-/* $OpenBSD: lpt_pica.c,v 1.1 1996/11/28 23:35:44 niklas Exp $ */
+/* $OpenBSD: lpt_pica.c,v 1.2 1996/11/30 00:53:39 niklas Exp $ */
/*
* Copyright (c) 1993, 1994 Charles Hannum.
#include <machine/bus.h>
#include <machine/intr.h>
-#include <dev/isa/lptreg.h>
-
-/* XXX create ic/lptvar.h with this structure and prototypes in it. */
-struct lpt_softc {
- struct device sc_dev;
- void *sc_ih;
-
- size_t sc_count;
- struct buf *sc_inbuf;
- u_char *sc_cp;
- int sc_spinmax;
- int sc_iobase;
- bus_space_tag_t sc_iot;
- bus_space_handle_t sc_ioh;
- int sc_irq;
- 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_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_control;
- u_char sc_laststatus;
-};
-
-int lptintr __P((void *));
+#include <dev/ic/lptreg.h>
+#include <dev/ic/lptvar.h>
int lpt_pica_probe __P((struct device *, void *, void *));
void lpt_pica_attach __P((struct device *, struct device *, void *));
struct confargs *ca = aux;
bus_space_tag_t iot;
bus_space_handle_t ioh;
- u_long base;
- u_char mask, data;
+ bus_addr_t base;
+ u_int8_t mask, data;
int i;
#ifdef DEBUG
return(0);
iot = 0;
- base = (int)BUS_CVTADDR(ca);
- ioh = base;
+ base = (bus_addr_t)BUS_CVTADDR(ca);
+ ioh = (bus_space_handle_t)base;
mask = 0xff;
printf("\n");
- sc->sc_iobase = (int)BUS_CVTADDR(ca);
- sc->sc_irq = 0;
sc->sc_state = 0;
-
iot = sc->sc_iot = 0;
- sc->sc_ioh = sc->sc_iobase;
+ sc->sc_ioh = (bus_space_handle_t)BUS_CVTADDR(ca);
bus_space_write_1(iot, ioh, lpt_control, LPC_NINIT);
-# $OpenBSD: files,v 1.46 1996/11/28 23:10:28 niklas Exp $
+# $OpenBSD: files,v 1.47 1996/11/30 00:53:34 niklas Exp $
# $NetBSD: files,v 1.87 1996/05/19 17:17:50 jonathan Exp $
# @(#)files.newconf 7.5 (Berkeley) 5/10/93
device le: ether, ifnet
file dev/ic/am7990.c le
-# LANCE and PCnet Ethernet controllers
+# Cyclades Cyclom multiport serial cards
device cy: tty
file dev/ic/cy.c cy & (cy_isa | cy_pci) needs-flag
+# PC parallel ports (XXX what chip?)
+device lpt
+file dev/ic/lpt.c lpt & (lpt_isa | lpt_pica) needs-flag
+
# Attributes which machine-independent bus support can be attached to.
# These should be defined here, because some of these busses can have
# devices which provide these attributes, and we'd like to avoid hairy
--- /dev/null
+/* $OpenBSD: lpt.c,v 1.1 1996/11/30 00:53:35 niklas Exp $ */
+/* $NetBSD: lpt.c,v 1.42 1996/10/21 22:41:14 thorpej Exp $ */
+
+/*
+ * 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 AT parallel printer port
+ */
+
+#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/bus.h>
+#include <machine/intr.h>
+
+#include <dev/ic/lptreg.h>
+#include <dev/ic/lptvar.h>
+
+#include "lpt.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
+
+/* XXX does not belong here */
+cdev_decl(lpt);
+
+struct cfdriver lpt_cd = {
+ NULL, "lpt", DV_TTY
+};
+
+#define LPTUNIT(s) (minor(s) & 0x1f)
+#define LPTFLAGS(s) (minor(s) & 0xe0)
+
+#define LPS_INVERT (LPS_SELECT|LPS_NERR|LPS_NBSY|LPS_NACK)
+#define LPS_MASK (LPS_SELECT|LPS_NERR|LPS_NBSY|LPS_NACK|LPS_NOPAPER)
+#define NOT_READY() \
+ ((bus_space_read_1(iot, ioh, lpt_status) ^ LPS_INVERT) & LPS_MASK)
+#define NOT_READY_ERR() \
+ lpt_not_ready(bus_space_read_1(iot, ioh, lpt_status), sc)
+
+int lpt_not_ready __P((u_int8_t, struct lpt_softc *));
+void lptwakeup __P((void *arg));
+int lptpushbytes __P((struct lpt_softc *));
+
+/*
+ * Internal routine to lptprobe to do port tests of one byte value.
