drivers/video/fbdev/via/viafbdev.c

   1 /*
   2  * Copyright 1998-2009 VIA Technologies, Inc. All Rights Reserved.
   3  * Copyright 2001-2008 S3 Graphics, Inc. All Rights Reserved.
   4
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU General Public
   7  * License as published by the Free Software Foundation;
   8  * either version 2, or (at your option) any later version.
   9
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTIES OR REPRESENTATIONS; without even
  12  * the implied warranty of MERCHANTABILITY or FITNESS FOR
  13  * A PARTICULAR PURPOSE.See the GNU General Public License
  14  * for more details.
  15
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc.,
  19  * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  20  */
  21
  22 #include <linux/module.h>
  23 #include <linux/seq_file.h>
  24 #include <linux/slab.h>
  25 #include <linux/stat.h>
  26 #include <linux/via-core.h>
  27 #include <linux/via_i2c.h>
  28
  29 #define _MASTER_FILE
  30 #include "global.h"
  31
  32 static char *viafb_name = "Via";
  33 static u32 pseudo_pal[17];
  34
  35 /* video mode */
  36 static char *viafb_mode;
  37 static char *viafb_mode1;
  38 static int viafb_bpp = 32;
  39 static int viafb_bpp1 = 32;
  40
  41 static unsigned int viafb_second_offset;
  42 static int viafb_second_size;
  43
  44 static int viafb_accel = 1;
  45
  46 /* Added for specifying active devices.*/
  47 static char *viafb_active_dev;
  48
  49 /*Added for specify lcd output port*/
  50 static char *viafb_lcd_port = "";
  51 static char *viafb_dvi_port = "";
  52
  53 static void retrieve_device_setting(struct viafb_ioctl_setting
  54         *setting_info);
  55 static int viafb_pan_display(struct fb_var_screeninfo *var,
  56         struct fb_info *info);
  57
  58 static struct fb_ops viafb_ops;
  59
  60 /* supported output devices on each IGP
  61  * only CX700, VX800, VX855, VX900 were documented
  62  * VIA_CRT should be everywhere
  63  * VIA_6C can be onle pre-CX700 (probably only on CLE266) as 6C is used for PLL
  64  * source selection on CX700 and later
  65  * K400 seems to support VIA_96, VIA_DVP1, VIA_LVDS{1,2} as in viamode.c
  66  */
  67 static const u32 supported_odev_map[] = {
  68         [UNICHROME_CLE266]      = VIA_CRT | VIA_LDVP0 | VIA_LDVP1,
  69         [UNICHROME_K400]        = VIA_CRT | VIA_DVP0 | VIA_DVP1 | VIA_LVDS1
  70                                 | VIA_LVDS2,
  71         [UNICHROME_K800]        = VIA_CRT | VIA_DVP0 | VIA_DVP1 | VIA_LVDS1
  72                                 | VIA_LVDS2,
  73         [UNICHROME_PM800]       = VIA_CRT | VIA_DVP0 | VIA_DVP1 | VIA_LVDS1
  74                                 | VIA_LVDS2,
  75         [UNICHROME_CN700]       = VIA_CRT | VIA_DVP0 | VIA_DVP1 | VIA_LVDS1
  76                                 | VIA_LVDS2,
  77         [UNICHROME_CX700]       = VIA_CRT | VIA_DVP1 | VIA_LVDS1 | VIA_LVDS2,
  78         [UNICHROME_CN750]       = VIA_CRT | VIA_DVP1 | VIA_LVDS1 | VIA_LVDS2,
  79         [UNICHROME_K8M890]      = VIA_CRT | VIA_DVP1 | VIA_LVDS1 | VIA_LVDS2,
  80         [UNICHROME_P4M890]      = VIA_CRT | VIA_DVP1 | VIA_LVDS1 | VIA_LVDS2,
  81         [UNICHROME_P4M900]      = VIA_CRT | VIA_DVP1 | VIA_LVDS1 | VIA_LVDS2,
  82         [UNICHROME_VX800]       = VIA_CRT | VIA_DVP1 | VIA_LVDS1 | VIA_LVDS2,
  83         [UNICHROME_VX855]       = VIA_CRT | VIA_DVP1 | VIA_LVDS1 | VIA_LVDS2,
  84         [UNICHROME_VX900]       = VIA_CRT | VIA_DVP1 | VIA_LVDS1 | VIA_LVDS2,
  85 };
  86
  87 static void viafb_fill_var_color_info(struct fb_var_screeninfo *var, u8 depth)
  88 {
  89         var->grayscale = 0;
  90         var->red.msb_right = 0;
  91         var->green.msb_right = 0;
  92         var->blue.msb_right = 0;
  93         var->transp.offset = 0;
  94         var->transp.length = 0;
  95         var->transp.msb_right = 0;
  96         var->nonstd = 0;
  97         switch (depth) {
  98         case 8:
  99                 var->bits_per_pixel = 8;
 100                 var->red.offset = 0;
 101                 var->green.offset = 0;
 102                 var->blue.offset = 0;
 103                 var->red.length = 8;
 104                 var->green.length = 8;
 105                 var->blue.length = 8;
 106                 break;
 107         case 15:
 108                 var->bits_per_pixel = 16;
 109                 var->red.offset = 10;
 110                 var->green.offset = 5;
 111                 var->blue.offset = 0;
 112                 var->red.length = 5;
 113                 var->green.length = 5;
 114                 var->blue.length = 5;
 115                 break;
 116         case 16:
 117                 var->bits_per_pixel = 16;
 118                 var->red.offset = 11;
 119                 var->green.offset = 5;
 120                 var->blue.offset = 0;
 121                 var->red.length = 5;
 122                 var->green.length = 6;
 123                 var->blue.length = 5;
 124                 break;
 125         case 24:
 126                 var->bits_per_pixel = 32;
 127                 var->red.offset = 16;
 128                 var->green.offset = 8;
 129                 var->blue.offset = 0;
 130                 var->red.length = 8;
 131                 var->green.length = 8;
 132                 var->blue.length = 8;
 133                 break;
 134         case 30:
 135                 var->bits_per_pixel = 32;
 136                 var->red.offset = 20;
 137                 var->green.offset = 10;
 138                 var->blue.offset = 0;
 139                 var->red.length = 10;
 140                 var->green.length = 10;
 141                 var->blue.length = 10;
 142                 break;
 143         }
 144 }
 145
 146 static void viafb_update_fix(struct fb_info *info)
 147 {
 148         u32 bpp = info->var.bits_per_pixel;
 149
 150         info->fix.visual =
 151                 bpp == 8 ? FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_TRUECOLOR;
 152         info->fix.line_length = ALIGN(info->var.xres_virtual * bpp / 8,
 153                 VIA_PITCH_SIZE);
 154 }
 155
 156 static void viafb_setup_fixinfo(struct fb_fix_screeninfo *fix,
 157         struct viafb_par *viaparinfo)
 158 {
 159         memset(fix, 0, sizeof(struct fb_fix_screeninfo));
 160         strcpy(fix->id, viafb_name);
 161
 162         fix->smem_start = viaparinfo->fbmem;
 163         fix->smem_len = viaparinfo->fbmem_free;
 164
 165         fix->type = FB_TYPE_PACKED_PIXELS;
 166         fix->type_aux = 0;
 167         fix->visual = FB_VISUAL_TRUECOLOR;
 168
 169         fix->xpanstep = fix->ywrapstep = 0;
 170         fix->ypanstep = 1;
 171
 172         /* Just tell the accel name */
 173         viafbinfo->fix.accel = FB_ACCEL_VIA_UNICHROME;
 174 }
 175 static int viafb_open(struct fb_info *info, int user)
 176 {
 177         DEBUG_MSG(KERN_INFO "viafb_open!\n");
 178         return 0;
 179 }
 180
 181 static int viafb_release(struct fb_info *info, int user)
 182 {
 183         DEBUG_MSG(KERN_INFO "viafb_release!\n");
 184         return 0;
 185 }
 186
 187 static inline int get_var_refresh(struct fb_var_screeninfo *var)
 188 {
 189         u32 htotal, vtotal;
 190
 191         htotal = var->left_margin + var->xres + var->right_margin
 192                 + var->hsync_len;
 193         vtotal = var->upper_margin + var->yres + var->lower_margin
 194                 + var->vsync_len;
 195         return PICOS2KHZ(var->pixclock) * 1000 / (htotal * vtotal);
 196 }
 197
 198 static int viafb_check_var(struct fb_var_screeninfo *var,
 199         struct fb_info *info)
 200 {
 201         int depth, refresh;
 202         struct viafb_par *ppar = info->par;
 203         u32 line;
 204
 205         DEBUG_MSG(KERN_INFO "viafb_check_var!\n");
 206         /* Sanity check */
 207         /* HW neither support interlacte nor double-scaned mode */
 208         if (var->vmode & FB_VMODE_INTERLACED || var->vmode & FB_VMODE_DOUBLE)
 209                 return -EINVAL;
 210
 211         /* the refresh rate is not important here, as we only want to know
 212          * whether the resolution exists
 213          */
 214         if (!viafb_get_best_mode(var->xres, var->yres, 60)) {
 215                 DEBUG_MSG(KERN_INFO
 216                           "viafb: Mode %dx%dx%d not supported!!\n",
 217                           var->xres, var->yres, var->bits_per_pixel);
 218                 return -EINVAL;
 219         }
 220
 221         depth = fb_get_color_depth(var, &info->fix);
 222         if (!depth)
 223                 depth = var->bits_per_pixel;
 224
 225         if (depth < 0 || depth > 32)
 226                 return -EINVAL;
 227         else if (!depth)
 228                 depth = 24;
 229         else if (depth == 15 && viafb_dual_fb && ppar->iga_path == IGA1)
 230                 depth = 15;
 231         else if (depth == 30)
 232                 depth = 30;
 233         else if (depth <= 8)
 234                 depth = 8;
 235         else if (depth <= 16)
 236                 depth = 16;
 237         else
 238                 depth = 24;
 239
 240         viafb_fill_var_color_info(var, depth);
 241         if (var->xres_virtual < var->xres)
 242                 var->xres_virtual = var->xres;
 243
 244         line = ALIGN(var->xres_virtual * var->bits_per_pixel / 8,
 245                 VIA_PITCH_SIZE);
 246         if (line > VIA_PITCH_MAX || line * var->yres_virtual > ppar->memsize)
 247                 return -EINVAL;
 248
 249         /* Based on var passed in to calculate the refresh,
 250          * because our driver use some modes special.
