1 /* 2 * intelfb 3 * 4 * Linux framebuffer driver for Intel(R) 830M/845G/852GM/855GM/865G/915G/915GM/ 5 * 945G/945GM/945GME/965G/965GM integrated graphics chips. 6 * 7 * Copyright © 2002, 2003 David Dawes <dawes@xfree86.org> 8 * 2004 Sylvain Meyer 9 * 2006 David Airlie 10 * 11 * This driver consists of two parts. The first part (intelfbdrv.c) provides 12 * the basic fbdev interfaces, is derived in part from the radeonfb and 13 * vesafb drivers, and is covered by the GPL. The second part (intelfbhw.c) 14 * provides the code to program the hardware. Most of it is derived from 15 * the i810/i830 XFree86 driver. The HW-specific code is covered here 16 * under a dual license (GPL and MIT/XFree86 license). 17 * 18 * Author: David Dawes 19 * 20 */ 21 22 /* $DHD: intelfb/intelfbdrv.c,v 1.20 2003/06/27 15:17:40 dawes Exp $ */ 23 24 /* 25 * Changes: 26 * 01/2003 - Initial driver (0.1.0), no mode switching, no acceleration. 27 * This initial version is a basic core that works a lot like 28 * the vesafb driver. It must be built-in to the kernel, 29 * and the initial video mode must be set with vga=XXX at 30 * boot time. (David Dawes) 31 * 32 * 01/2003 - Version 0.2.0: Mode switching added, colormap support 33 * implemented, Y panning, and soft screen blanking implemented. 34 * No acceleration yet. (David Dawes) 35 * 36 * 01/2003 - Version 0.3.0: fbcon acceleration support added. Module 37 * option handling added. (David Dawes) 38 * 39 * 01/2003 - Version 0.4.0: fbcon HW cursor support added. (David Dawes) 40 * 41 * 01/2003 - Version 0.4.1: Add auto-generation of built-in modes. 42 * (David Dawes) 43 * 44 * 02/2003 - Version 0.4.2: Add check for active non-CRT devices, and 45 * mode validation checks. (David Dawes) 46 * 47 * 02/2003 - Version 0.4.3: Check when the VC is in graphics mode so that 48 * acceleration is disabled while an XFree86 server is running. 49 * (David Dawes) 50 * 51 * 02/2003 - Version 0.4.4: Monitor DPMS support. (David Dawes) 52 * 53 * 02/2003 - Version 0.4.5: Basic XFree86 + fbdev working. (David Dawes) 54 * 55 * 02/2003 - Version 0.5.0: Modify to work with the 2.5.32 kernel as well 56 * as 2.4.x kernels. (David Dawes) 57 * 58 * 02/2003 - Version 0.6.0: Split out HW-specifics into a separate file. 59 * (David Dawes) 60 * 61 * 02/2003 - Version 0.7.0: Test on 852GM/855GM. Acceleration and HW 62 * cursor are disabled on this platform. (David Dawes) 63 * 64 * 02/2003 - Version 0.7.1: Test on 845G. Acceleration is disabled 65 * on this platform. (David Dawes) 66 * 67 * 02/2003 - Version 0.7.2: Test on 830M. Acceleration and HW 68 * cursor are disabled on this platform. (David Dawes) 69 * 70 * 02/2003 - Version 0.7.3: Fix 8-bit modes for mobile platforms 71 * (David Dawes) 72 * 73 * 02/2003 - Version 0.7.4: Add checks for FB and FBCON_HAS_CFB* configured 74 * in the kernel, and add mode bpp verification and default 75 * bpp selection based on which FBCON_HAS_CFB* are configured. 76 * (David Dawes) 77 * 78 * 02/2003 - Version 0.7.5: Add basic package/install scripts based on the 79 * DRI packaging scripts. (David Dawes) 80 * 81 * 04/2003 - Version 0.7.6: Fix typo that affects builds with SMP-enabled 82 * kernels. (David Dawes, reported by Anupam). 83 * 84 * 06/2003 - Version 0.7.7: 85 * Fix Makefile.kernel build problem (Tsutomu Yasuda). 86 * Fix mis-placed #endif (2.4.21 kernel). 87 * 88 * 09/2004 - Version 0.9.0 - by Sylvain Meyer 89 * Port to linux 2.6 kernel fbdev 90 * Fix HW accel and HW cursor on i845G 91 * Use of agpgart for fb memory reservation 92 * Add mtrr support 93 * 94 * 10/2004 - Version 0.9.1 95 * Use module_param instead of old MODULE_PARM 96 * Some cleanup 97 * 98 * 11/2004 - Version 0.9.2 99 * Add vram option to reserve more memory than stolen by BIOS 100 * Fix intelfbhw_pan_display typo 101 * Add __initdata annotations 102 * 103 * 04/2008 - Version 0.9.5 104 * Add support for 965G/965GM. (Maik Broemme <mbroemme@plusserver.de>) 105 * 106 * 08/2008 - Version 0.9.6 107 * Add support for 945GME. (Phil Endecott <spam_from_intelfb@chezphil.org>) 108 */ 109 110 #include <linux/module.h> 111 #include <linux/kernel.h> 112 #include <linux/errno.h> 113 #include <linux/string.h> 114 #include <linux/mm.h> 115 #include <linux/slab.h> 116 #include <linux/delay.h> 117 #include <linux/fb.h> 118 #include <linux/ioport.h> 119 #include <linux/init.h> 120 #include <linux/pci.h> 121 #include <linux/vmalloc.h> 122 #include <linux/pagemap.h> 123 #include <linux/screen_info.h> 124 125 #include <asm/io.h> 126 127 #include "intelfb.h" 128 #include "intelfbhw.h" 129 #include "../edid.h" 130 131 static void get_initial_mode(struct intelfb_info *dinfo); 132 static void update_dinfo(struct intelfb_info *dinfo, 133 struct fb_var_screeninfo *var); 134 static int intelfb_open(struct fb_info *info, int user); 135 static int intelfb_release(struct fb_info *info, int user); 136 static int intelfb_check_var(struct fb_var_screeninfo *var, 137 struct fb_info *info); 138 static int intelfb_set_par(struct fb_info *info); 139 static int intelfb_setcolreg(unsigned regno, unsigned red, unsigned green, 140 unsigned blue, unsigned transp, 141 struct fb_info *info); 142 143 static int intelfb_blank(int blank, struct fb_info *info); 144 static int intelfb_pan_display(struct fb_var_screeninfo *var, 145 struct fb_info *info); 146 147 static void intelfb_fillrect(struct fb_info *info, 148 const struct fb_fillrect *rect); 149 static void intelfb_copyarea(struct fb_info *info, 150 const struct fb_copyarea *region); 151 static void intelfb_imageblit(struct fb_info *info, 152 const struct fb_image *image); 153 static int intelfb_cursor(struct fb_info *info, 154 struct fb_cursor *cursor); 155 156 static int intelfb_sync(struct fb_info *info); 157 158 static int intelfb_ioctl(struct fb_info *info, 159 unsigned int cmd, unsigned long arg); 160 161 static int intelfb_pci_register(struct pci_dev *pdev, 162 const struct pci_device_id *ent); 163 static void intelfb_pci_unregister(struct pci_dev *pdev); 164 static int intelfb_set_fbinfo(struct intelfb_info *dinfo); 165 166 /* 167 * Limiting the class to PCI_CLASS_DISPLAY_VGA prevents function 1 of the 168 * mobile chipsets from being registered. 