bktr_os.c revision 1.1
1 /* $NetBSD: bktr_os.c,v 1.1 2000/05/07 00:16:18 wiz Exp $ */ 2 3 /* FreeBSD: src/sys/dev/bktr/bktr_os.c,v 1.7 2000/04/16 07:50:09 roger Exp */ 4 5 /* 6 * This is part of the Driver for Video Capture Cards (Frame grabbers) 7 * and TV Tuner cards using the Brooktree Bt848, Bt848A, Bt849A, Bt878, Bt879 8 * chipset. 9 * Copyright Roger Hardiman and Amancio Hasty. 10 * 11 * bktr_os : This has all the Operating System dependant code, 12 * probe/attach and open/close/ioctl/read/mmap 13 * memory allocation 14 * PCI bus interfacing 15 * 16 * 17 */ 18 19 /* 20 * 1. Redistributions of source code must retain the 21 * Copyright (c) 1997 Amancio Hasty, 1999 Roger Hardiman 22 * All rights reserved. 23 * 24 * Redistribution and use in source and binary forms, with or without 25 * modification, are permitted provided that the following conditions 26 * are met: 27 * 1. Redistributions of source code must retain the above copyright 28 * notice, this list of conditions and the following disclaimer. 29 * 2. Redistributions in binary form must reproduce the above copyright 30 * notice, this list of conditions and the following disclaimer in the 31 * documentation and/or other materials provided with the distribution. 32 * 3. All advertising materials mentioning features or use of this software 33 * must display the following acknowledgement: 34 * This product includes software developed by Amancio Hasty and 35 * Roger Hardiman 36 * 4. The name of the author may not be used to endorse or promote products 37 * derived from this software without specific prior written permission. 38 * 39 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 40 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 41 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 42 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 43 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 44 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 45 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 46 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 47 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 48 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 49 * POSSIBILITY OF SUCH DAMAGE. 50 */ 51 52 53 #ifdef __FreeBSD__ 54 #include "bktr.h" 55 #include "opt_devfs.h" 56 #endif /* __FreeBSD__ */ 57 58 #include "opt_bktr.h" /* include any kernel config options */ 59 60 #define FIFO_RISC_DISABLED 0 61 #define ALL_INTS_DISABLED 0 62 63 #include <sys/param.h> 64 #include <sys/systm.h> 65 #include <sys/conf.h> 66 #include <sys/uio.h> 67 #include <sys/kernel.h> 68 #include <sys/signalvar.h> 69 #include <sys/mman.h> 70 #include <sys/poll.h> 71 #include <sys/select.h> 72 #include <sys/vnode.h> 73 74 #include <vm/vm.h> 75 #include <vm/vm_kern.h> 76 #include <vm/pmap.h> 77 #include <vm/vm_extern.h> 78 79 /*******************/ 80 /* *** FreeBSD *** */ 81 /*******************/ 82 #ifdef __FreeBSD__ 83 84 #if (__FreeBSD_version < 400000) 85 #ifdef DEVFS 86 #include <sys/devfsext.h> 87 #endif /* DEVFS */ 88 #endif 89 90 #if (__FreeBSD_version >=400000) || (NSMBUS > 0) 91 #include <sys/bus.h> /* used by smbus and newbus */ 92 #endif 93 94 #if (__FreeBSD_version >=300000) 95 #include <machine/bus_memio.h> /* used by bus space */ 96 #include <machine/bus.h> /* used by bus space and newbus */ 97 #include <sys/bus.h> 98 #endif 99 100 #if (__FreeBSD_version >=400000) 101 #include <sys/rman.h> /* used by newbus */ 102 #include <machine/resource.h> /* used by newbus */ 103 #endif 104 105 106 #include <machine/clock.h> /* for DELAY */ 107 #include <pci/pcivar.h> 108 #include <pci/pcireg.h> 109 #endif 110 111 #ifdef __NetBSD__ 112 #include <dev/ic/ioctl_meteor.h> /* NetBSD location for .h files */ 113 #include <dev/ic/ioctl_bt848.h> 114 #else /* Traditional location for .h files */ 115 #include <machine/ioctl_meteor.h> 116 #include <machine/ioctl_bt848.h> /* extensions to ioctl_meteor.h */ 117 #endif 118 #include <dev/bktr/bktr_reg.h> 119 #include <dev/bktr/bktr_tuner.h> 120 #include <dev/bktr/bktr_card.h> 121 #include <dev/bktr/bktr_audio.h> 122 #include <dev/bktr/bktr_core.h> 123 #include <dev/bktr/bktr_os.h> 124 125 #if defined(__FreeBSD__) 126 #if (NSMBUS > 0) 127 #include <dev/bktr/bktr_i2c.h> 128 #endif 129 130 #include <sys/sysctl.h> 131 int bt848_card = -1; 132 int bt848_tuner = -1; 133 int bt848_reverse_mute = -1; 134 int bt848_format = -1; 135 int bt848_slow_msp_audio = -1; 136 137 SYSCTL_NODE(_hw, OID_AUTO, bt848, CTLFLAG_RW, 0, "Bt848 Driver mgmt"); 138 SYSCTL_INT(_hw_bt848, OID_AUTO, card, CTLFLAG_RW, &bt848_card, -1, ""); 139 SYSCTL_INT(_hw_bt848, OID_AUTO, tuner, CTLFLAG_RW, &bt848_tuner, -1, ""); 140 SYSCTL_INT(_hw_bt848, OID_AUTO, reverse_mute, CTLFLAG_RW, &bt848_reverse_mute, -1, ""); 141 SYSCTL_INT(_hw_bt848, OID_AUTO, format, CTLFLAG_RW, &bt848_format, -1, ""); 142 SYSCTL_INT(_hw_bt848, OID_AUTO, slow_msp_audio, CTLFLAG_RW, &bt848_slow_msp_audio, -1, ""); 143 #endif 144 145 #if (__FreeBSD__ == 2) 146 #define PCIR_REVID PCI_CLASS_REG 147 #endif 148 149 150 /****************/ 151 /* *** BSDI *** */ 152 /****************/ 153 #ifdef __bsdi__ 154 #endif /* __bsdi__ */ 155 156 157 /**************************/ 158 /* *** OpenBSD/NetBSD *** */ 159 /**************************/ 160 #if defined(__NetBSD__) || defined(__OpenBSD__) 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 static int bootverbose = 1; 167 168 169 #define BKTR_DEBUG 170 #ifdef BKTR_DEBUG 171 int bktr_debug = 0; 172 #define DPR(x) (bktr_debug ? printf x : 0) 173 #else 174 #define DPR(x) 175 #endif 176 #endif /* __NetBSD__ || __OpenBSD__ */ 177 178 179 180 /****************************/ 181 /* *** FreeBSD 4.x code *** */ 182 /****************************/ 183 #if (__FreeBSD_version >= 400000) 184 185 static int bktr_probe( device_t dev ); 186 static int bktr_attach( device_t dev ); 187 static int bktr_detach( device_t dev ); 188 static int bktr_shutdown( device_t dev ); 189 static void bktr_intr(void *arg) { common_bktr_intr(arg); } 190 191 static device_method_t bktr_methods[] = { 192 /* Device interface */ 193 DEVMETHOD(device_probe, bktr_probe), 194 DEVMETHOD(device_attach, bktr_attach), 195 DEVMETHOD(device_detach, bktr_detach), 196 DEVMETHOD(device_shutdown, bktr_shutdown), 197 198 { 0, 0 } 199 }; 200 201 static driver_t bktr_driver = { 202 "bktr", 203 bktr_methods, 204 sizeof(struct bktr_softc), 205 }; 206 207 static devclass_t bktr_devclass; 208 209 static d_open_t bktr_open; 210 static d_close_t bktr_close; 211 static d_read_t bktr_read; 212 static d_write_t bktr_write; 213 static d_ioctl_t bktr_ioctl; 214 static d_mmap_t bktr_mmap; 215 static d_poll_t bktr_poll; 216 217 #define CDEV_MAJOR 92 218 static struct cdevsw bktr_cdevsw = { 219 /* open */ bktr_open, 220 /* close */ bktr_close, 221 /* read */ bktr_read, 222 /* write */ bktr_write, 223 /* ioctl */ bktr_ioctl, 224 /* poll */ bktr_poll, 225 /* mmap */ bktr_mmap, 226 /* strategy */ nostrategy, 227 /* name */ "bktr", 228 /* maj */ CDEV_MAJOR, 229 /* dump */ nodump, 230 /* psize */ nopsize, 231 /* flags */ 0, 232 /* bmaj */ -1 233 }; 234 235 DRIVER_MODULE(bktr, pci, bktr_driver, bktr_devclass, 0, 0); 236 237 238 /* 239 * the boot time probe routine. 240 */ 241 static int 242 bktr_probe( device_t dev ) 243 { 244 unsigned int type = pci_get_devid(dev); 245 unsigned int rev = pci_get_revid(dev); 246 247 switch (type) { 248 case BROOKTREE_848_PCI_ID: 249 if (rev == 0x12) device_set_desc(dev, "BrookTree 848A"); 250 else device_set_desc(dev, "BrookTree 848"); 251 return 0; 252 case BROOKTREE_849_PCI_ID: 253 device_set_desc(dev, "BrookTree 849A"); 254 return 0; 255 case BROOKTREE_878_PCI_ID: 256 device_set_desc(dev, "BrookTree 878"); 257 return 0; 258 case BROOKTREE_879_PCI_ID: 259 device_set_desc(dev, "BrookTree 879"); 260 return 0; 261 }; 262 263 return ENXIO; 264 } 265 266 267 /* 268 * the attach routine. 269 */ 270 static int 271 bktr_attach( device_t dev ) 272 { 273 u_long latency; 274 u_long fun; 275 u_long val; 276 unsigned int rev; 277 unsigned int unit; 278 int error = 0; 279 int rid; 280 #ifdef BROOKTREE_IRQ 281 u_long old_irq, new_irq; 282 #endif 283 284 struct bktr_softc *bktr = device_get_softc(dev); 285 286 unit = device_get_unit(dev); 287 288 /* 289 * Enable bus mastering and Memory Mapped device 290 */ 291 val = pci_read_config(dev, PCIR_COMMAND, 4); 292 val |= (PCIM_CMD_MEMEN|PCIM_CMD_BUSMASTEREN); 293 pci_write_config(dev, PCIR_COMMAND, val, 4); 294 295 /* 296 * Map control/status registers. 297 */ 298 rid = PCI_MAP_REG_START; 299 bktr->res_mem = bus_alloc_resource(dev, SYS_RES_MEMORY, &rid, 300 0, ~0, 1, RF_ACTIVE); 301 302 if (!bktr->res_mem) { 303 device_printf(dev, "could not map memory\n"); 304 error = ENXIO; 305 goto fail; 306 } 307 bktr->memt = rman_get_bustag(bktr->res_mem); 308 bktr->memh = rman_get_bushandle(bktr->res_mem); 309 310 311 /* 312 * Disable the brooktree device 313 */ 314 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED); 315 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED); 316 317 318 #ifdef BROOKTREE_IRQ /* from the configuration file */ 319 old_irq = pci_conf_read(tag, PCI_INTERRUPT_REG); 320 pci_conf_write(tag, PCI_INTERRUPT_REG, BROOKTREE_IRQ); 321 new_irq = pci_conf_read(tag, PCI_INTERRUPT_REG); 322 printf("bktr%d: attach: irq changed from %d to %d\n", 323 unit, (old_irq & 0xff), (new_irq & 0xff)); 324 #endif 325 326 /* 327 * Allocate our interrupt. 328 */ 329 rid = 0; 330 bktr->res_irq = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 0, ~0, 1, 331 RF_SHAREABLE | RF_ACTIVE); 332 if (bktr->res_irq == NULL) { 333 device_printf(dev, "could not map interrupt\n"); 334 error = ENXIO; 335 goto fail; 336 } 337 338 error = bus_setup_intr(dev, bktr->res_irq, INTR_TYPE_TTY, 339 bktr_intr, bktr, &bktr->res_ih); 340 if (error) { 341 device_printf(dev, "could not setup irq\n"); 342 goto fail; 343 344 } 345 346 347 /* Update the Device Control Register */ 348 /* on Bt878 and Bt879 cards */ 349 fun = pci_read_config( dev, 0x40, 2); 350 fun = fun | 1; /* Enable writes to the sub-system vendor ID */ 351 352 #if defined( BKTR_430_FX_MODE ) 353 if (bootverbose) printf("Using 430 FX chipset compatibilty mode\n"); 354 fun = fun | 2; /* Enable Intel 430 FX compatibility mode */ 355 #endif 356 357 #if defined( BKTR_SIS_VIA_MODE ) 358 if (bootverbose) printf("Using SiS/VIA chipset compatibilty mode\n"); 359 fun = fun | 4; /* Enable SiS/VIA compatibility mode (usefull for 360 OPTi chipset motherboards too */ 361 #endif 362 pci_write_config(dev, 0x40, fun, 2); 363 364 365 /* XXX call bt848_i2c dependent attach() routine */ 366 #if (NSMBUS > 0) 367 if (bt848_i2c_attach(unit, bktr, &bktr->i2c_sc)) 368 printf("bktr%d: i2c_attach: can't attach\n", unit); 369 #endif 370 371 372 /* 373 * PCI latency timer. 32 is a good value for 4 bus mastering slots, if 374 * you have more than four, then 16 would probably be a better value. 