drivers/video/fbdev/via/viafbdev.c

   1 // SPDX-License-Identifier: GPL-2.0-or-later
   2 /*
   3  * Copyright 1998-2009 VIA Technologies, Inc. All Rights Reserved.
   4  * Copyright 2001-2008 S3 Graphics, Inc. All Rights Reserved.
   5
   6  */
   7
   8 #include <linux/compiler.h>
   9 #include <linux/module.h>
  10 #include <linux/seq_file.h>
  11 #include <linux/slab.h>
  12 #include <linux/stat.h>
  13 #include <linux/via-core.h>
  14 #include <linux/via_i2c.h>
  15
  16 #define _MASTER_FILE
  17 #include "global.h"
  18
  19 static char *viafb_name = "Via";
  20 static u32 pseudo_pal[17];
  21
  22 /* video mode */
  23 static char *viafb_mode;
  24 static char *viafb_mode1;
  25 static int viafb_bpp = 32;
  26 static int viafb_bpp1 = 32;
  27
  28 static unsigned int viafb_second_offset;
  29 static int viafb_second_size;
  30
  31 static int viafb_accel = 1;
  32
  33 /* Added for specifying active devices.*/
  34 static char *viafb_active_dev;
  35
  36 /*Added for specify lcd output port*/
  37 static char *viafb_lcd_port = "";
  38 static char *viafb_dvi_port = "";
  39
  40 static void retrieve_device_setting(struct viafb_ioctl_setting
  41         *setting_info);
  42 static int viafb_pan_display(struct fb_var_screeninfo *var,
  43         struct fb_info *info);
  44
  45 static struct fb_ops viafb_ops;
  46
  47 /* supported output devices on each IGP
  48  * only CX700, VX800, VX855, VX900 were documented
  49  * VIA_CRT should be everywhere
  50  * VIA_6C can be onle pre-CX700 (probably only on CLE266) as 6C is used for PLL
  51  * source selection on CX700 and later
  52  * K400 seems to support VIA_96, VIA_DVP1, VIA_LVDS{1,2} as in viamode.c
  53  */
  54 static const u32 supported_odev_map[] = {
  55         [UNICHROME_CLE266]      = VIA_CRT | VIA_LDVP0 | VIA_LDVP1,
  56         [UNICHROME_K400]        = VIA_CRT | VIA_DVP0 | VIA_DVP1 | VIA_LVDS1
  57                                 | VIA_LVDS2,
  58         [UNICHROME_K800]        = VIA_CRT | VIA_DVP0 | VIA_DVP1 | VIA_LVDS1
  59                                 | VIA_LVDS2,
  60         [UNICHROME_PM800]       = VIA_CRT | VIA_DVP0 | VIA_DVP1 | VIA_LVDS1
  61                                 | VIA_LVDS2,
  62         [UNICHROME_CN700]       = VIA_CRT | VIA_DVP0 | VIA_DVP1 | VIA_LVDS1
  63                                 | VIA_LVDS2,
  64         [UNICHROME_CX700]       = VIA_CRT | VIA_DVP1 | VIA_LVDS1 | VIA_LVDS2,
  65         [UNICHROME_CN750]       = VIA_CRT | VIA_DVP1 | VIA_LVDS1 | VIA_LVDS2,
  66         [UNICHROME_K8M890]      = VIA_CRT | VIA_DVP1 | VIA_LVDS1 | VIA_LVDS2,
  67         [UNICHROME_P4M890]      = VIA_CRT | VIA_DVP1 | VIA_LVDS1 | VIA_LVDS2,
  68         [UNICHROME_P4M900]      = VIA_CRT | VIA_DVP1 | VIA_LVDS1 | VIA_LVDS2,
  69         [UNICHROME_VX800]       = VIA_CRT | VIA_DVP1 | VIA_LVDS1 | VIA_LVDS2,
  70         [UNICHROME_VX855]       = VIA_CRT | VIA_DVP1 | VIA_LVDS1 | VIA_LVDS2,
  71         [UNICHROME_VX900]       = VIA_CRT | VIA_DVP1 | VIA_LVDS1 | VIA_LVDS2,
  72 };
  73
  74 static void viafb_fill_var_color_info(struct fb_var_screeninfo *var, u8 depth)
  75 {
  76         var->grayscale = 0;
  77         var->red.msb_right = 0;
  78         var->green.msb_right = 0;
  79         var->blue.msb_right = 0;
  80         var->transp.offset = 0;
  81         var->transp.length = 0;
  82         var->transp.msb_right = 0;
  83         var->nonstd = 0;
  84         switch (depth) {
  85         case 8:
  86                 var->bits_per_pixel = 8;
  87                 var->red.offset = 0;
  88                 var->green.offset = 0;
  89                 var->blue.offset = 0;
  90                 var->red.length = 8;
  91                 var->green.length = 8;
  92                 var->blue.length = 8;
  93                 break;
  94         case 15:
  95                 var->bits_per_pixel = 16;
  96                 var->red.offset = 10;
  97                 var->green.offset = 5;
  98                 var->blue.offset = 0;
  99                 var->red.length = 5;
 100                 var->green.length = 5;
 101                 var->blue.length = 5;
 102                 break;
 103         case 16:
 104                 var->bits_per_pixel = 16;
 105                 var->red.offset = 11;
 106                 var->green.offset = 5;
 107                 var->blue.offset = 0;
 108                 var->red.length = 5;
 109                 var->green.length = 6;
 110                 var->blue.length = 5;
 111                 break;
 112         case 24:
 113                 var->bits_per_pixel = 32;
 114                 var->red.offset = 16;
 115                 var->green.offset = 8;
 116                 var->blue.offset = 0;
 117                 var->red.length = 8;
 118                 var->green.length = 8;
 119                 var->blue.length = 8;
 120                 break;
 121         case 30:
 122                 var->bits_per_pixel = 32;
 123                 var->red.offset = 20;
 124                 var->green.offset = 10;
 125                 var->blue.offset = 0;
 126                 var->red.length = 10;
 127                 var->green.length = 10;
 128                 var->blue.length = 10;
 129                 break;
 130         }
 131 }
 132
 133 static void viafb_update_fix(struct fb_info *info)
 134 {
 135         u32 bpp = info->var.bits_per_pixel;
 136
 137         info->fix.visual =
 138                 bpp == 8 ? FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_TRUECOLOR;
 139         info->fix.line_length = ALIGN(info->var.xres_virtual * bpp / 8,
 140                 VIA_PITCH_SIZE);
 141 }
 142
 143 static void viafb_setup_fixinfo(struct fb_fix_screeninfo *fix,
 144         struct viafb_par *viaparinfo)
 145 {
 146         memset(fix, 0, sizeof(struct fb_fix_screeninfo));
 147         strcpy(fix->id, viafb_name);
 148
 149         fix->smem_start = viaparinfo->fbmem;
 150         fix->smem_len = viaparinfo->fbmem_free;
 151
 152         fix->type = FB_TYPE_PACKED_PIXELS;
 153         fix->type_aux = 0;
 154         fix->visual = FB_VISUAL_TRUECOLOR;
 155
 156         fix->xpanstep = fix->ywrapstep = 0;
 157         fix->ypanstep = 1;
 158
 159         /* Just tell the accel name */
 160         viafbinfo->fix.accel = FB_ACCEL_VIA_UNICHROME;
 161 }
 162 static int viafb_open(struct fb_info *info, int user)
 163 {
 164         DEBUG_MSG(KERN_INFO "viafb_open!\n");
 165         return 0;
 166 }
 167
 168 static int viafb_release(struct fb_info *info, int user)
 169 {
 170         DEBUG_MSG(KERN_INFO "viafb_release!\n");
 171         return 0;
 172 }
 173
 174 static inline int get_var_refresh(struct fb_var_screeninfo *var)
 175 {
 176         u32 htotal, vtotal;
 177
 178         htotal = var->left_margin + var->xres + var->right_margin
 179                 + var->hsync_len;
 180         vtotal = var->upper_margin + var->yres + var->lower_margin
 181                 + var->vsync_len;
 182         return PICOS2KHZ(var->pixclock) * 1000 / (htotal * vtotal);
 183 }
 184
 185 static int viafb_check_var(struct fb_var_screeninfo *var,
 186         struct fb_info *info)
 187 {
 188         int depth, refresh;
 189         struct viafb_par *ppar = info->par;
 190         u32 line;
 191
 192         DEBUG_MSG(KERN_INFO "viafb_check_var!\n");
 193         /* Sanity check */
 194         /* HW neither support interlacte nor double-scaned mode */
 195         if (var->vmode & FB_VMODE_INTERLACED || var->vmode & FB_VMODE_DOUBLE)
 196                 return -EINVAL;
 197
 198         /* the refresh rate is not important here, as we only want to know
 199          * whether the resolution exists
 200          */
 201         if (!viafb_get_best_mode(var->xres, var->yres, 60)) {
 202                 DEBUG_MSG(KERN_INFO
 203                           "viafb: Mode %dx%dx%d not supported!!\n",
 204                           var->xres, var->yres, var->bits_per_pixel);
 205                 return -EINVAL;
 206         }
 207
 208         depth = fb_get_color_depth(var, &info->fix);
 209         if (!depth)
 210                 depth = var->bits_per_pixel;
 211
 212         if (depth < 0 || depth > 32)
 213                 return -EINVAL;
 214         else if (!depth)
 215                 depth = 24;
 216         else if (depth == 15 && viafb_dual_fb && ppar->iga_path == IGA1)
 217                 depth = 15;
 218         else if (depth == 30)
 219                 depth = 30;
 220         else if (depth <= 8)
 221                 depth = 8;
 222         else if (depth <= 16)
 223                 depth = 16;
 224         else
 225                 depth = 24;
 226
 227         viafb_fill_var_color_info(var, depth);
 228         if (var->xres_virtual < var->xres)
 229                 var->xres_virtual = var->xres;
 230
 231         line = ALIGN(var->xres_virtual * var->bits_per_pixel / 8,
 232                 VIA_PITCH_SIZE);
 233         if (line > VIA_PITCH_MAX || line * var->yres_virtual > ppar->memsize)
 234                 return -EINVAL;
 235
 236         /* Based on var passed in to calculate the refresh,
 237          * because our driver use some modes special.
