drivers/video/via/viafbdev.c

   1 /*
   2  * Copyright 1998-2009 VIA Technologies, Inc. All Rights Reserved.
   3  * Copyright 2001-2008 S3 Graphics, Inc. All Rights Reserved.
   4
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU General Public
   7  * License as published by the Free Software Foundation;
   8  * either version 2, or (at your option) any later version.
   9
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTIES OR REPRESENTATIONS; without even
  12  * the implied warranty of MERCHANTABILITY or FITNESS FOR
  13  * A PARTICULAR PURPOSE.See the GNU General Public License
  14  * for more details.
  15
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc.,
  19  * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  20  */
  21
  22 #include <linux/module.h>
  23 #include <linux/seq_file.h>
  24 #include <linux/stat.h>
  25 #define _MASTER_FILE
  26
  27 #include "via-core.h"
  28 #include "global.h"
  29
  30 static char *viafb_name = "Via";
  31 static u32 pseudo_pal[17];
  32
  33 /* video mode */
  34 static char *viafb_mode;
  35 static char *viafb_mode1;
  36 static int viafb_bpp = 32;
  37 static int viafb_bpp1 = 32;
  38
  39 static unsigned int viafb_second_offset;
  40 static int viafb_second_size;
  41
  42 static int viafb_accel = 1;
  43
  44 /* Added for specifying active devices.*/
  45 char *viafb_active_dev;
  46
  47 /*Added for specify lcd output port*/
  48 char *viafb_lcd_port = "";
  49 char *viafb_dvi_port = "";
  50
  51 static void viafb_set_device(struct device_t active_dev);
  52 static int apply_device_setting(struct viafb_ioctl_setting setting_info,
  53                          struct fb_info *info);
  54 static void apply_second_mode_setting(struct fb_var_screeninfo
  55         *sec_var);
  56 static void retrieve_device_setting(struct viafb_ioctl_setting
  57         *setting_info);
  58 static int viafb_pan_display(struct fb_var_screeninfo *var,
  59         struct fb_info *info);
  60
  61 static struct fb_ops viafb_ops;
  62
  63
  64 static void viafb_fill_var_color_info(struct fb_var_screeninfo *var, u8 depth)
  65 {
  66         var->grayscale = 0;
  67         var->red.msb_right = 0;
  68         var->green.msb_right = 0;
  69         var->blue.msb_right = 0;
  70         var->transp.offset = 0;
  71         var->transp.length = 0;
  72         var->transp.msb_right = 0;
  73         var->nonstd = 0;
  74         switch (depth) {
  75         case 8:
  76                 var->bits_per_pixel = 8;
  77                 var->red.offset = 0;
  78                 var->green.offset = 0;
  79                 var->blue.offset = 0;
  80                 var->red.length = 8;
  81                 var->green.length = 8;
  82                 var->blue.length = 8;
  83                 break;
  84         case 15:
  85                 var->bits_per_pixel = 16;
  86                 var->red.offset = 10;
  87                 var->green.offset = 5;
  88                 var->blue.offset = 0;
  89                 var->red.length = 5;
  90                 var->green.length = 5;
  91                 var->blue.length = 5;
  92                 break;
  93         case 16:
  94                 var->bits_per_pixel = 16;
  95                 var->red.offset = 11;
  96                 var->green.offset = 5;
  97                 var->blue.offset = 0;
  98                 var->red.length = 5;
  99                 var->green.length = 6;
 100                 var->blue.length = 5;
 101                 break;
 102         case 24:
 103                 var->bits_per_pixel = 32;
 104                 var->red.offset = 16;
 105                 var->green.offset = 8;
 106                 var->blue.offset = 0;
 107                 var->red.length = 8;
 108                 var->green.length = 8;
 109                 var->blue.length = 8;
 110                 break;
 111         case 30:
 112                 var->bits_per_pixel = 32;
 113                 var->red.offset = 20;
 114                 var->green.offset = 10;
 115                 var->blue.offset = 0;
 116                 var->red.length = 10;
 117                 var->green.length = 10;
 118                 var->blue.length = 10;
 119                 break;
 120         }
 121 }
 122
 123 static void viafb_update_fix(struct fb_info *info)
 124 {
 125         u32 bpp = info->var.bits_per_pixel;
 126
 127         info->fix.visual =
 128                 bpp == 8 ? FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_TRUECOLOR;
 129         info->fix.line_length = (info->var.xres_virtual * bpp / 8 + 7) & ~7;
 130 }
 131
 132 static void viafb_setup_fixinfo(struct fb_fix_screeninfo *fix,
 133         struct viafb_par *viaparinfo)
 134 {
 135         memset(fix, 0, sizeof(struct fb_fix_screeninfo));
 136         strcpy(fix->id, viafb_name);
 137
 138         fix->smem_start = viaparinfo->fbmem;
 139         fix->smem_len = viaparinfo->fbmem_free;
 140
 141         fix->type = FB_TYPE_PACKED_PIXELS;
 142         fix->type_aux = 0;
 143         fix->visual = FB_VISUAL_TRUECOLOR;
 144
 145         fix->xpanstep = fix->ywrapstep = 0;
 146         fix->ypanstep = 1;
 147
 148         /* Just tell the accel name */
 149         viafbinfo->fix.accel = FB_ACCEL_VIA_UNICHROME;
 150 }
 151 static int viafb_open(struct fb_info *info, int user)
 152 {
 153         DEBUG_MSG(KERN_INFO "viafb_open!\n");
 154         return 0;
 155 }
 156
 157 static int viafb_release(struct fb_info *info, int user)
 158 {
 159         DEBUG_MSG(KERN_INFO "viafb_release!\n");
 160         return 0;
 161 }
 162
 163 static int viafb_check_var(struct fb_var_screeninfo *var,
 164         struct fb_info *info)
 165 {
 166         int htotal, vtotal, depth;
 167         struct VideoModeTable *vmode_entry;
 168         struct viafb_par *ppar = info->par;
 169         u32 long_refresh, line;
 170
 171         DEBUG_MSG(KERN_INFO "viafb_check_var!\n");
 172         /* Sanity check */
 173         /* HW neither support interlacte nor double-scaned mode */
 174         if (var->vmode & FB_VMODE_INTERLACED || var->vmode & FB_VMODE_DOUBLE)
 175                 return -EINVAL;
 176
 177         vmode_entry = viafb_get_mode(var->xres, var->yres);
 178         if (!vmode_entry) {
 179                 DEBUG_MSG(KERN_INFO
 180                           "viafb: Mode %dx%dx%d not supported!!\n",
 181                           var->xres, var->yres, var->bits_per_pixel);
 182                 return -EINVAL;
 183         }
 184
 185         depth = fb_get_color_depth(var, &info->fix);
 186         if (!depth)
 187                 depth = var->bits_per_pixel;
 188
 189         if (depth < 0 || depth > 32)
 190                 return -EINVAL;
 191         else if (!depth)
 192                 depth = 24;
 193         else if (depth == 15 && viafb_dual_fb && ppar->iga_path == IGA1)
 194                 depth = 15;
 195         else if (depth == 30)
 196                 depth = 30;
 197         else if (depth <= 8)
 198                 depth = 8;
 199         else if (depth <= 16)
 200                 depth = 16;
 201         else
 202                 depth = 24;
 203
 204         viafb_fill_var_color_info(var, depth);
 205         line = (var->xres_virtual * var->bits_per_pixel / 8 + 7) & ~7;
 206         if (line * var->yres_virtual > ppar->memsize)
 207                 return -EINVAL;
 208
 209         /* Based on var passed in to calculate the refresh,
 210          * because our driver use some modes special.
 211          */
 212         htotal = var->xres + var->left_margin +
 213         var->right_margin + var->hsync_len;
 214         vtotal = var->yres + var->upper_margin +
 215                 var->lower_margin + var->vsync_len;
 216         long_refresh = 1000000000UL / var->pixclock * 1000;
 217         long_refresh /= (htotal * vtotal);
 218
 219         viafb_refresh = viafb_get_refresh(var->xres, var->yres, long_refresh);
 220
 221         /* Adjust var according to our driver's own table */
 222         viafb_fill_var_timing_info(var, viafb_refresh, vmode_entry);
 223         if (info->var.accel_flags & FB_ACCELF_TEXT &&
 224                 !ppar->shared->vdev->engine_mmio)
 225                 info->var.accel_flags = 0;
 226
 227         return 0;
 228 }
 229
 230 static int viafb_set_par(struct fb_info *info)
 231 {
 232         struct viafb_par *viapar = info->par;
 233         struct VideoModeTable *vmode_entry, *vmode_entry1 = NULL;
 234         DEBUG_MSG(KERN_INFO "viafb_set_par!\n");
 235
 236         viapar->depth = fb_get_color_depth(&info->var, &info->fix);
 237         viafb_update_device_setting(viafbinfo->var.xres, viafbinfo->var.yres,
 238                 viafbinfo->var.bits_per_pixel, viafb_refresh, 0);
 239
 240         vmode_entry = viafb_get_mode(viafbinfo->var.xres, viafbinfo->var.yres);
 241         if (viafb_dual_fb) {
 242                 vmode_entry1 = viafb_get_mode(viafbinfo1->var.xres,
 243                         viafbinfo1->var.yres);
 244                 viafb_update_device_setting(viafbinfo1->var.xres,
 245                         viafbinfo1->var.yres, viafbinfo1->var.bits_per_pixel,
 246                         viafb_refresh1, 1);
 247         } else if (viafb_SAMM_ON == 1) {
 248                 DEBUG_MSG(KERN_INFO
 249                 "viafb_second_xres = %d, viafb_second_yres = %d, bpp = %d\n",
 250                           viafb_second_xres, viafb_second_yres, viafb_bpp1);
 251                 vmode_entry1 = viafb_get_mode(viafb_second_xres,
 252                         viafb_second_yres);
 253
 254                 viafb_update_device_setting(viafb_second_xres,
 255                         viafb_second_yres, viafb_bpp1, viafb_refresh1, 1);
 256         }
 257
 258         if (vmode_entry) {
 259                 viafb_update_fix(info);
 260                 if (viafb_dual_fb && viapar->iga_path == IGA2)
 261                         viafb_bpp1 = info->var.bits_per_pixel;
 262                 else
 263                         viafb_bpp = info->var.bits_per_pixel;
 264
 265                 if (info->var.accel_flags & FB_ACCELF_TEXT)
 266                         info->flags &= ~FBINFO_HWACCEL_DISABLED;
 267                 else
 268                         info->flags |= FBINFO_HWACCEL_DISABLED;
 269                 viafb_setmode(vmode_entry, info->var.bits_per_pixel,
 270                         vmode_entry1, viafb_bpp1);
 271                 viafb_pan_display(&info->var, info);
 272         }
 273
 274         return 0;
 275 }
 276
 277 /* Set one color register */
 278 static int viafb_setcolreg(unsigned regno, unsigned red, unsigned green,
 279 unsigned blue, unsigned transp, struct fb_info *info)
 280 {
 281         struct viafb_par *viapar = info->par;
 282         u32 r, g, b;
 283
 284         if (info->fix.visual == FB_VISUAL_PSEUDOCOLOR) {
 285                 if (regno > 255)
 286                         return -EINVAL;
 287
 288                 if (!viafb_dual_fb || viapar->iga_path == IGA1)
 289                         viafb_set_primary_color_register(regno, red >> 8,
 290                                 green >> 8, blue >> 8);
 291
 292                 if (!viafb_dual_fb || viapar->iga_path == IGA2)
 293                         viafb_set_secondary_color_register(regno, red >> 8,
 294                                 green >> 8, blue >> 8);
 295         } else {
 296                 if (regno > 15)
 297                         return -EINVAL;
 298
 299                 r = (red >> (16 - info->var.red.length))
 300                         << info->var.red.offset;
 301                 b = (blue >> (16 - info->var.blue.length))
 302                         << info->var.blue.offset;
 303                 g = (green >> (16 - info->var.green.length))
 304                         << info->var.green.offset;
 305                 ((u32 *) info->pseudo_palette)[regno] = r | g | b;
 306         }
 307
 308         return 0;
 309 }
 310
 311 static int viafb_pan_display(struct fb_var_screeninfo *var,
 312         struct fb_info *info)
 313 {
 314         struct viafb_par *viapar = info->par;
 315         u32 vram_addr = (var->yoffset * var->xres_virtual + var->xoffset)
 316                 * (var->bits_per_pixel / 8) + viapar->vram_addr;
 317
 318         DEBUG_MSG(KERN_DEBUG "viafb_pan_display, address = %d\n", vram_addr);
 319         if (!viafb_dual_fb) {
 320                 via_set_primary_address(vram_addr);
 321                 via_set_secondary_address(vram_addr);
 322         } else if (viapar->iga_path == IGA1)
 323                 via_set_primary_address(vram_addr);
 324         else
 325                 via_set_secondary_address(vram_addr);
 326
 327         return 0;
 328 }
 329
 330 static int viafb_blank(int blank_mode, struct fb_info *info)
 331 {
 332         DEBUG_MSG(KERN_INFO "viafb_blank!\n");
