1#!/bin/sh 2# This writes a skeleton driver and puts it into the kernel tree for you. 3# It also adds FOO and files.FOO configuration files so you can compile 4# a kernel with your FOO driver linked in. 5# To do so: 6# cd /sys/i386/conf; config FOO; cd ../../compile/FOO; make depend; make 7# 8# More interestingly, it creates a modules/foo directory 9# which it populates, to allow you to compile a FOO module 10# which can be lonked with your presently running kernel (if you feel brave). 11# To do so: 12# cd /sys/modules/foo; make depend; make; make install; kldload foo 13# 14# arg1 to this script is expected to be lowercase "foo" 15# 16# Trust me, RUN THIS SCRIPT :) 17# 18# $FreeBSD$" 19# 20# 21if [ "${1}X" = "X" ] 22then 23 echo "Hey , how about some help here.. give me a device name!" 24 exit 1 25fi 26UPPER=`echo ${1} |tr "[:lower:]" "[:upper:]"` 27 28HERE=`pwd` 29cd /sys 30TOP=`pwd` 31 32RCS_KEYWORD=FreeBSD 33 34if [ -d ${TOP}/modules/${1} ] 35then 36 echo "There appears to already be a module called ${1}" 37 echo -n "Should it be overwritten? [Y]" 38 read VAL 39 if [ "-z" "$VAL" ] 40 then 41 VAL=YES 42 fi 43 case ${VAL} in 44 [yY]*) 45 echo "Cleaning up from prior runs" 46 rm -rf ${TOP}/dev/${1} 47 rm -rf ${TOP}/modules/${1} 48 rm ${TOP}/i386/conf/files.${UPPER} 49 rm ${TOP}/i386/conf/${UPPER} 50 rm ${TOP}/sys/${1}io.h 51 ;; 52 *) 53 exit 1 54 ;; 55 esac 56fi 57 58echo "The following files will be created:" 59echo ${TOP}/modules/${1} 60echo ${TOP}/i386/conf/files.${UPPER} 61echo ${TOP}/i386/conf/${UPPER} 62echo ${TOP}/dev/${1} 63echo ${TOP}/dev/${1}/${1}.c 64echo ${TOP}/sys/${1}io.h 65echo ${TOP}/modules/${1} 66echo ${TOP}/modules/${1}/Makefile 67 68 69 mkdir ${TOP}/modules/${1} 70 71####################################################################### 72####################################################################### 73# 74# Create configuration information needed to create a kernel 75# containing this driver. 76# 77# Not really needed if we are going to do this as a module. 78####################################################################### 79# First add the file to a local file list. 80####################################################################### 81 82cat >${TOP}/i386/conf/files.${UPPER} <<DONE 83dev/${1}/${1}.c optional ${1} 84DONE 85 86####################################################################### 87# Then create a configuration file for a kernel that contains this driver. 88####################################################################### 89cat >${TOP}/i386/conf/${UPPER} <<DONE 90# Configuration file for kernel type: ${UPPER} 91ident ${UPPER} 92# \$${RCS_KEYWORD}: $ 93DONE 94 95grep -v GENERIC < /sys/i386/conf/GENERIC >>${TOP}/i386/conf/${UPPER} 96 97cat >>${TOP}/i386/conf/${UPPER} <<DONE 98options DDB # trust me, you'll need this 99device ${1} 100DONE 101 102if [ ! -d ${TOP}/dev/${1} ] 103then 104 mkdir -p ${TOP}/dev/${1} 105fi 106 107 108 109 110cat >${TOP}/dev/${1}/${1}.c <<DONE 111/* 112 * Copyright (c) [year] [your name] 113 * All rights reserved. 114 * 115 * Redistribution and use in source and binary forms, with or without 116 * modification, are permitted provided that the following conditions 117 * are met: 118 * 1. Redistributions of source code must retain the above copyright 119 * notice, this list of conditions and the following disclaimer. 120 * 2. Redistributions in binary form must reproduce the above copyright 121 * notice, this list of conditions and the following disclaimer in the 122 * documentation and/or other materials provided with the distribution. 