Now available: The Design and Implementation of the FreeBSD Operating System (Second Edition)
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sys/dev/bktr/bktr_os.c
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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: releng/6.0/sys/dev/bktr/bktr_os.c 146734 2005-05-29 04:42:30Z nyan $"); 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.h> /* used by bus space and newbus */ 84 #include <sys/bus.h> 85 86 #include <sys/rman.h> /* used by newbus */ 87 #include <machine/resource.h> /* used by newbus */ 88 89 #if (__FreeBSD_version < 500000) 90 #include <machine/clock.h> /* for DELAY */ 91 #include <pci/pcivar.h> 92 #include <pci/pcireg.h> 93 #else 94 #include <dev/pci/pcivar.h> 95 #include <dev/pci/pcireg.h> 96 #endif 97 98 #include <sys/sysctl.h> 99 int bt848_card = -1; 100 int bt848_tuner = -1; 101 int bt848_reverse_mute = -1; 102 int bt848_format = -1; 103 int bt848_slow_msp_audio = -1; 104 #ifdef BKTR_NEW_MSP34XX_DRIVER 105 int bt848_stereo_once = 0; /* no continuous stereo monitoring */ 106 int bt848_amsound = 0; /* hard-wire AM sound at 6.5 Hz (france), 107 the autoscan seems work well only with FM... */ 108 int bt848_dolby = 0; 109 #endif 110 111 SYSCTL_NODE(_hw, OID_AUTO, bt848, CTLFLAG_RW, 0, "Bt848 Driver mgmt"); 112 SYSCTL_INT(_hw_bt848, OID_AUTO, card, CTLFLAG_RW, &bt848_card, -1, ""); 113 SYSCTL_INT(_hw_bt848, OID_AUTO, tuner, CTLFLAG_RW, &bt848_tuner, -1, ""); 114 SYSCTL_INT(_hw_bt848, OID_AUTO, reverse_mute, CTLFLAG_RW, &bt848_reverse_mute, -1, ""); 115 SYSCTL_INT(_hw_bt848, OID_AUTO, format, CTLFLAG_RW, &bt848_format, -1, ""); 116 SYSCTL_INT(_hw_bt848, OID_AUTO, slow_msp_audio, CTLFLAG_RW, &bt848_slow_msp_audio, -1, ""); 117 #ifdef BKTR_NEW_MSP34XX_DRIVER 118 SYSCTL_INT(_hw_bt848, OID_AUTO, stereo_once, CTLFLAG_RW, &bt848_stereo_once, 0, ""); 119 SYSCTL_INT(_hw_bt848, OID_AUTO, amsound, CTLFLAG_RW, &bt848_amsound, 0, ""); 120 SYSCTL_INT(_hw_bt848, OID_AUTO, dolby, CTLFLAG_RW, &bt848_dolby, 0, ""); 121 #endif 122 123 #endif /* end freebsd section */ 124 125 126 127 /****************/ 128 /* *** BSDI *** */ 129 /****************/ 130 #ifdef __bsdi__ 131 #endif /* __bsdi__ */ 132 133 134 /**************************/ 135 /* *** OpenBSD/NetBSD *** */ 136 /**************************/ 137 #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 #ifndef __NetBSD__ 153 #include <vm/vm_kern.h> 154 #include <vm/pmap.h> 155 #include <vm/vm_extern.h> 156 #endif 157 158 #include <sys/device.h> 159 #include <dev/pci/pcivar.h> 160 #include <dev/pci/pcireg.h> 161 #include <dev/pci/pcidevs.h> 162 163 #define BKTR_DEBUG 164 #ifdef BKTR_DEBUG 165 int bktr_debug = 0; 166 #define DPR(x) (bktr_debug ? printf x : 0) 167 #else 168 #define DPR(x) 169 #endif 170 #endif /* __NetBSD__ || __OpenBSD__ */ 171 172 173 #ifdef __NetBSD__ 174 #include <dev/ic/bt8xx.h> /* NetBSD location for .h files */ 175 #include <dev/pci/bktr/bktr_reg.h> 176 #include <dev/pci/bktr/bktr_tuner.h> 177 #include <dev/pci/bktr/bktr_card.h> 178 #include <dev/pci/bktr/bktr_audio.h> 179 #include <dev/pci/bktr/bktr_core.h> 180 #include <dev/pci/bktr/bktr_os.h> 181 #else /* Traditional location for .h files */ 182 #include <dev/bktr/ioctl_meteor.h> 183 #include <dev/bktr/ioctl_bt848.h> /* extensions to ioctl_meteor.h */ 184 #include <dev/bktr/bktr_reg.h> 185 #include <dev/bktr/bktr_tuner.h> 186 #include <dev/bktr/bktr_card.h> 187 #include <dev/bktr/bktr_audio.h> 188 #include <dev/bktr/bktr_core.h> 189 #include <dev/bktr/bktr_os.h> 190 191 #if defined(BKTR_USE_FREEBSD_SMBUS) 192 #include <dev/bktr/bktr_i2c.h> 193 194 #include "iicbb_if.h" 195 #include "smbus_if.h" 196 #endif 197 #endif 198 199 200 /****************************/ 201 /* *** FreeBSD 4.x code *** */ 202 /****************************/ 203 204 static int bktr_probe( device_t dev ); 205 static int bktr_attach( device_t dev ); 206 static int bktr_detach( device_t dev ); 207 static int bktr_shutdown( device_t dev ); 208 static void