drivers/video/via/viafbdev.c

   1 /*
   2  * Copyright 1998-2008 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/slab.h>
  25 #include <linux/stat.h>
  26 #define _MASTER_FILE
  27
  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->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                 viafb_set_primary_address(vram_addr);
 321                 viafb_set_secondary_address(vram_addr);
 322         } else if (viapar->iga_path == IGA1)
 323                 viafb_set_primary_address(vram_addr);
 324         else
 325                 viafb_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->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->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->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->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         viafb_set_primary_address(0);
1022         viafb_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                         viafb_set_primary_address(0);
1169                         viafb_set_secondary_address(viafb_SAMM_ON ? viafb_second_offset : 0);
1170                         viafb_set_iga_path();
1171                 }
1172                 need_set_mode = 1;
1173         }
1174
1175         if (!need_set_mode) {
1176                 ;
1177         } else {
1178                 viafb_set_iga_path();
1179                 viafb_set_par(info);
1180         }
1181         return true;
1182 }
1183
1184 static void retrieve_device_setting(struct viafb_ioctl_setting
1185         *setting_info)
1186 {
1187
1188         /* get device status */
1189         if (viafb_CRT_ON == 1)
1190                 setting_info->device_status = CRT_Device;
1191         if (viafb_DVI_ON == 1)
1192                 setting_info->device_status |= DVI_Device;
1193         if (viafb_LCD_ON == 1)
1194                 setting_info->device_status |= LCD_Device;
1195         if (viafb_LCD2_ON == 1)
1196                 setting_info->device_status |= LCD2_Device;
1197
1198         setting_info->samm_status = viafb_SAMM_ON;
1199         setting_info->primary_device = get_primary_device();
1200
1201         setting_info->first_dev_bpp = viafb_bpp;
1202         setting_info->second_dev_bpp = viafb_bpp1;
1203
1204         setting_info->first_dev_refresh = viafb_refresh;
1205         setting_info->second_dev_refresh = viafb_refresh1;
1206
1207         setting_info->first_dev_hor_res = viafb_hotplug_Xres;
1208         setting_info->first_dev_ver_res = viafb_hotplug_Yres;
1209         setting_info->second_dev_hor_res = viafb_second_xres;
1210         setting_info->second_dev_ver_res = viafb_second_yres;
1211
1212         /* Get lcd attributes */
1213         setting_info->lcd_attributes.display_center = viafb_lcd_dsp_method;
1214         setting_info->lcd_attributes.panel_id = viafb_lcd_panel_id;
1215         setting_info->lcd_attributes.lcd_mode = viafb_lcd_mode;
1216 }
1217
1218 static int parse_active_dev(void)
1219 {
1220         viafb_CRT_ON = STATE_OFF;
1221         viafb_DVI_ON = STATE_OFF;
1222         viafb_LCD_ON = STATE_OFF;
1223         viafb_LCD2_ON = STATE_OFF;
1224         /* 1. Modify the active status of devices. */
1225         /* 2. Keep the order of devices, so we can set corresponding
1226            IGA path to devices in SAMM case. */
1227         /*    Note: The previous of active_dev is primary device,
1228            and the following is secondary device. */
1229         if (!viafb_active_dev) {
1230                 viafb_CRT_ON = STATE_ON;
1231                 viafb_SAMM_ON = STATE_OFF;
1232         } else if (!strcmp(viafb_active_dev, "CRT+DVI")) {
1233                 /* CRT+DVI */
1234                 viafb_CRT_ON = STATE_ON;
1235                 viafb_DVI_ON = STATE_ON;
1236                 viafb_primary_dev = CRT_Device;
1237         } else if (!strcmp(viafb_active_dev, "DVI+CRT")) {
1238                 /* DVI+CRT */
1239                 viafb_CRT_ON = STATE_ON;
1240                 viafb_DVI_ON = STATE_ON;
1241                 viafb_primary_dev = DVI_Device;
1242         } else if (!strcmp(viafb_active_dev, "CRT+LCD")) {
1243                 /* CRT+LCD */
1244                 viafb_CRT_ON = STATE_ON;
1245                 viafb_LCD_ON = STATE_ON;
1246                 viafb_primary_dev = CRT_Device;
1247         } else if (!strcmp(viafb_active_dev, "LCD+CRT")) {
1248                 /* LCD+CRT */
1249                 viafb_CRT_ON = STATE_ON;
1250                 viafb_LCD_ON = STATE_ON;
1251                 viafb_primary_dev = LCD_Device;
1252         } else if (!strcmp(viafb_active_dev, "DVI+LCD")) {
1253                 /* DVI+LCD */
1254                 viafb_DVI_ON = STATE_ON;
1255                 viafb_LCD_ON = STATE_ON;
1256                 viafb_primary_dev = DVI_Device;
1257         } else if (!strcmp(viafb_active_dev, "LCD+DVI")) {
1258                 /* LCD+DVI */
1259                 viafb_DVI_ON = STATE_ON;
1260                 viafb_LCD_ON = STATE_ON;
1261                 viafb_primary_dev = LCD_Device;
1262         } else if (!strcmp(viafb_active_dev, "LCD+LCD2")) {
1263                 viafb_LCD_ON = STATE_ON;
1264                 viafb_LCD2_ON = STATE_ON;
1265                 viafb_primary_dev = LCD_Device;
1266         } else if (!strcmp(viafb_active_dev, "LCD2+LCD")) {
1267                 viafb_LCD_ON = STATE_ON;
1268                 viafb_LCD2_ON = STATE_ON;
1269                 viafb_primary_dev = LCD2_Device;
1270         } else if (!strcmp(viafb_active_dev, "CRT")) {
1271                 /* CRT only */
1272                 viafb_CRT_ON = STATE_ON;
1273                 viafb_SAMM_ON = STATE_OFF;
1274         } else if (!strcmp(viafb_active_dev, "DVI")) {
1275                 /* DVI only */
1276                 viafb_DVI_ON = STATE_ON;
1277                 viafb_SAMM_ON = STATE_OFF;
1278         } else if (!strcmp(viafb_active_dev, "LCD")) {
1279                 /* LCD only */
1280                 viafb_LCD_ON = STATE_ON;
1281                 viafb_SAMM_ON = STATE_OFF;
1282         } else
1283                 return -EINVAL;
1284
1285         return 0;
1286 }
1287
1288 static int parse_port(char *opt_str, int *output_interface)
1289 {
1290         if (!strncmp(opt_str, "DVP0", 4))
1291                 *output_interface = INTERFACE_DVP0;
1292         else if (!strncmp(opt_str, "DVP1", 4))
1293                 *output_interface = INTERFACE_DVP1;
1294         else if (!strncmp(opt_str, "DFP_HIGHLOW", 11))
1295                 *output_interface = INTERFACE_DFP;
1296         else if (!strncmp(opt_str, "DFP_HIGH", 8))
1297                 *output_interface = INTERFACE_DFP_HIGH;
1298         else if (!strncmp(opt_str, "DFP_LOW", 7))
1299                 *output_interface = INTERFACE_DFP_LOW;
1300         else
1301                 *output_interface = INTERFACE_NONE;
1302         return 0;
1303 }
1304
1305 static void parse_lcd_port(void)
1306 {
1307         parse_port(viafb_lcd_port, &viaparinfo->chip_info->lvds_chip_info.
