Projects/AVRISP-MKII/AVRISP-MKII.c

   1 /*
   2              LUFA Library
   3      Copyright (C) Dean Camera, 2012.
   4
   5   dean [at] fourwalledcubicle [dot] com
   6            www.lufa-lib.org
   7 */
   8
   9 /*
  10   Copyright 2012  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-MKII.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         V2Protocol_Init();
  46
  47         LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
  48         sei();
  49
  50         for (;;)
  51         {
  52                 #if (BOARD == BOARD_USBTINYMKII)
  53                 /* On the USBTINY-MKII target, there is a secondary LED which indicates the current selected power
  54                    mode - either VBUS, or sourced from the VTARGET pin of the programming connectors */
  55                 LEDs_ChangeLEDs(LEDMASK_VBUSPOWER, (PIND & (1 << 0)) ? 0 : LEDMASK_VBUSPOWER);
  56                 #endif
  57
  58                 AVRISP_Task();
  59                 USB_USBTask();
  60         }
  61 }
  62
  63 /** Configures the board hardware and chip peripherals for the demo's functionality. */
  64 void SetupHardware(void)
  65 {
  66         /* Disable watchdog if enabled by bootloader/fuses */
  67         MCUSR &= ~(1 << WDRF);
  68         wdt_disable();
  69
  70         /* Disable clock division */
  71         clock_prescale_set(clock_div_1);
  72
  73         /* Hardware Initialization */
  74         LEDs_Init();
  75         #if defined(RESET_TOGGLES_LIBUSB_COMPAT)
  76         UpdateCurrentCompatibilityMode();
  77         #endif
  78
  79         /* USB Stack Initialization */
  80         USB_Init();
  81 }
  82
  83 /** Event handler for the library USB Connection event. */
  84 void EVENT_USB_Device_Connect(void)
  85 {
  86         LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
  87 }
  88
  89 /** Event handler for the library USB Disconnection event. */
  90 void EVENT_USB_Device_Disconnect(void)
  91 {
  92         LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
  93 }
  94
  95 /** Event handler for the library USB Configuration Changed event. */
  96 void EVENT_USB_Device_ConfigurationChanged(void)
  97 {
  98         bool ConfigSuccess = true;
  99
 100         /* Setup AVRISP Data Endpoint(s) */
 101         ConfigSuccess &= Endpoint_ConfigureEndpoint(AVRISP_DATA_OUT_EPADDR, EP_TYPE_BULK, AVRISP_DATA_EPSIZE, 1);
 102
 103         #if defined(LIBUSB_DRIVER_COMPAT)
 104         ConfigSuccess &= Endpoint_ConfigureEndpoint(AVRISP_DATA_IN_EPADDR, EP_TYPE_BULK, AVRISP_DATA_EPSIZE, 1);
 105         #endif
 106
 107         /* Indicate endpoint configuration success or failure */
 108         LEDs_SetAllLEDs(ConfigSuccess ? LEDMASK_USB_READY : LEDMASK_USB_ERROR);
 109 }
 110
 111 /** Processes incoming V2 Protocol commands from the host, returning a response when required. */
 112 void AVRISP_Task(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         V2Params_UpdateParamValues();
 119
 120         Endpoint_SelectEndpoint(AVRISP_DATA_OUT_EPADDR);
 121
 122         /* Check to see if a V2 Protocol command has been received */
 123         if (Endpoint_IsOUTReceived())
 124         {
 125                 LEDs_SetAllLEDs(LEDMASK_BUSY);
 126
 127                 /* Pass off processing of the V2 Protocol command to the V2 Protocol handler */
 128                 V2Protocol_ProcessCommand();
 129
 130                 LEDs_SetAllLEDs(LEDMASK_USB_READY);
 131         }
 132 }
 133