1// SPDX-License-Identifier: GPL-2.0-only 2/* 3 * Frame buffer driver for Trident TGUI, Blade and Image series 4 * 5 * Copyright 2001, 2002 - Jani Monoses <jani@iv.ro> 6 * Copyright 2009 Krzysztof Helt <krzysztof.h1@wp.pl> 7 * 8 * CREDITS:(in order of appearance) 9 * skeletonfb.c by Geert Uytterhoeven and other fb code in drivers/video 10 * Special thanks ;) to Mattia Crivellini <tia@mclink.it> 11 * much inspired by the XFree86 4.x Trident driver sources 12 * by Alan Hourihane the FreeVGA project 13 * Francesco Salvestrini <salvestrini@users.sf.net> XP support, 14 * code, suggestions 15 * TODO: 16 * timing value tweaking so it looks good on every monitor in every mode 17 */ 18 19#include <linux/aperture.h> 20#include <linux/module.h> 21#include <linux/fb.h> 22#include <linux/init.h> 23#include <linux/pci.h> 24#include <linux/slab.h> 25 26#include <linux/delay.h> 27#include <video/vga.h> 28#include <video/trident.h> 29 30#include <linux/i2c.h> 31#include <linux/i2c-algo-bit.h> 32 33struct tridentfb_par { 34 void __iomem *io_virt; /* iospace virtual memory address */ 35 u32 pseudo_pal[16]; 36 int chip_id; 37 int flatpanel; 38 void (*init_accel) (struct tridentfb_par *, int, int); 39 void (*wait_engine) (struct tridentfb_par *); 40 void (*fill_rect) 41 (struct tridentfb_par *par, u32, u32, u32, u32, u32, u32); 42 void (*copy_rect) 43 (struct tridentfb_par *par, u32, u32, u32, u32, u32, u32); 44 void (*image_blit) 45 (struct tridentfb_par *par, const char*, 46 u32, u32, u32, u32, u32, u32); 47 unsigned char eng_oper; /* engine operation... */ 48 bool ddc_registered; 49 struct i2c_adapter ddc_adapter; 50 struct i2c_algo_bit_data ddc_algo; 51}; 52 53static struct fb_fix_screeninfo tridentfb_fix = { 54 .id = "Trident", 55 .type = FB_TYPE_PACKED_PIXELS, 56 .ypanstep = 1, 57 .visual = FB_VISUAL_PSEUDOCOLOR, 58 .accel = FB_ACCEL_NONE, 59}; 60 61/* defaults which are normally overriden by user values */ 62 63/* video mode */ 64static char *mode_option; 65static int bpp = 8; 66 67static int noaccel; 68 69static int center; 70static int stretch; 71 72static int fp; 73static int crt; 74 75static int memsize; 76static int memdiff; 77static int nativex; 78 79module_param(mode_option, charp, 0); 80MODULE_PARM_DESC(mode_option, "Initial video mode e.g. '648x480-8@60'"); 81module_param_named(mode, mode_option, charp, 0); 82MODULE_PARM_DESC(mode, "Initial video mode e.g. '648x480-8@60' (deprecated)"); 83module_param(bpp, int, 0); 84module_param(center, int, 0); 85module_param(stretch, int, 0); 86module_param(noaccel, int, 0); 87module_param(memsize, int, 0); 88module_param(memdiff, int, 0); 89module_param(nativex, int, 0); 90module_param(fp, int, 0); 91MODULE_PARM_DESC(fp, "Define if flatpanel is connected"); 92module_param(crt, int, 0); 93MODULE_PARM_DESC(crt, "Define if CRT is connected"); 94 95static inline int is_oldclock(int id) 96{ 97 return (id == TGUI9440) || 98 (id == TGUI9660) || 99 (id == CYBER9320); 100} 101 102static inline int is_oldprotect(int id) 103{ 104 return is_oldclock(id) || 105 (id == PROVIDIA9685) || 106 (id == CYBER9382) || 107 (id == CYBER9385); 108} 109 110static inline int is_blade(int id) 111{ 112 return (id == BLADE3D) || 113 (id == CYBERBLADEE4) || 114 (id == CYBERBLADEi7) || 115 (id == CYBERBLADEi7D) || 116 (id == CYBERBLADEi1) || 117 (id == CYBERBLADEi1D) || 118 (id == CYBERBLADEAi1) || 119 (id == CYBERBLADEAi1D); 120} 121 122static inline int is_xp(int id) 123{ 124 return (id == CYBERBLADEXPAi1) || 125 (id == CYBERBLADEXPm8) || 126 (id == CYBERBLADEXPm16); 127} 128 129static inline int is3Dchip(int id) 130{ 131 return is_blade(id) || is_xp(id) || 132 (id == CYBER9397) || (id == CYBER9397DVD) || 133 (id == CYBER9520) || (id == CYBER9525DVD) || 134 (id == IMAGE975) || (id == IMAGE985); 135} 136 137static inline int iscyber(int id) 138{ 139 switch (id) { 140 case CYBER9388: 141 case CYBER9382: 142 case CYBER9385: 143 case CYBER9397: 144 case CYBER9397DVD: 145 case CYBER9520: 146 case CYBER9525DVD: 147 case CYBERBLADEE4: 148 case CYBERBLADEi7D: 149 case CYBERBLADEi1: 150 case CYBERBLADEi1D: 151 case CYBERBLADEAi1: 152 case CYBERBLADEAi1D: 153 case CYBERBLADEXPAi1: 154 return 1; 155 156 case CYBER9320: 157 case CYBERBLADEi7: /* VIA MPV4 integrated version */ 158 default: 159 /* case CYBERBLDAEXPm8: Strange */ 160 /* case CYBERBLDAEXPm16: Strange */ 161 return 0; 162 } 163} 164 165static inline void t_outb(struct tridentfb_par *p, u8 val, u16 reg) 166{ 167 fb_writeb(val, p->io_virt + reg); 168} 169 170static inline u8 t_inb(struct tridentfb_par *p, u16 reg) 171{ 172 return fb_readb(p->io_virt + reg); 173} 174 175static inline void writemmr(struct tridentfb_par *par, u16 r, u32 v) 176{ 177 fb_writel(v, par->io_virt + r); 178} 179 180static inline u32 readmmr(struct tridentfb_par *par, u16 r) 181{ 182 return fb_readl(par->io_virt + r); 183} 184 185#define DDC_SDA_TGUI BIT(0) 186#define DDC_SCL_TGUI BIT(1) 187#define DDC_SCL_DRIVE_TGUI BIT(2) 188#define DDC_SDA_DRIVE_TGUI BIT(3) 189#define DDC_MASK_TGUI (DDC_SCL_DRIVE_TGUI | DDC_SDA_DRIVE_TGUI) 190 191static void tridentfb_ddc_setscl_tgui(void *data, int val) 192{ 193 struct tridentfb_par *par = data; 194 u8 reg = vga_mm_rcrt(par->io_virt, I2C) & DDC_MASK_TGUI; 195 196 if (val) 197 reg &= ~DDC_SCL_DRIVE_TGUI; /* disable drive - don't drive hi */ 198 else 199 reg |= DDC_SCL_DRIVE_TGUI; /* drive low */ 200 201 vga_mm_wcrt(par->io_virt, I2C, reg); 202} 203 204static void tridentfb_ddc_setsda_tgui(void *data, int val) 205{ 206 struct tridentfb_par *par = data; 207 u8 reg = vga_mm_rcrt(par->io_virt, I2C) & DDC_MASK_TGUI; 208 209 if (val) 210 reg &= ~DDC_SDA_DRIVE_TGUI; /* disable drive - don't drive hi */ 211 else 212 reg |= DDC_SDA_DRIVE_TGUI; /* drive low */ 213 214 vga_mm_wcrt(par->io_virt, I2C, reg); 215} 216 217static int tridentfb_ddc_getsda_tgui(void *data) 218{ 219 struct tridentfb_par *par = data; 220 221 return !!(vga_mm_rcrt(par->io_virt, I2C) & DDC_SDA_TGUI); 222} 223 224#define DDC_SDA_IN BIT(0) 225#define DDC_SCL_OUT BIT(1) 226#define DDC_SDA_OUT BIT(3) 227#define DDC_SCL_IN BIT(6) 228#define DDC_MASK (DDC_SCL_OUT | DDC_SDA_OUT) 229 230static void tridentfb_ddc_setscl(void *data, int val) 231{ 232 struct tridentfb_par *par = data; 233 unsigned char reg; 234 235 reg = vga_mm_rcrt(par->io_virt, I2C) & DDC_MASK; 236 if (val) 237 reg |= DDC_SCL_OUT; 238 else 239 reg &= ~DDC_SCL_OUT; 240 vga_mm_wcrt(par->io_virt, I2C, reg); 241} 242 243static void tridentfb_ddc_setsda(void *data, int val) 244{ 245 struct tridentfb_par *par = data; 246 unsigned char reg; 247 248 reg = vga_mm_rcrt(par->io_virt, I2C) & DDC_MASK; 249 if (!val) 250 reg |= DDC_SDA_OUT; 251 else 252 reg &= ~DDC_SDA_OUT; 253 vga_mm_wcrt(par->io_virt, I2C, reg); 254} 255 256static int tridentfb_ddc_getscl(void *data) 257{ 258 struct tridentfb_par *par = data; 259 260 return !!