bktr_os.c revision 139919
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 139919 2005-01-08 22:52:00Z imp $"); 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/module.h> 66#include <sys/signalvar.h> 67#include <sys/malloc.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 76#include <vm/vm.h> 77#include <vm/vm_kern.h> 78#include <vm/pmap.h> 79#include <vm/vm_extern.h> 80 81#include <sys/bus.h> /* used by smbus and newbus */ 82 83#include <machine/bus_memio.h> /* used by bus space */ 84#include <machine/bus.h> /* used by bus space and newbus */ 85#include <sys/bus.h> 86 87#include <sys/rman.h> /* used by newbus */ 88#include <machine/resource.h> /* used by newbus */ 89 90#if (__FreeBSD_version < 500000) 91#include <machine/clock.h> /* for DELAY */ 92#include <pci/pcivar.h> 93#include <pci/pcireg.h> 94#else 95#include <dev/pci/pcivar.h> 96#include <dev/pci/pcireg.h> 97#endif 98 99#include <sys/sysctl.h> 100int bt848_card = -1; 101int bt848_tuner = -1; 102int bt848_reverse_mute = -1; 103int bt848_format = -1; 104int bt848_slow_msp_audio = -1; 105#ifdef BKTR_NEW_MSP34XX_DRIVER 106int bt848_stereo_once = 0; /* no continuous stereo monitoring */ 107int bt848_amsound = 0; /* hard-wire AM sound at 6.5 Hz (france), 108 the autoscan seems work well only with FM... */ 109int bt848_dolby = 0; 110#endif 111 112SYSCTL_NODE(_hw, OID_AUTO, bt848, CTLFLAG_RW, 0, "Bt848 Driver mgmt"); 113SYSCTL_INT(_hw_bt848, OID_AUTO, card, CTLFLAG_RW, &bt848_card, -1, ""); 114SYSCTL_INT(_hw_bt848, OID_AUTO, tuner, CTLFLAG_RW, &bt848_tuner, -1, ""); 115SYSCTL_INT(_hw_bt848, OID_AUTO, reverse_mute, CTLFLAG_RW, &bt848_reverse_mute, -1, ""); 116SYSCTL_INT(_hw_bt848, OID_AUTO, format, CTLFLAG_RW, &bt848_format, -1, ""); 117SYSCTL_INT(_hw_bt848, OID_AUTO, slow_msp_audio, CTLFLAG_RW, &bt848_slow_msp_audio, -1, ""); 118#ifdef BKTR_NEW_MSP34XX_DRIVER 119SYSCTL_INT(_hw_bt848, OID_AUTO, stereo_once, CTLFLAG_RW, &bt848_stereo_once, 0, ""); 120SYSCTL_INT(_hw_bt848, OID_AUTO, amsound, CTLFLAG_RW, &bt848_amsound, 0, ""); 121SYSCTL_INT(_hw_bt848, OID_AUTO, dolby, CTLFLAG_RW, &bt848_dolby, 0, ""); 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 <vm/vm.h> 152 153#ifndef __NetBSD__ 154#include <vm/vm_kern.h> 155#include <vm/pmap.h> 156#include <vm/vm_extern.h> 157#endif 158 159#include <sys/device.h> 160#include <dev/pci/pcivar.h> 161#include <dev/pci/pcireg.h> 162#include <dev/pci/pcidevs.h> 163 164#define BKTR_DEBUG 165#ifdef BKTR_DEBUG 166int bktr_debug = 0; 167#define DPR(x) (bktr_debug ? printf x : 0) 168#else 169#define DPR(x) 170#endif 171#endif /* __NetBSD__ || __OpenBSD__ */ 172 173 174#ifdef __NetBSD__ 175#include <dev/ic/bt8xx.h> /* NetBSD location for .h files */ 176#include <dev/pci/bktr/bktr_reg.h> 177#include <dev/pci/bktr/bktr_tuner.h> 178#include <dev/pci/bktr/bktr_card.h> 179#include <dev/pci/bktr/bktr_audio.h> 180#include <dev/pci/bktr/bktr_core.h> 181#include <dev/pci/bktr/bktr_os.h> 182#else /* Traditional location for .h files */ 183#include <dev/bktr/ioctl_meteor.h> 184#include <dev/bktr/ioctl_bt848.h> /* extensions to ioctl_meteor.h */ 185#include <dev/bktr/bktr_reg.h> 186#include <dev/bktr/bktr_tuner.h> 187#include <dev/bktr/bktr_card.h> 188#include <dev/bktr/bktr_audio.h> 189#include <dev/bktr/bktr_core.h> 190#include <dev/bktr/bktr_os.h> 191 192#if defined(BKTR_USE_FREEBSD_SMBUS) 193#include <dev/bktr/bktr_i2c.h> 194 195#include "iicbb_if.h" 196#include "smbus_if.h" 197#endif 198#endif 199 200 201/****************************/ 202/* *** FreeBSD 4.x code *** */ 203/****************************/ 204 205static int bktr_probe( device_t dev ); 206static int bktr_attach( device_t dev ); 207static int bktr_detach( device_t dev ); 208static int bktr_shutdown( device_t dev ); 209static void bktr_intr(void *arg) { common_bktr_intr(arg); } 210 211static device_method_t bktr_methods[] = { 212 /* Device