 238          */
 239         refresh = viafb_get_refresh(var->xres, var->yres,
 240                 get_var_refresh(var));
 241
 242         /* Adjust var according to our driver's own table */
 243         viafb_fill_var_timing_info(var,
 244                 viafb_get_best_mode(var->xres, var->yres, refresh));
 245         if (var->accel_flags & FB_ACCELF_TEXT &&
 246                 !ppar->shared->vdev->engine_mmio)
 247                 var->accel_flags = 0;
 248
 249         return 0;
 250 }
 251
 252 static int viafb_set_par(struct fb_info *info)
 253 {
 254         struct viafb_par *viapar = info->par;
 255         int refresh;
 256         DEBUG_MSG(KERN_INFO "viafb_set_par!\n");
 257
 258         viafb_update_fix(info);
 259         viapar->depth = fb_get_color_depth(&info->var, &info->fix);
 260         viafb_update_device_setting(viafbinfo->var.xres, viafbinfo->var.yres,
 261                 viafbinfo->var.bits_per_pixel, 0);
 262
 263         if (viafb_dual_fb) {
 264                 viafb_update_device_setting(viafbinfo1->var.xres,
 265                         viafbinfo1->var.yres, viafbinfo1->var.bits_per_pixel,
 266                         1);
 267         } else if (viafb_SAMM_ON == 1) {
 268                 DEBUG_MSG(KERN_INFO
 269                 "viafb_second_xres = %d, viafb_second_yres = %d, bpp = %d\n",
 270                           viafb_second_xres, viafb_second_yres, viafb_bpp1);
 271
 272                 viafb_update_device_setting(viafb_second_xres,
 273                         viafb_second_yres, viafb_bpp1, 1);
 274         }
 275
 276         refresh = get_var_refresh(&info->var);
 277         if (viafb_dual_fb && viapar->iga_path == IGA2) {
 278                 viafb_bpp1 = info->var.bits_per_pixel;
 279                 viafb_refresh1 = refresh;
 280         } else {
 281                 viafb_bpp = info->var.bits_per_pixel;
 282                 viafb_refresh = refresh;
 283         }
 284
 285         if (info->var.accel_flags & FB_ACCELF_TEXT)
 286                 info->flags &= ~FBINFO_HWACCEL_DISABLED;
 287         else
 288                 info->flags |= FBINFO_HWACCEL_DISABLED;
 289         viafb_setmode();
 290         viafb_pan_display(&info->var, info);
 291
 292         return 0;
 293 }
 294
 295 /* Set one color register */
 296 static int viafb_setcolreg(unsigned regno, unsigned red, unsigned green,
 297 unsigned blue, unsigned transp, struct fb_info *info)
 298 {
 299         struct viafb_par *viapar = info->par;
 300         u32 r, g, b;
 301
 302         if (info->fix.visual == FB_VISUAL_PSEUDOCOLOR) {
 303                 if (regno > 255)
 304                         return -EINVAL;
 305
 306                 if (!viafb_dual_fb || viapar->iga_path == IGA1)
 307                         viafb_set_primary_color_register(regno, red >> 8,
 308                                 green >> 8, blue >> 8);
 309
 310                 if (!viafb_dual_fb || viapar->iga_path == IGA2)
 311                         viafb_set_secondary_color_register(regno, red >> 8,
 312                                 green >> 8, blue >> 8);
 313         } else {
 314                 if (regno > 15)
 315                         return -EINVAL;
 316
 317                 r = (red >> (16 - info->var.red.length))
 318                         << info->var.red.offset;
 319                 b = (blue >> (16 - info->var.blue.length))
 320                         << info->var.blue.offset;
 321                 g = (green >> (16 - info->var.green.length))
 322                         << info->var.green.offset;
 323                 ((u32 *) info->pseudo_palette)[regno] = r | g | b;
 324         }
 325
 326         return 0;
 327 }
 328
 329 static int viafb_pan_display(struct fb_var_screeninfo *var,
 330         struct fb_info *info)
 331 {
 332         struct viafb_par *viapar = info->par;
 333         u32 vram_addr = viapar->vram_addr
 334                 + var->yoffset * info->fix.line_length
 335                 + var->xoffset * info->var.bits_per_pixel / 8;
 336
 337         DEBUG_MSG(KERN_DEBUG "viafb_pan_display, address = %d\n", vram_addr);
 338         if (!viafb_dual_fb) {
 339                 via_set_primary_address(vram_addr);
 340                 via_set_secondary_address(vram_addr);
 341         } else if (viapar->iga_path == IGA1)
 342                 via_set_primary_address(vram_addr);
 343         else
 344                 via_set_secondary_address(vram_addr);
 345
 346         return 0;
 347 }
 348
 349 static int viafb_blank(int blank_mode, struct fb_info *info)
 350 {
 351         DEBUG_MSG(KERN_INFO "viafb_blank!\n");
 352         /* clear DPMS setting */
 353
 354         switch (blank_mode) {
 355         case FB_BLANK_UNBLANK:
 356                 /* Screen: On, HSync: On, VSync: On */
 357                 /* control CRT monitor power management */
 358                 via_set_state(VIA_CRT, VIA_STATE_ON);
 359                 break;
 360         case FB_BLANK_HSYNC_SUSPEND:
 361                 /* Screen: Off, HSync: Off, VSync: On */
 362                 /* control CRT monitor power management */
 363                 via_set_state(VIA_CRT, VIA_STATE_STANDBY);
 364                 break;
 365         case FB_BLANK_VSYNC_SUSPEND:
 366                 /* Screen: Off, HSync: On, VSync: Off */
 367                 /* control CRT monitor power management */
 368                 via_set_state(VIA_CRT, VIA_STATE_SUSPEND);
 369                 break;
 370         case FB_BLANK_POWERDOWN:
 371                 /* Screen: Off, HSync: Off, VSync: Off */
 372                 /* control CRT monitor power management */
 373                 via_set_state(VIA_CRT, VIA_STATE_OFF);
 374                 break;
 375         }
 376
 377         return 0;
 378 }
 379
 380 static int viafb_ioctl(struct fb_info *info, u_int cmd, u_long arg)
 381 {
 382         union {
 383                 struct viafb_ioctl_mode viamode;
 384                 struct viafb_ioctl_samm viasamm;
 385                 struct viafb_driver_version driver_version;
 386                 struct fb_var_screeninfo sec_var;
 387                 struct _panel_size_pos_info panel_pos_size_para;
 388                 struct viafb_ioctl_setting viafb_setting;
 389                 struct device_t active_dev;
 390         } u;
 391         u32 state_info = 0;
 392         u32 *viafb_gamma_table;
 393         char driver_name[] = "viafb";
 394
 395         u32 __user *argp = (u32 __user *) arg;
 396         u32 gpu32;
 397
 398         DEBUG_MSG(KERN_INFO "viafb_ioctl: 0x%X !!\n", cmd);
 399         printk(KERN_WARNING "viafb_ioctl: Please avoid this interface as it is unstable and might change or vanish at any time!\n");
 400         memset(&u, 0, sizeof(u));
 401
 402         switch (cmd) {
 403         case VIAFB_GET_CHIP_INFO:
 404                 if (copy_to_user(argp, viaparinfo->chip_info,
 405                                 sizeof(struct chip_information)))
 406                         return -EFAULT;
 407                 break;
 408         case VIAFB_GET_INFO_SIZE:
 409                 return put_user((u32)sizeof(struct viafb_ioctl_info), argp);
 410         case VIAFB_GET_INFO:
 411                 return viafb_ioctl_get_viafb_info(arg);
 412         case VIAFB_HOTPLUG:
 413                 return put_user(viafb_ioctl_hotplug(info->var.xres,
 414                                               info->var.yres,
 415                                               info->var.bits_per_pixel), argp);
 416         case VIAFB_SET_HOTPLUG_FLAG:
 417                 if (copy_from_user(&gpu32, argp, sizeof(gpu32)))
 418                         return -EFAULT;
 419                 viafb_hotplug = (gpu32) ? 1 : 0;
 420                 break;
 421         case VIAFB_GET_RESOLUTION:
 422                 u.viamode.xres = (u32) viafb_hotplug_Xres;
 423                 u.viamode.yres = (u32) viafb_hotplug_Yres;
 424                 u.viamode.refresh = (u32) viafb_hotplug_refresh;
 425                 u.viamode.bpp = (u32) viafb_hotplug_bpp;
 426                 if (viafb_SAMM_ON == 1) {
 427                         u.viamode.xres_sec = viafb_second_xres;
 428                         u.viamode.yres_sec = viafb_second_yres;
 429                         u.viamode.virtual_xres_sec = viafb_dual_fb ? viafbinfo1->var.xres_virtual : viafbinfo->var.xres_virtual;
 430                         u.viamode.virtual_yres_sec = viafb_dual_fb ? viafbinfo1->var.yres_virtual : viafbinfo->var.yres_virtual;
 431                         u.viamode.refresh_sec = viafb_refresh1;
 432                         u.viamode.bpp_sec = viafb_bpp1;
 433                 } else {
 434                         u.viamode.xres_sec = 0;
 435                         u.viamode.yres_sec = 0;
 436                         u.viamode.virtual_xres_sec = 0;
 437                         u.viamode.virtual_yres_sec = 0;
 438                         u.viamode.refresh_sec = 0;
 439                         u.viamode.bpp_sec = 0;
 440                 }
 441                 if (copy_to_user(argp, &u.viamode, sizeof(u.viamode)))
 442                         return -EFAULT;
 443                 break;
 444         case VIAFB_GET_SAMM_INFO:
 445                 u.viasamm.samm_status = viafb_SAMM_ON;
 446
 447                 if (viafb_SAMM_ON == 1) {
 448                         if (viafb_dual_fb) {
 449                                 u.viasamm.size_prim = viaparinfo->fbmem_free;
 450                                 u.viasamm.size_sec = viaparinfo1->fbmem_free;
 451                         } else {
 452                                 if (viafb_second_size) {
 453                                         u.viasamm.size_prim =
 454                                             viaparinfo->fbmem_free -
 455                                             viafb_second_size * 1024 * 1024;
 456                                         u.viasamm.size_sec =
 457                                             viafb_second_size * 1024 * 1024;
 458                                 } else {
 459                                         u.viasamm.size_prim =
 460                                             viaparinfo->fbmem_free >> 1;
 461                                         u.viasamm.size_sec =
 462                                             (viaparinfo->fbmem_free >> 1);
 463                                 }
 464                         }
 465                         u.viasamm.mem_base = viaparinfo->fbmem;
 466                         u.viasamm.offset_sec = viafb_second_offset;
 467                 } else {
 468                         u.viasamm.size_prim =
 469                             viaparinfo->memsize - viaparinfo->fbmem_used;
 470                         u.viasamm.size_sec = 0;
 471                         u.viasamm.mem_base = viaparinfo->fbmem;
 472                         u.viasamm.offset_sec = 0;
 473                 }
 474
 475                 if (copy_to_user(argp, &u.viasamm, sizeof(u.viasamm)))
 476                         return -EFAULT;
 477
 478                 break;
 479         case VIAFB_TURN_ON_OUTPUT_DEVICE:
 480                 if (copy_from_user(&gpu32, argp, sizeof(gpu32)))
 481                         return -EFAULT;
 482                 if (gpu32 & CRT_Device)
 483                         via_set_state(VIA_CRT, VIA_STATE_ON);
 484                 if (gpu32 & DVI_Device)
 485                         viafb_dvi_enable();
 486                 if (gpu32 & LCD_Device)
 487                         viafb_lcd_enable();
 488                 break;
 489         case VIAFB_TURN_OFF_OUTPUT_DEVICE:
 490                 if (copy_from_user(&gpu32, argp, sizeof(gpu32)))
 491                         return -EFAULT;
 492                 if (gpu32 & CRT_Device)
 493                         via_set_state(VIA_CRT, VIA_STATE_OFF);
 494                 if (gpu32 & DVI_Device)
 495                         viafb_dvi_disable();
 496                 if (gpu32 & LCD_Device)
 497                         viafb_lcd_disable();
 498                 break;
 499         case VIAFB_GET_DEVICE:
 500                 u.active_dev.crt = viafb_CRT_ON;
 501                 u.active_dev.dvi = viafb_DVI_ON;
 502                 u.active_dev.lcd = viafb_LCD_ON;
 503                 u.active_dev.samm = viafb_SAMM_ON;
 504                 u.active_dev.primary_dev = viafb_primary_dev;
 505
 506                 u.active_dev.lcd_dsp_cent = viafb_lcd_dsp_method;
 507                 u.active_dev.lcd_panel_id = viafb_lcd_panel_id;
 508                 u.active_dev.lcd_mode = viafb_lcd_mode;
 509
 510                 u.active_dev.xres = viafb_hotplug_Xres;
 511                 u.active_dev.yres = viafb_hotplug_Yres;
 512