(vga_mm_rcrt(par->io_virt, I2C) & DDC_SCL_IN); 261} 262 263static int tridentfb_ddc_getsda(void *data) 264{ 265 struct tridentfb_par *par = data; 266 267 return !!(vga_mm_rcrt(par->io_virt, I2C) & DDC_SDA_IN); 268} 269 270static int tridentfb_setup_ddc_bus(struct fb_info *info) 271{ 272 struct tridentfb_par *par = info->par; 273 274 strscpy(par->ddc_adapter.name, info->fix.id, 275 sizeof(par->ddc_adapter.name)); 276 par->ddc_adapter.owner = THIS_MODULE; 277 par->ddc_adapter.class = I2C_CLASS_DDC; 278 par->ddc_adapter.algo_data = &par->ddc_algo; 279 par->ddc_adapter.dev.parent = info->device; 280 if (is_oldclock(par->chip_id)) { /* not sure if this check is OK */ 281 par->ddc_algo.setsda = tridentfb_ddc_setsda_tgui; 282 par->ddc_algo.setscl = tridentfb_ddc_setscl_tgui; 283 par->ddc_algo.getsda = tridentfb_ddc_getsda_tgui; 284 /* no getscl */ 285 } else { 286 par->ddc_algo.setsda = tridentfb_ddc_setsda; 287 par->ddc_algo.setscl = tridentfb_ddc_setscl; 288 par->ddc_algo.getsda = tridentfb_ddc_getsda; 289 par->ddc_algo.getscl = tridentfb_ddc_getscl; 290 } 291 par->ddc_algo.udelay = 10; 292 par->ddc_algo.timeout = 20; 293 par->ddc_algo.data = par; 294 295 i2c_set_adapdata(&par->ddc_adapter, par); 296 297 return i2c_bit_add_bus(&par->ddc_adapter); 298} 299 300/* 301 * Blade specific acceleration. 302 */ 303 304#define point(x, y) ((y) << 16 | (x)) 305 306static void blade_init_accel(struct tridentfb_par *par, int pitch, int bpp) 307{ 308 int v1 = (pitch >> 3) << 20; 309 int tmp = bpp == 24 ? 2 : (bpp >> 4); 310 int v2 = v1 | (tmp << 29); 311 312 writemmr(par, 0x21C0, v2); 313 writemmr(par, 0x21C4, v2); 314 writemmr(par, 0x21B8, v2); 315 writemmr(par, 0x21BC, v2); 316 writemmr(par, 0x21D0, v1); 317 writemmr(par, 0x21D4, v1); 318 writemmr(par, 0x21C8, v1); 319 writemmr(par, 0x21CC, v1); 320 writemmr(par, 0x216C, 0); 321} 322 323static void blade_wait_engine(struct tridentfb_par *par) 324{ 325 while (readmmr(par, STATUS) & 0xFA800000) 326 cpu_relax(); 327} 328 329static void blade_fill_rect(struct tridentfb_par *par, 330 u32 x, u32 y, u32 w, u32 h, u32 c, u32 rop) 331{ 332 writemmr(par, COLOR, c); 333 writemmr(par, ROP, rop ? ROP_X : ROP_S); 334 writemmr(par, CMD, 0x20000000 | 1 << 19 | 1 << 4 | 2 << 2); 335 336 writemmr(par, DST1, point(x, y)); 337 writemmr(par, DST2, point(x + w - 1, y + h - 1)); 338} 339 340static void blade_image_blit(struct tridentfb_par *par, const char *data, 341 u32 x, u32 y, u32 w, u32 h, u32 c, u32 b) 342{ 343 unsigned size = ((w + 31) >> 5) * h; 344 345 writemmr(par, COLOR, c); 346 writemmr(par, BGCOLOR, b); 347 writemmr(par, CMD, 0xa0000000 | 3 << 19); 348 349 writemmr(par, DST1, point(x, y)); 350 writemmr(par, DST2, point(x + w - 1, y + h - 1)); 351 352 iowrite32_rep(par->io_virt + 0x10000, data, size); 353} 354 355static void blade_copy_rect(struct tridentfb_par *par, 356 u32 x1, u32 y1, u32 x2, u32 y2, u32 w, u32 h) 357{ 358 int direction = 2; 359 u32 s1 = point(x1, y1); 360 u32 s2 = point(x1 + w - 1, y1 + h - 1); 361 u32 d1 = point(x2, y2); 362 u32 d2 = point(x2 + w - 1, y2 + h - 1); 363 364 if ((y1 > y2) || ((y1 == y2) && (x1 > x2))) 365 direction = 0; 366 367 writemmr(par, ROP, ROP_S); 368 writemmr(par, CMD, 0xE0000000 | 1 << 19 | 1 << 4 | 1 << 2 | direction); 369 370 writemmr(par, SRC1, direction ? s2 : s1); 371 writemmr(par, SRC2, direction ? s1 : s2); 372 writemmr(par, DST1, direction ? d2 : d1); 373 writemmr(par, DST2, direction ? d1 : d2); 374} 375 376/* 377 * BladeXP specific acceleration functions 378 */ 379 380static void xp_init_accel(struct tridentfb_par *par, int pitch, int bpp) 381{ 382 unsigned char x = bpp == 24 ? 3 : (bpp >> 4); 383 int v1 = pitch << (bpp == 24 ? 20 : (18 + x)); 384 385 switch (pitch << (bpp >> 3)) { 386 case 8192: 387 case 512: 388 x |= 0x00; 389 break; 390 case 1024: 391 x |= 0x04; 392 break; 393 case 2048: 394 x |= 0x08; 395 break; 396 case 4096: 397 x |= 0x0C; 398 break; 399 } 400 401 t_outb(par, x, 0x2125); 402 403 par->eng_oper = x | 0x40; 404 405 writemmr(par, 0x2154, v1); 406 writemmr(par, 0x2150, v1); 407 t_outb(par, 3, 0x2126); 408} 409 410static void xp_wait_engine(struct tridentfb_par *par) 411{ 412 int count = 0; 413 int timeout = 0; 414 415 while (t_inb(par, STATUS) & 0x80) { 416 count++; 417 if (count == 10000000) { 418 /* Timeout */ 419 count = 9990000; 420 timeout++; 421 if (timeout == 8) { 422 /* Reset engine */ 423 t_outb(par, 0x00, STATUS); 424 return; 425 } 426 } 427 cpu_relax(); 428 } 429} 430 431static void xp_fill_rect(struct tridentfb_par *par, 432 u32 x, u32 y, u32 w, u32 h, u32 c, u32 rop) 433{ 434 writemmr(par, 0x2127, ROP_P); 435 writemmr(par, 0x2158, c); 436 writemmr(par, DRAWFL, 0x4000); 437 writemmr(par, OLDDIM, point(h, w)); 438 writemmr(par, OLDDST, point(y, x)); 439 t_outb(par, 0x01, OLDCMD); 440 t_outb(par, par->eng_oper, 0x2125); 441} 442 443static void xp_copy_rect(struct tridentfb_par *par, 444 u32 x1, u32 y1, u32 x2, u32 y2, u32 w, u32 h) 445{ 446 u32 x1_tmp, x2_tmp, y1_tmp, y2_tmp; 447 int direction = 0x0004; 448 449 if ((x1 < x2) && (y1 == y2)) { 450 direction |= 0x0200; 451 x1_tmp = x1 + w - 1; 452 x2_tmp = x2 + w - 1; 453 } else { 454 x1_tmp = x1; 455 x2_tmp = x2; 456 } 457 458 if (y1 < y2) { 459 direction |= 0x0100; 460 y1_tmp = y1 + h - 1; 461 y2_tmp = y2 + h - 1; 462 } else { 463 y1_tmp = y1; 464 y2_tmp = y2; 465 } 466 467 writemmr(par, DRAWFL, direction); 468 t_outb(par, ROP_S, 0x2127); 469 writemmr(par, OLDSRC, point(y1_tmp, x1_tmp)); 470 writemmr(par, OLDDST, point(y2_tmp, x2_tmp)); 471 writemmr(par, OLDDIM, point(h, w)); 472 t_outb(par, 0x01, OLDCMD); 473} 474 475/* 476 * Image specific acceleration functions 477 */ 478static void image_init_accel(struct tridentfb_par *par, int pitch, int bpp) 479{ 480 int tmp = bpp == 24 ? 