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.algo_data = &par->ddc_algo; 278 par->ddc_adapter.dev.parent = info->device; 279 if (is_oldclock(par->chip_id)) { /* not sure if this check is OK */ 280 par->ddc_algo.setsda = tridentfb_ddc_setsda_tgui; 281 par->ddc_algo.setscl = tridentfb_ddc_setscl_tgui; 282 par->ddc_algo.getsda = tridentfb_ddc_getsda_tgui; 283 /* no getscl */ 284 } else { 285 par->ddc_algo.setsda = tridentfb_ddc_setsda; 286 par->ddc_algo.setscl = tridentfb_ddc_setscl; 287 par->ddc_algo.getsda = tridentfb_ddc_getsda; 288 par->ddc_algo.getscl = tridentfb_ddc_getscl; 289 } 290 par->ddc_algo.udelay = 10; 291 par->ddc_algo.timeout = 20; 292 par->ddc_algo.data = par; 293 294 i2c_set_adapdata(&par->ddc_adapter, par); 295 296 return i2c_bit_add_bus(&par->ddc_adapter); 297} 298 299/* 300 * Blade specific acceleration. 301 */ 302 303#define point(x, y) ((y) << 16 | (x)) 304 305static void blade_init_accel(struct tridentfb_par *par, int pitch, int bpp) 306{ 307 int v1 = (pitch >> 3) << 20; 308 int tmp = bpp == 24 ? 2 : (bpp >> 4); 309 int v2 = v1 | (tmp << 29); 310 311 writemmr(par, 0x21C0, v2); 312 writemmr(par, 0x21C4, v2); 313 writemmr(par, 0x21B8, v2); 314 writemmr(par, 0x21BC, v2); 315 writemmr(par, 0x21D0, v1); 316 writemmr(par, 0x21D4, v1); 317 writemmr(par, 0x21C8, v1); 318 writemmr(par, 0x21CC, v1); 319 writemmr(par, 0x216C, 0); 320} 321 322static void blade_wait_engine(struct tridentfb_par *par) 323{ 324 while (readmmr(par, STATUS) & 0xFA800000) 325 cpu_relax(); 326} 327 328static void blade_fill_rect(struct tridentfb_par *par, 329 u32 x, u32 y, u32 w, u32 h, u32 c, u32 rop) 330{ 331 writemmr(par, COLOR, c); 332 writemmr(par, ROP, rop ? ROP_X : ROP_S); 333 writemmr(par, CMD, 0x20000000 | 1 << 19 | 1 << 4 | 2 << 2); 334 335 writemmr(par, DST1, point(x, y)); 336 writemmr(par, DST2, point(x + w - 1, y + h - 1)); 337} 338 339static void blade_image_blit(struct tridentfb_par *par, const char *data, 340 u32 x, u32 y, u32 w, u32 h, u32 c, u32 b) 341{ 342 unsigned size = ((w + 31) >> 5) * h; 343 344 writemmr(par, COLOR, c); 345 writemmr(par, BGCOLOR, b); 346 writemmr(par, CMD, 0xa0000000 | 3 << 19); 347 348 writemmr(par, DST1, point(x, y)); 349 writemmr(par, DST2, point(x + w - 1, y + h - 1)); 350 351 iowrite32_rep(par->io_virt + 0x10000, data, size); 352} 353 354static void blade_copy_rect(struct tridentfb_par *par, 355 u32 x1, u32 y1, u32 x2, u32 y2, u32 w, u32 h) 356{ 357 int direction = 2; 358 u32 s1 = point(x1, y1); 359 u32 s2 = point(x1 + w - 1, y1 + h - 1); 360 u32 d1 = point(x2, y2); 361 u32 d2 = point(x2 + w - 1, y2 + h - 1); 362 363 if ((y1 > y2) || ((y1 == y2) && (x1 > x2))) 364 direction = 0; 365 366 writemmr(par, ROP, ROP_S); 367 writemmr(par, CMD, 0xE0000000 | 1 << 19 | 1 << 4 | 1 << 2 | direction); 368 369 writemmr(par, SRC1, direction ? s2 : s1); 370 writemmr(par, SRC2, direction ? s1 : s2); 371 writemmr(par, DST1, direction ? d2 : d1); 372 writemmr(par, DST2, direction ? d1 : d2); 373} 374 375/* 376 * BladeXP specific acceleration functions 377 */ 378 379static void xp_init_accel(struct tridentfb_par *par, int pitch, int bpp) 380{ 381 unsigned char x = bpp == 24 ? 3 : (bpp >> 4); 382 int v1 = pitch << (bpp == 24 ? 20 : (18 + x)); 383 384 switch (pitch << (bpp >> 3)) { 385 case 8192: 386 case 512: 387 x |= 0x00; 388 break; 389 case 1024: 390 x |= 0x04; 391 break; 392 case 2048: 393 x |= 0x08; 394 break; 395 case 4096: 396 x |= 0x0C; 397 break; 398 } 399 400 t_outb(par, x, 0x2125); 401 402 par->eng_oper = x | 0x40; 403 404 writemmr(par, 0x2154, v1); 405 writemmr(par, 0x2150, v1); 406 t_outb(par, 3, 0x2126); 407} 408 409static void xp_wait_engine(struct tridentfb_par *par) 410{ 411 int count = 0; 412 int timeout = 0; 413 414 while (t_inb(par, STATUS) & 0x80) { 415 count++; 416 if (count == 10000000) { 417 /* Timeout */ 418 count = 9990000; 419 timeout++; 420 if (timeout == 8) { 421 /* Reset engine */ 422 t_outb(par, 0x00, STATUS); 423 return; 424 } 425 } 426 cpu_relax(); 427 } 428} 429 430static void xp_fill_rect(struct tridentfb_par *par, 431 u32 x, u32 y, u32 w, u32 h, u32 c, u32 rop) 432{ 433 writemmr(par, 0x2127, ROP_P); 434 writemmr(par, 0x2158, c); 435 writemmr(par, DRAWFL, 0x4000); 436 writemmr(par, OLDDIM, point(h, w)); 437 writemmr(par, OLDDST, point(y, x)); 438 t_outb(par, 0x01, OLDCMD); 439 t_outb(par, par->eng_oper, 0x2125); 440} 441 442static void xp_copy_rect(struct tridentfb_par *par, 443 u32 x1, u32 y1, u32 x2, u32 y2, u32 w, u32 h) 444{ 445 u32 x1_tmp, x2_tmp, y1_tmp, y2_tmp; 446 int direction = 0x0004; 447 448 if ((x1 < x2) && (y1 == y2)) { 449 direction |= 0x0200; 450 x1_tmp = x1 + w - 1; 451 x2_tmp = x2 + w - 1; 452 } else { 453 x1_tmp = x1; 454 x2_tmp = x2; 455 } 456 457 if (y1 < y2) { 458 direction |= 0x0100; 459 y1_tmp = y1 + h - 1; 460 y2_tmp = y2 + h - 1; 461 } else { 462 y1_tmp = y1; 463 y2_tmp = y2; 464 } 465 466 writemmr(par, DRAWFL, direction); 467 t_outb(par, ROP_S, 0x2127); 468 writemmr(par, OLDSRC, point(y1_tmp, x1_tmp)); 469 writemmr(par, OLDDST, point(y2_tmp, x2_tmp)); 470 writemmr(par, OLDDIM, point(h, w)); 471 t_outb(par, 0x01, OLDCMD); 472} 473 474/* 475 * Image specific acceleration functions 476 */ 477static void image_init_accel(struct tridentfb_par *par, int pitch, int bpp) 478{ 479 int tmp = bpp == 24 ? 