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