bktr_os.c revision 139917
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 139917 2005-01-08 22:43:33Z 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#if (__FreeBSD_version >=400000) 82#include <sys/bus.h> /* used by smbus and newbus */ 83#endif 84 85#if (__FreeBSD_version >=300000) 86#include <machine/bus_memio.h> /* used by bus space */ 87#include <machine/bus.h> /* used by bus space and newbus */ 88#include <sys/bus.h> 89#endif 90 91#if (__FreeBSD_version >=400000) 92#include <sys/rman.h> /* used by newbus */ 93#include <machine/resource.h> /* used by newbus */ 94#endif 95 96#if (__FreeBSD_version < 500000) 97#include <machine/clock.h> /* for DELAY */ 98#include <pci/pcivar.h> 99#include <pci/pcireg.h> 100#else 101#include <dev/pci/pcivar.h> 102#include <dev/pci/pcireg.h> 103#endif 104 105#include <sys/sysctl.h> 106int bt848_card = -1; 107int bt848_tuner = -1; 108int bt848_reverse_mute = -1; 109int bt848_format = -1; 110int bt848_slow_msp_audio = -1; 111#ifdef BKTR_NEW_MSP34XX_DRIVER 112int bt848_stereo_once = 0; /* no continuous stereo monitoring */ 113int bt848_amsound = 0; /* hard-wire AM sound at 6.5 Hz (france), 114 the autoscan seems work well only with FM... */ 115int bt848_dolby = 0; 116#endif 117 118SYSCTL_NODE(_hw, OID_AUTO, bt848, CTLFLAG_RW, 0, "Bt848 Driver mgmt"); 119SYSCTL_INT(_hw_bt848, OID_AUTO, card, CTLFLAG_RW, &bt848_card, -1, ""); 120SYSCTL_INT(_hw_bt848, OID_AUTO, tuner, CTLFLAG_RW, &bt848_tuner, -1, ""); 121SYSCTL_INT(_hw_bt848, OID_AUTO, reverse_mute, CTLFLAG_RW, &bt848_reverse_mute, -1, ""); 122SYSCTL_INT(_hw_bt848, OID_AUTO, format, CTLFLAG_RW, &bt848_format, -1, ""); 123SYSCTL_INT(_hw_bt848, OID_AUTO, slow_msp_audio, CTLFLAG_RW, &bt848_slow_msp_audio, -1, ""); 124#ifdef BKTR_NEW_MSP34XX_DRIVER 125SYSCTL_INT(_hw_bt848, OID_AUTO, stereo_once, CTLFLAG_RW, &bt848_stereo_once, 0, ""); 126SYSCTL_INT(_hw_bt848, OID_AUTO, amsound, CTLFLAG_RW, &bt848_amsound, 0, ""); 127SYSCTL_INT(_hw_bt848, OID_AUTO, dolby, CTLFLAG_RW, &bt848_dolby, 0, ""); 128#endif 129 130#endif /* end freebsd section */ 131 132 133 134/****************/ 135/* *** BSDI *** */ 136/****************/ 137#ifdef __bsdi__ 138#endif /* __bsdi__ */ 139 140 141/**************************/ 142/* *** OpenBSD/NetBSD *** */ 143/**************************/ 144#if defined(__NetBSD__) || defined(__OpenBSD__) 145 146#include <sys/param.h> 147#include <sys/systm.h> 148#include <sys/conf.h> 149#include <sys/uio.h> 150#include <sys/kernel.h> 151#include <sys/signalvar.h> 152#include <sys/mman.h> 153#include <sys/poll.h> 154#include <sys/select.h> 155#include <sys/vnode.h> 156 157#include <vm/vm.h> 158 159#ifndef __NetBSD__ 160#include <vm/vm_kern.h> 161#include <vm/pmap.h> 162#include <vm/vm_extern.h> 163#endif 164 165#include <sys/device.h> 166#include <dev/pci/pcivar.h> 167#include <dev/pci/pcireg.h> 168#include <dev/pci/pcidevs.h> 169 170#define BKTR_DEBUG 171#ifdef BKTR_DEBUG 172int bktr_debug = 0; 173#define DPR(x) (bktr_debug ? printf x : 0) 174#else 175#define DPR(x) 176#endif 177#endif /* __NetBSD__ || __OpenBSD__ */ 178 179 180#ifdef __NetBSD__ 181#include <dev/ic/bt8xx.h> /* NetBSD location for .h files */ 182#include <dev/pci/bktr/bktr_reg.h> 183#include <dev/pci/bktr/bktr_tuner.h> 184#include <dev/pci/bktr/bktr_card.h> 185#include <dev/pci/bktr/bktr_audio.h> 186#include <dev/pci/bktr/bktr_core.h> 187#include <dev/pci/bktr/bktr_os.h> 188#else /* Traditional location for .h files */ 189#include <dev/bktr/ioctl_meteor.h> 190#include <dev/bktr/ioctl_bt848.h> /* extensions to ioctl_meteor.h */ 191#include <dev/bktr/bktr_reg.h> 192#include <dev/bktr/bktr_tuner.h> 193#include <dev/bktr/bktr_card.h> 194#include <dev/bktr/bktr_audio.h> 195#include <dev/bktr/bktr_core.h> 196#include <dev/bktr/bktr_os.h> 197 198#if defined(BKTR_USE_FREEBSD_SMBUS) 199#include <dev/bktr/bktr_i2c.h> 200 201#include "iicbb_if.h" 202#include "smbus_if.h" 203#endif 204#endif 205 206 207/****************************/ 208/* *** FreeBSD 4.x code *** */ 209/****************************/ 210#if (__FreeBSD_version >= 400000) 211 212static int bktr_probe( device_t dev ); 213static int bktr_attach( device_t dev ); 214static int bktr_detach( device_t dev ); 215static int bktr_shutdown( device_t dev ); 216static void bktr_intr(void *arg) { common_bktr_intr(arg); } 217 218static device_method_t bktr_methods[] = { 219 /* Device interface */ 220 DEVMETHOD(device_probe, bktr_probe), 221 DEVMETHOD(device_attach, bktr_attach), 222 DEVMETHOD(device_detach, bktr_detach), 223 DEVMETHOD(device_shutdown, bktr_shutdown), 224 225#if defined(BKTR_USE_FREEBSD_SMBUS) 226 /* iicbb interface */ 227 DEVMETHOD(iicbb_callback, bti2c_iic_callback), 228 DEVMETHOD(iicbb_setsda, bti2c_iic_setsda), 229 DEVMETHOD(iicbb_setscl, bti2c_iic_setscl), 230 DEVMETHOD(iicbb_getsda, bti2c_iic_getsda), 231 DEVMETHOD(iicbb_getscl, bti2c_iic_getscl), 232 DEVMETHOD(iicbb_reset, bti2c_iic_reset), 233 234 /* smbus interface */ 235 DEVMETHOD(smbus_callback, bti2c_smb_callback), 236 DEVMETHOD(smbus_writeb, bti2c_smb_writeb), 237 DEVMETHOD(smbus_writew, bti2c_smb_writew), 238 DEVMETHOD(smbus_readb, bti2c_smb_readb), 239#endif 240 241 { 0, 0 } 242}; 243 244static driver_t bktr_driver = { 245 "bktr", 246 bktr_methods, 247 sizeof(struct bktr_softc), 248}; 249 250static devclass_t bktr_devclass; 251 252static d_open_t bktr_open; 253static d_close_t bktr_close; 254static d_read_t bktr_read; 255static d_write_t bktr_write; 256static d_ioctl_t bktr_ioctl; 257static d_mmap_t bktr_mmap; 258static d_poll_t bktr_poll; 259 260static struct cdevsw bktr_cdevsw = { 261 .d_version = D_VERSION, 262 .d_flags = D_NEEDGIANT, 263 .d_open = bktr_open, 264 .d_close = bktr_close, 265 .d_read = bktr_read, 266 .d_write = bktr_write, 267 .d_ioctl = bktr_ioctl, 268 .d_poll = bktr_poll, 269 .d_mmap = bktr_mmap, 270 .d_name = "bktr", 271}; 272 273DRIVER_MODULE(bktr, pci, bktr_driver, bktr_devclass, 0, 0); 274#if (__FreeBSD_version > 410000) 275MODULE_DEPEND(bktr, bktr_mem, 1,1,1); 276MODULE_VERSION(bktr, 1); 277#endif 278 279 280/* 281 * the boot time probe routine. 282 */ 283static int 284bktr_probe( device_t dev ) 285{ 286 unsigned int type = pci_get_devid(dev); 287 unsigned int rev = pci_get_revid(dev); 288 289 if (PCI_VENDOR(type) == PCI_VENDOR_BROOKTREE) 290 { 291 switch (PCI_PRODUCT(type)) { 292 case PCI_PRODUCT_BROOKTREE_BT848: 293 if (rev == 0x12) 294 device_set_desc(dev, "BrookTree 848A"); 295 else 296 device_set_desc(dev, "BrookTree 848"); 297 return 0; 298 case PCI_PRODUCT_BROOKTREE_BT849: 299 device_set_desc(dev, "BrookTree 849A"); 300 return 0; 301 case PCI_PRODUCT_BROOKTREE_BT878: 302 device_set_desc(dev, "BrookTree 878"); 303 return 0; 304 case PCI_PRODUCT_BROOKTREE_BT879: 305 device_set_desc(dev, "BrookTree 879"); 306 return 0; 307 } 308 }; 309 310 return ENXIO; 311} 312 313 314/* 315 * the attach routine. 