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parts needed for wscons on i386 and alpha.
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console framework. It doesn't provide direct device driver entry points
but makes its functions available via the internal wsdisplay(4) interface.
The pcdisplay driver is indended as a minimal ``catch-all'' driver for
the different kinds of MDA or CGA compatible adapters. It doesn't support
multiple screens, nor colors or font loading.
From NetBSD. Contains routines used by the vga(4) and ega(4) drivers, etc.
This is more MI stuff in prepartion for wscons on i386 and alpha.
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files could probably be updated even a bit further (they are from mid-summer).
In addition, I've added support for console scrollback, somewhat inspired by
Linux's vgacon driver. Basically, instead of allocating our own buffer and
doing lots of copies, we take advantage of Video RAM and just modify the VGA
display origin register as appropriate. This approach has a few advantages:
simple to implement, no wasted KVM, it's fast, and after a boot you can now
scroll back all the way to the BIOS messages (assuming your msgbuf is of a
typical length :). Disadvantages are that the VRAM buffer is relatively
small (only 32k) and we do not support raster devices through this method.
(thanks to mickey@ for pointing this out).
The code for this is fairly unobtrusive, so should we come up with a better
approach to console scrollback at a later time (i.e., even more platform
independent) it should be easy to revert this.
We're one step further in porting nice features of PCVT over to wscons.
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anywhere quite yet, but useful to have these files in the tree while we work
towards wscons for i386 and alpha.
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Problem found by Thomas Coffy <karma@bsdfr.org>
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Propagate verbose flag from cf_data to channel
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- Fix an incorrect interrupt sharing type.
- Always clear PCIC_INTR_ENABLE; it doesn't do what one might think.
- Eliminate stray interrupts during the IRQ probe.
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On suspend, the apm code calls each function in its powerhook list. This list
contains pointers to functions that are to be executed on PWR_SUSPEND and
PWR_RESUME. One of these functions is pcmcia_power() which calls xxx_activate()
for each PC Card that is connected with the action DVACT_ACTIVATE (where xxx
is the name of the driver for the PC Card). On resume, the same thing happens,
except the action is DVACT_ACTIVATE.
Clearly, if a card is gone when we resume, trying to activate it is a bad idea.
This commit adds a pcic_power() function that runs before pcmcia_power(). On
resume, it uses pcic_intr_socket() to detect any events that occurred while we
were suspended. (I had to split pcic_event_thread() into a threaded part and
a non-threaded part, since the thread will not run when we are in interrupt
context, but I need the events to be processed before pcmcia_power() runs.) So,
by the time pcic_power() is through, all events that occurred during suspend
have been processed, and pcmcia_power() will not try to activate cards that are
not there since they have already been completely and properly detached.
Note that event handling for card removals first calls the deactivate functions
on the card then the detach functions. When we suspend, apm does the deactivate
for us. So on resume, if we detect a card has been removed, we skip the
deactivation step and just detach. We use the DVF_ACTIVE bit to determine
whether or not deactivation has already occurred. Deactivating a device that
has already been deactivated causes a panic.
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event notification from the pcic (if an interrupt is available) or allow the
insertion and removal of PCMCIA devices even if there is no IRQ for the pcic.
Each socket is checked for status change every 0.5 seconds using art's timeout
code. Insertion and removal events should no longer ever go unnoticed.
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some laptops. Only seems to cause problems with some card, notably
wavelan and aironet.
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Noone ever answered my call for testers so here it goes.. helps ne problems
as ne at 0x300 gets a bit whacked by eg's probe
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from NetBSD.
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machines, this code needs the new PCIBIOS* options enabled in the kernel config
file to work, but your mileage may vary. Included is a working 3c575 driver for
3Com 10/100 CardBus PC Card NICs (tested only with the 'C' revision). The 3c575
is the pccard version of the PCI EtherLink XL cards, and thus the xl driver has
been split into /sys/dev/ic.
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laptops.
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code in twice
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This is as is in NetBSD. I've some mods in my tree ready to be merged.
For the records:
* This driver needs massive work to be ready for production (people is
invited to help, don't be shy). Rewrite part/whole is my list.
* IP isn't working at the moment. ARP handling needs several changes.
(remember this guys? maybe this time...)
* This only handle SNAP frames. IPX using IPX frames doesn't work (you
could receive but not transmit to be exact). In order to do that, dsap
needs to be changed. I don't know how to setup multiple dsap's at the
moment (don't worry about it now, our IPX code is going to be replaced
soon since the current implementation is buggy).
* Source routing is missing.
* tcpdump needs some hacking too (in my tree too).
* More things I'm probably forgetting now (haven't worked on this for
a while).
Our networking code needs some cleanup and rearrangement (specially
the headers). net/if_ether.h is an example; arp is not ether specific.
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<cyxob@isl.vtu.lt>.
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Separate wdc_probe_caps into wdc_probe_caps and wdc_print_caps for more
flexibility in printing capability information.
Get rid of wdc_final_attach.
Include name of device (e.g. cd0), if possible, on errors.
atapiscsi layer work:
Put a pointer to the SCSI device into ata_drive_datas' drv_softc field
Simplify, simplify, simplify. Got rid of a bunch of fields in atapiscsi_softc
Delay printing capabilities until we know the real device name (e.g. st0)
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otherwise. Also move the motor off up so that it always gets performed,
even if the probe is overridden via config flags.
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Modify some code for simplicity and remove unused one; from NetBSD.
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control fix
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