bktr_os.c revision 65692
1/* $FreeBSD: head/sys/dev/bktr/bktr_os.c 65692 2000-09-10 14:34:08Z 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); 250 251 252/* 253 * the boot time probe routine. 254 */ 255static int 256bktr_probe( device_t dev ) 257{ 258 unsigned int type = pci_get_devid(dev); 259 unsigned int rev = pci_get_revid(dev); 260 261 switch (type) { 262 case BROOKTREE_848_PCI_ID: 263 if (rev == 0x12) device_set_desc(dev, "BrookTree 848A"); 264 else device_set_desc(dev, "BrookTree 848"); 265 return 0; 266 case BROOKTREE_849_PCI_ID: 267 device_set_desc(dev, "BrookTree 849A"); 268 return 0; 269 case BROOKTREE_878_PCI_ID: 270 device_set_desc(dev, "BrookTree 878"); 271 return 0; 272 case BROOKTREE_879_PCI_ID: 273 device_set_desc(dev, "BrookTree 879"); 274 return 0; 275 }; 276 277 return ENXIO; 278} 279 280 281/* 282 * the attach routine. 283 */ 284static int 285bktr_attach( device_t dev ) 286{ 287 u_long latency; 288 u_long fun; 289 u_long val; 290 unsigned int rev; 291 unsigned int unit; 292 int error = 0; 293#ifdef BROOKTREE_IRQ 294 u_long old_irq, new_irq; 295#endif 296 297 struct bktr_softc *bktr = device_get_softc(dev); 298 299 unit = device_get_unit(dev); 300 301 /* build the device name for bktr_name() */ 302 snprintf(bktr->bktr_xname, sizeof(bktr->bktr_xname), "bktr%d",unit); 303 304 /* 305 * Enable bus mastering and Memory Mapped device 306 */ 307 val = pci_read_config(dev, PCIR_COMMAND, 4); 308 val |= (PCIM_CMD_MEMEN|PCIM_CMD_BUSMASTEREN); 309 pci_write_config(dev, PCIR_COMMAND, val, 4); 310 311 /* 312 * Map control/status registers. 313 */ 314 bktr->mem_rid = PCIR_MAPS; 315 bktr->res_mem = bus_alloc_resource(dev, SYS_RES_MEMORY, &bktr->mem_rid, 316 0, ~0, 1, RF_ACTIVE); 317 318 319 if (!bktr->res_mem) { 320 device_printf(dev, "could not map memory\n"); 321 error = ENXIO; 322 goto fail; 323 } 324 bktr->memt = rman_get_bustag(bktr->res_mem); 325 bktr->memh = rman_get_bushandle(bktr->res_mem); 326 327 328 /* 329 * Disable the brooktree device 330 */ 331 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED); 332 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED); 333 334 335#ifdef BROOKTREE_IRQ /* from the configuration file */ 336 old_irq = pci_conf_read(tag, PCI_INTERRUPT_REG); 337 pci_conf_write(tag, PCI_INTERRUPT_REG, BROOKTREE_IRQ); 338 new_irq = pci_conf_read(tag, PCI_INTERRUPT_REG); 339 printf("bktr%d: attach: irq changed from %d to %d\n", 340 unit, (old_irq & 0xff), (new_irq & 0xff)); 341#endif 342 343 /* 344 * Allocate our interrupt. 345 */ 346 bktr->irq_rid = 0; 347 bktr->res_irq = bus_alloc_resource(dev, SYS_RES_IRQ, &bktr->irq_rid, 348 0, ~0, 1, RF_SHAREABLE | RF_ACTIVE); 349 if (bktr->res_irq == NULL) { 350 device_printf(dev, "could not map interrupt\n"); 351 error = ENXIO; 352 goto fail; 353 } 354 355 error = bus_setup_intr(dev, bktr->res_irq, INTR_TYPE_TTY, 356 bktr_intr, bktr, &bktr->res_ih); 357 if (error) { 358 device_printf(dev, "could not setup irq\n"); 359 goto fail; 360 361 } 362 363 364 /* Update the Device Control Register */ 365 /* on Bt878 and Bt879 cards */ 366 fun = pci_read_config( dev, 0x40, 2); 367 fun = fun | 1; /* Enable writes to the sub-system vendor ID */ 368 369#if defined( BKTR_430_FX_MODE ) 370 if (bootverbose) printf("Using 430 FX chipset compatibilty mode\n"); 371 fun = fun | 2; /* Enable Intel 430 FX compatibility mode */ 372#endif 373 374#if defined( BKTR_SIS_VIA_MODE ) 375 if (bootverbose) printf("Using SiS/VIA chipset compatibilty mode\n"); 376 fun = fun | 4; /* Enable SiS/VIA compatibility mode (usefull for 377 OPTi chipset motherboards too */ 378#endif 379 pci_write_config(dev, 0x40, fun, 2); 380 381 382 /* XXX call bt848_i2c dependent attach() routine */ 383#if defined(BKTR_USE_FREEBSD_SMBUS) 384 if (bt848_i2c_attach(unit, bktr, &bktr->i2c_sc)) 385 printf("bktr%d: i2c_attach: can't attach\n", unit); 386#endif 387 388 389/* 390 * PCI latency timer. 32 is a good value for 4 bus mastering slots, if 391 * you have more than four, then 16 would probably be a better value. 392 */ 393#ifndef BROOKTREE_DEF_LATENCY_VALUE 394#define BROOKTREE_DEF_LATENCY_VALUE 10 395#endif 396 latency = pci_read_config(dev, PCI_LATENCY_TIMER, 4); 397 latency = (latency >> 8) & 0xff; 398 if ( bootverbose ) { 399 if (latency) 400 printf("brooktree%d: PCI bus latency is", unit); 401 else 402 printf("brooktree%d: PCI bus latency was 0 changing to", 403 unit); 404 } 405 if ( !latency ) { 406 latency = BROOKTREE_DEF_LATENCY_VALUE; 407 pci_write_config(dev, PCI_LATENCY_TIMER, latency<<8, 4); 408 } 409 if ( bootverbose ) { 410 printf(" %d.