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  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 RelayBoard program. This file contains the main tasks of
  34  *  the project and is responsible for the initial application hardware configuration.
  35  */
  36
  37 #include "RelayBoard.h"
  38
  39
  40 /** Main program entry point. This routine contains the overall program flow, including initial
  41  *  setup of all components and the main program loop.
  42  */
  43 int main(void)
  44 {
  45         SetupHardware();
  46
  47         for (;;)
  48           USB_USBTask();
  49 }
  50
  51 /** Configures the board hardware and chip peripherals for the project's functionality. */
  52 void SetupHardware(void)
  53 {
  54         /* Disable watchdog if enabled by bootloader/fuses */
  55         MCUSR &= ~(1 << WDRF);
  56         wdt_disable();
  57
  58         /* Disable clock division */
  59         clock_prescale_set(clock_div_1);
  60
  61         /* Hardware Initialization */
  62         USB_Init();
  63
  64         /* Initialize Relays */
  65         DDRC  |= ALL_RELAYS;
  66         PORTC |= ALL_RELAYS;
  67 }
  68
  69
  70 /** Event handler for the library USB Configuration Changed event. */
  71 void EVENT_USB_Device_ConfigurationChanged(void)
  72 {
  73         USB_Device_EnableSOFEvents();
  74 }
  75
  76 /** Event handler for the library USB Unhandled Control Packet event. */
  77 void EVENT_USB_Device_UnhandledControlRequest(void)
  78 {
  79     const uint8_t serial[5] = { 0, 0, 0, 0, 1 };
  80         uint8_t data[2]         = { 0, 0 };
  81
  82     switch (USB_ControlRequest.bRequest)
  83         {
  84                 case 0x09:
  85                         if (USB_ControlRequest.bmRequestType == (REQDIR_HOSTTODEVICE | REQTYPE_CLASS | REQREC_INTERFACE))
  86                         {
  87                                 LEDs_ToggleLEDs(LEDS_LED1);
  88
  89                                 Endpoint_ClearSETUP();
  90
  91                                 Endpoint_Read_Control_Stream_LE(data, sizeof(data));
  92                                 Endpoint_ClearIN();
  93
  94                                 switch (USB_ControlRequest.wValue)
  95                                 {
  96                                         case 0x303:
  97                                                 if (data[1]) PORTC |= RELAY1; else PORTC &= ~RELAY1; break;
  98                                         case 0x306:
  99                                                 if (data[1]) PORTC |= RELAY2; else PORTC &= ~RELAY2; break;
 100                                         case 0x309:
 101                                                 if (data[1]) PORTC |= RELAY3; else PORTC &= ~RELAY3; break;
 102                                         case 0x30c:
 103                                                 if (data[1]) PORTC |= RELAY4; else PORTC &= ~RELAY4; break;
 104                                         default:
 105                                                 break;
 106                                 }
 107                         }
 108
 109                         break;
 110                 case 0x01:
 111                         if (USB_ControlRequest.bmRequestType == (REQDIR_DEVICETOHOST | REQTYPE_CLASS | REQREC_INTERFACE))
 112                         {
 113                                 LEDs_ToggleLEDs(LEDS_LED1);
 114
 115                                 Endpoint_ClearSETUP();
 116
 117                                 switch (USB_ControlRequest.wValue)
 118                                 {
 119                                         case 0x301:
 120                                                 Endpoint_Write_Control_Stream_LE(serial, sizeof(serial));
 121                                                 break;
 122                                         case 0x303:
 123                                                 if (PORTC & RELAY1) data[1]=3; else data[1]=2; break;
 124                                         case 0x306:
 125                                                 if (PORTC & RELAY2) data[1]=3; else data[1]=2; break;
 126                                         case 0x309:
 127                                                 if (PORTC & RELAY3) data[1]=3; else data[1]=2; break;
 128                                         case 0x30c:
 129                                                 if (PORTC & RELAY4) data[1]=3; else data[1]=2; break;
 130                                         default:
 131                                                 break;
 132                                 }
 133
 134                                 if (data[1])
 135                                   Endpoint_Write_Control_Stream_LE(data, sizeof(data));
 136
 137                                 Endpoint_ClearOUT();
 138                         }
 139
 140                         break;
 141         }
 142 }