bktr_os.c revision 107699
1/* $FreeBSD: head/sys/dev/bktr/bktr_os.c 107699 2002-12-09 09:04:09Z roger $ */ 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 * the aliases for unit 0 are automatically destroyed */ 499 destroy_dev(bktr->vbidev); 500 destroy_dev(bktr->tunerdev); 501 destroy_dev(bktr->bktrdev); 502 503 /* 504 * Deallocate resources. 505 */ 506 bus_teardown_intr(dev, bktr->res_irq, bktr->res_ih); 507 bus_release_resource(dev, SYS_RES_IRQ, bktr->irq_rid, bktr->res_irq); 508 bus_release_resource(dev, SYS_RES_MEMORY, bktr->mem_rid, bktr->res_mem); 509 510 return 0; 511} 512 513/* 514 * the shutdown routine. 515 */ 516static int 517bktr_shutdown( device_t dev ) 518{ 519 struct bktr_softc *bktr = device_get_softc(dev); 520 521 /* Disable the brooktree device */ 522 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED); 523 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED); 524 525 return 0; 526} 527 528 529/* 530 * Special Memory Allocation 531 */ 532vm_offset_t 533get_bktr_mem( int unit, unsigned size ) 534{ 535 vm_offset_t addr = 0; 536 537 addr = vm_page_alloc_contig(size, 0, 0xffffffff, 1<<24); 538 if (addr == 0) 539 addr = vm_page_alloc_contig(size, 0, 0xffffffff, PAGE_SIZE); 540 if (addr == 0) { 541 printf("bktr%d: Unable to allocate %d bytes of memory.\n", 542 unit, size); 543 } 544 545 return( addr ); 546} 547 548 549/*--------------------------------------------------------- 550** 551** BrookTree 848 character device driver routines 552** 553**--------------------------------------------------------- 554*/ 555 556#define VIDEO_DEV 0x00 557#define TUNER_DEV 0x01 558#define VBI_DEV 0x02 559 560#define UNIT(x) ((x) & 0x0f) 561#define FUNCTION(x) (x >> 4) 562 563/* 564 * 565 */ 566static int 567bktr_open( dev_t dev, int flags, int fmt, struct thread *td ) 568{ 569 bktr_ptr_t bktr; 570 int unit; 571 int result; 572 573 unit = UNIT( minor(dev) ); 574 575 /* Get the device data */ 576 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 577 if (bktr == NULL) { 578 /* the device is no longer valid/functioning */ 579 return (ENXIO); 580 } 581 582 if (!(bktr->flags & METEOR_INITALIZED)) /* device not found */ 583 return( ENXIO ); 584 585 /* Record that the device is now busy */ 586 device_busy(devclass_get_device(bktr_devclass, unit)); 587 588 589 if (bt848_card != -1) { 590 if ((bt848_card >> 8 == unit ) && 591 ( (bt848_card & 0xff) < Bt848_MAX_CARD )) { 592 if ( bktr->bt848_card != (bt848_card & 0xff) ) { 593 bktr->bt848_card = (bt848_card & 0xff); 594 probeCard(bktr, FALSE, unit); 595 } 596 } 597 } 598 599 if (bt848_tuner != -1) { 600 if ((bt848_tuner >> 8 == unit ) && 601 ( (bt848_tuner & 0xff) < Bt848_MAX_TUNER )) { 602 if ( bktr->bt848_tuner != (bt848_tuner & 0xff) ) { 603 bktr->bt848_tuner = (bt848_tuner & 0xff); 604 probeCard(bktr, FALSE, unit); 605 } 606 } 607 } 608 609 if (bt848_reverse_mute != -1) { 610 if ((bt848_reverse_mute >> 8) == unit ) { 611 bktr->reverse_mute = bt848_reverse_mute & 0xff; 612 } 613 } 614 615 if (bt848_slow_msp_audio != -1) { 616 if ((bt848_slow_msp_audio >> 8) == unit ) { 617 bktr->slow_msp_audio = (bt848_slow_msp_audio & 