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Eve Entropia 2011-02-23 21:47:18 +01:00
parent 4f99742f03
commit a9ad0e80a0
803 changed files with 69785 additions and 33024 deletions
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arduino-0022-linux-x64/hardware/arduino/firmwares/arduino-usbdfu/Arduino-usbdfu.c Normal file
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/*
LUFA Library
Copyright (C) Dean Camera, 2010.
dean [at] fourwalledcubicle [dot] com
www.fourwalledcubicle.com
*/
/*
Copyright 2010 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
without fee, 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 DFU class bootloader. This file contains the complete bootloader logic.
*/
#define INCLUDE_FROM_BOOTLOADER_C
#include "Arduino-usbdfu.h"
/** 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
* jumped to via an indirect jump to location 0x0000 (or other location specified by the host).
*/
bool RunBootloader = true;
/** Flag to indicate if the bootloader is waiting to exit. When the host requests the bootloader to exit and
* jump to the application address it specifies, it sends two sequential commands which must be properly
* acknowledged. Upon reception of the first the RunBootloader flag is cleared and the WaitForExit flag is set,
* causing the bootloader to wait for the final exit command before shutting down.
*/
bool WaitForExit = false;
/** Current DFU state machine state, one of the values in the DFU_State_t enum. */
uint8_t DFU_State = dfuIDLE;
/** Status code of the last executed DFU command. This is set to one of the values in the DFU_Status_t enum after
* each operation, and returned to the host when a Get Status DFU request is issued.
*/
uint8_t DFU_Status = OK;
/** Data containing the DFU command sent from the host. */
DFU_Command_t SentCommand;
/** Response to the last issued Read Data DFU command. Unlike other DFU commands, the read command
* requires a single byte response from the bootloader containing the read data when the next DFU_UPLOAD command
* is issued by the host.
*/
uint8_t ResponseByte;
/** Pointer to the start of the user application. By default this is 0x0000 (the reset vector), however the host
* may specify an alternate address when issuing the application soft-start command.
*/
AppPtr_t AppStartPtr = (AppPtr_t)0x0000;
/** 64-bit flash page number. This is concatenated with the current 16-bit address on USB AVRs containing more than
* 64KB of flash memory.
*/
uint8_t Flash64KBPage = 0;
/** Memory start address, indicating the current address in the memory being addressed (either FLASH or EEPROM
* depending on the issued command from the host).
*/
uint16_t StartAddr = 0x0000;
/** Memory end address, indicating the end address to read to/write from in the memory being addressed (either FLASH
* of EEPROM depending on the issued command from the host).
*/
uint16_t EndAddr = 0x0000;
/** Pulse generation counters to keep track of the number of milliseconds remaining for each pulse type */
volatile struct
{
uint8_t TxLEDPulse; /**< Milliseconds remaining for data Tx LED pulse */
uint8_t RxLEDPulse; /**< Milliseconds remaining for data Rx LED pulse */
uint8_t PingPongLEDPulse; /**< Milliseconds remaining for enumeration Tx/Rx ping-pong LED pulse */
} PulseMSRemaining;
/** 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, or hard-reset via the watchdog to start
* the loaded application code.
*/
int main(void)
{
/* Configure hardware required by the bootloader */
SetupHardware();
/* Enable global interrupts so that the USB stack can function */
sei();
/* Run the USB management task while the bootloader is supposed to be running */
while (RunBootloader || WaitForExit)
USB_USBTask();
/* Reset configured hardware back to their original states for the user application */
ResetHardware();
/* Start the user application */
AppStartPtr();
}
/** 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 */
// clock_prescale_set(clock_div_1);
/* Relocate the interrupt vector table to the bootloader section */
MCUCR = (1 << IVCE);
MCUCR = (1 << IVSEL);
LEDs_Init();
/* Initialize the USB subsystem */
USB_Init();
}
/** Resets all configured hardware required for the bootloader back to their original states. */
void ResetHardware(void)
{
/* Shut down the USB subsystem */
USB_ShutDown();
/* Relocate the interrupt vector table back to the application section */
MCUCR = (1 << IVCE);
MCUCR = 0;
}
/** Event handler for the USB_UnhandledControlRequest event. This is used to catch standard and class specific
* control requests that are not handled internally by the USB library (including the DFU commands, which are
* all issued via the control endpoint), so that they can be handled appropriately for the application.
*/
void EVENT_USB_Device_UnhandledControlRequest(void)
{
/* Get the size of the command and data from the wLength value */
SentCommand.DataSize = USB_ControlRequest.wLength;
/* Turn off TX LED(s) once the TX pulse period has elapsed */
if (PulseMSRemaining.TxLEDPulse && !(--PulseMSRemaining.TxLEDPulse))
LEDs_TurnOffLEDs(LEDMASK_TX);
/* Turn off RX LED(s) once the RX pulse period has elapsed */
if (PulseMSRemaining.RxLEDPulse && !(--PulseMSRemaining.RxLEDPulse))
LEDs_TurnOffLEDs(LEDMASK_RX);
switch (USB_ControlRequest.bRequest)
{
case DFU_DNLOAD:
LEDs_TurnOnLEDs(LEDMASK_RX);
PulseMSRemaining.RxLEDPulse = TX_RX_LED_PULSE_MS;
Endpoint_ClearSETUP();
/* Check if bootloader is waiting to terminate */
if (WaitForExit)
{
/* Bootloader is terminating - process last received command */
ProcessBootloaderCommand();
/* Turn off TX/RX status LEDs so that they're not left on when application starts */
LEDs_TurnOffLEDs(LEDMASK_TX);
LEDs_TurnOffLEDs(LEDMASK_RX);
/* Indicate that the last command has now been processed - free to exit bootloader */
WaitForExit = false;
}
/* If the request has a data stage, load it into the command struct */
if (SentCommand.DataSize)
{
while (!(Endpoint_IsOUTReceived()))
{
if (USB_DeviceState == DEVICE_STATE_Unattached)
return;
}
/* First byte of the data stage is the DNLOAD request's command */
SentCommand.Command = Endpoint_Read_Byte();
/* One byte of the data stage is the command, so subtract it from the total data bytes */
SentCommand.DataSize--;
/* Load in the rest of the data stage as command parameters */
for (uint8_t DataByte = 0; (DataByte < sizeof(SentCommand.Data)) &&
Endpoint_BytesInEndpoint(); DataByte++)
{
SentCommand.Data[DataByte] = Endpoint_Read_Byte();
SentCommand.DataSize--;
}
/* Process the command */
ProcessBootloaderCommand();
}
/* Check if currently downloading firmware */
if (DFU_State == dfuDNLOAD_IDLE)
{
if (!(SentCommand.DataSize))
{
DFU_State = dfuIDLE;
}
else
{
/* Throw away the filler bytes before the start of the firmware */
DiscardFillerBytes(DFU_FILLER_BYTES_SIZE);
/* Throw away the packet alignment filler bytes before the start of the firmware */
DiscardFillerBytes(StartAddr % FIXED_CONTROL_ENDPOINT_SIZE);
/* Calculate the number of bytes remaining to be written */
uint16_t BytesRemaining = ((EndAddr - StartAddr) + 1);
if (IS_ONEBYTE_COMMAND(SentCommand.Data, 0x00)) // Write flash
{
/* Calculate the number of words to be written from the number of bytes to be written */
uint16_t WordsRemaining = (BytesRemaining >> 1);
union
{
uint16_t Words[2];
uint32_t Long;
} CurrFlashAddress = {.Words = {StartAddr, Flash64KBPage}};
uint32_t CurrFlashPageStartAddress = CurrFlashAddress.Long;
uint8_t WordsInFlashPage = 0;
while (WordsRemaining--)
{
/* Check if endpoint is empty - if so clear it and wait until ready for next packet */
if (!(Endpoint_BytesInEndpoint()))
{
Endpoint_ClearOUT();
while (!(Endpoint_IsOUTReceived()))
{
if (USB_DeviceState == DEVICE_STATE_Unattached)
return;
}
}
/* Write the next word into the current flash page */
boot_page_fill(CurrFlashAddress.Long, Endpoint_Read_Word_LE());
/* Adjust counters */
WordsInFlashPage += 1;
CurrFlashAddress.Long += 2;
/* See if an entire page has been written to the flash page buffer */
if ((WordsInFlashPage == (SPM_PAGESIZE >> 1)) || !(WordsRemaining))
{
/* Commit the flash page to memory */