2: (bpp >> 4); 480 481 writemmr(par, 0x2120, 0xF0000000); 482 writemmr(par, 0x2120, 0x40000000 | tmp); 483 writemmr(par, 0x2120, 0x80000000); 484 writemmr(par, 0x2144, 0x00000000); 485 writemmr(par, 0x2148, 0x00000000); 486 writemmr(par, 0x2150, 0x00000000); 487 writemmr(par, 0x2154, 0x00000000); 488 writemmr(par, 0x2120, 0x60000000 | (pitch << 16) | pitch); 489 writemmr(par, 0x216C, 0x00000000); 490 writemmr(par, 0x2170, 0x00000000); 491 writemmr(par, 0x217C, 0x00000000); 492 writemmr(par, 0x2120, 0x10000000); 493 writemmr(par, 0x2130, (2047 << 16) | 2047); 494} 495 496static void image_wait_engine(struct tridentfb_par *par) 497{ 498 while (readmmr(par, 0x2164) & 0xF0000000) 499 cpu_relax(); 500} 501 502static void image_fill_rect(struct tridentfb_par *par, 503 u32 x, u32 y, u32 w, u32 h, u32 c, u32 rop) 504{ 505 writemmr(par, 0x2120, 0x80000000); 506 writemmr(par, 0x2120, 0x90000000 | ROP_S); 507 508 writemmr(par, 0x2144, c); 509 510 writemmr(par, DST1, point(x, y)); 511 writemmr(par, DST2, point(x + w - 1, y + h - 1)); 512 513 writemmr(par, 0x2124, 0x80000000 | 3 << 22 | 1 << 10 | 1 << 9); 514} 515 516static void image_copy_rect(struct tridentfb_par *par, 517 u32 x1, u32 y1, u32 x2, u32 y2, u32 w, u32 h) 518{ 519 int direction = 0x4; 520 u32 s1 = point(x1, y1); 521 u32 s2 = point(x1 + w - 1, y1 + h - 1); 522 u32 d1 = point(x2, y2); 523 u32 d2 = point(x2 + w - 1, y2 + h - 1); 524 525 if ((y1 > y2) || ((y1 == y2) && (x1 > x2))) 526 direction = 0; 527 528 writemmr(par, 0x2120, 0x80000000); 529 writemmr(par, 0x2120, 0x90000000 | ROP_S); 530 531 writemmr(par, SRC1, direction ? s2 : s1); 532 writemmr(par, SRC2, direction ? s1 : s2); 533 writemmr(par, DST1, direction ? d2 : d1); 534 writemmr(par, DST2, direction ? d1 : d2); 535 writemmr(par, 0x2124, 536 0x80000000 | 1 << 22 | 1 << 10 | 1 << 7 | direction); 537} 538 539/* 540 * TGUI 9440/96XX acceleration 541 */ 542 543static void tgui_init_accel(struct tridentfb_par *par, int pitch, int bpp) 544{ 545 unsigned char x = bpp == 24 ? 3 : (bpp >> 4); 546 547 /* disable clipping */ 548 writemmr(par, 0x2148, 0); 549 writemmr(par, 0x214C, point(4095, 2047)); 550 551 switch ((pitch * bpp) / 8) { 552 case 8192: 553 case 512: 554 x |= 0x00; 555 break; 556 case 1024: 557 x |= 0x04; 558 break; 559 case 2048: 560 x |= 0x08; 561 break; 562 case 4096: 563 x |= 0x0C; 564 break; 565 } 566 567 fb_writew(x, par->io_virt + 0x2122); 568} 569 570static void tgui_fill_rect(struct tridentfb_par *par, 571 u32 x, u32 y, u32 w, u32 h, u32 c, u32 rop) 572{ 573 t_outb(par, ROP_P, 0x2127); 574 writemmr(par, OLDCLR, c); 575 writemmr(par, DRAWFL, 0x4020); 576 writemmr(par, OLDDIM, point(w - 1, h - 1)); 577 writemmr(par, OLDDST, point(x, y)); 578 t_outb(par, 1, OLDCMD); 579} 580 581static void tgui_copy_rect(struct tridentfb_par *par, 582 u32 x1, u32 y1, u32 x2, u32 y2, u32 w, u32 h) 583{ 584 int flags = 0; 585 u16 x1_tmp, x2_tmp, y1_tmp, y2_tmp; 586 587 if ((x1 < x2) && (y1 == y2)) { 588 flags |= 0x0200; 589 x1_tmp = x1 + w - 1; 590 x2_tmp = x2 + w - 1; 591 } else { 592 x1_tmp = x1; 593 x2_tmp = x2; 594 } 595 596 if (y1 < y2) { 597 flags |= 0x0100; 598 y1_tmp = y1 + h - 1; 599 y2_tmp = y2 + h - 1; 600 } else { 601 y1_tmp = y1; 602 y2_tmp = y2; 603 } 604 605 writemmr(par, DRAWFL, 0x4 | flags); 606 t_outb(par, ROP_S, 0x2127); 607 writemmr(par, OLDSRC, point(x1_tmp, y1_tmp)); 608 writemmr(par, OLDDST, point(x2_tmp, y2_tmp)); 609 writemmr(par, OLDDIM, point(w - 1, h - 1)); 610 t_outb(par, 1, OLDCMD); 611} 612 613/* 614 * Accel functions called by the upper layers 615 */ 616static void tridentfb_fillrect(struct fb_info *info, 617 const struct fb_fillrect *fr) 618{ 619 struct tridentfb_par *par = info->par; 620 int col; 621 622 if (info->flags & FBINFO_HWACCEL_DISABLED) { 623 cfb_fillrect(info, fr); 624 return; 625 } 626 if (info->var.bits_per_pixel == 8) { 627 col = fr->color; 628 col |= col << 8; 629 col |= col << 16; 630 } else 631 col = ((u32 *)(info->pseudo_palette))[fr->color]; 632 633 par->wait_engine(par); 634 par->fill_rect(par, fr->dx, fr->dy, fr->width, 635 fr->height, col, fr->rop); 636} 637 638static void tridentfb_imageblit(struct fb_info *info, 639 const struct fb_image *img) 640{ 641 struct tridentfb_par *par = info->par; 642 int col, bgcol; 643 644 if ((info->flags & FBINFO_HWACCEL_DISABLED) || img->depth != 1) { 645 cfb_imageblit(info, img); 646 return; 647 } 648 if (info->var.bits_per_pixel == 8) { 649 col = img->fg_color; 650 col |= col << 8; 651 col |= col << 16; 652 bgcol = img->bg_color; 653 bgcol |= bgcol << 8; 654 bgcol |= bgcol << 16; 655 } else { 656 col = ((u32 *)(info->pseudo_palette))[img->fg_color]; 657 bgcol = ((u32 *)(info->pseudo_palette))[img->bg_color]; 658 } 659 660 par->wait_engine(par); 661 if (par->image_blit) 662 par->image_blit(par, img->data, img->dx, img->dy, 663 img->width, img->height, col, bgcol); 664 else 665 cfb_imageblit(info, img); 666} 667 668static void tridentfb_copyarea(struct fb_info *info, 669 const struct fb_copyarea *ca) 670{ 671 struct tridentfb_par *par = info->par; 672 673 if (info->flags & FBINFO_HWACCEL_DISABLED) { 674 cfb_copyarea(info, ca); 675 return; 676 } 677 par->wait_engine(par); 678 par->copy_rect(par, ca->sx, ca->sy, ca->dx, ca->dy, 679 ca->width, ca->height); 680} 681 682static int tridentfb_sync(struct fb_info *info) 683{ 684 struct tridentfb_par *par = info->par; 685 686 if (!