0xff); 618 } 619 } 620 621 switch ( FUNCTION( minor(dev) ) ) { 622 case VIDEO_DEV: 623 result = video_open( bktr ); 624 break; 625 case TUNER_DEV: 626 result = tuner_open( bktr ); 627 break; 628 case VBI_DEV: 629 result = vbi_open( bktr ); 630 break; 631 default: 632 result = ENXIO; 633 break; 634 } 635 636 /* If there was an error opening the device, undo the busy status */ 637 if (result != 0) 638 device_unbusy(devclass_get_device(bktr_devclass, unit)); 639 return( result ); 640} 641 642 643/* 644 * 645 */ 646static int 647bktr_close( dev_t dev, int flags, int fmt, struct thread *td ) 648{ 649 bktr_ptr_t bktr; 650 int unit; 651 int result; 652 653 unit = UNIT( minor(dev) ); 654 655 /* Get the device data */ 656 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 657 if (bktr == NULL) { 658 /* the device is no longer valid/functioning */ 659 return (ENXIO); 660 } 661 662 switch ( FUNCTION( minor(dev) ) ) { 663 case VIDEO_DEV: 664 result = video_close( bktr ); 665 break; 666 case TUNER_DEV: 667 result = tuner_close( bktr ); 668 break; 669 case VBI_DEV: 670 result = vbi_close( bktr ); 671 break; 672 default: 673 return (ENXIO); 674 break; 675 } 676 677 device_unbusy(devclass_get_device(bktr_devclass, unit)); 678 return( result ); 679} 680 681 682/* 683 * 684 */ 685static int 686bktr_read( dev_t dev, struct uio *uio, int ioflag ) 687{ 688 bktr_ptr_t bktr; 689 int unit; 690 691 unit = UNIT(minor(dev)); 692 693 /* Get the device data */ 694 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 695 if (bktr == NULL) { 696 /* the device is no longer valid/functioning */ 697 return (ENXIO); 698 } 699 700 switch ( FUNCTION( minor(dev) ) ) { 701 case VIDEO_DEV: 702 return( video_read( bktr, unit, dev, uio ) ); 703 case VBI_DEV: 704 return( vbi_read( bktr, uio, ioflag ) ); 705 } 706 return( ENXIO ); 707} 708 709 710/* 711 * 712 */ 713static int 714bktr_write( dev_t dev, struct uio *uio, int ioflag ) 715{ 716 return( EINVAL ); /* XXX or ENXIO ? */ 717} 718 719 720/* 721 * 722 */ 723static int 724bktr_ioctl( dev_t dev, ioctl_cmd_t cmd, caddr_t arg, int flag, struct thread *td ) 725{ 726 bktr_ptr_t bktr; 727 int unit; 728 729 unit = UNIT(minor(dev)); 730 731 /* Get the device data */ 732 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 733 if (bktr == NULL) { 734 /* the device is no longer valid/functioning */ 735 return (ENXIO); 736 } 737 738 if (bktr->bigbuf == 0) /* no frame buffer allocated (ioctl failed) */ 739 return( ENOMEM ); 740 741 switch ( FUNCTION( minor(dev) ) ) { 742 case VIDEO_DEV: 743 return( video_ioctl( bktr, unit, cmd, arg, td ) ); 744 case TUNER_DEV: 745 return( tuner_ioctl( bktr, unit, cmd, arg, td ) ); 746 } 747 748 return( ENXIO ); 749} 750 751 752/* 753 * 754 */ 755static int 756bktr_mmap( dev_t dev, vm_offset_t offset, int nprot ) 757{ 758 int unit; 759 bktr_ptr_t bktr; 760 761 unit = UNIT(minor(dev)); 762 763 if (FUNCTION(minor(dev)) > 0) /* only allow mmap on /dev/bktr[n] */ 764 return( -1 ); 765 766 /* Get the device data */ 767 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 768 if (bktr == NULL) { 769 /* the device is no longer valid/functioning */ 