123 * 124 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 125 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 126 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 127 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 128 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 129 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 130 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 131 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 132 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 133 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 134 * SUCH DAMAGE. 135 * 136 * 137 * ${1} driver 138 * \$${RCS_KEYWORD}: $ 139 */ 140 141/* 142 * http://www.daemonnews.org/200008/isa.html is required reading. 143 * hopefully it will make it's way into the handbook. 144 */ 145 146#include <sys/param.h> 147#include <sys/systm.h> 148#include <sys/conf.h> /* cdevsw stuff */ 149#include <sys/kernel.h> /* SYSINIT stuff */ 150#include <sys/uio.h> /* SYSINIT stuff */ 151#include <sys/malloc.h> /* malloc region definitions */ 152#include <sys/module.h> 153#include <sys/bus.h> 154#include <machine/bus.h> 155#include <machine/resource.h> 156#include <machine/bus_pio.h> 157#include <machine/bus_memio.h> 158#include <sys/rman.h> 159#include <sys/time.h> 160 161#include <pci/pcireg.h> 162#include <pci/pcivar.h> 163 164#include <isa/isavar.h> 165#include "isa_if.h" 166#include <sys/${1}io.h> /* ${1} IOCTL definitions */ 167 168/* XXX These should be defined in terms of bus-space ops */ 169#define ${UPPER}_INB(port) inb(port_start) 170#define ${UPPER}_OUTB(port, val) ( port_start, (val)) 171#define SOME_PORT 123 172#define EXPECTED_VALUE 0x42 173 174/* 175 * device specific Misc defines 176 */ 177#define BUFFERSIZE 1024 178#define NUMPORTS 4 179#define MEMSIZE (4 * 1024) /* imaginable h/w buffer size */ 180 181/* 182 * One of these per allocated device 183 */ 184struct ${1}_softc { 185 bus_space_tag_t bt; 186 bus_space_handle_t bh; 187 int rid_ioport; 188 int rid_memory; 189 int rid_irq; 190 int rid_drq; 191 struct resource* res_ioport; /* resource for port range */ 192 struct resource* res_memory; /* resource for mem range */ 193 struct resource* res_irq; /* resource for irq range */ 194 struct resource* res_drq; /* resource for dma channel */ 195 device_t device; 196 dev_t dev; 197 void *intr_cookie; 198 void *vaddr; /* Virtual address of mem resource */ 199 char buffer[BUFFERSIZE]; /* if we needed to buffer something */ 200} ; 201 202typedef struct ${1}_softc *sc_p; 203 204 205/* Function prototypes (these should all be static) */ 206static int ${1}_deallocate_resources(device_t device); 207static int ${1}_allocate_resources(device_t device); 208static int ${1}_attach(device_t device, sc_p scp); 209static int ${1}_detach(device_t device, sc_p scp); 210 211static d_open_t ${1}open; 212static d_close_t ${1}close; 213static d_read_t ${1}read; 214static d_write_t ${1}write; 215static d_ioctl_t ${1}ioctl; 216static d_mmap_t ${1}mmap; 217static d_poll_t ${1}poll; 218static void ${1}intr(void *arg); 219 220#define CDEV_MAJOR 20 221static struct cdevsw ${1}_cdevsw = { 222 /* open */ ${1}open, 223 /* close */ ${1}close, 224 /* read */ ${1}read, 225 /* write */ ${1}write, 226 /* ioctl */ ${1}ioctl, 227 /* poll */ ${1}poll, 228 /* mmap */ ${1}mmap, 229 /* strategy */ nostrategy, /* not a block type device */ 230 /* name */ "${1}", 231 /* maj */ CDEV_MAJOR, 232 /* dump */ nodump, /* not a block type device */ 233 /* psize */ nopsize, /* not a block type device */ 234 /* flags */ 0, 235 /* bmaj */ -1 236}; 237 238static devclass_t ${1}_devclass; 239 240/*****************************************\ 241* ISA Attachment structures and functions 