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#ifdef CONFIG_MTRR 128#include <asm/mtrr.h> 129#endif 130 131#include "intelfb.h" 132#include "intelfbhw.h" 133#include "../edid.h" 134 135static void get_initial_mode(struct intelfb_info *dinfo); 136static void update_dinfo(struct intelfb_info *dinfo, 137 struct fb_var_screeninfo *var); 138static int intelfb_open(struct fb_info *info, int user); 139static int intelfb_release(struct fb_info *info, int user); 140static int intelfb_check_var(struct fb_var_screeninfo *var, 141 struct fb_info *info); 142static int intelfb_set_par(struct fb_info *info); 143static int intelfb_setcolreg(unsigned regno, unsigned red, unsigned green, 144 unsigned blue, unsigned transp, 145 struct fb_info *info); 146 147static int intelfb_blank(int blank, struct fb_info *info); 148static int intelfb_pan_display(struct fb_var_screeninfo *var, 149 struct fb_info *info); 150 151static void intelfb_fillrect(struct fb_info *info, 152 const struct fb_fillrect *rect); 153static void intelfb_copyarea(struct fb_info *info, 154 const struct fb_copyarea *region); 155static void intelfb_imageblit(struct fb_info *info, 156 const struct fb_image *image); 157static int intelfb_cursor(struct fb_info *info, 158 struct fb_cursor *cursor); 159 160static int intelfb_sync(struct fb_info *info); 161 162static int intelfb_ioctl(struct fb_info *info, 163 unsigned int cmd, unsigned long arg); 164 165static int intelfb_pci_register(struct pci_dev *pdev, 166 const struct pci_device_id *ent); 167static void intelfb_pci_unregister(struct pci_dev *pdev); 168static int intelfb_set_fbinfo(struct intelfb_info *dinfo); 169 170/* 171 * Limiting the class to PCI_CLASS_DISPLAY_VGA prevents function 1 of the 172 * mobile chipsets from being registered. 173 */ 174#if DETECT_VGA_CLASS_ONLY 175#define INTELFB_CLASS_MASK ~0 << 8 176#else 177#define INTELFB_CLASS_MASK 0 178#endif 179 180static struct pci_device_id intelfb_pci_table[] = { 181 { 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 }, 182 { 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 }, 183 { 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 }, 184 { 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 }, 185 { 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 }, 186 { 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 }, 187 { 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 }, 188 { 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 }, 189 { 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 }, 190 { 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 }, 191 { 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 }, 192 { 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 }, 193 { 0, } 194}; 195 196/* Global data */ 197static int num_registered = 0; 198 199/* fb ops */ 200static struct fb_ops intel_fb_ops = { 201 .owner = THIS_MODULE, 202 .fb_open = intelfb_open, 203 .fb_release = intelfb_release, 204 .fb_check_var = intelfb_check_var, 205 .fb_set_par = intelfb_set_par, 206 .fb_setcolreg = intelfb_setcolreg, 207 .fb_blank = intelfb_blank, 208 .fb_pan_display = intelfb_pan_display, 209 .fb_fillrect = intelfb_fillrect, 210 .fb_copyarea = intelfb_copyarea, 211 .fb_imageblit = intelfb_imageblit, 212 .fb_cursor = intelfb_cursor, 213 .fb_sync = intelfb_sync, 214 .fb_ioctl = intelfb_ioctl 215}; 216 217/* PCI driver module table */ 218static struct pci_driver intelfb_driver = { 219 .name = "intelfb", 220 .id_table = intelfb_pci_table, 221 .probe = intelfb_pci_register, 222 .remove = intelfb_pci_unregister, 223}; 224 225/* Module description/parameters */ 226MODULE_AUTHOR("David Dawes <dawes@tungstengraphics.com>, " 227 "Sylvain Meyer <sylvain.meyer@worldonline.fr>"); 228MODULE_DESCRIPTION("Framebuffer driver for Intel(R) " SUPPORTED_CHIPSETS 229 " chipsets"); 230MODULE_LICENSE("Dual BSD/GPL"); 231MODULE_DEVICE_TABLE(pci, intelfb_pci_table); 232 233static bool accel = 1; 234static int vram = 4; 235static bool hwcursor = 0; 236static bool mtrr = 1; 237static bool fixed = 0; 238static bool noinit = 0; 239static bool noregister = 0; 240static bool probeonly = 0; 241static bool idonly = 0; 242static int bailearly = 0; 243static int voffset = 48; 244static char *mode = NULL; 245 246module_param(accel, bool, S_IRUGO); 247MODULE_PARM_DESC(accel, "Enable hardware acceleration"); 248module_param(vram, int, S_IRUGO); 249MODULE_PARM_DESC(vram, "System RAM to allocate to framebuffer in MiB"); 250module_param(voffset, int, S_IRUGO); 251MODULE_PARM_DESC(voffset, "Offset of framebuffer in MiB"); 252module_param(hwcursor, bool, S_IRUGO); 253MODULE_PARM_DESC(hwcursor, "Enable HW cursor"); 254module_param(mtrr, bool, S_IRUGO); 255MODULE_PARM_DESC(mtrr, "Enable MTRR support"); 256module_param(fixed, bool, S_IRUGO); 257MODULE_PARM_DESC(fixed, "Disable mode switching"); 258module_param(noinit, bool, 0); 259MODULE_PARM_DESC(noinit, "Don't initialise graphics mode when loading"); 260module_param(noregister, bool, 0); 261MODULE_PARM_DESC(noregister, "Don't register, just probe and exit (debug)"); 262module_param(probeonly, bool, 0); 263MODULE_PARM_DESC(probeonly, "Do a minimal probe (debug)"); 264module_param(idonly, bool, 0); 265MODULE_PARM_DESC(idonly, "Just identify without doing anything else (debug)"); 266module_param(bailearly, int, 0); 267MODULE_PARM_DESC(bailearly, "Bail out early, depending on value (debug)"); 268module_param(mode, charp, S_IRUGO); 269MODULE_PARM_DESC(mode, 270 "Initial video mode \"<xres>x<yres>[-<depth>][@<refresh>]\""); 271 272#ifndef MODULE 273#define OPT_EQUAL(opt, name) (!strncmp(opt, name, strlen(name))) 274#define OPT_INTVAL(opt, name) simple_strtoul(opt + strlen(name) + 1, NULL, 0) 275#define OPT_STRVAL(opt, name) (opt + strlen(name)) 276 277static __inline__ char * get_opt_string(const char *this_opt, const char *name) 278{ 279 const char *p; 280 int i; 281 char *ret; 282 283 p = OPT_STRVAL(this_opt, name); 284 i = 0; 285 while (p[i] && p[i] != ' ' && p[i] != ',') 286 i++; 287 ret = kmalloc(i + 1, GFP_KERNEL); 288 if (ret) { 289 strncpy(ret, p, i); 290 ret[i] = '\0'; 291 } 292 return ret; 293} 294 295static __inline__ int get_opt_int(const char *this_opt, const char *name, 296 int *ret) 297{ 298 if (!ret) 299 return 0; 300 301 if (!OPT_EQUAL(this_opt, name)) 302 return 0; 303 304 *ret = OPT_INTVAL(this_opt, name); 305 return 1; 306} 307 308static __inline__ int get_opt_bool(const char *this_opt, const char *name, 309 int *ret) 310{ 311 if (!ret) 312 return 0; 313 314 if (OPT_EQUAL(this_opt, name)) { 315 if (this_opt[strlen(name)] == '=') 316 *ret = simple_strtoul(this_opt + strlen(name) + 1, 317 NULL, 0); 318 else 319 *ret = 1; 320 } else { 321 if (OPT_EQUAL(this_opt, "no") && OPT_EQUAL(this_opt + 2, name)) 322 *ret = 0; 323 else 324 return 0; 325 } 326 return 1; 327} 328 329static int __init intelfb_setup(char *options) 330{ 331 char *this_opt; 332 333 DBG_MSG("intelfb_setup\n"); 334 335 if (!options || !*options) { 336 DBG_MSG("no options\n"); 337 return 0; 338 } else 339 DBG_MSG("options: %s\n", options); 340 341 /* 342 * These are the built-in options analogous to the module parameters 343 * defined above. 344 * 345 * The syntax is: 346 * 347 * video=intelfb:[mode][,<param>=<val>] ... 348 * 349 * e.g., 350 * 351 * video=intelfb:1024x768-16@75,accel=0 352 */ 353 354 while ((this_opt = strsep(&options, ","))) { 355 if (!*this_opt) 356 continue; 357 if (get_opt_bool(this_opt, "accel", &accel)) 358 ; 359 else if (get_opt_int(this_opt, "vram", &vram)) 360 ; 361 else if (get_opt_bool(this_opt, "hwcursor", &hwcursor)) 362 ; 363 else if (get_opt_bool(this_opt, "mtrr", &mtrr)) 364 ; 365 else if (get_opt_bool(this_opt, "fixed", &fixed)) 366 ; 367 else if (get_opt_bool(this_opt, "init", &noinit)) 368 noinit = !noinit; 369 else if (OPT_EQUAL(this_opt, "mode=")) 370 mode = get_opt_string(this_opt, "mode="); 371 else 372 mode = this_opt; 373 } 374 375 return 0; 376} 377 378#endif 379 380static int __init intelfb_init(void) 381{ 382#ifndef MODULE 383 char *option = NULL; 384#endif 385 386 DBG_MSG("intelfb_init\n"); 387 388 INF_MSG("Framebuffer driver for " 389 "Intel(R) " SUPPORTED_CHIPSETS " chipsets\n"); 390 INF_MSG("Version " INTELFB_VERSION "\n"); 391 392 if (idonly) 393 return -ENODEV; 394 395#ifndef MODULE 396 if (fb_get_options("intelfb", &option)) 397 return -ENODEV; 398 intelfb_setup(option); 399#endif 400 401 return pci_register_driver(&intelfb_driver); 402} 403 404static void __exit intelfb_exit(void) 405{ 406 DBG_MSG("intelfb_exit\n"); 407 pci_unregister_driver(&intelfb_driver); 408} 409 410module_init(intelfb_init); 411module_exit(intelfb_exit); 412 413/*************************************************************** 414 * mtrr support functions * 415 ***************************************************************/ 416 417#ifdef CONFIG_MTRR 418static inline void set_mtrr(struct intelfb_info *dinfo) 419{ 420 dinfo->mtrr_reg = mtrr_add(dinfo->aperture.physical, 421 dinfo->aperture.size, MTRR_TYPE_WRCOMB, 1); 422 if (dinfo->mtrr_reg < 0) { 423 ERR_MSG("unable to set MTRR\n"); 424 return; 425 } 426 dinfo->has_mtrr = 1; 427} 428static inline void unset_mtrr(struct intelfb_info *dinfo) 429{ 430 if (dinfo->has_mtrr) 431 mtrr_del(dinfo->mtrr_reg, dinfo->aperture.physical, 432 dinfo->aperture.size); 433} 434#else 435#define set_mtrr(x) WRN_MSG("MTRR is disabled in the kernel\n") 436 437#define unset_mtrr(x) do { } while (0) 438#endif /* CONFIG_MTRR */ 439 440/*************************************************************** 441 * driver init / cleanup * 442 ***************************************************************/ 443 444static void cleanup(struct intelfb_info *dinfo) 445{ 446 DBG_MSG("cleanup\n"); 447 448 if (!dinfo) 449 return; 450 451 intelfbhw_disable_irq(dinfo); 452 453 fb_dealloc_cmap(&dinfo->info->cmap); 454 kfree(dinfo->info->pixmap.addr); 455 456 if (dinfo->registered) 457 unregister_framebuffer(dinfo->info); 458 459 unset_mtrr(dinfo); 460 461 if (dinfo->fbmem_gart && dinfo->gtt_fb_mem) { 462 agp_unbind_memory(dinfo->gtt_fb_mem); 463 agp_free_memory(dinfo->gtt_fb_mem); 464 } 465 if (dinfo->gtt_cursor_mem) { 466 agp_unbind_memory(dinfo->gtt_cursor_mem); 467 agp_free_memory(dinfo->gtt_cursor_mem); 468 } 469 if (dinfo->gtt_ring_mem) { 470 agp_unbind_memory(dinfo->gtt_ring_mem); 471 agp_free_memory(dinfo->gtt_ring_mem); 472 } 473 474#ifdef CONFIG_FB_INTEL_I2C 475 /* un-register I2C bus */ 476 intelfb_delete_i2c_busses(dinfo); 477#endif 478 479 if (dinfo->mmio_base) 480 iounmap((void __iomem *)dinfo->mmio_base); 481 if (dinfo->aperture.virtual) 482 iounmap((void __iomem *)dinfo->aperture.virtual); 483 484 if (dinfo->flag & INTELFB_MMIO_ACQUIRED) 485 release_mem_region(dinfo->mmio_base_phys, INTEL_REG_SIZE); 486 if (dinfo->flag & INTELFB_FB_ACQUIRED) 487 release_mem_region(dinfo->aperture.physical, 488 dinfo->aperture.size); 489 framebuffer_release(dinfo->info); 490} 491 492#define bailout(dinfo) do { \ 493 DBG_MSG("bailout\n"); \ 494 cleanup(dinfo); \ 495 INF_MSG("Not going to register framebuffer, exiting...