27 lines
578 B
C
27 lines
578 B
C
#include "global.h"
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u32 __osPiAccessQueueEnabled = 0;
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OSMesg piAccessBuf;
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OSMesgQueue __osPiAccessQueue;
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void __osPiCreateAccessQueue(void) {
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__osPiAccessQueueEnabled = 1;
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osCreateMesgQueue(&__osPiAccessQueue, &piAccessBuf, 1);
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osSendMesg(&__osPiAccessQueue, NULL, OS_MESG_NOBLOCK);
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}
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void __osPiGetAccess(void) {
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OSMesg mesg;
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if (!__osPiAccessQueueEnabled) {
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__osPiCreateAccessQueue();
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}
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osRecvMesg(&__osPiAccessQueue, &mesg, OS_MESG_BLOCK);
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}
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void __osPiRelAccess(void) {
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osSendMesg(&__osPiAccessQueue, NULL, OS_MESG_NOBLOCK);
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}
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