1/* 2 * intelfb 3 * 4 * Linux framebuffer driver for Intel(R) 830M/845G/852GM/855GM/865G/915G/915GM/ 5 * 945G/945GM integrated graphics chips. 6 * 7 * Copyright � 2002, 2003 David Dawes <dawes@xfree86.org> 8 * 2004 Sylvain Meyer 9 * 2006 David Airlie 10 * 11 * This driver consists of two parts. The first part (intelfbdrv.c) provides 12 * the basic fbdev interfaces, is derived in part from the radeonfb and 13 * vesafb drivers, and is covered by the GPL. The second part (intelfbhw.c) 14 * provides the code to program the hardware. Most of it is derived from 15 * the i810/i830 XFree86 driver. The HW-specific code is covered here 16 * under a dual license (GPL and MIT/XFree86 license). 17 * 18 * Author: David Dawes 19 * 20 */ 21 22/* $DHD: intelfb/intelfbdrv.c,v 1.20 2003/06/27 15:17:40 dawes Exp $ */ 23 24 25#include <linux/module.h> 26#include <linux/kernel.h> 27#include <linux/errno.h> 28#include <linux/string.h> 29#include <linux/mm.h> 30#include <linux/slab.h> 31#include <linux/delay.h> 32#include <linux/fb.h> 33#include <linux/ioport.h> 34#include <linux/init.h> 35#include <linux/pci.h> 36#include <linux/vmalloc.h> 37#include <linux/pagemap.h> 38#include <linux/screen_info.h> 39 40#include <asm/io.h> 41 42#ifdef CONFIG_MTRR 43#include <asm/mtrr.h> 44#endif 45 46#include "intelfb.h" 47#include "intelfbhw.h" 48#include "../edid.h" 49 50static void __devinit get_initial_mode(struct intelfb_info *dinfo); 51static void update_dinfo(struct intelfb_info *dinfo, 52 struct fb_var_screeninfo *var); 53static int intelfb_open(struct fb_info *info, int user); 54static int intelfb_release(struct fb_info *info, int user); 55static int intelfb_check_var(struct fb_var_screeninfo *var, 56 struct fb_info *info); 57static int intelfb_set_par(struct fb_info *info); 58static int intelfb_setcolreg(unsigned regno, unsigned red, unsigned green, 59 unsigned blue, unsigned transp, 60 struct fb_info *info); 61 62static int intelfb_blank(int blank, struct fb_info *info); 63static int intelfb_pan_display(struct fb_var_screeninfo *var, 64 struct fb_info *info); 65 66static void intelfb_fillrect(struct fb_info *info, 67 const struct fb_fillrect *rect); 68static void intelfb_copyarea(struct fb_info *info, 69 const struct fb_copyarea *region); 70static void intelfb_imageblit(struct fb_info *info, 71 const struct fb_image *image); 72static int intelfb_cursor(struct fb_info *info, 73 struct fb_cursor *cursor); 74 75static int intelfb_sync(struct fb_info *info); 76 77static int intelfb_ioctl(struct fb_info *info, 78 unsigned int cmd, unsigned long arg); 79 80static int __devinit intelfb_pci_register(struct pci_dev *pdev, 81 const struct pci_device_id *ent); 82static void __devexit intelfb_pci_unregister(struct pci_dev *pdev); 83static int __devinit intelfb_set_fbinfo(struct intelfb_info *dinfo); 84 85/* 86 * Limiting the class to PCI_CLASS_DISPLAY_VGA prevents function 1 of the 87 * mobile chipsets from being registered. 88 */ 89#if DETECT_VGA_CLASS_ONLY 90#define INTELFB_CLASS_MASK ~0 << 8 91#else 92#define INTELFB_CLASS_MASK 0 93#endif 94 95static struct pci_device_id intelfb_pci_table[] __devinitdata = { 96 { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_830M, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, INTELFB_CLASS_MASK, INTEL_830M }, 97 { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_845G, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, INTELFB_CLASS_MASK, INTEL_845G }, 98 { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_85XGM, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, INTELFB_CLASS_MASK, INTEL_85XGM }, 99 { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_865G, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, INTELFB_CLASS_MASK, INTEL_865G }, 100 { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_915G, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, INTELFB_CLASS_MASK, INTEL_915G }, 101 { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_915GM, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, INTELFB_CLASS_MASK, INTEL_915GM }, 102 { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_945G, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, INTELFB_CLASS_MASK, INTEL_945G }, 103 { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_945GM, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, INTELFB_CLASS_MASK, INTEL_945GM }, 104 { 0, } 105}; 106 107/* Global data */ 108static int num_registered = 0; 109 110/* fb ops */ 111static struct fb_ops intel_fb_ops = { 112 .owner = THIS_MODULE, 113 .fb_open = intelfb_open, 114 .fb_release = intelfb_release, 115 .fb_check_var = intelfb_check_var, 116 .fb_set_par = intelfb_set_par, 117 .fb_setcolreg = intelfb_setcolreg, 118 .fb_blank = intelfb_blank, 119 .fb_pan_display = intelfb_pan_display, 120 .fb_fillrect = intelfb_fillrect, 121 .fb_copyarea = intelfb_copyarea, 122 .fb_imageblit = intelfb_imageblit, 123 .fb_cursor = intelfb_cursor, 124 .fb_sync = intelfb_sync, 125 .fb_ioctl = intelfb_ioctl 126}; 127 128/* PCI driver module table */ 129static struct pci_driver intelfb_driver = { 130 .name = "intelfb", 131 .id_table = intelfb_pci_table, 132 .probe = intelfb_pci_register, 133 .remove = __devexit_p(intelfb_pci_unregister) 134}; 135 136/* Module description/parameters */ 137MODULE_AUTHOR("David Dawes <dawes@tungstengraphics.com>, " 138 "Sylvain Meyer <sylvain.meyer@worldonline.fr>"); 139MODULE_DESCRIPTION( 140 "Framebuffer driver for Intel(R) " SUPPORTED_CHIPSETS " chipsets"); 141MODULE_LICENSE("Dual BSD/GPL"); 142MODULE_DEVICE_TABLE(pci, intelfb_pci_table); 143 144static int accel = 1; 145static int vram = 4; 146static int hwcursor = 0; 