242\*****************************************/ 243static void ${1}_isa_identify (driver_t *, device_t); 244static int ${1}_isa_probe (device_t); 245static int ${1}_isa_attach (device_t); 246static int ${1}_isa_detach (device_t); 247 248static struct isa_pnp_id ${1}_ids[] = { 249 {0x12345678, "ABCco Widget"}, 250 {0xfedcba98, "shining moon Widget ripoff"}, 251 {0, NULL} 252}; 253 254static device_method_t ${1}_methods[] = { 255 DEVMETHOD(device_identify, ${1}_isa_identify), 256 DEVMETHOD(device_probe, ${1}_isa_probe), 257 DEVMETHOD(device_attach, ${1}_isa_attach), 258 DEVMETHOD(device_detach, ${1}_isa_detach), 259 { 0, 0 } 260}; 261 262static driver_t ${1}_isa_driver = { 263 "${1}", 264 ${1}_methods, 265 sizeof (struct ${1}_softc) 266}; 267 268 269DRIVER_MODULE(${1}, isa, ${1}_isa_driver, ${1}_devclass, 0, 0); 270 271/* 272 * Here list some port addresses we might expect our widget to appear at: 273 */ 274static struct localhints { 275 int ioport; 276 int irq; 277 int drq; 278 int mem; 279} res[] = { 280 { 0x210, 11, 2, 0xcd000}, 281 { 0x310, 12, 3, 0xdd000}, 282 { 0x320, 9, 6, 0xd4000}, 283 {0,0,0,0} 284}; 285 286#define MAXHINTS 10 /* just an arbitrary safty limit */ 287/* 288 * Called once when the driver is somehow connected with the bus, 289 * (Either linked in and the bus is started, or loaded as a module). 290 * 291 * The aim of this routine in an ISA driver is to add child entries to 292 * the parent bus so that it looks as if the devices were detected by 293 * some pnp-like method, or at least mentionned in the hints. 294 * 295 * For NON-PNP "dumb" devices: 296 * Add entries into the bus's list of likely devices, so that 297 * our 'probe routine' will be called for them. 298 * This is similar to what the 'hints' code achieves, except this is 299 * loadable with the driver. 300 * In the 'dumb' case we end up with more children than needed but 301 * some (or all) of them will fail probe() and only waste a little memory. 302 * 303 * For NON-PNP "Smart" devices: 304 * If the device has a NON-PNP way of being detected and setting/sensing 305 * the card, then do that here and add a child for each set of 306 * hardware found. 307 * 308 * For PNP devices: 309 * If the device is always PNP capable then this function can be removed. 310 * 311 * If the device is mentionned in the 'hints' file then this 312 * function can be removed. All devices mentionned in the hints 313 * file get added as children for probing, whether or not the 314 * driver is linked in. So even as a module it MAY still be there. 315 * See isa/isahint.c for hints being added in. 316 */ 317static void 318${1}_isa_identify (driver_t *driver, device_t parent) 319{ 320 u_int32_t irq=0; 321 u_int32_t ioport; 322 device_t child; 323 int i; 324 325 326 /* 327 * If we've already got ${UPPER} attached somehow, don't try again. 328 * Maybe it was in the hints file. or it was loaded before. 329 */ 330 if (device_find_child(parent, "${1}", 0)) { 331 printf("${UPPER}: already attached\n"); 332 return; 333 } 334/* XXX look at dev/acpica/acpi_isa.c for use of ISA_ADD_CONFIG() macro */ 335/* XXX What is ISA_SET_CONFIG_CALLBACK(parent, child, pnpbios_set_config, 0) ?*/ 336 for (i = 0; i < MAXHINTS; i++) { 337 if (((ioport = res[i].ioport) == 0) 338 && ((irq = res[i].irq) == 0)) { 339 return; /* we've added all our local hints */ 340 } 341 342 child = BUS_ADD_CHILD(parent, ISA_ORDER_SPECULATIVE, "${1}", -1); 343 bus_set_resource(child, SYS_RES_IOPORT, 0, ioport, NUMPORTS); 344 bus_set_resource(child, SYS_RES_IRQ, 0, irq, 1); 345 bus_set_resource(child, SYS_RES_DRQ, 0, res[i].drq, 1); 346 bus_set_resource(child, SYS_RES_MEMORY, 0, res[i].mem, MEMSIZE); 347 348 349#if 0 350 /* 351 * If we wanted to pretend PNP found it 352 * we could do this, and put matching entries 353 * in the PNP table, but I think it's probably too hacky. 