 251          */
 252         refresh = viafb_get_refresh(var->xres, var->yres,
 253                 get_var_refresh(var));
 254
 255         /* Adjust var according to our driver's own table */
 256         viafb_fill_var_timing_info(var,
 257                 viafb_get_best_mode(var->xres, var->yres, refresh));
 258         if (var->accel_flags & FB_ACCELF_TEXT &&
 259                 !ppar->shared->vdev->engine_mmio)
 260                 var->accel_flags = 0;
 261
 262         return 0;
 263 }
 264
 265 static int viafb_set_par(struct fb_info *info)
 266 {
 267         struct viafb_par *viapar = info->par;
 268         int refresh;
 269         DEBUG_MSG(KERN_INFO "viafb_set_par!\n");
 270
 271         viafb_update_fix(info);
 272         viapar->depth = fb_get_color_depth(&info->var, &info->fix);
 273         viafb_update_device_setting(viafbinfo->var.xres, viafbinfo->var.yres,
 274                 viafbinfo->var.bits_per_pixel, 0);
 275
 276         if (viafb_dual_fb) {
 277                 viafb_update_device_setting(viafbinfo1->var.xres,
 278                         viafbinfo1->var.yres, viafbinfo1->var.bits_per_pixel,
 279                         1);
 280         } else if (viafb_SAMM_ON == 1) {
 281                 DEBUG_MSG(KERN_INFO
 282                 "viafb_second_xres = %d, viafb_second_yres = %d, bpp = %d\n",
 283                           viafb_second_xres, viafb_second_yres, viafb_bpp1);
 284
 285                 viafb_update_device_setting(viafb_second_xres,
 286                         viafb_second_yres, viafb_bpp1, 1);
 287         }
 288
 289         refresh = get_var_refresh(&info->var);
 290         if (viafb_dual_fb && viapar->iga_path == IGA2) {
 291                 viafb_bpp1 = info->var.bits_per_pixel;
 292                 viafb_refresh1 = refresh;
 293         } else {
 294                 viafb_bpp = info->var.bits_per_pixel;
 295                 viafb_refresh = refresh;
 296         }
 297
 298         if (info->var.accel_flags & FB_ACCELF_TEXT)
 299                 info->flags &= ~FBINFO_HWACCEL_DISABLED;
 300         else
 301                 info->flags |= FBINFO_HWACCEL_DISABLED;
 302         viafb_setmode();
 303         viafb_pan_display(&info->var, info);
 304
 305         return 0;
 306 }
 307
 308 /* Set one color register */
 309 static int viafb_setcolreg(unsigned regno, unsigned red, unsigned green,
 310 unsigned blue, unsigned transp, struct fb_info *info)
 311 {
 312         struct viafb_par *viapar = info->par;
 313         u32 r, g, b;
 314
 315         if (info->fix.visual == FB_VISUAL_PSEUDOCOLOR) {
 316                 if (regno > 255)
 317                         return -EINVAL;
 318
 319                 if (!viafb_dual_fb || viapar->iga_path == IGA1)
 320                         viafb_set_primary_color_register(regno, red >> 8,
 321                                 green >> 8, blue >> 8);
 322
 323                 if (!viafb_dual_fb || viapar->iga_path == IGA2)
 324                         viafb_set_secondary_color_register(regno, red >> 8,
 325                                 green >> 8, blue >> 8);
 326         } else {
 327                 if (regno > 15)
 328                         return -EINVAL;
 329
 330                 r = (red >> (16 - info->var.red.length))
 331                         << info->var.red.offset;
 332                 b = (blue >> (16 - info->var.blue.length))
 333                         << info->var.blue.offset;
 334                 g = (green >> (16 - info->var.green.length))
 335                         << info->var.green.offset;
 336                 ((u32 *) info->pseudo_palette)[regno] = r | g | b;
 337         }
 338
 339         return 0;
 340 }
 341
 342 static int viafb_pan_display(struct fb_var_screeninfo *var,
 343         struct fb_info *info)
 344 {
 345         struct viafb_par *viapar = info->par;
 346         u32 vram_addr = viapar->vram_addr
 347                 + var->yoffset * info->fix.line_length
 348                 + var->xoffset * info->var.bits_per_pixel / 8;
 349
 350         DEBUG_MSG(KERN_DEBUG "viafb_pan_display, address = %d\n", vram_addr);
 351         if (!viafb_dual_fb) {
 352                 via_set_primary_address(vram_addr);
 353                 via_set_secondary_address(vram_addr);
 354         } else if (viapar->iga_path == IGA1)
 355                 via_set_primary_address(vram_addr);
 356         else
 357                 via_set_secondary_address(vram_addr);
 358
 359         return 0;
 360 }
 361
 362 static int viafb_blank(int blank_mode, struct fb_info *info)
 363 {
 364         DEBUG_MSG(KERN_INFO "viafb_blank!\n");
 365         /* clear DPMS setting */
 366
 367         switch (blank_mode) {
 368         case FB_BLANK_UNBLANK:
 369                 /* Screen: On, HSync: On, VSync: On */
 370                 /* control CRT monitor power management */
 371                 via_set_state(VIA_CRT, VIA_STATE_ON);
 372                 break;
 373         case FB_BLANK_HSYNC_SUSPEND:
 374                 /* Screen: Off, HSync: Off, VSync: On */
 375                 /* control CRT monitor power management */
 376                 via_set_state(VIA_CRT, VIA_STATE_STANDBY);
 377                 break;
 378         case FB_BLANK_VSYNC_SUSPEND:
 379                 /* Screen: Off, HSync: On, VSync: Off */
 380                 /* control CRT monitor power management */
 381                 via_set_state(VIA_CRT, VIA_STATE_SUSPEND);
 382                 break;
 383         case FB_BLANK_POWERDOWN:
 384                 /* Screen: Off, HSync: Off, VSync: Off */
 385                 /* control CRT monitor power management */
 386                 via_set_state(VIA_CRT, VIA_STATE_OFF);
 387                 break;
 388         }
 389
 390         return 0;
 391 }
 392
 393 static int viafb_ioctl(struct fb_info *info, u_int cmd, u_long arg)
 394 {
 395         union {
 396                 struct viafb_ioctl_mode viamode;
 397                 struct viafb_ioctl_samm viasamm;
 398                 struct viafb_driver_version driver_version;
 399                 struct fb_var_screeninfo sec_var;
 400                 struct _panel_size_pos_info panel_pos_size_para;
 401                 struct viafb_ioctl_setting viafb_setting;
 402                 struct device_t active_dev;
 403         } u;
 404         u32 state_info = 0;
 405         u32 *viafb_gamma_table;
 406         char driver_name[] = "viafb";
 407
 408         u32 __user *argp = (u32 __user *) arg;
 409         u32 gpu32;
 410
 411         DEBUG_MSG(KERN_INFO "viafb_ioctl: 0x%X !!\n", cmd);
 412         printk(KERN_WARNING "viafb_ioctl: Please avoid this interface as it is unstable and might change or vanish at any time!\n");
 413         memset(&u, 0, sizeof(u));
 414
 415         switch (cmd) {
 416         case VIAFB_GET_CHIP_INFO:
 417                 if (copy_to_user(argp, viaparinfo->chip_info,
 418                                 sizeof(struct chip_information)))
 419                         return -EFAULT;
 420                 break;
 421         case VIAFB_GET_INFO_SIZE:
 422                 return put_user((u32)sizeof(struct viafb_ioctl_info), argp);
 423         case VIAFB_GET_INFO:
 424                 return viafb_ioctl_get_viafb_info(arg);
 425         case VIAFB_HOTPLUG:
 426                 return put_user(viafb_ioctl_hotplug(info->var.xres,
 427                                               info->var.yres,
 428                                               info->var.bits_per_pixel), argp);
 429         case VIAFB_SET_HOTPLUG_FLAG:
 430                 if (copy_from_user(&gpu32, argp, sizeof(gpu32)))
 431                         return -EFAULT;
 432                 viafb_hotplug = (gpu32) ? 1 : 0;
 433                 break;
 434         case VIAFB_GET_RESOLUTION:
 435                 u.viamode.xres = (u32) viafb_hotplug_Xres;
 436                 u.viamode.yres = (u32) viafb_hotplug_Yres;
 437                 u.viamode.refresh = (u32) viafb_hotplug_refresh;
 438                 u.viamode.bpp = (u32) viafb_hotplug_bpp;
 439                 if (viafb_SAMM_ON == 1) {
 440                         u.viamode.xres_sec = viafb_second_xres;
 441                         u.viamode.yres_sec = viafb_second_yres;
 442                         u.viamode.virtual_xres_sec = viafb_dual_fb ? viafbinfo1->var.xres_virtual : viafbinfo->var.xres_virtual;
 443                         u.viamode.virtual_yres_sec = viafb_dual_fb ? viafbinfo1->var.yres_virtual : viafbinfo->var.yres_virtual;
 444                         u.viamode.refresh_sec = viafb_refresh1;
 445                         u.viamode.bpp_sec = viafb_bpp1;
 446                 } else {
 447                         u.viamode.xres_sec = 0;
 448                         u.viamode.yres_sec = 0;
 449                         u.viamode.virtual_xres_sec = 0;
 450                         u.viamode.virtual_yres_sec = 0;
 451                         u.viamode.refresh_sec = 0;
 452                         u.viamode.bpp_sec = 0;
 453                 }
 454                 if (copy_to_user(argp, &u.viamode, sizeof(u.viamode)))
 455                         return -EFAULT;
 456                 break;
 457         case VIAFB_GET_SAMM_INFO:
 458                 u.viasamm.samm_status = viafb_SAMM_ON;
 459
 460                 if (viafb_SAMM_ON == 1) {
 461                         if (viafb_dual_fb) {
 462                                 u.viasamm.size_prim = viaparinfo->fbmem_free;
 463                                 u.viasamm.size_sec = viaparinfo1->fbmem_free;
 464                         } else {
 465                                 if (viafb_second_size) {
 466                                         u.viasamm.size_prim =
 467                                             viaparinfo->fbmem_free -
 468                                             viafb_second_size * 1024 * 1024;
 469                                         u.viasamm.size_sec =
 470                                             viafb_second_size * 1024 * 1024;
 471                                 } else {
 472                                         u.viasamm.size_prim =
 473                                             viaparinfo->fbmem_free >> 1;
 474                                         u.viasamm.size_sec =
 475                                             (viaparinfo->fbmem_free >> 1);
 476                                 }
 477                         }
 478                         u.viasamm.mem_base = viaparinfo->fbmem;
 479                         u.viasamm.offset_sec = viafb_second_offset;
 480                 } else {
 481                         u.viasamm.size_prim =
 482                             viaparinfo->memsize - viaparinfo->fbmem_used;
 483                         u.viasamm.size_sec = 0;
 484                         u.viasamm.mem_base = viaparinfo->fbmem;
 485                         u.viasamm.offset_sec = 0;
 486                 }
 487
 488                 if (copy_to_user(argp, &u.viasamm, sizeof(u.viasamm)))
 489                         return -EFAULT;
 490
 491                 break;
 492         case VIAFB_TURN_ON_OUTPUT_DEVICE:
 493                 if (copy_from_user(&gpu32, argp, sizeof(gpu32)))
 494                         return -EFAULT;
 495                 if (gpu32 & CRT_Device)
 496                         via_set_state(VIA_CRT, VIA_STATE_ON);
 497                 if (gpu32 & DVI_Device)
 498                         viafb_dvi_enable();
 499                 if (gpu32 & LCD_Device)
 500                         viafb_lcd_enable();
 501                 break;
 502         case VIAFB_TURN_OFF_OUTPUT_DEVICE:
 503                 if (copy_from_user(&gpu32, argp, sizeof(gpu32)))
 504                         return -EFAULT;
 505                 if (gpu32 & CRT_Device)
 506                         via_set_state(VIA_CRT, VIA_STATE_OFF);
 507                 if (gpu32 & DVI_Device)
 508                         viafb_dvi_disable();
 509                 if (gpu32 & LCD_Device)
 510                         viafb_lcd_disable();
 511                 break;
 512         case VIAFB_GET_DEVICE:
 513                 u.active_dev.crt = viafb_CRT_ON;
 514                 u.active_dev.dvi = viafb_DVI_ON;
 515                 u.active_dev.lcd = viafb_LCD_ON;
 516                 u.active_dev.samm = viafb_SAMM_ON;
 517                 u.active_dev.primary_dev = viafb_primary_dev;
 518
 519                 u.active_dev.lcd_dsp_cent = viafb_lcd_dsp_method;
 520                 u.active_dev.lcd_panel_id = viafb_lcd_panel_id;
 521                 u.active_dev.lcd_mode = viafb_lcd_mode;
 522
 523                 u.active_dev.xres = viafb_hotplug_Xres;
 524                 u.active_dev.yres = viafb_hotplug_Yres;
 525
