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 struct hdmi *m_hdmi_drv = NULL;
  12
  13 static const struct fb_videomode hdmi_mode [] = {
  14         //name                  refresh         xres    yres    pixclock                h_bp    h_fp    v_bp    v_fp    h_pw    v_pw    polariry        PorI    flag(used for vic)
  15 //{     "640x480p@60Hz",                60,             640,    480,    25175000,       48,     16,     33,     10,     96,     2,      0,      0,      1       },
  16 //{     "720x480i@60Hz",                60,             720,    480,    27000000,       114,    38,     15,     4,      124,    3,      0,      1,      6       },
  17 //{     "720x576i@50Hz",                50,             720,    576,    27000000,       138,    24,     19,     2,      126,    3,      0,      1,      21      },
  18 {       "720x480p@60Hz",        60,             720,    480,    27000000,       60,     16,     30,     9,      62,     6,      0,      0,      2       },
  19 {       "720x576p@50Hz",        50,             720,    576,    27000000,       68,     12,     39,     5,      64,     5,      0,      0,      17      },
  20 //{     "1280x720p@24Hz",       24,             1280,   720,    59400000,       220,    1760,   20,     5,      40,     5,      FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,                   0,              60      },
  21 //{     "1280x720p@25Hz",       25,             1280,   720,    74250000,       220,    2420,   20,     5,      40,     5,      FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,                   0,              61      },
  22 //{     "1280x720p@30Hz",       30,             1280,   720,    74250000,       220,    1760,   20,     5,      40,     5,      FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,                   0,              62      },
  23 {       "1280x720p@50Hz",       50,             1280,   720,    74250000,       220,    440,    20,     5,      40,     5,      FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,                   0,              19      },
  24 {       "1280x720p@60Hz",       60,             1280,   720,    74250000,       220,    110,    20,     5,      40,     5,      FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,                   0,              4       },
  25 //{     "1920x1080p@24Hz",      24,             1920,   1080,   74250000,       148,    638,    36,     4,      44,     5,      FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,                   0,              32      },
  26 //{     "1920x1080p@25Hz",      25,             1920,   1080,   74250000,       148,    528,    36,     4,      44,     5,      FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,                   0,              33      },
  27 //{     "1920x1080p@30Hz",      30,             1920,   1080,   74250000,       148,    88,     36,     4,      44,     5,      FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,                   0,              34      },
  28 //{     "1920x1080i@50Hz_2",    50,             1920,   1080,   72000000,       184,    32,     57,     23,     168,    5,      FB_SYNC_HOR_HIGH_ACT,                   1,              39      },
  29 //{     "1920x1080i@50Hz",      50,             1920,   1080,   74250000,       148,    528,    15,     2,      44,     5,      FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,                   1,              20      },
  30 //{     "1920x1080i@60Hz",      60,             1920,   1080,   74250000,       148,    88,     15,     2,      44,     5,      FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,                   1,              5       },
  31 {       "1920x1080p@50Hz",      50,             1920,   1080,   148500000,      148,    528,    36,     4,      44,     5,      FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,                   0,              31      },
  32 {       "1920x1080p@60Hz",      60,             1920,   1080,   148500000,      148,    88,     36,     4,      44,     5,      FB_SYNC_HOR_HIGH_ACT | FB_SYNC_VERT_HIGH_ACT,                   0,              16      },
  33 /*