2: (bpp >> 4); 481 482 writemmr(par, 0x2120, 0xF0000000); 483 writemmr(par, 0x2120, 0x40000000 | tmp); 484 writemmr(par, 0x2120, 0x80000000); 485 writemmr(par, 0x2144, 0x00000000); 486 writemmr(par, 0x2148, 0x00000000); 487 writemmr(par, 0x2150, 0x00000000); 488 writemmr(par, 0x2154, 0x00000000); 489 writemmr(par, 0x2120, 0x60000000 | (pitch << 16) | pitch); 490 writemmr(par, 0x216C, 0x00000000); 491 writemmr(par, 0x2170, 0x00000000); 492 writemmr(par, 0x217C, 0x00000000); 493 writemmr(par, 0x2120, 0x10000000); 494 writemmr(par, 0x2130, (2047 << 16) | 2047); 495} 496 497static void image_wait_engine(struct tridentfb_par *par) 498{ 499 while (readmmr(par, 0x2164) & 0xF0000000) 500 cpu_relax(); 501} 502 503static void image_fill_rect(struct tridentfb_par *par, 504 u32 x, u32 y, u32 w, u32 h, u32 c, u32 rop) 505{ 506 writemmr(par, 0x2120, 0x80000000); 507 writemmr(par, 0x2120, 0x90000000 | ROP_S); 508 509 writemmr(par, 0x2144, c); 510 511 writemmr(par, DST1, point(x, y)); 512 writemmr(par, DST2, point(x + w - 1, y + h - 1)); 513 514 writemmr(par, 0x2124, 0x80000000 | 3 << 22 | 1 << 10 | 1 << 9); 515} 516 517static void image_copy_rect(struct tridentfb_par *par, 518 u32 x1, u32 y1, u32 x2, u32 y2, u32 w, u32 h) 519{ 520 int direction = 0x4; 521 u32 s1 = point(x1, y1); 522 u32 s2 = point(x1 + w - 1, y1 + h - 1); 523 u32 d1 = point(x2, y2); 524 u32 d2 = point(x2 + w - 1, y2 + h - 1); 525 526 if ((y1 > y2) || ((y1 == y2) && (x1 > x2))) 527 direction = 0; 528 529 writemmr(par, 0x2120, 0x80000000); 530 writemmr(par, 0x2120, 0x90000000 | ROP_S); 531 532 writemmr(par, SRC1, direction ? s2 : s1); 533 writemmr(par, SRC2, direction ? s1 : s2); 534 writemmr(par, DST1, direction ? d2 : d1); 535 writemmr(par, DST2, direction ? d1 : d2); 536 writemmr(par, 0x2124, 537 0x80000000 | 1 << 22 | 1 << 10 | 1 << 7 | direction); 538} 539 540/* 541 * TGUI 9440/96XX acceleration 542 */ 543 544static void tgui_init_accel(struct tridentfb_par *par, int pitch, int bpp) 545{ 546 unsigned char x = bpp == 24 ? 3 : (bpp >> 4); 547 548 /* disable clipping */ 549 writemmr(par, 0x2148, 0); 550 writemmr(par, 0x214C, point(4095, 2047)); 551 552 switch ((pitch * bpp) / 8) { 553 case 8192: 554 case 512: 555 x |= 0x00; 556 break; 557 case 1024: 558 x |= 0x04; 559 break; 560 case 2048: 561 x |= 0x08; 562 break; 563 case 4096: 564 x |= 0x0C; 565 break; 566 } 567 568 fb_writew(x, par->io_virt + 0x2122); 569} 570 571static void tgui_fill_rect(struct tridentfb_par *par, 572 u32 x, u32 y, u32 w, u32 h, u32 c, u32 rop) 573{ 574 t_outb(par, ROP_P, 0x2127); 575 writemmr(par, OLDCLR, c); 576 writemmr(par, DRAWFL, 0x4020); 577 writemmr(par, OLDDIM, point(w - 1, h - 1)); 578 writemmr(par, OLDDST, point(x, y)); 579 t_outb(par, 1, OLDCMD); 580} 581 582static void tgui_copy_rect(struct tridentfb_par *par, 583 u32 x1, u32 y1, u32 x2, u32 y2, u32 w, u32 h) 584{ 585 int flags = 0; 586 u16 x1_tmp, x2_tmp, y1_tmp, y2_tmp; 587 588 if ((x1 < x2) && (y1 == y2)) { 589 flags |= 0x0200; 590 x1_tmp = x1 + w - 1; 591 x2_tmp = x2 + w - 1; 592 } else { 593 x1_tmp = x1; 594 x2_tmp = x2; 595 } 596 597 if (y1 < y2) { 598 flags |= 0x0100; 599 y1_tmp = y1 + h - 1; 600 y2_tmp = y2 + h - 1; 601 } else { 602 y1_tmp = y1; 603 y2_tmp = y2; 604 } 605 606 writemmr(par, DRAWFL, 0x4 | flags); 607 t_outb(par, ROP_S, 0x2127); 608 writemmr(par, OLDSRC, point(x1_tmp, y1_tmp)); 609 writemmr(par, OLDDST, point(x2_tmp, y2_tmp)); 610 writemmr(par, OLDDIM, point(w - 1, h - 1)); 611 t_outb(par, 1, OLDCMD); 612} 613 614/* 615 * Accel functions called by the upper layers 616 */ 617static void tridentfb_fillrect(struct fb_info *info, 618 const struct fb_fillrect *fr) 619{ 620 struct tridentfb_par *par = info->par; 621 int col; 622 623 if (info->flags & FBINFO_HWACCEL_DISABLED) { 624 cfb_fillrect(info, fr); 625 return; 626 } 627 if (info->var.bits_per_pixel == 8) { 628 col = fr->color; 629 col |= col << 8; 630 col |= col << 16; 631 } else 632 col = ((u32 *)(info->pseudo_palette))[fr->color]; 633 634 par->wait_engine(par); 635 par->fill_rect(par, fr->dx, fr->dy, fr->width, 636 fr->height, col, fr->rop); 637} 638 639static void tridentfb_imageblit(struct fb_info *info, 640 const struct fb_image *img) 641{ 642 struct tridentfb_par *par = info->par; 643 int col, bgcol; 644 645 if ((info->flags & FBINFO_HWACCEL_DISABLED) || img->depth != 1) { 646 cfb_imageblit(info, img); 647 return; 648 } 649 if (info->var.bits_per_pixel == 8) { 650 col = img->fg_color; 651 col |= col << 8; 652 col |= col << 16; 653 bgcol = img->bg_color; 654 bgcol |= bgcol << 8; 655 bgcol |= bgcol << 16; 656 } else { 657 col = ((u32 *)(info->pseudo_palette))[img->fg_color]; 658 bgcol = ((u32 *)(info->pseudo_palette))[img->bg_color]; 659 } 660 661 par->wait_engine(par); 662 if (par->image_blit) 663 par->image_blit(par, img->data, img->dx, img->dy, 664 img->width, img->height, col, bgcol); 665 else 666 cfb_imageblit(info, img); 667} 668 669static void tridentfb_copyarea(struct fb_info *info, 670 const struct fb_copyarea *ca) 671{ 672 struct tridentfb_par *par = info->par; 673 674 if (info->flags & FBINFO_HWACCEL_DISABLED) { 675 cfb_copyarea(info, ca); 676 return; 677 } 678 par->wait_engine(par); 679 par->copy_rect(par, ca->sx, ca->sy, ca->dx, ca->dy, 680 ca->width, ca->height); 681} 682 683static int tridentfb_sync(struct fb_info *info) 684{ 685 struct tridentfb_par *par = info->par; 686 687 if (!(info->flags & FBINFO_HWACCEL_DISABLED)) 688 par->wait_engine(par); 689 return 0; 690} 691 692/* 693 * Hardware access functions 694 */ 695 696static inline unsigned char read3X4(struct tridentfb_par *par, int reg) 697{ 698 return vga_mm_rcrt(par->io_virt, reg); 699} 700 701static inline void write3X4(struct tridentfb_par *par, int reg, 702 unsigned char val) 703{ 704 vga_mm_wcrt(par->io_virt, reg, val); 705} 706 707static inline unsigned char read3CE(struct tridentfb_par *par, 708 unsigned char reg) 709{ 710 return vga_mm_rgfx(par->io_virt, reg); 711} 712 713static inline void writeAttr(struct tridentfb_par *par, int reg, 714 unsigned char val) 715{ 716 fb_readb(par->io_virt + VGA_IS1_RC); /* flip-flop to index */ 717 vga_mm_wattr(par->io_virt, reg, val); 718} 719 720static inline void write3CE(struct tridentfb_par *par, int reg, 721 unsigned char val) 722{ 723 vga_mm_wgfx(par->io_virt, reg, val); 724} 725 726static void enable_mmio(struct tridentfb_par *par) 727{ 728 /* Goto New Mode */ 729 vga_io_rseq(0x0B); 730 731 /* Unprotect registers */ 732 vga_io_wseq(NewMode1, 0x80); 733 if (!is_oldprotect(par->chip_id)) 734 vga_io_wseq(Protection, 0x92); 735 736 /* Enable MMIO */ 737 outb(PCIReg, 0x3D4); 738 outb(inb(0x3D5) | 0x01, 0x3D5); 739} 740 741static void