bktr_os.c revision 93165
1/* $FreeBSD: head/sys/dev/bktr/bktr_os.c 93165 2002-03-25 21:22:35Z nsouch $ */ 2 3/* 4 * This is part of the Driver for Video Capture Cards (Frame grabbers) 5 * and TV Tuner cards using the Brooktree Bt848, Bt848A, Bt849A, Bt878, Bt879 6 * chipset. 7 * Copyright Roger Hardiman and Amancio Hasty. 8 * 9 * bktr_os : This has all the Operating System dependant code, 10 * probe/attach and open/close/ioctl/read/mmap 11 * memory allocation 12 * PCI bus interfacing 13 * 14 * 15 */ 16 17/* 18 * 1. Redistributions of source code must retain the 19 * Copyright (c) 1997 Amancio Hasty, 1999 Roger Hardiman 20 * All rights reserved. 21 * 22 * Redistribution and use in source and binary forms, with or without 23 * modification, are permitted provided that the following conditions 24 * are met: 25 * 1. Redistributions of source code must retain the above copyright 26 * notice, this list of conditions and the following disclaimer. 27 * 2. Redistributions in binary form must reproduce the above copyright 28 * notice, this list of conditions and the following disclaimer in the 29 * documentation and/or other materials provided with the distribution. 30 * 3. All advertising materials mentioning features or use of this software 31 * must display the following acknowledgement: 32 * This product includes software developed by Amancio Hasty and 33 * Roger Hardiman 34 * 4. The name of the author may not be used to endorse or promote products 35 * derived from this software without specific prior written permission. 36 * 37 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 38 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 39 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 40 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 41 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 42 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 43 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 44 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 45 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 46 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 47 * POSSIBILITY OF SUCH DAMAGE. 48 */ 49 50 51#ifdef __FreeBSD__ 52#include "bktr.h" 53#endif /* __FreeBSD__ */ 54 55#include "opt_bktr.h" /* include any kernel config options */ 56 57#define FIFO_RISC_DISABLED 0 58#define ALL_INTS_DISABLED 0 59 60 61/*******************/ 62/* *** FreeBSD *** */ 63/*******************/ 64#ifdef __FreeBSD__ 65 66#include <sys/param.h> 67#include <sys/systm.h> 68#include <sys/conf.h> 69#include <sys/uio.h> 70#include <sys/kernel.h> 71#include <sys/signalvar.h> 72#include <sys/mman.h> 73#include <sys/poll.h> 74#if __FreeBSD_version >= 500014 75#include <sys/selinfo.h> 76#else 77#include <sys/select.h> 78#endif 79#include <sys/vnode.h> 80 81#include <vm/vm.h> 82#include <vm/vm_kern.h> 83#include <vm/pmap.h> 84#include <vm/vm_extern.h> 85 86#if (__FreeBSD_version >=400000) 87#include <sys/bus.h> /* used by smbus and newbus */ 88#endif 89 90#if (__FreeBSD_version >=300000) 91#include <machine/bus_memio.h> /* used by bus space */ 92#include <machine/bus.h> /* used by bus space and newbus */ 93#include <sys/bus.h> 94#endif 95 96#if (__FreeBSD_version >=400000) 97#include <sys/rman.h> /* used by newbus */ 98#include <machine/resource.h> /* used by newbus */ 99#endif 100 101#if (__FreeBSD_version < 500000) 102#include <machine/clock.h> /* for DELAY */ 103#endif 104 105#include <pci/pcivar.h> 106#include <pci/pcireg.h> 107 108#include <sys/sysctl.h> 109int bt848_card = -1; 110int bt848_tuner = -1; 111int bt848_reverse_mute = -1; 112int bt848_format = -1; 113int bt848_slow_msp_audio = -1; 114 115SYSCTL_NODE(_hw, OID_AUTO, bt848, CTLFLAG_RW, 0, "Bt848 Driver mgmt"); 116SYSCTL_INT(_hw_bt848, OID_AUTO, card, CTLFLAG_RW, &bt848_card, -1, ""); 117SYSCTL_INT(_hw_bt848, OID_AUTO, tuner, CTLFLAG_RW, &bt848_tuner, -1, ""); 118SYSCTL_INT(_hw_bt848, OID_AUTO, reverse_mute, CTLFLAG_RW, &bt848_reverse_mute, -1, ""); 119SYSCTL_INT(_hw_bt848, OID_AUTO, format, CTLFLAG_RW, &bt848_format, -1, ""); 120SYSCTL_INT(_hw_bt848, OID_AUTO, slow_msp_audio, CTLFLAG_RW, &bt848_slow_msp_audio, -1, ""); 121 122#if (__FreeBSD__ == 2) 123#define PCIR_REVID PCI_CLASS_REG 124#endif 125 126#endif /* end freebsd section */ 127 128 129 130/****************/ 131/* *** BSDI *** */ 132/****************/ 133#ifdef __bsdi__ 134#endif /* __bsdi__ */ 135 136 137/**************************/ 138/* *** OpenBSD/NetBSD *** */ 139/**************************/ 140#if defined(__NetBSD__) || defined(__OpenBSD__) 141 142#include <sys/param.h> 143#include <sys/systm.h> 144#include <sys/conf.h> 145#include <sys/uio.h> 146#include <sys/kernel.h> 147#include <sys/signalvar.h> 148#include <sys/mman.h> 149#include <sys/poll.h> 150#include <sys/select.h> 151#include <sys/vnode.h> 152 153#include <vm/vm.h> 154 155#ifndef __NetBSD__ 156#include <vm/vm_kern.h> 157#include <vm/pmap.h> 158#include <vm/vm_extern.h> 159#endif 160 161#include <sys/device.h> 162#include <dev/pci/pcivar.h> 163#include <dev/pci/pcireg.h> 164#include <dev/pci/pcidevs.h> 165 166#define BKTR_DEBUG 167#ifdef BKTR_DEBUG 168int bktr_debug = 0; 169#define DPR(x) (bktr_debug ? printf x : 0) 170#else 171#define DPR(x) 172#endif 173#endif /* __NetBSD__ || __OpenBSD__ */ 174 175 176#ifdef __NetBSD__ 177#include <dev/ic/bt8xx.h> /* NetBSD location for .h files */ 178#include <dev/pci/bktr/bktr_reg.h> 179#include <dev/pci/bktr/bktr_tuner.h> 180#include <dev/pci/bktr/bktr_card.h> 181#include <dev/pci/bktr/bktr_audio.h> 182#include <dev/pci/bktr/bktr_core.h> 