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61a6210541
The cls command is broken. Previous discussion about this was at [1] and [2]. For now, add a note to the source code. [1] https://patchwork.ozlabs.org/project/uboot/patch/ 20221022092058.106052-1-heinrich.schuchardt@canonical.com/ [2] https://patchwork.ozlabs.org/project/uboot/patch/ 20230106145243.411626-12-sjg@chromium.org/ Signed-off-by: Simon Glass <sjg@chromium.org>
42 lines
954 B
C
42 lines
954 B
C
// SPDX-License-Identifier: GPL-2.0+
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/*
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* (C) Copyright 2018
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* DENX Software Engineering, Anatolij Gustschin <agust@denx.de>
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*
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* cls - clear screen command
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*/
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#include <common.h>
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#include <command.h>
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#include <dm.h>
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#include <video_console.h>
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#define CSI "\x1b["
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static int do_video_clear(struct cmd_tbl *cmdtp, int flag, int argc,
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char *const argv[])
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{
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__maybe_unused struct udevice *dev;
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/*
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* Send clear screen and home
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*
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* FIXME(Heinrich Schuchardt <xypron.glpk@gmx.de>): This should go
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* through an API and only be written to serial terminals, not video
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* displays
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*/
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printf(CSI "2J" CSI "1;1H");
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if (IS_ENABLED(CONFIG_VIDEO_ANSI))
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return 0;
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if (IS_ENABLED(CONFIG_VIDEO)) {
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if (uclass_first_device_err(UCLASS_VIDEO_CONSOLE, &dev))
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return CMD_RET_FAILURE;
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if (vidconsole_clear_and_reset(dev))
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return CMD_RET_FAILURE;
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}
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return CMD_RET_SUCCESS;
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}
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U_BOOT_CMD(cls, 1, 1, do_video_clear, "clear screen", "");
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