Projects/RelayBoard/RelayBoard.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  OBinou (obconseil [at] gmail [dot] com)
  11   Copyright 2010  Dean Camera (dean [at] fourwalledcubicle [dot] com)
  12
  13   Permission to use, copy, modify, distribute, and sell this
  14   software and its documentation for any purpose is hereby granted
  15   without fee, provided that the above copyright notice appear in
  16   all copies and that both that the copyright notice and this
  17   permission notice and warranty disclaimer appear in supporting
  18   documentation, and that the name of the author not be used in
  19   advertising or publicity pertaining to distribution of the
  20   software without specific, written prior permission.
  21
  22   The author disclaim all warranties with regard to this
  23   software, including all implied warranties of merchantability
  24   and fitness.  In no event shall the author be liable for any
  25   special, indirect or consequential damages or any damages
  26   whatsoever resulting from loss of use, data or profits, whether
  27   in an action of contract, negligence or other tortious action,
  28   arising out of or in connection with the use or performance of
  29   this software.
  30 */
  31
  32 /** \file
  33  *
  34  *  Main source file for the RelayBoard program. This file contains the main tasks of
  35  *  the project and is responsible for the initial application hardware configuration.
  36  */
  37
  38 #include "RelayBoard.h"
  39
  40
  41 /** Main program entry point. This routine contains the overall program flow, including initial
  42  *  setup of all components and the main program loop.
  43  */
  44 int main(void)
  45 {
  46         SetupHardware();
  47
  48         sei();
  49
  50         for (;;)
  51           USB_USBTask();
  52 }
  53
  54 /** Configures the board hardware and chip peripherals for the project's functionality. */
  55 void SetupHardware(void)
  56 {
  57         /* Disable watchdog if enabled by bootloader/fuses */
  58         MCUSR &= ~(1 << WDRF);
  59         wdt_disable();
  60
  61         /* Disable clock division */
  62         clock_prescale_set(clock_div_1);
  63
  64         /* Hardware Initialization */
  65         USB_Init();
  66
  67         /* Initialize Relays */
  68         DDRC  |=  ALL_RELAYS;
  69         PORTC &= ~ALL_RELAYS;
  70 }
  71
  72
  73 /** Event handler for the library USB Configuration Changed event. */
  74 void EVENT_USB_Device_ConfigurationChanged(void)
  75 {
  76         USB_Device_EnableSOFEvents();
  77 }
  78
  79 /** Event handler for the library USB Unhandled Control Packet event. */
  80 void EVENT_USB_Device_UnhandledControlRequest(void)
  81 {
  82     const uint8_t SerialNumber[5] = { 0, 0, 0, 0, 1 };
  83         uint8_t ControlData[2]        = { 0, 0 };
  84
  85     switch (USB_ControlRequest.bRequest)
  86         {
  87                 case 0x09:
  88                         if (USB_ControlRequest.bmRequestType == (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE))
  89                         {
  90                                 LEDs_ToggleLEDs(LEDS_LED1);
  91
  92                                 Endpoint_ClearSETUP();
  93
  94                                 Endpoint_Read_Control_Stream_LE(ControlData, sizeof(ControlData));
  95                                 Endpoint_ClearIN();
  96
  97                                 switch (USB_ControlRequest.wValue)
  98                                 {
  99                                         case 0x303:
 100                                                 if (ControlData[1]) PORTC &= ~RELAY1; else PORTC |= RELAY1;
 101                                                 break;
 102                                         case 0x306:
 103                                                 if (ControlData[1]) PORTC &= ~RELAY2; else PORTC |= RELAY2;
 104                                                 break;
 105                                         case 0x309:
 106                                                 if (ControlData[1]) PORTC &= ~RELAY3; else PORTC |= RELAY3;
 107                                                 break;
 108                                         case 0x30c:
 109                                                 if (ControlData[1]) PORTC &= ~RELAY4; else PORTC |= RELAY4;
 110                                                 break;
 111                                 }
 112                         }
 113
 114                         break;
 115                 case 0x01:
 116                         if (USB_ControlRequest.bmRequestType == (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE))
 117                         {
 118                                 LEDs_ToggleLEDs(LEDS_LED1);
 119
 120                                 Endpoint_ClearSETUP();
 121
 122                                 switch (USB_ControlRequest.wValue)
 123                                 {
 124                                         case 0x301:
 125                                                 Endpoint_Write_Control_Stream_LE(SerialNumber, sizeof(SerialNumber));
 126                                                 break;
 127                                         case 0x303:
 128                                                 ControlData[1] = (PORTC & RELAY1) ? 2 : 3;
 129                                                 break;
 130                                         case 0x306:
 131                                                 ControlData[1] = (PORTC & RELAY2) ? 2 : 3;
 132                                                 break;
 133                                         case 0x309:
 134                                                 ControlData[1] = (PORTC & RELAY3) ? 2 : 3;
 135                                                 break;
 136                                         case 0x30c:
 137                                                 ControlData[1] = (PORTC & RELAY4) ? 2 : 3;
 138                                                 break;
 139                                 }
 140
 141                                 if (ControlData[1])
 142                                   Endpoint_Write_Control_Stream_LE(ControlData, sizeof(ControlData));
 143
 144                                 Endpoint_ClearOUT();
 145                         }
 146
 147                         break;
 148         }
 149 }