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: src/sys/isa/atkbdc_isa.c,v 1.14.2.1 2000/03/31 12:52:05 yokota Exp $ 27 * $DragonFly: src/sys/dev/misc/atkbdc_layer/atkbdc_isa.c,v 1.3 2003/08/07 21:16:56 dillon Exp $ 28 */ 29 30 #include "opt_kbd.h" 31 32 #include <sys/param.h> 33 #include <sys/systm.h> 34 #include <sys/kernel.h> 35 #include <sys/bus.h> 36 #include <sys/malloc.h> 37 #include <machine/bus_pio.h> 38 #include <machine/bus.h> 39 #include <machine/resource.h> 40 #include <sys/rman.h> 41 42 #include <dev/misc/kbd/atkbdcreg.h> 43 44 #include <bus/isa/isareg.h> 45 #include <bus/isa/isavar.h> 46 47 MALLOC_DEFINE(M_ATKBDDEV, "atkbddev", "AT Keyboard device"); 48 49 /* children */ 50 typedef struct atkbdc_device { 51 int flags; /* configuration flags */ 52 int irq; /* ISA IRQ mask */ 53 u_int32_t vendorid; 54 u_int32_t serial; 55 u_int32_t logicalid; 56 u_int32_t compatid; 57 } atkbdc_device_t; 58 59 /* kbdc */ 60 devclass_t atkbdc_devclass; 61 62 static int atkbdc_probe(device_t dev); 63 static int atkbdc_attach(device_t dev); 64 static int atkbdc_print_child(device_t bus, device_t dev); 65 static int atkbdc_read_ivar(device_t bus, device_t dev, int index, 66 u_long *val); 67 static int atkbdc_write_ivar(device_t bus, device_t dev, int index, 68 u_long val); 69 70 static device_method_t atkbdc_methods[] = { 71 DEVMETHOD(device_probe, atkbdc_probe), 72 DEVMETHOD(device_attach, atkbdc_attach), 73 DEVMETHOD(device_suspend, bus_generic_suspend), 74 DEVMETHOD(device_resume, bus_generic_resume), 75 76 DEVMETHOD(bus_print_child, atkbdc_print_child), 77 DEVMETHOD(bus_read_ivar, atkbdc_read_ivar), 78 DEVMETHOD(bus_write_ivar, atkbdc_write_ivar), 79 DEVMETHOD(bus_alloc_resource, bus_generic_alloc_resource), 80 DEVMETHOD(bus_release_resource, bus_generic_release_resource), 81 DEVMETHOD(bus_activate_resource, bus_generic_activate_resource), 82 DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource), 83 DEVMETHOD(bus_setup_intr, bus_generic_setup_intr), 84 DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr), 85 86 { 0, 0 } 87 }; 88 89 static driver_t atkbdc_driver = { 90 ATKBDC_DRIVER_NAME, 91 atkbdc_methods, 92 sizeof(atkbdc_softc_t *), 93 }; 94 95 static struct isa_pnp_id atkbdc_ids[] = { 96 { 0x0303d041, "Keyboard controller (i8042)" }, /* PNP0303 */ 97 { 0 } 98 }; 99 100 static int 101 atkbdc_probe(device_t dev) 102 { 103 struct resource *port0; 104 struct resource *port1; 105 int error; 106 int rid; 107 108 /* check PnP IDs */ 109 if (ISA_PNP_PROBE(device_get_parent(dev), dev, atkbdc_ids) == ENXIO) 110 return ENXIO; 111 112 device_set_desc(dev, "Keyboard controller (i8042)"); 113 114 rid = 0; 115 port0 = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 0, ~0, 1, 116 RF_ACTIVE); 117 if (port0 == NULL) 118 return ENXIO; 119 /* XXX */ 120 if (bus_get_resource_start(dev, SYS_RES_IOPORT, 1) <= 0) { 121 bus_set_resource(dev, SYS_RES_IOPORT, 1, 122 rman_get_start(port0) + KBD_STATUS_PORT, 1); 123 } 124 rid = 1; 125 port1 = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 0, ~0, 1, 126 RF_ACTIVE); 127 if (port1 == NULL) { 128 bus_release_resource(dev, SYS_RES_IOPORT, 0, port0); 129 return ENXIO; 130 } 131 132 error = atkbdc_probe_unit(device_get_unit(dev), port0, port1); 133 134 bus_release_resource(dev, SYS_RES_IOPORT, 0, port0); 135 bus_release_resource(dev, SYS_RES_IOPORT, 1, port1); 136 137 return