183#include <dev/pci/bktr/bktr_os.h> 184#else /* Traditional location for .h files */ 185#include <machine/ioctl_meteor.h> 186#include <machine/ioctl_bt848.h> /* extensions to ioctl_meteor.h */ 187#include <dev/bktr/bktr_reg.h> 188#include <dev/bktr/bktr_tuner.h> 189#include <dev/bktr/bktr_card.h> 190#include <dev/bktr/bktr_audio.h> 191#include <dev/bktr/bktr_core.h> 192#include <dev/bktr/bktr_os.h> 193 194#if defined(BKTR_USE_FREEBSD_SMBUS) 195#include <dev/bktr/bktr_i2c.h> 196 197#include "iicbb_if.h" 198#include "smbus_if.h" 199#endif 200#endif 201 202 203/****************************/ 204/* *** FreeBSD 4.x code *** */ 205/****************************/ 206#if (__FreeBSD_version >= 400000) 207 208static int bktr_probe( device_t dev ); 209static int bktr_attach( device_t dev ); 210static int bktr_detach( device_t dev ); 211static int bktr_shutdown( device_t dev ); 212static void bktr_intr(void *arg) { common_bktr_intr(arg); } 213 214static device_method_t bktr_methods[] = { 215 /* Device interface */ 216 DEVMETHOD(device_probe, bktr_probe), 217 DEVMETHOD(device_attach, bktr_attach), 218 DEVMETHOD(device_detach, bktr_detach), 219 DEVMETHOD(device_shutdown, bktr_shutdown), 220 221#if defined(BKTR_USE_FREEBSD_SMBUS) 222 /* iicbb interface */ 223 DEVMETHOD(iicbb_callback, bti2c_iic_callback), 224 DEVMETHOD(iicbb_setsda, bti2c_iic_setsda), 225 DEVMETHOD(iicbb_setscl, bti2c_iic_setscl), 226 DEVMETHOD(iicbb_getsda, bti2c_iic_getsda), 227 DEVMETHOD(iicbb_getscl, bti2c_iic_getscl), 228 DEVMETHOD(iicbb_reset, bti2c_iic_reset), 229 230 /* smbus interface */ 231 DEVMETHOD(smbus_callback, bti2c_smb_callback), 232 DEVMETHOD(smbus_writeb, bti2c_smb_writeb), 233 DEVMETHOD(smbus_writew, bti2c_smb_writew), 234 DEVMETHOD(smbus_readb, bti2c_smb_readb), 235#endif 236 237 { 0, 0 } 238}; 239 240static driver_t bktr_driver = { 241 "bktr", 242 bktr_methods, 243 sizeof(struct bktr_softc), 244}; 245 246static devclass_t bktr_devclass; 247 248static d_open_t bktr_open; 249static d_close_t bktr_close; 250static d_read_t bktr_read; 251static d_write_t bktr_write; 252static d_ioctl_t bktr_ioctl; 253static d_mmap_t bktr_mmap; 254static d_poll_t bktr_poll; 255 256#define CDEV_MAJOR 92 257static struct cdevsw bktr_cdevsw = { 258 /* open */ bktr_open, 259 /* close */ bktr_close, 260 /* read */ bktr_read, 261 /* write */ bktr_write, 262 /* ioctl */ bktr_ioctl, 263 /* poll */ bktr_poll, 264 /* mmap */ bktr_mmap, 265 /* strategy */ nostrategy, 266 /* name */ "bktr", 267 /* maj */ CDEV_MAJOR, 268 /* dump */ nodump, 269 /* psize */ nopsize, 270 /* flags */ 0, 271}; 272 273DRIVER_MODULE(bktr, pci, bktr_driver, bktr_devclass, 0, 0); 274#if (__FreeBSD_version > 410000) 275MODULE_DEPEND(bktr, bktr_mem, 1,1,1); 276MODULE_VERSION(bktr, 1); 277#endif 278 279 280/* 281 * the boot time probe routine. 282 */ 283static int 284bktr_probe( device_t dev ) 285{ 286 unsigned int type = pci_get_devid(dev); 287 unsigned int rev = pci_get_revid(dev); 288 289 if (PCI_VENDOR(type) == PCI_VENDOR_BROOKTREE) 290 { 291 switch (PCI_PRODUCT(type)) { 292 case PCI_PRODUCT_BROOKTREE_BT848: 293 if (rev == 0x12) 294 device_set_desc(dev, "BrookTree 848A"); 295 else 296 device_set_desc(dev, "BrookTree 848"); 297 return 0; 298 case PCI_PRODUCT_BROOKTREE_BT849: 299 device_set_desc(dev, "BrookTree 849A"); 300 return 0; 301 case PCI_PRODUCT_BROOKTREE_BT878: 302 device_set_desc(dev, "BrookTree 878"); 303 return 0; 304 case PCI_PRODUCT_BROOKTREE_BT879: 305 device_set_desc(dev, "BrookTree 879"); 306 return 0; 307 } 308 }; 309 310 return ENXIO; 311} 312 313 314/* 315 * the attach routine. 316 */ 317static int 318bktr_attach( device_t dev ) 319{ 320 u_long latency; 321 u_long fun; 322 u_long val; 323 unsigned int rev; 324 unsigned int unit; 325 int error = 0; 326#ifdef BROOKTREE_IRQ 327 u_long old_irq, new_irq; 328#endif 329 330 struct bktr_softc *bktr = device_get_softc(dev); 331 332 unit = device_get_unit(dev); 333 334 /* build the device name for bktr_name() */ 335 snprintf(bktr->bktr_xname, sizeof(bktr->bktr_xname), "bktr%d",unit); 336 337 /* 338 * Enable bus mastering and Memory Mapped device 339 */ 340 val = pci_read_config(dev, PCIR_COMMAND, 4); 341 val |= (PCIM_CMD_MEMEN|PCIM_CMD_BUSMASTEREN); 342 pci_write_config(dev, PCIR_COMMAND, val, 4); 343 344 /* 345 * Map control/status registers. 346 */ 347 bktr->mem_rid = PCIR_MAPS; 348 bktr->res_mem = bus_alloc_resource(dev, SYS_RES_MEMORY, &bktr->mem_rid, 349 0, ~0, 1, RF_ACTIVE); 350 351 352 if (!bktr->res_mem) { 353 device_printf(dev, "could not map memory\n"); 354 error = ENXIO; 355 goto fail; 356 } 357 bktr->memt = rman_get_bustag(bktr->res_mem); 358 bktr->memh = rman_get_bushandle(bktr->res_mem); 359 360 361 /* 362 * Disable the brooktree device 363 */ 364 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED); 365 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED); 366 367 368#ifdef BROOKTREE_IRQ /* from the configuration file */ 369 old_irq = pci_conf_read(tag, PCI_INTERRUPT_REG); 370 pci_conf_write(tag, PCI_INTERRUPT_REG, BROOKTREE_IRQ); 371 new_irq = pci_conf_read(tag, PCI_INTERRUPT_REG); 372 printf("bktr%d: attach: irq changed from %d to %d\n", 373 unit, (old_irq & 0xff), (new_irq & 0xff)); 374#endif 375 376 /* 377 * Allocate our interrupt. 