NetBSD/sys/dev/acpi/com_acpi.c

163 lines
4.3 KiB
C

/* $NetBSD: com_acpi.c,v 1.7 2003/01/09 12:23:28 jdolecek Exp $ */
/*
* Copyright (c) 2002 Jared D. McNeill <jmcneill@invisible.ca>
* 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. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 AUTHOR 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.
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: com_acpi.c,v 1.7 2003/01/09 12:23:28 jdolecek Exp $");
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/errno.h>
#include <sys/ioctl.h>
#include <sys/syslog.h>
#include <sys/device.h>
#include <sys/proc.h>
#include <sys/termios.h>
#include <machine/bus.h>
#include <dev/isa/isavar.h>
#include <dev/isa/isadmavar.h>
#include <dev/acpi/acpica.h>
#include <dev/acpi/acpireg.h>
#include <dev/acpi/acpivar.h>
#include <dev/ic/comvar.h>
int com_acpi_match(struct device *, struct cfdata *, void *);
void com_acpi_attach(struct device *, struct device *, void *);
struct com_acpi_softc {
struct com_softc sc_com;
void *sc_ih;
};
CFATTACH_DECL(com_acpi, sizeof(struct com_acpi_softc), com_acpi_match,
com_acpi_attach, NULL, NULL);
/*
* Supported device IDs
*/
static const char * const com_acpi_ids[] = {
"PNP0500", /* Standard PC COM port */
"PNP0501", /* 16550A-compatible COM port */
"PNP0510", /* Generic IRDA-compatible device */
"PNP0511", /* Generic IRDA-compatible device */
"IBM0071", /* IBM ThinkPad IRDA device */
NULL
};
/*
* com_acpi_match: autoconf(9) match routine
*/
int
com_acpi_match(struct device *parent, struct cfdata *match, void *aux)
{
struct acpi_attach_args *aa = aux;
const char *id;
int i;
if (aa->aa_node->ad_type != ACPI_TYPE_DEVICE)
return 0;
for (i = 0; (id = com_acpi_ids[i]) != NULL; ++i) {
if (strcmp(aa->aa_node->ad_devinfo.HardwareId, id) == 0)
return 1;
}
/* No matches found */
return 0;
}
/*
* com_acpi_attach: autoconf(9) attach routine
*/
void
com_acpi_attach(struct device *parent, struct device *self, void *aux)
{
struct com_acpi_softc *asc = (struct com_acpi_softc *)self;
struct com_softc *sc = &asc->sc_com;
struct acpi_attach_args *aa = aux;
struct acpi_resources res;
struct acpi_io *io;
struct acpi_irq *irq;
ACPI_STATUS rv;
printf("\n");
/* parse resources */
rv = acpi_resource_parse(&sc->sc_dev, aa->aa_node, &res,
&acpi_resource_parse_ops_default);
if (rv != AE_OK) {
printf("%s: unable to parse resources\n", sc->sc_dev.dv_xname);
return;
}
/* find our i/o registers */
io = acpi_res_io(&res, 0);
if (io == NULL) {
printf("%s: unable to find i/o register resource\n",
sc->sc_dev.dv_xname);
return;
}
/* find our IRQ */
irq = acpi_res_irq(&res, 0);
if (irq == NULL) {
printf("%s: unable to find irq resource\n",
sc->sc_dev.dv_xname);
return;
}
sc->sc_iot = aa->aa_iot;
if (!com_is_console(aa->aa_iot, io->ar_base, &sc->sc_ioh)) {
if (bus_space_map(sc->sc_iot, io->ar_base, io->ar_length,
0, &sc->sc_ioh)) {
printf("%s: can't map i/o space\n",
sc->sc_dev.dv_xname);
return;
}
}
sc->sc_iobase = io->ar_base;
printf("%s", sc->sc_dev.dv_xname);
if (comprobe1(sc->sc_iot, sc->sc_ioh) == 0) {
printf(": com probe failed\n");
return;
}
sc->sc_frequency = 115200 * 16;
com_attach_subr(sc);
asc->sc_ih = isa_intr_establish(aa->aa_ic, irq->ar_irq,
(irq->ar_type == ACPI_EDGE_SENSITIVE) ? IST_EDGE : IST_LEVEL,
IPL_SERIAL, comintr, sc);
}