bktr_os.c revision 115556
1/* $FreeBSD: head/sys/dev/bktr/bktr_os.c 115556 2003-05-31 20:41:52Z 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 .d_open = bktr_open, 251 .d_close = bktr_close, 252 .d_read = bktr_read, 253 .d_write = bktr_write, 254 .d_ioctl = bktr_ioctl, 255 .d_poll = bktr_poll, 256 .d_mmap = bktr_mmap, 257 .d_name = "bktr", 258 .d_maj = CDEV_MAJOR, 259}; 260 261DRIVER_MODULE(bktr, pci, bktr_driver, bktr_devclass, 0, 0); 262#if (__FreeBSD_version > 410000) 263MODULE_DEPEND(bktr, bktr_mem, 1,1,1); 264MODULE_VERSION(bktr, 1); 265#endif 266 267 268/* 269 * the boot time probe routine. 270 */ 271static int 272bktr_probe( device_t dev ) 273{ 274 unsigned int type = pci_get_devid(dev); 275 unsigned int rev = pci_get_revid(dev); 276 277 if (PCI_VENDOR(type) == PCI_VENDOR_BROOKTREE) 278 { 279 switch (PCI_PRODUCT(type)) { 280 case PCI_PRODUCT_BROOKTREE_BT848: 281 if (rev == 0x12) 282 device_set_desc(dev, "BrookTree 848A"); 283 else 284 device_set_desc(dev, "BrookTree 848"); 285 return 0; 286 case PCI_PRODUCT_BROOKTREE_BT849: 287 device_set_desc(dev, "BrookTree 849A"); 288 return 0; 289 case PCI_PRODUCT_BROOKTREE_BT878: 290 device_set_desc(dev, "BrookTree 878"); 291 return 0; 292 case PCI_PRODUCT_BROOKTREE_BT879: 293 device_set_desc(dev, "BrookTree 879"); 294 return 0; 295 } 296 }; 297 298 return ENXIO; 299} 300 301 302/* 303 * the attach routine. 304 */ 305static int 306bktr_attach( device_t dev ) 307{ 308 u_long latency; 309 u_long fun; 310 u_long val; 311 unsigned int rev; 312 unsigned int unit; 313 int error = 0; 314#ifdef BROOKTREE_IRQ 315 u_long old_irq, new_irq; 316#endif 317 318 struct bktr_softc *bktr = device_get_softc(dev); 319 320 unit = device_get_unit(dev); 321 322 /* build the device name for bktr_name() */ 323 snprintf(bktr->bktr_xname, sizeof(bktr->bktr_xname), "bktr%d",unit); 324 325 /* 326 * Enable bus mastering and Memory Mapped device 327 */ 328 val = pci_read_config(dev, PCIR_COMMAND, 4); 329 val |= (PCIM_CMD_MEMEN|PCIM_CMD_BUSMASTEREN); 330 pci_write_config(dev, PCIR_COMMAND, val, 4); 331 332 /* 333 * Map control/status registers. 334 */ 335 bktr->mem_rid = PCIR_MAPS; 336 bktr->res_mem = bus_alloc_resource(dev, SYS_RES_MEMORY, &bktr->mem_rid, 337 0, ~0, 1, RF_ACTIVE); 338 339 340 if (!bktr->res_mem) { 341 device_printf(dev, "could not map memory\n"); 342 error = ENXIO; 343 goto fail; 344 } 345 bktr->memt = rman_get_bustag(bktr->res_mem); 346 bktr->memh = rman_get_bushandle(bktr->res_mem); 347 348 349 /* 350 * Disable the brooktree device 351 */ 352 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED); 353 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED); 354 355 356#ifdef BROOKTREE_IRQ /* from the configuration file */ 357 old_irq = pci_conf_read(tag, PCI_INTERRUPT_REG); 358 pci_conf_write(tag, PCI_INTERRUPT_REG, BROOKTREE_IRQ); 359 new_irq = pci_conf_read(tag, PCI_INTERRUPT_REG); 360 printf("bktr%d: attach: irq changed from %d to %d\n", 361 unit, (old_irq & 0xff), (new_irq & 0xff)); 362#endif 363 364 /* 365 * Allocate our interrupt. 