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authorIlya Yanok <yanok@emcraft.com>2010-09-09 23:03:32 +0200
committerWolfgang Denk <wd@denx.de>2010-10-12 22:44:33 +0200
commit7f0d241d5ce8c7d0dff49f74498bf5708002424e (patch)
treeb387723c6e648381087103c11e9e95ee28f772a0 /common
parent9531a2388ccaeaabb33a359a0bbf2e1d792c7dde (diff)
led_display: split led display support into generic and hw-dependent parts
Split the display command into generic interface and hardware-specific realization for PDSP188x LED display found on hmi1001 and manroland boards. Simple interface for LED displays is defined in include/led-display.h and described in doc/README.LED_display. Driver-specific implementation was moved into drivers/misc/pdsp188x.c file (enabled with CONFIG_PDSP188x set). Signed-off-by: Ilya Yanok <yanok@emcraft.com>
Diffstat (limited to 'common')
-rw-r--r--common/cmd_display.c26
1 files changed, 9 insertions, 17 deletions
diff --git a/common/cmd_display.c b/common/cmd_display.c
index 6c11aa6e3e0..d5d5d8c31d7 100644
--- a/common/cmd_display.c
+++ b/common/cmd_display.c
@@ -23,40 +23,32 @@
#include <common.h>
#include <command.h>
+#include <led-display.h>
#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 * const argv[])
{
int i;
- int pos;
/* Clear display */
- *((volatile char*)(CONFIG_SYS_DISP_CWORD)) = CWORD_CLEAR;
- udelay(1000 * CLEAR_DELAY);
+ display_set(DISPLAY_CLEAR | DISPLAY_HOME);
if (argc < 2)
return (0);
- for (pos = 0, i = 1; i < argc && pos < DISP_SIZE; i++) {
- char *p = argv[i], c;
+ for (i = 1; i < argc; i++) {
+ char *p = argv[i];
- if (i > 1) {
- *((volatile uchar *) (CONFIG_SYS_DISP_CHR_RAM + pos++)) = ' ';
-#ifdef DEBUG_DISP
- putc(' ');
-#endif
+ if (i > 1) { /* Insert a space between strings */
+ display_putc(' ');
}
- while ((c = *p++) != '\0' && pos < DISP_SIZE) {
- *((volatile uchar *) (CONFIG_SYS_DISP_CHR_RAM + pos++)) = c;
+ while ((*p)) {
#ifdef DEBUG_DISP
- putc(c);
+ putc(*p);
#endif
+ display_putc(*p++);
}
}