Commit Graph

518 Commits

Author SHA1 Message Date
Søren Schmidt
cc5625f0ed Oops, cut/paste could be done on tthe WRONG vty :(
pointed out by Kazu.
1997-02-13 11:58:49 +00:00
John Dyson
996c772f58 This is the kernel Lite/2 commit. There are some requisite userland
changes, so don't expect to be able to run the kernel as-is (very well)
without the appropriate Lite/2 userland changes.

The system boots and can mount UFS filesystems.

Untested: ext2fs, msdosfs, NFS
Known problems: Incorrect Berkeley ID strings in some files.
		Mount_std mounts will not work until the getfsent
		library routine is changed.

Reviewed by:	various people
Submitted by:	Jeffery Hsu <hsu@freebsd.org>
1997-02-10 02:22:35 +00:00
Kazutaka YOKOTA
445605a6e0 Fix for the Compaq Armada laptop.
The PS/2 mouse device responds to a reset command with a sequence of
ACK(fa), RESULT(aa) and ID(00).  Most PS/2 mice immediately returns
ACK, but spend sometime before sending RESULT. The Armada takes time
before ACK; extra delay is necessary before the call to read ACK.

The problem was reported in comp.unix.bsd.freebsd.misc and the patch
was tested by the reporter. No PR was filed, by the way.
1997-02-07 11:41:45 +00:00
Bruce Evans
d1adf9f099 Fixed the SMC fifo bug fix. sioopen() hung while input was streaming in
with <= 100 usec between each character arrival time.  This didn't happen
until rev.1.75 of clock.c because DELAY(100) used to delay for closer to
80 usec than 100 usec, and the minimum time between character arrivals is
87.8 usec at the maximum supported speed of 115200 bps 8N1.

Clear DCD timestamp flag on close (the input timestamp flag is already
cleared).
1997-02-01 16:04:16 +00:00
Søren Schmidt
ac59a2c67c Fixed the "switch to next screen" command (normally bound to the
key "print scrn".
It used to stop at the first non-open vty, now it skips the non-open
ones and thereby enable one to cycle around all open vty by pressing
"print scrn".
1997-01-30 15:12:17 +00:00
Bruce Evans
49a116737e Estimate an initial overhead of 0 usec instead of 20 usec in DELAY().
I have code to calibrate the overhead fairly accurately, but there
is little point in using it since it is most accurate on machines
where an estimate of 0 works well.  On slow machines, the accuracy
of DELAY() has a large variance since it is limited by the resolution
of getit() even if the initial delay is calibrated perfectly.

Use fixed point and long longs to speed up scaling in DELAY().
The old method slowed down a lot when the frequency became variable.
Assume the default frequency for short delays so that the fixed
point calculation can be exact.

Fast scaling is only important for small delays.  Scaling is done
after looking at the counter and outside the loop, so it doesn't
decrease accuracy or resolution provided it completes before the
delay is up.  The comment in the code is still confused about this.
1997-01-29 22:51:44 +00:00
Bruce Evans
160da193e0 Fixes and workarounds for Hayes ESP:
- don't uselessly initialize the fifo "DMA" bit at attach time.
- initialize the fifo "DMA" bit at open time.  Without this, the device
  interrupts for every character received, reducing input performance
  to that of an 8250.
- don't uselessly initialize the fifo trigger level to 8 (scaled to
  256) at attach time.
- don't scale the fifo trigger level to 512 bytes.  The driver's pseudo-
  dma buffer has size 256, so it can't handle bursts of size 512 or 256.
  It should be able to handle the second lowest ftl (2 scaled to 64).
- don't reset the fifos in siostop().  Reset triggers a hardware bug
  involving wedging of the output interrupt bit  This workaround
  unfortunately requires ESP support to be configured.
1997-01-29 21:50:02 +00:00
Søren Schmidt
0d3f983ad2 Add save/restore cursor as pr SCO screen(HW) manpage.
Fix ESC[2J to not move cursor home
Clear mouse cutmarking on more cases.
Minor changes by me.

