protocol/lufa/LUFA-git/Demos/Device/ClassDriver/MassStorageKeyboard/MassStorageKeyboard.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   Copyright 2010  Matthias Hullin (lufa [at] matthias [dot] hullin [dot] net)
  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 disclaims 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 MassStorageKeyboard demo. This file contains the main tasks of
  35  *  the demo and is responsible for the initial application hardware configuration.
  36  */
  37
  38 #include "MassStorageKeyboard.h"
  39
  40 /** LUFA Mass Storage Class driver interface configuration and state information. This structure is
  41  *  passed to all Mass Storage Class driver functions, so that multiple instances of the same class
  42  *  within a device can be differentiated from one another.
  43  */
  44 USB_ClassInfo_MS_Device_t Disk_MS_Interface =
  45         {
  46                 .Config =
  47                         {
  48                                 .InterfaceNumber           = INTERFACE_ID_MassStorage,
  49                                 .DataINEndpoint            =
  50                                         {
  51                                                 .Address           = MASS_STORAGE_IN_EPADDR,
  52                                                 .Size              = MASS_STORAGE_IO_EPSIZE,
  53                                                 .Banks             = 1,
  54                                         },
  55                                 .DataOUTEndpoint            =
  56                                         {
  57                                                 .Address           = MASS_STORAGE_OUT_EPADDR,
  58                                                 .Size              = MASS_STORAGE_IO_EPSIZE,
  59                                                 .Banks             = 1,
  60                                         },
  61                                 .TotalLUNs                 = TOTAL_LUNS,
  62                         },
  63         };
  64
  65 /** Buffer to hold the previously generated Keyboard HID report, for comparison purposes inside the HID class driver. */
  66 static uint8_t PrevKeyboardHIDReportBuffer[sizeof(USB_KeyboardReport_Data_t)];
  67
  68 /** LUFA HID Class driver interface configuration and state information. This structure is
  69  *  passed to all HID Class driver functions, so that multiple instances of the same class
  70  *  within a device can be differentiated from one another.
  71  */
  72 USB_ClassInfo_HID_Device_t Keyboard_HID_Interface =
  73         {
  74                 .Config =
  75                         {
  76                                 .InterfaceNumber              = INTERFACE_ID_Keyboard,
  77                                 .ReportINEndpoint             =
  78                                         {
  79                                                 .Address              = KEYBOARD_EPADDR,
  80                                                 .Size                 = KEYBOARD_EPSIZE,
  81                                                 .Banks                = 1,
  82                                         },
  83                                 .PrevReportINBuffer           = PrevKeyboardHIDReportBuffer,
  84                                 .PrevReportINBufferSize       = sizeof(PrevKeyboardHIDReportBuffer),
  85                         },
  86     };
  87
  88 /** Main program entry point. This routine contains the overall program flow, including initial
  89  *  setup of all components and the main program loop.