366 */ 367 bktr->irq_rid = 0; 368 bktr->res_irq = bus_alloc_resource(dev, SYS_RES_IRQ, &bktr->irq_rid, 369 0, ~0, 1, RF_SHAREABLE | RF_ACTIVE); 370 if (bktr->res_irq == NULL) { 371 device_printf(dev, "could not map interrupt\n"); 372 error = ENXIO; 373 goto fail; 374 } 375 376 error = bus_setup_intr(dev, bktr->res_irq, INTR_TYPE_TTY, 377 bktr_intr, bktr, &bktr->res_ih); 378 if (error) { 379 device_printf(dev, "could not setup irq\n"); 380 goto fail; 381 382 } 383 384 385 /* Update the Device Control Register */ 386 /* on Bt878 and Bt879 cards */ 387 fun = pci_read_config( dev, 0x40, 2); 388 fun = fun | 1; /* Enable writes to the sub-system vendor ID */ 389 390#if defined( BKTR_430_FX_MODE ) 391 if (bootverbose) printf("Using 430 FX chipset compatibilty mode\n"); 392 fun = fun | 2; /* Enable Intel 430 FX compatibility mode */ 393#endif 394 395#if defined( BKTR_SIS_VIA_MODE ) 396 if (bootverbose) printf("Using SiS/VIA chipset compatibilty mode\n"); 397 fun = fun | 4; /* Enable SiS/VIA compatibility mode (usefull for 398 OPTi chipset motherboards too */ 399#endif 400 pci_write_config(dev, 0x40, fun, 2); 401 402#if defined(BKTR_USE_FREEBSD_SMBUS) 403 if (bt848_i2c_attach(dev)) 404 printf("bktr%d: i2c_attach: can't attach\n", unit); 405#endif 406 407/* 408 * PCI latency timer. 32 is a good value for 4 bus mastering slots, if 409 * you have more than four, then 16 would probably be a better value. 410 */ 411#ifndef BROOKTREE_DEF_LATENCY_VALUE 412#define BROOKTREE_DEF_LATENCY_VALUE 10 413#endif 414 latency = pci_read_config(dev, PCI_LATENCY_TIMER, 4); 415 latency = (latency >> 8) & 0xff; 416 if ( bootverbose ) { 417 if (latency) 418 printf("brooktree%d: PCI bus latency is", unit); 419 else 420 printf("brooktree%d: PCI bus latency was 0 changing to", 421 unit); 422 } 423 if ( !latency ) { 424 latency = BROOKTREE_DEF_LATENCY_VALUE; 425 pci_write_config(dev, PCI_LATENCY_TIMER, latency<<8, 4); 426 } 427 if ( bootverbose ) { 428 printf(" %d.\n", (int) latency); 429 } 430 431 /* read the pci device id and revision id */ 432 fun = pci_get_devid(dev); 433 rev = pci_get_revid(dev); 434 435 /* call the common attach code */ 436 common_bktr_attach( bktr, unit, fun, rev ); 437 438 /* make the device entries */ 439 bktr->bktrdev = make_dev(&bktr_cdevsw, unit, 440 0, 0, 0444, "bktr%d", unit); 441 bktr->tunerdev= make_dev(&bktr_cdevsw, unit+16, 442 0, 0, 0444, "tuner%d", unit); 443 bktr->vbidev = make_dev(&bktr_cdevsw, unit+32, 444 0, 0, 0444, "vbi%d" , unit); 445 446 447 /* if this is unit 0 (/dev/bktr0, /dev/tuner0, /dev/vbi0) then make */ 448 /* alias entries to /dev/bktr /dev/tuner and /dev/vbi */ 449#if (__FreeBSD_version >=500000) 450 if (unit == 0) { 451 bktr->bktrdev_alias = make_dev_alias(bktr->bktrdev, "bktr"); 452 bktr->tunerdev_alias= make_dev_alias(bktr->tunerdev, "tuner"); 453 bktr->vbidev_alias = make_dev_alias(bktr->vbidev, "vbi"); 454 } 455#endif 456 457 return 0; 458 459fail: 460 if (bktr->res_irq) 461 bus_release_resource(dev, SYS_RES_IRQ, bktr->irq_rid, bktr->res_irq); 462 if (bktr->res_mem) 463 bus_release_resource(dev, SYS_RES_IRQ, bktr->mem_rid, bktr->res_mem); 464 return error; 465 466} 467 468/* 469 * the detach routine. 