bktr_os.c revision 62214
1/* $FreeBSD: head/sys/dev/bktr/bktr_os.c 62214 2000-06-28 15:09:12Z 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#include "opt_devfs.h" 54#endif /* __FreeBSD__ */ 55 56#include "opt_bktr.h" /* include any kernel config options */ 57 58#define FIFO_RISC_DISABLED 0 59#define ALL_INTS_DISABLED 0 60 61 62/*******************/ 63/* *** FreeBSD *** */ 64/*******************/ 65#ifdef __FreeBSD__ 66 67#include <sys/param.h> 68#include <sys/systm.h> 69#include <sys/conf.h> 70#include <sys/uio.h> 71#include <sys/kernel.h> 72#include <sys/signalvar.h> 73#include <sys/mman.h> 74#include <sys/poll.h> 75#include <sys/select.h> 76#include <sys/vnode.h> 77 78#include <vm/vm.h> 79#include <vm/vm_kern.h> 80#include <vm/pmap.h> 81#include <vm/vm_extern.h> 82 83#if (__FreeBSD_version < 400000) 84#ifdef DEVFS 85#include <sys/devfsext.h> 86#endif /* DEVFS */ 87#endif 88 89#if (__FreeBSD_version >=400000) || (NSMBUS > 0) 90#include <sys/bus.h> /* used by smbus and newbus */ 91#endif 92 93#if (__FreeBSD_version >=300000) 94#include <machine/bus_memio.h> /* used by bus space */ 95#include <machine/bus.h> /* used by bus space and newbus */ 96#include <sys/bus.h> 97#endif 98 99#if (__FreeBSD_version >=400000) 100#include <sys/rman.h> /* used by newbus */ 101#include <machine/resource.h> /* used by newbus */ 102#endif 103 104 105#include <machine/clock.h> /* for DELAY */ 106#include <pci/pcivar.h> 107#include <pci/pcireg.h> 108 109#if (NSMBUS > 0) 110#include <dev/bktr/bktr_i2c.h> 111#endif 112 113#include <sys/sysctl.h> 114int bt848_card = -1; 115int bt848_tuner = -1; 116int bt848_reverse_mute = -1; 117int bt848_format = -1; 118int bt848_slow_msp_audio = -1; 119 120SYSCTL_NODE(_hw, OID_AUTO, bt848, CTLFLAG_RW, 0, "Bt848 Driver mgmt"); 121SYSCTL_INT(_hw_bt848, OID_AUTO, card, CTLFLAG_RW, &bt848_card, -1, ""); 122SYSCTL_INT(_hw_bt848, OID_AUTO, tuner, CTLFLAG_RW, &bt848_tuner, -1, ""); 123SYSCTL_INT(_hw_bt848, OID_AUTO, reverse_mute, CTLFLAG_RW, &bt848_reverse_mute, -1, ""); 124SYSCTL_INT(_hw_bt848, OID_AUTO, format, CTLFLAG_RW, &bt848_format, -1, ""); 125SYSCTL_INT(_hw_bt848, OID_AUTO, slow_msp_audio, CTLFLAG_RW, &bt848_slow_msp_audio, -1, ""); 126 127#if (__FreeBSD__ == 2) 128#define PCIR_REVID PCI_CLASS_REG 129#endif 130 131#endif /* end freebsd section */ 132 133 134 135/****************/ 136/* *** BSDI *** */ 137/****************/ 138#ifdef __bsdi__ 139#endif /* __bsdi__ */ 140 141 142/**************************/ 143/* *** OpenBSD/NetBSD *** */ 144/**************************/ 145#if defined(__NetBSD__) || defined(__OpenBSD__) 146 147#include <sys/param.h> 148#include <sys/systm.h> 149#include <sys/conf.h> 150#include <sys/uio.h> 151#include <sys/kernel.h> 152#include <sys/signalvar.h> 153#include <sys/mman.h> 154#include <sys/poll.h> 155#include <sys/select.h> 156#include <sys/vnode.h> 157 158#include <vm/vm.h> 159 160#ifndef __NetBSD__ 161#include <vm/vm_kern.h> 162#include <vm/pmap.h> 163#include <vm/vm_extern.h> 164#endif 165 166#include <sys/device.h> 167#include <dev/pci/pcivar.h> 168#include <dev/pci/pcireg.h> 169#include <dev/pci/pcidevs.h> 170 171#define BKTR_DEBUG 172#ifdef BKTR_DEBUG 173int bktr_debug = 0; 174#define DPR(x) (bktr_debug ? printf x : 0) 175#else 176#define DPR(x) 177#endif 178#endif /* __NetBSD__ || __OpenBSD__ */ 179 180 181#ifdef __NetBSD__ 182#include <dev/ic/bt8xx.h> /* NetBSD location for .h files */ 183#include <dev/pci/bktr/bktr_reg.h> 184#include <dev/pci/bktr/bktr_tuner.h> 185#include <dev/pci/bktr/bktr_card.h> 186#include <dev/pci/bktr/bktr_audio.h> 187#include <dev/pci/bktr/bktr_core.h> 188#include <dev/pci/bktr/bktr_os.h> 189#else /* Traditional location for .h files */ 190#include <machine/ioctl_meteor.h> 191#include <machine/ioctl_bt848.h> /* extensions to ioctl_meteor.h */ 192#include <dev/bktr/bktr_reg.h> 193#include <dev/bktr/bktr_tuner.h> 194#include <dev/bktr/bktr_card.h> 195#include <dev/bktr/bktr_audio.h> 196#include <dev/bktr/bktr_core.h> 197#include <dev/bktr/bktr_os.h> 198#endif 199 200 201 202/****************************/ 203/* *** FreeBSD 4.x code *** */ 204/****************************/ 205#if (__FreeBSD_version >= 400000) 206 207static int bktr_probe( device_t dev ); 208static int bktr_attach( device_t dev ); 209static int bktr_detach( device_t dev ); 210static int bktr_shutdown( device_t dev ); 211static void bktr_intr(void *arg) { common_bktr_intr(arg); } 212 213static device_method_t bktr_methods[] = { 214 /* Device interface */ 215 DEVMETHOD(device_probe, bktr_probe), 216 DEVMETHOD(device_attach, bktr_attach), 217 DEVMETHOD(device_detach, bktr_detach), 218 DEVMETHOD(device_shutdown, bktr_shutdown), 219 220 { 0, 0 } 221}; 222 223static driver_t bktr_driver = { 224 "bktr", 225 bktr_methods, 226 sizeof(struct bktr_softc), 227}; 228 229static devclass_t bktr_devclass; 230 231static d_open_t bktr_open; 232static d_close_t bktr_close; 233static d_read_t bktr_read; 234static d_write_t bktr_write; 235static d_ioctl_t bktr_ioctl; 236static d_mmap_t bktr_mmap; 237static d_poll_t bktr_poll; 238 239#define CDEV_MAJOR 92 240static struct cdevsw bktr_cdevsw = { 241 /* open */ bktr_open, 242 /* close */ bktr_close, 243 /* read */ bktr_read, 244 /* write */ bktr_write, 245 /* ioctl */ bktr_ioctl, 246 /* poll */ bktr_poll, 247 /* mmap */ bktr_mmap, 248 /* strategy */ nostrategy, 249 /* name */ "bktr", 250 /* maj */ CDEV_MAJOR, 251 /* dump */ nodump, 252 /* psize */ nopsize, 253 /* flags */ 0, 254 /* bmaj */ -1 255}; 256 257DRIVER_MODULE(bktr, pci, bktr_driver, bktr_devclass, 0, 0); 258 259 260/* 261 * the boot time probe routine. 