bktr_os.c revision 67164
1/* $FreeBSD: head/sys/dev/bktr/bktr_os.c 67164 2000-10-15 14:19:01Z 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#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 <pci/pcivar.h> 99#include <pci/pcireg.h> 100 101#include <sys/sysctl.h> 102int bt848_card = -1; 103int bt848_tuner = -1; 104int bt848_reverse_mute = -1; 105int bt848_format = -1; 106int bt848_slow_msp_audio = -1; 107 108SYSCTL_NODE(_hw, OID_AUTO, bt848, CTLFLAG_RW, 0, "Bt848 Driver mgmt"); 109SYSCTL_INT(_hw_bt848, OID_AUTO, card, CTLFLAG_RW, &bt848_card, -1, ""); 110SYSCTL_INT(_hw_bt848, OID_AUTO, tuner, CTLFLAG_RW, &bt848_tuner, -1, ""); 111SYSCTL_INT(_hw_bt848, OID_AUTO, reverse_mute, CTLFLAG_RW, &bt848_reverse_mute, -1, ""); 112SYSCTL_INT(_hw_bt848, OID_AUTO, format, CTLFLAG_RW, &bt848_format, -1, ""); 113SYSCTL_INT(_hw_bt848, OID_AUTO, slow_msp_audio, CTLFLAG_RW, &bt848_slow_msp_audio, -1, ""); 114 115#if (__FreeBSD__ == 2) 116#define PCIR_REVID PCI_CLASS_REG 117#endif 118 119#endif /* end freebsd section */ 120 121 122 123/****************/ 124/* *** BSDI *** */ 125/****************/ 126#ifdef __bsdi__ 127#endif /* __bsdi__ */ 128 129 130/**************************/ 131/* *** OpenBSD/NetBSD *** */ 132/**************************/ 133#if defined(__NetBSD__) || defined(__OpenBSD__) 134 135#include <sys/param.h> 136#include <sys/systm.h> 137#include <sys/conf.h> 138#include <sys/uio.h> 139#include <sys/kernel.h> 140#include <sys/signalvar.h> 141#include <sys/mman.h> 142#include <sys/poll.h> 143#include <sys/select.h> 144#include <sys/vnode.h> 145 146#include <vm/vm.h> 147 148#ifndef __NetBSD__ 149#include <vm/vm_kern.h> 150#include <vm/pmap.h> 151#include <vm/vm_extern.h> 152#endif 153 154#include <sys/device.h> 155#include <dev/pci/pcivar.h> 156#include <dev/pci/pcireg.h> 157#include <dev/pci/pcidevs.h> 158 159#define BKTR_DEBUG 160#ifdef BKTR_DEBUG 161int bktr_debug = 0; 162#define DPR(x) (bktr_debug ? printf x : 0) 163#else 164#define DPR(x) 165#endif 166#endif /* __NetBSD__ || __OpenBSD__ */ 167 168 169#ifdef __NetBSD__ 170#include <dev/ic/bt8xx.h> /* NetBSD location for .h files */ 171#include <dev/pci/bktr/bktr_reg.h> 172#include <dev/pci/bktr/bktr_tuner.h> 173#include <dev/pci/bktr/bktr_card.h> 174#include <dev/pci/bktr/bktr_audio.h> 175#include <dev/pci/bktr/bktr_core.h> 176#include <dev/pci/bktr/bktr_os.h> 177#else /* Traditional location for .h files */ 178#include <machine/ioctl_meteor.h> 179#include <machine/ioctl_bt848.h> /* extensions to ioctl_meteor.h */ 180#include <dev/bktr/bktr_reg.h> 181#include <dev/bktr/bktr_tuner.h> 182#include <dev/bktr/bktr_card.h> 183#include <dev/bktr/bktr_audio.h> 184#include <dev/bktr/bktr_core.h> 185#include <dev/bktr/bktr_os.h> 186#if defined(BKTR_USE_FREEBSD_SMBUS) 187#include <dev/bktr/bktr_i2c.h> 188#endif 189#endif 190 191 192 193/****************************/ 194/* *** FreeBSD 4.x code *** */ 195/****************************/ 196#if (__FreeBSD_version >= 400000) 197 198static int bktr_probe( device_t dev ); 199static int bktr_attach( device_t dev ); 200static int bktr_detach( device_t dev ); 201static int bktr_shutdown( device_t dev ); 202static void bktr_intr(void *arg) { common_bktr_intr(arg); } 203 204static device_method_t bktr_methods[] = { 205 /* Device interface */ 206 DEVMETHOD(device_probe, bktr_probe), 207 DEVMETHOD(device_attach, bktr_attach), 208 DEVMETHOD(device_detach, bktr_detach), 209 DEVMETHOD(device_shutdown, bktr_shutdown), 210 211 { 0, 0 } 212}; 213 214static driver_t bktr_driver = { 215 "bktr", 216 bktr_methods, 217 sizeof(struct bktr_softc), 218}; 219 220static devclass_t bktr_devclass; 221 222static d_open_t bktr_open; 223static d_close_t bktr_close; 224static d_read_t bktr_read; 225static d_write_t bktr_write; 226static d_ioctl_t bktr_ioctl; 227static d_mmap_t bktr_mmap; 228static d_poll_t bktr_poll; 229 230#define CDEV_MAJOR 92 231static struct cdevsw bktr_cdevsw = { 232 /* open */ bktr_open, 233 /* close */ bktr_close, 234 /* read */ bktr_read, 235 /* write */ bktr_write, 236 /* ioctl */ bktr_ioctl, 237 /* poll */ bktr_poll, 238 /* mmap */ bktr_mmap, 239 /* strategy */ nostrategy, 240 /* name */ "bktr", 241 /* maj */ CDEV_MAJOR, 242 /* dump */ nodump, 243 /* psize */ nopsize, 244 /* flags */ 0, 245 /* bmaj */ -1 246}; 247 248DRIVER_MODULE(bktr, pci, bktr_driver, bktr_devclass, 0, 0); 249MODULE_DEPEND(bktr, bktr_mem, 1,1,1); 250MODULE_VERSION(bktr, 1); 251 252 253/* 254 * the boot time probe routine. 255 */ 256static int 257bktr_probe( device_t dev ) 258{ 259 unsigned int type = pci_get_devid(dev); 260 unsigned int rev = pci_get_revid(dev); 261 262 switch (type) { 263 case BROOKTREE_848_PCI_ID: 264 if (rev == 0x12) device_set_desc(dev, "BrookTree 848A"); 265 else device_set_desc(dev, "BrookTree 848"); 266 return 0; 267 case BROOKTREE_849_PCI_ID: 268 device_set_desc(dev, "BrookTree 849A"); 269 return 0; 270 case BROOKTREE_878_PCI_ID: 271 device_set_desc(dev, "BrookTree 878"); 272 return 0; 273 case BROOKTREE_879_PCI_ID: 274 device_set_desc(dev, "BrookTree 879"); 275 return 0; 276 }; 277 278 return ENXIO; 279} 280 281 282/* 283 * the attach routine. 