bktr_os.c revision 123088
1/*- 2 * 1. Redistributions of source code must retain the 3 * Copyright (c) 1997 Amancio Hasty, 1999 Roger Hardiman 4 * All rights reserved. 5 * 6 * Redistribution and use in source and binary forms, with or without 7 * modification, are permitted provided that the following conditions 8 * are met: 9 * 1. Redistributions of source code must retain the above copyright 10 * notice, this list of conditions and the following disclaimer. 11 * 2. Redistributions in binary form must reproduce the above copyright 12 * notice, this list of conditions and the following disclaimer in the 13 * documentation and/or other materials provided with the distribution. 14 * 3. All advertising materials mentioning features or use of this software 15 * must display the following acknowledgement: 16 * This product includes software developed by Amancio Hasty and 17 * Roger Hardiman 18 * 4. The name of the author may not be used to endorse or promote products 19 * derived from this software without specific prior written permission. 20 * 21 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 22 * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 23 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 24 * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 25 * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 26 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 27 * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 28 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 29 * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 30 * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 31 * POSSIBILITY OF SUCH DAMAGE. 32 */ 33 34#include <sys/cdefs.h> 35__FBSDID("$FreeBSD: head/sys/dev/bktr/bktr_os.c 123088 2003-12-01 19:03:50Z truckman $"); 36 37/* 38 * This is part of the Driver for Video Capture Cards (Frame grabbers) 39 * and TV Tuner cards using the Brooktree Bt848, Bt848A, Bt849A, Bt878, Bt879 40 * chipset. 41 * Copyright Roger Hardiman and Amancio Hasty. 42 * 43 * bktr_os : This has all the Operating System dependant code, 44 * probe/attach and open/close/ioctl/read/mmap 45 * memory allocation 46 * PCI bus interfacing 47 */ 48 49#include "opt_bktr.h" /* include any kernel config options */ 50 51#define FIFO_RISC_DISABLED 0 52#define ALL_INTS_DISABLED 0 53 54 55/*******************/ 56/* *** FreeBSD *** */ 57/*******************/ 58#ifdef __FreeBSD__ 59 60#include <sys/param.h> 61#include <sys/systm.h> 62#include <sys/conf.h> 63#include <sys/uio.h> 64#include <sys/kernel.h> 65#include <sys/signalvar.h> 66#include <sys/mman.h> 67#include <sys/poll.h> 68#if __FreeBSD_version >= 500014 69#include <sys/selinfo.h> 70#else 71#include <sys/select.h> 72#endif 73#include <sys/vnode.h> 74 75#include <vm/vm.h> 76#include <vm/vm_kern.h> 77#include <vm/pmap.h> 78#include <vm/vm_extern.h> 79 80#if (__FreeBSD_version >=400000) 81#include <sys/bus.h> /* used by smbus and newbus */ 82#endif 83 84#if (__FreeBSD_version >=300000) 85#include <machine/bus_memio.h> /* used by bus space */ 86#include <machine/bus.h> /* used by bus space and newbus */ 87#include <sys/bus.h> 88#endif 89 90#if (__FreeBSD_version >=400000) 91#include <sys/rman.h> /* used by newbus */ 92#include <machine/resource.h> /* used by newbus */ 93#endif 94 95#if (__FreeBSD_version < 500000) 96#include <machine/clock.h> /* for DELAY */ 97#include <pci/pcivar.h> 98#include <pci/pcireg.h> 99#else 100#include <dev/pci/pcivar.h> 101#include <dev/pci/pcireg.h> 102#endif 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#ifdef BKTR_NEW_MSP34XX_DRIVER 111int bt848_stereo_once = 0; /* no continuous stereo monitoring */ 112int bt848_amsound = 0; /* hard-wire AM sound at 6.5 Hz (france), 113 the autoscan seems work well only with FM... */ 114int bt848_dolby = 0; 115#endif 116 117SYSCTL_NODE(_hw, OID_AUTO, bt848, CTLFLAG_RW, 0, "Bt848 Driver mgmt"); 118SYSCTL_INT(_hw_bt848, OID_AUTO, card, CTLFLAG_RW, &bt848_card, -1, ""); 119SYSCTL_INT(_hw_bt848, OID_AUTO, tuner, CTLFLAG_RW, &bt848_tuner, -1, ""); 120SYSCTL_INT(_hw_bt848, OID_AUTO, reverse_mute, CTLFLAG_RW, &bt848_reverse_mute, -1, ""); 121SYSCTL_INT(_hw_bt848, OID_AUTO, format, CTLFLAG_RW, &bt848_format, -1, ""); 122SYSCTL_INT(_hw_bt848, OID_AUTO, slow_msp_audio, CTLFLAG_RW, &bt848_slow_msp_audio, -1, ""); 