1 /* 2 * Frame buffer driver for Trident TGUI, Blade and Image series 3 * 4 * Copyright 2001, 2002 - Jani Monoses <jani@iv.ro> 5 * Copyright 2009 Krzysztof Helt <krzysztof.h1@wp.pl> 6 * 7 * CREDITS:(in order of appearance) 8 * skeletonfb.c by Geert Uytterhoeven and other fb code in drivers/video 9 * Special thanks ;) to Mattia Crivellini <tia@mclink.it> 10 * much inspired by the XFree86 4.x Trident driver sources 11 * by Alan Hourihane the FreeVGA project 12 * Francesco Salvestrini <salvestrini@users.sf.net> XP support, 13 * code, suggestions 14 * TODO: 15 * timing value tweaking so it looks good on every monitor in every mode 16 */ 17 18 #include <linux/module.h> 19 #include <linux/fb.h> 20 #include <linux/init.h> 21 #include <linux/pci.h> 22 #include <linux/slab.h> 23 24 #include <linux/delay.h> 25 #include <video/vga.h> 26 #include <video/trident.h> 27 28 #include <linux/i2c.h> 29 #include <linux/i2c-algo-bit.h> 30 31 struct tridentfb_par { 32 void __iomem *io_virt; /* iospace virtual memory address */ 33 u32 pseudo_pal[16]; 34 int chip_id; 35 int flatpanel; 36 void (*init_accel) (struct tridentfb_par *, int, int); 37 void (*wait_engine) (struct tridentfb_par *); 38 void (*fill_rect) 39 (struct tridentfb_par *par, u32, u32, u32, u32, u32, u32); 40 void (*copy_rect) 41 (struct tridentfb_par *par, u32, u32, u32, u32, u32, u32); 42 void (*image_blit) 43 (struct tridentfb_par *par, const char*, 44 u32, u32, u32, u32, u32, u32); 45 unsigned char eng_oper; /* engine operation... */ 46 bool ddc_registered; 47 struct i2c_adapter ddc_adapter; 48 struct i2c_algo_bit_data ddc_algo; 49 }; 50 51 static struct fb_fix_screeninfo tridentfb_fix = { 52 .id = "Trident", 53 .type = FB_TYPE_PACKED_PIXELS, 54 .ypanstep = 1, 55 .visual = FB_VISUAL_PSEUDOCOLOR, 56 .accel = FB_ACCEL_NONE, 57 }; 58 59 /* defaults which are normally overriden by user values */ 60 61 /* video mode */ 62 static char *mode_option; 63 static int bpp = 8; 64 65 static int noaccel; 66 67 static int center; 68 static int stretch; 69 70 static int fp; 71 static int crt; 72 73 static int memsize; 74 static int memdiff; 75 static int nativex; 76 77 module_param(mode_option, charp, 0); 78 MODULE_PARM_DESC(mode_option, "Initial video mode e.g. '648x480-8@60'"); 79 module_param_named(mode, mode_option, charp, 0); 80 MODULE_PARM_DESC(mode, "Initial video mode e.g. '648x480-8@60' (deprecated)"); 81 module_param(bpp, int, 0); 82 module_param(center, int, 0); 83 module_param(stretch, int, 0); 84 module_param(noaccel, int, 0); 85 module_param(memsize, int, 0); 86 module_param(memdiff, int, 0); 87 module_param(nativex, int, 0); 88 module_param(fp, int, 0); 89 MODULE_PARM_DESC(fp, "Define if flatpanel is connected"); 90 module_param(crt, int, 0); 91 MODULE_PARM_DESC(crt, "Define if CRT is connected"); 92 93 static inline int is_oldclock(int id) 94 { 95 return (id == TGUI9440) || 96 (id == TGUI9660) || 97 (id == CYBER9320); 98 } 99 100 static inline int is_oldprotect(int id) 101 { 102 return is_oldclock(id) || 103 (id == PROVIDIA9685) || 104 (id == CYBER9382) || 105 (id == CYBER9385); 106 } 107 108 static inline int is_blade(int id) 109 { 110 return (id == BLADE3D) || 111 (id == CYBERBLADEE4) || 112 (id == CYBERBLADEi7) || 113 (id == CYBERBLADEi7D) || 114 (id == CYBERBLADEi1) || 115 (id == CYBERBLADEi1D) || 116 (id == CYBERBLADEAi1) || 117 (id == CYBERBLADEAi1D); 118 } 119 120 static inline int is_xp(int id) 121 { 122 return (id == CYBERBLADEXPAi1) || 123 (id == CYBERBLADEXPm8) || 124 (id == CYBERBLADEXPm16); 125 } 126 127 static inline int is3Dchip(int id) 128 { 129 return is_blade(id) || is_xp(id) || 130 (id == CYBER9397) || (id == CYBER9397DVD) || 131 (id == CYBER9520) || (id == CYBER9525DVD) || 132 (id == IMAGE975) || (id == IMAGE985); 133 } 134 135 static inline int iscyber(int id) 136 { 137 switch (id) { 138 case CYBER9388: 139 case CYBER9382: 140 case CYBER9385: 141 case CYBER9397: 142 case CYBER9397DVD: 143 case CYBER9520: 144 case CYBER9525DVD: 145 case CYBERBLADEE4: 146 case CYBERBLADEi7D: 147 case CYBERBLADEi1: 148 case CYBERBLADEi1D: 149 case CYBERBLADEAi1: 150 case CYBERBLADEAi1D: 151 case CYBERBLADEXPAi1: 152 return 1; 153 154 case CYBER9320: 155 case CYBERBLADEi7: /* VIA MPV4 integrated version */ 156 default: 157 /* case CYBERBLDAEXPm8: Strange */ 158 /* case CYBERBLDAEXPm16: Strange */ 159 return 0; 160 } 161 } 162 163 static inline void t_outb(struct tridentfb_par *p, u8 val, u16 reg) 164 { 165 fb_writeb(val, p->io_virt + reg); 166 } 167 168 static inline u8 t_inb(struct tridentfb_par *p, u16 reg) 169 { 170 return fb_readb(p->io_virt + reg); 171 } 172 173 static inline void writemmr(struct tridentfb_par *par, u16 r, u32 v) 174 { 175 fb_writel(v, par->io_virt + r); 176 } 177 178 static inline u32 readmmr(struct tridentfb_par *par, u16 r) 179 { 180 return fb_readl(par->io_virt + r); 181 } 182 183 #define DDC_SDA_TGUI BIT(0) 184 #define DDC_SCL_TGUI BIT(1) 185 #define DDC_SCL_DRIVE_TGUI BIT(2) 186 #define DDC_SDA_DRIVE_TGUI BIT(3) 187 #define DDC_MASK_TGUI (DDC_SCL_DRIVE_TGUI | DDC_SDA_DRIVE_TGUI) 188 189 static void tridentfb_ddc_setscl_tgui(void *data, int val) 190 { 191 struct tridentfb_par *par = data; 192 u8 reg = vga_mm_rcrt(par->io_virt, I2C) & DDC_MASK_TGUI; 193 194 if (val) 195 reg &= ~DDC_SCL_DRIVE_TGUI; /* disable drive - don't drive hi */ 196 else 197 reg |= DDC_SCL_DRIVE_TGUI; /* drive low */ 198 199 vga_mm_wcrt(par->io_virt, I2C, reg); 200 } 201 202 static void tridentfb_ddc_setsda_tgui(void *data, int val) 203 { 204 struct tridentfb_par *par = data; 205 u8 reg = vga_mm_rcrt(par->io_virt, I2C) & DDC_MASK_TGUI; 206 207 if (val) 208 reg &= ~DDC_SDA_DRIVE_TGUI; /* disable drive - don't drive hi */ 209 else 210 reg |= DDC_SDA_DRIVE_TGUI; /* drive low */ 211 212 vga_mm_wcrt(par->io_virt, I2C, reg); 213 } 214 215 static int tridentfb_ddc_getsda_tgui(void *data) 216 { 217 struct tridentfb_par *par = data; 218 219 return !!(vga_mm_rcrt(par->io_virt, I2C) & DDC_SDA_TGUI); 220 } 221 222 #define DDC_SDA_IN BIT(0) 223 #define DDC_SCL_OUT BIT(1) 224 #define DDC_SDA_OUT BIT(3) 225 #define DDC_SCL_IN BIT(6) 226 #define DDC_MASK (DDC_SCL_OUT | DDC_SDA_OUT) 227 228 static void tridentfb_ddc_setscl(void *data, int val) 229 { 230 struct tridentfb_par *par = data; 231 unsigned char reg; 232 233 reg = vga_mm_rcrt(par->io_virt, I2C) & DDC_MASK; 234 if (val) 235 reg |= DDC_SCL_OUT; 236 else 237 reg &= ~DDC_SCL_OUT; 238 vga_mm_wcrt(par->io_virt, I2C, reg); 239 } 240 241 static void tridentfb_ddc_setsda(void *data, int val) 242 { 243 struct tridentfb_par *par = data; 244 unsigned char reg; 245 246 reg = vga_mm_rcrt(par->io_virt, I2C) & DDC_MASK; 247 if (!val) 248 reg |= DDC_SDA_OUT; 249 else 250 reg &= ~DDC_SDA_OUT; 251 vga_mm_wcrt(par->io_virt, I2C, reg); 252 } 253 254 static int tridentfb_ddc_getscl(void *data) 255 { 256 struct tridentfb_par *par = data; 257 258 return !!