284 */ 285static int 286bktr_attach( device_t dev ) 287{ 288 u_long latency; 289 u_long fun; 290 u_long val; 291 unsigned int rev; 292 unsigned int unit; 293 int error = 0; 294#ifdef BROOKTREE_IRQ 295 u_long old_irq, new_irq; 296#endif 297 298 struct bktr_softc *bktr = device_get_softc(dev); 299 300 unit = device_get_unit(dev); 301 302 /* build the device name for bktr_name() */ 303 snprintf(bktr->bktr_xname, sizeof(bktr->bktr_xname), "bktr%d",unit); 304 305 /* 306 * Enable bus mastering and Memory Mapped device 307 */ 308 val = pci_read_config(dev, PCIR_COMMAND, 4); 309 val |= (PCIM_CMD_MEMEN|PCIM_CMD_BUSMASTEREN); 310 pci_write_config(dev, PCIR_COMMAND, val, 4); 311 312 /* 313 * Map control/status registers. 314 */ 315 bktr->mem_rid = PCIR_MAPS; 316 bktr->res_mem = bus_alloc_resource(dev, SYS_RES_MEMORY, &bktr->mem_rid, 317 0, ~0, 1, RF_ACTIVE); 318 319 320 if (!bktr->res_mem) { 321 device_printf(dev, "could not map memory\n"); 322 error = ENXIO; 323 goto fail; 324 } 325 bktr->memt = rman_get_bustag(bktr->res_mem); 326 bktr->memh = rman_get_bushandle(bktr->res_mem); 327 328 329 /* 330 * Disable the brooktree device 331 */ 332 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED); 333 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED); 334 335 336#ifdef BROOKTREE_IRQ /* from the configuration file */ 337 old_irq = pci_conf_read(tag, PCI_INTERRUPT_REG); 338 pci_conf_write(tag, PCI_INTERRUPT_REG, BROOKTREE_IRQ); 339 new_irq = pci_conf_read(tag, PCI_INTERRUPT_REG); 340 printf("bktr%d: attach: irq changed from %d to %d\n", 341 unit, (old_irq & 0xff), (new_irq & 0xff)); 342#endif 343 344 /* 345 * Allocate our interrupt. 346 */ 347 bktr->irq_rid = 0; 348 bktr->res_irq = bus_alloc_resource(dev, SYS_RES_IRQ, &bktr->irq_rid, 349 0, ~0, 1, RF_SHAREABLE | RF_ACTIVE); 350 if (bktr->res_irq == NULL) { 351 device_printf(dev, "could not map interrupt\n"); 352 error = ENXIO; 353 goto fail; 354 } 355 356 error = bus_setup_intr(dev, bktr->res_irq, INTR_TYPE_TTY, 357 bktr_intr, bktr, &bktr->res_ih); 358 if (error) { 359 device_printf(dev, "could not setup irq\n"); 360 goto fail; 361 362 } 363 364 365 /* Update the Device Control Register */ 366 /* on Bt878 and Bt879 cards */ 367 fun = pci_read_config( dev, 0x40, 2); 368 fun = fun | 1; /* Enable writes to the sub-system vendor ID */ 369 370#if defined( BKTR_430_FX_MODE ) 371 if (bootverbose) printf("Using 430 FX chipset compatibilty mode\n"); 372 fun = fun | 2; /* Enable Intel 430 FX compatibility mode */ 373#endif 374 375#if defined( BKTR_SIS_VIA_MODE ) 376 if (bootverbose) printf("Using SiS/VIA chipset compatibilty mode\n"); 377 fun = fun | 4; /* Enable SiS/VIA compatibility mode (usefull for 378 OPTi chipset motherboards too */ 379#endif 380 pci_write_config(dev, 0x40, fun, 2); 381 382 383 /* XXX call bt848_i2c dependent attach() routine */ 384#if defined(BKTR_USE_FREEBSD_SMBUS) 385 if (bt848_i2c_attach(unit, bktr, &bktr->i2c_sc)) 386 printf("bktr%d: i2c_attach: can't attach\n", unit); 387#endif 388 389 390/* 391 * PCI latency timer. 32 is a good value for 4 bus mastering slots, if 392 * you have more than four, then 16 would probably be a better value. 393 */ 394#ifndef BROOKTREE_DEF_LATENCY_VALUE 395#define BROOKTREE_DEF_LATENCY_VALUE 10 396#endif 397 latency = pci_read_config(dev, PCI_LATENCY_TIMER, 4); 398 latency = (latency >> 8) & 0xff; 399 if ( bootverbose ) { 400 if (latency) 401 printf("brooktree%d: PCI bus latency is", unit); 402 else 403 printf("brooktree%d: PCI bus latency was 0 changing to", 404 unit); 405 } 406 if ( !latency ) { 407 latency = BROOKTREE_DEF_LATENCY_VALUE; 408 pci_write_config(dev, PCI_LATENCY_TIMER, latency<<8, 4); 409 } 410 if ( bootverbose ) { 411 printf(" %d.\n", (int) latency); 412 } 413 414 /* read the pci device id and revision id */ 415 fun = pci_get_devid(dev); 416 rev = pci_get_revid(dev); 417 418 /* call the common attach code */ 419 common_bktr_attach( bktr, unit, fun, rev ); 420 421 make_dev(&bktr_cdevsw, unit, 0, 0, 0444, "bktr%d", unit); 422 make_dev(&bktr_cdevsw, unit+16, 0, 0, 0444, "tuner%d", unit); 423 make_dev(&bktr_cdevsw, unit+32, 0, 0, 0444, "vbi%d", unit); 424 425 return 0; 426 427fail: 428 if (bktr->res_irq) 429 bus_release_resource(dev, SYS_RES_IRQ, bktr->irq_rid, bktr->res_irq); 430 if (bktr->res_mem) 431 bus_release_resource(dev, SYS_RES_IRQ, bktr->mem_rid, bktr->res_mem); 432 return error; 433 434} 435 436/* 437 * the detach routine. 438 */ 439static int 440bktr_detach( device_t dev ) 441{ 442 struct bktr_softc *bktr = device_get_softc(dev); 443 444 /* Disable the brooktree device */ 445 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED); 446 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED); 447 448 /* FIXME - Free memory for RISC programs, grab buffer, vbi buffers */ 449 450 /* 451 * Deallocate resources. 