bktr_os.c revision 104094
1/* $FreeBSD: head/sys/dev/bktr/bktr_os.c 104094 2002-09-28 17:15:38Z phk $ */ 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#include "opt_bktr.h" /* include any kernel config options */ 52 53#define FIFO_RISC_DISABLED 0 54#define ALL_INTS_DISABLED 0 55 56 57/*******************/ 58/* *** FreeBSD *** */ 59/*******************/ 60#ifdef __FreeBSD__ 61 62#include <sys/param.h> 63#include <sys/systm.h> 64#include <sys/conf.h> 65#include <sys/uio.h> 66#include <sys/kernel.h> 67#include <sys/signalvar.h> 68#include <sys/mman.h> 69#include <sys/poll.h> 70#if __FreeBSD_version >= 500014 71#include <sys/selinfo.h> 72#else 73#include <sys/select.h> 74#endif 75#include <sys/vnode.h> 76 77#include <vm/vm.h> 78#include <vm/vm_kern.h> 79#include <vm/pmap.h> 80#include <vm/vm_extern.h> 81 82#if (__FreeBSD_version >=400000) 83#include <sys/bus.h> /* used by smbus and newbus */ 84#endif 85 86#if (__FreeBSD_version >=300000) 87#include <machine/bus_memio.h> /* used by bus space */ 88#include <machine/bus.h> /* used by bus space and newbus */ 89#include <sys/bus.h> 90#endif 91 92#if (__FreeBSD_version >=400000) 93#include <sys/rman.h> /* used by newbus */ 94#include <machine/resource.h> /* used by newbus */ 95#endif 96 97#if (__FreeBSD_version < 500000) 98#include <machine/clock.h> /* for DELAY */ 99#endif 100 101#include <pci/pcivar.h> 102#include <pci/pcireg.h> 103 104#include <sys/sysctl.h> 105int bt848_card = -1; 106int bt848_tuner = -1; 107int bt848_reverse_mute = -1; 108int bt848_format = -1; 109int bt848_slow_msp_audio = -1; 110 111SYSCTL_NODE(_hw, OID_AUTO, bt848, CTLFLAG_RW, 0, "Bt848 Driver mgmt"); 112SYSCTL_INT(_hw_bt848, OID_AUTO, card, CTLFLAG_RW, &bt848_card, -1, ""); 113SYSCTL_INT(_hw_bt848, OID_AUTO, tuner, CTLFLAG_RW, &bt848_tuner, -1, ""); 114SYSCTL_INT(_hw_bt848, OID_AUTO, reverse_mute, CTLFLAG_RW, &bt848_reverse_mute, -1, ""); 115SYSCTL_INT(_hw_bt848, OID_AUTO, format, CTLFLAG_RW, &bt848_format, -1, ""); 116SYSCTL_INT(_hw_bt848, OID_AUTO, slow_msp_audio, CTLFLAG_RW, &bt848_slow_msp_audio, -1, ""); 117 118#endif /* end freebsd section */ 119 120 121 122/****************/ 123/* *** BSDI *** */ 124/****************/ 125#ifdef __bsdi__ 126#endif /* __bsdi__ */ 127 128 129/**************************/ 130/* *** OpenBSD/NetBSD *** */ 131/**************************/ 132#if defined(__NetBSD__) || defined(__OpenBSD__) 133 134#include <sys/param.h> 135#include <sys/systm.h> 136#include <sys/conf.h> 137#include <sys/uio.h> 138#include <sys/kernel.h> 139#include <sys/signalvar.h> 140#include <sys/mman.h> 141#include <sys/poll.h> 142#include <sys/select.h> 143#include <sys/vnode.h> 144 145#include <vm/vm.h> 146 147#ifndef __NetBSD__ 148#include <vm/vm_kern.h> 149#include <vm/pmap.h> 150#include <vm/vm_extern.h> 151#endif 152 153#include <sys/device.h> 154#include <dev/pci/pcivar.h> 155#include <dev/pci/pcireg.h> 156#include <dev/pci/pcidevs.h> 157 158#define BKTR_DEBUG 159#ifdef BKTR_DEBUG 160int bktr_debug = 0; 161#define DPR(x) (bktr_debug ? printf x : 0) 162#else 163#define DPR(x) 164#endif 165#endif /* __NetBSD__ || __OpenBSD__ */ 166 167 168#ifdef __NetBSD__ 169#include <dev/ic/bt8xx.h> /* NetBSD location for .h files */ 170#include <dev/pci/bktr/bktr_reg.h> 171#include <dev/pci/bktr/bktr_tuner.h> 172#include <dev/pci/bktr/bktr_card.h> 173#include <dev/pci/bktr/bktr_audio.h> 174#include <dev/pci/bktr/bktr_core.h> 175#include <dev/pci/bktr/bktr_os.h> 176#else /* Traditional location for .h files */ 177#include <machine/ioctl_meteor.h> 178#include <machine/ioctl_bt848.h> /* extensions to ioctl_meteor.h */ 179#include <dev/bktr/bktr_reg.h> 180#include <dev/bktr/bktr_tuner.h> 181#include <dev/bktr/bktr_card.h> 182#include <dev/bktr/bktr_audio.h> 183#include <dev/bktr/bktr_core.h> 184#include <dev/bktr/bktr_os.h> 185 186#if defined(BKTR_USE_FREEBSD_SMBUS) 187#include <dev/bktr/bktr_i2c.h> 188 189#include "iicbb_if.h" 190#include "smbus_if.h" 