CVS log for src/sys/dev/pci/com_puc.c

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Sync with HEAD.

Sync with HEAD.

Introduce sc_poll_ticks and obsolete COM_HW_POLL bit in sc_hwflags.
Polling is scheduled at every sc_poll_ticks ticks.

This is useful to work around H/W bug, by which interrupts are lost
*sometimes*; interrupt-based I/O mostly works and no need for polling
every counter ticks.

Sync with HEAD

Sync with HEAD, resolve a few conflicts

Clean up initialization of com_regs structure, in preparation for
some additional changers.

Add support for polling com devices when no interrupt is available.

update from HEAD

Sync with HEAD

Sync with HEAD - tag prg-localcount2-base1

 Use {isa,pci}_intr_establish"_xname"() for intrctl(8).

Rebase to HEAD as of a few days ago.

Rebase.

 Print the type of serial port from the interface field in the PCI class
register.

sync with head.

for a reference, the tree before this commit was tagged
as yamt-pagecache-tag8.

this commit was splitted into small chunks to avoid
a limitation of cvs.  ("Protocol error: too many arguments")

sync with head

make pci_intr_string and eisa_intr_string take a buffer and a length
instead of relying in local static storage.

sync with head

On x86, print the I/O address of lpt_puc as for com_puc so that hacks
using iopl/ioperm can be told where to find the parallel port.

Closes PR kern/43683.

sync with HEAD

Since puc(4) serial ports are typically not identified in the
BIOS COM[1234] table, the I/O address must be manually set using
installboot(8) in order to enable a serial console.
Print the address here so the user doesn't have to dig through
PCI configuration space to find it.

Enable suspend/resume hooks.

sync with head

Cleanup interrupt establish error messages. Do not mix
aprint_error/aprint_normal/printf calls for a single line.

Sync with HEAD.

sync with head.

sync with HEAD

sync with head.

Split device_t and softc for all com(4) devices (well, everything that
uses a com_softc backend).  Use proper types and ansify where appropriate.

sync with HEAD

sync with head.

Sync with HEAD.

Follow the merge of pmap.c on i386 and amd64 and move
pmap_init_tmp_pgtbl into arch/x86/x86/pmap.c. Modify the ACPI wakeup
code to restore CR4 before jumping back into kernel space as the large
page option might cover that.

Sync with HEAD.

Sync with head.

machine/{bus,cpu,intr}.h -> sys/{bus,cpu,intr}.h

sync with head.

sync with head.

Sync with head.

__unused removal on arguments; approved by core.

sync with head

- sprinkle __unused on function decls.
- fix a couple of unused bugs
- no more -Wno-unused for i386

sync with head

sync with head

Add an option COM_REGMAP to allow com(4) to use an array of register indices.
This allows us to convert aucom to just another com attachment, and cleanup
some code in the com_arbus.c.

Additionally, we use a common com_cleanup routine rather than having a
zillion copies of it in the attachment points.

This has been tested on a number architectures, and it has been shown to get
close to comparable performance when COM_REGMAP is defined, and comparable
when it is not defined.

Approved by core@.  Fixes PR port-evbmips/32362.

Undo the undo.  Restore COM_INIT_REGS.

Revert COM_INIT_REGS.

Adapt to new com framework.

merge ktrace-lwp.

Sync with HEAD. Here we go again...

Use ANSI function decls and static.

sync with -current

sync with head.

Sync with HEAD.

de-__P

Fix the sync with head I botched.

Sync with HEAD.

Sync with HEAD

Fix a warning about possibly uninitialized variable.

Enable the 8X clock on the SIIG Cyberserial serial and combination PCI
cards at attachment time, in order to support bit rates greater than 115K,
as discussed on tech-kern.

Use aprint_*().

Catch up to -current.

sync kqueue with -current; this includes merge of gehenna-devsw branch,
merge of i386 MP branch, and part of autoconf rototil work

Add trailing ; to CFATTACH_DECL.

Use CFATTACH_DECL().

Declare all cfattach structures const.

Sync kqueue branch with -current.

Catch up to -current.

don't need <sys/types.h> when including <sys/param.h>

Catch up to -current.

add RCSID

Catch up with -current.

Sync with HEAD.

Pull up revision 1.2 (requested by bouyer):
  Allow attaching ``com'' devices at frequency other than the
  standard COM_FREQ.

Ops, forgot to commit this file along with the "variable com freq" support.
Thanks to Bill Sommerfeld for pointing this out.

add a driver for "PCI 'universal' communications" cards, that is, PCI cards
which contain 'standard' com- and lpt-type ports.  Some of these present
as PCI simple-communications/serial or simple-communications/parallel
devices, but many do not.  (Additionally, there is no document that I can
find that describes the "specific well-konwn register-level" description
of how the 'standard' devices' config space headers shold work.)  Eventually,
some of the devices driven by this code should become simple pci attachments
for the 'lpt' and 'com' drivers, but that requires solid documentation.