interface */ 213 DEVMETHOD(device_probe, bktr_probe), 214 DEVMETHOD(device_attach, bktr_attach), 215 DEVMETHOD(device_detach, bktr_detach), 216 DEVMETHOD(device_shutdown, bktr_shutdown), 217 218#if defined(BKTR_USE_FREEBSD_SMBUS) 219 /* iicbb interface */ 220 DEVMETHOD(iicbb_callback, bti2c_iic_callback), 221 DEVMETHOD(iicbb_setsda, bti2c_iic_setsda), 222 DEVMETHOD(iicbb_setscl, bti2c_iic_setscl), 223 DEVMETHOD(iicbb_getsda, bti2c_iic_getsda), 224 DEVMETHOD(iicbb_getscl, bti2c_iic_getscl), 225 DEVMETHOD(iicbb_reset, bti2c_iic_reset), 226 227 /* smbus interface */ 228 DEVMETHOD(smbus_callback, bti2c_smb_callback), 229 DEVMETHOD(smbus_writeb, bti2c_smb_writeb), 230 DEVMETHOD(smbus_writew, bti2c_smb_writew), 231 DEVMETHOD(smbus_readb, bti2c_smb_readb), 232#endif 233 234 { 0, 0 } 235}; 236 237static driver_t bktr_driver = { 238 "bktr", 239 bktr_methods, 240 sizeof(struct bktr_softc), 241}; 242 243static devclass_t bktr_devclass; 244 245static d_open_t bktr_open; 246static d_close_t bktr_close; 247static d_read_t bktr_read; 248static d_write_t bktr_write; 249static d_ioctl_t bktr_ioctl; 250static d_mmap_t bktr_mmap; 251static d_poll_t bktr_poll; 252 253static struct cdevsw bktr_cdevsw = { 254 .d_version = D_VERSION, 255 .d_flags = D_NEEDGIANT, 256 .d_open = bktr_open, 257 .d_close = bktr_close, 258 .d_read = bktr_read, 259 .d_write = bktr_write, 260 .d_ioctl = bktr_ioctl, 261 .d_poll = bktr_poll, 262 .d_mmap = bktr_mmap, 263 .d_name = "bktr", 264}; 265 266DRIVER_MODULE(bktr, pci, bktr_driver, bktr_devclass, 0, 0); 267MODULE_DEPEND(bktr, bktr_mem, 1,1,1); 268MODULE_VERSION(bktr, 1); 269 270 271/* 272 * the boot time probe routine. 273 */ 274static int 275bktr_probe( device_t dev ) 276{ 277 unsigned int type = pci_get_devid(dev); 278 unsigned int rev = pci_get_revid(dev); 279 280 if (PCI_VENDOR(type) == PCI_VENDOR_BROOKTREE) 281 { 282 switch (PCI_PRODUCT(type)) { 283 case PCI_PRODUCT_BROOKTREE_BT848: 284 if (rev == 0x12) 285 device_set_desc(dev, "BrookTree 848A"); 286 else 287 device_set_desc(dev, "BrookTree 848"); 288 return 0; 289 case PCI_PRODUCT_BROOKTREE_BT849: 290 device_set_desc(dev, "BrookTree 849A"); 291 return 0; 292 case PCI_PRODUCT_BROOKTREE_BT878: 293 device_set_desc(dev, "BrookTree 878"); 294 return 0; 295 case PCI_PRODUCT_BROOKTREE_BT879: 296 device_set_desc(dev, "BrookTree 879"); 297 return 0; 298 } 299 }; 300 301 return ENXIO; 302} 303 304 305/* 306 * the attach routine. 307 */ 308static int 309bktr_attach( device_t dev ) 310{ 311 u_long latency; 312 u_long fun; 313 u_long val; 314 unsigned int rev; 315 unsigned int unit; 316 int error = 0; 317#ifdef BROOKTREE_IRQ 318 u_long old_irq, new_irq; 319#endif 320 321 struct bktr_softc *bktr = device_get_softc(dev); 322 323 unit = device_get_unit(dev); 324 325 /* build the device name for bktr_name() */ 326 snprintf(bktr->bktr_xname, sizeof(bktr->bktr_xname), "bktr%d",unit); 327 328 /* 329 * Enable bus mastering and Memory Mapped device 330 */ 331 val = pci_read_config(dev, PCIR_COMMAND, 4); 332 val |= (PCIM_CMD_MEMEN|PCIM_CMD_BUSMASTEREN); 333 pci_write_config(dev, PCIR_COMMAND, val, 4); 334 335 /* 336 * Map control/status registers. 337 */ 338 bktr->mem_rid = PCIR_BAR(0); 339 bktr->res_mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, 340 &bktr->mem_rid, RF_ACTIVE); 341 342 if (!bktr->res_mem) { 343 device_printf(dev, "could not map memory\n"); 344 error = ENXIO; 345 goto fail; 346 } 347 bktr->memt = rman_get_bustag(bktr->res_mem); 348 bktr->memh = rman_get_bushandle(bktr->res_mem); 349 350 351 /* 352 * Disable the brooktree device 353 */ 354 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED); 355 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED); 356 357 358#ifdef BROOKTREE_IRQ /* from the configuration file */ 359 old_irq = pci_conf_read(tag, PCI_INTERRUPT_REG); 360 pci_conf_write(tag, PCI_INTERRUPT_REG, BROOKTREE_IRQ); 361 new_irq = pci_conf_read(tag, PCI_INTERRUPT_REG); 362 printf("bktr%d: attach: irq changed from %d to %d\n", 363 unit, (old_irq & 0xff), (new_irq & 0xff)); 364#endif 365 366 /* 367 * Allocate our interrupt. 