drivers/video/fbdev/via/viafbdev.c

   1 /*
   2  * Copyright 1998-2009 VIA Technologies, Inc. All Rights Reserved.
   3  * Copyright 2001-2008 S3 Graphics, Inc. All Rights Reserved.
   4
   5  * This program is free software; you can redistribute it and/or
   6  * modify it under the terms of the GNU General Public
   7  * License as published by the Free Software Foundation;
   8  * either version 2, or (at your option) any later version.
   9
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTIES OR REPRESENTATIONS; without even
  12  * the implied warranty of MERCHANTABILITY or FITNESS FOR
  13  * A PARTICULAR PURPOSE.See the GNU General Public License
  14  * for more details.
  15
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc.,
  19  * 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
  20  */
  21
  22 #include <linux/module.h>
  23 #include <linux/seq_file.h>
  24 #include <linux/slab.h>
  25 #include <linux/stat.h>
  26 #include <linux/via-core.h>
  27 #include <linux/via_i2c.h>
  28 #include <asm/olpc.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(256 * sizeof(u32), GFP_KERNEL);
 600                 if (!viafb_gamma_table)
 601                         return -ENOMEM;
 602                 viafb_get_gamma_table(viafb_gamma_table);
 603                 if (copy_to_user(argp, viafb_gamma_table,
 604                         256 * sizeof(u32))) {
 605                         kfree(viafb_gamma_table);
 606                         return -EFAULT;
 607                 }
 608                 kfree(viafb_gamma_table);
 609                 break;
 610
 611         case VIAFB_GET_GAMMA_SUPPORT_STATE:
 612                 viafb_get_gamma_support_state(viafb_bpp, &state_info);
 613                 if (put_user(state_info, argp))
 614                         return -EFAULT;
 615                 break;
 616         case VIAFB_SYNC_SURFACE:
 617                 DEBUG_MSG(KERN_INFO "lobo VIAFB_SYNC_SURFACE\n");
 618                 break;
 619         case VIAFB_GET_DRIVER_CAPS:
 620                 break;
 621
 622         case VIAFB_GET_PANEL_MAX_SIZE:
 623                 if (copy_from_user(&u.panel_pos_size_para, argp,
 624                                    sizeof(u.panel_pos_size_para)))
 625                         return -EFAULT;
 626                 u.panel_pos_size_para.x = u.panel_pos_size_para.y = 0;
 627                 if (copy_to_user(argp, &u.panel_pos_size_para,
 628                      sizeof(u.panel_pos_size_para)))
 629                         return -EFAULT;
 630                 break;
 631         case VIAFB_GET_PANEL_MAX_POSITION:
 632                 if (copy_from_user(&u.panel_pos_size_para, argp,
 633                                    sizeof(u.panel_pos_size_para)))
 634                         return -EFAULT;
 635                 u.panel_pos_size_para.x = u.panel_pos_size_para.y = 0;
 636                 if (copy_to_user(argp, &u.panel_pos_size_para,
 637                                  sizeof(u.panel_pos_size_para)))
 638                         return -EFAULT;
 639                 break;
 640
 641         case VIAFB_GET_PANEL_POSITION:
 642                 if (copy_from_user(&u.panel_pos_size_para, argp,
 643                                    sizeof(u.panel_pos_size_para)))
 644                         return -EFAULT;
 645                 u.panel_pos_size_para.x = u.panel_pos_size_para.y = 0;
 646                 if (copy_to_user(argp, &u.panel_pos_size_para,
 647                                  sizeof(u.panel_pos_size_para)))
 648                         return -EFAULT;
 649                 break;
 650         case VIAFB_GET_PANEL_SIZE:
 651                 if (copy_from_user(&u.panel_pos_size_para, argp,
 652                                    sizeof(u.panel_pos_size_para)))
 653                         return -EFAULT;
 654                 u.panel_pos_size_para.x = u.panel_pos_size_para.y = 0;
 655                 if (copy_to_user(argp, &u.panel_pos_size_para,
 656                                  sizeof(u.panel_pos_size_para)))
 657                         return -EFAULT;
 658                 break;
 659
 660         case VIAFB_SET_PANEL_POSITION:
 661                 if (copy_from_user(&u.panel_pos_size_para, argp,
 662                                    sizeof(u.panel_pos_size_para)))
 663                         return -EFAULT;
 664                 break;
 665         case VIAFB_SET_PANEL_SIZE:
 666                 if (copy_from_user(&u.panel_pos_size_para, argp,
 667                                    sizeof(u.panel_pos_size_para)))
 668                         return -EFAULT;
 669                 break;
 670
 671         default:
 672                 return -EINVAL;
 673         }
 674
 675         return 0;
 676 }
 677
 678 static void viafb_fillrect(struct fb_info *info,
 679         const struct fb_fillrect *rect)
 680 {
 681         struct viafb_par *viapar = info->par;
 682         struct viafb_shared *shared = viapar->shared;
 683         u32 fg_color;
 684         u8 rop;
 685
 686         if (info->flags & FBINFO_HWACCEL_DISABLED || !shared->hw_bitblt) {
 687                 cfb_fillrect(info, rect);
 688                 return;
 689         }
 690
 691         if (!rect->width || !rect->height)
 692                 return;
 693
 694         if (info->fix.visual == FB_VISUAL_TRUECOLOR)
 695                 fg_color = ((u32 *)info->pseudo_palette)[rect->color];
 696         else
 697                 fg_color = rect->color;
 698
 699         if (rect->rop == ROP_XOR)
 700                 rop = 0x5A;
 701         else
 702                 rop = 0xF0;
 703
 704         DEBUG_MSG(KERN_DEBUG "viafb 2D engine: fillrect\n");
 705         if (shared->hw_bitblt(shared->vdev->engine_mmio, VIA_BITBLT_FILL,
 706                 rect->width, rect->height, info->var.bits_per_pixel,
 707                 viapar->vram_addr, info->fix.line_length, rect->dx, rect->dy,
 708                 NULL, 0, 0, 0, 0, fg_color, 0, rop))
 709                 cfb_fillrect(info, rect);
 710 }
 711
 712 static void viafb_copyarea(struct fb_info *info,
 713         const struct fb_copyarea *area)
 714 {
 715         struct viafb_par *viapar = info->par;
 716         struct viafb_shared *shared = viapar->shared;
 717
 718         if (info->flags & FBINFO_HWACCEL_DISABLED || !shared->hw_bitblt) {
 719                 cfb_copyarea(info, area);
 720                 return;
 721         }
 722
 723         if (!area->width || !area->height)
 724                 return;
 725
 726         DEBUG_MSG(KERN_DEBUG "viafb 2D engine: copyarea\n");
 727         if (shared->hw_bitblt(shared->vdev->engine_mmio, VIA_BITBLT_COLOR,
 728                 area->width, area->height, info->var.bits_per_pixel,
 729                 viapar->vram_addr, info->fix.line_length, area->dx, area->dy,
 730                 NULL, viapar->vram_addr, info->fix.line_length,
 731                 area->sx, area->sy, 0, 0, 0))
 732                 cfb_copyarea(info, area);
 733 }
 734
 735 static void viafb_imageblit(struct fb_info *info,
 736         const struct fb_image *image)
 737 {
 738         struct viafb_par *viapar = info->par;
 739         struct viafb_shared *shared = viapar->shared;
 740         u32 fg_color = 0, bg_color = 0;
 741         u8 op;
 742
 743         if (info->flags & FBINFO_HWACCEL_DISABLED || !shared->hw_bitblt ||
 744                 (image->depth != 1 && image->depth != viapar->depth)) {
 745                 cfb_imageblit(info, image);
 746                 return;
 747         }
 748
 749         if (image->depth == 1) {
 750                 op = VIA_BITBLT_MONO;
 751                 if (info->fix.visual == FB_VISUAL_TRUECOLOR) {
 752                         fg_color =
 753                                 ((u32 *)info->pseudo_palette)[image->fg_color];
 754                         bg_color =
 755                                 ((u32 *)info->pseudo_palette)[image->bg_color];
 756                 } else {
 757                         fg_color = image->fg_color;
 758                         bg_color = image->bg_color;