375 */ 376 #ifndef BROOKTREE_DEF_LATENCY_VALUE 377 #define BROOKTREE_DEF_LATENCY_VALUE 10 378 #endif 379 latency = pci_read_config(dev, PCI_LATENCY_TIMER, 4); 380 latency = (latency >> 8) & 0xff; 381 if ( bootverbose ) { 382 if (latency) 383 printf("brooktree%d: PCI bus latency is", unit); 384 else 385 printf("brooktree%d: PCI bus latency was 0 changing to", 386 unit); 387 } 388 if ( !latency ) { 389 latency = BROOKTREE_DEF_LATENCY_VALUE; 390 pci_write_config(dev, PCI_LATENCY_TIMER, latency<<8, 4); 391 } 392 if ( bootverbose ) { 393 printf(" %d.\n", (int) latency); 394 } 395 396 /* read the pci device id and revision id */ 397 fun = pci_get_devid(dev); 398 rev = pci_get_revid(dev); 399 400 /* call the common attach code */ 401 common_bktr_attach( bktr, unit, fun, rev ); 402 403 make_dev(&bktr_cdevsw, unit, 0, 0, 0444, "bktr%d", unit); 404 make_dev(&bktr_cdevsw, unit+16, 0, 0, 0444, "tuner%d", unit); 405 make_dev(&bktr_cdevsw, unit+32, 0, 0, 0444, "vbi%d", unit); 406 407 return 0; 408 409 fail: 410 return error; 411 412 } 413 414 /* 415 * the detach routine. 416 */ 417 static int 418 bktr_detach( device_t dev ) 419 { 420 struct bktr_softc *bktr = device_get_softc(dev); 421 422 /* Disable the brooktree device */ 423 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED); 424 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED); 425 426 /* FIXME - Free memory for RISC programs, grab buffer, vbi buffers */ 427 428 /* 429 * Deallocate resources. 430 */ 431 bus_teardown_intr(dev, bktr->res_irq, bktr->res_ih); 432 bus_release_resource(dev, SYS_RES_IRQ, 0, bktr->res_irq); 433 bus_release_resource(dev, SYS_RES_MEMORY, PCI_MAP_REG_START, bktr->res_mem); 434 435 return 0; 436 } 437 438 /* 439 * the shutdown routine. 440 */ 441 static int 442 bktr_shutdown( device_t dev ) 443 { 444 struct bktr_softc *bktr = device_get_softc(dev); 445 446 /* Disable the brooktree device */ 447 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED); 448 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED); 449 450 return 0; 451 } 452 453 454 /* 455 * Special Memory Allocation 456 */ 457 vm_offset_t 458 get_bktr_mem( int unit, unsigned size ) 459 { 460 vm_offset_t addr = 0; 461 462 addr = vm_page_alloc_contig(size, 0, 0xffffffff, 1<<24); 463 if (addr == 0) 464 addr = vm_page_alloc_contig(size, 0, 0xffffffff, PAGE_SIZE); 465 if (addr == 0) { 466 printf("bktr%d: Unable to allocate %d bytes of memory.\n", 467 unit, size); 468 } 469 470 return( addr ); 471 } 472 473 474 /*--------------------------------------------------------- 475 ** 476 ** BrookTree 848 character device driver routines 477 ** 478 **--------------------------------------------------------- 479 */ 480 481 #define VIDEO_DEV 0x00 482 #define TUNER_DEV 0x01 483 #define VBI_DEV 0x02 484 485 #define UNIT(x) ((x) & 0x0f) 486 #define FUNCTION(x) (x >> 4) 487 488 /* 489 * 490 */ 491 int 492 bktr_open( dev_t dev, int flags, int fmt, struct proc *p ) 493 { 494 bktr_ptr_t bktr; 495 int unit; 496 int result; 497 498 unit = UNIT( minor(dev) ); 499 500 /* Get the device data */ 501 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 502 if (bktr == NULL) { 503 /* the device is no longer valid/functioning */ 504 return (ENXIO); 505 } 506 507 if (!(bktr->flags & METEOR_INITALIZED)) /* device not found */ 508 return( ENXIO ); 509 510 /* Record that the device is now busy */ 511 device_busy(devclass_get_device(bktr_devclass, unit)); 512 513 514 if (bt848_card != -1) { 515 if ((bt848_card >> 8 == unit ) && 516 ( (bt848_card & 0xff) < Bt848_MAX_CARD )) { 517 if ( bktr->bt848_card != (bt848_card & 0xff) ) { 518 bktr->bt848_card = (bt848_card & 0xff); 519 probeCard(bktr, FALSE, unit); 520 } 521 } 522 } 523 524 if (bt848_tuner != -1) { 525 if ((bt848_tuner >> 8 == unit ) && 526 ( (bt848_tuner & 0xff) < Bt848_MAX_TUNER )) { 527 if ( bktr->bt848_tuner != (bt848_tuner & 0xff) ) { 528 bktr->bt848_tuner = (bt848_tuner & 0xff); 529 probeCard(bktr, FALSE, unit); 530 } 531 } 532 } 533 534 if (bt848_reverse_mute != -1) { 535 if ((bt848_reverse_mute >> 8) == unit ) { 536 bktr->reverse_mute = bt848_reverse_mute & 0xff; 537 } 538 } 539 540 if (bt848_slow_msp_audio != -1) { 541 if ((bt848_slow_msp_audio >> 8) == unit ) { 542 bktr->slow_msp_audio = (bt848_slow_msp_audio & 0xff); 543 } 544 } 545 546 switch ( FUNCTION( minor(dev) ) ) { 547 case VIDEO_DEV: 548 result = video_open( bktr ); 549 break; 550 case TUNER_DEV: 551 result = tuner_open( bktr ); 552 break; 553 case VBI_DEV: 554 result = vbi_open( bktr ); 555 break; 556 default: 557 result = ENXIO; 558 break; 559 } 560 561 /* If there was an error opening the device, undo the busy status */ 562 if (result != 0) 563 device_unbusy(devclass_get_device(bktr_devclass, unit)); 564 return( result ); 565 } 566 567 568 /* 569 * 570 */ 571 int 572 bktr_close( dev_t dev, int flags, int fmt, struct proc *p ) 573 { 574 bktr_ptr_t bktr; 575 int unit; 576 int result; 577 578 unit = UNIT( minor(dev) ); 579 580 /* Get the device data */ 581 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 582 if (bktr == NULL) { 583 /* the device is no longer valid/functioning */ 584 return (ENXIO); 585 } 586 587 switch ( FUNCTION( minor(dev) ) ) { 588 case VIDEO_DEV: 589 result = video_close( bktr ); 590 break; 591 case TUNER_DEV: 592 result = tuner_close( bktr ); 593 break; 594 case VBI_DEV: 595 result = vbi_close( bktr ); 596 break; 597 default: 598 return (ENXIO); 599 break; 600 } 601 602 device_unbusy(devclass_get_device(bktr_devclass, unit)); 603 return( result ); 604 } 605 606 607 /* 608 * 609 */ 610 int 611 bktr_read( dev_t dev, struct uio *uio, int ioflag ) 612 { 613 bktr_ptr_t bktr; 614 int unit; 615 616 unit = UNIT(minor(dev)); 617 618 /* Get the device data */ 619 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 620 if (bktr == NULL) { 621 /* the device is no longer valid/functioning */ 622 return (ENXIO); 623 } 624 625 switch ( FUNCTION( minor(dev) ) ) { 626 case VIDEO_DEV: 627 return( video_read( bktr, unit, dev, uio ) ); 628 case VBI_DEV: 629 return( vbi_read( bktr, uio, ioflag ) ); 630 } 631 return( ENXIO ); 632 } 633 634 635 /* 636 * 637 */ 638 int 639 bktr_write( dev_t dev, struct uio *uio, int ioflag ) 640 { 641 return( EINVAL ); /* XXX or ENXIO ? */ 642 } 643 644 645 /* 646 * 647 */ 648 int 649 bktr_ioctl( dev_t dev, ioctl_cmd_t cmd, caddr_t arg, int flag, struct proc* pr ) 650 { 651 bktr_ptr_t bktr; 652 int unit; 653 654 unit = UNIT(minor(dev)); 655 656 /* Get the device data */ 657 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 658 if (bktr == NULL) { 659 /* the device is no longer valid/functioning */ 660 return (ENXIO); 661 } 662 663 if (bktr->bigbuf == 0) /* no frame buffer allocated (ioctl failed) */ 664 return( ENOMEM ); 665 666 switch ( FUNCTION( minor(dev) ) ) { 667 case VIDEO_DEV: 668 return( video_ioctl( bktr, unit, cmd, arg, pr ) ); 669 case TUNER_DEV: 670 return( tuner_ioctl( bktr, unit, cmd, arg, pr ) ); 671 } 672 673 return( ENXIO ); 674 } 675 676 677 /* 678 * 679 */ 680 int 681 bktr_mmap( dev_t dev, vm_offset_t offset, int nprot ) 682 { 683 int unit; 684 bktr_ptr_t bktr; 685 686 unit = UNIT(minor(dev)); 687 688 if (FUNCTION(minor(dev)) > 0) /* only allow mmap on /dev/bktr[n] */ 689 return( -1 ); 690 691 /* Get the device data */ 692 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 693 if (bktr == NULL) { 694 /* the device is no longer valid/functioning */ 695 return (ENXIO); 696 } 697 698 if (nprot & PROT_EXEC) 699 return( -1 ); 700 701 if (offset < 0) 702 return( -1 ); 703 704 if (offset >= bktr->alloc_pages * PAGE_SIZE) 705 return( -1 ); 706 707 return( atop(vtophys(bktr->bigbuf) + offset) ); 708 } 709 710 int bktr_poll( dev_t dev, int events, struct proc *p) 711 { 712 int unit; 713 bktr_ptr_t bktr; 714 int revents = 0; 715 DECLARE_INTR_MASK(s); 716 717 unit = UNIT(minor(dev)); 718 719 /* Get the device data */ 720 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 721 if (bktr == NULL) { 722 /* the device is no longer valid/functioning */ 723 return (ENXIO); 724 } 725 726 DISABLE_INTR(s); 727 728 if (events & (POLLIN | POLLRDNORM)) { 729 730 switch ( FUNCTION( minor(dev) ) ) { 731 case VBI_DEV: 732 if(bktr->vbisize == 0) 733 selrecord(p, &bktr->vbi_select); 734 else 735 revents |= events & (POLLIN | POLLRDNORM); 736 break; 737 } 738 } 739 740 ENABLE_INTR(s); 741 742 return (revents); 743 } 744 745 #endif /* FreeBSD 4.x specific kernel interface routines */ 746 747 /**********************************/ 748 /* *** FreeBSD 2.2.x and 3.x *** */ 749 /**********************************/ 750 751 #if ((__FreeBSD__ == 2) || (__FreeBSD__ == 3)) 752 753 static bktr_reg_t brooktree[ NBKTR ]; 754 755 static const char* bktr_probe( pcici_t tag, pcidi_t type ); 756 static void bktr_attach( pcici_t tag, int unit ); 757 static void bktr_intr(void *arg) { common_bktr_intr(arg); } 758 759 static u_long bktr_count; 760 761 static struct pci_device bktr_device = { 762 "bktr", 763 bktr_probe, 764 bktr_attach, 765 &bktr_count 766 }; 767 768 DATA_SET (pcidevice_set, bktr_device); 769 770 static d_open_t bktr_open; 771 static d_close_t bktr_close; 772 static d_read_t bktr_read; 773 static d_write_t bktr_write; 774 static d_ioctl_t bktr_ioctl; 775 static d_mmap_t bktr_mmap; 776 static d_poll_t bktr_poll; 777 778 #define CDEV_MAJOR 92 779 static struct cdevsw bktr_cdevsw = 780 { 781 bktr_open, bktr_close, bktr_read, bktr_write, 782 bktr_ioctl, nostop, nullreset, nodevtotty, 783 bktr_poll, bktr_mmap, NULL, "bktr", 784 NULL, -1 785 }; 786 787 static int bktr_devsw_installed; 788 789 static void 790 bktr_drvinit( void *unused ) 791 { 792 dev_t dev; 793 794 if ( ! bktr_devsw_installed ) { 795 dev = makedev(CDEV_MAJOR, 0); 796 cdevsw_add(&dev,&bktr_cdevsw, NULL); 797 bktr_devsw_installed = 1; 798 } 799 } 800 801 SYSINIT(bktrdev,SI_SUB_DRIVERS,SI_ORDER_MIDDLE+CDEV_MAJOR,bktr_drvinit,NULL) 802 803 /* 804 * the boot time probe routine. 805 */ 806 static const char* 807 bktr_probe( pcici_t tag, pcidi_t type ) 808 { 809 unsigned int rev = pci_conf_read( tag, PCIR_REVID) & 0x000000ff; 810 811 switch (type) { 812 case BROOKTREE_848_PCI_ID: 813 if (rev == 0x12) return("BrookTree 848A"); 814 else return("BrookTree 848"); 815 case BROOKTREE_849_PCI_ID: 816 return("BrookTree 849A"); 817 case BROOKTREE_878_PCI_ID: 818 return("BrookTree 878"); 819 case BROOKTREE_879_PCI_ID: 820 return("BrookTree 879"); 821 }; 822 823 return ((char *)0); 824 } 825 826 /* 827 * the attach routine. 828 */ 829 static void 830 bktr_attach( pcici_t tag, int unit ) 831 { 832 bktr_ptr_t bktr; 833 u_long latency; 834 u_long fun; 835 unsigned int rev; 836 unsigned long base; 837 #ifdef BROOKTREE_IRQ 838 u_long old_irq, new_irq; 839 #endif 840 841 bktr = &brooktree[unit]; 842 843 if (unit >= NBKTR) { 844 printf("brooktree%d: attach: only %d units configured.\n", 845 unit, NBKTR); 846 printf("brooktree%d: attach: invalid unit number.