bktr_os.c revision 93023
1/* $FreeBSD: head/sys/dev/bktr/bktr_os.c 93023 2002-03-23 15:49:15Z 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#if defined(BKTR_USE_FREEBSD_SMBUS) 990 if (bt848_i2c_attach(dev)) 991 printf("bktr%d: i2c_attach: can't attach\n", unit); 992#endif 993 994/* 995 * PCI latency timer. 32 is a good value for 4 bus mastering slots, if 996 * you have more than four, then 16 would probably be a better value. 997 */ 998#ifndef BROOKTREE_DEF_LATENCY_VALUE 999#define BROOKTREE_DEF_LATENCY_VALUE 10 1000#endif 1001 latency = pci_conf_read(tag, PCI_LATENCY_TIMER); 1002 latency = (latency >> 8) & 0xff; 1003 if ( bootverbose ) { 1004 if (latency) 1005 printf("brooktree%d: PCI bus latency is", unit); 1006 else 1007 printf("brooktree%d: PCI bus latency was 0 changing to", 1008 unit); 1009 } 1010 if ( !latency ) { 1011 latency = BROOKTREE_DEF_LATENCY_VALUE; 1012 pci_conf_write(tag, PCI_LATENCY_TIMER, latency<<8); 1013 } 1014 if ( bootverbose ) { 1015 printf(" %d.\n", (int) latency); 1016 } 1017 1018 1019 /* read the pci device id and revision id */ 1020 fun = pci_conf_read(tag, PCI_ID_REG); 1021 rev = pci_conf_read(tag, PCIR_REVID) & 0x000000ff; 1022 1023 /* call the common attach code */ 1024 common_bktr_attach( bktr, unit, fun, rev ); 1025 1026} 1027 1028 1029/* 1030 * Special Memory Allocation 1031 */ 1032vm_offset_t 1033get_bktr_mem( int unit, unsigned size ) 1034{ 1035 vm_offset_t addr = 0; 1036 1037 addr = vm_page_alloc_contig(size, 0x100000, 0xffffffff, 1<<24); 1038 if (addr == 0) 1039 addr = vm_page_alloc_contig(size, 0x100000, 0xffffffff, 1040 PAGE_SIZE); 1041 if (addr == 0) { 1042 printf("bktr%d: Unable to allocate %d bytes of memory.\n", 1043 unit, size); 1044 } 1045 1046 return( addr ); 1047} 1048 1049/*--------------------------------------------------------- 1050** 1051** BrookTree 848 character device driver routines 1052** 1053**--------------------------------------------------------- 1054*/ 1055 1056 1057#define VIDEO_DEV 0x00 1058#define TUNER_DEV 0x01 1059#define VBI_DEV 0x02 1060 1061#define UNIT(x) ((x) & 0x0f) 1062#define FUNCTION(x) ((x >> 4) & 0x0f) 1063 1064 1065/* 1066 * 1067 */ 1068int 1069bktr_open( dev_t dev, int flags, int fmt, struct thread *td ) 1070{ 1071 bktr_ptr_t bktr; 1072 int unit; 1073 1074 unit = UNIT( minor(dev) ); 1075 if (unit >= NBKTR) /* unit out of range */ 1076 return( ENXIO ); 1077 1078 bktr = &(brooktree[ unit ]); 1079 1080 if (!(bktr->flags & METEOR_INITALIZED)) /* device not found */ 1081 return( ENXIO ); 1082 1083 1084 if (bt848_card != -1) { 1085 if ((bt848_card >> 8 == unit ) && 1086 ( (bt848_card & 0xff) < Bt848_MAX_CARD )) { 1087 if ( bktr->bt848_card != (bt848_card & 0xff) ) { 1088 bktr->bt848_card = (bt848_card & 0xff); 1089 probeCard(bktr, FALSE, unit); 1090 } 1091 } 1092 } 1093 1094 if (bt848_tuner != -1) { 1095 if ((bt848_tuner >> 8 == unit ) && 1096 ( (bt848_tuner & 0xff) < Bt848_MAX_TUNER )) { 1097 if ( bktr->bt848_tuner != (bt848_tuner & 0xff) ) { 1098 bktr->bt848_tuner = (bt848_tuner & 0xff); 1099 probeCard(bktr, FALSE, unit); 1100 } 1101 } 1102 } 1103 