From b8a2daf8bcda528be820eb0b76e6b15961cd71c0 Mon Sep 17 00:00:00 2001
From: Zach Eveland <zeveland@blacklabel-development.com>
Date: Sun, 14 Aug 2011 16:02:16 -0400
Subject: LEDs for D13, TX, and RX are more in line with Uno-like behavior
 during sketch uploading. D13 flashes on reboot, TX and RX flash with USB data
 transfer.

---
 bootloaders/diskloader/src/DiskLoader.cpp |  4 ++++
 bootloaders/diskloader/src/Platform.h     |  8 ++++----
 bootloaders/diskloader/src/USBCore.cpp    | 13 +++++++++++--
 3 files changed, 19 insertions(+), 6 deletions(-)

(limited to 'bootloaders/diskloader/src')

diff --git a/bootloaders/diskloader/src/DiskLoader.cpp b/bootloaders/diskloader/src/DiskLoader.cpp
index 3cb5caa..bc1e026 100644
--- a/bootloaders/diskloader/src/DiskLoader.cpp
+++ b/bootloaders/diskloader/src/DiskLoader.cpp
@@ -119,6 +119,9 @@ int main(void) __attribute__ ((naked));
 //	STK500v1 main loop, very similar to optiboot in protocol and implementation
 int main()
 {
+	TXLED0;
+	RXLED0;
+	LED0;
 	BOARD_INIT();
 	USBInit();
 
@@ -236,6 +239,7 @@ void LEDPulse()
 
 void Reboot()
 {
+	/* TODO - ZE - this should probably be a WDT reset instead, right? */
 	UDCON = 1;		// Detatch USB
 	UDIEN = 0;
 	asm volatile (	// Reset vector to run firmware
diff --git a/bootloaders/diskloader/src/Platform.h b/bootloaders/diskloader/src/Platform.h
index 3f55c68..004933e 100644
--- a/bootloaders/diskloader/src/Platform.h
+++ b/bootloaders/diskloader/src/Platform.h
@@ -33,10 +33,10 @@ typedef unsigned long u32;
 #define BOARD_INIT()	DDRC |= (1<<7); DDRB |= (1<<0); DDRE |= (1<<6); CPU_PRESCALE(0); DISABLE_JTAG();
 #define LED0			PORTC &= ~(1<<7)
 #define LED1			PORTC |= (1<<7)
-#define TXLED0			PORTE &= ~(1<<6)
-#define TXLED1			PORTE |= (1<<6)
-#define RXLED0			PORTB &= ~(1<<0)
-#define RXLED1			PORTB |= (1<<0)
+#define TXLED0			PORTE |= (1<<6)
+#define TXLED1			PORTE &= ~(1<<6)
+#define RXLED0			PORTB |= (1<<0)
+#define RXLED1			PORTB &= ~(1<<0)
 
 #define TRANSFER_PGM		0x80
 #define TRANSFER_RELEASE	0x40
diff --git a/bootloaders/diskloader/src/USBCore.cpp b/bootloaders/diskloader/src/USBCore.cpp
index fbfad0e..52b960a 100644
--- a/bootloaders/diskloader/src/USBCore.cpp
+++ b/bootloaders/diskloader/src/USBCore.cpp
@@ -86,23 +86,27 @@ static inline void ClearOUT(void)
 static
 void Send(volatile const u8* data, u8 count)
 {
+	TXLED1;					// light the TX LED
 	while (count--)
 		UEDATX = *data++;
 }
 
 void Recv(volatile u8* data, u8 count)
 {
+	RXLED1;					// light the RX LED
 	while (count--)
 		*data++ = UEDATX;
 }
 
 static inline u8 Recv8()
 {
+	RXLED1;					// light the RX LED
 	return UEDATX;
 }
 
 static inline void Send8(u8 d)
 {
+	TXLED1;					// light the TX LED
 	UEDATX = d;
 }
 
@@ -506,12 +510,17 @@ int USBGetChar()
 			u8 temp = 0;
 			for (temp=100; temp; temp--) 
 				asm volatile("nop\n\t" "nop\n\t" "nop\n\t" "nop\n\t"::);			
+			RXLED0;		// we turn the RX and TX LEDs on in the relevant Send or Recv instruction
+			TXLED0;		// we turn them off here after some time has passed to ensure a minimum on time.  
 		}
 
-		if (!--_timeout)
+		if (!--_timeout) {
+			TXLED0;		// switch off the RX and TX LEDs before starting the user sketch
+			RXLED0;
 			Reboot();	// USB not connected, run firmware
+		}
 
-		LEDPulse();
+//		LEDPulse();
 	}
 	return -1;
 }
-- 
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