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ALSA: add LaCie FireWire Speakers/Griffin FireWave Surround driver

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Add a driver for two playback-only FireWire devices based on the OXFW970
chip.

v2: better AMDTP API abstraction; fix fw_unit leak; small fixes
v3: cache the iPCR value
v4: FireWave constraints; fix fw_device reference counting;
    fix PCR caching; small changes and fixes
v5: volume/mute support; fix crashing due to pcm stop races
v6: fix build; one-channel volume for LaCie
v7: use signed values to make volume (range checks) work; fix function
    block IDs for volume/mute; always use channel 0 for LaCie volume

Signed-off-by: Clemens Ladisch <[email protected]>
Acked-by: Stefan Richter <[email protected]>
Tested-by: Jay Fenlason <[email protected]>
Signed-off-by: Takashi Iwai <[email protected]>
This commit is contained in:
Clemens Ladisch 2011-03-15 07:53:21 +01:00 • committed by Takashi Iwai
commit 31ef9134eb
20 changed files with 2651 additions and 4 deletions
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2
sound/Makefile
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@ -6,7 +6,7 @@ obj-$(CONFIG_SOUND_PRIME) += sound_firmware.o
obj-$(CONFIG_SOUND_PRIME) += oss/
obj-$(CONFIG_DMASOUND) += oss/
obj-$(CONFIG_SND) += core/ i2c/ drivers/ isa/ pci/ ppc/ arm/ sh/ synth/ usb/ \
sparc/ spi/ parisc/ pcmcia/ mips/ soc/ atmel/
firewire/ sparc/ spi/ parisc/ pcmcia/ mips/ soc/ atmel/
obj-$(CONFIG_SND_AOA) += aoa/
# This one must be compilable even if sound is configured out