(vga_mm_rcrt(par->io_virt, I2C) & DDC_SCL_IN); 259 } 260 261 static int tridentfb_ddc_getsda(void *data) 262 { 263 struct tridentfb_par *par = data; 264 265 return !!(vga_mm_rcrt(par->io_virt, I2C) & DDC_SDA_IN); 266 } 267 268 static int tridentfb_setup_ddc_bus(struct fb_info *info) 269 { 270 struct tridentfb_par *par = info->par; 271 272 strlcpy(par->ddc_adapter.name, info->fix.id, 273 sizeof(par->ddc_adapter.name)); 274 par->ddc_adapter.owner = THIS_MODULE; 275 par->ddc_adapter.class = I2C_CLASS_DDC; 276 par->ddc_adapter.algo_data = &par->ddc_algo; 277 par->ddc_adapter.dev.parent = info->device; 278 if (is_oldclock(par->chip_id)) { /* not sure if this check is OK */ 279 par->ddc_algo.setsda = tridentfb_ddc_setsda_tgui; 280 par->ddc_algo.setscl = tridentfb_ddc_setscl_tgui; 281 par->ddc_algo.getsda = tridentfb_ddc_getsda_tgui; 282 /* no getscl */ 283 } else { 284 par->ddc_algo.setsda = tridentfb_ddc_setsda; 285 par->ddc_algo.setscl = tridentfb_ddc_setscl; 286 par->ddc_algo.getsda = tridentfb_ddc_getsda; 287 par->ddc_algo.getscl = tridentfb_ddc_getscl; 288 } 289 par->ddc_algo.udelay = 10; 290 par->ddc_algo.timeout = 20; 291 par->ddc_algo.data = par; 292 293 i2c_set_adapdata(&par->ddc_adapter, par); 294 295 return i2c_bit_add_bus(&par->ddc_adapter); 296 } 297 298 /* 299 * Blade specific acceleration. 300 */ 301 302 #define point(x, y) ((y) << 16 | (x)) 303 304 static void blade_init_accel(struct tridentfb_par *par, int pitch, int bpp) 305 { 306 int v1 = (pitch >> 3) << 20; 307 int tmp = bpp == 24 ? 2 : (bpp >> 4); 308 int v2 = v1 | (tmp << 29); 309 310 writemmr(par, 0x21C0, v2); 311 writemmr(par, 0x21C4, v2); 312 writemmr(par, 0x21B8, v2); 313 writemmr(par, 0x21BC, v2); 314 writemmr(par, 0x21D0, v1); 315 writemmr(par, 0x21D4, v1); 316 writemmr(par, 0x21C8, v1); 317 writemmr(par, 0x21CC, v1); 318 writemmr(par, 0x216C, 0); 319 } 320 321 static void blade_wait_engine(struct tridentfb_par *par) 322 { 323 while (readmmr(par, STATUS) & 0xFA800000) 324 cpu_relax(); 325 } 326 327 static void blade_fill_rect(struct tridentfb_par *par, 328 u32 x, u32 y, u32 w, u32 h, u32 c, u32 rop) 329 { 330 writemmr(par, COLOR, c); 331 writemmr(par, ROP, rop ? ROP_X : ROP_S); 332 writemmr(par, CMD, 0x20000000 | 1 << 19 | 1 << 4 | 2 << 2); 333 334 writemmr(par, DST1, point(x, y)); 335 writemmr(par, DST2, point(x + w - 1, y + h - 1)); 336 } 337 338 static void blade_image_blit(struct tridentfb_par *par, const char *data, 339 u32 x, u32 y, u32 w, u32 h, u32 c, u32 b) 340 { 341 unsigned size = ((w + 31) >> 5) * h; 342 343 writemmr(par, COLOR, c); 344 writemmr(par, BGCOLOR, b); 345 writemmr(par, CMD, 0xa0000000 | 3 << 19); 346 347 writemmr(par, DST1, point(x, y)); 348 writemmr(par, DST2, point(x + w - 1, y + h - 1)); 349 350 iowrite32_rep(par->io_virt + 0x10000, data, size); 351 } 352 353 static void blade_copy_rect(struct tridentfb_par *par, 354 u32 x1, u32 y1, u32 x2, u32 y2, u32 w, u32 h) 355 { 356 int direction = 2; 357 u32 s1 = point(x1, y1); 358 u32 s2 = point(x1 + w - 1, y1 + h - 1); 359 u32 d1 = point(x2, y2); 360 u32 d2 = point(x2 + w - 1, y2 + h - 1); 361 362 if ((y1 > y2) || ((y1 == y2) && (x1 > x2))) 363 direction = 0; 364 365 writemmr(par, ROP, ROP_S); 366 writemmr(par, CMD, 0xE0000000 | 1 << 19 | 1 << 4 | 1 << 2 | direction); 367 368 writemmr(par, SRC1, direction ? s2 : s1); 369 writemmr(par, SRC2, direction ? s1 : s2); 370 writemmr(par, DST1, direction ? d2 : d1); 371 writemmr(par, DST2, direction ? d1 : d2); 372 } 373 374 /* 375 * BladeXP specific acceleration functions 376 */ 377 378 static void xp_init_accel(struct tridentfb_par *par, int pitch, int bpp) 379 { 380 unsigned char x = bpp == 24 ? 3 : (bpp >> 4); 381 int v1 = pitch << (bpp == 24 ? 20 : (18 + x)); 382 383 switch (pitch << (bpp >> 3)) { 384 case 8192: 385 case 512: 386 x |= 0x00; 387 break; 388 case 1024: 389 x |= 0x04; 390 break; 391 case 2048: 392 x |= 0x08; 393 break; 394 case 4096: 395 x |= 0x0C; 396 break; 397 } 398 399 t_outb(par, x, 0x2125); 400 401 par->eng_oper = x | 0x40; 402 403 writemmr(par, 0x2154, v1); 404 writemmr(par, 0x2150, v1); 405 t_outb(par, 3, 0x2126); 406 } 407 408 static void xp_wait_engine(struct tridentfb_par *par) 409 { 410 int count = 0; 411 int timeout = 0; 412 413 while (t_inb(par, STATUS) & 0x80) { 414 count++; 415 if (count == 10000000) { 416 /* Timeout */ 417 count = 9990000; 418 timeout++; 419 if (timeout == 8) { 420 /* Reset engine */ 421 t_outb(par, 0x00, STATUS); 422 return; 423 } 424 } 425 cpu_relax(); 426 } 427 } 428 429 static void xp_fill_rect(struct tridentfb_par *par, 430 u32 x, u32 y, u32 w, u32 h, u32 c, u32 rop) 431 { 432 writemmr(par, 0x2127, ROP_P); 433 writemmr(par, 0x2158, c); 434 writemmr(par, DRAWFL, 0x4000); 435 writemmr(par, OLDDIM, point(h, w)); 436 writemmr(par, OLDDST, point(y, x)); 437 t_outb(par, 0x01, OLDCMD); 438 t_outb(par, par->eng_oper, 0x2125); 439 } 440 441 static void xp_copy_rect(struct tridentfb_par *par, 442 u32 x1, u32 y1, u32 x2, u32 y2, u32 w, u32 h) 443 { 444 u32 x1_tmp, x2_tmp, y1_tmp, y2_tmp; 445 int direction = 0x0004; 446 447 if ((x1 < x2) && (y1 == y2)) { 448 direction |= 0x0200; 449 x1_tmp = x1 + w - 1; 450 x2_tmp = x2 + w - 1; 451 } else { 452 x1_tmp = x1; 453 x2_tmp = x2; 454 } 455 456 if (y1 < y2) { 457 direction |= 0x0100; 458 y1_tmp = y1 + h - 1; 459 y2_tmp = y2 + h - 1; 460 } else { 461 y1_tmp = y1; 462 y2_tmp = y2; 463 } 464 465 writemmr(par, DRAWFL, direction); 466 t_outb(par, ROP_S, 0x2127); 467 writemmr(par, OLDSRC, point(y1_tmp, x1_tmp)); 468 writemmr(par, OLDDST, point(y2_tmp, x2_tmp)); 469 writemmr(par, OLDDIM, point(h, w)); 470 t_outb(par, 0x01, OLDCMD); 471 } 472 473 /* 474 * Image specific acceleration functions 475 */ 476 static void image_init_accel(struct tridentfb_par *par, int pitch, int bpp) 477 { 478 int tmp = bpp == 24 ? 