Add in USB_INT_RegisterHandlers() internal function to register the interrupt handler...

[pub/USBasp.git] / Bootloaders / DFU / BootloaderDFU.c

diff --git a/Bootloaders/DFU/BootloaderDFU.c b/Bootloaders/DFU/BootloaderDFU.c
index d7bec1f..717c934 100644 (file)
--- a/Bootloaders/DFU/BootloaderDFU.c
+++ b/Bootloaders/DFU/BootloaderDFU.c
@@ -1,13 +1,13 @@
 /*
              LUFA Library
 /*
              LUFA Library

-     Copyright (C) Dean Camera, 2010.
+     Copyright (C) Dean Camera, 2011.

 
   dean [at] fourwalledcubicle [dot] com
 
   dean [at] fourwalledcubicle [dot] com

-      www.fourwalledcubicle.com
+           www.lufa-lib.org

 */
 
 /*
 */
 
 /*

-  Copyright 2010  Dean Camera (dean [at] fourwalledcubicle [dot] com)
+  Copyright 2011  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


@@ -38,59 +38,59 @@
 
 /** Flag to indicate if the bootloader is currently running in secure mode, disallowing memory operations
  *  other than erase. This is initially set to the value set by SECURE_MODE, and cleared by the bootloader
 
 /** Flag to indicate if the bootloader is currently running in secure mode, disallowing memory operations
  *  other than erase. This is initially set to the value set by SECURE_MODE, and cleared by the bootloader

- *  once a memory erase has completed.
+ *  once a memory erase has completed in a bootloader session.

  */
  */

-bool IsSecure      = SECURE_MODE;
+static bool IsSecure = SECURE_MODE;

 
 /** 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).
  */
 
 /** 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;
+static 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.
  */
 
 /** 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;
+static bool WaitForExit = false;

 
 /** Current DFU state machine state, one of the values in the DFU_State_t enum. */
 
 /** Current DFU state machine state, one of the values in the DFU_State_t enum. */

-uint8_t DFU_State = dfuIDLE;
+static 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.
  */
 
 /** 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;
+static uint8_t DFU_Status = OK;

 
 /** Data containing the DFU command sent from the host. */
 
 /** Data containing the DFU command sent from the host. */

-DFU_Command_t SentCommand;
+static 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.
  */
 
 /** 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;
+static 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.
  */
 
 /** 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;
+static 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.
  */
 
 /** 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;
+static 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).
  */
 
 /** 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;
+static 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).
  */
 
 /** 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;
+static uint16_t EndAddr = 0x0000;

 
 
 /** Main program entry point. This routine configures the hardware required by the bootloader, then continuously
 
 
 /** Main program entry point. This routine configures the hardware required by the bootloader, then continuously


@@ -102,6 +102,23 @@ 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
+

        /* Enable global interrupts so that the USB stack can function */
        sei();
 
        /* Enable global interrupts so that the USB stack can function */
        sei();
 


@@ -138,25 +155,32 @@ void SetupHardware(void)
 void ResetHardware(void)
 {
        /* Shut down the USB subsystem */
 void ResetHardware(void)
 {
        /* Shut down the USB subsystem */

-       USB_ShutDown();
+       USB_Disable();

 
        /* Relocate the interrupt vector table back to the application section */
        MCUCR = (1 << IVCE);
        MCUCR = 0;
 }
 
 
        /* 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.
+/** Event handler for the USB_ControlRequest event. This is used to catch and process control requests sent to
+ *  the device from the USB host before passing along unhandled control requests to the library for processing
+ *  internally.

  */
  */

-void EVENT_USB_Device_UnhandledControlRequest(void)
+void EVENT_USB_Device_ControlRequest(void)

 {
        /* Get the size of the command and data from the wLength value */
        SentCommand.DataSize = USB_ControlRequest.wLength;
 {
        /* Get the size of the command and data from the wLength value */
        SentCommand.DataSize = USB_ControlRequest.wLength;

+       
+       /* Ignore any requests that aren't directed to the DFU interface */
+       if ((USB_ControlRequest.bmRequestType & (CONTROL_REQTYPE_TYPE | CONTROL_REQTYPE_RECIPIENT)) !=
+           (REQTYPE_CLASS | REQREC_INTERFACE))
+       {
+               return;
+       }

 
        switch (USB_ControlRequest.bRequest)
        {
 
        switch (USB_ControlRequest.bRequest)
        {

-               case REQ_DFU_DNLOAD:
+               case DFU_REQ_DNLOAD:

                        Endpoint_ClearSETUP();
 
                        /* Check if bootloader is waiting to terminate */
                        Endpoint_ClearSETUP();
 
                        /* Check if bootloader is waiting to terminate */


@@ -309,7 +333,7 @@ void EVENT_USB_Device_UnhandledControlRequest(void)
                        Endpoint_ClearStatusStage();
 
                        break;
                        Endpoint_ClearStatusStage();
 
                        break;

-               case REQ_DFU_UPLOAD:
+               case DFU_REQ_UPLOAD:

                        Endpoint_ClearSETUP();
 
                        while (!(Endpoint_IsINReady()))
                        Endpoint_ClearSETUP();
 
                        while (!(Endpoint_IsINReady()))


@@ -408,7 +432,7 @@ void EVENT_USB_Device_UnhandledControlRequest(void)
 
                        Endpoint_ClearStatusStage();
                        break;
 
                        Endpoint_ClearStatusStage();
                        break;

-               case REQ_DFU_GETSTATUS:
+               case DFU_REQ_GETSTATUS:

                        Endpoint_ClearSETUP();
 
                        /* Write 8-bit status value */
                        Endpoint_ClearSETUP();
 
                        /* Write 8-bit status value */


@@ -428,7 +452,7 @@ void EVENT_USB_Device_UnhandledControlRequest(void)
 
                        Endpoint_ClearStatusStage();
                        break;
 
                        Endpoint_ClearStatusStage();
                        break;

-               case REQ_DFU_CLRSTATUS:
+               case DFU_REQ_CLRSTATUS:

                        Endpoint_ClearSETUP();
 
                        /* Reset the status value variable to the default OK status */
                        Endpoint_ClearSETUP();
 
                        /* Reset the status value variable to the default OK status */


@@ -436,7 +460,7 @@ void EVENT_USB_Device_UnhandledControlRequest(void)
 
                        Endpoint_ClearStatusStage();
                        break;
 
                        Endpoint_ClearStatusStage();
                        break;

-               case REQ_DFU_GETSTATE:
+               case DFU_REQ_GETSTATE:

                        Endpoint_ClearSETUP();
 
                        /* Write the current device state to the endpoint */
                        Endpoint_ClearSETUP();
 
                        /* Write the current device state to the endpoint */


@@ -446,7 +470,7 @@ void EVENT_USB_Device_UnhandledControlRequest(void)
 
                        Endpoint_ClearStatusStage();
                        break;
 
                        Endpoint_ClearStatusStage();
                        break;

-               case REQ_DFU_ABORT:
+               case DFU_REQ_ABORT:

                        Endpoint_ClearSETUP();
 
                        /* Reset the current state variable to the default idle state */
                        Endpoint_ClearSETUP();
 
                        /* Reset the current state variable to the default idle state */