1 /* $OpenBSD: bktr_os.c,v 1.7 2001/11/06 19:53:19 miod Exp $ */ 2 /* $FreeBSD: src/sys/dev/bktr/bktr_os.c,v 1.20 2000/10/20 08:16:53 roger Exp $ */ 3 4 /* 5 * This is part of the Driver for Video Capture Cards (Frame grabbers) 6 * and TV Tuner cards using the Brooktree Bt848, Bt848A, Bt849A, Bt878, Bt879 7 * chipset. 8 * Copyright Roger Hardiman and Amancio Hasty. 9 * 10 * bktr_os : This has all the Operating System dependant code, 11 * probe/attach and open/close/ioctl/read/mmap 12 * memory allocation 13 * PCI bus interfacing 14 * 15 * 16 */ 17 18 /* 19 * 1. Redistributions of source code must retain the 20 * Copyright (c) 1997 Amancio Hasty, 1999 Roger Hardiman 21 * All rights reserved. 22 * 23 * Redistribution and use in source and binary forms, with or without 24 * modification, are permitted provided that the following conditions 25 * are met: 26 * 1. Redistributions of source code must retain the above copyright 27 * notice, this list of conditions and the following disclaimer. 28 * 2. Redistributions in binary form must reproduce the above copyright 29 * notice, this list of conditions and the following disclaimer in the 30 * documentation and/or other materials provided with the distribution. 31 * 3. All advertising materials mentioning features or use of this software 32 * must display the following acknowledgement: 33 * This product includes software developed by Amancio Hasty and 34 * Roger Hardiman 35 * 4. The name of the author may not be used to endorse or promote products 36 * derived from this software without specific prior written permission. 37 * 38 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 39 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 40 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 41 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 42 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 43 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 44 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 45 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 46 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 47 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 48 * POSSIBILITY OF SUCH DAMAGE. 49 */ 50 51 52 #ifdef __FreeBSD__ 53 #include "bktr.h" 54 #endif /* __FreeBSD__ */ 55 56 #ifndef __OpenBSD__ 57 #include "opt_bktr.h" /* include any kernel config options */ 58 #endif 59 60 #define FIFO_RISC_DISABLED 0 61 #define ALL_INTS_DISABLED 0 62 63 64 /*******************/ 65 /* *** FreeBSD *** */ 66 /*******************/ 67 #ifdef __FreeBSD__ 68 69 #include <sys/param.h> 70 #include <sys/systm.h> 71 #include <sys/conf.h> 72 #include <sys/uio.h> 73 #include <sys/kernel.h> 74 #include <sys/signalvar.h> 75 #include <sys/mman.h> 76 #include <sys/poll.h> 77 #include <sys/select.h> 78 #include <sys/vnode.h> 79 80 #include <vm/vm.h> 81 #include <vm/pmap.h> 82 #include <vm/vm_extern.h> 83 84 #if (__FreeBSD_version >=400000) || (NSMBUS > 0) 85 #include <sys/bus.h> /* used by smbus and newbus */ 86 #endif 87 88 #if (__FreeBSD_version >=300000) 89 #include <machine/bus_memio.h> /* used by bus space */ 90 #include <machine/bus.h> /* used by bus space and newbus */ 91 #include <sys/bus.h> 92 #endif 93 94 #if (__FreeBSD_version >=400000) 95 #include <sys/rman.h> /* used by newbus */ 96 #include <machine/resource.h> /* used by newbus */ 97 #endif 98 99 #if (__FreeBSD_version < 500000) 100 #include <machine/clock.h> /* for DELAY */ 101 #endif 102 103 #include <pci/pcivar.h> 104 #include <pci/pcireg.h> 105 106 #include <sys/sysctl.h> 107 int bt848_card = -1; 108 int bt848_tuner = -1; 109 int bt848_reverse_mute = -1; 110 int bt848_format = -1; 111 int bt848_slow_msp_audio = -1; 112 113 SYSCTL_NODE(_hw, OID_AUTO, bt848, CTLFLAG_RW, 0, "Bt848 Driver mgmt"); 114 SYSCTL_INT(_hw_bt848, OID_AUTO, card, CTLFLAG_RW, &bt848_card, -1, ""); 115 SYSCTL_INT(_hw_bt848, OID_AUTO, tuner, CTLFLAG_RW, &bt848_tuner, -1, ""); 116 SYSCTL_INT(_hw_bt848, OID_AUTO, reverse_mute, CTLFLAG_RW, &bt848_reverse_mute, -1, ""); 117 SYSCTL_INT(_hw_bt848, OID_AUTO, format, CTLFLAG_RW, &bt848_format, -1, ""); 118 SYSCTL_INT(_hw_bt848, OID_AUTO, slow_msp_audio, CTLFLAG_RW, &bt848_slow_msp_audio, -1, ""); 119 120 #if (__FreeBSD__ == 2) 121 #define PCIR_REVID PCI_CLASS_REG 122 #endif 123 124 #endif /* end freebsd section */ 125 126 127 128 /****************/ 129 /* *** BSDI *** */ 130 /****************/ 131 #ifdef __bsdi__ 132 #endif /* __bsdi__ */ 133 134 135 /**************************/ 136 /* *** OpenBSD/NetBSD *** */ 137 /**************************/ 138 #if defined(__NetBSD__) || defined(__OpenBSD__) 139 140 #include <sys/param.h> 141 #include <sys/systm.h> 142 #include <sys/conf.h> 143 #include <sys/uio.h> 144 #include <sys/kernel.h> 145 #include <sys/signalvar.h> 146 #include <sys/mman.h> 147 #include <sys/poll.h> 148 #include <sys/select.h> 149 #include <sys/vnode.h> 150 151 #include <uvm/uvm_extern.h> 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 160 int 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 #if defined(__NetBSD__) || defined(__OpenBSD__) 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 #if defined(BKTR_USE_FREEBSD_SMBUS) 186 #include <dev/bktr/bktr_i2c.h> 187 #endif 188 #endif 189 190 191 192 /****************************/ 193 /* *** FreeBSD 4.x code *** */ 194 /****************************/ 195 #if (__FreeBSD_version >= 400000) 196 197 static int bktr_probe( device_t dev ); 198 static int bktr_attach( device_t dev ); 199 static int bktr_detach( device_t dev ); 200 static int bktr_shutdown( device_t dev ); 201 static void bktr_intr(void *arg) { common_bktr_intr(arg); } 202 203 static device_method_t bktr_methods[] = { 204 /* Device interface */ 205 DEVMETHOD(device_probe, bktr_probe), 206 DEVMETHOD(device_attach, bktr_attach), 207 DEVMETHOD(device_detach, bktr_detach), 208 DEVMETHOD(device_shutdown, bktr_shutdown), 209 210 { 0, 0 } 211 }; 212 213 static driver_t bktr_driver = { 214 "bktr", 215 bktr_methods, 216 sizeof(struct bktr_softc), 217 }; 218 219 static devclass_t bktr_devclass; 220 221 static d_open_t bktr_open; 222 static d_close_t bktr_close; 223 static d_read_t bktr_read; 224 static d_write_t bktr_write; 225 static d_ioctl_t bktr_ioctl; 226 static d_mmap_t bktr_mmap; 227 static d_poll_t bktr_poll; 228 229 #define CDEV_MAJOR 92 230 static struct cdevsw bktr_cdevsw = { 231 /* open */ bktr_open, 232 /* close */ bktr_close, 233 /* read */ bktr_read, 234 /* write */ bktr_write, 235 /* ioctl */ bktr_ioctl, 236 /* poll */ bktr_poll, 237 /* mmap */ bktr_mmap, 238 /* strategy */ nostrategy, 239 /* name */ "bktr", 240 /* maj */ CDEV_MAJOR, 241 /* dump */ nodump, 242 /* psize */ nopsize, 243 /* flags */ 0, 244 /* bmaj */ -1 245 }; 246 247 DRIVER_MODULE(bktr, pci, bktr_driver, bktr_devclass, 0, 0); 248 #if (__FreeBSD_version > 410000) 249 MODULE_DEPEND(bktr, bktr_mem, 1,1,1); 250 MODULE_VERSION(bktr, 1); 251 #endif 252 253 254 /* 255 * the boot time probe routine. 256 */ 257 static int 258 bktr_probe( device_t dev ) 259 { 260 unsigned int type = pci_get_devid(dev); 261 unsigned int rev = pci_get_revid(dev); 262 263 if (PCI_VENDOR(type) == PCI_VENDOR_BROOKTREE) 264 { 265 switch (PCI_PRODUCT(type)) { 266 case PCI_PRODUCT_BROOKTREE_BT848: 267 if (rev == 0x12) 268 device_set_desc(dev, "BrookTree 848A"); 269 else 270 device_set_desc(dev, "BrookTree 848"); 271 return 0; 272 case PCI_PRODUCT_BROOKTREE_BT849: 273 device_set_desc(dev, "BrookTree 849A"); 274 return 0; 275 case PCI_PRODUCT_BROOKTREE_BT878: 276 device_set_desc(dev, "BrookTree 878"); 277 return 0; 278 case PCI_PRODUCT_BROOKTREE_BT879: 279 device_set_desc(dev, "BrookTree 879"); 280 return 0; 281 } 282 }; 283 284 return ENXIO; 285 } 286 287 288 /* 289 * the attach routine. 290 */ 291 static int 292 bktr_attach( device_t dev ) 293 { 294 u_long latency; 295 u_long fun; 296 u_long val; 297 unsigned int rev; 298 unsigned int unit; 299 int error = 0; 300 #ifdef BROOKTREE_IRQ 301 u_long old_irq, new_irq; 302 #endif 303 304 struct bktr_softc *bktr = device_get_softc(dev); 305 306 unit = device_get_unit(dev); 307 308 /* build the device name for bktr_name() */ 309 snprintf(bktr->bktr_xname, sizeof(bktr->bktr_xname), "bktr%d",unit); 310 311 /* 312 * Enable bus mastering and Memory Mapped device 313 */ 314 val = pci_read_config(dev, PCIR_COMMAND, 4); 315 val |= (PCIM_CMD_MEMEN|PCIM_CMD_BUSMASTEREN); 316 pci_write_config(dev, PCIR_COMMAND, val, 4); 317 318 /* 319 * Map control/status registers. 320 */ 321 bktr->mem_rid = PCIR_MAPS; 322 bktr->res_mem = bus_alloc_resource(dev, SYS_RES_MEMORY, &bktr->mem_rid, 323 0, ~0, 1, RF_ACTIVE); 324 325 326 if (!bktr->res_mem) { 327 device_printf(dev, "could not map memory\n"); 328 error = ENXIO; 329 goto fail; 330 } 331 bktr->memt = rman_get_bustag(bktr->res_mem); 332 bktr->memh = rman_get_bushandle(bktr->res_mem); 333 334 335 /* 336 * Disable the brooktree device 337 */ 338 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED); 339 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED); 340 341 342 #ifdef BROOKTREE_IRQ /* from the configuration file */ 343 old_irq = pci_conf_read(tag, PCI_INTERRUPT_REG); 344 pci_conf_write(tag, PCI_INTERRUPT_REG, BROOKTREE_IRQ); 345 new_irq = pci_conf_read(tag, PCI_INTERRUPT_REG); 346 printf("bktr%d: attach: irq changed from %d to %d\n", 347 unit, (old_irq & 0xff), (new_irq & 0xff)); 348 #endif 349 350 /* 351 * Allocate our interrupt. 352 */ 353 bktr->irq_rid = 0; 354 bktr->res_irq = bus_alloc_resource(dev, SYS_RES_IRQ, &bktr->irq_rid, 355 0, ~0, 1, RF_SHAREABLE | RF_ACTIVE); 356 if (bktr->res_irq == NULL) { 357 device_printf(dev, "could not map interrupt\n"); 358 error = ENXIO; 359 goto fail; 360 } 361 362 error = bus_setup_intr(dev, bktr->res_irq, INTR_TYPE_TTY, 363 bktr_intr, bktr, &bktr->res_ih); 364 if (error) { 365 device_printf(dev, "could not setup irq\n"); 366 goto fail; 367 368 } 369 370 371 /* Update the Device Control Register */ 372 /* on Bt878 and Bt879 cards */ 373 fun = pci_read_config( dev, 0x40, 2); 374 fun = fun | 1; /* Enable writes to the sub-system vendor ID */ 375 376 #if defined( BKTR_430_FX_MODE ) 377 if (bootverbose) printf("Using 430 FX chipset compatibilty mode\n"); 378 fun = fun | 2; /* Enable Intel 430 FX compatibility mode */ 379 #endif 380 381 #if defined( BKTR_SIS_VIA_MODE ) 382 if (bootverbose) printf("Using SiS/VIA chipset compatibilty mode\n"); 383 fun = fun | 4; /* Enable SiS/VIA compatibility mode (usefull for 384 OPTi chipset motherboards too */ 385 #endif 386 pci_write_config(dev, 0x40, fun, 2); 387 388 389 /* XXX call bt848_i2c dependent attach() routine */ 390 #if defined(BKTR_USE_FREEBSD_SMBUS) 391 if (bt848_i2c_attach(unit, bktr, &bktr->i2c_sc)) 392 printf("bktr%d: i2c_attach: can't attach\n", unit); 393 #endif 394 395 396 /* 397 * PCI latency timer. 