2: (bpp >> 4); 479 480 writemmr(par, 0x2120, 0xF0000000); 481 writemmr(par, 0x2120, 0x40000000 | tmp); 482 writemmr(par, 0x2120, 0x80000000); 483 writemmr(par, 0x2144, 0x00000000); 484 writemmr(par, 0x2148, 0x00000000); 485 writemmr(par, 0x2150, 0x00000000); 486 writemmr(par, 0x2154, 0x00000000); 487 writemmr(par, 0x2120, 0x60000000 | (pitch << 16) | pitch); 488 writemmr(par, 0x216C, 0x00000000); 489 writemmr(par, 0x2170, 0x00000000); 490 writemmr(par, 0x217C, 0x00000000); 491 writemmr(par, 0x2120, 0x10000000); 492 writemmr(par, 0x2130, (2047 << 16) | 2047); 493 } 494 495 static void image_wait_engine(struct tridentfb_par *par) 496 { 497 while (readmmr(par, 0x2164) & 0xF0000000) 498 cpu_relax(); 499 } 500 501 static void image_fill_rect(struct tridentfb_par *par, 502 u32 x, u32 y, u32 w, u32 h, u32 c, u32 rop) 503 { 504 writemmr(par, 0x2120, 0x80000000); 505 writemmr(par, 0x2120, 0x90000000 | ROP_S); 506 507 writemmr(par, 0x2144, c); 508 509 writemmr(par, DST1, point(x, y)); 510 writemmr(par, DST2, point(x + w - 1, y + h - 1)); 511 512 writemmr(par, 0x2124, 0x80000000 | 3 << 22 | 1 << 10 | 1 << 9); 513 } 514 515 static void image_copy_rect(struct tridentfb_par *par, 516 u32 x1, u32 y1, u32 x2, u32 y2, u32 w, u32 h) 517 { 518 int direction = 0x4; 519 u32 s1 = point(x1, y1); 520 u32 s2 = point(x1 + w - 1, y1 + h - 1); 521 u32 d1 = point(x2, y2); 522 u32 d2 = point(x2 + w - 1, y2 + h - 1); 523 524 if ((y1 > y2) || ((y1 == y2) && (x1 > x2))) 525 direction = 0; 526 527 writemmr(par, 0x2120, 0x80000000); 528 writemmr(par, 0x2120, 0x90000000 | ROP_S); 529 530 writemmr(par, SRC1, direction ? s2 : s1); 531 writemmr(par, SRC2, direction ? s1 : s2); 532 writemmr(par, DST1, direction ? d2 : d1); 533 writemmr(par, DST2, direction ? d1 : d2); 534 writemmr(par, 0x2124, 535 0x80000000 | 1 << 22 | 1 << 10 | 1 << 7 | direction); 536 } 537 538 /* 539 * TGUI 9440/96XX acceleration 540 */ 541 542 static void tgui_init_accel(struct tridentfb_par *par, int pitch, int bpp) 543 { 544 unsigned char x = bpp == 24 ? 3 : (bpp >> 4); 545 546 /* disable clipping */ 547 writemmr(par, 0x2148, 0); 548 writemmr(par, 0x214C, point(4095, 2047)); 549 550 switch ((pitch * bpp) / 8) { 551 case 8192: 552 case 512: 553 x |= 0x00; 554 break; 555 case 1024: 556 x |= 0x04; 557 break; 558 case 2048: 559 x |= 0x08; 560 break; 561 case 4096: 562 x |= 0x0C; 563 break; 564 } 565 566 fb_writew(x, par->io_virt + 0x2122); 567 } 568 569 static void tgui_fill_rect(struct tridentfb_par *par, 570 u32 x, u32 y, u32 w, u32 h, u32 c, u32 rop) 571 { 572 t_outb(par, ROP_P, 0x2127); 573 writemmr(par, OLDCLR, c); 574 writemmr(par, DRAWFL, 0x4020); 575 writemmr(par, OLDDIM, point(w - 1, h - 1)); 576 writemmr(par, OLDDST, point(x, y)); 577 t_outb(par, 1, OLDCMD); 578 } 579 580 static void tgui_copy_rect(struct tridentfb_par *par, 581 u32 x1, u32 y1, u32 x2, u32 y2, u32 w, u32 h) 582 { 583 int flags = 0; 584 u16 x1_tmp, x2_tmp, y1_tmp, y2_tmp; 585 586 if ((x1 < x2) && (y1 == y2)) { 587 flags |= 0x0200; 588 x1_tmp = x1 + w - 1; 589 x2_tmp = x2 + w - 1; 590 } else { 591 x1_tmp = x1; 592 x2_tmp = x2; 593 } 594 595 if (y1 < y2) { 596 flags |= 0x0100; 597 y1_tmp = y1 + h - 1; 598 y2_tmp = y2 + h - 1; 599 } else { 600 y1_tmp = y1; 601 y2_tmp = y2; 602 } 603 604 writemmr(par, DRAWFL, 0x4 | flags); 605 t_outb(par, ROP_S, 0x2127); 606 writemmr(par, OLDSRC, point(x1_tmp, y1_tmp)); 607 writemmr(par, OLDDST, point(x2_tmp, y2_tmp)); 608 writemmr(par, OLDDIM, point(w - 1, h - 1)); 609 t_outb(par, 1, OLDCMD); 610 } 611 612 /* 613 * Accel functions called by the upper layers 614 */ 615 static void tridentfb_fillrect(struct fb_info *info, 616 const struct fb_fillrect *fr) 617 { 618 struct tridentfb_par *par = info->par; 619 int col; 620 621 if (info->flags & FBINFO_HWACCEL_DISABLED) { 622 cfb_fillrect(info, fr); 623 return; 624 } 625 if (info->var.bits_per_pixel == 8) { 626 col = fr->color; 627 col |= col << 8; 628 col |= col << 16; 629 } else 630 col = ((u32 *)(info->pseudo_palette))[fr->color]; 631 632 par->wait_engine(par); 633 par->fill_rect(par, fr->dx, fr->dy, fr->width, 634 fr->height, col, fr->rop); 635 } 636 637 static void tridentfb_imageblit(struct fb_info *info, 638 const struct fb_image *img) 639 { 640 struct tridentfb_par *par = info->par; 641 int col, bgcol; 642 643 if ((info->flags & FBINFO_HWACCEL_DISABLED) || img->depth != 1) { 644 cfb_imageblit(info, img); 645 return; 646 } 647 if (info->var.bits_per_pixel == 8) { 648 col = img->fg_color; 649 col |= col << 8; 650 col |= col << 16; 651 bgcol = img->bg_color; 652 bgcol |= bgcol << 8; 653 bgcol |= bgcol << 16; 654 } else { 655 col = ((u32 *)(info->pseudo_palette))[img->fg_color]; 656 bgcol = ((u32 *)(info->pseudo_palette))[img->bg_color]; 657 } 658 659 par->wait_engine(par); 660 if (par->image_blit) 661 par->image_blit(par, img->data, img->dx, img->dy, 662 img->width, img->height, col, bgcol); 663 else 664 cfb_imageblit(info, img); 665 } 666 667 static void tridentfb_copyarea(struct fb_info *info, 668 const struct fb_copyarea *ca) 669 { 670 struct tridentfb_par *par = info->par; 671 672 if (info->flags & FBINFO_HWACCEL_DISABLED) { 673 cfb_copyarea(info, ca); 674 return; 675 } 676 par->wait_engine(par); 677 par->copy_rect(par, ca->sx, ca->sy, ca->dx, ca->dy, 678 ca->width, ca->height); 679 } 680 681 static int tridentfb_sync(struct fb_info *info) 682 { 683 struct tridentfb_par *par = info->par; 684 685 if (!(info->flags & FBINFO_HWACCEL_DISABLED)) 686 par->wait_engine(par); 687 return 0; 688 } 689 690 /* 691 * Hardware access functions 692 */ 693 694 static inline unsigned char read3X4(struct tridentfb_par *par, int reg) 695 { 696 return vga_mm_rcrt(par->io_virt, reg); 697 } 698 699 static inline void write3X4(struct tridentfb_par *par, int reg, 700 unsigned char val) 701 { 702 vga_mm_wcrt(par->io_virt, reg, val); 703 } 704 705 static inline unsigned char read3CE(struct tridentfb_par *par, 706 unsigned char reg) 707 { 708 return vga_mm_rgfx(par->io_virt, reg); 709 } 710 711 static inline void writeAttr(struct tridentfb_par *par, int reg, 712 unsigned char val) 713 { 714 fb_readb(par->io_virt + VGA_IS1_RC); /* flip-flop to index */ 715 vga_mm_wattr(par->io_virt, reg, val); 716 } 717 718 static inline void write3CE(struct tridentfb_par *par, int reg, 719 unsigned char val) 720 { 721 vga_mm_wgfx(par->io_virt, reg, val); 722 } 723 724 static void enable_mmio(struct tridentfb_par *par) 725 { 726 /* Goto New Mode */ 727 vga_io_rseq(0x0B); 728 729 /* Unprotect registers */ 730 vga_io_wseq(NewMode1, 0x80); 731 if (!is_oldprotect(par->chip_id)) 732 vga_io_wseq(Protection, 0x92); 733 734 /* Enable MMIO */ 735 outb(PCIReg, 0x3D4); 736 outb(inb(0x3D5) | 0x01, 0x3D5); 