drivers/video/rockchip/hdmi/rk_hdmi_lcdc.c

   1 #include <linux/console.h>
   2 #include<linux/rk_fb.h>
   3 #include "rk_hdmi.h"
   4
   5 #define OUT_TYPE                SCREEN_HDMI
   6 #define OUT_FACE                OUT_P888
   7 #define DCLK_POL                1
   8 #define SWAP_RB                 0
   9 #define LCD_ACLK                800000000
  10
  11 static const struct fb_videomode hdmi_mode [] = {
  12         //name                  refresh         xres    yres    pixclock                h_bp    h_fp    v_bp    v_fp    h_pw    v_pw    polariry        PorI    flag(used for vic)
  13 //{     "640x480p@60Hz",                60,             640,    480,    25175000,       48,     16,     33,     10,     96,     2,      0,      0,      1       },
  14 //{     "720x480i@60Hz",                60,             720,    480,    27000000,       114,    38,     15,     4,      124,    3,      0,      1,      6       },
  15 //{     "720x576i@50Hz",                50,             720,    576,    27000000,       138,    24,     19,     2,      126,    3,      0,      1,      21      },
  16 {       "720x480p@60Hz",        60,             720,    480,    27000000,       60,     16,     30,     9,      62,     6,      0,      0,      2       },
  17 {       "720x576p@50Hz",        50,             720,    576,    27000000,       68,     12,     39,     5,      64,     5,      0,      0,      17      },
  18 //{     "1280x720p@24Hz",       24,             1280,   720,    59400000,       220,    1760,   20,     5,      40,     5,      FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,                   0,              60      },
  19 //{     "1280x720p@25Hz",       25,             1280,   720,    74250000,       220,    2420,   20,     5,      40,     5,      FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,                   0,              61      },
  20 //{     "1280x720p@30Hz",       30,             1280,   720,    74250000,       220,    1760,   20,     5,      40,     5,      FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,                   0,              62      },
  21 {       "1280x720p@50Hz",       50,             1280,   720,    74250000,       220,    440,    20,     5,      40,     5,      FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,                   0,              19      },
  22 {       "1280x720p@60Hz",       60,             1280,   720,    74250000,       220,    110,    20,     5,      40,     5,      FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,                   0,              4       },
  23 //{     "1920x1080p@24Hz",      24,             1920,   1080,   74250000,       148,    638,    36,     4,      44,     5,      FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,                   0,              32      },
  24 //{     "1920x1080p@25Hz",      25,             1920,   1080,   74250000,       148,    528,    36,     4,      44,     5,      FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,                   0,              33      },
  25 //{     "1920x1080p@30Hz",      30,             1920,   1080,   74250000,       148,    88,     36,     4,      44,     5,      FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,                   0,              34      },
  26 //{     "1920x1080i@50Hz_2",    50,             1920,   1080,   72000000,       184,    32,     57,     23,     168,    5,      FB_SYNC_HOR_HIGH_ACT,                   1,              39      },
  27 //{     "1920x1080i@50Hz",      50,             1920,   1080,   74250000,       148,    528,    15,     2,      44,     5,      FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,                   1,              20      },
  28 //{     "1920x1080i@60Hz",      60,             1920,   1080,   74250000,       148,    88,     15,     2,      44,     5,      FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,                   1,              5       },
  29 {       "1920x1080p@50Hz",      50,             1920,   1080,   148500000,      148,    528,    36,     4,      44,     5,      FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,                   0,              31      },