191#endif 192#endif 193 194 195/****************************/ 196/* *** FreeBSD 4.x code *** */ 197/****************************/ 198#if (__FreeBSD_version >= 400000) 199 200static int bktr_probe( device_t dev ); 201static int bktr_attach( device_t dev ); 202static int bktr_detach( device_t dev ); 203static int bktr_shutdown( device_t dev ); 204static void bktr_intr(void *arg) { common_bktr_intr(arg); } 205 206static device_method_t bktr_methods[] = { 207 /* Device interface */ 208 DEVMETHOD(device_probe, bktr_probe), 209 DEVMETHOD(device_attach, bktr_attach), 210 DEVMETHOD(device_detach, bktr_detach), 211 DEVMETHOD(device_shutdown, bktr_shutdown), 212 213#if defined(BKTR_USE_FREEBSD_SMBUS) 214 /* iicbb interface */ 215 DEVMETHOD(iicbb_callback, bti2c_iic_callback), 216 DEVMETHOD(iicbb_setsda, bti2c_iic_setsda), 217 DEVMETHOD(iicbb_setscl, bti2c_iic_setscl), 218 DEVMETHOD(iicbb_getsda, bti2c_iic_getsda), 219 DEVMETHOD(iicbb_getscl, bti2c_iic_getscl), 220 DEVMETHOD(iicbb_reset, bti2c_iic_reset), 221 222 /* smbus interface */ 223 DEVMETHOD(smbus_callback, bti2c_smb_callback), 224 DEVMETHOD(smbus_writeb, bti2c_smb_writeb), 225 DEVMETHOD(smbus_writew, bti2c_smb_writew), 226 DEVMETHOD(smbus_readb, bti2c_smb_readb), 227#endif 228 229 { 0, 0 } 230}; 231 232static driver_t bktr_driver = { 233 "bktr", 234 bktr_methods, 235 sizeof(struct bktr_softc), 236}; 237 238static devclass_t bktr_devclass; 239 240static d_open_t bktr_open; 241static d_close_t bktr_close; 242static d_read_t bktr_read; 243static d_write_t bktr_write; 244static d_ioctl_t bktr_ioctl; 245static d_mmap_t bktr_mmap; 246static d_poll_t bktr_poll; 247 248#define CDEV_MAJOR 92 249static struct cdevsw bktr_cdevsw = { 250 /* open */ bktr_open, 251 /* close */ bktr_close, 252 /* read */ bktr_read, 253 /* write */ bktr_write, 254 /* ioctl */ bktr_ioctl, 255 /* poll */ bktr_poll, 256 /* mmap */ bktr_mmap, 257 /* strategy */ nostrategy, 258 /* name */ "bktr", 259 /* maj */ CDEV_MAJOR, 260 /* dump */ nodump, 261 /* psize */ nopsize, 262 /* flags */ 0, 263}; 264 265DRIVER_MODULE(bktr, pci, bktr_driver, bktr_devclass, 0, 0); 266#if (__FreeBSD_version > 410000) 267MODULE_DEPEND(bktr, bktr_mem, 1,1,1); 268MODULE_VERSION(bktr, 1); 269#endif 270 271 272/* 273 * the boot time probe routine. 274 */ 275static int 276bktr_probe( device_t dev ) 277{ 278 unsigned int type = pci_get_devid(dev); 279 unsigned int rev = pci_get_revid(dev); 280 281 if (PCI_VENDOR(type) == PCI_VENDOR_BROOKTREE) 282 { 283 switch (PCI_PRODUCT(type)) { 284 case PCI_PRODUCT_BROOKTREE_BT848: 285 if (rev == 0x12) 286 device_set_desc(dev, "BrookTree 848A"); 287 else 288 device_set_desc(dev, "BrookTree 848"); 289 return 0; 290 case PCI_PRODUCT_BROOKTREE_BT849: 291 device_set_desc(dev, "BrookTree 849A"); 292 return 0; 293 case PCI_PRODUCT_BROOKTREE_BT878: 294 device_set_desc(dev, "BrookTree 878"); 295 return 0; 296 case PCI_PRODUCT_BROOKTREE_BT879: 297 device_set_desc(dev, "BrookTree 879"); 298 return 0; 299 } 300 }; 301 302 return ENXIO; 303} 304 305 306/* 307 * the attach routine. 308 */ 309static int 310bktr_attach( device_t dev ) 311{ 312 u_long latency; 313 u_long fun; 314 u_long val; 315 unsigned int rev; 316 unsigned int unit; 317 int error = 0; 318#ifdef BROOKTREE_IRQ 319 u_long old_irq, new_irq; 320#endif 321 322 struct bktr_softc *bktr = device_get_softc(dev); 323 324 unit = device_get_unit(dev); 325 326 /* build the device name for bktr_name() */ 327 snprintf(bktr->bktr_xname, sizeof(bktr->bktr_xname), "bktr%d",unit); 328 329 /* 330 * Enable bus mastering and Memory Mapped device 331 */ 332 val = pci_read_config(dev, PCIR_COMMAND, 4); 333 val |= (PCIM_CMD_MEMEN|PCIM_CMD_BUSMASTEREN); 334 pci_write_config(dev, PCIR_COMMAND, val, 4); 335 336 /* 337 * Map control/status registers. 