378 */ 379 bktr->irq_rid = 0; 380 bktr->res_irq = bus_alloc_resource(dev, SYS_RES_IRQ, &bktr->irq_rid, 381 0, ~0, 1, RF_SHAREABLE | RF_ACTIVE); 382 if (bktr->res_irq == NULL) { 383 device_printf(dev, "could not map interrupt\n"); 384 error = ENXIO; 385 goto fail; 386 } 387 388 error = bus_setup_intr(dev, bktr->res_irq, INTR_TYPE_TTY, 389 bktr_intr, bktr, &bktr->res_ih); 390 if (error) { 391 device_printf(dev, "could not setup irq\n"); 392 goto fail; 393 394 } 395 396 397 /* Update the Device Control Register */ 398 /* on Bt878 and Bt879 cards */ 399 fun = pci_read_config( dev, 0x40, 2); 400 fun = fun | 1; /* Enable writes to the sub-system vendor ID */ 401 402#if defined( BKTR_430_FX_MODE ) 403 if (bootverbose) printf("Using 430 FX chipset compatibilty mode\n"); 404 fun = fun | 2; /* Enable Intel 430 FX compatibility mode */ 405#endif 406 407#if defined( BKTR_SIS_VIA_MODE ) 408 if (bootverbose) printf("Using SiS/VIA chipset compatibilty mode\n"); 409 fun = fun | 4; /* Enable SiS/VIA compatibility mode (usefull for 410 OPTi chipset motherboards too */ 411#endif 412 pci_write_config(dev, 0x40, fun, 2); 413 414#if defined(BKTR_USE_FREEBSD_SMBUS) 415 if (bt848_i2c_attach(dev)) 416 printf("bktr%d: i2c_attach: can't attach\n", unit); 417#endif 418 419/* 420 * PCI latency timer. 32 is a good value for 4 bus mastering slots, if 421 * you have more than four, then 16 would probably be a better value. 422 */ 423#ifndef BROOKTREE_DEF_LATENCY_VALUE 424#define BROOKTREE_DEF_LATENCY_VALUE 10 425#endif 426 latency = pci_read_config(dev, PCI_LATENCY_TIMER, 4); 427 latency = (latency >> 8) & 0xff; 428 if ( bootverbose ) { 429 if (latency) 430 printf("brooktree%d: PCI bus latency is", unit); 431 else 432 printf("brooktree%d: PCI bus latency was 0 changing to", 433 unit); 434 } 435 if ( !latency ) { 436 latency = BROOKTREE_DEF_LATENCY_VALUE; 437 pci_write_config(dev, PCI_LATENCY_TIMER, latency<<8, 4); 438 } 439 if ( bootverbose ) { 440 printf(" %d.\n", (int) latency); 441 } 442 443 /* read the pci device id and revision id */ 444 fun = pci_get_devid(dev); 445 rev = pci_get_revid(dev); 446 447 /* call the common attach code */ 448 common_bktr_attach( bktr, unit, fun, rev ); 449 450 /* make the device entries */ 451 bktr->bktrdev = make_dev(&bktr_cdevsw, unit, 452 0, 0, 0444, "bktr%d", unit); 453 bktr->tunerdev= make_dev(&bktr_cdevsw, unit+16, 454 0, 0, 0444, "tuner%d", unit); 455 bktr->vbidev = make_dev(&bktr_cdevsw, unit+32, 456 0, 0, 0444, "vbi%d" , unit); 457 458 459 /* if this is unit 0 (/dev/bktr0, /dev/tuner0, /dev/vbi0) then make */ 460 /* alias entries to /dev/bktr /dev/tuner and /dev/vbi */ 461#if (__FreeBSD_version >=500000) 462 if (unit == 0) { 463 bktr->bktrdev_alias = make_dev_alias(bktr->bktrdev, "bktr"); 464 bktr->tunerdev_alias= make_dev_alias(bktr->tunerdev, "tuner"); 465 bktr->vbidev_alias = make_dev_alias(bktr->vbidev, "vbi"); 466 } 467#endif 468 469 return 0; 470 471fail: 472 if (bktr->res_irq) 473 bus_release_resource(dev, SYS_RES_IRQ, bktr->irq_rid, bktr->res_irq); 474 if (bktr->res_mem) 475 bus_release_resource(dev, SYS_RES_IRQ, bktr->mem_rid, bktr->res_mem); 476 return error; 477 478} 479 480/* 481 * the detach routine. 482 */ 483static int 484bktr_detach( device_t dev ) 485{ 486 unsigned int unit; 487 488 struct bktr_softc *bktr = device_get_softc(dev); 489 490 unit = device_get_unit(dev); 491 492 /* Disable the brooktree device */ 493 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED); 494 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED); 495 496#if defined(BKTR_USE_FREEBSD_SMBUS) 497 if (bt848_i2c_detach(dev)) 498 printf("bktr%d: i2c_attach: can't attach\n", unit); 499#endif 500 501 /* Note: We do not free memory for RISC programs, grab buffer, vbi buffers */ 502 /* The memory is retained by the bktr_mem module so we can unload and */ 503 /* then reload the main bktr driver module */ 504 505 /* Unregister the /dev/bktrN, tunerN and vbiN devices */ 506 destroy_dev(bktr->vbidev); 507 destroy_dev(bktr->tunerdev); 508 destroy_dev(bktr->bktrdev); 509 510 /* If this is unit 0, then destroy the alias entries too */ 511#if (__FreeBSD_version >=500000) 512 if (unit == 0) { 513 destroy_dev(bktr->vbidev_alias); 514 destroy_dev(bktr->tunerdev_alias); 515 destroy_dev(bktr->bktrdev_alias); 516 } 517#endif 518 519 /* 520 * Deallocate resources. 521 */ 522 bus_teardown_intr(dev, bktr->res_irq, bktr->res_ih); 523 bus_release_resource(dev, SYS_RES_IRQ, bktr->irq_rid, bktr->res_irq); 524 bus_release_resource(dev, SYS_RES_MEMORY, bktr->mem_rid, bktr->res_mem); 525 526 return 0; 527} 528 529/* 530 * the shutdown routine. 531 */ 532static int 533bktr_shutdown( device_t dev ) 534{ 535 struct bktr_softc *bktr = device_get_softc(dev); 536 537 /* Disable the brooktree device */ 538 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED); 539 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED); 540 541 return 0; 542} 543 544 545/* 546 * Special Memory Allocation 547 */ 548vm_offset_t 549get_bktr_mem( int unit, unsigned size ) 550{ 551 vm_offset_t addr = 0; 552 553 addr = vm_page_alloc_contig(size, 0, 0xffffffff, 1<<24); 554 if (addr == 0) 555 addr = vm_page_alloc_contig(size, 0, 0xffffffff, PAGE_SIZE); 556 if (addr == 0) { 557 printf("bktr%d: Unable to allocate %d bytes of memory.\n", 558 unit, size); 559 } 560 561 return( addr ); 562} 563 564 565/*--------------------------------------------------------- 566** 567** BrookTree 848 character device driver routines 568** 569**--------------------------------------------------------- 570*/ 571 572#define VIDEO_DEV 0x00 573#define TUNER_DEV 0x01 574#define VBI_DEV 0x02 575 576#define UNIT(x) ((x) & 0x0f) 577#define FUNCTION(x) (x >> 4) 578 579/* 580 * 581 */ 582int 583bktr_open( dev_t dev, int flags, int fmt, struct thread *td ) 584{ 585 bktr_ptr_t bktr; 586 int unit; 587 int result; 588 589 unit = UNIT( minor(dev) ); 590 591 /* Get the device data */ 592 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 593 if (bktr == NULL) { 594 /* the device is no longer valid/functioning */ 595 return (ENXIO); 596 } 597 598 if (!