1 /* $FreeBSD: src/sys/dev/bktr/bktr_os.c,v 1.4.2.3 2000/10/27 00:46:09 jhb Exp $ */ 2 /* $DragonFly: src/sys/dev/video/bktr/bktr_os.c,v 1.6 2003/08/27 06:48:15 rob Exp $ */ 3 4 /* 5 * This is part of the Driver for Video Capture Cards (Frame grabbers) 6 * and TV Tuner cards using the Brooktree Bt848, Bt848A, Bt849A, Bt878, Bt879 7 * chipset. 8 * Copyright Roger Hardiman and Amancio Hasty. 9 * 10 * bktr_os : This has all the Operating System dependant code, 11 * probe/attach and open/close/ioctl/read/mmap 12 * memory allocation 13 * PCI bus interfacing 14 * 15 * 16 */ 17 18 /* 19 * 1. Redistributions of source code must retain the 20 * Copyright (c) 1997 Amancio Hasty, 1999 Roger Hardiman 21 * All rights reserved. 22 * 23 * Redistribution and use in source and binary forms, with or without 24 * modification, are permitted provided that the following conditions 25 * are met: 26 * 1. Redistributions of source code must retain the above copyright 27 * notice, this list of conditions and the following disclaimer. 28 * 2. Redistributions in binary form must reproduce the above copyright 29 * notice, this list of conditions and the following disclaimer in the 30 * documentation and/or other materials provided with the distribution. 31 * 3. All advertising materials mentioning features or use of this software 32 * must display the following acknowledgement: 33 * This product includes software developed by Amancio Hasty and 34 * Roger Hardiman 35 * 4. The name of the author may not be used to endorse or promote products 36 * derived from this software without specific prior written permission. 37 * 38 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 39 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 40 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 41 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 42 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 43 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 44 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 45 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 46 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 47 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 48 * POSSIBILITY OF SUCH DAMAGE. 49 */ 50 51 52 #ifdef __FreeBSD__ 53 #include "use_bktr.h" 54 #endif /* __FreeBSD__ */ 55 56 #include "opt_bktr.h" /* include any kernel config options */ 57 58 #define FIFO_RISC_DISABLED 0 59 #define ALL_INTS_DISABLED 0 60 61 62 /*******************/ 63 /* *** FreeBSD *** */ 64 /*******************/ 65 #ifdef __FreeBSD__ 66 67 #include <sys/param.h> 68 #include <sys/systm.h> 69 #include <sys/conf.h> 70 #include <sys/uio.h> 71 #include <sys/kernel.h> 72 #include <sys/signalvar.h> 73 #include <sys/mman.h> 74 #include <sys/poll.h> 75 #include <sys/select.h> 76 #include <sys/vnode.h> 77 78 #include <vm/vm.h> 79 #include <vm/vm_kern.h> 80 #include <vm/pmap.h> 81 #include <vm/vm_extern.h> 82 83 #if (__FreeBSD_version >=400000) || (NSMBUS > 0) 84 #include <sys/bus.h> /* used by smbus and newbus */ 85 #endif 86 87 #if (__FreeBSD_version >=300000) 88 #include <machine/bus_memio.h> /* used by bus space */ 89 #include <machine/bus.h> /* used by bus space and newbus */ 90 #include <sys/bus.h> 91 #endif 92 93 #if (__FreeBSD_version >=400000) 94 #include <sys/rman.h> /* used by newbus */ 95 #include <machine/resource.h> /* used by newbus */ 96 #endif 97 98 #if (__FreeBSD_version < 500000) 99 #include <machine/clock.h> /* for DELAY */ 100 #endif 101 102 #include <bus/pci/pcivar.h> 103 #include <bus/pci/pcireg.h> 104 105 #include <sys/sysctl.h> 106 int bt848_card = -1; 107 int bt848_tuner = -1; 108 int bt848_reverse_mute = -1; 109 int bt848_format = -1; 110 int bt848_slow_msp_audio = -1; 111 112 SYSCTL_NODE(_hw, OID_AUTO, bt848, CTLFLAG_RW, 0, "Bt848 Driver mgmt"); 113 SYSCTL_INT(_hw_bt848, OID_AUTO, card, CTLFLAG_RW, &bt848_card, -1, ""); 114 SYSCTL_INT(_hw_bt848, OID_AUTO, tuner, CTLFLAG_RW, &bt848_tuner, -1, ""); 115 SYSCTL_INT(_hw_bt848, OID_AUTO, reverse_mute, CTLFLAG_RW, &bt848_reverse_mute, -1, ""); 116 SYSCTL_INT(_hw_bt848, OID_AUTO, format, CTLFLAG_RW, &bt848_format, -1, ""); 117 SYSCTL_INT(_hw_bt848, OID_AUTO, slow_msp_audio, CTLFLAG_RW, &bt848_slow_msp_audio, -1, ""); 118 119 #if (__FreeBSD__ == 2) 120 #define PCIR_REVID PCI_CLASS_REG 121 #endif 122 123 #endif /* end freebsd section */ 124 125 126 127 /****************/ 128 /* *** BSDI *** */ 129 /****************/ 130 #ifdef __bsdi__ 131 #endif /* __bsdi__ */ 132 133 134 /**************************/ 135 /* *** OpenBSD/NetBSD *** */ 136 /**************************/ 137 #if defined(__NetBSD__) || defined(__OpenBSD__) 138 139 #include <sys/param.h> 140 #include <sys/systm.h> 141 #include <sys/conf.h> 142 #include <sys/uio.h> 143 #include <sys/kernel.h> 144 #include <sys/signalvar.h> 145 #include <sys/mman.h> 146 #include <sys/poll.h> 147 #include <sys/select.h> 148 #include <sys/vnode.h> 149 150 #include <vm/vm.h> 151 152 #ifndef __NetBSD__ 153 #include <vm/vm_kern.h> 154 #include <vm/pmap.h> 155 #include <vm/vm_extern.h> 156 #endif 157 158 #include <sys/device.h> 159 #include <dev/pci/pcivar.h> 160 #include <dev/pci/pcireg.h> 161 #include <dev/pci/pcidevs.h> 162 163 #define BKTR_DEBUG 164 #ifdef BKTR_DEBUG 165 int bktr_debug = 0; 166 #define DPR(x) (bktr_debug ? printf x : 0) 167 #else 168 #define DPR(x) 169 #endif 170 #endif /* __NetBSD__ || __OpenBSD__ */ 171 172 173 #ifdef __NetBSD__ 174 #include <dev/ic/bt8xx.h> /* NetBSD location for .h files */ 175 #include <dev/pci/bktr/bktr_reg.h> 176 #include <dev/pci/bktr/bktr_tuner.h> 177 #include <dev/pci/bktr/bktr_card.h> 