bktr_os.c revision 1.5.4.1
1 /* $NetBSD: bktr_os.c,v 1.5.4.1 2000/06/30 16:27:51 simonb 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 vm_offset_t vm_page_alloc_contig(vm_offset_t, vm_offset_t, 1240 vm_offset_t, vm_offset_t); 1241 1242 #if defined(__OpenBSD__) 1243 static int bktr_probe __P((struct device *, void *, void *)); 1244 #else 1245 static int bktr_probe __P((struct device *, struct cfdata *, void *)); 1246 #endif 1247 static void bktr_attach __P((struct device *, struct device *, void *)); 1248 1249 struct cfattach bktr_ca = { 1250 sizeof(struct bktr_softc), bktr_probe, bktr_attach 1251 }; 1252 1253 #if defined(__NetBSD__) 1254 extern struct cfdriver bktr_cd; 1255 #else 1256 struct cfdriver bktr_cd = { 1257 NULL, "bktr", DV_DULL 1258 }; 1259 #endif 1260 1261 int 1262 bktr_probe(parent, match, aux) 1263 struct device *parent; 1264 #if defined(__OpenBSD__) 1265 void *match; 1266 #else 1267 struct cfdata *match; 1268 #endif 1269 void *aux; 1270 { 1271 struct pci_attach_args *pa = aux; 1272 1273 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_BROOKTREE && 1274 (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT848 || 1275 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT849 || 1276 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT878 || 1277 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT879)) 1278 return 1; 1279 1280 return 0; 1281 } 1282 1283 1284 /* 1285 * the attach routine. 1286 */ 1287 static void 1288 bktr_attach(struct device *parent, struct device *self, void *aux) 1289 { 1290 bktr_ptr_t bktr; 1291 u_long latency; 1292 u_long fun; 1293 unsigned int rev; 1294 1295 #if defined(__OpenBSD__) 1296 struct pci_attach_args *pa = aux; 1297 pci_chipset_tag_t pc = pa->pa_pc; 1298 1299 pci_intr_handle_t ih; 1300 const char *intrstr; 1301 int retval; 1302 int unit; 1303 1304 bktr = (bktr_ptr_t)self; 1305 unit = bktr->bktr_dev.dv_unit; 1306 1307 bktr->pc = pa->pa_pc; 1308 bktr->tag = pa->pa_tag; 1309 bktr->dmat = pa->pa_dmat; 1310 1311 /* 1312 * map memory 1313 */ 1314 bktr->memt = pa->pa_memt; 1315 retval = pci_mem_find(pc, pa->pa_tag, PCI_MAPREG_START, 1316 &bktr->phys_base, &bktr->obmemsz, NULL); 1317 if (!retval) 1318 retval = bus_space_map(pa->pa_memt, bktr->phys_base, 1319 bktr->obmemsz, 0, &bktr->memh); 1320 if (retval) { 1321 printf(": couldn't map memory\n"); 1322 return; 1323 } 1324 1325 1326 /* 1327 * map interrupt 1328 */ 1329 if (pci_intr_map(pa->pa_pc, pa->pa_intrtag, pa->pa_intrpin, 1330 pa->pa_intrline, &ih)) { 1331 printf(": couldn't map interrupt\n"); 1332 return; 1333 } 1334 intrstr = pci_intr_string(pa->pa_pc, ih); 1335 1336 bktr->ih = pci_intr_establish(pa->pa_pc, ih, IPL_VIDEO, 1337 bktr_intr, bktr, bktr->bktr_dev.dv_xname); 1338 if (bktr->ih == NULL) { 1339 printf(": couldn't establish interrupt"); 1340 if (intrstr != NULL) 1341 printf(" at %s", intrstr); 1342 printf("\n"); 1343 return; 1344 } 1345 1346 if (intrstr != NULL) 1347 printf(": %s\n", intrstr); 1348 #endif /* __OpenBSD__ */ 1349 1350 #if defined(__NetBSD__) 1351 struct pci_attach_args *pa = aux; 1352 pci_intr_handle_t ih; 1353 const char *intrstr; 1354 int retval; 1355 int unit; 1356 1357 bktr = (bktr_ptr_t)self; 1358 unit = bktr->bktr_dev.dv_unit; 1359 bktr->dmat = pa->pa_dmat; 1360 1361 printf("\n"); 1362 1363 /* 1364 * map memory 1365 */ 1366 retval = pci_mapreg_map(pa, PCI_MAPREG_START, 1367 PCI_MAPREG_TYPE_MEM 1368 | PCI_MAPREG_MEM_TYPE_32BIT, 0, 1369 &bktr->memt, &bktr->memh, NULL, 1370 &bktr->obmemsz); 1371 DPR(("pci_mapreg_map: memt %x, memh %x, size %x\n", 1372 bktr->memt, (u_int)bktr->memh, (u_int)bktr->obmemsz)); 1373 if (retval) { 1374 printf("%s: couldn't map memory\n", bktr_name(bktr)); 1375 return; 1376 } 1377 1378 /* 1379 * Disable the brooktree device 1380 */ 1381 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED); 1382 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED); 1383 1384 /* 1385 * map interrupt 1386 */ 1387 if (pci_intr_map(pa->pa_pc, pa->pa_intrtag, pa->pa_intrpin, 1388 pa->pa_intrline, &ih)) { 1389 printf("%s: couldn't map interrupt\n", 1390 bktr_name(bktr)); 1391 return; 1392 } 1393 intrstr = pci_intr_string(pa->pa_pc, ih); 1394 bktr->ih = pci_intr_establish(pa->pa_pc, ih, IPL_VIDEO, 1395 bktr_intr, bktr); 1396 if (bktr->ih == NULL) { 1397 printf("%s: couldn't establish interrupt", 1398 bktr_name(bktr)); 1399 if (intrstr != NULL) 1400 printf(" at %s", intrstr); 1401 printf("\n"); 1402 return; 1403 } 1404 if (intrstr != NULL) 1405 printf("%s: interrupting at %s\n", bktr_name(bktr), 1406 intrstr); 1407 #endif /* __NetBSD__ */ 1408 1409 /* 1410 * PCI latency timer. 32 is a good value for 4 bus mastering slots, if 1411 * you have more than four, then 16 would probably be a better value. 1412 */ 1413 #ifndef BROOKTREE_DEF_LATENCY_VALUE 1414 #define BROOKTREE_DEF_LATENCY_VALUE 10 1415 #endif 1416 latency = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_LATENCY_TIMER); 1417 latency = (latency >> 8) & 0xff; 1418 1419 if (!latency) { 1420 if (bootverbose) { 1421 printf("%s: PCI bus latency was 0 changing to %d", 1422 bktr_name(bktr), BROOKTREE_DEF_LATENCY_VALUE); 1423 } 1424 latency = BROOKTREE_DEF_LATENCY_VALUE; 1425 pci_conf_write(pa->pa_pc, pa->pa_tag, 1426 PCI_LATENCY_TIMER, latency<<8); 1427 } 1428 1429 1430 /* Enabled Bus Master 1431 XXX: check if all old DMA is stopped first (e.g. after warm 1432 boot) */ 1433 fun = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); 1434 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, 1435 fun | PCI_COMMAND_MASTER_ENABLE); 1436 1437 /* read the pci id and determine the card type */ 1438 fun = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_ID_REG); 