169 */ 170 #if DETECT_VGA_CLASS_ONLY 171 #define INTELFB_CLASS_MASK ~0 << 8 172 #else 173 #define INTELFB_CLASS_MASK 0 174 #endif 175 176 static struct pci_device_id intelfb_pci_table[] = { 177 { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_830M, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, INTELFB_CLASS_MASK, INTEL_830M }, 178 { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_845G, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, INTELFB_CLASS_MASK, INTEL_845G }, 179 { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_85XGM, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, INTELFB_CLASS_MASK, INTEL_85XGM }, 180 { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_865G, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, INTELFB_CLASS_MASK, INTEL_865G }, 181 { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_854, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, INTELFB_CLASS_MASK, INTEL_854 }, 182 { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_915G, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, INTELFB_CLASS_MASK, INTEL_915G }, 183 { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_915GM, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, INTELFB_CLASS_MASK, INTEL_915GM }, 184 { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_945G, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, INTELFB_CLASS_MASK, INTEL_945G }, 185 { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_945GM, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, INTELFB_CLASS_MASK, INTEL_945GM }, 186 { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_945GME, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, INTELFB_CLASS_MASK, INTEL_945GME }, 187 { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_965G, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, INTELFB_CLASS_MASK, INTEL_965G }, 188 { PCI_VENDOR_ID_INTEL, PCI_DEVICE_ID_INTEL_965GM, PCI_ANY_ID, PCI_ANY_ID, PCI_CLASS_DISPLAY_VGA << 8, INTELFB_CLASS_MASK, INTEL_965GM }, 189 { 0, } 190 }; 191 192 /* Global data */ 193 static int num_registered = 0; 194 195 /* fb ops */ 196 static struct fb_ops intel_fb_ops = { 197 .owner = THIS_MODULE, 198 .fb_open = intelfb_open, 199 .fb_release = intelfb_release, 200 .fb_check_var = intelfb_check_var, 201 .fb_set_par = intelfb_set_par, 202 .fb_setcolreg = intelfb_setcolreg, 203 .fb_blank = intelfb_blank, 204 .fb_pan_display = intelfb_pan_display, 205 .fb_fillrect = intelfb_fillrect, 206 .fb_copyarea = intelfb_copyarea, 207 .fb_imageblit = intelfb_imageblit, 208 .fb_cursor = intelfb_cursor, 209 .fb_sync = intelfb_sync, 210 .fb_ioctl = intelfb_ioctl 211 }; 212 213 /* PCI driver module table */ 214 static struct pci_driver intelfb_driver = { 215 .name = "intelfb", 216 .id_table = intelfb_pci_table, 217 .probe = intelfb_pci_register, 218 .remove = intelfb_pci_unregister, 219 }; 220 221 /* Module description/parameters */ 222 MODULE_AUTHOR("David Dawes <dawes@tungstengraphics.com>, " 223 "Sylvain Meyer <sylvain.meyer@worldonline.fr>"); 224 MODULE_DESCRIPTION("Framebuffer driver for Intel(R) " SUPPORTED_CHIPSETS 225 " chipsets"); 226 MODULE_LICENSE("Dual BSD/GPL"); 227 MODULE_DEVICE_TABLE(pci, intelfb_pci_table); 228 229 static bool accel = 1; 230 static int vram = 4; 231 static bool hwcursor = 0; 232 static bool mtrr = 1; 233 static bool fixed = 0; 234 static bool noinit = 0; 235 static bool noregister = 0; 236 static bool probeonly = 0; 237 static bool idonly = 0; 238 static int bailearly = 0; 239 static int voffset = 48; 240 static char *mode = NULL; 241 242 module_param(accel, bool, S_IRUGO); 243 MODULE_PARM_DESC(accel, "Enable hardware acceleration"); 244 module_param(vram, int, S_IRUGO); 245 MODULE_PARM_DESC(vram, "System RAM to allocate to framebuffer in MiB"); 246 module_param(voffset, int, S_IRUGO); 247 MODULE_PARM_DESC(voffset, "Offset of framebuffer in MiB"); 248 module_param(hwcursor, bool, S_IRUGO); 249 MODULE_PARM_DESC(hwcursor, "Enable HW cursor"); 250 module_param(mtrr, bool, S_IRUGO); 251 MODULE_PARM_DESC(mtrr, "Enable MTRR support"); 252 module_param(fixed, bool, S_IRUGO); 253 MODULE_PARM_DESC(fixed, "Disable mode switching"); 254 module_param(noinit, bool, 0); 255 MODULE_PARM_DESC(noinit, "Don't initialise graphics mode when loading"); 256 module_param(noregister, bool, 0); 257 MODULE_PARM_DESC(noregister, "Don't register, just probe and exit (debug)"); 258 module_param(probeonly, bool, 0); 259 MODULE_PARM_DESC(probeonly, "Do a minimal probe (debug)"); 260 module_param(idonly, bool, 0); 261 MODULE_PARM_DESC(idonly, "Just identify without doing anything else (debug)"); 262 module_param(bailearly, int, 0); 263 MODULE_PARM_DESC(bailearly, "Bail out early, depending on value (debug)"); 264 module_param(mode, charp, S_IRUGO); 265 MODULE_PARM_DESC(mode, 266 "Initial video mode \"<xres>x<yres>[-<depth>][@<refresh>]\""); 267 268 #ifndef MODULE 269 #define OPT_EQUAL(opt, name) (!strncmp(opt, name, strlen(name))) 270 #define OPT_INTVAL(opt, name) simple_strtoul(opt + strlen(name) + 1, NULL, 0) 271 #define OPT_STRVAL(opt, name) (opt + strlen(name)) 272 273 static __inline__ char * get_opt_string(const char *this_opt, const char *name) 274 { 275 const char *p; 276 int i; 277 char *ret; 278 279 p = OPT_STRVAL(this_opt, name); 280 i = 0; 281 while (p[i] && p[i] != ' ' && p[i] != ',') 282 i++; 283 ret = kmalloc(i + 1, GFP_KERNEL); 284 if (ret) { 285 strncpy(ret, p, i); 286 ret[i] = '\0'; 287 } 288 return ret; 289 } 290 291 static __inline__ int get_opt_int(const char *this_opt, const char *name, 292 int *ret) 293 { 294 if (!ret) 295 return 0; 296 297 if (!OPT_EQUAL(this_opt, name)) 298 return 0; 299 300 *ret = OPT_INTVAL(this_opt, name); 301 return 1; 302 } 303 304 static __inline__ int get_opt_bool(const char *this_opt, const char *name, 305 bool *ret) 306 { 307 if (!ret) 308 return 0; 309 310 if (OPT_EQUAL(this_opt, name)) { 311 if (this_opt[strlen(name)] == '=') 312 *ret = simple_strtoul(this_opt + strlen(name) + 1, 313 NULL, 0); 314 else 315 *ret = 1; 316 } else { 317 if (OPT_EQUAL(this_opt, "no") && OPT_EQUAL(this_opt + 2, name)) 318 *ret = 0; 319 else 320 return 0; 321 } 322 return 1; 323 } 324 325 static int __init intelfb_setup(char *options) 326 { 327 char *this_opt; 328 329 DBG_MSG("intelfb_setup\n"); 330 331 if (!options || !