1308                 output_interface);
1309         /*Initialize to avoid unexpected behavior */
1310         viaparinfo->chip_info->lvds_chip_info2.output_interface =
1311         INTERFACE_NONE;
1312
1313         DEBUG_MSG(KERN_INFO "parse_lcd_port: viafb_lcd_port:%s,interface:%d\n",
1314                   viafb_lcd_port, viaparinfo->chip_info->lvds_chip_info.
1315                   output_interface);
1316 }
1317
1318 static void parse_dvi_port(void)
1319 {
1320         parse_port(viafb_dvi_port, &viaparinfo->chip_info->tmds_chip_info.
1321                 output_interface);
1322
1323         DEBUG_MSG(KERN_INFO "parse_dvi_port: viafb_dvi_port:%s,interface:%d\n",
1324                   viafb_dvi_port, viaparinfo->chip_info->tmds_chip_info.
1325                   output_interface);
1326 }
1327
1328 /*
1329  * The proc filesystem read/write function, a simple proc implement to
1330  * get/set the value of DPA  DVP0,   DVP0DataDriving,  DVP0ClockDriving, DVP1,
1331  * DVP1Driving, DFPHigh, DFPLow CR96,   SR2A[5], SR1B[1], SR2A[4], SR1E[2],
1332  * CR9B,    SR65,    CR97,    CR99
1333  */
1334 static int viafb_dvp0_proc_show(struct seq_file *m, void *v)
1335 {
1336         u8 dvp0_data_dri = 0, dvp0_clk_dri = 0, dvp0 = 0;
1337         dvp0_data_dri =
1338             (viafb_read_reg(VIASR, SR2A) & BIT5) >> 4 |
1339             (viafb_read_reg(VIASR, SR1B) & BIT1) >> 1;
1340         dvp0_clk_dri =
1341             (viafb_read_reg(VIASR, SR2A) & BIT4) >> 3 |
1342             (viafb_read_reg(VIASR, SR1E) & BIT2) >> 2;
1343         dvp0 = viafb_read_reg(VIACR, CR96) & 0x0f;
1344         seq_printf(m, "%x %x %x\n", dvp0, dvp0_data_dri, dvp0_clk_dri);
1345         return 0;
1346 }
1347
1348 static int viafb_dvp0_proc_open(struct inode *inode, struct file *file)
1349 {
1350         return single_open(file, viafb_dvp0_proc_show, NULL);
1351 }
1352
1353 static ssize_t viafb_dvp0_proc_write(struct file *file,
1354         const char __user *buffer, size_t count, loff_t *pos)
1355 {
1356         char buf[20], *value, *pbuf;
1357         u8 reg_val = 0;
1358         unsigned long length, i;
1359         if (count < 1)
1360                 return -EINVAL;
1361         length = count > 20 ? 20 : count;
1362         if (copy_from_user(&buf[0], buffer, length))
1363                 return -EFAULT;
1364         buf[length - 1] = '\0'; /*Ensure end string */
1365         pbuf = &buf[0];
1366         for (i = 0; i < 3; i++) {
1367                 value = strsep(&pbuf, " ");
1368                 if (value != NULL) {
1369                         strict_strtoul(value, 0, (unsigned long *)&reg_val);
1370                         DEBUG_MSG(KERN_INFO "DVP0:reg_val[%l]=:%x\n", i,
1371                                   reg_val);
1372                         switch (i) {
1373                         case 0:
1374                                 viafb_write_reg_mask(CR96, VIACR,
1375                                         reg_val, 0x0f);
1376                                 break;
1377                         case 1:
1378                                 viafb_write_reg_mask(SR2A, VIASR,
1379                                         reg_val << 4, BIT5);
1380                                 viafb_write_reg_mask(SR1B, VIASR,
1381                                         reg_val << 1, BIT1);
1382                                 break;
1383                         case 2:
1384                                 viafb_write_reg_mask(SR2A, VIASR,
1385                                         reg_val << 3, BIT4);
1386                                 viafb_write_reg_mask(SR1E, VIASR,
1387                                         reg_val << 2, BIT2);
1388                                 break;
1389                         default:
1390                                 break;
1391                         }
1392                 } else {
1393                         break;
1394                 }
1395         }
1396         return count;
1397 }
1398
1399 static const struct file_operations viafb_dvp0_proc_fops = {
1400         .owner          = THIS_MODULE,
1401         .open           = viafb_dvp0_proc_open,
1402         .read           = seq_read,
1403         .llseek         = seq_lseek,
1404         .release        = single_release,
1405         .write          = viafb_dvp0_proc_write,
1406 };
1407
1408 static int viafb_dvp1_proc_show(struct seq_file *m, void *v)
1409 {
1410         u8 dvp1 = 0, dvp1_data_dri = 0, dvp1_clk_dri = 0;
1411         dvp1 = viafb_read_reg(VIACR, CR9B) & 0x0f;
1412         dvp1_data_dri = (viafb_read_reg(VIASR, SR65) & 0x0c) >> 2;
1413         dvp1_clk_dri = viafb_read_reg(VIASR, SR65) & 0x03;
1414         seq_printf(m, "%x %x %x\n", dvp1, dvp1_data_dri, dvp1_clk_dri);
1415         return 0;
1416 }
1417
1418 static int viafb_dvp1_proc_open(struct inode *inode, struct file *file)
1419 {
1420         return single_open(file, viafb_dvp1_proc_show, NULL);
1421 }
1422
1423 static ssize_t viafb_dvp1_proc_write(struct file *file,
1424         const char __user *buffer, size_t count, loff_t *pos)
1425 {
1426         char buf[20], *value, *pbuf;
1427         u8 reg_val = 0;
1428         unsigned long length, i;
1429         if (count < 1)
1430                 return -EINVAL;
1431         length = count > 20 ? 20 : count;
1432         if (copy_from_user(&buf[0], buffer, length))
1433                 return -EFAULT;
1434         buf[length - 1] = '\0'; /*Ensure end string */
1435         pbuf = &buf[0];
1436         for (i = 0; i < 3; i++) {
1437                 value = strsep(&pbuf, " ");
1438                 if (value != NULL) {
1439                         strict_strtoul(value, 0, (unsigned long *)&reg_val);
