bktr_os.c revision 1.4
1 /* $NetBSD: bktr_os.c,v 1.4 2000/05/07 14:43:32 veego 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/bt8xx.h> /* NetBSD location for .h files */ 113 #include <dev/pci/bktr/bktr_reg.h> 114 #include <dev/pci/bktr/bktr_tuner.h> 115 #include <dev/pci/bktr/bktr_card.h> 116 #include <dev/pci/bktr/bktr_audio.h> 117 #include <dev/pci/bktr/bktr_core.h> 118 #include <dev/pci/bktr/bktr_os.h> 119 #else /* Traditional location for .h files */ 120 #include <machine/ioctl_meteor.h> 121 #include <machine/ioctl_bt848.h> /* extensions to ioctl_meteor.h */ 122 #include <dev/bktr/bktr_reg.h> 123 #include <dev/bktr/bktr_tuner.h> 124 #include <dev/bktr/bktr_card.h> 125 #include <dev/bktr/bktr_audio.h> 126 #include <dev/bktr/bktr_core.h> 127 #include <dev/bktr/bktr_os.h> 128 #endif 129 130 #if defined(__FreeBSD__) 131 #if (NSMBUS > 0) 132 #include <dev/bktr/bktr_i2c.h> 133 #endif 134 135 #include <sys/sysctl.h> 136 int bt848_card = -1; 137 int bt848_tuner = -1; 138 int bt848_reverse_mute = -1; 139 int bt848_format = -1; 140 int bt848_slow_msp_audio = -1; 141 142 SYSCTL_NODE(_hw, OID_AUTO, bt848, CTLFLAG_RW, 0, "Bt848 Driver mgmt"); 143 SYSCTL_INT(_hw_bt848, OID_AUTO, card, CTLFLAG_RW, &bt848_card, -1, ""); 144 SYSCTL_INT(_hw_bt848, OID_AUTO, tuner, CTLFLAG_RW, &bt848_tuner, -1, ""); 145 SYSCTL_INT(_hw_bt848, OID_AUTO, reverse_mute, CTLFLAG_RW, &bt848_reverse_mute, -1, ""); 146 SYSCTL_INT(_hw_bt848, OID_AUTO, format, CTLFLAG_RW, &bt848_format, -1, ""); 147 SYSCTL_INT(_hw_bt848, OID_AUTO, slow_msp_audio, CTLFLAG_RW, &bt848_slow_msp_audio, -1, ""); 148 #endif 149 150 #if (__FreeBSD__ == 2) 151 #define PCIR_REVID PCI_CLASS_REG 152 #endif 153 154 155 /****************/ 156 /* *** BSDI *** */ 157 /****************/ 158 #ifdef __bsdi__ 159 #endif /* __bsdi__ */ 160 161 162 /**************************/ 163 /* *** OpenBSD/NetBSD *** */ 164 /**************************/ 165 #if defined(__NetBSD__) || defined(__OpenBSD__) 166 #include <sys/device.h> 167 #include <dev/pci/pcivar.h> 168 #include <dev/pci/pcireg.h> 169 #include <dev/pci/pcidevs.h> 170 171 #define BKTR_DEBUG 172 #ifdef BKTR_DEBUG 173 int bktr_debug = 0; 174 #define DPR(x) (bktr_debug ? printf x : 0) 175 #else 176 #define DPR(x) 177 #endif 178 #endif /* __NetBSD__ || __OpenBSD__ */ 179 180 181 182 /****************************/ 183 /* *** FreeBSD 4.x code *** */ 184 /****************************/ 185 #if (__FreeBSD_version >= 400000) 186 187 static int bktr_probe( device_t dev ); 188 static int bktr_attach( device_t dev ); 189 static int bktr_detach( device_t dev ); 190 static int bktr_shutdown( device_t dev ); 191 static void bktr_intr(void *arg) { common_bktr_intr(arg); } 192 193 static device_method_t bktr_methods[] = { 194 /* Device interface */ 195 DEVMETHOD(device_probe, bktr_probe), 196 DEVMETHOD(device_attach, bktr_attach), 197 DEVMETHOD(device_detach, bktr_detach), 198 DEVMETHOD(device_shutdown, bktr_shutdown), 199 200 { 0, 0 } 201 }; 202 203 static driver_t bktr_driver = { 204 "bktr", 205 bktr_methods, 206 sizeof(struct bktr_softc), 207 }; 208 209 static devclass_t bktr_devclass; 210 211 static d_open_t bktr_open; 212 static d_close_t bktr_close; 213 static d_read_t bktr_read; 214 static d_write_t bktr_write; 215 static d_ioctl_t bktr_ioctl; 216 static d_mmap_t bktr_mmap; 217 static d_poll_t bktr_poll; 218 219 #define CDEV_MAJOR 92 220 static struct cdevsw bktr_cdevsw = { 221 /* open */ bktr_open, 222 /* close */ bktr_close, 223 /* read */ bktr_read, 224 /* write */ bktr_write, 225 /* ioctl */ bktr_ioctl, 226 /* poll */ bktr_poll, 227 /* mmap */ bktr_mmap, 228 /* strategy */ nostrategy, 229 /* name */ "bktr", 230 /* maj */ CDEV_MAJOR, 231 /* dump */ nodump, 232 /* psize */ nopsize, 233 /* flags */ 0, 234 /* bmaj */ -1 235 }; 236 237 DRIVER_MODULE(bktr, pci, bktr_driver, bktr_devclass, 0, 0); 238 239 240 /* 241 * the boot time probe routine. 242 */ 243 static int 244 bktr_probe( device_t dev ) 245 { 246 unsigned int type = pci_get_devid(dev); 247 unsigned int rev = pci_get_revid(dev); 248 249 switch (type) { 250 case BROOKTREE_848_PCI_ID: 251 if (rev == 0x12) device_set_desc(dev, "BrookTree 848A"); 252 else device_set_desc(dev, "BrookTree 848"); 253 return 0; 254 case BROOKTREE_849_PCI_ID: 255 device_set_desc(dev, "BrookTree 849A"); 256 return 0; 257 case BROOKTREE_878_PCI_ID: 258 device_set_desc(dev, "BrookTree 878"); 259 return 0; 260 case BROOKTREE_879_PCI_ID: 261 device_set_desc(dev, "BrookTree 879"); 262 return 0; 263 }; 264 265 return ENXIO; 266 } 267 268 269 /* 270 * the attach routine. 271 */ 272 static int 273 bktr_attach( device_t dev ) 274 { 275 u_long latency; 276 u_long fun; 277 u_long val; 278 unsigned int rev; 279 unsigned int unit; 280 int error = 0; 281 int rid; 282 #ifdef BROOKTREE_IRQ 283 u_long old_irq, new_irq; 284 #endif 285 286 struct bktr_softc *bktr = device_get_softc(dev); 287 288 unit = device_get_unit(dev); 289 290 /* 291 * Enable bus mastering and Memory Mapped device 292 */ 293 val = pci_read_config(dev, PCIR_COMMAND, 4); 294 val |= (PCIM_CMD_MEMEN|PCIM_CMD_BUSMASTEREN); 295 pci_write_config(dev, PCIR_COMMAND, val, 4); 296 297 /* 298 * Map control/status registers. 