bktr_os.c revision 119277
1/* $FreeBSD: head/sys/dev/bktr/bktr_os.c 119277 2003-08-22 05:54:52Z imp $ */ 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#include <pci/pcivar.h> 100#include <pci/pcireg.h> 101#else 102#include <dev/pci/pcivar.h> 103#include <dev/pci/pcireg.h> 104#endif 105 106#include <sys/sysctl.h> 107int bt848_card = -1; 108int bt848_tuner = -1; 109int bt848_reverse_mute = -1; 110int bt848_format = -1; 111int bt848_slow_msp_audio = -1; 112#ifdef BKTR_NEW_MSP34XX_DRIVER 113int bt848_stereo_once = 0; /* no continuous stereo monitoring */ 114int bt848_amsound = 0; /* hard-wire AM sound at 6.5 Hz (france), 115 the autoscan seems work well only with FM... */ 116int bt848_dolby = 0; 117#endif 118 119SYSCTL_NODE(_hw, OID_AUTO, bt848, CTLFLAG_RW, 0, "Bt848 Driver mgmt"); 120SYSCTL_INT(_hw_bt848, OID_AUTO, card, CTLFLAG_RW, &bt848_card, -1, ""); 121SYSCTL_INT(_hw_bt848, OID_AUTO, tuner, CTLFLAG_RW, &bt848_tuner, -1, ""); 122SYSCTL_INT(_hw_bt848, OID_AUTO, reverse_mute, CTLFLAG_RW, &bt848_reverse_mute, -1, ""); 123SYSCTL_INT(_hw_bt848, OID_AUTO, format, CTLFLAG_RW, &bt848_format, -1, ""); 124SYSCTL_INT(_hw_bt848, OID_AUTO, slow_msp_audio, CTLFLAG_RW, &bt848_slow_msp_audio, -1, ""); 125#ifdef BKTR_NEW_MSP34XX_DRIVER 126SYSCTL_INT(_hw_bt848, OID_AUTO, stereo_once, CTLFLAG_RW, &bt848_stereo_once, 0, ""); 127SYSCTL_INT(_hw_bt848, OID_AUTO, amsound, CTLFLAG_RW, &bt848_amsound, 0, ""); 128SYSCTL_INT(_hw_bt848, OID_AUTO, dolby, CTLFLAG_RW, &bt848_dolby, 0, ""); 129#endif 130 131#endif /* end freebsd section */ 132 133 134 135/****************/ 136/* *** BSDI *** */ 137/****************/ 138#ifdef __bsdi__ 139#endif /* __bsdi__ */ 140 141 142/**************************/ 143/* *** OpenBSD/NetBSD *** */ 144/**************************/ 145#if defined(__NetBSD__) || defined(__OpenBSD__) 146 147#include <sys/param.h> 148#include <sys/systm.h> 149#include <sys/conf.h> 150#include <sys/uio.h> 151#include <sys/kernel.h> 152#include <sys/signalvar.h> 153#include <sys/mman.h> 154#include <sys/poll.h> 155#include <sys/select.h> 156#include <sys/vnode.h> 157 158#include <vm/vm.h> 159 160#ifndef __NetBSD__ 161#include <vm/vm_kern.h> 162#include <vm/pmap.h> 163#include <vm/vm_extern.h> 164#endif 165 166#include <sys/device.h> 167#include <dev/pci/pcivar.h> 168#include <dev/pci/pcireg.h> 169#include <dev/pci/pcidevs.h> 170 171#define BKTR_DEBUG 172#ifdef BKTR_DEBUG 173int bktr_debug = 0; 174#define DPR(x) (bktr_debug ? printf x : 0) 175#else 176#define DPR(x) 177#endif 178#endif /* __NetBSD__ || __OpenBSD__ */ 179 180 181#ifdef __NetBSD__ 182#include <dev/ic/bt8xx.h> /* NetBSD location for .h files */ 183#include <dev/pci/bktr/bktr_reg.h> 184#include <dev/pci/bktr/bktr_tuner.h> 185#include <dev/pci/bktr/bktr_card.h> 186#include <dev/pci/bktr/bktr_audio.h> 187#include <dev/pci/bktr/bktr_core.h> 188#include <dev/pci/bktr/bktr_os.h> 189#else /* Traditional location for .h files */ 190#include <machine/ioctl_meteor.h> 191#include <machine/ioctl_bt848.h> /* extensions to ioctl_meteor.h */ 192#include <dev/bktr/bktr_reg.h> 193#include <dev/bktr/bktr_tuner.h> 194#include <dev/bktr/bktr_card.h> 195#include <dev/bktr/bktr_audio.h> 196#include <dev/bktr/bktr_core.h> 197#include <dev/bktr/bktr_os.h> 198 199#if defined(BKTR_USE_FREEBSD_SMBUS) 200#include <dev/bktr/bktr_i2c.h> 201 202#include "iicbb_if.h" 203#include "smbus_if.h" 204#endif 205#endif 206 207 208/****************************/ 209/* *** FreeBSD 4.x code *** */ 210/****************************/ 211#if (__FreeBSD_version >= 400000) 212 213static int bktr_probe( device_t dev ); 214static int bktr_attach( device_t dev ); 215static int bktr_detach( device_t dev ); 216static int bktr_shutdown( device_t dev ); 217static void bktr_intr(void *arg) { common_bktr_intr(arg); } 218 219static device_method_t bktr_methods[] = { 220 /* Device interface */ 221 DEVMETHOD(device_probe, bktr_probe), 222 