  30 {       "1920x1080p@60Hz",      60,             1920,   1080,   148500000,      148,    88,     36,     4,      44,     5,      FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,                   0,              16      },
  31 /*
  32 {       "1440x288p@50Hz",       50,             720,    480,    27000000,       138,    24,     19,     2,      126,    3,              0,                      0,              23      },
  33 {       "2880x576i@50Hz",       50,             1440,   240,    54000000,       276,    48,     19,     2,      252,    3,              0,                      1,              25      },
  34 {       "2880x288p@50Hz",       50,             2880,   480,    54000000,       276,    48,     19,     3,      252,    3,              0,                      0,              27      },
  35 {       "1440x576p@50Hz",       50,             2880,   480,    54000000,       136,    24,     39,     5,      128,    5,              0,                      0,              29      },
  36 {       "2880x576p@50Hz",       50,             1920,   1080,   108000000,      272,    48,     39,     5,      256,    5,              0,                      0,              37      },
  37 {       "1440x240p@60Hz",       60,             1440,   240,    27000000,       114,    38,     15,     4,      124,    3,              0,                      0,              8       },
  38 {       "2880x480i@60Hz",       60,             2880,   480,    54000000,       228,    76,     15,     4,      248,    3,              0,                      1,              10      },
  39 {       "2880x480p@60Hz",       60,             2880,   480,    54000000,       228,    76,     15,     4,      248,    3,              0,                      0,              12      },
  40 {       "1440x480p@60Hz",       60,             1440,   480,    54000000,       120,    32,     30,     9,      124,    6,              0,                      0,              14      },
  41 {       "2880x480p@60Hz",       60,             2880,   480,    54000000,       240,    64,     30,     9,      248,    6,              0,                      0,              35      },
  42
  43 {       "1920x1080i@100Hz",     100,            1920,   1080,   148500000,      148,    528,    15,     2,      44,     5,              1,                      1,              40      },
  44 {       "1280x720p@100Hz",      100,            1280,   720,    148500000,      220,    440,    20,     5,      40,     5,              1,                      0,              41      },
  45 {       "720x576p@100Hz",       100,            720,    576,    54000000,       68,             12,     39,     5,      64,             5,              0,                      0,              42      },
  46 {       "1440x576i@100Hz",      100,            1440,   576,    54000000,       138,    24,     19,     2,      12,     3,              0,                      1,              44      },
  47 {       "1920x1080p@100Hz",     100,            1920,   1080,   297000000,      148,    528,    36,     4,      44,     5,              1,                      0,              64      },
  48
  49 {       "1920x1080i@120Hz",     120,            1920,   1080,   148500000,      148,    88,     15,     2,      44,     5,              1,                      1,              46      },
  50 {       "1280x720p@120Hz",      120,            1280,   720,    148500000,      220,    110,    20,     5,      40,     5,              1,                      0,              47      },
  51 {       "720x480p@120Hz",       120,            720,    480,    54000000,       60,             16,     30,     9,      62,             6,              0,                      0,              48      },
  52 {       "1440x480i@120Hz",      120,            1440,   480,    54000000,       114,    38,     15,     4,      12,     3,              0,                      1,              50      },
  53 {       "1920x1080p@120Hz",     120,            1920,   1080,   297000000,      148,    88,     36,     4,      44,     5,              1,                      0,              63      },