299 */ 300 rid = PCI_MAP_REG_START; 301 bktr->res_mem = bus_alloc_resource(dev, SYS_RES_MEMORY, &rid, 302 0, ~0, 1, RF_ACTIVE); 303 304 if (!bktr->res_mem) { 305 device_printf(dev, "could not map memory\n"); 306 error = ENXIO; 307 goto fail; 308 } 309 bktr->memt = rman_get_bustag(bktr->res_mem); 310 bktr->memh = rman_get_bushandle(bktr->res_mem); 311 312 313 /* 314 * Disable the brooktree device 315 */ 316 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED); 317 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED); 318 319 320 #ifdef BROOKTREE_IRQ /* from the configuration file */ 321 old_irq = pci_conf_read(tag, PCI_INTERRUPT_REG); 322 pci_conf_write(tag, PCI_INTERRUPT_REG, BROOKTREE_IRQ); 323 new_irq = pci_conf_read(tag, PCI_INTERRUPT_REG); 324 printf("bktr%d: attach: irq changed from %d to %d\n", 325 unit, (old_irq & 0xff), (new_irq & 0xff)); 326 #endif 327 328 /* 329 * Allocate our interrupt. 330 */ 331 rid = 0; 332 bktr->res_irq = bus_alloc_resource(dev, SYS_RES_IRQ, &rid, 0, ~0, 1, 333 RF_SHAREABLE | RF_ACTIVE); 334 if (bktr->res_irq == NULL) { 335 device_printf(dev, "could not map interrupt\n"); 336 error = ENXIO; 337 goto fail; 338 } 339 340 error = bus_setup_intr(dev, bktr->res_irq, INTR_TYPE_TTY, 341 bktr_intr, bktr, &bktr->res_ih); 342 if (error) { 343 device_printf(dev, "could not setup irq\n"); 344 goto fail; 345 346 } 347 348 349 /* Update the Device Control Register */ 350 /* on Bt878 and Bt879 cards */ 351 fun = pci_read_config( dev, 0x40, 2); 352 fun = fun | 1; /* Enable writes to the sub-system vendor ID */ 353 354 #if defined( BKTR_430_FX_MODE ) 355 if (bootverbose) printf("Using 430 FX chipset compatibilty mode\n"); 356 fun = fun | 2; /* Enable Intel 430 FX compatibility mode */ 357 #endif 358 359 #if defined( BKTR_SIS_VIA_MODE ) 360 if (bootverbose) printf("Using SiS/VIA chipset compatibilty mode\n"); 361 fun = fun | 4; /* Enable SiS/VIA compatibility mode (usefull for 362 OPTi chipset motherboards too */ 363 #endif 364 pci_write_config(dev, 0x40, fun, 2); 365 366 367 /* XXX call bt848_i2c dependent attach() routine */ 368 #if (NSMBUS > 0) 369 if (bt848_i2c_attach(unit, bktr, &bktr->i2c_sc)) 370 printf("bktr%d: i2c_attach: can't attach\n", unit); 371 #endif 372 373 374 /* 375 * PCI latency timer. 32 is a good value for 4 bus mastering slots, if 376 * you have more than four, then 16 would probably be a better value. 377 */ 378 #ifndef BROOKTREE_DEF_LATENCY_VALUE 379 #define BROOKTREE_DEF_LATENCY_VALUE 10 380 #endif 381 latency = pci_read_config(dev, PCI_LATENCY_TIMER, 4); 382 latency = (latency >> 8) & 0xff; 383 if ( bootverbose ) { 384 if (latency) 385 printf("brooktree%d: PCI bus latency is", unit); 386 else 387 printf("brooktree%d: PCI bus latency was 0 changing to", 388 unit); 389 } 390 if ( !latency ) { 391 latency = BROOKTREE_DEF_LATENCY_VALUE; 392 pci_write_config(dev, PCI_LATENCY_TIMER, latency<<8, 4); 393 } 394 if ( bootverbose ) { 395 printf(" %d.\n", (int) latency); 396 } 397 398 /* read the pci device id and revision id */ 399 fun = pci_get_devid(dev); 400 rev = pci_get_revid(dev); 401 402 /* call the common attach code */ 403 common_bktr_attach( bktr, unit, fun, rev ); 404 405 make_dev(&bktr_cdevsw, unit, 0, 0, 0444, "bktr%d", unit); 406 make_dev(&bktr_cdevsw, unit+16, 0, 0, 0444, "tuner%d", unit); 407 make_dev(&bktr_cdevsw, unit+32, 0, 0, 0444, "vbi%d", unit); 408 409 return 0; 410 411 fail: 412 return error; 413 414 } 415 416 /* 417 * the detach routine. 418 */ 419 static int 420 bktr_detach( device_t dev ) 421 { 422 struct bktr_softc *bktr = device_get_softc(dev); 423 424 /* Disable the brooktree device */ 425 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED); 426 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED); 427 428 /* FIXME - Free memory for RISC programs, grab buffer, vbi buffers */ 429 430 /* 431 * Deallocate resources. 432 */ 433 bus_teardown_intr(dev, bktr->res_irq, bktr->res_ih); 434 bus_release_resource(dev, SYS_RES_IRQ, 0, bktr->res_irq); 435 bus_release_resource(dev, SYS_RES_MEMORY, PCI_MAP_REG_START, bktr->res_mem); 436 437 return 0; 438 } 439 440 /* 441 * the shutdown routine. 442 */ 443 static int 444 bktr_shutdown( device_t dev ) 445 { 446 struct bktr_softc *bktr = device_get_softc(dev); 447 448 /* Disable the brooktree device */ 449 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED); 450 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED); 451 452 return 0; 453 } 454 455 456 /* 457 * Special Memory Allocation 458 */ 459 vm_offset_t 460 get_bktr_mem( int unit, unsigned size ) 461 { 462 vm_offset_t addr = 0; 463 464 addr = vm_page_alloc_contig(size, 0, 0xffffffff, 1<<24); 465 if (addr == 0) 466 addr = vm_page_alloc_contig(size, 0, 0xffffffff, PAGE_SIZE); 467 if (addr == 0) { 468 printf("bktr%d: Unable to allocate %d bytes of memory.