  34 {       "1440x288p@50Hz",       50,             720,    480,    27000000,       138,    24,     19,     2,      126,    3,              0,                      0,              23      },
  35 {       "2880x576i@50Hz",       50,             1440,   240,    54000000,       276,    48,     19,     2,      252,    3,              0,                      1,              25      },
  36 {       "2880x288p@50Hz",       50,             2880,   480,    54000000,       276,    48,     19,     3,      252,    3,              0,                      0,              27      },
  37 {       "1440x576p@50Hz",       50,             2880,   480,    54000000,       136,    24,     39,     5,      128,    5,              0,                      0,              29      },
  38 {       "2880x576p@50Hz",       50,             1920,   1080,   108000000,      272,    48,     39,     5,      256,    5,              0,                      0,              37      },
  39 {       "1440x240p@60Hz",       60,             1440,   240,    27000000,       114,    38,     15,     4,      124,    3,              0,                      0,              8       },
  40 {       "2880x480i@60Hz",       60,             2880,   480,    54000000,       228,    76,     15,     4,      248,    3,              0,                      1,              10      },
  41 {       "2880x480p@60Hz",       60,             2880,   480,    54000000,       228,    76,     15,     4,      248,    3,              0,                      0,              12      },
  42 {       "1440x480p@60Hz",       60,             1440,   480,    54000000,       120,    32,     30,     9,      124,    6,              0,                      0,              14      },
  43 {       "2880x480p@60Hz",       60,             2880,   480,    54000000,       240,    64,     30,     9,      248,    6,              0,                      0,              35      },
  44
  45 {       "1920x1080i@100Hz",     100,            1920,   1080,   148500000,      148,    528,    15,     2,      44,     5,              1,                      1,              40      },
  46 {       "1280x720p@100Hz",      100,            1280,   720,    148500000,      220,    440,    20,     5,      40,     5,              1,                      0,              41      },
  47 {       "720x576p@100Hz",       100,            720,    576,    54000000,       68,             12,     39,     5,      64,             5,              0,                      0,              42      },
  48 {       "1440x576i@100Hz",      100,            1440,   576,    54000000,       138,    24,     19,     2,      12,     3,              0,                      1,              44      },
  49 {       "1920x1080p@100Hz",     100,            1920,   1080,   297000000,      148,    528,    36,     4,      44,     5,              1,                      0,              64      },
  50
  51 {       "1920x1080i@120Hz",     120,            1920,   1080,   148500000,      148,    88,     15,     2,      44,     5,              1,                      1,              46      },
  52 {       "1280x720p@120Hz",      120,            1280,   720,    148500000,      220,    110,    20,     5,      40,     5,              1,                      0,              47      },
  53 {       "720x480p@120Hz",       120,            720,    480,    54000000,       60,             16,     30,     9,      62,             6,              0,                      0,              48      },
  54 {       "1440x480i@120Hz",      120,            1440,   480,    54000000,       114,    38,     15,     4,      12,     3,              0,                      1,              50      },
  55 {       "1920x1080p@120Hz",     120,            1920,   1080,   297000000,      148,    88,     36,     4,      44,     5,              1,                      0,              63      },
  56
  57 {       "720x576p@200Hz",       200,            720,    576,    108000000,      68,     12,     39,     5,      64,     5,              0,                      0,              52      },
