Moved all source to the trunk directory.

2009-02-23 07:08:15 +00:00 · 2009-02-23 07:08:15 +00:00 · c1a1b6eeec
commit c1a1b6eeec
parent 4bc7e909f9
25 changed files with 9633 additions and 0 deletions
--- a/Bootloaders/TeensyHID/TeensyHID.c
+++ b/Bootloaders/TeensyHID/TeensyHID.c
@ -0,0 +1,156 @@
+/*
+             LUFA Library
+     Copyright (C) Dean Camera, 2009.
+              
+  dean [at] fourwalledcubicle [dot] com
+      www.fourwalledcubicle.com
+*/
+
+/*
+  Copyright 2009  Dean Camera (dean [at] fourwalledcubicle [dot] com)
+
+  Permission to use, copy, modify, and distribute this software
+  and its documentation for any purpose and without fee is hereby
+  granted, provided that the above copyright notice appear in all
+  copies and that both that the copyright notice and this
+  permission notice and warranty disclaimer appear in supporting
+  documentation, and that the name of the author not be used in
+  advertising or publicity pertaining to distribution of the
+  software without specific, written prior permission.
+
+  The author disclaim all warranties with regard to this
+  software, including all implied warranties of merchantability
+  and fitness.  In no event shall the author be liable for any
+  special, indirect or consequential damages or any damages
+  whatsoever resulting from loss of use, data or profits, whether
+  in an action of contract, negligence or other tortious action,
+  arising out of or in connection with the use or performance of
+  this software.
+*/
+
+/** \file
+ *
+ *  Main source file for the TeensyHID bootloader. This file contains the complete bootloader logic.
+ */
+ 
+#define  INCLUDE_FROM_TEENSYHID_C
+#include "TeensyHID.h"
+
+/* Global Variables: */
+/** Flag to indicate if the bootloader should be running, or should exit and allow the application code to run
+ *  via a soft reset. When cleared, the bootloader will abort, the USB interface will shut down and the application
+ *  started via a forced watchdog reset.
+ */
+bool RunBootloader = true;
+
+
+/** Main program entry point. This routine configures the hardware required by the bootloader, then continuously 
+ *  runs the bootloader processing routine until instructed to soft-exit.
+ */
+int main(void)
+{
+	/* Disable watchdog if enabled by bootloader/fuses */
+	MCUSR &= ~(1 << WDRF);
+	wdt_disable();
+
+	/* Disable Clock Division */
+	SetSystemClockPrescaler(0);
+
+	/* Relocate the interrupt vector table to the bootloader section */
+	MCUCR = (1 << IVCE);
+	MCUCR = (1 << IVSEL);
+
+	/* 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 (;;);
+}
+
+/** 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)
+{
+	/* Setup HID Report Endpoint */
+	Endpoint_ConfigureEndpoint(HID_EPNUM, EP_TYPE_INTERRUPT,
+		                       ENDPOINT_DIR_IN, HID_EPSIZE,
+	                           ENDPOINT_BANK_SINGLE);
+}
+
+/** Event handler for the USB_UnhandledControlPacket event. This is used to catch standard and class specific
+ *  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)
+{
+	/* Handle HID Class specific requests */
+	switch (bRequest)
+	{
+		case REQ_SetReport:
+			if (bmRequestType == (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE))
+			{
+				Endpoint_ClearSetupReceived();
+				
+				/* Wait until the command (report) has been sent by the host */
+				while (!(Endpoint_IsSetupOUTReceived()));
+
+				/* Read in the write destination address */
+				uint16_t PageAddress = Endpoint_Read_Word_LE();
+				
+				/* Check if the command is a program page command, or a start application command */
+				if (PageAddress == TEENSY_STARTAPPLICATION)
+				{
+					RunBootloader = false;
+				}
+				else
+				{
+					/* Erase the given FLASH page, ready to be programmed */
+					boot_page_erase(PageAddress);
+					boot_spm_busy_wait();
+					
+					/* Write each of the FLASH page's bytes in sequence */
+					for (uint8_t PageByte = 0; PageByte < 128; PageByte += 2)
+					{
+						/* Check if endpoint is empty - if so clear it and wait until ready for next packet */
+						if (!(Endpoint_BytesInEndpoint()))
+						{
+							Endpoint_ClearSetupOUT();
+							while (!(Endpoint_IsSetupOUTReceived()));
+						}
+
+						/* Write the next data word to the FLASH page */
+						boot_page_fill(PageAddress + PageByte, Endpoint_Read_Word_LE());
+					}
+
+					/* Write the filled FLASH page to memory */
+					boot_page_write(PageAddress);
+					boot_spm_busy_wait();
+
+					/* Re-enable RWW section */
+					boot_rww_enable();
+				}
+
+				Endpoint_ClearSetupOUT();
+
+				/* 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();
+			}
+			
+			break;
+	}
+}