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1907 Commits

Author SHA1 Message Date
mycroft
1e5cd9212d (Almost) allow sector sizes other than 512 bytes. Reduce some expensive operations. 1995-01-13 12:30:59 +00:00
mycroft
7bb384b66c Avoid some repeated multiplications. 1995-01-13 11:14:27 +00:00
mycroft
7650bd97fc Always boundary check I/O. 1995-01-13 10:46:32 +00:00
mycroft
c541b630fc Add a sc_bcount, similar to wd.c. 1995-01-13 10:35:58 +00:00
mycroft
a0303980c2 Calculate b_cylin correctly for different block sizes. 1995-01-13 10:30:08 +00:00
mycroft
0033c975c6 Fix another bug in the DMA code. 1995-01-13 10:22:58 +00:00
mycroft
fda9731199 Further cleanup. Back out part of the previous; it's the device's 
responsibility to check for partial blocks.
 1995-01-13 09:57:39 +00:00
mycroft
4abdb375bc Minor rearrangement. 1995-01-13 09:40:21 +00:00
mycroft
c2bc310a37 Change the way sc_skip is used. Fix a bug in the (incomplete) DMA code. Add a 
new sc_blkno (which will be useful later).
 1995-01-13 08:58:16 +00:00
mycroft
da7d74e3dc Fix typos. 1995-01-13 08:37:25 +00:00
mycroft
1f758ca55c Fix typo. 1995-01-13 08:31:46 +00:00
mycroft
ca84c10497 Only allow opening one density at a time. 1995-01-13 08:29:25 +00:00
mycroft
04a1fc8816 Change the way b_cylin and sc_track (now sc_cylin) are used slightly. 
If transfer goes past end of disk, truncate it.
 1995-01-13 07:57:01 +00:00
mycroft
dc63598a7f Clean up bounds_check_with_label(). Round request to sector size in label, 
and return EINVAL if bcount is less than the sector size or negative.
 1995-01-13 06:51:38 +00:00
mycroft
8ba4c5fca1 Add boca, makeoptions. 1995-01-11 20:59:50 +00:00
pk
0a22930d97 Explicitly test the RXRDY status bit on incoming characters. 1995-01-11 09:56:40 +00:00
jtc
d7a8b2964f Only define sig_atomic_t when _ANSI_SOURCE is defined. 1995-01-10 19:01:00 +00:00
ws
3e0b9f0694 Implement symbolic links (plus a minor fix for %x printing) 1995-01-09 22:13:10 +00:00
mycroft
7af86b7eb7 Copy physlock code from SPARC port, and some minor cleaning. 1995-01-09 09:13:09 +00:00
christos
b006bf7e68 Added missing forward declaration 1995-01-09 01:05:24 +00:00
christos
e1c97cde06 New file for signal handling and {g,s}etcontext(). 1995-01-08 21:23:31 +00:00
christos
7c056bd334 New svr4_machdep.c for svr4 signal handling. 
Made check_selectors global, to be used by the
svr4 code.
Removed unused variable.
Modified sendsig() to call the svr4_sendsig().
 1995-01-08 21:22:16 +00:00
christos
66cc79dbc4 New svr4_machdep.c 1995-01-08 21:18:48 +00:00
mycroft
e06bc8c13e Don't issue a controller self-test... 1995-01-07 22:48:29 +00:00
mycroft
06b0414491 Actually, do the ID reset in elink_reset(). 1995-01-07 21:37:54 +00:00
mycroft
37e16c5747 Don't print line numbers in most of the diagnostics. 1995-01-07 06:49:35 +00:00
mycroft
d4f91d51a9 Fix a race condition between normal I/O and wd_get_parms(). 1995-01-07 03:07:22 +00:00
mycroft
7f61bec5cd Cosmetic changes, to look more like the new esp.c will. 1995-01-07 01:51:07 +00:00
mycroft
ba288b4ae1 Do the reset in the individual drivers, not in elink_idseq(). 1995-01-06 21:41:26 +00:00
mycroft
290ed068ab Remove many of the `static's, to facilitate debugging. 1995-01-04 09:02:32 +00:00
mycroft
6125e1b551 Fix oversight in previous. 1995-01-04 00:47:53 +00:00
mycroft
9e499d41b3 \ 
These files have been 99% rewritten from the original ast driver.  Add an
appropriate copyright notice.
