root/drivers/video/fbdev/tridentfb.c

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DEFINITIONS

This source file includes following definitions.
  1. is_oldclock
  2. is_oldprotect
  3. is_blade
  4. is_xp
  5. is3Dchip
  6. iscyber
  7. t_outb
  8. t_inb
  9. writemmr
  10. readmmr
  11. tridentfb_ddc_setscl_tgui
  12. tridentfb_ddc_setsda_tgui
  13. tridentfb_ddc_getsda_tgui
  14. tridentfb_ddc_setscl
  15. tridentfb_ddc_setsda
  16. tridentfb_ddc_getscl
  17. tridentfb_ddc_getsda
  18. tridentfb_setup_ddc_bus
  19. blade_init_accel
  20. blade_wait_engine
  21. blade_fill_rect
  22. blade_image_blit
  23. blade_copy_rect
  24. xp_init_accel
  25. xp_wait_engine
  26. xp_fill_rect
  27. xp_copy_rect
  28. image_init_accel
  29. image_wait_engine
  30. image_fill_rect
  31. image_copy_rect
  32. tgui_init_accel
  33. tgui_fill_rect
  34. tgui_copy_rect
  35. tridentfb_fillrect
  36. tridentfb_imageblit
  37. tridentfb_copyarea
  38. tridentfb_sync
  39. read3X4
  40. write3X4
  41. read3CE
  42. writeAttr
  43. write3CE
  44. enable_mmio
  45. disable_mmio
  46. crtc_unlock
  47. get_nativex
  48. set_lwidth
  49. screen_stretch
  50. screen_center
  51. set_screen_start
  52. set_vclk
  53. set_number_of_lines
  54. is_flatpanel
  55. get_memsize
  56. tridentfb_check_var
  57. tridentfb_pan_display
  58. shadowmode_on
  59. shadowmode_off
  60. tridentfb_set_par
  61. tridentfb_setcolreg
  62. tridentfb_blank
  63. trident_pci_probe
  64. trident_pci_remove
  65. tridentfb_setup
  66. tridentfb_init
  67. tridentfb_exit

   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/module.h>
  20 #include <linux/fb.h>
  21 #include <linux/init.h>
  22 #include <linux/pci.h>
  23 #include <linux/slab.h>
  24 
  25 #include <linux/delay.h>
  26 #include <video/vga.h>
  27 #include <video/trident.h>
  28 
  29 #include <linux/i2c.h>
  30 #include <linux/i2c-algo-bit.h>
  31 
  32 struct tridentfb_par {
  33         void __iomem *io_virt;  /* iospace virtual memory address */
  34         u32 pseudo_pal[16];
  35         int chip_id;
  36         int flatpanel;
  37         void (*init_accel) (struct tridentfb_par *, int, int);
  38         void (*wait_engine) (struct tridentfb_par *);
  39         void (*fill_rect)
  40                 (struct tridentfb_par *par, u32, u32, u32, u32, u32, u32);
  41         void (*copy_rect)
  42                 (struct tridentfb_par *par, u32, u32, u32, u32, u32, u32);
  43         void (*image_blit)
  44                 (struct tridentfb_par *par, const char*,
  45                  u32, u32, u32, u32, u32, u32);
  46         unsigned char eng_oper; /* engine operation... */
  47         bool ddc_registered;
  48         struct i2c_adapter ddc_adapter;
  49         struct i2c_algo_bit_data ddc_algo;
  50 };
  51 
  52 static struct fb_fix_screeninfo tridentfb_fix = {
  53         .id = "Trident",
  54         .type = FB_TYPE_PACKED_PIXELS,
  55         .ypanstep = 1,
  56         .visual = FB_VISUAL_PSEUDOCOLOR,
  57         .accel = FB_ACCEL_NONE,
  58 };
  59 
  60 /* defaults which are normally overriden by user values */
  61 
  62 /* video mode */
  63 static char *mode_option;
  64 static int bpp = 8;
  65 
  66 static int noaccel;
  67 
  68 static int center;
  69 static int stretch;
  70 
  71 static int fp;
  72 static int crt;
  73 
  74 static int memsize;
  75 static int memdiff;
  76 static int nativex;
  77 
  78 module_param(mode_option, charp, 0);
  79 MODULE_PARM_DESC(mode_option, "Initial video mode e.g. '648x480-8@60'");
  80 module_param_named(mode, mode_option, charp, 0);
  81 MODULE_PARM_DESC(mode, "Initial video mode e.g. '648x480-8@60' (deprecated)");
  82 module_param(bpp, int, 0);
  83 module_param(center, int, 0);
  84 module_param(stretch, int, 0);
  85 module_param(noaccel, int, 0);
  86 module_param(memsize, int, 0);
  87 module_param(memdiff, int, 0);
  88 module_param(nativex, int, 0);
  89 module_param(fp, int, 0);
  90 MODULE_PARM_DESC(fp, "Define if flatpanel is connected");
  91 module_param(crt, int, 0);
  92 MODULE_PARM_DESC(crt, "Define if CRT is connected");
  93 
  94 static inline int is_oldclock(int id)
  95 {
  96         return  (id == TGUI9440) ||
  97                 (id == TGUI9660) ||
  98                 (id == CYBER9320);
  99 }
 100 
 101 static inline int is_oldprotect(int id)
 102 {
 103         return  is_oldclock(id) ||
 104                 (id == PROVIDIA9685) ||
 105                 (id == CYBER9382) ||
 106                 (id == CYBER9385);
 107 }
 108 
 109 static inline int is_blade(int id)
 110 {
 111         return  (id == BLADE3D) ||
 112                 (id == CYBERBLADEE4) ||
 113                 (id == CYBERBLADEi7) ||
 114                 (id == CYBERBLADEi7D) ||
 115                 (id == CYBERBLADEi1) ||
 116                 (id == CYBERBLADEi1D) ||
 117                 (id == CYBERBLADEAi1) ||
 118                 (id == CYBERBLADEAi1D);
 119 }
 120 
 121 static inline int is_xp(int id)
 122 {
 123         return  (id == CYBERBLADEXPAi1) ||
 124                 (id == CYBERBLADEXPm8) ||
 125                 (id == CYBERBLADEXPm16);
 126 }
 127 
 128 static inline int is3Dchip(int id)
 129 {
 130         return  is_blade(id) || is_xp(id) ||
 131                 (id == CYBER9397) || (id == CYBER9397DVD) ||
 132                 (id == CYBER9520) || (id == CYBER9525DVD) ||
 133                 (id == IMAGE975) || (id == IMAGE985);
 134 }
 135 