  58 {       "1440x576i@200Hz",      200,            1920,   1080,   108000000,      138,    24,     19,     2,      12,     3,              0,                      1,              54      },
  59
  60 {       "720x480p@240Hz",       240,            720,    480,    108000000,      60,     16,     30,     9,      62,     6,              0,                      0,              56      },
  61 {       "1440x480i@240Hz",      240,            1440,   480,    108000000,      114,    38,     15,     4,      12,     3,              0,                      1,              58      },
  62 */
  63
  64 };
  65
  66 void hdmi_init_lcdc(struct rk_screen *screen, struct rk29lcd_info *lcd_info)
  67 {
  68         hdmi_set_info(screen, HDMI_VIDEO_DEFAULT_MODE);
  69 }
  70
  71 int hdmi_set_info(struct rk_screen *screen, unsigned int vic)
  72 {
  73     int i;
  74
  75     if(screen == NULL)
  76         return -1;
  77
  78     if(vic == 0)
  79         vic = HDMI_VIDEO_DEFAULT_MODE;
  80
  81     for(i = 0; i < ARRAY_SIZE(hdmi_mode); i++)
  82     {
  83         if(hdmi_mode[i].flag == vic)
  84                 break;
  85     }
  86     if(i == ARRAY_SIZE(hdmi_mode))
  87         return -1;
  88
  89     memset(screen, 0, sizeof(struct rk_screen));
  90
  91     /* screen type & face */
  92     screen->type = OUT_TYPE;
  93     screen->face = OUT_FACE;
  94
  95     /* Screen size */
  96     screen->mode.xres = hdmi_mode[i].xres;
  97     screen->mode.yres = hdmi_mode[i].yres;
  98
  99     /* Timing */
 100     screen->mode.pixclock = hdmi_mode[i].pixclock;
 101     screen->mode.refresh = hdmi_mode[i].refresh;
 102         //screen->lcdc_aclk = LCD_ACLK;
 103         screen->mode.left_margin = hdmi_mode[i].left_margin;
 104         screen->mode.right_margin = hdmi_mode[i].right_margin;
 105         screen->mode.hsync_len = hdmi_mode[i].hsync_len;
 106         screen->mode.upper_margin = hdmi_mode[i].upper_margin;
 107         screen->mode.lower_margin = hdmi_mode[i].lower_margin;
 108         screen->mode.vsync_len = hdmi_mode[i].vsync_len;
 109         screen->hdmi_resolution = hdmi_mode[i].flag;
 110
 111         /* Pin polarity */
 112 #if defined(CONFIG_HDMI_RK616) && !defined(CONFIG_ARCH_RK3026)
 113         screen->pin_hsync = 0;
 114         screen->pin_vsync = 0;
 115 #else
 116         screen->pin_hsync = 0;
 117         if(FB_SYNC_HOR_HIGH_ACT & hdmi_mode[i].sync)
 118                 screen->pin_hsync = 1;
 119         else
 120                 screen->pin_hsync = 0;
 121         if(FB_SYNC_VERT_HIGH_ACT & hdmi_mode[i].sync)
 122                 screen->pin_vsync = 1;
 123         else
 124                 screen->pin_vsync = 0;
 125 #endif
 126         screen->pin_den = 0;
 127         screen->pin_dclk = DCLK_POL;
 128
 129         /* Swap rule */
 130     screen->swap_rb = SWAP_RB;
 131     screen->swap_rg = 0;
 132     screen->swap_gb = 0;
 133     screen->swap_delta = 0;
 134     screen->swap_dumy = 0;
 135
 136     /* Operation function*/
 137     screen->init = NULL;
 138     screen->standby = NULL;
 139
 140     return 0;
 141 }
 142
 143 static void hdmi_show_sink_info(struct hdmi *hdmi)
 144 {
 145         struct list_head *pos, *head = &hdmi->edid.modelist;
 146         struct fb_modelist *modelist;
 147         struct fb_videomode *m;
 148         int i;
 149         struct hdmi_audio *audio;
 150
 151         hdmi_dbg(hdmi->dev, "******** Show Sink Info ********\n");
 152         hdmi_dbg(hdmi->dev, "Support video mode: \n");
 153         list_for_each(pos, head) {
 154                 modelist = list_entry(pos, struct fb_modelist, list);
 155                 m = &modelist->mode;
 156                 hdmi_dbg(hdmi->dev, "   %s.\n", m->name);
 157         }
 158
 159         for(i = 0; i < hdmi->edid.audio_num; i++)
 160         {
 161                 audio = &(hdmi->edid.audio[i]);
 162                 switch(audio->type)
 163                 {
 164                         case HDMI_AUDIO_LPCM:
 165                                 hdmi_dbg(hdmi->dev, "Support audio type: LPCM\n");
 166                                 break;
 167                         case HDMI_AUDIO_AC3:
 168                                 hdmi_dbg(hdmi->dev, "Support audio type: AC3\n");
