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/* $OpenBSD: led.c,v 1.9 2002/03/14 01:26:43 millert Exp $ */
/*
* Copyright (c) 1998 Jason L. Wright (jason@thought.net)
* 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 Jason L. Wright
* 4. 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.
*/
/*
* Driver for leds on the 4/100, 4/200, 4/300, and 4/600. (sun4 & sun4m)
*/
#include <sys/param.h>
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/errno.h>
#include <sys/socket.h>
#include <sys/syslog.h>
#include <sys/device.h>
#include <sys/malloc.h>
#include <sys/timeout.h>
#include <machine/autoconf.h>
#include <machine/ctlreg.h>
#include <sparc/sparc/asm.h>
#include <sparc/cpu.h>
#include <sparc/sparc/cpuvar.h>
#include <sparc/dev/led.h>
int ledmatch(struct device *, void *, void *);
void ledattach(struct device *, struct device *, void *);
void led_cycle(void *);
struct cfattach led_ca = {
sizeof (struct led_softc), ledmatch, ledattach
};
struct cfdriver led_cd = {
NULL, "led", DV_IFNET
};
static u_int8_t led_pattern[] = {
0xff, 0xfe, 0xfd, 0xfb, 0xf7, 0xef, 0xdf, 0xbf, 0x7f,
0xff, 0x7f, 0xbf, 0xdf, 0xef, 0xf7, 0xfb, 0xfd, 0xfe,
};
struct led_softc *led_sc = NULL;
extern int sparc_led_blink; /* from machdep */
int
ledmatch(parent, vcf, aux)
struct device *parent;
void *vcf, *aux;
{
#if defined(SUN4)
struct cfdata *cf = vcf;
#endif
#if defined(SUN4) || defined(SUN4M)
struct confargs *ca = aux;
register struct romaux *ra = &ca->ca_ra;
#if defined(SUN4M)
if (ca->ca_bustype == BUS_OBIO) {
if (strcmp("leds", ra->ra_name))
return (0);
return (1);
}
#endif /* SUN4M */
#if defined(SUN4)
if (ca->ca_bustype == BUS_MAIN) {
if (strcmp(cf->cf_driver->cd_name, ra->ra_name))
return (0);
if (CPU_ISSUN4)
return (1);
return (0);
}
#endif /* SUN4 */
#endif /* SUN4 || SUN4M */
return (0);
}
void
ledattach(parent, self, aux)
struct device *parent, *self;
void *aux;
{
struct confargs *ca = aux;
struct led_softc *sc = (struct led_softc *)self;
sc->sc_node = ca->ca_ra.ra_node;
timeout_set(&sc->sc_to, led_cycle, sc);
if (CPU_ISSUN4M)
sc->sc_reg = mapiodev(&(ca->ca_ra.ra_reg[0]), 0,
ca->ca_ra.ra_reg[0].rr_len);
led_sc = sc;
if (sparc_led_blink)
led_cycle(sc);
printf("\n");
}
void
led_cycle(v)
void *v;
{
struct led_softc *sc = v;
int s;
if (sc == NULL)
return;
sc->sc_index = (sc->sc_index + 1) %
(sizeof(led_pattern)/sizeof(led_pattern[0]));
if (sparc_led_blink == 0)
sc->sc_index = 0;
#if defined(SUN4M)
if (CPU_ISSUN4M) {
s = splhigh();
(*sc->sc_reg) = led_pattern[sc->sc_index] | 0xff00;
splx(s);
}
#endif
#if defined(SUN4)
if (CPU_ISSUN4) {
s = splhigh();
stba(AC_DIAG_REG, ASI_CONTROL, led_pattern[sc->sc_index]);
splx(s);
}
#endif
if (sparc_led_blink != 0) {
s = (((averunnable.ldavg[0] + FSCALE) * hz) >> (FSHIFT + 3));
timeout_add(&sc->sc_to, s);
}
}
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