262 */ 263static int 264bktr_probe( device_t dev ) 265{ 266 unsigned int type = pci_get_devid(dev); 267 unsigned int rev = pci_get_revid(dev); 268 269 switch (type) { 270 case BROOKTREE_848_PCI_ID: 271 if (rev == 0x12) device_set_desc(dev, "BrookTree 848A"); 272 else device_set_desc(dev, "BrookTree 848"); 273 return 0; 274 case BROOKTREE_849_PCI_ID: 275 device_set_desc(dev, "BrookTree 849A"); 276 return 0; 277 case BROOKTREE_878_PCI_ID: 278 device_set_desc(dev, "BrookTree 878"); 279 return 0; 280 case BROOKTREE_879_PCI_ID: 281 device_set_desc(dev, "BrookTree 879"); 282 return 0; 283 }; 284 285 return ENXIO; 286} 287 288 289/* 290 * the attach routine. 291 */ 292static int 293bktr_attach( device_t dev ) 294{ 295 u_long latency; 296 u_long fun; 297 u_long val; 298 unsigned int rev; 299 unsigned int unit; 300 int error = 0; 301 int rid; 302#ifdef BROOKTREE_IRQ 303 u_long old_irq, new_irq; 304#endif 305 306 struct bktr_softc *bktr = device_get_softc(dev); 307 308 unit = device_get_unit(dev); 309 310 /* build the device name for bktr_name() */ 311 snprintf(bktr->bktr_xname, sizeof(bktr->bktr_xname), "bktr%d",unit); 312 313 /* 314 * Enable bus mastering and Memory Mapped device 315 */ 316 val = pci_read_config(dev, PCIR_COMMAND, 4); 317 val |= (PCIM_CMD_MEMEN|PCIM_CMD_BUSMASTEREN); 318 pci_write_config(dev, PCIR_COMMAND, val, 4); 319 320 /* 321 * Map control/status registers. 322 */ 323 rid = PCIR_MAPS; 324 bktr->res_mem = bus_alloc_resource(dev, SYS_RES_MEMORY, &rid, 325 0, ~0, 1, RF_ACTIVE); 326 327 if (!bktr->res_mem) { 328 device_printf(dev, "could not map memory\n"); 329 error = ENXIO; 330 goto fail; 331 } 332 bktr->memt = rman_get_bustag(bktr->res_mem); 333 bktr->memh = rman_get_bushandle(bktr->res_mem); 334 335 336 /* 337 * Disable the brooktree device 338 */ 339 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED); 340 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED); 341 342 343#ifdef BROOKTREE_IRQ /* from the configuration file */ 344 old_irq = pci_conf_read(tag, PCI_INTERRUPT_REG); 345 pci_conf_write(tag, PCI_INTERRUPT_REG, BROOKTREE_IRQ); 346 new_irq = pci_conf_read(tag, PCI_INTERRUPT_REG); 347 printf("bktr%d: attach: irq changed from %d to %d\n", 348 unit, (old_irq & 0xff), (new_irq & 0xff)); 349#endif 350 351 /* 352 * Allocate our interrupt. 353 */ 354 rid = 0; 355 bktr->res_irq = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 0, ~0, 1, 356 RF_SHAREABLE | RF_ACTIVE); 357 if (bktr->res_irq == NULL) { 358 device_printf(dev, "could not map interrupt\n"); 359 error = ENXIO; 360 goto fail; 361 } 362 363 error = bus_setup_intr(dev, bktr->res_irq, INTR_TYPE_TTY, 364 bktr_intr, bktr, &bktr->res_ih); 365 if (error) { 366 device_printf(dev, "could not setup irq\n"); 367 goto fail; 368 369 } 370 371 372 /* Update the Device Control Register */ 373 /* on Bt878 and Bt879 cards */ 374 fun = pci_read_config( dev, 0x40, 2); 375 fun = fun | 1; /* Enable writes to the sub-system vendor ID */ 376 377#if defined( BKTR_430_FX_MODE ) 378 if (bootverbose) printf("Using 430 FX chipset compatibilty mode\n"); 379 fun = fun | 2; /* Enable Intel 430 FX compatibility mode */ 380#endif 381 382#if defined( BKTR_SIS_VIA_MODE ) 383 if (bootverbose) printf("Using SiS/VIA chipset compatibilty mode\n"); 384 fun = fun | 4; /* Enable SiS/VIA compatibility mode (usefull for 385 OPTi chipset motherboards too */ 386#endif 387 pci_write_config(dev, 0x40, fun, 2); 388 389 390 /* XXX call bt848_i2c dependent attach() routine */ 391#if (NSMBUS > 0) 392 if (bt848_i2c_attach(unit, bktr, &bktr->i2c_sc)) 393 printf("bktr%d: i2c_attach: can't attach\n", unit); 394#endif 395 396 397/* 398 * PCI latency timer. 32 is a good value for 4 bus mastering slots, if 399 * you have more than four, then 16 would probably be a better value. 400 */ 401#ifndef BROOKTREE_DEF_LATENCY_VALUE 402#define BROOKTREE_DEF_LATENCY_VALUE 10 403#endif 404 latency = pci_read_config(dev, PCI_LATENCY_TIMER, 4); 405 latency = (latency >> 8) & 0xff; 406 if ( bootverbose ) { 407 if (latency) 408 printf("brooktree%d: PCI bus latency is", unit); 409 else 410 printf("brooktree%d: PCI bus latency was 0 changing to", 411 unit); 412 } 413 if ( !latency ) { 414 latency = BROOKTREE_DEF_LATENCY_VALUE; 415 pci_write_config(dev, PCI_LATENCY_TIMER, latency<<8, 4); 416 } 417 if ( bootverbose ) { 418 printf(" %d.\n", (int) latency); 419 } 420 421 /* read the pci device id and revision id */ 422 fun = pci_get_devid(dev); 423 rev = pci_get_revid(dev); 424 425 /* call the common attach code */ 426 common_bktr_attach( bktr, unit, fun, rev ); 427 428 make_dev(&bktr_cdevsw, unit, 0, 0, 0444, "bktr%d", unit); 429 make_dev(&bktr_cdevsw, unit+16, 0, 0, 0444, "tuner%d", unit); 430 make_dev(&bktr_cdevsw, unit+32, 0, 0, 0444, "vbi%d", unit); 431 432 return 0; 433 434fail: 435 return error; 436 437} 438 439/* 440 * the detach routine. 