 759                 }
 760         } else
 761                 op = VIA_BITBLT_COLOR;
 762
 763         DEBUG_MSG(KERN_DEBUG "viafb 2D engine: imageblit\n");
 764         if (shared->hw_bitblt(shared->vdev->engine_mmio, op,
 765                 image->width, image->height, info->var.bits_per_pixel,
 766                 viapar->vram_addr, info->fix.line_length, image->dx, image->dy,
 767                 (u32 *)image->data, 0, 0, 0, 0, fg_color, bg_color, 0))
 768                 cfb_imageblit(info, image);
 769 }
 770
 771 static int viafb_cursor(struct fb_info *info, struct fb_cursor *cursor)
 772 {
 773         struct viafb_par *viapar = info->par;
 774         void __iomem *engine = viapar->shared->vdev->engine_mmio;
 775         u32 temp, xx, yy, bg_color = 0, fg_color = 0,
 776                 chip_name = viapar->shared->chip_info.gfx_chip_name;
 777         int i, j = 0, cur_size = 64;
 778
 779         if (info->flags & FBINFO_HWACCEL_DISABLED || info != viafbinfo)
 780                 return -ENODEV;
 781
 782         /* LCD ouput does not support hw cursors (at least on VN896) */
 783         if ((chip_name == UNICHROME_CLE266 && viapar->iga_path == IGA2) ||
 784                 viafb_LCD_ON)
 785                 return -ENODEV;
 786
 787         viafb_show_hw_cursor(info, HW_Cursor_OFF);
 788
 789         if (cursor->set & FB_CUR_SETHOT) {
 790                 temp = (cursor->hot.x << 16) + cursor->hot.y;
 791                 writel(temp, engine + VIA_REG_CURSOR_ORG);
 792         }
 793
 794         if (cursor->set & FB_CUR_SETPOS) {
 795                 yy = cursor->image.dy - info->var.yoffset;
 796                 xx = cursor->image.dx - info->var.xoffset;
 797                 temp = yy & 0xFFFF;
 798                 temp |= (xx << 16);
 799                 writel(temp, engine + VIA_REG_CURSOR_POS);
 800         }
 801
 802         if (cursor->image.width <= 32 && cursor->image.height <= 32)
 803                 cur_size = 32;
 804         else if (cursor->image.width <= 64 && cursor->image.height <= 64)
 805                 cur_size = 64;
 806         else {
 807                 printk(KERN_WARNING "viafb_cursor: The cursor is too large "
 808                         "%dx%d", cursor->image.width, cursor->image.height);
 809                 return -ENXIO;
 810         }
 811
 812         if (cursor->set & FB_CUR_SETSIZE) {
 813                 temp = readl(engine + VIA_REG_CURSOR_MODE);
 814                 if (cur_size == 32)
 815                         temp |= 0x2;
 816                 else
 817                         temp &= ~0x2;
 818
 819                 writel(temp, engine + VIA_REG_CURSOR_MODE);
 820         }
 821
 822         if (cursor->set & FB_CUR_SETCMAP) {
 823                 fg_color = cursor->image.fg_color;
 824                 bg_color = cursor->image.bg_color;
 825                 if (chip_name == UNICHROME_CX700 ||
 826                         chip_name == UNICHROME_VX800 ||
 827                         chip_name == UNICHROME_VX855 ||
 828                         chip_name == UNICHROME_VX900) {
 829                         fg_color =
 830                                 ((info->cmap.red[fg_color] & 0xFFC0) << 14) |
 831                                 ((info->cmap.green[fg_color] & 0xFFC0) << 4) |
 832                                 ((info->cmap.blue[fg_color] & 0xFFC0) >> 6);
 833                         bg_color =
 834                                 ((info->cmap.red[bg_color] & 0xFFC0) << 14) |
 835                                 ((info->cmap.green[bg_color] & 0xFFC0) << 4) |
 836                                 ((info->cmap.blue[bg_color] & 0xFFC0) >> 6);
 837                 } else {
 838                         fg_color =
 839                                 ((info->cmap.red[fg_color] & 0xFF00) << 8) |
 840                                 (info->cmap.green[fg_color] & 0xFF00) |
 841                                 ((info->cmap.blue[fg_color] & 0xFF00) >> 8);
 842                         bg_color =
 843                                 ((info->cmap.red[bg_color] & 0xFF00) << 8) |
 844                                 (info->cmap.green[bg_color] & 0xFF00) |
 845                                 ((info->cmap.blue[bg_color] & 0xFF00) >> 8);
 846                 }
 847
 848                 writel(bg_color, engine + VIA_REG_CURSOR_BG);
 849                 writel(fg_color, engine + VIA_REG_CURSOR_FG);
 850         }
 851
 852         if (cursor->set & FB_CUR_SETSHAPE) {
 853                 struct {
 854                         u8 data[CURSOR_SIZE];
 855                         u32 bak[CURSOR_SIZE / 4];
 856                 } *cr_data = kzalloc(sizeof(*cr_data), GFP_ATOMIC);
 857                 int size = ((cursor->image.width + 7) >> 3) *
 858                         cursor->image.height;
 859
 860                 if (!cr_data)
 861                         return -ENOMEM;
 862
 863                 if (cur_size == 32) {
 864                         for (i = 0; i < (CURSOR_SIZE / 4); i++) {
 865                                 cr_data->bak[i] = 0x0;
 866                                 cr_data->bak[i + 1] = 0xFFFFFFFF;
 867                                 i += 1;
 868                         }
 869                 } else {
 870                         for (i = 0; i < (CURSOR_SIZE / 4); i++) {
 871                                 cr_data->bak[i] = 0x0;
 872                                 cr_data->bak[i + 1] = 0x0;
 873                                 cr_data->bak[i + 2] = 0xFFFFFFFF;
 874                                 cr_data->bak[i + 3] = 0xFFFFFFFF;
 875                                 i += 3;
 876                         }
 877                 }
 878
 879                 switch (cursor->rop) {
 880                 case ROP_XOR:
 881                         for (i = 0; i < size; i++)
 882                                 cr_data->data[i] = cursor->mask[i];
 883                         break;
 884                 case ROP_COPY:
 885
 886                         for (i = 0; i < size; i++)
 887                                 cr_data->data[i] = cursor->mask[i];
 888                         break;
 889                 default:
 890                         break;
 891                 }
 892
 893                 if (cur_size == 32) {
 894                         for (i = 0; i < size; i++) {
 895                                 cr_data->bak[j] = (u32) cr_data->data[i];
 896                                 cr_data->bak[j + 1] = ~cr_data->bak[j];
 897                                 j += 2;
 898                         }
 899                 } else {
 900                         for (i = 0; i < size; i++) {
 901                                 cr_data->bak[j] = (u32) cr_data->data[i];
 902                                 cr_data->bak[j + 1] = 0x0;
 903                                 cr_data->bak[j + 2] = ~cr_data->bak[j];
 904                                 cr_data->bak[j + 3] = ~cr_data->bak[j + 1];
 905                                 j += 4;
 906                         }
 907                 }
 908
 909                 memcpy_toio(viafbinfo->screen_base + viapar->shared->
 910                         cursor_vram_addr, cr_data->bak, CURSOR_SIZE);
 911                 kfree(cr_data);
 912         }
 913
 914         if (cursor->enable)
 915                 viafb_show_hw_cursor(info, HW_Cursor_ON);
 916
 917         return 0;
 918 }
 919
 920 static int viafb_sync(struct fb_info *info)
 921 {
 922         if (!(info->flags & FBINFO_HWACCEL_DISABLED))
 923                 viafb_wait_engine_idle(info);
 924         return 0;
 925 }
 926
 927 static int get_primary_device(void)
 928 {
 929         int primary_device = 0;
 930         /* Rule: device on iga1 path are the primary device. */
 931         if (viafb_SAMM_ON) {
 932                 if (viafb_CRT_ON) {
 933                         if (viaparinfo->shared->iga1_devices & VIA_CRT) {
 934                                 DEBUG_MSG(KERN_INFO "CRT IGA Path:%d\n", IGA1);
 935                                 primary_device = CRT_Device;
