1996-05-13 03:51:23 +04:00
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/* $NetBSD: rtfps.c,v 1.23 1996/05/12 23:53:29 mycroft Exp $ */
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1994-10-27 07:14:23 +03:00
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1994-08-07 14:45:53 +04:00
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/*
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1996-03-10 12:01:20 +03:00
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* Copyright (c) 1996 Christopher G. Demetriou. All rights reserved.
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1995-01-04 01:38:54 +03:00
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* Copyright (c) 1995 Charles Hannum. All rights reserved.
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1994-08-07 14:45:53 +04:00
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*
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1995-01-04 01:38:54 +03:00
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* This code is derived from public-domain software written by
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* Roland McGrath.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by Charles Hannum.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
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* THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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1994-08-07 14:45:53 +04:00
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*/
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#include <sys/param.h>
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1996-05-05 23:49:51 +04:00
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#include <sys/systm.h>
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1994-08-07 14:45:53 +04:00
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#include <sys/device.h>
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1996-04-15 22:55:23 +04:00
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#include <sys/termios.h>
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1994-08-07 14:45:53 +04:00
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1996-03-10 12:01:20 +03:00
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#include <machine/bus.h>
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1996-05-13 03:51:23 +04:00
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#include <machine/intr.h>
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1994-08-07 14:45:53 +04:00
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1995-04-17 16:06:30 +04:00
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#include <dev/isa/isavar.h>
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1996-03-09 03:09:04 +03:00
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#include <dev/isa/comreg.h>
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1996-03-09 04:03:59 +03:00
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#include <dev/isa/comvar.h>
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1996-03-09 03:09:04 +03:00
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#define NSLAVES 4
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1994-08-07 14:45:53 +04:00
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struct rtfps_softc {
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struct device sc_dev;
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1995-04-17 16:06:30 +04:00
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void *sc_ih;
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1994-08-07 14:45:53 +04:00
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1996-03-10 12:01:20 +03:00
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bus_chipset_tag_t sc_bc;
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1994-11-19 00:57:40 +03:00
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int sc_iobase;
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int sc_irqport;
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1996-03-10 12:01:20 +03:00
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bus_io_handle_t sc_irqioh;
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1996-03-09 03:09:04 +03:00
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int sc_alive; /* mask of slave units attached */
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void *sc_slaves[NSLAVES]; /* com device unit numbers */
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1996-03-10 12:01:20 +03:00
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bus_io_handle_t sc_slaveioh[NSLAVES];
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1994-08-07 14:45:53 +04:00
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};
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1996-05-05 23:49:51 +04:00
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int rtfpsprobe __P((struct device *, void *, void *));
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void rtfpsattach __P((struct device *, struct device *, void *));
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1995-04-17 16:06:30 +04:00
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int rtfpsintr __P((void *));
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1996-05-05 23:49:51 +04:00
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int rtfpsprint __P((void *, char *));
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1994-08-07 14:45:53 +04:00
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1996-03-17 03:43:52 +03:00
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struct cfattach rtfps_ca = {
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sizeof(struct rtfps_softc), rtfpsprobe, rtfpsattach
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};
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struct cfdriver rtfps_cd = {
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NULL, "rtfps", DV_TTY
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1994-08-07 14:45:53 +04:00
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};
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int
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rtfpsprobe(parent, self, aux)
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1996-05-05 23:49:51 +04:00
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struct device *parent;
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void *self;
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1994-08-07 14:45:53 +04:00
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void *aux;
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{
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struct isa_attach_args *ia = aux;
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1996-03-10 12:01:20 +03:00
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int iobase = ia->ia_iobase;
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bus_chipset_tag_t bc = ia->ia_bc;
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bus_io_handle_t ioh;
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int i, rv = 1;
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1994-08-07 14:45:53 +04:00
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/*
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* Do the normal com probe for the first UART and assume
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1996-03-10 12:01:20 +03:00
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* its presence, and the ability to map the other UARTS,
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* means there is a multiport board there.
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1994-08-07 14:45:53 +04:00
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* XXX Needs more robustness.