 513                 u.active_dev.xres1 = viafb_second_xres;
 514                 u.active_dev.yres1 = viafb_second_yres;
 515
 516                 u.active_dev.bpp = viafb_bpp;
 517                 u.active_dev.bpp1 = viafb_bpp1;
 518                 u.active_dev.refresh = viafb_refresh;
 519                 u.active_dev.refresh1 = viafb_refresh1;
 520
 521                 u.active_dev.epia_dvi = viafb_platform_epia_dvi;
 522                 u.active_dev.lcd_dual_edge = viafb_device_lcd_dualedge;
 523                 u.active_dev.bus_width = viafb_bus_width;
 524
 525                 if (copy_to_user(argp, &u.active_dev, sizeof(u.active_dev)))
 526                         return -EFAULT;
 527                 break;
 528
 529         case VIAFB_GET_DRIVER_VERSION:
 530                 u.driver_version.iMajorNum = VERSION_MAJOR;
 531                 u.driver_version.iKernelNum = VERSION_KERNEL;
 532                 u.driver_version.iOSNum = VERSION_OS;
 533                 u.driver_version.iMinorNum = VERSION_MINOR;
 534
 535                 if (copy_to_user(argp, &u.driver_version,
 536                         sizeof(u.driver_version)))
 537                         return -EFAULT;
 538
 539                 break;
 540
 541         case VIAFB_GET_DEVICE_INFO:
 542
 543                 retrieve_device_setting(&u.viafb_setting);
 544
 545                 if (copy_to_user(argp, &u.viafb_setting,
 546                                  sizeof(u.viafb_setting)))
 547                         return -EFAULT;
 548
 549                 break;
 550
 551         case VIAFB_GET_DEVICE_SUPPORT:
 552                 viafb_get_device_support_state(&state_info);
 553                 if (put_user(state_info, argp))
 554                         return -EFAULT;
 555                 break;
 556
 557         case VIAFB_GET_DEVICE_CONNECT:
 558                 viafb_get_device_connect_state(&state_info);
 559                 if (put_user(state_info, argp))
 560                         return -EFAULT;
 561                 break;
 562
 563         case VIAFB_GET_PANEL_SUPPORT_EXPAND:
 564                 state_info =
 565                     viafb_lcd_get_support_expand_state(info->var.xres,
 566                                                  info->var.yres);
 567                 if (put_user(state_info, argp))
 568                         return -EFAULT;
 569                 break;
 570
 571         case VIAFB_GET_DRIVER_NAME:
 572                 if (copy_to_user(argp, driver_name, sizeof(driver_name)))
 573                         return -EFAULT;
 574                 break;
 575
 576         case VIAFB_SET_GAMMA_LUT:
 577                 viafb_gamma_table = memdup_user(argp, 256 * sizeof(u32));
 578                 if (IS_ERR(viafb_gamma_table))
 579                         return PTR_ERR(viafb_gamma_table);
 580                 viafb_set_gamma_table(viafb_bpp, viafb_gamma_table);
 581                 kfree(viafb_gamma_table);
 582                 break;
 583
 584         case VIAFB_GET_GAMMA_LUT:
 585                 viafb_gamma_table = kmalloc_array(256, sizeof(u32),
 586                                                   GFP_KERNEL);
 587                 if (!viafb_gamma_table)
 588                         return -ENOMEM;
 589                 viafb_get_gamma_table(viafb_gamma_table);
 590                 if (copy_to_user(argp, viafb_gamma_table,
 591                         256 * sizeof(u32))) {
 592                         kfree(viafb_gamma_table);
 593                         return -EFAULT;
 594                 }
 595                 kfree(viafb_gamma_table);
 596                 break;
 597
 598         case VIAFB_GET_GAMMA_SUPPORT_STATE:
 599                 viafb_get_gamma_support_state(viafb_bpp, &state_info);
 600                 if (put_user(state_info, argp))
 601                         return -EFAULT;
 602                 break;
 603         case VIAFB_SYNC_SURFACE:
 604                 DEBUG_MSG(KERN_INFO "lobo VIAFB_SYNC_SURFACE\n");
 605                 break;
 606         case VIAFB_GET_DRIVER_CAPS:
 607                 break;
 608
 609         case VIAFB_GET_PANEL_MAX_SIZE:
 610                 if (copy_from_user(&u.panel_pos_size_para, argp,
 611                                    sizeof(u.panel_pos_size_para)))
 612                         return -EFAULT;
 613                 u.panel_pos_size_para.x = u.panel_pos_size_para.y = 0;
 614                 if (copy_to_user(argp, &u.panel_pos_size_para,
 615                      sizeof(u.panel_pos_size_para)))
 616                         return -EFAULT;
 617                 break;
 618         case VIAFB_GET_PANEL_MAX_POSITION:
 619                 if (copy_from_user(&u.panel_pos_size_para, argp,
 620                                    sizeof(u.panel_pos_size_para)))
 621                         return -EFAULT;
 622                 u.panel_pos_size_para.x = u.panel_pos_size_para.y = 0;
 623                 if (copy_to_user(argp, &u.panel_pos_size_para,
 624                                  sizeof(u.panel_pos_size_para)))
 625                         return -EFAULT;
 626                 break;
 627
 628         case VIAFB_GET_PANEL_POSITION:
 629                 if (copy_from_user(&u.panel_pos_size_para, argp,
 630                                    sizeof(u.panel_pos_size_para)))
 631                         return -EFAULT;
 632                 u.panel_pos_size_para.x = u.panel_pos_size_para.y = 0;
 633                 if (copy_to_user(argp, &u.panel_pos_size_para,
 634                                  sizeof(u.panel_pos_size_para)))
 635                         return -EFAULT;
 636                 break;
 637         case VIAFB_GET_PANEL_SIZE:
 638                 if (copy_from_user(&u.panel_pos_size_para, argp,
 639                                    sizeof(u.panel_pos_size_para)))
 640                         return -EFAULT;
 641                 u.panel_pos_size_para.x = u.panel_pos_size_para.y = 0;
 642                 if (copy_to_user(argp, &u.panel_pos_size_para,
 643                                  sizeof(u.panel_pos_size_para)))
 644                         return -EFAULT;
 645                 break;
 646
 647         case VIAFB_SET_PANEL_POSITION:
 648                 if (copy_from_user(&u.panel_pos_size_para, argp,
 649                                    sizeof(u.panel_pos_size_para)))
 650                         return -EFAULT;
 651                 break;
 652         case VIAFB_SET_PANEL_SIZE:
 653                 if (copy_from_user(&u.panel_pos_size_para, argp,
 654                                    sizeof(u.panel_pos_size_para)))
 655                         return -EFAULT;
 656                 break;
 657
 658         default:
 659                 return -EINVAL;
 660         }
 661
 662         return 0;
 663 }
 664
 665 static void viafb_fillrect(struct fb_info *info,
 666         const struct fb_fillrect *rect)
 667 {
 668         struct viafb_par *viapar = info->par;
 669         struct viafb_shared *shared = viapar->shared;
 670         u32 fg_color;
 671         u8 rop;
 672
 673         if (info->flags & FBINFO_HWACCEL_DISABLED || !shared->hw_bitblt) {
 674                 cfb_fillrect(info, rect);
 675                 return;
 676         }
 677
 678         if (!rect->width || !rect->height)
 679                 return;
 680
 681         if (info->fix.visual == FB_VISUAL_TRUECOLOR)
 682                 fg_color = ((u32 *)info->pseudo_palette)[rect->color];
 683         else
 684                 fg_color = rect->color;
 685
 686         if (rect->rop == ROP_XOR)
 687                 rop = 0x5A;
 688         else
 689                 rop = 0xF0;
 690
 691         DEBUG_MSG(KERN_DEBUG "viafb 2D engine: fillrect\n");
 692         if (shared->hw_bitblt(shared->vdev->engine_mmio, VIA_BITBLT_FILL,
 693                 rect->width, rect->height, info->var.bits_per_pixel,
 694                 viapar->vram_addr, info->fix.line_length, rect->dx, rect->dy,
 695                 NULL, 0, 0, 0, 0, fg_color, 0, rop))
 696                 cfb_fillrect(info, rect);
 697 }
 698
 699 static void viafb_copyarea(struct fb_info *info,
 700         const struct fb_copyarea *area)
 701 {
 702         struct viafb_par *viapar = info->par;
 703         struct viafb_shared *shared = viapar->shared;
 704
 705         if (info->flags & FBINFO_HWACCEL_DISABLED || !shared->hw_bitblt) {
 706                 cfb_copyarea(info, area);
 707                 return;
 708         }
 709
 710         if (!area->width || !area->height)
 711                 return;
 712
 713         DEBUG_MSG(KERN_DEBUG "viafb 2D engine: copyarea\n");
 714         if (shared->hw_bitblt(shared->vdev->engine_mmio, VIA_BITBLT_COLOR,
 715                 area->width, area->height, info->var.bits_per_pixel,
 716                 viapar->vram_addr, info->fix.line_length, area->dx, area->dy,
 717                 NULL, viapar->vram_addr, info->fix.line_length,
 718                 area->sx, area->sy, 0, 0, 0))
 719                 cfb_copyarea(info, area);
 720 }
 721
 722 static void viafb_imageblit(struct fb_info *info,
 723         const struct fb_image *image)
 724 {
 725         struct viafb_par *viapar = info->par;
 726         struct viafb_shared *shared = viapar->shared;
 727         u32 fg_color = 0, bg_color = 0;
 728         u8 op;
 729
 730         if (info->flags & FBINFO_HWACCEL_DISABLED || !shared->hw_bitblt ||
 731                 (image->depth != 1 && image->depth != viapar->depth)) {
 732                 cfb_imageblit(info, image);
 733                 return;
 734         }
 735
 736         if (image->depth == 1) {
 737                 op = VIA_BITBLT_MONO;
 738                 if (info->fix.visual == FB_VISUAL_TRUECOLOR) {
 739                         fg_color =
 740                                 ((u32 *)info->pseudo_palette)[image->fg_color];
 741                         bg_color =
 742                                 ((u32 *)info->pseudo_palette)[image->bg_color];
 743                 } else {
 744                         fg_color = image->fg_color;
 745                         bg_color = image->bg_color;
 746                 }
 747         } else
 748                 op = VIA_BITBLT_COLOR;
 749
 750         DEBUG_MSG(KERN_DEBUG "viafb 2D engine: imageblit\n");
 751         if (shared->hw_bitblt(shared->vdev->engine_mmio, op,
 752                 image->width, image->height, info->var.bits_per_pixel,
 753                 viapar->vram_addr, info->fix.line_length, image->dx, image->dy,
 754                 (u32 *)image->data, 0, 0, 0, 0, fg_color, bg_color, 0))
 755                 cfb_imageblit(info, image);
 756 }
 757
 758 static int viafb_cursor(struct fb_info *info, struct fb_cursor *cursor)
 759 {
 760         struct viafb_par *viapar = info->par;
 761         void __iomem *engine = viapar->shared->vdev->engine_mmio;
 762         u32 temp, xx, yy, bg_color = 0, fg_color = 0,
 763                 chip_name = viapar->shared->chip_info.gfx_chip_name;
 764         int i, j = 0, cur_size = 64;
 765
 766         if (info->flags & FBINFO_HWACCEL_DISABLED || info != viafbinfo)
 767                 return -ENODEV;
 768
 769         /* LCD ouput does not support hw cursors (at least on VN896) */
 770         if ((chip_name == UNICHROME_CLE266 && viapar->iga_path == IGA2) ||
 771                 viafb_LCD_ON)
 772                 return -ENODEV;
 773
 774         viafb_show_hw_cursor(info, HW_Cursor_OFF);
 775
 776         if (cursor->set & FB_CUR_SETHOT) {
 777                 temp = (cursor->hot.x << 16) + cursor->hot.y;
 778                 writel(temp, engine + VIA_REG_CURSOR_ORG);
 779         }
 780
 781         if (cursor->set & FB_CUR_SETPOS) {
 782                 yy = cursor->image.dy - info->var.yoffset;
 783                 xx = cursor->image.dx - info->var.xoffset;
 784                 temp = yy & 0xFFFF;
 785                 temp |= (xx << 16);
 786                 writel(temp, engine + VIA_REG_CURSOR_POS);
 787         }
 788
 789         if (cursor->image.width <= 32 && cursor->image.height <= 32)
 790                 cur_size = 32;
 791         else if (cursor->image.width <= 64 && cursor->image.height <= 64)
 792                 cur_size = 64;
 793         else {
 794                 printk(KERN_WARNING "viafb_cursor: The cursor is too large "
 795                         "%dx%d", cursor->image.width, cursor->image.height);
 796                 return -ENXIO;
 797         }
 798
 799         if (cursor->set & FB_CUR_SETSIZE) {
 800                 temp = readl(engine + VIA_REG_CURSOR_MODE);
 801                 if (cur_size == 32)
 802                         temp |= 0x2;
 803                 else
 804                         temp &= ~0x2;
 805
