drivers/video/videomodes.h

   1 /*
   2  * (C) Copyright 2004
   3  * Pierre Aubert, Staubli Faverges , <p.aubert@staubli.com>
   4  *
   5  * SPDX-License-Identifier:     GPL-2.0+
   6  */
   7
   8 #include <edid.h>
   9
  10 #ifndef CONFIG_SYS_DEFAULT_VIDEO_MODE
  11 #define CONFIG_SYS_DEFAULT_VIDEO_MODE   0x301
  12 #endif
  13
  14 /* Some mode definitions */
  15 #define FB_SYNC_HOR_HIGH_ACT    1       /* horizontal sync high active  */
  16 #define FB_SYNC_VERT_HIGH_ACT   2       /* vertical sync high active    */
  17 #define FB_SYNC_EXT             4       /* external sync                */
  18 #define FB_SYNC_COMP_HIGH_ACT   8       /* composite sync high active   */
  19 #define FB_SYNC_BROADCAST       16      /* broadcast video timings      */
  20                                         /* vtotal = 144d/288n/576i => PAL  */
  21                                         /* vtotal = 121d/242n/484i => NTSC */
  22 #define FB_SYNC_ON_GREEN        32      /* sync on green */
  23 #define FB_VMODE_NONINTERLACED  0       /* non interlaced */
  24 #define FB_VMODE_INTERLACED     1       /* interlaced   */
  25 #define FB_VMODE_DOUBLE         2       /* double scan */
  26 #define FB_VMODE_MASK           255
  27
  28 #define FB_VMODE_YWRAP          256     /* ywrap instead of panning     */
  29 #define FB_VMODE_SMOOTH_XPAN    512     /* smooth xpan possible (internally used) */
  30 #define FB_VMODE_CONUPDATE      512     /* don't update x/yoffset       */
  31
  32
  33 /******************************************************************
  34  * Resolution Struct
  35  ******************************************************************/
  36 struct ctfb_res_modes {
  37         int xres;               /* visible resolution           */
  38         int yres;
  39         int refresh;            /* vertical refresh rate in hz  */
  40         /* Timing: All values in pixclocks, except pixclock (of course) */
  41         int pixclock;           /* pixel clock in ps (pico seconds) */
  42         int pixclock_khz;       /* pixel clock in kHz           */
  43         int left_margin;        /* time from sync to picture    */
  44         int right_margin;       /* time from picture to sync    */
  45         int upper_margin;       /* time from sync to picture    */
  46         int lower_margin;
  47         int hsync_len;          /* length of horizontal sync    */
  48         int vsync_len;          /* length of vertical sync      */
  49         int sync;               /* see FB_SYNC_*                */
  50         int vmode;              /* see FB_VMODE_*               */
  51 };
  52
  53 /******************************************************************
  54  * Vesa Mode Struct
  55  ******************************************************************/
  56 struct ctfb_vesa_modes {
  57         int vesanr;             /* Vesa number as in LILO (VESA Nr + 0x200} */
  58         int resindex;           /* index to resolution struct */
  59         int bits_per_pixel;     /* bpp */
  60 };
  61
  62 #define RES_MODE_640x480        0
  63 #define RES_MODE_800x600        1
  64 #define RES_MODE_1024x768       2
  65 #define RES_MODE_960_720        3
  66 #define RES_MODE_1152x864       4
  67 #define RES_MODE_1280x1024      5
  68 #define RES_MODE_1280x720       6
  69 #define RES_MODE_1360x768       7
  70 #define RES_MODE_1920x1080      8
  71 #define RES_MODE_1920x1200      9
  72 #define RES_MODES_COUNT         10
  73
  74 #define VESA_MODES_COUNT 19
  75
  76 extern const struct ctfb_vesa_modes vesa_modes[];
  77 extern const struct ctfb_res_modes res_mode_init[];
  78
  79 int video_get_params (struct ctfb_res_modes *pPar, char *penv);
  80
  81 int video_get_video_mode(unsigned int *xres, unsigned int *yres,
  82         unsigned int *depth, unsigned int *freq, const char **options);
  83
  84 void video_get_ctfb_res_modes(int default_mode, unsigned int default_depth,
  85                               const struct ctfb_res_modes **mode_ret,
  86                               unsigned int *depth_ret,
  87                               const char **options);
  88
  89 void video_get_option_string(const char *options, const char *name,
  90                              char *dest, int dest_len, const char *def);
  91
  92 int video_get_option_int(const char *options, const char *name, int def);
  93
  94 int video_edid_dtd_to_ctfb_res_modes(struct edid_detailed_timing *t,
  95                                      struct ctfb_res_modes *mode);