1/* 2 * intelfb 3 * 4 * Linux framebuffer driver for Intel(R) 830M/845G/852GM/855GM/865G/915G/915GM/ 5 * 945G/945GM/945GME/965G/965GM 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 * Changes: 26 * 01/2003 - Initial driver (0.1.0), no mode switching, no acceleration. 27 * This initial version is a basic core that works a lot like 28 * the vesafb driver. It must be built-in to the kernel, 29 * and the initial video mode must be set with vga=XXX at 30 * boot time. (David Dawes) 31 * 32 * 01/2003 - Version 0.2.0: Mode switching added, colormap support 33 * implemented, Y panning, and soft screen blanking implemented. 34 * No acceleration yet. (David Dawes) 35 * 36 * 01/2003 - Version 0.3.0: fbcon acceleration support added. Module 37 * option handling added. (David Dawes) 38 * 39 * 01/2003 - Version 0.4.0: fbcon HW cursor support added. (David Dawes) 40 * 41 * 01/2003 - Version 0.4.1: Add auto-generation of built-in modes. 42 * (David Dawes) 43 * 44 * 02/2003 - Version 0.4.2: Add check for active non-CRT devices, and 45 * mode validation checks. (David Dawes) 46 * 47 * 02/2003 - Version 0.4.3: Check when the VC is in graphics mode so that 48 * acceleration is disabled while an XFree86 server is running. 49 * (David Dawes) 50 * 51 * 02/2003 - Version 0.4.4: Monitor DPMS support. (David Dawes) 52 * 53 * 02/2003 - Version 0.4.5: Basic XFree86 + fbdev working. (David Dawes) 54 * 55 * 02/2003 - Version 0.5.0: Modify to work with the 2.5.32 kernel as well 56 * as 2.4.x kernels. (David Dawes) 57 * 58 * 02/2003 - Version 0.6.0: Split out HW-specifics into a separate file. 59 * (David Dawes) 60 * 61 * 02/2003 - Version 0.7.0: Test on 852GM/855GM. Acceleration and HW 62 * cursor are disabled on this platform. (David Dawes) 63 * 64 * 02/2003 - Version 0.7.1: Test on 845G. Acceleration is disabled 65 * on this platform. (David Dawes) 66 * 67 * 02/2003 - Version 0.7.2: Test on 830M. Acceleration and HW 68 * cursor are disabled on this platform. (David Dawes) 69 * 70 * 02/2003 - Version 0.7.3: Fix 8-bit modes for mobile platforms 71 * (David Dawes) 72 * 73 * 02/2003 - Version 0.7.4: Add checks for FB and FBCON_HAS_CFB* configured 74 * in the kernel, and add mode bpp verification and default 75 * bpp selection based on which FBCON_HAS_CFB* are configured. 76 * (David Dawes) 77 * 78 * 02/2003 - Version 0.7.5: Add basic package/install scripts based on the 79 * DRI packaging scripts. (David Dawes) 80 * 81 * 04/2003 - Version 0.7.6: Fix typo that affects builds with SMP-enabled 82 * kernels. (David Dawes, reported by Anupam). 83 * 84 * 06/2003 - Version 0.7.7: 85 * Fix Makefile.kernel build problem (Tsutomu Yasuda). 86 * Fix mis-placed #endif (2.4.21 kernel). 87 * 88 * 09/2004 - Version 0.9.0 - by Sylvain Meyer 89 * Port to linux 2.6 kernel fbdev 90 * Fix HW accel and HW cursor on i845G 91 * Use of agpgart for fb memory reservation 92 * Add mtrr support 93 * 94 * 10/2004 - Version 0.9.1 95 * Use module_param instead of old MODULE_PARM 96 * Some cleanup 97 * 98 * 11/2004 - Version 0.9.2 99 * Add vram option to reserve more memory than stolen by BIOS 100 * Fix intelfbhw_pan_display typo 101 * Add __initdata annotations 102 * 103 * 04/2008 - Version 0.9.5 104 * Add support for 965G/965GM. (Maik Broemme <mbroemme@plusserver.de>) 105 * 106 * 08/2008 - Version 0.9.6 107 * Add support for 945GME. (Phil Endecott <spam_from_intelfb@chezphil.org>) 108 */ 109 110#include <linux/module.h> 111#include <linux/kernel.h> 112#include <linux/errno.h> 113#include <linux/string.h> 114#include <linux/mm.h> 115#include <linux/slab.h> 116#include <linux/delay.h> 117#include <linux/fb.h> 118#include <linux/ioport.h> 119#include <linux/init.h> 120#include <linux/pci.h> 121#include <linux/vmalloc.h> 122#include <linux/pagemap.h> 123#include <linux/screen_info.h> 124 125#include <asm/io.h> 126 127#include "intelfb.h" 128#include "intelfbhw.h" 129#include "../edid.h" 130 131static void get_initial_mode(struct intelfb_info *dinfo); 132static void update_dinfo(struct intelfb_info *dinfo, 133 struct fb_var_screeninfo *var); 134static int intelfb_open(struct fb_info *info, int user); 135static int intelfb_release(struct fb_info *info, int user); 136static int intelfb_check_var(struct fb_var_screeninfo *var, 137 struct fb_info *info); 138static int intelfb_set_par(struct fb_info *info); 139static int intelfb_setcolreg(unsigned regno, unsigned red, unsigned green, 140 unsigned blue, unsigned transp, 141 struct fb_info *info); 142 143static int intelfb_blank(int blank, struct fb_info *info); 144static int intelfb_pan_display(struct fb_var_screeninfo *var, 145 struct fb_info *info); 146 147static void intelfb_fillrect(struct fb_info *info, 148 const struct fb_fillrect *rect); 149static void intelfb_copyarea(struct fb_info *info, 150 const struct fb_copyarea *region); 151static void intelfb_imageblit(struct fb_info *info, 152 const struct fb_image *image); 153static int intelfb_cursor(struct fb_info *info, 154 struct fb_cursor *cursor); 155 156static int intelfb_sync(struct fb_info *info); 157 158static int intelfb_ioctl(struct fb_info *info, 159 unsigned int cmd, unsigned long arg); 160 161static int intelfb_pci_register(struct pci_dev *pdev, 162 const struct pci_device_id *ent); 163static void intelfb_pci_unregister(struct pci_dev *pdev); 164static int intelfb_set_fbinfo(struct intelfb_info *dinfo); 165 166/* 167 * Limiting the class to PCI_CLASS_DISPLAY_VGA prevents function 1 of the 168 * mobile chipsets from being registered. 