 169                                 break;
 170                         case HDMI_AUDIO_MPEG1:
 171                                 hdmi_dbg(hdmi->dev, "Support audio type: MPEG1\n");
 172                                 break;
 173                         case HDMI_AUDIO_MP3:
 174                                 hdmi_dbg(hdmi->dev, "Support audio type: MP3\n");
 175                                 break;
 176                         case HDMI_AUDIO_MPEG2:
 177                                 hdmi_dbg(hdmi->dev, "Support audio type: MPEG2\n");
 178                                 break;
 179                         case HDMI_AUDIO_AAC_LC:
 180                                 hdmi_dbg(hdmi->dev, "Support audio type: AAC\n");
 181                                 break;
 182                         case HDMI_AUDIO_DTS:
 183                                 hdmi_dbg(hdmi->dev, "Support audio type: DTS\n");
 184                                 break;
 185                         case HDMI_AUDIO_ATARC:
 186                                 hdmi_dbg(hdmi->dev, "Support audio type: ATARC\n");
 187                                 break;
 188                         case HDMI_AUDIO_DSD:
 189                                 hdmi_dbg(hdmi->dev, "Support audio type: DSD\n");
 190                                 break;
 191                         case HDMI_AUDIO_E_AC3:
 192                                 hdmi_dbg(hdmi->dev, "Support audio type: E-AC3\n");
 193                                 break;
 194                         case HDMI_AUDIO_DTS_HD:
 195                                 hdmi_dbg(hdmi->dev, "Support audio type: DTS-HD\n");
 196                                 break;
 197                         case HDMI_AUDIO_MLP:
 198                                 hdmi_dbg(hdmi->dev, "Support audio type: MLP\n");
 199                                 break;
 200                         case HDMI_AUDIO_DST:
 201                                 hdmi_dbg(hdmi->dev, "Support audio type: DST\n");
 202                                 break;
 203                         case HDMI_AUDIO_WMA_PRO:
 204                                 hdmi_dbg(hdmi->dev, "Support audio type: WMP-PRO\n");
 205                                 break;
 206                         default:
 207                                 hdmi_dbg(hdmi->dev, "Support audio type: Unkown\n");
 208                                 break;
 209                 }
 210
 211                 hdmi_dbg(hdmi->dev, "Support audio sample rate: \n");
 212                 if(audio->rate & HDMI_AUDIO_FS_32000)
 213                         hdmi_dbg(hdmi->dev, "   32000\n");
 214                 if(audio->rate & HDMI_AUDIO_FS_44100)
 215                         hdmi_dbg(hdmi->dev, "   44100\n");
 216                 if(audio->rate & HDMI_AUDIO_FS_48000)
 217                         hdmi_dbg(hdmi->dev, "   48000\n");
 218                 if(audio->rate & HDMI_AUDIO_FS_88200)
 219                         hdmi_dbg(hdmi->dev, "   88200\n");
 220                 if(audio->rate & HDMI_AUDIO_FS_96000)
 221                         hdmi_dbg(hdmi->dev, "   96000\n");
 222                 if(audio->rate & HDMI_AUDIO_FS_176400)
 223                         hdmi_dbg(hdmi->dev, "   176400\n");
 224                 if(audio->rate & HDMI_AUDIO_FS_192000)
 225                         hdmi_dbg(hdmi->dev, "   192000\n");
 226
 227                 hdmi_dbg(hdmi->dev, "Support audio word lenght: \n");
 228                 if(audio->rate & HDMI_AUDIO_WORD_LENGTH_16bit)
 229                         hdmi_dbg(hdmi->dev, "   16bit\n");
 230                 if(audio->rate & HDMI_AUDIO_WORD_LENGTH_20bit)
 231                         hdmi_dbg(hdmi->dev, "   20bit\n");
 232                 if(audio->rate & HDMI_AUDIO_WORD_LENGTH_24bit)
 233                         hdmi_dbg(hdmi->dev, "   24bit\n");
 234         }
 235         hdmi_dbg(hdmi->dev, "******** Show Sink Info ********\n");
 236 }
 237
 238 /**
 239  * hdmi_ouputmode_select - select hdmi transmitter output mode: hdmi or dvi?
 240  * @hdmi: handle of hdmi
 241  * @edid_ok: get EDID data success or not, HDMI_ERROR_SUCESS means success.