*options) { 332 DBG_MSG("no options\n"); 333 return 0; 334 } else 335 DBG_MSG("options: %s\n", options); 336 337 /* 338 * These are the built-in options analogous to the module parameters 339 * defined above. 340 * 341 * The syntax is: 342 * 343 * video=intelfb:[mode][,<param>=<val>] ... 344 * 345 * e.g., 346 * 347 * video=intelfb:1024x768-16@75,accel=0 348 */ 349 350 while ((this_opt = strsep(&options, ","))) { 351 if (!*this_opt) 352 continue; 353 if (get_opt_bool(this_opt, "accel", &accel)) 354 ; 355 else if (get_opt_int(this_opt, "vram", &vram)) 356 ; 357 else if (get_opt_bool(this_opt, "hwcursor", &hwcursor)) 358 ; 359 else if (get_opt_bool(this_opt, "mtrr", &mtrr)) 360 ; 361 else if (get_opt_bool(this_opt, "fixed", &fixed)) 362 ; 363 else if (get_opt_bool(this_opt, "init", &noinit)) 364 noinit = !noinit; 365 else if (OPT_EQUAL(this_opt, "mode=")) 366 mode = get_opt_string(this_opt, "mode="); 367 else 368 mode = this_opt; 369 } 370 371 return 0; 372 } 373 374 #endif 375 376 static int __init intelfb_init(void) 377 { 378 #ifndef MODULE 379 char *option = NULL; 380 #endif 381 382 DBG_MSG("intelfb_init\n"); 383 384 INF_MSG("Framebuffer driver for " 385 "Intel(R) " SUPPORTED_CHIPSETS " chipsets\n"); 386 INF_MSG("Version " INTELFB_VERSION "\n"); 387 388 if (idonly) 389 return -ENODEV; 390 391 #ifndef MODULE 392 if (fb_get_options("intelfb", &option)) 393 return -ENODEV; 394 intelfb_setup(option); 395 #endif 396 397 return pci_register_driver(&intelfb_driver); 398 } 399 400 static void __exit intelfb_exit(void) 401 { 402 DBG_MSG("intelfb_exit\n"); 403 pci_unregister_driver(&intelfb_driver); 404 } 405 406 module_init(intelfb_init); 407 module_exit(intelfb_exit); 408 409 /*************************************************************** 410 * driver init / cleanup * 411 ***************************************************************/ 412 413 static void cleanup(struct intelfb_info *dinfo) 414 { 415 DBG_MSG("cleanup\n"); 416 417 if (!dinfo) 418 return; 419 420 intelfbhw_disable_irq(dinfo); 421 422 fb_dealloc_cmap(&dinfo->info->cmap); 423 kfree(dinfo->info->pixmap.addr); 424 425 if (dinfo->registered) 426 unregister_framebuffer(dinfo->info); 427 428 arch_phys_wc_del(dinfo->wc_cookie); 429 430 if (dinfo->fbmem_gart && dinfo->gtt_fb_mem) { 431 agp_unbind_memory(dinfo->gtt_fb_mem); 432 agp_free_memory(dinfo->gtt_fb_mem); 433 } 434 if (dinfo->gtt_cursor_mem) { 435 agp_unbind_memory(dinfo->gtt_cursor_mem); 436 agp_free_memory(dinfo->gtt_cursor_mem); 437 } 438 if (dinfo->gtt_ring_mem) { 439 agp_unbind_memory(dinfo->gtt_ring_mem); 440 agp_free_memory(dinfo->gtt_ring_mem); 441 } 442 443 #ifdef CONFIG_FB_INTEL_I2C 444 /* un-register I2C bus */ 445 intelfb_delete_i2c_busses(dinfo); 446 #endif 447 448 if (dinfo->mmio_base) 449 iounmap((void __iomem *)dinfo->mmio_base); 450 if (dinfo->aperture.virtual) 451 iounmap((void __iomem *)dinfo->aperture.virtual); 452 453 if (dinfo->flag & INTELFB_MMIO_ACQUIRED) 454 release_mem_region(dinfo->mmio_base_phys, INTEL_REG_SIZE); 455 if (dinfo->flag & INTELFB_FB_ACQUIRED) 456 release_mem_region(dinfo->aperture.physical, 457 dinfo->aperture.size); 458 framebuffer_release(dinfo->info); 459 } 460 461 #define bailout(dinfo) do { \ 462 DBG_MSG("bailout\n"); \ 463 cleanup(dinfo); \ 464 INF_MSG("Not going to register framebuffer, exiting...\n"); \ 465 return -ENODEV; \ 466 } while (0) 467 468 469 static int intelfb_pci_register(struct pci_dev *pdev, 470 const struct pci_device_id *ent) 471 { 472 struct fb_info *info; 473 struct intelfb_info *dinfo; 474 int i, err, dvo; 475 int aperture_size, stolen_size; 476 struct agp_kern_info gtt_info; 477 int agp_memtype; 478 const char *s; 479 struct agp_bridge_data *bridge; 480 int aperture_bar = 0; 481 int mmio_bar = 1; 482 int offset; 483 484 DBG_MSG("intelfb_pci_register\n"); 485 486 num_registered++; 487 if (num_registered != 1) { 488 ERR_MSG("Attempted to register %d devices " 489 "(should be only 1).\n", num_registered); 490 return -ENODEV; 491 } 492 493 info = framebuffer_alloc(sizeof(struct intelfb_info), &pdev->dev); 494 if (!info) { 495 ERR_MSG("Could not allocate memory for intelfb_info.\n"); 496 return -ENODEV; 497 } 498 if (fb_alloc_cmap(&info->cmap, 256, 1) < 0) { 499 ERR_MSG("Could not allocate cmap for intelfb_info.\n"); 500 goto err_out_cmap; 501 } 502 503 dinfo = info->par; 504 dinfo->info = info; 505 dinfo->fbops = &intel_fb_ops; 506 dinfo->pdev = pdev; 507 508 /* Reserve pixmap space. */ 509 info->pixmap.addr = kzalloc(64 * 1024, GFP_KERNEL); 510 if (info->pixmap.addr == NULL) { 511 ERR_MSG("Cannot reserve pixmap memory.\n"); 512 goto err_out_pixmap; 513 } 514 515 /* set early this option because it could be changed by tv encoder 516 driver */ 517 dinfo->fixed_mode = fixed; 518 519 /* Enable device. */ 520 if ((err = pci_enable_device(pdev))) { 521 ERR_MSG("Cannot enable device.\n"); 522 cleanup(dinfo); 523 return -ENODEV; 524 } 525 526 /* Set base addresses. */ 527 if ((ent->device == PCI_DEVICE_ID_INTEL_915G) || 528 (ent->device == PCI_DEVICE_ID_INTEL_915GM) || 529 (ent->device == PCI_DEVICE_ID_INTEL_945G) || 530 (ent->device == PCI_DEVICE_ID_INTEL_945GM) || 531 (ent->device == PCI_DEVICE_ID_INTEL_945GME) || 532 (ent->device == PCI_DEVICE_ID_INTEL_965G) || 533 (ent->device == PCI_DEVICE_ID_INTEL_965GM)) { 534 535 aperture_bar = 2; 536 mmio_bar = 0; 537 } 538 dinfo->aperture.physical = pci_resource_start(pdev, aperture_bar); 539 dinfo->aperture.size = pci_resource_len(pdev, aperture_bar); 540 dinfo->mmio_base_phys = pci_resource_start(pdev, mmio_bar); 541 DBG_MSG("fb aperture: 0x%llx/0x%llx, MMIO region: 0x%llx/0x%llx\n", 542 (unsigned long long)pci_resource_start(pdev, aperture_bar), 543 (unsigned long long)pci_resource_len(pdev, aperture_bar), 544 (unsigned long long)pci_resource_start(pdev, mmio_bar), 545 (unsigned long long)pci_resource_len(pdev, mmio_bar)); 546 547 /* Reserve the fb and MMIO regions */ 548 if (!request_mem_region(dinfo->aperture.physical, dinfo->aperture.size, 549 INTELFB_MODULE_NAME)) { 550 ERR_MSG("Cannot reserve FB region.