1439 rev = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_CLASS_REG) & 0x000000ff; 1440 1441 common_bktr_attach(bktr, unit, fun, rev); 1442 } 1443 1444 1445 /* 1446 * Special Memory Allocation 1447 */ 1448 vm_offset_t 1449 get_bktr_mem(bktr, dmapp, size) 1450 bktr_ptr_t bktr; 1451 bus_dmamap_t *dmapp; 1452 unsigned int size; 1453 { 1454 bus_dma_tag_t dmat = bktr->dmat; 1455 bus_dma_segment_t seg; 1456 bus_size_t align; 1457 int rseg; 1458 caddr_t kva; 1459 1460 /* 1461 * Allocate a DMA area 1462 */ 1463 align = 1 << 24; 1464 if (bus_dmamem_alloc(dmat, size, align, 0, &seg, 1, 1465 &rseg, BUS_DMA_NOWAIT)) { 1466 align = PAGE_SIZE; 1467 if (bus_dmamem_alloc(dmat, size, align, 0, &seg, 1, 1468 &rseg, BUS_DMA_NOWAIT)) { 1469 printf("%s: Unable to dmamem_alloc of %d bytes\n", 1470 bktr_name(bktr), size); 1471 return 0; 1472 } 1473 } 1474 if (bus_dmamem_map(dmat, &seg, rseg, size, 1475 &kva, BUS_DMA_NOWAIT|BUS_DMA_COHERENT)) { 1476 printf("%s: Unable to dmamem_map of %d bytes\n", 1477 bktr_name(bktr), size); 1478 bus_dmamem_free(dmat, &seg, rseg); 1479 return 0; 1480 } 1481 #ifdef __OpenBSD__ 1482 bktr->dm_mapsize = size; 1483 #endif 1484 /* 1485 * Create and locd the DMA map for the DMA area 1486 */ 1487 if (bus_dmamap_create(dmat, size, 1, size, 0, BUS_DMA_NOWAIT, dmapp)) { 1488 printf("%s: Unable to dmamap_create of %d bytes\n", 1489 bktr_name(bktr), size); 1490 bus_dmamem_unmap(dmat, kva, size); 1491 bus_dmamem_free(dmat, &seg, rseg); 1492 return 0; 1493 } 1494 if (bus_dmamap_load(dmat, *dmapp, kva, size, NULL, BUS_DMA_NOWAIT)) { 1495 printf("%s: Unable to dmamap_load of %d bytes\n", 1496 bktr_name(bktr), size); 1497 bus_dmamem_unmap(dmat, kva, size); 1498 bus_dmamem_free(dmat, &seg, rseg); 1499 bus_dmamap_destroy(dmat, *dmapp); 1500 return 0; 1501 } 1502 return (vm_offset_t)kva; 1503 } 1504 1505 void 1506 free_bktr_mem(bktr, dmap, kva) 1507 bktr_ptr_t bktr; 1508 bus_dmamap_t dmap; 1509 vm_offset_t kva; 1510 { 1511 bus_dma_tag_t dmat = bktr->dmat; 1512 1513 #ifdef __NetBSD__ 1514 bus_dmamem_unmap(dmat, (caddr_t)kva, dmap->dm_mapsize); 1515 #else 1516 bus_dmamem_unmap(dmat, (caddr_t)kva, bktr->dm_mapsize); 1517 #endif 1518 bus_dmamem_free(dmat, dmap->dm_segs, 1); 1519 bus_dmamap_destroy(dmat, dmap); 1520 } 1521 1522 1523 /*--------------------------------------------------------- 1524 ** 1525 ** BrookTree 848 character device driver routines 1526 ** 1527 **--------------------------------------------------------- 1528 */ 1529 1530 1531 #define VIDEO_DEV 0x00 1532 #define TUNER_DEV 0x01 1533 #define VBI_DEV 0x02 1534 1535 #define UNIT(x) (minor((x) & 0x0f)) 1536 #define FUNCTION(x) (minor((x >> 4) & 0x0f)) 1537 1538 /* 1539 * 1540 */ 1541 int 1542 bktr_open(dev_t dev, int flags, int fmt, struct proc *p) 1543 { 1544 bktr_ptr_t bktr; 1545 int unit; 1546 1547 unit = UNIT(dev); 1548 1549 /* unit out of range */ 1550 if ((unit > bktr_cd.cd_ndevs) || (bktr_cd.cd_devs[unit] == NULL)) 1551 return(ENXIO); 1552 1553 bktr = bktr_cd.cd_devs[unit]; 1554 1555 if (!