drivers/video/fbdev/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
  26 #include <video/kyro.h>
  27
  28 #include "STG4000Reg.h"
  29 #include "STG4000Interface.h"
  30
  31 /*
  32  * PCI Definitions
  33  */
  34 #define PCI_VENDOR_ID_ST        0x104a
  35 #define PCI_DEVICE_ID_STG4000   0x0010
  36
  37 #define KHZ2PICOS(a) (1000000000UL/(a))
  38
  39 /****************************************************************************/
  40 static struct fb_fix_screeninfo kyro_fix = {
  41         .id             = "ST Kyro",
  42         .type           = FB_TYPE_PACKED_PIXELS,
  43         .visual         = FB_VISUAL_TRUECOLOR,
  44         .accel          = FB_ACCEL_NONE,
  45 };
  46
  47 static const struct fb_var_screeninfo kyro_var = {
  48         /* 640x480, 16bpp @ 60 Hz */
  49         .xres           = 640,
  50         .yres           = 480,
  51         .xres_virtual   = 640,
  52         .yres_virtual   = 480,
  53         .bits_per_pixel = 16,
  54         .red            = { 11, 5, 0 },
  55         .green          = {  5, 6, 0 },
  56         .blue           = {  0, 5, 0 },
  57         .activate       = FB_ACTIVATE_NOW,
  58         .height         = -1,
  59         .width          = -1,
  60         .pixclock       = KHZ2PICOS(25175),
  61         .left_margin    = 48,
  62         .right_margin   = 16,
  63         .upper_margin   = 33,
  64         .lower_margin   = 10,
  65         .hsync_len      = 96,
  66         .vsync_len      = 2,
  67         .vmode          = FB_VMODE_NONINTERLACED,
  68 };
  69
  70 typedef struct {
  71         STG4000REG __iomem *pSTGReg;    /* Virtual address of PCI register region */
  72         u32 ulNextFreeVidMem;   /* Offset from start of vid mem to next free region */
  73         u32 ulOverlayOffset;    /* Offset from start of vid mem to overlay */
  74         u32 ulOverlayStride;    /* Interleaved YUV and 422 mode Y stride */
  75         u32 ulOverlayUVStride;  /* 422 mode U & V stride */
  76 } device_info_t;
  77
  78 /* global graphics card info structure (one per card) */
  79 static device_info_t deviceInfo;
  80
  81 static char *mode_option = NULL;
  82 static int nopan = 0;
  83 static int nowrap = 1;
  84 static int nomtrr = 0;
  85
  86 /* PCI driver prototypes */
  87 static int kyrofb_probe(struct pci_dev *pdev, const struct pci_device_id *ent);
  88 static void kyrofb_remove(struct pci_dev *pdev);
  89
  90 static struct fb_videomode kyro_modedb[] = {
  91         {
  92                 /* 640x350 @ 85Hz */
  93                 NULL, 85, 640, 350, KHZ2PICOS(31500),
  94                 96, 32, 60, 32, 64, 3,
  95                 FB_SYNC_HOR_HIGH_ACT, FB_VMODE_NONINTERLACED
  96         }, {
  97                 /* 640x400 @ 85Hz */
  98                 NULL, 85, 640, 400, KHZ2PICOS(31500),
  99                 96, 32, 41, 1, 64, 3,
 100                 FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
 101         }, {
 102                 /* 720x400 @ 85Hz */
 103                 NULL, 85, 720, 400, KHZ2PICOS(35500),
 104                 108, 36, 42, 1, 72, 3,
 105                 FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
 106         }, {
 107                 /* 640x480 @ 60Hz */
 108                 NULL, 60, 640, 480, KHZ2PICOS(25175),
 109                 48, 16, 33, 10, 96, 2,
 110                 0, FB_VMODE_NONINTERLACED
 111         }, {
 112                 /* 640x480 @ 72Hz */