 333         /* clear DPMS setting */
 334
 335         switch (blank_mode) {
 336         case FB_BLANK_UNBLANK:
 337                 /* Screen: On, HSync: On, VSync: On */
 338                 /* control CRT monitor power management */
 339                 viafb_write_reg_mask(CR36, VIACR, 0x00, BIT4 + BIT5);
 340                 break;
 341         case FB_BLANK_HSYNC_SUSPEND:
 342                 /* Screen: Off, HSync: Off, VSync: On */
 343                 /* control CRT monitor power management */
 344                 viafb_write_reg_mask(CR36, VIACR, 0x10, BIT4 + BIT5);
 345                 break;
 346         case FB_BLANK_VSYNC_SUSPEND:
 347                 /* Screen: Off, HSync: On, VSync: Off */
 348                 /* control CRT monitor power management */
 349                 viafb_write_reg_mask(CR36, VIACR, 0x20, BIT4 + BIT5);
 350                 break;
 351         case FB_BLANK_POWERDOWN:
 352                 /* Screen: Off, HSync: Off, VSync: Off */
 353                 /* control CRT monitor power management */
 354                 viafb_write_reg_mask(CR36, VIACR, 0x30, BIT4 + BIT5);
 355                 break;
 356         }
 357
 358         return 0;
 359 }
 360
 361 static int viafb_ioctl(struct fb_info *info, u_int cmd, u_long arg)
 362 {
 363         union {
 364                 struct viafb_ioctl_mode viamode;
 365                 struct viafb_ioctl_samm viasamm;
 366                 struct viafb_driver_version driver_version;
 367                 struct fb_var_screeninfo sec_var;
 368                 struct _panel_size_pos_info panel_pos_size_para;
 369                 struct viafb_ioctl_setting viafb_setting;
 370                 struct device_t active_dev;
 371         } u;
 372         u32 state_info = 0;
 373         u32 *viafb_gamma_table;
 374         char driver_name[] = "viafb";
 375
 376         u32 __user *argp = (u32 __user *) arg;
 377         u32 gpu32;
 378
 379         DEBUG_MSG(KERN_INFO "viafb_ioctl: 0x%X !!\n", cmd);
 380         printk(KERN_WARNING "viafb_ioctl: Please avoid this interface as it is unstable and might change or vanish at any time!\n");
 381         memset(&u, 0, sizeof(u));
 382
 383         switch (cmd) {
 384         case VIAFB_GET_CHIP_INFO:
 385                 if (copy_to_user(argp, viaparinfo->chip_info,
 386                                 sizeof(struct chip_information)))
 387                         return -EFAULT;
 388                 break;
 389         case VIAFB_GET_INFO_SIZE:
 390                 return put_user((u32)sizeof(struct viafb_ioctl_info), argp);
 391         case VIAFB_GET_INFO:
 392                 return viafb_ioctl_get_viafb_info(arg);
 393         case VIAFB_HOTPLUG:
 394                 return put_user(viafb_ioctl_hotplug(info->var.xres,
 395                                               info->var.yres,
 396                                               info->var.bits_per_pixel), argp);
 397         case VIAFB_SET_HOTPLUG_FLAG:
 398                 if (copy_from_user(&gpu32, argp, sizeof(gpu32)))
 399                         return -EFAULT;
 400                 viafb_hotplug = (gpu32) ? 1 : 0;
 401                 break;
 402         case VIAFB_GET_RESOLUTION:
 403                 u.viamode.xres = (u32) viafb_hotplug_Xres;
 404                 u.viamode.yres = (u32) viafb_hotplug_Yres;
 405                 u.viamode.refresh = (u32) viafb_hotplug_refresh;
 406                 u.viamode.bpp = (u32) viafb_hotplug_bpp;
 407                 if (viafb_SAMM_ON == 1) {
 408                         u.viamode.xres_sec = viafb_second_xres;
 409                         u.viamode.yres_sec = viafb_second_yres;
 410                         u.viamode.virtual_xres_sec = viafb_second_virtual_xres;
 411                         u.viamode.virtual_yres_sec = viafb_second_virtual_yres;
 412                         u.viamode.refresh_sec = viafb_refresh1;
 413                         u.viamode.bpp_sec = viafb_bpp1;
 414                 } else {
 415                         u.viamode.xres_sec = 0;
 416                         u.viamode.yres_sec = 0;
 417                         u.viamode.virtual_xres_sec = 0;
 418                         u.viamode.virtual_yres_sec = 0;
 419                         u.viamode.refresh_sec = 0;
 420                         u.viamode.bpp_sec = 0;
 421                 }
 422                 if (copy_to_user(argp, &u.viamode, sizeof(u.viamode)))
 423                         return -EFAULT;
 424                 break;
 425         case VIAFB_GET_SAMM_INFO:
 426                 u.viasamm.samm_status = viafb_SAMM_ON;
 427
 428                 if (viafb_SAMM_ON == 1) {
 429                         if (viafb_dual_fb) {
 430                                 u.viasamm.size_prim = viaparinfo->fbmem_free;
 431                                 u.viasamm.size_sec = viaparinfo1->fbmem_free;
 432                         } else {
 433                                 if (viafb_second_size) {
 434                                         u.viasamm.size_prim =
 435                                             viaparinfo->fbmem_free -
 436                                             viafb_second_size * 1024 * 1024;
 437                                         u.viasamm.size_sec =
 438                                             viafb_second_size * 1024 * 1024;
 439                                 } else {
 440                                         u.viasamm.size_prim =
 441                                             viaparinfo->fbmem_free >> 1;
 442                                         u.viasamm.size_sec =
 443                                             (viaparinfo->fbmem_free >> 1);
 444                                 }
 445                         }
 446                         u.viasamm.mem_base = viaparinfo->fbmem;
 447                         u.viasamm.offset_sec = viafb_second_offset;
 448                 } else {
 449                         u.viasamm.size_prim =
 450                             viaparinfo->memsize - viaparinfo->fbmem_used;
 451                         u.viasamm.size_sec = 0;
 452                         u.viasamm.mem_base = viaparinfo->fbmem;
 453                         u.viasamm.offset_sec = 0;
 454                 }
 455
 456                 if (copy_to_user(argp, &u.viasamm, sizeof(u.viasamm)))
 457                         return -EFAULT;
 458
 459                 break;
 460         case VIAFB_TURN_ON_OUTPUT_DEVICE:
 461                 if (copy_from_user(&gpu32, argp, sizeof(gpu32)))
 462                         return -EFAULT;
 463                 if (gpu32 & CRT_Device)
 464                         viafb_crt_enable();
 465                 if (gpu32 & DVI_Device)
 466                         viafb_dvi_enable();
 467                 if (gpu32 & LCD_Device)
 468                         viafb_lcd_enable();
 469                 break;
 470         case VIAFB_TURN_OFF_OUTPUT_DEVICE:
 471                 if (copy_from_user(&gpu32, argp, sizeof(gpu32)))
 472                         return -EFAULT;
 473                 if (gpu32 & CRT_Device)
 474                         viafb_crt_disable();
 475                 if (gpu32 & DVI_Device)
 476                         viafb_dvi_disable();
 477                 if (gpu32 & LCD_Device)
 478                         viafb_lcd_disable();
 479                 break;
 480         case VIAFB_SET_DEVICE:
 481                 if (copy_from_user(&u.active_dev, (void *)argp,
 482                         sizeof(u.active_dev)))
 483                         return -EFAULT;
 484                 viafb_set_device(u.active_dev);
 485                 viafb_set_par(info);
 486                 break;
 487         case VIAFB_GET_DEVICE:
 488                 u.active_dev.crt = viafb_CRT_ON;
 489                 u.active_dev.dvi = viafb_DVI_ON;
 490                 u.active_dev.lcd = viafb_LCD_ON;
 491                 u.active_dev.samm = viafb_SAMM_ON;
 492                 u.active_dev.primary_dev = viafb_primary_dev;
 493
 494                 u.active_dev.lcd_dsp_cent = viafb_lcd_dsp_method;
 495                 u.active_dev.lcd_panel_id = viafb_lcd_panel_id;
 496                 u.active_dev.lcd_mode = viafb_lcd_mode;
 497
 498                 u.active_dev.xres = viafb_hotplug_Xres;
 499                 u.active_dev.yres = viafb_hotplug_Yres;
 500
 501                 u.active_dev.xres1 = viafb_second_xres;
 502                 u.active_dev.yres1 = viafb_second_yres;
 503
 504                 u.active_dev.bpp = viafb_bpp;
 505                 u.active_dev.bpp1 = viafb_bpp1;
 506                 u.active_dev.refresh = viafb_refresh;
 507                 u.active_dev.refresh1 = viafb_refresh1;
 508
 509                 u.active_dev.epia_dvi = viafb_platform_epia_dvi;
 510                 u.active_dev.lcd_dual_edge = viafb_device_lcd_dualedge;
 511                 u.active_dev.bus_width = viafb_bus_width;
 512
 513                 if (copy_to_user(argp, &u.active_dev, sizeof(u.active_dev)))
 514                         return -EFAULT;
 515                 break;
 516
 517         case VIAFB_GET_DRIVER_VERSION:
 518                 u.driver_version.iMajorNum = VERSION_MAJOR;
 519                 u.driver_version.iKernelNum = VERSION_KERNEL;
 520                 u.driver_version.iOSNum = VERSION_OS;
 521                 u.driver_version.iMinorNum = VERSION_MINOR;
 522
 523                 if (copy_to_user(argp, &u.driver_version,
 524                         sizeof(u.driver_version)))
 525                         return -EFAULT;
 526
 527                 break;
 528
 529         case VIAFB_SET_DEVICE_INFO:
 530                 if (copy_from_user(&u.viafb_setting,
 531                         argp, sizeof(u.viafb_setting)))
 532                         return -EFAULT;
 533                 if (apply_device_setting(u.viafb_setting, info) < 0)
 534                         return -EINVAL;
 535
 536                 break;
 537
 538         case VIAFB_SET_SECOND_MODE:
 539                 if (copy_from_user(&u.sec_var, argp, sizeof(u.sec_var)))
 540                         return -EFAULT;
 541                 apply_second_mode_setting(&u.sec_var);
 542                 break;
 543
 544         case VIAFB_GET_DEVICE_INFO:
 545
 546                 retrieve_device_setting(&u.viafb_setting);
 547
 548                 if (copy_to_user(argp, &u.viafb_setting,
 549                                  sizeof(u.viafb_setting)))
 550                         return -EFAULT;
 551
 552                 break;
 553
 554         case VIAFB_GET_DEVICE_SUPPORT:
 555                 viafb_get_device_support_state(&state_info);
 556                 if (put_user(state_info, argp))
 557                         return -EFAULT;
 558                 break;
 559
 560         case VIAFB_GET_DEVICE_CONNECT:
 561                 viafb_get_device_connect_state(&state_info);
 562                 if (put_user(state_info, argp))
 563                         return -EFAULT;
 564                 break;
 565
 566         case VIAFB_GET_PANEL_SUPPORT_EXPAND:
 567                 state_info =
 568                     viafb_lcd_get_support_expand_state(info->var.xres,
 569                                                  info->var.yres);
 570                 if (put_user(state_info, argp))
 571                         return -EFAULT;
 572                 break;
 573
 574         case VIAFB_GET_DRIVER_NAME:
 575                 if (copy_to_user(argp, driver_name, sizeof(driver_name)))
 576                         return -EFAULT;
 577                 break;
 578
 579         case VIAFB_SET_GAMMA_LUT:
 580                 viafb_gamma_table = kmalloc(256 * sizeof(u32), GFP_KERNEL);
 581                 if (!viafb_gamma_table)
 582                         return -ENOMEM;
 583                 if (copy_from_user(viafb_gamma_table, argp,
 584                                 256 * sizeof(u32))) {
 585                         kfree(viafb_gamma_table);
 586                         return -EFAULT;
 587                 }
 588                 viafb_set_gamma_table(viafb_bpp, viafb_gamma_table);
 589                 kfree(viafb_gamma_table);
 590                 break;
 591
 592         case VIAFB_GET_GAMMA_LUT:
 593                 viafb_gamma_table = kmalloc(256 * sizeof(u32), GFP_KERNEL);
 594                 if (!viafb_gamma_table)
 595                         return -ENOMEM;
 596                 viafb_get_gamma_table(viafb_gamma_table);
 597                 if (copy_to_user(argp, viafb_gamma_table,
 598                         256 * sizeof(u32))) {
 599                         kfree(viafb_gamma_table);
 600                         return -EFAULT;
 601                 }
 602                 kfree(viafb_gamma_table);
 603                 break;
 604
 605         case VIAFB_GET_GAMMA_SUPPORT_STATE:
 606                 viafb_get_gamma_support_state(viafb_bpp, &state_info);
 607                 if (put_user(state_info, argp))
 608                         return -EFAULT;
 609                 break;
 610         case VIAFB_SYNC_SURFACE:
 611                 DEBUG_MSG(KERN_INFO "lobo VIAFB_SYNC_SURFACE\n");
 612                 break;
 613         case VIAFB_GET_DRIVER_CAPS:
 614                 break;
 615
 616         case VIAFB_GET_PANEL_MAX_SIZE:
 617                 if (copy_from_user(&u.panel_pos_size_para, argp,
 618                                    sizeof(u.panel_pos_size_para)))
 619                         return -EFAULT;
 620                 u.panel_pos_size_para.x = u.panel_pos_size_para.y = 0;
 621                 if (copy_to_user(argp, &u.panel_pos_size_para,
 622                      sizeof(u.panel_pos_size_para)))
 623                         return -EFAULT;
 624                 break;
 625         case VIAFB_GET_PANEL_MAX_POSITION:
 626                 if (copy_from_user(&u.panel_pos_size_para, argp,
 627                                    sizeof(u.panel_pos_size_para)))
 628                         return -EFAULT;
 629                 u.panel_pos_size_para.x = u.panel_pos_size_para.y = 0;
 630                 if (copy_to_user(argp, &u.panel_pos_size_para,
 631                                  sizeof(u.panel_pos_size_para)))
 632                         return -EFAULT;
 633                 break;
 634
 635         case VIAFB_GET_PANEL_POSITION:
 636                 if (copy_from_user(&u.panel_pos_size_para, argp,
 637                                    sizeof(u.panel_pos_size_para)))
 638                         return -EFAULT;
 639                 u.panel_pos_size_para.x = u.panel_pos_size_para.y = 0;
 640                 if (copy_to_user(argp, &u.panel_pos_size_para,
 641                                  sizeof(u.panel_pos_size_para)))
 642                         return -EFAULT;
 643                 break;
 644         case VIAFB_GET_PANEL_SIZE:
 645                 if (copy_from_user(&u.panel_pos_size_para, argp,
 646                                    sizeof(u.panel_pos_size_para)))
 647                         return -EFAULT;
 648                 u.panel_pos_size_para.x = u.panel_pos_size_para.y = 0;
 649                 if (copy_to_user(argp, &u.panel_pos_size_para,
 650                                  sizeof(u.panel_pos_size_para)))
 651                         return -EFAULT;
 652                 break;
 653
 654         case VIAFB_SET_PANEL_POSITION:
 655                 if (copy_from_user(&u.panel_pos_size_para, argp,
 656                                    sizeof(u.panel_pos_size_para)))
 657                         return -EFAULT;
 658                 break;
 659         case VIAFB_SET_PANEL_SIZE:
 660                 if (copy_from_user(&u.panel_pos_size_para, argp,
 661                                    sizeof(u.panel_pos_size_para)))
 662                         return -EFAULT;
 663                 break;
 664
 665         default:
 666                 return -EINVAL;
 667         }
 668
 669         return 0;
 670 }
 671
 672 static void viafb_fillrect(struct fb_info *info,
 673         const struct fb_fillrect *rect)
 674 {
 675         struct viafb_par *viapar = info->par;
 676         struct viafb_shared *shared = viapar->shared;
 677         u32 fg_color;
 678         u8 rop;
 679
 680         if (info->flags & FBINFO_HWACCEL_DISABLED || !shared->hw_bitblt) {
 681                 cfb_fillrect(info, rect);
 682                 return;
 683         }
 684
 685         if (!rect->width || !rect->height)
 686                 return;
 687
 688         if (info->fix.visual == FB_VISUAL_TRUECOLOR)
 689                 fg_color = ((u32 *)info->pseudo_palette)[rect->color];
 690         else
 691                 fg_color = rect->color;
 692
 693         if (rect->rop == ROP_XOR)
 694                 rop = 0x5A;
 695         else
 696                 rop = 0xF0;
 697
 698         DEBUG_MSG(KERN_DEBUG "viafb 2D engine: fillrect\n");
 699         if (shared->hw_bitblt(shared->vdev->engine_mmio, VIA_BITBLT_FILL,
 700                 rect->width, rect->height, info->var.bits_per_pixel,
 701                 viapar->vram_addr, info->fix.line_length, rect->dx, rect->dy,
 702                 NULL, 0, 0, 0, 0, fg_color, 0, rop))
 703                 cfb_fillrect(info, rect);
 704 }
 705
 706 static void viafb_copyarea(struct fb_info *info,
 707         const struct fb_copyarea *area)
 708 {
 709         struct viafb_par *viapar = info->par;
 710         struct viafb_shared *shared = viapar->shared;
 711
 712         if (info->flags & FBINFO_HWACCEL_DISABLED || !shared->hw_bitblt) {
 713                 cfb_copyarea(info, area);
 714                 return;
 715         }
 716
 717         if (!area->width || !area->height)
 718                 return;
 719
 720         DEBUG_MSG(KERN_DEBUG "viafb 2D engine: copyarea\n");
 721         if (shared->hw_bitblt(shared->vdev->engine_mmio, VIA_BITBLT_COLOR,
 722                 area->width, area->height, info->var.bits_per_pixel,
 723                 viapar->vram_addr, info->fix.line_length, area->dx, area->dy,
 724                 NULL, viapar->vram_addr, info->fix.line_length,
 725                 area->sx, area->sy, 0, 0, 0))
 726                 cfb_copyarea(info, area);
 727 }
 728
 729 static void viafb_imageblit(struct fb_info *info,
 730         const struct fb_image *image)
 731 {
 732         struct viafb_par *viapar = info->par;
 733         struct viafb_shared *shared = viapar->shared;
 734         u32 fg_color = 0, bg_color = 0;
 735         u8 op;
 736
 737         if (info->flags & FBINFO_HWACCEL_DISABLED || !shared->hw_bitblt ||
 738                 (image->depth != 1 && image->depth != viapar->depth)) {
 739                 cfb_imageblit(info, image);
 740                 return;
 741         }
 742
 743         if (image->depth == 1) {
 744                 op = VIA_BITBLT_MONO;
 745                 if (info->fix.visual == FB_VISUAL_TRUECOLOR) {
 746                         fg_color =
 747                                 ((u32 *)info->pseudo_palette)[image->fg_color];
 748                         bg_color =
 749                                 ((u32 *)info->pseudo_palette)[image->bg_color];
 750                 } else {
 751                         fg_color = image->fg_color;
 752                         bg_color = image->bg_color;
 753                 }
 754         } else
 755                 op = VIA_BITBLT_COLOR;
 756
 757         DEBUG_MSG(KERN_DEBUG "viafb 2D engine: imageblit\n");
 758         if (shared->hw_bitblt(shared->vdev->engine_mmio, op,
 759                 image->width, image->height, info->var.bits_per_pixel,
 760                 viapar->vram_addr, info->fix.line_length, image->dx, image->dy,
 761                 (u32 *)image->data, 0, 0, 0, 0, fg_color, bg_color, 0))
 762                 cfb_imageblit(info, image);
 763 }
 764
 765 static int viafb_cursor(struct fb_info *info, struct fb_cursor *cursor)
 766 {
 767         struct viafb_par *viapar = info->par;
 768         void __iomem *engine = viapar->shared->vdev->engine_mmio;
 769         u32 temp, xx, yy, bg_color = 0, fg_color = 0,
 770                 chip_name = viapar->shared->chip_info.gfx_chip_name;
 771         int i, j = 0, cur_size = 64;
 772
 773         if (info->flags & FBINFO_HWACCEL_DISABLED || info != viafbinfo)
 774                 return -ENODEV;
 775
 776         /* LCD ouput does not support hw cursors (at least on VN896) */
 777         if ((chip_name == UNICHROME_CLE266 && viapar->iga_path == IGA2) ||
 778                 viafb_LCD_ON)
 779                 return -ENODEV;
 780
 781         viafb_show_hw_cursor(info, HW_Cursor_OFF);
 782
 783         if (cursor->set & FB_CUR_SETHOT) {
 784                 temp = (cursor->hot.x << 16) + cursor->hot.y;
 785                 writel(temp, engine + VIA_REG_CURSOR_ORG);
 786         }
 787
 788         if (cursor->set & FB_CUR_SETPOS) {
 789                 yy = cursor->image.dy - info->var.yoffset;
 790                 xx = cursor->image.dx - info->var.xoffset;
 791                 temp = yy & 0xFFFF;
 792                 temp |= (xx << 16);
 793                 writel(temp, engine + VIA_REG_CURSOR_POS);
 794         }
 795
 796         if (cursor->image.width <= 32 && cursor->image.height <= 32)
 797                 cur_size = 32;
 798         else if (cursor->image.width <= 64 && cursor->image.height <= 64)
 799                 cur_size = 64;
 800         else {
 801                 printk(KERN_WARNING "viafb_cursor: The cursor is too large "
 802                         "%dx%d", cursor->image.width, cursor->image.height);
 803                 return -ENXIO;
 804         }
 805
 806         if (cursor->set & FB_CUR_SETSIZE) {
 807                 temp = readl(engine + VIA_REG_CURSOR_MODE);
 808                 if (cur_size == 32)
 809                         temp |= 0x2;
 810                 else
 811                         temp &= ~0x2;
 812
 813                 writel(temp, engine + VIA_REG_CURSOR_MODE);
 814         }
 815
 816         if (cursor->set & FB_CUR_SETCMAP) {
 817                 fg_color = cursor->image.fg_color;
 818                 bg_color = cursor->image.bg_color;
 819                 if (chip_name == UNICHROME_CX700 ||
 820                         chip_name == UNICHROME_VX800 ||
 821                         chip_name == UNICHROME_VX855) {
 822                         fg_color =
 823                                 ((info->cmap.red[fg_color] & 0xFFC0) << 14) |
 824                                 ((info->cmap.green[fg_color] & 0xFFC0) << 4) |
 825                                 ((info->cmap.blue[fg_color] & 0xFFC0) >> 6);
 826                         bg_color =
 827                                 ((info->cmap.red[bg_color] & 0xFFC0) << 14) |
 828                                 ((info->cmap.green[bg_color] & 0xFFC0) << 4) |
 829                                 ((info->cmap.blue[bg_color] & 0xFFC0) >> 6);
 830                 } else {
 831                         fg_color =
 832                                 ((info->cmap.red[fg_color] & 0xFF00) << 8) |
 833                                 (info->cmap.green[fg_color] & 0xFF00) |
 834                                 ((info->cmap.blue[fg_color] & 0xFF00) >> 8);
 835                         bg_color =
 836                                 ((info->cmap.red[bg_color] & 0xFF00) << 8) |
 837                                 (info->cmap.green[bg_color] & 0xFF00) |
 838                                 ((info->cmap.blue[bg_color] & 0xFF00) >> 8);
 839                 }
 840
 841                 writel(bg_color, engine + VIA_REG_CURSOR_BG);
 842                 writel(fg_color, engine + VIA_REG_CURSOR_FG);
 843         }
 844
 845         if (cursor->set & FB_CUR_SETSHAPE) {
 846                 struct {
 847                         u8 data[CURSOR_SIZE];
 848                         u32 bak[CURSOR_SIZE / 4];
 849                 } *cr_data = kzalloc(sizeof(*cr_data), GFP_ATOMIC);
 850                 int size = ((cursor->image.width + 7) >> 3) *
 851                         cursor->image.height;
 852
 853                 if (!cr_data)
 854                         return -ENOMEM;
 855
 856                 if (cur_size == 32) {
 857                         for (i = 0; i < (CURSOR_SIZE / 4); i++) {
 858                                 cr_data->bak[i] = 0x0;
 859                                 cr_data->bak[i + 1] = 0xFFFFFFFF;
 860                                 i += 1;
 861                         }
 862                 } else {
 863                         for (i = 0; i < (CURSOR_SIZE / 4); i++) {
 864                                 cr_data->bak[i] = 0x0;
 865                                 cr_data->bak[i + 1] = 0x0;
 866                                 cr_data->bak[i + 2] = 0xFFFFFFFF;
 867                                 cr_data->bak[i + 3] = 0xFFFFFFFF;
 868                                 i += 3;
 869                         }
 870                 }
 871
 872                 switch (cursor->rop) {
 873                 case ROP_XOR:
 874                         for (i = 0; i < size; i++)
 875                                 cr_data->data[i] = cursor->mask[i];
 876                         break;
 877                 case ROP_COPY:
 878
 879                         for (i = 0; i < size; i++)
 880                                 cr_data->data[i] = cursor->mask[i];
 881                         break;
 882                 default:
 883                         break;
 884                 }
 885
 886                 if (cur_size == 32) {
 887                         for (i = 0; i < size; i++) {
 888                                 cr_data->bak[j] = (u32) cr_data->data[i];
 889                                 cr_data->bak[j + 1] = ~cr_data->bak[j];
