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Update Studio Integration DLL, to include package logging.
[pub/USBasp.git] / Bootloaders / DFU / BootloaderDFU.c
diff --git a/Bootloaders/DFU/BootloaderDFU.c b/Bootloaders/DFU/BootloaderDFU.c
index 32b6eac..4a0d730 100644 (file)
--- a/Bootloaders/DFU/BootloaderDFU.c
+++ b/Bootloaders/DFU/BootloaderDFU.c
@@ -1,13 +1,13 @@
 /*
              LUFA Library
 /*
              LUFA Library
-     Copyright (C) Dean Camera, 2012.
+     Copyright (C) Dean Camera, 2015.
 
   dean [at] fourwalledcubicle [dot] com
            www.lufa-lib.org
 */
 
 /*
 
   dean [at] fourwalledcubicle [dot] com
            www.lufa-lib.org
 */
 
 /*
-  Copyright 2012  Dean Camera (dean [at] fourwalledcubicle [dot] com)
+  Copyright 2015  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
@@ -18,7 +18,7 @@
   advertising or publicity pertaining to distribution of the
   software without specific, written prior permission.
 
   advertising or publicity pertaining to distribution of the
   software without specific, written prior permission.
 
-  The author disclaim all warranties with regard to this
+  The author disclaims 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
   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
@@ -97,7 +97,7 @@ static uint16_t EndAddr = 0x0000;
  *  low when the application attempts to start via a watchdog reset, the bootloader will re-start. If set to the value
  *  \ref MAGIC_BOOT_KEY the special init function \ref Application_Jump_Check() will force the application to start.
  */
  *  low when the application attempts to start via a watchdog reset, the bootloader will re-start. If set to the value
  *  \ref MAGIC_BOOT_KEY the special init function \ref Application_Jump_Check() will force the application to start.
  */
-uint32_t MagicBootKey ATTR_NO_INIT;
+uint16_t MagicBootKey ATTR_NO_INIT;
 
 
 /** Special startup routine to check if the bootloader was started via a watchdog reset, and if the magic application
 
 
 /** Special startup routine to check if the bootloader was started via a watchdog reset, and if the magic application
@@ -106,12 +106,63 @@ uint32_t MagicBootKey ATTR_NO_INIT;
  */
 void Application_Jump_Check(void)
 {
  */
 void Application_Jump_Check(void)
 {
-       /* If the reset source was the bootloader and the key is correct, clear it and jump to the application */
-       if ((MCUSR & (1 << WDRF)) && (MagicBootKey == MAGIC_BOOT_KEY))
+       bool JumpToApplication = false;
+
+       #if (BOARD == BOARD_LEONARDO)
+               /* Enable pull-up on the IO13 pin so we can use it to select the mode */
+               PORTC |= (1 << 7);
+               Delay_MS(10);
+
+               /* If IO13 is not jumpered to ground, start the user application instead */
+               JumpToApplication = ((PINC & (1 << 7)) != 0);
+
+               /* Disable pull-up after the check has completed */
+               PORTC &= ~(1 << 7);
+       #elif ((BOARD == BOARD_XPLAIN) || (BOARD == BOARD_XPLAIN_REV1))
+               /* Disable JTAG debugging */
+               JTAG_DISABLE();
+
+               /* 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 */
+               JumpToApplication = ((PINF & (1 << 4)) != 0);
+
+               /* Re-enable JTAG debugging */
+               JTAG_ENABLE();
+       #else
+               /* Check if the device's BOOTRST fuse is set */
+               if (boot_lock_fuse_bits_get(GET_HIGH_FUSE_BITS) & FUSE_BOOTRST)
+               {
+                       /* If the reset source was not an external reset or the key is correct, clear it and jump to the application */
+                       if (!(MCUSR & (1 << EXTRF)) || (MagicBootKey == MAGIC_BOOT_KEY))
+                         JumpToApplication = true;
+
+                       /* Clear reset source */
+                       MCUSR &= ~(1 << EXTRF);
+               }
+               else
+               {
+                       /* If the reset source was the bootloader and the key is correct, clear it and jump to the application;
+                        * this can happen in the HWBE fuse is set, and the HBE pin is low during the watchdog reset */
+                       if ((MCUSR & (1 << WDRF)) && (MagicBootKey == MAGIC_BOOT_KEY))
+                               JumpToApplication = true;
+
+                       /* Clear reset source */
+                       MCUSR &= ~(1 << WDRF);
+               }
+       #endif
+
+       /* Don't run the user application if the reset vector is blank (no app loaded) */
+       bool ApplicationValid = (pgm_read_word_near(0) != 0xFFFF);
+
+       /* If a request has been made to jump to the user application, honor it */
+       if (JumpToApplication && ApplicationValid)
        {
                /* Turn off the watchdog */
        {
                /* Turn off the watchdog */
-               MCUSR &= ~(1<<WDRF);
-               wdt_disable(); 
+               MCUSR &= ~(1 << WDRF);
+               wdt_disable();
 
