drivers/video/kyro/fbdev.c

   1 /*
   2  *  linux/drivers/video/kyro/fbdev.c
   3  *
   4  *  Copyright (C) 2002 STMicroelectronics
   5  *  Copyright (C) 2003, 2004 Paul Mundt
   6  *
   7  * This file is subject to the terms and conditions of the GNU General Public
   8  * License.  See the file COPYING in the main directory of this archive
   9  * for more details.
  10  */
  11
  12 #include <linux/module.h>
  13 #include <linux/types.h>
  14 #include <linux/kernel.h>
  15 #include <linux/sched.h>
  16 #include <linux/mm.h>
  17 #include <linux/errno.h>
  18 #include <linux/string.h>
  19 #include <linux/tty.h>
  20 #include <linux/delay.h>
  21 #include <linux/fb.h>
  22 #include <linux/ioctl.h>
  23 #include <linux/init.h>
  24 #include <linux/pci.h>
  25 #include <asm/io.h>
  26 #include <asm/uaccess.h>
  27 #ifdef CONFIG_MTRR
  28 #include <asm/mtrr.h>
  29 #endif
  30
  31 #include <video/kyro.h>
  32
  33 #include "STG4000Reg.h"
  34 #include "STG4000Interface.h"
  35
  36 /*
  37  * PCI Definitions
  38  */
  39 #define PCI_VENDOR_ID_ST        0x104a
  40 #define PCI_DEVICE_ID_STG4000   0x0010
  41
  42 #define KHZ2PICOS(a) (1000000000UL/(a))
  43
  44 /****************************************************************************/
  45 static struct fb_fix_screeninfo kyro_fix __devinitdata = {
  46         .id             = "ST Kyro",
  47         .type           = FB_TYPE_PACKED_PIXELS,
  48         .visual         = FB_VISUAL_TRUECOLOR,
  49         .accel          = FB_ACCEL_NONE,
  50 };
  51
  52 static struct fb_var_screeninfo kyro_var __devinitdata = {
  53         /* 640x480, 16bpp @ 60 Hz */
  54         .xres           = 640,
  55         .yres           = 480,
  56         .xres_virtual   = 640,
  57         .yres_virtual   = 480,
  58         .bits_per_pixel = 16,
  59         .red            = { 11, 5, 0 },
  60         .green          = {  5, 6, 0 },
  61         .blue           = {  0, 5, 0 },
  62         .activate       = FB_ACTIVATE_NOW,
  63         .height         = -1,
  64         .width          = -1,
  65         .pixclock       = KHZ2PICOS(25175),
  66         .left_margin    = 48,
  67         .right_margin   = 16,
  68         .upper_margin   = 33,
  69         .lower_margin   = 10,
  70         .hsync_len      = 96,
  71         .vsync_len      = 2,
  72         .vmode          = FB_VMODE_NONINTERLACED,
  73 };
  74
  75 typedef struct {
  76         STG4000REG __iomem *pSTGReg;    /* Virtual address of PCI register region */
  77         u32 ulNextFreeVidMem;   /* Offset from start of vid mem to next free region */
  78         u32 ulOverlayOffset;    /* Offset from start of vid mem to overlay */
  79         u32 ulOverlayStride;    /* Interleaved YUV and 422 mode Y stride */
  80         u32 ulOverlayUVStride;  /* 422 mode U & V stride */
  81 } device_info_t;
  82
  83 /* global graphics card info structure (one per card) */
  84 static device_info_t deviceInfo;
  85
  86 static char *mode_option __devinitdata = NULL;
  87 static int nopan __devinitdata = 0;
  88 static int nowrap __devinitdata = 1;
  89 #ifdef CONFIG_MTRR
  90 static int nomtrr __devinitdata = 0;
  91 #endif
  92
  93 /* PCI driver prototypes */
  94 static int kyrofb_probe(struct pci_dev *pdev, const struct pci_device_id *ent);
  95 static void kyrofb_remove(struct pci_dev *pdev);
  96
  97 static struct fb_videomode kyro_modedb[] __devinitdata = {
  98         {
  99                 /* 640x350 @ 85Hz */
 100                 NULL, 85, 640, 350, KHZ2PICOS(31500),
 101                 96, 32, 60, 32, 64, 3,
 102                 FB_SYNC_HOR_HIGH_ACT, FB_VMODE_NONINTERLACED
 103         }, {
 104                 /* 640x400 @ 85Hz */
 105                 NULL, 85, 640, 400, KHZ2PICOS(31500),
 106                 96, 32, 41, 1, 64, 3,