(bktr->flags & METEOR_INITALIZED)) /* device not found */ 599 return( ENXIO ); 600 601 /* Record that the device is now busy */ 602 device_busy(devclass_get_device(bktr_devclass, unit)); 603 604 605 if (bt848_card != -1) { 606 if ((bt848_card >> 8 == unit ) && 607 ( (bt848_card & 0xff) < Bt848_MAX_CARD )) { 608 if ( bktr->bt848_card != (bt848_card & 0xff) ) { 609 bktr->bt848_card = (bt848_card & 0xff); 610 probeCard(bktr, FALSE, unit); 611 } 612 } 613 } 614 615 if (bt848_tuner != -1) { 616 if ((bt848_tuner >> 8 == unit ) && 617 ( (bt848_tuner & 0xff) < Bt848_MAX_TUNER )) { 618 if ( bktr->bt848_tuner != (bt848_tuner & 0xff) ) { 619 bktr->bt848_tuner = (bt848_tuner & 0xff); 620 probeCard(bktr, FALSE, unit); 621 } 622 } 623 } 624 625 if (bt848_reverse_mute != -1) { 626 if ((bt848_reverse_mute >> 8) == unit ) { 627 bktr->reverse_mute = bt848_reverse_mute & 0xff; 628 } 629 } 630 631 if (bt848_slow_msp_audio != -1) { 632 if ((bt848_slow_msp_audio >> 8) == unit ) { 633 bktr->slow_msp_audio = (bt848_slow_msp_audio & 0xff); 634 } 635 } 636 637 switch ( FUNCTION( minor(dev) ) ) { 638 case VIDEO_DEV: 639 result = video_open( bktr ); 640 break; 641 case TUNER_DEV: 642 result = tuner_open( bktr ); 643 break; 644 case VBI_DEV: 645 result = vbi_open( bktr ); 646 break; 647 default: 648 result = ENXIO; 649 break; 650 } 651 652 /* If there was an error opening the device, undo the busy status */ 653 if (result != 0) 654 device_unbusy(devclass_get_device(bktr_devclass, unit)); 655 return( result ); 656} 657 658 659/* 660 * 661 */ 662int 663bktr_close( dev_t dev, int flags, int fmt, struct thread *td ) 664{ 665 bktr_ptr_t bktr; 666 int unit; 667 int result; 668 669 unit = UNIT( minor(dev) ); 670 671 /* Get the device data */ 672 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 673 if (bktr == NULL) { 674 /* the device is no longer valid/functioning */ 675 return (ENXIO); 676 } 677 678 switch ( FUNCTION( minor(dev) ) ) { 679 case VIDEO_DEV: 680 result = video_close( bktr ); 681 break; 682 case TUNER_DEV: 683 result = tuner_close( bktr ); 684 break; 685 case VBI_DEV: 686 result = vbi_close( bktr ); 687 break; 688 default: 689 return (ENXIO); 690 break; 691 } 692 693 device_unbusy(devclass_get_device(bktr_devclass, unit)); 694 return( result ); 695} 696 697 698/* 699 * 700 */ 701int 702bktr_read( dev_t dev, struct uio *uio, int ioflag ) 703{ 704 bktr_ptr_t bktr; 705 int unit; 706 707 unit = UNIT(minor(dev)); 708 709 /* Get the device data */ 710 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 711 if (bktr == NULL) { 712 /* the device is no longer valid/functioning */ 713 return (ENXIO); 714 } 715 716 switch ( FUNCTION( minor(dev) ) ) { 717 case VIDEO_DEV: 718 return( video_read( bktr, unit, dev, uio ) ); 719 case VBI_DEV: 720 return( vbi_read( bktr, uio, ioflag ) ); 721 } 722 return( ENXIO ); 723} 724 725 726/* 727 * 728 */ 729int 730bktr_write( dev_t dev, struct uio *uio, int ioflag ) 731{ 732 return( EINVAL ); /* XXX or ENXIO ? */ 733} 734 735 736/* 737 * 738 */ 739int 740bktr_ioctl( dev_t dev, ioctl_cmd_t cmd, caddr_t arg, int flag, struct thread *td ) 741{ 742 bktr_ptr_t bktr; 743 int unit; 744 745 unit = UNIT(minor(dev)); 746 747 /* Get the device data */ 748 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 749 if (bktr == NULL) { 750 /* the device is no longer valid/functioning */ 751 return (ENXIO); 752 } 753 754 if (bktr->bigbuf == 0) /* no frame buffer allocated (ioctl failed) */ 755 return( ENOMEM ); 756 757 switch ( FUNCTION( minor(dev) ) ) { 758 case VIDEO_DEV: 759 return( video_ioctl( bktr, unit, cmd, arg, td ) ); 760 case TUNER_DEV: 761 return( tuner_ioctl( bktr, unit, cmd, arg, td ) ); 762 } 763 764 return( ENXIO ); 765} 766 767 768/* 769 * 770 */ 771int 772bktr_mmap( dev_t dev, vm_offset_t offset, int nprot ) 773{ 774 int unit; 775 bktr_ptr_t bktr; 776 777 unit = UNIT(minor(dev)); 778 779 if (FUNCTION(minor(dev)) > 0) /* only allow mmap on /dev/bktr[n] */ 780 return( -1 ); 781 782 /* Get the device data */ 783 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 784 if (bktr == NULL) { 785 /* the device is no longer valid/functioning */ 786 return (ENXIO); 787 } 788 789 if (nprot & PROT_EXEC) 790 return( -1 ); 791 792 if (offset < 0) 793 return( -1 ); 794 795 if (offset >= bktr->alloc_pages * PAGE_SIZE) 796 return( -1 ); 797 798 return( atop(vtophys(bktr->bigbuf) + offset) ); 799} 800 801int bktr_poll( dev_t dev, int events, struct thread *td) 802{ 803 int unit; 804 bktr_ptr_t bktr; 805 int revents = 0; 806 DECLARE_INTR_MASK(s); 807 808 unit = UNIT(minor(dev)); 809 810 /* Get the device data */ 811 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 812 if (bktr == NULL) { 813 /* the device is no longer valid/functioning */ 814 return (ENXIO); 815 } 816 817 DISABLE_INTR(s); 818 819 if (events & (POLLIN | POLLRDNORM)) { 820 821 switch ( FUNCTION( minor(dev) ) ) { 822 case VBI_DEV: 823 if(bktr->vbisize == 0) 824 selrecord(td, &bktr->vbi_select); 825 else 826 revents |= events & (POLLIN | POLLRDNORM); 827 break; 828 } 829 } 830 831 ENABLE_INTR(s); 832 833 return (revents); 834} 835 836#endif /* FreeBSD 4.x specific kernel interface routines */ 837 838/**********************************/ 839/* *** FreeBSD 2.2.x and 3.x *** */ 840/**********************************/ 841 842#if ((__FreeBSD__ == 2) || (__FreeBSD__ == 3)) 843 844static bktr_reg_t brooktree[ NBKTR ]; 845 846static const char* bktr_probe( pcici_t tag, pcidi_t type ); 847static void bktr_attach( pcici_t tag, int unit ); 848static void bktr_intr(void *arg) { common_bktr_intr(arg); } 849 850static u_long bktr_count; 851 852static struct pci_device bktr_device = { 853 "bktr", 854 bktr_probe, 855 bktr_attach, 856 &bktr_count 857}; 858 859DATA_SET (pcidevice_set, bktr_device); 860 861static d_open_t bktr_open; 862static d_close_t bktr_close; 863static d_read_t bktr_read; 864static d_write_t bktr_write; 865static d_ioctl_t bktr_ioctl; 866static d_mmap_t bktr_mmap; 867static d_poll_t bktr_poll; 868 869#define CDEV_MAJOR 92 870static struct cdevsw bktr_cdevsw = 871{ 872 bktr_open, bktr_close, bktr_read, bktr_write, 873 bktr_ioctl, nostop, nullreset, nodevtotty, 874 bktr_poll, bktr_mmap, NULL, "bktr", 875 NULL, -1 876}; 877 878/* 879 * the boot time probe routine. 880 */ 881static const char* 882bktr_probe( pcici_t tag, pcidi_t type ) 883{ 884 unsigned int rev = pci_conf_read( tag, PCIR_REVID) & 0x000000ff; 885 886 if (PCI_VENDOR(type) == PCI_VENDOR_BROOKTREE) 887 { 888 switch (PCI_PRODUCT(type)) { 889 case PCI_PRODUCT_BROOKTREE_BT848: 890 if (rev == 0x12) return("BrookTree 848A"); 891 else return("BrookTree 848"); 892 case PCI_PRODUCT_BROOKTREE_BT849: 893 return("BrookTree 849A"); 894 case PCI_PRODUCT_BROOKTREE_BT878: 895 return("BrookTree 878"); 896 case PCI_PRODUCT_BROOKTREE_BT879: 897 return("BrookTree 879"); 898 } 899 }; 900 901 return ((char *)0); 902} 903 904/* 905 * the attach routine. 906 */ 907static void 908bktr_attach( pcici_t tag, int unit ) 909{ 910 bktr_ptr_t bktr; 911 u_long latency; 912 u_long fun; 913 unsigned int rev; 914 unsigned long base; 915#ifdef BROOKTREE_IRQ 916 u_long old_irq, new_irq; 917#endif 918 919 bktr = &brooktree[unit]; 920 921 if (unit >= NBKTR) { 922 printf("brooktree%d: attach: only %d units configured.\n", 923 unit, NBKTR); 924 printf("brooktree%d: attach: invalid unit number.\n", unit); 925 return; 926 } 927 928 /* build the device name for bktr_name() */ 929 snprintf(bktr->bktr_xname, sizeof(bktr->bktr_xname), "bktr%d",unit); 930 931 /* Enable Memory Mapping */ 932 fun = pci_conf_read(tag, PCI_COMMAND_STATUS_REG); 933 pci_conf_write(tag, PCI_COMMAND_STATUS_REG, fun | 2); 934 935 /* Enable Bus Mastering */ 936 fun = pci_conf_read(tag, PCI_COMMAND_STATUS_REG); 937 pci_conf_write(tag, PCI_COMMAND_STATUS_REG, fun | 4); 938 939 bktr->tag = tag; 940 941 942 /* 943 * Map control/status registers 944 */ 945 pci_map_mem( tag, PCI_MAP_REG_START, (vm_offset_t *) &base, 946 &bktr->phys_base ); 947#if (__FreeBSD_version >= 300000) 948 bktr->memt = I386_BUS_SPACE_MEM; /* XXX should use proper bus space */ 949 bktr->memh = (bus_space_handle_t)base; /* XXX functions here */ 950#endif 951 952 /* 953 * Disable the brooktree device 954 */ 955 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED); 956 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED); 957 958#ifdef BROOKTREE_IRQ /* from the configuration file */ 959 old_irq = pci_conf_read(tag, PCI_INTERRUPT_REG); 960 pci_conf_write(tag, PCI_INTERRUPT_REG, BROOKTREE_IRQ); 961 new_irq = pci_conf_read(tag, PCI_INTERRUPT_REG); 962 printf("bktr%d: attach: irq changed from %d to %d\n", 963 unit, (old_irq & 0xff), (new_irq & 0xff)); 964#endif 965 966 /* 967 * setup the interrupt handling routine 968 */ 969 pci_map_int(tag, bktr_intr, (void*) bktr, &tty_imask); 970 971 972 /* Update the Device Control Register */ 973 /* on Bt878 and Bt879 cards */ 974 fun = pci_conf_read(tag, 0x40); 975 fun = fun | 1; /* Enable writes to the sub-system vendor ID */ 976 977#if defined( BKTR_430_FX_MODE ) 978 if (bootverbose) printf("Using 430 FX chipset compatibilty mode\n"); 979 fun = fun | 2; /* Enable Intel 430 FX compatibility mode */ 980#endif 981 982#if defined( BKTR_SIS_VIA_MODE ) 983 if (bootverbose) printf("Using SiS/VIA chipset compatibilty mode\n"); 984 fun = fun | 4; /* Enable SiS/VIA compatibility mode (usefull for 985 OPTi chipset motherboards too */ 986#endif 987 pci_conf_write(tag, 0x40, fun); 988 989/* 990 * PCI latency timer. 32 is a good value for 4 bus mastering slots, if 991 * you have more than four, then 16 would probably be a better value. 992 */ 993#ifndef BROOKTREE_DEF_LATENCY_VALUE 994#define BROOKTREE_DEF_LATENCY_VALUE 10 995#endif 996 latency = pci_conf_read(tag, PCI_LATENCY_TIMER); 997 latency = (latency >> 8) & 0xff; 998 if ( bootverbose ) { 999 if (latency) 1000 printf("brooktree%d: PCI bus latency is", unit); 1001 else 1002 printf("brooktree%d: PCI bus latency was 0 changing to", 1003 unit); 1004 } 1005 if ( !latency ) { 1006 latency = BROOKTREE_DEF_LATENCY_VALUE; 1007 pci_conf_write(tag, PCI_LATENCY_TIMER, latency<<8); 1008 } 1009 if ( bootverbose ) { 1010 printf(" %d.\n", (int) latency); 1011 } 1012 1013 1014 /* read the pci device id and revision id */ 1015 fun = pci_conf_read(tag, PCI_ID_REG); 1016 rev = pci_conf_read(tag, PCIR_REVID) & 0x000000ff; 1017 1018 /* call the common attach code */ 1019 common_bktr_attach( bktr, unit, fun, rev ); 1020 1021} 1022 1023 1024/* 1025 * Special Memory Allocation 1026 */ 1027vm_offset_t 1028get_bktr_mem( int unit, unsigned size ) 1029{ 1030 vm_offset_t addr = 0; 1031 1032 addr = vm_page_alloc_contig(size, 0x100000, 0xffffffff, 1<<24); 1033 if (addr == 0) 1034 addr = vm_page_alloc_contig(size, 0x100000, 0xffffffff, 1035 PAGE_SIZE); 1036 if (addr == 0) { 1037 printf("bktr%d: Unable to allocate %d bytes of memory.