  54
  55 {       "720x576p@200Hz",       200,            720,    576,    108000000,      68,     12,     39,     5,      64,     5,              0,                      0,              52      },
  56 {       "1440x576i@200Hz",      200,            1920,   1080,   108000000,      138,    24,     19,     2,      12,     3,              0,                      1,              54      },
  57
  58 {       "720x480p@240Hz",       240,            720,    480,    108000000,      60,     16,     30,     9,      62,     6,              0,                      0,              56      },
  59 {       "1440x480i@240Hz",      240,            1440,   480,    108000000,      114,    38,     15,     4,      12,     3,              0,                      1,              58      },
  60 */
  61
  62 };
  63
  64 void hdmi_init_lcdc(struct rk29fb_screen *screen, struct rk29lcd_info *lcd_info)
  65 {
  66         hdmi_set_info(screen, HDMI_VIDEO_DEFAULT_MODE);
  67 }
  68
  69 int hdmi_set_info(struct rk29fb_screen *screen, unsigned int vic)
  70 {
  71     int i;
  72
  73     if(screen == NULL)
  74         return -1;
  75
  76     if(vic == 0)
  77         vic = HDMI_VIDEO_DEFAULT_MODE;
  78
  79     for(i = 0; i < ARRAY_SIZE(hdmi_mode); i++)
  80     {
  81         if(hdmi_mode[i].flag == vic)
  82                 break;
  83     }
  84     if(i == ARRAY_SIZE(hdmi_mode))
  85         return -1;
  86
  87     memset(screen, 0, sizeof(struct rk29fb_screen));
  88
  89     /* screen type & face */
  90     screen->type = OUT_TYPE;
  91     screen->face = OUT_FACE;
  92
  93     /* Screen size */
  94     screen->x_res = hdmi_mode[i].xres;
  95     screen->y_res = hdmi_mode[i].yres;
  96
  97     /* Timing */
  98     screen->pixclock = hdmi_mode[i].pixclock;
  99     screen->fps = hdmi_mode[i].refresh;
 100         screen->lcdc_aclk = LCD_ACLK;
 101         screen->left_margin = hdmi_mode[i].left_margin;
 102         screen->right_margin = hdmi_mode[i].right_margin;
 103         screen->hsync_len = hdmi_mode[i].hsync_len;
 104         screen->upper_margin = hdmi_mode[i].upper_margin;
 105         screen->lower_margin = hdmi_mode[i].lower_margin;
 106         screen->vsync_len = hdmi_mode[i].vsync_len;
 107         screen->hdmi_resolution = hdmi_mode[i].flag;
 108
 109         /* Pin polarity */
 110         if(FB_SYNC_HOR_HIGH_ACT & hdmi_mode[i].sync)
 111                 screen->pin_hsync = 1;
 112         else
 113                 screen->pin_hsync = 0;
 114         if(FB_SYNC_VERT_HIGH_ACT & hdmi_mode[i].sync)
 115                 screen->pin_vsync = 1;
 116         else
 117                 screen->pin_vsync = 0;
 118         screen->pin_den = 0;
 119         screen->pin_dclk = DCLK_POL;
 120
 121         /* Swap rule */
 122     screen->swap_rb = SWAP_RB;
 123     screen->swap_rg = 0;
 124     screen->swap_gb = 0;
 125     screen->swap_delta = 0;
 126     screen->swap_dumy = 0;
 127
 128     /* Operation function*/
 129     screen->init = NULL;
 130     screen->standby = NULL;
 131
 132     return 0;
 133 }
 134
 135 static void hdmi_show_sink_info(struct hdmi *hdmi)
 136 {
 137         struct list_head *pos, *head = &hdmi->edid.modelist;
 138         struct fb_modelist *modelist;
 139         struct fb_videomode *m;
 140         int i;
 141         struct hdmi_audio *audio;
 142
 143         hdmi_dbg(hdmi->dev, "******** Show Sink Info ********\n");
 144         hdmi_dbg(hdmi->dev, "Support video mode: \n");
 145         list_for_each(pos, head) {
 146                 modelist = list_entry(pos, struct fb_modelist, list);
 147                 m = &modelist->mode;
 148                 hdmi_dbg(hdmi->dev, "   %s.\n", m->name);
 149         }
 150
 151         for(i = 0; i < hdmi->edid.audio_num; i++)
 152         {
 153                 audio = &(hdmi->edid.audio[i]);
 154                 switch(audio->type)
 155                 {
 156                         case HDMI_AUDIO_LPCM:
 157                                 hdmi_dbg(hdmi->dev, "Support audio type: LPCM\n");
 158                                 break;
 159                         case HDMI_AUDIO_AC3:
 160                                 hdmi_dbg(hdmi->dev, "Support audio type: AC3\n");
 161                                 break;
 162                         case HDMI_AUDIO_MPEG1:
 163                                 hdmi_dbg(hdmi->dev, "Support audio type: MPEG1\n");
 164                                 break;
 165                         case HDMI_AUDIO_MP3:
 166                                 hdmi_dbg(hdmi->dev, "Support audio type: MP3\n");
 167                                 break;
 168                         case HDMI_AUDIO_MPEG2:
 169                                 hdmi_dbg(hdmi->dev, "Support audio type: MPEG2\n");
 170                                 break;
 171                         case HDMI_AUDIO_AAC_LC:
 172                                 hdmi_dbg(hdmi->dev, "Support audio type: AAC\n");
 173                                 break;
 174                         case HDMI_AUDIO_DTS:
 175                                 hdmi_dbg(hdmi->dev, "Support audio type: DTS\n");
 176                                 break;
 177                         case HDMI_AUDIO_ATARC:
 178                                 hdmi_dbg(hdmi->dev, "Support audio type: ATARC\n");
 179                                 break;
 180                         case HDMI_AUDIO_DSD:
 181                                 hdmi_dbg(hdmi->dev, "Support audio type: DSD\n");
 182                                 break;
 183                         case HDMI_AUDIO_E_AC3:
 184                                 hdmi_dbg(hdmi->dev, "Support audio type: E-AC3\n");
 185                                 break;
 186                         case HDMI_AUDIO_DTS_HD:
 187                                 hdmi_dbg(hdmi->dev, "Support audio type: DTS-HD\n");
 188                                 break;
 189                         case HDMI_AUDIO_MLP:
 190                                 hdmi_dbg(hdmi->dev, "Support audio type: MLP\n");
 191                                 break;
 192                         case HDMI_AUDIO_DST:
 193                                 hdmi_dbg(hdmi->dev, "Support audio type: DST\n");
 194                                 break;
 195                         case HDMI_AUDIO_WMA_PRO:
 196                                 hdmi_dbg(hdmi->dev, "Support audio type: WMP-PRO\n");
 197                                 break;
 198                         default:
 199                                 hdmi_dbg(hdmi->dev, "Support audio type: Unkown\n");
 200                                 break;
 201                 }
 202
 203                 hdmi_dbg(hdmi->dev, "Support audio sample rate: \n");
 204                 if(audio->rate & HDMI_AUDIO_FS_32000)
 205                         hdmi_dbg(hdmi->dev, "   32000\n");
 206                 if(audio->rate & HDMI_AUDIO_FS_44100)
 207                         hdmi_dbg(hdmi->dev, "   44100\n");
 208                 if(audio->rate & HDMI_AUDIO_FS_48000)
 209                         hdmi_dbg(hdmi->dev, "   48000\n");
 210                 if(audio->rate & HDMI_AUDIO_FS_88200)
 211                         hdmi_dbg(hdmi->dev, "   88200\n");
 212                 if(audio->rate & HDMI_AUDIO_FS_96000)
 213                         hdmi_dbg(hdmi->dev, "   96000\n");
 214                 if(audio->rate & HDMI_AUDIO_FS_176400)
 215                         hdmi_dbg(hdmi->dev, "   176400\n");
 216                 if(audio->rate & HDMI_AUDIO_FS_192000)
 217                         hdmi_dbg(hdmi->dev, "   192000\n");
 218
 219                 hdmi_dbg(hdmi->dev, "Support audio word lenght: \n");
 220                 if(audio->rate & HDMI_AUDIO_WORD_LENGTH_16bit)
 221                         hdmi_dbg(hdmi->dev, "   16bit\n");
 222                 if(audio->rate & HDMI_AUDIO_WORD_LENGTH_20bit)
 223                         hdmi_dbg(hdmi->dev, "   20bit\n");
 224                 if(audio->rate & HDMI_AUDIO_WORD_LENGTH_24bit)
 225                         hdmi_dbg(hdmi->dev, "   24bit\n");
 226         }
 227         hdmi_dbg(hdmi->dev, "******** Show Sink Info ********\n");
 228 }
 229
 230 /**
 231  * hdmi_ouputmode_select - select hdmi transmitter output mode: hdmi or dvi?
