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 1.7 2006/12/22 23:26:17 swildner 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 <sys/rman.h> 38 39 #include <dev/misc/kbd/atkbdcreg.h> 40 41 #include <bus/isa/isareg.h> 42 #include <bus/isa/isavar.h> 43 44 MALLOC_DEFINE(M_ATKBDDEV, "atkbddev", "AT Keyboard device"); 45 46 /* children */ 47 typedef struct atkbdc_device { 48 int flags; /* configuration flags */ 49 int irq; /* ISA IRQ mask */ 50 u_int32_t vendorid; 51 u_int32_t serial; 52 u_int32_t logicalid; 53 u_int32_t compatid; 54 } atkbdc_device_t; 55 56 /* kbdc */ 57 devclass_t atkbdc_devclass; 58 59 static int atkbdc_probe(device_t dev); 60 static int atkbdc_attach(device_t dev); 61 static int atkbdc_print_child(device_t bus, device_t dev); 62 static int atkbdc_read_ivar(device_t bus, device_t dev, int index, 63 u_long *val); 64 static int atkbdc_write_ivar(device_t bus, device_t dev, int index, 65 u_long val); 66 67 static device_method_t atkbdc_methods[] = { 68 DEVMETHOD(device_probe, atkbdc_probe), 69 DEVMETHOD(device_attach, atkbdc_attach), 70 DEVMETHOD(device_suspend, bus_generic_suspend), 71 DEVMETHOD(device_resume, bus_generic_resume), 72 73 DEVMETHOD(bus_print_child, atkbdc_print_child), 74 DEVMETHOD(bus_read_ivar, atkbdc_read_ivar), 75 DEVMETHOD(bus_write_ivar, atkbdc_write_ivar), 76 DEVMETHOD(bus_alloc_resource, bus_generic_alloc_resource), 77 DEVMETHOD(bus_release_resource, bus_generic_release_resource), 78 DEVMETHOD(bus_activate_resource, bus_generic_activate_resource), 79 DEVMETHOD(bus_deactivate_resource, bus_generic_deactivate_resource), 80 DEVMETHOD(bus_setup_intr, bus_generic_setup_intr), 81 DEVMETHOD(bus_teardown_intr, bus_generic_teardown_intr), 82 83 { 0, 0 } 84 }; 85 86 static driver_t atkbdc_driver = { 87 ATKBDC_DRIVER_NAME, 88 atkbdc_methods, 89 sizeof(atkbdc_softc_t *), 90 }; 91 92 static struct isa_pnp_id atkbdc_ids[] = { 93 { 0x0303d041, "Keyboard controller (i8042)" }, /* PNP0303 */ 94 { 0 } 95 }; 96 97 static int 98 atkbdc_probe(device_t dev) 99 { 100 struct resource *port0; 101 struct resource *port1; 102 int error; 103 int rid; 104 105 /* check PnP IDs */ 106 if (ISA_PNP_PROBE(device_get_parent(dev), dev, atkbdc_ids) == ENXIO) 107 return ENXIO; 108 109 device_set_desc(dev, "Keyboard controller (i8042)"); 110 111 rid = 0; 112 port0 = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 0, ~0, 1, 113 RF_ACTIVE); 114 if (port0 == NULL) 115 return ENXIO; 116 /* XXX */ 117 if (bus_get_resource_start(dev, SYS_RES_IOPORT, 1) <= 0) { 118 bus_set_resource(dev, SYS_RES_IOPORT, 1, 119 rman_get_start(port0) + KBD_STATUS_PORT, 1); 120 } 121 rid = 1; 122 port1 = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 0, ~0, 1, 123 RF_ACTIVE); 124 if (port1 == NULL) { 125 bus_release_resource(dev, SYS_RES_IOPORT, 0, port0); 126 return ENXIO; 127 } 128 129 error = atkbdc_probe_unit(device_get_unit(dev), port0, port1); 130 131 bus_release_resource(dev, SYS_RES_IOPORT, 0, port0); 132 bus_release_resource(dev, SYS_RES_IOPORT, 1, port1); 133 134 return error; 135 } 136 137 static void 138 atkbdc_add_device(device_t dev, const char *name, int unit) 139 { 140 atkbdc_device_t *kdev; 141 device_t child; 142 int t; 143 144 if (resource_int_value(name, unit, "disabled", &t) == 0 && t != 0) 145 return; 146 147 kdev = kmalloc(sizeof(struct atkbdc_device), M_ATKBDDEV, 148 M_WAITOK | M_ZERO); 149 150 if (resource_int_value(name, unit, "irq", &t) == 0) 151 kdev->irq = t; 152 else 153 kdev->irq = -1; 154 155 if (resource_int_value(name, unit, "flags", &t) == 0) 156 kdev->flags = t; 157 else 158 kdev->flags = 0; 159 160 child = device_add_child(dev, name, unit); 161 device_set_ivars(child, kdev); 162 } 163 164 static int 165 atkbdc_attach(device_t dev) 166 { 167 atkbdc_softc_t *sc; 168 int unit; 169 int error; 170 int rid; 171 int i; 172 173 unit = device_get_unit(dev); 174 sc = *(atkbdc_softc_t **)device_get_softc(dev); 175 if (sc == NULL) { 176 /* 177 * We have to maintain two copies of the kbdc_softc struct, 178 * as the low-level console needs to have access to the 179 * keyboard controller before kbdc is probed and attached. 