 526                 u.active_dev.xres1 = viafb_second_xres;
 527                 u.active_dev.yres1 = viafb_second_yres;
 528
 529                 u.active_dev.bpp = viafb_bpp;
 530                 u.active_dev.bpp1 = viafb_bpp1;
 531                 u.active_dev.refresh = viafb_refresh;
 532                 u.active_dev.refresh1 = viafb_refresh1;
 533
 534                 u.active_dev.epia_dvi = viafb_platform_epia_dvi;
 535                 u.active_dev.lcd_dual_edge = viafb_device_lcd_dualedge;
 536                 u.active_dev.bus_width = viafb_bus_width;
 537
 538                 if (copy_to_user(argp, &u.active_dev, sizeof(u.active_dev)))
 539                         return -EFAULT;
 540                 break;
 541
 542         case VIAFB_GET_DRIVER_VERSION:
 543                 u.driver_version.iMajorNum = VERSION_MAJOR;
 544                 u.driver_version.iKernelNum = VERSION_KERNEL;
 545                 u.driver_version.iOSNum = VERSION_OS;
 546                 u.driver_version.iMinorNum = VERSION_MINOR;
 547
 548                 if (copy_to_user(argp, &u.driver_version,
 549                         sizeof(u.driver_version)))
 550                         return -EFAULT;
 551
 552                 break;
 553
 554         case VIAFB_GET_DEVICE_INFO:
 555
 556                 retrieve_device_setting(&u.viafb_setting);
 557
 558                 if (copy_to_user(argp, &u.viafb_setting,
 559                                  sizeof(u.viafb_setting)))
 560                         return -EFAULT;
 561
 562                 break;
 563
 564         case VIAFB_GET_DEVICE_SUPPORT:
 565                 viafb_get_device_support_state(&state_info);
 566                 if (put_user(state_info, argp))
 567                         return -EFAULT;
 568                 break;
 569
 570         case VIAFB_GET_DEVICE_CONNECT:
 571                 viafb_get_device_connect_state(&state_info);
 572                 if (put_user(state_info, argp))
 573                         return -EFAULT;
 574                 break;
 575
 576         case VIAFB_GET_PANEL_SUPPORT_EXPAND:
 577                 state_info =
 578                     viafb_lcd_get_support_expand_state(info->var.xres,
 579                                                  info->var.yres);
 580                 if (put_user(state_info, argp))
 581                         return -EFAULT;
 582                 break;
 583
 584         case VIAFB_GET_DRIVER_NAME:
 585                 if (copy_to_user(argp, driver_name, sizeof(driver_name)))
 586                         return -EFAULT;
 587                 break;
 588
 589         case VIAFB_SET_GAMMA_LUT:
 590                 viafb_gamma_table = memdup_user(argp, 256 * sizeof(u32));
 591                 if (IS_ERR(viafb_gamma_table))
 592                         return PTR_ERR(viafb_gamma_table);
 593                 viafb_set_gamma_table(viafb_bpp, viafb_gamma_table);
 594                 kfree(viafb_gamma_table);
 595                 break;
 596
 597         case VIAFB_GET_GAMMA_LUT:
 598                 viafb_gamma_table = kmalloc_array(256, sizeof(u32),
 599                                                   GFP_KERNEL);
 600                 if (!viafb_gamma_table)
 601                         return -ENOMEM;
 602                 viafb_get_gamma_table(viafb_gamma_table);
 603                 if (copy_to_user(argp, viafb_gamma_table,
 604                         256 * sizeof(u32))) {
 605                         kfree(viafb_gamma_table);
 606                         return -EFAULT;
 607                 }
 608                 kfree(viafb_gamma_table);
 609                 break;
 610
 611         case VIAFB_GET_GAMMA_SUPPORT_STATE:
 612                 viafb_get_gamma_support_state(viafb_bpp, &state_info);
 613                 if (put_user(state_info, argp))
 614                         return -EFAULT;
 615                 break;
 616         case VIAFB_SYNC_SURFACE:
 617                 DEBUG_MSG(KERN_INFO "lobo VIAFB_SYNC_SURFACE\n");
 618                 break;
 619         case VIAFB_GET_DRIVER_CAPS:
 620                 break;
 621
 622         case VIAFB_GET_PANEL_MAX_SIZE:
 623                 if (copy_from_user(&u.panel_pos_size_para, argp,
 624                                    sizeof(u.panel_pos_size_para)))
 625                         return -EFAULT;
 626                 u.panel_pos_size_para.x = u.panel_pos_size_para.y = 0;
 627                 if (copy_to_user(argp, &u.panel_pos_size_para,
 628                      sizeof(u.panel_pos_size_para)))
 629                         return -EFAULT;
 630                 break;
 631         case VIAFB_GET_PANEL_MAX_POSITION:
 632                 if (copy_from_user(&u.panel_pos_size_para, argp,
 633                                    sizeof(u.panel_pos_size_para)))
 634                         return -EFAULT;
 635                 u.panel_pos_size_para.x = u.panel_pos_size_para.y = 0;
 636                 if (copy_to_user(argp, &u.panel_pos_size_para,
 637                                  sizeof(u.panel_pos_size_para)))
 638                         return -EFAULT;
 639                 break;
 640
 641         case VIAFB_GET_PANEL_POSITION:
 642                 if (copy_from_user(&u.panel_pos_size_para, argp,
 643                                    sizeof(u.panel_pos_size_para)))
 644                         return -EFAULT;
 645                 u.panel_pos_size_para.x = u.panel_pos_size_para.y = 0;
 646                 if (copy_to_user(argp, &u.panel_pos_size_para,
 647                                  sizeof(u.panel_pos_size_para)))
 648                         return -EFAULT;
 649                 break;
 650         case VIAFB_GET_PANEL_SIZE:
 651                 if (copy_from_user(&u.panel_pos_size_para, argp,
 652                                    sizeof(u.panel_pos_size_para)))
 653                         return -EFAULT;
 654                 u.panel_pos_size_para.x = u.panel_pos_size_para.y = 0;
 655                 if (copy_to_user(argp, &u.panel_pos_size_para,
 656                                  sizeof(u.panel_pos_size_para)))
 657                         return -EFAULT;
 658                 break;
 659
 660         case VIAFB_SET_PANEL_POSITION:
 661                 if (copy_from_user(&u.panel_pos_size_para, argp,
 662                                    sizeof(u.panel_pos_size_para)))
 663                         return -EFAULT;
 664                 break;
 665         case VIAFB_SET_PANEL_SIZE:
 666                 if (copy_from_user(&u.panel_pos_size_para, argp,
 667                                    sizeof(u.panel_pos_size_para)))
 668                         return -EFAULT;
 669                 break;
 670
 671         default:
 672                 return -EINVAL;
 673         }
 674
 675         return 0;
 676 }
 677
 678 static void viafb_fillrect(struct fb_info *info,
 679         const struct fb_fillrect *rect)
 680 {
 681         struct viafb_par *viapar = info->par;
 682         struct viafb_shared *shared = viapar->shared;
 683         u32 fg_color;
 684         u8 rop;
 685
 686         if (info->flags & FBINFO_HWACCEL_DISABLED || !shared->hw_bitblt) {
 687                 cfb_fillrect(info, rect);
 688                 return;
 689         }
 690
 691         if (!rect->width || !rect->height)
 692                 return;
 693
 694         if (info->fix.visual == FB_VISUAL_TRUECOLOR)
 695                 fg_color = ((u32 *)info->pseudo_palette)[rect->color];
 696         else
 697                 fg_color = rect->color;
 698
 699         if (rect->rop == ROP_XOR)
 700                 rop = 0x5A;
 701         else
 702                 rop = 0xF0;
 703
 704         DEBUG_MSG(KERN_DEBUG "viafb 2D engine: fillrect\n");
 705         if (shared->hw_bitblt(shared->vdev->engine_mmio, VIA_BITBLT_FILL,
 706                 rect->width, rect->height, info->var.bits_per_pixel,
 707                 viapar->vram_addr, info->fix.line_length, rect->dx, rect->dy,
 708                 NULL, 0, 0, 0, 0, fg_color, 0, rop))
 709                 cfb_fillrect(info, rect);
 710 }
 711
 712 static void viafb_copyarea(struct fb_info *info,
 713         const struct fb_copyarea *area)
 714 {
 715         struct viafb_par *viapar = info->par;
 716         struct viafb_shared *shared = viapar->shared;
 717
 718         if (info->flags & FBINFO_HWACCEL_DISABLED || !shared->hw_bitblt) {
 719                 cfb_copyarea(info, area);
 720                 return;
 721         }
 722
 723         if (!area->width || !area->height)
 724                 return;
 725
 726         DEBUG_MSG(KERN_DEBUG "viafb 2D engine: copyarea\n");
 727         if (shared->hw_bitblt(shared->vdev->engine_mmio, VIA_BITBLT_COLOR,
 728                 area->width, area->height, info->var.bits_per_pixel,
 729                 viapar->vram_addr, info->fix.line_length, area->dx, area->dy,
 730                 NULL, viapar->vram_addr, info->fix.line_length,
 731                 area->sx, area->sy, 0, 0, 0))
 732                 cfb_copyarea(info, area);
 733 }
 734
 735 static void viafb_imageblit(struct fb_info *info,
 736         const struct fb_image *image)
 737 {
 738         struct viafb_par *viapar = info->par;
 739         struct viafb_shared *shared = viapar->shared;
 740         u32 fg_color = 0, bg_color = 0;
 741         u8 op;
 742
 743         if (info->flags & FBINFO_HWACCEL_DISABLED || !shared->hw_bitblt ||
 744                 (image->depth != 1 && image->depth != viapar->depth)) {
 745                 cfb_imageblit(info, image);
 746                 return;
 747         }
 748
 749         if (image->depth == 1) {
 750                 op = VIA_BITBLT_MONO;
 751                 if (info->fix.visual == FB_VISUAL_TRUECOLOR) {
 752                         fg_color =
 753                                 ((u32 *)info->pseudo_palette)[image->fg_color];
 754                         bg_color =
 755                                 ((u32 *)info->pseudo_palette)[image->bg_color];
 756                 } else {
 757                         fg_color = image->fg_color;
 758                         bg_color = image->bg_color;
 759                 }
 760         } else
 761                 op = VIA_BITBLT_COLOR;
 762
 763         DEBUG_MSG(KERN_DEBUG "viafb 2D engine: imageblit\n");
 764         if (shared->hw_bitblt(shared->vdev->engine_mmio, op,
 765                 image->width, image->height, info->var.bits_per_pixel,
 766                 viapar->vram_addr, info->fix.line_length, image->dx, image->dy,
 767                 (u32 *)image->data, 0, 0, 0, 0, fg_color, bg_color, 0))
 768                 cfb_imageblit(info, image);
 769 }
 770
 771 static int viafb_cursor(struct fb_info *info, struct fb_cursor *cursor)
 772 {
 773         struct viafb_par *viapar = info->par;
 774         void __iomem *engine = viapar->shared->vdev->engine_mmio;
 775         u32 temp, xx, yy, bg_color = 0, fg_color = 0,
 776                 chip_name = viapar->shared->chip_info.gfx_chip_name;
 777         int i, j = 0, cur_size = 64;
 778
 779         if (info->flags & FBINFO_HWACCEL_DISABLED || info != viafbinfo)
 780                 return -ENODEV;
 781
 782         /* LCD ouput does not support hw cursors (at least on VN896) */
 783         if ((chip_name == UNICHROME_CLE266 && viapar->iga_path == IGA2) ||
 784                 viafb_LCD_ON)
 785                 return -ENODEV;
 786
 787         viafb_show_hw_cursor(info, HW_Cursor_OFF);
 788
 789         if (cursor->set & FB_CUR_SETHOT) {
 790                 temp = (cursor->hot.x << 16) + cursor->hot.y;
 791                 writel(temp, engine + VIA_REG_CURSOR_ORG);
 792         }
 793
 794         if (cursor->set & FB_CUR_SETPOS) {
 795                 yy = cursor->image.dy - info->var.yoffset;
 796                 xx = cursor->image.dx - info->var.xoffset;
 797                 temp = yy & 0xFFFF;
 798                 temp |= (xx << 16);
 799                 writel(temp, engine + VIA_REG_CURSOR_POS);
 800         }
 801
 802         if (cursor->image.width <= 32 && cursor->image.height <= 32)
 803                 cur_size = 32;
 804         else if (cursor->image.width <= 64 && cursor->image.height <= 64)
 805                 cur_size = 64;
 806         else {
 807                 printk(KERN_WARNING "viafb_cursor: The cursor is too large "
 808                         "%dx%d", cursor->image.width, cursor->image.height);
 809                 return -ENXIO;
 810         }
 811
 812         if (cursor->set & FB_CUR_SETSIZE) {
 813                 temp = readl(engine + VIA_REG_CURSOR_MODE);
 814                 if (cur_size == 32)
 815                         temp |= 0x2;
 816                 else
 817                         temp &= ~0x2;
 818