1104 if (bt848_reverse_mute != -1) { 1105 if ((bt848_reverse_mute >> 8) == unit ) { 1106 bktr->reverse_mute = bt848_reverse_mute & 0xff; 1107 } 1108 } 1109 1110 if (bt848_slow_msp_audio != -1) { 1111 if ((bt848_slow_msp_audio >> 8) == unit ) { 1112 bktr->slow_msp_audio = (bt848_slow_msp_audio & 0xff); 1113 } 1114 } 1115 1116 switch ( FUNCTION( minor(dev) ) ) { 1117 case VIDEO_DEV: 1118 return( video_open( bktr ) ); 1119 case TUNER_DEV: 1120 return( tuner_open( bktr ) ); 1121 case VBI_DEV: 1122 return( vbi_open( bktr ) ); 1123 } 1124 return( ENXIO ); 1125} 1126 1127 1128/* 1129 * 1130 */ 1131int 1132bktr_close( dev_t dev, int flags, int fmt, struct thread *td ) 1133{ 1134 bktr_ptr_t bktr; 1135 int unit; 1136 1137 unit = UNIT( minor(dev) ); 1138 if (unit >= NBKTR) /* unit out of range */ 1139 return( ENXIO ); 1140 1141 bktr = &(brooktree[ unit ]); 1142 1143 switch ( FUNCTION( minor(dev) ) ) { 1144 case VIDEO_DEV: 1145 return( video_close( bktr ) ); 1146 case TUNER_DEV: 1147 return( tuner_close( bktr ) ); 1148 case VBI_DEV: 1149 return( vbi_close( bktr ) ); 1150 } 1151 1152 return( ENXIO ); 1153} 1154 1155/* 1156 * 1157 */ 1158int 1159bktr_read( dev_t dev, struct uio *uio, int ioflag ) 1160{ 1161 bktr_ptr_t bktr; 1162 int unit; 1163 1164 unit = UNIT(minor(dev)); 1165 if (unit >= NBKTR) /* unit out of range */ 1166 return( ENXIO ); 1167 1168 bktr = &(brooktree[unit]); 1169 1170 switch ( FUNCTION( minor(dev) ) ) { 1171 case VIDEO_DEV: 1172 return( video_read( bktr, unit, dev, uio ) ); 1173 case VBI_DEV: 1174 return( vbi_read( bktr, uio, ioflag ) ); 1175 } 1176 return( ENXIO ); 1177} 1178 1179 1180/* 1181 * 1182 */ 1183int 1184bktr_write( dev_t dev, struct uio *uio, int ioflag ) 1185{ 1186 return( EINVAL ); /* XXX or ENXIO ? */ 1187} 1188 1189/* 1190 * 1191 */ 1192int 1193bktr_ioctl( dev_t dev, ioctl_cmd_t cmd, caddr_t arg, int flag, struct thread *td ) 1194{ 1195 bktr_ptr_t bktr; 1196 int unit; 1197 1198 unit = UNIT(minor(dev)); 1199 if (unit >= NBKTR) /* unit out of range */ 1200 return( ENXIO ); 1201 1202 bktr = &(brooktree[ unit ]); 1203 1204 if (bktr->bigbuf == 0) /* no frame buffer allocated (ioctl failed) */ 1205 return( ENOMEM ); 1206 1207 switch ( FUNCTION( minor(dev) ) ) { 1208 case VIDEO_DEV: 1209 return( video_ioctl( bktr, unit, cmd, arg, td ) ); 1210 case TUNER_DEV: 1211 return( tuner_ioctl( bktr, unit, cmd, arg, td ) ); 1212 } 1213 1214 return( ENXIO ); 1215} 1216 1217/* 1218 * bktr_mmap. 1219 * Note: 2.2.5/2.2.6/2.2.7/3.0 users must manually 1220 * edit the line below and change "vm_offset_t" to "int" 1221 */ 1222int bktr_mmap( dev_t dev, vm_offset_t offset, int nprot ) 1223 1224{ 1225 int unit; 1226 bktr_ptr_t bktr; 1227 1228 unit = UNIT(minor(dev)); 1229 1230 if (unit >= NBKTR || FUNCTION(minor(dev)) > 0) 1231 return( -1 ); 1232 1233 bktr = &(brooktree[ unit ]); 1234 1235 if (nprot & PROT_EXEC) 1236 return( -1 ); 1237 1238 if (offset < 0) 1239 return( -1 ); 1240 1241 if (offset >= bktr->alloc_pages * PAGE_SIZE) 1242 return( -1 ); 1243 1244 return( i386_btop(vtophys(bktr->bigbuf) + offset) ); 1245} 1246 1247int bktr_poll( dev_t