Demos/Device/Keyboard/Keyboard.c

   1 /*
   2              LUFA Library
   3      Copyright (C) Dean Camera, 2009.
   4
   5   dean [at] fourwalledcubicle [dot] com
   6       www.fourwalledcubicle.com
   7 */
   8
   9 /*
  10   Copyright 2009  Denver Gingerich (denver [at] ossguy [dot] com)
  11       Based on code by Dean Camera (dean [at] fourwalledcubicle [dot] com)
  12
  13   Permission to use, copy, modify, and distribute this software
  14   and its documentation for any purpose and without fee is hereby
  15   granted, provided that the above copyright notice appear in all
  16   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 #include "Keyboard.h"
  33
  34 USB_ClassInfo_HID_t Keyboard_HID_Interface =
  35     {
  36         .InterfaceNumber         = 0,
  37
  38         .ReportINEndpointNumber  = KEYBOARD_EPNUM,
  39         .ReportINEndpointSize    = KEYBOARD_EPSIZE,
  40
  41         .ReportOUTEndpointNumber = KEYBOARD_LEDS_EPNUM,
  42         .ReportOUTEndpointSize   = KEYBOARD_EPSIZE,
  43
  44                 .ReportINBufferSize      = sizeof(USB_KeyboardReport_Data_t),
  45
  46         .IdleCount               = 500,
  47     };
  48
  49 int main(void)
  50 {
  51     SetupHardware();
  52
  53     LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
  54
  55     for (;;)
  56     {
  57         USB_HID_USBTask(&Keyboard_HID_Interface);
  58         USB_USBTask();
  59     }
  60 }
  61
  62 void SetupHardware()
  63 {
  64     /* Disable watchdog if enabled by bootloader/fuses */
  65     MCUSR &= ~(1 << WDRF);
  66     wdt_disable();
  67
  68     /* Disable clock division */
  69     clock_prescale_set(clock_div_1);
  70
  71     /* Hardware Initialization */
  72     Joystick_Init();
  73     LEDs_Init();
  74     Buttons_Init();
  75     USB_Init();
  76
  77         /* Millisecond timer initialization, with output compare interrupt enabled for the idle timing */
  78         OCR0A  = ((F_CPU / 64) / 1000);
  79         TCCR0A = (1 << WGM01);
  80         TCCR0B = ((1 << CS01) | (1 << CS00));
  81         TIMSK0 = (1 << OCIE0A);
  82 }
  83
  84 void EVENT_USB_Connect(void)
  85 {
  86     LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
  87 }
  88
  89 void EVENT_USB_Disconnect(void)
  90 {
  91     LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
  92 }
  93
  94 void EVENT_USB_ConfigurationChanged(void)
  95 {
  96     LEDs_SetAllLEDs(LEDMASK_USB_READY);
  97
  98     if (!(USB_HID_ConfigureEndpoints(&Keyboard_HID_Interface)))
  99       LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 100 }
 101
 102 void EVENT_USB_UnhandledControlPacket(void)
 103 {
 104     USB_HID_ProcessControlPacket(&Keyboard_HID_Interface);
 105 }
 106
 107 ISR(TIMER0_COMPA_vect, ISR_BLOCK)
 108 {
 109         if (Keyboard_HID_Interface.IdleMSRemaining)
 110           Keyboard_HID_Interface.IdleMSRemaining--;
 111 }
 112
 113 uint16_t CALLBACK_USB_HID_CreateNextHIDReport(USB_ClassInfo_HID_t* HIDInterfaceInfo, void* ReportData)
 114 {
 115     USB_KeyboardReport_Data_t* KeyboardReport = (USB_KeyboardReport_Data_t*)ReportData;
 116
 117     uint8_t JoyStatus_LCL    = Joystick_GetStatus();
 118     uint8_t ButtonStatus_LCL = Buttons_GetStatus();
 119
 120     if (JoyStatus_LCL & JOY_UP)
 121       KeyboardReport->KeyCode[0] = 0x04; // A
 122     else if (JoyStatus_LCL & JOY_DOWN)
 123       KeyboardReport->KeyCode[0] = 0x05; // B
 124
 125     if (JoyStatus_LCL & JOY_LEFT)
 126       KeyboardReport->KeyCode[0] = 0x06; // C
 127     else if (JoyStatus_LCL & JOY_RIGHT)
 128       KeyboardReport->KeyCode[0] = 0x07; // D
 129
 130     if (JoyStatus_LCL & JOY_PRESS)
 131       KeyboardReport->KeyCode[0] = 0x08; // E
 132
 133     if (ButtonStatus_LCL & BUTTONS_BUTTON1)
 134       KeyboardReport->KeyCode[0] = 0x09; // F
 135
 136     return sizeof(USB_KeyboardReport_Data_t);
 137 }
 138
 139 void CALLBACK_USB_HID_ProcessReceivedHIDReport(USB_ClassInfo_HID_t* HIDInterfaceInfo, void* ReportData, uint16_t ReportSize)
 140 {
 141     uint8_t  LEDMask   = LEDS_NO_LEDS;
 142     uint8_t* LEDReport = (uint8_t*)ReportData;
 143
 144     if (*LEDReport & 0x01) // NUM Lock
 145       LEDMask |= LEDS_LED1;
 146
 147     if (*LEDReport & 0x02) // CAPS Lock
 148       LEDMask |= LEDS_LED3;
 149
 150     if (*LEDReport & 0x04) // SCROLL Lock
 151       LEDMask |= LEDS_LED4;
 152
 153     LEDs_SetAllLEDs(LEDMask);
 154 }