bktr_os.c revision 86018
1/* $FreeBSD: head/sys/dev/bktr/bktr_os.c 86018 2001-11-04 11:50:08Z phk $ */ 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#if __FreeBSD_version >= 500014 75#include <sys/selinfo.h> 76#else 77#include <sys/select.h> 78#endif 79#include <sys/vnode.h> 80 81#include <vm/vm.h> 82#include <vm/vm_kern.h> 83#include <vm/pmap.h> 84#include <vm/vm_extern.h> 85 86#if (__FreeBSD_version >=400000) || (NSMBUS > 0) 87#include <sys/bus.h> /* used by smbus and newbus */ 88#endif 89 90#if (__FreeBSD_version >=300000) 91#include <machine/bus_memio.h> /* used by bus space */ 92#include <machine/bus.h> /* used by bus space and newbus */ 93#include <sys/bus.h> 94#endif 95 96#if (__FreeBSD_version >=400000) 97#include <sys/rman.h> /* used by newbus */ 98#include <machine/resource.h> /* used by newbus */ 99#endif 100 101#if (__FreeBSD_version < 500000) 102#include <machine/clock.h> /* for DELAY */ 103#endif 104 105#include <pci/pcivar.h> 106#include <pci/pcireg.h> 107 108#include <sys/sysctl.h> 109int bt848_card = -1; 110int bt848_tuner = -1; 111int bt848_reverse_mute = -1; 112int bt848_format = -1; 113int bt848_slow_msp_audio = -1; 114 115SYSCTL_NODE(_hw, OID_AUTO, bt848, CTLFLAG_RW, 0, "Bt848 Driver mgmt"); 116SYSCTL_INT(_hw_bt848, OID_AUTO, card, CTLFLAG_RW, &bt848_card, -1, ""); 117SYSCTL_INT(_hw_bt848, OID_AUTO, tuner, CTLFLAG_RW, &bt848_tuner, -1, ""); 118SYSCTL_INT(_hw_bt848, OID_AUTO, reverse_mute, CTLFLAG_RW, &bt848_reverse_mute, -1, ""); 119SYSCTL_INT(_hw_bt848, OID_AUTO, format, CTLFLAG_RW, &bt848_format, -1, ""); 120SYSCTL_INT(_hw_bt848, OID_AUTO, slow_msp_audio, CTLFLAG_RW, &bt848_slow_msp_audio, -1, ""); 121 122#if (__FreeBSD__ == 2) 123#define PCIR_REVID PCI_CLASS_REG 124#endif 125 126#endif /* end freebsd section */ 127 128 129 130/****************/ 131/* *** BSDI *** */ 132/****************/ 133#ifdef __bsdi__ 134#endif /* __bsdi__ */ 135 136 137/**************************/ 138/* *** OpenBSD/NetBSD *** */ 139/**************************/ 140#if defined(__NetBSD__) || defined(__OpenBSD__) 141 142#include <sys/param.h> 143#include <sys/systm.h> 144#include <sys/conf.h> 145#include <sys/uio.h> 146#include <sys/kernel.h> 147#include <sys/signalvar.h> 148#include <sys/mman.h> 149#include <sys/poll.h> 150#include <sys/select.h> 151#include <sys/vnode.h> 152 153#include <vm/vm.h> 154 155#ifndef __NetBSD__ 156#include <vm/vm_kern.h> 157#include <vm/pmap.h> 158#include <vm/vm_extern.h> 159#endif 160 161#include <sys/device.h> 162#include <dev/pci/pcivar.h> 163#include <dev/pci/pcireg.h> 164#include <dev/pci/pcidevs.h> 165 166#define BKTR_DEBUG 167#ifdef BKTR_DEBUG 168int bktr_debug = 0; 169#define DPR(x) (bktr_debug ? printf x : 0) 170#else 171#define DPR(x) 172#endif 173#endif /* __NetBSD__ || __OpenBSD__ */ 174 175 176#ifdef __NetBSD__ 177#include <dev/ic/bt8xx.h> /* NetBSD location for .h files */ 178#include <dev/pci/bktr/bktr_reg.h> 179#include <dev/pci/bktr/bktr_tuner.h> 180#include <dev/pci/bktr/bktr_card.h> 181#include <dev/pci/bktr/bktr_audio.h> 182#include <dev/pci/bktr/bktr_core.h> 183#include <dev/pci/bktr/bktr_os.h> 184#else /* Traditional location for .h files */ 185#include <machine/ioctl_meteor.h> 186#include <machine/ioctl_bt848.h> /* extensions to ioctl_meteor.h */ 187#include <dev/bktr/bktr_reg.h> 188#include <dev/bktr/bktr_tuner.h> 189#include <dev/bktr/bktr_card.h> 190#include <dev/bktr/bktr_audio.h> 191#include <dev/bktr/bktr_core.h> 192#include <dev/bktr/bktr_os.h> 193#if defined(BKTR_USE_FREEBSD_SMBUS) 194#include <dev/bktr/bktr_i2c.h> 195#endif 196#endif 197 198 199 200/****************************/ 201/* *** FreeBSD 4.x code *** */ 202/****************************/ 203#if (__FreeBSD_version >= 400000) 204 205static int bktr_probe( device_t dev ); 206static int bktr_attach( device_t dev ); 207static int bktr_detach( device_t dev ); 208static int bktr_shutdown( device_t dev ); 209static void bktr_intr(void *arg) { common_bktr_intr(arg); } 210 211static device_method_t bktr_methods[] = { 212 /* Device interface */ 213 DEVMETHOD(device_probe, bktr_probe), 214 DEVMETHOD(device_attach, bktr_attach), 215 DEVMETHOD(device_detach, bktr_detach), 216 DEVMETHOD(device_shutdown, bktr_shutdown), 217 218 { 0, 0 } 219}; 220 221static driver_t bktr_driver = { 222 "bktr", 223 bktr_methods, 224 sizeof(struct bktr_softc), 225}; 226 227static devclass_t bktr_devclass; 228 229static d_open_t bktr_open; 230static d_close_t bktr_close; 231static d_read_t bktr_read; 232static d_write_t bktr_write; 233static d_ioctl_t bktr_ioctl; 234static d_mmap_t bktr_mmap; 235static d_poll_t bktr_poll; 236 237#define CDEV_MAJOR 92 238static struct cdevsw bktr_cdevsw = { 239 /* open */ bktr_open, 240 /* close */ bktr_close, 241 /* read */ bktr_read, 242 /* write */ bktr_write, 243 /* ioctl */ bktr_ioctl, 244 /* poll */ bktr_poll, 245 /* mmap */ bktr_mmap, 246 /* strategy */ nostrategy, 247 /* name */ "bktr", 248 /* maj */ CDEV_MAJOR, 249 /* dump */ nodump, 250 /* psize */ nopsize, 251 /* flags */ 0, 252}; 253 254DRIVER_MODULE(bktr, pci, bktr_driver, bktr_devclass, 0, 0); 255#if (__FreeBSD_version > 410000) 256MODULE_DEPEND(bktr, bktr_mem, 1,1,1); 257MODULE_VERSION(bktr, 1); 258#endif 259 260 261/* 262 * the boot time probe routine. 