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authorTakashi Iwai <tiwai@suse.de>2008-06-10 17:53:35 +0200
committerJaroslav Kysela <perex@perex.cz>2008-06-13 16:34:25 +0200
commit5c0d7bc103dd1ae85967fbcf70be8d1ae3aa3d79 (patch)
treed7c3ee90cd64da05b802924ab32f16999909083b /sound
parent555e219ffaeecbd08d1603e1551188483e7e3b64 (diff)
ALSA: hda - Fix bdl_pos_adj value for ATI SB chipsets
ATI SB controllers seem to report the DMA ahead in the amount of FIFO. Thus bdl_pos_adj should be 32 for them as default. Also, the default value is set to -1, which means to make the driver to choose the appropriate value. Signed-off-by: Takashi Iwai <tiwai@suse.de> Signed-off-by: Jaroslav Kysela <perex@perex.cz>
Diffstat (limited to 'sound')
-rw-r--r--sound/pci/hda/hda_intel.c14
1 files changed, 13 insertions, 1 deletions
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index ddae3c479a8..9b2dc0669b9 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -55,7 +55,7 @@ static char *id[SNDRV_CARDS] = SNDRV_DEFAULT_STR;
static int enable[SNDRV_CARDS] = SNDRV_DEFAULT_ENABLE_PNP;
static char *model[SNDRV_CARDS];
static int position_fix[SNDRV_CARDS];
-static int bdl_pos_adj[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = 1};
+static int bdl_pos_adj[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = -1};
static int probe_mask[SNDRV_CARDS] = {[0 ... (SNDRV_CARDS-1)] = -1};
static int single_cmd;
static int enable_msi;
@@ -2013,6 +2013,18 @@ static int __devinit azx_create(struct snd_card *card, struct pci_dev *pci,
chip->single_cmd = single_cmd;
+ if (bdl_pos_adj[dev] < 0) {
+ switch (chip->driver_type) {
+ case AZX_DRIVER_ATI:
+ case AZX_DRIVER_ATIHDMI:
+ bdl_pos_adj[dev] = 32;
+ break;
+ default:
+ bdl_pos_adj[dev] = 1;
+ break;
+ }
+ }
+
#if BITS_PER_LONG != 64
/* Fix up base address on ULI M5461 */
if (chip->driver_type == AZX_DRIVER_ULI) {