147static int mtrr = 1; 148static int fixed = 0; 149static int noinit = 0; 150static int noregister = 0; 151static int probeonly = 0; 152static int idonly = 0; 153static int bailearly = 0; 154static int voffset = 48; 155static char *mode = NULL; 156 157module_param(accel, bool, S_IRUGO); 158MODULE_PARM_DESC(accel, "Enable hardware acceleration"); 159module_param(vram, int, S_IRUGO); 160MODULE_PARM_DESC(vram, "System RAM to allocate to framebuffer in MiB"); 161module_param(voffset, int, S_IRUGO); 162MODULE_PARM_DESC(voffset, "Offset of framebuffer in MiB"); 163module_param(hwcursor, bool, S_IRUGO); 164MODULE_PARM_DESC(hwcursor, "Enable HW cursor"); 165module_param(mtrr, bool, S_IRUGO); 166MODULE_PARM_DESC(mtrr, "Enable MTRR support"); 167module_param(fixed, bool, S_IRUGO); 168MODULE_PARM_DESC(fixed, "Disable mode switching"); 169module_param(noinit, bool, 0); 170MODULE_PARM_DESC(noinit, "Don't initialise graphics mode when loading"); 171module_param(noregister, bool, 0); 172MODULE_PARM_DESC(noregister, "Don't register, just probe and exit (debug)"); 173module_param(probeonly, bool, 0); 174MODULE_PARM_DESC(probeonly, "Do a minimal probe (debug)"); 175module_param(idonly, bool, 0); 176MODULE_PARM_DESC(idonly, "Just identify without doing anything else (debug)"); 177module_param(bailearly, bool, 0); 178MODULE_PARM_DESC(bailearly, "Bail out early, depending on value (debug)"); 179module_param(mode, charp, S_IRUGO); 180MODULE_PARM_DESC(mode, 181 "Initial video mode \"<xres>x<yres>[-<depth>][@<refresh>]\""); 182 183#ifndef MODULE 184#define OPT_EQUAL(opt, name) (!strncmp(opt, name, strlen(name))) 185#define OPT_INTVAL(opt, name) simple_strtoul(opt + strlen(name) + 1, NULL, 0) 186#define OPT_STRVAL(opt, name) (opt + strlen(name)) 187 188static __inline__ char * 189get_opt_string(const char *this_opt, const char *name) 190{ 191 const char *p; 192 int i; 193 char *ret; 194 195 p = OPT_STRVAL(this_opt, name); 196 i = 0; 197 while (p[i] && p[i] != ' ' && p[i] != ',') 198 i++; 199 ret = kmalloc(i + 1, GFP_KERNEL); 200 if (ret) { 201 strncpy(ret, p, i); 202 ret[i] = '\0'; 203 } 204 return ret; 205} 206 207static __inline__ int 208get_opt_int(const char *this_opt, const char *name, int *ret) 209{ 210 if (!ret) 211 return 0; 212 213 if (!OPT_EQUAL(this_opt, name)) 214 return 0; 215 216 *ret = OPT_INTVAL(this_opt, name); 217 return 1; 218} 219 220static __inline__ int 221get_opt_bool(const char *this_opt, const char *name, int *ret) 222{ 223 if (!ret) 224 return 0; 225 226 if (OPT_EQUAL(this_opt, name)) { 227 if (this_opt[strlen(name)] == '=') 228 *ret = simple_strtoul(this_opt + strlen(name) + 1, 229 NULL, 0); 230 else 231 *ret = 1; 232 } else { 233 if (OPT_EQUAL(this_opt, "no") && OPT_EQUAL(this_opt + 2, name)) 234 *ret = 0; 235 else 236 return 0; 237 } 238 return 1; 239} 240 241static int __init 242intelfb_setup(char *options) 243{ 244 char *this_opt; 245 246 DBG_MSG("intelfb_setup\n"); 247 248 if (!options || !*options) { 249 DBG_MSG("no options\n"); 250 return 0; 251 } else 252 DBG_MSG("options: %s\n", options); 253 254 /* 255 * These are the built-in options analogous to the module parameters 256 * defined above. 257 * 258 * The syntax is: 259 * 260 * video=intelfb:[mode][,<param>=<val>] ... 261 * 262 * e.g., 263 * 264 * video=intelfb:1024x768-16@75,accel=0 265 */ 266 267 while ((this_opt = strsep(&options, ","))) { 268 if (!*this_opt) 269 continue; 270 if (get_opt_bool(this_opt, "accel", &accel)) 271 ; 272 else if (get_opt_int(this_opt, "vram", &vram)) 273 ; 274 else if (get_opt_bool(this_opt, "hwcursor", &hwcursor)) 275 ; 276 else if (get_opt_bool(this_opt, "mtrr", &mtrr)) 277 ; 278 else if (get_opt_bool(this_opt, "fixed", &fixed)) 279 ; 280 else if (get_opt_bool(this_opt, "init", &noinit)) 281 noinit = !noinit; 282 else if (OPT_EQUAL(this_opt, "mode=")) 283 mode = get_opt_string(this_opt, "mode="); 284 else 285 mode = this_opt; 286 } 287 288 return 0; 289} 290 291#endif 292 293static int __init 294intelfb_init(void) 295{ 296#ifndef MODULE 297 char *option = NULL; 298#endif 299 300 DBG_MSG("intelfb_init\n"); 301 302 INF_MSG("Framebuffer driver for " 303 "Intel(R) " SUPPORTED_CHIPSETS " chipsets\n"); 304 INF_MSG("Version " INTELFB_VERSION "\n"); 305 306 if (idonly) 307 return -ENODEV; 308 309#ifndef MODULE 310 if (fb_get_options("intelfb", &option)) 311 return -ENODEV; 312 intelfb_setup(option); 313#endif 314 315 return pci_register_driver(&intelfb_driver); 316} 317 318static void __exit 319intelfb_exit(void) 320{ 321 DBG_MSG("intelfb_exit\n"); 322 pci_unregister_driver(&intelfb_driver); 323} 324 325module_init(intelfb_init); 326module_exit(intelfb_exit); 327 328/*************************************************************** 329 * mtrr support functions * 330 ***************************************************************/ 331 332#ifdef CONFIG_MTRR 333static inline void __devinit set_mtrr(struct intelfb_info *dinfo) 334{ 335 dinfo->mtrr_reg = mtrr_add(dinfo->aperture.physical, 336 dinfo->aperture.size, MTRR_TYPE_WRCOMB, 1); 337 if (dinfo->mtrr_reg < 0) { 338 ERR_MSG("unable to set MTRR\n"); 339 return; 340 } 341 dinfo->has_mtrr = 1; 342} 343static inline void unset_mtrr(struct intelfb_info *dinfo) 344{ 345 if (dinfo->has_mtrr) 346 mtrr_del(dinfo->mtrr_reg, dinfo->aperture.physical, 347 dinfo->aperture.size); 348} 349#else 350#define set_mtrr(x) WRN_MSG("MTRR is disabled in the kernel\n") 351 352#define unset_mtrr(x) do { } while (0) 353#endif /* CONFIG_MTRR */ 354 355/*************************************************************** 356 * driver init / cleanup * 357 ***************************************************************/ 358 