qk_port.h

Quantum Platform(QP) is a family of very lightweight, state machine-based frameworks for embedded sy

//////////////////////////////////////////////////////////////////////////////
// Product: QK/C++ port to 80x86, QK, Turbo C++ 1.01, Large memory model
// Last Updated for Version: 3.2.04
// Date of the Last Update:  Nov 30, 2006
//
//                    Q u a n t u m     L e a P s
//                    ---------------------------
//                    innovating embedded systems
//
// 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 supersede
// the GPL and are specifically designed for licensees interested in
// retaining the proprietary status of their code.
//
// Contact information:
// Quantum Leaps Web site:  http://www.quantum-leaps.com
// 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 extended context (FPU) save/restore
#define QK_EXT_TYPE         FPU_context
#define QK_EXT_SAVE(ctx_)   FPU_save(ctx_)
#define QK_EXT_RESTORE(ctx_) FPU_restore(ctx_)

struct FPU_context {
    uint32_t fpu[108/4];                // the x87 FPU context takes 108-bytes
};
extern "C" void FPU_save(FPU_context *ctx);             // defined in assembly
extern "C" void FPU_restore(FPU_context *ctx);          // defined in assembly
enum QKTaskFlags {
    QK_FPU_THREAD = 0x01
};

                                             // QK-specific ISR 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_)            QK_isrExit_(pin_)

#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
#include "qf.h"                    // QF platform-independent public interface

void QK_isrExit_(uint8_t pin);

#endif                                                            // qk_port_h