- new lpt driver, contributed by Steve Woodford <steve@mctavish.demon.co.uk>
- added 1.1 and 1.2 compat to VME147 config file
This commit is contained in:
chuck
parent
04550d40b6
commit
cabd6ddfa0
|
|
@ -1,4 +1,4 @@
|
|||
# $NetBSD: VME147,v 1.9 1996/11/08 22:40:51 chuck Exp $
|
||||
# $NetBSD: VME147,v 1.10 1996/11/09 03:52:53 chuck Exp $
|
||||
|
||||
machine mvme68k m68k
|
||||
|
||||
|
|
@ -33,7 +33,7 @@ options TCP_COMPAT_42 # compatibility with 4.2BSD TCP/IP
|
|||
#options EON
|
||||
|
||||
options EXEC_AOUT,EXEC_SCRIPT
|
||||
options COMPAT_09, COMPAT_10
|
||||
options COMPAT_09, COMPAT_10, COMPAT_11, COMPAT_12
|
||||
options COMPAT_SUNOS
|
||||
#options COMPAT_M68K4K # compatibility with NetBSD/m68k4k binaries
|
||||
|
||||
|
|
@ -60,6 +60,7 @@ zstty* at zsc? channel ?
|
|||
clock0 at pcc? ipl 5
|
||||
le0 at pcc? ipl 3
|
||||
wdsc0 at pcc? ipl 2
|
||||
lpt0 at pcc? ipl 1
|
||||
vmechip0 at pcc?
|
||||
|
||||
vmes0 at vmechip?
|
||||
|
|
|
|||
|
|
@ -1,4 +1,4 @@
|
|||
# $NetBSD: files.mvme68k,v 1.8 1996/08/12 00:16:25 mycroft Exp $
|
||||
# $NetBSD: files.mvme68k,v 1.9 1996/11/09 03:52:54 chuck Exp $
|
||||
|
||||
# config file for mvme68k
|
||||
|
||||
|
|
@ -28,6 +28,11 @@ device zstty: tty
|
|||
attach zstty at zsc
|
||||
file dev/ic/z8530tty.c zstty needs-flag
|
||||
|
||||
# printer
|
||||
device lpt
|
||||
attach lpt at pcc with lpt_pcc
|
||||
file arch/mvme68k/dev/lpt.c lpt needs-flag
|
||||
|
||||
# device defined in sys/conf/files
|
||||
attach le at pcc with le_pcc
|
||||
file arch/mvme68k/dev/if_le.c le
|
||||
|
|
|
|||
|
|
@ -0,0 +1,496 @@
|
|||
/* $NetBSD: lpt.c,v 1.1 1996/11/09 03:52:51 chuck Exp $ */
|
||||
|
||||
/*
|
||||
* Copyright (c) 1996 Steve Woodford
|
||||
* Copyright (c) 1993, 1994 Charles Hannum.
|
||||
* Copyright (c) 1990 William F. Jolitz, TeleMuse
|
||||
* All rights reserved.
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. All advertising materials mentioning features or use of this software
|
||||
* must display the following acknowledgement:
|
||||
* This software is a component of "386BSD" developed by
|
||||
* William F. Jolitz, TeleMuse.
|
||||
* 4. Neither the name of the developer nor the name "386BSD"
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS A COMPONENT OF 386BSD DEVELOPED BY WILLIAM F. JOLITZ
|
||||
* AND IS INTENDED FOR RESEARCH AND EDUCATIONAL PURPOSES ONLY. THIS
|
||||
* SOFTWARE SHOULD NOT BE CONSIDERED TO BE A COMMERCIAL PRODUCT.
|
||||
* THE DEVELOPER URGES THAT USERS WHO REQUIRE A COMMERCIAL PRODUCT
|
||||
* NOT MAKE USE OF THIS WORK.
