bktr_os.c revision 201223
170566Sobrien/*- 270566Sobrien * 1. Redistributions of source code must retain the 370566Sobrien * Copyright (c) 1997 Amancio Hasty, 1999 Roger Hardiman 470566Sobrien * All rights reserved. 570566Sobrien * 670566Sobrien * Redistribution and use in source and binary forms, with or without 770566Sobrien * modification, are permitted provided that the following conditions 870566Sobrien * are met: 970566Sobrien * 1. Redistributions of source code must retain the above copyright 1070566Sobrien * notice, this list of conditions and the following disclaimer. 1170566Sobrien * 2. Redistributions in binary form must reproduce the above copyright 1270566Sobrien * notice, this list of conditions and the following disclaimer in the 1370566Sobrien * documentation and/or other materials provided with the distribution. 1470566Sobrien * 3. All advertising materials mentioning features or use of this software 1570566Sobrien * must display the following acknowledgement: 1670566Sobrien * This product includes software developed by Amancio Hasty and 1770566Sobrien * Roger Hardiman 1870566Sobrien * 4. The name of the author may not be used to endorse or promote products 1970566Sobrien * derived from this software without specific prior written permission. 2070566Sobrien * 2170566Sobrien * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR 2270566Sobrien * IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED 2370566Sobrien * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE 2470566Sobrien * DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, 2570566Sobrien * INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES 2670566Sobrien * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR 2770566Sobrien * SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 2870566Sobrien * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, 2970566Sobrien * STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN 3070566Sobrien * ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 3170566Sobrien * POSSIBILITY OF SUCH DAMAGE. 3270566Sobrien */ 3370566Sobrien 3470566Sobrien#include <sys/cdefs.h> 3570566Sobrien__FBSDID("$FreeBSD: head/sys/dev/bktr/bktr_os.c 201223 2009-12-29 21:51:28Z rnoland $"); 3670566Sobrien 3770566Sobrien/* 3870566Sobrien * This is part of the Driver for Video Capture Cards (Frame grabbers) 39209945Snwhitehorn * and TV Tuner cards using the Brooktree Bt848, Bt848A, Bt849A, Bt878, Bt879 40209945Snwhitehorn * chipset. 41209945Snwhitehorn * Copyright Roger Hardiman and Amancio Hasty. 42209945Snwhitehorn * 43209945Snwhitehorn * bktr_os : This has all the Operating System dependant code, 44209945Snwhitehorn * probe/attach and open/close/ioctl/read/mmap 45209945Snwhitehorn * memory allocation 46209945Snwhitehorn * PCI bus interfacing 4770566Sobrien */ 48209945Snwhitehorn 4970566Sobrien#include "opt_bktr.h" /* include any kernel config options */ 5070566Sobrien 51209945Snwhitehorn#define FIFO_RISC_DISABLED 0 52209945Snwhitehorn#define ALL_INTS_DISABLED 0 53209945Snwhitehorn 54209945Snwhitehorn 5570566Sobrien/*******************/ 56209945Snwhitehorn/* *** FreeBSD *** */ 5770566Sobrien/*******************/ 58209945Snwhitehorn#ifdef __FreeBSD__ 5970566Sobrien 6070566Sobrien#include <sys/param.h> 6170566Sobrien#include <sys/systm.h> 6270566Sobrien#include <sys/conf.h> 6370566Sobrien#include <sys/uio.h> 6470566Sobrien#include <sys/kernel.h> 6570566Sobrien#include <sys/module.h> 6670566Sobrien#include <sys/signalvar.h> 6770566Sobrien#include <sys/malloc.h> 6870566Sobrien#include <sys/mman.h> 6970566Sobrien#include <sys/poll.h> 7070566Sobrien#if __FreeBSD_version >= 500014 7170566Sobrien#include <sys/selinfo.h> 7270566Sobrien#else 7370566Sobrien#include <sys/select.h> 7470566Sobrien#endif 7570566Sobrien 76209945Snwhitehorn#include <vm/vm.h> 77209945Snwhitehorn#include <vm/vm_kern.h> 78209945Snwhitehorn#include <vm/pmap.h> 79209945Snwhitehorn#include <vm/vm_extern.h> 80209945Snwhitehorn 81209945Snwhitehorn#include <sys/bus.h> /* used by smbus and newbus */ 82209945Snwhitehorn 83209945Snwhitehorn#include <machine/bus.h> /* used by bus space and newbus */ 84209945Snwhitehorn#include <sys/bus.h> 8570566Sobrien 8670566Sobrien#include <sys/rman.h> /* used by newbus */ 8770566Sobrien#include <machine/resource.h> /* used by newbus */ 