Minor documentation improvements.

[pub/USBasp.git] / Bootloaders / DFU / BootloaderDFU.c

diff --git a/Bootloaders/DFU/BootloaderDFU.c b/Bootloaders/DFU/BootloaderDFU.c
index ce4e459..04b52f3 100644 (file)
--- a/Bootloaders/DFU/BootloaderDFU.c
+++ b/Bootloaders/DFU/BootloaderDFU.c
@@ -1,13 +1,13 @@
 /*
              LUFA Library
 /*
              LUFA Library

-     Copyright (C) Dean Camera, 2010.
+     Copyright (C) Dean Camera, 2011.

 
   dean [at] fourwalledcubicle [dot] com
            www.lufa-lib.org
 */
 
 /*
 
   dean [at] fourwalledcubicle [dot] com
            www.lufa-lib.org
 */
 
 /*

-  Copyright 2010  Dean Camera (dean [at] fourwalledcubicle [dot] com)
+  Copyright 2011  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
 
   Permission to use, copy, modify, distribute, and sell this
   software and its documentation for any purpose is hereby granted


@@ -102,6 +102,23 @@ int main(void)
        /* Configure hardware required by the bootloader */
        SetupHardware();
 
        /* Configure hardware required by the bootloader */
        SetupHardware();
 

+       #if ((BOARD == BOARD_XPLAIN) || (BOARD == BOARD_XPLAIN_REV1))
+       /* Disable JTAG debugging */
+       MCUCR |= (1 << JTD);
+       MCUCR |= (1 << JTD);
+
+       /* Enable pull-up on the JTAG TCK pin so we can use it to select the mode */
+       PORTF |= (1 << 4);
+       _delay_ms(10);
+
+       /* 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);   
+       #endif
+

        /* Enable global interrupts so that the USB stack can function */
        sei();
 
        /* Enable global interrupts so that the USB stack can function */
        sei();
 


@@ -153,6 +170,13 @@ void EVENT_USB_Device_ControlRequest(void)
 {
        /* Get the size of the command and data from the wLength value */
        SentCommand.DataSize = USB_ControlRequest.wLength;
 {
        /* 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))
+       {
+               return;
+       }

 
        switch (USB_ControlRequest.bRequest)
        {
 
        switch (USB_ControlRequest.bRequest)
        {