(bktr->flags & METEOR_INITALIZED)) /* device not found */ 1556 return(ENXIO); 1557 1558 switch (FUNCTION(dev)) { 1559 case VIDEO_DEV: 1560 return(video_open(bktr)); 1561 case TUNER_DEV: 1562 return(tuner_open(bktr)); 1563 case VBI_DEV: 1564 return(vbi_open(bktr)); 1565 } 1566 1567 return(ENXIO); 1568 } 1569 1570 1571 /* 1572 * 1573 */ 1574 int 1575 bktr_close(dev_t dev, int flags, int fmt, struct proc *p) 1576 { 1577 bktr_ptr_t bktr; 1578 int unit; 1579 1580 unit = UNIT(dev); 1581 1582 bktr = bktr_cd.cd_devs[unit]; 1583 1584 switch (FUNCTION(dev)) { 1585 case VIDEO_DEV: 1586 return(video_close(bktr)); 1587 case TUNER_DEV: 1588 return(tuner_close(bktr)); 1589 case VBI_DEV: 1590 return(vbi_close(bktr)); 1591 } 1592 1593 return(ENXIO); 1594 } 1595 1596 /* 1597 * 1598 */ 1599 int 1600 bktr_read(dev_t dev, struct uio *uio, int ioflag) 1601 { 1602 bktr_ptr_t bktr; 1603 int unit; 1604 1605 unit = UNIT(dev); 1606 1607 bktr = bktr_cd.cd_devs[unit]; 1608 1609 switch (FUNCTION(dev)) { 1610 case VIDEO_DEV: 1611 return(video_read(bktr, unit, dev, uio)); 1612 case VBI_DEV: 1613 return(vbi_read(bktr, uio, ioflag)); 1614 } 1615 1616 return(ENXIO); 1617 } 1618 1619 1620 /* 1621 * 1622 */ 1623 int 1624 bktr_write(dev_t dev, struct uio *uio, int ioflag) 1625 { 1626 /* operation not supported */ 1627 return(EOPNOTSUPP); 1628 } 1629 1630 /* 1631 * 1632 */ 1633 int 1634 bktr_ioctl(dev_t dev, ioctl_cmd_t cmd, caddr_t arg, int flag, struct proc* pr) 1635 { 1636 bktr_ptr_t bktr; 1637 int unit; 1638 1639 unit = UNIT(dev); 1640 1641 bktr = bktr_cd.cd_devs[unit]; 1642 1643 if (bktr->bigbuf == 0) /* no frame buffer allocated (ioctl failed) */ 1644 return(ENOMEM); 1645 1646 switch (FUNCTION(dev)) { 1647 case VIDEO_DEV: 1648 return(video_ioctl(bktr, unit, cmd, arg, pr)); 1649 case TUNER_DEV: 1650 return(tuner_ioctl(bktr, unit, cmd, arg, pr)); 1651 } 1652 1653 return(ENXIO); 1654 } 1655 1656 /* 1657 * 1658 */ 1659 paddr_t 1660 bktr_mmap(dev_t dev, off_t offset, int nprot) 1661 { 1662 int unit; 1663 bktr_ptr_t bktr; 1664 1665 unit = UNIT(dev); 1666 1667 if (FUNCTION(dev) > 0) /* only allow mmap on /dev/bktr[n] */ 1668 return(-1); 1669 1670 bktr = bktr_cd.cd_devs[unit]; 1671 1672 if ((vaddr_t)offset < 0) 1673 return(-1); 1674 1675 if ((vaddr_t)offset >= bktr->alloc_pages * PAGE_SIZE) 1676 return(-1); 1677 1678 #ifdef __NetBSD__ 1679 return (bus_dmamem_mmap(bktr->dmat, bktr->dm_mem->dm_segs, 1, 1680 (vaddr_t)offset, nprot, BUS_DMA_WAITOK)); 1681 #else 1682 return(i386_btop(vtophys(bktr->bigbuf) + offset)); 1683 #endif 1684 } 1685 1686 #endif /* __NetBSD__ || __OpenBSD__ */ 1687
Indexes created Wed Oct 29 09:09:48 GMT 2025