8870566Sobrien 8970566Sobrien#if (__FreeBSD_version < 500000) 9070566Sobrien#include <machine/clock.h> /* for DELAY */ 9170566Sobrien#include <pci/pcivar.h> 9270566Sobrien#include <pci/pcireg.h> 9370566Sobrien#else 9470566Sobrien#include <dev/pci/pcivar.h> 9570566Sobrien#include <dev/pci/pcireg.h> 9670566Sobrien#endif 9770566Sobrien 9870566Sobrien#include <sys/sysctl.h> 9970566Sobrienint bt848_card = -1; 10070566Sobrienint bt848_tuner = -1; 101189926Skibint bt848_reverse_mute = -1; 102211412Skibint bt848_format = -1; 103211412Skibint bt848_slow_msp_audio = -1; 104211412Skib#ifdef BKTR_NEW_MSP34XX_DRIVER 105211412Skibint bt848_stereo_once = 0; /* no continuous stereo monitoring */ 106211412Skibint bt848_amsound = 0; /* hard-wire AM sound at 6.5 Hz (france), 107211412Skib the autoscan seems work well only with FM... */ 108217097Skibint bt848_dolby = 0; 109237753Skib#endif 11070566Sobrien 111237753SkibSYSCTL_NODE(_hw, OID_AUTO, bt848, CTLFLAG_RW, 0, "Bt848 Driver mgmt"); 11270566SobrienSYSCTL_INT(_hw_bt848, OID_AUTO, card, CTLFLAG_RW, &bt848_card, -1, ""); 11370566SobrienSYSCTL_INT(_hw_bt848, OID_AUTO, tuner, CTLFLAG_RW, &bt848_tuner, -1, ""); 11470566SobrienSYSCTL_INT(_hw_bt848, OID_AUTO, reverse_mute, CTLFLAG_RW, &bt848_reverse_mute, -1, ""); 11570566SobrienSYSCTL_INT(_hw_bt848, OID_AUTO, format, CTLFLAG_RW, &bt848_format, -1, ""); 11670566SobrienSYSCTL_INT(_hw_bt848, OID_AUTO, slow_msp_audio, CTLFLAG_RW, &bt848_slow_msp_audio, -1, ""); 11770566Sobrien#ifdef BKTR_NEW_MSP34XX_DRIVER 11870566SobrienSYSCTL_INT(_hw_bt848, OID_AUTO, stereo_once, CTLFLAG_RW, &bt848_stereo_once, 0, ""); 11970566SobrienSYSCTL_INT(_hw_bt848, OID_AUTO, amsound, CTLFLAG_RW, &bt848_amsound, 0, ""); 12070566SobrienSYSCTL_INT(_hw_bt848, OID_AUTO, dolby, CTLFLAG_RW, &bt848_dolby, 0, ""); 12170566Sobrien#endif 12270566Sobrien 123209945Snwhitehorn#endif /* end freebsd section */ 124209945Snwhitehorn 125209945Snwhitehorn 126209945Snwhitehorn 127209945Snwhitehorn/****************/ 128209945Snwhitehorn/* *** BSDI *** */ 12970566Sobrien/****************/ 13070566Sobrien#ifdef __bsdi__ 13170566Sobrien#endif /* __bsdi__ */ 13270566Sobrien 133209945Snwhitehorn 13470566Sobrien/**************************/ 135197933Skib/* *** OpenBSD/NetBSD *** */ 136197933Skib/**************************/ 13770566Sobrien#if defined(__NetBSD__) || defined(__OpenBSD__) 138 139#include <sys/param.h> 140#include <sys/systm.h> 141#include <sys/conf.h> 142#include <sys/uio.h> 143#include <sys/kernel.h> 144#include <sys/signalvar.h> 145#include <sys/mman.h> 146#include <sys/poll.h> 147#include <sys/select.h> 148#include <sys/vnode.h> 149 150#include <vm/vm.h> 151 152#include <dev/bktr/ioctl_bt848.h> /* extensions to ioctl_meteor.h */ 153 154#ifndef __NetBSD__ 155#include <vm/vm_kern.h> 156#include <vm/pmap.h> 157#include <vm/vm_extern.h> 158#endif 159 160#include <sys/device.h> 161#include <dev/pci/pcivar.h> 162#include <dev/pci/pcireg.h> 163#include <dev/pci/pcidevs.h> 164 165#define BKTR_DEBUG 166#ifdef BKTR_DEBUG 167int bktr_debug = 0; 168#define DPR(x) (bktr_debug ? printf x : 0) 169#else 170#define DPR(x) 171#endif 172#endif /* __NetBSD__ || __OpenBSD__ */ 173 174 175#ifdef __NetBSD__ 176#include <dev/ic/bt8xx.h> /* NetBSD location for .h files */ 177#include <dev/pci/bktr/bktr_reg.h> 178#include <dev/pci/bktr/bktr_tuner.h> 179#include <dev/pci/bktr/bktr_card.h> 180#include <dev/pci/bktr/bktr_audio.h> 181#include <dev/pci/bktr/bktr_core.h> 182#include <dev/pci/bktr/bktr_os.h> 183#else /* Traditional location for .h files */ 184#include <dev/bktr/ioctl_meteor.h> 185#include <dev/bktr/ioctl_bt848.h> /* extensions to ioctl_meteor.h */ 186#include <dev/bktr/bktr_reg.h> 187#include <dev/bktr/bktr_tuner.h> 188#include <dev/bktr/bktr_card.h> 189#include <dev/bktr/bktr_audio.h> 190#include <dev/bktr/bktr_core.h> 191#include <dev/bktr/bktr_os.h> 192 193#if defined(BKTR_USE_FREEBSD_SMBUS) 194#include <dev/bktr/bktr_i2c.h> 195 196#include "iicbb_if.h" 197#include "smbus_if.h" 198#endif 199#endif 200 201 202/****************************/ 203/* *** FreeBSD 4.x code *** */ 204/****************************/ 205 206static int bktr_probe( device_t dev ); 207static int bktr_attach( device_t dev ); 208static int bktr_detach( device_t dev ); 209static int bktr_shutdown( device_t dev ); 210static void bktr_intr(void *arg) { common_bktr_intr(arg); } 211 212static device_method_t bktr_methods[] = { 213 /* Device interface */ 214 DEVMETHOD(device_probe, bktr_probe), 215 DEVMETHOD(device_attach, bktr_attach), 216 DEVMETHOD(device_detach, bktr_detach), 217 DEVMETHOD(device_shutdown, bktr_shutdown), 218 219#if defined(BKTR_USE_FREEBSD_SMBUS) 220 /* iicbb interface */ 221 DEVMETHOD(iicbb_callback, bti2c_iic_callback), 222 DEVMETHOD(iicbb_setsda, bti2c_iic_setsda), 223 DEVMETHOD(iicbb_setscl, bti2c_iic_setscl), 224 DEVMETHOD(iicbb_getsda, bti2c_iic_getsda), 225 DEVMETHOD(iicbb_getscl, bti2c_iic_getscl), 226 DEVMETHOD(iicbb_reset, bti2c_iic_reset), 227 228 /* smbus interface */ 229 DEVMETHOD(smbus_callback, bti2c_smb_callback), 230 DEVMETHOD(smbus_writeb, bti2c_smb_writeb), 231 DEVMETHOD(smbus_writew, bti2c_smb_writew), 232 DEVMETHOD(smbus_readb, bti2c_smb_readb), 233#endif 234 235 { 0, 0 } 236}; 237 238static driver_t bktr_driver = { 239 "bktr", 240 bktr_methods, 241 sizeof(struct bktr_softc), 242}; 243 244static devclass_t bktr_devclass; 245 246static d_open_t bktr_open; 247static d_close_t bktr_close; 248static d_read_t bktr_read; 249static d_write_t bktr_write; 250static d_ioctl_t bktr_ioctl; 251static d_mmap_t bktr_mmap; 252static d_poll_t bktr_poll; 253 254static struct cdevsw bktr_cdevsw = { 255 .d_version = D_VERSION, 256 .d_flags = D_NEEDGIANT, 257 .d_open = bktr_open, 258 .d_close = bktr_close, 259 .d_read = bktr_read, 260 .d_write = bktr_write, 261 .d_ioctl = bktr_ioctl, 262 .d_poll = bktr_poll, 263 .d_mmap = bktr_mmap, 264 .d_name = "bktr", 265}; 266 267#ifdef BKTR_USE_FREEBSD_SMBUS 268#include <dev/iicbus/iiconf.h> 269#include <dev/smbus/smbconf.h> 270MODULE_DEPEND(bktr, iicbb, IICBB_MINVER, IICBB_MODVER, IICBB_MAXVER); 271MODULE_DEPEND(bktr, iicbus, IICBUS_MINVER, IICBUS_MODVER, IICBUS_MAXVER); 272MODULE_DEPEND(bktr, smbus, SMBUS_MINVER, SMBUS_MODVER, SMBUS_MAXVER); 273#endif 274DRIVER_MODULE(bktr, pci, bktr_driver, bktr_devclass, 0, 0); 275MODULE_DEPEND(bktr, bktr_mem, 1,1,1); 276MODULE_VERSION(bktr, 1); 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 BUS_PROBE_DEFAULT; 297 case PCI_PRODUCT_BROOKTREE_BT849: 298 device_set_desc(dev, "BrookTree 849A"); 299 return BUS_PROBE_DEFAULT; 300 case PCI_PRODUCT_BROOKTREE_BT878: 301 device_set_desc(dev, "BrookTree 878"); 302 return BUS_PROBE_DEFAULT; 303 case PCI_PRODUCT_BROOKTREE_BT879: 304 device_set_desc(dev, "BrookTree 879"); 305 return BUS_PROBE_DEFAULT; 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_any(dev, SYS_RES_MEMORY, 348 &bktr->mem_rid, RF_ACTIVE); 349 350 if (!bktr->res_mem) { 351 device_printf(dev, "could not map memory\n"); 352 error = ENXIO; 353 goto fail; 354 } 355 bktr->memt = rman_get_bustag(bktr->res_mem); 356 bktr->memh = rman_get_bushandle(bktr->res_mem); 357 358 359 /* 360 * Disable the brooktree device 361 */ 362 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED); 363 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED); 364 365 366#ifdef BROOKTREE_IRQ /* from the configuration file */ 367 old_irq = pci_conf_read(tag, PCI_INTERRUPT_REG); 368 pci_conf_write(tag, PCI_INTERRUPT_REG, BROOKTREE_IRQ); 369 new_irq = pci_conf_read(tag, PCI_INTERRUPT_REG); 370 printf("bktr%d: attach: irq changed from %d to %d\n", 371 unit, (old_irq & 0xff), (new_irq & 0xff)); 372#endif 373 374 /* 375 * Allocate our interrupt. 376 */ 377 bktr->irq_rid = 0; 378 bktr->res_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, 379 &bktr->irq_rid, RF_SHAREABLE | RF_ACTIVE); 380 if (bktr->res_irq == NULL) { 381 device_printf(dev, "could not map interrupt\n"); 382 error = ENXIO; 383 goto fail; 384 } 385 386 error = bus_setup_intr(dev, bktr->res_irq, INTR_TYPE_TTY, 387 NULL, bktr_intr, bktr, &bktr->res_ih); 388 if (error) { 389 device_printf(dev, "could not setup irq\n"); 390 goto fail; 391 392 } 393 394 395 /* Update the Device Control Register */ 396 /* on Bt878 and Bt879 cards */ 397 fun = pci_read_config( dev, 0x40, 2); 398 fun = fun | 1; /* Enable writes to the sub-system vendor ID */ 399 400#if defined( BKTR_430_FX_MODE ) 401 if (bootverbose) printf("Using 430 FX chipset compatibilty mode\n"); 402 fun = fun | 2; /* Enable Intel 430 FX compatibility mode */ 403#endif 404 405#if defined( BKTR_SIS_VIA_MODE ) 406 if (bootverbose) printf("Using SiS/VIA chipset compatibilty mode\n"); 407 fun = fun | 4; /* Enable SiS/VIA compatibility mode (usefull for 408 OPTi chipset motherboards too */ 409#endif 410 pci_write_config(dev, 0x40, fun, 2); 411 412#if defined(BKTR_USE_FREEBSD_SMBUS) 413 if (bt848_i2c_attach(dev)) 414 printf("bktr%d: i2c_attach: can't attach\n", unit); 415#endif 416 417/* 418 * PCI latency timer. 