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/aperture.h> 111 #include <linux/module.h> 112 #include <linux/kernel.h> 113 #include <linux/errno.h> 114 #include <linux/string.h> 115 #include <linux/mm.h> 116 #include <linux/slab.h> 117 #include <linux/delay.h> 118 #include <linux/fb.h> 119 #include <linux/ioport.h> 120 #include <linux/init.h> 121 #include <linux/pci.h> 122 #include <linux/vmalloc.h> 123 #include <linux/pagemap.h> 124 #include <linux/screen_info.h> 125 126 #include <asm/io.h> 127 128 #include "intelfb.h" 129 #include "intelfbhw.h" 130 #include "../edid.h" 131 132 static void get_initial_mode(struct intelfb_info *dinfo); 133 static void update_dinfo(struct intelfb_info *dinfo, 134 struct fb_var_screeninfo *var); 135 static int intelfb_open(struct fb_info *info, int user); 136 static int intelfb_release(struct fb_info *info, int user); 137 static int intelfb_check_var(struct fb_var_screeninfo *var, 138 struct fb_info *info); 139 static int intelfb_set_par(struct fb_info *info); 140 static int intelfb_setcolreg(unsigned regno, unsigned red, unsigned green, 141 unsigned blue, unsigned transp, 142 struct fb_info *info); 143 144 static int intelfb_blank(int blank, struct fb_info *info); 145 static int intelfb_pan_display(struct fb_var_screeninfo *var, 146 struct fb_info *info); 147 148 static void intelfb_fillrect(struct fb_info *info, 149 const struct fb_fillrect *rect); 150 static void intelfb_copyarea(struct fb_info *info, 151 const struct fb_copyarea *region); 152 static void intelfb_imageblit(struct fb_info *info, 153 const struct fb_image *image); 154 static int intelfb_cursor(struct fb_info *info, 155 struct fb_cursor *cursor); 156 157 static int intelfb_sync(struct fb_info *info); 158 159 static int intelfb_ioctl(struct fb_info *info, 160 unsigned int cmd, unsigned long arg); 161 162 static int intelfb_pci_register(struct pci_dev *pdev, 163 const struct pci_device_id *ent); 164 static void intelfb_pci_unregister(struct pci_dev *pdev); 165 static int intelfb_set_fbinfo(struct intelfb_info *dinfo); 166 167 /* 168 * Limiting the class to PCI_CLASS_DISPLAY_VGA prevents function 1 of the 169 * mobile chipsets from being registered. 170 */ 171 #if DETECT_VGA_CLASS_ONLY 172 #define INTELFB_CLASS_MASK ~0 << 8 173 #else 174 #define INTELFB_CLASS_MASK 0 175 #endif 176 177 static const struct pci_device_id intelfb_pci_table[] = { 178 { 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 }, 179 { 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 }, 180 { 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 }, 181 { 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 }, 182 { 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 }, 183 { 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 }, 184 { 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 }, 185 { 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 }, 186 { 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 }, 187 { 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 }, 188 { 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 }, 189 { 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 }, 190 { 0, } 191 }; 192 193 /* Global data */ 194 static int num_registered = 0; 195 196 /* fb ops */ 197 static const struct fb_ops intel_fb_ops = { 198 .owner = THIS_MODULE, 199 .fb_open = intelfb_open, 200 .fb_release = intelfb_release, 201 .fb_check_var = intelfb_check_var, 202 .fb_set_par = intelfb_set_par, 203 .fb_setcolreg = intelfb_setcolreg, 204 .fb_blank = intelfb_blank, 205 .fb_pan_display = intelfb_pan_display, 206 .fb_fillrect = intelfb_fillrect, 207 .fb_copyarea = intelfb_copyarea, 208 .fb_imageblit = intelfb_imageblit, 209 .fb_cursor = intelfb_cursor, 210 .fb_sync = intelfb_sync, 211 .fb_ioctl = intelfb_ioctl 212 }; 213 214 /* PCI driver module table */ 215 static struct pci_driver intelfb_driver = { 216 .name = "intelfb", 217 .id_table = intelfb_pci_table, 218 .probe = intelfb_pci_register, 219 .remove = intelfb_pci_unregister, 220 }; 221 222 /* Module description/parameters */ 223 MODULE_AUTHOR("David Dawes <dawes@tungstengraphics.com>, " 224 "Sylvain Meyer <sylvain.meyer@worldonline.fr>"); 225 MODULE_DESCRIPTION("Framebuffer driver for Intel(R) " SUPPORTED_CHIPSETS 226 " chipsets"); 227 MODULE_LICENSE("Dual BSD/GPL"); 228 MODULE_DEVICE_TABLE(pci, intelfb_pci_table); 229 230 static bool accel = 1; 231 static int vram = 4; 232 static bool hwcursor = 0; 233 static bool mtrr = 1; 234 static bool fixed = 0; 235 static bool noinit = 0; 236 static bool noregister = 0; 237 static bool probeonly = 0; 238 static bool idonly = 0; 239 static int bailearly = 0; 240 static int voffset = 48; 241 static char *mode = NULL; 242 243 module_param(accel, bool, S_IRUGO); 244 MODULE_PARM_DESC(accel, "Enable hardware acceleration"); 245 module_param(vram, int, S_IRUGO); 246 MODULE_PARM_DESC(vram, "System RAM to allocate to framebuffer in MiB"); 247 module_param(voffset, int, S_IRUGO); 248 MODULE_PARM_DESC(voffset, "Offset of framebuffer in MiB"); 249 module_param(hwcursor, bool, S_IRUGO); 250 MODULE_PARM_DESC(hwcursor, "Enable HW cursor"); 251 module_param(mtrr, bool, S_IRUGO); 252 MODULE_PARM_DESC(mtrr, "Enable MTRR support"); 253 module_param(fixed, bool, S_IRUGO); 254 MODULE_PARM_DESC(fixed, "Disable mode switching"); 255 module_param(noinit, bool, 0); 256 MODULE_PARM_DESC(noinit, "Don't initialise graphics mode when loading"); 257 module_param(noregister, bool, 0); 258 