Clean up one bug in a DPRINTF in arrs_input which could panic on some packets.
Gut the ack/response functionality and clean it up so all packets get checked
correctly and the abuf struct isn't used once the ab_cb has happened (there
still could be ack packets waiting to be processed at that time).
Finally, add some documentation explaining read/write/inreg and their
purpose/argument calling.
my time shortage):
- Use 8 column for basic indent.
- Use 4 space for 2nd level indent.
- Use tab instead of 8 spaces.
- Don't put space before function call operator. That's unary operator.
- Wrap lines so that it fits in 80 columns.
Move interrupt routine to simply updating state flags and ack'ing interrupts
Move main processing into kthread
Change IPL level to IPL_BIO and try not to hold splbio very much if at all.
Add baseline support for attaching/detaching/updating fwnode's.
Start adding higher level API which isn't tied to if_fw/mbuf's
Use Global UID register as is, it should be initialized by firmware.
If it is not initialized (i.e. 0), try to read GUID ROM if exists.
On my VAIO PCG-N505AS, the version register says it implement GUID ROM,
but reading GUID ROM returns all zero bytes. I'm not sure where the bug is.
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.
jmc