263 */ 264static int 265bktr_probe( device_t dev ) 266{ 267 unsigned int type = pci_get_devid(dev); 268 unsigned int rev = pci_get_revid(dev); 269 270 if (PCI_VENDOR(type) == PCI_VENDOR_BROOKTREE) 271 { 272 switch (PCI_PRODUCT(type)) { 273 case PCI_PRODUCT_BROOKTREE_BT848: 274 if (rev == 0x12) 275 device_set_desc(dev, "BrookTree 848A"); 276 else 277 device_set_desc(dev, "BrookTree 848"); 278 return 0; 279 case PCI_PRODUCT_BROOKTREE_BT849: 280 device_set_desc(dev, "BrookTree 849A"); 281 return 0; 282 case PCI_PRODUCT_BROOKTREE_BT878: 283 device_set_desc(dev, "BrookTree 878"); 284 return 0; 285 case PCI_PRODUCT_BROOKTREE_BT879: 286 device_set_desc(dev, "BrookTree 879"); 287 return 0; 288 } 289 }; 290 291 return ENXIO; 292} 293 294 295/* 296 * the attach routine. 297 */ 298static int 299bktr_attach( device_t dev ) 300{ 301 u_long latency; 302 u_long fun; 303 u_long val; 304 unsigned int rev; 305 unsigned int unit; 306 int error = 0; 307#ifdef BROOKTREE_IRQ 308 u_long old_irq, new_irq; 309#endif 310 311 struct bktr_softc *bktr = device_get_softc(dev); 312 313 unit = device_get_unit(dev); 314 315 /* build the device name for bktr_name() */ 316 snprintf(bktr->bktr_xname, sizeof(bktr->bktr_xname), "bktr%d",unit); 317 318 /* 319 * Enable bus mastering and Memory Mapped device 320 */ 321 val = pci_read_config(dev, PCIR_COMMAND, 4); 322 val |= (PCIM_CMD_MEMEN|PCIM_CMD_BUSMASTEREN); 323 pci_write_config(dev, PCIR_COMMAND, val, 4); 324 325 /* 326 * Map control/status registers. 327 */ 328 bktr->mem_rid = PCIR_MAPS; 329 bktr->res_mem = bus_alloc_resource(dev, SYS_RES_MEMORY, &bktr->mem_rid, 330 0, ~0, 1, RF_ACTIVE); 331 332 333 if (!bktr->res_mem) { 334 device_printf(dev, "could not map memory\n"); 335 error = ENXIO; 336 goto fail; 337 } 338 bktr->memt = rman_get_bustag(bktr->res_mem); 339 bktr->memh = rman_get_bushandle(bktr->res_mem); 340 341 342 /* 343 * Disable the brooktree device 344 */ 345 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED); 346 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED); 347 348 349#ifdef BROOKTREE_IRQ /* from the configuration file */ 350 old_irq = pci_conf_read(tag, PCI_INTERRUPT_REG); 351 pci_conf_write(tag, PCI_INTERRUPT_REG, BROOKTREE_IRQ); 352 new_irq = pci_conf_read(tag, PCI_INTERRUPT_REG); 353 printf("bktr%d: attach: irq changed from %d to %d\n", 354 unit, (old_irq & 0xff), (new_irq & 0xff)); 355#endif 356 357 /* 358 * Allocate our interrupt. 359 */ 360 bktr->irq_rid = 0; 361 bktr->res_irq = bus_alloc_resource(dev, SYS_RES_IRQ, &bktr->irq_rid, 362 0, ~0, 1, RF_SHAREABLE | RF_ACTIVE); 363 if (bktr->res_irq == NULL) { 364 device_printf(dev, "could not map interrupt\n"); 365 error = ENXIO; 366 goto fail; 367 } 368 369 error = bus_setup_intr(dev, bktr->res_irq, INTR_TYPE_TTY, 370 bktr_intr, bktr, &bktr->res_ih); 371 if (error) { 372 device_printf(dev, "could not setup irq\n"); 373 goto fail; 374 375 } 376 377 378 /* Update the Device Control Register */ 379 /* on Bt878 and Bt879 cards */ 380 fun = pci_read_config( dev, 0x40, 2); 381 fun = fun | 1; /* Enable writes to the sub-system vendor ID */ 382 383#if defined( BKTR_430_FX_MODE ) 384 if (bootverbose) printf("Using 430 FX chipset compatibilty mode\n"); 385 fun = fun | 2; /* Enable Intel 430 FX compatibility mode */ 386#endif 387 388#if defined( BKTR_SIS_VIA_MODE ) 389 if (bootverbose) printf("Using SiS/VIA chipset compatibilty mode\n"); 390 fun = fun | 4; /* Enable SiS/VIA compatibility mode (usefull for 391 OPTi chipset motherboards too */ 392#endif 393 pci_write_config(dev, 0x40, fun, 2); 394 395 396 /* XXX call bt848_i2c dependent attach() routine */ 397#if defined(BKTR_USE_FREEBSD_SMBUS) 398 if (bt848_i2c_attach(unit, bktr, &bktr->i2c_sc)) 399 printf("bktr%d: i2c_attach: can't attach\n", unit); 400#endif 401 402 403/* 404 * PCI latency timer. 32 is a good value for 4 bus mastering slots, if 405 * you have more than four, then 16 would probably be a better value. 406 */ 407#ifndef BROOKTREE_DEF_LATENCY_VALUE 408#define BROOKTREE_DEF_LATENCY_VALUE 10 409#endif 410 latency = pci_read_config(dev, PCI_LATENCY_TIMER, 4); 411 latency = (latency >> 8) & 0xff; 412 if ( bootverbose ) { 413 if (latency) 414 printf("brooktree%d: PCI bus latency is", unit); 415 else 416 printf("brooktree%d: PCI bus latency was 0 changing to", 417 unit); 418 } 419 if ( !latency ) { 420 latency = BROOKTREE_DEF_LATENCY_VALUE; 421 pci_write_config(dev, PCI_LATENCY_TIMER, latency<<8, 4); 422 } 423 if ( bootverbose ) { 424 printf(" %d.\n", (int) latency); 425 } 426 427 /* read the pci device id and revision id */ 428 fun = pci_get_devid(dev); 429 rev = pci_get_revid(dev); 430 431 /* call the common attach code */ 432 common_bktr_attach( bktr, unit, fun, rev ); 433 434 /* make the device entries */ 435 bktr->bktrdev = make_dev(&bktr_cdevsw, unit, 436 0, 0, 0444, "bktr%d", unit); 437 bktr->tunerdev= make_dev(&bktr_cdevsw, unit+16, 438 0, 0, 0444, "tuner%d", unit); 439 bktr->vbidev = make_dev(&bktr_cdevsw, unit+32, 440 0, 0, 0444, "vbi%d" , unit); 441 442 443 /* if this is unit 0 (/dev/bktr0, /dev/tuner0, /dev/vbi0) then make */ 444 /* alias entries to /dev/bktr /dev/tuner and /dev/vbi */ 445#if (__FreeBSD_version >=500000) 446 if (unit == 0) { 447 bktr->bktrdev_alias = make_dev_alias(bktr->bktrdev, "bktr"); 448 bktr->tunerdev_alias= make_dev_alias(bktr->tunerdev, "tuner"); 449 bktr->vbidev_alias = make_dev_alias(bktr->vbidev, "vbi"); 450 } 451#endif 452 453 return 0; 454 455fail: 456 if (bktr->res_irq) 457 bus_release_resource(dev, SYS_RES_IRQ, bktr->irq_rid, bktr->res_irq); 458 if (bktr->res_mem) 459 bus_release_resource(dev, SYS_RES_IRQ, bktr->mem_rid, bktr->res_mem); 460 return error; 461 462} 463 464/* 465 * the detach routine. 