bktr_os.c revision 65728
1/* $FreeBSD: head/sys/dev/bktr/bktr_os.c 65728 2000-09-11 07:14:43Z roger $ */ 2 3/* 4 * This is part of the Driver for Video Capture Cards (Frame grabbers) 5 * and TV Tuner cards using the Brooktree Bt848, Bt848A, Bt849A, Bt878, Bt879 6 * chipset. 7 * Copyright Roger Hardiman and Amancio Hasty. 8 * 9 * bktr_os : This has all the Operating System dependant code, 10 * probe/attach and open/close/ioctl/read/mmap 11 * memory allocation 12 * PCI bus interfacing 13 * 14 * 15 */ 16 17/* 18 * 1. Redistributions of source code must retain the 19 * Copyright (c) 1997 Amancio Hasty, 1999 Roger Hardiman 20 * All rights reserved. 21 * 22 * Redistribution and use in source and binary forms, with or without 23 * modification, are permitted provided that the following conditions 24 * are met: 25 * 1. Redistributions of source code must retain the above copyright 26 * notice, this list of conditions and the following disclaimer. 27 * 2. Redistributions in binary form must reproduce the above copyright 28 * notice, this list of conditions and the following disclaimer in the 29 * documentation and/or other materials provided with the distribution. 30 * 3. All advertising materials mentioning features or use of this software 31 * must display the following acknowledgement: 32 * This product includes software developed by Amancio Hasty and 33 * Roger Hardiman 34 * 4. The name of the author may not be used to endorse or promote products 35 * derived from this software without specific prior written permission. 36 * 37 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 38 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 39 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 40 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 41 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 42 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 43 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 44 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 45 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 46 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 47 * POSSIBILITY OF SUCH DAMAGE. 48 */ 49 50 51#ifdef __FreeBSD__ 52#include "bktr.h" 53#endif /* __FreeBSD__ */ 54 55#include "opt_bktr.h" /* include any kernel config options */ 56 57#define FIFO_RISC_DISABLED 0 58#define ALL_INTS_DISABLED 0 59 60 61/*******************/ 62/* *** FreeBSD *** */ 63/*******************/ 64#ifdef __FreeBSD__ 65 66#include <sys/param.h> 67#include <sys/systm.h> 68#include <sys/conf.h> 69#include <sys/uio.h> 70#include <sys/kernel.h> 71#include <sys/signalvar.h> 72#include <sys/mman.h> 73#include <sys/poll.h> 74#include <sys/select.h> 75#include <sys/vnode.h> 76 77#include <vm/vm.h> 78#include <vm/vm_kern.h> 79#include <vm/pmap.h> 80#include <vm/vm_extern.h> 81 82#if (__FreeBSD_version >=400000) || (NSMBUS > 0) 83#include <sys/bus.h> /* used by smbus and newbus */ 84#endif 85 86#if (__FreeBSD_version >=300000) 87#include <machine/bus_memio.h> /* used by bus space */ 88#include <machine/bus.h> /* used by bus space and newbus */ 89#include <sys/bus.h> 90#endif 91 92#if (__FreeBSD_version >=400000) 93#include <sys/rman.h> /* used by newbus */ 94#include <machine/resource.h> /* used by newbus */ 95#endif 96 97 98#include <machine/clock.h> /* for DELAY */ 99#include <pci/pcivar.h> 100#include <pci/pcireg.h> 101 102#include <sys/sysctl.h> 103int bt848_card = -1; 104int bt848_tuner = -1; 105int bt848_reverse_mute = -1; 106int bt848_format = -1; 107int bt848_slow_msp_audio = -1; 108 109SYSCTL_NODE(_hw, OID_AUTO, bt848, CTLFLAG_RW, 0, "Bt848 Driver mgmt"); 110SYSCTL_INT(_hw_bt848, OID_AUTO, card, CTLFLAG_RW, &bt848_card, -1, ""); 111SYSCTL_INT(_hw_bt848, OID_AUTO, tuner, CTLFLAG_RW, &bt848_tuner, -1, ""); 112SYSCTL_INT(_hw_bt848, OID_AUTO, reverse_mute, CTLFLAG_RW, &bt848_reverse_mute, -1, ""); 113SYSCTL_INT(_hw_bt848, OID_AUTO, format, CTLFLAG_RW, &bt848_format, -1, ""); 114SYSCTL_INT(_hw_bt848, OID_AUTO, slow_msp_audio, CTLFLAG_RW, &bt848_slow_msp_audio, -1, ""); 115 116#if (__FreeBSD__ == 2) 117#define PCIR_REVID PCI_CLASS_REG 118#endif 119 120#endif /* end freebsd section */ 121 122 123 124/****************/ 125/* *** BSDI *** */ 126/****************/ 127#ifdef __bsdi__ 128#endif /* __bsdi__ */ 129 130 131/**************************/ 132/* *** OpenBSD/NetBSD *** */ 133/**************************/ 134#if defined(__NetBSD__) || defined(__OpenBSD__) 135 136#include <sys/param.h> 137#include <sys/systm.h> 138#include <sys/conf.h> 139#include <sys/uio.h> 140#include <sys/kernel.h> 141#include <sys/signalvar.h> 142#include <sys/mman.h> 143#include <sys/poll.h> 144#include <sys/select.h> 145#include <sys/vnode.h> 146 147#include <vm/vm.h> 148 149#ifndef __NetBSD__ 150#include <vm/vm_kern.h> 151#include <vm/pmap.h> 152#include <vm/vm_extern.h> 153#endif 154 155#include <sys/device.h> 156#include <dev/pci/pcivar.h> 157#include <dev/pci/pcireg.h> 158#include <dev/pci/pcidevs.h> 159 160#define BKTR_DEBUG 161#ifdef BKTR_DEBUG 162int bktr_debug = 0; 163#define DPR(x) (bktr_debug ? printf x : 0) 164#else 165#define DPR(x) 166#endif 167#endif /* __NetBSD__ || __OpenBSD__ */ 168 169 170#ifdef __NetBSD__ 171#include <dev/ic/bt8xx.h> /* NetBSD location for .h files */ 172#include <dev/pci/bktr/bktr_reg.h> 173#include <dev/pci/bktr/bktr_tuner.h> 174#include <dev/pci/bktr/bktr_card.h> 