169 */ 170#if DETECT_VGA_CLASS_ONLY 171#define INTELFB_CLASS_MASK ~0 << 8 172#else 173#define INTELFB_CLASS_MASK 0 174#endif 175 176static const struct pci_device_id intelfb_pci_table[] = { 177 { 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 }, 178 { 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 }, 179 { 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 }, 180 { 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 }, 181 { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_854, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, INTELFB_CLASS_MASK, INTEL_854 }, 182 { 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 }, 183 { 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 }, 184 { 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 }, 185 { 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 }, 186 { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_945GME, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, INTELFB_CLASS_MASK, INTEL_945GME }, 187 { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_965G, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, INTELFB_CLASS_MASK, INTEL_965G }, 188 { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_965GM, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, INTELFB_CLASS_MASK, INTEL_965GM }, 189 { 0, } 190}; 191 192/* Global data */ 193static int num_registered = 0; 194 195/* fb ops */ 196static const struct fb_ops intel_fb_ops = { 197 .owner = THIS_MODULE, 198 .fb_open = intelfb_open, 199 .fb_release = intelfb_release, 200 .fb_check_var = intelfb_check_var, 201 .fb_set_par = intelfb_set_par, 202 .fb_setcolreg = intelfb_setcolreg, 203 .fb_blank = intelfb_blank, 204 .fb_pan_display = intelfb_pan_display, 205 .fb_fillrect = intelfb_fillrect, 206 .fb_copyarea = intelfb_copyarea, 207 .fb_imageblit = intelfb_imageblit, 208 .fb_cursor = intelfb_cursor, 209 .fb_sync = intelfb_sync, 210 .fb_ioctl = intelfb_ioctl 211}; 212 213/* PCI driver module table */ 214static struct pci_driver intelfb_driver = { 215 .name = "intelfb", 216 .id_table = intelfb_pci_table, 217 .probe = intelfb_pci_register, 218 .remove = intelfb_pci_unregister, 219}; 220 221/* Module description/parameters */ 222MODULE_AUTHOR("David Dawes <dawes@tungstengraphics.com>, " 223 "Sylvain Meyer <sylvain.meyer@worldonline.fr>"); 224MODULE_DESCRIPTION("Framebuffer driver for Intel(R) " SUPPORTED_CHIPSETS 225 " chipsets"); 226MODULE_LICENSE("Dual BSD/GPL"); 227MODULE_DEVICE_TABLE(pci, intelfb_pci_table); 228 229static bool accel = 1; 230static int vram = 4; 231static bool hwcursor = 0; 232static bool mtrr = 1; 233static bool fixed = 0; 234static bool noinit = 0; 235static bool noregister = 0; 236static bool probeonly = 0; 237static bool idonly = 0; 238static int bailearly = 0; 239static int voffset = 48; 240static char *mode = NULL; 241 242module_param(accel, bool, S_IRUGO); 243MODULE_PARM_DESC(accel, "Enable hardware acceleration"); 244module_param(vram, int, S_IRUGO); 245MODULE_PARM_DESC(vram, "System RAM to allocate to framebuffer in MiB"); 246module_param(voffset, int, S_IRUGO); 247MODULE_PARM_DESC(voffset, "Offset of framebuffer in MiB"); 248module_param(hwcursor, bool, S_IRUGO); 249MODULE_PARM_DESC(hwcursor, "Enable HW cursor"); 250module_param(mtrr, bool, S_IRUGO); 251MODULE_PARM_DESC(mtrr, "Enable MTRR support"); 252module_param(fixed, bool, S_IRUGO); 253MODULE_PARM_DESC(fixed, "Disable mode switching"); 254module_param(noinit, bool, 0); 255MODULE_PARM_DESC(noinit, "Don't initialise graphics mode when loading"); 256module_param(noregister, bool, 0); 257MODULE_PARM_DESC(noregister, "Don't register, just probe and exit (debug)"); 258module_param(probeonly, bool, 0); 259MODULE_PARM_DESC(probeonly, "Do a minimal probe (debug)"); 260module_param(idonly, bool, 0); 261MODULE_PARM_DESC(idonly, "Just identify without doing anything else (debug)"); 262module_param(bailearly, int, 0); 263MODULE_PARM_DESC(bailearly, "Bail out early, depending on value (debug)"); 264module_param(mode, charp, S_IRUGO); 265MODULE_PARM_DESC(mode, 266 "Initial video mode \"<xres>x<yres>[-<depth>][@<refresh>]\""); 267 268#ifndef MODULE 269#define OPT_EQUAL(opt, name) (!strncmp(opt, name, strlen(name))) 270#define OPT_INTVAL(opt, name) simple_strtoul(opt + strlen(name) + 1, NULL, 0) 271#define OPT_STRVAL(opt, name) (opt + strlen(name)) 272 273static __inline__ char * get_opt_string(const char *this_opt, const char *name) 274{ 275 const char *p; 276 int i; 277 char *ret; 278 279 p = OPT_STRVAL(this_opt, name); 280 i = 0; 281 while (p[i] && p[i] != ' ' && p[i] != ',') 282 i++; 283 ret = kmalloc(i + 1, GFP_KERNEL); 284 if (ret) { 285 strncpy(ret, p, i); 286 ret[i] = '\0'; 287 } 288 return ret; 289} 290 291static __inline__ int get_opt_int(const char *this_opt, const char *name, 292 int *ret) 293{ 294 if (!ret) 295 return 0; 296 297 if (!OPT_EQUAL(this_opt, name)) 298 return 0; 299 300 *ret = OPT_INTVAL(this_opt, name); 301 return 1; 302} 303 304static __inline__ int get_opt_bool(const char *this_opt, const char *name, 305 bool *ret) 306{ 307 if (!ret) 308 return 0; 309 310 if (OPT_EQUAL(this_opt, name)) { 311 if (this_opt[strlen(name)] == '=') 312 *ret = simple_strtoul(this_opt + strlen(name) + 1, 313 NULL, 0); 314 else 315 *ret = 1; 316 } else { 317 if (OPT_EQUAL(this_opt, "no") && OPT_EQUAL(this_opt + 2, name)) 318 *ret = 0; 319 else 320 return 0; 321 } 322 return 1; 323} 324 325static int __init intelfb_setup(char *options) 326{ 327 char *this_opt; 328 329 DBG_MSG("intelfb_setup\n"); 330 331 if (!options || !*options) { 332 DBG_MSG("no options\n"); 333 return 0; 334 } else 335 DBG_MSG("options: %s\n", options); 336 337 /* 338 * These are the built-in options analogous to the module parameters 339 * defined above. 340 * 341 * The syntax is: 342 * 343 * video=intelfb:[mode][,<param>=<val>] ... 344 * 345 * e.g., 346 * 347 * video=intelfb:1024x768-16@75,accel=0 348 */ 349 350 while ((this_opt = strsep(&options, ","))) { 351 if (!