 890                                 j += 2;
 891                         }
 892                 } else {
 893                         for (i = 0; i < size; i++) {
 894                                 cr_data->bak[j] = (u32) cr_data->data[i];
 895                                 cr_data->bak[j + 1] = 0x0;
 896                                 cr_data->bak[j + 2] = ~cr_data->bak[j];
 897                                 cr_data->bak[j + 3] = ~cr_data->bak[j + 1];
 898                                 j += 4;
 899                         }
 900                 }
 901
 902                 memcpy_toio(viafbinfo->screen_base + viapar->shared->
 903                         cursor_vram_addr, cr_data->bak, CURSOR_SIZE);
 904                 kfree(cr_data);
 905         }
 906
 907         if (cursor->enable)
 908                 viafb_show_hw_cursor(info, HW_Cursor_ON);
 909
 910         return 0;
 911 }
 912
 913 static int viafb_sync(struct fb_info *info)
 914 {
 915         if (!(info->flags & FBINFO_HWACCEL_DISABLED))
 916                 viafb_wait_engine_idle(info);
 917         return 0;
 918 }
 919
 920 static void check_available_device_to_enable(int device_id)
 921 {
 922         int device_num = 0;
 923
 924         /* Initialize: */
 925         viafb_CRT_ON = STATE_OFF;
 926         viafb_DVI_ON = STATE_OFF;
 927         viafb_LCD_ON = STATE_OFF;
 928         viafb_LCD2_ON = STATE_OFF;
 929         viafb_DeviceStatus = None_Device;
 930
 931         if ((device_id & CRT_Device) && (device_num < MAX_ACTIVE_DEV_NUM)) {
 932                 viafb_CRT_ON = STATE_ON;
 933                 device_num++;
 934                 viafb_DeviceStatus |= CRT_Device;
 935         }
 936
 937         if ((device_id & DVI_Device) && (device_num < MAX_ACTIVE_DEV_NUM)) {
 938                 viafb_DVI_ON = STATE_ON;
 939                 device_num++;
 940                 viafb_DeviceStatus |= DVI_Device;
 941         }
 942
 943         if ((device_id & LCD_Device) && (device_num < MAX_ACTIVE_DEV_NUM)) {
 944                 viafb_LCD_ON = STATE_ON;
 945                 device_num++;
 946                 viafb_DeviceStatus |= LCD_Device;
 947         }
 948
 949         if ((device_id & LCD2_Device) && (device_num < MAX_ACTIVE_DEV_NUM)) {
 950                 viafb_LCD2_ON = STATE_ON;
 951                 device_num++;
 952                 viafb_DeviceStatus |= LCD2_Device;
 953         }
 954
 955         if (viafb_DeviceStatus == None_Device) {
 956                 /* Use CRT as default active device: */
 957                 viafb_CRT_ON = STATE_ON;
 958                 viafb_DeviceStatus = CRT_Device;
 959         }
 960         DEBUG_MSG(KERN_INFO "Device Status:%x", viafb_DeviceStatus);
 961 }
 962
 963 static void viafb_set_device(struct device_t active_dev)
 964 {
 965         /* Check available device to enable: */
 966         int device_id = None_Device;
 967         if (active_dev.crt)
 968                 device_id |= CRT_Device;
 969         if (active_dev.dvi)
 970                 device_id |= DVI_Device;
 971         if (active_dev.lcd)
 972                 device_id |= LCD_Device;
 973
 974         check_available_device_to_enable(device_id);
 975
 976         /* Check property of LCD: */
 977         if (viafb_LCD_ON) {
 978                 if (active_dev.lcd_dsp_cent) {
 979                         viaparinfo->lvds_setting_info->display_method =
 980                                 viafb_lcd_dsp_method = LCD_CENTERING;
 981                 } else {
 982                         viaparinfo->lvds_setting_info->display_method =
 983                                 viafb_lcd_dsp_method = LCD_EXPANDSION;
 984                 }
 985
 986                 if (active_dev.lcd_mode == LCD_SPWG) {
 987                         viaparinfo->lvds_setting_info->lcd_mode =
 988                                 viafb_lcd_mode = LCD_SPWG;
 989                 } else {
 990                         viaparinfo->lvds_setting_info->lcd_mode =
 991                                 viafb_lcd_mode = LCD_OPENLDI;
 992                 }
 993
 994                 if (active_dev.lcd_panel_id <= LCD_PANEL_ID_MAXIMUM) {
 995                         viafb_lcd_panel_id = active_dev.lcd_panel_id;
 996                         viafb_init_lcd_size();
 997                 }
 998         }
 999
1000         /* Check property of mode: */
1001         if (!active_dev.xres1)
1002                 viafb_second_xres = 640;
1003         else
1004                 viafb_second_xres = active_dev.xres1;
1005         if (!active_dev.yres1)
1006                 viafb_second_yres = 480;
1007         else
1008                 viafb_second_yres = active_dev.yres1;
1009         if (active_dev.bpp != 0)
1010                 viafb_bpp = active_dev.bpp;
1011         if (active_dev.bpp1 != 0)
1012                 viafb_bpp1 = active_dev.bpp1;
1013         if (active_dev.refresh != 0)
1014                 viafb_refresh = active_dev.refresh;
1015         if (active_dev.refresh1 != 0)
1016                 viafb_refresh1 = active_dev.refresh1;
1017         if ((active_dev.samm == STATE_OFF) || (active_dev.samm == STATE_ON))
1018                 viafb_SAMM_ON = active_dev.samm;
1019         viafb_primary_dev = active_dev.primary_dev;
1020
1021         via_set_primary_address(0);
1022         via_set_secondary_address(viafb_SAMM_ON ? viafb_second_offset : 0);
1023         viafb_set_iga_path();
1024 }
1025
1026 static int get_primary_device(void)
1027 {
1028         int primary_device = 0;
1029         /* Rule: device on iga1 path are the primary device. */
1030         if (viafb_SAMM_ON) {
1031                 if (viafb_CRT_ON) {
1032                         if (viaparinfo->crt_setting_info->iga_path == IGA1) {
1033                                 DEBUG_MSG(KERN_INFO "CRT IGA Path:%d\n",
1034                                         viaparinfo->
1035                                         crt_setting_info->iga_path);
1036                                 primary_device = CRT_Device;
1037                         }
1038                 }
1039                 if (viafb_DVI_ON) {
1040                         if (viaparinfo->tmds_setting_info->iga_path == IGA1) {
1041                                 DEBUG_MSG(KERN_INFO "DVI IGA Path:%d\n",
1042                                         viaparinfo->
1043                                         tmds_setting_info->iga_path);
1044                                 primary_device = DVI_Device;
1045                         }
1046                 }
1047                 if (viafb_LCD_ON) {
1048                         if (viaparinfo->lvds_setting_info->iga_path == IGA1) {
1049                                 DEBUG_MSG(KERN_INFO "LCD IGA Path:%d\n",
1050                                         viaparinfo->
1051                                         lvds_setting_info->iga_path);
1052                                 primary_device = LCD_Device;
1053                         }
1054                 }
1055                 if (viafb_LCD2_ON) {
1056                         if (viaparinfo->lvds_setting_info2->iga_path == IGA1) {
1057                                 DEBUG_MSG(KERN_INFO "LCD2 IGA Path:%d\n",
1058                                         viaparinfo->
1059                                         lvds_setting_info2->iga_path);
1060                                 primary_device = LCD2_Device;
1061                         }
1062                 }
1063         }
1064         return primary_device;
1065 }
1066
1067 static void apply_second_mode_setting(struct fb_var_screeninfo
1068         *sec_var)
1069 {
1070         u32 htotal, vtotal, long_refresh;
1071
1072         htotal = sec_var->xres + sec_var->left_margin +
1073                 sec_var->right_margin + sec_var->hsync_len;
1074         vtotal = sec_var->yres + sec_var->upper_margin +
1075                 sec_var->lower_margin + sec_var->vsync_len;
1076         if ((sec_var->xres_virtual * (sec_var->bits_per_pixel >> 3)) & 0x1F) {
1077                 /*Is 32 bytes alignment? */
1078                 /*32 pixel alignment */
1079                 sec_var->xres_virtual = (sec_var->xres_virtual + 31) & ~31;
1080         }
1081
1082         htotal = sec_var->xres + sec_var->left_margin +
1083                 sec_var->right_margin + sec_var->hsync_len;
1084         vtotal = sec_var->yres + sec_var->upper_margin +
1085                 sec_var->lower_margin + sec_var->vsync_len;
1086         long_refresh = 1000000000UL / sec_var->pixclock * 1000;
1087         long_refresh /= (htotal * vtotal);
1088
1089         viafb_second_xres = sec_var->xres;
1090         viafb_second_yres = sec_var->yres;
1091         viafb_second_virtual_xres = sec_var->xres_virtual;
1092         viafb_second_virtual_yres = sec_var->yres_virtual;
1093         viafb_bpp1 = sec_var->bits_per_pixel;
1094         viafb_refresh1 = viafb_get_refresh(sec_var->xres, sec_var->yres,
1095                 long_refresh);
1096 }
1097
1098 static int apply_device_setting(struct viafb_ioctl_setting setting_info,
1099         struct fb_info *info)
1100 {
1101         int need_set_mode = 0;
1102         DEBUG_MSG(KERN_INFO "apply_device_setting\n");
1103
1104         if (setting_info.device_flag) {
1105                 need_set_mode = 1;
1106                 check_available_device_to_enable(setting_info.device_status);
1107         }
1108
1109         /* Unlock LCD's operation according to LCD flag
1110            and check if the setting value is valid. */
1111         /* If the value is valid, apply the new setting value to the device. */
1112         if (viafb_LCD_ON) {
1113                 if (setting_info.lcd_operation_flag & OP_LCD_CENTERING) {
1114                         need_set_mode = 1;
1115                         if (setting_info.lcd_attributes.display_center) {
1116                                 /* Centering */
1117                                 viaparinfo->lvds_setting_info->display_method =
1118                                     LCD_CENTERING;
1119                                 viafb_lcd_dsp_method = LCD_CENTERING;
1120                                 viaparinfo->lvds_setting_info2->display_method =
1121                                     viafb_lcd_dsp_method = LCD_CENTERING;
1122                         } else {
1123                                 /* expandsion */
1124                                 viaparinfo->lvds_setting_info->display_method =
1125                                     LCD_EXPANDSION;
1126                                 viafb_lcd_dsp_method = LCD_EXPANDSION;
1127                                 viaparinfo->lvds_setting_info2->display_method =
1128                                     LCD_EXPANDSION;
1129                                 viafb_lcd_dsp_method = LCD_EXPANDSION;
1130                         }
1131                 }
1132
1133                 if (setting_info.lcd_operation_flag & OP_LCD_MODE) {
1134                         need_set_mode = 1;
1135                         if (setting_info.lcd_attributes.lcd_mode ==
1136                                 LCD_SPWG) {
1137                                 viaparinfo->lvds_setting_info->lcd_mode =
1138                                         viafb_lcd_mode = LCD_SPWG;
1139                         } else {
1140                                 viaparinfo->lvds_setting_info->lcd_mode =
1141                                         viafb_lcd_mode = LCD_OPENLDI;
1142                         }
1143                         viaparinfo->lvds_setting_info2->lcd_mode =
1144                             viaparinfo->lvds_setting_info->lcd_mode;
1145                 }
1146
1147                 if (setting_info.lcd_operation_flag & OP_LCD_PANEL_ID) {
1148                         need_set_mode = 1;
1149                         if (setting_info.lcd_attributes.panel_id <=
1150                             LCD_PANEL_ID_MAXIMUM) {
1151                                 viafb_lcd_panel_id =
1152                                     setting_info.lcd_attributes.panel_id;
1153                                 viafb_init_lcd_size();
1154                         }
1155                 }
1156         }
1157
1158         if (0 != (setting_info.samm_status & OP_SAMM)) {
1159                 setting_info.samm_status =
1160                     setting_info.samm_status & (~OP_SAMM);
1161                 if (setting_info.samm_status == 0
1162                     || setting_info.samm_status == 1) {
1163                         viafb_SAMM_ON = setting_info.samm_status;
1164
1165                         if (viafb_SAMM_ON)
1166                                 viafb_primary_dev = setting_info.primary_device;
1167
1168                         via_set_primary_address(0);
1169                         via_set_secondary_address(viafb_SAMM_ON ?
