gpio.c revision 1.2.4.2
1 1.2.4.2 bouyer /* $NetBSD: gpio.c,v 1.2.4.2 2001/03/12 13:29:00 bouyer Exp $ */ 2 1.2.4.2 bouyer 3 1.2.4.2 bouyer /*- 4 1.2.4.2 bouyer * Copyright (C) 1998 Internet Research Institute, Inc. 5 1.2.4.2 bouyer * All rights reserved. 6 1.2.4.2 bouyer * 7 1.2.4.2 bouyer * Redistribution and use in source and binary forms, with or without 8 1.2.4.2 bouyer * modification, are permitted provided that the following conditions 9 1.2.4.2 bouyer * are met: 10 1.2.4.2 bouyer * 1. Redistributions of source code must retain the above copyright 11 1.2.4.2 bouyer * notice, this list of conditions and the following disclaimer. 12 1.2.4.2 bouyer * 2. Redistributions in binary form must reproduce the above copyright 13 1.2.4.2 bouyer * notice, this list of conditions and the following disclaimer in the 14 1.2.4.2 bouyer * documentation and/or other materials provided with the distribution. 15 1.2.4.2 bouyer * 3. All advertising materials mentioning features or use of this software 16 1.2.4.2 bouyer * must display the following acknowledgement: 17 1.2.4.2 bouyer * This product includes software developed by 18 1.2.4.2 bouyer * Internet Research Institute, Inc. 19 1.2.4.2 bouyer * 4. The name of the author may not be used to endorse or promote products 20 1.2.4.2 bouyer * derived from this software without specific prior written permission. 21 1.2.4.2 bouyer * 22 1.2.4.2 bouyer * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 23 1.2.4.2 bouyer * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 24 1.2.4.2 bouyer * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 25 1.2.4.2 bouyer * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 26 1.2.4.2 bouyer * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 27 1.2.4.2 bouyer * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 28 1.2.4.2 bouyer * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 29 1.2.4.2 bouyer * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 30 1.2.4.2 bouyer * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE 31 1.2.4.2 bouyer * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 32 1.2.4.2 bouyer */ 33 1.2.4.2 bouyer 34 1.2.4.2 bouyer #include <sys/types.h> 35 1.2.4.2 bouyer #include <sys/param.h> 36 1.2.4.2 bouyer #include <sys/systm.h> 37 1.2.4.2 bouyer #include <sys/kernel.h> 38 1.2.4.2 bouyer #include <sys/device.h> 39 1.2.4.2 bouyer #include <sys/malloc.h> 40 1.2.4.2 bouyer #include <machine/autoconf.h> 41 1.2.4.2 bouyer #include <machine/pio.h> 42 1.2.4.2 bouyer 43 1.2.4.2 bouyer #include "adb.h" 44 1.2.4.2 bouyer 45 1.2.4.2 bouyer static void gpio_obio_attach (struct device *, struct device *, void *); 46 1.2.4.2 bouyer static int gpio_obio_match (struct device *, struct cfdata *, void *); 47 1.2.4.2 bouyer static int gpio_obio_print (void *aux, const char *gpio); 48 1.2.4.2 bouyer 49 1.2.4.2 bouyer static void gpio_gpio_attach (struct device *, struct device *, void *); 50 1.2.4.2 bouyer static int gpio_gpio_match (struct device *, struct cfdata *, void *); 51 1.2.4.2 bouyer static int gpio_intr (void *); 52 1.2.4.2 bouyer 53 1.2.4.2 bouyer struct gpio_softc { 54 1.2.4.2 bouyer struct device sc_dev; 55 1.2.4.2 bouyer u_int8_t *sc_port; 56 1.2.4.2 bouyer }; 57 1.2.4.2 bouyer 58 1.2.4.2 bouyer struct cfattach gpio_obio_ca = { 59 1.2.4.2 bouyer sizeof(struct gpio_softc), gpio_obio_match, gpio_obio_attach 60 1.2.4.2 bouyer }; 61 1.2.4.2 bouyer 62 1.2.4.2 bouyer struct cfattach gpio_gpio_ca = { 63 1.2.4.2 bouyer sizeof(struct gpio_softc), gpio_gpio_match, gpio_gpio_attach 64 1.2.4.2 bouyer }; 65 1.2.4.2 bouyer 66 1.2.4.2 bouyer extern struct cfdriver gpio_cd; 67 1.2.4.2 bouyer 68 1.2.4.2 bouyer int 69 1.2.4.2 bouyer gpio_obio_match(struct device *parent, struct cfdata *cf, void *aux) 70 1.2.4.2 bouyer { 71 1.2.4.2 bouyer struct confargs *ca = aux; 72 1.2.4.2 bouyer 73 1.2.4.2 bouyer if (strcmp(ca->ca_name, "gpio") != 0) 74 1.2.4.2 bouyer return 0; 75 1.2.4.2 bouyer 76 1.2.4.2 