* Copyright 2008-2011 Michael Lotz <mmlr@mlotz.ch>
* Distributed under the terms of the MIT license.
*/
#ifndef USB_KEYBOARD_PROTOCOL_HANDLER_H
#define USB_KEYBOARD_PROTOCOL_HANDLER_H
#include "ProtocolHandler.h"
#include <lock.h>
class HIDReportItem;
class HIDCollection;
#define MAX_MODIFIERS 16
#define MAX_KEYS 128
#define MAX_LEDS 3
class KeyboardProtocolHandler : public ProtocolHandler {
public:
KeyboardProtocolHandler(HIDReport &inputReport,
HIDReport *outputReport);
virtual ~KeyboardProtocolHandler();
static void AddHandlers(HIDDevice &device,
HIDCollection &collection,
ProtocolHandler *&handlerList);
virtual status_t Open(uint32 flags, uint32 *cookie);
virtual status_t Close(uint32 *cookie);
virtual status_t Control(uint32 *cookie, uint32 op, void *buffer,
size_t length);
private:
void _WriteKey(uint32 key, bool down);
status_t _SetLEDs(uint8 *data);
status_t _ReadReport(bigtime_t timeout, uint32 *cookie);
private:
mutex fLock;
HIDReport & fInputReport;
HIDReport * fOutputReport;
HIDReportItem * fModifiers[MAX_MODIFIERS];
HIDReportItem * fKeys[MAX_KEYS];
HIDReportItem * fLEDs[MAX_LEDS];
bigtime_t fRepeatDelay;
bigtime_t fRepeatRate;
bigtime_t fCurrentRepeatDelay;
uint32 fCurrentRepeatKey;
uint32 fKeyCount;
uint32 fModifierCount;
uint8 fLastModifiers;
uint16 * fCurrentKeys;
uint16 * fLastKeys;
int32 fHasReader;
bool fHasDebugReader;
};
#endif