354 * As you see, some people have done it though. 355 * Basically EISA (remember that?) would do this I think 356 */ 357 isa_set_vendorid(child, PNP_EISAID("ESS1888")); 358 isa_set_logicalid(child, PNP_EISAID("ESS1888")); 359#endif 360 } 361#if 0 362 Do some smart probing (e.g. like the lnc driver) 363 and add a child for each one found. 364#endif 365 366 return; 367} 368/* 369 * The ISA code calls this for each device it knows about, 370 * whether via the PNP code or via the hints etc. 371 * If the device nas no PNP capabilities, remove all the 372 * PNP entries, but keep the call to ISA_PNP_PROBE() 373 * As it will guard against accidentally recognising 374 * foreign hardware. This is because we will be called to check against 375 * ALL PNP hardware. 376 */ 377static int 378${1}_isa_probe (device_t device) 379{ 380 int error; 381 device_t parent = device_get_parent(device); 382 sc_p scp = device_get_softc(device); 383 u_long port_start, port_count; 384 385 386 bzero(scp, sizeof(*scp)); 387 scp->device = device; 388 389 /* 390 * Check this device for a PNP match in our table.. 391 * There are several possible outcomes. 392 * error == 0 We match a PNP ). 393 * error == ENXIO, It is a PNP device but not in out table. 394 * error == ENOENT, I is not a PNP device.. try heuristic probes. 395 * -- logic from if_ed_isa.c, added info from isa/isa_if.m: 396 */ 397 error = ISA_PNP_PROBE(parent, device, ${1}_ids); 398 switch (error) { 399 case 0: 400 /* 401 * We found a PNP device. 402 * Do nothing, as it's all done in attach() 403 */ 404 break; 405 case ENOENT: 406 /* 407 * Well it didn't show up in the PNP tables 408 * so look directly at known ports (if we have any) 409 * in case we are looking for an old pre-PNP card. 410 * 411 * Hopefully the 'identify' routine will have picked these 412 * up for us first. 413 * 414 * The ports etc should come from a 'hints' section 415 * which is read in by code in isa/isahint.c 416 * and kern/subr_bus.c to create resource entries, 417 * or have been added by the 'identify routine above. 418 * 419 * First make a temporary resource reservation. 420 * If we can't get the resources we need then 421 * we need to abort. Possibly this indicates 422 * the resources were used by another device. 423 */ 424 if ((error = (${1}_allocate_resources(device)))) { 425 error = ENXIO; 426 goto errexit; 427 } 428 429 /* 430 * find out the values of any resources we 431 * need for our dumb probe. 432 */ 433 error = bus_get_resource(device, SYS_RES_IOPORT, 0, 434 &port_start, &port_count); 435 436 /* dummy heuristic type probe */ 437 if ( inb(port_start) != EXPECTED_VALUE) { 438 /* 439 * It isn't what we hoped, so quit looking for it. 440 */ 441 error = ENXIO; 442 } else { 443 u_long membase = bus_get_resource_start(device, 444 SYS_RES_MEMORY, 0 /*rid*/); 445 u_long memsize; 446 /* 447 * If we discover in some way that the device has 448 * XXX bytes of memory window, we can override 449 * or set the memory size in the child resource list. 450 */ 451 memsize = inb(port_start + 1) * 1024; /* for example */ 452 error = bus_set_resource(device, SYS_RES_MEMORY, 453 /*rid*/0, membase, memsize); 454 /* 455 * We found one.. 456 * Return -2 if we would LIKE the device 457 * Return -1 if we want it a lot 458 * Return 0 if we MUST get the device 459 * This allows drivers to 'bid' for a device. 