 136 static inline int iscyber(int id)
 137 {
 138         switch (id) {
 139         case CYBER9388:
 140         case CYBER9382:
 141         case CYBER9385:
 142         case CYBER9397:
 143         case CYBER9397DVD:
 144         case CYBER9520:
 145         case CYBER9525DVD:
 146         case CYBERBLADEE4:
 147         case CYBERBLADEi7D:
 148         case CYBERBLADEi1:
 149         case CYBERBLADEi1D:
 150         case CYBERBLADEAi1:
 151         case CYBERBLADEAi1D:
 152         case CYBERBLADEXPAi1:
 153                 return 1;
 154 
 155         case CYBER9320:
 156         case CYBERBLADEi7:      /* VIA MPV4 integrated version */
 157         default:
 158                 /* case CYBERBLDAEXPm8:  Strange */
 159                 /* case CYBERBLDAEXPm16: Strange */
 160                 return 0;
 161         }
 162 }
 163 
 164 static inline void t_outb(struct tridentfb_par *p, u8 val, u16 reg)
 165 {
 166         fb_writeb(val, p->io_virt + reg);
 167 }
 168 
 169 static inline u8 t_inb(struct tridentfb_par *p, u16 reg)
 170 {
 171         return fb_readb(p->io_virt + reg);
 172 }
 173 
 174 static inline void writemmr(struct tridentfb_par *par, u16 r, u32 v)
 175 {
 176         fb_writel(v, par->io_virt + r);
 177 }
 178 
 179 static inline u32 readmmr(struct tridentfb_par *par, u16 r)
 180 {
 181         return fb_readl(par->io_virt + r);
 182 }
 183 
 184 #define DDC_SDA_TGUI            BIT(0)
 185 #define DDC_SCL_TGUI            BIT(1)
 186 #define DDC_SCL_DRIVE_TGUI      BIT(2)
 187 #define DDC_SDA_DRIVE_TGUI      BIT(3)
 188 #define DDC_MASK_TGUI           (DDC_SCL_DRIVE_TGUI | DDC_SDA_DRIVE_TGUI)
 189 
 190 static void tridentfb_ddc_setscl_tgui(void *data, int val)
 191 {
 192         struct tridentfb_par *par = data;
 193         u8 reg = vga_mm_rcrt(par->io_virt, I2C) & DDC_MASK_TGUI;
 194 
 195         if (val)
 196                 reg &= ~DDC_SCL_DRIVE_TGUI; /* disable drive - don't drive hi */
 197         else
 198                 reg |= DDC_SCL_DRIVE_TGUI; /* drive low */
 199 
 200         vga_mm_wcrt(par->io_virt, I2C, reg);
 201 }
 202 
 203 static void tridentfb_ddc_setsda_tgui(void *data, int val)
 204 {
 205         struct tridentfb_par *par = data;
 206         u8 reg = vga_mm_rcrt(par->io_virt, I2C) & DDC_MASK_TGUI;
 207 
 208         if (val)
 209                 reg &= ~DDC_SDA_DRIVE_TGUI; /* disable drive - don't drive hi */
 210         else
 211                 reg |= DDC_SDA_DRIVE_TGUI; /* drive low */
 212 
 213         vga_mm_wcrt(par->io_virt, I2C, reg);
 214 }
 215 
 216 static int tridentfb_ddc_getsda_tgui(void *data)
 217 {
 218         struct tridentfb_par *par = data;
 219 
 220         return !!(vga_mm_rcrt(par->io_virt, I2C) & DDC_SDA_TGUI);
 221 }
 222 
 223 #define DDC_SDA_IN      BIT(0)
 224 #define DDC_SCL_OUT     BIT(1)
 225 #define DDC_SDA_OUT     BIT(3)
 226 #define DDC_SCL_IN      BIT(6)
 227 #define DDC_MASK        (DDC_SCL_OUT | DDC_SDA_OUT)
 228 
 229 static void tridentfb_ddc_setscl(void *data, int val)
 230 {
 231         struct tridentfb_par *par = data;
 232         unsigned char reg;
 233 
 234         reg = vga_mm_rcrt(par->io_virt, I2C) & DDC_MASK;
 235         if (val)
 236                 reg |= DDC_SCL_OUT;
 237         else
 238                 reg &= ~DDC_SCL_OUT;
 239         vga_mm_wcrt(par->io_virt, I2C, reg);
 240 }
 241 
 242 static void tridentfb_ddc_setsda(void *data, int val)
 243 {
 244         struct tridentfb_par *par = data;
 245         unsigned char reg;
 246 
 247         reg = vga_mm_rcrt(par->io_virt, I2C) & DDC_MASK;
 248         if (!val)
 249                 reg |= DDC_SDA_OUT;
 250         else
 251                 reg &= ~DDC_SDA_OUT;
 252         vga_mm_wcrt(par->io_virt, I2C, reg);
 253 }
 254 
 255 static int tridentfb_ddc_getscl(void *data)
 256 {
 257         struct tridentfb_par *par = data;
 258 
 259         return !!(vga_mm_rcrt(par->io_virt, I2C) & DDC_SCL_IN);
 260 }
 261 
 262 static int tridentfb_ddc_getsda(void *data)
 263 {
 264         struct tridentfb_par *par = data;
 265 
 266         return !!(vga_mm_rcrt(par->io_virt, I2C) & DDC_SDA_IN);
 267 }
 268 
 269 static int tridentfb_setup_ddc_bus(struct fb_info *info)
 270 {
 271         struct tridentfb_par *par = info->par;
 272 
 273         strlcpy(par->ddc_adapter.name, info->fix.id,
 274                 sizeof(par->ddc_adapter.name));
 275         par->ddc_adapter.owner          = THIS_MODULE;
 276         par->ddc_adapter.class          = I2C_CLASS_DDC;
 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 
 305 static 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 
 322 static void blade_wait_engine(struct tridentfb_par *par)
 323 {
 324         while (readmmr(par, STATUS) & 0xFA800000)
 325                 cpu_relax();
 326 }
 327 
 328 static 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 
 339 static 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 
 354 static 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 
 379 static 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 
 409 static 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 
 430 static 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 
 442 static 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  */
 477 static 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 
 496 static void image_wait_engine(struct tridentfb_par *par)
 497 {
 498         while (readmmr(par, 0x2164) & 0xF0000000)
 499                 cpu_relax();