bktr_intr(void *arg) { common_bktr_intr(arg); } 209 210 static device_method_t bktr_methods[] = { 211 /* Device interface */ 212 DEVMETHOD(device_probe, bktr_probe), 213 DEVMETHOD(device_attach, bktr_attach), 214 DEVMETHOD(device_detach, bktr_detach), 215 DEVMETHOD(device_shutdown, bktr_shutdown), 216 217 #if defined(BKTR_USE_FREEBSD_SMBUS) 218 /* iicbb interface */ 219 DEVMETHOD(iicbb_callback, bti2c_iic_callback), 220 DEVMETHOD(iicbb_setsda, bti2c_iic_setsda), 221 DEVMETHOD(iicbb_setscl, bti2c_iic_setscl), 222 DEVMETHOD(iicbb_getsda, bti2c_iic_getsda), 223 DEVMETHOD(iicbb_getscl, bti2c_iic_getscl), 224 DEVMETHOD(iicbb_reset, bti2c_iic_reset), 225 226 /* smbus interface */ 227 DEVMETHOD(smbus_callback, bti2c_smb_callback), 228 DEVMETHOD(smbus_writeb, bti2c_smb_writeb), 229 DEVMETHOD(smbus_writew, bti2c_smb_writew), 230 DEVMETHOD(smbus_readb, bti2c_smb_readb), 231 #endif 232 233 { 0, 0 } 234 }; 235 236 static driver_t bktr_driver = { 237 "bktr", 238 bktr_methods, 239 sizeof(struct bktr_softc), 240 }; 241 242 static devclass_t bktr_devclass; 243 244 static d_open_t bktr_open; 245 static d_close_t bktr_close; 246 static d_read_t bktr_read; 247 static d_write_t bktr_write; 248 static d_ioctl_t bktr_ioctl; 249 static d_mmap_t bktr_mmap; 250 static d_poll_t bktr_poll; 251 252 static struct cdevsw bktr_cdevsw = { 253 .d_version = D_VERSION, 254 .d_flags = D_NEEDGIANT, 255 .d_open = bktr_open, 256 .d_close = bktr_close, 257 .d_read = bktr_read, 258 .d_write = bktr_write, 259 .d_ioctl = bktr_ioctl, 260 .d_poll = bktr_poll, 261 .d_mmap = bktr_mmap, 262 .d_name = "bktr", 263 }; 264 265 DRIVER_MODULE(bktr, pci, bktr_driver, bktr_devclass, 0, 0); 266 MODULE_DEPEND(bktr, bktr_mem, 1,1,1); 267 MODULE_VERSION(bktr, 1); 268 269 270 /* 271 * the boot time probe routine. 272 */ 273 static int 274 bktr_probe( device_t dev ) 275 { 276 unsigned int type = pci_get_devid(dev); 277 unsigned int rev = pci_get_revid(dev); 278 279 if (PCI_VENDOR(type) == PCI_VENDOR_BROOKTREE) 280 { 281 switch (PCI_PRODUCT(type)) { 282 case PCI_PRODUCT_BROOKTREE_BT848: 283 if (rev == 0x12) 284 device_set_desc(dev, "BrookTree 848A"); 285 else 286 device_set_desc(dev, "BrookTree 848"); 287 return BUS_PROBE_DEFAULT; 288 case PCI_PRODUCT_BROOKTREE_BT849: 289 device_set_desc(dev, "BrookTree 849A"); 290 return BUS_PROBE_DEFAULT; 291 case PCI_PRODUCT_BROOKTREE_BT878: 292 device_set_desc(dev, "BrookTree 878"); 293 return BUS_PROBE_DEFAULT; 294 case PCI_PRODUCT_BROOKTREE_BT879: 295 device_set_desc(dev, "BrookTree 879"); 296 return BUS_PROBE_DEFAULT; 297 } 298 }; 299 300 return ENXIO; 301 } 302 303 304 /* 305 * the attach routine. 306 */ 307 static int 308 bktr_attach( device_t dev ) 309 { 310 u_long latency; 311 u_long fun; 312 u_long val; 313 unsigned int rev; 314 unsigned int unit; 315 int error = 0; 316 #ifdef BROOKTREE_IRQ 317 u_long old_irq, new_irq; 318 #endif 319 320 struct bktr_softc *bktr = device_get_softc(dev); 321 322 unit = device_get_unit(dev); 323 324 /* build the device name for bktr_name() */ 325 snprintf(bktr->bktr_xname, sizeof(bktr->bktr_xname), "bktr%d",unit); 326 327 /* 328 * Enable bus mastering and Memory Mapped device 329 */ 330 val = pci_read_config(dev, PCIR_COMMAND, 4); 331 val |= (PCIM_CMD_MEMEN|PCIM_CMD_BUSMASTEREN); 332 pci_write_config(dev, PCIR_COMMAND, val, 4); 333 334 /* 335 * Map control/status registers. 336 */ 337 bktr->mem_rid = PCIR_BAR(0); 338 bktr->res_mem = bus_alloc_resource_any(dev, SYS_RES_MEMORY, 339 &bktr->mem_rid, RF_ACTIVE); 340 341 if (!bktr->res_mem) { 342 device_printf(dev, "could not map memory\n"); 343 error = ENXIO; 344 goto fail; 345 } 346 bktr->memt = rman_get_bustag(bktr->res_mem); 347 bktr->memh = rman_get_bushandle(bktr->res_mem); 348 349 350 /* 351 * Disable the brooktree device 352 */ 353 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED); 354 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED); 355 356 357 #ifdef BROOKTREE_IRQ /* from the configuration file */ 358 old_irq = pci_conf_read(tag, PCI_INTERRUPT_REG); 359 pci_conf_write(tag, PCI_INTERRUPT_REG, BROOKTREE_IRQ); 360 new_irq = pci_conf_read(tag, PCI_INTERRUPT_REG); 361 printf("bktr%d: attach: irq changed from %d to %d\n", 362 unit, (old_irq & 0xff), (new_irq & 0xff)); 363 #endif 364 365 /* 366 * Allocate our interrupt. 