 242  */
 243 int hdmi_ouputmode_select(struct hdmi *hdmi, int edid_ok)
 244 {
 245         struct list_head *head = &hdmi->edid.modelist;
 246         struct fb_monspecs      *specs = hdmi->edid.specs;
 247         struct fb_videomode *modedb = NULL;
 248         int i, pixclock;
 249
 250         if(edid_ok != HDMI_ERROR_SUCESS) {
 251                 dev_err(hdmi->dev, "warning: EDID error, assume sink as HDMI and asume minitor support audio output!!!!");
 252                 hdmi->edid.sink_hdmi = 1;
 253                 //if edid error,asume monitor support audio output.
 254                 hdmi->edid.base_audio_support = 1;
 255         }
 256
 257         if(edid_ok != HDMI_ERROR_SUCESS) {
 258                 hdmi->edid.ycbcr444 = 0;
 259                 hdmi->edid.ycbcr422 = 0;
 260                 hdmi->autoconfig = HDMI_DISABLE;
 261         }
 262         if(head->next == head) {
 263                 dev_info(hdmi->dev, "warning: no CEA video mode parsed from EDID !!!!");
 264                 // If EDID get error, list all system supported mode.
 265                 // If output mode is set to DVI and EDID is ok, check
 266                 // the output timing.
 267
 268                 if(hdmi->edid.sink_hdmi == 0 && specs && specs->modedb_len) {
 269                         /* Get max resolution timing */
 270                         modedb = &specs->modedb[0];
 271                         for (i = 0; i < specs->modedb_len; i++) {
 272                                 if(specs->modedb[i].xres > modedb->xres)
 273                                         modedb = &specs->modedb[i];
 274                                 else if(specs->modedb[i].yres > modedb->yres)
 275                                         modedb = &specs->modedb[i];
 276                         }
 277                         // For some monitor, the max pixclock read from EDID is smaller
 278                         // than the clock of max resolution mode supported. We fix it.
 279                         pixclock = PICOS2KHZ(modedb->pixclock);
 280                         pixclock /= 250;
 281                         pixclock *= 250;
 282                         pixclock *= 1000;
 283                         if(pixclock == 148250000)
 284                                 pixclock = 148500000;
 285                         if(pixclock > specs->dclkmax)
 286                                 specs->dclkmax = pixclock;
 287                 }
 288
 289                 for(i = 0; i < ARRAY_SIZE(hdmi_mode); i++) {
 290                         if(modedb) {
 291                                 if( (hdmi_mode[i].pixclock < specs->dclkmin) ||
 292                                         (hdmi_mode[i].pixclock > specs->dclkmax) ||
 293                                         (hdmi_mode[i].refresh < specs->vfmin) ||
 294                                         (hdmi_mode[i].refresh > specs->vfmax) ||
 295                                         (hdmi_mode[i].xres > modedb->xres) ||
 296                                         (hdmi_mode[i].yres > modedb->yres) )
 297                                 continue;
 298                         }
 299                         hdmi_add_videomode(&hdmi_mode[i], head);
 300                 }
 301         }
 302
 303         #ifdef HDMI_DEBUG
 304         hdmi_show_sink_info(hdmi);
 305         #endif
 306         return HDMI_ERROR_SUCESS;
 307 }
 308 /**
 309  * hdmi_videomode_compare - compare 2 videomodes
 310  * @mode1: first videomode
 311  * @mode2: second videomode
 312  *
 313  * RETURNS:
 314  * 1 if mode1 > mode2, 0 if mode1 = mode2, -1 mode1 < mode2
 315  */
 316 static int hdmi_videomode_compare(const struct fb_videomode *mode1,
 317                      const struct fb_videomode *mode2)
 318 {
 319         if(mode1->xres > mode2->xres)
 320                 return 1;
 321         else if(mode1->xres == mode2->xres)
 322         {
 323                 if(mode1->yres > mode2->yres)
 324                         return 1;
 325                 else if(mode1->yres == mode2->yres)
 326                 {
 327                         if(mode1->pixclock > mode2->pixclock)
 328                                 return 1;
 329                         else if(mode1->pixclock == mode2->pixclock)
 330                         {
 331                                 if(mode1->refresh > mode2->refresh)