178 #include <dev/pci/bktr/bktr_audio.h> 179 #include <dev/pci/bktr/bktr_core.h> 180 #include <dev/pci/bktr/bktr_os.h> 181 #else /* Traditional location for .h files */ 182 #include <machine/ioctl_meteor.h> 183 #include <machine/ioctl_bt848.h> /* extensions to ioctl_meteor.h */ 184 #include "bktr_reg.h" 185 #include "bktr_tuner.h" 186 #include "bktr_card.h" 187 #include "bktr_audio.h" 188 #include "bktr_core.h" 189 #include "bktr_os.h" 190 #if defined(BKTR_USE_FREEBSD_SMBUS) 191 #include "bktr_i2c.h" 192 #endif 193 #endif 194 195 196 197 /****************************/ 198 /* *** FreeBSD 4.x code *** */ 199 /****************************/ 200 #if (__FreeBSD_version >= 400000) 201 202 static int bktr_probe( device_t dev ); 203 static int bktr_attach( device_t dev ); 204 static int bktr_detach( device_t dev ); 205 static int bktr_shutdown( device_t dev ); 206 static void bktr_intr(void *arg) { common_bktr_intr(arg); } 207 208 static device_method_t bktr_methods[] = { 209 /* Device interface */ 210 DEVMETHOD(device_probe, bktr_probe), 211 DEVMETHOD(device_attach, bktr_attach), 212 DEVMETHOD(device_detach, bktr_detach), 213 DEVMETHOD(device_shutdown, bktr_shutdown), 214 215 { 0, 0 } 216 }; 217 218 static driver_t bktr_driver = { 219 "bktr", 220 bktr_methods, 221 sizeof(struct bktr_softc), 222 }; 223 224 static devclass_t bktr_devclass; 225 226 static d_open_t bktr_open; 227 static d_close_t bktr_close; 228 static d_read_t bktr_read; 229 static d_write_t bktr_write; 230 static d_ioctl_t bktr_ioctl; 231 static d_mmap_t bktr_mmap; 232 static d_poll_t bktr_poll; 233 234 #define CDEV_MAJOR 92 235 static struct cdevsw bktr_cdevsw = { 236 /* name */ "bktr", 237 /* maj */ CDEV_MAJOR, 238 /* flags */ 0, 239 /* port */ NULL, 240 /* autoq */ 0, 241 242 /* open */ bktr_open, 243 /* close */ bktr_close, 244 /* read */ bktr_read, 245 /* write */ bktr_write, 246 /* ioctl */ bktr_ioctl, 247 /* poll */ bktr_poll, 248 /* mmap */ bktr_mmap, 249 /* strategy */ nostrategy, 250 /* dump */ nodump, 251 /* psize */ nopsize 252 }; 253 254 DRIVER_MODULE(bktr, pci, bktr_driver, bktr_devclass, 0, 0); 255 #if (__FreeBSD_version > 410000) 256 MODULE_DEPEND(bktr, bktr_mem, 1,1,1); 257 MODULE_VERSION(bktr, 1); 258 #endif 259 260 261 /* 262 * the boot time probe routine. 263 */ 264 static int 265 bktr_probe( device_t dev ) 266 { 267 unsigned int type = pci_get_devid(dev); 268 unsigned int rev = pci_get_revid(dev); 269 270 if (PCI_VENDOR(type) == PCI_VENDOR_BROOKTREE) 271 { 272 switch (PCI_PRODUCT(type)) { 273 case PCI_PRODUCT_BROOKTREE_BT848: 274 if (rev == 0x12) 275 device_set_desc(dev, "BrookTree 848A"); 276 else 277 device_set_desc(dev, "BrookTree 848"); 278 return 0; 279 case PCI_PRODUCT_BROOKTREE_BT849: 280 device_set_desc(dev, "BrookTree 849A"); 281 return 0; 282 case PCI_PRODUCT_BROOKTREE_BT878: 283 device_set_desc(dev, "BrookTree 878"); 284 return 0; 285 case PCI_PRODUCT_BROOKTREE_BT879: 286 device_set_desc(dev, "BrookTree 879"); 287 return 0; 288 } 289 }; 290 291 return ENXIO; 292 } 293 294 295 /* 296 * the attach routine. 297 */ 298 static int 299 bktr_attach( device_t dev ) 300 { 301 u_long latency; 302 u_long fun; 303 u_long val; 304 unsigned int rev; 305 unsigned int unit; 306 int error = 0; 307 #ifdef BROOKTREE_IRQ 308 u_long old_irq, new_irq; 309 #endif 310 311 struct bktr_softc *bktr = device_get_softc(dev); 312 313 unit = device_get_unit(dev); 314 315 /* build the device name for bktr_name() */ 316 snprintf(bktr->bktr_xname, sizeof(bktr->bktr_xname), "bktr%d",unit); 317 318 /* 319 * Enable bus mastering and Memory Mapped device 320 */ 321 val = pci_read_config(dev, PCIR_COMMAND, 4); 322 val |= (PCIM_CMD_MEMEN|PCIM_CMD_BUSMASTEREN); 323 pci_write_config(dev, PCIR_COMMAND, val, 4); 324 325 /* 326 * Map control/status registers. 327 */ 328 bktr->mem_rid = PCIR_MAPS; 329 bktr->res_mem = bus_alloc_resource(dev, SYS_RES_MEMORY, &bktr->mem_rid, 330 0, ~0, 1, RF_ACTIVE); 331 332 333 if (!bktr->res_mem) { 334 device_printf(dev, "could not map memory\n"); 335 error = ENXIO; 336 goto fail; 337 } 338 bktr->memt = rman_get_bustag(bktr->res_mem); 339 bktr->memh = rman_get_bushandle(bktr->res_mem); 340 341 342 /* 343 * Disable the brooktree device 344 */ 345 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED); 346 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED); 347 348 349 #ifdef BROOKTREE_IRQ /* from the configuration file */ 350 old_irq = pci_conf_read(tag, PCI_INTERRUPT_REG); 351 pci_conf_write(tag, PCI_INTERRUPT_REG, BROOKTREE_IRQ); 352 new_irq = pci_conf_read(tag, PCI_INTERRUPT_REG); 353 printf("bktr%d: attach: irq changed from %d to %d\n", 354 unit, (old_irq & 0xff), (new_irq & 0xff)); 355 #endif 356 357 /* 358 * Allocate our interrupt. 359 */ 360 bktr->irq_rid = 0; 361 bktr->res_irq = bus_alloc_resource(dev, SYS_RES_IRQ, &bktr->irq_rid, 362 0, ~0, 1, RF_SHAREABLE | RF_ACTIVE); 363 if (bktr->res_irq == NULL) { 364 device_printf(dev, "could not map interrupt\n"); 365 error = ENXIO; 366 goto fail; 367 } 368 369 error = bus_setup_intr(dev, bktr->res_irq, INTR_TYPE_TTY, 370 bktr_intr, bktr, &bktr->res_ih); 371 if (error) { 372 device_printf(dev, "could not setup irq\n"); 373 goto fail; 374 375 } 376 377 378 /* Update the Device Control Register */ 379 /* on Bt878 and Bt879 cards */ 380 fun = pci_read_config( dev, 0x40, 2); 381 fun = fun | 1; /* Enable writes to the sub-system vendor ID */ 382 383 #if defined( BKTR_430_FX_MODE ) 384 if (bootverbose) printf("Using 430 FX chipset compatibilty mode\n"); 385 fun = fun | 2; /* Enable Intel 430 FX compatibility mode */ 386 #endif 387 388 #if defined( BKTR_SIS_VIA_MODE ) 389 if (bootverbose) printf("Using SiS/VIA chipset compatibilty mode\n"); 390 fun = fun | 4; /* Enable SiS/VIA compatibility mode (usefull for 391 OPTi chipset motherboards too */ 392 #endif 393 pci_write_config(dev, 0x40, fun, 2); 394 395 396 /* XXX call bt848_i2c dependent attach() routine */ 397 #if defined(BKTR_USE_FREEBSD_SMBUS) 398 if (bt848_i2c_attach(unit, bktr, &bktr->i2c_sc)) 399 printf("bktr%d: i2c_attach: can't attach\n", unit); 400 #endif 401 402 403 /* 404 * PCI latency timer. 