470 */ 471static int 472bktr_detach( device_t dev ) 473{ 474 struct bktr_softc *bktr = device_get_softc(dev); 475 476 /* Disable the brooktree device */ 477 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED); 478 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED); 479 480#if defined(BKTR_USE_FREEBSD_SMBUS) 481 if (bt848_i2c_detach(dev)) 482 printf("bktr%d: i2c_attach: can't attach\n", 483 device_get_unit(dev)); 484#endif 485 486 /* Note: We do not free memory for RISC programs, grab buffer, vbi buffers */ 487 /* The memory is retained by the bktr_mem module so we can unload and */ 488 /* then reload the main bktr driver module */ 489 490 /* Unregister the /dev/bktrN, tunerN and vbiN devices, 491 * the aliases for unit 0 are automatically destroyed */ 492 destroy_dev(bktr->vbidev); 493 destroy_dev(bktr->tunerdev); 494 destroy_dev(bktr->bktrdev); 495 496 /* 497 * Deallocate resources. 498 */ 499 bus_teardown_intr(dev, bktr->res_irq, bktr->res_ih); 500 bus_release_resource(dev, SYS_RES_IRQ, bktr->irq_rid, bktr->res_irq); 501 bus_release_resource(dev, SYS_RES_MEMORY, bktr->mem_rid, bktr->res_mem); 502 503 return 0; 504} 505 506/* 507 * the shutdown routine. 508 */ 509static int 510bktr_shutdown( device_t dev ) 511{ 512 struct bktr_softc *bktr = device_get_softc(dev); 513 514 /* Disable the brooktree device */ 515 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED); 516 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED); 517 518 return 0; 519} 520 521 522/* 523 * Special Memory Allocation 524 */ 525vm_offset_t 526get_bktr_mem( int unit, unsigned size ) 527{ 528 vm_offset_t addr = 0; 529 530 addr = vm_page_alloc_contig(size, 0, 0xffffffff, 1<<24); 531 if (addr == 0) 532 addr = vm_page_alloc_contig(size, 0, 0xffffffff, PAGE_SIZE); 533 if (addr == 0) { 534 printf("bktr%d: Unable to allocate %d bytes of memory.\n", 535 unit, size); 536 } 537 538 return( addr ); 539} 540 541 542/*--------------------------------------------------------- 543** 544** BrookTree 848 character device driver routines 545** 546**--------------------------------------------------------- 547*/ 548 549#define VIDEO_DEV 0x00 550#define TUNER_DEV 0x01 551#define VBI_DEV 0x02 552 553#define UNIT(x) ((x) & 0x0f) 554#define FUNCTION(x) (x >> 4) 555 556/* 557 * 558 */ 559static int 560bktr_open( dev_t dev, int flags, int fmt, struct thread *td ) 561{ 562 bktr_ptr_t bktr; 563 int unit; 564 int result; 565 566 unit = UNIT( minor(dev) ); 567 568 /* Get the device data */ 569 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 570 if (bktr == NULL) { 571 /* the device is no longer valid/functioning */ 572 return (ENXIO); 573 } 574 575 if (!(bktr->flags & METEOR_INITALIZED)) /* device not found */ 576 return( ENXIO ); 577 578 /* Record that the device is now busy */ 579 device_busy(devclass_get_device(bktr_devclass, unit)); 580 581 582 if (bt848_card != -1) { 583 if ((bt848_card >> 8 == unit ) && 584 ( (bt848_card & 0xff) < Bt848_MAX_CARD )) { 585 if ( bktr->bt848_card != (bt848_card & 0xff) ) { 586 bktr->bt848_card = (bt848_card & 0xff); 587 probeCard(bktr, FALSE, unit); 588 } 589 } 590 } 591 592 if (bt848_tuner != -1) { 593 if ((bt848_tuner >> 8 == unit ) && 594 ( (bt848_tuner & 0xff) < Bt848_MAX_TUNER )) { 595 if ( bktr->bt848_tuner != (bt848_tuner & 0xff) ) { 596 bktr->bt848_tuner = (bt848_tuner & 0xff); 597 probeCard(bktr, FALSE, unit); 598 } 