441 */ 442static int 443bktr_detach( device_t dev ) 444{ 445 struct bktr_softc *bktr = device_get_softc(dev); 446 447 /* Disable the brooktree device */ 448 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED); 449 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED); 450 451 /* FIXME - Free memory for RISC programs, grab buffer, vbi buffers */ 452 453 /* 454 * Deallocate resources. 455 */ 456 bus_teardown_intr(dev, bktr->res_irq, bktr->res_ih); 457 bus_release_resource(dev, SYS_RES_IRQ, 0, bktr->res_irq); 458 bus_release_resource(dev, SYS_RES_MEMORY, PCIR_MAPS, bktr->res_mem); 459 460 return 0; 461} 462 463/* 464 * the shutdown routine. 465 */ 466static int 467bktr_shutdown( device_t dev ) 468{ 469 struct bktr_softc *bktr = device_get_softc(dev); 470 471 /* Disable the brooktree device */ 472 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED); 473 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED); 474 475 return 0; 476} 477 478 479/* 480 * Special Memory Allocation 481 */ 482vm_offset_t 483get_bktr_mem( int unit, unsigned size ) 484{ 485 vm_offset_t addr = 0; 486 487 addr = vm_page_alloc_contig(size, 0, 0xffffffff, 1<<24); 488 if (addr == 0) 489 addr = vm_page_alloc_contig(size, 0, 0xffffffff, PAGE_SIZE); 490 if (addr == 0) { 491 printf("bktr%d: Unable to allocate %d bytes of memory.\n", 492 unit, size); 493 } 494 495 return( addr ); 496} 497 498 499/*--------------------------------------------------------- 500** 501** BrookTree 848 character device driver routines 502** 503**--------------------------------------------------------- 504*/ 505 506#define VIDEO_DEV 0x00 507#define TUNER_DEV 0x01 508#define VBI_DEV 0x02 509 510#define UNIT(x) ((x) & 0x0f) 511#define FUNCTION(x) (x >> 4) 512 513/* 514 * 515 */ 516int 517bktr_open( dev_t dev, int flags, int fmt, struct proc *p ) 518{ 519 bktr_ptr_t bktr; 520 int unit; 521 int result; 522 523 unit = UNIT( minor(dev) ); 524 525 /* Get the device data */ 526 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 527 if (bktr == NULL) { 528 /* the device is no longer valid/functioning */ 529 return (ENXIO); 530 } 531 532 if (!(bktr->flags & METEOR_INITALIZED)) /* device not found */ 533 return( ENXIO ); 534 535 /* Record that the device is now busy */ 536 device_busy(devclass_get_device(bktr_devclass, unit)); 537 538 539 if (bt848_card != -1) { 540 if ((bt848_card >> 8 == unit ) && 541 ( (bt848_card & 0xff) < Bt848_MAX_CARD )) { 542 if ( bktr->bt848_card != (bt848_card & 0xff) ) { 543 bktr->bt848_card = (bt848_card & 0xff); 544 probeCard(bktr, FALSE, unit); 545 } 546 } 547 } 548 549 if (bt848_tuner != -1) { 550 if ((bt848_tuner >> 8 == unit ) && 551 ( (bt848_tuner & 0xff) < Bt848_MAX_TUNER )) { 552 if ( bktr->bt848_tuner != (bt848_tuner & 0xff) ) { 553 bktr->bt848_tuner = (bt848_tuner & 0xff); 554 probeCard(bktr, FALSE, unit); 555 } 556 } 557 } 558 559 if (bt848_reverse_mute != -1) { 560 if ((bt848_reverse_mute >> 8) == unit ) { 561 bktr->reverse_mute = bt848_reverse_mute & 0xff; 562 } 563 } 564 565 if (bt848_slow_msp_audio != -1) { 566 if ((bt848_slow_msp_audio >> 8) == unit ) { 567 bktr->slow_msp_audio = (bt848_slow_msp_audio & 0xff); 568 } 569 } 570 571 switch ( FUNCTION( minor(dev) ) ) { 572 case VIDEO_DEV: 573 result = video_open( bktr ); 574 break; 575 case TUNER_DEV: 576 result = tuner_open( bktr ); 577 break; 578 case VBI_DEV: 579 result = vbi_open( bktr ); 580 break; 581 default: 582 result = ENXIO; 583 break; 584 } 585 586 /* If there was an error opening the device, undo the busy status */ 587 if (result != 0) 588 device_unbusy(devclass_get_device(bktr_devclass, unit)); 589 return( result ); 590} 591 592 593/* 594 * 595 */ 596int 597bktr_close( dev_t dev, int flags, int fmt, struct proc *p ) 598{ 599 bktr_ptr_t bktr; 600 int unit; 601 int result; 602 603 unit = UNIT( minor(dev) ); 604 605 /* Get the device data */ 606 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 607 if (bktr == NULL) { 608 /* the device is no longer valid/functioning */ 609 return (ENXIO); 610 } 611 612 switch ( FUNCTION( minor(dev) ) ) { 613 case VIDEO_DEV: 614 result = video_close( bktr ); 615 break; 616 case TUNER_DEV: 617 result = tuner_close( bktr ); 618 break; 619 case VBI_DEV: 620 result = vbi_close( bktr ); 621 break; 622 default: 623 return (ENXIO); 624 break; 625 } 626 627 device_unbusy(devclass_get_device(bktr_devclass, unit)); 628 return( result ); 629} 630 631 632/* 633 * 634 */ 635int 636bktr_read( dev_t dev, struct uio *uio, int ioflag ) 637{ 638 bktr_ptr_t bktr; 639 int unit; 640 641 unit = UNIT(minor(dev)); 642 643 /* Get the device data */ 644 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 645 if (bktr == NULL) { 646 /* the device is no longer valid/functioning */ 647 return (ENXIO); 648 } 649 650 switch ( FUNCTION( minor(dev) ) ) { 651 case VIDEO_DEV: 652 return( video_read( bktr, unit, dev, uio ) ); 653 case VBI_DEV: 654 return( vbi_read( bktr, uio, ioflag ) ); 655 } 656 return( ENXIO ); 657} 658 659 660/* 661 * 662 */ 663int 664bktr_write( dev_t dev, struct uio *uio, int ioflag ) 665{ 666 return( EINVAL ); /* XXX or ENXIO ? */ 667} 668 669 670/* 671 * 672 */ 673int 674bktr_ioctl( dev_t dev, ioctl_cmd_t cmd, caddr_t arg, int flag, struct proc* pr ) 675{ 676 bktr_ptr_t bktr; 677 int unit; 678 679 unit = UNIT(minor(dev)); 680 681 /* Get the device data */ 682 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 683 if (bktr == NULL) { 684 /* the device is no longer valid/functioning */ 685 return (ENXIO); 686 } 687 688 if (bktr->bigbuf == 0) /* no frame buffer allocated (ioctl failed) */ 689 return( ENOMEM ); 690 691 switch ( FUNCTION( minor(dev) ) ) { 692 case VIDEO_DEV: 693 return( video_ioctl( bktr, unit, cmd, arg, pr ) ); 694 case TUNER_DEV: 695 return( tuner_ioctl( bktr, unit, cmd, arg, pr ) ); 696 } 697 698 return( ENXIO ); 699} 700 701 702/* 703 * 704 */ 705int 706bktr_mmap( dev_t dev, vm_offset_t offset, int nprot ) 707{ 708 int unit; 709 bktr_ptr_t bktr; 710 711 unit = UNIT(minor(dev)); 712 713 if (FUNCTION(minor(dev)) > 0) /* only allow mmap on /dev/bktr[n] */ 714 return( -1 ); 715 716 /* Get the device data */ 717 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 718 if (bktr == NULL) { 719 /* the device is no longer valid/functioning */ 720 return (ENXIO); 721 } 722 723 if (nprot & PROT_EXEC) 724 return( -1 ); 725 726 if (offset < 0) 727 return( -1 ); 728 729 if (offset >= bktr->alloc_pages * PAGE_SIZE) 730 return( -1 ); 731 732 return( atop(vtophys(bktr->bigbuf) + offset) ); 733} 734 735int bktr_poll( dev_t dev, int events, struct proc *p) 736{ 737 int unit; 738 bktr_ptr_t bktr; 739 int revents = 0; 740 DECLARE_INTR_MASK(s); 741 742 unit = UNIT(minor(dev)); 743 744 /* Get the device data */ 745 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 746 if (bktr == NULL) { 747 /* the device is no longer valid/functioning */ 748 return (ENXIO); 749 } 750 751 DISABLE_INTR(s); 752 753 if (events & (POLLIN | POLLRDNORM)) { 754 755 switch ( FUNCTION( minor(dev) ) ) { 756 case VBI_DEV: 757 if(bktr->vbisize == 0) 758 selrecord(p, &bktr->vbi_select); 759 else 760 revents |= events & (POLLIN | POLLRDNORM); 761 break; 762 } 763 } 764 765 ENABLE_INTR(s); 766 767 return (revents); 768} 769 770#endif /* FreeBSD 4.x specific kernel interface routines */ 771 772/**********************************/ 773/* *** FreeBSD 2.2.x and 3.x *** */ 774/**********************************/ 775 776#if ((__FreeBSD__ == 2) || (__FreeBSD__ == 3)) 777 778static bktr_reg_t brooktree[ NBKTR ]; 779 780static const char* bktr_probe( pcici_t tag, pcidi_t type ); 781static void bktr_attach( pcici_t tag, int unit ); 782static void bktr_intr(void *arg) { common_bktr_intr(arg); } 783 784static u_long bktr_count; 785 786static struct pci_device bktr_device = { 787 "bktr", 788 bktr_probe, 789 bktr_attach, 790 &bktr_count 791}; 792 793DATA_SET (pcidevice_set, bktr_device); 794 795static d_open_t bktr_open; 796static d_close_t bktr_close; 797static d_read_t bktr_read; 798static d_write_t bktr_write; 799static d_ioctl_t bktr_ioctl; 800static d_mmap_t bktr_mmap; 801static d_poll_t bktr_poll; 802 803#define CDEV_MAJOR 92 804static struct cdevsw bktr_cdevsw = 805{ 806 bktr_open, bktr_close, bktr_read, bktr_write, 807 bktr_ioctl, nostop, nullreset, nodevtotty, 808 bktr_poll, bktr_mmap, NULL, "bktr", 809 NULL, -1 810}; 811 812static int bktr_devsw_installed; 813 814static void 815bktr_drvinit( void *unused ) 816{ 817 dev_t dev; 818 819 if ( ! bktr_devsw_installed ) { 820 dev = makedev(CDEV_MAJOR, 0); 821 cdevsw_add(&dev,&bktr_cdevsw, NULL); 822 bktr_devsw_installed = 1; 823 } 824} 825 826SYSINIT(bktrdev,SI_SUB_DRIVERS,SI_ORDER_MIDDLE+CDEV_MAJOR,bktr_drvinit,NULL) 827 828/* 829 * the boot time probe routine. 830 */ 831static const char* 832bktr_probe( pcici_t tag, pcidi_t type ) 833{ 834 unsigned int rev = pci_conf_read( tag, PCIR_REVID) & 0x000000ff; 835 836 switch (type) { 837 case BROOKTREE_848_PCI_ID: 838 if (rev == 0x12) return("BrookTree 848A"); 839 else return("BrookTree 848"); 840 case BROOKTREE_849_PCI_ID: 841 return("BrookTree 849A"); 842 case BROOKTREE_878_PCI_ID: 843 return("BrookTree 878"); 844 case BROOKTREE_879_PCI_ID: 845 return("BrookTree 879"); 846 }; 847 848 return ((char *)0); 849} 850 851/* 852 * the attach routine. 853 */ 854static void 855bktr_attach( pcici_t tag, int unit ) 856{ 857 bktr_ptr_t bktr; 858 u_long latency; 859 u_long fun; 860 unsigned int rev; 861 unsigned long base; 862#ifdef BROOKTREE_IRQ 863 u_long old_irq, new_irq; 864#endif 865 866 bktr = &brooktree[unit]; 867 868 if (unit >= NBKTR) { 869 printf("brooktree%d: attach: only %d units configured.\n", 870 unit, NBKTR); 871 printf("brooktree%d: attach: invalid unit number.