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 <common.h>
  10 #include <command.h>
  11 #include <dm.h>
  12 #include <video.h>
  13 #include <video_console.h>
  14
  15 static int do_video_setcursor(struct cmd_tbl *cmdtp, int flag, int argc,
  16                               char *const argv[])
  17 {
  18         unsigned int col, row;
  19         struct udevice *dev;
  20
  21         if (argc != 3)
  22                 return CMD_RET_USAGE;
  23
  24         if (uclass_first_device_err(UCLASS_VIDEO_CONSOLE, &dev))
  25                 return CMD_RET_FAILURE;
  26         col = dectoul(argv[1], NULL);
  27         row = dectoul(argv[2], NULL);
  28         vidconsole_position_cursor(dev, col, row);
  29
  30         return 0;
  31 }
  32
  33 static int do_video_puts(struct cmd_tbl *cmdtp, int flag, int argc,
  34                          char *const argv[])
  35 {
  36         struct udevice *dev;
  37         int ret;
  38
  39         if (argc != 2)
  40                 return CMD_RET_USAGE;
  41
  42         if (uclass_first_device_err(UCLASS_VIDEO_CONSOLE, &dev))
  43                 return CMD_RET_FAILURE;
  44         ret = vidconsole_put_string(dev, argv[1]);
  45         if (!ret)
  46                 ret = video_sync(dev->parent, false);
  47
  48         return ret ? CMD_RET_FAILURE : 0;
  49 }
  50
  51 U_BOOT_CMD(
  52         setcurs, 3,     1,      do_video_setcursor,
  53         "set cursor position within screen",
  54         "    <col> <row> in character"
  55 );
  56
  57 U_BOOT_CMD(
  58         lcdputs, 2,     1,      do_video_puts,
  59         "print string on video framebuffer",
  60         "    <string>"
  61 );