dev, int events, struct thread *td) 1248{ 1249 int unit; 1250 bktr_ptr_t bktr; 1251 int revents = 0; 1252 1253 unit = UNIT(minor(dev)); 1254 1255 if (unit >= NBKTR) 1256 return( -1 ); 1257 1258 bktr = &(brooktree[ unit ]); 1259 1260 disable_intr(); 1261 1262 if (events & (POLLIN | POLLRDNORM)) { 1263 1264 switch ( FUNCTION( minor(dev) ) ) { 1265 case VBI_DEV: 1266 if(bktr->vbisize == 0) 1267 selrecord(p, &bktr->vbi_select); 1268 else 1269 revents |= events & (POLLIN | POLLRDNORM); 1270 break; 1271 } 1272 } 1273 1274 enable_intr(); 1275 1276 return (revents); 1277} 1278 1279 1280#endif /* FreeBSD 2.2.x and 3.x specific kernel interface routines */ 1281 1282 1283/*****************/ 1284/* *** BSDI *** */ 1285/*****************/ 1286 1287#if defined(__bsdi__) 1288#endif /* __bsdi__ BSDI specific kernel interface routines */ 1289 1290 1291/*****************************/ 1292/* *** OpenBSD / NetBSD *** */ 1293/*****************************/ 1294#if defined(__NetBSD__) || defined(__OpenBSD__) 1295 1296#define IPL_VIDEO IPL_BIO /* XXX */ 1297 1298static int bktr_intr(void *arg) { return common_bktr_intr(arg); } 1299 1300#define bktr_open bktropen 1301#define bktr_close bktrclose 1302#define bktr_read bktrread 1303#define bktr_write bktrwrite 1304#define bktr_ioctl bktrioctl 1305#define bktr_mmap bktrmmap 1306 1307vm_offset_t vm_page_alloc_contig(vm_offset_t, vm_offset_t, 1308 vm_offset_t, vm_offset_t); 1309 1310#if defined(__OpenBSD__) 1311static int bktr_probe(struct device *, void *, void *); 1312#else 1313static int bktr_probe(struct device *, struct cfdata *, void *); 1314#endif 1315static void bktr_attach(struct device *, struct device *, void *); 1316 1317struct cfattach bktr_ca = { 1318 sizeof(struct bktr_softc), bktr_probe, bktr_attach 1319}; 1320 1321#if defined(__NetBSD__) 1322extern struct cfdriver bktr_cd; 1323#else 1324struct cfdriver bktr_cd = { 1325 NULL, "bktr", DV_DULL 1326}; 1327#endif 1328 1329int 1330bktr_probe(parent, match, aux) 1331 struct device *parent; 1332#if defined(__OpenBSD__) 1333 void *match; 1334#else 1335 struct cfdata *match; 1336#endif 1337 void *aux; 1338{ 1339 struct pci_attach_args *pa = aux; 1340 1341 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_BROOKTREE && 1342 (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT848 || 1343 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT849 || 1344 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT878 || 1345 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT879)) 1346 return 1; 1347 1348 return 0; 1349} 1350 1351 1352/* 1353 * the attach routine. 1354 */ 1355static void 1356bktr_attach(struct device *parent, struct device *self, void *aux) 1357{ 1358 bktr_ptr_t bktr; 1359 u_long latency; 1360 u_long fun; 1361 unsigned int rev; 1362 1363#if defined(__OpenBSD__) 1364 struct pci_attach_args *pa = aux; 1365 pci_chipset_tag_t pc = pa->pa_pc; 1366 1367 pci_intr_handle_t ih; 1368 const char *intrstr; 1369 int retval; 1370 int unit; 1371 1372 bktr = (bktr_ptr_t)self; 1373 unit = bktr->bktr_dev.dv_unit; 1374 1375 bktr->pc = pa->pa_pc; 1376 