460 */ 461 device_set_desc(device, "ACME Widget model 1234"); 462 error = 0; /* we really want it */ 463 } 464 /* 465 * Unreserve the resources for now because 466 * another driver may bid for device too. 467 * If we lose the bid, but still hold the resouces, we will 468 * effectively have diabled the other driver from getting them 469 * which will result in neither driver getting the device. 470 * We will ask for them again in attach if we win. 471 */ 472 ${1}_deallocate_resources(device); 473 break; 474 case ENXIO: 475 /* It was PNP but not ours, leave imediatly */ 476 default: 477 error = ENXIO; 478 } 479errexit: 480 return (error); 481} 482 483/* 484 * Called if the probe succeeded and our bid won the device. 485 * We can be destructive here as we know we have the device. 486 * This is the first place we can be sure we have a softc structure. 487 * You would do ISA specific attach things here, but generically there aren't 488 * any (yey new-bus!). 489 */ 490static int 491${1}_isa_attach (device_t device) 492{ 493 sc_p scp = device_get_softc(device); 494 int error; 495 496 error = ${1}_attach(device, scp); 497 if (error) { 498 ${1}_isa_detach(device); 499 } 500 return (error); 501 502} 503 504/* 505 * detach the driver (e.g. module unload) 506 * call the bus independent version 507 * and undo anything we did in the ISA attach routine. 508 */ 509static int 510${1}_isa_detach (device_t device) 511{ 512 sc_p scp = device_get_softc(device); 513 int error; 514 515 error = ${1}_detach(device, scp); 516 return (error); 517} 518 519/***************************************\ 520* PCI Attachment structures and code * 521\***************************************/ 522 523static int ${1}_pci_probe __P((device_t)); 524static int ${1}_pci_attach __P((device_t)); 525static int ${1}_pci_detach __P((device_t)); 526 527static device_method_t ${1}_pci_methods[] = { 528 /* Device interface */ 529 DEVMETHOD(device_probe, ${1}_pci_probe), 530 DEVMETHOD(device_attach, ${1}_pci_attach), 531 DEVMETHOD(device_detach, ${1}_pci_detach), 532 { 0, 0 } 533}; 534 535static driver_t ${1}_pci_driver = { 536 "${1}", 537 ${1}_pci_methods, 538 sizeof(struct ${1}_softc), 539}; 540 541 542DRIVER_MODULE(${1}, pci, ${1}_pci_driver, ${1}_devclass, 0, 0); 543 544static struct _pcsid 545{ 546 u_int32_t type; 547 const char *desc; 548} pci_ids[] = { 549 { 0x1234abcd, "ACME PCI Widgetplus" }, 550 { 0x1234fedc, "Happy moon brand RIPOFFplus" }, 551 { 0x00000000, NULL } 552}; 553 554static int 555${1}_pci_probe (device_t device) 556{ 557 u_int32_t type = pci_get_devid(device); 558 struct _pcsid *ep =pci_ids; 559 560 while (ep->type && ep->type != type) 561 ++ep; 562 if (ep->desc) { 563 device_set_desc(device, ep->desc); 564 return 0; 565 } else { 566 return ENXIO; 567 } 568} 569 570static int 571${1}_pci_attach(device_t device) 572{ 573 sc_p scp = device_get_softc(device); 574 int error; 575 576 error = ${1}_attach(device, scp); 577 if (error) { 578 ${1}_pci_detach(device); 579 } 580 return (error); 581} 582 583static int 584${1}_pci_detach (device_t device) 585{ 586 sc_p scp = device_get_softc(device); 587 int error; 588 589 error = ${1}_detach(device, scp); 590 return (error); 591} 592 593 594/****************************************\ 595* Common Attachment subfunctions * 596\****************************************/ 597static int 598${1}_attach(device_t device, sc_p scp) 599{ 600 int unit = device_get_unit(device); 601 device_t parent = device_get_parent(device); 602 603 scp->dev = make_dev(&${1}_cdevsw, 0, 604 UID_ROOT, GID_OPERATOR, 0600, "${1}%d", unit); 605 scp->dev->si_drv1 = scp; 606 607 if (${1}_allocate_resources(device)) { 608 goto errexit; 609 } 610 611 scp->bt = rman_get_bustag(scp->res_ioport); 612 scp->bh = rman_get_bushandle(scp->res_ioport); 613 614 /* register the interrupt handler */ 615 /* 616 * The type should be one of: 617 * INTR_TYPE_TTY 618 * (INTR_TYPE_TTY | INTR_TYPE_FAST) 619 * INTR_TYPE_BIO 620 * INTR_TYPE_CAM 621 * INTR_TYPE_NET 622 * INTR_TYPE_MISC 623 * This will probably change with SMPng. 