338 */ 339 bktr->mem_rid = PCIR_MAPS; 340 bktr->res_mem = bus_alloc_resource(dev, SYS_RES_MEMORY, &bktr->mem_rid, 341 0, ~0, 1, RF_ACTIVE); 342 343 344 if (!bktr->res_mem) { 345 device_printf(dev, "could not map memory\n"); 346 error = ENXIO; 347 goto fail; 348 } 349 bktr->memt = rman_get_bustag(bktr->res_mem); 350 bktr->memh = rman_get_bushandle(bktr->res_mem); 351 352 353 /* 354 * Disable the brooktree device 355 */ 356 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED); 357 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED); 358 359 360#ifdef BROOKTREE_IRQ /* from the configuration file */ 361 old_irq = pci_conf_read(tag, PCI_INTERRUPT_REG); 362 pci_conf_write(tag, PCI_INTERRUPT_REG, BROOKTREE_IRQ); 363 new_irq = pci_conf_read(tag, PCI_INTERRUPT_REG); 364 printf("bktr%d: attach: irq changed from %d to %d\n", 365 unit, (old_irq & 0xff), (new_irq & 0xff)); 366#endif 367 368 /* 369 * Allocate our interrupt. 370 */ 371 bktr->irq_rid = 0; 372 bktr->res_irq = bus_alloc_resource(dev, SYS_RES_IRQ, &bktr->irq_rid, 373 0, ~0, 1, RF_SHAREABLE | RF_ACTIVE); 374 if (bktr->res_irq == NULL) { 375 device_printf(dev, "could not map interrupt\n"); 376 error = ENXIO; 377 goto fail; 378 } 379 380 error = bus_setup_intr(dev, bktr->res_irq, INTR_TYPE_TTY, 381 bktr_intr, bktr, &bktr->res_ih); 382 if (error) { 383 device_printf(dev, "could not setup irq\n"); 384 goto fail; 385 386 } 387 388 389 /* Update the Device Control Register */ 390 /* on Bt878 and Bt879 cards */ 391 fun = pci_read_config( dev, 0x40, 2); 392 fun = fun | 1; /* Enable writes to the sub-system vendor ID */ 393 394#if defined( BKTR_430_FX_MODE ) 395 if (bootverbose) printf("Using 430 FX chipset compatibilty mode\n"); 396 fun = fun | 2; /* Enable Intel 430 FX compatibility mode */ 397#endif 398 399#if defined( BKTR_SIS_VIA_MODE ) 400 if (bootverbose) printf("Using SiS/VIA chipset compatibilty mode\n"); 401 fun = fun | 4; /* Enable SiS/VIA compatibility mode (usefull for 402 OPTi chipset motherboards too */ 403#endif 404 pci_write_config(dev, 0x40, fun, 2); 405 406#if defined(BKTR_USE_FREEBSD_SMBUS) 407 if (bt848_i2c_attach(dev)) 408 printf("bktr%d: i2c_attach: can't attach\n", unit); 409#endif 410 411/* 412 * PCI latency timer. 32 is a good value for 4 bus mastering slots, if 413 * you have more than four, then 16 would probably be a better value. 414 */ 415#ifndef BROOKTREE_DEF_LATENCY_VALUE 416#define BROOKTREE_DEF_LATENCY_VALUE 10 417#endif 418 latency = pci_read_config(dev, PCI_LATENCY_TIMER, 4); 419 latency = (latency >> 8) & 0xff; 420 if ( bootverbose ) { 421 if (latency) 422 printf("brooktree%d: PCI bus latency is", unit); 423 else 424 printf("brooktree%d: PCI bus latency was 0 changing to", 425 unit); 426 } 427 if ( !latency ) { 428 latency = BROOKTREE_DEF_LATENCY_VALUE; 429 pci_write_config(dev, PCI_LATENCY_TIMER, latency<<8, 4); 430 } 431 if ( bootverbose ) { 432 printf(" %d.\n", (int) latency); 433 } 434 435 /* read the pci device id and revision id */ 436 fun = pci_get_devid(dev); 437 rev = pci_get_revid(dev); 438 439 /* call the common attach code */ 440 common_bktr_attach( bktr, unit, fun, rev ); 441 442 /* make the device entries */ 443 bktr->bktrdev = make_dev(&bktr_cdevsw, unit, 444 0, 0, 0444, "bktr%d", unit); 445 bktr->tunerdev= make_dev(&bktr_cdevsw, unit+16, 446 0, 0, 0444, "tuner%d", unit); 447 bktr->vbidev = make_dev(&bktr_cdevsw, unit+32, 448 0, 0, 0444, "vbi%d" , unit); 449 450 451 /* if this is unit 0 (/dev/bktr0, /dev/tuner0, /dev/vbi0) then make */ 452 /* alias entries to /dev/bktr /dev/tuner and /dev/vbi */ 453#if (__FreeBSD_version >=500000) 454 if (unit == 0) { 455 bktr->bktrdev_alias = make_dev_alias(bktr->bktrdev, "bktr"); 456 bktr->tunerdev_alias= make_dev_alias(bktr->tunerdev, "tuner"); 457 bktr->vbidev_alias = make_dev_alias(bktr->vbidev, "vbi"); 458 } 459#endif 460 461 return 0; 462 463fail: 464 if (bktr->res_irq) 465 bus_release_resource(dev, SYS_RES_IRQ, bktr->irq_rid, bktr->res_irq); 466 if (bktr->res_mem) 467 bus_release_resource(dev, SYS_RES_IRQ, bktr->mem_rid, bktr->res_mem); 468 return error; 469 470} 471 472/* 473 * the detach routine. 