\n"); 551 cleanup(dinfo); 552 return -ENODEV; 553 } 554 555 dinfo->flag |= INTELFB_FB_ACQUIRED; 556 557 if (!request_mem_region(dinfo->mmio_base_phys, 558 INTEL_REG_SIZE, 559 INTELFB_MODULE_NAME)) { 560 ERR_MSG("Cannot reserve MMIO region.\n"); 561 cleanup(dinfo); 562 return -ENODEV; 563 } 564 565 dinfo->flag |= INTELFB_MMIO_ACQUIRED; 566 567 /* Get the chipset info. */ 568 dinfo->pci_chipset = pdev->device; 569 570 if (intelfbhw_get_chipset(pdev, dinfo)) { 571 cleanup(dinfo); 572 return -ENODEV; 573 } 574 575 if (intelfbhw_get_memory(pdev, &aperture_size,&stolen_size)) { 576 cleanup(dinfo); 577 return -ENODEV; 578 } 579 580 INF_MSG("%02x:%02x.%d: %s, aperture size %dMB, " 581 "stolen memory %dkB\n", 582 pdev->bus->number, PCI_SLOT(pdev->devfn), 583 PCI_FUNC(pdev->devfn), dinfo->name, 584 BtoMB(aperture_size), BtoKB(stolen_size)); 585 586 /* Set these from the options. */ 587 dinfo->accel = accel; 588 dinfo->hwcursor = hwcursor; 589 590 if (NOACCEL_CHIPSET(dinfo) && dinfo->accel == 1) { 591 INF_MSG("Acceleration is not supported for the %s chipset.\n", 592 dinfo->name); 593 dinfo->accel = 0; 594 } 595 596 /* Framebuffer parameters - Use all the stolen memory if >= vram */ 597 if (ROUND_UP_TO_PAGE(stolen_size) >= MB(vram)) { 598 dinfo->fb.size = ROUND_UP_TO_PAGE(stolen_size); 599 dinfo->fbmem_gart = 0; 600 } else { 601 dinfo->fb.size = MB(vram); 602 dinfo->fbmem_gart = 1; 603 } 604 605 /* Allocate space for the ring buffer and HW cursor if enabled. */ 606 if (dinfo->accel) { 607 dinfo->ring.size = RINGBUFFER_SIZE; 608 dinfo->ring_tail_mask = dinfo->ring.size - 1; 609 } 610 if (dinfo->hwcursor) 611 dinfo->cursor.size = HW_CURSOR_SIZE; 612 613 /* Use agpgart to manage the GATT */ 614 if (!(bridge = agp_backend_acquire(pdev))) { 615 ERR_MSG("cannot acquire agp\n"); 616 cleanup(dinfo); 617 return -ENODEV; 618 } 619 620 /* get the current gatt info */ 621 if (agp_copy_info(bridge, >t_info)) { 622 ERR_MSG("cannot get agp info\n"); 623 agp_backend_release(bridge); 624 cleanup(dinfo); 625 return -ENODEV; 626 } 627 628 if (MB(voffset) < stolen_size) 629 offset = (stolen_size >> 12); 630 else 631 offset = ROUND_UP_TO_PAGE(MB(voffset))/GTT_PAGE_SIZE; 632 633 /* set the mem offsets - set them after the already used pages */ 634 if (dinfo->accel) 635 dinfo->ring.offset = offset + gtt_info.current_memory; 636 if (dinfo->hwcursor) 637 dinfo->cursor.offset = offset + 638 + gtt_info.current_memory + (dinfo->ring.size >> 12); 639 if (dinfo->fbmem_gart) 640 dinfo->fb.offset = offset + 641 + gtt_info.current_memory + (dinfo->ring.size >> 12) 642 + (dinfo->cursor.size >> 12); 643 644 /* Allocate memories (which aren't stolen) */ 645 /* Map the fb and MMIO regions */ 646 /* ioremap only up to the end of used aperture */ 647 dinfo->aperture.virtual = (u8 __iomem *)ioremap_wc 648 (dinfo->aperture.physical, ((offset + dinfo->fb.offset) << 12) 649 + dinfo->fb.size); 650 if (!dinfo->aperture.virtual) { 651 ERR_MSG("Cannot remap FB region.\n"); 652 agp_backend_release(bridge); 653 cleanup(dinfo); 654 return -ENODEV; 655 } 656 657 dinfo->mmio_base = 658 (u8 __iomem *)ioremap_nocache(dinfo->mmio_base_phys, 659 INTEL_REG_SIZE); 660 if (!dinfo->mmio_base) { 661 ERR_MSG("Cannot remap MMIO region.\n"); 662 agp_backend_release(bridge); 663 cleanup(dinfo); 664 return -ENODEV; 665 } 666 667 if (dinfo->accel) { 668 if (!(dinfo->gtt_ring_mem = 669 agp_allocate_memory(bridge, dinfo->ring.size >> 12, 670 AGP_NORMAL_MEMORY))) { 671 ERR_MSG("cannot allocate ring buffer memory\n"); 672 agp_backend_release(bridge); 673 cleanup(dinfo); 674 return -ENOMEM; 675 } 676 if (agp_bind_memory(dinfo->gtt_ring_mem, 677 dinfo->ring.offset)) { 678 ERR_MSG("cannot bind ring buffer memory\n"); 679 agp_backend_release(bridge); 680 cleanup(dinfo); 681 return -EBUSY; 682 } 683 dinfo->ring.physical = dinfo->aperture.physical 684 + (dinfo->ring.offset << 12); 685 dinfo->ring.virtual = dinfo->aperture.virtual 686 + (dinfo->ring.offset << 12); 687 dinfo->ring_head = 0; 688 } 689 if (dinfo->hwcursor) { 690 agp_memtype = dinfo->mobile ? AGP_PHYSICAL_MEMORY 691 : AGP_NORMAL_MEMORY; 692 if (!(dinfo->gtt_cursor_mem = 693 agp_allocate_memory(bridge, dinfo->cursor.size >> 12, 694 agp_memtype))) { 695 ERR_MSG("cannot allocate cursor memory\n"); 696 agp_backend_release(bridge); 697 cleanup(dinfo); 698 return -ENOMEM; 699 } 700 if (agp_bind_memory(dinfo->gtt_cursor_mem, 701 dinfo->cursor.offset)) { 702 ERR_MSG("cannot bind cursor memory\n"); 703 agp_backend_release(bridge); 704 cleanup(dinfo); 705 return -EBUSY; 706 } 707 if (dinfo->mobile) 708 dinfo->cursor.physical 709 = dinfo->gtt_cursor_mem->physical; 710 else 711 dinfo->cursor.physical = dinfo->aperture.physical 712 + (dinfo->cursor.offset << 12); 713 dinfo->cursor.virtual = dinfo->aperture.virtual 714 + (dinfo->cursor.offset << 12); 715 } 716 if (dinfo->fbmem_gart) { 717 if (!(dinfo->gtt_fb_mem = 718 agp_allocate_memory(bridge, dinfo->fb.size >> 12, 719 AGP_NORMAL_MEMORY))) { 720 WRN_MSG("cannot allocate framebuffer memory - use " 721 "the stolen one\n"); 722 dinfo->fbmem_gart = 0; 723 } 724 if (agp_bind_memory(dinfo->gtt_fb_mem, 725 dinfo->fb.offset)) { 726 WRN_MSG("cannot bind framebuffer memory - use " 727 "the stolen one\n"); 728 dinfo->fbmem_gart = 0; 729 } 730 } 731 732 /* update framebuffer memory parameters */ 733 if (!dinfo->fbmem_gart) 734 dinfo->fb.offset = 0; /* starts at offset 0 */ 735 dinfo->fb.physical = dinfo->aperture.physical 736 + (dinfo->fb.offset << 12); 737 dinfo->fb.virtual = dinfo->aperture.virtual + (dinfo->fb.offset << 12); 738 dinfo->fb_start = dinfo->fb.offset << 12; 739 740 /* release agpgart */ 741 agp_backend_release(bridge); 742 743 if (mtrr) 744 dinfo->wc_cookie = arch_phys_wc_add(dinfo->aperture.physical, 745 dinfo->aperture.size); 746 747 DBG_MSG("fb: 0x%x(+ 0x%x)/0x%x (0x%p)\n", 748 