Commit Graph

185 Commits

Author SHA1 Message Date
Nate Williams
e7e437dbfa - Do a bunch of gratuitous changes intended to make the code easier to
follow.
 * Rename/reorder all of the pccard structures, change many of the member
   names to be descriptive, and follow more closely other 'bus' drivers
   naming schemes.
 * Rename a bunch of parameter and local variable names to be more
   consistant in the code.
 * Renamed the PCCARD 'crd' device to be the 'card' device
 * KNF and make the code consistant where it was obvious.
 * ifdef'd out some unused code
1997-10-26 04:36:24 +00:00
Poul-Henning Kamp
a1c995b626 Last major round (Unless Bruce thinks of somthing :-) of malloc changes.
Distribute all but the most fundamental malloc types.  This time I also
remembered the trick to making things static:  Put "static" in front of
them.

A couple of finer points by:	bde
1997-10-12 20:26:33 +00:00
Justin T. Gibbs
02a199102d aha1542.c aic6360.c cy.c fd.c ft.c
if_ie.c if_wl.c if_zp.c isa.c isa_device.h
labpc.c mcd.c ncr5380.c scd.c seagate.c si.c
sio.c tw.c ultra14f.c wcd.c wd.c:

	Update for changes in the callout interface.

apic_vector.s icu_vector.s ipl.s ipl_funcs.c:

	Add CAM software/hardware interrupt support.
1997-09-21 21:41:49 +00:00
John-Mark Gurney
6a796ce0a1 teach sio how to attach to isa PnP cards. This is mainly for use with
internal modems.  Currently detects a USR modem, and a couple Supra
modems...  vendor id's for sio capabile cards welcomed...

document new option EXTRA_SIO that will increase sio's internal data
structures to support X more serial ports...  these are used by the
PnP part of sio for attaching...  If you don't have it specified, it
will default to 2...  This is defaulted to 0 if you don't have PnP
compiled into your kernel...

also document that if you set the PnP flags (pnp x flags y) to 0x1 that
the modem will be refused to be recognized by the sio driver... this
is for people that want the traditional isa driver to probe and attach
the modem... (for keeping legacy sio numbering)
1997-09-19 15:25:49 +00:00
Peter Wemm
35b8b2ddab Update select -> poll in drivers. 1997-09-14 03:19:42 +00:00
Steve Passe
1de995bb1f General cleanup of the sub-system locking macros.
Eliminated the RECURSIVE_MPINTRLOCK.
clock.c and microtime use clock_lock.
sio.c and cy.c use com_lock.

Suggestions by:	Bruce Evans <bde@zeta.org.au>
1997-09-01 07:45:37 +00:00
Steve Passe
adc91a77c1 Created a private simple_lock to control accesses to com data structs
and hardware.
There is now another simple_lock around clock data/hardware accesses in
clock.c and microtime.s.  It is my belief that this is the only area
sio/cy might stumble into during an unblocked INTerrupt.  Thus I separated
the sio/cy code from the generic disable_intr()/enable_intr() routines.

Controlled by smptests.h: USE_COMLOCK, ON by default.
1997-08-31 03:17:18 +00:00
Steve Passe
78292efeef Another round of lock pushdown.
Add a simplelock to deal with disable_intr()/enable_intr() as used in UP kernel.
UP kernel expects that this is enough to guarantee exclusive access to
regions of code bracketed by these 2 functions.
Add a simplelock to bracket clock accesses in clock.c: clock_lock.