\n"); \ 496 return -ENODEV; \ 497} while (0) 498 499 500static int intelfb_pci_register(struct pci_dev *pdev, 501 const struct pci_device_id *ent) 502{ 503 struct fb_info *info; 504 struct intelfb_info *dinfo; 505 int i, err, dvo; 506 int aperture_size, stolen_size; 507 struct agp_kern_info gtt_info; 508 int agp_memtype; 509 const char *s; 510 struct agp_bridge_data *bridge; 511 int aperture_bar = 0; 512 int mmio_bar = 1; 513 int offset; 514 515 DBG_MSG("intelfb_pci_register\n"); 516 517 num_registered++; 518 if (num_registered != 1) { 519 ERR_MSG("Attempted to register %d devices " 520 "(should be only 1).\n", num_registered); 521 return -ENODEV; 522 } 523 524 info = framebuffer_alloc(sizeof(struct intelfb_info), &pdev->dev); 525 if (!info) { 526 ERR_MSG("Could not allocate memory for intelfb_info.\n"); 527 return -ENODEV; 528 } 529 if (fb_alloc_cmap(&info->cmap, 256, 1) < 0) { 530 ERR_MSG("Could not allocate cmap for intelfb_info.\n"); 531 goto err_out_cmap; 532 } 533 534 dinfo = info->par; 535 dinfo->info = info; 536 dinfo->fbops = &intel_fb_ops; 537 dinfo->pdev = pdev; 538 539 /* Reserve pixmap space. */ 540 info->pixmap.addr = kzalloc(64 * 1024, GFP_KERNEL); 541 if (info->pixmap.addr == NULL) { 542 ERR_MSG("Cannot reserve pixmap memory.\n"); 543 goto err_out_pixmap; 544 } 545 546 /* set early this option because it could be changed by tv encoder 547 driver */ 548 dinfo->fixed_mode = fixed; 549 550 /* Enable device. */ 551 if ((err = pci_enable_device(pdev))) { 552 ERR_MSG("Cannot enable device.\n"); 553 cleanup(dinfo); 554 return -ENODEV; 555 } 556 557 /* Set base addresses. */ 558 if ((ent->device == PCI_DEVICE_ID_INTEL_915G) || 559 (ent->device == PCI_DEVICE_ID_INTEL_915GM) || 560 (ent->device == PCI_DEVICE_ID_INTEL_945G) || 561 (ent->device == PCI_DEVICE_ID_INTEL_945GM) || 562 (ent->device == PCI_DEVICE_ID_INTEL_945GME) || 563 (ent->device == PCI_DEVICE_ID_INTEL_965G) || 564 (ent->device == PCI_DEVICE_ID_INTEL_965GM)) { 565 566 aperture_bar = 2; 567 mmio_bar = 0; 568 } 569 dinfo->aperture.physical = pci_resource_start(pdev, aperture_bar); 570 dinfo->aperture.size = pci_resource_len(pdev, aperture_bar); 571 dinfo->mmio_base_phys = pci_resource_start(pdev, mmio_bar); 572 DBG_MSG("fb aperture: 0x%llx/0x%llx, MMIO region: 0x%llx/0x%llx\n", 573 (unsigned long long)pci_resource_start(pdev, aperture_bar), 574 (unsigned long long)pci_resource_len(pdev, aperture_bar), 575 (unsigned long long)pci_resource_start(pdev, mmio_bar), 576 (unsigned long long)pci_resource_len(pdev, mmio_bar)); 577 578 /* Reserve the fb and MMIO regions */ 579 if (!request_mem_region(dinfo->aperture.physical, dinfo->aperture.size, 580 INTELFB_MODULE_NAME)) { 581 ERR_MSG("Cannot reserve FB region.\n"); 582 cleanup(dinfo); 583 return -ENODEV; 584 } 585 586 dinfo->flag |= INTELFB_FB_ACQUIRED; 587 588 if (!request_mem_region(dinfo->mmio_base_phys, 589 INTEL_REG_SIZE, 590 INTELFB_MODULE_NAME)) { 591 ERR_MSG("Cannot reserve MMIO region.\n"); 592 cleanup(dinfo); 593 return -ENODEV; 594 } 595 596 dinfo->flag |= INTELFB_MMIO_ACQUIRED; 597 598 /* Get the chipset info. */ 599 dinfo->pci_chipset = pdev->device; 600 601 if (intelfbhw_get_chipset(pdev, dinfo)) { 602 cleanup(dinfo); 603 return -ENODEV; 604 } 605 606 if (intelfbhw_get_memory(pdev, &aperture_size,&stolen_size)) { 607 cleanup(dinfo); 608 return -ENODEV; 609 } 610 611 INF_MSG("%02x:%02x.%d: %s, aperture size %dMB, " 612 "stolen memory %dkB\n", 613 pdev->bus->number, PCI_SLOT(pdev->devfn), 614 PCI_FUNC(pdev->devfn), dinfo->name, 615 BtoMB(aperture_size), BtoKB(stolen_size)); 616 617 /* Set these from the options. */ 618 dinfo->accel = accel; 619 dinfo->hwcursor = hwcursor; 620 621 if (NOACCEL_CHIPSET(dinfo) && dinfo->accel == 1) { 622 INF_MSG("Acceleration is not supported for the %s chipset.\n", 623 dinfo->name); 624 dinfo->accel = 0; 625 } 626 627 /* Framebuffer parameters - Use all the stolen memory if >= vram */ 628 if (ROUND_UP_TO_PAGE(stolen_size) >= MB(vram)) { 629 dinfo->fb.size = ROUND_UP_TO_PAGE(stolen_size); 630 dinfo->fbmem_gart = 0; 631 } else { 632 dinfo->fb.size = MB(vram); 633 dinfo->fbmem_gart = 1; 634 } 635 636 /* Allocate space for the ring buffer and HW cursor if enabled. */ 637 if (dinfo->accel) { 638 dinfo->ring.size = RINGBUFFER_SIZE; 639 dinfo->ring_tail_mask = dinfo->ring.size - 1; 640 } 641 if (dinfo->hwcursor) 642 dinfo->cursor.size = HW_CURSOR_SIZE; 643 644 /* Use agpgart to manage the GATT */ 645 if (!(bridge = agp_backend_acquire(pdev))) { 646 ERR_MSG("cannot acquire agp\n"); 647 cleanup(dinfo); 648 return -ENODEV; 649 } 650 651 /* get the current gatt info */ 652 if (agp_copy_info(bridge, >t_info)) { 653 ERR_MSG("cannot get agp info\n"); 654 agp_backend_release(bridge); 655 cleanup(dinfo); 656 return -ENODEV; 657 } 658 659 if (MB(voffset) < stolen_size) 660 offset = (stolen_size >> 12); 661 else 662 offset = ROUND_UP_TO_PAGE(MB(voffset))/GTT_PAGE_SIZE; 663 664 /* set the mem offsets - set them after the already used pages */ 665 if (dinfo->accel) 666 dinfo->ring.offset = offset + gtt_info.current_memory; 667 if (dinfo->hwcursor) 668 dinfo->cursor.offset = offset + 669 + gtt_info.current_memory + (dinfo->ring.size >> 12); 670 if (dinfo->fbmem_gart) 671 dinfo->fb.offset = offset + 672 + gtt_info.current_memory + (dinfo->ring.size >> 12) 673 + (dinfo->cursor.size >> 12); 674 675 /* Allocate memories (which aren't stolen) */ 676 /* Map the fb and MMIO regions */ 677 /* ioremap only up to the end of used aperture */ 678 dinfo->aperture.virtual = (u8 __iomem *)ioremap_nocache 679 (dinfo->aperture.physical, ((offset + dinfo->fb.offset) << 12) 680 + dinfo->fb.size); 681 if (!dinfo->aperture.virtual) { 682 ERR_MSG("Cannot remap FB region.