 1995-01-03 22:38:54 +00:00
mycroft
0349c5b9e0 Add a multiplexer for BOCA serial boards. 1995-01-03 22:26:36 +00:00
hpeyerl
09834a5bd3 This is correct according to the docs on both cards. 
Doesn't seem to make any difference to the known problems though.
 1995-01-03 05:04:04 +00:00
mycroft
a987158712 Add interrupt sharing types. 1995-01-03 03:56:09 +00:00
mycroft
b6c8a9a4e9 Update intr_establish() prototype. 1995-01-03 03:14:35 +00:00
mycroft
93a0c4a258 Add interrupt sharing types. 1995-01-03 01:42:11 +00:00
mycroft
b5cf1b5ddd Add interrupt sharing types. 1995-01-03 01:30:14 +00:00
mycroft
d16dcced99 Add interrupt sharing types. 1995-01-03 01:19:19 +00:00
mycroft
326830c1ba Use direct config for subdevices. 1995-01-02 22:27:46 +00:00
mycroft
e148dc7a64 Move setting of sc_maddr so soft config works. 1995-01-02 22:01:05 +00:00
mycroft
a774fa6fe5 Use soft configuration when possible. 1995-01-02 21:57:04 +00:00
mycroft
3a967fcbb6 More cleanup. 1995-01-02 21:27:27 +00:00
mycroft
72dec3b548 Various cleanup. 1995-01-02 20:54:01 +00:00
mycroft
3a74796b3e Need isareg.h. 1995-01-02 20:39:35 +00:00
mycroft
894bb9145f Use soft configuration where possible. 1995-01-02 20:32:55 +00:00
mycroft
2d5b04744a Don't assume ia_maddr is in the hole. 1995-01-02 20:06:29 +00:00
mycroft
76b0b02cc3 Fix non-serious typo. 1994-12-31 05:34:00 +00:00
cgd
7b8535b554 do the right thing with strange-sized varargs objects. 1994-12-28 22:45:42 +00:00
mycroft
ff315ba9a4 Don't turn on the SCE bit in the enable register. 1994-12-28 19:45:41 +00:00
mycroft
8fd135209c Numerous changes. Many bugs fixed, better autoconfig, a few new features. 1994-12-28 19:42:47 +00:00
hpeyerl
262b425866 temporary warning until I get new docs. 1994-12-28 16:47:50 +00:00
cgd
e5049f4d59 make the definition of _JBLEN mach. dep. header-dependent. 1994-12-20 10:36:27 +00:00
mycroft
ce06e718ad Fix flags to isa_dmastart(). 1994-12-17 18:45:11 +00:00
mycroft
ab77439747 Clean up constab stuff a little. 1994-12-16 04:19:13 +00:00
mycroft
52d8d259fd Add a bt. 1994-12-15 16:14:50 +00:00
mycroft
a7393f95f3 Remove fp arg to d_open. 1994-12-14 18:52:32 +00:00
mycroft
ca65f2ce5d Remove dkbad.h. 1994-12-14 15:17:22 +00:00
mycroft
aeda11fc40 Remove the d_subtype frobnication. It was clearly broken, and not very 
useful.
 1994-12-13 15:31:54 +00:00
mycroft
05e78f1424 Add empty pcstop(). 1994-12-13 13:42:53 +00:00
mycroft
e694663b46 Make the diagnostics less cryptic. 1994-12-12 04:43:51 +00:00
mycroft
3e4a358e28 Patch from Thomas Eberhardt to make PCnet-32 chips work. 1994-12-12 04:39:52 +00:00
mycroft
995e676d90 Add `flags 1' to ast subdevices, as pointed out by John Kohl. 1994-12-11 16:20:48 +00:00
christos
303841c92e 3c509 fixes to avoid adapter getting stuck in high traffic conditions. 
I don't particularly like the fixes, but at least now the 3c509 never
gets stuck. On the other hand, performance still sucks in some cases.
