1 /* 2 * linux/drivers/video/neofb.c -- NeoMagic Framebuffer Driver 3 * 4 * Copyright (c) 2001-2002 Denis Oliver Kropp <dok@directfb.org> 5 * 6 * 7 * Card specific code is based on XFree86's neomagic driver. 8 * Framebuffer framework code is based on code of cyber2000fb. 9 * 10 * This file is subject to the terms and conditions of the GNU General 11 * Public License. See the file COPYING in the main directory of this 12 * archive for more details. 13 * 14 * 15 * 0.4.1 16 * - Cosmetic changes (dok) 17 * 18 * 0.4 19 * - Toshiba Libretto support, allow modes larger than LCD size if 20 * LCD is disabled, keep BIOS settings if internal/external display 21 * haven't been enabled explicitly 22 * (Thomas J. Moore <dark@mama.indstate.edu>) 23 * 24 * 0.3.3 25 * - Porting over to new fbdev api. (jsimmons) 26 * 27 * 0.3.2 28 * - got rid of all floating point (dok) 29 * 30 * 0.3.1 31 * - added module license (dok) 32 * 33 * 0.3 34 * - hardware accelerated clear and move for 2200 and above (dok) 35 * - maximum allowed dotclock is handled now (dok) 36 * 37 * 0.2.1 38 * - correct panning after X usage (dok) 39 * - added module and kernel parameters (dok) 40 * - no stretching if external display is enabled (dok) 41 * 42 * 0.2 43 * - initial version (dok) 44 * 45 * 46 * TODO 47 * - ioctl for internal/external switching 48 * - blanking 49 * - 32bit depth support, maybe impossible 50 * - disable pan-on-sync, need specs 51 * 52 * BUGS 53 * - white margin on bootup like with tdfxfb (colormap problem?) 54 * 55 */ 56 57 #include <linux/module.h> 58 #include <linux/kernel.h> 59 #include <linux/errno.h> 60 #include <linux/string.h> 61 #include <linux/mm.h> 62 #include <linux/slab.h> 63 #include <linux/delay.h> 64 #include <linux/fb.h> 65 #include <linux/pci.h> 66 #include <linux/init.h> 67 #ifdef CONFIG_TOSHIBA 68 #include <linux/toshiba.h> 69 #endif 70 71 #include <asm/io.h> 72 #include <asm/irq.h> 73 #include <asm/pgtable.h> 74 #include <video/vga.h> 75 #include <video/neomagic.h> 76 77 #define NEOFB_VERSION "0.4.2" 78 79 /* --------------------------------------------------------------------- */ 80 81 static bool internal; 82 static bool external; 83 static bool libretto; 84 static bool nostretch; 85 static bool nopciburst; 86 static char *mode_option = NULL; 87 88 #ifdef MODULE 89 90 MODULE_AUTHOR("(c) 2001-2002 Denis Oliver Kropp <dok@convergence.de>"); 91 MODULE_LICENSE("GPL"); 92 MODULE_DESCRIPTION("FBDev driver for NeoMagic PCI Chips"); 93 module_param(internal, bool, 0); 94 MODULE_PARM_DESC(internal, "Enable output on internal LCD Display."); 95 module_param(external, bool, 0); 96 MODULE_PARM_DESC(external, "Enable output on external CRT."); 97 module_param(libretto, bool, 0); 98 MODULE_PARM_DESC(libretto, "Force Libretto 100/110 800x480 LCD."); 99 module_param(nostretch, bool, 0); 100 MODULE_PARM_DESC(nostretch, 101 "Disable stretching of modes smaller than LCD."); 102 module_param(nopciburst, bool, 0); 103 MODULE_PARM_DESC(nopciburst, "Disable PCI burst mode."); 104 module_param(mode_option, charp, 0); 105 MODULE_PARM_DESC(mode_option, "Preferred video mode ('640x480-8@60', etc)"); 106 107 #endif 108 109 110 /* --------------------------------------------------------------------- */ 111 112 static biosMode bios8[] = { 113 {320, 240, 0x40}, 114 {300, 400, 0x42}, 115 {640, 400, 0x20}, 116 {640, 480, 0x21}, 117 {800, 600, 0x23}, 118 {1024, 768, 0x25}, 119 }; 120 121 static biosMode bios16[] = { 122 {320, 200, 0x2e}, 123 {320, 240, 0x41}, 124 {300, 400, 0x43}, 125 {640, 480, 0x31}, 126 {800, 600, 0x34}, 127 {1024, 768, 0x37}, 128 }; 129 130 static biosMode bios24[] = { 131 {640, 480, 0x32}, 132 {800, 600, 0x35}, 133 {1024, 768, 0x38} 134 }; 135 136 #ifdef NO_32BIT_SUPPORT_YET 137 /* FIXME: guessed values, wrong */ 138 static biosMode bios32[] = { 139 {640, 480, 0x33}, 140 {800, 600, 0x36}, 141 {1024, 768, 0x39} 142 }; 143 #endif 144 145 static inline void write_le32(int regindex, u32 val, const struct neofb_par *par) 146 { 147 writel(val, par->neo2200 + par->cursorOff + regindex); 148 } 149 150 static int neoFindMode(int xres, int yres, int depth) 151 { 152 int xres_s; 153 int i, size; 154 biosMode *mode; 155 156 switch (depth) { 157 case 8: 158 size = ARRAY_SIZE(bios8); 159 mode = bios8; 160 break; 161 case 16: 162 size = ARRAY_SIZE(bios16); 163 mode = bios16; 164 break; 165 case 24: 166 size = ARRAY_SIZE(bios24); 167 mode = bios24; 168 break; 169 #ifdef NO_32BIT_SUPPORT_YET 170 case 32: 171 size = ARRAY_SIZE(bios32); 172 mode = bios32; 173 break; 174 #endif 175 default: 176 return 0; 177 } 178 179 for (i = 0; i < size; i++) { 180 if (xres <= mode[i].x_res) { 181 xres_s = mode[i].x_res; 182 for (; i < size; i++) { 183 if (mode[i].x_res != xres_s) 184 return mode[i - 1].mode; 185 if (yres <= mode[i].y_res) 186 return mode[i].mode; 187 } 188 } 189 } 190 return mode[size - 1].mode; 191 } 192 193 /* 194 * neoCalcVCLK -- 195 * 196 * Determine the closest clock frequency to the one requested. 197 */ 198 #define MAX_N 127 199 #define MAX_D 31 200 #define MAX_F 1 201 202 static void neoCalcVCLK(const struct fb_info *info, 203 struct neofb_par *par, long freq) 204 { 205 int n, d, f; 206 int n_best = 0, d_best = 0, f_best = 0; 207 long f_best_diff = 0x7ffff; 208 209 for (f = 0; f <= MAX_F; f++) 210 for (d = 0; d <= MAX_D; d++) 211 for (n = 0; n <= MAX_N; n++) { 212 long f_out; 213 long f_diff; 214 215 f_out = ((14318 * (n + 1)) / (d + 1)) >> f; 216 f_diff = abs(f_out - freq); 217 if (f_diff <= f_best_diff) { 218 f_best_diff = f_diff; 219 n_best = n; 220 d_best = d; 221 f_best = f; 222 } 223 if (f_out > freq) 224 break; 225 } 226 227 if (info->fix.accel == FB_ACCEL_NEOMAGIC_NM2200 || 228 info->fix.accel == FB_ACCEL_NEOMAGIC_NM2230 || 229 info->fix.accel == FB_ACCEL_NEOMAGIC_NM2360 || 230 info->fix.accel == FB_ACCEL_NEOMAGIC_NM2380) { 231 /* NOT_DONE: We are trying the full range of the 2200 clock. 232 We should be able to try n up to 2047 */ 233 par->VCLK3NumeratorLow = n_best; 234 par->VCLK3NumeratorHigh = (f_best << 7); 235 } else 236 par->VCLK3NumeratorLow = n_best | (f_best << 7); 237 238 par->VCLK3Denominator = d_best; 239 240 #ifdef NEOFB_DEBUG 241 printk(KERN_DEBUG "neoVCLK: f:%ld NumLow=%d NumHi=%d Den=%d Df=%ld\n", 242 freq, 243 par->VCLK3NumeratorLow, 244 par->VCLK3NumeratorHigh, 245 par->VCLK3Denominator, f_best_diff); 246 #endif 247 } 248 249 /* 250 * vgaHWInit -- 251 * Handle the initialization, etc. of a screen. 252 * Return FALSE on failure. 253 */ 254 255 static int vgaHWInit(const struct fb_var_screeninfo *var, 256 struct neofb_par *par) 257 { 258 int hsync_end = var->xres + var->right_margin + var->hsync_len; 259 int htotal = (hsync_end + var->left_margin) >> 3; 260 int vsync_start = var->yres + var->lower_margin; 261 int vsync_end = vsync_start + var->vsync_len; 262 int vtotal = vsync_end + var->upper_margin; 263 264 par->MiscOutReg = 0x23; 265 266 if (!(var->sync & FB_SYNC_HOR_HIGH_ACT)) 267 par->MiscOutReg |= 0x40; 268 269 if (!(var->sync & FB_SYNC_VERT_HIGH_ACT)) 270 par->MiscOutReg |= 0x80; 271 272 /* 273 * Time Sequencer 274 */ 275 par->Sequencer[0] = 0x00; 276 par->Sequencer[1] = 0x01; 277 par->Sequencer[2] = 0x0F; 278 par->Sequencer[3] = 0x00; /* Font select */ 279 par->Sequencer[4] = 0x0E; /* Misc */ 280 281 /* 282 * CRTC Controller 283 */ 284 par->CRTC[0] = htotal - 5; 285 par->CRTC[1] = (var->xres >> 3) - 1; 286 par->CRTC[2] = (var->xres >> 3) - 1; 287 par->CRTC[3] = ((htotal - 1) & 0x1F) | 0x80; 288 par->CRTC[4] = ((var->xres + var->right_margin) >> 3); 289 par->CRTC[5] = (((htotal - 1) & 0x20) << 2) 290 | (((hsync_end >> 3)) & 0x1F); 291 par->CRTC[6] = (vtotal - 2) & 0xFF; 292 par->CRTC[7] = (((vtotal - 2) & 0x100) >> 8) 293 | (((var->yres - 1) & 0x100) >> 7) 294 | ((vsync_start & 0x100) >> 6) 295 | (((var->yres - 1) & 0x100) >> 5) 296 | 0x10 | (((vtotal - 2) & 0x200) >> 4) 297 | (((var->yres - 1) & 0x200) >> 3) 298 | ((vsync_start & 0x200) >> 2); 299 par->CRTC[8] = 0x00; 300 par->CRTC[9] = (((var->yres - 1) & 0x200) >> 4) | 0x40; 301 302 if (var->vmode & FB_VMODE_DOUBLE) 303 par->CRTC[9] |= 0x80; 304 305 par->CRTC[10] = 0x00; 306 par->CRTC[11] = 0x00; 307 par->CRTC[12] = 0x00; 308 par->CRTC[13] = 0x00; 309 par->CRTC[14] = 0x00; 310 par->CRTC[15] = 0x00; 311 par->CRTC[16] = vsync_start & 0xFF; 312 par->CRTC[17] = (vsync_end & 0x0F) | 0x20; 313 par->CRTC[18] = (var->yres - 1) & 0xFF; 314 par->CRTC[19] = var->xres_virtual >> 4; 315 par->CRTC[20] = 0x00; 316 par->CRTC[21] = (var->yres - 1) & 0xFF; 317 par->CRTC[22] = (vtotal - 1) & 0xFF; 318 par->CRTC[23] = 0xC3; 319 par->CRTC[24] = 0xFF; 320 321 /* 322 * are these unnecessary? 