+ */
+int
+lpt_port_test(iot, ioh, base, off, data, mask)
+ bus_space_tag_t iot;
+ bus_space_handle_t ioh;
+ bus_addr_t base;
+ bus_size_t off;
+ u_int8_t data, mask;
+{
+ int timeout;
+ u_int8_t temp;
+
+ data &= mask;
+ bus_space_write_1(iot, ioh, off, data);
+ timeout = 1000;
+ do {
+ delay(10);
+ temp = bus_space_read_1(iot, ioh, off) & mask;
+ } while (temp != data && --timeout);
+ LPRINTF(("lpt: port=0x%x out=0x%x in=0x%x timeout=%d\n", base + off,
+ data, temp, timeout));
+ return (temp == data);
+}
+
+/*
+ * 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_int8_t flags = LPTFLAGS(dev);
+ struct lpt_softc *sc;
+ bus_space_tag_t iot;
+ bus_space_handle_t ioh;
+ u_int8_t control;
+ int error;
+ int spin;
+
+ if (unit >= lpt_cd.cd_ndevs)
+ return ENXIO;
+ sc = lpt_cd.cd_devs[unit];
+ if (!sc)
+ return ENXIO;
+
+ if ((sc->sc_flags & (LPT_POLLED|LPT_NOINTR)) == LPT_POLLED)
+ 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));
+ iot = sc->sc_iot;
+ ioh = sc->sc_ioh;
+
+ if ((flags & LPT_NOPRIME) == 0) {
+ /* assert INIT for 100 usec to start up printer */
+ bus_space_write_1(iot, ioh, lpt_control, LPC_SELECT);
+ delay(100);
+ }
+
+ control = LPC_SELECT | LPC_NINIT;
+ bus_space_write_1(iot, ioh, lpt_control, control);
+
+ /* 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;
+ }
+ }
+
+ if ((flags & LPT_NOINTR) == 0)
+ control |= LPC_IENABLE;
+ if (flags & LPT_AUTOLF)
+ control |= LPC_AUTOLF;
+ sc->sc_control = control;
+ bus_space_write_1(iot, ioh, lpt_control, control);
+
+ sc->sc_inbuf = geteblk(LPT_BSIZE);
+ sc->sc_count = 0;
+ sc->sc_state = LPT_OPEN;
+
+ if ((sc->sc_flags & LPT_NOINTR) == 0)
+ lptwakeup(sc);
+
+ LPRINTF(("%s: opened\n", sc->sc_dev.dv_xname));
+ return 0;
+}
+
+int
+lpt_not_ready(status, sc)
+ u_int8_t status;
+ struct lpt_softc *sc;
+{
+ u_int8_t 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_NOPAPER)
+ log(LOG_NOTICE, "%s: out of paper\n", sc->sc_dev.dv_xname);
+ else if (new & LPS_NERR)
+ log(LOG_NOTICE, "%s: output error\n", sc->sc_dev.dv_xname);
+
+ 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];
+ bus_space_tag_t iot = sc->sc_iot;
+ bus_space_handle_t ioh = sc->sc_ioh;
+
+ if (sc->sc_count)
+ (void) lptpushbytes(sc);
+
+ if ((sc->sc_flags & LPT_NOINTR) == 0)
+ untimeout(lptwakeup, sc);
+
+ bus_space_write_1(iot, ioh, lpt_control, LPC_NINIT);
+ sc->sc_state = 0;
+ bus_space_write_1(iot, ioh, lpt_control, LPC_NINIT);
+ brelse(sc->sc_inbuf);
+
+ LPRINTF(("%s: closed\n", sc->sc_dev.dv_xname));
+ return 0;
+}
+
+int
+lptpushbytes(sc)
+ struct lpt_softc *sc;
+{
+ bus_space_tag_t iot = sc->sc_iot;
+ bus_space_handle_t ioh = sc->sc_ioh;
+ int error;
+
+ if (sc->sc_flags & LPT_NOINTR) {
+ int spin, tic;
+ u_int8_t control = sc->sc_control;
+
