drivers/video/fbdev/via/viafbdev.c

   1 /*
   2  * Copyright 1998-2009 VIA Technologies, Inc. All Rights Reserved.
   3  * Copyright 2001-2008 S3 Graphics, Inc. All Rights Reserved.
   4
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU General Public
   7  * License as published by the Free Software Foundation;
   8  * either version 2, or (at your option) any later version.
   9
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTIES OR REPRESENTATIONS; without even
  12  * the implied warranty of MERCHANTABILITY or FITNESS FOR
  13  * A PARTICULAR PURPOSE.See the GNU General Public License
  14  * for more details.
  15
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc.,
  19  * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  20  */
  21
  22 #include <linux/compiler.h>
  23 #include <linux/module.h>
  24 #include <linux/seq_file.h>
  25 #include <linux/slab.h>
  26 #include <linux/stat.h>
  27 #include <linux/via-core.h>
  28 #include <linux/via_i2c.h>
  29
  30 #define _MASTER_FILE
  31 #include "global.h"
  32
  33 static char *viafb_name = "Via";
  34 static u32 pseudo_pal[17];
  35
  36 /* video mode */
  37 static char *viafb_mode;
  38 static char *viafb_mode1;
  39 static int viafb_bpp = 32;
  40 static int viafb_bpp1 = 32;
  41
  42 static unsigned int viafb_second_offset;
  43 static int viafb_second_size;
  44
  45 static int viafb_accel = 1;
  46
  47 /* Added for specifying active devices.*/
  48 static char *viafb_active_dev;
  49
  50 /*Added for specify lcd output port*/
  51 static char *viafb_lcd_port = "";
  52 static char *viafb_dvi_port = "";
  53
  54 static void retrieve_device_setting(struct viafb_ioctl_setting
  55         *setting_info);
  56 static int viafb_pan_display(struct fb_var_screeninfo *var,
  57         struct fb_info *info);
  58
  59 static struct fb_ops viafb_ops;
  60
  61 /* supported output devices on each IGP
  62  * only CX700, VX800, VX855, VX900 were documented
  63  * VIA_CRT should be everywhere
  64  * VIA_6C can be onle pre-CX700 (probably only on CLE266) as 6C is used for PLL
  65  * source selection on CX700 and later
  66  * K400 seems to support VIA_96, VIA_DVP1, VIA_LVDS{1,2} as in viamode.c
  67  */
  68 static const u32 supported_odev_map[] = {
  69         [UNICHROME_CLE266]      = VIA_CRT | VIA_LDVP0 | VIA_LDVP1,
  70         [UNICHROME_K400]        = VIA_CRT | VIA_DVP0 | VIA_DVP1 | VIA_LVDS1
  71                                 | VIA_LVDS2,
  72         [UNICHROME_K800]        = VIA_CRT | VIA_DVP0 | VIA_DVP1 | VIA_LVDS1
  73                                 | VIA_LVDS2,
  74         [UNICHROME_PM800]       = VIA_CRT | VIA_DVP0 | VIA_DVP1 | VIA_LVDS1
  75                                 | VIA_LVDS2,
  76         [UNICHROME_CN700]       = VIA_CRT | VIA_DVP0 | VIA_DVP1 | VIA_LVDS1
  77                                 | VIA_LVDS2,
  78         [UNICHROME_CX700]       = VIA_CRT | VIA_DVP1 | VIA_LVDS1 | VIA_LVDS2,
  79         [UNICHROME_CN750]       = VIA_CRT | VIA_DVP1 | VIA_LVDS1 | VIA_LVDS2,
  80         [UNICHROME_K8M890]      = VIA_CRT | VIA_DVP1 | VIA_LVDS1 | VIA_LVDS2,
  81         [UNICHROME_P4M890]      = VIA_CRT | VIA_DVP1 | VIA_LVDS1 | VIA_LVDS2,
  82         [UNICHROME_P4M900]      = VIA_CRT | VIA_DVP1 | VIA_LVDS1 | VIA_LVDS2,
  83         [UNICHROME_VX800]       = VIA_CRT | VIA_DVP1 | VIA_LVDS1 | VIA_LVDS2,
  84         [UNICHROME_VX855]       = VIA_CRT | VIA_DVP1 | VIA_LVDS1 | VIA_LVDS2,
  85         [UNICHROME_VX900]       = VIA_CRT | VIA_DVP1 | VIA_LVDS1 | VIA_LVDS2,
  86 };
  87
  88 static void viafb_fill_var_color_info(struct fb_var_screeninfo *var, u8 depth)
  89 {
  90         var->grayscale = 0;
  91         var->red.msb_right = 0;
  92         var->green.msb_right = 0;
  93         var->blue.msb_right = 0;
  94         var->transp.offset = 0;
  95         var->transp.length = 0;
  96         var->transp.msb_right = 0;
  97         var->nonstd = 0;
  98         switch (depth) {
  99         case 8:
 100                 var->bits_per_pixel = 8;
 101                 var->red.offset = 0;
 102                 var->green.offset = 0;
 103                 var->blue.offset = 0;
 104                 var->red.length = 8;
 105                 var->green.length = 8;
 106                 var->blue.length = 8;
 107                 break;
 108         case 15:
 109                 var->bits_per_pixel = 16;
 110                 var->red.offset = 10;
 111                 var->green.offset = 5;
 112                 var->blue.offset = 0;
 113                 var->red.length = 5;
 114                 var->green.length = 5;
 115                 var->blue.length = 5;
 116                 break;
 117         case 16:
 118                 var->bits_per_pixel = 16;
 119                 var->red.offset = 11;
 120                 var->green.offset = 5;
 121                 var->blue.offset = 0;
 122                 var->red.length = 5;
 123                 var->green.length = 6;
 124                 var->blue.length = 5;
 125                 break;
 126         case 24:
 127                 var->bits_per_pixel = 32;
 128                 var->red.offset = 16;
 129                 var->green.offset = 8;
 130                 var->blue.offset = 0;
 131                 var->red.length = 8;
 132                 var->green.length = 8;
 133                 var->blue.length = 8;
 134                 break;
 135         case 30:
 136                 var->bits_per_pixel = 32;
 137                 var->red.offset = 20;
 138                 var->green.offset = 10;
 139                 var->blue.offset = 0;
 140                 var->red.length = 10;
 141                 var->green.length = 10;
 142                 var->blue.length = 10;
 143                 break;
 144         }
 145 }
 146
 147 static void viafb_update_fix(struct fb_info *info)
 148 {
 149         u32 bpp = info->var.bits_per_pixel;
 150
 151         info->fix.visual =
 152                 bpp == 8 ? FB_VISUAL_PSEUDOCOLOR : FB_VISUAL_TRUECOLOR;
 153         info->fix.line_length = ALIGN(info->var.xres_virtual * bpp / 8,
 154                 VIA_PITCH_SIZE);
 155 }
 156
 157 static void viafb_setup_fixinfo(struct fb_fix_screeninfo *fix,
 158         struct viafb_par *viaparinfo)
 159 {
 160         memset(fix, 0, sizeof(struct fb_fix_screeninfo));
 161         strcpy(fix->id, viafb_name);
 162
 163         fix->smem_start = viaparinfo->fbmem;
 164         fix->smem_len = viaparinfo->fbmem_free;
 165
 166         fix->type = FB_TYPE_PACKED_PIXELS;
 167         fix->type_aux = 0;
 168         fix->visual = FB_VISUAL_TRUECOLOR;
 169
 170         fix->xpanstep = fix->ywrapstep = 0;
 171         fix->ypanstep = 1;
 172
 173         /* Just tell the accel name */
 174         viafbinfo->fix.accel = FB_ACCEL_VIA_UNICHROME;
 175 }
 176 static int viafb_open(struct fb_info *info, int user)
 177 {
 178         DEBUG_MSG(KERN_INFO "viafb_open!\n");
 179         return 0;
 180 }
 181
 182 static int viafb_release(struct fb_info *info, int user)
 183 {
 184         DEBUG_MSG(KERN_INFO "viafb_release!\n");
 185         return 0;
 186 }
 187
 188 static inline int get_var_refresh(struct fb_var_screeninfo *var)
 189 {
 190         u32 htotal, vtotal;
 191
 192         htotal = var->left_margin + var->xres + var->right_margin
 193                 + var->hsync_len;
 194         vtotal = var->upper_margin + var->yres + var->lower_margin
 195                 + var->vsync_len;
 196         return PICOS2KHZ(var->pixclock) * 1000 / (htotal * vtotal);
 197 }
 198
 199 static int viafb_check_var(struct fb_var_screeninfo *var,
 200         struct fb_info *info)
 201 {
 202         int depth, refresh;
 203         struct viafb_par *ppar = info->par;
 204         u32 line;
 205
 206         DEBUG_MSG(KERN_INFO "viafb_check_var!\n");
 207         /* Sanity check */
 208         /* HW neither support interlacte nor double-scaned mode */
 209         if (var->vmode & FB_VMODE_INTERLACED || var->vmode & FB_VMODE_DOUBLE)
 210                 return -EINVAL;
 211
 212         /* the refresh rate is not important here, as we only want to know
 213          * whether the resolution exists
 214          */
 215         if (!viafb_get_best_mode(var->xres, var->yres, 60)) {
 216                 DEBUG_MSG(KERN_INFO
 217                           "viafb: Mode %dx%dx%d not supported!!\n",
 218                           var->xres, var->yres, var->bits_per_pixel);
 219                 return -EINVAL;
 220         }
 221
 222         depth = fb_get_color_depth(var, &info->fix);
 223         if (!depth)
 224                 depth = var->bits_per_pixel;
 225
 226         if (depth < 0 || depth > 32)
 227                 return -EINVAL;
 228         else if (!depth)
 229                 depth = 24;
 230         else if (depth == 15 && viafb_dual_fb && ppar->iga_path == IGA1)
 231                 depth = 15;
 232         else if (depth == 30)
 233                 depth = 30;
 234         else if (depth <= 8)
 235                 depth = 8;
 236         else if (depth <= 16)
 237                 depth = 16;
 238         else
 239                 depth = 24;
 240
 241         viafb_fill_var_color_info(var, depth);
 242         if (var->xres_virtual < var->xres)
 243                 var->xres_virtual = var->xres;
 244
 245         line = ALIGN(var->xres_virtual * var->bits_per_pixel / 8,
 246                 VIA_PITCH_SIZE);
 247         if (line > VIA_PITCH_MAX || line * var->yres_virtual > ppar->memsize)
 248                 return -EINVAL;
 249
 250         /* Based on var passed in to calculate the refresh,
 251          * because our driver use some modes special.