175#include <dev/pci/bktr/bktr_audio.h> 176#include <dev/pci/bktr/bktr_core.h> 177#include <dev/pci/bktr/bktr_os.h> 178#else /* Traditional location for .h files */ 179#include <machine/ioctl_meteor.h> 180#include <machine/ioctl_bt848.h> /* extensions to ioctl_meteor.h */ 181#include <dev/bktr/bktr_reg.h> 182#include <dev/bktr/bktr_tuner.h> 183#include <dev/bktr/bktr_card.h> 184#include <dev/bktr/bktr_audio.h> 185#include <dev/bktr/bktr_core.h> 186#include <dev/bktr/bktr_os.h> 187#if defined(BKTR_USE_FREEBSD_SMBUS) 188#include <dev/bktr/bktr_i2c.h> 189#endif 190#endif 191 192 193 194/****************************/ 195/* *** FreeBSD 4.x code *** */ 196/****************************/ 197#if (__FreeBSD_version >= 400000) 198 199static int bktr_probe( device_t dev ); 200static int bktr_attach( device_t dev ); 201static int bktr_detach( device_t dev ); 202static int bktr_shutdown( device_t dev ); 203static void bktr_intr(void *arg) { common_bktr_intr(arg); } 204 205static device_method_t bktr_methods[] = { 206 /* Device interface */ 207 DEVMETHOD(device_probe, bktr_probe), 208 DEVMETHOD(device_attach, bktr_attach), 209 DEVMETHOD(device_detach, bktr_detach), 210 DEVMETHOD(device_shutdown, bktr_shutdown), 211 212 { 0, 0 } 213}; 214 215static driver_t bktr_driver = { 216 "bktr", 217 bktr_methods, 218 sizeof(struct bktr_softc), 219}; 220 221static devclass_t bktr_devclass; 222 223static d_open_t bktr_open; 224static d_close_t bktr_close; 225static d_read_t bktr_read; 226static d_write_t bktr_write; 227static d_ioctl_t bktr_ioctl; 228static d_mmap_t bktr_mmap; 229static d_poll_t bktr_poll; 230 231#define CDEV_MAJOR 92 232static struct cdevsw bktr_cdevsw = { 233 /* open */ bktr_open, 234 /* close */ bktr_close, 235 /* read */ bktr_read, 236 /* write */ bktr_write, 237 /* ioctl */ bktr_ioctl, 238 /* poll */ bktr_poll, 239 /* mmap */ bktr_mmap, 240 /* strategy */ nostrategy, 241 /* name */ "bktr", 242 /* maj */ CDEV_MAJOR, 243 /* dump */ nodump, 244 /* psize */ nopsize, 245 /* flags */ 0, 246 /* bmaj */ -1 247}; 248 249DRIVER_MODULE(bktr, pci, bktr_driver, bktr_devclass, 0, 0); 250MODULE_DEPEND(bktr, bktr_mem, 1,1,1); 251MODULE_VERSION(bktr, 1); 252 253 254/* 255 * the boot time probe routine. 256 */ 257static int 258bktr_probe( device_t dev ) 259{ 260 unsigned int type = pci_get_devid(dev); 261 unsigned int rev = pci_get_revid(dev); 262 263 switch (type) { 264 case BROOKTREE_848_PCI_ID: 265 if (rev == 0x12) device_set_desc(dev, "BrookTree 848A"); 266 else device_set_desc(dev, "BrookTree 848"); 267 return 0; 268 case BROOKTREE_849_PCI_ID: 269 device_set_desc(dev, "BrookTree 849A"); 270 return 0; 271 case BROOKTREE_878_PCI_ID: 272 device_set_desc(dev, "BrookTree 878"); 273 return 0; 274 case BROOKTREE_879_PCI_ID: 275 device_set_desc(dev, "BrookTree 879"); 276 return 0; 277 }; 278 279 return ENXIO; 280} 281 282 283/* 284 * the attach routine. 285 */ 286static int 287bktr_attach( device_t dev ) 288{ 289 u_long latency; 290 u_long fun; 291 u_long val; 292 unsigned int rev; 293 unsigned int unit; 294 int error = 0; 295#ifdef BROOKTREE_IRQ 296 u_long old_irq, new_irq; 297#endif 298 299 struct bktr_softc *bktr = device_get_softc(dev); 300 301 unit = device_get_unit(dev); 302 303 /* build the device name for bktr_name() */ 304 snprintf(bktr->bktr_xname, sizeof(bktr->bktr_xname), "bktr%d",unit); 305 306 /* 307 * Enable bus mastering and Memory Mapped device 308 */ 309 val = pci_read_config(dev, PCIR_COMMAND, 4); 310 val |= (PCIM_CMD_MEMEN|PCIM_CMD_BUSMASTEREN); 311 pci_write_config(dev, PCIR_COMMAND, val, 4); 312 313 /* 314 * Map control/status registers. 315 */ 316 bktr->mem_rid = PCIR_MAPS; 317 bktr->res_mem = bus_alloc_resource(dev, SYS_RES_MEMORY, &bktr->mem_rid, 318 0, ~0, 1, RF_ACTIVE); 319 320 321 if (!bktr->res_mem) { 322 device_printf(dev, "could not map memory\n"); 323 error = ENXIO; 324 goto fail; 325 } 326 bktr->memt = rman_get_bustag(bktr->res_mem); 327 bktr->memh = rman_get_bushandle(bktr->res_mem); 328 329 330 /* 331 * Disable the brooktree device 332 */ 333 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED); 334 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED); 335 336 337#ifdef BROOKTREE_IRQ /* from the configuration file */ 338 old_irq = pci_conf_read(tag, PCI_INTERRUPT_REG); 339 pci_conf_write(tag, PCI_INTERRUPT_REG, BROOKTREE_IRQ); 340 new_irq = pci_conf_read(tag, PCI_INTERRUPT_REG); 341 printf("bktr%d: attach: irq changed from %d to %d\n", 342 unit, (old_irq & 0xff), (new_irq & 0xff)); 343#endif 344 345 /* 346 * Allocate our interrupt. 347 */ 348 bktr->irq_rid = 0; 349 bktr->res_irq = bus_alloc_resource(dev, SYS_RES_IRQ, &bktr->irq_rid, 350 0, ~0, 1, RF_SHAREABLE | RF_ACTIVE); 351 if (bktr->res_irq == NULL) { 352 device_printf(dev, "could not map interrupt\n"); 353 error = ENXIO; 354 goto fail; 355 } 356 357 error = bus_setup_intr(dev, bktr->res_irq, INTR_TYPE_TTY, 358 bktr_intr, bktr, &bktr->res_ih); 359 if (error) { 360 device_printf(dev, "could not setup irq\n"); 361 goto fail; 362 363 } 364 365 366 /* Update the Device Control Register */ 367 /* on Bt878 and Bt879 cards */ 368 fun = pci_read_config( dev, 0x40, 2); 369 fun = fun | 1; /* Enable writes to the sub-system vendor ID */ 370 371#if defined( BKTR_430_FX_MODE ) 372 if (bootverbose) printf("Using 430 FX chipset compatibilty mode\n"); 373 fun = fun | 2; /* Enable Intel 430 FX compatibility mode */ 374#endif 375 376#if defined( BKTR_SIS_VIA_MODE ) 377 if (bootverbose) printf("Using SiS/VIA chipset compatibilty mode\n"); 378 fun = fun | 4; /* Enable SiS/VIA compatibility mode (usefull for 379 OPTi chipset motherboards too */ 380#endif 381 pci_write_config(dev, 0x40, fun, 2); 382 383 384 /* XXX call bt848_i2c dependent attach() routine */ 385#if defined(BKTR_USE_FREEBSD_SMBUS) 386 if (bt848_i2c_attach(unit, bktr, &bktr->i2c_sc)) 387 printf("bktr%d: i2c_attach: can't attach\n", unit); 388#endif 389 390 391/* 392 * PCI latency timer. 