624 */ 625 if (scp->res_irq) { 626 /* default to the tty mask for registration */ /* XXX */ 627 if (BUS_SETUP_INTR(parent, device, scp->res_irq, INTR_TYPE_TTY, 628 ${1}intr, scp, &scp->intr_cookie) == 0) { 629 /* do something if successfull */ 630 } else { 631 goto errexit; 632 } 633 } 634 635 /* 636 * If we want to access the memory we will need 637 * to know where it was mapped. 638 */ 639 scp->vaddr = rman_get_virtual(scp->res_memory); 640 return 0; 641 642errexit: 643 /* 644 * Undo anything we may have done 645 */ 646 ${1}_detach(device, scp); 647 return (ENXIO); 648} 649 650static int 651${1}_detach(device_t device, sc_p scp) 652{ 653 device_t parent = device_get_parent(device); 654 655 /* 656 * At this point stick a strong piece of wood into the device 657 * to make sure it is stopped safely. The alternative is to 658 * simply REFUSE to detach if it's busy. What you do depends on 659 * your specific situation. 660 */ 661 /* ZAP some register */ 662 663 /* 664 * Take our interrupt handler out of the list of handlers 665 * that can handle this irq. 666 */ 667 if (scp->intr_cookie != NULL) { 668 if (BUS_TEARDOWN_INTR(parent, device, 669 scp->res_irq, scp->intr_cookie) != 0) { 670 printf("intr teardown failed.. continuing\n"); 671 } 672 scp->intr_cookie = NULL; 673 } 674 675 /* 676 * deallocate any system resources we may have 677 * allocated on behalf of this driver. 678 */ 679 scp->vaddr = NULL; 680 return ${1}_deallocate_resources(device); 681} 682 683static int 684${1}_allocate_resources(device_t device) 685{ 686 int error; 687 sc_p scp = device_get_softc(device); 688 int size = 16; /* SIZE of port range used */ 689 690 scp->res_ioport = bus_alloc_resource(device, SYS_RES_IOPORT, 691 &scp->rid_ioport, 0ul, ~0ul, size, RF_ACTIVE); 692 if (scp->res_ioport == NULL) { 693 goto errexit; 694 } 695 696 scp->res_irq = bus_alloc_resource(device, SYS_RES_IRQ, 697 &scp->rid_irq, 0ul, ~0ul, 1, RF_SHAREABLE|RF_ACTIVE); 698 if (scp->res_irq == NULL) { 699 goto errexit; 700 } 701 702 scp->res_drq = bus_alloc_resource(device, SYS_RES_DRQ, 703 &scp->rid_drq, 0ul, ~0ul, 1, RF_ACTIVE); 704 if (scp->res_drq == NULL) { 705 goto errexit; 706 } 707 708 scp->res_memory = bus_alloc_resource(device, SYS_RES_MEMORY, 709 &scp->rid_memory, 0ul, ~0ul, MSIZE, RF_ACTIVE); 710 if (scp->res_memory == NULL) { 711 goto errexit; 712 } 713 return (0); 714 715errexit: 716 error = ENXIO; 717 /* cleanup anything we may have assigned. */ 718 ${1}_deallocate_resources(device); 719 return (ENXIO); /* for want of a better idea */ 720} 721 722static int 723${1}_deallocate_resources(device_t device) 724{ 725 sc_p scp = device_get_softc(device); 726 727 if (scp->res_irq != 0) { 728 bus_deactivate_resource(device, SYS_RES_IRQ, 729 scp->rid_irq, scp->res_irq); 730 bus_release_resource(device, SYS_RES_IRQ, 731 scp->rid_irq, scp->res_irq); 732 scp->res_irq = 0; 733 } 734 if (scp->res_ioport != 0) { 735 bus_deactivate_resource(device, SYS_RES_IOPORT, 736 scp->rid_ioport, scp->res_ioport); 737 bus_release_resource(device, SYS_RES_IOPORT, 738 scp->rid_ioport, scp->res_ioport); 739 scp->res_ioport = 0; 740 } 741 if (scp->res_ioport != 0) { 742 bus_deactivate_resource(device, SYS_RES_MEMORY, 743 scp->rid_memory, scp->res_memory); 744 bus_release_resource(device, SYS_RES_MEMORY, 745 scp->rid_memory, scp->res_memory); 746 