\n"); 683 agp_backend_release(bridge); 684 cleanup(dinfo); 685 return -ENODEV; 686 } 687 688 dinfo->mmio_base = 689 (u8 __iomem *)ioremap_nocache(dinfo->mmio_base_phys, 690 INTEL_REG_SIZE); 691 if (!dinfo->mmio_base) { 692 ERR_MSG("Cannot remap MMIO region.\n"); 693 agp_backend_release(bridge); 694 cleanup(dinfo); 695 return -ENODEV; 696 } 697 698 if (dinfo->accel) { 699 if (!(dinfo->gtt_ring_mem = 700 agp_allocate_memory(bridge, dinfo->ring.size >> 12, 701 AGP_NORMAL_MEMORY))) { 702 ERR_MSG("cannot allocate ring buffer memory\n"); 703 agp_backend_release(bridge); 704 cleanup(dinfo); 705 return -ENOMEM; 706 } 707 if (agp_bind_memory(dinfo->gtt_ring_mem, 708 dinfo->ring.offset)) { 709 ERR_MSG("cannot bind ring buffer memory\n"); 710 agp_backend_release(bridge); 711 cleanup(dinfo); 712 return -EBUSY; 713 } 714 dinfo->ring.physical = dinfo->aperture.physical 715 + (dinfo->ring.offset << 12); 716 dinfo->ring.virtual = dinfo->aperture.virtual 717 + (dinfo->ring.offset << 12); 718 dinfo->ring_head = 0; 719 } 720 if (dinfo->hwcursor) { 721 agp_memtype = dinfo->mobile ? AGP_PHYSICAL_MEMORY 722 : AGP_NORMAL_MEMORY; 723 if (!(dinfo->gtt_cursor_mem = 724 agp_allocate_memory(bridge, dinfo->cursor.size >> 12, 725 agp_memtype))) { 726 ERR_MSG("cannot allocate cursor memory\n"); 727 agp_backend_release(bridge); 728 cleanup(dinfo); 729 return -ENOMEM; 730 } 731 if (agp_bind_memory(dinfo->gtt_cursor_mem, 732 dinfo->cursor.offset)) { 733 ERR_MSG("cannot bind cursor memory\n"); 734 agp_backend_release(bridge); 735 cleanup(dinfo); 736 return -EBUSY; 737 } 738 if (dinfo->mobile) 739 dinfo->cursor.physical 740 = dinfo->gtt_cursor_mem->physical; 741 else 742 dinfo->cursor.physical = dinfo->aperture.physical 743 + (dinfo->cursor.offset << 12); 744 dinfo->cursor.virtual = dinfo->aperture.virtual 745 + (dinfo->cursor.offset << 12); 746 } 747 if (dinfo->fbmem_gart) { 748 if (!(dinfo->gtt_fb_mem = 749 agp_allocate_memory(bridge, dinfo->fb.size >> 12, 750 AGP_NORMAL_MEMORY))) { 751 WRN_MSG("cannot allocate framebuffer memory - use " 752 "the stolen one\n"); 753 dinfo->fbmem_gart = 0; 754 } 755 if (agp_bind_memory(dinfo->gtt_fb_mem, 756 dinfo->fb.offset)) { 757 WRN_MSG("cannot bind framebuffer memory - use " 758 "the stolen one\n"); 759 dinfo->fbmem_gart = 0; 760 } 761 } 762 763 /* update framebuffer memory parameters */ 764 if (!dinfo->fbmem_gart) 765 dinfo->fb.offset = 0; /* starts at offset 0 */ 766 dinfo->fb.physical = dinfo->aperture.physical 767 + (dinfo->fb.offset << 12); 768 dinfo->fb.virtual = dinfo->aperture.virtual + (dinfo->fb.offset << 12); 769 dinfo->fb_start = dinfo->fb.offset << 12; 770 771 /* release agpgart */ 772 agp_backend_release(bridge); 773 774 if (mtrr) 775 set_mtrr(dinfo); 776 777 DBG_MSG("fb: 0x%x(+ 0x%x)/0x%x (0x%p)\n", 778 dinfo->fb.physical, dinfo->fb.offset, dinfo->fb.size, 779 dinfo->fb.virtual); 780 DBG_MSG("MMIO: 0x%x/0x%x (0x%p)\n", 781 dinfo->mmio_base_phys, INTEL_REG_SIZE, 782 dinfo->mmio_base); 783 DBG_MSG("ring buffer: 0x%x/0x%x (0x%p)\n", 784 dinfo->ring.physical, dinfo->ring.size, 785 dinfo->ring.virtual); 786 DBG_MSG("HW cursor: 0x%x/0x%x (0x%p) (offset 0x%x) (phys 0x%x)\n", 787 dinfo->cursor.physical, dinfo->cursor.size, 788 dinfo->cursor.virtual, dinfo->cursor.offset, 789 dinfo->cursor.physical); 790 791 DBG_MSG("options: vram = %d, accel = %d, hwcursor = %d, fixed = %d, " 792 "noinit = %d\n", vram, accel, hwcursor, fixed, noinit); 793 DBG_MSG("options: mode = \"%s\"\n", mode ? mode : ""); 794 795 if (probeonly) 796 bailout(dinfo); 797 798 /* 799 * Check if the LVDS port or any DVO ports are enabled. If so, 800 * don't allow mode switching 801 */ 802 dvo = intelfbhw_check_non_crt(dinfo); 803 if (dvo) { 804 dinfo->fixed_mode = 1; 805 WRN_MSG("Non-CRT device is enabled ( "); 806 i = 0; 807 while (dvo) { 808 if (dvo & 1) { 809 s = intelfbhw_dvo_to_string(1 << i); 810 if (s) 811 printk("%s ", s); 812 } 813 dvo >>= 1; 814 ++i; 815 } 816 printk("). Disabling mode switching.\n"); 817 } 818 819 if (bailearly == 1) 820 bailout(dinfo); 821 822 if (FIXED_MODE(dinfo) && 823 screen_info.orig_video_isVGA != VIDEO_TYPE_VLFB) { 824 ERR_MSG("Video mode must be programmed at boot time.\n"); 825 cleanup(dinfo); 826 return -ENODEV; 827 } 828 829 if (bailearly == 2) 830 bailout(dinfo); 831 832 /* Initialise dinfo and related data. */ 833 /* If an initial mode was programmed at boot time, get its details. */ 834 if (screen_info.orig_video_isVGA == VIDEO_TYPE_VLFB) 835 get_initial_mode(dinfo); 836 837 if (bailearly == 3) 838 bailout(dinfo); 839 840 if (FIXED_MODE(dinfo)) /* remap fb address */ 841 update_dinfo(dinfo, &dinfo->initial_var); 842 843 if (bailearly == 4) 844 bailout(dinfo); 845 846 847 if (intelfb_set_fbinfo(dinfo)) { 848 cleanup(dinfo); 849 return -ENODEV; 850 } 851 852 if (bailearly == 5) 853 bailout(dinfo); 854 855#ifdef CONFIG_FB_INTEL_I2C 856 /* register I2C bus */ 857 intelfb_create_i2c_busses(dinfo); 858#endif 859 860 if (bailearly == 6) 861 bailout(dinfo); 862 863 pci_set_drvdata(pdev, dinfo); 864 865 /* Save the initial register state. */ 866 i = intelfbhw_read_hw_state(dinfo, &dinfo->save_state, 867 bailearly > 6 ? bailearly - 6 : 0); 868 if (i != 0) { 869 DBG_MSG("intelfbhw_read_hw_state returned %d\n", i); 870 bailout(dinfo); 871 } 872 873 intelfbhw_print_hw_state(dinfo, &dinfo->save_state); 874 875 if (bailearly == 18) 876 bailout(dinfo); 877 878 /* read active pipe */ 879 dinfo->pipe = intelfbhw_active_pipe(&dinfo->save_state); 880 881 /* Cursor initialisation */ 882 if (dinfo->hwcursor) { 883 intelfbhw_cursor_init(dinfo); 884 intelfbhw_cursor_reset(dinfo); 885 } 886 887 if (bailearly == 19) 888 bailout(dinfo); 889 890 /* 2d acceleration init */ 891 if (dinfo->accel) 892 intelfbhw_2d_start(dinfo); 893 894 if (bailearly == 20) 895 bailout(dinfo); 896 897 if (noregister) 898 bailout(dinfo); 899 900 if (register_framebuffer(dinfo->info) < 0) { 901 ERR_MSG("Cannot register framebuffer.