1b4dbc599SNathan Whitehorn /*- 2ecf558fdSNathan Whitehorn * Copyright 2008 by Nathan Whitehorn. All rights reserved. 3b4dbc599SNathan Whitehorn * 4b4dbc599SNathan Whitehorn * Redistribution and use in source and binary forms, with or without 5b4dbc599SNathan Whitehorn * modification, are permitted provided that the following conditions 6b4dbc599SNathan Whitehorn * are met: 7b4dbc599SNathan Whitehorn * 1. Redistributions of source code must retain the above copyright 8b4dbc599SNathan Whitehorn * notice, this list of conditions and the following disclaimer. 9b4dbc599SNathan Whitehorn * 2. Redistributions in binary form must reproduce the above copyright 10b4dbc599SNathan Whitehorn * notice, this list of conditions and the following disclaimer in the 11b4dbc599SNathan Whitehorn * documentation and/or other materials provided with the distribution. 12b4dbc599SNathan Whitehorn * 13b4dbc599SNathan Whitehorn * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 14b4dbc599SNathan Whitehorn * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 15b4dbc599SNathan Whitehorn * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 16b4dbc599SNathan Whitehorn * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, 17b4dbc599SNathan Whitehorn * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, 18b4dbc599SNathan Whitehorn * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; 19b4dbc599SNathan Whitehorn * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED 20b4dbc599SNathan Whitehorn * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, 21b4dbc599SNathan Whitehorn * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 22b4dbc599SNathan Whitehorn * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 23b4dbc599SNathan Whitehorn * SUCH DAMAGE. 24b4dbc599SNathan Whitehorn * 25b4dbc599SNathan Whitehorn * $FreeBSD$ 26b4dbc599SNathan Whitehorn */ 27b4dbc599SNathan Whitehorn 28b4dbc599SNathan Whitehorn /* 29b4dbc599SNathan Whitehorn * Driver for MacIO GPIO controller 30b4dbc599SNathan Whitehorn */ 31b4dbc599SNathan Whitehorn 32b4dbc599SNathan Whitehorn #include <sys/param.h> 33b4dbc599SNathan Whitehorn #include <sys/systm.h> 34b4dbc599SNathan Whitehorn #include <sys/kernel.h> 35b4dbc599SNathan Whitehorn #include <sys/malloc.h> 36b4dbc599SNathan Whitehorn #include <sys/module.h> 37b4dbc599SNathan Whitehorn #include <sys/bus.h> 38b4dbc599SNathan Whitehorn #include <sys/rman.h> 39b4dbc599SNathan Whitehorn 40b4dbc599SNathan Whitehorn #include <vm/vm.h> 41b4dbc599SNathan Whitehorn #include <vm/pmap.h> 42b4dbc599SNathan Whitehorn 43*eaef5f0aSNathan Whitehorn #include <machine/bus.h> 44*eaef5f0aSNathan Whitehorn #include <machine/intr_machdep.h> 45*eaef5f0aSNathan Whitehorn #include <machine/pmap.h> 46b4dbc599SNathan Whitehorn #include <machine/resource.h> 