\n", 469 unit, size); 470 } 471 472 return( addr ); 473 } 474 475 476 /*--------------------------------------------------------- 477 ** 478 ** BrookTree 848 character device driver routines 479 ** 480 **--------------------------------------------------------- 481 */ 482 483 #define VIDEO_DEV 0x00 484 #define TUNER_DEV 0x01 485 #define VBI_DEV 0x02 486 487 #define UNIT(x) ((x) & 0x0f) 488 #define FUNCTION(x) (x >> 4) 489 490 /* 491 * 492 */ 493 int 494 bktr_open( dev_t dev, int flags, int fmt, struct proc *p ) 495 { 496 bktr_ptr_t bktr; 497 int unit; 498 int result; 499 500 unit = UNIT( minor(dev) ); 501 502 /* Get the device data */ 503 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 504 if (bktr == NULL) { 505 /* the device is no longer valid/functioning */ 506 return (ENXIO); 507 } 508 509 if (!(bktr->flags & METEOR_INITALIZED)) /* device not found */ 510 return( ENXIO ); 511 512 /* Record that the device is now busy */ 513 device_busy(devclass_get_device(bktr_devclass, unit)); 514 515 516 if (bt848_card != -1) { 517 if ((bt848_card >> 8 == unit ) && 518 ( (bt848_card & 0xff) < Bt848_MAX_CARD )) { 519 if ( bktr->bt848_card != (bt848_card & 0xff) ) { 520 bktr->bt848_card = (bt848_card & 0xff); 521 probeCard(bktr, FALSE, unit); 522 } 523 } 524 } 525 526 if (bt848_tuner != -1) { 527 if ((bt848_tuner >> 8 == unit ) && 528 ( (bt848_tuner & 0xff) < Bt848_MAX_TUNER )) { 529 if ( bktr->bt848_tuner != (bt848_tuner & 0xff) ) { 530 bktr->bt848_tuner = (bt848_tuner & 0xff); 531 probeCard(bktr, FALSE, unit); 532 } 533 } 534 } 535 536 if (bt848_reverse_mute != -1) { 537 if ((bt848_reverse_mute >> 8) == unit ) { 538 bktr->reverse_mute = bt848_reverse_mute & 0xff; 539 } 540 } 541 542 if (bt848_slow_msp_audio != -1) { 543 if ((bt848_slow_msp_audio >> 8) == unit ) { 544 bktr->slow_msp_audio = (bt848_slow_msp_audio & 0xff); 545 } 546 } 547 548 switch ( FUNCTION( minor(dev) ) ) { 549 case VIDEO_DEV: 550 result = video_open( bktr ); 551 break; 552 case TUNER_DEV: 553 result = tuner_open( bktr ); 554 break; 555 case VBI_DEV: 556 result = vbi_open( bktr ); 557 break; 558 default: 559 result = ENXIO; 560 break; 561 } 562 563 /* If there was an error opening the device, undo the busy status */ 564 if (result != 0) 565 device_unbusy(devclass_get_device(bktr_devclass, unit)); 566 return( result ); 567 } 568 569 570 /* 571 * 572 */ 573 int 574 bktr_close( dev_t dev, int flags, int fmt, struct proc *p ) 575 { 576 bktr_ptr_t bktr; 577 int unit; 578 int result; 579 580 unit = UNIT( minor(dev) ); 581 582 /* Get the device data */ 583 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 584 if (bktr == NULL) { 585 /* the device is no longer valid/functioning */ 586 return (ENXIO); 587 } 588 589 switch ( FUNCTION( minor(dev) ) ) { 590 case VIDEO_DEV: 591 result = video_close( bktr ); 592 break; 593 case TUNER_DEV: 594 result = tuner_close( bktr ); 595 break; 596 case VBI_DEV: 597 result = vbi_close( bktr ); 598 break; 599 default: 600 return (ENXIO); 601 break; 602 } 603 604 device_unbusy(devclass_get_device(bktr_devclass, unit)); 605 return( result ); 606 } 607 608 609 /* 610 * 611 */ 612 int 613 bktr_read( dev_t dev, struct uio *uio, int ioflag ) 614 { 615 bktr_ptr_t bktr; 616 int unit; 617 618 unit = UNIT(minor(dev)); 619 620 /* Get the device data */ 621 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 622 if (bktr == NULL) { 623 /* the device is no longer valid/functioning */ 624 return (ENXIO); 625 } 626 627 switch ( FUNCTION( minor(dev) ) ) { 628 case VIDEO_DEV: 629 return( video_read( bktr, unit, dev, uio ) ); 630 case VBI_DEV: 631 return( vbi_read( bktr, uio, ioflag ) ); 632 } 633 return( ENXIO ); 634 } 635 636 637 /* 638 * 639 */ 640 int 641 bktr_write( dev_t dev, struct uio *uio, int ioflag ) 642 { 643 return( EINVAL ); /* XXX or ENXIO ? */ 644 } 645 646 647 /* 648 * 649 */ 650 int 651 bktr_ioctl( dev_t dev, ioctl_cmd_t cmd, caddr_t arg, int flag, struct proc* pr ) 652 { 653 bktr_ptr_t bktr; 654 int unit; 655 656 unit = UNIT(minor(dev)); 657 658 /* Get the device data */ 659 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 660 if (bktr == NULL) { 661 /* the device is no longer valid/functioning */ 662 return (ENXIO); 663 } 664 665 if (bktr->bigbuf == 0) /* no frame buffer allocated (ioctl failed) */ 666 return( ENOMEM ); 667 668 switch ( FUNCTION( minor(dev) ) ) { 669 case VIDEO_DEV: 670 return( video_ioctl( bktr, unit, cmd, arg, pr ) ); 671 case TUNER_DEV: 672 return( tuner_ioctl( bktr, unit, cmd, arg, pr ) ); 673 } 674 675 return( ENXIO ); 676 } 677 678 679 /* 680 * 681 */ 682 int 683 bktr_mmap( dev_t dev, vm_offset_t offset, int nprot ) 684 { 685 int unit; 686 bktr_ptr_t bktr; 687 688 unit = UNIT(minor(dev)); 689 690 if (FUNCTION(minor(dev)) > 0) /* only allow mmap on /dev/bktr[n] */ 691 return( -1 ); 692 693 /* Get the device data */ 694 