1170                                 viafb_second_offset : 0);
1171                         viafb_set_iga_path();
1172                 }
1173                 need_set_mode = 1;
1174         }
1175
1176         if (!need_set_mode) {
1177                 ;
1178         } else {
1179                 viafb_set_iga_path();
1180                 viafb_set_par(info);
1181         }
1182         return true;
1183 }
1184
1185 static void retrieve_device_setting(struct viafb_ioctl_setting
1186         *setting_info)
1187 {
1188
1189         /* get device status */
1190         if (viafb_CRT_ON == 1)
1191                 setting_info->device_status = CRT_Device;
1192         if (viafb_DVI_ON == 1)
1193                 setting_info->device_status |= DVI_Device;
1194         if (viafb_LCD_ON == 1)
1195                 setting_info->device_status |= LCD_Device;
1196         if (viafb_LCD2_ON == 1)
1197                 setting_info->device_status |= LCD2_Device;
1198
1199         setting_info->samm_status = viafb_SAMM_ON;
1200         setting_info->primary_device = get_primary_device();
1201
1202         setting_info->first_dev_bpp = viafb_bpp;
1203         setting_info->second_dev_bpp = viafb_bpp1;
1204
1205         setting_info->first_dev_refresh = viafb_refresh;
1206         setting_info->second_dev_refresh = viafb_refresh1;
1207
1208         setting_info->first_dev_hor_res = viafb_hotplug_Xres;
1209         setting_info->first_dev_ver_res = viafb_hotplug_Yres;
1210         setting_info->second_dev_hor_res = viafb_second_xres;
1211         setting_info->second_dev_ver_res = viafb_second_yres;
1212
1213         /* Get lcd attributes */
1214         setting_info->lcd_attributes.display_center = viafb_lcd_dsp_method;
1215         setting_info->lcd_attributes.panel_id = viafb_lcd_panel_id;
1216         setting_info->lcd_attributes.lcd_mode = viafb_lcd_mode;
1217 }
1218
1219 static int parse_active_dev(void)
1220 {
1221         viafb_CRT_ON = STATE_OFF;
1222         viafb_DVI_ON = STATE_OFF;
1223         viafb_LCD_ON = STATE_OFF;
1224         viafb_LCD2_ON = STATE_OFF;
1225         /* 1. Modify the active status of devices. */
1226         /* 2. Keep the order of devices, so we can set corresponding
1227            IGA path to devices in SAMM case. */
1228         /*    Note: The previous of active_dev is primary device,
1229            and the following is secondary device. */
1230         if (!viafb_active_dev) {
1231                 viafb_CRT_ON = STATE_ON;
1232                 viafb_SAMM_ON = STATE_OFF;
1233         } else if (!strcmp(viafb_active_dev, "CRT+DVI")) {
1234                 /* CRT+DVI */
1235                 viafb_CRT_ON = STATE_ON;
1236                 viafb_DVI_ON = STATE_ON;
1237                 viafb_primary_dev = CRT_Device;
1238         } else if (!strcmp(viafb_active_dev, "DVI+CRT")) {
1239                 /* DVI+CRT */
1240                 viafb_CRT_ON = STATE_ON;
1241                 viafb_DVI_ON = STATE_ON;
1242                 viafb_primary_dev = DVI_Device;
1243         } else if (!strcmp(viafb_active_dev, "CRT+LCD")) {
1244                 /* CRT+LCD */
1245                 viafb_CRT_ON = STATE_ON;
1246                 viafb_LCD_ON = STATE_ON;
1247                 viafb_primary_dev = CRT_Device;
1248         } else if (!strcmp(viafb_active_dev, "LCD+CRT")) {
1249                 /* LCD+CRT */
1250                 viafb_CRT_ON = STATE_ON;
1251                 viafb_LCD_ON = STATE_ON;
1252                 viafb_primary_dev = LCD_Device;
1253         } else if (!strcmp(viafb_active_dev, "DVI+LCD")) {
1254                 /* DVI+LCD */
1255                 viafb_DVI_ON = STATE_ON;
1256                 viafb_LCD_ON = STATE_ON;
1257                 viafb_primary_dev = DVI_Device;
1258         } else if (!strcmp(viafb_active_dev, "LCD+DVI")) {
1259                 /* LCD+DVI */
1260                 viafb_DVI_ON = STATE_ON;
1261                 viafb_LCD_ON = STATE_ON;
1262                 viafb_primary_dev = LCD_Device;
1263         } else if (!strcmp(viafb_active_dev, "LCD+LCD2")) {
1264                 viafb_LCD_ON = STATE_ON;
1265                 viafb_LCD2_ON = STATE_ON;
1266                 viafb_primary_dev = LCD_Device;
1267         } else if (!strcmp(viafb_active_dev, "LCD2+LCD")) {
1268                 viafb_LCD_ON = STATE_ON;
1269                 viafb_LCD2_ON = STATE_ON;
1270                 viafb_primary_dev = LCD2_Device;
1271         } else if (!strcmp(viafb_active_dev, "CRT")) {
1272                 /* CRT only */
1273                 viafb_CRT_ON = STATE_ON;
1274                 viafb_SAMM_ON = STATE_OFF;
1275         } else if (!strcmp(viafb_active_dev, "DVI")) {
1276                 /* DVI only */
1277                 viafb_DVI_ON = STATE_ON;
1278                 viafb_SAMM_ON = STATE_OFF;
1279         } else if (!strcmp(viafb_active_dev, "LCD")) {
1280                 /* LCD only */
1281                 viafb_LCD_ON = STATE_ON;
1282                 viafb_SAMM_ON = STATE_OFF;
1283         } else
1284                 return -EINVAL;
1285
1286         return 0;
1287 }
1288
1289 static int parse_port(char *opt_str, int *output_interface)
1290 {
1291         if (!strncmp(opt_str, "DVP0", 4))
1292                 *output_interface = INTERFACE_DVP0;
1293         else if (!strncmp(opt_str, "DVP1", 4))
1294                 *output_interface = INTERFACE_DVP1;
1295         else if (!strncmp(opt_str, "DFP_HIGHLOW", 11))
1296                 *output_interface = INTERFACE_DFP;
1297         else if (!strncmp(opt_str, "DFP_HIGH", 8))
1298                 *output_interface = INTERFACE_DFP_HIGH;
1299         else if (!strncmp(opt_str, "DFP_LOW", 7))
1300                 *output_interface = INTERFACE_DFP_LOW;
1301         else
1302                 *output_interface = INTERFACE_NONE;
1303         return 0;
1304 }
1305
1306 static void parse_lcd_port(void)
1307 {
1308         parse_port(viafb_lcd_port, &viaparinfo->chip_info->lvds_chip_info.
1309                 output_interface);
1310         /*Initialize to avoid unexpected behavior */
1311         viaparinfo->chip_info->lvds_chip_info2.output_interface =
1312         INTERFACE_NONE;
1313
1314         DEBUG_MSG(KERN_INFO "parse_lcd_port: viafb_lcd_port:%s,interface:%d\n",
1315                   viafb_lcd_port, viaparinfo->chip_info->lvds_chip_info.
1316                   output_interface);
1317 }
1318
1319 static void parse_dvi_port(void)
1320 {
1321         parse_port(viafb_dvi_port, &viaparinfo->chip_info->tmds_chip_info.
1322                 output_interface);
1323
1324         DEBUG_MSG(KERN_INFO "parse_dvi_port: viafb_dvi_port:%s,interface:%d\n",
1325                   viafb_dvi_port, viaparinfo->chip_info->tmds_chip_info.