                /* Clear the boot key and jump to the user application */
                MagicBootKey = 0;
 
                /* Clear the boot key and jump to the user application */
                MagicBootKey = 0;
@@ -130,28 +181,11 @@ 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
-
        /* Turn on first LED on the board to indicate that the bootloader has started */
        LEDs_SetAllLEDs(LEDS_LED1);
 
        /* Enable global interrupts so that the USB stack can function */
        /* Turn on first LED on the board to indicate that the bootloader has started */
        LEDs_SetAllLEDs(LEDS_LED1);
 
        /* Enable global interrupts so that the USB stack can function */
-       sei();
+       GlobalInterruptEnable();
 
        /* Run the USB management task while the bootloader is supposed to be running */
        while (RunBootloader || WaitForExit)
 
        /* Run the USB management task while the bootloader is supposed to be running */
        while (RunBootloader || WaitForExit)
@@ -193,7 +227,7 @@ static void ResetHardware(void)
        /* Shut down the USB and other board hardware drivers */
        USB_Disable();
        LEDs_Disable();
        /* Shut down the USB and other board hardware drivers */
        USB_Disable();
        LEDs_Disable();
-       
+
        /* Disable Bootloader active LED toggle timer */
        TIMSK1 = 0;
        TCCR1B = 0;
        /* Disable Bootloader active LED toggle timer */
        TIMSK1 = 0;
        TCCR1B = 0;
@@ -485,6 +519,12 @@ void EVENT_USB_Device_ControlRequest(void)
                case DFU_REQ_GETSTATUS:
                        Endpoint_ClearSETUP();
 
                case DFU_REQ_GETSTATUS:
                        Endpoint_ClearSETUP();
 
+                       while (!(Endpoint_IsINReady()))
+                       {
+                               if (USB_DeviceState == DEVICE_STATE_Unattached)
+                                 return;
+                       }
+
                        /* Write 8-bit status value */
                        Endpoint_Write_8(DFU_Status);
 
                        /* Write 8-bit status value */
                        Endpoint_Write_8(DFU_Status);
 
@@ -513,6 +553,12 @@ void EVENT_USB_Device_ControlRequest(void)
                case DFU_REQ_GETSTATE:
                        Endpoint_ClearSETUP();
 
                case DFU_REQ_GETSTATE:
                        Endpoint_ClearSETUP();
 
+                       while (!(Endpoint_IsINReady()))
+                       {
+                               if (USB_DeviceState == DEVICE_STATE_Unattached)
+                                 return;
+                       }
+
                        /* Write the current device state to the endpoint */
                        Endpoint_Write_8(DFU_State);
 
                        /* Write the current device state to the endpoint */
                        Endpoint_Write_8(DFU_State);
 
@@ -673,7 +719,7 @@ static void ProcessMemReadCommand(void)
        {
                uint32_t CurrFlashAddress = 0;
 