 1994-12-10 14:52:02 +00:00
mycroft
793e542f89 Fix format of attach message. 1994-12-10 05:55:26 +00:00
mycroft
1acd9ddb90 Speed up FPU task switching some more. 1994-12-10 00:28:18 +00:00
mycroft
957694159f Correct a couple of things... 1994-12-08 20:55:05 +00:00
glass
2227b302cf update 1994-12-06 06:59:01 +00:00
mycroft
8d87220928 Don't ignore the exit status of ld(1). 1994-12-06 06:07:39 +00:00
mycroft
6d6a24357a Compile with -g. 1994-12-06 05:02:26 +00:00
mycroft
1e0e6d72c9 Conditionalize the audio driver on NAUDIO, not NSB, now that the former 
exists.
 1994-12-05 05:45:38 +00:00
mycroft
e92233c07c Deal correctly with esym being 0. 1994-12-04 07:37:27 +00:00
mycroft
c3b944cb15 Use correct select routine for audio. 1994-12-04 06:32:39 +00:00
mycroft
8e6f464987 fdclose -> Fdclose 1994-12-03 15:17:06 +00:00
mycroft
5c3d80060d Reset the entire PSL, not just part of it. 1994-12-03 14:55:51 +00:00
mycroft
73afee1973 We don't need the extra space to preserve the BIOS variables any more. 1994-12-02 03:02:49 +00:00
mycroft
8fd1f92ae7 Don't futz with the cursor shape unless we really, really need to. 1994-12-01 11:12:04 +00:00
mycroft
211b002017 Ignore ERR during diagnostics. 1994-12-01 10:45:26 +00:00
mycroft
434d451672 Adjust dump calculation to avoid sign problems. 1994-12-01 09:53:38 +00:00
mycroft
6686f7f263 Rework detection a bit, and check for the Pentium fdiv bug. 1994-11-30 04:42:07 +00:00
mycroft
c72f58d401 Don't need to turn on emulation when npx not present; we leave it off always. 1994-11-30 04:26:06 +00:00
mycroft
867ebf1d84 Clear the controller active flag after a timeout. 1994-11-30 02:32:03 +00:00
mycroft
5584ff927f Don't stall the queue on CHECK SENSE if we get a reselect while selecting. 1994-11-30 02:08:01 +00:00
mycroft
639a64de08 Fix a null pointer reference. 1994-11-29 21:35:13 +00:00
mycroft
51bed8d804 Add an assertion mechanism to check for more abnormal conditions. 1994-11-29 21:29:56 +00:00
mycroft
58cb5339d6 For consistency... 1994-11-29 20:57:28 +00:00
mycroft
41b26a6dfd Handle BUS FREE phase a little differently, to get better error detection. Other 
cleanup.
 1994-11-29 20:08:27 +00:00
mycroft
bb90feebac Disable debugging breakpoints by default. 1994-11-29 17:56:49 +00:00
mycroft
5ac2484d95 * Redo most of the message and phase state machines. Multiple pending 
message outs should now work correctly (including retransmissions).
Multiple messages ins should be more efficient.  Missing REQ after
reselection phase should now (correctly) cause a wait with ENREQINIT
set.

* Abstract out the reselection out sequence, and use it directly to
get sense info.  (This is somewhat faster than the generic done/sched
sequence.)

* If there are no ACBs available, wait interruptibly for one.

* Leave the interrupt registers alone during message in/out; just
watch for phase change.  Don't (incorrectly) reenable interrupts
during data in/out; defer that to aicintr().

* Handle command pointer per SCSI 2 spec.

* Other minor coding improvements.
 1994-11-29 17:50:39 +00:00
christos
6a2c060851 fix unary plus typo :-) 1994-11-25 23:19:03 +00:00
mycroft
cba32aa25f Minor update for new autoconfig. 1994-11-25 08:17:21 +00:00
mycroft
0649f37219 Officially credit Onno. 1994-11-23 22:00:08 +00:00
mycroft
8bacafc13c Clean up deleted files. 1994-11-23 09:10:13 +00:00
mycroft
2058abab15 Forgot to commit this as part of the LBA changes. 1994-11-23 07:56:52 +00:00
mycroft
cc44b4600c There's no point in bothering to unlock what we didn't lock. 1994-11-23 07:54:15 +00:00
mycroft
6dda55519e Fix an outdated comment. 1994-11-23 03:11:01 +00:00
mycroft
a3fc466734 Use logical block addressing if available. Be a little more careful about 
maintaining timeouts.  Clean up wddump() a bit.