 819                 writel(temp, engine + VIA_REG_CURSOR_MODE);
 820         }
 821
 822         if (cursor->set & FB_CUR_SETCMAP) {
 823                 fg_color = cursor->image.fg_color;
 824                 bg_color = cursor->image.bg_color;
 825                 if (chip_name == UNICHROME_CX700 ||
 826                         chip_name == UNICHROME_VX800 ||
 827                         chip_name == UNICHROME_VX855 ||
 828                         chip_name == UNICHROME_VX900) {
 829                         fg_color =
 830                                 ((info->cmap.red[fg_color] & 0xFFC0) << 14) |
 831                                 ((info->cmap.green[fg_color] & 0xFFC0) << 4) |
 832                                 ((info->cmap.blue[fg_color] & 0xFFC0) >> 6);
 833                         bg_color =
 834                                 ((info->cmap.red[bg_color] & 0xFFC0) << 14) |
 835                                 ((info->cmap.green[bg_color] & 0xFFC0) << 4) |
 836                                 ((info->cmap.blue[bg_color] & 0xFFC0) >> 6);
 837                 } else {
 838                         fg_color =
 839                                 ((info->cmap.red[fg_color] & 0xFF00) << 8) |
 840                                 (info->cmap.green[fg_color] & 0xFF00) |
 841                                 ((info->cmap.blue[fg_color] & 0xFF00) >> 8);
 842                         bg_color =
 843                                 ((info->cmap.red[bg_color] & 0xFF00) << 8) |
 844                                 (info->cmap.green[bg_color] & 0xFF00) |
 845                                 ((info->cmap.blue[bg_color] & 0xFF00) >> 8);
 846                 }
 847
 848                 writel(bg_color, engine + VIA_REG_CURSOR_BG);
 849                 writel(fg_color, engine + VIA_REG_CURSOR_FG);
 850         }
 851
 852         if (cursor->set & FB_CUR_SETSHAPE) {
 853                 struct {
 854                         u8 data[CURSOR_SIZE];
 855                         u32 bak[CURSOR_SIZE / 4];
 856                 } *cr_data = kzalloc(sizeof(*cr_data), GFP_ATOMIC);
 857                 int size = ((cursor->image.width + 7) >> 3) *
 858                         cursor->image.height;
 859
 860                 if (!cr_data)
 861                         return -ENOMEM;
 862
 863                 if (cur_size == 32) {
 864                         for (i = 0; i < (CURSOR_SIZE / 4); i++) {
 865                                 cr_data->bak[i] = 0x0;
 866                                 cr_data->bak[i + 1] = 0xFFFFFFFF;
 867                                 i += 1;
 868                         }
 869                 } else {
 870                         for (i = 0; i < (CURSOR_SIZE / 4); i++) {
 871                                 cr_data->bak[i] = 0x0;
 872                                 cr_data->bak[i + 1] = 0x0;
 873                                 cr_data->bak[i + 2] = 0xFFFFFFFF;
 874                                 cr_data->bak[i + 3] = 0xFFFFFFFF;
 875                                 i += 3;
 876                         }
 877                 }
 878
 879                 switch (cursor->rop) {
 880                 case ROP_XOR:
 881                         for (i = 0; i < size; i++)
 882                                 cr_data->data[i] = cursor->mask[i];
 883                         break;
 884                 case ROP_COPY:
 885
 886                         for (i = 0; i < size; i++)
 887                                 cr_data->data[i] = cursor->mask[i];
 888                         break;
 889                 default:
 890                         break;
 891                 }
 892
 893                 if (cur_size == 32) {
 894                         for (i = 0; i < size; i++) {
 895                                 cr_data->bak[j] = (u32) cr_data->data[i];
 896                                 cr_data->bak[j + 1] = ~cr_data->bak[j];
 897                                 j += 2;
 898                         }
 899                 } else {
 900                         for (i = 0; i < size; i++) {
 901                                 cr_data->bak[j] = (u32) cr_data->data[i];
 902                                 cr_data->bak[j + 1] = 0x0;
 903                                 cr_data->bak[j + 2] = ~cr_data->bak[j];
 904                                 cr_data->bak[j + 3] = ~cr_data->bak[j + 1];
 905                                 j += 4;
 906                         }
 907                 }
 908
 909                 memcpy_toio(viafbinfo->screen_base + viapar->shared->
 910                         cursor_vram_addr, cr_data->bak, CURSOR_SIZE);
 911                 kfree(cr_data);
 912         }
 913
 914         if (cursor->enable)
 915                 viafb_show_hw_cursor(info, HW_Cursor_ON);
 916
 917         return 0;
 918 }
 919
 920 static int viafb_sync(struct fb_info *info)
 921 {
 922         if (!(info->flags & FBINFO_HWACCEL_DISABLED))
 923                 viafb_wait_engine_idle(info);
 924         return 0;
 925 }
 926
 927 static int get_primary_device(void)
 928 {
 929         int primary_device = 0;
 930         /* Rule: device on iga1 path are the primary device. */
 931         if (viafb_SAMM_ON) {
 932                 if (viafb_CRT_ON) {
 933                         if (viaparinfo->shared->iga1_devices & VIA_CRT) {
 934                                 DEBUG_MSG(KERN_INFO "CRT IGA Path:%d\n", IGA1);
 935                                 primary_device = CRT_Device;
 936                         }
 937                 }
 938                 if (viafb_DVI_ON) {
 939                         if (viaparinfo->tmds_setting_info->iga_path == IGA1) {
 940                                 DEBUG_MSG(KERN_INFO "DVI IGA Path:%d\n",
 941                                         viaparinfo->
 942                                         tmds_setting_info->iga_path);
 943                                 primary_device = DVI_Device;
 944                         }
 945                 }
 946                 if (viafb_LCD_ON) {
 947                         if (viaparinfo->lvds_setting_info->iga_path == IGA1) {
 948                                 DEBUG_MSG(KERN_INFO "LCD IGA Path:%d\n",
 949                                         viaparinfo->
 950                                         lvds_setting_info->iga_path);
 951                                 primary_device = LCD_Device;
 952                         }
 953                 }
 954                 if (viafb_LCD2_ON) {
 955                         if (viaparinfo->lvds_setting_info2->iga_path == IGA1) {
 956                                 DEBUG_MSG(KERN_INFO "LCD2 IGA Path:%d\n",
 957                                         viaparinfo->
 958                                         lvds_setting_info2->iga_path);
 959                                 primary_device = LCD2_Device;
 960                         }
 961                 }
 962         }
 963         return primary_device;
 964 }
 965
 966 static void retrieve_device_setting(struct viafb_ioctl_setting
 967         *setting_info)
 968 {
 969
 970         /* get device status */
 971         if (viafb_CRT_ON == 1)
 972                 setting_info->device_status = CRT_Device;
 973         if (viafb_DVI_ON == 1)
 974                 setting_info->device_status |= DVI_Device;
 975         if (viafb_LCD_ON == 1)
 976                 setting_info->device_status |= LCD_Device;
 977         if (viafb_LCD2_ON == 1)
 978                 setting_info->device_status |= LCD2_Device;
 979
 980         setting_info->samm_status = viafb_SAMM_ON;
 981         setting_info->primary_device = get_primary_device();
 982
 983         setting_info->first_dev_bpp = viafb_bpp;
 984         setting_info->second_dev_bpp = viafb_bpp1;
 985
 986         setting_info->first_dev_refresh = viafb_refresh;
 987         setting_info->second_dev_refresh = viafb_refresh1;
 988
 989         setting_info->first_dev_hor_res = viafb_hotplug_Xres;
 990         setting_info->first_dev_ver_res = viafb_hotplug_Yres;
 991         setting_info->second_dev_hor_res = viafb_second_xres;
 992         setting_info->second_dev_ver_res = viafb_second_yres;
 993
 994         /* Get lcd attributes */
 995         setting_info->lcd_attributes.display_center = viafb_lcd_dsp_method;
 996         setting_info->lcd_attributes.panel_id = viafb_lcd_panel_id;
 997         setting_info->lcd_attributes.lcd_mode = viafb_lcd_mode;
 998 }
 999
1000 static int __init parse_active_dev(void)
1001 {
1002         viafb_CRT_ON = STATE_OFF;
1003         viafb_DVI_ON = STATE_OFF;
1004         viafb_LCD_ON = STATE_OFF;
1005         viafb_LCD2_ON = STATE_OFF;
1006         /* 1. Modify the active status of devices. */
1007         /* 2. Keep the order of devices, so we can set corresponding
1008            IGA path to devices in SAMM case. */
1009         /*    Note: The previous of active_dev is primary device,
1010            and the following is secondary device. */
1011         if (!viafb_active_dev) {
1012                 if (machine_is_olpc()) { /* LCD only */
1013                         viafb_LCD_ON = STATE_ON;
1014                         viafb_SAMM_ON = STATE_OFF;
1015                 } else {
1016                         viafb_CRT_ON = STATE_ON;
1017                         viafb_SAMM_ON = STATE_OFF;
1018                 }
1019         } else if (!strcmp(viafb_active_dev, "CRT+DVI")) {
1020                 /* CRT+DVI */
1021                 viafb_CRT_ON = STATE_ON;
1022                 viafb_DVI_ON = STATE_ON;
1023                 viafb_primary_dev = CRT_Device;
1024         } else if (!strcmp(viafb_active_dev, "DVI+CRT")) {
1025                 /* DVI+CRT */
1026                 viafb_CRT_ON = STATE_ON;
1027                 viafb_DVI_ON = STATE_ON;
1028                 viafb_primary_dev = DVI_Device;
1029         } else if (!strcmp(viafb_active_dev, "CRT+LCD")) {
1030                 /* CRT+LCD */
1031                 viafb_CRT_ON = STATE_ON;
1032                 viafb_LCD_ON = STATE_ON;
1033                 viafb_primary_dev = CRT_Device;
1034         } else if (!strcmp(viafb_active_dev, "LCD+CRT")) {
1035                 /* LCD+CRT */
1036                 viafb_CRT_ON = STATE_ON;
1037                 viafb_LCD_ON = STATE_ON;
1038                 viafb_primary_dev = LCD_Device;
1039         } else if (!strcmp(viafb_active_dev, "DVI+LCD")) {
1040                 /* DVI+LCD */
1041                 viafb_DVI_ON = STATE_ON;
1042                 viafb_LCD_ON = STATE_ON;
1043                 viafb_primary_dev = DVI_Device;
1044         } else if (!strcmp(viafb_active_dev, "LCD+DVI")) {
1045                 /* LCD+DVI */
1046                 viafb_DVI_ON = STATE_ON;
1047                 viafb_LCD_ON = STATE_ON;
1048                 viafb_primary_dev = LCD_Device;
1049         } else if (!strcmp(viafb_active_dev, "LCD+LCD2")) {
1050                 viafb_LCD_ON = STATE_ON;
1051                 viafb_LCD2_ON = STATE_ON;
1052                 viafb_primary_dev = LCD_Device;
1053         } else if (!strcmp(viafb_active_dev, "LCD2+LCD")) {
1054                 viafb_LCD_ON = STATE_ON;
1055                 viafb_LCD2_ON = STATE_ON;
1056                 viafb_primary_dev = LCD2_Device;
1057         } else if (!strcmp(viafb_active_dev, "CRT")) {
1058                 /* CRT only */
1059                 viafb_CRT_ON = STATE_ON;
1060                 viafb_SAMM_ON = STATE_OFF;
1061         } else if (!strcmp(viafb_active_dev, "DVI")) {
1062                 /* DVI only */
1063                 viafb_DVI_ON = STATE_ON;
1064                 viafb_SAMM_ON = STATE_OFF;
1065         } else if (!strcmp(viafb_active_dev, "LCD")) {
1066                 /* LCD only */
1067                 viafb_LCD_ON = STATE_ON;
1068                 viafb_SAMM_ON = STATE_OFF;
1069         } else
1070                 return -EINVAL;
1071
1072         return 0;
1073 }
1074
1075 static int parse_port(char *opt_str, int *output_interface)
1076 {
1077         if (!strncmp(opt_str, "DVP0", 4))
1078                 *output_interface = INTERFACE_DVP0;
1079         else if (!strncmp(opt_str, "DVP1", 4))
1080                 *output_interface = INTERFACE_DVP1;
1081         else if (!strncmp(opt_str, "DFP_HIGHLOW", 11))
1082                 *output_interface = INTERFACE_DFP;
1083         else if (!strncmp(opt_str, "DFP_HIGH", 8))
1084                 *output_interface = INTERFACE_DFP_HIGH;
1085         else if (!strncmp(opt_str, "DFP_LOW", 7))
1086                 *output_interface = INTERFACE_DFP_LOW;
1087         else
1088                 *output_interface = INTERFACE_NONE;
1089         return 0;
1090 }
1091
1092 static void parse_lcd_port(void)
1093 {
1094         parse_port(viafb_lcd_port, &viaparinfo->chip_info->lvds_chip_info.