1440                         switch (i) {
1441                         case 0:
1442                                 viafb_write_reg_mask(CR9B, VIACR,
1443                                         reg_val, 0x0f);
1444                                 break;
1445                         case 1:
1446                                 viafb_write_reg_mask(SR65, VIASR,
1447                                         reg_val << 2, 0x0c);
1448                                 break;
1449                         case 2:
1450                                 viafb_write_reg_mask(SR65, VIASR,
1451                                         reg_val, 0x03);
1452                                 break;
1453                         default:
1454                                 break;
1455                         }
1456                 } else {
1457                         break;
1458                 }
1459         }
1460         return count;
1461 }
1462
1463 static const struct file_operations viafb_dvp1_proc_fops = {
1464         .owner          = THIS_MODULE,
1465         .open           = viafb_dvp1_proc_open,
1466         .read           = seq_read,
1467         .llseek         = seq_lseek,
1468         .release        = single_release,
1469         .write          = viafb_dvp1_proc_write,
1470 };
1471
1472 static int viafb_dfph_proc_show(struct seq_file *m, void *v)
1473 {
1474         u8 dfp_high = 0;
1475         dfp_high = viafb_read_reg(VIACR, CR97) & 0x0f;
1476         seq_printf(m, "%x\n", dfp_high);
1477         return 0;
1478 }
1479
1480 static int viafb_dfph_proc_open(struct inode *inode, struct file *file)
1481 {
1482         return single_open(file, viafb_dfph_proc_show, NULL);
1483 }
1484
1485 static ssize_t viafb_dfph_proc_write(struct file *file,
1486         const char __user *buffer, size_t count, loff_t *pos)
1487 {
1488         char buf[20];
1489         u8 reg_val = 0;
1490         unsigned long length;
1491         if (count < 1)
1492                 return -EINVAL;
1493         length = count > 20 ? 20 : count;
1494         if (copy_from_user(&buf[0], buffer, length))
1495                 return -EFAULT;
1496         buf[length - 1] = '\0'; /*Ensure end string */
1497         strict_strtoul(&buf[0], 0, (unsigned long *)&reg_val);
1498         viafb_write_reg_mask(CR97, VIACR, reg_val, 0x0f);
1499         return count;
1500 }
1501
1502 static const struct file_operations viafb_dfph_proc_fops = {
1503         .owner          = THIS_MODULE,
1504         .open           = viafb_dfph_proc_open,
1505         .read           = seq_read,
1506         .llseek         = seq_lseek,
1507         .release        = single_release,
1508         .write          = viafb_dfph_proc_write,
1509 };
1510
1511 static int viafb_dfpl_proc_show(struct seq_file *m, void *v)
1512 {
1513         u8 dfp_low = 0;
1514         dfp_low = viafb_read_reg(VIACR, CR99) & 0x0f;
1515         seq_printf(m, "%x\n", dfp_low);
1516         return 0;
1517 }
1518
1519 static int viafb_dfpl_proc_open(struct inode *inode, struct file *file)
1520 {
1521         return single_open(file, viafb_dfpl_proc_show, NULL);
1522 }
1523
1524 static ssize_t viafb_dfpl_proc_write(struct file *file,
1525         const char __user *buffer, size_t count, loff_t *pos)
1526 {
1527         char buf[20];
1528         u8 reg_val = 0;
1529         unsigned long length;
1530         if (count < 1)
1531                 return -EINVAL;
1532         length = count > 20 ? 20 : count;
1533         if (copy_from_user(&buf[0], buffer, length))
1534                 return -EFAULT;
1535         buf[length - 1] = '\0'; /*Ensure end string */
1536         strict_strtoul(&buf[0], 0, (unsigned long *)&reg_val);
1537         viafb_write_reg_mask(CR99, VIACR, reg_val, 0x0f);
1538         return count;
1539 }
1540
1541 static const struct file_operations viafb_dfpl_proc_fops = {
1542         .owner          = THIS_MODULE,
1543         .open           = viafb_dfpl_proc_open,
1544         .read           = seq_read,
1545         .llseek         = seq_lseek,
1546         .release        = single_release,
1547         .write          = viafb_dfpl_proc_write,
1548 };
1549
1550 static int viafb_vt1636_proc_show(struct seq_file *m, void *v)
1551 {
1552         u8 vt1636_08 = 0, vt1636_09 = 0;
1553         switch (viaparinfo->chip_info->lvds_chip_info.lvds_chip_name) {
1554         case VT1636_LVDS:
1555                 vt1636_08 =
1556                     viafb_gpio_i2c_read_lvds(viaparinfo->lvds_setting_info,
1557                     &viaparinfo->chip_info->lvds_chip_info, 0x08) & 0x0f;
1558                 vt1636_09 =
1559                     viafb_gpio_i2c_read_lvds(viaparinfo->lvds_setting_info,
1560                     &viaparinfo->chip_info->lvds_chip_info, 0x09) & 0x1f;
1561                 seq_printf(m, "%x %x\n", vt1636_08, vt1636_09);
1562                 break;
1563         default:
1564                 break;
1565         }
1566         switch (viaparinfo->chip_info->lvds_chip_info2.lvds_chip_name) {
1567         case VT1636_LVDS:
1568                 vt1636_08 =
1569                     viafb_gpio_i2c_read_lvds(viaparinfo->lvds_setting_info2,
1570                         &viaparinfo->chip_info->lvds_chip_info2, 0x08) & 0x0f;
1571                 vt1636_09 =
1572                     viafb_gpio_i2c_read_lvds(viaparinfo->lvds_setting_info2,
1573                         &viaparinfo->chip_info->lvds_chip_info2, 0x09) & 0x1f;
1574                 seq_printf(m, " %x %x\n", vt1636_08, vt1636_09);
1575                 break;
1576         default:
1577                 break;
1578         }
1579         return 0;
1580 }
1581