 500 }
 501 
 502 static 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 
 516 static 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 
 543 static 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 
 570 static 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 
 581 static 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  */
 616 static 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 
 638 static 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 
 668 static 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 
 682 static 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 
 695 static inline unsigned char read3X4(struct tridentfb_par *par, int reg)
 696 {
 697         return vga_mm_rcrt(par->io_virt, reg);
 698 }
 699 
 700 static 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 
 706 static inline unsigned char read3CE(struct tridentfb_par *par,
 707                                     unsigned char reg)
 708 {
 709         return vga_mm_rgfx(par->io_virt, reg);
 710 }
 711 
 712 static 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 
 719 static 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 
 725 static 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 
 740 static 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 
 755 static 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 */
 762 static 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 */
 792 static 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 */
 806 static 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 */
 817 static 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 */
 824 static 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 */
 836 static 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*/
 881 static 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  */
 899 static 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 */
 909 static 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 */
 990 static 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         /* check color depth */
1000         if (bpp == 24)
1001                 bpp = var->bits_per_pixel = 32;
1002         if (bpp != 8 && bpp != 16 && bpp != 32)
1003                 return -EINVAL;
1004         if (par->chip_id == TGUI9440 && bpp == 32)
1005                 return -EINVAL;
1006         /* check whether resolution fits on panel and in memory */
1007         if (par->flatpanel && nativex && var->xres > nativex)
1008                 return -EINVAL;
1009         /* various resolution checks */
1010         var->xres = (var->xres + 7) & ~0x7;
1011         if (var->xres > var->xres_virtual)
1012                 var->xres_virtual = var->xres;
1013         if (var->yres > var->yres_virtual)
1014                 var->yres_virtual = var->yres;
1015         if (var->xres_virtual > 4095 || var->yres > 2048)
1016                 return -EINVAL;
1017         /* prevent from position overflow for acceleration */
1018         if (var->yres_virtual > 0xffff)
1019                 return -EINVAL;
1020         line_length = var->xres_virtual * bpp / 8;
1021 
1022         if (!is3Dchip(par->chip_id) &&
1023             !(info->flags & FBINFO_HWACCEL_DISABLED)) {
1024                 /* acceleration requires line length to be power of 2 */
1025                 if (line_length <= 512)
1026                         var->xres_virtual = 512 * 8 / bpp;
1027                 else if (line_length <= 1024)
1028                         var->xres_virtual = 1024 * 8 / bpp;
1029                 else if (line_length <= 2048)
1030                         var->xres_virtual = 2048 * 8 / bpp;
1031                 else if (line_length <= 4096)
1032                         var->xres_virtual = 4096 * 8 / bpp;
1033                 else if (line_length <= 8192)
1034                         var->xres_virtual = 8192 * 8 / bpp;
1035                 else
1036                         return -EINVAL;
1037 
1038                 line_length = var->xres_virtual * bpp / 8;
1039         }
1040 
1041         /* datasheet specifies how to set panning only up to 4 MB */
1042         if (line_length * (var->yres_virtual - var->yres) > (4 << 20))
1043                 var->yres_virtual = ((4 << 20) / line_length) + var->yres;
1044 
1045         if (line_length * var->yres_virtual > info->fix.smem_len)
1046                 return -EINVAL;
1047 
1048         switch (bpp) {
1049         case 8:
1050                 var->red.offset = 0;
1051                 var->red.length = 8;
1052                 var->green = var->red;
1053                 var->blue = var->red;
1054                 break;
1055         case 16:
1056                 var->red.offset = 11;
1057                 var->green.offset = 5;
1058                 var->blue.offset = 0;
1059                 var->red.length = 5;
1060                 var->green.length = 6;
1061                 var->blue.length = 5;
1062                 break;
1063         case 32:
1064                 var->red.offset = 16;
1065                 var->green.offset = 8;
1066                 var->blue.offset = 0;
1067                 var->red.length = 8;
1068                 var->green.length = 8;
1069                 var->blue.length = 8;
1070                 break;
1071         default:
1072                 return -EINVAL;
1073         }
1074 
1075         if (is_xp(par->chip_id))
1076                 ramdac = 350000;
1077 
1078         switch (par->chip_id) {
