NetBSD/sys/arch/sparc64/dev/com_ebus.c

213 lines
5.9 KiB
C

/* $NetBSD: com_ebus.c,v 1.21 2004/03/21 15:08:24 pk Exp $ */
/*
* Copyright (c) 1999, 2000 Matthew R. Green
* 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. 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.
*/
/*
* NS Super I/O PC87332VLJ "com" to ebus attachment
*/
#include <sys/cdefs.h>
__KERNEL_RCSID(0, "$NetBSD: com_ebus.c,v 1.21 2004/03/21 15:08:24 pk Exp $");
#include <sys/types.h>
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/device.h>
#include <sys/tty.h>
#include <sys/conf.h>
#include <machine/bus.h>
#include <machine/autoconf.h>
#include <machine/openfirm.h>
#include <dev/ebus/ebusreg.h>
#include <dev/ebus/ebusvar.h>
#include <dev/cons.h>
#include <dev/ic/comvar.h>
#include <dev/sun/kbd_ms_ttyvar.h>
#include "kbd.h"
#include "ms.h"
int com_ebus_match __P((struct device *, struct cfdata *, void *));
void com_ebus_attach __P((struct device *, struct device *, void *));
CFATTACH_DECL(com_ebus, sizeof(struct com_softc),
com_ebus_match, com_ebus_attach, NULL, NULL);
static char *com_names[] = {
"su",
"su_pnp",
NULL
};
int
com_ebus_match(parent, match, aux)
struct device *parent;
struct cfdata *match;
void *aux;
{
struct ebus_attach_args *ea = aux;
int i;
for (i = 0; com_names[i]; i++)
if (strcmp(ea->ea_name, com_names[i]) == 0)
return (1);
if (strcmp(ea->ea_name, "serial") == 0) {
char *compat;
/* Could be anything. */
compat = prom_getpropstring(ea->ea_node, "compatible");
if (strcmp(compat, "su16550") == 0 ||
strcmp(compat, "su") == 0) {
return (1);
}
}
return (0);
}
#define BAUD_BASE (1846200)
void
com_ebus_attach(parent, self, aux)
struct device *parent, *self;
void *aux;
{
struct com_softc *sc = (void *)self;
struct ebus_attach_args *ea = aux;
struct kbd_ms_tty_attach_args kma;
#if (NKBD > 0) || (NMS > 0)
int maj;
extern const struct cdevsw com_cdevsw;
#endif
int i;
int com_is_input;
int com_is_output;
sc->sc_iot = ea->ea_bustag;
sc->sc_iobase = EBUS_ADDR_FROM_REG(&ea->ea_reg[0]);
/*
* Addresses that should be supplied by the prom:
* - normal com registers
* - ns873xx configuration registers
* - DMA space
* The `com' driver does not use DMA accesses, so we can
* ignore that for now. We should enable the com port in
* the ns873xx registers here. XXX
*
* Use the prom address if there.
*/
if (ea->ea_nvaddr)
sparc_promaddr_to_handle(sc->sc_iot, ea->ea_vaddr[0],
&sc->sc_ioh);
else if (bus_space_map(sc->sc_iot, EBUS_ADDR_FROM_REG(&ea->ea_reg[0]),
ea->ea_reg[0].size, 0, &sc->sc_ioh) != 0) {
printf(": can't map register space\n");
return;
}
sc->sc_hwflags = 0;
sc->sc_frequency = BAUD_BASE;
for (i = 0; i < ea->ea_nintr; i++)
bus_intr_establish(ea->ea_bustag, ea->ea_intr[i],
IPL_SERIAL, comintr, sc);
kma.kmta_consdev = NULL;
/* Figure out if we're the console. */
com_is_input = (ea->ea_node == prom_instance_to_package(prom_stdin()));
com_is_output = (ea->ea_node == prom_instance_to_package(prom_stdout()));
if (com_is_input || com_is_output) {
extern struct consdev comcons;
struct consdev *cn_orig;
/* Record some info to attach console. */
kma.kmta_baud = 9600;
kma.kmta_cflag = (CREAD | CS8 | HUPCL);
/* Attach com as the console. */
cn_orig = cn_tab;
if (comcnattach(sc->sc_iot, sc->sc_iobase, kma.kmta_baud,
sc->sc_frequency, COM_TYPE_NORMAL, kma.kmta_cflag)) {
printf("Error: comcnattach failed\n");
}
cn_tab = cn_orig;
if (com_is_input) {
cn_tab->cn_dev = comcons.cn_dev;
cn_tab->cn_probe = comcons.cn_probe;
cn_tab->cn_init = comcons.cn_init;
cn_tab->cn_getc = comcons.cn_getc;
cn_tab->cn_pollc = comcons.cn_pollc;
}
if (com_is_output) {
cn_tab->cn_putc = comcons.cn_putc;
}
kma.kmta_consdev = cn_tab;
}
/* Now attach the driver */
com_attach_subr(sc);
#if (NKBD > 0) || (NMS > 0)
kma.kmta_tp = sc->sc_tty;
/* If we figure out we're the console we should point this to our consdev */
/* locate the major number */
maj = cdevsw_lookup_major(&com_cdevsw);
kma.kmta_dev = makedev(maj, sc->sc_dev.dv_unit);
/* Attach 'em if we got 'em. */
#if (NKBD > 0)
kma.kmta_name = "keyboard";
if (prom_getproplen(ea->ea_node, kma.kmta_name) == 0) {
config_found(self, (void *)&kma, NULL);
}
#endif
#if (NMS > 0)
kma.kmta_name = "mouse";
if (prom_getproplen(ea->ea_node, kma.kmta_name) == 0) {
config_found(self, (void *)&kma, NULL);
}
#endif
#endif
if (kma.kmta_consdev) {
/*
* If we're the keyboard then we need the original
* cn_tab w/prom I/O, which sunkbd copied into kma.
* Otherwise we want conscom which we copied into
* kma.kmta_consdev.
*/
cn_tab = kma.kmta_consdev;
}
}