git.oblomov.eu Git - linux-2.6/blob - 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/config.h>
  13 #include <linux/module.h>
  14 #include <linux/types.h>
  15 #include <linux/kernel.h>
  16 #include <linux/sched.h>
  17 #include <linux/mm.h>
  18 #include <linux/errno.h>
  19 #include <linux/string.h>
  20 #include <linux/tty.h>
  21 #include <linux/delay.h>
  22 #include <linux/fb.h>
  23 #include <linux/ioctl.h>
  24 #include <linux/init.h>
  25 #include <linux/pci.h>
  26 #include <asm/io.h>
  27 #include <asm/uaccess.h>
  28 #ifdef CONFIG_MTRR
  29 #include <asm/mtrr.h>
  30 #endif
  31
  32 #include <video/kyro.h>
  33
  34 #include "STG4000Reg.h"
  35 #include "STG4000Interface.h"
  36
  37 /*
  38  * PCI Definitions
  39  */
  40 #define PCI_VENDOR_ID_ST        0x104a
  41 #define PCI_DEVICE_ID_STG4000   0x0010
  42
  43 #define KHZ2PICOS(a) (1000000000UL/(a))
  44
  45 /****************************************************************************/
  46 static struct fb_fix_screeninfo kyro_fix __devinitdata = {
  47         .id             = "ST Kyro",
  48         .type           = FB_TYPE_PACKED_PIXELS,
  49         .visual         = FB_VISUAL_TRUECOLOR,
  50         .accel          = FB_ACCEL_NONE,
  51 };
  52
  53 static struct fb_var_screeninfo kyro_var __devinitdata = {
  54         /* 640x480, 16bpp @ 60 Hz */
  55         .xres           = 640,
  56         .yres           = 480,
  57         .xres_virtual   = 640,
  58         .yres_virtual   = 480,
  59         .bits_per_pixel = 16,
  60         .red            = { 11, 5, 0 },
  61         .green          = {  5, 6, 0 },
  62         .blue           = {  0, 5, 0 },
  63         .activate       = FB_ACTIVATE_NOW,
  64         .height         = -1,
  65         .width          = -1,
  66         .pixclock       = KHZ2PICOS(25175),
  67         .left_margin    = 48,
  68         .right_margin   = 16,
  69         .upper_margin   = 33,
  70         .lower_margin   = 10,
  71         .hsync_len      = 96,
  72         .vsync_len      = 2,
  73         .vmode          = FB_VMODE_NONINTERLACED,
  74 };
  75
  76 static struct kyrofb_info *currentpar;
  77
  78 typedef struct {
  79         STG4000REG __iomem *pSTGReg;    /* Virtual address of PCI register region */
  80         u32 ulNextFreeVidMem;   /* Offset from start of vid mem to next free region */
  81         u32 ulOverlayOffset;    /* Offset from start of vid mem to overlay */
  82         u32 ulOverlayStride;    /* Interleaved YUV and 422 mode Y stride */
  83         u32 ulOverlayUVStride;  /* 422 mode U & V stride */
  84 } device_info_t;
  85
  86 /* global graphics card info structure (one per card) */
  87 static device_info_t deviceInfo;
  88
  89 static char *mode_option __devinitdata = NULL;
  90 static int nopan __devinitdata = 0;
  91 static int nowrap __devinitdata = 1;
  92 #ifdef CONFIG_MTRR
  93 static int nomtrr __devinitdata = 0;
  94 #endif
  95
  96 /* PCI driver prototypes */
  97 static int kyrofb_probe(struct pci_dev *pdev, const struct pci_device_id *ent);
  98 static void kyrofb_remove(struct pci_dev *pdev);
  99
 100 static struct fb_videomode kyro_modedb[] __devinitdata = {
 101         {
 102                 /* 640x350 @ 85Hz */
 103                 NULL, 85, 640, 350, KHZ2PICOS(31500),
 104                 96, 32, 60, 32, 64, 3,
 105                 FB_SYNC_HOR_HIGH_ACT, FB_VMODE_NONINTERLACED
 106         }, {
 107                 /* 640x400 @ 85Hz */
 108                 NULL, 85, 640, 400, KHZ2PICOS(31500),
 109                 96, 32, 41, 1, 64, 3,
 110                 FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
 111         }, {
 112                 /* 720x400 @ 85Hz */