323 * vgaHWHBlankKGA(mode, regp, 0, KGA_FIX_OVERSCAN | KGA_ENABLE_ON_ZERO); 324 * vgaHWVBlankKGA(mode, regp, 0, KGA_FIX_OVERSCAN | KGA_ENABLE_ON_ZERO); 325 */ 326 327 /* 328 * Graphics Display Controller 329 */ 330 par->Graphics[0] = 0x00; 331 par->Graphics[1] = 0x00; 332 par->Graphics[2] = 0x00; 333 par->Graphics[3] = 0x00; 334 par->Graphics[4] = 0x00; 335 par->Graphics[5] = 0x40; 336 par->Graphics[6] = 0x05; /* only map 64k VGA memory !!!! */ 337 par->Graphics[7] = 0x0F; 338 par->Graphics[8] = 0xFF; 339 340 341 par->Attribute[0] = 0x00; /* standard colormap translation */ 342 par->Attribute[1] = 0x01; 343 par->Attribute[2] = 0x02; 344 par->Attribute[3] = 0x03; 345 par->Attribute[4] = 0x04; 346 par->Attribute[5] = 0x05; 347 par->Attribute[6] = 0x06; 348 par->Attribute[7] = 0x07; 349 par->Attribute[8] = 0x08; 350 par->Attribute[9] = 0x09; 351 par->Attribute[10] = 0x0A; 352 par->Attribute[11] = 0x0B; 353 par->Attribute[12] = 0x0C; 354 par->Attribute[13] = 0x0D; 355 par->Attribute[14] = 0x0E; 356 par->Attribute[15] = 0x0F; 357 par->Attribute[16] = 0x41; 358 par->Attribute[17] = 0xFF; 359 par->Attribute[18] = 0x0F; 360 par->Attribute[19] = 0x00; 361 par->Attribute[20] = 0x00; 362 return 0; 363 } 364 365 static void vgaHWLock(struct vgastate *state) 366 { 367 /* Protect CRTC[0-7] */ 368 vga_wcrt(state->vgabase, 0x11, vga_rcrt(state->vgabase, 0x11) | 0x80); 369 } 370 371 static void vgaHWUnlock(void) 372 { 373 /* Unprotect CRTC[0-7] */ 374 vga_wcrt(NULL, 0x11, vga_rcrt(NULL, 0x11) & ~0x80); 375 } 376 377 static void neoLock(struct vgastate *state) 378 { 379 vga_wgfx(state->vgabase, 0x09, 0x00); 380 vgaHWLock(state); 381 } 382 383 static void neoUnlock(void) 384 { 385 vgaHWUnlock(); 386 vga_wgfx(NULL, 0x09, 0x26); 387 } 388 389 /* 390 * VGA Palette management 391 */ 392 static int paletteEnabled = 0; 393 394 static inline void VGAenablePalette(void) 395 { 396 vga_r(NULL, VGA_IS1_RC); 397 vga_w(NULL, VGA_ATT_W, 0x00); 398 paletteEnabled = 1; 399 } 400 401 static inline void VGAdisablePalette(void) 402 { 403 vga_r(NULL, VGA_IS1_RC); 404 vga_w(NULL, VGA_ATT_W, 0x20); 405 paletteEnabled = 0; 406 } 407 408 static inline void VGAwATTR(u8 index, u8 value) 409 { 410 if (paletteEnabled) 411 index &= ~0x20; 412 else 413 index |= 0x20; 414 415 vga_r(NULL, VGA_IS1_RC); 416 vga_wattr(NULL, index, value); 417 } 418 419 static void vgaHWProtect(int on) 420 { 421 unsigned char tmp; 422 423 tmp = vga_rseq(NULL, 0x01); 424 if (on) { 425 /* 426 * Turn off screen and disable sequencer. 427 */ 428 vga_wseq(NULL, 0x00, 0x01); /* Synchronous Reset */ 429 vga_wseq(NULL, 0x01, tmp | 0x20); /* disable the display */ 430 431 VGAenablePalette(); 432 } else { 433 /* 434 * Reenable sequencer, then turn on screen. 435 */ 436 vga_wseq(NULL, 0x01, tmp & ~0x20); /* reenable display */ 437 vga_wseq(NULL, 0x00, 0x03); /* clear synchronousreset */ 438 439 VGAdisablePalette(); 440 } 441 } 442 443 static void vgaHWRestore(const struct fb_info *info, 444 const struct neofb_par *par) 445 { 446 int i; 447 448 vga_w(NULL, VGA_MIS_W, par->MiscOutReg); 449 450 for (i = 1; i < 5; i++) 451 vga_wseq(NULL, i, par->Sequencer[i]); 452 453 /* Ensure CRTC registers 0-7 are unlocked by clearing bit 7 or CRTC[17] */ 454 vga_wcrt(NULL, 17, par->CRTC[17] & ~0x80); 455 456 for (i = 0; i < 25; i++) 457 vga_wcrt(NULL, i, par->CRTC[i]); 458 459 for (i = 0; i < 9; i++) 460 vga_wgfx(NULL, i, par->Graphics[i]); 461 462 VGAenablePalette(); 463 464 for (i = 0; i < 21; i++) 465 VGAwATTR(i, par->Attribute[i]); 466 467 VGAdisablePalette(); 468 } 469 470 471 /* -------------------- Hardware specific routines ------------------------- */ 472 473 /* 474 * Hardware Acceleration for Neo2200+ 475 */ 476 static inline int neo2200_sync(struct fb_info *info) 477 { 478 struct neofb_par *par = info->par; 479 480 while (readl(&par->neo2200->bltStat) & 1) 481 cpu_relax(); 482 return 0; 483 } 484 485 static inline void neo2200_wait_fifo(struct fb_info *info, 486 int requested_fifo_space) 487 { 488 // ndev->neo.waitfifo_calls++; 489 // ndev->neo.waitfifo_sum += requested_fifo_space; 490 491 /* FIXME: does not work 492 if (neo_fifo_space < requested_fifo_space) 493 { 494 neo_fifo_waitcycles++; 495 496 while (1) 497 { 498 neo_fifo_space = (neo2200->bltStat >> 8); 499 if (neo_fifo_space >= requested_fifo_space) 500 break; 501 } 502 } 503 else 504 { 505 neo_fifo_cache_hits++; 506 } 507 508 neo_fifo_space -= requested_fifo_space; 509 */ 510 511 neo2200_sync(info); 512 } 513 514 static inline void neo2200_accel_init(struct fb_info *info, 515 struct fb_var_screeninfo *var) 516 { 517 struct neofb_par *par = info->par; 518 Neo2200 __iomem *neo2200 = par->neo2200; 519 u32 bltMod, pitch; 520 521 neo2200_sync(info); 522 523 switch (var->bits_per_pixel) { 524 case 8: 525 bltMod = NEO_MODE1_DEPTH8; 526 pitch = var->xres_virtual; 527 break; 528 case 15: 529 case 16: 530 bltMod = NEO_MODE1_DEPTH16; 531 pitch = var->xres_virtual * 2; 532 break; 533 case 24: 534 bltMod = NEO_MODE1_DEPTH24; 535 pitch = var->xres_virtual * 3; 536 break; 537 default: 538 printk(KERN_ERR 539 "neofb: neo2200_accel_init: unexpected bits per pixel!\n"); 540 return; 541 } 542 543 writel(bltMod << 16, &neo2200->bltStat); 544 writel((pitch << 16) | pitch, &neo2200->pitch); 545 } 546 547 /* --------------------------------------------------------------------- */ 548 549 static int 550 neofb_open(struct fb_info *info, int user) 551 { 552 struct neofb_par *par = info->par; 553 554 if (!par->ref_count) { 555 memset(&par->state, 0, sizeof(struct vgastate)); 556 par->state.flags = VGA_SAVE_MODE | VGA_SAVE_FONTS; 557 save_vga(&par->state); 558 } 559 par->ref_count++; 560 561 return 0; 562 } 563 564 static int 565 neofb_release(struct fb_info *info, int user) 566 { 567 struct neofb_par *par = info->par; 568 569 if (!par->ref_count) 570 return -EINVAL; 571 572 if (par->ref_count == 1) { 573 restore_vga(&par->state); 574 } 575 par->ref_count--; 576 577 return 0; 578 } 579 580 static int 581 neofb_check_var(struct fb_var_screeninfo *var, struct fb_info *info) 582 { 583 struct neofb_par *par = info->par; 584 int memlen, vramlen; 585 int mode_ok = 0; 586 587 DBG("neofb_check_var"); 588 589 if (PICOS2KHZ(var->pixclock) > par->maxClock) 590 return -EINVAL; 591 592 /* Is the mode larger than the LCD panel? */ 593 if (par->internal_display && 594 ((var->xres > par->NeoPanelWidth) || 595 (var->yres > par->NeoPanelHeight))) { 596 printk(KERN_INFO 597 "Mode (%dx%d) larger than the LCD panel (%dx%d)\n", 598 var->xres, var->yres, par->NeoPanelWidth, 599 par->NeoPanelHeight); 600 return -EINVAL; 601 } 602 603 /* Is the mode one of the acceptable sizes? */ 604 if (!par->internal_display) 605 mode_ok = 1; 606 else { 607 switch (var->xres) { 608 case 1280: 609 if (var->yres == 1024) 610 mode_ok = 1; 611 break; 612 case 1024: 613 if (var->yres == 768) 614 mode_ok = 1; 615 break; 616 case 800: 617 if (var->yres == (par->libretto ? 