bktr_os.c revision 112569
1/* $FreeBSD: head/sys/dev/bktr/bktr_os.c 112569 2003-03-25 00:07:06Z jake $ */ 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 unsigned int unit; 475 476 struct bktr_softc *bktr = device_get_softc(dev); 477 478 unit = device_get_unit(dev); 479 480 /* Disable the brooktree device */ 481 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED); 482 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED); 483 484#if defined(BKTR_USE_FREEBSD_SMBUS) 485 if (bt848_i2c_detach(dev)) 486 printf("bktr%d: i2c_attach: can't attach\n", unit); 487#endif 488 489 /* Note: We do not free memory for RISC programs, grab buffer, vbi buffers */ 490 /* The memory is retained by the bktr_mem module so we can unload and */ 491 /* then reload the main bktr driver module */ 492 493 /* Unregister the /dev/bktrN, tunerN and vbiN devices, 494 * the aliases for unit 0 are automatically destroyed */ 495 destroy_dev(bktr->vbidev); 496 destroy_dev(bktr->tunerdev); 497 destroy_dev(bktr->bktrdev); 498 499 /* 500 * Deallocate resources. 501 */ 502 bus_teardown_intr(dev, bktr->res_irq, bktr->res_ih); 503 bus_release_resource(dev, SYS_RES_IRQ, bktr->irq_rid, bktr->res_irq); 504 bus_release_resource(dev, SYS_RES_MEMORY, bktr->mem_rid, bktr->res_mem); 505 506 return 0; 507} 508 509/* 510 * the shutdown routine. 511 */ 512static int 513bktr_shutdown( device_t dev ) 514{ 515 struct bktr_softc *bktr = device_get_softc(dev); 516 517 /* Disable the brooktree device */ 518 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED); 519 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED); 520 521 return 0; 522} 523 524 525/* 526 * Special Memory Allocation 527 */ 528vm_offset_t 529get_bktr_mem( int unit, unsigned size ) 530{ 531 vm_offset_t addr = 0; 532 533 addr = vm_page_alloc_contig(size, 0, 0xffffffff, 1<<24); 534 if (addr == 0) 535 addr = vm_page_alloc_contig(size, 0, 0xffffffff, PAGE_SIZE); 536 if (addr == 0) { 537 printf("bktr%d: Unable to allocate %d bytes of memory.\n", 538 unit, size); 539 } 540 541 return( addr ); 542} 543 544 545/*--------------------------------------------------------- 546** 547** BrookTree 848 character device driver routines 548** 549**--------------------------------------------------------- 550*/ 551 552#define VIDEO_DEV 0x00 553#define TUNER_DEV 0x01 554#define VBI_DEV 0x02 555 556#define UNIT(x) ((x) & 0x0f) 557#define FUNCTION(x) (x >> 4) 558 559/* 560 * 561 */ 562static int 563bktr_open( dev_t dev, int flags, int fmt, struct thread *td ) 564{ 565 bktr_ptr_t bktr; 566 int unit; 567 int result; 568 569 unit = UNIT( minor(dev) ); 570 571 /* Get the device data */ 572 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 573 if (bktr == NULL) { 574 /* the device is no longer valid/functioning */ 575 return (ENXIO); 576 } 577 578 if (!