DEVMETHOD(device_attach, bktr_attach), 223 DEVMETHOD(device_detach, bktr_detach), 224 DEVMETHOD(device_shutdown, bktr_shutdown), 225 226#if defined(BKTR_USE_FREEBSD_SMBUS) 227 /* iicbb interface */ 228 DEVMETHOD(iicbb_callback, bti2c_iic_callback), 229 DEVMETHOD(iicbb_setsda, bti2c_iic_setsda), 230 DEVMETHOD(iicbb_setscl, bti2c_iic_setscl), 231 DEVMETHOD(iicbb_getsda, bti2c_iic_getsda), 232 DEVMETHOD(iicbb_getscl, bti2c_iic_getscl), 233 DEVMETHOD(iicbb_reset, bti2c_iic_reset), 234 235 /* smbus interface */ 236 DEVMETHOD(smbus_callback, bti2c_smb_callback), 237 DEVMETHOD(smbus_writeb, bti2c_smb_writeb), 238 DEVMETHOD(smbus_writew, bti2c_smb_writew), 239 DEVMETHOD(smbus_readb, bti2c_smb_readb), 240#endif 241 242 { 0, 0 } 243}; 244 245static driver_t bktr_driver = { 246 "bktr", 247 bktr_methods, 248 sizeof(struct bktr_softc), 249}; 250 251static devclass_t bktr_devclass; 252 253static d_open_t bktr_open; 254static d_close_t bktr_close; 255static d_read_t bktr_read; 256static d_write_t bktr_write; 257static d_ioctl_t bktr_ioctl; 258static d_mmap_t bktr_mmap; 259static d_poll_t bktr_poll; 260 261#define CDEV_MAJOR 92 262static struct cdevsw bktr_cdevsw = { 263 .d_open = bktr_open, 264 .d_close = bktr_close, 265 .d_read = bktr_read, 266 .d_write = bktr_write, 267 .d_ioctl = bktr_ioctl, 268 .d_poll = bktr_poll, 269 .d_mmap = bktr_mmap, 270 .d_name = "bktr", 271 .d_maj = CDEV_MAJOR, 272}; 273 274DRIVER_MODULE(bktr, pci, bktr_driver, bktr_devclass, 0, 0); 275#if (__FreeBSD_version > 410000) 276MODULE_DEPEND(bktr, bktr_mem, 1,1,1); 277MODULE_VERSION(bktr, 1); 278#endif 279 280 281/* 282 * the boot time probe routine. 283 */ 284static int 285bktr_probe( device_t dev ) 286{ 287 unsigned int type = pci_get_devid(dev); 288 unsigned int rev = pci_get_revid(dev); 289 290 if (PCI_VENDOR(type) == PCI_VENDOR_BROOKTREE) 291 { 292 switch (PCI_PRODUCT(type)) { 293 case PCI_PRODUCT_BROOKTREE_BT848: 294 if (rev == 0x12) 295 device_set_desc(dev, "BrookTree 848A"); 296 else 297 device_set_desc(dev, "BrookTree 848"); 298 return 0; 299 case PCI_PRODUCT_BROOKTREE_BT849: 300 device_set_desc(dev, "BrookTree 849A"); 301 return 0; 302 case PCI_PRODUCT_BROOKTREE_BT878: 303 device_set_desc(dev, "BrookTree 878"); 304 return 0; 305 case PCI_PRODUCT_BROOKTREE_BT879: 306 device_set_desc(dev, "BrookTree 879"); 307 return 0; 308 } 309 }; 310 311 return ENXIO; 312} 313 314 315/* 316 * the attach routine. 317 */ 318static int 319bktr_attach( device_t dev ) 320{ 321 u_long latency; 322 u_long fun; 323 u_long val; 324 unsigned int rev; 325 unsigned int unit; 326 int error = 0; 327#ifdef BROOKTREE_IRQ 328 u_long old_irq, new_irq; 329#endif 330 331 struct bktr_softc *bktr = device_get_softc(dev); 332 333 unit = device_get_unit(dev); 334 335 /* build the device name for bktr_name() */ 336 snprintf(bktr->bktr_xname, sizeof(bktr->bktr_xname), "bktr%d",unit); 337 338 /* 339 * Enable bus mastering and Memory Mapped device 340 */ 341 val = pci_read_config(dev, PCIR_COMMAND, 4); 342 val |= (PCIM_CMD_MEMEN|PCIM_CMD_BUSMASTEREN); 343 pci_write_config(dev, PCIR_COMMAND, val, 4); 344 345 /* 346 * Map control/status registers. 347 */ 348 bktr->mem_rid = PCIR_MAPS; 349 bktr->res_mem = bus_alloc_resource(dev, SYS_RES_MEMORY, &bktr->mem_rid, 350 0, ~0, 1, RF_ACTIVE); 351 352 353 if (!bktr->res_mem) { 354 device_printf(dev, "could not map memory\n"); 355 error = ENXIO; 356 goto fail; 357 } 358 bktr->memt = rman_get_bustag(bktr->res_mem); 359 bktr->memh = rman_get_bushandle(bktr->res_mem); 360 361 362 /* 363 * Disable the brooktree device 364 */ 365 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED); 366 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED); 367 368 369#ifdef BROOKTREE_IRQ /* from the configuration file */ 370 old_irq = pci_conf_read(tag, PCI_INTERRUPT_REG); 371 pci_conf_write(tag, PCI_INTERRUPT_REG, BROOKTREE_IRQ); 372 new_irq = pci_conf_read(tag, PCI_INTERRUPT_REG); 373 printf("bktr%d: attach: irq changed from %d to %d\n", 374 unit, (old_irq & 0xff), (new_irq & 0xff)); 375#endif 376 377 /* 378 * Allocate our interrupt. 