85286bff2f
convert these to use new <machine/bus.h> interfaces. This involved
...
substantial reworking of the multi-port drivers, as they need to frob
bits in the io-port spaces of their children. As a result, the
commulti->com attachment interface is substantially more complex.
(This may be fixable in the future by making some of the code common,
but as long as io-port allocation checking is planned, it's necessary.)
1996-03-10 09:01:20 +00:00
a7c6dfe1cd
include comvar.h for comprobe1() prototype
1996-03-09 01:02:08 +00:00
4005c5fd09
Fix typo (PR 2123, from Michael VanLoon)
1996-02-26 22:48:32 +00:00
a35f0ac985
Add more debugging code.
1996-02-20 12:13:09 +00:00
5021ab87f1
Update copyright notice.
1996-02-19 15:23:25 +00:00
5bc567b0d3
Set IER_ETXRDY before outputting any bytes, to prevent race condition.
1996-02-19 15:09:25 +00:00
c011a5eae4
Handle break more correctly.
...
Make IER_ETXRDY track TS_BUSY. (Prevents a loop in comintr() if no output
is available.)
Add a bunch of debugging code.
1996-02-19 14:53:03 +00:00
e5730c4a73
Fix a race condition where we might stop outputting if a write follows a
...
flush too closely.
1996-02-18 09:10:15 +00:00
203f5d5329
Add some text describing the UART lossage worked around in the previous.
1996-02-17 04:51:41 +00:00
121f6570d7
Drain the transmitter FIFO before changing the baud rate or FIFO depth
...
registers. Fixes PR 2046.
Also, if COMCONSOLE is defined, expect CONSPEED to be the baud rate.
1996-02-17 04:04:28 +00:00
11d31f7ce7
Hayes ESP patches [from PR database]
1996-02-10 20:23:18 +00:00
d3427703db
Hayes ESP support from Michael Van Loon, with minor cleanups. Tested on
...
a single port ESP card; works great!
1996-01-14 23:44:34 +00:00
3da4b2a160
The IST_* and IPL_* constants are not bus-specific; don't treat them as such.
...
Change splimp -> splnet in Ethernet, ARCnet, and FDDI drivers.
1995-12-24 02:29:35 +00:00
f096f370fb
Use SET(), CLR(), and ISSET() macros.
...
Rename CFCR to LCR, and cache its value.
Check MSR before transmitting, for better flow control.
Preserve LCR_SBREAK inside comparam().
1995-10-15 19:43:04 +00:00
eb99dcc09a
Fix a condition where ttywait() wouldn't be woken up. Also, short-circuit
...
the case of no pending input in compoll().
1995-07-04 06:47:18 +00:00
2b71eae2c7
note that most of dev/ic's contents have changed names
1995-06-28 04:30:30 +00:00
4bfd7749ad
Various:
...
* Check for CTS in the correct register.
* Only do a selwakeup() if we output something.
* Don't make assumptions about what TTYDISC does.
1995-06-05 19:08:09 +00:00
5b37a8fded
Handle BREAK correctly when not entering DDB.
1995-06-04 20:50:14 +00:00
38847d04c0
Add an input FIFO, and fix several flow control problems. Based on code from
...
Felix A. Croes.
1995-06-04 20:39:22 +00:00
d045544ebd
Changed ns82450 to ns8250 and dropped ns82550 from probe console messages.
1995-06-01 21:26:51 +00:00
addaff473b
Only use the `no pending interrupt' bit in the IIR; the other bits
...
are too unreliable on clone chips.
1995-05-28 03:26:37 +00:00
c821cb684a
(1) conditionalize debugger usage in comeint with DDB, not COMCONSOLE;
...
latter would lead to undefined symbols if DDB not defined.
(2) check for break on console, and therefore debugger entry (if ddb
in kernel) earlier, so that the device doesn't need to be open.
(3) return immediately after breaking into the debugger in comeint().
(4) only do the normal character input routine in comintr if receive
mask yeilds _EXACLTY_ LSR_RXRDY. if there's only a receive
error, or there's a receive error _and_ a received character,
do comeint().
