cmd/cls.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * (C) Copyright 2018
   4  * DENX Software Engineering, Anatolij Gustschin <agust@denx.de>
   5  *
   6  * cls - clear screen command
   7  */
   8 #include <common.h>
   9 #include <command.h>
  10 #include <dm.h>
  11 #include <lcd.h>
  12 #include <video.h>
  13
  14 static int do_video_clear(struct cmd_tbl *cmdtp, int flag, int argc,
  15                           char *const argv[])
  16 {
  17 #if defined(CONFIG_DM_VIDEO)
  18         struct udevice *dev;
  19
  20         if (uclass_first_device_err(UCLASS_VIDEO, &dev))
  21                 return CMD_RET_FAILURE;
  22
  23         if (video_clear(dev))
  24                 return CMD_RET_FAILURE;
  25 #elif defined(CONFIG_CFB_CONSOLE)
  26         video_clear();
  27 #elif defined(CONFIG_LCD)
  28         lcd_clear();
  29 #else
  30         return CMD_RET_FAILURE;
  31 #endif
  32         return CMD_RET_SUCCESS;
  33 }
  34
  35 U_BOOT_CMD(cls, 1, 1, do_video_clear, "clear screen", "");