180 * kbdc_soft[] contains the default entry for that purpose. 181 * See atkbdc.c. XXX 182 */ 183 sc = atkbdc_get_softc(unit); 184 if (sc == NULL) 185 return ENOMEM; 186 } 187 188 rid = 0; 189 sc->port0 = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 0, ~0, 1, 190 RF_ACTIVE); 191 if (sc->port0 == NULL) 192 return ENXIO; 193 rid = 1; 194 sc->port1 = bus_alloc_resource(dev, SYS_RES_IOPORT, &rid, 0, ~0, 1, 195 RF_ACTIVE); 196 if (sc->port1 == NULL) { 197 bus_release_resource(dev, SYS_RES_IOPORT, 0, sc->port0); 198 return ENXIO; 199 } 200 201 error = atkbdc_attach_unit(unit, sc, sc->port0, sc->port1); 202 if (error) { 203 bus_release_resource(dev, SYS_RES_IOPORT, 0, sc->port0); 204 bus_release_resource(dev, SYS_RES_IOPORT, 1, sc->port1); 205 return error; 206 } 207 *(atkbdc_softc_t **)device_get_softc(dev) = sc; 208 209 /* 210 * Add all devices configured to be attached to atkbdc0. 211 */ 212 for (i = resource_query_string(-1, "at", device_get_nameunit(dev)); 213 i != -1; 214 i = resource_query_string(i, "at", device_get_nameunit(dev))) { 215 atkbdc_add_device(dev, resource_query_name(i), 216 resource_query_unit(i)); 217 } 218 219 /* 220 * and atkbdc? 221 */ 222 for (i = resource_query_string(-1, "at", device_get_name(dev)); 223 i != -1; 224 i = resource_query_string(i, "at", device_get_name(dev))) { 225 atkbdc_add_device(dev, resource_query_name(i), 226 resource_query_unit(i)); 227 } 228 229 bus_generic_attach(dev); 230 231 return 0; 232 } 233 234 static int 235 atkbdc_print_child(device_t bus, device_t dev) 236 { 237 atkbdc_device_t *kbdcdev; 238 int retval = 0; 239 240 kbdcdev = (atkbdc_device_t *)device_get_ivars(dev); 241 242 retval += bus_print_child_header(bus, dev); 243 if (kbdcdev->flags != 0) 244 retval += kprintf(" flags 0x%x", kbdcdev->flags); 245 if (kbdcdev->irq != -1) 246 retval += kprintf(" irq %d", kbdcdev->irq); 247 retval += bus_print_child_footer(bus, dev); 248 249 return (retval); 250 } 251 252 static int 253 atkbdc_read_ivar(device_t bus, device_t dev, int index, u_long *val) 254 { 255 atkbdc_device_t *ivar; 256 257 ivar = (atkbdc_device_t *)device_get_ivars(dev); 258 switch (index) { 259 case KBDC_IVAR_IRQ: 260 *val = (u_long)ivar->irq; 261 break; 262 case KBDC_IVAR_FLAGS: 263 *val = (u_long)ivar->flags; 264 break; 265 case KBDC_IVAR_VENDORID: 266 *val = (u_long)ivar->vendorid; 267 break; 268 case KBDC_IVAR_SERIAL: 269 *val = (u_long)ivar->serial; 270 break; 271 case KBDC_IVAR_LOGICALID: 272 *val = (u_long)ivar->logicalid; 273 break; 274 case KBDC_IVAR_COMPATID: 275 *val = (u_long)ivar->compatid; 276 break; 277 default: 278 return ENOENT; 279 } 280 return 0; 281 } 282 283 static int 284 atkbdc_write_ivar(device_t bus, device_t dev, int index, u_long val) 285 { 286 atkbdc_device_t *ivar; 287 288 ivar = (atkbdc_device_t *)device_get_ivars(dev); 289 switch (index) { 290 case KBDC_IVAR_IRQ: 291 ivar->irq = (int)val; 292 break; 293 case KBDC_IVAR_FLAGS: 294 ivar->flags = (int)val; 295 break; 296 case KBDC_IVAR_VENDORID: 297 ivar->vendorid = (u_int32_t)val; 298 break; 299 case KBDC_IVAR_SERIAL: 300 ivar->serial = (u_int32_t)val; 301 break; 302 case KBDC_IVAR_LOGICALID: 303 ivar->logicalid = (u_int32_t)val; 304 break; 305 case KBDC_IVAR_COMPATID: 306 ivar->compatid = (u_int32_t)val; 307 break; 308 default: 309 return ENOENT; 310 } 311 return 0; 312 } 313 314 DRIVER_MODULE(atkbdc, isa, atkbdc_driver, atkbdc_devclass, 0, 0); 315