1582 static int viafb_vt1636_proc_open(struct inode *inode, struct file *file)
1583 {
1584         return single_open(file, viafb_vt1636_proc_show, NULL);
1585 }
1586
1587 static ssize_t viafb_vt1636_proc_write(struct file *file,
1588         const char __user *buffer, size_t count, loff_t *pos)
1589 {
1590         char buf[30], *value, *pbuf;
1591         struct IODATA reg_val;
1592         unsigned long length, i;
1593         if (count < 1)
1594                 return -EINVAL;
1595         length = count > 30 ? 30 : count;
1596         if (copy_from_user(&buf[0], buffer, length))
1597                 return -EFAULT;
1598         buf[length - 1] = '\0'; /*Ensure end string */
1599         pbuf = &buf[0];
1600         switch (viaparinfo->chip_info->lvds_chip_info.lvds_chip_name) {
1601         case VT1636_LVDS:
1602                 for (i = 0; i < 2; i++) {
1603                         value = strsep(&pbuf, " ");
1604                         if (value != NULL) {
1605                                 strict_strtoul(value, 0,
1606                                         (unsigned long *)&reg_val.Data);
1607                                 switch (i) {
1608                                 case 0:
1609                                         reg_val.Index = 0x08;
1610                                         reg_val.Mask = 0x0f;
1611                                         viafb_gpio_i2c_write_mask_lvds
1612                                             (viaparinfo->lvds_setting_info,
1613                                             &viaparinfo->
1614                                             chip_info->lvds_chip_info,
1615                                              reg_val);
1616                                         break;
1617                                 case 1:
1618                                         reg_val.Index = 0x09;
1619                                         reg_val.Mask = 0x1f;
1620                                         viafb_gpio_i2c_write_mask_lvds
1621                                             (viaparinfo->lvds_setting_info,
1622                                             &viaparinfo->
1623                                             chip_info->lvds_chip_info,
1624                                              reg_val);
1625                                         break;
1626                                 default:
1627                                         break;
1628                                 }
1629                         } else {
1630                                 break;
1631                         }
1632                 }
1633                 break;
1634         default:
1635                 break;
1636         }
1637         switch (viaparinfo->chip_info->lvds_chip_info2.lvds_chip_name) {
1638         case VT1636_LVDS:
1639                 for (i = 0; i < 2; i++) {
1640                         value = strsep(&pbuf, " ");
1641                         if (value != NULL) {
1642                                 strict_strtoul(value, 0,
1643                                         (unsigned long *)&reg_val.Data);
1644                                 switch (i) {
1645                                 case 0:
1646                                         reg_val.Index = 0x08;
1647                                         reg_val.Mask = 0x0f;
1648                                         viafb_gpio_i2c_write_mask_lvds
1649                                             (viaparinfo->lvds_setting_info2,
1650                                             &viaparinfo->
1651                                             chip_info->lvds_chip_info2,
1652                                              reg_val);
1653                                         break;
1654                                 case 1:
1655                                         reg_val.Index = 0x09;
1656                                         reg_val.Mask = 0x1f;
1657                                         viafb_gpio_i2c_write_mask_lvds
1658                                             (viaparinfo->lvds_setting_info2,
1659                                             &viaparinfo->
1660                                             chip_info->lvds_chip_info2,
1661                                              reg_val);
1662                                         break;
1663                                 default:
1664                                         break;
1665                                 }
1666                         } else {
1667                                 break;
1668                         }
1669                 }
1670                 break;
1671         default:
1672                 break;
1673         }
1674         return count;
1675 }
1676
1677 static const struct file_operations viafb_vt1636_proc_fops = {
1678         .owner          = THIS_MODULE,
1679         .open           = viafb_vt1636_proc_open,
1680         .read           = seq_read,
1681         .llseek         = seq_lseek,
1682         .release        = single_release,
1683         .write          = viafb_vt1636_proc_write,
1684 };
1685
1686 static void viafb_init_proc(struct proc_dir_entry **viafb_entry)
1687 {
1688         *viafb_entry = proc_mkdir("viafb", NULL);
1689         if (*viafb_entry) {
1690                 proc_create("dvp0", 0, *viafb_entry, &viafb_dvp0_proc_fops);
1691                 proc_create("dvp1", 0, *viafb_entry, &viafb_dvp1_proc_fops);
1692                 proc_create("dfph", 0, *viafb_entry, &viafb_dfph_proc_fops);
1693                 proc_create("dfpl", 0, *viafb_entry, &viafb_dfpl_proc_fops);
1694                 if (VT1636_LVDS == viaparinfo->chip_info->lvds_chip_info.