 232  * @hdmi: handle of hdmi
 233  * @edid_ok: get EDID data success or not, HDMI_ERROR_SUCESS means success.
 234  */
 235 int hdmi_ouputmode_select(struct hdmi *hdmi, int edid_ok)
 236 {
 237         struct list_head *head = &hdmi->edid.modelist;
 238         struct fb_monspecs      *specs = hdmi->edid.specs;
 239         struct fb_videomode *modedb = NULL;
 240         int i, pixclock;
 241
 242         if(edid_ok != HDMI_ERROR_SUCESS) {
 243                 dev_err(hdmi->dev, "warning: EDID error, assume sink as HDMI !!!!");
 244                 hdmi->edid.sink_hdmi = 1;
 245         }
 246
 247         if(edid_ok != HDMI_ERROR_SUCESS) {
 248                 hdmi->edid.ycbcr444 = 0;
 249                 hdmi->edid.ycbcr422 = 0;
 250                 hdmi->autoconfig = HDMI_DISABLE;
 251         }
 252         if(head->next == head) {
 253                 dev_info(hdmi->dev, "warning: no CEA video mode parsed from EDID !!!!");
 254                 // If EDID get error, list all system supported mode.
 255                 // If output mode is set to DVI and EDID is ok, check
 256                 // the output timing.
 257
 258                 if(hdmi->edid.sink_hdmi == 0 && specs && specs->modedb_len) {
 259                         /* Get max resolution timing */
 260                         modedb = &specs->modedb[0];
 261                         for (i = 0; i < specs->modedb_len; i++) {
 262                                 if(specs->modedb[i].xres > modedb->xres)
 263                                         modedb = &specs->modedb[i];
 264                                 else if(specs->modedb[i].yres > modedb->yres)
 265                                         modedb = &specs->modedb[i];
 266                         }
 267                         // For some monitor, the max pixclock read from EDID is smaller
 268                         // than the clock of max resolution mode supported. We fix it.
 269                         pixclock = PICOS2KHZ(modedb->pixclock);
 270                         pixclock /= 250;
 271                         pixclock *= 250;
 272                         pixclock *= 1000;
 273                         if(pixclock == 148250000)
 274                                 pixclock = 148500000;
 275                         if(pixclock > specs->dclkmax)
 276                                 specs->dclkmax = pixclock;
 277                 }
 278
 279                 for(i = 0; i < ARRAY_SIZE(hdmi_mode); i++) {
 280                         if(modedb) {
 281                                 if( (hdmi_mode[i].pixclock < specs->dclkmin) ||
 282                                         (hdmi_mode[i].pixclock > specs->dclkmax) ||
 283                                         (hdmi_mode[i].refresh < specs->vfmin) ||
 284                                         (hdmi_mode[i].refresh > specs->vfmax) ||
 285                                         (hdmi_mode[i].xres > modedb->xres) ||
 286                                         (hdmi_mode[i].yres > modedb->yres) )
 287                                 continue;
 288                         }
 289                         hdmi_add_videomode(&hdmi_mode[i], head);
 290                 }
 291         }
 292
 293         #ifdef HDMI_DEBUG
 294         hdmi_show_sink_info(hdmi);
 295         #endif
 296         return HDMI_ERROR_SUCESS;
 297 }
 298 /**
 299  * hdmi_videomode_compare - compare 2 videomodes
 300  * @mode1: first videomode
 301  * @mode2: second videomode
 302  *
 303  * RETURNS:
 304  * 1 if mode1 > mode2, 0 if mode1 = mode2, -1 mode1 < mode2
 305  */
 306 static int hdmi_videomode_compare(const struct fb_videomode *mode1,
 307                      const struct fb_videomode *mode2)
 308 {
 309         if(mode1->xres > mode2->xres)
 310                 return 1;
 311         else if(mode1->xres == mode2->xres)
 312         {
 313                 if(mode1->yres > mode2->yres)
 314                         return 1;
 315                 else if(mode1->yres == mode2->yres)
 316                 {
 317                         if(mode1->pixclock > mode2->pixclock)
 318                                 return 1;
 319                         else if(mode1->pixclock == mode2->pixclock)
 320                         {
 321                                 if(mode1->refresh > mode2->refresh)