47*eaef5f0aSNathan Whitehorn #include <machine/vmparam.h> 48b4dbc599SNathan Whitehorn 49b4dbc599SNathan Whitehorn #include <dev/ofw/ofw_bus.h> 50b4dbc599SNathan Whitehorn #include <dev/ofw/ofw_bus_subr.h> 51b4dbc599SNathan Whitehorn #include <dev/ofw/openfirm.h> 52b4dbc599SNathan Whitehorn 53ecf558fdSNathan Whitehorn #include <powerpc/powermac/macgpiovar.h> 54ecf558fdSNathan Whitehorn 55b4dbc599SNathan Whitehorn /* 56b4dbc599SNathan Whitehorn * Macgpio softc 57b4dbc599SNathan Whitehorn */ 58b4dbc599SNathan Whitehorn struct macgpio_softc { 59b4dbc599SNathan Whitehorn phandle_t sc_node; 60b4dbc599SNathan Whitehorn struct resource *sc_gpios; 61b4dbc599SNathan Whitehorn int sc_gpios_rid; 62b4dbc599SNathan Whitehorn }; 63b4dbc599SNathan Whitehorn 64b4dbc599SNathan Whitehorn static MALLOC_DEFINE(M_MACGPIO, "macgpio", "macgpio device information"); 65b4dbc599SNathan Whitehorn 66b4dbc599SNathan Whitehorn static int macgpio_probe(device_t); 67b4dbc599SNathan Whitehorn static int macgpio_attach(device_t); 68b4dbc599SNathan Whitehorn static int macgpio_print_child(device_t dev, device_t child); 69b4dbc599SNathan Whitehorn static void macgpio_probe_nomatch(device_t, device_t); 70b4dbc599SNathan Whitehorn static struct resource *macgpio_alloc_resource(device_t, device_t, int, int *, 71b4dbc599SNathan Whitehorn u_long, u_long, u_long, u_int); 72b4dbc599SNathan Whitehorn static int macgpio_activate_resource(device_t, device_t, int, int, 73b4dbc599SNathan Whitehorn struct resource *); 74b4dbc599SNathan Whitehorn static int macgpio_deactivate_resource(device_t, device_t, int, int, 75b4dbc599SNathan Whitehorn struct resource *); 76b4dbc599SNathan Whitehorn static ofw_bus_get_devinfo_t macgpio_get_devinfo; 77b4dbc599SNathan Whitehorn 78b4dbc599SNathan Whitehorn /* 79b4dbc599SNathan Whitehorn * Bus interface definition 80b4dbc599SNathan Whitehorn */ 81b4dbc599SNathan Whitehorn static device_method_t macgpio_methods[] = { 82b4dbc599SNathan Whitehorn /* Device interface */ 83b4dbc599SNathan Whitehorn DEVMETHOD(device_probe, macgpio_probe), 84b4dbc599SNathan Whitehorn DEVMETHOD(device_attach, macgpio_attach), 85b4dbc599SNathan Whitehorn DEVMETHOD(device_detach, bus_generic_detach), 86b4dbc599SNathan Whitehorn DEVMETHOD(device_shutdown, bus_generic_shutdown), 87b4dbc599SNathan Whitehorn DEVMETHOD(device_suspend, bus_generic_suspend), 88b4dbc599SNathan Whitehorn DEVMETHOD(device_resume, bus_generic_resume), 89b4dbc599SNathan Whitehorn 90b4dbc599SNathan Whitehorn /* Bus interface */ 91b4dbc599SNathan Whitehorn DEVMETHOD(bus_print_child, macgpio_print_child), 92b4dbc599SNathan Whitehorn DEVMETHOD(bus_probe_nomatch, macgpio_probe_nomatch), 93b4dbc599SNathan Whitehorn DEVMETHOD(bus_setup_intr, bus_generic_setup_intr), 94b4dbc599SNathan Whitehorn DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr), 95b4dbc599SNathan Whitehorn 96b4dbc599SNathan Whitehorn DEVMETHOD(bus_alloc_resource, macgpio_alloc_resource), 97b4dbc599SNathan Whitehorn DEVMETHOD(bus_activate_resource, macgpio_activate_resource), 98b4dbc599SNathan Whitehorn DEVMETHOD(bus_deactivate_resource, macgpio_deactivate_resource), 99b4dbc599SNathan Whitehorn DEVMETHOD(bus_release_resource, bus_generic_release_resource), 100b4dbc599SNathan Whitehorn 1014fe8025dSNathan Whitehorn DEVMETHOD(bus_child_pnpinfo_str, ofw_bus_gen_child_pnpinfo_str), 1024fe8025dSNathan Whitehorn 103b4dbc599SNathan Whitehorn /* ofw_bus interface */ 104b4dbc599SNathan Whitehorn DEVMETHOD(ofw_bus_get_devinfo, macgpio_get_devinfo), 105b4dbc599SNathan Whitehorn DEVMETHOD(ofw_bus_get_compat, ofw_bus_gen_get_compat), 106b4dbc599SNathan Whitehorn DEVMETHOD(ofw_bus_get_model, ofw_bus_gen_get_model), 107b4dbc599SNathan Whitehorn DEVMETHOD(ofw_bus_get_name, ofw_bus_gen_get_name), 108b4dbc599SNathan Whitehorn DEVMETHOD(ofw_bus_get_node, ofw_bus_gen_get_node), 109b4dbc599SNathan Whitehorn DEVMETHOD(ofw_bus_get_type, ofw_bus_gen_get_type), 110b4dbc599SNathan Whitehorn 111b4dbc599SNathan Whitehorn { 0, 0 } 112b4dbc599SNathan Whitehorn }; 113b4dbc599SNathan Whitehorn 114b4dbc599SNathan Whitehorn static driver_t macgpio_pci_driver = { 115b4dbc599SNathan Whitehorn "macgpio", 116b4dbc599SNathan Whitehorn macgpio_methods, 117b4dbc599SNathan Whitehorn sizeof(struct macgpio_softc) 118b4dbc599SNathan Whitehorn }; 119b4dbc599SNathan Whitehorn 120b4dbc599SNathan Whitehorn devclass_t macgpio_devclass; 121b4dbc599SNathan Whitehorn 122b4dbc599SNathan Whitehorn DRIVER_MODULE(macgpio, macio, macgpio_pci_driver, macgpio_devclass, 0, 0); 123b4dbc599SNathan Whitehorn 124b4dbc599SNathan Whitehorn struct macgpio_devinfo { 125b4dbc599SNathan Whitehorn struct ofw_bus_devinfo mdi_obdinfo; 126b4dbc599SNathan Whitehorn struct resource_list mdi_resources; 127b4dbc599SNathan Whitehorn 128b4dbc599SNathan Whitehorn int gpio_num; 129b4dbc599SNathan Whitehorn }; 130b4dbc599SNathan Whitehorn 131b4dbc599SNathan Whitehorn static int 132b4dbc599SNathan Whitehorn macgpio_probe(device_t dev) 133b4dbc599SNathan Whitehorn { 134b4dbc599SNathan Whitehorn const char *name; 135b4dbc599SNathan Whitehorn 136b4dbc599SNathan Whitehorn name = ofw_bus_get_name(dev); 137b4dbc599SNathan Whitehorn if (name && strcmp(name, "gpio") == 0) { 138b4dbc599SNathan Whitehorn device_set_desc(dev, "MacIO GPIO Controller"); 139b4dbc599SNathan Whitehorn return (0); 140b4dbc599SNathan Whitehorn } 141b4dbc599SNathan Whitehorn 142b4dbc599SNathan Whitehorn return (ENXIO); 143b4dbc599SNathan Whitehorn } 144b4dbc599SNathan Whitehorn 145b4dbc599SNathan Whitehorn /* 146b4dbc599SNathan Whitehorn * Scan Open Firmware child nodes, and attach these