MODULE_PARM_DESC(noregister, "Don't register, just probe and exit (debug)"); 259 module_param(probeonly, bool, 0); 260 MODULE_PARM_DESC(probeonly, "Do a minimal probe (debug)"); 261 module_param(idonly, bool, 0); 262 MODULE_PARM_DESC(idonly, "Just identify without doing anything else (debug)"); 263 module_param(bailearly, int, 0); 264 MODULE_PARM_DESC(bailearly, "Bail out early, depending on value (debug)"); 265 module_param(mode, charp, S_IRUGO); 266 MODULE_PARM_DESC(mode, 267 "Initial video mode \"<xres>x<yres>[-<depth>][@<refresh>]\""); 268 269 #ifndef MODULE 270 #define OPT_EQUAL(opt, name) (!strncmp(opt, name, strlen(name))) 271 #define OPT_INTVAL(opt, name) simple_strtoul(opt + strlen(name) + 1, NULL, 0) 272 #define OPT_STRVAL(opt, name) (opt + strlen(name)) 273 274 static __inline__ char * get_opt_string(const char *this_opt, const char *name) 275 { 276 const char *p; 277 int i; 278 char *ret; 279 280 p = OPT_STRVAL(this_opt, name); 281 i = 0; 282 while (p[i] && p[i] != ' ' && p[i] != ',') 283 i++; 284 ret = kmalloc(i + 1, GFP_KERNEL); 285 if (ret) { 286 strncpy(ret, p, i); 287 ret[i] = '\0'; 288 } 289 return ret; 290 } 291 292 static __inline__ int get_opt_int(const char *this_opt, const char *name, 293 int *ret) 294 { 295 if (!ret) 296 return 0; 297 298 if (!OPT_EQUAL(this_opt, name)) 299 return 0; 300 301 *ret = OPT_INTVAL(this_opt, name); 302 return 1; 303 } 304 305 static __inline__ int get_opt_bool(const char *this_opt, const char *name, 306 bool *ret) 307 { 308 if (!ret) 309 return 0; 310 311 if (OPT_EQUAL(this_opt, name)) { 312 if (this_opt[strlen(name)] == '=') 313 *ret = simple_strtoul(this_opt + strlen(name) + 1, 314 NULL, 0); 315 else 316 *ret = 1; 317 } else { 318 if (OPT_EQUAL(this_opt, "no") && OPT_EQUAL(this_opt + 2, name)) 319 *ret = 0; 320 else 321 return 0; 322 } 323 return 1; 324 } 325 326 static int __init intelfb_setup(char *options) 327 { 328 char *this_opt; 329 330 DBG_MSG("intelfb_setup\n"); 331 332 if (!options || !*options) { 333 DBG_MSG("no options\n"); 334 return 0; 335 } else 336 DBG_MSG("options: %s\n", options); 337 338 /* 339 * These are the built-in options analogous to the module parameters 340 * defined above. 341 * 342 * The syntax is: 343 * 344 * video=intelfb:[mode][,<param>=<val>] ... 345 * 346 * e.g., 347 * 348 * video=intelfb:1024x768-16@75,accel=0 349 */ 350 351 while ((this_opt = strsep(&options, ","))) { 352 if (!*this_opt) 353 continue; 354 if (get_opt_bool(this_opt, "accel", &accel)) 355 ; 356 else if (get_opt_int(this_opt, "vram", &vram)) 357 ; 358 else if (get_opt_bool(this_opt, "hwcursor", &hwcursor)) 359 ; 360 else if (get_opt_bool(this_opt, "mtrr", &mtrr)) 361 ; 362 else if (get_opt_bool(this_opt, "fixed", &fixed)) 363 ; 364 else if (get_opt_bool(this_opt, "init", &noinit)) 365 noinit = !noinit; 366 else if (OPT_EQUAL(this_opt, "mode=")) 367 mode = get_opt_string(this_opt, "mode="); 368 else 369 mode = this_opt; 370 } 371 372 return 0; 373 } 374 375 #endif 376 377 static int __init intelfb_init(void) 378 { 379 #ifndef MODULE 380 char *option = NULL; 381 #endif 382 383 DBG_MSG("intelfb_init\n"); 384 385 INF_MSG("Framebuffer driver for " 386 "Intel(R) " SUPPORTED_CHIPSETS " chipsets\n"); 387 INF_MSG("Version " INTELFB_VERSION "\n"); 388 389 if (idonly) 390 return -ENODEV; 391 392 if (fb_modesetting_disabled("intelfb")) 393 return -ENODEV; 394 395 #ifndef MODULE 396 if (fb_get_options("intelfb", &option)) 397 return -ENODEV; 398 intelfb_setup(option); 399 #endif 400 401 return pci_register_driver(&intelfb_driver); 402 } 403 404 static void __exit intelfb_exit(void) 405 { 406 DBG_MSG("intelfb_exit\n"); 407 pci_unregister_driver(&intelfb_driver); 408 } 409 410 module_init(intelfb_init); 411 module_exit(intelfb_exit); 412 413 /*************************************************************** 414 * driver init / cleanup * 415 ***************************************************************/ 416 417 static void cleanup(struct intelfb_info *dinfo) 418 { 419 DBG_MSG("cleanup\n"); 420 421 if (!dinfo) 422 return; 423 424 intelfbhw_disable_irq(dinfo); 425 426 fb_dealloc_cmap(&dinfo->info->cmap); 427 kfree(dinfo->info->pixmap.addr); 428 429 if (dinfo->registered) 430 unregister_framebuffer(dinfo->info); 431 432 arch_phys_wc_del(dinfo->wc_cookie); 433 434 if (dinfo->fbmem_gart && dinfo->gtt_fb_mem) { 435 agp_unbind_memory(dinfo->gtt_fb_mem); 436 agp_free_memory(dinfo->gtt_fb_mem); 437 } 438 if (dinfo->gtt_cursor_mem) { 439 agp_unbind_memory(dinfo->gtt_cursor_mem); 440 agp_free_memory(dinfo->gtt_cursor_mem); 441 } 442 if (dinfo->gtt_ring_mem) { 443 agp_unbind_memory(dinfo->gtt_ring_mem); 444 agp_free_memory(dinfo->gtt_ring_mem); 445 } 446 447 #ifdef CONFIG_FB_INTEL_I2C 448 /* un-register I2C bus */ 449 intelfb_delete_i2c_busses(dinfo); 450 #endif 451 452 if (dinfo->mmio_base) 453 iounmap((void __iomem *)dinfo->mmio_base); 454 if (dinfo->aperture.virtual) 455 iounmap((void __iomem *)dinfo->aperture.virtual); 456 457 if (dinfo->flag & INTELFB_MMIO_ACQUIRED) 458 release_mem_region(dinfo->mmio_base_phys, INTEL_REG_SIZE); 459 if (dinfo->flag & INTELFB_FB_ACQUIRED) 460 release_mem_region(dinfo->aperture.physical, 461 dinfo->aperture.size); 462 framebuffer_release(dinfo->info); 463 } 464 465 #define bailout(dinfo) do { \ 466 DBG_MSG("bailout\n"); \ 467 cleanup(dinfo); \ 468 INF_MSG("Not going to register framebuffer, exiting...