Help from:	Bruce Evans <bde@zeta.org.au>
1997-08-30 08:08:10 +00:00
Steve Passe
f2cf811ca6 Fixed a warning about undefined isa_irq_pending(). (UP kernel only) 1997-08-21 06:16:12 +00:00
Steve Passe
b3e4e390f6 Moved the COM_LOCK and COM_UNLOCK macros to machine/param.h. 1997-08-21 05:47:25 +00:00
Steve Passe
7b185ef809 Preperation for moving cpl into critical region access.
Several new fine-grained locks.
New FAST_INTR() methods:
 - separate simplelock for FAST_INTR, no more giant lock.
 - FAST_INTR()s no longer checks ipending on way out of ISR.
sio made MP-safe (I hope).
1997-08-20 05:25:48 +00:00
Steve Passe
9d37772f68 Added include of intr_machdep.h to eliminate compiler warning for APIC_IO. 1997-08-04 19:12:54 +00:00
Bruce Evans
f71d35e402 Removed unused #includes. 1997-07-20 14:10:18 +00:00
John Dyson
955bc15107 Add some support for the 16650 type UARTS. 1997-07-17 06:01:15 +00:00
Paul Traina
5ea6cb03f3 Bring back CONSPEED as a last-ditch default if you can't change the speed
any other way.

Requested by: dfr
1997-06-04 16:25:15 +00:00
Paul Traina
2334749d02 If the boot blocks were using the serial port, read the system console
speed using the boot blocks, instead of a hardcoded value stuck in the
kernel.  This way, you can have systems using the same kernel but different
console speeds.

Add a sysctl entry for changing the system console speed.
Lock the user tty speed to match the system console speed.

Nuke CONSPEED.
Reviewed by:	bde
1997-06-04 04:52:40 +00:00
Poul-Henning Kamp
55d2795997 I've given up on the idea of sizing FIFO's. You can set it with a flag
value now, if you know that you have a fifo deeper than 16.
1997-06-01 20:42:01 +00:00
Peter Wemm
7a14de6260 No longer need opt_smp.h here 1997-05-29 05:00:35 +00:00
Poul-Henning Kamp
468d825d86 Whoops, missed a zero there. Flags 0x10000 it is. 1997-05-18 21:22:11 +00:00
Poul-Henning Kamp
e12ca851a6 Flags 0x1000 on sio now disables the dreaded test#3.
PR:		3395
1997-05-18 21:19:04 +00:00
Poul-Henning Kamp
8463cf03a9 Detect various supersets of 16550A based on fifo depth.
PR:		i386/3523
Reviewed by:	phk
Submitted by:	vak@cronyx.ru
1997-05-18 20:53:52 +00:00
Peter Wemm
477a642cee Man the liferafts! Here comes the long awaited SMP -> -current merge!
There are various options documented in i386/conf/LINT, there is more to
come over the next few days.

The kernel should run pretty much "as before" without the options to
activate SMP mode.

There are a handful of known "loose ends" that need to be fixed, but
have been put off since the SMP kernel is in a moderately good condition
at the moment.

This commit is the result of the tinkering and testing over the last 14
months by many people.  A special thanks to Steve Passe for implementing
the APIC code!
1997-04-26 11:46:25 +00:00
Bruce Evans
63e32a69f2 Don't call timeout() for DTR wakeup or busy check if the relevant timeout
is already active.  This fixes "timeout table full" panics under 100%
interrupt load and other weird conditions.
1997-04-18 18:28:09 +00:00
Bruce Evans
de09b61a0c Use device flags instead of options for serial console configuration
(see LINT).  There is a new low-level console type that is more suitable
for use with gdb-remote.

Fixed setting of speed at probe time for the serial console (if any).

Reviewed by:	dfr
1997-04-05 13:11:27 +00:00
Bruce Evans
fce002fdef Don't include <sys/ioctl.h> in the kernel. Stage 1: don't include
it when it is not used.  In most cases, the reasons for including it
went away when the special ioctl headers became self-sufficient.
1997-03-24 11:25:10 +00:00
Bruce Evans
3ac4d1ef0c Don't #include <sys/fcntl.h> in <sys/file.h> if KERNEL is defined.
Fixed everything that depended on getting fcntl.h stuff from the wrong
place.  Most things don't depend on file.h stuff at all.
1997-03-23 03:37:54 +00:00
Peter Wemm
6875d25465 Back out part 1 of the MCFH that changed $Id$ to $FreeBSD$. We are not
ready for it yet.
1997-02-22 09:48:43 +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
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
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
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
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
Paul Traina
39daae723d add in CONSPEED option which controls console serial port speed 1996-11-02 02:26:06 +00:00
Bruce Evans
92d0aa20dc Work around UMC8669F and Startech UART bugs by not writing to the
divisor latch registers if the registers wouldn't change.