123#ifdef BKTR_NEW_MSP34XX_DRIVER 124SYSCTL_INT(_hw_bt848, OID_AUTO, stereo_once, CTLFLAG_RW, &bt848_stereo_once, 0, ""); 125SYSCTL_INT(_hw_bt848, OID_AUTO, amsound, CTLFLAG_RW, &bt848_amsound, 0, ""); 126SYSCTL_INT(_hw_bt848, OID_AUTO, dolby, CTLFLAG_RW, &bt848_dolby, 0, ""); 127#endif 128 129#endif /* end freebsd section */ 130 131 132 133/****************/ 134/* *** BSDI *** */ 135/****************/ 136#ifdef __bsdi__ 137#endif /* __bsdi__ */ 138 139 140/**************************/ 141/* *** OpenBSD/NetBSD *** */ 142/**************************/ 143#if defined(__NetBSD__) || defined(__OpenBSD__) 144 145#include <sys/param.h> 146#include <sys/systm.h> 147#include <sys/conf.h> 148#include <sys/uio.h> 149#include <sys/kernel.h> 150#include <sys/signalvar.h> 151#include <sys/mman.h> 152#include <sys/poll.h> 153#include <sys/select.h> 154#include <sys/vnode.h> 155 156#include <vm/vm.h> 157 158#ifndef __NetBSD__ 159#include <vm/vm_kern.h> 160#include <vm/pmap.h> 161#include <vm/vm_extern.h> 162#endif 163 164#include <sys/device.h> 165#include <dev/pci/pcivar.h> 166#include <dev/pci/pcireg.h> 167#include <dev/pci/pcidevs.h> 168 169#define BKTR_DEBUG 170#ifdef BKTR_DEBUG 171int bktr_debug = 0; 172#define DPR(x) (bktr_debug ? printf x : 0) 173#else 174#define DPR(x) 175#endif 176#endif /* __NetBSD__ || __OpenBSD__ */ 177 178 179#ifdef __NetBSD__ 180#include <dev/ic/bt8xx.h> /* NetBSD location for .h files */ 181#include <dev/pci/bktr/bktr_reg.h> 182#include <dev/pci/bktr/bktr_tuner.h> 183#include <dev/pci/bktr/bktr_card.h> 184#include <dev/pci/bktr/bktr_audio.h> 185#include <dev/pci/bktr/bktr_core.h> 186#include <dev/pci/bktr/bktr_os.h> 187#else /* Traditional location for .h files */ 188#include <machine/ioctl_meteor.h> 189#include <machine/ioctl_bt848.h> /* extensions to ioctl_meteor.h */ 190#include <dev/bktr/bktr_reg.h> 191#include <dev/bktr/bktr_tuner.h> 192#include <dev/bktr/bktr_card.h> 193#include <dev/bktr/bktr_audio.h> 194#include <dev/bktr/bktr_core.h> 195#include <dev/bktr/bktr_os.h> 196 197#if defined(BKTR_USE_FREEBSD_SMBUS) 198#include <dev/bktr/bktr_i2c.h> 199 200#include "iicbb_if.h" 201#include "smbus_if.h" 202#endif 203#endif 204 205 206/****************************/ 207/* *** FreeBSD 4.x code *** */ 208/****************************/ 209#if (__FreeBSD_version >= 400000) 210 211static int bktr_probe( device_t dev ); 212static int bktr_attach( device_t dev ); 213static int bktr_detach( device_t dev ); 214static int bktr_shutdown( device_t dev ); 215static void bktr_intr(void *arg) { common_bktr_intr(arg); } 216 217static device_method_t bktr_methods[] = { 218 /* Device interface */ 219 DEVMETHOD(device_probe, bktr_probe), 220 DEVMETHOD(device_attach, bktr_attach), 221 DEVMETHOD(device_detach, bktr_detach), 222 DEVMETHOD(device_shutdown, bktr_shutdown), 223 224#if defined(BKTR_USE_FREEBSD_SMBUS) 225 /* iicbb interface */ 226 DEVMETHOD(iicbb_callback, bti2c_iic_callback), 227 DEVMETHOD(iicbb_setsda, bti2c_iic_setsda), 228 DEVMETHOD(iicbb_setscl, bti2c_iic_setscl), 229 DEVMETHOD(iicbb_getsda, bti2c_iic_getsda), 230 DEVMETHOD(iicbb_getscl, bti2c_iic_getscl), 231 DEVMETHOD(iicbb_reset, bti2c_iic_reset), 232 233 /* smbus interface */ 234 DEVMETHOD(smbus_callback, bti2c_smb_callback), 235 DEVMETHOD(smbus_writeb, bti2c_smb_writeb), 236 DEVMETHOD(smbus_writew, bti2c_smb_writew), 237 DEVMETHOD(smbus_readb, bti2c_smb_readb), 238#endif 239 240 { 0, 0 } 241}; 242 243static driver_t bktr_driver = { 244 "bktr", 245 bktr_methods, 246 sizeof(struct bktr_softc), 247}; 248 249static devclass_t bktr_devclass; 250 251static d_open_t bktr_open; 252static d_close_t bktr_close; 253static d_read_t bktr_read; 254static d_write_t bktr_write; 255static d_ioctl_t bktr_ioctl; 256static d_mmap_t bktr_mmap; 257static d_poll_t bktr_poll; 258 259#define CDEV_MAJOR 92 260static struct cdevsw bktr_cdevsw = { 261 .d_open = bktr_open, 262 .d_close = bktr_close, 263 .d_read = bktr_read, 264 .d_write = bktr_write, 265 .d_ioctl = bktr_ioctl, 266 .d_poll = bktr_poll, 267 .d_mmap = bktr_mmap, 268 .d_name = "bktr", 269 .d_maj = CDEV_MAJOR, 270}; 271 272DRIVER_MODULE(bktr, pci, bktr_driver, bktr_devclass, 0, 0); 273#if (__FreeBSD_version > 410000) 274MODULE_DEPEND(bktr, bktr_mem, 1,1,1); 275MODULE_VERSION(bktr, 1); 276#endif 277 278 279/* 280 * the boot time probe routine. 