\n"); \ 469 return -ENODEV; \ 470 } while (0) 471 472 473 static int intelfb_pci_register(struct pci_dev *pdev, 474 const struct pci_device_id *ent) 475 { 476 struct fb_info *info; 477 struct intelfb_info *dinfo; 478 int i, err, dvo; 479 int aperture_size, stolen_size = 0; 480 struct agp_kern_info gtt_info; 481 int agp_memtype; 482 const char *s; 483 struct agp_bridge_data *bridge; 484 int aperture_bar = 0; 485 int mmio_bar = 1; 486 int offset; 487 488 DBG_MSG("intelfb_pci_register\n"); 489 490 err = aperture_remove_conflicting_pci_devices(pdev, "intelfb"); 491 if (err) 492 return err; 493 494 num_registered++; 495 if (num_registered != 1) { 496 ERR_MSG("Attempted to register %d devices " 497 "(should be only 1).\n", num_registered); 498 return -ENODEV; 499 } 500 501 info = framebuffer_alloc(sizeof(struct intelfb_info), &pdev->dev); 502 if (!info) 503 return -ENOMEM; 504 505 if (fb_alloc_cmap(&info->cmap, 256, 1) < 0) { 506 ERR_MSG("Could not allocate cmap for intelfb_info.\n"); 507 goto err_out_cmap; 508 } 509 510 dinfo = info->par; 511 dinfo->info = info; 512 dinfo->fbops = &intel_fb_ops; 513 dinfo->pdev = pdev; 514 515 /* Reserve pixmap space. */ 516 info->pixmap.addr = kzalloc(64 * 1024, GFP_KERNEL); 517 if (info->pixmap.addr == NULL) { 518 ERR_MSG("Cannot reserve pixmap memory.\n"); 519 goto err_out_pixmap; 520 } 521 522 /* set early this option because it could be changed by tv encoder 523 driver */ 524 dinfo->fixed_mode = fixed; 525 526 /* Enable device. */ 527 if ((err = pci_enable_device(pdev))) { 528 ERR_MSG("Cannot enable device.\n"); 529 cleanup(dinfo); 530 return -ENODEV; 531 } 532 533 /* Set base addresses. */ 534 if ((ent->device == PCI_DEVICE_ID_INTEL_915G) || 535 (ent->device == PCI_DEVICE_ID_INTEL_915GM) || 536 (ent->device == PCI_DEVICE_ID_INTEL_945G) || 537 (ent->device == PCI_DEVICE_ID_INTEL_945GM) || 538 (ent->device == PCI_DEVICE_ID_INTEL_945GME) || 539 (ent->device == PCI_DEVICE_ID_INTEL_965G) || 540 (ent->device == PCI_DEVICE_ID_INTEL_965GM)) { 541 542 aperture_bar = 2; 543 mmio_bar = 0; 544 } 545 dinfo->aperture.physical = pci_resource_start(pdev, aperture_bar); 546 dinfo->aperture.size = pci_resource_len(pdev, aperture_bar); 547 dinfo->mmio_base_phys = pci_resource_start(pdev, mmio_bar); 548 DBG_MSG("fb aperture: 0x%llx/0x%llx, MMIO region: 0x%llx/0x%llx\n", 549 (unsigned long long)pci_resource_start(pdev, aperture_bar), 550 (unsigned long long)pci_resource_len(pdev, aperture_bar), 551 (unsigned long long)pci_resource_start(pdev, mmio_bar), 552 (unsigned long long)pci_resource_len(pdev, mmio_bar)); 553 554 /* Reserve the fb and MMIO regions */ 555 if (!request_mem_region(dinfo->aperture.physical, dinfo->aperture.size, 556 INTELFB_MODULE_NAME)) { 557 ERR_MSG("Cannot reserve FB region.\n"); 558 cleanup(dinfo); 559 return -ENODEV; 560 } 561 562 dinfo->flag |= INTELFB_FB_ACQUIRED; 563 564 if (!request_mem_region(dinfo->mmio_base_phys, 565 INTEL_REG_SIZE, 566 INTELFB_MODULE_NAME)) { 567 ERR_MSG("Cannot reserve MMIO region.\n"); 568 cleanup(dinfo); 569 return -ENODEV; 570 } 571 572 dinfo->flag |= INTELFB_MMIO_ACQUIRED; 573 574 /* Get the chipset info. */ 575 dinfo->pci_chipset = pdev->device; 576 577 if (intelfbhw_get_chipset(pdev, dinfo)) { 578 cleanup(dinfo); 579 return -ENODEV; 580 } 581 582 if (intelfbhw_get_memory(pdev, &aperture_size, &stolen_size)) { 583 cleanup(dinfo); 584 return -ENODEV; 585 } 586 587 INF_MSG("%02x:%02x.%d: %s, aperture size %dMB, " 588 "stolen memory %dkB\n", 589 pdev->bus->number, PCI_SLOT(pdev->devfn), 590 PCI_FUNC(pdev->devfn), dinfo->name, 591 BtoMB(aperture_size), BtoKB(stolen_size)); 592 593 /* Set these from the options. */ 594 dinfo->accel = accel; 595 dinfo->hwcursor = hwcursor; 596 597 if (NOACCEL_CHIPSET(dinfo) && dinfo->accel == 1) { 598 INF_MSG("Acceleration is not supported for the %s chipset.\n", 599 dinfo->name); 600 dinfo->accel = 0; 601 } 602 603 /* Framebuffer parameters - Use all the stolen memory if >= vram */ 604 if (ROUND_UP_TO_PAGE(stolen_size) >= MB(vram)) { 605 dinfo->fb.size = ROUND_UP_TO_PAGE(stolen_size); 606 dinfo->fbmem_gart = 0; 607 } else { 608 dinfo->fb.size = MB(vram); 609 dinfo->fbmem_gart = 1; 610 } 611 612 /* Allocate space for the ring buffer and HW cursor if enabled. */ 613 if (dinfo->accel) { 614 dinfo->ring.size = RINGBUFFER_SIZE; 615 dinfo->ring_tail_mask = dinfo->ring.size - 1; 616 } 617 if (dinfo->hwcursor) 618 dinfo->cursor.size = HW_CURSOR_SIZE; 619 620 /* Use agpgart to manage the GATT */ 621 if (!(bridge = agp_backend_acquire(pdev))) { 622 ERR_MSG("cannot acquire agp\n"); 623 cleanup(dinfo); 624 return -ENODEV; 625 } 626 627 /* get the current gatt info */ 628 if (agp_copy_info(bridge, >t_info)) { 629 ERR_MSG("cannot get agp info\n"); 630 agp_backend_release(bridge); 631 cleanup(dinfo); 632 return -ENODEV; 633 } 634 635 if (MB(voffset) < stolen_size) 636 offset = (stolen_size >> 12); 637 else 638 offset = ROUND_UP_TO_PAGE(MB(voffset))/GTT_PAGE_SIZE; 639 640 /* set the mem offsets - set them after the already used pages */ 641 if (dinfo->accel) 642 dinfo->ring.offset = offset + gtt_info.current_memory; 643 if (dinfo->hwcursor) 644 dinfo->cursor.offset = offset + 645 + gtt_info.current_memory + (dinfo->ring.size >> 12); 646 if (dinfo->fbmem_gart) 647 dinfo->fb.offset = offset + 648 + gtt_info.current_memory + (dinfo->ring.size >> 12) 649 + (dinfo->cursor.size >> 12); 650 651 /* Allocate memories (which aren't stolen) */ 652 /* Map the fb and MMIO regions */ 653 /* ioremap only up to the end of used aperture */ 654 dinfo->aperture.virtual = (u8 __iomem *)ioremap_wc 655 (dinfo->aperture.physical, ((offset + dinfo->fb.offset) << 12) 656 + dinfo->fb.size); 657 if (!dinfo->aperture.virtual) { 658 ERR_MSG("Cannot remap FB region.