From 2157b0ba8b467d175588a39d0235e3f42cfa0167 Mon Sep 17 00:00:00 2001 From: Niklas Hallqvist Date: Thu, 18 Sep 1997 13:40:05 +0000 Subject: Merge of NetBSD changes upto last week or so, with the exception of stand/ --- sys/arch/amiga/dev/com_supio.c | 266 +++++++++++++++++++++++++++++++++++++++++ 1 file changed, 266 insertions(+) create mode 100644 sys/arch/amiga/dev/com_supio.c (limited to 'sys/arch/amiga/dev/com_supio.c') diff --git a/sys/arch/amiga/dev/com_supio.c b/sys/arch/amiga/dev/com_supio.c new file mode 100644 index 00000000000..bb2fb7563c8 --- /dev/null +++ b/sys/arch/amiga/dev/com_supio.c @@ -0,0 +1,266 @@ +/* $OpenBSD: com_supio.c,v 1.1 1997/09/18 13:39:44 niklas Exp $ */ +/* $NetBSD: com_supio.c,v 1.3 1997/08/27 20:41:30 is Exp $ */ + +/*- + * Copyright (c) 1993, 1994, 1995, 1996 + * Charles M. Hannum. All rights reserved. + * Copyright (c) 1991 The Regents of the University of California. + * 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 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. + * + * @(#)com.c 7.5 (Berkeley) 5/16/91 + */ + +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include +#include + +#include +#include + +#include +#include +#include + +#include +#include + +struct comsupio_softc { + struct com_softc sc_com; + struct isr sc_isr; +}; + +int com_supio_match __P((struct device *, void *, void *)); +void com_supio_attach __P((struct device *, struct device *, void *)); +void com_supio_cleanup __P((void *)); + +static int comconsaddr; +static bus_space_handle_t comconsioh; +#if 0 +static int comconsattached; +static bus_space_tag_t comconstag; +static int comconsrate; +static tcflag_t comconscflag; +#endif + +struct cfattach com_supio_ca = { + sizeof(struct comsupio_softc), com_supio_match, com_supio_attach +}; + +/* 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_supio_match(parent, match, aux) + struct device *parent; + void *match; + void *aux; +{ + struct cfdata *cfp = match; + bus_space_tag_t iot; + int iobase; + int rv = 1; + struct supio_attach_args *supa = aux; + + iot = supa->supio_iot; + iobase = supa->supio_iobase; + + if (strcmp(supa->supio_name,"com") || (cfp->cf_unit > 1)) + return 0; +#if 0 + /* if it's in use as console, it's there. */ + if (iobase != comconsaddr || comconsattached) { + if (bus_space_map(iot, iobase, COM_NPORTS, 0, &ioh)) { + return 0; + } + rv = comprobe1(iot, ioh, iobase); + bus_space_unmap(iot, ioh, COM_NPORTS); + } +#endif + return (rv); +} + +void +com_supio_attach(parent, self, aux) + struct device *parent, *self; + void *aux; +{ +#ifdef __OpenBSD__ + struct comsupio_softc *sc = (void *)self; + struct com_softc *csc = &sc->sc_com; + int iobase; + bus_space_tag_t iot; + bus_space_handle_t ioh; + struct supio_attach_args *supa = aux; + + csc->sc_hwflags = 0; + csc->sc_swflags = 0; + + iobase = csc->sc_iobase = supa->supio_iobase; + iot = csc->sc_iot = supa->supio_iot; + if (iobase != comconsaddr) { + if (bus_space_map(iot, iobase, COM_NPORTS, 0, &ioh)) + panic("comattach: io mapping failed"); + } else + ioh = comconsioh; + + csc->sc_iot = iot; + csc->sc_ioh = ioh; + csc->sc_iobase = iobase; + + 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(csc->sc_hwflags, COM_HW_CONSOLE); + SET(csc->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(csc->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); + + if (amiga_ttyspl < (PSL_S|PSL_IPL5)) { + printf("%s: raising amiga_ttyspl from 0x%x to 0x%x\n", + csc->sc_dev.dv_xname, amiga_ttyspl, PSL_S|PSL_IPL5); + amiga_ttyspl = PSL_S|PSL_IPL5; + } + sc->sc_isr.isr_intr = comintr; + sc->sc_isr.isr_arg = csc; + sc->sc_isr.isr_ipl = 5; + add_isr(&sc->sc_isr); + +#ifdef KGDB + if (kgdb_dev == makedev(commajor, unit)) { + if (ISSET(csc->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: ", csc->sc_dev.dv_xname); + kgdb_connect(1); + } else + printf("%s: kgdb enabled\n", + csc->sc_dev.dv_xname); + } + } +#endif + + /* XXX maybe move up some? */ + if (ISSET(csc->sc_hwflags, COM_HW_CONSOLE)) + printf("%s: console\n", csc->sc_dev.dv_xname); +#else /* __OpenBSD__ */ + struct comsupio_softc *sc = (void *)self; + struct com_softc *csc = &sc->sc_com; + int iobase; + bus_space_tag_t iot; + struct supio_attach_args *supa = aux; + + /* + * We're living on a superio chip. + */ + iobase = csc->sc_iobase = supa->supio_iobase; + iot = csc->sc_iot = supa->supio_iot; + if (iobase != comconsaddr) { + if (bus_space_map(iot, iobase, COM_NPORTS, 0, &csc->sc_ioh)) + panic("comattach: io mapping failed"); + } else + csc->sc_ioh = comconsioh; + + printf(" port 0x%x", iobase); + com_attach_subr(csc); + + if (amiga_ttyspl < (PSL_S|PSL_IPL5)) { + printf("%s: raising amiga_ttyspl from 0x%x to 0x%x\n", + csc->sc_dev.dv_xname, amiga_ttyspl, PSL_S|PSL_IPL5); + amiga_ttyspl = PSL_S|PSL_IPL5; + } + sc->sc_isr.isr_intr = comintr; + sc->sc_isr.isr_arg = csc; + sc->sc_isr.isr_ipl = 5; + add_isr(&sc->sc_isr); + + /* + * Shutdown hook for buggy BIOSs that don't recognize the UART + * without a disabled FIFO. + */ + if (shutdownhook_establish(com_supio_cleanup, csc) == NULL) + panic("comsupio: could not establish shutdown hook"); +#endif /* __OpenBSD__ */ +} + +void +com_supio_cleanup(arg) + void *arg; +{ + struct com_softc *sc = arg; + + if (ISSET(sc->sc_hwflags, COM_HW_FIFO)) + bus_space_write_1(sc->sc_iot, sc->sc_ioh, com_fifo, 0); +} -- cgit v1.2.3