boot_page_write(CurrFlashPageStartAddress);
boot_spm_busy_wait();
/* Check if programming incomplete */
if (WordsRemaining)
{
CurrFlashPageStartAddress = CurrFlashAddress.Long;
WordsInFlashPage = 0;
/* Erase next page's temp buffer */
boot_page_erase(CurrFlashAddress.Long);
boot_spm_busy_wait();
}
}
}
/* Once programming complete, start address equals the end address */
StartAddr = EndAddr;
/* Re-enable the RWW section of flash */
boot_rww_enable();
}
else // Write EEPROM
{
while (BytesRemaining--)
{
/* Check if endpoint is empty - if so clear it and wait until ready for next packet */
if (!(Endpoint_BytesInEndpoint()))
{
Endpoint_ClearOUT();
while (!(Endpoint_IsOUTReceived()))
{
if (USB_DeviceState == DEVICE_STATE_Unattached)
return;
}
}
/* Read the byte from the USB interface and write to to the EEPROM */
eeprom_write_byte((uint8_t*)StartAddr, Endpoint_Read_Byte());
/* Adjust counters */
StartAddr++;
}
}
/* Throw away the currently unused DFU file suffix */
DiscardFillerBytes(DFU_FILE_SUFFIX_SIZE);
}
}
Endpoint_ClearOUT();
Endpoint_ClearStatusStage();
break;
case DFU_UPLOAD:
Endpoint_ClearSETUP();
LEDs_TurnOnLEDs(LEDMASK_TX);
PulseMSRemaining.TxLEDPulse = TX_RX_LED_PULSE_MS;
while (!(Endpoint_IsINReady()))
{
if (USB_DeviceState == DEVICE_STATE_Unattached)
return;
}
if (DFU_State != dfuUPLOAD_IDLE)
{
if ((DFU_State == dfuERROR) && IS_ONEBYTE_COMMAND(SentCommand.Data, 0x01)) // Blank Check
{
/* Blank checking is performed in the DFU_DNLOAD request - if we get here we've told the host
that the memory isn't blank, and the host is requesting the first non-blank address */
Endpoint_Write_Word_LE(StartAddr);
}
else
{
/* Idle state upload - send response to last issued command */
Endpoint_Write_Byte(ResponseByte);
}
}
else
{
/* Determine the number of bytes remaining in the current block */
uint16_t BytesRemaining = ((EndAddr - StartAddr) + 1);
if (IS_ONEBYTE_COMMAND(SentCommand.Data, 0x00)) // Read FLASH
{
/* Calculate the number of words to be written from the number of bytes to be written */
uint16_t WordsRemaining = (BytesRemaining >> 1);
union
{
uint16_t Words[2];
uint32_t Long;
} CurrFlashAddress = {.Words = {StartAddr, Flash64KBPage}};
while (WordsRemaining--)
{
/* Check if endpoint is full - if so clear it and wait until ready for next packet */
if (Endpoint_BytesInEndpoint() == FIXED_CONTROL_ENDPOINT_SIZE)
{
Endpoint_ClearIN();
while (!(Endpoint_IsINReady()))
{
if (USB_DeviceState == DEVICE_STATE_Unattached)
return;
}
}
/* Read the flash word and send it via USB to the host */
#if (FLASHEND > 0xFFFF)
Endpoint_Write_Word_LE(pgm_read_word_far(CurrFlashAddress.Long));
#else
Endpoint_Write_Word_LE(pgm_read_word(CurrFlashAddress.Long));
#endif
/* Adjust counters */
CurrFlashAddress.Long += 2;
}
/* Once reading is complete, start address equals the end address */
StartAddr = EndAddr;
}
else if (IS_ONEBYTE_COMMAND(SentCommand.Data, 0x02)) // Read EEPROM
{
while (BytesRemaining--)
{
/* Check if endpoint is full - if so clear it and wait until ready for next packet */
if (Endpoint_BytesInEndpoint() == FIXED_CONTROL_ENDPOINT_SIZE)
{
Endpoint_ClearIN();
while (!(Endpoint_IsINReady()))
{
if (USB_DeviceState == DEVICE_STATE_Unattached)
return;
}
}
/* Read the EEPROM byte and send it via USB to the host */
Endpoint_Write_Byte(eeprom_read_byte((uint8_t*)StartAddr));
/* Adjust counters */
StartAddr++;
}
}
/* Return to idle state */
DFU_State = dfuIDLE;
}
Endpoint_ClearIN();
Endpoint_ClearStatusStage();
break;
case DFU_GETSTATUS:
Endpoint_ClearSETUP();
/* Write 8-bit status value */
Endpoint_Write_Byte(DFU_Status);
/* Write 24-bit poll timeout value */
Endpoint_Write_Byte(0);
Endpoint_Write_Word_LE(0);
/* Write 8-bit state value */
Endpoint_Write_Byte(DFU_State);
/* Write 8-bit state string ID number */
Endpoint_Write_Byte(0);
Endpoint_ClearIN();
Endpoint_ClearStatusStage();
break;
case DFU_CLRSTATUS:
Endpoint_ClearSETUP();
/* Reset the status value variable to the default OK status */
DFU_Status = OK;
Endpoint_ClearStatusStage();
break;
case DFU_GETSTATE:
Endpoint_ClearSETUP();
/* Write the current device state to the endpoint */
Endpoint_Write_Byte(DFU_State);
Endpoint_ClearIN();
Endpoint_ClearStatusStage();
break;
case DFU_ABORT:
Endpoint_ClearSETUP();
/* Turn off TX/RX status LEDs so that they're not left on when application starts */
LEDs_TurnOffLEDs(LEDMASK_TX);
LEDs_TurnOffLEDs(LEDMASK_RX);
/* Reset the current state variable to the default idle state */
DFU_State = dfuIDLE;
Endpoint_ClearStatusStage();
break;
}
}
/** Routine to discard the specified number of bytes from the control endpoint stream. This is used to
* discard unused bytes in the stream from the host, including the memory program block suffix.
*
* \param[in] NumberOfBytes Number of bytes to discard from the host from the control endpoint
*/
static void DiscardFillerBytes(uint8_t NumberOfBytes)
{
while (NumberOfBytes--)
{
if (!(Endpoint_BytesInEndpoint()))
{
Endpoint_ClearOUT();
/* Wait until next data packet received */
while (!(Endpoint_IsOUTReceived()))
{
if (USB_DeviceState == DEVICE_STATE_Unattached)
return;
}
}
else
{
Endpoint_Discard_Byte();
}
}
}
/** Routine to process an issued command from the host, via a DFU_DNLOAD request wrapper. This routine ensures
* that the command is allowed based on the current secure mode flag value, and passes the command off to the
* appropriate handler function.
*/
static void ProcessBootloaderCommand(void)
{
/* Check if device is in secure mode */
// if (IsSecure)
// {
// /* Don't process command unless it is a READ or chip erase command */
// if (!(((SentCommand.Command == COMMAND_WRITE) &&
// IS_TWOBYTE_COMMAND(SentCommand.Data, 0x00, 0xFF)) ||
// (SentCommand.Command == COMMAND_READ)))
// {
// /* Set the state and status variables to indicate the error */
// DFU_State = dfuERROR;
// DFU_Status = errWRITE;
//
// /* Stall command */
// Endpoint_StallTransaction();
//
// /* Don't process the command */
// return;
// }
// }
/* Dispatch the required command processing routine based on the command type */
switch (SentCommand.Command)
{
case COMMAND_PROG_START:
ProcessMemProgCommand();
break;
case COMMAND_DISP_DATA:
ProcessMemReadCommand();
break;
case COMMAND_WRITE:
ProcessWriteCommand();
break;
case COMMAND_READ:
ProcessReadCommand();
break;
case COMMAND_CHANGE_BASE_ADDR:
if (IS_TWOBYTE_COMMAND(SentCommand.Data, 0x03, 0x00)) // Set 64KB flash page command
Flash64KBPage = SentCommand.Data[2];
break;
}
}
/** Routine to concatenate the given pair of 16-bit memory start and end addresses from the host, and store them
* in the StartAddr and EndAddr global variables.
*/
static void LoadStartEndAddresses(void)
{
union
{
uint8_t Bytes[2];
uint16_t Word;
} Address[2] = {{.Bytes = {SentCommand.Data[2], SentCommand.Data[1]}},
{.Bytes = {SentCommand.Data[4], SentCommand.Data[3]}}};
/* Load in the start and ending read addresses from the sent data packet */
StartAddr = Address[0].Word;
EndAddr = Address[1].Word;
}
/** Handler for a Memory Program command issued by the host. This routine handles the preparations needed
* to write subsequent data from the host into the specified memory.
*/
static void ProcessMemProgCommand(void)
{
if (IS_ONEBYTE_COMMAND(SentCommand.Data, 0x00) || // Write FLASH command
IS_ONEBYTE_COMMAND(SentCommand.Data, 0x01)) // Write EEPROM command
{
/* Load in the start and ending read addresses */
LoadStartEndAddresses();
/* If FLASH is being written to, we need to pre-erase the first page to write to */
if (IS_ONEBYTE_COMMAND(SentCommand.Data, 0x00))
{
union
{
uint16_t Words[2];
uint32_t Long;
} CurrFlashAddress = {.Words = {StartAddr, Flash64KBPage}};
/* Erase the current page's temp buffer */
boot_page_erase(CurrFlashAddress.Long);
boot_spm_busy_wait();
}
/* Set the state so that the next DNLOAD requests reads in the firmware */
DFU_State = dfuDNLOAD_IDLE;
}
}
/** Handler for a Memory Read command issued by the host. This routine handles the preparations needed
* to read subsequent data from the specified memory out to the host, as well as implementing the memory
* blank check command.