359static void 360cleanup(struct intelfb_info *dinfo) 361{ 362 DBG_MSG("cleanup\n"); 363 364 if (!dinfo) 365 return; 366 367 intelfbhw_disable_irq(dinfo); 368 369 fb_dealloc_cmap(&dinfo->info->cmap); 370 kfree(dinfo->info->pixmap.addr); 371 372 if (dinfo->registered) 373 unregister_framebuffer(dinfo->info); 374 375 unset_mtrr(dinfo); 376 377 if (dinfo->fbmem_gart && dinfo->gtt_fb_mem) { 378 agp_unbind_memory(dinfo->gtt_fb_mem); 379 agp_free_memory(dinfo->gtt_fb_mem); 380 } 381 if (dinfo->gtt_cursor_mem) { 382 agp_unbind_memory(dinfo->gtt_cursor_mem); 383 agp_free_memory(dinfo->gtt_cursor_mem); 384 } 385 if (dinfo->gtt_ring_mem) { 386 agp_unbind_memory(dinfo->gtt_ring_mem); 387 agp_free_memory(dinfo->gtt_ring_mem); 388 } 389 390#ifdef CONFIG_FB_INTEL_I2C 391 /* un-register I2C bus */ 392 intelfb_delete_i2c_busses(dinfo); 393#endif 394 395 if (dinfo->mmio_base) 396 iounmap((void __iomem *)dinfo->mmio_base); 397 if (dinfo->aperture.virtual) 398 iounmap((void __iomem *)dinfo->aperture.virtual); 399 400 if (dinfo->flag & INTELFB_MMIO_ACQUIRED) 401 release_mem_region(dinfo->mmio_base_phys, INTEL_REG_SIZE); 402 if (dinfo->flag & INTELFB_FB_ACQUIRED) 403 release_mem_region(dinfo->aperture.physical, 404 dinfo->aperture.size); 405 framebuffer_release(dinfo->info); 406} 407 408#define bailout(dinfo) do { \ 409 DBG_MSG("bailout\n"); \ 410 cleanup(dinfo); \ 411 INF_MSG("Not going to register framebuffer, exiting...\n"); \ 412 return -ENODEV; \ 413} while (0) 414 415 416static int __devinit 417intelfb_pci_register(struct pci_dev *pdev, const struct pci_device_id *ent) 418{ 419 struct fb_info *info; 420 struct intelfb_info *dinfo; 421 int i, err, dvo; 422 int aperture_size, stolen_size; 423 struct agp_kern_info gtt_info; 424 int agp_memtype; 425 const char *s; 426 struct agp_bridge_data *bridge; 427 int aperture_bar = 0; 428 int mmio_bar = 1; 429 int offset; 430 431 DBG_MSG("intelfb_pci_register\n"); 432 433 num_registered++; 434 if (num_registered != 1) { 435 ERR_MSG("Attempted to register %d devices " 436 "(should be only 1).\n", num_registered); 437 return -ENODEV; 438 } 439 440 info = framebuffer_alloc(sizeof(struct intelfb_info), &pdev->dev); 441 if (!info) { 442 ERR_MSG("Could not allocate memory for intelfb_info.\n"); 443 return -ENODEV; 444 } 445 if (fb_alloc_cmap(&info->cmap, 256, 1) < 0) { 446 ERR_MSG("Could not allocate cmap for intelfb_info.\n"); 447 goto err_out_cmap; 448 return -ENODEV; 449 } 450 451 dinfo = info->par; 452 dinfo->info = info; 453 dinfo->fbops = &intel_fb_ops; 454 dinfo->pdev = pdev; 455 456 /* Reserve pixmap space. */ 457 info->pixmap.addr = kzalloc(64 * 1024, GFP_KERNEL); 458 if (info->pixmap.addr == NULL) { 459 ERR_MSG("Cannot reserve pixmap memory.\n"); 460 goto err_out_pixmap; 461 } 462 463 /* set early this option because it could be changed by tv encoder 464 driver */ 465 dinfo->fixed_mode = fixed; 466 467 /* Enable device. */ 468 if ((err = pci_enable_device(pdev))) { 469 ERR_MSG("Cannot enable device.\n"); 470 cleanup(dinfo); 471 return -ENODEV; 472 } 473 474 /* Set base addresses. */ 475 if ((ent->device == PCI_DEVICE_ID_INTEL_915G) || 476 (ent->device == PCI_DEVICE_ID_INTEL_915GM) || 477 (ent->device == PCI_DEVICE_ID_INTEL_945G) || 478 (ent->device == PCI_DEVICE_ID_INTEL_945GM)) { 479 aperture_bar = 2; 480 mmio_bar = 0; 481 } 482 dinfo->aperture.physical = pci_resource_start(pdev, aperture_bar); 483 dinfo->aperture.size = pci_resource_len(pdev, aperture_bar); 484 dinfo->mmio_base_phys = pci_resource_start(pdev, mmio_bar); 485 DBG_MSG("fb aperture: 0x%llx/0x%llx, MMIO region: 0x%llx/0x%llx\n", 486 (unsigned long long)pci_resource_start(pdev, aperture_bar), 487 (unsigned long long)pci_resource_len(pdev, aperture_bar), 488 (unsigned long long)pci_resource_start(pdev, mmio_bar), 489 (unsigned long long)pci_resource_len(pdev, mmio_bar)); 490 491 /* Reserve the fb and MMIO regions */ 492 if (!request_mem_region(dinfo->aperture.physical, dinfo->aperture.size, 493 INTELFB_MODULE_NAME)) { 494 ERR_MSG("Cannot reserve FB region.\n"); 495 cleanup(dinfo); 496 return -ENODEV; 497 } 498 499 dinfo->flag |= INTELFB_FB_ACQUIRED; 500 501 if (!request_mem_region(dinfo->mmio_base_phys, 502 INTEL_REG_SIZE, 503 INTELFB_MODULE_NAME)) { 504 ERR_MSG("Cannot reserve MMIO region.\n"); 505 cleanup(dinfo); 506 return -ENODEV; 507 } 508 509 dinfo->flag |= INTELFB_MMIO_ACQUIRED; 510 511 /* Get the chipset info. */ 512 dinfo->pci_chipset = pdev->device; 513 514 if (intelfbhw_get_chipset(pdev, dinfo)) { 515 cleanup(dinfo); 516 return -ENODEV; 517 } 518 519 if (intelfbhw_get_memory(pdev, &aperture_size,&stolen_size)) { 520 cleanup(dinfo); 521 return -ENODEV; 522 } 523 524 INF_MSG("%02x:%02x.%d: %s, aperture size %dMB, " 525 "stolen memory %dkB\n", 526 pdev->bus->number, PCI_SLOT(pdev->devfn), 527 PCI_FUNC(pdev->devfn), dinfo->name, 528 BtoMB(aperture_size), BtoKB(stolen_size)); 529 530 /* Set these from the options. */ 531 dinfo->accel = accel; 532 dinfo->hwcursor = hwcursor; 533 534 if (NOACCEL_CHIPSET(dinfo) && dinfo->accel == 1) { 535 INF_MSG("Acceleration is not supported for the %s chipset.\n", 536 dinfo->name); 537 dinfo->accel = 0; 538 } 539 540 /* Framebuffer parameters - Use all the stolen memory if >= vram */ 541 if (ROUND_UP_TO_PAGE(stolen_size) >= MB(vram)) { 542 dinfo->fb.size = ROUND_UP_TO_PAGE(stolen_size); 543 dinfo->fbmem_gart = 0; 544 } else { 545 dinfo->fb.size = MB(vram); 546 dinfo->fbmem_gart = 1; 547 } 548 549 /* Allocate space for the ring buffer and HW cursor if enabled. */ 550 if (dinfo->accel) { 551 dinfo->ring.size = RINGBUFFER_SIZE; 552 dinfo->ring_tail_mask = dinfo->ring.size - 1; 553 } 554 if (dinfo->hwcursor) { 555 dinfo->cursor.size = HW_CURSOR_SIZE; 556 } 557 558 /* Use agpgart to manage the GATT */ 559 if (!