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| author |   Eliot Blennerhassett <eliot@blennerhassett.gen.nz> | 2014-11-20 16:22:53 +1300 |
|---|---|---|
| committer |   Takashi Iwai <tiwai@suse.de> | 2014-11-22 22:33:13 +0100 |
| commit | f9a376c3f6d77e59d41350901b2bafbaf8791df0 (patch) | |
| tree | b97b1b78966dba5ac3194558d779ca1840f10304 /sound/pci/asihpi/hpios.h | |
| parent | ALSA: asihpi: Refactor control cache code. (diff) | |
| download | wireguard-linux-f9a376c3f6d77e59d41350901b2bafbaf8791df0.tar.xz wireguard-linux-f9a376c3f6d77e59d41350901b2bafbaf8791df0.zip | |
ALSA: asihpi: Add support for stream interrupt.
Some cards have a so-called low-latency mode, in which they present
a single multichannel stream with no mixing or samplerate conversion.
In this mode the card can generate an interrupt per internal processing
block (typically 32 or 64 frames)
Signed-off-by: Eliot Blennerhassett <eliot@blennerhassett.gen.nz>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'sound/pci/asihpi/hpios.h')
| -rw-r--r-- | sound/pci/asihpi/hpios.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/sound/pci/asihpi/hpios.h b/sound/pci/asihpi/hpios.h index d17d017940d8..4e383601b9cf 100644 --- a/sound/pci/asihpi/hpios.h +++ b/sound/pci/asihpi/hpios.h @@ -151,6 +151,10 @@ struct hpi_adapter { struct hpi_adapter_obj *adapter; struct snd_card *snd_card; + int irq; + int interrupt_mode; + void (*interrupt_callback) (struct hpi_adapter *); + /* mutex prevents contention for one card between multiple user programs (via ioctl) */ struct mutex mutex; |