 252          */
 253         refresh = viafb_get_refresh(var->xres, var->yres,
 254                 get_var_refresh(var));
 255
 256         /* Adjust var according to our driver's own table */
 257         viafb_fill_var_timing_info(var,
 258                 viafb_get_best_mode(var->xres, var->yres, refresh));
 259         if (var->accel_flags & FB_ACCELF_TEXT &&
 260                 !ppar->shared->vdev->engine_mmio)
 261                 var->accel_flags = 0;
 262
 263         return 0;
 264 }
 265
 266 static int viafb_set_par(struct fb_info *info)
 267 {
 268         struct viafb_par *viapar = info->par;
 269         int refresh;
 270         DEBUG_MSG(KERN_INFO "viafb_set_par!\n");
 271
 272         viafb_update_fix(info);
 273         viapar->depth = fb_get_color_depth(&info->var, &info->fix);
 274         viafb_update_device_setting(viafbinfo->var.xres, viafbinfo->var.yres,
 275                 viafbinfo->var.bits_per_pixel, 0);
 276
 277         if (viafb_dual_fb) {
 278                 viafb_update_device_setting(viafbinfo1->var.xres,
 279                         viafbinfo1->var.yres, viafbinfo1->var.bits_per_pixel,
 280                         1);
 281         } else if (viafb_SAMM_ON == 1) {
 282                 DEBUG_MSG(KERN_INFO
 283                 "viafb_second_xres = %d, viafb_second_yres = %d, bpp = %d\n",
 284                           viafb_second_xres, viafb_second_yres, viafb_bpp1);
 285
 286                 viafb_update_device_setting(viafb_second_xres,
 287                         viafb_second_yres, viafb_bpp1, 1);
 288         }
 289
 290         refresh = get_var_refresh(&info->var);
 291         if (viafb_dual_fb && viapar->iga_path == IGA2) {
 292                 viafb_bpp1 = info->var.bits_per_pixel;
 293                 viafb_refresh1 = refresh;
 294         } else {
 295                 viafb_bpp = info->var.bits_per_pixel;
 296                 viafb_refresh = refresh;
 297         }
 298
 299         if (info->var.accel_flags & FB_ACCELF_TEXT)
 300                 info->flags &= ~FBINFO_HWACCEL_DISABLED;
 301         else
 302                 info->flags |= FBINFO_HWACCEL_DISABLED;
 303         viafb_setmode();
 304         viafb_pan_display(&info->var, info);
 305
 306         return 0;
 307 }
 308
 309 /* Set one color register */
 310 static int viafb_setcolreg(unsigned regno, unsigned red, unsigned green,
 311 unsigned blue, unsigned transp, struct fb_info *info)
 312 {
 313         struct viafb_par *viapar = info->par;
 314         u32 r, g, b;
 315
 316         if (info->fix.visual == FB_VISUAL_PSEUDOCOLOR) {
 317                 if (regno > 255)
 318                         return -EINVAL;
 319
 320                 if (!viafb_dual_fb || viapar->iga_path == IGA1)
 321                         viafb_set_primary_color_register(regno, red >> 8,
 322                                 green >> 8, blue >> 8);
 323
 324                 if (!viafb_dual_fb || viapar->iga_path == IGA2)
 325                         viafb_set_secondary_color_register(regno, red >> 8,
 326                                 green >> 8, blue >> 8);
 327         } else {
 328                 if (regno > 15)
 329                         return -EINVAL;
 330
 331                 r = (red >> (16 - info->var.red.length))
 332                         << info->var.red.offset;
 333                 b = (blue >> (16 - info->var.blue.length))
 334                         << info->var.blue.offset;
 335                 g = (green >> (16 - info->var.green.length))
 336                         << info->var.green.offset;
 337                 ((u32 *) info->pseudo_palette)[regno] = r | g | b;
 338         }
 339
 340         return 0;
 341 }
 342
 343 static int viafb_pan_display(struct fb_var_screeninfo *var,
 344         struct fb_info *info)
 345 {
 346         struct viafb_par *viapar = info->par;
 347         u32 vram_addr = viapar->vram_addr
 348                 + var->yoffset * info->fix.line_length
 349                 + var->xoffset * info->var.bits_per_pixel / 8;
 350
 351         DEBUG_MSG(KERN_DEBUG "viafb_pan_display, address = %d\n", vram_addr);
 352         if (!viafb_dual_fb) {
 353                 via_set_primary_address(vram_addr);
 354                 via_set_secondary_address(vram_addr);
 355         } else if (viapar->iga_path == IGA1)
 356                 via_set_primary_address(vram_addr);
 357         else
 358                 via_set_secondary_address(vram_addr);
 359
 360         return 0;
 361 }
 362
 363 static int viafb_blank(int blank_mode, struct fb_info *info)
 364 {
 365         DEBUG_MSG(KERN_INFO "viafb_blank!\n");
 366         /* clear DPMS setting */
 367
 368         switch (blank_mode) {
 369         case FB_BLANK_UNBLANK:
 370                 /* Screen: On, HSync: On, VSync: On */
 371                 /* control CRT monitor power management */
 372                 via_set_state(VIA_CRT, VIA_STATE_ON);
 373                 break;
 374         case FB_BLANK_HSYNC_SUSPEND:
 375                 /* Screen: Off, HSync: Off, VSync: On */
 376                 /* control CRT monitor power management */
 377                 via_set_state(VIA_CRT, VIA_STATE_STANDBY);
 378                 break;
 379         case FB_BLANK_VSYNC_SUSPEND:
 380                 /* Screen: Off, HSync: On, VSync: Off */
 381                 /* control CRT monitor power management */
 382                 via_set_state(VIA_CRT, VIA_STATE_SUSPEND);
 383                 break;
 384         case FB_BLANK_POWERDOWN:
 385                 /* Screen: Off, HSync: Off, VSync: Off */
 386                 /* control CRT monitor power management */
 387                 via_set_state(VIA_CRT, VIA_STATE_OFF);
 388                 break;
 389         }
 390
 391         return 0;
 392 }
 393
 394 static int viafb_ioctl(struct fb_info *info, u_int cmd, u_long arg)
 395 {
 396         union {
 397                 struct viafb_ioctl_mode viamode;
 398                 struct viafb_ioctl_samm viasamm;
 399                 struct viafb_driver_version driver_version;
 400                 struct fb_var_screeninfo sec_var;
 401                 struct _panel_size_pos_info panel_pos_size_para;
 402                 struct viafb_ioctl_setting viafb_setting;
 403                 struct device_t active_dev;
 404         } u;
 405         u32 state_info = 0;
 406         u32 *viafb_gamma_table;
 407         char driver_name[] = "viafb";
 408
 409         u32 __user *argp = (u32 __user *) arg;
 410         u32 gpu32;
 411
 412         DEBUG_MSG(KERN_INFO "viafb_ioctl: 0x%X !!\n", cmd);
 413         printk(KERN_WARNING "viafb_ioctl: Please avoid this interface as it is unstable and might change or vanish at any time!\n");
 414         memset(&u, 0, sizeof(u));
 415
 416         switch (cmd) {
 417         case VIAFB_GET_CHIP_INFO:
 418                 if (copy_to_user(argp, viaparinfo->chip_info,
 419                                 sizeof(struct chip_information)))
 420                         return -EFAULT;
 421                 break;
 422         case VIAFB_GET_INFO_SIZE:
 423                 return put_user((u32)sizeof(struct viafb_ioctl_info), argp);
 424         case VIAFB_GET_INFO:
 425                 return viafb_ioctl_get_viafb_info(arg);
 426         case VIAFB_HOTPLUG:
 427                 return put_user(viafb_ioctl_hotplug(info->var.xres,
 428                                               info->var.yres,
 429                                               info->var.bits_per_pixel), argp);
 430         case VIAFB_SET_HOTPLUG_FLAG:
 431                 if (copy_from_user(&gpu32, argp, sizeof(gpu32)))
 432                         return -EFAULT;
 433                 viafb_hotplug = (gpu32) ? 1 : 0;
 434                 break;
 435         case VIAFB_GET_RESOLUTION:
 436                 u.viamode.xres = (u32) viafb_hotplug_Xres;
 437                 u.viamode.yres = (u32) viafb_hotplug_Yres;
 438                 u.viamode.refresh = (u32) viafb_hotplug_refresh;
 439                 u.viamode.bpp = (u32) viafb_hotplug_bpp;
 440                 if (viafb_SAMM_ON == 1) {
 441                         u.viamode.xres_sec = viafb_second_xres;
 442                         u.viamode.yres_sec = viafb_second_yres;
 443                         u.viamode.virtual_xres_sec = viafb_dual_fb ? viafbinfo1->var.xres_virtual : viafbinfo->var.xres_virtual;
 444                         u.viamode.virtual_yres_sec = viafb_dual_fb ? viafbinfo1->var.yres_virtual : viafbinfo->var.yres_virtual;
 445                         u.viamode.refresh_sec = viafb_refresh1;
 446                         u.viamode.bpp_sec = viafb_bpp1;
 447                 } else {
 448                         u.viamode.xres_sec = 0;
 449                         u.viamode.yres_sec = 0;
 450                         u.viamode.virtual_xres_sec = 0;
 451                         u.viamode.virtual_yres_sec = 0;
 452                         u.viamode.refresh_sec = 0;
 453                         u.viamode.bpp_sec = 0;
 454                 }
 455                 if (copy_to_user(argp, &u.viamode, sizeof(u.viamode)))
 456                         return -EFAULT;
 457                 break;
 458         case VIAFB_GET_SAMM_INFO:
 459                 u.viasamm.samm_status = viafb_SAMM_ON;
 460
 461                 if (viafb_SAMM_ON == 1) {
 462                         if (viafb_dual_fb) {
 463                                 u.viasamm.size_prim = viaparinfo->fbmem_free;
 464                                 u.viasamm.size_sec = viaparinfo1->fbmem_free;
 465                         } else {
 466                                 if (viafb_second_size) {
 467                                         u.viasamm.size_prim =
 468                                             viaparinfo->fbmem_free -
 469                                             viafb_second_size * 1024 * 1024;
 470                                         u.viasamm.size_sec =
 471                                             viafb_second_size * 1024 * 1024;
 472                                 } else {
 473                                         u.viasamm.size_prim =
 474                                             viaparinfo->fbmem_free >> 1;
 475                                         u.viasamm.size_sec =
 476                                             (viaparinfo->fbmem_free >> 1);
 477                                 }
 478                         }
 479                         u.viasamm.mem_base = viaparinfo->fbmem;
 480                         u.viasamm.offset_sec = viafb_second_offset;
 481                 } else {
 482                         u.viasamm.size_prim =
 483                             viaparinfo->memsize - viaparinfo->fbmem_used;
 484                         u.viasamm.size_sec = 0;
 485                         u.viasamm.mem_base = viaparinfo->fbmem;
 486                         u.viasamm.offset_sec = 0;
 487                 }
 488
 489                 if (copy_to_user(argp, &u.viasamm, sizeof(u.viasamm)))
 490                         return -EFAULT;
 491
 492                 break;
 493         case VIAFB_TURN_ON_OUTPUT_DEVICE:
 494                 if (copy_from_user(&gpu32, argp, sizeof(gpu32)))
 495                         return -EFAULT;
 496                 if (gpu32 & CRT_Device)
 497                         via_set_state(VIA_CRT, VIA_STATE_ON);
 498                 if (gpu32 & DVI_Device)
 499                         viafb_dvi_enable();
 500                 if (gpu32 & LCD_Device)
 501                         viafb_lcd_enable();
 502                 break;
 503         case VIAFB_TURN_OFF_OUTPUT_DEVICE:
 504                 if (copy_from_user(&gpu32, argp, sizeof(gpu32)))
 505                         return -EFAULT;
 506                 if (gpu32 & CRT_Device)
 507                         via_set_state(VIA_CRT, VIA_STATE_OFF);
 508                 if (gpu32 & DVI_Device)
 509                         viafb_dvi_disable();
 510                 if (gpu32 & LCD_Device)
 511                         viafb_lcd_disable();
 512                 break;
 513         case VIAFB_GET_DEVICE:
 514                 u.active_dev.crt = viafb_CRT_ON;
 515                 u.active_dev.dvi = viafb_DVI_ON;
 516                 u.active_dev.lcd = viafb_LCD_ON;
 517                 u.active_dev.samm = viafb_SAMM_ON;
 518                 u.active_dev.primary_dev = viafb_primary_dev;
 519
 520                 u.active_dev.lcd_dsp_cent = viafb_lcd_dsp_method;
 521                 u.active_dev.lcd_panel_id = viafb_lcd_panel_id;
 522                 u.active_dev.lcd_mode = viafb_lcd_mode;
 523
 524                 u.active_dev.xres = viafb_hotplug_Xres;
 525                 u.active_dev.yres = viafb_hotplug_Yres;
 526