32 is a good value for 4 bus mastering slots, if 398 * you have more than four, then 16 would probably be a better value. 399 */ 400 #ifndef BROOKTREE_DEF_LATENCY_VALUE 401 #define BROOKTREE_DEF_LATENCY_VALUE 10 402 #endif 403 latency = pci_read_config(dev, PCI_LATENCY_TIMER, 4); 404 latency = (latency >> 8) & 0xff; 405 if ( bootverbose ) { 406 if (latency) 407 printf("brooktree%d: PCI bus latency is", unit); 408 else 409 printf("brooktree%d: PCI bus latency was 0 changing to", 410 unit); 411 } 412 if ( !latency ) { 413 latency = BROOKTREE_DEF_LATENCY_VALUE; 414 pci_write_config(dev, PCI_LATENCY_TIMER, latency<<8, 4); 415 } 416 if ( bootverbose ) { 417 printf(" %d.\n", (int) latency); 418 } 419 420 /* read the pci device id and revision id */ 421 fun = pci_get_devid(dev); 422 rev = pci_get_revid(dev); 423 424 /* call the common attach code */ 425 common_bktr_attach( bktr, unit, fun, rev ); 426 427 /* make the device entries */ 428 bktr->bktrdev = make_dev(&bktr_cdevsw, unit, 429 0, 0, 0444, "bktr%d", unit); 430 bktr->tunerdev= make_dev(&bktr_cdevsw, unit+16, 431 0, 0, 0444, "tuner%d", unit); 432 bktr->vbidev = make_dev(&bktr_cdevsw, unit+32, 433 0, 0, 0444, "vbi%d" , unit); 434 435 436 /* if this is unit 0 (/dev/bktr0, /dev/tuner0, /dev/vbi0) then make */ 437 /* alias entries to /dev/bktr /dev/tuner and /dev/vbi */ 438 #if (__FreeBSD_version >=500000) 439 if (unit == 0) { 440 bktr->bktrdev_alias = make_dev_alias(bktr->bktrdev, "bktr"); 441 bktr->tunerdev_alias= make_dev_alias(bktr->tunerdev, "tuner"); 442 bktr->vbidev_alias = make_dev_alias(bktr->vbidev, "vbi"); 443 } 444 #endif 445 446 return 0; 447 448 fail: 449 if (bktr->res_irq) 450 bus_release_resource(dev, SYS_RES_IRQ, bktr->irq_rid, bktr->res_irq); 451 if (bktr->res_mem) 452 bus_release_resource(dev, SYS_RES_IRQ, bktr->mem_rid, bktr->res_mem); 453 return error; 454 455 } 456 457 /* 458 * the detach routine. 459 */ 460 static int 461 bktr_detach( device_t dev ) 462 { 463 unsigned int unit; 464 465 struct bktr_softc *bktr = device_get_softc(dev); 466 467 unit = device_get_unit(dev); 468 469 /* Disable the brooktree device */ 470 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED); 471 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED); 472 473 /* Note: We do not free memory for RISC programs, grab buffer, vbi buffers */ 474 /* The memory is retained by the bktr_mem module so we can unload and */ 475 /* then reload the main bktr driver module */ 476 477 /* Unregister the /dev/bktrN, tunerN and vbiN devices */ 478 destroy_dev(bktr->vbidev); 479 destroy_dev(bktr->tunerdev); 480 destroy_dev(bktr->bktrdev); 481 482 /* If this is unit 0, then destroy the alias entries too */ 483 #if (__FreeBSD_version >=500000) 484 if (unit == 0) { 485 destroy_dev(bktr->vbidev_alias); 486 destroy_dev(bktr->tunerdev_alias); 487 destroy_dev(bktr->bktrdev_alias); 488 } 489 #endif 490 491 /* 492 * Deallocate resources. 493 */ 494 bus_teardown_intr(dev, bktr->res_irq, bktr->res_ih); 495 bus_release_resource(dev, SYS_RES_IRQ, bktr->irq_rid, bktr->res_irq); 496 bus_release_resource(dev, SYS_RES_MEMORY, bktr->mem_rid, bktr->res_mem); 497 498 return 0; 499 } 500 501 /* 502 * the shutdown routine. 503 */ 504 static int 505 bktr_shutdown( device_t dev ) 506 { 507 struct bktr_softc *bktr = device_get_softc(dev); 508 509 /* Disable the brooktree device */ 510 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED); 511 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED); 512 513 return 0; 514 } 515 516 517 /* 518 * Special Memory Allocation 519 */ 520 vm_offset_t 521 get_bktr_mem( int unit, unsigned size ) 522 { 523 vm_offset_t addr = 0; 524 525 addr = vm_page_alloc_contig(size, 0, 0xffffffff, 1<<24); 526 if (addr == 0) 527 addr = vm_page_alloc_contig(size, 0, 0xffffffff, PAGE_SIZE); 528 if (addr == 0) { 529 printf("bktr%d: Unable to allocate %d bytes of memory.\n", 530 unit, size); 531 } 532 533 return( addr ); 534 } 535 536 537 /*--------------------------------------------------------- 538 ** 539 ** BrookTree 848 character device driver routines 540 ** 541 **--------------------------------------------------------- 542 */ 543 544 #define VIDEO_DEV 0x00 545 #define TUNER_DEV 0x01 546 #define VBI_DEV 0x02 547 548 #define UNIT(x) ((x) & 0x0f) 549 #define FUNCTION(x) (x >> 4) 550 551 /* 552 * 553 */ 554 int 555 bktr_open( dev_t dev, int flags, int fmt, struct proc *p ) 556 { 557 bktr_ptr_t bktr; 558 int unit; 559 int result; 560 561 unit = UNIT( minor(dev) ); 562 563 /* Get the device data */ 564 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 565 if (bktr == NULL) { 566 /* the device is no longer valid/functioning */ 567 return (ENXIO); 568 } 569 570 if (!