 806                 writel(temp, engine + VIA_REG_CURSOR_MODE);
 807         }
 808
 809         if (cursor->set & FB_CUR_SETCMAP) {
 810                 fg_color = cursor->image.fg_color;
 811                 bg_color = cursor->image.bg_color;
 812                 if (chip_name == UNICHROME_CX700 ||
 813                         chip_name == UNICHROME_VX800 ||
 814                         chip_name == UNICHROME_VX855 ||
 815                         chip_name == UNICHROME_VX900) {
 816                         fg_color =
 817                                 ((info->cmap.red[fg_color] & 0xFFC0) << 14) |
 818                                 ((info->cmap.green[fg_color] & 0xFFC0) << 4) |
 819                                 ((info->cmap.blue[fg_color] & 0xFFC0) >> 6);
 820                         bg_color =
 821                                 ((info->cmap.red[bg_color] & 0xFFC0) << 14) |
 822                                 ((info->cmap.green[bg_color] & 0xFFC0) << 4) |
 823                                 ((info->cmap.blue[bg_color] & 0xFFC0) >> 6);
 824                 } else {
 825                         fg_color =
 826                                 ((info->cmap.red[fg_color] & 0xFF00) << 8) |
 827                                 (info->cmap.green[fg_color] & 0xFF00) |
 828                                 ((info->cmap.blue[fg_color] & 0xFF00) >> 8);
 829                         bg_color =
 830                                 ((info->cmap.red[bg_color] & 0xFF00) << 8) |
 831                                 (info->cmap.green[bg_color] & 0xFF00) |
 832                                 ((info->cmap.blue[bg_color] & 0xFF00) >> 8);
 833                 }
 834
 835                 writel(bg_color, engine + VIA_REG_CURSOR_BG);
 836                 writel(fg_color, engine + VIA_REG_CURSOR_FG);
 837         }
 838
 839         if (cursor->set & FB_CUR_SETSHAPE) {
 840                 struct {
 841                         u8 data[CURSOR_SIZE];
 842                         u32 bak[CURSOR_SIZE / 4];
 843                 } *cr_data = kzalloc(sizeof(*cr_data), GFP_ATOMIC);
 844                 int size = ((cursor->image.width + 7) >> 3) *
 845                         cursor->image.height;
 846
 847                 if (!cr_data)
 848                         return -ENOMEM;
 849
 850                 if (cur_size == 32) {
 851                         for (i = 0; i < (CURSOR_SIZE / 4); i++) {
 852                                 cr_data->bak[i] = 0x0;
 853                                 cr_data->bak[i + 1] = 0xFFFFFFFF;
 854                                 i += 1;
 855                         }
 856                 } else {
 857                         for (i = 0; i < (CURSOR_SIZE / 4); i++) {
 858                                 cr_data->bak[i] = 0x0;
 859                                 cr_data->bak[i + 1] = 0x0;
 860                                 cr_data->bak[i + 2] = 0xFFFFFFFF;
 861                                 cr_data->bak[i + 3] = 0xFFFFFFFF;
 862                                 i += 3;
 863                         }
 864                 }
 865
 866                 switch (cursor->rop) {
 867                 case ROP_XOR:
 868                         for (i = 0; i < size; i++)
 869                                 cr_data->data[i] = cursor->mask[i];
 870                         break;
 871                 case ROP_COPY:
 872
 873                         for (i = 0; i < size; i++)
 874                                 cr_data->data[i] = cursor->mask[i];
 875                         break;
 876                 default:
 877                         break;
 878                 }
 879
 880                 if (cur_size == 32) {
 881                         for (i = 0; i < size; i++) {
 882                                 cr_data->bak[j] = (u32) cr_data->data[i];
 883                                 cr_data->bak[j + 1] = ~cr_data->bak[j];
 884                                 j += 2;
 885                         }
 886                 } else {
 887                         for (i = 0; i < size; i++) {
 888                                 cr_data->bak[j] = (u32) cr_data->data[i];
 889                                 cr_data->bak[j + 1] = 0x0;
 890                                 cr_data->bak[j + 2] = ~cr_data->bak[j];
 891                                 cr_data->bak[j + 3] = ~cr_data->bak[j + 1];
 892                                 j += 4;
 893                         }
 894                 }
 895
 896                 memcpy_toio(viafbinfo->screen_base + viapar->shared->
 897                         cursor_vram_addr, cr_data->bak, CURSOR_SIZE);
 898                 kfree(cr_data);
 899         }
 900
 901         if (cursor->enable)
 902                 viafb_show_hw_cursor(info, HW_Cursor_ON);
 903
 904         return 0;
 905 }
 906
 907 static int viafb_sync(struct fb_info *info)
 908 {
 909         if (!(info->flags & FBINFO_HWACCEL_DISABLED))
 910                 viafb_wait_engine_idle(info);
 911         return 0;
 912 }
 913
 914 static int get_primary_device(void)
 915 {
 916         int primary_device = 0;
 917         /* Rule: device on iga1 path are the primary device. */
 918         if (viafb_SAMM_ON) {
 919                 if (viafb_CRT_ON) {
 920                         if (viaparinfo->shared->iga1_devices & VIA_CRT) {
 921                                 DEBUG_MSG(KERN_INFO "CRT IGA Path:%d\n", IGA1);
 922                                 primary_device = CRT_Device;
 923                         }
 924                 }
 925                 if (viafb_DVI_ON) {
 926                         if (viaparinfo->tmds_setting_info->iga_path == IGA1) {
 927                                 DEBUG_MSG(KERN_INFO "DVI IGA Path:%d\n",
 928                                         viaparinfo->
 929                                         tmds_setting_info->iga_path);
 930                                 primary_device = DVI_Device;
 931                         }
 932                 }
 933                 if (viafb_LCD_ON) {
 934                         if (viaparinfo->lvds_setting_info->iga_path == IGA1) {
 935                                 DEBUG_MSG(KERN_INFO "LCD IGA Path:%d\n",
 936                                         viaparinfo->
 937                                         lvds_setting_info->iga_path);
 938                                 primary_device = LCD_Device;
 939                         }
 940                 }
 941                 if (viafb_LCD2_ON) {
 942                         if (viaparinfo->lvds_setting_info2->iga_path == IGA1) {
 943                                 DEBUG_MSG(KERN_INFO "LCD2 IGA Path:%d\n",
 944                                         viaparinfo->
 945                                         lvds_setting_info2->iga_path);
 946                                 primary_device = LCD2_Device;
 947                         }
 948                 }
 949         }
 950         return primary_device;
 951 }
 952
 953 static void retrieve_device_setting(struct viafb_ioctl_setting
 954         *setting_info)
 955 {
 956
 957         /* get device status */
 958         if (viafb_CRT_ON == 1)
 959                 setting_info->device_status = CRT_Device;
 960         if (viafb_DVI_ON == 1)
 961                 setting_info->device_status |= DVI_Device;
 962         if (viafb_LCD_ON == 1)
 963                 setting_info->device_status |= LCD_Device;
 964         if (viafb_LCD2_ON == 1)
 965                 setting_info->device_status |= LCD2_Device;
 966
 967         setting_info->samm_status = viafb_SAMM_ON;
 968         setting_info->primary_device = get_primary_device();
 969
 970         setting_info->first_dev_bpp = viafb_bpp;
 971         setting_info->second_dev_bpp = viafb_bpp1;
 972
 973         setting_info->first_dev_refresh = viafb_refresh;
 974         setting_info->second_dev_refresh = viafb_refresh1;
 975
 976         setting_info->first_dev_hor_res = viafb_hotplug_Xres;
 977         setting_info->first_dev_ver_res = viafb_hotplug_Yres;
 978         setting_info->second_dev_hor_res = viafb_second_xres;
 979         setting_info->second_dev_ver_res = viafb_second_yres;
 980
 981         /* Get lcd attributes */
 982         setting_info->lcd_attributes.display_center = viafb_lcd_dsp_method;
 983         setting_info->lcd_attributes.panel_id = viafb_lcd_panel_id;
 984         setting_info->lcd_attributes.lcd_mode = viafb_lcd_mode;
 985 }
 986
 987 static int __init parse_active_dev(void)
 988 {
 989         viafb_CRT_ON = STATE_OFF;
 990         viafb_DVI_ON = STATE_OFF;
 991         viafb_LCD_ON = STATE_OFF;
 992         viafb_LCD2_ON = STATE_OFF;
 993         /* 1. Modify the active status of devices. */
 994         /* 2. Keep the order of devices, so we can set corresponding
 995            IGA path to devices in SAMM case. */
 996         /*    Note: The previous of active_dev is primary device,
 997            and the following is secondary device. */
 998         if (!viafb_active_dev) {
 999                 if (machine_is_olpc()) { /* LCD only */
1000                         viafb_LCD_ON = STATE_ON;
1001                         viafb_SAMM_ON = STATE_OFF;
1002                 } else {
1003                         viafb_CRT_ON = STATE_ON;
1004                         viafb_SAMM_ON = STATE_OFF;
1005                 }
1006         } else if (!strcmp(viafb_active_dev, "CRT+DVI")) {
1007                 /* CRT+DVI */
1008                 viafb_CRT_ON = STATE_ON;
1009                 viafb_DVI_ON = STATE_ON;
1010                 viafb_primary_dev = CRT_Device;
1011         } else if (!strcmp(viafb_active_dev, "DVI+CRT")) {
1012                 /* DVI+CRT */
1013                 viafb_CRT_ON = STATE_ON;
1014                 viafb_DVI_ON = STATE_ON;
1015                 viafb_primary_dev = DVI_Device;
1016         } else if (!strcmp(viafb_active_dev, "CRT+LCD")) {
1017                 /* CRT+LCD */
1018                 viafb_CRT_ON = STATE_ON;
1019                 viafb_LCD_ON = STATE_ON;
1020                 viafb_primary_dev = CRT_Device;
1021         } else if (!strcmp(viafb_active_dev, "LCD+CRT")) {
1022                 /* LCD+CRT */
1023                 viafb_CRT_ON = STATE_ON;
1024                 viafb_LCD_ON = STATE_ON;
1025                 viafb_primary_dev = LCD_Device;
1026         } else if (!strcmp(viafb_active_dev, "DVI+LCD")) {
1027                 /* DVI+LCD */
1028                 viafb_DVI_ON = STATE_ON;
1029                 viafb_LCD_ON = STATE_ON;
1030                 viafb_primary_dev = DVI_Device;
1031         } else if (!strcmp(viafb_active_dev, "LCD+DVI")) {
1032                 /* LCD+DVI */
1033                 viafb_DVI_ON = STATE_ON;
1034                 viafb_LCD_ON = STATE_ON;
1035                 viafb_primary_dev = LCD_Device;
1036         } else if (!strcmp(viafb_active_dev, "LCD+LCD2")) {
1037                 viafb_LCD_ON = STATE_ON;
1038                 viafb_LCD2_ON = STATE_ON;
1039                 viafb_primary_dev = LCD_Device;
1040         } else if (!strcmp(viafb_active_dev, "LCD2+LCD")) {
1041                 viafb_LCD_ON = STATE_ON;
1042                 viafb_LCD2_ON = STATE_ON;
1043                 viafb_primary_dev = LCD2_Device;
1044         } else if (!strcmp(viafb_active_dev, "CRT")) {
1045                 /* CRT only */
1046                 viafb_CRT_ON = STATE_ON;
1047                 viafb_SAMM_ON = STATE_OFF;
1048         } else if (!strcmp(viafb_active_dev, "DVI")) {
1049                 /* DVI only */
1050                 viafb_DVI_ON = STATE_ON;
1051                 viafb_SAMM_ON = STATE_OFF;
1052         } else if (!strcmp(viafb_active_dev, "LCD")) {
1053                 /* LCD only */
1054                 viafb_LCD_ON = STATE_ON;
1055                 viafb_SAMM_ON = STATE_OFF;
1056         } else
1057                 return -EINVAL;
1058
1059         return 0;
1060 }
1061
1062 static int parse_port(char *opt_str, int *output_interface)
1063 {
1064         if (!strncmp(opt_str, "DVP0", 4))
1065                 *output_interface = INTERFACE_DVP0;
1066         else if (!strncmp(opt_str, "DVP1", 4))
1067                 *output_interface = INTERFACE_DVP1;
1068         else if (!strncmp(opt_str, "DFP_HIGHLOW", 11))
1069                 *output_interface = INTERFACE_DFP;
1070         else if (!strncmp(opt_str, "DFP_HIGH", 8))
1071                 *output_interface = INTERFACE_DFP_HIGH;
1072         else if (!strncmp(opt_str, "DFP_LOW", 7))
1073                 *output_interface = INTERFACE_DFP_LOW;
1074         else
1075                 *output_interface = INTERFACE_NONE;
1076         return 0;
1077 }
1078
1079 static void parse_lcd_port(void)
1080 {
1081         parse_port(viafb_lcd_port, &viaparinfo->chip_info->lvds_chip_info.