770 return (ENXIO); 771 } 772 773 if (nprot & PROT_EXEC) 774 return( -1 ); 775 776 if (offset < 0) 777 return( -1 ); 778 779 if (offset >= bktr->alloc_pages * PAGE_SIZE) 780 return( -1 ); 781 782 return( atop(vtophys(bktr->bigbuf) + offset) ); 783} 784 785static int 786bktr_poll( dev_t dev, int events, struct thread *td) 787{ 788 int unit; 789 bktr_ptr_t bktr; 790 int revents = 0; 791 DECLARE_INTR_MASK(s); 792 793 unit = UNIT(minor(dev)); 794 795 /* Get the device data */ 796 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 797 if (bktr == NULL) { 798 /* the device is no longer valid/functioning */ 799 return (ENXIO); 800 } 801 802 DISABLE_INTR(s); 803 804 if (events & (POLLIN | POLLRDNORM)) { 805 806 switch ( FUNCTION( minor(dev) ) ) { 807 case VBI_DEV: 808 if(bktr->vbisize == 0) 809 selrecord(td, &bktr->vbi_select); 810 else 811 revents |= events & (POLLIN | POLLRDNORM); 812 break; 813 } 814 } 815 816 ENABLE_INTR(s); 817 818 return (revents); 819} 820 821#endif /* FreeBSD 4.x specific kernel interface routines */ 822 823/*****************/ 824/* *** BSDI *** */ 825/*****************/ 826 827#if defined(__bsdi__) 828#endif /* __bsdi__ BSDI specific kernel interface routines */ 829 830 831/*****************************/ 832/* *** OpenBSD / NetBSD *** */ 833/*****************************/ 834#if defined(__NetBSD__) || defined(__OpenBSD__) 835 836#define IPL_VIDEO IPL_BIO /* XXX */ 837 838static int bktr_intr(void *arg) { return common_bktr_intr(arg); } 839 840#define bktr_open bktropen 841#define bktr_close bktrclose 842#define bktr_read bktrread 843#define bktr_write bktrwrite 844#define bktr_ioctl bktrioctl 845#define bktr_mmap bktrmmap 846 847vm_offset_t vm_page_alloc_contig(vm_offset_t, vm_offset_t, 848 vm_offset_t, vm_offset_t); 849 850#if defined(__OpenBSD__) 851static int bktr_probe(struct device *, void *, void *); 852#else 853static int bktr_probe(struct device *, struct cfdata *, void *); 854#endif 855static void bktr_attach(struct device *, struct device *, void *); 856 857struct cfattach bktr_ca = { 858 sizeof(struct bktr_softc), bktr_probe, bktr_attach 859}; 860 861#if defined(__NetBSD__) 862extern struct cfdriver bktr_cd; 863#else 864struct cfdriver bktr_cd = { 865 NULL, "bktr", DV_DULL 866}; 867#endif 868 869int 870bktr_probe(parent, match, aux) 871 struct device *parent; 872#if defined(__OpenBSD__) 873 void *match; 874#else 875 struct cfdata *match; 876#endif 877 void *aux; 878{ 879 struct pci_attach_args *pa = aux; 880 881 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_BROOKTREE && 882 (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT848 || 883 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT849 || 884 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT878 || 885 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT879)) 886 return 1; 887 888 return 0; 889} 890 891 892/* 893 * the attach routine. 