 322                                         return 1;
 323                                 else if(mode1->refresh == mode2->refresh)
 324                                         return 0;
 325                         }
 326                 }
 327         }
 328         return -1;
 329 }
 330 /**
 331  * hdmi_add_videomode: adds videomode entry to modelist
 332  * @mode: videomode to add
 333  * @head: struct list_head of modelist
 334  *
 335  * NOTES:
 336  * Will only add unmatched mode entries
 337  */
 338 int hdmi_add_videomode(const struct fb_videomode *mode, struct list_head *head)
 339 {
 340         struct list_head *pos;
 341         struct fb_modelist *modelist, *modelist_new;
 342         struct fb_videomode *m;
 343         int i, found = 0;
 344
 345         for(i = 0; i < ARRAY_SIZE(hdmi_mode); i++)
 346     {
 347         m =(struct fb_videomode*) &hdmi_mode[i];
 348         if (fb_mode_is_equal(m, mode)) {
 349                         found = 1;
 350                         break;
 351                 }
 352     }
 353
 354         if (found) {
 355                 list_for_each(pos, head) {
 356                         modelist = list_entry(pos, struct fb_modelist, list);
 357                         m = &modelist->mode;
 358                         if (fb_mode_is_equal(m, mode)) {
 359                         // m == mode
 360                                 return 0;
 361                         }
 362                         else
 363                         {
 364                                 if(hdmi_videomode_compare(m, mode) == -1) {
 365                                         break;
 366                                 }
 367                         }
 368                 }
 369
 370                 modelist_new = kmalloc(sizeof(struct fb_modelist),
 371                                   GFP_KERNEL);
 372                 if (!modelist_new)
 373                         return -ENOMEM;
 374                 modelist_new->mode = hdmi_mode[i];
 375                 list_add_tail(&modelist_new->list, pos);
 376         }
 377
 378         return 0;
 379 }
 380
 381 /**
 382  * hdmi_videomode_to_vic: transverse video mode to vic
 383  * @vmode: videomode to transverse
 384  *
 385  */
 386 int hdmi_videomode_to_vic(struct fb_videomode *vmode)
 387 {
 388         unsigned char vic = 0;
 389         int i = 0;
 390
 391         for(i = 0; i < ARRAY_SIZE(hdmi_mode); i++)
 392         {
 393                 if(     vmode->vmode == hdmi_mode[i].vmode &&
 394                         vmode->refresh == hdmi_mode[i].refresh &&
 395                         vmode->xres == hdmi_mode[i].xres &&
 396                         vmode->left_margin == hdmi_mode[i].left_margin &&
 397                         vmode->right_margin == hdmi_mode[i].right_margin &&
 398                         vmode->upper_margin == hdmi_mode[i].upper_margin &&
 399                         vmode->lower_margin == hdmi_mode[i].lower_margin &&
 400                         vmode->hsync_len == hdmi_mode[i].hsync_len &&
 401                         vmode->vsync_len == hdmi_mode[i].vsync_len)
 402                 {
 403                         if( (vmode->vmode == FB_VMODE_NONINTERLACED && vmode->yres == hdmi_mode[i].yres) ||
 404                                 (vmode->vmode == FB_VMODE_INTERLACED && vmode->yres == hdmi_mode[i].yres/2))
 405                         {
 406                                 vic = hdmi_mode[i].flag;
 407                                 break;
 408                         }
 409                 }
 410         }
 411         return vic;
 412 }
 413
 414 /**
 415  * hdmi_vic_to_videomode: transverse vic mode to video mode
 416  * @vmode: vic to transverse
 417  *
 418  */
 419 const struct fb_videomode* hdmi_vic_to_videomode(int vic)
 420 {
 421         int i;
 422
 423         if(vic == 0)
 424                 return NULL;
 425
 426         for(i = 0; i < ARRAY_SIZE(hdmi_mode); i++)
 427         {
 428                 if(hdmi_mode[i].flag == vic)
 429                         return &hdmi_mode[i];
 430         }
 431         return NULL;
 432 }
 433
 434 /**
 435  * hdmi_find_best_mode: find the video mode nearest to input vic
 436  * @hdmi:
 437  * @vic: input vic
 438  *
 439  * NOTES:
 440  * If vic is zero, return the high resolution video mode vic.