1695                         lvds_chip_name || VT1636_LVDS ==
1696                     viaparinfo->chip_info->lvds_chip_info2.lvds_chip_name) {
1697                         proc_create("vt1636", 0, *viafb_entry, &viafb_vt1636_proc_fops);
1698                 }
1699
1700         }
1701 }
1702 static void viafb_remove_proc(struct proc_dir_entry *viafb_entry)
1703 {
1704         /* no problem if it was not registered */
1705         remove_proc_entry("dvp0", viafb_entry);/* parent dir */
1706         remove_proc_entry("dvp1", viafb_entry);
1707         remove_proc_entry("dfph", viafb_entry);
1708         remove_proc_entry("dfpl", viafb_entry);
1709         remove_proc_entry("vt1636", viafb_entry);
1710         remove_proc_entry("vt1625", viafb_entry);
1711         remove_proc_entry("viafb", NULL);
1712 }
1713
1714 static int parse_mode(const char *str, u32 *xres, u32 *yres)
1715 {
1716         char *ptr;
1717
1718         if (!str) {
1719                 *xres = 640;
1720                 *yres = 480;
1721                 return 0;
1722         }
1723
1724         *xres = simple_strtoul(str, &ptr, 10);
1725         if (ptr[0] != 'x')
1726                 return -EINVAL;
1727
1728         *yres = simple_strtoul(&ptr[1], &ptr, 10);
1729         if (ptr[0])
1730                 return -EINVAL;
1731
1732         return 0;
1733 }
1734
1735 static int __devinit via_pci_probe(struct pci_dev *pdev,
1736                                    const struct pci_device_id *ent)
1737 {
1738         u32 default_xres, default_yres;
1739         struct VideoModeTable *vmode_entry;
1740         struct fb_var_screeninfo default_var;
1741         u32 viafb_par_length;
1742
1743         DEBUG_MSG(KERN_INFO "VIAFB PCI Probe!!\n");
1744         memset(&default_var, 0, sizeof(default_var));
1745         viafb_par_length = ALIGN(sizeof(struct viafb_par), BITS_PER_LONG/8);
1746
1747         /* Allocate fb_info and ***_par here, also including some other needed
1748          * variables
1749         */
1750         viafbinfo = framebuffer_alloc(viafb_par_length +
1751                 ALIGN(sizeof(struct viafb_shared), BITS_PER_LONG/8),
1752                 &pdev->dev);
1753         if (!viafbinfo) {
1754                 printk(KERN_ERR"Could not allocate memory for viafb_info.\n");
1755                 return -ENODEV;
1756         }
1757
1758         viaparinfo = (struct viafb_par *)viafbinfo->par;
1759         viaparinfo->shared = viafbinfo->par + viafb_par_length;
1760         viaparinfo->vram_addr = 0;
1761         viaparinfo->tmds_setting_info = &viaparinfo->shared->tmds_setting_info;
1762         viaparinfo->lvds_setting_info = &viaparinfo->shared->lvds_setting_info;
1763         viaparinfo->lvds_setting_info2 =
1764                 &viaparinfo->shared->lvds_setting_info2;
1765         viaparinfo->crt_setting_info = &viaparinfo->shared->crt_setting_info;
1766         viaparinfo->chip_info = &viaparinfo->shared->chip_info;
1767
1768         if (viafb_dual_fb)
1769                 viafb_SAMM_ON = 1;
1770         parse_lcd_port();
1771         parse_dvi_port();
1772
1773         /* for dual-fb must viafb_SAMM_ON=1 and viafb_dual_fb=1 */
1774         if (!viafb_SAMM_ON)
1775                 viafb_dual_fb = 0;
1776
1777         /* Set up I2C bus stuff */
1778         viafb_create_i2c_bus(viaparinfo);
1779
1780         viafb_init_chip_info(pdev, ent);
1781         viaparinfo->fbmem = pci_resource_start(pdev, 0);
1782         viaparinfo->memsize = viafb_get_fb_size_from_pci();
1783         viaparinfo->fbmem_free = viaparinfo->memsize;
1784         viaparinfo->fbmem_used = 0;
1785         viafbinfo->screen_base = ioremap_nocache(viaparinfo->fbmem,
1786                 viaparinfo->memsize);
1787         if (!viafbinfo->screen_base) {
1788                 printk(KERN_INFO "ioremap failed\n");
1789                 return -ENOMEM;
1790         }
1791
1792         viafbinfo->fix.mmio_start = pci_resource_start(pdev, 1);
1793         viafbinfo->fix.mmio_len = pci_resource_len(pdev, 1);
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, &pdev->dev);
1862                 if (!viafbinfo1) {
1863                         printk(KERN_ERR
1864                         "allocate the second framebuffer struct error\n");
1865                         framebuffer_release(viafbinfo);
1866                         return -ENOMEM;
1867                 }
1868                 viaparinfo1 = viafbinfo1->par;
1869                 memcpy(viaparinfo1, viaparinfo, viafb_par_length);
1870                 viaparinfo1->vram_addr = viafb_second_offset;
1871                 viaparinfo1->memsize = viaparinfo->memsize -
1872                         viafb_second_offset;
1873                 viaparinfo->memsize = viafb_second_offset;
1874                 viaparinfo1->fbmem = viaparinfo->fbmem + viafb_second_offset;
1875