32 is a good value for 4 bus mastering slots, if 405 * you have more than four, then 16 would probably be a better value. 406 */ 407 #ifndef BROOKTREE_DEF_LATENCY_VALUE 408 #define BROOKTREE_DEF_LATENCY_VALUE 10 409 #endif 410 latency = pci_read_config(dev, PCI_LATENCY_TIMER, 4); 411 latency = (latency >> 8) & 0xff; 412 if ( bootverbose ) { 413 if (latency) 414 printf("brooktree%d: PCI bus latency is", unit); 415 else 416 printf("brooktree%d: PCI bus latency was 0 changing to", 417 unit); 418 } 419 if ( !latency ) { 420 latency = BROOKTREE_DEF_LATENCY_VALUE; 421 pci_write_config(dev, PCI_LATENCY_TIMER, latency<<8, 4); 422 } 423 if ( bootverbose ) { 424 printf(" %d.\n", (int) latency); 425 } 426 427 /* read the pci device id and revision id */ 428 fun = pci_get_devid(dev); 429 rev = pci_get_revid(dev); 430 431 /* call the common attach code */ 432 common_bktr_attach( bktr, unit, fun, rev ); 433 434 /* make the device entries */ 435 bktr->bktrdev = make_dev(&bktr_cdevsw, unit, 436 0, 0, 0444, "bktr%d", unit); 437 bktr->tunerdev= make_dev(&bktr_cdevsw, unit+16, 438 0, 0, 0444, "tuner%d", unit); 439 bktr->vbidev = make_dev(&bktr_cdevsw, unit+32, 440 0, 0, 0444, "vbi%d" , unit); 441 442 443 /* if this is unit 0 (/dev/bktr0, /dev/tuner0, /dev/vbi0) then make */ 444 /* alias entries to /dev/bktr /dev/tuner and /dev/vbi */ 445 #if (__FreeBSD_version >=500000) 446 if (unit == 0) { 447 bktr->bktrdev_alias = make_dev_alias(bktr->bktrdev, "bktr"); 448 bktr->tunerdev_alias= make_dev_alias(bktr->tunerdev, "tuner"); 449 bktr->vbidev_alias = make_dev_alias(bktr->vbidev, "vbi"); 450 } 451 #endif 452 453 return 0; 454 455 fail: 456 if (bktr->res_irq) 457 bus_release_resource(dev, SYS_RES_IRQ, bktr->irq_rid, bktr->res_irq); 458 if (bktr->res_mem) 459 bus_release_resource(dev, SYS_RES_IRQ, bktr->mem_rid, bktr->res_mem); 460 return error; 461 462 } 463 464 /* 465 * the detach routine. 466 */ 467 static int 468 bktr_detach( device_t dev ) 469 { 470 unsigned int unit; 471 472 struct bktr_softc *bktr = device_get_softc(dev); 473 474 unit = device_get_unit(dev); 475 476 /* Disable the brooktree device */ 477 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED); 478 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED); 479 480 /* Note: We do not free memory for RISC programs, grab buffer, vbi buffers */ 481 /* The memory is retained by the bktr_mem module so we can unload and */ 482 /* then reload the main bktr driver module */ 483 484 /* Unregister the /dev/bktrN, tunerN and vbiN devices */ 485 destroy_dev(bktr->vbidev); 486 destroy_dev(bktr->tunerdev); 487 destroy_dev(bktr->bktrdev); 488 489 /* If this is unit 0, then destroy the alias entries too */ 490 #if (__FreeBSD_version >=500000) 491 if (unit == 0) { 492 destroy_dev(bktr->vbidev_alias); 493 destroy_dev(bktr->tunerdev_alias); 494 destroy_dev(bktr->bktrdev_alias); 495 } 496 #endif 497 498 /* 499 * Deallocate resources. 500 */ 501 bus_teardown_intr(dev, bktr->res_irq, bktr->res_ih); 502 bus_release_resource(dev, SYS_RES_IRQ, bktr->irq_rid, bktr->res_irq); 503 bus_release_resource(dev, SYS_RES_MEMORY, bktr->mem_rid, bktr->res_mem); 504 505 return 0; 506 } 507 508 /* 509 * the shutdown routine. 510 */ 511 static int 512 bktr_shutdown( device_t dev ) 513 { 514 struct bktr_softc *bktr = device_get_softc(dev); 515 516 /* Disable the brooktree device */ 517 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED); 518 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED); 519 520 return 0; 521 } 522 523 524 /* 525 * Special Memory Allocation 526 */ 527 vm_offset_t 528 get_bktr_mem( int unit, unsigned size ) 529 { 530 vm_offset_t addr = 0; 531 532 addr = vm_page_alloc_contig(size, 0, 0xffffffff, 1<<24); 533 if (addr == 0) 534 addr = vm_page_alloc_contig(size, 0, 0xffffffff, PAGE_SIZE); 535 if (addr == 0) { 536 printf("bktr%d: Unable to allocate %d bytes of memory.\n", 537 unit, size); 538 } 539 540 return( addr ); 541 } 542 543 544 /*--------------------------------------------------------- 545 ** 546 ** BrookTree 848 character device driver routines 547 ** 548 **--------------------------------------------------------- 549 */ 550 551 #define VIDEO_DEV 0x00 552 #define TUNER_DEV 0x01 553 #define VBI_DEV 0x02 554 555 #define UNIT(x) ((x) & 0x0f) 556 #define FUNCTION(x) (x >> 4) 557 558 /* 559 * 560 */ 561 int 562 bktr_open( dev_t dev, int flags, int fmt, d_thread_t *td) 563 { 564 bktr_ptr_t bktr; 565 int unit; 566 int result; 567 568 unit = UNIT( minor(dev) ); 569 570 /* Get the device data */ 571 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 572 if (bktr == NULL) { 573 /* the device is no longer valid/functioning */ 574 return (ENXIO); 575 } 576 577 if (!