1082                 output_interface);
1083         /*Initialize to avoid unexpected behavior */
1084         viaparinfo->chip_info->lvds_chip_info2.output_interface =
1085         INTERFACE_NONE;
1086
1087         DEBUG_MSG(KERN_INFO "parse_lcd_port: viafb_lcd_port:%s,interface:%d\n",
1088                   viafb_lcd_port, viaparinfo->chip_info->lvds_chip_info.
1089                   output_interface);
1090 }
1091
1092 static void parse_dvi_port(void)
1093 {
1094         parse_port(viafb_dvi_port, &viaparinfo->chip_info->tmds_chip_info.
1095                 output_interface);
1096
1097         DEBUG_MSG(KERN_INFO "parse_dvi_port: viafb_dvi_port:%s,interface:%d\n",
1098                   viafb_dvi_port, viaparinfo->chip_info->tmds_chip_info.
1099                   output_interface);
1100 }
1101
1102 #ifdef CONFIG_FB_VIA_DIRECT_PROCFS
1103
1104 /*
1105  * The proc filesystem read/write function, a simple proc implement to
1106  * get/set the value of DPA  DVP0,   DVP0DataDriving,  DVP0ClockDriving, DVP1,
1107  * DVP1Driving, DFPHigh, DFPLow CR96,   SR2A[5], SR1B[1], SR2A[4], SR1E[2],
1108  * CR9B,    SR65,    CR97,    CR99
1109  */
1110 static int viafb_dvp0_proc_show(struct seq_file *m, void *v)
1111 {
1112         u8 dvp0_data_dri = 0, dvp0_clk_dri = 0, dvp0 = 0;
1113         dvp0_data_dri =
1114             (viafb_read_reg(VIASR, SR2A) & BIT5) >> 4 |
1115             (viafb_read_reg(VIASR, SR1B) & BIT1) >> 1;
1116         dvp0_clk_dri =
1117             (viafb_read_reg(VIASR, SR2A) & BIT4) >> 3 |
1118             (viafb_read_reg(VIASR, SR1E) & BIT2) >> 2;
1119         dvp0 = viafb_read_reg(VIACR, CR96) & 0x0f;
1120         seq_printf(m, "%x %x %x\n", dvp0, dvp0_data_dri, dvp0_clk_dri);
1121         return 0;
1122 }
1123
1124 static int viafb_dvp0_proc_open(struct inode *inode, struct file *file)
1125 {
1126         return single_open(file, viafb_dvp0_proc_show, NULL);
1127 }
1128
1129 static ssize_t viafb_dvp0_proc_write(struct file *file,
1130         const char __user *buffer, size_t count, loff_t *pos)
1131 {
1132         char buf[20], *value, *pbuf;
1133         u8 reg_val = 0;
1134         unsigned long length, i;
1135         if (count < 1)
1136                 return -EINVAL;
1137         length = count > 20 ? 20 : count;
1138         if (copy_from_user(&buf[0], buffer, length))
1139                 return -EFAULT;
1140         buf[length - 1] = '\0'; /*Ensure end string */
1141         pbuf = &buf[0];
1142         for (i = 0; i < 3; i++) {
1143                 value = strsep(&pbuf, " ");
1144                 if (value != NULL) {
1145                         if (kstrtou8(value, 0, &reg_val) < 0)
1146                                 return -EINVAL;
1147                         DEBUG_MSG(KERN_INFO "DVP0:reg_val[%l]=:%x\n", i,
1148                                   reg_val);
1149                         switch (i) {
1150                         case 0:
1151                                 viafb_write_reg_mask(CR96, VIACR,
1152                                         reg_val, 0x0f);
1153                                 break;
1154                         case 1:
1155                                 viafb_write_reg_mask(SR2A, VIASR,
1156                                         reg_val << 4, BIT5);
1157                                 viafb_write_reg_mask(SR1B, VIASR,
1158                                         reg_val << 1, BIT1);
1159                                 break;
1160                         case 2:
1161                                 viafb_write_reg_mask(SR2A, VIASR,
1162                                         reg_val << 3, BIT4);
1163                                 viafb_write_reg_mask(SR1E, VIASR,
1164                                         reg_val << 2, BIT2);
1165                                 break;
1166                         default:
1167                                 break;
1168                         }
1169                 } else {
1170                         break;
1171                 }
1172         }
1173         return count;
1174 }
1175
1176 static const struct file_operations viafb_dvp0_proc_fops = {
1177         .owner          = THIS_MODULE,
1178         .open           = viafb_dvp0_proc_open,
1179         .read           = seq_read,
1180         .llseek         = seq_lseek,
1181         .release        = single_release,
1182         .write          = viafb_dvp0_proc_write,
1183 };
1184
1185 static int viafb_dvp1_proc_show(struct seq_file *m, void *v)
1186 {
1187         u8 dvp1 = 0, dvp1_data_dri = 0, dvp1_clk_dri = 0;
1188         dvp1 = viafb_read_reg(VIACR, CR9B) & 0x0f;
1189         dvp1_data_dri = (viafb_read_reg(VIASR, SR65) & 0x0c) >> 2;
1190         dvp1_clk_dri = viafb_read_reg(VIASR, SR65) & 0x03;
1191         seq_printf(m, "%x %x %x\n", dvp1, dvp1_data_dri, dvp1_clk_dri);
1192         return 0;
1193 }
1194
1195 static int viafb_dvp1_proc_open(struct inode *inode, struct file *file)
1196 {
1197         return single_open(file, viafb_dvp1_proc_show, NULL);
1198 }
1199
1200 static ssize_t viafb_dvp1_proc_write(struct file *file,
1201         const char __user *buffer, size_t count, loff_t *pos)
1202 {
1203         char buf[20], *value, *pbuf;
1204         u8 reg_val = 0;
1205         unsigned long length, i;
1206         if (count < 1)
1207                 return -EINVAL;
1208         length = count > 20 ? 20 : count;
1209         if (copy_from_user(&buf[0], buffer, length))
1210                 return -EFAULT;
1211         buf[length - 1] = '\0'; /*Ensure end string */
1212         pbuf = &buf[0];
1213         for (i = 0; i < 3; i++) {
1214                 value = strsep(&pbuf, " ");
1215                 if (value != NULL) {
1216                         if (kstrtou8(value, 0, &reg_val) < 0)
1217                                 return -EINVAL;
1218                         switch (i) {
1219                         case 0:
1220                                 viafb_write_reg_mask(CR9B, VIACR,
1221                                         reg_val, 0x0f);
1222                                 break;
1223                         case 1:
1224                                 viafb_write_reg_mask(SR65, VIASR,
1225                                         reg_val << 2, 0x0c);
1226                                 break;
1227                         case 2:
1228                                 viafb_write_reg_mask(SR65, VIASR,
1229                                         reg_val, 0x03);
1230                                 break;
1231                         default:
1232                                 break;
1233                         }
1234                 } else {
1235                         break;
1236                 }
1237         }
1238         return count;
1239 }
1240
1241 static const struct file_operations viafb_dvp1_proc_fops = {
1242         .owner          = THIS_MODULE,
1243         .open           = viafb_dvp1_proc_open,
1244         .read           = seq_read,
1245         .llseek         = seq_lseek,
1246         .release        = single_release,
1247         .write          = viafb_dvp1_proc_write,
1248 };
1249
1250 static int viafb_dfph_proc_show(struct seq_file *m, void *v)
1251 {
1252         u8 dfp_high = 0;
1253         dfp_high = viafb_read_reg(VIACR, CR97) & 0x0f;
1254         seq_printf(m, "%x\n", dfp_high);
1255         return 0;
1256 }
1257
1258 static int viafb_dfph_proc_open(struct inode *inode, struct file *file)
1259 {
1260         return single_open(file, viafb_dfph_proc_show, NULL);
1261 }
1262
1263 static ssize_t viafb_dfph_proc_write(struct file *file,
1264         const char __user *buffer, size_t count, loff_t *pos)
1265 {
1266         int err;
1267         u8 reg_val;
1268         err = kstrtou8_from_user(buffer, count, 0, &reg_val);
1269         if (err)
1270                 return err;
1271
1272         viafb_write_reg_mask(CR97, VIACR, reg_val, 0x0f);
1273         return count;
1274 }
1275
1276 static const struct file_operations viafb_dfph_proc_fops = {
1277         .owner          = THIS_MODULE,
1278         .open           = viafb_dfph_proc_open,
1279         .read           = seq_read,
1280         .llseek         = seq_lseek,
1281         .release        = single_release,
1282         .write          = viafb_dfph_proc_write,
1283 };
1284
1285 static int viafb_dfpl_proc_show(struct seq_file *m, void *v)
1286 {
1287         u8 dfp_low = 0;
1288         dfp_low = viafb_read_reg(VIACR, CR99) & 0x0f;
1289         seq_printf(m, "%x\n", dfp_low);
1290         return 0;
1291 }
1292
1293 static int viafb_dfpl_proc_open(struct inode *inode, struct file *file)
1294 {
1295         return single_open(file, viafb_dfpl_proc_show, NULL);
1296 }
1297
1298 static ssize_t viafb_dfpl_proc_write(struct file *file,
1299         const char __user *buffer, size_t count, loff_t *pos)
1300 {
1301         int err;
1302         u8 reg_val;
1303         err = kstrtou8_from_user(buffer, count, 0, &reg_val);
1304         if (err)
1305                 return err;
1306
1307         viafb_write_reg_mask(CR99, VIACR, reg_val, 0x0f);
1308         return count;
1309 }
1310
1311 static const struct file_operations viafb_dfpl_proc_fops = {
1312         .owner          = THIS_MODULE,
1313         .open           = viafb_dfpl_proc_open,
1314         .read           = seq_read,
1315         .llseek         = seq_lseek,
1316         .release        = single_release,
1317         .write          = viafb_dfpl_proc_write,
1318 };
1319
1320 static int viafb_vt1636_proc_show(struct seq_file *m, void *v)
1321 {
1322         u8 vt1636_08 = 0, vt1636_09 = 0;
1323         switch (viaparinfo->chip_info->lvds_chip_info.lvds_chip_name) {
1324         case VT1636_LVDS:
1325                 vt1636_08 =
1326                     viafb_gpio_i2c_read_lvds(viaparinfo->lvds_setting_info,
1327                     &viaparinfo->chip_info->lvds_chip_info, 0x08) & 0x0f;
1328                 vt1636_09 =
1329                     viafb_gpio_i2c_read_lvds(viaparinfo->lvds_setting_info,
1330                     &viaparinfo->chip_info->lvds_chip_info, 0x09) & 0x1f;
1331                 seq_printf(m, "%x %x\n", vt1636_08, vt1636_09);
1332                 break;
1333         default:
1334                 break;
1335         }
1336         switch (viaparinfo->chip_info->lvds_chip_info2.lvds_chip_name) {
1337         case VT1636_LVDS:
1338                 vt1636_08 =
1339                     viafb_gpio_i2c_read_lvds(viaparinfo->lvds_setting_info2,
1340                         &viaparinfo->chip_info->lvds_chip_info2, 0x08) & 0x0f;
1341                 vt1636_09 =
1342                     viafb_gpio_i2c_read_lvds(viaparinfo->lvds_setting_info2,
1343                         &viaparinfo->chip_info->lvds_chip_info2, 0x09) & 0x1f;
1344                 seq_printf(m, " %x %x\n", vt1636_08, vt1636_09);
1345                 break;
1346         default:
1347                 break;
1348         }
1349         return 0;
1350 }
1351
1352 static int viafb_vt1636_proc_open(struct inode *inode, struct file *file)
1353 {
1354         return single_open(file, viafb_vt1636_proc_show, NULL);
1355 }
1356
1357 static ssize_t viafb_vt1636_proc_write(struct file *file,
1358         const char __user *buffer, size_t count, loff_t *pos)
1359 {