379 */ 380 bktr->irq_rid = 0; 381 bktr->res_irq = bus_alloc_resource(dev, SYS_RES_IRQ, &bktr->irq_rid, 382 0, ~0, 1, RF_SHAREABLE | RF_ACTIVE); 383 if (bktr->res_irq == NULL) { 384 device_printf(dev, "could not map interrupt\n"); 385 error = ENXIO; 386 goto fail; 387 } 388 389 error = bus_setup_intr(dev, bktr->res_irq, INTR_TYPE_TTY, 390 bktr_intr, bktr, &bktr->res_ih); 391 if (error) { 392 device_printf(dev, "could not setup irq\n"); 393 goto fail; 394 395 } 396 397 398 /* Update the Device Control Register */ 399 /* on Bt878 and Bt879 cards */ 400 fun = pci_read_config( dev, 0x40, 2); 401 fun = fun | 1; /* Enable writes to the sub-system vendor ID */ 402 403#if defined( BKTR_430_FX_MODE ) 404 if (bootverbose) printf("Using 430 FX chipset compatibilty mode\n"); 405 fun = fun | 2; /* Enable Intel 430 FX compatibility mode */ 406#endif 407 408#if defined( BKTR_SIS_VIA_MODE ) 409 if (bootverbose) printf("Using SiS/VIA chipset compatibilty mode\n"); 410 fun = fun | 4; /* Enable SiS/VIA compatibility mode (usefull for 411 OPTi chipset motherboards too */ 412#endif 413 pci_write_config(dev, 0x40, fun, 2); 414 415#if defined(BKTR_USE_FREEBSD_SMBUS) 416 if (bt848_i2c_attach(dev)) 417 printf("bktr%d: i2c_attach: can't attach\n", unit); 418#endif 419 420/* 421 * PCI latency timer. 32 is a good value for 4 bus mastering slots, if 422 * you have more than four, then 16 would probably be a better value. 423 */ 424#ifndef BROOKTREE_DEF_LATENCY_VALUE 425#define BROOKTREE_DEF_LATENCY_VALUE 10 426#endif 427 latency = pci_read_config(dev, PCI_LATENCY_TIMER, 4); 428 latency = (latency >> 8) & 0xff; 429 if ( bootverbose ) { 430 if (latency) 431 printf("brooktree%d: PCI bus latency is", unit); 432 else 433 printf("brooktree%d: PCI bus latency was 0 changing to", 434 unit); 435 } 436 if ( !latency ) { 437 latency = BROOKTREE_DEF_LATENCY_VALUE; 438 pci_write_config(dev, PCI_LATENCY_TIMER, latency<<8, 4); 439 } 440 if ( bootverbose ) { 441 printf(" %d.\n", (int) latency); 442 } 443 444 /* read the pci device id and revision id */ 445 fun = pci_get_devid(dev); 446 rev = pci_get_revid(dev); 447 448 /* call the common attach code */ 449 common_bktr_attach( bktr, unit, fun, rev ); 450 451 /* make the device entries */ 452 bktr->bktrdev = make_dev(&bktr_cdevsw, unit, 453 0, 0, 0444, "bktr%d", unit); 454 bktr->tunerdev= make_dev(&bktr_cdevsw, unit+16, 455 0, 0, 0444, "tuner%d", unit); 456 bktr->vbidev = make_dev(&bktr_cdevsw, unit+32, 457 0, 0, 0444, "vbi%d" , unit); 458 459 460 /* if this is unit 0 (/dev/bktr0, /dev/tuner0, /dev/vbi0) then make */ 461 /* alias entries to /dev/bktr /dev/tuner and /dev/vbi */ 462#if (__FreeBSD_version >=500000) 463 if (unit == 0) { 464 bktr->bktrdev_alias = make_dev_alias(bktr->bktrdev, "bktr"); 465 bktr->tunerdev_alias= make_dev_alias(bktr->tunerdev, "tuner"); 466 bktr->vbidev_alias = make_dev_alias(bktr->vbidev, "vbi"); 467 } 468#endif 469 470 return 0; 471 472fail: 473 if (bktr->res_irq) 474 bus_release_resource(dev, SYS_RES_IRQ, bktr->irq_rid, bktr->res_irq); 475 if (bktr->res_mem) 476 bus_release_resource(dev, SYS_RES_IRQ, bktr->mem_rid, bktr->res_mem); 477 return error; 478 479} 480 481/* 482 * the detach routine. 483 */ 484static int 485bktr_detach( device_t dev ) 486{ 487 struct bktr_softc *bktr = device_get_softc(dev); 488 489#ifdef BKTR_NEW_MSP34XX_DRIVER 490 /* Disable the soundchip and kernel thread */ 491 if (bktr->msp3400c_info != NULL) 492 msp_detach(bktr); 493#endif 494 495 /* Disable the brooktree device */ 496 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED); 497 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED); 498 499#if defined(BKTR_USE_FREEBSD_SMBUS) 500 if (bt848_i2c_detach(dev)) 501 printf("bktr%d: i2c_attach: can't attach\n", 502 device_get_unit(dev)); 503#endif 504 505 /* Note: We do not free memory for RISC programs, grab buffer, vbi buffers */ 506 /* The memory is retained by the bktr_mem module so we can unload and */ 507 /* then reload the main bktr driver module */ 508 509 /* Unregister the /dev/bktrN, tunerN and vbiN devices, 510 * the aliases for unit 0 are automatically destroyed */ 511 destroy_dev(bktr->vbidev); 512 destroy_dev(bktr->tunerdev); 513 destroy_dev(bktr->bktrdev); 514 515 /* 516 * Deallocate resources. 