1079         case TGUI9440:
1080                 ramdac = (bpp >= 16) ? 45000 : 90000;
1081                 break;
1082         case CYBER9320:
1083         case TGUI9660:
1084                 ramdac = 135000;
1085                 break;
1086         case PROVIDIA9685:
1087         case CYBER9388:
1088         case CYBER9382:
1089         case CYBER9385:
1090                 ramdac = 170000;
1091                 break;
1092         }
1093 
1094         /* The clock is doubled for 32 bpp */
1095         if (bpp == 32)
1096                 ramdac /= 2;
1097 
1098         if (PICOS2KHZ(var->pixclock) > ramdac)
1099                 return -EINVAL;
1100 
1101         debug("exit\n");
1102 
1103         return 0;
1104 
1105 }
1106 
1107 /* Pan the display */
1108 static int tridentfb_pan_display(struct fb_var_screeninfo *var,
1109                                  struct fb_info *info)
1110 {
1111         struct tridentfb_par *par = info->par;
1112         unsigned int offset;
1113 
1114         debug("enter\n");
1115         offset = (var->xoffset + (var->yoffset * info->var.xres_virtual))
1116                 * info->var.bits_per_pixel / 32;
1117         set_screen_start(par, offset);
1118         debug("exit\n");
1119         return 0;
1120 }
1121 
1122 static inline void shadowmode_on(struct tridentfb_par *par)
1123 {
1124         write3CE(par, CyberControl, read3CE(par, CyberControl) | 0x81);
1125 }
1126 
1127 static inline void shadowmode_off(struct tridentfb_par *par)
1128 {
1129         write3CE(par, CyberControl, read3CE(par, CyberControl) & 0x7E);
1130 }
1131 
1132 /* Set the hardware to the requested video mode */
1133 static int tridentfb_set_par(struct fb_info *info)
1134 {
1135         struct tridentfb_par *par = info->par;
1136         u32 htotal, hdispend, hsyncstart, hsyncend, hblankstart, hblankend;
1137         u32 vtotal, vdispend, vsyncstart, vsyncend, vblankstart, vblankend;
1138         struct fb_var_screeninfo *var = &info->var;
1139         int bpp = var->bits_per_pixel;
1140         unsigned char tmp;
1141         unsigned long vclk;
1142 
1143         debug("enter\n");
1144         hdispend = var->xres / 8 - 1;
1145         hsyncstart = (var->xres + var->right_margin) / 8;
1146         hsyncend = (var->xres + var->right_margin + var->hsync_len) / 8;
1147         htotal = (var->xres + var->left_margin + var->right_margin +
1148                   var->hsync_len) / 8 - 5;
1149         hblankstart = hdispend + 1;
1150         hblankend = htotal + 3;
1151 
1152         vdispend = var->yres - 1;
1153         vsyncstart = var->yres + var->lower_margin;
1154         vsyncend = vsyncstart + var->vsync_len;
1155         vtotal = var->upper_margin + vsyncend - 2;
1156         vblankstart = vdispend + 1;
1157         vblankend = vtotal;
1158 
1159         if (info->var.vmode & FB_VMODE_INTERLACED) {
1160                 vtotal /= 2;
1161                 vdispend /= 2;
1162                 vsyncstart /= 2;
1163                 vsyncend /= 2;
1164                 vblankstart /= 2;
1165                 vblankend /= 2;
1166         }
1167 
1168         enable_mmio(par);
1169         crtc_unlock(par);
1170         write3CE(par, CyberControl, 8);
1171         tmp = 0xEB;
1172         if (var->sync & FB_SYNC_HOR_HIGH_ACT)
1173                 tmp &= ~0x40;
1174         if (var->sync & FB_SYNC_VERT_HIGH_ACT)
1175                 tmp &= ~0x80;
1176 
1177         if (par->flatpanel && var->xres < nativex) {
1178                 /*
1179                  * on flat panels with native size larger
1180                  * than requested resolution decide whether
1181                  * we stretch or center
1182                  */
1183                 t_outb(par, tmp | 0xC0, VGA_MIS_W);
1184 
1185                 shadowmode_on(par);
1186 
1187                 if (center)
1188                         screen_center(par);
1189                 else if (stretch)
1190                         screen_stretch(par);
1191 
1192         } else {
1193                 t_outb(par, tmp, VGA_MIS_W);
1194                 write3CE(par, CyberControl, 8);
1195         }
1196 
1197         /* vertical timing values */
1198         write3X4(par, VGA_CRTC_V_TOTAL, vtotal & 0xFF);
1199         write3X4(par, VGA_CRTC_V_DISP_END, vdispend & 0xFF);
1200         write3X4(par, VGA_CRTC_V_SYNC_START, vsyncstart & 0xFF);
1201         write3X4(par, VGA_CRTC_V_SYNC_END, (vsyncend & 0x0F));
1202         write3X4(par, VGA_CRTC_V_BLANK_START, vblankstart & 0xFF);
1203         write3X4(par, VGA_CRTC_V_BLANK_END, vblankend & 0xFF);
1204 
1205         /* horizontal timing values */
1206         write3X4(par, VGA_CRTC_H_TOTAL, htotal & 0xFF);
1207         write3X4(par, VGA_CRTC_H_DISP, hdispend & 0xFF);
1208         write3X4(par, VGA_CRTC_H_SYNC_START, hsyncstart & 0xFF);
1209         write3X4(par, VGA_CRTC_H_SYNC_END,
1210                  (hsyncend & 0x1F) | ((hblankend & 0x20) << 2));
1211         write3X4(par, VGA_CRTC_H_BLANK_START, hblankstart & 0xFF);
1212         write3X4(par, VGA_CRTC_H_BLANK_END, hblankend & 0x1F);
1213 
1214         /* higher bits of vertical timing values */
1215         tmp = 0x10;
1216         if (vtotal & 0x100) tmp |= 0x01;
1217         if (vdispend & 0x100) tmp |= 0x02;
1218         if (vsyncstart & 0x100) tmp |= 0x04;
1219         if (vblankstart & 0x100) tmp |= 0x08;
1220 
1221         if (vtotal & 0x200) tmp |= 0x20;
1222         if (vdispend & 0x200) tmp |= 0x40;
