drivers/staging/sm7xx/smtcfb.c

   1 /*
   2  * Silicon Motion SM7XX frame buffer device
   3  *
   4  * Copyright (C) 2006 Silicon Motion Technology Corp.
   5  * Authors: Ge Wang, gewang@siliconmotion.com
   6  *          Boyod boyod.yang@siliconmotion.com.cn
   7  *
   8  * Copyright (C) 2009 Lemote, Inc.
   9  * Author: Wu Zhangjin, wuzhangjin@gmail.com
  10  *
  11  *  This file is subject to the terms and conditions of the GNU General Public
  12  *  License. See the file COPYING in the main directory of this archive for
  13  *  more details.
  14  *
  15  * Version 0.10.26192.21.01
  16  *      - Add PowerPC/Big endian support
  17  *      - Add 2D support for Lynx
  18  *      - Verified on2.6.19.2  Boyod.yang <boyod.yang@siliconmotion.com.cn>
  19  *
  20  * Version 0.09.2621.00.01
  21  *      - Only support Linux Kernel's version 2.6.21.
  22  *      Boyod.yang  <boyod.yang@siliconmotion.com.cn>
  23  *
  24  * Version 0.09
  25  *      - Only support Linux Kernel's version 2.6.12.
  26  *      Boyod.yang <boyod.yang@siliconmotion.com.cn>
  27  */
  28
  29 #ifndef __KERNEL__
  30 #define __KERNEL__
  31 #endif
  32
  33 #include <linux/io.h>
  34 #include <linux/fb.h>
  35 #include <linux/pci.h>
  36 #include <linux/init.h>
  37 #include <linux/uaccess.h>
  38 #include <linux/console.h>
  39 #include <linux/screen_info.h>
  40
  41 #ifdef CONFIG_PM
  42 #include <linux/pm.h>
  43 #endif
  44
  45 struct screen_info smtc_screen_info;
  46
  47 #include "smtcfb.h"
  48 #include "smtc2d.h"
  49
  50 #ifdef DEBUG
  51 #define smdbg(format, arg...)   printk(KERN_DEBUG format , ## arg)
  52 #else
  53 #define smdbg(format, arg...)
  54 #endif
  55
  56 /*
  57 * Private structure
  58 */
  59 struct smtcfb_info {
  60         /*
  61          * The following is a pointer to be passed into the
  62          * functions below.  The modules outside the main
  63          * voyager.c driver have no knowledge as to what
  64          * is within this structure.
  65          */
  66         struct fb_info fb;
  67         struct display_switch *dispsw;
  68         struct pci_dev *dev;
  69         signed int currcon;
  70
  71         struct {
  72                 u8 red, green, blue;
  73         } palette[NR_RGB];
  74
  75         u_int palette_size;
  76 };
  77
  78 struct par_info {
  79         /*
  80          * Hardware
  81          */
  82         u16 chipID;
  83         unsigned char __iomem *m_pMMIO;
  84         char __iomem *m_pLFB;
  85         char *m_pDPR;
  86         char *m_pVPR;
  87         char *m_pCPR;
  88
  89         u_int width;
  90         u_int height;
  91         u_int hz;
  92         u_long BaseAddressInVRAM;
  93         u8 chipRevID;
  94 };
  95
  96 struct vesa_mode_table  {
  97         char mode_index[6];
  98         u16 lfb_width;
  99         u16 lfb_height;
 100         u16 lfb_depth;
 101 };
 102
 103 static struct vesa_mode_table vesa_mode[] = {
 104         {"0x301", 640,  480,  8},
 105         {"0x303", 800,  600,  8},
 106         {"0x305", 1024, 768,    8},
 107         {"0x307", 1280, 1024, 8},
 108
 109         {"0x311", 640,  480,  16},
 110         {"0x314", 800,  600,  16},
 111         {"0x317", 1024, 768,    16},
 112         {"0x31A", 1280, 1024, 16},
 113
 114         {"0x312", 640,  480,  24},
 115         {"0x315", 800,  600,  24},
 116         {"0x318", 1024, 768,    24},
 117         {"0x31B", 1280, 1024, 24},
 118 };
 119
 120 char __iomem *smtc_RegBaseAddress;      /* Memory Map IO starting address */
 121 char __iomem *smtc_VRAMBaseAddress;     /* video memory starting address */
 122
 123 char *smtc_2DBaseAddress;       /* 2D engine starting address */
 124 char *smtc_2Ddataport;          /* 2D data port offset */
 125 short smtc_2Dacceleration;
 126
 127 static u32 colreg[17];
 128 static struct par_info hw;      /* hardware information */
 129
 130 u16 smtc_ChipIDs[] = {
 131         0x710,
 132         0x712,
 133         0x720
 134 };
 135
 136 #define numSMTCchipIDs (sizeof(smtc_ChipIDs) / sizeof(u16))
 137
 138 void deWaitForNotBusy(void)
 139 {
 140         unsigned long i = 0x1000000;
 141         while (i--) {
 142                 if ((smtc_seqr(0x16) & 0x18) == 0x10)
 143                         break;
 144         }
 145         smtc_de_busy = 0;
 146 }
 147
 148 static void sm712_set_timing(struct smtcfb_info *sfb,
 149                              struct par_info *ppar_info)
 150 {
 151         int i = 0, j = 0;
 152         u32 m_nScreenStride;
 153
 154         smdbg("\nppar_info->width = %d ppar_info->height = %d"
 155                         "sfb->fb.var.bits_per_pixel = %d ppar_info->hz = %d\n",
 156                         ppar_info->width, ppar_info->height,
 157                         sfb->fb.var.bits_per_pixel, ppar_info->hz);
 158
 159         for (j = 0; j < numVGAModes; j++) {
 160                 if (VGAMode[j].mmSizeX == ppar_info->width &&
 161                     VGAMode[j].mmSizeY == ppar_info->height &&
 162                     VGAMode[j].bpp == sfb->fb.var.bits_per_pixel &&
 163                     VGAMode[j].hz == ppar_info->hz) {
 164
 165                         smdbg("\nVGAMode[j].mmSizeX  = %d VGAMode[j].mmSizeY ="
 166                                         "%d VGAMode[j].bpp = %d"
 167                                         "VGAMode[j].hz=%d\n",
 168                                         VGAMode[j].mmSizeX, VGAMode[j].mmSizeY,
 169                                         VGAMode[j].bpp, VGAMode[j].hz);
 170
 171                         smdbg("VGAMode index=%d\n", j);
 172