480 : 600)) 618 mode_ok = 1; 619 break; 620 case 640: 621 if (var->yres == 480) 622 mode_ok = 1; 623 break; 624 } 625 } 626 627 if (!mode_ok) { 628 printk(KERN_INFO 629 "Mode (%dx%d) won't display properly on LCD\n", 630 var->xres, var->yres); 631 return -EINVAL; 632 } 633 634 var->red.msb_right = 0; 635 var->green.msb_right = 0; 636 var->blue.msb_right = 0; 637 var->transp.msb_right = 0; 638 639 var->transp.offset = 0; 640 var->transp.length = 0; 641 switch (var->bits_per_pixel) { 642 case 8: /* PSEUDOCOLOUR, 256 */ 643 var->red.offset = 0; 644 var->red.length = 8; 645 var->green.offset = 0; 646 var->green.length = 8; 647 var->blue.offset = 0; 648 var->blue.length = 8; 649 break; 650 651 case 16: /* DIRECTCOLOUR, 64k */ 652 var->red.offset = 11; 653 var->red.length = 5; 654 var->green.offset = 5; 655 var->green.length = 6; 656 var->blue.offset = 0; 657 var->blue.length = 5; 658 break; 659 660 case 24: /* TRUECOLOUR, 16m */ 661 var->red.offset = 16; 662 var->red.length = 8; 663 var->green.offset = 8; 664 var->green.length = 8; 665 var->blue.offset = 0; 666 var->blue.length = 8; 667 break; 668 669 #ifdef NO_32BIT_SUPPORT_YET 670 case 32: /* TRUECOLOUR, 16m */ 671 var->transp.offset = 24; 672 var->transp.length = 8; 673 var->red.offset = 16; 674 var->red.length = 8; 675 var->green.offset = 8; 676 var->green.length = 8; 677 var->blue.offset = 0; 678 var->blue.length = 8; 679 break; 680 #endif 681 default: 682 printk(KERN_WARNING "neofb: no support for %dbpp\n", 683 var->bits_per_pixel); 684 return -EINVAL; 685 } 686 687 vramlen = info->fix.smem_len; 688 if (vramlen > 4 * 1024 * 1024) 689 vramlen = 4 * 1024 * 1024; 690 691 if (var->xres_virtual < var->xres) 692 var->xres_virtual = var->xres; 693 694 memlen = var->xres_virtual * var->bits_per_pixel * var->yres_virtual >> 3; 695 696 if (memlen > vramlen) { 697 var->yres_virtual = vramlen * 8 / (var->xres_virtual * 698 var->bits_per_pixel); 699 memlen = var->xres_virtual * var->bits_per_pixel * 700 var->yres_virtual / 8; 701 } 702 703 /* we must round yres/xres down, we already rounded y/xres_virtual up 704 if it was possible. We should return -EINVAL, but I disagree */ 705 if (var->yres_virtual < var->yres) 706 var->yres = var->yres_virtual; 707 if (var->xoffset + var->xres > var->xres_virtual) 708 var->xoffset = var->xres_virtual - var->xres; 709 if (var->yoffset + var->yres > var->yres_virtual) 710 var->yoffset = var->yres_virtual - var->yres; 711 712 var->nonstd = 0; 713 var->height = -1; 714 var->width = -1; 715 716 if (var->bits_per_pixel >= 24 || !par->neo2200) 717 var->accel_flags &= ~FB_ACCELF_TEXT; 718 return 0; 719 } 720 721 static int neofb_set_par(struct fb_info *info) 722 { 723 struct neofb_par *par = info->par; 724 unsigned char temp; 725 int i, clock_hi = 0; 726 int lcd_stretch; 727 int hoffset, voffset; 728 int vsync_start, vtotal; 729 730 DBG("neofb_set_par"); 731 732 neoUnlock(); 733 734 vgaHWProtect(1); /* Blank the screen */ 735 736 vsync_start = info->var.yres + info->var.lower_margin; 737 vtotal = vsync_start + info->var.vsync_len + info->var.upper_margin; 738 739 /* 740 * This will allocate the datastructure and initialize all of the 741 * generic VGA registers. 742 */ 743 744 if (vgaHWInit(&info->var, par)) 745 return -EINVAL; 746 747 /* 748 * The default value assigned by vgaHW.c is 0x41, but this does 749 * not work for NeoMagic. 750 */ 751 par->Attribute[16] = 0x01; 752 753 switch (info->var.bits_per_pixel) { 754 case 8: 755 par->CRTC[0x13] = info->var.xres_virtual >> 3; 756 par->ExtCRTOffset = info->var.xres_virtual >> 11; 757 par->ExtColorModeSelect = 0x11; 758 break; 759 case 16: 760 par->CRTC[0x13] = info->var.xres_virtual >> 2; 761 par->ExtCRTOffset = info->var.xres_virtual >> 10; 762 par->ExtColorModeSelect = 0x13; 763 break; 764 case 24: 765 par->CRTC[0x13] = (info->var.xres_virtual * 3) >> 3; 766 par->ExtCRTOffset = (info->var.xres_virtual * 3) >> 11; 767 par->ExtColorModeSelect = 0x14; 768 break; 769 #ifdef NO_32BIT_SUPPORT_YET 770 case 32: /* FIXME: guessed values */ 771 par->CRTC[0x13] = info->var.xres_virtual >> 1; 772 par->ExtCRTOffset = info->var.xres_virtual >> 9; 773 par->ExtColorModeSelect = 0x15; 774 break; 775 #endif 776 default: 777 break; 778 } 779 780 par->ExtCRTDispAddr = 0x10; 781 782 /* Vertical Extension */ 783 par->VerticalExt = (((vtotal - 2) & 0x400) >> 10) 784 | (((info->var.yres - 1) & 0x400) >> 9) 785 | (((vsync_start) & 0x400) >> 8) 786 | (((vsync_start) & 0x400) >> 7); 787 788 /* Fast write bursts on unless disabled. */ 789 if (par->pci_burst) 790 par->SysIfaceCntl1 = 0x30; 791 else 792 par->SysIfaceCntl1 = 0x00; 793 794 par->SysIfaceCntl2 = 0xc0; /* VESA Bios sets this to 0x80! */ 795 796 /* Initialize: by default, we want display config register to be read */ 797 par->PanelDispCntlRegRead = 1; 798 799 /* Enable any user specified display devices. */ 800 par->PanelDispCntlReg1 = 0x00; 801 if (par->internal_display) 802 par->PanelDispCntlReg1 |= 0x02; 803 if (par->external_display) 804 par->PanelDispCntlReg1 |= 0x01; 805 806 /* If the user did not specify any display devices, then... */ 807 if (par->PanelDispCntlReg1 == 0x00) { 808 /* Default to internal (i.e., LCD) only. */ 809 par->PanelDispCntlReg1 = vga_rgfx(NULL, 0x20) & 0x03; 810 } 811 812 /* If we are using a fixed mode, then tell the chip we are. */ 813 switch (info->var.xres) { 814 case 1280: 815 par->PanelDispCntlReg1 |= 0x60; 816 break; 817 case 1024: 818 par->PanelDispCntlReg1 |= 0x40; 819 break; 820 case 800: 821 par->PanelDispCntlReg1 |= 0x20; 822 break; 823 case 640: 824 default: 825 break; 826 } 827 828 /* Setup shadow register locking. */ 829 switch (par->PanelDispCntlReg1 & 0x03) { 830 case 0x01: /* External CRT only mode: */ 831 par->GeneralLockReg = 0x00; 832 /* We need to program the VCLK for external display only mode. */ 833 par->ProgramVCLK = 1; 834 break; 835 case 0x02: /* Internal LCD only mode: */ 836 case 0x03: /* Simultaneous internal/external (LCD/CRT) mode: */ 837 par->GeneralLockReg = 0x01; 838 /* Don't program the VCLK when using the LCD. */ 839 par->ProgramVCLK = 0; 840 break; 841 } 842 843 /* 844 * If the screen is to be stretched, turn on stretching for the 845 * various modes. 846 * 847 * OPTION_LCD_STRETCH means stretching should be turned off! 848 */ 849 par->PanelDispCntlReg2 = 0x00; 850 par->PanelDispCntlReg3 = 0x00; 851 852 if (par->lcd_stretch && (par->PanelDispCntlReg1 == 0x02) && /* LCD only */ 853 (info->var.xres != par->NeoPanelWidth)) { 854 switch (info->var.xres) { 855 case 320: /* Needs testing. KEM -- 24 May 98 */ 856 case 400: /* Needs testing. KEM -- 24 May 98 */ 857 case 640: 858 case 800: 859 case 1024: 860 lcd_stretch = 1; 861 par->PanelDispCntlReg2 |= 0xC6; 862 break; 863 default: 864 lcd_stretch = 0; 865 /* No stretching in these modes. */ 866 } 867 } else 868 lcd_stretch = 0; 869 870 /* 871 * If the screen is to be centerd, turn on the centering for the 872 * various modes. 873 */ 874 par->PanelVertCenterReg1 = 0x00; 875 par->PanelVertCenterReg2 = 0x00; 876 par->PanelVertCenterReg3 = 0x00; 877 par->PanelVertCenterReg4 = 0x00; 878 par->PanelVertCenterReg5 = 0x00; 879 par->PanelHorizCenterReg1 = 0x00; 880 par->PanelHorizCenterReg2 = 0x00; 881 par->PanelHorizCenterReg3 = 0x00; 882 par->PanelHorizCenterReg4 = 0x00; 883 par->PanelHorizCenterReg5 = 0x00; 884 885 886 if (par->PanelDispCntlReg1 & 0x02) { 887 if (info->var.xres == par->NeoPanelWidth) { 888 /* 889 * No centering required when the requested display width 890 * equals the panel width. 