(bktr->flags & METEOR_INITALIZED)) /* device not found */ 571 return( ENXIO ); 572 573 /* Record that the device is now busy */ 574 device_busy(devclass_get_device(bktr_devclass, unit)); 575 576 577 if (bt848_card != -1) { 578 if ((bt848_card >> 8 == unit ) && 579 ( (bt848_card & 0xff) < Bt848_MAX_CARD )) { 580 if ( bktr->bt848_card != (bt848_card & 0xff) ) { 581 bktr->bt848_card = (bt848_card & 0xff); 582 probeCard(bktr, FALSE, unit); 583 } 584 } 585 } 586 587 if (bt848_tuner != -1) { 588 if ((bt848_tuner >> 8 == unit ) && 589 ( (bt848_tuner & 0xff) < Bt848_MAX_TUNER )) { 590 if ( bktr->bt848_tuner != (bt848_tuner & 0xff) ) { 591 bktr->bt848_tuner = (bt848_tuner & 0xff); 592 probeCard(bktr, FALSE, unit); 593 } 594 } 595 } 596 597 if (bt848_reverse_mute != -1) { 598 if ((bt848_reverse_mute >> 8) == unit ) { 599 bktr->reverse_mute = bt848_reverse_mute & 0xff; 600 } 601 } 602 603 if (bt848_slow_msp_audio != -1) { 604 if ((bt848_slow_msp_audio >> 8) == unit ) { 605 bktr->slow_msp_audio = (bt848_slow_msp_audio & 0xff); 606 } 607 } 608 609 switch ( FUNCTION( minor(dev) ) ) { 610 case VIDEO_DEV: 611 result = video_open( bktr ); 612 break; 613 case TUNER_DEV: 614 result = tuner_open( bktr ); 615 break; 616 case VBI_DEV: 617 result = vbi_open( bktr ); 618 break; 619 default: 620 result = ENXIO; 621 break; 622 } 623 624 /* If there was an error opening the device, undo the busy status */ 625 if (result != 0) 626 device_unbusy(devclass_get_device(bktr_devclass, unit)); 627 return( result ); 628 } 629 630 631 /* 632 * 633 */ 634 int 635 bktr_close( dev_t dev, int flags, int fmt, struct proc *p ) 636 { 637 bktr_ptr_t bktr; 638 int unit; 639 int result; 640 641 unit = UNIT( minor(dev) ); 642 643 /* Get the device data */ 644 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 645 if (bktr == NULL) { 646 /* the device is no longer valid/functioning */ 647 return (ENXIO); 648 } 649 650 switch ( FUNCTION( minor(dev) ) ) { 651 case VIDEO_DEV: 652 result = video_close( bktr ); 653 break; 654 case TUNER_DEV: 655 result = tuner_close( bktr ); 656 break; 657 case VBI_DEV: 658 result = vbi_close( bktr ); 659 break; 660 default: 661 return (ENXIO); 662 break; 663 } 664 665 device_unbusy(devclass_get_device(bktr_devclass, unit)); 666 return( result ); 667 } 668 669 670 /* 671 * 672 */ 673 int 674 bktr_read( dev_t dev, struct uio *uio, int ioflag ) 675 { 676 bktr_ptr_t bktr; 677 int unit; 678 679 unit = UNIT(minor(dev)); 680 681 /* Get the device data */ 682 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 683 if (bktr == NULL) { 684 /* the device is no longer valid/functioning */ 685 return (ENXIO); 686 } 687 688 switch ( FUNCTION( minor(dev) ) ) { 689 case VIDEO_DEV: 690 return( video_read( bktr, unit, dev, uio ) ); 691 case VBI_DEV: 692 return( vbi_read( bktr, uio, ioflag ) ); 693 } 694 return( ENXIO ); 695 } 696 697 698 /* 699 * 700 */ 701 int 702 bktr_write( dev_t dev, struct uio *uio, int ioflag ) 703 { 704 return( EINVAL ); /* XXX or ENXIO ? */ 705 } 706 707 708 /* 709 * 710 */ 711 int 712 bktr_ioctl( dev_t dev, ioctl_cmd_t cmd, caddr_t arg, int flag, struct proc* pr ) 713 { 714 bktr_ptr_t bktr; 715 int unit; 716 717 unit = UNIT(minor(dev)); 718 719 /* Get the device data */ 720 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 721 if (bktr == NULL) { 722 /* the device is no longer valid/functioning */ 723 return (ENXIO); 724 } 725 726 if (bktr->bigbuf == 0) /* no frame buffer allocated (ioctl failed) */ 727 return( ENOMEM ); 728 729 switch ( FUNCTION( minor(dev) ) ) { 730 case VIDEO_DEV: 731 return( video_ioctl( bktr, unit, cmd, arg, pr ) ); 732 case TUNER_DEV: 733 return( tuner_ioctl( bktr, unit, cmd, arg, pr ) ); 734 } 735 736 return( ENXIO ); 737 } 738 739 740 /* 741 * 742 */ 743 int 744 bktr_mmap( dev_t dev, vm_offset_t offset, int nprot ) 745 { 746 int unit; 747 bktr_ptr_t bktr; 748 749 unit = UNIT(minor(dev)); 750 751 if (FUNCTION(minor(dev)) > 0) /* only allow mmap on /dev/bktr[n] */ 752 return( -1 ); 753 754 /* Get the device data */ 755 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 756 if (bktr == NULL) { 757 /* the device is no longer valid/functioning */ 758 return (ENXIO); 759 } 760 761 if (nprot & PROT_EXEC) 762 return( -1 ); 763 764 if (offset < 0) 765 return( -1 ); 766 767 if (offset >= bktr->alloc_pages * PAGE_SIZE) 768 return( -1 ); 769 770 return( atop(vtophys(bktr->bigbuf) + offset) ); 771 } 772 773 int bktr_poll( dev_t dev, int events, struct proc *p) 774 { 775 int unit; 776 bktr_ptr_t bktr; 777 int revents = 0; 778 DECLARE_INTR_MASK(s); 779 780 unit = UNIT(minor(dev)); 781 782 /* Get the device data */ 783 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 784 if (bktr == NULL) { 785 /* the device is no longer valid/functioning */ 786 return (ENXIO); 787 } 788 789 DISABLE_INTR(s); 790 791 if (events & (POLLIN | POLLRDNORM)) { 792 793 switch ( FUNCTION( minor(dev) ) ) { 794 case VBI_DEV: 795 if(bktr->vbisize == 0) 796 selrecord(p, &bktr->vbi_select); 797 else 798 revents |= events & (POLLIN | POLLRDNORM); 799 break; 800 } 801 } 802 803 ENABLE_INTR(s); 804 805 return (revents); 806 } 807 808 #endif /* FreeBSD 4.x specific kernel interface routines */ 809 810 /**********************************/ 811 /* *** FreeBSD 2.2.x and 3.x *** */ 812 /**********************************/ 813 814 #if ((__FreeBSD__ == 2) || (__FreeBSD__ == 3)) 815 816 static bktr_reg_t brooktree[ NBKTR ]; 817 818 static const char* bktr_probe( pcici_t tag, pcidi_t type ); 819 static void bktr_attach( pcici_t tag, int unit ); 820 static void bktr_intr(void *arg) { common_bktr_intr(arg); } 821 822 static u_long bktr_count; 823 824 static struct pci_device bktr_device = { 825 "bktr", 826 bktr_probe, 827 bktr_attach, 828 &bktr_count 829 }; 830 831 DATA_SET (pcidevice_set, bktr_device); 832 833 static d_open_t bktr_open; 834 static d_close_t bktr_close; 835 static d_read_t bktr_read; 836 static d_write_t bktr_write; 837 static d_ioctl_t bktr_ioctl; 838 static d_mmap_t bktr_mmap; 839 static d_poll_t bktr_poll; 840 841 #define CDEV_MAJOR 92 842 static struct cdevsw bktr_cdevsw = 843 { 844 bktr_open, bktr_close, bktr_read, bktr_write, 845 bktr_ioctl, nostop, nullreset, nodevtotty, 846 bktr_poll, bktr_mmap, NULL, "bktr", 847 NULL, -1 848 }; 849 850 static int bktr_devsw_installed; 851 852 static void 853 bktr_drvinit( void *unused ) 854 { 855 dev_t dev; 856 857 if ( ! bktr_devsw_installed ) { 858 dev = makedev(CDEV_MAJOR, 0); 859 cdevsw_add(&dev,&bktr_cdevsw, NULL); 860 bktr_devsw_installed = 1; 861 } 862 } 863 864 SYSINIT(bktrdev,SI_SUB_DRIVERS,SI_ORDER_MIDDLE+CDEV_MAJOR,bktr_drvinit,NULL) 865 866 /* 867 * the boot time probe routine. 