disable_mmio(struct tridentfb_par *par) 742{ 743 /* Goto New Mode */ 744 vga_mm_rseq(par->io_virt, 0x0B); 745 746 /* Unprotect registers */ 747 vga_mm_wseq(par->io_virt, NewMode1, 0x80); 748 if (!is_oldprotect(par->chip_id)) 749 vga_mm_wseq(par->io_virt, Protection, 0x92); 750 751 /* Disable MMIO */ 752 t_outb(par, PCIReg, 0x3D4); 753 t_outb(par, t_inb(par, 0x3D5) & ~0x01, 0x3D5); 754} 755 756static inline void crtc_unlock(struct tridentfb_par *par) 757{ 758 write3X4(par, VGA_CRTC_V_SYNC_END, 759 read3X4(par, VGA_CRTC_V_SYNC_END) & 0x7F); 760} 761 762/* Return flat panel's maximum x resolution */ 763static int get_nativex(struct tridentfb_par *par) 764{ 765 int x, y, tmp; 766 767 if (nativex) 768 return nativex; 769 770 tmp = (read3CE(par, VertStretch) >> 4) & 3; 771 772 switch (tmp) { 773 case 0: 774 x = 1280; y = 1024; 775 break; 776 case 2: 777 x = 1024; y = 768; 778 break; 779 case 3: 780 x = 800; y = 600; 781 break; 782 case 1: 783 default: 784 x = 640; y = 480; 785 break; 786 } 787 788 output("%dx%d flat panel found\n", x, y); 789 return x; 790} 791 792/* Set pitch */ 793static inline void set_lwidth(struct tridentfb_par *par, int width) 794{ 795 write3X4(par, VGA_CRTC_OFFSET, width & 0xFF); 796 /* chips older than TGUI9660 have only 1 width bit in AddColReg */ 797 /* touching the other one breaks I2C/DDC */ 798 if (par->chip_id == TGUI9440 || par->chip_id == CYBER9320) 799 write3X4(par, AddColReg, 800 (read3X4(par, AddColReg) & 0xEF) | ((width & 0x100) >> 4)); 801 else 802 write3X4(par, AddColReg, 803 (read3X4(par, AddColReg) & 0xCF) | ((width & 0x300) >> 4)); 804} 805 806/* For resolutions smaller than FP resolution stretch */ 807static void screen_stretch(struct tridentfb_par *par) 808{ 809 if (par->chip_id != CYBERBLADEXPAi1) 810 write3CE(par, BiosReg, 0); 811 else 812 write3CE(par, BiosReg, 8); 813 write3CE(par, VertStretch, (read3CE(par, VertStretch) & 0x7C) | 1); 814 write3CE(par, HorStretch, (read3CE(par, HorStretch) & 0x7C) | 1); 815} 816 817/* For resolutions smaller than FP resolution center */ 818static inline void screen_center(struct tridentfb_par *par) 819{ 820 write3CE(par, VertStretch, (read3CE(par, VertStretch) & 0x7C) | 0x80); 821 write3CE(par, HorStretch, (read3CE(par, HorStretch) & 0x7C) | 0x80); 822} 823 824/* Address of first shown pixel in display memory */ 825static void set_screen_start(struct tridentfb_par *par, int base) 826{ 827 u8 tmp; 828 write3X4(par, VGA_CRTC_START_LO, base & 0xFF); 829 write3X4(par, VGA_CRTC_START_HI, (base & 0xFF00) >> 8); 830 tmp = read3X4(par, CRTCModuleTest) & 0xDF; 831 write3X4(par, CRTCModuleTest, tmp | ((base & 0x10000) >> 11)); 832 tmp = read3X4(par, CRTHiOrd) & 0xF8; 833 write3X4(par, CRTHiOrd, tmp | ((base & 0xE0000) >> 17)); 834} 835 836/* Set dotclock frequency */ 837static void set_vclk(struct tridentfb_par *par, unsigned long freq) 838{ 839 int m, n, k; 840 unsigned long fi, d, di; 841 unsigned char best_m = 0, best_n = 0, best_k = 0; 842 unsigned char hi, lo; 843 unsigned char shift = !is_oldclock(par->chip_id) ? 2 : 1; 844 845 d = 20000; 846 for (k = shift; k >= 0; k--) 847 for (m = 1; m < 32; m++) { 848 n = ((m + 2) << shift) - 8; 849 for (n = (n < 0 ? 0 : n); n < 122; n++) { 850 fi = ((14318l * (n + 8)) / (m + 2)) >> k; 851 di = abs(fi - freq); 852 if (di < d || (di == d && k == best_k)) { 853 d = di; 854 best_n = n; 855 best_m = m; 856 best_k = k; 857 } 858 if (fi > freq) 859 break; 860 } 861 } 862 863 if (is_oldclock(par->chip_id)) { 864 lo = best_n | (best_m << 7); 865 hi = (best_m >> 1) | (best_k << 4); 866 } else { 867 lo = best_n; 868 hi = best_m | (best_k << 6); 869 } 870 871 if (is3Dchip(par->chip_id)) { 872 vga_mm_wseq(par->io_virt, ClockHigh, hi); 873 vga_mm_wseq(par->io_virt, ClockLow, lo); 874 } else { 875 t_outb(par, lo, 0x43C8); 876 t_outb(par, hi, 0x43C9); 877 } 878 debug("VCLK = %X %X\n", hi, lo); 879} 880 881/* Set number of lines for flat panels*/ 882static void set_number_of_lines(struct tridentfb_par *par, int lines) 883{ 884 int tmp = read3CE(par, CyberEnhance) & 0x8F; 885 if (lines > 1024) 886 tmp |= 0x50; 887 else if (lines > 768) 888 tmp |= 0x30; 889 else if (lines > 600) 890 tmp |= 0x20; 891 else if (lines > 480) 892 tmp |= 0x10; 893 write3CE(par, CyberEnhance, tmp); 894} 895 896/* 897 * If we see that FP is active we assume we have one. 898 * Otherwise we have a CRT display. User can override. 899 */ 900static int is_flatpanel(struct tridentfb_par *par) 901{ 902 if (fp) 903 return 1; 904 if (crt || !iscyber(par->chip_id)) 905 return 0; 906 return (read3CE(par, FPConfig) & 0x10) ? 1 : 0; 907} 908 909/* Try detecting the video memory size */ 910static unsigned int get_memsize(struct tridentfb_par *par) 911{ 912 unsigned char tmp, tmp2; 913 unsigned int k; 914 915 /* If memory size provided by user */ 916 if (memsize) 917 k = memsize * Kb; 918 else 919 switch (par->chip_id) { 920 case CYBER9525DVD: 921 k = 2560 * Kb; 922 break; 923 default: 924 tmp = read3X4(par, SPR) & 0x0F; 925 switch (tmp) { 926 927 case 0x01: 928 k = 512 * Kb; 929 break; 930 case 0x02: 931 k = 6 * Mb; /* XP */ 932 break; 933 case 0x03: 934 k = 1 * Mb; 935 break; 936 case 0x04: 937 k = 8 * Mb; 938 break; 939 case 0x06: 940 k = 10 * Mb; /* XP */ 941 break; 942 case 0x07: 943 k = 2 * Mb; 944 break; 945 case 0x08: 946 k = 12 * Mb; /* XP */ 947 break; 948 case 0x0A: 949 k = 14 * Mb; /* XP */ 950 break; 951 case 0x0C: 952 k = 16 * Mb; /* XP */ 953 break; 954 case 0x0E: /* XP */ 955 956 tmp2 = vga_mm_rseq(par->io_virt, 0xC1); 957 switch (tmp2) { 958 case 0x00: 959 k = 20 * Mb; 960 break; 961 case 0x01: 962 k = 24 * Mb; 963 break; 964 case 0x10: 965 k = 28 * Mb; 966 break; 967 case 0x11: 968 k = 32 * Mb; 969 break; 970 default: 971 k = 1 * Mb; 972 break; 973 } 974 break; 975 976 case 0x0F: 977 k = 4 * Mb; 978 break; 979 default: 980 k = 1 * Mb; 981 break; 982 } 983 } 984 985 k -= memdiff * Kb; 986 output("framebuffer size = %d Kb\n", k / Kb); 987 return k; 988} 989 990/* See if we can handle the video mode described in var */ 991static int tridentfb_check_var(struct fb_var_screeninfo *var, 992 struct fb_info *info) 993{ 994 struct tridentfb_par *par = info->par; 995 int bpp = var->bits_per_pixel; 996 int line_length; 997 int ramdac = 230000; /* 230MHz for most 3D chips */ 998 debug("enter\n"); 999 1000 if (!var->pixclock) 1001 return -EINVAL; 1002 1003 /* check color depth */ 1004 if (bpp == 24) 1005 bpp = var->bits_per_pixel = 32; 1006 if (bpp != 8 && bpp != 16 && bpp != 32) 1007 return -EINVAL; 1008 if (par->chip_id == TGUI9440 && bpp == 32) 1009 return -EINVAL; 1010 /* check whether resolution fits on panel and in memory */ 1011 if (par->flatpanel && nativex && var->xres > nativex) 1012 return -EINVAL; 1013 /* various resolution checks */ 1014 var->xres = (var->xres + 7) & ~0x7; 1015 if (var->xres > var->xres_virtual) 1016 var->xres_virtual = var->xres; 1017 if (var->yres > var->yres_virtual) 1018 var->yres_virtual = var->yres; 1019 if (var->xres_virtual > 4095 || var->yres > 2048) 1020 return -EINVAL; 1021 /* prevent from position overflow for acceleration */ 1022 if (var->yres_virtual > 0xffff) 1023 return -EINVAL; 1024 line_length = var->xres_virtual * bpp / 8; 1025 1026 if (!is3Dchip(par->chip_id) && 1027 !