drivers/video/kyro/fbdev.c

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