868 */ 869 static const char* 870 bktr_probe( pcici_t tag, pcidi_t type ) 871 { 872 unsigned int rev = pci_conf_read( tag, PCIR_REVID) & 0x000000ff; 873 874 if (PCI_VENDOR(type) == PCI_VENDOR_BROOKTREE) 875 { 876 switch (PCI_PRODUCT(type)) { 877 case PCI_PRODUCT_BROOKTREE_BT848: 878 if (rev == 0x12) return("BrookTree 848A"); 879 else return("BrookTree 848"); 880 case PCI_PRODUCT_BROOKTREE_BT849: 881 return("BrookTree 849A"); 882 case PCI_PRODUCT_BROOKTREE_BT878: 883 return("BrookTree 878"); 884 case PCI_PRODUCT_BROOKTREE_BT879: 885 return("BrookTree 879"); 886 } 887 }; 888 889 return ((char *)0); 890 } 891 892 /* 893 * the attach routine. 894 */ 895 static void 896 bktr_attach( pcici_t tag, int unit ) 897 { 898 bktr_ptr_t bktr; 899 u_long latency; 900 u_long fun; 901 unsigned int rev; 902 unsigned long base; 903 #ifdef BROOKTREE_IRQ 904 u_long old_irq, new_irq; 905 #endif 906 907 bktr = &brooktree[unit]; 908 909 if (unit >= NBKTR) { 910 printf("brooktree%d: attach: only %d units configured.\n", 911 unit, NBKTR); 912 printf("brooktree%d: attach: invalid unit number.\n", unit); 913 return; 914 } 915 916 /* build the device name for bktr_name() */ 917 snprintf(bktr->bktr_xname, sizeof(bktr->bktr_xname), "bktr%d",unit); 918 919 /* Enable Memory Mapping */ 920 fun = pci_conf_read(tag, PCI_COMMAND_STATUS_REG); 921 pci_conf_write(tag, PCI_COMMAND_STATUS_REG, fun | 2); 922 923 /* Enable Bus Mastering */ 924 fun = pci_conf_read(tag, PCI_COMMAND_STATUS_REG); 925 pci_conf_write(tag, PCI_COMMAND_STATUS_REG, fun | 4); 926 927 bktr->tag = tag; 928 929 930 /* 931 * Map control/status registers 932 */ 933 pci_map_mem( tag, PCI_MAP_REG_START, (vm_offset_t *) &base, 934 &bktr->phys_base ); 935 #if (__FreeBSD_version >= 300000) 936 bktr->memt = I386_BUS_SPACE_MEM; /* XXX should use proper bus space */ 937 bktr->memh = (bus_space_handle_t)base; /* XXX functions here */ 938 #endif 939 940 /* 941 * Disable the brooktree device 942 */ 943 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED); 944 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED); 945 946 #ifdef BROOKTREE_IRQ /* from the configuration file */ 947 old_irq = pci_conf_read(tag, PCI_INTERRUPT_REG); 948 pci_conf_write(tag, PCI_INTERRUPT_REG, BROOKTREE_IRQ); 949 new_irq = pci_conf_read(tag, PCI_INTERRUPT_REG); 950 printf("bktr%d: attach: irq changed from %d to %d\n", 951 unit, (old_irq & 0xff), (new_irq & 0xff)); 952 #endif 953 954 /* 955 * setup the interrupt handling routine 956 */ 957 pci_map_int(tag, bktr_intr, (void*) bktr, &tty_imask); 958 959 960 /* Update the Device Control Register */ 961 /* on Bt878 and Bt879 cards */ 962 fun = pci_conf_read(tag, 0x40); 963 fun = fun | 1; /* Enable writes to the sub-system vendor ID */ 964 965 #if defined( BKTR_430_FX_MODE ) 966 if (bootverbose) printf("Using 430 FX chipset compatibilty mode\n"); 967 fun = fun | 2; /* Enable Intel 430 FX compatibility mode */ 968 #endif 969 970 #if defined( BKTR_SIS_VIA_MODE ) 971 if (bootverbose) printf("Using SiS/VIA chipset compatibilty mode\n"); 972 fun = fun | 4; /* Enable SiS/VIA compatibility mode (usefull for 973 OPTi chipset motherboards too */ 974 #endif 975 pci_conf_write(tag, 0x40, fun); 976 977 978 /* XXX call bt848_i2c dependent attach() routine */ 979 #if defined(BKTR_USE_FREEBSD_SMBUS) 980 if (bt848_i2c_attach(unit, bktr, &bktr->i2c_sc)) 981 printf("bktr%d: i2c_attach: can't attach\n", unit); 982 #endif 983 984 985 /* 986 * PCI latency timer. 32 is a good value for 4 bus mastering slots, if 987 * you have more than four, then 16 would probably be a better value. 988 */ 989 #ifndef BROOKTREE_DEF_LATENCY_VALUE 990 #define BROOKTREE_DEF_LATENCY_VALUE 10 991 #endif 992 latency = pci_conf_read(tag, PCI_LATENCY_TIMER); 993 latency = (latency >> 8) & 0xff; 994 if ( bootverbose ) { 995 if (latency) 996 printf("brooktree%d: PCI bus latency is", unit); 997 else 998 printf("brooktree%d: PCI bus latency was 0 changing to", 999 unit); 1000 } 1001 if ( !latency ) { 1002 latency = BROOKTREE_DEF_LATENCY_VALUE; 1003 pci_conf_write(tag, PCI_LATENCY_TIMER, latency<<8); 1004 } 1005 if ( bootverbose ) { 1006 printf(" %d.\n", (int) latency); 1007 } 1008 1009 1010 /* read the pci device id and revision id */ 1011 fun = pci_conf_read(tag, PCI_ID_REG); 1012 rev = pci_conf_read(tag, PCIR_REVID) & 0x000000ff; 1013 1014 /* call the common attach code */ 1015 common_bktr_attach( bktr, unit, fun, rev ); 1016 1017 } 1018 1019 1020 /* 1021 * Special Memory Allocation 1022 */ 1023 vm_offset_t 1024 get_bktr_mem( int unit, unsigned size ) 1025 { 1026 vm_offset_t addr = 0; 1027 1028 addr = vm_page_alloc_contig(size, 0x100000, 0xffffffff, 1<<24); 1029 if (addr == 0) 1030 addr = vm_page_alloc_contig(size, 0x100000, 0xffffffff, 1031 PAGE_SIZE); 1032 if (addr == 0) { 1033 printf("bktr%d: Unable to allocate %d bytes of memory.