316 */ 317static int 318bktr_attach( device_t dev ) 319{ 320 u_long latency; 321 u_long fun; 322 u_long val; 323 unsigned int rev; 324 unsigned int unit; 325 int error = 0; 326#ifdef BROOKTREE_IRQ 327 u_long old_irq, new_irq; 328#endif 329 330 struct bktr_softc *bktr = device_get_softc(dev); 331 332 unit = device_get_unit(dev); 333 334 /* build the device name for bktr_name() */ 335 snprintf(bktr->bktr_xname, sizeof(bktr->bktr_xname), "bktr%d",unit); 336 337 /* 338 * Enable bus mastering and Memory Mapped device 339 */ 340 val = pci_read_config(dev, PCIR_COMMAND, 4); 341 val |= (PCIM_CMD_MEMEN|PCIM_CMD_BUSMASTEREN); 342 pci_write_config(dev, PCIR_COMMAND, val, 4); 343 344 /* 345 * Map control/status registers. 346 */ 347 bktr->mem_rid = PCIR_BAR(0); 348 bktr->res_mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, 349 &bktr->mem_rid, RF_ACTIVE); 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_any(dev, SYS_RES_IRQ, 380 &bktr->irq_rid, 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_offset_t)contigmalloc(size, M_DEVBUF, M_NOWAIT, 0, 551 0xffffffff, 1<<24, 0); 552 if (addr == 0) 553 addr = (vm_offset_t)contigmalloc(size, M_DEVBUF, M_NOWAIT, 0, 554 0xffffffff, PAGE_SIZE, 0); 555 if (addr == 0) { 556 printf("bktr%d: Unable to allocate %d bytes of memory.\n", 557 unit, size); 558 } 559 560 return( addr ); 561} 562 563 564/*--------------------------------------------------------- 565** 566** BrookTree 848 character device driver routines 567** 568**--------------------------------------------------------- 569*/ 570 571#define VIDEO_DEV 0x00 572#define TUNER_DEV 0x01 573#define VBI_DEV 0x02 574 575#define UNIT(x) ((x) & 0x0f) 576#define FUNCTION(x) (x >> 4) 577 578/* 579 * 580 */ 581static int 582bktr_open( struct cdev *dev, int flags, int fmt, struct thread *td ) 583{ 584 bktr_ptr_t bktr; 585 int unit; 586 int result; 587 588 unit = UNIT( minor(dev) ); 589 590 /* Get the device data */ 591 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 592 if (bktr == NULL) { 593 /* the device is no longer valid/functioning */ 594 return (ENXIO); 595 } 596 597 if (!(bktr->flags & METEOR_INITALIZED)) /* device not found */ 598 return( ENXIO ); 599 600 /* Record that the device is now busy */ 601 device_busy(devclass_get_device(bktr_devclass, unit)); 602 603 604 if (bt848_card != -1) { 605 if ((bt848_card >> 8 == unit ) && 606 ( (bt848_card & 0xff) < Bt848_MAX_CARD )) { 607 if ( bktr->bt848_card != (bt848_card & 0xff) ) { 608 bktr->bt848_card = (bt848_card & 0xff); 609 probeCard(bktr, FALSE, unit); 610 } 611 } 612 } 613 614 if (bt848_tuner != -1) { 615 if ((bt848_tuner >> 8 == unit ) && 616 ( (bt848_tuner & 0xff) < Bt848_MAX_TUNER )) { 617 if ( bktr->bt848_tuner != (bt848_tuner & 0xff) ) { 618 bktr->bt848_tuner = (bt848_tuner & 0xff); 619 probeCard(bktr, FALSE, unit); 620 } 621 } 622 } 623 624 if (bt848_reverse_mute != -1) { 625 if ((bt848_reverse_mute >> 8) == unit ) { 626 bktr->reverse_mute = bt848_reverse_mute & 0xff; 627 } 628 } 629 630 if (bt848_slow_msp_audio != -1) { 631 if ((bt848_slow_msp_audio >> 8) == unit ) { 632 bktr->slow_msp_audio = (bt848_slow_msp_audio & 0xff); 633 } 634 } 635 636#ifdef BKTR_NEW_MSP34XX_DRIVER 637 if (bt848_stereo_once != 0) { 638 if ((bt848_stereo_once >> 8) == unit ) { 639 bktr->stereo_once = (bt848_stereo_once & 0xff); 640 } 641 } 642 643 if (bt848_amsound != -1) { 644 if ((bt848_amsound >> 8) == unit ) { 645 bktr->amsound = (bt848_amsound & 0xff); 646 } 647 } 648 649 if (bt848_dolby != -1) { 650 if ((bt848_dolby >> 8) == unit ) { 651 bktr->dolby = (bt848_dolby & 0xff); 652 } 653 } 654#endif 655 656 switch ( FUNCTION( minor(dev) ) ) { 657 case VIDEO_DEV: 658 result = video_open( bktr ); 659 break; 660 case TUNER_DEV: 661 result = tuner_open( bktr ); 662 break; 663 case VBI_DEV: 664 result = vbi_open( bktr ); 665 break; 666 default: 667 result = ENXIO; 668 break; 669 } 670 671 /* If there was an error opening the device, undo the busy status */ 672 if (result != 0) 673 device_unbusy(devclass_get_device(bktr_devclass, unit)); 674 return( result ); 675} 676 677 678/* 679 * 680 */ 681static int 682bktr_close( struct cdev *dev, int flags, int fmt, struct thread *td ) 683{ 684 bktr_ptr_t bktr; 685 int unit; 686 int result; 687 688 unit = UNIT( minor(dev) ); 689 690 /* Get the device data */ 691 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 692 if (bktr == NULL) { 693 /* the device is no longer valid/functioning */ 694 return (ENXIO); 695 } 696 697 switch ( FUNCTION( minor(dev) ) ) { 698 case VIDEO_DEV: 699 result = video_close( bktr ); 700 break; 701 case TUNER_DEV: 702 result = tuner_close( bktr ); 703 break; 704 case VBI_DEV: 705 result = vbi_close( bktr ); 706 break; 707 default: 708 return (ENXIO); 709 break; 710 } 711 712 device_unbusy(devclass_get_device(bktr_devclass, unit)); 713 return( result ); 714} 715 716 717/* 718 * 719 */ 720static int 721bktr_read( struct cdev *dev, struct uio *uio, int ioflag ) 722{ 723 bktr_ptr_t bktr; 724 int unit; 725 726 unit = UNIT(minor(dev)); 727 728 /* Get the device data */ 729 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 730 if (bktr == NULL) { 731 /* the device is no longer valid/functioning */ 732 return (ENXIO); 733 } 734 735 switch ( FUNCTION( minor(dev) ) ) { 736 case VIDEO_DEV: 737 return( video_read( bktr, unit, dev, uio ) ); 738 case VBI_DEV: 739 return( vbi_read( bktr, uio, ioflag ) ); 740 } 741 return( ENXIO ); 742} 743 744 745/* 746 * 747 */ 748static int 749bktr_write( struct cdev *dev, struct uio *uio, int ioflag ) 750{ 751 return( EINVAL ); /* XXX or ENXIO ? */ 752} 753 754 755/* 756 * 757 */ 758static int 759bktr_ioctl( struct cdev *dev, ioctl_cmd_t cmd, caddr_t arg, int flag, struct thread *td ) 760{ 761 bktr_ptr_t bktr; 762 int unit; 763 764 unit = UNIT(minor(dev)); 765 766 /* Get the device data */ 767 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 768 if (bktr == NULL) { 769 /* the device is no longer valid/functioning */ 770 return (ENXIO); 771 } 772 773 if (bktr->bigbuf == 0) /* no frame buffer allocated (ioctl failed) */ 774 return( ENOMEM ); 775 776 switch ( FUNCTION( minor(dev) ) ) { 777 case VIDEO_DEV: 778 return( video_ioctl( bktr, unit, cmd, arg, td ) ); 779 case TUNER_DEV: 780 return( tuner_ioctl( bktr, unit, cmd, arg, td ) ); 781 } 782 783 