466 */ 467static int 468bktr_detach( device_t dev ) 469{ 470 unsigned int unit; 471 472 struct bktr_softc *bktr = device_get_softc(dev); 473 474 unit = device_get_unit(dev); 475 476 /* Disable the brooktree device */ 477 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED); 478 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED); 479 480 /* Note: We do not free memory for RISC programs, grab buffer, vbi buffers */ 481 /* The memory is retained by the bktr_mem module so we can unload and */ 482 /* then reload the main bktr driver module */ 483 484 /* Unregister the /dev/bktrN, tunerN and vbiN devices */ 485 destroy_dev(bktr->vbidev); 486 destroy_dev(bktr->tunerdev); 487 destroy_dev(bktr->bktrdev); 488 489 /* If this is unit 0, then destroy the alias entries too */ 490#if (__FreeBSD_version >=500000) 491 if (unit == 0) { 492 destroy_dev(bktr->vbidev_alias); 493 destroy_dev(bktr->tunerdev_alias); 494 destroy_dev(bktr->bktrdev_alias); 495 } 496#endif 497 498 /* 499 * Deallocate resources. 500 */ 501 bus_teardown_intr(dev, bktr->res_irq, bktr->res_ih); 502 bus_release_resource(dev, SYS_RES_IRQ, bktr->irq_rid, bktr->res_irq); 503 bus_release_resource(dev, SYS_RES_MEMORY, bktr->mem_rid, bktr->res_mem); 504 505 return 0; 506} 507 508/* 509 * the shutdown routine. 510 */ 511static int 512bktr_shutdown( device_t dev ) 513{ 514 struct bktr_softc *bktr = device_get_softc(dev); 515 516 /* Disable the brooktree device */ 517 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED); 518 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED); 519 520 return 0; 521} 522 523 524/* 525 * Special Memory Allocation 526 */ 527vm_offset_t 528get_bktr_mem( int unit, unsigned size ) 529{ 530 vm_offset_t addr = 0; 531 532 addr = vm_page_alloc_contig(size, 0, 0xffffffff, 1<<24); 533 if (addr == 0) 534 addr = vm_page_alloc_contig(size, 0, 0xffffffff, PAGE_SIZE); 535 if (addr == 0) { 536 printf("bktr%d: Unable to allocate %d bytes of memory.\n", 537 unit, size); 538 } 539 540 return( addr ); 541} 542 543 544/*--------------------------------------------------------- 545** 546** BrookTree 848 character device driver routines 547** 548**--------------------------------------------------------- 549*/ 550 551#define VIDEO_DEV 0x00 552#define TUNER_DEV 0x01 553#define VBI_DEV 0x02 554 555#define UNIT(x) ((x) & 0x0f) 556#define FUNCTION(x) (x >> 4) 557 558/* 559 * 560 */ 561int 562bktr_open( dev_t dev, int flags, int fmt, struct thread *td ) 563{ 564 bktr_ptr_t bktr; 565 int unit; 566 int result; 567 568 unit = UNIT( minor(dev) ); 569 570 /* Get the device data */ 571 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 572 if (bktr == NULL) { 573 /* the device is no longer valid/functioning */ 574 return (ENXIO); 575 } 576 577 if (!(bktr->flags & METEOR_INITALIZED)) /* device not found */ 578 return( ENXIO ); 579 580 /* Record that the device is now busy */ 581 device_busy(devclass_get_device(bktr_devclass, unit)); 582 583 584 if (bt848_card != -1) { 585 if ((bt848_card >> 8 == unit ) && 586 ( (bt848_card & 0xff) < Bt848_MAX_CARD )) { 587 if ( bktr->bt848_card != (bt848_card & 0xff) ) { 588 bktr->bt848_card = (bt848_card & 0xff); 589 probeCard(bktr, FALSE, unit); 590 } 591 } 592 } 593 594 if (bt848_tuner != -1) { 595 if ((bt848_tuner >> 8 == unit ) && 596 ( (bt848_tuner & 0xff) < Bt848_MAX_TUNER )) { 597 if ( bktr->bt848_tuner != (bt848_tuner & 0xff) ) { 598 bktr->bt848_tuner = (bt848_tuner & 0xff); 599 probeCard(bktr, FALSE, unit); 600 } 601 } 602 } 603 604 if (bt848_reverse_mute != -1) { 605 if ((bt848_reverse_mute >> 8) == unit ) { 606 bktr->reverse_mute = bt848_reverse_mute & 0xff; 607 } 608 } 609 610 if (bt848_slow_msp_audio != -1) { 611 if ((bt848_slow_msp_audio >> 8) == unit ) { 612 bktr->slow_msp_audio = (bt848_slow_msp_audio & 0xff); 613 } 614 } 615 616 switch ( FUNCTION( minor(dev) ) ) { 617 case VIDEO_DEV: 618 result = video_open( bktr ); 619 break; 620 case TUNER_DEV: 621 result = tuner_open( bktr ); 622 break; 623 case VBI_DEV: 624 result = vbi_open( bktr ); 625 break; 626 default: 627 result = ENXIO; 628 break; 629 } 630 631 /* If there was an error opening the device, undo the busy status */ 632 if (result != 0) 633 device_unbusy(devclass_get_device(bktr_devclass, unit)); 634 return( result ); 635} 636 637 638/* 639 * 640 */ 641int 642bktr_close( dev_t dev, int flags, int fmt, struct thread *td ) 643{ 644 bktr_ptr_t bktr; 645 int unit; 646 int result; 647 648 unit = UNIT( minor(dev) ); 649 650 /* Get the device data */ 651 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 652 if (bktr == NULL) { 653 /* the device is no longer