ALSA: hda - Add some workarounds for Creative IBG
Creative HD-audio controller chips require some workarounds:
- Additional delay before RIRB response
- Set the initial RIRB counter to 0xc0
The latter seems to be done in general in Windows driver, so we may
use this value later for all types if it's confirmed to work better.
Reported-by: Wai Yew CHAY <wychay@ctl.creative.com>
Cc: <stable@kernel.org>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index 5cbea85..ee445bc 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -458,6 +458,7 @@
AZX_DRIVER_ULI,
AZX_DRIVER_NVIDIA,
AZX_DRIVER_TERA,
+ AZX_DRIVER_CTX,
AZX_DRIVER_GENERIC,
AZX_NUM_DRIVERS, /* keep this as last entry */
};
@@ -473,6 +474,7 @@
[AZX_DRIVER_ULI] = "HDA ULI M5461",
[AZX_DRIVER_NVIDIA] = "HDA NVidia",
[AZX_DRIVER_TERA] = "HDA Teradici",
+ [AZX_DRIVER_CTX] = "HDA Creative",
[AZX_DRIVER_GENERIC] = "HD-Audio Generic",
};
@@ -563,7 +565,10 @@
/* reset the rirb hw write pointer */
azx_writew(chip, RIRBWP, ICH6_RIRBWP_RST);
/* set N=1, get RIRB response interrupt for new entry */
- azx_writew(chip, RINTCNT, 1);
+ if (chip->driver_type == AZX_DRIVER_CTX)
+ azx_writew(chip, RINTCNT, 0xc0);
+ else
+ azx_writew(chip, RINTCNT, 1);
/* enable rirb dma and response irq */
azx_writeb(chip, RIRBCTL, ICH6_RBCTL_DMA_EN | ICH6_RBCTL_IRQ_EN);
spin_unlock_irq(&chip->reg_lock);
@@ -1136,8 +1141,11 @@
/* clear rirb int */
status = azx_readb(chip, RIRBSTS);
if (status & RIRB_INT_MASK) {
- if (status & RIRB_INT_RESPONSE)
+ if (status & RIRB_INT_RESPONSE) {
+ if (chip->driver_type == AZX_DRIVER_CTX)
+ udelay(80);
azx_update_rirb(chip);
+ }
azx_writeb(chip, RIRBSTS, RIRB_INT_MASK);
}
@@ -2784,10 +2792,10 @@
{ PCI_DEVICE(PCI_VENDOR_ID_CREATIVE, PCI_ANY_ID),
.class = PCI_CLASS_MULTIMEDIA_HD_AUDIO << 8,
.class_mask = 0xffffff,
- .driver_data = AZX_DRIVER_GENERIC },
+ .driver_data = AZX_DRIVER_CTX },
#else
/* this entry seems still valid -- i.e. without emu20kx chip */
- { PCI_DEVICE(0x1102, 0x0009), .driver_data = AZX_DRIVER_GENERIC },
+ { PCI_DEVICE(0x1102, 0x0009), .driver_data = AZX_DRIVER_CTX },
#endif
/* Vortex86MX */
{ PCI_DEVICE(0x17f3, 0x3010), .driver_data = AZX_DRIVER_GENERIC },