diff options
| -rw-r--r-- | sound/pci/hda/hda_intel.c | 56 |
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), |