protocol/lufa/LUFA-git/Demos/Device/ClassDriver/KeyboardMouseMultiReport/KeyboardMouseMultiReport.c

   1 /*
   2              LUFA Library
   3      Copyright (C) Dean Camera, 2014.
   4
   5   dean [at] fourwalledcubicle [dot] com
   6            www.lufa-lib.org
   7 */
   8
   9 /*
  10   Copyright 2014  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 disclaims 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 KeyboardMouseMultiReport demo. This file contains the main tasks of
  34  *  the demo and is responsible for the initial application hardware configuration.
  35  */
  36
  37 #include "KeyboardMouseMultiReport.h"
  38
  39 /** Buffer to hold the previously generated HID report, for comparison purposes inside the HID class driver. */
  40 static uint8_t PrevHIDReportBuffer[MAX(sizeof(USB_KeyboardReport_Data_t), sizeof(USB_MouseReport_Data_t))];
  41
  42 /** LUFA HID Class driver interface configuration and state information. This structure is
  43  *  passed to all HID Class driver functions, so that multiple instances of the same class
  44  *  within a device can be differentiated from one another.
  45  */
  46 USB_ClassInfo_HID_Device_t Device_HID_Interface =
  47         {
  48                 .Config =
  49                         {
  50                                 .InterfaceNumber              = INTERFACE_ID_KeyboardAndMouse,
  51                                 .ReportINEndpoint             =
  52                                         {
  53                                                 .Address              = HID_IN_EPADDR,
  54                                                 .Size                 = HID_EPSIZE,
  55                                                 .Banks                = 1,
  56                                         },
  57                                 .PrevReportINBuffer           = PrevHIDReportBuffer,
  58                                 .PrevReportINBufferSize       = sizeof(PrevHIDReportBuffer),
  59                         },
  60         };
  61
  62
  63 /** Main program entry point. This routine contains the overall program flow, including initial
  64  *  setup of all components and the main program loop.
  65  */
  66 int main(void)
  67 {
  68         SetupHardware();
  69
  70         LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
  71         GlobalInterruptEnable();
  72
  73         for (;;)
  74         {
  75                 HID_Device_USBTask(&Device_HID_Interface);
  76                 USB_USBTask();
  77         }
  78 }
  79
  80 /** Configures the board hardware and chip peripherals for the demo's functionality. */
  81 void SetupHardware()
  82 {
  83 #if (ARCH == ARCH_AVR8)
  84         /* Disable watchdog if enabled by bootloader/fuses */
  85         MCUSR &= ~(1 << WDRF);
  86         wdt_disable();
  87
  88         /* Disable clock division */
  89         clock_prescale_set(clock_div_1);
  90 #elif (ARCH == ARCH_XMEGA)
  91         /* Start the PLL to multiply the 2MHz RC oscillator to 32MHz and switch the CPU core to run from it */
  92         XMEGACLK_StartPLL(CLOCK_SRC_INT_RC2MHZ, 2000000, F_CPU);
  93         XMEGACLK_SetCPUClockSource(CLOCK_SRC_PLL);
  94
  95         /* Start the 32MHz internal RC oscillator and start the DFLL to increase it to 48MHz using the USB SOF as a reference */
  96         XMEGACLK_StartInternalOscillator(CLOCK_SRC_INT_RC32MHZ);
  97         XMEGACLK_StartDFLL(CLOCK_SRC_INT_RC32MHZ, DFLL_REF_INT_USBSOF, F_USB);
  98
  99         PMIC.CTRL = PMIC_LOLVLEN_bm | PMIC_MEDLVLEN_bm | PMIC_HILVLEN_bm;
 100 #endif
 101
 102         /* Hardware Initialization */
 103         Joystick_Init();
 104         LEDs_Init();
 105         USB_Init();
 106 }
 107
 108 /** Event handler for the library USB Connection event. */
 109 void EVENT_USB_Device_Connect(void)
 110 {
 111         LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
 112 }
 113
 114 /** Event handler for the library USB Disconnection event. */
 115 void EVENT_USB_Device_Disconnect(void)
 116 {
 117         LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
 118 }
 119
 120 /** Event handler for the library USB Configuration Changed event. */
 121 void EVENT_USB_Device_ConfigurationChanged(void)
 122 {
 123         bool ConfigSuccess = true;
 124
 125         ConfigSuccess &= HID_Device_ConfigureEndpoints(&Device_HID_Interface);
 126
 127         USB_Device_EnableSOFEvents();
 128
 129         LEDs_SetAllLEDs(ConfigSuccess ? LEDMASK_USB_READY : LEDMASK_USB_ERROR);
 130 }
 131
 132 /** Event handler for the library USB Control Request reception event. */
 133 void EVENT_USB_Device_ControlRequest(void)
 134 {
 135         HID_Device_ProcessControlRequest(&Device_HID_Interface);
 136 }
 137
 138 /** Event handler for the USB device Start Of Frame event. */
 139 void EVENT_USB_Device_StartOfFrame(void)
 140 {
 141         HID_Device_MillisecondElapsed(&Device_HID_Interface);
 142 }
 143
 144 /** HID class driver callback function for the creation of HID reports to the host.