bktr->tag = pa->pa_tag; 1377 bktr->dmat = pa->pa_dmat; 1378 1379 /* 1380 * map memory 1381 */ 1382 bktr->memt = pa->pa_memt; 1383 retval = pci_mem_find(pc, pa->pa_tag, PCI_MAPREG_START, 1384 &bktr->phys_base, &bktr->obmemsz, NULL); 1385 if (!retval) 1386 retval = bus_space_map(pa->pa_memt, bktr->phys_base, 1387 bktr->obmemsz, 0, &bktr->memh); 1388 if (retval) { 1389 printf(": couldn't map memory\n"); 1390 return; 1391 } 1392 1393 1394 /* 1395 * map interrupt 1396 */ 1397 if (pci_intr_map(pa->pa_pc, pa->pa_intrtag, pa->pa_intrpin, 1398 pa->pa_intrline, &ih)) { 1399 printf(": couldn't map interrupt\n"); 1400 return; 1401 } 1402 intrstr = pci_intr_string(pa->pa_pc, ih); 1403 1404 bktr->ih = pci_intr_establish(pa->pa_pc, ih, IPL_VIDEO, 1405 bktr_intr, bktr, bktr->bktr_dev.dv_xname); 1406 if (bktr->ih == NULL) { 1407 printf(": couldn't establish interrupt"); 1408 if (intrstr != NULL) 1409 printf(" at %s", intrstr); 1410 printf("\n"); 1411 return; 1412 } 1413 1414 if (intrstr != NULL) 1415 printf(": %s\n", intrstr); 1416#endif /* __OpenBSD__ */ 1417 1418#if defined(__NetBSD__) 1419 struct pci_attach_args *pa = aux; 1420 pci_intr_handle_t ih; 1421 const char *intrstr; 1422 int retval; 1423 int unit; 1424 1425 bktr = (bktr_ptr_t)self; 1426 unit = bktr->bktr_dev.dv_unit; 1427 bktr->dmat = pa->pa_dmat; 1428 1429 printf("\n"); 1430 1431 /* 1432 * map memory 1433 */ 1434 retval = pci_mapreg_map(pa, PCI_MAPREG_START, 1435 PCI_MAPREG_TYPE_MEM 1436 | PCI_MAPREG_MEM_TYPE_32BIT, 0, 1437 &bktr->memt, &bktr->memh, NULL, 1438 &bktr->obmemsz); 1439 DPR(("pci_mapreg_map: memt %x, memh %x, size %x\n", 1440 bktr->memt, (u_int)bktr->memh, (u_int)bktr->obmemsz)); 1441 if (retval) { 1442 printf("%s: couldn't map memory\n", bktr_name(bktr)); 1443 return; 1444 } 1445 1446 /* 1447 * Disable the brooktree device 1448 */ 1449 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED); 1450 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED); 1451 1452 /* 1453 * map interrupt 1454 */ 1455 if (pci_intr_map(pa->pa_pc, pa->pa_intrtag, pa->pa_intrpin, 1456 pa->pa_intrline, &ih)) { 1457 printf("%s: couldn't map interrupt\n", 1458 bktr_name(bktr)); 1459 return; 1460 } 1461 intrstr = pci_intr_string(pa->pa_pc, ih); 1462 bktr->ih = pci_intr_establish(pa->pa_pc, ih, IPL_VIDEO, 1463 bktr_intr, bktr); 1464 if (bktr->ih == NULL) { 1465 printf("%s: couldn't establish interrupt", 1466 bktr_name(bktr)); 1467 if (intrstr != NULL) 1468 printf(" at %s", intrstr); 1469 printf("\n"); 1470 return; 1471 } 1472 if (intrstr != NULL) 1473 printf("%s: interrupting at %s\n", bktr_name(bktr), 1474 intrstr); 1475#endif /* __NetBSD__ */ 1476 1477/* 1478 * PCI latency timer. 32 is a good value for 4 bus mastering slots, if 1479 * you have more than four, then 16 would probably be a better value. 