32 is a good value for 4 bus mastering slots, if 419 * you have more than four, then 16 would probably be a better value. 420 */ 421#ifndef BROOKTREE_DEF_LATENCY_VALUE 422#define BROOKTREE_DEF_LATENCY_VALUE 10 423#endif 424 latency = pci_read_config(dev, PCI_LATENCY_TIMER, 4); 425 latency = (latency >> 8) & 0xff; 426 if ( bootverbose ) { 427 if (latency) 428 printf("brooktree%d: PCI bus latency is", unit); 429 else 430 printf("brooktree%d: PCI bus latency was 0 changing to", 431 unit); 432 } 433 if ( !latency ) { 434 latency = BROOKTREE_DEF_LATENCY_VALUE; 435 pci_write_config(dev, PCI_LATENCY_TIMER, latency<<8, 4); 436 } 437 if ( bootverbose ) { 438 printf(" %d.\n", (int) latency); 439 } 440 441 /* read the pci device id and revision id */ 442 fun = pci_get_devid(dev); 443 rev = pci_get_revid(dev); 444 445 /* call the common attach code */ 446 common_bktr_attach( bktr, unit, fun, rev ); 447 448 /* make the device entries */ 449 bktr->bktrdev = make_dev(&bktr_cdevsw, unit, 450 0, 0, 0444, "bktr%d", unit); 451 bktr->tunerdev= make_dev(&bktr_cdevsw, unit+16, 452 0, 0, 0444, "tuner%d", unit); 453 bktr->vbidev = make_dev(&bktr_cdevsw, unit+32, 454 0, 0, 0444, "vbi%d" , unit); 455 456 457 /* if this is unit 0 (/dev/bktr0, /dev/tuner0, /dev/vbi0) then make */ 458 /* alias entries to /dev/bktr /dev/tuner and /dev/vbi */ 459#if (__FreeBSD_version >=500000) 460 if (unit == 0) { 461 bktr->bktrdev_alias = make_dev_alias(bktr->bktrdev, "bktr"); 462 bktr->tunerdev_alias= make_dev_alias(bktr->tunerdev, "tuner"); 463 bktr->vbidev_alias = make_dev_alias(bktr->vbidev, "vbi"); 464 } 465#endif 466 467 return 0; 468 469fail: 470 if (bktr->res_irq) 471 bus_release_resource(dev, SYS_RES_IRQ, bktr->irq_rid, bktr->res_irq); 472 if (bktr->res_mem) 473 bus_release_resource(dev, SYS_RES_MEMORY, bktr->mem_rid, bktr->res_mem); 474 return error; 475 476} 477 478/* 479 * the detach routine. 480 */ 481static int 482bktr_detach( device_t dev ) 483{ 484 struct bktr_softc *bktr = device_get_softc(dev); 485 486#ifdef BKTR_NEW_MSP34XX_DRIVER 487 /* Disable the soundchip and kernel thread */ 488 if (bktr->msp3400c_info != NULL) 489 msp_detach(bktr); 490#endif 491 492 /* Disable the brooktree device */ 493 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED); 494 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED); 495 496#if defined(BKTR_USE_FREEBSD_SMBUS) 497 if (bt848_i2c_detach(dev)) 498 printf("bktr%d: i2c_attach: can't attach\n", 499 device_get_unit(dev)); 500#endif 501#ifdef USE_VBIMUTEX 502 mtx_destroy(&bktr->vbimutex); 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_offset_t)contigmalloc(size, M_DEVBUF, M_NOWAIT, 0, 550 0xffffffff, 1<<24, 0); 551 if (addr == 0) 552 addr = (vm_offset_t)contigmalloc(size, M_DEVBUF, M_NOWAIT, 0, 553 0xffffffff, PAGE_SIZE, 0); 554 if (addr == 0) { 555 printf("bktr%d: Unable to allocate %d bytes of memory.\n", 556 unit, size); 557 } 558 559 return( addr ); 560} 561 562 563/*--------------------------------------------------------- 564** 565** BrookTree 848 character device driver routines 566** 567**--------------------------------------------------------- 568*/ 569 570#define VIDEO_DEV 0x00 571#define TUNER_DEV 0x01 572#define VBI_DEV 0x02 573 574#define UNIT(x) ((x) & 0x0f) 575#define FUNCTION(x) (x >> 4) 576 577/* 578 * 579 */ 580static int 581bktr_open( struct cdev *dev, int flags, int fmt, struct thread *td ) 582{ 583 bktr_ptr_t bktr; 584 int unit; 585 int result; 586 587 unit = UNIT( dev2unit(dev) ); 588 589 /* Get the device data */ 590 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 591 if (bktr == NULL) { 592 /* the device is no longer valid/functioning */ 593 return (ENXIO); 594 } 595 596 if (!