scp->res_ioport = 0; 747 } 748 if (scp->res_drq != 0) { 749 bus_deactivate_resource(device, SYS_RES_DRQ, 750 scp->rid_drq, scp->res_drq); 751 bus_release_resource(device, SYS_RES_DRQ, 752 scp->rid_drq, scp->res_drq); 753 scp->res_drq = 0; 754 } 755 if (scp->dev) { 756 destroy_dev(scp->dev); 757 } 758 return (0); 759} 760 761static void 762${1}intr(void *arg) 763{ 764 sc_p scp = arg; 765 766 /* 767 * well we got an interupt, now what? 768 */ 769 return; 770} 771 772static int 773${1}ioctl (dev_t dev, u_long cmd, caddr_t data, int flag, struct proc *p) 774{ 775 sc_p scp = dev->si_drv1; 776 777 switch (cmd) { 778 case DHIOCRESET: 779 /* whatever resets it */ 780#if 0 781 ${UPPER}_OUTB(SOME_PORT, 0xff) ; 782#endif 783 break; 784 default: 785 return ENXIO; 786 } 787 return (0); 788} 789/* 790 * You also need read, write, open, close routines. 791 * This should get you started 792 */ 793static int 794${1}open(dev_t dev, int oflags, int devtype, struct proc *p) 795{ 796 sc_p scp = dev->si_drv1; 797 798 /* 799 * Do processing 800 */ 801 return (0); 802} 803 804static int 805${1}close(dev_t dev, int fflag, int devtype, struct proc *p) 806{ 807 sc_p scp = dev->si_drv1; 808 809 /* 810 * Do processing 811 */ 812 return (0); 813} 814 815static int 816${1}read(dev_t dev, struct uio *uio, int ioflag) 817{ 818 sc_p scp = dev->si_drv1; 819 int toread; 820 821 822 /* 823 * Do processing 824 * read from buffer 825 */ 826 toread = (min(uio->uio_resid, sizeof(scp->buffer))); 827 return(uiomove(scp->buffer, toread, uio)); 828} 829 830static int 831${1}write(dev_t dev, struct uio *uio, int ioflag) 832{ 833 sc_p scp = dev->si_drv1; 834 int towrite; 835 836 /* 837 * Do processing 838 * write to buffer 839 */ 840 towrite = (min(uio->uio_resid, sizeof(scp->buffer))); 841 return(uiomove(scp->buffer, towrite, uio)); 842} 843 844static int 845${1}mmap(dev_t dev, vm_offset_t offset, int nprot) 846{ 847 sc_p scp = dev->si_drv1; 848 849 /* 850 * Given a byte offset into your device, return the PHYSICAL 851 * page number that it would map to. 852 */ 853#if 0 /* if we had a frame buffer or whatever.. do this */ 854 if (offset > FRAMEBUFFERSIZE - PAGE_SIZE) { 855 return (-1); 856 } 857 return i386_btop((FRAMEBASE + offset)); 858#else 859 return (-1); 860#endif 861} 862 863static int 864${1}poll(dev_t dev, int which, struct proc *p) 865{ 866 sc_p scp = dev->si_drv1; 867 868 /* 869 * Do processing 870 */ 871 return (0); /* this is the wrong value I'm sure */ 872} 873 874DONE 875 876cat >${TOP}/sys/${1}io.h <<DONE 877/* 878 * Definitions needed to access the ${1} device (ioctls etc) 879 * see mtio.h , ioctl.h as examples 880 */ 881#ifndef SYS_DHIO_H 882#define SYS_DHIO_H 883 884#ifndef KERNEL 885#include <sys/types.h> 886#endif 887#include <sys/ioccom.h> 888 889/* 890 * define an ioctl here 891 */ 892#define DHIOCRESET _IO('D', 0) /* reset the ${1} device */ 893#endif 894DONE 895 896if [ ! -d ${TOP}/modules/${1} ] 897then 898 mkdir -p ${TOP}/modules/${1} 899fi 900 901cat >${TOP}/modules/${1}/Makefile <<DONE 902# ${UPPER} Loadable Kernel Module 903# 904# \$${RCS_KEYWORD}: $ 905 906.PATH: \${.CURDIR}/../../dev/${1} 907KMOD = ${1} 908SRCS = ${1}.c 909SRCS += opt_inet.h device_if.h bus_if.h pci_if.h isa_if.h 910 911# you may need to do this is your device is an if_xxx driver 912opt_inet.h: 913 echo "#define INET 1" > opt_inet.h 914 915.include <bsd.kmod.mk> 916DONE 917 918(cd ${TOP}/modules/${1}; make depend; make ) 919exit 920 921config ${UPPER} 922cd ../../compile/${UPPER} 923make depend 924make ${1}.o 925make 926exit 927 928#--------------end of script--------------- 929# 930#edit to your taste.. 931# 932# 933 934 935 936 937