 113                 NULL, 85, 720, 400, KHZ2PICOS(35500),
 114                 108, 36, 42, 1, 72, 3,
 115                 FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
 116         }, {
 117                 /* 640x480 @ 60Hz */
 118                 NULL, 60, 640, 480, KHZ2PICOS(25175),
 119                 48, 16, 33, 10, 96, 2,
 120                 0, FB_VMODE_NONINTERLACED
 121         }, {
 122                 /* 640x480 @ 72Hz */
 123                 NULL, 72, 640, 480, KHZ2PICOS(31500),
 124                 128, 24, 28, 9, 40, 3,
 125                 0, FB_VMODE_NONINTERLACED
 126         }, {
 127                 /* 640x480 @ 75Hz */
 128                 NULL, 75, 640, 480, KHZ2PICOS(31500),
 129                 120, 16, 16, 1, 64, 3,
 130                 0, FB_VMODE_NONINTERLACED
 131         }, {
 132                 /* 640x480 @ 85Hz */
 133                 NULL, 85, 640, 480, KHZ2PICOS(36000),
 134                 80, 56, 25, 1, 56, 3,
 135                 0, FB_VMODE_NONINTERLACED
 136         }, {
 137                 /* 800x600 @ 56Hz */
 138                 NULL, 56, 800, 600, KHZ2PICOS(36000),
 139                 128, 24, 22, 1, 72, 2,
 140                 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
 141         }, {
 142                 /* 800x600 @ 60Hz */
 143                 NULL, 60, 800, 600, KHZ2PICOS(40000),
 144                 88, 40, 23, 1, 128, 4,
 145                 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
 146         }, {
 147                 /* 800x600 @ 72Hz */
 148                 NULL, 72, 800, 600, KHZ2PICOS(50000),
 149                 64, 56, 23, 37, 120, 6,
 150                 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
 151         }, {
 152                 /* 800x600 @ 75Hz */
 153                 NULL, 75, 800, 600, KHZ2PICOS(49500),
 154                 160, 16, 21, 1, 80, 3,
 155                 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
 156         }, {
 157                 /* 800x600 @ 85Hz */
 158                 NULL, 85, 800, 600, KHZ2PICOS(56250),
 159                 152, 32, 27, 1, 64, 3,
 160                 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
 161         }, {
 162                 /* 1024x768 @ 60Hz */
 163                 NULL, 60, 1024, 768, KHZ2PICOS(65000),
 164                 160, 24, 29, 3, 136, 6,
 165                 0, FB_VMODE_NONINTERLACED
 166         }, {
 167                 /* 1024x768 @ 70Hz */
 168                 NULL, 70, 1024, 768, KHZ2PICOS(75000),
 169                 144, 24, 29, 3, 136, 6,
 170                 0, FB_VMODE_NONINTERLACED
 171         }, {
 172                 /* 1024x768 @ 75Hz */
 173                 NULL, 75, 1024, 768, KHZ2PICOS(78750),
 174                 176, 16, 28, 1, 96, 3,
 175                 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
 176         }, {
 177                 /* 1024x768 @ 85Hz */
 178                 NULL, 85, 1024, 768, KHZ2PICOS(94500),
 179                 208, 48, 36, 1, 96, 3,
 180                 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
 181         }, {
 182                 /* 1152x864 @ 75Hz */
 183                 NULL, 75, 1152, 864, KHZ2PICOS(108000),
 184                 256, 64, 32, 1, 128, 3,
 185                 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
 186         }, {
 187                 /* 1280x960 @ 60Hz */
 188                 NULL, 60, 1280, 960, KHZ2PICOS(108000),
 189                 312, 96, 36, 1, 112, 3,
 190                 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
 191         }, {
 192                 /* 1280x960 @ 85Hz */
 193                 NULL, 85, 1280, 960, KHZ2PICOS(148500),