Submitted by:	ache
1997-01-23 20:00:45 +00:00
Søren Schmidt
dc31ce3ddb Fix the bug that caused CTRL & ALT keys to be hanging sometimes after
an X seesion. Really stupid error of me, and I've been looking at
this code SO many times. Thanks to Kazutaka YOKOTA for seeing this..

Submitted by:	Kazutaka YOKOTA
1997-01-20 08:05:15 +00:00
Søren Schmidt
cf35b775cb Oops, the position of the savefont code was wrong, cur_console
wasn't set yet.
1997-01-19 17:34:14 +00:00
Søren Schmidt
6b2c8fd9c3 Oops! I commented out the waiting for retrace loops, because the
one in draw_mouse causes spontanious hangs on my p5-100 when I
move the mouse excessively. Forgot that on the last commit, so
using the mouse or destructive cursor would produce large amounts
of flicker..
1997-01-18 15:53:48 +00:00
Søren Schmidt
171b420b11 Bruce pointed out a bogon:
cur_console is NULL when copy_font() is first called from scinit().  This
is apparently harmless when scinit() is called early from sccninit() -
page 0 is apparently mapped r/w then, and 0->status contains suitable
garbage.  However, when there is a serial console, scinit() is first
called from scattach() when the page tables are completely initialized,
so the NULL pointer causes a panic.

Submitted by:	bruce
1997-01-17 15:49:13 +00:00
Bruce Evans
6bed7e5140 Guard against the i8254 timer being uninitialzed if DELAY() is
called early for console i/o.  The timer is usually in BIOS mode
if it isn't explicitly initialized.  Then it counts twice as fast
and has a max count of 65535 instead of 11932.  The larger count
tended to cause infinite loops for delays of > 20 us.  Such delays
are rare.  For syscons and kbdio, DELAY() is only called early
enough to matter for ddb input after booting with -d, and the delay
is too small to matter (and too small to be correct) except in the
PC98 case.  For pcvt, DELAY() is not used for small delays (pcvt
uses its own broken routine instead of the standard broken one),
but some versions call DELAY() with a large arg when they unnecessarily
initialize the keyboard for doing console output.  The problem is
more serious for pcvt because there is always some early console
output.

Guard against the i8254 timer being partially or incorrectly
initialized.  This would have prevented the endless loop.

Should be in 2.2.
1997-01-16 18:28:20 +00:00
KATO Takenori
280a2265d9 - Modified for PC-98.
- Included IBM-PC specific code in #ifndef PC98.
1997-01-16 14:56:16 +00:00
Søren Schmidt
b6b9dfa17e Upgrade the kbdio rutines to provide queued kbd & mouse events.
Minor other updates to syscons by me.

Submitted by:	Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp>
1997-01-15 18:16:32 +00:00
Jordan K. Hubbard
1130b656e5 Make the long-awaited change from $Id$ to $FreeBSD$
This will make a number of things easier in the future, as well as (finally!)
avoiding the Id-smashing problem which has plagued developers for so long.

Boy, I'm glad we're not using sup anymore.  This update would have been
insane otherwise.
1997-01-14 07:20:47 +00:00
Bruce Evans
b75504fdc2 Use breakpoint() instead of Debugger() in siointr1(). Debugger() doesn't
work in fast interrupt handlers because it calls db_printf() which uses
%es for string stuff and %es isn't initialized.
1996-12-23 19:57:33 +00:00
Alexander Langer
df5080050d Hawaii-Five-Typo 1996-12-19 00:26:22 +00:00
Bruce Evans
d43190805d Disabled half-baked disk statistics support. It didn't actually generate
statistics, so it just wasted scarce disk table slots and screen space.
1996-12-18 17:44:31 +00:00
Søren Schmidt
2092b5ac38 Fix the broken support for monochrome VGA's.
It was MY fault after all, damn..
1996-12-07 22:33:05 +00:00
Satoshi Asami
f48465862b Synchronize with the RELENG_2_2 branch.
Definite 2.2 candidate.