 527                 u.active_dev.xres1 = viafb_second_xres;
 528                 u.active_dev.yres1 = viafb_second_yres;
 529
 530                 u.active_dev.bpp = viafb_bpp;
 531                 u.active_dev.bpp1 = viafb_bpp1;
 532                 u.active_dev.refresh = viafb_refresh;
 533                 u.active_dev.refresh1 = viafb_refresh1;
 534
 535                 u.active_dev.epia_dvi = viafb_platform_epia_dvi;
 536                 u.active_dev.lcd_dual_edge = viafb_device_lcd_dualedge;
 537                 u.active_dev.bus_width = viafb_bus_width;
 538
 539                 if (copy_to_user(argp, &u.active_dev, sizeof(u.active_dev)))
 540                         return -EFAULT;
 541                 break;
 542
 543         case VIAFB_GET_DRIVER_VERSION:
 544                 u.driver_version.iMajorNum = VERSION_MAJOR;
 545                 u.driver_version.iKernelNum = VERSION_KERNEL;
 546                 u.driver_version.iOSNum = VERSION_OS;
 547                 u.driver_version.iMinorNum = VERSION_MINOR;
 548
 549                 if (copy_to_user(argp, &u.driver_version,
 550                         sizeof(u.driver_version)))
 551                         return -EFAULT;
 552
 553                 break;
 554
 555         case VIAFB_GET_DEVICE_INFO:
 556
 557                 retrieve_device_setting(&u.viafb_setting);
 558
 559                 if (copy_to_user(argp, &u.viafb_setting,
 560                                  sizeof(u.viafb_setting)))
 561                         return -EFAULT;
 562
 563                 break;
 564
 565         case VIAFB_GET_DEVICE_SUPPORT:
 566                 viafb_get_device_support_state(&state_info);
 567                 if (put_user(state_info, argp))
 568                         return -EFAULT;
 569                 break;
 570
 571         case VIAFB_GET_DEVICE_CONNECT:
 572                 viafb_get_device_connect_state(&state_info);
 573                 if (put_user(state_info, argp))
 574                         return -EFAULT;
 575                 break;
 576
 577         case VIAFB_GET_PANEL_SUPPORT_EXPAND:
 578                 state_info =
 579                     viafb_lcd_get_support_expand_state(info->var.xres,
 580                                                  info->var.yres);
 581                 if (put_user(state_info, argp))
 582                         return -EFAULT;
 583                 break;
 584
 585         case VIAFB_GET_DRIVER_NAME:
 586                 if (copy_to_user(argp, driver_name, sizeof(driver_name)))
 587                         return -EFAULT;
 588                 break;
 589
 590         case VIAFB_SET_GAMMA_LUT:
 591                 viafb_gamma_table = memdup_user(argp, 256 * sizeof(u32));
 592                 if (IS_ERR(viafb_gamma_table))
 593                         return PTR_ERR(viafb_gamma_table);
 594                 viafb_set_gamma_table(viafb_bpp, viafb_gamma_table);
 595                 kfree(viafb_gamma_table);
 596                 break;
 597
 598         case VIAFB_GET_GAMMA_LUT:
 599                 viafb_gamma_table = kmalloc_array(256, sizeof(u32),
 600                                                   GFP_KERNEL);
 601                 if (!viafb_gamma_table)
 602                         return -ENOMEM;
 603                 viafb_get_gamma_table(viafb_gamma_table);
 604                 if (copy_to_user(argp, viafb_gamma_table,
 605                         256 * sizeof(u32))) {
 606                         kfree(viafb_gamma_table);
 607                         return -EFAULT;
 608                 }
 609                 kfree(viafb_gamma_table);
 610                 break;
 611
 612         case VIAFB_GET_GAMMA_SUPPORT_STATE:
 613                 viafb_get_gamma_support_state(viafb_bpp, &state_info);
 614                 if (put_user(state_info, argp))
 615                         return -EFAULT;
 616                 break;
 617         case VIAFB_SYNC_SURFACE:
 618                 DEBUG_MSG(KERN_INFO "lobo VIAFB_SYNC_SURFACE\n");
 619                 break;
 620         case VIAFB_GET_DRIVER_CAPS:
 621                 break;
 622
 623         case VIAFB_GET_PANEL_MAX_SIZE:
 624                 if (copy_from_user(&u.panel_pos_size_para, argp,
 625                                    sizeof(u.panel_pos_size_para)))
 626                         return -EFAULT;
 627                 u.panel_pos_size_para.x = u.panel_pos_size_para.y = 0;
 628                 if (copy_to_user(argp, &u.panel_pos_size_para,
 629                      sizeof(u.panel_pos_size_para)))
 630                         return -EFAULT;
 631                 break;
 632         case VIAFB_GET_PANEL_MAX_POSITION:
 633                 if (copy_from_user(&u.panel_pos_size_para, argp,
 634                                    sizeof(u.panel_pos_size_para)))
 635                         return -EFAULT;
 636                 u.panel_pos_size_para.x = u.panel_pos_size_para.y = 0;
 637                 if (copy_to_user(argp, &u.panel_pos_size_para,
 638                                  sizeof(u.panel_pos_size_para)))
 639                         return -EFAULT;
 640                 break;
 641
 642         case VIAFB_GET_PANEL_POSITION:
 643                 if (copy_from_user(&u.panel_pos_size_para, argp,
 644                                    sizeof(u.panel_pos_size_para)))
 645                         return -EFAULT;
 646                 u.panel_pos_size_para.x = u.panel_pos_size_para.y = 0;
 647                 if (copy_to_user(argp, &u.panel_pos_size_para,
 648                                  sizeof(u.panel_pos_size_para)))
 649                         return -EFAULT;
 650                 break;
 651         case VIAFB_GET_PANEL_SIZE:
 652                 if (copy_from_user(&u.panel_pos_size_para, argp,
 653                                    sizeof(u.panel_pos_size_para)))
 654                         return -EFAULT;
 655                 u.panel_pos_size_para.x = u.panel_pos_size_para.y = 0;
 656                 if (copy_to_user(argp, &u.panel_pos_size_para,
 657                                  sizeof(u.panel_pos_size_para)))
 658                         return -EFAULT;
 659                 break;
 660
 661         case VIAFB_SET_PANEL_POSITION:
 662                 if (copy_from_user(&u.panel_pos_size_para, argp,
 663                                    sizeof(u.panel_pos_size_para)))
 664                         return -EFAULT;
 665                 break;
 666         case VIAFB_SET_PANEL_SIZE:
 667                 if (copy_from_user(&u.panel_pos_size_para, argp,
 668                                    sizeof(u.panel_pos_size_para)))
 669                         return -EFAULT;
 670                 break;
 671
 672         default:
 673                 return -EINVAL;
 674         }
 675
 676         return 0;
 677 }
 678
 679 static void viafb_fillrect(struct fb_info *info,
 680         const struct fb_fillrect *rect)
 681 {
 682         struct viafb_par *viapar = info->par;
 683         struct viafb_shared *shared = viapar->shared;
 684         u32 fg_color;
 685         u8 rop;
 686
 687         if (info->flags & FBINFO_HWACCEL_DISABLED || !shared->hw_bitblt) {
 688                 cfb_fillrect(info, rect);
 689                 return;
 690         }
 691
 692         if (!rect->width || !rect->height)
 693                 return;
 694
 695         if (info->fix.visual == FB_VISUAL_TRUECOLOR)
 696                 fg_color = ((u32 *)info->pseudo_palette)[rect->color];
 697         else
 698                 fg_color = rect->color;
 699
 700         if (rect->rop == ROP_XOR)
 701                 rop = 0x5A;
 702         else
 703                 rop = 0xF0;
 704
 705         DEBUG_MSG(KERN_DEBUG "viafb 2D engine: fillrect\n");
 706         if (shared->hw_bitblt(shared->vdev->engine_mmio, VIA_BITBLT_FILL,
 707                 rect->width, rect->height, info->var.bits_per_pixel,
 708                 viapar->vram_addr, info->fix.line_length, rect->dx, rect->dy,
 709                 NULL, 0, 0, 0, 0, fg_color, 0, rop))
 710                 cfb_fillrect(info, rect);
 711 }
 712
 713 static void viafb_copyarea(struct fb_info *info,
 714         const struct fb_copyarea *area)
 715 {
 716         struct viafb_par *viapar = info->par;
 717         struct viafb_shared *shared = viapar->shared;
 718
 719         if (info->flags & FBINFO_HWACCEL_DISABLED || !shared->hw_bitblt) {
 720                 cfb_copyarea(info, area);
 721                 return;
 722         }
 723
 724         if (!area->width || !area->height)
 725                 return;
 726
 727         DEBUG_MSG(KERN_DEBUG "viafb 2D engine: copyarea\n");
 728         if (shared->hw_bitblt(shared->vdev->engine_mmio, VIA_BITBLT_COLOR,
 729                 area->width, area->height, info->var.bits_per_pixel,
 730                 viapar->vram_addr, info->fix.line_length, area->dx, area->dy,
 731                 NULL, viapar->vram_addr, info->fix.line_length,
 732                 area->sx, area->sy, 0, 0, 0))
 733                 cfb_copyarea(info, area);
 734 }
 735
 736 static void viafb_imageblit(struct fb_info *info,
 737         const struct fb_image *image)
 738 {
 739         struct viafb_par *viapar = info->par;
 740         struct viafb_shared *shared = viapar->shared;
 741         u32 fg_color = 0, bg_color = 0;
 742         u8 op;
 743
 744         if (info->flags & FBINFO_HWACCEL_DISABLED || !shared->hw_bitblt ||
 745                 (image->depth != 1 && image->depth != viapar->depth)) {
 746                 cfb_imageblit(info, image);
 747                 return;
 748         }
 749
 750         if (image->depth == 1) {
 751                 op = VIA_BITBLT_MONO;
 752                 if (info->fix.visual == FB_VISUAL_TRUECOLOR) {
 753                         fg_color =
 754                                 ((u32 *)info->pseudo_palette)[image->fg_color];
 755                         bg_color =
 756                                 ((u32 *)info->pseudo_palette)[image->bg_color];
 757                 } else {
 758                         fg_color = image->fg_color;
 759                         bg_color = image->bg_color;
 760                 }
 761         } else
 762                 op = VIA_BITBLT_COLOR;
 763
 764         DEBUG_MSG(KERN_DEBUG "viafb 2D engine: imageblit\n");
 765         if (shared->hw_bitblt(shared->vdev->engine_mmio, op,
 766                 image->width, image->height, info->var.bits_per_pixel,
 767                 viapar->vram_addr, info->fix.line_length, image->dx, image->dy,
 768                 (u32 *)image->data, 0, 0, 0, 0, fg_color, bg_color, 0))
 769                 cfb_imageblit(info, image);
 770 }
 771
 772 static int viafb_cursor(struct fb_info *info, struct fb_cursor *cursor)
 773 {
 774         struct viafb_par *viapar = info->par;
 775         void __iomem *engine = viapar->shared->vdev->engine_mmio;
 776         u32 temp, xx, yy, bg_color = 0, fg_color = 0,
 777                 chip_name = viapar->shared->chip_info.gfx_chip_name;
 778         int i, j = 0, cur_size = 64;
 779
 780         if (info->flags & FBINFO_HWACCEL_DISABLED || info != viafbinfo)
 781                 return -ENODEV;
 782
 783         /* LCD ouput does not support hw cursors (at least on VN896) */
 784         if ((chip_name == UNICHROME_CLE266 && viapar->iga_path == IGA2) ||
 785                 viafb_LCD_ON)
 786                 return -ENODEV;
 787
 788         viafb_show_hw_cursor(info, HW_Cursor_OFF);
 789
 790         if (cursor->set & FB_CUR_SETHOT) {
 791                 temp = (cursor->hot.x << 16) + cursor->hot.y;
 792                 writel(temp, engine + VIA_REG_CURSOR_ORG);
 793         }
 794
 795         if (cursor->set & FB_CUR_SETPOS) {
 796                 yy = cursor->image.dy - info->var.yoffset;
 797                 xx = cursor->image.dx - info->var.xoffset;
 798                 temp = yy & 0xFFFF;
 799                 temp |= (xx << 16);
 800                 writel(temp, engine + VIA_REG_CURSOR_POS);
 801         }
 802
 803         if (cursor->image.width <= 32 && cursor->image.height <= 32)
 804                 cur_size = 32;
 805         else if (cursor->image.width <= 64 && cursor->image.height <= 64)
 806                 cur_size = 64;
 807         else {
 808                 printk(KERN_WARNING "viafb_cursor: The cursor is too large "
 809                         "%dx%d", cursor->image.width, cursor->image.height);
 810                 return -ENXIO;
 811         }
 812
 813         if (cursor->set & FB_CUR_SETSIZE) {
 814                 temp = readl(engine + VIA_REG_CURSOR_MODE);
 815                 if (cur_size == 32)
 816                         temp |= 0x2;
 817                 else
 818                         temp &= ~0x2;
 819