 194                 224, 64, 47, 1, 160, 3,
 195                 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
 196         }, {
 197                 /* 1280x1024 @ 60Hz */
 198                 NULL, 60, 1280, 1024, KHZ2PICOS(108000),
 199                 248, 48, 38, 1, 112, 3,
 200                 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
 201         }, {
 202                 /* 1280x1024 @ 75Hz */
 203                 NULL, 75, 1280, 1024, KHZ2PICOS(135000),
 204                 248, 16, 38, 1, 144, 3,
 205                 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
 206         }, {
 207                 /* 1280x1024 @ 85Hz */
 208                 NULL, 85, 1280, 1024, KHZ2PICOS(157500),
 209                 224, 64, 44, 1, 160, 3,
 210                 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
 211         }, {
 212                 /* 1600x1200 @ 60Hz */
 213                 NULL, 60, 1600, 1200, KHZ2PICOS(162000),
 214                 304, 64, 46, 1, 192, 3,
 215                 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
 216         }, {
 217                 /* 1600x1200 @ 65Hz */
 218                 NULL, 65, 1600, 1200, KHZ2PICOS(175500),
 219                 304, 64, 46, 1, 192, 3,
 220                 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
 221         }, {
 222                 /* 1600x1200 @ 70Hz */
 223                 NULL, 70, 1600, 1200, KHZ2PICOS(189000),
 224                 304, 64, 46, 1, 192, 3,
 225                 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
 226         }, {
 227                 /* 1600x1200 @ 75Hz */
 228                 NULL, 75, 1600, 1200, KHZ2PICOS(202500),
 229                 304, 64, 46, 1, 192, 3,
 230                 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
 231         }, {
 232                 /* 1600x1200 @ 85Hz */
 233                 NULL, 85, 1600, 1200, KHZ2PICOS(229500),
 234                 304, 64, 46, 1, 192, 3,
 235                 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
 236         }, {
 237                 /* 1792x1344 @ 60Hz */
 238                 NULL, 60, 1792, 1344, KHZ2PICOS(204750),
 239                 328, 128, 46, 1, 200, 3,
 240                 FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
 241         }, {
 242                 /* 1792x1344 @ 75Hz */
 243                 NULL, 75, 1792, 1344, KHZ2PICOS(261000),
 244                 352, 96, 69, 1, 216, 3,
 245                 FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
 246         }, {
 247                 /* 1856x1392 @ 60Hz */
 248                 NULL, 60, 1856, 1392, KHZ2PICOS(218250),
 249                 352, 96, 43, 1, 224, 3,
 250                 FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
 251         }, {
 252                 /* 1856x1392 @ 75Hz */
 253                 NULL, 75, 1856, 1392, KHZ2PICOS(288000),
 254                 352, 128, 104, 1, 224, 3,
 255                 FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
 256         }, {
 257                 /* 1920x1440 @ 60Hz */
 258                 NULL, 60, 1920, 1440, KHZ2PICOS(234000),
 259                 344, 128, 56, 1, 208, 3,
 260                 FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
 261         }, {
 262                 /* 1920x1440 @ 75Hz */
 263                 NULL, 75, 1920, 1440, KHZ2PICOS(297000),
 264                 352, 144, 56, 1, 224, 3,
 265                 FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
 266         },
 267 };
 268 #define NUM_TOTAL_MODES ARRAY_SIZE(kyro_modedb)
 269
 270 /*
 271  * This needs to be kept ordered corresponding to kyro_modedb.