 441  */
 442 int hdmi_find_best_mode(struct hdmi* hdmi, int vic)
 443 {
 444         struct list_head *pos, *head = &hdmi->edid.modelist;
 445         struct fb_modelist *modelist;
 446         struct fb_videomode *m = NULL;
 447         int found = 0;
 448
 449         if(vic)
 450         {
 451                 list_for_each(pos, head) {
 452                         modelist = list_entry(pos, struct fb_modelist, list);
 453                         m = &modelist->mode;
 454                         if(m->flag == vic)
 455                         {
 456                                 found = 1;
 457                                 break;
 458                         }
 459                 }
 460         }
 461         if( (vic == 0 || found == 0) && head->next != head)
 462         {
 463                 modelist = list_entry(head->next, struct fb_modelist, list);
 464                 m = &modelist->mode;
 465         }
 466         if(m != NULL)
 467                 return m->flag;
 468         else
 469                 return 0;
 470 }
 471
 472 const char *hdmi_get_video_mode_name(unsigned char vic)
 473 {
 474         int i;
 475
 476         for(i = 0; i < ARRAY_SIZE(hdmi_mode); i++)
 477         {
 478                 if(vic == hdmi_mode[i].flag)
 479                         break;
 480         }
 481         if(i == ARRAY_SIZE(hdmi_mode))
 482                 return NULL;
 483         else
 484                 return hdmi_mode[i].name;
 485 }
 486
 487 /**
 488  * hdmi_switch_fb: switch lcdc mode to required video mode
 489  * @hdmi:
 490  * @type:
 491  *
 492  * NOTES:
 493  *
 494  */
 495 int hdmi_switch_fb(struct hdmi *hdmi, int vic)
 496 {
 497         int rc = 0;
 498         rk_screen *screen;
 499
 500
 501         screen =  kzalloc(sizeof(struct rk29fb_screen), GFP_KERNEL);
 502         if(screen == NULL)
 503                 return -1;
 504
 505         if(hdmi->vic == 0)
 506                 hdmi->vic = HDMI_VIDEO_DEFAULT_MODE;
 507
 508
 509         rc = hdmi_set_info(screen, hdmi->vic);
 510
 511         if(rc == 0) {
 512                 rk_fb_switch_screen(screen, 1, hdmi->lcdc->id);
 513                 rk_fb_disp_scale(hdmi->xscale, hdmi->yscale, hdmi->lcdc->id);
 514                 if(hdmi->set_vif)
 515                         hdmi->set_vif(screen,1);
 516
 517         }
 518
 519         kfree(screen);
 520
 521         return rc;
 522 }
 523
 524 /**
 525  * hdmi_get_status: get hdmi hotplug status
 526  *
 527  * NOTES:
 528  *
 529  */
 530 int hdmi_get_hotplug(void)
 531 {
 532         if(hdmi)
 533                 return hdmi->hotplug;
 534         else
 535                 return HDMI_HPD_REMOVED;
 536 }