\n", (int) latency); 411 } 412 413 /* read the pci device id and revision id */ 414 fun = pci_get_devid(dev); 415 rev = pci_get_revid(dev); 416 417 /* call the common attach code */ 418 common_bktr_attach( bktr, unit, fun, rev ); 419 420 make_dev(&bktr_cdevsw, unit, 0, 0, 0444, "bktr%d", unit); 421 make_dev(&bktr_cdevsw, unit+16, 0, 0, 0444, "tuner%d", unit); 422 make_dev(&bktr_cdevsw, unit+32, 0, 0, 0444, "vbi%d", unit); 423 424 return 0; 425 426fail: 427 if (bktr->res_irq) 428 bus_release_resource(dev, SYS_RES_IRQ, bktr->irq_rid, bktr->res_irq); 429 if (bktr->res_mem) 430 bus_release_resource(dev, SYS_RES_IRQ, bktr->mem_rid, bktr->res_mem); 431 return error; 432 433} 434 435/* 436 * the detach routine. 437 */ 438static int 439bktr_detach( device_t dev ) 440{ 441 struct bktr_softc *bktr = device_get_softc(dev); 442 443 /* Disable the brooktree device */ 444 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED); 445 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED); 446 447 /* FIXME - Free memory for RISC programs, grab buffer, vbi buffers */ 448 449 /* 450 * Deallocate resources. 451 */ 452 bus_teardown_intr(dev, bktr->res_irq, bktr->res_ih); 453 bus_release_resource(dev, SYS_RES_IRQ, bktr->irq_rid, bktr->res_irq); 454 bus_release_resource(dev, SYS_RES_MEMORY, bktr->mem_rid, bktr->res_mem); 455 456 return 0; 457} 458 459/* 460 * the shutdown routine. 461 */ 462static int 463bktr_shutdown( device_t dev ) 464{ 465 struct bktr_softc *bktr = device_get_softc(dev); 466 467 /* Disable the brooktree device */ 468 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED); 469 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED); 470 471 return 0; 472} 473 474 475/* 476 * Special Memory Allocation 477 */ 478vm_offset_t 479get_bktr_mem( int unit, unsigned size ) 480{ 481 vm_offset_t addr = 0; 482 483 addr = vm_page_alloc_contig(size, 0, 0xffffffff, 1<<24); 484 if (addr == 0) 485 addr = vm_page_alloc_contig(size, 0, 0xffffffff, PAGE_SIZE); 486 if (addr == 0) { 487 printf("bktr%d: Unable to allocate %d bytes of memory.\n", 488 unit, size); 489 } 490 491 return( addr ); 492} 493 494 495/*--------------------------------------------------------- 496** 497** BrookTree 848 character device driver routines 498** 499**--------------------------------------------------------- 500*/ 501 502#define VIDEO_DEV 0x00 503#define TUNER_DEV 0x01 504#define VBI_DEV 0x02 505 506#define UNIT(x) ((x) & 0x0f) 507#define FUNCTION(x) (x >> 4) 508 509/* 510 * 511 */ 512int 513bktr_open( dev_t dev, int flags, int fmt, struct proc *p ) 514{ 515 bktr_ptr_t bktr; 516 int unit; 517 int result; 518 519 unit = UNIT( minor(dev) ); 520 521 /* Get the device data */ 522 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 523 if (bktr == NULL) { 524 /* the device is no longer valid/functioning */ 525 return (ENXIO); 526 } 527 528 if (!(bktr->flags & METEOR_INITALIZED)) /* device not found */ 529 return( ENXIO ); 530 531 /* Record that the device is now busy */ 532 device_busy(devclass_get_device(bktr_devclass, unit)); 533 534 535 if (bt848_card != -1) { 536 if ((bt848_card >> 8 == unit ) && 537 ( (bt848_card & 0xff) < Bt848_MAX_CARD )) { 538 if ( bktr->bt848_card != (bt848_card & 0xff) ) { 539 bktr->bt848_card = (bt848_card & 0xff); 540 probeCard(bktr, FALSE, unit); 541 } 542 } 543 } 544 545 if (bt848_tuner != -1) { 546 if ((bt848_tuner >> 8 == unit ) && 547 ( (bt848_tuner & 0xff) < Bt848_MAX_TUNER )) { 548 if ( bktr->bt848_tuner != (bt848_tuner & 0xff) ) { 549 bktr->bt848_tuner = (bt848_tuner & 0xff); 550 probeCard(bktr, FALSE, unit); 551 } 552 } 553 } 554 555 if (bt848_reverse_mute != -1) { 556 if ((bt848_reverse_mute >> 8) == unit ) { 557 bktr->reverse_mute = bt848_reverse_mute & 0xff; 558 } 559 } 560 561 if (bt848_slow_msp_audio != -1) { 562 if ((bt848_slow_msp_audio >> 8) == unit ) { 563 bktr->slow_msp_audio = (bt848_slow_msp_audio & 0xff); 564 } 565 } 566 567 switch ( FUNCTION( minor(dev) ) ) { 568 case VIDEO_DEV: 569 result = video_open( bktr ); 570 break; 571 case TUNER_DEV: 572 result = tuner_open( bktr ); 573 break; 574 case VBI_DEV: 575 result = vbi_open( bktr ); 576 break; 577 default: 578 result = ENXIO; 579 break; 580 } 581 582 /* If there was an error opening the device, undo the busy status */ 583 if (result != 0) 584 