 113                 NULL, 72, 640, 480, KHZ2PICOS(31500),
 114                 128, 24, 28, 9, 40, 3,
 115                 0, FB_VMODE_NONINTERLACED
 116         }, {
 117                 /* 640x480 @ 75Hz */
 118                 NULL, 75, 640, 480, KHZ2PICOS(31500),
 119                 120, 16, 16, 1, 64, 3,
 120                 0, FB_VMODE_NONINTERLACED
 121         }, {
 122                 /* 640x480 @ 85Hz */
 123                 NULL, 85, 640, 480, KHZ2PICOS(36000),
 124                 80, 56, 25, 1, 56, 3,
 125                 0, FB_VMODE_NONINTERLACED
 126         }, {
 127                 /* 800x600 @ 56Hz */
 128                 NULL, 56, 800, 600, KHZ2PICOS(36000),
 129                 128, 24, 22, 1, 72, 2,
 130                 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
 131         }, {
 132                 /* 800x600 @ 60Hz */
 133                 NULL, 60, 800, 600, KHZ2PICOS(40000),
 134                 88, 40, 23, 1, 128, 4,
 135                 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
 136         }, {
 137                 /* 800x600 @ 72Hz */
 138                 NULL, 72, 800, 600, KHZ2PICOS(50000),
 139                 64, 56, 23, 37, 120, 6,
 140                 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
 141         }, {
 142                 /* 800x600 @ 75Hz */
 143                 NULL, 75, 800, 600, KHZ2PICOS(49500),
 144                 160, 16, 21, 1, 80, 3,
 145                 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
 146         }, {
 147                 /* 800x600 @ 85Hz */
 148                 NULL, 85, 800, 600, KHZ2PICOS(56250),
 149                 152, 32, 27, 1, 64, 3,
 150                 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
 151         }, {
 152                 /* 1024x768 @ 60Hz */
 153                 NULL, 60, 1024, 768, KHZ2PICOS(65000),
 154                 160, 24, 29, 3, 136, 6,
 155                 0, FB_VMODE_NONINTERLACED
 156         }, {
 157                 /* 1024x768 @ 70Hz */
 158                 NULL, 70, 1024, 768, KHZ2PICOS(75000),
 159                 144, 24, 29, 3, 136, 6,
 160                 0, FB_VMODE_NONINTERLACED
 161         }, {
 162                 /* 1024x768 @ 75Hz */
 163                 NULL, 75, 1024, 768, KHZ2PICOS(78750),
 164                 176, 16, 28, 1, 96, 3,
 165                 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
 166         }, {
 167                 /* 1024x768 @ 85Hz */
 168                 NULL, 85, 1024, 768, KHZ2PICOS(94500),
 169                 208, 48, 36, 1, 96, 3,
 170                 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
 171         }, {
 172                 /* 1152x864 @ 75Hz */
 173                 NULL, 75, 1152, 864, KHZ2PICOS(108000),
 174                 256, 64, 32, 1, 128, 3,
 175                 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
 176         }, {
 177                 /* 1280x960 @ 60Hz */
 178                 NULL, 60, 1280, 960, KHZ2PICOS(108000),
 179                 312, 96, 36, 1, 112, 3,
 180                 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
 181         }, {
 182                 /* 1280x960 @ 85Hz */
 183                 NULL, 85, 1280, 960, KHZ2PICOS(148500),
 184                 224, 64, 47, 1, 160, 3,
 185                 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
 186         }, {
 187                 /* 1280x1024 @ 60Hz */
 188                 NULL, 60, 1280, 1024, KHZ2PICOS(108000),