(bridge = agp_backend_acquire(pdev))) { 560 ERR_MSG("cannot acquire agp\n"); 561 cleanup(dinfo); 562 return -ENODEV; 563 } 564 565 /* get the current gatt info */ 566 if (agp_copy_info(bridge, >t_info)) { 567 ERR_MSG("cannot get agp info\n"); 568 agp_backend_release(bridge); 569 cleanup(dinfo); 570 return -ENODEV; 571 } 572 573 if (MB(voffset) < stolen_size) 574 offset = (stolen_size >> 12); 575 else 576 offset = ROUND_UP_TO_PAGE(MB(voffset))/GTT_PAGE_SIZE; 577 578 /* set the mem offsets - set them after the already used pages */ 579 if (dinfo->accel) { 580 dinfo->ring.offset = offset + gtt_info.current_memory; 581 } 582 if (dinfo->hwcursor) { 583 dinfo->cursor.offset = offset + 584 + gtt_info.current_memory + (dinfo->ring.size >> 12); 585 } 586 if (dinfo->fbmem_gart) { 587 dinfo->fb.offset = offset + 588 + gtt_info.current_memory + (dinfo->ring.size >> 12) 589 + (dinfo->cursor.size >> 12); 590 } 591 592 /* Allocate memories (which aren't stolen) */ 593 /* Map the fb and MMIO regions */ 594 /* ioremap only up to the end of used aperture */ 595 dinfo->aperture.virtual = (u8 __iomem *)ioremap_nocache 596 (dinfo->aperture.physical, ((offset + dinfo->fb.offset) << 12) 597 + dinfo->fb.size); 598 if (!dinfo->aperture.virtual) { 599 ERR_MSG("Cannot remap FB region.\n"); 600 cleanup(dinfo); 601 return -ENODEV; 602 } 603 604 dinfo->mmio_base = 605 (u8 __iomem *)ioremap_nocache(dinfo->mmio_base_phys, 606 INTEL_REG_SIZE); 607 if (!dinfo->mmio_base) { 608 ERR_MSG("Cannot remap MMIO region.\n"); 609 cleanup(dinfo); 610 return -ENODEV; 611 } 612 613 if (dinfo->accel) { 614 if (!(dinfo->gtt_ring_mem = 615 agp_allocate_memory(bridge, dinfo->ring.size >> 12, 616 AGP_NORMAL_MEMORY))) { 617 ERR_MSG("cannot allocate ring buffer memory\n"); 618 agp_backend_release(bridge); 619 cleanup(dinfo); 620 return -ENOMEM; 621 } 622 if (agp_bind_memory(dinfo->gtt_ring_mem, 623 dinfo->ring.offset)) { 624 ERR_MSG("cannot bind ring buffer memory\n"); 625 agp_backend_release(bridge); 626 cleanup(dinfo); 627 return -EBUSY; 628 } 629 dinfo->ring.physical = dinfo->aperture.physical 630 + (dinfo->ring.offset << 12); 631 dinfo->ring.virtual = dinfo->aperture.virtual 632 + (dinfo->ring.offset << 12); 633 dinfo->ring_head = 0; 634 } 635 if (dinfo->hwcursor) { 636 agp_memtype = dinfo->mobile ? AGP_PHYSICAL_MEMORY 637 : AGP_NORMAL_MEMORY; 638 if (!(dinfo->gtt_cursor_mem = 639 agp_allocate_memory(bridge, dinfo->cursor.size >> 12, 640 agp_memtype))) { 641 ERR_MSG("cannot allocate cursor memory\n"); 642 agp_backend_release(bridge); 643 cleanup(dinfo); 644 return -ENOMEM; 645 } 646 if (agp_bind_memory(dinfo->gtt_cursor_mem, 647 dinfo->cursor.offset)) { 648 ERR_MSG("cannot bind cursor memory\n"); 649 agp_backend_release(bridge); 650 cleanup(dinfo); 651 return -EBUSY; 652 } 653 if (dinfo->mobile) 654 dinfo->cursor.physical 655 = dinfo->gtt_cursor_mem->physical; 656 else 657 dinfo->cursor.physical = dinfo->aperture.physical 658 + (dinfo->cursor.offset << 12); 659 dinfo->cursor.virtual = dinfo->aperture.virtual 660 + (dinfo->cursor.offset << 12); 661 } 662 if (dinfo->fbmem_gart) { 663 if (!(dinfo->gtt_fb_mem = 664 agp_allocate_memory(bridge, dinfo->fb.size >> 12, 665 AGP_NORMAL_MEMORY))) { 666 WRN_MSG("cannot allocate framebuffer memory - use " 667 "the stolen one\n"); 668 dinfo->fbmem_gart = 0; 669 } 670 if (agp_bind_memory(dinfo->gtt_fb_mem, 671 dinfo->fb.offset)) { 672 WRN_MSG("cannot bind framebuffer memory - use " 673 "the stolen one\n"); 674 dinfo->fbmem_gart = 0; 675 } 676 } 677 678 /* update framebuffer memory parameters */ 679 if (!dinfo->fbmem_gart) 680 dinfo->fb.offset = 0; /* starts at offset 0 */ 681 dinfo->fb.physical = dinfo->aperture.physical 682 + (dinfo->fb.offset << 12); 683 dinfo->fb.virtual = dinfo->aperture.virtual + (dinfo->fb.offset << 12); 684 dinfo->fb_start = dinfo->fb.offset << 12; 685 686 /* release agpgart */ 687 agp_backend_release(bridge); 688 689 if (mtrr) 690 set_mtrr(dinfo); 691 692 DBG_MSG("fb: 0x%x(+ 0x%x)/0x%x (0x%p)\n", 693 dinfo->fb.physical, dinfo->fb.offset, dinfo->fb.size, 694 dinfo->fb.virtual); 695 DBG_MSG("MMIO: 0x%x/0x%x (0x%p)\n", 696 dinfo->mmio_base_phys, INTEL_REG_SIZE, 697 dinfo->mmio_base); 698 DBG_MSG("ring buffer: 0x%x/0x%x (0x%p)\n", 699 dinfo->ring.physical, dinfo->ring.size, 700 dinfo->ring.virtual); 701 DBG_MSG("HW cursor: 0x%x/0x%x (0x%p) (offset 0x%x) (phys 0x%x)\n", 702 dinfo->cursor.physical, dinfo->cursor.size, 703 dinfo->cursor.virtual, dinfo->cursor.offset, 704 dinfo->cursor.physical); 705 706 DBG_MSG("options: vram = %d, accel = %d, hwcursor = %d, fixed = %d, " 707 "noinit = %d\n", vram, accel, hwcursor, fixed, noinit); 708 DBG_MSG("options: mode = \"%s\"\n", mode ? mode : ""); 709 710 if (probeonly) 711 bailout(dinfo); 712 713 /* 714 * Check if the LVDS port or any DVO ports are enabled. If so, 715 * don't allow mode switching 716 */ 717 dvo = intelfbhw_check_non_crt(dinfo); 718 if (dvo) { 719 dinfo->fixed_mode = 1; 720 WRN_MSG("Non-CRT device is enabled ( "); 721 i = 0; 722 while (dvo) { 723 if (dvo & 1) { 724 s = intelfbhw_dvo_to_string(1 << i); 725 if (s) 726 printk("%s ", s); 727 } 728 dvo >>= 1; 729 ++i; 730 } 731 printk("). Disabling mode switching.\n"); 732 } 733 734 if (bailearly == 1) 735 bailout(dinfo); 736 737 if (FIXED_MODE(dinfo) && ORIG_VIDEO_ISVGA != VIDEO_TYPE_VLFB) { 738 ERR_MSG("Video mode must be programmed at boot time.