|
||||
*
|
||||
* FOR USERS WHO WISH TO UNDERSTAND THE 386BSD SYSTEM DEVELOPED
|
||||
* BY WILLIAM F. JOLITZ, WE RECOMMEND THE USER STUDY WRITTEN
|
||||
* REFERENCES SUCH AS THE "PORTING UNIX TO THE 386" SERIES
|
||||
* (BEGINNING JANUARY 1991 "DR. DOBBS JOURNAL", USA AND BEGINNING
|
||||
* JUNE 1991 "UNIX MAGAZIN", GERMANY) BY WILLIAM F. JOLITZ AND
|
||||
* LYNNE GREER JOLITZ, AS WELL AS OTHER BOOKS ON UNIX AND THE
|
||||
* ON-LINE 386BSD USER MANUAL BEFORE USE. A BOOK DISCUSSING THE INTERNALS
|
||||
* OF 386BSD ENTITLED "386BSD FROM THE INSIDE OUT" WILL BE AVAILABLE LATE 1992.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE DEVELOPER ``AS IS'' AND
|
||||
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
|
||||
* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
|
||||
* ARE DISCLAIMED. IN NO EVENT SHALL THE DEVELOPER BE LIABLE
|
||||
* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
|
||||
* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
|
||||
* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
|
||||
* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
|
||||
* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
|
||||
* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
|
||||
* SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
/*
|
||||
* Device Driver for the MVME147's parallel printer port
|
||||
* Based mostly on the AT parallel port driver by Charles Hannum and
|
||||
* William F. Jolitz.
|
||||
* Some additional code is based on the NetBSD/atari parallel port
|
||||
* driver, by Leo Weppelman.
|
||||
*/
|
||||
|
||||
#include <sys/param.h>
|
||||
#include <sys/systm.h>
|
||||
#include <sys/proc.h>
|
||||
#include <sys/user.h>
|
||||
#include <sys/buf.h>
|
||||
#include <sys/kernel.h>
|
||||
#include <sys/ioctl.h>
|
||||
#include <sys/uio.h>
|
||||
#include <sys/device.h>
|
||||
#include <sys/conf.h>
|
||||
#include <sys/syslog.h>
|
||||
|
||||
#include <machine/cpu.h>
|
||||
|
||||
#include <mvme68k/dev/lptreg.h>
|
||||
#include <mvme68k/dev/pccreg.h>
|
||||
#include <mvme68k/dev/pccvar.h>
|
||||
|
||||
#define TIMEOUT hz*16 /* wait up to 16 seconds for a ready */
|
||||
#define STEP hz/4
|
||||
|
||||
#define LPTPRI (PZERO+8)
|
||||
#define LPT_BSIZE 1024
|
||||
|
||||
#if !defined(DEBUG) || !defined(notdef)
|
||||
#define LPRINTF(a)
|
||||
#else
|
||||
#define LPRINTF if (lptdebug) printf a
|
||||
int lptdebug = 1;
|
||||
#endif
|
||||
|
||||
struct lpt_softc {
|
||||
struct device sc_dev;
|
||||
union lpt_regs *sc_regs;
|
||||
size_t sc_count;
|
||||
struct buf *sc_inbuf;
|
||||
u_char *sc_cp;
|
||||
int sc_spinmax;
|
||||
int sc_ipl;
|
||||
u_char sc_state;
|
||||
#define LPT_OPEN 0x01 /* device is open */
|
||||
#define LPT_OBUSY 0x02 /* printer is busy doing output */