\n"); 659 agp_backend_release(bridge); 660 cleanup(dinfo); 661 return -ENODEV; 662 } 663 664 dinfo->mmio_base = 665 (u8 __iomem *)ioremap(dinfo->mmio_base_phys, 666 INTEL_REG_SIZE); 667 if (!dinfo->mmio_base) { 668 ERR_MSG("Cannot remap MMIO region.\n"); 669 agp_backend_release(bridge); 670 cleanup(dinfo); 671 return -ENODEV; 672 } 673 674 if (dinfo->accel) { 675 if (!(dinfo->gtt_ring_mem = 676 agp_allocate_memory(bridge, dinfo->ring.size >> 12, 677 AGP_NORMAL_MEMORY))) { 678 ERR_MSG("cannot allocate ring buffer memory\n"); 679 agp_backend_release(bridge); 680 cleanup(dinfo); 681 return -ENOMEM; 682 } 683 if (agp_bind_memory(dinfo->gtt_ring_mem, 684 dinfo->ring.offset)) { 685 ERR_MSG("cannot bind ring buffer memory\n"); 686 agp_backend_release(bridge); 687 cleanup(dinfo); 688 return -EBUSY; 689 } 690 dinfo->ring.physical = dinfo->aperture.physical 691 + (dinfo->ring.offset << 12); 692 dinfo->ring.virtual = dinfo->aperture.virtual 693 + (dinfo->ring.offset << 12); 694 dinfo->ring_head = 0; 695 } 696 if (dinfo->hwcursor) { 697 agp_memtype = dinfo->mobile ? AGP_PHYSICAL_MEMORY 698 : AGP_NORMAL_MEMORY; 699 if (!(dinfo->gtt_cursor_mem = 700 agp_allocate_memory(bridge, dinfo->cursor.size >> 12, 701 agp_memtype))) { 702 ERR_MSG("cannot allocate cursor memory\n"); 703 agp_backend_release(bridge); 704 cleanup(dinfo); 705 return -ENOMEM; 706 } 707 if (agp_bind_memory(dinfo->gtt_cursor_mem, 708 dinfo->cursor.offset)) { 709 ERR_MSG("cannot bind cursor memory\n"); 710 agp_backend_release(bridge); 711 cleanup(dinfo); 712 return -EBUSY; 713 } 714 if (dinfo->mobile) 715 dinfo->cursor.physical 716 = dinfo->gtt_cursor_mem->physical; 717 else 718 dinfo->cursor.physical = dinfo->aperture.physical 719 + (dinfo->cursor.offset << 12); 720 dinfo->cursor.virtual = dinfo->aperture.virtual 721 + (dinfo->cursor.offset << 12); 722 } 723 if (dinfo->fbmem_gart) { 724 if (!(dinfo->gtt_fb_mem = 725 agp_allocate_memory(bridge, dinfo->fb.size >> 12, 726 AGP_NORMAL_MEMORY))) { 727 WRN_MSG("cannot allocate framebuffer memory - use " 728 "the stolen one\n"); 729 dinfo->fbmem_gart = 0; 730 } 731 if (agp_bind_memory(dinfo->gtt_fb_mem, 732 dinfo->fb.offset)) { 733 WRN_MSG("cannot bind framebuffer memory - use " 734 "the stolen one\n"); 735 dinfo->fbmem_gart = 0; 736 } 737 } 738 739 /* update framebuffer memory parameters */ 740 if (!dinfo->fbmem_gart) 741 dinfo->fb.offset = 0; /* starts at offset 0 */ 742 dinfo->fb.physical = dinfo->aperture.physical 743 + (dinfo->fb.offset << 12); 744 dinfo->fb.virtual = dinfo->aperture.virtual + (dinfo->fb.offset << 12); 745 dinfo->fb_start = dinfo->fb.offset << 12; 746 747 /* release agpgart */ 748 agp_backend_release(bridge); 749 750 if (mtrr) 751 dinfo->wc_cookie = arch_phys_wc_add(dinfo->aperture.physical, 752 dinfo->aperture.size); 753 754 DBG_MSG("fb: 0x%x(+ 0x%x)/0x%x (0x%p)\n", 755 dinfo->fb.physical, dinfo->fb.offset, dinfo->fb.size, 756 dinfo->fb.virtual); 757 DBG_MSG("MMIO: 0x%x/0x%x (0x%p)\n", 758 dinfo->mmio_base_phys, INTEL_REG_SIZE, 759 dinfo->mmio_base); 760 DBG_MSG("ring buffer: 0x%x/0x%x (0x%p)\n", 761 dinfo->ring.physical, dinfo->ring.size, 762 dinfo->ring.virtual); 763 DBG_MSG("HW cursor: 0x%x/0x%x (0x%p) (offset 0x%x) (phys 0x%x)\n", 764 dinfo->cursor.physical, dinfo->cursor.size, 765 dinfo->cursor.virtual, dinfo->cursor.offset, 766 dinfo->cursor.physical); 767 768 DBG_MSG("options: vram = %d, accel = %d, hwcursor = %d, fixed = %d, " 769 "noinit = %d\n", vram, accel, hwcursor, fixed, noinit); 770 DBG_MSG("options: mode = \"%s\"\n", mode ? mode : ""); 771 772 if (probeonly) 773 bailout(dinfo); 774 775 /* 776 * Check if the LVDS port or any DVO ports are enabled. If so, 777 * don't allow mode switching 778 */ 779 dvo = intelfbhw_check_non_crt(dinfo); 780 if (dvo) { 781 dinfo->fixed_mode = 1; 782 WRN_MSG("Non-CRT device is enabled ( "); 783 i = 0; 784 while (dvo) { 785 if (dvo & 1) { 786 s = intelfbhw_dvo_to_string(1 << i); 787 if (s) 788 printk("%s ", s); 789 } 790 dvo >>= 1; 791 ++i; 792 } 793 printk("). Disabling mode switching.\n"); 794 } 795 796 if (bailearly == 1) 797 bailout(dinfo); 798 799 if (FIXED_MODE(dinfo) && 800 screen_info.orig_video_isVGA != VIDEO_TYPE_VLFB) { 801 ERR_MSG("Video mode must be programmed at boot time.\n"); 802 cleanup(dinfo); 803 return -ENODEV; 804 } 805 806 if (bailearly == 2) 807 bailout(dinfo); 808 809 /* Initialise dinfo and related data. */ 810 /* If an initial mode was programmed at boot time, get its details. */ 811 if (screen_info.orig_video_isVGA == VIDEO_TYPE_VLFB) 812 get_initial_mode(dinfo); 813 814 if (bailearly == 3) 815 bailout(dinfo); 816 817 if (FIXED_MODE(dinfo)) /* remap fb address */ 818 update_dinfo(dinfo, &dinfo->initial_var); 819 820 if (bailearly == 4) 821 bailout(dinfo); 822 823 824 if (intelfb_set_fbinfo(dinfo)) { 825 cleanup(dinfo); 826 return -ENODEV; 827 } 828 829 if (bailearly == 5) 830 bailout(dinfo); 831 832 #ifdef CONFIG_FB_INTEL_I2C 833 /* register I2C bus */ 834 intelfb_create_i2c_busses(dinfo); 835 #endif 836 837 if (bailearly == 6) 838 bailout(dinfo); 839 840 pci_set_drvdata(pdev, dinfo); 841 842 /* Save the initial register state. */ 843 i = intelfbhw_read_hw_state(dinfo, &dinfo->save_state, 844 bailearly > 6 ? bailearly - 6 : 0); 845 if (i != 0) { 846 DBG_MSG("intelfbhw_read_hw_state returned %d\n", i); 847 bailout(dinfo); 848 } 849 850 intelfbhw_print_hw_state(dinfo, &dinfo->save_state); 851 852 if (bailearly == 18) 853 bailout(dinfo); 854 855 /* read active pipe */ 856 dinfo->pipe = intelfbhw_active_pipe(&dinfo->save_state); 857 858 /* Cursor initialisation */ 859 if (dinfo->hwcursor) { 860 intelfbhw_cursor_init(dinfo); 861 intelfbhw_cursor_reset(dinfo); 862 } 863 864 if (bailearly == 19) 865 bailout(dinfo); 866 867 /* 2d acceleration init */ 868 if (dinfo->accel) 869 intelfbhw_2d_start(dinfo); 870 871 if (bailearly == 20) 872 bailout(dinfo); 873 874 if (noregister) 875 bailout(dinfo); 876 877 if (register_framebuffer(dinfo->info) < 0) { 878 ERR_MSG("Cannot register framebuffer.