452 */ 453 bus_teardown_intr(dev, bktr->res_irq, bktr->res_ih); 454 bus_release_resource(dev, SYS_RES_IRQ, bktr->irq_rid, bktr->res_irq); 455 bus_release_resource(dev, SYS_RES_MEMORY, bktr->mem_rid, bktr->res_mem); 456 457 return 0; 458} 459 460/* 461 * the shutdown routine. 462 */ 463static int 464bktr_shutdown( device_t dev ) 465{ 466 struct bktr_softc *bktr = device_get_softc(dev); 467 468 /* Disable the brooktree device */ 469 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED); 470 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED); 471 472 return 0; 473} 474 475 476/* 477 * Special Memory Allocation 478 */ 479vm_offset_t 480get_bktr_mem( int unit, unsigned size ) 481{ 482 vm_offset_t addr = 0; 483 484 addr = vm_page_alloc_contig(size, 0, 0xffffffff, 1<<24); 485 if (addr == 0) 486 addr = vm_page_alloc_contig(size, 0, 0xffffffff, PAGE_SIZE); 487 if (addr == 0) { 488 printf("bktr%d: Unable to allocate %d bytes of memory.\n", 489 unit, size); 490 } 491 492 return( addr ); 493} 494 495 496/*--------------------------------------------------------- 497** 498** BrookTree 848 character device driver routines 499** 500**--------------------------------------------------------- 501*/ 502 503#define VIDEO_DEV 0x00 504#define TUNER_DEV 0x01 505#define VBI_DEV 0x02 506 507#define UNIT(x) ((x) & 0x0f) 508#define FUNCTION(x) (x >> 4) 509 510/* 511 * 512 */ 513int 514bktr_open( dev_t dev, int flags, int fmt, struct proc *p ) 515{ 516 bktr_ptr_t bktr; 517 int unit; 518 int result; 519 520 unit = UNIT( minor(dev) ); 521 522 /* Get the device data */ 523 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 524 if (bktr == NULL) { 525 /* the device is no longer valid/functioning */ 526 return (ENXIO); 527 } 528 529 if (!(bktr->flags & METEOR_INITALIZED)) /* device not found */ 530 return( ENXIO ); 531 532 /* Record that the device is now busy */ 533 device_busy(devclass_get_device(bktr_devclass, unit)); 534 535 536 if (bt848_card != -1) { 537 if ((bt848_card >> 8 == unit ) && 538 ( (bt848_card & 0xff) < Bt848_MAX_CARD )) { 539 if ( bktr->bt848_card != (bt848_card & 0xff) ) { 540 bktr->bt848_card = (bt848_card & 0xff); 541 probeCard(bktr, FALSE, unit); 542 } 543 } 544 } 545 546 if (bt848_tuner != -1) { 547 if ((bt848_tuner >> 8 == unit ) && 548 ( (bt848_tuner & 0xff) < Bt848_MAX_TUNER )) { 549 if ( bktr->bt848_tuner != (bt848_tuner & 0xff) ) { 550 bktr->bt848_tuner = (bt848_tuner & 0xff); 551 probeCard(bktr, FALSE, unit); 552 } 553 } 554 } 555 556 if (bt848_reverse_mute != -1) { 557 if ((bt848_reverse_mute >> 8) == unit ) { 558 bktr->reverse_mute = bt848_reverse_mute & 0xff; 559 } 560 } 561 562 if (bt848_slow_msp_audio != -1) { 563 if ((bt848_slow_msp_audio >> 8) == unit ) { 564 bktr->slow_msp_audio = (bt848_slow_msp_audio & 0xff); 565 } 566 } 567 568 switch ( FUNCTION( minor(dev) ) ) { 569 case VIDEO_DEV: 570 result = video_open( bktr ); 571 break; 572 case TUNER_DEV: 573 result = tuner_open( bktr ); 574 break; 575 case VBI_DEV: 576 result = vbi_open( bktr ); 577 break; 578 default: 579 result = ENXIO; 580 break; 581 } 582 583 /* If there was an error opening the device, undo the busy status */ 584 if (result != 0) 585 device_unbusy(devclass_get_device(bktr_devclass, unit)); 586 return( result ); 587} 588 589 590/* 591 * 592 */ 593int 594bktr_close( dev_t dev, int flags, int fmt, struct proc *p ) 595{ 596 bktr_ptr_t bktr; 597 int unit; 598 int result; 599 600 unit = UNIT( minor(dev) ); 601 602 /* Get the device data */ 603 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 604 if (bktr == NULL) { 605 /* the device is no longer valid/functioning */ 606 return (ENXIO); 607 } 608 609 switch ( FUNCTION( minor(dev) ) ) { 610 case VIDEO_DEV: 611 result = video_close( bktr ); 612 break; 613 case TUNER_DEV: 614 result = tuner_close( bktr ); 615 break; 616 case VBI_DEV: 617 result = vbi_close( bktr ); 618 break; 619 default: 620 return (ENXIO); 621 break; 622 } 623 624 device_unbusy(devclass_get_device(bktr_devclass, unit)); 625 return( result ); 626} 627 628 629/* 630 * 631 */ 632int 633bktr_read( dev_t dev, struct uio *uio, int ioflag ) 634{ 635 bktr_ptr_t bktr; 636 int unit; 637 638 unit = UNIT(minor(dev)); 639 640 /* Get the device data */ 641 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 642 if (bktr == NULL) { 643 /* the device is no longer valid/functioning */ 644 return (ENXIO); 645 } 646 647 switch ( FUNCTION( minor(dev) ) ) { 648 case VIDEO_DEV: 649 return( video_read( bktr, unit, dev, uio ) ); 650 case VBI_DEV: 651 return( vbi_read( bktr, uio, ioflag ) ); 652 } 653 return( ENXIO ); 654} 655 656 657/* 658 * 659 */ 660int 661bktr_write( dev_t dev, struct uio *uio, int ioflag ) 662{ 663 return( EINVAL ); /* XXX or ENXIO ? */ 664} 665 666 667/* 668 * 669 */ 670int 671bktr_ioctl( dev_t dev, ioctl_cmd_t cmd, caddr_t arg, int flag, struct proc* pr ) 672{ 673 bktr_ptr_t bktr; 674 int unit; 675 676 unit = UNIT(minor(dev)); 677 678 /* Get the device data */ 679 