*/
static void ProcessMemReadCommand(void)
{
if (IS_ONEBYTE_COMMAND(SentCommand.Data, 0x00) || // Read FLASH command
IS_ONEBYTE_COMMAND(SentCommand.Data, 0x02)) // Read EEPROM command
{
/* Load in the start and ending read addresses */
LoadStartEndAddresses();
/* Set the state so that the next UPLOAD requests read out the firmware */
DFU_State = dfuUPLOAD_IDLE;
}
else if (IS_ONEBYTE_COMMAND(SentCommand.Data, 0x01)) // Blank check FLASH command
{
uint32_t CurrFlashAddress = 0;
while (CurrFlashAddress < BOOT_START_ADDR)
{
/* Check if the current byte is not blank */
#if (FLASHEND > 0xFFFF)
if (pgm_read_byte_far(CurrFlashAddress) != 0xFF)
#else
if (pgm_read_byte(CurrFlashAddress) != 0xFF)
#endif
{
/* Save the location of the first non-blank byte for response back to the host */
Flash64KBPage = (CurrFlashAddress >> 16);
StartAddr = CurrFlashAddress;
/* Set state and status variables to the appropriate error values */
DFU_State = dfuERROR;
DFU_Status = errCHECK_ERASED;
break;
}
CurrFlashAddress++;
}
}
}
/** Handler for a Data Write command issued by the host. This routine handles non-programming commands such as
* bootloader exit (both via software jumps and hardware watchdog resets) and flash memory erasure.
*/
static void ProcessWriteCommand(void)
{
if (IS_ONEBYTE_COMMAND(SentCommand.Data, 0x03)) // Start application
{
/* Indicate that the bootloader is terminating */
WaitForExit = true;
/* Check if data supplied for the Start Program command - no data executes the program */
if (SentCommand.DataSize)
{
if (SentCommand.Data[1] == 0x01) // Start via jump
{
union
{
uint8_t Bytes[2];
AppPtr_t FuncPtr;
} Address = {.Bytes = {SentCommand.Data[4], SentCommand.Data[3]}};
/* Load in the jump address into the application start address pointer */
AppStartPtr = Address.FuncPtr;
}
}
else
{
if (SentCommand.Data[1] == 0x00) // Start via watchdog
{
/* Start the watchdog to reset the AVR once the communications are finalized */
wdt_enable(WDTO_250MS);
}
else // Start via jump
{
/* Set the flag to terminate the bootloader at next opportunity */
RunBootloader = false;
}
}
}
else if (IS_TWOBYTE_COMMAND(SentCommand.Data, 0x00, 0xFF)) // Erase flash
{
uint32_t CurrFlashAddress = 0;
/* Clear the application section of flash */
while (CurrFlashAddress < BOOT_START_ADDR)
{
boot_page_erase(CurrFlashAddress);
boot_spm_busy_wait();
boot_page_write(CurrFlashAddress);
boot_spm_busy_wait();
CurrFlashAddress += SPM_PAGESIZE;
}
/* Re-enable the RWW section of flash as writing to the flash locks it out */
boot_rww_enable();
/* Memory has been erased, reset the security bit so that programming/reading is allowed */
// IsSecure = false;
}
}
/** Handler for a Data Read command issued by the host. This routine handles bootloader information retrieval
* commands such as device signature and bootloader version retrieval.
*/
static void ProcessReadCommand(void)
{
const uint8_t BootloaderInfo[3] = {BOOTLOADER_VERSION, BOOTLOADER_ID_BYTE1, BOOTLOADER_ID_BYTE2};
const uint8_t SignatureInfo[3] = {AVR_SIGNATURE_1, AVR_SIGNATURE_2, AVR_SIGNATURE_3};
uint8_t DataIndexToRead = SentCommand.Data[1];
if (IS_ONEBYTE_COMMAND(SentCommand.Data, 0x00)) // Read bootloader info
ResponseByte = BootloaderInfo[DataIndexToRead];
else if (IS_ONEBYTE_COMMAND(SentCommand.Data, 0x01)) // Read signature byte
ResponseByte = SignatureInfo[DataIndexToRead - 0x30];
}

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arduino-0022-linux-x64/hardware/arduino/firmwares/arduino-usbdfu/Arduino-usbdfu.h Normal file
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/*
LUFA Library
Copyright (C) Dean Camera, 2010.
dean [at] fourwalledcubicle [dot] com
www.fourwalledcubicle.com
*/
/*
Copyright 2010 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
without fee, 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
*
* Header file for Arduino-usbdfu.c.
*/
#ifndef _ARDUINO_USB_DFU_BOOTLOADER_H_
#define _ARDUINO_USB_DFU_BOOTLOADER_H_
/* Includes: */
#include <avr/io.h>
#include <avr/wdt.h>
#include <avr/boot.h>
#include <avr/pgmspace.h>
#include <avr/eeprom.h>
#include <avr/power.h>
#include <avr/interrupt.h>
#include <stdbool.h>
#include "Descriptors.h"
#include <LUFA/Drivers/Board/LEDs.h>
#include <LUFA/Drivers/USB/USB.h>
/* Macros: */
/** LED mask for the library LED driver, to indicate TX activity. */
#define LEDMASK_TX LEDS_LED1
/** LED mask for the library LED driver, to indicate RX activity. */
#define LEDMASK_RX LEDS_LED2
/** LED mask for the library LED driver, to indicate that an error has occurred in the USB interface. */
#define LEDMASK_ERROR (LEDS_LED1 | LEDS_LED2)
/** LED mask for the library LED driver, to indicate that the USB interface is busy. */
#define LEDMASK_BUSY (LEDS_LED1 | LEDS_LED2)
/** Configuration define. Define this token to true to case the bootloader to reject all memory commands
* until a memory erase has been performed. When used in conjunction with the lockbits of the AVR, this
* can protect the AVR's firmware from being dumped from a secured AVR. When false, memory operations are
* allowed at any time.
*/
// #define SECURE_MODE false
/** Major bootloader version number. */
#define BOOTLOADER_VERSION_MINOR 2
/** Minor bootloader version number. */
#define BOOTLOADER_VERSION_REV 0
/** Complete bootloader version number expressed as a packed byte, constructed from the
* two individual bootloader version macros.
*/
#define BOOTLOADER_VERSION ((BOOTLOADER_VERSION_MINOR << 4) | BOOTLOADER_VERSION_REV)
/** First byte of the bootloader identification bytes, used to identify a device's bootloader. */
#define BOOTLOADER_ID_BYTE1 0xDC
/** Second byte of the bootloader identification bytes, used to identify a device's bootloader. */
#define BOOTLOADER_ID_BYTE2 0xFB
/** Convenience macro, used to determine if the issued command is the given one-byte long command.
*
* \param[in] dataarr Command byte array to check against
* \param[in] cb1 First command byte to check
*/
#define IS_ONEBYTE_COMMAND(dataarr, cb1) (dataarr[0] == (cb1))
/** Convenience macro, used to determine if the issued command is the given two-byte long command.
*
* \param[in] dataarr Command byte array to check against
* \param[in] cb1 First command byte to check
* \param[in] cb2 Second command byte to check
*/
#define IS_TWOBYTE_COMMAND(dataarr, cb1, cb2) ((dataarr[0] == (cb1)) && (dataarr[1] == (cb2)))
/** Length of the DFU file suffix block, appended to the end of each complete memory write command.
* The DFU file suffix is currently unused (but is designed to give extra file information, such as
* a CRC of the complete firmware for error checking) and so is discarded.
*/
#define DFU_FILE_SUFFIX_SIZE 16
/** Length of the DFU file filler block, appended to the start of each complete memory write command.
* Filler bytes are added to the start of each complete memory write command, and must be discarded.