281 */ 282static int 283bktr_probe( device_t dev ) 284{ 285 unsigned int type = pci_get_devid(dev); 286 unsigned int rev = pci_get_revid(dev); 287 288 if (PCI_VENDOR(type) == PCI_VENDOR_BROOKTREE) 289 { 290 switch (PCI_PRODUCT(type)) { 291 case PCI_PRODUCT_BROOKTREE_BT848: 292 if (rev == 0x12) 293 device_set_desc(dev, "BrookTree 848A"); 294 else 295 device_set_desc(dev, "BrookTree 848"); 296 return 0; 297 case PCI_PRODUCT_BROOKTREE_BT849: 298 device_set_desc(dev, "BrookTree 849A"); 299 return 0; 300 case PCI_PRODUCT_BROOKTREE_BT878: 301 device_set_desc(dev, "BrookTree 878"); 302 return 0; 303 case PCI_PRODUCT_BROOKTREE_BT879: 304 device_set_desc(dev, "BrookTree 879"); 305 return 0; 306 } 307 }; 308 309 return ENXIO; 310} 311 312 313/* 314 * the attach routine. 315 */ 316static int 317bktr_attach( device_t dev ) 318{ 319 u_long latency; 320 u_long fun; 321 u_long val; 322 unsigned int rev; 323 unsigned int unit; 324 int error = 0; 325#ifdef BROOKTREE_IRQ 326 u_long old_irq, new_irq; 327#endif 328 329 struct bktr_softc *bktr = device_get_softc(dev); 330 331 unit = device_get_unit(dev); 332 333 /* build the device name for bktr_name() */ 334 snprintf(bktr->bktr_xname, sizeof(bktr->bktr_xname), "bktr%d",unit); 335 336 /* 337 * Enable bus mastering and Memory Mapped device 338 */ 339 val = pci_read_config(dev, PCIR_COMMAND, 4); 340 val |= (PCIM_CMD_MEMEN|PCIM_CMD_BUSMASTEREN); 341 pci_write_config(dev, PCIR_COMMAND, val, 4); 342 343 /* 344 * Map control/status registers. 345 */ 346 bktr->mem_rid = PCIR_BAR(0); 347 bktr->res_mem = bus_alloc_resource(dev, SYS_RES_MEMORY, &bktr->mem_rid, 348 0, ~0, 1, RF_ACTIVE); 349 350 351 if (!bktr->res_mem) { 352 device_printf(dev, "could not map memory\n"); 353 error = ENXIO; 354 goto fail; 355 } 356 bktr->memt = rman_get_bustag(bktr->res_mem); 357 bktr->memh = rman_get_bushandle(bktr->res_mem); 358 359 360 /* 361 * Disable the brooktree device 362 */ 363 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED); 364 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED); 365 366 367#ifdef BROOKTREE_IRQ /* from the configuration file */ 368 old_irq = pci_conf_read(tag, PCI_INTERRUPT_REG); 369 pci_conf_write(tag, PCI_INTERRUPT_REG, BROOKTREE_IRQ); 370 new_irq = pci_conf_read(tag, PCI_INTERRUPT_REG); 371 printf("bktr%d: attach: irq changed from %d to %d\n", 372 unit, (old_irq & 0xff), (new_irq & 0xff)); 373#endif 374 375 /* 376 * Allocate our interrupt. 377 */ 378 bktr->irq_rid = 0; 379 bktr->res_irq = bus_alloc_resource(dev, SYS_RES_IRQ, &bktr->irq_rid, 380 0, ~0, 1, RF_SHAREABLE | RF_ACTIVE); 381 if (bktr->res_irq == NULL) { 382 device_printf(dev, "could not map interrupt\n"); 383 error = ENXIO; 384 goto fail; 385 } 386 387 error = bus_setup_intr(dev, bktr->res_irq, INTR_TYPE_TTY, 388 bktr_intr, bktr, &bktr->res_ih); 389 if (error) { 390 device_printf(dev, "could not setup irq\n"); 391 goto fail; 392 393 } 394 395 396 /* Update the Device Control Register */ 397 /* on Bt878 and Bt879 cards */ 398 fun = pci_read_config( dev, 0x40, 2); 399 fun = fun | 1; /* Enable writes to the sub-system vendor ID */ 400 401#if defined( BKTR_430_FX_MODE ) 402 if (bootverbose) printf("Using 430 FX chipset compatibilty mode\n"); 403 fun = fun | 2; /* Enable Intel 430 FX compatibility mode */ 404#endif 405 406#if defined( BKTR_SIS_VIA_MODE ) 407 if (bootverbose) printf("Using SiS/VIA chipset compatibilty mode\n"); 408 fun = fun | 4; /* Enable SiS/VIA compatibility mode (usefull for 409 OPTi chipset motherboards too */ 410#endif 411 pci_write_config(dev, 0x40, fun, 2); 412 413#if defined(BKTR_USE_FREEBSD_SMBUS) 414 if (bt848_i2c_attach(dev)) 415 printf("bktr%d: i2c_attach: can't attach\n", unit); 416#endif 417 418/* 419 * PCI latency timer. 32 is a good value for 4 bus mastering slots, if 420 * you have more than four, then 16 would probably be a better value. 421 */ 422#ifndef BROOKTREE_DEF_LATENCY_VALUE 423#define BROOKTREE_DEF_LATENCY_VALUE 10 424#endif 425 latency = pci_read_config(dev, PCI_LATENCY_TIMER, 4); 426 latency = (latency >> 8) & 0xff; 427 if ( bootverbose ) { 428 if (latency) 429 printf("brooktree%d: PCI bus latency is", unit); 430 else 431 printf("brooktree%d: PCI bus latency was 0 changing to", 432 unit); 433 } 434 if ( !latency ) { 435 latency = BROOKTREE_DEF_LATENCY_VALUE; 436 pci_write_config(dev, PCI_LATENCY_TIMER, latency<<8, 4); 437 } 438 if ( bootverbose ) { 439 printf(" %d.