device_unbusy(devclass_get_device(bktr_devclass, unit)); 585 return( result ); 586} 587 588 589/* 590 * 591 */ 592int 593bktr_close( dev_t dev, int flags, int fmt, struct proc *p ) 594{ 595 bktr_ptr_t bktr; 596 int unit; 597 int result; 598 599 unit = UNIT( minor(dev) ); 600 601 /* Get the device data */ 602 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 603 if (bktr == NULL) { 604 /* the device is no longer valid/functioning */ 605 return (ENXIO); 606 } 607 608 switch ( FUNCTION( minor(dev) ) ) { 609 case VIDEO_DEV: 610 result = video_close( bktr ); 611 break; 612 case TUNER_DEV: 613 result = tuner_close( bktr ); 614 break; 615 case VBI_DEV: 616 result = vbi_close( bktr ); 617 break; 618 default: 619 return (ENXIO); 620 break; 621 } 622 623 device_unbusy(devclass_get_device(bktr_devclass, unit)); 624 return( result ); 625} 626 627 628/* 629 * 630 */ 631int 632bktr_read( dev_t dev, struct uio *uio, int ioflag ) 633{ 634 bktr_ptr_t bktr; 635 int unit; 636 637 unit = UNIT(minor(dev)); 638 639 /* Get the device data */ 640 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 641 if (bktr == NULL) { 642 /* the device is no longer valid/functioning */ 643 return (ENXIO); 644 } 645 646 switch ( FUNCTION( minor(dev) ) ) { 647 case VIDEO_DEV: 648 return( video_read( bktr, unit, dev, uio ) ); 649 case VBI_DEV: 650 return( vbi_read( bktr, uio, ioflag ) ); 651 } 652 return( ENXIO ); 653} 654 655 656/* 657 * 658 */ 659int 660bktr_write( dev_t dev, struct uio *uio, int ioflag ) 661{ 662 return( EINVAL ); /* XXX or ENXIO ? */ 663} 664 665 666/* 667 * 668 */ 669int 670bktr_ioctl( dev_t dev, ioctl_cmd_t cmd, caddr_t arg, int flag, struct proc* pr ) 671{ 672 bktr_ptr_t bktr; 673 int unit; 674 675 unit = UNIT(minor(dev)); 676 677 /* Get the device data */ 678 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 679 if (bktr == NULL) { 680 /* the device is no longer valid/functioning */ 681 return (ENXIO); 682 } 683 684 if (bktr->bigbuf == 0) /* no frame buffer allocated (ioctl failed) */ 685 return( ENOMEM ); 686 687 switch ( FUNCTION( minor(dev) ) ) { 688 case VIDEO_DEV: 689 return( video_ioctl( bktr, unit, cmd, arg, pr ) ); 690 case TUNER_DEV: 691 return( tuner_ioctl( bktr, unit, cmd, arg, pr ) ); 692 } 693 694 return( ENXIO ); 695} 696 697 698/* 699 * 700 */ 701int 702bktr_mmap( dev_t dev, vm_offset_t offset, int nprot ) 703{ 704 int unit; 705 bktr_ptr_t bktr; 706 707 unit = UNIT(minor(dev)); 708 709 if (FUNCTION(minor(dev)) > 0) /* only allow mmap on /dev/bktr[n] */ 710 return( -1 ); 711 712 /* Get the device data */ 713 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 714 if (bktr == NULL) { 715 /* the device is no longer valid/functioning */ 716 return (ENXIO); 717 } 718 719 if (nprot & PROT_EXEC) 720 return( -1 ); 721 722 if (offset < 0) 723 return( -1 ); 724 725 if (offset >= bktr->alloc_pages * PAGE_SIZE) 726 return( -1 ); 727 728 return( atop(vtophys(bktr->bigbuf) + offset) ); 729} 730 731int bktr_poll( dev_t dev, int events, struct proc *p) 732{ 733 int unit; 734 bktr_ptr_t bktr; 735 int revents = 0; 736 DECLARE_INTR_MASK(s); 737 738 unit = UNIT(minor(dev)); 739 740 /* Get the device data */ 741 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 742 if (bktr == NULL) { 743 /* the device is no longer valid/functioning */ 744 return (ENXIO); 745 } 746 747 DISABLE_INTR(s); 748 749 if (events & (POLLIN | POLLRDNORM)) { 750 751 switch ( FUNCTION( minor(dev) ) ) { 752 case VBI_DEV: 753 if(bktr->vbisize == 0) 754 selrecord(p, &bktr->vbi_select); 755 else 756 revents |= events & (POLLIN | POLLRDNORM); 757 break; 758 } 759 } 760 761 ENABLE_INTR(s); 762 763 return (revents); 764} 765 766#endif /* FreeBSD 4.x specific kernel interface routines */ 767 768/**********************************/ 769/* *** FreeBSD 2.2.x and 3.x *** */ 770/**********************************/ 771 772#if ((__FreeBSD__ == 2) || (__FreeBSD__ == 3)) 773 774static bktr_reg_t brooktree[ NBKTR ]; 775 776static const char* bktr_probe( pcici_t tag, pcidi_t type ); 777static void bktr_attach( pcici_t tag, int unit ); 778static void bktr_intr(void *arg) { common_bktr_intr(arg); } 779 780static u_long bktr_count; 781 782static struct pci_device bktr_device = { 783 "bktr", 784 bktr_probe, 785 bktr_attach, 786 &bktr_count 787}; 788 789DATA_SET (pcidevice_set, bktr_device); 790 791static d_open_t bktr_open; 792static d_close_t bktr_close; 793static d_read_t bktr_read; 794static d_write_t bktr_write; 795static d_ioctl_t