return( ENXIO ); 784} 785 786 787/* 788 * 789 */ 790static int 791bktr_mmap( struct cdev *dev, vm_offset_t offset, vm_paddr_t *paddr, int nprot ) 792{ 793 int unit; 794 bktr_ptr_t bktr; 795 796 unit = UNIT(minor(dev)); 797 798 if (FUNCTION(minor(dev)) > 0) /* only allow mmap on /dev/bktr[n] */ 799 return( -1 ); 800 801 /* Get the device data */ 802 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 803 if (bktr == NULL) { 804 /* the device is no longer valid/functioning */ 805 return (ENXIO); 806 } 807 808 if (nprot & PROT_EXEC) 809 return( -1 ); 810 811 if (offset < 0) 812 return( -1 ); 813 814 if (offset >= bktr->alloc_pages * PAGE_SIZE) 815 return( -1 ); 816 817 *paddr = vtophys(bktr->bigbuf) + offset; 818 return( 0 ); 819} 820 821static int 822bktr_poll( struct cdev *dev, int events, struct thread *td) 823{ 824 int unit; 825 bktr_ptr_t bktr; 826 int revents = 0; 827 DECLARE_INTR_MASK(s); 828 829 unit = UNIT(minor(dev)); 830 831 /* Get the device data */ 832 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 833 if (bktr == NULL) { 834 /* the device is no longer valid/functioning */ 835 return (ENXIO); 836 } 837 838 LOCK_VBI(bktr); 839 DISABLE_INTR(s); 840 841 if (events & (POLLIN | POLLRDNORM)) { 842 843 switch ( FUNCTION( minor(dev) ) ) { 844 case VBI_DEV: 845 if(bktr->vbisize == 0) 846 selrecord(td, &bktr->vbi_select); 847 else 848 revents |= events & (POLLIN | POLLRDNORM); 849 break; 850 } 851 } 852 853 ENABLE_INTR(s); 854 UNLOCK_VBI(bktr); 855 856 return (revents); 857} 858 859#endif /* FreeBSD 4.x specific kernel interface routines */ 860 861/*****************/ 862/* *** BSDI *** */ 863/*****************/ 864 865#if defined(__bsdi__) 866#endif /* __bsdi__ BSDI specific kernel interface routines */ 867 868 869/*****************************/ 870/* *** OpenBSD / NetBSD *** */ 871/*****************************/ 872#if defined(__NetBSD__) || defined(__OpenBSD__) 873 874#define IPL_VIDEO IPL_BIO /* XXX */ 875 876static int bktr_intr(void *arg) { return common_bktr_intr(arg); } 877 878#define bktr_open bktropen 879#define bktr_close bktrclose 880#define bktr_read bktrread 881#define bktr_write bktrwrite 882#define bktr_ioctl bktrioctl 883#define bktr_mmap bktrmmap 884 885vm_offset_t vm_page_alloc_contig(vm_offset_t, vm_offset_t, 886 vm_offset_t, vm_offset_t); 887 888#if defined(__OpenBSD__) 889static int bktr_probe(struct device *, void *, void *); 890#else 891static int bktr_probe(struct device *, struct cfdata *, void *); 892#endif 893static void bktr_attach(struct device *, struct device *, void *); 894 895struct cfattach bktr_ca = { 896 sizeof(struct bktr_softc), bktr_probe, bktr_attach 897}; 898 899#if defined(__NetBSD__) 900extern struct cfdriver bktr_cd; 901#else 902struct cfdriver bktr_cd = { 903 NULL, "bktr", DV_DULL 904}; 905#endif 906 907int 908bktr_probe(parent, match, aux) 909 struct device *parent; 910#if defined(__OpenBSD__) 911 void *match; 912#else 913 struct cfdata *match; 914#endif 915 void *aux; 916{ 917 struct pci_attach_args *pa = aux; 918 919 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_BROOKTREE && 920 (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT848 || 921 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT849 || 922 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT878 || 923 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT879)) 924 return 1; 925 926 return 0; 927} 928 929 930/* 931 * the attach routine. 