error; 138 } 139 140 static void 141 atkbdc_add_device(device_t dev, const char *name, int unit) 142 { 143 atkbdc_device_t *kdev; 144 device_t child; 145 int t; 146 147 if (resource_int_value(name, unit, "disabled", &t) == 0 && t != 0) 148 return; 149 150 kdev = malloc(sizeof(struct atkbdc_device), M_ATKBDDEV, M_NOWAIT); 151 if (!kdev) 152 return; 153 bzero(kdev, sizeof *kdev); 154 155 if (resource_int_value(name, unit, "irq", &t) == 0) 156 kdev->irq = t; 157 else 158 kdev->irq = -1; 159 160 if (resource_int_value(name, unit, "flags", &t) == 0) 161 kdev->flags = t; 162 else 163 kdev->flags = 0; 164 165 child = device_add_child(dev, name, unit); 166 device_set_ivars(child, kdev); 167 } 168 169 static int 170 atkbdc_attach(device_t dev) 171 { 172 atkbdc_softc_t *sc; 173 int unit; 174 int error; 175 int rid; 176 int i; 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 for (i = resource_query_string(-1, "at", device_get_nameunit(dev)); 218 i != -1; 219 i = resource_query_string(i, "at", device_get_nameunit(dev))) { 220 atkbdc_add_device(dev, resource_query_name(i), 221 resource_query_unit(i)); 222 } 223 224 /* 225 * and atkbdc? 226 */ 227 for (i = resource_query_string(-1, "at", device_get_name(dev)); 228 i != -1; 229 i = resource_query_string(i, "at", device_get_name(dev))) { 230 atkbdc_add_device(dev, resource_query_name(i), 231 resource_query_unit(i)); 232 } 233 234 bus_generic_attach(dev); 235 236 return 0; 237 } 238 239 static int 240 atkbdc_print_child(device_t bus, device_t dev) 241 { 242 atkbdc_device_t *kbdcdev; 243 int retval = 0; 244 245 kbdcdev = (atkbdc_device_t *)device_get_ivars(dev); 246 247 retval += bus_print_child_header(bus, dev); 248 if (kbdcdev->flags != 0) 249 retval += printf(" flags 0x%x", kbdcdev->flags); 250 if (kbdcdev->irq != -1) 251 retval += printf(" irq %d", kbdcdev->irq); 252 retval += bus_print_child_footer(bus, dev); 253 254 return (retval); 255 } 256 257 static int 258 atkbdc_read_ivar(device_t bus, device_t dev, int index, u_long *val) 259 { 260 atkbdc_device_t *ivar; 261 262 ivar = (atkbdc_device_t *)device_get_ivars(dev); 263 switch (index) { 264 case KBDC_IVAR_IRQ: 265 *val = (u_long)ivar->irq; 266 break; 267 case KBDC_IVAR_FLAGS: 268 *val = (u_long)ivar->flags; 269 break; 270 case KBDC_IVAR_VENDORID: 271 *val = (u_long)ivar->vendorid; 272 break; 273 case KBDC_IVAR_SERIAL: 274 *val = (u_long)ivar->serial; 275 break; 276 case KBDC_IVAR_LOGICALID: 277 *val = (u_long)ivar->logicalid; 278 break; 279 case KBDC_IVAR_COMPATID: 280 *val = (u_long)ivar->compatid; 281 break; 282 default: 283 return ENOENT; 284 } 285 return 0; 286 } 287 288 static int 289 atkbdc_write_ivar(device_t bus, device_t dev, int index, u_long val) 290 { 291 atkbdc_device_t *ivar; 292 293 ivar = (atkbdc_device_t *)device_get_ivars(dev); 294 switch (index) { 295 case KBDC_IVAR_IRQ: 296 ivar->irq = (int)val; 297 break; 298 case KBDC_IVAR_FLAGS: 299 ivar->flags = (int)val; 300 break; 301 case KBDC_IVAR_VENDORID: 302 ivar->vendorid = (u_int32_t)val; 303 break; 304 case KBDC_IVAR_SERIAL: 305 ivar->serial = (u_int32_t)val; 306 break; 307 case KBDC_IVAR_LOGICALID: 308 ivar->logicalid = (u_int32_t)val; 309 break; 310 case KBDC_IVAR_COMPATID: 311 ivar->compatid = (u_int32_t)val; 312 break; 313 default: 314 return ENOENT; 315 } 316 return 0; 317 } 318 319 DRIVER_MODULE(atkbdc, isa, atkbdc_driver, atkbdc_devclass, 0, 0); 320