protocol/usb_hid/USB_Host_Shield_2.0/examples/Bluetooth/BTHID/KeyboardParser.h

   1 #ifndef __kbdrptparser_h_
   2 #define __kbdrptparser_h_
   3
   4 class KbdRptParser : public KeyboardReportParser {
   5   protected:
   6     virtual uint8_t HandleLockingKeys(HID *hid, uint8_t key);
   7     virtual void OnControlKeysChanged(uint8_t before, uint8_t after);
   8     virtual void OnKeyDown(uint8_t mod, uint8_t key);
   9     virtual void OnKeyUp(uint8_t mod, uint8_t key);
  10     virtual void OnKeyPressed(uint8_t key);
  11
  12   private:
  13     void PrintKey(uint8_t mod, uint8_t key);
  14 };
  15
  16 uint8_t KbdRptParser::HandleLockingKeys(HID *hid, uint8_t key) {
  17   uint8_t old_keys = kbdLockingKeys.bLeds;
  18
  19   switch (key) {
  20     case UHS_HID_BOOT_KEY_NUM_LOCK:
  21       Serial.println(F("Num lock"));
  22       kbdLockingKeys.kbdLeds.bmNumLock = ~kbdLockingKeys.kbdLeds.bmNumLock;
  23       break;
  24     case UHS_HID_BOOT_KEY_CAPS_LOCK:
  25       Serial.println(F("Caps lock"));
  26       kbdLockingKeys.kbdLeds.bmCapsLock = ~kbdLockingKeys.kbdLeds.bmCapsLock;
  27       break;
  28     case UHS_HID_BOOT_KEY_SCROLL_LOCK:
  29       Serial.println(F("Scroll lock"));
  30       kbdLockingKeys.kbdLeds.bmScrollLock = ~kbdLockingKeys.kbdLeds.bmScrollLock;
  31       break;
  32   }
  33
  34   if (old_keys != kbdLockingKeys.bLeds && hid) {
  35     BTHID *pBTHID = reinterpret_cast<BTHID *> (hid); // A cast the other way around is done in BTHID.cpp
  36     pBTHID->setLeds(kbdLockingKeys.bLeds); // Update the LEDs on the keyboard
  37   }
  38
  39   return 0;
  40 };
  41
  42 void KbdRptParser::PrintKey(uint8_t m, uint8_t key) {
  43   MODIFIERKEYS mod;
  44   *((uint8_t*)&mod) = m;
  45   Serial.print((mod.bmLeftCtrl == 1) ? F("C") : F(" "));
  46   Serial.print((mod.bmLeftShift == 1) ? F("S") : F(" "));
  47   Serial.print((mod.bmLeftAlt == 1) ? F("A") : F(" "));
  48   Serial.print((mod.bmLeftGUI == 1) ? F("G") : F(" "));
  49
  50   Serial.print(F(" >"));
  51   PrintHex<uint8_t>(key, 0x80);
  52   Serial.print(F("< "));
  53
  54   Serial.print((mod.bmRightCtrl == 1) ? F("C") : F(" "));
  55   Serial.print((mod.bmRightShift == 1) ? F("S") : F(" "));
  56   Serial.print((mod.bmRightAlt == 1) ? F("A") : F(" "));
  57   Serial.println((mod.bmRightGUI == 1) ? F("G") : F(" "));
  58 };
  59
  60 void KbdRptParser::OnKeyDown(uint8_t mod, uint8_t key) {
  61   Serial.print(F("DN "));
  62   PrintKey(mod, key);
  63   uint8_t c = OemToAscii(mod, key);
  64
  65   if (c)
  66     OnKeyPressed(c);
  67 };
  68
  69 void KbdRptParser::OnControlKeysChanged(uint8_t before, uint8_t after) {
  70   MODIFIERKEYS beforeMod;
  71   *((uint8_t*)&beforeMod) = before;
  72
  73   MODIFIERKEYS afterMod;
  74   *((uint8_t*)&afterMod) = after;
  75
  76   if (beforeMod.bmLeftCtrl != afterMod.bmLeftCtrl)
  77     Serial.println(F("LeftCtrl changed"));
  78   if (beforeMod.bmLeftShift != afterMod.bmLeftShift)
  79     Serial.println(F("LeftShift changed"));
  80   if (beforeMod.bmLeftAlt != afterMod.bmLeftAlt)
  81     Serial.println(F("LeftAlt changed"));
  82   if (beforeMod.bmLeftGUI != afterMod.bmLeftGUI)
  83     Serial.println(F("LeftGUI changed"));
  84
  85   if (beforeMod.bmRightCtrl != afterMod.bmRightCtrl)
  86     Serial.println(F("RightCtrl changed"));
  87   if (beforeMod.bmRightShift != afterMod.bmRightShift)
  88     Serial.println(F("RightShift changed"));
  89   if (beforeMod.bmRightAlt != afterMod.bmRightAlt)
  90     Serial.println(F("RightAlt changed"));
  91   if (beforeMod.bmRightGUI != afterMod.bmRightGUI)
  92     Serial.println(F("RightGUI changed"));
  93 };
  94
  95 void KbdRptParser::OnKeyUp(uint8_t mod, uint8_t key) {
  96   Serial.print(F("UP "));
  97   PrintKey(mod, key);
  98 };
  99
 100 void KbdRptParser::OnKeyPressed(uint8_t key) {
 101   Serial.print(F("ASCII: "));
 102   Serial.println((char)key);
 103 };
 104
 105 #endif