1223         if (vsyncstart & 0x200) tmp |= 0x80;
1224         write3X4(par, VGA_CRTC_OVERFLOW, tmp);
1225 
1226         tmp = read3X4(par, CRTHiOrd) & 0x07;
1227         tmp |= 0x08;    /* line compare bit 10 */
1228         if (vtotal & 0x400) tmp |= 0x80;
1229         if (vblankstart & 0x400) tmp |= 0x40;
1230         if (vsyncstart & 0x400) tmp |= 0x20;
1231         if (vdispend & 0x400) tmp |= 0x10;
1232         write3X4(par, CRTHiOrd, tmp);
1233 
1234         tmp = (htotal >> 8) & 0x01;
1235         tmp |= (hdispend >> 7) & 0x02;
1236         tmp |= (hsyncstart >> 5) & 0x08;
1237         tmp |= (hblankstart >> 4) & 0x10;
1238         write3X4(par, HorizOverflow, tmp);
1239 
1240         tmp = 0x40;
1241         if (vblankstart & 0x200) tmp |= 0x20;
1242 //FIXME if (info->var.vmode & FB_VMODE_DOUBLE) tmp |= 0x80;  /* double scan for 200 line modes */
1243         write3X4(par, VGA_CRTC_MAX_SCAN, tmp);
1244 
1245         write3X4(par, VGA_CRTC_LINE_COMPARE, 0xFF);
1246         write3X4(par, VGA_CRTC_PRESET_ROW, 0);
1247         write3X4(par, VGA_CRTC_MODE, 0xC3);
1248 
1249         write3X4(par, LinearAddReg, 0x20);      /* enable linear addressing */
1250 
1251         tmp = (info->var.vmode & FB_VMODE_INTERLACED) ? 0x84 : 0x80;
1252         /* enable access extended memory */
1253         write3X4(par, CRTCModuleTest, tmp);
1254         tmp = read3CE(par, MiscIntContReg) & ~0x4;
1255         if (info->var.vmode & FB_VMODE_INTERLACED)
1256                 tmp |= 0x4;
1257         write3CE(par, MiscIntContReg, tmp);
1258 
1259         /* enable GE for text acceleration */
1260         write3X4(par, GraphEngReg, 0x80);
1261 
1262         switch (bpp) {
1263         case 8:
1264                 tmp = 0x00;
1265                 break;
1266         case 16:
1267                 tmp = 0x05;
1268                 break;
1269         case 24:
1270                 tmp = 0x29;
1271                 break;
1272         case 32:
1273                 tmp = 0x09;
1274                 break;
1275         }
1276 
1277         write3X4(par, PixelBusReg, tmp);
1278 
1279         tmp = read3X4(par, DRAMControl);
1280         if (!is_oldprotect(par->chip_id))
1281                 tmp |= 0x10;
1282         if (iscyber(par->chip_id))
1283                 tmp |= 0x20;
1284         write3X4(par, DRAMControl, tmp);        /* both IO, linear enable */
1285 
1286         write3X4(par, InterfaceSel, read3X4(par, InterfaceSel) | 0x40);
1287         if (!is_xp(par->chip_id))
1288                 write3X4(par, Performance, read3X4(par, Performance) | 0x10);
1289         /* MMIO & PCI read and write burst enable */
1290         if (par->chip_id != TGUI9440 && par->chip_id != IMAGE975)
1291                 write3X4(par, PCIReg, read3X4(par, PCIReg) | 0x06);
1292 
1293         vga_mm_wseq(par->io_virt, 0, 3);
1294         vga_mm_wseq(par->io_virt, 1, 1); /* set char clock 8 dots wide */
1295         /* enable 4 maps because needed in chain4 mode */
1296         vga_mm_wseq(par->io_virt, 2, 0x0F);
1297         vga_mm_wseq(par->io_virt, 3, 0);
1298         vga_mm_wseq(par->io_virt, 4, 0x0E); /* memory mode enable bitmaps ?? */
1299 
1300         /* convert from picoseconds to kHz */
1301         vclk = PICOS2KHZ(info->var.pixclock);
1302 
1303         /* divide clock by 2 if 32bpp chain4 mode display and CPU path */
1304         tmp = read3CE(par, MiscExtFunc) & 0xF0;
1305         if (bpp == 32 || (par->chip_id == TGUI9440 && bpp == 16)) {
1306                 tmp |= 8;
1307                 vclk *= 2;
1308         }
1309         set_vclk(par, vclk);
1310         write3CE(par, MiscExtFunc, tmp | 0x12);
1311         write3CE(par, 0x5, 0x40);       /* no CGA compat, allow 256 col */
1312         write3CE(par, 0x6, 0x05);       /* graphics mode */
1313         write3CE(par, 0x7, 0x0F);       /* planes? */
1314 
1315         /* graphics mode and support 256 color modes */
1316         writeAttr(par, 0x10, 0x41);
1317         writeAttr(par, 0x12, 0x0F);     /* planes */
1318         writeAttr(par, 0x13, 0);        /* horizontal pel panning */
1319 
1320         /* colors */
1321         for (tmp = 0; tmp < 0x10; tmp++)
1322                 writeAttr(par, tmp, tmp);
1323         fb_readb(par->io_virt + VGA_IS1_RC);    /* flip-flop to index */
1324         t_outb(par, 0x20, VGA_ATT_W);           /* enable attr */
1325 
1326         switch (bpp) {
1327         case 8:
1328                 tmp = 0;
1329                 break;
1330         case 16:
1331                 tmp = 0x30;
1332                 break;
1333         case 24:
1334         case 32:
1335                 tmp = 0xD0;
1336                 break;
1337         }
1338 
1339         t_inb(par, VGA_PEL_IW);
1340         t_inb(par, VGA_PEL_MSK);
1341         t_inb(par, VGA_PEL_MSK);
1342         t_inb(par, VGA_PEL_MSK);
1343         t_inb(par, VGA_PEL_MSK);
1344         t_outb(par, tmp, VGA_PEL_MSK);
1345         t_inb(par, VGA_PEL_IW);
1346 
1347         if (par->flatpanel)
1348                 set_number_of_lines(par, info->var.yres);
1349         info->fix.line_length = info->var.xres_virtual * bpp / 8;
1350         set_lwidth(par, info->fix.line_length / 8);
1351 
1352         if (!(info->flags & FBINFO_HWACCEL_DISABLED))
1353                 par->init_accel(par, info->var.xres_virtual, bpp);
1354 
1355         info->fix.visual = (bpp == 8) ? FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_TRUECOLOR;
1356         info->cmap.len = (bpp == 8) ? 256 : 16;