*/
#define DFU_FILLER_BYTES_SIZE 26
/** DFU class command request to detach from the host. */
#define DFU_DETATCH 0x00
/** DFU class command request to send data from the host to the bootloader. */
#define DFU_DNLOAD 0x01
/** DFU class command request to send data from the bootloader to the host. */
#define DFU_UPLOAD 0x02
/** DFU class command request to get the current DFU status and state from the bootloader. */
#define DFU_GETSTATUS 0x03
/** DFU class command request to reset the current DFU status and state variables to their defaults. */
#define DFU_CLRSTATUS 0x04
/** DFU class command request to get the current DFU state of the bootloader. */
#define DFU_GETSTATE 0x05
/** DFU class command request to abort the current multi-request transfer and return to the dfuIDLE state. */
#define DFU_ABORT 0x06
/** DFU command to begin programming the device's memory. */
#define COMMAND_PROG_START 0x01
/** DFU command to begin reading the device's memory. */
#define COMMAND_DISP_DATA 0x03
/** DFU command to issue a write command. */
#define COMMAND_WRITE 0x04
/** DFU command to issue a read command. */
#define COMMAND_READ 0x05
/** DFU command to issue a memory base address change command, to set the current 64KB flash page
* that subsequent flash operations should use. */
#define COMMAND_CHANGE_BASE_ADDR 0x06
/* Type Defines: */
/** Type define for a non-returning function pointer to the loaded application. */
typedef void (*AppPtr_t)(void) ATTR_NO_RETURN;
/** Type define for a structure containing a complete DFU command issued by the host. */
typedef struct
{
uint8_t Command; /**< Single byte command to perform, one of the COMMAND_* macro values */
uint8_t Data[5]; /**< Command parameters */
uint16_t DataSize; /**< Size of the command parameters */
} DFU_Command_t;
/* Enums: */
/** DFU bootloader states. Refer to the DFU class specification for information on each state. */
enum DFU_State_t
{
appIDLE = 0,
appDETACH = 1,
dfuIDLE = 2,
dfuDNLOAD_SYNC = 3,
dfuDNBUSY = 4,
dfuDNLOAD_IDLE = 5,
dfuMANIFEST_SYNC = 6,
dfuMANIFEST = 7,
dfuMANIFEST_WAIT_RESET = 8,
dfuUPLOAD_IDLE = 9,
dfuERROR = 10
};
/** DFU command status error codes. Refer to the DFU class specification for information on each error code. */
enum DFU_Status_t
{
OK = 0,
errTARGET = 1,
errFILE = 2,
errWRITE = 3,
errERASE = 4,
errCHECK_ERASED = 5,
errPROG = 6,
errVERIFY = 7,
errADDRESS = 8,
errNOTDONE = 9,
errFIRMWARE = 10,
errVENDOR = 11,
errUSBR = 12,
errPOR = 13,
errUNKNOWN = 14,
errSTALLEDPKT = 15
};
/* Function Prototypes: */
void SetupHardware(void);
void ResetHardware(void);
void EVENT_USB_Device_UnhandledControlRequest(void);
#if defined(INCLUDE_FROM_BOOTLOADER_C)
static void DiscardFillerBytes(uint8_t NumberOfBytes);
static void ProcessBootloaderCommand(void);
static void LoadStartEndAddresses(void);
static void ProcessMemProgCommand(void);
static void ProcessMemReadCommand(void);
static void ProcessWriteCommand(void);
static void ProcessReadCommand(void);
#endif
#endif /* _ARDUINO_USB_DFU_BOOTLOADER_H_ */

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/*
LUFA Library
Copyright (C) Dean Camera, 2010.
dean [at] fourwalledcubicle [dot] com
www.fourwalledcubicle.com
*/
/*
Copyright 2010 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
without fee, 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.
*/
/*
Board LEDs driver for the Benito board, from www.dorkbotpdx.org.
*/
#ifndef __LEDS_ARDUINOUNO_H__
#define __LEDS_ARDUINOUNO_H__
/* Includes: */
#include <avr/io.h>
/* Enable C linkage for C++ Compilers: */
#if defined(__cplusplus)
extern "C" {
#endif
/* Preprocessor Checks: */
#if !defined(INCLUDE_FROM_LEDS_H)
#error Do not include this file directly. Include LUFA/Drivers/Board/LEDS.h instead.
#endif
/* Public Interface - May be used in end-application: */
/* Macros: */
/** LED mask for the first LED on the board. */
#define LEDS_LED1 (1 << 5)
/** LED mask for the second LED on the board. */
#define LEDS_LED2 (1 << 4)
/** LED mask for all the LEDs on the board. */
#define LEDS_ALL_LEDS (LEDS_LED1 | LEDS_LED2)
/** LED mask for the none of the board LEDs */
#define LEDS_NO_LEDS 0
/* Inline Functions: */
#if !defined(__DOXYGEN__)
static inline void LEDs_Init(void)
{
DDRD |= LEDS_ALL_LEDS;
PORTD |= LEDS_ALL_LEDS;
}
static inline void LEDs_TurnOnLEDs(const uint8_t LEDMask)
{
PORTD &= ~LEDMask;
}
static inline void LEDs_TurnOffLEDs(const uint8_t LEDMask)
{
PORTD |= LEDMask;
}
static inline void LEDs_SetAllLEDs(const uint8_t LEDMask)
{
PORTD = ((PORTD | LEDS_ALL_LEDS) & ~LEDMask);
}
static inline void LEDs_ChangeLEDs(const uint8_t LEDMask, const uint8_t ActiveMask)
{
PORTD = ((PORTD | ActiveMask) & ~LEDMask);
}
static inline void LEDs_ToggleLEDs(const uint8_t LEDMask)
{
PORTD ^= LEDMask;
}
static inline uint8_t LEDs_GetLEDs(void) ATTR_WARN_UNUSED_RESULT;
static inline uint8_t LEDs_GetLEDs(void)
{
return (PORTD & LEDS_ALL_LEDS);
}
#endif
/* Disable C linkage for C++ Compilers: */
#if defined(__cplusplus)
}
#endif
#endif

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/*
LUFA Library
Copyright (C) Dean Camera, 2010.
dean [at] fourwalledcubicle [dot] com
www.fourwalledcubicle.com
*/
/*
Copyright 2010 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
without fee, 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
*
* USB Device Descriptors, for library use when in USB device mode. Descriptors are special
* computer-readable structures which the host requests upon device enumeration, to determine
* the device's capabilities and functions.
*/
#include "Descriptors.h"
/** Device descriptor structure. This descriptor, located in FLASH memory, describes the overall
* device characteristics, including the supported USB version, control endpoint size and the
* number of device configurations. The descriptor is read out by the USB host when the enumeration
* process begins.
*/
USB_Descriptor_Device_t DeviceDescriptor =
{
.Header = {.Size = sizeof(USB_Descriptor_Device_t), .Type = DTYPE_Device},
.USBSpecification = VERSION_BCD(01.10),
.Class = 0x00,
.SubClass = 0x00,
.Protocol = 0x00,
.Endpoint0Size = FIXED_CONTROL_ENDPOINT_SIZE,
.VendorID = 0x03EB, // Atmel
.ProductID = PRODUCT_ID_CODE, // MCU-dependent
.ReleaseNumber = 0x0000,
.ManufacturerStrIndex = NO_DESCRIPTOR,
.ProductStrIndex = 0x01,
.SerialNumStrIndex = NO_DESCRIPTOR,
.NumberOfConfigurations = FIXED_NUM_CONFIGURATIONS
};
/** Configuration descriptor structure. This descriptor, located in FLASH memory, describes the usage
* of the device in one of its supported configurations, including information about any device interfaces
* and endpoints. The descriptor is read out by the USB host during the enumeration process when selecting
* a configuration so that the host may correctly communicate with the USB device.
*/
USB_Descriptor_Configuration_t ConfigurationDescriptor =
{
.Config =
{
.Header = {.Size = sizeof(USB_Descriptor_Configuration_Header_t), .Type = DTYPE_Configuration},
.TotalConfigurationSize = sizeof(USB_Descriptor_Configuration_t),
.TotalInterfaces = 1,
.ConfigurationNumber = 1,
.ConfigurationStrIndex = NO_DESCRIPTOR,
.ConfigAttributes = USB_CONFIG_ATTR_BUSPOWERED,
.MaxPowerConsumption = USB_CONFIG_POWER_MA(100)
},
.DFU_Interface =
{
.Header = {.Size = sizeof(USB_Descriptor_Interface_t), .Type = DTYPE_Interface},
.InterfaceNumber = 0,
.AlternateSetting = 0,
.TotalEndpoints = 0,
.Class = 0xFE,
.SubClass = 0x01,
.Protocol = 0x02,
.InterfaceStrIndex = NO_DESCRIPTOR
},
.DFU_Functional =
{
.Header = {.Size = sizeof(USB_DFU_Functional_Descriptor_t), .Type = DTYPE_DFUFunctional},
.Attributes = (ATTR_CAN_UPLOAD | ATTR_CAN_DOWNLOAD),
.DetachTimeout = 0x0000,
.TransferSize = 0x0c00,
.DFUSpecification = VERSION_BCD(01.01)
}
};
/** Language descriptor structure. This descriptor, located in FLASH memory, is returned when the host requests
* the string descriptor with index 0 (the first index). It is actually an array of 16-bit integers, which indicate
* via the language ID table available at USB.org what languages the device supports for its string descriptors.