        {
                uint32_t CurrFlashAddress = 0;
 
-               while (CurrFlashAddress < BOOT_START_ADDR)
+               while (CurrFlashAddress < (uint32_t)BOOT_START_ADDR)
                {
                        /* Check if the current byte is not blank */
                        #if (FLASHEND > 0xFFFF)
                {
                        /* Check if the current byte is not blank */
                        #if (FLASHEND > 0xFFFF)
@@ -735,8 +781,9 @@ static void ProcessWriteCommand(void)
                        }
                        else                                                               // Start via jump
                        {
                        }
                        else                                                               // Start via jump
                        {
-                               /* Set the flag to terminate the bootloader at next opportunity */
-                               RunBootloader = false;
+                               /* Set the flag to terminate the bootloader at next opportunity if a valid application has been loaded */
+                               if (pgm_read_word_near(0) == 0xFFFF)
+                                 RunBootloader = false;
                        }
                }
        }
                        }
                }
        }
@@ -745,7 +792,7 @@ static void ProcessWriteCommand(void)
                uint32_t CurrFlashAddress = 0;
 
                /* Clear the application section of flash */
                uint32_t CurrFlashAddress = 0;
 
                /* Clear the application section of flash */
-               while (CurrFlashAddress < BOOT_START_ADDR)
+               while (CurrFlashAddress < (uint32_t)BOOT_START_ADDR)
                {
                        boot_page_erase(CurrFlashAddress);
                        boot_spm_busy_wait();
                {
                        boot_page_erase(CurrFlashAddress);
                        boot_spm_busy_wait();
@@ -769,13 +816,45 @@ static void ProcessWriteCommand(void)
 static void ProcessReadCommand(void)
 {
        const uint8_t BootloaderInfo[3] = {BOOTLOADER_VERSION, BOOTLOADER_ID_BYTE1, BOOTLOADER_ID_BYTE2};
 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};
+       const uint8_t SignatureInfo[4]  = {0x58, AVR_SIGNATURE_1, AVR_SIGNATURE_2, AVR_SIGNATURE_3};
 
 
-       uint8_t DataIndexToRead = SentCommand.Data[1];
+       uint8_t DataIndexToRead    = SentCommand.Data[1];
+       bool    ReadAddressInvalid = false;
 
 
-       if (IS_ONEBYTE_COMMAND(SentCommand.Data, 0x00))                         // Read bootloader info
-         ResponseByte = BootloaderInfo[DataIndexToRead];
+       if (IS_ONEBYTE_COMMAND(SentCommand.Data, 0x00))                        // Read bootloader info
+       {
+               if (DataIndexToRead < 3)
+                 ResponseByte = BootloaderInfo[DataIndexToRead];
+               else
+                 ReadAddressInvalid = true;
+       }
        else if (IS_ONEBYTE_COMMAND(SentCommand.Data, 0x01))                    // Read signature byte
        else if (IS_ONEBYTE_COMMAND(SentCommand.Data, 0x01))                    // Read signature byte
-         ResponseByte = SignatureInfo[DataIndexToRead - 0x30];
+       {
+               switch (DataIndexToRead)
+               {
+                       case 0x30:
+                               ResponseByte = SignatureInfo[0];
+                               break;
+                       case 0x31:
+                               ResponseByte = SignatureInfo[1];
+                               break;
+                       case 0x60:
+                               ResponseByte = SignatureInfo[2];
+                               break;
+                       case 0x61:
+                               ResponseByte = SignatureInfo[3];
+                               break;
+                       default:
+                               ReadAddressInvalid = true;
+                               break;
+               }
+       }
+
+       if (ReadAddressInvalid)
+       {
+               /* Set the state and status variables to indicate the error */
+               DFU_State  = dfuERROR;
+               DFU_Status = errADDRESS;
+       }
 }
 
 }
 
USB isp AVR programmer