(bktr->flags & METEOR_INITALIZED)) /* device not found */ 579 return( ENXIO ); 580 581 /* Record that the device is now busy */ 582 device_busy(devclass_get_device(bktr_devclass, unit)); 583 584 585 if (bt848_card != -1) { 586 if ((bt848_card >> 8 == unit ) && 587 ( (bt848_card & 0xff) < Bt848_MAX_CARD )) { 588 if ( bktr->bt848_card != (bt848_card & 0xff) ) { 589 bktr->bt848_card = (bt848_card & 0xff); 590 probeCard(bktr, FALSE, unit); 591 } 592 } 593 } 594 595 if (bt848_tuner != -1) { 596 if ((bt848_tuner >> 8 == unit ) && 597 ( (bt848_tuner & 0xff) < Bt848_MAX_TUNER )) { 598 if ( bktr->bt848_tuner != (bt848_tuner & 0xff) ) { 599 bktr->bt848_tuner = (bt848_tuner & 0xff); 600 probeCard(bktr, FALSE, unit); 601 } 602 } 603 } 604 605 if (bt848_reverse_mute != -1) { 606 if ((bt848_reverse_mute >> 8) == unit ) { 607 bktr->reverse_mute = bt848_reverse_mute & 0xff; 608 } 609 } 610 611 if (bt848_slow_msp_audio != -1) { 612 if ((bt848_slow_msp_audio >> 8) == unit ) { 613 bktr->slow_msp_audio = (bt848_slow_msp_audio & 0xff); 614 } 615 } 616 617 switch ( FUNCTION( minor(dev) ) ) { 618 case VIDEO_DEV: 619 result = video_open( bktr ); 620 break; 621 case TUNER_DEV: 622 result = tuner_open( bktr ); 623 break; 624 case VBI_DEV: 625 result = vbi_open( bktr ); 626 break; 627 default: 628 result = ENXIO; 629 break; 630 } 631 632 /* If there was an error opening the device, undo the busy status */ 633 if (result != 0) 634 device_unbusy(devclass_get_device(bktr_devclass, unit)); 635 return( result ); 636} 637 638 639/* 640 * 641 */ 642static int 643bktr_close( dev_t dev, int flags, int fmt, struct thread *td ) 644{ 645 bktr_ptr_t bktr; 646 int unit; 647 int result; 648 649 unit = UNIT( minor(dev) ); 650 651 /* Get the device data */ 652 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 653 if (bktr == NULL) { 654 /* the device is no longer valid/functioning */ 655 return (ENXIO); 656 } 657 658 switch ( FUNCTION( minor(dev) ) ) { 659 case VIDEO_DEV: 660 result = video_close( bktr ); 661 break; 662 case TUNER_DEV: 663 result = tuner_close( bktr ); 664 break; 665 case VBI_DEV: 666 result = vbi_close( bktr ); 667 break; 668 default: 669 return (ENXIO); 670 break; 671 } 672 673 device_unbusy(devclass_get_device(bktr_devclass, unit)); 674 return( result ); 675} 676 677 678/* 679 * 680 */ 681static int 682bktr_read( dev_t dev, struct uio *uio, int ioflag ) 683{ 684 bktr_ptr_t bktr; 685 int unit; 686 687 unit = UNIT(minor(dev)); 688 689 /* Get the device data */ 690 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 691 if (bktr == NULL) { 692 /* the device is no longer valid/functioning */ 693 return (ENXIO); 694 } 695 696 switch ( FUNCTION( minor(dev) ) ) { 697 case VIDEO_DEV: 698 return( video_read( bktr, unit, dev, uio ) ); 699 case VBI_DEV: 700 return( vbi_read( bktr, uio, ioflag ) ); 701 } 702 return( ENXIO ); 703} 704 705 706/* 707 * 708 */ 709static int 710bktr_write( dev_t dev, struct uio *uio, int ioflag ) 711{ 712 return( EINVAL ); /* XXX or ENXIO ? */ 713} 714 715 716/* 717 * 718 */ 719static int 720bktr_ioctl( dev_t dev, ioctl_cmd_t cmd, caddr_t arg, int flag, struct thread *td ) 721{ 722 bktr_ptr_t bktr; 723 int unit; 724 725 unit = UNIT(minor(dev)); 726 727 /* Get the device data */ 728 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 729 if (bktr == NULL) { 730 /* the device is no longer valid/functioning */ 731 return (ENXIO); 732 } 733 734 if (bktr->bigbuf == 0) /* no frame buffer allocated (ioctl failed) */ 735 return( ENOMEM ); 736 737 switch ( FUNCTION( minor(dev) ) ) { 738 case VIDEO_DEV: 739 return( video_ioctl( bktr, unit, cmd, arg, td ) ); 740 case TUNER_DEV: 741 return( tuner_ioctl( bktr, unit, cmd, arg, td ) ); 742 } 743 744 