\n", 1034 unit, size); 1035 } 1036 1037 return( addr ); 1038 } 1039 1040 /*--------------------------------------------------------- 1041 ** 1042 ** BrookTree 848 character device driver routines 1043 ** 1044 **--------------------------------------------------------- 1045 */ 1046 1047 1048 #define VIDEO_DEV 0x00 1049 #define TUNER_DEV 0x01 1050 #define VBI_DEV 0x02 1051 1052 #define UNIT(x) ((x) & 0x0f) 1053 #define FUNCTION(x) ((x >> 4) & 0x0f) 1054 1055 1056 /* 1057 * 1058 */ 1059 int 1060 bktr_open( dev_t dev, int flags, int fmt, struct proc *p ) 1061 { 1062 bktr_ptr_t bktr; 1063 int unit; 1064 1065 unit = UNIT( minor(dev) ); 1066 if (unit >= NBKTR) /* unit out of range */ 1067 return( ENXIO ); 1068 1069 bktr = &(brooktree[ unit ]); 1070 1071 if (!(bktr->flags & METEOR_INITALIZED)) /* device not found */ 1072 return( ENXIO ); 1073 1074 1075 if (bt848_card != -1) { 1076 if ((bt848_card >> 8 == unit ) && 1077 ( (bt848_card & 0xff) < Bt848_MAX_CARD )) { 1078 if ( bktr->bt848_card != (bt848_card & 0xff) ) { 1079 bktr->bt848_card = (bt848_card & 0xff); 1080 probeCard(bktr, FALSE, unit); 1081 } 1082 } 1083 } 1084 1085 if (bt848_tuner != -1) { 1086 if ((bt848_tuner >> 8 == unit ) && 1087 ( (bt848_tuner & 0xff) < Bt848_MAX_TUNER )) { 1088 if ( bktr->bt848_tuner != (bt848_tuner & 0xff) ) { 1089 bktr->bt848_tuner = (bt848_tuner & 0xff); 1090 probeCard(bktr, FALSE, unit); 1091 } 1092 } 1093 } 1094 1095 if (bt848_reverse_mute != -1) { 1096 if ((bt848_reverse_mute >> 8) == unit ) { 1097 bktr->reverse_mute = bt848_reverse_mute & 0xff; 1098 } 1099 } 1100 1101 if (bt848_slow_msp_audio != -1) { 1102 if ((bt848_slow_msp_audio >> 8) == unit ) { 1103 bktr->slow_msp_audio = (bt848_slow_msp_audio & 0xff); 1104 } 1105 } 1106 1107 switch ( FUNCTION( minor(dev) ) ) { 1108 case VIDEO_DEV: 1109 return( video_open( bktr ) ); 1110 case TUNER_DEV: 1111 return( tuner_open( bktr ) ); 1112 case VBI_DEV: 1113 return( vbi_open( bktr ) ); 1114 } 1115 return( ENXIO ); 1116 } 1117 1118 1119 /* 1120 * 1121 */ 1122 int 1123 bktr_close( dev_t dev, int flags, int fmt, struct proc *p ) 1124 { 1125 bktr_ptr_t bktr; 1126 int unit; 1127 1128 unit = UNIT( minor(dev) ); 1129 if (unit >= NBKTR) /* unit out of range */ 1130 return( ENXIO ); 1131 1132 bktr = &(brooktree[ unit ]); 1133 1134 switch ( FUNCTION( minor(dev) ) ) { 1135 case VIDEO_DEV: 1136 return( video_close( bktr ) ); 1137 case TUNER_DEV: 1138 return( tuner_close( bktr ) ); 1139 case VBI_DEV: 1140 return( vbi_close( bktr ) ); 1141 } 1142 1143 return( ENXIO ); 1144 } 1145 1146 /* 1147 * 1148 */ 1149 int 1150 bktr_read( dev_t dev, struct uio *uio, int ioflag ) 1151 { 1152 bktr_ptr_t bktr; 1153 int unit; 1154 1155 unit = UNIT(minor(dev)); 1156 if (unit >= NBKTR) /* unit out of range */ 1157 return( ENXIO ); 1158 1159 bktr = &(brooktree[unit]); 1160 1161 switch ( FUNCTION( minor(dev) ) ) { 1162 case VIDEO_DEV: 1163 return( video_read( bktr, unit, dev, uio ) ); 1164 case VBI_DEV: 1165 return( vbi_read( bktr, uio, ioflag ) ); 1166 } 1167 return( ENXIO ); 1168 } 1169 1170 1171 /* 1172 * 1173 */ 1174 int 1175 bktr_write( dev_t dev, struct uio *uio, int ioflag ) 1176 { 1177 return( EINVAL ); /* XXX or ENXIO ? */ 1178 } 1179 1180 /* 1181 * 1182 */ 1183 int 1184 bktr_ioctl( dev_t dev, ioctl_cmd_t cmd, caddr_t arg, int flag, struct proc* pr ) 1185 { 1186 bktr_ptr_t bktr; 1187 int unit; 1188 1189 unit = UNIT(minor(dev)); 1190 if (unit >= NBKTR) /* unit out of range */ 1191 return( ENXIO ); 1192 1193 bktr = &(brooktree[ unit ]); 1194 1195 if (bktr->bigbuf == 0) /* no frame buffer allocated (ioctl failed) */ 1196 return( ENOMEM ); 1197 1198 switch ( FUNCTION( minor(dev) ) ) { 1199 case VIDEO_DEV: 1200 return( video_ioctl( bktr, unit, cmd, arg, pr ) ); 1201 case TUNER_DEV: 1202 return( tuner_ioctl( bktr, unit, cmd, arg, pr ) ); 1203 } 1204 1205 return( ENXIO ); 1206 } 1207 1208 /* 1209 * bktr_mmap. 1210 * Note: 2.2.5/2.2.6/2.2.7/3.0 users must manually 1211 * edit the line below and change "vm_offset_t" to "int" 1212 */ 1213 int bktr_mmap( dev_t dev, vm_offset_t offset, int nprot ) 1214 1215 { 1216 int unit; 1217 bktr_ptr_t bktr; 1218 1219 unit = UNIT(minor(dev)); 1220 1221 if (unit >= NBKTR || FUNCTION(minor(dev)) > 0) 1222 return( -1 ); 1223 1224 bktr = &(brooktree[ unit ]); 1225 1226 if (nprot & PROT_EXEC) 1227 return( -1 ); 1228 1229 if (offset < 0) 1230 return( -1 ); 1231 1232 if (offset >= bktr->alloc_pages * PAGE_SIZE) 1233 return( -1 ); 1234 1235 return( i386_btop(vtophys(bktr->bigbuf) + offset) ); 1236 } 1237 1238 int bktr_poll( dev_t dev, int events, struct proc *p) 1239 { 1240 int unit; 1241 bktr_ptr_t bktr; 1242 int revents = 0; 1243 1244 unit = UNIT(minor(dev)); 1245 1246 if (unit >= NBKTR) 1247 return( -1 ); 1248 1249 bktr = &(brooktree[ unit ]); 1250 1251 disable_intr(); 1252 1253 if (events & (POLLIN | POLLRDNORM)) { 1254 1255 switch ( FUNCTION( minor(dev) ) ) { 1256 case VBI_DEV: 1257 if(bktr->vbisize == 0) 1258 selrecord(p, &bktr->vbi_select); 1259 else 1260 revents |= events & (POLLIN | POLLRDNORM); 1261 break; 1262 } 1263 } 1264 1265 enable_intr(); 1266 1267 return (revents); 1268 } 1269 1270 1271 #endif /* FreeBSD 