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140 lines
5.4 KiB
C
140 lines
5.4 KiB
C
/**
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* @file
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* @brief QF/C generic port to uC/OS-II
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* @cond
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******************************************************************************
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* Last updated for version 6.9.1
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* Last updated on 2020-09-08
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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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* Modern Embedded Software
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*
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* Copyright (C) 2005-2020 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 <www.gnu.org/licenses>.
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*
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* Contact information:
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* <www.state-machine.com/licensing>
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* <info@state-machine.com>
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******************************************************************************
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* @endcond
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*/
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#ifndef QF_PORT_H
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#define QF_PORT_H
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/* uC/OS-II event queue and thread types */
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#define QF_EQUEUE_TYPE OS_EVENT *
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#define QF_THREAD_TYPE uint32_t
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/* The maximum number of active objects in the application */
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#define QF_MAX_ACTIVE ((OS_LOWEST_PRIO - 2 < 64) ? (OS_LOWEST_PRIO - 2) : 64U)
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#include "ucos_ii.h" /* uC/OS-II API, port and compile-time configuration */
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/* uC/OS-II crtitical section, NOTE1 */
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#if (OS_CRITICAL_METHOD == 1u)
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/* QF_CRIT_STAT_TYPE not defined */
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#define QF_CRIT_ENTRY(dummy) OS_ENTER_CRITICAL()
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#define QF_CRIT_EXIT(dummy) OS_EXIT_CRITICAL()
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#elif (OS_CRITICAL_METHOD == 3u)
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#define QF_CRIT_STAT_TYPE OS_CPU_SR
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#define QF_CRIT_ENTRY(dummy) OS_ENTER_CRITICAL()
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#define QF_CRIT_EXIT(dummy) OS_EXIT_CRITICAL()
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#else
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#error Unsupported uC/OS-II critical section type
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#endif /* OS_CRITICAL_METHOD */
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#include "qep_port.h" /* QEP port */
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#include "qequeue.h" /* native QF event queue for deferring events */
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#include "qmpool.h" /* native QF event pool */
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#include "qf.h" /* QF platform-independent public interface */
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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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/* uC/OS-II crtitical section, NOTE1 */
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#if (OS_CRITICAL_METHOD == 3u)
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/* internal uC/OS-II critical section operations, NOTE1 */
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#define QF_CRIT_STAT_ OS_CPU_SR cpu_sr;
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#define QF_CRIT_E_() OS_ENTER_CRITICAL()
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#define QF_CRIT_X_() OS_EXIT_CRITICAL()
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#endif /* OS_CRITICAL_METHOD */
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/* uC/OS-II-specific scheduler locking, see NOTE2 */
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#define QF_SCHED_STAT_
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#define QF_SCHED_LOCK_(dummy) do { \
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if (OSIntNesting == 0) { \
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OSSchedLock(); \
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} \
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} while (false)
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#define QF_SCHED_UNLOCK_() do { \
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if (OSIntNesting == 0) { \
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OSSchedUnlock(); \
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} \
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} while (false)
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/* uC/OS-II event pool operations... */
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#define QF_EPOOL_TYPE_ OS_MEM*
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#define QF_EPOOL_INIT_(pool_, poolSto_, poolSize_, evtSize_) do { \
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INT8U err; \
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(pool_) = OSMemCreate((poolSto_), (INT32U)((poolSize_)/(evtSize_)), \
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(INT32U)(evtSize_), &err); \
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Q_ASSERT_ID(105, err == OS_ERR_NONE); \
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} while (false)
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#define QF_EPOOL_EVENT_SIZE_(pool_) ((pool_)->OSMemBlkSize)
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#define QF_EPOOL_GET_(pool_, e_, m_, qs_id_) do { \
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QF_CRIT_STAT_ \
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QF_CRIT_E_(); \
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if ((pool_)->OSMemNFree > (m_)) { \
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INT8U err; \
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(e_) = (QEvt *)OSMemGet((pool_), &err); \
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Q_ASSERT_ID(205, err == OS_ERR_NONE); \
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} \
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else { \
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(e_) = (QEvt *)0; \
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} \
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QF_CRIT_X_(); \
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} while (false)
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#define QF_EPOOL_PUT_(pool_, e_, qs_id_) \
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Q_ALLEGE_ID(305, OSMemPut((pool_), (void *)(e_)) == OS_ERR_NONE)
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#endif /* ifdef QP_IMPL */
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/*****************************************************************************
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* NOTE1:
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* This QP port to uC/OS-II re-uses the exact same crtical section mechanism
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* as uC/OS-II. The goal is to make this port independent on the CPU or the
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* toolchain by employing only the official uC/OS-II API. That way, all CPU
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* and toolchain dependencies are handled internally by uC/OS-II.
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*
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* NOTE2:
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* uC/OS-II provides only global scheduler locking for all thread priorities
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* by means of OSSchedLock() and OSSchedUnlock(). 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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