as children 147b4dbc599SNathan Whitehorn * of the macgpio bus 148b4dbc599SNathan Whitehorn */ 149b4dbc599SNathan Whitehorn static int 150b4dbc599SNathan Whitehorn macgpio_attach(device_t dev) 151b4dbc599SNathan Whitehorn { 152b4dbc599SNathan Whitehorn struct macgpio_softc *sc; 153b4dbc599SNathan Whitehorn struct macgpio_devinfo *dinfo; 154*eaef5f0aSNathan Whitehorn phandle_t root, child, iparent; 155b4dbc599SNathan Whitehorn device_t cdev; 156b4dbc599SNathan Whitehorn uint32_t irq; 157b4dbc599SNathan Whitehorn 158b4dbc599SNathan Whitehorn sc = device_get_softc(dev); 159b4dbc599SNathan Whitehorn root = sc->sc_node = ofw_bus_get_node(dev); 160b4dbc599SNathan Whitehorn 161b4dbc599SNathan Whitehorn sc->sc_gpios = bus_alloc_resource_any(dev, SYS_RES_MEMORY, 162b4dbc599SNathan Whitehorn &sc->sc_gpios_rid, RF_ACTIVE); 163b4dbc599SNathan Whitehorn 164b4dbc599SNathan Whitehorn /* 165b4dbc599SNathan Whitehorn * Iterate through the sub-devices 166b4dbc599SNathan Whitehorn */ 167b4dbc599SNathan Whitehorn for (child = OF_child(root); child != 0; child = OF_peer(child)) { 168b4dbc599SNathan Whitehorn dinfo = malloc(sizeof(*dinfo), M_MACGPIO, M_WAITOK | M_ZERO); 169b4dbc599SNathan Whitehorn if (ofw_bus_gen_setup_devinfo(&dinfo->mdi_obdinfo, child) != 170b4dbc599SNathan Whitehorn 0) { 171b4dbc599SNathan Whitehorn free(dinfo, M_MACGPIO); 172b4dbc599SNathan Whitehorn continue; 173b4dbc599SNathan Whitehorn } 174b4dbc599SNathan Whitehorn 175b4dbc599SNathan Whitehorn if (OF_getprop(child,"reg",&dinfo->gpio_num, 176b4dbc599SNathan Whitehorn sizeof(dinfo->gpio_num)) != sizeof(dinfo->gpio_num)) { 17748ed71b9SNathan Whitehorn /* 17848ed71b9SNathan Whitehorn * Some early GPIO controllers don't provide GPIO 17948ed71b9SNathan Whitehorn * numbers for GPIOs designed only to provide 18048ed71b9SNathan Whitehorn * interrupt resources. We should still allow these 18148ed71b9SNathan Whitehorn * to attach, but with caution. 18248ed71b9SNathan Whitehorn */ 18348ed71b9SNathan Whitehorn 18448ed71b9SNathan Whitehorn dinfo->gpio_num = -1; 185b4dbc599SNathan Whitehorn } 186b4dbc599SNathan Whitehorn 187b4dbc599SNathan Whitehorn resource_list_init(&dinfo->mdi_resources); 188b4dbc599SNathan Whitehorn 189b4dbc599SNathan Whitehorn if (OF_getprop(child, "interrupts", &irq, sizeof(irq)) == 190b4dbc599SNathan Whitehorn sizeof(irq)) { 191*eaef5f0aSNathan Whitehorn OF_searchprop(child, "interrupt-parent", &iparent, 192*eaef5f0aSNathan Whitehorn sizeof(iparent)); 193b4dbc599SNathan Whitehorn resource_list_add(&dinfo->mdi_resources, SYS_RES_IRQ, 194*eaef5f0aSNathan Whitehorn 0, INTR_VEC(iparent, irq), INTR_VEC(iparent, irq), 195*eaef5f0aSNathan Whitehorn 1); 196b4dbc599SNathan Whitehorn } 197b4dbc599SNathan Whitehorn 198b4dbc599SNathan Whitehorn /* Fix messed-up offsets */ 199b4dbc599SNathan