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// SPDX-License-Identifier: GPL-2.0+
/*
* The 'conitrace' command prints the codes received from the console input as
* hexadecimal numbers.
*
* Copyright (c) 2018, Heinrich Schuchardt <xypron.glpk@gmx.de>
*/
#include <common.h>
#include <command.h>
#include <linux/delay.h>
static int do_conitrace(struct cmd_tbl *cmdtp, int flag, int argc,
char *const argv[])
{
bool first = true;
printf("Waiting for your input\n");
printf("To terminate type 'x'\n");
/* Empty input buffer */
while (tstc())
getchar();
for (;;) {
int c = getchar();
if (first && (c == 'x' || c == 'X'))
break;
printf("%02x ", c);
first = false;
/* 10 ms delay - serves to detect separate keystrokes */
udelay(10000);
if (!tstc()) {
printf("\n");
first = true;
}
}
return CMD_RET_SUCCESS;
}
U_BOOT_LONGHELP(conitrace, "");
U_BOOT_CMD_COMPLETE(
conitrace, 2, 0, do_conitrace,
"trace console input",
conitrace_help_text, NULL
);
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