386 lines
10 KiB
C
386 lines
10 KiB
C
/* $NetBSD: com_pcmcia.c,v 1.19 1998/12/24 03:59:00 marc 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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#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/conf.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/pcmcia/pcmciavar.h>
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#include <dev/pcmcia/pcmciareg.h>
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#include <dev/pcmcia/pcmciadevs.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/isa/isareg.h>
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struct com_dev {
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char *name;
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char *cis1_info[4];
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};
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/* Devices that we need to match by CIS strings */
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static struct com_dev com_devs[] = {
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{ PCMCIA_STR_MEGAHERTZ_XJ2288,
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PCMCIA_CIS_MEGAHERTZ_XJ2288 },
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};
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static int com_devs_size = sizeof(com_devs) / sizeof(com_devs[0]);
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static struct com_dev *com_dev_match __P((struct pcmcia_card *));
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int com_pcmcia_match __P((struct device *, struct cfdata *, void *));
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void com_pcmcia_attach __P((struct device *, struct device *, void *));
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int com_pcmcia_detach __P((struct device *, int));
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void com_pcmcia_cleanup __P((void *));
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int com_pcmcia_enable __P((struct com_softc *));
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void com_pcmcia_disable __P((struct com_softc *));
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int com_pcmcia_enable1 __P((struct com_softc *));
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void com_pcmcia_disable1 __P((struct com_softc *));
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struct com_pcmcia_softc {
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struct com_softc sc_com; /* real "com" softc */
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/* PCMCIA-specific goo */
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struct pcmcia_io_handle sc_pcioh; /* PCMCIA i/o space info */
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int sc_io_window; /* our i/o window */
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struct pcmcia_function *sc_pf; /* our PCMCIA function */
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void *sc_ih; /* interrupt handler */
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};
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struct cfattach com_pcmcia_ca = {
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sizeof(struct com_pcmcia_softc), com_pcmcia_match, com_pcmcia_attach,
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com_pcmcia_detach, com_activate
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};
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/* Look for pcmcia cards with particular CIS strings */
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static struct com_dev *
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com_dev_match(card)
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struct pcmcia_card *card;
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{
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int i, j;
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for (i = 0; i < com_devs_size; i++) {
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for (j = 0; j < 4; j++)
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if (com_devs[i].cis1_info[j] &&
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strcmp(com_devs[i].cis1_info[j],
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card->cis1_info[j]))
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break;
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if (j == 4)
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return &com_devs[i];
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}
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return NULL;
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}
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int
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com_pcmcia_match(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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int comportmask;
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struct pcmcia_attach_args *pa = aux;
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struct pcmcia_config_entry *cfe;
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/* 1. Does it claim to be a serial device? */
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if (pa->pf->function == PCMCIA_FUNCTION_SERIAL)
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return 1;
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/* 2. Does it have all four 'standard' port ranges? */
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comportmask = 0;
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for (cfe = pa->pf->cfe_head.sqh_first; cfe;
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cfe = cfe->cfe_list.sqe_next) {
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switch (cfe->iospace[0].start) {
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case IO_COM1:
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comportmask |= 1;
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break;
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case IO_COM2:
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comportmask |= 2;
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break;
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case IO_COM3:
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comportmask |= 4;
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break;
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case IO_COM4:
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comportmask |= 8;
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break;
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}
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}
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if (comportmask == 15)
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return 1;
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/* 3. Is this a card we know about? */
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if (com_dev_match(pa->card) != NULL)
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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_pcmcia_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_pcmcia_softc *psc = (void *) self;
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struct com_softc *sc = &psc->sc_com;
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struct pcmcia_attach_args *pa = aux;
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struct pcmcia_config_entry *cfe;
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int autoalloc = 0;
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psc->sc_pf = pa->pf;
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retry:
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/* find a cfe we can use */
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for (cfe = pa->pf->cfe_head.sqh_first; cfe;
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cfe = cfe->cfe_list.sqe_next) {
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#if 0
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/*
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* Some modem cards (e.g. Xircom CM33) also have
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* mem space. Don't bother with this check.
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*/
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if (cfe->num_memspace != 0)
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continue;
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#endif
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if (cfe->num_iospace != 1)
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continue;
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if (autoalloc == 0) {
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/*
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* cfe->iomask == 3 is our test for the "generic" config table
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* entry, which we want to avoid on the first pass and use
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* exclusively on the second pass.