\n"); 739 cleanup(dinfo); 740 return -ENODEV; 741 } 742 743 if (bailearly == 2) 744 bailout(dinfo); 745 746 /* Initialise dinfo and related data. */ 747 /* If an initial mode was programmed at boot time, get its details. */ 748 if (ORIG_VIDEO_ISVGA == VIDEO_TYPE_VLFB) 749 get_initial_mode(dinfo); 750 751 if (bailearly == 3) 752 bailout(dinfo); 753 754 if (FIXED_MODE(dinfo)) { 755 /* remap fb address */ 756 update_dinfo(dinfo, &dinfo->initial_var); 757 } 758 759 if (bailearly == 4) 760 bailout(dinfo); 761 762 763 if (intelfb_set_fbinfo(dinfo)) { 764 cleanup(dinfo); 765 return -ENODEV; 766 } 767 768 if (bailearly == 5) 769 bailout(dinfo); 770 771#ifdef CONFIG_FB_INTEL_I2C 772 /* register I2C bus */ 773 intelfb_create_i2c_busses(dinfo); 774#endif 775 776 if (bailearly == 6) 777 bailout(dinfo); 778 779 pci_set_drvdata(pdev, dinfo); 780 781 /* Save the initial register state. */ 782 i = intelfbhw_read_hw_state(dinfo, &dinfo->save_state, 783 bailearly > 6 ? bailearly - 6 : 0); 784 if (i != 0) { 785 DBG_MSG("intelfbhw_read_hw_state returned %d\n", i); 786 bailout(dinfo); 787 } 788 789 intelfbhw_print_hw_state(dinfo, &dinfo->save_state); 790 791 if (bailearly == 18) 792 bailout(dinfo); 793 794 /* Cursor initialisation */ 795 if (dinfo->hwcursor) { 796 intelfbhw_cursor_init(dinfo); 797 intelfbhw_cursor_reset(dinfo); 798 } 799 800 if (bailearly == 19) 801 bailout(dinfo); 802 803 /* 2d acceleration init */ 804 if (dinfo->accel) 805 intelfbhw_2d_start(dinfo); 806 807 if (bailearly == 20) 808 bailout(dinfo); 809 810 if (noregister) 811 bailout(dinfo); 812 813 if (register_framebuffer(dinfo->info) < 0) { 814 ERR_MSG("Cannot register framebuffer.\n"); 815 cleanup(dinfo); 816 return -ENODEV; 817 } 818 819 dinfo->registered = 1; 820 dinfo->open = 0; 821 822 init_waitqueue_head(&dinfo->vsync.wait); 823 spin_lock_init(&dinfo->int_lock); 824 dinfo->irq_flags = 0; 825 dinfo->vsync.pan_display = 0; 826 dinfo->vsync.pan_offset = 0; 827 828 return 0; 829 830err_out_pixmap: 831 fb_dealloc_cmap(&info->cmap); 832err_out_cmap: 833 framebuffer_release(info); 834 return -ENODEV; 835} 836 837static void __devexit 838intelfb_pci_unregister(struct pci_dev *pdev) 839{ 840 struct intelfb_info *dinfo = pci_get_drvdata(pdev); 841 842 DBG_MSG("intelfb_pci_unregister\n"); 843 844 if (!dinfo) 845 return; 846 847 cleanup(dinfo); 848 849 pci_set_drvdata(pdev, NULL); 850} 851 852/*************************************************************** 853 * helper functions * 854 ***************************************************************/ 855 856int __inline__ 857intelfb_var_to_depth(const struct fb_var_screeninfo *var) 858{ 859 DBG_MSG("intelfb_var_to_depth: bpp: %d, green.length is %d\n", 860 var->bits_per_pixel, var->green.length); 861 862 switch (var->bits_per_pixel) { 863 case 16: 864 return (var->green.length == 6) ? 16 : 15; 865 case 32: 866 return 24; 867 default: 868 return var->bits_per_pixel; 869 } 870} 871 872 873static __inline__ int 874var_to_refresh(const struct fb_var_screeninfo *var) 875{ 876 int xtot = var->xres + var->left_margin + var->right_margin + 877 var->hsync_len; 878 int ytot = var->yres + var->upper_margin + var->lower_margin + 879 var->vsync_len; 880 881 return (1000000000 / var->pixclock * 1000 + 500) / xtot / ytot; 882} 883 884/*************************************************************** 885 * Various intialisation functions * 886 ***************************************************************/ 887 888static void __devinit 889get_initial_mode(struct intelfb_info *dinfo) 890{ 891 struct fb_var_screeninfo *var; 892 int xtot, ytot; 893 894 DBG_MSG("get_initial_mode\n"); 895 896 dinfo->initial_vga = 1; 897 dinfo->initial_fb_base = screen_info.lfb_base; 898 dinfo->initial_video_ram = screen_info.lfb_size * KB(64); 899 dinfo->initial_pitch = screen_info.lfb_linelength; 900 901 var = &dinfo->initial_var; 902 memset(var, 0, sizeof(*var)); 903 var->xres = screen_info.lfb_width; 904 var->yres = screen_info.lfb_height; 905 var->bits_per_pixel = screen_info.lfb_depth; 906 switch (screen_info.lfb_depth) { 907 case 15: 908 var->bits_per_pixel = 16; 909 break; 910 case 24: 911 var->bits_per_pixel = 32; 912 break; 913 } 914 915 DBG_MSG("Initial info: FB is 0x%x/0x%x (%d kByte)\n", 916 dinfo->initial_fb_base, dinfo->initial_video_ram, 917 BtoKB(dinfo->initial_video_ram)); 918 919 DBG_MSG("Initial info: mode is %dx%d-%d (%d)\n", 920 var->xres, var->yres, var->bits_per_pixel, 921 dinfo->initial_pitch); 922 923 /* Dummy timing values (assume 60Hz) */ 924 var->left_margin = (var->xres / 8) & 0xf8; 925 var->right_margin = 32; 926 var->upper_margin = 16; 927 var->lower_margin = 4; 928 var->hsync_len = (var->xres / 8) & 0xf8; 929 var->vsync_len = 4; 930 931 xtot = var->xres + var->left_margin + 932 var->right_margin + var->hsync_len; 933 ytot = var->yres + var->upper_margin + 934 var->lower_margin + var->vsync_len; 935 var->pixclock = 10000000 / xtot * 1000 / ytot * 100 / 60; 936 937 var->height = -1; 938 var->width = -1; 939 940 if (var->bits_per_pixel > 8) { 941 var->red.offset = screen_info.red_pos; 942 var->red.length = screen_info.red_size; 943 var->green.offset = screen_info.green_pos; 944 var->green.length = screen_info.green_size; 945 var->blue.offset = screen_info.blue_pos; 946 var->blue.length = screen_info.blue_size; 947 var->transp.offset = screen_info.rsvd_pos; 948 var->transp.length = screen_info.rsvd_size; 949 } else { 950 var->red.length = 8; 951 var->green.length = 8; 952 var->blue.length = 8; 953 } 954} 955 956static int __devinit 957intelfb_init_var(struct intelfb_info *dinfo) 958{ 959 struct fb_var_screeninfo *var; 960 int msrc = 0; 961 962 DBG_MSG("intelfb_init_var\n"); 963 964 var = &dinfo->info->var; 965 if (FIXED_MODE(dinfo)) { 966 memcpy(var, &dinfo->initial_var, 967 sizeof(struct fb_var_screeninfo)); 