+ 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;
+ }
+
+ bus_space_write_1(iot, ioh, lpt_data, *sc->sc_cp++);
+ bus_space_write_1(iot, ioh, lpt_control,
+ control | LPC_STROBE);
+ sc->sc_count--;
+ bus_space_write_1(iot, ioh, lpt_control, control);
+
+ /* 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 = lptpushbytes(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;
+ bus_space_tag_t iot = sc->sc_iot;
+ bus_space_handle_t ioh = sc->sc_ioh;
+
+ if (((sc->sc_state & LPT_OPEN) == 0 && sc->sc_count == 0) ||
+ (sc->sc_flags & LPT_NOINTR))
+ return 0;
+
+ /* is printer online and ready for output */
+ if (NOT_READY() && NOT_READY_ERR())
+ return -1;
+
+ if (sc->sc_count) {
+ u_int8_t control = sc->sc_control;
+ /* send char */
+ bus_space_write_1(iot, ioh, lpt_data, *sc->sc_cp++);
+ delay (50);
+ bus_space_write_1(iot, ioh, lpt_control, control | LPC_STROBE);
+ sc->sc_count--;
+ bus_space_write_1(iot, ioh, lpt_control, control);
+ sc->sc_state |= LPT_OBUSY;
+ } else
+ sc->sc_state &= ~LPT_OBUSY;
+
+ 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;
+}
--- /dev/null
+/* $NetBSD: lptreg.h,v 1.4 1994/10/27 04:17:56 cgd Exp $ */
+
+/*-
+ * Copyright (c) 1990 The Regents of the University of California.
+ * All rights reserved.
+ *
+ * This code is derived from software contributed to Berkeley by
+ * William Jolitz.
+ *
+ * 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 the University of
+ * California, Berkeley and its contributors.
+ * 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 REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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.
+ *
+ * @(#)lptreg.h 1.1 (Berkeley) 12/19/90
+ */
+
+/*
+ * AT Parallel Port (for lineprinter)
+ * Interface port and bit definitions
+ * Written by William Jolitz 12/18/90
+ * Copyright (C) William Jolitz 1990
+ */
+
+#define lpt_data 0 /* Data to/from printer (R/W) */
+
+#define lpt_status 1 /* Status of printer (R) */
+#define LPS_NERR 0x08 /* printer no error */
+#define LPS_SELECT 0x10 /* printer selected */
+#define LPS_NOPAPER 0x20 /* printer out of paper */
+#define LPS_NACK 0x40 /* printer no ack of data */
+#define LPS_NBSY 0x80 /* printer no ack of data */
+
+#define lpt_control 2 /* Control printer (R/W) */
+#define LPC_STROBE 0x01 /* strobe data to printer */
+#define LPC_AUTOLF 0x02 /* automatic linefeed */
+#define LPC_NINIT 0x04 /* initialize printer */
+#define LPC_SELECT 0x08 /* printer selected */
+#define LPC_IENABLE 0x10 /* printer out of paper */
+
+#define LPT_NPORTS 8
--- /dev/null
+/* $OpenBSD: lptvar.h,v 1.1 1996/11/30 00:53:36 niklas Exp $ */
+/* $NetBSD: lpt.c,v 1.42 1996/10/21 22:41:14 thorpej Exp $ */
+
+/*
+ * 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.