*/
USB_Descriptor_String_t LanguageString =
{
.Header = {.Size = USB_STRING_LEN(1), .Type = DTYPE_String},
.UnicodeString = {LANGUAGE_ID_ENG}
};
/** Product descriptor string. This is a Unicode string containing the product's details in human readable form,
* and is read out upon request by the host when the appropriate string ID is requested, listed in the Device
* Descriptor.
*/
USB_Descriptor_String_t ProductString =
{
#if (ARDUINO_MODEL_PID == ARDUINO_UNO_PID)
.Header = {.Size = USB_STRING_LEN(15), .Type = DTYPE_String},
.UnicodeString = L"Arduino Uno DFU"
#elif (ARDUINO_MODEL_PID == ARDUINO_MEGA2560_PID)
.Header = {.Size = USB_STRING_LEN(21), .Type = DTYPE_String},
.UnicodeString = L"Arduino Mega 2560 DFU"
#endif
};
/** This function is called by the library when in device mode, and must be overridden (see library "USB Descriptors"
* documentation) by the application code so that the address and size of a requested descriptor can be given
* to the USB library. When the device receives a Get Descriptor request on the control endpoint, this function
* is called so that the descriptor details can be passed back and the appropriate descriptor sent back to the
* USB host.
*/
uint16_t CALLBACK_USB_GetDescriptor(const uint16_t wValue,
const uint8_t wIndex,
void** const DescriptorAddress)
{
const uint8_t DescriptorType = (wValue >> 8);
const uint8_t DescriptorNumber = (wValue & 0xFF);
void* Address = NULL;
uint16_t Size = NO_DESCRIPTOR;
switch (DescriptorType)
{
case DTYPE_Device:
Address = &DeviceDescriptor;
Size = sizeof(USB_Descriptor_Device_t);
break;
case DTYPE_Configuration:
Address = &ConfigurationDescriptor;
Size = sizeof(USB_Descriptor_Configuration_t);
break;
case DTYPE_String:
if (!(DescriptorNumber))
{
Address = &LanguageString;
Size = LanguageString.Header.Size;
}
else
{
Address = &ProductString;
Size = ProductString.Header.Size;
}
break;
}
*DescriptorAddress = Address;
return Size;
}

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/*
LUFA Library
Copyright (C) Dean Camera, 2010.
dean [at] fourwalledcubicle [dot] com
www.fourwalledcubicle.com
*/
/*
Copyright 2010 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
without fee, 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
*
* Header file for Descriptors.c.
*/
#ifndef _DESCRIPTORS_H_
#define _DESCRIPTORS_H_
/* Includes: */
#include <LUFA/Drivers/USB/USB.h>
/* Product-specific definitions: */
#define ARDUINO_UNO_PID 0x0001
#define ARDUINO_MEGA2560_PID 0x0010
/* Macros: */
/** Descriptor type value for a DFU class functional descriptor. */
#define DTYPE_DFUFunctional 0x21
/** DFU attribute mask, indicating that the DFU device will detach and re-attach when a DFU_DETACH
* command is issued, rather than the host issuing a USB Reset.
*/
#define ATTR_WILL_DETATCH (1 << 3)
/** DFU attribute mask, indicating that the DFU device can communicate during the manifestation phase
* (memory programming phase).
*/
#define ATTR_MANEFESTATION_TOLLERANT (1 << 2)
/** DFU attribute mask, indicating that the DFU device can accept DFU_UPLOAD requests to send data from
* the device to the host.
*/
#define ATTR_CAN_UPLOAD (1 << 1)
/** DFU attribute mask, indicating that the DFU device can accept DFU_DNLOAD requests to send data from
* the host to the device.
*/
#define ATTR_CAN_DOWNLOAD (1 << 0)
#if defined(__AVR_AT90USB1287__)
#define PRODUCT_ID_CODE 0x2FFB
#define AVR_SIGNATURE_1 0x1E
#define AVR_SIGNATURE_2 0x97
#define AVR_SIGNATURE_3 0x82
#elif defined(__AVR_AT90USB1286__)
#define PRODUCT_ID_CODE 0x2FFB
#define AVR_SIGNATURE_1 0x1E
#define AVR_SIGNATURE_2 0x97
#define AVR_SIGNATURE_3 0x82
#elif defined(__AVR_AT90USB647__)
#define PRODUCT_ID_CODE 0x2FF9
#define AVR_SIGNATURE_1 0x1E
#define AVR_SIGNATURE_2 0x96
#define AVR_SIGNATURE_3 0x82
#elif defined(__AVR_AT90USB646__)
#define PRODUCT_ID_CODE 0x2FF9
#define AVR_SIGNATURE_1 0x1E
#define AVR_SIGNATURE_2 0x96
#define AVR_SIGNATURE_3 0x82
#elif defined(__AVR_ATmega32U6__)
#define PRODUCT_ID_CODE 0x2FFB
#define AVR_SIGNATURE_1 0x1E
#define AVR_SIGNATURE_2 0x95
#define AVR_SIGNATURE_3 0x88
#elif defined(__AVR_ATmega32U4__)
#define PRODUCT_ID_CODE 0x2FF4
#define AVR_SIGNATURE_1 0x1E
#define AVR_SIGNATURE_2 0x95
#define AVR_SIGNATURE_3 0x87
#elif defined(__AVR_ATmega32U2__)
#define PRODUCT_ID_CODE 0x2FF0
#define AVR_SIGNATURE_1 0x1E
#define AVR_SIGNATURE_2 0x95
#define AVR_SIGNATURE_3 0x8A
#elif defined(__AVR_ATmega16U4__)
#define PRODUCT_ID_CODE 0x2FF3
#define AVR_SIGNATURE_1 0x1E
#define AVR_SIGNATURE_2 0x94
#define AVR_SIGNATURE_3 0x88
#elif defined(__AVR_ATmega16U2__)
#define PRODUCT_ID_CODE 0x2FEF
#define AVR_SIGNATURE_1 0x1E
#define AVR_SIGNATURE_2 0x94
#define AVR_SIGNATURE_3 0x89
#elif defined(__AVR_AT90USB162__)
#define PRODUCT_ID_CODE 0x2FFA
#define AVR_SIGNATURE_1 0x1E
#define AVR_SIGNATURE_2 0x94
#define AVR_SIGNATURE_3 0x82
#elif defined(__AVR_AT90USB82__)
#define PRODUCT_ID_CODE 0x2FEE
#define AVR_SIGNATURE_1 0x1E
#define AVR_SIGNATURE_2 0x93
#define AVR_SIGNATURE_3 0x89
#elif defined(__AVR_ATmega8U2__)
#define PRODUCT_ID_CODE 0x2FF7
#define AVR_SIGNATURE_1 0x1E
#define AVR_SIGNATURE_2 0x93
#define AVR_SIGNATURE_3 0x82
#else
#error The selected AVR part is not currently supported by this bootloader.
#endif
#if !defined(PRODUCT_ID_CODE)
#error Current AVR model is not supported by this bootloader.
#endif
/* Type Defines: */
/** Type define for a DFU class function descriptor. This descriptor gives DFU class information
* to the host when read, indicating the DFU device's capabilities.
*/
typedef struct
{
USB_Descriptor_Header_t Header; /**< Standard descriptor header structure */
uint8_t Attributes; /**< DFU device attributes, a mask comprising of the
* ATTR_* macros listed in this source file
*/
uint16_t DetachTimeout; /**< Timeout in milliseconds between a USB_DETACH
* command being issued and the device detaching
* from the USB bus
*/
uint16_t TransferSize; /**< Maximum number of bytes the DFU device can accept
* from the host in a transaction
*/
uint16_t DFUSpecification; /**< BCD packed DFU specification number this DFU
* device complies with
*/
} USB_DFU_Functional_Descriptor_t;
/** Type define for the device configuration descriptor structure. This must be defined in the
* application code, as the configuration descriptor contains several sub-descriptors which
* vary between devices, and which describe the device's usage to the host.