32 is a good value for 4 bus mastering slots, if 393 * you have more than four, then 16 would probably be a better value. 394 */ 395#ifndef BROOKTREE_DEF_LATENCY_VALUE 396#define BROOKTREE_DEF_LATENCY_VALUE 10 397#endif 398 latency = pci_read_config(dev, PCI_LATENCY_TIMER, 4); 399 latency = (latency >> 8) & 0xff; 400 if ( bootverbose ) { 401 if (latency) 402 printf("brooktree%d: PCI bus latency is", unit); 403 else 404 printf("brooktree%d: PCI bus latency was 0 changing to", 405 unit); 406 } 407 if ( !latency ) { 408 latency = BROOKTREE_DEF_LATENCY_VALUE; 409 pci_write_config(dev, PCI_LATENCY_TIMER, latency<<8, 4); 410 } 411 if ( bootverbose ) { 412 printf(" %d.\n", (int) latency); 413 } 414 415 /* read the pci device id and revision id */ 416 fun = pci_get_devid(dev); 417 rev = pci_get_revid(dev); 418 419 /* call the common attach code */ 420 common_bktr_attach( bktr, unit, fun, rev ); 421 422 make_dev(&bktr_cdevsw, unit, 0, 0, 0444, "bktr%d", unit); 423 make_dev(&bktr_cdevsw, unit+16, 0, 0, 0444, "tuner%d", unit); 424 make_dev(&bktr_cdevsw, unit+32, 0, 0, 0444, "vbi%d", unit); 425 426 return 0; 427 428fail: 429 if (bktr->res_irq) 430 bus_release_resource(dev, SYS_RES_IRQ, bktr->irq_rid, bktr->res_irq); 431 if (bktr->res_mem) 432 bus_release_resource(dev, SYS_RES_IRQ, bktr->mem_rid, bktr->res_mem); 433 return error; 434 435} 436 437/* 438 * the detach routine. 439 */ 440static int 441bktr_detach( device_t dev ) 442{ 443 struct bktr_softc *bktr = device_get_softc(dev); 444 445 /* Disable the brooktree device */ 446 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED); 447 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED); 448 449 /* FIXME - Free memory for RISC programs, grab buffer, vbi buffers */ 450 451 /* 452 * Deallocate resources. 453 */ 454 bus_teardown_intr(dev, bktr->res_irq, bktr->res_ih); 455 bus_release_resource(dev, SYS_RES_IRQ, bktr->irq_rid, bktr->res_irq); 456 bus_release_resource(dev, SYS_RES_MEMORY, bktr->mem_rid, bktr->res_mem); 457 458 return 0; 459} 460 461/* 462 * the shutdown routine. 463 */ 464static int 465bktr_shutdown( device_t dev ) 466{ 467 struct bktr_softc *bktr = device_get_softc(dev); 468 469 /* Disable the brooktree device */ 470 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED); 471 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED); 472 473 return 0; 474} 475 476 477/* 478 * Special Memory Allocation 479 */ 480vm_offset_t 481get_bktr_mem( int unit, unsigned size ) 482{ 483 vm_offset_t addr = 0; 484 485 addr = vm_page_alloc_contig(size, 0, 0xffffffff, 1<<24); 486 if (addr == 0) 487 addr = vm_page_alloc_contig(size, 0, 0xffffffff, PAGE_SIZE); 488 if (addr == 0) { 489 printf("bktr%d: Unable to allocate %d bytes of memory.\n", 490 unit, size); 491 } 492 493 return( addr ); 494} 495 496 497/*--------------------------------------------------------- 498** 499** BrookTree 848 character device driver routines 500** 501**--------------------------------------------------------- 502*/ 503 504#define VIDEO_DEV 0x00 505#define TUNER_DEV 0x01 506#define VBI_DEV 0x02 507 508#define UNIT(x) ((x) & 0x0f) 509#define FUNCTION(x) (x >> 4) 510 511/* 512 * 513 */ 514int 515bktr_open( dev_t dev, int flags, int fmt, struct proc *p ) 516{ 517 bktr_ptr_t bktr; 518 int unit; 519 int result; 520 521 unit = UNIT( minor(dev) ); 522 523 /* Get the device data */ 524 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 525 if (bktr == NULL) { 526 /* the device is no longer valid/functioning */ 527 return (ENXIO); 528 } 529 530 if (!(bktr->flags & METEOR_INITALIZED)) /* device not found */ 531 return( ENXIO ); 532 533 /* Record that the device is now busy */ 534 device_busy(devclass_get_device(bktr_devclass, unit)); 535 536 537 if (bt848_card != -1) { 538 if ((bt848_card >> 8 == unit ) && 539 ( (bt848_card & 0xff) < Bt848_MAX_CARD )) { 540 if ( bktr->bt848_card != (bt848_card & 0xff) ) { 541 bktr->bt848_card = (bt848_card & 0xff); 542 probeCard(bktr, FALSE, unit); 543 } 544 } 545 } 546 547 if (bt848_tuner != -1) { 548 if ((bt848_tuner >> 8 == unit ) && 549 ( (bt848_tuner & 0xff) < Bt848_MAX_TUNER )) { 550 if ( bktr->bt848_tuner != (bt848_tuner & 0xff) ) { 551 bktr->bt848_tuner = (bt848_tuner & 0xff); 552 probeCard(bktr, FALSE, unit); 553 } 554 } 555 } 556 557 if (bt848_reverse_mute != -1) { 558 if ((bt848_reverse_mute >> 8) == unit ) { 559 bktr->reverse_mute = bt848_reverse_mute & 0xff; 560 } 561 } 562 563 if (bt848_slow_msp_audio != -1) { 564 if ((bt848_slow_msp_audio >> 8) == unit ) { 565 bktr->slow_msp_audio = (bt848_slow_msp_audio & 0xff); 566 } 567 } 568 569 switch ( FUNCTION( minor(dev) ) ) { 570 case VIDEO_DEV: 571 result = video_open( bktr ); 572 break; 573 case TUNER_DEV: 574 result = tuner_open( bktr ); 575 break; 576 case VBI_DEV: 577 result = vbi_open( bktr ); 578 break; 