 107                 FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
 108         }, {
 109                 /* 720x400 @ 85Hz */
 110                 NULL, 85, 720, 400, KHZ2PICOS(35500),
 111                 108, 36, 42, 1, 72, 3,
 112                 FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
 113         }, {
 114                 /* 640x480 @ 60Hz */
 115                 NULL, 60, 640, 480, KHZ2PICOS(25175),
 116                 48, 16, 33, 10, 96, 2,
 117                 0, FB_VMODE_NONINTERLACED
 118         }, {
 119                 /* 640x480 @ 72Hz */
 120                 NULL, 72, 640, 480, KHZ2PICOS(31500),
 121                 128, 24, 28, 9, 40, 3,
 122                 0, FB_VMODE_NONINTERLACED
 123         }, {
 124                 /* 640x480 @ 75Hz */
 125                 NULL, 75, 640, 480, KHZ2PICOS(31500),
 126                 120, 16, 16, 1, 64, 3,
 127                 0, FB_VMODE_NONINTERLACED
 128         }, {
 129                 /* 640x480 @ 85Hz */
 130                 NULL, 85, 640, 480, KHZ2PICOS(36000),
 131                 80, 56, 25, 1, 56, 3,
 132                 0, FB_VMODE_NONINTERLACED
 133         }, {
 134                 /* 800x600 @ 56Hz */
 135                 NULL, 56, 800, 600, KHZ2PICOS(36000),
 136                 128, 24, 22, 1, 72, 2,
 137                 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
 138         }, {
 139                 /* 800x600 @ 60Hz */
 140                 NULL, 60, 800, 600, KHZ2PICOS(40000),
 141                 88, 40, 23, 1, 128, 4,
 142                 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
 143         }, {
 144                 /* 800x600 @ 72Hz */
 145                 NULL, 72, 800, 600, KHZ2PICOS(50000),
 146                 64, 56, 23, 37, 120, 6,
 147                 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
 148         }, {
 149                 /* 800x600 @ 75Hz */
 150                 NULL, 75, 800, 600, KHZ2PICOS(49500),
 151                 160, 16, 21, 1, 80, 3,
 152                 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
 153         }, {
 154                 /* 800x600 @ 85Hz */
 155                 NULL, 85, 800, 600, KHZ2PICOS(56250),
 156                 152, 32, 27, 1, 64, 3,
 157                 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
 158         }, {
 159                 /* 1024x768 @ 60Hz */
 160                 NULL, 60, 1024, 768, KHZ2PICOS(65000),
 161                 160, 24, 29, 3, 136, 6,
 162                 0, FB_VMODE_NONINTERLACED
 163         }, {
 164                 /* 1024x768 @ 70Hz */
 165                 NULL, 70, 1024, 768, KHZ2PICOS(75000),
 166                 144, 24, 29, 3, 136, 6,
 167                 0, FB_VMODE_NONINTERLACED
 168         }, {
 169                 /* 1024x768 @ 75Hz */
 170                 NULL, 75, 1024, 768, KHZ2PICOS(78750),
 171                 176, 16, 28, 1, 96, 3,
 172                 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
 173         }, {
 174                 /* 1024x768 @ 85Hz */
 175                 NULL, 85, 1024, 768, KHZ2PICOS(94500),
 176                 208, 48, 36, 1, 96, 3,
 177                 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
 178         }, {
 179                 /* 1152x864 @ 75Hz */
 180                 NULL, 75, 1152, 864, KHZ2PICOS(108000),
 181                 256, 64, 32, 1, 128, 3,
 182                 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
 183         }, {
 184                 /* 1280x960 @ 60Hz */
 185                 NULL, 60, 1280, 960, KHZ2PICOS(108000),
 186                 312, 96, 36, 1, 112, 3,
 187                 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
 188         }, {