894 */ 895static void 896bktr_attach(struct device *parent, struct device *self, void *aux) 897{ 898 bktr_ptr_t bktr; 899 u_long latency; 900 u_long fun; 901 unsigned int rev; 902 903#if defined(__OpenBSD__) 904 struct pci_attach_args *pa = aux; 905 pci_chipset_tag_t pc = pa->pa_pc; 906 907 pci_intr_handle_t ih; 908 const char *intrstr; 909 int retval; 910 int unit; 911 912 bktr = (bktr_ptr_t)self; 913 unit = bktr->bktr_dev.dv_unit; 914 915 bktr->pc = pa->pa_pc; 916 bktr->tag = pa->pa_tag; 917 bktr->dmat = pa->pa_dmat; 918 919 /* 920 * map memory 921 */ 922 bktr->memt = pa->pa_memt; 923 retval = pci_mem_find(pc, pa->pa_tag, PCI_MAPREG_START, 924 &bktr->phys_base, &bktr->obmemsz, NULL); 925 if (!retval) 926 retval = bus_space_map(pa->pa_memt, bktr->phys_base, 927 bktr->obmemsz, 0, &bktr->memh); 928 if (retval) { 929 printf(": couldn't map memory\n"); 930 return; 931 } 932 933 934 /* 935 * map interrupt 936 */ 937 if (pci_intr_map(pa->pa_pc, pa->pa_intrtag, pa->pa_intrpin, 938 pa->pa_intrline, &ih)) { 939 printf(": couldn't map interrupt\n"); 940 return; 941 } 942 intrstr = pci_intr_string(pa->pa_pc, ih); 943 944 bktr->ih = pci_intr_establish(pa->pa_pc, ih, IPL_VIDEO, 945 bktr_intr, bktr, bktr->bktr_dev.dv_xname); 946 if (bktr->ih == NULL) { 947 printf(": couldn't establish interrupt"); 948 if (intrstr != NULL) 949 printf(" at %s", intrstr); 950 printf("\n"); 951 return; 952 } 953 954 if (intrstr != NULL) 955 printf(": %s\n", intrstr); 956#endif /* __OpenBSD__ */ 957 958#if defined(__NetBSD__) 959 struct pci_attach_args *pa = aux; 960 pci_intr_handle_t ih; 961 const char *intrstr; 962 int retval; 963 int unit; 964 965 bktr = (bktr_ptr_t)self; 966 unit = bktr->bktr_dev.dv_unit; 967 bktr->dmat = pa->pa_dmat; 968 969 printf("\n"); 970 971 /* 972 * map memory 973 */ 974 retval = pci_mapreg_map(pa, PCI_MAPREG_START, 975 PCI_MAPREG_TYPE_MEM 976 | PCI_MAPREG_MEM_TYPE_32BIT, 0, 977 &bktr->memt, &bktr->memh, NULL, 978 &bktr->obmemsz); 979 DPR(("pci_mapreg_map: memt %x, memh %x, size %x\n", 980 bktr->memt, (u_int)bktr->memh, (u_int)bktr->obmemsz)); 981 if (retval) { 982 printf("%s: couldn't map memory\n", bktr_name(bktr)); 983 return; 984 } 985 986 /* 987 * Disable the brooktree device 988 */ 989 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED); 990 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED); 991 992 /* 993 * map interrupt 994 */ 995 if (pci_intr_map(pa->pa_pc, pa->pa_intrtag, pa->pa_intrpin, 996 pa->pa_intrline, &ih)) { 997 printf("%s: couldn't map interrupt\n", 998 bktr_name(bktr)); 999 return; 1000 } 1001 intrstr = pci_intr_string(pa->pa_pc, ih); 1002 bktr->ih = pci_intr_establish(pa->pa_pc, ih, IPL_VIDEO, 1003 bktr_intr, bktr); 1004 if (bktr->ih == NULL) { 1005 printf("%s: couldn't establish interrupt", 1006 bktr_name(bktr)); 1007 if (intrstr != NULL) 1008 printf(" at %s", intrstr); 1009 printf("\n"); 1010 return; 1011 } 1012 if (intrstr != NULL) 1013 printf("%s: interrupting at %s\n", bktr_name(bktr), 1014 intrstr); 1015#endif /* __NetBSD__ */ 1016 1017/* 1018 * PCI latency timer. 32 is a good value for 4 bus mastering slots, if 1019 * you have more than four, then 16 would probably be a better value. 