368 */ 369 bktr->irq_rid = 0; 370 bktr->res_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, 371 &bktr->irq_rid, RF_SHAREABLE | RF_ACTIVE); 372 if (bktr->res_irq == NULL) { 373 device_printf(dev, "could not map interrupt\n"); 374 error = ENXIO; 375 goto fail; 376 } 377 378 error = bus_setup_intr(dev, bktr->res_irq, INTR_TYPE_TTY, 379 bktr_intr, bktr, &bktr->res_ih); 380 if (error) { 381 device_printf(dev, "could not setup irq\n"); 382 goto fail; 383 384 } 385 386 387 /* Update the Device Control Register */ 388 /* on Bt878 and Bt879 cards */ 389 fun = pci_read_config( dev, 0x40, 2); 390 fun = fun | 1; /* Enable writes to the sub-system vendor ID */ 391 392#if defined( BKTR_430_FX_MODE ) 393 if (bootverbose) printf("Using 430 FX chipset compatibilty mode\n"); 394 fun = fun | 2; /* Enable Intel 430 FX compatibility mode */ 395#endif 396 397#if defined( BKTR_SIS_VIA_MODE ) 398 if (bootverbose) printf("Using SiS/VIA chipset compatibilty mode\n"); 399 fun = fun | 4; /* Enable SiS/VIA compatibility mode (usefull for 400 OPTi chipset motherboards too */ 401#endif 402 pci_write_config(dev, 0x40, fun, 2); 403 404#if defined(BKTR_USE_FREEBSD_SMBUS) 405 if (bt848_i2c_attach(dev)) 406 printf("bktr%d: i2c_attach: can't attach\n", unit); 407#endif 408 409/* 410 * PCI latency timer. 32 is a good value for 4 bus mastering slots, if 411 * you have more than four, then 16 would probably be a better value. 412 */ 413#ifndef BROOKTREE_DEF_LATENCY_VALUE 414#define BROOKTREE_DEF_LATENCY_VALUE 10 415#endif 416 latency = pci_read_config(dev, PCI_LATENCY_TIMER, 4); 417 latency = (latency >> 8) & 0xff; 418 if ( bootverbose ) { 419 if (latency) 420 printf("brooktree%d: PCI bus latency is", unit); 421 else 422 printf("brooktree%d: PCI bus latency was 0 changing to", 423 unit); 424 } 425 if ( !latency ) { 426 latency = BROOKTREE_DEF_LATENCY_VALUE; 427 pci_write_config(dev, PCI_LATENCY_TIMER, latency<<8, 4); 428 } 429 if ( bootverbose ) { 430 printf(" %d.\n", (int) latency); 431 } 432 433 /* read the pci device id and revision id */ 434 fun = pci_get_devid(dev); 435 rev = pci_get_revid(dev); 436 437 /* call the common attach code */ 438 common_bktr_attach( bktr, unit, fun, rev ); 439 440 /* make the device entries */ 441 bktr->bktrdev = make_dev(&bktr_cdevsw, unit, 442 0, 0, 0444, "bktr%d", unit); 443 bktr->tunerdev= make_dev(&bktr_cdevsw, unit+16, 444 0, 0, 0444, "tuner%d", unit); 445 bktr->vbidev = make_dev(&bktr_cdevsw, unit+32, 446 0, 0, 0444, "vbi%d" , unit); 447 448 449 /* if this is unit 0 (/dev/bktr0, /dev/tuner0, /dev/vbi0) then make */ 450 /* alias entries to /dev/bktr /dev/tuner and /dev/vbi */ 451#if (__FreeBSD_version >=500000) 452 if (unit == 0) { 453 bktr->bktrdev_alias = make_dev_alias(bktr->bktrdev, "bktr"); 454 bktr->tunerdev_alias= make_dev_alias(bktr->tunerdev, "tuner"); 455 bktr->vbidev_alias = make_dev_alias(bktr->vbidev, "vbi"); 456 } 457#endif 458 459 return 0; 460 461fail: 462 if (bktr->res_irq) 463 bus_release_resource(dev, SYS_RES_IRQ, bktr->irq_rid, bktr->res_irq); 464 if (bktr->res_mem) 465 bus_release_resource(dev, SYS_RES_IRQ, bktr->mem_rid, bktr->res_mem); 466 return error; 467 468} 469 470/* 471 * the detach routine. 