(info->flags & FBINFO_HWACCEL_DISABLED)) 687 par->wait_engine(par); 688 return 0; 689} 690 691/* 692 * Hardware access functions 693 */ 694 695static inline unsigned char read3X4(struct tridentfb_par *par, int reg) 696{ 697 return vga_mm_rcrt(par->io_virt, reg); 698} 699 700static inline void write3X4(struct tridentfb_par *par, int reg, 701 unsigned char val) 702{ 703 vga_mm_wcrt(par->io_virt, reg, val); 704} 705 706static inline unsigned char read3CE(struct tridentfb_par *par, 707 unsigned char reg) 708{ 709 return vga_mm_rgfx(par->io_virt, reg); 710} 711 712static inline void writeAttr(struct tridentfb_par *par, int reg, 713 unsigned char val) 714{ 715 fb_readb(par->io_virt + VGA_IS1_RC); /* flip-flop to index */ 716 vga_mm_wattr(par->io_virt, reg, val); 717} 718 719static inline void write3CE(struct tridentfb_par *par, int reg, 720 unsigned char val) 721{ 722 vga_mm_wgfx(par->io_virt, reg, val); 723} 724 725static void enable_mmio(struct tridentfb_par *par) 726{ 727 /* Goto New Mode */ 728 vga_io_rseq(0x0B); 729 730 /* Unprotect registers */ 731 vga_io_wseq(NewMode1, 0x80); 732 if (!is_oldprotect(par->chip_id)) 733 vga_io_wseq(Protection, 0x92); 734 735 /* Enable MMIO */ 736 outb(PCIReg, 0x3D4); 737 outb(inb(0x3D5) | 0x01, 0x3D5); 738} 739 740static void disable_mmio(struct tridentfb_par *par) 741{ 742 /* Goto New Mode */ 743 vga_mm_rseq(par->io_virt, 0x0B); 744 745 /* Unprotect registers */ 746 vga_mm_wseq(par->io_virt, NewMode1, 0x80); 747 if (!is_oldprotect(par->chip_id)) 748 vga_mm_wseq(par->io_virt, Protection, 0x92); 749 750 /* Disable MMIO */ 751 t_outb(par, PCIReg, 0x3D4); 752 t_outb(par, t_inb(par, 0x3D5) & ~0x01, 0x3D5); 753} 754 755static inline void crtc_unlock(struct tridentfb_par *par) 756{ 757 write3X4(par, VGA_CRTC_V_SYNC_END, 758 read3X4(par, VGA_CRTC_V_SYNC_END) & 0x7F); 759} 760 761/* Return flat panel's maximum x resolution */ 762static int get_nativex(struct tridentfb_par *par) 763{ 764 int x, y, tmp; 765 766 if (nativex) 767 return nativex; 768 769 tmp = (read3CE(par, VertStretch) >> 4) & 3; 770 771 switch (tmp) { 772 case 0: 773 x = 1280; y = 1024; 774 break; 775 case 2: 776 x = 1024; y = 768; 777 break; 778 case 3: 779 x = 800; y = 600; 780 break; 781 case 1: 782 default: 783 x = 640; y = 480; 784 break; 785 } 786 787 output("%dx%d flat panel found\n", x, y); 788 return x; 789} 790 791/* Set pitch */ 792static inline void set_lwidth(struct tridentfb_par *par, int width) 793{ 794 write3X4(par, VGA_CRTC_OFFSET, width & 0xFF); 795 /* chips older than TGUI9660 have only 1 width bit in AddColReg */ 796 /* touching the other one breaks I2C/DDC */ 797 if (par->chip_id == TGUI9440 || par->chip_id == CYBER9320) 798 write3X4(par, AddColReg, 799 (read3X4(par, AddColReg) & 0xEF) | ((width & 0x100) >> 4)); 800 else 801 write3X4(par, AddColReg, 802 (read3X4(par, AddColReg) & 0xCF) | ((width & 0x300) >> 4)); 803} 804 805/* For resolutions smaller than FP resolution stretch */ 806static void screen_stretch(struct tridentfb_par *par) 807{ 808 if (par->chip_id != CYBERBLADEXPAi1) 809 write3CE(par, BiosReg, 0); 810 else 811 write3CE(par, BiosReg, 8); 812 write3CE(par, VertStretch, (read3CE(par, VertStretch) & 0x7C) | 1); 813 write3CE(par, HorStretch, (read3CE(par, HorStretch) & 0x7C) | 1); 814} 815 816/* For resolutions smaller than FP resolution center */ 817static inline void screen_center(struct tridentfb_par *par) 818{ 819 write3CE(par, VertStretch, (read3CE(par, VertStretch) & 0x7C) | 0x80); 820 write3CE(par, HorStretch, (read3CE(par, HorStretch) & 0x7C) | 0x80); 821} 822 823/* Address of first shown pixel in display memory */ 824static void set_screen_start(struct tridentfb_par *par, int base) 825{ 826 u8 tmp; 827 write3X4(par, VGA_CRTC_START_LO, base & 0xFF); 828 write3X4(par, VGA_CRTC_START_HI, (base & 0xFF00) >> 8); 829 tmp = read3X4(par, CRTCModuleTest) & 0xDF; 830 write3X4(par, CRTCModuleTest, tmp | ((base & 0x10000) >> 11)); 831 tmp = read3X4(par, CRTHiOrd) & 0xF8; 832 write3X4(par, CRTHiOrd, tmp | ((base & 0xE0000) >> 17)); 833} 834 835/* Set dotclock frequency */ 836static void set_vclk(struct tridentfb_par *par, unsigned long freq) 837{ 838 int m, n, k; 839 unsigned long fi, d, di; 840 unsigned char best_m = 0, best_n = 0, best_k = 0; 841 unsigned char hi, lo; 842 unsigned char shift = !is_oldclock(par->chip_id) ? 2 : 1; 843 844 d = 20000; 845 for (k = shift; k >= 0; k--) 846 for (m = 1; m < 32; m++) { 847 n = ((m + 2) << shift) - 8; 848 for (n = (n < 0 ? 0 : n); n < 122; n++) { 849 fi = ((14318l * (n + 8)) / (m + 2)) >> k; 850 di = abs(fi - freq); 851 if (di < d || (di == d && k == best_k)) { 852 d = di; 853 best_n = n; 854 best_m = m; 855 best_k = k; 856 } 857 if (fi > freq) 858 break; 859 } 860 } 861 862 if (is_oldclock(par->chip_id)) { 863 lo = best_n | (best_m << 7); 864 hi = (best_m >> 1) | (best_k << 4); 865 } else { 866 lo = best_n; 867 hi = best_m | (best_k << 6); 868 } 869 870 if (is3Dchip(par->chip_id)) { 871 vga_mm_wseq(par->io_virt, ClockHigh, hi); 872 vga_mm_wseq(par->io_virt, ClockLow, lo); 873 } else { 874 t_outb(par, lo, 0x43C8); 875 t_outb(par, hi, 0x43C9); 876 } 877 debug("VCLK = %X %X\n", hi, lo); 878} 879 880/* Set number of lines for flat panels*/ 881static void set_number_of_lines(struct tridentfb_par *par, int lines) 882{ 883 int tmp = read3CE(par, CyberEnhance) & 0x8F; 884 if (lines > 1024) 885 tmp |= 0x50; 886 else if (lines > 768) 887 tmp |= 0x30; 888 else if (lines > 600) 889 tmp |= 0x20; 890 else if (lines > 480) 891 tmp |= 0x10; 892 write3CE(par, CyberEnhance, tmp); 893} 894 895/* 896 * If we see that FP is active we assume we have one. 897 * Otherwise we have a CRT display. User can override. 898 */ 899static int is_flatpanel(struct tridentfb_par *par) 900{ 901 if (fp) 902 return 1; 903 if (crt || !iscyber(par->chip_id)) 904 return 0; 905 return (read3CE(par, FPConfig) & 0x10) ? 