valid/functioning */ 654 return (ENXIO); 655 } 656 657 switch ( FUNCTION( minor(dev) ) ) { 658 case VIDEO_DEV: 659 result = video_close( bktr ); 660 break; 661 case TUNER_DEV: 662 result = tuner_close( bktr ); 663 break; 664 case VBI_DEV: 665 result = vbi_close( bktr ); 666 break; 667 default: 668 return (ENXIO); 669 break; 670 } 671 672 device_unbusy(devclass_get_device(bktr_devclass, unit)); 673 return( result ); 674} 675 676 677/* 678 * 679 */ 680int 681bktr_read( dev_t dev, struct uio *uio, int ioflag ) 682{ 683 bktr_ptr_t bktr; 684 int unit; 685 686 unit = UNIT(minor(dev)); 687 688 /* Get the device data */ 689 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 690 if (bktr == NULL) { 691 /* the device is no longer valid/functioning */ 692 return (ENXIO); 693 } 694 695 switch ( FUNCTION( minor(dev) ) ) { 696 case VIDEO_DEV: 697 return( video_read( bktr, unit, dev, uio ) ); 698 case VBI_DEV: 699 return( vbi_read( bktr, uio, ioflag ) ); 700 } 701 return( ENXIO ); 702} 703 704 705/* 706 * 707 */ 708int 709bktr_write( dev_t dev, struct uio *uio, int ioflag ) 710{ 711 return( EINVAL ); /* XXX or ENXIO ? */ 712} 713 714 715/* 716 * 717 */ 718int 719bktr_ioctl( dev_t dev, ioctl_cmd_t cmd, caddr_t arg, int flag, struct thread *td ) 720{ 721 bktr_ptr_t bktr; 722 int unit; 723 724 unit = UNIT(minor(dev)); 725 726 /* Get the device data */ 727 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 728 if (bktr == NULL) { 729 /* the device is no longer valid/functioning */ 730 return (ENXIO); 731 } 732 733 if (bktr->bigbuf == 0) /* no frame buffer allocated (ioctl failed) */ 734 return( ENOMEM ); 735 736 switch ( FUNCTION( minor(dev) ) ) { 737 case VIDEO_DEV: 738 return( video_ioctl( bktr, unit, cmd, arg, td ) ); 739 case TUNER_DEV: 740 return( tuner_ioctl( bktr, unit, cmd, arg, td ) ); 741 } 742 743 return( ENXIO ); 744} 745 746 747/* 748 * 749 */ 750int 751bktr_mmap( dev_t dev, vm_offset_t offset, int nprot ) 752{ 753 int unit; 754 bktr_ptr_t bktr; 755 756 unit = UNIT(minor(dev)); 757 758 if (FUNCTION(minor(dev)) > 0) /* only allow mmap on /dev/bktr[n] */ 759 return( -1 ); 760 761 /* Get the device data */ 762 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 763 if (bktr == NULL) { 764 /* the device is no longer valid/functioning */ 765 return (ENXIO); 766 } 767 768 if (nprot & PROT_EXEC) 769 return( -1 ); 770 771 if (offset < 0) 772 return( -1 ); 773 774 if (offset >= bktr->alloc_pages * PAGE_SIZE) 775 return( -1 ); 776 777 return( atop(vtophys(bktr->bigbuf) + offset) ); 778} 779 780int bktr_poll( dev_t dev, int events, struct thread *td) 781{ 782 int unit; 783 bktr_ptr_t bktr; 784 int revents = 0; 785 DECLARE_INTR_MASK(s); 786 787 unit = UNIT(minor(dev)); 788 789 /* Get the device data */ 790 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 791 if (bktr == NULL) { 792 /* the device is no longer valid/functioning */ 793 return (ENXIO); 794 } 795 796 DISABLE_INTR(s); 797 798 if (events & (POLLIN | POLLRDNORM)) { 799 800 switch ( FUNCTION( minor(dev) ) ) { 801 case VBI_DEV: 802 if(bktr->vbisize == 0) 803 selrecord(td, &bktr->vbi_select); 804 else 805 revents |= events & (POLLIN | POLLRDNORM); 806 break; 807 } 808 } 809 810 ENABLE_INTR(s); 811 812 return (revents); 813} 814 815#endif /* FreeBSD 4.x specific kernel interface routines */ 816 817/**********************************/ 818/* *** FreeBSD 2.2.x and 3.x *** */ 819/**********************************/ 820 821#if ((__FreeBSD__ == 2) || (__FreeBSD__ == 3)) 822 823static bktr_reg_t brooktree[ NBKTR ]; 824 825static const char* bktr_probe( pcici_t tag, pcidi_t type ); 826static void bktr_attach( pcici_t tag, int unit ); 827static void bktr_intr(void *arg) { common_bktr_intr(arg); } 828 829static u_long bktr_count; 830 831static struct pci_device bktr_device = { 832 "bktr", 833 bktr_probe, 834 bktr_attach, 835 &bktr_count 836}; 837 838DATA_SET (pcidevice_set, bktr_device); 839 840static d_open_t bktr_open; 841static d_close_t bktr_close; 842static d_read_t bktr_read; 843static d_write_t bktr_write; 844static d_ioctl_t bktr_ioctl; 845static d_mmap_t bktr_mmap; 846static d_poll_t bktr_poll; 847 848#define CDEV_MAJOR 92 849static struct cdevsw bktr_cdevsw = 850{ 851 bktr_open, bktr_close, bktr_read, bktr_write, 852 bktr_ioctl, nostop, nullreset, nodevtotty, 853 bktr_poll, bktr_mmap, NULL, "bktr", 854 NULL, -1 855}; 856 857/* 858 * the boot time probe routine. 859 */ 860static const char* 861bktr_probe( pcici_t tag, pcidi_t type ) 862{ 863 unsigned int rev = pci_conf_read( tag, PCIR_REVID) & 0x000000ff; 864 865 if (PCI_VENDOR(type) == PCI_VENDOR_BROOKTREE) 866 { 867 switch (PCI_PRODUCT(type)) { 868 case PCI_PRODUCT_BROOKTREE_BT848: 869 if (rev == 0x12) return("BrookTree 848A"); 870 else return("BrookTree 848"); 871 case PCI_PRODUCT_BROOKTREE_BT849: 872 return("BrookTree 849A"); 873 case PCI_PRODUCT_BROOKTREE_BT878: 874 return("BrookTree 878"); 875 case PCI_PRODUCT_BROOKTREE_BT879: 876 return("BrookTree 879"); 877 } 878 }; 879 880 return ((char *)0); 881} 882 883/* 884 * the attach routine. 