|
||||
#define LPT_INIT 0x04 /* waiting to initialize for open */
|
||||
u_char sc_flags;
|
||||
#define LPT_FAST_STROBE 0x10 /* Select 1.6uS strobe pulse */
|
||||
#define LPT_AUTOLF 0x20 /* automatic LF on CR */
|
||||
#define LPT_NOPRIME 0x40 /* don't prime on open */
|
||||
#define LPT_NOINTR 0x80 /* do not use interrupt */
|
||||
u_char sc_prir;
|
||||
u_char sc_laststatus;
|
||||
};
|
||||
|
||||
/* {b,c}devsw[] function prototypes */
|
||||
dev_type_open(lptopen);
|
||||
dev_type_close(lptclose);
|
||||
dev_type_write(lptwrite);
|
||||
dev_type_ioctl(lptioctl);
|
||||
|
||||
int lptintr __P((void *));
|
||||
|
||||
|
||||
/*
|
||||
* Autoconfig stuff
|
||||
*/
|
||||
static int lpt_pcc_match __P((struct device *, void *, void *));
|
||||
static void lpt_pcc_attach __P((struct device *, struct device *, void *));
|
||||
|
||||
struct cfattach lpt_pcc_ca = {
|
||||
sizeof(struct lpt_softc), lpt_pcc_match, lpt_pcc_attach
|
||||
};
|
||||
|
||||
struct cfdriver lpt_cd = {
|
||||
NULL, "lpt", DV_DULL, NULL, 0
|
||||
};
|
||||
|
||||
#define LPTUNIT(s) (minor(s) & 0x0f)
|
||||
#define LPTFLAGS(s) (minor(s) & 0xf0)
|
||||
|
||||
#define LPS_INVERT (LPS_SELECT)
|
||||
#define LPS_MASK (LPS_SELECT|LPS_FAULT|LPS_BUSY|LPS_PAPER_EMPTY)
|
||||
#define NOT_READY() ((sc->sc_regs->pr_status ^ LPS_INVERT) & LPS_MASK)
|
||||
#define NOT_READY_ERR() not_ready(sc->sc_regs->pr_status, sc)
|
||||
static int not_ready __P((u_char, struct lpt_softc *));
|
||||
|
||||
static void lptwakeup __P((void *arg));
|
||||
static int pushbytes __P((struct lpt_softc *));
|
||||
|
||||
|
||||
/*ARGSUSED*/
|
||||
static int
|
||||
lpt_pcc_match(pdp, match, auxp)
|
||||
struct device *pdp;
|
||||
void *match, *auxp;
|
||||
{
|
||||
struct cfdata *cf = match;
|
||||
struct pcc_attach_args *pa = auxp;
|
||||
|
||||
if (strcmp(pa->pa_name, lpt_cd.cd_name))
|
||||
return (0);
|
||||
|
||||
pa->pa_ipl = cf->pcccf_ipl;
|
||||
return (1);
|
||||
}
|
||||
|
||||
/*ARGSUSED*/
|
||||
static void
|
||||
lpt_pcc_attach(pdp, dp, auxp)
|
||||
struct device *pdp, *dp;
|
||||
void *auxp;
|
||||
{
|
||||
struct lpt_softc *sc = (void *)dp;
|
||||
struct pcc_attach_args *pa = auxp;
|
||||
|
||||
/*
|
||||
* Get pointer to regs
|
||||
*/
|
||||
sc->sc_regs = (union lpt_regs *) PCC_VADDR(pa->pa_offset);
|
||||
|
||||
sc->sc_ipl = pa->pa_ipl & PCC_IMASK;
|
||||
sc->sc_state = 0;
|
||||
sc->sc_laststatus = 0;
|
||||
|
||||
/*
|
||||
* Hook into the printer interrupt
|
||||
*/
|
||||
pccintr_establish(PCCV_PRINTER, lptintr, sc->sc_ipl, sc);
|
||||
|
||||
/*
|
||||
* Disable interrupts until device is opened
|
||||
*/
|
||||
sys_pcc->pr_int = 0;
|
||||
|
||||
printf("\n");
|
||||
}
|
||||
|
||||
/*
|
||||
* Reset the printer, then wait until it's selected and not busy.