Submitted by: The FreeBSD(98) Development Team
1996-12-04 04:21:30 +00:00
Søren Schmidt
1f9d9075e4 Alot of fixes from kazu:
1. All the suggestions earlier made by Bruce: renaming some symbols,
stricter error checking, removing redundant code, etc.

2. The `psm' driver preserves the default counter resolution and
report rate, whatever they are after reset. (Based on reports and
suggestion from Nate and Rob Bolin).

3. The `psm' driver now does not check the so-called sync. bit in the
first byte of the data packet by default, so that the tapping feature
of ALPUS GlidePoint works (based on reports from Louis Mamakos). I
tested the code with ALPUS Desktop GlidePoint (M/N GP101) and found
no problem; tapping worked. It appears ALPUS produces several models
of GlidePoint. I hope the other models are OK too.

The check code can still be activated by defining the PSM_CHECKSYNC
option in the config file. (The bit checking slightly reduces, if not
completely eliminates, weird mouse behavior cased by unsynchronized
mouse data packets. It also helps us to detect if the mouse interrupt
can ever be lost. But, well, if there are devices which cannot be
supported this way...)

4. The `psm' driver does not include the protocol emulation code by
default. The code can still be compiled in if the PSM_EMULATION option
is specified in the config file. Louis Mamakos suggests the emulation
code is putting too much in the kernel, and `moused' works well.
I will think about this later and decide if the entire emulation
code should be removed.

5. And, of course, the fix in `scprobe()' from Bruce to cure the
UserConfig problem. My code in `kbdio.c' is slightly different from
his patch, but has the same effect. There still is a possibility that
`scprobe()' gets confused, if, for whatever reasons, the user holds
down a key for very long time during the boot process. But we cannot
cope with everything, can we?

Submitted by:	Kazutaka YOKOTA (yokota@zodiac.mech.utsunomiya-u.ac.jp)
1996-12-01 19:05:50 +00:00
Bruce Evans
c252c2507e Fixed input of BREAKs when IGNPAR is set and IGNBRK is not set. BREAKs
are always together with Framing Errors and they were incorrectly
treated as FE's and discarded.

Reorganized the BREAK/FE/PE tests.

Found by:	NIST-PCTS
1996-11-30 15:52:56 +00:00
Bruce Evans
eea9b0845f Reset h/w fifos (if any) in siostop(). Now ttyflush() works fairly well
with sio devices (not perfectly, since there is no way to flush the tx
holding register on 8250-16450's.  I'm not sure if resetting the fifos
flushes the tx shift register).

Reminded by:	NIST-PCTS
1996-11-30 15:29:31 +00:00
Bruce Evans
4670f800ec Fixed sloppy clearing of TS_BUSY. Don't clear it until the transmitter
is completely empty.  There is no interrupt for output completion, so
poll for it every 10 ms after output is nearly complete.  Now ttywait()
works right.

Reminded by:	NIST-PCTS
1996-11-30 15:19:19 +00:00
Bruce Evans
38e81cedcf Throw away input if CREAD is not set. POSIX requires no characters to be
received in this case even if the hardware doesn't have a CREAD bit.

Found by:	NIST-PCTS
1996-11-30 15:03:05 +00:00
Bruce Evans
9924e17950 Cleaned up CONSPEED changes. `comdefaultrate' gives the default
speed for the "com" console, not for general purpose "com" ports,
so there was no need to split it into comdefaultrate and condefaultrate.
1996-11-30 14:51:04 +00:00
Nate Williams
3d989d58d8 Fix UserConfig w/syscons.
The 'getchar' function in syscons (sccngetc) is used by UserConfig to
get keyboard input from the user.  When it was modified to use the
shared keyboard port routines it used the port passed in during the
probe routine.  Since the probe routine was not yet called, the port was
set to 0, which is obviously not going to work.

Pre-initialize sc_port to IO_KBD which is really a kludge, but it's how
the previous driver did it's job.