(bktr->flags & METEOR_INITALIZED)) /* device not found */ 578 return( ENXIO ); 579 580 /* Record that the device is now busy */ 581 device_busy(devclass_get_device(bktr_devclass, unit)); 582 583 584 if (bt848_card != -1) { 585 if ((bt848_card >> 8 == unit ) && 586 ( (bt848_card & 0xff) < Bt848_MAX_CARD )) { 587 if ( bktr->bt848_card != (bt848_card & 0xff) ) { 588 bktr->bt848_card = (bt848_card & 0xff); 589 probeCard(bktr, FALSE, unit); 590 } 591 } 592 } 593 594 if (bt848_tuner != -1) { 595 if ((bt848_tuner >> 8 == unit ) && 596 ( (bt848_tuner & 0xff) < Bt848_MAX_TUNER )) { 597 if ( bktr->bt848_tuner != (bt848_tuner & 0xff) ) { 598 bktr->bt848_tuner = (bt848_tuner & 0xff); 599 probeCard(bktr, FALSE, unit); 600 } 601 } 602 } 603 604 if (bt848_reverse_mute != -1) { 605 if ((bt848_reverse_mute >> 8) == unit ) { 606 bktr->reverse_mute = bt848_reverse_mute & 0xff; 607 } 608 } 609 610 if (bt848_slow_msp_audio != -1) { 611 if ((bt848_slow_msp_audio >> 8) == unit ) { 612 bktr->slow_msp_audio = (bt848_slow_msp_audio & 0xff); 613 } 614 } 615 616 switch ( FUNCTION( minor(dev) ) ) { 617 case VIDEO_DEV: 618 result = video_open( bktr ); 619 break; 620 case TUNER_DEV: 621 result = tuner_open( bktr ); 622 break; 623 case VBI_DEV: 624 result = vbi_open( bktr ); 625 break; 626 default: 627 result = ENXIO; 628 break; 629 } 630 631 /* If there was an error opening the device, undo the busy status */ 632 if (result != 0) 633 device_unbusy(devclass_get_device(bktr_devclass, unit)); 634 return( result ); 635 } 636 637 638 /* 639 * 640 */ 641 int 642 bktr_close( dev_t dev, int flags, int fmt, d_thread_t *td) 643 { 644 bktr_ptr_t bktr; 645 int unit; 646 int result; 647 648 unit = UNIT( minor(dev) ); 649 650 /* Get the device data */ 651 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 652 if (bktr == NULL) { 653 /* the device is no longer valid/functioning */ 654 return (ENXIO); 655 } 656 657 switch ( FUNCTION( minor(dev) ) ) { 658 case VIDEO_DEV: 659 result = video_close( bktr ); 660 break; 661 case TUNER_DEV: 662 result = tuner_close( bktr ); 663 break; 664 case VBI_DEV: 665 result = vbi_close( bktr ); 666 break; 667 default: 668 return (ENXIO); 669 break; 670 } 671 672 device_unbusy(devclass_get_device(bktr_devclass, unit)); 673 return( result ); 674 } 675 676 677 /* 678 * 679 */ 680 int 681 bktr_read( dev_t dev, struct uio *uio, int ioflag ) 682 { 683 bktr_ptr_t bktr; 684 int unit; 685 686 unit = UNIT(minor(dev)); 687 688 /* Get the device data */ 689 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 690 if (bktr == NULL) { 691 /* the device is no longer valid/functioning */ 692 return (ENXIO); 693 } 694 695 switch ( FUNCTION( minor(dev) ) ) { 696 case VIDEO_DEV: 697 return( video_read( bktr, unit, dev, uio ) ); 698 case VBI_DEV: 699 return( vbi_read( bktr, uio, ioflag ) ); 700 } 701 return( ENXIO ); 702 } 703 704 705 /* 706 * 707 */ 708 int 709 bktr_write( dev_t dev, struct uio *uio, int ioflag ) 710 { 711 return( EINVAL ); /* XXX or ENXIO ? */ 712 } 713 714 715 /* 716 * 717 */ 718 int 719 bktr_ioctl( dev_t dev, ioctl_cmd_t cmd, caddr_t arg, int flag, d_thread_t *td) 720 { 721 bktr_ptr_t bktr; 722 int unit; 723 724 unit = UNIT(minor(dev)); 725 726 /* Get the device data */ 727 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 728 if (bktr == NULL) { 729 /* the device is no longer valid/functioning */ 730 return (ENXIO); 731 } 732 733 if (bktr->bigbuf == 0) /* no frame buffer allocated (ioctl failed) */ 734 return( ENOMEM ); 735 736 switch ( FUNCTION( minor(dev) ) ) { 737 case VIDEO_DEV: 738 return( video_ioctl( bktr, unit, cmd, arg, td ) ); 739 case TUNER_DEV: 740 return( tuner_ioctl( bktr, unit, cmd, arg, td ) ); 741 } 742 743 return( ENXIO ); 744 } 745 746 747 /* 748 * 749 */ 750 int 751 bktr_mmap( dev_t dev, vm_offset_t offset, int nprot ) 752 { 753 int unit; 754 bktr_ptr_t bktr; 755 756 unit = UNIT(minor(dev)); 757 758 if (FUNCTION(minor(dev)) > 0) /* only allow mmap on /dev/bktr[n] */ 759 return( -1 ); 760 761 /* Get the device data */ 762 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 763 if (bktr == NULL) { 764 /* the device is no longer valid/functioning */ 765 return (ENXIO); 766 } 767 768 if (nprot & PROT_EXEC) 769 return( -1 ); 770 771 if (offset < 0) 772 return( -1 ); 773 774 if (offset >= bktr->alloc_pages * PAGE_SIZE) 775 return( -1 ); 776 777 return( atop(vtophys(bktr->bigbuf) + offset) ); 778 } 779 780 int bktr_poll( dev_t dev, int events, d_thread_t *td) 781 { 782 int unit; 783 bktr_ptr_t bktr; 784 int revents = 0; 785 DECLARE_INTR_MASK(s); 786 787 unit = UNIT(minor(dev)); 788 789 /* Get the device data */ 790 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 791 if (bktr == NULL) { 792 /* the device is no longer valid/functioning */ 793 return (ENXIO); 794 } 795 796 DISABLE_INTR(s); 797 798 if (events & (POLLIN | POLLRDNORM)) { 799 800 switch ( FUNCTION( minor(dev) ) ) { 801 case VBI_DEV: 802 if(bktr->vbisize == 0) 803 selrecord(td, &bktr->vbi_select); 804 else 805 revents |= events & (POLLIN | POLLRDNORM); 806 break; 807 } 808 } 809 810 ENABLE_INTR(s); 811 812 return (revents); 813 } 814 815 #endif /* FreeBSD 4.x specific kernel interface routines */ 816 817 /**********************************/ 818 /* *** FreeBSD 2.2.x and 3.x *** */ 819 /**********************************/ 820 821 #if ((__FreeBSD__ == 2) || (__FreeBSD__ == 3)) 822 823 static bktr_reg_t brooktree[ NBKTR ]; 824 825 static const char* bktr_probe( pcici_t tag, pcidi_t type ); 826 static void bktr_attach( pcici_t tag, int unit ); 827 static void bktr_intr(void *arg) { common_bktr_intr(arg); } 828 829 static u_long bktr_count; 830 831 static struct pci_device bktr_device = { 832 "bktr", 833 bktr_probe, 834 bktr_attach, 835 &bktr_count 836 }; 837 838 DATA_SET (pcidevice_set, bktr_device); 839 840 static d_open_t bktr_open; 841 static d_close_t bktr_close; 842 static d_read_t bktr_read; 843 static d_write_t bktr_write; 844 static d_ioctl_t bktr_ioctl; 845 static d_mmap_t bktr_mmap; 846 static d_poll_t bktr_poll; 847 848 #define CDEV_MAJOR 92 849 static struct cdevsw bktr_cdevsw = 850 { 851 bktr_open, bktr_close, bktr_read, bktr_write, 852 bktr_ioctl, nostop, nullreset, nodevtotty, 853 bktr_poll, bktr_mmap, NULL, "bktr", 854 NULL, -1 855 }; 856 857 static int bktr_devsw_installed; 858 859 static void 860 bktr_drvinit( void *unused ) 861 { 862 dev_t dev; 863 864 if ( ! bktr_devsw_installed ) { 865 dev = makedev(CDEV_MAJOR, 0); 866 cdevsw_add(&dev,&bktr_cdevsw, NULL); 867 bktr_devsw_installed = 1; 868 } 869 } 870 871 SYSINIT(bktrdev,SI_SUB_DRIVERS,SI_ORDER_MIDDLE+CDEV_MAJOR,bktr_drvinit,NULL) 872 873 /* 874 * the boot time probe routine. 