(info->flags & FBINFO_HWACCEL_DISABLED)) { 1028 /* acceleration requires line length to be power of 2 */ 1029 if (line_length <= 512) 1030 var->xres_virtual = 512 * 8 / bpp; 1031 else if (line_length <= 1024) 1032 var->xres_virtual = 1024 * 8 / bpp; 1033 else if (line_length <= 2048) 1034 var->xres_virtual = 2048 * 8 / bpp; 1035 else if (line_length <= 4096) 1036 var->xres_virtual = 4096 * 8 / bpp; 1037 else if (line_length <= 8192) 1038 var->xres_virtual = 8192 * 8 / bpp; 1039 else 1040 return -EINVAL; 1041 1042 line_length = var->xres_virtual * bpp / 8; 1043 } 1044 1045 /* datasheet specifies how to set panning only up to 4 MB */ 1046 if (line_length * (var->yres_virtual - var->yres) > (4 << 20)) 1047 var->yres_virtual = ((4 << 20) / line_length) + var->yres; 1048 1049 if (line_length * var->yres_virtual > info->fix.smem_len) 1050 return -EINVAL; 1051 1052 switch (bpp) { 1053 case 8: 1054 var->red.offset = 0; 1055 var->red.length = 8; 1056 var->green = var->red; 1057 var->blue = var->red; 1058 break; 1059 case 16: 1060 var->red.offset = 11; 1061 var->green.offset = 5; 1062 var->blue.offset = 0; 1063 var->red.length = 5; 1064 var->green.length = 6; 1065 var->blue.length = 5; 1066 break; 1067 case 32: 1068 var->red.offset = 16; 1069 var->green.offset = 8; 1070 var->blue.offset = 0; 1071 var->red.length = 8; 1072 var->green.length = 8; 1073 var->blue.length = 8; 1074 break; 1075 default: 1076 return -EINVAL; 1077 } 1078 1079 if (is_xp(par->chip_id)) 1080 ramdac = 350000; 1081 1082 switch (par->chip_id) { 1083 case TGUI9440: 1084 ramdac = (bpp >= 16) ? 45000 : 90000; 1085 break; 1086 case CYBER9320: 1087 case TGUI9660: 1088 ramdac = 135000; 1089 break; 1090 case PROVIDIA9685: 1091 case CYBER9388: 1092 case CYBER9382: 1093 case CYBER9385: 1094 ramdac = 170000; 1095 break; 1096 } 1097 1098 /* The clock is doubled for 32 bpp */ 1099 if (bpp == 32) 1100 ramdac /= 2; 1101 1102 if (PICOS2KHZ(var->pixclock) > ramdac) 1103 return -EINVAL; 1104 1105 debug("exit\n"); 1106 1107 return 0; 1108 1109} 1110 1111/* Pan the display */ 1112static int tridentfb_pan_display(struct fb_var_screeninfo *var, 1113 struct fb_info *info) 1114{ 1115 struct tridentfb_par *par = info->par; 1116 unsigned int offset; 1117 1118 debug("enter\n"); 1119 offset = (var->xoffset + (var->yoffset * info->var.xres_virtual)) 1120 * info->var.bits_per_pixel / 32; 1121 set_screen_start(par, offset); 1122 debug("exit\n"); 1123 return 0; 1124} 1125 1126static inline void shadowmode_on(struct tridentfb_par *par) 1127{ 1128 write3CE(par, CyberControl, read3CE(par, CyberControl) | 0x81); 1129} 1130 1131/* Set the hardware to the requested video mode */ 1132static int tridentfb_set_par(struct fb_info *info) 1133{ 1134 struct tridentfb_par *par = info->par; 1135 u32 htotal, hdispend, hsyncstart, hsyncend, hblankstart, hblankend; 1136 u32 vtotal, vdispend, vsyncstart, vsyncend, vblankstart, vblankend; 1137 struct fb_var_screeninfo *var = &info->var; 1138 int bpp = var->bits_per_pixel; 1139 unsigned char tmp; 1140 unsigned long vclk; 1141 1142 debug("enter\n"); 1143 hdispend = var->xres / 8 - 1; 1144 hsyncstart = (var->xres + var->right_margin) / 8; 1145 hsyncend = (var->xres + var->right_margin + var->hsync_len) / 8; 1146 htotal = (var->xres + var->left_margin + var->right_margin + 1147 var->hsync_len) / 8 - 5; 1148 hblankstart = hdispend + 1; 1149 hblankend = htotal + 3; 1150 1151 vdispend = var->yres - 1; 1152 vsyncstart = var->yres + var->lower_margin; 1153 vsyncend = vsyncstart + var->vsync_len; 1154 vtotal = var->upper_margin + vsyncend - 2; 1155 vblankstart = vdispend + 1; 1156 vblankend = vtotal; 1157 1158 if (info->var.vmode & FB_VMODE_INTERLACED) { 1159 vtotal /= 2; 1160 vdispend /= 2; 1161 vsyncstart /= 2; 1162 vsyncend /= 2; 1163 vblankstart /= 2; 1164 vblankend /= 2; 1165 } 1166 1167 enable_mmio(par); 1168 crtc_unlock(par); 1169 write3CE(par, CyberControl, 8); 1170 tmp = 0xEB; 1171 if (var->sync & FB_SYNC_HOR_HIGH_ACT) 1172 tmp &= ~0x40; 1173 if (var->sync & FB_SYNC_VERT_HIGH_ACT) 1174 tmp &= ~0x80; 1175 1176 if (par->flatpanel && var->xres < nativex) { 1177 /* 1178 * on flat panels with native size larger 1179 * than requested resolution decide whether 1180 * we stretch or center 1181 */ 1182 t_outb(par, tmp | 0xC0, VGA_MIS_W); 1183 1184 shadowmode_on(par); 1185 1186 if (center) 1187 screen_center(par); 1188 else if (stretch) 1189 screen_stretch(par); 1190 1191 } else { 1192 t_outb(par, tmp, VGA_MIS_W); 1193 write3CE(par, CyberControl, 8); 1194 } 1195 1196 /* vertical timing values */ 1197 write3X4(par, VGA_CRTC_V_TOTAL, vtotal & 0xFF); 1198 write3X4(par, VGA_CRTC_V_DISP_END, vdispend & 0xFF); 1199 write3X4(par, VGA_CRTC_V_SYNC_START, vsyncstart & 0xFF); 1200 write3X4(par, VGA_CRTC_V_SYNC_END, (vsyncend & 0x0F)); 1201 write3X4(par, VGA_CRTC_V_BLANK_START, vblankstart & 0xFF); 1202 write3X4(par, VGA_CRTC_V_BLANK_END, vblankend & 0xFF); 1203 1204 /* horizontal timing values */ 1205 write3X4(par, VGA_CRTC_H_TOTAL, htotal & 0xFF); 1206 write3X4(par, VGA_CRTC_H_DISP, hdispend & 0xFF); 1207 write3X4(par, VGA_CRTC_H_SYNC_START, hsyncstart & 0xFF); 1208 write3X4(par, VGA_CRTC_H_SYNC_END, 1209 (hsyncend & 0x1F) | ((hblankend & 0x20) << 2)); 1210 write3X4(par, VGA_CRTC_H_BLANK_START, hblankstart & 0xFF); 1211 write3X4(par, VGA_CRTC_H_BLANK_END, hblankend & 0x1F); 1212 1213 /* higher bits of vertical timing values */ 1214 tmp = 0x10; 1215 if (vtotal & 0x100) tmp |= 0x01; 1216 if (vdispend & 0x100) tmp |= 0x02; 1217 if (vsyncstart & 0x100) tmp |= 0x04; 1218 if (vblankstart & 0x100) tmp |= 0x08; 1219 1220 if (vtotal & 0x200) tmp |= 0x20; 1221 if (vdispend & 0x200) tmp |= 0x40; 1222 if (vsyncstart & 0x200) tmp |= 0x80; 1223 write3X4(par, VGA_CRTC_OVERFLOW, tmp); 1224 1225 tmp = read3X4(par, CRTHiOrd) & 0x07; 1226 tmp |= 0x08; /* line compare bit 10 */ 1227 if (vtotal & 0x400) tmp |= 0x80; 1228 if (vblankstart & 0x400) tmp |= 0x40; 1229 if (vsyncstart & 0x400) tmp |= 0x20; 1230 if (vdispend & 0x400) tmp |= 0x10; 1231 write3X4(par, CRTHiOrd, tmp); 1232 1233 tmp = (htotal >> 8) & 0x01; 1234 tmp |= (hdispend >> 7) & 0x02; 1235 tmp |= (hsyncstart >> 5) & 0x08; 1236 tmp |= (hblankstart >> 4) & 0x10; 1237 write3X4(par, HorizOverflow, tmp); 1238 1239 tmp = 0x40; 1240 if (vblankstart & 0x200) tmp |= 0x20; 1241//FIXME if (info->var.vmode & FB_VMODE_DOUBLE) tmp |= 0x80; /* double scan for 200 line modes */ 1242 write3X4(par, VGA_CRTC_MAX_SCAN, tmp); 1243 1244 write3X4(par, VGA_CRTC_LINE_COMPARE, 0xFF); 1245 write3X4(par, VGA_CRTC_PRESET_ROW, 0); 1246 write3X4(par, VGA_CRTC_MODE, 0xC3); 1247 1248 write3X4(par, LinearAddReg, 0x20); /* enable linear addressing */ 1249 1250 tmp = (info->var.vmode & FB_VMODE_INTERLACED) ? 0x84 : 0x80; 1251 /* enable access extended memory */ 1252 write3X4(par, CRTCModuleTest, tmp); 1253 tmp = read3CE(par, MiscIntContReg) & ~0x4; 1254 if (info->var.vmode & FB_VMODE_INTERLACED) 1255 tmp |= 0x4; 1256 write3CE(par, MiscIntContReg, tmp); 1257 1258 /* enable GE for text acceleration */ 1259 write3X4(par, GraphEngReg, 0x80); 1260 1261 switch (bpp) { 1262 case 8: 1263 tmp = 0x00; 1264 break; 1265 case 16: 1266 tmp = 0x05; 1267 break; 1268 case 24: 1269 tmp = 0x29; 1270 break; 1271 case 32: 1272 tmp = 0x09; 1273 break; 1274 } 1275 1276 write3X4(par, PixelBusReg, tmp); 1277 1278 tmp = read3X4(par, DRAMControl); 1279 if (!is_oldprotect(par->chip_id)) 1280 tmp |= 0x10; 1281 if (iscyber(par->chip_id)) 1282 tmp |= 0x20; 1283 write3X4(par, DRAMControl, tmp); /* both IO, linear enable */ 1284 1285 write3X4(par, InterfaceSel, read3X4(par, InterfaceSel) | 0x40); 1286 if (!is_xp(par->chip_id)) 1287 write3X4(par, Performance, read3X4(par, Performance) | 0x10); 1288 /* MMIO & PCI read and write burst enable */ 1289 if (par->chip_id != TGUI9440 && par->chip_id != IMAGE975) 1290 write3X4(par, PCIReg, read3X4(par, PCIReg) | 0x06); 1291 1292 vga_mm_wseq(par->io_virt, 0, 3); 1293 vga_mm_wseq(par->io_virt, 1, 1); /* set char clock 8 dots wide */ 1294 /* enable 4 maps because needed in chain4 mode */ 1295 vga_mm_wseq(par->io_virt, 2, 0x0F); 1296 vga_mm_wseq(par->io_virt, 3, 0); 1297 vga_mm_wseq(par->io_virt, 4, 0x0E); /* memory mode enable bitmaps ?? */ 1298 1299 /* convert from picoseconds to kHz */ 1300 vclk = PICOS2KHZ(info->var.pixclock); 1301 1302 /* divide clock by 2 if 32bpp chain4 mode display and CPU path */ 1303 tmp = read3CE(par, MiscExtFunc) & 0xF0; 1304 if (bpp == 32 || (par->chip_id == TGUI9440 && bpp == 16)) { 1305 tmp |= 8; 1306 vclk *= 2; 1307 } 1308 set_vclk(par, vclk); 1309 write3CE(par, MiscExtFunc, tmp | 0x12); 1310 write3CE(par, 0x5, 0x40); /* no CGA compat, allow 256 col */ 1311 write3CE(par, 0x6, 0x05); /* graphics mode */ 1312 write3CE(par, 0x7, 0x0F); /* planes? */ 1313 1314 /* graphics mode and support 256 color modes */ 1315 writeAttr(par, 0x10, 0x41); 1316 writeAttr(par, 0x12, 0x0F); /* planes */ 1317 writeAttr(par, 0x13, 0); /* horizontal pel panning */ 1318 1319 /* colors */ 1320 for (tmp = 0; tmp < 0x10; tmp++) 1321 writeAttr(par, tmp, tmp); 1322 fb_readb(par->io_virt + VGA_IS1_RC); /* flip-flop to index */ 1323 t_outb(par, 0x20, VGA_ATT_W); /* enable attr */ 1324 1325 switch (bpp) { 1326 case 8: 1327 tmp = 0; 1328 break; 1329 case 16: 1330 tmp = 0x30; 1331 break; 1332 case 24: 1333 case 32: 1334 tmp = 0xD0; 1335 break; 1336 } 1337 1338 t_inb(par, VGA_PEL_IW); 1339 t_inb(par, VGA_PEL_MSK); 1340 t_inb(par, VGA_PEL_MSK); 1341 t_inb(par, VGA_PEL_MSK); 1342 t_inb(par, VGA_PEL_MSK); 1343 t_outb(par, tmp, VGA_PEL_MSK); 1344 t_inb(par, VGA_PEL_IW); 1345 1346 if (par->flatpanel) 1347 set_number_of_lines(par, info->var.yres); 1348 info->fix.line_length = info->var.xres_virtual * bpp / 8; 1349 set_lwidth(par, info->fix.line_length / 8); 1350 1351 if (!(info->flags & FBINFO_HWACCEL_DISABLED)) 1352 par->init_accel(par, info->var.xres_virtual, bpp); 1353 1354 info->fix.visual = (bpp == 8) ? FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_TRUECOLOR; 1355 info->cmap.len = (bpp == 8) ? 256 : 16; 1356 debug("exit\n"); 1357 return 0; 1358} 1359 1360/* Set one color register */ 1361static int tridentfb_setcolreg(unsigned regno, unsigned red, unsigned green, 1362 unsigned blue, unsigned transp, 1363 struct fb_info *info) 1364{ 1365 int bpp = info->var.bits_per_pixel; 1366 struct tridentfb_par *par = info->par; 1367 1368 if (regno >= info->cmap.len) 1369 return 1; 1370 1371 if (bpp == 8) { 1372 t_outb(par, 0xFF, VGA_PEL_MSK); 1373 t_outb(par, regno, VGA_PEL_IW); 1374 1375 t_outb(par, red >> 10, VGA_PEL_D); 1376 t_outb(par, green >> 10, VGA_PEL_D); 1377 t_outb(par, blue >> 10, VGA_PEL_D); 1378 1379 } else if (regno < 16) { 1380 if (bpp == 16) { /* RGB 565 */ 1381 u32 col; 1382 1383 col = (red & 0xF800) | ((green & 0xFC00) >> 5) | 1384 ((blue & 0xF800) >> 11); 1385 col |= col << 16; 1386 ((u32 *)(info->pseudo_palette))[regno] = col; 1387 } else if (bpp == 32) /* ARGB 8888 */ 1388 ((u32 *)info->pseudo_palette)[regno] = 1389 ((transp & 0xFF00) << 16) | 1390 ((red & 0xFF00) << 8) | 1391 ((green & 0xFF00)) | 1392 ((blue & 0xFF00) >> 8); 1393 } 1394 1395 return 0; 1396} 1397 1398/* Try blanking the screen. For flat panels it does nothing */ 1399static int tridentfb_blank(int blank_mode, struct fb_info *info) 1400{ 1401 unsigned char PMCont, DPMSCont; 1402 struct tridentfb_par *par = info->par; 1403 1404 debug("enter\n"); 1405 if (par->flatpanel) 1406 return 0; 1407 t_outb(par, 0x04, 0x83C8); /* Read DPMS Control */ 1408 PMCont = t_inb(par, 0x83C6) & 0xFC; 1409 DPMSCont = read3CE(par, PowerStatus) & 0xFC; 1410 switch (blank_mode) { 1411 case FB_BLANK_UNBLANK: 1412 /* Screen: On, HSync: On, VSync: On */ 1413 case FB_BLANK_NORMAL: 1414 /* Screen: Off, HSync: On, VSync: On */ 1415 PMCont |= 0x03; 1416 DPMSCont |= 0x00; 1417 break; 1418 case FB_BLANK_HSYNC_SUSPEND: 1419 /* Screen: Off, HSync: Off, VSync: On */ 1420 PMCont |= 0x02; 1421 DPMSCont |= 0x01; 1422 break; 1423 case FB_BLANK_VSYNC_SUSPEND: 1424 /* Screen: Off, HSync: On, VSync: Off */ 1425 PMCont |= 0x02; 1426 DPMSCont |= 0x02; 1427 break; 1428 case FB_BLANK_POWERDOWN: 1429 /* Screen: Off, HSync: Off, VSync: Off */ 1430 PMCont |= 0x00; 1431 DPMSCont |= 0x03; 1432 break; 1433 } 1434 1435 write3CE(par, PowerStatus, DPMSCont); 1436 t_outb(par, 4, 0x83C8); 1437 t_outb(par, PMCont, 0x83C6); 1438 1439 debug("exit\n"); 1440 1441 /* let fbcon do a softblank for us */ 1442 return (blank_mode == FB_BLANK_NORMAL) ? 