+ */
+
+struct lpt_softc {
+ struct device sc_dev;
+ void *sc_ih;
+
+ size_t sc_count;
+ struct buf *sc_inbuf;
+ u_int8_t *sc_cp;
+ int sc_spinmax;
+ bus_space_tag_t sc_iot; /* bus tag */
+ bus_space_handle_t sc_ioh; /* handle to the registers */
+ u_int8_t 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_int8_t sc_flags;
+#define LPT_POLLED 0x10 /* configured for polling only */
+#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_int8_t sc_control;
+ u_int8_t sc_laststatus;
+};
+
+int lptintr __P((void *));
+int lpt_port_test __P((bus_space_tag_t, bus_space_handle_t, bus_addr_t,
+ bus_size_t, u_int8_t, u_int8_t));
-# $OpenBSD: files.isa,v 1.28 1996/11/29 22:54:57 niklas Exp $
+# $OpenBSD: files.isa,v 1.29 1996/11/30 00:53:39 niklas Exp $
# $NetBSD: files.isa,v 1.21 1996/05/16 03:45:55 mycroft Exp $
#
# Config.new file and device description for machine-independent ISA code.
file dev/isa/cy_isa.c cy_isa
# PC parallel ports (XXX what chip?)
-device lpt
attach lpt at isa with lpt_isa
-file dev/isa/lpt.c lpt & (lpt_isa | lpt_pica) needs-flag
file dev/isa/lpt_isa.c lpt_isa needs-flag
#
+++ /dev/null
-/* $OpenBSD: lpt.c,v 1.20 1996/11/29 22:55:04 niklas Exp $ */
-/* $NetBSD: lpt.c,v 1.42 1996/10/21 22:41:14 thorpej Exp $ */
-
-/*
- * 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 AT parallel printer port
- */
-
-#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/bus.h>
-#include <machine/intr.h>
-
-#include <dev/isa/isavar.h>
-#include <dev/isa/lptreg.h>
-
-#include "lpt.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;
- void *sc_ih;
-
- size_t sc_count;
- struct buf *sc_inbuf;
- u_char *sc_cp;
- int sc_spinmax;
- int sc_iobase;
- bus_space_tag_t sc_iot;
- bus_space_handle_t sc_ioh;
- int sc_irq;
- 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_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_control;
- u_char sc_laststatus;
-};
-
-/* XXX does not belong here */
-cdev_decl(lpt);
-
-int lptintr __P((void *));
-
-#if NLPT_ISA
-int lpt_isa_probe __P((struct device *, void *, void *));
-void lpt_isa_attach __P((struct device *, struct device *, void *));
-struct cfattach lpt_isa_ca = {
- sizeof(struct lpt_softc), lpt_isa_probe, lpt_isa_attach
-};
-#endif
-
-struct cfdriver lpt_cd = {
- NULL, "lpt", DV_TTY
-};
-
-#define LPTUNIT(s) (minor(s) & 0x1f)
-#define LPTFLAGS(s) (minor(s) & 0xe0)
-
-#define LPS_INVERT (LPS_SELECT|LPS_NERR|LPS_NBSY|LPS_NACK)
-#define LPS_MASK (LPS_SELECT|LPS_NERR|LPS_NBSY|LPS_NACK|LPS_NOPAPER)
-#define NOT_READY() ((bus_space_read_1(iot, ioh, lpt_status) ^ LPS_INVERT) & LPS_MASK)
-#define NOT_READY_ERR() not_ready(bus_space_read_1(iot, ioh, lpt_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 *));
-
-int lpt_port_test __P((bus_space_tag_t, bus_space_handle_t, bus_addr_t,
- bus_size_t, u_char, u_char));
-
-/*
- * Internal routine to lptprobe to do port tests of one byte value.
- */
-int
-lpt_port_test(iot, ioh, base, off, data, mask)
- bus_space_tag_t iot;
- bus_space_handle_t ioh;
- bus_addr_t base;
- bus_size_t off;
- u_char data, mask;
-{
- int timeout;
- u_char temp;
-
- data &= mask;
- bus_space_write_1(iot, ioh, off, data);
- timeout = 1000;
- do {
- delay(10);
- temp = bus_space_read_1(iot, ioh, off) & mask;
- } while (temp != data && --timeout);
- LPRINTF(("lpt: port=0x%x out=0x%x in=0x%x timeout=%d\n", base + off,
- data, temp, timeout));
- return (temp == data);
-}
-
-/*
- * Logic:
- * 1) You should be able to write to and read back the same value
- * to the data port. Do an alternating zeros, alternating ones,
- * walking zero, and walking one test to check for stuck bits.
