Projects/RelayBoard/RelayBoard.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 2010  OBinou (obconseil [at] gmail [dot] com)
  11   Copyright 2012  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 /** Event handler for the library USB Control Request reception event. */
  73 void EVENT_USB_Device_ControlRequest(void)
  74 {
  75     const uint8_t SerialNumber[5] = { 0, 0, 0, 0, 1 };
  76         uint8_t ControlData[2]        = { 0, 0 };
  77
  78     switch (USB_ControlRequest.bRequest)
  79         {
  80                 case 0x09:
  81                         if (USB_ControlRequest.bmRequestType == (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE))
  82                         {
  83                                 LEDs_ToggleLEDs(LEDS_LED1);
  84
  85                                 Endpoint_ClearSETUP();
  86
  87                                 Endpoint_Read_Control_Stream_LE(ControlData, sizeof(ControlData));
  88                                 Endpoint_ClearIN();
  89
  90                                 switch (USB_ControlRequest.wValue)
  91                                 {
  92                                         case 0x303:
  93                                                 if (ControlData[1]) PORTC &= ~RELAY1; else PORTC |= RELAY1;
  94                                                 break;
  95                                         case 0x306:
  96                                                 if (ControlData[1]) PORTC &= ~RELAY2; else PORTC |= RELAY2;
  97                                                 break;
  98                                         case 0x309:
  99                                                 if (ControlData[1]) PORTC &= ~RELAY3; else PORTC |= RELAY3;
 100                                                 break;
 101                                         case 0x30c:
 102                                                 if (ControlData[1]) PORTC &= ~RELAY4; else PORTC |= RELAY4;
 103                                                 break;
 104                                 }
 105                         }
 106
 107                         break;
 108                 case 0x01:
 109                         if (USB_ControlRequest.bmRequestType == (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE))
 110                         {
 111                                 LEDs_ToggleLEDs(LEDS_LED1);
 112
 113                                 Endpoint_ClearSETUP();
 114
 115                                 switch (USB_ControlRequest.wValue)
 116                                 {
 117                                         case 0x301:
 118                                                 Endpoint_Write_Control_Stream_LE(SerialNumber, sizeof(SerialNumber));
 119                                                 break;
 120                                         case 0x303:
 121                                                 ControlData[1] = (PORTC & RELAY1) ? 2 : 3;
 122                                                 break;
 123                                         case 0x306:
 124                                                 ControlData[1] = (PORTC & RELAY2) ? 2 : 3;
 125                                                 break;
 126                                         case 0x309:
 127                                                 ControlData[1] = (PORTC & RELAY3) ? 2 : 3;
 128                                                 break;
 129                                         case 0x30c:
 130                                                 ControlData[1] = (PORTC & RELAY4) ? 2 : 3;
 131                                                 break;
 132                                 }
 133
 134                                 if (ControlData[1])
 135                                   Endpoint_Write_Control_Stream_LE(ControlData, sizeof(ControlData));
 136
 137                                 Endpoint_ClearOUT();
 138                         }
 139
 140                         break;
 141         }
 142 }
 143