1326                   output_interface);
1327 }
1328
1329 /*
1330  * The proc filesystem read/write function, a simple proc implement to
1331  * get/set the value of DPA  DVP0,   DVP0DataDriving,  DVP0ClockDriving, DVP1,
1332  * DVP1Driving, DFPHigh, DFPLow CR96,   SR2A[5], SR1B[1], SR2A[4], SR1E[2],
1333  * CR9B,    SR65,    CR97,    CR99
1334  */
1335 static int viafb_dvp0_proc_show(struct seq_file *m, void *v)
1336 {
1337         u8 dvp0_data_dri = 0, dvp0_clk_dri = 0, dvp0 = 0;
1338         dvp0_data_dri =
1339             (viafb_read_reg(VIASR, SR2A) & BIT5) >> 4 |
1340             (viafb_read_reg(VIASR, SR1B) & BIT1) >> 1;
1341         dvp0_clk_dri =
1342             (viafb_read_reg(VIASR, SR2A) & BIT4) >> 3 |
1343             (viafb_read_reg(VIASR, SR1E) & BIT2) >> 2;
1344         dvp0 = viafb_read_reg(VIACR, CR96) & 0x0f;
1345         seq_printf(m, "%x %x %x\n", dvp0, dvp0_data_dri, dvp0_clk_dri);
1346         return 0;
1347 }
1348
1349 static int viafb_dvp0_proc_open(struct inode *inode, struct file *file)
1350 {
1351         return single_open(file, viafb_dvp0_proc_show, NULL);
1352 }
1353
1354 static ssize_t viafb_dvp0_proc_write(struct file *file,
1355         const char __user *buffer, size_t count, loff_t *pos)
1356 {
1357         char buf[20], *value, *pbuf;
1358         u8 reg_val = 0;
1359         unsigned long length, i;
1360         if (count < 1)
1361                 return -EINVAL;
1362         length = count > 20 ? 20 : count;
1363         if (copy_from_user(&buf[0], buffer, length))
1364                 return -EFAULT;
1365         buf[length - 1] = '\0'; /*Ensure end string */
1366         pbuf = &buf[0];
1367         for (i = 0; i < 3; i++) {
1368                 value = strsep(&pbuf, " ");
1369                 if (value != NULL) {
1370                         strict_strtoul(value, 0, (unsigned long *)&reg_val);
1371                         DEBUG_MSG(KERN_INFO "DVP0:reg_val[%l]=:%x\n", i,
1372                                   reg_val);
1373                         switch (i) {
1374                         case 0:
1375                                 viafb_write_reg_mask(CR96, VIACR,
1376                                         reg_val, 0x0f);
1377                                 break;
1378                         case 1:
1379                                 viafb_write_reg_mask(SR2A, VIASR,
1380                                         reg_val << 4, BIT5);
1381                                 viafb_write_reg_mask(SR1B, VIASR,
1382                                         reg_val << 1, BIT1);
1383                                 break;
1384                         case 2:
1385                                 viafb_write_reg_mask(SR2A, VIASR,
1386                                         reg_val << 3, BIT4);
1387                                 viafb_write_reg_mask(SR1E, VIASR,
1388                                         reg_val << 2, BIT2);
1389                                 break;
1390                         default:
1391                                 break;
1392                         }
1393                 } else {
1394                         break;
1395                 }
1396         }
1397         return count;
1398 }
1399
1400 static const struct file_operations viafb_dvp0_proc_fops = {
1401         .owner          = THIS_MODULE,
1402         .open           = viafb_dvp0_proc_open,
1403         .read           = seq_read,
1404         .llseek         = seq_lseek,
1405         .release        = single_release,
1406         .write          = viafb_dvp0_proc_write,
1407 };
1408
1409 static int viafb_dvp1_proc_show(struct seq_file *m, void *v)
1410 {
1411         u8 dvp1 = 0, dvp1_data_dri = 0, dvp1_clk_dri = 0;
1412         dvp1 = viafb_read_reg(VIACR, CR9B) & 0x0f;
1413         dvp1_data_dri = (viafb_read_reg(VIASR, SR65) & 0x0c) >> 2;
1414         dvp1_clk_dri = viafb_read_reg(VIASR, SR65) & 0x03;
1415         seq_printf(m, "%x %x %x\n", dvp1, dvp1_data_dri, dvp1_clk_dri);
1416         return 0;
1417 }
1418
1419 static int viafb_dvp1_proc_open(struct inode *inode, struct file *file)
1420 {
1421         return single_open(file, viafb_dvp1_proc_show, NULL);
1422 }
1423
1424 static ssize_t viafb_dvp1_proc_write(struct file *file,
1425         const char __user *buffer, size_t count, loff_t *pos)
1426 {
1427         char buf[20], *value, *pbuf;
1428         u8 reg_val = 0;
1429         unsigned long length, i;
1430         if (count < 1)
1431                 return -EINVAL;
1432         length = count > 20 ? 20 : count;
1433         if (copy_from_user(&buf[0], buffer, length))
1434                 return -EFAULT;
1435         buf[length - 1] = '\0'; /*Ensure end string */
1436         pbuf = &buf[0];
1437         for (i = 0; i < 3; i++) {
1438                 value = strsep(&pbuf, " ");
1439                 if (value != NULL) {
1440                         strict_strtoul(value, 0, (unsigned long *)&reg_val);
1441                         switch (i) {
1442                         case 0:
1443                                 viafb_write_reg_mask(CR9B, VIACR,
1444                                         reg_val, 0x0f);
1445                                 break;
1446                         case 1:
1447                                 viafb_write_reg_mask(SR65, VIASR,
1448                                         reg_val << 2, 0x0c);
1449                                 break;
1450                         case 2:
1451                                 viafb_write_reg_mask(SR65, VIASR,
1452                                         reg_val, 0x03);
1453                                 break;
1454                         default:
1455                                 break;
1456                         }
1457                 } else {
1458                         break;
1459                 }
1460         }
1461         return count;
1462 }
1463
1464 static const struct file_operations viafb_dvp1_proc_fops = {
1465         .owner          = THIS_MODULE,
1466         .open           = viafb_dvp1_proc_open,
1467         .read           = seq_read,
1468         .llseek         = seq_lseek,
1469         .release        = single_release,
1470         .write          = viafb_dvp1_proc_write,
1471 };
1472
1473 static int viafb_dfph_proc_show(struct seq_file *m, void *v)
1474 {
1475         u8 dfp_high = 0;
1476         dfp_high = viafb_read_reg(VIACR, CR97) & 0x0f;
1477         seq_printf(m, "%x\n", dfp_high);
1478         return 0;
1479 }
1480
1481 static int viafb_dfph_proc_open(struct inode *inode, struct file *file)
1482 {
1483         return single_open(file, viafb_dfph_proc_show, NULL);
1484 }
1485
1486 static ssize_t viafb_dfph_proc_write(struct file *file,
1487         const char __user *buffer, size_t count, loff_t *pos)
1488 {
1489         char buf[20];
1490         u8 reg_val = 0;
1491         unsigned long length;
1492         if (count < 1)
1493                 return -EINVAL;
1494         length = count > 20 ? 20 : count;
1495         if (copy_from_user(&buf[0], buffer, length))
1496                 return -EFAULT;
1497         buf[length - 1] = '\0'; /*Ensure end string */
1498         strict_strtoul(&buf[0], 0, (unsigned long *)&reg_val);
1499         viafb_write_reg_mask(CR97, VIACR, reg_val, 0x0f);
1500         return count;
1501 }
1502
1503 static const struct file_operations viafb_dfph_proc_fops = {
1504         .owner          = THIS_MODULE,
1505         .open           = viafb_dfph_proc_open,
1506         .read           = seq_read,
1507         .llseek         = seq_lseek,
1508         .release        = single_release,
1509         .write          = viafb_dfph_proc_write,
1510 };
1511
1512 static int viafb_dfpl_proc_show(struct seq_file *m, void *v)
1513 {
1514         u8 dfp_low = 0;
1515         dfp_low = viafb_read_reg(VIACR, CR99) & 0x0f;
1516         seq_printf(m, "%x\n", dfp_low);
1517         return 0;
1518 }
1519
1520 static int viafb_dfpl_proc_open(struct inode *inode, struct file *file)
1521 {
1522         return single_open(file, viafb_dfpl_proc_show, NULL);
1523 }
1524
1525 static ssize_t viafb_dfpl_proc_write(struct file *file,
1526         const char __user *buffer, size_t count, loff_t *pos)
1527 {
1528         char buf[20];
1529         u8 reg_val = 0;
1530         unsigned long length;
1531         if (count < 1)
1532                 return -EINVAL;
1533         length = count > 20 ? 20 : count;
1534         if (copy_from_user(&buf[0], buffer, length))
1535                 return -EFAULT;
1536         buf[length - 1] = '\0'; /*Ensure end string */
1537         strict_strtoul(&buf[0], 0, (unsigned long *)&reg_val);
1538         viafb_write_reg_mask(CR99, VIACR, reg_val, 0x0f);
1539         return count;
1540 }
1541
1542 static const struct file_operations viafb_dfpl_proc_fops = {
1543         .owner          = THIS_MODULE,
1544         .open           = viafb_dfpl_proc_open,
1545         .read           = seq_read,
1546         .llseek         = seq_lseek,
1547         .release        = single_release,
1548         .write          = viafb_dfpl_proc_write,
1549 };
1550
1551 static int viafb_vt1636_proc_show(struct seq_file *m, void *v)
1552 {
1553         u8 vt1636_08 = 0, vt1636_09 = 0;
1554         switch (viaparinfo->chip_info->lvds_chip_info.lvds_chip_name) {
1555         case VT1636_LVDS:
1556                 vt1636_08 =
1557                     viafb_gpio_i2c_read_lvds(viaparinfo->lvds_setting_info,
1558                     &viaparinfo->chip_info->lvds_chip_info, 0x08) & 0x0f;
1559                 vt1636_09 =
1560                     viafb_gpio_i2c_read_lvds(viaparinfo->lvds_setting_info,
1561                     &viaparinfo->chip_info->lvds_chip_info, 0x09) & 0x1f;
1562                 seq_printf(m, "%x %x\n", vt1636_08, vt1636_09);
1563                 break;
1564         default:
1565                 break;
1566         }
1567         switch (viaparinfo->chip_info->lvds_chip_info2.lvds_chip_name) {
1568         case VT1636_LVDS:
1569                 vt1636_08 =
1570                     viafb_gpio_i2c_read_lvds(viaparinfo->lvds_setting_info2,
1571                         &viaparinfo->chip_info->lvds_chip_info2, 0x08) & 0x0f;
1572                 vt1636_09 =
1573                     viafb_gpio_i2c_read_lvds(viaparinfo->lvds_setting_info2,
1574                         &viaparinfo->chip_info->lvds_chip_info2, 0x09) & 0x1f;
1575                 seq_printf(m, " %x %x\n", vt1636_08, vt1636_09);
1576                 break;
1577         default:
1578                 break;
1579         }
1580         return 0;
1581 }
1582
1583 static int viafb_vt1636_proc_open(struct inode *inode, struct file *file)
1584 {
1585         return single_open(file, viafb_vt1636_proc_show, NULL);
1586 }
1587
1588 static ssize_t viafb_vt1636_proc_write(struct file *file,
1589         const char __user *buffer, size_t count, loff_t *pos)
1590 {
1591         char buf[30], *value, *pbuf;
1592         struct IODATA reg_val;
1593         unsigned long length, i;
1594         if (count < 1)
1595                 return -EINVAL;
1596         length = count > 30 ? 30 : count;
1597         if (copy_from_user(&buf[0], buffer, length))
1598                 return -EFAULT;
1599         buf[length - 1] = '\0'; /*Ensure end string */
1600         pbuf = &buf[0];
1601         switch (viaparinfo->chip_info->lvds_chip_info.lvds_chip_name) {
1602         case VT1636_LVDS:
1603                 for (i = 0; i < 2; i++) {
1604                         value = strsep(&pbuf, " ");
1605                         if (value != NULL) {
1606                                 strict_strtoul(value, 0,
1607                                         (unsigned long *)&reg_val.Data);
1608                                 switch (i) {
1609                                 case 0:
1610                                         reg_val.Index = 0x08;
1611                                         reg_val.Mask = 0x0f;
1612                                         viafb_gpio_i2c_write_mask_lvds
1613                                             (viaparinfo->lvds_setting_info,
1614                                             &viaparinfo->
1615                                             chip_info->lvds_chip_info,
1616                                              reg_val);
1617                                         break;
1618                                 case 1:
1619                                         reg_val.Index = 0x09;
1620                                         reg_val.Mask = 0x1f;
1621                                         viafb_gpio_i2c_write_mask_lvds
1622                                             (viaparinfo->lvds_setting_info,
1623                                             &viaparinfo->
1624                                             chip_info->lvds_chip_info,
1625                                              reg_val);
1626                                         break;
1627                                 default:
1628                                         break;
1629                                 }
1630                         } else {
1631                                 break;
1632                         }
1633                 }
1634                 break;
1635         default:
1636                 break;
1637         }
1638         switch (viaparinfo->chip_info->lvds_chip_info2.lvds_chip_name) {
1639         case VT1636_LVDS:
1640                 for (i = 0; i < 2; i++) {
1641                         value = strsep(&pbuf, " ");
1642                         if (value != NULL) {
1643                                 strict_strtoul(value, 0,
1644                                         (unsigned long *)&reg_val.Data);
1645                                 switch (i) {
1646                                 case 0:
1647                                         reg_val.Index = 0x08;
1648                                         reg_val.Mask = 0x0f;
1649                                         viafb_gpio_i2c_write_mask_lvds
1650                                             (viaparinfo->lvds_setting_info2,
1651                                             &viaparinfo->
1652                                             chip_info->lvds_chip_info2,
1653                                              reg_val);
1654                                         break;
1655                                 case 1:
1656                                         reg_val.Index = 0x09;
1657                                         reg_val.Mask = 0x1f;
1658                                         viafb_gpio_i2c_write_mask_lvds
1659                                             (viaparinfo->lvds_setting_info2,
1660                                             &viaparinfo->
1661                                             chip_info->lvds_chip_info2,
1662                                              reg_val);
1663                                         break;
1664                                 default:
1665                                         break;
1666                                 }
1667                         } else {
1668                                 break;
1669                         }
1670                 }
1671                 break;
1672         default:
1673                 break;
1674         }
1675         return count;
1676 }
1677
1678 static const struct file_operations viafb_vt1636_proc_fops = {
1679         .owner          = THIS_MODULE,
1680         .open           = viafb_vt1636_proc_open,
1681         .read           = seq_read,
1682         .llseek         = seq_lseek,
1683         .release        = single_release,
1684         .write          = viafb_vt1636_proc_write,
1685 };
1686
1687 static void viafb_init_proc(struct proc_dir_entry **viafb_entry)
1688 {
1689         *viafb_entry = proc_mkdir("viafb", NULL);
1690         if (*viafb_entry) {
1691                 proc_create("dvp0", 0, *viafb_entry, &viafb_dvp0_proc_fops);
1692                 proc_create("dvp1", 0, *viafb_entry, &viafb_dvp1_proc_fops);
1693                 proc_create("dfph", 0, *viafb_entry, &viafb_dfph_proc_fops);
1694                 proc_create("dfpl", 0, *viafb_entry, &viafb_dfpl_proc_fops);
1695                 if (VT1636_LVDS == viaparinfo->chip_info->lvds_chip_info.