1020 */ 1021#ifndef BROOKTREE_DEF_LATENCY_VALUE 1022#define BROOKTREE_DEF_LATENCY_VALUE 10 1023#endif 1024 latency = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_LATENCY_TIMER); 1025 latency = (latency >> 8) & 0xff; 1026 1027 if (!latency) { 1028 if (bootverbose) { 1029 printf("%s: PCI bus latency was 0 changing to %d", 1030 bktr_name(bktr), BROOKTREE_DEF_LATENCY_VALUE); 1031 } 1032 latency = BROOKTREE_DEF_LATENCY_VALUE; 1033 pci_conf_write(pa->pa_pc, pa->pa_tag, 1034 PCI_LATENCY_TIMER, latency<<8); 1035 } 1036 1037 1038 /* Enabled Bus Master 1039 XXX: check if all old DMA is stopped first (e.g. after warm 1040 boot) */ 1041 fun = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); 1042 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, 1043 fun | PCI_COMMAND_MASTER_ENABLE); 1044 1045 /* read the pci id and determine the card type */ 1046 fun = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_ID_REG); 1047 rev = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_CLASS_REG) & 0x000000ff; 1048 1049 common_bktr_attach(bktr, unit, fun, rev); 1050} 1051 1052 1053/* 1054 * Special Memory Allocation 1055 */ 1056vm_offset_t 1057get_bktr_mem(bktr, dmapp, size) 1058 bktr_ptr_t bktr; 1059 bus_dmamap_t *dmapp; 1060 unsigned int size; 1061{ 1062 bus_dma_tag_t dmat = bktr->dmat; 1063 bus_dma_segment_t seg; 1064 bus_size_t align; 1065 int rseg; 1066 caddr_t kva; 1067 1068 /* 1069 * Allocate a DMA area 1070 */ 1071 align = 1 << 24; 1072 if (bus_dmamem_alloc(dmat, size, align, 0, &seg, 1, 1073 &rseg, BUS_DMA_NOWAIT)) { 1074 align = PAGE_SIZE; 1075 if (bus_dmamem_alloc(dmat, size, align, 0, &seg, 1, 1076 &rseg, BUS_DMA_NOWAIT)) { 1077 printf("%s: Unable to dmamem_alloc of %d bytes\n", 1078 bktr_name(bktr), size); 1079 return 0; 1080 } 1081 } 1082 if (bus_dmamem_map(dmat, &seg, rseg, size, 1083 &kva, BUS_DMA_NOWAIT|BUS_DMA_COHERENT)) { 1084 printf("%s: Unable to dmamem_map of %d bytes\n", 1085 bktr_name(bktr), size); 1086 bus_dmamem_free(dmat, &seg, rseg); 1087 return 0; 1088 } 1089#ifdef __OpenBSD__ 1090 bktr->dm_mapsize = size; 1091#endif 1092 /* 1093 * Create and locd the DMA map for the DMA area 1094 */ 1095 if (bus_dmamap_create(dmat, size, 1, size, 0, BUS_DMA_NOWAIT, dmapp)) { 1096 printf("%s: Unable to dmamap_create of %d bytes\n", 1097 bktr_name(bktr), size); 1098 bus_dmamem_unmap(dmat, kva, size); 1099 bus_dmamem_free(dmat, &seg, rseg); 1100 return 0; 1101 } 1102 if (bus_dmamap_load(dmat, *dmapp, kva, size, NULL, BUS_DMA_NOWAIT)) { 1103 printf("%s: Unable to dmamap_load of %d bytes\n", 1104 bktr_name(bktr), size); 1105 bus_dmamem_unmap(dmat, kva, size); 1106 bus_dmamem_free(dmat, &seg, rseg); 1107 bus_dmamap_destroy(dmat, *dmapp); 1108 return 0; 1109 } 1110 return (vm_offset_t)kva; 1111} 1112 1113void 1114free_bktr_mem(bktr, dmap, kva) 1115 bktr_ptr_t bktr; 1116 bus_dmamap_t dmap; 1117 vm_offset_t kva; 1118{ 1119 bus_dma_tag_t dmat = bktr->dmat; 1120 1121#ifdef __NetBSD__ 1122 bus_dmamem_unmap(dmat, (caddr_t)kva, dmap->dm_mapsize); 1123#else 1124 bus_dmamem_unmap(dmat, (caddr_t)kva, bktr->dm_mapsize); 1125#endif 1126 bus_dmamem_free(dmat, dmap->dm_segs, 1); 1127 bus_dmamap_destroy(dmat, dmap); 1128} 1129 1130 1131/*--------------------------------------------------------- 1132** 1133** BrookTree 848 character device driver routines 1134** 1135**--------------------------------------------------------- 