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-rw-r--r--sound/pci/hda/hda_intel.c56
1 files changed, 36 insertions, 20 deletions
diff --git a/sound/pci/hda/hda_intel.c b/sound/pci/hda/hda_intel.c
index 25f35fa9706..5f2c3ca863d 100644
--- a/sound/pci/hda/hda_intel.c
+++ b/sound/pci/hda/hda_intel.c
@@ -1708,12 +1708,13 @@ static int __devinit azx_create(struct snd_card *card, struct pci_dev *pci,
{
struct azx *chip;
int err;
+ unsigned short gcap;
static struct snd_device_ops ops = {
.dev_free = azx_dev_free,
};
*rchip = NULL;
-
+
err = pci_enable_device(pci);
if (err < 0)
return err;
@@ -1775,25 +1776,40 @@ static int __devinit azx_create(struct snd_card *card, struct pci_dev *pci,
pci_set_master(pci);
synchronize_irq(chip->irq);
- switch (chip->driver_type) {
- case AZX_DRIVER_ULI:
- chip->playback_streams = ULI_NUM_PLAYBACK;
- chip->capture_streams = ULI_NUM_CAPTURE;
- chip->playback_index_offset = ULI_PLAYBACK_INDEX;
- chip->capture_index_offset = ULI_CAPTURE_INDEX;
- break;
- case AZX_DRIVER_ATIHDMI:
- chip->playback_streams = ATIHDMI_NUM_PLAYBACK;
- chip->capture_streams = ATIHDMI_NUM_CAPTURE;
- chip->playback_index_offset = ATIHDMI_PLAYBACK_INDEX;
- chip->capture_index_offset = ATIHDMI_CAPTURE_INDEX;
- break;
- default:
- chip->playback_streams = ICH6_NUM_PLAYBACK;
- chip->capture_streams = ICH6_NUM_CAPTURE;
- chip->playback_index_offset = ICH6_PLAYBACK_INDEX;
- chip->capture_index_offset = ICH6_CAPTURE_INDEX;
- break;
+ gcap = azx_readw(chip, GCAP);
+ snd_printdd("chipset global capabilities = 0x%x\n", gcap);
+
+ if (gcap) {
+ /* read number of streams from GCAP register instead of using
+ * hardcoded value
+ */
+ chip->playback_streams = (gcap & (0xF << 12)) >> 12;
+ chip->capture_streams = (gcap & (0xF << 8)) >> 8;
+ chip->playback_index_offset = (gcap & (0xF << 12)) >> 12;
+ chip->capture_index_offset = 0;
+ } else {
+ /* gcap didn't give any info, switching to old method */
+
+ switch (chip->driver_type) {
+ case AZX_DRIVER_ULI:
+ chip->playback_streams = ULI_NUM_PLAYBACK;
+ chip->capture_streams = ULI_NUM_CAPTURE;
+ chip->playback_index_offset = ULI_PLAYBACK_INDEX;
+ chip->capture_index_offset = ULI_CAPTURE_INDEX;
+ break;
+ case AZX_DRIVER_ATIHDMI:
+ chip->playback_streams = ATIHDMI_NUM_PLAYBACK;
+ chip->capture_streams = ATIHDMI_NUM_CAPTURE;
+ chip->playback_index_offset = ATIHDMI_PLAYBACK_INDEX;
+ chip->capture_index_offset = ATIHDMI_CAPTURE_INDEX;
+ break;
+ default:
+ chip->playback_streams = ICH6_NUM_PLAYBACK;
+ chip->capture_streams = ICH6_NUM_CAPTURE;
+ chip->playback_index_offset = ICH6_PLAYBACK_INDEX;
+ chip->capture_index_offset = ICH6_CAPTURE_INDEX;
+ break;
+ }
}
chip->num_streams = chip->playback_streams + chip->capture_streams;
chip->azx_dev = kcalloc(chip->num_streams, sizeof(*chip->azx_dev),