517 */ 518 bus_teardown_intr(dev, bktr->res_irq, bktr->res_ih); 519 bus_release_resource(dev, SYS_RES_IRQ, bktr->irq_rid, bktr->res_irq); 520 bus_release_resource(dev, SYS_RES_MEMORY, bktr->mem_rid, bktr->res_mem); 521 522 return 0; 523} 524 525/* 526 * the shutdown routine. 527 */ 528static int 529bktr_shutdown( device_t dev ) 530{ 531 struct bktr_softc *bktr = device_get_softc(dev); 532 533 /* Disable the brooktree device */ 534 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED); 535 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED); 536 537 return 0; 538} 539 540 541/* 542 * Special Memory Allocation 543 */ 544vm_offset_t 545get_bktr_mem( int unit, unsigned size ) 546{ 547 vm_offset_t addr = 0; 548 549 addr = vm_page_alloc_contig(size, 0, 0xffffffff, 1<<24); 550 if (addr == 0) 551 addr = vm_page_alloc_contig(size, 0, 0xffffffff, PAGE_SIZE); 552 if (addr == 0) { 553 printf("bktr%d: Unable to allocate %d bytes of memory.\n", 554 unit, size); 555 } 556 557 return( addr ); 558} 559 560 561/*--------------------------------------------------------- 562** 563** BrookTree 848 character device driver routines 564** 565**--------------------------------------------------------- 566*/ 567 568#define VIDEO_DEV 0x00 569#define TUNER_DEV 0x01 570#define VBI_DEV 0x02 571 572#define UNIT(x) ((x) & 0x0f) 573#define FUNCTION(x) (x >> 4) 574 575/* 576 * 577 */ 578static int 579bktr_open( dev_t dev, int flags, int fmt, struct thread *td ) 580{ 581 bktr_ptr_t bktr; 582 int unit; 583 int result; 584 585 unit = UNIT( minor(dev) ); 586 587 /* Get the device data */ 588 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 589 if (bktr == NULL) { 590 /* the device is no longer valid/functioning */ 591 return (ENXIO); 592 } 593 594 if (!(bktr->flags & METEOR_INITALIZED)) /* device not found */ 595 return( ENXIO ); 596 597 /* Record that the device is now busy */ 598 device_busy(devclass_get_device(bktr_devclass, unit)); 599 600 601 if (bt848_card != -1) { 602 if ((bt848_card >> 8 == unit ) && 603 ( (bt848_card & 0xff) < Bt848_MAX_CARD )) { 604 if ( bktr->bt848_card != (bt848_card & 0xff) ) { 605 bktr->bt848_card = (bt848_card & 0xff); 606 probeCard(bktr, FALSE, unit); 607 } 608 } 609 } 610 611 if (bt848_tuner != -1) { 612 if ((bt848_tuner >> 8 == unit ) && 613 ( (bt848_tuner & 0xff) < Bt848_MAX_TUNER )) { 614 if ( bktr->bt848_tuner != (bt848_tuner & 0xff) ) { 615 bktr->bt848_tuner = (bt848_tuner & 0xff); 616 probeCard(bktr, FALSE, unit); 617 } 618 } 619 } 620 621 if (bt848_reverse_mute != -1) { 622 if ((bt848_reverse_mute >> 8) == unit ) { 623 bktr->reverse_mute = bt848_reverse_mute & 0xff; 624 } 625 } 626 627 if (bt848_slow_msp_audio != -1) { 628 if ((bt848_slow_msp_audio >> 8) == unit ) { 629 bktr->slow_msp_audio = (bt848_slow_msp_audio & 0xff); 630 } 631 } 632 633#ifdef BKTR_NEW_MSP34XX_DRIVER 634 if (bt848_stereo_once != 0) { 635 if ((bt848_stereo_once >> 8) == unit ) { 636 bktr->stereo_once = (bt848_stereo_once & 0xff); 637 } 638 } 639 640 if (bt848_amsound != -1) { 641 if ((bt848_amsound >> 8) == unit ) { 642 bktr->amsound = (bt848_amsound & 0xff); 643 } 644 } 645 646 if (bt848_dolby != -1) { 647 if ((bt848_dolby >> 8) == unit ) { 648 bktr->dolby = (bt848_dolby & 0xff); 649 } 650 } 651#endif 652 653 switch ( FUNCTION( minor(dev) ) ) { 654 case VIDEO_DEV: 655 result = video_open( bktr ); 656 break; 657 case TUNER_DEV: 658 result = tuner_open( bktr ); 659 break; 660 case VBI_DEV: 661 result = vbi_open( bktr ); 662 break; 663 default: 664 result = ENXIO; 665 break; 666 } 667 668 /* If there was an error opening the device, undo the busy status */ 669 if (result != 0) 670 device_unbusy(devclass_get_device(bktr_devclass, unit)); 671 return( result ); 672} 673 674 675/* 676 * 677 */ 678static int 679bktr_close( dev_t dev, int flags, int fmt, struct thread *td ) 680{ 681 bktr_ptr_t bktr; 682 int unit; 683 int result; 684 685 unit = UNIT( minor(dev) ); 686 687 /* Get the device data */ 688 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 689 if (bktr == NULL) { 690 /* the device is no longer valid/functioning */ 691 return (ENXIO); 692 } 693 694 switch ( FUNCTION( minor(dev) ) ) { 695 case VIDEO_DEV: 696 result = video_close( bktr ); 697 break; 698 case TUNER_DEV: 699 result = tuner_close( bktr ); 700 break; 701 case VBI_DEV: 702 result = vbi_close( bktr ); 703 break; 704 default: 705 return (ENXIO); 706 break; 707 } 708 709 device_unbusy(devclass_get_device(bktr_devclass, unit)); 710 return( result ); 711} 712 713 714/* 715 * 716 */ 717static int 718bktr_read( dev_t dev, struct uio *uio, int ioflag ) 719{ 720 bktr_ptr_t bktr; 721 int unit; 722 723 unit = UNIT(minor(dev)); 724 725 /* Get the device data */ 726 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 727 if (bktr == NULL) { 728 /* the device is no longer valid/functioning */ 729 return (ENXIO); 730 } 731 732 switch ( FUNCTION( minor(dev) ) ) { 733 case VIDEO_DEV: 734 return( video_read( bktr, unit, dev, uio ) ); 735 case VBI_DEV: 736 return( vbi_read( bktr, uio, ioflag ) ); 737 } 738 return( ENXIO ); 739} 740 741 742/* 743 * 744 */ 745static int 746bktr_write( dev_t dev, struct uio *uio, int ioflag ) 747{ 748 return( EINVAL ); /* XXX or ENXIO ? */ 749} 750 751 752/* 753 * 754 */ 755static int 756bktr_ioctl( dev_t dev, ioctl_cmd_t cmd, caddr_t arg, int flag, struct thread *td ) 757{ 758 bktr_ptr_t bktr; 759 int unit; 760 761 unit = UNIT(minor(dev)); 762 763 /* Get the device data */ 764 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 765 if (bktr == NULL) { 766 /* the device is no longer valid/functioning */ 767 return (ENXIO); 768 } 769 770 if (bktr->bigbuf == 0) /* no frame buffer allocated (ioctl failed) */ 771 return( ENOMEM ); 772 773 switch ( FUNCTION( minor(dev) ) ) { 774 case VIDEO_DEV: 775 return( video_ioctl( bktr, unit, cmd, arg, td ) ); 776 case TUNER_DEV: 777 return( tuner_ioctl( bktr, unit, cmd, arg, td ) ); 778 } 779 780 return( ENXIO ); 781} 782 783 784/* 785 * 786 */ 787static int 788bktr_mmap( dev_t dev, vm_offset_t offset, vm_paddr_t *paddr, int nprot ) 789{ 790 int unit; 791 bktr_ptr_t bktr; 792 793 unit = UNIT(minor(dev)); 794 795 if (FUNCTION(minor(dev)) > 0) /* only allow mmap on /dev/bktr[n] */ 796 return( -1 ); 797 798 /* Get the device data */ 799 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 800 if (bktr == NULL) { 801 /* the device is no longer valid/functioning */ 802 return (ENXIO); 803 } 804 805 if (nprot & PROT_EXEC) 806 return( -1 ); 807 808 if (offset < 0) 809 return( -1 ); 810 811 if (offset >= bktr->alloc_pages * PAGE_SIZE) 812 return( -1 ); 813 814 *paddr = vtophys(bktr->bigbuf) + offset; 815 return( 0 ); 816} 817 818static int 819bktr_poll( dev_t dev, int events, struct thread *td) 820{ 821 int unit; 822 bktr_ptr_t bktr; 823 int revents = 0; 824 DECLARE_INTR_MASK(s); 825 826 unit = UNIT(minor(dev)); 827 828 /* Get the device data */ 829 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 830 if (bktr == NULL) { 831 /* the device is no longer valid/functioning */ 832 return (ENXIO); 833 } 834 835 DISABLE_INTR(s); 836 837 if (events & (POLLIN | POLLRDNORM)) { 838 839 switch ( FUNCTION( minor(dev) ) ) { 840 case VBI_DEV: 841 if(bktr->vbisize == 0) 842 selrecord(td, &bktr->vbi_select); 843 else 844 revents |= events & (POLLIN | POLLRDNORM); 