1480 */ 1481#ifndef BROOKTREE_DEF_LATENCY_VALUE 1482#define BROOKTREE_DEF_LATENCY_VALUE 10 1483#endif 1484 latency = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_LATENCY_TIMER); 1485 latency = (latency >> 8) & 0xff; 1486 1487 if (!latency) { 1488 if (bootverbose) { 1489 printf("%s: PCI bus latency was 0 changing to %d", 1490 bktr_name(bktr), BROOKTREE_DEF_LATENCY_VALUE); 1491 } 1492 latency = BROOKTREE_DEF_LATENCY_VALUE; 1493 pci_conf_write(pa->pa_pc, pa->pa_tag, 1494 PCI_LATENCY_TIMER, latency<<8); 1495 } 1496 1497 1498 /* Enabled Bus Master 1499 XXX: check if all old DMA is stopped first (e.g. after warm 1500 boot) */ 1501 fun = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); 1502 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, 1503 fun | PCI_COMMAND_MASTER_ENABLE); 1504 1505 /* read the pci id and determine the card type */ 1506 fun = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_ID_REG); 1507 rev = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_CLASS_REG) & 0x000000ff; 1508 1509 common_bktr_attach(bktr, unit, fun, rev); 1510} 1511 1512 1513/* 1514 * Special Memory Allocation 1515 */ 1516vm_offset_t 1517get_bktr_mem(bktr, dmapp, size) 1518 bktr_ptr_t bktr; 1519 bus_dmamap_t *dmapp; 1520 unsigned int size; 1521{ 1522 bus_dma_tag_t dmat = bktr->dmat; 1523 bus_dma_segment_t seg; 1524 bus_size_t align; 1525 int rseg; 1526 caddr_t kva; 1527 1528 /* 1529 * Allocate a DMA area 1530 */ 1531 align = 1 << 24; 1532 if (bus_dmamem_alloc(dmat, size, align, 0, &seg, 1, 1533 &rseg, BUS_DMA_NOWAIT)) { 1534 align = PAGE_SIZE; 1535 if (bus_dmamem_alloc(dmat, size, align, 0, &seg, 1, 1536 &rseg, BUS_DMA_NOWAIT)) { 1537 printf("%s: Unable to dmamem_alloc of %d bytes\n", 1538 bktr_name(bktr), size); 1539 return 0; 1540 } 1541 } 1542 if (bus_dmamem_map(dmat, &seg, rseg, size, 1543 &kva, BUS_DMA_NOWAIT|BUS_DMA_COHERENT)) { 1544 printf("%s: Unable to dmamem_map of %d bytes\n", 1545 bktr_name(bktr), size); 1546 bus_dmamem_free(dmat, &seg, rseg); 1547 return 0; 1548 } 1549#ifdef __OpenBSD__ 1550 bktr->dm_mapsize = size; 1551#endif 1552 /* 1553 * Create and locd the DMA map for the DMA area 1554 */ 1555 if (bus_dmamap_create(dmat, size, 1, size, 0, BUS_DMA_NOWAIT, dmapp)) { 1556 printf("%s: Unable to dmamap_create of %d bytes\n", 1557 bktr_name(bktr), size); 1558 bus_dmamem_unmap(dmat, kva, size); 1559 bus_dmamem_free(dmat, &seg, rseg); 1560 return 0; 1561 } 1562 if (bus_dmamap_load(dmat, *dmapp, kva, size, NULL, BUS_DMA_NOWAIT)) { 1563 printf("%s: Unable to dmamap_load of %d bytes\n", 1564 bktr_name(bktr), size); 1565 bus_dmamem_unmap(dmat, kva, size); 1566 bus_dmamem_free(dmat, &seg, rseg); 1567 bus_dmamap_destroy(dmat, *dmapp); 1568 return 0; 1569 } 1570 return (vm_offset_t)kva; 1571} 1572 1573void 1574free_bktr_mem(bktr, dmap, kva) 1575 bktr_ptr_t bktr; 1576 bus_dmamap_t dmap; 1577 vm_offset_t kva; 1578{ 1579 bus_dma_tag_t dmat = bktr->dmat; 1580 1581#ifdef __NetBSD__ 1582 bus_dmamem_unmap(dmat, (caddr_t)kva, dmap->dm_mapsize); 1583#else 1584 bus_dmamem_unmap(dmat, (caddr_t)kva, bktr->dm_mapsize); 1585#endif 1586 bus_dmamem_free(dmat, dmap->dm_segs, 1); 1587 bus_dmamap_destroy(dmat, dmap); 1588} 1589 1590 1591/*--------------------------------------------------------- 1592** 1593** BrookTree 848 character device driver routines 1594** 1595**--------------------------------------------------------- 1596*/ 1597 1598 