Projects/AVRISP-MKII/AVRISP.c

   1 /*
   2              LUFA Library
   3      Copyright (C) Dean Camera, 2010.
   4
   5   dean [at] fourwalledcubicle [dot] com
   6       www.fourwalledcubicle.com
   7 */
   8
   9 /*
  10   Copyright 2010  Dean Camera (dean [at] fourwalledcubicle [dot] com)
  11
  12   Permission to use, copy, modify, distribute, and sell this
  13   software and its documentation for any purpose is hereby granted
  14   without fee, provided that the above copyright notice appear in
  15   all copies and that both that the copyright notice and this
  16   permission notice and warranty disclaimer appear in supporting
  17   documentation, and that the name of the author not be used in
  18   advertising or publicity pertaining to distribution of the
  19   software without specific, written prior permission.
  20
  21   The author disclaim all warranties with regard to this
  22   software, including all implied warranties of merchantability
  23   and fitness.  In no event shall the author be liable for any
  24   special, indirect or consequential damages or any damages
  25   whatsoever resulting from loss of use, data or profits, whether
  26   in an action of contract, negligence or other tortious action,
  27   arising out of or in connection with the use or performance of
  28   this software.
  29 */
  30
  31 /** \file
  32  *
  33  *  Main source file for the AVRISP project. This file contains the main tasks of
  34  *  the project and is responsible for the initial application hardware configuration.
  35  */
  36
  37 #include "AVRISP.h"
  38
  39 /** Main program entry point. This routine contains the overall program flow, including initial
  40  *  setup of all components and the main program loop.
  41  */
  42 int main(void)
  43 {
  44         SetupHardware();
  45
  46         LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
  47         sei();
  48
  49         for (;;)
  50         {
  51                 Process_AVRISP_Commands();
  52
  53                 V2Params_UpdateParamValues();
  54
  55                 USB_USBTask();
  56         }
  57 }
  58
  59 /** Configures the board hardware and chip peripherals for the demo's functionality. */
  60 void SetupHardware(void)
  61 {
  62         /* Disable watchdog if enabled by bootloader/fuses */
  63         MCUSR &= ~(1 << WDRF);
  64         wdt_disable();
  65
  66         /* Disable clock division */
  67         clock_prescale_set(clock_div_1);
  68
  69         /* Hardware Initialization */
  70         LEDs_Init();
  71         USB_Init();
  72         V2Protocol_Init();
  73 }
  74
  75 /** Event handler for the library USB Connection event. */
  76 void EVENT_USB_Device_Connect(void)
  77 {
  78         LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
  79 }
  80
  81 /** Event handler for the library USB Disconnection event. */
  82 void EVENT_USB_Device_Disconnect(void)
  83 {
  84         LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
  85 }
  86
  87 /** Event handler for the library USB Configuration Changed event. */
  88 void EVENT_USB_Device_ConfigurationChanged(void)
  89 {
  90         /* Indicate USB connected and ready */
  91         LEDs_SetAllLEDs(LEDMASK_USB_READY);
  92
  93         /* Setup AVRISP data Endpoints */
  94         if (!(Endpoint_ConfigureEndpoint(AVRISP_DATA_OUT_EPNUM, EP_TYPE_BULK,
  95                                              ENDPOINT_DIR_OUT, AVRISP_DATA_EPSIZE,
  96                                          ENDPOINT_BANK_SINGLE)))
  97         {
  98                 LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
  99         }
 100
 101         #if defined(LIBUSB_FILTERDRV_COMPAT)
 102         if (!(Endpoint_ConfigureEndpoint(AVRISP_DATA_IN_EPNUM, EP_TYPE_BULK,
 103                                              ENDPOINT_DIR_IN, AVRISP_DATA_EPSIZE,
 104                                          ENDPOINT_BANK_SINGLE)))
 105         {
 106                 LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 107         }
 108         #endif
 109 }
 110
 111 /** Processes incoming V2 Protocol commands from the host, returning a response when required. */
 112 void Process_AVRISP_Commands(void)
 113 {
 114         /* Device must be connected and configured for the task to run */
 115         if (USB_DeviceState != DEVICE_STATE_Configured)
 116           return;
 117
 118         Endpoint_SelectEndpoint(AVRISP_DATA_OUT_EPNUM);
 119
 120         /* Check to see if a V2 Protocol command has been received */
 121         if (Endpoint_IsOUTReceived())
 122         {
 123                 LEDs_SetAllLEDs(LEDMASK_BUSY);
 124
 125                 /* Pass off processing of the V2 Protocol command to the V2 Protocol handler */
 126                 V2Protocol_ProcessCommand();
 127
 128                 LEDs_SetAllLEDs(LEDMASK_USB_READY);
 129         }
 130 }
 131