X-Git-Url: http://git.linex4red.de/pub/USBasp.git/blobdiff_plain/de9bd767dc8578a45a195fb1e37dd4ff26ae9567..385ffb6de3cc85462be82f14eeb580d6b66bc5e7:/Bootloaders/DFU/BootloaderDFU.c

diff --git a/Bootloaders/DFU/BootloaderDFU.c b/Bootloaders/DFU/BootloaderDFU.c
index 113bea748..3ce2a6285 100644
--- a/Bootloaders/DFU/BootloaderDFU.c
+++ b/Bootloaders/DFU/BootloaderDFU.c
@@ -1,13 +1,13 @@
 /*
              LUFA Library
-     Copyright (C) Dean Camera, 2011.
+     Copyright (C) Dean Camera, 2012.
 
   dean [at] fourwalledcubicle [dot] com
            www.lufa-lib.org
 */
 
 /*
-  Copyright 2011  Dean Camera (dean [at] fourwalledcubicle [dot] com)
+  Copyright 2012  Dean Camera (dean [at] fourwalledcubicle [dot] com)
 
   Permission to use, copy, modify, distribute, and sell this
   software and its documentation for any purpose is hereby granted
@@ -87,7 +87,7 @@ static uint8_t Flash64KBPage = 0;
  */
 static uint16_t StartAddr = 0x0000;
 
-/** Memory end address, indicating the end address to read to/write from in the memory being addressed (either FLASH
+/** Memory end address, indicating the end address to read from/write to in the memory being addressed (either FLASH
  *  of EEPROM depending on the issued command from the host).
  */
 static uint16_t EndAddr = 0x0000;
@@ -113,12 +113,15 @@ int main(void)
 
 	/* If the TCK pin is not jumpered to ground, start the user application instead */
 	RunBootloader = (!(PINF & (1 << 4)));
-	
+
 	/* Re-enable JTAG debugging */
 	MCUCR &= ~(1 << JTD);
-	MCUCR &= ~(1 << JTD);	
+	MCUCR &= ~(1 << JTD);
 	#endif
 
+	/* Turn on first LED on the board to indicate that the bootloader has started */
+	LEDs_SetAllLEDs(LEDS_LED1);
+
 	/* Enable global interrupts so that the USB stack can function */
 	sei();
 
@@ -134,7 +137,7 @@ int main(void)
 }
 
 /** Configures all hardware required for the bootloader. */
-void SetupHardware(void)
+static void SetupHardware(void)
 {
 	/* Disable watchdog if enabled by bootloader/fuses */
 	MCUSR &= ~(1 << WDRF);
@@ -147,30 +150,39 @@ void SetupHardware(void)
 	MCUCR = (1 << IVCE);
 	MCUCR = (1 << IVSEL);
 
-	/* Initialize the USB subsystem */
+	/* Initialize the USB and other board hardware drivers */
 	USB_Init();
+	LEDs_Init();
+
+	/* Bootloader active LED toggle timer initialization */
+	TIMSK1 = (1 << TOIE1);
+	TCCR1B = ((1 << CS11) | (1 << CS10));
 }
 
 /** Resets all configured hardware required for the bootloader back to their original states. */
-void ResetHardware(void)
+static void ResetHardware(void)
 {
-	/* Shut down the USB subsystem */
+	/* Shut down the USB and other board hardware drivers */
 	USB_Disable();
+	LEDs_Disable();
 
 	/* Relocate the interrupt vector table back to the application section */
 	MCUCR = (1 << IVCE);
 	MCUCR = 0;
 }
 
+/** ISR to periodically toggle the LEDs on the board to indicate that the bootloader is active. */
+ISR(TIMER1_OVF_vect, ISR_BLOCK)
+{
+	LEDs_ToggleLEDs(LEDS_LED1 | LEDS_LED2);
+}
+
 /** Event handler for the USB_ControlRequest event. This is used to catch and process control requests sent to
  *  the device from the USB host before passing along unhandled control requests to the library for processing
  *  internally.
  */
 void EVENT_USB_Device_ControlRequest(void)
 {
-	/* Get the size of the command and data from the wLength value */
-	SentCommand.DataSize = USB_ControlRequest.wLength;
-	
 	/* Ignore any requests that aren't directed to the DFU interface */
 	if ((USB_ControlRequest.bmRequestType & (CONTROL_REQTYPE_TYPE | CONTROL_REQTYPE_RECIPIENT)) !=
 	    (REQTYPE_CLASS | REQREC_INTERFACE))
@@ -178,6 +190,12 @@ void EVENT_USB_Device_ControlRequest(void)
 		return;
 	}
 
+	/* Activity - toggle indicator LEDs */
+	LEDs_ToggleLEDs(LEDS_LED1 | LEDS_LED2);
+
+	/* Get the size of the command and data from the wLength value */
+	SentCommand.DataSize = USB_ControlRequest.wLength;
+
 	switch (USB_ControlRequest.bRequest)
 	{
 		case DFU_REQ_DNLOAD: