From 22d63778fc705d2280c75646d059bb793622482f Mon Sep 17 00:00:00 2001 From: matt Date: Tue, 27 Feb 2001 05:15:03 +0000 Subject: [PATCH] Add a gpio device to handle the gpio device & extint-gpio1 interrupt. (think ibook/powerbook) --- sys/arch/macppc/conf/files.macppc | 7 +- sys/arch/macppc/dev/gpio.c | 180 ++++++++++++++++++++++++++++++ 2 files changed, 186 insertions(+), 1 deletion(-) create mode 100644 sys/arch/macppc/dev/gpio.c diff --git a/sys/arch/macppc/conf/files.macppc b/sys/arch/macppc/conf/files.macppc index 7acb9cb618a5..1124143c4b8c 100644 --- a/sys/arch/macppc/conf/files.macppc +++ b/sys/arch/macppc/conf/files.macppc @@ -1,4 +1,4 @@ -# $NetBSD: files.macppc,v 1.40 2001/02/18 04:55:37 matt Exp $ +# $NetBSD: files.macppc,v 1.41 2001/02/27 05:15:04 matt Exp $ # # macppc-specific configuration info @@ -188,6 +188,11 @@ device awacs: audio, auconv, mulaw attach awacs at obio file arch/macppc/dev/awacs.c awacs +device gpio {} +attach gpio at obio with gpio_obio +attach gpio at gpio with gpio_gpio +file arch/macppc/dev/gpio.c gpio + define grfdev {} device grfati: grfdev diff --git a/sys/arch/macppc/dev/gpio.c b/sys/arch/macppc/dev/gpio.c new file mode 100644 index 000000000000..76d9b45b2e37 --- /dev/null +++ b/sys/arch/macppc/dev/gpio.c @@ -0,0 +1,180 @@ +/* $NetBSD: gpio.c,v 1.1 2001/02/27 05:15:03 matt Exp $ */ + +/*- + * Copyright (C) 1998 Internet Research Institute, Inc. + * 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 + * Internet Research Institute, Inc. + * 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. + */ + +#include +#include +#include +#include +#include +#include +#include +#include + +#include "adb.h" + +static void gpio_obio_attach (struct device *, struct device *, void *); +static int gpio_obio_match (struct device *, struct cfdata *, void *); +static int gpio_obio_print (void *aux, const char *gpio); + +static void gpio_gpio_attach (struct device *, struct device *, void *); +static int gpio_gpio_match (struct device *, struct cfdata *, void *); +static int gpio_intr (void *); + +struct gpio_softc { + struct device sc_dev; + u_int8_t *sc_port; +}; + +struct cfattach gpio_obio_ca = { + sizeof(struct gpio_softc), gpio_obio_match, gpio_obio_attach +}; + +struct cfattach gpio_gpio_ca = { + sizeof(struct gpio_softc), gpio_gpio_match, gpio_gpio_attach +}; + +extern struct cfdriver gpio_cd; + +int +gpio_obio_match(struct device *parent, struct cfdata *cf, void *aux) +{ + struct confargs *ca = aux; + + if (strcmp(ca->ca_name, "gpio") != 0) + return 0; + + if (ca->ca_nreg == 0) + return 0; + + return 1; +} + +void +gpio_obio_attach(struct device *parent, struct device *self, void *aux) +{ + struct gpio_softc *sc = (struct gpio_softc *)self; + struct confargs *ca = aux, ca2; + int child; + int namelen; + int intr[6]; + u_int reg[20]; + char name[32]; + + printf("\n"); + + sc->sc_port = mapiodev(ca->ca_baseaddr + ca->ca_reg[0], ca->ca_reg[1]); + + ca2.ca_baseaddr = ca->ca_baseaddr; + for (child = OF_child(ca->ca_node); child; child = OF_peer(child)) { + namelen = OF_getprop(child, "name", name, sizeof(name)); + if (namelen < 0) + continue; + if (namelen >= sizeof(name)) + continue; + + name[namelen] = 0; + ca2.ca_name = name; + ca2.ca_node = child; + + ca2.ca_nreg = OF_getprop(child, "reg", reg, sizeof(reg)); + ca2.ca_nintr = OF_getprop(child, "AAPL,interrupts", intr, + sizeof(intr)); + if (ca2.ca_nintr == -1) + ca2.ca_nintr = OF_getprop(child, "interrupts", intr, + sizeof(intr)); + + ca2.ca_reg = reg; + ca2.ca_intr = intr; + + config_found(self, &ca2, gpio_obio_print); + } +} + +int +gpio_obio_print(void *aux, const char *gpio) +{ + struct confargs *ca = aux; + + if (gpio) + printf("%s at %s", ca->ca_name, gpio); + + if (ca->ca_nreg > 0) + printf(" offset 0x%x", ca->ca_reg[0]); + + return UNCONF; +} + +int +gpio_gpio_match(struct device *parent, struct cfdata *cf, void *aux) +{ + struct confargs *ca = aux; + + if (strcmp(ca->ca_name, "extint-gpio1") != 0) + return 0; + + if (ca->ca_nintr < 0) + return 0; + + return 1; +} + +void +gpio_gpio_attach(struct device *parent, struct device *self, void *aux) +{ + struct gpio_softc *sc = (struct gpio_softc *)self; + struct confargs *ca = aux; + + + sc->sc_port = ((struct gpio_softc *) parent)->sc_port; + intr_establish(ca->ca_intr[0], IST_LEVEL, IPL_HIGH, gpio_intr, sc); + + printf(" irq %d\n", ca->ca_intr[0]); +} + +#if NADB > 0 +extern int adb_intr (void *); +extern struct cfdriver adb_cd; +#endif + +int +gpio_intr(void *arg) +{ + struct gpio_softc *sc = arg; + int rv = 0; + +#if NADB > 0 + rv = adb_intr(adb_cd.cd_devs[0]); +#endif + + return rv; +}