 820                 writel(temp, engine + VIA_REG_CURSOR_MODE);
 821         }
 822
 823         if (cursor->set & FB_CUR_SETCMAP) {
 824                 fg_color = cursor->image.fg_color;
 825                 bg_color = cursor->image.bg_color;
 826                 if (chip_name == UNICHROME_CX700 ||
 827                         chip_name == UNICHROME_VX800 ||
 828                         chip_name == UNICHROME_VX855 ||
 829                         chip_name == UNICHROME_VX900) {
 830                         fg_color =
 831                                 ((info->cmap.red[fg_color] & 0xFFC0) << 14) |
 832                                 ((info->cmap.green[fg_color] & 0xFFC0) << 4) |
 833                                 ((info->cmap.blue[fg_color] & 0xFFC0) >> 6);
 834                         bg_color =
 835                                 ((info->cmap.red[bg_color] & 0xFFC0) << 14) |
 836                                 ((info->cmap.green[bg_color] & 0xFFC0) << 4) |
 837                                 ((info->cmap.blue[bg_color] & 0xFFC0) >> 6);
 838                 } else {
 839                         fg_color =
 840                                 ((info->cmap.red[fg_color] & 0xFF00) << 8) |
 841                                 (info->cmap.green[fg_color] & 0xFF00) |
 842                                 ((info->cmap.blue[fg_color] & 0xFF00) >> 8);
 843                         bg_color =
 844                                 ((info->cmap.red[bg_color] & 0xFF00) << 8) |
 845                                 (info->cmap.green[bg_color] & 0xFF00) |
 846                                 ((info->cmap.blue[bg_color] & 0xFF00) >> 8);
 847                 }
 848
 849                 writel(bg_color, engine + VIA_REG_CURSOR_BG);
 850                 writel(fg_color, engine + VIA_REG_CURSOR_FG);
 851         }
 852
 853         if (cursor->set & FB_CUR_SETSHAPE) {
 854                 struct {
 855                         u8 data[CURSOR_SIZE];
 856                         u32 bak[CURSOR_SIZE / 4];
 857                 } *cr_data = kzalloc(sizeof(*cr_data), GFP_ATOMIC);
 858                 int size = ((cursor->image.width + 7) >> 3) *
 859                         cursor->image.height;
 860
 861                 if (!cr_data)
 862                         return -ENOMEM;
 863
 864                 if (cur_size == 32) {
 865                         for (i = 0; i < (CURSOR_SIZE / 4); i++) {
 866                                 cr_data->bak[i] = 0x0;
 867                                 cr_data->bak[i + 1] = 0xFFFFFFFF;
 868                                 i += 1;
 869                         }
 870                 } else {
 871                         for (i = 0; i < (CURSOR_SIZE / 4); i++) {
 872                                 cr_data->bak[i] = 0x0;
 873                                 cr_data->bak[i + 1] = 0x0;
 874                                 cr_data->bak[i + 2] = 0xFFFFFFFF;
 875                                 cr_data->bak[i + 3] = 0xFFFFFFFF;
 876                                 i += 3;
 877                         }
 878                 }
 879
 880                 switch (cursor->rop) {
 881                 case ROP_XOR:
 882                         for (i = 0; i < size; i++)
 883                                 cr_data->data[i] = cursor->mask[i];
 884                         break;
 885                 case ROP_COPY:
 886
 887                         for (i = 0; i < size; i++)
 888                                 cr_data->data[i] = cursor->mask[i];
 889                         break;
 890                 default:
 891                         break;
 892                 }
 893
 894                 if (cur_size == 32) {
 895                         for (i = 0; i < size; i++) {
 896                                 cr_data->bak[j] = (u32) cr_data->data[i];
 897                                 cr_data->bak[j + 1] = ~cr_data->bak[j];
 898                                 j += 2;
 899                         }
 900                 } else {
 901                         for (i = 0; i < size; i++) {
 902                                 cr_data->bak[j] = (u32) cr_data->data[i];
 903                                 cr_data->bak[j + 1] = 0x0;
 904                                 cr_data->bak[j + 2] = ~cr_data->bak[j];
 905                                 cr_data->bak[j + 3] = ~cr_data->bak[j + 1];
 906                                 j += 4;
 907                         }
 908                 }
 909
 910                 memcpy_toio(viafbinfo->screen_base + viapar->shared->
 911                         cursor_vram_addr, cr_data->bak, CURSOR_SIZE);
 912                 kfree(cr_data);
 913         }
 914
 915         if (cursor->enable)
 916                 viafb_show_hw_cursor(info, HW_Cursor_ON);
 917
 918         return 0;
 919 }
 920
 921 static int viafb_sync(struct fb_info *info)
 922 {
 923         if (!(info->flags & FBINFO_HWACCEL_DISABLED))
 924                 viafb_wait_engine_idle(info);
 925         return 0;
 926 }
 927
 928 static int get_primary_device(void)
 929 {
 930         int primary_device = 0;
 931         /* Rule: device on iga1 path are the primary device. */
 932         if (viafb_SAMM_ON) {
 933                 if (viafb_CRT_ON) {
 934                         if (viaparinfo->shared->iga1_devices & VIA_CRT) {
 935                                 DEBUG_MSG(KERN_INFO "CRT IGA Path:%d\n", IGA1);
 936                                 primary_device = CRT_Device;
 937                         }
 938                 }
 939                 if (viafb_DVI_ON) {
 940                         if (viaparinfo->tmds_setting_info->iga_path == IGA1) {
 941                                 DEBUG_MSG(KERN_INFO "DVI IGA Path:%d\n",
 942                                         viaparinfo->
 943                                         tmds_setting_info->iga_path);
 944                                 primary_device = DVI_Device;
 945                         }
 946                 }
 947                 if (viafb_LCD_ON) {
 948                         if (viaparinfo->lvds_setting_info->iga_path == IGA1) {
 949                                 DEBUG_MSG(KERN_INFO "LCD IGA Path:%d\n",
 950                                         viaparinfo->
 951                                         lvds_setting_info->iga_path);
 952                                 primary_device = LCD_Device;
 953                         }
 954                 }
 955                 if (viafb_LCD2_ON) {
 956                         if (viaparinfo->lvds_setting_info2->iga_path == IGA1) {
 957                                 DEBUG_MSG(KERN_INFO "LCD2 IGA Path:%d\n",
 958                                         viaparinfo->
 959                                         lvds_setting_info2->iga_path);
 960                                 primary_device = LCD2_Device;
 961                         }
 962                 }
 963         }
 964         return primary_device;
 965 }
 966
 967 static void retrieve_device_setting(struct viafb_ioctl_setting
 968         *setting_info)
 969 {
 970
 971         /* get device status */
 972         if (viafb_CRT_ON == 1)
 973                 setting_info->device_status = CRT_Device;
 974         if (viafb_DVI_ON == 1)
 975                 setting_info->device_status |= DVI_Device;
 976         if (viafb_LCD_ON == 1)
 977                 setting_info->device_status |= LCD_Device;
 978         if (viafb_LCD2_ON == 1)
 979                 setting_info->device_status |= LCD2_Device;
 980
 981         setting_info->samm_status = viafb_SAMM_ON;
 982         setting_info->primary_device = get_primary_device();
 983
 984         setting_info->first_dev_bpp = viafb_bpp;
 985         setting_info->second_dev_bpp = viafb_bpp1;
 986
 987         setting_info->first_dev_refresh = viafb_refresh;
 988         setting_info->second_dev_refresh = viafb_refresh1;
 989
 990         setting_info->first_dev_hor_res = viafb_hotplug_Xres;
 991         setting_info->first_dev_ver_res = viafb_hotplug_Yres;
 992         setting_info->second_dev_hor_res = viafb_second_xres;
 993         setting_info->second_dev_ver_res = viafb_second_yres;
 994
 995         /* Get lcd attributes */
 996         setting_info->lcd_attributes.display_center = viafb_lcd_dsp_method;
 997         setting_info->lcd_attributes.panel_id = viafb_lcd_panel_id;
 998         setting_info->lcd_attributes.lcd_mode = viafb_lcd_mode;
 999 }
1000
1001 static int __init parse_active_dev(void)
1002 {
1003         viafb_CRT_ON = STATE_OFF;
1004         viafb_DVI_ON = STATE_OFF;
1005         viafb_LCD_ON = STATE_OFF;
1006         viafb_LCD2_ON = STATE_OFF;
1007         /* 1. Modify the active status of devices. */
1008         /* 2. Keep the order of devices, so we can set corresponding
1009            IGA path to devices in SAMM case. */
1010         /*    Note: The previous of active_dev is primary device,
1011            and the following is secondary device. */
1012         if (!viafb_active_dev) {
1013                 if (machine_is_olpc()) { /* LCD only */
1014                         viafb_LCD_ON = STATE_ON;
1015                         viafb_SAMM_ON = STATE_OFF;
1016                 } else {
1017                         viafb_CRT_ON = STATE_ON;
1018                         viafb_SAMM_ON = STATE_OFF;
1019                 }
1020         } else if (!strcmp(viafb_active_dev, "CRT+DVI")) {
1021                 /* CRT+DVI */
1022                 viafb_CRT_ON = STATE_ON;
1023                 viafb_DVI_ON = STATE_ON;
1024                 viafb_primary_dev = CRT_Device;
1025         } else if (!strcmp(viafb_active_dev, "DVI+CRT")) {
1026                 /* DVI+CRT */
1027                 viafb_CRT_ON = STATE_ON;
1028                 viafb_DVI_ON = STATE_ON;
1029                 viafb_primary_dev = DVI_Device;
1030         } else if (!strcmp(viafb_active_dev, "CRT+LCD")) {
1031                 /* CRT+LCD */
1032                 viafb_CRT_ON = STATE_ON;
1033                 viafb_LCD_ON = STATE_ON;
1034                 viafb_primary_dev = CRT_Device;
1035         } else if (!strcmp(viafb_active_dev, "LCD+CRT")) {
1036                 /* LCD+CRT */
1037                 viafb_CRT_ON = STATE_ON;
1038                 viafb_LCD_ON = STATE_ON;
1039                 viafb_primary_dev = LCD_Device;
1040         } else if (!strcmp(viafb_active_dev, "DVI+LCD")) {
1041                 /* DVI+LCD */
1042                 viafb_DVI_ON = STATE_ON;
1043                 viafb_LCD_ON = STATE_ON;
1044                 viafb_primary_dev = DVI_Device;
1045         } else if (!strcmp(viafb_active_dev, "LCD+DVI")) {
1046                 /* LCD+DVI */
1047                 viafb_DVI_ON = STATE_ON;
1048                 viafb_LCD_ON = STATE_ON;
1049                 viafb_primary_dev = LCD_Device;
1050         } else if (!strcmp(viafb_active_dev, "LCD+LCD2")) {
1051                 viafb_LCD_ON = STATE_ON;
1052                 viafb_LCD2_ON = STATE_ON;
1053                 viafb_primary_dev = LCD_Device;
1054         } else if (!strcmp(viafb_active_dev, "LCD2+LCD")) {
1055                 viafb_LCD_ON = STATE_ON;
1056                 viafb_LCD2_ON = STATE_ON;
1057                 viafb_primary_dev = LCD2_Device;
1058         } else if (!strcmp(viafb_active_dev, "CRT")) {
1059                 /* CRT only */
1060                 viafb_CRT_ON = STATE_ON;
1061                 viafb_SAMM_ON = STATE_OFF;
1062         } else if (!strcmp(viafb_active_dev, "DVI")) {
1063                 /* DVI only */
1064                 viafb_DVI_ON = STATE_ON;
1065                 viafb_SAMM_ON = STATE_OFF;
1066         } else if (!strcmp(viafb_active_dev, "LCD")) {
1067                 /* LCD only */
1068                 viafb_LCD_ON = STATE_ON;
1069                 viafb_SAMM_ON = STATE_OFF;
1070         } else
1071                 return -EINVAL;
1072
1073         return 0;
1074 }
1075
1076 static int parse_port(char *opt_str, int *output_interface)
1077 {
1078         if (!strncmp(opt_str, "DVP0", 4))
1079                 *output_interface = INTERFACE_DVP0;
1080         else if (!strncmp(opt_str, "DVP1", 4))
1081                 *output_interface = INTERFACE_DVP1;
1082         else if (!strncmp(opt_str, "DFP_HIGHLOW", 11))
1083                 *output_interface = INTERFACE_DFP;
1084         else if (!strncmp(opt_str, "DFP_HIGH", 8))
1085                 *output_interface = INTERFACE_DFP_HIGH;
1086         else if (!strncmp(opt_str, "DFP_LOW", 7))
1087                 *output_interface = INTERFACE_DFP_LOW;
1088         else
1089                 *output_interface = INTERFACE_NONE;
1090         return 0;
1091 }
1092
1093 static void parse_lcd_port(void)
1094 {
1095         parse_port(viafb_lcd_port, &viaparinfo->chip_info->lvds_chip_info.