 173                         smtc_mmiowb(0x0, 0x3c6);
 174
 175                         smtc_seqw(0, 0x1);
 176
 177                         smtc_mmiowb(VGAMode[j].Init_MISC, 0x3c2);
 178
 179                         /* init SEQ register SR00 - SR04 */
 180                         for (i = 0; i < SIZE_SR00_SR04; i++)
 181                                 smtc_seqw(i, VGAMode[j].Init_SR00_SR04[i]);
 182
 183                         /* init SEQ register SR10 - SR24 */
 184                         for (i = 0; i < SIZE_SR10_SR24; i++)
 185                                 smtc_seqw(i + 0x10,
 186                                           VGAMode[j].Init_SR10_SR24[i]);
 187
 188                         /* init SEQ register SR30 - SR75 */
 189                         for (i = 0; i < SIZE_SR30_SR75; i++)
 190                                 if (((i + 0x30) != 0x62) \
 191                                         && ((i + 0x30) != 0x6a) \
 192                                         && ((i + 0x30) != 0x6b))
 193                                         smtc_seqw(i + 0x30,
 194                                                 VGAMode[j].Init_SR30_SR75[i]);
 195
 196                         /* init SEQ register SR80 - SR93 */
 197                         for (i = 0; i < SIZE_SR80_SR93; i++)
 198                                 smtc_seqw(i + 0x80,
 199                                           VGAMode[j].Init_SR80_SR93[i]);
 200
 201                         /* init SEQ register SRA0 - SRAF */
 202                         for (i = 0; i < SIZE_SRA0_SRAF; i++)
 203                                 smtc_seqw(i + 0xa0,
 204                                           VGAMode[j].Init_SRA0_SRAF[i]);
 205
 206                         /* init Graphic register GR00 - GR08 */
 207                         for (i = 0; i < SIZE_GR00_GR08; i++)
 208                                 smtc_grphw(i, VGAMode[j].Init_GR00_GR08[i]);
 209
 210                         /* init Attribute register AR00 - AR14 */
 211                         for (i = 0; i < SIZE_AR00_AR14; i++)
 212                                 smtc_attrw(i, VGAMode[j].Init_AR00_AR14[i]);
 213
 214                         /* init CRTC register CR00 - CR18 */
 215                         for (i = 0; i < SIZE_CR00_CR18; i++)
 216                                 smtc_crtcw(i, VGAMode[j].Init_CR00_CR18[i]);
 217
 218                         /* init CRTC register CR30 - CR4D */
 219                         for (i = 0; i < SIZE_CR30_CR4D; i++)
 220                                 smtc_crtcw(i + 0x30,
 221                                            VGAMode[j].Init_CR30_CR4D[i]);
 222
 223                         /* init CRTC register CR90 - CRA7 */
 224                         for (i = 0; i < SIZE_CR90_CRA7; i++)
 225                                 smtc_crtcw(i + 0x90,
 226                                            VGAMode[j].Init_CR90_CRA7[i]);
 227                 }
 228         }
 229         smtc_mmiowb(0x67, 0x3c2);
 230
 231         /* set VPR registers */
 232         writel(0x0, ppar_info->m_pVPR + 0x0C);
 233         writel(0x0, ppar_info->m_pVPR + 0x40);
 234
 235         /* set data width */
 236         m_nScreenStride =
 237                 (ppar_info->width * sfb->fb.var.bits_per_pixel) / 64;
 238         switch (sfb->fb.var.bits_per_pixel) {
 239         case 8:
 240                 writel(0x0, ppar_info->m_pVPR + 0x0);
 241                 break;
 242         case 16:
 243                 writel(0x00020000, ppar_info->m_pVPR + 0x0);
 244                 break;
 245         case 24:
 246                 writel(0x00040000, ppar_info->m_pVPR + 0x0);
 247                 break;
 248         case 32:
 249                 writel(0x00030000, ppar_info->m_pVPR + 0x0);
 250                 break;
 251         }
 252         writel((u32) (((m_nScreenStride + 2) << 16) | m_nScreenStride),
 253                ppar_info->m_pVPR + 0x10);
 254
 255 }
 256
 257 static void sm712_setpalette(int regno, unsigned red, unsigned green,
 258                              unsigned blue, struct fb_info *info)
 259 {
 260         struct par_info *cur_par = (struct par_info *)info->par;
 261
 262         if (cur_par->BaseAddressInVRAM)
 263                 /*
 264                  * second display palette for dual head. Enable CRT RAM, 6-bit
 265                  * RAM
 266                  */
 267                 smtc_seqw(0x66, (smtc_seqr(0x66) & 0xC3) | 0x20);
 268         else
 269                 /* primary display palette. Enable LCD RAM only, 6-bit RAM */
 270                 smtc_seqw(0x66, (smtc_seqr(0x66) & 0xC3) | 0x10);
 271         smtc_mmiowb(regno, dac_reg);
 272         smtc_mmiowb(red >> 10, dac_val);
 273         smtc_mmiowb(green >> 10, dac_val);
 274         smtc_mmiowb(blue >> 10, dac_val);
 275 }
 276
 277 static void smtc_set_timing(struct smtcfb_info *sfb, struct par_info
 278                 *ppar_info)
 279 {
 280         switch (ppar_info->chipID) {
 281         case 0x710:
 282         case 0x712:
 283         case 0x720:
 284                 sm712_set_timing(sfb, ppar_info);
 285                 break;
 286         }
 287 }
 288
 289 static struct fb_var_screeninfo smtcfb_var = {
 290         .xres = 1024,
 291         .yres = 600,
 292         .xres_virtual = 1024,
 293         .yres_virtual = 600,
 294         .bits_per_pixel = 16,
 295         .red = {16, 8, 0},
 296         .green = {8, 8, 0},
 297         .blue = {0, 8, 0},
 298         .activate = FB_ACTIVATE_NOW,
 299         .height = -1,
 300         .width = -1,
 301         .vmode = FB_VMODE_NONINTERLACED,
 302 };
 303