1876                 viaparinfo1->fbmem_used = viaparinfo->fbmem_used;
1877                 viaparinfo1->fbmem_free = viaparinfo1->memsize -
1878                         viaparinfo1->fbmem_used;
1879                 viaparinfo->fbmem_free = viaparinfo->memsize;
1880                 viaparinfo->fbmem_used = 0;
1881
1882                 viaparinfo->iga_path = IGA1;
1883                 viaparinfo1->iga_path = IGA2;
1884                 memcpy(viafbinfo1, viafbinfo, sizeof(struct fb_info));
1885                 viafbinfo1->par = viaparinfo1;
1886                 viafbinfo1->screen_base = viafbinfo->screen_base +
1887                         viafb_second_offset;
1888
1889                 default_var.xres = viafb_second_xres;
1890                 default_var.yres = viafb_second_yres;
1891                 default_var.xres_virtual = viafb_second_virtual_xres;
1892                 default_var.yres_virtual = viafb_second_virtual_yres;
1893                 default_var.bits_per_pixel = viafb_bpp1;
1894                 default_var.pixclock =
1895                     viafb_get_pixclock(viafb_second_xres, viafb_second_yres,
1896                     viafb_refresh);
1897                 default_var.left_margin = (viafb_second_xres >> 3) & 0xf8;
1898                 default_var.right_margin = 32;
1899                 default_var.upper_margin = 16;
1900                 default_var.lower_margin = 4;
1901                 default_var.hsync_len = default_var.left_margin;
1902                 default_var.vsync_len = 4;
1903
1904                 viafb_setup_fixinfo(&viafbinfo1->fix, viaparinfo1);
1905                 viafb_check_var(&default_var, viafbinfo1);
1906                 viafbinfo1->var = default_var;
1907                 viafb_update_fix(viafbinfo1);
1908                 viaparinfo1->depth = fb_get_color_depth(&viafbinfo1->var,
1909                         &viafbinfo1->fix);
1910         }
1911
1912         viafb_check_var(&viafbinfo->var, viafbinfo);
1913         viafb_update_fix(viafbinfo);
1914         viaparinfo->depth = fb_get_color_depth(&viafbinfo->var,
1915                 &viafbinfo->fix);
1916         default_var.activate = FB_ACTIVATE_NOW;
1917         fb_alloc_cmap(&viafbinfo->cmap, 256, 0);
1918
1919         if (viafb_dual_fb && (viafb_primary_dev == LCD_Device)
1920             && (viaparinfo->chip_info->gfx_chip_name == UNICHROME_CLE266)) {
1921                 if (register_framebuffer(viafbinfo1) < 0)
1922                         return -EINVAL;
1923         }
1924         if (register_framebuffer(viafbinfo) < 0)
1925                 return -EINVAL;
1926
1927         if (viafb_dual_fb && ((viafb_primary_dev != LCD_Device)
1928                         || (viaparinfo->chip_info->gfx_chip_name !=
1929                         UNICHROME_CLE266))) {
1930                 if (register_framebuffer(viafbinfo1) < 0)
1931                         return -EINVAL;
1932         }
1933         DEBUG_MSG(KERN_INFO "fb%d: %s frame buffer device %dx%d-%dbpp\n",
1934                   viafbinfo->node, viafbinfo->fix.id, default_var.xres,
1935                   default_var.yres, default_var.bits_per_pixel);
1936
1937         viafb_init_proc(&viaparinfo->shared->proc_entry);
1938         viafb_init_dac(IGA2);
1939         return 0;
1940 }
1941
1942 static void __devexit via_pci_remove(struct pci_dev *pdev)
1943 {
1944         DEBUG_MSG(KERN_INFO "via_pci_remove!\n");
1945         fb_dealloc_cmap(&viafbinfo->cmap);
1946         unregister_framebuffer(viafbinfo);
1947         if (viafb_dual_fb)
1948                 unregister_framebuffer(viafbinfo1);
1949         iounmap((void *)viafbinfo->screen_base);
1950         iounmap(viaparinfo->shared->engine_mmio);
1951
1952         viafb_delete_i2c_buss(viaparinfo);
1953
1954         framebuffer_release(viafbinfo);
1955         if (viafb_dual_fb)
1956                 framebuffer_release(viafbinfo1);
1957
1958         viafb_remove_proc(viaparinfo->shared->proc_entry);
1959 }
1960
1961 #ifndef MODULE
1962 static int __init viafb_setup(char *options)
1963 {
1964         char *this_opt;
1965         DEBUG_MSG(KERN_INFO "viafb_setup!\n");
1966
1967         if (!options || !*options)
1968                 return 0;
1969
1970         while ((this_opt = strsep(&options, ",")) != NULL) {
1971                 if (!*this_opt)
1972                         continue;
1973
1974                 if (!strncmp(this_opt, "viafb_mode1=", 12))
1975                         viafb_mode1 = kstrdup(this_opt + 12, GFP_KERNEL);
1976                 else if (!strncmp(this_opt, "viafb_mode=", 11))
1977                         viafb_mode = kstrdup(this_opt + 11, GFP_KERNEL);
1978                 else if (!strncmp(this_opt, "viafb_bpp1=", 11))
1979                         strict_strtoul(this_opt + 11, 0,
1980                                 (unsigned long *)&viafb_bpp1);