\n", unit); 847 return; 848 } 849 850 /* Enable Memory Mapping */ 851 fun = pci_conf_read(tag, PCI_COMMAND_STATUS_REG); 852 pci_conf_write(tag, PCI_COMMAND_STATUS_REG, fun | 2); 853 854 /* Enable Bus Mastering */ 855 fun = pci_conf_read(tag, PCI_COMMAND_STATUS_REG); 856 pci_conf_write(tag, PCI_COMMAND_STATUS_REG, fun | 4); 857 858 bktr->tag = tag; 859 860 861 /* 862 * Map control/status registers 863 */ 864 pci_map_mem( tag, PCI_MAP_REG_START, (vm_offset_t *) &base, 865 &bktr->phys_base ); 866 #if (__FreeBSD_version >= 300000) 867 bktr->memt = I386_BUS_SPACE_MEM; /* XXX should use proper bus space */ 868 bktr->memh = (bus_space_handle_t)base; /* XXX functions here */ 869 #endif 870 871 /* 872 * Disable the brooktree device 873 */ 874 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED); 875 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED); 876 877 #ifdef BROOKTREE_IRQ /* from the configuration file */ 878 old_irq = pci_conf_read(tag, PCI_INTERRUPT_REG); 879 pci_conf_write(tag, PCI_INTERRUPT_REG, BROOKTREE_IRQ); 880 new_irq = pci_conf_read(tag, PCI_INTERRUPT_REG); 881 printf("bktr%d: attach: irq changed from %d to %d\n", 882 unit, (old_irq & 0xff), (new_irq & 0xff)); 883 #endif 884 885 /* 886 * setup the interrupt handling routine 887 */ 888 pci_map_int(tag, bktr_intr, (void*) bktr, &tty_imask); 889 890 891 /* Update the Device Control Register */ 892 /* on Bt878 and Bt879 cards */ 893 fun = pci_conf_read(tag, 0x40); 894 fun = fun | 1; /* Enable writes to the sub-system vendor ID */ 895 896 #if defined( BKTR_430_FX_MODE ) 897 if (bootverbose) printf("Using 430 FX chipset compatibilty mode\n"); 898 fun = fun | 2; /* Enable Intel 430 FX compatibility mode */ 899 #endif 900 901 #if defined( BKTR_SIS_VIA_MODE ) 902 if (bootverbose) printf("Using SiS/VIA chipset compatibilty mode\n"); 903 fun = fun | 4; /* Enable SiS/VIA compatibility mode (usefull for 904 OPTi chipset motherboards too */ 905 #endif 906 pci_conf_write(tag, 0x40, fun); 907 908 909 /* XXX call bt848_i2c dependent attach() routine */ 910 #if (NSMBUS > 0) 911 if (bt848_i2c_attach(unit, bktr, &bktr->i2c_sc)) 912 printf("bktr%d: i2c_attach: can't attach\n", unit); 913 #endif 914 915 916 /* 917 * PCI latency timer. 32 is a good value for 4 bus mastering slots, if 918 * you have more than four, then 16 would probably be a better value. 919 */ 920 #ifndef BROOKTREE_DEF_LATENCY_VALUE 921 #define BROOKTREE_DEF_LATENCY_VALUE 10 922 #endif 923 latency = pci_conf_read(tag, PCI_LATENCY_TIMER); 924 latency = (latency >> 8) & 0xff; 925 if ( bootverbose ) { 926 if (latency) 927 printf("brooktree%d: PCI bus latency is", unit); 928 else 929 printf("brooktree%d: PCI bus latency was 0 changing to", 930 unit); 931 } 932 if ( !latency ) { 933 latency = BROOKTREE_DEF_LATENCY_VALUE; 934 pci_conf_write(tag, PCI_LATENCY_TIMER, latency<<8); 935 } 936 if ( bootverbose ) { 937 printf(" %d.\n", (int) latency); 938 } 939 940 941 /* read the pci device id and revision id */ 942 fun = pci_conf_read(tag, PCI_ID_REG); 943 rev = pci_conf_read(tag, PCIR_REVID) & 0x000000ff; 944 945 /* call the common attach code */ 946 common_bktr_attach( bktr, unit, fun, rev ); 947 948 #ifdef DEVFS 949 /* XXX This just throw away the token, which should probably be fixed when 950 DEVFS is finally made really operational. */ 951 devfs_add_devswf(&bktr_cdevsw, unit, DV_CHR, 0, 0, 0444, "bktr%d", unit); 952 devfs_add_devswf(&bktr_cdevsw, unit+16, DV_CHR, 0, 0, 0444, "tuner%d", unit); 953 devfs_add_devswf(&bktr_cdevsw, unit+32, DV_CHR, 0, 0, 0444, "vbi%d", unit); 954 #endif /* DEVFS */ 955 956 } 957 958 959 /* 960 * Special Memory Allocation 961 */ 962 vm_offset_t 963 get_bktr_mem( int unit, unsigned size ) 964 { 965 vm_offset_t addr = 0; 966 967 addr = vm_page_alloc_contig(size, 0x100000, 0xffffffff, 1<<24); 968 if (addr == 0) 969 addr = vm_page_alloc_contig(size, 0x100000, 0xffffffff, 970 PAGE_SIZE); 971 if (addr == 0) { 972 printf("bktr%d: Unable to allocate %d bytes of memory.\n", 973 unit, size); 974 } 975 976 return( addr ); 977 } 978 979 /*--------------------------------------------------------- 980 ** 981 ** BrookTree 848 character device driver routines 982 ** 983 **--------------------------------------------------------- 984 */ 985 986 987 #define VIDEO_DEV 0x00 988 #define TUNER_DEV 0x01 989 #define VBI_DEV 0x02 990 991 #define UNIT(x) ((x) & 0x0f) 992 #define FUNCTION(x) ((x >> 4) & 0x0f) 993 994 995 /* 996 * 997 */ 998 int 999 bktr_open( dev_t dev, int flags, int fmt, struct proc *p ) 1000 { 1001 bktr_ptr_t bktr; 1002 int unit; 1003 1004 unit = UNIT( minor(dev) ); 1005 if (unit >= NBKTR) /* unit out of range */ 1006 return( ENXIO ); 1007 1008 bktr = &(brooktree[ unit ]); 1009 1010 if (!(bktr->flags & METEOR_INITALIZED)) /* device not found */ 1011 return( ENXIO ); 1012 1013 1014 if (bt848_card != -1) { 1015 if ((bt848_card >> 8 == unit ) && 1016 ( (bt848_card & 0xff) < Bt848_MAX_CARD )) { 1017 if ( bktr->bt848_card != (bt848_card & 0xff) ) { 1018 bktr->bt848_card = (bt848_card & 0xff); 1019 probeCard(bktr, FALSE, unit); 1020 } 1021 } 1022 } 1023 1024 if (bt848_tuner != -1) { 1025 if ((bt848_tuner >> 8 == unit ) && 1026 ( (bt848_tuner & 0xff) < Bt848_MAX_TUNER )) { 1027 if ( bktr->bt848_tuner != (bt848_tuner & 0xff) ) { 1028 bktr->bt848_tuner = (bt848_tuner & 0xff); 1029 probeCard(bktr, FALSE, unit); 1030 } 1031 } 1032 } 1033 1034 if (bt848_reverse_mute != -1) { 1035 if ((bt848_reverse_mute >> 8) == unit ) { 1036 bktr->reverse_mute = bt848_reverse_mute & 0xff; 1037 } 1038 } 1039 1040 if (bt848_slow_msp_audio != -1) { 1041 if ((bt848_slow_msp_audio >> 8) == unit ) { 1042 bktr->slow_msp_audio = (bt848_slow_msp_audio & 0xff); 1043 } 1044 } 1045 1046 switch ( FUNCTION( minor(dev) ) ) { 1047 