875 */ 876 static const char* 877 bktr_probe( pcici_t tag, pcidi_t type ) 878 { 879 unsigned int rev = pci_conf_read( tag, PCIR_REVID) & 0x000000ff; 880 881 if (PCI_VENDOR(type) == PCI_VENDOR_BROOKTREE) 882 { 883 switch (PCI_PRODUCT(type)) { 884 case PCI_PRODUCT_BROOKTREE_BT848: 885 if (rev == 0x12) return("BrookTree 848A"); 886 else return("BrookTree 848"); 887 case PCI_PRODUCT_BROOKTREE_BT849: 888 return("BrookTree 849A"); 889 case PCI_PRODUCT_BROOKTREE_BT878: 890 return("BrookTree 878"); 891 case PCI_PRODUCT_BROOKTREE_BT879: 892 return("BrookTree 879"); 893 } 894 }; 895 896 return ((char *)0); 897 } 898 899 /* 900 * the attach routine. 901 */ 902 static void 903 bktr_attach( pcici_t tag, int unit ) 904 { 905 bktr_ptr_t bktr; 906 u_long latency; 907 u_long fun; 908 unsigned int rev; 909 unsigned long base; 910 #ifdef BROOKTREE_IRQ 911 u_long old_irq, new_irq; 912 #endif 913 914 bktr = &brooktree[unit]; 915 916 if (unit >= NBKTR) { 917 printf("brooktree%d: attach: only %d units configured.\n", 918 unit, NBKTR); 919 printf("brooktree%d: attach: invalid unit number.\n", unit); 920 return; 921 } 922 923 /* build the device name for bktr_name() */ 924 snprintf(bktr->bktr_xname, sizeof(bktr->bktr_xname), "bktr%d",unit); 925 926 /* Enable Memory Mapping */ 927 fun = pci_conf_read(tag, PCI_COMMAND_STATUS_REG); 928 pci_conf_write(tag, PCI_COMMAND_STATUS_REG, fun | 2); 929 930 /* Enable Bus Mastering */ 931 fun = pci_conf_read(tag, PCI_COMMAND_STATUS_REG); 932 pci_conf_write(tag, PCI_COMMAND_STATUS_REG, fun | 4); 933 934 bktr->tag = tag; 935 936 937 /* 938 * Map control/status registers 939 */ 940 pci_map_mem( tag, PCI_MAP_REG_START, (vm_offset_t *) &base, 941 &bktr->phys_base ); 942 #if (__FreeBSD_version >= 300000) 943 bktr->memt = I386_BUS_SPACE_MEM; /* XXX should use proper bus space */ 944 bktr->memh = (bus_space_handle_t)base; /* XXX functions here */ 945 #endif 946 947 /* 948 * Disable the brooktree device 949 */ 950 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED); 951 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED); 952 953 #ifdef BROOKTREE_IRQ /* from the configuration file */ 954 old_irq = pci_conf_read(tag, PCI_INTERRUPT_REG); 955 pci_conf_write(tag, PCI_INTERRUPT_REG, BROOKTREE_IRQ); 956 new_irq = pci_conf_read(tag, PCI_INTERRUPT_REG); 957 printf("bktr%d: attach: irq changed from %d to %d\n", 958 unit, (old_irq & 0xff), (new_irq & 0xff)); 959 #endif 960 961 /* 962 * setup the interrupt handling routine 963 */ 964 pci_map_int(tag, bktr_intr, (void*) bktr, &tty_imask); 965 966 967 /* Update the Device Control Register */ 968 /* on Bt878 and Bt879 cards */ 969 fun = pci_conf_read(tag, 0x40); 970 fun = fun | 1; /* Enable writes to the sub-system vendor ID */ 971 972 #if defined( BKTR_430_FX_MODE ) 973 if (bootverbose) printf("Using 430 FX chipset compatibilty mode\n"); 974 fun = fun | 2; /* Enable Intel 430 FX compatibility mode */ 975 #endif 976 977 #if defined( BKTR_SIS_VIA_MODE ) 978 if (bootverbose) printf("Using SiS/VIA chipset compatibilty mode\n"); 979 fun = fun | 4; /* Enable SiS/VIA compatibility mode (usefull for 980 OPTi chipset motherboards too */ 981 #endif 982 pci_conf_write(tag, 0x40, fun); 983 984 985 /* XXX call bt848_i2c dependent attach() routine */ 986 #if defined(BKTR_USE_FREEBSD_SMBUS) 987 if (bt848_i2c_attach(unit, bktr, &bktr->i2c_sc)) 988 printf("bktr%d: i2c_attach: can't attach\n", unit); 989 #endif 990 991 992 /* 993 * PCI latency timer. 32 is a good value for 4 bus mastering slots, if 994 * you have more than four, then 16 would probably be a better value. 995 */ 996 #ifndef BROOKTREE_DEF_LATENCY_VALUE 997 #define BROOKTREE_DEF_LATENCY_VALUE 10 998 #endif 999 latency = pci_conf_read(tag, PCI_LATENCY_TIMER); 1000 latency = (latency >> 8) & 0xff; 1001 if ( bootverbose ) { 1002 if (latency) 1003 printf("brooktree%d: PCI bus latency is", unit); 1004 else 1005 printf("brooktree%d: PCI bus latency was 0 changing to", 1006 unit); 1007 } 1008 if ( !latency ) { 1009 latency = BROOKTREE_DEF_LATENCY_VALUE; 1010 pci_conf_write(tag, PCI_LATENCY_TIMER, latency<<8); 1011 } 1012 if ( bootverbose ) { 1013 printf(" %d.\n", (int) latency); 1014 } 1015 1016 1017 /* read the pci device id and revision id */ 1018 fun = pci_conf_read(tag, PCI_ID_REG); 1019 rev = pci_conf_read(tag, PCIR_REVID) & 0x000000ff; 1020 1021 /* call the common attach code */ 1022 common_bktr_attach( bktr, unit, fun, rev ); 1023 1024 } 1025 1026 1027 /* 1028 * Special Memory Allocation 1029 */ 1030 vm_offset_t 1031 get_bktr_mem( int unit, unsigned size ) 1032 { 1033 vm_offset_t addr = 0; 1034 1035 addr = vm_page_alloc_contig(size, 0x100000, 0xffffffff, 1<<24); 1036 if (addr == 0) 1037 addr = vm_page_alloc_contig(size, 0x100000, 0xffffffff, 1038 PAGE_SIZE); 1039 if (addr == 0) { 1040 printf("bktr%d: Unable to allocate %d bytes of memory.