 272  */
 273 enum {
 274         VMODE_640_350_85,
 275         VMODE_640_400_85,
 276         VMODE_720_400_85,
 277         VMODE_640_480_60,
 278         VMODE_640_480_72,
 279         VMODE_640_480_75,
 280         VMODE_640_480_85,
 281         VMODE_800_600_56,
 282         VMODE_800_600_60,
 283         VMODE_800_600_72,
 284         VMODE_800_600_75,
 285         VMODE_800_600_85,
 286         VMODE_1024_768_60,
 287         VMODE_1024_768_70,
 288         VMODE_1024_768_75,
 289         VMODE_1024_768_85,
 290         VMODE_1152_864_75,
 291         VMODE_1280_960_60,
 292         VMODE_1280_960_85,
 293         VMODE_1280_1024_60,
 294         VMODE_1280_1024_75,
 295         VMODE_1280_1024_85,
 296         VMODE_1600_1200_60,
 297         VMODE_1600_1200_65,
 298         VMODE_1600_1200_70,
 299         VMODE_1600_1200_75,
 300         VMODE_1600_1200_85,
 301         VMODE_1792_1344_60,
 302         VMODE_1792_1344_75,
 303         VMODE_1856_1392_60,
 304         VMODE_1856_1392_75,
 305         VMODE_1920_1440_60,
 306         VMODE_1920_1440_75,
 307 };
 308
 309 /* Accessors */
 310 static int kyro_dev_video_mode_set(struct fb_info *info)
 311 {
 312         struct kyrofb_info *par = (struct kyrofb_info *)info->par;
 313
 314         /* Turn off display */
 315         StopVTG(deviceInfo.pSTGReg);
 316         DisableRamdacOutput(deviceInfo.pSTGReg);
 317
 318         /* Bring us out of VGA and into Hi-Res mode, if not already. */
 319         DisableVGA(deviceInfo.pSTGReg);
 320
 321         if (InitialiseRamdac(deviceInfo.pSTGReg,
 322                              info->var.bits_per_pixel,
 323                              info->var.xres, info->var.yres,
 324                              par->HSP, par->VSP, &par->PIXCLK) < 0)
 325                 return -EINVAL;
 326
 327         SetupVTG(deviceInfo.pSTGReg, par);
 328
 329         ResetOverlayRegisters(deviceInfo.pSTGReg);
 330
 331         /* Turn on display in new mode */
 332         EnableRamdacOutput(deviceInfo.pSTGReg);
 333         StartVTG(deviceInfo.pSTGReg);
 334
 335         deviceInfo.ulNextFreeVidMem = info->var.xres * info->var.yres *
 336                                       info->var.bits_per_pixel;
 337         deviceInfo.ulOverlayOffset = 0;
 338
 339         return 0;
 340 }
 341
 342 static int kyro_dev_overlay_create(u32 ulWidth,
 343                                    u32 ulHeight, int bLinear)
 344 {
 345         u32 offset;
 346         u32 stride, uvStride;
 347
 348         if (deviceInfo.ulOverlayOffset != 0)
 349                 /*
 350                  * Can only create one overlay without resetting the card or
 351                  * changing display mode
 352                  */
 353                 return -EINVAL;
 354
 355         ResetOverlayRegisters(deviceInfo.pSTGReg);
 356
 357         /* Overlays are addressed in multiples of 16bytes or 32bytes, so make
 358          * sure the start offset is on an appropriate boundary.
 359          */
 360         offset = deviceInfo.ulNextFreeVidMem;
 361         if ((offset & 0x1f) != 0) {
 362                 offset = (offset + 32L) & 0xffffffE0L;
 363         }
 364
 365         if (CreateOverlaySurface(deviceInfo.pSTGReg, ulWidth, ulHeight,
 366                                  bLinear, offset, &stride, &uvStride) < 0)
 367                 return -EINVAL;
 368
 369         deviceInfo.ulOverlayOffset = offset;
 370         deviceInfo.ulOverlayStride = stride;
 371         deviceInfo.ulOverlayUVStride = uvStride;
 372         deviceInfo.ulNextFreeVidMem = offset + (ulHeight * stride) + (ulHeight * 2 * uvStride);
 373
 374         SetOverlayBlendMode(deviceInfo.pSTGReg, GLOBAL_ALPHA, 0xf, 0x0);
 375
 376         return 0;
 377 }
 378
 379 static int kyro_dev_overlay_viewport_set(u32 x, u32 y, u32 ulWidth, u32 ulHeight)
 380 {
 381         if (deviceInfo.ulOverlayOffset == 0)
 382                 /* probably haven't called CreateOverlay yet */
 383                 return -EINVAL;
 384
 385         /* Stop Ramdac Output */
 386         DisableRamdacOutput(deviceInfo.pSTGReg);