474 */ 475static int 476bktr_detach( device_t dev ) 477{ 478 unsigned int unit; 479 480 struct bktr_softc *bktr = device_get_softc(dev); 481 482 unit = device_get_unit(dev); 483 484 /* Disable the brooktree device */ 485 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED); 486 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED); 487 488#if defined(BKTR_USE_FREEBSD_SMBUS) 489 if (bt848_i2c_detach(dev)) 490 printf("bktr%d: i2c_attach: can't attach\n", unit); 491#endif 492 493 /* Note: We do not free memory for RISC programs, grab buffer, vbi buffers */ 494 /* The memory is retained by the bktr_mem module so we can unload and */ 495 /* then reload the main bktr driver module */ 496 497 /* Unregister the /dev/bktrN, tunerN and vbiN devices */ 498 destroy_dev(bktr->vbidev); 499 destroy_dev(bktr->tunerdev); 500 destroy_dev(bktr->bktrdev); 501 502 /* If this is unit 0, then destroy the alias entries too */ 503#if (__FreeBSD_version >=500000) 504 if (unit == 0) { 505 destroy_dev(bktr->vbidev_alias); 506 destroy_dev(bktr->tunerdev_alias); 507 destroy_dev(bktr->bktrdev_alias); 508 } 509#endif 510 511 /* 512 * Deallocate resources. 513 */ 514 bus_teardown_intr(dev, bktr->res_irq, bktr->res_ih); 515 bus_release_resource(dev, SYS_RES_IRQ, bktr->irq_rid, bktr->res_irq); 516 bus_release_resource(dev, SYS_RES_MEMORY, bktr->mem_rid, bktr->res_mem); 517 518 return 0; 519} 520 521/* 522 * the shutdown routine. 523 */ 524static int 525bktr_shutdown( device_t dev ) 526{ 527 struct bktr_softc *bktr = device_get_softc(dev); 528 529 /* Disable the brooktree device */ 530 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED); 531 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED); 532 533 return 0; 534} 535 536 537/* 538 * Special Memory Allocation 539 */ 540vm_offset_t 541get_bktr_mem( int unit, unsigned size ) 542{ 543 vm_offset_t addr = 0; 544 545 addr = vm_page_alloc_contig(size, 0, 0xffffffff, 1<<24); 546 if (addr == 0) 547 addr = vm_page_alloc_contig(size, 0, 0xffffffff, PAGE_SIZE); 548 if (addr == 0) { 549 printf("bktr%d: Unable to allocate %d bytes of memory.\n", 550 unit, size); 551 } 552 553 return( addr ); 554} 555 556 557/*--------------------------------------------------------- 558** 559** BrookTree 848 character device driver routines 560** 561**--------------------------------------------------------- 562*/ 563 564#define VIDEO_DEV 0x00 565#define TUNER_DEV 0x01 566#define VBI_DEV 0x02 567 568#define UNIT(x) ((x) & 0x0f) 569#define FUNCTION(x) (x >> 4) 570 571/* 572 * 573 */ 574static int 575bktr_open( dev_t dev, int flags, int fmt, struct thread *td ) 576{ 577 bktr_ptr_t bktr; 578 int unit; 579 int result; 580 581 unit = UNIT( minor(dev) ); 582 583 /* Get the device data */ 584 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 585 if (bktr == NULL) { 586 /* the device is no longer valid/functioning */ 587 return (ENXIO); 588 } 589 590 if (!(bktr->flags & METEOR_INITALIZED)) /* device not found */ 591 return( ENXIO ); 592 593 /* Record that the device is now busy */ 594 device_busy(devclass_get_device(bktr_devclass, unit)); 595 596 597 if (bt848_card != -1) { 598 if ((bt848_card >> 8 == unit ) && 599 ( (bt848_card & 0xff) < Bt848_MAX_CARD )) { 600 if ( bktr->bt848_card != (bt848_card & 0xff) ) { 601 bktr->bt848_card = (bt848_card & 0xff); 602 probeCard(bktr, FALSE, unit); 603 } 604 } 605 } 606 607 if (bt848_tuner != -1) { 608 if ((bt848_tuner >> 8 == unit ) && 609 ( (bt848_tuner & 0xff) < Bt848_MAX_TUNER )) { 610 if ( bktr->bt848_tuner != (bt848_tuner & 0xff) ) { 611 bktr->bt848_tuner = (bt848_tuner & 0xff); 612 probeCard(bktr, FALSE, unit); 613 } 614 } 615 } 616 617 if (bt848_reverse_mute != -1) { 618 if ((bt848_reverse_mute >> 8) == unit ) { 619 bktr->reverse_mute = bt848_reverse_mute & 0xff; 620 } 621 } 622 623 if (bt848_slow_msp_audio != -1) { 624 if ((bt848_slow_msp_audio >> 8) == unit ) { 625 bktr->slow_msp_audio = (bt848_slow_msp_audio & 0xff); 626 } 627 } 628 629 switch ( FUNCTION( minor(dev) ) ) { 630 case VIDEO_DEV: 631 result = video_open( bktr ); 632 break; 633 case TUNER_DEV: 634 result = tuner_open( bktr ); 635 break; 636 case VBI_DEV: 637 result = vbi_open( bktr ); 638 break; 639 default: 640 result = ENXIO; 641 break; 642 } 643 644 /* If there was an error opening the device, undo the busy status */ 645 if (result != 0) 646 device_unbusy(devclass_get_device(bktr_devclass, unit)); 647 return( result ); 648} 649 650 651/* 652 * 653 */ 654static int 655bktr_close( dev_t dev, int flags, int fmt, struct thread *td ) 656{ 657 bktr_ptr_t bktr; 658 int unit; 659 int result; 660 661 unit = UNIT( minor(dev) ); 662 663 /* Get the device data */ 664 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 665 if (bktr == NULL) { 666 /* the device is no longer valid/functioning */ 667 return (ENXIO); 668 } 669 670 switch ( FUNCTION( minor(dev) ) ) { 671 case VIDEO_DEV: 672 result = video_close( bktr ); 673 break; 674 case TUNER_DEV: 675 result = tuner_close( bktr ); 676 break; 677 case VBI_DEV: 678 result = vbi_close( bktr ); 679 break; 680 default: 681 return (ENXIO); 682 break; 683 } 684 685 device_unbusy(devclass_get_device(bktr_devclass, unit)); 686 return( result ); 687} 688 689 690/* 691 * 692 */ 693static int 694bktr_read( dev_t dev, struct uio *uio, int ioflag ) 695{ 696 bktr_ptr_t bktr; 697 int unit; 698 699 unit = UNIT(minor(dev)); 700 701 /* Get the device data */ 702 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 703 if (bktr == NULL) { 704 /* the device is no longer valid/functioning */ 705 return (ENXIO); 706 } 707 708 switch ( FUNCTION( minor(dev) ) ) { 709 case VIDEO_DEV: 710 return( video_read( bktr, unit, dev, uio ) ); 711 case VBI_DEV: 712 return( vbi_read( bktr, uio, ioflag ) ); 713 } 714 return( ENXIO ); 715} 716 717 718/* 719 * 720 */ 721static int 722bktr_write( dev_t dev, struct uio *uio, int ioflag ) 723{ 724 return( EINVAL ); /* XXX or ENXIO ? */ 725} 726 727 728/* 729 * 730 */ 731static int 732bktr_ioctl( dev_t dev, ioctl_cmd_t cmd, caddr_t arg, int flag, struct thread *td ) 733{ 734 bktr_ptr_t bktr; 735 int unit; 736 737 unit = UNIT(minor(dev)); 738 739 /* Get the device data */ 740 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 741 if (bktr == NULL) { 742 /* the device is no longer valid/functioning */ 743 return (ENXIO); 744 } 745 746 if (bktr->bigbuf == 0) /* no frame buffer allocated (ioctl failed) */ 747 return( ENOMEM ); 748 749 switch ( FUNCTION( minor(dev) ) ) { 750 case VIDEO_DEV: 751 return( video_ioctl( bktr, unit, cmd, arg, td ) ); 752 case TUNER_DEV: 753 return( tuner_ioctl( bktr, unit, cmd, arg, td ) ); 754 } 755 756 return( ENXIO ); 757} 758 759 760/* 761 * 762 */ 763static int 764bktr_mmap( dev_t dev, vm_offset_t offset, int nprot ) 765{ 766 int unit; 767 bktr_ptr_t bktr; 768 769 unit = UNIT(minor(dev)); 770 771 if (FUNCTION(minor(dev)) > 0) /* only allow mmap on /dev/bktr[n] */ 772 return( -1 ); 773 774 /* Get the device data */ 775 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 776 if (bktr == NULL) { 777 /* the device is no longer valid/functioning */ 778 return (ENXIO); 779 } 780 781 if (nprot & PROT_EXEC) 782 return( -1 ); 783 784 if (offset < 0) 785 return( -1 ); 786 787 if (offset >= bktr->alloc_pages * PAGE_SIZE) 788 return( -1 ); 789 790 return( atop(vtophys(bktr->bigbuf) + offset) ); 791} 792 793static int 794bktr_poll( dev_t dev, int events, struct thread *td) 795{ 796 int unit; 797 bktr_ptr_t bktr; 798 int revents = 0; 799 DECLARE_INTR_MASK(s); 800 801 unit = UNIT(minor(dev)); 802 803 /* Get the device data */ 804 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 805 if (bktr == NULL) { 806 /* the device is no longer valid/functioning */ 807 return (ENXIO); 808 } 809 810 DISABLE_INTR(s); 811 812 if (events & (POLLIN | POLLRDNORM)) { 813 814 switch ( FUNCTION( minor(dev) ) ) { 815 case VBI_DEV: 