\n", unit); 872 return; 873 } 874 875 /* build the device name for bktr_name() */ 876 snprintf(bktr->bktr_xname, sizeof(bktr->bktr_xname), "bktr%d",unit); 877 878 /* Enable Memory Mapping */ 879 fun = pci_conf_read(tag, PCI_COMMAND_STATUS_REG); 880 pci_conf_write(tag, PCI_COMMAND_STATUS_REG, fun | 2); 881 882 /* Enable Bus Mastering */ 883 fun = pci_conf_read(tag, PCI_COMMAND_STATUS_REG); 884 pci_conf_write(tag, PCI_COMMAND_STATUS_REG, fun | 4); 885 886 bktr->tag = tag; 887 888 889 /* 890 * Map control/status registers 891 */ 892 pci_map_mem( tag, PCI_MAP_REG_START, (vm_offset_t *) &base, 893 &bktr->phys_base ); 894#if (__FreeBSD_version >= 300000) 895 bktr->memt = I386_BUS_SPACE_MEM; /* XXX should use proper bus space */ 896 bktr->memh = (bus_space_handle_t)base; /* XXX functions here */ 897#endif 898 899 /* 900 * Disable the brooktree device 901 */ 902 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED); 903 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED); 904 905#ifdef BROOKTREE_IRQ /* from the configuration file */ 906 old_irq = pci_conf_read(tag, PCI_INTERRUPT_REG); 907 pci_conf_write(tag, PCI_INTERRUPT_REG, BROOKTREE_IRQ); 908 new_irq = pci_conf_read(tag, PCI_INTERRUPT_REG); 909 printf("bktr%d: attach: irq changed from %d to %d\n", 910 unit, (old_irq & 0xff), (new_irq & 0xff)); 911#endif 912 913 /* 914 * setup the interrupt handling routine 915 */ 916 pci_map_int(tag, bktr_intr, (void*) bktr, &tty_imask); 917 918 919 /* Update the Device Control Register */ 920 /* on Bt878 and Bt879 cards */ 921 fun = pci_conf_read(tag, 0x40); 922 fun = fun | 1; /* Enable writes to the sub-system vendor ID */ 923 924#if defined( BKTR_430_FX_MODE ) 925 if (bootverbose) printf("Using 430 FX chipset compatibilty mode\n"); 926 fun = fun | 2; /* Enable Intel 430 FX compatibility mode */ 927#endif 928 929#if defined( BKTR_SIS_VIA_MODE ) 930 if (bootverbose) printf("Using SiS/VIA chipset compatibilty mode\n"); 931 fun = fun | 4; /* Enable SiS/VIA compatibility mode (usefull for 932 OPTi chipset motherboards too */ 933#endif 934 pci_conf_write(tag, 0x40, fun); 935 936 937 /* XXX call bt848_i2c dependent attach() routine */ 938#if (NSMBUS > 0) 939 if (bt848_i2c_attach(unit, bktr, &bktr->i2c_sc)) 940 printf("bktr%d: i2c_attach: can't attach\n", unit); 941#endif 942 943 944/* 945 * PCI latency timer. 32 is a good value for 4 bus mastering slots, if 946 * you have more than four, then 16 would probably be a better value. 947 */ 948#ifndef BROOKTREE_DEF_LATENCY_VALUE 949#define BROOKTREE_DEF_LATENCY_VALUE 10 950#endif 951 latency = pci_conf_read(tag, PCI_LATENCY_TIMER); 952 latency = (latency >> 8) & 0xff; 953 if ( bootverbose ) { 954 if (latency) 955 printf("brooktree%d: PCI bus latency is", unit); 956 else 957 printf("brooktree%d: PCI bus latency was 0 changing to", 958 unit); 959 } 960 if ( !latency ) { 961 latency = BROOKTREE_DEF_LATENCY_VALUE; 962 pci_conf_write(tag, PCI_LATENCY_TIMER, latency<<8); 963 } 964 if ( bootverbose ) { 965 printf(" %d.\n", (int) latency); 966 } 967 968 969 /* read the pci device id and revision id */ 970 fun = pci_conf_read(tag, PCI_ID_REG); 971 rev = pci_conf_read(tag, PCIR_REVID) & 0x000000ff; 972 973 /* call the common attach code */ 974 common_bktr_attach( bktr, unit, fun, rev ); 975 976#ifdef DEVFS 977 /* XXX This just throw away the token, which should probably be fixed when 978 DEVFS is finally made really operational. */ 979 devfs_add_devswf(&bktr_cdevsw, unit, DV_CHR, 0, 0, 0444, "bktr%d", unit); 980 devfs_add_devswf(&bktr_cdevsw, unit+16, DV_CHR, 0, 0, 0444, "tuner%d", unit); 981 devfs_add_devswf(&bktr_cdevsw, unit+32, DV_CHR, 0, 0, 0444, "vbi%d", unit); 982#endif /* DEVFS */ 983 984} 985 986 987/* 988 * Special Memory Allocation 989 */ 990vm_offset_t 991get_bktr_mem( int unit, unsigned size ) 992{ 993 vm_offset_t addr = 0; 994 995 addr = vm_page_alloc_contig(size, 0x100000, 0xffffffff, 1<<24); 996 if (addr == 0) 997 addr = vm_page_alloc_contig(size, 0x100000, 0xffffffff, 998 PAGE_SIZE); 999 if (addr == 0) { 1000 printf("bktr%d: Unable to allocate %d bytes of memory.\n", 1001 unit, size); 1002 } 1003 1004 return( addr ); 1005} 1006 1007/*--------------------------------------------------------- 1008** 1009** BrookTree 848 character device driver routines 1010** 1011**--------------------------------------------------------- 1012*/ 1013 1014 1015#define VIDEO_DEV 0x00 1016#define TUNER_DEV 0x01 1017#define VBI_DEV 0x02 1018 1019#define UNIT(x) ((x) & 0x0f) 1020#define FUNCTION(x) ((x >> 4) & 0x0f) 1021 1022 1023/* 1024 * 1025 */ 1026int 1027bktr_open( dev_t dev, int flags, int fmt, struct proc *p ) 1028{ 1029 bktr_ptr_t bktr; 1030 int unit; 1031 1032 unit = UNIT( minor(dev) ); 1033 if (unit >= NBKTR) /* unit out of range */ 1034 return( ENXIO ); 1035 1036 bktr = &(brooktree[ unit ]); 1037 1038 if (!