\n"); 879 cleanup(dinfo); 880 return -ENODEV; 881 } 882 883 dinfo->registered = 1; 884 dinfo->open = 0; 885 886 init_waitqueue_head(&dinfo->vsync.wait); 887 spin_lock_init(&dinfo->int_lock); 888 dinfo->irq_flags = 0; 889 dinfo->vsync.pan_display = 0; 890 dinfo->vsync.pan_offset = 0; 891 892 return 0; 893 894 err_out_pixmap: 895 fb_dealloc_cmap(&info->cmap); 896 err_out_cmap: 897 framebuffer_release(info); 898 return -ENODEV; 899 } 900 901 static void intelfb_pci_unregister(struct pci_dev *pdev) 902 { 903 struct intelfb_info *dinfo = pci_get_drvdata(pdev); 904 905 DBG_MSG("intelfb_pci_unregister\n"); 906 907 if (!dinfo) 908 return; 909 910 cleanup(dinfo); 911 } 912 913 /*************************************************************** 914 * helper functions * 915 ***************************************************************/ 916 917 __inline__ int intelfb_var_to_depth(const struct fb_var_screeninfo *var) 918 { 919 DBG_MSG("intelfb_var_to_depth: bpp: %d, green.length is %d\n", 920 var->bits_per_pixel, var->green.length); 921 922 switch (var->bits_per_pixel) { 923 case 16: 924 return (var->green.length == 6) ? 16 : 15; 925 case 32: 926 return 24; 927 default: 928 return var->bits_per_pixel; 929 } 930 } 931 932 933 static __inline__ int var_to_refresh(const struct fb_var_screeninfo *var) 934 { 935 int xtot = var->xres + var->left_margin + var->right_margin + 936 var->hsync_len; 937 int ytot = var->yres + var->upper_margin + var->lower_margin + 938 var->vsync_len; 939 940 return (1000000000 / var->pixclock * 1000 + 500) / xtot / ytot; 941 } 942 943 /*************************************************************** 944 * Various initialisation functions * 945 ***************************************************************/ 946 947 static void get_initial_mode(struct intelfb_info *dinfo) 948 { 949 struct fb_var_screeninfo *var; 950 int xtot, ytot; 951 952 DBG_MSG("get_initial_mode\n"); 953 954 dinfo->initial_vga = 1; 955 dinfo->initial_fb_base = screen_info.lfb_base; 956 dinfo->initial_video_ram = screen_info.lfb_size * KB(64); 957 dinfo->initial_pitch = screen_info.lfb_linelength; 958 959 var = &dinfo->initial_var; 960 memset(var, 0, sizeof(*var)); 961 var->xres = screen_info.lfb_width; 962 var->yres = screen_info.lfb_height; 963 var->bits_per_pixel = screen_info.lfb_depth; 964 switch (screen_info.lfb_depth) { 965 case 15: 966 var->bits_per_pixel = 16; 967 break; 968 case 24: 969 var->bits_per_pixel = 32; 970 break; 971 } 972 973 DBG_MSG("Initial info: FB is 0x%x/0x%x (%d kByte)\n", 974 dinfo->initial_fb_base, dinfo->initial_video_ram, 975 BtoKB(dinfo->initial_video_ram)); 976 977 DBG_MSG("Initial info: mode is %dx%d-%d (%d)\n", 978 var->xres, var->yres, var->bits_per_pixel, 979 dinfo->initial_pitch); 980 981 /* Dummy timing values (assume 60Hz) */ 982 var->left_margin = (var->xres / 8) & 0xf8; 983 var->right_margin = 32; 984 var->upper_margin = 16; 985 var->lower_margin = 4; 986 var->hsync_len = (var->xres / 8) & 0xf8; 987 var->vsync_len = 4; 988 989 xtot = var->xres + var->left_margin + 990 var->right_margin + var->hsync_len; 991 ytot = var->yres + var->upper_margin + 992 var->lower_margin + var->vsync_len; 993 var->pixclock = 10000000 / xtot * 1000 / ytot * 100 / 60; 994 995 var->height = -1; 996 var->width = -1; 997 998 if (var->bits_per_pixel > 8) { 999 var->red.offset = screen_info.red_pos; 1000 var->red.length = screen_info.red_size; 1001 var->green.offset = screen_info.green_pos; 1002 var->green.length = screen_info.green_size; 1003 var->blue.offset = screen_info.blue_pos; 1004 var->blue.length = screen_info.blue_size; 1005 var->transp.offset = screen_info.rsvd_pos; 1006 var->transp.length = screen_info.rsvd_size; 1007 } else { 1008 var->red.length = 8; 1009 var->green.length = 8; 1010 var->blue.length = 8; 1011 } 1012 } 1013 1014 static int intelfb_init_var(struct intelfb_info *dinfo) 1015 { 1016 struct fb_var_screeninfo *var; 1017 int msrc = 0; 1018 1019 DBG_MSG("intelfb_init_var\n"); 1020 1021 var = &dinfo->info->var; 1022 if (FIXED_MODE(dinfo)) { 1023 memcpy(var, &dinfo->initial_var, 1024 sizeof(struct fb_var_screeninfo)); 1025 msrc = 5; 1026 } else { 1027 const u8 *edid_s = fb_firmware_edid(&dinfo->pdev->dev); 1028 u8 *edid_d = NULL; 1029 1030 if (edid_s) { 1031 edid_d = kmemdup(edid_s, EDID_LENGTH, GFP_KERNEL); 1032 1033 if (edid_d) { 1034 fb_edid_to_monspecs(edid_d, 1035 &dinfo->info->monspecs); 1036 kfree(edid_d); 1037 } 1038 } 1039 1040 if (mode) { 1041 printk("intelfb: Looking for mode in private " 1042 "database\n"); 1043 msrc = fb_find_mode(var, dinfo->info, mode, 1044 dinfo->info->monspecs.modedb, 1045 dinfo->info->monspecs.modedb_len, 1046 NULL, 0); 1047 1048 if (msrc && msrc > 1) { 1049 printk("intelfb: No mode in private database, " 1050 "intelfb: looking for mode in global " 1051 "database "); 1052 msrc = fb_find_mode(var, dinfo->info, mode, 1053 NULL, 0, NULL, 0); 1054 1055 if (msrc) 1056 msrc |= 8; 1057 } 1058 1059 } 1060 1061 if (!msrc) 1062 msrc = fb_find_mode(var, dinfo->info, PREFERRED_MODE, 1063 NULL, 0, NULL, 0); 1064 } 1065 1066 if (!msrc) { 1067 ERR_MSG("Cannot find a suitable video mode.