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*/
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if ((cfe->iomask != 3) && (cfe->iospace[0].start != 0)) {
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if (!pcmcia_io_alloc(pa->pf, cfe->iospace[0].start,
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cfe->iospace[0].length,
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0,
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&psc->sc_pcioh)) {
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goto found;
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}
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}
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} else {
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if (cfe->iomask == 3) {
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if (!pcmcia_io_alloc(pa->pf, 0,
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cfe->iospace[0].length,
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cfe->iospace[0].length,
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&psc->sc_pcioh)) {
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goto found;
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}
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}
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}
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}
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if (autoalloc == 0) {
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autoalloc = 1;
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goto retry;
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} else if (!cfe) {
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printf(": can't allocate i/o space\n");
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return;
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}
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found:
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sc->sc_iot = psc->sc_pcioh.iot;
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sc->sc_ioh = psc->sc_pcioh.ioh;
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/* Enable the card. */
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pcmcia_function_init(pa->pf, cfe);
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if (com_pcmcia_enable1(sc))
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printf(": function enable failed\n");
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sc->enabled = 1;
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/* map in the io space */
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if (pcmcia_io_map(pa->pf, ((cfe->flags & PCMCIA_CFE_IO16) ?
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PCMCIA_WIDTH_IO16 : PCMCIA_WIDTH_IO8), 0, psc->sc_pcioh.size,
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&psc->sc_pcioh, &psc->sc_io_window)) {
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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_iobase = -1;
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sc->sc_frequency = COM_FREQ;
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sc->enable = com_pcmcia_enable;
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sc->disable = com_pcmcia_disable;
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printf(": serial device\n%s", sc->sc_dev.dv_xname);
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com_attach_subr(sc);
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sc->enabled = 0;
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com_pcmcia_disable1(sc);
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}
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int
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com_pcmcia_detach(self, flags)
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struct device *self;
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int flags;
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{
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struct com_pcmcia_softc *psc = (struct com_pcmcia_softc *)self;
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int error;
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if ((error = com_detach(self, flags)) != 0)
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return (error);
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/* Unmap our i/o window. */
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pcmcia_io_unmap(psc->sc_pf, psc->sc_io_window);
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/* Free our i/o space. */
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pcmcia_io_free(psc->sc_pf, &psc->sc_pcioh);
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return (0);
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}
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int
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com_pcmcia_enable(sc)
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struct com_softc *sc;
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{
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struct com_pcmcia_softc *psc = (struct com_pcmcia_softc *) sc;
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struct pcmcia_function *pf = psc->sc_pf;
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/* establish the interrupt. */
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psc->sc_ih = pcmcia_intr_establish(pf, IPL_SERIAL, comintr, sc);
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if (psc->sc_ih == NULL) {
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printf("%s: couldn't establish interrupt\n",
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sc->sc_dev.dv_xname);
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return (1);
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}
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return com_pcmcia_enable1(sc);
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}
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int
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com_pcmcia_enable1(sc)
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struct com_softc *sc;
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{
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struct com_pcmcia_softc *psc = (struct com_pcmcia_softc *) sc;
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struct pcmcia_function *pf = psc->sc_pf;
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int ret;
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if ((ret = pcmcia_function_enable(pf)))
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return(ret);
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if ((psc->sc_pf->sc->card.product == PCMCIA_PRODUCT_3COM_3C562) ||
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(psc->sc_pf->sc->card.product == PCMCIA_PRODUCT_3COM_3CXEM556)) {
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int reg;
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/* turn off the ethernet-disable bit */
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reg = pcmcia_ccr_read(pf, PCMCIA_CCR_OPTION);
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if (reg & 0x08) {
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reg &= ~0x08;
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pcmcia_ccr_write(pf, PCMCIA_CCR_OPTION, reg);
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}
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}
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return(ret);
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}
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void
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com_pcmcia_disable(sc)
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struct com_softc *sc;
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{
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struct com_pcmcia_softc *psc = (struct com_pcmcia_softc *) sc;
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com_pcmcia_disable1(sc);
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pcmcia_intr_disestablish(psc->sc_pf, psc->sc_ih);
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}
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void
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com_pcmcia_disable1(sc)
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struct com_softc *sc;
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{
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struct com_pcmcia_softc *psc = (struct com_pcmcia_softc *) sc;
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pcmcia_function_disable(psc->sc_pf);
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}
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