184 lines
7.3 KiB
Plaintext
184 lines
7.3 KiB
Plaintext
libraw1394 Release Notes
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Version 2.1.0:
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- Behavior changes of the backend to firewire-core:
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- The isochronous reception buffer is now mapped read/writable
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rather than read-only. The raw1394 backend already maps the
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buffer read/writable too. Note that writing into the buffer
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will go wrong on architectures without cache-coherent DMA if
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the CPU and the OHCI write within the same cacheline region,
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so use this feature with caution.
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- Decrease memory footprint of IR and IT buffers by avoiding
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some internal rounding up of the buffer size.
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- New APIs in <libraw1394/raw1394.h>:
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- raw1394_add_config_rom_descriptor():
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Add contents to the Configuration ROM of the local node(s).
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At runtime, this API is only available if running on top of
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firewire-core. It could probably also be implemented with
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the raw1394 kernel driver if anybody cared.
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- raw1394_remove_config_rom_descriptor():
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Counterpart to raw1394_add_config_rom_descriptor().
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- raw1394_read_cycle_timer_and_clock():
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Like the existing raw1394_read_cycle_timer(), but lets the
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caller choose between CLOCK_REALTIME (which the former call
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is always using), CLOCK_MONOTONIC, or CLOCK_MONOTONIC_RAW.
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For example, this enables libffado's audio streaming to run
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undisturbed by resets of CLOCK_REALTIME.
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At runtime, this call requires firewire-core underneath.
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- raw1394_get_speed():
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Returns the speed code of the maximum possible transmission
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speed between a given node and the local node. This takes
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maximum speeds of all participating PHYs and the two links
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into account. This can be used to configure the speed of
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isochronous streams.
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At runtime, this call requires firewire-core underneath.
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- enum raw1394_iso_speed was extended by
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RAW1394_ISO_SPEED_800, _1600, and _3200.
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- New APIs in <libraw1394/ieee1394.h>:
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- Added preprocessor constants
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L1394_SPEED_BETA, L1394_SPEED_800, _1600, and _3200.
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- testlibraw1394:
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Added unit tests of the new APIs.
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Version 2.0.9:
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- Fix that raw1394_iso_recv_flush() did not have any effect when running
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on firewire-core alias juju kernel drivers. Requires kernel 3.4 or
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later.
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- Remove build-time dependency on linux-headers. Before, if too old
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kernel headers were present on the build system, features and fixes
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would be silently omitted from the build.
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- Remove --with-fw-dir configure switch which is no longer useful.
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- Janitorial fixes.
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Version 2.0.8:
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- Configuration ROM access via raw1394_read() is dramatically faster and
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very robust now. We read the kernel's Configuration ROM cache instead
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of the actual register of the FireWire device.
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- Internally retry raw1394_read/write/lock/lock64() after ack-busy
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response. Most notably this fixes control of some older Panasonic and
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Grundig camcorders.
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- small bug fixes
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Version 2.0.7:
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- Fix playback to some audio devices based on the DICE chipset.
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Version 2.0.6:
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- Bug fixes, notably for FCP and request reception on firewire-core.
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Note, several of these updates are only built into libraw1394 if
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linux-headers 2.6.36 or later are present at build time.
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Version 2.0.5:
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- Bug fixes, in particular, for isochronous transmission and FFADO project.
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Version 2.0.4:
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- Fix build due to incomplete tarball.
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Version 2.0.3:
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- various bug fixes, in particular for firewire stack
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Version 2.0.2:
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- Fixed license headers on new files introduced in v2.0.0 to be consistent
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with LGPL v2.1.
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Version 2.0.1:
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- Optimized usage of /dev/fw? nodes based upon user permissions.
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- many good bugfixes
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Version 2.0.0:
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- added support for new firewire subsystem.
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- removed deprecated isochronous functions.
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Version 1.3.0:
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- added raw1394_read_cycle_timer() as used by FFADO project.
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- added support for environment variable RAW1394DEV to override default
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device node /dev/raw1394.
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- added --with-valgrind to configure script.
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- other optimizations and bugfixes - see ChangeLog.
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Version 1.2.1:
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- generate compiler warnings on deprecated functions (legacy isochronous).
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- bugfixes and optimizations.
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Version 1.2.0:
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- added constants useful for ARM: transaction and response return codes.
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- added raw1394_bandwidth_modify() and raw1394_channel_modify().
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Version 1.1.0:
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- added ability to specify the isochronous receive mode in the new
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rawiso (raw1394_iso_*) API. Therefore, the signature of
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raw1394_iso_recv_init() changed, and likewise, the libtool/.so version
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numbers changed to reflect a new interface that is not backwards compatible!
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- added raw1394_arm_set_buf() and raw1394_arm_get_buf() functions.
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- added raw1394_new_handle_on_port() to make initialization simpler.
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- make versioning consistent and updated. 1.0.0 was reported by pkg-config in
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0.10 series; hence, 1.1.0 in this release.
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- removed outdated, bogus "linking required only" version symbols in
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version.c - use pkg-config now.
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- dropped libraw1394.m4 - use pkg-config now.
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- added RPM spec file.
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- deprecate old isochronous API.
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- move API comment documentation to header and reformat header comments as
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kernel-doc (use linux/scripts/kernel-doc to extract and format them).
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- updated tools/dumpiso and tools/sendiso to new isochronous API.
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Version 0.10:
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- merged in the rawiso branch
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- add sendiso and dumpiso tools with man files
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- fix wrong error mapping on local transactions in raw1394_errcode_to_errno().
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- added comment headers for most exported functions
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- merged in weihs branch which brings new functionality including address
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range mapping, reading and writing configROM images, additional bus reset
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handling, and others.
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Version 0.9:
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- error reporting reworked to be more C library style; functions affected are
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mainly raw1394_read(), raw1394_write(), raw1394_lock;
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Source incompatibility! Parts need to be adapted in application code, but
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it's well worth it.
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- the generation number is not unconditionally updated on bus reset in the event
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loop anymore, the new function raw1394_update_generation() has to be used
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(unless the default bus reset handler is used) so that transactions won't fail
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- iso handlers used to get the iso header quadlet in host endian, now they get
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it in big endian like the rest of the packet for consistency
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- testlibraw gets installed now, man page also included
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- (not yet complete) documentation in Docbook format included
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- libraw1394.m4 autoconf macro added
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Version 0.8:
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- added libraw1394/ieee1394.h with useful defines (especially ack and rcodes)
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- function to query isochronous resource manager ID
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- functions for isochronous sending
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- new raw1394_reset_bus() function to reset the bus
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Version 0.7:
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- added support for environments where the kernel runs in 64 bit mode whereas
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user space runs in 32 bit mode
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- fixed lock transaction to actually return the required response; these
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functions are actually useful now, prototypes for raw1394_start_lock and
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raw1394_lock changed
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- a void pointer can now be stored as user data with a handle
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Version 0.6:
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- FCP monitoring added
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- not really libraw1394 news: the subsystem doesn't swap data anymore,
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everything is to be kept big endian now on all architectures
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Version 0.5:
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- there are now separate iso handlers for each channel
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Version 0.4:
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- isochronous receive support
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Version 0.3:
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- first release of new libraw1394 for new raw1394 driver
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- supports 1394 async reads/writes
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- maintainer: Andreas Bombe <andreas.bombe@munich.netsurf.de>
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