737 } 738 739 static void disable_mmio(struct tridentfb_par *par) 740 { 741 /* Goto New Mode */ 742 vga_mm_rseq(par->io_virt, 0x0B); 743 744 /* Unprotect registers */ 745 vga_mm_wseq(par->io_virt, NewMode1, 0x80); 746 if (!is_oldprotect(par->chip_id)) 747 vga_mm_wseq(par->io_virt, Protection, 0x92); 748 749 /* Disable MMIO */ 750 t_outb(par, PCIReg, 0x3D4); 751 t_outb(par, t_inb(par, 0x3D5) & ~0x01, 0x3D5); 752 } 753 754 static inline void crtc_unlock(struct tridentfb_par *par) 755 { 756 write3X4(par, VGA_CRTC_V_SYNC_END, 757 read3X4(par, VGA_CRTC_V_SYNC_END) & 0x7F); 758 } 759 760 /* Return flat panel's maximum x resolution */ 761 static int get_nativex(struct tridentfb_par *par) 762 { 763 int x, y, tmp; 764 765 if (nativex) 766 return nativex; 767 768 tmp = (read3CE(par, VertStretch) >> 4) & 3; 769 770 switch (tmp) { 771 case 0: 772 x = 1280; y = 1024; 773 break; 774 case 2: 775 x = 1024; y = 768; 776 break; 777 case 3: 778 x = 800; y = 600; 779 break; 780 case 4: 781 x = 1400; y = 1050; 782 break; 783 case 1: 784 default: 785 x = 640; y = 480; 786 break; 787 } 788 789 output("%dx%d flat panel found\n", x, y); 790 return x; 791 } 792 793 /* Set pitch */ 794 static inline void set_lwidth(struct tridentfb_par *par, int width) 795 { 796 write3X4(par, VGA_CRTC_OFFSET, width & 0xFF); 797 /* chips older than TGUI9660 have only 1 width bit in AddColReg */ 798 /* touching the other one breaks I2C/DDC */ 799 if (par->chip_id == TGUI9440 || par->chip_id == CYBER9320) 800 write3X4(par, AddColReg, 801 (read3X4(par, AddColReg) & 0xEF) | ((width & 0x100) >> 4)); 802 else 803 write3X4(par, AddColReg, 804 (read3X4(par, AddColReg) & 0xCF) | ((width & 0x300) >> 4)); 805 } 806 807 /* For resolutions smaller than FP resolution stretch */ 808 static void screen_stretch(struct tridentfb_par *par) 809 { 810 if (par->chip_id != CYBERBLADEXPAi1) 811 write3CE(par, BiosReg, 0); 812 else 813 write3CE(par, BiosReg, 8); 814 write3CE(par, VertStretch, (read3CE(par, VertStretch) & 0x7C) | 1); 815 write3CE(par, HorStretch, (read3CE(par, HorStretch) & 0x7C) | 1); 816 } 817 818 /* For resolutions smaller than FP resolution center */ 819 static inline void screen_center(struct tridentfb_par *par) 820 { 821 write3CE(par, VertStretch, (read3CE(par, VertStretch) & 0x7C) | 0x80); 822 write3CE(par, HorStretch, (read3CE(par, HorStretch) & 0x7C) | 0x80); 823 } 824 825 /* Address of first shown pixel in display memory */ 826 static void set_screen_start(struct tridentfb_par *par, int base) 827 { 828 u8 tmp; 829 write3X4(par, VGA_CRTC_START_LO, base & 0xFF); 830 write3X4(par, VGA_CRTC_START_HI, (base & 0xFF00) >> 8); 831 tmp = read3X4(par, CRTCModuleTest) & 0xDF; 832 write3X4(par, CRTCModuleTest, tmp | ((base & 0x10000) >> 11)); 833 tmp = read3X4(par, CRTHiOrd) & 0xF8; 834 write3X4(par, CRTHiOrd, tmp | ((base & 0xE0000) >> 17)); 835 } 836 837 /* Set dotclock frequency */ 838 static void set_vclk(struct tridentfb_par *par, unsigned long freq) 839 { 840 int m, n, k; 841 unsigned long fi, d, di; 842 unsigned char best_m = 0, best_n = 0, best_k = 0; 843 unsigned char hi, lo; 844 unsigned char shift = !is_oldclock(par->chip_id) ? 2 : 1; 845 846 d = 20000; 847 for (k = shift; k >= 0; k--) 848 for (m = 1; m < 32; m++) { 849 n = ((m + 2) << shift) - 8; 850 for (n = (n < 0 ? 0 : n); n < 122; n++) { 851 fi = ((14318l * (n + 8)) / (m + 2)) >> k; 852 di = abs(fi - freq); 853 if (di < d || (di == d && k == best_k)) { 854 d = di; 855 best_n = n; 856 best_m = m; 857 best_k = k; 858 } 859 if (fi > freq) 860 break; 861 } 862 } 863 864 if (is_oldclock(par->chip_id)) { 865 lo = best_n | (best_m << 7); 866 hi = (best_m >> 1) | (best_k << 4); 867 } else { 868 lo = best_n; 869 hi = best_m | (best_k << 6); 870 } 871 872 if (is3Dchip(par->chip_id)) { 873 vga_mm_wseq(par->io_virt, ClockHigh, hi); 874 vga_mm_wseq(par->io_virt, ClockLow, lo); 875 } else { 876 t_outb(par, lo, 0x43C8); 877 t_outb(par, hi, 0x43C9); 878 } 879 debug("VCLK = %X %X\n", hi, lo); 880 } 881 882 /* Set number of lines for flat panels*/ 883 static void set_number_of_lines(struct tridentfb_par *par, int lines) 884 { 885 int tmp = read3CE(par, CyberEnhance) & 0x8F; 886 if (lines > 1024) 887 tmp |= 0x50; 888 else if (lines > 768) 889 tmp |= 0x30; 890 else if (lines > 600) 891 tmp |= 0x20; 892 else if (lines > 480) 893 tmp |= 0x10; 894 write3CE(par, CyberEnhance, tmp); 895 } 896 897 /* 898 * If we see that FP is active we assume we have one. 899 * Otherwise we have a CRT display. User can override. 900 */ 901 static int is_flatpanel(struct tridentfb_par *par) 902 { 903 if (fp) 904 return 1; 905 if (crt || !iscyber(par->chip_id)) 906 return 0; 907 return (read3CE(par, FPConfig) & 0x10) ? 1 : 0; 908 } 909 910 /* Try detecting the video memory size */ 911 static unsigned int get_memsize(struct tridentfb_par *par) 912 { 913 unsigned char tmp, tmp2; 914 unsigned int k; 915 916 /* If memory size provided by user */ 917 if (memsize) 918 k = memsize * Kb; 919 else 920 switch (par->chip_id) { 921 case CYBER9525DVD: 922 k = 2560 * Kb; 923 break; 924 default: 925 tmp = read3X4(par, SPR) & 0x0F; 926 switch (tmp) { 927 928 case 0x01: 929 k = 512 * Kb; 930 break; 931 case 0x02: 932 k = 6 * Mb; /* XP */ 933 break; 934 case 0x03: 935 k = 1 * Mb; 936 break; 937 case 0x04: 938 k = 8 * Mb; 939 break; 940 case 0x06: 941 k = 10 * Mb; /* XP */ 942 break; 943 case 0x07: 944 k = 2 * Mb; 945 break; 946 case 0x08: 947 k = 12 * Mb; /* XP */ 948 break; 949 case 0x0A: 950 k = 14 * Mb; /* XP */ 951 break; 952 case 0x0C: 953 k = 16 * Mb; /* XP */ 954 break; 955 case 0x0E: /* XP */ 956 957 tmp2 = vga_mm_rseq(par->io_virt, 0xC1); 958 switch (tmp2) { 959 case 0x00: 960 k = 20 * Mb; 961 break; 962 case 0x01: 963 k = 24 * Mb; 964 break; 965 case 0x10: 966 k = 28 * Mb; 967 break; 968 case 0x11: 969 k = 32 * Mb; 970 break; 971 default: 972 k = 1 * Mb; 973 break; 974 } 975 break; 976 977 case 0x0F: 978 k = 4 * Mb; 979 break; 980 default: 981 k = 1 * Mb; 982 break; 983 } 984 } 985 986 k -= memdiff * Kb; 987 output("framebuffer size = %d Kb\n", k / Kb); 988 return k; 989 } 990 991 /* See if we can handle the video mode described in var */ 992 static int tridentfb_check_var(struct fb_var_screeninfo *var, 993 struct fb_info *info) 994 { 995 struct tridentfb_par *par = info->par; 996 int bpp = var->bits_per_pixel; 997 int line_length; 998 int ramdac = 230000; /* 230MHz for most 3D chips */ 999 debug("enter\n"); 1000 1001 /* check color depth */ 1002 if (bpp == 24) 1003 bpp = var->bits_per_pixel = 32; 1004 if (bpp != 8 && bpp != 16 && bpp != 32) 1005 return -EINVAL; 1006 if (par->chip_id == TGUI9440 && bpp == 32) 1007 return -EINVAL; 1008 /* check whether resolution fits on panel and in memory */ 1009 if (par->flatpanel && nativex && var->xres > nativex) 1010 return -EINVAL; 1011 /* various resolution checks */ 1012 var->xres = (var->xres + 7) & ~0x7; 1013 if (var->xres > var->xres_virtual) 1014 var->xres_virtual = var->xres; 1015 if (var->yres > var->yres_virtual) 1016 var->yres_virtual = var->yres; 1017 if (var->xres_virtual > 4095 || var->yres > 2048) 1018 return -EINVAL; 1019 /* prevent from position overflow for acceleration */ 1020 if (var->yres_virtual > 0xffff) 1021 return -EINVAL; 1022 line_length = var->xres_virtual * bpp / 8; 1023 1024 if (!is3Dchip(par->chip_id) && 1025 !