\n"); 1068 return 1; 1069 } 1070 1071 INF_MSG("Initial video mode is %dx%d-%d@%d.\n", var->xres, var->yres, 1072 var->bits_per_pixel, var_to_refresh(var)); 1073 1074 DBG_MSG("Initial video mode is from %d.\n", msrc); 1075 1076 #if ALLOCATE_FOR_PANNING 1077 /* Allow use of half of the video ram for panning */ 1078 var->xres_virtual = var->xres; 1079 var->yres_virtual = 1080 dinfo->fb.size / 2 / (var->bits_per_pixel * var->xres); 1081 if (var->yres_virtual < var->yres) 1082 var->yres_virtual = var->yres; 1083 #else 1084 var->yres_virtual = var->yres; 1085 #endif 1086 1087 if (dinfo->accel) 1088 var->accel_flags |= FB_ACCELF_TEXT; 1089 else 1090 var->accel_flags &= ~FB_ACCELF_TEXT; 1091 1092 return 0; 1093 } 1094 1095 static int intelfb_set_fbinfo(struct intelfb_info *dinfo) 1096 { 1097 struct fb_info *info = dinfo->info; 1098 1099 DBG_MSG("intelfb_set_fbinfo\n"); 1100 1101 info->flags = FBINFO_FLAG_DEFAULT; 1102 info->fbops = &intel_fb_ops; 1103 info->pseudo_palette = dinfo->pseudo_palette; 1104 1105 info->pixmap.size = 64*1024; 1106 info->pixmap.buf_align = 8; 1107 info->pixmap.access_align = 32; 1108 info->pixmap.flags = FB_PIXMAP_SYSTEM; 1109 1110 if (intelfb_init_var(dinfo)) 1111 return 1; 1112 1113 info->pixmap.scan_align = 1; 1114 strcpy(info->fix.id, dinfo->name); 1115 info->fix.smem_start = dinfo->fb.physical; 1116 info->fix.smem_len = dinfo->fb.size; 1117 info->fix.type = FB_TYPE_PACKED_PIXELS; 1118 info->fix.type_aux = 0; 1119 info->fix.xpanstep = 8; 1120 info->fix.ypanstep = 1; 1121 info->fix.ywrapstep = 0; 1122 info->fix.mmio_start = dinfo->mmio_base_phys; 1123 info->fix.mmio_len = INTEL_REG_SIZE; 1124 info->fix.accel = FB_ACCEL_I830; 1125 update_dinfo(dinfo, &info->var); 1126 1127 return 0; 1128 } 1129 1130 /* Update dinfo to match the active video mode. */ 1131 static void update_dinfo(struct intelfb_info *dinfo, 1132 struct fb_var_screeninfo *var) 1133 { 1134 DBG_MSG("update_dinfo\n"); 1135 1136 dinfo->bpp = var->bits_per_pixel; 1137 dinfo->depth = intelfb_var_to_depth(var); 1138 dinfo->xres = var->xres; 1139 dinfo->yres = var->xres; 1140 dinfo->pixclock = var->pixclock; 1141 1142 dinfo->info->fix.visual = dinfo->visual; 1143 dinfo->info->fix.line_length = dinfo->pitch; 1144 1145 switch (dinfo->bpp) { 1146 case 8: 1147 dinfo->visual = FB_VISUAL_PSEUDOCOLOR; 1148 dinfo->pitch = var->xres_virtual; 1149 break; 1150 case 16: 1151 dinfo->visual = FB_VISUAL_TRUECOLOR; 1152 dinfo->pitch = var->xres_virtual * 2; 1153 break; 1154 case 32: 1155 dinfo->visual = FB_VISUAL_TRUECOLOR; 1156 dinfo->pitch = var->xres_virtual * 4; 1157 break; 1158 } 1159 1160 /* Make sure the line length is a aligned correctly. */ 1161 if (IS_I9XX(dinfo)) 1162 dinfo->pitch = ROUND_UP_TO(dinfo->pitch, STRIDE_ALIGNMENT_I9XX); 1163 else 1164 dinfo->pitch = ROUND_UP_TO(dinfo->pitch, STRIDE_ALIGNMENT); 1165 1166 if (FIXED_MODE(dinfo)) 1167 dinfo->pitch = dinfo->initial_pitch; 1168 1169 dinfo->info->screen_base = (char __iomem *)dinfo->fb.virtual; 1170 dinfo->info->fix.line_length = dinfo->pitch; 1171 dinfo->info->fix.visual = dinfo->visual; 1172 } 1173 1174 /* fbops functions */ 1175 1176 /*************************************************************** 1177 * fbdev interface * 1178 ***************************************************************/ 1179 1180 static int intelfb_open(struct fb_info *info, int user) 1181 { 1182 struct intelfb_info *dinfo = GET_DINFO(info); 1183 1184 if (user) 1185 dinfo->open++; 1186 1187 return 0; 1188 } 1189 1190 static int intelfb_release(struct fb_info *info, int user) 1191 { 1192 struct intelfb_info *dinfo = GET_DINFO(info); 1193 1194 if (user) { 1195 dinfo->open--; 1196 msleep(1); 1197 if (!dinfo->open) 1198 intelfbhw_disable_irq(dinfo); 1199 } 1200 1201 return 0; 1202 } 1203 1204 static int intelfb_check_var(struct fb_var_screeninfo *var, 1205 struct fb_info *info) 1206 { 1207 int change_var = 0; 1208 struct fb_var_screeninfo v; 1209 struct intelfb_info *dinfo; 1210 static int first = 1; 1211 int i; 1212 /* Good pitches to allow tiling. Don't care about pitches < 1024. */ 1213 static const int pitches[] = { 1214 128 * 8, 1215 128 * 16, 1216 128 * 32, 1217 128 * 64, 1218 0 1219 }; 1220 1221 DBG_MSG("intelfb_check_var: accel_flags is %d\n", var->accel_flags); 1222 1223 dinfo = GET_DINFO(info); 1224 1225 if (!var->pixclock) 1226 return -EINVAL; 1227 1228 /* update the pitch */ 1229 if (intelfbhw_validate_mode(dinfo, var) != 0) 1230 return -EINVAL; 1231 1232 v = *var; 1233 1234 for (i = 0; pitches[i] != 0; i++) { 1235 if (pitches[i] >= v.xres_virtual) { 1236 v.xres_virtual = pitches[i]; 1237 break; 1238 } 1239 } 1240 1241 /* Check for a supported bpp. */ 1242 if (v.bits_per_pixel <= 8) 1243 v.bits_per_pixel = 8; 1244 else if (v.bits_per_pixel <= 16) { 1245 if (v.bits_per_pixel == 16) 1246 v.green.length = 6; 1247 v.bits_per_pixel = 16; 1248 } else if (v.bits_per_pixel <= 32) 1249 v.bits_per_pixel = 32; 1250 else 1251 return -EINVAL; 1252 1253 change_var = ((info->var.xres != var->xres) || 1254 (info->var.yres != var->yres) || 1255 (info->var.xres_virtual != var->xres_virtual) || 1256 (info->var.yres_virtual != var->yres_virtual) || 1257 (info->var.bits_per_pixel != var->bits_per_pixel) || 1258 memcmp(&info->var.red, &var->red, sizeof(var->red)) || 1259 memcmp(&info->var.green, &var->green, 1260 sizeof(var->green)) || 1261 memcmp(&info->var.blue, &var->blue, sizeof(var->blue))); 1262 1263 if (FIXED_MODE(dinfo) && 1264 (change_var || 1265 var->yres_virtual > dinfo->initial_var.yres_virtual || 1266 var->yres_virtual < dinfo->initial_var.yres || 1267 var->xoffset || var->nonstd)) { 1268 if (first) { 1269 ERR_MSG("Changing the video mode is not supported.