 189                 /* 1280x960 @ 85Hz */
 190                 NULL, 85, 1280, 960, KHZ2PICOS(148500),
 191                 224, 64, 47, 1, 160, 3,
 192                 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
 193         }, {
 194                 /* 1280x1024 @ 60Hz */
 195                 NULL, 60, 1280, 1024, KHZ2PICOS(108000),
 196                 248, 48, 38, 1, 112, 3,
 197                 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
 198         }, {
 199                 /* 1280x1024 @ 75Hz */
 200                 NULL, 75, 1280, 1024, KHZ2PICOS(135000),
 201                 248, 16, 38, 1, 144, 3,
 202                 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
 203         }, {
 204                 /* 1280x1024 @ 85Hz */
 205                 NULL, 85, 1280, 1024, KHZ2PICOS(157500),
 206                 224, 64, 44, 1, 160, 3,
 207                 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
 208         }, {
 209                 /* 1600x1200 @ 60Hz */
 210                 NULL, 60, 1600, 1200, KHZ2PICOS(162000),
 211                 304, 64, 46, 1, 192, 3,
 212                 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
 213         }, {
 214                 /* 1600x1200 @ 65Hz */
 215                 NULL, 65, 1600, 1200, KHZ2PICOS(175500),
 216                 304, 64, 46, 1, 192, 3,
 217                 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
 218         }, {
 219                 /* 1600x1200 @ 70Hz */
 220                 NULL, 70, 1600, 1200, KHZ2PICOS(189000),
 221                 304, 64, 46, 1, 192, 3,
 222                 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
 223         }, {
 224                 /* 1600x1200 @ 75Hz */
 225                 NULL, 75, 1600, 1200, KHZ2PICOS(202500),
 226                 304, 64, 46, 1, 192, 3,
 227                 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
 228         }, {
 229                 /* 1600x1200 @ 85Hz */
 230                 NULL, 85, 1600, 1200, KHZ2PICOS(229500),
 231                 304, 64, 46, 1, 192, 3,
 232                 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
 233         }, {
 234                 /* 1792x1344 @ 60Hz */
 235                 NULL, 60, 1792, 1344, KHZ2PICOS(204750),
 236                 328, 128, 46, 1, 200, 3,
 237                 FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
 238         }, {
 239                 /* 1792x1344 @ 75Hz */
 240                 NULL, 75, 1792, 1344, KHZ2PICOS(261000),
 241                 352, 96, 69, 1, 216, 3,
 242                 FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
 243         }, {
 244                 /* 1856x1392 @ 60Hz */
 245                 NULL, 60, 1856, 1392, KHZ2PICOS(218250),
 246                 352, 96, 43, 1, 224, 3,
 247                 FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
 248         }, {
 249                 /* 1856x1392 @ 75Hz */
 250                 NULL, 75, 1856, 1392, KHZ2PICOS(288000),
 251                 352, 128, 104, 1, 224, 3,
 252                 FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
 253         }, {
 254                 /* 1920x1440 @ 60Hz */
 255                 NULL, 60, 1920, 1440, KHZ2PICOS(234000),
 256                 344, 128, 56, 1, 208, 3,
 257                 FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
 258         }, {
 259                 /* 1920x1440 @ 75Hz */
 260                 NULL, 75, 1920, 1440, KHZ2PICOS(297000),
 261                 352, 144, 56, 1, 224, 3,
 262                 FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
 263         },
 264 };
 265 #define NUM_TOTAL_MODES ARRAY_SIZE(kyro_modedb)
 266
 267 /*
 268  * This needs to be kept ordered corresponding to kyro_modedb.