|
||||
*/
|
||||
int
|
||||
lptopen(dev, flag, mode, p)
|
||||
dev_t dev;
|
||||
int flag;
|
||||
int mode;
|
||||
struct proc *p;
|
||||
{
|
||||
int unit = LPTUNIT(dev);
|
||||
u_char flags = LPTFLAGS(dev);
|
||||
struct lpt_softc *sc;
|
||||
int error;
|
||||
int spin;
|
||||
|
||||
if (unit >= lpt_cd.cd_ndevs)
|
||||
return ENXIO;
|
||||
sc = lpt_cd.cd_devs[unit];
|
||||
if (!sc)
|
||||
return ENXIO;
|
||||
|
||||
#ifdef DIAGNOSTIC
|
||||
if (sc->sc_state)
|
||||
printf("%s: stat=0x%x not zero\n", sc->sc_dev.dv_xname,
|
||||
sc->sc_state);
|
||||
#endif
|
||||
|
||||
if (sc->sc_state)
|
||||
return EBUSY;
|
||||
|
||||
sc->sc_state = LPT_INIT;
|
||||
sc->sc_flags = flags;
|
||||
LPRINTF(("%s: open: flags=0x%x\n", sc->sc_dev.dv_xname, flags));
|
||||
|
||||
if ((flags & LPT_NOPRIME) == 0) {
|
||||
/* assert Input Prime for 100 usec to start up printer */
|
||||
sys_pcc->pr_cr = LPC_INPUT_PRIME;
|
||||
delay(100);
|
||||
}
|
||||
|
||||
/* select fast or slow strobe depending on minor device number */
|
||||
if ( flags & LPT_FAST_STROBE )
|
||||
sys_pcc->pr_cr = LPC_FAST_STROBE;
|
||||
else
|
||||
sys_pcc->pr_cr = 0;
|
||||
|
||||
/* wait till ready (printer running diagnostics) */
|
||||
for (spin = 0; NOT_READY_ERR(); spin += STEP) {
|
||||
if (spin >= TIMEOUT) {
|
||||
sc->sc_state = 0;
|
||||
return EBUSY;
|
||||
}
|
||||
|
||||
/* wait 1/4 second, give up if we get a signal */
|
||||
error = tsleep((caddr_t)sc, LPTPRI | PCATCH, "lptopen", STEP);
|
||||
if (error != EWOULDBLOCK) {
|
||||
sc->sc_state = 0;
|
||||
return error;
|
||||
}
|
||||
}
|
||||
|
||||
sc->sc_inbuf = geteblk(LPT_BSIZE);
|
||||
sc->sc_count = 0;
|
||||
sc->sc_state = LPT_OPEN;
|
||||
sc->sc_prir = 0;
|
||||
|
||||
sys_pcc->pr_int = LPI_ACKINT | LPI_FAULTINT;
|
||||
|
||||
if ((sc->sc_flags & LPT_NOINTR) == 0)
|
||||
{
|
||||
int sps;
|
||||
|
||||
lptwakeup(sc);
|
||||
|
||||
sc->sc_prir = sc->sc_ipl | LPI_ENABLE;
|
||||
sps = splhigh();
|
||||
sys_pcc->pr_int = sc->sc_prir;
|
||||
splx(sps);
|
||||
}
|
||||
|
||||
LPRINTF(("%s: opened\n", sc->sc_dev.dv_xname));
|
||||
return 0;
|
||||
}
|
||||
|
||||
int
|
||||
not_ready(status, sc)
|
||||
u_char status;
|
||||
struct lpt_softc *sc;
|
||||
{
|
||||
u_char new;
|
||||
|
||||
status = (status ^ LPS_INVERT) & LPS_MASK;
|
||||
new = status & ~sc->sc_laststatus;
|
||||
sc->sc_laststatus = status;
|
||||
|
||||
if (new & LPS_SELECT)
|
||||
log(LOG_NOTICE, "%s: offline\n", sc->sc_dev.dv_xname);
|
||||
else if (new & LPS_PAPER_EMPTY)
|
||||
log(LOG_NOTICE, "%s: out of paper\n", sc->sc_dev.dv_xname);
|
||||
else if (new & LPS_FAULT)
|
||||
log(LOG_NOTICE, "%s: output error\n", sc->sc_dev.dv_xname);
|
||||
|
||||
sys_pcc->pr_int = sc->sc_prir | LPI_FAULTINT;
|
||||
|
||||
return status;
|
||||
}
|
||||
|
||||
void
|
||||
lptwakeup(arg)
|
||||
void *arg;
|
||||
{
|
||||
struct lpt_softc *sc = arg;
|
||||
int s;
|
||||
|
||||
s = spltty();
|
||||
lptintr(sc);
|
||||
splx(s);
|
||||
|
||||
timeout(lptwakeup, sc, STEP);
|
||||
}
|
||||
|
||||
/*
|
||||
* Close the device, and free the local line buffer.