\n", (int) latency); 440 } 441 442 /* read the pci device id and revision id */ 443 fun = pci_get_devid(dev); 444 rev = pci_get_revid(dev); 445 446 /* call the common attach code */ 447 common_bktr_attach( bktr, unit, fun, rev ); 448 449 /* make the device entries */ 450 bktr->bktrdev = make_dev(&bktr_cdevsw, unit, 451 0, 0, 0444, "bktr%d", unit); 452 bktr->tunerdev= make_dev(&bktr_cdevsw, unit+16, 453 0, 0, 0444, "tuner%d", unit); 454 bktr->vbidev = make_dev(&bktr_cdevsw, unit+32, 455 0, 0, 0444, "vbi%d" , unit); 456 457 458 /* if this is unit 0 (/dev/bktr0, /dev/tuner0, /dev/vbi0) then make */ 459 /* alias entries to /dev/bktr /dev/tuner and /dev/vbi */ 460#if (__FreeBSD_version >=500000) 461 if (unit == 0) { 462 bktr->bktrdev_alias = make_dev_alias(bktr->bktrdev, "bktr"); 463 bktr->tunerdev_alias= make_dev_alias(bktr->tunerdev, "tuner"); 464 bktr->vbidev_alias = make_dev_alias(bktr->vbidev, "vbi"); 465 } 466#endif 467 468 return 0; 469 470fail: 471 if (bktr->res_irq) 472 bus_release_resource(dev, SYS_RES_IRQ, bktr->irq_rid, bktr->res_irq); 473 if (bktr->res_mem) 474 bus_release_resource(dev, SYS_RES_IRQ, bktr->mem_rid, bktr->res_mem); 475 return error; 476 477} 478 479/* 480 * the detach routine. 481 */ 482static int 483bktr_detach( device_t dev ) 484{ 485 struct bktr_softc *bktr = device_get_softc(dev); 486 487#ifdef BKTR_NEW_MSP34XX_DRIVER 488 /* Disable the soundchip and kernel thread */ 489 if (bktr->msp3400c_info != NULL) 490 msp_detach(bktr); 491#endif 492 493 /* Disable the brooktree device */ 494 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED); 495 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED); 496 497#if defined(BKTR_USE_FREEBSD_SMBUS) 498 if (bt848_i2c_detach(dev)) 499 printf("bktr%d: i2c_attach: can't attach\n", 500 device_get_unit(dev)); 501#endif 502#ifdef USE_VBIMUTEX 503 mtx_destroy(&bktr->vbimutex); 504#endif 505 506 /* Note: We do not free memory for RISC programs, grab buffer, vbi buffers */ 507 /* The memory is retained by the bktr_mem module so we can unload and */ 508 /* then reload the main bktr driver module */ 509 510 /* Unregister the /dev/bktrN, tunerN and vbiN devices, 511 * the aliases for unit 0 are automatically destroyed */ 512 destroy_dev(bktr->vbidev); 513 destroy_dev(bktr->tunerdev); 514 destroy_dev(bktr->bktrdev); 515 516 /* 517 * Deallocate resources. 518 */ 519 bus_teardown_intr(dev, bktr->res_irq, bktr->res_ih); 520 bus_release_resource(dev, SYS_RES_IRQ, bktr->irq_rid, bktr->res_irq); 521 bus_release_resource(dev, SYS_RES_MEMORY, bktr->mem_rid, bktr->res_mem); 522 523 return 0; 524} 525 526/* 527 * the shutdown routine. 528 */ 529static int 530bktr_shutdown( device_t dev ) 531{ 532 struct bktr_softc *bktr = device_get_softc(dev); 533 534 /* Disable the brooktree device */ 535 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED); 536 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED); 537 538 return 0; 539} 540 541 542/* 543 * Special Memory Allocation 544 */ 545vm_offset_t 546get_bktr_mem( int unit, unsigned size ) 547{ 548 vm_offset_t addr = 0; 549 550 addr = vm_page_alloc_contig(size, 0, 0xffffffff, 1<<24); 551 if (addr == 0) 552 addr = vm_page_alloc_contig(size, 0, 0xffffffff, PAGE_SIZE); 553 if (addr == 0) { 554 printf("bktr%d: Unable to allocate %d bytes of memory.\n", 555 unit, size); 556 } 557 558 return( addr ); 559} 560 561 562/*--------------------------------------------------------- 563** 564** BrookTree 848 character device driver routines 565** 566**--------------------------------------------------------- 567*/ 568 569#define VIDEO_DEV 0x00 570#define TUNER_DEV 0x01 571#define VBI_DEV 0x02 572 573#define UNIT(x) ((x) & 0x0f) 574#define FUNCTION(x) (x >> 4) 575 576/* 577 * 578 */ 579static int 580bktr_open( dev_t dev, int flags, int fmt, struct thread *td ) 581{ 582 bktr_ptr_t bktr; 583 int unit; 584 int result; 585 586 unit = UNIT( minor(dev) ); 587 588 /* Get the device data */ 589 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 590 if (bktr == NULL) { 591 /* the device is no longer valid/functioning */ 592 return (ENXIO); 593 } 594 595 if (!