  90  */
  91 int main(void)
  92 {
  93         SetupHardware();
  94
  95         LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
  96         GlobalInterruptEnable();
  97
  98         for (;;)
  99         {
 100                 MS_Device_USBTask(&Disk_MS_Interface);
 101                 HID_Device_USBTask(&Keyboard_HID_Interface);
 102                 USB_USBTask();
 103         }
 104 }
 105
 106 /** Configures the board hardware and chip peripherals for the demo's functionality. */
 107 void SetupHardware(void)
 108 {
 109 #if (ARCH == ARCH_AVR8)
 110         /* Disable watchdog if enabled by bootloader/fuses */
 111         MCUSR &= ~(1 << WDRF);
 112         wdt_disable();
 113
 114         /* Disable clock division */
 115         clock_prescale_set(clock_div_1);
 116 #elif (ARCH == ARCH_XMEGA)
 117         /* Start the PLL to multiply the 2MHz RC oscillator to 32MHz and switch the CPU core to run from it */
 118         XMEGACLK_StartPLL(CLOCK_SRC_INT_RC2MHZ, 2000000, F_CPU);
 119         XMEGACLK_SetCPUClockSource(CLOCK_SRC_PLL);
 120
 121         /* Start the 32MHz internal RC oscillator and start the DFLL to increase it to 48MHz using the USB SOF as a reference */
 122         XMEGACLK_StartInternalOscillator(CLOCK_SRC_INT_RC32MHZ);
 123         XMEGACLK_StartDFLL(CLOCK_SRC_INT_RC32MHZ, DFLL_REF_INT_USBSOF, F_USB);
 124
 125         PMIC.CTRL = PMIC_LOLVLEN_bm | PMIC_MEDLVLEN_bm | PMIC_HILVLEN_bm;
 126 #endif
 127
 128         /* Hardware Initialization */
 129         LEDs_Init();
 130         Joystick_Init();
 131         Buttons_Init();
 132         Dataflash_Init();
 133         USB_Init();
 134
 135         /* Check if the Dataflash is working, abort if not */
 136         if (!(DataflashManager_CheckDataflashOperation()))
 137         {
 138                 LEDs_SetAllLEDs(LEDMASK_USB_ERROR);
 139                 for(;;);
 140         }
 141
 142         /* Clear Dataflash sector protections, if enabled */
 143         DataflashManager_ResetDataflashProtections();
 144 }
 145
 146 /** Event handler for the library USB Connection event. */
 147 void EVENT_USB_Device_Connect(void)
 148 {
 149         LEDs_SetAllLEDs(LEDMASK_USB_ENUMERATING);
 150 }
 151
 152 /** Event handler for the library USB Disconnection event. */
 153 void EVENT_USB_Device_Disconnect(void)
 154 {
 155         LEDs_SetAllLEDs(LEDMASK_USB_NOTREADY);
 156 }
 157
 158 /** Event handler for the library USB Configuration Changed event. */
 159 void EVENT_USB_Device_ConfigurationChanged(void)
 160 {
 161         bool ConfigSuccess = true;
 162
 163         ConfigSuccess &= HID_Device_ConfigureEndpoints(&Keyboard_HID_Interface);
 164         ConfigSuccess &= MS_Device_ConfigureEndpoints(&Disk_MS_Interface);
 165
 166         USB_Device_EnableSOFEvents();
 167
 168         LEDs_SetAllLEDs(ConfigSuccess ? LEDMASK_USB_READY : LEDMASK_USB_ERROR);
 169 }
 170
 171 /** Event handler for the library USB Control Request reception event. */
 172 void EVENT_USB_Device_ControlRequest(void)
 173 {
 174         MS_Device_ProcessControlRequest(&Disk_MS_Interface);
 175         HID_Device_ProcessControlRequest(&Keyboard_HID_Interface);
 176 }
 177
 178 /** Mass Storage class driver callback function the reception of SCSI commands from the host, which must be processed.
 179  *
 180  *  \param[in] MSInterfaceInfo  Pointer to the Mass Storage class interface configuration structure being referenced
 181  */
 182 bool CALLBACK_MS_Device_SCSICommandReceived(USB_ClassInfo_MS_Device_t* const MSInterfaceInfo)
 183 {
 184         bool CommandSuccess;
 185
 186         LEDs_SetAllLEDs(LEDMASK_USB_BUSY);
 187         CommandSuccess = SCSI_DecodeSCSICommand(MSInterfaceInfo);
 188         LEDs_SetAllLEDs(LEDMASK_USB_READY);
 189
 190         return CommandSuccess;
 191 }
 192
 193 /** Event handler for the USB device Start Of Frame event. */
 194 void EVENT_USB_Device_StartOfFrame(void)
 195 {
 196     HID_Device_MillisecondElapsed(&Keyboard_HID_Interface);
 197 }
 198
 199 /** HID class driver callback function for the creation of HID reports to the host.