 269  */
 270 enum {
 271         VMODE_640_350_85,
 272         VMODE_640_400_85,
 273         VMODE_720_400_85,
 274         VMODE_640_480_60,
 275         VMODE_640_480_72,
 276         VMODE_640_480_75,
 277         VMODE_640_480_85,
 278         VMODE_800_600_56,
 279         VMODE_800_600_60,
 280         VMODE_800_600_72,
 281         VMODE_800_600_75,
 282         VMODE_800_600_85,
 283         VMODE_1024_768_60,
 284         VMODE_1024_768_70,
 285         VMODE_1024_768_75,
 286         VMODE_1024_768_85,
 287         VMODE_1152_864_75,
 288         VMODE_1280_960_60,
 289         VMODE_1280_960_85,
 290         VMODE_1280_1024_60,
 291         VMODE_1280_1024_75,
 292         VMODE_1280_1024_85,
 293         VMODE_1600_1200_60,
 294         VMODE_1600_1200_65,
 295         VMODE_1600_1200_70,
 296         VMODE_1600_1200_75,
 297         VMODE_1600_1200_85,
 298         VMODE_1792_1344_60,
 299         VMODE_1792_1344_75,
 300         VMODE_1856_1392_60,
 301         VMODE_1856_1392_75,
 302         VMODE_1920_1440_60,
 303         VMODE_1920_1440_75,
 304 };
 305
 306 /* Accessors */
 307 static int kyro_dev_video_mode_set(struct fb_info *info)
 308 {
 309         struct kyrofb_info *par = info->par;
 310
 311         /* Turn off display */
 312         StopVTG(deviceInfo.pSTGReg);
 313         DisableRamdacOutput(deviceInfo.pSTGReg);
 314
 315         /* Bring us out of VGA and into Hi-Res mode, if not already. */
 316         DisableVGA(deviceInfo.pSTGReg);
 317
 318         if (InitialiseRamdac(deviceInfo.pSTGReg,
 319                              info->var.bits_per_pixel,
 320                              info->var.xres, info->var.yres,
 321                              par->HSP, par->VSP, &par->PIXCLK) < 0)
 322                 return -EINVAL;
 323
 324         SetupVTG(deviceInfo.pSTGReg, par);
 325
 326         ResetOverlayRegisters(deviceInfo.pSTGReg);
 327
 328         /* Turn on display in new mode */
 329         EnableRamdacOutput(deviceInfo.pSTGReg);
 330         StartVTG(deviceInfo.pSTGReg);
 331
 332         deviceInfo.ulNextFreeVidMem = info->var.xres * info->var.yres *
 333                                       info->var.bits_per_pixel;
 334         deviceInfo.ulOverlayOffset = 0;
 335
 336         return 0;
 337 }
 338
 339 static int kyro_dev_overlay_create(u32 ulWidth,
 340                                    u32 ulHeight, int bLinear)
 341 {
 342         u32 offset;
 343         u32 stride, uvStride;
 344
 345         if (deviceInfo.ulOverlayOffset != 0)
 346                 /*
 347                  * Can only create one overlay without resetting the card or
 348                  * changing display mode
 349                  */
 350                 return -EINVAL;
 351
 352         ResetOverlayRegisters(deviceInfo.pSTGReg);
 353
 354         /* Overlays are addressed in multiples of 16bytes or 32bytes, so make
 355          * sure the start offset is on an appropriate boundary.
 356          */
 357         offset = deviceInfo.ulNextFreeVidMem;
 358         if ((offset & 0x1f) != 0) {
 359                 offset = (offset + 32L) & 0xffffffE0L;
 360         }
 361
 362         if (CreateOverlaySurface(deviceInfo.pSTGReg, ulWidth, ulHeight,
 363                                  bLinear, offset, &stride, &uvStride) < 0)
 364                 return -EINVAL;
 365
 366         deviceInfo.ulOverlayOffset = offset;
 367         deviceInfo.ulOverlayStride = stride;
 368         deviceInfo.ulOverlayUVStride = uvStride;
 369         deviceInfo.ulNextFreeVidMem = offset + (ulHeight * stride) + (ulHeight * 2 * uvStride);
 370
 371         SetOverlayBlendMode(deviceInfo.pSTGReg, GLOBAL_ALPHA, 0xf, 0x0);
 372
 373         return 0;
 374 }
 375
 376 static int kyro_dev_overlay_viewport_set(u32 x, u32 y, u32 ulWidth, u32 ulHeight)
 377 {
 378         if (deviceInfo.ulOverlayOffset == 0)
 379                 /* probably haven't called CreateOverlay yet */
 380                 return -EINVAL;
 381
 382         /* Stop Ramdac Output */