1360         char buf[30], *value, *pbuf;
1361         struct IODATA reg_val;
1362         unsigned long length, i;
1363         if (count < 1)
1364                 return -EINVAL;
1365         length = count > 30 ? 30 : count;
1366         if (copy_from_user(&buf[0], buffer, length))
1367                 return -EFAULT;
1368         buf[length - 1] = '\0'; /*Ensure end string */
1369         pbuf = &buf[0];
1370         switch (viaparinfo->chip_info->lvds_chip_info.lvds_chip_name) {
1371         case VT1636_LVDS:
1372                 for (i = 0; i < 2; i++) {
1373                         value = strsep(&pbuf, " ");
1374                         if (value != NULL) {
1375                                 if (kstrtou8(value, 0, &reg_val.Data) < 0)
1376                                         return -EINVAL;
1377                                 switch (i) {
1378                                 case 0:
1379                                         reg_val.Index = 0x08;
1380                                         reg_val.Mask = 0x0f;
1381                                         viafb_gpio_i2c_write_mask_lvds
1382                                             (viaparinfo->lvds_setting_info,
1383                                             &viaparinfo->
1384                                             chip_info->lvds_chip_info,
1385                                              reg_val);
1386                                         break;
1387                                 case 1:
1388                                         reg_val.Index = 0x09;
1389                                         reg_val.Mask = 0x1f;
1390                                         viafb_gpio_i2c_write_mask_lvds
1391                                             (viaparinfo->lvds_setting_info,
1392                                             &viaparinfo->
1393                                             chip_info->lvds_chip_info,
1394                                              reg_val);
1395                                         break;
1396                                 default:
1397                                         break;
1398                                 }
1399                         } else {
1400                                 break;
1401                         }
1402                 }
1403                 break;
1404         default:
1405                 break;
1406         }
1407         switch (viaparinfo->chip_info->lvds_chip_info2.lvds_chip_name) {
1408         case VT1636_LVDS:
1409                 for (i = 0; i < 2; i++) {
1410                         value = strsep(&pbuf, " ");
1411                         if (value != NULL) {
1412                                 if (kstrtou8(value, 0, &reg_val.Data) < 0)
1413                                         return -EINVAL;
1414                                 switch (i) {
1415                                 case 0:
1416                                         reg_val.Index = 0x08;
1417                                         reg_val.Mask = 0x0f;
1418                                         viafb_gpio_i2c_write_mask_lvds
1419                                             (viaparinfo->lvds_setting_info2,
1420                                             &viaparinfo->
1421                                             chip_info->lvds_chip_info2,
1422                                              reg_val);
1423                                         break;
1424                                 case 1:
1425                                         reg_val.Index = 0x09;
1426                                         reg_val.Mask = 0x1f;
1427                                         viafb_gpio_i2c_write_mask_lvds
1428                                             (viaparinfo->lvds_setting_info2,
1429                                             &viaparinfo->
1430                                             chip_info->lvds_chip_info2,
1431                                              reg_val);
1432                                         break;
1433                                 default:
1434                                         break;
1435                                 }
1436                         } else {
1437                                 break;
1438                         }
1439                 }
1440                 break;
1441         default:
1442                 break;
1443         }
1444         return count;
1445 }
1446
1447 static const struct file_operations viafb_vt1636_proc_fops = {
1448         .owner          = THIS_MODULE,
1449         .open           = viafb_vt1636_proc_open,
1450         .read           = seq_read,
1451         .llseek         = seq_lseek,
1452         .release        = single_release,
1453         .write          = viafb_vt1636_proc_write,
1454 };
1455
1456 #endif /* CONFIG_FB_VIA_DIRECT_PROCFS */
1457
1458 static int __maybe_unused viafb_sup_odev_proc_show(struct seq_file *m, void *v)
1459 {
1460         via_odev_to_seq(m, supported_odev_map[
1461                 viaparinfo->shared->chip_info.gfx_chip_name]);
1462         return 0;
1463 }
1464
1465 static ssize_t odev_update(const char __user *buffer, size_t count, u32 *odev)
1466 {
1467         char buf[64], *ptr = buf;
1468         u32 devices;
1469         bool add, sub;
1470
1471         if (count < 1 || count > 63)
1472                 return -EINVAL;
1473         if (copy_from_user(&buf[0], buffer, count))
1474                 return -EFAULT;
1475         buf[count] = '\0';
1476         add = buf[0] == '+';
1477         sub = buf[0] == '-';
1478         if (add || sub)
1479                 ptr++;
1480         devices = via_parse_odev(ptr, &ptr);
1481         if (*ptr == '\n')
1482                 ptr++;
1483         if (*ptr != 0)
1484                 return -EINVAL;
1485         if (add)
1486                 *odev |= devices;
1487         else if (sub)
1488                 *odev &= ~devices;
1489         else
1490                 *odev = devices;
1491         return count;
1492 }
1493
1494 static int viafb_iga1_odev_proc_show(struct seq_file *m, void *v)
1495 {
1496         via_odev_to_seq(m, viaparinfo->shared->iga1_devices);
1497         return 0;
1498 }
1499
1500 static int viafb_iga1_odev_proc_open(struct inode *inode, struct file *file)
1501 {
1502         return single_open(file, viafb_iga1_odev_proc_show, NULL);
1503 }
1504
1505 static ssize_t viafb_iga1_odev_proc_write(struct file *file,
1506         const char __user *buffer, size_t count, loff_t *pos)
1507 {
1508         u32 dev_on, dev_off, dev_old, dev_new;
1509         ssize_t res;
1510
1511         dev_old = dev_new = viaparinfo->shared->iga1_devices;
1512         res = odev_update(buffer, count, &dev_new);
1513         if (res != count)
1514                 return res;
1515         dev_off = dev_old & ~dev_new;
1516         dev_on = dev_new & ~dev_old;
1517         viaparinfo->shared->iga1_devices = dev_new;
1518         viaparinfo->shared->iga2_devices &= ~dev_new;
1519         via_set_state(dev_off, VIA_STATE_OFF);
1520         via_set_source(dev_new, IGA1);
1521         via_set_state(dev_on, VIA_STATE_ON);
1522         return res;
1523 }
1524
1525 static const struct file_operations viafb_iga1_odev_proc_fops = {
1526         .owner          = THIS_MODULE,
1527         .open           = viafb_iga1_odev_proc_open,
1528         .read           = seq_read,
1529         .llseek         = seq_lseek,
1530         .release        = single_release,
1531         .write          = viafb_iga1_odev_proc_write,
1532 };
1533
1534 static int viafb_iga2_odev_proc_show(struct seq_file *m, void *v)
1535 {
1536         via_odev_to_seq(m, viaparinfo->shared->iga2_devices);
1537         return 0;
1538 }
1539
1540 static int viafb_iga2_odev_proc_open(struct inode *inode, struct file *file)
1541 {
1542         return single_open(file, viafb_iga2_odev_proc_show, NULL);
1543 }
1544
1545 static ssize_t viafb_iga2_odev_proc_write(struct file *file,
1546         const char __user *buffer, size_t count, loff_t *pos)
1547 {
1548         u32 dev_on, dev_off, dev_old, dev_new;
1549         ssize_t res;
1550
1551         dev_old = dev_new = viaparinfo->shared->iga2_devices;
1552         res = odev_update(buffer, count, &dev_new);
1553         if (res != count)
1554                 return res;
1555         dev_off = dev_old & ~dev_new;
1556         dev_on = dev_new & ~dev_old;
1557         viaparinfo->shared->iga2_devices = dev_new;
1558         viaparinfo->shared->iga1_devices &= ~dev_new;
1559         via_set_state(dev_off, VIA_STATE_OFF);
1560         via_set_source(dev_new, IGA2);
1561         via_set_state(dev_on, VIA_STATE_ON);
1562         return res;
1563 }
1564
1565 static const struct file_operations viafb_iga2_odev_proc_fops = {
1566         .owner          = THIS_MODULE,
1567         .open           = viafb_iga2_odev_proc_open,
1568         .read           = seq_read,
1569         .llseek         = seq_lseek,
1570         .release        = single_release,
1571         .write          = viafb_iga2_odev_proc_write,
1572 };
1573
1574 #define IS_VT1636(lvds_chip)    ((lvds_chip).lvds_chip_name == VT1636_LVDS)
1575 static void viafb_init_proc(struct viafb_shared *shared)
1576 {
1577         struct proc_dir_entry *iga1_entry, *iga2_entry,
1578                 *viafb_entry = proc_mkdir("viafb", NULL);
1579
1580         shared->proc_entry = viafb_entry;
1581         if (viafb_entry) {
1582 #ifdef CONFIG_FB_VIA_DIRECT_PROCFS
1583                 proc_create("dvp0", 0, viafb_entry, &viafb_dvp0_proc_fops);
1584                 proc_create("dvp1", 0, viafb_entry, &viafb_dvp1_proc_fops);
1585                 proc_create("dfph", 0, viafb_entry, &viafb_dfph_proc_fops);
1586                 proc_create("dfpl", 0, viafb_entry, &viafb_dfpl_proc_fops);
1587                 if (IS_VT1636(shared->chip_info.lvds_chip_info)
1588                         || IS_VT1636(shared->chip_info.lvds_chip_info2))
1589                         proc_create("vt1636", 0, viafb_entry,
1590                                 &viafb_vt1636_proc_fops);
1591 #endif /* CONFIG_FB_VIA_DIRECT_PROCFS */
1592
1593                 proc_create_single("supported_output_devices", 0, viafb_entry,
1594                         viafb_sup_odev_proc_show);
1595                 iga1_entry = proc_mkdir("iga1", viafb_entry);
1596                 shared->iga1_proc_entry = iga1_entry;
1597                 proc_create("output_devices", 0, iga1_entry,
1598                         &viafb_iga1_odev_proc_fops);
1599                 iga2_entry = proc_mkdir("iga2", viafb_entry);
1600                 shared->iga2_proc_entry = iga2_entry;
1601                 proc_create("output_devices", 0, iga2_entry,
1602                         &viafb_iga2_odev_proc_fops);
1603         }
1604 }
1605 static void viafb_remove_proc(struct viafb_shared *shared)
1606 {
1607         struct proc_dir_entry *viafb_entry = shared->proc_entry;
1608
1609         if (!viafb_entry)
1610                 return;
1611
1612         remove_proc_entry("output_devices", shared->iga2_proc_entry);
1613         remove_proc_entry("iga2", viafb_entry);
1614         remove_proc_entry("output_devices", shared->iga1_proc_entry);
1615         remove_proc_entry("iga1", viafb_entry);