 200  *
 201  *  \param[in]     HIDInterfaceInfo  Pointer to the HID class interface configuration structure being referenced
 202  *  \param[in,out] ReportID    Report ID requested by the host if non-zero, otherwise callback should set to the generated report ID
 203  *  \param[in]     ReportType  Type of the report to create, either HID_REPORT_ITEM_In or HID_REPORT_ITEM_Feature
 204  *  \param[out]    ReportData  Pointer to a buffer where the created report should be stored
 205  *  \param[out]    ReportSize  Number of bytes written in the report (or zero if no report is to be sent)
 206  *
 207  *  \return Boolean \c true to force the sending of the report, \c false to let the library determine if it needs to be sent
 208  */
 209 bool CALLBACK_HID_Device_CreateHIDReport(USB_ClassInfo_HID_Device_t* const HIDInterfaceInfo,
 210                                          uint8_t* const ReportID,
 211                                          const uint8_t ReportType,
 212                                          void* ReportData,
 213                                          uint16_t* const ReportSize)
 214 {
 215         USB_KeyboardReport_Data_t* KeyboardReport = (USB_KeyboardReport_Data_t*)ReportData;
 216
 217         uint8_t JoyStatus_LCL    = Joystick_GetStatus();
 218         uint8_t ButtonStatus_LCL = Buttons_GetStatus();
 219
 220         KeyboardReport->Modifier = HID_KEYBOARD_MODIFIER_LEFTSHIFT;
 221
 222         if (JoyStatus_LCL & JOY_UP)
 223           KeyboardReport->KeyCode[0] = HID_KEYBOARD_SC_A;
 224         else if (JoyStatus_LCL & JOY_DOWN)
 225           KeyboardReport->KeyCode[0] = HID_KEYBOARD_SC_B;
 226
 227         if (JoyStatus_LCL & JOY_LEFT)
 228           KeyboardReport->KeyCode[0] = HID_KEYBOARD_SC_C;
 229         else if (JoyStatus_LCL & JOY_RIGHT)
 230           KeyboardReport->KeyCode[0] = HID_KEYBOARD_SC_D;
 231
 232         if (JoyStatus_LCL & JOY_PRESS)
 233           KeyboardReport->KeyCode[0] = HID_KEYBOARD_SC_E;
 234
 235         if (ButtonStatus_LCL & BUTTONS_BUTTON1)
 236           KeyboardReport->KeyCode[0] = HID_KEYBOARD_SC_F;
 237
 238         *ReportSize = sizeof(USB_KeyboardReport_Data_t);
 239         return false;
 240 }
 241
 242 /** HID class driver callback function for the processing of HID reports from the host.
 243  *
 244  *  \param[in] HIDInterfaceInfo  Pointer to the HID class interface configuration structure being referenced
 245  *  \param[in] ReportID    Report ID of the received report from the host
 246  *  \param[in] ReportType  The type of report that the host has sent, either HID_REPORT_ITEM_Out or HID_REPORT_ITEM_Feature
 247  *  \param[in] ReportData  Pointer to a buffer where the received report has been stored
 248  *  \param[in] ReportSize  Size in bytes of the received HID report
 249  */
 250 void CALLBACK_HID_Device_ProcessHIDReport(USB_ClassInfo_HID_Device_t* const HIDInterfaceInfo,
 251                                           const uint8_t ReportID,
 252                                           const uint8_t ReportType,
 253                                           const void* ReportData,
 254                                           const uint16_t ReportSize)
 255 {
 256         uint8_t  LEDMask   = LEDS_NO_LEDS;
 257         uint8_t* LEDReport = (uint8_t*)ReportData;
 258
 259         if (*LEDReport & HID_KEYBOARD_LED_NUMLOCK)
 260           LEDMask |= LEDS_LED1;
 261
 262         if (*LEDReport & HID_KEYBOARD_LED_CAPSLOCK)
 263           LEDMask |= LEDS_LED3;
 264
 265         if (*LEDReport & HID_KEYBOARD_LED_SCROLLLOCK)
 266           LEDMask |= LEDS_LED4;
 267
 268         LEDs_SetAllLEDs(LEDMask);
 269 }
 270