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* ALSA: firewire-speakers: fix lockingStefan Richter2011-10-041-2/+3
| | | | | | | | | | | | | There is a lock inversion between fwspk->mutex and pcm->open_mutex reported by lockdep when fwspk_hw_free is called. Fixed by copying the fix from the same former issue in the isight sound driver (commit f3f7c1837f6bcae3601fc535b339426868bf1549 "ALSA: isight: fix locking"). Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* ALSA: firewire-speakers, oxygen, ua101: allow > 10 s periodsClemens Ladisch2011-06-171-1/+1
| | | | | | | | | Since commit f2b3614cefb6 (Don't check DMA time-out too shortly), drivers need no longer restrict their PCM period length to be shorter than 10 seconds. Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* ALSA: firewire-speakers: fix hang when unplugging a running deviceClemens Ladisch2011-03-301-2/+1
| | | | | | | | | | | | When aborting a PCM stream, the xrun is signaled only if the stream is running. When disconnecting a PCM stream, calling snd_card_disconnect() too early would change the stream into a non-running state and thus prevent the xrun from being noticed by user space. To prevent this, move the snd_card_disconnect() call after the xrun. Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* ALSA: firewire-lib, firewire-speakers: handle packet queueing errorsClemens Ladisch2011-03-151-0/+3
| | | | | | | | | Add an AMDTP stream error state that occurs when we fail to queue another packet. In this case, the stream is stopped, and the error can be reported when the application tries to restart the PCM stream. Signed-off-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
* ALSA: add LaCie FireWire Speakers/Griffin FireWave Surround driverClemens Ladisch2011-03-151-0/+855
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 <clemens@ladisch.de> Acked-by: Stefan Richter <stefanr@s5r6.in-berlin.de> Tested-by: Jay Fenlason <fenlason@redhat.com> Signed-off-by: Takashi Iwai <tiwai@suse.de>