(bktr->flags & METEOR_INITALIZED)) /* device not found */ 596 return( ENXIO ); 597 598 /* Record that the device is now busy */ 599 device_busy(devclass_get_device(bktr_devclass, unit)); 600 601 602 if (bt848_card != -1) { 603 if ((bt848_card >> 8 == unit ) && 604 ( (bt848_card & 0xff) < Bt848_MAX_CARD )) { 605 if ( bktr->bt848_card != (bt848_card & 0xff) ) { 606 bktr->bt848_card = (bt848_card & 0xff); 607 probeCard(bktr, FALSE, unit); 608 } 609 } 610 } 611 612 if (bt848_tuner != -1) { 613 if ((bt848_tuner >> 8 == unit ) && 614 ( (bt848_tuner & 0xff) < Bt848_MAX_TUNER )) { 615 if ( bktr->bt848_tuner != (bt848_tuner & 0xff) ) { 616 bktr->bt848_tuner = (bt848_tuner & 0xff); 617 probeCard(bktr, FALSE, unit); 618 } 619 } 620 } 621 622 if (bt848_reverse_mute != -1) { 623 if ((bt848_reverse_mute >> 8) == unit ) { 624 bktr->reverse_mute = bt848_reverse_mute & 0xff; 625 } 626 } 627 628 if (bt848_slow_msp_audio != -1) { 629 if ((bt848_slow_msp_audio >> 8) == unit ) { 630 bktr->slow_msp_audio = (bt848_slow_msp_audio & 0xff); 631 } 632 } 633 634#ifdef BKTR_NEW_MSP34XX_DRIVER 635 if (bt848_stereo_once != 0) { 636 if ((bt848_stereo_once >> 8) == unit ) { 637 bktr->stereo_once = (bt848_stereo_once & 0xff); 638 } 639 } 640 641 if (bt848_amsound != -1) { 642 if ((bt848_amsound >> 8) == unit ) { 643 bktr->amsound = (bt848_amsound & 0xff); 644 } 645 } 646 647 if (bt848_dolby != -1) { 648 if ((bt848_dolby >> 8) == unit ) { 649 bktr->dolby = (bt848_dolby & 0xff); 650 } 651 } 652#endif 653 654 switch ( FUNCTION( minor(dev) ) ) { 655 case VIDEO_DEV: 656 result = video_open( bktr ); 657 break; 658 case TUNER_DEV: 659 result = tuner_open( bktr ); 660 break; 661 case VBI_DEV: 662 result = vbi_open( bktr ); 663 break; 664 default: 665 result = ENXIO; 666 break; 667 } 668 669 /* If there was an error opening the device, undo the busy status */ 670 if (result != 0) 671 device_unbusy(devclass_get_device(bktr_devclass, unit)); 672 return( result ); 673} 674 675 676/* 677 * 678 */ 679static int 680bktr_close( dev_t dev, int flags, int fmt, struct thread *td ) 681{ 682 bktr_ptr_t bktr; 683 int unit; 684 int result; 685 686 unit = UNIT( minor(dev) ); 687 688 /* Get the device data */ 689 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 690 if (bktr == NULL) { 691 /* the device is no longer valid/functioning */ 692 return (ENXIO); 693 } 694 695 switch ( FUNCTION( minor(dev) ) ) { 696 case VIDEO_DEV: 697 result = video_close( bktr ); 698 break; 699 case TUNER_DEV: 700 result = tuner_close( bktr ); 701 break; 702 case VBI_DEV: 703 result = vbi_close( bktr ); 704 break; 705 default: 706 return (ENXIO); 707 break; 708 } 709 710 device_unbusy(devclass_get_device(bktr_devclass, unit)); 711 return( result ); 712} 713 714 715/* 716 * 717 */ 718static int 719bktr_read( dev_t dev, struct uio *uio, int ioflag ) 720{ 721 bktr_ptr_t bktr; 722 int unit; 723 724 unit = UNIT(minor(dev)); 725 726 /* Get the device data */ 727 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 728 if (bktr == NULL) { 729 /* the device is no longer valid/functioning */ 730 return (ENXIO); 731 } 732 733 switch ( FUNCTION( minor(dev) ) ) { 734 case VIDEO_DEV: 735 return( video_read( bktr, unit, dev, uio ) ); 736 case VBI_DEV: 737 return( vbi_read( bktr, uio, ioflag ) ); 738 } 739 return( ENXIO ); 740} 741 742 743/* 744 * 745 */ 746static int 747bktr_write( dev_t dev, struct uio *uio, int ioflag ) 748{ 749 return( EINVAL ); /* XXX or ENXIO ? */ 750} 751 752 753/* 754 * 755 */ 756static int 757bktr_ioctl( dev_t dev, ioctl_cmd_t cmd, caddr_t arg, int flag, struct thread *td ) 758{ 759 bktr_ptr_t bktr; 760 int unit; 761 762 unit = UNIT(minor(dev)); 763 764 /* Get the device data */ 765 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 766 if (bktr == NULL) { 767 /* the device is no longer valid/functioning */ 768 return (ENXIO); 769 } 770 771 if (bktr->bigbuf == 0) /* no frame buffer allocated (ioctl failed) */ 772 return( ENOMEM ); 773 774 switch ( FUNCTION( minor(dev) ) ) { 775 case VIDEO_DEV: 776 return( video_ioctl( bktr, unit, cmd, arg, td ) ); 777 case TUNER_DEV: 778 return( tuner_ioctl( bktr, unit, cmd, arg, td ) ); 779 } 780 781 return( ENXIO ); 782} 783 784 785/* 786 * 787 */ 788static int 789bktr_mmap( dev_t dev, vm_offset_t offset, vm_paddr_t *paddr, int nprot ) 790{ 791 int unit; 792 bktr_ptr_t bktr; 793 794 unit = UNIT(minor(dev)); 795 