bktr_ioctl; 796static d_mmap_t bktr_mmap; 797static d_poll_t bktr_poll; 798 799#define CDEV_MAJOR 92 800static struct cdevsw bktr_cdevsw = 801{ 802 bktr_open, bktr_close, bktr_read, bktr_write, 803 bktr_ioctl, nostop, nullreset, nodevtotty, 804 bktr_poll, bktr_mmap, NULL, "bktr", 805 NULL, -1 806}; 807 808static int bktr_devsw_installed; 809 810static void 811bktr_drvinit( void *unused ) 812{ 813 dev_t dev; 814 815 if ( ! bktr_devsw_installed ) { 816 dev = makedev(CDEV_MAJOR, 0); 817 cdevsw_add(&dev,&bktr_cdevsw, NULL); 818 bktr_devsw_installed = 1; 819 } 820} 821 822SYSINIT(bktrdev,SI_SUB_DRIVERS,SI_ORDER_MIDDLE+CDEV_MAJOR,bktr_drvinit,NULL) 823 824/* 825 * the boot time probe routine. 826 */ 827static const char* 828bktr_probe( pcici_t tag, pcidi_t type ) 829{ 830 unsigned int rev = pci_conf_read( tag, PCIR_REVID) & 0x000000ff; 831 832 switch (type) { 833 case BROOKTREE_848_PCI_ID: 834 if (rev == 0x12) return("BrookTree 848A"); 835 else return("BrookTree 848"); 836 case BROOKTREE_849_PCI_ID: 837 return("BrookTree 849A"); 838 case BROOKTREE_878_PCI_ID: 839 return("BrookTree 878"); 840 case BROOKTREE_879_PCI_ID: 841 return("BrookTree 879"); 842 }; 843 844 return ((char *)0); 845} 846 847/* 848 * the attach routine. 849 */ 850static void 851bktr_attach( pcici_t tag, int unit ) 852{ 853 bktr_ptr_t bktr; 854 u_long latency; 855 u_long fun; 856 unsigned int rev; 857 unsigned long base; 858#ifdef BROOKTREE_IRQ 859 u_long old_irq, new_irq; 860#endif 861 862 bktr = &brooktree[unit]; 863 864 if (unit >= NBKTR) { 865 printf("brooktree%d: attach: only %d units configured.\n", 866 unit, NBKTR); 867 printf("brooktree%d: attach: invalid unit number.\n", unit); 868 return; 869 } 870 871 /* build the device name for bktr_name() */ 872 snprintf(bktr->bktr_xname, sizeof(bktr->bktr_xname), "bktr%d",unit); 873 874 /* Enable Memory Mapping */ 875 fun = pci_conf_read(tag, PCI_COMMAND_STATUS_REG); 876 pci_conf_write(tag, PCI_COMMAND_STATUS_REG, fun | 2); 877 878 /* Enable Bus Mastering */ 879 fun = pci_conf_read(tag, PCI_COMMAND_STATUS_REG); 880 pci_conf_write(tag, PCI_COMMAND_STATUS_REG, fun | 4); 881 882 bktr->tag = tag; 883 884 885 /* 886 * Map control/status registers 887 */ 888 pci_map_mem( tag, PCI_MAP_REG_START, (vm_offset_t *) &base, 889 &bktr->phys_base ); 890#if (__FreeBSD_version >= 300000) 891 bktr->memt = I386_BUS_SPACE_MEM; /* XXX should use proper bus space */ 892 bktr->memh = (bus_space_handle_t)base; /* XXX functions here */ 893#endif 894 895 /* 896 * Disable the brooktree device 897 */ 898 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED); 899 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED); 900 901#ifdef BROOKTREE_IRQ /* from the configuration file */ 902 old_irq = pci_conf_read(tag, PCI_INTERRUPT_REG); 903 pci_conf_write(tag, PCI_INTERRUPT_REG, BROOKTREE_IRQ); 904 new_irq = pci_conf_read(tag, PCI_INTERRUPT_REG); 905 printf("bktr%d: attach: irq changed from %d to %d\n", 906 unit, (old_irq & 0xff), (new_irq & 0xff)); 907#endif 908 909 /* 910 * setup the interrupt handling routine 911 */ 912 pci_map_int(tag, bktr_intr, (void*) bktr, &tty_imask); 913 914 915 /* Update the Device Control Register */ 916 /* on Bt878 and Bt879 cards */ 917 fun = pci_conf_read(tag, 0x40); 918 fun = fun | 1; /* Enable writes to the sub-system vendor ID */ 919 920#if defined( BKTR_430_FX_MODE ) 921 if (bootverbose) printf("Using 430 FX chipset compatibilty mode\n"); 922 fun = fun | 2; /* Enable Intel 430 FX compatibility mode */ 923#endif 924 925#if defined( BKTR_SIS_VIA_MODE ) 926 if (bootverbose) printf("Using SiS/VIA chipset compatibilty mode\n"); 927 fun = fun | 4; /* Enable SiS/VIA compatibility mode (usefull for 928 OPTi chipset motherboards too */ 929#endif 930 pci_conf_write(tag, 0x40, fun); 931 932 933 /* XXX call bt848_i2c dependent attach() routine */ 934#if defined(BKTR_USE_FREEBSD_SMBUS) 935 if (bt848_i2c_attach(unit, bktr, &bktr->i2c_sc)) 936 printf("bktr%d: i2c_attach: can't attach\n", unit); 937#endif 938 939 940/* 941 * PCI latency timer. 32 is a good value for 4 bus mastering slots, if 942 * you have more than four, then 16 would probably be a better value. 943 */ 944#ifndef BROOKTREE_DEF_LATENCY_VALUE 945#define BROOKTREE_DEF_LATENCY_VALUE 10 946#endif 947 latency = pci_conf_read(tag, PCI_LATENCY_TIMER); 948 latency = (latency >> 8) & 0xff; 949 if ( bootverbose ) { 950 if (latency) 951 printf("brooktree%d: PCI bus latency is", unit); 952 else 953 printf("brooktree%d: PCI bus latency was 0 changing to", 954 unit); 955 } 956 if ( !latency ) { 957 latency = BROOKTREE_DEF_LATENCY_VALUE; 958 pci_conf_write(tag, PCI_LATENCY_TIMER, latency<<8); 959 } 960 if ( bootverbose ) { 961 printf(" %d.