1616         remove_proc_entry("supported_output_devices", viafb_entry);
1617
1618 #ifdef CONFIG_FB_VIA_DIRECT_PROCFS
1619         remove_proc_entry("dvp0", viafb_entry);/* parent dir */
1620         remove_proc_entry("dvp1", viafb_entry);
1621         remove_proc_entry("dfph", viafb_entry);
1622         remove_proc_entry("dfpl", viafb_entry);
1623         if (IS_VT1636(shared->chip_info.lvds_chip_info)
1624                 || IS_VT1636(shared->chip_info.lvds_chip_info2))
1625                 remove_proc_entry("vt1636", viafb_entry);
1626 #endif /* CONFIG_FB_VIA_DIRECT_PROCFS */
1627
1628         remove_proc_entry("viafb", NULL);
1629 }
1630 #undef IS_VT1636
1631
1632 static int parse_mode(const char *str, u32 devices, u32 *xres, u32 *yres)
1633 {
1634         const struct fb_videomode *mode = NULL;
1635         char *ptr;
1636
1637         if (!str) {
1638                 if (devices == VIA_CRT)
1639                         mode = via_aux_get_preferred_mode(
1640                                 viaparinfo->shared->i2c_26);
1641                 else if (devices == VIA_DVP1)
1642                         mode = via_aux_get_preferred_mode(
1643                                 viaparinfo->shared->i2c_31);
1644
1645                 if (mode) {
1646                         *xres = mode->xres;
1647                         *yres = mode->yres;
1648                 } else if (machine_is_olpc()) {
1649                         *xres = 1200;
1650                         *yres = 900;
1651                 } else {
1652                         *xres = 640;
1653                         *yres = 480;
1654                 }
1655                 return 0;
1656         }
1657
1658         *xres = simple_strtoul(str, &ptr, 10);
1659         if (ptr[0] != 'x')
1660                 return -EINVAL;
1661
1662         *yres = simple_strtoul(&ptr[1], &ptr, 10);
1663         if (ptr[0])
1664                 return -EINVAL;
1665
1666         return 0;
1667 }
1668
1669
1670 #ifdef CONFIG_PM
1671 static int viafb_suspend(void *unused)
1672 {
1673         console_lock();
1674         fb_set_suspend(viafbinfo, 1);
1675         viafb_sync(viafbinfo);
1676         console_unlock();
1677
1678         return 0;
1679 }
1680
1681 static int viafb_resume(void *unused)
1682 {
1683         console_lock();
1684         if (viaparinfo->shared->vdev->engine_mmio)
1685                 viafb_reset_engine(viaparinfo);
1686         viafb_set_par(viafbinfo);
1687         if (viafb_dual_fb)
1688                 viafb_set_par(viafbinfo1);
1689         fb_set_suspend(viafbinfo, 0);
1690
1691         console_unlock();
1692         return 0;
1693 }
1694
1695 static struct viafb_pm_hooks viafb_fb_pm_hooks = {
1696         .suspend = viafb_suspend,
1697         .resume = viafb_resume
1698 };
1699
1700 #endif
1701
1702 static void i2c_bus_probe(struct viafb_shared *shared)
1703 {
1704         /* should be always CRT */
1705         printk(KERN_INFO "viafb: Probing I2C bus 0x26\n");
1706         shared->i2c_26 = via_aux_probe(viafb_find_i2c_adapter(VIA_PORT_26));
1707
1708         /* seems to be usually DVP1 */
1709         printk(KERN_INFO "viafb: Probing I2C bus 0x31\n");
1710         shared->i2c_31 = via_aux_probe(viafb_find_i2c_adapter(VIA_PORT_31));
1711
1712         /* FIXME: what is this? */
1713         if (!machine_is_olpc()) {
1714                 printk(KERN_INFO "viafb: Probing I2C bus 0x2C\n");
1715                 shared->i2c_2C = via_aux_probe(viafb_find_i2c_adapter(VIA_PORT_2C));
1716         }
1717
1718         printk(KERN_INFO "viafb: Finished I2C bus probing");
1719 }
1720
1721 static void i2c_bus_free(struct viafb_shared *shared)
1722 {
1723         via_aux_free(shared->i2c_26);
1724         via_aux_free(shared->i2c_31);
1725         via_aux_free(shared->i2c_2C);
1726 }
1727
1728 int via_fb_pci_probe(struct viafb_dev *vdev)
1729 {
1730         u32 default_xres, default_yres;
1731         struct fb_var_screeninfo default_var;
1732         int rc;
1733         u32 viafb_par_length;
1734
1735         DEBUG_MSG(KERN_INFO "VIAFB PCI Probe!!\n");
1736         memset(&default_var, 0, sizeof(default_var));
1737         viafb_par_length = ALIGN(sizeof(struct viafb_par), BITS_PER_LONG/8);
1738
1739         /* Allocate fb_info and ***_par here, also including some other needed
1740          * variables
1741         */
1742         viafbinfo = framebuffer_alloc(viafb_par_length +
1743                 ALIGN(sizeof(struct viafb_shared), BITS_PER_LONG/8),
1744                 &vdev->pdev->dev);
1745         if (!viafbinfo)
1746                 return -ENOMEM;
1747
1748         viaparinfo = (struct viafb_par *)viafbinfo->par;
1749         viaparinfo->shared = viafbinfo->par + viafb_par_length;
1750         viaparinfo->shared->vdev = vdev;
1751         viaparinfo->vram_addr = 0;
1752         viaparinfo->tmds_setting_info = &viaparinfo->shared->tmds_setting_info;
1753         viaparinfo->lvds_setting_info = &viaparinfo->shared->lvds_setting_info;
1754         viaparinfo->lvds_setting_info2 =
1755                 &viaparinfo->shared->lvds_setting_info2;
1756         viaparinfo->chip_info = &viaparinfo->shared->chip_info;
1757
1758         i2c_bus_probe(viaparinfo->shared);
1759         if (viafb_dual_fb)
1760                 viafb_SAMM_ON = 1;
1761         parse_lcd_port();
1762         parse_dvi_port();
1763
1764         viafb_init_chip_info(vdev->chip_type);
1765         /*
1766          * The framebuffer will have been successfully mapped by
1767          * the core (or we'd not be here), but we still need to
1768          * set up our own accounting.
1769          */
1770         viaparinfo->fbmem = vdev->fbmem_start;
1771         viaparinfo->memsize = vdev->fbmem_len;
1772         viaparinfo->fbmem_free = viaparinfo->memsize;
1773         viaparinfo->fbmem_used = 0;
1774         viafbinfo->screen_base = vdev->fbmem;
1775
1776         viafbinfo->fix.mmio_start = vdev->engine_start;
1777         viafbinfo->fix.mmio_len = vdev->engine_len;
1778         viafbinfo->node = 0;
1779         viafbinfo->fbops = &viafb_ops;
1780         viafbinfo->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN;
1781
1782         viafbinfo->pseudo_palette = pseudo_pal;
1783         if (viafb_accel && !viafb_setup_engine(viafbinfo)) {
1784                 viafbinfo->flags |= FBINFO_HWACCEL_COPYAREA |
1785                         FBINFO_HWACCEL_FILLRECT |  FBINFO_HWACCEL_IMAGEBLIT;
1786                 default_var.accel_flags = FB_ACCELF_TEXT;
1787         } else {
1788                 viafbinfo->flags |= FBINFO_HWACCEL_DISABLED;
1789                 default_var.accel_flags = 0;
1790         }
1791
1792         if (viafb_second_size && (viafb_second_size < 8)) {
1793                 viafb_second_offset = viaparinfo->fbmem_free -
1794                         viafb_second_size * 1024 * 1024;
1795         } else {
1796                 viafb_second_size = 8;
1797                 viafb_second_offset = viaparinfo->fbmem_free -
1798                         viafb_second_size * 1024 * 1024;
1799         }
1800
1801         parse_mode(viafb_mode, viaparinfo->shared->iga1_devices,
1802                 &default_xres, &default_yres);
1803         if (viafb_SAMM_ON == 1)
1804                 parse_mode(viafb_mode1, viaparinfo->shared->iga2_devices,
1805                         &viafb_second_xres, &viafb_second_yres);
1806
1807         default_var.xres = default_xres;
1808         default_var.yres = default_yres;
1809         default_var.xres_virtual = default_xres;
1810         default_var.yres_virtual = default_yres;
1811         default_var.bits_per_pixel = viafb_bpp;
1812         viafb_fill_var_timing_info(&default_var, viafb_get_best_mode(
1813                 default_var.xres, default_var.yres, viafb_refresh));
1814         viafb_setup_fixinfo(&viafbinfo->fix, viaparinfo);
1815         viafbinfo->var = default_var;
1816
1817         if (viafb_dual_fb) {
1818                 viafbinfo1 = framebuffer_alloc(viafb_par_length,
1819                                 &vdev->pdev->dev);
1820                 if (!viafbinfo1) {
1821                         rc = -ENOMEM;
1822                         goto out_fb_release;
1823                 }
1824                 viaparinfo1 = viafbinfo1->par;
1825                 memcpy(viaparinfo1, viaparinfo, viafb_par_length);
1826                 viaparinfo1->vram_addr = viafb_second_offset;
1827                 viaparinfo1->memsize = viaparinfo->memsize -
1828                         viafb_second_offset;
1829                 viaparinfo->memsize = viafb_second_offset;
1830                 viaparinfo1->fbmem = viaparinfo->fbmem + viafb_second_offset;
1831
1832                 viaparinfo1->fbmem_used = viaparinfo->fbmem_used;
1833                 viaparinfo1->fbmem_free = viaparinfo1->memsize -
1834                         viaparinfo1->fbmem_used;
1835                 viaparinfo->fbmem_free = viaparinfo->memsize;
1836                 viaparinfo->fbmem_used = 0;
1837
1838                 viaparinfo->iga_path = IGA1;
1839                 viaparinfo1->iga_path = IGA2;
1840                 memcpy(viafbinfo1, viafbinfo, sizeof(struct fb_info));
1841                 viafbinfo1->par = viaparinfo1;
1842                 viafbinfo1->screen_base = viafbinfo->screen_base +
1843                         viafb_second_offset;
1844
1845                 default_var.xres = viafb_second_xres;
1846                 default_var.yres = viafb_second_yres;
1847                 default_var.xres_virtual = viafb_second_xres;
1848                 default_var.yres_virtual = viafb_second_yres;
1849                 default_var.bits_per_pixel = viafb_bpp1;
1850                 viafb_fill_var_timing_info(&default_var, viafb_get_best_mode(
1851                         default_var.xres, default_var.yres, viafb_refresh1));
1852
1853                 viafb_setup_fixinfo(&viafbinfo1->fix, viaparinfo1);
1854                 viafb_check_var(&default_var, viafbinfo1);
1855                 viafbinfo1->var = default_var;
1856                 viafb_update_fix(viafbinfo1);
1857                 viaparinfo1->depth = fb_get_color_depth(&viafbinfo1->var,
1858                         &viafbinfo1->fix);
1859         }
1860
1861         viafb_check_var(&viafbinfo->var, viafbinfo);
1862         viafb_update_fix(viafbinfo);
1863         viaparinfo->depth = fb_get_color_depth(&viafbinfo->var,
1864                 &viafbinfo->fix);
1865         default_var.activate = FB_ACTIVATE_NOW;
1866         rc = fb_alloc_cmap(&viafbinfo->cmap, 256, 0);
1867         if (rc)
1868                 goto out_fb1_release;
1869
1870         if (viafb_dual_fb && (viafb_primary_dev == LCD_Device)
1871             && (viaparinfo->chip_info->gfx_chip_name == UNICHROME_CLE266)) {
1872                 rc = register_framebuffer(viafbinfo1);
1873                 if (rc)
1874                         goto out_dealloc_cmap;
1875         }
1876         rc = register_framebuffer(viafbinfo);
1877         if (rc)
1878                 goto out_fb1_unreg_lcd_cle266;
1879
1880         if (viafb_dual_fb && ((viafb_primary_dev != LCD_Device)
1881                         || (viaparinfo->chip_info->gfx_chip_name !=
1882                         UNICHROME_CLE266))) {
1883                 rc = register_framebuffer(viafbinfo1);