\n", 1038 unit, size); 1039 } 1040 1041 return( addr ); 1042} 1043 1044/*--------------------------------------------------------- 1045** 1046** BrookTree 848 character device driver routines 1047** 1048**--------------------------------------------------------- 1049*/ 1050 1051 1052#define VIDEO_DEV 0x00 1053#define TUNER_DEV 0x01 1054#define VBI_DEV 0x02 1055 1056#define UNIT(x) ((x) & 0x0f) 1057#define FUNCTION(x) ((x >> 4) & 0x0f) 1058 1059 1060/* 1061 * 1062 */ 1063int 1064bktr_open( dev_t dev, int flags, int fmt, struct thread *td ) 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 if (!(bktr->flags & METEOR_INITALIZED)) /* device not found */ 1076 return( ENXIO ); 1077 1078 1079 if (bt848_card != -1) { 1080 if ((bt848_card >> 8 == unit ) && 1081 ( (bt848_card & 0xff) < Bt848_MAX_CARD )) { 1082 if ( bktr->bt848_card != (bt848_card & 0xff) ) { 1083 bktr->bt848_card = (bt848_card & 0xff); 1084 probeCard(bktr, FALSE, unit); 1085 } 1086 } 1087 } 1088 1089 if (bt848_tuner != -1) { 1090 if ((bt848_tuner >> 8 == unit ) && 1091 ( (bt848_tuner & 0xff) < Bt848_MAX_TUNER )) { 1092 if ( bktr->bt848_tuner != (bt848_tuner & 0xff) ) { 1093 bktr->bt848_tuner = (bt848_tuner & 0xff); 1094 probeCard(bktr, FALSE, unit); 1095 } 1096 } 1097 } 1098 1099 if (bt848_reverse_mute != -1) { 1100 if ((bt848_reverse_mute >> 8) == unit ) { 1101 bktr->reverse_mute = bt848_reverse_mute & 0xff; 1102 } 1103 } 1104 1105 if (bt848_slow_msp_audio != -1) { 1106 if ((bt848_slow_msp_audio >> 8) == unit ) { 1107 bktr->slow_msp_audio = (bt848_slow_msp_audio & 0xff); 1108 } 1109 } 1110 1111 switch ( FUNCTION( minor(dev) ) ) { 1112 case VIDEO_DEV: 1113 return( video_open( bktr ) ); 1114 case TUNER_DEV: 1115 return( tuner_open( bktr ) ); 1116 case VBI_DEV: 1117 return( vbi_open( bktr ) ); 1118 } 1119 return( ENXIO ); 1120} 1121 1122 1123/* 1124 * 1125 */ 1126int 1127bktr_close( dev_t dev, int flags, int fmt, struct thread *td ) 1128{ 1129 bktr_ptr_t bktr; 1130 int unit; 1131 1132 unit = UNIT( minor(dev) ); 1133 if (unit >= NBKTR) /* unit out of range */ 1134 return( ENXIO ); 1135 1136 bktr = &(brooktree[ unit ]); 1137 1138 switch ( FUNCTION( minor(dev) ) ) { 1139 case VIDEO_DEV: 1140 return( video_close( bktr ) ); 1141 case TUNER_DEV: 1142 return( tuner_close( bktr ) ); 1143 case VBI_DEV: 1144 return( vbi_close( bktr ) ); 1145 } 1146 1147 return( ENXIO ); 1148} 1149 1150/* 1151 * 1152 */ 1153int 1154bktr_read( dev_t dev, struct uio *uio, int ioflag ) 1155{ 1156 bktr_ptr_t bktr; 1157 int unit; 1158 1159 unit = UNIT(minor(dev)); 1160 if (unit >= NBKTR) /* unit out of range */ 1161 return( ENXIO ); 1162 1163 bktr = &(brooktree[unit]); 1164 1165 switch ( FUNCTION( minor(dev) ) ) { 1166 case VIDEO_DEV: 1167 return( video_read( bktr, unit, dev, uio ) ); 1168 case VBI_DEV: 1169 return( vbi_read( bktr, uio, ioflag ) ); 1170 } 1171 return( ENXIO ); 1172} 1173 1174 1175/* 1176 * 1177 */ 1178int 1179bktr_write( dev_t dev, struct uio *uio, int ioflag ) 1180{ 1181 return( EINVAL ); /* XXX or ENXIO ? */ 1182} 1183 1184/* 1185 * 1186 */ 1187int 1188bktr_ioctl( dev_t dev, ioctl_cmd_t cmd, caddr_t arg, int flag, struct thread *td ) 1189{ 1190 bktr_ptr_t bktr; 1191 int unit; 1192 1193 unit = UNIT(minor(dev)); 1194 if (unit >= NBKTR) /* unit out of range */ 1195 return( ENXIO ); 1196 1197 bktr = &(brooktree[ unit ]); 1198 1199 if (bktr->bigbuf == 0) /* no frame buffer allocated (ioctl failed) */ 1200 return( ENOMEM ); 1201 1202 switch ( FUNCTION( minor(dev) ) ) { 1203 case VIDEO_DEV: 1204 return( video_ioctl( bktr, unit, cmd, arg, td ) ); 1205 case TUNER_DEV: 1206 return( tuner_ioctl( bktr, unit, cmd, arg, td ) ); 1207 } 1208 1209 return( ENXIO ); 1210} 1211 1212/* 1213 * bktr_mmap. 1214 * Note: 2.2.5/2.2.6/2.2.7/3.0 users must manually 1215 * edit the line below and change "vm_offset_t" to "int" 1216 */ 1217int bktr_mmap( dev_t dev, vm_offset_t offset, int nprot ) 1218 1219{ 1220 int unit; 1221 bktr_ptr_t bktr; 1222 1223 unit = UNIT(minor(dev)); 1224 1225 if (unit >= NBKTR || FUNCTION(minor(dev)) > 0) 1226 return( -1 ); 1227 1228 bktr = &(brooktree[ unit ]); 1229 1230 if (nprot & PROT_EXEC) 1231 return( -1 ); 1232 1233 if (offset < 0) 1234 return( -1 ); 1235 1236 if (offset >= bktr->alloc_pages * PAGE_SIZE) 1237 return( -1 ); 1238 1239 return( i386_btop(vtophys(bktr->bigbuf) + offset) ); 1240} 1241 1242int bktr_poll( dev_t dev, int events, struct thread *td) 1243{ 1244 int unit; 1245 bktr_ptr_t bktr; 1246 int revents = 0; 1247 1248 unit = UNIT(minor(dev)); 1249 1250 if (unit >= NBKTR) 1251 return( -1 ); 1252 1253 bktr = &(brooktree[ unit ]); 1254 1255 disable_intr(); 1256 1257 if (events & (POLLIN | POLLRDNORM)) { 1258 1259 switch ( FUNCTION( minor(dev) ) ) { 1260 case VBI_DEV: 1261 if(bktr->vbisize == 0) 1262 selrecord(p, &bktr->vbi_select); 1263 else 1264 revents |= events & (POLLIN | POLLRDNORM); 1265 break; 1266 } 1267 } 1268 1269 enable_intr(); 1270 1271 return (revents); 1272} 1273 1274 1275#endif /* FreeBSD 2.2.x and 3.x specific kernel interface routines */ 1276 1277 1278/*****************/ 1279/* *** BSDI *** */ 1280/*****************/ 1281 1282#if defined(__bsdi__) 1283#endif /* __bsdi__ BSDI specific kernel interface routines */ 1284 1285 1286/*****************************/ 1287/* *** OpenBSD / NetBSD *** */ 1288/*****************************/ 1289#if defined(__NetBSD__) || defined(__OpenBSD__) 1290 1291#define IPL_VIDEO IPL_BIO /* XXX */ 1292 1293static int bktr_intr(void *arg) { return common_bktr_intr(arg); } 1294 1295#define bktr_open bktropen 1296#define bktr_close bktrclose 1297#define bktr_read bktrread 1298#define bktr_write bktrwrite 