 936                         }
 937                 }
 938                 if (viafb_DVI_ON) {
 939                         if (viaparinfo->tmds_setting_info->iga_path == IGA1) {
 940                                 DEBUG_MSG(KERN_INFO "DVI IGA Path:%d\n",
 941                                         viaparinfo->
 942                                         tmds_setting_info->iga_path);
 943                                 primary_device = DVI_Device;
 944                         }
 945                 }
 946                 if (viafb_LCD_ON) {
 947                         if (viaparinfo->lvds_setting_info->iga_path == IGA1) {
 948                                 DEBUG_MSG(KERN_INFO "LCD IGA Path:%d\n",
 949                                         viaparinfo->
 950                                         lvds_setting_info->iga_path);
 951                                 primary_device = LCD_Device;
 952                         }
 953                 }
 954                 if (viafb_LCD2_ON) {
 955                         if (viaparinfo->lvds_setting_info2->iga_path == IGA1) {
 956                                 DEBUG_MSG(KERN_INFO "LCD2 IGA Path:%d\n",
 957                                         viaparinfo->
 958                                         lvds_setting_info2->iga_path);
 959                                 primary_device = LCD2_Device;
 960                         }
 961                 }
 962         }
 963         return primary_device;
 964 }
 965
 966 static void retrieve_device_setting(struct viafb_ioctl_setting
 967         *setting_info)
 968 {
 969
 970         /* get device status */
 971         if (viafb_CRT_ON == 1)
 972                 setting_info->device_status = CRT_Device;
 973         if (viafb_DVI_ON == 1)
 974                 setting_info->device_status |= DVI_Device;
 975         if (viafb_LCD_ON == 1)
 976                 setting_info->device_status |= LCD_Device;
 977         if (viafb_LCD2_ON == 1)
 978                 setting_info->device_status |= LCD2_Device;
 979
 980         setting_info->samm_status = viafb_SAMM_ON;
 981         setting_info->primary_device = get_primary_device();
 982
 983         setting_info->first_dev_bpp = viafb_bpp;
 984         setting_info->second_dev_bpp = viafb_bpp1;
 985
 986         setting_info->first_dev_refresh = viafb_refresh;
 987         setting_info->second_dev_refresh = viafb_refresh1;
 988
 989         setting_info->first_dev_hor_res = viafb_hotplug_Xres;
 990         setting_info->first_dev_ver_res = viafb_hotplug_Yres;
 991         setting_info->second_dev_hor_res = viafb_second_xres;
 992         setting_info->second_dev_ver_res = viafb_second_yres;
 993
 994         /* Get lcd attributes */
 995         setting_info->lcd_attributes.display_center = viafb_lcd_dsp_method;
 996         setting_info->lcd_attributes.panel_id = viafb_lcd_panel_id;
 997         setting_info->lcd_attributes.lcd_mode = viafb_lcd_mode;
 998 }
 999
1000 static int __init parse_active_dev(void)
1001 {
1002         viafb_CRT_ON = STATE_OFF;
1003         viafb_DVI_ON = STATE_OFF;
1004         viafb_LCD_ON = STATE_OFF;
1005         viafb_LCD2_ON = STATE_OFF;
1006         /* 1. Modify the active status of devices. */
1007         /* 2. Keep the order of devices, so we can set corresponding
1008            IGA path to devices in SAMM case. */
1009         /*    Note: The previous of active_dev is primary device,
1010            and the following is secondary device. */
1011         if (!viafb_active_dev) {
1012                 if (machine_is_olpc()) { /* LCD only */
1013                         viafb_LCD_ON = STATE_ON;
1014                         viafb_SAMM_ON = STATE_OFF;
1015                 } else {
1016                         viafb_CRT_ON = STATE_ON;
1017                         viafb_SAMM_ON = STATE_OFF;
1018                 }
1019         } else if (!strcmp(viafb_active_dev, "CRT+DVI")) {
1020                 /* CRT+DVI */
1021                 viafb_CRT_ON = STATE_ON;
1022                 viafb_DVI_ON = STATE_ON;
1023                 viafb_primary_dev = CRT_Device;
1024         } else if (!strcmp(viafb_active_dev, "DVI+CRT")) {
1025                 /* DVI+CRT */
1026                 viafb_CRT_ON = STATE_ON;
1027                 viafb_DVI_ON = STATE_ON;
1028                 viafb_primary_dev = DVI_Device;
1029         } else if (!strcmp(viafb_active_dev, "CRT+LCD")) {
1030                 /* CRT+LCD */
1031                 viafb_CRT_ON = STATE_ON;
1032                 viafb_LCD_ON = STATE_ON;
1033                 viafb_primary_dev = CRT_Device;
1034         } else if (!strcmp(viafb_active_dev, "LCD+CRT")) {
1035                 /* LCD+CRT */
1036                 viafb_CRT_ON = STATE_ON;
1037                 viafb_LCD_ON = STATE_ON;
1038                 viafb_primary_dev = LCD_Device;
1039         } else if (!strcmp(viafb_active_dev, "DVI+LCD")) {
1040                 /* DVI+LCD */
1041                 viafb_DVI_ON = STATE_ON;
1042                 viafb_LCD_ON = STATE_ON;
1043                 viafb_primary_dev = DVI_Device;
1044         } else if (!strcmp(viafb_active_dev, "LCD+DVI")) {
1045                 /* LCD+DVI */
1046                 viafb_DVI_ON = STATE_ON;
1047                 viafb_LCD_ON = STATE_ON;
1048                 viafb_primary_dev = LCD_Device;
1049         } else if (!strcmp(viafb_active_dev, "LCD+LCD2")) {
1050                 viafb_LCD_ON = STATE_ON;
1051                 viafb_LCD2_ON = STATE_ON;
1052                 viafb_primary_dev = LCD_Device;
1053         } else if (!strcmp(viafb_active_dev, "LCD2+LCD")) {
1054                 viafb_LCD_ON = STATE_ON;
1055                 viafb_LCD2_ON = STATE_ON;
1056                 viafb_primary_dev = LCD2_Device;
1057         } else if (!strcmp(viafb_active_dev, "CRT")) {
1058                 /* CRT only */
1059                 viafb_CRT_ON = STATE_ON;
1060                 viafb_SAMM_ON = STATE_OFF;
1061         } else if (!strcmp(viafb_active_dev, "DVI")) {
1062                 /* DVI only */
1063                 viafb_DVI_ON = STATE_ON;
1064                 viafb_SAMM_ON = STATE_OFF;
1065         } else if (!strcmp(viafb_active_dev, "LCD")) {
1066                 /* LCD only */
1067                 viafb_LCD_ON = STATE_ON;
1068                 viafb_SAMM_ON = STATE_OFF;
1069         } else
1070                 return -EINVAL;
1071
1072         return 0;
1073 }
1074
1075 static int parse_port(char *opt_str, int *output_interface)
1076 {
1077         if (!strncmp(opt_str, "DVP0", 4))
1078                 *output_interface = INTERFACE_DVP0;
1079         else if (!strncmp(opt_str, "DVP1", 4))
1080                 *output_interface = INTERFACE_DVP1;
1081         else if (!strncmp(opt_str, "DFP_HIGHLOW", 11))
1082                 *output_interface = INTERFACE_DFP;
1083         else if (!strncmp(opt_str, "DFP_HIGH", 8))
1084                 *output_interface = INTERFACE_DFP_HIGH;
1085         else if (!strncmp(opt_str, "DFP_LOW", 7))
1086                 *output_interface = INTERFACE_DFP_LOW;
1087         else
1088                 *output_interface = INTERFACE_NONE;
1089         return 0;
1090 }
1091
1092 static void parse_lcd_port(void)
1093 {
1094         parse_port(viafb_lcd_port, &viaparinfo->chip_info->lvds_chip_info.
1095                 output_interface);
1096         /*Initialize to avoid unexpected behavior */
1097         viaparinfo->chip_info->lvds_chip_info2.output_interface =
1098         INTERFACE_NONE;
1099
1100         DEBUG_MSG(KERN_INFO "parse_lcd_port: viafb_lcd_port:%s,interface:%d\n",
1101                   viafb_lcd_port, viaparinfo->chip_info->lvds_chip_info.
1102                   output_interface);
1103 }
1104
1105 static void parse_dvi_port(void)
1106 {
1107         parse_port(viafb_dvi_port, &viaparinfo->chip_info->tmds_chip_info.
1108                 output_interface);
1109
1110         DEBUG_MSG(KERN_INFO "parse_dvi_port: viafb_dvi_port:%s,interface:%d\n",
1111                   viafb_dvi_port, viaparinfo->chip_info->tmds_chip_info.