 383         DisableRamdacOutput(deviceInfo.pSTGReg);
 384
 385         SetOverlayViewPort(deviceInfo.pSTGReg,
 386                            x, y, x + ulWidth - 1, y + ulHeight - 1);
 387
 388         EnableOverlayPlane(deviceInfo.pSTGReg);
 389         /* Start Ramdac Output */
 390         EnableRamdacOutput(deviceInfo.pSTGReg);
 391
 392         return 0;
 393 }
 394
 395 static inline unsigned long get_line_length(int x, int bpp)
 396 {
 397         return (unsigned long)((((x*bpp)+31)&~31) >> 3);
 398 }
 399
 400 static int kyrofb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
 401 {
 402         struct kyrofb_info *par = info->par;
 403
 404         if (var->bits_per_pixel != 16 && var->bits_per_pixel != 32) {
 405                 printk(KERN_WARNING "kyrofb: depth not supported: %u\n", var->bits_per_pixel);
 406                 return -EINVAL;
 407         }
 408
 409         switch (var->bits_per_pixel) {
 410         case 16:
 411                 var->red.offset = 11;
 412                 var->red.length = 5;
 413                 var->green.offset = 5;
 414                 var->green.length = 6;
 415                 var->blue.length = 5;
 416                 break;
 417         case 32:
 418                 var->transp.offset = 24;
 419                 var->red.offset = 16;
 420                 var->green.offset = 8;
 421                 var->blue.offset = 0;
 422
 423                 var->red.length = 8;
 424                 var->green.length = 8;
 425                 var->blue.length = 8;
 426                 var->transp.length = 8;
 427                 break;
 428         }
 429
 430         /* Height/Width of picture in mm */
 431         var->height = var->width = -1;
 432
 433         /* Timing information. All values are in picoseconds */
 434
 435         /* par->PIXCLK is in 100Hz units. Convert to picoseconds -
 436          * ensuring we do not exceed 32 bit precision
 437          */
 438         /*
 439          * XXX: Enabling this really screws over the pixclock value when we
 440          * read it back with fbset. As such, leaving this commented out appears
 441          * to do the right thing (at least for now) .. bearing in mind that we
 442          * have infact already done the KHZ2PICOS conversion in both the modedb
 443          * and kyro_var. -- PFM.
 444          */
 445 //      var->pixclock = 1000000000 / (par->PIXCLK / 10);
 446
 447         /* the header file claims we should use picoseconds
 448          * - nobody else does though, the all use pixels and lines
 449          * of h and v sizes. Both options here.
 450          */
 451
 452         /*
 453          * If we're being called by __fb_try_mode(), then we don't want to
 454          * override any of the var settings that we've already parsed
 455          * from our modedb. -- PFM.
 456          */
 457         if ((var->activate & FB_ACTIVATE_MASK) == FB_ACTIVATE_TEST)
 458                 return 0;
 459
 460         var->left_margin = par->HBP;
 461         var->hsync_len = par->HST;
 462         var->right_margin = par->HFP;
 463
 464         var->upper_margin = par->VBP;
 465         var->vsync_len = par->VST;
 466         var->lower_margin = par->VFP;
 467
 468         if (par->HSP == 1)
 469                 var->sync |= FB_SYNC_HOR_HIGH_ACT;
 470         if (par->VSP == 1)
 471                 var->sync |= FB_SYNC_VERT_HIGH_ACT;
 472
 473         return 0;
 474 }
 475
 476 static int kyrofb_set_par(struct fb_info *info)
 477 {
 478         struct kyrofb_info *par = info->par;
 479         unsigned long lineclock;
 480         unsigned long frameclock;
 481
 482         /* Actual resolution */
 483         par->XRES = info->var.xres;
 484         par->YRES = info->var.yres;
 485
 486         /* pixel depth */
 487         par->PIXDEPTH = info->var.bits_per_pixel;
 488
 489         /* Refresh rate */
 490         /* time for a line in ns */
 491         lineclock = (info->var.pixclock * (info->var.xres +
 492                                     info->var.right_margin +