|
||||
*/
|
||||
int
|
||||
lptclose(dev, flag, mode, p)
|
||||
dev_t dev;
|
||||
int flag;
|
||||
int mode;
|
||||
struct proc *p;
|
||||
{
|
||||
int unit = LPTUNIT(dev);
|
||||
struct lpt_softc *sc = lpt_cd.cd_devs[unit];
|
||||
|
||||
if (sc->sc_count)
|
||||
(void) pushbytes(sc);
|
||||
|
||||
if ((sc->sc_flags & LPT_NOINTR) == 0)
|
||||
{
|
||||
int sps;
|
||||
|
||||
untimeout(lptwakeup, sc);
|
||||
|
||||
sc->sc_prir = 0;
|
||||
sps = splhigh();
|
||||
sys_pcc->pr_int = LPI_ACKINT | LPI_FAULTINT;
|
||||
splx(sps);
|
||||
}
|
||||
|
||||
sc->sc_state = 0;
|
||||
brelse(sc->sc_inbuf);
|
||||
|
||||
LPRINTF(("%s: closed\n", sc->sc_dev.dv_xname));
|
||||
return 0;
|
||||
}
|
||||
|
||||
int
|
||||
pushbytes(sc)
|
||||
struct lpt_softc *sc;
|
||||
{
|
||||
int error;
|
||||
|
||||
if (sc->sc_flags & LPT_NOINTR) {
|
||||
int spin, tic;
|
||||
|
||||
while (sc->sc_count > 0) {
|
||||
spin = 0;
|
||||
while (NOT_READY()) {
|
||||
if (++spin < sc->sc_spinmax)
|
||||
continue;
|
||||
tic = 0;
|
||||
/* adapt busy-wait algorithm */
|
||||
sc->sc_spinmax++;
|
||||
while (NOT_READY_ERR()) {
|
||||
/* exponential backoff */
|
||||
tic = tic + tic + 1;
|
||||
if (tic > TIMEOUT)
|
||||
tic = TIMEOUT;
|
||||
error = tsleep((caddr_t)sc,
|
||||
LPTPRI | PCATCH, "lptpsh", tic);
|
||||
if (error != EWOULDBLOCK)
|
||||
return error;
|
||||
}
|
||||
break;
|
||||
}
|
||||
|
||||
sc->sc_regs->pr_data = *sc->sc_cp++;
|
||||
sc->sc_count--;
|
||||
|
||||
/* adapt busy-wait algorithm */
|
||||
if (spin*2 + 16 < sc->sc_spinmax)
|
||||
sc->sc_spinmax--;
|
||||
}
|
||||
} else {
|
||||
int s;
|
||||
|
||||
while (sc->sc_count > 0) {
|
||||
/* if the printer is ready for a char, give it one */
|
||||
if ((sc->sc_state & LPT_OBUSY) == 0) {
|
||||
LPRINTF(("%s: write %d\n", sc->sc_dev.dv_xname,
|
||||
sc->sc_count));
|
||||
s = spltty();
|
||||
(void) lptintr(sc);
|
||||
splx(s);
|
||||
}
|
||||
error = tsleep((caddr_t)sc, LPTPRI | PCATCH,
|
||||
"lptwrite2", 0);
|
||||
if (error)
|
||||
return error;
|
||||
}
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*
|
||||
* Copy a line from user space to a local buffer, then call putc to get the
|
||||
* chars moved to the output queue.
|
||||
*/
|
||||
int
|
||||
lptwrite(dev, uio, flags)
|
||||
dev_t dev;
|
||||
struct uio *uio;
|
||||
int flags;
|
||||
{
|
||||
struct lpt_softc *sc = lpt_cd.cd_devs[LPTUNIT(dev)];
|
||||
size_t n;
|
||||
int error = 0;
|
||||
|
||||
while ((n = min(LPT_BSIZE, uio->uio_resid)) != 0) {
|
||||
uiomove(sc->sc_cp = sc->sc_inbuf->b_data, n, uio);
|
||||
sc->sc_count = n;
|
||||
error = pushbytes(sc);
|
||||
if (error) {
|
||||
/*
|
||||
* Return accurate residual if interrupted or timed
|
||||
* out.
|
||||
*/
|
||||
uio->uio_resid += sc->sc_count;
|
||||
sc->sc_count = 0;
|
||||
return error;
|
||||
}
|
||||
}
|
||||
return 0;
|
||||
}
|
||||
|
||||
/*
|
||||
* Handle printer interrupts which occur when the printer is ready to accept
|
||||
* another char.
