Commit Graph

171 Commits

Author SHA1 Message Date
simonb 9e370d4402 Delete redundant decl of com_attach_subr(), it's in comvar.h. 2000-03-30 02:04:30 +00:00
thorpej fc96443d15 New callout mechanism with two major improvements over the old
timeout()/untimeout() API:
- Clients supply callout handle storage, thus eliminating problems of
  resource allocation.
- Insertion and removal of callouts is constant time, important as
  this facility is used quite a lot in the kernel.

The old timeout()/untimeout() API has been removed from the kernel.
2000-03-23 07:01:25 +00:00
thorpej a183d34f04 - Implement cnbell() -- ring the console bell. The cn_bell entrypoint
is optional.
- Add cn_bell to statically allocated consdevs as appropriate.
2000-03-06 21:36:05 +00:00
jonathan e9a4467c58 Fix thinko in previous revision: it wouldn't catch deassert.
Revert the code inside the new test to the previous-but-one revision.
2000-02-07 02:17:18 +00:00
jonathan 2da22cf2c5 Check for DCD status change interrupts which signal PPS events, even
if the line discipline is ignoring carrier (e.g., via comparam()'s
setting of sc->sc_msr_mask).  Move PPS timestamp outside the normal
status-change processing, and ignore sc_msr_mask when testing
for PPS events.
2000-02-06 23:23:37 +00:00
soda 3d14a7c591 kluge to make this work with NEC M403 (arc/magnum). 2000-01-23 21:06:01 +00:00
drochner b95651b752 set carrier early if used as console or kgdb line, fixes PR kern/6547
by Andreas Gustafsson, gson@iengines.com
1999-12-21 11:04:36 +00:00
sommerfeld 17d170b1ca defopt COM_DEBUG, COM_HAYESP, and COM16650 1999-11-22 03:53:38 +00:00
jonathan 0588cdfc88 Update user-level PPS-API to match -05 draft.
Change PPS_<xxx> ioctls to PPS_IOC_<xxx>.
1999-11-04 05:33:58 +00:00
jonathan b31080319e Fix nanosecond/microsecond botch in PPSAPI:
remove bogus TIMESPEC_TO_TIMEVAL() after applying any {assert,clear} offset.
1999-10-15 06:16:15 +00:00
ross 4b0326d939 Get rid of delay() in com_common_putc() because the Shark delay() is borked
and can't be called until after the timers are setup. (It should not use
a timer, or it should have a fallback algorithm.)
1999-04-19 19:27:31 +00:00
thorpej 552465011e Revert revision 1.159. The correct answer was not to re-break the
serial console support, but rather to fix the Shark delay().
1999-04-18 22:02:47 +00:00
mrg 833fb0ac7f back date this file to version 1.155 which works on the shark. 1999-03-31 12:44:04 +00:00
mycroft f487bc59aa Nuke bogus extra variable, too. 1999-03-29 13:40:41 +00:00
mycroft 85ad0d175c Fix bogons in previous change:
* The fact that IIR_NOPEND was not set on entry does *not* mean that no
  transmission was in progress.  Besides, we don't want to throw away receive
  interrupts either.
* In the !clearirq case, we didn't splx().
1999-03-29 13:21:15 +00:00
ross 6a228da053 Mods to com_common_putc(). When doing kprintf() or kgdb output:
1. don't clear the irq unless it was clear before transmitting
2. also do various bus_space_barrier() ops
Stops console from freezing when kprintf interrupts tty driver output.
1999-03-29 10:01:39 +00:00
explorer 3ebb419571 Update to slightly altered rnd_attach_source() api 1999-02-28 17:08:05 +00:00
drochner 525932e022 make the probe stricter to catch cases where the chipset doesn't pull
the data lines to "high" for not-existant devices
1999-02-12 12:45:48 +00:00
mycroft 0c7afe477d Separate the tiocm code into functions, like the z8530 code, and fix the same
DTR bug.
1999-02-03 23:57:27 +00:00
mycroft 9be96dda95 Fix an inconsistency: PPS was turned off on first open, but the mode may have
still claimed it was enabled.
1999-02-03 23:22:11 +00:00
mycroft 535f59cc81 Slight redux in PPS code. 1999-02-03 23:20:33 +00:00
drochner a7f50b8178 Debugger() -> console_debugger() to honour the ddb_fromconsole sysctl 1999-01-26 17:08:37 +00:00
thorpej 3e086bd63d Add support for detaching "com" instances. 1998-11-18 23:58:52 +00:00
is 95807e512a Garbage collect unused 3rd parameter to comprobe1(). 1998-09-16 21:30:58 +00:00
thorpej d1fba4e7e5 Don't use M_WAITOK to allocate the ring buffer; we could be in interrupt
context.  Reported by Lennart Augustsson.