 493                                     info->var.hsync_len +
 494                                     info->var.left_margin)) / 1000;
 495
 496
 497         /* time for a frame in ns (precision in 32bpp) */
 498         frameclock = lineclock * (info->var.yres +
 499                                   info->var.lower_margin +
 500                                   info->var.vsync_len +
 501                                   info->var.upper_margin);
 502
 503         /* Calculate refresh rate and horrizontal clocks */
 504         par->VFREQ = (1000000000 + (frameclock / 2)) / frameclock;
 505         par->HCLK = (1000000000 + (lineclock / 2)) / lineclock;
 506         par->PIXCLK = ((1000000000 + (info->var.pixclock / 2))
 507                                         / info->var.pixclock) * 10;
 508
 509         /* calculate horizontal timings */
 510         par->HFP = info->var.right_margin;
 511         par->HST = info->var.hsync_len;
 512         par->HBP = info->var.left_margin;
 513         par->HTot = par->XRES + par->HBP + par->HST + par->HFP;
 514
 515         /* calculate vertical timings */
 516         par->VFP = info->var.lower_margin;
 517         par->VST = info->var.vsync_len;
 518         par->VBP = info->var.upper_margin;
 519         par->VTot = par->YRES + par->VBP + par->VST + par->VFP;
 520
 521         par->HSP = (info->var.sync & FB_SYNC_HOR_HIGH_ACT) ? 1 : 0;
 522         par->VSP = (info->var.sync & FB_SYNC_VERT_HIGH_ACT) ? 1 : 0;
 523
 524         kyro_dev_video_mode_set(info);
 525
 526         /* length of a line in bytes    */
 527         info->fix.line_length = get_line_length(par->XRES, par->PIXDEPTH);
 528         info->fix.visual = FB_VISUAL_TRUECOLOR;
 529
 530         return 0;
 531 }
 532
 533 static int kyrofb_setcolreg(u_int regno, u_int red, u_int green,
 534                             u_int blue, u_int transp, struct fb_info *info)
 535 {
 536         struct kyrofb_info *par = info->par;
 537
 538         if (regno > 255)
 539                 return 1;       /* Invalid register */
 540
 541         if (regno < 16) {
 542                 switch (info->var.bits_per_pixel) {
 543                 case 16:
 544                         par->palette[regno] =
 545                              (red   & 0xf800) |
 546                             ((green & 0xfc00) >> 5) |
 547                             ((blue  & 0xf800) >> 11);
 548                         break;
 549                 case 32:
 550                         red >>= 8; green >>= 8; blue >>= 8; transp >>= 8;
 551                         par->palette[regno] =
 552                             (transp << 24) | (red << 16) | (green << 8) | blue;
 553                         break;
 554                 }
 555         }
 556
 557         return 0;
 558 }
 559
 560 #ifndef MODULE
 561 static int __init kyrofb_setup(char *options)
 562 {
 563         char *this_opt;
 564
 565         if (!options || !*options)
 566                 return 0;
 567
 568         while ((this_opt = strsep(&options, ","))) {
 569                 if (!*this_opt)
 570                         continue;
 571                 if (strcmp(this_opt, "nopan") == 0) {
 572                         nopan = 1;
 573                 } else if (strcmp(this_opt, "nowrap") == 0) {
 574                         nowrap = 1;
 575 #ifdef CONFIG_MTRR
 576                 } else if (strcmp(this_opt, "nomtrr") == 0) {
 577                         nomtrr = 1;
 578 #endif
 579                 } else {
 580                         mode_option = this_opt;
 581                 }
 582         }
 583
 584         return 0;
 585 }
 586 #endif
 587
 588 static int kyrofb_ioctl(struct fb_info *info,
 589                         unsigned int cmd, unsigned long arg)
 590 {
 591         overlay_create ol_create;
 592         overlay_viewport_set ol_viewport_set;
 593         void __user *argp = (void __user *)arg;
 594
 595         switch (cmd) {
 596         case KYRO_IOCTL_OVERLAY_CREATE:
 597                 if (copy_from_user(&ol_create, argp, sizeof(overlay_create)))