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 695 if (bktr == NULL) { 696 /* the device is no longer valid/functioning */ 697 return (ENXIO); 698 } 699 700 if (nprot & PROT_EXEC) 701 return( -1 ); 702 703 if (offset < 0) 704 return( -1 ); 705 706 if (offset >= bktr->alloc_pages * PAGE_SIZE) 707 return( -1 ); 708 709 return( atop(vtophys(bktr->bigbuf) + offset) ); 710 } 711 712 int bktr_poll( dev_t dev, int events, struct proc *p) 713 { 714 int unit; 715 bktr_ptr_t bktr; 716 int revents = 0; 717 DECLARE_INTR_MASK(s); 718 719 unit = UNIT(minor(dev)); 720 721 /* Get the device data */ 722 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 723 if (bktr == NULL) { 724 /* the device is no longer valid/functioning */ 725 return (ENXIO); 726 } 727 728 DISABLE_INTR(s); 729 730 if (events & (POLLIN | POLLRDNORM)) { 731 732 switch ( FUNCTION( minor(dev) ) ) { 733 case VBI_DEV: 734 if(bktr->vbisize == 0) 735 selrecord(p, &bktr->vbi_select); 736 else 737 revents |= events & (POLLIN | POLLRDNORM); 738 break; 739 } 740 } 741 742 ENABLE_INTR(s); 743 744 return (revents); 745 } 746 747 #endif /* FreeBSD 4.x specific kernel interface routines */ 748 749 /**********************************/ 750 /* *** FreeBSD 2.2.x and 3.x *** */ 751 /**********************************/ 752 753 #if ((__FreeBSD__ == 2) || (__FreeBSD__ == 3)) 754 755 static bktr_reg_t brooktree[ NBKTR ]; 756 757 static const char* bktr_probe( pcici_t tag, pcidi_t type ); 758 static void bktr_attach( pcici_t tag, int unit ); 759 static void bktr_intr(void *arg) { common_bktr_intr(arg); } 760 761 static u_long bktr_count; 762 763 static struct pci_device bktr_device = { 764 "bktr", 765 bktr_probe, 766 bktr_attach, 767 &bktr_count 768 }; 769 770 DATA_SET (pcidevice_set, bktr_device); 771 772 static d_open_t bktr_open; 773 static d_close_t bktr_close; 774 static d_read_t bktr_read; 775 static d_write_t bktr_write; 776 static d_ioctl_t bktr_ioctl; 777 static d_mmap_t bktr_mmap; 778 static d_poll_t bktr_poll; 779 780 #define CDEV_MAJOR 92 781 static struct cdevsw bktr_cdevsw = 782 { 783 bktr_open, bktr_close, bktr_read, bktr_write, 784 bktr_ioctl, nostop, nullreset, nodevtotty, 785 bktr_poll, bktr_mmap, NULL, "bktr", 786 NULL, -1 787 }; 788 789 static int bktr_devsw_installed; 790 791 static void 792 bktr_drvinit( void *unused ) 793 { 794 dev_t dev; 795 796 if ( ! bktr_devsw_installed ) { 797 dev = makedev(CDEV_MAJOR, 0); 798 cdevsw_add(&dev,&bktr_cdevsw, NULL); 799 bktr_devsw_installed = 1; 800 } 801 } 802 803 SYSINIT(bktrdev,SI_SUB_DRIVERS,SI_ORDER_MIDDLE+CDEV_MAJOR,bktr_drvinit,NULL) 804 805 /* 806 * the boot time probe routine. 807 */ 808 static const char* 809 bktr_probe( pcici_t tag, pcidi_t type ) 810 { 811 unsigned int rev = pci_conf_read( tag, PCIR_REVID) & 0x000000ff; 812 813 switch (type) { 814 case BROOKTREE_848_PCI_ID: 815 if (rev == 0x12) return("BrookTree 848A"); 816 else return("BrookTree 848"); 817 case BROOKTREE_849_PCI_ID: 818 return("BrookTree 849A"); 819 case BROOKTREE_878_PCI_ID: 820 return("BrookTree 878"); 821 case BROOKTREE_879_PCI_ID: 822 return("BrookTree 879"); 823 }; 824 825 return ((char *)0); 826 } 827 828 /* 829 * the attach routine. 830 */ 831 static void 832 bktr_attach( pcici_t tag, int unit ) 833 { 834 bktr_ptr_t bktr; 835 u_long latency; 836 u_long fun; 837 unsigned int rev; 838 unsigned long base; 839 #ifdef BROOKTREE_IRQ 840 u_long old_irq, new_irq; 841 #endif 842 843 bktr = &brooktree[unit]; 844 845 if (unit >= NBKTR) { 846 printf("brooktree%d: attach: only %d units configured.\n", 847 unit, NBKTR); 848 printf("brooktree%d: attach: invalid unit number.\n", unit); 849 return; 850 } 851 852 /* Enable Memory Mapping */ 853 fun = pci_conf_read(tag, PCI_COMMAND_STATUS_REG); 854 pci_conf_write(tag, PCI_COMMAND_STATUS_REG, fun | 2); 855 856 /* Enable Bus Mastering */ 857 fun = pci_conf_read(tag, PCI_COMMAND_STATUS_REG); 858 pci_conf_write(tag, PCI_COMMAND_STATUS_REG, fun | 4); 859 860 bktr->tag = tag; 861 862 863 /* 864 * Map control/status registers 865 */ 866 pci_map_mem( tag, PCI_MAP_REG_START, (vm_offset_t *) &base, 867 &bktr->phys_base ); 868 #if (__FreeBSD_version >= 300000) 869 bktr->memt = I386_BUS_SPACE_MEM; /* XXX should use proper bus space */ 870 bktr->memh = (bus_space_handle_t)base; /* XXX functions here */ 871 #endif 872 873 /* 874 * Disable the brooktree device 875 */ 876 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED); 877 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED); 878 879 #ifdef BROOKTREE_IRQ /* from the configuration file */ 880 old_irq = pci_conf_read(tag, PCI_INTERRUPT_REG); 881 pci_conf_write(tag, PCI_INTERRUPT_REG, BROOKTREE_IRQ); 882 new_irq = pci_conf_read(tag, PCI_INTERRUPT_REG); 883 printf("bktr%d: attach: irq changed from %d to %d\n", 884 unit, (old_irq & 0xff), (new_irq & 0xff)); 885 #endif 886 887 /* 888 * setup the interrupt handling routine 889 */ 890 pci_map_int(tag, bktr_intr, (void*) bktr, &tty_imask); 891 892 893 /* Update the