\n"); 902 cleanup(dinfo); 903 return -ENODEV; 904 } 905 906 dinfo->registered = 1; 907 dinfo->open = 0; 908 909 init_waitqueue_head(&dinfo->vsync.wait); 910 spin_lock_init(&dinfo->int_lock); 911 dinfo->irq_flags = 0; 912 dinfo->vsync.pan_display = 0; 913 dinfo->vsync.pan_offset = 0; 914 915 return 0; 916 917err_out_pixmap: 918 fb_dealloc_cmap(&info->cmap); 919err_out_cmap: 920 framebuffer_release(info); 921 return -ENODEV; 922} 923 924static void intelfb_pci_unregister(struct pci_dev *pdev) 925{ 926 struct intelfb_info *dinfo = pci_get_drvdata(pdev); 927 928 DBG_MSG("intelfb_pci_unregister\n"); 929 930 if (!dinfo) 931 return; 932 933 cleanup(dinfo); 934} 935 936/*************************************************************** 937 * helper functions * 938 ***************************************************************/ 939 940int __inline__ intelfb_var_to_depth(const struct fb_var_screeninfo *var) 941{ 942 DBG_MSG("intelfb_var_to_depth: bpp: %d, green.length is %d\n", 943 var->bits_per_pixel, var->green.length); 944 945 switch (var->bits_per_pixel) { 946 case 16: 947 return (var->green.length == 6) ? 16 : 15; 948 case 32: 949 return 24; 950 default: 951 return var->bits_per_pixel; 952 } 953} 954 955 956static __inline__ int var_to_refresh(const struct fb_var_screeninfo *var) 957{ 958 int xtot = var->xres + var->left_margin + var->right_margin + 959 var->hsync_len; 960 int ytot = var->yres + var->upper_margin + var->lower_margin + 961 var->vsync_len; 962 963 return (1000000000 / var->pixclock * 1000 + 500) / xtot / ytot; 964} 965 966/*************************************************************** 967 * Various intialisation functions * 968 ***************************************************************/ 969 970static void get_initial_mode(struct intelfb_info *dinfo) 971{ 972 struct fb_var_screeninfo *var; 973 int xtot, ytot; 974 975 DBG_MSG("get_initial_mode\n"); 976 977 dinfo->initial_vga = 1; 978 dinfo->initial_fb_base = screen_info.lfb_base; 979 dinfo->initial_video_ram = screen_info.lfb_size * KB(64); 980 dinfo->initial_pitch = screen_info.lfb_linelength; 981 982 var = &dinfo->initial_var; 983 memset(var, 0, sizeof(*var)); 984 var->xres = screen_info.lfb_width; 985 var->yres = screen_info.lfb_height; 986 var->bits_per_pixel = screen_info.lfb_depth; 987 switch (screen_info.lfb_depth) { 988 case 15: 989 var->bits_per_pixel = 16; 990 break; 991 case 24: 992 var->bits_per_pixel = 32; 993 break; 994 } 995 996 DBG_MSG("Initial info: FB is 0x%x/0x%x (%d kByte)\n", 997 dinfo->initial_fb_base, dinfo->initial_video_ram, 998 BtoKB(dinfo->initial_video_ram)); 999 1000 DBG_MSG("Initial info: mode is %dx%d-%d (%d)\n", 1001 var->xres, var->yres, var->bits_per_pixel, 1002 dinfo->initial_pitch); 1003 1004 /* Dummy timing values (assume 60Hz) */ 1005 var->left_margin = (var->xres / 8) & 0xf8; 1006 var->right_margin = 32; 1007 var->upper_margin = 16; 1008 var->lower_margin = 4; 1009 var->hsync_len = (var->xres / 8) & 0xf8; 1010 var->vsync_len = 4; 1011 1012 xtot = var->xres + var->left_margin + 1013 var->right_margin + var->hsync_len; 1014 ytot = var->yres + var->upper_margin + 1015 var->lower_margin + var->vsync_len; 1016 var->pixclock = 10000000 / xtot * 1000 / ytot * 100 / 60; 1017 1018 var->height = -1; 1019 var->width = -1; 1020 1021 if (var->bits_per_pixel > 8) { 1022 var->red.offset = screen_info.red_pos; 1023 var->red.length = screen_info.red_size; 1024 var->green.offset = screen_info.green_pos; 1025 var->green.length = screen_info.green_size; 1026 var->blue.offset = screen_info.blue_pos; 1027 var->blue.length = screen_info.blue_size; 1028 var->transp.offset = screen_info.rsvd_pos; 1029 var->transp.length = screen_info.rsvd_size; 1030 } else { 1031 var->red.length = 8; 1032 var->green.length = 8; 1033 var->blue.length = 8; 1034 } 1035} 1036 1037static int intelfb_init_var(struct intelfb_info *dinfo) 1038{ 1039 struct fb_var_screeninfo *var; 1040 int msrc = 0; 1041 1042 DBG_MSG("intelfb_init_var\n"); 1043 1044 var = &dinfo->info->var; 1045 if (FIXED_MODE(dinfo)) { 1046 memcpy(var, &dinfo->initial_var, 1047 sizeof(struct fb_var_screeninfo)); 1048 msrc = 5; 1049 } else { 1050 const u8 *edid_s = fb_firmware_edid(&dinfo->pdev->dev); 1051 u8 *edid_d = NULL; 1052 1053 if (edid_s) { 1054 edid_d = kmemdup(edid_s, EDID_LENGTH, GFP_KERNEL); 1055 1056 if (edid_d) { 1057 fb_edid_to_monspecs(edid_d, 1058 &dinfo->info->monspecs); 1059 kfree(edid_d); 1060 } 1061 } 1062 1063 if (mode) { 1064 printk("intelfb: Looking for mode in private " 1065 "database\n"); 1066 msrc = fb_find_mode(var, dinfo->info, mode, 1067 dinfo->info->monspecs.modedb, 1068 dinfo->info->monspecs.modedb_len, 1069 NULL, 0); 1070 1071 if (msrc && msrc > 1) { 1072 printk("intelfb: No mode in private database, " 1073 "intelfb: looking for mode in global " 1074 "database "); 1075 msrc = fb_find_mode(var, dinfo->info, mode, 1076 NULL, 0, NULL, 0); 1077 1078 if (msrc) 1079 msrc |= 8; 1080 } 1081 1082 } 1083 1084 if (!msrc) 1085 msrc = fb_find_mode(var, dinfo->info, PREFERRED_MODE, 1086 NULL, 0, NULL, 0); 1087 } 1088 1089 if (!msrc) { 1090 ERR_MSG("Cannot find a suitable video mode.