1696                         lvds_chip_name || VT1636_LVDS ==
1697                     viaparinfo->chip_info->lvds_chip_info2.lvds_chip_name) {
1698                         proc_create("vt1636", 0, *viafb_entry, &viafb_vt1636_proc_fops);
1699                 }
1700
1701         }
1702 }
1703 static void viafb_remove_proc(struct proc_dir_entry *viafb_entry)
1704 {
1705         /* no problem if it was not registered */
1706         remove_proc_entry("dvp0", viafb_entry);/* parent dir */
1707         remove_proc_entry("dvp1", viafb_entry);
1708         remove_proc_entry("dfph", viafb_entry);
1709         remove_proc_entry("dfpl", viafb_entry);
1710         remove_proc_entry("vt1636", viafb_entry);
1711         remove_proc_entry("vt1625", viafb_entry);
1712         remove_proc_entry("viafb", NULL);
1713 }
1714
1715 static int parse_mode(const char *str, u32 *xres, u32 *yres)
1716 {
1717         char *ptr;
1718
1719         if (!str) {
1720                 *xres = 640;
1721                 *yres = 480;
1722                 return 0;
1723         }
1724
1725         *xres = simple_strtoul(str, &ptr, 10);
1726         if (ptr[0] != 'x')
1727                 return -EINVAL;
1728
1729         *yres = simple_strtoul(&ptr[1], &ptr, 10);
1730         if (ptr[0])
1731                 return -EINVAL;
1732
1733         return 0;
1734 }
1735
1736
1737 int __devinit via_fb_pci_probe(struct viafb_dev *vdev)
1738 {
1739         u32 default_xres, default_yres;
1740         struct VideoModeTable *vmode_entry;
1741         struct fb_var_screeninfo default_var;
1742         int rc;
1743         u32 viafb_par_length;
1744
1745         DEBUG_MSG(KERN_INFO "VIAFB PCI Probe!!\n");
1746         memset(&default_var, 0, sizeof(default_var));
1747         viafb_par_length = ALIGN(sizeof(struct viafb_par), BITS_PER_LONG/8);
1748
1749         /* Allocate fb_info and ***_par here, also including some other needed
1750          * variables
1751         */
1752         viafbinfo = framebuffer_alloc(viafb_par_length +
1753                 ALIGN(sizeof(struct viafb_shared), BITS_PER_LONG/8),
1754                 &vdev->pdev->dev);
1755         if (!viafbinfo) {
1756                 printk(KERN_ERR"Could not allocate memory for viafb_info.\n");
1757                 return -ENOMEM;
1758         }
1759
1760         viaparinfo = (struct viafb_par *)viafbinfo->par;
1761         viaparinfo->shared = viafbinfo->par + viafb_par_length;
1762         viaparinfo->shared->vdev = vdev;
1763         viaparinfo->vram_addr = 0;
1764         viaparinfo->tmds_setting_info = &viaparinfo->shared->tmds_setting_info;
1765         viaparinfo->lvds_setting_info = &viaparinfo->shared->lvds_setting_info;
1766         viaparinfo->lvds_setting_info2 =
1767                 &viaparinfo->shared->lvds_setting_info2;
1768         viaparinfo->crt_setting_info = &viaparinfo->shared->crt_setting_info;
1769         viaparinfo->chip_info = &viaparinfo->shared->chip_info;
1770
1771         if (viafb_dual_fb)
1772                 viafb_SAMM_ON = 1;
1773         parse_lcd_port();
1774         parse_dvi_port();
1775
1776         /* for dual-fb must viafb_SAMM_ON=1 and viafb_dual_fb=1 */
1777         if (!viafb_SAMM_ON)
1778                 viafb_dual_fb = 0;
1779
1780         viafb_init_chip_info(vdev->chip_type);
1781         /*
1782          * The framebuffer will have been successfully mapped by
1783          * the core (or we'd not be here), but we still need to
1784          * set up our own accounting.
1785          */
1786         viaparinfo->fbmem = vdev->fbmem_start;
1787         viaparinfo->memsize = vdev->fbmem_len;
1788         viaparinfo->fbmem_free = viaparinfo->memsize;
1789         viaparinfo->fbmem_used = 0;
1790         viafbinfo->screen_base = vdev->fbmem;
1791
1792         viafbinfo->fix.mmio_start = vdev->engine_start;
1793         viafbinfo->fix.mmio_len = vdev->engine_len;
1794         viafbinfo->node = 0;
1795         viafbinfo->fbops = &viafb_ops;
1796         viafbinfo->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN;
1797
1798         viafbinfo->pseudo_palette = pseudo_pal;
1799         if (viafb_accel && !viafb_init_engine(viafbinfo)) {
1800                 viafbinfo->flags |= FBINFO_HWACCEL_COPYAREA |
1801                         FBINFO_HWACCEL_FILLRECT |  FBINFO_HWACCEL_IMAGEBLIT;
1802                 default_var.accel_flags = FB_ACCELF_TEXT;
1803         } else {
1804                 viafbinfo->flags |= FBINFO_HWACCEL_DISABLED;
1805                 default_var.accel_flags = 0;
1806         }
1807
1808         if (viafb_second_size && (viafb_second_size < 8)) {
1809                 viafb_second_offset = viaparinfo->fbmem_free -
1810                         viafb_second_size * 1024 * 1024;
1811         } else {
1812                 viafb_second_size = 8;
1813                 viafb_second_offset = viaparinfo->fbmem_free -
1814                         viafb_second_size * 1024 * 1024;
1815         }
1816
1817         parse_mode(viafb_mode, &default_xres, &default_yres);
1818         vmode_entry = viafb_get_mode(default_xres, default_yres);
1819         if (viafb_SAMM_ON == 1) {
1820                 parse_mode(viafb_mode1, &viafb_second_xres,
1821                         &viafb_second_yres);
1822
1823                 if (0 == viafb_second_virtual_xres) {
1824                         switch (viafb_second_xres) {
1825                         case 1400:
1826                                 viafb_second_virtual_xres = 1408;
1827                                 break;
1828                         default:
1829                                 viafb_second_virtual_xres = viafb_second_xres;
1830                                 break;
1831                         }
1832                 }
1833                 if (0 == viafb_second_virtual_yres)
1834                         viafb_second_virtual_yres = viafb_second_yres;
1835         }
1836
1837         default_var.xres = default_xres;
1838         default_var.yres = default_yres;
1839         switch (default_xres) {
1840         case 1400:
1841                 default_var.xres_virtual = 1408;
1842                 break;
1843         default:
1844                 default_var.xres_virtual = default_xres;
1845                 break;
1846         }
1847         default_var.yres_virtual = default_yres;
1848         default_var.bits_per_pixel = viafb_bpp;
1849         default_var.pixclock =
1850             viafb_get_pixclock(default_xres, default_yres, viafb_refresh);
1851         default_var.left_margin = (default_xres >> 3) & 0xf8;
1852         default_var.right_margin = 32;
1853         default_var.upper_margin = 16;
1854         default_var.lower_margin = 4;
1855         default_var.hsync_len = default_var.left_margin;
1856         default_var.vsync_len = 4;
1857         viafb_setup_fixinfo(&viafbinfo->fix, viaparinfo);
1858         viafbinfo->var = default_var;
1859
1860         if (viafb_dual_fb) {
1861                 viafbinfo1 = framebuffer_alloc(viafb_par_length,
1862                                 &vdev->pdev->dev);
1863                 if (!viafbinfo1) {
1864                         printk(KERN_ERR
1865                         "allocate the second framebuffer struct error\n");
1866                         rc = -ENOMEM;
1867                         goto out_fb_release;
1868                 }
1869                 viaparinfo1 = viafbinfo1->par;
1870                 memcpy(viaparinfo1, viaparinfo, viafb_par_length);
1871                 viaparinfo1->vram_addr = viafb_second_offset;
1872                 viaparinfo1->memsize = viaparinfo->memsize -
1873                         viafb_second_offset;
1874                 viaparinfo->memsize = viafb_second_offset;
1875                 viaparinfo1->fbmem = viaparinfo->fbmem + viafb_second_offset;
1876
1877                 viaparinfo1->fbmem_used = viaparinfo->fbmem_used;
1878                 viaparinfo1->fbmem_free = viaparinfo1->memsize -
1879                         viaparinfo1->fbmem_used;
1880                 viaparinfo->fbmem_free = viaparinfo->memsize;
1881                 viaparinfo->fbmem_used = 0;
1882
1883                 viaparinfo->iga_path = IGA1;
1884                 viaparinfo1->iga_path = IGA2;
1885                 memcpy(viafbinfo1, viafbinfo, sizeof(struct fb_info));
1886                 viafbinfo1->par = viaparinfo1;
1887                 viafbinfo1->screen_base = viafbinfo->screen_base +
1888                         viafb_second_offset;
1889
1890                 default_var.xres = viafb_second_xres;
1891                 default_var.yres = viafb_second_yres;
1892                 default_var.xres_virtual = viafb_second_virtual_xres;
1893                 default_var.yres_virtual = viafb_second_virtual_yres;
1894                 default_var.bits_per_pixel = viafb_bpp1;
1895                 default_var.pixclock =
1896                     viafb_get_pixclock(viafb_second_xres, viafb_second_yres,
1897                     viafb_refresh);
1898                 default_var.left_margin = (viafb_second_xres >> 3) & 0xf8;
1899                 default_var.right_margin = 32;
1900                 default_var.upper_margin = 16;
1901                 default_var.lower_margin = 4;
1902                 default_var.hsync_len = default_var.left_margin;
1903                 default_var.vsync_len = 4;
1904
1905                 viafb_setup_fixinfo(&viafbinfo1->fix, viaparinfo1);
1906                 viafb_check_var(&default_var, viafbinfo1);
1907                 viafbinfo1->var = default_var;
1908                 viafb_update_fix(viafbinfo1);
1909                 viaparinfo1->depth = fb_get_color_depth(&viafbinfo1->var,
1910                         &viafbinfo1->fix);
1911         }
1912
1913         viafb_check_var(&viafbinfo->var, viafbinfo);
1914         viafb_update_fix(viafbinfo);
1915         viaparinfo->depth = fb_get_color_depth(&viafbinfo->var,
1916                 &viafbinfo->fix);
1917         default_var.activate = FB_ACTIVATE_NOW;
1918         rc = fb_alloc_cmap(&viafbinfo->cmap, 256, 0);
1919         if (rc)
1920                 goto out_fb1_release;
1921
1922         if (viafb_dual_fb && (viafb_primary_dev == LCD_Device)
1923             && (viaparinfo->chip_info->gfx_chip_name == UNICHROME_CLE266)) {
1924                 rc = register_framebuffer(viafbinfo1);
1925                 if (rc)
1926                         goto out_dealloc_cmap;
1927         }
1928         rc = register_framebuffer(viafbinfo);
1929         if (rc)
1930                 goto out_fb1_unreg_lcd_cle266;
1931
1932         if (viafb_dual_fb && ((viafb_primary_dev != LCD_Device)