\n", (int) latency); 962 } 963 964 965 /* read the pci device id and revision id */ 966 fun = pci_conf_read(tag, PCI_ID_REG); 967 rev = pci_conf_read(tag, PCIR_REVID) & 0x000000ff; 968 969 /* call the common attach code */ 970 common_bktr_attach( bktr, unit, fun, rev ); 971 972} 973 974 975/* 976 * Special Memory Allocation 977 */ 978vm_offset_t 979get_bktr_mem( int unit, unsigned size ) 980{ 981 vm_offset_t addr = 0; 982 983 addr = vm_page_alloc_contig(size, 0x100000, 0xffffffff, 1<<24); 984 if (addr == 0) 985 addr = vm_page_alloc_contig(size, 0x100000, 0xffffffff, 986 PAGE_SIZE); 987 if (addr == 0) { 988 printf("bktr%d: Unable to allocate %d bytes of memory.\n", 989 unit, size); 990 } 991 992 return( addr ); 993} 994 995/*--------------------------------------------------------- 996** 997** BrookTree 848 character device driver routines 998** 999**--------------------------------------------------------- 1000*/ 1001 1002 1003#define VIDEO_DEV 0x00 1004#define TUNER_DEV 0x01 1005#define VBI_DEV 0x02 1006 1007#define UNIT(x) ((x) & 0x0f) 1008#define FUNCTION(x) ((x >> 4) & 0x0f) 1009 1010 1011/* 1012 * 1013 */ 1014int 1015bktr_open( dev_t dev, int flags, int fmt, struct proc *p ) 1016{ 1017 bktr_ptr_t bktr; 1018 int unit; 1019 1020 unit = UNIT( minor(dev) ); 1021 if (unit >= NBKTR) /* unit out of range */ 1022 return( ENXIO ); 1023 1024 bktr = &(brooktree[ unit ]); 1025 1026 if (!(bktr->flags & METEOR_INITALIZED)) /* device not found */ 1027 return( ENXIO ); 1028 1029 1030 if (bt848_card != -1) { 1031 if ((bt848_card >> 8 == unit ) && 1032 ( (bt848_card & 0xff) < Bt848_MAX_CARD )) { 1033 if ( bktr->bt848_card != (bt848_card & 0xff) ) { 1034 bktr->bt848_card = (bt848_card & 0xff); 1035 probeCard(bktr, FALSE, unit); 1036 } 1037 } 1038 } 1039 1040 if (bt848_tuner != -1) { 1041 if ((bt848_tuner >> 8 == unit ) && 1042 ( (bt848_tuner & 0xff) < Bt848_MAX_TUNER )) { 1043 if ( bktr->bt848_tuner != (bt848_tuner & 0xff) ) { 1044 bktr->bt848_tuner = (bt848_tuner & 0xff); 1045 probeCard(bktr, FALSE, unit); 1046 } 1047 } 1048 } 1049 1050 if (bt848_reverse_mute != -1) { 1051 if ((bt848_reverse_mute >> 8) == unit ) { 1052 bktr->reverse_mute = bt848_reverse_mute & 0xff; 1053 } 1054 } 1055 1056 if (bt848_slow_msp_audio != -1) { 1057 if ((bt848_slow_msp_audio >> 8) == unit ) { 1058 bktr->slow_msp_audio = (bt848_slow_msp_audio & 0xff); 1059 } 1060 } 1061 1062 switch ( FUNCTION( minor(dev) ) ) { 1063 case VIDEO_DEV: 1064 return( video_open( bktr ) ); 1065 case TUNER_DEV: 1066 return( tuner_open( bktr ) ); 1067 case VBI_DEV: 1068 return( vbi_open( bktr ) ); 1069 } 1070 return( ENXIO ); 1071} 1072 1073 1074/* 1075 * 1076 */ 1077int 1078bktr_close( dev_t dev, int flags, int fmt, struct proc *p ) 1079{ 1080 bktr_ptr_t bktr; 1081 int unit; 1082 1083 unit = UNIT( minor(dev) ); 1084 if (unit >= NBKTR) /* unit out of range */ 1085 return( ENXIO ); 1086 1087 bktr = &(brooktree[ unit ]); 1088 1089 switch ( FUNCTION( minor(dev) ) ) { 1090 case VIDEO_DEV: 1091 return( video_close( bktr ) ); 1092 case TUNER_DEV: 1093 return( tuner_close( bktr ) ); 1094 case VBI_DEV: 1095 return( vbi_close( bktr ) ); 1096 } 1097 1098 return( ENXIO ); 1099} 1100 1101/* 1102 * 1103 */ 1104int 1105bktr_read( dev_t dev, struct uio *uio, int ioflag ) 1106{ 1107 bktr_ptr_t bktr; 1108 int unit; 1109 1110 unit = UNIT(minor(dev)); 1111 if (unit >= NBKTR) /* unit out of range */ 1112 return( ENXIO ); 1113 1114 bktr = &(brooktree[unit]); 1115 1116 switch ( FUNCTION( minor(dev) ) ) { 1117 case VIDEO_DEV: 1118 return( video_read( bktr, unit, dev, uio ) ); 1119 case VBI_DEV: 1120 return( vbi_read( bktr, uio, ioflag ) ); 1121 } 1122 return( ENXIO ); 1123} 1124 1125 1126/* 1127 * 1128 */ 1129int 1130bktr_write( dev_t dev, struct uio *uio, int ioflag ) 1131{ 1132 return( EINVAL ); /* XXX or ENXIO ? */ 1133} 1134 1135/* 1136 * 1137 */ 1138int 1139bktr_ioctl( dev_t dev, ioctl_cmd_t cmd, caddr_t arg, int flag, struct proc* pr ) 1140{ 1141 bktr_ptr_t bktr; 1142 int unit; 1143 1144 unit = UNIT(minor(dev)); 1145 if (unit >= NBKTR) /* unit out of range */ 1146 return( ENXIO ); 1147 1148 bktr = &(brooktree[ unit ]); 1149 1150 if (bktr->bigbuf == 0) /* no frame buffer allocated (ioctl failed) */ 