2.2.x and 3.x specific kernel interface routines */ 1272 1273 1274 /*****************/ 1275 /* *** BSDI *** */ 1276 /*****************/ 1277 1278 #if defined(__bsdi__) 1279 #endif /* __bsdi__ BSDI specific kernel interface routines */ 1280 1281 1282 /*****************************/ 1283 /* *** OpenBSD / NetBSD *** */ 1284 /*****************************/ 1285 #if defined(__NetBSD__) || defined(__OpenBSD__) 1286 1287 #define IPL_VIDEO IPL_BIO /* XXX */ 1288 1289 static int bktr_intr(void *arg) { return common_bktr_intr(arg); } 1290 1291 #define bktr_open bktropen 1292 #define bktr_close bktrclose 1293 #define bktr_read bktrread 1294 #define bktr_write bktrwrite 1295 #define bktr_ioctl bktrioctl 1296 #define bktr_mmap bktrmmap 1297 1298 #ifdef __OpenBSD__ 1299 int bktr_open __P((dev_t, int, int, struct proc *)); 1300 int bktr_close __P((dev_t, int, int, struct proc *)); 1301 int bktr_read __P((dev_t, struct uio *, int)); 1302 int bktr_write __P((dev_t, struct uio *, int)); 1303 int bktr_ioctl __P((dev_t, ioctl_cmd_t, caddr_t, int, struct proc *)); 1304 paddr_t bktr_mmap __P((dev_t, off_t, int)); 1305 #endif 1306 1307 vm_offset_t vm_page_alloc_contig(vm_offset_t, vm_offset_t, 1308 vm_offset_t, vm_offset_t); 1309 1310 #if defined(__OpenBSD__) 1311 static int bktr_probe __P((struct device *, void *, void *)); 1312 #else 1313 static int bktr_probe __P((struct device *, struct cfdata *, void *)); 1314 #endif 1315 static void bktr_attach __P((struct device *, struct device *, void *)); 1316 1317 struct cfattach bktr_ca = { 1318 sizeof(struct bktr_softc), bktr_probe, bktr_attach 1319 }; 1320 1321 #if defined(__NetBSD__) 1322 extern struct cfdriver bktr_cd; 1323 #else 1324 struct cfdriver bktr_cd = { 1325 NULL, "bktr", DV_DULL 1326 }; 1327 #endif 1328 1329 int 1330 bktr_probe(parent, match, aux) 1331 struct device *parent; 1332 #if defined(__OpenBSD__) 1333 void *match; 1334 #else 1335 struct cfdata *match; 1336 #endif 1337 void *aux; 1338 { 1339 struct pci_attach_args *pa = aux; 1340 1341 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_BROOKTREE && 1342 (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT848 || 1343 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT849 || 1344 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT878 || 1345 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT879)) 1346 return 1; 1347 1348 return 0; 1349 } 1350 1351 1352 /* 1353 * the attach routine. 1354 */ 1355 static void 1356 bktr_attach(struct device *parent, struct device *self, void *aux) 1357 { 1358 bktr_ptr_t bktr; 1359 u_long latency; 1360 u_long fun; 1361 unsigned int rev; 1362 struct pci_attach_args *pa = aux; 1363 pci_intr_handle_t ih; 1364 const char *intrstr; 1365 int retval; 1366 int unit; 1367 1368 bktr = (bktr_ptr_t)self; 1369 unit = bktr->bktr_dev.dv_unit; 1370 bktr->dmat = pa->pa_dmat; 1371 1372 #ifndef __OpenBSD__ 1373 printf("\n"); 1374 #endif 1375 1376 /* 1377 * map memory 1378 */ 1379 retval = pci_mapreg_map(pa, PCI_MAPREG_START, 1380 PCI_MAPREG_TYPE_MEM 1381 | PCI_MAPREG_MEM_TYPE_32BIT, 0, 1382 &bktr->memt, &bktr->memh, NULL, 1383 &bktr->obmemsz, 0); 1384 DPR(("pci_mapreg_map: memt %x, memh %x, size %x\n", 1385 bktr->memt, (u_int)bktr->memh, (u_int)bktr->obmemsz)); 1386 if (retval) { 1387 printf("%s: couldn't map memory\n", bktr_name(bktr)); 1388 return; 1389 } 1390 1391 /* 1392 * Disable the brooktree device 1393 */ 1394 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED); 1395 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED); 1396 1397 /* 1398 * map interrupt 1399 */ 1400 if (pci_intr_map(pa, &ih)) { 1401 printf("%s: couldn't map interrupt\n", 1402 bktr_name(bktr)); 1403 return; 1404 } 1405 intrstr = pci_intr_string(pa->pa_pc, ih); 1406 bktr->ih = pci_intr_establish(pa->pa_pc, ih, IPL_VIDEO, 1407 bktr_intr, bktr 1408 #ifdef __OpenBSD__ 1409 , bktr->bktr_dev.dv_xname 1410 #endif 1411 ); 1412 if (bktr->ih == NULL) { 1413 printf("%s: couldn't establish interrupt", 1414 bktr_name(bktr)); 1415 if (intrstr != NULL) 1416 printf(" at %s", intrstr); 1417 printf("\n"); 1418 return; 1419 } 1420 if (intrstr != NULL) 1421 #ifdef __NetBSD__ 1422 printf("%s: interrupting at %s\n", bktr_name(bktr), 1423 intrstr); 1424 #else 1425 printf(": %s\n", intrstr); 1426 #endif 1427 1428 /* 1429 * PCI latency timer. 32 is a good value for 4 bus mastering slots, if 1430 * you have more than four, then 16 would probably be a better value. 1431 */ 1432 #ifndef BROOKTREE_DEF_LATENCY_VALUE 1433 #define BROOKTREE_DEF_LATENCY_VALUE 10 1434 #endif 1435 latency = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_LATENCY_TIMER); 1436 latency = (latency >> 8) & 0xff; 1437 1438 if (!latency) { 1439 if (bootverbose) { 1440 printf("%s: PCI bus latency was 0 changing to %d", 1441 bktr_name(bktr), BROOKTREE_DEF_LATENCY_VALUE); 1442 } 1443 latency = BROOKTREE_DEF_LATENCY_VALUE; 1444 pci_conf_write(pa->pa_pc, pa->pa_tag, 1445 PCI_LATENCY_TIMER, latency<<8); 1446 } 1447 1448 1449 /* Enabled Bus Master 1450 XXX: check if all old DMA is stopped first (e.g. after warm 1451 boot) */ 1452 fun = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); 1453 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, 1454 fun | PCI_COMMAND_MASTER_ENABLE); 1455 1456 /* read the pci id and determine the card type */ 1457 fun = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_ID_REG); 