1095                 output_interface);
1096         /*Initialize to avoid unexpected behavior */
1097         viaparinfo->chip_info->lvds_chip_info2.output_interface =
1098         INTERFACE_NONE;
1099
1100         DEBUG_MSG(KERN_INFO "parse_lcd_port: viafb_lcd_port:%s,interface:%d\n",
1101                   viafb_lcd_port, viaparinfo->chip_info->lvds_chip_info.
1102                   output_interface);
1103 }
1104
1105 static void parse_dvi_port(void)
1106 {
1107         parse_port(viafb_dvi_port, &viaparinfo->chip_info->tmds_chip_info.
1108                 output_interface);
1109
1110         DEBUG_MSG(KERN_INFO "parse_dvi_port: viafb_dvi_port:%s,interface:%d\n",
1111                   viafb_dvi_port, viaparinfo->chip_info->tmds_chip_info.
1112                   output_interface);
1113 }
1114
1115 #ifdef CONFIG_FB_VIA_DIRECT_PROCFS
1116
1117 /*
1118  * The proc filesystem read/write function, a simple proc implement to
1119  * get/set the value of DPA  DVP0,   DVP0DataDriving,  DVP0ClockDriving, DVP1,
1120  * DVP1Driving, DFPHigh, DFPLow CR96,   SR2A[5], SR1B[1], SR2A[4], SR1E[2],
1121  * CR9B,    SR65,    CR97,    CR99
1122  */
1123 static int viafb_dvp0_proc_show(struct seq_file *m, void *v)
1124 {
1125         u8 dvp0_data_dri = 0, dvp0_clk_dri = 0, dvp0 = 0;
1126         dvp0_data_dri =
1127             (viafb_read_reg(VIASR, SR2A) & BIT5) >> 4 |
1128             (viafb_read_reg(VIASR, SR1B) & BIT1) >> 1;
1129         dvp0_clk_dri =
1130             (viafb_read_reg(VIASR, SR2A) & BIT4) >> 3 |
1131             (viafb_read_reg(VIASR, SR1E) & BIT2) >> 2;
1132         dvp0 = viafb_read_reg(VIACR, CR96) & 0x0f;
1133         seq_printf(m, "%x %x %x\n", dvp0, dvp0_data_dri, dvp0_clk_dri);
1134         return 0;
1135 }
1136
1137 static int viafb_dvp0_proc_open(struct inode *inode, struct file *file)
1138 {
1139         return single_open(file, viafb_dvp0_proc_show, NULL);
1140 }
1141
1142 static ssize_t viafb_dvp0_proc_write(struct file *file,
1143         const char __user *buffer, size_t count, loff_t *pos)
1144 {
1145         char buf[20], *value, *pbuf;
1146         u8 reg_val = 0;
1147         unsigned long length, i;
1148         if (count < 1)
1149                 return -EINVAL;
1150         length = count > 20 ? 20 : count;
1151         if (copy_from_user(&buf[0], buffer, length))
1152                 return -EFAULT;
1153         buf[length - 1] = '\0'; /*Ensure end string */
1154         pbuf = &buf[0];
1155         for (i = 0; i < 3; i++) {
1156                 value = strsep(&pbuf, " ");
1157                 if (value != NULL) {
1158                         if (kstrtou8(value, 0, &reg_val) < 0)
1159                                 return -EINVAL;
1160                         DEBUG_MSG(KERN_INFO "DVP0:reg_val[%l]=:%x\n", i,
1161                                   reg_val);
1162                         switch (i) {
1163                         case 0:
1164                                 viafb_write_reg_mask(CR96, VIACR,
1165                                         reg_val, 0x0f);
1166                                 break;
1167                         case 1:
1168                                 viafb_write_reg_mask(SR2A, VIASR,
1169                                         reg_val << 4, BIT5);
1170                                 viafb_write_reg_mask(SR1B, VIASR,
1171                                         reg_val << 1, BIT1);
1172                                 break;
1173                         case 2:
1174                                 viafb_write_reg_mask(SR2A, VIASR,
1175                                         reg_val << 3, BIT4);
1176                                 viafb_write_reg_mask(SR1E, VIASR,
1177                                         reg_val << 2, BIT2);
1178                                 break;
1179                         default:
1180                                 break;
1181                         }
1182                 } else {
1183                         break;
1184                 }
1185         }
1186         return count;
1187 }
1188
1189 static const struct file_operations viafb_dvp0_proc_fops = {
1190         .owner          = THIS_MODULE,
1191         .open           = viafb_dvp0_proc_open,
1192         .read           = seq_read,
1193         .llseek         = seq_lseek,
1194         .release        = single_release,
1195         .write          = viafb_dvp0_proc_write,
1196 };
1197
1198 static int viafb_dvp1_proc_show(struct seq_file *m, void *v)
1199 {
1200         u8 dvp1 = 0, dvp1_data_dri = 0, dvp1_clk_dri = 0;
1201         dvp1 = viafb_read_reg(VIACR, CR9B) & 0x0f;
1202         dvp1_data_dri = (viafb_read_reg(VIASR, SR65) & 0x0c) >> 2;
1203         dvp1_clk_dri = viafb_read_reg(VIASR, SR65) & 0x03;
1204         seq_printf(m, "%x %x %x\n", dvp1, dvp1_data_dri, dvp1_clk_dri);
1205         return 0;
1206 }
1207
1208 static int viafb_dvp1_proc_open(struct inode *inode, struct file *file)
1209 {
1210         return single_open(file, viafb_dvp1_proc_show, NULL);
1211 }
1212
1213 static ssize_t viafb_dvp1_proc_write(struct file *file,
1214         const char __user *buffer, size_t count, loff_t *pos)
1215 {
1216         char buf[20], *value, *pbuf;
1217         u8 reg_val = 0;
1218         unsigned long length, i;
1219         if (count < 1)
1220                 return -EINVAL;
1221         length = count > 20 ? 20 : count;
1222         if (copy_from_user(&buf[0], buffer, length))
1223                 return -EFAULT;
1224         buf[length - 1] = '\0'; /*Ensure end string */
1225         pbuf = &buf[0];
1226         for (i = 0; i < 3; i++) {
1227                 value = strsep(&pbuf, " ");
1228                 if (value != NULL) {
1229                         if (kstrtou8(value, 0, &reg_val) < 0)
1230                                 return -EINVAL;
1231                         switch (i) {
1232                         case 0:
1233                                 viafb_write_reg_mask(CR9B, VIACR,
1234                                         reg_val, 0x0f);
1235                                 break;
1236                         case 1:
1237                                 viafb_write_reg_mask(SR65, VIASR,
1238                                         reg_val << 2, 0x0c);
1239                                 break;
1240                         case 2:
1241                                 viafb_write_reg_mask(SR65, VIASR,
1242                                         reg_val, 0x03);
1243                                 break;
1244                         default:
1245                                 break;
1246                         }
1247                 } else {
1248                         break;
1249                 }
1250         }
1251         return count;
1252 }
1253
1254 static const struct file_operations viafb_dvp1_proc_fops = {
1255         .owner          = THIS_MODULE,
1256         .open           = viafb_dvp1_proc_open,
1257         .read           = seq_read,
1258         .llseek         = seq_lseek,
1259         .release        = single_release,
1260         .write          = viafb_dvp1_proc_write,
1261 };
1262
1263 static int viafb_dfph_proc_show(struct seq_file *m, void *v)
1264 {
1265         u8 dfp_high = 0;
1266         dfp_high = viafb_read_reg(VIACR, CR97) & 0x0f;
1267         seq_printf(m, "%x\n", dfp_high);
1268         return 0;
1269 }
1270
1271 static int viafb_dfph_proc_open(struct inode *inode, struct file *file)
1272 {
1273         return single_open(file, viafb_dfph_proc_show, NULL);
1274 }
1275
1276 static ssize_t viafb_dfph_proc_write(struct file *file,
1277         const char __user *buffer, size_t count, loff_t *pos)
1278 {
1279         int err;
1280         u8 reg_val;
1281         err = kstrtou8_from_user(buffer, count, 0, &reg_val);
1282         if (err)
1283                 return err;
1284
1285         viafb_write_reg_mask(CR97, VIACR, reg_val, 0x0f);
1286         return count;
1287 }
1288
1289 static const struct file_operations viafb_dfph_proc_fops = {
1290         .owner          = THIS_MODULE,
1291         .open           = viafb_dfph_proc_open,
1292         .read           = seq_read,
1293         .llseek         = seq_lseek,
1294         .release        = single_release,
1295         .write          = viafb_dfph_proc_write,
1296 };
1297
1298 static int viafb_dfpl_proc_show(struct seq_file *m, void *v)
1299 {
1300         u8 dfp_low = 0;
1301         dfp_low = viafb_read_reg(VIACR, CR99) & 0x0f;
1302         seq_printf(m, "%x\n", dfp_low);
1303         return 0;
1304 }
1305
1306 static int viafb_dfpl_proc_open(struct inode *inode, struct file *file)
1307 {
1308         return single_open(file, viafb_dfpl_proc_show, NULL);
1309 }
1310
1311 static ssize_t viafb_dfpl_proc_write(struct file *file,
1312         const char __user *buffer, size_t count, loff_t *pos)
1313 {
1314         int err;
1315         u8 reg_val;
1316         err = kstrtou8_from_user(buffer, count, 0, &reg_val);
1317         if (err)
1318                 return err;
1319
1320         viafb_write_reg_mask(CR99, VIACR, reg_val, 0x0f);
1321         return count;
1322 }
1323
1324 static const struct file_operations viafb_dfpl_proc_fops = {
1325         .owner          = THIS_MODULE,
1326         .open           = viafb_dfpl_proc_open,
1327         .read           = seq_read,
1328         .llseek         = seq_lseek,
1329         .release        = single_release,
1330         .write          = viafb_dfpl_proc_write,
1331 };
1332
1333 static int viafb_vt1636_proc_show(struct seq_file *m, void *v)
1334 {
1335         u8 vt1636_08 = 0, vt1636_09 = 0;
1336         switch (viaparinfo->chip_info->lvds_chip_info.lvds_chip_name) {
1337         case VT1636_LVDS:
1338                 vt1636_08 =
1339                     viafb_gpio_i2c_read_lvds(viaparinfo->lvds_setting_info,
1340                     &viaparinfo->chip_info->lvds_chip_info, 0x08) & 0x0f;
1341                 vt1636_09 =
1342                     viafb_gpio_i2c_read_lvds(viaparinfo->lvds_setting_info,
1343                     &viaparinfo->chip_info->lvds_chip_info, 0x09) & 0x1f;
1344                 seq_printf(m, "%x %x\n", vt1636_08, vt1636_09);
1345                 break;
1346         default:
1347                 break;
1348         }
1349         switch (viaparinfo->chip_info->lvds_chip_info2.lvds_chip_name) {
1350         case VT1636_LVDS:
1351                 vt1636_08 =
1352                     viafb_gpio_i2c_read_lvds(viaparinfo->lvds_setting_info2,
1353                         &viaparinfo->chip_info->lvds_chip_info2, 0x08) & 0x0f;
1354                 vt1636_09 =
1355                     viafb_gpio_i2c_read_lvds(viaparinfo->lvds_setting_info2,
1356                         &viaparinfo->chip_info->lvds_chip_info2, 0x09) & 0x1f;
1357                 seq_printf(m, " %x %x\n", vt1636_08, vt1636_09);
1358                 break;
1359         default:
1360                 break;
1361         }
1362         return 0;
1363 }
1364
1365 static int viafb_vt1636_proc_open(struct inode *inode, struct file *file)
1366 {
1367         return single_open(file, viafb_vt1636_proc_show, NULL);
1368 }
1369
1370 static ssize_t viafb_vt1636_proc_write(struct file *file,
1371         const char __user *buffer, size_t count, loff_t *pos)
1372 {
1373         char buf[30], *value, *pbuf;
1374         struct IODATA reg_val;