845 break; 846 } 847 } 848 849 ENABLE_INTR(s); 850 851 return (revents); 852} 853 854#endif /* FreeBSD 4.x specific kernel interface routines */ 855 856/*****************/ 857/* *** BSDI *** */ 858/*****************/ 859 860#if defined(__bsdi__) 861#endif /* __bsdi__ BSDI specific kernel interface routines */ 862 863 864/*****************************/ 865/* *** OpenBSD / NetBSD *** */ 866/*****************************/ 867#if defined(__NetBSD__) || defined(__OpenBSD__) 868 869#define IPL_VIDEO IPL_BIO /* XXX */ 870 871static int bktr_intr(void *arg) { return common_bktr_intr(arg); } 872 873#define bktr_open bktropen 874#define bktr_close bktrclose 875#define bktr_read bktrread 876#define bktr_write bktrwrite 877#define bktr_ioctl bktrioctl 878#define bktr_mmap bktrmmap 879 880vm_offset_t vm_page_alloc_contig(vm_offset_t, vm_offset_t, 881 vm_offset_t, vm_offset_t); 882 883#if defined(__OpenBSD__) 884static int bktr_probe(struct device *, void *, void *); 885#else 886static int bktr_probe(struct device *, struct cfdata *, void *); 887#endif 888static void bktr_attach(struct device *, struct device *, void *); 889 890struct cfattach bktr_ca = { 891 sizeof(struct bktr_softc), bktr_probe, bktr_attach 892}; 893 894#if defined(__NetBSD__) 895extern struct cfdriver bktr_cd; 896#else 897struct cfdriver bktr_cd = { 898 NULL, "bktr", DV_DULL 899}; 900#endif 901 902int 903bktr_probe(parent, match, aux) 904 struct device *parent; 905#if defined(__OpenBSD__) 906 void *match; 907#else 908 struct cfdata *match; 909#endif 910 void *aux; 911{ 912 struct pci_attach_args *pa = aux; 913 914 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_BROOKTREE && 915 (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT848 || 916 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT849 || 917 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT878 || 918 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT879)) 919 return 1; 920 921 return 0; 922} 923 924 925/* 926 * the attach routine. 927 */ 928static void 929bktr_attach(struct device *parent, struct device *self, void *aux) 930{ 931 bktr_ptr_t bktr; 932 u_long latency; 933 u_long fun; 934 unsigned int rev; 935 936#if defined(__OpenBSD__) 937 struct pci_attach_args *pa = aux; 938 pci_chipset_tag_t pc = pa->pa_pc; 939 940 pci_intr_handle_t ih; 941 const char *intrstr; 942 int retval; 943 int unit; 944 945 bktr = (bktr_ptr_t)self; 946 unit = bktr->bktr_dev.dv_unit; 947 948 bktr->pc = pa->pa_pc; 949 bktr->tag = pa->pa_tag; 950 bktr->dmat = pa->pa_dmat; 951 952 /* 953 * map memory 954 */ 955 bktr->memt = pa->pa_memt; 956 retval = pci_mem_find(pc, pa->pa_tag, PCI_MAPREG_START, 957 &bktr->phys_base, &bktr->obmemsz, NULL); 958 if (!retval) 959 retval = bus_space_map(pa->pa_memt, bktr->phys_base, 960 bktr->obmemsz, 0, &bktr->memh); 961 if (retval) { 962 printf(": couldn't map memory\n"); 963 return; 964 } 965 966 967 /* 968 * map interrupt 969 */ 970 if (pci_intr_map(pa->pa_pc, pa->pa_intrtag, pa->pa_intrpin, 971 pa->pa_intrline, &ih)) { 972 printf(": couldn't map interrupt\n"); 973 return; 974 } 975 intrstr = pci_intr_string(pa->pa_pc, ih); 976 977 bktr->ih = pci_intr_establish(pa->pa_pc, ih, IPL_VIDEO, 978 bktr_intr, bktr, bktr->bktr_dev.dv_xname); 979 if (bktr->ih == NULL) { 980 printf(": couldn't establish interrupt"); 981 if (intrstr != NULL) 982 printf(" at %s", intrstr); 983 printf("\n"); 984 return; 985 } 986 987 if (intrstr != NULL) 988 printf(": %s\n", intrstr); 989#endif /* __OpenBSD__ */ 990 991#if defined(__NetBSD__) 992 struct pci_attach_args *pa = aux; 993 pci_intr_handle_t ih; 994 const char *intrstr; 995 int retval; 996 int unit; 997 998 bktr = (bktr_ptr_t)self; 999 unit = bktr->bktr_dev.dv_unit; 1000 bktr->dmat = pa->pa_dmat; 1001 1002 printf("\n"); 1003 1004 /* 1005 * map memory 1006 */ 1007 retval = pci_mapreg_map(pa, PCI_MAPREG_START, 1008 PCI_MAPREG_TYPE_MEM 1009 | PCI_MAPREG_MEM_TYPE_32BIT, 0, 1010 &bktr->memt, &bktr->memh, NULL, 1011 &bktr->obmemsz); 1012 DPR(("pci_mapreg_map: memt %x, memh %x, size %x\n", 1013 bktr->memt, (u_int)bktr->memh, (u_int)bktr->obmemsz)); 1014 if (retval) { 1015 printf("%s: couldn't map memory\n", bktr_name(bktr)); 1016 return; 1017 } 1018 1019 /* 1020 * Disable the brooktree device 1021 */ 1022 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED); 1023 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED); 1024 1025 /* 1026 * map interrupt 1027 */ 1028 if (pci_intr_map(pa->pa_pc, pa->pa_intrtag, pa->pa_intrpin, 1029 pa->pa_intrline, &ih)) { 1030 printf("%s: couldn't map interrupt\n", 1031 bktr_name(bktr)); 1032 return; 1033 } 1034 intrstr = pci_intr_string(pa->pa_pc, ih); 1035 bktr->ih = pci_intr_establish(pa->pa_pc, ih, IPL_VIDEO, 1036 bktr_intr, bktr); 1037 if (bktr->ih == NULL) { 1038 printf("%s: couldn't establish interrupt", 1039 bktr_name(bktr)); 1040 if (intrstr != NULL) 1041 printf(" at %s", intrstr); 1042 printf("\n"); 1043 return; 1044 } 1045 if (intrstr != NULL) 1046 printf("%s: interrupting at %s\n", bktr_name(bktr), 1047 intrstr); 1048#endif /* __NetBSD__ */ 1049 1050/* 1051 * PCI latency timer. 32 is a good value for 4 bus mastering slots, if 1052 * you have more than four, then 16 would probably be a better value. 1053 */ 1054#ifndef BROOKTREE_DEF_LATENCY_VALUE 1055#define BROOKTREE_DEF_LATENCY_VALUE 10 1056#endif 1057 latency = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_LATENCY_TIMER); 1058 latency = (latency >> 8) & 0xff; 1059 1060 if (!latency) { 1061 if (bootverbose) { 1062 printf("%s: PCI bus latency was 0 changing to %d", 1063 bktr_name(bktr), BROOKTREE_DEF_LATENCY_VALUE); 1064 } 1065 latency = BROOKTREE_DEF_LATENCY_VALUE; 1066 pci_conf_write(pa->pa_pc, pa->pa_tag, 1067 PCI_LATENCY_TIMER, latency<<8); 1068 } 1069 1070 1071 /* Enabled Bus Master 1072 XXX: check if all old DMA is stopped first (e.g. after warm 1073 boot) */ 1074 fun = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); 1075 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, 1076 fun | PCI_COMMAND_MASTER_ENABLE); 1077 1078 /* read the pci id and determine the card type */ 1079 fun = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_ID_REG); 1080 rev = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_CLASS_REG) & 0x000000ff; 1081 1082 common_bktr_attach(bktr, unit, fun, rev); 1083} 1084 1085 1086/* 1087 * Special Memory Allocation 1088 */ 1089vm_offset_t 1090get_bktr_mem(bktr, dmapp, size) 1091 bktr_ptr_t bktr; 1092 bus_dmamap_t *dmapp; 1093 unsigned int size; 1094{ 1095 bus_dma_tag_t dmat = bktr->dmat; 1096 bus_dma_segment_t seg; 1097 bus_size_t align; 1098 int rseg; 1099 caddr_t kva; 1100 1101 /* 1102 * Allocate a DMA area 1103 */ 1104 align = 1 << 24; 1105 if (bus_dmamem_alloc(dmat, size, align, 0, &seg, 1, 1106 &rseg, BUS_DMA_NOWAIT)) { 1107 align = PAGE_SIZE; 1108 if (bus_dmamem_alloc(dmat, size, align, 0, &seg, 1, 1109 &rseg, BUS_DMA_NOWAIT)) { 1110 printf("%s: Unable to dmamem_alloc of %d bytes\n", 1111 bktr_name(bktr), size); 1112 return 0; 1113 } 1114 } 1115 if (bus_dmamem_map(dmat, &seg, rseg, size, 1116 &kva, BUS_DMA_NOWAIT|BUS_DMA_COHERENT)) { 1117 printf("%s: Unable to dmamem_map of %d bytes\n", 1118 bktr_name(bktr), size); 1119 bus_dmamem_free(dmat, &seg, rseg); 1120 return 0; 1121 } 1122#ifdef __OpenBSD__ 1123 bktr->dm_mapsize = size; 1124#endif 1125 /* 1126 * Create and locd the DMA map for the DMA area 1127 */ 1128 if (bus_dmamap_create(dmat, size, 1, size, 0, BUS_DMA_NOWAIT, dmapp)) { 1129 printf("%s: Unable to dmamap_create of %d bytes\n", 1130 bktr_name(bktr), size); 1131 bus_dmamem_unmap(dmat, kva, size); 1132 bus_dmamem_free(dmat, &seg, rseg); 1133 return 0; 1134 } 1135 if (bus_dmamap_load(dmat, *dmapp, kva, size, NULL, BUS_DMA_NOWAIT)) { 1136 printf("%s: Unable to dmamap_load of %d bytes\n", 1137 bktr_name(bktr), size); 1138 