885 */ 886static void 887bktr_attach( pcici_t tag, int unit ) 888{ 889 bktr_ptr_t bktr; 890 u_long latency; 891 u_long fun; 892 unsigned int rev; 893 unsigned long base; 894#ifdef BROOKTREE_IRQ 895 u_long old_irq, new_irq; 896#endif 897 898 bktr = &brooktree[unit]; 899 900 if (unit >= NBKTR) { 901 printf("brooktree%d: attach: only %d units configured.\n", 902 unit, NBKTR); 903 printf("brooktree%d: attach: invalid unit number.\n", unit); 904 return; 905 } 906 907 /* build the device name for bktr_name() */ 908 snprintf(bktr->bktr_xname, sizeof(bktr->bktr_xname), "bktr%d",unit); 909 910 /* Enable Memory Mapping */ 911 fun = pci_conf_read(tag, PCI_COMMAND_STATUS_REG); 912 pci_conf_write(tag, PCI_COMMAND_STATUS_REG, fun | 2); 913 914 /* Enable Bus Mastering */ 915 fun = pci_conf_read(tag, PCI_COMMAND_STATUS_REG); 916 pci_conf_write(tag, PCI_COMMAND_STATUS_REG, fun | 4); 917 918 bktr->tag = tag; 919 920 921 /* 922 * Map control/status registers 923 */ 924 pci_map_mem( tag, PCI_MAP_REG_START, (vm_offset_t *) &base, 925 &bktr->phys_base ); 926#if (__FreeBSD_version >= 300000) 927 bktr->memt = I386_BUS_SPACE_MEM; /* XXX should use proper bus space */ 928 bktr->memh = (bus_space_handle_t)base; /* XXX functions here */ 929#endif 930 931 /* 932 * Disable the brooktree device 933 */ 934 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED); 935 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED); 936 937#ifdef BROOKTREE_IRQ /* from the configuration file */ 938 old_irq = pci_conf_read(tag, PCI_INTERRUPT_REG); 939 pci_conf_write(tag, PCI_INTERRUPT_REG, BROOKTREE_IRQ); 940 new_irq = pci_conf_read(tag, PCI_INTERRUPT_REG); 941 printf("bktr%d: attach: irq changed from %d to %d\n", 942 unit, (old_irq & 0xff), (new_irq & 0xff)); 943#endif 944 945 /* 946 * setup the interrupt handling routine 947 */ 948 pci_map_int(tag, bktr_intr, (void*) bktr, &tty_imask); 949 950 951 /* Update the Device Control Register */ 952 /* on Bt878 and Bt879 cards */ 953 fun = pci_conf_read(tag, 0x40); 954 fun = fun | 1; /* Enable writes to the sub-system vendor ID */ 955 956#if defined( BKTR_430_FX_MODE ) 957 if (bootverbose) printf("Using 430 FX chipset compatibilty mode\n"); 958 fun = fun | 2; /* Enable Intel 430 FX compatibility mode */ 959#endif 960 961#if defined( BKTR_SIS_VIA_MODE ) 962 if (bootverbose) printf("Using SiS/VIA chipset compatibilty mode\n"); 963 fun = fun | 4; /* Enable SiS/VIA compatibility mode (usefull for 964 OPTi chipset motherboards too */ 965#endif 966 pci_conf_write(tag, 0x40, fun); 967 968 969 /* XXX call bt848_i2c dependent attach() routine */ 970#if defined(BKTR_USE_FREEBSD_SMBUS) 971 if (bt848_i2c_attach(unit, bktr, &bktr->i2c_sc)) 972 printf("bktr%d: i2c_attach: can't attach\n", unit); 973#endif 974 975 976/* 977 * PCI latency timer. 32 is a good value for 4 bus mastering slots, if 978 * you have more than four, then 16 would probably be a better value. 979 */ 980#ifndef BROOKTREE_DEF_LATENCY_VALUE 981#define BROOKTREE_DEF_LATENCY_VALUE 10 982#endif 983 latency = pci_conf_read(tag, PCI_LATENCY_TIMER); 984 latency = (latency >> 8) & 0xff; 985 if ( bootverbose ) { 986 if (latency) 987 printf("brooktree%d: PCI bus latency is", unit); 988 else 989 printf("brooktree%d: PCI bus latency was 0 changing to", 990 unit); 991 } 992 if ( !latency ) { 993 latency = BROOKTREE_DEF_LATENCY_VALUE; 994 pci_conf_write(tag, PCI_LATENCY_TIMER, latency<<8); 995 } 996 if ( bootverbose ) { 997 printf(" %d.\n", (int) latency); 998 } 999 1000 1001 /* read the pci device id and revision id */ 1002 fun = pci_conf_read(tag, PCI_ID_REG); 1003 rev = pci_conf_read(tag, PCIR_REVID) & 0x000000ff; 1004 1005 /* call the common attach code */ 1006 common_bktr_attach( bktr, unit, fun, rev ); 1007 1008} 1009 1010 1011/* 1012 * Special Memory Allocation 1013 */ 1014vm_offset_t 1015get_bktr_mem( int unit, unsigned size ) 1016{ 1017 vm_offset_t addr = 0; 1018 1019 addr = vm_page_alloc_contig(size, 0x100000, 0xffffffff, 1<<24); 1020 if (addr == 0) 1021 addr = vm_page_alloc_contig(size, 0x100000, 0xffffffff, 1022 PAGE_SIZE); 1023 if (addr == 0) { 1024 printf("bktr%d: Unable to allocate %d bytes of memory.\n", 1025 unit, size); 1026 } 1027 1028 return( addr ); 1029} 1030 1031/*--------------------------------------------------------- 1032** 1033** BrookTree 848 character device driver routines 1034** 1035**--------------------------------------------------------- 1036*/ 1037 1038 1039#define VIDEO_DEV 0x00 1040#define TUNER_DEV 0x01 1041#define VBI_DEV 0x02 1042 1043#define UNIT(x) ((x) & 0x0f) 1044#define FUNCTION(x) ((x >> 4) & 0x0f) 1045 1046 1047/* 1048 * 1049 */ 1050int 1051bktr_open( dev_t dev, int flags, int fmt, struct thread *td ) 1052{ 1053 bktr_ptr_t bktr; 1054 int unit; 1055 1056 unit = UNIT( minor(dev) ); 1057 if (unit >= NBKTR) /* unit out of range */ 1058 return( ENXIO ); 1059 1060 bktr = &(brooktree[ unit ]); 1061 1062 if (!