return( ENXIO ); 745} 746 747 748/* 749 * 750 */ 751static int 752bktr_mmap( dev_t dev, vm_offset_t offset, vm_paddr_t *paddr, int nprot ) 753{ 754 int unit; 755 bktr_ptr_t bktr; 756 757 unit = UNIT(minor(dev)); 758 759 if (FUNCTION(minor(dev)) > 0) /* only allow mmap on /dev/bktr[n] */ 760 return( -1 ); 761 762 /* Get the device data */ 763 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 764 if (bktr == NULL) { 765 /* the device is no longer valid/functioning */ 766 return (ENXIO); 767 } 768 769 if (nprot & PROT_EXEC) 770 return( -1 ); 771 772 if (offset < 0) 773 return( -1 ); 774 775 if (offset >= bktr->alloc_pages * PAGE_SIZE) 776 return( -1 ); 777 778 *paddr = vtophys(bktr->bigbuf) + offset; 779 return( 0 ); 780} 781 782static int 783bktr_poll( dev_t dev, int events, struct thread *td) 784{ 785 int unit; 786 bktr_ptr_t bktr; 787 int revents = 0; 788 DECLARE_INTR_MASK(s); 789 790 unit = UNIT(minor(dev)); 791 792 /* Get the device data */ 793 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 794 if (bktr == NULL) { 795 /* the device is no longer valid/functioning */ 796 return (ENXIO); 797 } 798 799 DISABLE_INTR(s); 800 801 if (events & (POLLIN | POLLRDNORM)) { 802 803 switch ( FUNCTION( minor(dev) ) ) { 804 case VBI_DEV: 805 if(bktr->vbisize == 0) 806 selrecord(td, &bktr->vbi_select); 807 else 808 revents |= events & (POLLIN | POLLRDNORM); 809 break; 810 } 811 } 812 813 ENABLE_INTR(s); 814 815 return (revents); 816} 817 818#endif /* FreeBSD 4.x specific kernel interface routines */ 819 820/*****************/ 821/* *** BSDI *** */ 822/*****************/ 823 824#if defined(__bsdi__) 825#endif /* __bsdi__ BSDI specific kernel interface routines */ 826 827 828/*****************************/ 829/* *** OpenBSD / NetBSD *** */ 830/*****************************/ 831#if defined(__NetBSD__) || defined(__OpenBSD__) 832 833#define IPL_VIDEO IPL_BIO /* XXX */ 834 835static int bktr_intr(void *arg) { return common_bktr_intr(arg); } 836 837#define bktr_open bktropen 838#define bktr_close bktrclose 839#define bktr_read bktrread 840#define bktr_write bktrwrite 841#define bktr_ioctl bktrioctl 842#define bktr_mmap bktrmmap 843 844vm_offset_t vm_page_alloc_contig(vm_offset_t, vm_offset_t, 845 vm_offset_t, vm_offset_t); 846 847#if defined(__OpenBSD__) 848static int bktr_probe(struct device *, void *, void *); 849#else 850static int bktr_probe(struct device *, struct cfdata *, void *); 851#endif 852static void bktr_attach(struct device *, struct device *, void *); 853 854struct cfattach bktr_ca = { 855 sizeof(struct bktr_softc), bktr_probe, bktr_attach 856}; 857 858#if defined(__NetBSD__) 859extern struct cfdriver bktr_cd; 860#else 861struct cfdriver bktr_cd = { 862 NULL, "bktr", DV_DULL 863}; 864#endif 865 866int 867bktr_probe(parent, match, aux) 868 struct device *parent; 869#if defined(__OpenBSD__) 870 void *match; 871#else 872 struct cfdata *match; 873#endif 874 void *aux; 875{ 876 struct pci_attach_args *pa = aux; 877 878 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_BROOKTREE && 879 (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT848 || 880 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT849 || 881 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT878 || 882 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT879)) 883 return 1; 884 885 return 0; 886} 887 888 889/* 890 * the attach routine. 