1375         unsigned long length, i;
1376         if (count < 1)
1377                 return -EINVAL;
1378         length = count > 30 ? 30 : count;
1379         if (copy_from_user(&buf[0], buffer, length))
1380                 return -EFAULT;
1381         buf[length - 1] = '\0'; /*Ensure end string */
1382         pbuf = &buf[0];
1383         switch (viaparinfo->chip_info->lvds_chip_info.lvds_chip_name) {
1384         case VT1636_LVDS:
1385                 for (i = 0; i < 2; i++) {
1386                         value = strsep(&pbuf, " ");
1387                         if (value != NULL) {
1388                                 if (kstrtou8(value, 0, &reg_val.Data) < 0)
1389                                         return -EINVAL;
1390                                 switch (i) {
1391                                 case 0:
1392                                         reg_val.Index = 0x08;
1393                                         reg_val.Mask = 0x0f;
1394                                         viafb_gpio_i2c_write_mask_lvds
1395                                             (viaparinfo->lvds_setting_info,
1396                                             &viaparinfo->
1397                                             chip_info->lvds_chip_info,
1398                                              reg_val);
1399                                         break;
1400                                 case 1:
1401                                         reg_val.Index = 0x09;
1402                                         reg_val.Mask = 0x1f;
1403                                         viafb_gpio_i2c_write_mask_lvds
1404                                             (viaparinfo->lvds_setting_info,
1405                                             &viaparinfo->
1406                                             chip_info->lvds_chip_info,
1407                                              reg_val);
1408                                         break;
1409                                 default:
1410                                         break;
1411                                 }
1412                         } else {
1413                                 break;
1414                         }
1415                 }
1416                 break;
1417         default:
1418                 break;
1419         }
1420         switch (viaparinfo->chip_info->lvds_chip_info2.lvds_chip_name) {
1421         case VT1636_LVDS:
1422                 for (i = 0; i < 2; i++) {
1423                         value = strsep(&pbuf, " ");
1424                         if (value != NULL) {
1425                                 if (kstrtou8(value, 0, &reg_val.Data) < 0)
1426                                         return -EINVAL;
1427                                 switch (i) {
1428                                 case 0:
1429                                         reg_val.Index = 0x08;
1430                                         reg_val.Mask = 0x0f;
1431                                         viafb_gpio_i2c_write_mask_lvds
1432                                             (viaparinfo->lvds_setting_info2,
1433                                             &viaparinfo->
1434                                             chip_info->lvds_chip_info2,
1435                                              reg_val);
1436                                         break;
1437                                 case 1:
1438                                         reg_val.Index = 0x09;
1439                                         reg_val.Mask = 0x1f;
1440                                         viafb_gpio_i2c_write_mask_lvds
1441                                             (viaparinfo->lvds_setting_info2,
1442                                             &viaparinfo->
1443                                             chip_info->lvds_chip_info2,
1444                                              reg_val);
1445                                         break;
1446                                 default:
1447                                         break;
1448                                 }
1449                         } else {
1450                                 break;
1451                         }
1452                 }
1453                 break;
1454         default:
1455                 break;
1456         }
1457         return count;
1458 }
1459
1460 static const struct file_operations viafb_vt1636_proc_fops = {
1461         .owner          = THIS_MODULE,
1462         .open           = viafb_vt1636_proc_open,
1463         .read           = seq_read,
1464         .llseek         = seq_lseek,
1465         .release        = single_release,
1466         .write          = viafb_vt1636_proc_write,
1467 };
1468
1469 #endif /* CONFIG_FB_VIA_DIRECT_PROCFS */
1470
1471 static int viafb_sup_odev_proc_show(struct seq_file *m, void *v)
1472 {
1473         via_odev_to_seq(m, supported_odev_map[
1474                 viaparinfo->shared->chip_info.gfx_chip_name]);
1475         return 0;
1476 }
1477
1478 static ssize_t odev_update(const char __user *buffer, size_t count, u32 *odev)
1479 {
1480         char buf[64], *ptr = buf;
1481         u32 devices;
1482         bool add, sub;
1483
1484         if (count < 1 || count > 63)
1485                 return -EINVAL;
1486         if (copy_from_user(&buf[0], buffer, count))
1487                 return -EFAULT;
1488         buf[count] = '\0';
1489         add = buf[0] == '+';
1490         sub = buf[0] == '-';
1491         if (add || sub)
1492                 ptr++;
1493         devices = via_parse_odev(ptr, &ptr);
1494         if (*ptr == '\n')
1495                 ptr++;
1496         if (*ptr != 0)
1497                 return -EINVAL;
1498         if (add)
1499                 *odev |= devices;
1500         else if (sub)
1501                 *odev &= ~devices;
1502         else
1503                 *odev = devices;
1504         return count;
1505 }
1506
1507 static int viafb_iga1_odev_proc_show(struct seq_file *m, void *v)
1508 {
1509         via_odev_to_seq(m, viaparinfo->shared->iga1_devices);
1510         return 0;
1511 }
1512
1513 static int viafb_iga1_odev_proc_open(struct inode *inode, struct file *file)
1514 {
1515         return single_open(file, viafb_iga1_odev_proc_show, NULL);
1516 }
1517
1518 static ssize_t viafb_iga1_odev_proc_write(struct file *file,
1519         const char __user *buffer, size_t count, loff_t *pos)
1520 {
1521         u32 dev_on, dev_off, dev_old, dev_new;
1522         ssize_t res;
1523
1524         dev_old = dev_new = viaparinfo->shared->iga1_devices;
1525         res = odev_update(buffer, count, &dev_new);
1526         if (res != count)
1527                 return res;
1528         dev_off = dev_old & ~dev_new;
1529         dev_on = dev_new & ~dev_old;
1530         viaparinfo->shared->iga1_devices = dev_new;
1531         viaparinfo->shared->iga2_devices &= ~dev_new;
1532         via_set_state(dev_off, VIA_STATE_OFF);
1533         via_set_source(dev_new, IGA1);
1534         via_set_state(dev_on, VIA_STATE_ON);
1535         return res;
1536 }
1537
1538 static const struct file_operations viafb_iga1_odev_proc_fops = {
1539         .owner          = THIS_MODULE,
1540         .open           = viafb_iga1_odev_proc_open,
1541         .read           = seq_read,
1542         .llseek         = seq_lseek,
1543         .release        = single_release,
1544         .write          = viafb_iga1_odev_proc_write,
1545 };
1546
1547 static int viafb_iga2_odev_proc_show(struct seq_file *m, void *v)
1548 {
1549         via_odev_to_seq(m, viaparinfo->shared->iga2_devices);
1550         return 0;
1551 }
1552
1553 static int viafb_iga2_odev_proc_open(struct inode *inode, struct file *file)
1554 {
1555         return single_open(file, viafb_iga2_odev_proc_show, NULL);
1556 }
1557
1558 static ssize_t viafb_iga2_odev_proc_write(struct file *file,
1559         const char __user *buffer, size_t count, loff_t *pos)
1560 {
1561         u32 dev_on, dev_off, dev_old, dev_new;
1562         ssize_t res;
1563
1564         dev_old = dev_new = viaparinfo->shared->iga2_devices;
1565         res = odev_update(buffer, count, &dev_new);
1566         if (res != count)
1567                 return res;
1568         dev_off = dev_old & ~dev_new;
1569         dev_on = dev_new & ~dev_old;
1570         viaparinfo->shared->iga2_devices = dev_new;
1571         viaparinfo->shared->iga1_devices &= ~dev_new;
1572         via_set_state(dev_off, VIA_STATE_OFF);
1573         via_set_source(dev_new, IGA2);
1574         via_set_state(dev_on, VIA_STATE_ON);
1575         return res;
1576 }
1577
1578 static const struct file_operations viafb_iga2_odev_proc_fops = {
1579         .owner          = THIS_MODULE,
1580         .open           = viafb_iga2_odev_proc_open,
1581         .read           = seq_read,
1582         .llseek         = seq_lseek,
1583         .release        = single_release,
1584         .write          = viafb_iga2_odev_proc_write,
1585 };
1586
1587 #define IS_VT1636(lvds_chip)    ((lvds_chip).lvds_chip_name == VT1636_LVDS)
1588 static void viafb_init_proc(struct viafb_shared *shared)
1589 {
1590         struct proc_dir_entry *iga1_entry, *iga2_entry,
1591                 *viafb_entry = proc_mkdir("viafb", NULL);
1592
1593         shared->proc_entry = viafb_entry;
1594         if (viafb_entry) {
1595 #ifdef CONFIG_FB_VIA_DIRECT_PROCFS
1596                 proc_create("dvp0", 0, viafb_entry, &viafb_dvp0_proc_fops);
1597                 proc_create("dvp1", 0, viafb_entry, &viafb_dvp1_proc_fops);
1598                 proc_create("dfph", 0, viafb_entry, &viafb_dfph_proc_fops);
1599                 proc_create("dfpl", 0, viafb_entry, &viafb_dfpl_proc_fops);
1600                 if (IS_VT1636(shared->chip_info.lvds_chip_info)
1601                         || IS_VT1636(shared->chip_info.lvds_chip_info2))
1602                         proc_create("vt1636", 0, viafb_entry,
1603                                 &viafb_vt1636_proc_fops);
1604 #endif /* CONFIG_FB_VIA_DIRECT_PROCFS */
1605
1606                 proc_create_single("supported_output_devices", 0, viafb_entry,
1607                         viafb_sup_odev_proc_show);
1608                 iga1_entry = proc_mkdir("iga1", viafb_entry);
1609                 shared->iga1_proc_entry = iga1_entry;
1610                 proc_create("output_devices", 0, iga1_entry,
1611                         &viafb_iga1_odev_proc_fops);
1612                 iga2_entry = proc_mkdir("iga2", viafb_entry);
1613                 shared->iga2_proc_entry = iga2_entry;
1614                 proc_create("output_devices", 0, iga2_entry,
1615                         &viafb_iga2_odev_proc_fops);
1616         }
1617 }
1618 static void viafb_remove_proc(struct viafb_shared *shared)
1619 {
1620         struct proc_dir_entry *viafb_entry = shared->proc_entry;
1621
1622         if (!viafb_entry)
1623                 return;
1624
1625         remove_proc_entry("output_devices", shared->iga2_proc_entry);
1626         remove_proc_entry("iga2", viafb_entry);
1627         remove_proc_entry("output_devices", shared->iga1_proc_entry);
1628         remove_proc_entry("iga1", viafb_entry);
1629         remove_proc_entry("supported_output_devices", viafb_entry);
1630
1631 #ifdef CONFIG_FB_VIA_DIRECT_PROCFS
1632         remove_proc_entry("dvp0", viafb_entry);/* parent dir */