816 if(bktr->vbisize == 0) 817 selrecord(td, &bktr->vbi_select); 818 else 819 revents |= events & (POLLIN | POLLRDNORM); 820 break; 821 } 822 } 823 824 ENABLE_INTR(s); 825 826 return (revents); 827} 828 829#endif /* FreeBSD 4.x specific kernel interface routines */ 830 831/*****************/ 832/* *** BSDI *** */ 833/*****************/ 834 835#if defined(__bsdi__) 836#endif /* __bsdi__ BSDI specific kernel interface routines */ 837 838 839/*****************************/ 840/* *** OpenBSD / NetBSD *** */ 841/*****************************/ 842#if defined(__NetBSD__) || defined(__OpenBSD__) 843 844#define IPL_VIDEO IPL_BIO /* XXX */ 845 846static int bktr_intr(void *arg) { return common_bktr_intr(arg); } 847 848#define bktr_open bktropen 849#define bktr_close bktrclose 850#define bktr_read bktrread 851#define bktr_write bktrwrite 852#define bktr_ioctl bktrioctl 853#define bktr_mmap bktrmmap 854 855vm_offset_t vm_page_alloc_contig(vm_offset_t, vm_offset_t, 856 vm_offset_t, vm_offset_t); 857 858#if defined(__OpenBSD__) 859static int bktr_probe(struct device *, void *, void *); 860#else 861static int bktr_probe(struct device *, struct cfdata *, void *); 862#endif 863static void bktr_attach(struct device *, struct device *, void *); 864 865struct cfattach bktr_ca = { 866 sizeof(struct bktr_softc), bktr_probe, bktr_attach 867}; 868 869#if defined(__NetBSD__) 870extern struct cfdriver bktr_cd; 871#else 872struct cfdriver bktr_cd = { 873 NULL, "bktr", DV_DULL 874}; 875#endif 876 877int 878bktr_probe(parent, match, aux) 879 struct device *parent; 880#if defined(__OpenBSD__) 881 void *match; 882#else 883 struct cfdata *match; 884#endif 885 void *aux; 886{ 887 struct pci_attach_args *pa = aux; 888 889 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_BROOKTREE && 890 (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT848 || 891 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT849 || 892 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT878 || 893 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT879)) 894 return 1; 895 896 return 0; 897} 898 899 900/* 901 * the attach routine. 902 */ 903static void 904bktr_attach(struct device *parent, struct device *self, void *aux) 905{ 906 bktr_ptr_t bktr; 907 u_long latency; 908 u_long fun; 909 unsigned int rev; 910 911#if defined(__OpenBSD__) 912 struct pci_attach_args *pa = aux; 913 pci_chipset_tag_t pc = pa->pa_pc; 914 915 pci_intr_handle_t ih; 916 const char *intrstr; 917 int retval; 918 int unit; 919 920 bktr = (bktr_ptr_t)self; 921 unit = bktr->bktr_dev.dv_unit; 922 923 bktr->pc = pa->pa_pc; 924 bktr->tag = pa->pa_tag; 925 bktr->dmat = pa->pa_dmat; 926 927 /* 928 * map memory 929 */ 930 bktr->memt = pa->pa_memt; 931 retval = pci_mem_find(pc, pa->pa_tag, PCI_MAPREG_START, 932 &bktr->phys_base, &bktr->obmemsz, NULL); 933 if (!retval) 934 retval = bus_space_map(pa->pa_memt, bktr->phys_base, 935 bktr->obmemsz, 0, &bktr->memh); 936 if (retval) { 937 printf(": couldn't map memory\n"); 938 return; 939 } 940 941 942 /* 943 * map interrupt 944 */ 945 if (pci_intr_map(pa->pa_pc, pa->pa_intrtag, pa->pa_intrpin, 946 pa->pa_intrline, &ih)) { 947 printf(": couldn't map interrupt\n"); 948 return; 949 } 950 intrstr = pci_intr_string(pa->pa_pc, ih); 951 952 bktr->ih = pci_intr_establish(pa->pa_pc, ih, IPL_VIDEO, 953 bktr_intr, bktr, bktr->bktr_dev.dv_xname); 954 if (bktr->ih == NULL) { 955 printf(": couldn't establish interrupt"); 956 if (intrstr != NULL) 957 printf(" at %s", intrstr); 958 printf("\n"); 959 return; 960 } 961 962 if (intrstr != NULL) 963 printf(": %s\n", intrstr); 964#endif /* __OpenBSD__ */ 965 966#if defined(__NetBSD__) 967 struct pci_attach_args *pa = aux; 968 pci_intr_handle_t ih; 969 const char *intrstr; 970 int retval; 971 int unit; 972 973 bktr = (bktr_ptr_t)self; 974 unit = bktr->bktr_dev.dv_unit; 975 bktr->dmat = pa->pa_dmat; 976 977 printf("\n"); 978 979 /* 980 * map memory 981 */ 982 retval = pci_mapreg_map(pa, PCI_MAPREG_START, 983 PCI_MAPREG_TYPE_MEM 984 | PCI_MAPREG_MEM_TYPE_32BIT, 0, 985 &bktr->memt, &bktr->memh, NULL, 986 &bktr->obmemsz); 987 DPR(("pci_mapreg_map: memt %x, memh %x, size %x\n", 988 bktr->memt, (u_int)bktr->memh, (u_int)bktr->obmemsz)); 989 if (retval) { 990 printf("%s: couldn't map memory\n", bktr_name(bktr)); 991 return; 992 } 993 994 /* 995 * Disable the brooktree device 996 */ 997 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED); 998 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED); 999 1000 /* 1001 * map interrupt 1002 */ 1003 if (pci_intr_map(pa->pa_pc, pa->pa_intrtag, pa->pa_intrpin, 1004 pa->pa_intrline, &ih)) { 1005 printf("%s: couldn't map interrupt\n", 1006 bktr_name(bktr)); 1007 return; 1008 } 1009 intrstr = pci_intr_string(pa->pa_pc, ih); 1010 bktr->ih = pci_intr_establish(pa->pa_pc, ih, IPL_VIDEO, 1011 bktr_intr, bktr); 1012 if (bktr->ih == NULL) { 1013 printf("%s: couldn't establish interrupt", 1014 bktr_name(bktr)); 1015 if (intrstr != NULL) 1016 printf(" at %s", intrstr); 1017 printf("\n"); 1018 return; 1019 } 1020 if (intrstr != NULL) 1021 printf("%s: interrupting at %s\n", bktr_name(bktr), 1022 intrstr); 1023#endif /* __NetBSD__ */ 1024 1025/* 1026 * PCI latency timer. 32 is a good value for 4 bus mastering slots, if 1027 * you have more than four, then 16 would probably be a better value. 1028 */ 1029#ifndef BROOKTREE_DEF_LATENCY_VALUE 1030#define BROOKTREE_DEF_LATENCY_VALUE 10 1031#endif 1032 latency = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_LATENCY_TIMER); 1033 latency = (latency >> 8) & 0xff; 1034 1035 if (!latency) { 1036 if (bootverbose) { 1037 printf("%s: PCI bus latency was 0 changing to %d", 1038 bktr_name(bktr), BROOKTREE_DEF_LATENCY_VALUE); 1039 } 1040 latency = BROOKTREE_DEF_LATENCY_VALUE; 1041 pci_conf_write(pa->pa_pc, pa->pa_tag, 1042 PCI_LATENCY_TIMER, latency<<8); 1043 } 1044 1045 1046 /* Enabled Bus Master 1047 XXX: check if all old DMA is stopped first (e.g. after warm 1048 boot) */ 1049 fun = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); 1050 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, 1051 fun | PCI_COMMAND_MASTER_ENABLE); 1052 1053 /* read the pci id and determine the card type */ 1054 fun = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_ID_REG); 1055 rev = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_CLASS_REG) & 0x000000ff; 1056 1057 common_bktr_attach(bktr, unit, fun, rev); 1058} 1059 1060 1061/* 1062 * Special Memory Allocation 1063 */ 1064vm_offset_t 1065get_bktr_mem(bktr, dmapp, size) 1066 bktr_ptr_t bktr; 1067 bus_dmamap_t *dmapp; 1068 unsigned int size; 1069{ 1070 bus_dma_tag_t dmat = bktr->dmat; 1071 bus_dma_segment_t seg; 1072 bus_size_t align; 1073 int rseg; 1074 caddr_t kva; 1075 1076 /* 1077 * Allocate a DMA area 1078 */ 1079 align = 1 << 24; 1080 if (bus_dmamem_alloc(dmat, size, align, 0, &seg, 1, 1081 &rseg, BUS_DMA_NOWAIT)) { 1082 align = PAGE_SIZE; 1083 if (bus_dmamem_alloc(dmat, size, align, 0, &seg, 1, 1084 &rseg, BUS_DMA_NOWAIT)) { 1085 printf("%s: Unable to dmamem_alloc of %d bytes\n", 1086 bktr_name(bktr), size); 1087 return 0; 1088 } 1089 } 1090 if (bus_dmamem_map(dmat, &seg, rseg, size, 1091 &kva, BUS_DMA_NOWAIT|BUS_DMA_COHERENT)) { 1092 printf("%s: Unable to dmamem_map of %d bytes\n", 1093 bktr_name(bktr), size); 1094 bus_dmamem_free(dmat, &seg, rseg); 1095 return 0; 1096 } 1097#ifdef __OpenBSD__ 1098 bktr->dm_mapsize = size; 1099#endif 1100 /* 1101 * Create and locd the DMA map for the DMA area 1102 */ 1103 if (bus_dmamap_create(dmat, size, 1, size, 0, BUS_DMA_NOWAIT, dmapp)) { 1104 printf("%s: Unable to dmamap_create of %d bytes\n", 1105 bktr_name(bktr), size); 1106 bus_dmamem_unmap(dmat, kva, size); 1107 bus_dmamem_free(dmat, &seg, rseg); 1108 return 0; 1109 } 1110 if (bus_dmamap_load(dmat, *dmapp, kva, size, NULL, BUS_DMA_NOWAIT)) { 1111 printf("%s: Unable to dmamap_load of %d bytes\n", 1112 