bus_dmamem_unmap(dmat, kva, size); 1139 bus_dmamem_free(dmat, &seg, rseg); 1140 bus_dmamap_destroy(dmat, *dmapp); 1141 return 0; 1142 } 1143 return (vm_offset_t)kva; 1144} 1145 1146void 1147free_bktr_mem(bktr, dmap, kva) 1148 bktr_ptr_t bktr; 1149 bus_dmamap_t dmap; 1150 vm_offset_t kva; 1151{ 1152 bus_dma_tag_t dmat = bktr->dmat; 1153 1154#ifdef __NetBSD__ 1155 bus_dmamem_unmap(dmat, (caddr_t)kva, dmap->dm_mapsize); 1156#else 1157 bus_dmamem_unmap(dmat, (caddr_t)kva, bktr->dm_mapsize); 1158#endif 1159 bus_dmamem_free(dmat, dmap->dm_segs, 1); 1160 bus_dmamap_destroy(dmat, dmap); 1161} 1162 1163 1164/*--------------------------------------------------------- 1165** 1166** BrookTree 848 character device driver routines 1167** 1168**--------------------------------------------------------- 1169*/ 1170 1171 1172#define VIDEO_DEV 0x00 1173#define TUNER_DEV 0x01 1174#define VBI_DEV 0x02 1175 1176#define UNIT(x) (minor((x) & 0x0f)) 1177#define FUNCTION(x) (minor((x >> 4) & 0x0f)) 1178 1179/* 1180 * 1181 */ 1182int 1183bktr_open(dev_t dev, int flags, int fmt, struct thread *td) 1184{ 1185 bktr_ptr_t bktr; 1186 int unit; 1187 1188 unit = UNIT(dev); 1189 1190 /* unit out of range */ 1191 if ((unit > bktr_cd.cd_ndevs) || (bktr_cd.cd_devs[unit] == NULL)) 1192 return(ENXIO); 1193 1194 bktr = bktr_cd.cd_devs[unit]; 1195 1196 if (!(bktr->flags & METEOR_INITALIZED)) /* device not found */ 1197 return(ENXIO); 1198 1199 switch (FUNCTION(dev)) { 1200 case VIDEO_DEV: 1201 return(video_open(bktr)); 1202 case TUNER_DEV: 1203 return(tuner_open(bktr)); 1204 case VBI_DEV: 1205 return(vbi_open(bktr)); 1206 } 1207 1208 return(ENXIO); 1209} 1210 1211 1212/* 1213 * 1214 */ 1215int 1216bktr_close(dev_t dev, int flags, int fmt, struct thread *td) 1217{ 1218 bktr_ptr_t bktr; 1219 int unit; 1220 1221 unit = UNIT(dev); 1222 1223 bktr = bktr_cd.cd_devs[unit]; 1224 1225 switch (FUNCTION(dev)) { 1226 case VIDEO_DEV: 1227 return(video_close(bktr)); 1228 case TUNER_DEV: 1229 return(tuner_close(bktr)); 1230 case VBI_DEV: 1231 return(vbi_close(bktr)); 1232 } 1233 1234 return(ENXIO); 1235} 1236 1237/* 1238 * 1239 */ 1240int 1241bktr_read(dev_t dev, struct uio *uio, int ioflag) 1242{ 1243 bktr_ptr_t bktr; 1244 int unit; 1245 1246 unit = UNIT(dev); 1247 1248 bktr = bktr_cd.cd_devs[unit]; 1249 1250 switch (FUNCTION(dev)) { 1251 case VIDEO_DEV: 1252 return(video_read(bktr, unit, dev, uio)); 1253 case VBI_DEV: 1254 return(vbi_read(bktr, uio, ioflag)); 1255 } 1256 1257 return(ENXIO); 1258} 1259 1260 1261/* 1262 * 1263 */ 1264int 1265bktr_write(dev_t dev, struct uio *uio, int ioflag) 1266{ 1267 /* operation not supported */ 1268 return(EOPNOTSUPP); 1269} 1270 1271/* 1272 * 1273 */ 1274int 1275bktr_ioctl(dev_t dev, ioctl_cmd_t cmd, caddr_t arg, int flag, struct thread *td) 1276{ 1277 bktr_ptr_t bktr; 1278 int unit; 1279 1280 unit = UNIT(dev); 1281 1282 bktr = bktr_cd.cd_devs[unit]; 1283 1284 if (bktr->bigbuf == 0) /* no frame buffer allocated (ioctl failed) */ 1285 return(ENOMEM); 1286 1287 switch (FUNCTION(dev)) { 1288 case VIDEO_DEV: 1289 return(video_ioctl(bktr, unit, cmd, arg, pr)); 1290 case TUNER_DEV: 1291 return(tuner_ioctl(bktr, unit, cmd, arg, pr)); 1292 } 1293 1294 return(ENXIO); 1295} 1296 1297/* 1298 * 1299 */ 1300paddr_t 1301bktr_mmap(dev_t dev, off_t offset, int nprot) 1302{ 1303 int unit; 1304 bktr_ptr_t bktr; 1305 1306 unit = UNIT(dev); 1307 1308 if (FUNCTION(dev) > 0) /* only allow mmap on /dev/bktr[n] */ 1309 return(-1); 1310 1311 bktr = bktr_cd.cd_devs[unit]; 1312 1313 if ((vaddr_t)offset < 0) 1314 return(-1); 1315 1316 if ((vaddr_t)offset >= bktr->alloc_pages * PAGE_SIZE) 1317 return(-1); 1318 1319#ifdef __NetBSD__ 1320 return (bus_dmamem_mmap(bktr->dmat, bktr->dm_mem->dm_segs, 1, 1321 (vaddr_t)offset, nprot, BUS_DMA_WAITOK)); 1322#else 1323 return(i386_btop(vtophys(bktr->bigbuf) + offset)); 1324#endif 1325} 1326 1327#endif /* __NetBSD__ || __OpenBSD__ */ 1328