*this_opt) 352 continue; 353 if (get_opt_bool(this_opt, "accel", &accel)) 354 ; 355 else if (get_opt_int(this_opt, "vram", &vram)) 356 ; 357 else if (get_opt_bool(this_opt, "hwcursor", &hwcursor)) 358 ; 359 else if (get_opt_bool(this_opt, "mtrr", &mtrr)) 360 ; 361 else if (get_opt_bool(this_opt, "fixed", &fixed)) 362 ; 363 else if (get_opt_bool(this_opt, "init", &noinit)) 364 noinit = !noinit; 365 else if (OPT_EQUAL(this_opt, "mode=")) 366 mode = get_opt_string(this_opt, "mode="); 367 else 368 mode = this_opt; 369 } 370 371 return 0; 372} 373 374#endif 375 376static int __init intelfb_init(void) 377{ 378#ifndef MODULE 379 char *option = NULL; 380#endif 381 382 DBG_MSG("intelfb_init\n"); 383 384 INF_MSG("Framebuffer driver for " 385 "Intel(R) " SUPPORTED_CHIPSETS " chipsets\n"); 386 INF_MSG("Version " INTELFB_VERSION "\n"); 387 388 if (idonly) 389 return -ENODEV; 390 391#ifndef MODULE 392 if (fb_get_options("intelfb", &option)) 393 return -ENODEV; 394 intelfb_setup(option); 395#endif 396 397 return pci_register_driver(&intelfb_driver); 398} 399 400static void __exit intelfb_exit(void) 401{ 402 DBG_MSG("intelfb_exit\n"); 403 pci_unregister_driver(&intelfb_driver); 404} 405 406module_init(intelfb_init); 407module_exit(intelfb_exit); 408 409/*************************************************************** 410 * driver init / cleanup * 411 ***************************************************************/ 412 413static void cleanup(struct intelfb_info *dinfo) 414{ 415 DBG_MSG("cleanup\n"); 416 417 if (!dinfo) 418 return; 419 420 intelfbhw_disable_irq(dinfo); 421 422 fb_dealloc_cmap(&dinfo->info->cmap); 423 kfree(dinfo->info->pixmap.addr); 424 425 if (dinfo->registered) 426 unregister_framebuffer(dinfo->info); 427 428 arch_phys_wc_del(dinfo->wc_cookie); 429 430 if (dinfo->fbmem_gart && dinfo->gtt_fb_mem) { 431 agp_unbind_memory(dinfo->gtt_fb_mem); 432 agp_free_memory(dinfo->gtt_fb_mem); 433 } 434 if (dinfo->gtt_cursor_mem) { 435 agp_unbind_memory(dinfo->gtt_cursor_mem); 436 agp_free_memory(dinfo->gtt_cursor_mem); 437 } 438 if (dinfo->gtt_ring_mem) { 439 agp_unbind_memory(dinfo->gtt_ring_mem); 440 agp_free_memory(dinfo->gtt_ring_mem); 441 } 442 443#ifdef CONFIG_FB_INTEL_I2C 444 /* un-register I2C bus */ 445 intelfb_delete_i2c_busses(dinfo); 446#endif 447 448 if (dinfo->mmio_base) 449 iounmap((void __iomem *)dinfo->mmio_base); 450 if (dinfo->aperture.virtual) 451 iounmap((void __iomem *)dinfo->aperture.virtual); 452 453 if (dinfo->flag & INTELFB_MMIO_ACQUIRED) 454 release_mem_region(dinfo->mmio_base_phys, INTEL_REG_SIZE); 455 if (dinfo->flag & INTELFB_FB_ACQUIRED) 456 release_mem_region(dinfo->aperture.physical, 457 dinfo->aperture.size); 458 framebuffer_release(dinfo->info); 459} 460 461#define bailout(dinfo) do { \ 462 DBG_MSG("bailout\n"); \ 463 cleanup(dinfo); \ 464 INF_MSG("Not going to register framebuffer, exiting...\n"); \ 465 return -ENODEV; \ 466} while (0) 467 468 469static int intelfb_pci_register(struct pci_dev *pdev, 470 const struct pci_device_id *ent) 471{ 472 struct fb_info *info; 473 struct intelfb_info *dinfo; 474 int i, err, dvo; 475 int aperture_size, stolen_size; 476 struct agp_kern_info gtt_info; 477 int agp_memtype; 478 const char *s; 479 struct agp_bridge_data *bridge; 480 int aperture_bar = 0; 481 int mmio_bar = 1; 482 int offset; 483 484 DBG_MSG("intelfb_pci_register\n"); 485 486 num_registered++; 487 if (num_registered != 1) { 488 ERR_MSG("Attempted to register %d devices " 489 "(should be only 1).\n", num_registered); 490 return -ENODEV; 491 } 492 493 info = framebuffer_alloc(sizeof(struct intelfb_info), &pdev->dev); 494 if (!info) 495 return -ENOMEM; 496 497 if (fb_alloc_cmap(&info->cmap, 256, 1) < 0) { 498 ERR_MSG("Could not allocate cmap for intelfb_info.\n"); 499 goto err_out_cmap; 500 } 501 502 dinfo = info->par; 503 dinfo->info = info; 504 dinfo->fbops = &intel_fb_ops; 505 dinfo->pdev = pdev; 506 507 /* Reserve pixmap space. */ 508 info->pixmap.addr = kzalloc(64 * 1024, GFP_KERNEL); 509 if (info->pixmap.addr == NULL) { 510 ERR_MSG("Cannot reserve pixmap memory.\n"); 511 goto err_out_pixmap; 512 } 513 514 /* set early this option because it could be changed by tv encoder 515 driver */ 516 dinfo->fixed_mode = fixed; 517 518 /* Enable device. */ 519 if ((err = pci_enable_device(pdev))) { 520 ERR_MSG("Cannot enable device.\n"); 521 cleanup(dinfo); 522 return -ENODEV; 523 } 524 525 /* Set base addresses. */ 526 if ((ent->device == PCI_DEVICE_ID_INTEL_915G) || 527 (ent->device == PCI_DEVICE_ID_INTEL_915GM) || 528 (ent->device == PCI_DEVICE_ID_INTEL_945G) || 529 (ent->device == PCI_DEVICE_ID_INTEL_945GM) || 530 (ent->device == PCI_DEVICE_ID_INTEL_945GME) || 531 (ent->device == PCI_DEVICE_ID_INTEL_965G) || 532 (ent->device == PCI_DEVICE_ID_INTEL_965GM)) { 533 534 aperture_bar = 2; 535 mmio_bar = 0; 536 } 537 dinfo->aperture.physical = pci_resource_start(pdev, aperture_bar); 538 dinfo->aperture.size = pci_resource_len(pdev, aperture_bar); 539 dinfo->mmio_base_phys = pci_resource_start(pdev, mmio_bar); 540 DBG_MSG("fb aperture: 0x%llx/0x%llx, MMIO region: 0x%llx/0x%llx\n", 541 (unsigned long long)pci_resource_start(pdev, aperture_bar), 542 (unsigned long long)pci_resource_len(pdev, aperture_bar), 543 (unsigned long long)pci_resource_start(pdev, mmio_bar), 544 (unsigned long long)pci_resource_len(pdev, mmio_bar)); 545 546 /* Reserve the fb and MMIO regions */ 547 if (!request_mem_region(dinfo->aperture.physical, dinfo->aperture.size, 548 INTELFB_MODULE_NAME)) { 549 ERR_MSG("Cannot reserve FB region.\n"); 550 cleanup(dinfo); 551 return -ENODEV; 552 } 553 554 dinfo->flag |= INTELFB_FB_ACQUIRED; 555 556 if (!request_mem_region(dinfo->mmio_base_phys, 557 INTEL_REG_SIZE, 558 INTELFB_MODULE_NAME)) { 559 ERR_MSG("Cannot reserve MMIO region.\n"); 560 cleanup(dinfo); 561 return -ENODEV; 562 } 563 564 dinfo->flag |= INTELFB_MMIO_ACQUIRED; 565 566 /* Get the chipset info. */ 567 dinfo->pci_chipset = pdev->device; 568 569 if (intelfbhw_get_chipset(pdev, dinfo)) { 570 cleanup(dinfo); 571 return -ENODEV; 572 } 573 574 if (intelfbhw_get_memory(pdev, &aperture_size,&stolen_size)) { 575 cleanup(dinfo); 576 return -ENODEV; 577 } 578 579 INF_MSG("%02x:%02x.