1933                         || (viaparinfo->chip_info->gfx_chip_name !=
1934                         UNICHROME_CLE266))) {
1935                 rc = register_framebuffer(viafbinfo1);
1936                 if (rc)
1937                         goto out_fb_unreg;
1938         }
1939         DEBUG_MSG(KERN_INFO "fb%d: %s frame buffer device %dx%d-%dbpp\n",
1940                   viafbinfo->node, viafbinfo->fix.id, default_var.xres,
1941                   default_var.yres, default_var.bits_per_pixel);
1942
1943         viafb_init_proc(&viaparinfo->shared->proc_entry);
1944         viafb_init_dac(IGA2);
1945         return 0;
1946
1947 out_fb_unreg:
1948         unregister_framebuffer(viafbinfo);
1949 out_fb1_unreg_lcd_cle266:
1950         if (viafb_dual_fb && (viafb_primary_dev == LCD_Device)
1951             && (viaparinfo->chip_info->gfx_chip_name == UNICHROME_CLE266))
1952                 unregister_framebuffer(viafbinfo1);
1953 out_dealloc_cmap:
1954         fb_dealloc_cmap(&viafbinfo->cmap);
1955 out_fb1_release:
1956         if (viafbinfo1)
1957                 framebuffer_release(viafbinfo1);
1958 out_fb_release:
1959         framebuffer_release(viafbinfo);
1960         return rc;
1961 }
1962
1963 void __devexit via_fb_pci_remove(struct pci_dev *pdev)
1964 {
1965         DEBUG_MSG(KERN_INFO "via_pci_remove!\n");
1966         fb_dealloc_cmap(&viafbinfo->cmap);
1967         unregister_framebuffer(viafbinfo);
1968         if (viafb_dual_fb)
1969                 unregister_framebuffer(viafbinfo1);
1970
1971         framebuffer_release(viafbinfo);
1972         if (viafb_dual_fb)
1973                 framebuffer_release(viafbinfo1);
1974
1975         viafb_remove_proc(viaparinfo->shared->proc_entry);
1976 }
1977
1978 #ifndef MODULE
1979 static int __init viafb_setup(char *options)
1980 {
1981         char *this_opt;
1982         DEBUG_MSG(KERN_INFO "viafb_setup!\n");
1983
1984         if (!options || !*options)
1985                 return 0;
1986
1987         while ((this_opt = strsep(&options, ",")) != NULL) {
1988                 if (!*this_opt)
1989                         continue;
1990
1991                 if (!strncmp(this_opt, "viafb_mode1=", 12))
1992                         viafb_mode1 = kstrdup(this_opt + 12, GFP_KERNEL);
1993                 else if (!strncmp(this_opt, "viafb_mode=", 11))
1994                         viafb_mode = kstrdup(this_opt + 11, GFP_KERNEL);
1995                 else if (!strncmp(this_opt, "viafb_bpp1=", 11))
1996                         strict_strtoul(this_opt + 11, 0,
1997                                 (unsigned long *)&viafb_bpp1);
1998                 else if (!strncmp(this_opt, "viafb_bpp=", 10))
1999                         strict_strtoul(this_opt + 10, 0,
2000                                 (unsigned long *)&viafb_bpp);
2001                 else if (!strncmp(this_opt, "viafb_refresh1=", 15))
2002                         strict_strtoul(this_opt + 15, 0,
2003                                 (unsigned long *)&viafb_refresh1);
2004                 else if (!strncmp(this_opt, "viafb_refresh=", 14))
2005                         strict_strtoul(this_opt + 14, 0,
2006                                 (unsigned long *)&viafb_refresh);
2007                 else if (!strncmp(this_opt, "viafb_lcd_dsp_method=", 21))
2008                         strict_strtoul(this_opt + 21, 0,
2009                                 (unsigned long *)&viafb_lcd_dsp_method);
2010                 else if (!strncmp(this_opt, "viafb_lcd_panel_id=", 19))
2011                         strict_strtoul(this_opt + 19, 0,
2012                                 (unsigned long *)&viafb_lcd_panel_id);
2013                 else if (!strncmp(this_opt, "viafb_accel=", 12))
2014                         strict_strtoul(this_opt + 12, 0,
2015                                 (unsigned long *)&viafb_accel);
2016                 else if (!strncmp(this_opt, "viafb_SAMM_ON=", 14))
2017                         strict_strtoul(this_opt + 14, 0,
2018                                 (unsigned long *)&viafb_SAMM_ON);
2019                 else if (!strncmp(this_opt, "viafb_active_dev=", 17))
2020                         viafb_active_dev = kstrdup(this_opt + 17, GFP_KERNEL);
2021                 else if (!strncmp(this_opt,
2022                         "viafb_display_hardware_layout=", 30))
2023                         strict_strtoul(this_opt + 30, 0,
2024                         (unsigned long *)&viafb_display_hardware_layout);
2025                 else if (!strncmp(this_opt, "viafb_second_size=", 18))
2026                         strict_strtoul(this_opt + 18, 0,
2027                                 (unsigned long *)&viafb_second_size);
2028                 else if (!strncmp(this_opt,
2029                         "viafb_platform_epia_dvi=", 24))
2030                         strict_strtoul(this_opt + 24, 0,
2031                                 (unsigned long *)&viafb_platform_epia_dvi);
2032                 else if (!strncmp(this_opt,
2033                         "viafb_device_lcd_dualedge=", 26))
2034                         strict_strtoul(this_opt + 26, 0,
2035                                 (unsigned long *)&viafb_device_lcd_dualedge);
2036                 else if (!strncmp(this_opt, "viafb_bus_width=", 16))
2037                         strict_strtoul(this_opt + 16, 0,
2038                                 (unsigned long *)&viafb_bus_width);
2039                 else if (!strncmp(this_opt, "viafb_lcd_mode=", 15))
2040                         strict_strtoul(this_opt + 15, 0,
2041                                 (unsigned long *)&viafb_lcd_mode);
2042                 else if (!strncmp(this_opt, "viafb_lcd_port=", 15))
2043                         viafb_lcd_port = kstrdup(this_opt + 15, GFP_KERNEL);
2044                 else if (!strncmp(this_opt, "viafb_dvi_port=", 15))
2045                         viafb_dvi_port = kstrdup(this_opt + 15, GFP_KERNEL);
2046         }
2047         return 0;
2048 }
2049 #endif
2050
2051 /*
2052  * These are called out of via-core for now.
2053  */
2054 int __init viafb_init(void)
2055 {
2056         u32 dummy;
2057 #ifndef MODULE
2058         char *option = NULL;
2059         if (fb_get_options("viafb", &option))
2060                 return -ENODEV;
2061         viafb_setup(option);
2062 #endif
2063         if (parse_mode(viafb_mode, &dummy, &dummy)
2064                 || parse_mode(viafb_mode1, &dummy, &dummy)
2065                 || viafb_bpp < 0 || viafb_bpp > 32
2066                 || viafb_bpp1 < 0 || viafb_bpp1 > 32
2067                 || parse_active_dev())
2068                 return -EINVAL;
2069
2070         printk(KERN_INFO
2071        "VIA Graphics Intergration Chipset framebuffer %d.%d initializing\n",
2072                VERSION_MAJOR, VERSION_MINOR);
2073         return 0;
2074 }
2075
2076 void __exit viafb_exit(void)
2077 {
2078         DEBUG_MSG(KERN_INFO "viafb_exit!\n");
2079 }
2080
2081 static struct fb_ops viafb_ops = {
2082         .owner = THIS_MODULE,
2083         .fb_open = viafb_open,
2084         .fb_release = viafb_release,
2085         .fb_check_var = viafb_check_var,
2086         .fb_set_par = viafb_set_par,
2087         .fb_setcolreg = viafb_setcolreg,
2088         .fb_pan_display = viafb_pan_display,
2089         .fb_blank = viafb_blank,
2090         .fb_fillrect = viafb_fillrect,
2091         .fb_copyarea = viafb_copyarea,
2092         .fb_imageblit = viafb_imageblit,
2093         .fb_cursor = viafb_cursor,
2094         .fb_ioctl = viafb_ioctl,
2095         .fb_sync = viafb_sync,
2096 };
2097
2098
2099 #ifdef MODULE
2100 module_param(viafb_mode, charp, S_IRUSR);
2101 MODULE_PARM_DESC(viafb_mode, "Set resolution (default=640x480)");
2102
2103 module_param(viafb_mode1, charp, S_IRUSR);
2104 MODULE_PARM_DESC(viafb_mode1, "Set resolution (default=640x480)");
2105
2106 module_param(viafb_bpp, int, S_IRUSR);
2107 MODULE_PARM_DESC(viafb_bpp, "Set color depth (default=32bpp)");
2108
2109 module_param(viafb_bpp1, int, S_IRUSR);
2110 MODULE_PARM_DESC(viafb_bpp1, "Set color depth (default=32bpp)");
2111
2112 module_param(viafb_refresh, int, S_IRUSR);
2113 MODULE_PARM_DESC(viafb_refresh,
2114         "Set CRT viafb_refresh rate (default = 60)");
2115
2116 module_param(viafb_refresh1, int, S_IRUSR);
2117 MODULE_PARM_DESC(viafb_refresh1,
2118         "Set CRT refresh rate (default = 60)");
2119
2120 module_param(viafb_lcd_panel_id, int, S_IRUSR);
2121 MODULE_PARM_DESC(viafb_lcd_panel_id,
2122         "Set Flat Panel type(Default=1024x768)");
2123
2124 module_param(viafb_lcd_dsp_method, int, S_IRUSR);
2125 MODULE_PARM_DESC(viafb_lcd_dsp_method,
2126         "Set Flat Panel display scaling method.(Default=Expandsion)");
2127
2128 module_param(viafb_SAMM_ON, int, S_IRUSR);
2129 MODULE_PARM_DESC(viafb_SAMM_ON,
2130         "Turn on/off flag of SAMM(Default=OFF)");
2131
2132 module_param(viafb_accel, int, S_IRUSR);
2133 MODULE_PARM_DESC(viafb_accel,
2134         "Set 2D Hardware Acceleration: 0 = OFF, 1 = ON (default)");
2135
2136 module_param(viafb_active_dev, charp, S_IRUSR);
2137 MODULE_PARM_DESC(viafb_active_dev, "Specify active devices.");
2138
2139 module_param(viafb_display_hardware_layout, int, S_IRUSR);
2140 MODULE_PARM_DESC(viafb_display_hardware_layout,
2141         "Display Hardware Layout (LCD Only, DVI Only...,etc)");
2142
2143 module_param(viafb_second_size, int, S_IRUSR);
2144 MODULE_PARM_DESC(viafb_second_size,
2145         "Set secondary device memory size");
2146
2147 module_param(viafb_dual_fb, int, S_IRUSR);
2148 MODULE_PARM_DESC(viafb_dual_fb,
2149         "Turn on/off flag of dual framebuffer devices.(Default = OFF)");
2150
2151 module_param(viafb_platform_epia_dvi, int, S_IRUSR);
2152 MODULE_PARM_DESC(viafb_platform_epia_dvi,
2153         "Turn on/off flag of DVI devices on EPIA board.(Default = OFF)");
2154
2155 module_param(viafb_device_lcd_dualedge, int, S_IRUSR);
2156 MODULE_PARM_DESC(viafb_device_lcd_dualedge,
2157         "Turn on/off flag of dual edge panel.(Default = OFF)");
2158
2159 module_param(viafb_bus_width, int, S_IRUSR);
2160 MODULE_PARM_DESC(viafb_bus_width,
2161         "Set bus width of panel.(Default = 12)");
2162
2163 module_param(viafb_lcd_mode, int, S_IRUSR);
2164 MODULE_PARM_DESC(viafb_lcd_mode,
2165         "Set Flat Panel mode(Default=OPENLDI)");
2166
2167 module_param(viafb_lcd_port, charp, S_IRUSR);
2168 MODULE_PARM_DESC(viafb_lcd_port, "Specify LCD output port.");
2169
2170 module_param(viafb_dvi_port, charp, S_IRUSR);
2171 MODULE_PARM_DESC(viafb_dvi_port, "Specify DVI output port.");
2172
2173 MODULE_LICENSE("GPL");
2174 #endif