 387
 388         SetOverlayViewPort(deviceInfo.pSTGReg,
 389                            x, y, x + ulWidth - 1, y + ulHeight - 1);
 390
 391         EnableOverlayPlane(deviceInfo.pSTGReg);
 392         /* Start Ramdac Output */
 393         EnableRamdacOutput(deviceInfo.pSTGReg);
 394
 395         return 0;
 396 }
 397
 398 static inline unsigned long get_line_length(int x, int bpp)
 399 {
 400         return (unsigned long)((((x*bpp)+31)&~31) >> 3);
 401 }
 402
 403 static int kyrofb_check_var(struct fb_var_screeninfo *var, struct fb_info *info)
 404 {
 405         struct kyrofb_info *par = (struct kyrofb_info *)info->par;
 406
 407         if (var->bits_per_pixel != 16 && var->bits_per_pixel != 32) {
 408                 printk(KERN_WARNING "kyrofb: depth not supported: %u\n", var->bits_per_pixel);
 409                 return -EINVAL;
 410         }
 411
 412         switch (var->bits_per_pixel) {
 413         case 16:
 414                 var->red.offset = 11;
 415                 var->red.length = 5;
 416                 var->green.offset = 5;
 417                 var->green.length = 6;
 418                 var->blue.length = 5;
 419                 break;
 420         case 32:
 421                 var->transp.offset = 24;
 422                 var->red.offset = 16;
 423                 var->green.offset = 8;
 424                 var->blue.offset = 0;
 425
 426                 var->red.length = 8;
 427                 var->green.length = 8;
 428                 var->blue.length = 8;
 429                 var->transp.length = 8;
 430                 break;
 431         }
 432
 433         /* Height/Width of picture in mm */
 434         var->height = var->width = -1;
 435
 436         /* Timing information. All values are in picoseconds */
 437
 438         /* par->PIXCLK is in 100Hz units. Convert to picoseconds -
 439          * ensuring we do not exceed 32 bit precision
 440          */
 441         /*
 442          * XXX: Enabling this really screws over the pixclock value when we
 443          * read it back with fbset. As such, leaving this commented out appears
 444          * to do the right thing (at least for now) .. bearing in mind that we
 445          * have infact already done the KHZ2PICOS conversion in both the modedb
 446          * and kyro_var. -- PFM.
 447          */
 448 //      var->pixclock = 1000000000 / (par->PIXCLK / 10);
 449
 450         /* the header file claims we should use picoseconds
 451          * - nobody else does though, the all use pixels and lines
 452          * of h and v sizes. Both options here.
 453          */
 454
 455         /*
 456          * If we're being called by __fb_try_mode(), then we don't want to
 457          * override any of the var settings that we've already parsed
 458          * from our modedb. -- PFM.
 459          */
 460         if ((var->activate & FB_ACTIVATE_MASK) == FB_ACTIVATE_TEST)
 461                 return 0;
 462
 463         var->left_margin = par->HBP;
 464         var->hsync_len = par->HST;
 465         var->right_margin = par->HFP;
 466
 467         var->upper_margin = par->VBP;
 468         var->vsync_len = par->VST;
 469         var->lower_margin = par->VFP;
 470
 471         if (par->HSP == 1)
 472                 var->sync |= FB_SYNC_HOR_HIGH_ACT;
 473         if (par->VSP == 1)
 474                 var->sync |= FB_SYNC_VERT_HIGH_ACT;
 475
 476         return 0;
 477 }
 478
 479 static int kyrofb_set_par(struct fb_info *info)
 480 {
 481         struct kyrofb_info *par = (struct kyrofb_info *)info->par;
 482         unsigned long lineclock;
 483         unsigned long frameclock;
 484
 485         /* Actual resolution */
 486         par->XRES = info->var.xres;
 487         par->YRES = info->var.yres;
 488
 489         /* pixel depth */
 490         par->PIXDEPTH = info->var.bits_per_pixel;
 491
 492         /* Refresh rate */
 493         /* time for a line in ns */
 494         lineclock = (info->var.pixclock * (info->var.xres +
 495                                     info->var.right_margin +
 496                                     info->var.hsync_len +