472 */ 473static int 474bktr_detach( device_t dev ) 475{ 476 struct bktr_softc *bktr = device_get_softc(dev); 477 478#ifdef BKTR_NEW_MSP34XX_DRIVER 479 /* Disable the soundchip and kernel thread */ 480 if (bktr->msp3400c_info != NULL) 481 msp_detach(bktr); 482#endif 483 484 /* Disable the brooktree device */ 485 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED); 486 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED); 487 488#if defined(BKTR_USE_FREEBSD_SMBUS) 489 if (bt848_i2c_detach(dev)) 490 printf("bktr%d: i2c_attach: can't attach\n", 491 device_get_unit(dev)); 492#endif 493#ifdef USE_VBIMUTEX 494 mtx_destroy(&bktr->vbimutex); 495#endif 496 497 /* Note: We do not free memory for RISC programs, grab buffer, vbi buffers */ 498 /* The memory is retained by the bktr_mem module so we can unload and */ 499 /* then reload the main bktr driver module */ 500 501 /* Unregister the /dev/bktrN, tunerN and vbiN devices, 502 * the aliases for unit 0 are automatically destroyed */ 503 destroy_dev(bktr->vbidev); 504 destroy_dev(bktr->tunerdev); 505 destroy_dev(bktr->bktrdev); 506 507 /* 508 * Deallocate resources. 509 */ 510 bus_teardown_intr(dev, bktr->res_irq, bktr->res_ih); 511 bus_release_resource(dev, SYS_RES_IRQ, bktr->irq_rid, bktr->res_irq); 512 bus_release_resource(dev, SYS_RES_MEMORY, bktr->mem_rid, bktr->res_mem); 513 514 return 0; 515} 516 517/* 518 * the shutdown routine. 519 */ 520static int 521bktr_shutdown( device_t dev ) 522{ 523 struct bktr_softc *bktr = device_get_softc(dev); 524 525 /* Disable the brooktree device */ 526 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED); 527 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED); 528 529 return 0; 530} 531 532 533/* 534 * Special Memory Allocation 535 */ 536vm_offset_t 537get_bktr_mem( int unit, unsigned size ) 538{ 539 vm_offset_t addr = 0; 540 541 addr = (vm_offset_t)contigmalloc(size, M_DEVBUF, M_NOWAIT, 0, 542 0xffffffff, 1<<24, 0); 543 if (addr == 0) 544 addr = (vm_offset_t)contigmalloc(size, M_DEVBUF, M_NOWAIT, 0, 545 0xffffffff, PAGE_SIZE, 0); 546 if (addr == 0) { 547 printf("bktr%d: Unable to allocate %d bytes of memory.\n", 548 unit, size); 549 } 550 551 return( addr ); 552} 553 554 555/*--------------------------------------------------------- 556** 557** BrookTree 848 character device driver routines 558** 559**--------------------------------------------------------- 560*/ 561 562#define VIDEO_DEV 0x00 563#define TUNER_DEV 0x01 564#define VBI_DEV 0x02 565 566#define UNIT(x) ((x) & 0x0f) 567#define FUNCTION(x) (x >> 4) 568 569/* 570 * 571 */ 572static int 573bktr_open( struct cdev *dev, int flags, int fmt, struct thread *td ) 574{ 575 bktr_ptr_t bktr; 576 int unit; 577 int result; 578 579 unit = UNIT( minor(dev) ); 580 581 /* Get the device data */ 582 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 583 if (bktr == NULL) { 584 /* the device is no longer valid/functioning */ 585 return (ENXIO); 586 } 587 588 if (!(bktr->flags & METEOR_INITALIZED)) /* device not found */ 589 return( ENXIO ); 590 591 /* Record that the device is now busy */ 592 device_busy(devclass_get_device(bktr_devclass, unit)); 593 594 595 if (bt848_card != -1) { 596 if ((bt848_card >> 8 == unit ) && 597 ( (bt848_card & 0xff) < Bt848_MAX_CARD )) { 598 if ( bktr->bt848_card != (bt848_card & 0xff) ) { 599 bktr->bt848_card = (bt848_card & 0xff); 600 probeCard(bktr, FALSE, unit); 601 } 602 } 603 } 604 605 if (bt848_tuner != -1) { 606 if ((bt848_tuner >> 8 == unit ) && 607 ( (bt848_tuner & 0xff) < Bt848_MAX_TUNER )) { 608 if ( bktr->bt848_tuner != (bt848_tuner & 0xff) ) { 609 bktr->bt848_tuner = (bt848_tuner & 0xff); 610 probeCard(bktr, FALSE, unit); 611 } 612 } 613 } 614 615 if (bt848_reverse_mute != -1) { 616 if ((bt848_reverse_mute >> 8) == unit ) { 617 bktr->reverse_mute = bt848_reverse_mute & 0xff; 618 } 619 } 620 621 if (bt848_slow_msp_audio != -1) { 622 if ((bt848_slow_msp_audio >> 8) == unit ) { 623 bktr->slow_msp_audio = (bt848_slow_msp_audio & 0xff); 624 } 625 } 626 627#ifdef BKTR_NEW_MSP34XX_DRIVER 628 if (bt848_stereo_once != 0) { 629 if ((bt848_stereo_once >> 8) == unit ) { 630 bktr->stereo_once = (bt848_stereo_once & 0xff); 631 } 632 } 633 634 if (bt848_amsound != -1) { 635 if ((bt848_amsound >> 8) == unit ) { 636 bktr->amsound = (bt848_amsound & 0xff); 