\n"); 1091 return 1; 1092 } 1093 1094 INF_MSG("Initial video mode is %dx%d-%d@%d.\n", var->xres, var->yres, 1095 var->bits_per_pixel, var_to_refresh(var)); 1096 1097 DBG_MSG("Initial video mode is from %d.\n", msrc); 1098 1099#if ALLOCATE_FOR_PANNING 1100 /* Allow use of half of the video ram for panning */ 1101 var->xres_virtual = var->xres; 1102 var->yres_virtual = 1103 dinfo->fb.size / 2 / (var->bits_per_pixel * var->xres); 1104 if (var->yres_virtual < var->yres) 1105 var->yres_virtual = var->yres; 1106#else 1107 var->yres_virtual = var->yres; 1108#endif 1109 1110 if (dinfo->accel) 1111 var->accel_flags |= FB_ACCELF_TEXT; 1112 else 1113 var->accel_flags &= ~FB_ACCELF_TEXT; 1114 1115 return 0; 1116} 1117 1118static int intelfb_set_fbinfo(struct intelfb_info *dinfo) 1119{ 1120 struct fb_info *info = dinfo->info; 1121 1122 DBG_MSG("intelfb_set_fbinfo\n"); 1123 1124 info->flags = FBINFO_FLAG_DEFAULT; 1125 info->fbops = &intel_fb_ops; 1126 info->pseudo_palette = dinfo->pseudo_palette; 1127 1128 info->pixmap.size = 64*1024; 1129 info->pixmap.buf_align = 8; 1130 info->pixmap.access_align = 32; 1131 info->pixmap.flags = FB_PIXMAP_SYSTEM; 1132 1133 if (intelfb_init_var(dinfo)) 1134 return 1; 1135 1136 info->pixmap.scan_align = 1; 1137 strcpy(info->fix.id, dinfo->name); 1138 info->fix.smem_start = dinfo->fb.physical; 1139 info->fix.smem_len = dinfo->fb.size; 1140 info->fix.type = FB_TYPE_PACKED_PIXELS; 1141 info->fix.type_aux = 0; 1142 info->fix.xpanstep = 8; 1143 info->fix.ypanstep = 1; 1144 info->fix.ywrapstep = 0; 1145 info->fix.mmio_start = dinfo->mmio_base_phys; 1146 info->fix.mmio_len = INTEL_REG_SIZE; 1147 info->fix.accel = FB_ACCEL_I830; 1148 update_dinfo(dinfo, &info->var); 1149 1150 return 0; 1151} 1152 1153/* Update dinfo to match the active video mode. */ 1154static void update_dinfo(struct intelfb_info *dinfo, 1155 struct fb_var_screeninfo *var) 1156{ 1157 DBG_MSG("update_dinfo\n"); 1158 1159 dinfo->bpp = var->bits_per_pixel; 1160 dinfo->depth = intelfb_var_to_depth(var); 1161 dinfo->xres = var->xres; 1162 dinfo->yres = var->xres; 1163 dinfo->pixclock = var->pixclock; 1164 1165 dinfo->info->fix.visual = dinfo->visual; 1166 dinfo->info->fix.line_length = dinfo->pitch; 1167 1168 switch (dinfo->bpp) { 1169 case 8: 1170 dinfo->visual = FB_VISUAL_PSEUDOCOLOR; 1171 dinfo->pitch = var->xres_virtual; 1172 break; 1173 case 16: 1174 dinfo->visual = FB_VISUAL_TRUECOLOR; 1175 dinfo->pitch = var->xres_virtual * 2; 1176 break; 1177 case 32: 1178 dinfo->visual = FB_VISUAL_TRUECOLOR; 1179 dinfo->pitch = var->xres_virtual * 4; 1180 break; 1181 } 1182 1183 /* Make sure the line length is a aligned correctly. */ 1184 if (IS_I9XX(dinfo)) 1185 dinfo->pitch = ROUND_UP_TO(dinfo->pitch, STRIDE_ALIGNMENT_I9XX); 1186 else 1187 dinfo->pitch = ROUND_UP_TO(dinfo->pitch, STRIDE_ALIGNMENT); 1188 1189 if (FIXED_MODE(dinfo)) 1190 dinfo->pitch = dinfo->initial_pitch; 1191 1192 dinfo->info->screen_base = (char __iomem *)dinfo->fb.virtual; 1193 dinfo->info->fix.line_length = dinfo->pitch; 1194 dinfo->info->fix.visual = dinfo->visual; 1195} 1196 1197/* fbops functions */ 1198 1199/*************************************************************** 1200 * fbdev interface * 1201 ***************************************************************/ 1202 1203static int intelfb_open(struct fb_info *info, int user) 1204{ 1205 struct intelfb_info *dinfo = GET_DINFO(info); 1206 1207 if (user) 1208 dinfo->open++; 1209 1210 return 0; 1211} 1212 1213static int intelfb_release(struct fb_info *info, int user) 1214{ 1215 struct intelfb_info *dinfo = GET_DINFO(info); 1216 1217 if (user) { 1218 dinfo->open--; 1219 msleep(1); 1220 if (!dinfo->open) 1221 intelfbhw_disable_irq(dinfo); 1222 } 1223 1224 return 0; 1225} 1226 1227static int intelfb_check_var(struct fb_var_screeninfo *var, 1228 struct fb_info *info) 1229{ 1230 int change_var = 0; 1231 struct fb_var_screeninfo v; 1232 struct intelfb_info *dinfo; 1233 static int first = 1; 1234 int i; 1235 /* Good pitches to allow tiling. Don't care about pitches < 1024. */ 1236 static const int pitches[] = { 1237 128 * 8, 1238 128 * 16, 1239 128 * 32, 1240 128 * 64, 1241 0 1242 }; 1243 1244 DBG_MSG("intelfb_check_var: accel_flags is %d\n", var->accel_flags); 1245 1246 dinfo = GET_DINFO(info); 1247 1248 /* update the pitch */ 1249 if (intelfbhw_validate_mode(dinfo, var) != 0) 1250 return -EINVAL; 1251 1252 v = *var; 1253 1254 for (i = 0; pitches[i] != 0; i++) { 1255 if (pitches[i] >= v.xres_virtual) { 1256 v.xres_virtual = pitches[i]; 1257 break; 1258 } 1259 } 1260 1261 /* Check for a supported bpp. */ 1262 if (v.bits_per_pixel <= 8) 1263 v.bits_per_pixel = 8; 1264 else if (v.bits_per_pixel <= 16) { 1265 if (v.bits_per_pixel == 16) 1266 v.green.length = 6; 1267 v.bits_per_pixel = 16; 1268 } else if (v.bits_per_pixel <= 32) 1269 v.bits_per_pixel = 32; 1270 else 1271 return -EINVAL; 1272 1273 change_var = ((info->var.xres != var->xres) || 1274 (info->var.yres != var->yres) || 1275 (info->var.xres_virtual != var->xres_virtual) || 1276 (info->var.yres_virtual != var->yres_virtual) || 1277 (info->var.bits_per_pixel != var->bits_per_pixel) || 1278 memcmp(&info->var.red, &var->red, sizeof(var->red)) || 1279 memcmp(&info->var.green, &var->green, 1280 sizeof(var->green)) || 1281 memcmp(&info->var.blue, &var->blue, sizeof(var->blue))); 1282 1283 if (FIXED_MODE(dinfo) && 1284 (change_var || 1285 var->yres_virtual > dinfo->initial_var.yres_virtual || 1286 var->yres_virtual < dinfo->initial_var.yres || 1287 var->xoffset || var->nonstd)) { 1288 if (first) { 1289 ERR_MSG("Changing the video mode is not supported.