599 } 600 } 601 602 if (bt848_reverse_mute != -1) { 603 if ((bt848_reverse_mute >> 8) == unit ) { 604 bktr->reverse_mute = bt848_reverse_mute & 0xff; 605 } 606 } 607 608 if (bt848_slow_msp_audio != -1) { 609 if ((bt848_slow_msp_audio >> 8) == unit ) { 610 bktr->slow_msp_audio = (bt848_slow_msp_audio & 0xff); 611 } 612 } 613 614 switch ( FUNCTION( minor(dev) ) ) { 615 case VIDEO_DEV: 616 result = video_open( bktr ); 617 break; 618 case TUNER_DEV: 619 result = tuner_open( bktr ); 620 break; 621 case VBI_DEV: 622 result = vbi_open( bktr ); 623 break; 624 default: 625 result = ENXIO; 626 break; 627 } 628 629 /* If there was an error opening the device, undo the busy status */ 630 if (result != 0) 631 device_unbusy(devclass_get_device(bktr_devclass, unit)); 632 return( result ); 633} 634 635 636/* 637 * 638 */ 639static int 640bktr_close( dev_t dev, int flags, int fmt, struct thread *td ) 641{ 642 bktr_ptr_t bktr; 643 int unit; 644 int result; 645 646 unit = UNIT( minor(dev) ); 647 648 /* Get the device data */ 649 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 650 if (bktr == NULL) { 651 /* the device is no longer valid/functioning */ 652 return (ENXIO); 653 } 654 655 switch ( FUNCTION( minor(dev) ) ) { 656 case VIDEO_DEV: 657 result = video_close( bktr ); 658 break; 659 case TUNER_DEV: 660 result = tuner_close( bktr ); 661 break; 662 case VBI_DEV: 663 result = vbi_close( bktr ); 664 break; 665 default: 666 return (ENXIO); 667 break; 668 } 669 670 device_unbusy(devclass_get_device(bktr_devclass, unit)); 671 return( result ); 672} 673 674 675/* 676 * 677 */ 678static int 679bktr_read( dev_t dev, struct uio *uio, int ioflag ) 680{ 681 bktr_ptr_t bktr; 682 int unit; 683 684 unit = UNIT(minor(dev)); 685 686 /* Get the device data */ 687 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 688 if (bktr == NULL) { 689 /* the device is no longer valid/functioning */ 690 return (ENXIO); 691 } 692 693 switch ( FUNCTION( minor(dev) ) ) { 694 case VIDEO_DEV: 695 return( video_read( bktr, unit, dev, uio ) ); 696 case VBI_DEV: 697 return( vbi_read( bktr, uio, ioflag ) ); 698 } 699 return( ENXIO ); 700} 701 702 703/* 704 * 705 */ 706static int 707bktr_write( dev_t dev, struct uio *uio, int ioflag ) 708{ 709 return( EINVAL ); /* XXX or ENXIO ? */ 710} 711 712 713/* 714 * 715 */ 716static int 717bktr_ioctl( dev_t dev, ioctl_cmd_t cmd, caddr_t arg, int flag, struct thread *td ) 718{ 719 bktr_ptr_t bktr; 720 int unit; 721 722 unit = UNIT(minor(dev)); 723 724 /* Get the device data */ 725 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 726 if (bktr == NULL) { 727 /* the device is no longer valid/functioning */ 728 return (ENXIO); 729 } 730 731 if (bktr->bigbuf == 0) /* no frame buffer allocated (ioctl failed) */ 732 return( ENOMEM ); 733 734 switch ( FUNCTION( minor(dev) ) ) { 735 case VIDEO_DEV: 736 return( video_ioctl( bktr, unit, cmd, arg, td ) ); 737 case TUNER_DEV: 738 return( tuner_ioctl( bktr, unit, cmd, arg, td ) ); 739 } 740 741 return( ENXIO ); 742} 743 744 745/* 746 * 747 */ 748static int 749bktr_mmap( dev_t dev, vm_offset_t offset, vm_paddr_t *paddr, int nprot ) 750{ 751 int unit; 752 bktr_ptr_t bktr; 753 754 unit = UNIT(minor(dev)); 755 