- *
- * 2) You should be able to write to and read back the same value
- * to the control port lower 5 bits, the upper 3 bits are reserved
- * per the IBM PC technical reference manauls and different boards
- * do different things with them. Do an alternating zeros, alternating
- * ones, walking zero, and walking one test to check for stuck bits.
- *
- * Some printers drag the strobe line down when the are powered off
- * so this bit has been masked out of the control port test.
- *
- * XXX Some printers may not like a fast pulse on init or strobe, I
- * don't know at this point, if that becomes a problem these bits
- * should be turned off in the mask byte for the control port test.
- *
- * 3) Set the data and control ports to a value of 0
- */
-#if NLPT_ISA
-int
-lpt_isa_probe(parent, match, aux)
- struct device *parent;
- void *match, *aux;
-{
- struct isa_attach_args *ia = aux;
- bus_space_tag_t iot;
- bus_space_handle_t ioh;
- u_long base;
- u_char mask, data;
- int i, rv;
-
-#ifdef DEBUG
-#define ABORT \
- do { \
- printf("lpt_isa_probe: mask %x data %x failed\n", mask, \
- data); \
- goto out; \
- } while (0)
-#else
-#define ABORT goto out
-#endif
-
- iot = ia->ia_iot;
- base = ia->ia_iobase;
- if (bus_space_map(iot, base, LPT_NPORTS, 0, &ioh))
- return 0;
-
- rv = 0;
- mask = 0xff;
-
- data = 0x55; /* Alternating zeros */
- if (!lpt_port_test(iot, ioh, base, lpt_data, data, mask))
- ABORT;
-
- data = 0xaa; /* Alternating ones */
- if (!lpt_port_test(iot, ioh, base, lpt_data, data, mask))
- ABORT;
-
- for (i = 0; i < CHAR_BIT; i++) { /* Walking zero */
- data = ~(1 << i);
- if (!lpt_port_test(iot, ioh, base, lpt_data, data, mask))
- ABORT;
- }
-
- for (i = 0; i < CHAR_BIT; i++) { /* Walking one */
- data = (1 << i);
- if (!lpt_port_test(iot, ioh, base, lpt_data, data, mask))
- ABORT;
- }
-
- bus_space_write_1(iot, ioh, lpt_data, 0);
- bus_space_write_1(iot, ioh, lpt_control, 0);
-
- ia->ia_iosize = LPT_NPORTS;
- ia->ia_msize = 0;
-
- rv = 1;
-
-out:
- bus_space_unmap(iot, ioh, LPT_NPORTS);
- return rv;
-}
-#endif
-
-#if NLPT_ISA
-void
-lpt_isa_attach(parent, self, aux)
- struct device *parent, *self;
- void *aux;
-{
- struct lpt_softc *sc = (void *)self;
- struct isa_attach_args *ia = aux;
- bus_space_tag_t iot;
- bus_space_handle_t ioh;
-
- if (ia->ia_irq != IRQUNK)
- printf("\n");
- else
- printf(": polled\n");
-
- sc->sc_iobase = ia->ia_iobase;
- sc->sc_irq = ia->ia_irq;
- sc->sc_state = 0;
-
- iot = sc->sc_iot = ia->ia_iot;
- if (bus_space_map(iot, sc->sc_iobase, LPT_NPORTS, 0, &ioh))
- panic("lpt_isa_attach: couldn't map I/O ports");
- sc->sc_ioh = ioh;
-
- bus_space_write_1(iot, ioh, lpt_control, LPC_NINIT);
-
- if (ia->ia_irq != IRQUNK)
- sc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq, IST_EDGE,
- IPL_TTY, lptintr, sc, sc->sc_dev.dv_xname);
-}
-#endif
-
-/*
- * 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;
- bus_space_tag_t iot;
- bus_space_handle_t ioh;
- u_char control;
- int error;
- int spin;
-
- if (unit >= lpt_cd.cd_ndevs)