Whitehorn if (dinfo->gpio_num > 0x50) 200b4dbc599SNathan Whitehorn dinfo->gpio_num -= 0x50; 201b4dbc599SNathan Whitehorn 202b4dbc599SNathan Whitehorn cdev = device_add_child(dev, NULL, -1); 203b4dbc599SNathan Whitehorn if (cdev == NULL) { 204b4dbc599SNathan Whitehorn device_printf(dev, "<%s>: device_add_child failed\n", 205b4dbc599SNathan Whitehorn dinfo->mdi_obdinfo.obd_name); 206b4dbc599SNathan Whitehorn ofw_bus_gen_destroy_devinfo(&dinfo->mdi_obdinfo); 207b4dbc599SNathan Whitehorn free(dinfo, M_MACGPIO); 208b4dbc599SNathan Whitehorn continue; 209b4dbc599SNathan Whitehorn } 210b4dbc599SNathan Whitehorn device_set_ivars(cdev, dinfo); 211b4dbc599SNathan Whitehorn } 212b4dbc599SNathan Whitehorn 213b4dbc599SNathan Whitehorn return (bus_generic_attach(dev)); 214b4dbc599SNathan Whitehorn } 215b4dbc599SNathan Whitehorn 216b4dbc599SNathan Whitehorn 217b4dbc599SNathan Whitehorn static int 218b4dbc599SNathan Whitehorn macgpio_print_child(device_t dev, device_t child) 219b4dbc599SNathan Whitehorn { 220b4dbc599SNathan Whitehorn struct macgpio_devinfo *dinfo; 221b4dbc599SNathan Whitehorn int retval = 0; 222b4dbc599SNathan Whitehorn 223b4dbc599SNathan Whitehorn dinfo = device_get_ivars(child); 224b4dbc599SNathan Whitehorn 225b4dbc599SNathan Whitehorn retval += bus_print_child_header(dev, child); 226b4dbc599SNathan Whitehorn 227ecf558fdSNathan Whitehorn if (dinfo->gpio_num >= GPIO_BASE) 228ecf558fdSNathan Whitehorn printf(" gpio %d", dinfo->gpio_num - GPIO_BASE); 229ecf558fdSNathan Whitehorn else if (dinfo->gpio_num >= GPIO_EXTINT_BASE) 230ecf558fdSNathan Whitehorn printf(" extint-gpio %d", dinfo->gpio_num - GPIO_EXTINT_BASE); 23148ed71b9SNathan Whitehorn else if (dinfo->gpio_num >= 0) 232ecf558fdSNathan Whitehorn printf(" addr 0x%02x", dinfo->gpio_num); /* should not happen */ 233ecf558fdSNathan Whitehorn 234b4dbc599SNathan Whitehorn resource_list_print_type(&dinfo->mdi_resources, "irq", SYS_RES_IRQ, 235b4dbc599SNathan Whitehorn "%ld"); 236b4dbc599SNathan Whitehorn retval += bus_print_child_footer(dev, child); 237b4dbc599SNathan Whitehorn 238b4dbc599SNathan Whitehorn return (retval); 239b4dbc599SNathan Whitehorn } 240b4dbc599SNathan Whitehorn 241b4dbc599SNathan Whitehorn 242b4dbc599SNathan Whitehorn static void 243b4dbc599SNathan Whitehorn macgpio_probe_nomatch(device_t dev, device_t child) 244b4dbc599SNathan Whitehorn { 245b4dbc599SNathan Whitehorn struct macgpio_devinfo *dinfo; 246b4dbc599SNathan Whitehorn const char *type; 247b4dbc599SNathan Whitehorn 248b4dbc599SNathan Whitehorn if (bootverbose) { 249b4dbc599SNathan Whitehorn dinfo = device_get_ivars(child); 250b4dbc599SNathan Whitehorn 251b4dbc599SNathan Whitehorn if ((type = ofw_bus_get_type(child)) == NULL) 252b4dbc599SNathan Whitehorn type = "(unknown)"; 253b4dbc599SNathan Whitehorn