1357         debug("exit\n");
1358         return 0;
1359 }
1360 
1361 /* Set one color register */
1362 static int tridentfb_setcolreg(unsigned regno, unsigned red, unsigned green,
1363                                unsigned blue, unsigned transp,
1364                                struct fb_info *info)
1365 {
1366         int bpp = info->var.bits_per_pixel;
1367         struct tridentfb_par *par = info->par;
1368 
1369         if (regno >= info->cmap.len)
1370                 return 1;
1371 
1372         if (bpp == 8) {
1373                 t_outb(par, 0xFF, VGA_PEL_MSK);
1374                 t_outb(par, regno, VGA_PEL_IW);
1375 
1376                 t_outb(par, red >> 10, VGA_PEL_D);
1377                 t_outb(par, green >> 10, VGA_PEL_D);
1378                 t_outb(par, blue >> 10, VGA_PEL_D);
1379 
1380         } else if (regno < 16) {
1381                 if (bpp == 16) {        /* RGB 565 */
1382                         u32 col;
1383 
1384                         col = (red & 0xF800) | ((green & 0xFC00) >> 5) |
1385                                 ((blue & 0xF800) >> 11);
1386                         col |= col << 16;
1387                         ((u32 *)(info->pseudo_palette))[regno] = col;
1388                 } else if (bpp == 32)           /* ARGB 8888 */
1389                         ((u32 *)info->pseudo_palette)[regno] =
1390                                 ((transp & 0xFF00) << 16)       |
1391                                 ((red & 0xFF00) << 8)           |
1392                                 ((green & 0xFF00))              |
1393                                 ((blue & 0xFF00) >> 8);
1394         }
1395 
1396         return 0;
1397 }
1398 
1399 /* Try blanking the screen. For flat panels it does nothing */
1400 static int tridentfb_blank(int blank_mode, struct fb_info *info)
1401 {
1402         unsigned char PMCont, DPMSCont;
1403         struct tridentfb_par *par = info->par;
1404 
1405         debug("enter\n");
1406         if (par->flatpanel)
1407                 return 0;
1408         t_outb(par, 0x04, 0x83C8); /* Read DPMS Control */
1409         PMCont = t_inb(par, 0x83C6) & 0xFC;
1410         DPMSCont = read3CE(par, PowerStatus) & 0xFC;
1411         switch (blank_mode) {
1412         case FB_BLANK_UNBLANK:
1413                 /* Screen: On, HSync: On, VSync: On */
1414         case FB_BLANK_NORMAL:
1415                 /* Screen: Off, HSync: On, VSync: On */
1416                 PMCont |= 0x03;
1417                 DPMSCont |= 0x00;
1418                 break;
1419         case FB_BLANK_HSYNC_SUSPEND:
1420                 /* Screen: Off, HSync: Off, VSync: On */
1421                 PMCont |= 0x02;
1422                 DPMSCont |= 0x01;
1423                 break;
1424         case FB_BLANK_VSYNC_SUSPEND:
1425                 /* Screen: Off, HSync: On, VSync: Off */
1426                 PMCont |= 0x02;
1427                 DPMSCont |= 0x02;
1428                 break;
1429         case FB_BLANK_POWERDOWN:
1430                 /* Screen: Off, HSync: Off, VSync: Off */
1431                 PMCont |= 0x00;
1432                 DPMSCont |= 0x03;
1433                 break;
1434         }
1435 
1436         write3CE(par, PowerStatus, DPMSCont);
1437         t_outb(par, 4, 0x83C8);
1438         t_outb(par, PMCont, 0x83C6);
1439 
1440         debug("exit\n");
1441 
1442         /* let fbcon do a softblank for us */
1443         return (blank_mode == FB_BLANK_NORMAL) ? 1 : 0;
1444 }
1445 
1446 static struct fb_ops tridentfb_ops = {
1447         .owner = THIS_MODULE,
1448         .fb_setcolreg = tridentfb_setcolreg,
1449         .fb_pan_display = tridentfb_pan_display,
1450         .fb_blank = tridentfb_blank,
1451         .fb_check_var = tridentfb_check_var,
1452         .fb_set_par = tridentfb_set_par,
1453         .fb_fillrect = tridentfb_fillrect,
1454         .fb_copyarea = tridentfb_copyarea,
1455         .fb_imageblit = tridentfb_imageblit,
1456         .fb_sync = tridentfb_sync,
1457 };
1458 
1459 static 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 = pci_enable_device(dev);
1471         if (err)
1472                 return err;
1473 
1474         info = framebuffer_alloc(sizeof(struct tridentfb_par), &dev->dev);
1475         if (!info)
1476                 return -ENOMEM;
1477         default_par = info->par;
1478 
1479         chip_id = id->device;
1480 
1481         /* If PCI id is 0x9660 then further detect chip type */
1482 
1483         if (chip_id == TGUI9660) {
1484                 revision = vga_io_rseq(RevisionID);
1485 
1486                 switch (revision) {
1487                 case 0x21:
1488                         chip_id = PROVIDIA9685;
1489                         break;
1490                 case 0x22:
1491                 case 0x23:
1492                         chip_id = CYBER9397;
1493                         break;
1494                 case 0x2A:
1495                         chip_id = CYBER9397DVD;
1496                         break;
1497                 case 0x30:
1498                 case 0x33:
1499                 case 0x34:
1500                 case 0x35:
1501                 case 0x38:
1502                 case 0x3A:
1503                 case 0xB3:
1504                         chip_id = CYBER9385;
1505                         break;
1506                 case 0x40 ... 0x43:
1507                         chip_id = CYBER9382;
1508                         break;
1509                 case 0x4A:
