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