[PATCH v1 1/2] cmd: exit: add continue on key press command

[Svyatoslav Ryhel]

This command stops performing script until any
key is pressed. It is useful for keeping logs
on screen until user decides to continue.

Co-developed-by: Jonas Schwöbel <jonasschwoebel at yahoo.de>
Signed-off-by: Jonas Schwöbel <jonasschwoebel at yahoo.de>
Signed-off-by: Svyatoslav Ryhel <clamor95 at gmail.com>
---
 cmd/exit.c | 17 +++++++++++++++++
 1 file changed, 17 insertions(+)

diff --git a/cmd/exit.c b/cmd/exit.c
index 7bf241ec73..673b4b6be7 100644
--- a/cmd/exit.c
+++ b/cmd/exit.c
@@ -7,6 +7,17 @@
 #include <common.h>
 #include <command.h>
 
+static int do_continue(struct cmd_tbl *cmdtp, int flag, int argc,
+		       char *const argv[])
+{
+	while (true) {
+		if (getchar())
+			break;
+	}
+
+	return 0;
+}
+
 static int do_exit(struct cmd_tbl *cmdtp, int flag, int argc,
 		   char *const argv[])
 {
@@ -19,6 +30,12 @@ static int do_exit(struct cmd_tbl *cmdtp, int flag, int argc,
 	return -r - 2;
 }
 
+U_BOOT_CMD(
+	continue,	1,	0,	do_continue,
+	"continue script on key pressed",
+	""
+);
+
 U_BOOT_CMD(
 	exit,	2,	1,	do_exit,
 	"exit script",
-- 
2.25.1