Be doubly-certain that the incomming CDC class driver's endpoint/pipe is flushed...

[pub/USBasp.git] / Bootloaders / TeensyHID / TeensyHID.c

diff --git a/Bootloaders/TeensyHID/TeensyHID.c b/Bootloaders/TeensyHID/TeensyHID.c
index e81c462..6cacfaf 100644 (file)
--- a/Bootloaders/TeensyHID/TeensyHID.c
+++ b/Bootloaders/TeensyHID/TeensyHID.c
@@ -1,21 +1,21 @@
 /*\r
              LUFA Library\r
 /*\r
              LUFA Library\r

-     Copyright (C) Dean Camera, 2009.\r
+     Copyright (C) Dean Camera, 2010.\r

               \r
   dean [at] fourwalledcubicle [dot] com\r
       www.fourwalledcubicle.com\r
 */\r
 \r
 /*\r
               \r
   dean [at] fourwalledcubicle [dot] com\r
       www.fourwalledcubicle.com\r
 */\r
 \r
 /*\r

-  Copyright 2009  Dean Camera (dean [at] fourwalledcubicle [dot] com)\r
-\r
-  Permission to use, copy, modify, and distribute this software\r
-  and its documentation for any purpose and without fee is hereby\r
-  granted, provided that the above copyright notice appear in all\r
-  copies and that both that the copyright notice and this\r
-  permission notice and warranty disclaimer appear in supporting\r
-  documentation, and that the name of the author not be used in\r
-  advertising or publicity pertaining to distribution of the\r
+  Copyright 2010  Dean Camera (dean [at] fourwalledcubicle [dot] com)\r
+\r
+  Permission to use, copy, modify, distribute, and sell this \r
+  software and its documentation for any purpose is hereby granted\r
+  without fee, provided that the above copyright notice appear in \r
+  all copies and that both that the copyright notice and this\r
+  permission notice and warranty disclaimer appear in supporting \r
+  documentation, and that the name of the author not be used in \r
+  advertising or publicity pertaining to distribution of the \r

   software without specific, written prior permission.\r
 \r
   The author disclaim all warranties with regard to this\r
   software without specific, written prior permission.\r
 \r
   The author disclaim all warranties with regard to this\r


@@ -33,22 +33,37 @@
  *  Main source file for the TeensyHID bootloader. This file contains the complete bootloader logic.\r
  */\r
  \r
  *  Main source file for the TeensyHID bootloader. This file contains the complete bootloader logic.\r
  */\r
  \r

-#define  INCLUDE_FROM_TEENSYHID_C\r

 #include "TeensyHID.h"\r
 \r
 #include "TeensyHID.h"\r
 \r

-/* Global Variables: */\r

 /** Flag to indicate if the bootloader should be running, or should exit and allow the application code to run\r
  *  via a soft reset. When cleared, the bootloader will abort, the USB interface will shut down and the application\r
  *  started via a forced watchdog reset.\r
  */\r
 bool RunBootloader = true;\r
 \r
 /** Flag to indicate if the bootloader should be running, or should exit and allow the application code to run\r
  *  via a soft reset. When cleared, the bootloader will abort, the USB interface will shut down and the application\r
  *  started via a forced watchdog reset.\r
  */\r
 bool RunBootloader = true;\r
 \r

-\r

 /** Main program entry point. This routine configures the hardware required by the bootloader, then continuously \r
  *  runs the bootloader processing routine until instructed to soft-exit.\r
  */\r
 int main(void)\r
 {\r
 /** Main program entry point. This routine configures the hardware required by the bootloader, then continuously \r
  *  runs the bootloader processing routine until instructed to soft-exit.\r
  */\r
 int main(void)\r
 {\r

+       /* Setup hardware required for the bootloader */\r
+       SetupHardware();\r
+       \r
+       while (RunBootloader)\r
+         USB_USBTask();\r
+       \r
+       /* Disconnect from the host - USB interface will be reset later along with the AVR */\r
+       USB_Detach();\r
+\r
+       /* Enable the watchdog and force a timeout to reset the AVR */\r
+       wdt_enable(WDTO_250MS);\r
+\r
+       for (;;);\r
+}\r
+\r
+/** Configures all hardware required for the bootloader. */\r
+void SetupHardware(void)\r
+{\r

        /* Disable watchdog if enabled by bootloader/fuses */\r
        MCUSR &= ~(1 << WDRF);\r
        wdt_disable();\r
        /* Disable watchdog if enabled by bootloader/fuses */\r
        MCUSR &= ~(1 << WDRF);\r
        wdt_disable();\r


@@ -62,26 +77,12 @@ int main(void)
 \r
        /* Initialize USB subsystem */\r
        USB_Init();\r
 \r
        /* Initialize USB subsystem */\r
        USB_Init();\r

-       \r
-       while (RunBootloader)\r
-         USB_USBTask();\r
-         \r
-       /* Shut down the USB interface, so that the host will register the disconnection */\r
-       USB_ShutDown();\r
-\r
-       /* Wait 100ms to give the host time to register the disconnection */\r
-       _delay_ms(100);\r
-\r
-       /* Enable the watchdog and force a timeout to reset the AVR */\r
-       wdt_enable(WDTO_250MS);\r
-                                       \r
-       for (;;);\r

 }\r
 \r
 /** Event handler for the USB_ConfigurationChanged event. This configures the device's endpoints ready\r
  *  to relay data to and from the attached USB host.\r
  */\r
 }\r
 \r
 /** Event handler for the USB_ConfigurationChanged event. This configures the device's endpoints ready\r
  *  to relay data to and from the attached USB host.\r
  */\r