1112                   output_interface);
1113 }
1114
1115 #ifdef CONFIG_FB_VIA_DIRECT_PROCFS
1116
1117 /*
1118  * The proc filesystem read/write function, a simple proc implement to
1119  * get/set the value of DPA  DVP0,   DVP0DataDriving,  DVP0ClockDriving, DVP1,
1120  * DVP1Driving, DFPHigh, DFPLow CR96,   SR2A[5], SR1B[1], SR2A[4], SR1E[2],
1121  * CR9B,    SR65,    CR97,    CR99
1122  */
1123 static int viafb_dvp0_proc_show(struct seq_file *m, void *v)
1124 {
1125         u8 dvp0_data_dri = 0, dvp0_clk_dri = 0, dvp0 = 0;
1126         dvp0_data_dri =
1127             (viafb_read_reg(VIASR, SR2A) & BIT5) >> 4 |
1128             (viafb_read_reg(VIASR, SR1B) & BIT1) >> 1;
1129         dvp0_clk_dri =
1130             (viafb_read_reg(VIASR, SR2A) & BIT4) >> 3 |
1131             (viafb_read_reg(VIASR, SR1E) & BIT2) >> 2;
1132         dvp0 = viafb_read_reg(VIACR, CR96) & 0x0f;
1133         seq_printf(m, "%x %x %x\n", dvp0, dvp0_data_dri, dvp0_clk_dri);
1134         return 0;
1135 }
1136
1137 static int viafb_dvp0_proc_open(struct inode *inode, struct file *file)
1138 {
1139         return single_open(file, viafb_dvp0_proc_show, NULL);
1140 }
1141
1142 static ssize_t viafb_dvp0_proc_write(struct file *file,
1143         const char __user *buffer, size_t count, loff_t *pos)
1144 {
1145         char buf[20], *value, *pbuf;
1146         u8 reg_val = 0;
1147         unsigned long length, i;
1148         if (count < 1)
1149                 return -EINVAL;
1150         length = count > 20 ? 20 : count;
1151         if (copy_from_user(&buf[0], buffer, length))
1152                 return -EFAULT;
1153         buf[length - 1] = '\0'; /*Ensure end string */
1154         pbuf = &buf[0];
1155         for (i = 0; i < 3; i++) {
1156                 value = strsep(&pbuf, " ");
1157                 if (value != NULL) {
1158                         if (kstrtou8(value, 0, &reg_val) < 0)
1159                                 return -EINVAL;
1160                         DEBUG_MSG(KERN_INFO "DVP0:reg_val[%l]=:%x\n", i,
1161                                   reg_val);
1162                         switch (i) {
1163                         case 0:
1164                                 viafb_write_reg_mask(CR96, VIACR,
1165                                         reg_val, 0x0f);
1166                                 break;
1167                         case 1:
1168                                 viafb_write_reg_mask(SR2A, VIASR,
1169                                         reg_val << 4, BIT5);
1170                                 viafb_write_reg_mask(SR1B, VIASR,
1171                                         reg_val << 1, BIT1);
1172                                 break;
1173                         case 2:
1174                                 viafb_write_reg_mask(SR2A, VIASR,
1175                                         reg_val << 3, BIT4);
1176                                 viafb_write_reg_mask(SR1E, VIASR,
1177                                         reg_val << 2, BIT2);
1178                                 break;
1179                         default:
1180                                 break;
1181                         }
1182                 } else {
1183                         break;
1184                 }
1185         }
1186         return count;
1187 }
1188
1189 static const struct file_operations viafb_dvp0_proc_fops = {
1190         .owner          = THIS_MODULE,
1191         .open           = viafb_dvp0_proc_open,
1192         .read           = seq_read,
1193         .llseek         = seq_lseek,
1194         .release        = single_release,
1195         .write          = viafb_dvp0_proc_write,
1196 };
1197
1198 static int viafb_dvp1_proc_show(struct seq_file *m, void *v)
1199 {
1200         u8 dvp1 = 0, dvp1_data_dri = 0, dvp1_clk_dri = 0;
1201         dvp1 = viafb_read_reg(VIACR, CR9B) & 0x0f;
1202         dvp1_data_dri = (viafb_read_reg(VIASR, SR65) & 0x0c) >> 2;
1203         dvp1_clk_dri = viafb_read_reg(VIASR, SR65) & 0x03;
1204         seq_printf(m, "%x %x %x\n", dvp1, dvp1_data_dri, dvp1_clk_dri);
1205         return 0;
1206 }
1207
1208 static int viafb_dvp1_proc_open(struct inode *inode, struct file *file)
1209 {
1210         return single_open(file, viafb_dvp1_proc_show, NULL);
1211 }
1212
1213 static ssize_t viafb_dvp1_proc_write(struct file *file,
1214         const char __user *buffer, size_t count, loff_t *pos)
1215 {
1216         char buf[20], *value, *pbuf;
1217         u8 reg_val = 0;
1218         unsigned long length, i;
1219         if (count < 1)
1220                 return -EINVAL;
1221         length = count > 20 ? 20 : count;
1222         if (copy_from_user(&buf[0], buffer, length))
1223                 return -EFAULT;
1224         buf[length - 1] = '\0'; /*Ensure end string */
1225         pbuf = &buf[0];
1226         for (i = 0; i < 3; i++) {
1227                 value = strsep(&pbuf, " ");
1228                 if (value != NULL) {
1229                         if (kstrtou8(value, 0, &reg_val) < 0)
1230                                 return -EINVAL;
1231                         switch (i) {
1232                         case 0:
1233                                 viafb_write_reg_mask(CR9B, VIACR,
1234                                         reg_val, 0x0f);
1235                                 break;
1236                         case 1:
1237                                 viafb_write_reg_mask(SR65, VIASR,
1238                                         reg_val << 2, 0x0c);
1239                                 break;
1240                         case 2:
1241                                 viafb_write_reg_mask(SR65, VIASR,
1242                                         reg_val, 0x03);
1243                                 break;
1244                         default:
1245                                 break;
1246                         }
1247                 } else {
1248                         break;
1249                 }
1250         }
1251         return count;
1252 }
1253
1254 static const struct file_operations viafb_dvp1_proc_fops = {
1255         .owner          = THIS_MODULE,
1256         .open           = viafb_dvp1_proc_open,
1257         .read           = seq_read,
1258         .llseek         = seq_lseek,
1259         .release        = single_release,
1260         .write          = viafb_dvp1_proc_write,
1261 };
1262
1263 static int viafb_dfph_proc_show(struct seq_file *m, void *v)
1264 {
1265         u8 dfp_high = 0;
1266         dfp_high = viafb_read_reg(VIACR, CR97) & 0x0f;
1267         seq_printf(m, "%x\n", dfp_high);
1268         return 0;
1269 }
1270
1271 static int viafb_dfph_proc_open(struct inode *inode, struct file *file)
1272 {
1273         return single_open(file, viafb_dfph_proc_show, NULL);
1274 }
1275
1276 static ssize_t viafb_dfph_proc_write(struct file *file,
1277         const char __user *buffer, size_t count, loff_t *pos)
1278 {
1279         int err;
1280         u8 reg_val;
1281         err = kstrtou8_from_user(buffer, count, 0, &reg_val);
1282         if (err)
1283                 return err;
1284
1285         viafb_write_reg_mask(CR97, VIACR, reg_val, 0x0f);
1286         return count;
1287 }
1288
1289 static const struct file_operations viafb_dfph_proc_fops = {
1290         .owner          = THIS_MODULE,
1291         .open           = viafb_dfph_proc_open,
1292         .read           = seq_read,
1293         .llseek         = seq_lseek,
1294         .release        = single_release,
1295         .write          = viafb_dfph_proc_write,
1296 };
1297
1298 static int viafb_dfpl_proc_show(struct seq_file *m, void *v)
1299 {
1300         u8 dfp_low = 0;
1301         dfp_low = viafb_read_reg(VIACR, CR99) & 0x0f;
1302         seq_printf(m, "%x\n", dfp_low);
1303         return 0;
1304 }
1305
1306 static int viafb_dfpl_proc_open(struct inode *inode, struct file *file)
1307 {
1308         return single_open(file, viafb_dfpl_proc_show, NULL);
1309 }
1310
1311 static ssize_t viafb_dfpl_proc_write(struct file *file,
1312         const char __user *buffer, size_t count, loff_t *pos)
1313 {
1314         int err;
1315         u8 reg_val;
1316         err = kstrtou8_from_user(buffer, count, 0, &reg_val);
1317         if (err)
1318                 return err;
1319
1320         viafb_write_reg_mask(CR99, VIACR, reg_val, 0x0f);
1321         return count;
1322 }
1323
1324 static const struct file_operations viafb_dfpl_proc_fops = {
1325         .owner          = THIS_MODULE,
1326         .open           = viafb_dfpl_proc_open,
1327         .read           = seq_read,
1328         .llseek         = seq_lseek,
1329         .release        = single_release,
1330         .write          = viafb_dfpl_proc_write,
1331 };
1332
1333 static int viafb_vt1636_proc_show(struct seq_file *m, void *v)
1334 {
1335         u8 vt1636_08 = 0, vt1636_09 = 0;
1336         switch (viaparinfo->chip_info->lvds_chip_info.lvds_chip_name) {
1337         case VT1636_LVDS:
1338                 vt1636_08 =
1339                     viafb_gpio_i2c_read_lvds(viaparinfo->lvds_setting_info,
1340                     &viaparinfo->chip_info->lvds_chip_info, 0x08) & 0x0f;
1341                 vt1636_09 =
1342                     viafb_gpio_i2c_read_lvds(viaparinfo->lvds_setting_info,
1343                     &viaparinfo->chip_info->lvds_chip_info, 0x09) & 0x1f;