\n"); 1270 first = 0; 1271 } 1272 return -EINVAL; 1273 } 1274 1275 switch (intelfb_var_to_depth(&v)) { 1276 case 8: 1277 v.red.offset = v.green.offset = v.blue.offset = 0; 1278 v.red.length = v.green.length = v.blue.length = 8; 1279 v.transp.offset = v.transp.length = 0; 1280 break; 1281 case 15: 1282 v.red.offset = 10; 1283 v.green.offset = 5; 1284 v.blue.offset = 0; 1285 v.red.length = v.green.length = v.blue.length = 5; 1286 v.transp.offset = v.transp.length = 0; 1287 break; 1288 case 16: 1289 v.red.offset = 11; 1290 v.green.offset = 5; 1291 v.blue.offset = 0; 1292 v.red.length = 5; 1293 v.green.length = 6; 1294 v.blue.length = 5; 1295 v.transp.offset = v.transp.length = 0; 1296 break; 1297 case 24: 1298 v.red.offset = 16; 1299 v.green.offset = 8; 1300 v.blue.offset = 0; 1301 v.red.length = v.green.length = v.blue.length = 8; 1302 v.transp.offset = v.transp.length = 0; 1303 break; 1304 case 32: 1305 v.red.offset = 16; 1306 v.green.offset = 8; 1307 v.blue.offset = 0; 1308 v.red.length = v.green.length = v.blue.length = 8; 1309 v.transp.offset = 24; 1310 v.transp.length = 8; 1311 break; 1312 } 1313 1314 if (v.xoffset > v.xres_virtual - v.xres) 1315 v.xoffset = v.xres_virtual - v.xres; 1316 if (v.yoffset > v.yres_virtual - v.yres) 1317 v.yoffset = v.yres_virtual - v.yres; 1318 1319 v.red.msb_right = v.green.msb_right = v.blue.msb_right = 1320 v.transp.msb_right = 0; 1321 1322 *var = v; 1323 1324 return 0; 1325 } 1326 1327 static int intelfb_set_par(struct fb_info *info) 1328 { 1329 struct intelfb_hwstate *hw; 1330 struct intelfb_info *dinfo = GET_DINFO(info); 1331 1332 if (FIXED_MODE(dinfo)) { 1333 ERR_MSG("Changing the video mode is not supported.\n"); 1334 return -EINVAL; 1335 } 1336 1337 hw = kmalloc(sizeof(*hw), GFP_ATOMIC); 1338 if (!hw) 1339 return -ENOMEM; 1340 1341 DBG_MSG("intelfb_set_par (%dx%d-%d)\n", info->var.xres, 1342 info->var.yres, info->var.bits_per_pixel); 1343 1344 /* 1345 * Disable VCO prior to timing register change. 1346 */ 1347 OUTREG(DPLL_A, INREG(DPLL_A) & ~DPLL_VCO_ENABLE); 1348 1349 intelfb_blank(FB_BLANK_POWERDOWN, info); 1350 1351 if (ACCEL(dinfo, info)) 1352 intelfbhw_2d_stop(dinfo); 1353 1354 memcpy(hw, &dinfo->save_state, sizeof(*hw)); 1355 if (intelfbhw_mode_to_hw(dinfo, hw, &info->var)) 1356 goto invalid_mode; 1357 if (intelfbhw_program_mode(dinfo, hw, 0)) 1358 goto invalid_mode; 1359 1360 #if REGDUMP > 0 1361 intelfbhw_read_hw_state(dinfo, hw, 0); 1362 intelfbhw_print_hw_state(dinfo, hw); 1363 #endif 1364 1365 update_dinfo(dinfo, &info->var); 1366 1367 if (ACCEL(dinfo, info)) 1368 intelfbhw_2d_start(dinfo); 1369 1370 intelfb_pan_display(&info->var, info); 1371 1372 intelfb_blank(FB_BLANK_UNBLANK, info); 1373 1374 if (ACCEL(dinfo, info)) { 1375 info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN | 1376 FBINFO_HWACCEL_COPYAREA | FBINFO_HWACCEL_FILLRECT | 1377 FBINFO_HWACCEL_IMAGEBLIT; 1378 } else 1379 info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN; 1380 1381 kfree(hw); 1382 return 0; 1383 invalid_mode: 1384 kfree(hw); 1385 return -EINVAL; 1386 } 1387 1388 static int intelfb_setcolreg(unsigned regno, unsigned red, unsigned green, 1389 unsigned blue, unsigned transp, 1390 struct fb_info *info) 1391 { 1392 struct intelfb_info *dinfo = GET_DINFO(info); 1393 1394 #if VERBOSE > 0 1395 DBG_MSG("intelfb_setcolreg: regno %d, depth %d\n", regno, dinfo->depth); 1396 #endif 1397 1398 if (regno > 255) 1399 return 1; 1400 1401 if (dinfo->depth == 8) { 1402 red >>= 8; 1403 green >>= 8; 1404 blue >>= 8; 1405 1406 intelfbhw_setcolreg(dinfo, regno, red, green, blue, 1407 transp); 1408 } 1409 1410 if (regno < 16) { 1411 switch (dinfo->depth) { 1412 case 15: 1413 dinfo->pseudo_palette[regno] = ((red & 0xf800) >> 1) | 1414 ((green & 0xf800) >> 6) | 1415 ((blue & 0xf800) >> 11); 1416 break; 1417 case 16: 1418 dinfo->pseudo_palette[regno] = (red & 0xf800) | 1419 ((green & 0xfc00) >> 5) | 1420 ((blue & 0xf800) >> 11); 1421 break; 1422 case 24: 1423 dinfo->pseudo_palette[regno] = ((red & 0xff00) << 8) | 1424 (green & 0xff00) | 1425 ((blue & 0xff00) >> 8); 1426 break; 1427 } 1428 } 1429 1430 return 0; 1431 } 1432 1433 static int intelfb_blank(int blank, struct fb_info *info) 1434 { 1435 intelfbhw_do_blank(blank, info); 1436 return 0; 1437 } 1438 1439 static int intelfb_pan_display(struct fb_var_screeninfo *var, 1440 struct fb_info *info) 1441 { 1442 intelfbhw_pan_display(var, info); 1443 return 0; 1444 } 1445 1446 /* When/if we have our own ioctls. */ 1447 static int intelfb_ioctl(struct fb_info *info, unsigned int cmd, 1448 unsigned long arg) 1449 { 1450 int retval = 0; 1451 struct intelfb_info *dinfo = GET_DINFO(info); 1452 u32 pipe = 0; 1453 1454 switch (cmd) { 1455 case FBIO_WAITFORVSYNC: 1456 if (get_user(pipe, (__u32 __user *)arg)) 1457 return -EFAULT; 1458 1459 retval = intelfbhw_wait_for_vsync(dinfo, pipe); 1460 break; 1461 default: 1462 break; 1463 } 1464 1465 return retval; 1466 } 1467 1468 static void intelfb_fillrect (struct fb_info *info, 1469 const struct fb_fillrect *rect) 1470 { 1471 struct intelfb_info *dinfo = GET_DINFO(info); 1472 u32 rop, color; 1473 1474 #if VERBOSE > 0 1475 DBG_MSG("intelfb_fillrect\n"); 1476 #endif 1477 1478 if (!ACCEL(dinfo, info) || dinfo->depth == 4) { 1479 cfb_fillrect(info, rect); 1480 return; 1481 } 1482 1483 if (rect->rop == ROP_COPY) 1484 rop = PAT_ROP_GXCOPY; 1485 else /* ROP_XOR */ 1486 rop = PAT_ROP_GXXOR; 1487 1488 if (dinfo->depth != 8) 1489 color = dinfo->pseudo_palette[rect->color]; 1490 else 1491 color = rect->color; 1492 1493 intelfbhw_do_fillrect(dinfo, rect->dx, rect->dy, 1494 rect->width, rect->height, color, 1495 dinfo->pitch, info->var.bits_per_pixel, 1496 rop); 1497 } 1498 1499 static void intelfb_copyarea(struct fb_info *info, 1500 const struct fb_copyarea *region) 1501 { 1502 struct intelfb_info *dinfo = GET_DINFO(info); 1503 1504 #if VERBOSE > 0 1505 DBG_MSG("intelfb_copyarea\n"); 1506 #endif 1507 1508 if (!ACCEL(dinfo, info) || dinfo->depth == 4) { 1509 cfb_copyarea(info, region); 1510 return; 1511 } 1512 1513 intelfbhw_do_bitblt(dinfo, region->sx, region->sy, region->dx, 1514 region->dy, region->width, region->height, 1515 dinfo->pitch, info->var.bits_per_pixel); 1516 } 1517 1518 static void intelfb_imageblit(struct fb_info *info, 1519 const struct fb_image *image) 1520 { 1521 struct intelfb_info *dinfo = GET_DINFO(info); 1522 u32 fgcolor, bgcolor; 1523 1524 #if VERBOSE > 0 1525 DBG_MSG("intelfb_imageblit\n"); 1526 #endif 1527 1528 if (!ACCEL(dinfo, info) || dinfo->depth == 4 1529 || image->depth != 1) { 1530 cfb_imageblit(info, image); 1531 return; 1532 } 1533 1534 if (dinfo->depth != 8) { 1535 fgcolor = dinfo->pseudo_palette[image->fg_color]; 1536 bgcolor = dinfo->pseudo_palette[image->bg_color]; 1537 } else { 1538 fgcolor = image->fg_color; 1539 bgcolor = image->bg_color; 1540 } 1541 1542 if (!intelfbhw_do_drawglyph(dinfo, fgcolor, bgcolor, image->width, 1543 image->height, image->data, 1544 image->dx, image->dy, 1545 dinfo->pitch, info->var.bits_per_pixel)) { 1546 cfb_imageblit(info, image); 1547 return; 1548 } 1549 } 1550 1551 static int intelfb_cursor(struct fb_info *info, struct fb_cursor *cursor) 1552 { 1553 struct intelfb_info *dinfo = GET_DINFO(info); 1554 u32 physical; 1555 #if VERBOSE > 0 1556 DBG_MSG("intelfb_cursor\n"); 1557 #endif 1558 1559 if (!dinfo->hwcursor) 1560 return -ENODEV; 1561 1562 intelfbhw_cursor_hide(dinfo); 1563 1564 /* If XFree killed the cursor - restore it */ 1565 physical = (dinfo->mobile || IS_I9XX(dinfo)) ? dinfo->cursor.physical : 1566 (dinfo->cursor.offset << 12); 1567 1568 if (INREG(CURSOR_A_BASEADDR) != physical) { 1569 u32 fg, bg; 1570 1571 DBG_MSG("the cursor was killed - restore it !!\n"); 1572 DBG_MSG("size %d, %d pos %d, %d\n", 1573 cursor->image.width, cursor->image.height, 1574 cursor->image.dx, cursor->image.dy); 1575 1576 intelfbhw_cursor_init(dinfo); 1577 intelfbhw_cursor_reset(dinfo); 1578 intelfbhw_cursor_setpos(dinfo, cursor->image.dx, 1579 cursor->image.dy); 1580 1581 if (dinfo->depth != 8) { 1582 fg =dinfo->pseudo_palette[cursor->image.fg_color]; 1583 bg =dinfo->pseudo_palette[cursor->image.bg_color]; 1584 } else { 1585 fg = cursor->image.fg_color; 1586 bg = cursor->image.bg_color; 1587 } 1588 intelfbhw_cursor_setcolor(dinfo, bg, fg); 1589 intelfbhw_cursor_load(dinfo, cursor->image.width, 1590 cursor->image.height, 1591 dinfo->cursor_src); 1592 1593 if (cursor->enable) 1594 intelfbhw_cursor_show(dinfo); 1595 return 0; 1596 } 1597 1598 if (cursor->set & FB_CUR_SETPOS) { 1599 u32 dx, dy; 1600 1601 dx = cursor->image.dx - info->var.xoffset; 1602 dy = cursor->image.dy - info->var.yoffset; 1603 1604 intelfbhw_cursor_setpos(dinfo, dx, dy); 1605 } 1606 1607 if (cursor->set & FB_CUR_SETSIZE) { 1608 if (cursor->image.width > 64 || cursor->image.height > 64) 1609 return -ENXIO; 1610 1611 intelfbhw_cursor_reset(dinfo); 1612 } 1613 1614 if (cursor->set & FB_CUR_SETCMAP) { 1615 u32 fg, bg; 1616 1617 if (dinfo->depth != 8) { 1618 fg = dinfo->pseudo_palette[cursor->image.fg_color]; 1619 bg = dinfo->pseudo_palette[cursor->image.bg_color]; 1620 } else { 1621 fg = cursor->image.fg_color; 1622 bg = cursor->image.bg_color; 1623 } 1624 1625 intelfbhw_cursor_setcolor(dinfo, bg, fg); 1626 } 1627 1628 if (cursor->set & (FB_CUR_SETSHAPE | FB_CUR_SETIMAGE)) { 1629 u32 s_pitch = (ROUND_UP_TO(cursor->image.width, 8) / 8); 1630 u32 size = s_pitch * cursor->image.height; 1631 u8 *dat = (u8 *) cursor->image.data; 1632 u8 *msk = (u8 *) cursor->mask; 1633 u8 src[64]; 1634 u32 i; 1635 1636 if (cursor->image.depth != 1) 1637 return -ENXIO; 1638 1639 switch (cursor->rop) { 1640 case ROP_XOR: 1641 for (i = 0; i < size; i++) 1642 src[i] = dat[i] ^ msk[i]; 1643 break; 1644 case ROP_COPY: 1645 default: 1646 for (i = 0; i < size; i++) 1647 src[i] = dat[i] & msk[i]; 1648 break; 1649 } 1650 1651 /* save the bitmap to restore it when XFree will 1652 make the cursor dirty */ 1653 memcpy(dinfo->cursor_src, src, size); 1654 1655 intelfbhw_cursor_load(dinfo, cursor->image.width, 1656 cursor->image.height, src); 1657 } 1658 1659 if (cursor->enable) 1660 intelfbhw_cursor_show(dinfo); 1661 1662 return 0; 1663 } 1664 1665 static int intelfb_sync(struct fb_info *info) 1666 { 1667 struct intelfb_info *dinfo = GET_DINFO(info); 1668 1669 #if VERBOSE > 0 1670 DBG_MSG("intelfb_sync\n"); 1671 #endif 1672 1673 if (dinfo->ring_lockup) 1674 return 0; 1675 1676 intelfbhw_do_sync(dinfo); 1677 return 0; 1678 } 1679 1680