1151 return( ENOMEM ); 1152 1153 switch ( FUNCTION( minor(dev) ) ) { 1154 case VIDEO_DEV: 1155 return( video_ioctl( bktr, unit, cmd, arg, pr ) ); 1156 case TUNER_DEV: 1157 return( tuner_ioctl( bktr, unit, cmd, arg, pr ) ); 1158 } 1159 1160 return( ENXIO ); 1161} 1162 1163/* 1164 * bktr_mmap. 1165 * Note: 2.2.5/2.2.6/2.2.7/3.0 users must manually 1166 * edit the line below and change "vm_offset_t" to "int" 1167 */ 1168int bktr_mmap( dev_t dev, vm_offset_t offset, int nprot ) 1169 1170{ 1171 int unit; 1172 bktr_ptr_t bktr; 1173 1174 unit = UNIT(minor(dev)); 1175 1176 if (unit >= NBKTR || FUNCTION(minor(dev)) > 0) 1177 return( -1 ); 1178 1179 bktr = &(brooktree[ unit ]); 1180 1181 if (nprot & PROT_EXEC) 1182 return( -1 ); 1183 1184 if (offset < 0) 1185 return( -1 ); 1186 1187 if (offset >= bktr->alloc_pages * PAGE_SIZE) 1188 return( -1 ); 1189 1190 return( i386_btop(vtophys(bktr->bigbuf) + offset) ); 1191} 1192 1193int bktr_poll( dev_t dev, int events, struct proc *p) 1194{ 1195 int unit; 1196 bktr_ptr_t bktr; 1197 int revents = 0; 1198 1199 unit = UNIT(minor(dev)); 1200 1201 if (unit >= NBKTR) 1202 return( -1 ); 1203 1204 bktr = &(brooktree[ unit ]); 1205 1206 disable_intr(); 1207 1208 if (events & (POLLIN | POLLRDNORM)) { 1209 1210 switch ( FUNCTION( minor(dev) ) ) { 1211 case VBI_DEV: 1212 if(bktr->vbisize == 0) 1213 selrecord(p, &bktr->vbi_select); 1214 else 1215 revents |= events & (POLLIN | POLLRDNORM); 1216 break; 1217 } 1218 } 1219 1220 enable_intr(); 1221 1222 return (revents); 1223} 1224 1225 1226#endif /* FreeBSD 2.2.x and 3.x specific kernel interface routines */ 1227 1228 1229/*****************/ 1230/* *** BSDI *** */ 1231/*****************/ 1232 1233#if defined(__bsdi__) 1234#endif /* __bsdi__ BSDI specific kernel interface routines */ 1235 1236 1237/*****************************/ 1238/* *** OpenBSD / NetBSD *** */ 1239/*****************************/ 1240#if defined(__NetBSD__) || defined(__OpenBSD__) 1241 1242#define IPL_VIDEO IPL_BIO /* XXX */ 1243 1244static int bktr_intr(void *arg) { return common_bktr_intr(arg); } 1245 1246#define bktr_open bktropen 1247#define bktr_close bktrclose 1248#define bktr_read bktrread 1249#define bktr_write bktrwrite 1250#define bktr_ioctl bktrioctl 1251#define bktr_mmap bktrmmap 1252 1253vm_offset_t vm_page_alloc_contig(vm_offset_t, vm_offset_t, 1254 vm_offset_t, vm_offset_t); 1255 1256#if defined(__OpenBSD__) 1257static int bktr_probe __P((struct device *, void *, void *)); 1258#else 1259static int bktr_probe __P((struct device *, struct cfdata *, void *)); 1260#endif 1261static void bktr_attach __P((struct device *, struct device *, void *)); 1262 1263struct cfattach bktr_ca = { 1264 sizeof(struct bktr_softc), bktr_probe, bktr_attach 1265}; 1266 1267#if defined(__NetBSD__) 1268extern struct cfdriver bktr_cd; 1269#else 1270struct cfdriver bktr_cd = { 1271 NULL, "bktr", DV_DULL 1272}; 1273#endif 1274 1275int 1276bktr_probe(parent, match, aux) 1277 struct device *parent; 1278#if defined(__OpenBSD__) 1279 void *match; 1280#else 1281 struct cfdata *match; 1282#endif 1283 void *aux; 1284{ 1285 struct pci_attach_args *pa = aux; 1286 1287 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_BROOKTREE && 1288 (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT848 || 1289 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT849 || 1290 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT878 || 1291 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT879)) 1292 return 1; 1293 1294 return 0; 1295} 1296 1297 1298/* 1299 * the attach routine. 1300 */ 1301static void 1302bktr_attach(struct device *parent, struct device *self, void *aux) 1303{ 1304 bktr_ptr_t bktr; 1305 u_long latency; 1306 u_long fun; 1307 unsigned int rev; 1308 1309#if defined(__OpenBSD__) 1310 struct pci_attach_args *pa = aux; 1311 pci_chipset_tag_t pc = pa->pa_pc; 1312 1313 pci_intr_handle_t ih; 1314 const char *intrstr; 1315 int retval; 1316 int unit; 1317 1318 bktr = (bktr_ptr_t)self; 1319 unit = bktr->bktr_dev.dv_unit; 1320 1321 bktr->pc = pa->pa_pc; 1322 bktr->tag = pa->pa_tag; 1323 bktr->dmat = pa->pa_dmat; 1324 1325 /* 1326 * map memory 1327 */ 1328 bktr->memt = pa->pa_memt; 1329 retval = pci_mem_find(pc, pa->pa_tag, PCI_MAPREG_START, 1330 &bktr->phys_base, &bktr->obmemsz, NULL); 1331 if (!retval) 1332 retval = bus_space_map(pa->pa_memt, bktr->phys_base, 1333 bktr->obmemsz, 0, &bktr->memh); 1334 if (retval) { 1335 printf(": couldn't