 332                                         return 1;
 333                                 else if(mode1->refresh == mode2->refresh)
 334                                         return 0;
 335                         }
 336                 }
 337         }
 338         return -1;
 339 }
 340 /**
 341  * hdmi_add_videomode: adds videomode entry to modelist
 342  * @mode: videomode to add
 343  * @head: struct list_head of modelist
 344  *
 345  * NOTES:
 346  * Will only add unmatched mode entries
 347  */
 348 int hdmi_add_videomode(const struct fb_videomode *mode, struct list_head *head)
 349 {
 350         struct list_head *pos;
 351         struct fb_modelist *modelist, *modelist_new;
 352         struct fb_videomode *m;
 353         int i, found = 0;
 354
 355         for(i = 0; i < ARRAY_SIZE(hdmi_mode); i++)
 356     {
 357         m =(struct fb_videomode*) &hdmi_mode[i];
 358         if (fb_mode_is_equal(m, mode)) {
 359                         found = 1;
 360                         break;
 361                 }
 362     }
 363
 364         if (found) {
 365                 list_for_each(pos, head) {
 366                         modelist = list_entry(pos, struct fb_modelist, list);
 367                         m = &modelist->mode;
 368                         if (fb_mode_is_equal(m, mode)) {
 369                         // m == mode
 370                                 return 0;
 371                         }
 372                         else
 373                         {
 374                                 if(hdmi_videomode_compare(m, mode) == -1) {
 375                                         break;
 376                                 }
 377                         }
 378                 }
 379
 380                 modelist_new = kmalloc(sizeof(struct fb_modelist),
 381                                   GFP_KERNEL);
 382                 if (!modelist_new)
 383                         return -ENOMEM;
 384                 modelist_new->mode = hdmi_mode[i];
 385                 list_add_tail(&modelist_new->list, pos);
 386         }
 387
 388         return 0;
 389 }
 390
 391 /**
 392  * hdmi_videomode_to_vic: transverse video mode to vic
 393  * @vmode: videomode to transverse
 394  *
 395  */
 396 int hdmi_videomode_to_vic(struct fb_videomode *vmode)
 397 {
 398         unsigned char vic = 0;
 399         int i = 0;
 400
 401         for(i = 0; i < ARRAY_SIZE(hdmi_mode); i++)
 402         {
 403                 if(     vmode->vmode == hdmi_mode[i].vmode &&
 404                         vmode->refresh == hdmi_mode[i].refresh &&
 405                         vmode->xres == hdmi_mode[i].xres &&
 406                         vmode->left_margin == hdmi_mode[i].left_margin &&
 407                         vmode->right_margin == hdmi_mode[i].right_margin &&
 408                         vmode->upper_margin == hdmi_mode[i].upper_margin &&
 409                         vmode->lower_margin == hdmi_mode[i].lower_margin &&
 410                         vmode->hsync_len == hdmi_mode[i].hsync_len &&
 411                         vmode->vsync_len == hdmi_mode[i].vsync_len)
 412                 {
 413                         if( (vmode->vmode == FB_VMODE_NONINTERLACED && vmode->yres == hdmi_mode[i].yres) ||
 414                                 (vmode->vmode == FB_VMODE_INTERLACED && vmode->yres == hdmi_mode[i].yres/2))
 415                         {
 416                                 vic = hdmi_mode[i].flag;
 417                                 break;
 418                         }
 419                 }
 420         }
 421         return vic;
 422 }
 423
 424 /**
 425  * hdmi_vic_to_videomode: transverse vic mode to video mode
 426  * @vmode: vic to transverse
 427  *
 428  */
 429 const struct fb_videomode* hdmi_vic_to_videomode(int vic)
 430 {
 431         int i;
 432
 433         if(vic == 0)
 434                 return NULL;
 435
 436         for(i = 0; i < ARRAY_SIZE(hdmi_mode); i++)
 437         {
 438                 if(hdmi_mode[i].flag == vic)
 439                         return &hdmi_mode[i];
 440         }
 441         return NULL;
 442 }
 443
 444 /**
 445  * hdmi_find_best_mode: find the video mode nearest to input vic
 446  * @hdmi:
 447  * @vic: input vic
 448  *
 449  * NOTES:
 450  * If vic is zero, return the high resolution video mode vic.