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 680 if (bktr == NULL) { 681 /* the device is no longer valid/functioning */ 682 return (ENXIO); 683 } 684 685 if (bktr->bigbuf == 0) /* no frame buffer allocated (ioctl failed) */ 686 return( ENOMEM ); 687 688 switch ( FUNCTION( minor(dev) ) ) { 689 case VIDEO_DEV: 690 return( video_ioctl( bktr, unit, cmd, arg, pr ) ); 691 case TUNER_DEV: 692 return( tuner_ioctl( bktr, unit, cmd, arg, pr ) ); 693 } 694 695 return( ENXIO ); 696} 697 698 699/* 700 * 701 */ 702int 703bktr_mmap( dev_t dev, vm_offset_t offset, int nprot ) 704{ 705 int unit; 706 bktr_ptr_t bktr; 707 708 unit = UNIT(minor(dev)); 709 710 if (FUNCTION(minor(dev)) > 0) /* only allow mmap on /dev/bktr[n] */ 711 return( -1 ); 712 713 /* Get the device data */ 714 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 715 if (bktr == NULL) { 716 /* the device is no longer valid/functioning */ 717 return (ENXIO); 718 } 719 720 if (nprot & PROT_EXEC) 721 return( -1 ); 722 723 if (offset < 0) 724 return( -1 ); 725 726 if (offset >= bktr->alloc_pages * PAGE_SIZE) 727 return( -1 ); 728 729 return( atop(vtophys(bktr->bigbuf) + offset) ); 730} 731 732int bktr_poll( dev_t dev, int events, struct proc *p) 733{ 734 int unit; 735 bktr_ptr_t bktr; 736 int revents = 0; 737 DECLARE_INTR_MASK(s); 738 739 unit = UNIT(minor(dev)); 740 741 /* Get the device data */ 742 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 743 if (bktr == NULL) { 744 /* the device is no longer valid/functioning */ 745 return (ENXIO); 746 } 747 748 DISABLE_INTR(s); 749 750 if (events & (POLLIN | POLLRDNORM)) { 751 752 switch ( FUNCTION( minor(dev) ) ) { 753 case VBI_DEV: 754 if(bktr->vbisize == 0) 755 selrecord(p, &bktr->vbi_select); 756 else 757 revents |= events & (POLLIN | POLLRDNORM); 758 break; 759 } 760 } 761 762 ENABLE_INTR(s); 763 764 return (revents); 765} 766 767#endif /* FreeBSD 4.x specific kernel interface routines */ 768 769/**********************************/ 770/* *** FreeBSD 2.2.x and 3.x *** */ 771/**********************************/ 772 773#if ((__FreeBSD__ == 2) || (__FreeBSD__ == 3)) 774 775static bktr_reg_t brooktree[ NBKTR ]; 776 777static const char* bktr_probe( pcici_t tag, pcidi_t type ); 778static void bktr_attach( pcici_t tag, int unit ); 779static void bktr_intr(void *arg) { common_bktr_intr(arg); } 780 781static u_long bktr_count; 782 783static struct pci_device bktr_device = { 784 "bktr", 785 bktr_probe, 786 bktr_attach, 787 &bktr_count 788}; 789 790DATA_SET (pcidevice_set, bktr_device); 791 792static d_open_t bktr_open; 793static d_close_t bktr_close; 794static d_read_t bktr_read; 795static d_write_t bktr_write; 796static d_ioctl_t bktr_ioctl; 797static d_mmap_t bktr_mmap; 798static d_poll_t bktr_poll; 799 800#define CDEV_MAJOR 92 801static struct cdevsw bktr_cdevsw = 802{ 803 bktr_open, bktr_close, bktr_read, bktr_write, 804 bktr_ioctl, nostop, nullreset, nodevtotty, 805 bktr_poll, bktr_mmap, NULL, "bktr", 806 NULL, -1 807}; 808 809static int bktr_devsw_installed; 810 811static void 812bktr_drvinit( void *unused ) 813{ 814 dev_t dev; 815 816 if ( ! bktr_devsw_installed ) { 817 dev = makedev(CDEV_MAJOR, 0); 818 cdevsw_add(&dev,&bktr_cdevsw, NULL); 819 bktr_devsw_installed = 1; 820 } 821} 822 823SYSINIT(bktrdev,SI_SUB_DRIVERS,SI_ORDER_MIDDLE+CDEV_MAJOR,bktr_drvinit,NULL) 824 825/* 826 * the boot time probe routine. 827 */ 828static const char* 829bktr_probe( pcici_t tag, pcidi_t type ) 830{ 831 unsigned int rev = pci_conf_read( tag, PCIR_REVID) & 0x000000ff; 832 833 switch (type) { 834 case BROOKTREE_848_PCI_ID: 835 if (rev == 0x12) return("BrookTree 848A"); 836 else return("BrookTree 848"); 837 case BROOKTREE_849_PCI_ID: 838 return("BrookTree 849A"); 839 case BROOKTREE_878_PCI_ID: 840 return("BrookTree 878"); 841 case BROOKTREE_879_PCI_ID: 842 return("BrookTree 879"); 843 }; 844 845 return ((char *)0); 846} 847 848/* 849 * the attach routine. 850 */ 851static void 852bktr_attach( pcici_t tag, int unit ) 853{ 854 bktr_ptr_t bktr; 855 u_long latency; 856 u_long fun; 857 unsigned int rev; 858 unsigned long base; 859#ifdef BROOKTREE_IRQ 860 u_long old_irq, new_irq; 861#endif 862 863 bktr = &brooktree[unit]; 864 865 if (unit >= NBKTR) { 866 printf("brooktree%d: attach: only %d units configured.\n", 867 unit, NBKTR); 868 printf("brooktree%d: attach: invalid unit number.