932 */ 933static void 934bktr_attach(struct device *parent, struct device *self, void *aux) 935{ 936 bktr_ptr_t bktr; 937 u_long latency; 938 u_long fun; 939 unsigned int rev; 940 941#if defined(__OpenBSD__) 942 struct pci_attach_args *pa = aux; 943 pci_chipset_tag_t pc = pa->pa_pc; 944 945 pci_intr_handle_t ih; 946 const char *intrstr; 947 int retval; 948 int unit; 949 950 bktr = (bktr_ptr_t)self; 951 unit = bktr->bktr_dev.dv_unit; 952 953 bktr->pc = pa->pa_pc; 954 bktr->tag = pa->pa_tag; 955 bktr->dmat = pa->pa_dmat; 956 957 /* 958 * map memory 959 */ 960 bktr->memt = pa->pa_memt; 961 retval = pci_mem_find(pc, pa->pa_tag, PCI_MAPREG_START, 962 &bktr->phys_base, &bktr->obmemsz, NULL); 963 if (!retval) 964 retval = bus_space_map(pa->pa_memt, bktr->phys_base, 965 bktr->obmemsz, 0, &bktr->memh); 966 if (retval) { 967 printf(": couldn't map memory\n"); 968 return; 969 } 970 971 972 /* 973 * map interrupt 974 */ 975 if (pci_intr_map(pa->pa_pc, pa->pa_intrtag, pa->pa_intrpin, 976 pa->pa_intrline, &ih)) { 977 printf(": couldn't map interrupt\n"); 978 return; 979 } 980 intrstr = pci_intr_string(pa->pa_pc, ih); 981 982 bktr->ih = pci_intr_establish(pa->pa_pc, ih, IPL_VIDEO, 983 bktr_intr, bktr, bktr->bktr_dev.dv_xname); 984 if (bktr->ih == NULL) { 985 printf(": couldn't establish interrupt"); 986 if (intrstr != NULL) 987 printf(" at %s", intrstr); 988 printf("\n"); 989 return; 990 } 991 992 if (intrstr != NULL) 993 printf(": %s\n", intrstr); 994#endif /* __OpenBSD__ */ 995 996#if defined(__NetBSD__) 997 struct pci_attach_args *pa = aux; 998 pci_intr_handle_t ih; 999 const char *intrstr; 1000 int retval; 1001 int unit; 1002 1003 bktr = (bktr_ptr_t)self; 1004 unit = bktr->bktr_dev.dv_unit; 1005 bktr->dmat = pa->pa_dmat; 1006 1007 printf("\n"); 1008 1009 /* 1010 * map memory 1011 */ 1012 retval = pci_mapreg_map(pa, PCI_MAPREG_START, 1013 PCI_MAPREG_TYPE_MEM 1014 | PCI_MAPREG_MEM_TYPE_32BIT, 0, 1015 &bktr->memt, &bktr->memh, NULL, 1016 &bktr->obmemsz); 1017 DPR(("pci_mapreg_map: memt %x, memh %x, size %x\n", 1018 bktr->memt, (u_int)bktr->memh, (u_int)bktr->obmemsz)); 1019 if (retval) { 1020 printf("%s: couldn't map memory\n", bktr_name(bktr)); 1021 return; 1022 } 1023 1024 /* 1025 * Disable the brooktree device 1026 */ 1027 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED); 1028 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED); 1029 1030 /* 1031 * map interrupt 1032 */ 1033 if (pci_intr_map(pa->pa_pc, pa->pa_intrtag, pa->pa_intrpin, 1034 pa->pa_intrline, &ih)) { 1035 printf("%s: couldn't map interrupt\n", 1036 bktr_name(bktr)); 1037 return; 1038 } 1039 intrstr = pci_intr_string(pa->pa_pc, ih); 1040 bktr->ih = pci_intr_establish(pa->pa_pc, ih, IPL_VIDEO, 1041 bktr_intr, bktr); 1042 if (bktr->ih == NULL) { 1043 printf("%s: couldn't establish interrupt", 1044 bktr_name(bktr)); 1045 if (intrstr != NULL) 1046 printf(" at %s", intrstr); 1047 printf("\n"); 1048 return; 1049 } 1050 if (intrstr != NULL) 1051 printf("%s: interrupting at %s\n", bktr_name(bktr), 1052 intrstr); 1053#endif /* __NetBSD__ */ 1054 1055/* 1056 * PCI latency timer. 