map memory\n"); 1336 return; 1337 } 1338 1339 1340 /* 1341 * map interrupt 1342 */ 1343 if (pci_intr_map(pa->pa_pc, pa->pa_intrtag, pa->pa_intrpin, 1344 pa->pa_intrline, &ih)) { 1345 printf(": couldn't map interrupt\n"); 1346 return; 1347 } 1348 intrstr = pci_intr_string(pa->pa_pc, ih); 1349 1350 bktr->ih = pci_intr_establish(pa->pa_pc, ih, IPL_VIDEO, 1351 bktr_intr, bktr, bktr->bktr_dev.dv_xname); 1352 if (bktr->ih == NULL) { 1353 printf(": couldn't establish interrupt"); 1354 if (intrstr != NULL) 1355 printf(" at %s", intrstr); 1356 printf("\n"); 1357 return; 1358 } 1359 1360 if (intrstr != NULL) 1361 printf(": %s\n", intrstr); 1362#endif /* __OpenBSD__ */ 1363 1364#if defined(__NetBSD__) 1365 struct pci_attach_args *pa = aux; 1366 pci_intr_handle_t ih; 1367 const char *intrstr; 1368 int retval; 1369 int unit; 1370 1371 bktr = (bktr_ptr_t)self; 1372 unit = bktr->bktr_dev.dv_unit; 1373 bktr->dmat = pa->pa_dmat; 1374 1375 printf("\n"); 1376 1377 /* 1378 * map memory 1379 */ 1380 retval = pci_mapreg_map(pa, PCI_MAPREG_START, 1381 PCI_MAPREG_TYPE_MEM 1382 | PCI_MAPREG_MEM_TYPE_32BIT, 0, 1383 &bktr->memt, &bktr->memh, NULL, 1384 &bktr->obmemsz); 1385 DPR(("pci_mapreg_map: memt %x, memh %x, size %x\n", 1386 bktr->memt, (u_int)bktr->memh, (u_int)bktr->obmemsz)); 1387 if (retval) { 1388 printf("%s: couldn't map memory\n", bktr_name(bktr)); 1389 return; 1390 } 1391 1392 /* 1393 * Disable the brooktree device 1394 */ 1395 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED); 1396 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED); 1397 1398 /* 1399 * map interrupt 1400 */ 1401 if (pci_intr_map(pa->pa_pc, pa->pa_intrtag, pa->pa_intrpin, 1402 pa->pa_intrline, &ih)) { 1403 printf("%s: couldn't map interrupt\n", 1404 bktr_name(bktr)); 1405 return; 1406 } 1407 intrstr = pci_intr_string(pa->pa_pc, ih); 1408 bktr->ih = pci_intr_establish(pa->pa_pc, ih, IPL_VIDEO, 1409 bktr_intr, bktr); 1410 if (bktr->ih == NULL) { 1411 printf("%s: couldn't establish interrupt", 1412 bktr_name(bktr)); 1413 if (intrstr != NULL) 1414 printf(" at %s", intrstr); 1415 printf("\n"); 1416 return; 1417 } 1418 if (intrstr != NULL) 1419 printf("%s: interrupting at %s\n", bktr_name(bktr), 1420 intrstr); 1421#endif /* __NetBSD__ */ 1422 1423/* 1424 * PCI latency timer. 32 is a good value for 4 bus mastering slots, if 1425 * you have more than four, then 16 would probably be a better value. 1426 */ 1427#ifndef BROOKTREE_DEF_LATENCY_VALUE 1428#define BROOKTREE_DEF_LATENCY_VALUE 10 1429#endif 1430 latency = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_LATENCY_TIMER); 1431 latency = (latency >> 8) & 0xff; 1432 1433 if (!latency) { 1434 if (bootverbose) { 1435 printf("%s: PCI bus latency was 0 changing to %d", 1436 bktr_name(bktr), BROOKTREE_DEF_LATENCY_VALUE); 1437 } 1438 latency = BROOKTREE_DEF_LATENCY_VALUE; 1439 pci_conf_write(pa->pa_pc, pa->pa_tag, 1440 PCI_LATENCY_TIMER, latency<<8); 1441 } 1442 1443 1444 /* Enabled Bus Master 1445 XXX: check if all old DMA is stopped first (e.g. after warm 1446 boot) */ 1447 fun = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); 1448 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, 1449 fun | PCI_COMMAND_MASTER_ENABLE); 1450 1451 /* read the pci id and determine the card type */ 1452 fun = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_ID_REG); 1453 rev = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_CLASS_REG) & 0x000000ff; 1454 1455 common_bktr_attach(bktr, unit, fun, rev); 1456} 1457 1458 1459/* 1460 * Special Memory Allocation 1461 */ 1462vm_offset_t 1463get_bktr_mem(bktr, dmapp, size) 1464 bktr_ptr_t bktr; 1465 bus_dmamap_t *dmapp; 1466 unsigned int size; 1467{ 1468 bus_dma_tag_t dmat = bktr->dmat; 1469 bus_dma_segment_t seg; 1470 bus_size_t align; 1471 int rseg; 1472 caddr_t kva; 1473 1474 /* 1475 * Allocate a DMA area 1476 */ 1477 align = 1 << 24; 1478 if (bus_dmamem_alloc(dmat, size, align, 0, &seg, 1, 1479 &rseg, BUS_DMA_NOWAIT)) { 1480 align = PAGE_SIZE; 1481 if (bus_dmamem_alloc(dmat, size, align, 0, &seg, 1, 1482 &rseg, BUS_DMA_NOWAIT)) { 1483 printf("%s: Unable to dmamem_alloc of %d bytes\n", 1484 bktr_name(bktr), size); 1485 return 0; 1486 } 1487 } 1488 if (bus_dmamem_map(dmat, &seg, rseg, size, 1489 &kva, BUS_DMA_NOWAIT|BUS_DMA_COHERENT)) { 1490 printf("%s: Unable to dmamem_map of %d bytes\n", 1491 bktr_name(bktr), size); 1492 bus_dmamem_free(dmat, &seg, rseg); 1493 return 0; 1494 } 1495#ifdef __OpenBSD__ 