X-Git-Url: http://cloudbase.mooo.com/gitweb/z180-stamp.git/blobdiff_plain/05437fb4cdb907816a4fc3ffafa2617fcf33266a..b30c4e8f1aef96f6fdc93da9f125545f5f74d06e:/avr/con-utils.c?ds=sidebyside

diff --git a/avr/con-utils.c b/avr/con-utils.c
index b8017ed..4a96771 100644
--- a/avr/con-utils.c
+++ b/avr/con-utils.c
@@ -1,7 +1,14 @@
+/*
+ * (C) Copyright 2014 Leo C. <erbl259-lmu@yahoo.de>
+ *
+ * SPDX-License-Identifier:	GPL-2.0+
+ */
 
-#include <string.h>
 #include "common.h"
+#include <string.h>
+#include <avr/wdt.h>
 
+#include "config.h"
 #include "serial.h"
 #include "background.h"
 #include "con-utils.h"
@@ -15,12 +22,37 @@ uint_fast8_t tstc(void)
 int my_getchar(uint_fast8_t waitforchar)
 {
 	int c;
-	
+
 	do {
 		bg_shed();
 		c = serial_getc();
 	} while ((c < 0) && waitforchar);
 
+#ifdef CONFIG_SYS_FBOOTSIG
+	if (c < 0)
+		return c;
+
+	static const FLASH unsigned char bootsig[] = {CONFIG_SYS_FBOOTSIG};
+	static uint8_t pb;
+	unsigned char uc = c;
+
+
+	if (bootsig[pb] == 0) {
+		if (uc == 0xff) {
+			wdt_enable(WDTO_15MS);
+			for(;;)
+				;
+		} else
+			pb = 0;
+
+	} else {
+		if (bootsig[pb] == uc)
+			pb++;
+		else
+			pb = 0;
+	}
+#endif
+
 	return c;
 }
 
@@ -32,6 +64,7 @@ static uint_fast8_t ctrlc_was_pressed;
 
 uint_fast8_t ctrlc(void)
 {
+	bg_shed();
 	if (!ctrlc_disabled) {
 		switch (serial_getc()) {
 		case 0x03:		/* ^C - Control C */
@@ -92,4 +125,3 @@ void clear_ctrlc(void)
 {
 	ctrlc_was_pressed = 0;
 }
-