(bktr->flags & METEOR_INITALIZED)) /* device not found */ 597 return( ENXIO ); 598 599 /* Record that the device is now busy */ 600 device_busy(devclass_get_device(bktr_devclass, unit)); 601 602 603 if (bt848_card != -1) { 604 if ((bt848_card >> 8 == unit ) && 605 ( (bt848_card & 0xff) < Bt848_MAX_CARD )) { 606 if ( bktr->bt848_card != (bt848_card & 0xff) ) { 607 bktr->bt848_card = (bt848_card & 0xff); 608 probeCard(bktr, FALSE, unit); 609 } 610 } 611 } 612 613 if (bt848_tuner != -1) { 614 if ((bt848_tuner >> 8 == unit ) && 615 ( (bt848_tuner & 0xff) < Bt848_MAX_TUNER )) { 616 if ( bktr->bt848_tuner != (bt848_tuner & 0xff) ) { 617 bktr->bt848_tuner = (bt848_tuner & 0xff); 618 probeCard(bktr, FALSE, unit); 619 } 620 } 621 } 622 623 if (bt848_reverse_mute != -1) { 624 if ((bt848_reverse_mute >> 8) == unit ) { 625 bktr->reverse_mute = bt848_reverse_mute & 0xff; 626 } 627 } 628 629 if (bt848_slow_msp_audio != -1) { 630 if ((bt848_slow_msp_audio >> 8) == unit ) { 631 bktr->slow_msp_audio = (bt848_slow_msp_audio & 0xff); 632 } 633 } 634 635#ifdef BKTR_NEW_MSP34XX_DRIVER 636 if (bt848_stereo_once != 0) { 637 if ((bt848_stereo_once >> 8) == unit ) { 638 bktr->stereo_once = (bt848_stereo_once & 0xff); 639 } 640 } 641 642 if (bt848_amsound != -1) { 643 if ((bt848_amsound >> 8) == unit ) { 644 bktr->amsound = (bt848_amsound & 0xff); 645 } 646 } 647 648 if (bt848_dolby != -1) { 649 if ((bt848_dolby >> 8) == unit ) { 650 bktr->dolby = (bt848_dolby & 0xff); 651 } 652 } 653#endif 654 655 switch ( FUNCTION( dev2unit(dev) ) ) { 656 case VIDEO_DEV: 657 result = video_open( bktr ); 658 break; 659 case TUNER_DEV: 660 result = tuner_open( bktr ); 661 break; 662 case VBI_DEV: 663 result = vbi_open( bktr ); 664 break; 665 default: 666 result = ENXIO; 667 break; 668 } 669 670 /* If there was an error opening the device, undo the busy status */ 671 if (result != 0) 672 device_unbusy(devclass_get_device(bktr_devclass, unit)); 673 return( result ); 674} 675 676 677/* 678 * 679 */ 680static int 681bktr_close( struct cdev *dev, int flags, int fmt, struct thread *td ) 682{ 683 bktr_ptr_t bktr; 684 int unit; 685 int result; 686 687 unit = UNIT( dev2unit(dev) ); 688 689 /* Get the device data */ 690 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 691 if (bktr == NULL) { 692 /* the device is no longer valid/functioning */ 693 return (ENXIO); 694 } 695 696 switch ( FUNCTION( dev2unit(dev) ) ) { 697 case VIDEO_DEV: 698 result = video_close( bktr ); 699 break; 700 case TUNER_DEV: 701 result = tuner_close( bktr ); 702 break; 703 case VBI_DEV: 704 result = vbi_close( bktr ); 705 break; 706 default: 707 return (ENXIO); 708 break; 709 } 710 711 device_unbusy(devclass_get_device(bktr_devclass, unit)); 712 return( result ); 713} 714 715 716/* 717 * 718 */ 719static int 720bktr_read( struct cdev *dev, struct uio *uio, int ioflag ) 721{ 722 bktr_ptr_t bktr; 723 int unit; 724 725 unit = UNIT(dev2unit(dev)); 726 727 /* Get the device data */ 728 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 729 if (bktr == NULL) { 730 /* the device is no longer valid/functioning */ 731 return (ENXIO); 732 } 733 734 switch ( FUNCTION( dev2unit(dev) ) ) { 735 case VIDEO_DEV: 736 return( video_read( bktr, unit, dev, uio ) ); 737 case VBI_DEV: 738 return( vbi_read( bktr, uio, ioflag ) ); 739 } 740 return( ENXIO ); 741} 742 743 744/* 745 * 746 */ 747static int 748bktr_write( struct cdev *dev, struct uio *uio, int ioflag ) 749{ 750 return( EINVAL ); /* XXX or ENXIO ? */ 751} 752 753 754/* 755 * 756 */ 757static int 758bktr_ioctl( struct cdev *dev, ioctl_cmd_t cmd, caddr_t arg, int flag, struct thread *td ) 759{ 760 bktr_ptr_t bktr; 761 int unit; 762 763 unit = UNIT(dev2unit(dev)); 764 765 /* Get the device data */ 766 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 767 if (bktr == NULL) { 768 /* the device is no longer valid/functioning */ 769 return (ENXIO); 770 } 771 772#ifdef BKTR_GPIO_ACCESS 773 if (bktr->bigbuf == 0 && cmd != BT848_GPIO_GET_EN && 774 cmd != BT848_GPIO_SET_EN && cmd != BT848_GPIO_GET_DATA && 775 cmd != BT848_GPIO_SET_DATA) /* no frame buffer allocated (ioctl failed) */ 776 return( ENOMEM ); 777#else 778 if (bktr->bigbuf == 0) /* no frame buffer allocated (ioctl failed) */ 779 return( ENOMEM ); 780#endif 781 782 switch ( FUNCTION( dev2unit(dev) ) ) { 783 case VIDEO_DEV: 784 return( video_ioctl( bktr, unit, cmd, arg, td ) ); 785 case TUNER_DEV: 786 return( tuner_ioctl( bktr, unit, cmd, arg, td ) ); 787 } 788 789 return( ENXIO ); 790} 791 792 793/* 794 * 795 */ 796static int 797bktr_mmap( struct cdev *dev, vm_ooffset_t offset, vm_paddr_t *paddr, 798 int nprot, vm_memattr_t *memattr ) 799{ 800 int unit; 801 bktr_ptr_t bktr; 802 803 unit = UNIT(dev2unit(dev)); 804 805 if (FUNCTION(dev2unit(dev)) > 0) /* only allow mmap on /dev/bktr[n] */ 806 return( -1 ); 807 808 /* Get the device data */ 809 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 810 if (bktr == NULL) { 811 /* the device is no longer valid/functioning */ 812 return (ENXIO); 813 } 814 815 if (nprot & PROT_EXEC) 816 return( -1 ); 817 818 if (offset < 0) 819 return( -1 ); 820 821 if (offset >= bktr->alloc_pages * PAGE_SIZE) 822 return( -1 ); 823 824 *paddr = vtophys(bktr->bigbuf) + offset; 825 return( 0 ); 826} 827 828static int 829bktr_poll( struct cdev *dev, int events, struct thread *td) 830{ 831 int unit; 832 bktr_ptr_t bktr; 833 int revents = 0; 834 DECLARE_INTR_MASK(s); 835 836 unit = UNIT(dev2unit(dev)); 837 838 /* Get the device data */ 839 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 840 if (bktr == NULL) { 841 /* the device is no longer valid/functioning */ 842 return (ENXIO); 843 } 844 845 LOCK_VBI(bktr); 846 DISABLE_INTR(s); 847 848 if (events & (POLLIN | POLLRDNORM)) { 849 850 switch ( FUNCTION( dev2unit(dev) ) ) { 851 case VBI_DEV: 852 if(bktr->vbisize == 0) 853 selrecord(td, &bktr->vbi_select); 854 else 855 revents |= events & (POLLIN | POLLRDNORM); 856 break; 857 } 858 } 859 860 ENABLE_INTR(s); 861 UNLOCK_VBI(bktr); 862 863 return (revents); 864} 865 866/*****************/ 867/* *** BSDI *** */ 868/*****************/ 869 870#if defined(__bsdi__) 871#endif /* __bsdi__ BSDI specific kernel interface routines */ 872 873 874/*****************************/ 875/* *** OpenBSD / NetBSD *** */ 876/*****************************/ 877#if defined(__NetBSD__) || defined(__OpenBSD__) 878 879#define IPL_VIDEO IPL_BIO /* XXX */ 880 881static int bktr_intr(void *arg) { return common_bktr_intr(arg); } 882 883#define bktr_open bktropen 884#define bktr_close bktrclose 885#define bktr_read bktrread 886#define bktr_write bktrwrite 887#define bktr_ioctl bktrioctl 888#define bktr_mmap bktrmmap 889 890vm_offset_t vm_page_alloc_contig(vm_offset_t, vm_offset_t, 891 vm_offset_t, vm_offset_t); 892 893#if defined(__OpenBSD__) 894static int bktr_probe(struct device *, void *, void *); 895#else 896static int bktr_probe(struct device *, struct cfdata *, void *); 897#endif 898static void bktr_attach(struct device *, struct device *, void *); 899 900struct cfattach bktr_ca = { 901 sizeof(struct bktr_softc), bktr_probe, bktr_attach 902}; 903 904#if defined(__NetBSD__) 905extern struct cfdriver bktr_cd; 906#else 907struct cfdriver bktr_cd = { 908 NULL, "bktr", DV_DULL 909}; 910#endif 911 912int 913bktr_probe(parent, match, aux) 914 struct device *parent; 915#if defined(__OpenBSD__) 916 void *match; 917#else 918 struct cfdata *match; 919#endif 920 void *aux; 921{ 922 struct pci_attach_args *pa = aux; 923 924 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_BROOKTREE && 925 (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT848 || 926 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT849 || 927 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT878 || 928 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT879)) 929 return 1; 930 931 return 0; 932} 933 934 935/* 936 * the attach routine. 937 */ 938static void 939bktr_attach(struct device *parent, struct device *self, void *aux) 940{ 941 bktr_ptr_t bktr; 942 u_long latency; 943 u_long fun; 944 unsigned int rev; 945 946#if defined(__OpenBSD__) 947 struct pci_attach_args *pa = aux; 948 pci_chipset_tag_t pc = pa->pa_pc; 949 950 pci_intr_handle_t ih; 951 const char *intrstr; 952 int retval; 953 int unit; 954 955 bktr = (bktr_ptr_t)self; 956 unit = bktr->bktr_dev.dv_unit; 957 958 bktr->pc = pa->pa_pc; 959 bktr->tag = pa->pa_tag; 960 bktr->dmat = pa->pa_dmat; 961 962 /* 963 * map memory 964 */ 965 bktr->memt = pa->pa_memt; 966 retval = pci_mem_find(pc, pa->pa_tag, PCI_MAPREG_START, 967 &bktr->phys_base, &bktr->obmemsz, NULL); 968 if (!retval) 969 retval = bus_space_map(pa->pa_memt, bktr->phys_base, 970 bktr->obmemsz, 0, &bktr->memh); 971 if (retval) { 972 printf(": couldn't map memory\n"); 973 return; 974 } 975 976 977 /* 978 * map interrupt 979 */ 980 if (pci_intr_map(pa->pa_pc, pa->pa_intrtag, pa->pa_intrpin, 981 pa->pa_intrline, &ih)) { 982 printf(": couldn't map interrupt\n"); 983 return; 