891 */ 892static void 893bktr_attach(struct device *parent, struct device *self, void *aux) 894{ 895 bktr_ptr_t bktr; 896 u_long latency; 897 u_long fun; 898 unsigned int rev; 899 900#if defined(__OpenBSD__) 901 struct pci_attach_args *pa = aux; 902 pci_chipset_tag_t pc = pa->pa_pc; 903 904 pci_intr_handle_t ih; 905 const char *intrstr; 906 int retval; 907 int unit; 908 909 bktr = (bktr_ptr_t)self; 910 unit = bktr->bktr_dev.dv_unit; 911 912 bktr->pc = pa->pa_pc; 913 bktr->tag = pa->pa_tag; 914 bktr->dmat = pa->pa_dmat; 915 916 /* 917 * map memory 918 */ 919 bktr->memt = pa->pa_memt; 920 retval = pci_mem_find(pc, pa->pa_tag, PCI_MAPREG_START, 921 &bktr->phys_base, &bktr->obmemsz, NULL); 922 if (!retval) 923 retval = bus_space_map(pa->pa_memt, bktr->phys_base, 924 bktr->obmemsz, 0, &bktr->memh); 925 if (retval) { 926 printf(": couldn't map memory\n"); 927 return; 928 } 929 930 931 /* 932 * map interrupt 933 */ 934 if (pci_intr_map(pa->pa_pc, pa->pa_intrtag, pa->pa_intrpin, 935 pa->pa_intrline, &ih)) { 936 printf(": couldn't map interrupt\n"); 937 return; 938 } 939 intrstr = pci_intr_string(pa->pa_pc, ih); 940 941 bktr->ih = pci_intr_establish(pa->pa_pc, ih, IPL_VIDEO, 942 bktr_intr, bktr, bktr->bktr_dev.dv_xname); 943 if (bktr->ih == NULL) { 944 printf(": couldn't establish interrupt"); 945 if (intrstr != NULL) 946 printf(" at %s", intrstr); 947 printf("\n"); 948 return; 949 } 950 951 if (intrstr != NULL) 952 printf(": %s\n", intrstr); 953#endif /* __OpenBSD__ */ 954 955#if defined(__NetBSD__) 956 struct pci_attach_args *pa = aux; 957 pci_intr_handle_t ih; 958 const char *intrstr; 959 int retval; 960 int unit; 961 962 bktr = (bktr_ptr_t)self; 963 unit = bktr->bktr_dev.dv_unit; 964 bktr->dmat = pa->pa_dmat; 965 966 printf("\n"); 967 968 /* 969 * map memory 970 */ 971 retval = pci_mapreg_map(pa, PCI_MAPREG_START, 972 PCI_MAPREG_TYPE_MEM 973 | PCI_MAPREG_MEM_TYPE_32BIT, 0, 974 &bktr->memt, &bktr->memh, NULL, 975 &bktr->obmemsz); 976 DPR(("pci_mapreg_map: memt %x, memh %x, size %x\n", 977 bktr->memt, (u_int)bktr->memh, (u_int)bktr->obmemsz)); 978 if (retval) { 979 printf("%s: couldn't map memory\n", bktr_name(bktr)); 980 return; 981 } 982 983 /* 984 * Disable the brooktree device 985 */ 986 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED); 987 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED); 988 989 /* 990 * map interrupt 991 */ 992 if (pci_intr_map(pa->pa_pc, pa->pa_intrtag, pa->pa_intrpin, 993 pa->pa_intrline, &ih)) { 994 printf("%s: couldn't map interrupt\n", 995 bktr_name(bktr)); 996 return; 997 } 998 intrstr = pci_intr_string(pa->pa_pc, ih); 999 bktr->ih = pci_intr_establish(pa->pa_pc, ih, IPL_VIDEO, 1000 bktr_intr, bktr); 1001 if (bktr->ih == NULL) { 1002 printf("%s: couldn't establish interrupt", 1003 bktr_name(bktr)); 1004 if (intrstr != NULL) 1005 printf(" at %s", intrstr); 1006 printf("\n"); 1007 return; 1008 } 1009 if (intrstr != NULL) 1010 printf("%s: interrupting at %s\n", bktr_name(bktr), 1011 intrstr); 1012#endif /* __NetBSD__ */ 1013 1014/* 1015 * PCI latency timer. 32 is a good value for 4 bus mastering slots, if 1016 * you have more than four, then 16 would probably be a better value. 