1 : 0; 906} 907 908/* Try detecting the video memory size */ 909static unsigned int get_memsize(struct tridentfb_par *par) 910{ 911 unsigned char tmp, tmp2; 912 unsigned int k; 913 914 /* If memory size provided by user */ 915 if (memsize) 916 k = memsize * Kb; 917 else 918 switch (par->chip_id) { 919 case CYBER9525DVD: 920 k = 2560 * Kb; 921 break; 922 default: 923 tmp = read3X4(par, SPR) & 0x0F; 924 switch (tmp) { 925 926 case 0x01: 927 k = 512 * Kb; 928 break; 929 case 0x02: 930 k = 6 * Mb; /* XP */ 931 break; 932 case 0x03: 933 k = 1 * Mb; 934 break; 935 case 0x04: 936 k = 8 * Mb; 937 break; 938 case 0x06: 939 k = 10 * Mb; /* XP */ 940 break; 941 case 0x07: 942 k = 2 * Mb; 943 break; 944 case 0x08: 945 k = 12 * Mb; /* XP */ 946 break; 947 case 0x0A: 948 k = 14 * Mb; /* XP */ 949 break; 950 case 0x0C: 951 k = 16 * Mb; /* XP */ 952 break; 953 case 0x0E: /* XP */ 954 955 tmp2 = vga_mm_rseq(par->io_virt, 0xC1); 956 switch (tmp2) { 957 case 0x00: 958 k = 20 * Mb; 959 break; 960 case 0x01: 961 k = 24 * Mb; 962 break; 963 case 0x10: 964 k = 28 * Mb; 965 break; 966 case 0x11: 967 k = 32 * Mb; 968 break; 969 default: 970 k = 1 * Mb; 971 break; 972 } 973 break; 974 975 case 0x0F: 976 k = 4 * Mb; 977 break; 978 default: 979 k = 1 * Mb; 980 break; 981 } 982 } 983 984 k -= memdiff * Kb; 985 output("framebuffer size = %d Kb\n", k / Kb); 986 return k; 987} 988 989/* See if we can handle the video mode described in var */ 990static int tridentfb_check_var(struct fb_var_screeninfo *var, 991 struct fb_info *info) 992{ 993 struct tridentfb_par *par = info->par; 994 int bpp = var->bits_per_pixel; 995 int line_length; 996 int ramdac = 230000; /* 230MHz for most 3D chips */ 997 debug("enter\n"); 998 999 if (!var->pixclock) 1000 return -EINVAL; 1001 1002 /* check color depth */ 1003 if (bpp == 24) 1004 bpp = var->bits_per_pixel = 32; 1005 if (bpp != 8 && bpp != 16 && bpp != 32) 1006 return -EINVAL; 1007 if (par->chip_id == TGUI9440 && bpp == 32) 1008 return -EINVAL; 1009 /* check whether resolution fits on panel and in memory */ 1010 if (par->flatpanel && nativex && var->xres > nativex) 1011 return -EINVAL; 1012 /* various resolution checks */ 1013 var->xres = (var->xres + 7) & ~0x7; 1014 if (var->xres > var->xres_virtual) 1015 var->xres_virtual = var->xres; 1016 if (var->yres > var->yres_virtual) 1017 var->yres_virtual = var->yres; 1018 if (var->xres_virtual > 4095 || var->yres > 2048) 1019 return -EINVAL; 1020 /* prevent from position overflow for acceleration */ 1021 if (var->yres_virtual > 0xffff) 1022 return -EINVAL; 1023 line_length = var->xres_virtual * bpp / 8; 1024 1025 if (!is3Dchip(par->chip_id) && 1026 !(info->flags & FBINFO_HWACCEL_DISABLED)) { 1027 /* acceleration requires line length to be power of 2 */ 1028 if (line_length <= 512) 1029 var->xres_virtual = 512 * 8 / bpp; 1030 else if (line_length <= 1024) 1031 var->xres_virtual = 1024 * 8 / bpp; 1032 else if (line_length <= 2048) 1033 var->xres_virtual = 2048 * 8 / bpp; 1034 else if (line_length <= 4096) 1035 var->xres_virtual = 4096 * 8 / bpp; 1036 else if (line_length <= 8192) 1037 var->xres_virtual = 8192 * 8 / bpp; 1038 else 1039 return -EINVAL; 1040 1041 line_length = var->xres_virtual * bpp / 8; 1042 } 1043 1044 /* datasheet specifies how to set panning only up to 4 MB */ 1045 if (line_length * (var->yres_virtual - var->yres) > (4 << 20)) 1046 var->yres_virtual = ((4 << 20) / line_length) + var->yres; 1047 1048 if (line_length * var->yres_virtual > info->fix.smem_len) 1049 return -EINVAL; 1050 1051 switch (bpp) { 1052 case 8: 1053 var->red.offset = 0; 1054 var->red.length = 8; 1055 var->green = var->red; 1056 var->blue = var->red; 1057 break; 1058 case 16: 1059 var->red.offset = 11; 1060 var->green.offset = 5; 1061 var->blue.offset = 0; 1062 var->red.length = 5; 1063 var->green.length = 6; 1064 var->blue.length = 5; 1065 break; 1066 case 32: 1067 var->red.offset = 16; 1068 var->green.offset = 8; 1069 var->blue.offset = 0; 1070 var->red.length = 8; 1071 var->green.length = 8; 1072 var->blue.length = 8; 1073 break; 1074 default: 1075 return -EINVAL; 1076 } 1077 1078 if (is_xp(par->chip_id)) 1079 ramdac = 350000; 1080 1081 switch (par->chip_id) { 1082 case TGUI9440: 1083 ramdac = (bpp >= 16) ? 45000 : 90000; 1084 break; 1085 case CYBER9320: 1086 case TGUI9660: 1087 ramdac = 135000; 1088 break; 1089 case PROVIDIA9685: 1090 case CYBER9388: 1091 case CYBER9382: 1092 case CYBER9385: 1093 ramdac = 170000; 1094 break; 1095 } 1096 1097 /* The clock is doubled for 32 bpp */ 1098 if (bpp == 32) 1099 ramdac /= 2; 1100 1101 if (PICOS2KHZ(var->pixclock) > ramdac) 1102 return -EINVAL; 1103 1104 debug("exit\n"); 1105 1106 return 0; 1107 1108} 1109 1110/* Pan the display */ 1111static int tridentfb_pan_display(struct fb_var_screeninfo *var, 1112 struct fb_info *info) 1113{ 1114 struct tridentfb_par *par = info->par; 1115 unsigned int offset; 1116 1117 debug("enter\n"); 1118 offset = (var->xoffset + (var->yoffset * info->var.xres_virtual)) 1119 * info->var.bits_per_pixel / 32; 1120 set_screen_start(par, offset); 1121 debug("exit\n"); 1122 return 0; 1123} 1124 1125static inline void shadowmode_on(struct tridentfb_par *par) 1126{ 1127 write3CE(par, CyberControl, read3CE(par, CyberControl) | 0x81); 1128} 1129 1130/* Set the hardware to the requested video mode */ 1131static int tridentfb_set_par(struct fb_info *info) 1132{ 1133 struct