579 default: 580 result = ENXIO; 581 break; 582 } 583 584 /* If there was an error opening the device, undo the busy status */ 585 if (result != 0) 586 device_unbusy(devclass_get_device(bktr_devclass, unit)); 587 return( result ); 588} 589 590 591/* 592 * 593 */ 594int 595bktr_close( dev_t dev, int flags, int fmt, struct proc *p ) 596{ 597 bktr_ptr_t bktr; 598 int unit; 599 int result; 600 601 unit = UNIT( minor(dev) ); 602 603 /* Get the device data */ 604 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 605 if (bktr == NULL) { 606 /* the device is no longer valid/functioning */ 607 return (ENXIO); 608 } 609 610 switch ( FUNCTION( minor(dev) ) ) { 611 case VIDEO_DEV: 612 result = video_close( bktr ); 613 break; 614 case TUNER_DEV: 615 result = tuner_close( bktr ); 616 break; 617 case VBI_DEV: 618 result = vbi_close( bktr ); 619 break; 620 default: 621 return (ENXIO); 622 break; 623 } 624 625 device_unbusy(devclass_get_device(bktr_devclass, unit)); 626 return( result ); 627} 628 629 630/* 631 * 632 */ 633int 634bktr_read( dev_t dev, struct uio *uio, int ioflag ) 635{ 636 bktr_ptr_t bktr; 637 int unit; 638 639 unit = UNIT(minor(dev)); 640 641 /* Get the device data */ 642 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 643 if (bktr == NULL) { 644 /* the device is no longer valid/functioning */ 645 return (ENXIO); 646 } 647 648 switch ( FUNCTION( minor(dev) ) ) { 649 case VIDEO_DEV: 650 return( video_read( bktr, unit, dev, uio ) ); 651 case VBI_DEV: 652 return( vbi_read( bktr, uio, ioflag ) ); 653 } 654 return( ENXIO ); 655} 656 657 658/* 659 * 660 */ 661int 662bktr_write( dev_t dev, struct uio *uio, int ioflag ) 663{ 664 return( EINVAL ); /* XXX or ENXIO ? */ 665} 666 667 668/* 669 * 670 */ 671int 672bktr_ioctl( dev_t dev, ioctl_cmd_t cmd, caddr_t arg, int flag, struct proc* pr ) 673{ 674 bktr_ptr_t bktr; 675 int unit; 676 677 unit = UNIT(minor(dev)); 678 679 /* Get the device data */ 680 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 681 if (bktr == NULL) { 682 /* the device is no longer valid/functioning */ 683 return (ENXIO); 684 } 685 686 if (bktr->bigbuf == 0) /* no frame buffer allocated (ioctl failed) */ 687 return( ENOMEM ); 688 689 switch ( FUNCTION( minor(dev) ) ) { 690 case VIDEO_DEV: 691 return( video_ioctl( bktr, unit, cmd, arg, pr ) ); 692 case TUNER_DEV: 693 return( tuner_ioctl( bktr, unit, cmd, arg, pr ) ); 694 } 695 696 return( ENXIO ); 697} 698 699 700/* 701 * 702 */ 703int 704bktr_mmap( dev_t dev, vm_offset_t offset, int nprot ) 705{ 706 int unit; 707 bktr_ptr_t bktr; 708 709 unit = UNIT(minor(dev)); 710 711 if (FUNCTION(minor(dev)) > 0) /* only allow mmap on /dev/bktr[n] */ 712 return( -1 ); 713 714 /* Get the device data */ 715 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 716 if (bktr == NULL) { 717 /* the device is no longer valid/functioning */ 718 return (ENXIO); 719 } 720 721 if (nprot & PROT_EXEC) 722 return( -1 ); 723 724 if (offset < 0) 725 return( -1 ); 726 727 if (offset >= bktr->alloc_pages * PAGE_SIZE) 728 return( -1 ); 729 730 return( atop(vtophys(bktr->bigbuf) + offset) ); 731} 732 733int bktr_poll( dev_t dev, int events, struct proc *p) 734{ 735 int unit; 736 bktr_ptr_t bktr; 737 int revents = 0; 738 DECLARE_INTR_MASK(s); 739 740 unit = UNIT(minor(dev)); 741 742 /* Get the device data */ 743 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 744 if (bktr == NULL) { 745 /* the device is no longer valid/functioning */ 746 return (ENXIO); 747 } 748 749 DISABLE_INTR(s); 750 751 if (events & (POLLIN | POLLRDNORM)) { 752 753 switch ( FUNCTION( minor(dev) ) ) { 754 case VBI_DEV: 755 if(bktr->vbisize == 0) 756 selrecord(p, &bktr->vbi_select); 757 else 758 revents |= events & (POLLIN | POLLRDNORM); 759 break; 760 } 761 } 762 763 ENABLE_INTR(s); 764 765 return (revents); 766} 767 768#endif /* FreeBSD 4.x specific kernel interface routines */ 769 770/**********************************/ 771/* *** FreeBSD 2.2.x and 3.x *** */ 772/**********************************/ 773 774#if ((__FreeBSD__ == 2) || (__FreeBSD__ == 3)) 775 776static bktr_reg_t brooktree[ NBKTR ]; 777 778static const char* bktr_probe( pcici_t tag, pcidi_t type ); 779static void bktr_attach( pcici_t tag, int unit ); 780static void bktr_intr(void *arg) { common_bktr_intr(arg); } 781 782static u_long bktr_count; 783 784static struct pci_device bktr_device = { 785 "bktr", 786 bktr_probe, 787 bktr_attach, 788 &bktr_count 789}; 790 791DATA_SET (pcidevice_set, bktr_device); 792 793static d_open_t bktr_open; 794static d_close_t bktr_close; 795static d_read_t bktr_read; 796static d_write_t bktr_write; 797static d_ioctl_t bktr_ioctl; 798static d_mmap_t bktr_mmap; 799static d_poll_t bktr_poll; 800 801#define CDEV_MAJOR 92 802static struct cdevsw bktr_cdevsw = 803{ 804 bktr_open, bktr_close, bktr_read, bktr_write, 805 bktr_ioctl, nostop, nullreset, nodevtotty, 806 bktr_poll, bktr_mmap, NULL, "bktr", 807 NULL, -1 808}; 809 810static int bktr_devsw_installed; 811 812static void 813bktr_drvinit( void *unused ) 814{ 815 dev_t dev; 816 817 if ( ! bktr_devsw_installed ) { 818 dev = makedev(CDEV_MAJOR, 0); 819 cdevsw_add(&dev,&bktr_cdevsw, NULL); 820 bktr_devsw_installed = 1; 821 } 822} 823 824SYSINIT(bktrdev,SI_SUB_DRIVERS,SI_ORDER_MIDDLE+CDEV_MAJOR,bktr_drvinit,NULL) 825 826/* 827 * the boot time probe routine. 