- return ENXIO;
- sc = lpt_cd.cd_devs[unit];
- if (!sc)
- return ENXIO;
-
- if (sc->sc_irq == IRQUNK && (flags & LPT_NOINTR) == 0)
- 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));
- iot = sc->sc_iot;
- ioh = sc->sc_ioh;
-
- if ((flags & LPT_NOPRIME) == 0) {
- /* assert INIT for 100 usec to start up printer */
- bus_space_write_1(iot, ioh, lpt_control, LPC_SELECT);
- delay(100);
- }
-
- control = LPC_SELECT | LPC_NINIT;
- bus_space_write_1(iot, ioh, lpt_control, control);
-
- /* 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;
- }
- }
-
- if ((flags & LPT_NOINTR) == 0)
- control |= LPC_IENABLE;
- if (flags & LPT_AUTOLF)
- control |= LPC_AUTOLF;
- sc->sc_control = control;
- bus_space_write_1(iot, ioh, lpt_control, control);
-
- sc->sc_inbuf = geteblk(LPT_BSIZE);
- sc->sc_count = 0;
- sc->sc_state = LPT_OPEN;
-
- if ((sc->sc_flags & LPT_NOINTR) == 0)
- lptwakeup(sc);
-
- 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_NOPAPER)
- log(LOG_NOTICE, "%s: out of paper\n", sc->sc_dev.dv_xname);
- else if (new & LPS_NERR)
- log(LOG_NOTICE, "%s: output error\n", sc->sc_dev.dv_xname);
-
- 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];
- bus_space_tag_t iot = sc->sc_iot;
- bus_space_handle_t ioh = sc->sc_ioh;
-
- if (sc->sc_count)
- (void) pushbytes(sc);
-
- if ((sc->sc_flags & LPT_NOINTR) == 0)
- untimeout(lptwakeup, sc);
-
- bus_space_write_1(iot, ioh, lpt_control, LPC_NINIT);
- sc->sc_state = 0;
- bus_space_write_1(iot, ioh, lpt_control, LPC_NINIT);
- brelse(sc->sc_inbuf);
-
- LPRINTF(("%s: closed\n", sc->sc_dev.dv_xname));
- return 0;
-}
-
-int
-pushbytes(sc)
- struct lpt_softc *sc;
-{
- bus_space_tag_t iot = sc->sc_iot;
- bus_space_handle_t ioh = sc->sc_ioh;
- int error;
-
- if (sc->sc_flags & LPT_NOINTR) {
- int spin, tic;
- u_char control = sc->sc_control;
-
- 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;
- }
-
- bus_space_write_1(iot, ioh, lpt_data, *sc->sc_cp++);
- bus_space_write_1(iot, ioh, lpt_control, control | LPC_STROBE);
- sc->sc_count--;
- bus_space_write_1(iot, ioh, lpt_control, control);
-
- /* 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;
- bus_space_tag_t iot = sc->sc_iot;
- bus_space_handle_t ioh = sc->sc_ioh;
-
- if (((sc->sc_state & LPT_OPEN) == 0 && sc->sc_count == 0) || (sc->sc_flags & LPT_NOINTR))
- return 0;
-
- /* is printer online and ready for output */
- if (NOT_READY() && NOT_READY_ERR())
- return -1;
-
- if (sc->sc_count) {
- u_char control = sc->sc_control;
- /* send char */
- bus_space_write_1(iot, ioh, lpt_data, *sc->sc_cp++);
- delay (50);
- bus_space_write_1(iot, ioh, lpt_control, control | LPC_STROBE);
- sc->sc_count--;
- bus_space_write_1(iot, ioh, lpt_control, control);
- sc->sc_state |= LPT_OBUSY;
- } else
- sc->sc_state &= ~LPT_OBUSY;
-
- 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;
-}
-/* $OpenBSD: lpt_isa.c,v 1.1 1996/11/29 23:51:13 niklas Exp $ */
+/* $OpenBSD: lpt_isa.c,v 1.2 1996/11/30 00:53:38 niklas Exp $ */
/*
* Copyright (c) 1993, 1994 Charles Hannum.