1017 */ 1018#ifndef BROOKTREE_DEF_LATENCY_VALUE 1019#define BROOKTREE_DEF_LATENCY_VALUE 10 1020#endif 1021 latency = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_LATENCY_TIMER); 1022 latency = (latency >> 8) & 0xff; 1023 1024 if (!latency) { 1025 if (bootverbose) { 1026 printf("%s: PCI bus latency was 0 changing to %d", 1027 bktr_name(bktr), BROOKTREE_DEF_LATENCY_VALUE); 1028 } 1029 latency = BROOKTREE_DEF_LATENCY_VALUE; 1030 pci_conf_write(pa->pa_pc, pa->pa_tag, 1031 PCI_LATENCY_TIMER, latency<<8); 1032 } 1033 1034 1035 /* Enabled Bus Master 1036 XXX: check if all old DMA is stopped first (e.g. after warm 1037 boot) */ 1038 fun = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); 1039 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, 1040 fun | PCI_COMMAND_MASTER_ENABLE); 1041 1042 /* read the pci id and determine the card type */ 1043 fun = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_ID_REG); 1044 rev = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_CLASS_REG) & 0x000000ff; 1045 1046 common_bktr_attach(bktr, unit, fun, rev); 1047} 1048 1049 1050/* 1051 * Special Memory Allocation 1052 */ 1053vm_offset_t 1054get_bktr_mem(bktr, dmapp, size) 1055 bktr_ptr_t bktr; 1056 bus_dmamap_t *dmapp; 1057 unsigned int size; 1058{ 1059 bus_dma_tag_t dmat = bktr->dmat; 1060 bus_dma_segment_t seg; 1061 bus_size_t align; 1062 int rseg; 1063 caddr_t kva; 1064 1065 /* 1066 * Allocate a DMA area 1067 */ 1068 align = 1 << 24; 1069 if (bus_dmamem_alloc(dmat, size, align, 0, &seg, 1, 1070 &rseg, BUS_DMA_NOWAIT)) { 1071 align = PAGE_SIZE; 1072 if (bus_dmamem_alloc(dmat, size, align, 0, &seg, 1, 1073 &rseg, BUS_DMA_NOWAIT)) { 1074 printf("%s: Unable to dmamem_alloc of %d bytes\n", 1075 bktr_name(bktr), size); 1076 return 0; 1077 } 1078 } 1079 if (bus_dmamem_map(dmat, &seg, rseg, size, 1080 &kva, BUS_DMA_NOWAIT|BUS_DMA_COHERENT)) { 1081 printf("%s: Unable to dmamem_map of %d bytes\n", 1082 bktr_name(bktr), size); 1083 bus_dmamem_free(dmat, &seg, rseg); 1084 return 0; 1085 } 1086#ifdef __OpenBSD__ 1087 bktr->dm_mapsize = size; 1088#endif 1089 /* 1090 * Create and locd the DMA map for the DMA area 1091 */ 1092 if (bus_dmamap_create(dmat, size, 1, size, 0, BUS_DMA_NOWAIT, dmapp)) { 1093 printf("%s: Unable to dmamap_create of %d bytes\n", 1094 bktr_name(bktr), size); 1095 bus_dmamem_unmap(dmat, kva, size); 1096 bus_dmamem_free(dmat, &seg, rseg); 1097 return 0; 1098 } 1099 if (bus_dmamap_load(dmat, *dmapp, kva, size, NULL, BUS_DMA_NOWAIT)) { 1100 printf("%s: Unable to dmamap_load of %d bytes\n", 1101 bktr_name(bktr), size); 1102 bus_dmamem_unmap(dmat, kva, size); 1103 bus_dmamem_free(dmat, &seg, rseg); 1104 bus_dmamap_destroy(dmat, *dmapp); 1105 return 0; 1106 } 1107 return (vm_offset_t)kva; 1108} 1109 1110void 1111free_bktr_mem(bktr, dmap, kva) 1112 bktr_ptr_t bktr; 1113 bus_dmamap_t dmap; 1114 vm_offset_t kva; 1115{ 1116 bus_dma_tag_t dmat = bktr->dmat; 1117 1118#ifdef __NetBSD__ 1119 bus_dmamem_unmap(dmat, (caddr_t)kva, dmap->dm_mapsize); 1120#else 1121 bus_dmamem_unmap(dmat, (caddr_t)kva, bktr->dm_mapsize); 1122#endif 1123 bus_dmamem_free(dmat, dmap->dm_segs, 1); 1124 bus_dmamap_destroy(dmat, dmap); 1125} 1126 1127 1128/*--------------------------------------------------------- 