367 */ 368 bktr->irq_rid = 0; 369 bktr->res_irq = bus_alloc_resource_any(dev, SYS_RES_IRQ, 370 &bktr->irq_rid, RF_SHAREABLE | RF_ACTIVE); 371 if (bktr->res_irq == NULL) { 372 device_printf(dev, "could not map interrupt\n"); 373 error = ENXIO; 374 goto fail; 375 } 376 377 error = bus_setup_intr(dev, bktr->res_irq, INTR_TYPE_TTY, 378 bktr_intr, bktr, &bktr->res_ih); 379 if (error) { 380 device_printf(dev, "could not setup irq\n"); 381 goto fail; 382 383 } 384 385 386 /* Update the Device Control Register */ 387 /* on Bt878 and Bt879 cards */ 388 fun = pci_read_config( dev, 0x40, 2); 389 fun = fun | 1; /* Enable writes to the sub-system vendor ID */ 390 391 #if defined( BKTR_430_FX_MODE ) 392 if (bootverbose) printf("Using 430 FX chipset compatibilty mode\n"); 393 fun = fun | 2; /* Enable Intel 430 FX compatibility mode */ 394 #endif 395 396 #if defined( BKTR_SIS_VIA_MODE ) 397 if (bootverbose) printf("Using SiS/VIA chipset compatibilty mode\n"); 398 fun = fun | 4; /* Enable SiS/VIA compatibility mode (usefull for 399 OPTi chipset motherboards too */ 400 #endif 401 pci_write_config(dev, 0x40, fun, 2); 402 403 #if defined(BKTR_USE_FREEBSD_SMBUS) 404 if (bt848_i2c_attach(dev)) 405 printf("bktr%d: i2c_attach: can't attach\n", unit); 406 #endif 407 408 /* 409 * PCI latency timer. 32 is a good value for 4 bus mastering slots, if 410 * you have more than four, then 16 would probably be a better value. 411 */ 412 #ifndef BROOKTREE_DEF_LATENCY_VALUE 413 #define BROOKTREE_DEF_LATENCY_VALUE 10 414 #endif 415 latency = pci_read_config(dev, PCI_LATENCY_TIMER, 4); 416 latency = (latency >> 8) & 0xff; 417 if ( bootverbose ) { 418 if (latency) 419 printf("brooktree%d: PCI bus latency is", unit); 420 else 421 printf("brooktree%d: PCI bus latency was 0 changing to", 422 unit); 423 } 424 if ( !latency ) { 425 latency = BROOKTREE_DEF_LATENCY_VALUE; 426 pci_write_config(dev, PCI_LATENCY_TIMER, latency<<8, 4); 427 } 428 if ( bootverbose ) { 429 printf(" %d.\n", (int) latency); 430 } 431 432 /* read the pci device id and revision id */ 433 fun = pci_get_devid(dev); 434 rev = pci_get_revid(dev); 435 436 /* call the common attach code */ 437 common_bktr_attach( bktr, unit, fun, rev ); 438 439 /* make the device entries */ 440 bktr->bktrdev = make_dev(&bktr_cdevsw, unit, 441 0, 0, 0444, "bktr%d", unit); 442 bktr->tunerdev= make_dev(&bktr_cdevsw, unit+16, 443 0, 0, 0444, "tuner%d", unit); 444 bktr->vbidev = make_dev(&bktr_cdevsw, unit+32, 445 0, 0, 0444, "vbi%d" , unit); 446 447 448 /* if this is unit 0 (/dev/bktr0, /dev/tuner0, /dev/vbi0) then make */ 449 /* alias entries to /dev/bktr /dev/tuner and /dev/vbi */ 450 #if (__FreeBSD_version >=500000) 451 if (unit == 0) { 452 bktr->bktrdev_alias = make_dev_alias(bktr->bktrdev, "bktr"); 453 bktr->tunerdev_alias= make_dev_alias(bktr->tunerdev, "tuner"); 454 bktr->vbidev_alias = make_dev_alias(bktr->vbidev, "vbi"); 455 } 456 #endif 457 458 return 0; 459 460 fail: 461 if (bktr->res_irq) 462 bus_release_resource(dev, SYS_RES_IRQ, bktr->irq_rid, bktr->res_irq); 463 if (bktr->res_mem) 464 bus_release_resource(dev, SYS_RES_IRQ, bktr->mem_rid, bktr->res_mem); 465 return error; 466 467 } 468 469 /* 470 * the detach routine. 