*/
typedef struct
{
USB_Descriptor_Configuration_Header_t Config;
USB_Descriptor_Interface_t DFU_Interface;
USB_DFU_Functional_Descriptor_t DFU_Functional;
} USB_Descriptor_Configuration_t;
/* Function Prototypes: */
uint16_t CALLBACK_USB_GetDescriptor(const uint16_t wValue,
const uint8_t wIndex,
void** const DescriptorAddress) ATTR_WARN_UNUSED_RESULT ATTR_NON_NULL_PTR_ARG(3);
#endif

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# Hey Emacs, this is a -*- makefile -*-
#----------------------------------------------------------------------------
# WinAVR Makefile Template written by Eric B. Weddington, Jörg Wunsch, et al.
# >> Modified for use with the LUFA project. <<
#
# Released to the Public Domain
#
# Additional material for this makefile was written by:
# Peter Fleury
# Tim Henigan
# Colin O'Flynn
# Reiner Patommel
# Markus Pfaff
# Sander Pool
# Frederik Rouleau
# Carlos Lamas
# Dean Camera
# Opendous Inc.
# Denver Gingerich
#
#----------------------------------------------------------------------------
# On command line:
#
# make all = Make software.
#
# make clean = Clean out built project files.
#
# make coff = Convert ELF to AVR COFF.
#
# make extcoff = Convert ELF to AVR Extended COFF.
#
# make program = Download the hex file to the device, using avrdude.
# Please customize the avrdude settings below first!
#
# make doxygen = Generate DoxyGen documentation for the project (must have
# DoxyGen installed)
#
# make debug = Start either simulavr or avarice as specified for debugging,
# with avr-gdb or avr-insight as the front end for debugging.
#
# make filename.s = Just compile filename.c into the assembler code only.
#
# make filename.i = Create a preprocessed source file for use in submitting
# bug reports to the GCC project.
#
# To rebuild project do "make clean" then "make all".
#----------------------------------------------------------------------------
# MCU name
MCU = atmega8u2
MCU_AVRDUDE = at90usb82
# Specify the Arduino model using the assigned PID. This is used by Descriptors.c
# to set the product descriptor string (for DFU we must use the PID for each
# chip that dfu-bootloader or Flip expect)
# Uno PID:
ARDUINO_MODEL_PID = 0x0001
# Mega 2560 PID:
#ARDUINO_MODEL_PID = 0x0010
# Target board (see library "Board Types" documentation, NONE for projects not requiring
# LUFA board drivers). If USER is selected, put custom board drivers in a directory called
# "Board" inside the application directory.
BOARD = USER
# Processor frequency.
# This will define a symbol, F_CPU, in all source code files equal to the
# processor frequency in Hz. You can then use this symbol in your source code to
# calculate timings. Do NOT tack on a 'UL' at the end, this will be done
# automatically to create a 32-bit value in your source code.
#
# This will be an integer division of F_CLOCK below, as it is sourced by
# F_CLOCK after it has run through any CPU prescalers. Note that this value
# does not *change* the processor frequency - it should merely be updated to
# reflect the processor speed set externally so that the code can use accurate
# software delays.
F_CPU = 16000000
# Input clock frequency.
# This will define a symbol, F_CLOCK, in all source code files equal to the
# input clock frequency (before any prescaling is performed) in Hz. This value may
# differ from F_CPU if prescaling is used on the latter, and is required as the
# raw input clock is fed directly to the PLL sections of the AVR for high speed
# clock generation for the USB and other AVR subsections. Do NOT tack on a 'UL'
# at the end, this will be done automatically to create a 32-bit value in your
# source code.
#
# If no clock division is performed on the input clock inside the AVR (via the
# CPU clock adjust registers or the clock division fuses), this will be equal to F_CPU.
F_CLOCK = $(F_CPU)
# Starting byte address of the bootloader, as a byte address - computed via the formula
# BOOT_START = ((TOTAL_FLASH_BYTES - BOOTLOADER_SECTION_SIZE_BYTES) * 1024)
#
# Note that the bootloader size and start address given in AVRStudio is in words and not
# bytes, and so will need to be doubled to obtain the byte address needed by AVR-GCC.
BOOT_START = 0x1000
# Output format. (can be srec, ihex, binary)
FORMAT = ihex
# Target file name (without extension).
TARGET = Arduino-usbdfu
# Object files directory
# To put object files in current directory, use a dot (.), do NOT make
# this an empty or blank macro!
OBJDIR = .
# Path to the LUFA library
LUFA_PATH = ../..
# LUFA library compile-time options and predefined tokens
LUFA_OPTS = -D USB_DEVICE_ONLY
LUFA_OPTS += -D DEVICE_STATE_AS_GPIOR=0
LUFA_OPTS += -D CONTROL_ONLY_DEVICE
LUFA_OPTS += -D FIXED_CONTROL_ENDPOINT_SIZE=32
LUFA_OPTS += -D FIXED_NUM_CONFIGURATIONS=1
LUFA_OPTS += -D USE_RAM_DESCRIPTORS
LUFA_OPTS += -D USE_STATIC_OPTIONS="(USB_DEVICE_OPT_FULLSPEED | USB_OPT_REG_ENABLED | USB_OPT_AUTO_PLL)"
LUFA_OPTS += -D NO_INTERNAL_SERIAL
LUFA_OPTS += -D NO_DEVICE_SELF_POWER
LUFA_OPTS += -D NO_DEVICE_REMOTE_WAKEUP
LUFA_OPTS += -D NO_STREAM_CALLBACKS
# Create the LUFA source path variables by including the LUFA root makefile
include $(LUFA_PATH)/LUFA/makefile
# List C source files here. (C dependencies are automatically generated.)
SRC = $(TARGET).c \
Descriptors.c \
$(LUFA_SRC_USB) \
# List C++ source files here. (C dependencies are automatically generated.)
CPPSRC =
# List Assembler source files here.
# Make them always end in a capital .S. Files ending in a lowercase .s
# will not be considered source files but generated files (assembler
# output from the compiler), and will be deleted upon "make clean"!
# Even though the DOS/Win* filesystem matches both .s and .S the same,
# it will preserve the spelling of the filenames, and gcc itself does
# care about how the name is spelled on its command-line.
ASRC =
# Optimization level, can be [0, 1, 2, 3, s].
# 0 = turn off optimization. s = optimize for size.
# (Note: 3 is not always the best optimization level. See avr-libc FAQ.)
OPT = s
# Debugging format.
# Native formats for AVR-GCC's -g are dwarf-2 [default] or stabs.
# AVR Studio 4.10 requires dwarf-2.
# AVR [Extended] COFF format requires stabs, plus an avr-objcopy run.
DEBUG = dwarf-2
# List any extra directories to look for include files here.
# Each directory must be seperated by a space.
# Use forward slashes for directory separators.
# For a directory that has spaces, enclose it in quotes.
EXTRAINCDIRS = $(LUFA_PATH)/
# Compiler flag to set the C Standard level.
# c89 = "ANSI" C
# gnu89 = c89 plus GCC extensions
# c99 = ISO C99 standard (not yet fully implemented)
# gnu99 = c99 plus GCC extensions
CSTANDARD = -std=c99
# Place -D or -U options here for C sources
CDEFS = -DF_CPU=$(F_CPU)UL
CDEFS += -DARDUINO_MODEL_PID=$(ARDUINO_MODEL_PID)
CDEFS += -DF_CLOCK=$(F_CLOCK)UL
CDEFS += -DBOARD=BOARD_$(BOARD)
CDEFS += -DBOOT_START_ADDR=$(BOOT_START)UL
CDEFS += -DTX_RX_LED_PULSE_MS=3
CDEFS += $(LUFA_OPTS)
# Place -D or -U options here for ASM sources
ADEFS = -DF_CPU=$(F_CPU)
ADEFS += -DF_CLOCK=$(F_CLOCK)UL
ADEFS += -DBOARD=BOARD_$(BOARD)
CDEFS += -DBOOT_START_ADDR=$(BOOT_START)UL
ADEFS += $(LUFA_OPTS)
# Place -D or -U options here for C++ sources
CPPDEFS = -DF_CPU=$(F_CPU)UL
CPPDEFS += -DF_CLOCK=$(F_CLOCK)UL
CPPDEFS += -DBOARD=BOARD_$(BOARD)
CDEFS += -DBOOT_START_ADDR=$(BOOT_START)UL
CPPDEFS += $(LUFA_OPTS)
#CPPDEFS += -D__STDC_LIMIT_MACROS
#CPPDEFS += -D__STDC_CONSTANT_MACROS
#---------------- Compiler Options C ----------------
# -g*: generate debugging information
# -O*: optimization level
# -f...: tuning, see GCC manual and avr-libc documentation
# -Wall...: warning level
# -Wa,...: tell GCC to pass this to the assembler.
# -adhlns...: create assembler listing
CFLAGS = -g$(DEBUG)
CFLAGS += $(CDEFS)
CFLAGS += -O$(OPT)
CFLAGS += -funsigned-char
CFLAGS += -funsigned-bitfields
CFLAGS += -ffunction-sections
CFLAGS += -fno-inline-small-functions
CFLAGS += -fpack-struct
CFLAGS += -fshort-enums
CFLAGS += -fno-strict-aliasing
CFLAGS += -Wall
CFLAGS += -Wstrict-prototypes
#CFLAGS += -mshort-calls
#CFLAGS += -fno-unit-at-a-time
#CFLAGS += -Wundef
#CFLAGS += -Wunreachable-code
#CFLAGS += -Wsign-compare
CFLAGS += -Wa,-adhlns=$(<:%.c=$(OBJDIR)/%.lst)
CFLAGS += $(patsubst %,-I%,$(EXTRAINCDIRS))
CFLAGS += $(CSTANDARD)