case VIDEO_DEV: 1048 return( video_open( bktr ) ); 1049 case TUNER_DEV: 1050 return( tuner_open( bktr ) ); 1051 case VBI_DEV: 1052 return( vbi_open( bktr ) ); 1053 } 1054 return( ENXIO ); 1055 } 1056 1057 1058 /* 1059 * 1060 */ 1061 int 1062 bktr_close( dev_t dev, int flags, int fmt, struct proc *p ) 1063 { 1064 bktr_ptr_t bktr; 1065 int unit; 1066 1067 unit = UNIT( minor(dev) ); 1068 if (unit >= NBKTR) /* unit out of range */ 1069 return( ENXIO ); 1070 1071 bktr = &(brooktree[ unit ]); 1072 1073 switch ( FUNCTION( minor(dev) ) ) { 1074 case VIDEO_DEV: 1075 return( video_close( bktr ) ); 1076 case TUNER_DEV: 1077 return( tuner_close( bktr ) ); 1078 case VBI_DEV: 1079 return( vbi_close( bktr ) ); 1080 } 1081 1082 return( ENXIO ); 1083 } 1084 1085 /* 1086 * 1087 */ 1088 int 1089 bktr_read( dev_t dev, struct uio *uio, int ioflag ) 1090 { 1091 bktr_ptr_t bktr; 1092 int unit; 1093 1094 unit = UNIT(minor(dev)); 1095 if (unit >= NBKTR) /* unit out of range */ 1096 return( ENXIO ); 1097 1098 bktr = &(brooktree[unit]); 1099 1100 switch ( FUNCTION( minor(dev) ) ) { 1101 case VIDEO_DEV: 1102 return( video_read( bktr, unit, dev, uio ) ); 1103 case VBI_DEV: 1104 return( vbi_read( bktr, uio, ioflag ) ); 1105 } 1106 return( ENXIO ); 1107 } 1108 1109 1110 /* 1111 * 1112 */ 1113 int 1114 bktr_write( dev_t dev, struct uio *uio, int ioflag ) 1115 { 1116 return( EINVAL ); /* XXX or ENXIO ? */ 1117 } 1118 1119 /* 1120 * 1121 */ 1122 int 1123 bktr_ioctl( dev_t dev, ioctl_cmd_t cmd, caddr_t arg, int flag, struct proc* pr ) 1124 { 1125 bktr_ptr_t bktr; 1126 int unit; 1127 1128 unit = UNIT(minor(dev)); 1129 if (unit >= NBKTR) /* unit out of range */ 1130 return( ENXIO ); 1131 1132 bktr = &(brooktree[ unit ]); 1133 1134 if (bktr->bigbuf == 0) /* no frame buffer allocated (ioctl failed) */ 1135 return( ENOMEM ); 1136 1137 switch ( FUNCTION( minor(dev) ) ) { 1138 case VIDEO_DEV: 1139 return( video_ioctl( bktr, unit, cmd, arg, pr ) ); 1140 case TUNER_DEV: 1141 return( tuner_ioctl( bktr, unit, cmd, arg, pr ) ); 1142 } 1143 1144 return( ENXIO ); 1145 } 1146 1147 /* 1148 * bktr_mmap. 1149 * Note: 2.2.5/2.2.6/2.2.7/3.0 users must manually 1150 * edit the line below and change "vm_offset_t" to "int" 1151 */ 1152 int bktr_mmap( dev_t dev, vm_offset_t offset, int nprot ) 1153 1154 { 1155 int unit; 1156 bktr_ptr_t bktr; 1157 1158 unit = UNIT(minor(dev)); 1159 1160 if (unit >= NBKTR || FUNCTION(minor(dev)) > 0) 1161 return( -1 ); 1162 1163 bktr = &(brooktree[ unit ]); 1164 1165 if (nprot & PROT_EXEC) 1166 return( -1 ); 1167 1168 if (offset < 0) 1169 return( -1 ); 1170 1171 if (offset >= bktr->alloc_pages * PAGE_SIZE) 1172 return( -1 ); 1173 1174 return( i386_btop(vtophys(bktr->bigbuf) + offset) ); 1175 } 1176 1177 int bktr_poll( dev_t dev, int events, struct proc *p) 1178 { 1179 int unit; 1180 bktr_ptr_t bktr; 1181 int revents = 0; 1182 1183 unit = UNIT(minor(dev)); 1184 1185 if (unit >= NBKTR) 1186 return( -1 ); 1187 1188 bktr = &(brooktree[ unit ]); 1189 1190 disable_intr(); 1191 1192 if (events & (POLLIN | POLLRDNORM)) { 1193 1194 switch ( FUNCTION( minor(dev) ) ) { 1195 case VBI_DEV: 1196 if(bktr->vbisize == 0) 1197 selrecord(p, &bktr->vbi_select); 1198 else 1199 revents |= events & (POLLIN | POLLRDNORM); 1200 break; 1201 } 1202 } 1203 1204 enable_intr(); 1205 1206 return (revents); 1207 } 1208 1209 1210 #endif /* FreeBSD 2.2.x and 3.x specific kernel interface routines */ 1211 1212 1213 /*****************/ 1214 /* *** BSDI *** */ 1215 /*****************/ 1216 1217 #if defined(__bsdi__) 1218 #endif /* __bsdi__ BSDI specific kernel interface routines */ 1219 1220 1221 /*****************************/ 1222 /* *** OpenBSD / NetBSD *** */ 1223 /*****************************/ 1224 #if defined(__NetBSD__) || defined(__OpenBSD__) 1225 1226 1227 #define IPL_VIDEO IPL_BIO /* XXX */ 1228 1229 static int bktr_intr(void *arg) { return common_bktr_intr(arg); } 1230 1231 #define bktr_open bktropen 1232 #define bktr_close bktrclose 1233 #define bktr_read bktrread 1234 #define bktr_write bktrwrite 1235 #define bktr_ioctl bktrioctl 1236 #define bktr_mmap bktrmmap 1237 1238 int bktr_open __P((dev_t, int, int, struct proc *)); 1239 int bktr_close __P((dev_t, int, int, struct proc *)); 1240 int bktr_read __P((dev_t, struct uio *, int)); 1241 int bktr_write __P((dev_t, struct uio *, int)); 1242 int bktr_ioctl __P((dev_t, ioctl_cmd_t, caddr_t, int, struct proc*)); 1243 int bktr_mmap __P((dev_t, vm_offset_t, int)); 1244 1245 vm_offset_t vm_page_alloc_contig(vm_offset_t, vm_offset_t, 1246 vm_offset_t, vm_offset_t); 1247 1248 #if defined(__BROKEN_INDIRECT_CONFIG) || defined(__OpenBSD__) 1249 static int bktr_probe __P((struct device *, void *, void *)); 1250 #else 1251 static int bktr_probe __P((struct device *, struct cfdata *, void *)); 1252 #endif 1253 static void bktr_attach __P((struct device *, struct device *, void *)); 1254 1255 struct cfattach bktr_ca = { 1256 sizeof(struct bktr_softc), bktr_probe, bktr_attach 1257 }; 1258 1259 #if defined(__NetBSD__) 1260 extern struct cfdriver bktr_cd; 1261 #else 1262 struct cfdriver bktr_cd = { 1263 NULL, "bktr", DV_DULL 1264 }; 1265 #endif 1266 1267 int bktr_probe(parent, match, aux) 1268 struct device *parent; 1269 #if defined(__BROKEN_INDIRECT_CONFIG) || defined(__OpenBSD__) 1270 void *match; 1271 #else 1272 struct cfdata *match; 1273 #endif 1274 void *aux; 1275 { 1276 struct pci_attach_args *pa = aux; 1277 1278 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_BROOKTREE && 1279 (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT848 || 1280 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT849 || 1281 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT878 || 1282 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT879)) 1283 return 1; 1284 1285 return 0; 1286 } 1287 1288 1289 /* 1290 * the attach routine. 