 497                                     info->var.left_margin)) / 1000;
 498
 499
 500         /* time for a frame in ns (precision in 32bpp) */
 501         frameclock = lineclock * (info->var.yres +
 502                                   info->var.lower_margin +
 503                                   info->var.vsync_len +
 504                                   info->var.upper_margin);
 505
 506         /* Calculate refresh rate and horrizontal clocks */
 507         par->VFREQ = (1000000000 + (frameclock / 2)) / frameclock;
 508         par->HCLK = (1000000000 + (lineclock / 2)) / lineclock;
 509         par->PIXCLK = ((1000000000 + (info->var.pixclock / 2))
 510                                         / info->var.pixclock) * 10;
 511
 512         /* calculate horizontal timings */
 513         par->HFP = info->var.right_margin;
 514         par->HST = info->var.hsync_len;
 515         par->HBP = info->var.left_margin;
 516         par->HTot = par->XRES + par->HBP + par->HST + par->HFP;
 517
 518         /* calculate vertical timings */
 519         par->VFP = info->var.lower_margin;
 520         par->VST = info->var.vsync_len;
 521         par->VBP = info->var.upper_margin;
 522         par->VTot = par->YRES + par->VBP + par->VST + par->VFP;
 523
 524         par->HSP = (info->var.sync & FB_SYNC_HOR_HIGH_ACT) ? 1 : 0;
 525         par->VSP = (info->var.sync & FB_SYNC_VERT_HIGH_ACT) ? 1 : 0;
 526
 527         kyro_dev_video_mode_set(info);
 528
 529         /* length of a line in bytes    */
 530         info->fix.line_length = get_line_length(par->XRES, par->PIXDEPTH);
 531         info->fix.visual = FB_VISUAL_TRUECOLOR;
 532
 533         return 0;
 534 }
 535
 536 static int kyrofb_setcolreg(u_int regno, u_int red, u_int green,
 537                             u_int blue, u_int transp, struct fb_info *info)
 538 {
 539         if (regno > 255)
 540                 return 1;       /* Invalid register */
 541
 542         if (regno < 16) {
 543                 switch (info->var.bits_per_pixel) {
 544                 case 16:
 545                         ((u16*)(info->pseudo_palette))[regno] =
 546                              (red   & 0xf800) |
 547                             ((green & 0xfc00) >> 5) |
 548                             ((blue  & 0xf800) >> 11);
 549                         break;
 550                 case 32:
 551                         red >>= 8; green >>= 8; blue >>= 8; transp >>= 8;
 552                         ((u32*)(info->pseudo_palette))[regno] =
 553                             (transp << 24) | (red << 16) | (green << 8) | blue;
 554                         break;
 555                 }
 556         }
 557
 558         return 0;
 559 }
 560
 561 #ifndef MODULE
 562 static int __init kyrofb_setup(char *options)
 563 {
 564         char *this_opt;
 565
 566         if (!options || !*options)
 567                 return 0;
 568
 569         while ((this_opt = strsep(&options, ","))) {
 570                 if (!*this_opt)
 571                         continue;
 572                 if (strcmp(this_opt, "nopan") == 0) {
 573                         nopan = 1;
 574                 } else if (strcmp(this_opt, "nowrap") == 0) {
 575                         nowrap = 1;
 576 #ifdef CONFIG_MTRR
 577                 } else if (strcmp(this_opt, "nomtrr") == 0) {
 578                         nomtrr = 1;
 579 #endif
 580                 } else {
 581                         mode_option = this_opt;
 582                 }
 583         }
 584
 585         return 0;
 586 }
 587 #endif
 588
 589 static int kyrofb_ioctl(struct inode *inode, struct file *file,
 590                         unsigned int cmd, unsigned long arg,
 591                         struct fb_info *info)
 592 {
 593         overlay_create ol_create;
 594         overlay_viewport_set ol_viewport_set;
 595         void __user *argp = (void __user *)arg;
 596
 597         switch (cmd) {
 598         case KYRO_IOCTL_OVERLAY_CREATE:
 599                 if (copy_from_user(&ol_create, argp, sizeof(overlay_create)))
