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2013-06-09firewire: introduce fw_driver.probe and .remove methodsStefan Richter
FireWire upper layer drivers are converted from generic struct driver.probe() and .remove() to bus-specific struct fw_driver.probe() and .remove(). The new .probe() adds a const struct ieee1394_device_id *id argument, indicating the entry in the driver's device identifiers table which matched the fw_unit to be probed. This new argument is used by the snd-firewire-speakers driver to look up device-specific parameters and methods. There is at least one other FireWire audio driver currently in development in which this will be useful too. The new .remove() drops the unused error return code. Although all in-tree drivers are being converted to the new methods, support for the old methods is left in place in this commit. This allows public developer trees to merge this commit and then move to the new fw_driver methods. Signed-off-by: Stefan Richter <stefanr@s5r6.in-berlin.de> Acked-by: Clemens Ladisch <clemens@ladisch.de> (for sound/firewire/) Cc: Peter Hurley <peter@hurleysoftware.com> (for drivers/staging/fwserial/)
2012-12-07ALSA: firewire-speakers: remove __dev* attributesBill Pemberton
CONFIG_HOTPLUG is going away as an option. As result the __dev* markings will be going away. Remove use of __devinit, __devexit_p, __devinitdata, __devinitconst, and __devexit. Signed-off-by: Bill Pemberton <wfp5p@virginia.edu> Acked-by: Clemens Ladisch <clemens@ladisch.de> Signed-off-by: Takashi Iwai <tiwai@suse.de>
2012-03-22Merge tag 'firewire-updates' of ↵Linus Torvalds
git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394 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 ...
2012-01-15firewire: move fw_device reference counting from drivers to coreStefan Richter
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 <stefanr@s5r6.in-berlin.de>
2011-10-04ALSA: firewire-speakers: fix lockingStefan Richter
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>
2011-06-17ALSA: firewire-speakers, oxygen, ua101: allow > 10 s periodsClemens Ladisch
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>
2011-03-30ALSA: firewire-speakers: fix hang when unplugging a running deviceClemens Ladisch
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>
2011-03-15ALSA: firewire-lib, firewire-speakers: handle packet queueing errorsClemens Ladisch
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>
2011-03-15ALSA: add LaCie FireWire Speakers/Griffin FireWave Surround driverClemens Ladisch
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>