\n", unit); 869 return; 870 } 871 872 /* build the device name for bktr_name() */ 873 snprintf(bktr->bktr_xname, sizeof(bktr->bktr_xname), "bktr%d",unit); 874 875 /* Enable Memory Mapping */ 876 fun = pci_conf_read(tag, PCI_COMMAND_STATUS_REG); 877 pci_conf_write(tag, PCI_COMMAND_STATUS_REG, fun | 2); 878 879 /* Enable Bus Mastering */ 880 fun = pci_conf_read(tag, PCI_COMMAND_STATUS_REG); 881 pci_conf_write(tag, PCI_COMMAND_STATUS_REG, fun | 4); 882 883 bktr->tag = tag; 884 885 886 /* 887 * Map control/status registers 888 */ 889 pci_map_mem( tag, PCI_MAP_REG_START, (vm_offset_t *) &base, 890 &bktr->phys_base ); 891#if (__FreeBSD_version >= 300000) 892 bktr->memt = I386_BUS_SPACE_MEM; /* XXX should use proper bus space */ 893 bktr->memh = (bus_space_handle_t)base; /* XXX functions here */ 894#endif 895 896 /* 897 * Disable the brooktree device 898 */ 899 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED); 900 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED); 901 902#ifdef BROOKTREE_IRQ /* from the configuration file */ 903 old_irq = pci_conf_read(tag, PCI_INTERRUPT_REG); 904 pci_conf_write(tag, PCI_INTERRUPT_REG, BROOKTREE_IRQ); 905 new_irq = pci_conf_read(tag, PCI_INTERRUPT_REG); 906 printf("bktr%d: attach: irq changed from %d to %d\n", 907 unit, (old_irq & 0xff), (new_irq & 0xff)); 908#endif 909 910 /* 911 * setup the interrupt handling routine 912 */ 913 pci_map_int(tag, bktr_intr, (void*) bktr, &tty_imask); 914 915 916 /* Update the Device Control Register */ 917 /* on Bt878 and Bt879 cards */ 918 fun = pci_conf_read(tag, 0x40); 919 fun = fun | 1; /* Enable writes to the sub-system vendor ID */ 920 921#if defined( BKTR_430_FX_MODE ) 922 if (bootverbose) printf("Using 430 FX chipset compatibilty mode\n"); 923 fun = fun | 2; /* Enable Intel 430 FX compatibility mode */ 924#endif 925 926#if defined( BKTR_SIS_VIA_MODE ) 927 if (bootverbose) printf("Using SiS/VIA chipset compatibilty mode\n"); 928 fun = fun | 4; /* Enable SiS/VIA compatibility mode (usefull for 929 OPTi chipset motherboards too */ 930#endif 931 pci_conf_write(tag, 0x40, fun); 932 933 934 /* XXX call bt848_i2c dependent attach() routine */ 935#if defined(BKTR_USE_FREEBSD_SMBUS) 936 if (bt848_i2c_attach(unit, bktr, &bktr->i2c_sc)) 937 printf("bktr%d: i2c_attach: can't attach\n", unit); 938#endif 939 940 941/* 942 * PCI latency timer. 32 is a good value for 4 bus mastering slots, if 943 * you have more than four, then 16 would probably be a better value. 944 */ 945#ifndef BROOKTREE_DEF_LATENCY_VALUE 946#define BROOKTREE_DEF_LATENCY_VALUE 10 947#endif 948 latency = pci_conf_read(tag, PCI_LATENCY_TIMER); 949 latency = (latency >> 8) & 0xff; 950 if ( bootverbose ) { 951 if (latency) 952 printf("brooktree%d: PCI bus latency is", unit); 953 else 954 printf("brooktree%d: PCI bus latency was 0 changing to", 955 unit); 956 } 957 if ( !latency ) { 958 latency = BROOKTREE_DEF_LATENCY_VALUE; 959 pci_conf_write(tag, PCI_LATENCY_TIMER, latency<<8); 960 } 961 if ( bootverbose ) { 962 printf(" %d.\n", (int) latency); 963 } 964 965 966 /* read the pci device id and revision id */ 967 fun = pci_conf_read(tag, PCI_ID_REG); 968 rev = pci_conf_read(tag, PCIR_REVID) & 0x000000ff; 969 970 /* call the common attach code */ 971 common_bktr_attach( bktr, unit, fun, rev ); 972 973} 974 975 976/* 977 * Special Memory Allocation 978 */ 979vm_offset_t 980get_bktr_mem( int unit, unsigned size ) 981{ 982 vm_offset_t addr = 0; 983 984 addr = vm_page_alloc_contig(size, 0x100000, 0xffffffff, 1<<24); 985 if (addr == 0) 986 addr = vm_page_alloc_contig(size, 0x100000, 0xffffffff, 987 PAGE_SIZE); 988 if (addr == 0) { 989 printf("bktr%d: Unable to allocate %d bytes of memory.\n", 990 unit, size); 991 } 992 993 return( addr ); 994} 995 996/*--------------------------------------------------------- 997** 998** BrookTree 848 character device driver routines 999** 1000**--------------------------------------------------------- 1001*/ 1002 1003 1004#define VIDEO_DEV 0x00 1005#define TUNER_DEV 0x01 1006#define VBI_DEV 0x02 1007 1008#define UNIT(x) ((x) & 0x0f) 1009#define FUNCTION(x) ((x >> 4) & 0x0f) 1010 1011 1012/* 1013 * 1014 */ 1015int 1016bktr_open( dev_t dev, int flags, int fmt, struct proc *p ) 1017{ 1018 bktr_ptr_t bktr; 1019 int unit; 1020 1021 unit = UNIT( minor(dev) ); 1022 if (unit >= NBKTR) /* unit out of range */ 1023 return( ENXIO ); 1024 1025 bktr = &(brooktree[ unit ]); 1026 1027 if (!(bktr->flags & METEOR_INITALIZED)) /* device not found */ 1028 return( ENXIO ); 1029 1030 1031 if (bt848_card != -1) { 1032 if ((bt848_card >> 8 == unit ) && 1033 ( (bt848_card & 0xff) < Bt848_MAX_CARD )) { 1034 if ( bktr->bt848_card != (bt848_card & 0xff) ) { 1035 bktr->bt848_card = (bt848_card & 0xff); 1036 probeCard(bktr, FALSE, unit); 1037 } 1038 } 1039 } 1040 1041 if (bt848_tuner != -1) { 1042 if ((bt848_tuner >> 8 == unit ) && 1043 ( (bt848_tuner & 0xff) < Bt848_MAX_TUNER )) { 1044 if ( bktr->bt848_tuner != (bt848_tuner & 0xff) ) { 1045 bktr->bt848_tuner = (bt848_tuner & 0xff); 1046 probeCard(bktr, FALSE, unit); 1047 } 1048 } 1049 } 1050 1051 if (bt848_reverse_mute != -1) { 1052 if ((bt848_reverse_mute >> 8) == unit ) { 1053 bktr->reverse_mute = bt848_reverse_mute & 0xff; 1054 } 1055 } 1056 1057 if (bt848_slow_msp_audio != -1) { 1058 if ((bt848_slow_msp_audio >> 8) == unit ) { 1059 bktr->slow_msp_audio = (bt848_slow_msp_audio & 0xff); 1060 } 1061 } 1062 1063 switch ( FUNCTION( minor(dev) ) ) { 1064 case VIDEO_DEV: 1065 return( video_open( bktr ) ); 1066 case TUNER_DEV: 1067 return( tuner_open( bktr ) ); 1068 case VBI_DEV: 1069 return( vbi_open( bktr ) ); 1070 } 1071 