263 lines
8.1 KiB
C
263 lines
8.1 KiB
C
/* $NetBSD: com_mca.c,v 1.1 2001/03/19 21:56:43 jdolecek Exp $ */
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/*-
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* Copyright (c) 1998 The NetBSD Foundation, Inc.
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* All rights reserved.
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*
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* This code is derived from software contributed to The NetBSD Foundation
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* by Charles M. Hannum.
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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 the NetBSD
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* Foundation, Inc. and its contributors.
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* 4. Neither the name of The NetBSD Foundation nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE NETBSD FOUNDATION, INC. AND CONTRIBUTORS
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* ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE FOUNDATION OR CONTRIBUTORS
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* BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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/*-
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* Copyright (c) 1991 The Regents of the University of California.
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* All rights reserved.
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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 the University of
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* California, Berkeley and its contributors.
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* 4. Neither the name of the University nor the names of its contributors
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* may be used to endorse or promote products derived from this software
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* without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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* @(#)com.c 7.5 (Berkeley) 5/16/91
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*/
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/*
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* This driver attaches serial port boards and internal modems.
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*/
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/ioctl.h>
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#include <sys/select.h>
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#include <sys/tty.h>
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#include <sys/proc.h>
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#include <sys/user.h>
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#include <sys/file.h>
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#include <sys/uio.h>
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#include <sys/kernel.h>
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#include <sys/syslog.h>
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#include <sys/types.h>
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#include <sys/device.h>
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#include <machine/intr.h>
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#include <machine/bus.h>
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#include <dev/ic/comreg.h>
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#include <dev/ic/comvar.h>
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#include <dev/mca/mcavar.h>
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#include <dev/mca/mcadevs.h>
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struct com_mca_softc {
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struct com_softc sc_com; /* real "com" softc */
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/* MCA-specific goo. */
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void *sc_ih; /* interrupt handler */
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};
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int com_mca_probe __P((struct device *, struct cfdata *, void *));
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void com_mca_attach __P((struct device *, struct device *, void *));
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void com_mca_cleanup __P((void *));
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static int ibm_modem_getcfg __P((struct mca_attach_args *, int *, int *));
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struct cfattach com_mca_ca = {
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sizeof(struct com_mca_softc), com_mca_probe, com_mca_attach
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};
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static const struct com_mca_product {
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u_int32_t cp_prodid; /* MCA product ID */
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const char *cp_name; /* device name */
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int (*cp_getcfg) __P((struct mca_attach_args *, int *iobase, int *irq));
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/* get device i/o base and irq */
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} com_mca_products[] = {
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{ MCA_PRODUCT_IBM_MOD, "IBM Internal Modem", ibm_modem_getcfg },
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{ 0, NULL, NULL },
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};
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static const struct com_mca_product *com_mca_lookup __P((int));
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static const struct com_mca_product *
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com_mca_lookup(ma_id)
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int ma_id;
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{
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const struct com_mca_product *cpp;
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for (cpp = com_mca_products; cpp->cp_name != NULL; cpp++)
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if (cpp->cp_prodid == ma_id)
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return (cpp);
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return (NULL);
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}
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int
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com_mca_probe(parent, match, aux)
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struct device *parent;
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struct cfdata *match;
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void *aux;
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{
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struct mca_attach_args *ma = aux;
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if (com_mca_lookup(ma->ma_id))
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return (1);
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return (0);
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}
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void
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com_mca_attach(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 com_mca_softc *isc = (void *)self;
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struct com_softc *sc = &isc->sc_com;
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int iobase, irq;
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struct mca_attach_args *ma = aux;
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const struct com_mca_product *cpp;
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cpp = com_mca_lookup(ma->ma_id);
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/* get iobase and irq */
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if ((*cpp->cp_getcfg)(ma, &iobase, &irq)) {
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printf(": com_mca_attach: could not get config\n");
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return;
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}
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printf(" slot %d i/o %#x-%#x irq %d: %s\n", ma->ma_slot + 1,
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iobase, iobase + COM_NPORTS - 1,
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irq, cpp->cp_name);
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printf("%s", sc->sc_dev.dv_xname);
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if (bus_space_map(ma->ma_iot, iobase, COM_NPORTS, 0, &sc->sc_ioh)) {
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printf(": can't map i/o space\n");
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return;
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}
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sc->sc_frequency = COM_FREQ;
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sc->sc_iot = ma->ma_iot;
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sc->sc_iobase = iobase;
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com_attach_subr(sc);
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isc->sc_ih = mca_intr_establish(ma->ma_mc, irq, IPL_SERIAL,
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comintr, sc);
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if (isc->sc_ih == NULL) {
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printf("%s: couldn't establish interrupt handler\n",
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sc->sc_dev.dv_xname);
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return;
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}
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/*
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* Shutdown hook for buggy BIOSs that don't recognize the UART
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* without a disabled FIFO.
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* XXX is this necessary on MCA ? --- jdolecek
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*/
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if (shutdownhook_establish(com_mca_cleanup, sc) == NULL)
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panic("com_mca_attach: could not establish shutdown hook");
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}
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void
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com_mca_cleanup(arg)
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void *arg;
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{
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struct com_softc *sc = arg;
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if (ISSET(sc->sc_hwflags, COM_HW_FIFO))
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bus_space_write_1(sc->sc_iot, sc->sc_ioh, com_fifo, 0);
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}
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/* map serial_X to iobase and irq */
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static const struct {
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int iobase;
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int irq;
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} MCA_SERIAL[] = {
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{ 0x03f8, 4 }, /* SERIAL_1 */
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{ 0x02f8, 3 }, /* SERIAL_2 */
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{ 0x3220, 3 }, /* SERIAL_3 */
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{ 0x3228, 3 }, /* SERIAL_4 */
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{ 0x4220, 3 }, /* SERIAL_5 */
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{ 0x4228, 3 }, /* SERIAL_6 */
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{ 0x5220, 3 }, /* SERIAL_7 */
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{ 0x5228, 3 }, /* SERIAL_8 */
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};
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/*
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* Get config for IBM Internal Modem (ID 0xEDFF). This beast doesn't
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* seem to support even AT commands, it's good as example for adding
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* other stuff though.
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*/
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static int
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ibm_modem_getcfg(ma, iobasep, irqp)
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struct mca_attach_args *ma;
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int *iobasep, *irqp;
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{
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int pos2;
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int snum;
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pos2 = mca_conf_read(ma->ma_mc, ma->ma_slot, 2);
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/*
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* POS register 2: (adf pos0)
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* 7 6 5 4 3 2 1 0
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* \__/ \__ enable: 0=adapter disabled, 1=adapter enabled
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* \_____ Serial Configuration: XX=SERIAL_XX
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*/
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snum = (pos2 & 0x0e) >> 1;
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*iobasep = MCA_SERIAL[snum].iobase;
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*irqp = MCA_SERIAL[snum].irq;
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return (0);
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}
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