ALSA CVS update

D:2003/08/27 17:12:03
C:Documentation,VIA82xx driver
A:Takashi Iwai <tiwai@suse.de>
F:Documentation/ALSA-Configuration.txt:1.15->1.16 
F:pci/via82xx.c:1.46->1.47 
L:- use dxs_support=3 (48k fixed) as default, since there are so many problems
L:  with dxs_support=0.
L:- added kernel boot parameter for dxs_support option.

Documentation/sound/alsa/ALSA-Configuration.txt

@@ -992,8 +992,8 @@ Module parameters
 		  [VIA686A/686B only]
     ac97_clock	- AC'97 codec clock base (default 48000Hz)
     dxs_support	- support DXS channels,
-		  0 = auto (default), 1 = enable, 2 = disable,
-		  3 = 48k only
+		  0 = auto, 1 = enable, 2 = disable,
+		  3 = 48k only (default)
 		  [VIA8233/C,8235 only]
 
     Module supports autoprobe and multiple bus-master chips (max 8).
@@ -1007,11 +1007,9 @@ Module parameters
     Note: VIA8233/5 (not VIA8233A) can support DXS (direct sound)
 	  channels as the first PCM.  With this device, up to 4
 	  streams can be played at the same time.  On some motherboards,
-	  these channels don't work properly due to the bug of BIOS.
-	  If you experience that the playback on this PCM is noisy,
-	  try to specify dxs_support option to 2 or 3.  In most cases
-	  dxs_support=3 would suffice, so you can keep the multi-play
-	  capability.
+	  these channels don't work properly except for 48k due to the
+	  bug of BIOS.  For supporting other sample rates, try to
+	  specify dxs_support=0.
 
     Note: for the MPU401 on VIA823x, use snd-mpu401 driver
 	  additonally.  The mpu_port option is for VIA686 chips only.

sound/pci/via82xx.c

@@ -74,7 +74,7 @@ static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;	/* ID for this card */
 static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;	/* Enable this card */
 static long mpu_port[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = -1};
 static int ac97_clock[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 48000};
-static int dxs_support[SNDRV_CARDS];
+static int dxs_support[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS - 1)] = 3};
 
 MODULE_PARM(index, "1-" __MODULE_STRING(SNDRV_CARDS) "i");
 MODULE_PARM_DESC(index, "Index value for VIA 82xx bridge.");
@@ -2083,7 +2083,7 @@ module_exit(alsa_card_via82xx_exit)
 #ifndef MODULE
 
 /* format is: snd-via82xx=enable,index,id,
-			  mpu_port,ac97_clock */
+			  mpu_port,ac97_clock,dxs_support */
 
 static int __init alsa_card_via82xx_setup(char *str)
 {
@@ -2095,7 +2095,8 @@ static int __init alsa_card_via82xx_setup(char *str)
 	       get_option(&str,&index[nr_dev]) == 2 &&
 	       get_id(&str,&id[nr_dev]) == 2 &&
 	       get_option(&str,(int *)&mpu_port[nr_dev]) == 2 &&
-	       get_option(&str,&ac97_clock[nr_dev]) == 2);
+	       get_option(&str,&ac97_clock[nr_dev]) == 2 &&
+	       get_option(&str,&dxs_support[nr_dev]) == 2);
 	nr_dev++;
 	return 1;
 }