1291 */ 1292 static void 1293 bktr_attach __P((struct device *parent, struct device *self, void *aux)) 1294 { 1295 bktr_ptr_t bktr; 1296 u_long latency; 1297 u_long fun; 1298 unsigned int rev; 1299 1300 #if defined(__OpenBSD__) 1301 struct pci_attach_args *pa = aux; 1302 pci_chipset_tag_t pc = pa->pa_pc; 1303 1304 pci_intr_handle_t ih; 1305 const char *intrstr; 1306 int retval; 1307 int unit; 1308 1309 bktr = (bktr_ptr_t)self; 1310 unit = bktr->bktr_dev.dv_unit; 1311 1312 bktr->pc = pa->pa_pc; 1313 bktr->tag = pa->pa_tag; 1314 bktr->dmat = pa->pa_dmat; 1315 1316 /* 1317 * map memory 1318 */ 1319 bktr->memt = pa->pa_memt; 1320 retval = pci_mem_find(pc, pa->pa_tag, PCI_MAPREG_START, 1321 &bktr->phys_base, &bktr->obmemsz, NULL); 1322 if (!retval) 1323 retval = bus_space_map(pa->pa_memt, bktr->phys_base, 1324 bktr->obmemsz, 0, &bktr->memh); 1325 if (retval) { 1326 printf(": couldn't map memory\n"); 1327 return; 1328 } 1329 1330 1331 /* 1332 * map interrupt 1333 */ 1334 if (pci_intr_map(pa->pa_pc, pa->pa_intrtag, pa->pa_intrpin, 1335 pa->pa_intrline, &ih)) { 1336 printf(": couldn't map interrupt\n"); 1337 return; 1338 } 1339 intrstr = pci_intr_string(pa->pa_pc, ih); 1340 1341 bktr->ih = pci_intr_establish(pa->pa_pc, ih, IPL_VIDEO, 1342 bktr_intr, bktr, bktr->bktr_dev.dv_xname); 1343 if (bktr->ih == NULL) { 1344 printf(": couldn't establish interrupt"); 1345 if (intrstr != NULL) 1346 printf(" at %s", intrstr); 1347 printf("\n"); 1348 return; 1349 } 1350 1351 if (intrstr != NULL) 1352 printf(": %s\n", intrstr); 1353 #endif /* __OpenBSD__ */ 1354 1355 #if defined(__NetBSD__) 1356 struct pci_attach_args *pa = aux; 1357 pci_intr_handle_t ih; 1358 const char *intrstr; 1359 int retval; 1360 int unit; 1361 1362 bktr = (bktr_ptr_t)self; 1363 unit = bktr->bktr_dev.dv_unit; 1364 bktr->dmat = pa->pa_dmat; 1365 1366 printf("\n"); 1367 1368 /* 1369 * map memory 1370 */ 1371 retval = pci_mapreg_map(pa, PCI_MAPREG_START, 1372 PCI_MAPREG_TYPE_MEM | PCI_MAPREG_MEM_TYPE_32BIT, 0, 1373 &bktr->memt, &bktr->memh, &bktr->phys_base, 1374 &bktr->obmemsz); 1375 DPR(("pci_mapreg_map: memt %x, memh %x, base %x, size %x\n", 1376 bktr->memt, (u_int)bktr->memh, 1377 (u_int)bktr->phys_base, (u_int)bktr->obmemsz)); 1378 if (retval) { 1379 printf("%s: couldn't map memory\n", bktr->bktr_dev.dv_xname); 1380 return; 1381 } 1382 1383 /* 1384 * Disable the brooktree device 1385 */ 1386 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED); 1387 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED); 1388 1389 /* 1390 * map interrupt 1391 */ 1392 if (pci_intr_map(pa->pa_pc, pa->pa_intrtag, pa->pa_intrpin, 1393 pa->pa_intrline, &ih)) { 1394 printf("%s: couldn't map interrupt\n", bktr->bktr_dev.dv_xname); 1395 return; 1396 } 1397 intrstr = pci_intr_string(pa->pa_pc, ih); 1398 bktr->ih = pci_intr_establish(pa->pa_pc, ih, IPL_VIDEO, 1399 bktr_intr, bktr); 1400 if (bktr->ih == NULL) { 1401 printf("%s: couldn't establish interrupt", 1402 bktr->bktr_dev.dv_xname); 1403 if (intrstr != NULL) 1404 printf(" at %s", intrstr); 1405 printf("\n"); 1406 return; 1407 } 1408 if (intrstr != NULL) 1409 printf("%s: interrupting at %s\n", bktr->bktr_dev.dv_xname, 1410 intrstr); 1411 #endif /* __NetBSD__ */ 1412 1413 /* 1414 * PCI latency timer. 32 is a good value for 4 bus mastering slots, if 1415 * you have more than four, then 16 would probably be a better value. 1416 */ 1417 #ifndef BROOKTREE_DEF_LATENCY_VALUE 1418 #define BROOKTREE_DEF_LATENCY_VALUE 10 1419 #endif 1420 latency = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_LATENCY_TIMER); 1421 latency = (latency >> 8) & 0xff; 1422 1423 if ( !latency ) { 1424 if ( bootverbose ) { 1425 printf("%s: PCI bus latency was 0 changing to %d", 1426 bktr->bktr_dev.dv_xname, 1427 BROOKTREE_DEF_LATENCY_VALUE); 1428 } 1429 latency = BROOKTREE_DEF_LATENCY_VALUE; 1430 pci_conf_write(pa->pa_pc, pa->pa_tag, 1431 PCI_LATENCY_TIMER, latency<<8); 1432 } 1433 1434 1435 /* Enabled Bus Master and Memory Mapping */ 1436 fun = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); 1437 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, fun | 2); 1438 fun = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); 1439 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, fun | 4); 1440 1441 /* read the pci id and determine the card type */ 1442 fun = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_ID_REG); 1443 rev = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_CLASS_REG) & 0x000000ff; 1444 1445 common_bktr_attach( bktr, unit, fun, rev ); 1446 } 1447 1448 1449 /* 1450 * Special Memory Allocation 1451 */ 1452 vm_offset_t 1453 get_bktr_mem(bktr, dmapp, size) 1454 bktr_ptr_t bktr; 1455 bus_dmamap_t *dmapp; 1456 unsigned int size; 1457 { 1458 bus_dma_tag_t dmat = bktr->dmat; 1459 bus_dma_segment_t seg; 1460 bus_size_t align; 1461 int rseg; 1462 caddr_t kva; 1463 1464 /* 1465 * Allocate a DMA area 1466 */ 1467 align = 1 << 24; 1468 if (bus_dmamem_alloc(dmat, size, align, 0, &seg, 1, 1469 &rseg, BUS_DMA_NOWAIT)) { 1470 align = PAGE_SIZE; 1471 if (bus_dmamem_alloc(dmat, size, align, 0, &seg, 1, 1472 &rseg, BUS_DMA_NOWAIT)) { 1473 printf("bktr%d: Unable to dmamem_alloc of %d bytes\n", 