%d: %s, aperture size %dMB, " 580 "stolen memory %dkB\n", 581 pdev->bus->number, PCI_SLOT(pdev->devfn), 582 PCI_FUNC(pdev->devfn), dinfo->name, 583 BtoMB(aperture_size), BtoKB(stolen_size)); 584 585 /* Set these from the options. */ 586 dinfo->accel = accel; 587 dinfo->hwcursor = hwcursor; 588 589 if (NOACCEL_CHIPSET(dinfo) && dinfo->accel == 1) { 590 INF_MSG("Acceleration is not supported for the %s chipset.\n", 591 dinfo->name); 592 dinfo->accel = 0; 593 } 594 595 /* Framebuffer parameters - Use all the stolen memory if >= vram */ 596 if (ROUND_UP_TO_PAGE(stolen_size) >= MB(vram)) { 597 dinfo->fb.size = ROUND_UP_TO_PAGE(stolen_size); 598 dinfo->fbmem_gart = 0; 599 } else { 600 dinfo->fb.size = MB(vram); 601 dinfo->fbmem_gart = 1; 602 } 603 604 /* Allocate space for the ring buffer and HW cursor if enabled. */ 605 if (dinfo->accel) { 606 dinfo->ring.size = RINGBUFFER_SIZE; 607 dinfo->ring_tail_mask = dinfo->ring.size - 1; 608 } 609 if (dinfo->hwcursor) 610 dinfo->cursor.size = HW_CURSOR_SIZE; 611 612 /* Use agpgart to manage the GATT */ 613 if (!(bridge = agp_backend_acquire(pdev))) { 614 ERR_MSG("cannot acquire agp\n"); 615 cleanup(dinfo); 616 return -ENODEV; 617 } 618 619 /* get the current gatt info */ 620 if (agp_copy_info(bridge, >t_info)) { 621 ERR_MSG("cannot get agp info\n"); 622 agp_backend_release(bridge); 623 cleanup(dinfo); 624 return -ENODEV; 625 } 626 627 if (MB(voffset) < stolen_size) 628 offset = (stolen_size >> 12); 629 else 630 offset = ROUND_UP_TO_PAGE(MB(voffset))/GTT_PAGE_SIZE; 631 632 /* set the mem offsets - set them after the already used pages */ 633 if (dinfo->accel) 634 dinfo->ring.offset = offset + gtt_info.current_memory; 635 if (dinfo->hwcursor) 636 dinfo->cursor.offset = offset + 637 + gtt_info.current_memory + (dinfo->ring.size >> 12); 638 if (dinfo->fbmem_gart) 639 dinfo->fb.offset = offset + 640 + gtt_info.current_memory + (dinfo->ring.size >> 12) 641 + (dinfo->cursor.size >> 12); 642 643 /* Allocate memories (which aren't stolen) */ 644 /* Map the fb and MMIO regions */ 645 /* ioremap only up to the end of used aperture */ 646 dinfo->aperture.virtual = (u8 __iomem *)ioremap_wc 647 (dinfo->aperture.physical, ((offset + dinfo->fb.offset) << 12) 648 + dinfo->fb.size); 649 if (!dinfo->aperture.virtual) { 650 ERR_MSG("Cannot remap FB region.\n"); 651 agp_backend_release(bridge); 652 cleanup(dinfo); 653 return -ENODEV; 654 } 655 656 dinfo->mmio_base = 657 (u8 __iomem *)ioremap(dinfo->mmio_base_phys, 658 INTEL_REG_SIZE); 659 if (!dinfo->mmio_base) { 660 ERR_MSG("Cannot remap MMIO region.\n"); 661 agp_backend_release(bridge); 662 cleanup(dinfo); 663 return -ENODEV; 664 } 665 666 if (dinfo->accel) { 667 if (!(dinfo->gtt_ring_mem = 668 agp_allocate_memory(bridge, dinfo->ring.size >> 12, 669 AGP_NORMAL_MEMORY))) { 670 ERR_MSG("cannot allocate ring buffer memory\n"); 671 agp_backend_release(bridge); 672 cleanup(dinfo); 673 return -ENOMEM; 674 } 675 if (agp_bind_memory(dinfo->gtt_ring_mem, 676 dinfo->ring.offset)) { 677 ERR_MSG("cannot bind ring buffer memory\n"); 678 agp_backend_release(bridge); 679 cleanup(dinfo); 680 return -EBUSY; 681 } 682 dinfo->ring.physical = dinfo->aperture.physical 683 + (dinfo->ring.offset << 12); 684 dinfo->ring.virtual = dinfo->aperture.virtual 685 + (dinfo->ring.offset << 12); 686 dinfo->ring_head = 0; 687 } 688 if (dinfo->hwcursor) { 689 agp_memtype = dinfo->mobile ? AGP_PHYSICAL_MEMORY 690 : AGP_NORMAL_MEMORY; 691 if (!(dinfo->gtt_cursor_mem = 692 agp_allocate_memory(bridge, dinfo->cursor.size >> 12, 693 agp_memtype))) { 694 ERR_MSG("cannot allocate cursor memory\n"); 695 agp_backend_release(bridge); 696 cleanup(dinfo); 697 return -ENOMEM; 698 } 699 if (agp_bind_memory(dinfo->gtt_cursor_mem, 700 dinfo->cursor.offset)) { 701 ERR_MSG("cannot bind cursor memory\n"); 702 agp_backend_release(bridge); 703 cleanup(dinfo); 704 return -EBUSY; 705 } 706 if (dinfo->mobile) 707 dinfo->cursor.physical 708 = dinfo->gtt_cursor_mem->physical; 709 else 710 dinfo->cursor.physical = dinfo->aperture.physical 711 + (dinfo->cursor.offset << 12); 712 dinfo->cursor.virtual = dinfo->aperture.virtual 713 + (dinfo->cursor.offset << 12); 714 } 715 if (dinfo->fbmem_gart) { 716 if (!(dinfo->gtt_fb_mem = 717 agp_allocate_memory(bridge, dinfo->fb.size >> 12, 718 AGP_NORMAL_MEMORY))) { 719 WRN_MSG("cannot allocate framebuffer memory - use " 720 "the stolen one\n"); 721 dinfo->fbmem_gart = 0; 722 } 723 if (agp_bind_memory(dinfo->gtt_fb_mem, 724 dinfo->fb.offset)) { 725 WRN_MSG("cannot bind framebuffer memory - use " 726 "the stolen one\n"); 727 dinfo->fbmem_gart = 0; 728 } 729 } 730 731 /* update framebuffer memory parameters */ 732 if (!dinfo->fbmem_gart) 733 dinfo->fb.offset = 0; /* starts at offset 0 */ 734 dinfo->fb.physical = dinfo->aperture.physical 735 + (dinfo->fb.offset << 12); 736 dinfo->fb.virtual = dinfo->aperture.virtual + (dinfo->fb.offset << 12); 737 dinfo->fb_start = dinfo->fb.offset << 12; 738 739 /* release agpgart */ 740 agp_backend_release(bridge); 741 742 if (mtrr) 743 dinfo->wc_cookie = arch_phys_wc_add(dinfo->aperture.physical, 744 dinfo->aperture.size); 745 746 DBG_MSG("fb: 0x%x(+ 0x%x)/0x%x (0x%p)\n", 747 dinfo->fb.physical, dinfo->fb.offset, dinfo->fb.size, 748 dinfo->fb.virtual); 749 DBG_MSG("MMIO: 0x%x/0x%x (0x%p)\n", 750 dinfo->mmio_base_phys, INTEL_REG_SIZE, 751 dinfo->mmio_base); 752 DBG_MSG("ring buffer: 0x%x/0x%x (0x%p)\n", 753 dinfo->ring.physical, dinfo->ring.size, 754 dinfo->ring.virtual); 755 DBG_MSG("HW cursor: 0x%x/0x%x (0x%p) (offset 0x%x) (phys 0x%x)\n", 756 dinfo->cursor.physical, dinfo->cursor.size, 757 dinfo->cursor.virtual, dinfo->cursor.offset, 758 dinfo->cursor.physical); 759 760 DBG_MSG("options: vram = %d, accel = %d, hwcursor = %d, fixed = %d, " 761 "noinit = %d\n", vram, accel, hwcursor, fixed, noinit); 762 DBG_MSG("options: mode = \"%s\"\n", mode ? mode : ""); 763 764 if (probeonly) 765 bailout(dinfo); 766 767 /* 768 * Check if the LVDS port or any DVO ports are enabled. If so, 769 * don't allow mode switching 770 */ 771 dvo = intelfbhw_check_non_crt(dinfo); 772 if (dvo) { 773 dinfo->fixed_mode = 1; 774 WRN_MSG("Non-CRT device is enabled ( "); 775 i = 0; 776 while (dvo) { 777 if (dvo & 1) { 778 s = intelfbhw_dvo_to_string(1 << i); 779 if (s) 780 printk("%s ", s); 781 } 782 dvo >>= 1; 783 ++i; 784 } 785 printk("). Disabling mode switching.