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68 lines
2.5 KiB
C
68 lines
2.5 KiB
C
/*
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* Copyright (c) 2012, Natie van Rooyen. All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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* 3. No personal names or organizations' names associated with the
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* Atomthreads project may be used to endorse or promote products
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* derived from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE ATOMTHREADS PROJECT AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED
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* TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
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* PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
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* INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
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* CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef __ATOM_PORT_H
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#define __ATOM_PORT_H
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#include <stddef.h>
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#include "types.h"
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/* Required number of system ticks per second (normally 100 for 10ms tick) */
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#define SYSTEM_TICKS_PER_SEC 100
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/* Size of each stack entry / stack alignment size (e.g. 8 bits) */
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#define STACK_ALIGN_SIZE sizeof(uint32_t)
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/**
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* Architecture-specific types.
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* Most of these are available from types.h on this platform, which is
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* included above.
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*/
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#define POINTER void *
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/* *
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*
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* Functions defined in atomport_arm.S
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*
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*/
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extern uint32_t contextEnterCritical (void) ;
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extern void contextExitCritical (uint32_t posture) ;
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/* Critical region protection */
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#define CRITICAL_STORE uint32_t __atom_critical
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#define CRITICAL_START() __atom_critical = contextEnterCritical()
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#define CRITICAL_END() contextExitCritical(__atom_critical)
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/* Uncomment to enable stack-checking */
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/* #define ATOM_STACK_CHECKING */
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#endif /* __ATOM_PORT_H */
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