 1994-11-23 01:35:43 +00:00
mycroft
525fc36e19 Implement 32-bit reads and writes, but for now assume 16-bit mode. 1994-11-22 10:20:16 +00:00
mycroft
3a99ddf172 Add a missing newline in some error messages. 1994-11-22 09:36:56 +00:00
mycroft
db3bde9525 Implement EIDE multi-sector PIO and DMA modes, based on code from Onno van 
der Linden.  Also, various structural cleanup, and fix two bogons that crept
in, and remove all of the old clustering nonsense.
 1994-11-22 09:33:59 +00:00
mycroft
1e01855683 Minor fix to debugging code. 1994-11-22 05:50:48 +00:00
mycroft
85826f0fbe Fudge a couple more fields for ancient disks. 1994-11-22 05:39:16 +00:00
mycroft
e1a7bac628 Change some constant names, etc., to better match the ATA spec. 1994-11-22 05:34:49 +00:00
mycroft
95edd299b0 Add still more locking. 1994-11-22 03:23:49 +00:00
mycroft
dcb90851c2 Minor change. 1994-11-22 01:21:11 +00:00
mycroft
5bd4115690 Add some missing locking, and some general cleanup. 1994-11-20 22:36:43 +00:00
mycroft
d2d4dc4654 Use immediate constants for port numbers < 0x100. 1994-11-20 21:36:44 +00:00
christos
f63115591a Included <sys/cdefs.h> since this file is now using __signed. 
It broke non gnu compilers.
 1994-11-20 18:50:18 +00:00
mycroft
9a3840f2f0 Stylistic changes. 1994-11-18 22:25:12 +00:00
mycroft
79a1309e3c Remove Xwild; it's no longer used. 1994-11-18 22:22:40 +00:00
mycroft
e075f8c13d Convert port, IRQ, and DRQ numbers to ints. 1994-11-18 22:18:35 +00:00
mycroft
61800cfa25 Convert port, IRQ, and DRQ numbers to ints. 1994-11-18 22:07:32 +00:00
mycroft
35cdd801e6 Convert port, IRQ, and DRQ numbers to ints. 1994-11-18 21:57:40 +00:00
christos
fc8e694056 Fixed error svr4 error code mapping; my old attempt was a noop. 1994-11-16 20:14:42 +00:00
mycroft
a2727ec558 Check IRQ 9, not IRQ 2. 1994-11-15 00:00:24 +00:00
mycroft
b341f7a8c0 Map IRQ 2 to IRQ 9. 1994-11-14 23:58:56 +00:00
mycroft
e91e570cfd Shorten the Cyrix handling code a little. 1994-11-14 23:35:48 +00:00
mycroft
423bfa0764 Garbage collect unused variable. 1994-11-14 08:53:06 +00:00
christos
a96cb110a3 Added new svr4 files 1994-11-14 05:54:30 +00:00
christos
55845b1901 changed open prototype in conf.c; added bsd->svr4 errno mapping in trap.c 1994-11-14 05:53:48 +00:00
mycroft
1c5ac2e88c pcb.h requires segments.h now. 1994-11-08 23:09:21 +00:00
mycroft
f875a9efe6 Allocate pv_pages differently. 1994-11-08 01:17:19 +00:00
mycroft
d254e95680 Garbage collect some variables which are no longer used. 1994-11-07 10:19:28 +00:00
mycroft
21e911d911 Update for new autoconfig. 1994-11-07 09:03:48 +00:00
mycroft
cfae52f542 It's legitimate, if foolish, to mask SIGCONT. 1994-11-07 05:57:28 +00:00
mycroft
297c06de67 Comment previous change. 1994-11-07 05:32:50 +00:00
mycroft
86a2079aef When restarting syscalls, make sure we adjust the PC by the correct amount 
depending on what instruction we used to enter the kernel.  Push the
instruction length into tf_err on entry.