1981                 else if (!strncmp(this_opt, "viafb_bpp=", 10))
1982                         strict_strtoul(this_opt + 10, 0,
1983                                 (unsigned long *)&viafb_bpp);
1984                 else if (!strncmp(this_opt, "viafb_refresh1=", 15))
1985                         strict_strtoul(this_opt + 15, 0,
1986                                 (unsigned long *)&viafb_refresh1);
1987                 else if (!strncmp(this_opt, "viafb_refresh=", 14))
1988                         strict_strtoul(this_opt + 14, 0,
1989                                 (unsigned long *)&viafb_refresh);
1990                 else if (!strncmp(this_opt, "viafb_lcd_dsp_method=", 21))
1991                         strict_strtoul(this_opt + 21, 0,
1992                                 (unsigned long *)&viafb_lcd_dsp_method);
1993                 else if (!strncmp(this_opt, "viafb_lcd_panel_id=", 19))
1994                         strict_strtoul(this_opt + 19, 0,
1995                                 (unsigned long *)&viafb_lcd_panel_id);
1996                 else if (!strncmp(this_opt, "viafb_accel=", 12))
1997                         strict_strtoul(this_opt + 12, 0,
1998                                 (unsigned long *)&viafb_accel);
1999                 else if (!strncmp(this_opt, "viafb_SAMM_ON=", 14))
2000                         strict_strtoul(this_opt + 14, 0,
2001                                 (unsigned long *)&viafb_SAMM_ON);
2002                 else if (!strncmp(this_opt, "viafb_active_dev=", 17))
2003                         viafb_active_dev = kstrdup(this_opt + 17, GFP_KERNEL);
2004                 else if (!strncmp(this_opt,
2005                         "viafb_display_hardware_layout=", 30))
2006                         strict_strtoul(this_opt + 30, 0,
2007                         (unsigned long *)&viafb_display_hardware_layout);
2008                 else if (!strncmp(this_opt, "viafb_second_size=", 18))
2009                         strict_strtoul(this_opt + 18, 0,
2010                                 (unsigned long *)&viafb_second_size);
2011                 else if (!strncmp(this_opt,
2012                         "viafb_platform_epia_dvi=", 24))
2013                         strict_strtoul(this_opt + 24, 0,
2014                                 (unsigned long *)&viafb_platform_epia_dvi);
2015                 else if (!strncmp(this_opt,
2016                         "viafb_device_lcd_dualedge=", 26))
2017                         strict_strtoul(this_opt + 26, 0,
2018                                 (unsigned long *)&viafb_device_lcd_dualedge);
2019                 else if (!strncmp(this_opt, "viafb_bus_width=", 16))
2020                         strict_strtoul(this_opt + 16, 0,
2021                                 (unsigned long *)&viafb_bus_width);
2022                 else if (!strncmp(this_opt, "viafb_lcd_mode=", 15))
2023                         strict_strtoul(this_opt + 15, 0,
2024                                 (unsigned long *)&viafb_lcd_mode);
2025                 else if (!strncmp(this_opt, "viafb_lcd_port=", 15))
2026                         viafb_lcd_port = kstrdup(this_opt + 15, GFP_KERNEL);
2027                 else if (!strncmp(this_opt, "viafb_dvi_port=", 15))
2028                         viafb_dvi_port = kstrdup(this_opt + 15, GFP_KERNEL);
2029         }
2030         return 0;
2031 }
2032 #endif
2033
2034 static struct pci_device_id viafb_pci_table[] __devinitdata = {
2035         { PCI_DEVICE(PCI_VENDOR_ID_VIA, UNICHROME_CLE266_DID),
2036           .driver_data = UNICHROME_CLE266 },
2037         { PCI_DEVICE(PCI_VENDOR_ID_VIA, UNICHROME_PM800_DID),
2038           .driver_data = UNICHROME_PM800 },
2039         { PCI_DEVICE(PCI_VENDOR_ID_VIA, UNICHROME_K400_DID),
2040           .driver_data = UNICHROME_K400 },
2041         { PCI_DEVICE(PCI_VENDOR_ID_VIA, UNICHROME_K800_DID),
2042           .driver_data = UNICHROME_K800 },
2043         { PCI_DEVICE(PCI_VENDOR_ID_VIA, UNICHROME_P4M890_DID),
2044           .driver_data = UNICHROME_CN700 },
2045         { PCI_DEVICE(PCI_VENDOR_ID_VIA, UNICHROME_K8M890_DID),
2046           .driver_data = UNICHROME_K8M890 },
2047         { PCI_DEVICE(PCI_VENDOR_ID_VIA, UNICHROME_CX700_DID),
2048           .driver_data = UNICHROME_CX700 },
2049         { PCI_DEVICE(PCI_VENDOR_ID_VIA, UNICHROME_P4M900_DID),
2050           .driver_data = UNICHROME_P4M900 },
2051         { PCI_DEVICE(PCI_VENDOR_ID_VIA, UNICHROME_CN750_DID),
2052           .driver_data = UNICHROME_CN750 },
2053         { PCI_DEVICE(PCI_VENDOR_ID_VIA, UNICHROME_VX800_DID),
2054           .driver_data = UNICHROME_VX800 },
2055         { PCI_DEVICE(PCI_VENDOR_ID_VIA, UNICHROME_VX855_DID),
2056           .driver_data = UNICHROME_VX855 },
2057         { }
2058 };
2059 MODULE_DEVICE_TABLE(pci, viafb_pci_table);
2060
2061 static struct pci_driver viafb_driver = {
2062         .name           = "viafb",