Found by:	remote GDB
1996-11-19 17:08:10 +00:00
Søren Schmidt
73e0f79f04 Only poll the keyboard if the data left in the buffer is from the
kbd, not if its from the psm device.
1996-11-15 08:45:24 +00:00
Søren Schmidt
6a90d9750d Finally a start at sharing the kdb controller routines between
syscons and psm, curtesy Kazutaka Yokota with minor changes by
me. This contains an update of the psm driver as well.
This also fixes the breakage that I introduced to the psm driver by
making syscons poll for keyboard events in the atempt to fix the
hanging keyboard problem.

It works perfectly for me, and I'd like to hear from all that
have had keyboard/ps/2 mouse problems if this is the cure...

Submitted by:	 Kazutaka YOKOTA (yokota@zodiac.mech.utsunomiya-u.ac.jp)
1996-11-14 22:19:17 +00:00
Bruce Evans
750059bbc5 Don't fiddle with RTS if RTS flow control is off. This gives applications
almost complete control over RTS (control of its initial value is still
missing).

This fixes PR 1644 for sio.

The author of PR 1644 wants it in 2.1.6 and 2.2.  This may be safe since
the complications are only in rarely used cases that I hope I've covered.
1996-11-13 18:31:57 +00:00
Søren Schmidt
65e925d16f 1. Avoid a race in scclose(). tty.c has kludges so that the race is
actually harmless.

2. Fixed code to match comment in scintr().

3. Don't allow even root to take control of the machine when securelevel > 0.
   I've secured the accesses to PSL_IOPL in all drivers and asked pst to
   review it, but he seems to be busy.  Write access to /dev/kmem and
   other critival devices currently leaks across raisings of securelevel
   via open fd's, so there may as well be a similar leak for PSL_IOPL.

4. (Most important.)  Don't corrupt memory beyond the screen buffers if
   the cursor happens to be off the 80x25 screen when syscons starts.

5. Fix console cursor update (not perfect yet).
Submitted by:   bruce
~
1996-11-11 22:21:03 +00:00
Nate Williams
6620cf7868 Removed 'XT_KEYBOARD' option from syscons. Document new-style way of
getting the same behavior using the flags, which can be done inside of
UserConfig.  (Also document other syscons flags which were previously
undocumented).

Requested by:	bde
1996-11-11 22:01:56 +00:00
Nate Williams
a973755bfa Allow us to enable the 'XT_KEYBOARD' code using a configuration flag.
This allows the user to add modify syscons's configuration flags using
UserConfig that will allow older/quirky hardware (most notably older IBM
ThinkPad laptops) to work with the standard boot kernel.

Inspired by:	The Nomads
1996-11-10 16:44:13 +00:00
Søren Schmidt
10661203e7 Fix the hanging keyboard problem under Xaccel. Apprently we are loosing
an interrupt somewhere. The solution here is to check for keyboard
input each time the screen update timer ticks. Not pretty, but works.
1996-11-04 21:01:08 +00:00
Joerg Wunsch
bb6382fae2 Fix the broken EOF handling in the floppy driver. The most obvious
appearance of this bug was the malfunctioning -M option in GNU tar (it
worked only by explicitly specifying -L).

Reviewed by:	bde, and partially corrected accoring to his comments

Candidate for 2.2, IMHO even for 2.1.6.
1996-11-02 23:31:11 +00:00
Paul Traina
39daae723d add in CONSPEED option which controls console serial port speed 1996-11-02 02:26:06 +00:00
Satoshi Asami
e30f001135 More merge and update.
(1) deleted #if 0

    pc98/pc98/mse.c

(2) hold per-unit I/O ports in ed_softc

    pc98/pc98/if_ed.c
    pc98/pc98/if_ed98.h

(3) merge more files by segregating changes into headers.

  new file (moved from pc98/pc98):

    i386/isa/aic_98.h

  deleted:

    well, it's already in the commit message so I won't repeat the
    long list here ;)

Submitted by:	The FreeBSD(98) Development Team
1996-10-30 22:41:46 +00:00
Søren Schmidt
66e7fce7ac Use the calibrated/adjustable i8254 frequency `timer_freq' instead of
TIMER_FREQ.