(info->flags & FBINFO_HWACCEL_DISABLED)) { 1026 /* acceleration requires line length to be power of 2 */ 1027 if (line_length <= 512) 1028 var->xres_virtual = 512 * 8 / bpp; 1029 else if (line_length <= 1024) 1030 var->xres_virtual = 1024 * 8 / bpp; 1031 else if (line_length <= 2048) 1032 var->xres_virtual = 2048 * 8 / bpp; 1033 else if (line_length <= 4096) 1034 var->xres_virtual = 4096 * 8 / bpp; 1035 else if (line_length <= 8192) 1036 var->xres_virtual = 8192 * 8 / bpp; 1037 else 1038 return -EINVAL; 1039 1040 line_length = var->xres_virtual * bpp / 8; 1041 } 1042 1043 /* datasheet specifies how to set panning only up to 4 MB */ 1044 if (line_length * (var->yres_virtual - var->yres) > (4 << 20)) 1045 var->yres_virtual = ((4 << 20) / line_length) + var->yres; 1046 1047 if (line_length * var->yres_virtual > info->fix.smem_len) 1048 return -EINVAL; 1049 1050 switch (bpp) { 1051 case 8: 1052 var->red.offset = 0; 1053 var->red.length = 8; 1054 var->green = var->red; 1055 var->blue = var->red; 1056 break; 1057 case 16: 1058 var->red.offset = 11; 1059 var->green.offset = 5; 1060 var->blue.offset = 0; 1061 var->red.length = 5; 1062 var->green.length = 6; 1063 var->blue.length = 5; 1064 break; 1065 case 32: 1066 var->red.offset = 16; 1067 var->green.offset = 8; 1068 var->blue.offset = 0; 1069 var->red.length = 8; 1070 var->green.length = 8; 1071 var->blue.length = 8; 1072 break; 1073 default: 1074 return -EINVAL; 1075 } 1076 1077 if (is_xp(par->chip_id)) 1078 ramdac = 350000; 1079 1080 switch (par->chip_id) { 1081 case TGUI9440: 1082 ramdac = (bpp >= 16) ? 45000 : 90000; 1083 break; 1084 case CYBER9320: 1085 case TGUI9660: 1086 ramdac = 135000; 1087 break; 1088 case PROVIDIA9685: 1089 case CYBER9388: 1090 case CYBER9382: 1091 case CYBER9385: 1092 ramdac = 170000; 1093 break; 1094 } 1095 1096 /* The clock is doubled for 32 bpp */ 1097 if (bpp == 32) 1098 ramdac /= 2; 1099 1100 if (PICOS2KHZ(var->pixclock) > ramdac) 1101 return -EINVAL; 1102 1103 debug("exit\n"); 1104 1105 return 0; 1106 1107 } 1108 1109 /* Pan the display */ 1110 static int tridentfb_pan_display(struct fb_var_screeninfo *var, 1111 struct fb_info *info) 1112 { 1113 struct tridentfb_par *par = info->par; 1114 unsigned int offset; 1115 1116 debug("enter\n"); 1117 offset = (var->xoffset + (var->yoffset * info->var.xres_virtual)) 1118 * info->var.bits_per_pixel / 32; 1119 set_screen_start(par, offset); 1120 debug("exit\n"); 1121 return 0; 1122 } 1123 1124 static inline void shadowmode_on(struct tridentfb_par *par) 1125 { 1126 write3CE(par, CyberControl, read3CE(par, CyberControl) | 0x81); 1127 } 1128 1129 static inline void shadowmode_off(struct tridentfb_par *par) 1130 { 1131 write3CE(par, CyberControl, read3CE(par, CyberControl) & 0x7E); 1132 } 1133 1134 /* Set the hardware to the requested video mode */ 1135 static int tridentfb_set_par(struct fb_info *info) 1136 { 1137 struct tridentfb_par *par = info->par; 1138 u32 htotal, hdispend, hsyncstart, hsyncend, hblankstart, hblankend; 1139 u32 vtotal, vdispend, vsyncstart, vsyncend, vblankstart, vblankend; 1140 struct fb_var_screeninfo *var = &info->var; 1141 int bpp = var->bits_per_pixel; 1142 unsigned char tmp; 1143 unsigned long vclk; 1144 1145 debug("enter\n"); 1146 hdispend = var->xres / 8 - 1; 1147 hsyncstart = (var->xres + var->right_margin) / 8; 1148 hsyncend = (var->xres + var->right_margin + var->hsync_len) / 8; 1149 htotal = (var->xres + var->left_margin + var->right_margin + 1150 var->hsync_len) / 8 - 5; 1151 hblankstart = hdispend + 1; 1152 hblankend = htotal + 3; 1153 1154 vdispend = var->yres - 1; 1155 vsyncstart = var->yres + var->lower_margin; 1156 vsyncend = vsyncstart + var->vsync_len; 1157 vtotal = var->upper_margin + vsyncend - 2; 1158 vblankstart = vdispend + 1; 1159 vblankend = vtotal; 1160 1161 if (info->var.vmode & FB_VMODE_INTERLACED) { 1162 vtotal /= 2; 1163 vdispend /= 2; 1164 vsyncstart /= 2; 1165 vsyncend /= 2; 1166 vblankstart /= 2; 1167 vblankend /= 2; 1168 } 1169 1170 enable_mmio(par); 1171 crtc_unlock(par); 1172 write3CE(par, CyberControl, 8); 1173 tmp = 0xEB; 1174 if (var->sync & FB_SYNC_HOR_HIGH_ACT) 1175 tmp &= ~0x40; 1176 if (var->sync & FB_SYNC_VERT_HIGH_ACT) 1177 tmp &= ~0x80; 1178 1179 if (par->flatpanel && var->xres < nativex) { 1180 /* 1181 * on flat panels with native size larger 1182 * than requested resolution decide whether 1183 * we stretch or center 1184 */ 1185 t_outb(par, tmp | 0xC0, VGA_MIS_W); 1186 1187 shadowmode_on(par); 1188 1189 if (center) 1190 screen_center(par); 1191 else if (stretch) 1192 screen_stretch(par); 1193 1194 } else { 1195 t_outb(par, tmp, VGA_MIS_W); 1196 write3CE(par, CyberControl, 8); 1197 } 1198 1199 /* vertical timing values */ 1200 write3X4(par, VGA_CRTC_V_TOTAL, vtotal & 0xFF); 1201 write3X4(par, VGA_CRTC_V_DISP_END, vdispend & 0xFF); 1202 write3X4(par, VGA_CRTC_V_SYNC_START, vsyncstart & 0xFF); 1203 write3X4(par, VGA_CRTC_V_SYNC_END, (vsyncend & 0x0F)); 1204 write3X4(par, VGA_CRTC_V_BLANK_START, vblankstart & 0xFF); 1205 write3X4(par, VGA_CRTC_V_BLANK_END, vblankend & 0xFF); 1206 1207 /* horizontal timing values */ 1208 write3X4(par, VGA_CRTC_H_TOTAL, htotal & 0xFF); 1209 write3X4(par, VGA_CRTC_H_DISP, hdispend & 0xFF); 1210 write3X4(par, VGA_CRTC_H_SYNC_START, hsyncstart & 0xFF); 1211 write3X4(par, VGA_CRTC_H_SYNC_END, 1212 (hsyncend & 0x1F) | ((hblankend & 0x20) << 2)); 1213 write3X4(par, VGA_CRTC_H_BLANK_START, hblankstart & 0xFF); 1214 write3X4(par, VGA_CRTC_H_BLANK_END, hblankend & 0x1F); 1215 1216 /* higher bits of vertical timing values */ 1217 tmp = 0x10; 1218 if (vtotal & 0x100) tmp |= 0x01; 