1633         remove_proc_entry("dvp1", viafb_entry);
1634         remove_proc_entry("dfph", viafb_entry);
1635         remove_proc_entry("dfpl", viafb_entry);
1636         if (IS_VT1636(shared->chip_info.lvds_chip_info)
1637                 || IS_VT1636(shared->chip_info.lvds_chip_info2))
1638                 remove_proc_entry("vt1636", viafb_entry);
1639 #endif /* CONFIG_FB_VIA_DIRECT_PROCFS */
1640
1641         remove_proc_entry("viafb", NULL);
1642 }
1643 #undef IS_VT1636
1644
1645 static int parse_mode(const char *str, u32 devices, u32 *xres, u32 *yres)
1646 {
1647         const struct fb_videomode *mode = NULL;
1648         char *ptr;
1649
1650         if (!str) {
1651                 if (devices == VIA_CRT)
1652                         mode = via_aux_get_preferred_mode(
1653                                 viaparinfo->shared->i2c_26);
1654                 else if (devices == VIA_DVP1)
1655                         mode = via_aux_get_preferred_mode(
1656                                 viaparinfo->shared->i2c_31);
1657
1658                 if (mode) {
1659                         *xres = mode->xres;
1660                         *yres = mode->yres;
1661                 } else if (machine_is_olpc()) {
1662                         *xres = 1200;
1663                         *yres = 900;
1664                 } else {
1665                         *xres = 640;
1666                         *yres = 480;
1667                 }
1668                 return 0;
1669         }
1670
1671         *xres = simple_strtoul(str, &ptr, 10);
1672         if (ptr[0] != 'x')
1673                 return -EINVAL;
1674
1675         *yres = simple_strtoul(&ptr[1], &ptr, 10);
1676         if (ptr[0])
1677                 return -EINVAL;
1678
1679         return 0;
1680 }
1681
1682
1683 #ifdef CONFIG_PM
1684 static int viafb_suspend(void *unused)
1685 {
1686         console_lock();
1687         fb_set_suspend(viafbinfo, 1);
1688         viafb_sync(viafbinfo);
1689         console_unlock();
1690
1691         return 0;
1692 }
1693
1694 static int viafb_resume(void *unused)
1695 {
1696         console_lock();
1697         if (viaparinfo->shared->vdev->engine_mmio)
1698                 viafb_reset_engine(viaparinfo);
1699         viafb_set_par(viafbinfo);
1700         if (viafb_dual_fb)
1701                 viafb_set_par(viafbinfo1);
1702         fb_set_suspend(viafbinfo, 0);
1703
1704         console_unlock();
1705         return 0;
1706 }
1707
1708 static struct viafb_pm_hooks viafb_fb_pm_hooks = {
1709         .suspend = viafb_suspend,
1710         .resume = viafb_resume
1711 };
1712
1713 #endif
1714
1715 static void i2c_bus_probe(struct viafb_shared *shared)
1716 {
1717         /* should be always CRT */
1718         printk(KERN_INFO "viafb: Probing I2C bus 0x26\n");
1719         shared->i2c_26 = via_aux_probe(viafb_find_i2c_adapter(VIA_PORT_26));
1720
1721         /* seems to be usually DVP1 */
1722         printk(KERN_INFO "viafb: Probing I2C bus 0x31\n");
1723         shared->i2c_31 = via_aux_probe(viafb_find_i2c_adapter(VIA_PORT_31));
1724
1725         /* FIXME: what is this? */
1726         if (!machine_is_olpc()) {
1727                 printk(KERN_INFO "viafb: Probing I2C bus 0x2C\n");
1728                 shared->i2c_2C = via_aux_probe(viafb_find_i2c_adapter(VIA_PORT_2C));
1729         }
1730
1731         printk(KERN_INFO "viafb: Finished I2C bus probing");
1732 }
1733
1734 static void i2c_bus_free(struct viafb_shared *shared)
1735 {
1736         via_aux_free(shared->i2c_26);
1737         via_aux_free(shared->i2c_31);
1738         via_aux_free(shared->i2c_2C);
1739 }
1740
1741 int via_fb_pci_probe(struct viafb_dev *vdev)
1742 {
1743         u32 default_xres, default_yres;
1744         struct fb_var_screeninfo default_var;
1745         int rc;
1746         u32 viafb_par_length;
1747
1748         DEBUG_MSG(KERN_INFO "VIAFB PCI Probe!!\n");
1749         memset(&default_var, 0, sizeof(default_var));
1750         viafb_par_length = ALIGN(sizeof(struct viafb_par), BITS_PER_LONG/8);
1751
1752         /* Allocate fb_info and ***_par here, also including some other needed
1753          * variables
1754         */
1755         viafbinfo = framebuffer_alloc(viafb_par_length +
1756                 ALIGN(sizeof(struct viafb_shared), BITS_PER_LONG/8),
1757                 &vdev->pdev->dev);
1758         if (!viafbinfo) {
1759                 printk(KERN_ERR"Could not allocate memory for viafb_info.\n");
1760                 return -ENOMEM;
1761         }
1762
1763         viaparinfo = (struct viafb_par *)viafbinfo->par;
1764         viaparinfo->shared = viafbinfo->par + viafb_par_length;
1765         viaparinfo->shared->vdev = vdev;
1766         viaparinfo->vram_addr = 0;
1767         viaparinfo->tmds_setting_info = &viaparinfo->shared->tmds_setting_info;
1768         viaparinfo->lvds_setting_info = &viaparinfo->shared->lvds_setting_info;
1769         viaparinfo->lvds_setting_info2 =
1770                 &viaparinfo->shared->lvds_setting_info2;
1771         viaparinfo->chip_info = &viaparinfo->shared->chip_info;
1772
1773         i2c_bus_probe(viaparinfo->shared);
1774         if (viafb_dual_fb)
1775                 viafb_SAMM_ON = 1;
1776         parse_lcd_port();
1777         parse_dvi_port();
1778
1779         viafb_init_chip_info(vdev->chip_type);
1780         /*
1781          * The framebuffer will have been successfully mapped by
1782          * the core (or we'd not be here), but we still need to
1783          * set up our own accounting.
1784          */
1785         viaparinfo->fbmem = vdev->fbmem_start;
1786         viaparinfo->memsize = vdev->fbmem_len;
1787         viaparinfo->fbmem_free = viaparinfo->memsize;
1788         viaparinfo->fbmem_used = 0;
1789         viafbinfo->screen_base = vdev->fbmem;
1790
1791         viafbinfo->fix.mmio_start = vdev->engine_start;
1792         viafbinfo->fix.mmio_len = vdev->engine_len;
1793         viafbinfo->node = 0;
1794         viafbinfo->fbops = &viafb_ops;
1795         viafbinfo->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN;
1796
1797         viafbinfo->pseudo_palette = pseudo_pal;
1798         if (viafb_accel && !viafb_setup_engine(viafbinfo)) {
1799                 viafbinfo->flags |= FBINFO_HWACCEL_COPYAREA |
1800                         FBINFO_HWACCEL_FILLRECT |  FBINFO_HWACCEL_IMAGEBLIT;
1801                 default_var.accel_flags = FB_ACCELF_TEXT;
1802         } else {
1803                 viafbinfo->flags |= FBINFO_HWACCEL_DISABLED;
1804                 default_var.accel_flags = 0;
1805         }
1806
1807         if (viafb_second_size && (viafb_second_size < 8)) {
1808                 viafb_second_offset = viaparinfo->fbmem_free -
1809                         viafb_second_size * 1024 * 1024;
1810         } else {
1811                 viafb_second_size = 8;
1812                 viafb_second_offset = viaparinfo->fbmem_free -
1813                         viafb_second_size * 1024 * 1024;
1814         }
1815
1816         parse_mode(viafb_mode, viaparinfo->shared->iga1_devices,
1817                 &default_xres, &default_yres);
1818         if (viafb_SAMM_ON == 1)
1819                 parse_mode(viafb_mode1, viaparinfo->shared->iga2_devices,
1820                         &viafb_second_xres, &viafb_second_yres);
1821
1822         default_var.xres = default_xres;
1823         default_var.yres = default_yres;
1824         default_var.xres_virtual = default_xres;
1825         default_var.yres_virtual = default_yres;
1826         default_var.bits_per_pixel = viafb_bpp;
1827         viafb_fill_var_timing_info(&default_var, viafb_get_best_mode(
1828                 default_var.xres, default_var.yres, viafb_refresh));
1829         viafb_setup_fixinfo(&viafbinfo->fix, viaparinfo);
1830         viafbinfo->var = default_var;
1831
1832         if (viafb_dual_fb) {
1833                 viafbinfo1 = framebuffer_alloc(viafb_par_length,
1834                                 &vdev->pdev->dev);
1835                 if (!viafbinfo1) {
1836                         printk(KERN_ERR
1837                         "allocate the second framebuffer struct error\n");
1838                         rc = -ENOMEM;
1839                         goto out_fb_release;
1840                 }
1841                 viaparinfo1 = viafbinfo1->par;
1842                 memcpy(viaparinfo1, viaparinfo, viafb_par_length);
1843                 viaparinfo1->vram_addr = viafb_second_offset;
1844                 viaparinfo1->memsize = viaparinfo->memsize -
1845                         viafb_second_offset;
1846                 viaparinfo->memsize = viafb_second_offset;
1847                 viaparinfo1->fbmem = viaparinfo->fbmem + viafb_second_offset;
1848
1849                 viaparinfo1->fbmem_used = viaparinfo->fbmem_used;
1850                 viaparinfo1->fbmem_free = viaparinfo1->memsize -
1851                         viaparinfo1->fbmem_used;
1852                 viaparinfo->fbmem_free = viaparinfo->memsize;
1853                 viaparinfo->fbmem_used = 0;
1854
1855                 viaparinfo->iga_path = IGA1;
1856                 viaparinfo1->iga_path = IGA2;
1857                 memcpy(viafbinfo1, viafbinfo, sizeof(struct fb_info));
1858                 viafbinfo1->par = viaparinfo1;
1859                 viafbinfo1->screen_base = viafbinfo->screen_base +
1860                         viafb_second_offset;
1861
1862                 default_var.xres = viafb_second_xres;
1863                 default_var.yres = viafb_second_yres;
1864                 default_var.xres_virtual = viafb_second_xres;
1865                 default_var.yres_virtual = viafb_second_yres;
1866                 default_var.bits_per_pixel = viafb_bpp1;
1867                 viafb_fill_var_timing_info(&default_var, viafb_get_best_mode(
1868                         default_var.xres, default_var.yres, viafb_refresh1));
1869
1870                 viafb_setup_fixinfo(&viafbinfo1->fix, viaparinfo1);
1871                 viafb_check_var(&default_var, viafbinfo1);
1872                 viafbinfo1->var = default_var;
1873                 viafb_update_fix(viafbinfo1);
1874                 viaparinfo1->depth = fb_get_color_depth(&viafbinfo1->var,
1875                         &viafbinfo1->fix);
1876         }
1877
1878         viafb_check_var(&viafbinfo->var, viafbinfo);
1879         viafb_update_fix(viafbinfo);
1880         viaparinfo->depth = fb_get_color_depth(&viafbinfo->var,
1881                 &viafbinfo->fix);
1882         default_var.activate = FB_ACTIVATE_NOW;
1883         rc = fb_alloc_cmap(&viafbinfo->cmap, 256, 0);
1884         if (rc)
1885                 goto out_fb1_release;
1886
1887         if (viafb_dual_fb && (viafb_primary_dev == LCD_Device)
1888             && (viaparinfo->chip_info->gfx_chip_name == UNICHROME_CLE266)) {
1889                 rc = register_framebuffer(viafbinfo1);
1890                 if (rc)
1891                         goto out_dealloc_cmap;
1892         }
1893         rc = register_framebuffer(viafbinfo);
1894         if (rc)
1895                 goto out_fb1_unreg_lcd_cle266;
1896
1897         if (viafb_dual_fb && ((viafb_primary_dev != LCD_Device)
1898                         || (viaparinfo->chip_info->gfx_chip_name !=
1899                         UNICHROME_CLE266))) {