\n"); 1290 first = 0; 1291 } 1292 return -EINVAL; 1293 } 1294 1295 switch (intelfb_var_to_depth(&v)) { 1296 case 8: 1297 v.red.offset = v.green.offset = v.blue.offset = 0; 1298 v.red.length = v.green.length = v.blue.length = 8; 1299 v.transp.offset = v.transp.length = 0; 1300 break; 1301 case 15: 1302 v.red.offset = 10; 1303 v.green.offset = 5; 1304 v.blue.offset = 0; 1305 v.red.length = v.green.length = v.blue.length = 5; 1306 v.transp.offset = v.transp.length = 0; 1307 break; 1308 case 16: 1309 v.red.offset = 11; 1310 v.green.offset = 5; 1311 v.blue.offset = 0; 1312 v.red.length = 5; 1313 v.green.length = 6; 1314 v.blue.length = 5; 1315 v.transp.offset = v.transp.length = 0; 1316 break; 1317 case 24: 1318 v.red.offset = 16; 1319 v.green.offset = 8; 1320 v.blue.offset = 0; 1321 v.red.length = v.green.length = v.blue.length = 8; 1322 v.transp.offset = v.transp.length = 0; 1323 break; 1324 case 32: 1325 v.red.offset = 16; 1326 v.green.offset = 8; 1327 v.blue.offset = 0; 1328 v.red.length = v.green.length = v.blue.length = 8; 1329 v.transp.offset = 24; 1330 v.transp.length = 8; 1331 break; 1332 } 1333 1334 if (v.xoffset < 0) 1335 v.xoffset = 0; 1336 if (v.yoffset < 0) 1337 v.yoffset = 0; 1338 1339 if (v.xoffset > v.xres_virtual - v.xres) 1340 v.xoffset = v.xres_virtual - v.xres; 1341 if (v.yoffset > v.yres_virtual - v.yres) 1342 v.yoffset = v.yres_virtual - v.yres; 1343 1344 v.red.msb_right = v.green.msb_right = v.blue.msb_right = 1345 v.transp.msb_right = 0; 1346 1347 *var = v; 1348 1349 return 0; 1350} 1351 1352static int intelfb_set_par(struct fb_info *info) 1353{ 1354 struct intelfb_hwstate *hw; 1355 struct intelfb_info *dinfo = GET_DINFO(info); 1356 1357 if (FIXED_MODE(dinfo)) { 1358 ERR_MSG("Changing the video mode is not supported.\n"); 1359 return -EINVAL; 1360 } 1361 1362 hw = kmalloc(sizeof(*hw), GFP_ATOMIC); 1363 if (!hw) 1364 return -ENOMEM; 1365 1366 DBG_MSG("intelfb_set_par (%dx%d-%d)\n", info->var.xres, 1367 info->var.yres, info->var.bits_per_pixel); 1368 1369 /* 1370 * Disable VCO prior to timing register change. 1371 */ 1372 OUTREG(DPLL_A, INREG(DPLL_A) & ~DPLL_VCO_ENABLE); 1373 1374 intelfb_blank(FB_BLANK_POWERDOWN, info); 1375 1376 if (ACCEL(dinfo, info)) 1377 intelfbhw_2d_stop(dinfo); 1378 1379 memcpy(hw, &dinfo->save_state, sizeof(*hw)); 1380 if (intelfbhw_mode_to_hw(dinfo, hw, &info->var)) 1381 goto invalid_mode; 1382 if (intelfbhw_program_mode(dinfo, hw, 0)) 1383 goto invalid_mode; 1384 1385#if REGDUMP > 0 1386 intelfbhw_read_hw_state(dinfo, hw, 0); 1387 intelfbhw_print_hw_state(dinfo, hw); 1388#endif 1389 1390 update_dinfo(dinfo, &info->var); 1391 1392 if (ACCEL(dinfo, info)) 1393 intelfbhw_2d_start(dinfo); 1394 1395 intelfb_pan_display(&info->var, info); 1396 1397 intelfb_blank(FB_BLANK_UNBLANK, info); 1398 1399 if (ACCEL(dinfo, info)) { 1400 info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN | 1401 FBINFO_HWACCEL_COPYAREA | FBINFO_HWACCEL_FILLRECT | 1402 FBINFO_HWACCEL_IMAGEBLIT; 1403 } else 1404 info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN; 1405 1406 kfree(hw); 1407 return 0; 1408invalid_mode: 1409 kfree(hw); 1410 return -EINVAL; 1411} 1412 1413static int intelfb_setcolreg(unsigned regno, unsigned red, unsigned green, 1414 unsigned blue, unsigned transp, 1415 struct fb_info *info) 1416{ 1417 struct intelfb_info *dinfo = GET_DINFO(info); 1418 1419#if VERBOSE > 0 1420 DBG_MSG("intelfb_setcolreg: regno %d, depth %d\n", regno, dinfo->depth); 1421#endif 1422 1423 if (regno > 255) 1424 return 1; 1425 1426 if (dinfo->depth == 8) { 1427 red >>= 8; 1428 green >>= 8; 1429 blue >>= 8; 1430 1431 intelfbhw_setcolreg(dinfo, regno, red, green, blue, 1432 transp); 1433 } 1434 1435 if (regno < 16) { 1436 switch (dinfo->depth) { 1437 case 15: 1438 dinfo->pseudo_palette[regno] = ((red & 0xf800) >> 1) | 1439 ((green & 0xf800) >> 6) | 1440 ((blue & 0xf800) >> 11); 1441 break; 1442 case 16: 1443 dinfo->pseudo_palette[regno] = (red & 0xf800) | 1444 ((green & 0xfc00) >> 5) | 1445 ((blue & 0xf800) >> 11); 1446 break; 1447 case 24: 1448 dinfo->pseudo_palette[regno] = ((red & 0xff00) << 8) | 1449 (green & 0xff00) | 1450 ((blue & 0xff00) >> 8); 1451 break; 1452 } 1453 } 1454 1455 return 0; 1456} 1457 1458static int intelfb_blank(int blank, struct fb_info *info) 1459{ 1460 intelfbhw_do_blank(blank, info); 1461 return 0; 1462} 1463 1464static int intelfb_pan_display(struct fb_var_screeninfo *var, 1465 struct fb_info *info) 1466{ 1467 intelfbhw_pan_display(var, info); 1468 return 0; 1469} 1470 1471/* When/if we have our own ioctls. */ 1472static int intelfb_ioctl(struct fb_info *info, unsigned int cmd, 1473 unsigned long arg) 1474{ 1475 int retval = 0; 1476 struct intelfb_info *dinfo = GET_DINFO(info); 1477 u32 pipe = 0; 1478 1479 switch (cmd) { 1480 case FBIO_WAITFORVSYNC: 1481 if (get_user(pipe, (__u32 __user *)arg)) 1482 return -EFAULT; 1483 1484 retval = intelfbhw_wait_for_vsync(dinfo, pipe); 1485 break; 1486 default: 1487 break; 1488 } 1489 1490 return retval; 1491} 