NetBSD/sys/dev/pcmcia/com_pcmcia.c

375 lines
10 KiB
C

/* $NetBSD: com_pcmcia.c,v 1.17 1998/11/19 00:04:02 thorpej Exp $ */
/*-
* Copyright (c) 1998 The NetBSD Foundation, Inc.
* All rights reserved.
*
* This code is derived from software contributed to The NetBSD Foundation
* by Charles M. Hannum.
*
* 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 NetBSD
* Foundation, Inc. and its contributors.
* 4. Neither the name of The NetBSD Foundation 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 NETBSD FOUNDATION, INC. 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 FOUNDATION 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.
*/
/*-
* 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 <sys/param.h>
#include <sys/systm.h>
#include <sys/ioctl.h>
#include <sys/select.h>
#include <sys/tty.h>
#include <sys/proc.h>
#include <sys/user.h>
#include <sys/conf.h>
#include <sys/file.h>
#include <sys/uio.h>
#include <sys/kernel.h>
#include <sys/syslog.h>
#include <sys/types.h>
#include <sys/device.h>
#include <machine/intr.h>
#include <machine/bus.h>
#include <dev/pcmcia/pcmciavar.h>
#include <dev/pcmcia/pcmciareg.h>
#include <dev/pcmcia/pcmciadevs.h>
#include <dev/ic/comreg.h>
#include <dev/ic/comvar.h>
#include <dev/isa/isareg.h>
struct com_dev {
char *name;
char *cis1_info[4];
};
/* Devices that we need to match by CIS strings */
static struct com_dev com_devs[] = {
{ PCMCIA_STR_MEGAHERTZ_XJ2288,
PCMCIA_CIS_MEGAHERTZ_XJ2288 },
};
static int com_devs_size = sizeof(com_devs) / sizeof(com_devs[0]);
static struct com_dev *com_dev_match __P((struct pcmcia_card *));
int com_pcmcia_match __P((struct device *, struct cfdata *, void *));
void com_pcmcia_attach __P((struct device *, struct device *, void *));
int com_pcmcia_detach __P((struct device *, int));
void com_pcmcia_cleanup __P((void *));
int com_pcmcia_enable __P((struct com_softc *));
void com_pcmcia_disable __P((struct com_softc *));
int com_pcmcia_enable1 __P((struct com_softc *));
void com_pcmcia_disable1 __P((struct com_softc *));
struct com_pcmcia_softc {
struct com_softc sc_com; /* real "com" softc */
/* PCMCIA-specific goo */
struct pcmcia_io_handle sc_pcioh; /* PCMCIA i/o space info */
int sc_io_window; /* our i/o window */
struct pcmcia_function *sc_pf; /* our PCMCIA function */
void *sc_ih; /* interrupt handler */
};
struct cfattach com_pcmcia_ca = {
sizeof(struct com_pcmcia_softc), com_pcmcia_match, com_pcmcia_attach,
com_pcmcia_detach, com_activate
};
/* Look for pcmcia cards with particular CIS strings */
static struct com_dev *
com_dev_match(card)
struct pcmcia_card *card;
{
int i, j;
for (i = 0; i < com_devs_size; i++) {
for (j = 0; j < 4; j++)
if (com_devs[i].cis1_info[j] &&
strcmp(com_devs[i].cis1_info[j],
card->cis1_info[j]))
break;
if (j == 4)
return &com_devs[i];
}
return NULL;
}
int
com_pcmcia_match(parent, match, aux)
struct device *parent;
struct cfdata *match;
void *aux;
{
int comportmask;
struct pcmcia_attach_args *pa = aux;
struct pcmcia_config_entry *cfe;
/* 1. Does it claim to be a serial device? */
if (pa->pf->function == PCMCIA_FUNCTION_SERIAL)
return 1;
/* 2. Does it have all four 'standard' port ranges? */
comportmask = 0;
for (cfe = pa->pf->cfe_head.sqh_first; cfe;
cfe = cfe->cfe_list.sqe_next) {
switch (cfe->iospace[0].start) {
case IO_COM1:
comportmask |= 1;
break;
case IO_COM2:
comportmask |= 2;
break;
case IO_COM3:
comportmask |= 4;
break;
case IO_COM4:
comportmask |= 8;
break;
}
}
if (comportmask == 15)
return 1;
/* 3. Is this a card we know about? */
if (com_dev_match(pa->card) != NULL)
return 1;
return 0;
}
void
com_pcmcia_attach(parent, self, aux)
struct device *parent, *self;
void *aux;
{
struct com_pcmcia_softc *psc = (void *) self;
struct com_softc *sc = &psc->sc_com;
struct pcmcia_attach_args *pa = aux;
struct pcmcia_config_entry *cfe;
int autoalloc = 0;
psc->sc_pf = pa->pf;
retry:
/* find a cfe we can use */
for (cfe = pa->pf->cfe_head.sqh_first; cfe;
cfe = cfe->cfe_list.sqe_next) {
#if 0
/*
* Some modem cards (e.g. Xircom CM33) also have
* mem space. Don't bother with this check.
