--- /dev/null
+/* $OpenBSD: com_lbus.c,v 1.1 1997/03/23 10:14:58 pefo 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 Serial ports
+ */
+
+#include <sys/param.h>
+#include <sys/systm.h>
+#include <sys/device.h>
+#include <sys/tty.h>
+
+#include <machine/autoconf.h>
+#include <machine/bus.h>
+#include <machine/intr.h>
+
+#include <dev/isa/isavar.h> /* XXX for isa_chipset_tag_t in com_softc */
+
+#include <dev/ic/comreg.h>
+#include <dev/ic/comvar.h>
+#include <dev/ic/ns16550reg.h>
+
+/* Macros to clear/set/test flags. */
+#define SET(t, f) (t) |= (f)
+#define CLR(t, f) (t) &= ~(f)
+#define ISSET(t, f) ((t) & (f))
+
+int com_localbus_probe __P((struct device *, void *, void *));
+void com_localbus_attach __P((struct device *, struct device *, void *));
+
+
+struct cfattach com_localbus_ca = {
+ sizeof(struct com_softc), com_localbus_probe, com_localbus_attach
+};
+
+int
+com_localbus_probe(parent, match, aux)
+ struct device *parent;
+ void *match, *aux;
+{
+ bus_space_tag_t iot;
+ bus_space_handle_t ioh;
+ int iobase, needioh;
+ int rv = 1;
+ struct confargs *ca = aux;
+
+ if(!BUS_MATCHNAME(ca, "com"))
+ return(0);
+ iobase = (long)BUS_CVTADDR(ca);
+ iot = &arc_bus;
+ needioh = 1;
+
+ /* if it's in use as console, it's there. */
+ if (iobase == comconsaddr && !comconsattached)
+ goto out;
+
+ if (needioh && bus_space_map(iot, iobase, COM_NPORTS, 0, &ioh)) {
+ rv = 0;
+ goto out;
+ }
+ rv = comprobe1(iot, ioh, iobase);
+ if (needioh)
+ bus_space_unmap(iot, ioh, COM_NPORTS);
+
+out:
+ return (rv);
+}
+
+void
+com_localbus_attach(parent, self, aux)
+ struct device *parent, *self;
+ void *aux;
+{
+ struct com_softc *sc = (void *)self;
+ int iobase;
+ bus_space_tag_t iot;
+ bus_space_handle_t ioh;
+ struct confargs *ca = aux;
+
+ sc->sc_hwflags = 0;
+ sc->sc_swflags = 0;
+ sc->sc_iobase = iobase = (bus_addr_t)BUS_CVTADDR(ca);
+ sc->sc_ioh = ioh = (bus_space_handle_t)iobase;
+ sc->sc_iot = iot = &arc_bus;
+
+ if (iobase == comconsaddr) {
+ comconsattached = 1;
+
+ /*
+ * Need to reset baud rate, etc. of next print so reset
+ * comconsinit. Also make sure console is always "hardwired".
+ */
+ delay(1000); /* wait for output to finish */
+ comconsinit = 0;
+ SET(sc->sc_hwflags, COM_HW_CONSOLE);
+ SET(sc->sc_swflags, COM_SW_SOFTCAR);
+ }
+
+
+ /* look for a NS 16550AF UART with FIFOs */
+ bus_space_write_1(iot, ioh, com_fifo,
+ FIFO_ENABLE | FIFO_RCV_RST | FIFO_XMT_RST | FIFO_TRIGGER_14);
+ delay(100);
+ if (ISSET(bus_space_read_1(iot, ioh, com_iir), IIR_FIFO_MASK) ==
+ IIR_FIFO_MASK)
+ if (ISSET(bus_space_read_1(iot, ioh, com_fifo),
+ FIFO_TRIGGER_14) == FIFO_TRIGGER_14) {
+ SET(sc->sc_hwflags, COM_HW_FIFO);
+ printf(": ns16550a, working fifo\n");
+ } else
+ printf(": ns16550, broken fifo\n");
+ else
+ printf(": ns8250 or ns16450, no fifo\n");
+ bus_space_write_1(iot, ioh, com_fifo, 0);
+
+ /* disable interrupts */
+ bus_space_write_1(iot, ioh, com_ier, 0);
+ bus_space_write_1(iot, ioh, com_mcr, 0);
+
+ BUS_INTR_ESTABLISH(ca, comintr, (void *)(long)sc);
+
+#ifdef KGDB
+ if (kgdb_dev == makedev(commajor, unit)) {
+ if (ISSET(sc->sc_hwflags, COM_HW_CONSOLE))
+ kgdb_dev = -1; /* can't debug over console port */
+ else {
+ cominit(iot, ioh, kgdb_rate);
+ if (kgdb_debug_init) {
+ /*
+ * Print prefix of device name,
+ * let kgdb_connect print the rest.
+ */
+ printf("%s: ", sc->sc_dev.dv_xname);
+ kgdb_connect(1);
+ } else
+ printf("%s: kgdb enabled\n",
+ sc->sc_dev.dv_xname);
+ }
+ }
+#endif
+
+ /* XXX maybe move up some? */
+ if (ISSET(sc->sc_hwflags, COM_HW_CONSOLE))
+ printf("%s: console\n", sc->sc_dev.dv_xname);
+}
--- /dev/null
+/* $OpenBSD: lpt_lbus.c,v 1.1 1997/03/23 10:14:58 pefo 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/device.h>
+
+#include <machine/autoconf.h>
+#include <machine/bus.h>
+#include <machine/intr.h>
+
+#include <dev/ic/lptreg.h>
+#include <dev/ic/lptvar.h>
+
+int lpt_localbus_probe __P((struct device *, void *, void *));
+void lpt_localbus_attach __P((struct device *, struct device *, void *));
+
+struct cfattach lpt_localbus_ca = {
+ sizeof(struct lpt_softc), lpt_localbus_probe, lpt_localbus_attach
+};
+
+int
+lpt_localbus_probe(parent, match, aux)
+ struct device *parent;
+ void *match, *aux;
+{
+ struct confargs *ca = aux;
+ bus_space_tag_t iot;
+ bus_space_handle_t ioh;
+ bus_addr_t base;
+ u_int8_t mask, data;
+ int i;
+
+#ifdef DEBUG
+#define ABORT \
+ do { \
+ printf("lpt_localbus_probe: mask %x data %x failed\n", mask, \
+ data); \
+ return 0; \
+ } while (0)
+#else
+#define ABORT return 0
+#endif
+
+ if(!BUS_MATCHNAME(ca, "lpt"))
+ return(0);
+
+ iot = &arc_bus;
+ base = (bus_addr_t)BUS_CVTADDR(ca);
+ ioh = (bus_space_handle_t)base;
+
+ 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);
+
+ return 1;
+}
+
+void
+lpt_localbus_attach(parent, self, aux)
+ struct device *parent, *self;
+ void *aux;
+{
+ struct lpt_softc *sc = (void *)self;
+ struct confargs *ca = aux;
+ bus_space_tag_t iot;
+ bus_space_handle_t ioh;
+
+ printf("\n");
+
+ sc->sc_state = 0;
+ iot = sc->sc_iot = &arc_bus;
+ sc->sc_ioh = (bus_space_handle_t)BUS_CVTADDR(ca);
+
+ bus_space_write_1(iot, ioh, lpt_control, LPC_NINIT);
+
+ BUS_INTR_ESTABLISH(ca, lptintr, sc);
+}
projects / openbsd / commitdiff