return( ENXIO ); 1072} 1073 1074 1075/* 1076 * 1077 */ 1078int 1079bktr_close( dev_t dev, int flags, int fmt, struct proc *p ) 1080{ 1081 bktr_ptr_t bktr; 1082 int unit; 1083 1084 unit = UNIT( minor(dev) ); 1085 if (unit >= NBKTR) /* unit out of range */ 1086 return( ENXIO ); 1087 1088 bktr = &(brooktree[ unit ]); 1089 1090 switch ( FUNCTION( minor(dev) ) ) { 1091 case VIDEO_DEV: 1092 return( video_close( bktr ) ); 1093 case TUNER_DEV: 1094 return( tuner_close( bktr ) ); 1095 case VBI_DEV: 1096 return( vbi_close( bktr ) ); 1097 } 1098 1099 return( ENXIO ); 1100} 1101 1102/* 1103 * 1104 */ 1105int 1106bktr_read( dev_t dev, struct uio *uio, int ioflag ) 1107{ 1108 bktr_ptr_t bktr; 1109 int unit; 1110 1111 unit = UNIT(minor(dev)); 1112 if (unit >= NBKTR) /* unit out of range */ 1113 return( ENXIO ); 1114 1115 bktr = &(brooktree[unit]); 1116 1117 switch ( FUNCTION( minor(dev) ) ) { 1118 case VIDEO_DEV: 1119 return( video_read( bktr, unit, dev, uio ) ); 1120 case VBI_DEV: 1121 return( vbi_read( bktr, uio, ioflag ) ); 1122 } 1123 return( ENXIO ); 1124} 1125 1126 1127/* 1128 * 1129 */ 1130int 1131bktr_write( dev_t dev, struct uio *uio, int ioflag ) 1132{ 1133 return( EINVAL ); /* XXX or ENXIO ? */ 1134} 1135 1136/* 1137 * 1138 */ 1139int 1140bktr_ioctl( dev_t dev, ioctl_cmd_t cmd, caddr_t arg, int flag, struct proc* pr ) 1141{ 1142 bktr_ptr_t bktr; 1143 int unit; 1144 1145 unit = UNIT(minor(dev)); 1146 if (unit >= NBKTR) /* unit out of range */ 1147 return( ENXIO ); 1148 1149 bktr = &(brooktree[ unit ]); 1150 1151 if (bktr->bigbuf == 0) /* no frame buffer allocated (ioctl failed) */ 1152 return( ENOMEM ); 1153 1154 switch ( FUNCTION( minor(dev) ) ) { 1155 case VIDEO_DEV: 1156 return( video_ioctl( bktr, unit, cmd, arg, pr ) ); 1157 case TUNER_DEV: 1158 return( tuner_ioctl( bktr, unit, cmd, arg, pr ) ); 1159 } 1160 1161 return( ENXIO ); 1162} 1163 1164/* 1165 * bktr_mmap. 1166 * Note: 2.2.5/2.2.6/2.2.7/3.0 users must manually 1167 * edit the line below and change "vm_offset_t" to "int" 1168 */ 1169int bktr_mmap( dev_t dev, vm_offset_t offset, int nprot ) 1170 1171{ 1172 int unit; 1173 bktr_ptr_t bktr; 1174 1175 unit = UNIT(minor(dev)); 1176 1177 if (unit >= NBKTR || FUNCTION(minor(dev)) > 0) 1178 return( -1 ); 1179 1180 bktr = &(brooktree[ unit ]); 1181 1182 if (nprot & PROT_EXEC) 1183 return( -1 ); 1184 1185 if (offset < 0) 1186 return( -1 ); 1187 1188 if (offset >= bktr->alloc_pages * PAGE_SIZE) 1189 return( -1 ); 1190 1191 return( i386_btop(vtophys(bktr->bigbuf) + offset) ); 1192} 1193 1194int bktr_poll( dev_t dev, int events, struct proc *p) 1195{ 1196 int unit; 1197 bktr_ptr_t bktr; 1198 int revents = 0; 1199 1200 unit = UNIT(minor(dev)); 1201 1202 if (unit >= NBKTR) 1203 return( -1 ); 1204 1205 bktr = &(brooktree[ unit ]); 1206 1207 disable_intr(); 1208 1209 if (events & (POLLIN | POLLRDNORM)) { 1210 1211 switch ( FUNCTION( minor(dev) ) ) { 1212 case VBI_DEV: 1213 if(bktr->vbisize == 0) 1214 selrecord(p, &bktr->vbi_select); 1215 else 1216 revents |= events & (POLLIN | POLLRDNORM); 1217 break; 1218 } 1219 } 1220 1221 enable_intr(); 1222 1223 return (revents); 1224} 1225 1226 1227#endif /* FreeBSD 2.2.x and 3.x specific kernel interface routines */ 1228 1229 1230/*****************/ 1231/* *** BSDI *** */ 1232/*****************/ 1233 1234#if defined(__bsdi__) 1235#endif /* __bsdi__ BSDI specific kernel interface routines */ 1236 1237 1238/*****************************/ 1239/* *** OpenBSD / NetBSD *** */ 1240/*****************************/ 1241#if defined(__NetBSD__) || defined(__OpenBSD__) 1242 1243#define IPL_VIDEO IPL_BIO /* XXX */ 1244 1245static int bktr_intr(void *arg) { return common_bktr_intr(arg); } 1246 1247#define bktr_open bktropen 1248#define bktr_close bktrclose 1249#define bktr_read bktrread 1250#define bktr_write bktrwrite 1251#define bktr_ioctl bktrioctl 1252#define bktr_mmap bktrmmap 1253 1254vm_offset_t vm_page_alloc_contig(vm_offset_t, vm_offset_t, 1255 vm_offset_t, vm_offset_t); 1256 1257#if defined(__OpenBSD__) 1258static int bktr_probe __P((struct device *, void *, void *)); 1259#else 1260static int bktr_probe __P((struct device *, struct cfdata *, void *)); 1261#endif 1262static void bktr_attach __P((struct device *, struct device *, void *)); 1263 1264struct cfattach bktr_ca = { 1265 sizeof(struct bktr_softc), bktr_probe, bktr_attach 1266}; 1267 1268#if defined(__NetBSD__) 1269extern struct cfdriver bktr_cd; 1270#else 1271struct cfdriver bktr_cd = { 1272 NULL, "bktr", DV_DULL 1273}; 1274#endif 1275 1276int 1277bktr_probe(parent, match, aux) 1278 struct device *parent; 1279#if defined(__OpenBSD__) 1280 void *match; 1281#else 1282 struct cfdata *match; 1283#endif 1284 void *aux; 1285{ 1286 struct pci_attach_args *pa = aux; 1287 1288 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_BROOKTREE && 1289 (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT848 || 1290 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT849 || 1291 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT878 || 1292 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT879)) 1293 return 1; 1294 1295 return 0; 1296} 1297 1298 1299/* 1300 * the attach routine. 