G4AGP (machine_is_compatible("PowerMac3,1"))
 
 static int imac;
 
@@ -850,6 +858,7 @@ snd_pmac_awacs_init(struct snd_pmac *chip)
 {
         int pm7500 = IS_PM7500;
         int beige = IS_BEIGE;
+        int g4agp = IS_G4AGP;
         int err, vol;
 
         imac = IS_IMAC;
@@ -939,7 +948,7 @@ snd_pmac_awacs_init(struct snd_pmac *chip)
                                 snd_pmac_awacs_mixers);
         if (err < 0)
                 return err;
-        if (beige)
+        if (beige || g4agp)
                 ;
         else if (chip->model == PMAC_SCREAMER)
                 err = build_mixers(chip, ARRAY_SIZE(snd_pmac_screamer_mixers2),
@@ -961,13 +970,17 @@ snd_pmac_awacs_init(struct snd_pmac *chip)
                 err = build_mixers(chip,
                                    ARRAY_SIZE(snd_pmac_screamer_mixers_imac),
                                    snd_pmac_screamer_mixers_imac);
+        else if (g4agp)
+                err = build_mixers(chip,
+                                   ARRAY_SIZE(snd_pmac_screamer_mixers_g4agp),
+                                   snd_pmac_screamer_mixers_g4agp);
         else
                 err = build_mixers(chip,
                                    ARRAY_SIZE(snd_pmac_awacs_mixers_pmac),
                                    snd_pmac_awacs_mixers_pmac);
         if (err < 0)
                 return err;
-        chip->master_sw_ctl = snd_ctl_new1((pm7500 || imac)
+        chip->master_sw_ctl = snd_ctl_new1((pm7500 || imac || g4agp)
                         ? &snd_pmac_awacs_master_sw_imac
                         : &snd_pmac_awacs_master_sw, chip);
         err = snd_ctl_add(chip->card, chip->master_sw_ctl);
@@ -1012,7 +1025,7 @@ snd_pmac_awacs_init(struct snd_pmac *chip)
                         return err;
         }
 
-        if (beige)
+        if (beige || g4agp)
                 err = build_mixers(chip,
                                 ARRAY_SIZE(snd_pmac_screamer_mic_boost_beige),
                                 snd_pmac_screamer_mic_boost_beige);