dinfo->fb.physical, dinfo->fb.offset, dinfo->fb.size, 749 dinfo->fb.virtual); 750 DBG_MSG("MMIO: 0x%x/0x%x (0x%p)\n", 751 dinfo->mmio_base_phys, INTEL_REG_SIZE, 752 dinfo->mmio_base); 753 DBG_MSG("ring buffer: 0x%x/0x%x (0x%p)\n", 754 dinfo->ring.physical, dinfo->ring.size, 755 dinfo->ring.virtual); 756 DBG_MSG("HW cursor: 0x%x/0x%x (0x%p) (offset 0x%x) (phys 0x%x)\n", 757 dinfo->cursor.physical, dinfo->cursor.size, 758 dinfo->cursor.virtual, dinfo->cursor.offset, 759 dinfo->cursor.physical); 760 761 DBG_MSG("options: vram = %d, accel = %d, hwcursor = %d, fixed = %d, " 762 "noinit = %d\n", vram, accel, hwcursor, fixed, noinit); 763 DBG_MSG("options: mode = \"%s\"\n", mode ? mode : ""); 764 765 if (probeonly) 766 bailout(dinfo); 767 768 /* 769 * Check if the LVDS port or any DVO ports are enabled. If so, 770 * don't allow mode switching 771 */ 772 dvo = intelfbhw_check_non_crt(dinfo); 773 if (dvo) { 774 dinfo->fixed_mode = 1; 775 WRN_MSG("Non-CRT device is enabled ( "); 776 i = 0; 777 while (dvo) { 778 if (dvo & 1) { 779 s = intelfbhw_dvo_to_string(1 << i); 780 if (s) 781 printk("%s ", s); 782 } 783 dvo >>= 1; 784 ++i; 785 } 786 printk("). Disabling mode switching.\n"); 787 } 788 789 if (bailearly == 1) 790 bailout(dinfo); 791 792 if (FIXED_MODE(dinfo) && 793 screen_info.orig_video_isVGA != VIDEO_TYPE_VLFB) { 794 ERR_MSG("Video mode must be programmed at boot time.\n"); 795 cleanup(dinfo); 796 return -ENODEV; 797 } 798 799 if (bailearly == 2) 800 bailout(dinfo); 801 802 /* Initialise dinfo and related data. */ 803 /* If an initial mode was programmed at boot time, get its details. */ 804 if (screen_info.orig_video_isVGA == VIDEO_TYPE_VLFB) 805 get_initial_mode(dinfo); 806 807 if (bailearly == 3) 808 bailout(dinfo); 809 810 if (FIXED_MODE(dinfo)) /* remap fb address */ 811 update_dinfo(dinfo, &dinfo->initial_var); 812 813 if (bailearly == 4) 814 bailout(dinfo); 815 816 817 if (intelfb_set_fbinfo(dinfo)) { 818 cleanup(dinfo); 819 return -ENODEV; 820 } 821 822 if (bailearly == 5) 823 bailout(dinfo); 824 825 #ifdef CONFIG_FB_INTEL_I2C 826 /* register I2C bus */ 827 intelfb_create_i2c_busses(dinfo); 828 #endif 829 830 if (bailearly == 6) 831 bailout(dinfo); 832 833 pci_set_drvdata(pdev, dinfo); 834 835 /* Save the initial register state. */ 836 i = intelfbhw_read_hw_state(dinfo, &dinfo->save_state, 837 bailearly > 6 ? bailearly - 6 : 0); 838 if (i != 0) { 839 DBG_MSG("intelfbhw_read_hw_state returned %d\n", i); 840 bailout(dinfo); 841 } 842 843 intelfbhw_print_hw_state(dinfo, &dinfo->save_state); 844 845 if (bailearly == 18) 846 bailout(dinfo); 847 848 /* read active pipe */ 849 dinfo->pipe = intelfbhw_active_pipe(&dinfo->save_state); 850 851 /* Cursor initialisation */ 852 if (dinfo->hwcursor) { 853 intelfbhw_cursor_init(dinfo); 854 intelfbhw_cursor_reset(dinfo); 855 } 856 857 if (bailearly == 19) 858 bailout(dinfo); 859 860 /* 2d acceleration init */ 861 if (dinfo->accel) 862 intelfbhw_2d_start(dinfo); 863 864 if (bailearly == 20) 865 bailout(dinfo); 866 867 if (noregister) 868 bailout(dinfo); 869 870 if (register_framebuffer(dinfo->info) < 0) { 871 ERR_MSG("Cannot register framebuffer.\n"); 872 cleanup(dinfo); 873 return -ENODEV; 874 } 875 876 dinfo->registered = 1; 877 dinfo->open = 0; 878 879 init_waitqueue_head(&dinfo->vsync.wait); 880 spin_lock_init(&dinfo->int_lock); 881 dinfo->irq_flags = 0; 882 dinfo->vsync.pan_display = 0; 883 dinfo->vsync.pan_offset = 0; 884 885 return 0; 886 887 err_out_pixmap: 888 fb_dealloc_cmap(&info->cmap); 889 err_out_cmap: 890 framebuffer_release(info); 891 return -ENODEV; 892 } 893 894 static void intelfb_pci_unregister(struct pci_dev *pdev) 895 { 896 struct intelfb_info *dinfo = pci_get_drvdata(pdev); 897 898 DBG_MSG("intelfb_pci_unregister\n"); 899 900 if (!dinfo) 901 return; 902 903 cleanup(dinfo); 904 } 905 906 /*************************************************************** 907 * helper functions * 908 ***************************************************************/ 909 910 int __inline__ intelfb_var_to_depth(const struct fb_var_screeninfo *var) 911 { 912 DBG_MSG("intelfb_var_to_depth: bpp: %d, green.length is %d\n", 913 var->bits_per_pixel, var->green.length); 914 915 switch (var->bits_per_pixel) { 916 case 16: 917 return (var->green.length == 6) ? 16 : 15; 918 case 32: 919 return 24; 920 default: 921 return var->bits_per_pixel; 922 } 923 } 924 925 926 static __inline__ int var_to_refresh(const struct fb_var_screeninfo *var) 927 { 928 int xtot = var->xres + var->left_margin + var->right_margin + 929 var->hsync_len; 930 int ytot = var->yres + var->upper_margin + var->lower_margin + 931 var->vsync_len; 932 933 return (1000000000 / var->pixclock * 1000 + 500) / xtot / ytot; 934 } 935 936 /*************************************************************** 937 * Various intialisation functions * 938 ***************************************************************/ 939 940 static void get_initial_mode(struct intelfb_info *dinfo) 941 { 942 struct fb_var_screeninfo *var; 943 int xtot, ytot; 944 945 DBG_MSG("get_initial_mode\n"); 946 947 dinfo->initial_vga = 1; 948 dinfo->initial_fb_base = screen_info.lfb_base; 949 dinfo->initial_video_ram = screen_info.lfb_size * KB(64); 950 dinfo->initial_pitch = screen_info.lfb_linelength; 951 952 var = &dinfo->initial_var; 953 memset(var, 0, sizeof(*var)); 954 var->xres = screen_info.lfb_width; 955 var->yres = screen_info.lfb_height; 956 var->bits_per_pixel = screen_info.lfb_depth; 957 switch (screen_info.lfb_depth) { 958 case 15: 959 var->bits_per_pixel = 16; 960 break; 961 case 24: 962 var->bits_per_pixel = 32; 963 break; 964 } 965 966 DBG_MSG("Initial info: FB is 0x%x/0x%x (%d kByte)\n", 967 dinfo->initial_fb_base, dinfo->initial_video_ram, 968 BtoKB(dinfo->initial_video_ram)); 969 970 DBG_MSG("Initial info: mode is %dx%d-%d (%d)\n", 971 var->xres, var->yres, var->bits_per_pixel, 972 dinfo->initial_pitch); 973 974 /* Dummy timing values (assume 60Hz) */ 975 var->left_margin = (var->xres / 8) & 0xf8; 976 var->right_margin = 32; 977 var->upper_margin = 16; 978 var->lower_margin = 4; 979 var->hsync_len = (var->xres / 8) & 