#include <machine/bus.h>
#include <machine/intr.h>
-#include <dev/isa/lptreg.h>
+#include <dev/isa/isavar.h>
+#include <dev/ic/lptreg.h>
+#include <dev/ic/lptvar.h>
-int lpt_isa_probe __P((struct device *, void *, void *));
-void lpt_isa_attach __P((struct device *, struct device *, void *));
+int lpt_isa_probe __P((struct device *, void *, void *));
+void lpt_isa_attach __P((struct device *, struct device *, void *));
struct cfattach lpt_isa_ca = {
sizeof(struct lpt_softc), lpt_isa_probe, lpt_isa_attach
};
+/*
+ * Logic:
+ * 1) You should be able to write to and read back the same value
+ * to the data port. Do an alternating zeros, alternating ones,
+ * walking zero, and walking one test to check for stuck bits.
+ *
+ * 2) You should be able to write to and read back the same value
+ * to the control port lower 5 bits, the upper 3 bits are reserved
+ * per the IBM PC technical reference manauls and different boards
+ * do different things with them. Do an alternating zeros, alternating
+ * ones, walking zero, and walking one test to check for stuck bits.
+ *
+ * Some printers drag the strobe line down when the are powered off
+ * so this bit has been masked out of the control port test.
+ *
+ * XXX Some printers may not like a fast pulse on init or strobe, I
+ * don't know at this point, if that becomes a problem these bits
+ * should be turned off in the mask byte for the control port test.
+ *
+ * 3) Set the data and control ports to a value of 0
+ */
int
lpt_isa_probe(parent, match, aux)
struct device *parent;
struct isa_attach_args *ia = aux;
bus_space_tag_t iot;
bus_space_handle_t ioh;
- u_long base;
- u_char mask, data;
+ bus_addr_t base;
+ u_int8_t mask, data;
int i, rv;
#ifdef DEBUG
if (ia->ia_irq != IRQUNK)
printf("\n");
- else
+ else {
+ sc->sc_flags |= LPT_POLLED;
printf(": polled\n");
+ }
- sc->sc_iobase = ia->ia_iobase;
- sc->sc_irq = ia->ia_irq;
sc->sc_state = 0;
iot = sc->sc_iot = ia->ia_iot;
- if (bus_space_map(iot, sc->sc_iobase, LPT_NPORTS, 0, &ioh))
+ if (bus_space_map(iot, ia->ia_iobase, LPT_NPORTS, 0, &ioh))
panic("lpt_isa_attach: couldn't map I/O ports");
sc->sc_ioh = ioh;
+++ /dev/null
-/* $NetBSD: lptreg.h,v 1.4 1994/10/27 04:17:56 cgd Exp $ */
-
-/*-
- * Copyright (c) 1990 The Regents of the University of California.
- * All rights reserved.
- *
- * This code is derived from software contributed to Berkeley by
- * William Jolitz.
- *
- * 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 the University of
- * California, Berkeley and its contributors.
- * 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 REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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.
- *
- * @(#)lptreg.h 1.1 (Berkeley) 12/19/90
- */
-
-/*
- * AT Parallel Port (for lineprinter)
- * Interface port and bit definitions
- * Written by William Jolitz 12/18/90
- * Copyright (C) William Jolitz 1990
- */
-
-#define lpt_data 0 /* Data to/from printer (R/W) */
-
-#define lpt_status 1 /* Status of printer (R) */
-#define LPS_NERR 0x08 /* printer no error */
-#define LPS_SELECT 0x10 /* printer selected */
-#define LPS_NOPAPER 0x20 /* printer out of paper */
-#define LPS_NACK 0x40 /* printer no ack of data */
-#define LPS_NBSY 0x80 /* printer no ack of data */
-
-#define lpt_control 2 /* Control printer (R/W) */
-#define LPC_STROBE 0x01 /* strobe data to printer */
-#define LPC_AUTOLF 0x02 /* automatic linefeed */
-#define LPC_NINIT 0x04 /* initialize printer */
-#define LPC_SELECT 0x08 /* printer selected */
-#define LPC_IENABLE 0x10 /* printer out of paper */
-
-#define LPT_NPORTS 8
projects / openbsd / commitdiff