X-Git-Url: http://git.linex4red.de/pub/USBasp.git/blobdiff_plain/c1a1b6eeecb375259968ef6d989833312047f2d8..189d0c7e669b6a3d07ed35c1eaa0bfc8cbc7a729:/Bootloaders/TeensyHID/TeensyHID.c

diff --git a/Bootloaders/TeensyHID/TeensyHID.c b/Bootloaders/TeensyHID/TeensyHID.c
index 4f09ac50b..12d5c0de8 100644
--- a/Bootloaders/TeensyHID/TeensyHID.c
+++ b/Bootloaders/TeensyHID/TeensyHID.c
@@ -49,12 +49,33 @@ bool RunBootloader = true;
  */
 int main(void)
 {
+	/* Setup hardware required for the bootloader */
+	SetupHardware();
+	
+	while (RunBootloader)
+	  USB_USBTask();
+	
+	/* Reset all configured hardware to their default states for the user app */
+	ResetHardware();
+
+	/* Wait 100ms to give the host time to register the disconnection */
+	_delay_ms(100);
+
+	/* Enable the watchdog and force a timeout to reset the AVR */
+	wdt_enable(WDTO_250MS);
+					
+	for (;;);
+}
+
+/** Configures all hardware required for the bootloader. */
+void SetupHardware(void)
+{
 	/* Disable watchdog if enabled by bootloader/fuses */
 	MCUSR &= ~(1 << WDRF);
 	wdt_disable();
 
-	/* Disable Clock Division */
-	SetSystemClockPrescaler(0);
+	/* Disable clock division */
+	clock_prescale_set(clock_div_1);
 
 	/* Relocate the interrupt vector table to the bootloader section */
 	MCUCR = (1 << IVCE);
@@ -62,26 +83,19 @@ int main(void)
 
 	/* Initialize USB subsystem */
 	USB_Init();
-	
-	while (RunBootloader)
-	  USB_USBTask();
-	  
-	/* Shut down the USB interface, so that the host will register the disconnection */
-	USB_ShutDown();
-
-	/* Wait 100ms to give the host time to register the disconnection */
-	_delay_ms(100);
+}
 
-	/* Enable the watchdog and force a timeout to reset the AVR */
-	wdt_enable(WDTO_250MS);
-					
-	for (;;);
+/** Resets all configured hardware required for the bootloader back to their original states. */
+void ResetHardware(void)
+{
+	/* Shut down the USB subsystem */
+	USB_ShutDown();
 }
 
 /** Event handler for the USB_ConfigurationChanged event. This configures the device's endpoints ready
  *  to relay data to and from the attached USB host.
  */
-EVENT_HANDLER(USB_ConfigurationChanged)
+void EVENT_USB_ConfigurationChanged(void)
 {
 	/* Setup HID Report Endpoint */
 	Endpoint_ConfigureEndpoint(HID_EPNUM, EP_TYPE_INTERRUPT,
@@ -93,18 +107,18 @@ EVENT_HANDLER(USB_ConfigurationChanged)
  *  control requests that are not handled internally by the USB library (including the HID commands, which are
  *  all issued via the control endpoint), so that they can be handled appropriately for the application.
  */
-EVENT_HANDLER(USB_UnhandledControlPacket)
+void EVENT_USB_UnhandledControlPacket(void)
 {
 	/* Handle HID Class specific requests */
-	switch (bRequest)
+	switch (USB_ControlRequest.bRequest)
 	{
 		case REQ_SetReport:
-			if (bmRequestType == (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE))
+			if (USB_ControlRequest.bmRequestType == (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE))
 			{
-				Endpoint_ClearSetupReceived();
+				Endpoint_ClearSETUP();
 				
 				/* Wait until the command (report) has been sent by the host */
-				while (!(Endpoint_IsSetupOUTReceived()));
+				while (!(Endpoint_IsOUTReceived()));
 
 				/* Read in the write destination address */
 				uint16_t PageAddress = Endpoint_Read_Word_LE();
@@ -126,8 +140,8 @@ EVENT_HANDLER(USB_UnhandledControlPacket)
 						/* Check if endpoint is empty - if so clear it and wait until ready for next packet */
 						if (!(Endpoint_BytesInEndpoint()))
 						{
-							Endpoint_ClearSetupOUT();
-							while (!(Endpoint_IsSetupOUTReceived()));
+							Endpoint_ClearOUT();
+							while (!(Endpoint_IsOUTReceived()));
 						}
 
 						/* Write the next data word to the FLASH page */
@@ -142,13 +156,11 @@ EVENT_HANDLER(USB_UnhandledControlPacket)
 					boot_rww_enable();
 				}
 
-				Endpoint_ClearSetupOUT();
+				Endpoint_ClearOUT();
 
-				/* Wait until the host is ready to receive the request confirmation */
-				while (!(Endpoint_IsSetupINReady()));
-				
-				/* Handshake the request by sending an empty IN packet */
-				Endpoint_ClearSetupIN();
+				/* Acknowledge status stage */
+				while (!(Endpoint_IsINReady()));
+				Endpoint_ClearIN();
 			}
 			
 			break;