1 : 0; 1443} 1444 1445static const struct fb_ops tridentfb_ops = { 1446 .owner = THIS_MODULE, 1447 .fb_setcolreg = tridentfb_setcolreg, 1448 .fb_pan_display = tridentfb_pan_display, 1449 .fb_blank = tridentfb_blank, 1450 .fb_check_var = tridentfb_check_var, 1451 .fb_set_par = tridentfb_set_par, 1452 .fb_fillrect = tridentfb_fillrect, 1453 .fb_copyarea = tridentfb_copyarea, 1454 .fb_imageblit = tridentfb_imageblit, 1455 .fb_sync = tridentfb_sync, 1456}; 1457 1458static int trident_pci_probe(struct pci_dev *dev, 1459 const struct pci_device_id *id) 1460{ 1461 int err; 1462 unsigned char revision; 1463 struct fb_info *info; 1464 struct tridentfb_par *default_par; 1465 int chip3D; 1466 int chip_id; 1467 bool found = false; 1468 1469 err = aperture_remove_conflicting_pci_devices(dev, "tridentfb"); 1470 if (err) 1471 return err; 1472 1473 err = pcim_enable_device(dev); 1474 if (err) 1475 return err; 1476 1477 info = framebuffer_alloc(sizeof(struct tridentfb_par), &dev->dev); 1478 if (!info) 1479 return -ENOMEM; 1480 default_par = info->par; 1481 1482 chip_id = id->device; 1483 1484 /* If PCI id is 0x9660 then further detect chip type */ 1485 1486 if (chip_id == TGUI9660) { 1487 revision = vga_io_rseq(RevisionID); 1488 1489 switch (revision) { 1490 case 0x21: 1491 chip_id = PROVIDIA9685; 1492 break; 1493 case 0x22: 1494 case 0x23: 1495 chip_id = CYBER9397; 1496 break; 1497 case 0x2A: 1498 chip_id = CYBER9397DVD; 1499 break; 1500 case 0x30: 1501 case 0x33: 1502 case 0x34: 1503 case 0x35: 1504 case 0x38: 1505 case 0x3A: 1506 case 0xB3: 1507 chip_id = CYBER9385; 1508 break; 1509 case 0x40 ... 0x43: 1510 chip_id = CYBER9382; 1511 break; 1512 case 0x4A: 1513 chip_id = CYBER9388; 1514 break; 1515 default: 1516 break; 1517 } 1518 } 1519 1520 chip3D = is3Dchip(chip_id); 1521 1522 if (is_xp(chip_id)) { 1523 default_par->init_accel = xp_init_accel; 1524 default_par->wait_engine = xp_wait_engine; 1525 default_par->fill_rect = xp_fill_rect; 1526 default_par->copy_rect = xp_copy_rect; 1527 tridentfb_fix.accel = FB_ACCEL_TRIDENT_BLADEXP; 1528 } else if (is_blade(chip_id)) { 1529 default_par->init_accel = blade_init_accel; 1530 default_par->wait_engine = blade_wait_engine; 1531 default_par->fill_rect = blade_fill_rect; 1532 default_par->copy_rect = blade_copy_rect; 1533 default_par->image_blit = blade_image_blit; 1534 tridentfb_fix.accel = FB_ACCEL_TRIDENT_BLADE3D; 1535 } else if (chip3D) { /* 3DImage family left */ 1536 default_par->init_accel = image_init_accel; 1537 default_par->wait_engine = image_wait_engine; 1538 default_par->fill_rect = image_fill_rect; 1539 default_par->copy_rect = image_copy_rect; 1540 tridentfb_fix.accel = FB_ACCEL_TRIDENT_3DIMAGE; 1541 } else { /* TGUI 9440/96XX family */ 1542 default_par->init_accel = tgui_init_accel; 1543 default_par->wait_engine = xp_wait_engine; 1544 default_par->fill_rect = tgui_fill_rect; 1545 default_par->copy_rect = tgui_copy_rect; 1546 tridentfb_fix.accel = FB_ACCEL_TRIDENT_TGUI; 1547 } 1548 1549 default_par->chip_id = chip_id; 1550 1551 /* setup MMIO region */ 1552 tridentfb_fix.mmio_start = pci_resource_start(dev, 1); 1553 tridentfb_fix.mmio_len = pci_resource_len(dev, 1); 1554 1555 if (!request_mem_region(tridentfb_fix.mmio_start, 1556 tridentfb_fix.mmio_len, "tridentfb")) { 1557 debug("request_region failed!\n"); 1558 framebuffer_release(info); 1559 return -1; 1560 } 1561 1562 default_par->io_virt = ioremap(tridentfb_fix.mmio_start, 1563 tridentfb_fix.mmio_len); 1564 1565 if (!default_par->io_virt) { 1566 debug("ioremap failed\n"); 1567 err = -1; 1568 goto out_unmap1; 1569 } 1570 1571 enable_mmio(default_par); 1572 1573 /* setup framebuffer memory */ 1574 tridentfb_fix.smem_start = pci_resource_start(dev, 0); 1575 tridentfb_fix.smem_len = get_memsize(default_par); 1576 1577 if (!request_mem_region(tridentfb_fix.smem_start, 1578 tridentfb_fix.smem_len, "tridentfb")) { 1579 debug("request_mem_region failed!\n"); 1580 disable_mmio(info->par); 1581 err = -1; 1582 goto out_unmap1; 1583 } 1584 1585 info->screen_base = ioremap(tridentfb_fix.smem_start, 1586 tridentfb_fix.smem_len); 1587 1588 if (!info->screen_base) { 1589 debug("ioremap failed\n"); 1590 err = -1; 1591 goto out_unmap2; 1592 } 1593 1594 default_par->flatpanel = is_flatpanel(default_par); 1595 1596 if (default_par->flatpanel) 1597 nativex = get_nativex(default_par); 1598 1599 info->fix = tridentfb_fix; 1600 info->fbops = &tridentfb_ops; 1601 info->pseudo_palette = default_par->pseudo_pal; 1602 1603 info->flags = FBINFO_HWACCEL_YPAN; 1604 if (!noaccel && default_par->init_accel) { 1605 info->flags &= ~FBINFO_HWACCEL_DISABLED; 1606 info->flags |= FBINFO_HWACCEL_COPYAREA; 1607 info->flags |= FBINFO_HWACCEL_FILLRECT; 1608 } else 1609 info->flags |= FBINFO_HWACCEL_DISABLED; 1610 1611 if (is_blade(chip_id) && chip_id != BLADE3D) 1612 info->flags |= FBINFO_READS_FAST; 1613 1614 info->pixmap.addr = kmalloc(4096, GFP_KERNEL); 1615 if (!info->pixmap.addr) { 1616 err = -ENOMEM; 1617 goto out_unmap2; 1618 } 1619 1620 info->pixmap.size = 4096; 1621 info->pixmap.buf_align = 4; 1622 info->pixmap.scan_align = 1; 1623 info->pixmap.access_align = 32; 1624 info->pixmap.flags = FB_PIXMAP_SYSTEM; 1625 info->var.bits_per_pixel = 8; 1626 1627 if (default_par->image_blit) { 1628 info->flags |= FBINFO_HWACCEL_IMAGEBLIT; 1629 info->pixmap.scan_align = 4; 1630 } 1631 1632 if (noaccel) { 1633 printk(KERN_DEBUG "disabling acceleration\n"); 1634 info->flags |= FBINFO_HWACCEL_DISABLED; 1635 info->pixmap.scan_align = 1; 1636 } 1637 1638 if (tridentfb_setup_ddc_bus(info) == 0) { 1639 u8 *edid = fb_ddc_read(&default_par->ddc_adapter); 1640 1641 default_par->ddc_registered = true; 1642 if (edid) { 1643 fb_edid_to_monspecs(edid, &info->monspecs); 1644 kfree(edid); 1645 if (!info->monspecs.modedb) 1646 dev_err(info->device, "error getting mode database\n"); 1647 else { 1648 const struct fb_videomode *m; 1649 1650 fb_videomode_to_modelist(info->monspecs.modedb, 1651 info->monspecs.modedb_len, 1652 &info->modelist); 1653 m = fb_find_best_display(&info->monspecs, 1654 &info->modelist); 1655 if (m) { 