kernel/machine/mach_pc/Keyboard.h

/*
 * Copyright (c) 2008-2014, Pedigree Developers
 *
 * Please see the CONTRIB file in the root of the source tree for a full
 * list of contributors.
 *
 * Permission to use, copy, modify, and distribute this software for any
 * purpose with or without fee is hereby granted, provided that the above
 * copyright notice and this permission notice appear in all copies.
 *
 * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
 * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
 * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
 * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
 * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
 * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
 * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
 */
 
#ifndef MACHINE_X86_KEYBOARD_H
#define MACHINE_X86_KEYBOARD_H
#include "pedigree/kernel/compiler.h"
#include "pedigree/kernel/machine/Keyboard.h"
#include "pedigree/kernel/machine/KeymapManager.h"
#include "pedigree/kernel/machine/types.h"
#include "pedigree/kernel/process/Mutex.h"
#include "pedigree/kernel/process/OwnedThread.h"
#include "pedigree/kernel/processor/types.h"
 
#include <config.h>
 
class Ps2Controller;
 
#define BUFLEN 256
 
class X86Keyboard : public Keyboard {
 public:
  X86Keyboard(Ps2Controller* controller);
  virtual ~X86Keyboard();
 
  virtual void initialise();
 
  virtual void setDebugState(bool enableDebugState);
  virtual bool getDebugState();
 
  virtual char getChar();
  virtual char getCharNonBlock();
 
  virtual char getLedState();
  virtual void setLedState(char state);
 
  void startReaderThread();
  void stopReaderThread();
 
 private:
  static int readerThreadTrampoline(void*);
  void readerThread();
 
  void updateLedState(char state, bool toggle);
  void handleLedResponse(uint8_t response);
 
  char scancodeToAscii(uint8_t scancode);
 
  Ps2Controller* m_pPs2Controller;
 
  KeymapManager::EscapeState m_Escape;
 
  irq_id_t m_IrqId;
 
  char m_LedState;
 
  enum LedCommandState { LedIdle, LedCommandAck, LedDataAck };
  LedCommandState m_LedCommandState;
  uint8_t m_LedSent;
  size_t m_LedRetries;
  Mutex m_LedLock;
 
  OwnedThread m_ReaderThread;
};
 
#endif