 451  */
 452 int hdmi_find_best_mode(struct hdmi* hdmi, int vic)
 453 {
 454         struct list_head *pos, *head = &hdmi->edid.modelist;
 455         struct fb_modelist *modelist;
 456         struct fb_videomode *m = NULL;
 457         int found = 0;
 458
 459         if(vic)
 460         {
 461                 list_for_each(pos, head) {
 462                         modelist = list_entry(pos, struct fb_modelist, list);
 463                         m = &modelist->mode;
 464                         if(m->flag == vic)
 465                         {
 466                                 found = 1;
 467                                 break;
 468                         }
 469                 }
 470         }
 471         if( (vic == 0 || found == 0) && head->next != head)
 472         {
 473                 modelist = list_entry(head->next, struct fb_modelist, list);
 474                 m = &modelist->mode;
 475         }
 476         if(m != NULL)
 477                 return m->flag;
 478         else
 479                 return 0;
 480 }
 481
 482 const char *hdmi_get_video_mode_name(unsigned char vic)
 483 {
 484         int i;
 485
 486         for(i = 0; i < ARRAY_SIZE(hdmi_mode); i++)
 487         {
 488                 if(vic == hdmi_mode[i].flag)
 489                         break;
 490         }
 491         if(i == ARRAY_SIZE(hdmi_mode))
 492                 return NULL;
 493         else
 494                 return hdmi_mode[i].name;
 495 }
 496
 497 /**
 498  * hdmi_switch_fb: switch lcdc mode to required video mode
 499  * @hdmi:
 500  * @type:
 501  *
 502  * NOTES:
 503  *
 504  */
 505 int hdmi_switch_fb(struct hdmi *hdmi, int vic)
 506 {
 507         int rc = 0;
 508         struct rk_screen *screen;
 509
 510
 511         screen =  kzalloc(sizeof(struct rk_screen), GFP_KERNEL);
 512         if(screen == NULL)
 513                 return -1;
 514
 515         if(hdmi->vic == 0)
 516                 hdmi->vic = HDMI_VIDEO_DEFAULT_MODE;
 517
 518
 519         rc = hdmi_set_info(screen, hdmi->vic);
 520
 521         if(rc == 0) {
 522                 if(hdmi->set_vif)
 523                         hdmi->set_vif(hdmi,screen,0); //turn off vif for jettab
 524                 rk_fb_switch_screen(screen, 1, hdmi->lcdc->id);
 525                 rk_fb_disp_scale(hdmi->xscale, hdmi->yscale, hdmi->lcdc->id);
 526                 if(hdmi->set_vif)
 527                         hdmi->set_vif(hdmi,screen,1);
 528
 529         }
 530
 531         kfree(screen);
 532
 533         return rc;
 534 }
 535
 536 /**
 537  * hdmi_drv_register: init hdmi_drv variable
 538  *
 539  * NOTES:
 540  *
 541  */
 542 int hdmi_drv_register(struct hdmi *hdmi_drv)
 543 {
 544         m_hdmi_drv = hdmi_drv;
 545         return 0;
 546 }
 547
 548 /**
 549  * hdmi_get_status: get hdmi hotplug status
 550  *
 551  * NOTES:
 552  *
 553  */
 554 int hdmi_get_hotplug(void)
 555 {
 556         if(m_hdmi_drv)
 557                 return m_hdmi_drv->hotplug;
 558         else
 559                 return HDMI_HPD_REMOVED;
 560 }