tridentfb_par *par = info->par; 1134 u32 htotal, hdispend, hsyncstart, hsyncend, hblankstart, hblankend; 1135 u32 vtotal, vdispend, vsyncstart, vsyncend, vblankstart, vblankend; 1136 struct fb_var_screeninfo *var = &info->var; 1137 int bpp = var->bits_per_pixel; 1138 unsigned char tmp; 1139 unsigned long vclk; 1140 1141 debug("enter\n"); 1142 hdispend = var->xres / 8 - 1; 1143 hsyncstart = (var->xres + var->right_margin) / 8; 1144 hsyncend = (var->xres + var->right_margin + var->hsync_len) / 8; 1145 htotal = (var->xres + var->left_margin + var->right_margin + 1146 var->hsync_len) / 8 - 5; 1147 hblankstart = hdispend + 1; 1148 hblankend = htotal + 3; 1149 1150 vdispend = var->yres - 1; 1151 vsyncstart = var->yres + var->lower_margin; 1152 vsyncend = vsyncstart + var->vsync_len; 1153 vtotal = var->upper_margin + vsyncend - 2; 1154 vblankstart = vdispend + 1; 1155 vblankend = vtotal; 1156 1157 if (info->var.vmode & FB_VMODE_INTERLACED) { 1158 vtotal /= 2; 1159 vdispend /= 2; 1160 vsyncstart /= 2; 1161 vsyncend /= 2; 1162 vblankstart /= 2; 1163 vblankend /= 2; 1164 } 1165 1166 enable_mmio(par); 1167 crtc_unlock(par); 1168 write3CE(par, CyberControl, 8); 1169 tmp = 0xEB; 1170 if (var->sync & FB_SYNC_HOR_HIGH_ACT) 1171 tmp &= ~0x40; 1172 if (var->sync & FB_SYNC_VERT_HIGH_ACT) 1173 tmp &= ~0x80; 1174 1175 if (par->flatpanel && var->xres < nativex) { 1176 /* 1177 * on flat panels with native size larger 1178 * than requested resolution decide whether 1179 * we stretch or center 1180 */ 1181 t_outb(par, tmp | 0xC0, VGA_MIS_W); 1182 1183 shadowmode_on(par); 1184 1185 if (center) 1186 screen_center(par); 1187 else if (stretch) 1188 screen_stretch(par); 1189 1190 } else { 1191 t_outb(par, tmp, VGA_MIS_W); 1192 write3CE(par, CyberControl, 8); 1193 } 1194 1195 /* vertical timing values */ 1196 write3X4(par, VGA_CRTC_V_TOTAL, vtotal & 0xFF); 1197 write3X4(par, VGA_CRTC_V_DISP_END, vdispend & 0xFF); 1198 write3X4(par, VGA_CRTC_V_SYNC_START, vsyncstart & 0xFF); 1199 write3X4(par, VGA_CRTC_V_SYNC_END, (vsyncend & 0x0F)); 1200 write3X4(par, VGA_CRTC_V_BLANK_START, vblankstart & 0xFF); 1201 write3X4(par, VGA_CRTC_V_BLANK_END, vblankend & 0xFF); 1202 1203 /* horizontal timing values */ 1204 write3X4(par, VGA_CRTC_H_TOTAL, htotal & 0xFF); 1205 write3X4(par, VGA_CRTC_H_DISP, hdispend & 0xFF); 1206 write3X4(par, VGA_CRTC_H_SYNC_START, hsyncstart & 0xFF); 1207 write3X4(par, VGA_CRTC_H_SYNC_END, 1208 (hsyncend & 0x1F) | ((hblankend & 0x20) << 2)); 1209 write3X4(par, VGA_CRTC_H_BLANK_START, hblankstart & 0xFF); 1210 write3X4(par, VGA_CRTC_H_BLANK_END, hblankend & 0x1F); 1211 1212 /* higher bits of vertical timing values */ 1213 tmp = 0x10; 1214 if (vtotal & 0x100) tmp |= 0x01; 1215 if (vdispend & 0x100) tmp |= 0x02; 1216 if (vsyncstart & 0x100) tmp |= 0x04; 1217 if (vblankstart & 0x100) tmp |= 0x08; 1218 1219 if (vtotal & 0x200) tmp |= 0x20; 1220 if (vdispend & 0x200) tmp |= 0x40; 1221 if (vsyncstart & 0x200) tmp |= 0x80; 1222 write3X4(par, VGA_CRTC_OVERFLOW, tmp); 1223 1224 tmp = read3X4(par, CRTHiOrd) & 0x07; 1225 tmp |= 0x08; /* line compare bit 10 */ 1226 if (vtotal & 0x400) tmp |= 0x80; 1227 if (vblankstart & 0x400) tmp |= 0x40; 1228 if (vsyncstart & 0x400) tmp |= 0x20; 1229 if (vdispend & 0x400) tmp |= 0x10; 1230 write3X4(par, CRTHiOrd, tmp); 1231 1232 tmp = (htotal >> 8) & 0x01; 1233 tmp |= (hdispend >> 7) & 0x02; 1234 tmp |= (hsyncstart >> 5) & 0x08; 1235 tmp |= (hblankstart >> 4) & 0x10; 1236 write3X4(par, HorizOverflow, tmp); 1237 1238 tmp = 0x40; 1239 if (vblankstart & 0x200) tmp |= 0x20; 1240//FIXME if (info->var.vmode & FB_VMODE_DOUBLE) tmp |= 0x80; /* double scan for 200 line modes */ 1241 write3X4(par, VGA_CRTC_MAX_SCAN, tmp); 1242 1243 write3X4(par, VGA_CRTC_LINE_COMPARE, 0xFF); 1244 write3X4(par, VGA_CRTC_PRESET_ROW, 0); 1245 write3X4(par, VGA_CRTC_MODE, 0xC3); 1246 1247 write3X4(par, LinearAddReg, 0x20); /* enable linear addressing */ 1248 1249 tmp = (info->var.vmode & FB_VMODE_INTERLACED) ? 0x84 : 0x80; 1250 /* enable access extended memory */ 1251 write3X4(par, CRTCModuleTest, tmp); 1252 tmp = read3CE(par, MiscIntContReg) & ~0x4; 1253 if (info->var.vmode & FB_VMODE_INTERLACED) 1254 tmp |= 0x4; 1255 write3CE(par, MiscIntContReg, tmp); 1256 1257 /* enable GE for text acceleration */ 1258 write3X4(par, GraphEngReg, 0x80); 1259 1260 switch (bpp) { 1261 case 8: 1262 tmp = 0x00; 1263 break; 1264 case 16: 1265 tmp = 0x05; 1266 break; 1267 case 24: 1268 tmp = 0x29; 1269 break; 1270 case 32: 1271 tmp = 0x09; 1272 break; 1273 } 1274 1275 write3X4(par, PixelBusReg, tmp); 1276 1277 tmp = read3X4(par, DRAMControl); 1278 if (!is_oldprotect(par->chip_id)) 1279 tmp |= 0x10; 1280 if (iscyber(par->chip_id)) 1281 tmp |= 0x20; 1282 write3X4(par, DRAMControl, tmp); /* both IO, linear enable */ 1283 1284 write3X4(par, InterfaceSel, read3X4(par, InterfaceSel) | 0x40); 1285 if (!is_xp(par->chip_id)) 1286 write3X4(par, Performance, read3X4(par, Performance) | 0x10); 1287 /* MMIO & PCI read and write burst enable */ 1288 if (par->chip_id != TGUI9440 && par->chip_id != IMAGE975) 1289 write3X4(par, PCIReg, read3X4(par, PCIReg) | 0x06); 1290 1291 vga_mm_wseq(par->io_virt, 0, 3); 1292 vga_mm_wseq(par->io_virt, 1, 1); /* set char clock 8 dots wide */ 1293 /* enable 4 maps because needed in chain4 mode */ 1294 vga_mm_wseq(par->io_virt, 2, 0x0F); 1295 vga_mm_wseq(par->io_virt, 3, 0); 1296 vga_mm_wseq(par->io_virt, 4, 0x0E); /* memory mode enable bitmaps ?? */ 1297 1298 /* convert from picoseconds to kHz */ 1299 vclk = PICOS2KHZ(info->var.pixclock); 1300 1301 /* divide clock by 2 if 32bpp chain4 mode display and CPU path */ 1302 tmp = read3CE(par, MiscExtFunc) & 0xF0; 1303 if (bpp == 32 || (par->chip_id == TGUI9440 && bpp == 16)) { 1304 tmp |= 8; 1305 vclk *= 2; 1306 } 1307 set_vclk(par, vclk); 1308 write3CE(par, MiscExtFunc, tmp | 0x12); 1309 write3CE(par, 0x5, 0x40); /* no CGA compat, allow 256 col */ 1310 write3CE(par, 0x6, 0x05); /* graphics mode */ 1311 write3CE(par, 0x7, 0x0F); /* planes? */ 1312 1313 /* graphics mode and support 256 color modes */ 1314 writeAttr(par, 0x10, 0x41); 1315 writeAttr(par, 0x12, 0x0F); /* planes */ 1316 writeAttr(par, 0x13, 0); /* horizontal pel panning */ 1317 1318 /* colors */ 1319 for (tmp = 0; tmp < 0x10; tmp++) 1320 writeAttr(par, tmp, tmp); 1321 fb_readb(par->io_virt + VGA_IS1_RC); /* flip-flop to index */ 1322 t_outb(par, 0x20, VGA_ATT_W); /* enable attr */ 1323 1324 switch (bpp) { 1325 case 8: 1326 tmp = 0; 1327 break; 1328 case 16: 1329 tmp = 0x30; 1330 break; 1331 case 24: 1332 case 32: 1333 tmp = 0xD0; 1334 break; 1335 } 1336 1337 t_inb(par, VGA_PEL_IW); 1338 t_inb(par, VGA_PEL_MSK); 1339 t_inb(par, VGA_PEL_MSK); 1340 t_inb(par, VGA_PEL_MSK); 1341 t_inb(par, VGA_PEL_MSK); 1342 t_outb(par, tmp, VGA_PEL_MSK); 1343 t_inb(par, VGA_PEL_IW); 1344 1345 if (par->flatpanel) 1346 set_number_of_lines(par, info->var.yres); 1347 info->fix.line_length = info->var.xres_virtual * bpp / 8; 1348 set_lwidth(par, info->fix.line_length / 8); 1349 1350 if (!(info->flags & FBINFO_HWACCEL_DISABLED)) 1351 par->init_accel(par, info->var.xres_virtual, bpp); 1352 1353 info->fix.visual = (bpp == 8) ? FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_TRUECOLOR; 1354 info->cmap.len = (bpp == 8) ? 256 : 16; 1355 debug("exit\n"); 1356 return 0; 1357} 1358 1359/* Set one color register */ 1360static int tridentfb_setcolreg(unsigned regno, unsigned red, unsigned green, 1361 unsigned blue, unsigned transp, 1362 struct fb_info *info) 1363{ 1364 int bpp = info->var.bits_per_pixel; 1365 struct tridentfb_par *par = info->par; 1366 1367 if (regno >= info->cmap.len) 1368 return 1; 1369 1370 if (bpp == 8) { 1371 t_outb(par, 0xFF, VGA_PEL_MSK); 1372 t_outb(par, regno, VGA_PEL_IW); 1373 1374 t_outb(par, red >> 10, VGA_PEL_D); 1375 t_outb(par, green >> 10, VGA_PEL_D); 1376 t_outb(par, blue >> 10, VGA_PEL_D); 1377 1378 } else if (regno < 16) { 1379 if (bpp == 16) { /* RGB 565 */ 1380 u32 col; 1381 1382 col = (red & 0xF800) | ((green & 0xFC00) >> 5) | 1383 ((blue & 0xF800) >> 11); 1384 col |= col << 16; 1385 ((u32 *)(info->pseudo_palette))[regno] = col; 1386 } else if (bpp == 32) /* ARGB 8888 */ 1387 ((u32 *)info->pseudo_palette)[regno] = 1388 ((transp & 0xFF00) << 16) | 1389 ((red & 0xFF00) << 8) | 1390 ((green & 0xFF00)) | 1391 ((blue & 0xFF00) >> 8); 1392 } 1393 1394 return 0; 1395} 1396 1397/* Try blanking the screen. For flat panels it does nothing */ 1398static int tridentfb_blank(int blank_mode, struct fb_info *info) 1399{ 1400 unsigned char PMCont, DPMSCont; 1401 struct tridentfb_par *par = info->par; 1402 1403 debug("enter\n"); 1404 if (par->flatpanel) 1405 return 0; 1406 t_outb(par, 0x04, 0x83C8); /* Read DPMS Control */ 1407 PMCont = t_inb(par, 0x83C6) & 0xFC; 1408 DPMSCont = read3CE(par, PowerStatus) & 0xFC; 1409 switch (blank_mode) { 1410 case FB_BLANK_UNBLANK: 1411 /* Screen: On, HSync: On, VSync: On */ 1412 case FB_BLANK_NORMAL: 1413 /* Screen: Off, HSync: On, VSync: On */ 1414 PMCont |= 0x03; 1415 DPMSCont |= 0x00; 1416 break; 1417 case FB_BLANK_HSYNC_SUSPEND: 1418 /* Screen: Off, HSync: Off, VSync: On */ 1419 PMCont |= 0x02; 1420 DPMSCont |= 0x01; 1421 break; 1422 case FB_BLANK_VSYNC_SUSPEND: 1423 /* Screen: Off, HSync: On, VSync: Off */ 1424 PMCont |= 0x02; 1425 DPMSCont |= 0x02; 1426 break; 1427 case FB_BLANK_POWERDOWN: 1428 /* Screen: Off, HSync: Off, VSync: Off */ 1429 PMCont |= 0x00; 1430 DPMSCont |= 0x03; 1431 break; 1432 } 1433 1434 write3CE(par, PowerStatus, DPMSCont); 1435 t_outb(par, 4, 0x83C8); 1436 t_outb(par, PMCont, 0x83C6); 1437 1438 debug("exit\n"); 1439 1440 /* let fbcon do a softblank for us */ 1441 return (blank_mode == FB_BLANK_NORMAL) ? 1 : 0; 1442} 1443 1444static const struct fb_ops tridentfb_ops = { 1445 .owner = THIS_MODULE, 1446 __FB_DEFAULT_IOMEM_OPS_RDWR, 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 __FB_DEFAULT_IOMEM_OPS_MMAP, 1457}; 1458 1459static int trident_pci_probe(struct pci_dev *dev, 1460 const struct pci_device_id *id) 1461{ 1462 int err; 1463 unsigned char revision; 1464 struct fb_info *info; 1465 struct tridentfb_par *default_par; 1466 int chip3D; 1467 int chip_id; 1468 bool found = false; 1469 1470 err = aperture_remove_conflicting_pci_devices(dev, "tridentfb"); 1471 if (err) 1472 return err; 1473 1474 err = pcim_enable_device(dev); 1475 if (err) 1476 return err; 1477 1478 info = framebuffer_alloc(sizeof(struct tridentfb_par), &dev->dev); 1479 if (!info) 1480 return -ENOMEM; 1481 default_par = info->par; 1482 1483 chip_id = id->device; 1484 1485 /* If PCI id is 0x9660 then further detect chip type */ 1486 1487 if (chip_id == TGUI9660) { 1488 revision = vga_io_rseq(RevisionID); 1489 1490 switch (revision) { 1491 case 0x21: 1492 chip_id = PROVIDIA9685; 1493 break; 1494 case 0x22: 1495 case 0x23: 1496 chip_id = CYBER9397; 1497 break; 1498 case 0x2A: 1499 chip_id = CYBER9397DVD; 1500 break; 1501 case 0x30: 1502 case 0x33: 1503 case 0x34: 1504 case 0x35: 1505 case 0x38: 1506 case 0x3A: 1507 case 0xB3: 1508 chip_id = CYBER9385; 1509 break; 1510 case 0x40 ... 