1129** 1130** BrookTree 848 character device driver routines 1131** 1132**--------------------------------------------------------- 1133*/ 1134 1135 1136#define VIDEO_DEV 0x00 1137#define TUNER_DEV 0x01 1138#define VBI_DEV 0x02 1139 1140#define UNIT(x) (minor((x) & 0x0f)) 1141#define FUNCTION(x) (minor((x >> 4) & 0x0f)) 1142 1143/* 1144 * 1145 */ 1146int 1147bktr_open(dev_t dev, int flags, int fmt, struct thread *td) 1148{ 1149 bktr_ptr_t bktr; 1150 int unit; 1151 1152 unit = UNIT(dev); 1153 1154 /* unit out of range */ 1155 if ((unit > bktr_cd.cd_ndevs) || (bktr_cd.cd_devs[unit] == NULL)) 1156 return(ENXIO); 1157 1158 bktr = bktr_cd.cd_devs[unit]; 1159 1160 if (!(bktr->flags & METEOR_INITALIZED)) /* device not found */ 1161 return(ENXIO); 1162 1163 switch (FUNCTION(dev)) { 1164 case VIDEO_DEV: 1165 return(video_open(bktr)); 1166 case TUNER_DEV: 1167 return(tuner_open(bktr)); 1168 case VBI_DEV: 1169 return(vbi_open(bktr)); 1170 } 1171 1172 return(ENXIO); 1173} 1174 1175 1176/* 1177 * 1178 */ 1179int 1180bktr_close(dev_t dev, int flags, int fmt, struct thread *td) 1181{ 1182 bktr_ptr_t bktr; 1183 int unit; 1184 1185 unit = UNIT(dev); 1186 1187 bktr = bktr_cd.cd_devs[unit]; 1188 1189 switch (FUNCTION(dev)) { 1190 case VIDEO_DEV: 1191 return(video_close(bktr)); 1192 case TUNER_DEV: 1193 return(tuner_close(bktr)); 1194 case VBI_DEV: 1195 return(vbi_close(bktr)); 1196 } 1197 1198 return(ENXIO); 1199} 1200 1201/* 1202 * 1203 */ 1204int 1205bktr_read(dev_t dev, struct uio *uio, int ioflag) 1206{ 1207 bktr_ptr_t bktr; 1208 int unit; 1209 1210 unit = UNIT(dev); 1211 1212 bktr = bktr_cd.cd_devs[unit]; 1213 1214 switch (FUNCTION(dev)) { 1215 case VIDEO_DEV: 1216 return(video_read(bktr, unit, dev, uio)); 1217 case VBI_DEV: 1218 return(vbi_read(bktr, uio, ioflag)); 1219 } 1220 1221 return(ENXIO); 1222} 1223 1224 1225/* 1226 * 1227 */ 1228int 1229bktr_write(dev_t dev, struct uio *uio, int ioflag) 1230{ 1231 /* operation not supported */ 1232 return(EOPNOTSUPP); 1233} 1234 1235/* 1236 * 1237 */ 1238int 1239bktr_ioctl(dev_t dev, ioctl_cmd_t cmd, caddr_t arg, int flag, struct thread *td) 1240{ 1241 bktr_ptr_t bktr; 1242 int unit; 1243 1244 unit = UNIT(dev); 1245 1246 bktr = bktr_cd.cd_devs[unit]; 1247 1248 if (bktr->bigbuf == 0) /* no frame buffer allocated (ioctl failed) */ 1249 return(ENOMEM); 1250 1251 switch (FUNCTION(dev)) { 1252 case VIDEO_DEV: 1253 return(video_ioctl(bktr, unit, cmd, arg, pr)); 1254 case TUNER_DEV: 1255 return(tuner_ioctl(bktr, unit, cmd, arg, pr)); 1256 } 1257 1258 return(ENXIO); 1259} 1260 1261/* 1262 * 1263 */ 1264paddr_t 1265bktr_mmap(dev_t dev, off_t offset, int nprot) 1266{ 1267 int unit; 1268 bktr_ptr_t bktr; 1269 1270 unit = UNIT(dev); 1271 1272 if (FUNCTION(dev) > 0) /* only allow mmap on /dev/bktr[n] */ 1273 return(-1); 1274 1275 bktr = bktr_cd.cd_devs[unit]; 1276 1277 if ((vaddr_t)offset < 0) 1278 return(-1); 1279 1280 if ((vaddr_t)offset >= bktr->alloc_pages * PAGE_SIZE) 1281 return(-1); 1282 1283#ifdef __NetBSD__ 1284 return (bus_dmamem_mmap(bktr->dmat, bktr->dm_mem->dm_segs, 1, 1285 (vaddr_t)offset, nprot, BUS_DMA_WAITOK)); 1286#else 1287 return(i386_btop(vtophys(bktr->bigbuf) + offset)); 1288#endif 1289} 1290 1291#endif /* __NetBSD__ || __OpenBSD__ */ 1292