(bktr->flags & METEOR_INITALIZED)) /* device not found */ 1063 return( ENXIO ); 1064 1065 1066 if (bt848_card != -1) { 1067 if ((bt848_card >> 8 == unit ) && 1068 ( (bt848_card & 0xff) < Bt848_MAX_CARD )) { 1069 if ( bktr->bt848_card != (bt848_card & 0xff) ) { 1070 bktr->bt848_card = (bt848_card & 0xff); 1071 probeCard(bktr, FALSE, unit); 1072 } 1073 } 1074 } 1075 1076 if (bt848_tuner != -1) { 1077 if ((bt848_tuner >> 8 == unit ) && 1078 ( (bt848_tuner & 0xff) < Bt848_MAX_TUNER )) { 1079 if ( bktr->bt848_tuner != (bt848_tuner & 0xff) ) { 1080 bktr->bt848_tuner = (bt848_tuner & 0xff); 1081 probeCard(bktr, FALSE, unit); 1082 } 1083 } 1084 } 1085 1086 if (bt848_reverse_mute != -1) { 1087 if ((bt848_reverse_mute >> 8) == unit ) { 1088 bktr->reverse_mute = bt848_reverse_mute & 0xff; 1089 } 1090 } 1091 1092 if (bt848_slow_msp_audio != -1) { 1093 if ((bt848_slow_msp_audio >> 8) == unit ) { 1094 bktr->slow_msp_audio = (bt848_slow_msp_audio & 0xff); 1095 } 1096 } 1097 1098 switch ( FUNCTION( minor(dev) ) ) { 1099 case VIDEO_DEV: 1100 return( video_open( bktr ) ); 1101 case TUNER_DEV: 1102 return( tuner_open( bktr ) ); 1103 case VBI_DEV: 1104 return( vbi_open( bktr ) ); 1105 } 1106 return( ENXIO ); 1107} 1108 1109 1110/* 1111 * 1112 */ 1113int 1114bktr_close( dev_t dev, int flags, int fmt, struct thread *td ) 1115{ 1116 bktr_ptr_t bktr; 1117 int unit; 1118 1119 unit = UNIT( minor(dev) ); 1120 if (unit >= NBKTR) /* unit out of range */ 1121 return( ENXIO ); 1122 1123 bktr = &(brooktree[ unit ]); 1124 1125 switch ( FUNCTION( minor(dev) ) ) { 1126 case VIDEO_DEV: 1127 return( video_close( bktr ) ); 1128 case TUNER_DEV: 1129 return( tuner_close( bktr ) ); 1130 case VBI_DEV: 1131 return( vbi_close( bktr ) ); 1132 } 1133 1134 return( ENXIO ); 1135} 1136 1137/* 1138 * 1139 */ 1140int 1141bktr_read( dev_t dev, struct uio *uio, int ioflag ) 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 switch ( FUNCTION( minor(dev) ) ) { 1153 case VIDEO_DEV: 1154 return( video_read( bktr, unit, dev, uio ) ); 1155 case VBI_DEV: 1156 return( vbi_read( bktr, uio, ioflag ) ); 1157 } 1158 return( ENXIO ); 1159} 1160 1161 1162/* 1163 * 1164 */ 1165int 1166bktr_write( dev_t dev, struct uio *uio, int ioflag ) 1167{ 1168 return( EINVAL ); /* XXX or ENXIO ? */ 1169} 1170 1171/* 1172 * 1173 */ 1174int 1175bktr_ioctl( dev_t dev, ioctl_cmd_t cmd, caddr_t arg, int flag, struct thread *td ) 1176{ 1177 bktr_ptr_t bktr; 1178 int unit; 1179 1180 unit = UNIT(minor(dev)); 1181 if (unit >= NBKTR) /* unit out of range */ 1182 return( ENXIO ); 1183 1184 bktr = &(brooktree[ unit ]); 1185 1186 if (bktr->bigbuf == 0) /* no frame buffer allocated (ioctl failed) */ 1187 return( ENOMEM ); 1188 1189 switch ( FUNCTION( minor(dev) ) ) { 1190 case VIDEO_DEV: 1191 return( video_ioctl( bktr, unit, cmd, arg, td ) ); 1192 case TUNER_DEV: 1193 return( tuner_ioctl( bktr, unit, cmd, arg, td ) ); 1194 } 1195 1196 return( ENXIO ); 1197} 1198 1199/* 1200 * bktr_mmap. 1201 * Note: 2.2.5/2.2.6/2.2.7/3.0 users must manually 1202 * edit the line below and change "vm_offset_t" to "int" 1203 */ 1204int bktr_mmap( dev_t dev, vm_offset_t offset, int nprot ) 1205 1206{ 1207 int unit; 1208 bktr_ptr_t bktr; 1209 1210 unit = UNIT(minor(dev)); 1211 1212 if (unit >= NBKTR || FUNCTION(minor(dev)) > 0) 1213 return( -1 ); 1214 1215 bktr = &(brooktree[ unit ]); 1216 1217 if (nprot & PROT_EXEC) 1218 return( -1 ); 1219 1220 if (offset < 0) 1221 return( -1 ); 1222 1223 if (offset >= bktr->alloc_pages * PAGE_SIZE) 1224 return( -1 ); 1225 1226 return( i386_btop(vtophys(bktr->bigbuf) + offset) ); 1227} 1228 1229int bktr_poll( dev_t dev, int events, struct thread *td) 1230{ 1231 int unit; 1232 bktr_ptr_t bktr; 1233 int revents = 0; 1234 1235 unit = UNIT(minor(dev)); 1236 1237 if (unit >= NBKTR) 1238 return( -1 ); 1239 1240 bktr = &(brooktree[ unit ]); 1241 1242 disable_intr(); 1243 1244 if (events & (POLLIN | POLLRDNORM)) { 1245 1246 switch ( FUNCTION( minor(dev) ) ) { 1247 case VBI_DEV: 1248 if(bktr->vbisize == 0) 1249 selrecord(p, &bktr->vbi_select); 1250 else 1251 revents |= events & (POLLIN | POLLRDNORM); 1252 break; 1253 } 1254 } 1255 1256 enable_intr(); 1257 1258 return (revents); 1259} 1260 1261 1262#endif /* FreeBSD 2.2.x and 3.x specific kernel interface routines */ 1263 1264 1265/*****************/ 1266/* *** BSDI *** */ 1267/*****************/ 1268 1269#if defined(__bsdi__) 1270#endif /* __bsdi__ BSDI specific kernel interface routines */ 1271 1272 1273/*****************************/ 1274/* *** OpenBSD / NetBSD *** */ 1275/*****************************/ 1276#if defined(__NetBSD__) || defined(__OpenBSD__) 1277 1278#define IPL_VIDEO IPL_BIO /* XXX */ 1279 1280static int bktr_intr(void *arg) { return common_bktr_intr(arg); } 1281 1282#define bktr_open bktropen 1283#define bktr_close bktrclose 1284#define bktr_read bktrread 1285#define bktr_write bktrwrite 1286#define bktr_ioctl bktrioctl 1287#define bktr_mmap bktrmmap 1288 1289vm_offset_t vm_page_alloc_contig(vm_offset_t, vm_offset_t, 1290 vm_offset_t, vm_offset_t); 1291 1292#if defined(__OpenBSD__) 1293static int bktr_probe __P((struct device *, void *, void *)); 1294#else 1295static int bktr_probe __P((struct device *, struct cfdata *, void *)); 1296#endif 1297static void bktr_attach __P((struct device *, struct device *, void *)); 1298 1299struct cfattach bktr_ca = { 1300 sizeof(struct bktr_softc), bktr_probe, bktr_attach 1301}; 1302 1303#if defined(__NetBSD__) 1304extern struct cfdriver bktr_cd; 1305#else 1306struct cfdriver bktr_cd = { 1307 NULL, "bktr", DV_DULL 1308}; 1309#endif 1310 1311int 1312bktr_probe(parent, match, aux) 1313 struct device *parent; 1314#if defined(__OpenBSD__) 1315 void *match; 1316#else 1317 struct cfdata *match; 1318#endif 1319 void *aux; 1320{ 1321 struct pci_attach_args *pa = aux; 1322 1323 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_BROOKTREE && 1324 (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT848 || 1325 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT849 || 1326 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT878 || 1327 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT879)) 1328 return 1; 1329 1330 return 0; 1331} 1332 1333 1334/* 1335 * the attach routine. 