bktr_name(bktr), size); 1113 bus_dmamem_unmap(dmat, kva, size); 1114 bus_dmamem_free(dmat, &seg, rseg); 1115 bus_dmamap_destroy(dmat, *dmapp); 1116 return 0; 1117 } 1118 return (vm_offset_t)kva; 1119} 1120 1121void 1122free_bktr_mem(bktr, dmap, kva) 1123 bktr_ptr_t bktr; 1124 bus_dmamap_t dmap; 1125 vm_offset_t kva; 1126{ 1127 bus_dma_tag_t dmat = bktr->dmat; 1128 1129#ifdef __NetBSD__ 1130 bus_dmamem_unmap(dmat, (caddr_t)kva, dmap->dm_mapsize); 1131#else 1132 bus_dmamem_unmap(dmat, (caddr_t)kva, bktr->dm_mapsize); 1133#endif 1134 bus_dmamem_free(dmat, dmap->dm_segs, 1); 1135 bus_dmamap_destroy(dmat, dmap); 1136} 1137 1138 1139/*--------------------------------------------------------- 1140** 1141** BrookTree 848 character device driver routines 1142** 1143**--------------------------------------------------------- 1144*/ 1145 1146 1147#define VIDEO_DEV 0x00 1148#define TUNER_DEV 0x01 1149#define VBI_DEV 0x02 1150 1151#define UNIT(x) (minor((x) & 0x0f)) 1152#define FUNCTION(x) (minor((x >> 4) & 0x0f)) 1153 1154/* 1155 * 1156 */ 1157int 1158bktr_open(dev_t dev, int flags, int fmt, struct thread *td) 1159{ 1160 bktr_ptr_t bktr; 1161 int unit; 1162 1163 unit = UNIT(dev); 1164 1165 /* unit out of range */ 1166 if ((unit > bktr_cd.cd_ndevs) || (bktr_cd.cd_devs[unit] == NULL)) 1167 return(ENXIO); 1168 1169 bktr = bktr_cd.cd_devs[unit]; 1170 1171 if (!(bktr->flags & METEOR_INITALIZED)) /* device not found */ 1172 return(ENXIO); 1173 1174 switch (FUNCTION(dev)) { 1175 case VIDEO_DEV: 1176 return(video_open(bktr)); 1177 case TUNER_DEV: 1178 return(tuner_open(bktr)); 1179 case VBI_DEV: 1180 return(vbi_open(bktr)); 1181 } 1182 1183 return(ENXIO); 1184} 1185 1186 1187/* 1188 * 1189 */ 1190int 1191bktr_close(dev_t dev, int flags, int fmt, struct thread *td) 1192{ 1193 bktr_ptr_t bktr; 1194 int unit; 1195 1196 unit = UNIT(dev); 1197 1198 bktr = bktr_cd.cd_devs[unit]; 1199 1200 switch (FUNCTION(dev)) { 1201 case VIDEO_DEV: 1202 return(video_close(bktr)); 1203 case TUNER_DEV: 1204 return(tuner_close(bktr)); 1205 case VBI_DEV: 1206 return(vbi_close(bktr)); 1207 } 1208 1209 return(ENXIO); 1210} 1211 1212/* 1213 * 1214 */ 1215int 1216bktr_read(dev_t dev, struct uio *uio, int ioflag) 1217{ 1218 bktr_ptr_t bktr; 1219 int unit; 1220 1221 unit = UNIT(dev); 1222 1223 bktr = bktr_cd.cd_devs[unit]; 1224 1225 switch (FUNCTION(dev)) { 1226 case VIDEO_DEV: 1227 return(video_read(bktr, unit, dev, uio)); 1228 case VBI_DEV: 1229 return(vbi_read(bktr, uio, ioflag)); 1230 } 1231 1232 return(ENXIO); 1233} 1234 1235 1236/* 1237 * 1238 */ 1239int 1240bktr_write(dev_t dev, struct uio *uio, int ioflag) 1241{ 1242 /* operation not supported */ 1243 return(EOPNOTSUPP); 1244} 1245 1246/* 1247 * 1248 */ 1249int 1250bktr_ioctl(dev_t dev, ioctl_cmd_t cmd, caddr_t arg, int flag, struct thread *td) 1251{ 1252 bktr_ptr_t bktr; 1253 int unit; 1254 1255 unit = UNIT(dev); 1256 1257 bktr = bktr_cd.cd_devs[unit]; 1258 1259 if (bktr->bigbuf == 0) /* no frame buffer allocated (ioctl failed) */ 1260 return(ENOMEM); 1261 1262 switch (FUNCTION(dev)) { 1263 case VIDEO_DEV: 1264 return(video_ioctl(bktr, unit, cmd, arg, pr)); 1265 case TUNER_DEV: 1266 return(tuner_ioctl(bktr, unit, cmd, arg, pr)); 1267 } 1268 1269 return(ENXIO); 1270} 1271 1272/* 1273 * 1274 */ 1275paddr_t 1276bktr_mmap(dev_t dev, off_t offset, int nprot) 1277{ 1278 int unit; 1279 bktr_ptr_t bktr; 1280 1281 unit = UNIT(dev); 1282 1283 if (FUNCTION(dev) > 0) /* only allow mmap on /dev/bktr[n] */ 1284 return(-1); 1285 1286 bktr = bktr_cd.cd_devs[unit]; 1287 1288 if ((vaddr_t)offset < 0) 1289 return(-1); 1290 1291 if ((vaddr_t)offset >= bktr->alloc_pages * PAGE_SIZE) 1292 return(-1); 1293 1294#ifdef __NetBSD__ 1295 return (bus_dmamem_mmap(bktr->dmat, bktr->dm_mem->dm_segs, 1, 1296 (vaddr_t)offset, nprot, BUS_DMA_WAITOK)); 1297#else 1298 return(i386_btop(vtophys(bktr->bigbuf) + offset)); 1299#endif 1300} 1301 1302#endif /* __NetBSD__ || __OpenBSD__ */ 1303