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127 lines
4.7 KiB
C++
127 lines
4.7 KiB
C++
/// @file
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/// @brief QF/C++ port to embOS (v4.00) kernel, all supported compilers
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/// @cond
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///***************************************************************************
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/// Last updated for version 5.6.2
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/// Last updated on 2016-03-31
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///
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/// Q u a n t u m L e a P s
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/// ---------------------------
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/// innovating embedded systems
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///
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/// Copyright (C) Quantum Leaps, LLC. All rights reserved.
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///
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/// This program is open source software: you can redistribute it and/or
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/// modify it under the terms of the GNU General Public License as published
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/// by the Free Software Foundation, either version 3 of the License, or
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/// (at your option) any later version.
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///
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/// Alternatively, this program may be distributed and modified under the
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/// terms of Quantum Leaps commercial licenses, which expressly supersede
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/// the GNU General Public License and are specifically designed for
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/// licensees interested in retaining the proprietary status of their code.
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///
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/// This program is distributed in the hope that it will be useful,
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/// but WITHOUT ANY WARRANTY; without even the implied warranty of
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/// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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/// GNU General Public License for more details.
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///
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/// You should have received a copy of the GNU General Public License
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/// along with this program. If not, see <http://www.gnu.org/licenses/>.
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///
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/// Contact information:
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/// http://www.state-machine.com
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/// mailto:info@state-machine.com
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///***************************************************************************
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/// @endcond
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#ifndef qf_port_h
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#define qf_port_h
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// message mailbox and thread types for embOS
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#define QF_EQUEUE_TYPE OS_MAILBOX
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#define QF_THREAD_TYPE OS_TASK
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#define QF_OS_OBJECT_TYPE uint32_t
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// The maximum number of active objects in the application, see NOTE1
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#define QF_MAX_ACTIVE 32
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// QF interrupt disable/enable
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#define QF_INT_DISABLE() OS_IncDI()
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#define QF_INT_ENABLE() OS_DecRI()
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// QF critical section for embOS, see NOTE2
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//#define QF_CRIT_STAT_TYPE not defined
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#define QF_CRIT_ENTRY(dummy) QF_INT_DISABLE()
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#define QF_CRIT_EXIT(dummy) QF_INT_ENABLE()
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// thred options...
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#define QF_TASK_USES_FPU (static_cast<uint32_t>(1))
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#include "RTOS.h" // embOS API
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#include "qep_port.h" // QEP port
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#include "qequeue.h" // used for event deferral
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#include "qpset.h" // this QP port uses the native QP priority set
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#include "qmpool.h" // this QP port uses the native QF memory pool
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#include "qf.h" // QF platform-independent public interface
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// Facilities specific to the embOS port...
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namespace QP {
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// set task attributes (e.g., QF_TASK_USES_FPU) before starting the AO
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void QF_setEmbOsTaskAttr(QMActive *act, uint32_t attr);
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} // namespace QP
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//****************************************************************************
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// interface used only inside QF, but not in applications
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//
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#ifdef QP_IMPL
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// embOS-specific scheduler locking, see NOTE3
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#define QF_SCHED_STAT_TYPE_ struct { uint_fast8_t m_lockPrio; }
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#define QF_SCHED_LOCK_(pLockStat_, prio_) do { \
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if (OS_InInt != (OS_U8)0) { \
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(pLockStat_)->m_lockPrio = \
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static_cast<uint_fast8_t>(QF_MAX_ACTIVE + 1); \
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} else { \
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(pLockStat_)->m_lockPrio = (prio_); \
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OS_EnterRegion(); \
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} \
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} while (0)
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#define QF_SCHED_UNLOCK_(dummy) OS_LeaveRegion()
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// native QF event pool operations...
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#define QF_EPOOL_TYPE_ QMPool
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#define QF_EPOOL_INIT_(p_, poolSto_, poolSize_, evtSize_) \
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(p_).init((poolSto_), (poolSize_), (evtSize_))
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#define QF_EPOOL_EVENT_SIZE_(p_) \
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static_cast<uint_fast16_t>((p_).getBlockSize())
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#define QF_EPOOL_GET_(p_, e_, m_) \
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((e_) = static_cast<QEvt *>((p_).get((m_))))
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#define QF_EPOOL_PUT_(p_, e_) ((p_).put(e_))
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#endif // ifdef QP_IMPL
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//****************************************************************************
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// NOTE1:
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// The maximum number of active objects in QP can be increased to 63,
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// inclusive, but it can be reduced to save some memory. Also, the number of
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// active objects cannot exceed the number of embOS thread priorities,
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// because each QP active object requires a unique priority level.
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//
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// NOTE2:
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// The embOS critical section does not use the status variable, because the
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// implementation uses a global up-down counter, which allows the embOS
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// critical section to nest. Nesting of critical sections is needed in this
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// QP-embOS port.
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//
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// NOTE3:
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// embOS provides only global scheduler locking for all thread priorities
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// by means of OS_EnterRegion() and OS_LeaveRegion(). Therefore, locking the
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// scheduler only up to the specified lock priority is not supported.
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//
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#endif // qf_port_h
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