2063         .id_table       = viafb_pci_table,
2064         .probe          = via_pci_probe,
2065         .remove         = __devexit_p(via_pci_remove),
2066 };
2067
2068 static int __init viafb_init(void)
2069 {
2070         u32 dummy;
2071 #ifndef MODULE
2072         char *option = NULL;
2073         if (fb_get_options("viafb", &option))
2074                 return -ENODEV;
2075         viafb_setup(option);
2076 #endif
2077         if (parse_mode(viafb_mode, &dummy, &dummy)
2078                 || parse_mode(viafb_mode1, &dummy, &dummy)
2079                 || viafb_bpp < 0 || viafb_bpp > 32
2080                 || viafb_bpp1 < 0 || viafb_bpp1 > 32
2081                 || parse_active_dev())
2082                 return -EINVAL;
2083
2084         printk(KERN_INFO
2085        "VIA Graphics Intergration Chipset framebuffer %d.%d initializing\n",
2086                VERSION_MAJOR, VERSION_MINOR);
2087         return pci_register_driver(&viafb_driver);
2088 }
2089
2090 static void __exit viafb_exit(void)
2091 {
2092         DEBUG_MSG(KERN_INFO "viafb_exit!\n");
2093         pci_unregister_driver(&viafb_driver);
2094 }
2095
2096 static struct fb_ops viafb_ops = {
2097         .owner = THIS_MODULE,
2098         .fb_open = viafb_open,
2099         .fb_release = viafb_release,
2100         .fb_check_var = viafb_check_var,
2101         .fb_set_par = viafb_set_par,
2102         .fb_setcolreg = viafb_setcolreg,
2103         .fb_pan_display = viafb_pan_display,
2104         .fb_blank = viafb_blank,
2105         .fb_fillrect = viafb_fillrect,
2106         .fb_copyarea = viafb_copyarea,
2107         .fb_imageblit = viafb_imageblit,
2108         .fb_cursor = viafb_cursor,
2109         .fb_ioctl = viafb_ioctl,
2110         .fb_sync = viafb_sync,
2111 };
2112
2113 module_init(viafb_init);
2114 module_exit(viafb_exit);
2115
2116 #ifdef MODULE
2117 module_param(viafb_mode, charp, S_IRUSR);
2118 MODULE_PARM_DESC(viafb_mode, "Set resolution (default=640x480)");
2119
2120 module_param(viafb_mode1, charp, S_IRUSR);
2121 MODULE_PARM_DESC(viafb_mode1, "Set resolution (default=640x480)");
2122
2123 module_param(viafb_bpp, int, S_IRUSR);
2124 MODULE_PARM_DESC(viafb_bpp, "Set color depth (default=32bpp)");
2125
2126 module_param(viafb_bpp1, int, S_IRUSR);
2127 MODULE_PARM_DESC(viafb_bpp1, "Set color depth (default=32bpp)");
2128
2129 module_param(viafb_refresh, int, S_IRUSR);
2130 MODULE_PARM_DESC(viafb_refresh,
2131         "Set CRT viafb_refresh rate (default = 60)");
2132
2133 module_param(viafb_refresh1, int, S_IRUSR);
2134 MODULE_PARM_DESC(viafb_refresh1,
2135         "Set CRT refresh rate (default = 60)");
2136
2137 module_param(viafb_lcd_panel_id, int, S_IRUSR);
2138 MODULE_PARM_DESC(viafb_lcd_panel_id,
2139         "Set Flat Panel type(Default=1024x768)");
2140
2141 module_param(viafb_lcd_dsp_method, int, S_IRUSR);
2142 MODULE_PARM_DESC(viafb_lcd_dsp_method,
2143         "Set Flat Panel display scaling method.(Default=Expandsion)");
2144
2145 module_param(viafb_SAMM_ON, int, S_IRUSR);
2146 MODULE_PARM_DESC(viafb_SAMM_ON,
2147         "Turn on/off flag of SAMM(Default=OFF)");
2148
2149 module_param(viafb_accel, int, S_IRUSR);
2150 MODULE_PARM_DESC(viafb_accel,
2151         "Set 2D Hardware Acceleration: 0 = OFF, 1 = ON (default)");
2152
2153 module_param(viafb_active_dev, charp, S_IRUSR);
2154 MODULE_PARM_DESC(viafb_active_dev, "Specify active devices.");
2155
2156 module_param(viafb_display_hardware_layout, int, S_IRUSR);
2157 MODULE_PARM_DESC(viafb_display_hardware_layout,
2158         "Display Hardware Layout (LCD Only, DVI Only...,etc)");
2159
2160 module_param(viafb_second_size, int, S_IRUSR);
2161 MODULE_PARM_DESC(viafb_second_size,
2162         "Set secondary device memory size");
2163
2164 module_param(viafb_dual_fb, int, S_IRUSR);
2165 MODULE_PARM_DESC(viafb_dual_fb,
2166         "Turn on/off flag of dual framebuffer devices.(Default = OFF)");
2167
2168 module_param(viafb_platform_epia_dvi, int, S_IRUSR);
2169 MODULE_PARM_DESC(viafb_platform_epia_dvi,
2170         "Turn on/off flag of DVI devices on EPIA board.(Default = OFF)");
2171
2172 module_param(viafb_device_lcd_dualedge, int, S_IRUSR);
2173 MODULE_PARM_DESC(viafb_device_lcd_dualedge,
2174         "Turn on/off flag of dual edge panel.(Default = OFF)");
2175
2176 module_param(viafb_bus_width, int, S_IRUSR);
2177 MODULE_PARM_DESC(viafb_bus_width,
2178         "Set bus width of panel.(Default = 12)");
2179
2180 module_param(viafb_lcd_mode, int, S_IRUSR);
2181 MODULE_PARM_DESC(viafb_lcd_mode,
2182         "Set Flat Panel mode(Default=OPENLDI)");
2183
2184 module_param(viafb_lcd_port, charp, S_IRUSR);
2185 MODULE_PARM_DESC(viafb_lcd_port, "Specify LCD output port.");
2186
2187 module_param(viafb_dvi_port, charp, S_IRUSR);
2188 MODULE_PARM_DESC(viafb_dvi_port, "Specify DVI output port.");
2189
2190 MODULE_LICENSE("GPL");
2191 #endif