#---------------- Compiler Options C++ ----------------
# -g*: generate debugging information
# -O*: optimization level
# -f...: tuning, see GCC manual and avr-libc documentation
# -Wall...: warning level
# -Wa,...: tell GCC to pass this to the assembler.
# -adhlns...: create assembler listing
CPPFLAGS = -g$(DEBUG)
CPPFLAGS += $(CPPDEFS)
CPPFLAGS += -O$(OPT)
CPPFLAGS += -funsigned-char
CPPFLAGS += -funsigned-bitfields
CPPFLAGS += -fpack-struct
CPPFLAGS += -fshort-enums
CPPFLAGS += -fno-exceptions
CPPFLAGS += -Wall
CPPFLAGS += -Wundef
#CPPFLAGS += -mshort-calls
#CPPFLAGS += -fno-unit-at-a-time
#CPPFLAGS += -Wstrict-prototypes
#CPPFLAGS += -Wunreachable-code
#CPPFLAGS += -Wsign-compare
CPPFLAGS += -Wa,-adhlns=$(<:%.cpp=$(OBJDIR)/%.lst)
CPPFLAGS += $(patsubst %,-I%,$(EXTRAINCDIRS))
#CPPFLAGS += $(CSTANDARD)
#---------------- Assembler Options ----------------
# -Wa,...: tell GCC to pass this to the assembler.
# -adhlns: create listing
# -gstabs: have the assembler create line number information; note that
# for use in COFF files, additional information about filenames
# and function names needs to be present in the assembler source
# files -- see avr-libc docs [FIXME: not yet described there]
# -listing-cont-lines: Sets the maximum number of continuation lines of hex
# dump that will be displayed for a given single line of source input.
ASFLAGS = $(ADEFS) -Wa,-adhlns=$(<:%.S=$(OBJDIR)/%.lst),-gstabs,--listing-cont-lines=100
#---------------- Library Options ----------------
# Minimalistic printf version
PRINTF_LIB_MIN = -Wl,-u,vfprintf -lprintf_min
# Floating point printf version (requires MATH_LIB = -lm below)
PRINTF_LIB_FLOAT = -Wl,-u,vfprintf -lprintf_flt
# If this is left blank, then it will use the Standard printf version.
PRINTF_LIB =
#PRINTF_LIB = $(PRINTF_LIB_MIN)
#PRINTF_LIB = $(PRINTF_LIB_FLOAT)
# Minimalistic scanf version
SCANF_LIB_MIN = -Wl,-u,vfscanf -lscanf_min
# Floating point + %[ scanf version (requires MATH_LIB = -lm below)
SCANF_LIB_FLOAT = -Wl,-u,vfscanf -lscanf_flt
# If this is left blank, then it will use the Standard scanf version.
SCANF_LIB =
#SCANF_LIB = $(SCANF_LIB_MIN)
#SCANF_LIB = $(SCANF_LIB_FLOAT)
MATH_LIB = -lm
# List any extra directories to look for libraries here.
# Each directory must be seperated by a space.
# Use forward slashes for directory separators.
# For a directory that has spaces, enclose it in quotes.
EXTRALIBDIRS =
#---------------- External Memory Options ----------------
# 64 KB of external RAM, starting after internal RAM (ATmega128!),
# used for variables (.data/.bss) and heap (malloc()).
#EXTMEMOPTS = -Wl,-Tdata=0x801100,--defsym=__heap_end=0x80ffff
# 64 KB of external RAM, starting after internal RAM (ATmega128!),
# only used for heap (malloc()).
#EXTMEMOPTS = -Wl,--section-start,.data=0x801100,--defsym=__heap_end=0x80ffff
EXTMEMOPTS =
#---------------- Linker Options ----------------
# -Wl,...: tell GCC to pass this to linker.
# -Map: create map file
# --cref: add cross reference to map file
LDFLAGS = -Wl,-Map=$(TARGET).map,--cref
LDFLAGS += -Wl,--section-start=.text=$(BOOT_START)
LDFLAGS += -Wl,--relax
LDFLAGS += -Wl,--gc-sections
LDFLAGS += $(EXTMEMOPTS)
LDFLAGS += $(patsubst %,-L%,$(EXTRALIBDIRS))
LDFLAGS += $(PRINTF_LIB) $(SCANF_LIB) $(MATH_LIB)
#LDFLAGS += -T linker_script.x
#---------------- Programming Options (avrdude) ----------------
# Fuse settings for Arduino Uno DFU bootloader project
AVRDUDE_FUSES = -U efuse:w:0xF4:m -U hfuse:w:0xD9:m -U lfuse:w:0xFF:m
# Lock settings for Arduino Uno DFU bootloader project
AVRDUDE_LOCK = -U lock:w:0x0F:m
# Programming hardware
# Type: avrdude -c ?
# to get a full listing.
#
AVRDUDE_PROGRAMMER = avrispmkii
# com1 = serial port. Use lpt1 to connect to parallel port.
AVRDUDE_PORT = usb
AVRDUDE_WRITE_FLASH = -U flash:w:$(TARGET).hex
#AVRDUDE_WRITE_EEPROM = -U eeprom:w:$(TARGET).eep
# Uncomment the following if you want avrdude's erase cycle counter.
# Note that this counter needs to be initialized first using -Yn,
# see avrdude manual.
#AVRDUDE_ERASE_COUNTER = -y
# Uncomment the following if you do /not/ wish a verification to be
# performed after programming the device.
#AVRDUDE_NO_VERIFY = -V
# Increase verbosity level. Please use this when submitting bug
# reports about avrdude. See <http://savannah.nongnu.org/projects/avrdude>
# to submit bug reports.
#AVRDUDE_VERBOSE = -v -v
AVRDUDE_FLAGS = -p $(MCU_AVRDUDE) -F -P $(AVRDUDE_PORT) -c $(AVRDUDE_PROGRAMMER)
AVRDUDE_FLAGS += $(AVRDUDE_NO_VERIFY)
AVRDUDE_FLAGS += $(AVRDUDE_VERBOSE)
AVRDUDE_FLAGS += $(AVRDUDE_ERASE_COUNTER)
#---------------- Debugging Options ----------------
# For simulavr only - target MCU frequency.
DEBUG_MFREQ = $(F_CPU)
# Set the DEBUG_UI to either gdb or insight.
# DEBUG_UI = gdb
DEBUG_UI = insight
# Set the debugging back-end to either avarice, simulavr.
DEBUG_BACKEND = avarice
#DEBUG_BACKEND = simulavr
# GDB Init Filename.
GDBINIT_FILE = __avr_gdbinit
# When using avarice settings for the JTAG
JTAG_DEV = /dev/com1
# Debugging port used to communicate between GDB / avarice / simulavr.
DEBUG_PORT = 4242
# Debugging host used to communicate between GDB / avarice / simulavr, normally
# just set to localhost unless doing some sort of crazy debugging when
# avarice is running on a different computer.
DEBUG_HOST = localhost
#============================================================================
# Define programs and commands.
SHELL = sh
CC = avr-gcc
OBJCOPY = avr-objcopy
OBJDUMP = avr-objdump
SIZE = avr-size
AR = avr-ar rcs
NM = avr-nm
AVRDUDE = avrdude
REMOVE = rm -f
REMOVEDIR = rm -rf
COPY = cp
WINSHELL = cmd
# Define Messages
# English
MSG_ERRORS_NONE = Errors: none
MSG_BEGIN = -------- begin --------
MSG_END = -------- end --------
MSG_SIZE_BEFORE = Size before:
MSG_SIZE_AFTER = Size after:
MSG_COFF = Converting to AVR COFF:
MSG_EXTENDED_COFF = Converting to AVR Extended COFF:
MSG_FLASH = Creating load file for Flash:
MSG_EEPROM = Creating load file for EEPROM:
MSG_EXTENDED_LISTING = Creating Extended Listing:
MSG_SYMBOL_TABLE = Creating Symbol Table:
MSG_LINKING = Linking:
MSG_COMPILING = Compiling C:
MSG_COMPILING_CPP = Compiling C++:
MSG_ASSEMBLING = Assembling:
MSG_CLEANING = Cleaning project:
MSG_CREATING_LIBRARY = Creating library:
# Define all object files.
OBJ = $(SRC:%.c=$(OBJDIR)/%.o) $(CPPSRC:%.cpp=$(OBJDIR)/%.o) $(ASRC:%.S=$(OBJDIR)/%.o)
# Define all listing files.
LST = $(SRC:%.c=$(OBJDIR)/%.lst) $(CPPSRC:%.cpp=$(OBJDIR)/%.lst) $(ASRC:%.S=$(OBJDIR)/%.lst)