32 is a good value for 4 bus mastering slots, if 1057 * you have more than four, then 16 would probably be a better value. 1058 */ 1059#ifndef BROOKTREE_DEF_LATENCY_VALUE 1060#define BROOKTREE_DEF_LATENCY_VALUE 10 1061#endif 1062 latency = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_LATENCY_TIMER); 1063 latency = (latency >> 8) & 0xff; 1064 1065 if (!latency) { 1066 if (bootverbose) { 1067 printf("%s: PCI bus latency was 0 changing to %d", 1068 bktr_name(bktr), BROOKTREE_DEF_LATENCY_VALUE); 1069 } 1070 latency = BROOKTREE_DEF_LATENCY_VALUE; 1071 pci_conf_write(pa->pa_pc, pa->pa_tag, 1072 PCI_LATENCY_TIMER, latency<<8); 1073 } 1074 1075 1076 /* Enabled Bus Master 1077 XXX: check if all old DMA is stopped first (e.g. after warm 1078 boot) */ 1079 fun = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); 1080 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, 1081 fun | PCI_COMMAND_MASTER_ENABLE); 1082 1083 /* read the pci id and determine the card type */ 1084 fun = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_ID_REG); 1085 rev = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_CLASS_REG) & 0x000000ff; 1086 1087 common_bktr_attach(bktr, unit, fun, rev); 1088} 1089 1090 1091/* 1092 * Special Memory Allocation 1093 */ 1094vm_offset_t 1095get_bktr_mem(bktr, dmapp, size) 1096 bktr_ptr_t bktr; 1097 bus_dmamap_t *dmapp; 1098 unsigned int size; 1099{ 1100 bus_dma_tag_t dmat = bktr->dmat; 1101 bus_dma_segment_t seg; 1102 bus_size_t align; 1103 int rseg; 1104 caddr_t kva; 1105 1106 /* 1107 * Allocate a DMA area 1108 */ 1109 align = 1 << 24; 1110 if (bus_dmamem_alloc(dmat, size, align, 0, &seg, 1, 1111 &rseg, BUS_DMA_NOWAIT)) { 1112 align = PAGE_SIZE; 1113 if (bus_dmamem_alloc(dmat, size, align, 0, &seg, 1, 1114 &rseg, BUS_DMA_NOWAIT)) { 1115 printf("%s: Unable to dmamem_alloc of %d bytes\n", 1116 bktr_name(bktr), size); 1117 return 0; 1118 } 1119 } 1120 if (bus_dmamem_map(dmat, &seg, rseg, size, 1121 &kva, BUS_DMA_NOWAIT|BUS_DMA_COHERENT)) { 1122 printf("%s: Unable to dmamem_map of %d bytes\n", 1123 bktr_name(bktr), size); 1124 bus_dmamem_free(dmat, &seg, rseg); 1125 return 0; 1126 } 1127#ifdef __OpenBSD__ 1128 bktr->dm_mapsize = size; 1129#endif 1130 /* 1131 * Create and locd the DMA map for the DMA area 1132 */ 1133 if (bus_dmamap_create(dmat, size, 1, size, 0, BUS_DMA_NOWAIT, dmapp)) { 1134 printf("%s: Unable to dmamap_create of %d bytes\n", 1135 bktr_name(bktr), size); 1136 bus_dmamem_unmap(dmat, kva, size); 1137 bus_dmamem_free(dmat, &seg, rseg); 1138 return 0; 1139 } 1140 if (bus_dmamap_load(dmat, *dmapp, kva, size, NULL, BUS_DMA_NOWAIT)) { 1141 printf("%s: Unable to dmamap_load of %d bytes\n", 1142 bktr_name(bktr), size); 1143 bus_dmamem_unmap(dmat, kva, size); 1144 bus_dmamem_free(dmat, &seg, rseg); 1145 bus_dmamap_destroy(dmat, *dmapp); 1146 return 0; 1147 } 1148 return (vm_offset_t)kva; 1149} 1150 1151void 1152free_bktr_mem(bktr, dmap, kva) 1153 bktr_ptr_t bktr; 1154 bus_dmamap_t dmap; 1155 vm_offset_t kva; 1156{ 1157 bus_dma_tag_t dmat = bktr->dmat; 1158 1159#ifdef __NetBSD__ 1160 bus_dmamem_unmap(dmat, (caddr_t)kva, dmap->dm_mapsize); 1161#else 1162 bus_dmamem_unmap(dmat, (caddr_t)kva, bktr->dm_mapsize); 1163#endif 1164 bus_dmamem_free(dmat, dmap->dm_segs, 1); 1165 bus_dmamap_destroy(dmat, dmap); 1166} 1167 1168 