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                 .ReportBufferSize        = 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
  78 void EVENT_USB_Connect(void)
  79 {
  80     LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
  81 }
  82
  83 void EVENT_USB_Disconnect(void)
  84 {
  85     LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
  86 }
  87
  88 void EVENT_USB_ConfigurationChanged(void)
  89 {
  90     LEDs_SetAllLEDs(LEDMASK_USB_READY);
  91
  92     if (!(USB_HID_ConfigureEndpoints(&Keyboard_HID_Interface)))
  93       LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
  94 }
  95
  96 void EVENT_USB_UnhandledControlPacket(void)
  97 {
  98     USB_HID_ProcessControlPacket(&Keyboard_HID_Interface);
  99 }
 100
 101 void EVENT_USB_StartOfFrame(void)
 102 {
 103     USB_HID_RegisterStartOfFrame(&Keyboard_HID_Interface);
 104 }
 105
 106 uint16_t CALLBACK_USB_HID_CreateNextHIDReport(USB_ClassInfo_HID_t* HIDInterfaceInfo, void* ReportData)
 107 {
 108     USB_KeyboardReport_Data_t* KeyboardReport = (USB_KeyboardReport_Data_t*)ReportData;
 109
 110     uint8_t JoyStatus_LCL    = Joystick_GetStatus();
 111     uint8_t ButtonStatus_LCL = Buttons_GetStatus();
 112
 113     if (JoyStatus_LCL & JOY_UP)
 114       KeyboardReport->KeyCode[0] = 0x04; // A
 115     else if (JoyStatus_LCL & JOY_DOWN)
 116       KeyboardReport->KeyCode[0] = 0x05; // B
 117
 118     if (JoyStatus_LCL & JOY_LEFT)
 119       KeyboardReport->KeyCode[0] = 0x06; // C
 120     else if (JoyStatus_LCL & JOY_RIGHT)
 121       KeyboardReport->KeyCode[0] = 0x07; // D
 122
 123     if (JoyStatus_LCL & JOY_PRESS)
 124       KeyboardReport->KeyCode[0] = 0x08; // E
 125
 126     if (ButtonStatus_LCL & BUTTONS_BUTTON1)
 127       KeyboardReport->KeyCode[0] = 0x09; // F
 128
 129     return sizeof(USB_KeyboardReport_Data_t);
 130 }
 131
 132 void CALLBACK_USB_HID_ProcessReceivedHIDReport(USB_ClassInfo_HID_t* HIDInterfaceInfo, void* ReportData, uint16_t ReportSize)
 133 {
 134     uint8_t  LEDMask   = LEDS_NO_LEDS;
 135     uint8_t* LEDReport = (uint8_t*)ReportData;
 136
 137     if (*LEDReport & 0x01) // NUM Lock
 138       LEDMask |= LEDS_LED1;
 139
 140     if (*LEDReport & 0x02) // CAPS Lock
 141       LEDMask |= LEDS_LED3;
 142
 143     if (*LEDReport & 0x04) // SCROLL Lock
 144       LEDMask |= LEDS_LED4;
 145
 146     LEDs_SetAllLEDs(LEDMask);
 147 }