1299#define bktr_ioctl bktrioctl 1300#define bktr_mmap bktrmmap 1301 1302vm_offset_t vm_page_alloc_contig(vm_offset_t, vm_offset_t, 1303 vm_offset_t, vm_offset_t); 1304 1305#if defined(__OpenBSD__) 1306static int bktr_probe(struct device *, void *, void *); 1307#else 1308static int bktr_probe(struct device *, struct cfdata *, void *); 1309#endif 1310static void bktr_attach(struct device *, struct device *, void *); 1311 1312struct cfattach bktr_ca = { 1313 sizeof(struct bktr_softc), bktr_probe, bktr_attach 1314}; 1315 1316#if defined(__NetBSD__) 1317extern struct cfdriver bktr_cd; 1318#else 1319struct cfdriver bktr_cd = { 1320 NULL, "bktr", DV_DULL 1321}; 1322#endif 1323 1324int 1325bktr_probe(parent, match, aux) 1326 struct device *parent; 1327#if defined(__OpenBSD__) 1328 void *match; 1329#else 1330 struct cfdata *match; 1331#endif 1332 void *aux; 1333{ 1334 struct pci_attach_args *pa = aux; 1335 1336 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_BROOKTREE && 1337 (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT848 || 1338 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT849 || 1339 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT878 || 1340 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT879)) 1341 return 1; 1342 1343 return 0; 1344} 1345 1346 1347/* 1348 * the attach routine. 1349 */ 1350static void 1351bktr_attach(struct device *parent, struct device *self, void *aux) 1352{ 1353 bktr_ptr_t bktr; 1354 u_long latency; 1355 u_long fun; 1356 unsigned int rev; 1357 1358#if defined(__OpenBSD__) 1359 struct pci_attach_args *pa = aux; 1360 pci_chipset_tag_t pc = pa->pa_pc; 1361 1362 pci_intr_handle_t ih; 1363 const char *intrstr; 1364 int retval; 1365 int unit; 1366 1367 bktr = (bktr_ptr_t)self; 1368 unit = bktr->bktr_dev.dv_unit; 1369 1370 bktr->pc = pa->pa_pc; 1371 bktr->tag = pa->pa_tag; 1372 bktr->dmat = pa->pa_dmat; 1373 1374 /* 1375 * map memory 1376 */ 1377 bktr->memt = pa->pa_memt; 1378 retval = pci_mem_find(pc, pa->pa_tag, PCI_MAPREG_START, 1379 &bktr->phys_base, &bktr->obmemsz, NULL); 1380 if (!retval) 1381 retval = bus_space_map(pa->pa_memt, bktr->phys_base, 1382 bktr->obmemsz, 0, &bktr->memh); 1383 if (retval) { 1384 printf(": couldn't map memory\n"); 1385 return; 1386 } 1387 1388 1389 /* 1390 * map interrupt 1391 */ 1392 if (pci_intr_map(pa->pa_pc, pa->pa_intrtag, pa->pa_intrpin, 1393 pa->pa_intrline, &ih)) { 1394 printf(": couldn't map interrupt\n"); 1395 return; 1396 } 1397 intrstr = pci_intr_string(pa->pa_pc, ih); 1398 1399 bktr->ih = pci_intr_establish(pa->pa_pc, ih, IPL_VIDEO, 1400 bktr_intr, bktr, bktr->bktr_dev.dv_xname); 1401 if (bktr->ih == NULL) { 1402 printf(": couldn't establish interrupt"); 1403 if (intrstr != NULL) 1404 printf(" at %s", intrstr); 1405 printf("\n"); 1406 return; 1407 } 1408 1409 if (intrstr != NULL) 1410 printf(": %s\n", intrstr); 1411#endif /* __OpenBSD__ */ 1412 1413#if defined(__NetBSD__) 1414 struct pci_attach_args *pa = aux; 1415 pci_intr_handle_t ih; 1416 const char *intrstr; 1417 int retval; 1418 int unit; 1419 1420 bktr = (bktr_ptr_t)self; 1421 unit = bktr->bktr_dev.dv_unit; 1422 bktr->dmat = pa->pa_dmat; 1423 1424 printf("\n"); 1425 1426 /* 1427 * map memory 1428 */ 1429 retval = pci_mapreg_map(pa, PCI_MAPREG_START, 1430 PCI_MAPREG_TYPE_MEM 1431 | PCI_MAPREG_MEM_TYPE_32BIT, 0, 1432 &bktr->memt, &bktr->memh, NULL, 1433 &bktr->obmemsz); 1434 DPR(("pci_mapreg_map: memt %x, memh %x, size %x\n", 1435 bktr->memt, (u_int)bktr->memh, (u_int)bktr->obmemsz)); 1436 if (retval) { 1437 printf("%s: couldn't map memory\n", bktr_name(bktr)); 1438 return; 1439 } 1440 1441 /* 1442 * Disable the brooktree device 1443 */ 1444 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED); 1445 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED); 1446 1447 /* 1448 * map interrupt 1449 */ 1450 if (pci_intr_map(pa->pa_pc, pa->pa_intrtag, pa->pa_intrpin, 1451 pa->pa_intrline, &ih)) { 1452 printf("%s: couldn't map interrupt\n", 1453 bktr_name(bktr)); 1454 return; 1455 } 1456 intrstr = pci_intr_string(pa->pa_pc, ih); 1457 bktr->ih = pci_intr_establish(pa->pa_pc, ih, IPL_VIDEO, 1458 bktr_intr, bktr); 1459 if (bktr->ih == NULL) { 1460 printf("%s: couldn't establish interrupt", 1461 bktr_name(bktr)); 1462 if (intrstr != NULL) 1463 printf(" at %s", intrstr); 1464 printf("\n"); 1465 return; 1466 } 1467 if (intrstr != NULL) 1468 printf("%s: interrupting at %s\n", bktr_name(bktr), 1469 intrstr); 1470#endif /* __NetBSD__ */ 1471 1472/* 1473 * PCI latency timer. 32 is a good value for 4 bus mastering slots, if 1474 * you have more than four, then 16 would probably be a better value. 1475 */ 1476#ifndef BROOKTREE_DEF_LATENCY_VALUE 1477#define BROOKTREE_DEF_LATENCY_VALUE 10 1478#endif 1479 latency = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_LATENCY_TIMER); 1480 latency = (latency >> 8) & 0xff; 1481 1482 if (!latency) { 1483 if (bootverbose) { 1484 printf("%s: PCI bus latency was 0 changing to %d", 1485 bktr_name(bktr), BROOKTREE_DEF_LATENCY_VALUE); 1486 } 1487 latency = BROOKTREE_DEF_LATENCY_VALUE; 1488 pci_conf_write(pa->pa_pc, pa->pa_tag, 1489 PCI_LATENCY_TIMER, latency<<8); 1490 } 1491 1492 1493 /* Enabled Bus Master 1494 XXX: check if all old DMA is stopped first (e.g. after warm 1495 boot) */ 1496 fun = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); 1497 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, 1498 fun | PCI_COMMAND_MASTER_ENABLE); 1499 1500 /* read the pci id and determine the card type */ 1501 fun = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_ID_REG); 