\n"); 786 } 787 788 if (bailearly == 1) 789 bailout(dinfo); 790 791 if (FIXED_MODE(dinfo) && 792 screen_info.orig_video_isVGA != VIDEO_TYPE_VLFB) { 793 ERR_MSG("Video mode must be programmed at boot time.\n"); 794 cleanup(dinfo); 795 return -ENODEV; 796 } 797 798 if (bailearly == 2) 799 bailout(dinfo); 800 801 /* Initialise dinfo and related data. */ 802 /* If an initial mode was programmed at boot time, get its details. */ 803 if (screen_info.orig_video_isVGA == VIDEO_TYPE_VLFB) 804 get_initial_mode(dinfo); 805 806 if (bailearly == 3) 807 bailout(dinfo); 808 809 if (FIXED_MODE(dinfo)) /* remap fb address */ 810 update_dinfo(dinfo, &dinfo->initial_var); 811 812 if (bailearly == 4) 813 bailout(dinfo); 814 815 816 if (intelfb_set_fbinfo(dinfo)) { 817 cleanup(dinfo); 818 return -ENODEV; 819 } 820 821 if (bailearly == 5) 822 bailout(dinfo); 823 824#ifdef CONFIG_FB_INTEL_I2C 825 /* register I2C bus */ 826 intelfb_create_i2c_busses(dinfo); 827#endif 828 829 if (bailearly == 6) 830 bailout(dinfo); 831 832 pci_set_drvdata(pdev, dinfo); 833 834 /* Save the initial register state. */ 835 i = intelfbhw_read_hw_state(dinfo, &dinfo->save_state, 836 bailearly > 6 ? bailearly - 6 : 0); 837 if (i != 0) { 838 DBG_MSG("intelfbhw_read_hw_state returned %d\n", i); 839 bailout(dinfo); 840 } 841 842 intelfbhw_print_hw_state(dinfo, &dinfo->save_state); 843 844 if (bailearly == 18) 845 bailout(dinfo); 846 847 /* read active pipe */ 848 dinfo->pipe = intelfbhw_active_pipe(&dinfo->save_state); 849 850 /* Cursor initialisation */ 851 if (dinfo->hwcursor) { 852 intelfbhw_cursor_init(dinfo); 853 intelfbhw_cursor_reset(dinfo); 854 } 855 856 if (bailearly == 19) 857 bailout(dinfo); 858 859 /* 2d acceleration init */ 860 if (dinfo->accel) 861 intelfbhw_2d_start(dinfo); 862 863 if (bailearly == 20) 864 bailout(dinfo); 865 866 if (noregister) 867 bailout(dinfo); 868 869 if (register_framebuffer(dinfo->info) < 0) { 870 ERR_MSG("Cannot register framebuffer.\n"); 871 cleanup(dinfo); 872 return -ENODEV; 873 } 874 875 dinfo->registered = 1; 876 dinfo->open = 0; 877 878 init_waitqueue_head(&dinfo->vsync.wait); 879 spin_lock_init(&dinfo->int_lock); 880 dinfo->irq_flags = 0; 881 dinfo->vsync.pan_display = 0; 882 dinfo->vsync.pan_offset = 0; 883 884 return 0; 885 886err_out_pixmap: 887 fb_dealloc_cmap(&info->cmap); 888err_out_cmap: 889 framebuffer_release(info); 890 return -ENODEV; 891} 892 893static void intelfb_pci_unregister(struct pci_dev *pdev) 894{ 895 struct intelfb_info *dinfo = pci_get_drvdata(pdev); 896 897 DBG_MSG("intelfb_pci_unregister\n"); 898 899 if (!dinfo) 900 return; 901 902 cleanup(dinfo); 903} 904 905/*************************************************************** 906 * helper functions * 907 ***************************************************************/ 908 909__inline__ int intelfb_var_to_depth(const struct fb_var_screeninfo *var) 910{ 911 DBG_MSG("intelfb_var_to_depth: bpp: %d, green.length is %d\n", 912 var->bits_per_pixel, var->green.length); 913 914 switch (var->bits_per_pixel) { 915 case 16: 916 return (var->green.length == 6) ? 16 : 15; 917 case 32: 918 return 24; 919 default: 920 return var->bits_per_pixel; 921 } 922} 923 924 925static __inline__ int var_to_refresh(const struct fb_var_screeninfo *var) 926{ 927 int xtot = var->xres + var->left_margin + var->right_margin + 928 var->hsync_len; 929 int ytot = var->yres + var->upper_margin + var->lower_margin + 930 var->vsync_len; 931 932 return (1000000000 / var->pixclock * 1000 + 500) / xtot / ytot; 933} 934 935/*************************************************************** 936 * Various initialisation functions * 937 ***************************************************************/ 938 939static void get_initial_mode(struct intelfb_info *dinfo) 940{ 941 struct fb_var_screeninfo *var; 942 int xtot, ytot; 943 944 DBG_MSG("get_initial_mode\n"); 945 946 dinfo->initial_vga = 1; 947 dinfo->initial_fb_base = screen_info.lfb_base; 948 dinfo->initial_video_ram = screen_info.lfb_size * KB(64); 949 dinfo->initial_pitch = screen_info.lfb_linelength; 950 951 var = &dinfo->initial_var; 952 memset(var, 0, sizeof(*var)); 953 var->xres = screen_info.lfb_width; 954 var->yres = screen_info.lfb_height; 955 var->bits_per_pixel = screen_info.lfb_depth; 956 switch (screen_info.lfb_depth) { 957 case 15: 958 var->bits_per_pixel = 16; 959 break; 960 case 24: 961 var->bits_per_pixel = 32; 962 break; 963 } 964 965 DBG_MSG("Initial info: FB is 0x%x/0x%x (%d kByte)\n", 966 dinfo->initial_fb_base, dinfo->initial_video_ram, 967 BtoKB(dinfo->initial_video_ram)); 968 969 DBG_MSG("Initial info: mode is %dx%d-%d (%d)\n", 970 var->xres, var->yres, var->bits_per_pixel, 971 dinfo->initial_pitch); 972 973 /* Dummy timing values (assume 60Hz) */ 974 var->left_margin = (var->xres / 8) & 0xf8; 975 var->right_margin = 32; 976 var->upper_margin = 16; 977 var->lower_margin = 4; 978 var->hsync_len = (var->xres / 8) & 0xf8; 979 var->vsync_len = 4; 980 981 xtot = var->xres + var->left_margin + 982 var->right_margin + var->hsync_len; 983 ytot = var->yres + var->upper_margin + 984 var->lower_margin + var->vsync_len; 985 var->pixclock = 10000000 / xtot * 1000 / ytot * 100 / 60; 986 987 var->height = -1; 988 var->width = -1; 989 990 if (var->bits_per_pixel > 8) { 991 var->red.offset = screen_info.red_pos; 992 var->red.length = screen_info.red_size; 993 var->green.offset = screen_info.green_pos; 994 var->green.length = screen_info.green_size; 