1344                 seq_printf(m, "%x %x\n", vt1636_08, vt1636_09);
1345                 break;
1346         default:
1347                 break;
1348         }
1349         switch (viaparinfo->chip_info->lvds_chip_info2.lvds_chip_name) {
1350         case VT1636_LVDS:
1351                 vt1636_08 =
1352                     viafb_gpio_i2c_read_lvds(viaparinfo->lvds_setting_info2,
1353                         &viaparinfo->chip_info->lvds_chip_info2, 0x08) & 0x0f;
1354                 vt1636_09 =
1355                     viafb_gpio_i2c_read_lvds(viaparinfo->lvds_setting_info2,
1356                         &viaparinfo->chip_info->lvds_chip_info2, 0x09) & 0x1f;
1357                 seq_printf(m, " %x %x\n", vt1636_08, vt1636_09);
1358                 break;
1359         default:
1360                 break;
1361         }
1362         return 0;
1363 }
1364
1365 static int viafb_vt1636_proc_open(struct inode *inode, struct file *file)
1366 {
1367         return single_open(file, viafb_vt1636_proc_show, NULL);
1368 }
1369
1370 static ssize_t viafb_vt1636_proc_write(struct file *file,
1371         const char __user *buffer, size_t count, loff_t *pos)
1372 {
1373         char buf[30], *value, *pbuf;
1374         struct IODATA reg_val;
1375         unsigned long length, i;
1376         if (count < 1)
1377                 return -EINVAL;
1378         length = count > 30 ? 30 : count;
1379         if (copy_from_user(&buf[0], buffer, length))
1380                 return -EFAULT;
1381         buf[length - 1] = '\0'; /*Ensure end string */
1382         pbuf = &buf[0];
1383         switch (viaparinfo->chip_info->lvds_chip_info.lvds_chip_name) {
1384         case VT1636_LVDS:
1385                 for (i = 0; i < 2; i++) {
1386                         value = strsep(&pbuf, " ");
1387                         if (value != NULL) {
1388                                 if (kstrtou8(value, 0, &reg_val.Data) < 0)
1389                                         return -EINVAL;
1390                                 switch (i) {
1391                                 case 0:
1392                                         reg_val.Index = 0x08;
1393                                         reg_val.Mask = 0x0f;
1394                                         viafb_gpio_i2c_write_mask_lvds
1395                                             (viaparinfo->lvds_setting_info,
1396                                             &viaparinfo->
1397                                             chip_info->lvds_chip_info,
1398                                              reg_val);
1399                                         break;
1400                                 case 1:
1401                                         reg_val.Index = 0x09;
1402                                         reg_val.Mask = 0x1f;
1403                                         viafb_gpio_i2c_write_mask_lvds
1404                                             (viaparinfo->lvds_setting_info,
1405                                             &viaparinfo->
1406                                             chip_info->lvds_chip_info,
1407                                              reg_val);
1408                                         break;
1409                                 default:
1410                                         break;
1411                                 }
1412                         } else {
1413                                 break;
1414                         }
1415                 }
1416                 break;
1417         default:
1418                 break;
1419         }
1420         switch (viaparinfo->chip_info->lvds_chip_info2.lvds_chip_name) {
1421         case VT1636_LVDS:
1422                 for (i = 0; i < 2; i++) {
1423                         value = strsep(&pbuf, " ");
1424                         if (value != NULL) {
1425                                 if (kstrtou8(value, 0, &reg_val.Data) < 0)
1426                                         return -EINVAL;
1427                                 switch (i) {
1428                                 case 0:
1429                                         reg_val.Index = 0x08;
1430                                         reg_val.Mask = 0x0f;
1431                                         viafb_gpio_i2c_write_mask_lvds
1432                                             (viaparinfo->lvds_setting_info2,
1433                                             &viaparinfo->
1434                                             chip_info->lvds_chip_info2,
1435                                              reg_val);
1436                                         break;
1437                                 case 1:
1438                                         reg_val.Index = 0x09;
1439                                         reg_val.Mask = 0x1f;
1440                                         viafb_gpio_i2c_write_mask_lvds
1441                                             (viaparinfo->lvds_setting_info2,
1442                                             &viaparinfo->
1443                                             chip_info->lvds_chip_info2,
1444                                              reg_val);
1445                                         break;
1446                                 default:
1447                                         break;
1448                                 }
1449                         } else {
1450                                 break;
1451                         }
1452                 }
1453                 break;
1454         default:
1455                 break;
1456         }
1457         return count;
1458 }
1459
1460 static const struct file_operations viafb_vt1636_proc_fops = {
1461         .owner          = THIS_MODULE,
1462         .open           = viafb_vt1636_proc_open,
1463         .read           = seq_read,
1464         .llseek         = seq_lseek,
1465         .release        = single_release,
1466         .write          = viafb_vt1636_proc_write,
1467 };
1468
1469 #endif /* CONFIG_FB_VIA_DIRECT_PROCFS */
1470
1471 static int viafb_sup_odev_proc_show(struct seq_file *m, void *v)
1472 {
1473         via_odev_to_seq(m, supported_odev_map[
1474                 viaparinfo->shared->chip_info.gfx_chip_name]);
1475         return 0;
1476 }
1477
1478 static int viafb_sup_odev_proc_open(struct inode *inode, struct file *file)
1479 {
1480         return single_open(file, viafb_sup_odev_proc_show, NULL);
1481 }
1482
1483 static const struct file_operations viafb_sup_odev_proc_fops = {
1484         .owner          = THIS_MODULE,
1485         .open           = viafb_sup_odev_proc_open,
1486         .read           = seq_read,
1487         .llseek         = seq_lseek,
1488         .release        = single_release,
1489 };
1490
1491 static ssize_t odev_update(const char __user *buffer, size_t count, u32 *odev)
1492 {
1493         char buf[64], *ptr = buf;
1494         u32 devices;
1495         bool add, sub;
1496
1497         if (count < 1 || count > 63)
1498                 return -EINVAL;
1499         if (copy_from_user(&buf[0], buffer, count))
1500                 return -EFAULT;
1501         buf[count] = '\0';
1502         add = buf[0] == '+';
1503         sub = buf[0] == '-';
1504         if (add || sub)
1505                 ptr++;
1506         devices = via_parse_odev(ptr, &ptr);
1507         if (*ptr == '\n')
1508                 ptr++;
1509         if (*ptr != 0)
1510                 return -EINVAL;
1511         if (add)
1512                 *odev |= devices;
1513         else if (sub)
1514                 *odev &= ~devices;
1515         else
1516                 *odev = devices;
1517         return count;
1518 }
1519
1520 static int viafb_iga1_odev_proc_show(struct seq_file *m, void *v)
1521 {
1522         via_odev_to_seq(m, viaparinfo->shared->iga1_devices);
1523         return 0;
1524 }
1525
1526 static int viafb_iga1_odev_proc_open(struct inode *inode, struct file *file)
1527 {
1528         return single_open(file, viafb_iga1_odev_proc_show, NULL);
1529 }
1530
1531 static ssize_t viafb_iga1_odev_proc_write(struct file *file,
1532         const char __user *buffer, size_t count, loff_t *pos)
1533 {
1534         u32 dev_on, dev_off, dev_old, dev_new;
1535         ssize_t res;
1536
1537         dev_old = dev_new = viaparinfo->shared->iga1_devices;
1538         res = odev_update(buffer, count, &dev_new);
1539         if (res != count)
1540                 return res;
1541         dev_off = dev_old & ~dev_new;
1542         dev_on = dev_new & ~dev_old;
1543         viaparinfo->shared->iga1_devices = dev_new;
1544         viaparinfo->shared->iga2_devices &= ~dev_new;
1545         via_set_state(dev_off, VIA_STATE_OFF);
1546         via_set_source(dev_new, IGA1);
1547         via_set_state(dev_on, VIA_STATE_ON);
1548         return res;
1549 }
1550
1551 static const struct file_operations viafb_iga1_odev_proc_fops = {
1552         .owner          = THIS_MODULE,
1553         .open           = viafb_iga1_odev_proc_open,
1554         .read           = seq_read,
1555         .llseek         = seq_lseek,
1556         .release        = single_release,
1557         .write          = viafb_iga1_odev_proc_write,
1558 };
1559
1560 static int viafb_iga2_odev_proc_show(struct seq_file *m, void *v)
1561 {
