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authorTakashi Iwai <tiwai@suse.de>2012-02-28 11:58:40 +0100
committerTakashi Iwai <tiwai@suse.de>2012-02-28 12:18:15 +0100
commita6f2fd557f993aecc93d51afd9e339524107937f (patch)
tree052ca4166b132a4228d3f6694aba24235660b4b1 /sound/pci/hda/hda_intel.c
parent5556e147083fb4d473d5c1a82f73205b8b145cd9 (diff)
downloadop-kernel-dev-a6f2fd557f993aecc93d51afd9e339524107937f.zip
op-kernel-dev-a6f2fd557f993aecc93d51afd9e339524107937f.tar.gz
ALSA: hda - Add position_fix=4 (COMBO) option
This patch adds a new position_fix option value, 4, as a combo mode to use LPIB for playbacks and POSBUF for captures. It's the way recommended by Intel hardware guys. Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci/hda/hda_intel.c')
-rw-r--r--sound/pci/hda/hda_intel.c10
1 files changed, 9 insertions, 1 deletions
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index e354c16..6e958bf 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -84,7 +84,7 @@ module_param_array(model, charp, NULL, 0444);
MODULE_PARM_DESC(model, "Use the given board model.");
module_param_array(position_fix, int, NULL, 0444);
MODULE_PARM_DESC(position_fix, "DMA pointer read method."
- "(0 = auto, 1 = LPIB, 2 = POSBUF, 3 = VIACOMBO).");
+ "(0 = auto, 1 = LPIB, 2 = POSBUF, 3 = VIACOMBO, 4 = COMBO).");
module_param_array(bdl_pos_adj, int, NULL, 0644);
MODULE_PARM_DESC(bdl_pos_adj, "BDL position adjustment offset.");
module_param_array(probe_mask, int, NULL, 0444);
@@ -330,6 +330,7 @@ enum {
POS_FIX_LPIB,
POS_FIX_POSBUF,
POS_FIX_VIACOMBO,
+ POS_FIX_COMBO,
};
/* Defines for ATI HD Audio support in SB450 south bridge */
@@ -2520,6 +2521,7 @@ static int __devinit check_position_fix(struct azx *chip, int fix)
case POS_FIX_LPIB:
case POS_FIX_POSBUF:
case POS_FIX_VIACOMBO:
+ case POS_FIX_COMBO:
return fix;
}
@@ -2699,6 +2701,12 @@ static int __devinit azx_create(struct snd_card *card, struct pci_dev *pci,
chip->position_fix[0] = chip->position_fix[1] =
check_position_fix(chip, position_fix[dev]);
+ /* combo mode uses LPIB for playback */
+ if (chip->position_fix[0] == POS_FIX_COMBO) {
+ chip->position_fix[0] = POS_FIX_LPIB;
+ chip->position_fix[1] = POS_FIX_AUTO;
+ }
+
check_probe_mask(chip, dev);
chip->single_cmd = single_cmd;
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