added support for partial flash resets

3 files changed, 13 insertions, 7 deletions

diff --git a/flash.c b/flash.c
index e6565f5..6eaf6aa 100644
--- a/flash.c
+++ b/flash.c
@@ -695,8 +695,8 @@ static void initFlashValues(FlashStruct *mem)
 	mem->extended_relay_delay_in_sec=0.5;
 
 	mem->wait_states_after_sock_init=10000;
-	/*0123456789012345678901234567890123456789*/
-	strcpy(mem->aux_error_message,"incorrect polarity - output disabled.");
+				     /*0123456789012345678901234567890123456789*/
+	strcpy(mem->aux_error_message,"PRF too high! Output disabled.");
 
 
 	/* default PW DACs */
@@ -735,17 +735,23 @@ static void initFlashValues(FlashStruct *mem)
 }
 
 
-void initFlash(FlashStruct *mem)
+void initFlash(FlashStruct *mem, int starting_location)
 {
 	int read_size = readUserBlock(mem);
 
-	if ((read_size == 0) || (mem->fully_programmed == Not_Programmed)) {
+	if (	(read_size == 0) ||
+		(mem->fully_programmed == Not_Programmed) ||
+		((starting_location > 0) && (starting_location < sizeof(*mem)))	) {
 
 		// uninitialized device!
 		initFlashValues(mem);
 
 		// save the default Flash config, for nonvolatile persistence
-		writeUserBlock(mem, 0, sizeof(*mem));
+		writeUserBlock(mem, starting_location, sizeof(*mem) - starting_location);
+
+		if (starting_location > 0) {
+			readUserBlock(mem);
+		}
 	}
 }
 
diff --git a/flash.h b/flash.h
index c1de542..183e932 100644
--- a/flash.h
+++ b/flash.h
@@ -3,7 +3,7 @@
 
 #include "globals.h"
 
-void initFlash(FlashStruct *mem);
+void initFlash(FlashStruct *mem, int starting_location);
 int readUserBlock(FlashStruct *mem);
 void writeUserBlock(FlashStruct *mem, int addr, int numbytes);
 
diff --git a/instr-daemon.c b/instr-daemon.c
index b9bbd4d..8205c9a 100644
--- a/instr-daemon.c
+++ b/instr-daemon.c
@@ -231,7 +231,7 @@ int main(int argc, char **argv)
 
 	LCD_initialize();
 	bus_init();
-	initFlash (&globals.Flash);
+	initFlash (&globals.Flash, 0);
 
 	//register stdin channel
 	stdinChannel = g_io_channel_unix_new(0);