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authorClemens Ladisch <clemens@ladisch.de>2007-08-27 09:20:31 +0200
committerJaroslav Kysela <perex@perex.cz>2007-10-16 15:59:28 +0200
commit133271fef52c06de52ea9a8ee27899f18dae9af2 (patch)
tree1a9b94c6a90bcaa33b1ab7b953f504d7a5abb1aa /sound
parentc9116ae45bd10eabe1e5cf88798092e184d8dbc2 (diff)
[ALSA] cmipci: reorganize chip version detection
Add a case for chip version 39 where no bit is set in register 0Ch, and move the detection of version 39 before that of 8768. This makes the logic more compatible with the driver on that other OS. Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Jaroslav Kysela <perex@suse.cz>
Diffstat (limited to 'sound')
-rw-r--r--sound/pci/cmipci.c44
1 files changed, 20 insertions, 24 deletions
diff --git a/sound/pci/cmipci.c b/sound/pci/cmipci.c
index 6021e5c402e..cc0977a8a3d 100644
--- a/sound/pci/cmipci.c
+++ b/sound/pci/cmipci.c
@@ -2625,46 +2625,42 @@ static void __devinit query_chip(struct cmipci *cm)
if (! detect) {
/* check reg 08h, bit 24-28 */
detect = snd_cmipci_read(cm, CM_REG_CHFORMAT) & CM_CHIP_MASK1;
- if (! detect) {
+ switch (detect) {
+ case 0:
cm->chip_version = 33;
- cm->max_channels = 2;
if (cm->do_soft_ac3)
cm->can_ac3_sw = 1;
else
cm->can_ac3_hw = 1;
- cm->has_dual_dac = 1;
- } else {
+ break;
+ case 1:
cm->chip_version = 37;
- cm->max_channels = 2;
cm->can_ac3_hw = 1;
- cm->has_dual_dac = 1;
+ break;
+ default:
+ cm->chip_version = 39;
+ cm->can_ac3_hw = 1;
+ break;
}
+ cm->max_channels = 2;
+ cm->has_dual_dac = 1;
} else {
- /* check reg 0Ch, bit 26 */
- if (detect & CM_CHIP_8768) {
- cm->chip_version = 68;
- cm->max_channels = 8;
- cm->can_ac3_hw = 1;
- cm->has_dual_dac = 1;
- cm->can_multi_ch = 1;
- } else if (detect & CM_CHIP_055) {
- cm->chip_version = 55;
- cm->max_channels = 6;
- cm->can_ac3_hw = 1;
- cm->has_dual_dac = 1;
- cm->can_multi_ch = 1;
- } else if (detect & CM_CHIP_039) {
+ if (detect & CM_CHIP_039) {
cm->chip_version = 39;
if (detect & CM_CHIP_039_6CH) /* 4 or 6 channels */
cm->max_channels = 6;
else
cm->max_channels = 4;
- cm->can_ac3_hw = 1;
- cm->has_dual_dac = 1;
- cm->can_multi_ch = 1;
+ } else if (detect & CM_CHIP_8768) {
+ cm->chip_version = 68;
+ cm->max_channels = 8;
} else {
- printk(KERN_ERR "chip %x version not supported\n", detect);
+ cm->chip_version = 55;
+ cm->max_channels = 6;
}
+ cm->can_ac3_hw = 1;
+ cm->has_dual_dac = 1;
+ cm->can_multi_ch = 1;
}
}