891 */ 892 } else { 893 par->PanelDispCntlReg2 |= 0x01; 894 par->PanelDispCntlReg3 |= 0x10; 895 896 /* Calculate the horizontal and vertical offsets. */ 897 if (!lcd_stretch) { 898 hoffset = 899 ((par->NeoPanelWidth - 900 info->var.xres) >> 4) - 1; 901 voffset = 902 ((par->NeoPanelHeight - 903 info->var.yres) >> 1) - 2; 904 } else { 905 /* Stretched modes cannot be centered. */ 906 hoffset = 0; 907 voffset = 0; 908 } 909 910 switch (info->var.xres) { 911 case 320: /* Needs testing. KEM -- 24 May 98 */ 912 par->PanelHorizCenterReg3 = hoffset; 913 par->PanelVertCenterReg2 = voffset; 914 break; 915 case 400: /* Needs testing. KEM -- 24 May 98 */ 916 par->PanelHorizCenterReg4 = hoffset; 917 par->PanelVertCenterReg1 = voffset; 918 break; 919 case 640: 920 par->PanelHorizCenterReg1 = hoffset; 921 par->PanelVertCenterReg3 = voffset; 922 break; 923 case 800: 924 par->PanelHorizCenterReg2 = hoffset; 925 par->PanelVertCenterReg4 = voffset; 926 break; 927 case 1024: 928 par->PanelHorizCenterReg5 = hoffset; 929 par->PanelVertCenterReg5 = voffset; 930 break; 931 case 1280: 932 default: 933 /* No centering in these modes. */ 934 break; 935 } 936 } 937 } 938 939 par->biosMode = 940 neoFindMode(info->var.xres, info->var.yres, 941 info->var.bits_per_pixel); 942 943 /* 944 * Calculate the VCLK that most closely matches the requested dot 945 * clock. 946 */ 947 neoCalcVCLK(info, par, PICOS2KHZ(info->var.pixclock)); 948 949 /* Since we program the clocks ourselves, always use VCLK3. */ 950 par->MiscOutReg |= 0x0C; 951 952 /* alread unlocked above */ 953 /* BOGUS vga_wgfx(NULL, 0x09, 0x26); */ 954 955 /* don't know what this is, but it's 0 from bootup anyway */ 956 vga_wgfx(NULL, 0x15, 0x00); 957 958 /* was set to 0x01 by my bios in text and vesa modes */ 959 vga_wgfx(NULL, 0x0A, par->GeneralLockReg); 960 961 /* 962 * The color mode needs to be set before calling vgaHWRestore 963 * to ensure the DAC is initialized properly. 964 * 965 * NOTE: Make sure we don't change bits make sure we don't change 966 * any reserved bits. 967 */ 968 temp = vga_rgfx(NULL, 0x90); 969 switch (info->fix.accel) { 970 case FB_ACCEL_NEOMAGIC_NM2070: 971 temp &= 0xF0; /* Save bits 7:4 */ 972 temp |= (par->ExtColorModeSelect & ~0xF0); 973 break; 974 case FB_ACCEL_NEOMAGIC_NM2090: 975 case FB_ACCEL_NEOMAGIC_NM2093: 976 case FB_ACCEL_NEOMAGIC_NM2097: 977 case FB_ACCEL_NEOMAGIC_NM2160: 978 case FB_ACCEL_NEOMAGIC_NM2200: 979 case FB_ACCEL_NEOMAGIC_NM2230: 980 case FB_ACCEL_NEOMAGIC_NM2360: 981 case FB_ACCEL_NEOMAGIC_NM2380: 982 temp &= 0x70; /* Save bits 6:4 */ 983 temp |= (par->ExtColorModeSelect & ~0x70); 984 break; 985 } 986 987 vga_wgfx(NULL, 0x90, temp); 988 989 /* 990 * In some rare cases a lockup might occur if we don't delay 991 * here. (Reported by Miles Lane) 992 */ 993 //mdelay(200); 994 995 /* 996 * Disable horizontal and vertical graphics and text expansions so 997 * that vgaHWRestore works properly. 998 */ 999 temp = vga_rgfx(NULL, 0x25); 1000 temp &= 0x39; 1001 vga_wgfx(NULL, 0x25, temp); 1002 1003 /* 1004 * Sleep for 200ms to make sure that the two operations above have 1005 * had time to take effect. 1006 */ 1007 mdelay(200); 1008 1009 /* 1010 * This function handles restoring the generic VGA registers. */ 1011 vgaHWRestore(info, par); 1012 1013 /* linear colormap for non palettized modes */ 1014 switch (info->var.bits_per_pixel) { 1015 case 8: 1016 /* PseudoColor, 256 */ 1017 info->fix.visual = FB_VISUAL_PSEUDOCOLOR; 1018 break; 1019 case 16: 1020 /* TrueColor, 64k */ 1021 info->fix.visual = FB_VISUAL_TRUECOLOR; 1022 1023 for (i = 0; i < 64; i++) { 1024 outb(i, 0x3c8); 1025 1026 outb(i << 1, 0x3c9); 1027 outb(i, 0x3c9); 1028 outb(i << 1, 0x3c9); 1029 } 1030 break; 1031 case 24: 1032 #ifdef NO_32BIT_SUPPORT_YET 1033 case 32: 1034 #endif 1035 /* TrueColor, 16m */ 1036 info->fix.visual = FB_VISUAL_TRUECOLOR; 1037 1038 for (i = 0; i < 256; i++) { 1039 outb(i, 0x3c8); 1040 1041 outb(i, 0x3c9); 1042 outb(i, 0x3c9); 1043 outb(i, 0x3c9); 1044 } 1045 break; 1046 } 1047 1048 vga_wgfx(NULL, 0x0E, par->ExtCRTDispAddr); 1049 vga_wgfx(NULL, 0x0F, par->ExtCRTOffset); 1050 temp = vga_rgfx(NULL, 0x10); 1051 temp &= 0x0F; /* Save bits 3:0 */ 1052 temp |= (par->SysIfaceCntl1 & ~0x0F); /* VESA Bios sets bit 1! */ 1053 vga_wgfx(NULL, 0x10, temp); 1054 1055 vga_wgfx(NULL, 0x11, par->SysIfaceCntl2); 1056 vga_wgfx(NULL, 0x15, 0 /*par->SingleAddrPage */ ); 1057 vga_wgfx(NULL, 0x16, 0 /*par->DualAddrPage */ ); 1058 1059 temp = vga_rgfx(NULL, 0x20); 1060 switch (info->fix.accel) { 1061 case FB_ACCEL_NEOMAGIC_NM2070: 1062 temp &= 0xFC; /* Save bits 7:2 */ 1063 temp |= (par->PanelDispCntlReg1 & ~0xFC); 1064 break; 1065 case FB_ACCEL_NEOMAGIC_NM2090: 1066 case FB_ACCEL_NEOMAGIC_NM2093: 1067 case FB_ACCEL_NEOMAGIC_NM2097: 1068 case FB_ACCEL_NEOMAGIC_NM2160: 1069 temp &= 0xDC; /* Save bits 7:6,4:2 */ 1070 temp |= (par->PanelDispCntlReg1 & ~0xDC); 1071 break; 1072 case FB_ACCEL_NEOMAGIC_NM2200: 1073 case FB_ACCEL_NEOMAGIC_NM2230: 1074 case FB_ACCEL_NEOMAGIC_NM2360: 1075 case FB_ACCEL_NEOMAGIC_NM2380: 1076 temp &= 0x98; /* Save bits 7,4:3 */ 1077 temp |= (par->PanelDispCntlReg1 & ~0x98); 1078 break; 1079 } 1080 vga_wgfx(NULL, 0x20, temp); 1081 1082 temp = vga_rgfx(NULL, 0x25); 1083 temp &= 0x38; /* Save bits 5:3 */ 1084 temp |= (par->PanelDispCntlReg2 & ~0x38); 1085 vga_wgfx(NULL, 0x25, temp); 1086 1087 if (info->fix.accel != FB_ACCEL_NEOMAGIC_NM2070) { 1088 temp = vga_rgfx(NULL, 0x30); 1089 temp &= 0xEF; /* Save bits 7:5 and bits 3:0 */ 1090 temp |= (par->PanelDispCntlReg3 & ~0xEF); 1091 vga_wgfx(NULL, 0x30, temp); 1092 } 1093 1094 vga_wgfx(NULL, 0x28, par->PanelVertCenterReg1); 1095 vga_wgfx(NULL, 0x29, par->PanelVertCenterReg2); 1096 vga_wgfx(NULL, 0x2a, par->PanelVertCenterReg3); 1097 1098 if (info->fix.accel != FB_ACCEL_NEOMAGIC_NM2070) { 1099 vga_wgfx(NULL, 0x32, par->PanelVertCenterReg4); 1100 vga_wgfx(NULL, 0x33, par->PanelHorizCenterReg1); 1101 vga_wgfx(NULL, 0x34, par->PanelHorizCenterReg2); 1102 vga_wgfx(NULL, 0x35, par->PanelHorizCenterReg3); 1103 } 1104 1105 if (info->fix.accel == FB_ACCEL_NEOMAGIC_NM2160) 1106 vga_wgfx(NULL, 0x36, par->PanelHorizCenterReg4); 1107 1108 if (info->fix.accel == FB_ACCEL_NEOMAGIC_NM2200 || 1109 info->fix.accel == FB_ACCEL_NEOMAGIC_NM2230 || 1110 info->fix.accel == FB_ACCEL_NEOMAGIC_NM2360 || 1111 info->fix.accel == FB_ACCEL_NEOMAGIC_NM2380) { 1112 vga_wgfx(NULL, 0x36, par->PanelHorizCenterReg4); 1113 vga_wgfx(NULL, 0x37, par->PanelVertCenterReg5); 1114 vga_wgfx(NULL, 0x38, par->PanelHorizCenterReg5); 1115 1116 clock_hi = 1; 1117 } 1118 1119 /* Program VCLK3 if needed. */ 1120 if (par->ProgramVCLK && ((vga_rgfx(NULL, 0x9B) != par->VCLK3NumeratorLow) 1121 || (vga_rgfx(NULL, 0x9F) != par->VCLK3Denominator) 1122 || (clock_hi && ((vga_rgfx(NULL, 0x8F) & ~0x0f) 1123 != (par->VCLK3NumeratorHigh & 1124 ~0x0F))))) { 1125 vga_wgfx(NULL, 0x9B, par->VCLK3NumeratorLow); 1126 if (clock_hi) { 1127 temp = vga_rgfx(NULL, 0x8F); 1128 temp &= 0x0F; /* Save bits 3:0 */ 1129 temp |= (par->VCLK3NumeratorHigh & ~0x0F); 1130 vga_wgfx(NULL, 0x8F, temp); 1131 } 1132 vga_wgfx(NULL, 0x9F, par->VCLK3Denominator); 1133 } 1134 1135 if (par->biosMode) 1136 vga_wcrt(NULL, 0x23, par->biosMode); 1137 1138 vga_wgfx(NULL, 0x93, 0xc0); /* Gives 5x faster framebuffer writes !!! */ 1139 1140 /* Program vertical extension register */ 1141 if (info->fix.accel == FB_ACCEL_NEOMAGIC_NM2200 || 1142 info->fix.accel == FB_ACCEL_NEOMAGIC_NM2230 || 1143 info->fix.accel == FB_ACCEL_NEOMAGIC_NM2360 || 1144 info->fix.accel == FB_ACCEL_NEOMAGIC_NM2380) { 1145 vga_wcrt(NULL, 0x70, par->VerticalExt); 1146 } 1147 1148 vgaHWProtect(0); /* Turn on screen */ 1149 1150 /* Calling this also locks offset registers required in update_start */ 1151 neoLock(&par->state); 1152 1153 info->fix.line_length = 1154 info->var.xres_virtual * (info->var.bits_per_pixel >> 3); 1155 1156 switch (info->fix.accel) { 1157 case FB_ACCEL_NEOMAGIC_NM2200: 1158 case FB_ACCEL_NEOMAGIC_NM2230: 1159 case FB_ACCEL_NEOMAGIC_NM2360: 1160 case FB_ACCEL_NEOMAGIC_NM2380: 1161 neo2200_accel_init(info, &info->var); 1162 break; 1163 default: 1164 break; 1165 } 1166 return 0; 1167 } 1168 1169 /* 1170 * Pan or Wrap the Display 1171 */ 1172 static int neofb_pan_display(struct fb_var_screeninfo *var, 1173 struct fb_info *info) 1174 { 1175 struct neofb_par *par = info->par; 1176 struct vgastate *state = &par->state; 1177 int oldExtCRTDispAddr; 1178 int Base; 1179 1180 DBG("neofb_update_start"); 1181 1182 Base = (var->yoffset * info->var.xres_virtual + var->xoffset) >> 2; 1183 Base *= (info->var.bits_per_pixel + 7) / 8; 1184 1185 neoUnlock(); 1186 1187 /* 1188 * These are the generic starting address registers. 