1998-09-09 05:17:53 +00:00
mycroft d07b3639a4 Assign my copyrights to TNF. 1998-08-15 17:47:15 +00:00
jonathan 466e784ee1 defopt DDB. 1998-07-04 22:18:13 +00:00
jonathan bbc2d1522a PPS support from April, reworked and extended to match the PPS-API
Internet Draft (draft-mogul-pps-api-02.txt).
1998-06-10 12:06:23 +00:00
mycroft 2bb5067e13 Move the code to wait for carrier on a tty into a common function, since it
depends only on device-independent state bits.
Implement SunOS-style `dialout' devices.
1998-03-22 00:55:37 +00:00
mycroft 16566cda09 Remove a bogus initializer. 1998-03-21 04:27:58 +00:00
mycroft 2ada4b4af1 Replace TS_WOPEN with t_wopen, per mail on tech-kern. 1998-03-21 04:02:47 +00:00
ross 081231b1ad Add dummy }} after comsoft() to keep ctags(1) bashing on. 1998-02-25 08:32:35 +00:00
enami e12f85fbc1 Disable the device if we fail to open and nobody else has the device open.
(Thanks Charles and Marc for your advices).
1998-02-22 05:09:58 +00:00
mycroft 11b3fea04a Fix bonehead error in previous change. 1998-02-22 03:24:58 +00:00
mycroft 84a72d6ff4 Remove stray label from last change. 1998-02-19 09:33:33 +00:00
mycroft 06ec9f646f Arrange to call com_break() and com_modem() at splserial().
It's simpler this way.  Really.
1998-02-19 09:23:38 +00:00
thorpej 5fe6759646 Fix serial console support, which was broken by the previous revision:
- In the console getc routine, block until a character becomes ready
  (no, really, we mean it).  This routine should _never_ time out.
- In the console putc routine, if the UART has trouble, do NOT proceed
  to print a diagnostic message, which would recursively invoke the
  console putc routine ad nauseum.
1998-02-09 10:22:45 +00:00
enami 9d13bc6e0e Restore system priority level before return from comopen(). 1998-02-06 03:25:34 +00:00
cgd 9bffcfef75 change #ifdefs keying on "alpha" to key on "__NO_SOFT_SERIAL_INTERRUPT"
instead, and define that on NetBSD/alpha and NetBSD/arm32.
1998-02-02 23:01:02 +00:00
cgd c2f42b2213 Implement a flag to indicate that the driver attached correctly.
This is useful in the case where an attachment's probe routine
verifies that there is indeed hardware present but something goes
"wrong" in the attach causing the device to be unusable.  (Without
keeping track of this, in that case incorrect ports could be
accessed or uninitted pointers could be deferenced on open or at
other times.)
1998-02-02 22:54:55 +00:00
marc 1d4b77e754 split com_attach_subr into attach stuff and per-open initialization stuff
add timeouts to all splserial() while loops so bugs elsewhere don't cause
the com driver to wedge the machine
 add power management support
1998-02-01 23:33:01 +00:00
thorpej 095c4c092d Adjust for config changes. 1998-01-12 09:23:08 +00:00
mycroft f1170022ce Don't do anything in comparam() if the line speed and flags are the same. 1997-12-16 22:52:37 +00:00
mycroft 13e9b38191 Slight optimization in soft input routine. 1997-11-03 08:20:35 +00:00
mycroft 067898abb8 Mostly cosmetic and performance changes:
* Make the ring buffer size and water marks patchable, and allocate the buffer
  separately.
* Do the ttymalloc() at attach time.
* Reorganize the receive buffer so the status and data pair are next to each
  other.  This is slightly faster.
* Make sure we actually do turn off interrupts in comclose() if we have DDB
  configured and it's not the console.  (D'oh!!!!)
* When we exhaust the current transmit run, turn off transmit interrupts in
  comintr(), so we're fairly sure we don't get another one.
* Nuke the silly lsrmap[] idea; it's slower in the normal case.
* Cache the l_rint pointer in the soft interrupt routine.
1997-11-03 06:12:02 +00:00
mycroft 61bf289f3e Slight code rearrangement. 1997-11-02 09:31:49 +00:00
mycroft acb27fb42a Slight code rearrangement. 1997-11-02 09:24:51 +00:00
mycroft 5869b743c7 Rearrange *param() slightly to eliminate a spl.
Also fix another comment regarding DTR.
1997-11-02 09:15:41 +00:00
mycroft 76b7dd52df Add another splserial()/splzs(). 1997-11-02 08:55:52 +00:00
mycroft acd97c6676 Minimize some spl regions slightly. 1997-11-02 08:50:31 +00:00