756 if (FUNCTION(minor(dev)) > 0) /* only allow mmap on /dev/bktr[n] */ 757 return( -1 ); 758 759 /* Get the device data */ 760 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 761 if (bktr == NULL) { 762 /* the device is no longer valid/functioning */ 763 return (ENXIO); 764 } 765 766 if (nprot & PROT_EXEC) 767 return( -1 ); 768 769 if (offset < 0) 770 return( -1 ); 771 772 if (offset >= bktr->alloc_pages * PAGE_SIZE) 773 return( -1 ); 774 775 *paddr = vtophys(bktr->bigbuf) + offset; 776 return( 0 ); 777} 778 779static int 780bktr_poll( dev_t dev, int events, struct thread *td) 781{ 782 int unit; 783 bktr_ptr_t bktr; 784 int revents = 0; 785 DECLARE_INTR_MASK(s); 786 787 unit = UNIT(minor(dev)); 788 789 /* Get the device data */ 790 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 791 if (bktr == NULL) { 792 /* the device is no longer valid/functioning */ 793 return (ENXIO); 794 } 795 796 DISABLE_INTR(s); 797 798 if (events & (POLLIN | POLLRDNORM)) { 799 800 switch ( FUNCTION( minor(dev) ) ) { 801 case VBI_DEV: 802 if(bktr->vbisize == 0) 803 selrecord(td, &bktr->vbi_select); 804 else 805 revents |= events & (POLLIN | POLLRDNORM); 806 break; 807 } 808 } 809 810 ENABLE_INTR(s); 811 812 return (revents); 813} 814 815#endif /* FreeBSD 4.x specific kernel interface routines */ 816 817/*****************/ 818/* *** BSDI *** */ 819/*****************/ 820 821#if defined(__bsdi__) 822#endif /* __bsdi__ BSDI specific kernel interface routines */ 823 824 825/*****************************/ 826/* *** OpenBSD / NetBSD *** */ 827/*****************************/ 828#if defined(__NetBSD__) || defined(__OpenBSD__) 829 830#define IPL_VIDEO IPL_BIO /* XXX */ 831 832static int bktr_intr(void *arg) { return common_bktr_intr(arg); } 833 834#define bktr_open bktropen 835#define bktr_close bktrclose 836#define bktr_read bktrread 837#define bktr_write bktrwrite 838#define bktr_ioctl bktrioctl 839#define bktr_mmap bktrmmap 840 841vm_offset_t vm_page_alloc_contig(vm_offset_t, vm_offset_t, 842 vm_offset_t, vm_offset_t); 843 844#if defined(__OpenBSD__) 845static int bktr_probe(struct device *, void *, void *); 846#else 847static int bktr_probe(struct device *, struct cfdata *, void *); 848#endif 849static void bktr_attach(struct device *, struct device *, void *); 850 851struct cfattach bktr_ca = { 852 sizeof(struct bktr_softc), bktr_probe, bktr_attach 853}; 854 855#if defined(__NetBSD__) 856extern struct cfdriver bktr_cd; 857#else 858struct cfdriver bktr_cd = { 859 NULL, "bktr", DV_DULL 860}; 861#endif 862 863int 864bktr_probe(parent, match, aux) 865 struct device *parent; 866#if defined(__OpenBSD__) 867 void *match; 868#else 869 struct cfdata *match; 870#endif 871 void *aux; 872{ 873 struct pci_attach_args *pa = aux; 874 875 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_BROOKTREE && 876 (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT848 || 877 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT849 || 878 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT878 || 879 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT879)) 880 return 1; 881 882 return 0; 883} 884 885 886/* 887 * the attach routine. 