0x43: 1511 chip_id = CYBER9382; 1512 break; 1513 case 0x4A: 1514 chip_id = CYBER9388; 1515 break; 1516 default: 1517 break; 1518 } 1519 } 1520 1521 chip3D = is3Dchip(chip_id); 1522 1523 if (is_xp(chip_id)) { 1524 default_par->init_accel = xp_init_accel; 1525 default_par->wait_engine = xp_wait_engine; 1526 default_par->fill_rect = xp_fill_rect; 1527 default_par->copy_rect = xp_copy_rect; 1528 tridentfb_fix.accel = FB_ACCEL_TRIDENT_BLADEXP; 1529 } else if (is_blade(chip_id)) { 1530 default_par->init_accel = blade_init_accel; 1531 default_par->wait_engine = blade_wait_engine; 1532 default_par->fill_rect = blade_fill_rect; 1533 default_par->copy_rect = blade_copy_rect; 1534 default_par->image_blit = blade_image_blit; 1535 tridentfb_fix.accel = FB_ACCEL_TRIDENT_BLADE3D; 1536 } else if (chip3D) { /* 3DImage family left */ 1537 default_par->init_accel = image_init_accel; 1538 default_par->wait_engine = image_wait_engine; 1539 default_par->fill_rect = image_fill_rect; 1540 default_par->copy_rect = image_copy_rect; 1541 tridentfb_fix.accel = FB_ACCEL_TRIDENT_3DIMAGE; 1542 } else { /* TGUI 9440/96XX family */ 1543 default_par->init_accel = tgui_init_accel; 1544 default_par->wait_engine = xp_wait_engine; 1545 default_par->fill_rect = tgui_fill_rect; 1546 default_par->copy_rect = tgui_copy_rect; 1547 tridentfb_fix.accel = FB_ACCEL_TRIDENT_TGUI; 1548 } 1549 1550 default_par->chip_id = chip_id; 1551 1552 /* setup MMIO region */ 1553 tridentfb_fix.mmio_start = pci_resource_start(dev, 1); 1554 tridentfb_fix.mmio_len = pci_resource_len(dev, 1); 1555 1556 if (!request_mem_region(tridentfb_fix.mmio_start, 1557 tridentfb_fix.mmio_len, "tridentfb")) { 1558 debug("request_region failed!\n"); 1559 framebuffer_release(info); 1560 return -1; 1561 } 1562 1563 default_par->io_virt = ioremap(tridentfb_fix.mmio_start, 1564 tridentfb_fix.mmio_len); 1565 1566 if (!default_par->io_virt) { 1567 debug("ioremap failed\n"); 1568 err = -1; 1569 goto out_unmap1; 1570 } 1571 1572 enable_mmio(default_par); 1573 1574 /* setup framebuffer memory */ 1575 tridentfb_fix.smem_start = pci_resource_start(dev, 0); 1576 tridentfb_fix.smem_len = get_memsize(default_par); 1577 1578 if (!request_mem_region(tridentfb_fix.smem_start, 1579 tridentfb_fix.smem_len, "tridentfb")) { 1580 debug("request_mem_region failed!\n"); 1581 disable_mmio(info->par); 1582 err = -1; 1583 goto out_unmap1; 1584 } 1585 1586 info->screen_base = ioremap(tridentfb_fix.smem_start, 1587 tridentfb_fix.smem_len); 1588 1589 if (!info->screen_base) { 1590 debug("ioremap failed\n"); 1591 err = -1; 1592 goto out_unmap2; 1593 } 1594 1595 default_par->flatpanel = is_flatpanel(default_par); 1596 1597 if (default_par->flatpanel) 1598 nativex = get_nativex(default_par); 1599 1600 info->fix = tridentfb_fix; 1601 info->fbops = &tridentfb_ops; 1602 info->pseudo_palette = default_par->pseudo_pal; 1603 1604 info->flags = FBINFO_HWACCEL_YPAN; 1605 if (!noaccel && default_par->init_accel) { 1606 info->flags &= ~FBINFO_HWACCEL_DISABLED; 1607 info->flags |= FBINFO_HWACCEL_COPYAREA; 1608 info->flags |= FBINFO_HWACCEL_FILLRECT; 1609 } else 1610 info->flags |= FBINFO_HWACCEL_DISABLED; 1611 1612 if (is_blade(chip_id) && chip_id != BLADE3D) 1613 info->flags |= FBINFO_READS_FAST; 1614 1615 info->pixmap.addr = kmalloc(4096, GFP_KERNEL); 1616 if (!info->pixmap.addr) { 1617 err = -ENOMEM; 1618 goto out_unmap2; 1619 } 1620 1621 info->pixmap.size = 4096; 1622 info->pixmap.buf_align = 4; 1623 info->pixmap.scan_align = 1; 1624 info->pixmap.access_align = 32; 1625 info->pixmap.flags = FB_PIXMAP_SYSTEM; 1626 info->var.bits_per_pixel = 8; 1627 1628 if (default_par->image_blit) { 1629 info->flags |= FBINFO_HWACCEL_IMAGEBLIT; 1630 info->pixmap.scan_align = 4; 1631 } 1632 1633 if (noaccel) { 1634 printk(KERN_DEBUG "disabling acceleration\n"); 1635 info->flags |= FBINFO_HWACCEL_DISABLED; 1636 info->pixmap.scan_align = 1; 1637 } 1638 1639 if (tridentfb_setup_ddc_bus(info) == 0) { 1640 u8 *edid = fb_ddc_read(&default_par->ddc_adapter); 1641 1642 default_par->ddc_registered = true; 1643 if (edid) { 1644 fb_edid_to_monspecs(edid, &info->monspecs); 1645 kfree(edid); 1646 if (!info->monspecs.modedb) 1647 dev_err(info->device, "error getting mode database\n"); 1648 else { 1649 const struct fb_videomode *m; 1650 1651 fb_videomode_to_modelist(info->monspecs.modedb, 1652 info->monspecs.modedb_len, 1653 &info->modelist); 1654 m = fb_find_best_display(&info->monspecs, 1655 &info->modelist); 1656 if (m) { 1657 fb_videomode_to_var(&info->var, m); 1658 /* fill all other info->var's fields */ 1659 if (tridentfb_check_var(&info->var, 1660 info) == 0) 1661 found = true; 1662 } 1663 } 1664 } 1665 } 1666 1667 if (!mode_option && !found) 1668 mode_option = "640x480-8@60"; 1669 1670 /* Prepare startup mode */ 1671 if (mode_option) { 1672 err = fb_find_mode(&info->var, info, mode_option, 1673 info->monspecs.modedb, 1674 info->monspecs.modedb_len, 1675 NULL, info->var.bits_per_pixel); 1676 if (!err || err == 4) { 1677 err = -EINVAL; 1678 dev_err(info->device, "mode %s not found\n", 1679 mode_option); 1680 fb_destroy_modedb(info->monspecs.modedb); 1681 info->monspecs.modedb = NULL; 1682 goto out_unmap2; 1683 } 1684 } 1685 1686 fb_destroy_modedb(info->monspecs.modedb); 1687 info->monspecs.modedb = NULL; 1688 1689 err = fb_alloc_cmap(&info->cmap, 256, 0); 1690 if (err < 0) 1691 goto out_unmap2; 1692 1693 info->var.activate |= FB_ACTIVATE_NOW; 