 145  *
 146  *  \param[in]     HIDInterfaceInfo  Pointer to the HID class interface configuration structure being referenced
 147  *  \param[in,out] ReportID    Report ID requested by the host if non-zero, otherwise callback should set to the generated report ID
 148  *  \param[in]     ReportType  Type of the report to create, either HID_REPORT_ITEM_In or HID_REPORT_ITEM_Feature
 149  *  \param[out]    ReportData  Pointer to a buffer where the created report should be stored
 150  *  \param[out]    ReportSize  Number of bytes written in the report (or zero if no report is to be sent)
 151  *
 152  *  \return Boolean \c true to force the sending of the report, \c false to let the library determine if it needs to be sent
 153  */
 154 bool CALLBACK_HID_Device_CreateHIDReport(USB_ClassInfo_HID_Device_t* const HIDInterfaceInfo,
 155                                          uint8_t* const ReportID,
 156                                          const uint8_t ReportType,
 157                                          void* ReportData,
 158                                          uint16_t* const ReportSize)
 159 {
 160         uint8_t JoyStatus_LCL    = Joystick_GetStatus();
 161         uint8_t ButtonStatus_LCL = Buttons_GetStatus();
 162
 163         if (!(ButtonStatus_LCL & BUTTONS_BUTTON1))
 164         {
 165                 USB_KeyboardReport_Data_t* KeyboardReport = (USB_KeyboardReport_Data_t*)ReportData;
 166
 167                 KeyboardReport->Modifier = HID_KEYBOARD_MODIFIER_LEFTSHIFT;
 168
 169                 if (JoyStatus_LCL & JOY_UP)
 170                   KeyboardReport->KeyCode[0] = HID_KEYBOARD_SC_A;
 171                 else if (JoyStatus_LCL & JOY_DOWN)
 172                   KeyboardReport->KeyCode[0] = HID_KEYBOARD_SC_B;
 173
 174                 if (JoyStatus_LCL & JOY_LEFT)
 175                   KeyboardReport->KeyCode[0] = HID_KEYBOARD_SC_C;
 176                 else if (JoyStatus_LCL & JOY_RIGHT)
 177                   KeyboardReport->KeyCode[0] = HID_KEYBOARD_SC_D;
 178
 179                 if (JoyStatus_LCL & JOY_PRESS)
 180                   KeyboardReport->KeyCode[0] = HID_KEYBOARD_SC_E;
 181
 182                 *ReportID   = HID_REPORTID_KeyboardReport;
 183                 *ReportSize = sizeof(USB_KeyboardReport_Data_t);
 184                 return false;
 185         }
 186         else
 187         {
 188                 USB_MouseReport_Data_t* MouseReport = (USB_MouseReport_Data_t*)ReportData;
 189
 190                 if (JoyStatus_LCL & JOY_UP)
 191                   MouseReport->Y = -1;
 192                 else if (JoyStatus_LCL & JOY_DOWN)
 193                   MouseReport->Y =  1;
 194
 195                 if (JoyStatus_LCL & JOY_LEFT)
 196                   MouseReport->X = -1;
 197                 else if (JoyStatus_LCL & JOY_RIGHT)
 198                   MouseReport->X =  1;
 199
 200                 if (JoyStatus_LCL & JOY_PRESS)
 201                   MouseReport->Button |= (1 << 0);
 202
 203                 *ReportID   = HID_REPORTID_MouseReport;
 204                 *ReportSize = sizeof(USB_MouseReport_Data_t);
 205                 return true;
 206         }
 207 }
 208
 209 /** HID class driver callback function for the processing of HID reports from the host.
 210  *
 211  *  \param[in] HIDInterfaceInfo  Pointer to the HID class interface configuration structure being referenced
 212  *  \param[in] ReportID    Report ID of the received report from the host
 213  *  \param[in] ReportType  The type of report that the host has sent, either HID_REPORT_ITEM_Out or HID_REPORT_ITEM_Feature
 214  *  \param[in] ReportData  Pointer to a buffer where the received report has been stored
 215  *  \param[in] ReportSize  Size in bytes of the received HID report
 216  */
 217 void CALLBACK_HID_Device_ProcessHIDReport(USB_ClassInfo_HID_Device_t* const HIDInterfaceInfo,
 218                                           const uint8_t ReportID,
 219                                           const uint8_t ReportType,
 220                                           const void* ReportData,
 221                                           const uint16_t ReportSize)
 222 {
 223         uint8_t  LEDMask   = LEDS_NO_LEDS;
 224         uint8_t* LEDReport = (uint8_t*)ReportData;
 225
 226         if (*LEDReport & HID_KEYBOARD_LED_NUMLOCK)
 227           LEDMask |= LEDS_LED1;
 228
 229         if (*LEDReport & HID_KEYBOARD_LED_CAPSLOCK)
 230           LEDMask |= LEDS_LED3;
 231
 232         if (*LEDReport & HID_KEYBOARD_LED_SCROLLLOCK)
 233           LEDMask |= LEDS_LED4;
 234
 235         LEDs_SetAllLEDs(LEDMask);
 236 }
 237