828 */ 829static const char* 830bktr_probe( pcici_t tag, pcidi_t type ) 831{ 832 unsigned int rev = pci_conf_read( tag, PCIR_REVID) & 0x000000ff; 833 834 switch (type) { 835 case BROOKTREE_848_PCI_ID: 836 if (rev == 0x12) return("BrookTree 848A"); 837 else return("BrookTree 848"); 838 case BROOKTREE_849_PCI_ID: 839 return("BrookTree 849A"); 840 case BROOKTREE_878_PCI_ID: 841 return("BrookTree 878"); 842 case BROOKTREE_879_PCI_ID: 843 return("BrookTree 879"); 844 }; 845 846 return ((char *)0); 847} 848 849/* 850 * the attach routine. 851 */ 852static void 853bktr_attach( pcici_t tag, int unit ) 854{ 855 bktr_ptr_t bktr; 856 u_long latency; 857 u_long fun; 858 unsigned int rev; 859 unsigned long base; 860#ifdef BROOKTREE_IRQ 861 u_long old_irq, new_irq; 862#endif 863 864 bktr = &brooktree[unit]; 865 866 if (unit >= NBKTR) { 867 printf("brooktree%d: attach: only %d units configured.\n", 868 unit, NBKTR); 869 printf("brooktree%d: attach: invalid unit number.\n", unit); 870 return; 871 } 872 873 /* build the device name for bktr_name() */ 874 snprintf(bktr->bktr_xname, sizeof(bktr->bktr_xname), "bktr%d",unit); 875 876 /* Enable Memory Mapping */ 877 fun = pci_conf_read(tag, PCI_COMMAND_STATUS_REG); 878 pci_conf_write(tag, PCI_COMMAND_STATUS_REG, fun | 2); 879 880 /* Enable Bus Mastering */ 881 fun = pci_conf_read(tag, PCI_COMMAND_STATUS_REG); 882 pci_conf_write(tag, PCI_COMMAND_STATUS_REG, fun | 4); 883 884 bktr->tag = tag; 885 886 887 /* 888 * Map control/status registers 889 */ 890 pci_map_mem( tag, PCI_MAP_REG_START, (vm_offset_t *) &base, 891 &bktr->phys_base ); 892#if (__FreeBSD_version >= 300000) 893 bktr->memt = I386_BUS_SPACE_MEM; /* XXX should use proper bus space */ 894 bktr->memh = (bus_space_handle_t)base; /* XXX functions here */ 895#endif 896 897 /* 898 * Disable the brooktree device 899 */ 900 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED); 901 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED); 902 903#ifdef BROOKTREE_IRQ /* from the configuration file */ 904 old_irq = pci_conf_read(tag, PCI_INTERRUPT_REG); 905 pci_conf_write(tag, PCI_INTERRUPT_REG, BROOKTREE_IRQ); 906 new_irq = pci_conf_read(tag, PCI_INTERRUPT_REG); 907 printf("bktr%d: attach: irq changed from %d to %d\n", 908 unit, (old_irq & 0xff), (new_irq & 0xff)); 909#endif 910 911 /* 912 * setup the interrupt handling routine 913 */ 914 pci_map_int(tag, bktr_intr, (void*) bktr, &tty_imask); 915 916 917 /* Update the Device Control Register */ 918 /* on Bt878 and Bt879 cards */ 919 fun = pci_conf_read(tag, 0x40); 920 fun = fun | 1; /* Enable writes to the sub-system vendor ID */ 921 922#if defined( BKTR_430_FX_MODE ) 923 if (bootverbose) printf("Using 430 FX chipset compatibilty mode\n"); 924 fun = fun | 2; /* Enable Intel 430 FX compatibility mode */ 925#endif 926 927#if defined( BKTR_SIS_VIA_MODE ) 928 if (bootverbose) printf("Using SiS/VIA chipset compatibilty mode\n"); 929 fun = fun | 4; /* Enable SiS/VIA compatibility mode (usefull for 930 OPTi chipset motherboards too */ 931#endif 932 pci_conf_write(tag, 0x40, fun); 933 934 935 /* XXX call bt848_i2c dependent attach() routine */ 936#if defined(BKTR_USE_FREEBSD_SMBUS) 937 if (bt848_i2c_attach(unit, bktr, &bktr->i2c_sc)) 938 printf("bktr%d: i2c_attach: can't attach\n", unit); 939#endif 940 941 942/* 943 * PCI latency timer. 32 is a good value for 4 bus mastering slots, if 944 * you have more than four, then 16 would probably be a better value. 945 */ 946#ifndef BROOKTREE_DEF_LATENCY_VALUE 947#define BROOKTREE_DEF_LATENCY_VALUE 10 948#endif 949 latency = pci_conf_read(tag, PCI_LATENCY_TIMER); 950 latency = (latency >> 8) & 0xff; 951 if ( bootverbose ) { 952 if (latency) 953 printf("brooktree%d: PCI bus latency is", unit); 954 else 955 printf("brooktree%d: PCI bus latency was 0 changing to", 956 unit); 957 } 958 if ( !latency ) { 959 latency = BROOKTREE_DEF_LATENCY_VALUE; 960 pci_conf_write(tag, PCI_LATENCY_TIMER, latency<<8); 961 } 962 if ( bootverbose ) { 963 printf(" %d.\n", (int) latency); 964 } 965 966 967 /* read the pci device id and revision id */ 968 fun = pci_conf_read(tag, PCI_ID_REG); 969 rev = pci_conf_read(tag, PCIR_REVID) & 0x000000ff; 970 971 /* call the common attach code */ 972 common_bktr_attach( bktr, unit, fun, rev ); 973 974} 975 976 977/* 978 * Special Memory Allocation 979 */ 980vm_offset_t 981get_bktr_mem( int unit, unsigned size ) 982{ 983 vm_offset_t addr = 0; 984 985 addr = vm_page_alloc_contig(size, 0x100000, 0xffffffff, 1<<24); 986 if (addr == 0) 987 addr = vm_page_alloc_contig(size, 0x100000, 0xffffffff, 988 PAGE_SIZE); 989 if (addr == 0) { 990 printf("bktr%d: Unable to allocate %d bytes of memory.\n", 991 unit, size); 992 } 993 994 return( addr ); 995} 996 997/*--------------------------------------------------------- 998** 999** BrookTree 848 character device driver routines 1000** 1001**--------------------------------------------------------- 1002*/ 1003 1004 1005#define VIDEO_DEV 0x00 1006#define TUNER_DEV 0x01 1007#define VBI_DEV 0x02 1008 1009#define UNIT(x) ((x) & 0x0f) 1010#define FUNCTION(x) ((x >> 4) & 0x0f) 1011 1012 1013/* 1014 * 1015 */ 1016int 1017bktr_open( dev_t dev, int flags, int fmt, struct proc *p ) 1018{ 1019 bktr_ptr_t bktr; 1020 int unit; 1021 1022 unit = UNIT( minor(dev) ); 1023 if (unit >= NBKTR) /* unit out of range */ 1024 return( ENXIO ); 1025 1026 bktr = &(brooktree[ unit ]); 1027 1028 if (!