888 */ 889static void 890bktr_attach(struct device *parent, struct device *self, void *aux) 891{ 892 bktr_ptr_t bktr; 893 u_long latency; 894 u_long fun; 895 unsigned int rev; 896 897#if defined(__OpenBSD__) 898 struct pci_attach_args *pa = aux; 899 pci_chipset_tag_t pc = pa->pa_pc; 900 901 pci_intr_handle_t ih; 902 const char *intrstr; 903 int retval; 904 int unit; 905 906 bktr = (bktr_ptr_t)self; 907 unit = bktr->bktr_dev.dv_unit; 908 909 bktr->pc = pa->pa_pc; 910 bktr->tag = pa->pa_tag; 911 bktr->dmat = pa->pa_dmat; 912 913 /* 914 * map memory 915 */ 916 bktr->memt = pa->pa_memt; 917 retval = pci_mem_find(pc, pa->pa_tag, PCI_MAPREG_START, 918 &bktr->phys_base, &bktr->obmemsz, NULL); 919 if (!retval) 920 retval = bus_space_map(pa->pa_memt, bktr->phys_base, 921 bktr->obmemsz, 0, &bktr->memh); 922 if (retval) { 923 printf(": couldn't map memory\n"); 924 return; 925 } 926 927 928 /* 929 * map interrupt 930 */ 931 if (pci_intr_map(pa->pa_pc, pa->pa_intrtag, pa->pa_intrpin, 932 pa->pa_intrline, &ih)) { 933 printf(": couldn't map interrupt\n"); 934 return; 935 } 936 intrstr = pci_intr_string(pa->pa_pc, ih); 937 938 bktr->ih = pci_intr_establish(pa->pa_pc, ih, IPL_VIDEO, 939 bktr_intr, bktr, bktr->bktr_dev.dv_xname); 940 if (bktr->ih == NULL) { 941 printf(": couldn't establish interrupt"); 942 if (intrstr != NULL) 943 printf(" at %s", intrstr); 944 printf("\n"); 945 return; 946 } 947 948 if (intrstr != NULL) 949 printf(": %s\n", intrstr); 950#endif /* __OpenBSD__ */ 951 952#if defined(__NetBSD__) 953 struct pci_attach_args *pa = aux; 954 pci_intr_handle_t ih; 955 const char *intrstr; 956 int retval; 957 int unit; 958 959 bktr = (bktr_ptr_t)self; 960 unit = bktr->bktr_dev.dv_unit; 961 bktr->dmat = pa->pa_dmat; 962 963 printf("\n"); 964 965 /* 966 * map memory 967 */ 968 retval = pci_mapreg_map(pa, PCI_MAPREG_START, 969 PCI_MAPREG_TYPE_MEM 970 | PCI_MAPREG_MEM_TYPE_32BIT, 0, 971 &bktr->memt, &bktr->memh, NULL, 972 &bktr->obmemsz); 973 DPR(("pci_mapreg_map: memt %x, memh %x, size %x\n", 974 bktr->memt, (u_int)bktr->memh, (u_int)bktr->obmemsz)); 975 if (retval) { 976 printf("%s: couldn't map memory\n", bktr_name(bktr)); 977 return; 978 } 979 980 /* 981 * Disable the brooktree device 982 */ 983 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED); 984 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED); 985 986 /* 987 * map interrupt 988 */ 989 if (pci_intr_map(pa->pa_pc, pa->pa_intrtag, pa->pa_intrpin, 990 pa->pa_intrline, &ih)) { 991 printf("%s: couldn't map interrupt\n", 992 bktr_name(bktr)); 993 return; 994 } 995 intrstr = pci_intr_string(pa->pa_pc, ih); 996 bktr->ih = pci_intr_establish(pa->pa_pc, ih, IPL_VIDEO, 997 bktr_intr, bktr); 998 if (bktr->ih == NULL) { 999 printf("%s: couldn't establish interrupt", 1000 bktr_name(bktr)); 1001 if (intrstr != NULL) 1002 printf(" at %s", intrstr); 1003 printf("\n"); 1004 return; 1005 } 1006 if (intrstr != NULL) 1007 printf("%s: interrupting at %s\n", bktr_name(bktr), 1008 intrstr); 1009#endif /* __NetBSD__ */ 1010 1011/* 1012 * PCI latency timer. 32 is a good value for 4 bus mastering slots, if 1013 * you have more than four, then 16 would probably be a better value. 