 600                         return -EFAULT;
 601
 602                 if (kyro_dev_overlay_create(ol_create.ulWidth,
 603                                             ol_create.ulHeight, 0) < 0) {
 604                         printk(KERN_ERR "Kyro FB: failed to create overlay surface.\n");
 605
 606                         return -EINVAL;
 607                 }
 608                 break;
 609         case KYRO_IOCTL_OVERLAY_VIEWPORT_SET:
 610                 if (copy_from_user(&ol_viewport_set, argp,
 611                                sizeof(overlay_viewport_set)))
 612                         return -EFAULT;
 613
 614                 if (kyro_dev_overlay_viewport_set(ol_viewport_set.xOrgin,
 615                                                   ol_viewport_set.yOrgin,
 616                                                   ol_viewport_set.xSize,
 617                                                   ol_viewport_set.ySize) != 0)
 618                 {
 619                         printk(KERN_ERR "Kyro FB: failed to create overlay viewport.\n");
 620                         return -EINVAL;
 621                 }
 622                 break;
 623         case KYRO_IOCTL_SET_VIDEO_MODE:
 624                 {
 625                         printk(KERN_ERR "Kyro FB: KYRO_IOCTL_SET_VIDEO_MODE is"
 626                                 "obsolete, use the appropriate fb_ioctl()"
 627                                 "command instead.\n");
 628                         return -EINVAL;
 629                 }
 630                 break;
 631         case KYRO_IOCTL_UVSTRIDE:
 632                 if (copy_to_user(argp, &deviceInfo.ulOverlayUVStride, sizeof(unsigned long)))
 633                         return -EFAULT;
 634                 break;
 635         case KYRO_IOCTL_STRIDE:
 636                 if (copy_to_user(argp, &deviceInfo.ulOverlayStride, sizeof(unsigned long)))
 637                         return -EFAULT;
 638                 break;
 639         case KYRO_IOCTL_OVERLAY_OFFSET:
 640                 if (copy_to_user(argp, &deviceInfo.ulOverlayOffset, sizeof(unsigned long)))
 641                         return -EFAULT;
 642                 break;
 643         }
 644
 645         return 0;
 646 }
 647
 648 static struct pci_device_id kyrofb_pci_tbl[] = {
 649         { PCI_VENDOR_ID_ST, PCI_DEVICE_ID_STG4000,
 650           PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
 651         { 0, }
 652 };
 653
 654 MODULE_DEVICE_TABLE(pci, kyrofb_pci_tbl);
 655
 656 static struct pci_driver kyrofb_pci_driver = {
 657         .name           = "kyrofb",
 658         .id_table       = kyrofb_pci_tbl,
 659         .probe          = kyrofb_probe,
 660         .remove         = __devexit_p(kyrofb_remove),
 661 };
 662
 663 static struct fb_ops kyrofb_ops = {
 664         .owner          = THIS_MODULE,
 665         .fb_check_var   = kyrofb_check_var,
 666         .fb_set_par     = kyrofb_set_par,
 667         .fb_setcolreg   = kyrofb_setcolreg,
 668         .fb_ioctl       = kyrofb_ioctl,
 669         .fb_fillrect    = cfb_fillrect,
 670         .fb_copyarea    = cfb_copyarea,
 671         .fb_imageblit   = cfb_imageblit,
 672 };
 673
 674 static int __devinit kyrofb_probe(struct pci_dev *pdev,
 675                                   const struct pci_device_id *ent)
 676 {
 677         struct fb_info *info;
 678         unsigned long size;
 679         int err;
 680
 681         if ((err = pci_enable_device(pdev))) {
 682                 printk(KERN_WARNING "kyrofb: Can't enable pdev: %d\n", err);
 683                 return err;
 684         }
 685
 686         size = sizeof(struct fb_info) + sizeof(struct kyrofb_info) + 16 * sizeof(u32);
 687         info = kmalloc(size, GFP_KERNEL);
 688         if (!info)
 689                 return -ENOMEM;
 690
 691         memset(info, 0, size);
 692
 693         currentpar = (struct kyrofb_info *)(info + 1);
 694
 695         kyro_fix.smem_start = pci_resource_start(pdev, 0);
 696         kyro_fix.smem_len   = pci_resource_len(pdev, 0);
 697         kyro_fix.mmio_start = pci_resource_start(pdev, 1);