637 } 638 } 639 640 if (bt848_dolby != -1) { 641 if ((bt848_dolby >> 8) == unit ) { 642 bktr->dolby = (bt848_dolby & 0xff); 643 } 644 } 645#endif 646 647 switch ( FUNCTION( minor(dev) ) ) { 648 case VIDEO_DEV: 649 result = video_open( bktr ); 650 break; 651 case TUNER_DEV: 652 result = tuner_open( bktr ); 653 break; 654 case VBI_DEV: 655 result = vbi_open( bktr ); 656 break; 657 default: 658 result = ENXIO; 659 break; 660 } 661 662 /* If there was an error opening the device, undo the busy status */ 663 if (result != 0) 664 device_unbusy(devclass_get_device(bktr_devclass, unit)); 665 return( result ); 666} 667 668 669/* 670 * 671 */ 672static int 673bktr_close( struct cdev *dev, int flags, int fmt, struct thread *td ) 674{ 675 bktr_ptr_t bktr; 676 int unit; 677 int result; 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 result = video_close( bktr ); 691 break; 692 case TUNER_DEV: 693 result = tuner_close( bktr ); 694 break; 695 case VBI_DEV: 696 result = vbi_close( bktr ); 697 break; 698 default: 699 return (ENXIO); 700 break; 701 } 702 703 device_unbusy(devclass_get_device(bktr_devclass, unit)); 704 return( result ); 705} 706 707 708/* 709 * 710 */ 711static int 712bktr_read( struct cdev *dev, struct uio *uio, int ioflag ) 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 switch ( FUNCTION( minor(dev) ) ) { 727 case VIDEO_DEV: 728 return( video_read( bktr, unit, dev, uio ) ); 729 case VBI_DEV: 730 return( vbi_read( bktr, uio, ioflag ) ); 731 } 732 return( ENXIO ); 733} 734 735 736/* 737 * 738 */ 739static int 740bktr_write( struct cdev *dev, struct uio *uio, int ioflag ) 741{ 742 return( EINVAL ); /* XXX or ENXIO ? */ 743} 744 745 746/* 747 * 748 */ 749static int 750bktr_ioctl( struct cdev *dev, ioctl_cmd_t cmd, caddr_t arg, int flag, struct thread *td ) 751{ 752 bktr_ptr_t bktr; 753 int unit; 754 755 unit = UNIT(minor(dev)); 756 757 /* Get the device data */ 758 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 759 if (bktr == NULL) { 760 /* the device is no longer valid/functioning */ 761 return (ENXIO); 762 } 763 764 if (bktr->bigbuf == 0) /* no frame buffer allocated (ioctl failed) */ 765 return( ENOMEM ); 766 767 switch ( FUNCTION( minor(dev) ) ) { 768 case VIDEO_DEV: 769 return( video_ioctl( bktr, unit, cmd, arg, td ) ); 770 case TUNER_DEV: 771 return( tuner_ioctl( bktr, unit, cmd, arg, td ) ); 772 } 773 774 return( ENXIO ); 775} 776 777 778/* 779 * 780 */ 781static int 782bktr_mmap( struct cdev *dev, vm_offset_t offset, vm_paddr_t *paddr, int nprot ) 783{ 784 int unit; 785 bktr_ptr_t bktr; 786 787 unit = UNIT(minor(dev)); 788 789 if (FUNCTION(minor(dev)) > 0) /* only allow mmap on /dev/bktr[n] */ 790 return( -1 ); 791 792 /* Get the device data */ 793 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 794 if (bktr == NULL) { 795 /* the device is no longer valid/functioning */ 796 return (ENXIO); 797 } 798 799 if (nprot & PROT_EXEC) 800 return( -1 ); 801 802 if (offset < 0) 803 return( -1 ); 804 805 if (offset >= bktr->alloc_pages * PAGE_SIZE) 806 return( -1 ); 807 808 *paddr = vtophys(bktr->bigbuf) + offset; 809 return( 0 ); 810} 811 812static int 813bktr_poll( struct cdev *dev, int events, struct thread *td) 814{ 815 int unit; 816 bktr_ptr_t bktr; 817 int revents = 0; 818 DECLARE_INTR_MASK(s); 819 820 unit = UNIT(minor(dev)); 821 822 /* Get the device data */ 823 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 824 if (bktr == NULL) { 825 /* the device is no longer valid/functioning */ 826 return (ENXIO); 827 } 828 829 LOCK_VBI(bktr); 830 DISABLE_INTR(s); 831 832 if (events & (POLLIN | POLLRDNORM)) { 833 834 switch ( FUNCTION( minor(dev) ) ) { 835 case VBI_DEV: 836 if(bktr->vbisize == 0) 837 selrecord(td, &bktr->vbi_select); 838 else 839 revents |= events & (POLLIN | POLLRDNORM); 840 break; 841 } 842 } 843 844 ENABLE_INTR(s); 845 UNLOCK_VBI(bktr); 846 