Add script reading bootloader flags

[pub/lufa.git] / Bootloaders / HID / BootloaderHID.c

diff --git a/Bootloaders/HID/BootloaderHID.c b/Bootloaders/HID/BootloaderHID.c
index 5081762..8973bd8 100644 (file)
--- a/Bootloaders/HID/BootloaderHID.c
+++ b/Bootloaders/HID/BootloaderHID.c
@@ -1,13 +1,13 @@
 /*
              LUFA Library
 /*
              LUFA Library

-     Copyright (C) Dean Camera, 2012.
+     Copyright (C) Dean Camera, 2021.

 
   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 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


@@ -58,7 +58,13 @@ 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))
        {
        /* 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))
        {

+               /* Turn off the watchdog */
+               MCUSR &= ~(1 << WDRF);
+               wdt_disable();
+
+               /* Clear the boot key and jump to the user application */

                MagicBootKey = 0;
                MagicBootKey = 0;

+

                // cppcheck-suppress constStatement
                ((void (*)(void))0x0000)();
        }
                // cppcheck-suppress constStatement
                ((void (*)(void))0x0000)();
        }


@@ -78,6 +84,9 @@ int main(void)
        while (RunBootloader)
          USB_USBTask();
 
        while (RunBootloader)
          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();
 


@@ -97,6 +106,9 @@ static void SetupHardware(void)
        MCUSR &= ~(1 << WDRF);
        wdt_disable();
 
        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);
        /* Relocate the interrupt vector table to the bootloader section */
        MCUCR = (1 << IVCE);
        MCUCR = (1 << IVSEL);


@@ -143,6 +155,10 @@ void EVENT_USB_Device_ControlRequest(void)
                        uint16_t PageAddress = Endpoint_Read_16_LE();
                        #endif
 
                        uint16_t PageAddress = Endpoint_Read_16_LE();
                        #endif
 

+                       /* Determine if the given page address is correctly aligned to the
+                          start of a flash page. */
+                       bool PageAddressIsAligned = !(PageAddress & (SPM_PAGESIZE - 1));
+

                        /* Check if the command is a program page command, or a start application command */
                        #if (FLASHEND > 0xFFFF)
                        if ((uint16_t)(PageAddress >> 8) == COMMAND_STARTAPPLICATION)
                        /* Check if the command is a program page command, or a start application command */
                        #if (FLASHEND > 0xFFFF)
                        if ((uint16_t)(PageAddress >> 8) == COMMAND_STARTAPPLICATION)


@@ -152,11 +168,14 @@ void EVENT_USB_Device_ControlRequest(void)
                        {
                                RunBootloader = false;
                        }
                        {
                                RunBootloader = false;
                        }

-                       else
+                       else if ((PageAddress < BOOT_START_ADDR) && PageAddressIsAligned)

                        {
                                /* Erase the given FLASH page, ready to be programmed */
                        {
                                /* Erase the given FLASH page, ready to be programmed */

-                               boot_page_erase(PageAddress);
-                               boot_spm_busy_wait();
+                               ATOMIC_BLOCK(ATOMIC_RESTORESTATE)
+                               {
+                                       boot_page_erase(PageAddress);
+                                       boot_spm_busy_wait();
+                               }

 
                                /* Write each of the FLASH page's bytes in sequence */
                                for (uint8_t PageWord = 0; PageWord < (SPM_PAGESIZE / 2); PageWord++)
 
                                /* Write each of the FLASH page's bytes in sequence */
                                for (uint8_t PageWord = 0; PageWord < (SPM_PAGESIZE / 2); PageWord++)


@@ -173,8 +192,11 @@ void EVENT_USB_Device_ControlRequest(void)
                                }
 
                                /* Write the filled FLASH page to memory */
                                }
 
                                /* Write the filled FLASH page to memory */

-                               boot_page_write(PageAddress);
-                               boot_spm_busy_wait();
+                               ATOMIC_BLOCK(ATOMIC_RESTORESTATE)
+                               {
+                                       boot_page_write(PageAddress);
+                                       boot_spm_busy_wait();
+                               }

 
                                /* Re-enable RWW section */
                                boot_rww_enable();
 
                                /* Re-enable RWW section */
                                boot_rww_enable();