1502 rev = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_CLASS_REG) & 0x000000ff; 1503 1504 common_bktr_attach(bktr, unit, fun, rev); 1505} 1506 1507 1508/* 1509 * Special Memory Allocation 1510 */ 1511vm_offset_t 1512get_bktr_mem(bktr, dmapp, size) 1513 bktr_ptr_t bktr; 1514 bus_dmamap_t *dmapp; 1515 unsigned int size; 1516{ 1517 bus_dma_tag_t dmat = bktr->dmat; 1518 bus_dma_segment_t seg; 1519 bus_size_t align; 1520 int rseg; 1521 caddr_t kva; 1522 1523 /* 1524 * Allocate a DMA area 1525 */ 1526 align = 1 << 24; 1527 if (bus_dmamem_alloc(dmat, size, align, 0, &seg, 1, 1528 &rseg, BUS_DMA_NOWAIT)) { 1529 align = PAGE_SIZE; 1530 if (bus_dmamem_alloc(dmat, size, align, 0, &seg, 1, 1531 &rseg, BUS_DMA_NOWAIT)) { 1532 printf("%s: Unable to dmamem_alloc of %d bytes\n", 1533 bktr_name(bktr), size); 1534 return 0; 1535 } 1536 } 1537 if (bus_dmamem_map(dmat, &seg, rseg, size, 1538 &kva, BUS_DMA_NOWAIT|BUS_DMA_COHERENT)) { 1539 printf("%s: Unable to dmamem_map of %d bytes\n", 1540 bktr_name(bktr), size); 1541 bus_dmamem_free(dmat, &seg, rseg); 1542 return 0; 1543 } 1544#ifdef __OpenBSD__ 1545 bktr->dm_mapsize = size; 1546#endif 1547 /* 1548 * Create and locd the DMA map for the DMA area 1549 */ 1550 if (bus_dmamap_create(dmat, size, 1, size, 0, BUS_DMA_NOWAIT, dmapp)) { 1551 printf("%s: Unable to dmamap_create of %d bytes\n", 1552 bktr_name(bktr), size); 1553 bus_dmamem_unmap(dmat, kva, size); 1554 bus_dmamem_free(dmat, &seg, rseg); 1555 return 0; 1556 } 1557 if (bus_dmamap_load(dmat, *dmapp, kva, size, NULL, BUS_DMA_NOWAIT)) { 1558 printf("%s: Unable to dmamap_load of %d bytes\n", 1559 bktr_name(bktr), size); 1560 bus_dmamem_unmap(dmat, kva, size); 1561 bus_dmamem_free(dmat, &seg, rseg); 1562 bus_dmamap_destroy(dmat, *dmapp); 1563 return 0; 1564 } 1565 return (vm_offset_t)kva; 1566} 1567 1568void 1569free_bktr_mem(bktr, dmap, kva) 1570 bktr_ptr_t bktr; 1571 bus_dmamap_t dmap; 1572 vm_offset_t kva; 1573{ 1574 bus_dma_tag_t dmat = bktr->dmat; 1575 1576#ifdef __NetBSD__ 1577 bus_dmamem_unmap(dmat, (caddr_t)kva, dmap->dm_mapsize); 1578#else 1579 bus_dmamem_unmap(dmat, (caddr_t)kva, bktr->dm_mapsize); 1580#endif 1581 bus_dmamem_free(dmat, dmap->dm_segs, 1); 1582 bus_dmamap_destroy(dmat, dmap); 1583} 1584 1585 1586/*--------------------------------------------------------- 1587** 1588** BrookTree 848 character device driver routines 1589** 1590**--------------------------------------------------------- 1591*/ 1592 1593 1594#define VIDEO_DEV 0x00 1595#define TUNER_DEV 0x01 1596#define VBI_DEV 0x02 1597 1598#define UNIT(x) (minor((x) & 0x0f)) 1599#define FUNCTION(x) (minor((x >> 4) & 0x0f)) 1600 1601/* 1602 * 1603 */ 1604int 1605bktr_open(dev_t dev, int flags, int fmt, struct thread *td) 1606{ 1607 bktr_ptr_t bktr; 1608 int unit; 1609 1610 unit = UNIT(dev); 1611 1612 /* unit out of range */ 1613 if ((unit > bktr_cd.cd_ndevs) || (bktr_cd.cd_devs[unit] == NULL)) 1614 return(ENXIO); 1615 1616 bktr = bktr_cd.cd_devs[unit]; 1617 1618 if (!(bktr->flags & METEOR_INITALIZED)) /* device not found */ 1619 return(ENXIO); 1620 1621 switch (FUNCTION(dev)) { 1622 case VIDEO_DEV: 1623 return(video_open(bktr)); 1624 case TUNER_DEV: 1625 return(tuner_open(bktr)); 1626 case VBI_DEV: 1627 return(vbi_open(bktr)); 1628 } 1629 1630 return(ENXIO); 1631} 1632 1633 1634/* 1635 * 1636 */ 1637int 1638bktr_close(dev_t dev, int flags, int fmt, struct thread *td) 1639{ 1640 bktr_ptr_t bktr; 1641 int unit; 1642 1643 unit = UNIT(dev); 1644 1645 bktr = bktr_cd.cd_devs[unit]; 1646 1647 switch (FUNCTION(dev)) { 1648 case VIDEO_DEV: 1649 return(video_close(bktr)); 1650 case TUNER_DEV: 1651 return(tuner_close(bktr)); 1652 case VBI_DEV: 1653 return(vbi_close(bktr)); 1654 } 1655 1656 return(ENXIO); 1657} 1658 1659/* 1660 * 1661 */ 1662int 1663bktr_read(dev_t dev, struct uio *uio, int ioflag) 1664{ 1665 bktr_ptr_t bktr; 1666 int unit; 1667 1668 unit = UNIT(dev); 1669 1670 bktr = bktr_cd.cd_devs[unit]; 1671 1672 switch (FUNCTION(dev)) { 1673 case VIDEO_DEV: 1674 return(video_read(bktr, unit, dev, uio)); 1675 case VBI_DEV: 1676 return(vbi_read(bktr, uio, ioflag)); 1677 } 1678 1679 return(ENXIO); 1680} 1681 1682 1683/* 1684 * 1685 */ 1686int 1687bktr_write(dev_t dev, struct uio *uio, int ioflag) 1688{ 1689 /* operation not supported */ 1690 return(EOPNOTSUPP); 1691} 1692 1693/* 1694 * 1695 */ 1696int 1697bktr_ioctl(dev_t dev, ioctl_cmd_t cmd, caddr_t arg, int flag, struct thread *td) 1698{ 1699 bktr_ptr_t bktr; 1700 int unit; 1701 1702 unit = UNIT(dev); 1703 1704 bktr = bktr_cd.cd_devs[unit]; 1705 1706 if (bktr->bigbuf == 0) /* no frame buffer allocated (ioctl failed) */ 1707 return(ENOMEM); 1708 1709 switch (FUNCTION(dev)) { 1710 case VIDEO_DEV: 1711 return(video_ioctl(bktr, unit, cmd, arg, pr)); 1712 case TUNER_DEV: 1713 return(tuner_ioctl(bktr, unit, cmd, arg, pr)); 1714 } 1715 1716 return(ENXIO); 1717} 1718 1719/* 1720 * 1721 */ 1722paddr_t 1723bktr_mmap(dev_t dev, off_t offset, int nprot) 1724{ 1725 int unit; 1726 bktr_ptr_t bktr; 1727 1728 unit = UNIT(dev); 1729 1730 if (FUNCTION(dev) > 0) /* only allow mmap on /dev/bktr[n] */ 1731 return(-1); 1732 1733 bktr = bktr_cd.cd_devs[unit]; 1734 1735 if ((vaddr_t)offset < 0) 1736 return(-1); 1737 1738 if ((vaddr_t)offset >= bktr->alloc_pages * PAGE_SIZE) 1739 return(-1); 1740 1741#ifdef __NetBSD__ 1742 return (bus_dmamem_mmap(bktr->dmat, bktr->dm_mem->dm_segs, 1, 1743 (vaddr_t)offset, nprot, BUS_DMA_WAITOK)); 1744#else 1745 return(i386_btop(vtophys(bktr->bigbuf) + offset)); 1746#endif 1747} 1748 1749#endif /* __NetBSD__ || __OpenBSD__ */ 1750