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113 lines
4.2 KiB
C
113 lines
4.2 KiB
C
/// @file
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/// @brief QK/C++ port to Lint, Generic C++ compiler
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/// @cond
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///***************************************************************************
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/// Last updated for version 5.6.0
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/// Last updated on 2015-12-29
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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 qk_port_h
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#define qk_port_h
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//lint -save -e1960 MISRA-C++:2008 Rule 7-3-1, Global declaration
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//****************************************************************************
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// QK extended context (FPU) save/restore
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//! Define the method for saving the extended context (e.g.,
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//! the context of a floating-point co-processor)
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/// @note This is just an example of #QK_EXT_SAVE macro. You need to define
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/// the macro appropriately for the co-processor you're using. This macro
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/// is only used in the extended QK scheduler QK_scheduleExt_(). If you define
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/// #QK_EXT_SAVE, you also need to provide #QK_EXT_RESTORE.
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#define QK_EXT_SAVE(act_) \
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FPU_save(static_cast<void *>((act_)->getThread()))
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//! Define the method for restoring the extended context (e.g.,
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/// the context of a floating-point co-processor).
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/// @note This is just an example of #QK_EXT_RESTORE macro. You need to define
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/// the macro appropriately for the co-processor you're using. This macro
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/// is only used in the extended QK scheduler QK_scheduleExt_(). If you define
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/// #QK_EXT_RESTORE, you also need to provide #QK_EXT_SAVE.
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#define QK_EXT_RESTORE(act_) \
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FPU_restore(static_cast<void *>((act_)->getThread()))
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//****************************************************************************
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// QK interrupt entry and exit
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//! Define the ISR entry sequence, if the compiler supports writing
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//! interrupts in C++.
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/// @note This is just an example of #QK_ISR_ENTRY. You need to define
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/// the macro appropriately for the CPU/compiler you're using. Also, some
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/// QK ports will not define this macro, but instead will provide ISR
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/// skeleton code in assembly.
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#define QK_ISR_ENTRY() do { \
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++QK_intNest_; \
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QF_QS_ISR_ENTRY(QK_intNest_, QK_currPrio_); \
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} while (false)
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//! Define the ISR exit sequence, if the compiler supports writing
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//! interrupts in C++.
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/// @note This is just an example of #QK_ISR_EXIT. You need to define
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/// the macro appropriately for the CPU/compiler you're using. Also, some
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/// QK ports will not define this macro, but instead will provide ISR
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/// skeleton code in assembly.
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#define QK_ISR_EXIT() do { \
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--QK_intNest_; \
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if (QK_intNest_ == static_cast<uint_fast8_t>(0)) { \
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uint_fast8_t p = QK_schedPrio_(); \
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if (p != static_cast<uint_fast8_t>(0)) { \
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QK_sched_(p); \
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} \
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} \
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else { \
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Q_ERROR(); \
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} \
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} while (false)
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extern "C" {
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void FPU_save(void *ctx); // defined in assembly
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void FPU_restore(void *ctx); // defined in assembly
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extern void *impure_ptr;
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} // extern "C"
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//lint -restore
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#include "qk.h" // QK platform-independent public interface
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#endif // qk_port_h
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