1219 if (vdispend & 0x100) tmp |= 0x02; 1220 if (vsyncstart & 0x100) tmp |= 0x04; 1221 if (vblankstart & 0x100) tmp |= 0x08; 1222 1223 if (vtotal & 0x200) tmp |= 0x20; 1224 if (vdispend & 0x200) tmp |= 0x40; 1225 if (vsyncstart & 0x200) tmp |= 0x80; 1226 write3X4(par, VGA_CRTC_OVERFLOW, tmp); 1227 1228 tmp = read3X4(par, CRTHiOrd) & 0x07; 1229 tmp |= 0x08; /* line compare bit 10 */ 1230 if (vtotal & 0x400) tmp |= 0x80; 1231 if (vblankstart & 0x400) tmp |= 0x40; 1232 if (vsyncstart & 0x400) tmp |= 0x20; 1233 if (vdispend & 0x400) tmp |= 0x10; 1234 write3X4(par, CRTHiOrd, tmp); 1235 1236 tmp = (htotal >> 8) & 0x01; 1237 tmp |= (hdispend >> 7) & 0x02; 1238 tmp |= (hsyncstart >> 5) & 0x08; 1239 tmp |= (hblankstart >> 4) & 0x10; 1240 write3X4(par, HorizOverflow, tmp); 1241 1242 tmp = 0x40; 1243 if (vblankstart & 0x200) tmp |= 0x20; 1244 //FIXME if (info->var.vmode & FB_VMODE_DOUBLE) tmp |= 0x80; /* double scan for 200 line modes */ 1245 write3X4(par, VGA_CRTC_MAX_SCAN, tmp); 1246 1247 write3X4(par, VGA_CRTC_LINE_COMPARE, 0xFF); 1248 write3X4(par, VGA_CRTC_PRESET_ROW, 0); 1249 write3X4(par, VGA_CRTC_MODE, 0xC3); 1250 1251 write3X4(par, LinearAddReg, 0x20); /* enable linear addressing */ 1252 1253 tmp = (info->var.vmode & FB_VMODE_INTERLACED) ? 0x84 : 0x80; 1254 /* enable access extended memory */ 1255 write3X4(par, CRTCModuleTest, tmp); 1256 tmp = read3CE(par, MiscIntContReg) & ~0x4; 1257 if (info->var.vmode & FB_VMODE_INTERLACED) 1258 tmp |= 0x4; 1259 write3CE(par, MiscIntContReg, tmp); 1260 1261 /* enable GE for text acceleration */ 1262 write3X4(par, GraphEngReg, 0x80); 1263 1264 switch (bpp) { 1265 case 8: 1266 tmp = 0x00; 1267 break; 1268 case 16: 1269 tmp = 0x05; 1270 break; 1271 case 24: 1272 tmp = 0x29; 1273 break; 1274 case 32: 1275 tmp = 0x09; 1276 break; 1277 } 1278 1279 write3X4(par, PixelBusReg, tmp); 1280 1281 tmp = read3X4(par, DRAMControl); 1282 if (!is_oldprotect(par->chip_id)) 1283 tmp |= 0x10; 1284 if (iscyber(par->chip_id)) 1285 tmp |= 0x20; 1286 write3X4(par, DRAMControl, tmp); /* both IO, linear enable */ 1287 1288 write3X4(par, InterfaceSel, read3X4(par, InterfaceSel) | 0x40); 1289 if (!is_xp(par->chip_id)) 1290 write3X4(par, Performance, read3X4(par, Performance) | 0x10); 1291 /* MMIO & PCI read and write burst enable */ 1292 if (par->chip_id != TGUI9440 && par->chip_id != IMAGE975) 1293 write3X4(par, PCIReg, read3X4(par, PCIReg) | 0x06); 1294 1295 vga_mm_wseq(par->io_virt, 0, 3); 1296 vga_mm_wseq(par->io_virt, 1, 1); /* set char clock 8 dots wide */ 1297 /* enable 4 maps because needed in chain4 mode */ 1298 vga_mm_wseq(par->io_virt, 2, 0x0F); 1299 vga_mm_wseq(par->io_virt, 3, 0); 1300 vga_mm_wseq(par->io_virt, 4, 0x0E); /* memory mode enable bitmaps ?? */ 1301 1302 /* convert from picoseconds to kHz */ 1303 vclk = PICOS2KHZ(info->var.pixclock); 1304 1305 /* divide clock by 2 if 32bpp chain4 mode display and CPU path */ 1306 tmp = read3CE(par, MiscExtFunc) & 0xF0; 1307 if (bpp == 32 || (par->chip_id == TGUI9440 && bpp == 16)) { 1308 tmp |= 8; 1309 vclk *= 2; 1310 } 1311 set_vclk(par, vclk); 1312 write3CE(par, MiscExtFunc, tmp | 0x12); 1313 write3CE(par, 0x5, 0x40); /* no CGA compat, allow 256 col */ 1314 write3CE(par, 0x6, 0x05); /* graphics mode */ 1315 write3CE(par, 0x7, 0x0F); /* planes? */ 1316 1317 /* graphics mode and support 256 color modes */ 1318 writeAttr(par, 0x10, 0x41); 1319 writeAttr(par, 0x12, 0x0F); /* planes */ 1320 writeAttr(par, 0x13, 0); /* horizontal pel panning */ 1321 1322 /* colors */ 1323 for (tmp = 0; tmp < 0x10; tmp++) 1324 writeAttr(par, tmp, tmp); 1325 fb_readb(par->io_virt + VGA_IS1_RC); /* flip-flop to index */ 1326 t_outb(par, 0x20, VGA_ATT_W); /* enable attr */ 1327 1328 switch (bpp) { 1329 case 8: 1330 tmp = 0; 1331 break; 1332 case 16: 1333 tmp = 0x30; 1334 break; 1335 case 24: 1336 case 32: 1337 tmp = 0xD0; 1338 break; 1339 } 1340 1341 t_inb(par, VGA_PEL_IW); 1342 t_inb(par, VGA_PEL_MSK); 1343 t_inb(par, VGA_PEL_MSK); 1344 t_inb(par, VGA_PEL_MSK); 1345 t_inb(par, VGA_PEL_MSK); 1346 t_outb(par, tmp, VGA_PEL_MSK); 1347 t_inb(par, VGA_PEL_IW); 1348 1349 if (par->flatpanel) 1350 set_number_of_lines(par, info->var.yres); 1351 info->fix.line_length = info->var.xres_virtual * bpp / 8; 1352 set_lwidth(par, info->fix.line_length / 8); 1353 1354 if (!(info->flags & FBINFO_HWACCEL_DISABLED)) 1355 par->init_accel(par, info->var.xres_virtual, bpp); 1356 1357 info->fix.visual = (bpp == 8) ? FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_TRUECOLOR; 1358 info->cmap.len = (bpp == 8) ? 256 : 16; 1359 debug("exit\n"); 1360 return 0; 1361 } 1362 1363 /* Set one color register */ 1364 static int tridentfb_setcolreg(unsigned regno, unsigned red, unsigned green, 1365 unsigned blue, unsigned transp, 1366 struct fb_info *info) 1367 { 1368 int bpp = info->var.bits_per_pixel; 1369 struct tridentfb_par *par = info->par; 1370 1371 if (regno >= info->cmap.len) 1372 return 1; 1373 1374 if (bpp == 8) { 1375 t_outb(par, 0xFF, VGA_PEL_MSK); 1376 t_outb(par, regno, VGA_PEL_IW); 1377 1378 t_outb(par, red >> 10, VGA_PEL_D); 1379 t_outb(par, green >> 10, VGA_PEL_D); 1380 t_outb(par, blue >> 10, VGA_PEL_D); 1381 1382 } else if (regno < 16) { 1383 if (bpp == 16) { /* RGB 565 */ 1384 u32 col; 1385 1386 col = (red & 0xF800) | ((green & 0xFC00) >> 5) | 1387 ((blue & 0xF800) >> 11); 1388 col |= col << 16; 1389 ((u32 *)(info->pseudo_palette))[regno] = col; 1390 } else if (bpp == 32) /* ARGB 8888 */ 1391 ((u32 *)info->pseudo_palette)[regno] = 1392 ((transp & 0xFF00) << 16) | 1393 ((red & 0xFF00) << 8) | 1394 ((green & 0xFF00)) | 1395 ((blue & 0xFF00) >> 8); 1396 } 1397 1398 return 0; 1399 } 1400 1401 /* Try blanking the screen. For flat panels it does nothing */ 1402 static int tridentfb_blank(int blank_mode, struct fb_info *info) 1403 { 1404 unsigned char PMCont, DPMSCont; 1405 struct tridentfb_par *par = info->par; 1406 1407 debug("enter\n"); 1408 if (par->flatpanel) 1409 return 0; 1410 t_outb(par, 0x04, 0x83C8); /* Read DPMS Control */ 1411 PMCont = t_inb(par, 0x83C6) & 0xFC; 1412 DPMSCont = read3CE(par, PowerStatus) & 0xFC; 1413 switch (blank_mode) { 1414 case FB_BLANK_UNBLANK: 1415 /* Screen: On, HSync: On, VSync: On */ 1416 case FB_BLANK_NORMAL: 1417 /* Screen: Off, HSync: On, VSync: On */ 1418 PMCont |= 0x03; 1419 DPMSCont |= 0x00; 1420 break; 1421 case FB_BLANK_HSYNC_SUSPEND: 1422 /* Screen: Off, HSync: Off, VSync: On */ 1423 PMCont |= 0x02; 1424 DPMSCont |= 0x01; 1425 break; 1426 case FB_BLANK_VSYNC_SUSPEND: 1427 /* Screen: Off, HSync: On, VSync: Off */ 1428 PMCont |= 0x02; 1429 DPMSCont |= 0x02; 1430 break; 1431 case FB_BLANK_POWERDOWN: 1432 /* Screen: Off, HSync: Off, VSync: Off */ 1433 PMCont |= 0x00; 1434 DPMSCont |= 0x03; 1435 break; 1436 } 1437 1438 write3CE(par, PowerStatus, DPMSCont); 1439 t_outb(par, 4, 0x83C8); 1440 t_outb(par, PMCont, 0x83C6); 1441 1442 debug("exit\n"); 1443 1444 /* let fbcon do a softblank for us */ 1445 return (blank_mode == FB_BLANK_NORMAL) ? 