|
||||
*/
|
||||
int
|
||||
lptintr(arg)
|
||||
void *arg;
|
||||
{
|
||||
struct lpt_softc *sc = arg;
|
||||
|
||||
#if 0
|
||||
if ((sc->sc_state & LPT_OPEN) == 0)
|
||||
return 0;
|
||||
#endif
|
||||
|
||||
/* is printer online and ready for output */
|
||||
if (NOT_READY() && NOT_READY_ERR())
|
||||
return 0;
|
||||
|
||||
if (sc->sc_count) {
|
||||
/* send char */
|
||||
sc->sc_regs->pr_data = *sc->sc_cp++;
|
||||
sc->sc_count--;
|
||||
sc->sc_state |= LPT_OBUSY;
|
||||
} else
|
||||
sc->sc_state &= ~LPT_OBUSY;
|
||||
|
||||
if ( sys_pcc->pr_int & LPI_ACKINT )
|
||||
sys_pcc->pr_int = sc->sc_prir | LPI_ACKINT;
|
||||
|
||||
if (sc->sc_count == 0) {
|
||||
/* none, wake up the top half to get more */
|
||||
wakeup((caddr_t)sc);
|
||||
}
|
||||
|
||||
return 1;
|
||||
}
|
||||
|
||||
int
|
||||
lptioctl(dev, cmd, data, flag, p)
|
||||
dev_t dev;
|
||||
u_long cmd;
|
||||
caddr_t data;
|
||||
int flag;
|
||||
struct proc *p;
|
||||
{
|
||||
int error = 0;
|
||||
|
||||
switch (cmd) {
|
||||
default:
|
||||
error = ENODEV;
|
||||
}
|
||||
|
||||
return error;
|
||||
}
|
||||
|
|
@ -0,0 +1,99 @@
|
|||
/* $NetBSD: lptreg.h,v 1.1 1996/11/09 03:52:52 chuck Exp $ */
|
||||
|
||||
/*-
|
||||
* Copyright (c) 1996 Steve Woodford
|
||||
*
|
||||
* Redistribution and use in source and binary forms, with or without
|
||||
* modification, are permitted provided that the following conditions
|
||||
* are met:
|
||||
* 1. Redistributions of source code must retain the above copyright
|
||||
* notice, this list of conditions and the following disclaimer.
|
||||
* 2. Redistributions in binary form must reproduce the above copyright
|
||||
* notice, this list of conditions and the following disclaimer in the
|
||||
* documentation and/or other materials provided with the distribution.
|
||||
* 3. All advertising materials mentioning features or use of this software
|
||||
* must display the following acknowledgement:
|
||||
* This product includes software developed by Steve Woodford
|
||||
* 4. Neither the name of the University nor the names of its contributors
|
||||
* may be used to endorse or promote products derived from this software
|
||||
* without specific prior written permission.
|
||||
*
|
||||
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
|
||||
* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
|
||||
* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
|
||||
* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
|
||||
* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
|
||||
* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||||
* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||||
* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
|
||||
* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
|
||||
*/
|
||||
|
||||
/*
|
||||
* MVME147 Parallel Port Register Definitions
|
||||
* Copyright (c) 1996 Steve Woodford
|
||||
*/
|
||||
|
||||
/*
|
||||
* The mvme147's PCC chip has two status/control registers for the
|
||||
* printer port:
|
||||
*
|
||||
* sys_pcc->pr_int Printer Interrupt Control Register
|
||||
* 0 - 2 Interrupt Level
|
||||
* 3 Interrupt Enable
|
||||
* 4 ACK Polarity. If set, falling edge of ACK generates
|
||||
* the interrupt. If clear, rising edge of ACK generates
|
||||
* the interrupt.
|
||||
* 5 Indicates an ACK interrupt in progress. Cleared by
|
||||
* writing a one, or disabling lpt interrupts.
|
||||
* 6 Indicates a FAULT interrupt. Set on falling edge
|
||||
* of printer's fault signal. Cleared by writing a one.
|
||||
* 7 Printer Interrupt in progress. Basically just the
|
||||
* logical OR of bits 5 and 6.