-EVENT_HANDLER(USB_ConfigurationChanged)\r
+void EVENT_USB_Device_ConfigurationChanged(void)\r

 {\r
        /* Setup HID Report Endpoint */\r
        Endpoint_ConfigureEndpoint(HID_EPNUM, EP_TYPE_INTERRUPT,\r
 {\r
        /* Setup HID Report Endpoint */\r
        Endpoint_ConfigureEndpoint(HID_EPNUM, EP_TYPE_INTERRUPT,\r


@@ -89,65 +90,60 @@ EVENT_HANDLER(USB_ConfigurationChanged)
                                   ENDPOINT_BANK_SINGLE);\r
 }\r
 \r
                                   ENDPOINT_BANK_SINGLE);\r
 }\r
 \r

-/** Event handler for the USB_UnhandledControlPacket event. This is used to catch standard and class specific\r
+/** Event handler for the USB_UnhandledControlRequest event. This is used to catch standard and class specific\r

  *  control requests that are not handled internally by the USB library (including the HID commands, which are\r
  *  all issued via the control endpoint), so that they can be handled appropriately for the application.\r
  */\r
  *  control requests that are not handled internally by the USB library (including the HID commands, which are\r
  *  all issued via the control endpoint), so that they can be handled appropriately for the application.\r
  */\r

-EVENT_HANDLER(USB_UnhandledControlPacket)\r
+void EVENT_USB_Device_UnhandledControlRequest(void)\r

 {\r
        /* Handle HID Class specific requests */\r
 {\r
        /* Handle HID Class specific requests */\r

-       switch (bRequest)\r
+       switch (USB_ControlRequest.bRequest)\r

        {\r
                case REQ_SetReport:\r
        {\r
                case REQ_SetReport:\r

-                       if (bmRequestType == (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE))\r
+                       Endpoint_ClearSETUP();\r
+                       \r
+                       /* Wait until the command has been sent by the host */\r
+                       while (!(Endpoint_IsOUTReceived()));\r
+               \r
+                       /* Read in the write destination address */\r
+                       uint16_t PageAddress = Endpoint_Read_Word_LE();\r
+                       \r
+                       /* Check if the command is a program page command, or a start application command */\r
+                       if (PageAddress == TEENSY_STARTAPPLICATION)\r

                        {\r
                        {\r

-                               Endpoint_ClearSETUP();\r
-                               \r
-                               /* Wait until the command (report) has been sent by the host */\r
-                               while (!(Endpoint_IsOUTReceived()));\r
-\r
-                               /* Read in the write destination address */\r
-                               uint16_t PageAddress = Endpoint_Read_Word_LE();\r
+                               RunBootloader = false;\r
+                       }\r
+                       else\r
+                       {\r
+                               /* Erase the given FLASH page, ready to be programmed */\r
+                               boot_page_erase(PageAddress);\r
+                               boot_spm_busy_wait();\r

                                \r
                                \r

-                               /* Check if the command is a program page command, or a start application command */\r
-                               if (PageAddress == TEENSY_STARTAPPLICATION)\r
-                               {\r
-                                       RunBootloader = false;\r
-                               }\r
-                               else\r
+                               /* Write each of the FLASH page's bytes in sequence */\r
+                               for (uint8_t PageByte = 0; PageByte < SPM_PAGESIZE; PageByte += 2)\r

                                {\r
                                {\r

-                                       /* Erase the given FLASH page, ready to be programmed */\r
-                                       boot_page_erase(PageAddress);\r
-                                       boot_spm_busy_wait();\r
-                                       \r
-                                       /* Write each of the FLASH page's bytes in sequence */\r
-                                       for (uint8_t PageByte = 0; PageByte < 128; PageByte += 2)\r
+                                       /* Check if endpoint is empty - if so clear it and wait until ready for next packet */\r
+                                       if (!(Endpoint_BytesInEndpoint()))\r

                                        {\r
                                        {\r

-                                               /* Check if endpoint is empty - if so clear it and wait until ready for next packet */\r
-                                               if (!(Endpoint_BytesInEndpoint()))\r
-                                               {\r
-                                                       Endpoint_ClearOUT();\r
-                                                       while (!(Endpoint_IsOUTReceived()));\r
-                                               }\r
-\r
-                                               /* Write the next data word to the FLASH page */\r
-                                               boot_page_fill(PageAddress + PageByte, Endpoint_Read_Word_LE());\r
+                                               Endpoint_ClearOUT();\r
+                                               while (!(Endpoint_IsOUTReceived()));\r

                                        }\r
 \r
                                        }\r
 \r

-                                       /* Write the filled FLASH page to memory */\r
-                                       boot_page_write(PageAddress);\r
-                                       boot_spm_busy_wait();\r
-\r
-                                       /* Re-enable RWW section */\r
-                                       boot_rww_enable();\r
+                                       /* Write the next data word to the FLASH page */\r
+                                       boot_page_fill(PageAddress + PageByte, Endpoint_Read_Word_LE());\r

                                }\r
 \r
                                }\r
 \r

-                               Endpoint_ClearOUT();\r
+                               /* Write the filled FLASH page to memory */\r
+                               boot_page_write(PageAddress);\r
+                               boot_spm_busy_wait();\r

 \r
 \r

-                               /* Acknowledge status stage */\r
-                               while (!(Endpoint_IsINReady()));\r
-                               Endpoint_ClearIN();\r
+                               /* Re-enable RWW section */\r
+                               boot_rww_enable();\r

                        }\r
                        }\r

+\r
+                       Endpoint_ClearOUT();\r
+\r
+                       Endpoint_ClearStatusStage();\r

                        \r
                        break;\r
        }\r
                        \r
                        break;\r
        }\r