1474 bktr->bktr_dev.dv_unit, size); 1475 return 0; 1476 } 1477 } 1478 if (bus_dmamem_map(dmat, &seg, rseg, size, 1479 &kva, BUS_DMA_NOWAIT|BUS_DMA_COHERENT)) { 1480 printf("bktr%d: Unable to dmamem_map of %d bytes\n", 1481 bktr->bktr_dev.dv_unit, size); 1482 bus_dmamem_free(dmat, &seg, rseg); 1483 return 0; 1484 } 1485 #ifdef __OpenBSD__ 1486 bktr->dm_mapsize = size; 1487 #endif 1488 /* 1489 * Create and locd the DMA map for the DMA area 1490 */ 1491 if (bus_dmamap_create(dmat, size, 1, size, 0, BUS_DMA_NOWAIT, dmapp)) { 1492 printf("bktr%d: Unable to dmamap_create of %d bytes\n", 1493 bktr->bktr_dev.dv_unit, size); 1494 bus_dmamem_unmap(dmat, kva, size); 1495 bus_dmamem_free(dmat, &seg, rseg); 1496 return 0; 1497 } 1498 if (bus_dmamap_load(dmat, *dmapp, kva, size, NULL, BUS_DMA_NOWAIT)) { 1499 printf("bktr%d: Unable to dmamap_load of %d bytes\n", 1500 bktr->bktr_dev.dv_unit, size); 1501 bus_dmamem_unmap(dmat, kva, size); 1502 bus_dmamem_free(dmat, &seg, rseg); 1503 bus_dmamap_destroy(dmat, *dmapp); 1504 return 0; 1505 } 1506 return (vm_offset_t)kva; 1507 } 1508 1509 void 1510 free_bktr_mem(bktr, dmap, kva) 1511 bktr_ptr_t bktr; 1512 bus_dmamap_t dmap; 1513 vm_offset_t kva; 1514 { 1515 bus_dma_tag_t dmat = bktr->dmat; 1516 1517 #ifdef __NetBSD__ 1518 bus_dmamem_unmap(dmat, (caddr_t)kva, dmap->dm_mapsize); 1519 #else 1520 bus_dmamem_unmap(dmat, (caddr_t)kva, bktr->dm_mapsize); 1521 #endif 1522 bus_dmamem_free(dmat, dmap->dm_segs, 1); 1523 bus_dmamap_destroy(dmat, dmap); 1524 } 1525 1526 1527 /*--------------------------------------------------------- 1528 ** 1529 ** BrookTree 848 character device driver routines 1530 ** 1531 **--------------------------------------------------------- 1532 */ 1533 1534 1535 #define VIDEO_DEV 0x00 1536 #define TUNER_DEV 0x01 1537 #define VBI_DEV 0x02 1538 1539 #define UNIT(x) ((x) & 0x0f) 1540 #define FUNCTION(x) ((x >> 4) & 0x0f) 1541 1542 /* 1543 * 1544 */ 1545 int 1546 bktr_open( dev_t dev, int flags, int fmt, struct proc *p ) 1547 { 1548 bktr_ptr_t bktr; 1549 int unit; 1550 1551 unit = UNIT( minor(dev) ); 1552 1553 /* unit out of range */ 1554 if ((unit > bktr_cd.cd_ndevs) || (bktr_cd.cd_devs[unit] == NULL)) 1555 return( ENXIO ); 1556 1557 bktr = bktr_cd.cd_devs[unit]; 1558 1559 1560 if (!(bktr->flags & METEOR_INITALIZED)) /* device not found */ 1561 return( ENXIO ); 1562 1563 switch ( FUNCTION( minor(dev) ) ) { 1564 case VIDEO_DEV: 1565 return( video_open( bktr ) ); 1566 case TUNER_DEV: 1567 return( tuner_open( bktr ) ); 1568 case VBI_DEV: 1569 return( vbi_open( bktr ) ); 1570 } 1571 1572 return( ENXIO ); 1573 } 1574 1575 1576 /* 1577 * 1578 */ 1579 int 1580 bktr_close( dev_t dev, int flags, int fmt, struct proc *p ) 1581 { 1582 bktr_ptr_t bktr; 1583 int unit; 1584 1585 unit = UNIT( minor(dev) ); 1586 1587 /* unit out of range */ 1588 if ((unit > bktr_cd.cd_ndevs) || (bktr_cd.cd_devs[unit] == NULL)) 1589 return( ENXIO ); 1590 1591 bktr = bktr_cd.cd_devs[unit]; 1592 1593 switch ( FUNCTION( minor(dev) ) ) { 1594 case VIDEO_DEV: 1595 return( video_close( bktr ) ); 1596 case TUNER_DEV: 1597 return( tuner_close( bktr ) ); 1598 case VBI_DEV: 1599 return( vbi_close( bktr ) ); 1600 } 1601 1602 return( ENXIO ); 1603 } 1604 1605 /* 1606 * 1607 */ 1608 int 1609 bktr_read( dev_t dev, struct uio *uio, int ioflag ) 1610 { 1611 bktr_ptr_t bktr; 1612 int unit; 1613 1614 unit = UNIT(minor(dev)); 1615 1616 /* unit out of range */ 1617 if ((unit > bktr_cd.cd_ndevs) || (bktr_cd.cd_devs[unit] == NULL)) 1618 return( ENXIO ); 1619 1620 bktr = bktr_cd.cd_devs[unit]; 1621 1622 switch ( FUNCTION( minor(dev) ) ) { 1623 case VIDEO_DEV: 1624 return( video_read( bktr, unit, dev, uio ) ); 1625 case VBI_DEV: 1626 return( vbi_read( bktr, uio, ioflag ) ); 1627 } 1628 1629 return( ENXIO ); 1630 } 1631 1632 1633 /* 1634 * 1635 */ 1636 int 1637 bktr_write( dev_t dev, struct uio *uio, int ioflag ) 1638 { 1639 /* operation not supported */ 1640 return( EOPNOTSUPP ); 1641 } 1642 1643 /* 1644 * 1645 */ 1646 int 1647 bktr_ioctl( dev_t dev, ioctl_cmd_t cmd, caddr_t arg, int flag, struct proc* pr ) 1648 { 1649 bktr_ptr_t bktr; 1650 int unit; 1651 1652 unit = UNIT(minor(dev)); 1653 1654 /* unit out of range */ 1655 if ((unit > bktr_cd.cd_ndevs) || (bktr_cd.cd_devs[unit] == NULL)) 1656 return( ENXIO ); 1657 1658 bktr = bktr_cd.cd_devs[unit]; 1659 1660 if (bktr->bigbuf == 0) /* no frame buffer allocated (ioctl failed) */ 1661 return( ENOMEM ); 1662 1663 switch ( FUNCTION( minor(dev) ) ) { 1664 case VIDEO_DEV: 1665 return( video_ioctl( bktr, unit, cmd, arg, pr ) ); 1666 case TUNER_DEV: 1667 return( tuner_ioctl( bktr, unit, cmd, arg, pr ) ); 1668 } 1669 1670 return( ENXIO ); 1671 } 1672 1673 /* 1674 * 1675 */ 1676 int 1677 bktr_mmap( dev_t dev, vm_offset_t offset, int nprot ) 1678 { 1679 int unit; 1680 bktr_ptr_t bktr; 1681 1682 unit = UNIT(minor(dev)); 1683 1684 /* unit out of range */ 1685 if ((unit > bktr_cd.cd_ndevs) || (bktr_cd.cd_devs[unit] == NULL)) 1686 return( -1 ); 1687 if (FUNCTION(minor(dev)) > 0) 1688 return( -1 ); 1689 1690 bktr = bktr_cd.cd_devs[unit]; 1691 1692 if (offset < 0) 1693 return( -1 ); 1694 1695 if (offset >= bktr->alloc_pages * PAGE_SIZE) 1696 return( -1 ); 1697 1698 #ifdef __NetBSD__ 1699 return (bus_dmamem_mmap(bktr->dmat, bktr->dm_mem->dm_segs, 1, 1700 offset, nprot, BUS_DMA_WAITOK)); 1701 #else 1702 return( i386_btop(vtophys(bktr->bigbuf) + offset) ); 1703 #endif 1704 } 1705 1706 #endif /* __NetBSD__ || __OpenBSD__ */ 1707
Indexes created Wed Oct 29 09:09:48 GMT 2025