0xf8; 980 var->vsync_len = 4; 981 982 xtot = var->xres + var->left_margin + 983 var->right_margin + var->hsync_len; 984 ytot = var->yres + var->upper_margin + 985 var->lower_margin + var->vsync_len; 986 var->pixclock = 10000000 / xtot * 1000 / ytot * 100 / 60; 987 988 var->height = -1; 989 var->width = -1; 990 991 if (var->bits_per_pixel > 8) { 992 var->red.offset = screen_info.red_pos; 993 var->red.length = screen_info.red_size; 994 var->green.offset = screen_info.green_pos; 995 var->green.length = screen_info.green_size; 996 var->blue.offset = screen_info.blue_pos; 997 var->blue.length = screen_info.blue_size; 998 var->transp.offset = screen_info.rsvd_pos; 999 var->transp.length = screen_info.rsvd_size; 1000 } else { 1001 var->red.length = 8; 1002 var->green.length = 8; 1003 var->blue.length = 8; 1004 } 1005 } 1006 1007 static int intelfb_init_var(struct intelfb_info *dinfo) 1008 { 1009 struct fb_var_screeninfo *var; 1010 int msrc = 0; 1011 1012 DBG_MSG("intelfb_init_var\n"); 1013 1014 var = &dinfo->info->var; 1015 if (FIXED_MODE(dinfo)) { 1016 memcpy(var, &dinfo->initial_var, 1017 sizeof(struct fb_var_screeninfo)); 1018 msrc = 5; 1019 } else { 1020 const u8 *edid_s = fb_firmware_edid(&dinfo->pdev->dev); 1021 u8 *edid_d = NULL; 1022 1023 if (edid_s) { 1024 edid_d = kmemdup(edid_s, EDID_LENGTH, GFP_KERNEL); 1025 1026 if (edid_d) { 1027 fb_edid_to_monspecs(edid_d, 1028 &dinfo->info->monspecs); 1029 kfree(edid_d); 1030 } 1031 } 1032 1033 if (mode) { 1034 printk("intelfb: Looking for mode in private " 1035 "database\n"); 1036 msrc = fb_find_mode(var, dinfo->info, mode, 1037 dinfo->info->monspecs.modedb, 1038 dinfo->info->monspecs.modedb_len, 1039 NULL, 0); 1040 1041 if (msrc && msrc > 1) { 1042 printk("intelfb: No mode in private database, " 1043 "intelfb: looking for mode in global " 1044 "database "); 1045 msrc = fb_find_mode(var, dinfo->info, mode, 1046 NULL, 0, NULL, 0); 1047 1048 if (msrc) 1049 msrc |= 8; 1050 } 1051 1052 } 1053 1054 if (!msrc) 1055 msrc = fb_find_mode(var, dinfo->info, PREFERRED_MODE, 1056 NULL, 0, NULL, 0); 1057 } 1058 1059 if (!msrc) { 1060 ERR_MSG("Cannot find a suitable video mode.\n"); 1061 return 1; 1062 } 1063 1064 INF_MSG("Initial video mode is %dx%d-%d@%d.\n", var->xres, var->yres, 1065 var->bits_per_pixel, var_to_refresh(var)); 1066 1067 DBG_MSG("Initial video mode is from %d.\n", msrc); 1068 1069 #if ALLOCATE_FOR_PANNING 1070 /* Allow use of half of the video ram for panning */ 1071 var->xres_virtual = var->xres; 1072 var->yres_virtual = 1073 dinfo->fb.size / 2 / (var->bits_per_pixel * var->xres); 1074 if (var->yres_virtual < var->yres) 1075 var->yres_virtual = var->yres; 1076 #else 1077 var->yres_virtual = var->yres; 1078 #endif 1079 1080 if (dinfo->accel) 1081 var->accel_flags |= FB_ACCELF_TEXT; 1082 else 1083 var->accel_flags &= ~FB_ACCELF_TEXT; 1084 1085 return 0; 1086 } 1087 1088 static int intelfb_set_fbinfo(struct intelfb_info *dinfo) 1089 { 1090 struct fb_info *info = dinfo->info; 1091 1092 DBG_MSG("intelfb_set_fbinfo\n"); 1093 1094 info->flags = FBINFO_FLAG_DEFAULT; 1095 info->fbops = &intel_fb_ops; 1096 info->pseudo_palette = dinfo->pseudo_palette; 1097 1098 info->pixmap.size = 64*1024; 1099 info->pixmap.buf_align = 8; 1100 info->pixmap.access_align = 32; 1101 info->pixmap.flags = FB_PIXMAP_SYSTEM; 1102 1103 if (intelfb_init_var(dinfo)) 1104 return 1; 1105 1106 info->pixmap.scan_align = 1; 1107 strcpy(info->fix.id, dinfo->name); 1108 info->fix.smem_start = dinfo->fb.physical; 1109 info->fix.smem_len = dinfo->fb.size; 1110 info->fix.type = FB_TYPE_PACKED_PIXELS; 1111 info->fix.type_aux = 0; 1112 info->fix.xpanstep = 8; 1113 info->fix.ypanstep = 1; 1114 info->fix.ywrapstep = 0; 1115 info->fix.mmio_start = dinfo->mmio_base_phys; 1116 info->fix.mmio_len = INTEL_REG_SIZE; 1117 info->fix.accel = FB_ACCEL_I830; 1118 update_dinfo(dinfo, &info->var); 1119 1120 return 0; 1121 } 1122 1123 /* Update dinfo to match the active video mode. */ 1124 static void update_dinfo(struct intelfb_info *dinfo, 1125 struct fb_var_screeninfo *var) 1126 { 1127 DBG_MSG("update_dinfo\n"); 1128 1129 dinfo->bpp = var->bits_per_pixel; 1130 dinfo->depth = intelfb_var_to_depth(var); 1131 dinfo->xres = var->xres; 1132 dinfo->yres = var->xres; 1133 dinfo->pixclock = var->pixclock; 1134 1135 dinfo->info->fix.visual = dinfo->visual; 1136 dinfo->info->fix.line_length = dinfo->pitch; 1137 1138 switch (dinfo->bpp) { 1139 case 8: 1140 dinfo->visual = FB_VISUAL_PSEUDOCOLOR; 1141 dinfo->pitch = var->xres_virtual; 1142 break; 1143 case 16: 1144 dinfo->visual = FB_VISUAL_TRUECOLOR; 1145 dinfo->pitch = var->xres_virtual * 2; 1146 break; 1147 case 32: 1148 dinfo->visual = FB_VISUAL_TRUECOLOR; 1149 dinfo->pitch = var->xres_virtual * 4; 1150 break; 1151 } 1152 1153 /* Make sure the line length is a aligned correctly. */ 1154 if (IS_I9XX(dinfo)) 1155 dinfo->pitch = ROUND_UP_TO(dinfo->pitch, STRIDE_ALIGNMENT_I9XX); 1156 else 1157 dinfo->pitch = ROUND_UP_TO(dinfo->pitch, STRIDE_ALIGNMENT); 1158 1159 if (FIXED_MODE(dinfo)) 1160 dinfo->pitch = dinfo->initial_pitch; 1161 1162 dinfo->info->screen_base = (char __iomem *)dinfo->fb.virtual; 1163 dinfo->info->fix.line_length = dinfo->pitch; 1164 dinfo->info->fix.visual = dinfo->visual; 1165 } 1166 1167 /* fbops functions */ 1168 1169 /*************************************************************** 1170 * fbdev interface * 1171 ***************************************************************/ 1172 1173 static int intelfb_open(struct fb_info *info, int user) 1174 { 1175 struct intelfb_info *dinfo = GET_DINFO(info); 1176 1177 if (user) 1178 dinfo->open++; 1179 1180 return 0; 1181 } 1182 1183 static int intelfb_release(struct fb_info *info, int user) 1184 { 1185 struct intelfb_info *dinfo = GET_DINFO(info); 1186 1187 if (user) { 1188 dinfo->open--; 1189 msleep(1); 1190 if (!dinfo->open) 1191 intelfbhw_disable_irq(dinfo); 1192 } 1193 1194 return 0; 1195 } 1196 1197 static int intelfb_check_var(struct fb_var_screeninfo *var, 1198 struct fb_info *info) 1199 { 1200 int change_var = 0; 1201 struct fb_var_screeninfo v; 1202 struct intelfb_info *dinfo; 