1014 */ 1015#ifndef BROOKTREE_DEF_LATENCY_VALUE 1016#define BROOKTREE_DEF_LATENCY_VALUE 10 1017#endif 1018 latency = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_LATENCY_TIMER); 1019 latency = (latency >> 8) & 0xff; 1020 1021 if (!latency) { 1022 if (bootverbose) { 1023 printf("%s: PCI bus latency was 0 changing to %d", 1024 bktr_name(bktr), BROOKTREE_DEF_LATENCY_VALUE); 1025 } 1026 latency = BROOKTREE_DEF_LATENCY_VALUE; 1027 pci_conf_write(pa->pa_pc, pa->pa_tag, 1028 PCI_LATENCY_TIMER, latency<<8); 1029 } 1030 1031 1032 /* Enabled Bus Master 1033 XXX: check if all old DMA is stopped first (e.g. after warm 1034 boot) */ 1035 fun = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); 1036 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, 1037 fun | PCI_COMMAND_MASTER_ENABLE); 1038 1039 /* read the pci id and determine the card type */ 1040 fun = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_ID_REG); 1041 rev = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_CLASS_REG) & 0x000000ff; 1042 1043 common_bktr_attach(bktr, unit, fun, rev); 1044} 1045 1046 1047/* 1048 * Special Memory Allocation 1049 */ 1050vm_offset_t 1051get_bktr_mem(bktr, dmapp, size) 1052 bktr_ptr_t bktr; 1053 bus_dmamap_t *dmapp; 1054 unsigned int size; 1055{ 1056 bus_dma_tag_t dmat = bktr->dmat; 1057 bus_dma_segment_t seg; 1058 bus_size_t align; 1059 int rseg; 1060 caddr_t kva; 1061 1062 /* 1063 * Allocate a DMA area 1064 */ 1065 align = 1 << 24; 1066 if (bus_dmamem_alloc(dmat, size, align, 0, &seg, 1, 1067 &rseg, BUS_DMA_NOWAIT)) { 1068 align = PAGE_SIZE; 1069 if (bus_dmamem_alloc(dmat, size, align, 0, &seg, 1, 1070 &rseg, BUS_DMA_NOWAIT)) { 1071 printf("%s: Unable to dmamem_alloc of %d bytes\n", 1072 bktr_name(bktr), size); 1073 return 0; 1074 } 1075 } 1076 if (bus_dmamem_map(dmat, &seg, rseg, size, 1077 &kva, BUS_DMA_NOWAIT|BUS_DMA_COHERENT)) { 1078 printf("%s: Unable to dmamem_map of %d bytes\n", 1079 bktr_name(bktr), size); 1080 bus_dmamem_free(dmat, &seg, rseg); 1081 return 0; 1082 } 1083#ifdef __OpenBSD__ 1084 bktr->dm_mapsize = size; 1085#endif 1086 /* 1087 * Create and locd the DMA map for the DMA area 1088 */ 1089 if (bus_dmamap_create(dmat, size, 1, size, 0, BUS_DMA_NOWAIT, dmapp)) { 1090 printf("%s: Unable to dmamap_create of %d bytes\n", 1091 bktr_name(bktr), size); 1092 bus_dmamem_unmap(dmat, kva, size); 1093 bus_dmamem_free(dmat, &seg, rseg); 1094 return 0; 1095 } 1096 if (bus_dmamap_load(dmat, *dmapp, kva, size, NULL, BUS_DMA_NOWAIT)) { 1097 printf("%s: Unable to dmamap_load of %d bytes\n", 1098 bktr_name(bktr), size); 1099 bus_dmamem_unmap(dmat, kva, size); 1100 bus_dmamem_free(dmat, &seg, rseg); 1101 bus_dmamap_destroy(dmat, *dmapp); 1102 return 0; 1103 } 1104 return (vm_offset_t)kva; 1105} 1106 1107void 1108free_bktr_mem(bktr, dmap, kva) 1109 bktr_ptr_t bktr; 1110 bus_dmamap_t dmap; 1111 vm_offset_t kva; 1112{ 1113 bus_dma_tag_t dmat = bktr->dmat; 1114 1115#ifdef __NetBSD__ 1116 bus_dmamem_unmap(dmat, (caddr_t)kva, dmap->dm_mapsize); 1117#else 1118 bus_dmamem_unmap(dmat, (caddr_t)kva, bktr->dm_mapsize); 1119#endif 1120 bus_dmamem_free(dmat, dmap->dm_segs, 1); 1121 bus_dmamap_destroy(dmat, dmap); 1122} 1123 1124 1125/*--------------------------------------------------------- 1126** 1127** BrookTree 848 character