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*/
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1996-03-10 12:01:20 +03:00
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/* if the first port is in use as console, then it. */
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if (iobase == comconsaddr && !comconsattached)
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goto checkmappings;
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if (bus_io_map(bc, iobase, COM_NPORTS, &ioh)) {
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rv = 0;
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goto out;
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}
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rv = comprobe1(bc, ioh, iobase);
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bus_io_unmap(bc, ioh, COM_NPORTS);
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if (rv == 0)
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goto out;
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1994-11-07 12:03:48 +03:00
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1996-03-10 12:01:20 +03:00
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checkmappings:
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for (i = 1; i < NSLAVES; i++) {
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iobase += COM_NPORTS;
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if (iobase == comconsaddr && !comconsattached)
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continue;
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if (bus_io_map(bc, iobase, COM_NPORTS, &ioh)) {
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rv = 0;
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goto out;
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}
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bus_io_unmap(bc, ioh, COM_NPORTS);
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}
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out:
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if (rv)
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ia->ia_iosize = NSLAVES * COM_NPORTS;
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return (rv);
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1994-11-07 12:03:48 +03:00
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}
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int
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1996-03-10 12:01:20 +03:00
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rtfpsprint(aux, pnp)
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1994-11-07 12:03:48 +03:00
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void *aux;
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1996-03-10 12:01:20 +03:00
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char *pnp;
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1994-11-07 12:03:48 +03:00
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{
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1996-03-10 12:01:20 +03:00
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struct commulti_attach_args *ca = aux;
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1994-11-07 12:03:48 +03:00
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1996-03-10 12:01:20 +03:00
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if (pnp)
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printf("com at %s", pnp);
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1996-03-09 04:03:59 +03:00
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printf(" slave %d", ca->ca_slave);
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1996-03-10 12:01:20 +03:00
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return (UNCONF);
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1994-08-07 14:45:53 +04:00
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}
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void
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rtfpsattach(parent, self, aux)
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struct device *parent, *self;
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void *aux;
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{
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struct rtfps_softc *sc = (void *)self;
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struct isa_attach_args *ia = aux;
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1996-03-09 04:03:59 +03:00
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struct commulti_attach_args ca;
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1994-11-19 00:57:40 +03:00
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static int irqport[] = {
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1994-11-19 01:25:12 +03:00
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IOBASEUNK, IOBASEUNK, IOBASEUNK, IOBASEUNK,
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IOBASEUNK, IOBASEUNK, IOBASEUNK, IOBASEUNK,
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IOBASEUNK, 0x2f2, 0x6f2, 0x6f3,
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IOBASEUNK, IOBASEUNK, IOBASEUNK, IOBASEUNK
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1994-11-07 12:03:48 +03:00
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};
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1996-05-05 23:49:51 +04:00
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bus_chipset_tag_t bc = ia->ia_bc;
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int i;
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1994-08-07 14:45:53 +04:00
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1996-03-10 12:01:20 +03:00
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sc->sc_bc = ia->ia_bc;
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1994-08-07 14:45:53 +04:00
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sc->sc_iobase = ia->ia_iobase;
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1994-11-19 01:25:12 +03:00
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if (ia->ia_irq >= 16 || irqport[ia->ia_irq] == IOBASEUNK)
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1994-11-07 12:03:48 +03:00
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panic("rtfpsattach: invalid irq");
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sc->sc_irqport = irqport[ia->ia_irq];
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1996-03-10 12:01:20 +03:00
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for (i = 0; i < NSLAVES; i++)
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if (bus_io_map(bc, sc->sc_iobase + i * COM_NPORTS, COM_NPORTS,
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&sc->sc_slaveioh[i]))
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panic("rtfpsattach: couldn't map slave %d", i);
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if (bus_io_map(bc, sc->sc_irqport, 1, &sc->sc_irqioh))
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panic("rtfpsattach: couldn't map irq port at 0x%x\n",
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sc->sc_irqport);
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bus_io_write_1(bc, sc->sc_irqioh, 0, 0);
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1994-08-07 14:45:53 +04:00
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printf("\n");
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1996-03-10 12:01:20 +03:00
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for (i = 0; i < NSLAVES; i++) {
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ca.ca_slave = i;
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ca.ca_bc = sc->sc_bc;
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ca.ca_ioh = sc->sc_slaveioh[i];
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ca.ca_iobase = sc->sc_iobase + i * COM_NPORTS;
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ca.ca_noien = 0;
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1996-04-04 11:08:10 +04:00
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sc->sc_slaves[i] = config_found(self, &ca, rtfpsprint);
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if (sc->sc_slaves[i] != NULL)
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1996-03-10 12:01:20 +03:00
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sc->sc_alive |= 1 << i;
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1994-11-07 12:03:48 +03:00
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}
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1994-08-07 14:45:53 +04:00
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1996-04-12 02:27:59 +04:00
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sc->sc_ih = isa_intr_establish(ia->ia_ic, ia->ia_irq, IST_EDGE,
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IPL_TTY, rtfpsintr, sc);
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1994-08-07 14:45:53 +04:00
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}
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int
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1995-04-17 16:06:30 +04:00
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rtfpsintr(arg)
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void *arg;
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1994-08-07 14:45:53 +04:00
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{
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1995-04-17 16:06:30 +04:00
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struct rtfps_softc *sc = arg;
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1996-03-10 12:01:20 +03:00
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bus_chipset_tag_t bc = sc->sc_bc;
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1994-08-07 14:45:53 +04:00
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int alive = sc->sc_alive;
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1996-03-10 12:01:20 +03:00
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bus_io_write_1(bc, sc->sc_irqioh, 0, 0);
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1994-08-07 14:45:53 +04:00
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#define TRY(n) \
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if (alive & (1 << (n))) \
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comintr(sc->sc_slaves[n]);
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TRY(0);
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TRY(1);
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TRY(2);
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TRY(3);
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#undef TRY
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1994-11-07 12:03:48 +03:00
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return (1);
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1994-08-07 14:45:53 +04:00
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}
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