1510                         chip_id = CYBER9388;
1511                         break;
1512                 default:
1513                         break;
1514                 }
1515         }
1516 
1517         chip3D = is3Dchip(chip_id);
1518 
1519         if (is_xp(chip_id)) {
1520                 default_par->init_accel = xp_init_accel;
1521                 default_par->wait_engine = xp_wait_engine;
1522                 default_par->fill_rect = xp_fill_rect;
1523                 default_par->copy_rect = xp_copy_rect;
1524                 tridentfb_fix.accel = FB_ACCEL_TRIDENT_BLADEXP;
1525         } else if (is_blade(chip_id)) {
1526                 default_par->init_accel = blade_init_accel;
1527                 default_par->wait_engine = blade_wait_engine;
1528                 default_par->fill_rect = blade_fill_rect;
1529                 default_par->copy_rect = blade_copy_rect;
1530                 default_par->image_blit = blade_image_blit;
1531                 tridentfb_fix.accel = FB_ACCEL_TRIDENT_BLADE3D;
1532         } else if (chip3D) {                    /* 3DImage family left */
1533                 default_par->init_accel = image_init_accel;
1534                 default_par->wait_engine = image_wait_engine;
1535                 default_par->fill_rect = image_fill_rect;
1536                 default_par->copy_rect = image_copy_rect;
1537                 tridentfb_fix.accel = FB_ACCEL_TRIDENT_3DIMAGE;
1538         } else {                                /* TGUI 9440/96XX family */
1539                 default_par->init_accel = tgui_init_accel;
1540                 default_par->wait_engine = xp_wait_engine;
1541                 default_par->fill_rect = tgui_fill_rect;
1542                 default_par->copy_rect = tgui_copy_rect;
1543                 tridentfb_fix.accel = FB_ACCEL_TRIDENT_TGUI;
1544         }
1545 
1546         default_par->chip_id = chip_id;
1547 
1548         /* setup MMIO region */
1549         tridentfb_fix.mmio_start = pci_resource_start(dev, 1);
1550         tridentfb_fix.mmio_len = pci_resource_len(dev, 1);
1551 
1552         if (!request_mem_region(tridentfb_fix.mmio_start,
1553                                 tridentfb_fix.mmio_len, "tridentfb")) {
1554                 debug("request_region failed!\n");
1555                 framebuffer_release(info);
1556                 return -1;
1557         }
1558 
1559         default_par->io_virt = ioremap_nocache(tridentfb_fix.mmio_start,
1560                                                tridentfb_fix.mmio_len);
1561 
1562         if (!default_par->io_virt) {
1563                 debug("ioremap failed\n");
1564                 err = -1;
1565                 goto out_unmap1;
1566         }
1567 
1568         enable_mmio(default_par);
1569 
1570         /* setup framebuffer memory */
1571         tridentfb_fix.smem_start = pci_resource_start(dev, 0);
1572         tridentfb_fix.smem_len = get_memsize(default_par);
1573 
1574         if (!request_mem_region(tridentfb_fix.smem_start,
1575                                 tridentfb_fix.smem_len, "tridentfb")) {
1576                 debug("request_mem_region failed!\n");
1577                 disable_mmio(info->par);
1578                 err = -1;
1579                 goto out_unmap1;
1580         }
1581 
1582         info->screen_base = ioremap_nocache(tridentfb_fix.smem_start,
1583                                             tridentfb_fix.smem_len);
1584 
1585         if (!info->screen_base) {
1586                 debug("ioremap failed\n");
1587                 err = -1;
1588                 goto out_unmap2;
1589         }
1590 
1591         default_par->flatpanel = is_flatpanel(default_par);
1592 
1593         if (default_par->flatpanel)
1594                 nativex = get_nativex(default_par);
1595 
1596         info->fix = tridentfb_fix;
1597         info->fbops = &tridentfb_ops;
1598         info->pseudo_palette = default_par->pseudo_pal;
1599 
1600         info->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN;
1601         if (!noaccel && default_par->init_accel) {
1602                 info->flags &= ~FBINFO_HWACCEL_DISABLED;
1603                 info->flags |= FBINFO_HWACCEL_COPYAREA;
1604                 info->flags |= FBINFO_HWACCEL_FILLRECT;
1605         } else
1606                 info->flags |= FBINFO_HWACCEL_DISABLED;
1607 
1608         if (is_blade(chip_id) && chip_id != BLADE3D)
1609                 info->flags |= FBINFO_READS_FAST;
1610 
1611         info->pixmap.addr = kmalloc(4096, GFP_KERNEL);
1612         if (!info->pixmap.addr) {
1613                 err = -ENOMEM;
1614                 goto out_unmap2;
1615         }
1616 
1617         info->pixmap.size = 4096;
1618         info->pixmap.buf_align = 4;
1619         info->pixmap.scan_align = 1;
1620         info->pixmap.access_align = 32;
1621         info->pixmap.flags = FB_PIXMAP_SYSTEM;
1622         info->var.bits_per_pixel = 8;
1623 
1624         if (default_par->image_blit) {
1625                 info->flags |= FBINFO_HWACCEL_IMAGEBLIT;
1626                 info->pixmap.scan_align = 4;
1627         }
1628 
1629         if (noaccel) {
1630                 printk(KERN_DEBUG "disabling acceleration\n");
1631                 info->flags |= FBINFO_HWACCEL_DISABLED;
1632                 info->pixmap.scan_align = 1;
1633         }
1634 
1635         if (tridentfb_setup_ddc_bus(info) == 0) {
1636                 u8 *edid = fb_ddc_read(&default_par->ddc_adapter);
