[PATCH 08/12] commands: add macro to simplify defining one shot commands

[Ahmad Fatoum]

For development, it can be nice to just be able to call a function as-is
from the command line. Add a helper to facilitate this.

Signed-off-by: Ahmad Fatoum <a.fatoum at pengutronix.de>
---
 include/command.h | 15 +++++++++++++++
 1 file changed, 15 insertions(+)

diff --git a/include/command.h b/include/command.h
index 26e06077b071..ae8821969c60 100644
--- a/include/command.h
+++ b/include/command.h
@@ -119,4 +119,19 @@ static const __maybe_unused char cmd_##_name##_help[] =
 
 int register_command(struct command *);
 
+#define DEFINE_SIMPLE_COMMAND(func) \
+	struct string_list; \
+	int empty_complete(struct string_list *sl, char *instr); \
+	static int do_simple_command_##func(int argc, char *argv[]) \
+	{ \
+		func(); \
+		return 0; \
+	} \
+	BAREBOX_CMD_START(func) \
+		.cmd		= do_simple_command_##func, \
+		BAREBOX_CMD_DESC("call " # func "()") \
+		BAREBOX_CMD_GROUP(CMD_GRP_INFO) \
+		BAREBOX_CMD_COMPLETE(empty_complete) \
+	BAREBOX_CMD_END
+
 #endif	/* __COMMAND_H */
-- 
2.39.5