1562         via_odev_to_seq(m, viaparinfo->shared->iga2_devices);
1563         return 0;
1564 }
1565
1566 static int viafb_iga2_odev_proc_open(struct inode *inode, struct file *file)
1567 {
1568         return single_open(file, viafb_iga2_odev_proc_show, NULL);
1569 }
1570
1571 static ssize_t viafb_iga2_odev_proc_write(struct file *file,
1572         const char __user *buffer, size_t count, loff_t *pos)
1573 {
1574         u32 dev_on, dev_off, dev_old, dev_new;
1575         ssize_t res;
1576
1577         dev_old = dev_new = viaparinfo->shared->iga2_devices;
1578         res = odev_update(buffer, count, &dev_new);
1579         if (res != count)
1580                 return res;
1581         dev_off = dev_old & ~dev_new;
1582         dev_on = dev_new & ~dev_old;
1583         viaparinfo->shared->iga2_devices = dev_new;
1584         viaparinfo->shared->iga1_devices &= ~dev_new;
1585         via_set_state(dev_off, VIA_STATE_OFF);
1586         via_set_source(dev_new, IGA2);
1587         via_set_state(dev_on, VIA_STATE_ON);
1588         return res;
1589 }
1590
1591 static const struct file_operations viafb_iga2_odev_proc_fops = {
1592         .owner          = THIS_MODULE,
1593         .open           = viafb_iga2_odev_proc_open,
1594         .read           = seq_read,
1595         .llseek         = seq_lseek,
1596         .release        = single_release,
1597         .write          = viafb_iga2_odev_proc_write,
1598 };
1599
1600 #define IS_VT1636(lvds_chip)    ((lvds_chip).lvds_chip_name == VT1636_LVDS)
1601 static void viafb_init_proc(struct viafb_shared *shared)
1602 {
1603         struct proc_dir_entry *iga1_entry, *iga2_entry,
1604                 *viafb_entry = proc_mkdir("viafb", NULL);
1605
1606         shared->proc_entry = viafb_entry;
1607         if (viafb_entry) {
1608 #ifdef CONFIG_FB_VIA_DIRECT_PROCFS
1609                 proc_create("dvp0", 0, viafb_entry, &viafb_dvp0_proc_fops);
1610                 proc_create("dvp1", 0, viafb_entry, &viafb_dvp1_proc_fops);
1611                 proc_create("dfph", 0, viafb_entry, &viafb_dfph_proc_fops);
1612                 proc_create("dfpl", 0, viafb_entry, &viafb_dfpl_proc_fops);
1613                 if (IS_VT1636(shared->chip_info.lvds_chip_info)
1614                         || IS_VT1636(shared->chip_info.lvds_chip_info2))
1615                         proc_create("vt1636", 0, viafb_entry,
1616                                 &viafb_vt1636_proc_fops);
1617 #endif /* CONFIG_FB_VIA_DIRECT_PROCFS */
1618
1619                 proc_create("supported_output_devices", 0, viafb_entry,
1620                         &viafb_sup_odev_proc_fops);
1621                 iga1_entry = proc_mkdir("iga1", viafb_entry);
1622                 shared->iga1_proc_entry = iga1_entry;
1623                 proc_create("output_devices", 0, iga1_entry,
1624                         &viafb_iga1_odev_proc_fops);
1625                 iga2_entry = proc_mkdir("iga2", viafb_entry);
1626                 shared->iga2_proc_entry = iga2_entry;
1627                 proc_create("output_devices", 0, iga2_entry,
1628                         &viafb_iga2_odev_proc_fops);
1629         }
1630 }
1631 static void viafb_remove_proc(struct viafb_shared *shared)
1632 {
1633         struct proc_dir_entry *viafb_entry = shared->proc_entry;
1634
1635         if (!viafb_entry)
1636                 return;
1637
1638         remove_proc_entry("output_devices", shared->iga2_proc_entry);
1639         remove_proc_entry("iga2", viafb_entry);
1640         remove_proc_entry("output_devices", shared->iga1_proc_entry);
1641         remove_proc_entry("iga1", viafb_entry);
1642         remove_proc_entry("supported_output_devices", viafb_entry);
1643
1644 #ifdef CONFIG_FB_VIA_DIRECT_PROCFS
1645         remove_proc_entry("dvp0", viafb_entry);/* parent dir */
1646         remove_proc_entry("dvp1", viafb_entry);
1647         remove_proc_entry("dfph", viafb_entry);
1648         remove_proc_entry("dfpl", viafb_entry);
1649         if (IS_VT1636(shared->chip_info.lvds_chip_info)
1650                 || IS_VT1636(shared->chip_info.lvds_chip_info2))
1651                 remove_proc_entry("vt1636", viafb_entry);
1652 #endif /* CONFIG_FB_VIA_DIRECT_PROCFS */
1653
1654         remove_proc_entry("viafb", NULL);
1655 }
1656 #undef IS_VT1636
1657
1658 static int parse_mode(const char *str, u32 devices, u32 *xres, u32 *yres)
1659 {
1660         const struct fb_videomode *mode = NULL;
1661         char *ptr;
1662
1663         if (!str) {
1664                 if (devices == VIA_CRT)
1665                         mode = via_aux_get_preferred_mode(
1666                                 viaparinfo->shared->i2c_26);
1667                 else if (devices == VIA_DVP1)
1668                         mode = via_aux_get_preferred_mode(
1669                                 viaparinfo->shared->i2c_31);
1670
1671                 if (mode) {
1672                         *xres = mode->xres;
1673                         *yres = mode->yres;
1674                 } else if (machine_is_olpc()) {
1675                         *xres = 1200;
1676                         *yres = 900;
1677                 } else {
1678                         *xres = 640;
1679                         *yres = 480;
1680                 }
1681                 return 0;
1682         }
1683
1684         *xres = simple_strtoul(str, &ptr, 10);
1685         if (ptr[0] != 'x')
1686                 return -EINVAL;
1687
1688         *yres = simple_strtoul(&ptr[1], &ptr, 10);
1689         if (ptr[0])
1690                 return -EINVAL;
1691
1692         return 0;
1693 }
1694
1695
1696 #ifdef CONFIG_PM
1697 static int viafb_suspend(void *unused)
1698 {
1699         console_lock();
1700         fb_set_suspend(viafbinfo, 1);
1701         viafb_sync(viafbinfo);
1702         console_unlock();
1703
1704         return 0;
1705 }
1706
1707 static int viafb_resume(void *unused)
1708 {
1709         console_lock();
1710         if (viaparinfo->shared->vdev->engine_mmio)
1711                 viafb_reset_engine(viaparinfo);
1712         viafb_set_par(viafbinfo);
1713         if (viafb_dual_fb)
1714                 viafb_set_par(viafbinfo1);
1715         fb_set_suspend(viafbinfo, 0);
1716
1717         console_unlock();
1718         return 0;
1719 }
1720
1721 static struct viafb_pm_hooks viafb_fb_pm_hooks = {
1722         .suspend = viafb_suspend,
1723         .resume = viafb_resume
1724 };
1725
1726 #endif
1727
1728 static void i2c_bus_probe(struct viafb_shared *shared)
1729 {
1730         /* should be always CRT */
1731         printk(KERN_INFO "viafb: Probing I2C bus 0x26\n");
1732         shared->i2c_26 = via_aux_probe(viafb_find_i2c_adapter(VIA_PORT_26));
1733
1734         /* seems to be usually DVP1 */
1735         printk(KERN_INFO "viafb: Probing I2C bus 0x31\n");
1736         shared->i2c_31 = via_aux_probe(viafb_find_i2c_adapter(VIA_PORT_31));
1737
1738         /* FIXME: what is this? */
1739         if (!machine_is_olpc()) {
1740                 printk(KERN_INFO "viafb: Probing I2C bus 0x2C\n");
1741                 shared->i2c_2C = via_aux_probe(viafb_find_i2c_adapter(VIA_PORT_2C));
1742         }
1743
1744         printk(KERN_INFO "viafb: Finished I2C bus probing");
1745 }
1746
1747 static void i2c_bus_free(struct viafb_shared *shared)
1748 {
1749         via_aux_free(shared->i2c_26);
1750         via_aux_free(shared->i2c_31);
1751         via_aux_free(shared->i2c_2C);
1752 }
1753
1754 int via_fb_pci_probe(struct viafb_dev *vdev)
1755 {
1756         u32 default_xres, default_yres;
1757         struct fb_var_screeninfo default_var;
1758         int rc;
1759         u32 viafb_par_length;
1760
1761         DEBUG_MSG(KERN_INFO "VIAFB PCI Probe!!\n");
1762         memset(&default_var, 0, sizeof(default_var));
1763         viafb_par_length = ALIGN(sizeof(struct viafb_par), BITS_PER_LONG/8);
1764
1765         /* Allocate fb_info and ***_par here, also including some other needed
1766          * variables
1767         */
1768         viafbinfo = framebuffer_alloc(viafb_par_length +
1769                 ALIGN(sizeof(struct viafb_shared), BITS_PER_LONG/8),
1770                 &vdev->pdev->dev);
1771         if (!viafbinfo) {
1772                 printk(KERN_ERR"Could not allocate memory for viafb_info.\n");
1773                 return -ENOMEM;
1774         }
1775
1776         viaparinfo = (struct viafb_par *)viafbinfo->par;
1777         viaparinfo->shared = viafbinfo->par + viafb_par_length;
1778         viaparinfo->shared->vdev = vdev;
1779         viaparinfo->vram_addr = 0;
1780         viaparinfo->tmds_setting_info = &viaparinfo->shared->tmds_setting_info;
1781         viaparinfo->lvds_setting_info = &viaparinfo->shared->lvds_setting_info;
1782         viaparinfo->lvds_setting_info2 =
1783                 &viaparinfo->shared->lvds_setting_info2;
1784         viaparinfo->chip_info = &viaparinfo->shared->chip_info;
1785
1786         i2c_bus_probe(viaparinfo->shared);
1787         if (viafb_dual_fb)
1788                 viafb_SAMM_ON = 1;
1789         parse_lcd_port();
1790         parse_dvi_port();
1791
1792         viafb_init_chip_info(vdev->chip_type);
1793         /*
1794          * The framebuffer will have been successfully mapped by
1795          * the core (or we'd not be here), but we still need to
1796          * set up our own accounting.