 189                 248, 48, 38, 1, 112, 3,
 190                 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
 191         }, {
 192                 /* 1280x1024 @ 75Hz */
 193                 NULL, 75, 1280, 1024, KHZ2PICOS(135000),
 194                 248, 16, 38, 1, 144, 3,
 195                 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
 196         }, {
 197                 /* 1280x1024 @ 85Hz */
 198                 NULL, 85, 1280, 1024, KHZ2PICOS(157500),
 199                 224, 64, 44, 1, 160, 3,
 200                 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
 201         }, {
 202                 /* 1600x1200 @ 60Hz */
 203                 NULL, 60, 1600, 1200, KHZ2PICOS(162000),
 204                 304, 64, 46, 1, 192, 3,
 205                 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
 206         }, {
 207                 /* 1600x1200 @ 65Hz */
 208                 NULL, 65, 1600, 1200, KHZ2PICOS(175500),
 209                 304, 64, 46, 1, 192, 3,
 210                 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
 211         }, {
 212                 /* 1600x1200 @ 70Hz */
 213                 NULL, 70, 1600, 1200, KHZ2PICOS(189000),
 214                 304, 64, 46, 1, 192, 3,
 215                 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
 216         }, {
 217                 /* 1600x1200 @ 75Hz */
 218                 NULL, 75, 1600, 1200, KHZ2PICOS(202500),
 219                 304, 64, 46, 1, 192, 3,
 220                 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
 221         }, {
 222                 /* 1600x1200 @ 85Hz */
 223                 NULL, 85, 1600, 1200, KHZ2PICOS(229500),
 224                 304, 64, 46, 1, 192, 3,
 225                 FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
 226         }, {
 227                 /* 1792x1344 @ 60Hz */
 228                 NULL, 60, 1792, 1344, KHZ2PICOS(204750),
 229                 328, 128, 46, 1, 200, 3,
 230                 FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
 231         }, {
 232                 /* 1792x1344 @ 75Hz */
 233                 NULL, 75, 1792, 1344, KHZ2PICOS(261000),
 234                 352, 96, 69, 1, 216, 3,
 235                 FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
 236         }, {
 237                 /* 1856x1392 @ 60Hz */
 238                 NULL, 60, 1856, 1392, KHZ2PICOS(218250),
 239                 352, 96, 43, 1, 224, 3,
 240                 FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
 241         }, {
 242                 /* 1856x1392 @ 75Hz */
 243                 NULL, 75, 1856, 1392, KHZ2PICOS(288000),
 244                 352, 128, 104, 1, 224, 3,
 245                 FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
 246         }, {
 247                 /* 1920x1440 @ 60Hz */
 248                 NULL, 60, 1920, 1440, KHZ2PICOS(234000),
 249                 344, 128, 56, 1, 208, 3,
 250                 FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
 251         }, {
 252                 /* 1920x1440 @ 75Hz */
 253                 NULL, 75, 1920, 1440, KHZ2PICOS(297000),
 254                 352, 144, 56, 1, 224, 3,
 255                 FB_SYNC_VERT_HIGH_ACT, FB_VMODE_NONINTERLACED
 256         },
 257 };
 258 #define NUM_TOTAL_MODES ARRAY_SIZE(kyro_modedb)
 259
 260 /*
 261  * This needs to be kept ordered corresponding to kyro_modedb.