\n", 1041 unit, size); 1042 } 1043 1044 return( addr ); 1045 } 1046 1047 /*--------------------------------------------------------- 1048 ** 1049 ** BrookTree 848 character device driver routines 1050 ** 1051 **--------------------------------------------------------- 1052 */ 1053 1054 1055 #define VIDEO_DEV 0x00 1056 #define TUNER_DEV 0x01 1057 #define VBI_DEV 0x02 1058 1059 #define UNIT(x) ((x) & 0x0f) 1060 #define FUNCTION(x) ((x >> 4) & 0x0f) 1061 1062 1063 /* 1064 * 1065 */ 1066 int 1067 bktr_open( dev_t dev, int flags, int fmt, d_thread_t *td) 1068 { 1069 bktr_ptr_t bktr; 1070 int unit; 1071 1072 unit = UNIT( minor(dev) ); 1073 if (unit >= NBKTR) /* unit out of range */ 1074 return( ENXIO ); 1075 1076 bktr = &(brooktree[ unit ]); 1077 1078 if (!(bktr->flags & METEOR_INITALIZED)) /* device not found */ 1079 return( ENXIO ); 1080 1081 1082 if (bt848_card != -1) { 1083 if ((bt848_card >> 8 == unit ) && 1084 ( (bt848_card & 0xff) < Bt848_MAX_CARD )) { 1085 if ( bktr->bt848_card != (bt848_card & 0xff) ) { 1086 bktr->bt848_card = (bt848_card & 0xff); 1087 probeCard(bktr, FALSE, unit); 1088 } 1089 } 1090 } 1091 1092 if (bt848_tuner != -1) { 1093 if ((bt848_tuner >> 8 == unit ) && 1094 ( (bt848_tuner & 0xff) < Bt848_MAX_TUNER )) { 1095 if ( bktr->bt848_tuner != (bt848_tuner & 0xff) ) { 1096 bktr->bt848_tuner = (bt848_tuner & 0xff); 1097 probeCard(bktr, FALSE, unit); 1098 } 1099 } 1100 } 1101 1102 if (bt848_reverse_mute != -1) { 1103 if ((bt848_reverse_mute >> 8) == unit ) { 1104 bktr->reverse_mute = bt848_reverse_mute & 0xff; 1105 } 1106 } 1107 1108 if (bt848_slow_msp_audio != -1) { 1109 if ((bt848_slow_msp_audio >> 8) == unit ) { 1110 bktr->slow_msp_audio = (bt848_slow_msp_audio & 0xff); 1111 } 1112 } 1113 1114 switch ( FUNCTION( minor(dev) ) ) { 1115 case VIDEO_DEV: 1116 return( video_open( bktr ) ); 1117 case TUNER_DEV: 1118 return( tuner_open( bktr ) ); 1119 case VBI_DEV: 1120 return( vbi_open( bktr ) ); 1121 } 1122 return( ENXIO ); 1123 } 1124 1125 1126 /* 1127 * 1128 */ 1129 int 1130 bktr_close( dev_t dev, int flags, int fmt, d_thread_t *td) 1131 { 1132 bktr_ptr_t bktr; 1133 int unit; 1134 1135 unit = UNIT( minor(dev) ); 1136 if (unit >= NBKTR) /* unit out of range */ 1137 return( ENXIO ); 1138 1139 bktr = &(brooktree[ unit ]); 1140 1141 switch ( FUNCTION( minor(dev) ) ) { 1142 case VIDEO_DEV: 1143 return( video_close( bktr ) ); 1144 case TUNER_DEV: 1145 return( tuner_close( bktr ) ); 1146 case VBI_DEV: 1147 return( vbi_close( bktr ) ); 1148 } 1149 1150 return( ENXIO ); 1151 } 1152 1153 /* 1154 * 1155 */ 1156 int 1157 bktr_read( dev_t dev, struct uio *uio, int ioflag ) 1158 { 1159 bktr_ptr_t bktr; 1160 int unit; 1161 1162 unit = UNIT(minor(dev)); 1163 if (unit >= NBKTR) /* unit out of range */ 1164 return( ENXIO ); 1165 1166 bktr = &(brooktree[unit]); 1167 1168 switch ( FUNCTION( minor(dev) ) ) { 1169 case VIDEO_DEV: 1170 return( video_read( bktr, unit, dev, uio ) ); 1171 case VBI_DEV: 1172 return( vbi_read( bktr, uio, ioflag ) ); 1173 } 1174 return( ENXIO ); 1175 } 1176 1177 1178 /* 1179 * 1180 */ 1181 int 1182 bktr_write( dev_t dev, struct uio *uio, int ioflag ) 1183 { 1184 return( EINVAL ); /* XXX or ENXIO ? */ 1185 } 1186 1187 /* 1188 * 1189 */ 1190 int 1191 bktr_ioctl( dev_t dev, ioctl_cmd_t cmd, caddr_t arg, int flag, d_thread_t *td) 1192 { 1193 bktr_ptr_t bktr; 1194 int unit; 1195 1196 unit = UNIT(minor(dev)); 1197 if (unit >= NBKTR) /* unit out of range */ 1198 return( ENXIO ); 1199 1200 bktr = &(brooktree[ unit ]); 1201 1202 if (bktr->bigbuf == 0) /* no frame buffer allocated (ioctl failed) */ 1203 return( ENOMEM ); 1204 1205 switch ( FUNCTION( minor(dev) ) ) { 1206 case VIDEO_DEV: 1207 return( video_ioctl( bktr, unit, cmd, arg, td ) ); 1208 case TUNER_DEV: 1209 return( tuner_ioctl( bktr, unit, cmd, arg, td ) ); 1210 } 1211 1212 return( ENXIO ); 1213 } 1214 1215 /* 1216 * bktr_mmap. 1217 * Note: 2.2.5/2.2.6/2.2.7/3.0 users must manually 1218 * edit the line below and change "vm_offset_t" to "int" 1219 */ 1220 int bktr_mmap( dev_t dev, vm_offset_t offset, int nprot ) 1221 1222 { 1223 int unit; 1224 bktr_ptr_t bktr; 1225 1226 unit = UNIT(minor(dev)); 1227 1228 if (unit >= NBKTR || FUNCTION(minor(dev)) > 0) 1229 return( -1 ); 1230 1231 bktr = &(brooktree[ unit ]); 1232 1233 if (nprot & PROT_EXEC) 1234 return( -1 ); 1235 1236 if (offset < 0) 1237 return( -1 ); 1238 1239 if (offset >= bktr->alloc_pages * PAGE_SIZE) 1240 return( -1 ); 1241 1242 return( i386_btop(vtophys(bktr->bigbuf) + offset) ); 1243 } 1244 1245 int bktr_poll( dev_t dev, int events, d_thread_t *td) 1246 { 1247 int unit; 1248 bktr_ptr_t bktr; 1249 int revents = 0; 1250 1251 unit = UNIT(minor(dev)); 1252 1253 if (unit >= NBKTR) 1254 return( -1 ); 1255 1256 bktr = &(brooktree[ unit ]); 1257 1258 disable_intr(); 1259 1260 if (events & (POLLIN | POLLRDNORM)) { 1261 1262 switch ( FUNCTION( minor(dev) ) ) { 1263 case VBI_DEV: 1264 if(bktr->vbisize == 0) 1265 selrecord(p, &bktr->vbi_select); 1266 else 1267 revents |= events & (POLLIN | POLLRDNORM); 1268 break; 1269 } 1270 } 1271 1272 enable_intr(); 1273 1274 return (revents); 1275 } 1276 1277 1278 #endif /* FreeBSD 2.2.x and 3.x specific kernel interface routines */ 1279 1280 1281 /*****************/ 1282 /* *** BSDI *** */ 1283 /*****************/ 1284 1285 #if defined(__bsdi__) 1286 #endif /* __bsdi__ BSDI specific kernel interface routines */ 1287 1288 1289 /*****************************/ 1290 /* *** OpenBSD / NetBSD *** */ 1291 /*****************************/ 1292 #if defined(__NetBSD__) || defined(__OpenBSD__) 1293 1294 #define IPL_VIDEO IPL_BIO /* XXX */ 1295 1296 static int bktr_intr(void *arg) { return common_bktr_intr(arg); } 1297 1298 #define bktr_open bktropen 1299 #define bktr_close bktrclose 1300 #define bktr_read bktrread 1301 #define bktr_write bktrwrite 1302 #define bktr_ioctl bktrioctl 1303 #define bktr_mmap bktrmmap 1304 1305 vm_offset_t vm_page_alloc_contig(vm_offset_t, vm_offset_t, 1306 vm_offset_t, vm_offset_t); 1307 1308 #if defined(__OpenBSD__) 1309 static int bktr_probe (struct device *, void *, void *); 1310 #else 1311 static int bktr_probe (struct device *, struct cfdata *, void *); 1312 #endif 1313 static void bktr_attach (struct device *, struct device *, void *); 1314 1315 struct cfattach bktr_ca = { 1316 sizeof(struct bktr_softc), bktr_probe, bktr_attach 1317 }; 1318 1319 #if defined(__NetBSD__) 1320 extern struct cfdriver bktr_cd; 1321 #else 1322 struct cfdriver bktr_cd = { 1323 NULL, "bktr", DV_DULL 1324 }; 1325 #endif 1326 1327 int 1328 bktr_probe(parent, match, aux) 1329 struct device *parent; 1330 #if defined(__OpenBSD__) 1331 void *match; 1332 #else 1333 struct cfdata *match; 1334 #endif 1335 void *aux; 1336 { 1337 struct pci_attach_args *pa = aux; 1338 1339 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_BROOKTREE && 1340 (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT848 || 1341 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT849 || 1342 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT878 || 1343 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT879)) 1344 return 1; 1345 1346 return 0; 1347 } 1348 1349 1350 /* 1351 * the attach routine. 1352 */ 1353 static void 1354 bktr_attach(struct device *parent, struct device *self, void *aux) 1355 { 1356 bktr_ptr_t bktr; 1357 u_long latency; 1358 u_long fun; 1359 unsigned int rev; 1360 1361 #if defined(__OpenBSD__) 1362 struct pci_attach_args *pa = aux; 1363 pci_chipset_tag_t pc = pa->pa_pc; 1364 1365 pci_intr_handle_t ih; 1366 const char *intrstr; 1367 int retval; 1368 int unit; 1369 1370 bktr = (bktr_ptr_t)self; 1371 unit = bktr->bktr_dev.dv_unit; 1372 1373 bktr->pc = pa->pa_pc; 1374 bktr->tag = pa->pa_tag; 1375 bktr->dmat = pa->pa_dmat; 1376 1377 /* 1378 * map memory 1379 */ 1380 bktr->memt = pa->pa_memt; 1381 retval = pci_mem_find(pc, pa->pa_tag, PCI_MAPREG_START, 1382 &bktr->phys_base, &bktr->obmemsz, NULL); 1383 if (!retval) 1384 retval = bus_space_map(pa->pa_memt, bktr->phys_base, 1385 bktr->obmemsz, 0, &bktr->memh); 1386 if (retval) { 1387 printf(": couldn't map memory\n"); 1388 return; 1389 } 1390 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(": couldn't map interrupt\n"); 1398 return; 1399 } 1400 intrstr = pci_intr_string(pa->pa_pc, ih); 1401 1402 bktr->ih = pci_intr_establish(pa->pa_pc, ih, IPL_VIDEO, 1403 bktr_intr, bktr, bktr->bktr_dev.dv_xname); 1404 if (bktr->ih == NULL) { 1405 printf(": couldn't establish interrupt"); 1406 if (intrstr != NULL) 1407 printf(" at %s", intrstr); 1408 printf("\n"); 1409 return; 1410 } 1411 1412 if (intrstr != NULL) 1413 printf(": %s\n", intrstr); 1414 #endif /* __OpenBSD__ */ 1415 1416 #if defined(__NetBSD__) 1417 struct pci_attach_args *pa = aux; 1418 pci_intr_handle_t ih; 1419 const char *intrstr; 1420 int retval; 1421 int unit; 1422 1423 bktr = (bktr_ptr_t)self; 1424 unit = bktr->bktr_dev.dv_unit; 1425 bktr->dmat = pa->pa_dmat; 1426 1427 printf("\n"); 1428 1429 /* 1430 * map memory 1431 */ 1432 retval = pci_mapreg_map(pa, PCI_MAPREG_START, 1433 PCI_MAPREG_TYPE_MEM 1434 | PCI_MAPREG_MEM_TYPE_32BIT, 0, 1435 &bktr->memt, &bktr->memh, NULL, 1436 &bktr->obmemsz); 1437 DPR(("pci_mapreg_map: memt %x, memh %x, size %x\n", 1438 bktr->memt, (u_int)bktr->memh, (u_int)bktr->obmemsz)); 1439 if (retval) { 1440 printf("%s: couldn't map memory\n", bktr_name(bktr)); 1441 return; 1442 } 1443 1444 /* 1445 * Disable the brooktree device 1446 */ 1447 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED); 1448 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED); 1449 1450 /* 1451 * map interrupt 1452 */ 1453 if (pci_intr_map(pa->pa_pc, pa->pa_intrtag, pa->pa_intrpin, 1454 pa->pa_intrline, &ih)) { 1455 printf("%s: couldn't map interrupt\n", 1456 bktr_name(bktr)); 1457 return; 1458 } 1459 intrstr = pci_intr_string(pa->pa_pc, ih); 1460 bktr->ih = pci_intr_establish(pa->pa_pc, ih, IPL_VIDEO, 1461 bktr_intr, bktr); 1462 if (bktr->ih == NULL) { 1463 printf("%s: couldn't establish interrupt", 1464 bktr_name(bktr)); 1465 if (intrstr != NULL) 1466 printf(" at %s", intrstr); 1467 printf("\n"); 1468 return; 1469 } 1470 if (intrstr != NULL) 1471 printf("%s: interrupting at %s\n", bktr_name(bktr), 1472 intrstr); 1473 #endif /* __NetBSD__ */ 1474 1475 /* 1476 * PCI latency timer. 32 is a good value for 4 bus mastering slots, if 1477 * you have more than four, then 16 would probably be a better value. 1478 */ 1479 #ifndef BROOKTREE_DEF_LATENCY_VALUE 1480 #define BROOKTREE_DEF_LATENCY_VALUE 10 1481 #endif 1482 latency = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_LATENCY_TIMER); 1483 latency = (latency >> 8) & 0xff; 1484 1485 if (!latency) { 1486 if (bootverbose) { 1487 printf("%s: PCI bus latency was 0 changing to %d", 1488 bktr_name(bktr), BROOKTREE_DEF_LATENCY_VALUE); 1489 } 1490 latency = BROOKTREE_DEF_LATENCY_VALUE; 1491 pci_conf_write(pa->pa_pc, pa->pa_tag, 1492 PCI_LATENCY_TIMER, latency<<8); 1493 } 1494 1495 1496 /* Enabled Bus Master 1497 XXX: check if all old DMA is stopped first (e.g. after warm 1498 boot) */ 1499 fun = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); 1500 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, 1501 fun | PCI_COMMAND_MASTER_ENABLE); 1502 1503 /* read the pci id and determine the card type */ 1504 fun = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_ID_REG); 1505 