1797          */
1798         viaparinfo->fbmem = vdev->fbmem_start;
1799         viaparinfo->memsize = vdev->fbmem_len;
1800         viaparinfo->fbmem_free = viaparinfo->memsize;
1801         viaparinfo->fbmem_used = 0;
1802         viafbinfo->screen_base = vdev->fbmem;
1803
1804         viafbinfo->fix.mmio_start = vdev->engine_start;
1805         viafbinfo->fix.mmio_len = vdev->engine_len;
1806         viafbinfo->node = 0;
1807         viafbinfo->fbops = &viafb_ops;
1808         viafbinfo->flags = FBINFO_DEFAULT | FBINFO_HWACCEL_YPAN;
1809
1810         viafbinfo->pseudo_palette = pseudo_pal;
1811         if (viafb_accel && !viafb_setup_engine(viafbinfo)) {
1812                 viafbinfo->flags |= FBINFO_HWACCEL_COPYAREA |
1813                         FBINFO_HWACCEL_FILLRECT |  FBINFO_HWACCEL_IMAGEBLIT;
1814                 default_var.accel_flags = FB_ACCELF_TEXT;
1815         } else {
1816                 viafbinfo->flags |= FBINFO_HWACCEL_DISABLED;
1817                 default_var.accel_flags = 0;
1818         }
1819
1820         if (viafb_second_size && (viafb_second_size < 8)) {
1821                 viafb_second_offset = viaparinfo->fbmem_free -
1822                         viafb_second_size * 1024 * 1024;
1823         } else {
1824                 viafb_second_size = 8;
1825                 viafb_second_offset = viaparinfo->fbmem_free -
1826                         viafb_second_size * 1024 * 1024;
1827         }
1828
1829         parse_mode(viafb_mode, viaparinfo->shared->iga1_devices,
1830                 &default_xres, &default_yres);
1831         if (viafb_SAMM_ON == 1)
1832                 parse_mode(viafb_mode1, viaparinfo->shared->iga2_devices,
1833                         &viafb_second_xres, &viafb_second_yres);
1834
1835         default_var.xres = default_xres;
1836         default_var.yres = default_yres;
1837         default_var.xres_virtual = default_xres;
1838         default_var.yres_virtual = default_yres;
1839         default_var.bits_per_pixel = viafb_bpp;
1840         viafb_fill_var_timing_info(&default_var, viafb_get_best_mode(
1841                 default_var.xres, default_var.yres, viafb_refresh));
1842         viafb_setup_fixinfo(&viafbinfo->fix, viaparinfo);
1843         viafbinfo->var = default_var;
1844
1845         if (viafb_dual_fb) {
1846                 viafbinfo1 = framebuffer_alloc(viafb_par_length,
1847                                 &vdev->pdev->dev);
1848                 if (!viafbinfo1) {
1849                         printk(KERN_ERR
1850                         "allocate the second framebuffer struct error\n");
1851                         rc = -ENOMEM;
1852                         goto out_fb_release;
1853                 }
1854                 viaparinfo1 = viafbinfo1->par;
1855                 memcpy(viaparinfo1, viaparinfo, viafb_par_length);
1856                 viaparinfo1->vram_addr = viafb_second_offset;
1857                 viaparinfo1->memsize = viaparinfo->memsize -
1858                         viafb_second_offset;
1859                 viaparinfo->memsize = viafb_second_offset;
1860                 viaparinfo1->fbmem = viaparinfo->fbmem + viafb_second_offset;
1861
1862                 viaparinfo1->fbmem_used = viaparinfo->fbmem_used;
1863                 viaparinfo1->fbmem_free = viaparinfo1->memsize -
1864                         viaparinfo1->fbmem_used;
1865                 viaparinfo->fbmem_free = viaparinfo->memsize;
1866                 viaparinfo->fbmem_used = 0;
1867
1868                 viaparinfo->iga_path = IGA1;
1869                 viaparinfo1->iga_path = IGA2;
1870                 memcpy(viafbinfo1, viafbinfo, sizeof(struct fb_info));
1871                 viafbinfo1->par = viaparinfo1;
1872                 viafbinfo1->screen_base = viafbinfo->screen_base +
1873                         viafb_second_offset;
1874
1875                 default_var.xres = viafb_second_xres;
1876                 default_var.yres = viafb_second_yres;
1877                 default_var.xres_virtual = viafb_second_xres;
1878                 default_var.yres_virtual = viafb_second_yres;
1879                 default_var.bits_per_pixel = viafb_bpp1;
1880                 viafb_fill_var_timing_info(&default_var, viafb_get_best_mode(
1881                         default_var.xres, default_var.yres, viafb_refresh1));
1882
1883                 viafb_setup_fixinfo(&viafbinfo1->fix, viaparinfo1);
1884                 viafb_check_var(&default_var, viafbinfo1);
1885                 viafbinfo1->var = default_var;
1886                 viafb_update_fix(viafbinfo1);
1887                 viaparinfo1->depth = fb_get_color_depth(&viafbinfo1->var,
1888                         &viafbinfo1->fix);
1889         }
1890
1891         viafb_check_var(&viafbinfo->var, viafbinfo);
1892         viafb_update_fix(viafbinfo);
1893         viaparinfo->depth = fb_get_color_depth(&viafbinfo->var,
1894                 &viafbinfo->fix);
1895         default_var.activate = FB_ACTIVATE_NOW;
1896         rc = fb_alloc_cmap(&viafbinfo->cmap, 256, 0);
1897         if (rc)
1898                 goto out_fb1_release;
1899
1900         if (viafb_dual_fb && (viafb_primary_dev == LCD_Device)
1901             && (viaparinfo->chip_info->gfx_chip_name == UNICHROME_CLE266)) {
1902                 rc = register_framebuffer(viafbinfo1);
1903                 if (rc)
1904                         goto out_dealloc_cmap;
1905         }
1906         rc = register_framebuffer(viafbinfo);
1907         if (rc)
1908                 goto out_fb1_unreg_lcd_cle266;
1909
1910         if (viafb_dual_fb && ((viafb_primary_dev != LCD_Device)
1911                         || (viaparinfo->chip_info->gfx_chip_name !=
1912                         UNICHROME_CLE266))) {
1913                 rc = register_framebuffer(viafbinfo1);
1914                 if (rc)
1915                         goto out_fb_unreg;
1916         }
1917         DEBUG_MSG(KERN_INFO "fb%d: %s frame buffer device %dx%d-%dbpp\n",
1918                   viafbinfo->node, viafbinfo->fix.id, default_var.xres,
1919                   default_var.yres, default_var.bits_per_pixel);
1920
1921         viafb_init_proc(viaparinfo->shared);
1922         viafb_init_dac(IGA2);
1923
1924 #ifdef CONFIG_PM
1925         viafb_pm_register(&viafb_fb_pm_hooks);
1926 #endif
1927         return 0;
1928
1929 out_fb_unreg:
1930         unregister_framebuffer(viafbinfo);
1931 out_fb1_unreg_lcd_cle266:
1932         if (viafb_dual_fb && (viafb_primary_dev == LCD_Device)
1933             && (viaparinfo->chip_info->gfx_chip_name == UNICHROME_CLE266))
1934                 unregister_framebuffer(viafbinfo1);
1935 out_dealloc_cmap:
1936         fb_dealloc_cmap(&viafbinfo->cmap);
1937 out_fb1_release:
1938         framebuffer_release(viafbinfo1);
1939 out_fb_release:
1940         i2c_bus_free(viaparinfo->shared);
1941         framebuffer_release(viafbinfo);
1942         return rc;
1943 }
1944
1945 void via_fb_pci_remove(struct pci_dev *pdev)
1946 {
1947         DEBUG_MSG(KERN_INFO "via_pci_remove!\n");
1948         fb_dealloc_cmap(&viafbinfo->cmap);
1949         unregister_framebuffer(viafbinfo);
1950         if (viafb_dual_fb)
1951                 unregister_framebuffer(viafbinfo1);
1952         viafb_remove_proc(viaparinfo->shared);
1953         i2c_bus_free(viaparinfo->shared);
1954         framebuffer_release(viafbinfo);
1955         if (viafb_dual_fb)
1956                 framebuffer_release(viafbinfo1);
1957 }
1958
1959 #ifndef MODULE
1960 static int __init viafb_setup(void)
1961 {
1962         char *this_opt;
1963         char *options;
1964
1965         DEBUG_MSG(KERN_INFO "viafb_setup!\n");
1966
1967         if (fb_get_options("viafb", &options))
1968                 return -ENODEV;
1969
1970         if (!options || !*options)
1971                 return 0;
1972
1973         while ((this_opt = strsep(&options, ",")) != NULL) {
1974                 if (!*this_opt)
1975                         continue;
1976
1977                 if (!strncmp(this_opt, "viafb_mode1=", 12)) {
1978                         viafb_mode1 = kstrdup(this_opt + 12, GFP_KERNEL);
1979                 } else if (!strncmp(this_opt, "viafb_mode=", 11)) {
1980                         viafb_mode = kstrdup(this_opt + 11, GFP_KERNEL);
1981                 } else if (!strncmp(this_opt, "viafb_bpp1=", 11)) {
1982                         if (kstrtouint(this_opt + 11, 0, &viafb_bpp1) < 0)
1983                                 return -EINVAL;
1984                 } else if (!strncmp(this_opt, "viafb_bpp=", 10)) {
