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