1203 static int first = 1; 1204 int i; 1205 /* Good pitches to allow tiling. Don't care about pitches < 1024. */ 1206 static const int pitches[] = { 1207 128 * 8, 1208 128 * 16, 1209 128 * 32, 1210 128 * 64, 1211 0 1212 }; 1213 1214 DBG_MSG("intelfb_check_var: accel_flags is %d\n", var->accel_flags); 1215 1216 dinfo = GET_DINFO(info); 1217 1218 /* update the pitch */ 1219 if (intelfbhw_validate_mode(dinfo, var) != 0) 1220 return -EINVAL; 1221 1222 v = *var; 1223 1224 for (i = 0; pitches[i] != 0; i++) { 1225 if (pitches[i] >= v.xres_virtual) { 1226 v.xres_virtual = pitches[i]; 1227 break; 1228 } 1229 } 1230 1231 /* Check for a supported bpp. */ 1232 if (v.bits_per_pixel <= 8) 1233 v.bits_per_pixel = 8; 1234 else if (v.bits_per_pixel <= 16) { 1235 if (v.bits_per_pixel == 16) 1236 v.green.length = 6; 1237 v.bits_per_pixel = 16; 1238 } else if (v.bits_per_pixel <= 32) 1239 v.bits_per_pixel = 32; 1240 else 1241 return -EINVAL; 1242 1243 change_var = ((info->var.xres != var->xres) || 1244 (info->var.yres != var->yres) || 1245 (info->var.xres_virtual != var->xres_virtual) || 1246 (info->var.yres_virtual != var->yres_virtual) || 1247 (info->var.bits_per_pixel != var->bits_per_pixel) || 1248 memcmp(&info->var.red, &var->red, sizeof(var->red)) || 1249 memcmp(&info->var.green, &var->green, 1250 sizeof(var->green)) || 1251 memcmp(&info->var.blue, &var->blue, sizeof(var->blue))); 1252 1253 if (FIXED_MODE(dinfo) && 1254 (change_var || 1255 var->yres_virtual > dinfo->initial_var.yres_virtual || 1256 var->yres_virtual < dinfo->initial_var.yres || 1257 var->xoffset || var->nonstd)) { 1258 if (first) { 1259 ERR_MSG("Changing the video mode is not supported.\n"); 1260 first = 0; 1261 } 1262 return -EINVAL; 1263 } 1264 1265 switch (intelfb_var_to_depth(&v)) { 1266 case 8: 1267 v.red.offset = v.green.offset = v.blue.offset = 0; 1268 v.red.length = v.green.length = v.blue.length = 8; 1269 v.transp.offset = v.transp.length = 0; 1270 break; 1271 case 15: 1272 v.red.offset = 10; 1273 v.green.offset = 5; 1274 v.blue.offset = 0; 1275 v.red.length = v.green.length = v.blue.length = 5; 1276 v.transp.offset = v.transp.length = 0; 1277 break; 1278 case 16: 1279 v.red.offset = 11; 1280 v.green.offset = 5; 1281 v.blue.offset = 0; 1282 v.red.length = 5; 1283 v.green.length = 6; 1284 v.blue.length = 5; 1285 v.transp.offset = v.transp.length = 0; 1286 break; 1287 case 24: 1288 v.red.offset = 16; 1289 v.green.offset = 8; 1290 v.blue.offset = 0; 1291 v.red.length = v.green.length = v.blue.length = 8; 1292 v.transp.offset = v.transp.length = 0; 1293 break; 1294 case 32: 1295 v.red.offset = 16; 1296 v.green.offset = 8; 1297 v.blue.offset = 0; 1298 v.red.length = v.green.length = v.blue.length = 8; 1299 v.transp.offset = 24; 1300 v.transp.length = 8; 1301 break; 1302 } 1303 1304 if (v.xoffset < 0) 1305 v.xoffset = 0; 1306 if (v.yoffset < 0) 1307 v.yoffset = 0; 1308 1309 if (v.xoffset > v.xres_virtual - v.xres) 1310 v.xoffset = v.xres_virtual - v.xres; 1311 if (v.yoffset > v.yres_virtual - v.yres) 1312 v.yoffset = v.yres_virtual - v.yres; 1313 1314 v.red.msb_right = v.green.msb_right = v.blue.msb_right = 1315 v.transp.msb_right = 0; 1316 1317 *var = v; 1318 1319 return 0; 1320 } 1321 1322 static int intelfb_set_par(struct fb_info *info) 1323 { 1324 struct intelfb_hwstate *hw; 1325 struct intelfb_info *dinfo = GET_DINFO(info); 1326 1327 if (FIXED_MODE(dinfo)) { 1328 ERR_MSG("Changing the video mode is not supported.\n"); 1329 return -EINVAL; 1330 } 1331 1332 hw = kmalloc(sizeof(*hw), GFP_ATOMIC); 1333 if (!hw) 1334 return -ENOMEM; 1335 1336 DBG_MSG("intelfb_set_par (%dx%d-%d)\n", info->var.xres, 1337 info->var.yres, info->var.bits_per_pixel); 1338 1339 /* 1340 * Disable VCO prior to timing register change. 1341 */ 1342 OUTREG(DPLL_A, INREG(DPLL_A) & ~DPLL_VCO_ENABLE); 1343 1344 intelfb_blank(FB_BLANK_POWERDOWN, info); 1345 1346 if (ACCEL(dinfo, info)) 1347 intelfbhw_2d_stop(dinfo); 1348 1349 memcpy(hw, &dinfo->save_state, sizeof(*hw)); 1350 if (intelfbhw_mode_to_hw(dinfo, hw, &info->var)) 1351 goto invalid_mode; 1352 if (intelfbhw_program_mode(dinfo, hw, 0)) 1353 goto invalid_mode; 1354 1355 #if REGDUMP > 0 1356 intelfbhw_read_hw_state(dinfo, hw, 0); 1357 intelfbhw_print_hw_state(dinfo, hw); 1358 #endif 1359 1360 update_dinfo(dinfo, &info->var); 1361 1362 if (ACCEL(dinfo, info)) 1363 intelfbhw_2d_start(dinfo); 1364 1365 intelfb_pan_display(&info->var, info); 1366 1367 intelfb_blank(FB_BLANK_UNBLANK, info); 1368 1369 if (ACCEL(dinfo, info)) { 1370 info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN | 1371 FBINFO_HWACCEL_COPYAREA | FBINFO_HWACCEL_FILLRECT | 1372 FBINFO_HWACCEL_IMAGEBLIT; 1373 } else 1374 info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN; 1375 1376 kfree(hw); 1377 return 0; 1378 invalid_mode: 1379 kfree(hw); 1380 return -EINVAL; 1381 } 1382 1383 static int intelfb_setcolreg(unsigned regno, unsigned red, unsigned green, 1384 unsigned blue, unsigned transp, 1385 struct fb_info *info) 1386 { 1387 struct intelfb_info *dinfo = GET_DINFO(info); 1388 1389 #if VERBOSE > 0 1390 DBG_MSG("intelfb_setcolreg: regno %d, depth %d\n", regno, dinfo->depth); 1391 #endif 1392 1393 if (regno > 255) 1394 return 1; 1395 1396 if (dinfo->depth == 8) { 1397 red >>= 8; 1398 green >>= 8; 1399 blue >>= 8; 1400 1401 intelfbhw_setcolreg(dinfo, regno, red, green, blue, 1402 transp); 1403 } 1404 1405 if (regno < 16) { 1406 switch (dinfo->depth) { 1407 case 15: 1408 dinfo->pseudo_palette[regno] = ((red & 0xf800) >> 1) | 1409 ((green & 0xf800) >> 6) | 1410 ((blue & 0xf800) >> 11); 1411 break; 1412 case 16: 1413 dinfo->pseudo_palette[regno] = (red & 0xf800) | 1414 ((green & 0xfc00) >> 5) | 1415 ((blue & 0xf800) >> 11); 1416 break; 1417 case 24: 1418 dinfo->pseudo_palette[regno] = ((red & 0xff00) << 8) | 1419 (green & 0xff00) | 1420 ((blue & 0xff00) >> 8); 1421 break; 1422 } 1423 } 1424 1425 return 0; 1426 } 1427 1428 static int intelfb_blank(int blank, struct fb_info *info) 1429 { 1430 intelfbhw_do_blank(blank, info); 1431 return 0; 1432 } 1433 1434 static int intelfb_pan_display(struct fb_var_screeninfo *var, 