 1994-11-07 05:26:08 +00:00
mycroft
ed993b3930 Two trivial optimizations. 1994-11-07 05:09:04 +00:00
mycroft
d5f99262a9 Since npxdna() and npxsave() are only ever called at spl0 now, we can get rid 
of all the overhead of frobbing the IDT, and just use a simple flag to tell
npxintr() to ignore interrupts.  This allows lots of code reduction.
Also, update some comments and add some DIAGNOSTIC code to detect is these
assumptions ever become wrong.
 1994-11-07 03:39:37 +00:00
mycroft
5133a6cfd7 Only save the FPU state if somebody else needs the FPU, or when forking. 1994-11-06 23:43:17 +00:00
mycroft
f3ef31e4aa Oops; forgot to adjust stack offset. 1994-11-06 22:05:08 +00:00
mycroft
37863af7bb Forgot two underscores. 1994-11-06 21:51:47 +00:00
mycroft
58b3010e87 Use %eax slightly more effectively in cpu_switch(). 1994-11-06 20:51:46 +00:00
mycroft
915336b97c Approximate the divide by multiplying by 3433/4096. This is faster than 
the previous code, and more accurate.  Also avoid saving and restoring
registers.
(The multiplication algorithm was generated by GCC.)
 1994-11-06 20:33:35 +00:00
mycroft
ddb6e42460 Actually, don't bother checking p == 0 at all. 1994-11-06 20:30:09 +00:00
mycroft
5cf38ebdb4 The case of curproc == 0 `can't happen' unless we're in the idle loop, so 
allow it to panic by way of a reference to 0 in other cases.  Explicitly test
for p == 0 in the specific cases where it's needed, and only calculate pcb if
needed.
 1994-11-06 20:28:57 +00:00
mycroft
9a84611b06 Move the spl0() from the idle loop to the top of cpu_switch(). (This also 
avoids needing to call spllower() below.)  Set curproc immediately after
removing the new process for the run queue, before allowing interrupts again,
for the benefit of schedcpu().
 1994-11-06 20:21:29 +00:00
mycroft
205d425f2f As pointed out by Bruce, splsoftclock() needs to process pending interrupts 
when lowering the priority.  Do this by simply calling splx().  For the
benefit of NFS (for now), modify splx() to return a value so that
splsoftclock() does.  This work is optimized out for every use of splx()
that ignores the value, so it only affects relevant code.
Also, clean up this file a little.
 1994-11-06 01:37:47 +00:00
mycroft
c2191a2ad0 Fully prototype ssdtosd() and sdtossd(). 1994-11-05 03:20:36 +00:00
mycroft
34c4570d61 Only use ssdtosd() when creating, expanding, or copying the LDT. Keep a copy 
of the result in the PCB so it can be loaded quickly on context switches.
 1994-11-05 03:17:33 +00:00
mycroft
867ac5e15f Add sdtossd() by HOSOKAWA Tatsumi, and a C version of ssdtosd() by me. 1994-11-05 02:47:02 +00:00
mycroft
600aa2c5f8 Trivial optimizations. Also, make sure we get the overflow correct if 
called at spl >= clock.
 1994-11-05 02:16:26 +00:00
mycroft
2a9b6f7959 Fix stupid bug in last change. 1994-11-04 23:30:15 +00:00
mycroft
4ec6774e12 Add a simplified version of wdcommand() that can be used in some cases. 
Avoid needing a wd_softc inside wdprobe().
 1994-11-04 23:18:06 +00:00
mycroft
38420d7db1 Don't need cd_indirect. 1994-11-04 22:51:59 +00:00
mycroft
3df6bf0c0e Trivial stylistic changes. 1994-11-04 21:32:23 +00:00
mycroft
098c6e36e6 Various cleanup. In particular, be much more careful with buffer flags. 1994-11-04 21:19:48 +00:00
mycroft
e11ffbc64b Fix a call to math_abort(). 1994-11-04 20:47:07 +00:00
mycroft
854d8d96dc Rearrange slightly. 1994-11-04 19:25:34 +00:00
mycroft
cfc4633919 Remove outdated comment. 1994-11-04 19:17:47 +00:00