1189 */ 1190 vga_wcrt(state->vgabase, 0x0C, (Base & 0x00FF00) >> 8); 1191 vga_wcrt(state->vgabase, 0x0D, (Base & 0x00FF)); 1192 1193 /* 1194 * Make sure we don't clobber some other bits that might already 1195 * have been set. NOTE: NM2200 has a writable bit 3, but it shouldn't 1196 * be needed. 1197 */ 1198 oldExtCRTDispAddr = vga_rgfx(NULL, 0x0E); 1199 vga_wgfx(state->vgabase, 0x0E, (((Base >> 16) & 0x0f) | (oldExtCRTDispAddr & 0xf0))); 1200 1201 neoLock(state); 1202 1203 return 0; 1204 } 1205 1206 static int neofb_setcolreg(u_int regno, u_int red, u_int green, u_int blue, 1207 u_int transp, struct fb_info *fb) 1208 { 1209 if (regno >= fb->cmap.len || regno > 255) 1210 return -EINVAL; 1211 1212 if (fb->var.bits_per_pixel <= 8) { 1213 outb(regno, 0x3c8); 1214 1215 outb(red >> 10, 0x3c9); 1216 outb(green >> 10, 0x3c9); 1217 outb(blue >> 10, 0x3c9); 1218 } else if (regno < 16) { 1219 switch (fb->var.bits_per_pixel) { 1220 case 16: 1221 ((u32 *) fb->pseudo_palette)[regno] = 1222 ((red & 0xf800)) | ((green & 0xfc00) >> 5) | 1223 ((blue & 0xf800) >> 11); 1224 break; 1225 case 24: 1226 ((u32 *) fb->pseudo_palette)[regno] = 1227 ((red & 0xff00) << 8) | ((green & 0xff00)) | 1228 ((blue & 0xff00) >> 8); 1229 break; 1230 #ifdef NO_32BIT_SUPPORT_YET 1231 case 32: 1232 ((u32 *) fb->pseudo_palette)[regno] = 1233 ((transp & 0xff00) << 16) | ((red & 0xff00) << 8) | 1234 ((green & 0xff00)) | ((blue & 0xff00) >> 8); 1235 break; 1236 #endif 1237 default: 1238 return 1; 1239 } 1240 } 1241 1242 return 0; 1243 } 1244 1245 /* 1246 * (Un)Blank the display. 1247 */ 1248 static int neofb_blank(int blank_mode, struct fb_info *info) 1249 { 1250 /* 1251 * Blank the screen if blank_mode != 0, else unblank. 1252 * Return 0 if blanking succeeded, != 0 if un-/blanking failed due to 1253 * e.g. a video mode which doesn't support it. Implements VESA suspend 1254 * and powerdown modes for monitors, and backlight control on LCDs. 1255 * blank_mode == 0: unblanked (backlight on) 1256 * blank_mode == 1: blank (backlight on) 1257 * blank_mode == 2: suspend vsync (backlight off) 1258 * blank_mode == 3: suspend hsync (backlight off) 1259 * blank_mode == 4: powerdown (backlight off) 1260 * 1261 * wms...Enable VESA DPMS compatible powerdown mode 1262 * run "setterm -powersave powerdown" to take advantage 1263 */ 1264 struct neofb_par *par = info->par; 1265 int seqflags, lcdflags, dpmsflags, reg, tmpdisp; 1266 1267 /* 1268 * Read back the register bits related to display configuration. They might 1269 * have been changed underneath the driver via Fn key stroke. 1270 */ 1271 neoUnlock(); 1272 tmpdisp = vga_rgfx(NULL, 0x20) & 0x03; 1273 neoLock(&par->state); 1274 1275 /* In case we blank the screen, we want to store the possibly new 1276 * configuration in the driver. During un-blank, we re-apply this setting, 1277 * since the LCD bit will be cleared in order to switch off the backlight. 1278 */ 1279 if (par->PanelDispCntlRegRead) { 1280 par->PanelDispCntlReg1 = tmpdisp; 1281 } 1282 par->PanelDispCntlRegRead = !blank_mode; 1283 1284 switch (blank_mode) { 1285 case FB_BLANK_POWERDOWN: /* powerdown - both sync lines down */ 1286 seqflags = VGA_SR01_SCREEN_OFF; /* Disable sequencer */ 1287 lcdflags = 0; /* LCD off */ 1288 dpmsflags = NEO_GR01_SUPPRESS_HSYNC | 1289 NEO_GR01_SUPPRESS_VSYNC; 1290 #ifdef CONFIG_TOSHIBA 1291 /* Do we still need this ? */ 1292 /* attempt to turn off backlight on toshiba; also turns off external */ 1293 { 1294 SMMRegisters regs; 1295 1296 regs.eax = 0xff00; /* HCI_SET */ 1297 regs.ebx = 0x0002; /* HCI_BACKLIGHT */ 1298 regs.ecx = 0x0000; /* HCI_DISABLE */ 1299 tosh_smm(®s); 1300 } 1301 #endif 1302 break; 1303 case FB_BLANK_HSYNC_SUSPEND: /* hsync off */ 1304 seqflags = VGA_SR01_SCREEN_OFF; /* Disable sequencer */ 1305 lcdflags = 0; /* LCD off */ 1306 dpmsflags = NEO_GR01_SUPPRESS_HSYNC; 1307 break; 1308 case FB_BLANK_VSYNC_SUSPEND: /* vsync off */ 1309 seqflags = VGA_SR01_SCREEN_OFF; /* Disable sequencer */ 1310 lcdflags = 0; /* LCD off */ 1311 dpmsflags = NEO_GR01_SUPPRESS_VSYNC; 1312 break; 1313 case FB_BLANK_NORMAL: /* just blank screen (backlight stays on) */ 1314 seqflags = VGA_SR01_SCREEN_OFF; /* Disable sequencer */ 1315 /* 1316 * During a blank operation with the LID shut, we might store "LCD off" 1317 * by mistake. Due to timing issues, the BIOS may switch the lights 1318 * back on, and we turn it back off once we "unblank". 1319 * 1320 * So here is an attempt to implement ">=" - if we are in the process 1321 * of unblanking, and the LCD bit is unset in the driver but set in the 1322 * register, we must keep it. 1323 */ 1324 lcdflags = ((par->PanelDispCntlReg1 | tmpdisp) & 0x02); /* LCD normal */ 1325 dpmsflags = 0x00; /* no hsync/vsync suppression */ 1326 break; 1327 case FB_BLANK_UNBLANK: /* unblank */ 1328 seqflags = 0; /* Enable sequencer */ 1329 lcdflags = ((par->PanelDispCntlReg1 | tmpdisp) & 0x02); /* LCD normal */ 1330 dpmsflags = 0x00; /* no hsync/vsync suppression */ 1331 #ifdef CONFIG_TOSHIBA 1332 /* Do we still need this ? */ 1333 /* attempt to re-enable backlight/external on toshiba */ 1334 { 1335 SMMRegisters regs; 1336 1337 regs.eax = 0xff00; /* HCI_SET */ 1338 regs.ebx = 0x0002; /* HCI_BACKLIGHT */ 1339 regs.ecx = 0x0001; /* HCI_ENABLE */ 1340 tosh_smm(®s); 1341 } 1342 #endif 1343 break; 1344 default: /* Anything else we don't understand; return 1 to tell 1345 * fb_blank we didn't aactually do anything */ 1346 return 1; 1347 } 1348 1349 neoUnlock(); 1350 reg = (vga_rseq(NULL, 0x01) & ~0x20) | seqflags; 1351 vga_wseq(NULL, 0x01, reg); 1352 reg = (vga_rgfx(NULL, 0x20) & ~0x02) | lcdflags; 1353 vga_wgfx(NULL, 0x20, reg); 1354 reg = (vga_rgfx(NULL, 0x01) & ~0xF0) | 0x80 | dpmsflags; 1355 vga_wgfx(NULL, 0x01, reg); 1356 neoLock(&par->state); 1357 return 0; 1358 } 1359 1360 static void 1361 neo2200_fillrect(struct fb_info *info, const struct fb_fillrect *rect) 1362 { 1363 struct neofb_par *par = info->par; 1364 u_long dst, rop; 1365 1366 dst = rect->dx + rect->dy * info->var.xres_virtual; 1367 rop = rect->rop ? 0x060000 : 0x0c0000; 1368 1369 neo2200_wait_fifo(info, 4); 1370 1371 /* set blt control */ 1372 writel(NEO_BC3_FIFO_EN | 1373 NEO_BC0_SRC_IS_FG | NEO_BC3_SKIP_MAPPING | 1374 // NEO_BC3_DST_XY_ADDR | 1375 // NEO_BC3_SRC_XY_ADDR | 1376 rop, &par->neo2200->bltCntl); 1377 1378 switch (info->var.bits_per_pixel) { 1379 case 8: 1380 writel(rect->color, &par->neo2200->fgColor); 1381 break; 1382 case 16: 1383 case 24: 1384 writel(((u32 *) (info->pseudo_palette))[rect->color], 1385 &par->neo2200->fgColor); 1386 break; 1387 } 1388 1389 writel(dst * ((info->var.bits_per_pixel + 7) >> 3), 1390 &par->neo2200->dstStart); 1391 writel((rect->height << 16) | (rect->width & 0xffff), 1392 &par->neo2200->xyExt); 1393 } 1394 1395 static void 1396 neo2200_copyarea(struct fb_info *info, const struct fb_copyarea *area) 1397 { 1398 u32 sx = area->sx, sy = area->sy, dx = area->dx, dy = area->dy; 1399 struct neofb_par *par = info->par; 1400 u_long src, dst, bltCntl; 1401 1402 bltCntl = NEO_BC3_FIFO_EN | NEO_BC3_SKIP_MAPPING | 0x0C0000; 1403 1404 if ((dy > sy) || ((dy == sy) && (dx > sx))) { 1405 /* Start with the lower right corner */ 1406 sy += (area->height - 1); 1407 dy += (area->height - 1); 1408 sx += (area->width - 1); 1409 dx += (area->width - 1); 1410 1411 bltCntl |= NEO_BC0_X_DEC | NEO_BC0_DST_Y_DEC | NEO_BC0_SRC_Y_DEC; 1412 } 1413 1414 src = sx * (info->var.bits_per_pixel >> 3) + sy*info->fix.line_length; 1415 dst = dx * (info->var.bits_per_pixel >> 3) + dy*info->fix.line_length; 1416 1417 neo2200_wait_fifo(info, 4); 1418 1419 /* set blt control */ 1420 writel(bltCntl, &par->neo2200->bltCntl); 1421 1422 writel(src, &par->neo2200->srcStart); 1423 writel(dst, &par->neo2200->dstStart); 1424 writel((area->height << 16) | (area->width & 0xffff), 1425 &par->neo2200->xyExt); 1426 } 1427 1428 static void 1429 neo2200_imageblit(struct fb_info *info, const struct fb_image *image) 1430 { 1431 struct neofb_par *par = info->par; 1432 int s_pitch = (image->width * image->depth + 7) >> 3; 1433 int scan_align = info->pixmap.scan_align - 1; 1434 int buf_align = info->pixmap.buf_align - 1; 1435 int bltCntl_flags, d_pitch, data_len; 1436 1437 // The data is padded for the hardware 1438 d_pitch = (s_pitch + scan_align) & ~scan_align; 1439 data_len = ((d_pitch * image->height) + buf_align) & ~buf_align; 1440 1441 neo2200_sync(info); 1442 1443 if (image->depth == 1) { 1444 if (info->var.bits_per_pixel == 24 && image->width < 16) { 1445 /* FIXME. There is a bug with accelerated color-expanded 1446 * transfers in 24 bit mode if the image being transferred 1447 * is less than 16 bits wide. This is due to insufficient 1448 * padding when writing the image. We need to adjust 1449 * struct fb_pixmap. Not yet done. */ 1450 cfb_imageblit(info, image); 1451 return; 1452 } 1453 bltCntl_flags = NEO_BC0_SRC_MONO; 1454 } else if (image->depth == info->var.bits_per_pixel) { 1455 bltCntl_flags = 0; 1456 } else { 1457 /* We don't currently support hardware acceleration if image 1458 * depth is different from display */ 1459 cfb_imageblit(info, image); 1460 return; 1461 } 1462 1463 switch (info->var.bits_per_pixel) { 1464 case 8: 1465 writel(image->fg_color, &par->neo2200->fgColor); 1466 writel(image->bg_color, &par->neo2200->bgColor); 1467 break; 1468 case 16: 1469 case 24: 1470 writel(((u32 *) (info->pseudo_palette))[image->fg_color], 1471 &par->neo2200->fgColor); 1472 writel(((u32 *) (info->pseudo_palette))[image->bg_color], 1473 &par->neo2200->bgColor); 1474 break; 1475 } 1476 1477 writel(NEO_BC0_SYS_TO_VID | 1478 NEO_BC3_SKIP_MAPPING | bltCntl_flags | 1479 // NEO_BC3_DST_XY_ADDR | 1480 0x0c0000, &par->neo2200->bltCntl); 1481 1482 writel(0, &par->neo2200->srcStart); 1483 // par->neo2200->dstStart = (image->dy << 16) | (image->dx & 0xffff); 1484 writel(((image->dx & 0xffff) * (info->var.bits_per_pixel >> 3) + 1485 image->dy * info->fix.line_length), &par->neo2200->dstStart); 1486 writel((image->height << 16) | (image->width & 0xffff), 1487 &par->neo2200->xyExt); 1488 1489 memcpy_toio(par->mmio_vbase + 0x100000, image->data, data_len); 1490 } 1491 1492 static void 1493 neofb_fillrect(struct fb_info *info, const struct fb_fillrect *rect) 1494 { 1495 switch (info->fix.accel) { 1496 case FB_ACCEL_NEOMAGIC_NM2200: 1497 case FB_ACCEL_NEOMAGIC_NM2230: 1498 case FB_ACCEL_NEOMAGIC_NM2360: 1499 case FB_ACCEL_NEOMAGIC_NM2380: 1500 neo2200_fillrect(info, rect); 1501 break; 1502 default: 1503 cfb_fillrect(info, rect); 1504 break; 1505 } 1506 } 1507 1508 static void 1509 neofb_copyarea(struct fb_info *info, const struct fb_copyarea *area) 1510 { 1511 switch (info->fix.accel) { 1512 case FB_ACCEL_NEOMAGIC_NM2200: 1513 case FB_ACCEL_NEOMAGIC_NM2230: 1514 case FB_ACCEL_NEOMAGIC_NM2360: 1515 case FB_ACCEL_NEOMAGIC_NM2380: 1516 neo2200_copyarea(info, area); 1517 break; 1518 default: 1519 cfb_copyarea(info, area); 1520 break; 1521 } 1522 } 1523 1524 static void 1525 neofb_imageblit(struct fb_info *info, const struct fb_image *image) 1526 { 1527 switch (info->fix.accel) { 1528 case FB_ACCEL_NEOMAGIC_NM2200: 1529 case FB_ACCEL_NEOMAGIC_NM2230: 1530 case FB_ACCEL_NEOMAGIC_NM2360: 1531 case FB_ACCEL_NEOMAGIC_NM2380: 1532 neo2200_imageblit(info, image); 1533 break; 1534 default: 1535 cfb_imageblit(info, image); 1536 break; 1537 } 1538 } 1539 1540 static int 1541 neofb_sync(struct fb_info *info) 1542 { 1543 switch (info->fix.accel) { 1544 case FB_ACCEL_NEOMAGIC_NM2200: 1545 case FB_ACCEL_NEOMAGIC_NM2230: 1546 case FB_ACCEL_NEOMAGIC_NM2360: 1547 case FB_ACCEL_NEOMAGIC_NM2380: 1548 neo2200_sync(info); 1549 break; 1550 default: 1551 break; 1552 } 1553 return 0; 1554 } 1555 1556 /* 1557 static void 1558 neofb_draw_cursor(struct fb_info *info, u8 *dst, u8 *src, unsigned int width) 1559 { 1560 //memset_io(info->sprite.addr, 0xff, 1); 1561 } 1562 1563 static int 1564 neofb_cursor(struct fb_info *info, struct fb_cursor *cursor) 1565 { 1566 struct neofb_par *par = (struct neofb_par *) info->par; 1567 1568 * Disable cursor * 1569 write_le32(NEOREG_CURSCNTL, ~NEO_CURS_ENABLE, par); 1570 1571 if (cursor->set & FB_CUR_SETPOS) { 1572 u32 x = cursor->image.dx; 1573 u32 y = cursor->image.dy; 1574 1575 info->cursor.image.dx = x; 1576 info->cursor.image.dy = y; 1577 write_le32(NEOREG_CURSX, x, par); 1578 write_le32(NEOREG_CURSY, y, par); 1579 } 1580 1581 if (cursor->set & FB_CUR_SETSIZE) { 1582 info->cursor.image.height = cursor->image.height; 1583 info->cursor.image.width = cursor->image.width; 1584 } 1585 1586 if (cursor->set & FB_CUR_SETHOT) 1587 info->cursor.hot = cursor->hot; 1588 1589 if (cursor->set & FB_CUR_SETCMAP) { 1590 if (cursor->image.depth == 1) { 1591 u32 fg = cursor->image.fg_color; 1592 u32 bg = cursor->image.bg_color; 1593 1594 info->cursor.image.fg_color = fg; 1595 info->cursor.image.bg_color = bg; 1596 1597 fg = ((fg & 0xff0000) >> 16) | ((fg & 0xff) << 16) | (fg & 0xff00); 1598 bg = ((bg & 0xff0000) >> 16) | ((bg & 0xff) << 16) | (bg & 0xff00); 1599 write_le32(NEOREG_CURSFGCOLOR, fg, par); 1600 write_le32(NEOREG_CURSBGCOLOR, bg, par); 1601 } 1602 } 1603 1604 if (cursor->set & FB_CUR_SETSHAPE) 1605 fb_load_cursor_image(info); 1606 1607 if (info->cursor.enable) 1608 write_le32(NEOREG_CURSCNTL, NEO_CURS_ENABLE, par); 1609 return 0; 1610 } 1611 */ 1612 1613 static struct fb_ops neofb_ops = { 1614 .owner = THIS_MODULE, 1615 .fb_open = neofb_open, 1616 .fb_release = neofb_release, 1617 .fb_check_var = neofb_check_var, 1618 .fb_set_par = neofb_set_par, 1619 .fb_setcolreg = neofb_setcolreg, 1620 .fb_pan_display = neofb_pan_display, 1621 .fb_blank = neofb_blank, 1622 .fb_sync = neofb_sync, 1623 .fb_fillrect = neofb_fillrect, 1624 .fb_copyarea = neofb_copyarea, 1625 .fb_imageblit = neofb_imageblit, 1626 }; 1627 1628 /* --------------------------------------------------------------------- */ 1629 1630 static struct fb_videomode mode800x480 = { 1631 .xres = 800, 1632 .yres = 480, 1633 .pixclock = 25000, 1634 .left_margin = 88, 1635 .right_margin = 40, 1636 .upper_margin = 23, 1637 .lower_margin = 1, 1638 .hsync_len = 128, 1639 .vsync_len = 4, 1640 .sync = FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, 1641 .vmode = FB_VMODE_NONINTERLACED 1642 }; 1643 1644 static int neo_map_mmio(struct fb_info *info, struct pci_dev *dev) 1645 { 1646 struct neofb_par *par = info->par; 1647 1648 DBG("neo_map_mmio"); 1649 1650 switch (info->fix.accel) { 1651 case FB_ACCEL_NEOMAGIC_NM2070: 1652 info->fix.mmio_start = pci_resource_start(dev, 0)+ 1653 0x100000; 1654 break; 1655 case FB_ACCEL_NEOMAGIC_NM2090: 1656 case FB_ACCEL_NEOMAGIC_NM2093: 1657 info->fix.mmio_start = pci_resource_start(dev, 0)+ 1658 0x200000; 1659 break; 1660 case FB_ACCEL_NEOMAGIC_NM2160: 1661 case FB_ACCEL_NEOMAGIC_NM2097: 1662 case FB_ACCEL_NEOMAGIC_NM2200: 1663 case FB_ACCEL_NEOMAGIC_NM2230: 1664 case FB_ACCEL_NEOMAGIC_NM2360: 1665 case FB_ACCEL_NEOMAGIC_NM2380: 1666 info->fix.mmio_start = pci_resource_start(dev, 1); 1667 break; 1668 default: 1669 info->fix.mmio_start = pci_resource_start(dev, 0); 1670 } 1671 info->fix.mmio_len = MMIO_SIZE; 1672 1673 if (!request_mem_region 1674 (info->fix.mmio_start, MMIO_SIZE, "memory mapped I/O")) { 1675 printk("neofb: memory mapped IO in use\n"); 1676 return -EBUSY; 1677 } 1678 1679 par->mmio_vbase = ioremap(info->fix.mmio_start, MMIO_SIZE); 1680 if (!par->mmio_vbase) { 1681 