Device Control Register */ 894 /* on Bt878 and Bt879 cards */ 895 fun = pci_conf_read(tag, 0x40); 896 fun = fun | 1; /* Enable writes to the sub-system vendor ID */ 897 898 #if defined( BKTR_430_FX_MODE ) 899 if (bootverbose) printf("Using 430 FX chipset compatibilty mode\n"); 900 fun = fun | 2; /* Enable Intel 430 FX compatibility mode */ 901 #endif 902 903 #if defined( BKTR_SIS_VIA_MODE ) 904 if (bootverbose) printf("Using SiS/VIA chipset compatibilty mode\n"); 905 fun = fun | 4; /* Enable SiS/VIA compatibility mode (usefull for 906 OPTi chipset motherboards too */ 907 #endif 908 pci_conf_write(tag, 0x40, fun); 909 910 911 /* XXX call bt848_i2c dependent attach() routine */ 912 #if (NSMBUS > 0) 913 if (bt848_i2c_attach(unit, bktr, &bktr->i2c_sc)) 914 printf("bktr%d: i2c_attach: can't attach\n", unit); 915 #endif 916 917 918 /* 919 * PCI latency timer. 32 is a good value for 4 bus mastering slots, if 920 * you have more than four, then 16 would probably be a better value. 921 */ 922 #ifndef BROOKTREE_DEF_LATENCY_VALUE 923 #define BROOKTREE_DEF_LATENCY_VALUE 10 924 #endif 925 latency = pci_conf_read(tag, PCI_LATENCY_TIMER); 926 latency = (latency >> 8) & 0xff; 927 if ( bootverbose ) { 928 if (latency) 929 printf("brooktree%d: PCI bus latency is", unit); 930 else 931 printf("brooktree%d: PCI bus latency was 0 changing to", 932 unit); 933 } 934 if ( !latency ) { 935 latency = BROOKTREE_DEF_LATENCY_VALUE; 936 pci_conf_write(tag, PCI_LATENCY_TIMER, latency<<8); 937 } 938 if ( bootverbose ) { 939 printf(" %d.\n", (int) latency); 940 } 941 942 943 /* read the pci device id and revision id */ 944 fun = pci_conf_read(tag, PCI_ID_REG); 945 rev = pci_conf_read(tag, PCIR_REVID) & 0x000000ff; 946 947 /* call the common attach code */ 948 common_bktr_attach( bktr, unit, fun, rev ); 949 950 #ifdef DEVFS 951 /* XXX This just throw away the token, which should probably be fixed when 952 DEVFS is finally made really operational. */ 953 devfs_add_devswf(&bktr_cdevsw, unit, DV_CHR, 0, 0, 0444, "bktr%d", unit); 954 devfs_add_devswf(&bktr_cdevsw, unit+16, DV_CHR, 0, 0, 0444, "tuner%d", unit); 955 devfs_add_devswf(&bktr_cdevsw, unit+32, DV_CHR, 0, 0, 0444, "vbi%d", unit); 956 #endif /* DEVFS */ 957 958 } 959 960 961 /* 962 * Special Memory Allocation 963 */ 964 vm_offset_t 965 get_bktr_mem( int unit, unsigned size ) 966 { 967 vm_offset_t addr = 0; 968 969 addr = vm_page_alloc_contig(size, 0x100000, 0xffffffff, 1<<24); 970 if (addr == 0) 971 addr = vm_page_alloc_contig(size, 0x100000, 0xffffffff, 972 PAGE_SIZE); 973 if (addr == 0) { 974 printf("bktr%d: Unable to allocate %d bytes of memory.\n", 975 unit, size); 976 } 977 978 return( addr ); 979 } 980 981 /*--------------------------------------------------------- 982 ** 983 ** BrookTree 848 character device driver routines 984 ** 985 **--------------------------------------------------------- 986 */ 987 988 989 #define VIDEO_DEV 0x00 990 #define TUNER_DEV 0x01 991 #define VBI_DEV 0x02 992 993 #define UNIT(x) ((x) & 0x0f) 994 #define FUNCTION(x) ((x >> 4) & 0x0f) 995 996 997 /* 998 * 999 */ 1000 int 1001 bktr_open( dev_t dev, int flags, int fmt, struct proc *p ) 1002 { 1003 bktr_ptr_t bktr; 1004 int unit; 1005 1006 unit = UNIT( minor(dev) ); 1007 if (unit >= NBKTR) /* unit out of range */ 1008 return( ENXIO ); 1009 1010 bktr = &(brooktree[ unit ]); 1011 1012 if (!(bktr->flags & METEOR_INITALIZED)) /* device not found */ 1013 return( ENXIO ); 1014 1015 1016 if (bt848_card != -1) { 1017 if ((bt848_card >> 8 == unit ) && 1018 ( (bt848_card & 0xff) < Bt848_MAX_CARD )) { 1019 if ( bktr->bt848_card != (bt848_card & 0xff) ) { 1020 bktr->bt848_card = (bt848_card & 0xff); 1021 probeCard(bktr, FALSE, unit); 1022 } 1023 } 1024 } 1025 1026 if (bt848_tuner != -1) { 1027 if ((bt848_tuner >> 8 == unit ) && 1028 ( (bt848_tuner & 0xff) < Bt848_MAX_TUNER )) { 1029 if ( bktr->bt848_tuner != (bt848_tuner & 0xff) ) { 1030 bktr->bt848_tuner = (bt848_tuner & 0xff); 1031 probeCard(bktr, FALSE, unit); 1032 } 1033 } 1034 } 1035 1036 if (bt848_reverse_mute != -1) { 1037 if ((bt848_reverse_mute >> 8) == unit ) { 1038 bktr->reverse_mute = bt848_reverse_mute & 0xff; 1039 } 1040 } 1041 1042 if (bt848_slow_msp_audio != -1) { 1043 if ((bt848_slow_msp_audio >> 8) == unit ) { 1044 bktr->slow_msp_audio = (bt848_slow_msp_audio & 0xff); 1045 } 1046 } 1047 1048 switch ( FUNCTION( minor(dev) ) ) { 1049 case VIDEO_DEV: 1050 return( video_open( bktr ) ); 1051 case TUNER_DEV: 1052 return( tuner_open( bktr ) ); 1053 case VBI_DEV: 1054 return( vbi_open( bktr ) ); 1055 } 1056 return( ENXIO ); 1057 } 1058 1059 1060 /* 1061 * 1062 */ 1063 int 1064 bktr_close( dev_t dev, int flags, int fmt, struct proc *p ) 1065 { 1066 bktr_ptr_t bktr; 1067 int unit; 1068 1069 unit = UNIT( minor(dev) ); 1070 if (unit >= NBKTR) /* unit out of range */ 1071 return( ENXIO ); 1072 1073 bktr = &(brooktree[ unit ]); 1074 1075 switch ( FUNCTION( minor(dev) ) ) { 1076 case VIDEO_DEV: 1077 