1336 */ 1337static void 1338bktr_attach(struct device *parent, struct device *self, void *aux) 1339{ 1340 bktr_ptr_t bktr; 1341 u_long latency; 1342 u_long fun; 1343 unsigned int rev; 1344 1345#if defined(__OpenBSD__) 1346 struct pci_attach_args *pa = aux; 1347 pci_chipset_tag_t pc = pa->pa_pc; 1348 1349 pci_intr_handle_t ih; 1350 const char *intrstr; 1351 int retval; 1352 int unit; 1353 1354 bktr = (bktr_ptr_t)self; 1355 unit = bktr->bktr_dev.dv_unit; 1356 1357 bktr->pc = pa->pa_pc; 1358 bktr->tag = pa->pa_tag; 1359 bktr->dmat = pa->pa_dmat; 1360 1361 /* 1362 * map memory 1363 */ 1364 bktr->memt = pa->pa_memt; 1365 retval = pci_mem_find(pc, pa->pa_tag, PCI_MAPREG_START, 1366 &bktr->phys_base, &bktr->obmemsz, NULL); 1367 if (!retval) 1368 retval = bus_space_map(pa->pa_memt, bktr->phys_base, 1369 bktr->obmemsz, 0, &bktr->memh); 1370 if (retval) { 1371 printf(": couldn't map memory\n"); 1372 return; 1373 } 1374 1375 1376 /* 1377 * map interrupt 1378 */ 1379 if (pci_intr_map(pa->pa_pc, pa->pa_intrtag, pa->pa_intrpin, 1380 pa->pa_intrline, &ih)) { 1381 printf(": couldn't map interrupt\n"); 1382 return; 1383 } 1384 intrstr = pci_intr_string(pa->pa_pc, ih); 1385 1386 bktr->ih = pci_intr_establish(pa->pa_pc, ih, IPL_VIDEO, 1387 bktr_intr, bktr, bktr->bktr_dev.dv_xname); 1388 if (bktr->ih == NULL) { 1389 printf(": couldn't establish interrupt"); 1390 if (intrstr != NULL) 1391 printf(" at %s", intrstr); 1392 printf("\n"); 1393 return; 1394 } 1395 1396 if (intrstr != NULL) 1397 printf(": %s\n", intrstr); 1398#endif /* __OpenBSD__ */ 1399 1400#if defined(__NetBSD__) 1401 struct pci_attach_args *pa = aux; 1402 pci_intr_handle_t ih; 1403 const char *intrstr; 1404 int retval; 1405 int unit; 1406 1407 bktr = (bktr_ptr_t)self; 1408 unit = bktr->bktr_dev.dv_unit; 1409 bktr->dmat = pa->pa_dmat; 1410 1411 printf("\n"); 1412 1413 /* 1414 * map memory 1415 */ 1416 retval = pci_mapreg_map(pa, PCI_MAPREG_START, 1417 PCI_MAPREG_TYPE_MEM 1418 | PCI_MAPREG_MEM_TYPE_32BIT, 0, 1419 &bktr->memt, &bktr->memh, NULL, 1420 &bktr->obmemsz); 1421 DPR(("pci_mapreg_map: memt %x, memh %x, size %x\n", 1422 bktr->memt, (u_int)bktr->memh, (u_int)bktr->obmemsz)); 1423 if (retval) { 1424 printf("%s: couldn't map memory\n", bktr_name(bktr)); 1425 return; 1426 } 1427 1428 /* 1429 * Disable the brooktree device 1430 */ 1431 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED); 1432 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED); 1433 1434 /* 1435 * map interrupt 1436 */ 1437 if (pci_intr_map(pa->pa_pc, pa->pa_intrtag, pa->pa_intrpin, 1438 pa->pa_intrline, &ih)) { 1439 printf("%s: couldn't map interrupt\n", 1440 bktr_name(bktr)); 1441 return; 1442 } 1443 intrstr = pci_intr_string(pa->pa_pc, ih); 1444 bktr->ih = pci_intr_establish(pa->pa_pc, ih, IPL_VIDEO, 1445 bktr_intr, bktr); 1446 if (bktr->ih == NULL) { 1447 printf("%s: couldn't establish interrupt", 1448 bktr_name(bktr)); 1449 if (intrstr != NULL) 1450 printf(" at %s", intrstr); 1451 printf("\n"); 1452 return; 1453 } 1454 if (intrstr != NULL) 1455 printf("%s: interrupting at %s\n", bktr_name(bktr), 1456 intrstr); 1457#endif /* __NetBSD__ */ 1458 1459/* 1460 * PCI latency timer. 32 is a good value for 4 bus mastering slots, if 1461 * you have more than four, then 16 would probably be a better value. 1462 */ 1463#ifndef BROOKTREE_DEF_LATENCY_VALUE 1464#define BROOKTREE_DEF_LATENCY_VALUE 10 1465#endif 1466 latency = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_LATENCY_TIMER); 1467 latency = (latency >> 8) & 0xff; 1468 1469 if (!latency) { 1470 if (bootverbose) { 1471 printf("%s: PCI bus latency was 0 changing to %d", 1472 bktr_name(bktr), BROOKTREE_DEF_LATENCY_VALUE); 1473 } 1474 latency = BROOKTREE_DEF_LATENCY_VALUE; 1475 pci_conf_write(pa->pa_pc, pa->pa_tag, 1476 PCI_LATENCY_TIMER, latency<<8); 1477 } 1478 1479 1480 /* Enabled Bus Master 1481 XXX: check if all old DMA is stopped first (e.g. after warm 1482 boot) */ 1483 fun = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); 1484 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, 1485 fun | PCI_COMMAND_MASTER_ENABLE); 1486 1487 /* read the pci id and determine the card type */ 1488 fun = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_ID_REG); 1489 rev = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_CLASS_REG) & 0x000000ff; 1490 1491 common_bktr_attach(bktr, unit, fun, rev); 1492} 1493 1494 1495/* 1496 * Special Memory Allocation 1497 */ 1498vm_offset_t 1499get_bktr_mem(bktr, dmapp, size) 1500 bktr_ptr_t bktr; 1501 bus_dmamap_t *dmapp; 1502 unsigned int size; 1503{ 1504 bus_dma_tag_t dmat = bktr->dmat; 