(former two by me. latter two from Bob Baron <rvb@cs.cmu.edu>.)
1995-05-12 17:54:41 +00:00
c9319ad5c4
<break> --> ddb if defined(comconsole).
...
(if you have a serial console and you hit break, you get ddb).
1995-04-28 00:34:08 +00:00
9e28a35469
Fix thinko in previous change.
1995-04-19 22:04:33 +00:00
53d73c77a5
Garbage collect #includes.
1995-04-19 19:10:35 +00:00
e1315808a7
Implement comtty().
1995-04-19 18:59:27 +00:00
8a640328ed
clean up several ISA device interfaces: autoconfiguration, header
...
inclusion, and interrupt configuration. more work still needs to be done,
but it's getting better...
1995-04-17 12:06:30 +00:00
95c5c4f79f
Most of the console functions return void. Also change interrupt logic
...
slightly.
1995-04-10 01:05:55 +00:00
3a7bbb1acd
lip service to making ISA support machine-independent. This is the first
...
round: moving the drivers into a machine-independent directory.
Some drivers (e.g. fd.c) not moved because they use other pc features (e.g.
CMOS settings), and none of the non-driver files moved, because they're
still pretty much PC specific. eventually (when other ports with ISA
busses really start using this code), more 'high-level' ISA support will
live here.
1995-01-29 07:36:54 +00:00
f11e7e33fe
use chip headers in /dev/ic
1995-01-29 02:58:20 +00:00
0a22930d97
Explicitly test the RXRDY status bit on incoming characters.
1995-01-11 09:56:40 +00:00
6125e1b551
Fix oversight in previous.
1995-01-04 00:47:53 +00:00
b5cf1b5ddd
Add interrupt sharing types.
1995-01-03 01:30:14 +00:00
cba32aa25f
Minor update for new autoconfig.
1994-11-25 08:17:21 +00:00
35cdd801e6
Convert port, IRQ, and DRQ numbers to ints.
1994-11-18 21:57:40 +00:00
ebbdd6473b
Update to match autoconfig code.
1994-11-03 23:26:03 +00:00
6ac2bbfc35
be more careful with types, also pull in headers where necessary.
1994-10-30 21:43:03 +00:00
022ee8f7fe
new RCS ID format.
1994-10-27 04:14:23 +00:00
556a119342
Implement *cnpollc().
1994-10-26 18:06:30 +00:00
c7003d37d3
Only reset FIFO if changing baud rate. From John Kohl (slightly edited).
1994-09-16 02:50:39 +00:00
5e4a51278b
Set the FIFO threshold based on the receive speed, per Mark Weaver.
1994-08-24 07:25:18 +00:00
8b8390a4bb
Look for MDMBUF in cflag, not lflag.
1994-08-21 15:04:37 +00:00
59de58a39b
Count up the silo overflows and only log a warning at most once per minute.
1994-08-07 11:27:51 +00:00
8a9df6389d
Bug fixes from Mark Weaver.
1994-07-31 11:34:38 +00:00
e872e13605
allow MDMBUF flags to be set (oops)
1994-04-10 10:29:06 +00:00
3f5e4f423f
Implement dynamic IRQ configuration and IRQ sharing. Inline spl*() calls.
...
Reorganize and clean up the relevant code.
1994-04-07 06:48:19 +00:00
592ec61b17
Updates for new autoconfig.
1994-03-29 04:35:37 +00:00
008f13bb69
Fix off-by-one error in comopen() unit number sanity check. From Brian de
...
Alwis.
1994-03-25 04:38:01 +00:00
4cc5b77bfa
Some stylistic cleanup, and a very minor speedup.
1994-03-23 03:01:50 +00:00
c6b399cce8
add AST-style serial multiport support, from Roland McGrath
...
<roland@@frob.com>. Needs light clean by Mr. I386, but mostly
OK. For some reason, Bad Things (TM) happened on the last cvs commit.
1994-03-23 01:28:23 +00:00
cgd