*/
if (cfe->num_memspace != 0)
continue;
#endif
if (cfe->num_iospace != 1)
continue;
if (autoalloc == 1) {
if (cfe->iomask == 3) {
if (!pcmcia_io_alloc(pa->pf, 0, cfe->iospace[0].length,
cfe->iospace[0].length,
&psc->sc_pcioh)) {
goto found;
}
}
} else {
if (!pcmcia_io_alloc(pa->pf, cfe->iospace[0].start,
cfe->iospace[0].length, 0, &psc->sc_pcioh)) {
goto found;
}
}
}
if (autoalloc == 0) {
autoalloc = 1;
goto retry;
} else if (!cfe) {
printf(": can't allocate i/o space\n");
return;
}
found:
sc->sc_iot = psc->sc_pcioh.iot;
sc->sc_ioh = psc->sc_pcioh.ioh;
/* Enable the card. */
pcmcia_function_init(pa->pf, cfe);
if (com_pcmcia_enable1(sc))
printf(": function enable failed\n");
sc->enabled = 1;
/* map in the io space */
if (pcmcia_io_map(pa->pf, ((cfe->flags & PCMCIA_CFE_IO16) ?
PCMCIA_WIDTH_IO16 : PCMCIA_WIDTH_IO8), 0, psc->sc_pcioh.size,
&psc->sc_pcioh, &psc->sc_io_window)) {
printf(": can't map i/o space\n");
return;
}
sc->sc_iobase = -1;
sc->sc_frequency = COM_FREQ;
sc->enable = com_pcmcia_enable;
sc->disable = com_pcmcia_disable;
printf(": serial device\n%s", sc->sc_dev.dv_xname);
com_attach_subr(sc);
sc->enabled = 0;
com_pcmcia_disable1(sc);
}
int
com_pcmcia_detach(self, flags)
struct device *self;
int flags;
{
struct com_pcmcia_softc *psc = (struct com_pcmcia_softc *)self;
int error;
if ((error = com_detach(self, flags)) != 0)
return (error);
/* Unmap our i/o window. */
pcmcia_io_unmap(psc->sc_pf, psc->sc_io_window);
/* Free our i/o space. */
pcmcia_io_free(psc->sc_pf, &psc->sc_pcioh);
return (0);
}
int
com_pcmcia_enable(sc)
struct com_softc *sc;
{
struct com_pcmcia_softc *psc = (struct com_pcmcia_softc *) sc;
struct pcmcia_function *pf = psc->sc_pf;
/* establish the interrupt. */
psc->sc_ih = pcmcia_intr_establish(pf, IPL_SERIAL, comintr, sc);
if (psc->sc_ih == NULL) {
printf("%s: couldn't establish interrupt\n",
sc->sc_dev.dv_xname);
return (1);
}
return com_pcmcia_enable1(sc);
}
int
com_pcmcia_enable1(sc)
struct com_softc *sc;
{
struct com_pcmcia_softc *psc = (struct com_pcmcia_softc *) sc;
struct pcmcia_function *pf = psc->sc_pf;
int ret;
if ((ret = pcmcia_function_enable(pf)))
return(ret);
if (psc->sc_pf->sc->card.product == PCMCIA_PRODUCT_3COM_3C562) {
int reg;
/* turn off the ethernet-disable bit */
reg = pcmcia_ccr_read(pf, PCMCIA_CCR_OPTION);
if (reg & 0x08) {
reg &= ~0x08;
pcmcia_ccr_write(pf, PCMCIA_CCR_OPTION, reg);
}
}
return(ret);
}
void
com_pcmcia_disable(sc)
struct com_softc *sc;
{
struct com_pcmcia_softc *psc = (struct com_pcmcia_softc *) sc;
com_pcmcia_disable1(sc);
pcmcia_intr_disestablish(psc->sc_pf, psc->sc_ih);
}
void
com_pcmcia_disable1(sc)
struct com_softc *sc;
{
struct com_pcmcia_softc *psc = (struct com_pcmcia_softc *) sc;
pcmcia_function_disable(psc->sc_pf);
}