forked from Imagelibrary/rtems
71 lines
2.3 KiB
C
71 lines
2.3 KiB
C
/*
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* Copyright (C) 2017 Cobham Gaisler AB
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*
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* The license and distribution terms for this file may be
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* found in the file LICENSE in this distribution or at
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* http://www.rtems.org/license/LICENSE.
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*/
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#ifndef GRLIB_IMPL_H
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#define GRLIB_IMPL_H
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#include <rtems/score/basedefs.h>
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/*
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* Use interrupt lock primitives compatible with SMP defined in RTEMS 4.11.99
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* and higher.
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*/
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#if (((__RTEMS_MAJOR__ << 16) | (__RTEMS_MINOR__ << 8) | __RTEMS_REVISION__) >= 0x040b63)
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#include <rtems/score/isrlock.h>
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/* map via rtems_interrupt_lock_* API: */
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#define SPIN_DECLARE(lock) RTEMS_INTERRUPT_LOCK_MEMBER(lock)
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#define SPIN_INIT(lock, name) rtems_interrupt_lock_initialize(lock, name)
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#define SPIN_LOCK(lock, level) rtems_interrupt_lock_acquire_isr(lock, &level)
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#define SPIN_LOCK_IRQ(lock, level) rtems_interrupt_lock_acquire(lock, &level)
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#define SPIN_UNLOCK(lock, level) rtems_interrupt_lock_release_isr(lock, &level)
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#define SPIN_UNLOCK_IRQ(lock, level) rtems_interrupt_lock_release(lock, &level)
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#define SPIN_IRQFLAGS(k) rtems_interrupt_lock_context k
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#define SPIN_ISR_IRQFLAGS(k) SPIN_IRQFLAGS(k)
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#define SPIN_FREE(lock) rtems_interrupt_lock_destroy(lock)
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/* turn on/off local CPU's interrupt to ensure HW timing - not SMP safe. */
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#define IRQ_LOCAL_DECLARE(_level) rtems_interrupt_level _level
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#define IRQ_LOCAL_DISABLE(_level) rtems_interrupt_local_disable(_level)
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#define IRQ_LOCAL_ENABLE(_level) rtems_interrupt_local_enable(_level)
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#else
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#ifdef RTEMS_SMP
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#error SMP mode not compatible with these interrupt lock primitives
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#endif
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/* maintain single-core compatibility with older versions of RTEMS: */
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#define SPIN_DECLARE(name)
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#define SPIN_INIT(lock, name)
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#define SPIN_LOCK(lock, level)
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#define SPIN_LOCK_IRQ(lock, level) rtems_interrupt_disable(level)
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#define SPIN_UNLOCK(lock, level)
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#define SPIN_UNLOCK_IRQ(lock, level) rtems_interrupt_enable(level)
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#define SPIN_IRQFLAGS(k) rtems_interrupt_level k
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#define SPIN_ISR_IRQFLAGS(k)
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#define SPIN_FREE(lock)
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/* turn on/off local CPU's interrupt to ensure HW timing - not SMP safe. */
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#define IRQ_LOCAL_DECLARE(_level) rtems_interrupt_level _level
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#define IRQ_LOCAL_DISABLE(_level) rtems_interrupt_disable(_level)
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#define IRQ_LOCAL_ENABLE(_level) rtems_interrupt_enable(_level)
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#endif
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#ifdef __cplusplus
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extern "C" {
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#endif
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#ifdef __cplusplus
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}
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#endif
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#endif /* GRLIB_IMPL_H */
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