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