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authorMatt <matt@embeddedalley.com>2005-07-04 17:49:55 +0200
committerJaroslav Kysela <perex@suse.cz>2005-07-28 12:21:48 +0200
commit41e2fce431070cb2d91391808077378582d3e6b1 (patch)
tree4a26b2e7fc1b348cdef1fb56b0a1bd24639300f6 /sound
parentbbd4615cdb68de943b2814e956ec14899606dc45 (diff)
downloadblackbird-op-linux-41e2fce431070cb2d91391808077378582d3e6b1.tar.gz
blackbird-op-linux-41e2fce431070cb2d91391808077378582d3e6b1.zip
[ALSA] hda: enable unsolicited responses
HDA Intel driver Patch enables unsolicited responses on the HDA controller. Without the UREN bit set, the controller will not place unsolicited responses in a RIRB. Signed-off-by: Matt <matt@embeddedalley.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound')
-rw-r--r--sound/pci/hda/hda_intel.c6
1 files changed, 6 insertions, 0 deletions
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index 5e0cca36ed57..288ab0764830 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -178,6 +178,9 @@ enum { SDI0, SDI1, SDI2, SDI3, SDO0, SDO1, SDO2, SDO3 };
#define ICH6_INT_CTRL_EN 0x40000000 /* controller interrupt enable bit */
#define ICH6_INT_GLOBAL_EN 0x80000000 /* global interrupt enable bit */
+/* GCTL unsolicited response enable bit */
+#define ICH6_GCTL_UREN (1<<8)
+
/* GCTL reset bit */
#define ICH6_GCTL_RESET (1<<0)
@@ -562,6 +565,9 @@ static int azx_reset(azx_t *chip)
return -EBUSY;
}
+ /* Accept unsolicited responses */
+ azx_writel(chip, GCTL, azx_readl(chip, GCTL) | ICH6_GCTL_UREN);
+
/* detect codecs */
if (! chip->codec_mask) {
chip->codec_mask = azx_readw(chip, STATESTS);
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