1656 fb_videomode_to_var(&info->var, m); 1657 /* fill all other info->var's fields */ 1658 if (tridentfb_check_var(&info->var, 1659 info) == 0) 1660 found = true; 1661 } 1662 } 1663 } 1664 } 1665 1666 if (!mode_option && !found) 1667 mode_option = "640x480-8@60"; 1668 1669 /* Prepare startup mode */ 1670 if (mode_option) { 1671 err = fb_find_mode(&info->var, info, mode_option, 1672 info->monspecs.modedb, 1673 info->monspecs.modedb_len, 1674 NULL, info->var.bits_per_pixel); 1675 if (!err || err == 4) { 1676 err = -EINVAL; 1677 dev_err(info->device, "mode %s not found\n", 1678 mode_option); 1679 fb_destroy_modedb(info->monspecs.modedb); 1680 info->monspecs.modedb = NULL; 1681 goto out_unmap2; 1682 } 1683 } 1684 1685 fb_destroy_modedb(info->monspecs.modedb); 1686 info->monspecs.modedb = NULL; 1687 1688 err = fb_alloc_cmap(&info->cmap, 256, 0); 1689 if (err < 0) 1690 goto out_unmap2; 1691 1692 info->var.activate |= FB_ACTIVATE_NOW; 1693 info->device = &dev->dev; 1694 if (register_framebuffer(info) < 0) { 1695 printk(KERN_ERR "tridentfb: could not register framebuffer\n"); 1696 fb_dealloc_cmap(&info->cmap); 1697 err = -EINVAL; 1698 goto out_unmap2; 1699 } 1700 output("fb%d: %s frame buffer device %dx%d-%dbpp\n", 1701 info->node, info->fix.id, info->var.xres, 1702 info->var.yres, info->var.bits_per_pixel); 1703 1704 pci_set_drvdata(dev, info); 1705 return 0; 1706 1707out_unmap2: 1708 if (default_par->ddc_registered) 1709 i2c_del_adapter(&default_par->ddc_adapter); 1710 kfree(info->pixmap.addr); 1711 if (info->screen_base) 1712 iounmap(info->screen_base); 1713 disable_mmio(info->par); 1714out_unmap1: 1715 if (default_par->io_virt) 1716 iounmap(default_par->io_virt); 1717 framebuffer_release(info); 1718 return err; 1719} 1720 1721static void trident_pci_remove(struct pci_dev *dev) 1722{ 1723 struct fb_info *info = pci_get_drvdata(dev); 1724 struct tridentfb_par *par = info->par; 1725 1726 unregister_framebuffer(info); 1727 if (par->ddc_registered) 1728 i2c_del_adapter(&par->ddc_adapter); 1729 iounmap(par->io_virt); 1730 iounmap(info->screen_base); 1731 kfree(info->pixmap.addr); 1732 fb_dealloc_cmap(&info->cmap); 1733 framebuffer_release(info); 1734} 1735 1736/* List of boards that we are trying to support */ 1737static const struct pci_device_id trident_devices[] = { 1738 {PCI_VENDOR_ID_TRIDENT, BLADE3D, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, 1739 {PCI_VENDOR_ID_TRIDENT, CYBERBLADEi7, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, 1740 {PCI_VENDOR_ID_TRIDENT, CYBERBLADEi7D, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, 1741 {PCI_VENDOR_ID_TRIDENT, CYBERBLADEi1, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, 1742 {PCI_VENDOR_ID_TRIDENT, CYBERBLADEi1D, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, 1743 {PCI_VENDOR_ID_TRIDENT, CYBERBLADEAi1, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, 1744 {PCI_VENDOR_ID_TRIDENT, CYBERBLADEAi1D, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, 1745 {PCI_VENDOR_ID_TRIDENT, CYBERBLADEE4, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, 1746 {PCI_VENDOR_ID_TRIDENT, TGUI9440, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, 1747 {PCI_VENDOR_ID_TRIDENT, TGUI9660, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, 1748 {PCI_VENDOR_ID_TRIDENT, IMAGE975, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, 1749 {PCI_VENDOR_ID_TRIDENT, IMAGE985, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, 1750 {PCI_VENDOR_ID_TRIDENT, CYBER9320, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, 1751 {PCI_VENDOR_ID_TRIDENT, CYBER9388, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, 1752 {PCI_VENDOR_ID_TRIDENT, CYBER9520, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, 1753 {PCI_VENDOR_ID_TRIDENT, CYBER9525DVD, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, 1754 {PCI_VENDOR_ID_TRIDENT, CYBER9397, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, 1755 {PCI_VENDOR_ID_TRIDENT, CYBER9397DVD, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, 1756 {PCI_VENDOR_ID_TRIDENT, CYBERBLADEXPAi1, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, 1757 {PCI_VENDOR_ID_TRIDENT, CYBERBLADEXPm8, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, 1758 {PCI_VENDOR_ID_TRIDENT, CYBERBLADEXPm16, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, 1759 {0,} 1760}; 1761 1762MODULE_DEVICE_TABLE(pci, trident_devices); 1763 1764static struct pci_driver tridentfb_pci_driver = { 1765 .name = "tridentfb", 1766 .id_table = trident_devices, 1767 .probe = trident_pci_probe, 1768 .remove = trident_pci_remove, 1769}; 1770 1771/* 1772 * Parse user specified options (`video=trident:') 1773 * example: 1774 * video=trident:800x600,bpp=16,noaccel 1775 */ 1776#ifndef MODULE 1777static int __init tridentfb_setup(char *options) 1778{ 1779 char *opt; 1780 if (!options || !*options) 1781 return 0; 1782 while ((opt = strsep(&options, ",")) != NULL) { 1783 if (!*opt) 1784 continue; 1785 if (!strncmp(opt, "noaccel", 7)) 1786 noaccel = 1; 1787 else if (!strncmp(opt, "fp", 2)) 1788 fp = 1; 1789 else if (!strncmp(opt, "crt", 3)) 1790 fp = 0; 1791 else if (!strncmp(opt, "bpp=", 4)) 1792 bpp = simple_strtoul(opt + 4, NULL, 0); 1793 else if (!strncmp(opt, "center", 6)) 1794 center = 1; 1795 else if (!strncmp(opt, "stretch", 7)) 1796 stretch = 1; 1797 else if (!strncmp(opt, "memsize=", 8)) 1798 memsize = simple_strtoul(opt + 8, NULL, 0); 1799 else if (!strncmp(opt, "memdiff=", 8)) 1800 memdiff = simple_strtoul(opt + 8, NULL, 0); 1801 else if (!strncmp(opt, "nativex=", 8)) 1802 nativex = simple_strtoul(opt + 8, NULL, 0); 1803 else 1804 mode_option = opt; 1805 } 1806 return 0; 1807} 1808#endif 1809 1810static int __init tridentfb_init(void) 1811{ 1812#ifndef MODULE 1813 char *option = NULL; 1814#endif 1815 1816 if (fb_modesetting_disabled("tridentfb")) 1817 return -ENODEV; 1818 1819#ifndef MODULE 1820 if (fb_get_options("tridentfb", &option)) 1821 return -ENODEV; 1822 tridentfb_setup(option); 1823#endif 1824 return pci_register_driver(&tridentfb_pci_driver); 1825} 1826 1827static void __exit tridentfb_exit(void) 1828{ 1829 pci_unregister_driver(&tridentfb_pci_driver); 1830} 1831 1832module_init(tridentfb_init); 1833module_exit(tridentfb_exit); 1834 1835MODULE_AUTHOR("Jani Monoses <jani@iv.ro>"); 1836MODULE_DESCRIPTION("Framebuffer driver for Trident cards"); 1837MODULE_LICENSE("GPL"); 1838MODULE_ALIAS("cyblafb"); 1839 1840