 304 static struct fb_fix_screeninfo smtcfb_fix = {
 305         .id = "sm712fb",
 306         .type = FB_TYPE_PACKED_PIXELS,
 307         .visual = FB_VISUAL_TRUECOLOR,
 308         .line_length = 800 * 3,
 309         .accel = FB_ACCEL_SMI_LYNX,
 310 };
 311
 312 /* chan_to_field
 313  *
 314  * convert a colour value into a field position
 315  *
 316  * from pxafb.c
 317  */
 318
 319 static inline unsigned int chan_to_field(unsigned int chan,
 320                                          struct fb_bitfield *bf)
 321 {
 322         chan &= 0xffff;
 323         chan >>= 16 - bf->length;
 324         return chan << bf->offset;
 325 }
 326
 327 static int smtcfb_blank(int blank_mode, struct fb_info *info)
 328 {
 329         /* clear DPMS setting */
 330         switch (blank_mode) {
 331         case FB_BLANK_UNBLANK:
 332                 /* Screen On: HSync: On, VSync : On */
 333                 smtc_seqw(0x01, (smtc_seqr(0x01) & (~0x20)));
 334                 smtc_seqw(0x6a, 0x16);
 335                 smtc_seqw(0x6b, 0x02);
 336                 smtc_seqw(0x21, (smtc_seqr(0x21) & 0x77));
 337                 smtc_seqw(0x22, (smtc_seqr(0x22) & (~0x30)));
 338                 smtc_seqw(0x23, (smtc_seqr(0x23) & (~0xc0)));
 339                 smtc_seqw(0x24, (smtc_seqr(0x24) | 0x01));
 340                 smtc_seqw(0x31, (smtc_seqr(0x31) | 0x03));
 341                 break;
 342         case FB_BLANK_NORMAL:
 343                 /* Screen Off: HSync: On, VSync : On   Soft blank */
 344                 smtc_seqw(0x01, (smtc_seqr(0x01) & (~0x20)));
 345                 smtc_seqw(0x6a, 0x16);
 346                 smtc_seqw(0x6b, 0x02);
 347                 smtc_seqw(0x22, (smtc_seqr(0x22) & (~0x30)));
 348                 smtc_seqw(0x23, (smtc_seqr(0x23) & (~0xc0)));
 349                 smtc_seqw(0x24, (smtc_seqr(0x24) | 0x01));
 350                 smtc_seqw(0x31, ((smtc_seqr(0x31) & (~0x07)) | 0x00));
 351                 break;
 352         case FB_BLANK_VSYNC_SUSPEND:
 353                 /* Screen On: HSync: On, VSync : Off */
 354                 smtc_seqw(0x01, (smtc_seqr(0x01) | 0x20));
 355                 smtc_seqw(0x20, (smtc_seqr(0x20) & (~0xB0)));
 356                 smtc_seqw(0x6a, 0x0c);
 357                 smtc_seqw(0x6b, 0x02);
 358                 smtc_seqw(0x21, (smtc_seqr(0x21) | 0x88));
 359                 smtc_seqw(0x22, ((smtc_seqr(0x22) & (~0x30)) | 0x20));
 360                 smtc_seqw(0x23, ((smtc_seqr(0x23) & (~0xc0)) | 0x20));
 361                 smtc_seqw(0x24, (smtc_seqr(0x24) & (~0x01)));
 362                 smtc_seqw(0x31, ((smtc_seqr(0x31) & (~0x07)) | 0x00));
 363                 smtc_seqw(0x34, (smtc_seqr(0x34) | 0x80));
 364                 break;
 365         case FB_BLANK_HSYNC_SUSPEND:
 366                 /* Screen On: HSync: Off, VSync : On */
 367                 smtc_seqw(0x01, (smtc_seqr(0x01) | 0x20));
 368                 smtc_seqw(0x20, (smtc_seqr(0x20) & (~0xB0)));
 369                 smtc_seqw(0x6a, 0x0c);
 370                 smtc_seqw(0x6b, 0x02);
 371                 smtc_seqw(0x21, (smtc_seqr(0x21) | 0x88));
 372                 smtc_seqw(0x22, ((smtc_seqr(0x22) & (~0x30)) | 0x10));
 373                 smtc_seqw(0x23, ((smtc_seqr(0x23) & (~0xc0)) | 0xD8));
 374                 smtc_seqw(0x24, (smtc_seqr(0x24) & (~0x01)));
 375                 smtc_seqw(0x31, ((smtc_seqr(0x31) & (~0x07)) | 0x00));
 376                 smtc_seqw(0x34, (smtc_seqr(0x34) | 0x80));
 377                 break;
 378         case FB_BLANK_POWERDOWN:
 379                 /* Screen On: HSync: Off, VSync : Off */
 380                 smtc_seqw(0x01, (smtc_seqr(0x01) | 0x20));
 381                 smtc_seqw(0x20, (smtc_seqr(0x20) & (~0xB0)));
 382                 smtc_seqw(0x6a, 0x0c);
 383                 smtc_seqw(0x6b, 0x02);
 384                 smtc_seqw(0x21, (smtc_seqr(0x21) | 0x88));
 385                 smtc_seqw(0x22, ((smtc_seqr(0x22) & (~0x30)) | 0x30));
 386                 smtc_seqw(0x23, ((smtc_seqr(0x23) & (~0xc0)) | 0xD8));
 387                 smtc_seqw(0x24, (smtc_seqr(0x24) & (~0x01)));
 388                 smtc_seqw(0x31, ((smtc_seqr(0x31) & (~0x07)) | 0x00));
 389                 smtc_seqw(0x34, (smtc_seqr(0x34) | 0x80));
 390                 break;
 391         default:
 392                 return -EINVAL;
 393         }
 394
 395         return 0;
 396 }
 397
 398 static int smtc_setcolreg(unsigned regno, unsigned red, unsigned green,
 399                           unsigned blue, unsigned trans, struct fb_info *info)
 400 {
 401         struct smtcfb_info *sfb = (struct smtcfb_info *)info;
 402         u32 val;
 403
 404         if (regno > 255)
 405                 return 1;
 406
 407         switch (sfb->fb.fix.visual) {
 408         case FB_VISUAL_DIRECTCOLOR:
 409         case FB_VISUAL_TRUECOLOR:
 410                 /*
 411                  * 16/32 bit true-colour, use pseuo-palette for 16 base color
 412                  */
 413                 if (regno < 16) {
 414                         if (sfb->fb.var.bits_per_pixel == 16) {
 415                                 u32 *pal = sfb->fb.pseudo_palette;
 416                                 val = chan_to_field(red, &sfb->fb.var.red);
 417                                 val |= chan_to_field(green, \
 418                                                 &sfb->fb.var.green);
 419                                 val |= chan_to_field(blue, &sfb->fb.var.blue);
 420 #ifdef __BIG_ENDIAN
 421                                 pal[regno] =
 422                                     ((red & 0xf800) >> 8) |