1301 */ 1302static void 1303bktr_attach(struct device *parent, struct device *self, void *aux) 1304{ 1305 bktr_ptr_t bktr; 1306 u_long latency; 1307 u_long fun; 1308 unsigned int rev; 1309 1310#if defined(__OpenBSD__) 1311 struct pci_attach_args *pa = aux; 1312 pci_chipset_tag_t pc = pa->pa_pc; 1313 1314 pci_intr_handle_t ih; 1315 const char *intrstr; 1316 int retval; 1317 int unit; 1318 1319 bktr = (bktr_ptr_t)self; 1320 unit = bktr->bktr_dev.dv_unit; 1321 1322 bktr->pc = pa->pa_pc; 1323 bktr->tag = pa->pa_tag; 1324 bktr->dmat = pa->pa_dmat; 1325 1326 /* 1327 * map memory 1328 */ 1329 bktr->memt = pa->pa_memt; 1330 retval = pci_mem_find(pc, pa->pa_tag, PCI_MAPREG_START, 1331 &bktr->phys_base, &bktr->obmemsz, NULL); 1332 if (!retval) 1333 retval = bus_space_map(pa->pa_memt, bktr->phys_base, 1334 bktr->obmemsz, 0, &bktr->memh); 1335 if (retval) { 1336 printf(": couldn't map memory\n"); 1337 return; 1338 } 1339 1340 1341 /* 1342 * map interrupt 1343 */ 1344 if (pci_intr_map(pa->pa_pc, pa->pa_intrtag, pa->pa_intrpin, 1345 pa->pa_intrline, &ih)) { 1346 printf(": couldn't map interrupt\n"); 1347 return; 1348 } 1349 intrstr = pci_intr_string(pa->pa_pc, ih); 1350 1351 bktr->ih = pci_intr_establish(pa->pa_pc, ih, IPL_VIDEO, 1352 bktr_intr, bktr, bktr->bktr_dev.dv_xname); 1353 if (bktr->ih == NULL) { 1354 printf(": couldn't establish interrupt"); 1355 if (intrstr != NULL) 1356 printf(" at %s", intrstr); 1357 printf("\n"); 1358 return; 1359 } 1360 1361 if (intrstr != NULL) 1362 printf(": %s\n", intrstr); 1363#endif /* __OpenBSD__ */ 1364 1365#if defined(__NetBSD__) 1366 struct pci_attach_args *pa = aux; 1367 pci_intr_handle_t ih; 1368 const char *intrstr; 1369 int retval; 1370 int unit; 1371 1372 bktr = (bktr_ptr_t)self; 1373 unit = bktr->bktr_dev.dv_unit; 1374 bktr->dmat = pa->pa_dmat; 1375 1376 printf("\n"); 1377 1378 /* 1379 * map memory 1380 */ 1381 retval = pci_mapreg_map(pa, PCI_MAPREG_START, 1382 PCI_MAPREG_TYPE_MEM 1383 | PCI_MAPREG_MEM_TYPE_32BIT, 0, 1384 &bktr->memt, &bktr->memh, NULL, 1385 &bktr->obmemsz); 1386 DPR(("pci_mapreg_map: memt %x, memh %x, size %x\n", 1387 bktr->memt, (u_int)bktr->memh, (u_int)bktr->obmemsz)); 1388 if (retval) { 1389 printf("%s: couldn't map memory\n", bktr_name(bktr)); 1390 return; 1391 } 1392 1393 /* 1394 * Disable the brooktree device 1395 */ 1396 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED); 1397 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED); 1398 1399 /* 1400 * map interrupt 1401 */ 1402 if (pci_intr_map(pa->pa_pc, pa->pa_intrtag, pa->pa_intrpin, 1403 pa->pa_intrline, &ih)) { 1404 printf("%s: couldn't map interrupt\n", 1405 bktr_name(bktr)); 1406 return; 1407 } 1408 intrstr = pci_intr_string(pa->pa_pc, ih); 1409 bktr->ih = pci_intr_establish(pa->pa_pc, ih, IPL_VIDEO, 1410 bktr_intr, bktr); 1411 if (bktr->ih == NULL) { 1412 printf("%s: couldn't establish interrupt", 1413 bktr_name(bktr)); 1414 if (intrstr != NULL) 1415 printf(" at %s", intrstr); 1416 printf("\n"); 1417 return; 1418 } 1419 if (intrstr != NULL) 1420 printf("%s: interrupting at %s\n", bktr_name(bktr), 1421 intrstr); 1422#endif /* __NetBSD__ */ 1423 1424/* 1425 * PCI latency timer. 32 is a good value for 4 bus mastering slots, if 1426 * you have more than four, then 16 would probably be a better value. 1427 */ 1428#ifndef BROOKTREE_DEF_LATENCY_VALUE 1429#define BROOKTREE_DEF_LATENCY_VALUE 10 1430#endif 1431 latency = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_LATENCY_TIMER); 1432 latency = (latency >> 8) & 0xff; 1433 1434 if (!latency) { 1435 if (bootverbose) { 1436 printf("%s: PCI bus latency was 0 changing to %d", 1437 bktr_name(bktr), BROOKTREE_DEF_LATENCY_VALUE); 1438 } 1439 latency = BROOKTREE_DEF_LATENCY_VALUE; 1440 pci_conf_write(pa->pa_pc, pa->pa_tag, 1441 PCI_LATENCY_TIMER, latency<<8); 1442 } 1443 1444 1445 /* Enabled Bus Master 1446 XXX: check if all old DMA is stopped first (e.g. after warm 1447 boot) */ 1448 fun = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); 1449 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, 1450 fun | PCI_COMMAND_MASTER_ENABLE); 1451 1452 /* read the pci id and determine the card type */ 1453 fun = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_ID_REG); 1454 rev = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_CLASS_REG) & 0x000000ff; 1455 1456 common_bktr_attach(bktr, unit, fun, rev); 1457} 1458 1459 1460/* 1461 * Special Memory Allocation 1462 */ 1463vm_offset_t 1464get_bktr_mem(bktr, dmapp, size) 1465 bktr_ptr_t bktr; 1466 bus_dmamap_t *dmapp; 1467 unsigned int size; 1468{ 1469 bus_dma_tag_t dmat = bktr->dmat; 1470 bus_dma_segment_t seg; 1471 bus_size_t align; 1472 int rseg; 1473 caddr_t kva; 1474 1475 /* 1476 * Allocate a DMA area 1477 */ 1478 align = 1 << 24; 1479 if (bus_dmamem_alloc(dmat, size, align, 