qk_port.h

state machine working with rtos

/*****************************************************************************
* Product:  QK/C, port to 80x86, QK, Turbo C++ 1.01, Large model
* Last Updated for Version: 3.1.05
* Date of the Last Update:  Jan 24, 2006
*
* Copyright (C) 2002-2006 Quantum Leaps, LLC. All rights reserved.
*
* This software may be distributed and modified under the terms of the GNU
* General Public License version 2 (GPL) as published by the Free Software
* Foundation and appearing in the file GPL.TXT included in the packaging of
* this file. Please note that GPL Section 2[b] requires that all works based
* on this software must also be made publicly available under the terms of
* the GPL ("Copyleft").
*
* Alternatively, this software may be distributed and modified under the
* terms of Quantum Leaps commercial licenses, which expressly allow the
* licensees to retain the proprietary status of their code. The licensees
* who use this software under one of Quantum Leaps commercial licenses do
* not use this software under the GPL and therefore are not subject to any
* of its terms.
*
* Contact information:
* Quantum Leaps Web site:  http://www.quantum-leaps.com
* Quantum Leaps licensing: http://www.quantum-leaps.com/licensing
* Quantum Leaps products:  http://www.quantum-leaps.com/products
* e-mail:                  [e-mail]
*****************************************************************************/
#ifndef qk_port_h
#define qk_port_h
                                          /* QK critical section entry/exit */
/* QK_INT_KEY_TYPE not defined */
#define QK_INT_LOCK(key_)   disable()
#define QK_INT_UNLOCK(key_) enable()

                                             /* QK interrupt entry and exit */
#define QK_ISR_ENTRY(pin_, isrPrio_) do { \
    (pin_) = QK_currPrio_; \
    QK_currPrio_ = (isrPrio_); \
    QF_QS_ISR_ENTRY(QK_currPrio_); \
    enable(); \
} while (0)

#define QK_ISR_EXIT(pin_) do { \
    QF_INT_LOCK(ignore); \
    outportb(0x20, 0x20); \
    QF_QS_ISR_EXIT(QK_currPrio_); \
    QK_currPrio_ = (pin_); \
    QK_schedule_(); \
} while (0)


#include <dos.h>                  /* for declarations of disable()/enable() */
#undef outportb /*don't use the macro because it has a bug in Turbo C++ 1.01*/

#include "qk.h"                 /* QK platform-independent public interface */

#endif                                                         /* qk_port_h */

/*****************************************************************************
* NOTE:
* The QK port on x86 is not a pure play, but rather, QK is based in this
* case on DOS.
*/