 423                                     ((green & 0xe000) >> 13) |
 424                                     ((green & 0x1c00) << 3) |
 425                                     ((blue & 0xf800) >> 3);
 426 #else
 427                                 pal[regno] = val;
 428 #endif
 429                         } else {
 430                                 u32 *pal = sfb->fb.pseudo_palette;
 431                                 val = chan_to_field(red, &sfb->fb.var.red);
 432                                 val |= chan_to_field(green, \
 433                                                 &sfb->fb.var.green);
 434                                 val |= chan_to_field(blue, &sfb->fb.var.blue);
 435 #ifdef __BIG_ENDIAN
 436                                 val =
 437                                     (val & 0xff00ff00 >> 8) |
 438                                     (val & 0x00ff00ff << 8);
 439 #endif
 440                                 pal[regno] = val;
 441                         }
 442                 }
 443                 break;
 444
 445         case FB_VISUAL_PSEUDOCOLOR:
 446                 /* color depth 8 bit */
 447                 sm712_setpalette(regno, red, green, blue, info);
 448                 break;
 449
 450         default:
 451                 return 1;       /* unknown type */
 452         }
 453
 454         return 0;
 455
 456 }
 457
 458 #ifdef __BIG_ENDIAN
 459 static ssize_t smtcfb_read(struct fb_info *info, char __user * buf, size_t
 460                                 count, loff_t *ppos)
 461 {
 462         unsigned long p = *ppos;
 463
 464         u32 *buffer, *dst;
 465         u32 __iomem *src;
 466         int c, i, cnt = 0, err = 0;
 467         unsigned long total_size;
 468
 469         if (!info || !info->screen_base)
 470                 return -ENODEV;
 471
 472         if (info->state != FBINFO_STATE_RUNNING)
 473                 return -EPERM;
 474
 475         total_size = info->screen_size;
 476
 477         if (total_size == 0)
 478                 total_size = info->fix.smem_len;
 479
 480         if (p >= total_size)
 481                 return 0;
 482
 483         if (count >= total_size)
 484                 count = total_size;
 485
 486         if (count + p > total_size)
 487                 count = total_size - p;
 488
 489         buffer = kmalloc((count > PAGE_SIZE) ? PAGE_SIZE : count, GFP_KERNEL);
 490         if (!buffer)
 491                 return -ENOMEM;
 492
 493         src = (u32 __iomem *) (info->screen_base + p);
 494
 495         if (info->fbops->fb_sync)
 496                 info->fbops->fb_sync(info);
 497
 498         while (count) {
 499                 c = (count > PAGE_SIZE) ? PAGE_SIZE : count;
 500                 dst = buffer;
 501                 for (i = c >> 2; i--;) {
 502                         *dst = fb_readl(src++);
 503                         *dst =
 504                             (*dst & 0xff00ff00 >> 8) |
 505                             (*dst & 0x00ff00ff << 8);
 506                         dst++;
 507                 }
 508                 if (c & 3) {
 509                         u8 *dst8 = (u8 *) dst;
 510                         u8 __iomem *src8 = (u8 __iomem *) src;
 511
 512                         for (i = c & 3; i--;) {
 513                                 if (i & 1) {
 514                                         *dst8++ = fb_readb(++src8);
 515                                 } else {
 516                                         *dst8++ = fb_readb(--src8);
 517                                         src8 += 2;
 518                                 }
 519                         }
 520                         src = (u32 __iomem *) src8;
 521                 }
 522
 523                 if (copy_to_user(buf, buffer, c)) {
 524                         err = -EFAULT;
 525                         break;
 526                 }
 527                 *ppos += c;
 528                 buf += c;
 529                 cnt += c;
 530                 count -= c;
 531         }
 532
 533         kfree(buffer);
 534
 535         return (err) ? err : cnt;
 536 }
 537
 538 static ssize_t
 539 smtcfb_write(struct fb_info *info, const char __user *buf, size_t count,
 540              loff_t *ppos)
 541 {
 542         unsigned long p = *ppos;
 543
 544         u32 *buffer, *src;
 545         u32 __iomem *dst;
 546         int c, i, cnt = 0, err = 0;
 547         unsigned long total_size;
 548
 549         if (!info || !info->screen_base)
 550                 return -ENODEV;
 551
 552         if (info->state != FBINFO_STATE_RUNNING)
 553                 return -EPERM;
 554
 555         total_size = info->screen_size;
 556
 557         if (total_size == 0)
 558                 total_size = info->fix.smem_len;
 559
 560         if (p > total_size)
 561                 return -EFBIG;
 562
 563         if (count > total_size) {
 564                 err = -EFBIG;
 565                 count = total_size;
 566         }
 567
 568         if (count + p > total_size) {
 569                 if (!err)
 570                         err = -ENOSPC;
 571
 572                 count = total_size - p;
 573         }
 574
 575         buffer = kmalloc((count > PAGE_SIZE) ? PAGE_SIZE : count, GFP_KERNEL);
 576         if (!buffer)
 577                 return -ENOMEM;
 578
 579         dst = (u32 __iomem *) (info->screen_base + p);
 580
 581         if (info->fbops->fb_sync)
 582                 info->fbops->fb_sync(info);
 583
 584         while (count) {
 585                 c = (count > PAGE_SIZE) ? PAGE_SIZE : count;
 586                 src = buffer;
 587
