Add script reading bootloader flags

[pub/lufa.git] / Bootloaders / Printer / BootloaderPrinter.c

diff --git a/Bootloaders/Printer/BootloaderPrinter.c b/Bootloaders/Printer/BootloaderPrinter.c
index 3fec721..15f834a 100644 (file)
--- a/Bootloaders/Printer/BootloaderPrinter.c
+++ b/Bootloaders/Printer/BootloaderPrinter.c
@@ -1,13 +1,13 @@
 /*
              LUFA Library
 /*
              LUFA Library

-     Copyright (C) Dean Camera, 2013.
+     Copyright (C) Dean Camera, 2021.

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

-  Copyright 2013  Dean Camera (dean [at] fourwalledcubicle [dot] com)
+  Copyright 2021  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


@@ -67,7 +67,7 @@ USB_ClassInfo_PRNT_Device_t TextOnly_Printer_Interface =
 /** Intel HEX parser state machine state information, to track the contents of
  *  a HEX file streamed in as a sequence of arbitrary bytes.
  */
 /** Intel HEX parser state machine state information, to track the contents of
  *  a HEX file streamed in as a sequence of arbitrary bytes.
  */

-struct
+static struct

 {
        /** Current HEX parser state machine state. */
        uint8_t  ParserState;
 {
        /** Current HEX parser state machine state. */
        uint8_t  ParserState;


@@ -87,11 +87,11 @@ struct
        /** Checksum of the current record received so far. */
        uint8_t  Checksum;
        /** Starting address of the last addressed FLASH page. */
        /** Checksum of the current record received so far. */
        uint8_t  Checksum;
        /** Starting address of the last addressed FLASH page. */

-       uint32_t PageStartAddress;
+       flashaddr_t PageStartAddress;

        /** Current 32-bit byte extended base address in FLASH being targeted. */
        /** Current 32-bit byte extended base address in FLASH being targeted. */

-       uint32_t CurrBaseAddress;
+       flashaddr_t CurrBaseAddress;

        /** Current 32-bit byte address in FLASH being targeted. */
        /** Current 32-bit byte address in FLASH being targeted. */

-       uint32_t CurrAddress;
+       flashaddr_t CurrAddress;

 } HEXParser;
 
 /** Indicates if there is data waiting to be written to a physical page of
 } HEXParser;
 
 /** Indicates if there is data waiting to be written to a physical page of


@@ -119,9 +119,65 @@ uint16_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 (!(BootloaderAPI_ReadFuse(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 */
+               MCUSR &= ~(1 << WDRF);
+               wdt_disable();
+
+               /* Clear the boot key and jump to the user application */

                MagicBootKey = 0;
 
                // cppcheck-suppress constStatement
                MagicBootKey = 0;
 
                // cppcheck-suppress constStatement


@@ -165,8 +221,7 @@ static void FlushPageIfRequired(void)
        uint32_t NewPageStartAddress = (HEXParser.CurrAddress & ~(SPM_PAGESIZE - 1));
        if (HEXParser.PageStartAddress != NewPageStartAddress)
        {
        uint32_t NewPageStartAddress = (HEXParser.CurrAddress & ~(SPM_PAGESIZE - 1));
        if (HEXParser.PageStartAddress != NewPageStartAddress)
        {

-               boot_page_write(HEXParser.PageStartAddress);
-               boot_spm_busy_wait();
+               BootloaderAPI_WritePage(HEXParser.PageStartAddress);

 
                HEXParser.PageStartAddress = NewPageStartAddress;
 
 
                HEXParser.PageStartAddress = NewPageStartAddress;
 


@@ -265,14 +320,13 @@ static void ParseIntelHEXByte(const char ReadCharacter)
                                        /* If we are writing to a new page, we need to erase it first */
                                        if (!(PageDirty))
                                        {
                                        /* If we are writing to a new page, we need to erase it first */
                                        if (!(PageDirty))
                                        {

-                                               boot_page_erase(HEXParser.PageStartAddress);
-                                               boot_spm_busy_wait();
+                                               BootloaderAPI_ErasePage(HEXParser.PageStartAddress);

 
                                                PageDirty = true;
                                        }
 
                                        /* Fill the FLASH memory buffer with the new word of data */
 
                                                PageDirty = true;
                                        }
 
                                        /* Fill the FLASH memory buffer with the new word of data */

-                                       boot_page_fill(HEXParser.CurrAddress, NewDataWord);
+                                       BootloaderAPI_FillWord(HEXParser.CurrAddress, NewDataWord);

                                        HEXParser.CurrAddress += 2;
 
                                        /* Flush the FLASH page to physical memory if we are crossing a page boundary */
                                        HEXParser.CurrAddress += 2;
 
                                        /* Flush the FLASH page to physical memory if we are crossing a page boundary */


@@ -347,6 +401,9 @@ int main(void)
                USB_USBTask();
        }
 
                USB_USBTask();
        }
 

+       /* Wait a short time to end all USB transactions and then disconnect */
+       _delay_us(1000);
+

        /* Disconnect from the host - USB interface will be reset later along with the AVR */
        USB_Detach();
 
        /* Disconnect from the host - USB interface will be reset later along with the AVR */
        USB_Detach();