1435 struct fb_info *info) 1436 { 1437 intelfbhw_pan_display(var, info); 1438 return 0; 1439 } 1440 1441 /* When/if we have our own ioctls. */ 1442 static int intelfb_ioctl(struct fb_info *info, unsigned int cmd, 1443 unsigned long arg) 1444 { 1445 int retval = 0; 1446 struct intelfb_info *dinfo = GET_DINFO(info); 1447 u32 pipe = 0; 1448 1449 switch (cmd) { 1450 case FBIO_WAITFORVSYNC: 1451 if (get_user(pipe, (__u32 __user *)arg)) 1452 return -EFAULT; 1453 1454 retval = intelfbhw_wait_for_vsync(dinfo, pipe); 1455 break; 1456 default: 1457 break; 1458 } 1459 1460 return retval; 1461 } 1462 1463 static void intelfb_fillrect (struct fb_info *info, 1464 const struct fb_fillrect *rect) 1465 { 1466 struct intelfb_info *dinfo = GET_DINFO(info); 1467 u32 rop, color; 1468 1469 #if VERBOSE > 0 1470 DBG_MSG("intelfb_fillrect\n"); 1471 #endif 1472 1473 if (!ACCEL(dinfo, info) || dinfo->depth == 4) { 1474 cfb_fillrect(info, rect); 1475 return; 1476 } 1477 1478 if (rect->rop == ROP_COPY) 1479 rop = PAT_ROP_GXCOPY; 1480 else /* ROP_XOR */ 1481 rop = PAT_ROP_GXXOR; 1482 1483 if (dinfo->depth != 8) 1484 color = dinfo->pseudo_palette[rect->color]; 1485 else 1486 color = rect->color; 1487 1488 intelfbhw_do_fillrect(dinfo, rect->dx, rect->dy, 1489 rect->width, rect->height, color, 1490 dinfo->pitch, info->var.bits_per_pixel, 1491 rop); 1492 } 1493 1494 static void intelfb_copyarea(struct fb_info *info, 1495 const struct fb_copyarea *region) 1496 { 1497 struct intelfb_info *dinfo = GET_DINFO(info); 1498 1499 #if VERBOSE > 0 1500 DBG_MSG("intelfb_copyarea\n"); 1501 #endif 1502 1503 if (!ACCEL(dinfo, info) || dinfo->depth == 4) { 1504 cfb_copyarea(info, region); 1505 return; 1506 } 1507 1508 intelfbhw_do_bitblt(dinfo, region->sx, region->sy, region->dx, 1509 region->dy, region->width, region->height, 1510 dinfo->pitch, info->var.bits_per_pixel); 1511 } 1512 1513 static void intelfb_imageblit(struct fb_info *info, 1514 const struct fb_image *image) 1515 { 1516 struct intelfb_info *dinfo = GET_DINFO(info); 1517 u32 fgcolor, bgcolor; 1518 1519 #if VERBOSE > 0 1520 DBG_MSG("intelfb_imageblit\n"); 1521 #endif 1522 1523 if (!ACCEL(dinfo, info) || dinfo->depth == 4 1524 || image->depth != 1) { 1525 cfb_imageblit(info, image); 1526 return; 1527 } 1528 1529 if (dinfo->depth != 8) { 1530 fgcolor = dinfo->pseudo_palette[image->fg_color]; 1531 bgcolor = dinfo->pseudo_palette[image->bg_color]; 1532 } else { 1533 fgcolor = image->fg_color; 1534 bgcolor = image->bg_color; 1535 } 1536 1537 if (!intelfbhw_do_drawglyph(dinfo, fgcolor, bgcolor, image->width, 1538 image->height, image->data, 1539 image->dx, image->dy, 1540 dinfo->pitch, info->var.bits_per_pixel)) { 1541 cfb_imageblit(info, image); 1542 return; 1543 } 1544 } 1545 1546 static int intelfb_cursor(struct fb_info *info, struct fb_cursor *cursor) 1547 { 1548 struct intelfb_info *dinfo = GET_DINFO(info); 1549 u32 physical; 1550 #if VERBOSE > 0 1551 DBG_MSG("intelfb_cursor\n"); 1552 #endif 1553 1554 if (!dinfo->hwcursor) 1555 return -ENODEV; 1556 1557 intelfbhw_cursor_hide(dinfo); 1558 1559 /* If XFree killed the cursor - restore it */ 1560 physical = (dinfo->mobile || IS_I9XX(dinfo)) ? dinfo->cursor.physical : 1561 (dinfo->cursor.offset << 12); 1562 1563 if (INREG(CURSOR_A_BASEADDR) != physical) { 1564 u32 fg, bg; 1565 1566 DBG_MSG("the cursor was killed - restore it !!\n"); 1567 DBG_MSG("size %d, %d pos %d, %d\n", 1568 cursor->image.width, cursor->image.height, 1569 cursor->image.dx, cursor->image.dy); 1570 1571 intelfbhw_cursor_init(dinfo); 1572 intelfbhw_cursor_reset(dinfo); 1573 intelfbhw_cursor_setpos(dinfo, cursor->image.dx, 1574 cursor->image.dy); 1575 1576 if (dinfo->depth != 8) { 1577 fg =dinfo->pseudo_palette[cursor->image.fg_color]; 1578 bg =dinfo->pseudo_palette[cursor->image.bg_color]; 1579 } else { 1580 fg = cursor->image.fg_color; 1581 bg = cursor->image.bg_color; 1582 } 1583 intelfbhw_cursor_setcolor(dinfo, bg, fg); 1584 intelfbhw_cursor_load(dinfo, cursor->image.width, 1585 cursor->image.height, 1586 dinfo->cursor_src); 1587 1588 if (cursor->enable) 1589 intelfbhw_cursor_show(dinfo); 1590 return 0; 1591 } 1592 1593 if (cursor->set & FB_CUR_SETPOS) { 1594 u32 dx, dy; 1595 1596 dx = cursor->image.dx - info->var.xoffset; 1597 dy = cursor->image.dy - info->var.yoffset; 1598 1599 intelfbhw_cursor_setpos(dinfo, dx, dy); 1600 } 1601 1602 if (cursor->set & FB_CUR_SETSIZE) { 1603 if (cursor->image.width > 64 || cursor->image.height > 64) 1604 return -ENXIO; 1605 1606 intelfbhw_cursor_reset(dinfo); 1607 } 1608 1609 if (cursor->set & FB_CUR_SETCMAP) { 1610 u32 fg, bg; 1611 1612 if (dinfo->depth != 8) { 1613 fg = dinfo->pseudo_palette[cursor->image.fg_color]; 1614 bg = dinfo->pseudo_palette[cursor->image.bg_color]; 1615 } else { 1616 fg = cursor->image.fg_color; 1617 bg = cursor->image.bg_color; 1618 } 1619 1620 intelfbhw_cursor_setcolor(dinfo, bg, fg); 1621 } 1622 1623 if (cursor->set & (FB_CUR_SETSHAPE | FB_CUR_SETIMAGE)) { 1624 u32 s_pitch = (ROUND_UP_TO(cursor->image.width, 8) / 8); 1625 u32 size = s_pitch * cursor->image.height; 1626 u8 *dat = (u8 *) cursor->image.data; 1627 u8 *msk = (u8 *) cursor->mask; 1628 u8 src[64]; 1629 u32 i; 1630 1631 if (cursor->image.depth != 1) 1632 return -ENXIO; 1633 1634 switch (cursor->rop) { 1635 case ROP_XOR: 1636 for (i = 0; i < size; i++) 1637 src[i] = dat[i] ^ msk[i]; 1638 break; 1639 case ROP_COPY: 1640 default: 1641 for (i = 0; i < size; i++) 1642 src[i] = dat[i] & msk[i]; 1643 break; 1644 } 1645 1646 /* save the bitmap to restore it when XFree will 1647 make the cursor dirty */ 1648 memcpy(dinfo->cursor_src, src, size); 1649 1650 intelfbhw_cursor_load(dinfo, cursor->image.width, 1651 cursor->image.height, src); 1652 } 1653 1654 if (cursor->enable) 1655 intelfbhw_cursor_show(dinfo); 1656 1657 return 0; 1658 } 1659 1660 static int intelfb_sync(struct fb_info *info) 1661 { 1662 struct intelfb_info *dinfo = GET_DINFO(info); 1663 1664 #if VERBOSE > 0 1665 DBG_MSG("intelfb_sync\n"); 1666 #endif 1667 1668 if (dinfo->ring_lockup) 1669 return 0; 1670 1671 intelfbhw_do_sync(dinfo); 1672 return 0; 1673 } 1674 1675