(bktr->flags & METEOR_INITALIZED)) /* device not found */ 1029 return( ENXIO ); 1030 1031 1032 if (bt848_card != -1) { 1033 if ((bt848_card >> 8 == unit ) && 1034 ( (bt848_card & 0xff) < Bt848_MAX_CARD )) { 1035 if ( bktr->bt848_card != (bt848_card & 0xff) ) { 1036 bktr->bt848_card = (bt848_card & 0xff); 1037 probeCard(bktr, FALSE, unit); 1038 } 1039 } 1040 } 1041 1042 if (bt848_tuner != -1) { 1043 if ((bt848_tuner >> 8 == unit ) && 1044 ( (bt848_tuner & 0xff) < Bt848_MAX_TUNER )) { 1045 if ( bktr->bt848_tuner != (bt848_tuner & 0xff) ) { 1046 bktr->bt848_tuner = (bt848_tuner & 0xff); 1047 probeCard(bktr, FALSE, unit); 1048 } 1049 } 1050 } 1051 1052 if (bt848_reverse_mute != -1) { 1053 if ((bt848_reverse_mute >> 8) == unit ) { 1054 bktr->reverse_mute = bt848_reverse_mute & 0xff; 1055 } 1056 } 1057 1058 if (bt848_slow_msp_audio != -1) { 1059 if ((bt848_slow_msp_audio >> 8) == unit ) { 1060 bktr->slow_msp_audio = (bt848_slow_msp_audio & 0xff); 1061 } 1062 } 1063 1064 switch ( FUNCTION( minor(dev) ) ) { 1065 case VIDEO_DEV: 1066 return( video_open( bktr ) ); 1067 case TUNER_DEV: 1068 return( tuner_open( bktr ) ); 1069 case VBI_DEV: 1070 return( vbi_open( bktr ) ); 1071 } 1072 return( ENXIO ); 1073} 1074 1075 1076/* 1077 * 1078 */ 1079int 1080bktr_close( dev_t dev, int flags, int fmt, struct proc *p ) 1081{ 1082 bktr_ptr_t bktr; 1083 int unit; 1084 1085 unit = UNIT( minor(dev) ); 1086 if (unit >= NBKTR) /* unit out of range */ 1087 return( ENXIO ); 1088 1089 bktr = &(brooktree[ unit ]); 1090 1091 switch ( FUNCTION( minor(dev) ) ) { 1092 case VIDEO_DEV: 1093 return( video_close( bktr ) ); 1094 case TUNER_DEV: 1095 return( tuner_close( bktr ) ); 1096 case VBI_DEV: 1097 return( vbi_close( bktr ) ); 1098 } 1099 1100 return( ENXIO ); 1101} 1102 1103/* 1104 * 1105 */ 1106int 1107bktr_read( dev_t dev, struct uio *uio, int ioflag ) 1108{ 1109 bktr_ptr_t bktr; 1110 int unit; 1111 1112 unit = UNIT(minor(dev)); 1113 if (unit >= NBKTR) /* unit out of range */ 1114 return( ENXIO ); 1115 1116 bktr = &(brooktree[unit]); 1117 1118 switch ( FUNCTION( minor(dev) ) ) { 1119 case VIDEO_DEV: 1120 return( video_read( bktr, unit, dev, uio ) ); 1121 case VBI_DEV: 1122 return( vbi_read( bktr, uio, ioflag ) ); 1123 } 1124 return( ENXIO ); 1125} 1126 1127 1128/* 1129 * 1130 */ 1131int 1132bktr_write( dev_t dev, struct uio *uio, int ioflag ) 1133{ 1134 return( EINVAL ); /* XXX or ENXIO ? */ 1135} 1136 1137/* 1138 * 1139 */ 1140int 1141bktr_ioctl( dev_t dev, ioctl_cmd_t cmd, caddr_t arg, int flag, struct proc* pr ) 1142{ 1143 bktr_ptr_t bktr; 1144 int unit; 1145 1146 unit = UNIT(minor(dev)); 1147 if (unit >= NBKTR) /* unit out of range */ 1148 return( ENXIO ); 1149 1150 bktr = &(brooktree[ unit ]); 1151 1152 if (bktr->bigbuf == 0) /* no frame buffer allocated (ioctl failed) */ 1153 return( ENOMEM ); 1154 1155 switch ( FUNCTION( minor(dev) ) ) { 1156 case VIDEO_DEV: 1157 return( video_ioctl( bktr, unit, cmd, arg, pr ) ); 1158 case TUNER_DEV: 1159 return( tuner_ioctl( bktr, unit, cmd, arg, pr ) ); 1160 } 1161 1162 return( ENXIO ); 1163} 1164 1165/* 1166 * bktr_mmap. 1167 * Note: 2.2.5/2.2.6/2.2.7/3.0 users must manually 1168 * edit the line below and change "vm_offset_t" to "int" 1169 */ 1170int bktr_mmap( dev_t dev, vm_offset_t offset, int nprot ) 1171 1172{ 1173 int unit; 1174 bktr_ptr_t bktr; 1175 1176 unit = UNIT(minor(dev)); 1177 1178 if (unit >= NBKTR || FUNCTION(minor(dev)) > 0) 1179 return( -1 ); 1180 1181 bktr = &(brooktree[ unit ]); 1182 1183 if (nprot & PROT_EXEC) 1184 return( -1 ); 1185 1186 if (offset < 0) 1187 return( -1 ); 1188 1189 if (offset >= bktr->alloc_pages * PAGE_SIZE) 1190 return( -1 ); 1191 1192 return( i386_btop(vtophys(bktr->bigbuf) + offset) ); 1193} 1194 1195int bktr_poll( dev_t dev, int events, struct proc *p) 1196{ 1197 int unit; 1198 bktr_ptr_t bktr; 1199 int revents = 0; 1200 1201 unit = UNIT(minor(dev)); 1202 1203 if (unit >= NBKTR) 1204 return( -1 ); 1205 1206 bktr = &(brooktree[ unit ]); 1207 1208 disable_intr(); 1209 1210 if (events & (POLLIN | POLLRDNORM)) { 1211 1212 switch ( FUNCTION( minor(dev) ) ) { 1213 case VBI_DEV: 1214 if(bktr->vbisize == 0) 1215 selrecord(p, &bktr->vbi_select); 1216 else 1217 revents |= events & (POLLIN | POLLRDNORM); 1218 break; 1219 } 1220 } 1221 1222 enable_intr(); 1223 1224 return (revents); 1225} 1226 1227 1228#endif /* FreeBSD 2.2.x and 3.x specific kernel interface routines */ 1229 1230 1231/*****************/ 1232/* *** BSDI *** */ 1233/*****************/ 1234 1235#if defined(__bsdi__) 1236#endif /* __bsdi__ BSDI specific kernel interface routines */ 1237 1238 1239/*****************************/ 1240/* *** OpenBSD / NetBSD *** */ 1241/*****************************/ 1242#if defined(__NetBSD__) || defined(__OpenBSD__) 1243 1244#define IPL_VIDEO IPL_BIO /* XXX */ 1245 1246static int bktr_intr(void *arg) { return common_bktr_intr(arg); } 1247 1248#define bktr_open bktropen 1249#define bktr_close bktrclose 1250#define bktr_read bktrread 1251#define bktr_write bktrwrite 1252#define bktr_ioctl bktrioctl 1253#define bktr_mmap bktrmmap 1254 1255vm_offset_t vm_page_alloc_contig(vm_offset_t, vm_offset_t, 1256 vm_offset_t, vm_offset_t); 1257 1258#if defined(__OpenBSD__) 1259static int bktr_probe __P((struct device *, void *, void *)); 1260#else 1261static int bktr_probe __P((struct device *, struct cfdata *, void *)); 1262#endif 1263static void bktr_attach __P((struct device *, struct device *, void *)); 1264 1265struct cfattach bktr_ca = { 1266 sizeof(struct bktr_softc), bktr_probe, bktr_attach 1267}; 1268 1269#if defined(__NetBSD__) 1270extern struct cfdriver bktr_cd; 1271#else 1272struct cfdriver bktr_cd = { 1273 NULL, "bktr", DV_DULL 1274}; 1275#endif 1276 1277int 1278bktr_probe(parent, match, aux) 1279 struct device *parent; 1280#if defined(__OpenBSD__) 1281 void *match; 1282#else 1283 struct cfdata *match; 1284#endif 1285 void *aux; 1286{ 1287 struct pci_attach_args *pa = aux; 1288 1289 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_BROOKTREE && 1290 (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT848 || 1291 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT849 || 1292 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT878 || 1293 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT879)) 1294 return 1; 1295 1296 return 0; 1297} 1298 1299 1300/* 1301 * the attach routine. 1302 */ 1303static void 1304bktr_attach(struct device *parent, struct device *self, void *aux) 1305{ 1306 bktr_ptr_t bktr; 1307 u_long latency; 1308 u_long fun; 1309 unsigned int rev; 1310 1311#if defined(__OpenBSD__) 1312 struct pci_attach_args *pa = aux; 1313 pci_chipset_tag_t pc = pa->pa_pc; 1314 1315 pci_intr_handle_t ih; 1316 const char *intrstr; 1317 int retval; 1318 int unit; 1319 1320 bktr = (bktr_ptr_t)self; 1321 unit = bktr->bktr_dev.dv_unit; 1322 1323 bktr->pc = pa->pa_pc; 1324 bktr->tag = pa->pa_tag; 1325 bktr->dmat = pa->pa_dmat; 1326 1327 /* 1328 * map memory 1329 */ 1330 bktr->memt = pa->pa_memt; 1331 retval = pci_mem_find(pc, pa->pa_tag, PCI_MAPREG_START, 1332 &bktr->phys_base, &bktr->obmemsz, NULL); 1333 if (!retval) 1334 retval = bus_space_map(pa->pa_memt, bktr->phys_base, 1335 bktr->obmemsz, 0, &bktr->memh); 1336 if (retval) { 1337 printf(": couldn't map memory\n"); 1338 return; 1339 } 1340 1341 1342 /* 1343 * map interrupt 1344 */ 1345 if (pci_intr_map(pa->pa_pc, pa->pa_intrtag, pa->pa_intrpin, 1346 pa->pa_intrline, &ih)) { 1347 printf(": couldn't map interrupt\n"); 1348 return; 1349 } 1350 intrstr = pci_intr_string(pa->pa_pc, ih); 1351 1352 bktr->ih = pci_intr_establish(pa->pa_pc, ih, IPL_VIDEO, 1353 bktr_intr, bktr, bktr->bktr_dev.dv_xname); 1354 if (bktr->ih == NULL) { 1355 printf(": couldn't establish interrupt"); 1356 if (intrstr != NULL) 1357 printf(" at %s", intrstr); 1358 printf("\n"); 1359 return; 1360 } 1361 1362 if (intrstr != NULL) 1363 printf(": %s\n", intrstr); 1364#endif /* __OpenBSD__ */ 1365 1366#if defined(__NetBSD__) 1367 struct pci_attach_args *pa = aux; 1368 pci_intr_handle_t ih; 1369 const char *intrstr; 1370 int retval; 1371 int unit; 1372 1373 bktr = (bktr_ptr_t)self; 1374 unit = bktr->bktr_dev.dv_unit; 1375 bktr->dmat = pa->pa_dmat; 1376 1377 printf("\n"); 1378 1379 /* 1380 * map memory 1381 */ 1382 retval = pci_mapreg_map(pa, PCI_MAPREG_START, 1383 PCI_MAPREG_TYPE_MEM 1384 | PCI_MAPREG_MEM_TYPE_32BIT, 0, 1385 &bktr->memt, &bktr->memh, NULL, 1386 &bktr->obmemsz); 1387 DPR(("pci_mapreg_map: memt %x, memh %x, size %x\n", 1388 bktr->memt, (u_int)bktr->memh, (u_int)bktr->obmemsz)); 1389 if (retval) { 1390 printf("%s: couldn't map memory\n", bktr_name(bktr)); 1391 return; 1392 } 1393 1394 /* 1395 * Disable the brooktree device 1396 */ 1397 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED); 1398 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED); 1399 1400 /* 1401 * map interrupt 1402 */ 1403 if (pci_intr_map(pa->pa_pc, pa->pa_intrtag, pa->pa_intrpin, 1404 pa->pa_intrline, &ih)) { 1405 printf("%s: couldn't map interrupt\n", 1406 bktr_name(bktr)); 1407 return; 1408 } 1409 intrstr = pci_intr_string(pa->pa_pc, ih); 1410 bktr->ih = pci_intr_establish(pa->pa_pc, ih, IPL_VIDEO, 1411 bktr_intr, bktr); 1412 if (bktr->ih == NULL) { 1413 printf("%s: couldn't establish interrupt", 1414 bktr_name(bktr)); 1415 if (intrstr != NULL) 1416 printf(" at %s", intrstr); 1417 printf("\n"); 1418 return; 1419 } 1420 if (intrstr != NULL) 1421 printf("%s: interrupting at %s\n", bktr_name(bktr), 1422 intrstr); 1423#endif /* __NetBSD__ */ 1424 1425/* 1426 * PCI latency timer. 32 is a good value for 4 bus mastering slots, if 1427 * you have more than four, then 16 would probably be a better value. 1428 */ 1429#ifndef BROOKTREE_DEF_LATENCY_VALUE 1430#define BROOKTREE_DEF_LATENCY_VALUE 10 1431#endif 1432 latency = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_LATENCY_TIMER); 1433 latency = (latency >> 8) & 0xff; 1434 1435 if (!latency) { 1436 if (bootverbose) { 1437 printf("%s: PCI bus latency was 0 changing to %d", 1438 bktr_name(bktr), BROOKTREE_DEF_LATENCY_VALUE); 1439 } 1440 latency = BROOKTREE_DEF_LATENCY_VALUE; 1441 pci_conf_write(pa->pa_pc, pa->pa_tag, 1442 PCI_LATENCY_TIMER, latency<<8); 1443 } 1444 1445 1446 /* Enabled Bus Master 1447 XXX: check if all old DMA is stopped first (e.g. after warm 1448 boot) */ 1449 fun = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); 1450 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, 1451 fun | PCI_COMMAND_MASTER_ENABLE); 1452 1453 /* read the pci id and determine the card type */ 1454 fun = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_ID_REG); 1455 rev = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_CLASS_REG) & 0x000000ff; 1456 1457 common_bktr_attach(bktr, unit, fun, rev); 1458} 1459 1460 1461/* 1462 * Special