# Compiler flags to generate dependency files.
GENDEPFLAGS = -MMD -MP -MF .dep/$(@F).d
# Combine all necessary flags and optional flags.
# Add target processor to flags.
ALL_CFLAGS = -mmcu=$(MCU) -I. $(CFLAGS) $(GENDEPFLAGS)
ALL_CPPFLAGS = -mmcu=$(MCU) -I. -x c++ $(CPPFLAGS) $(GENDEPFLAGS)
ALL_ASFLAGS = -mmcu=$(MCU) -I. -x assembler-with-cpp $(ASFLAGS)
# Default target.
all: begin gccversion sizebefore build sizeafter end
# Change the build target to build a HEX file or a library.
build: elf hex eep lss sym
#build: lib
elf: $(TARGET).elf
hex: $(TARGET).hex
eep: $(TARGET).eep
lss: $(TARGET).lss
sym: $(TARGET).sym
LIBNAME=lib$(TARGET).a
lib: $(LIBNAME)
# Eye candy.
# AVR Studio 3.x does not check make's exit code but relies on
# the following magic strings to be generated by the compile job.
begin:
@echo
@echo $(MSG_BEGIN)
end:
@echo $(MSG_END)
@echo
# Display size of file.
HEXSIZE = $(SIZE) --target=$(FORMAT) $(TARGET).hex
ELFSIZE = $(SIZE) $(MCU_FLAG) $(FORMAT_FLAG) $(TARGET).elf
MCU_FLAG = $(shell $(SIZE) --help | grep -- --mcu > /dev/null && echo --mcu=$(MCU) )
FORMAT_FLAG = $(shell $(SIZE) --help | grep -- --format=.*avr > /dev/null && echo --format=avr )
sizebefore:
@if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_BEFORE); $(ELFSIZE); \
2>/dev/null; echo; fi
sizeafter:
@if test -f $(TARGET).elf; then echo; echo $(MSG_SIZE_AFTER); $(ELFSIZE); \
2>/dev/null; echo; fi
# Display compiler version information.
gccversion :
@$(CC) --version
# Program the device.
program: $(TARGET).hex $(TARGET).eep
$(AVRDUDE) $(AVRDUDE_FLAGS) $(AVRDUDE_WRITE_FLASH) $(AVRDUDE_WRITE_EEPROM) $(AVRDUDE_FUSES) $(AVRDUDE_LOCK)
# Generate avr-gdb config/init file which does the following:
# define the reset signal, load the target file, connect to target, and set
# a breakpoint at main().
gdb-config:
@$(REMOVE) $(GDBINIT_FILE)
@echo define reset >> $(GDBINIT_FILE)
@echo SIGNAL SIGHUP >> $(GDBINIT_FILE)
@echo end >> $(GDBINIT_FILE)
@echo file $(TARGET).elf >> $(GDBINIT_FILE)
@echo target remote $(DEBUG_HOST):$(DEBUG_PORT) >> $(GDBINIT_FILE)
ifeq ($(DEBUG_BACKEND),simulavr)
@echo load >> $(GDBINIT_FILE)
endif
@echo break main >> $(GDBINIT_FILE)
debug: gdb-config $(TARGET).elf
ifeq ($(DEBUG_BACKEND), avarice)
@echo Starting AVaRICE - Press enter when "waiting to connect" message displays.
@$(WINSHELL) /c start avarice --jtag $(JTAG_DEV) --erase --program --file \
$(TARGET).elf $(DEBUG_HOST):$(DEBUG_PORT)
@$(WINSHELL) /c pause
else
@$(WINSHELL) /c start simulavr --gdbserver --device $(MCU) --clock-freq \
$(DEBUG_MFREQ) --port $(DEBUG_PORT)
endif
@$(WINSHELL) /c start avr-$(DEBUG_UI) --command=$(GDBINIT_FILE)
# Convert ELF to COFF for use in debugging / simulating in AVR Studio or VMLAB.
COFFCONVERT = $(OBJCOPY) --debugging
COFFCONVERT += --change-section-address .data-0x800000
COFFCONVERT += --change-section-address .bss-0x800000
COFFCONVERT += --change-section-address .noinit-0x800000
COFFCONVERT += --change-section-address .eeprom-0x810000
coff: $(TARGET).elf
@echo
@echo $(MSG_COFF) $(TARGET).cof
$(COFFCONVERT) -O coff-avr $< $(TARGET).cof
extcoff: $(TARGET).elf
@echo
@echo $(MSG_EXTENDED_COFF) $(TARGET).cof
$(COFFCONVERT) -O coff-ext-avr $< $(TARGET).cof
# Create final output files (.hex, .eep) from ELF output file.
%.hex: %.elf
@echo
@echo $(MSG_FLASH) $@
$(OBJCOPY) -O $(FORMAT) -R .eeprom -R .fuse -R .lock $< $@
%.eep: %.elf
@echo
@echo $(MSG_EEPROM) $@
-$(OBJCOPY) -j .eeprom --set-section-flags=.eeprom="alloc,load" \
--change-section-lma .eeprom=0 --no-change-warnings -O $(FORMAT) $< $@ || exit 0
# Create extended listing file from ELF output file.
%.lss: %.elf
@echo
@echo $(MSG_EXTENDED_LISTING) $@
$(OBJDUMP) -h -S -z $< > $@
# Create a symbol table from ELF output file.
%.sym: %.elf
@echo
@echo $(MSG_SYMBOL_TABLE) $@
$(NM) -n $< > $@
# Create library from object files.
.SECONDARY : $(TARGET).a
.PRECIOUS : $(OBJ)
%.a: $(OBJ)
@echo
@echo $(MSG_CREATING_LIBRARY) $@
$(AR) $@ $(OBJ)
# Link: create ELF output file from object files.
.SECONDARY : $(TARGET).elf
.PRECIOUS : $(OBJ)
%.elf: $(OBJ)
@echo
@echo $(MSG_LINKING) $@
$(CC) $(ALL_CFLAGS) $^ --output $@ $(LDFLAGS)
# Compile: create object files from C source files.
$(OBJDIR)/%.o : %.c
@echo
@echo $(MSG_COMPILING) $<
$(CC) -c $(ALL_CFLAGS) $< -o $@
# Compile: create object files from C++ source files.
$(OBJDIR)/%.o : %.cpp
@echo
@echo $(MSG_COMPILING_CPP) $<
$(CC) -c $(ALL_CPPFLAGS) $< -o $@
# Compile: create assembler files from C source files.
%.s : %.c
$(CC) -S $(ALL_CFLAGS) $< -o $@
# Compile: create assembler files from C++ source files.
%.s : %.cpp
$(CC) -S $(ALL_CPPFLAGS) $< -o $@
# Assemble: create object files from assembler source files.
$(OBJDIR)/%.o : %.S
@echo
@echo $(MSG_ASSEMBLING) $<
$(CC) -c $(ALL_ASFLAGS) $< -o $@
# Create preprocessed source for use in sending a bug report.
%.i : %.c
$(CC) -E -mmcu=$(MCU) -I. $(CFLAGS) $< -o $@
# Target: clean project.
clean: begin clean_list end
clean_list :
@echo
@echo $(MSG_CLEANING)
$(REMOVE) $(TARGET).hex
$(REMOVE) $(TARGET).eep
$(REMOVE) $(TARGET).cof
$(REMOVE) $(TARGET).elf
$(REMOVE) $(TARGET).map
$(REMOVE) $(TARGET).sym
$(REMOVE) $(TARGET).lss
$(REMOVE) $(SRC:%.c=$(OBJDIR)/%.o)
$(REMOVE) $(SRC:%.c=$(OBJDIR)/%.lst)
$(REMOVE) $(SRC:.c=.s)
$(REMOVE) $(SRC:.c=.d)
$(REMOVE) $(SRC:.c=.i)
$(REMOVEDIR) .dep
doxygen:
@echo Generating Project Documentation...
@doxygen Doxygen.conf
@echo Documentation Generation Complete.
clean_doxygen:
rm -rf Documentation
# Create object files directory
$(shell mkdir $(OBJDIR) 2>/dev/null)
# Include the dependency files.
-include $(shell mkdir .dep 2>/dev/null) $(wildcard .dep/*)
# Listing of phony targets.
.PHONY : all begin finish end sizebefore sizeafter gccversion \
build elf hex eep lss sym coff extcoff doxygen clean \
clean_list clean_doxygen program debug gdb-config

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To setup the project and program an ATMEG8U2 with the Arduino USB DFU bootloader:
1. unpack the source into LUFA's Bootloader directory
2. set ARDUINO_MODEL_PID in the makefile as appropriate
3. do "make clean; make; make program"
Check that the board enumerates as either "Arduino Uno DFU" or "Arduino Mega 2560 DFU". Test by uploading the Arduino-usbserial application firmware (see instructions in Arduino-usbserial directory)