[people/ms/u-boot.git] / cmd / display.c

/*
 * (C) Copyright 2005
 * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
 *
 * SPDX-License-Identifier:	GPL-2.0+
 */

#include <common.h>
#include <command.h>
#include <led-display.h>

#undef DEBUG_DISP

int do_display (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
{
	int i;

	/* Clear display */
	display_set(DISPLAY_CLEAR | DISPLAY_HOME);

	if (argc < 2)
		return (0);

	for (i = 1; i < argc; i++) {
		char *p = argv[i];

		if (i > 1) { /* Insert a space between strings */
			display_putc(' ');
		}

		while ((*p)) {
#ifdef DEBUG_DISP
			putc(*p);
#endif
			display_putc(*p++);
		}
	}

#ifdef DEBUG_DISP
	putc('\n');
#endif

	return (0);
}

/***************************************************/

U_BOOT_CMD(
	display,	CONFIG_SYS_MAXARGS,	1,	do_display,
	"display string on dot matrix display",
	"[<string>]\n"
	"    - with <string> argument: display <string> on dot matrix display\n"
	"    - without arguments: clear dot matrix display"
);
Commit	Line	Data
	1	/*
	2	* (C) Copyright 2005
	3	* Wolfgang Denk, DENX Software Engineering, wd@denx.de.
	4	*
	5	* SPDX-License-Identifier: GPL-2.0+
	6	*/
	7
	8	#include <common.h>
	9	#include <command.h>
	10	#include <led-display.h>
	11
	12	#undef DEBUG_DISP
	13
	14	int do_display (cmd_tbl_t cmdtp, int flag, int argc, char const argv[])
	15	{
	16	int i;
	17
	18	/* Clear display */
	19	display_set(DISPLAY_CLEAR \| DISPLAY_HOME);
	20
	21	if (argc < 2)
	22	return (0);
	23
	24	for (i = 1; i < argc; i++) {
	25	char *p = argv[i];
	26
	27	if (i > 1) { /* Insert a space between strings */
	28	display_putc(' ');
	29	}
	30
	31	while ((*p)) {
	32	#ifdef DEBUG_DISP
	33	putc(*p);
	34	#endif
	35	display_putc(*p++);
	36	}
	37	}
	38
	39	#ifdef DEBUG_DISP
	40	putc('\n');
	41	#endif
	42
	43	return (0);
	44	}
	45
	46	/***************************************************/
	47
	48	U_BOOT_CMD(
	49	display, CONFIG_SYS_MAXARGS, 1, do_display,
	50	"display string on dot matrix display",
	51	"[<string>]\n"
	52	" - with <string> argument: display <string> on dot matrix display\n"
	53	" - without arguments: clear dot matrix display"
	54	);