1096                 output_interface);
1097         /*Initialize to avoid unexpected behavior */
1098         viaparinfo->chip_info->lvds_chip_info2.output_interface =
1099         INTERFACE_NONE;
1100
1101         DEBUG_MSG(KERN_INFO "parse_lcd_port: viafb_lcd_port:%s,interface:%d\n",
1102                   viafb_lcd_port, viaparinfo->chip_info->lvds_chip_info.
1103                   output_interface);
1104 }
1105
1106 static void parse_dvi_port(void)
1107 {
1108         parse_port(viafb_dvi_port, &viaparinfo->chip_info->tmds_chip_info.
1109                 output_interface);
1110
1111         DEBUG_MSG(KERN_INFO "parse_dvi_port: viafb_dvi_port:%s,interface:%d\n",
1112                   viafb_dvi_port, viaparinfo->chip_info->tmds_chip_info.
1113                   output_interface);
1114 }
1115
1116 #ifdef CONFIG_FB_VIA_DIRECT_PROCFS
1117
1118 /*
1119  * The proc filesystem read/write function, a simple proc implement to
1120  * get/set the value of DPA  DVP0,   DVP0DataDriving,  DVP0ClockDriving, DVP1,
1121  * DVP1Driving, DFPHigh, DFPLow CR96,   SR2A[5], SR1B[1], SR2A[4], SR1E[2],
1122  * CR9B,    SR65,    CR97,    CR99
1123  */
1124 static int viafb_dvp0_proc_show(struct seq_file *m, void *v)
1125 {
1126         u8 dvp0_data_dri = 0, dvp0_clk_dri = 0, dvp0 = 0;
1127         dvp0_data_dri =
1128             (viafb_read_reg(VIASR, SR2A) & BIT5) >> 4 |
1129             (viafb_read_reg(VIASR, SR1B) & BIT1) >> 1;
1130         dvp0_clk_dri =
1131             (viafb_read_reg(VIASR, SR2A) & BIT4) >> 3 |
1132             (viafb_read_reg(VIASR, SR1E) & BIT2) >> 2;
1133         dvp0 = viafb_read_reg(VIACR, CR96) & 0x0f;
1134         seq_printf(m, "%x %x %x\n", dvp0, dvp0_data_dri, dvp0_clk_dri);
1135         return 0;
1136 }
1137
1138 static int viafb_dvp0_proc_open(struct inode *inode, struct file *file)
1139 {
1140         return single_open(file, viafb_dvp0_proc_show, NULL);
1141 }
1142
1143 static ssize_t viafb_dvp0_proc_write(struct file *file,
1144         const char __user *buffer, size_t count, loff_t *pos)
1145 {
1146         char buf[20], *value, *pbuf;
1147         u8 reg_val = 0;
1148         unsigned long length, i;
1149         if (count < 1)
1150                 return -EINVAL;
1151         length = count > 20 ? 20 : count;
1152         if (copy_from_user(&buf[0], buffer, length))
1153                 return -EFAULT;
1154         buf[length - 1] = '\0'; /*Ensure end string */
1155         pbuf = &buf[0];
1156         for (i = 0; i < 3; i++) {
1157                 value = strsep(&pbuf, " ");
1158                 if (value != NULL) {
1159                         if (kstrtou8(value, 0, &reg_val) < 0)
1160                                 return -EINVAL;
1161                         DEBUG_MSG(KERN_INFO "DVP0:reg_val[%l]=:%x\n", i,
1162                                   reg_val);
1163                         switch (i) {
1164                         case 0:
1165                                 viafb_write_reg_mask(CR96, VIACR,
1166                                         reg_val, 0x0f);
1167                                 break;
1168                         case 1:
1169                                 viafb_write_reg_mask(SR2A, VIASR,
1170                                         reg_val << 4, BIT5);
1171                                 viafb_write_reg_mask(SR1B, VIASR,
1172                                         reg_val << 1, BIT1);
1173                                 break;
1174                         case 2:
1175                                 viafb_write_reg_mask(SR2A, VIASR,
1176                                         reg_val << 3, BIT4);
1177                                 viafb_write_reg_mask(SR1E, VIASR,
1178                                         reg_val << 2, BIT2);
1179                                 break;
1180                         default:
1181                                 break;
1182                         }
1183                 } else {
1184                         break;
1185                 }
1186         }
1187         return count;
1188 }
1189
1190 static const struct file_operations viafb_dvp0_proc_fops = {
1191         .owner          = THIS_MODULE,
1192         .open           = viafb_dvp0_proc_open,
1193         .read           = seq_read,
1194         .llseek         = seq_lseek,
1195         .release        = single_release,
1196         .write          = viafb_dvp0_proc_write,
1197 };
1198
1199 static int viafb_dvp1_proc_show(struct seq_file *m, void *v)
1200 {
1201         u8 dvp1 = 0, dvp1_data_dri = 0, dvp1_clk_dri = 0;
1202         dvp1 = viafb_read_reg(VIACR, CR9B) & 0x0f;
1203         dvp1_data_dri = (viafb_read_reg(VIASR, SR65) & 0x0c) >> 2;
1204         dvp1_clk_dri = viafb_read_reg(VIASR, SR65) & 0x03;
1205         seq_printf(m, "%x %x %x\n", dvp1, dvp1_data_dri, dvp1_clk_dri);
1206         return 0;
1207 }
1208
1209 static int viafb_dvp1_proc_open(struct inode *inode, struct file *file)
1210 {
1211         return single_open(file, viafb_dvp1_proc_show, NULL);
1212 }
1213
1214 static ssize_t viafb_dvp1_proc_write(struct file *file,
1215         const char __user *buffer, size_t count, loff_t *pos)
1216 {
1217         char buf[20], *value, *pbuf;
1218         u8 reg_val = 0;
1219         unsigned long length, i;
1220         if (count < 1)
1221                 return -EINVAL;
1222         length = count > 20 ? 20 : count;
1223         if (copy_from_user(&buf[0], buffer, length))
1224                 return -EFAULT;
1225         buf[length - 1] = '\0'; /*Ensure end string */
1226         pbuf = &buf[0];
1227         for (i = 0; i < 3; i++) {
1228                 value = strsep(&pbuf, " ");
1229                 if (value != NULL) {
1230                         if (kstrtou8(value, 0, &reg_val) < 0)
1231                                 return -EINVAL;
1232                         switch (i) {
1233                         case 0:
1234                                 viafb_write_reg_mask(CR9B, VIACR,
1235                                         reg_val, 0x0f);
1236                                 break;
1237                         case 1:
1238                                 viafb_write_reg_mask(SR65, VIASR,
1239                                         reg_val << 2, 0x0c);
1240                                 break;
1241                         case 2:
1242                                 viafb_write_reg_mask(SR65, VIASR,
1243                                         reg_val, 0x03);
1244                                 break;
1245                         default:
1246                                 break;
1247                         }
1248                 } else {
1249                         break;
1250                 }
1251         }
1252         return count;
1253 }
1254
1255 static const struct file_operations viafb_dvp1_proc_fops = {
1256         .owner          = THIS_MODULE,
1257         .open           = viafb_dvp1_proc_open,
1258         .read           = seq_read,
1259         .llseek         = seq_lseek,
1260         .release        = single_release,
1261         .write          = viafb_dvp1_proc_write,
1262 };
1263
1264 static int viafb_dfph_proc_show(struct seq_file *m, void *v)
1265 {
1266         u8 dfp_high = 0;
1267         dfp_high = viafb_read_reg(VIACR, CR97) & 0x0f;
1268         seq_printf(m, "%x\n", dfp_high);
1269         return 0;
1270 }
1271
1272 static int viafb_dfph_proc_open(struct inode *inode, struct file *file)
1273 {
1274         return single_open(file, viafb_dfph_proc_show, NULL);
1275 }
1276
1277 static ssize_t viafb_dfph_proc_write(struct file *file,
1278         const char __user *buffer, size_t count, loff_t *pos)
1279 {
1280         int err;
1281         u8 reg_val;
1282         err = kstrtou8_from_user(buffer, count, 0, &reg_val);
1283         if (err)
1284                 return err;
1285
1286         viafb_write_reg_mask(CR97, VIACR, reg_val, 0x0f);
1287         return count;
1288 }
1289
1290 static const struct file_operations viafb_dfph_proc_fops = {
1291         .owner          = THIS_MODULE,
1292         .open           = viafb_dfph_proc_open,
1293         .read           = seq_read,
1294         .llseek         = seq_lseek,
1295         .release        = single_release,
1296         .write          = viafb_dfph_proc_write,
1297 };
1298
1299 static int viafb_dfpl_proc_show(struct seq_file *m, void *v)
1300 {
1301         u8 dfp_low = 0;
1302         dfp_low = viafb_read_reg(VIACR, CR99) & 0x0f;
1303         seq_printf(m, "%x\n", dfp_low);
1304         return 0;
1305 }
1306
1307 static int viafb_dfpl_proc_open(struct inode *inode, struct file *file)
1308 {
1309         return single_open(file, viafb_dfpl_proc_show, NULL);
1310 }
1311
1312 static ssize_t viafb_dfpl_proc_write(struct file *file,
1313         const char __user *buffer, size_t count, loff_t *pos)
1314 {
1315         int err;
1316         u8 reg_val;
1317         err = kstrtou8_from_user(buffer, count, 0, &reg_val);
1318         if (err)
1319                 return err;
1320
1321         viafb_write_reg_mask(CR99, VIACR, reg_val, 0x0f);
1322         return count;
1323 }
1324
1325 static const struct file_operations viafb_dfpl_proc_fops = {
1326         .owner          = THIS_MODULE,
1327         .open           = viafb_dfpl_proc_open,
1328         .read           = seq_read,
1329         .llseek         = seq_lseek,
1330         .release        = single_release,
1331         .write          = viafb_dfpl_proc_write,
1332 };
1333
1334 static int viafb_vt1636_proc_show(struct seq_file *m, void *v)
1335 {
1336         u8 vt1636_08 = 0, vt1636_09 = 0;
1337         switch (viaparinfo->chip_info->lvds_chip_info.lvds_chip_name) {
1338         case VT1636_LVDS:
1339                 vt1636_08 =
1340                     viafb_gpio_i2c_read_lvds(viaparinfo->lvds_setting_info,
1341                     &viaparinfo->chip_info->lvds_chip_info, 0x08) & 0x0f;
1342                 vt1636_09 =
1343                     viafb_gpio_i2c_read_lvds(viaparinfo->lvds_setting_info,
1344                     &viaparinfo->chip_info->lvds_chip_info, 0x09) & 0x1f;
1345                 seq_printf(m, "%x %x\n", vt1636_08, vt1636_09);
1346                 break;
1347         default:
1348                 break;
1349         }
1350         switch (viaparinfo->chip_info->lvds_chip_info2.lvds_chip_name) {
1351         case VT1636_LVDS:
1352                 vt1636_08 =
1353                     viafb_gpio_i2c_read_lvds(viaparinfo->lvds_setting_info2,
1354                         &viaparinfo->chip_info->lvds_chip_info2, 0x08) & 0x0f;
1355                 vt1636_09 =
1356                     viafb_gpio_i2c_read_lvds(viaparinfo->lvds_setting_info2,
1357                         &viaparinfo->chip_info->lvds_chip_info2, 0x09) & 0x1f;
1358                 seq_printf(m, " %x %x\n", vt1636_08, vt1636_09);
1359                 break;
1360         default:
1361                 break;
1362         }
1363         return 0;
1364 }
1365
1366 static int viafb_vt1636_proc_open(struct inode *inode, struct file *file)
1367 {
1368         return single_open(file, viafb_vt1636_proc_show, NULL);
1369 }
1370
1371 static ssize_t viafb_vt1636_proc_write(struct file *file,
1372         const char __user *buffer, size_t count, loff_t *pos)
1373 {
1374         char buf[30], *value, *pbuf;
1375         struct IODATA reg_val;