968 msrc = 5; 969 } else { 970 const u8 *edid_s = fb_firmware_edid(&dinfo->pdev->dev); 971 u8 *edid_d = NULL; 972 973 if (edid_s) { 974 edid_d = kmemdup(edid_s, EDID_LENGTH, GFP_KERNEL); 975 976 if (edid_d) { 977 fb_edid_to_monspecs(edid_d, 978 &dinfo->info->monspecs); 979 kfree(edid_d); 980 } 981 } 982 983 if (mode) { 984 printk("intelfb: Looking for mode in private " 985 "database\n"); 986 msrc = fb_find_mode(var, dinfo->info, mode, 987 dinfo->info->monspecs.modedb, 988 dinfo->info->monspecs.modedb_len, 989 NULL, 0); 990 991 if (msrc && msrc > 1) { 992 printk("intelfb: No mode in private database, " 993 "intelfb: looking for mode in global " 994 "database "); 995 msrc = fb_find_mode(var, dinfo->info, mode, 996 NULL, 0, NULL, 0); 997 998 if (msrc) 999 msrc |= 8; 1000 } 1001 1002 } 1003 1004 if (!msrc) { 1005 msrc = fb_find_mode(var, dinfo->info, PREFERRED_MODE, 1006 NULL, 0, NULL, 0); 1007 } 1008 } 1009 1010 if (!msrc) { 1011 ERR_MSG("Cannot find a suitable video mode.\n"); 1012 return 1; 1013 } 1014 1015 INF_MSG("Initial video mode is %dx%d-%d@%d.\n", var->xres, var->yres, 1016 var->bits_per_pixel, var_to_refresh(var)); 1017 1018 DBG_MSG("Initial video mode is from %d.\n", msrc); 1019 1020#if ALLOCATE_FOR_PANNING 1021 /* Allow use of half of the video ram for panning */ 1022 var->xres_virtual = var->xres; 1023 var->yres_virtual = 1024 dinfo->fb.size / 2 / (var->bits_per_pixel * var->xres); 1025 if (var->yres_virtual < var->yres) 1026 var->yres_virtual = var->yres; 1027#else 1028 var->yres_virtual = var->yres; 1029#endif 1030 1031 if (dinfo->accel) 1032 var->accel_flags |= FB_ACCELF_TEXT; 1033 else 1034 var->accel_flags &= ~FB_ACCELF_TEXT; 1035 1036 return 0; 1037} 1038 1039static int __devinit 1040intelfb_set_fbinfo(struct intelfb_info *dinfo) 1041{ 1042 struct fb_info *info = dinfo->info; 1043 1044 DBG_MSG("intelfb_set_fbinfo\n"); 1045 1046 info->flags = FBINFO_FLAG_DEFAULT; 1047 info->fbops = &intel_fb_ops; 1048 info->pseudo_palette = dinfo->pseudo_palette; 1049 1050 info->pixmap.size = 64*1024; 1051 info->pixmap.buf_align = 8; 1052 info->pixmap.access_align = 32; 1053 info->pixmap.flags = FB_PIXMAP_SYSTEM; 1054 1055 if (intelfb_init_var(dinfo)) 1056 return 1; 1057 1058 info->pixmap.scan_align = 1; 1059 strcpy(info->fix.id, dinfo->name); 1060 info->fix.smem_start = dinfo->fb.physical; 1061 info->fix.smem_len = dinfo->fb.size; 1062 info->fix.type = FB_TYPE_PACKED_PIXELS; 1063 info->fix.type_aux = 0; 1064 info->fix.xpanstep = 8; 1065 info->fix.ypanstep = 1; 1066 info->fix.ywrapstep = 0; 1067 info->fix.mmio_start = dinfo->mmio_base_phys; 1068 info->fix.mmio_len = INTEL_REG_SIZE; 1069 info->fix.accel = FB_ACCEL_I830; 1070 update_dinfo(dinfo, &info->var); 1071 1072 return 0; 1073} 1074 1075/* Update dinfo to match the active video mode. */ 1076static void 1077update_dinfo(struct intelfb_info *dinfo, struct fb_var_screeninfo *var) 1078{ 1079 DBG_MSG("update_dinfo\n"); 1080 1081 dinfo->bpp = var->bits_per_pixel; 1082 dinfo->depth = intelfb_var_to_depth(var); 1083 dinfo->xres = var->xres; 1084 dinfo->yres = var->xres; 1085 dinfo->pixclock = var->pixclock; 1086 1087 dinfo->info->fix.visual = dinfo->visual; 1088 dinfo->info->fix.line_length = dinfo->pitch; 1089 1090 switch (dinfo->bpp) { 1091 case 8: 1092 dinfo->visual = FB_VISUAL_PSEUDOCOLOR; 1093 dinfo->pitch = var->xres_virtual; 1094 break; 1095 case 16: 1096 dinfo->visual = FB_VISUAL_TRUECOLOR; 1097 dinfo->pitch = var->xres_virtual * 2; 1098 break; 1099 case 32: 1100 dinfo->visual = FB_VISUAL_TRUECOLOR; 1101 dinfo->pitch = var->xres_virtual * 4; 1102 break; 1103 } 1104 1105 /* Make sure the line length is a aligned correctly. */ 1106 if (IS_I9XX(dinfo)) 1107 dinfo->pitch = ROUND_UP_TO(dinfo->pitch, STRIDE_ALIGNMENT_I9XX); 1108 else 1109 dinfo->pitch = ROUND_UP_TO(dinfo->pitch, STRIDE_ALIGNMENT); 1110 1111 if (FIXED_MODE(dinfo)) 1112 dinfo->pitch = dinfo->initial_pitch; 1113 1114 dinfo->info->screen_base = (char __iomem *)dinfo->fb.virtual; 1115 dinfo->info->fix.line_length = dinfo->pitch; 1116 dinfo->info->fix.visual = dinfo->visual; 1117} 1118 1119/* fbops functions */ 1120 1121/*************************************************************** 1122 * fbdev interface * 1123 ***************************************************************/ 1124 1125static int 1126intelfb_open(struct fb_info *info, int user) 1127{ 1128 struct intelfb_info *dinfo = GET_DINFO(info); 1129 1130 if (user) { 1131 dinfo->open++; 1132 } 1133 1134 return 0; 1135} 1136 1137static int 1138intelfb_release(struct fb_info *info, int user) 1139{ 1140 struct intelfb_info *dinfo = GET_DINFO(info); 1141 1142 if (user) { 1143 dinfo->open--; 1144 msleep(1); 1145 if (!dinfo->open) { 1146 intelfbhw_disable_irq(dinfo); 1147 } 1148 } 1149 1150 return 0; 1151} 1152 1153static int 1154intelfb_check_var(struct fb_var_screeninfo *var, struct fb_info *info) 1155{ 1156 int change_var = 0; 1157 struct fb_var_screeninfo v; 1158 struct intelfb_info *dinfo; 1159 static int first = 1; 1160 int i; 1161 /* Good pitches to allow tiling. Don't care about pitches < 1024. */ 1162 static const int pitches[] = { 1163 128 * 8, 1164 128 * 16, 1165 128 * 32, 1166 128 * 64, 1167 0 1168 }; 1169 1170 DBG_MSG("intelfb_check_var: accel_flags is %d\n", var->accel_flags); 1171 1172 dinfo = GET_DINFO(info); 1173 1174 /* update the pitch */ 1175 if (intelfbhw_validate_mode(dinfo, var) != 0) 1176 return -EINVAL; 1177 1178 v = *var; 1179 1180 for (i = 0; pitches[i] != 0; i++) { 1181 if (pitches[i] >= v.xres_virtual) { 1182 v.xres_virtual = pitches[i]; 1183 break; 1184 } 1185 } 1186 1187 /* Check for a supported bpp. */ 1188 if (v.bits_per_pixel <= 