Add a gpio device to handle the gpio device & extint-gpio1
interrupt. (think ibook/powerbook)
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parent
1fa336cced
commit
22d63778fc
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@ -1,4 +1,4 @@
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# $NetBSD: files.macppc,v 1.40 2001/02/18 04:55:37 matt Exp $
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# $NetBSD: files.macppc,v 1.41 2001/02/27 05:15:04 matt Exp $
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#
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# macppc-specific configuration info
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@ -188,6 +188,11 @@ device awacs: audio, auconv, mulaw
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attach awacs at obio
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file arch/macppc/dev/awacs.c awacs
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device gpio {}
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attach gpio at obio with gpio_obio
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attach gpio at gpio with gpio_gpio
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file arch/macppc/dev/gpio.c gpio
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define grfdev {}
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device grfati: grfdev
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@ -0,0 +1,180 @@
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/* $NetBSD: gpio.c,v 1.1 2001/02/27 05:15:03 matt Exp $ */
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/*-
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* Copyright (C) 1998 Internet Research Institute, Inc.
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* 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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* 3. All advertising materials mentioning features or use of this software
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* must display the following acknowledgement:
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* This product includes software developed by
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* Internet Research Institute, Inc.
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* 4. The name of the author may not be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
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* IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
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* OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
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* IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
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* INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
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* NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <sys/types.h>
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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 <sys/malloc.h>
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#include <machine/autoconf.h>
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#include <machine/pio.h>
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#include "adb.h"
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static void gpio_obio_attach (struct device *, struct device *, void *);
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static int gpio_obio_match (struct device *, struct cfdata *, void *);
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static int gpio_obio_print (void *aux, const char *gpio);
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static void gpio_gpio_attach (struct device *, struct device *, void *);
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static int gpio_gpio_match (struct device *, struct cfdata *, void *);
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static int gpio_intr (void *);
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struct gpio_softc {
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struct device sc_dev;
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u_int8_t *sc_port;
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};
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struct cfattach gpio_obio_ca = {
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sizeof(struct gpio_softc), gpio_obio_match, gpio_obio_attach
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};
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struct cfattach gpio_gpio_ca = {
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sizeof(struct gpio_softc), gpio_gpio_match, gpio_gpio_attach
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};
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extern struct cfdriver gpio_cd;
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int
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gpio_obio_match(struct device *parent, struct cfdata *cf, void *aux)
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{
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struct confargs *ca = aux;
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if (strcmp(ca->ca_name, "gpio") != 0)
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return 0;
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if (ca->ca_nreg == 0)
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return 0;
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return 1;
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}
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void
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gpio_obio_attach(struct device *parent, struct device *self, void *aux)
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{
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struct gpio_softc *sc = (struct gpio_softc *)self;
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struct confargs *ca = aux, ca2;
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int child;
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int namelen;
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int intr[6];
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u_int reg[20];
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char name[32];
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printf("\n");
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sc->sc_port = mapiodev(ca->ca_baseaddr + ca->ca_reg[0], ca->ca_reg[1]);
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ca2.ca_baseaddr = ca->ca_baseaddr;
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for (child = OF_child(ca->ca_node); child; child = OF_peer(child)) {
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namelen = OF_getprop(child, "name", name, sizeof(name));
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if (namelen < 0)
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continue;
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if (namelen >= sizeof(name))
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continue;
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name[namelen] = 0;
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ca2.ca_name = name;
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ca2.ca_node = child;
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ca2.ca_nreg = OF_getprop(child, "reg", reg, sizeof(reg));
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ca2.ca_nintr = OF_getprop(child, "AAPL,interrupts", intr,
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sizeof(intr));
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if (ca2.ca_nintr == -1)
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ca2.ca_nintr = OF_getprop(child, "interrupts", intr,
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sizeof(intr));
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ca2.ca_reg = reg;
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ca2.ca_intr = intr;
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config_found(self, &ca2, gpio_obio_print);
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}
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}
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int
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gpio_obio_print(void *aux, const char *gpio)
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{
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struct confargs *ca = aux;
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if (gpio)
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printf("%s at %s", ca->ca_name, gpio);
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if (ca->ca_nreg > 0)
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printf(" offset 0x%x", ca->ca_reg[0]);
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return UNCONF;
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}
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int
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gpio_gpio_match(struct device *parent, struct cfdata *cf, void *aux)
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{
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struct confargs *ca = aux;
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if (strcmp(ca->ca_name, "extint-gpio1") != 0)
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return 0;
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if (ca->ca_nintr < 0)
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return 0;
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return 1;
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}
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void
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gpio_gpio_attach(struct device *parent, struct device *self, void *aux)
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{
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struct gpio_softc *sc = (struct gpio_softc *)self;
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struct confargs *ca = aux;
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sc->sc_port = ((struct gpio_softc *) parent)->sc_port;
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intr_establish(ca->ca_intr[0], IST_LEVEL, IPL_HIGH, gpio_intr, sc);
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printf(" irq %d\n", ca->ca_intr[0]);
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}
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#if NADB > 0
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extern int adb_intr (void *);
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extern struct cfdriver adb_cd;
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#endif
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int
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gpio_intr(void *arg)
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{
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struct gpio_softc *sc = arg;
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int rv = 0;
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#if NADB > 0
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rv = adb_intr(adb_cd.cd_devs[0]);
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#endif
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return rv;
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}
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