return( video_close( bktr ) ); 1078 case TUNER_DEV: 1079 return( tuner_close( bktr ) ); 1080 case VBI_DEV: 1081 return( vbi_close( bktr ) ); 1082 } 1083 1084 return( ENXIO ); 1085 } 1086 1087 /* 1088 * 1089 */ 1090 int 1091 bktr_read( dev_t dev, struct uio *uio, int ioflag ) 1092 { 1093 bktr_ptr_t bktr; 1094 int unit; 1095 1096 unit = UNIT(minor(dev)); 1097 if (unit >= NBKTR) /* unit out of range */ 1098 return( ENXIO ); 1099 1100 bktr = &(brooktree[unit]); 1101 1102 switch ( FUNCTION( minor(dev) ) ) { 1103 case VIDEO_DEV: 1104 return( video_read( bktr, unit, dev, uio ) ); 1105 case VBI_DEV: 1106 return( vbi_read( bktr, uio, ioflag ) ); 1107 } 1108 return( ENXIO ); 1109 } 1110 1111 1112 /* 1113 * 1114 */ 1115 int 1116 bktr_write( dev_t dev, struct uio *uio, int ioflag ) 1117 { 1118 return( EINVAL ); /* XXX or ENXIO ? */ 1119 } 1120 1121 /* 1122 * 1123 */ 1124 int 1125 bktr_ioctl( dev_t dev, ioctl_cmd_t cmd, caddr_t arg, int flag, struct proc* pr ) 1126 { 1127 bktr_ptr_t bktr; 1128 int unit; 1129 1130 unit = UNIT(minor(dev)); 1131 if (unit >= NBKTR) /* unit out of range */ 1132 return( ENXIO ); 1133 1134 bktr = &(brooktree[ unit ]); 1135 1136 if (bktr->bigbuf == 0) /* no frame buffer allocated (ioctl failed) */ 1137 return( ENOMEM ); 1138 1139 switch ( FUNCTION( minor(dev) ) ) { 1140 case VIDEO_DEV: 1141 return( video_ioctl( bktr, unit, cmd, arg, pr ) ); 1142 case TUNER_DEV: 1143 return( tuner_ioctl( bktr, unit, cmd, arg, pr ) ); 1144 } 1145 1146 return( ENXIO ); 1147 } 1148 1149 /* 1150 * bktr_mmap. 1151 * Note: 2.2.5/2.2.6/2.2.7/3.0 users must manually 1152 * edit the line below and change "vm_offset_t" to "int" 1153 */ 1154 int bktr_mmap( dev_t dev, vm_offset_t offset, int nprot ) 1155 1156 { 1157 int unit; 1158 bktr_ptr_t bktr; 1159 1160 unit = UNIT(minor(dev)); 1161 1162 if (unit >= NBKTR || FUNCTION(minor(dev)) > 0) 1163 return( -1 ); 1164 1165 bktr = &(brooktree[ unit ]); 1166 1167 if (nprot & PROT_EXEC) 1168 return( -1 ); 1169 1170 if (offset < 0) 1171 return( -1 ); 1172 1173 if (offset >= bktr->alloc_pages * PAGE_SIZE) 1174 return( -1 ); 1175 1176 return( i386_btop(vtophys(bktr->bigbuf) + offset) ); 1177 } 1178 1179 int bktr_poll( dev_t dev, int events, struct proc *p) 1180 { 1181 int unit; 1182 bktr_ptr_t bktr; 1183 int revents = 0; 1184 1185 unit = UNIT(minor(dev)); 1186 1187 if (unit >= NBKTR) 1188 return( -1 ); 1189 1190 bktr = &(brooktree[ unit ]); 1191 1192 disable_intr(); 1193 1194 if (events & (POLLIN | POLLRDNORM)) { 1195 1196 switch ( FUNCTION( minor(dev) ) ) { 1197 case VBI_DEV: 1198 if(bktr->vbisize == 0) 1199 selrecord(p, &bktr->vbi_select); 1200 else 1201 revents |= events & (POLLIN | POLLRDNORM); 1202 break; 1203 } 1204 } 1205 1206 enable_intr(); 1207 1208 return (revents); 1209 } 1210 1211 1212 #endif /* FreeBSD 2.2.x and 3.x specific kernel interface routines */ 1213 1214 1215 /*****************/ 1216 /* *** BSDI *** */ 1217 /*****************/ 1218 1219 #if defined(__bsdi__) 1220 #endif /* __bsdi__ BSDI specific kernel interface routines */ 1221 1222 1223 /*****************************/ 1224 /* *** OpenBSD / NetBSD *** */ 1225 /*****************************/ 1226 #if defined(__NetBSD__) || defined(__OpenBSD__) 1227 1228 #define IPL_VIDEO IPL_BIO /* XXX */ 1229 1230 static int bktr_intr(void *arg) { return common_bktr_intr(arg); } 1231 1232 #define bktr_open bktropen 1233 #define bktr_close bktrclose 1234 #define bktr_read bktrread 1235 #define bktr_write bktrwrite 1236 #define bktr_ioctl bktrioctl 1237 #define bktr_mmap bktrmmap 1238 1239 int bktr_open __P((dev_t, int, int, struct proc *)); 1240 int bktr_close __P((dev_t, int, int, struct proc *)); 1241 int bktr_read __P((dev_t, struct uio *, int)); 1242 int bktr_write __P((dev_t, struct uio *, int)); 1243 int bktr_ioctl __P((dev_t, ioctl_cmd_t, caddr_t, int, struct proc*)); 1244 int bktr_mmap __P((dev_t, int, int)); 1245 1246 vm_offset_t vm_page_alloc_contig(vm_offset_t, vm_offset_t, 1247 vm_offset_t, vm_offset_t); 1248 1249 #if defined(__OpenBSD__) 1250 static int bktr_probe __P((struct device *, void *, void *)); 1251 #else 1252 static int bktr_probe __P((struct device *, struct cfdata *, void *)); 1253 #endif 1254 static void bktr_attach __P((struct device *, struct device *, void *)); 1255 1256 struct cfattach bktr_ca = { 1257 sizeof(struct bktr_softc), bktr_probe, bktr_attach 1258 }; 1259 1260 #if defined(__NetBSD__) 1261 extern struct cfdriver bktr_cd; 1262 #else 1263 struct cfdriver bktr_cd = { 1264 NULL, "bktr", DV_DULL 1265 }; 1266 #endif 1267 1268 int 1269 bktr_probe(parent, match, aux) 1270 struct device *parent; 1271 #if defined(__OpenBSD__) 1272 void *match; 1273 #else 1274 struct cfdata *match; 1275 #endif 1276 void *aux; 1277 { 1278 struct pci_attach_args *pa = aux; 1279 1280 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_BROOKTREE && 1281 (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT848 || 1282 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT849 || 1283 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT878 || 1284 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT879)) 1285 return 1; 1286 1287 return 0; 1288 } 1289 1290 1291 /* 1292 * the attach routine. 