From 0223e595f4033e91e93403a7317bcc9e47676b8f Mon Sep 17 00:00:00 2001 From: Timothy Pearson Date: Wed, 23 Aug 2017 15:54:21 -0500 Subject: Initial import of modified u-boot tree Original upstream URL: git://git.denx.de/u-boot.git Original upstream GIT hash: 62c175fbb8a0f9a926c88294ea9f7e88eb898f6c --- common/cmd_display.c | 70 ++++++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 70 insertions(+) create mode 100644 common/cmd_display.c (limited to 'common/cmd_display.c') diff --git a/common/cmd_display.c b/common/cmd_display.c new file mode 100644 index 0000000..d5d5d8c --- /dev/null +++ b/common/cmd_display.c @@ -0,0 +1,70 @@ +/* + * (C) Copyright 2005 + * Wolfgang Denk, DENX Software Engineering, wd@denx.de. + * + * See file CREDITS for list of people who contributed to this + * project. + * + * This program is free software; you can redistribute it and/or + * modify it under the terms of the GNU General Public License as + * published by the Free Software Foundation; either version 2 of + * the License, or (at your option) any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this program; if not, write to the Free Software + * Foundation, Inc., 59 Temple Place, Suite 330, Boston, + * MA 02111-1307 USA + */ + +#include +#include +#include + +#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", + "[]\n" + " - with argument: display on dot matrix display\n" + " - without arguments: clear dot matrix display" +); -- cgit v1.1