847 return (revents); 848} 849 850/*****************/ 851/* *** BSDI *** */ 852/*****************/ 853 854#if defined(__bsdi__) 855#endif /* __bsdi__ BSDI specific kernel interface routines */ 856 857 858/*****************************/ 859/* *** OpenBSD / NetBSD *** */ 860/*****************************/ 861#if defined(__NetBSD__) || defined(__OpenBSD__) 862 863#define IPL_VIDEO IPL_BIO /* XXX */ 864 865static int bktr_intr(void *arg) { return common_bktr_intr(arg); } 866 867#define bktr_open bktropen 868#define bktr_close bktrclose 869#define bktr_read bktrread 870#define bktr_write bktrwrite 871#define bktr_ioctl bktrioctl 872#define bktr_mmap bktrmmap 873 874vm_offset_t vm_page_alloc_contig(vm_offset_t, vm_offset_t, 875 vm_offset_t, vm_offset_t); 876 877#if defined(__OpenBSD__) 878static int bktr_probe(struct device *, void *, void *); 879#else 880static int bktr_probe(struct device *, struct cfdata *, void *); 881#endif 882static void bktr_attach(struct device *, struct device *, void *); 883 884struct cfattach bktr_ca = { 885 sizeof(struct bktr_softc), bktr_probe, bktr_attach 886}; 887 888#if defined(__NetBSD__) 889extern struct cfdriver bktr_cd; 890#else 891struct cfdriver bktr_cd = { 892 NULL, "bktr", DV_DULL 893}; 894#endif 895 896int 897bktr_probe(parent, match, aux) 898 struct device *parent; 899#if defined(__OpenBSD__) 900 void *match; 901#else 902 struct cfdata *match; 903#endif 904 void *aux; 905{ 906 struct pci_attach_args *pa = aux; 907 908 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_BROOKTREE && 909 (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT848 || 910 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT849 || 911 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT878 || 912 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT879)) 913 return 1; 914 915 return 0; 916} 917 918 919/* 920 * the attach routine. 921 */ 922static void 923bktr_attach(struct device *parent, struct device *self, void *aux) 924{ 925 bktr_ptr_t bktr; 926 u_long latency; 927 u_long fun; 928 unsigned int rev; 929 930#if defined(__OpenBSD__) 931 struct pci_attach_args *pa = aux; 932 pci_chipset_tag_t pc = pa->pa_pc; 933 934 pci_intr_handle_t ih; 935 const char *intrstr; 936 int retval; 937 int unit; 938 939 bktr = (bktr_ptr_t)self; 940 unit = bktr->bktr_dev.dv_unit; 941 942 bktr->pc = pa->pa_pc; 943 bktr->tag = pa->pa_tag; 944 bktr->dmat = pa->pa_dmat; 945 946 /* 947 * map memory 948 */ 949 bktr->memt = pa->pa_memt; 950 retval = pci_mem_find(pc, pa->pa_tag, PCI_MAPREG_START, 951 &bktr->phys_base, &bktr->obmemsz, NULL); 952 if (!retval) 953 retval = bus_space_map(pa->pa_memt, bktr->phys_base, 954 bktr->obmemsz, 0, &bktr->memh); 955 if (retval) { 956 printf(": couldn't map memory\n"); 957 return; 958 } 959 960 961 /* 962 * map interrupt 963 */ 964 if (pci_intr_map(pa->pa_pc, pa->pa_intrtag, pa->pa_intrpin, 965 pa->pa_intrline, &ih)) { 966 printf(": couldn't map interrupt\n"); 967 return; 968 } 969 intrstr = pci_intr_string(pa->pa_pc, ih); 970 971 bktr->ih = pci_intr_establish(pa->pa_pc, ih, IPL_VIDEO, 972 bktr_intr, bktr, bktr->bktr_dev.dv_xname); 973 if (bktr->ih == NULL) { 974 printf(": couldn't establish interrupt"); 975 if (intrstr != NULL) 976 printf(" at %s", intrstr); 977 printf("\n"); 978 return; 979 } 980 981 if (intrstr != NULL) 982 printf(": %s\n", intrstr); 983#endif /* __OpenBSD__ */ 984 985#if defined(__NetBSD__) 986 struct pci_attach_args *pa = aux; 987 pci_intr_handle_t ih; 988 const char *intrstr; 989 int retval; 990 int unit; 991 992 bktr = (bktr_ptr_t)self; 993 unit = bktr->bktr_dev.dv_unit; 994 bktr->dmat = pa->pa_dmat; 995 996 printf("\n"); 997 998 /* 999 * map memory 1000 */ 1001 retval = pci_mapreg_map(pa, PCI_MAPREG_START, 1002 PCI_MAPREG_TYPE_MEM 1003 | PCI_MAPREG_MEM_TYPE_32BIT, 0, 1004 &bktr->memt, &bktr->memh, NULL, 1005 &bktr->obmemsz); 1006 