0, &seg, 1, 1480 &rseg, BUS_DMA_NOWAIT)) { 1481 align = PAGE_SIZE; 1482 if (bus_dmamem_alloc(dmat, size, align, 0, &seg, 1, 1483 &rseg, BUS_DMA_NOWAIT)) { 1484 printf("%s: Unable to dmamem_alloc of %d bytes\n", 1485 bktr_name(bktr), size); 1486 return 0; 1487 } 1488 } 1489 if (bus_dmamem_map(dmat, &seg, rseg, size, 1490 &kva, BUS_DMA_NOWAIT|BUS_DMA_COHERENT)) { 1491 printf("%s: Unable to dmamem_map of %d bytes\n", 1492 bktr_name(bktr), size); 1493 bus_dmamem_free(dmat, &seg, rseg); 1494 return 0; 1495 } 1496#ifdef __OpenBSD__ 1497 bktr->dm_mapsize = size; 1498#endif 1499 /* 1500 * Create and locd the DMA map for the DMA area 1501 */ 1502 if (bus_dmamap_create(dmat, size, 1, size, 0, BUS_DMA_NOWAIT, dmapp)) { 1503 printf("%s: Unable to dmamap_create of %d bytes\n", 1504 bktr_name(bktr), size); 1505 bus_dmamem_unmap(dmat, kva, size); 1506 bus_dmamem_free(dmat, &seg, rseg); 1507 return 0; 1508 } 1509 if (bus_dmamap_load(dmat, *dmapp, kva, size, NULL, BUS_DMA_NOWAIT)) { 1510 printf("%s: Unable to dmamap_load of %d bytes\n", 1511 bktr_name(bktr), size); 1512 bus_dmamem_unmap(dmat, kva, size); 1513 bus_dmamem_free(dmat, &seg, rseg); 1514 bus_dmamap_destroy(dmat, *dmapp); 1515 return 0; 1516 } 1517 return (vm_offset_t)kva; 1518} 1519 1520void 1521free_bktr_mem(bktr, dmap, kva) 1522 bktr_ptr_t bktr; 1523 bus_dmamap_t dmap; 1524 vm_offset_t kva; 1525{ 1526 bus_dma_tag_t dmat = bktr->dmat; 1527 1528#ifdef __NetBSD__ 1529 bus_dmamem_unmap(dmat, (caddr_t)kva, dmap->dm_mapsize); 1530#else 1531 bus_dmamem_unmap(dmat, (caddr_t)kva, bktr->dm_mapsize); 1532#endif 1533 bus_dmamem_free(dmat, dmap->dm_segs, 1); 1534 bus_dmamap_destroy(dmat, dmap); 1535} 1536 1537 1538/*--------------------------------------------------------- 1539** 1540** BrookTree 848 character device driver routines 1541** 1542**--------------------------------------------------------- 1543*/ 1544 1545 1546#define VIDEO_DEV 0x00 1547#define TUNER_DEV 0x01 1548#define VBI_DEV 0x02 1549 1550#define UNIT(x) (minor((x) & 0x0f)) 1551#define FUNCTION(x) (minor((x >> 4) & 0x0f)) 1552 1553/* 1554 * 1555 */ 1556int 1557bktr_open(dev_t dev, int flags, int fmt, struct proc *p) 1558{ 1559 bktr_ptr_t bktr; 1560 int unit; 1561 1562 unit = UNIT(dev); 1563 1564 /* unit out of range */ 1565 if ((unit > bktr_cd.cd_ndevs) || (bktr_cd.cd_devs[unit] == NULL)) 1566 return(ENXIO); 1567 1568 bktr = bktr_cd.cd_devs[unit]; 1569 1570 if (!(bktr->flags & METEOR_INITALIZED)) /* device not found */ 1571 return(ENXIO); 1572 1573 switch (FUNCTION(dev)) { 1574 case VIDEO_DEV: 1575 return(video_open(bktr)); 1576 case TUNER_DEV: 1577 return(tuner_open(bktr)); 1578 case VBI_DEV: 1579 return(vbi_open(bktr)); 1580 } 1581 1582 return(ENXIO); 1583} 1584 1585 1586/* 1587 * 1588 */ 1589int 1590bktr_close(dev_t dev, int flags, int fmt, struct proc *p) 1591{ 1592 bktr_ptr_t bktr; 1593 int unit; 1594 1595 unit = UNIT(dev); 1596 1597 bktr = bktr_cd.cd_devs[unit]; 1598 1599 switch (FUNCTION(dev)) { 1600 case VIDEO_DEV: 1601 return(video_close(bktr)); 1602 case TUNER_DEV: 1603 return(tuner_close(bktr)); 1604 case VBI_DEV: 1605 return(vbi_close(bktr)); 1606 } 1607 1608 return(ENXIO); 1609} 1610 1611/* 1612 * 1613 */ 1614int 1615bktr_read(dev_t dev, struct uio *uio, int ioflag) 1616{ 1617 bktr_ptr_t bktr; 1618 int unit; 1619 1620 unit = UNIT(dev); 1621 1622 bktr = bktr_cd.cd_devs[unit]; 1623 1624 switch (FUNCTION(dev)) { 1625 case VIDEO_DEV: 1626 return(video_read(bktr, unit, dev, uio)); 1627 case VBI_DEV: 1628 return(vbi_read(bktr, uio, ioflag)); 1629 } 1630 1631 return(ENXIO); 1632} 1633 1634 1635/* 1636 * 1637 */ 1638int 1639bktr_write(dev_t dev, struct uio *uio, int ioflag) 1640{ 1641 /* operation not supported */ 1642 return(EOPNOTSUPP); 1643} 1644 1645/* 1646 * 1647 */ 1648int 1649bktr_ioctl(dev_t dev, ioctl_cmd_t cmd, caddr_t arg, int flag, struct proc* pr) 1650{ 1651 bktr_ptr_t bktr; 1652 int unit; 1653 1654 unit = UNIT(dev); 1655 1656 bktr = bktr_cd.cd_devs[unit]; 1657 1658 if (bktr->bigbuf == 0) /* no frame buffer allocated (ioctl failed) */ 1659 return(ENOMEM); 1660 1661 switch (FUNCTION(dev)) { 1662 case VIDEO_DEV: 1663 return(video_ioctl(bktr, unit, cmd, arg, pr)); 1664 case TUNER_DEV: 1665 return(tuner_ioctl(bktr, unit, cmd, arg, pr)); 1666 } 1667 1668 return(ENXIO); 1669} 1670 1671/* 1672 * 1673 */ 1674paddr_t 1675bktr_mmap(dev_t dev, off_t offset, int nprot) 1676{ 1677 int unit; 1678 bktr_ptr_t bktr; 1679 1680 unit = UNIT(dev); 1681 1682 if (FUNCTION(dev) > 0) /* only allow mmap on /dev/bktr[n] */ 1683 return(-1); 1684 1685 bktr = bktr_cd.cd_devs[unit]; 1686 1687 if ((vaddr_t)offset < 0) 1688 return(-1); 1689 1690 if ((vaddr_t)offset >= bktr->alloc_pages * PAGE_SIZE) 1691 return(-1); 1692 1693#ifdef __NetBSD__ 1694 return (bus_dmamem_mmap(bktr->dmat, bktr->dm_mem->dm_segs, 1, 1695 (vaddr_t)offset, nprot, BUS_DMA_WAITOK)); 1696#else 1697 return(i386_btop(vtophys(bktr->bigbuf) + offset)); 1698#endif 1699} 1700 1701#endif /* __NetBSD__ || __OpenBSD__ */ 1702