(bktr->flags & METEOR_INITALIZED)) /* device not found */ 1039 return( ENXIO ); 1040 1041 1042 if (bt848_card != -1) { 1043 if ((bt848_card >> 8 == unit ) && 1044 ( (bt848_card & 0xff) < Bt848_MAX_CARD )) { 1045 if ( bktr->bt848_card != (bt848_card & 0xff) ) { 1046 bktr->bt848_card = (bt848_card & 0xff); 1047 probeCard(bktr, FALSE, unit); 1048 } 1049 } 1050 } 1051 1052 if (bt848_tuner != -1) { 1053 if ((bt848_tuner >> 8 == unit ) && 1054 ( (bt848_tuner & 0xff) < Bt848_MAX_TUNER )) { 1055 if ( bktr->bt848_tuner != (bt848_tuner & 0xff) ) { 1056 bktr->bt848_tuner = (bt848_tuner & 0xff); 1057 probeCard(bktr, FALSE, unit); 1058 } 1059 } 1060 } 1061 1062 if (bt848_reverse_mute != -1) { 1063 if ((bt848_reverse_mute >> 8) == unit ) { 1064 bktr->reverse_mute = bt848_reverse_mute & 0xff; 1065 } 1066 } 1067 1068 if (bt848_slow_msp_audio != -1) { 1069 if ((bt848_slow_msp_audio >> 8) == unit ) { 1070 bktr->slow_msp_audio = (bt848_slow_msp_audio & 0xff); 1071 } 1072 } 1073 1074 switch ( FUNCTION( minor(dev) ) ) { 1075 case VIDEO_DEV: 1076 return( video_open( bktr ) ); 1077 case TUNER_DEV: 1078 return( tuner_open( bktr ) ); 1079 case VBI_DEV: 1080 return( vbi_open( bktr ) ); 1081 } 1082 return( ENXIO ); 1083} 1084 1085 1086/* 1087 * 1088 */ 1089int 1090bktr_close( dev_t dev, int flags, int fmt, struct proc *p ) 1091{ 1092 bktr_ptr_t bktr; 1093 int unit; 1094 1095 unit = UNIT( minor(dev) ); 1096 if (unit >= NBKTR) /* unit out of range */ 1097 return( ENXIO ); 1098 1099 bktr = &(brooktree[ unit ]); 1100 1101 switch ( FUNCTION( minor(dev) ) ) { 1102 case VIDEO_DEV: 1103 return( video_close( bktr ) ); 1104 case TUNER_DEV: 1105 return( tuner_close( bktr ) ); 1106 case VBI_DEV: 1107 return( vbi_close( bktr ) ); 1108 } 1109 1110 return( ENXIO ); 1111} 1112 1113/* 1114 * 1115 */ 1116int 1117bktr_read( dev_t dev, struct uio *uio, int ioflag ) 1118{ 1119 bktr_ptr_t bktr; 1120 int unit; 1121 1122 unit = UNIT(minor(dev)); 1123 if (unit >= NBKTR) /* unit out of range */ 1124 return( ENXIO ); 1125 1126 bktr = &(brooktree[unit]); 1127 1128 switch ( FUNCTION( minor(dev) ) ) { 1129 case VIDEO_DEV: 1130 return( video_read( bktr, unit, dev, uio ) ); 1131 case VBI_DEV: 1132 return( vbi_read( bktr, uio, ioflag ) ); 1133 } 1134 return( ENXIO ); 1135} 1136 1137 1138/* 1139 * 1140 */ 1141int 1142bktr_write( dev_t dev, struct uio *uio, int ioflag ) 1143{ 1144 return( EINVAL ); /* XXX or ENXIO ? */ 1145} 1146 1147/* 1148 * 1149 */ 1150int 1151bktr_ioctl( dev_t dev, ioctl_cmd_t cmd, caddr_t arg, int flag, struct proc* pr ) 1152{ 1153 bktr_ptr_t bktr; 1154 int unit; 1155 1156 unit = UNIT(minor(dev)); 1157 if (unit >= NBKTR) /* unit out of range */ 1158 return( ENXIO ); 1159 1160 bktr = &(brooktree[ unit ]); 1161 1162 if (bktr->bigbuf == 0) /* no frame buffer allocated (ioctl failed) */ 1163 return( ENOMEM ); 1164 1165 switch ( FUNCTION( minor(dev) ) ) { 1166 case VIDEO_DEV: 1167 return( video_ioctl( bktr, unit, cmd, arg, pr ) ); 1168 case TUNER_DEV: 1169 return( tuner_ioctl( bktr, unit, cmd, arg, pr ) ); 1170 } 1171 1172 return( ENXIO ); 1173} 1174 1175/* 1176 * bktr_mmap. 1177 * Note: 2.2.5/2.2.6/2.2.7/3.0 users must manually 1178 * edit the line below and change "vm_offset_t" to "int" 1179 */ 1180int bktr_mmap( dev_t dev, vm_offset_t offset, int nprot ) 1181 1182{ 1183 int unit; 1184 bktr_ptr_t bktr; 1185 1186 unit = UNIT(minor(dev)); 1187 1188 if (unit >= NBKTR || FUNCTION(minor(dev)) > 0) 1189 return( -1 ); 1190 1191 bktr = &(brooktree[ unit ]); 1192 1193 if (nprot & PROT_EXEC) 1194 return( -1 ); 1195 1196 if (offset < 0) 1197 return( -1 ); 1198 1199 if (offset >= bktr->alloc_pages * PAGE_SIZE) 1200 return( -1 ); 1201 1202 return( i386_btop(vtophys(bktr->bigbuf) + offset) ); 1203} 1204 1205int bktr_poll( dev_t dev, int events, struct proc *p) 1206{ 1207 int unit; 1208 bktr_ptr_t bktr; 1209 int revents = 0; 1210 1211 unit = UNIT(minor(dev)); 1212 1213 if (unit >= NBKTR) 1214 return( -1 ); 1215 1216 bktr = &(brooktree[ unit ]); 1217 1218 disable_intr(); 1219 1220 if (events & (POLLIN | POLLRDNORM)) { 1221 1222 switch ( FUNCTION( minor(dev) ) ) { 1223 case VBI_DEV: 1224 if(bktr->vbisize == 0) 1225 selrecord(p, &bktr->vbi_select); 1226 else 1227 revents |= events & (POLLIN | POLLRDNORM); 1228 break; 1229 } 1230 } 1231 1232 enable_intr(); 1233 1234 return (revents); 1235} 1236 1237 1238#endif /* FreeBSD 2.2.x and 3.x specific kernel interface routines */ 1239 1240 1241/*****************/ 1242/* *** BSDI *** */ 1243/*****************/ 1244 1245#if defined(__bsdi__) 1246#endif /* __bsdi__ BSDI specific kernel interface routines */ 1247 1248 1249/*****************************/ 1250/* *** OpenBSD / NetBSD *** */ 1251/*****************************/ 1252#if defined(__NetBSD__) || defined(__OpenBSD__) 1253 1254#define IPL_VIDEO IPL_BIO /* XXX */ 1255 1256static int bktr_intr(void *arg) { return common_bktr_intr(arg); } 1257 1258#define bktr_open bktropen 1259#define bktr_close bktrclose 1260#define bktr_read bktrread 1261#define bktr_write bktrwrite 1262#define bktr_ioctl bktrioctl 1263#define bktr_mmap bktrmmap 1264 1265vm_offset_t vm_page_alloc_contig(vm_offset_t, vm_offset_t, 1266 vm_offset_t, vm_offset_t); 1267 1268#if defined(__OpenBSD__) 1269static int bktr_probe __P((struct device *, void *, void *)); 1270#else 1271static int bktr_probe __P((struct device *, struct cfdata *, void *)); 1272#endif 1273static void bktr_attach __P((struct device *, struct device *, void *)); 1274 1275struct cfattach bktr_ca = { 1276 sizeof(struct bktr_softc), bktr_probe, bktr_attach 1277}; 1278 1279#if defined(__NetBSD__) 1280extern struct cfdriver bktr_cd; 1281#else 1282struct cfdriver bktr_cd = { 1283 NULL, "bktr", DV_DULL 1284}; 1285#endif 1286 1287int 1288bktr_probe(parent, match, aux) 1289 struct device *parent; 1290#if defined(__OpenBSD__) 1291 void *match; 1292#else 1293 struct cfdata *match; 1294#endif 1295 void *aux; 1296{ 1297 struct pci_attach_args *pa = aux; 1298 1299 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_BROOKTREE && 1300 (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT848 || 1301 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT849 || 1302 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT878 || 1303 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT879)) 1304 return 1; 1305 1306 return 0; 1307} 1308 1309 1310/* 1311 * the attach routine. 