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