1376         unsigned long length, i;
1377         if (count < 1)
1378                 return -EINVAL;
1379         length = count > 30 ? 30 : count;
1380         if (copy_from_user(&buf[0], buffer, length))
1381                 return -EFAULT;
1382         buf[length - 1] = '\0'; /*Ensure end string */
1383         pbuf = &buf[0];
1384         switch (viaparinfo->chip_info->lvds_chip_info.lvds_chip_name) {
1385         case VT1636_LVDS:
1386                 for (i = 0; i < 2; i++) {
1387                         value = strsep(&pbuf, " ");
1388                         if (value != NULL) {
1389                                 if (kstrtou8(value, 0, &reg_val.Data) < 0)
1390                                         return -EINVAL;
1391                                 switch (i) {
1392                                 case 0:
1393                                         reg_val.Index = 0x08;
1394                                         reg_val.Mask = 0x0f;
1395                                         viafb_gpio_i2c_write_mask_lvds
1396                                             (viaparinfo->lvds_setting_info,
1397                                             &viaparinfo->
1398                                             chip_info->lvds_chip_info,
1399                                              reg_val);
1400                                         break;
1401                                 case 1:
1402                                         reg_val.Index = 0x09;
1403                                         reg_val.Mask = 0x1f;
1404                                         viafb_gpio_i2c_write_mask_lvds
1405                                             (viaparinfo->lvds_setting_info,
1406                                             &viaparinfo->
1407                                             chip_info->lvds_chip_info,
1408                                              reg_val);
1409                                         break;
1410                                 default:
1411                                         break;
1412                                 }
1413                         } else {
1414                                 break;
1415                         }
1416                 }
1417                 break;
1418         default:
1419                 break;
1420         }
1421         switch (viaparinfo->chip_info->lvds_chip_info2.lvds_chip_name) {
1422         case VT1636_LVDS:
1423                 for (i = 0; i < 2; i++) {
1424                         value = strsep(&pbuf, " ");
1425                         if (value != NULL) {
1426                                 if (kstrtou8(value, 0, &reg_val.Data) < 0)
1427                                         return -EINVAL;
1428                                 switch (i) {
1429                                 case 0:
1430                                         reg_val.Index = 0x08;
1431                                         reg_val.Mask = 0x0f;
1432                                         viafb_gpio_i2c_write_mask_lvds
1433                                             (viaparinfo->lvds_setting_info2,
1434                                             &viaparinfo->
1435                                             chip_info->lvds_chip_info2,
1436                                              reg_val);
1437                                         break;
1438                                 case 1:
1439                                         reg_val.Index = 0x09;
1440                                         reg_val.Mask = 0x1f;
1441                                         viafb_gpio_i2c_write_mask_lvds
1442                                             (viaparinfo->lvds_setting_info2,
1443                                             &viaparinfo->
1444                                             chip_info->lvds_chip_info2,
1445                                              reg_val);
1446                                         break;
1447                                 default:
1448                                         break;
1449                                 }
1450                         } else {
1451                                 break;
1452                         }
1453                 }
1454                 break;
1455         default:
1456                 break;
1457         }
1458         return count;
1459 }
1460
1461 static const struct file_operations viafb_vt1636_proc_fops = {
1462         .owner          = THIS_MODULE,
1463         .open           = viafb_vt1636_proc_open,
1464         .read           = seq_read,
1465         .llseek         = seq_lseek,
1466         .release        = single_release,
1467         .write          = viafb_vt1636_proc_write,
1468 };
1469
1470 #endif /* CONFIG_FB_VIA_DIRECT_PROCFS */
1471
1472 static int __maybe_unused viafb_sup_odev_proc_show(struct seq_file *m, void *v)
1473 {
1474         via_odev_to_seq(m, supported_odev_map[
1475                 viaparinfo->shared->chip_info.gfx_chip_name]);
1476         return 0;
1477 }
1478
1479 static ssize_t odev_update(const char __user *buffer, size_t count, u32 *odev)
1480 {
1481         char buf[64], *ptr = buf;
1482         u32 devices;
1483         bool add, sub;
1484
1485         if (count < 1 || count > 63)
1486                 return -EINVAL;
1487         if (copy_from_user(&buf[0], buffer, count))
1488                 return -EFAULT;
1489         buf[count] = '\0';
1490         add = buf[0] == '+';
1491         sub = buf[0] == '-';
1492         if (add || sub)
1493                 ptr++;
1494         devices = via_parse_odev(ptr, &ptr);
1495         if (*ptr == '\n')
1496                 ptr++;
1497         if (*ptr != 0)
1498                 return -EINVAL;
1499         if (add)
1500                 *odev |= devices;
1501         else if (sub)
1502                 *odev &= ~devices;
1503         else
1504                 *odev = devices;
1505         return count;
1506 }
1507
1508 static int viafb_iga1_odev_proc_show(struct seq_file *m, void *v)
1509 {
1510         via_odev_to_seq(m, viaparinfo->shared->iga1_devices);
1511         return 0;
1512 }
1513
1514 static int viafb_iga1_odev_proc_open(struct inode *inode, struct file *file)
1515 {
1516         return single_open(file, viafb_iga1_odev_proc_show, NULL);
1517 }
1518
1519 static ssize_t viafb_iga1_odev_proc_write(struct file *file,
1520         const char __user *buffer, size_t count, loff_t *pos)
1521 {
1522         u32 dev_on, dev_off, dev_old, dev_new;
1523         ssize_t res;
1524
1525         dev_old = dev_new = viaparinfo->shared->iga1_devices;
1526         res = odev_update(buffer, count, &dev_new);
1527         if (res != count)
1528                 return res;
1529         dev_off = dev_old & ~dev_new;
1530         dev_on = dev_new & ~dev_old;
1531         viaparinfo->shared->iga1_devices = dev_new;
1532         viaparinfo->shared->iga2_devices &= ~dev_new;
1533         via_set_state(dev_off, VIA_STATE_OFF);
1534         via_set_source(dev_new, IGA1);
1535         via_set_state(dev_on, VIA_STATE_ON);
1536         return res;
1537 }
1538
1539 static const struct file_operations viafb_iga1_odev_proc_fops = {
1540         .owner          = THIS_MODULE,
1541         .open           = viafb_iga1_odev_proc_open,
1542         .read           = seq_read,
1543         .llseek         = seq_lseek,
1544         .release        = single_release,
1545         .write          = viafb_iga1_odev_proc_write,
1546 };
1547
1548 static int viafb_iga2_odev_proc_show(struct seq_file *m, void *v)
1549 {
1550         via_odev_to_seq(m, viaparinfo->shared->iga2_devices);
1551         return 0;
1552 }
1553
1554 static int viafb_iga2_odev_proc_open(struct inode *inode, struct file *file)
1555 {
1556         return single_open(file, viafb_iga2_odev_proc_show, NULL);
1557 }
1558
1559 static ssize_t viafb_iga2_odev_proc_write(struct file *file,
1560         const char __user *buffer, size_t count, loff_t *pos)
1561 {
1562         u32 dev_on, dev_off, dev_old, dev_new;
1563         ssize_t res;
1564
1565         dev_old = dev_new = viaparinfo->shared->iga2_devices;
1566         res = odev_update(buffer, count, &dev_new);
1567         if (res != count)
1568                 return res;
1569         dev_off = dev_old & ~dev_new;
1570         dev_on = dev_new & ~dev_old;
1571         viaparinfo->shared->iga2_devices = dev_new;
1572         viaparinfo->shared->iga1_devices &= ~dev_new;
1573         via_set_state(dev_off, VIA_STATE_OFF);
1574         via_set_source(dev_new, IGA2);
1575         via_set_state(dev_on, VIA_STATE_ON);
1576         return res;
1577 }
1578
1579 static const struct file_operations viafb_iga2_odev_proc_fops = {
1580         .owner          = THIS_MODULE,
1581         .open           = viafb_iga2_odev_proc_open,
1582         .read           = seq_read,
1583         .llseek         = seq_lseek,
1584         .release        = single_release,
1585         .write          = viafb_iga2_odev_proc_write,
1586 };
1587
1588 #define IS_VT1636(lvds_chip)    ((lvds_chip).lvds_chip_name == VT1636_LVDS)
1589 static void viafb_init_proc(struct viafb_shared *shared)
1590 {
1591         struct proc_dir_entry *iga1_entry, *iga2_entry,
1592                 *viafb_entry = proc_mkdir("viafb", NULL);
1593
1594         shared->proc_entry = viafb_entry;
1595         if (viafb_entry) {
1596 #ifdef CONFIG_FB_VIA_DIRECT_PROCFS
1597                 proc_create("dvp0", 0, viafb_entry, &viafb_dvp0_proc_fops);
1598                 proc_create("dvp1", 0, viafb_entry, &viafb_dvp1_proc_fops);
1599                 proc_create("dfph", 0, viafb_entry, &viafb_dfph_proc_fops);
1600                 proc_create("dfpl", 0, viafb_entry, &viafb_dfpl_proc_fops);
1601                 if (IS_VT1636(shared->chip_info.lvds_chip_info)
1602                         || IS_VT1636(shared->chip_info.lvds_chip_info2))
1603                         proc_create("vt1636", 0, viafb_entry,
1604                                 &viafb_vt1636_proc_fops);
1605 #endif /* CONFIG_FB_VIA_DIRECT_PROCFS */
1606
1607                 proc_create_single("supported_output_devices", 0, viafb_entry,
1608                         viafb_sup_odev_proc_show);
1609                 iga1_entry = proc_mkdir("iga1", viafb_entry);
1610                 shared->iga1_proc_entry = iga1_entry;
1611                 proc_create("output_devices", 0, iga1_entry,
1612                         &viafb_iga1_odev_proc_fops);
1613                 iga2_entry = proc_mkdir("iga2", viafb_entry);
1614                 shared->iga2_proc_entry = iga2_entry;
1615                 proc_create("output_devices", 0, iga2_entry,
1616                         &viafb_iga2_odev_proc_fops);
1617         }
1618 }
1619 static void viafb_remove_proc(struct viafb_shared *shared)
1620 {
1621         struct proc_dir_entry *viafb_entry = shared->proc_entry;
1622
1623         if (!viafb_entry)
1624                 return;
1625
1626         remove_proc_entry("output_devices", shared->iga2_proc_entry);
1627         remove_proc_entry("iga2", viafb_entry);
1628         remove_proc_entry("output_devices", shared->iga1_proc_entry);
1629         remove_proc_entry("iga1", viafb_entry);
1630         remove_proc_entry("supported_output_devices", viafb_entry);
1631
1632 #ifdef CONFIG_FB_VIA_DIRECT_PROCFS