471 */ 472 static int 473 bktr_detach( device_t dev ) 474 { 475 struct bktr_softc *bktr = device_get_softc(dev); 476 477 #ifdef BKTR_NEW_MSP34XX_DRIVER 478 /* Disable the soundchip and kernel thread */ 479 if (bktr->msp3400c_info != NULL) 480 msp_detach(bktr); 481 #endif 482 483 /* Disable the brooktree device */ 484 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED); 485 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED); 486 487 #if defined(BKTR_USE_FREEBSD_SMBUS) 488 if (bt848_i2c_detach(dev)) 489 printf("bktr%d: i2c_attach: can't attach\n", 490 device_get_unit(dev)); 491 #endif 492 #ifdef USE_VBIMUTEX 493 mtx_destroy(&bktr->vbimutex); 494 #endif 495 496 /* Note: We do not free memory for RISC programs, grab buffer, vbi buffers */ 497 /* The memory is retained by the bktr_mem module so we can unload and */ 498 /* then reload the main bktr driver module */ 499 500 /* Unregister the /dev/bktrN, tunerN and vbiN devices, 501 * the aliases for unit 0 are automatically destroyed */ 502 destroy_dev(bktr->vbidev); 503 destroy_dev(bktr->tunerdev); 504 destroy_dev(bktr->bktrdev); 505 506 /* 507 * Deallocate resources. 508 */ 509 bus_teardown_intr(dev, bktr->res_irq, bktr->res_ih); 510 bus_release_resource(dev, SYS_RES_IRQ, bktr->irq_rid, bktr->res_irq); 511 bus_release_resource(dev, SYS_RES_MEMORY, bktr->mem_rid, bktr->res_mem); 512 513 return 0; 514 } 515 516 /* 517 * the shutdown routine. 518 */ 519 static int 520 bktr_shutdown( device_t dev ) 521 { 522 struct bktr_softc *bktr = device_get_softc(dev); 523 524 /* Disable the brooktree device */ 525 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED); 526 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED); 527 528 return 0; 529 } 530 531 532 /* 533 * Special Memory Allocation 534 */ 535 vm_offset_t 536 get_bktr_mem( int unit, unsigned size ) 537 { 538 vm_offset_t addr = 0; 539 540 addr = (vm_offset_t)contigmalloc(size, M_DEVBUF, M_NOWAIT, 0, 541 0xffffffff, 1<<24, 0); 542 if (addr == 0) 543 addr = (vm_offset_t)contigmalloc(size, M_DEVBUF, M_NOWAIT, 0, 544 0xffffffff, PAGE_SIZE, 0); 545 if (addr == 0) { 546 printf("bktr%d: Unable to allocate %d bytes of memory.\n", 547 unit, size); 548 } 549 550 return( addr ); 551 } 552 553 554 /*--------------------------------------------------------- 555 ** 556 ** BrookTree 848 character device driver routines 557 ** 558 **--------------------------------------------------------- 559 */ 560 561 #define VIDEO_DEV 0x00 562 #define TUNER_DEV 0x01 563 #define VBI_DEV 0x02 564 565 #define UNIT(x) ((x) & 0x0f) 566 #define FUNCTION(x) (x >> 4) 567 568 /* 569 * 570 */ 571 static int 572 bktr_open( struct cdev *dev, int flags, int fmt, struct thread *td ) 573 { 574 bktr_ptr_t bktr; 575 int unit; 576 int result; 577 578 unit = UNIT( minor(dev) ); 579 580 /* Get the device data */ 581 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 582 if (bktr == NULL) { 583 /* the device is no longer valid/functioning */ 584 return (ENXIO); 585 } 586 587 if (!(bktr->flags & METEOR_INITALIZED)) /* device not found */ 588 return( ENXIO ); 589 590 /* Record that the device is now busy */ 591 device_busy(devclass_get_device(bktr_devclass, unit)); 592 593 594 if (bt848_card != -1) { 595 if ((bt848_card >> 8 == unit ) && 596 ( (bt848_card & 0xff) < Bt848_MAX_CARD )) { 597 if ( bktr->bt848_card != (bt848_card & 0xff) ) { 598 bktr->bt848_card = (bt848_card & 0xff); 599 probeCard(bktr, FALSE, unit); 600 } 601 } 602 } 603 604 if (bt848_tuner != -1) { 605 if ((bt848_tuner >> 8 == unit ) && 606 ( (bt848_tuner & 0xff) < Bt848_MAX_TUNER )) { 607 if ( bktr->bt848_tuner != (bt848_tuner & 0xff) ) { 608 bktr->bt848_tuner = (bt848_tuner & 0xff); 609 probeCard(bktr, FALSE, unit); 610 } 611 } 612 } 613 614 if (bt848_reverse_mute != -1) { 615 if ((bt848_reverse_mute >> 8) == unit ) { 616 bktr->reverse_mute = bt848_reverse_mute & 0xff; 617 } 618 } 619 620 if (bt848_slow_msp_audio != -1) { 621 if ((bt848_slow_msp_audio >> 8) == unit ) { 622 bktr->slow_msp_audio = (bt848_slow_msp_audio & 0xff); 623 } 624 } 625 626 #ifdef BKTR_NEW_MSP34XX_DRIVER 627 if (bt848_stereo_once != 0) { 628 if ((bt848_stereo_once >> 8) == unit ) { 629 bktr->stereo_once = (bt848_stereo_once & 0xff); 630 } 631 } 632 633 if (bt848_amsound != -1) { 634 if ((bt848_amsound >> 8) == unit ) { 635 bktr->amsound = (bt848_amsound & 0xff); 636 } 637 } 638 639 if (bt848_dolby != -1) { 640 if ((bt848_dolby >> 8) == unit ) { 641 bktr->dolby = (bt848_dolby & 0xff); 642 } 