cmd/video.c

   1 // SPDX-License-Identifier: GPL-2.0+
   2 /*
   3  * video commands
   4  *
   5  * Copyright 2022 Google LLC
   6  * Written by Simon Glass <sjg@chromium.org>
   7  */
   8
   9 #include <command.h>
  10 #include <dm.h>
  11 #include <video.h>
  12 #include <video_console.h>
  13
  14 static int do_video_setcursor(struct cmd_tbl *cmdtp, int flag, int argc,
  15                               char *const argv[])
  16 {
  17         unsigned int col, row;
  18         struct udevice *dev;
  19
  20         if (argc != 3)
  21                 return CMD_RET_USAGE;
  22
  23         if (uclass_first_device_err(UCLASS_VIDEO_CONSOLE, &dev))
  24                 return CMD_RET_FAILURE;
  25         col = dectoul(argv[1], NULL);
  26         row = dectoul(argv[2], NULL);
  27         vidconsole_position_cursor(dev, col, row);
  28
  29         return 0;
  30 }
  31
  32 static int do_video_puts(struct cmd_tbl *cmdtp, int flag, int argc,
  33                          char *const argv[])
  34 {
  35         struct udevice *dev;
  36         int ret;
  37
  38         if (argc != 2)
  39                 return CMD_RET_USAGE;
  40
  41         if (uclass_first_device_err(UCLASS_VIDEO_CONSOLE, &dev))
  42                 return CMD_RET_FAILURE;
  43         ret = vidconsole_put_string(dev, argv[1]);
  44         if (!ret)
  45                 ret = video_sync(dev->parent, false);
  46
  47         return ret ? CMD_RET_FAILURE : 0;
  48 }
  49
  50 U_BOOT_CMD(
  51         setcurs, 3,     1,      do_video_setcursor,
  52         "set cursor position within screen",
  53         "    <col> <row> in character"
  54 );
  55
  56 U_BOOT_CMD(
  57         lcdputs, 2,     1,      do_video_puts,
  58         "print string on video framebuffer",
  59         "    <string>"
  60 );