 698         kyro_fix.mmio_len   = pci_resource_len(pdev, 1);
 699
 700         currentpar->regbase = deviceInfo.pSTGReg =
 701                 ioremap_nocache(kyro_fix.mmio_start, kyro_fix.mmio_len);
 702
 703         info->screen_base = ioremap_nocache(kyro_fix.smem_start,
 704                                             kyro_fix.smem_len);
 705
 706 #ifdef CONFIG_MTRR
 707         if (!nomtrr)
 708                 currentpar->mtrr_handle =
 709                         mtrr_add(kyro_fix.smem_start,
 710                                  kyro_fix.smem_len,
 711                                  MTRR_TYPE_WRCOMB, 1);
 712 #endif
 713
 714         kyro_fix.ypanstep       = nopan ? 0 : 1;
 715         kyro_fix.ywrapstep      = nowrap ? 0 : 1;
 716
 717         info->fbops             = &kyrofb_ops;
 718         info->fix               = kyro_fix;
 719         info->par               = currentpar;
 720         info->pseudo_palette    = (void *)(currentpar + 1);
 721         info->flags             = FBINFO_DEFAULT;
 722
 723         SetCoreClockPLL(deviceInfo.pSTGReg, pdev);
 724
 725         deviceInfo.ulNextFreeVidMem = 0;
 726         deviceInfo.ulOverlayOffset = 0;
 727
 728         /* This should give a reasonable default video mode */
 729         if (!fb_find_mode(&info->var, info, mode_option, kyro_modedb,
 730                           NUM_TOTAL_MODES, &kyro_modedb[VMODE_1024_768_75], 32))
 731                 info->var = kyro_var;
 732
 733         fb_alloc_cmap(&info->cmap, 256, 0);
 734
 735         kyrofb_set_par(info);
 736         kyrofb_check_var(&info->var, info);
 737
 738         size = get_line_length(info->var.xres_virtual,
 739                                info->var.bits_per_pixel);
 740         size *= info->var.yres_virtual;
 741
 742         fb_memset(info->screen_base, 0, size);
 743
 744         info->device = &pdev->dev;
 745         if (register_framebuffer(info) < 0)
 746                 goto out_unmap;
 747
 748         printk("fb%d: %s frame buffer device, at %dx%d@%d using %ldk/%ldk of VRAM\n",
 749                info->node, info->fix.id, info->var.xres,
 750                info->var.yres, info->var.bits_per_pixel, size >> 10,
 751                (unsigned long)info->fix.smem_len >> 10);
 752
 753         pci_set_drvdata(pdev, info);
 754
 755         return 0;
 756
 757 out_unmap:
 758         iounmap(currentpar->regbase);
 759         iounmap(info->screen_base);
 760         kfree(info);
 761
 762         return -EINVAL;
 763 }
 764
 765 static void __devexit kyrofb_remove(struct pci_dev *pdev)
 766 {
 767         struct fb_info *info = pci_get_drvdata(pdev);
 768         struct kyrofb_info *par = (struct kyrofb_info *)info->par;
 769
 770         /* Reset the board */
 771         StopVTG(deviceInfo.pSTGReg);
 772         DisableRamdacOutput(deviceInfo.pSTGReg);
 773
 774         /* Sync up the PLL */
 775         SetCoreClockPLL(deviceInfo.pSTGReg, pdev);
 776
 777         deviceInfo.ulNextFreeVidMem = 0;
 778         deviceInfo.ulOverlayOffset = 0;
 779
 780         iounmap(info->screen_base);
 781         iounmap(par->regbase);
 782
 783 #ifdef CONFIG_MTRR
 784         if (par->mtrr_handle)
 785                 mtrr_del(par->mtrr_handle,
 786                          info->fix.smem_start,
 787                          info->fix.smem_len);
 788 #endif
 789
 790         unregister_framebuffer(info);
 791         pci_set_drvdata(pdev, NULL);
 792         kfree(info);
 793 }
 794
 795 static int __init kyrofb_init(void)
 796 {
 797 #ifndef MODULE
 798         char *option = NULL;
 799
 800         if (fb_get_options("kyrofb", &option))
 801                 return -ENODEV;
 802         kyrofb_setup(option);
 803 #endif
 804         return pci_register_driver(&kyrofb_pci_driver);
 805 }
 806
 807 static void __exit kyrofb_exit(void)
 808 {
 809         pci_unregister_driver(&kyrofb_pci_driver);
 810 }
 811
 812 module_init(kyrofb_init);
 813
 814 #ifdef MODULE
 815 module_exit(kyrofb_exit);
 816 #endif
 817
 818 MODULE_AUTHOR("STMicroelectronics; Paul Mundt <lethal@linux-sh.org>");
 819 MODULE_LICENSE("GPL");