Fixed missing splx() in scrn_timer().  The bug was harmless because of the
undocumented behaviour that the ipl is automatically restored for timeout
functions (see softclock()).  Perhaps we should depend on this behaviour.

Fixed the ddb fix in rev.1.176.  The in_debugger flag was no use because
it only works when the debugger is entered via the keyboard hotkey.  The
debugger may be entered for breakpoints and traps, and the console putc
routine has no way of knowing when it was, so the console putc routine
must (almost?) always remove the cursor image.

Not fixed: console switching in ddb doesn't work (ISTR it working), and
console 0 shouldn't be switched to for the debugger hotkey unless console
0 is /dev/console.

Fixed side effects from calling add_keyboard_randomness() in the console
getc routine by not calling it.  add_keyboard_randomness() currently
always reenables interrupts on 386's and 486's.  This is very bad if the
console getc routine is called from the debugger and the debugger was
entered with interrupts disabled.

Fixed preservation of initial screen and now-bogus comment about it.  It
was broken by setting the initial scr_buf to `buffer' instead of Crtat.
`buffer' was full of nulls and the first scroll cleared everything above
the things written through syscons.

Submitted by:	bruce (bde@freebsd.org)
1996-10-26 20:16:58 +00:00
Bruce Evans
9272350657 Removed initialization of a variable that went away. Oops. 1996-10-26 00:11:57 +00:00
Bruce Evans
2d872b777d Print the clock calibration messages all on one (long) line again so
that they are easy to grep for.

Removed now-unused i586 counter variables.

Fixed some style bugs.
1996-10-25 13:46:21 +00:00
Paul Traina
dcb21864dc Remove SC_KBD_PROBE_WORKS option and replace it with a simple run-time flag
bit (0x0008) in the sc driver configuration line.  This way it's easy to
boink a generic kernel.

Also, document and place in an opt_ file the #define's for overriding which
serial port is the system console.
Approved by:	sos
1996-10-23 07:29:44 +00:00
Søren Schmidt
c070783c4b Changed mouse functionality a bit, now the pointer disappears if
there is keyboard input.
The mousepointer is shown again immediately if moved.

Also a function pointer used to install a userwritten extra
ioctl handler (sc_user_ioctl). This way its is possible to
install user defined videomodes etc etc. No further changes
should be in the kernel.
1996-10-18 18:51:37 +00:00
Søren Schmidt
b5ca878577 Corrected the setting of winsize on open().
Problem pointed out by David Nugent - davidn@blaze.net.au.
1996-10-15 20:27:07 +00:00
Bruce Evans
c20b324bb6 Put I*86_CPU defines in opt_cpu.h. 1996-10-09 19:47:44 +00:00
Bruce Evans
14f3567a32 Don't claim the console when the driver is disabled. The getc/putc
part of the console driver usually works when the driver is disabled,
but the normal read/write part doesn't (it caused a panic).
1996-10-09 15:24:21 +00:00
Jordan K. Hubbard
0c8c5f852a scresume erroneously used before declared. Move the function
rather than add another APM ifdef just for the forward decl.
[Boy, sure a lot of warnings in here!]
1996-10-03 00:42:27 +00:00
Søren Schmidt
4a8aeffeb2 Fixed the userconfig problem (and one with ddb as well).
The rudimentary support for a splash page is there, and works, it
just needs a splash page...
1996-10-02 22:00:38 +00:00
Søren Schmidt
d58801b2ee Fixed the "missing updates" reported by ache.
Moved a little closer to having a splash page capability.
1996-10-01 23:24:09 +00:00
Jordan K. Hubbard
10dce6c9f3 #ifdef another instance of toggle_splash_screen() which Soren missed. 1996-10-01 07:38:14 +00:00