984 } 985 intrstr = pci_intr_string(pa->pa_pc, ih); 986 987 bktr->ih = pci_intr_establish(pa->pa_pc, ih, IPL_VIDEO, 988 bktr_intr, bktr, bktr->bktr_dev.dv_xname); 989 if (bktr->ih == NULL) { 990 printf(": couldn't establish interrupt"); 991 if (intrstr != NULL) 992 printf(" at %s", intrstr); 993 printf("\n"); 994 return; 995 } 996 997 if (intrstr != NULL) 998 printf(": %s\n", intrstr); 999#endif /* __OpenBSD__ */ 1000 1001#if defined(__NetBSD__) 1002 struct pci_attach_args *pa = aux; 1003 pci_intr_handle_t ih; 1004 const char *intrstr; 1005 int retval; 1006 int unit; 1007 1008 bktr = (bktr_ptr_t)self; 1009 unit = bktr->bktr_dev.dv_unit; 1010 bktr->dmat = pa->pa_dmat; 1011 1012 printf("\n"); 1013 1014 /* 1015 * map memory 1016 */ 1017 retval = pci_mapreg_map(pa, PCI_MAPREG_START, 1018 PCI_MAPREG_TYPE_MEM 1019 | PCI_MAPREG_MEM_TYPE_32BIT, 0, 1020 &bktr->memt, &bktr->memh, NULL, 1021 &bktr->obmemsz); 1022 DPR(("pci_mapreg_map: memt %x, memh %x, size %x\n", 1023 bktr->memt, (u_int)bktr->memh, (u_int)bktr->obmemsz)); 1024 if (retval) { 1025 printf("%s: couldn't map memory\n", bktr_name(bktr)); 1026 return; 1027 } 1028 1029 /* 1030 * Disable the brooktree device 1031 */ 1032 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED); 1033 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED); 1034 1035 /* 1036 * map interrupt 1037 */ 1038 if (pci_intr_map(pa->pa_pc, pa->pa_intrtag, pa->pa_intrpin, 1039 pa->pa_intrline, &ih)) { 1040 printf("%s: couldn't map interrupt\n", 1041 bktr_name(bktr)); 1042 return; 1043 } 1044 intrstr = pci_intr_string(pa->pa_pc, ih); 1045 bktr->ih = pci_intr_establish(pa->pa_pc, ih, IPL_VIDEO, 1046 bktr_intr, bktr); 1047 if (bktr->ih == NULL) { 1048 printf("%s: couldn't establish interrupt", 1049 bktr_name(bktr)); 1050 if (intrstr != NULL) 1051 printf(" at %s", intrstr); 1052 printf("\n"); 1053 return; 1054 } 1055 if (intrstr != NULL) 1056 printf("%s: interrupting at %s\n", bktr_name(bktr), 1057 intrstr); 1058#endif /* __NetBSD__ */ 1059 1060/* 1061 * PCI latency timer. 32 is a good value for 4 bus mastering slots, if 1062 * you have more than four, then 16 would probably be a better value. 1063 */ 1064#ifndef BROOKTREE_DEF_LATENCY_VALUE 1065#define BROOKTREE_DEF_LATENCY_VALUE 10 1066#endif 1067 latency = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_LATENCY_TIMER); 1068 latency = (latency >> 8) & 0xff; 1069 1070 if (!latency) { 1071 if (bootverbose) { 1072 printf("%s: PCI bus latency was 0 changing to %d", 1073 bktr_name(bktr), BROOKTREE_DEF_LATENCY_VALUE); 1074 } 1075 latency = BROOKTREE_DEF_LATENCY_VALUE; 1076 pci_conf_write(pa->pa_pc, pa->pa_tag, 1077 PCI_LATENCY_TIMER, latency<<8); 1078 } 1079 1080 1081 /* Enabled Bus Master 1082 XXX: check if all old DMA is stopped first (e.g. after warm 1083 boot) */ 1084 fun = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); 1085 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, 1086 fun | PCI_COMMAND_MASTER_ENABLE); 1087 1088 /* read the pci id and determine the card type */ 1089 fun = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_ID_REG); 1090 rev = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_CLASS_REG) & 0x000000ff; 1091 1092 common_bktr_attach(bktr, unit, fun, rev); 1093} 1094 1095 1096/* 1097 * Special Memory Allocation 1098 */ 1099vm_offset_t 1100get_bktr_mem(bktr, dmapp, size) 1101 bktr_ptr_t bktr; 1102 bus_dmamap_t *dmapp; 1103 unsigned int size; 1104{ 1105 bus_dma_tag_t dmat = bktr->dmat; 1106 bus_dma_segment_t seg; 1107 bus_size_t align; 1108 int rseg; 1109 caddr_t kva; 1110 1111 /* 1112 * Allocate a DMA area 1113 */ 1114 align = 1 << 24; 1115 if (bus_dmamem_alloc(dmat, size, align, 0, &seg, 1, 1116 &rseg, BUS_DMA_NOWAIT)) { 1117 align = PAGE_SIZE; 1118 if (bus_dmamem_alloc(dmat, size, align, 0, &seg, 1, 1119 &rseg, BUS_DMA_NOWAIT)) { 1120 printf("%s: Unable to dmamem_alloc of %d bytes\n", 1121 bktr_name(bktr), size); 1122 return 0; 1123 } 1124 } 1125 if (bus_dmamem_map(dmat, &seg, rseg, size, 1126 &kva, BUS_DMA_NOWAIT|BUS_DMA_COHERENT)) { 1127 printf("%s: Unable to dmamem_map of %d bytes\n", 1128 bktr_name(bktr), size); 1129 bus_dmamem_free(dmat, &seg, rseg); 1130 return 0; 1131 } 1132#ifdef __OpenBSD__ 1133 bktr->dm_mapsize = size; 1134#endif 1135 /* 1136 * Create and locd the DMA map for the DMA area 1137 */ 1138 if (bus_dmamap_create(dmat, size, 1, size, 0, BUS_DMA_NOWAIT, dmapp)) { 1139 printf("%s: Unable to dmamap_create of %d bytes\n", 1140 bktr_name(bktr), size); 1141 bus_dmamem_unmap(dmat, kva, size); 1142 bus_dmamem_free(dmat, &seg, rseg); 1143 return 0; 1144 } 1145 if (bus_dmamap_load(dmat, *dmapp, kva, size, NULL, BUS_DMA_NOWAIT)) { 1146 printf("%s: Unable to dmamap_load of %d bytes\n", 1147 bktr_name(bktr), size); 1148 bus_dmamem_unmap(dmat, kva, size); 1149 bus_dmamem_free(dmat, &seg, rseg); 1150 bus_dmamap_destroy(dmat, *dmapp); 1151 return 0; 1152 } 1153 return (vm_offset_t)kva; 1154} 1155 1156void 1157free_bktr_mem(bktr, dmap, kva) 1158 bktr_ptr_t bktr; 1159 bus_dmamap_t dmap; 1160 vm_offset_t kva; 1161{ 1162 bus_dma_tag_t dmat = bktr->dmat; 1163 1164#ifdef __NetBSD__ 1165 bus_dmamem_unmap(dmat, (caddr_t)kva, dmap->dm_mapsize); 1166#else 1167 bus_dmamem_unmap(dmat, (caddr_t)kva, bktr->dm_mapsize); 1168#endif 1169 bus_dmamem_free(dmat, dmap->dm_segs, 1); 1170 bus_dmamap_destroy(dmat, dmap); 1171} 1172 1173 1174/*--------------------------------------------------------- 1175** 1176** BrookTree 848 character device driver routines 1177** 1178**--------------------------------------------------------- 1179*/ 1180 1181 1182#define VIDEO_DEV 0x00 1183#define TUNER_DEV 0x01 1184#define VBI_DEV 0x02 1185 1186#define UNIT(x) (dev2unit((x) & 0x0f)) 1187#define FUNCTION(x) (dev2unit((x >> 4) & 0x0f)) 1188 1189/* 1190 * 1191 */ 1192int 1193bktr_open(dev_t dev, int flags, int fmt, struct thread *td) 1194{ 1195 bktr_ptr_t bktr; 1196 int unit; 1197 1198 unit = UNIT(dev); 1199 1200 /* unit out of range */ 1201 if ((unit > bktr_cd.cd_ndevs) || (bktr_cd.cd_devs[unit] == NULL)) 1202 return(ENXIO); 1203 1204 bktr = bktr_cd.cd_devs[unit]; 1205 1206 if (!(bktr->flags & METEOR_INITALIZED)) /* device not found */ 1207 return(ENXIO); 1208 1209 switch (FUNCTION(dev)) { 1210 case VIDEO_DEV: 1211 return(video_open(bktr)); 1212 case TUNER_DEV: 1213 return(tuner_open(bktr)); 1214 case VBI_DEV: 1215 return(vbi_open(bktr)); 1216 } 1217 1218 return(ENXIO); 1219} 1220 1221 1222/* 1223 * 1224 */ 1225int 1226bktr_close(dev_t dev, int flags, int fmt, struct thread *td) 1227{ 1228 bktr_ptr_t bktr; 1229 int unit; 1230 1231 unit = UNIT(dev); 1232 1233 bktr = bktr_cd.cd_devs[unit]; 1234 1235 switch (FUNCTION(dev)) { 1236 case VIDEO_DEV: 1237 return(video_close(bktr)); 1238 case TUNER_DEV: 1239 return(tuner_close(bktr)); 1240 case VBI_DEV: 1241 return(vbi_close(bktr)); 1242 } 1243 1244 return(ENXIO); 1245} 1246 1247/* 1248 * 1249 */ 1250int 1251bktr_read(dev_t dev, struct uio *uio, int ioflag) 1252{ 1253 bktr_ptr_t bktr; 1254 int unit; 1255 1256 unit = UNIT(dev); 1257 1258 bktr = bktr_cd.cd_devs[unit]; 1259 1260 switch (FUNCTION(dev)) { 1261 case VIDEO_DEV: 1262 return(video_read(bktr, unit, dev, uio)); 1263 case VBI_DEV: 1264 return(vbi_read(bktr, uio, ioflag)); 1265 } 1266 1267 return(ENXIO); 1268} 1269 1270 1271/* 1272 * 1273 */ 1274int 1275bktr_write(dev_t dev, struct uio *uio, int ioflag) 1276{ 1277 /* operation not supported */ 1278 return(EOPNOTSUPP); 1279} 1280 1281/* 1282 * 1283 */ 1284int 1285bktr_ioctl(dev_t dev, ioctl_cmd_t cmd, caddr_t arg, int flag, struct thread *td) 1286{ 1287 bktr_ptr_t bktr; 1288 int unit; 1289 1290 unit = UNIT(dev); 1291 1292 bktr = bktr_cd.cd_devs[unit]; 1293 1294 if (bktr->bigbuf == 0) /* no frame buffer allocated (ioctl failed) */ 1295 return(ENOMEM); 1296 1297 switch (FUNCTION(dev)) { 1298 case VIDEO_DEV: 1299 return(video_ioctl(bktr, unit, cmd, arg, pr)); 1300 case TUNER_DEV: 1301 return(tuner_ioctl(bktr, unit, cmd, arg, pr)); 1302 } 1303 1304 return(ENXIO); 1305} 1306 1307/* 1308 * 1309 */ 1310paddr_t 1311bktr_mmap(dev_t dev, off_t offset, int nprot) 1312{ 1313 int unit; 1314 bktr_ptr_t bktr; 1315 1316 unit = UNIT(dev); 1317 1318 if (FUNCTION(dev) > 0) /* only allow mmap on /dev/bktr[n] */ 1319 return(-1); 1320 1321 bktr = bktr_cd.cd_devs[unit]; 1322 1323 if ((vaddr_t)offset < 0) 1324 return(-1); 1325 1326 if ((vaddr_t)offset >= bktr->alloc_pages * PAGE_SIZE) 1327 return(-1); 1328 1329#ifdef __NetBSD__ 1330 return (bus_dmamem_mmap(bktr->dmat, bktr->dm_mem->dm_segs, 1, 1331 (vaddr_t)offset, nprot, BUS_DMA_WAITOK)); 1332#else 1333 return(i386_btop(vtophys(bktr->bigbuf) + offset)); 1334#endif 1335} 1336 1337#endif /* __NetBSD__ || __OpenBSD__ */ 1338