1496 bktr->dm_mapsize = size; 1497#endif 1498 /* 1499 * Create and locd the DMA map for the DMA area 1500 */ 1501 if (bus_dmamap_create(dmat, size, 1, size, 0, BUS_DMA_NOWAIT, dmapp)) { 1502 printf("%s: Unable to dmamap_create of %d bytes\n", 1503 bktr_name(bktr), size); 1504 bus_dmamem_unmap(dmat, kva, size); 1505 bus_dmamem_free(dmat, &seg, rseg); 1506 return 0; 1507 } 1508 if (bus_dmamap_load(dmat, *dmapp, kva, size, NULL, BUS_DMA_NOWAIT)) { 1509 printf("%s: Unable to dmamap_load of %d bytes\n", 1510 bktr_name(bktr), size); 1511 bus_dmamem_unmap(dmat, kva, size); 1512 bus_dmamem_free(dmat, &seg, rseg); 1513 bus_dmamap_destroy(dmat, *dmapp); 1514 return 0; 1515 } 1516 return (vm_offset_t)kva; 1517} 1518 1519void 1520free_bktr_mem(bktr, dmap, kva) 1521 bktr_ptr_t bktr; 1522 bus_dmamap_t dmap; 1523 vm_offset_t kva; 1524{ 1525 bus_dma_tag_t dmat = bktr->dmat; 1526 1527#ifdef __NetBSD__ 1528 bus_dmamem_unmap(dmat, (caddr_t)kva, dmap->dm_mapsize); 1529#else 1530 bus_dmamem_unmap(dmat, (caddr_t)kva, bktr->dm_mapsize); 1531#endif 1532 bus_dmamem_free(dmat, dmap->dm_segs, 1); 1533 bus_dmamap_destroy(dmat, dmap); 1534} 1535 1536 1537/*--------------------------------------------------------- 1538** 1539** BrookTree 848 character device driver routines 1540** 1541**--------------------------------------------------------- 1542*/ 1543 1544 1545#define VIDEO_DEV 0x00 1546#define TUNER_DEV 0x01 1547#define VBI_DEV 0x02 1548 1549#define UNIT(x) (minor((x) & 0x0f)) 1550#define FUNCTION(x) (minor((x >> 4) & 0x0f)) 1551 1552/* 1553 * 1554 */ 1555int 1556bktr_open(dev_t dev, int flags, int fmt, struct proc *p) 1557{ 1558 bktr_ptr_t bktr; 1559 int unit; 1560 1561 unit = UNIT(dev); 1562 1563 /* unit out of range */ 1564 if ((unit > bktr_cd.cd_ndevs) || (bktr_cd.cd_devs[unit] == NULL)) 1565 return(ENXIO); 1566 1567 bktr = bktr_cd.cd_devs[unit]; 1568 1569 if (!(bktr->flags & METEOR_INITALIZED)) /* device not found */ 1570 return(ENXIO); 1571 1572 switch (FUNCTION(dev)) { 1573 case VIDEO_DEV: 1574 return(video_open(bktr)); 1575 case TUNER_DEV: 1576 return(tuner_open(bktr)); 1577 case VBI_DEV: 1578 return(vbi_open(bktr)); 1579 } 1580 1581 return(ENXIO); 1582} 1583 1584 1585/* 1586 * 1587 */ 1588int 1589bktr_close(dev_t dev, int flags, int fmt, struct proc *p) 1590{ 1591 bktr_ptr_t bktr; 1592 int unit; 1593 1594 unit = UNIT(dev); 1595 1596 bktr = bktr_cd.cd_devs[unit]; 1597 1598 switch (FUNCTION(dev)) { 1599 case VIDEO_DEV: 1600 return(video_close(bktr)); 1601 case TUNER_DEV: 1602 return(tuner_close(bktr)); 1603 case VBI_DEV: 1604 return(vbi_close(bktr)); 1605 } 1606 1607 return(ENXIO); 1608} 1609 1610/* 1611 * 1612 */ 1613int 1614bktr_read(dev_t dev, struct uio *uio, int ioflag) 1615{ 1616 bktr_ptr_t bktr; 1617 int unit; 1618 1619 unit = UNIT(dev); 1620 1621 bktr = bktr_cd.cd_devs[unit]; 1622 1623 switch (FUNCTION(dev)) { 1624 case VIDEO_DEV: 1625 return(video_read(bktr, unit, dev, uio)); 1626 case VBI_DEV: 1627 return(vbi_read(bktr, uio, ioflag)); 1628 } 1629 1630 return(ENXIO); 1631} 1632 1633 1634/* 1635 * 1636 */ 1637int 1638bktr_write(dev_t dev, struct uio *uio, int ioflag) 1639{ 1640 /* operation not supported */ 1641 return(EOPNOTSUPP); 1642} 1643 1644/* 1645 * 1646 */ 1647int 1648bktr_ioctl(dev_t dev, ioctl_cmd_t cmd, caddr_t arg, int flag, struct proc* pr) 1649{ 1650 bktr_ptr_t bktr; 1651 int unit; 1652 1653 unit = UNIT(dev); 1654 1655 bktr = bktr_cd.cd_devs[unit]; 1656 1657 if (bktr->bigbuf == 0) /* no frame buffer allocated (ioctl failed) */ 1658 return(ENOMEM); 1659 1660 switch (FUNCTION(dev)) { 1661 case VIDEO_DEV: 1662 return(video_ioctl(bktr, unit, cmd, arg, pr)); 1663 case TUNER_DEV: 1664 return(tuner_ioctl(bktr, unit, cmd, arg, pr)); 1665 } 1666 1667 return(ENXIO); 1668} 1669 1670/* 1671 * 1672 */ 1673paddr_t 1674bktr_mmap(dev_t dev, off_t offset, int nprot) 1675{ 1676 int unit; 1677 bktr_ptr_t bktr; 1678 1679 unit = UNIT(dev); 1680 1681 if (FUNCTION(dev) > 0) /* only allow mmap on /dev/bktr[n] */ 1682 return(-1); 1683 1684 bktr = bktr_cd.cd_devs[unit]; 1685 1686 if ((vaddr_t)offset < 0) 1687 return(-1); 1688 1689 if ((vaddr_t)offset >= bktr->alloc_pages * PAGE_SIZE) 1690 return(-1); 1691 1692#ifdef __NetBSD__ 1693 return (bus_dmamem_mmap(bktr->dmat, bktr->dm_mem->dm_segs, 1, 1694 (vaddr_t)offset, nprot, BUS_DMA_WAITOK)); 1695#else 1696 return(i386_btop(vtophys(bktr->bigbuf) + offset)); 1697#endif 1698} 1699 1700#endif /* __NetBSD__ || __OpenBSD__ */ 1701