8) { 1189 v.bits_per_pixel = 8; 1190 } else if (v.bits_per_pixel <= 16) { 1191 if (v.bits_per_pixel == 16) 1192 v.green.length = 6; 1193 v.bits_per_pixel = 16; 1194 } else if (v.bits_per_pixel <= 32) { 1195 v.bits_per_pixel = 32; 1196 } else 1197 return -EINVAL; 1198 1199 change_var = ((info->var.xres != var->xres) || 1200 (info->var.yres != var->yres) || 1201 (info->var.xres_virtual != var->xres_virtual) || 1202 (info->var.yres_virtual != var->yres_virtual) || 1203 (info->var.bits_per_pixel != var->bits_per_pixel) || 1204 memcmp(&info->var.red, &var->red, sizeof(var->red)) || 1205 memcmp(&info->var.green, &var->green, 1206 sizeof(var->green)) || 1207 memcmp(&info->var.blue, &var->blue, sizeof(var->blue))); 1208 1209 if (FIXED_MODE(dinfo) && 1210 (change_var || 1211 var->yres_virtual > dinfo->initial_var.yres_virtual || 1212 var->yres_virtual < dinfo->initial_var.yres || 1213 var->xoffset || var->nonstd)) { 1214 if (first) { 1215 ERR_MSG("Changing the video mode is not supported.\n"); 1216 first = 0; 1217 } 1218 return -EINVAL; 1219 } 1220 1221 switch (intelfb_var_to_depth(&v)) { 1222 case 8: 1223 v.red.offset = v.green.offset = v.blue.offset = 0; 1224 v.red.length = v.green.length = v.blue.length = 8; 1225 v.transp.offset = v.transp.length = 0; 1226 break; 1227 case 15: 1228 v.red.offset = 10; 1229 v.green.offset = 5; 1230 v.blue.offset = 0; 1231 v.red.length = v.green.length = v.blue.length = 5; 1232 v.transp.offset = v.transp.length = 0; 1233 break; 1234 case 16: 1235 v.red.offset = 11; 1236 v.green.offset = 5; 1237 v.blue.offset = 0; 1238 v.red.length = 5; 1239 v.green.length = 6; 1240 v.blue.length = 5; 1241 v.transp.offset = v.transp.length = 0; 1242 break; 1243 case 24: 1244 v.red.offset = 16; 1245 v.green.offset = 8; 1246 v.blue.offset = 0; 1247 v.red.length = v.green.length = v.blue.length = 8; 1248 v.transp.offset = v.transp.length = 0; 1249 break; 1250 case 32: 1251 v.red.offset = 16; 1252 v.green.offset = 8; 1253 v.blue.offset = 0; 1254 v.red.length = v.green.length = v.blue.length = 8; 1255 v.transp.offset = 24; 1256 v.transp.length = 8; 1257 break; 1258 } 1259 1260 if (v.xoffset < 0) 1261 v.xoffset = 0; 1262 if (v.yoffset < 0) 1263 v.yoffset = 0; 1264 1265 if (v.xoffset > v.xres_virtual - v.xres) 1266 v.xoffset = v.xres_virtual - v.xres; 1267 if (v.yoffset > v.yres_virtual - v.yres) 1268 v.yoffset = v.yres_virtual - v.yres; 1269 1270 v.red.msb_right = v.green.msb_right = v.blue.msb_right = 1271 v.transp.msb_right = 0; 1272 1273 *var = v; 1274 1275 return 0; 1276} 1277 1278static int 1279intelfb_set_par(struct fb_info *info) 1280{ 1281 struct intelfb_hwstate *hw; 1282 struct intelfb_info *dinfo = GET_DINFO(info); 1283 1284 if (FIXED_MODE(dinfo)) { 1285 ERR_MSG("Changing the video mode is not supported.\n"); 1286 return -EINVAL; 1287 } 1288 1289 hw = kmalloc(sizeof(*hw), GFP_ATOMIC); 1290 if (!hw) 1291 return -ENOMEM; 1292 1293 DBG_MSG("intelfb_set_par (%dx%d-%d)\n", info->var.xres, 1294 info->var.yres, info->var.bits_per_pixel); 1295 1296 intelfb_blank(FB_BLANK_POWERDOWN, info); 1297 1298 if (ACCEL(dinfo, info)) 1299 intelfbhw_2d_stop(dinfo); 1300 1301 memcpy(hw, &dinfo->save_state, sizeof(*hw)); 1302 if (intelfbhw_mode_to_hw(dinfo, hw, &info->var)) 1303 goto invalid_mode; 1304 if (intelfbhw_program_mode(dinfo, hw, 0)) 1305 goto invalid_mode; 1306 1307#if REGDUMP > 0 1308 intelfbhw_read_hw_state(dinfo, hw, 0); 1309 intelfbhw_print_hw_state(dinfo, hw); 1310#endif 1311 1312 update_dinfo(dinfo, &info->var); 1313 1314 if (ACCEL(dinfo, info)) 1315 intelfbhw_2d_start(dinfo); 1316 1317 intelfb_pan_display(&info->var, info); 1318 1319 intelfb_blank(FB_BLANK_UNBLANK, info); 1320 1321 if (ACCEL(dinfo, info)) { 1322 info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN | 1323 FBINFO_HWACCEL_COPYAREA | FBINFO_HWACCEL_FILLRECT | 1324 FBINFO_HWACCEL_IMAGEBLIT; 1325 } else { 1326 info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN; 1327 } 1328 kfree(hw); 1329 return 0; 1330invalid_mode: 1331 kfree(hw); 1332 return -EINVAL; 1333} 1334 1335static int 1336intelfb_setcolreg(unsigned regno, unsigned red, unsigned green, 1337 unsigned blue, unsigned transp, struct fb_info *info) 1338{ 1339 struct intelfb_info *dinfo = GET_DINFO(info); 1340 1341#if VERBOSE > 0 1342 DBG_MSG("intelfb_setcolreg: regno %d, depth %d\n", regno, dinfo->depth); 1343#endif 1344 1345 if (regno > 255) 1346 return 1; 1347 1348 if (dinfo->depth == 8) { 1349 red >>= 8; 1350 green >>= 8; 1351 blue >>= 8; 1352 1353 intelfbhw_setcolreg(dinfo, regno, red, green, blue, 1354 transp); 1355 } 1356 1357 if (regno < 16) { 1358 switch (dinfo->depth) { 1359 case 15: 1360 dinfo->pseudo_palette[regno] = ((red & 0xf800) >> 1) | 1361 ((green & 0xf800) >> 6) | 1362 ((blue & 0xf800) >> 11); 1363 break; 1364 case 16: 1365 dinfo->pseudo_palette[regno] = (red & 0xf800) | 1366 ((green & 0xfc00) >> 5) | 1367 ((blue & 0xf800) >> 11); 1368 break; 1369 case 24: 1370 dinfo->pseudo_palette[regno] = ((red & 0xff00) << 8) | 1371 (green & 0xff00) | 1372 ((blue & 0xff00) >> 8); 1373 break; 1374 } 1375 } 1376 1377 return 0; 1378} 1379 1380static int 1381intelfb_blank(int blank, struct fb_info *info) 1382{ 1383 intelfbhw_do_blank(blank, info); 1384 return 0; 1385} 1386 1387static int 1388intelfb_pan_display(struct fb_var_screeninfo *var, struct fb_info *info) 1389{ 1390 intelfbhw_pan_display(var, info); 1391 return 0; 1392} 1393 1394/* When/if we have our own ioctls. */ 1395static int 1396intelfb_ioctl(struct fb_info *info, unsigned int cmd, unsigned long arg) 1397{ 1398 int retval = 0; 1399 struct intelfb_info *dinfo = GET_DINFO(info); 1400 u32 pipe = 0; 1401 1402 switch (cmd) { 1403 