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