1637 
1638                 default_par->ddc_registered = true;
1639                 if (edid) {
1640                         fb_edid_to_monspecs(edid, &info->monspecs);
1641                         kfree(edid);
1642                         if (!info->monspecs.modedb)
1643                                 dev_err(info->device, "error getting mode database\n");
1644                         else {
1645                                 const struct fb_videomode *m;
1646 
1647                                 fb_videomode_to_modelist(info->monspecs.modedb,
1648                                                  info->monspecs.modedb_len,
1649                                                  &info->modelist);
1650                                 m = fb_find_best_display(&info->monspecs,
1651                                                          &info->modelist);
1652                                 if (m) {
1653                                         fb_videomode_to_var(&info->var, m);
1654                                         /* fill all other info->var's fields */
1655                                         if (tridentfb_check_var(&info->var,
1656                                                                 info) == 0)
1657                                                 found = true;
1658                                 }
1659                         }
1660                 }
1661         }
1662 
1663         if (!mode_option && !found)
1664                 mode_option = "640x480-8@60";
1665 
1666         /* Prepare startup mode */
1667         if (mode_option) {
1668                 err = fb_find_mode(&info->var, info, mode_option,
1669                                    info->monspecs.modedb,
1670                                    info->monspecs.modedb_len,
1671                                    NULL, info->var.bits_per_pixel);
1672                 if (!err || err == 4) {
1673                         err = -EINVAL;
1674                         dev_err(info->device, "mode %s not found\n",
1675                                                                 mode_option);
1676                         fb_destroy_modedb(info->monspecs.modedb);
1677                         info->monspecs.modedb = NULL;
1678                         goto out_unmap2;
1679                 }
1680         }
1681 
1682         fb_destroy_modedb(info->monspecs.modedb);
1683         info->monspecs.modedb = NULL;
1684 
1685         err = fb_alloc_cmap(&info->cmap, 256, 0);
1686         if (err < 0)
1687                 goto out_unmap2;
1688 
1689         info->var.activate |= FB_ACTIVATE_NOW;
1690         info->device = &dev->dev;
1691         if (register_framebuffer(info) < 0) {
1692                 printk(KERN_ERR "tridentfb: could not register framebuffer\n");
1693                 fb_dealloc_cmap(&info->cmap);
1694                 err = -EINVAL;
1695                 goto out_unmap2;
1696         }
1697         output("fb%d: %s frame buffer device %dx%d-%dbpp\n",
1698            info->node, info->fix.id, info->var.xres,
1699            info->var.yres, info->var.bits_per_pixel);
1700 
1701         pci_set_drvdata(dev, info);
1702         return 0;
1703 
1704 out_unmap2:
1705         if (default_par->ddc_registered)
1706                 i2c_del_adapter(&default_par->ddc_adapter);
1707         kfree(info->pixmap.addr);
1708         if (info->screen_base)
1709                 iounmap(info->screen_base);
1710         release_mem_region(tridentfb_fix.smem_start, tridentfb_fix.smem_len);
1711         disable_mmio(info->par);
1712 out_unmap1:
1713         if (default_par->io_virt)
1714                 iounmap(default_par->io_virt);
1715         release_mem_region(tridentfb_fix.mmio_start, tridentfb_fix.mmio_len);
1716         framebuffer_release(info);
1717         return err;
1718 }
1719 
1720 static void trident_pci_remove(struct pci_dev *dev)
1721 {
1722         struct fb_info *info = pci_get_drvdata(dev);
1723         struct tridentfb_par *par = info->par;
1724 
1725         unregister_framebuffer(info);
1726         if (par->ddc_registered)
1727                 i2c_del_adapter(&par->ddc_adapter);
1728         iounmap(par->io_virt);
1729         iounmap(info->screen_base);
1730         release_mem_region(tridentfb_fix.smem_start, tridentfb_fix.smem_len);
1731         release_mem_region(tridentfb_fix.mmio_start, tridentfb_fix.mmio_len);
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 */
1738 static 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 
1763 MODULE_DEVICE_TABLE(pci, trident_devices);
1764 
1765 static 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
1778 static 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 
1811 static int __init tridentfb_init(void)
1812 {
1813 #ifndef MODULE
1814         char *option = NULL;
1815 
1816         if (fb_get_options("tridentfb", &option))
1817                 return -ENODEV;
1818         tridentfb_setup(option);
1819 #endif
1820         return pci_register_driver(&tridentfb_pci_driver);
1821 }
1822 
1823 static void __exit tridentfb_exit(void)
1824 {
1825         pci_unregister_driver(&tridentfb_pci_driver);
1826 }
1827 
1828 module_init(tridentfb_init);
1829 module_exit(tridentfb_exit);
1830 
1831 MODULE_AUTHOR("Jani Monoses <jani@iv.ro>");
1832 MODULE_DESCRIPTION("Framebuffer driver for Trident cards");
1833 MODULE_LICENSE("GPL");
1834 MODULE_ALIAS("cyblafb");
1835 

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