common/cmd_vfd.c

   1 /*
   2  * (C) Copyright 2001
   3  * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
   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  * Command to load a splash screen to the VFDs.
  26  * NOTE that this will be controlled by a key combination when
  27  * the keyboard stuff works. For now the user has to enter a
  28  * bitmap number (only VFD_TEST_LOGO is supported now - 16.10.2002).
  29  * Added VFD_REMOTE_LOGO (same as VFD_TEST_LOGO but a different color)
  30  * on 20.10.2002.
  31  *
  32  * This rather crudely requires that each bitmap be included as a
  33  * header file.
  34  */
  35 #include <common.h>
  36 #include <command.h>
  37
  38 #if defined(CONFIG_CMD_VFD)
  39
  40 #include <vfd_logo.h>
  41 #define VFD_TEST_LOGO_BMPNR 0
  42 #define VFD_REMOTE_LOGO_BMPNR 1
  43
  44 extern int transfer_pic(unsigned char, unsigned char *, int, int);
  45
  46 int trab_vfd (ulong bitmap);
  47
  48 int do_vfd (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
  49 {
  50         ulong bitmap;
  51
  52         if (argc != 2)
  53                 return cmd_usage(cmdtp);
  54
  55         if (argv[1][0] == '/') {        /* select bitmap by number */
  56                 bitmap = simple_strtoul(argv[1]+1, NULL, 10);
  57                 return (trab_vfd(bitmap));
  58         }
  59
  60         /* display bitmap at given address */
  61         bitmap = simple_strtoul(argv[1], NULL, 16);
  62         transfer_pic(3, (uchar *)bitmap, VFD_LOGO_HEIGHT, VFD_LOGO_WIDTH);
  63         return 0;
  64 }
  65
  66 U_BOOT_CMD(
  67         vfd,    2,      0,      do_vfd,
  68         "load a bitmap to the VFDs on TRAB",
  69         "/N\n"
  70         "    - load bitmap N to the VFDs (N is _decimal_ !!!)\n"
  71         "vfd ADDR\n"
  72         "    - load bitmap at address ADDR"
  73 );
  74 #endif
  75
  76 int trab_vfd (ulong bitmap)
  77 {
  78         uchar *addr;
  79         char *s;
  80
  81         switch (bitmap) {
  82         case VFD_TEST_LOGO_BMPNR:
  83                 if ((s = getenv ("bitmap0")) != NULL) {
  84                         addr = (uchar *)simple_strtoul (s, NULL, 16);
  85                 } else {
  86                         addr = &vfd_test_logo_bitmap[0];
  87                 }
  88                 break;
  89         case VFD_REMOTE_LOGO_BMPNR:
  90                 if ((s = getenv ("bitmap1")) != NULL) {
  91                         addr = (uchar *)simple_strtoul (s, NULL, 16);
  92                 } else {
  93                         addr = &vfd_remote_logo_bitmap[0];
  94                 }
  95                 break;
  96         default:
  97                 printf("Unknown bitmap %ld\n", bitmap);
  98                 return 1;
  99         }
 100         transfer_pic(3, addr, VFD_LOGO_HEIGHT, VFD_LOGO_WIDTH);
 101         return 0;
 102 }