Still use memcpy in receiving because we must use buffer fill mode
and many packets may share single receive buffer.
XXX: Workaround(?) for CXD3222: it fails to DMA for selfid packet according
to code placement. I'm not sure about the reason (cache? timing? bug?).
Fixed the bug: transmitter sometimes stop and OACTIVE bit of if_fw
never be cleared.
Fixed the bug: freeing free buffer.
Enable ieee1394_drain and ieee1394_watchdog for loss of fragment.
Use PAGE_SIZE instead of OHCI_PAGE_SIZE for each DMA mem.
OHCI_PAGE_SIZE(2kB) will be round up PAGE_SIZE, anyway.
XXX: need more sophisticated way to manage buffer.
Clear IntEvent first not to lose SelfIDCompleted in multiple bus reset.
Be careful not to clear BusReset int event in SelfID duration to follow
the OHCI spec.
Initiate BusReset if selfid is not completed within 3sec after busreset.
Current status:
Only OHCI chip is supported (fwohci).
ping (IPv4) works with Sony's implementation (SmartConnect) on Win98.
sometimes works but not stable.
Not implemented yet:
IRM (Isochronous Resource Manager) functionality.
Link layer fragmentation.
Topology map.
More to do:
clean ups
MCAP
charactor device part
dhcp
There is no entry in GENERIC config file yet.
Follow sys/dev/ieee1394/IMPLEMENTATION to enable if_fw.
and bus-independent module that just begins to print things out. No real
code behind it. THIS IS A WORK IN PROGRESS. The *reg.h are woefully
incomplete.
enami