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/* *****************************************************************************

* The MIT License

*

* Copyright (c) 2010 LeafLabs LLC.

*

* Permission is hereby granted, free of charge, to any person obtaining a copy

* of this software and associated documentation files (the "Software"), to deal

* in the Software without restriction, including without limitation the rights

* to use, copy, modify, merge, publish, distribute, sublicense, and/or sell

* copies of the Software, and to permit persons to whom the Software is

* furnished to do so, subject to the following conditions:

*

* The above copyright notice and this permission notice shall be included in

* all copies or substantial portions of the Software.

*

* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR

* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,

* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE

* AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER

* LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,

* OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN

* THE SOFTWARE.

* ****************************************************************************/

/**

* @file main.c

*

* @brief main loop and calling any hardware init stuff. timing hacks for EEPROM

* writes not to block usb interrupts. logic to handle 2 second timeout then

* jump to user code.

*

*/

#include "common.h"

#include "dfu.h"

extern volatile dfuUploadTypes_t userUploadType;

int main()

{

bool no_user_jump = FALSE;

bool dont_wait=FALSE;

systemReset(); // peripherals but not PC

setupCLK();

setupLEDAndButton();

setupUSB();

setupFLASH();

switch(checkAndClearBootloaderFlag())

{

case 0x01:

no_user_jump = TRUE;

#if defined(LED_BANK) && defined(LED_PIN) && defined(LED_ON_STATE)

strobePin(LED_BANK, LED_PIN, STARTUP_BLINKS, BLINK_FAST,LED_ON_STATE);

#endif

break;

case 0x02:

dont_wait=TRUE;

break;

default:

#ifdef FASTBOOT

dont_wait=TRUE;

#else

#if defined(LED_BANK) && defined(LED_PIN) && defined(LED_ON_STATE)

strobePin(LED_BANK, LED_PIN, STARTUP_BLINKS, BLINK_FAST,LED_ON_STATE);

#endif

#endif

if (!checkUserCode(USER_CODE_FLASH0X8005000) && !checkUserCode(USER_CODE_FLASH0X8002000))

{

no_user_jump = TRUE;

}

else if (readButtonState())

{

no_user_jump = TRUE;

#ifdef FASTBOOT

dont_wait=FALSE;

#endif

}

break;

}

if (!dont_wait)

{

int delay_count = 0;

while ((delay_count++ < BOOTLOADER_WAIT) || no_user_jump)

{

#if defined(LED_BANK) && defined(LED_PIN) && defined(LED_ON_STATE)

strobePin(LED_BANK, LED_PIN, 1, BLINK_SLOW,LED_ON_STATE);

#endif

if (dfuUploadStarted())

{

dfuFinishUpload(); // systemHardReset from DFU once done

}

}

}

if (checkUserCode(USER_CODE_FLASH0X8002000))

{

jumpToUser(USER_CODE_FLASH0X8002000);

}

else

{

if (checkUserCode(USER_CODE_FLASH0X8005000))

{

jumpToUser(USER_CODE_FLASH0X8005000);

}

else

{

// Nothing to execute in either Flash or RAM

#if defined(LED_BANK) && defined(LED_PIN) && defined(LED_ON_STATE)

strobePin(LED_BANK, LED_PIN, 5, BLINK_FAST,LED_ON_STATE);

#endif

systemHardReset();

}

}

return 0;// Added to please the compiler

}