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/* $OpenBSD: auxio.c,v 1.5 2003/02/17 01:29:19 henric Exp $ */
/* $NetBSD: auxio.c,v 1.1 2000/04/15 03:08:13 mrg Exp $ */
/*
* Copyright (c) 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.
*/
/*
* AUXIO registers support on the sbus & ebus2.
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/errno.h>
#include <sys/device.h>
#include <sys/timeout.h>
#include <sys/kernel.h>
#include <machine/autoconf.h>
#include <machine/cpu.h>
#include <sparc64/dev/ebusreg.h>
#include <sparc64/dev/ebusvar.h>
#include <sparc64/dev/sbusvar.h>
#include <sparc64/dev/auxioreg.h>
#include <sparc64/dev/auxiovar.h>
#define AUXIO_ROM_NAME "auxio"
/*
* ebus code.
*/
int auxio_ebus_match(struct device *, void *, void *);
void auxio_ebus_attach(struct device *, struct device *, void *);
int auxio_sbus_match(struct device *, void *, void *);
void auxio_sbus_attach(struct device *, struct device *, void *);
void auxio_attach_common(struct auxio_softc *);
struct cfattach auxio_ebus_ca = {
sizeof(struct auxio_softc), auxio_ebus_match, auxio_ebus_attach
};
struct cfattach auxio_sbus_ca = {
sizeof(struct auxio_softc), auxio_sbus_match, auxio_sbus_attach
};
struct cfdriver auxio_cd = {
NULL, "auxio", DV_DULL
};
extern int sparc_led_blink;
int
auxio_ebus_match(parent, cf, aux)
struct device *parent;
void *cf;
void *aux;
{
struct ebus_attach_args *ea = aux;
return (strcmp(AUXIO_ROM_NAME, ea->ea_name) == 0);
}
void
auxio_ebus_attach(parent, self, aux)
struct device *parent, *self;
void *aux;
{
struct auxio_softc *sc = (struct auxio_softc *)self;
struct ebus_attach_args *ea = aux;
timeout_set(&sc->sc_to, auxio_led_blink, sc);
if (ea->ea_nregs < 1 || ea->ea_nvaddrs < 1) {
printf(": no registers??\n");
return;
}
sc->sc_tag = ea->ea_memtag;
if (ea->ea_nregs != 5 || ea->ea_nvaddrs != 5) {
printf(": not 5 (%d) registers, only setting led",
ea->ea_nregs);
sc->sc_flags = AUXIO_LEDONLY|AUXIO_EBUS;
} else {
sc->sc_flags = AUXIO_EBUS;
if (bus_space_map(sc->sc_tag, ea->ea_vaddrs[2],
sizeof(u_int32_t), BUS_SPACE_MAP_PROMADDRESS,
&sc->sc_freq)) {
printf(": unable to map freq\n");
return;
}
if (bus_space_map(sc->sc_tag, ea->ea_vaddrs[3],
sizeof(u_int32_t), BUS_SPACE_MAP_PROMADDRESS,
&sc->sc_scsi)) {
printf(": unable to map SCSI\n");
return;
}
if (bus_space_map(sc->sc_tag, ea->ea_vaddrs[4],
sizeof(u_int32_t), BUS_SPACE_MAP_PROMADDRESS,
&sc->sc_temp)) {
printf(": unable to map temp\n");
return;
}
}
if (bus_space_map(sc->sc_tag, ea->ea_vaddrs[0], sizeof(u_int32_t),
BUS_SPACE_MAP_PROMADDRESS, &sc->sc_led)) {
printf(": unable to map LED\n");
return;
}
auxio_attach_common(sc);
}
int
auxio_sbus_match(parent, cf, aux)
struct device *parent;
void *cf;
void *aux;
{
struct sbus_attach_args *sa = aux;
return (strcmp(AUXIO_ROM_NAME, sa->sa_name) == 0);
}
void
auxio_sbus_attach(parent, self, aux)
struct device *parent, *self;
void *aux;
{
struct auxio_softc *sc = (struct auxio_softc *)self;
struct sbus_attach_args *sa = aux;
timeout_set(&sc->sc_to, auxio_led_blink, sc);
sc->sc_tag = sa->sa_bustag;
if (sa->sa_nreg < 1 || sa->sa_npromvaddrs < 1) {
printf(": no registers??\n");
return;
}
if (sa->sa_nreg != 1 || sa->sa_npromvaddrs != 1) {
printf(": not 1 (%d/%d) registers??", sa->sa_nreg, sa->sa_npromvaddrs);
return;
}
/* sbus auxio only has one set of registers */
sc->sc_flags = AUXIO_LEDONLY|AUXIO_SBUS;
if (bus_space_map(sc->sc_tag, sa->sa_promvaddr, 1,
BUS_SPACE_MAP_PROMADDRESS, &sc->sc_led)) {
printf(": couldn't map registers\n");
return;
}
auxio_attach_common(sc);
}
void
auxio_attach_common(sc)
struct auxio_softc *sc;
{
if (sparc_led_blink)
auxio_led_blink(sc);
printf("\n");
}
void
auxio_led_blink(vsc)
void *vsc;
{
struct auxio_softc *sc = vsc;
u_int32_t led;
int i, s;
if (sc == NULL) {
for (i = 0; i < auxio_cd.cd_ndevs; i++) {
sc = auxio_cd.cd_devs[i];
if (sc != NULL)
auxio_led_blink(sc);
}
return;
}
s = splhigh();
if (sc->sc_flags & AUXIO_EBUS)
led = letoh32(bus_space_read_4(sc->sc_tag, sc->sc_led, 0));
else
led = bus_space_read_1(sc->sc_tag, sc->sc_led, 0);
if (!sparc_led_blink)
led |= AUXIO_LED_LED;
else
led ^= AUXIO_LED_LED;
if (sc->sc_flags & AUXIO_EBUS)
bus_space_write_4(sc->sc_tag, sc->sc_led, 0, htole32(led));
else
bus_space_write_1(sc->sc_tag, sc->sc_led, 0, led);
splx(s);
if (!sparc_led_blink)
return;
/*
* Blink rate is:
* full cycle every second if completely idle (loadav = 0)
* full cycle every 2 seconds if loadav = 1
* full cycle every 3 seconds if loadav = 2
* etc.
*/
s = (((averunnable.ldavg[0] + FSCALE) * hz) >> (FSHIFT + 1));
timeout_add(&sc->sc_to, s);
}
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