device driver routines 1128** 1129**--------------------------------------------------------- 1130*/ 1131 1132 1133#define VIDEO_DEV 0x00 1134#define TUNER_DEV 0x01 1135#define VBI_DEV 0x02 1136 1137#define UNIT(x) (minor((x) & 0x0f)) 1138#define FUNCTION(x) (minor((x >> 4) & 0x0f)) 1139 1140/* 1141 * 1142 */ 1143int 1144bktr_open(dev_t dev, int flags, int fmt, struct thread *td) 1145{ 1146 bktr_ptr_t bktr; 1147 int unit; 1148 1149 unit = UNIT(dev); 1150 1151 /* unit out of range */ 1152 if ((unit > bktr_cd.cd_ndevs) || (bktr_cd.cd_devs[unit] == NULL)) 1153 return(ENXIO); 1154 1155 bktr = bktr_cd.cd_devs[unit]; 1156 1157 if (!(bktr->flags & METEOR_INITALIZED)) /* device not found */ 1158 return(ENXIO); 1159 1160 switch (FUNCTION(dev)) { 1161 case VIDEO_DEV: 1162 return(video_open(bktr)); 1163 case TUNER_DEV: 1164 return(tuner_open(bktr)); 1165 case VBI_DEV: 1166 return(vbi_open(bktr)); 1167 } 1168 1169 return(ENXIO); 1170} 1171 1172 1173/* 1174 * 1175 */ 1176int 1177bktr_close(dev_t dev, int flags, int fmt, struct thread *td) 1178{ 1179 bktr_ptr_t bktr; 1180 int unit; 1181 1182 unit = UNIT(dev); 1183 1184 bktr = bktr_cd.cd_devs[unit]; 1185 1186 switch (FUNCTION(dev)) { 1187 case VIDEO_DEV: 1188 return(video_close(bktr)); 1189 case TUNER_DEV: 1190 return(tuner_close(bktr)); 1191 case VBI_DEV: 1192 return(vbi_close(bktr)); 1193 } 1194 1195 return(ENXIO); 1196} 1197 1198/* 1199 * 1200 */ 1201int 1202bktr_read(dev_t dev, struct uio *uio, int ioflag) 1203{ 1204 bktr_ptr_t bktr; 1205 int unit; 1206 1207 unit = UNIT(dev); 1208 1209 bktr = bktr_cd.cd_devs[unit]; 1210 1211 switch (FUNCTION(dev)) { 1212 case VIDEO_DEV: 1213 return(video_read(bktr, unit, dev, uio)); 1214 case VBI_DEV: 1215 return(vbi_read(bktr, uio, ioflag)); 1216 } 1217 1218 return(ENXIO); 1219} 1220 1221 1222/* 1223 * 1224 */ 1225int 1226bktr_write(dev_t dev, struct uio *uio, int ioflag) 1227{ 1228 /* operation not supported */ 1229 return(EOPNOTSUPP); 1230} 1231 1232/* 1233 * 1234 */ 1235int 1236bktr_ioctl(dev_t dev, ioctl_cmd_t cmd, caddr_t arg, int flag, struct thread *td) 1237{ 1238 bktr_ptr_t bktr; 1239 int unit; 1240 1241 unit = UNIT(dev); 1242 1243 bktr = bktr_cd.cd_devs[unit]; 1244 1245 if (bktr->bigbuf == 0) /* no frame buffer allocated (ioctl failed) */ 1246 return(ENOMEM); 1247 1248 switch (FUNCTION(dev)) { 1249 case VIDEO_DEV: 1250 return(video_ioctl(bktr, unit, cmd, arg, pr)); 1251 case TUNER_DEV: 1252 return(tuner_ioctl(bktr, unit, cmd, arg, pr)); 1253 } 1254 1255 return(ENXIO); 1256} 1257 1258/* 1259 * 1260 */ 1261paddr_t 1262bktr_mmap(dev_t dev, off_t offset, int nprot) 1263{ 1264 int unit; 1265 bktr_ptr_t bktr; 1266 1267 unit = UNIT(dev); 1268 1269 if (FUNCTION(dev) > 0) /* only allow mmap on /dev/bktr[n] */ 1270 return(-1); 1271 1272 bktr = bktr_cd.cd_devs[unit]; 1273 1274 if ((vaddr_t)offset < 0) 1275 return(-1); 1276 1277 if ((vaddr_t)offset >= bktr->alloc_pages * PAGE_SIZE) 1278 return(-1); 1279 1280#ifdef __NetBSD__ 1281 return (bus_dmamem_mmap(bktr->dmat, bktr->dm_mem->dm_segs, 1, 1282 (vaddr_t)offset, nprot, BUS_DMA_WAITOK)); 1283#else 1284 return(i386_btop(vtophys(bktr->bigbuf) + offset)); 1285#endif 1286} 1287 1288#endif /* __NetBSD__ || __OpenBSD__ */ 1289