 588                 if (copy_from_user(src, buf, c)) {
 589                         err = -EFAULT;
 590                         break;
 591                 }
 592
 593                 for (i = c >> 2; i--;) {
 594                         fb_writel((*src & 0xff00ff00 >> 8) |
 595                                   (*src & 0x00ff00ff << 8), dst++);
 596                         src++;
 597                 }
 598                 if (c & 3) {
 599                         u8 *src8 = (u8 *) src;
 600                         u8 __iomem *dst8 = (u8 __iomem *) dst;
 601
 602                         for (i = c & 3; i--;) {
 603                                 if (i & 1) {
 604                                         fb_writeb(*src8++, ++dst8);
 605                                 } else {
 606                                         fb_writeb(*src8++, --dst8);
 607                                         dst8 += 2;
 608                                 }
 609                         }
 610                         dst = (u32 __iomem *) dst8;
 611                 }
 612
 613                 *ppos += c;
 614                 buf += c;
 615                 cnt += c;
 616                 count -= c;
 617         }
 618
 619         kfree(buffer);
 620
 621         return (cnt) ? cnt : err;
 622 }
 623 #endif  /* ! __BIG_ENDIAN */
 624
 625 #include "smtc2d.c"
 626
 627 void smtcfb_copyarea(struct fb_info *info, const struct fb_copyarea *area)
 628 {
 629         struct par_info *p = (struct par_info *)info->par;
 630
 631         if (smtc_2Dacceleration) {
 632                 if (!area->width || !area->height)
 633                         return;
 634
 635                 deCopy(p->BaseAddressInVRAM, 0, info->var.bits_per_pixel,
 636                        area->dx, area->dy, area->width, area->height,
 637                        p->BaseAddressInVRAM, 0, area->sx, area->sy, 0, 0xC);
 638
 639         } else
 640                 cfb_copyarea(info, area);
 641 }
 642
 643 void smtcfb_fillrect(struct fb_info *info, const struct fb_fillrect *rect)
 644 {
 645         struct par_info *p = (struct par_info *)info->par;
 646
 647         if (smtc_2Dacceleration) {
 648                 if (!rect->width || !rect->height)
 649                         return;
 650                 if (info->var.bits_per_pixel >= 24)
 651                         deFillRect(p->BaseAddressInVRAM, 0, rect->dx * 3,
 652                                    rect->dy * 3, rect->width * 3, rect->height,
 653                                    rect->color);
 654                 else
 655                         deFillRect(p->BaseAddressInVRAM, 0, rect->dx, rect->dy,
 656                                    rect->width, rect->height, rect->color);
 657         } else
 658                 cfb_fillrect(info, rect);
 659 }
 660
 661 void smtcfb_imageblit(struct fb_info *info, const struct fb_image *image)
 662 {
 663         struct par_info *p = (struct par_info *)info->par;
 664         u32 bg_col = 0, fg_col = 0;
 665
 666         if ((smtc_2Dacceleration) && (image->depth == 1)) {
 667                 if (smtc_de_busy)
 668                         deWaitForNotBusy();
 669
 670                 switch (info->var.bits_per_pixel) {
 671                 case 8:
 672                         bg_col = image->bg_color;
 673                         fg_col = image->fg_color;
 674                         break;
 675                 case 16:
 676                         bg_col =
 677                             ((u32 *) (info->pseudo_palette))[image->bg_color];
 678                         fg_col =
 679                             ((u32 *) (info->pseudo_palette))[image->fg_color];
 680                         break;
 681                 case 32:
 682                         bg_col =
 683                             ((u32 *) (info->pseudo_palette))[image->bg_color];
 684                         fg_col =
 685                             ((u32 *) (info->pseudo_palette))[image->fg_color];
 686                         break;
 687                 }
 688
 689                 deSystemMem2VideoMemMonoBlt(
 690                         image->data,
 691                         image->width / 8,
 692                         0,
 693                         p->BaseAddressInVRAM,
 694                         0,
 695                         0,
 696                         image->dx, image->dy,
 697                         image->width, image->height,
 698                         fg_col, bg_col,
 699                         0x0C);
 700
 701         } else
 702                 cfb_imageblit(info, image);
 703 }
 704
 705 static struct fb_ops smtcfb_ops = {
 706         .owner = THIS_MODULE,
 707         .fb_setcolreg = smtc_setcolreg,
 708         .fb_blank = smtcfb_blank,
 709         .fb_fillrect = smtcfb_fillrect,
 710         .fb_imageblit = smtcfb_imageblit,
 711         .fb_copyarea = smtcfb_copyarea,
 712 #ifdef __BIG_ENDIAN
 713         .fb_read = smtcfb_read,
 714         .fb_write = smtcfb_write,
 715 #endif
 716
 717 };
 718
 719 void smtcfb_setmode(struct smtcfb_info *sfb)
 720 {
 721         switch (sfb->fb.var.bits_per_pixel) {
 722         case 32:
 723                 sfb->fb.fix.visual = FB_VISUAL_TRUECOLOR;
 724                 sfb->fb.fix.line_length = sfb->fb.var.xres * 4;
 725                 sfb->fb.var.red.length = 8;
 726                 sfb->fb.var.green.length = 8;
 727                 sfb->fb.var.blue.length = 8;
 728                 sfb->fb.var.red.offset = 16;
 729                 sfb->fb.var.green.offset = 8;
 730                 sfb->fb.var.blue.offset = 0;
 731
