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