DPR(("pci_mapreg_map: memt %x, memh %x, size %x\n", 1007 bktr->memt, (u_int)bktr->memh, (u_int)bktr->obmemsz)); 1008 if (retval) { 1009 printf("%s: couldn't map memory\n", bktr_name(bktr)); 1010 return; 1011 } 1012 1013 /* 1014 * Disable the brooktree device 1015 */ 1016 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED); 1017 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED); 1018 1019 /* 1020 * map interrupt 1021 */ 1022 if (pci_intr_map(pa->pa_pc, pa->pa_intrtag, pa->pa_intrpin, 1023 pa->pa_intrline, &ih)) { 1024 printf("%s: couldn't map interrupt\n", 1025 bktr_name(bktr)); 1026 return; 1027 } 1028 intrstr = pci_intr_string(pa->pa_pc, ih); 1029 bktr->ih = pci_intr_establish(pa->pa_pc, ih, IPL_VIDEO, 1030 bktr_intr, bktr); 1031 if (bktr->ih == NULL) { 1032 printf("%s: couldn't establish interrupt", 1033 bktr_name(bktr)); 1034 if (intrstr != NULL) 1035 printf(" at %s", intrstr); 1036 printf("\n"); 1037 return; 1038 } 1039 if (intrstr != NULL) 1040 printf("%s: interrupting at %s\n", bktr_name(bktr), 1041 intrstr); 1042#endif /* __NetBSD__ */ 1043 1044/* 1045 * PCI latency timer. 32 is a good value for 4 bus mastering slots, if 1046 * you have more than four, then 16 would probably be a better value. 1047 */ 1048#ifndef BROOKTREE_DEF_LATENCY_VALUE 1049#define BROOKTREE_DEF_LATENCY_VALUE 10 1050#endif 1051 latency = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_LATENCY_TIMER); 1052 latency = (latency >> 8) & 0xff; 1053 1054 if (!latency) { 1055 if (bootverbose) { 1056 printf("%s: PCI bus latency was 0 changing to %d", 1057 bktr_name(bktr), BROOKTREE_DEF_LATENCY_VALUE); 1058 } 1059 latency = BROOKTREE_DEF_LATENCY_VALUE; 1060 pci_conf_write(pa->pa_pc, pa->pa_tag, 1061 PCI_LATENCY_TIMER, latency<<8); 1062 } 1063 1064 1065 /* Enabled Bus Master 1066 XXX: check if all old DMA is stopped first (e.g. after warm 1067 boot) */ 1068 fun = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); 1069 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, 1070 fun | PCI_COMMAND_MASTER_ENABLE); 1071 1072 /* read the pci id and determine the card type */ 1073 fun = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_ID_REG); 1074 rev = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_CLASS_REG) & 0x000000ff; 1075 1076 common_bktr_attach(bktr, unit, fun, rev); 1077} 1078 1079 1080/* 1081 * Special Memory Allocation 1082 */ 1083vm_offset_t 1084get_bktr_mem(bktr, dmapp, size) 1085 bktr_ptr_t bktr; 1086 bus_dmamap_t *dmapp; 1087 unsigned int size; 1088{ 1089 bus_dma_tag_t dmat = bktr->dmat; 1090 bus_dma_segment_t seg; 1091 bus_size_t align; 1092 int rseg; 1093 caddr_t kva; 1094 1095 /* 1096 * Allocate a DMA area 1097 */ 1098 align = 1 << 24; 1099 if (bus_dmamem_alloc(dmat, size, align, 0, &seg, 1, 1100 &rseg, BUS_DMA_NOWAIT)) { 1101 align = PAGE_SIZE; 1102 if (bus_dmamem_alloc(dmat, size, align, 0, &seg, 1, 1103 &rseg, BUS_DMA_NOWAIT)) { 1104 printf("%s: Unable to dmamem_alloc of %d bytes\n", 1105 bktr_name(bktr), size); 1106 return 0; 1107 } 1108 } 1109 if (bus_dmamem_map(dmat, &seg, rseg, size, 1110 &kva, BUS_DMA_NOWAIT|BUS_DMA_COHERENT)) { 1111 printf("%s: Unable to dmamem_map of %d bytes\n", 1112 bktr_name(bktr), size); 1113 bus_dmamem_free(dmat, &seg, rseg); 1114 return 0; 1115 } 1116#ifdef __OpenBSD__ 1117 bktr->dm_mapsize = size; 1118#endif 1119 /* 1120 * Create and locd the DMA map for the DMA area 1121 */ 1122 if (bus_dmamap_create(dmat, size, 1, size, 0, BUS_DMA_NOWAIT, dmapp)) { 1123 printf("%s: Unable to dmamap_create of %d bytes\n", 1124 bktr_name(bktr), size); 1125 bus_dmamem_unmap(dmat, kva, size); 1126 bus_dmamem_free(dmat, &seg, rseg); 1127 return 0; 1128 } 1129 if (bus_dmamap_load(dmat, *dmapp, kva, size, NULL, BUS_DMA_NOWAIT)) { 1130 printf("%s: Unable to dmamap_load of %d bytes\n", 1131 bktr_name(bktr), size); 1132 bus_dmamem_unmap(dmat, kva, size); 1133 