1633         remove_proc_entry("dvp0", viafb_entry);/* parent dir */
1634         remove_proc_entry("dvp1", viafb_entry);
1635         remove_proc_entry("dfph", viafb_entry);
1636         remove_proc_entry("dfpl", viafb_entry);
1637         if (IS_VT1636(shared->chip_info.lvds_chip_info)
1638                 || IS_VT1636(shared->chip_info.lvds_chip_info2))
1639                 remove_proc_entry("vt1636", viafb_entry);
1640 #endif /* CONFIG_FB_VIA_DIRECT_PROCFS */
1641
1642         remove_proc_entry("viafb", NULL);
1643 }
1644 #undef IS_VT1636
1645
1646 static int parse_mode(const char *str, u32 devices, u32 *xres, u32 *yres)
1647 {
1648         const struct fb_videomode *mode = NULL;
1649         char *ptr;
1650
1651         if (!str) {
1652                 if (devices == VIA_CRT)
1653                         mode = via_aux_get_preferred_mode(
1654                                 viaparinfo->shared->i2c_26);
1655                 else if (devices == VIA_DVP1)
1656                         mode = via_aux_get_preferred_mode(
1657                                 viaparinfo->shared->i2c_31);
1658
1659                 if (mode) {
1660                         *xres = mode->xres;
1661                         *yres = mode->yres;
1662                 } else if (machine_is_olpc()) {
1663                         *xres = 1200;
1664                         *yres = 900;
1665                 } else {
1666                         *xres = 640;
1667                         *yres = 480;
1668                 }
1669                 return 0;
1670         }
1671
1672         *xres = simple_strtoul(str, &ptr, 10);
1673         if (ptr[0] != 'x')
1674                 return -EINVAL;
1675
1676         *yres = simple_strtoul(&ptr[1], &ptr, 10);
1677         if (ptr[0])
1678                 return -EINVAL;
1679
1680         return 0;
1681 }
1682
1683
1684 #ifdef CONFIG_PM
1685 static int viafb_suspend(void *unused)
1686 {
1687         console_lock();
1688         fb_set_suspend(viafbinfo, 1);
1689         viafb_sync(viafbinfo);
1690         console_unlock();
1691
1692         return 0;
1693 }
1694
1695 static int viafb_resume(void *unused)
1696 {
1697         console_lock();
1698         if (viaparinfo->shared->vdev->engine_mmio)
1699                 viafb_reset_engine(viaparinfo);
1700         viafb_set_par(viafbinfo);
1701         if (viafb_dual_fb)
1702                 viafb_set_par(viafbinfo1);
1703         fb_set_suspend(viafbinfo, 0);
1704
1705         console_unlock();
1706         return 0;
1707 }
1708
1709 static struct viafb_pm_hooks viafb_fb_pm_hooks = {
1710         .suspend = viafb_suspend,
1711         .resume = viafb_resume
1712 };
1713
1714 #endif
1715
1716 static void i2c_bus_probe(struct viafb_shared *shared)
1717 {
1718         /* should be always CRT */
1719         printk(KERN_INFO "viafb: Probing I2C bus 0x26\n");
1720         shared->i2c_26 = via_aux_probe(viafb_find_i2c_adapter(VIA_PORT_26));
1721
1722         /* seems to be usually DVP1 */
1723         printk(KERN_INFO "viafb: Probing I2C bus 0x31\n");
1724         shared->i2c_31 = via_aux_probe(viafb_find_i2c_adapter(VIA_PORT_31));
1725
1726         /* FIXME: what is this? */
1727         if (!machine_is_olpc()) {
1728                 printk(KERN_INFO "viafb: Probing I2C bus 0x2C\n");
1729                 shared->i2c_2C = via_aux_probe(viafb_find_i2c_adapter(VIA_PORT_2C));
1730         }
1731
1732         printk(KERN_INFO "viafb: Finished I2C bus probing");
1733 }
1734
1735 static void i2c_bus_free(struct viafb_shared *shared)
1736 {
1737         via_aux_free(shared->i2c_26);
1738         via_aux_free(shared->i2c_31);
1739         via_aux_free(shared->i2c_2C);
1740 }
1741
1742 int via_fb_pci_probe(struct viafb_dev *vdev)
1743 {
1744         u32 default_xres, default_yres;
1745         struct fb_var_screeninfo default_var;
1746         int rc;
1747         u32 viafb_par_length;
1748
1749         DEBUG_MSG(KERN_INFO "VIAFB PCI Probe!!\n");
1750         memset(&default_var, 0, sizeof(default_var));
1751         viafb_par_length = ALIGN(sizeof(struct viafb_par), BITS_PER_LONG/8);
1752
1753         /* Allocate fb_info and ***_par here, also including some other needed
1754          * variables
1755         */
1756         viafbinfo = framebuffer_alloc(viafb_par_length +
1757                 ALIGN(sizeof(struct viafb_shared), BITS_PER_LONG/8),
1758                 &vdev->pdev->dev);
1759         if (!viafbinfo) {
1760                 printk(KERN_ERR"Could not allocate memory for viafb_info.\n");
1761                 return -ENOMEM;
1762         }
1763
1764         viaparinfo = (struct viafb_par *)viafbinfo->par;
1765         viaparinfo->shared = viafbinfo->par + viafb_par_length;
1766         viaparinfo->shared->vdev = vdev;
1767         viaparinfo->vram_addr = 0;
1768         viaparinfo->tmds_setting_info = &viaparinfo->shared->tmds_setting_info;
1769         viaparinfo->lvds_setting_info = &viaparinfo->shared->lvds_setting_info;
1770         viaparinfo->lvds_setting_info2 =
1771                 &viaparinfo->shared->lvds_setting_info2;
1772         viaparinfo->chip_info = &viaparinfo->shared->chip_info;
1773
1774         i2c_bus_probe(viaparinfo->shared);
1775         if (viafb_dual_fb)
1776                 viafb_SAMM_ON = 1;
1777         parse_lcd_port();
1778         parse_dvi_port();
1779
1780         viafb_init_chip_info(vdev->chip_type);
1781         /*
1782          * The framebuffer will have been successfully mapped by
1783          * the core (or we'd not be here), but we still need to
1784          * set up our own accounting.
1785          */
1786         viaparinfo->fbmem = vdev->fbmem_start;
1787         viaparinfo->memsize = vdev->fbmem_len;
1788         viaparinfo->fbmem_free = viaparinfo->memsize;
1789         viaparinfo->fbmem_used = 0;
1790         viafbinfo->screen_base = vdev->fbmem;
1791
1792         viafbinfo->fix.mmio_start = vdev->engine_start;
1793         viafbinfo->fix.mmio_len = vdev->engine_len;
1794         viafbinfo->node = 0;
1795         viafbinfo->fbops = &viafb_ops;
1796         viafbinfo->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN;
1797
1798         viafbinfo->pseudo_palette = pseudo_pal;
1799         if (viafb_accel && !viafb_setup_engine(viafbinfo)) {
1800                 viafbinfo->flags |= FBINFO_HWACCEL_COPYAREA |
1801                         FBINFO_HWACCEL_FILLRECT |  FBINFO_HWACCEL_IMAGEBLIT;
1802                 default_var.accel_flags = FB_ACCELF_TEXT;
1803         } else {
1804                 viafbinfo->flags |= FBINFO_HWACCEL_DISABLED;
1805                 default_var.accel_flags = 0;
1806         }
1807
1808         if (viafb_second_size && (viafb_second_size < 8)) {
1809                 viafb_second_offset = viaparinfo->fbmem_free -
1810                         viafb_second_size * 1024 * 1024;
1811         } else {
1812                 viafb_second_size = 8;
1813                 viafb_second_offset = viaparinfo->fbmem_free -
1814                         viafb_second_size * 1024 * 1024;
1815         }
1816
1817         parse_mode(viafb_mode, viaparinfo->shared->iga1_devices,
1818                 &default_xres, &default_yres);
1819         if (viafb_SAMM_ON == 1)
1820                 parse_mode(viafb_mode1, viaparinfo->shared->iga2_devices,
1821                         &viafb_second_xres, &viafb_second_yres);
1822
1823         default_var.xres = default_xres;
1824         default_var.yres = default_yres;
1825         default_var.xres_virtual = default_xres;
1826         default_var.yres_virtual = default_yres;
1827         default_var.bits_per_pixel = viafb_bpp;
1828         viafb_fill_var_timing_info(&default_var, viafb_get_best_mode(
1829                 default_var.xres, default_var.yres, viafb_refresh));
1830         viafb_setup_fixinfo(&viafbinfo->fix, viaparinfo);
1831         viafbinfo->var = default_var;
1832
1833         if (viafb_dual_fb) {
1834                 viafbinfo1 = framebuffer_alloc(viafb_par_length,
1835                                 &vdev->pdev->dev);
1836                 if (!viafbinfo1) {
1837                         printk(KERN_ERR
1838                         "allocate the second framebuffer struct error\n");
1839                         rc = -ENOMEM;
1840                         goto out_fb_release;
1841                 }
1842                 viaparinfo1 = viafbinfo1->par;
1843                 memcpy(viaparinfo1, viaparinfo, viafb_par_length);
1844                 viaparinfo1->vram_addr = viafb_second_offset;
1845                 viaparinfo1->memsize = viaparinfo->memsize -
1846                         viafb_second_offset;
1847                 viaparinfo->memsize = viafb_second_offset;
1848                 viaparinfo1->fbmem = viaparinfo->fbmem + viafb_second_offset;
1849
1850                 viaparinfo1->fbmem_used = viaparinfo->fbmem_used;
1851                 viaparinfo1->fbmem_free = viaparinfo1->memsize -
1852                         viaparinfo1->fbmem_used;
1853                 viaparinfo->fbmem_free = viaparinfo->memsize;
1854                 viaparinfo->fbmem_used = 0;
1855
1856                 viaparinfo->iga_path = IGA1;
1857                 viaparinfo1->iga_path = IGA2;
1858                 memcpy(viafbinfo1, viafbinfo, sizeof(struct fb_info));
1859                 viafbinfo1->par = viaparinfo1;
1860                 viafbinfo1->screen_base = viafbinfo->screen_base +
1861                         viafb_second_offset;
1862
1863                 default_var.xres = viafb_second_xres;
1864                 default_var.yres = viafb_second_yres;
1865                 default_var.xres_virtual = viafb_second_xres;
1866                 default_var.yres_virtual = viafb_second_yres;
1867                 default_var.bits_per_pixel = viafb_bpp1;
1868                 viafb_fill_var_timing_info(&default_var, viafb_get_best_mode(
1869                         default_var.xres, default_var.yres, viafb_refresh1));
1870
1871                 viafb_setup_fixinfo(&viafbinfo1->fix, viaparinfo1);
1872                 viafb_check_var(&default_var, viafbinfo1);
1873                 viafbinfo1->var = default_var;
1874                 viafb_update_fix(viafbinfo1);
1875                 viaparinfo1->depth = fb_get_color_depth(&viafbinfo1->var,
1876                         &viafbinfo1->fix);
1877         }
1878
1879         viafb_check_var(&viafbinfo->var, viafbinfo);
1880         viafb_update_fix(viafbinfo);
1881         viaparinfo->depth = fb_get_color_depth(&viafbinfo->var,
1882                 &viafbinfo->fix);
1883         default_var.activate = FB_ACTIVATE_NOW;
1884         rc = fb_alloc_cmap(&viafbinfo->cmap, 256, 0);
1885         if (rc)
1886                 goto out_fb1_release;
1887
1888         if (viafb_dual_fb && (viafb_primary_dev == LCD_Device)
1889             && (viaparinfo->chip_info->gfx_chip_name == UNICHROME_CLE266)) {
1890                 rc = register_framebuffer(viafbinfo1);
1891                 if (rc)
1892                         goto out_dealloc_cmap;
1893         }
1894         rc = register_framebuffer(viafbinfo);
1895         if (rc)
1896                 goto out_fb1_unreg_lcd_cle266;
1897
1898         if (viafb_dual_fb && ((viafb_primary_dev != LCD_Device)
1899                         || (viaparinfo->chip_info->gfx_chip_name !=
1900                         UNICHROME_CLE266))) {