 262  */
 263 enum {
 264         VMODE_640_350_85,
 265         VMODE_640_400_85,
 266         VMODE_720_400_85,
 267         VMODE_640_480_60,
 268         VMODE_640_480_72,
 269         VMODE_640_480_75,
 270         VMODE_640_480_85,
 271         VMODE_800_600_56,
 272         VMODE_800_600_60,
 273         VMODE_800_600_72,
 274         VMODE_800_600_75,
 275         VMODE_800_600_85,
 276         VMODE_1024_768_60,
 277         VMODE_1024_768_70,
 278         VMODE_1024_768_75,
 279         VMODE_1024_768_85,
 280         VMODE_1152_864_75,
 281         VMODE_1280_960_60,
 282         VMODE_1280_960_85,
 283         VMODE_1280_1024_60,
 284         VMODE_1280_1024_75,
 285         VMODE_1280_1024_85,
 286         VMODE_1600_1200_60,
 287         VMODE_1600_1200_65,
 288         VMODE_1600_1200_70,
 289         VMODE_1600_1200_75,
 290         VMODE_1600_1200_85,
 291         VMODE_1792_1344_60,
 292         VMODE_1792_1344_75,
 293         VMODE_1856_1392_60,
 294         VMODE_1856_1392_75,
 295         VMODE_1920_1440_60,
 296         VMODE_1920_1440_75,
 297 };
 298
 299 /* Accessors */
 300 static int kyro_dev_video_mode_set(struct fb_info *info)
 301 {
 302         struct kyrofb_info *par = info->par;
 303
 304         /* Turn off display */
 305         StopVTG(deviceInfo.pSTGReg);
 306         DisableRamdacOutput(deviceInfo.pSTGReg);
 307
 308         /* Bring us out of VGA and into Hi-Res mode, if not already. */
 309         DisableVGA(deviceInfo.pSTGReg);
 310
 311         if (InitialiseRamdac(deviceInfo.pSTGReg,
 312                              info->var.bits_per_pixel,
 313                              info->var.xres, info->var.yres,
 314                              par->HSP, par->VSP, &par->PIXCLK) < 0)
 315                 return -EINVAL;
 316
 317         SetupVTG(deviceInfo.pSTGReg, par);
 318
 319         ResetOverlayRegisters(deviceInfo.pSTGReg);
 320
 321         /* Turn on display in new mode */
 322         EnableRamdacOutput(deviceInfo.pSTGReg);
 323         StartVTG(deviceInfo.pSTGReg);
 324
 325         deviceInfo.ulNextFreeVidMem = info->var.xres * info->var.yres *
 326                                       info->var.bits_per_pixel;
 327         deviceInfo.ulOverlayOffset = 0;
 328
 329         return 0;
 330 }
 331
 332 static int kyro_dev_overlay_create(u32 ulWidth,
 333                                    u32 ulHeight, int bLinear)
 334 {
 335         u32 offset;
 336         u32 stride, uvStride;
 337
 338         if (deviceInfo.ulOverlayOffset != 0)
 339                 /*
 340                  * Can only create one overlay without resetting the card or
 341                  * changing display mode
 342                  */
 343                 return -EINVAL;
 344
 345         ResetOverlayRegisters(deviceInfo.pSTGReg);
 346
 347         /* Overlays are addressed in multiples of 16bytes or 32bytes, so make
 348          * sure the start offset is on an appropriate boundary.
 349          */
 350         offset = deviceInfo.ulNextFreeVidMem;
 351         if ((offset & 0x1f) != 0) {
 352                 offset = (offset + 32L) & 0xffffffE0L;
 353         }
 354
 355         if (CreateOverlaySurface(deviceInfo.pSTGReg, ulWidth, ulHeight,
 356                                  bLinear, offset, &stride, &uvStride) < 0)
 357                 return -EINVAL;
 358
 359         deviceInfo.ulOverlayOffset = offset;
 360         deviceInfo.ulOverlayStride = stride;
 361         deviceInfo.ulOverlayUVStride = uvStride;
 362         deviceInfo.ulNextFreeVidMem = offset + (ulHeight * stride) + (ulHeight * 2 * uvStride);
 363
 364         SetOverlayBlendMode(deviceInfo.pSTGReg, GLOBAL_ALPHA, 0xf, 0x0);
 365
 366         return 0;
 367 }
 368