Memory Allocation 1463 */ 1464vm_offset_t 1465get_bktr_mem(bktr, dmapp, size) 1466 bktr_ptr_t bktr; 1467 bus_dmamap_t *dmapp; 1468 unsigned int size; 1469{ 1470 bus_dma_tag_t dmat = bktr->dmat; 1471 bus_dma_segment_t seg; 1472 bus_size_t align; 1473 int rseg; 1474 caddr_t kva; 1475 1476 /* 1477 * Allocate a DMA area 1478 */ 1479 align = 1 << 24; 1480 if (bus_dmamem_alloc(dmat, size, align, 0, &seg, 1, 1481 &rseg, BUS_DMA_NOWAIT)) { 1482 align = PAGE_SIZE; 1483 if (bus_dmamem_alloc(dmat, size, align, 0, &seg, 1, 1484 &rseg, BUS_DMA_NOWAIT)) { 1485 printf("%s: Unable to dmamem_alloc of %d bytes\n", 1486 bktr_name(bktr), size); 1487 return 0; 1488 } 1489 } 1490 if (bus_dmamem_map(dmat, &seg, rseg, size, 1491 &kva, BUS_DMA_NOWAIT|BUS_DMA_COHERENT)) { 1492 printf("%s: Unable to dmamem_map of %d bytes\n", 1493 bktr_name(bktr), size); 1494 bus_dmamem_free(dmat, &seg, rseg); 1495 return 0; 1496 } 1497#ifdef __OpenBSD__ 1498 bktr->dm_mapsize = size; 1499#endif 1500 /* 1501 * Create and locd the DMA map for the DMA area 1502 */ 1503 if (bus_dmamap_create(dmat, size, 1, size, 0, BUS_DMA_NOWAIT, dmapp)) { 1504 printf("%s: Unable to dmamap_create of %d bytes\n", 1505 bktr_name(bktr), size); 1506 bus_dmamem_unmap(dmat, kva, size); 1507 bus_dmamem_free(dmat, &seg, rseg); 1508 return 0; 1509 } 1510 if (bus_dmamap_load(dmat, *dmapp, kva, size, NULL, BUS_DMA_NOWAIT)) { 1511 printf("%s: Unable to dmamap_load of %d bytes\n", 1512 bktr_name(bktr), size); 1513 bus_dmamem_unmap(dmat, kva, size); 1514 bus_dmamem_free(dmat, &seg, rseg); 1515 bus_dmamap_destroy(dmat, *dmapp); 1516 return 0; 1517 } 1518 return (vm_offset_t)kva; 1519} 1520 1521void 1522free_bktr_mem(bktr, dmap, kva) 1523 bktr_ptr_t bktr; 1524 bus_dmamap_t dmap; 1525 vm_offset_t kva; 1526{ 1527 bus_dma_tag_t dmat = bktr->dmat; 1528 1529#ifdef __NetBSD__ 1530 bus_dmamem_unmap(dmat, (caddr_t)kva, dmap->dm_mapsize); 1531#else 1532 bus_dmamem_unmap(dmat, (caddr_t)kva, bktr->dm_mapsize); 1533#endif 1534 bus_dmamem_free(dmat, dmap->dm_segs, 1); 1535 bus_dmamap_destroy(dmat, dmap); 1536} 1537 1538 1539/*--------------------------------------------------------- 1540** 1541** BrookTree 848 character device driver routines 1542** 1543**--------------------------------------------------------- 1544*/ 1545 1546 1547#define VIDEO_DEV 0x00 1548#define TUNER_DEV 0x01 1549#define VBI_DEV 0x02 1550 1551#define UNIT(x) (minor((x) & 0x0f)) 1552#define FUNCTION(x) (minor((x >> 4) & 0x0f)) 1553 1554/* 1555 * 1556 */ 1557int 1558bktr_open(dev_t dev, int flags, int fmt, struct proc *p) 1559{ 1560 bktr_ptr_t bktr; 1561 int unit; 1562 1563 unit = UNIT(dev); 1564 1565 /* unit out of range */ 1566 if ((unit > bktr_cd.cd_ndevs) || (bktr_cd.cd_devs[unit] == NULL)) 1567 return(ENXIO); 1568 1569 bktr = bktr_cd.cd_devs[unit]; 1570 1571 if (!(bktr->flags & METEOR_INITALIZED)) /* device not found */ 1572 return(ENXIO); 1573 1574 switch (FUNCTION(dev)) { 1575 case VIDEO_DEV: 1576 return(video_open(bktr)); 1577 case TUNER_DEV: 1578 return(tuner_open(bktr)); 1579 case VBI_DEV: 1580 return(vbi_open(bktr)); 1581 } 1582 1583 return(ENXIO); 1584} 1585 1586 1587/* 1588 * 1589 */ 1590int 1591bktr_close(dev_t dev, int flags, int fmt, struct proc *p) 1592{ 1593 bktr_ptr_t bktr; 1594 int unit; 1595 1596 unit = UNIT(dev); 1597 1598 bktr = bktr_cd.cd_devs[unit]; 1599 1600 switch (FUNCTION(dev)) { 1601 case VIDEO_DEV: 1602 return(video_close(bktr)); 1603 case TUNER_DEV: 1604 return(tuner_close(bktr)); 1605 case VBI_DEV: 1606 return(vbi_close(bktr)); 1607 } 1608 1609 return(ENXIO); 1610} 1611 1612/* 1613 * 1614 */ 1615int 1616bktr_read(dev_t dev, struct uio *uio, int ioflag) 1617{ 1618 bktr_ptr_t bktr; 1619 int unit; 1620 1621 unit = UNIT(dev); 1622 1623 bktr = bktr_cd.cd_devs[unit]; 1624 1625 switch (FUNCTION(dev)) { 1626 case VIDEO_DEV: 1627 return(video_read(bktr, unit, dev, uio)); 1628 case VBI_DEV: 1629 return(vbi_read(bktr, uio, ioflag)); 1630 } 1631 1632 return(ENXIO); 1633} 1634 1635 1636/* 1637 * 1638 */ 1639int 1640bktr_write(dev_t dev, struct uio *uio, int ioflag) 1641{ 1642 /* operation not supported */ 1643 return(EOPNOTSUPP); 1644} 1645 1646/* 1647 * 1648 */ 1649int 1650bktr_ioctl(dev_t dev, ioctl_cmd_t cmd, caddr_t arg, int flag, struct proc* pr) 1651{ 1652 bktr_ptr_t bktr; 1653 int unit; 1654 1655 unit = UNIT(dev); 1656 1657 bktr = bktr_cd.cd_devs[unit]; 1658 1659 if (bktr->bigbuf == 0) /* no frame buffer allocated (ioctl failed) */ 1660 return(ENOMEM); 1661 1662 switch (FUNCTION(dev)) { 1663 case VIDEO_DEV: 1664 return(video_ioctl(bktr, unit, cmd, arg, pr)); 1665 case TUNER_DEV: 1666 return(tuner_ioctl(bktr, unit, cmd, arg, pr)); 1667 } 1668 1669 return(ENXIO); 1670} 1671 1672/* 1673 * 1674 */ 1675paddr_t 1676bktr_mmap(dev_t dev, off_t offset, int nprot) 1677{ 1678 int unit; 1679 bktr_ptr_t bktr; 1680 1681 unit = UNIT(dev); 1682 1683 if (FUNCTION(dev) > 0) /* only allow mmap on /dev/bktr[n] */ 1684 return(-1); 1685 1686 bktr = bktr_cd.cd_devs[unit]; 1687 1688 if ((vaddr_t)offset < 0) 1689 return(-1); 1690 1691 if ((vaddr_t)offset >= bktr->alloc_pages * PAGE_SIZE) 1692 return(-1); 1693 1694#ifdef __NetBSD__ 1695 return (bus_dmamem_mmap(bktr->dmat, bktr->dm_mem->dm_segs, 1, 1696 (vaddr_t)offset, nprot, BUS_DMA_WAITOK)); 1697#else 1698 return(i386_btop(vtophys(bktr->bigbuf) + offset)); 1699#endif 1700} 1701 1702#endif /* __NetBSD__ || __OpenBSD__ */ 1703