 732                 break;
 733         case 8:
 734                 sfb->fb.fix.visual = FB_VISUAL_PSEUDOCOLOR;
 735                 sfb->fb.fix.line_length = sfb->fb.var.xres;
 736                 sfb->fb.var.red.offset = 5;
 737                 sfb->fb.var.red.length = 3;
 738                 sfb->fb.var.green.offset = 2;
 739                 sfb->fb.var.green.length = 3;
 740                 sfb->fb.var.blue.offset = 0;
 741                 sfb->fb.var.blue.length = 2;
 742                 break;
 743         case 24:
 744                 sfb->fb.fix.visual = FB_VISUAL_TRUECOLOR;
 745                 sfb->fb.fix.line_length = sfb->fb.var.xres * 3;
 746                 sfb->fb.var.red.length = 8;
 747                 sfb->fb.var.green.length = 8;
 748                 sfb->fb.var.blue.length = 8;
 749
 750                 sfb->fb.var.red.offset = 16;
 751                 sfb->fb.var.green.offset = 8;
 752                 sfb->fb.var.blue.offset = 0;
 753
 754                 break;
 755         case 16:
 756         default:
 757                 sfb->fb.fix.visual = FB_VISUAL_TRUECOLOR;
 758                 sfb->fb.fix.line_length = sfb->fb.var.xres * 2;
 759
 760                 sfb->fb.var.red.length = 5;
 761                 sfb->fb.var.green.length = 6;
 762                 sfb->fb.var.blue.length = 5;
 763
 764                 sfb->fb.var.red.offset = 11;
 765                 sfb->fb.var.green.offset = 5;
 766                 sfb->fb.var.blue.offset = 0;
 767
 768                 break;
 769         }
 770
 771         hw.width = sfb->fb.var.xres;
 772         hw.height = sfb->fb.var.yres;
 773         hw.hz = 60;
 774         smtc_set_timing(sfb, &hw);
 775         if (smtc_2Dacceleration) {
 776                 printk("2D acceleration enabled!\n");
 777                 /* Init smtc drawing engine */
 778                 deInit(sfb->fb.var.xres, sfb->fb.var.yres,
 779                                 sfb->fb.var.bits_per_pixel);
 780         }
 781 }
 782
 783 /*
 784  * Alloc struct smtcfb_info and assign the default value
 785  */
 786 static struct smtcfb_info *smtc_alloc_fb_info(struct pci_dev *dev,
 787                                                         char *name)
 788 {
 789         struct smtcfb_info *sfb;
 790
 791         sfb = kmalloc(sizeof(struct smtcfb_info), GFP_KERNEL);
 792
 793         if (!sfb)
 794                 return NULL;
 795
 796         memset(sfb, 0, sizeof(struct smtcfb_info));
 797
 798         sfb->currcon = -1;
 799         sfb->dev = dev;
 800
 801         /*** Init sfb->fb with default value ***/
 802         sfb->fb.flags = FBINFO_FLAG_DEFAULT;
 803         sfb->fb.fbops = &smtcfb_ops;
 804         sfb->fb.var = smtcfb_var;
 805         sfb->fb.fix = smtcfb_fix;
 806
 807         strcpy(sfb->fb.fix.id, name);
 808
 809         sfb->fb.fix.type = FB_TYPE_PACKED_PIXELS;
 810         sfb->fb.fix.type_aux = 0;
 811         sfb->fb.fix.xpanstep = 0;
 812         sfb->fb.fix.ypanstep = 0;
 813         sfb->fb.fix.ywrapstep = 0;
 814         sfb->fb.fix.accel = FB_ACCEL_SMI_LYNX;
 815
 816         sfb->fb.var.nonstd = 0;
 817         sfb->fb.var.activate = FB_ACTIVATE_NOW;
 818         sfb->fb.var.height = -1;
 819         sfb->fb.var.width = -1;
 820         /* text mode acceleration */
 821         sfb->fb.var.accel_flags = FB_ACCELF_TEXT;
 822         sfb->fb.var.vmode = FB_VMODE_NONINTERLACED;
 823         sfb->fb.par = &hw;
 824         sfb->fb.pseudo_palette = colreg;
 825
 826         return sfb;
 827 }
 828
 829 /*
 830  * Unmap in the memory mapped IO registers
 831  */
 832
 833 static void smtc_unmap_mmio(struct smtcfb_info *sfb)
 834 {
 835         if (sfb && smtc_RegBaseAddress)
 836                 smtc_RegBaseAddress = NULL;
 837 }
 838
 839 /*
 840  * Map in the screen memory
 841  */
 842
 843 static int smtc_map_smem(struct smtcfb_info *sfb,
 844                 struct pci_dev *dev, u_long smem_len)
 845 {
 846         if (sfb->fb.var.bits_per_pixel == 32) {
 847 #ifdef __BIG_ENDIAN
 848                 sfb->fb.fix.smem_start = pci_resource_start(dev, 0)
 849                         + 0x800000;
 850 #else
 851                 sfb->fb.fix.smem_start = pci_resource_start(dev, 0);
 852 #endif
 853         } else {
 854                 sfb->fb.fix.smem_start = pci_resource_start(dev, 0);
 855         }
 856
 857         sfb->fb.fix.smem_len = smem_len;
 858
 859         sfb->fb.screen_base = smtc_VRAMBaseAddress;
 860
 861         if (!sfb->fb.screen_base) {
 862                 printk(KERN_INFO "%s: unable to map screen memory\n",
 863                                 sfb->fb.fix.id);
 864                 return -ENOMEM;
 865         }
 866
 867         return 0;
 868 }
 869
 870 /*
 871  * Unmap in the screen memory
 872  *
 873  */
 874 static void smtc_unmap_smem(struct smtcfb_info *sfb)
 875 {
 876         if (sfb && sfb->fb.screen_base) {
 877                 iounmap(sfb->fb.screen_base);
 878                 sfb->fb.screen_base = NULL;
 879         }
 880 }
 881
 882 /*
 883  * We need to wake up the LynxEM+, and make sure its in linear memory mode.
 884  */
 885 static inline void sm7xx_init_hw(void)
 886 {
 887         outb_p(0x18, 0x3c4);
 888         outb_p(0x11, 0x3c5);
 889 }
 890
 891 static void smtc_free_fb_info(struct smtcfb_info *sfb)
 892 {
 893         if (sfb) {
 894                 fb_alloc_cmap(&sfb->fb.cmap, 0, 0);
 895                 kfree(sfb);
 896         }
 897 }
 898
 899 /*
 900  *      sm712vga_setup - process command line options, get vga parameter
 901  *      @options: string of options
 902  *      Returns zero.