 369 static int kyro_dev_overlay_viewport_set(u32 x, u32 y, u32 ulWidth, u32 ulHeight)
 370 {
 371         if (deviceInfo.ulOverlayOffset == 0)
 372                 /* probably haven't called CreateOverlay yet */
 373                 return -EINVAL;
 374
 375         if (ulWidth == 0 || ulWidth == 0xffffffff ||
 376             ulHeight == 0 || ulHeight == 0xffffffff ||
 377             (x < 2 && ulWidth + 2 == 0))
 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->pixclock)
 403                 return -EINVAL;
 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                 } else if (strcmp(this_opt, "nomtrr") == 0) {
 577                         nomtrr = 1;
 578                 } else {
 579                         mode_option = this_opt;
 580                 }
 581         }
 582
 583         return 0;
 584 }
 585 #endif
 586
 587 static int kyrofb_ioctl(struct fb_info *info,
 588                         unsigned int cmd, unsigned long arg)
 589 {
 590         overlay_create ol_create;
 591         overlay_viewport_set ol_viewport_set;
 592         void __user *argp = (void __user *)arg;
 593
 594         switch (cmd) {
 595         case KYRO_IOCTL_OVERLAY_CREATE:
 596                 if (copy_from_user(&ol_create, argp, sizeof(overlay_create)))
 597                         return -EFAULT;
 598
 599                 if (kyro_dev_overlay_create(ol_create.ulWidth,
 600                                             ol_create.ulHeight, 0) < 0) {
 601                         printk(KERN_ERR "Kyro FB: failed to create overlay surface.\n");
 602
 603                         return -EINVAL;
 604                 }
 605                 break;
 606         case KYRO_IOCTL_OVERLAY_VIEWPORT_SET:
 607                 if (copy_from_user(&ol_viewport_set, argp,
 608                                sizeof(overlay_viewport_set)))
 609                         return -EFAULT;
 610
 611                 if (kyro_dev_overlay_viewport_set(ol_viewport_set.xOrgin,
 612                                                   ol_viewport_set.yOrgin,
 613                                                   ol_viewport_set.xSize,
 614                                                   ol_viewport_set.ySize) != 0)
 615                 {
 616                         printk(KERN_ERR "Kyro FB: failed to create overlay viewport.\n");
 617                         return -EINVAL;
 618                 }
 619                 break;
 620         case KYRO_IOCTL_SET_VIDEO_MODE:
 621                 {
 622                         printk(KERN_ERR "Kyro FB: KYRO_IOCTL_SET_VIDEO_MODE is"
 623                                 "obsolete, use the appropriate fb_ioctl()"
 624                                 "command instead.\n");
 625                         return -EINVAL;
 626                 }
 627         case KYRO_IOCTL_UVSTRIDE:
 628                 if (copy_to_user(argp, &deviceInfo.ulOverlayUVStride, sizeof(deviceInfo.ulOverlayUVStride)))
 629                         return -EFAULT;
 630                 break;
 631         case KYRO_IOCTL_STRIDE:
 632                 if (copy_to_user(argp, &deviceInfo.ulOverlayStride, sizeof(deviceInfo.ulOverlayStride)))
 633                         return -EFAULT;
 634                 break;
 635         case KYRO_IOCTL_OVERLAY_OFFSET:
 636                 if (copy_to_user(argp, &deviceInfo.ulOverlayOffset, sizeof(deviceInfo.ulOverlayOffset)))
 637                         return -EFAULT;
 638                 break;
 639         }
 640
 641         return 0;
 642 }
 643
 644 static const struct pci_device_id kyrofb_pci_tbl[] = {
 645         { PCI_VENDOR_ID_ST, PCI_DEVICE_ID_STG4000,
 646           PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0 },
 647         { 0, }
 648 };
 649