bouyer if (ca->ca_nreg == 0) 77 1.2.4.2 bouyer return 0; 78 1.2.4.2 bouyer 79 1.2.4.2 bouyer return 1; 80 1.2.4.2 bouyer } 81 1.2.4.2 bouyer 82 1.2.4.2 bouyer void 83 1.2.4.2 bouyer gpio_obio_attach(struct device *parent, struct device *self, void *aux) 84 1.2.4.2 bouyer { 85 1.2.4.2 bouyer struct gpio_softc *sc = (struct gpio_softc *)self; 86 1.2.4.2 bouyer struct confargs *ca = aux, ca2; 87 1.2.4.2 bouyer int child; 88 1.2.4.2 bouyer int namelen; 89 1.2.4.2 bouyer int intr[6]; 90 1.2.4.2 bouyer u_int reg[20]; 91 1.2.4.2 bouyer char name[32]; 92 1.2.4.2 bouyer 93 1.2.4.2 bouyer printf("\n"); 94 1.2.4.2 bouyer 95 1.2.4.2 bouyer sc->sc_port = mapiodev(ca->ca_baseaddr + ca->ca_reg[0], ca->ca_reg[1]); 96 1.2.4.2 bouyer 97 1.2.4.2 bouyer ca2.ca_baseaddr = ca->ca_baseaddr; 98 1.2.4.2 bouyer for (child = OF_child(ca->ca_node); child; child = OF_peer(child)) { 99 1.2.4.2 bouyer namelen = OF_getprop(child, "name", name, sizeof(name)); 100 1.2.4.2 bouyer if (namelen < 0) 101 1.2.4.2 bouyer continue; 102 1.2.4.2 bouyer if (namelen >= sizeof(name)) 103 1.2.4.2 bouyer continue; 104 1.2.4.2 bouyer 105 1.2.4.2 bouyer name[namelen] = 0; 106 1.2.4.2 bouyer ca2.ca_name = name; 107 1.2.4.2 bouyer ca2.ca_node = child; 108 1.2.4.2 bouyer 109 1.2.4.2 bouyer ca2.ca_nreg = OF_getprop(child, "reg", reg, sizeof(reg)); 110 1.2.4.2 bouyer ca2.ca_nintr = OF_getprop(child, "AAPL,interrupts", intr, 111 1.2.4.2 bouyer sizeof(intr)); 112 1.2.4.2 bouyer if (ca2.ca_nintr == -1) 113 1.2.4.2 bouyer ca2.ca_nintr = OF_getprop(child, "interrupts", intr, 114 1.2.4.2 bouyer sizeof(intr)); 115 1.2.4.2 bouyer 116 1.2.4.2 bouyer ca2.ca_reg = reg; 117 1.2.4.2 bouyer ca2.ca_intr = intr; 118 1.2.4.2 bouyer 119 1.2.4.2 bouyer config_found(self, &ca2, gpio_obio_print); 120 1.2.4.2 bouyer } 121 1.2.4.2 bouyer } 122 1.2.4.2 bouyer 123 1.2.4.2 bouyer int 124 1.2.4.2 bouyer gpio_obio_print(void *aux, const char *gpio) 125 1.2.4.2 bouyer { 126 1.2.4.2 bouyer struct confargs *ca = aux; 127 1.2.4.2 bouyer 128 1.2.4.2 bouyer if (gpio) 129 1.2.4.2 bouyer printf("%s at %s", ca->ca_name, gpio); 130 1.2.4.2 bouyer 131 1.2.4.2 bouyer if (ca->ca_nreg > 0) 132 1.2.4.2 bouyer printf(" offset 0x%x", ca->ca_reg[0]); 133 1.2.4.2 bouyer 134 1.2.4.2 bouyer return UNCONF; 135 1.2.4.2 bouyer } 136 1.2.4.2 bouyer 137 1.2.4.2 bouyer int 138 1.2.4.2 bouyer gpio_gpio_match(struct device *parent, struct cfdata *cf, void *aux) 139 1.2.4.2 bouyer { 140 1.2.4.2 bouyer struct confargs *ca = aux; 141 1.2.4.2 bouyer 142 1.2.4.2 bouyer if (strcmp(ca->ca_name, "extint-gpio1") != 0) 143 1.2.4.2 bouyer return 0; 144 1.2.4.2 bouyer 145 1.2.4.2 bouyer if (ca->ca_nintr < 0) 146 1.2.4.2 bouyer return 0; 147 1.2.4.2 bouyer 148 1.2.4.2 bouyer return 1; 149 1.2.4.2 bouyer } 150 1.2.4.2 bouyer 151 1.2.4.2 bouyer void 152 1.2.4.2 bouyer gpio_gpio_attach(struct device *parent, struct device *self, void *aux) 153 1.2.4.2 bouyer { 154 1.2.4.2 bouyer struct gpio_softc *sc = (struct gpio_softc *)self; 155 1.2.4.2 bouyer struct confargs *ca = aux; 156 1.2.4.2 bouyer 157 1.2.4.2 bouyer 158 1.2.4.2 bouyer sc->sc_port = ((struct gpio_softc *) parent)->sc_port; 159 1.2.4.2 bouyer intr_establish(ca->ca_intr[0], IST_LEVEL, IPL_HIGH, gpio_intr, sc); 160 1.2.4.2 bouyer 161 1.2.4.2 bouyer printf(" irq %d\n", ca->ca_intr[0]); 162 1.2.4.2 bouyer } 163 1.2.4.2 bouyer 164 1.2.4.2 bouyer #if NADB > 0 165 1.2.4.2 bouyer extern int adb_intr (void *); 166 1.2.4.2 bouyer extern struct cfdriver adb_cd; 167 1.2.4.2 bouyer #endif 168 1.2.4.2 bouyer 169 1.2.4.2 bouyer int 170 1.2.4.2 bouyer gpio_intr(void *arg) 171 1.2.4.2 bouyer { 172 1.2.4.2 bouyer struct gpio_softc *sc = arg; 173 1.2.4.2 bouyer int rv = 0; 174 1.2.4.2 bouyer 175 1.2.4.2 bouyer #if NADB > 0 176 1.2.4.2 bouyer if (adb_cd.cd_devs[0] != NULL) 177 1.2.4.2 bouyer rv = adb_intr(adb_cd.cd_devs[0]); 178 1.2.4.2 bouyer #endif 179 1.2.4.2 bouyer 180 1.2.4.2 bouyer return rv; 181 1.2.4.2 bouyer } 182
Indexes created Wed Oct 01 07:09:59 GMT 2025