bus_dmamem_free(dmat, &seg, rseg); 1134 bus_dmamap_destroy(dmat, *dmapp); 1135 return 0; 1136 } 1137 return (vm_offset_t)kva; 1138} 1139 1140void 1141free_bktr_mem(bktr, dmap, kva) 1142 bktr_ptr_t bktr; 1143 bus_dmamap_t dmap; 1144 vm_offset_t kva; 1145{ 1146 bus_dma_tag_t dmat = bktr->dmat; 1147 1148#ifdef __NetBSD__ 1149 bus_dmamem_unmap(dmat, (caddr_t)kva, dmap->dm_mapsize); 1150#else 1151 bus_dmamem_unmap(dmat, (caddr_t)kva, bktr->dm_mapsize); 1152#endif 1153 bus_dmamem_free(dmat, dmap->dm_segs, 1); 1154 bus_dmamap_destroy(dmat, dmap); 1155} 1156 1157 1158/*--------------------------------------------------------- 1159** 1160** BrookTree 848 character device driver routines 1161** 1162**--------------------------------------------------------- 1163*/ 1164 1165 1166#define VIDEO_DEV 0x00 1167#define TUNER_DEV 0x01 1168#define VBI_DEV 0x02 1169 1170#define UNIT(x) (minor((x) & 0x0f)) 1171#define FUNCTION(x) (minor((x >> 4) & 0x0f)) 1172 1173/* 1174 * 1175 */ 1176int 1177bktr_open(dev_t dev, int flags, int fmt, struct thread *td) 1178{ 1179 bktr_ptr_t bktr; 1180 int unit; 1181 1182 unit = UNIT(dev); 1183 1184 /* unit out of range */ 1185 if ((unit > bktr_cd.cd_ndevs) || (bktr_cd.cd_devs[unit] == NULL)) 1186 return(ENXIO); 1187 1188 bktr = bktr_cd.cd_devs[unit]; 1189 1190 if (!(bktr->flags & METEOR_INITALIZED)) /* device not found */ 1191 return(ENXIO); 1192 1193 switch (FUNCTION(dev)) { 1194 case VIDEO_DEV: 1195 return(video_open(bktr)); 1196 case TUNER_DEV: 1197 return(tuner_open(bktr)); 1198 case VBI_DEV: 1199 return(vbi_open(bktr)); 1200 } 1201 1202 return(ENXIO); 1203} 1204 1205 1206/* 1207 * 1208 */ 1209int 1210bktr_close(dev_t dev, int flags, int fmt, struct thread *td) 1211{ 1212 bktr_ptr_t bktr; 1213 int unit; 1214 1215 unit = UNIT(dev); 1216 1217 bktr = bktr_cd.cd_devs[unit]; 1218 1219 switch (FUNCTION(dev)) { 1220 case VIDEO_DEV: 1221 return(video_close(bktr)); 1222 case TUNER_DEV: 1223 return(tuner_close(bktr)); 1224 case VBI_DEV: 1225 return(vbi_close(bktr)); 1226 } 1227 1228 return(ENXIO); 1229} 1230 1231/* 1232 * 1233 */ 1234int 1235bktr_read(dev_t dev, struct uio *uio, int ioflag) 1236{ 1237 bktr_ptr_t bktr; 1238 int unit; 1239 1240 unit = UNIT(dev); 1241 1242 bktr = bktr_cd.cd_devs[unit]; 1243 1244 switch (FUNCTION(dev)) { 1245 case VIDEO_DEV: 1246 return(video_read(bktr, unit, dev, uio)); 1247 case VBI_DEV: 1248 return(vbi_read(bktr, uio, ioflag)); 1249 } 1250 1251 return(ENXIO); 1252} 1253 1254 1255/* 1256 * 1257 */ 1258int 1259bktr_write(dev_t dev, struct uio *uio, int ioflag) 1260{ 1261 /* operation not supported */ 1262 return(EOPNOTSUPP); 1263} 1264 1265/* 1266 * 1267 */ 1268int 1269bktr_ioctl(dev_t dev, ioctl_cmd_t cmd, caddr_t arg, int flag, struct thread *td) 1270{ 1271 bktr_ptr_t bktr; 1272 int unit; 1273 1274 unit = UNIT(dev); 1275 1276 bktr = bktr_cd.cd_devs[unit]; 1277 1278 if (bktr->bigbuf == 0) /* no frame buffer allocated (ioctl failed) */ 1279 return(ENOMEM); 1280 1281 switch (FUNCTION(dev)) { 1282 case VIDEO_DEV: 1283 return(video_ioctl(bktr, unit, cmd, arg, pr)); 1284 case TUNER_DEV: 1285 return(tuner_ioctl(bktr, unit, cmd, arg, pr)); 1286 } 1287 1288 return(ENXIO); 1289} 1290 1291/* 1292 * 1293 */ 1294paddr_t 1295bktr_mmap(dev_t dev, off_t offset, int nprot) 1296{ 1297 int unit; 1298 bktr_ptr_t bktr; 1299 1300 unit = UNIT(dev); 1301 1302 if (FUNCTION(dev) > 0) /* only allow mmap on /dev/bktr[n] */ 1303 return(-1); 1304 1305 bktr = bktr_cd.cd_devs[unit]; 1306 1307 if ((vaddr_t)offset < 0) 1308 return(-1); 1309 1310 if ((vaddr_t)offset >= bktr->alloc_pages * PAGE_SIZE) 1311 return(-1); 1312 1313#ifdef __NetBSD__ 1314 return (bus_dmamem_mmap(bktr->dmat, bktr->dm_mem->dm_segs, 1, 1315 (vaddr_t)offset, nprot, BUS_DMA_WAITOK)); 1316#else 1317 return(i386_btop(vtophys(bktr->bigbuf) + offset)); 1318#endif 1319} 1320 1321#endif /* __NetBSD__ || __OpenBSD__ */ 1322