143 lines
3.6 KiB
C
143 lines
3.6 KiB
C
/* $NetBSD: epled.c,v 1.2 2006/03/26 04:38:52 thorpej Exp $ */
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/*
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* Copyright (c) 2005 HAMAJIMA Katsuomi. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*/
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#include <sys/cdefs.h>
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__KERNEL_RCSID(0, "$NetBSD: epled.c,v 1.2 2006/03/26 04:38:52 thorpej Exp $");
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#include <sys/param.h>
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#include <sys/systm.h>
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#include <sys/kernel.h>
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#include <sys/device.h>
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#include <machine/bus.h>
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#include <arm/ep93xx/epgpiovar.h>
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#include <arm/ep93xx/epledvar.h>
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struct epled_softc {
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struct device sc_dev;
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int sc_port;
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int sc_green;
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int sc_red;
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struct epgpio_softc *sc_gpio;
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};
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static int epled_match(struct device *, struct cfdata *, void *);
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static void epled_attach(struct device *, struct device *, void *);
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CFATTACH_DECL(epled, sizeof(struct epled_softc),
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epled_match, epled_attach, NULL, NULL);
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static struct epled_softc *the_epled_sc = 0;
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int
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epled_match(struct device *parent, struct cfdata *cf, void *aux)
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{
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return 1;
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}
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void
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epled_attach(struct device *parent, struct device *self, void *aux)
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{
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struct epled_softc *sc = (struct epled_softc *)self;
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struct epgpio_attach_args *ga = aux;
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sc->sc_port = ga->ga_port;
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sc->sc_green = ga->ga_bit1;
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sc->sc_red = ga->ga_bit2;
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sc->sc_gpio = (struct epgpio_softc *)parent;
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printf("\n");
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if (!the_epled_sc)
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the_epled_sc = sc;
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#ifdef DIAGNOSTIC
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else
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printf("%s is already configured\n", sc->sc_dev.dv_xname);
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#endif
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epgpio_out(sc->sc_gpio, sc->sc_port, sc->sc_green);
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epgpio_out(sc->sc_gpio, sc->sc_port, sc->sc_red);
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}
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int
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epled_red_on(void)
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{
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struct epled_softc *sc = the_epled_sc;
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#ifdef DIAGNOSTIC
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if (!sc) {
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printf("epled not configured\n");
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return (ENXIO);
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}
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#endif
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epgpio_set(sc->sc_gpio, sc->sc_port, sc->sc_red);
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return 0;
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}
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int
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epled_red_off(void)
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{
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struct epled_softc *sc = the_epled_sc;
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#ifdef DIAGNOSTIC
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if (!sc) {
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printf("epled not configured\n");
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return (ENXIO);
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}
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#endif
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epgpio_clear(sc->sc_gpio, sc->sc_port, sc->sc_red);
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return 0;
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}
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int
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epled_green_on(void)
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{
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struct epled_softc *sc = the_epled_sc;
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#ifdef DIAGNOSTIC
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if (!sc) {
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printf("epled not configured\n");
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return (ENXIO);
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}
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#endif
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epgpio_set(sc->sc_gpio, sc->sc_port, sc->sc_green);
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return 0;
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}
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int
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epled_green_off(void)
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{
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struct epled_softc *sc = the_epled_sc;
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#ifdef DIAGNOSTIC
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if (!sc) {
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printf("epled not configured\n");
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return (ENXIO);
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}
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#endif
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epgpio_clear(sc->sc_gpio, sc->sc_port, sc->sc_green);
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return 0;
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}
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