643 } 644 #endif 645 646 switch ( FUNCTION( minor(dev) ) ) { 647 case VIDEO_DEV: 648 result = video_open( bktr ); 649 break; 650 case TUNER_DEV: 651 result = tuner_open( bktr ); 652 break; 653 case VBI_DEV: 654 result = vbi_open( bktr ); 655 break; 656 default: 657 result = ENXIO; 658 break; 659 } 660 661 /* If there was an error opening the device, undo the busy status */ 662 if (result != 0) 663 device_unbusy(devclass_get_device(bktr_devclass, unit)); 664 return( result ); 665 } 666 667 668 /* 669 * 670 */ 671 static int 672 bktr_close( struct cdev *dev, int flags, int fmt, struct thread *td ) 673 { 674 bktr_ptr_t bktr; 675 int unit; 676 int result; 677 678 unit = UNIT( minor(dev) ); 679 680 /* Get the device data */ 681 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 682 if (bktr == NULL) { 683 /* the device is no longer valid/functioning */ 684 return (ENXIO); 685 } 686 687 switch ( FUNCTION( minor(dev) ) ) { 688 case VIDEO_DEV: 689 result = video_close( bktr ); 690 break; 691 case TUNER_DEV: 692 result = tuner_close( bktr ); 693 break; 694 case VBI_DEV: 695 result = vbi_close( bktr ); 696 break; 697 default: 698 return (ENXIO); 699 break; 700 } 701 702 device_unbusy(devclass_get_device(bktr_devclass, unit)); 703 return( result ); 704 } 705 706 707 /* 708 * 709 */ 710 static int 711 bktr_read( struct cdev *dev, struct uio *uio, int ioflag ) 712 { 713 bktr_ptr_t bktr; 714 int unit; 715 716 unit = UNIT(minor(dev)); 717 718 /* Get the device data */ 719 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 720 if (bktr == NULL) { 721 /* the device is no longer valid/functioning */ 722 return (ENXIO); 723 } 724 725 switch ( FUNCTION( minor(dev) ) ) { 726 case VIDEO_DEV: 727 return( video_read( bktr, unit, dev, uio ) ); 728 case VBI_DEV: 729 return( vbi_read( bktr, uio, ioflag ) ); 730 } 731 return( ENXIO ); 732 } 733 734 735 /* 736 * 737 */ 738 static int 739 bktr_write( struct cdev *dev, struct uio *uio, int ioflag ) 740 { 741 return( EINVAL ); /* XXX or ENXIO ? */ 742 } 743 744 745 /* 746 * 747 */ 748 static int 749 bktr_ioctl( struct cdev *dev, ioctl_cmd_t cmd, caddr_t arg, int flag, struct thread *td ) 750 { 751 bktr_ptr_t bktr; 752 int unit; 753 754 unit = UNIT(minor(dev)); 755 756 /* Get the device data */ 757 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 758 if (bktr == NULL) { 759 /* the device is no longer valid/functioning */ 760 return (ENXIO); 761 } 762 763 if (bktr->bigbuf == 0) /* no frame buffer allocated (ioctl failed) */ 764 return( ENOMEM ); 765 766 switch ( FUNCTION( minor(dev) ) ) { 767 case VIDEO_DEV: 768 return( video_ioctl( bktr, unit, cmd, arg, td ) ); 769 case TUNER_DEV: 770 return( tuner_ioctl( bktr, unit, cmd, arg, td ) ); 771 } 772 773 return( ENXIO ); 774 } 775 776 777 /* 778 * 779 */ 780 static int 781 bktr_mmap( struct cdev *dev, vm_offset_t offset, vm_paddr_t *paddr, int nprot ) 782 { 783 int unit; 784 bktr_ptr_t bktr; 785 786 unit = UNIT(minor(dev)); 787 788 if (FUNCTION(minor(dev)) > 0) /* only allow mmap on /dev/bktr[n] */ 789 return( -1 ); 790 791 /* Get the device data */ 792 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 793 if (bktr == NULL) { 794 /* the device is no longer valid/functioning */ 795 return (ENXIO); 796 } 797 798 if (nprot & PROT_EXEC) 799 return( -1 ); 800 801 if (offset < 0) 802 return( -1 ); 803 804 if (offset >= bktr->alloc_pages * PAGE_SIZE) 805 return( -1 ); 806 807 *paddr = vtophys(bktr->bigbuf) + offset; 808 return( 0 ); 809 } 810 811 static int 812 bktr_poll( struct cdev *dev, int events, struct thread *td) 813 { 814 int unit; 815 bktr_ptr_t bktr; 816 int revents = 0; 817 DECLARE_INTR_MASK(s); 818 819 unit = UNIT(minor(dev)); 820 821 /* Get the device data */ 822 bktr = (struct bktr_softc*)devclass_get_softc(bktr_devclass, unit); 823 if (bktr == NULL) { 824 /* the device is no longer valid/functioning */ 825 return (ENXIO); 826 } 827 828 LOCK_VBI(bktr); 829 DISABLE_INTR(s); 830 831 if (events & (POLLIN | POLLRDNORM)) { 832 