796 if (FUNCTION(minor(dev)) > 0) /* only allow mmap on /dev/bktr[n] */ 797 return( -1 ); 798 799 /* Get the device data */ 800 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 801 if (bktr == NULL) { 802 /* the device is no longer valid/functioning */ 803 return (ENXIO); 804 } 805 806 if (nprot & PROT_EXEC) 807 return( -1 ); 808 809 if (offset < 0) 810 return( -1 ); 811 812 if (offset >= bktr->alloc_pages * PAGE_SIZE) 813 return( -1 ); 814 815 *paddr = vtophys(bktr->bigbuf) + offset; 816 return( 0 ); 817} 818 819static int 820bktr_poll( dev_t dev, int events, struct thread *td) 821{ 822 int unit; 823 bktr_ptr_t bktr; 824 int revents = 0; 825 DECLARE_INTR_MASK(s); 826 827 unit = UNIT(minor(dev)); 828 829 /* Get the device data */ 830 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 831 if (bktr == NULL) { 832 /* the device is no longer valid/functioning */ 833 return (ENXIO); 834 } 835 836 LOCK_VBI(bktr); 837 DISABLE_INTR(s); 838 839 if (events & (POLLIN | POLLRDNORM)) { 840 841 switch ( FUNCTION( minor(dev) ) ) { 842 case VBI_DEV: 843 if(bktr->vbisize == 0) 844 selrecord(td, &bktr->vbi_select); 845 else 846 revents |= events & (POLLIN | POLLRDNORM); 847 break; 848 } 849 } 850 851 ENABLE_INTR(s); 852 UNLOCK_VBI(bktr); 853 854 return (revents); 855} 856 857#endif /* FreeBSD 4.x specific kernel interface routines */ 858 859/*****************/ 860/* *** BSDI *** */ 861/*****************/ 862 863#if defined(__bsdi__) 864#endif /* __bsdi__ BSDI specific kernel interface routines */ 865 866 867/*****************************/ 868/* *** OpenBSD / NetBSD *** */ 869/*****************************/ 870#if defined(__NetBSD__) || defined(__OpenBSD__) 871 872#define IPL_VIDEO IPL_BIO /* XXX */ 873 874static int bktr_intr(void *arg) { return common_bktr_intr(arg); } 875 876#define bktr_open bktropen 877#define bktr_close bktrclose 878#define bktr_read bktrread 879#define bktr_write bktrwrite 880#define bktr_ioctl bktrioctl 881#define bktr_mmap bktrmmap 882 883vm_offset_t vm_page_alloc_contig(vm_offset_t, vm_offset_t, 884 vm_offset_t, vm_offset_t); 885 886#if defined(__OpenBSD__) 887static int bktr_probe(struct device *, void *, void *); 888#else 889static int bktr_probe(struct device *, struct cfdata *, void *); 890#endif 891static void bktr_attach(struct device *, struct device *, void *); 892 893struct cfattach bktr_ca = { 894 sizeof(struct bktr_softc), bktr_probe, bktr_attach 895}; 896 897#if defined(__NetBSD__) 898extern struct cfdriver bktr_cd; 899#else 900struct cfdriver bktr_cd = { 901 NULL, "bktr", DV_DULL 902}; 903#endif 904 905int 906bktr_probe(parent, match, aux) 907 struct device *parent; 908#if defined(__OpenBSD__) 909 void *match; 910#else 911 struct cfdata *match; 912#endif 913 void *aux; 914{ 915 struct pci_attach_args *pa = aux; 916 917 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_BROOKTREE && 918 (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT848 || 919 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT849 || 920 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT878 || 921 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT879)) 922 return 1; 923 924 return 0; 925} 926 927 928/* 929 * the attach routine. 930 */ 931static void 932bktr_attach(struct device *parent, struct device *self, void *aux) 933{ 934 bktr_ptr_t bktr; 935 u_long latency; 936 u_long fun; 937 unsigned int rev; 938 939#if defined(__OpenBSD__) 940 struct pci_attach_args *pa = aux; 941 pci_chipset_tag_t pc = pa->pa_pc; 942 943 pci_intr_handle_t ih; 944 const char *intrstr; 945 int retval; 946 int unit; 947 948 bktr = (bktr_ptr_t)self; 949 unit = bktr->bktr_dev.dv_unit; 950 951 bktr->pc = pa->pa_pc; 952 bktr->tag = pa->pa_tag; 953 bktr->dmat = pa->pa_dmat; 954 955 /* 956 * map memory 957 */ 958 bktr->memt = pa->pa_memt; 959 retval = pci_mem_find(pc, pa->pa_tag, PCI_MAPREG_START, 960 &bktr->phys_base, &bktr->obmemsz, NULL); 961 if (!retval) 962 retval = bus_space_map(pa->pa_memt, bktr->phys_base, 963 bktr->obmemsz, 0, &bktr->memh); 964 if (retval) { 965 printf(": couldn't map memory\n"); 966 return; 967 } 968 969 970 /* 971 * map interrupt 972 */ 973 if (pci_intr_map(pa->pa_pc, pa->pa_intrtag, pa->pa_intrpin, 974 pa->pa_intrline, &ih)) { 975 printf(": couldn't map interrupt\n"); 976 return; 977 } 978 intrstr = pci_intr_string(pa->pa_pc, ih); 979 980 bktr->ih = pci_intr_establish(pa->pa_pc, ih, IPL_VIDEO, 981 bktr_intr, bktr, bktr->bktr_dev.dv_xname); 982 if (bktr->ih == NULL) { 983 printf(": couldn't establish interrupt"); 984 if (intrstr != NULL) 985 printf(" at %s", intrstr); 986 printf("\n"); 987 return; 988 } 989 990 if (intrstr != NULL) 991 printf(": %s\n", intrstr); 992#endif /* __OpenBSD__ */ 993 994#if defined(__NetBSD__) 995 struct pci_attach_args *pa = aux; 996 pci_intr_handle_t ih; 997 const char *intrstr; 998 int retval; 999 int unit; 1000 1001 bktr = (bktr_ptr_t)self; 1002 unit = bktr->bktr_dev.dv_unit; 1003 bktr->dmat = pa->pa_dmat; 1004 1005 printf("\n"); 1006 1007 /* 1008 * map memory 1009 */ 1010 retval = pci_mapreg_map(pa, PCI_MAPREG_START, 1011 PCI_MAPREG_TYPE_MEM 1012 | PCI_MAPREG_MEM_TYPE_32BIT, 0, 1013 &bktr->memt, &bktr->memh, NULL, 1014 &bktr->obmemsz); 1015 DPR(("pci_mapreg_map: memt %x, memh %x, size %x\n", 1016 bktr->memt, (u_int)bktr->memh, (u_int)bktr->obmemsz)); 1017 if (retval) { 1018 printf("%s: couldn't map memory\n", bktr_name(bktr)); 1019 return; 1020 } 1021 1022 /* 1023 * Disable the brooktree device 1024 */ 1025 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED); 1026 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED); 1027 1028 /* 1029 * map interrupt 1030 */ 1031 if (pci_intr_map(pa->pa_pc, pa->pa_intrtag, pa->pa_intrpin, 1032 pa->pa_intrline, &ih)) { 1033 printf("%s: couldn't map interrupt\n", 1034 bktr_name(bktr)); 1035 return; 1036 } 1037 intrstr = pci_intr_string(pa->pa_pc, ih); 1038 bktr->ih = pci_intr_establish(pa->pa_pc, ih, IPL_VIDEO, 1039 bktr_intr, bktr); 1040 if (bktr->ih == NULL) { 1041 printf("%s: couldn't establish interrupt", 1042 bktr_name(bktr)); 1043 if (intrstr != NULL) 1044 printf(" at %s", intrstr); 1045 printf("\n"); 1046 return; 1047 } 1048 if (intrstr != NULL) 1049 printf("%s: interrupting at %s\n", bktr_name(bktr), 1050 intrstr); 1051#endif /* __NetBSD__ */ 1052 1053/* 1054 * PCI latency timer. 32 is a good value for 4 bus mastering slots, if 1055 * you have more than four, then 16 would probably be a better value. 1056 */ 1057#ifndef BROOKTREE_DEF_LATENCY_VALUE 1058#define BROOKTREE_DEF_LATENCY_VALUE 10 1059#endif 1060 latency = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_LATENCY_TIMER); 1061 latency = (latency >> 8) & 0xff; 1062 1063 if (!latency) { 1064 if (bootverbose) { 1065 printf("%s: PCI bus latency was 0 changing to %d", 1066 bktr_name(bktr), BROOKTREE_DEF_LATENCY_VALUE); 1067 } 1068 latency = BROOKTREE_DEF_LATENCY_VALUE; 1069 pci_conf_write(pa->pa_pc, pa->pa_tag, 1070 PCI_LATENCY_TIMER, latency<<8); 1071 } 1072 1073 1074 /* Enabled Bus Master 1075 XXX: check if all old DMA is stopped first (e.g. after warm 1076 boot) */ 1077 fun = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); 1078 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, 1079 fun | PCI_COMMAND_MASTER_ENABLE); 1080 1081 /* read the pci id and determine the card type */ 1082 fun = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_ID_REG); 1083 rev = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_CLASS_REG) & 0x000000ff; 1084 1085 common_bktr_attach(bktr, unit, fun, rev); 1086} 1087 1088 1089/* 1090 * Special Memory Allocation 1091 */ 1092vm_offset_t 1093get_bktr_mem(bktr, dmapp, size) 1094 bktr_ptr_t bktr; 1095 bus_dmamap_t *dmapp; 1096 unsigned int size; 1097{ 1098 bus_dma_tag_t dmat = bktr->dmat; 1099 bus_dma_segment_t seg; 1100 bus_size_t align; 1101 int rseg; 1102 caddr_t kva; 1103 1104 /* 1105 * Allocate a DMA area 1106 */ 1107 align = 1 << 24; 1108 if (bus_dmamem_alloc(dmat, size, align, 0, &seg, 1, 1109 &rseg, BUS_DMA_NOWAIT)) { 1110 align = PAGE_SIZE; 1111 if (bus_dmamem_alloc(dmat, size, align, 0, &seg, 1, 1112 &rseg, BUS_DMA_NOWAIT)) { 1113 printf("%s: Unable to dmamem_alloc of %d bytes\n", 1114 bktr_name(bktr), size); 1115 return 0; 1116 } 1117 } 1118 if (bus_dmamem_map(dmat, &seg, rseg, size, 1119 &kva, BUS_DMA_NOWAIT|BUS_DMA_COHERENT)) { 1120 printf("%s: Unable to dmamem_map of %d bytes\n", 1121 bktr_name(bktr), size); 1122 bus_dmamem_free(dmat, &seg, rseg); 1123 return 0; 1124 } 1125#ifdef __OpenBSD__ 1126 bktr->dm_mapsize = size; 1127#endif 1128 /* 1129 * Create and locd the DMA map for the DMA area 1130 */ 1131 if (bus_dmamap_create(dmat, size, 