printk("neofb: unable to map memory mapped IO\n"); 1682 release_mem_region(info->fix.mmio_start, 1683 info->fix.mmio_len); 1684 return -ENOMEM; 1685 } else 1686 printk(KERN_INFO "neofb: mapped io at %p\n", 1687 par->mmio_vbase); 1688 return 0; 1689 } 1690 1691 static void neo_unmap_mmio(struct fb_info *info) 1692 { 1693 struct neofb_par *par = info->par; 1694 1695 DBG("neo_unmap_mmio"); 1696 1697 iounmap(par->mmio_vbase); 1698 par->mmio_vbase = NULL; 1699 1700 release_mem_region(info->fix.mmio_start, 1701 info->fix.mmio_len); 1702 } 1703 1704 static int neo_map_video(struct fb_info *info, struct pci_dev *dev, 1705 int video_len) 1706 { 1707 //unsigned long addr; 1708 struct neofb_par *par = info->par; 1709 1710 DBG("neo_map_video"); 1711 1712 info->fix.smem_start = pci_resource_start(dev, 0); 1713 info->fix.smem_len = video_len; 1714 1715 if (!request_mem_region(info->fix.smem_start, info->fix.smem_len, 1716 "frame buffer")) { 1717 printk("neofb: frame buffer in use\n"); 1718 return -EBUSY; 1719 } 1720 1721 info->screen_base = 1722 ioremap_wc(info->fix.smem_start, info->fix.smem_len); 1723 if (!info->screen_base) { 1724 printk("neofb: unable to map screen memory\n"); 1725 release_mem_region(info->fix.smem_start, 1726 info->fix.smem_len); 1727 return -ENOMEM; 1728 } else 1729 printk(KERN_INFO "neofb: mapped framebuffer at %p\n", 1730 info->screen_base); 1731 1732 par->wc_cookie = arch_phys_wc_add(info->fix.smem_start, 1733 pci_resource_len(dev, 0)); 1734 1735 /* Clear framebuffer, it's all white in memory after boot */ 1736 memset_io(info->screen_base, 0, info->fix.smem_len); 1737 1738 /* Allocate Cursor drawing pad. 1739 info->fix.smem_len -= PAGE_SIZE; 1740 addr = info->fix.smem_start + info->fix.smem_len; 1741 write_le32(NEOREG_CURSMEMPOS, ((0x000f & (addr >> 10)) << 8) | 1742 ((0x0ff0 & (addr >> 10)) >> 4), par); 1743 addr = (unsigned long) info->screen_base + info->fix.smem_len; 1744 info->sprite.addr = (u8 *) addr; */ 1745 return 0; 1746 } 1747 1748 static void neo_unmap_video(struct fb_info *info) 1749 { 1750 struct neofb_par *par = info->par; 1751 1752 DBG("neo_unmap_video"); 1753 1754 arch_phys_wc_del(par->wc_cookie); 1755 iounmap(info->screen_base); 1756 info->screen_base = NULL; 1757 1758 release_mem_region(info->fix.smem_start, 1759 info->fix.smem_len); 1760 } 1761 1762 static int neo_scan_monitor(struct fb_info *info) 1763 { 1764 struct neofb_par *par = info->par; 1765 unsigned char type, display; 1766 int w; 1767 1768 // Eventually we will have i2c support. 1769 info->monspecs.modedb = kmalloc(sizeof(struct fb_videomode), GFP_KERNEL); 1770 if (!info->monspecs.modedb) 1771 return -ENOMEM; 1772 info->monspecs.modedb_len = 1; 1773 1774 /* Determine the panel type */ 1775 vga_wgfx(NULL, 0x09, 0x26); 1776 type = vga_rgfx(NULL, 0x21); 1777 display = vga_rgfx(NULL, 0x20); 1778 if (!par->internal_display && !par->external_display) { 1779 par->internal_display = display & 2 || !(display & 3) ? 1 : 0; 1780 par->external_display = display & 1; 1781 printk (KERN_INFO "Autodetected %s display\n", 1782 par->internal_display && par->external_display ? "simultaneous" : 1783 par->internal_display ? "internal" : "external"); 1784 } 1785 1786 /* Determine panel width -- used in NeoValidMode. */ 1787 w = vga_rgfx(NULL, 0x20); 1788 vga_wgfx(NULL, 0x09, 0x00); 1789 switch ((w & 0x18) >> 3) { 1790 case 0x00: 1791 // 640x480@60 1792 par->NeoPanelWidth = 640; 1793 par->NeoPanelHeight = 480; 1794 memcpy(info->monspecs.modedb, &vesa_modes[3], sizeof(struct fb_videomode)); 1795 break; 1796 case 0x01: 1797 par->NeoPanelWidth = 800; 1798 if (par->libretto) { 1799 par->NeoPanelHeight = 480; 1800 memcpy(info->monspecs.modedb, &mode800x480, sizeof(struct fb_videomode)); 1801 } else { 1802 // 800x600@60 1803 par->NeoPanelHeight = 600; 1804 memcpy(info->monspecs.modedb, &vesa_modes[8], sizeof(struct fb_videomode)); 1805 } 1806 break; 1807 case 0x02: 1808 // 1024x768@60 1809 par->NeoPanelWidth = 1024; 1810 par->NeoPanelHeight = 768; 1811 memcpy(info->monspecs.modedb, &vesa_modes[13], sizeof(struct fb_videomode)); 1812 break; 1813 case 0x03: 1814 /* 1280x1024@60 panel support needs to be added */ 1815 #ifdef NOT_DONE 1816 par->NeoPanelWidth = 1280; 1817 par->NeoPanelHeight = 1024; 1818 memcpy(info->monspecs.modedb, &vesa_modes[20], sizeof(struct fb_videomode)); 1819 break; 1820 #else 1821 printk(KERN_ERR 1822 "neofb: Only 640x480, 800x600/480 and 1024x768 panels are currently supported\n"); 1823 return -1; 1824 #endif 1825 default: 1826 // 640x480@60 1827 par->NeoPanelWidth = 640; 1828 par->NeoPanelHeight = 480; 1829 memcpy(info->monspecs.modedb, &vesa_modes[3], sizeof(struct fb_videomode)); 1830 break; 1831 } 1832 1833 printk(KERN_INFO "Panel is a %dx%d %s %s display\n", 1834 par->NeoPanelWidth, 1835 par->NeoPanelHeight, 1836 (type & 0x02) ? "color" : "monochrome", 1837 (type & 0x10) ? "TFT" : "dual scan"); 1838 return 0; 1839 } 1840 1841 static int neo_init_hw(struct fb_info *info) 1842 { 1843 struct neofb_par *par = info->par; 1844 int videoRam = 896; 1845 int maxClock = 65000; 1846 int CursorMem = 1024; 1847 int CursorOff = 0x100; 1848 1849 DBG("neo_init_hw"); 1850 1851 neoUnlock(); 1852 1853 #if 0 1854 printk(KERN_DEBUG "--- Neo extended register dump ---\n"); 1855 for (int w = 0; w < 0x85; w++) 1856 printk(KERN_DEBUG "CR %p: %p\n", (void *) w, 1857 (void *) vga_rcrt(NULL, w)); 1858 for (int w = 0; w < 0xC7; w++) 1859 printk(KERN_DEBUG "GR %p: %p\n", (void *) w, 1860 (void *) vga_rgfx(NULL, w)); 1861 #endif 1862 switch (info->fix.accel) { 1863 case FB_ACCEL_NEOMAGIC_NM2070: 1864 videoRam = 896; 1865 maxClock = 65000; 1866 break; 1867 case FB_ACCEL_NEOMAGIC_NM2090: 1868 case FB_ACCEL_NEOMAGIC_NM2093: 1869 case FB_ACCEL_NEOMAGIC_NM2097: 1870 videoRam = 1152; 1871 maxClock = 80000; 1872 break; 1873 case FB_ACCEL_NEOMAGIC_NM2160: 1874 videoRam = 2048; 1875 maxClock = 90000; 1876 break; 1877 case FB_ACCEL_NEOMAGIC_NM2200: 1878 videoRam = 2560; 1879 maxClock = 110000; 1880 break; 1881 case FB_ACCEL_NEOMAGIC_NM2230: 1882 videoRam = 3008; 1883 maxClock = 110000; 1884 break; 1885 case FB_ACCEL_NEOMAGIC_NM2360: 1886 videoRam = 4096; 1887 maxClock = 110000; 1888 break; 1889 case FB_ACCEL_NEOMAGIC_NM2380: 1890 videoRam = 6144; 1891 maxClock = 110000; 1892 break; 1893 } 1894 switch (info->fix.accel) { 1895 case FB_ACCEL_NEOMAGIC_NM2070: 1896 case FB_ACCEL_NEOMAGIC_NM2090: 1897 case FB_ACCEL_NEOMAGIC_NM2093: 1898 CursorMem = 2048; 1899 CursorOff = 0x100; 1900 break; 1901 case FB_ACCEL_NEOMAGIC_NM2097: 1902 case FB_ACCEL_NEOMAGIC_NM2160: 1903 CursorMem = 1024; 1904 CursorOff = 0x100; 1905 break; 1906 case FB_ACCEL_NEOMAGIC_NM2200: 1907 case FB_ACCEL_NEOMAGIC_NM2230: 1908 case FB_ACCEL_NEOMAGIC_NM2360: 1909 case FB_ACCEL_NEOMAGIC_NM2380: 1910 CursorMem = 1024; 1911 CursorOff = 0x1000; 1912 1913 par->neo2200 = (Neo2200 __iomem *) par->mmio_vbase; 1914 break; 1915 } 1916 /* 1917 info->sprite.size = CursorMem; 1918 info->sprite.scan_align = 1; 1919 info->sprite.buf_align = 1; 1920 info->sprite.flags = FB_PIXMAP_IO; 1921 info->sprite.outbuf = neofb_draw_cursor; 1922 */ 1923 par->maxClock = maxClock; 1924 par->cursorOff = CursorOff; 1925 return videoRam * 1024; 1926 } 1927 1928 1929 static struct fb_info *neo_alloc_fb_info(struct pci_dev *dev, 1930 const struct pci_device_id *id) 1931 { 1932 struct fb_info *info; 1933 struct neofb_par *par; 1934 1935 info = framebuffer_alloc(sizeof(struct neofb_par), &dev->dev); 1936 1937 if (!info) 1938 return NULL; 1939 1940 par = info->par; 1941 1942 info->fix.accel = id->driver_data; 1943 1944 par->pci_burst = !nopciburst; 1945 par->lcd_stretch = !nostretch; 1946 par->libretto = libretto; 1947 1948 par->internal_display = internal; 1949 par->external_display = external; 1950 info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN; 1951 1952 switch (info->fix.accel) { 1953 case