1 : 0; 1446 } 1447 1448 static struct fb_ops tridentfb_ops = { 1449 .owner = THIS_MODULE, 1450 .fb_setcolreg = tridentfb_setcolreg, 1451 .fb_pan_display = tridentfb_pan_display, 1452 .fb_blank = tridentfb_blank, 1453 .fb_check_var = tridentfb_check_var, 1454 .fb_set_par = tridentfb_set_par, 1455 .fb_fillrect = tridentfb_fillrect, 1456 .fb_copyarea = tridentfb_copyarea, 1457 .fb_imageblit = tridentfb_imageblit, 1458 .fb_sync = tridentfb_sync, 1459 }; 1460 1461 static int trident_pci_probe(struct pci_dev *dev, 1462 const struct pci_device_id *id) 1463 { 1464 int err; 1465 unsigned char revision; 1466 struct fb_info *info; 1467 struct tridentfb_par *default_par; 1468 int chip3D; 1469 int chip_id; 1470 bool found = false; 1471 1472 err = pci_enable_device(dev); 1473 if (err) 1474 return err; 1475 1476 info = framebuffer_alloc(sizeof(struct tridentfb_par), &dev->dev); 1477 if (!info) 1478 return -ENOMEM; 1479 default_par = info->par; 1480 1481 chip_id = id->device; 1482 1483 /* If PCI id is 0x9660 then further detect chip type */ 1484 1485 if (chip_id == TGUI9660) { 1486 revision = vga_io_rseq(RevisionID); 1487 1488 switch (revision) { 1489 case 0x21: 1490 chip_id = PROVIDIA9685; 1491 break; 1492 case 0x22: 1493 case 0x23: 1494 chip_id = CYBER9397; 1495 break; 1496 case 0x2A: 1497 chip_id = CYBER9397DVD; 1498 break; 1499 case 0x30: 1500 case 0x33: 1501 case 0x34: 1502 case 0x35: 1503 case 0x38: 1504 case 0x3A: 1505 case 0xB3: 1506 chip_id = CYBER9385; 1507 break; 1508 case 0x40 ... 0x43: 1509 chip_id = CYBER9382; 1510 break; 1511 case 0x4A: 1512 chip_id = CYBER9388; 1513 break; 1514 default: 1515 break; 1516 } 1517 } 1518 1519 chip3D = is3Dchip(chip_id); 1520 1521 if (is_xp(chip_id)) { 1522 default_par->init_accel = xp_init_accel; 1523 default_par->wait_engine = xp_wait_engine; 1524 default_par->fill_rect = xp_fill_rect; 1525 default_par->copy_rect = xp_copy_rect; 1526 tridentfb_fix.accel = FB_ACCEL_TRIDENT_BLADEXP; 1527 } else if (is_blade(chip_id)) { 1528 default_par->init_accel = blade_init_accel; 1529 default_par->wait_engine = blade_wait_engine; 1530 default_par->fill_rect = blade_fill_rect; 1531 default_par->copy_rect = blade_copy_rect; 1532 default_par->image_blit = blade_image_blit; 1533 tridentfb_fix.accel = FB_ACCEL_TRIDENT_BLADE3D; 1534 } else if (chip3D) { /* 3DImage family left */ 1535 default_par->init_accel = image_init_accel; 1536 default_par->wait_engine = image_wait_engine; 1537 default_par->fill_rect = image_fill_rect; 1538 default_par->copy_rect = image_copy_rect; 1539 tridentfb_fix.accel = FB_ACCEL_TRIDENT_3DIMAGE; 1540 } else { /* TGUI 9440/96XX family */ 1541 default_par->init_accel = tgui_init_accel; 1542 default_par->wait_engine = xp_wait_engine; 1543 default_par->fill_rect = tgui_fill_rect; 1544 default_par->copy_rect = tgui_copy_rect; 1545 tridentfb_fix.accel = FB_ACCEL_TRIDENT_TGUI; 1546 } 1547 1548 default_par->chip_id = chip_id; 1549 1550 /* setup MMIO region */ 1551 tridentfb_fix.mmio_start = pci_resource_start(dev, 1); 1552 tridentfb_fix.mmio_len = pci_resource_len(dev, 1); 1553 1554 if (!request_mem_region(tridentfb_fix.mmio_start, 1555 tridentfb_fix.mmio_len, "tridentfb")) { 1556 debug("request_region failed!\n"); 1557 framebuffer_release(info); 1558 return -1; 1559 } 1560 1561 default_par->io_virt = ioremap_nocache(tridentfb_fix.mmio_start, 1562 tridentfb_fix.mmio_len); 1563 1564 if (!default_par->io_virt) { 1565 debug("ioremap failed\n"); 1566 err = -1; 1567 goto out_unmap1; 1568 } 1569 1570 enable_mmio(default_par); 1571 1572 /* setup framebuffer memory */ 1573 tridentfb_fix.smem_start = pci_resource_start(dev, 0); 1574 tridentfb_fix.smem_len = get_memsize(default_par); 1575 1576 if (!request_mem_region(tridentfb_fix.smem_start, 1577 tridentfb_fix.smem_len, "tridentfb")) { 1578 debug("request_mem_region failed!\n"); 1579 disable_mmio(info->par); 1580 err = -1; 1581 goto out_unmap1; 1582 } 1583 1584 info->screen_base = ioremap_nocache(tridentfb_fix.smem_start, 1585 tridentfb_fix.smem_len); 1586 1587 if (!info->screen_base) { 1588 debug("ioremap failed\n"); 1589 err = -1; 1590 goto out_unmap2; 1591 } 1592 1593 default_par->flatpanel = is_flatpanel(default_par); 1594 1595 if (default_par->flatpanel) 1596 nativex = get_nativex(default_par); 1597 1598 info->fix = tridentfb_fix; 1599 info->fbops = &tridentfb_ops; 1600 info->pseudo_palette = default_par->pseudo_pal; 1601 1602 info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN; 1603 if (!noaccel && default_par->init_accel) { 1604 info->flags &= ~FBINFO_HWACCEL_DISABLED; 1605 info->flags |= FBINFO_HWACCEL_COPYAREA; 1606 info->flags |= FBINFO_HWACCEL_FILLRECT; 1607 } else 1608 info->flags |= FBINFO_HWACCEL_DISABLED; 1609 1610 if (is_blade(chip_id) && chip_id != BLADE3D) 1611 info->flags |= FBINFO_READS_FAST; 1612 1613 info->pixmap.addr = kmalloc(4096, GFP_KERNEL); 1614 if (!info->pixmap.addr) { 1615 err = -ENOMEM; 1616 goto out_unmap2; 1617 } 1618 1619 info->pixmap.size = 4096; 1620 info->pixmap.buf_align = 4; 1621 info->pixmap.scan_align = 1; 1622 info->pixmap.access_align = 32; 1623 info->pixmap.flags = FB_PIXMAP_SYSTEM; 1624 info->var.bits_per_pixel = 8; 1625 1626 if (default_par->image_blit) { 1627 info->flags |= FBINFO_HWACCEL_IMAGEBLIT; 1628 info->pixmap.scan_align = 4; 1629 } 1630 1631 if (noaccel) { 1632 printk(KERN_DEBUG "disabling acceleration\n"); 1633 info->flags |= FBINFO_HWACCEL_DISABLED; 1634 info->pixmap.scan_align = 1; 1635 } 1636 1637 if (tridentfb_setup_ddc_bus(info) == 0) { 1638 u8 *edid = fb_ddc_read(&default_par->ddc_adapter); 1639 1640 default_par->ddc_registered = true; 1641 if (edid) { 1642 fb_edid_to_monspecs(edid, &info->monspecs); 1643 kfree(edid); 1644 if (!info->monspecs.modedb) 1645 dev_err(info->device, "error getting mode database\n"); 1646 else { 1647 const struct fb_videomode *m; 1648 1649 fb_videomode_to_modelist(info->monspecs.modedb, 1650 info->monspecs.modedb_len, 1651 &info->modelist); 1652 m = fb_find_best_display(&info->monspecs, 1653 &info->modelist); 1654 if (m) { 1655 fb_videomode_to_var(&info->var, m); 1656 /* fill all other info->var's fields */ 1657 if (tridentfb_check_var(&info->var, 1658 info) == 0) 1659 found = true; 1660 } 1661 } 1662 } 1663 } 1664 1665 if (!mode_option && !found) 1666 mode_option = "640x480-8@60"; 1667 1668 /* Prepare startup mode */ 1669 if (mode_option) { 1670 err = fb_find_mode(&info->var, info, mode_option, 1671 info->monspecs.modedb, 1672 info->monspecs.modedb_len, 1673 NULL, info->var.bits_per_pixel); 1674 if (!err || err == 4) { 1675 err = -EINVAL; 1676 dev_err(info->device, "mode %s not found\n", 1677 mode_option); 1678 fb_destroy_modedb(info->monspecs.modedb); 1679 info->monspecs.modedb = NULL; 1680 goto out_unmap2; 1681 } 1682 } 1683 1684 fb_destroy_modedb(info->monspecs.modedb); 1685 info->monspecs.modedb = NULL; 1686 1687 err = fb_alloc_cmap(&info->cmap, 256, 0); 1688 if (err < 0) 1689 goto out_unmap2; 1690 1691 info->var.activate |= FB_ACTIVATE_NOW; 1692 info->device = &dev->dev; 1693 if (register_framebuffer(info) < 0) { 1694 printk(KERN_ERR "tridentfb: could not register framebuffer\n"); 1695 fb_dealloc_cmap(&info->cmap); 1696 err = -EINVAL; 1697 goto out_unmap2; 1698 } 1699 output("fb%d: %s frame buffer device %dx%d-%dbpp\n", 1700 info->node, info->fix.id, info->var.xres, 1701 info->var.yres, info->var.bits_per_pixel); 1702 1703 pci_set_drvdata(dev, info); 1704 return 0; 1705 1706 out_unmap2: 1707 if (default_par->ddc_registered) 1708 i2c_del_adapter(&default_par->ddc_adapter); 1709 kfree(info->pixmap.addr); 1710 if (info->screen_base) 1711 iounmap(info->screen_base); 1712 release_mem_region(tridentfb_fix.smem_start, tridentfb_fix.smem_len); 1713 disable_mmio(info->par); 1714 out_unmap1: 1715 if (default_par->io_virt) 1716 iounmap(default_par->io_virt); 1717 release_mem_region(tridentfb_fix.mmio_start, tridentfb_fix.mmio_len); 1718 framebuffer_release(info); 1719 return err; 1720 } 1721 1722 static 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 release_mem_region(tridentfb_fix.smem_start, tridentfb_fix.smem_len); 1733 release_mem_region(tridentfb_fix.mmio_start, tridentfb_fix.mmio_len); 1734 kfree(info->pixmap.addr); 1735 fb_dealloc_cmap(&info->cmap); 1736 framebuffer_release(info); 1737 } 1738 1739 /* List of boards that we are trying to support */ 1740 static const struct pci_device_id trident_devices[] = { 1741 {PCI_VENDOR_ID_TRIDENT, BLADE3D, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, 1742 {PCI_VENDOR_ID_TRIDENT, CYBERBLADEi7, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, 1743 {PCI_VENDOR_ID_TRIDENT, CYBERBLADEi7D, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, 1744 {PCI_VENDOR_ID_TRIDENT, CYBERBLADEi1, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, 1745 {PCI_VENDOR_ID_TRIDENT, CYBERBLADEi1D, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, 1746 {PCI_VENDOR_ID_TRIDENT, CYBERBLADEAi1, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, 1747 {PCI_VENDOR_ID_TRIDENT, CYBERBLADEAi1D, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, 1748 {PCI_VENDOR_ID_TRIDENT, CYBERBLADEE4, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, 1749 {PCI_VENDOR_ID_TRIDENT, TGUI9440, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, 1750 {PCI_VENDOR_ID_TRIDENT, TGUI9660, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, 1751 {PCI_VENDOR_ID_TRIDENT, IMAGE975, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, 1752 {PCI_VENDOR_ID_TRIDENT, IMAGE985, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, 1753 {PCI_VENDOR_ID_TRIDENT, CYBER9320, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, 1754 {PCI_VENDOR_ID_TRIDENT, CYBER9388, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, 1755 {PCI_VENDOR_ID_TRIDENT, CYBER9520, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, 1756 {PCI_VENDOR_ID_TRIDENT, CYBER9525DVD, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, 1757 {PCI_VENDOR_ID_TRIDENT, CYBER9397, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, 1758 {PCI_VENDOR_ID_TRIDENT, CYBER9397DVD, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, 1759 {PCI_VENDOR_ID_TRIDENT, CYBERBLADEXPAi1, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, 1760 {PCI_VENDOR_ID_TRIDENT, CYBERBLADEXPm8, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, 1761 {PCI_VENDOR_ID_TRIDENT, CYBERBLADEXPm16, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, 1762 {0,} 1763 }; 1764 1765 MODULE_DEVICE_TABLE(pci, trident_devices); 1766 1767 static struct pci_driver tridentfb_pci_driver = { 1768 .name = "tridentfb", 1769 .id_table = trident_devices, 1770 .probe = trident_pci_probe, 1771 .remove = trident_pci_remove, 1772 }; 1773 1774 /* 1775 * Parse user specified options (`video=trident:') 1776 * example: 1777 * video=trident:800x600,bpp=16,noaccel 1778 */ 1779 #ifndef MODULE 1780 static int __init tridentfb_setup(char *options) 1781 { 1782 char *opt; 1783 if (!options || !*options) 1784 return 0; 1785 while ((opt = strsep(&options, ",")) != NULL) { 1786 if (!*opt) 1787 continue; 1788 if (!strncmp(opt, "noaccel", 7)) 1789 noaccel = 1; 1790 else if (!strncmp(opt, "fp", 2)) 1791 fp = 1; 1792 else if (!strncmp(opt, "crt", 3)) 1793 fp = 0; 1794 else if (!strncmp(opt, "bpp=", 4)) 1795 bpp = simple_strtoul(opt + 4, NULL, 0); 1796 else if (!strncmp(opt, "center", 6)) 1797 center = 1; 1798 else if (!strncmp(opt, "stretch", 7)) 1799 stretch = 1; 1800 else if (!strncmp(opt, "memsize=", 8)) 1801 memsize = simple_strtoul(opt + 8, NULL, 0); 1802 else if (!strncmp(opt, "memdiff=", 8)) 1803 memdiff = simple_strtoul(opt + 8, NULL, 0); 1804 else if (!strncmp(opt, "nativex=", 8)) 1805 nativex = simple_strtoul(opt + 8, NULL, 0); 1806 else 1807 mode_option = opt; 1808 } 1809 return 0; 1810 } 1811 #endif 1812 1813 static int __init tridentfb_init(void) 1814 { 1815 #ifndef MODULE 1816 char *option = NULL; 1817 1818 if (fb_get_options("tridentfb", &option)) 1819 return -ENODEV; 1820 tridentfb_setup(option); 1821 #endif 1822 return pci_register_driver(&tridentfb_pci_driver); 1823 } 1824 1825 static void __exit tridentfb_exit(void) 1826 { 1827 pci_unregister_driver(&tridentfb_pci_driver); 1828 } 1829 1830 module_init(tridentfb_init); 1831 module_exit(tridentfb_exit); 1832 1833 MODULE_AUTHOR("Jani Monoses <jani@iv.ro>"); 1834 MODULE_DESCRIPTION("Framebuffer driver for Trident cards"); 1835 MODULE_LICENSE("GPL"); 1836 MODULE_ALIAS("cyblafb"); 1837 1838