1, size, 0, BUS_DMA_NOWAIT, dmapp)) { 1132 printf("%s: Unable to dmamap_create of %d bytes\n", 1133 bktr_name(bktr), size); 1134 bus_dmamem_unmap(dmat, kva, size); 1135 bus_dmamem_free(dmat, &seg, rseg); 1136 return 0; 1137 } 1138 if (bus_dmamap_load(dmat, *dmapp, kva, size, NULL, BUS_DMA_NOWAIT)) { 1139 printf("%s: Unable to dmamap_load of %d bytes\n", 1140 bktr_name(bktr), size); 1141 bus_dmamem_unmap(dmat, kva, size); 1142 bus_dmamem_free(dmat, &seg, rseg); 1143 bus_dmamap_destroy(dmat, *dmapp); 1144 return 0; 1145 } 1146 return (vm_offset_t)kva; 1147} 1148 1149void 1150free_bktr_mem(bktr, dmap, kva) 1151 bktr_ptr_t bktr; 1152 bus_dmamap_t dmap; 1153 vm_offset_t kva; 1154{ 1155 bus_dma_tag_t dmat = bktr->dmat; 1156 1157#ifdef __NetBSD__ 1158 bus_dmamem_unmap(dmat, (caddr_t)kva, dmap->dm_mapsize); 1159#else 1160 bus_dmamem_unmap(dmat, (caddr_t)kva, bktr->dm_mapsize); 1161#endif 1162 bus_dmamem_free(dmat, dmap->dm_segs, 1); 1163 bus_dmamap_destroy(dmat, dmap); 1164} 1165 1166 1167/*--------------------------------------------------------- 1168** 1169** BrookTree 848 character device driver routines 1170** 1171**--------------------------------------------------------- 1172*/ 1173 1174 1175#define VIDEO_DEV 0x00 1176#define TUNER_DEV 0x01 1177#define VBI_DEV 0x02 1178 1179#define UNIT(x) (minor((x) & 0x0f)) 1180#define FUNCTION(x) (minor((x >> 4) & 0x0f)) 1181 1182/* 1183 * 1184 */ 1185int 1186bktr_open(dev_t dev, int flags, int fmt, struct thread *td) 1187{ 1188 bktr_ptr_t bktr; 1189 int unit; 1190 1191 unit = UNIT(dev); 1192 1193 /* unit out of range */ 1194 if ((unit > bktr_cd.cd_ndevs) || (bktr_cd.cd_devs[unit] == NULL)) 1195 return(ENXIO); 1196 1197 bktr = bktr_cd.cd_devs[unit]; 1198 1199 if (!(bktr->flags & METEOR_INITALIZED)) /* device not found */ 1200 return(ENXIO); 1201 1202 switch (FUNCTION(dev)) { 1203 case VIDEO_DEV: 1204 return(video_open(bktr)); 1205 case TUNER_DEV: 1206 return(tuner_open(bktr)); 1207 case VBI_DEV: 1208 return(vbi_open(bktr)); 1209 } 1210 1211 return(ENXIO); 1212} 1213 1214 1215/* 1216 * 1217 */ 1218int 1219bktr_close(dev_t dev, int flags, int fmt, struct thread *td) 1220{ 1221 bktr_ptr_t bktr; 1222 int unit; 1223 1224 unit = UNIT(dev); 1225 1226 bktr = bktr_cd.cd_devs[unit]; 1227 1228 switch (FUNCTION(dev)) { 1229 case VIDEO_DEV: 1230 return(video_close(bktr)); 1231 case TUNER_DEV: 1232 return(tuner_close(bktr)); 1233 case VBI_DEV: 1234 return(vbi_close(bktr)); 1235 } 1236 1237 return(ENXIO); 1238} 1239 1240/* 1241 * 1242 */ 1243int 1244bktr_read(dev_t dev, struct uio *uio, int ioflag) 1245{ 1246 bktr_ptr_t bktr; 1247 int unit; 1248 1249 unit = UNIT(dev); 1250 1251 bktr = bktr_cd.cd_devs[unit]; 1252 1253 switch (FUNCTION(dev)) { 1254 case VIDEO_DEV: 1255 return(video_read(bktr, unit, dev, uio)); 1256 case VBI_DEV: 1257 return(vbi_read(bktr, uio, ioflag)); 1258 } 1259 1260 return(ENXIO); 1261} 1262 1263 1264/* 1265 * 1266 */ 1267int 1268bktr_write(dev_t dev, struct uio *uio, int ioflag) 1269{ 1270 /* operation not supported */ 1271 return(EOPNOTSUPP); 1272} 1273 1274/* 1275 * 1276 */ 1277int 1278bktr_ioctl(dev_t dev, ioctl_cmd_t cmd, caddr_t arg, int flag, struct thread *td) 1279{ 1280 bktr_ptr_t bktr; 1281 int unit; 1282 1283 unit = UNIT(dev); 1284 1285 bktr = bktr_cd.cd_devs[unit]; 1286 1287 if (bktr->bigbuf == 0) /* no frame buffer allocated (ioctl failed) */ 1288 return(ENOMEM); 1289 1290 switch (FUNCTION(dev)) { 1291 case VIDEO_DEV: 1292 return(video_ioctl(bktr, unit, cmd, arg, pr)); 1293 case TUNER_DEV: 1294 return(tuner_ioctl(bktr, unit, cmd, arg, pr)); 1295 } 1296 1297 return(ENXIO); 1298} 1299 1300/* 1301 * 1302 */ 1303paddr_t 1304bktr_mmap(dev_t dev, off_t offset, int nprot) 1305{ 1306 int unit; 1307 bktr_ptr_t bktr; 1308 1309 unit = UNIT(dev); 1310 1311 if (FUNCTION(dev) > 0) /* only allow mmap on /dev/bktr[n] */ 1312 return(-1); 1313 1314 bktr = bktr_cd.cd_devs[unit]; 1315 1316 if ((vaddr_t)offset < 0) 1317 return(-1); 1318 1319 if ((vaddr_t)offset >= bktr->alloc_pages * PAGE_SIZE) 1320 return(-1); 1321 1322#ifdef __NetBSD__ 1323 return (bus_dmamem_mmap(bktr->dmat, bktr->dm_mem->dm_segs, 1, 1324 (vaddr_t)offset, nprot, BUS_DMA_WAITOK)); 1325#else 1326 return(i386_btop(vtophys(bktr->bigbuf) + offset)); 1327#endif 1328} 1329 1330#endif /* __NetBSD__ || __OpenBSD__ */ 1331