 598                         return -EFAULT;
 599
 600                 if (kyro_dev_overlay_create(ol_create.ulWidth,
 601                                             ol_create.ulHeight, 0) < 0) {
 602                         printk(KERN_ERR "Kyro FB: failed to create overlay surface.\n");
 603
 604                         return -EINVAL;
 605                 }
 606                 break;
 607         case KYRO_IOCTL_OVERLAY_VIEWPORT_SET:
 608                 if (copy_from_user(&ol_viewport_set, argp,
 609                                sizeof(overlay_viewport_set)))
 610                         return -EFAULT;
 611
 612                 if (kyro_dev_overlay_viewport_set(ol_viewport_set.xOrgin,
 613                                                   ol_viewport_set.yOrgin,
 614                                                   ol_viewport_set.xSize,
 615                                                   ol_viewport_set.ySize) != 0)
 616                 {
 617                         printk(KERN_ERR "Kyro FB: failed to create overlay viewport.\n");
 618                         return -EINVAL;
 619                 }
 620                 break;
 621         case KYRO_IOCTL_SET_VIDEO_MODE:
 622                 {
 623                         printk(KERN_ERR "Kyro FB: KYRO_IOCTL_SET_VIDEO_MODE is"
 624                                 "obsolete, use the appropriate fb_ioctl()"
 625                                 "command instead.\n");
 626                         return -EINVAL;
 627                 }
 628                 break;
 629         case KYRO_IOCTL_UVSTRIDE:
 630                 if (copy_to_user(argp, &deviceInfo.ulOverlayUVStride, sizeof(unsigned long)))
 631                         return -EFAULT;
 632                 break;
 633         case KYRO_IOCTL_STRIDE:
 634                 if (copy_to_user(argp, &deviceInfo.ulOverlayStride, sizeof(unsigned long)))
 635                         return -EFAULT;
 636                 break;
 637         case KYRO_IOCTL_OVERLAY_OFFSET:
 638                 if (copy_to_user(argp, &deviceInfo.ulOverlayOffset, sizeof(unsigned long)))
 639                         return -EFAULT;
 640                 break;
 641         }
 642
 643         return 0;
 644 }
 645
 646 static struct pci_device_id kyrofb_pci_tbl[] = {
 647         { PCI_VENDOR_ID_ST, PCI_DEVICE_ID_STG4000,
 648           PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
 649         { 0, }
 650 };
 651
 652 MODULE_DEVICE_TABLE(pci, kyrofb_pci_tbl);
 653
 654 static struct pci_driver kyrofb_pci_driver = {
 655         .name           = "kyrofb",
 656         .id_table       = kyrofb_pci_tbl,
 657         .probe          = kyrofb_probe,
 658         .remove         = __devexit_p(kyrofb_remove),
 659 };
 660
 661 static struct fb_ops kyrofb_ops = {
 662         .owner          = THIS_MODULE,
 663         .fb_check_var   = kyrofb_check_var,
 664         .fb_set_par     = kyrofb_set_par,
 665         .fb_setcolreg   = kyrofb_setcolreg,
 666         .fb_ioctl       = kyrofb_ioctl,
 667         .fb_fillrect    = cfb_fillrect,
 668         .fb_copyarea    = cfb_copyarea,
 669         .fb_imageblit   = cfb_imageblit,
 670 };
 671
 672 static int __devinit kyrofb_probe(struct pci_dev *pdev,
 673                                   const struct pci_device_id *ent)
 674 {
 675         struct fb_info *info;
 676         struct kyrofb_info *currentpar;
 677         unsigned long size;
 678         int err;
 679
 680         if ((err = pci_enable_device(pdev))) {
 681                 printk(KERN_WARNING "kyrofb: Can't enable pdev: %d\n", err);
 682                 return err;
 683         }
 684
 685         info = framebuffer_alloc(sizeof(struct kyrofb_info), &pdev->dev);
 686         if (!info)
 687                 return -ENOMEM;
 688
 689         currentpar = info->par;
 690
 691         kyro_fix.smem_start = pci_resource_start(pdev, 0);
 692         kyro_fix.smem_len   = pci_resource_len(pdev, 0);
 693         kyro_fix.mmio_start = pci_resource_start(pdev, 1);
