X-Git-Url: http://git.linex4red.de/pub/USBasp.git/blobdiff_plain/899df7d3318e478859d940ec8debe679888476a5..69ecaae732b8394d78e9eaff5caf9b6f677b75e7:/Bootloaders/CDC/BootloaderCDC.c

diff --git a/Bootloaders/CDC/BootloaderCDC.c b/Bootloaders/CDC/BootloaderCDC.c
index 8e6a58b0a..a7fc883cf 100644
--- a/Bootloaders/CDC/BootloaderCDC.c
+++ b/Bootloaders/CDC/BootloaderCDC.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
@@ -66,6 +66,9 @@ int main(void)
 	/* Setup hardware required for the bootloader */
 	SetupHardware();
 
+	/* 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();
 
@@ -85,7 +88,7 @@ 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);
@@ -98,8 +101,19 @@ void SetupHardware(void)
 	MCUCR = (1 << IVCE);
 	MCUCR = (1 << IVSEL);
 
-	/* Initialize 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));
+}
+
+/** 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_ConfigurationChanged event. This configures the device's endpoints ready
@@ -108,17 +122,12 @@ void SetupHardware(void)
 void EVENT_USB_Device_ConfigurationChanged(void)
 {
 	/* Setup CDC Notification, Rx and Tx Endpoints */
-	Endpoint_ConfigureEndpoint(CDC_NOTIFICATION_EPNUM, EP_TYPE_INTERRUPT,
-	                           ENDPOINT_DIR_IN, CDC_NOTIFICATION_EPSIZE,
-	                           ENDPOINT_BANK_SINGLE);
+	Endpoint_ConfigureEndpoint(CDC_NOTIFICATION_EPADDR, EP_TYPE_INTERRUPT,
+	                           CDC_NOTIFICATION_EPSIZE, 1);
 
-	Endpoint_ConfigureEndpoint(CDC_TX_EPNUM, EP_TYPE_BULK,
-	                           ENDPOINT_DIR_IN, CDC_TXRX_EPSIZE,
-	                           ENDPOINT_BANK_SINGLE);
+	Endpoint_ConfigureEndpoint(CDC_TX_EPADDR, EP_TYPE_BULK, CDC_TXRX_EPSIZE, 1);
 
-	Endpoint_ConfigureEndpoint(CDC_RX_EPNUM, EP_TYPE_BULK,
-	                           ENDPOINT_DIR_OUT, CDC_TXRX_EPSIZE,
-	                           ENDPOINT_BANK_SINGLE);
+	Endpoint_ConfigureEndpoint(CDC_RX_EPADDR, EP_TYPE_BULK, CDC_TXRX_EPSIZE, 1);
 }
 
 /** Event handler for the USB_ControlRequest event. This is used to catch and process control requests sent to
@@ -134,6 +143,9 @@ void EVENT_USB_Device_ControlRequest(void)
 		return;
 	}
 
+	/* Activity - toggle indicator LEDs */
+	LEDs_ToggleLEDs(LEDS_LED1 | LEDS_LED2);
+
 	/* Process CDC specific control requests */
 	switch (USB_ControlRequest.bRequest)
 	{
@@ -249,7 +261,7 @@ static void ReadWriteMemoryBlock(const uint8_t Command)
 				{
 					LowByte = FetchNextCommandByte();
 				}
-				
+
 				HighByte = !HighByte;
 			}
 			else
@@ -286,7 +298,7 @@ static void ReadWriteMemoryBlock(const uint8_t Command)
 static uint8_t FetchNextCommandByte(void)
 {
 	/* Select the OUT endpoint so that the next data byte can be read */
-	Endpoint_SelectEndpoint(CDC_RX_EPNUM);
+	Endpoint_SelectEndpoint(CDC_RX_EPADDR);
 
 	/* If OUT endpoint empty, clear it and wait for the next packet from the host */
 	while (!(Endpoint_IsReadWriteAllowed()))
@@ -312,7 +324,7 @@ static uint8_t FetchNextCommandByte(void)
 static void WriteNextResponseByte(const uint8_t Response)
 {
 	/* Select the IN endpoint so that the next data byte can be written */
-	Endpoint_SelectEndpoint(CDC_TX_EPNUM);
+	Endpoint_SelectEndpoint(CDC_TX_EPADDR);
 
 	/* If IN endpoint full, clear it and wait until ready for the next packet to the host */
 	if (!(Endpoint_IsReadWriteAllowed()))
@@ -333,10 +345,10 @@ static void WriteNextResponseByte(const uint8_t Response)
 /** Task to read in AVR910 commands from the CDC data OUT endpoint, process them, perform the required actions
  *  and send the appropriate response back to the host.
  */
-void CDC_Task(void)
+static void CDC_Task(void)
 {
 	/* Select the OUT endpoint */
-	Endpoint_SelectEndpoint(CDC_RX_EPNUM);
+	Endpoint_SelectEndpoint(CDC_RX_EPADDR);
 
 	/* Check if endpoint has a command in it sent from the host */
 	if (!(Endpoint_IsOUTReceived()))
@@ -348,7 +360,7 @@ void CDC_Task(void)
 	if (Command == 'E')
 	{
 		RunBootloader = false;
-	
+
 		/* Send confirmation byte back to the host */
 		WriteNextResponseByte('\r');
 	}
@@ -532,7 +544,7 @@ void CDC_Task(void)
 	}
 
 	/* Select the IN endpoint */
-	Endpoint_SelectEndpoint(CDC_TX_EPNUM);
+	Endpoint_SelectEndpoint(CDC_TX_EPADDR);
 
 	/* Remember if the endpoint is completely full before clearing it */
 	bool IsEndpointFull = !(Endpoint_IsReadWriteAllowed());
@@ -560,7 +572,7 @@ void CDC_Task(void)
 	}
 
 	/* Select the OUT endpoint */
-	Endpoint_SelectEndpoint(CDC_RX_EPNUM);
+	Endpoint_SelectEndpoint(CDC_RX_EPADDR);
 
 	/* Acknowledge the command from the host */
 	Endpoint_ClearOUT();