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| author | Takashi Sakamoto <o-takashi@sakamocchi.jp> | 2017-03-22 21:30:16 +0900 |
|---|---|---|
| committer | Takashi Iwai <tiwai@suse.de> | 2017-03-28 12:33:26 +0200 |
| commit | 9863874f02e1cca65bdb112336250890b2ded64a (patch) | |
| tree | d14a93124402ac63f01a8926a3623bb801a6348f /tools/perf/scripts/python/stackcollapse.py | |
| parent | a04513f8b1980e7ddd9082461aceaf8b3e8f4981 (diff) | |
ALSA: firewire-lib: add support for source packet header field in CIP header
In IEC 61883-1, CIP headers can have a SPH field. When a packet has 1 in
SPH field of its CIP header, the packet has a source packet headers. A
source packet header consists of 32 bit field (= 1 quadlet) and it
transfers time stamp, which is the same value as the lower 25 bits of the
IEEE 1394 CYCLE_TIMER register and the rest is zero.
This commit just supports source packet header field because IEC 61883-1
includes ambiguity the position of this header and its count. Each
protocol layer is allowed to have actual implementation according its
requirements.
Signed-off-by: Takashi Sakamoto <o-takashi@sakamocchi.jp>
Signed-off-by: Takashi Iwai <tiwai@suse.de>
Diffstat (limited to 'tools/perf/scripts/python/stackcollapse.py')
0 files changed, 0 insertions, 0 deletions