Use the default console cfcr setting while setting the divisor
latch registers for console i/o.  Input may be messed up by
transiently changing the cfcr.

Use a usual cfcr setting while setting the divisor latch registers
in the probe.  This shouldn't matter, but this is not the place to
test the UART's handling of 5 bit words.

Removed a stale devfs comment.
1996-09-30 12:22:27 +00:00
Bruce Evans
daed6ffd24 Changed cncheckc() interface so that it is 8-bit clean - return -1
instead of 0 if there is no input.

syscons.c:
Added missing spl locking in sccncheckc().  Return the same value as
sccngetc() would.  It is wrong for sccngetc() to return non-ASCII, but
stripping the non-ASCII bits doesn't help.
1996-09-14 04:27:46 +00:00
Poul-Henning Kamp
bfbb029d87 Remove devconf, it never grew up to be of any use. 1996-09-06 23:09:20 +00:00
Julian Elischer
75d050aeaa some internal modems need LOTS of time to generate an interrupt
on demand.. increase DELAY from 1000 uS to 10000uS
1996-07-17 22:07:23 +00:00
Bruce Evans
7d64a7fe80 Added support for TIOCDCDTIMESTAMP (enable/get timestamp of last DCD rise).
Original version by John Hay.

Simplified timestamp code by reading the time exactly when necessary.
This may slow down the interrupt handler with extra calls to microtime(),
but only in bad configurations - the input fifo should normally be
disabled if timestamps on input are being used, since otherwise the
timestamp won't be precisely associated with any particular input event.
The interrupt handler remains slowed down by one test and branch for
each input (and now DCD change) event - avoiding this is not practical
yet.

The simplifications also fixed:
- timestamps for input sometimes being clobbered by output and modem
  status interrupts.
- valid timestamps not being available unless the port is configured with
  vector siointrts.  siointrts no longer exists.
- compiler warnings about siointr* in some configurations.

Simplified timestamp and probe code by depending on recent changes in
microtime() and DELAY() to preserve the interrupt enable flag.
1996-06-17 14:23:39 +00:00
Poul-Henning Kamp
a8c5fef5e6 KGDB is dead. It may come back one day if somebody does it. 1996-05-02 09:34:51 +00:00
Nate Williams
e12ac36c96 Format the already applied PCCARD additions to use KNF form. No
functional changes.
1996-04-23 18:36:56 +00:00
Bruce Evans
aef18d6ed7 Another try: fixed bogus change of the fifo settings for the non-speed of 0.
rev.1.30 incorrectly changed the behaviour from always disabling the fifo
to always enabling it.
1996-04-13 14:55:18 +00:00
Bruce Evans
3745f80a48 Moved AUTO_EOI_[12] and most sio and pcvt options out of the makefile. 1996-04-11 21:18:49 +00:00
Marc G. Fournier
6d4bca5b8a removed RS_IBUFSIZE #ifndef - have been informed it was a bad idea 1996-04-10 18:09:58 +00:00
Marc G. Fournier
f4f119017f Placed an #ifndef around RS_IBUFSIZE so that it can be changed in the
config file ... PR#528 is reportly fixed by adding 'options RS_IBUFSIZE=1024'
to the config file
1996-04-10 04:18:36 +00:00
Bruce Evans
6c4591a089 Fixed ownerships of callout devices. 1996-03-27 20:03:32 +00:00