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ALSA: hda - Fix bdl_pos_adj value for ATI SB chipsets

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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>
This commit is contained in:
Takashi Iwai 2008-06-10 17:53:35 +02:00 committed by Jaroslav Kysela
parent 555e219ffa
commit 5c0d7bc103
1 changed files with 13 additions and 1 deletions
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14
sound/pci/hda/hda_intel.c
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@ -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) {