1*4882a593Smuzhiyun /*
2*4882a593Smuzhiyun * (C) Copyright 2005
3*4882a593Smuzhiyun * Wolfgang Denk, DENX Software Engineering, wd@denx.de.
4*4882a593Smuzhiyun *
5*4882a593Smuzhiyun * SPDX-License-Identifier: GPL-2.0+
6*4882a593Smuzhiyun */
7*4882a593Smuzhiyun
8*4882a593Smuzhiyun #include <common.h>
9*4882a593Smuzhiyun #include <command.h>
10*4882a593Smuzhiyun #include <led-display.h>
11*4882a593Smuzhiyun
12*4882a593Smuzhiyun #undef DEBUG_DISP
13*4882a593Smuzhiyun
do_display(cmd_tbl_t * cmdtp,int flag,int argc,char * const argv[])14*4882a593Smuzhiyun int do_display (cmd_tbl_t *cmdtp, int flag, int argc, char * const argv[])
15*4882a593Smuzhiyun {
16*4882a593Smuzhiyun int i;
17*4882a593Smuzhiyun
18*4882a593Smuzhiyun /* Clear display */
19*4882a593Smuzhiyun display_set(DISPLAY_CLEAR | DISPLAY_HOME);
20*4882a593Smuzhiyun
21*4882a593Smuzhiyun if (argc < 2)
22*4882a593Smuzhiyun return (0);
23*4882a593Smuzhiyun
24*4882a593Smuzhiyun for (i = 1; i < argc; i++) {
25*4882a593Smuzhiyun char *p = argv[i];
26*4882a593Smuzhiyun
27*4882a593Smuzhiyun if (i > 1) { /* Insert a space between strings */
28*4882a593Smuzhiyun display_putc(' ');
29*4882a593Smuzhiyun }
30*4882a593Smuzhiyun
31*4882a593Smuzhiyun while ((*p)) {
32*4882a593Smuzhiyun #ifdef DEBUG_DISP
33*4882a593Smuzhiyun putc(*p);
34*4882a593Smuzhiyun #endif
35*4882a593Smuzhiyun display_putc(*p++);
36*4882a593Smuzhiyun }
37*4882a593Smuzhiyun }
38*4882a593Smuzhiyun
39*4882a593Smuzhiyun #ifdef DEBUG_DISP
40*4882a593Smuzhiyun putc('\n');
41*4882a593Smuzhiyun #endif
42*4882a593Smuzhiyun
43*4882a593Smuzhiyun return (0);
44*4882a593Smuzhiyun }
45*4882a593Smuzhiyun
46*4882a593Smuzhiyun /***************************************************/
47*4882a593Smuzhiyun
48*4882a593Smuzhiyun U_BOOT_CMD(
49*4882a593Smuzhiyun display, CONFIG_SYS_MAXARGS, 1, do_display,
50*4882a593Smuzhiyun "display string on dot matrix display",
51*4882a593Smuzhiyun "[<string>]\n"
52*4882a593Smuzhiyun " - with <string> argument: display <string> on dot matrix display\n"
53*4882a593Smuzhiyun " - without arguments: clear dot matrix display"
54*4882a593Smuzhiyun );
55