833 switch ( FUNCTION( minor(dev) ) ) { 834 case VBI_DEV: 835 if(bktr->vbisize == 0) 836 selrecord(td, &bktr->vbi_select); 837 else 838 revents |= events & (POLLIN | POLLRDNORM); 839 break; 840 } 841 } 842 843 ENABLE_INTR(s); 844 UNLOCK_VBI(bktr); 845 846 return (revents); 847 } 848 849 /*****************/ 850 /* *** BSDI *** */ 851 /*****************/ 852 853 #if defined(__bsdi__) 854 #endif /* __bsdi__ BSDI specific kernel interface routines */ 855 856 857 /*****************************/ 858 /* *** OpenBSD / NetBSD *** */ 859 /*****************************/ 860 #if defined(__NetBSD__) || defined(__OpenBSD__) 861 862 #define IPL_VIDEO IPL_BIO /* XXX */ 863 864 static int bktr_intr(void *arg) { return common_bktr_intr(arg); } 865 866 #define bktr_open bktropen 867 #define bktr_close bktrclose 868 #define bktr_read bktrread 869 #define bktr_write bktrwrite 870 #define bktr_ioctl bktrioctl 871 #define bktr_mmap bktrmmap 872 873 vm_offset_t vm_page_alloc_contig(vm_offset_t, vm_offset_t, 874 vm_offset_t, vm_offset_t); 875 876 #if defined(__OpenBSD__) 877 static int bktr_probe(struct device *, void *, void *); 878 #else 879 static int bktr_probe(struct device *, struct cfdata *, void *); 880 #endif 881 static void bktr_attach(struct device *, struct device *, void *); 882 883 struct cfattach bktr_ca = { 884 sizeof(struct bktr_softc), bktr_probe, bktr_attach 885 }; 886 887 #if defined(__NetBSD__) 888 extern struct cfdriver bktr_cd; 889 #else 890 struct cfdriver bktr_cd = { 891 NULL, "bktr", DV_DULL 892 }; 893 #endif 894 895 int 896 bktr_probe(parent, match, aux) 897 struct device *parent; 898 #if defined(__OpenBSD__) 899 void *match; 900 #else 901 struct cfdata *match; 902 #endif 903 void *aux; 904 { 905 struct pci_attach_args *pa = aux; 906 907 if (PCI_VENDOR(pa->pa_id) == PCI_VENDOR_BROOKTREE && 908 (PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT848 || 909 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT849 || 910 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT878 || 911 PCI_PRODUCT(pa->pa_id) == PCI_PRODUCT_BROOKTREE_BT879)) 912 return 1; 913 914 return 0; 915 } 916 917 918 /* 919 * the attach routine. 920 */ 921 static void 922 bktr_attach(struct device *parent, struct device *self, void *aux) 923 { 924 bktr_ptr_t bktr; 925 u_long latency; 926 u_long fun; 927 unsigned int rev; 928 929 #if defined(__OpenBSD__) 930 struct pci_attach_args *pa = aux; 931 pci_chipset_tag_t pc = pa->pa_pc; 932 933 pci_intr_handle_t ih; 934 const char *intrstr; 935 int retval; 936 int unit; 937 938 bktr = (bktr_ptr_t)self; 939 unit = bktr->bktr_dev.dv_unit; 940 941 bktr->pc = pa->pa_pc; 942 bktr->tag = pa->pa_tag; 943 bktr->dmat = pa->pa_dmat; 944 945 /* 946 * map memory 947 */ 948 bktr->memt = pa->pa_memt; 949 retval = pci_mem_find(pc, pa->pa_tag, PCI_MAPREG_START, 950 &bktr->phys_base, &bktr->obmemsz, NULL); 951 if (!retval) 952 retval = bus_space_map(pa->pa_memt, bktr->phys_base, 953 bktr->obmemsz, 0, &bktr->memh); 954 if (retval) { 955 printf(": couldn't map memory\n"); 956 return; 957 } 958 959 960 /* 961 * map interrupt 962 */ 963 if (pci_intr_map(pa->pa_pc, pa->pa_intrtag, pa->pa_intrpin, 964 pa->pa_intrline, &ih)) { 965 printf(": couldn't map interrupt\n"); 966 return; 967 } 968 intrstr = pci_intr_string(pa->pa_pc, ih); 969 970 bktr->ih = pci_intr_establish(pa->pa_pc, ih, IPL_VIDEO, 971 bktr_intr, bktr, bktr->bktr_dev.dv_xname); 972 if (bktr->ih == NULL) { 973 printf(": couldn't establish interrupt"); 974 if (intrstr != NULL) 975 printf(" at %s", intrstr); 976 printf("\n"); 977 return; 978 } 979 980 if (intrstr != NULL) 981 printf(": %s\n", intrstr); 982 #endif /* __OpenBSD__ */ 983 984 #if defined(__NetBSD__) 985 struct pci_attach_args *pa = aux; 986 pci_intr_handle_t ih; 987 const char *intrstr; 988 int retval; 989 int unit; 990 991 bktr = (bktr_ptr_t)self; 992 unit = bktr->bktr_dev.dv_unit; 993 bktr->dmat = pa->pa_dmat; 994 995 printf("\n"); 996 997 /* 998 * map memory 999 */ 1000 retval = pci_mapreg_map(pa, PCI_MAPREG_START, 1001 PCI_MAPREG_TYPE_MEM 1002 | PCI_MAPREG_MEM_TYPE_32BIT, 0, 1003 &bktr->memt, &bktr->memh, NULL, 1004 &bktr->obmemsz); 1005 DPR(("pci_mapreg_map: memt %x, memh %x, size %x\n", 1006 bktr->memt, (u_int)bktr->memh, (u_int)bktr->obmemsz)); 1007 if (retval) { 1008 printf("%s: couldn't map memory\n", bktr_name(bktr)); 1009 return; 1010 } 1011 1012 /* 1013 * Disable the brooktree device 1014 */ 1015 OUTL(bktr, BKTR_INT_MASK, ALL_INTS_DISABLED); 1016 OUTW(bktr, BKTR_GPIO_DMA_CTL, FIFO_RISC_DISABLED); 1017 1018 /* 1019 * map interrupt 1020 */ 1021 if (pci_intr_map(pa->pa_pc, pa->pa_intrtag, pa->pa_intrpin, 1022 pa->pa_intrline, &ih)) { 1023 printf("%s: couldn't map interrupt\n", 1024 bktr_name(bktr)); 1025 return; 1026 } 1027 intrstr = pci_intr_string(pa->pa_pc, ih); 1028 bktr->ih = pci_intr_establish(pa->pa_pc, ih, IPL_VIDEO, 1029 bktr_intr, bktr); 1030 if (bktr->ih == NULL) { 1031 printf("%s: couldn't establish interrupt", 1032 bktr_name(bktr)); 1033 if (intrstr != NULL) 1034 printf(" at %s", intrstr); 1035 printf("\n"); 1036 return; 1037 } 1038 if (intrstr != NULL) 1039 printf("%s: interrupting at %s\n", bktr_name(bktr), 1040 intrstr); 1041 #endif /* __NetBSD__ */ 1042 1043 /* 1044 * PCI latency timer. 32 is a good value for 4 bus mastering slots, if 1045 * you have more than four, then 16 would probably be a better value. 1046 */ 1047 #ifndef BROOKTREE_DEF_LATENCY_VALUE 1048 #define BROOKTREE_DEF_LATENCY_VALUE 10 1049 #endif 1050 latency = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_LATENCY_TIMER); 1051 latency = (latency >> 8) & 0xff; 1052 1053 if (!latency) { 1054 if (bootverbose) { 1055 printf("%s: PCI bus latency was 0 changing to %d", 1056 bktr_name(bktr), BROOKTREE_DEF_LATENCY_VALUE); 1057 } 1058 latency = BROOKTREE_DEF_LATENCY_VALUE; 1059 pci_conf_write(pa->pa_pc, pa->pa_tag, 1060 PCI_LATENCY_TIMER, latency<<8); 1061 } 1062 1063 1064 /* Enabled Bus Master 1065 XXX: check if all old DMA is stopped first (e.g. after warm 1066 boot) */ 1067 fun = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG); 1068 pci_conf_write(pa->pa_pc, pa->pa_tag, PCI_COMMAND_STATUS_REG, 1069 fun | PCI_COMMAND_MASTER_ENABLE); 1070 1071 /* read the pci id and determine the card type */ 1072 fun = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_ID_REG); 1073 rev = pci_conf_read(pa->pa_pc, pa->pa_tag, PCI_CLASS_REG) & 0x000000ff; 1074 1075 common_bktr_attach(bktr, unit, fun, rev); 1076 } 1077 1078 1079 /* 1080 * Special Memory Allocation 1081 */ 1082 vm_offset_t 1083 get_bktr_mem(bktr, dmapp, size) 1084 bktr_ptr_t bktr; 1085 bus_dmamap_t *dmapp; 1086 unsigned int size; 1087 { 1088 bus_dma_tag_t dmat = bktr->dmat; 1089 bus_dma_segment_t seg; 1090 bus_size_t align; 1091 int rseg; 1092 caddr_t kva; 1093 1094 /* 1095 * Allocate a DMA area 1096 */ 1097 align = 1 << 24; 1098 if (bus_dmamem_alloc(dmat, size, align, 0, &seg, 1, 1099 &rseg, BUS_DMA_NOWAIT)) { 1100 align = PAGE_SIZE; 1101 if (bus_dmamem_alloc(dmat, size, align, 0, &seg, 1, 1102 &rseg, BUS_DMA_NOWAIT)) { 1103 printf("%s: Unable to dmamem_alloc of %d bytes\n", 1104 bktr_name(bktr), size); 1105 return 0; 1106 } 1107 } 1108 if (bus_dmamem_map(dmat, &seg, rseg, size, 1109 &kva, BUS_DMA_NOWAIT|BUS_DMA_COHERENT)) { 1110 printf("%s: Unable to dmamem_map of %d bytes\n", 1111 bktr_name(bktr), size); 1112 bus_dmamem_free(dmat, &seg, rseg); 1113 return 0; 1114 } 1115 #ifdef __OpenBSD__ 1116 bktr->dm_mapsize = size; 1117 #endif 1118 /* 1119 * Create and locd the DMA map for the DMA area 1120 */ 1121 if (bus_dmamap_create(dmat, size, 1, size, 0, BUS_DMA_NOWAIT, dmapp)) { 1122 printf("%s: Unable to dmamap_create of %d bytes\n", 1123 bktr_name(bktr), size); 1124 bus_dmamem_unmap(dmat, kva, size); 1125 bus_dmamem_free(dmat, &seg, rseg); 1126 return 0; 1127 } 1128 if (bus_dmamap_load(dmat, *dmapp, kva, size, NULL, BUS_DMA_NOWAIT)) { 1129 printf("%s: Unable to dmamap_load of %d bytes\n", 1130 bktr_name(bktr), size); 1131 bus_dmamem_unmap(dmat, kva, size); 