1312 */ 1313static void 1314bktr_attach(struct device *parent, struct device *self, void *aux) 1315{ 1316 bktr_ptr_t bktr; 1317 u_long latency; 1318 u_long fun; 1319 unsigned int rev; 1320 1321#if defined(__OpenBSD__) 1322 struct pci_attach_args *pa = aux; 1323 pci_chipset_tag_t pc = pa->pa_pc; 1324 1325 pci_intr_handle_t ih; 1326 const char *intrstr; 1327 int retval; 1328 int unit; 1329 1330 bktr = (bktr_ptr_t)self; 1331 unit = bktr->bktr_dev.dv_unit; 1332 1333 bktr->pc = pa->pa_pc; 1334 bktr->tag = pa->pa_tag; 1335 bktr->dmat = pa->pa_dmat; 1336 1337 /* 1338 * map memory 1339 */ 1340 bktr->memt = pa->pa_memt; 1341 retval = pci_mem_find(pc, pa->pa_tag, PCI_MAPREG_START, 1342 &bktr->phys_base, &bktr->obmemsz, NULL); 1343 if (!retval) 1344 retval = bus_space_map(pa->pa_memt, bktr->phys_base, 1345 bktr->obmemsz, 0, &bktr->memh); 1346 if (retval) { 1347 printf(": couldn't map memory\n"); 1348 return; 1349 } 1350 1351 1352 /* 1353 * map interrupt 1354 */ 1355 if (pci_intr_map(pa->pa_pc, pa->pa_intrtag, pa->pa_intrpin, 1356 pa->pa_intrline, &ih)) { 1357 printf(": couldn't map interrupt\n"); 1358 return; 1359 } 1360 intrstr = pci_intr_string(pa->pa_pc, ih); 1361 1362 bktr->ih = pci_intr_establish(pa->pa_pc, ih, IPL_VIDEO, 1363 bktr_intr, bktr, bktr->bktr_dev.dv_xname); 1364 if (bktr->ih == NULL) { 1365 printf(": couldn't establish interrupt"); 1366 if (intrstr != NULL) 1367 printf(" at %s", intrstr); 1368 printf("\n"); 1369 return; 1370 } 1371 1372 if (intrstr != NULL) 1373 printf(": %s\n", intrstr); 1374#endif /* __OpenBSD__ */ 1375 1376#if defined(__NetBSD__) 1377 struct pci_attach_args *pa = aux; 1378 pci_intr_handle_t ih; 1379 const char *intrstr; 1380 int retval; 1381 int unit; 1382 1383 bktr = (bktr_ptr_t)self; 1384 unit = bktr->bktr_dev.dv_unit; 1385 bktr->dmat = pa->pa_dmat; 1386 1387 printf("\n"); 1388 1389 /* 1390 * map memory 1391 */ 1392 retval = pci_mapreg_map(pa, PCI_MAPREG_START, 1393 PCI_MAPREG_TYPE_MEM 1394 | PCI_MAPREG_MEM_TYPE_32BIT, 0, 1395 &bktr->memt, &bktr->memh, NULL, 1396 &bktr->obmemsz); 1397 DPR(("pci_mapreg_map: memt %x, memh %x, size %x\n", 1398 bktr->memt, (u_int)bktr->memh, (u_int)bktr->obmemsz)); 1399 if (retval) { 1400 printf("%s: couldn't map memory\n", bktr_name(bktr)); 1401 return; 1402 } 1403 1404 /* 1405 * Disable the brooktree device 1406 */ 1407 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED); 1408 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED); 1409 1410 /* 1411 * map interrupt 1412 */ 1413 if (pci_intr_map(pa->pa_pc, pa->pa_intrtag, pa->pa_intrpin, 1414 pa->pa_intrline, &ih)) { 1415 printf("%s: couldn't map interrupt\n", 1416 bktr_name(bktr)); 1417 return; 1418 } 1419 intrstr = pci_intr_string(pa->pa_pc, ih); 1420 bktr->ih = pci_intr_establish(pa->pa_pc, ih, IPL_VIDEO, 1421 bktr_intr, bktr); 1422 if (bktr->ih == NULL) { 1423 printf("%s: couldn't establish interrupt", 1424 bktr_name(bktr)); 1425 if (intrstr != NULL) 1426 printf(" at %s", intrstr); 1427 printf("\n"); 1428 return; 1429 } 1430 if (intrstr != NULL) 1431 printf("%s: interrupting at %s\n", bktr_name(bktr), 1432 intrstr); 1433#endif /* __NetBSD__ */ 1434 1435/* 1436 * PCI latency timer. 32 is a good value for 4 bus mastering slots, if 1437 * you have more than four, then 16 would probably be a better value. 1438 */ 1439#ifndef BROOKTREE_DEF_LATENCY_VALUE 1440#define BROOKTREE_DEF_LATENCY_VALUE 10 1441#endif 1442 latency = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_LATENCY_TIMER); 1443 latency = (latency >> 8) & 0xff; 1444 1445 if (!latency) { 1446 if (bootverbose) { 1447 printf("%s: PCI bus latency was 0 changing to %d", 1448 bktr_name(bktr), BROOKTREE_DEF_LATENCY_VALUE); 1449 } 1450 latency = BROOKTREE_DEF_LATENCY_VALUE; 1451 pci_conf_write(pa->pa_pc, pa->pa_tag, 1452 PCI_LATENCY_TIMER, latency<<8); 1453 } 1454 1455 1456 /* Enabled Bus Master 1457 XXX: check if all old DMA is stopped first (e.g. after warm 1458 boot) */ 1459 fun = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); 1460 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, 1461 fun | PCI_COMMAND_MASTER_ENABLE); 1462 1463 /* read the pci id and determine the card type */ 1464 fun = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_ID_REG); 1465 rev = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_CLASS_REG) & 0x000000ff; 1466 1467 common_bktr_attach(bktr, unit, fun, rev); 1468} 1469 1470 1471/* 1472 * Special Memory Allocation 1473 */ 1474vm_offset_t 1475get_bktr_mem(bktr, dmapp, size) 1476 bktr_ptr_t bktr; 1477 bus_dmamap_t *dmapp; 1478 unsigned int size; 1479{ 1480 bus_dma_tag_t dmat = bktr->dmat; 1481 bus_dma_segment_t seg; 1482 