rev = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_CLASS_REG) & 0x000000ff; 1506 1507 common_bktr_attach(bktr, unit, fun, rev); 1508 } 1509 1510 1511 /* 1512 * Special Memory Allocation 1513 */ 1514 vm_offset_t 1515 get_bktr_mem(bktr, dmapp, size) 1516 bktr_ptr_t bktr; 1517 bus_dmamap_t *dmapp; 1518 unsigned int size; 1519 { 1520 bus_dma_tag_t dmat = bktr->dmat; 1521 bus_dma_segment_t seg; 1522 bus_size_t align; 1523 int rseg; 1524 caddr_t kva; 1525 1526 /* 1527 * Allocate a DMA area 1528 */ 1529 align = 1 << 24; 1530 if (bus_dmamem_alloc(dmat, size, align, 0, &seg, 1, 1531 &rseg, BUS_DMA_NOWAIT)) { 1532 align = PAGE_SIZE; 1533 if (bus_dmamem_alloc(dmat, size, align, 0, &seg, 1, 1534 &rseg, BUS_DMA_NOWAIT)) { 1535 printf("%s: Unable to dmamem_alloc of %d bytes\n", 1536 bktr_name(bktr), size); 1537 return 0; 1538 } 1539 } 1540 if (bus_dmamem_map(dmat, &seg, rseg, size, 1541 &kva, BUS_DMA_NOWAIT|BUS_DMA_COHERENT)) { 1542 printf("%s: Unable to dmamem_map of %d bytes\n", 1543 bktr_name(bktr), size); 1544 bus_dmamem_free(dmat, &seg, rseg); 1545 return 0; 1546 } 1547 #ifdef __OpenBSD__ 1548 bktr->dm_mapsize = size; 1549 #endif 1550 /* 1551 * Create and locd the DMA map for the DMA area 1552 */ 1553 if (bus_dmamap_create(dmat, size, 1, size, 0, BUS_DMA_NOWAIT, dmapp)) { 1554 printf("%s: Unable to dmamap_create of %d bytes\n", 1555 bktr_name(bktr), size); 1556 bus_dmamem_unmap(dmat, kva, size); 1557 bus_dmamem_free(dmat, &seg, rseg); 1558 return 0; 1559 } 1560 if (bus_dmamap_load(dmat, *dmapp, kva, size, NULL, BUS_DMA_NOWAIT)) { 1561 printf("%s: Unable to dmamap_load of %d bytes\n", 1562 bktr_name(bktr), size); 1563 bus_dmamem_unmap(dmat, kva, size); 1564 bus_dmamem_free(dmat, &seg, rseg); 1565 bus_dmamap_destroy(dmat, *dmapp); 1566 return 0; 1567 } 1568 return (vm_offset_t)kva; 1569 } 1570 1571 void 1572 free_bktr_mem(bktr, dmap, kva) 1573 bktr_ptr_t bktr; 1574 bus_dmamap_t dmap; 1575 vm_offset_t kva; 1576 { 1577 bus_dma_tag_t dmat = bktr->dmat; 1578 1579 #ifdef __NetBSD__ 1580 bus_dmamem_unmap(dmat, (caddr_t)kva, dmap->dm_mapsize); 1581 #else 1582 bus_dmamem_unmap(dmat, (caddr_t)kva, bktr->dm_mapsize); 1583 #endif 1584 bus_dmamem_free(dmat, dmap->dm_segs, 1); 1585 bus_dmamap_destroy(dmat, dmap); 1586 } 1587 1588 1589 /*--------------------------------------------------------- 1590 ** 1591 ** BrookTree 848 character device driver routines 1592 ** 1593 **--------------------------------------------------------- 1594 */ 1595 1596 1597 #define VIDEO_DEV 0x00 1598 #define TUNER_DEV 0x01 1599 #define VBI_DEV 0x02 1600 1601 #define UNIT(x) (minor((x) & 0x0f)) 1602 #define FUNCTION(x) (minor((x >> 4) & 0x0f)) 1603 1604 /* 1605 * 1606 */ 1607 int 1608 bktr_open(dev_t dev, int flags, int fmt, d_thread_t *td) 1609 { 1610 bktr_ptr_t bktr; 1611 int unit; 1612 1613 unit = UNIT(dev); 1614 1615 /* unit out of range */ 1616 if ((unit > bktr_cd.cd_ndevs) || (bktr_cd.cd_devs[unit] == NULL)) 1617 return(ENXIO); 1618 1619 bktr = bktr_cd.cd_devs[unit]; 1620 1621 if (!(bktr->flags & METEOR_INITALIZED)) /* device not found */ 1622 return(ENXIO); 1623 1624 switch (FUNCTION(dev)) { 1625 case VIDEO_DEV: 1626 return(video_open(bktr)); 1627 case TUNER_DEV: 1628 return(tuner_open(bktr)); 1629 case VBI_DEV: 1630 return(vbi_open(bktr)); 1631 } 1632 1633 return(ENXIO); 1634 } 1635 1636 1637 /* 1638 * 1639 */ 1640 int 1641 bktr_close(dev_t dev, int flags, int fmt, d_thread_t *td) 1642 { 1643 bktr_ptr_t bktr; 1644 int unit; 1645 1646 unit = UNIT(dev); 1647 1648 bktr = bktr_cd.cd_devs[unit]; 1649 1650 switch (FUNCTION(dev)) { 1651 case VIDEO_DEV: 1652 return(video_close(bktr)); 1653 case TUNER_DEV: 1654 return(tuner_close(bktr)); 1655 case VBI_DEV: 1656 return(vbi_close(bktr)); 1657 } 1658 1659 return(ENXIO); 1660 } 1661 1662 /* 1663 * 1664 */ 1665 int 1666 bktr_read(dev_t dev, struct uio *uio, int ioflag) 1667 { 1668 bktr_ptr_t bktr; 1669 int unit; 1670 1671 unit = UNIT(dev); 1672 1673 bktr = bktr_cd.cd_devs[unit]; 1674 1675 switch (FUNCTION(dev)) { 1676 case VIDEO_DEV: 1677 return(video_read(bktr, unit, dev, uio)); 1678 case VBI_DEV: 1679 return(vbi_read(bktr, uio, ioflag)); 1680 } 1681 1682 return(ENXIO); 1683 } 1684 1685 1686 /* 1687 * 1688 */ 1689 int 1690 bktr_write(dev_t dev, struct uio *uio, int ioflag) 1691 { 1692 /* operation not supported */ 1693 return(EOPNOTSUPP); 1694 } 1695 1696 /* 1697 * 1698 */ 1699 int 1700 bktr_ioctl(dev_t dev, ioctl_cmd_t cmd, caddr_t arg, int flag, d_thread_t *td) 1701 { 1702 bktr_ptr_t bktr; 1703 int unit; 1704 1705 unit = UNIT(dev); 1706 1707 bktr = bktr_cd.cd_devs[unit]; 1708 1709 if (bktr->bigbuf == 0) /* no frame buffer allocated (ioctl failed) */ 1710 return(ENOMEM); 1711 1712 switch (FUNCTION(dev)) { 1713 case VIDEO_DEV: 1714 return(video_ioctl(bktr, unit, cmd, arg, td)); 1715 case TUNER_DEV: 1716 return(tuner_ioctl(bktr, unit, cmd, arg, td)); 1717 } 1718 1719 return(ENXIO); 1720 } 1721 1722 /* 1723 * 1724 */ 1725 paddr_t 1726 bktr_mmap(dev_t dev, off_t offset, int nprot) 1727 { 1728 int unit; 1729 bktr_ptr_t bktr; 1730 1731 unit = UNIT(dev); 1732 1733 if (FUNCTION(dev) > 0) /* only allow mmap on /dev/bktr[n] */ 1734 return(-1); 1735 1736 bktr = bktr_cd.cd_devs[unit]; 1737 1738 if ((vaddr_t)offset < 0) 1739 return(-1); 1740 1741 if ((vaddr_t)offset >= bktr->alloc_pages * PAGE_SIZE) 1742 return(-1); 1743 1744 #ifdef __NetBSD__ 1745 return (bus_dmamem_mmap(bktr->dmat, bktr->dm_mem->dm_segs, 1, 1746 (vaddr_t)offset, nprot, BUS_DMA_WAITOK)); 1747 #else 1748 return(i386_btop(vtophys(bktr->bigbuf) + offset)); 1749 #endif 1750 } 1751 1752 #endif /* __NetBSD__ || __OpenBSD__ */ 1753