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126 lines
4.9 KiB
C
126 lines
4.9 KiB
C
/*****************************************************************************
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* Product: QK/C port for Lint, Generic C compiler
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* Last Updated for Version: 5.1.0
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* Date of the Last Update: Sep 25, 2013
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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) 2002-2013 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 2 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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* Quantum Leaps Web sites: http://www.quantum-leaps.com
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* http://www.state-machine.com
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* e-mail: info@quantum-leaps.com
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*****************************************************************************/
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#ifndef qk_port_h
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#define qk_port_h
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/**
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* \file
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* \ingroup qk
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* \brief QK/C port example for a "generic" C compiler.
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*
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* \note This is just an EXAMPLE of a QK port used for "linting" the QK.
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*/
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/****************************************************************************/
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/* QK extended context save/restore */
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/** \brief 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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*
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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 and #QK_EXT_TYPE.
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*/
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#define QK_EXT_SAVE(act_) (FPU_save((void *)(act_)->thread))
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/** \brief 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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*
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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 and #QK_EXT_TYPE.
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*/
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#define QK_EXT_RESTORE(act_) (FPU_restore((void *)(act_)->thread))
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/****************************************************************************/
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/* Thread-Local-Storage switching */
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/** \brief Define the method for switching the Thread-Local-Storage for
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* for a given thread.
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*
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* \note This is just an example of #QK_TLS macro. You need to define
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* the macro appropriately for the runtime library you're using. This macro
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* is optional and you don't need to define it. The macro is used in both the
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* regular QK scheduler QK_sched_() and the extended QK scheduler
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* QK_schedExt_().
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*/
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#define QK_TLS(act_) \
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(impure_ptr = (void *)(act_)->thread)
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/****************************************************************************/
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/* QK interrupt entry and exit */
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/** \brief Define the ISR entry sequence, if the compiler supports writing
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* interrupts in C.
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*
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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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*/
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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 (0)
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/** \brief Define the ISR exit sequence, if the compiler supports writing
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* interrupts in C.
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*
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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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*/
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#define QK_ISR_EXIT() do { \
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send End-Of-Interrupt instruction to the Interrupt Controller; \
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QF_QS_ISR_EXIT(QK_intNest_, QK_currPrio_); \
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--QK_intNest_; \
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if (QK_intNest_ == (uint8_t)0) { \
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QK_scheduleExt_(); \
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} \
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} while (0)
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void FPU_save(void *ctx); /**< \brief example of extended context save */
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void FPU_restore(void *ctx);/**< \brief example of extended context restore */
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extern void *impure_ptr; /**< \brief example of TLS pointer */
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#include "qk.h" /* QK platform-independent public interface */
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#endif /* qk_port_h */
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