1505 bus_dma_segment_t seg; 1506 bus_size_t align; 1507 int rseg; 1508 caddr_t kva; 1509 1510 /* 1511 * Allocate a DMA area 1512 */ 1513 align = 1 << 24; 1514 if (bus_dmamem_alloc(dmat, size, align, 0, &seg, 1, 1515 &rseg, BUS_DMA_NOWAIT)) { 1516 align = PAGE_SIZE; 1517 if (bus_dmamem_alloc(dmat, size, align, 0, &seg, 1, 1518 &rseg, BUS_DMA_NOWAIT)) { 1519 printf("%s: Unable to dmamem_alloc of %d bytes\n", 1520 bktr_name(bktr), size); 1521 return 0; 1522 } 1523 } 1524 if (bus_dmamem_map(dmat, &seg, rseg, size, 1525 &kva, BUS_DMA_NOWAIT|BUS_DMA_COHERENT)) { 1526 printf("%s: Unable to dmamem_map of %d bytes\n", 1527 bktr_name(bktr), size); 1528 bus_dmamem_free(dmat, &seg, rseg); 1529 return 0; 1530 } 1531#ifdef __OpenBSD__ 1532 bktr->dm_mapsize = size; 1533#endif 1534 /* 1535 * Create and locd the DMA map for the DMA area 1536 */ 1537 if (bus_dmamap_create(dmat, size, 1, size, 0, BUS_DMA_NOWAIT, dmapp)) { 1538 printf("%s: Unable to dmamap_create of %d bytes\n", 1539 bktr_name(bktr), size); 1540 bus_dmamem_unmap(dmat, kva, size); 1541 bus_dmamem_free(dmat, &seg, rseg); 1542 return 0; 1543 } 1544 if (bus_dmamap_load(dmat, *dmapp, kva, size, NULL, BUS_DMA_NOWAIT)) { 1545 printf("%s: Unable to dmamap_load of %d bytes\n", 1546 bktr_name(bktr), size); 1547 bus_dmamem_unmap(dmat, kva, size); 1548 bus_dmamem_free(dmat, &seg, rseg); 1549 bus_dmamap_destroy(dmat, *dmapp); 1550 return 0; 1551 } 1552 return (vm_offset_t)kva; 1553} 1554 1555void 1556free_bktr_mem(bktr, dmap, kva) 1557 bktr_ptr_t bktr; 1558 bus_dmamap_t dmap; 1559 vm_offset_t kva; 1560{ 1561 bus_dma_tag_t dmat = bktr->dmat; 1562 1563#ifdef __NetBSD__ 1564 bus_dmamem_unmap(dmat, (caddr_t)kva, dmap->dm_mapsize); 1565#else 1566 bus_dmamem_unmap(dmat, (caddr_t)kva, bktr->dm_mapsize); 1567#endif 1568 bus_dmamem_free(dmat, dmap->dm_segs, 1); 1569 bus_dmamap_destroy(dmat, dmap); 1570} 1571 1572 1573/*--------------------------------------------------------- 1574** 1575** BrookTree 848 character device driver routines 1576** 1577**--------------------------------------------------------- 1578*/ 1579 1580 1581#define VIDEO_DEV 0x00 1582#define TUNER_DEV 0x01 1583#define VBI_DEV 0x02 1584 1585#define UNIT(x) (minor((x) & 0x0f)) 1586#define FUNCTION(x) (minor((x >> 4) & 0x0f)) 1587 1588/* 1589 * 1590 */ 1591int 1592bktr_open(dev_t dev, int flags, int fmt, struct thread *td) 1593{ 1594 bktr_ptr_t bktr; 1595 int unit; 1596 1597 unit = UNIT(dev); 1598 1599 /* unit out of range */ 1600 if ((unit > bktr_cd.cd_ndevs) || (bktr_cd.cd_devs[unit] == NULL)) 1601 return(ENXIO); 1602 1603 bktr = bktr_cd.cd_devs[unit]; 1604 1605 if (!(bktr->flags & METEOR_INITALIZED)) /* device not found */ 1606 return(ENXIO); 1607 1608 switch (FUNCTION(dev)) { 1609 case VIDEO_DEV: 1610 return(video_open(bktr)); 1611 case TUNER_DEV: 1612 return(tuner_open(bktr)); 1613 case VBI_DEV: 1614 return(vbi_open(bktr)); 1615 } 1616 1617 return(ENXIO); 1618} 1619 1620 1621/* 1622 * 1623 */ 1624int 1625bktr_close(dev_t dev, int flags, int fmt, struct thread *td) 1626{ 1627 bktr_ptr_t bktr; 1628 int unit; 1629 1630 unit = UNIT(dev); 1631 1632 bktr = bktr_cd.cd_devs[unit]; 1633 1634 switch (FUNCTION(dev)) { 1635 case VIDEO_DEV: 1636 return(video_close(bktr)); 1637 case TUNER_DEV: 1638 return(tuner_close(bktr)); 1639 case VBI_DEV: 1640 return(vbi_close(bktr)); 1641 } 1642 1643 return(ENXIO); 1644} 1645 1646/* 1647 * 1648 */ 1649int 1650bktr_read(dev_t dev, struct uio *uio, int ioflag) 1651{ 1652 bktr_ptr_t bktr; 1653 int unit; 1654 1655 unit = UNIT(dev); 1656 1657 bktr = bktr_cd.cd_devs[unit]; 1658 1659 switch (FUNCTION(dev)) { 1660 case VIDEO_DEV: 1661 return(video_read(bktr, unit, dev, uio)); 1662 case VBI_DEV: 1663 return(vbi_read(bktr, uio, ioflag)); 1664 } 1665 1666 return(ENXIO); 1667} 1668 1669 1670/* 1671 * 1672 */ 1673int 1674bktr_write(dev_t dev, struct uio *uio, int ioflag) 1675{ 1676 /* operation not supported */ 1677 return(EOPNOTSUPP); 1678} 1679 1680/* 1681 * 1682 */ 1683int 1684bktr_ioctl(dev_t dev, ioctl_cmd_t cmd, caddr_t arg, int flag, struct thread *td) 1685{ 1686 bktr_ptr_t bktr; 1687 int unit; 1688 1689 unit = UNIT(dev); 1690 1691 bktr = bktr_cd.cd_devs[unit]; 1692 1693 if (bktr->bigbuf == 0) /* no frame buffer allocated (ioctl failed) */ 1694 return(ENOMEM); 1695 1696 switch (FUNCTION(dev)) { 1697 case VIDEO_DEV: 1698 return(video_ioctl(bktr, unit, cmd, arg, pr)); 1699 case TUNER_DEV: 1700 return(tuner_ioctl(bktr, unit, cmd, arg, pr)); 1701 } 1702 1703 return(ENXIO); 1704} 1705 1706/* 1707 * 1708 */ 1709paddr_t 1710bktr_mmap(dev_t dev, off_t offset, int nprot) 1711{ 1712 int unit; 1713 bktr_ptr_t bktr; 1714 1715 unit = UNIT(dev); 1716 1717 if (FUNCTION(dev) > 0) /* only allow mmap on /dev/bktr[n] */ 1718 return(-1); 1719 1720 bktr = bktr_cd.cd_devs[unit]; 1721 1722 if ((vaddr_t)offset < 0) 1723 return(-1); 1724 1725 if ((vaddr_t)offset >= bktr->alloc_pages * PAGE_SIZE) 1726 return(-1); 1727 1728#ifdef __NetBSD__ 1729 return (bus_dmamem_mmap(bktr->dmat, bktr->dm_mem->dm_segs, 1, 1730 (vaddr_t)offset, nprot, BUS_DMA_WAITOK)); 1731#else 1732 return(i386_btop(vtophys(bktr->bigbuf) + offset)); 1733#endif 1734} 1735 1736#endif /* __NetBSD__ || __OpenBSD__ */ 1737