 694         kyro_fix.mmio_len   = pci_resource_len(pdev, 1);
 695
 696         currentpar->regbase = deviceInfo.pSTGReg =
 697                 ioremap_nocache(kyro_fix.mmio_start, kyro_fix.mmio_len);
 698
 699         info->screen_base = ioremap_nocache(kyro_fix.smem_start,
 700                                             kyro_fix.smem_len);
 701
 702 #ifdef CONFIG_MTRR
 703         if (!nomtrr)
 704                 currentpar->mtrr_handle =
 705                         mtrr_add(kyro_fix.smem_start,
 706                                  kyro_fix.smem_len,
 707                                  MTRR_TYPE_WRCOMB, 1);
 708 #endif
 709
 710         kyro_fix.ypanstep       = nopan ? 0 : 1;
 711         kyro_fix.ywrapstep      = nowrap ? 0 : 1;
 712
 713         info->fbops             = &kyrofb_ops;
 714         info->fix               = kyro_fix;
 715         info->pseudo_palette    = currentpar->palette;
 716         info->flags             = FBINFO_DEFAULT;
 717
 718         SetCoreClockPLL(deviceInfo.pSTGReg, pdev);
 719
 720         deviceInfo.ulNextFreeVidMem = 0;
 721         deviceInfo.ulOverlayOffset = 0;
 722
 723         /* This should give a reasonable default video mode */
 724         if (!fb_find_mode(&info->var, info, mode_option, kyro_modedb,
 725                           NUM_TOTAL_MODES, &kyro_modedb[VMODE_1024_768_75], 32))
 726                 info->var = kyro_var;
 727
 728         fb_alloc_cmap(&info->cmap, 256, 0);
 729
 730         kyrofb_set_par(info);
 731         kyrofb_check_var(&info->var, info);
 732
 733         size = get_line_length(info->var.xres_virtual,
 734                                info->var.bits_per_pixel);
 735         size *= info->var.yres_virtual;
 736
 737         fb_memset(info->screen_base, 0, size);
 738
 739         if (register_framebuffer(info) < 0)
 740                 goto out_unmap;
 741
 742         printk("fb%d: %s frame buffer device, at %dx%d@%d using %ldk/%ldk of VRAM\n",
 743                info->node, info->fix.id, info->var.xres,
 744                info->var.yres, info->var.bits_per_pixel, size >> 10,
 745                (unsigned long)info->fix.smem_len >> 10);
 746
 747         pci_set_drvdata(pdev, info);
 748
 749         return 0;
 750
 751 out_unmap:
 752         iounmap(currentpar->regbase);
 753         iounmap(info->screen_base);
 754         framebuffer_release(info);
 755
 756         return -EINVAL;
 757 }
 758
 759 static void __devexit kyrofb_remove(struct pci_dev *pdev)
 760 {
 761         struct fb_info *info = pci_get_drvdata(pdev);
 762         struct kyrofb_info *par = info->par;
 763
 764         /* Reset the board */
 765         StopVTG(deviceInfo.pSTGReg);
 766         DisableRamdacOutput(deviceInfo.pSTGReg);
 767
 768         /* Sync up the PLL */
 769         SetCoreClockPLL(deviceInfo.pSTGReg, pdev);
 770
 771         deviceInfo.ulNextFreeVidMem = 0;
 772         deviceInfo.ulOverlayOffset = 0;
 773
 774         iounmap(info->screen_base);
 775         iounmap(par->regbase);
 776
 777 #ifdef CONFIG_MTRR
 778         if (par->mtrr_handle)
 779                 mtrr_del(par->mtrr_handle,
 780                          info->fix.smem_start,
 781                          info->fix.smem_len);
 782 #endif
 783
 784         unregister_framebuffer(info);
 785         pci_set_drvdata(pdev, NULL);
 786         framebuffer_release(info);
 787 }
 788
 789 static int __init kyrofb_init(void)
 790 {
 791 #ifndef MODULE
 792         char *option = NULL;
 793
 794         if (fb_get_options("kyrofb", &option))
 795                 return -ENODEV;
 796         kyrofb_setup(option);
 797 #endif
 798         return pci_register_driver(&kyrofb_pci_driver);
 799 }
 800
 801 static void __exit kyrofb_exit(void)
 802 {
 803         pci_unregister_driver(&kyrofb_pci_driver);
 804 }
 805
 806 module_init(kyrofb_init);
 807
 808 #ifdef MODULE
 809 module_exit(kyrofb_exit);
 810 #endif
 811
 812 MODULE_AUTHOR("STMicroelectronics; Paul Mundt <lethal@linux-sh.org>");
 813 MODULE_LICENSE("GPL");