1900                 rc = register_framebuffer(viafbinfo1);
1901                 if (rc)
1902                         goto out_fb_unreg;
1903         }
1904         DEBUG_MSG(KERN_INFO "fb%d: %s frame buffer device %dx%d-%dbpp\n",
1905                   viafbinfo->node, viafbinfo->fix.id, default_var.xres,
1906                   default_var.yres, default_var.bits_per_pixel);
1907
1908         viafb_init_proc(viaparinfo->shared);
1909         viafb_init_dac(IGA2);
1910
1911 #ifdef CONFIG_PM
1912         viafb_pm_register(&viafb_fb_pm_hooks);
1913 #endif
1914         return 0;
1915
1916 out_fb_unreg:
1917         unregister_framebuffer(viafbinfo);
1918 out_fb1_unreg_lcd_cle266:
1919         if (viafb_dual_fb && (viafb_primary_dev == LCD_Device)
1920             && (viaparinfo->chip_info->gfx_chip_name == UNICHROME_CLE266))
1921                 unregister_framebuffer(viafbinfo1);
1922 out_dealloc_cmap:
1923         fb_dealloc_cmap(&viafbinfo->cmap);
1924 out_fb1_release:
1925         framebuffer_release(viafbinfo1);
1926 out_fb_release:
1927         i2c_bus_free(viaparinfo->shared);
1928         framebuffer_release(viafbinfo);
1929         return rc;
1930 }
1931
1932 void via_fb_pci_remove(struct pci_dev *pdev)
1933 {
1934         DEBUG_MSG(KERN_INFO "via_pci_remove!\n");
1935         fb_dealloc_cmap(&viafbinfo->cmap);
1936         unregister_framebuffer(viafbinfo);
1937         if (viafb_dual_fb)
1938                 unregister_framebuffer(viafbinfo1);
1939         viafb_remove_proc(viaparinfo->shared);
1940         i2c_bus_free(viaparinfo->shared);
1941         framebuffer_release(viafbinfo);
1942         if (viafb_dual_fb)
1943                 framebuffer_release(viafbinfo1);
1944 }
1945
1946 #ifndef MODULE
1947 static int __init viafb_setup(void)
1948 {
1949         char *this_opt;
1950         char *options;
1951
1952         DEBUG_MSG(KERN_INFO "viafb_setup!\n");
1953
1954         if (fb_get_options("viafb", &options))
1955                 return -ENODEV;
1956
1957         if (!options || !*options)
1958                 return 0;
1959
1960         while ((this_opt = strsep(&options, ",")) != NULL) {
1961                 if (!*this_opt)
1962                         continue;
1963
1964                 if (!strncmp(this_opt, "viafb_mode1=", 12)) {
1965                         viafb_mode1 = kstrdup(this_opt + 12, GFP_KERNEL);
1966                 } else if (!strncmp(this_opt, "viafb_mode=", 11)) {
1967                         viafb_mode = kstrdup(this_opt + 11, GFP_KERNEL);
1968                 } else if (!strncmp(this_opt, "viafb_bpp1=", 11)) {
1969                         if (kstrtouint(this_opt + 11, 0, &viafb_bpp1) < 0)
1970                                 return -EINVAL;
1971                 } else if (!strncmp(this_opt, "viafb_bpp=", 10)) {
1972                         if (kstrtouint(this_opt + 10, 0, &viafb_bpp) < 0)
1973                                 return -EINVAL;
1974                 } else if (!strncmp(this_opt, "viafb_refresh1=", 15)) {
1975                         if (kstrtoint(this_opt + 15, 0, &viafb_refresh1) < 0)
1976                                 return -EINVAL;
1977                 } else if (!strncmp(this_opt, "viafb_refresh=", 14)) {
1978                         if (kstrtoint(this_opt + 14, 0, &viafb_refresh) < 0)
1979                                 return -EINVAL;
1980                 } else if (!strncmp(this_opt, "viafb_lcd_dsp_method=", 21)) {
1981                         if (kstrtoint(this_opt + 21, 0,
1982                                       &viafb_lcd_dsp_method) < 0)
1983                                 return -EINVAL;
1984                 } else if (!strncmp(this_opt, "viafb_lcd_panel_id=", 19)) {
1985                         if (kstrtoint(this_opt + 19, 0,
1986                                       &viafb_lcd_panel_id) < 0)
1987                                 return -EINVAL;
1988                 } else if (!strncmp(this_opt, "viafb_accel=", 12)) {
1989                         if (kstrtoint(this_opt + 12, 0, &viafb_accel) < 0)
1990                                 return -EINVAL;
1991                 } else if (!strncmp(this_opt, "viafb_SAMM_ON=", 14)) {
1992                         if (kstrtoint(this_opt + 14, 0, &viafb_SAMM_ON) < 0)
1993                                 return -EINVAL;
1994                 } else if (!strncmp(this_opt, "viafb_active_dev=", 17)) {
1995                         viafb_active_dev = kstrdup(this_opt + 17, GFP_KERNEL);
1996                 } else if (!strncmp(this_opt,
1997                         "viafb_display_hardware_layout=", 30)) {
1998                         if (kstrtoint(this_opt + 30, 0,
1999                                       &viafb_display_hardware_layout) < 0)
2000                                 return -EINVAL;
2001                 } else if (!strncmp(this_opt, "viafb_second_size=", 18)) {
2002                         if (kstrtoint(this_opt + 18, 0, &viafb_second_size) < 0)
2003                                 return -EINVAL;
2004                 } else if (!strncmp(this_opt,
2005                         "viafb_platform_epia_dvi=", 24)) {
2006                         if (kstrtoint(this_opt + 24, 0,
2007                                       &viafb_platform_epia_dvi) < 0)
2008                                 return -EINVAL;
2009                 } else if (!strncmp(this_opt,
2010                         "viafb_device_lcd_dualedge=", 26)) {
2011                         if (kstrtoint(this_opt + 26, 0,
2012                                       &viafb_device_lcd_dualedge) < 0)
2013                                 return -EINVAL;
2014                 } else if (!strncmp(this_opt, "viafb_bus_width=", 16)) {
2015                         if (kstrtoint(this_opt + 16, 0, &viafb_bus_width) < 0)
2016                                 return -EINVAL;
2017                 } else if (!strncmp(this_opt, "viafb_lcd_mode=", 15)) {
2018                         if (kstrtoint(this_opt + 15, 0, &viafb_lcd_mode) < 0)
2019                                 return -EINVAL;
2020                 } else if (!strncmp(this_opt, "viafb_lcd_port=", 15)) {
2021                         viafb_lcd_port = kstrdup(this_opt + 15, GFP_KERNEL);
2022                 } else if (!strncmp(this_opt, "viafb_dvi_port=", 15)) {
2023                         viafb_dvi_port = kstrdup(this_opt + 15, GFP_KERNEL);
2024                 }
2025         }
2026         return 0;
2027 }
2028 #endif
2029
2030 /*
2031  * These are called out of via-core for now.
2032  */
2033 int __init viafb_init(void)
2034 {
2035         u32 dummy_x, dummy_y;
2036         int r = 0;
2037
2038         if (machine_is_olpc())
2039                 /* Apply XO-1.5-specific configuration. */
2040                 viafb_lcd_panel_id = 23;
2041
2042 #ifndef MODULE
2043         r = viafb_setup();
2044         if (r < 0)
2045                 return r;
2046 #endif
2047         if (parse_mode(viafb_mode, 0, &dummy_x, &dummy_y)
2048                 || !viafb_get_best_mode(dummy_x, dummy_y, viafb_refresh)
2049                 || parse_mode(viafb_mode1, 0, &dummy_x, &dummy_y)
2050                 || !viafb_get_best_mode(dummy_x, dummy_y, viafb_refresh1)
2051                 || viafb_bpp < 0 || viafb_bpp > 32
2052                 || viafb_bpp1 < 0 || viafb_bpp1 > 32
2053                 || parse_active_dev())
2054                 return -EINVAL;
2055
2056         printk(KERN_INFO
2057        "VIA Graphics Integration Chipset framebuffer %d.%d initializing\n",
2058                VERSION_MAJOR, VERSION_MINOR);
2059         return r;
2060 }
2061
2062 void __exit viafb_exit(void)
2063 {
2064         DEBUG_MSG(KERN_INFO "viafb_exit!\n");
2065 }
2066
2067 static struct fb_ops viafb_ops = {
2068         .owner = THIS_MODULE,
2069         .fb_open = viafb_open,
2070         .fb_release = viafb_release,
2071         .fb_check_var = viafb_check_var,
2072         .fb_set_par = viafb_set_par,
2073         .fb_setcolreg = viafb_setcolreg,
2074         .fb_pan_display = viafb_pan_display,
2075         .fb_blank = viafb_blank,
2076         .fb_fillrect = viafb_fillrect,
2077         .fb_copyarea = viafb_copyarea,
2078         .fb_imageblit = viafb_imageblit,
2079         .fb_cursor = viafb_cursor,
2080         .fb_ioctl = viafb_ioctl,
2081         .fb_sync = viafb_sync,
2082 };
2083
2084
2085 #ifdef MODULE
2086 module_param(viafb_mode, charp, S_IRUSR);
2087 MODULE_PARM_DESC(viafb_mode, "Set resolution (default=640x480)");
2088
2089 module_param(viafb_mode1, charp, S_IRUSR);
2090 MODULE_PARM_DESC(viafb_mode1, "Set resolution (default=640x480)");
2091
2092 module_param(viafb_bpp, int, S_IRUSR);
2093 MODULE_PARM_DESC(viafb_bpp, "Set color depth (default=32bpp)");
2094
2095 module_param(viafb_bpp1, int, S_IRUSR);
2096 MODULE_PARM_DESC(viafb_bpp1, "Set color depth (default=32bpp)");
2097
2098 module_param(viafb_refresh, int, S_IRUSR);
2099 MODULE_PARM_DESC(viafb_refresh,
2100         "Set CRT viafb_refresh rate (default = 60)");
2101
2102 module_param(viafb_refresh1, int, S_IRUSR);
2103 MODULE_PARM_DESC(viafb_refresh1,
2104         "Set CRT refresh rate (default = 60)");
2105
2106 module_param(viafb_lcd_panel_id, int, S_IRUSR);
2107 MODULE_PARM_DESC(viafb_lcd_panel_id,
2108         "Set Flat Panel type(Default=1024x768)");
2109
2110 module_param(viafb_lcd_dsp_method, int, S_IRUSR);
2111 MODULE_PARM_DESC(viafb_lcd_dsp_method,
2112         "Set Flat Panel display scaling method.(Default=Expandsion)");
2113
2114 module_param(viafb_SAMM_ON, int, S_IRUSR);
2115 MODULE_PARM_DESC(viafb_SAMM_ON,
2116         "Turn on/off flag of SAMM(Default=OFF)");
2117
2118 module_param(viafb_accel, int, S_IRUSR);
2119 MODULE_PARM_DESC(viafb_accel,
2120         "Set 2D Hardware Acceleration: 0 = OFF, 1 = ON (default)");
2121
2122 module_param(viafb_active_dev, charp, S_IRUSR);
2123 MODULE_PARM_DESC(viafb_active_dev, "Specify active devices.");
2124
2125 module_param(viafb_display_hardware_layout, int, S_IRUSR);
2126 MODULE_PARM_DESC(viafb_display_hardware_layout,
2127         "Display Hardware Layout (LCD Only, DVI Only...,etc)");
2128
2129 module_param(viafb_second_size, int, S_IRUSR);
2130 MODULE_PARM_DESC(viafb_second_size,
2131         "Set secondary device memory size");
2132
2133 module_param(viafb_dual_fb, int, S_IRUSR);
2134 MODULE_PARM_DESC(viafb_dual_fb,
2135         "Turn on/off flag of dual framebuffer devices.(Default = OFF)");
2136
2137 module_param(viafb_platform_epia_dvi, int, S_IRUSR);
2138 MODULE_PARM_DESC(viafb_platform_epia_dvi,
2139         "Turn on/off flag of DVI devices on EPIA board.(Default = OFF)");
2140
2141 module_param(viafb_device_lcd_dualedge, int, S_IRUSR);
2142 MODULE_PARM_DESC(viafb_device_lcd_dualedge,
2143         "Turn on/off flag of dual edge panel.(Default = OFF)");
2144
2145 module_param(viafb_bus_width, int, S_IRUSR);
2146 MODULE_PARM_DESC(viafb_bus_width,
2147         "Set bus width of panel.(Default = 12)");
2148
2149 module_param(viafb_lcd_mode, int, S_IRUSR);
2150 MODULE_PARM_DESC(viafb_lcd_mode,
2151         "Set Flat Panel mode(Default=OPENLDI)");
2152
2153 module_param(viafb_lcd_port, charp, S_IRUSR);
2154 MODULE_PARM_DESC(viafb_lcd_port, "Specify LCD output port.");
2155
2156 module_param(viafb_dvi_port, charp, S_IRUSR);
2157 MODULE_PARM_DESC(viafb_dvi_port, "Specify DVI output port.");
2158
2159 MODULE_LICENSE("GPL");
2160 #endif