995 var->blue.offset = screen_info.blue_pos; 996 var->blue.length = screen_info.blue_size; 997 var->transp.offset = screen_info.rsvd_pos; 998 var->transp.length = screen_info.rsvd_size; 999 } else { 1000 var->red.length = 8; 1001 var->green.length = 8; 1002 var->blue.length = 8; 1003 } 1004} 1005 1006static int intelfb_init_var(struct intelfb_info *dinfo) 1007{ 1008 struct fb_var_screeninfo *var; 1009 int msrc = 0; 1010 1011 DBG_MSG("intelfb_init_var\n"); 1012 1013 var = &dinfo->info->var; 1014 if (FIXED_MODE(dinfo)) { 1015 memcpy(var, &dinfo->initial_var, 1016 sizeof(struct fb_var_screeninfo)); 1017 msrc = 5; 1018 } else { 1019 const u8 *edid_s = fb_firmware_edid(&dinfo->pdev->dev); 1020 u8 *edid_d = NULL; 1021 1022 if (edid_s) { 1023 edid_d = kmemdup(edid_s, EDID_LENGTH, GFP_KERNEL); 1024 1025 if (edid_d) { 1026 fb_edid_to_monspecs(edid_d, 1027 &dinfo->info->monspecs); 1028 kfree(edid_d); 1029 } 1030 } 1031 1032 if (mode) { 1033 printk("intelfb: Looking for mode in private " 1034 "database\n"); 1035 msrc = fb_find_mode(var, dinfo->info, mode, 1036 dinfo->info->monspecs.modedb, 1037 dinfo->info->monspecs.modedb_len, 1038 NULL, 0); 1039 1040 if (msrc && msrc > 1) { 1041 printk("intelfb: No mode in private database, " 1042 "intelfb: looking for mode in global " 1043 "database "); 1044 msrc = fb_find_mode(var, dinfo->info, mode, 1045 NULL, 0, NULL, 0); 1046 1047 if (msrc) 1048 msrc |= 8; 1049 } 1050 1051 } 1052 1053 if (!msrc) 1054 msrc = fb_find_mode(var, dinfo->info, PREFERRED_MODE, 1055 NULL, 0, NULL, 0); 1056 } 1057 1058 if (!msrc) { 1059 ERR_MSG("Cannot find a suitable video mode.\n"); 1060 return 1; 1061 } 1062 1063 INF_MSG("Initial video mode is %dx%d-%d@%d.\n", var->xres, var->yres, 1064 var->bits_per_pixel, var_to_refresh(var)); 1065 1066 DBG_MSG("Initial video mode is from %d.\n", msrc); 1067 1068#if ALLOCATE_FOR_PANNING 1069 /* Allow use of half of the video ram for panning */ 1070 var->xres_virtual = var->xres; 1071 var->yres_virtual = 1072 dinfo->fb.size / 2 / (var->bits_per_pixel * var->xres); 1073 if (var->yres_virtual < var->yres) 1074 var->yres_virtual = var->yres; 1075#else 1076 var->yres_virtual = var->yres; 1077#endif 1078 1079 if (dinfo->accel) 1080 var->accel_flags |= FB_ACCELF_TEXT; 1081 else 1082 var->accel_flags &= ~FB_ACCELF_TEXT; 1083 1084 return 0; 1085} 1086 1087static int intelfb_set_fbinfo(struct intelfb_info *dinfo) 1088{ 1089 struct fb_info *info = dinfo->info; 1090 1091 DBG_MSG("intelfb_set_fbinfo\n"); 1092 1093 info->flags = FBINFO_FLAG_DEFAULT; 1094 info->fbops = &intel_fb_ops; 1095 info->pseudo_palette = dinfo->pseudo_palette; 1096 1097 info->pixmap.size = 64*1024; 1098 info->pixmap.buf_align = 8; 1099 info->pixmap.access_align = 32; 1100 info->pixmap.flags = FB_PIXMAP_SYSTEM; 1101 1102 if (intelfb_init_var(dinfo)) 1103 return 1; 1104 1105 info->pixmap.scan_align = 1; 1106 strcpy(info->fix.id, dinfo->name); 1107 info->fix.smem_start = dinfo->fb.physical; 1108 info->fix.smem_len = dinfo->fb.size; 1109 info->fix.type = FB_TYPE_PACKED_PIXELS; 1110 info->fix.type_aux = 0; 1111 info->fix.xpanstep = 8; 1112 info->fix.ypanstep = 1; 1113 info->fix.ywrapstep = 0; 1114 info->fix.mmio_start = dinfo->mmio_base_phys; 1115 info->fix.mmio_len = INTEL_REG_SIZE; 1116 info->fix.accel = FB_ACCEL_I830; 1117 update_dinfo(dinfo, &info->var); 1118 1119 return 0; 1120} 1121 1122/* Update dinfo to match the active video mode. */ 1123static void update_dinfo(struct intelfb_info *dinfo, 1124 struct fb_var_screeninfo *var) 1125{ 1126 DBG_MSG("update_dinfo\n"); 1127 1128 dinfo->bpp = var->bits_per_pixel; 1129 dinfo->depth = intelfb_var_to_depth(var); 1130 dinfo->xres = var->xres; 1131 dinfo->yres = var->xres; 1132 dinfo->pixclock = var->pixclock; 1133 1134 dinfo->info->fix.visual = dinfo->visual; 1135 dinfo->info->fix.line_length = dinfo->pitch; 1136 1137 switch (dinfo->bpp) { 1138 case 8: 1139 dinfo->visual = FB_VISUAL_PSEUDOCOLOR; 1140 dinfo->pitch = var->xres_virtual; 1141 break; 1142 case 16: 1143 dinfo->visual = FB_VISUAL_TRUECOLOR; 1144 dinfo->pitch = var->xres_virtual * 2; 1145 break; 1146 case 32: 1147 dinfo->visual = FB_VISUAL_TRUECOLOR; 1148 dinfo->pitch = var->xres_virtual * 4; 1149 break; 1150 } 1151 1152 /* Make sure the line length is a aligned correctly. */ 1153 if (IS_I9XX(dinfo)) 1154 dinfo->pitch = ROUND_UP_TO(dinfo->pitch, STRIDE_ALIGNMENT_I9XX); 1155 else 1156 dinfo->pitch = ROUND_UP_TO(dinfo->pitch, STRIDE_ALIGNMENT); 1157 1158 if (FIXED_MODE(dinfo)) 1159 dinfo->pitch = dinfo->initial_pitch; 1160 1161 dinfo->info->screen_base = (char __iomem *)dinfo->fb.virtual; 1162 dinfo->info->fix.line_length = dinfo->pitch; 1163 dinfo->info->fix.visual = dinfo->visual; 1164} 1165 1166/* fbops functions */ 1167 1168/*************************************************************** 1169 * fbdev interface * 1170 ***************************************************************/ 1171 1172static int intelfb_open(struct fb_info *info, int user) 1173{ 1174 struct intelfb_info *dinfo = GET_DINFO(info); 1175 1176 if (user) 1177 dinfo->open++; 1178 1179 return 0; 1180} 1181 1182static int intelfb_release(struct fb_info *info, int user) 1183{ 1184 struct intelfb_info *dinfo = GET_DINFO(info); 1185 1186 if (user) { 1187 dinfo->open--; 1188 msleep(1); 1189 if (!dinfo->open) 1190 intelfbhw_disable_irq(dinfo); 1191 } 1192 1193 return 0; 1194} 1195 1196static int intelfb_check_var(struct fb_var_screeninfo *var, 1197 struct fb_info *info) 1198{ 1199 int change_var = 0; 1200 struct fb_var_screeninfo v; 1201 struct intelfb_info *dinfo; 1202 static int first = 1; 1203 int i; 1204 /* Good pitches to allow tiling. Don't care about pitches < 1024. */ 1205 static const int pitches[] = { 1206 128 * 8, 1207 128 * 16, 1208 128 * 32, 1209 128 * 64, 1210 0 1211 }; 1212 1213 DBG_MSG("intelfb_check_var: accel_flags is %d\n", var->accel_flags); 1214 1215 dinfo = GET_DINFO(info); 