/**
 ******************************************************************************
 *
 * @file       pjrc_rawhid.h
 * @author     The OpenPilot Team, http://www.openpilot.org Copyright (C) 2010.
 * @addtogroup GCSPlugins GCS Plugins
 * @{
 * @addtogroup RawHIDPlugin Raw HID Plugin
 * @{
 * @brief Impliments a HID USB connection to the flight hardware as a QIODevice
 *****************************************************************************/
/*
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation; either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY
 * or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
 * for more details.
 *
 * You should have received a copy of the GNU General Public License along
 * with this program; if not, write to the Free Software Foundation, Inc.,
 * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
 */

#ifndef PJRC_RAWHID_H
#define PJRC_RAWHID_H

#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>
#include <QObject>
#include <QDebug>
#include <QString>
#include "rawhid_global.h"

#if defined( Q_OS_MAC)

	// todo:

#elif defined(Q_OS_UNIX)
//#elif defined(Q_OS_LINUX)
	#include <usb.h>
	#include <QDebug>
	#include <QString>
#elif defined(Q_OS_WIN32)
	#include <windows.h>
	#include <setupapi.h>
	#include <ddk/hidsdi.h>
	#include <ddk/hidclass.h>
#endif

// ************

#if defined( Q_OS_MAC)

	// todo:

#elif defined(Q_OS_UNIX)
//#elif defined(Q_OS_LINUX)

	typedef struct hid_struct hid_t;
	struct hid_struct
	{
		usb_dev_handle *usb;
		int open;
		int iface;
		int ep_in;
		int ep_out;
		struct hid_struct *prev;
		struct hid_struct *next;
	};

#elif defined(Q_OS_WIN32)

	typedef struct hid_struct hid_t;
	struct hid_struct
	{
		HANDLE handle;
		struct hid_struct *prev;
		struct hid_struct *next;
	};

#endif

// ************

class RAWHID_EXPORT pjrc_rawhid : public QObject
{
	Q_OBJECT

public:
	pjrc_rawhid();
	~pjrc_rawhid();

	int open(int max, int vid, int pid, int usage_page, int usage);
	int receive(int num, void *buf, int len, int timeout);
	void close(int num);
	int send(int num, void *buf, int len, int timeout);
	QString getserial(int num);
	void mytest(int num);

signals:
	void deviceUnplugged(int num);

private:
	#if defined( Q_OS_MAC)

		// todo:

	#elif defined(Q_OS_UNIX)
	//#elif defined(Q_OS_LINUX)

		hid_t *first_hid;
		hid_t *last_hid;

		void add_hid(hid_t *h);
		hid_t * get_hid(int num);
		void free_all_hid(void);
		void hid_close(hid_t *hid);
		int hid_parse_item(uint32_t *val, uint8_t **data, const uint8_t *end);

	#elif defined(Q_OS_WIN32)

		hid_t *first_hid;
		hid_t *last_hid;
		HANDLE rx_event;
		HANDLE tx_event;
		CRITICAL_SECTION rx_mutex;
		CRITICAL_SECTION tx_mutex;

		void add_hid(hid_t *h);
		hid_t * get_hid(int num);
		void free_all_hid(void);
		void hid_close(hid_t *hid);
		void print_win32_err(DWORD err);

	#endif
};

#endif