1293 */ 1294 static void 1295 bktr_attach(struct device *parent, struct device *self, void *aux) 1296 { 1297 bktr_ptr_t bktr; 1298 u_long latency; 1299 u_long fun; 1300 unsigned int rev; 1301 1302 #if defined(__OpenBSD__) 1303 struct pci_attach_args *pa = aux; 1304 pci_chipset_tag_t pc = pa->pa_pc; 1305 1306 pci_intr_handle_t ih; 1307 const char *intrstr; 1308 int retval; 1309 int unit; 1310 1311 bktr = (bktr_ptr_t)self; 1312 unit = bktr->bktr_dev.dv_unit; 1313 1314 bktr->pc = pa->pa_pc; 1315 bktr->tag = pa->pa_tag; 1316 bktr->dmat = pa->pa_dmat; 1317 1318 /* 1319 * map memory 1320 */ 1321 bktr->memt = pa->pa_memt; 1322 retval = pci_mem_find(pc, pa->pa_tag, PCI_MAPREG_START, 1323 &bktr->phys_base, &bktr->obmemsz, NULL); 1324 if (!retval) 1325 retval = bus_space_map(pa->pa_memt, bktr->phys_base, 1326 bktr->obmemsz, 0, &bktr->memh); 1327 if (retval) { 1328 printf(": couldn't map memory\n"); 1329 return; 1330 } 1331 1332 1333 /* 1334 * map interrupt 1335 */ 1336 if (pci_intr_map(pa->pa_pc, pa->pa_intrtag, pa->pa_intrpin, 1337 pa->pa_intrline, &ih)) { 1338 printf(": couldn't map interrupt\n"); 1339 return; 1340 } 1341 intrstr = pci_intr_string(pa->pa_pc, ih); 1342 1343 bktr->ih = pci_intr_establish(pa->pa_pc, ih, IPL_VIDEO, 1344 bktr_intr, bktr, bktr->bktr_dev.dv_xname); 1345 if (bktr->ih == NULL) { 1346 printf(": couldn't establish interrupt"); 1347 if (intrstr != NULL) 1348 printf(" at %s", intrstr); 1349 printf("\n"); 1350 return; 1351 } 1352 1353 if (intrstr != NULL) 1354 printf(": %s\n", intrstr); 1355 #endif /* __OpenBSD__ */ 1356 1357 #if defined(__NetBSD__) 1358 struct pci_attach_args *pa = aux; 1359 pci_intr_handle_t ih; 1360 const char *intrstr; 1361 int retval; 1362 int unit; 1363 1364 bktr = (bktr_ptr_t)self; 1365 unit = bktr->bktr_dev.dv_unit; 1366 bktr->dmat = pa->pa_dmat; 1367 1368 printf("\n"); 1369 1370 /* 1371 * map memory 1372 */ 1373 retval = pci_mapreg_map(pa, PCI_MAPREG_START, 1374 PCI_MAPREG_TYPE_MEM 1375 | PCI_MAPREG_MEM_TYPE_32BIT, 0, 1376 &bktr->memt, &bktr->memh, NULL, 1377 &bktr->obmemsz); 1378 DPR(("pci_mapreg_map: memt %x, memh %x, size %x\n", 1379 bktr->memt, (u_int)bktr->memh, (u_int)bktr->obmemsz)); 1380 if (retval) { 1381 printf("%s: couldn't map memory\n", 1382 bktr->bktr_dev.dv_xname); 1383 return; 1384 } 1385 1386 /* 1387 * Disable the brooktree device 1388 */ 1389 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED); 1390 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED); 1391 1392 /* 1393 * map interrupt 1394 */ 1395 if (pci_intr_map(pa->pa_pc, pa->pa_intrtag, pa->pa_intrpin, 1396 pa->pa_intrline, &ih)) { 1397 printf("%s: couldn't map interrupt\n", 1398 bktr->bktr_dev.dv_xname); 1399 return; 1400 } 1401 intrstr = pci_intr_string(pa->pa_pc, ih); 1402 bktr->ih = pci_intr_establish(pa->pa_pc, ih, IPL_VIDEO, 1403 bktr_intr, bktr); 1404 if (bktr->ih == NULL) { 1405 printf("%s: couldn't establish interrupt", 1406 bktr->bktr_dev.dv_xname); 1407 if (intrstr != NULL) 1408 printf(" at %s", intrstr); 1409 printf("\n"); 1410 return; 1411 } 1412 if (intrstr != NULL) 1413 printf("%s: interrupting at %s\n", bktr->bktr_dev.dv_xname, 1414 intrstr); 1415 #endif /* __NetBSD__ */ 1416 1417 /* 1418 * PCI latency timer. 32 is a good value for 4 bus mastering slots, if 1419 * you have more than four, then 16 would probably be a better value. 1420 */ 1421 #ifndef BROOKTREE_DEF_LATENCY_VALUE 1422 #define BROOKTREE_DEF_LATENCY_VALUE 10 1423 #endif 1424 latency = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_LATENCY_TIMER); 1425 latency = (latency >> 8) & 0xff; 1426 1427 if (!latency) { 1428 if (bootverbose) { 1429 printf("%s: PCI bus latency was 0 changing to %d", 1430 bktr->bktr_dev.dv_xname, 1431 BROOKTREE_DEF_LATENCY_VALUE); 1432 } 1433 latency = BROOKTREE_DEF_LATENCY_VALUE; 1434 pci_conf_write(pa->pa_pc, pa->pa_tag, 1435 PCI_LATENCY_TIMER, latency<<8); 1436 } 1437 1438 1439 /* Enabled Bus Master 1440 XXX: check if all old DMA is stopped first (e.g. after warm 1441 boot) */ 1442 fun = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); 1443 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, 1444 fun | PCI_COMMAND_MASTER_ENABLE); 1445 1446 /* read the pci id and determine the card type */ 1447 fun = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_ID_REG); 1448 rev = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_CLASS_REG) & 0x000000ff; 1449 1450 common_bktr_attach(bktr, unit, fun, rev); 1451 } 1452 1453 1454 /* 1455 * Special Memory Allocation 1456 */ 1457 vm_offset_t 1458 get_bktr_mem(bktr, dmapp, size) 1459 bktr_ptr_t bktr; 1460 bus_dmamap_t *dmapp; 1461 unsigned int size; 1462 { 1463 bus_dma_tag_t dmat = bktr->dmat; 1464 bus_dma_segment_t seg; 1465 bus_size_t align; 1466 