1132 bus_dmamem_free(dmat, &seg, rseg); 1133 bus_dmamap_destroy(dmat, *dmapp); 1134 return 0; 1135 } 1136 return (vm_offset_t)kva; 1137 } 1138 1139 void 1140 free_bktr_mem(bktr, dmap, kva) 1141 bktr_ptr_t bktr; 1142 bus_dmamap_t dmap; 1143 vm_offset_t kva; 1144 { 1145 bus_dma_tag_t dmat = bktr->dmat; 1146 1147 #ifdef __NetBSD__ 1148 bus_dmamem_unmap(dmat, (caddr_t)kva, dmap->dm_mapsize); 1149 #else 1150 bus_dmamem_unmap(dmat, (caddr_t)kva, bktr->dm_mapsize); 1151 #endif 1152 bus_dmamem_free(dmat, dmap->dm_segs, 1); 1153 bus_dmamap_destroy(dmat, dmap); 1154 } 1155 1156 1157 /*--------------------------------------------------------- 1158 ** 1159 ** BrookTree 848 character device driver routines 1160 ** 1161 **--------------------------------------------------------- 1162 */ 1163 1164 1165 #define VIDEO_DEV 0x00 1166 #define TUNER_DEV 0x01 1167 #define VBI_DEV 0x02 1168 1169 #define UNIT(x) (minor((x) & 0x0f)) 1170 #define FUNCTION(x) (minor((x >> 4) & 0x0f)) 1171 1172 /* 1173 * 1174 */ 1175 int 1176 bktr_open(dev_t dev, int flags, int fmt, struct thread *td) 1177 { 1178 bktr_ptr_t bktr; 1179 int unit; 1180 1181 unit = UNIT(dev); 1182 1183 /* unit out of range */ 1184 if ((unit > bktr_cd.cd_ndevs) || (bktr_cd.cd_devs[unit] == NULL)) 1185 return(ENXIO); 1186 1187 bktr = bktr_cd.cd_devs[unit]; 1188 1189 if (!(bktr->flags & METEOR_INITALIZED)) /* device not found */ 1190 return(ENXIO); 1191 1192 switch (FUNCTION(dev)) { 1193 case VIDEO_DEV: 1194 return(video_open(bktr)); 1195 case TUNER_DEV: 1196 return(tuner_open(bktr)); 1197 case VBI_DEV: 1198 return(vbi_open(bktr)); 1199 } 1200 1201 return(ENXIO); 1202 } 1203 1204 1205 /* 1206 * 1207 */ 1208 int 1209 bktr_close(dev_t dev, int flags, int fmt, struct thread *td) 1210 { 1211 bktr_ptr_t bktr; 1212 int unit; 1213 1214 unit = UNIT(dev); 1215 1216 bktr = bktr_cd.cd_devs[unit]; 1217 1218 switch (FUNCTION(dev)) { 1219 case VIDEO_DEV: 1220 return(video_close(bktr)); 1221 case TUNER_DEV: 1222 return(tuner_close(bktr)); 1223 case VBI_DEV: 1224 return(vbi_close(bktr)); 1225 } 1226 1227 return(ENXIO); 1228 } 1229 1230 /* 1231 * 1232 */ 1233 int 1234 bktr_read(dev_t dev, struct uio *uio, int ioflag) 1235 { 1236 bktr_ptr_t bktr; 1237 int unit; 1238 1239 unit = UNIT(dev); 1240 1241 bktr = bktr_cd.cd_devs[unit]; 1242 1243 switch (FUNCTION(dev)) { 1244 case VIDEO_DEV: 1245 return(video_read(bktr, unit, dev, uio)); 1246 case VBI_DEV: 1247 return(vbi_read(bktr, uio, ioflag)); 1248 } 1249 1250 return(ENXIO); 1251 } 1252 1253 1254 /* 1255 * 1256 */ 1257 int 1258 bktr_write(dev_t dev, struct uio *uio, int ioflag) 1259 { 1260 /* operation not supported */ 1261 return(EOPNOTSUPP); 1262 } 1263 1264 /* 1265 * 1266 */ 1267 int 1268 bktr_ioctl(dev_t dev, ioctl_cmd_t cmd, caddr_t arg, int flag, struct thread *td) 1269 { 1270 bktr_ptr_t bktr; 1271 int unit; 1272 1273 unit = UNIT(dev); 1274 1275 bktr = bktr_cd.cd_devs[unit]; 1276 1277 if (bktr->bigbuf == 0) /* no frame buffer allocated (ioctl failed) */ 1278 return(ENOMEM); 1279 1280 switch (FUNCTION(dev)) { 1281 case VIDEO_DEV: 1282 return(video_ioctl(bktr, unit, cmd, arg, pr)); 1283 case TUNER_DEV: 1284 return(tuner_ioctl(bktr, unit, cmd, arg, pr)); 1285 } 1286 1287 return(ENXIO); 1288 } 1289 1290 /* 1291 * 1292 */ 1293 paddr_t 1294 bktr_mmap(dev_t dev, off_t offset, int nprot) 1295 { 1296 int unit; 1297 bktr_ptr_t bktr; 1298 1299 unit = UNIT(dev); 1300 1301 if (FUNCTION(dev) > 0) /* only allow mmap on /dev/bktr[n] */ 1302 return(-1); 1303 1304 bktr = bktr_cd.cd_devs[unit]; 1305 1306 if ((vaddr_t)offset < 0) 1307 return(-1); 1308 1309 if ((vaddr_t)offset >= bktr->alloc_pages * PAGE_SIZE) 1310 return(-1); 1311 1312 #ifdef __NetBSD__ 1313 return (bus_dmamem_mmap(bktr->dmat, bktr->dm_mem->dm_segs, 1, 1314 (vaddr_t)offset, nprot, BUS_DMA_WAITOK)); 1315 #else 1316 return(i386_btop(vtophys(bktr->bigbuf) + offset)); 1317 #endif 1318 } 1319 1320 #endif /* __NetBSD__ || __OpenBSD__ */
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