1901                 rc = register_framebuffer(viafbinfo1);
1902                 if (rc)
1903                         goto out_fb_unreg;
1904         }
1905         DEBUG_MSG(KERN_INFO "fb%d: %s frame buffer device %dx%d-%dbpp\n",
1906                   viafbinfo->node, viafbinfo->fix.id, default_var.xres,
1907                   default_var.yres, default_var.bits_per_pixel);
1908
1909         viafb_init_proc(viaparinfo->shared);
1910         viafb_init_dac(IGA2);
1911
1912 #ifdef CONFIG_PM
1913         viafb_pm_register(&viafb_fb_pm_hooks);
1914 #endif
1915         return 0;
1916
1917 out_fb_unreg:
1918         unregister_framebuffer(viafbinfo);
1919 out_fb1_unreg_lcd_cle266:
1920         if (viafb_dual_fb && (viafb_primary_dev == LCD_Device)
1921             && (viaparinfo->chip_info->gfx_chip_name == UNICHROME_CLE266))
1922                 unregister_framebuffer(viafbinfo1);
1923 out_dealloc_cmap:
1924         fb_dealloc_cmap(&viafbinfo->cmap);
1925 out_fb1_release:
1926         framebuffer_release(viafbinfo1);
1927 out_fb_release:
1928         i2c_bus_free(viaparinfo->shared);
1929         framebuffer_release(viafbinfo);
1930         return rc;
1931 }
1932
1933 void via_fb_pci_remove(struct pci_dev *pdev)
1934 {
1935         DEBUG_MSG(KERN_INFO "via_pci_remove!\n");
1936         fb_dealloc_cmap(&viafbinfo->cmap);
1937         unregister_framebuffer(viafbinfo);
1938         if (viafb_dual_fb)
1939                 unregister_framebuffer(viafbinfo1);
1940         viafb_remove_proc(viaparinfo->shared);
1941         i2c_bus_free(viaparinfo->shared);
1942         framebuffer_release(viafbinfo);
1943         if (viafb_dual_fb)
1944                 framebuffer_release(viafbinfo1);
1945 }
1946
1947 #ifndef MODULE
1948 static int __init viafb_setup(void)
1949 {
1950         char *this_opt;
1951         char *options;
1952
1953         DEBUG_MSG(KERN_INFO "viafb_setup!\n");
1954
1955         if (fb_get_options("viafb", &options))
1956                 return -ENODEV;
1957
1958         if (!options || !*options)
1959                 return 0;
1960
1961         while ((this_opt = strsep(&options, ",")) != NULL) {
1962                 if (!*this_opt)
1963                         continue;
1964
1965                 if (!strncmp(this_opt, "viafb_mode1=", 12)) {
1966                         viafb_mode1 = kstrdup(this_opt + 12, GFP_KERNEL);
1967                 } else if (!strncmp(this_opt, "viafb_mode=", 11)) {
1968                         viafb_mode = kstrdup(this_opt + 11, GFP_KERNEL);
1969                 } else if (!strncmp(this_opt, "viafb_bpp1=", 11)) {
1970                         if (kstrtouint(this_opt + 11, 0, &viafb_bpp1) < 0)
1971                                 return -EINVAL;
1972                 } else if (!strncmp(this_opt, "viafb_bpp=", 10)) {
1973                         if (kstrtouint(this_opt + 10, 0, &viafb_bpp) < 0)
1974                                 return -EINVAL;
1975                 } else if (!strncmp(this_opt, "viafb_refresh1=", 15)) {
1976                         if (kstrtoint(this_opt + 15, 0, &viafb_refresh1) < 0)
1977                                 return -EINVAL;
1978                 } else if (!strncmp(this_opt, "viafb_refresh=", 14)) {
1979                         if (kstrtoint(this_opt + 14, 0, &viafb_refresh) < 0)
1980                                 return -EINVAL;
1981                 } else if (!strncmp(this_opt, "viafb_lcd_dsp_method=", 21)) {
1982                         if (kstrtoint(this_opt + 21, 0,
1983                                       &viafb_lcd_dsp_method) < 0)
1984                                 return -EINVAL;
1985                 } else if (!strncmp(this_opt, "viafb_lcd_panel_id=", 19)) {
1986                         if (kstrtoint(this_opt + 19, 0,
1987                                       &viafb_lcd_panel_id) < 0)
1988                                 return -EINVAL;
1989                 } else if (!strncmp(this_opt, "viafb_accel=", 12)) {
1990                         if (kstrtoint(this_opt + 12, 0, &viafb_accel) < 0)
1991                                 return -EINVAL;
1992                 } else if (!strncmp(this_opt, "viafb_SAMM_ON=", 14)) {
1993                         if (kstrtoint(this_opt + 14, 0, &viafb_SAMM_ON) < 0)
1994                                 return -EINVAL;
1995                 } else if (!strncmp(this_opt, "viafb_active_dev=", 17)) {
1996                         viafb_active_dev = kstrdup(this_opt + 17, GFP_KERNEL);
1997                 } else if (!strncmp(this_opt,
1998                         "viafb_display_hardware_layout=", 30)) {
1999                         if (kstrtoint(this_opt + 30, 0,
2000                                       &viafb_display_hardware_layout) < 0)
2001                                 return -EINVAL;
2002                 } else if (!strncmp(this_opt, "viafb_second_size=", 18)) {
2003                         if (kstrtoint(this_opt + 18, 0, &viafb_second_size) < 0)
2004                                 return -EINVAL;
2005                 } else if (!strncmp(this_opt,
2006                         "viafb_platform_epia_dvi=", 24)) {
2007                         if (kstrtoint(this_opt + 24, 0,
2008                                       &viafb_platform_epia_dvi) < 0)
2009                                 return -EINVAL;
2010                 } else if (!strncmp(this_opt,
2011                         "viafb_device_lcd_dualedge=", 26)) {
2012                         if (kstrtoint(this_opt + 26, 0,
2013                                       &viafb_device_lcd_dualedge) < 0)
2014                                 return -EINVAL;
2015                 } else if (!strncmp(this_opt, "viafb_bus_width=", 16)) {
2016                         if (kstrtoint(this_opt + 16, 0, &viafb_bus_width) < 0)
2017                                 return -EINVAL;
2018                 } else if (!strncmp(this_opt, "viafb_lcd_mode=", 15)) {
2019                         if (kstrtoint(this_opt + 15, 0, &viafb_lcd_mode) < 0)
2020                                 return -EINVAL;
2021                 } else if (!strncmp(this_opt, "viafb_lcd_port=", 15)) {
2022                         viafb_lcd_port = kstrdup(this_opt + 15, GFP_KERNEL);
2023                 } else if (!strncmp(this_opt, "viafb_dvi_port=", 15)) {
2024                         viafb_dvi_port = kstrdup(this_opt + 15, GFP_KERNEL);
2025                 }
2026         }
2027         return 0;
2028 }
2029 #endif
2030
2031 /*
2032  * These are called out of via-core for now.
2033  */
2034 int __init viafb_init(void)
2035 {
2036         u32 dummy_x, dummy_y;
2037         int r = 0;
2038
2039         if (machine_is_olpc())
2040                 /* Apply XO-1.5-specific configuration. */
2041                 viafb_lcd_panel_id = 23;
2042
2043 #ifndef MODULE
2044         r = viafb_setup();
2045         if (r < 0)
2046                 return r;
2047 #endif
2048         if (parse_mode(viafb_mode, 0, &dummy_x, &dummy_y)
2049                 || !viafb_get_best_mode(dummy_x, dummy_y, viafb_refresh)
2050                 || parse_mode(viafb_mode1, 0, &dummy_x, &dummy_y)
2051                 || !viafb_get_best_mode(dummy_x, dummy_y, viafb_refresh1)
2052                 || viafb_bpp < 0 || viafb_bpp > 32
2053                 || viafb_bpp1 < 0 || viafb_bpp1 > 32
2054                 || parse_active_dev())
2055                 return -EINVAL;
2056
2057         printk(KERN_INFO
2058        "VIA Graphics Integration Chipset framebuffer %d.%d initializing\n",
2059                VERSION_MAJOR, VERSION_MINOR);
2060         return r;
2061 }
2062
2063 void __exit viafb_exit(void)
2064 {
2065         DEBUG_MSG(KERN_INFO "viafb_exit!\n");
2066 }
2067
2068 static struct fb_ops viafb_ops = {
2069         .owner = THIS_MODULE,
2070         .fb_open = viafb_open,
2071         .fb_release = viafb_release,
2072         .fb_check_var = viafb_check_var,
2073         .fb_set_par = viafb_set_par,
2074         .fb_setcolreg = viafb_setcolreg,
2075         .fb_pan_display = viafb_pan_display,
2076         .fb_blank = viafb_blank,
2077         .fb_fillrect = viafb_fillrect,
2078         .fb_copyarea = viafb_copyarea,
2079         .fb_imageblit = viafb_imageblit,
2080         .fb_cursor = viafb_cursor,
2081         .fb_ioctl = viafb_ioctl,
2082         .fb_sync = viafb_sync,
2083 };
2084
2085
2086 #ifdef MODULE
2087 module_param(viafb_mode, charp, S_IRUSR);
2088 MODULE_PARM_DESC(viafb_mode, "Set resolution (default=640x480)");
2089
2090 module_param(viafb_mode1, charp, S_IRUSR);
2091 MODULE_PARM_DESC(viafb_mode1, "Set resolution (default=640x480)");
2092
2093 module_param(viafb_bpp, int, S_IRUSR);
2094 MODULE_PARM_DESC(viafb_bpp, "Set color depth (default=32bpp)");
2095
2096 module_param(viafb_bpp1, int, S_IRUSR);
2097 MODULE_PARM_DESC(viafb_bpp1, "Set color depth (default=32bpp)");
2098
2099 module_param(viafb_refresh, int, S_IRUSR);
2100 MODULE_PARM_DESC(viafb_refresh,
2101         "Set CRT viafb_refresh rate (default = 60)");
2102
2103 module_param(viafb_refresh1, int, S_IRUSR);
2104 MODULE_PARM_DESC(viafb_refresh1,
2105         "Set CRT refresh rate (default = 60)");
2106
2107 module_param(viafb_lcd_panel_id, int, S_IRUSR);
2108 MODULE_PARM_DESC(viafb_lcd_panel_id,
2109         "Set Flat Panel type(Default=1024x768)");
2110
2111 module_param(viafb_lcd_dsp_method, int, S_IRUSR);
2112 MODULE_PARM_DESC(viafb_lcd_dsp_method,
2113         "Set Flat Panel display scaling method.(Default=Expandsion)");
2114
2115 module_param(viafb_SAMM_ON, int, S_IRUSR);
2116 MODULE_PARM_DESC(viafb_SAMM_ON,
2117         "Turn on/off flag of SAMM(Default=OFF)");
2118
2119 module_param(viafb_accel, int, S_IRUSR);
2120 MODULE_PARM_DESC(viafb_accel,
2121         "Set 2D Hardware Acceleration: 0 = OFF, 1 = ON (default)");
2122
2123 module_param(viafb_active_dev, charp, S_IRUSR);
2124 MODULE_PARM_DESC(viafb_active_dev, "Specify active devices.");
2125
2126 module_param(viafb_display_hardware_layout, int, S_IRUSR);
2127 MODULE_PARM_DESC(viafb_display_hardware_layout,
2128         "Display Hardware Layout (LCD Only, DVI Only...,etc)");
2129
2130 module_param(viafb_second_size, int, S_IRUSR);
2131 MODULE_PARM_DESC(viafb_second_size,
2132         "Set secondary device memory size");
2133
2134 module_param(viafb_dual_fb, int, S_IRUSR);
2135 MODULE_PARM_DESC(viafb_dual_fb,
2136         "Turn on/off flag of dual framebuffer devices.(Default = OFF)");
2137
2138 module_param(viafb_platform_epia_dvi, int, S_IRUSR);
2139 MODULE_PARM_DESC(viafb_platform_epia_dvi,
2140         "Turn on/off flag of DVI devices on EPIA board.(Default = OFF)");
2141
2142 module_param(viafb_device_lcd_dualedge, int, S_IRUSR);
2143 MODULE_PARM_DESC(viafb_device_lcd_dualedge,
2144         "Turn on/off flag of dual edge panel.(Default = OFF)");
2145
2146 module_param(viafb_bus_width, int, S_IRUSR);
2147 MODULE_PARM_DESC(viafb_bus_width,
2148         "Set bus width of panel.(Default = 12)");
2149
2150 module_param(viafb_lcd_mode, int, S_IRUSR);
2151 MODULE_PARM_DESC(viafb_lcd_mode,
2152         "Set Flat Panel mode(Default=OPENLDI)");
2153
2154 module_param(viafb_lcd_port, charp, S_IRUSR);
2155 MODULE_PARM_DESC(viafb_lcd_port, "Specify LCD output port.");
2156
2157 module_param(viafb_dvi_port, charp, S_IRUSR);
2158 MODULE_PARM_DESC(viafb_dvi_port, "Specify DVI output port.");
2159
2160 MODULE_LICENSE("GPL");
2161 #endif