1458 rev = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_CLASS_REG) & 0x000000ff; 1459 1460 common_bktr_attach(bktr, unit, fun, rev); 1461 } 1462 1463 1464 /* 1465 * Special Memory Allocation 1466 */ 1467 vm_offset_t 1468 get_bktr_mem(bktr, dmapp, size) 1469 bktr_ptr_t bktr; 1470 bus_dmamap_t *dmapp; 1471 unsigned int size; 1472 { 1473 bus_dma_tag_t dmat = bktr->dmat; 1474 bus_dma_segment_t seg; 1475 bus_size_t align; 1476 int rseg; 1477 caddr_t kva; 1478 1479 /* 1480 * Allocate a DMA area 1481 */ 1482 align = 1 << 24; 1483 if (bus_dmamem_alloc(dmat, size, align, 0, &seg, 1, 1484 &rseg, BUS_DMA_NOWAIT)) { 1485 align = PAGE_SIZE; 1486 if (bus_dmamem_alloc(dmat, size, align, 0, &seg, 1, 1487 &rseg, BUS_DMA_NOWAIT)) { 1488 printf("%s: Unable to dmamem_alloc of %d bytes\n", 1489 bktr_name(bktr), size); 1490 return 0; 1491 } 1492 } 1493 if (bus_dmamem_map(dmat, &seg, rseg, size, 1494 &kva, BUS_DMA_NOWAIT|BUS_DMA_COHERENT)) { 1495 printf("%s: Unable to dmamem_map of %d bytes\n", 1496 bktr_name(bktr), size); 1497 bus_dmamem_free(dmat, &seg, rseg); 1498 return 0; 1499 } 1500 /* 1501 * Create and locd the DMA map for the DMA area 1502 */ 1503 if (bus_dmamap_create(dmat, size, 1, size, 0, BUS_DMA_NOWAIT, dmapp)) { 1504 printf("%s: Unable to dmamap_create of %d bytes\n", 1505 bktr_name(bktr), size); 1506 bus_dmamem_unmap(dmat, kva, size); 1507 bus_dmamem_free(dmat, &seg, rseg); 1508 return 0; 1509 } 1510 if (bus_dmamap_load(dmat, *dmapp, kva, size, NULL, BUS_DMA_NOWAIT)) { 1511 printf("%s: Unable to dmamap_load of %d bytes\n", 1512 bktr_name(bktr), size); 1513 bus_dmamem_unmap(dmat, kva, size); 1514 bus_dmamem_free(dmat, &seg, rseg); 1515 bus_dmamap_destroy(dmat, *dmapp); 1516 return 0; 1517 } 1518 return (vm_offset_t)kva; 1519 } 1520 1521 void 1522 free_bktr_mem(bktr, dmap, kva) 1523 bktr_ptr_t bktr; 1524 bus_dmamap_t dmap; 1525 vm_offset_t kva; 1526 { 1527 bus_dma_tag_t dmat = bktr->dmat; 1528 1529 bus_dmamem_unmap(dmat, (caddr_t)kva, dmap->dm_mapsize); 1530 bus_dmamem_free(dmat, dmap->dm_segs, 1); 1531 bus_dmamap_destroy(dmat, dmap); 1532 } 1533 1534 1535 /*--------------------------------------------------------- 1536 ** 1537 ** BrookTree 848 character device driver routines 1538 ** 1539 **--------------------------------------------------------- 1540 */ 1541 1542 1543 #define VIDEO_DEV 0x00 1544 #define TUNER_DEV 0x01 1545 #define VBI_DEV 0x02 1546 1547 #define UNIT(x) (minor((x) & 0x0f)) 1548 #define FUNCTION(x) (minor((x >> 4) & 0x0f)) 1549 1550 /* 1551 * 1552 */ 1553 int 1554 bktr_open(dev_t dev, int flags, int fmt, struct proc *p) 1555 { 1556 bktr_ptr_t bktr; 1557 int unit; 1558 1559 unit = UNIT(dev); 1560 1561 /* unit out of range */ 1562 if ((unit >= bktr_cd.cd_ndevs) || (bktr_cd.cd_devs[unit] == NULL)) 1563 return(ENXIO); 1564 1565 bktr = bktr_cd.cd_devs[unit]; 1566 1567 if (!(bktr->flags & METEOR_INITALIZED)) /* device not found */ 1568 return(ENXIO); 1569 1570 switch (FUNCTION(dev)) { 1571 case VIDEO_DEV: 1572 return(video_open(bktr)); 1573 case TUNER_DEV: 1574 return(tuner_open(bktr)); 1575 case VBI_DEV: 1576 return(vbi_open(bktr)); 1577 } 1578 1579 return(ENXIO); 1580 } 1581 1582 1583 /* 1584 * 1585 */ 1586 int 1587 bktr_close(dev_t dev, int flags, int fmt, struct proc *p) 1588 { 1589 bktr_ptr_t bktr; 1590 int unit; 1591 1592 unit = UNIT(dev); 1593 1594 bktr = bktr_cd.cd_devs[unit]; 1595 1596 switch (FUNCTION(dev)) { 1597 case VIDEO_DEV: 1598 return(video_close(bktr)); 1599 case TUNER_DEV: 1600 return(tuner_close(bktr)); 1601 case VBI_DEV: 1602 return(vbi_close(bktr)); 1603 } 1604 1605 return(ENXIO); 1606 } 1607 1608 /* 1609 * 1610 */ 1611 int 1612 bktr_read(dev_t dev, struct uio *uio, int ioflag) 1613 { 1614 bktr_ptr_t bktr; 1615 int unit; 1616 1617 unit = UNIT(dev); 1618 1619 bktr = bktr_cd.cd_devs[unit]; 1620 1621 switch (FUNCTION(dev)) { 1622 case VIDEO_DEV: 1623 return(video_read(bktr, unit, dev, uio)); 1624 case VBI_DEV: 1625 return(vbi_read(bktr, uio, ioflag)); 1626 } 1627 1628 return(ENXIO); 1629 } 1630 1631 1632 /* 1633 * 1634 */ 1635 int 1636 bktr_write(dev_t dev, struct uio *uio, int ioflag) 1637 { 1638 /* operation not supported */ 1639 return(EOPNOTSUPP); 1640 } 1641 1642 /* 1643 * 1644 */ 1645 int 1646 bktr_ioctl(dev_t dev, ioctl_cmd_t cmd, caddr_t arg, int flag, struct proc* pr) 1647 { 1648 bktr_ptr_t bktr; 1649 int unit; 1650 1651 unit = UNIT(dev); 1652 1653 bktr = bktr_cd.cd_devs[unit]; 1654 1655 if (bktr->bigbuf == 0) /* no frame buffer allocated (ioctl failed) */ 1656 return(ENOMEM); 1657 1658 switch (FUNCTION(dev)) { 1659 case VIDEO_DEV: 1660 return(video_ioctl(bktr, unit, cmd, arg, pr)); 1661 case TUNER_DEV: 1662 return(tuner_ioctl(bktr, unit, cmd, arg, pr)); 1663 } 1664 1665 return(ENXIO); 1666 } 1667 1668 /* 1669 * 1670 */ 1671 paddr_t 1672 bktr_mmap(dev_t dev, off_t offset, int nprot) 1673 { 1674 int unit; 1675 bktr_ptr_t bktr; 1676 1677 unit = UNIT(dev); 1678 1679 if (FUNCTION(dev) > 0) /* only allow mmap on /dev/bktr[n] */ 1680 return(-1); 1681 1682 bktr = bktr_cd.cd_devs[unit]; 1683 1684 if ((vaddr_t)offset < 0) 1685 return(-1); 1686 1687 if ((vaddr_t)offset >= bktr->alloc_pages * PAGE_SIZE) 1688 return(-1); 1689 1690 return (bus_dmamem_mmap(bktr->dmat, bktr->dm_mem->dm_segs, 1, 1691 (vaddr_t)offset, nprot, BUS_DMA_WAITOK)); 1692 } 1693 1694 #endif /* __NetBSD__ || __OpenBSD__ */ 1695