FB_ACCEL_NEOMAGIC_NM2070: 1954 snprintf(info->fix.id, sizeof(info->fix.id), 1955 "MagicGraph 128"); 1956 break; 1957 case FB_ACCEL_NEOMAGIC_NM2090: 1958 snprintf(info->fix.id, sizeof(info->fix.id), 1959 "MagicGraph 128V"); 1960 break; 1961 case FB_ACCEL_NEOMAGIC_NM2093: 1962 snprintf(info->fix.id, sizeof(info->fix.id), 1963 "MagicGraph 128ZV"); 1964 break; 1965 case FB_ACCEL_NEOMAGIC_NM2097: 1966 snprintf(info->fix.id, sizeof(info->fix.id), 1967 "MagicGraph 128ZV+"); 1968 break; 1969 case FB_ACCEL_NEOMAGIC_NM2160: 1970 snprintf(info->fix.id, sizeof(info->fix.id), 1971 "MagicGraph 128XD"); 1972 break; 1973 case FB_ACCEL_NEOMAGIC_NM2200: 1974 snprintf(info->fix.id, sizeof(info->fix.id), 1975 "MagicGraph 256AV"); 1976 info->flags |= FBINFO_HWACCEL_IMAGEBLIT | 1977 FBINFO_HWACCEL_COPYAREA | 1978 FBINFO_HWACCEL_FILLRECT; 1979 break; 1980 case FB_ACCEL_NEOMAGIC_NM2230: 1981 snprintf(info->fix.id, sizeof(info->fix.id), 1982 "MagicGraph 256AV+"); 1983 info->flags |= FBINFO_HWACCEL_IMAGEBLIT | 1984 FBINFO_HWACCEL_COPYAREA | 1985 FBINFO_HWACCEL_FILLRECT; 1986 break; 1987 case FB_ACCEL_NEOMAGIC_NM2360: 1988 snprintf(info->fix.id, sizeof(info->fix.id), 1989 "MagicGraph 256ZX"); 1990 info->flags |= FBINFO_HWACCEL_IMAGEBLIT | 1991 FBINFO_HWACCEL_COPYAREA | 1992 FBINFO_HWACCEL_FILLRECT; 1993 break; 1994 case FB_ACCEL_NEOMAGIC_NM2380: 1995 snprintf(info->fix.id, sizeof(info->fix.id), 1996 "MagicGraph 256XL+"); 1997 info->flags |= FBINFO_HWACCEL_IMAGEBLIT | 1998 FBINFO_HWACCEL_COPYAREA | 1999 FBINFO_HWACCEL_FILLRECT; 2000 break; 2001 } 2002 2003 info->fix.type = FB_TYPE_PACKED_PIXELS; 2004 info->fix.type_aux = 0; 2005 info->fix.xpanstep = 0; 2006 info->fix.ypanstep = 4; 2007 info->fix.ywrapstep = 0; 2008 info->fix.accel = id->driver_data; 2009 2010 info->fbops = &neofb_ops; 2011 info->pseudo_palette = par->palette; 2012 return info; 2013 } 2014 2015 static void neo_free_fb_info(struct fb_info *info) 2016 { 2017 if (info) { 2018 /* 2019 * Free the colourmap 2020 */ 2021 fb_dealloc_cmap(&info->cmap); 2022 framebuffer_release(info); 2023 } 2024 } 2025 2026 /* --------------------------------------------------------------------- */ 2027 2028 static int neofb_probe(struct pci_dev *dev, const struct pci_device_id *id) 2029 { 2030 struct fb_info *info; 2031 u_int h_sync, v_sync; 2032 int video_len, err; 2033 2034 DBG("neofb_probe"); 2035 2036 err = pci_enable_device(dev); 2037 if (err) 2038 return err; 2039 2040 err = -ENOMEM; 2041 info = neo_alloc_fb_info(dev, id); 2042 if (!info) 2043 return err; 2044 2045 err = neo_map_mmio(info, dev); 2046 if (err) 2047 goto err_map_mmio; 2048 2049 err = neo_scan_monitor(info); 2050 if (err) 2051 goto err_scan_monitor; 2052 2053 video_len = neo_init_hw(info); 2054 if (video_len < 0) { 2055 err = video_len; 2056 goto err_init_hw; 2057 } 2058 2059 err = neo_map_video(info, dev, video_len); 2060 if (err) 2061 goto err_init_hw; 2062 2063 if (!fb_find_mode(&info->var, info, mode_option, NULL, 0, 2064 info->monspecs.modedb, 16)) { 2065 printk(KERN_ERR "neofb: Unable to find usable video mode.\n"); 2066 err = -EINVAL; 2067 goto err_map_video; 2068 } 2069 2070 /* 2071 * Calculate the hsync and vsync frequencies. Note that 2072 * we split the 1e12 constant up so that we can preserve 2073 * the precision and fit the results into 32-bit registers. 2074 * (1953125000 * 512 = 1e12) 2075 */ 2076 h_sync = 1953125000 / info->var.pixclock; 2077 h_sync = 2078 h_sync * 512 / (info->var.xres + info->var.left_margin + 2079 info->var.right_margin + info->var.hsync_len); 2080 v_sync = 2081 h_sync / (info->var.yres + info->var.upper_margin + 2082 info->var.lower_margin + info->var.vsync_len); 2083 2084 printk(KERN_INFO "neofb v" NEOFB_VERSION 2085 ": %dkB VRAM, using %dx%d, %d.%03dkHz, %dHz\n", 2086 info->fix.smem_len >> 10, info->var.xres, 2087 info->var.yres, h_sync / 1000, h_sync % 1000, v_sync); 2088 2089 err = fb_alloc_cmap(&info->cmap, 256, 0); 2090 if (err < 0) 2091 goto err_map_video; 2092 2093 err = register_framebuffer(info); 2094 if (err < 0) 2095 goto err_reg_fb; 2096 2097 fb_info(info, "%s frame buffer device\n", info->fix.id); 2098 2099 /* 2100 * Our driver data 2101 */ 2102 pci_set_drvdata(dev, info); 2103 return 0; 2104 2105 err_reg_fb: 2106 fb_dealloc_cmap(&info->cmap); 2107 err_map_video: 2108 neo_unmap_video(info); 2109 err_init_hw: 2110 fb_destroy_modedb(info->monspecs.modedb); 2111 err_scan_monitor: 2112 neo_unmap_mmio(info); 2113 err_map_mmio: 2114 neo_free_fb_info(info); 2115 return err; 2116 } 2117 2118 static void neofb_remove(struct pci_dev *dev) 2119 { 2120 struct fb_info *info = pci_get_drvdata(dev); 2121 2122 DBG("neofb_remove"); 2123 2124 if (info) { 2125 /* 2126 * If unregister_framebuffer fails, then 2127 * we will be leaving hooks that could cause 2128 * oopsen laying around. 2129 */ 2130 if (unregister_framebuffer(info)) 2131 printk(KERN_WARNING 2132 "neofb: danger danger! Oopsen imminent!\n"); 2133 2134 neo_unmap_video(info); 2135 fb_destroy_modedb(info->monspecs.modedb); 2136 neo_unmap_mmio(info); 2137 neo_free_fb_info(info); 2138 } 2139 } 2140 2141 static const struct pci_device_id neofb_devices[] = { 2142 {PCI_VENDOR_ID_NEOMAGIC, PCI_CHIP_NM2070, 2143 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_NEOMAGIC_NM2070}, 2144 2145 {PCI_VENDOR_ID_NEOMAGIC, PCI_CHIP_NM2090, 2146 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_NEOMAGIC_NM2090}, 2147 2148 {PCI_VENDOR_ID_NEOMAGIC, PCI_CHIP_NM2093, 2149 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_NEOMAGIC_NM2093}, 2150 2151 {PCI_VENDOR_ID_NEOMAGIC, PCI_CHIP_NM2097, 2152 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_NEOMAGIC_NM2097}, 2153 2154 {PCI_VENDOR_ID_NEOMAGIC, PCI_CHIP_NM2160, 2155 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_NEOMAGIC_NM2160}, 2156 2157 {PCI_VENDOR_ID_NEOMAGIC, PCI_CHIP_NM2200, 2158 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_NEOMAGIC_NM2200}, 2159 2160 {PCI_VENDOR_ID_NEOMAGIC, PCI_CHIP_NM2230, 2161 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_NEOMAGIC_NM2230}, 2162 2163 {PCI_VENDOR_ID_NEOMAGIC, PCI_CHIP_NM2360, 2164 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_NEOMAGIC_NM2360}, 2165 2166 {PCI_VENDOR_ID_NEOMAGIC, PCI_CHIP_NM2380, 2167 PCI_ANY_ID, PCI_ANY_ID, 0, 0, FB_ACCEL_NEOMAGIC_NM2380}, 2168 2169 {0, 0, 0, 0, 0, 0, 0} 2170 }; 2171 2172 MODULE_DEVICE_TABLE(pci, neofb_devices); 2173 2174 static struct pci_driver neofb_driver = { 2175 .name = "neofb", 2176 .id_table = neofb_devices, 2177 .probe = neofb_probe, 2178 .remove = neofb_remove, 2179 }; 2180 2181 /* ************************* init in-kernel code ************************** */ 2182 2183 #ifndef MODULE 2184 static int __init neofb_setup(char *options) 2185 { 2186 char *this_opt; 2187 2188 DBG("neofb_setup"); 2189 2190 if (!options || !*options) 2191 return 0; 2192 2193 while ((this_opt = strsep(&options, ",")) != NULL) { 2194 if (!*this_opt) 2195 continue; 2196 2197 if (!strncmp(this_opt, "internal", 8)) 2198 internal = 1; 2199 else if (!strncmp(this_opt, "external", 8)) 2200 external = 1; 2201 else if (!strncmp(this_opt, "nostretch", 9)) 2202 nostretch = 1; 2203 else if (!strncmp(this_opt, "nopciburst", 10)) 2204 nopciburst = 1; 2205 else if (!strncmp(this_opt, "libretto", 8)) 2206 libretto = 1; 2207 else 2208 mode_option = this_opt; 2209 } 2210 return 0; 2211 } 2212 #endif /* MODULE */ 2213 2214 static int __init neofb_init(void) 2215 { 2216 #ifndef MODULE 2217 char *option = NULL; 2218 2219 if (fb_get_options("neofb", &option)) 2220 return -ENODEV; 2221 neofb_setup(option); 2222 #endif 2223 return pci_register_driver(&neofb_driver); 2224 } 2225 2226 module_init(neofb_init); 2227 2228 #ifdef MODULE 2229 static void __exit neofb_exit(void) 2230 { 2231 pci_unregister_driver(&neofb_driver); 2232 } 2233 2234 module_exit(neofb_exit); 2235 #endif /* MODULE */ 2236