atkbdc_isa.c revision 67153
1/*- 2 * Copyright (c) 1999 Kazutaka YOKOTA <yokota@zodiac.mech.utsunomiya-u.ac.jp> 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer as 10 * the first lines of this file unmodified. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 15 * THIS SOFTWARE IS PROVIDED BY THE AUTHORS ``AS IS'' AND ANY EXPRESS OR 16 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES 17 * OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. 18 * IN NO EVENT SHALL THE AUTHORS BE LIABLE FOR ANY DIRECT, INDIRECT, 19 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT 20 * NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, 21 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY 22 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT 23 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF 24 * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 25 * 26 * $FreeBSD: head/sys/dev/atkbdc/atkbdc_isa.c 67153 2000-10-15 08:50:45Z peter $ 27 */ 28 29#include "opt_kbd.h" 30 31#include <sys/param.h> 32#include <sys/systm.h> 33#include <sys/kernel.h> 34#include <sys/bus.h> 35#include <sys/malloc.h> 36#include <machine/bus_pio.h> 37#include <machine/bus.h> 38#include <machine/resource.h> 39#include <sys/rman.h> 40 41#include <dev/kbd/atkbdcreg.h> 42 43#include <isa/isareg.h> 44#include <isa/isavar.h> 45 46MALLOC_DEFINE(M_ATKBDDEV, "atkbddev", "AT Keyboard device"); 47 48/* children */ 49typedef struct atkbdc_device { 50 int flags; /* configuration flags */ 51 int irq; /* ISA IRQ mask */ 52 u_int32_t vendorid; 53 u_int32_t serial; 54 u_int32_t logicalid; 55 u_int32_t compatid; 56} atkbdc_device_t; 57 58/* kbdc */ 59devclass_t atkbdc_devclass; 60 61static int atkbdc_probe(device_t dev); 62static int atkbdc_attach(device_t dev); 63static int atkbdc_print_child(device_t bus, device_t dev); 64static int atkbdc_read_ivar(device_t bus, device_t dev, int index, 65 uintptr_t *val); 66static int atkbdc_write_ivar(device_t bus, device_t dev, int index, 67 uintptr_t val); 68 69static device_method_t atkbdc_methods[] = { 70 DEVMETHOD(device_probe, atkbdc_probe), 71 DEVMETHOD(device_attach, atkbdc_attach), 72 DEVMETHOD(device_suspend, bus_generic_suspend), 73 DEVMETHOD(device_resume, bus_generic_resume), 74 75 DEVMETHOD(bus_print_child, atkbdc_print_child), 76 DEVMETHOD(bus_read_ivar, atkbdc_read_ivar), 77 DEVMETHOD(bus_write_ivar, atkbdc_write_ivar), 78 DEVMETHOD(bus_alloc_resource, bus_generic_alloc_resource), 79 DEVMETHOD(bus_release_resource, bus_generic_release_resource), 80 DEVMETHOD(bus_activate_resource, bus_generic_activate_resource), 81 DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource), 82 DEVMETHOD(bus_setup_intr, bus_generic_setup_intr), 83 DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr), 84 85 { 0, 0 } 86}; 87 88static driver_t atkbdc_driver = { 89 ATKBDC_DRIVER_NAME, 90 atkbdc_methods, 91 sizeof(atkbdc_softc_t *), 92}; 93 94static struct isa_pnp_id atkbdc_ids[] = { 95 { 0x0303d041, "Keyboard controller (i8042)" }, /* PNP0303 */ 96 { 0 } 97}; 98 99static int 100atkbdc_probe(device_t dev) 101{ 102 struct resource *port0; 103 struct resource *port1; 104 int error; 105 int rid; 106 107 /* check PnP IDs */ 108 if (ISA_PNP_PROBE(device_get_parent(dev), dev, atkbdc_ids) == ENXIO) 109 return ENXIO; 110 111 device_set_desc(dev, "Keyboard controller (i8042)"); 112 113 rid = 0; 114 port0 = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 0, ~0, 1, 115 RF_ACTIVE); 116 if (port0 == NULL) 117 return ENXIO; 118 /* XXX */ 119 if (bus_get_resource_start(dev, SYS_RES_IOPORT, 1) <= 0) { 120 bus_set_resource(dev, SYS_RES_IOPORT, 1, 121 rman_get_start(port0) + KBD_STATUS_PORT, 1); 122 } 123 rid = 1; 124 port1 = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 0, ~0, 1, 125 RF_ACTIVE); 126 if (port1 == NULL) { 127 bus_release_resource(dev, SYS_RES_IOPORT, 0, port0); 128 return ENXIO; 129 } 130 131 error = atkbdc_probe_unit(device_get_unit(dev), port0, port1); 132 133 bus_release_resource(dev, SYS_RES_IOPORT, 0, port0); 134 bus_release_resource(dev, SYS_RES_IOPORT, 1, port1); 135 136 return error; 137} 138 139static void 140atkbdc_add_device(device_t dev, const char *name, int unit) 141{ 142 atkbdc_device_t *kdev; 143 device_t child; 144 int t; 145 146 if (resource_int_value(name, unit, "disabled", &t) == 0 && t != 0) 147 return; 148 149 kdev = malloc(sizeof(struct atkbdc_device), M_ATKBDDEV, M_NOWAIT); 150 if (!kdev) 151 return; 152 bzero(kdev, sizeof *kdev); 153 154 if (resource_int_value(name, unit, "irq", &t) == 0) 155 kdev->irq = t; 156 else 157 kdev->irq = -1; 158 159 if (resource_int_value(name, unit, "flags", &t) == 0) 160 kdev->flags = t; 161 else 162 kdev->flags = 0; 163 164 child = device_add_child(dev, name, unit); 165 device_set_ivars(child, kdev); 166} 167 168static int 169atkbdc_attach(device_t dev) 170{ 171 atkbdc_softc_t *sc; 172 int unit; 173 int error; 174 int rid; 175 int i; 176 const char *name; 177 178 unit = device_get_unit(dev); 179 sc = *(atkbdc_softc_t **)device_get_softc(dev); 180 if (sc == NULL) { 181 /* 182 * We have to maintain two copies of the kbdc_softc struct, 183 * as the low-level console needs to have access to the 184 * keyboard controller before kbdc is probed and attached. 185 * kbdc_soft[] contains the default entry for that purpose. 186 * See atkbdc.c. XXX 187 */ 188 sc = atkbdc_get_softc(unit); 189 if (sc == NULL) 190 return ENOMEM; 191 } 192 193 rid = 0; 194 sc->port0 = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 0, ~0, 1, 195 RF_ACTIVE); 196 if (sc->port0 == NULL) 197 return ENXIO; 198 rid = 1; 199 sc->port1 = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 0, ~0, 1, 200 RF_ACTIVE); 201 if (sc->port1 == NULL) { 202 bus_release_resource(dev, SYS_RES_IOPORT, 0, sc->port0); 203 return ENXIO; 204 } 205 206 error = atkbdc_attach_unit(unit, sc, sc->port0, sc->port1); 207 if (error) { 208 bus_release_resource(dev, SYS_RES_IOPORT, 0, sc->port0); 209 bus_release_resource(dev, SYS_RES_IOPORT, 1, sc->port1); 210 return error; 211 } 212 *(atkbdc_softc_t **)device_get_softc(dev) = sc; 213 214 /* 215 * Add all devices configured to be attached to atkbdc0. 216 */ 217 name = device_get_nameunit(dev); 218 i = -1; 219 while ((i = resource_query_string(i, "at", name)) != -1) 220 atkbdc_add_device(dev, resource_query_name(i), 221 resource_query_unit(i)); 222 223 /* 224 * and atkbdc? 225 */ 226 name = device_get_name(dev); 227 i = -1; 228 while ((i = resource_query_string(i, "at", name)) != -1) 229 atkbdc_add_device(dev, resource_query_name(i), 230 resource_query_unit(i)); 231 232 bus_generic_attach(dev); 233 234 return 0; 235} 236 237static int 238atkbdc_print_child(device_t bus, device_t dev) 239{ 240 atkbdc_device_t *kbdcdev; 241 int retval = 0; 242 243 kbdcdev = (atkbdc_device_t *)device_get_ivars(dev); 244 245 retval += bus_print_child_header(bus, dev); 246 if (kbdcdev->flags != 0) 247 retval += printf(" flags 0x%x", kbdcdev->flags); 248 if (kbdcdev->irq != -1) 249 retval += printf(" irq %d", kbdcdev->irq); 250 retval += bus_print_child_footer(bus, dev); 251 252 return (retval); 253} 254 255static int 256atkbdc_read_ivar(device_t bus, device_t dev, int index, uintptr_t *val) 257{ 258 atkbdc_device_t *ivar; 259 260 ivar = (atkbdc_device_t *)device_get_ivars(dev); 261 switch (index) { 262 case KBDC_IVAR_IRQ: 263 *val = (u_long)ivar->irq; 264 break; 265 case KBDC_IVAR_FLAGS: 266 *val = (u_long)ivar->flags; 267 break; 268 case KBDC_IVAR_VENDORID: 269 *val = (u_long)ivar->vendorid; 270 break; 271 case KBDC_IVAR_SERIAL: 272 *val = (u_long)ivar->serial; 273 break; 274 case KBDC_IVAR_LOGICALID: 275 *val = (u_long)ivar->logicalid; 276 break; 277 case KBDC_IVAR_COMPATID: 278 *val = (u_long)ivar->compatid; 279 break; 280 default: 281 return ENOENT; 282 } 283 return 0; 284} 285 286static int 287atkbdc_write_ivar(device_t bus, device_t dev, int index, uintptr_t val) 288{ 289 atkbdc_device_t *ivar; 290 291 ivar = (atkbdc_device_t *)device_get_ivars(dev); 292 switch (index) { 293 case KBDC_IVAR_IRQ: 294 ivar->irq = (int)val; 295 break; 296 case KBDC_IVAR_FLAGS: 297 ivar->flags = (int)val; 298 break; 299 case KBDC_IVAR_VENDORID: 300 ivar->vendorid = (u_int32_t)val; 301 break; 302 case KBDC_IVAR_SERIAL: 303 ivar->serial = (u_int32_t)val; 304 break; 305 case KBDC_IVAR_LOGICALID: 306 ivar->logicalid = (u_int32_t)val; 307 break; 308 case KBDC_IVAR_COMPATID: 309 ivar->compatid = (u_int32_t)val; 310 break; 311 default: 312 return ENOENT; 313 } 314 return 0; 315} 316 317DRIVER_MODULE(atkbdc, isa, atkbdc_driver, atkbdc_devclass, 0, 0); 318