1694 info->device = &dev->dev; 1695 if (register_framebuffer(info) < 0) { 1696 printk(KERN_ERR "tridentfb: could not register framebuffer\n"); 1697 fb_dealloc_cmap(&info->cmap); 1698 err = -EINVAL; 1699 goto out_unmap2; 1700 } 1701 output("fb%d: %s frame buffer device %dx%d-%dbpp\n", 1702 info->node, info->fix.id, info->var.xres, 1703 info->var.yres, info->var.bits_per_pixel); 1704 1705 pci_set_drvdata(dev, info); 1706 return 0; 1707 1708out_unmap2: 1709 if (default_par->ddc_registered) 1710 i2c_del_adapter(&default_par->ddc_adapter); 1711 kfree(info->pixmap.addr); 1712 if (info->screen_base) 1713 iounmap(info->screen_base); 1714 disable_mmio(info->par); 1715out_unmap1: 1716 if (default_par->io_virt) 1717 iounmap(default_par->io_virt); 1718 framebuffer_release(info); 1719 return err; 1720} 1721 1722static void trident_pci_remove(struct pci_dev *dev) 1723{ 1724 struct fb_info *info = pci_get_drvdata(dev); 1725 struct tridentfb_par *par = info->par; 1726 1727 unregister_framebuffer(info); 1728 if (par->ddc_registered) 1729 i2c_del_adapter(&par->ddc_adapter); 1730 iounmap(par->io_virt); 1731 iounmap(info->screen_base); 1732 kfree(info->pixmap.addr); 1733 fb_dealloc_cmap(&info->cmap); 1734 framebuffer_release(info); 1735} 1736 1737/* List of boards that we are trying to support */ 1738static const struct pci_device_id trident_devices[] = { 1739 {PCI_VENDOR_ID_TRIDENT, BLADE3D, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, 1740 {PCI_VENDOR_ID_TRIDENT, CYBERBLADEi7, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, 1741 {PCI_VENDOR_ID_TRIDENT, CYBERBLADEi7D, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, 1742 {PCI_VENDOR_ID_TRIDENT, CYBERBLADEi1, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, 1743 {PCI_VENDOR_ID_TRIDENT, CYBERBLADEi1D, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, 1744 {PCI_VENDOR_ID_TRIDENT, CYBERBLADEAi1, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, 1745 {PCI_VENDOR_ID_TRIDENT, CYBERBLADEAi1D, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, 1746 {PCI_VENDOR_ID_TRIDENT, CYBERBLADEE4, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, 1747 {PCI_VENDOR_ID_TRIDENT, TGUI9440, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, 1748 {PCI_VENDOR_ID_TRIDENT, TGUI9660, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, 1749 {PCI_VENDOR_ID_TRIDENT, IMAGE975, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, 1750 {PCI_VENDOR_ID_TRIDENT, IMAGE985, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, 1751 {PCI_VENDOR_ID_TRIDENT, CYBER9320, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, 1752 {PCI_VENDOR_ID_TRIDENT, CYBER9388, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, 1753 {PCI_VENDOR_ID_TRIDENT, CYBER9520, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, 1754 {PCI_VENDOR_ID_TRIDENT, CYBER9525DVD, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, 1755 {PCI_VENDOR_ID_TRIDENT, CYBER9397, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, 1756 {PCI_VENDOR_ID_TRIDENT, CYBER9397DVD, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, 1757 {PCI_VENDOR_ID_TRIDENT, CYBERBLADEXPAi1, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, 1758 {PCI_VENDOR_ID_TRIDENT, CYBERBLADEXPm8, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, 1759 {PCI_VENDOR_ID_TRIDENT, CYBERBLADEXPm16, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, 1760 {0,} 1761}; 1762 1763MODULE_DEVICE_TABLE(pci, trident_devices); 1764 1765static struct pci_driver tridentfb_pci_driver = { 1766 .name = "tridentfb", 1767 .id_table = trident_devices, 1768 .probe = trident_pci_probe, 1769 .remove = trident_pci_remove, 1770}; 1771 1772/* 1773 * Parse user specified options (`video=trident:') 1774 * example: 1775 * video=trident:800x600,bpp=16,noaccel 1776 */ 1777#ifndef MODULE 1778static int __init tridentfb_setup(char *options) 1779{ 1780 char *opt; 1781 if (!options || !*options) 1782 return 0; 1783 while ((opt = strsep(&options, ",")) != NULL) { 1784 if (!*opt) 1785 continue; 1786 if (!strncmp(opt, "noaccel", 7)) 1787 noaccel = 1; 1788 else if (!strncmp(opt, "fp", 2)) 1789 fp = 1; 1790 else if (!strncmp(opt, "crt", 3)) 1791 fp = 0; 1792 else if (!strncmp(opt, "bpp=", 4)) 1793 bpp = simple_strtoul(opt + 4, NULL, 0); 1794 else if (!strncmp(opt, "center", 6)) 1795 center = 1; 1796 else if (!strncmp(opt, "stretch", 7)) 1797 stretch = 1; 1798 else if (!strncmp(opt, "memsize=", 8)) 1799 memsize = simple_strtoul(opt + 8, NULL, 0); 1800 else if (!strncmp(opt, "memdiff=", 8)) 1801 memdiff = simple_strtoul(opt + 8, NULL, 0); 1802 else if (!strncmp(opt, "nativex=", 8)) 1803 nativex = simple_strtoul(opt + 8, NULL, 0); 1804 else 1805 mode_option = opt; 1806 } 1807 return 0; 1808} 1809#endif 1810 1811static int __init tridentfb_init(void) 1812{ 1813#ifndef MODULE 1814 char *option = NULL; 1815#endif 1816 1817 if (fb_modesetting_disabled("tridentfb")) 1818 return -ENODEV; 1819 1820#ifndef MODULE 1821 if (fb_get_options("tridentfb", &option)) 1822 return -ENODEV; 1823 tridentfb_setup(option); 1824#endif 1825 return pci_register_driver(&tridentfb_pci_driver); 1826} 1827 1828static void __exit tridentfb_exit(void) 1829{ 1830 pci_unregister_driver(&tridentfb_pci_driver); 1831} 1832 1833module_init(tridentfb_init); 1834module_exit(tridentfb_exit); 1835 1836MODULE_AUTHOR("Jani Monoses <jani@iv.ro>"); 1837MODULE_DESCRIPTION("Framebuffer driver for Trident cards"); 1838MODULE_LICENSE("GPL"); 1839MODULE_ALIAS("cyblafb"); 1840 1841