device_printf(dev, "<%s, %s>", type, ofw_bus_get_name(child)); 25448ed71b9SNathan Whitehorn if (dinfo->gpio_num >= 0) 255b4dbc599SNathan Whitehorn printf(" gpio %d",dinfo->gpio_num); 256b4dbc599SNathan Whitehorn resource_list_print_type(&dinfo->mdi_resources, "irq", 257b4dbc599SNathan Whitehorn SYS_RES_IRQ, "%ld"); 258b4dbc599SNathan Whitehorn printf(" (no driver attached)\n"); 259b4dbc599SNathan Whitehorn } 260b4dbc599SNathan Whitehorn } 261b4dbc599SNathan Whitehorn 262b4dbc599SNathan Whitehorn 263b4dbc599SNathan Whitehorn static struct resource * 264b4dbc599SNathan Whitehorn macgpio_alloc_resource(device_t bus, device_t child, int type, int *rid, 265b4dbc599SNathan Whitehorn u_long start, u_long end, u_long count, u_int flags) 266b4dbc599SNathan Whitehorn { 267b4dbc599SNathan Whitehorn struct macgpio_softc *sc; 268b4dbc599SNathan Whitehorn struct macgpio_devinfo *dinfo; 269b4dbc599SNathan Whitehorn 270b4dbc599SNathan Whitehorn sc = device_get_softc(bus); 271b4dbc599SNathan Whitehorn dinfo = device_get_ivars(child); 272b4dbc599SNathan Whitehorn 273b4dbc599SNathan Whitehorn if (type != SYS_RES_IRQ) 274b4dbc599SNathan Whitehorn return (NULL); 275b4dbc599SNathan Whitehorn 276b4dbc599SNathan Whitehorn return (resource_list_alloc(&dinfo->mdi_resources, bus, child, type, 277b4dbc599SNathan Whitehorn rid, start, end, count, flags)); 278b4dbc599SNathan Whitehorn } 279b4dbc599SNathan Whitehorn 280b4dbc599SNathan Whitehorn static int 281b4dbc599SNathan Whitehorn macgpio_activate_resource(device_t bus, device_t child, int type, int rid, 282b4dbc599SNathan Whitehorn struct resource *res) 283b4dbc599SNathan Whitehorn { 284b4dbc599SNathan Whitehorn struct macgpio_softc *sc; 285b4dbc599SNathan Whitehorn struct macgpio_devinfo *dinfo; 286b4dbc599SNathan Whitehorn u_char val; 287b4dbc599SNathan Whitehorn 288b4dbc599SNathan Whitehorn sc = device_get_softc(bus); 289b4dbc599SNathan Whitehorn dinfo = device_get_ivars(child); 290b4dbc599SNathan Whitehorn 291b4dbc599SNathan Whitehorn if (type != SYS_RES_IRQ) 292b4dbc599SNathan Whitehorn return ENXIO; 293b4dbc599SNathan Whitehorn 29448ed71b9SNathan Whitehorn if (dinfo->gpio_num >= 0) { 295b4dbc599SNathan Whitehorn val = bus_read_1(sc->sc_gpios,dinfo->gpio_num); 296b4dbc599SNathan Whitehorn val |= 0x80; 297b4dbc599SNathan Whitehorn bus_write_1(sc->sc_gpios,dinfo->gpio_num,val); 29848ed71b9SNathan Whitehorn } 299b4dbc599SNathan Whitehorn 300b4dbc599SNathan Whitehorn return (bus_activate_resource(bus, type, rid, res)); 301b4dbc599SNathan Whitehorn } 302b4dbc599SNathan Whitehorn 303b4dbc599SNathan Whitehorn 304b4dbc599SNathan Whitehorn static int 305b4dbc599SNathan Whitehorn macgpio_deactivate_resource(device_t bus, device_t child, int type, int rid, 306b4dbc599SNathan Whitehorn struct resource *res) 