kernel.git/sound/firewire/isight.c, branch linux-3.7.y

Merge tag 'firewire-updates' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394

2012-03-23T03:31:15Z

Pull IEEE 1394 (FireWire) subsystem updates post v3.3 from Stefan Richter: - Some SBP-2 initiator fixes, side product from ongoing work on a target. - Reintroduction of an isochronous I/O feature of the older ieee1394 driver stack (flush buffer completions); it was evidently rarely used but not actually unused. Matching libraw1394 code is already available. - Be sure to prefix all kernel log messages with device name or card name, and other logging related cleanups. - Misc other small cleanups, among them a small API change that affects sound/firewire/ too. Clemens Ladisch is aware of it. * tag 'firewire-updates' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394: (26 commits) firewire: allow explicit flushing of iso packet completions firewire: prevent dropping of completed iso packet header data firewire: ohci: factor out iso completion flushing code firewire: ohci: simplify iso header pointer arithmetic firewire: ohci: optimize control bit checks firewire: ohci: remove unused excess_bytes field firewire: ohci: copy_iso_headers(): make comment match the code firewire: cdev: fix IR multichannel event documentation firewire: ohci: fix too-early completion of IR multichannel buffers firewire: ohci: move runtime debug facility out of #ifdef firewire: tone down some diagnostic log messages firewire: sbp2: replace a GFP_ATOMIC allocation firewire: sbp2: Fix SCSI sense data mangling firewire: sbp2: Ignore SBP-2 targets on the local node firewire: sbp2: Take into account Unit_Unique_ID firewire: nosy: Use the macro DMA_BIT_MASK(). firewire: core: convert AR-req handler lock from _irqsave to _bh firewire: core: fix race at address_handler unregistration firewire: core: remove obsolete comment firewire: core: prefix log messages with card name ...

firewire: move fw_device reference counting from drivers to core

2012-01-15T17:37:20Z

fw_unit device drivers invariably need to talk to the fw_unit's parent (an fw_device) and grandparent (an fw_card). firewire-core already maintains an fw_card reference for the entire lifetime of an fw_device. Likewise, let firewire-core maintain an fw_device reference for the entire lifetime of an fw_unit so that fw_unit drivers don't have to. Signed-off-by: Stefan Richter

ALSA: isight: remove superfluous field

2011-08-15T11:35:13Z

Remove a field that is not used at all. This remained from earlier tests, but the current driver has decided not to handle iris notifications. Signed-off-by: Clemens Ladisch Signed-off-by: Takashi Iwai

ALSA: isight: adjust for new queueing API

2011-06-17T09:37:29Z

Since commit 13882a82ee16 (optimize iso queueing by setting wake only after the last packet), drivers are required to call fw_iso_context_queue_flush() after queueing a batch of packets. The missing call would have an effect only if the controller queue underruns, but then the DMA would stop completely. Signed-off-by: Clemens Ladisch Signed-off-by: Takashi Iwai

ALSA: isight: fix locking

2011-05-11T12:53:09Z

Lockdep complains about conflicts between isight->mutex, ALSA's register_mutex, mm->mmap_sem, and pcm->open_mutex. This can be fixed by moving the calls to isight_pcm_abort(), snd_card_disconnect(), and fw_iso_resources_update() out of isight->mutex. These functions are designed to be called asynchronously; the mutex needs to protect only the device streaming state modified by isight_start/stop_streaming(). Signed-off-by: Clemens Ladisch Reported-by: Stefan Richter Signed-off-by: Takashi Iwai

ALSA: isight: fix hang when unplugging a running device

2011-05-11T12:53:08Z

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 Signed-off-by: Takashi Iwai

ALSA: isight: wrap up register accesses

2011-05-11T12:52:54Z

Signed-off-by: Stefan Richter [cl: removed superfluous variable] Signed-off-by: Clemens Ladisch Signed-off-by: Takashi Iwai

ALSA: isight: add AudioEnable register write

2011-05-11T12:51:20Z

which is needed to get the iSight to talk. Signed-off-by: Stefan Richter Signed-off-by: Clemens Ladisch Signed-off-by: Takashi Iwai

ALSA: isight: fix divide error when queueing packets

2011-05-11T12:51:16Z

Set the .header_size field when queueing packets to avoid a division by zero. Signed-off-by: Clemens Ladisch Signed-off-by: Takashi Iwai

ALSA: isight: fix packet requeueing

2011-05-11T12:51:13Z

After handling a received packet, we want to resubmit the same packet, so do not increase the packet index too early. Signed-off-by: Clemens Ladisch Signed-off-by: Takashi Iwai