 650 MODULE_DEVICE_TABLE(pci, kyrofb_pci_tbl);
 651
 652 static struct pci_driver kyrofb_pci_driver = {
 653         .name           = "kyrofb",
 654         .id_table       = kyrofb_pci_tbl,
 655         .probe          = kyrofb_probe,
 656         .remove         = kyrofb_remove,
 657 };
 658
 659 static struct fb_ops kyrofb_ops = {
 660         .owner          = THIS_MODULE,
 661         .fb_check_var   = kyrofb_check_var,
 662         .fb_set_par     = kyrofb_set_par,
 663         .fb_setcolreg   = kyrofb_setcolreg,
 664         .fb_ioctl       = kyrofb_ioctl,
 665         .fb_fillrect    = cfb_fillrect,
 666         .fb_copyarea    = cfb_copyarea,
 667         .fb_imageblit   = cfb_imageblit,
 668 };
 669
 670 static int kyrofb_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 671 {
 672         struct fb_info *info;
 673         struct kyrofb_info *currentpar;
 674         unsigned long size;
 675         int err;
 676
 677         if ((err = pci_enable_device(pdev))) {
 678                 printk(KERN_WARNING "kyrofb: Can't enable pdev: %d\n", err);
 679                 return err;
 680         }
 681
 682         info = framebuffer_alloc(sizeof(struct kyrofb_info), &pdev->dev);
 683         if (!info)
 684                 return -ENOMEM;
 685
 686         currentpar = info->par;
 687
 688         kyro_fix.smem_start = pci_resource_start(pdev, 0);
 689         kyro_fix.smem_len   = pci_resource_len(pdev, 0);
 690         kyro_fix.mmio_start = pci_resource_start(pdev, 1);
 691         kyro_fix.mmio_len   = pci_resource_len(pdev, 1);
 692
 693         currentpar->regbase = deviceInfo.pSTGReg =
 694                 ioremap_nocache(kyro_fix.mmio_start, kyro_fix.mmio_len);
 695         if (!currentpar->regbase)
 696                 goto out_free_fb;
 697
 698         info->screen_base = pci_ioremap_wc_bar(pdev, 0);
 699         if (!info->screen_base)
 700                 goto out_unmap_regs;
 701
 702         if (!nomtrr)
 703                 currentpar->wc_cookie = arch_phys_wc_add(kyro_fix.smem_start,
 704                                                          kyro_fix.smem_len);
 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(info->screen_base);
 749 out_unmap_regs:
 750         iounmap(currentpar->regbase);
 751 out_free_fb:
 752         framebuffer_release(info);
 753
 754         return -EINVAL;
 755 }
 756
 757 static void kyrofb_remove(struct pci_dev *pdev)
 758 {
 759         struct fb_info *info = pci_get_drvdata(pdev);
 760         struct kyrofb_info *par = info->par;
 761
 762         /* Reset the board */
 763         StopVTG(deviceInfo.pSTGReg);
 764         DisableRamdacOutput(deviceInfo.pSTGReg);
 765
 766         /* Sync up the PLL */
 767         SetCoreClockPLL(deviceInfo.pSTGReg, pdev);
 768
 769         deviceInfo.ulNextFreeVidMem = 0;
 770         deviceInfo.ulOverlayOffset = 0;
 771
 772         iounmap(info->screen_base);
 773         iounmap(par->regbase);
 774
 775         arch_phys_wc_del(par->wc_cookie);
 776
 777         unregister_framebuffer(info);
 778         framebuffer_release(info);
 779 }
 780
 781 static int __init kyrofb_init(void)
 782 {
 783 #ifndef MODULE
 784         char *option = NULL;
 785
 786         if (fb_get_options("kyrofb", &option))
 787                 return -ENODEV;
 788         kyrofb_setup(option);
 789 #endif
 790         return pci_register_driver(&kyrofb_pci_driver);
 791 }
 792
 793 static void __exit kyrofb_exit(void)
 794 {
 795         pci_unregister_driver(&kyrofb_pci_driver);
 796 }
 797
 798 module_init(kyrofb_init);
 799
 800 #ifdef MODULE
 801 module_exit(kyrofb_exit);
 802 #endif
 803
 804 MODULE_AUTHOR("STMicroelectronics; Paul Mundt <lethal@linux-sh.org>");
 805 MODULE_LICENSE("GPL");