drivers/video/videomodes.h

   1 /*
   2  * (C) Copyright 2004
   3  * Pierre Aubert, Staubli Faverges , <p.aubert@staubli.com>
   4  *
   5  * See file CREDITS for list of people who contributed to this
   6  * project.
   7  *
   8  * This program is free software; you can redistribute it and/or
   9  * modify it under the terms of the GNU General Public License as
  10  * published by the Free Software Foundation; either version 2 of
  11  * the License, or (at your option) any later version.
  12  *
  13  * This program is distributed in the hope that it will be useful,
  14  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  15  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  16  * GNU General Public License for more details.
  17  *
  18  * You should have received a copy of the GNU General Public License
  19  * along with this program; if not, write to the Free Software
  20  * Foundation, Inc., 59 Temple Place, Suite 330, Boston,
  21  * MA 02111-1307 USA
  22  */
  23
  24
  25 #ifndef CONFIG_SYS_DEFAULT_VIDEO_MODE
  26 #define CONFIG_SYS_DEFAULT_VIDEO_MODE   0x301
  27 #endif
  28
  29 /* Some mode definitions */
  30 #define FB_SYNC_HOR_HIGH_ACT    1       /* horizontal sync high active  */
  31 #define FB_SYNC_VERT_HIGH_ACT   2       /* vertical sync high active    */
  32 #define FB_SYNC_EXT             4       /* external sync                */
  33 #define FB_SYNC_COMP_HIGH_ACT   8       /* composite sync high active   */
  34 #define FB_SYNC_BROADCAST       16      /* broadcast video timings      */
  35                                         /* vtotal = 144d/288n/576i => PAL  */
  36                                         /* vtotal = 121d/242n/484i => NTSC */
  37 #define FB_SYNC_ON_GREEN        32      /* sync on green */
  38 #define FB_VMODE_NONINTERLACED  0       /* non interlaced */
  39 #define FB_VMODE_INTERLACED     1       /* interlaced   */
  40 #define FB_VMODE_DOUBLE         2       /* double scan */
  41 #define FB_VMODE_MASK           255
  42
  43 #define FB_VMODE_YWRAP          256     /* ywrap instead of panning     */
  44 #define FB_VMODE_SMOOTH_XPAN    512     /* smooth xpan possible (internally used) */
  45 #define FB_VMODE_CONUPDATE      512     /* don't update x/yoffset       */
  46
  47
  48 /******************************************************************
  49  * Resolution Struct
  50  ******************************************************************/
  51 struct ctfb_res_modes {
  52         int xres;               /* visible resolution           */
  53         int yres;
  54         /* Timing: All values in pixclocks, except pixclock (of course) */
  55         int pixclock;           /* pixel clock in ps (pico seconds) */
  56         int left_margin;        /* time from sync to picture    */
  57         int right_margin;       /* time from picture to sync    */
  58         int upper_margin;       /* time from sync to picture    */
  59         int lower_margin;
  60         int hsync_len;          /* length of horizontal sync    */
  61         int vsync_len;          /* length of vertical sync      */
  62         int sync;               /* see FB_SYNC_*                */
  63         int vmode;              /* see FB_VMODE_*               */
  64 };
  65
  66 /******************************************************************
  67  * Vesa Mode Struct
  68  ******************************************************************/
  69 struct ctfb_vesa_modes {
  70         int vesanr;             /* Vesa number as in LILO (VESA Nr + 0x200} */
  71         int resindex;           /* index to resolution struct */
  72         int bits_per_pixel;     /* bpp */
  73 };
  74
  75 #define RES_MODE_640x480        0
  76 #define RES_MODE_800x600        1
  77 #define RES_MODE_1024x768       2
  78 #define RES_MODE_960_720        3
  79 #define RES_MODE_1152x864       4
  80 #define RES_MODE_1280x1024      5
  81 #define RES_MODES_COUNT         6
  82
  83 #define VESA_MODES_COUNT 19
  84
  85 extern const struct ctfb_vesa_modes vesa_modes[];
  86 extern const struct ctfb_res_modes res_mode_init[];
  87
  88 int video_get_params (struct ctfb_res_modes *pPar, char *penv);
  89
  90 int video_get_video_mode(unsigned int *xres, unsigned int *yres,
  91         unsigned int *depth, unsigned int *freq, const char **options);