1884                 if (rc)
1885                         goto out_fb_unreg;
1886         }
1887         DEBUG_MSG(KERN_INFO "fb%d: %s frame buffer device %dx%d-%dbpp\n",
1888                   viafbinfo->node, viafbinfo->fix.id, default_var.xres,
1889                   default_var.yres, default_var.bits_per_pixel);
1890
1891         viafb_init_proc(viaparinfo->shared);
1892         viafb_init_dac(IGA2);
1893
1894 #ifdef CONFIG_PM
1895         viafb_pm_register(&viafb_fb_pm_hooks);
1896 #endif
1897         return 0;
1898
1899 out_fb_unreg:
1900         unregister_framebuffer(viafbinfo);
1901 out_fb1_unreg_lcd_cle266:
1902         if (viafb_dual_fb && (viafb_primary_dev == LCD_Device)
1903             && (viaparinfo->chip_info->gfx_chip_name == UNICHROME_CLE266))
1904                 unregister_framebuffer(viafbinfo1);
1905 out_dealloc_cmap:
1906         fb_dealloc_cmap(&viafbinfo->cmap);
1907 out_fb1_release:
1908         framebuffer_release(viafbinfo1);
1909 out_fb_release:
1910         i2c_bus_free(viaparinfo->shared);
1911         framebuffer_release(viafbinfo);
1912         return rc;
1913 }
1914
1915 void via_fb_pci_remove(struct pci_dev *pdev)
1916 {
1917         DEBUG_MSG(KERN_INFO "via_pci_remove!\n");
1918         fb_dealloc_cmap(&viafbinfo->cmap);
1919         unregister_framebuffer(viafbinfo);
1920         if (viafb_dual_fb)
1921                 unregister_framebuffer(viafbinfo1);
1922         viafb_remove_proc(viaparinfo->shared);
1923         i2c_bus_free(viaparinfo->shared);
1924         framebuffer_release(viafbinfo);
1925         if (viafb_dual_fb)
1926                 framebuffer_release(viafbinfo1);
1927 }
1928
1929 #ifndef MODULE
1930 static int __init viafb_setup(void)
1931 {
1932         char *this_opt;
1933         char *options;
1934
1935         DEBUG_MSG(KERN_INFO "viafb_setup!\n");
1936
1937         if (fb_get_options("viafb", &options))
1938                 return -ENODEV;
1939
1940         if (!options || !*options)
1941                 return 0;
1942
1943         while ((this_opt = strsep(&options, ",")) != NULL) {
1944                 if (!*this_opt)
1945                         continue;
1946
1947                 if (!strncmp(this_opt, "viafb_mode1=", 12)) {
1948                         viafb_mode1 = kstrdup(this_opt + 12, GFP_KERNEL);
1949                 } else if (!strncmp(this_opt, "viafb_mode=", 11)) {
1950                         viafb_mode = kstrdup(this_opt + 11, GFP_KERNEL);
1951                 } else if (!strncmp(this_opt, "viafb_bpp1=", 11)) {
1952                         if (kstrtouint(this_opt + 11, 0, &viafb_bpp1) < 0)
1953                                 return -EINVAL;
1954                 } else if (!strncmp(this_opt, "viafb_bpp=", 10)) {
1955                         if (kstrtouint(this_opt + 10, 0, &viafb_bpp) < 0)
1956                                 return -EINVAL;
1957                 } else if (!strncmp(this_opt, "viafb_refresh1=", 15)) {
1958                         if (kstrtoint(this_opt + 15, 0, &viafb_refresh1) < 0)
1959                                 return -EINVAL;
1960                 } else if (!strncmp(this_opt, "viafb_refresh=", 14)) {
1961                         if (kstrtoint(this_opt + 14, 0, &viafb_refresh) < 0)
1962                                 return -EINVAL;
1963                 } else if (!strncmp(this_opt, "viafb_lcd_dsp_method=", 21)) {
1964                         if (kstrtoint(this_opt + 21, 0,
1965                                       &viafb_lcd_dsp_method) < 0)
1966                                 return -EINVAL;
1967                 } else if (!strncmp(this_opt, "viafb_lcd_panel_id=", 19)) {
1968                         if (kstrtoint(this_opt + 19, 0,
1969                                       &viafb_lcd_panel_id) < 0)
1970                                 return -EINVAL;
1971                 } else if (!strncmp(this_opt, "viafb_accel=", 12)) {
1972                         if (kstrtoint(this_opt + 12, 0, &viafb_accel) < 0)
1973                                 return -EINVAL;
1974                 } else if (!strncmp(this_opt, "viafb_SAMM_ON=", 14)) {
1975                         if (kstrtoint(this_opt + 14, 0, &viafb_SAMM_ON) < 0)
1976                                 return -EINVAL;
1977                 } else if (!strncmp(this_opt, "viafb_active_dev=", 17)) {
1978                         viafb_active_dev = kstrdup(this_opt + 17, GFP_KERNEL);
1979                 } else if (!strncmp(this_opt,
1980                         "viafb_display_hardware_layout=", 30)) {
1981                         if (kstrtoint(this_opt + 30, 0,
1982                                       &viafb_display_hardware_layout) < 0)
1983                                 return -EINVAL;
1984                 } else if (!strncmp(this_opt, "viafb_second_size=", 18)) {
1985                         if (kstrtoint(this_opt + 18, 0, &viafb_second_size) < 0)
1986                                 return -EINVAL;
1987                 } else if (!strncmp(this_opt,
1988                         "viafb_platform_epia_dvi=", 24)) {
1989                         if (kstrtoint(this_opt + 24, 0,
1990                                       &viafb_platform_epia_dvi) < 0)
1991                                 return -EINVAL;
1992                 } else if (!strncmp(this_opt,
1993                         "viafb_device_lcd_dualedge=", 26)) {
1994                         if (kstrtoint(this_opt + 26, 0,
1995                                       &viafb_device_lcd_dualedge) < 0)
1996                                 return -EINVAL;
1997                 } else if (!strncmp(this_opt, "viafb_bus_width=", 16)) {
1998                         if (kstrtoint(this_opt + 16, 0, &viafb_bus_width) < 0)
1999                                 return -EINVAL;
2000                 } else if (!strncmp(this_opt, "viafb_lcd_mode=", 15)) {
2001                         if (kstrtoint(this_opt + 15, 0, &viafb_lcd_mode) < 0)
2002                                 return -EINVAL;
2003                 } else if (!strncmp(this_opt, "viafb_lcd_port=", 15)) {
2004                         viafb_lcd_port = kstrdup(this_opt + 15, GFP_KERNEL);
2005                 } else if (!strncmp(this_opt, "viafb_dvi_port=", 15)) {
2006                         viafb_dvi_port = kstrdup(this_opt + 15, GFP_KERNEL);
2007                 }
2008         }
2009         return 0;
2010 }
2011 #endif
2012
2013 /*
2014  * These are called out of via-core for now.
2015  */
2016 int __init viafb_init(void)
2017 {
2018         u32 dummy_x, dummy_y;
2019         int r = 0;
2020
2021         if (machine_is_olpc())
2022                 /* Apply XO-1.5-specific configuration. */
2023                 viafb_lcd_panel_id = 23;
2024
2025 #ifndef MODULE
2026         r = viafb_setup();
2027         if (r < 0)
2028                 return r;
2029 #endif
2030         if (parse_mode(viafb_mode, 0, &dummy_x, &dummy_y)
2031                 || !viafb_get_best_mode(dummy_x, dummy_y, viafb_refresh)
2032                 || parse_mode(viafb_mode1, 0, &dummy_x, &dummy_y)
2033                 || !viafb_get_best_mode(dummy_x, dummy_y, viafb_refresh1)
2034                 || viafb_bpp < 0 || viafb_bpp > 32
2035                 || viafb_bpp1 < 0 || viafb_bpp1 > 32
2036                 || parse_active_dev())
2037                 return -EINVAL;
2038
2039         printk(KERN_INFO
2040        "VIA Graphics Integration Chipset framebuffer %d.%d initializing\n",
2041                VERSION_MAJOR, VERSION_MINOR);
2042         return r;
2043 }
2044
2045 void __exit viafb_exit(void)
2046 {
2047         DEBUG_MSG(KERN_INFO "viafb_exit!\n");
2048 }
2049
2050 static struct fb_ops viafb_ops = {
2051         .owner = THIS_MODULE,
2052         .fb_open = viafb_open,
2053         .fb_release = viafb_release,
2054         .fb_check_var = viafb_check_var,
2055         .fb_set_par = viafb_set_par,
2056         .fb_setcolreg = viafb_setcolreg,
2057         .fb_pan_display = viafb_pan_display,
2058         .fb_blank = viafb_blank,
2059         .fb_fillrect = viafb_fillrect,
2060         .fb_copyarea = viafb_copyarea,
2061         .fb_imageblit = viafb_imageblit,
2062         .fb_cursor = viafb_cursor,
2063         .fb_ioctl = viafb_ioctl,
2064         .fb_sync = viafb_sync,
2065 };
2066
2067
2068 #ifdef MODULE
2069 module_param(viafb_mode, charp, S_IRUSR);
2070 MODULE_PARM_DESC(viafb_mode, "Set resolution (default=640x480)");
2071
2072 module_param(viafb_mode1, charp, S_IRUSR);
2073 MODULE_PARM_DESC(viafb_mode1, "Set resolution (default=640x480)");
2074
2075 module_param(viafb_bpp, int, S_IRUSR);
2076 MODULE_PARM_DESC(viafb_bpp, "Set color depth (default=32bpp)");
2077
2078 module_param(viafb_bpp1, int, S_IRUSR);
2079 MODULE_PARM_DESC(viafb_bpp1, "Set color depth (default=32bpp)");
2080
2081 module_param(viafb_refresh, int, S_IRUSR);
2082 MODULE_PARM_DESC(viafb_refresh,
2083         "Set CRT viafb_refresh rate (default = 60)");
2084
2085 module_param(viafb_refresh1, int, S_IRUSR);
2086 MODULE_PARM_DESC(viafb_refresh1,
2087         "Set CRT refresh rate (default = 60)");
2088
2089 module_param(viafb_lcd_panel_id, int, S_IRUSR);
2090 MODULE_PARM_DESC(viafb_lcd_panel_id,
2091         "Set Flat Panel type(Default=1024x768)");
2092
2093 module_param(viafb_lcd_dsp_method, int, S_IRUSR);
2094 MODULE_PARM_DESC(viafb_lcd_dsp_method,
2095         "Set Flat Panel display scaling method.(Default=Expansion)");
2096
2097 module_param(viafb_SAMM_ON, int, S_IRUSR);
2098 MODULE_PARM_DESC(viafb_SAMM_ON,
2099         "Turn on/off flag of SAMM(Default=OFF)");
2100
2101 module_param(viafb_accel, int, S_IRUSR);
2102 MODULE_PARM_DESC(viafb_accel,
2103         "Set 2D Hardware Acceleration: 0 = OFF, 1 = ON (default)");
2104
2105 module_param(viafb_active_dev, charp, S_IRUSR);
2106 MODULE_PARM_DESC(viafb_active_dev, "Specify active devices.");
2107
2108 module_param(viafb_display_hardware_layout, int, S_IRUSR);
2109 MODULE_PARM_DESC(viafb_display_hardware_layout,
2110         "Display Hardware Layout (LCD Only, DVI Only...,etc)");
2111
2112 module_param(viafb_second_size, int, S_IRUSR);
2113 MODULE_PARM_DESC(viafb_second_size,
2114         "Set secondary device memory size");
2115
2116 module_param(viafb_dual_fb, int, S_IRUSR);
2117 MODULE_PARM_DESC(viafb_dual_fb,
2118         "Turn on/off flag of dual framebuffer devices.(Default = OFF)");
2119
2120 module_param(viafb_platform_epia_dvi, int, S_IRUSR);
2121 MODULE_PARM_DESC(viafb_platform_epia_dvi,
2122         "Turn on/off flag of DVI devices on EPIA board.(Default = OFF)");
2123
2124 module_param(viafb_device_lcd_dualedge, int, S_IRUSR);
2125 MODULE_PARM_DESC(viafb_device_lcd_dualedge,
2126         "Turn on/off flag of dual edge panel.(Default = OFF)");
2127
2128 module_param(viafb_bus_width, int, S_IRUSR);
2129 MODULE_PARM_DESC(viafb_bus_width,
2130         "Set bus width of panel.(Default = 12)");
2131
2132 module_param(viafb_lcd_mode, int, S_IRUSR);
2133 MODULE_PARM_DESC(viafb_lcd_mode,
2134         "Set Flat Panel mode(Default=OPENLDI)");
2135
2136 module_param(viafb_lcd_port, charp, S_IRUSR);
2137 MODULE_PARM_DESC(viafb_lcd_port, "Specify LCD output port.");
2138
2139 module_param(viafb_dvi_port, charp, S_IRUSR);
2140 MODULE_PARM_DESC(viafb_dvi_port, "Specify DVI output port.");
2141
2142 MODULE_LICENSE("GPL");
2143 #endif