1136*/ 1137 1138 1139#define VIDEO_DEV 0x00 1140#define TUNER_DEV 0x01 1141#define VBI_DEV 0x02 1142 1143#define UNIT(x) (minor((x) & 0x0f)) 1144#define FUNCTION(x) (minor((x >> 4) & 0x0f)) 1145 1146/* 1147 * 1148 */ 1149int 1150bktr_open(dev_t dev, int flags, int fmt, struct thread *td) 1151{ 1152 bktr_ptr_t bktr; 1153 int unit; 1154 1155 unit = UNIT(dev); 1156 1157 /* unit out of range */ 1158 if ((unit > bktr_cd.cd_ndevs) || (bktr_cd.cd_devs[unit] == NULL)) 1159 return(ENXIO); 1160 1161 bktr = bktr_cd.cd_devs[unit]; 1162 1163 if (!(bktr->flags & METEOR_INITALIZED)) /* device not found */ 1164 return(ENXIO); 1165 1166 switch (FUNCTION(dev)) { 1167 case VIDEO_DEV: 1168 return(video_open(bktr)); 1169 case TUNER_DEV: 1170 return(tuner_open(bktr)); 1171 case VBI_DEV: 1172 return(vbi_open(bktr)); 1173 } 1174 1175 return(ENXIO); 1176} 1177 1178 1179/* 1180 * 1181 */ 1182int 1183bktr_close(dev_t dev, int flags, int fmt, struct thread *td) 1184{ 1185 bktr_ptr_t bktr; 1186 int unit; 1187 1188 unit = UNIT(dev); 1189 1190 bktr = bktr_cd.cd_devs[unit]; 1191 1192 switch (FUNCTION(dev)) { 1193 case VIDEO_DEV: 1194 return(video_close(bktr)); 1195 case TUNER_DEV: 1196 return(tuner_close(bktr)); 1197 case VBI_DEV: 1198 return(vbi_close(bktr)); 1199 } 1200 1201 return(ENXIO); 1202} 1203 1204/* 1205 * 1206 */ 1207int 1208bktr_read(dev_t dev, struct uio *uio, int ioflag) 1209{ 1210 bktr_ptr_t bktr; 1211 int unit; 1212 1213 unit = UNIT(dev); 1214 1215 bktr = bktr_cd.cd_devs[unit]; 1216 1217 switch (FUNCTION(dev)) { 1218 case VIDEO_DEV: 1219 return(video_read(bktr, unit, dev, uio)); 1220 case VBI_DEV: 1221 return(vbi_read(bktr, uio, ioflag)); 1222 } 1223 1224 return(ENXIO); 1225} 1226 1227 1228/* 1229 * 1230 */ 1231int 1232bktr_write(dev_t dev, struct uio *uio, int ioflag) 1233{ 1234 /* operation not supported */ 1235 return(EOPNOTSUPP); 1236} 1237 1238/* 1239 * 1240 */ 1241int 1242bktr_ioctl(dev_t dev, ioctl_cmd_t cmd, caddr_t arg, int flag, struct thread *td) 1243{ 1244 bktr_ptr_t bktr; 1245 int unit; 1246 1247 unit = UNIT(dev); 1248 1249 bktr = bktr_cd.cd_devs[unit]; 1250 1251 if (bktr->bigbuf == 0) /* no frame buffer allocated (ioctl failed) */ 1252 return(ENOMEM); 1253 1254 switch (FUNCTION(dev)) { 1255 case VIDEO_DEV: 1256 return(video_ioctl(bktr, unit, cmd, arg, pr)); 1257 case TUNER_DEV: 1258 return(tuner_ioctl(bktr, unit, cmd, arg, pr)); 1259 } 1260 1261 return(ENXIO); 1262} 1263 1264/* 1265 * 1266 */ 1267paddr_t 1268bktr_mmap(dev_t dev, off_t offset, int nprot) 1269{ 1270 int unit; 1271 bktr_ptr_t bktr; 1272 1273 unit = UNIT(dev); 1274 1275 if (FUNCTION(dev) > 0) /* only allow mmap on /dev/bktr[n] */ 1276 return(-1); 1277 1278 bktr = bktr_cd.cd_devs[unit]; 1279 1280 if ((vaddr_t)offset < 0) 1281 return(-1); 1282 1283 if ((vaddr_t)offset >= bktr->alloc_pages * PAGE_SIZE) 1284 return(-1); 1285 1286#ifdef __NetBSD__ 1287 return (bus_dmamem_mmap(bktr->dmat, bktr->dm_mem->dm_segs, 1, 1288 (vaddr_t)offset, nprot, BUS_DMA_WAITOK)); 1289#else 1290 return(i386_btop(vtophys(bktr->bigbuf) + offset)); 1291#endif 1292} 1293 1294#endif /* __NetBSD__ || __OpenBSD__ */ 1295