1169/*--------------------------------------------------------- 1170** 1171** BrookTree 848 character device driver routines 1172** 1173**--------------------------------------------------------- 1174*/ 1175 1176 1177#define VIDEO_DEV 0x00 1178#define TUNER_DEV 0x01 1179#define VBI_DEV 0x02 1180 1181#define UNIT(x) (minor((x) & 0x0f)) 1182#define FUNCTION(x) (minor((x >> 4) & 0x0f)) 1183 1184/* 1185 * 1186 */ 1187int 1188bktr_open(dev_t dev, int flags, int fmt, struct thread *td) 1189{ 1190 bktr_ptr_t bktr; 1191 int unit; 1192 1193 unit = UNIT(dev); 1194 1195 /* unit out of range */ 1196 if ((unit > bktr_cd.cd_ndevs) || (bktr_cd.cd_devs[unit] == NULL)) 1197 return(ENXIO); 1198 1199 bktr = bktr_cd.cd_devs[unit]; 1200 1201 if (!(bktr->flags & METEOR_INITALIZED)) /* device not found */ 1202 return(ENXIO); 1203 1204 switch (FUNCTION(dev)) { 1205 case VIDEO_DEV: 1206 return(video_open(bktr)); 1207 case TUNER_DEV: 1208 return(tuner_open(bktr)); 1209 case VBI_DEV: 1210 return(vbi_open(bktr)); 1211 } 1212 1213 return(ENXIO); 1214} 1215 1216 1217/* 1218 * 1219 */ 1220int 1221bktr_close(dev_t dev, int flags, int fmt, struct thread *td) 1222{ 1223 bktr_ptr_t bktr; 1224 int unit; 1225 1226 unit = UNIT(dev); 1227 1228 bktr = bktr_cd.cd_devs[unit]; 1229 1230 switch (FUNCTION(dev)) { 1231 case VIDEO_DEV: 1232 return(video_close(bktr)); 1233 case TUNER_DEV: 1234 return(tuner_close(bktr)); 1235 case VBI_DEV: 1236 return(vbi_close(bktr)); 1237 } 1238 1239 return(ENXIO); 1240} 1241 1242/* 1243 * 1244 */ 1245int 1246bktr_read(dev_t dev, struct uio *uio, int ioflag) 1247{ 1248 bktr_ptr_t bktr; 1249 int unit; 1250 1251 unit = UNIT(dev); 1252 1253 bktr = bktr_cd.cd_devs[unit]; 1254 1255 switch (FUNCTION(dev)) { 1256 case VIDEO_DEV: 1257 return(video_read(bktr, unit, dev, uio)); 1258 case VBI_DEV: 1259 return(vbi_read(bktr, uio, ioflag)); 1260 } 1261 1262 return(ENXIO); 1263} 1264 1265 1266/* 1267 * 1268 */ 1269int 1270bktr_write(dev_t dev, struct uio *uio, int ioflag) 1271{ 1272 /* operation not supported */ 1273 return(EOPNOTSUPP); 1274} 1275 1276/* 1277 * 1278 */ 1279int 1280bktr_ioctl(dev_t dev, ioctl_cmd_t cmd, caddr_t arg, int flag, struct thread *td) 1281{ 1282 bktr_ptr_t bktr; 1283 int unit; 1284 1285 unit = UNIT(dev); 1286 1287 bktr = bktr_cd.cd_devs[unit]; 1288 1289 if (bktr->bigbuf == 0) /* no frame buffer allocated (ioctl failed) */ 1290 return(ENOMEM); 1291 1292 switch (FUNCTION(dev)) { 1293 case VIDEO_DEV: 1294 return(video_ioctl(bktr, unit, cmd, arg, pr)); 1295 case TUNER_DEV: 1296 return(tuner_ioctl(bktr, unit, cmd, arg, pr)); 1297 } 1298 1299 return(ENXIO); 1300} 1301 1302/* 1303 * 1304 */ 1305paddr_t 1306bktr_mmap(dev_t dev, off_t offset, int nprot) 1307{ 1308 int unit; 1309 bktr_ptr_t bktr; 1310 1311 unit = UNIT(dev); 1312 1313 if (FUNCTION(dev) > 0) /* only allow mmap on /dev/bktr[n] */ 1314 return(-1); 1315 1316 bktr = bktr_cd.cd_devs[unit]; 1317 1318 if ((vaddr_t)offset < 0) 1319 return(-1); 1320 1321 if ((vaddr_t)offset >= bktr->alloc_pages * PAGE_SIZE) 1322 return(-1); 1323 1324#ifdef __NetBSD__ 1325 return (bus_dmamem_mmap(bktr->dmat, bktr->dm_mem->dm_segs, 1, 1326 (vaddr_t)offset, nprot, BUS_DMA_WAITOK)); 1327#else 1328 return(i386_btop(vtophys(bktr->bigbuf) + offset)); 1329#endif 1330} 1331 1332#endif /* __NetBSD__ || __OpenBSD__ */ 1333