|
||||
*/
|
||||
#define LPI_ENABLE (1 << 3)
|
||||
#define LPI_ACKPOL (1 << 4)
|
||||
#define LPI_ACKINT (1 << 5)
|
||||
#define LPI_FAULTINT (1 << 6)
|
||||
#define LPI_INTERRUPT (1 << 7)
|
||||
|
||||
/*
|
||||
* sys_pcc->pr_cr Printer Control Register
|
||||
* 0 Selects auto or manual strobe mode. When low, strobe
|
||||
* is automatically generated by a write to the printer
|
||||
* data register. When set, strobe must be generated
|
||||
* manually using bit 2 of this register.
|
||||
* 1 Controls strobe timing in auto mode. When low, strobe
|
||||
* time is 6.4uS. When high, strobe time is 1.6uS.
|
||||
* 2 Controls strobe in manual mode.
|
||||
* 3 Control Input Prime signal. When set, Input Prime
|
||||
* is activated.
|
||||
*
|
||||
* Two other registers which are not addressed via the global PCC structure,
|
||||
* live at 0xfffe2800. This address is virtualised and passed to the driver
|
||||
* in the pcc_attach_args structure:
|
||||
*/
|
||||
#define LPC_STROBE_MODE (1 << 0)
|
||||
#define LPC_FAST_STROBE (1 << 1)
|
||||
#define LPC_STROBE (1 << 2)
|
||||
#define LPC_INPUT_PRIME (1 << 3)
|
||||
|
||||
/*
|
||||
* Union of data and status registers. Write to access the data register.
|
||||
* Read to access the status register.
|
||||
*/
|
||||
union lpt_regs {
|
||||
volatile u_char pr_data; /* Write only data register */
|
||||
volatile u_char pr_status; /* Read only status register */
|
||||
};
|
||||
|
||||
/*
|
||||
* Access macros for the status register
|
||||
*/
|
||||
#define LPS_BUSY (1 << 3)
|
||||
#define LPS_PAPER_EMPTY (1 << 4)
|
||||
#define LPS_SELECT (1 << 5)
|
||||
#define LPS_FAULT (1 << 6)
|
||||
#define LPS_ACK (1 << 7)
|
||||
|
||||
|
|
@ -1,4 +1,4 @@
|
|||
/* $NetBSD: conf.c,v 1.8 1996/11/08 22:00:42 chuck Exp $ */
|
||||
/* $NetBSD: conf.c,v 1.9 1996/11/09 03:52:55 chuck Exp $ */
|
||||
|
||||
/*-
|
||||
* Copyright (c) 1991 The Regents of the University of California.
|
||||
|
|
@ -122,6 +122,14 @@ cdev_decl(bpf);
|
|||
#include "tun.h"
|
||||
cdev_decl(tun);
|
||||
|
||||
#include "lpt.h"
|
||||
cdev_decl(lpt);
|
||||
/* open, close, write, ioctl */
|
||||
#define cdev_lpt_init(c,n) { \
|
||||
dev_init(c,n,open), dev_init(c,n,close), (dev_type_read((*)))enodev, \
|
||||
dev_init(c,n,write), dev_init(c,n,ioctl), (dev_type_stop((*)))enodev, \
|
||||
0, seltrue, (dev_type_mmap((*))) enodev, 0}
|
||||
|
||||
struct cdevsw cdevsw[] =
|
||||
{
|
||||
cdev_cn_init(1,cn), /* 0: virtual console */
|
||||
|
|
@ -135,7 +143,7 @@ struct cdevsw cdevsw[] =
|
|||
cdev_disk_init(NSD,sd), /* 8: SCSI disk */
|
||||
cdev_notdef(), /* 9 */
|
||||
cdev_notdef(), /* 10 */
|
||||
cdev_notdef(), /* 11: parallel interface */
|
||||
cdev_lpt_init(NLPT,lpt), /* 11: parallel interface */
|
||||
cdev_tty_init(NZSTTY,zs), /* 12: SCC serial ports */
|
||||
cdev_notdef(), /* 13 */
|
||||
cdev_notdef(), /* 14 */
|
||||
|
|
|
|||
Loading…
Reference in New Issue