1216 1217 if (!var->pixclock) 1218 return -EINVAL; 1219 1220 /* update the pitch */ 1221 if (intelfbhw_validate_mode(dinfo, var) != 0) 1222 return -EINVAL; 1223 1224 v = *var; 1225 1226 for (i = 0; pitches[i] != 0; i++) { 1227 if (pitches[i] >= v.xres_virtual) { 1228 v.xres_virtual = pitches[i]; 1229 break; 1230 } 1231 } 1232 1233 /* Check for a supported bpp. */ 1234 if (v.bits_per_pixel <= 8) 1235 v.bits_per_pixel = 8; 1236 else if (v.bits_per_pixel <= 16) { 1237 if (v.bits_per_pixel == 16) 1238 v.green.length = 6; 1239 v.bits_per_pixel = 16; 1240 } else if (v.bits_per_pixel <= 32) 1241 v.bits_per_pixel = 32; 1242 else 1243 return -EINVAL; 1244 1245 change_var = ((info->var.xres != var->xres) || 1246 (info->var.yres != var->yres) || 1247 (info->var.xres_virtual != var->xres_virtual) || 1248 (info->var.yres_virtual != var->yres_virtual) || 1249 (info->var.bits_per_pixel != var->bits_per_pixel) || 1250 memcmp(&info->var.red, &var->red, sizeof(var->red)) || 1251 memcmp(&info->var.green, &var->green, 1252 sizeof(var->green)) || 1253 memcmp(&info->var.blue, &var->blue, sizeof(var->blue))); 1254 1255 if (FIXED_MODE(dinfo) && 1256 (change_var || 1257 var->yres_virtual > dinfo->initial_var.yres_virtual || 1258 var->yres_virtual < dinfo->initial_var.yres || 1259 var->xoffset || var->nonstd)) { 1260 if (first) { 1261 ERR_MSG("Changing the video mode is not supported.\n"); 1262 first = 0; 1263 } 1264 return -EINVAL; 1265 } 1266 1267 switch (intelfb_var_to_depth(&v)) { 1268 case 8: 1269 v.red.offset = v.green.offset = v.blue.offset = 0; 1270 v.red.length = v.green.length = v.blue.length = 8; 1271 v.transp.offset = v.transp.length = 0; 1272 break; 1273 case 15: 1274 v.red.offset = 10; 1275 v.green.offset = 5; 1276 v.blue.offset = 0; 1277 v.red.length = v.green.length = v.blue.length = 5; 1278 v.transp.offset = v.transp.length = 0; 1279 break; 1280 case 16: 1281 v.red.offset = 11; 1282 v.green.offset = 5; 1283 v.blue.offset = 0; 1284 v.red.length = 5; 1285 v.green.length = 6; 1286 v.blue.length = 5; 1287 v.transp.offset = v.transp.length = 0; 1288 break; 1289 case 24: 1290 v.red.offset = 16; 1291 v.green.offset = 8; 1292 v.blue.offset = 0; 1293 v.red.length = v.green.length = v.blue.length = 8; 1294 v.transp.offset = v.transp.length = 0; 1295 break; 1296 case 32: 1297 v.red.offset = 16; 1298 v.green.offset = 8; 1299 v.blue.offset = 0; 1300 v.red.length = v.green.length = v.blue.length = 8; 1301 v.transp.offset = 24; 1302 v.transp.length = 8; 1303 break; 1304 } 1305 1306 if (v.xoffset > v.xres_virtual - v.xres) 1307 v.xoffset = v.xres_virtual - v.xres; 1308 if (v.yoffset > v.yres_virtual - v.yres) 1309 v.yoffset = v.yres_virtual - v.yres; 1310 1311 v.red.msb_right = v.green.msb_right = v.blue.msb_right = 1312 v.transp.msb_right = 0; 1313 1314 *var = v; 1315 1316 return 0; 1317} 1318 1319static int intelfb_set_par(struct fb_info *info) 1320{ 1321 struct intelfb_hwstate *hw; 1322 struct intelfb_info *dinfo = GET_DINFO(info); 1323 1324 if (FIXED_MODE(dinfo)) { 1325 ERR_MSG("Changing the video mode is not supported.\n"); 1326 return -EINVAL; 1327 } 1328 1329 hw = kmalloc(sizeof(*hw), GFP_ATOMIC); 1330 if (!hw) 1331 return -ENOMEM; 1332 1333 DBG_MSG("intelfb_set_par (%dx%d-%d)\n", info->var.xres, 1334 info->var.yres, info->var.bits_per_pixel); 1335 1336 /* 1337 * Disable VCO prior to timing register change. 1338 */ 1339 OUTREG(DPLL_A, INREG(DPLL_A) & ~DPLL_VCO_ENABLE); 1340 1341 intelfb_blank(FB_BLANK_POWERDOWN, info); 1342 1343 if (ACCEL(dinfo, info)) 1344 intelfbhw_2d_stop(dinfo); 1345 1346 memcpy(hw, &dinfo->save_state, sizeof(*hw)); 1347 if (intelfbhw_mode_to_hw(dinfo, hw, &info->var)) 1348 goto invalid_mode; 1349 if (intelfbhw_program_mode(dinfo, hw, 0)) 1350 goto invalid_mode; 1351 1352#if REGDUMP > 0 1353 intelfbhw_read_hw_state(dinfo, hw, 0); 1354 intelfbhw_print_hw_state(dinfo, hw); 1355#endif 1356 1357 update_dinfo(dinfo, &info->var); 1358 1359 if (ACCEL(dinfo, info)) 1360 intelfbhw_2d_start(dinfo); 1361 1362 intelfb_pan_display(&info->var, info); 1363 1364 intelfb_blank(FB_BLANK_UNBLANK, info); 1365 1366 if (ACCEL(dinfo, info)) { 1367 info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN | 1368 FBINFO_HWACCEL_COPYAREA | FBINFO_HWACCEL_FILLRECT | 1369 FBINFO_HWACCEL_IMAGEBLIT; 1370 } else 1371 info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN; 1372 1373 kfree(hw); 1374 return 0; 1375invalid_mode: 1376 kfree(hw); 1377 return -EINVAL; 1378} 1379 1380static int intelfb_setcolreg(unsigned regno, unsigned red, unsigned green, 1381 unsigned blue, unsigned transp, 1382 struct fb_info *info) 1383{ 1384 struct intelfb_info *dinfo = GET_DINFO(info); 1385 1386#if VERBOSE > 0 1387 DBG_MSG("intelfb_setcolreg: regno %d, depth %d\n", regno, dinfo->depth); 1388#endif 1389 1390 if (regno > 255) 1391 return 1; 1392 1393 if (dinfo->depth == 8) { 1394 red >>= 8; 1395 green >>= 8; 1396 blue >>= 8; 1397 1398 intelfbhw_setcolreg(dinfo, regno, red, green, blue, 1399 transp); 1400 } 1401 1402 if (regno < 16) { 1403 switch (dinfo->depth) { 1404 case 15: 1405 dinfo->pseudo_palette[regno] = ((red & 0xf800) >> 1) | 1406 ((green & 0xf800) >> 6) | 1407 ((blue & 0xf800) >> 11); 1408 break; 1409 case 16: 1410 dinfo->pseudo_palette[regno] = (red & 0xf800) | 1411 ((green & 0xfc00) >> 5) | 1412 ((blue & 0xf800) >> 11); 1413 break; 1414 case 24: 1415 dinfo->pseudo_palette[regno] = ((red & 0xff00) << 8) | 1416 (green & 0xff00) | 1417 ((blue & 0xff00) >> 8); 1418 break; 1419 } 1420 } 1421 1422 return 0; 1423} 1424 1425static int intelfb_blank(int blank, struct fb_info *info) 1426{ 1427 intelfbhw_do_blank(blank, info); 1428 return 0; 1429} 1430 1431static int intelfb_pan_display(struct fb_var_screeninfo *var, 1432 struct fb_info *info) 1433{ 1434 intelfbhw_pan_display(var, info); 1435 return 0; 1436} 1437 1438/* When/if we have our own ioctls. */ 1439static int intelfb_ioctl(struct fb_info *info, unsigned int cmd, 1440 unsigned long arg) 1441{ 1442 int retval = 0; 1443 struct intelfb_info *dinfo = GET_DINFO(info); 1444 u32 pipe = 0; 1445 1446 switch (cmd) { 1447 case FBIO_WAITFORVSYNC: 1448 if (get_user(pipe, (__u32 __user *)arg)) 1449 return -EFAULT; 1450 1451 retval = intelfbhw_wait_for_vsync(dinfo, pipe); 1452 break; 1453 default: 1454 break; 1455 } 1456 1457 return retval; 1458} 1459 1460static void intelfb_fillrect (struct fb_info *info, 1461 const struct fb_fillrect *rect) 1462{ 1463 struct intelfb_info *dinfo = GET_DINFO(info); 1464 u32 rop, color; 1465 1466#if VERBOSE > 0 1467 DBG_MSG("intelfb_fillrect\n"); 1468#endif 1469 1470 if (!ACCEL(dinfo, info) || dinfo->depth == 4) { 1471 cfb_fillrect(info, rect); 1472 return; 1473 } 1474 1475 if (rect->rop == ROP_COPY) 1476 rop = PAT_ROP_GXCOPY; 1477 else /* ROP_XOR */ 1478 rop = PAT_ROP_GXXOR; 1479 1480 if (dinfo->depth != 8) 1481 color = dinfo->pseudo_palette[rect->color]; 1482 else 1483 color = rect->color; 1484 1485 intelfbhw_do_fillrect(dinfo, rect->dx, rect->dy, 1486 rect->width, rect->height, color, 1487 dinfo->pitch, info->var.bits_per_pixel, 1488 rop); 1489} 1490 1491static void intelfb_copyarea(struct fb_info *info, 1492 const struct fb_copyarea *region) 1493{ 1494 struct intelfb_info *dinfo = GET_DINFO(info); 1495 1496#if VERBOSE > 0 1497 DBG_MSG("intelfb_copyarea\n"); 1498#endif 1499 1500 if (!ACCEL(dinfo, info) || dinfo->depth == 4) { 1501 cfb_copyarea(info, region); 1502 return; 1503 } 1504 1505 intelfbhw_do_bitblt(dinfo, region->sx, region->sy, region->dx, 1506 region->dy, region->width, region->height, 1507 dinfo->pitch, info->var.bits_per_pixel); 1508} 1509 1510static void intelfb_imageblit(struct fb_info *info, 1511 const struct fb_image *image) 1512{ 1513 struct intelfb_info *dinfo = GET_DINFO(info); 1514 u32 fgcolor, bgcolor; 1515 1516#if VERBOSE > 0 1517 DBG_MSG("intelfb_imageblit\n"); 1518#endif 1519 1520 if (!ACCEL(dinfo, info) || dinfo->depth == 4 1521 || image->depth != 1) { 1522 cfb_imageblit(info, image); 1523 return; 1524 } 1525 1526 if (dinfo->depth != 8) { 1527 fgcolor = dinfo->pseudo_palette[image->fg_color]; 1528 bgcolor = dinfo->pseudo_palette[image->bg_color]; 1529 } else { 1530 fgcolor = image->fg_color; 1531 bgcolor = image->bg_color; 1532 } 1533 1534 if (!intelfbhw_do_drawglyph(dinfo, fgcolor, bgcolor, image->width, 1535 image->height, image->data, 1536 image->dx, image->dy, 1537 dinfo->pitch, info->var.bits_per_pixel)) { 1538 cfb_imageblit(info, image); 1539 return; 1540 } 1541} 1542 1543static int intelfb_cursor(struct fb_info *info, struct fb_cursor *cursor) 1544{ 1545 struct intelfb_info *dinfo = GET_DINFO(info); 1546 u32 physical; 1547#if VERBOSE > 0 1548 DBG_MSG("intelfb_cursor\n"); 1549#endif 1550 1551 if (!dinfo->hwcursor) 1552 return -ENODEV; 1553 1554 intelfbhw_cursor_hide(dinfo); 1555 1556 /* If XFree killed the cursor - restore it */ 1557 physical = (dinfo->mobile || IS_I9XX(dinfo)) ? dinfo->cursor.physical : 1558 (dinfo->cursor.offset << 12); 1559 1560 if (INREG(CURSOR_A_BASEADDR) != physical) { 1561 u32 fg, bg; 1562 1563 DBG_MSG("the cursor was killed - restore it !!\n"); 1564 DBG_MSG("size %d, %d pos %d, %d\n", 1565 cursor->image.width, cursor->image.height, 1566 cursor->image.dx, cursor->image.dy); 1567 1568 intelfbhw_cursor_init(dinfo); 1569 intelfbhw_cursor_reset(dinfo); 1570 intelfbhw_cursor_setpos(dinfo, cursor->image.dx, 1571 cursor->image.dy); 1572 1573 if (dinfo->depth != 8) { 1574 fg =dinfo->pseudo_palette[cursor->image.fg_color]; 1575 bg =dinfo->pseudo_palette[cursor->image.bg_color]; 1576 } else { 1577 fg = cursor->image.fg_color; 1578 bg = cursor->image.bg_color; 1579 } 1580 intelfbhw_cursor_setcolor(dinfo, bg, fg); 1581 intelfbhw_cursor_load(dinfo, cursor->image.width, 1582 cursor->image.height, 1583 dinfo->cursor_src); 1584 1585 if (cursor->enable) 1586 intelfbhw_cursor_show(dinfo); 1587 return 0; 1588 } 1589 1590 if (cursor->set & FB_CUR_SETPOS) { 1591 u32 dx, dy; 1592 1593 dx = cursor->image.dx - info->var.xoffset; 1594 dy = cursor->image.dy - info->var.yoffset; 1595 1596 intelfbhw_cursor_setpos(dinfo, dx, dy); 1597 } 1598 1599 if (cursor->set & FB_CUR_SETSIZE) { 1600 if (cursor->image.width > 64 || cursor->image.height > 64) 1601 return -ENXIO; 1602 1603 intelfbhw_cursor_reset(dinfo); 1604 } 1605 1606 if (cursor->set & FB_CUR_SETCMAP) { 1607 u32 fg, bg; 1608 1609 if (dinfo->depth != 8) { 1610 fg = dinfo->pseudo_palette[cursor->image.fg_color]; 1611 bg = dinfo->pseudo_palette[cursor->image.bg_color]; 1612 } else { 1613 fg = cursor->image.fg_color; 1614 bg = cursor->image.bg_color; 1615 } 1616 1617 intelfbhw_cursor_setcolor(dinfo, bg, fg); 1618 } 1619 1620 if (cursor->set & (FB_CUR_SETSHAPE | FB_CUR_SETIMAGE)) { 1621 u32 s_pitch = (ROUND_UP_TO(cursor->image.width, 8) / 8); 1622 u32 size = s_pitch * cursor->image.height; 1623 u8 *dat = (u8 *) cursor->image.data; 1624 u8 *msk = (u8 *) cursor->mask; 1625 u8 src[64]; 1626 u32 i; 1627 1628 if (cursor->image.depth != 1) 1629 return -ENXIO; 1630 1631 switch (cursor->rop) { 1632 case ROP_XOR: 1633 for (i = 0; i < size; i++) 1634 src[i] = dat[i] ^ msk[i]; 1635 break; 1636 case ROP_COPY: 1637 default: 1638 for (i = 0; i < size; i++) 1639 src[i] = dat[i] & msk[i]; 1640 break; 1641 } 1642 1643 /* save the bitmap to restore it when XFree will 1644 make the cursor dirty */ 1645 memcpy(dinfo->cursor_src, src, size); 1646 1647 intelfbhw_cursor_load(dinfo, cursor->image.width, 1648 cursor->image.height, src); 1649 } 1650 1651 if (cursor->enable) 1652 intelfbhw_cursor_show(dinfo); 1653 1654 return 0; 1655} 1656 1657static int intelfb_sync(struct fb_info *info) 1658{ 1659 struct intelfb_info *dinfo = GET_DINFO(info); 1660 1661#if VERBOSE > 0 1662 DBG_MSG("intelfb_sync\n"); 1663#endif 1664 1665 if (dinfo->ring_lockup) 1666 return 0; 1667 1668 intelfbhw_do_sync(dinfo); 1669 return 0; 1670} 1671 1672