case FBIO_WAITFORVSYNC: 1404 if (get_user(pipe, (__u32 __user *)arg)) 1405 return -EFAULT; 1406 1407 retval = intelfbhw_wait_for_vsync(dinfo, pipe); 1408 break; 1409 default: 1410 break; 1411 } 1412 1413 return retval; 1414} 1415 1416static void 1417intelfb_fillrect (struct fb_info *info, const struct fb_fillrect *rect) 1418{ 1419 struct intelfb_info *dinfo = GET_DINFO(info); 1420 u32 rop, color; 1421 1422#if VERBOSE > 0 1423 DBG_MSG("intelfb_fillrect\n"); 1424#endif 1425 1426 if (!ACCEL(dinfo, info) || dinfo->depth == 4) 1427 return cfb_fillrect(info, rect); 1428 1429 if (rect->rop == ROP_COPY) 1430 rop = PAT_ROP_GXCOPY; 1431 else // ROP_XOR 1432 rop = PAT_ROP_GXXOR; 1433 1434 if (dinfo->depth != 8) 1435 color = dinfo->pseudo_palette[rect->color]; 1436 else 1437 color = rect->color; 1438 1439 intelfbhw_do_fillrect(dinfo, rect->dx, rect->dy, 1440 rect->width, rect->height, color, 1441 dinfo->pitch, info->var.bits_per_pixel, 1442 rop); 1443} 1444 1445static void 1446intelfb_copyarea(struct fb_info *info, const struct fb_copyarea *region) 1447{ 1448 struct intelfb_info *dinfo = GET_DINFO(info); 1449 1450#if VERBOSE > 0 1451 DBG_MSG("intelfb_copyarea\n"); 1452#endif 1453 1454 if (!ACCEL(dinfo, info) || dinfo->depth == 4) 1455 return cfb_copyarea(info, region); 1456 1457 intelfbhw_do_bitblt(dinfo, region->sx, region->sy, region->dx, 1458 region->dy, region->width, region->height, 1459 dinfo->pitch, info->var.bits_per_pixel); 1460} 1461 1462static void 1463intelfb_imageblit(struct fb_info *info, const struct fb_image *image) 1464{ 1465 struct intelfb_info *dinfo = GET_DINFO(info); 1466 u32 fgcolor, bgcolor; 1467 1468#if VERBOSE > 0 1469 DBG_MSG("intelfb_imageblit\n"); 1470#endif 1471 1472 if (!ACCEL(dinfo, info) || dinfo->depth == 4 1473 || image->depth != 1) 1474 return cfb_imageblit(info, image); 1475 1476 if (dinfo->depth != 8) { 1477 fgcolor = dinfo->pseudo_palette[image->fg_color]; 1478 bgcolor = dinfo->pseudo_palette[image->bg_color]; 1479 } else { 1480 fgcolor = image->fg_color; 1481 bgcolor = image->bg_color; 1482 } 1483 1484 if (!intelfbhw_do_drawglyph(dinfo, fgcolor, bgcolor, image->width, 1485 image->height, image->data, 1486 image->dx, image->dy, 1487 dinfo->pitch, info->var.bits_per_pixel)) 1488 return cfb_imageblit(info, image); 1489} 1490 1491static int 1492intelfb_cursor(struct fb_info *info, struct fb_cursor *cursor) 1493{ 1494 struct intelfb_info *dinfo = GET_DINFO(info); 1495 u32 physical; 1496#if VERBOSE > 0 1497 DBG_MSG("intelfb_cursor\n"); 1498#endif 1499 1500 if (!dinfo->hwcursor) 1501 return -ENODEV; 1502 1503 intelfbhw_cursor_hide(dinfo); 1504 1505 /* If XFree killed the cursor - restore it */ 1506 physical = (dinfo->mobile || IS_I9XX(dinfo)) ? dinfo->cursor.physical : 1507 (dinfo->cursor.offset << 12); 1508 1509 if (INREG(CURSOR_A_BASEADDR) != physical) { 1510 u32 fg, bg; 1511 1512 DBG_MSG("the cursor was killed - restore it !!\n"); 1513 DBG_MSG("size %d, %d pos %d, %d\n", 1514 cursor->image.width, cursor->image.height, 1515 cursor->image.dx, cursor->image.dy); 1516 1517 intelfbhw_cursor_init(dinfo); 1518 intelfbhw_cursor_reset(dinfo); 1519 intelfbhw_cursor_setpos(dinfo, cursor->image.dx, 1520 cursor->image.dy); 1521 1522 if (dinfo->depth != 8) { 1523 fg =dinfo->pseudo_palette[cursor->image.fg_color]; 1524 bg =dinfo->pseudo_palette[cursor->image.bg_color]; 1525 } else { 1526 fg = cursor->image.fg_color; 1527 bg = cursor->image.bg_color; 1528 } 1529 intelfbhw_cursor_setcolor(dinfo, bg, fg); 1530 intelfbhw_cursor_load(dinfo, cursor->image.width, 1531 cursor->image.height, 1532 dinfo->cursor_src); 1533 1534 if (cursor->enable) 1535 intelfbhw_cursor_show(dinfo); 1536 return 0; 1537 } 1538 1539 if (cursor->set & FB_CUR_SETPOS) { 1540 u32 dx, dy; 1541 1542 dx = cursor->image.dx - info->var.xoffset; 1543 dy = cursor->image.dy - info->var.yoffset; 1544 1545 intelfbhw_cursor_setpos(dinfo, dx, dy); 1546 } 1547 1548 if (cursor->set & FB_CUR_SETSIZE) { 1549 if (cursor->image.width > 64 || cursor->image.height > 64) 1550 return -ENXIO; 1551 1552 intelfbhw_cursor_reset(dinfo); 1553 } 1554 1555 if (cursor->set & FB_CUR_SETCMAP) { 1556 u32 fg, bg; 1557 1558 if (dinfo->depth != 8) { 1559 fg = dinfo->pseudo_palette[cursor->image.fg_color]; 1560 bg = dinfo->pseudo_palette[cursor->image.bg_color]; 1561 } else { 1562 fg = cursor->image.fg_color; 1563 bg = cursor->image.bg_color; 1564 } 1565 1566 intelfbhw_cursor_setcolor(dinfo, bg, fg); 1567 } 1568 1569 if (cursor->set & (FB_CUR_SETSHAPE | FB_CUR_SETIMAGE)) { 1570 u32 s_pitch = (ROUND_UP_TO(cursor->image.width, 8) / 8); 1571 u32 size = s_pitch * cursor->image.height; 1572 u8 *dat = (u8 *) cursor->image.data; 1573 u8 *msk = (u8 *) cursor->mask; 1574 u8 src[64]; 1575 u32 i; 1576 1577 if (cursor->image.depth != 1) 1578 return -ENXIO; 1579 1580 switch (cursor->rop) { 1581 case ROP_XOR: 1582 for (i = 0; i < size; i++) 1583 src[i] = dat[i] ^ msk[i]; 1584 break; 1585 case ROP_COPY: 1586 default: 1587 for (i = 0; i < size; i++) 1588 src[i] = dat[i] & msk[i]; 1589 break; 1590 } 1591 1592 /* save the bitmap to restore it when XFree will 1593 make the cursor dirty */ 1594 memcpy(dinfo->cursor_src, src, size); 1595 1596 intelfbhw_cursor_load(dinfo, cursor->image.width, 1597 cursor->image.height, src); 1598 } 1599 1600 if (cursor->enable) 1601 intelfbhw_cursor_show(dinfo); 1602 1603 return 0; 1604} 1605 1606static int 1607intelfb_sync(struct fb_info *info) 1608{ 1609 struct intelfb_info *dinfo = GET_DINFO(info); 1610 1611#if VERBOSE > 0 1612 DBG_MSG("intelfb_sync\n"); 1613#endif 1614 1615 if (dinfo->ring_lockup) 1616 return 0; 1617 1618 intelfbhw_do_sync(dinfo); 1619 return 0; 1620} 1621