1492 1493static void intelfb_fillrect (struct fb_info *info, 1494 const struct fb_fillrect *rect) 1495{ 1496 struct intelfb_info *dinfo = GET_DINFO(info); 1497 u32 rop, color; 1498 1499#if VERBOSE > 0 1500 DBG_MSG("intelfb_fillrect\n"); 1501#endif 1502 1503 if (!ACCEL(dinfo, info) || dinfo->depth == 4) { 1504 cfb_fillrect(info, rect); 1505 return; 1506 } 1507 1508 if (rect->rop == ROP_COPY) 1509 rop = PAT_ROP_GXCOPY; 1510 else /* ROP_XOR */ 1511 rop = PAT_ROP_GXXOR; 1512 1513 if (dinfo->depth != 8) 1514 color = dinfo->pseudo_palette[rect->color]; 1515 else 1516 color = rect->color; 1517 1518 intelfbhw_do_fillrect(dinfo, rect->dx, rect->dy, 1519 rect->width, rect->height, color, 1520 dinfo->pitch, info->var.bits_per_pixel, 1521 rop); 1522} 1523 1524static void intelfb_copyarea(struct fb_info *info, 1525 const struct fb_copyarea *region) 1526{ 1527 struct intelfb_info *dinfo = GET_DINFO(info); 1528 1529#if VERBOSE > 0 1530 DBG_MSG("intelfb_copyarea\n"); 1531#endif 1532 1533 if (!ACCEL(dinfo, info) || dinfo->depth == 4) { 1534 cfb_copyarea(info, region); 1535 return; 1536 } 1537 1538 intelfbhw_do_bitblt(dinfo, region->sx, region->sy, region->dx, 1539 region->dy, region->width, region->height, 1540 dinfo->pitch, info->var.bits_per_pixel); 1541} 1542 1543static void intelfb_imageblit(struct fb_info *info, 1544 const struct fb_image *image) 1545{ 1546 struct intelfb_info *dinfo = GET_DINFO(info); 1547 u32 fgcolor, bgcolor; 1548 1549#if VERBOSE > 0 1550 DBG_MSG("intelfb_imageblit\n"); 1551#endif 1552 1553 if (!ACCEL(dinfo, info) || dinfo->depth == 4 1554 || image->depth != 1) { 1555 cfb_imageblit(info, image); 1556 return; 1557 } 1558 1559 if (dinfo->depth != 8) { 1560 fgcolor = dinfo->pseudo_palette[image->fg_color]; 1561 bgcolor = dinfo->pseudo_palette[image->bg_color]; 1562 } else { 1563 fgcolor = image->fg_color; 1564 bgcolor = image->bg_color; 1565 } 1566 1567 if (!intelfbhw_do_drawglyph(dinfo, fgcolor, bgcolor, image->width, 1568 image->height, image->data, 1569 image->dx, image->dy, 1570 dinfo->pitch, info->var.bits_per_pixel)) { 1571 cfb_imageblit(info, image); 1572 return; 1573 } 1574} 1575 1576static int intelfb_cursor(struct fb_info *info, struct fb_cursor *cursor) 1577{ 1578 struct intelfb_info *dinfo = GET_DINFO(info); 1579 u32 physical; 1580#if VERBOSE > 0 1581 DBG_MSG("intelfb_cursor\n"); 1582#endif 1583 1584 if (!dinfo->hwcursor) 1585 return -ENODEV; 1586 1587 intelfbhw_cursor_hide(dinfo); 1588 1589 /* If XFree killed the cursor - restore it */ 1590 physical = (dinfo->mobile || IS_I9XX(dinfo)) ? dinfo->cursor.physical : 1591 (dinfo->cursor.offset << 12); 1592 1593 if (INREG(CURSOR_A_BASEADDR) != physical) { 1594 u32 fg, bg; 1595 1596 DBG_MSG("the cursor was killed - restore it !!\n"); 1597 DBG_MSG("size %d, %d pos %d, %d\n", 1598 cursor->image.width, cursor->image.height, 1599 cursor->image.dx, cursor->image.dy); 1600 1601 intelfbhw_cursor_init(dinfo); 1602 intelfbhw_cursor_reset(dinfo); 1603 intelfbhw_cursor_setpos(dinfo, cursor->image.dx, 1604 cursor->image.dy); 1605 1606 if (dinfo->depth != 8) { 1607 fg =dinfo->pseudo_palette[cursor->image.fg_color]; 1608 bg =dinfo->pseudo_palette[cursor->image.bg_color]; 1609 } else { 1610 fg = cursor->image.fg_color; 1611 bg = cursor->image.bg_color; 1612 } 1613 intelfbhw_cursor_setcolor(dinfo, bg, fg); 1614 intelfbhw_cursor_load(dinfo, cursor->image.width, 1615 cursor->image.height, 1616 dinfo->cursor_src); 1617 1618 if (cursor->enable) 1619 intelfbhw_cursor_show(dinfo); 1620 return 0; 1621 } 1622 1623 if (cursor->set & FB_CUR_SETPOS) { 1624 u32 dx, dy; 1625 1626 dx = cursor->image.dx - info->var.xoffset; 1627 dy = cursor->image.dy - info->var.yoffset; 1628 1629 intelfbhw_cursor_setpos(dinfo, dx, dy); 1630 } 1631 1632 if (cursor->set & FB_CUR_SETSIZE) { 1633 if (cursor->image.width > 64 || cursor->image.height > 64) 1634 return -ENXIO; 1635 1636 intelfbhw_cursor_reset(dinfo); 1637 } 1638 1639 if (cursor->set & FB_CUR_SETCMAP) { 1640 u32 fg, bg; 1641 1642 if (dinfo->depth != 8) { 1643 fg = dinfo->pseudo_palette[cursor->image.fg_color]; 1644 bg = dinfo->pseudo_palette[cursor->image.bg_color]; 1645 } else { 1646 fg = cursor->image.fg_color; 1647 bg = cursor->image.bg_color; 1648 } 1649 1650 intelfbhw_cursor_setcolor(dinfo, bg, fg); 1651 } 1652 1653 if (cursor->set & (FB_CUR_SETSHAPE | FB_CUR_SETIMAGE)) { 1654 u32 s_pitch = (ROUND_UP_TO(cursor->image.width, 8) / 8); 1655 u32 size = s_pitch * cursor->image.height; 1656 u8 *dat = (u8 *) cursor->image.data; 1657 u8 *msk = (u8 *) cursor->mask; 1658 u8 src[64]; 1659 u32 i; 1660 1661 if (cursor->image.depth != 1) 1662 return -ENXIO; 1663 1664 switch (cursor->rop) { 1665 case ROP_XOR: 1666 for (i = 0; i < size; i++) 1667 src[i] = dat[i] ^ msk[i]; 1668 break; 1669 case ROP_COPY: 1670 default: 1671 for (i = 0; i < size; i++) 1672 src[i] = dat[i] & msk[i]; 1673 break; 1674 } 1675 1676 /* save the bitmap to restore it when XFree will 1677 make the cursor dirty */ 1678 memcpy(dinfo->cursor_src, src, size); 1679 1680 intelfbhw_cursor_load(dinfo, cursor->image.width, 1681 cursor->image.height, src); 1682 } 1683 1684 if (cursor->enable) 1685 intelfbhw_cursor_show(dinfo); 1686 1687 return 0; 1688} 1689 1690static int intelfb_sync(struct fb_info *info) 1691{ 1692 struct intelfb_info *dinfo = GET_DINFO(info); 1693 1694#if VERBOSE > 0 1695 DBG_MSG("intelfb_sync\n"); 1696#endif 1697 1698 if (dinfo->ring_lockup) 1699 return 0; 1700 1701 intelfbhw_do_sync(dinfo); 1702 return 0; 1703} 1704 1705