1599#define VIDEO_DEV 0x00 1600#define TUNER_DEV 0x01 1601#define VBI_DEV 0x02 1602 1603#define UNIT(x) (minor((x) & 0x0f)) 1604#define FUNCTION(x) (minor((x >> 4) & 0x0f)) 1605 1606/* 1607 * 1608 */ 1609int 1610bktr_open(dev_t dev, int flags, int fmt, struct thread *td) 1611{ 1612 bktr_ptr_t bktr; 1613 int unit; 1614 1615 unit = UNIT(dev); 1616 1617 /* unit out of range */ 1618 if ((unit > bktr_cd.cd_ndevs) || (bktr_cd.cd_devs[unit] == NULL)) 1619 return(ENXIO); 1620 1621 bktr = bktr_cd.cd_devs[unit]; 1622 1623 if (!(bktr->flags & METEOR_INITALIZED)) /* device not found */ 1624 return(ENXIO); 1625 1626 switch (FUNCTION(dev)) { 1627 case VIDEO_DEV: 1628 return(video_open(bktr)); 1629 case TUNER_DEV: 1630 return(tuner_open(bktr)); 1631 case VBI_DEV: 1632 return(vbi_open(bktr)); 1633 } 1634 1635 return(ENXIO); 1636} 1637 1638 1639/* 1640 * 1641 */ 1642int 1643bktr_close(dev_t dev, int flags, int fmt, struct thread *td) 1644{ 1645 bktr_ptr_t bktr; 1646 int unit; 1647 1648 unit = UNIT(dev); 1649 1650 bktr = bktr_cd.cd_devs[unit]; 1651 1652 switch (FUNCTION(dev)) { 1653 case VIDEO_DEV: 1654 return(video_close(bktr)); 1655 case TUNER_DEV: 1656 return(tuner_close(bktr)); 1657 case VBI_DEV: 1658 return(vbi_close(bktr)); 1659 } 1660 1661 return(ENXIO); 1662} 1663 1664/* 1665 * 1666 */ 1667int 1668bktr_read(dev_t dev, struct uio *uio, int ioflag) 1669{ 1670 bktr_ptr_t bktr; 1671 int unit; 1672 1673 unit = UNIT(dev); 1674 1675 bktr = bktr_cd.cd_devs[unit]; 1676 1677 switch (FUNCTION(dev)) { 1678 case VIDEO_DEV: 1679 return(video_read(bktr, unit, dev, uio)); 1680 case VBI_DEV: 1681 return(vbi_read(bktr, uio, ioflag)); 1682 } 1683 1684 return(ENXIO); 1685} 1686 1687 1688/* 1689 * 1690 */ 1691int 1692bktr_write(dev_t dev, struct uio *uio, int ioflag) 1693{ 1694 /* operation not supported */ 1695 return(EOPNOTSUPP); 1696} 1697 1698/* 1699 * 1700 */ 1701int 1702bktr_ioctl(dev_t dev, ioctl_cmd_t cmd, caddr_t arg, int flag, struct thread *td) 1703{ 1704 bktr_ptr_t bktr; 1705 int unit; 1706 1707 unit = UNIT(dev); 1708 1709 bktr = bktr_cd.cd_devs[unit]; 1710 1711 if (bktr->bigbuf == 0) /* no frame buffer allocated (ioctl failed) */ 1712 return(ENOMEM); 1713 1714 switch (FUNCTION(dev)) { 1715 case VIDEO_DEV: 1716 return(video_ioctl(bktr, unit, cmd, arg, pr)); 1717 case TUNER_DEV: 1718 return(tuner_ioctl(bktr, unit, cmd, arg, pr)); 1719 } 1720 1721 return(ENXIO); 1722} 1723 1724/* 1725 * 1726 */ 1727paddr_t 1728bktr_mmap(dev_t dev, off_t offset, int nprot) 1729{ 1730 int unit; 1731 bktr_ptr_t bktr; 1732 1733 unit = UNIT(dev); 1734 1735 if (FUNCTION(dev) > 0) /* only allow mmap on /dev/bktr[n] */ 1736 return(-1); 1737 1738 bktr = bktr_cd.cd_devs[unit]; 1739 1740 if ((vaddr_t)offset < 0) 1741 return(-1); 1742 1743 if ((vaddr_t)offset >= bktr->alloc_pages * PAGE_SIZE) 1744 return(-1); 1745 1746#ifdef __NetBSD__ 1747 return (bus_dmamem_mmap(bktr->dmat, bktr->dm_mem->dm_segs, 1, 1748 (vaddr_t)offset, nprot, BUS_DMA_WAITOK)); 1749#else 1750 return(i386_btop(vtophys(bktr->bigbuf) + offset)); 1751#endif 1752} 1753 1754#endif /* __NetBSD__ || __OpenBSD__ */ 1755