 903  *
 904  */
 905 static int __init __maybe_unused sm712vga_setup(char *options)
 906 {
 907         int index;
 908
 909         if (!options || !*options) {
 910                 smdbg("\n No vga parameter\n");
 911                 return -EINVAL;
 912         }
 913
 914         smtc_screen_info.lfb_width = 0;
 915         smtc_screen_info.lfb_height = 0;
 916         smtc_screen_info.lfb_depth = 0;
 917
 918         smdbg("\nsm712vga_setup = %s\n", options);
 919
 920         for (index = 0;
 921              index < (sizeof(vesa_mode) / sizeof(struct vesa_mode_table));
 922              index++) {
 923                 if (strstr(options, vesa_mode[index].mode_index)) {
 924                         smtc_screen_info.lfb_width = vesa_mode[index].lfb_width;
 925                         smtc_screen_info.lfb_height =
 926                                         vesa_mode[index].lfb_height;
 927                         smtc_screen_info.lfb_depth = vesa_mode[index].lfb_depth;
 928                         return 0;
 929                 }
 930         }
 931
 932         return -1;
 933 }
 934 __setup("vga=", sm712vga_setup);
 935
 936 /* Jason (08/13/2009)
 937  * Original init function changed to probe method to be used by pci_drv
 938  * process used to detect chips replaced with kernel process in pci_drv
 939  */
 940 static int __init smtcfb_pci_probe(struct pci_dev *pdev,
 941                                    const struct pci_device_id *ent)
 942 {
 943         struct smtcfb_info *sfb;
 944         u_long smem_size = 0x00800000;  /* default 8MB */
 945         char name[16];
 946         int err;
 947         unsigned long pFramebufferPhysical;
 948
 949         printk(KERN_INFO
 950                 "Silicon Motion display driver " SMTC_LINUX_FB_VERSION "\n");
 951
 952         err = pci_enable_device(pdev);  /* enable SMTC chip */
 953
 954         if (err)
 955                 return err;
 956         err = -ENOMEM;
 957
 958         hw.chipID = ent->device;
 959         sprintf(name, "sm%Xfb", hw.chipID);
 960
 961         sfb = smtc_alloc_fb_info(pdev, name);
 962
 963         if (!sfb)
 964                 goto failed;
 965         /* Jason (08/13/2009)
 966          * Store fb_info to be further used when suspending and resuming
 967          */
 968         pci_set_drvdata(pdev, sfb);
 969
 970         sm7xx_init_hw();
 971
 972         /*get mode parameter from smtc_screen_info */
 973         if (smtc_screen_info.lfb_width != 0) {
 974                 sfb->fb.var.xres = smtc_screen_info.lfb_width;
 975                 sfb->fb.var.yres = smtc_screen_info.lfb_height;
 976                 sfb->fb.var.bits_per_pixel = smtc_screen_info.lfb_depth;
 977         } else {
 978                 /* default resolution 1024x600 16bit mode */
 979                 sfb->fb.var.xres = SCREEN_X_RES;
 980                 sfb->fb.var.yres = SCREEN_Y_RES;
 981                 sfb->fb.var.bits_per_pixel = SCREEN_BPP;
 982         }
 983
 984 #ifdef __BIG_ENDIAN
 985         if (sfb->fb.var.bits_per_pixel == 24)
 986                 sfb->fb.var.bits_per_pixel = (smtc_screen_info.lfb_depth = 32);
 987 #endif
 988         /* Map address and memory detection */
 989         pFramebufferPhysical = pci_resource_start(pdev, 0);
 990         pci_read_config_byte(pdev, PCI_REVISION_ID, &hw.chipRevID);
 991
 992         switch (hw.chipID) {
 993         case 0x710:
 994         case 0x712:
 995                 sfb->fb.fix.mmio_start = pFramebufferPhysical + 0x00400000;
 996                 sfb->fb.fix.mmio_len = 0x00400000;
 997                 smem_size = SM712_VIDEOMEMORYSIZE;
 998 #ifdef __BIG_ENDIAN
 999                 hw.m_pLFB = (smtc_VRAMBaseAddress =
1000                     ioremap(pFramebufferPhysical, 0x00c00000));
1001 #else
1002                 hw.m_pLFB = (smtc_VRAMBaseAddress =
1003                     ioremap(pFramebufferPhysical, 0x00800000));
1004 #endif
1005                 hw.m_pMMIO = (smtc_RegBaseAddress =
1006                     smtc_VRAMBaseAddress + 0x00700000);
1007                 smtc_2DBaseAddress = (hw.m_pDPR =
1008                     smtc_VRAMBaseAddress + 0x00408000);
1009                 smtc_2Ddataport = smtc_VRAMBaseAddress + DE_DATA_PORT_712;
1010                 hw.m_pVPR = hw.m_pLFB + 0x0040c000;
1011 #ifdef __BIG_ENDIAN
1012                 if (sfb->fb.var.bits_per_pixel == 32) {
1013                         smtc_VRAMBaseAddress += 0x800000;
1014                         hw.m_pLFB += 0x800000;
1015                         printk(KERN_INFO
1016                                 "\nsmtc_VRAMBaseAddress=%p hw.m_pLFB=%p\n",
1017                                         smtc_VRAMBaseAddress, hw.m_pLFB);
1018                 }
1019 #endif
1020                 if (!smtc_RegBaseAddress) {
1021                         printk(KERN_INFO
1022                                 "%s: unable to map memory mapped IO\n",
1023                                 sfb->fb.fix.id);
1024                         return -ENOMEM;
1025                 }
1026
1027                 /* set MCLK = 14.31818 * (0x16 / 0x2) */
1028                 smtc_seqw(0x6a, 0x16);
1029                 smtc_seqw(0x6b, 0x02);
1030                 smtc_seqw(0x62, 0x3e);
1031                 /* enable PCI burst */
1032                 smtc_seqw(0x17, 0x20);
1033                 /* enable word swap */
1034 #ifdef __BIG_ENDIAN
1035                 if (sfb->fb.var.bits_per_pixel == 32)
1036                         smtc_seqw(0x17, 0x30);
1037 #endif
1038 #ifdef CONFIG_FB_SM7XX_ACCEL
1039                 smtc_2Dacceleration = 1;
1040 #endif
1041                 break;
1042         case 0x720:
1043                 sfb->fb.fix.mmio_start = pFramebufferPhysical;
1044                 sfb->fb.fix.mmio_len = 0x00200000;
1045                 smem_size = SM722_VIDEOMEMORYSIZE;
1046                 smtc_2DBaseAddress = (hw.m_pDPR =
1047                     ioremap(pFramebufferPhysical, 0x00a00000));
1048                 hw.m_pLFB = (smtc_VRAMBaseAddress =
1049                     smtc_2DBaseAddress + 0x00200000);
1050                 hw.m_pMMIO = (smtc_RegBaseAddress =
1051                     smtc_2DBaseAddress + 0x000c0000);
1052                 smtc_2Ddataport = smtc_2DBaseAddress + DE_DATA_PORT_722;
1053                 hw.m_pVPR = smtc_2DBaseAddress + 0x800;
1054
1055                 smtc_seqw(0x62, 0xff);
1056                 smtc_seqw(0x6a, 0x0d);
1057                 smtc_seqw(0x6b, 0x02);
1058                 smtc_2Dacceleration = 0;
1059                 break;
1060         default:
1061                 printk(KERN_INFO
1062                 "No valid Silicon Motion display chip was detected!\n");
1063
1064                 smtc_free_fb_info(sfb);
1065                 return err;
1066         }
1067
1068         /* can support 32 bpp */
1069         if (15 == sfb->fb.var.bits_per_pixel)
1070                 sfb->fb.var.bits_per_pixel = 16;
1071
1072         sfb->fb.var.xres_virtual = sfb->fb.var.xres;
1073         sfb->fb.var.yres_virtual = sfb->fb.var.yres;
1074         err = smtc_map_smem(sfb, pdev, smem_size);
1075         if (err)
1076                 goto failed;
1077
1078         smtcfb_setmode(sfb);
1079         /* Primary display starting from 0 postion */
1080         hw.BaseAddressInVRAM = 0;
1081         sfb->fb.par = &hw;
1082
1083         err = register_framebuffer(&sfb->fb);
1084         if (err < 0)
1085                 goto failed;
1086
1087         printk(KERN_INFO "Silicon Motion SM%X Rev%X primary display mode"
1088                         "%dx%d-%d Init Complete.\n", hw.chipID, hw.chipRevID,
1089                         sfb->fb.var.xres, sfb->fb.var.yres,
1090                         sfb->fb.var.bits_per_pixel);
1091
1092         return 0;
1093
1094  failed:
1095         printk(KERN_INFO "Silicon Motion, Inc.  primary display init fail\n");
1096
1097         smtc_unmap_smem(sfb);
1098         smtc_unmap_mmio(sfb);
1099         smtc_free_fb_info(sfb);
1100
1101         return err;
1102 }
1103
1104
1105 /* Jason (08/11/2009) PCI_DRV wrapper essential structs */
1106 static struct pci_device_id smtcfb_pci_table[] = {
1107         {0x126f, 0x710, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1108         {0x126f, 0x712, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1109         {0x126f, 0x720, PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0},
1110         {0,}
1111 };
1112
1113
1114 /* Jason (08/14/2009)
1115  * do some clean up when the driver module is removed
1116  */
1117 static void __devexit smtcfb_pci_remove(struct pci_dev *pdev)
1118 {
1119         struct smtcfb_info *sfb;
1120
1121         sfb = pci_get_drvdata(pdev);
1122         pci_set_drvdata(pdev, NULL);
1123         smtc_unmap_smem(sfb);
1124         smtc_unmap_mmio(sfb);
1125         unregister_framebuffer(&sfb->fb);
1126         smtc_free_fb_info(sfb);
1127 }
1128
1129 /* Jason (08/14/2009)
1130  * suspend function, called when the suspend event is triggered
1131  */
1132 static int __maybe_unused smtcfb_suspend(struct pci_dev *pdev, pm_message_t msg)
1133 {
1134         struct smtcfb_info *sfb;
1135         int retv;
1136
1137         sfb = pci_get_drvdata(pdev);
1138
1139         /* set the hw in sleep mode use externel clock and self memory refresh
1140          * so that we can turn off internal PLLs later on
1141          */
1142         smtc_seqw(0x20, (smtc_seqr(0x20) | 0xc0));
1143         smtc_seqw(0x69, (smtc_seqr(0x69) & 0xf7));
1144
1145         switch (msg.event) {
1146         case PM_EVENT_FREEZE:
1147         case PM_EVENT_PRETHAW:
1148                 pdev->dev.power.power_state = msg;
1149                 return 0;
1150         }
1151
1152         /* when doing suspend, call fb apis and pci apis */
1153         if (msg.event == PM_EVENT_SUSPEND) {
1154                 acquire_console_sem();
1155                 fb_set_suspend(&sfb->fb, 1);
1156                 release_console_sem();
1157                 retv = pci_save_state(pdev);
1158                 pci_disable_device(pdev);
1159                 retv = pci_choose_state(pdev, msg);
1160                 retv = pci_set_power_state(pdev, retv);
1161         }
1162
1163         pdev->dev.power.power_state = msg;
1164
1165         /* additionaly turn off all function blocks including internal PLLs */
1166         smtc_seqw(0x21, 0xff);
1167
1168         return 0;
1169 }
1170
1171 static int __maybe_unused smtcfb_resume(struct pci_dev *pdev)
1172 {
1173         struct smtcfb_info *sfb;
1174         int retv;
1175
1176         sfb = pci_get_drvdata(pdev);
1177
1178         /* when resuming, restore pci data and fb cursor */
1179         if (pdev->dev.power.power_state.event != PM_EVENT_FREEZE) {
1180                 retv = pci_set_power_state(pdev, PCI_D0);
1181                 retv = pci_restore_state(pdev);
1182                 if (pci_enable_device(pdev))
1183                         return -1;
1184                 pci_set_master(pdev);
1185         }
1186
1187         /* reinit hardware */
1188         sm7xx_init_hw();
1189         switch (hw.chipID) {
1190         case 0x710:
1191         case 0x712:
1192                 /* set MCLK = 14.31818 *  (0x16 / 0x2) */
1193                 smtc_seqw(0x6a, 0x16);
1194                 smtc_seqw(0x6b, 0x02);
1195                 smtc_seqw(0x62, 0x3e);
1196                 /* enable PCI burst */
1197                 smtc_seqw(0x17, 0x20);
1198 #ifdef __BIG_ENDIAN
1199                 if (sfb->fb.var.bits_per_pixel == 32)
1200                         smtc_seqw(0x17, 0x30);
1201 #endif
1202                 break;
1203         case 0x720:
1204                 smtc_seqw(0x62, 0xff);
1205                 smtc_seqw(0x6a, 0x0d);
1206                 smtc_seqw(0x6b, 0x02);
1207                 break;
1208         }
1209
1210         smtc_seqw(0x34, (smtc_seqr(0x34) | 0xc0));
1211         smtc_seqw(0x33, ((smtc_seqr(0x33) | 0x08) & 0xfb));
1212
1213         smtcfb_setmode(sfb);
1214
1215         acquire_console_sem();
1216         fb_set_suspend(&sfb->fb, 0);
1217         release_console_sem();
1218
1219         return 0;
1220 }
1221
1222 /* Jason (08/13/2009)
1223  * pci_driver struct used to wrap the original driver
1224  * so that it can be registered into the kernel and
1225  * the proper method would be called when suspending and resuming
1226  */
1227 static struct pci_driver smtcfb_driver = {
1228         .name = "smtcfb",
1229         .id_table = smtcfb_pci_table,
1230         .probe = smtcfb_pci_probe,
1231         .remove = __devexit_p(smtcfb_pci_remove),
1232 #ifdef CONFIG_PM
1233         .suspend = smtcfb_suspend,
1234         .resume = smtcfb_resume,
1235 #endif
1236 };
1237
1238 static int __init smtcfb_init(void)
1239 {
1240         return pci_register_driver(&smtcfb_driver);
1241 }
1242
1243 static void __exit smtcfb_exit(void)
1244 {
1245         pci_unregister_driver(&smtcfb_driver);
1246 }
1247
1248 module_init(smtcfb_init);
1249 module_exit(smtcfb_exit);
1250
1251 MODULE_AUTHOR("Siliconmotion ");
1252 MODULE_DESCRIPTION("Framebuffer driver for SMI Graphic Cards");
1253 MODULE_LICENSE("GPL");