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[ALSA] hda-intel - Clean up stream definitions 

Clean up the code to define playback/capture streams.

Signed-off-by: Takashi Iwai <tiwai@suse.de>
This commit is contained in:
Takashi Iwai 2008-02-19 11:36:35 +01:00
parent 49c88b85b5
commit 8b6ed8e70d
1 changed files with 8 additions and 21 deletions
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29
sound/pci/hda/hda_intel.c
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@ -185,21 +185,15 @@ enum { SDI0, SDI1, SDI2, SDI3, SDO0, SDO1, SDO2, SDO3 };
/* max number of SDs */
/* ICH, ATI and VIA have 4 playback and 4 capture */
#define ICH6_CAPTURE_INDEX 0
#define ICH6_NUM_CAPTURE 4
#define ICH6_PLAYBACK_INDEX 4
#define ICH6_NUM_PLAYBACK 4
/* ULI has 6 playback and 5 capture */
#define ULI_CAPTURE_INDEX 0
#define ULI_NUM_CAPTURE 5
#define ULI_PLAYBACK_INDEX 5
#define ULI_NUM_PLAYBACK 6
/* ATI HDMI has 1 playback and 0 capture */
#define ATIHDMI_CAPTURE_INDEX 0
#define ATIHDMI_NUM_CAPTURE 0
#define ATIHDMI_PLAYBACK_INDEX 0
#define ATIHDMI_NUM_PLAYBACK 1
/* this number is statically defined for simplicity */
@ -1846,38 +1840,31 @@ static int __devinit azx_create(struct snd_card *card, struct pci_dev *pci,
if ((gcap & 0x01) && !pci_set_dma_mask(pci, DMA_64BIT_MASK))
pci_set_consistent_dma_mask(pci, DMA_64BIT_MASK);
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 = chip->capture_streams;
chip->capture_index_offset = 0;
} else {
/* read number of streams from GCAP register instead of using
* hardcoded value
*/
chip->capture_streams = (gcap >> 8) & 0x0f;
chip->playback_streams = (gcap >> 12) & 0x0f;
if (!chip->playback_streams && !chip->capture_streams) {
/* 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->capture_index_offset = 0;
chip->playback_index_offset = chip->capture_streams;
chip->num_streams = chip->playback_streams + chip->capture_streams;
chip->azx_dev = kcalloc(chip->num_streams, sizeof(*chip->azx_dev),
GFP_KERNEL);