307b4dbc599SNathan Whitehorn { 308b4dbc599SNathan Whitehorn struct macgpio_softc *sc; 309b4dbc599SNathan Whitehorn struct macgpio_devinfo *dinfo; 310b4dbc599SNathan Whitehorn u_char val; 311b4dbc599SNathan Whitehorn 312b4dbc599SNathan Whitehorn sc = device_get_softc(bus); 313b4dbc599SNathan Whitehorn dinfo = device_get_ivars(child); 314b4dbc599SNathan Whitehorn 315b4dbc599SNathan Whitehorn if (type != SYS_RES_IRQ) 316b4dbc599SNathan Whitehorn return ENXIO; 317b4dbc599SNathan Whitehorn 31848ed71b9SNathan Whitehorn if (dinfo->gpio_num >= 0) { 319b4dbc599SNathan Whitehorn val = bus_read_1(sc->sc_gpios,dinfo->gpio_num); 320b4dbc599SNathan Whitehorn val &= ~0x80; 321b4dbc599SNathan Whitehorn bus_write_1(sc->sc_gpios,dinfo->gpio_num,val); 32248ed71b9SNathan Whitehorn } 323b4dbc599SNathan Whitehorn 324b4dbc599SNathan Whitehorn return (bus_deactivate_resource(bus, type, rid, res)); 325b4dbc599SNathan Whitehorn } 326b4dbc599SNathan Whitehorn 327b4dbc599SNathan Whitehorn uint8_t 328b4dbc599SNathan Whitehorn macgpio_read(device_t dev) 329b4dbc599SNathan Whitehorn { 330b4dbc599SNathan Whitehorn struct macgpio_softc *sc; 331b4dbc599SNathan Whitehorn struct macgpio_devinfo *dinfo; 332b4dbc599SNathan Whitehorn 333b4dbc599SNathan Whitehorn sc = device_get_softc(device_get_parent(dev)); 334b4dbc599SNathan Whitehorn dinfo = device_get_ivars(dev); 335b4dbc599SNathan Whitehorn 33648ed71b9SNathan Whitehorn if (dinfo->gpio_num < 0) 33748ed71b9SNathan Whitehorn return (0); 33848ed71b9SNathan Whitehorn 339b4dbc599SNathan Whitehorn return (bus_read_1(sc->sc_gpios,dinfo->gpio_num)); 340b4dbc599SNathan Whitehorn } 341b4dbc599SNathan Whitehorn 342b4dbc599SNathan Whitehorn void 343b4dbc599SNathan Whitehorn macgpio_write(device_t dev, uint8_t val) 344b4dbc599SNathan Whitehorn { 345b4dbc599SNathan Whitehorn struct macgpio_softc *sc; 346b4dbc599SNathan Whitehorn struct macgpio_devinfo *dinfo; 347b4dbc599SNathan Whitehorn 348b4dbc599SNathan Whitehorn sc = device_get_softc(device_get_parent(dev)); 349b4dbc599SNathan Whitehorn dinfo = device_get_ivars(dev); 350b4dbc599SNathan Whitehorn 35148ed71b9SNathan Whitehorn if (dinfo->gpio_num < 0) 35248ed71b9SNathan Whitehorn return; 35348ed71b9SNathan Whitehorn 354b4dbc599SNathan Whitehorn bus_write_1(sc->sc_gpios,dinfo->gpio_num,val); 355b4dbc599SNathan Whitehorn } 356b4dbc599SNathan Whitehorn 357b4dbc599SNathan Whitehorn static const struct ofw_bus_devinfo * 358b4dbc599SNathan Whitehorn macgpio_get_devinfo(device_t dev, device_t child) 359b4dbc599SNathan Whitehorn { 360b4dbc599SNathan Whitehorn struct macgpio_devinfo *dinfo; 361b4dbc599SNathan Whitehorn 362b4dbc599SNathan Whitehorn dinfo = device_get_ivars(child); 363b4dbc599SNathan Whitehorn return (&dinfo->mdi_obdinfo); 364b4dbc599SNathan Whitehorn } 365b4dbc599SNathan Whitehorn 366