diff options
Diffstat (limited to 'common')
| -rw-r--r-- | common/Makefile | 9 | ||||
| -rw-r--r-- | common/cmd_display.c | 82 |
2 files changed, 88 insertions, 3 deletions
diff --git a/common/Makefile b/common/Makefile index 209e17d..b5396ce 100644 --- a/common/Makefile +++ b/common/Makefile @@ -31,7 +31,7 @@ COBJS = main.o ACEX1K.o altera.o bedbug.o circbuf.o \ cmd_ace.o cmd_autoscript.o \ cmd_bdinfo.o cmd_bedbug.o cmd_bmp.o cmd_boot.o cmd_bootm.o \ cmd_cache.o cmd_console.o \ - cmd_date.o cmd_dcr.o cmd_diag.o cmd_doc.o cmd_dtt.o \ + cmd_date.o cmd_dcr.o cmd_diag.o cmd_display.o cmd_doc.o cmd_dtt.o \ cmd_eeprom.o cmd_elf.o cmd_ext2.o \ cmd_fat.o cmd_fdc.o cmd_fdos.o cmd_flash.o cmd_fpga.o \ cmd_i2c.o cmd_ide.o cmd_immap.o cmd_itest.o cmd_jffs2.o \ @@ -39,10 +39,13 @@ COBJS = main.o ACEX1K.o altera.o bedbug.o circbuf.o \ cmd_mem.o cmd_mii.o cmd_misc.o cmd_mmc.o \ cmd_nand.o cmd_net.o cmd_nvedit.o \ cmd_pci.o cmd_pcmcia.o cmd_portio.o \ - cmd_reginfo.o cmd_reiser.o cmd_scsi.o cmd_spi.o cmd_universe.o cmd_usb.o cmd_vfd.o \ + cmd_reginfo.o cmd_reiser.o cmd_scsi.o cmd_spi.o cmd_universe.o \ + cmd_usb.o cmd_vfd.o \ command.o console.o devices.o dlmalloc.o docecc.o \ environment.o env_common.o \ - env_nand.o env_dataflash.o env_flash.o env_eeprom.o env_nvram.o env_nowhere.o exports.o \ + env_nand.o env_dataflash.o env_flash.o env_eeprom.o \ + env_nvram.o env_nowhere.o \ + exports.o \ flash.o fpga.o \ hush.o kgdb.o lcd.o lists.o lynxkdi.o \ memsize.o miiphybb.o miiphyutil.o \ diff --git a/common/cmd_display.c b/common/cmd_display.c new file mode 100644 index 0000000..abee844 --- /dev/null +++ b/common/cmd_display.c @@ -0,0 +1,82 @@ +/* + * (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 <common.h> +#include <command.h> + +#if (CONFIG_COMMANDS & CFG_CMD_DISPLAY) + +#undef DEBUG_DISP + +#define DISP_SIZE 8 +#define CWORD_CLEAR 0x80 +#define CLEAR_DELAY (110 * 2) + +int do_display (cmd_tbl_t *cmdtp, int flag, int argc, char *argv[]) +{ + int i; + int pos; + + /* Clear display */ + *((volatile char*)(CFG_DISP_CWORD)) = CWORD_CLEAR; + udelay(1000 * CLEAR_DELAY); + + if (argc < 2) + return (0); + + for (pos = 0, i = 1; i < argc && pos < DISP_SIZE; i++) { + char *p = argv[i], c; + + if (i > 1) { + *((volatile uchar *) (CFG_DISP_CHR_RAM + pos++)) = ' '; +#ifdef DEBUG_DISP + putc(' '); +#endif + } + + while ((c = *p++) != '\0' && pos < DISP_SIZE) { + *((volatile uchar *) (CFG_DISP_CHR_RAM + pos++)) = c; +#ifdef DEBUG_DISP + putc(c); +#endif + } + } + +#ifdef DEBUG_DISP + putc('\n'); +#endif + + return (0); +} + +/***************************************************/ + +U_BOOT_CMD( + display, CFG_MAXARGS, 1, do_display, + "display- display string on dot matrix display\n", + "[<string>]\n" + " - with <string> argument: display <string> on dot matrix display\n" + " - without arguments: clear dot matrix display\n" +); + +#endif /* CFG_CMD_DISPLAY */ |