1985                         if (kstrtouint(this_opt + 10, 0, &viafb_bpp) < 0)
1986                                 return -EINVAL;
1987                 } else if (!strncmp(this_opt, "viafb_refresh1=", 15)) {
1988                         if (kstrtoint(this_opt + 15, 0, &viafb_refresh1) < 0)
1989                                 return -EINVAL;
1990                 } else if (!strncmp(this_opt, "viafb_refresh=", 14)) {
1991                         if (kstrtoint(this_opt + 14, 0, &viafb_refresh) < 0)
1992                                 return -EINVAL;
1993                 } else if (!strncmp(this_opt, "viafb_lcd_dsp_method=", 21)) {
1994                         if (kstrtoint(this_opt + 21, 0,
1995                                       &viafb_lcd_dsp_method) < 0)
1996                                 return -EINVAL;
1997                 } else if (!strncmp(this_opt, "viafb_lcd_panel_id=", 19)) {
1998                         if (kstrtoint(this_opt + 19, 0,
1999                                       &viafb_lcd_panel_id) < 0)
2000                                 return -EINVAL;
2001                 } else if (!strncmp(this_opt, "viafb_accel=", 12)) {
2002                         if (kstrtoint(this_opt + 12, 0, &viafb_accel) < 0)
2003                                 return -EINVAL;
2004                 } else if (!strncmp(this_opt, "viafb_SAMM_ON=", 14)) {
2005                         if (kstrtoint(this_opt + 14, 0, &viafb_SAMM_ON) < 0)
2006                                 return -EINVAL;
2007                 } else if (!strncmp(this_opt, "viafb_active_dev=", 17)) {
2008                         viafb_active_dev = kstrdup(this_opt + 17, GFP_KERNEL);
2009                 } else if (!strncmp(this_opt,
2010                         "viafb_display_hardware_layout=", 30)) {
2011                         if (kstrtoint(this_opt + 30, 0,
2012                                       &viafb_display_hardware_layout) < 0)
2013                                 return -EINVAL;
2014                 } else if (!strncmp(this_opt, "viafb_second_size=", 18)) {
2015                         if (kstrtoint(this_opt + 18, 0, &viafb_second_size) < 0)
2016                                 return -EINVAL;
2017                 } else if (!strncmp(this_opt,
2018                         "viafb_platform_epia_dvi=", 24)) {
2019                         if (kstrtoint(this_opt + 24, 0,
2020                                       &viafb_platform_epia_dvi) < 0)
2021                                 return -EINVAL;
2022                 } else if (!strncmp(this_opt,
2023                         "viafb_device_lcd_dualedge=", 26)) {
2024                         if (kstrtoint(this_opt + 26, 0,
2025                                       &viafb_device_lcd_dualedge) < 0)
2026                                 return -EINVAL;
2027                 } else if (!strncmp(this_opt, "viafb_bus_width=", 16)) {
2028                         if (kstrtoint(this_opt + 16, 0, &viafb_bus_width) < 0)
2029                                 return -EINVAL;
2030                 } else if (!strncmp(this_opt, "viafb_lcd_mode=", 15)) {
2031                         if (kstrtoint(this_opt + 15, 0, &viafb_lcd_mode) < 0)
2032                                 return -EINVAL;
2033                 } else if (!strncmp(this_opt, "viafb_lcd_port=", 15)) {
2034                         viafb_lcd_port = kstrdup(this_opt + 15, GFP_KERNEL);
2035                 } else if (!strncmp(this_opt, "viafb_dvi_port=", 15)) {
2036                         viafb_dvi_port = kstrdup(this_opt + 15, GFP_KERNEL);
2037                 }
2038         }
2039         return 0;
2040 }
2041 #endif
2042
2043 /*
2044  * These are called out of via-core for now.
2045  */
2046 int __init viafb_init(void)
2047 {
2048         u32 dummy_x, dummy_y;
2049         int r = 0;
2050
2051         if (machine_is_olpc())
2052                 /* Apply XO-1.5-specific configuration. */
2053                 viafb_lcd_panel_id = 23;
2054
2055 #ifndef MODULE
2056         r = viafb_setup();
2057         if (r < 0)
2058                 return r;
2059 #endif
2060         if (parse_mode(viafb_mode, 0, &dummy_x, &dummy_y)
2061                 || !viafb_get_best_mode(dummy_x, dummy_y, viafb_refresh)
2062                 || parse_mode(viafb_mode1, 0, &dummy_x, &dummy_y)
2063                 || !viafb_get_best_mode(dummy_x, dummy_y, viafb_refresh1)
2064                 || viafb_bpp < 0 || viafb_bpp > 32
2065                 || viafb_bpp1 < 0 || viafb_bpp1 > 32
2066                 || parse_active_dev())
2067                 return -EINVAL;
2068
2069         printk(KERN_INFO
2070        "VIA Graphics Integration Chipset framebuffer %d.%d initializing\n",
2071                VERSION_MAJOR, VERSION_MINOR);
2072         return r;
2073 }
2074
2075 void __exit viafb_exit(void)
2076 {
2077         DEBUG_MSG(KERN_INFO "viafb_exit!\n");
2078 }
2079
2080 static struct fb_ops viafb_ops = {
2081         .owner = THIS_MODULE,
2082         .fb_open = viafb_open,
2083         .fb_release = viafb_release,
2084         .fb_check_var = viafb_check_var,
2085         .fb_set_par = viafb_set_par,
2086         .fb_setcolreg = viafb_setcolreg,
2087         .fb_pan_display = viafb_pan_display,
2088         .fb_blank = viafb_blank,
2089         .fb_fillrect = viafb_fillrect,
2090         .fb_copyarea = viafb_copyarea,
2091         .fb_imageblit = viafb_imageblit,
2092         .fb_cursor = viafb_cursor,
2093         .fb_ioctl = viafb_ioctl,
2094         .fb_sync = viafb_sync,
2095 };
2096
2097
2098 #ifdef MODULE
2099 module_param(viafb_mode, charp, S_IRUSR);
2100 MODULE_PARM_DESC(viafb_mode, "Set resolution (default=640x480)");
2101
2102 module_param(viafb_mode1, charp, S_IRUSR);
2103 MODULE_PARM_DESC(viafb_mode1, "Set resolution (default=640x480)");
2104
2105 module_param(viafb_bpp, int, S_IRUSR);
2106 MODULE_PARM_DESC(viafb_bpp, "Set color depth (default=32bpp)");
2107
2108 module_param(viafb_bpp1, int, S_IRUSR);
2109 MODULE_PARM_DESC(viafb_bpp1, "Set color depth (default=32bpp)");
2110
2111 module_param(viafb_refresh, int, S_IRUSR);
2112 MODULE_PARM_DESC(viafb_refresh,
2113         "Set CRT viafb_refresh rate (default = 60)");
2114
2115 module_param(viafb_refresh1, int, S_IRUSR);
2116 MODULE_PARM_DESC(viafb_refresh1,
2117         "Set CRT refresh rate (default = 60)");
2118
2119 module_param(viafb_lcd_panel_id, int, S_IRUSR);
2120 MODULE_PARM_DESC(viafb_lcd_panel_id,
2121         "Set Flat Panel type(Default=1024x768)");
2122
2123 module_param(viafb_lcd_dsp_method, int, S_IRUSR);
2124 MODULE_PARM_DESC(viafb_lcd_dsp_method,
2125         "Set Flat Panel display scaling method.(Default=Expandsion)");
2126
2127 module_param(viafb_SAMM_ON, int, S_IRUSR);
2128 MODULE_PARM_DESC(viafb_SAMM_ON,
2129         "Turn on/off flag of SAMM(Default=OFF)");
2130
2131 module_param(viafb_accel, int, S_IRUSR);
2132 MODULE_PARM_DESC(viafb_accel,
2133         "Set 2D Hardware Acceleration: 0 = OFF, 1 = ON (default)");
2134
2135 module_param(viafb_active_dev, charp, S_IRUSR);
2136 MODULE_PARM_DESC(viafb_active_dev, "Specify active devices.");
2137
2138 module_param(viafb_display_hardware_layout, int, S_IRUSR);
2139 MODULE_PARM_DESC(viafb_display_hardware_layout,
2140         "Display Hardware Layout (LCD Only, DVI Only...,etc)");
2141
2142 module_param(viafb_second_size, int, S_IRUSR);
2143 MODULE_PARM_DESC(viafb_second_size,
2144         "Set secondary device memory size");
2145
2146 module_param(viafb_dual_fb, int, S_IRUSR);
2147 MODULE_PARM_DESC(viafb_dual_fb,
2148         "Turn on/off flag of dual framebuffer devices.(Default = OFF)");
2149
2150 module_param(viafb_platform_epia_dvi, int, S_IRUSR);
2151 MODULE_PARM_DESC(viafb_platform_epia_dvi,
2152         "Turn on/off flag of DVI devices on EPIA board.(Default = OFF)");
2153
2154 module_param(viafb_device_lcd_dualedge, int, S_IRUSR);
2155 MODULE_PARM_DESC(viafb_device_lcd_dualedge,
2156         "Turn on/off flag of dual edge panel.(Default = OFF)");
2157
2158 module_param(viafb_bus_width, int, S_IRUSR);
2159 MODULE_PARM_DESC(viafb_bus_width,
2160         "Set bus width of panel.(Default = 12)");
2161
2162 module_param(viafb_lcd_mode, int, S_IRUSR);
2163 MODULE_PARM_DESC(viafb_lcd_mode,
2164         "Set Flat Panel mode(Default=OPENLDI)");
2165
2166 module_param(viafb_lcd_port, charp, S_IRUSR);
2167 MODULE_PARM_DESC(viafb_lcd_port, "Specify LCD output port.");
2168
2169 module_param(viafb_dvi_port, charp, S_IRUSR);
2170 MODULE_PARM_DESC(viafb_dvi_port, "Specify DVI output port.");
2171
2172 MODULE_LICENSE("GPL");
2173 #endif