int rseg; 1467 caddr_t kva; 1468 1469 /* 1470 * Allocate a DMA area 1471 */ 1472 align = 1 << 24; 1473 if (bus_dmamem_alloc(dmat, size, align, 0, &seg, 1, 1474 &rseg, BUS_DMA_NOWAIT)) { 1475 align = PAGE_SIZE; 1476 if (bus_dmamem_alloc(dmat, size, align, 0, &seg, 1, 1477 &rseg, BUS_DMA_NOWAIT)) { 1478 printf("bktr%d: Unable to dmamem_alloc of %d bytes\n", 1479 bktr->bktr_dev.dv_unit, size); 1480 return 0; 1481 } 1482 } 1483 if (bus_dmamem_map(dmat, &seg, rseg, size, 1484 &kva, BUS_DMA_NOWAIT|BUS_DMA_COHERENT)) { 1485 printf("bktr%d: Unable to dmamem_map of %d bytes\n", 1486 bktr->bktr_dev.dv_unit, size); 1487 bus_dmamem_free(dmat, &seg, rseg); 1488 return 0; 1489 } 1490 #ifdef __OpenBSD__ 1491 bktr->dm_mapsize = size; 1492 #endif 1493 /* 1494 * Create and locd the DMA map for the DMA area 1495 */ 1496 if (bus_dmamap_create(dmat, size, 1, size, 0, BUS_DMA_NOWAIT, dmapp)) { 1497 printf("bktr%d: Unable to dmamap_create of %d bytes\n", 1498 bktr->bktr_dev.dv_unit, size); 1499 bus_dmamem_unmap(dmat, kva, size); 1500 bus_dmamem_free(dmat, &seg, rseg); 1501 return 0; 1502 } 1503 if (bus_dmamap_load(dmat, *dmapp, kva, size, NULL, BUS_DMA_NOWAIT)) { 1504 printf("bktr%d: Unable to dmamap_load of %d bytes\n", 1505 bktr->bktr_dev.dv_unit, size); 1506 bus_dmamem_unmap(dmat, kva, size); 1507 bus_dmamem_free(dmat, &seg, rseg); 1508 bus_dmamap_destroy(dmat, *dmapp); 1509 return 0; 1510 } 1511 return (vm_offset_t)kva; 1512 } 1513 1514 void 1515 free_bktr_mem(bktr, dmap, kva) 1516 bktr_ptr_t bktr; 1517 bus_dmamap_t dmap; 1518 vm_offset_t kva; 1519 { 1520 bus_dma_tag_t dmat = bktr->dmat; 1521 1522 #ifdef __NetBSD__ 1523 bus_dmamem_unmap(dmat, (caddr_t)kva, dmap->dm_mapsize); 1524 #else 1525 bus_dmamem_unmap(dmat, (caddr_t)kva, bktr->dm_mapsize); 1526 #endif 1527 bus_dmamem_free(dmat, dmap->dm_segs, 1); 1528 bus_dmamap_destroy(dmat, dmap); 1529 } 1530 1531 1532 /*--------------------------------------------------------- 1533 ** 1534 ** BrookTree 848 character device driver routines 1535 ** 1536 **--------------------------------------------------------- 1537 */ 1538 1539 1540 #define VIDEO_DEV 0x00 1541 #define TUNER_DEV 0x01 1542 #define VBI_DEV 0x02 1543 1544 #define UNIT(x) (minor((x) & 0x0f)) 1545 #define FUNCTION(x) (minor((x >> 4) & 0x0f)) 1546 1547 /* 1548 * 1549 */ 1550 int 1551 bktr_open(dev_t dev, int flags, int fmt, struct proc *p) 1552 { 1553 bktr_ptr_t bktr; 1554 int unit; 1555 1556 unit = UNIT(dev); 1557 1558 /* unit out of range */ 1559 if ((unit > bktr_cd.cd_ndevs) || (bktr_cd.cd_devs[unit] == NULL)) 1560 return(ENXIO); 1561 1562 bktr = bktr_cd.cd_devs[unit]; 1563 1564 if (!(bktr->flags & METEOR_INITALIZED)) /* device not found */ 1565 return(ENXIO); 1566 1567 switch (FUNCTION(dev)) { 1568 case VIDEO_DEV: 1569 return(video_open(bktr)); 1570 case TUNER_DEV: 1571 return(tuner_open(bktr)); 1572 case VBI_DEV: 1573 return(vbi_open(bktr)); 1574 } 1575 1576 return(ENXIO); 1577 } 1578 1579 1580 /* 1581 * 1582 */ 1583 int 1584 bktr_close(dev_t dev, int flags, int fmt, struct proc *p) 1585 { 1586 bktr_ptr_t bktr; 1587 int unit; 1588 1589 unit = UNIT(dev); 1590 1591 bktr = bktr_cd.cd_devs[unit]; 1592 1593 switch (FUNCTION(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(dev); 1615 1616 bktr = bktr_cd.cd_devs[unit]; 1617 1618 switch (FUNCTION(dev)) { 1619 case VIDEO_DEV: 1620 return(video_read(bktr, unit, dev, uio)); 1621 case VBI_DEV: 1622 return(vbi_read(bktr, uio, ioflag)); 1623 } 1624 1625 return(ENXIO); 1626 } 1627 1628 1629 /* 1630 * 1631 */ 1632 int 1633 bktr_write(dev_t dev, struct uio *uio, int ioflag) 1634 { 1635 /* operation not supported */ 1636 return(EOPNOTSUPP); 1637 } 1638 1639 /* 1640 * 1641 */ 1642 int 1643 bktr_ioctl(dev_t dev, ioctl_cmd_t cmd, caddr_t arg, int flag, struct proc* pr) 1644 { 1645 bktr_ptr_t bktr; 1646 int unit; 1647 1648 unit = UNIT(dev); 1649 1650 bktr = bktr_cd.cd_devs[unit]; 1651 1652 if (bktr->bigbuf == 0) /* no frame buffer allocated (ioctl failed) */ 1653 return(ENOMEM); 1654 1655 switch (FUNCTION(dev)) { 1656 case VIDEO_DEV: 1657 return(video_ioctl(bktr, unit, cmd, arg, pr)); 1658 case TUNER_DEV: 1659 return(tuner_ioctl(bktr, unit, cmd, arg, pr)); 1660 } 1661 1662 return(ENXIO); 1663 } 1664 1665 /* 1666 * 1667 */ 1668 int 1669 bktr_mmap(dev_t dev, int offset, int nprot) 1670 { 1671 int unit; 1672 bktr_ptr_t bktr; 1673 1674 unit = UNIT(dev); 1675 1676 if (FUNCTION(dev) > 0) /* only allow mmap on /dev/bktr[n] */ 1677 return(-1); 1678 1679 bktr = bktr_cd.cd_devs[unit]; 1680 1681 if ((vaddr_t)offset < 0) 1682 return(-1); 1683 1684 if ((vaddr_t)offset >= bktr->alloc_pages * PAGE_SIZE) 1685 return(-1); 1686 1687 #ifdef __NetBSD__ 1688 return (bus_dmamem_mmap(bktr->dmat, bktr->dm_mem->dm_segs, 1, 1689 (vaddr_t)offset, nprot, BUS_DMA_WAITOK)); 1690 #else 1691 return(i386_btop(vtophys(bktr->bigbuf) + offset)); 1692 #endif 1693 } 1694 1695 #endif /* __NetBSD__ || __OpenBSD__ */ 1696
Indexes created Sat Nov 01 05:10:12 GMT 2025