bus_size_t align; 1483 int rseg; 1484 caddr_t kva; 1485 1486 /* 1487 * Allocate a DMA area 1488 */ 1489 align = 1 << 24; 1490 if (bus_dmamem_alloc(dmat, size, align, 0, &seg, 1, 1491 &rseg, BUS_DMA_NOWAIT)) { 1492 align = PAGE_SIZE; 1493 if (bus_dmamem_alloc(dmat, size, align, 0, &seg, 1, 1494 &rseg, BUS_DMA_NOWAIT)) { 1495 printf("%s: Unable to dmamem_alloc of %d bytes\n", 1496 bktr_name(bktr), size); 1497 return 0; 1498 } 1499 } 1500 if (bus_dmamem_map(dmat, &seg, rseg, size, 1501 &kva, BUS_DMA_NOWAIT|BUS_DMA_COHERENT)) { 1502 printf("%s: Unable to dmamem_map of %d bytes\n", 1503 bktr_name(bktr), size); 1504 bus_dmamem_free(dmat, &seg, rseg); 1505 return 0; 1506 } 1507#ifdef __OpenBSD__ 1508 bktr->dm_mapsize = size; 1509#endif 1510 /* 1511 * Create and locd the DMA map for the DMA area 1512 */ 1513 if (bus_dmamap_create(dmat, size, 1, size, 0, BUS_DMA_NOWAIT, dmapp)) { 1514 printf("%s: Unable to dmamap_create of %d bytes\n", 1515 bktr_name(bktr), size); 1516 bus_dmamem_unmap(dmat, kva, size); 1517 bus_dmamem_free(dmat, &seg, rseg); 1518 return 0; 1519 } 1520 if (bus_dmamap_load(dmat, *dmapp, kva, size, NULL, BUS_DMA_NOWAIT)) { 1521 printf("%s: Unable to dmamap_load of %d bytes\n", 1522 bktr_name(bktr), size); 1523 bus_dmamem_unmap(dmat, kva, size); 1524 bus_dmamem_free(dmat, &seg, rseg); 1525 bus_dmamap_destroy(dmat, *dmapp); 1526 return 0; 1527 } 1528 return (vm_offset_t)kva; 1529} 1530 1531void 1532free_bktr_mem(bktr, dmap, kva) 1533 bktr_ptr_t bktr; 1534 bus_dmamap_t dmap; 1535 vm_offset_t kva; 1536{ 1537 bus_dma_tag_t dmat = bktr->dmat; 1538 1539#ifdef __NetBSD__ 1540 bus_dmamem_unmap(dmat, (caddr_t)kva, dmap->dm_mapsize); 1541#else 1542 bus_dmamem_unmap(dmat, (caddr_t)kva, bktr->dm_mapsize); 1543#endif 1544 bus_dmamem_free(dmat, dmap->dm_segs, 1); 1545 bus_dmamap_destroy(dmat, dmap); 1546} 1547 1548 1549/*--------------------------------------------------------- 1550** 1551** BrookTree 848 character device driver routines 1552** 1553**--------------------------------------------------------- 1554*/ 1555 1556 1557#define VIDEO_DEV 0x00 1558#define TUNER_DEV 0x01 1559#define VBI_DEV 0x02 1560 1561#define UNIT(x) (minor((x) & 0x0f)) 1562#define FUNCTION(x) (minor((x >> 4) & 0x0f)) 1563 1564/* 1565 * 1566 */ 1567int 1568bktr_open(dev_t dev, int flags, int fmt, struct proc *p) 1569{ 1570 bktr_ptr_t bktr; 1571 int unit; 1572 1573 unit = UNIT(dev); 1574 1575 /* unit out of range */ 1576 if ((unit > bktr_cd.cd_ndevs) || (bktr_cd.cd_devs[unit] == NULL)) 1577 return(ENXIO); 1578 1579 bktr = bktr_cd.cd_devs[unit]; 1580 1581 if (!(bktr->flags & METEOR_INITALIZED)) /* device not found */ 1582 return(ENXIO); 1583 1584 switch (FUNCTION(dev)) { 1585 case VIDEO_DEV: 1586 return(video_open(bktr)); 1587 case TUNER_DEV: 1588 return(tuner_open(bktr)); 1589 case VBI_DEV: 1590 return(vbi_open(bktr)); 1591 } 1592 1593 return(ENXIO); 1594} 1595 1596 1597/* 1598 * 1599 */ 1600int 1601bktr_close(dev_t dev, int flags, int fmt, struct proc *p) 1602{ 1603 bktr_ptr_t bktr; 1604 int unit; 1605 1606 unit = UNIT(dev); 1607 1608 bktr = bktr_cd.cd_devs[unit]; 1609 1610 switch (FUNCTION(dev)) { 1611 case VIDEO_DEV: 1612 return(video_close(bktr)); 1613 case TUNER_DEV: 1614 return(tuner_close(bktr)); 1615 case VBI_DEV: 1616 return(vbi_close(bktr)); 1617 } 1618 1619 return(ENXIO); 1620} 1621 1622/* 1623 * 1624 */ 1625int 1626bktr_read(dev_t dev, struct uio *uio, int ioflag) 1627{ 1628 bktr_ptr_t bktr; 1629 int unit; 1630 1631 unit = UNIT(dev); 1632 1633 bktr = bktr_cd.cd_devs[unit]; 1634 1635 switch (FUNCTION(dev)) { 1636 case VIDEO_DEV: 1637 return(video_read(bktr, unit, dev, uio)); 1638 case VBI_DEV: 1639 return(vbi_read(bktr, uio, ioflag)); 1640 } 1641 1642 return(ENXIO); 1643} 1644 1645 1646/* 1647 * 1648 */ 1649int 1650bktr_write(dev_t dev, struct uio *uio, int ioflag) 1651{ 1652 /* operation not supported */ 1653 return(EOPNOTSUPP); 1654} 1655 1656/* 1657 * 1658 */ 1659int 1660bktr_ioctl(dev_t dev, ioctl_cmd_t cmd, caddr_t arg, int flag, struct proc* pr) 1661{ 1662 bktr_ptr_t bktr; 1663 int unit; 1664 1665 unit = UNIT(dev); 1666 1667 bktr = bktr_cd.cd_devs[unit]; 1668 1669 if (bktr->bigbuf == 0) /* no frame buffer allocated (ioctl failed) */ 1670 return(ENOMEM); 1671 1672 switch (FUNCTION(dev)) { 1673 case VIDEO_DEV: 1674 return(video_ioctl(bktr, unit, cmd, arg, pr)); 1675 case TUNER_DEV: 1676 return(tuner_ioctl(bktr, unit, cmd, arg, pr)); 1677 } 1678 1679 return(ENXIO); 1680} 1681 1682/* 1683 * 1684 */ 1685paddr_t 1686bktr_mmap(dev_t dev, off_t offset, int nprot) 1687{ 1688 int unit; 1689 bktr_ptr_t bktr; 1690 1691 unit = UNIT(dev); 1692 1693 if (FUNCTION(dev) > 0) /* only allow mmap on /dev/bktr[n] */ 1694 return(-1); 1695 1696 bktr = bktr_cd.cd_devs[unit]; 1697 1698 if ((vaddr_t)offset < 0) 1699 return(-1); 1700 1701 if ((vaddr_t)offset >= bktr->alloc_pages * PAGE_SIZE) 1702 return(-1); 1703 1704#ifdef __NetBSD__ 1705 return (bus_dmamem_mmap(bktr->dmat, bktr->dm_mem->dm_segs, 1, 1706 (vaddr_t)offset, nprot, BUS_DMA_WAITOK)); 1707#else 1708 return(i386_btop(vtophys(bktr->bigbuf) + offset)); 1709#endif 1710} 1711 1712#endif /* __NetBSD__ || __OpenBSD__ */ 1713