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Merge pull request #571 from HiFiPhile/iar_fifo

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Fix IAR error on memcpy and warnings.
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Ha Thach 2020-12-24 12:03:57 +07:00 committed by GitHub
commit 08f8f488a0
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1 changed files with 8 additions and 2 deletions
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10
src/common/tusb_fifo.c
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@ -30,6 +30,12 @@
#include "osal/osal.h"
#include "tusb_fifo.h"
// Supress IAR warning
// Warning[Pa082]: undefined behavior: the order of volatile accesses is undefined in this statement
#if defined(__ICCARM__)
#pragma diag_suppress = Pa082
#endif
// implement mutex lock and unlock
#if CFG_FIFO_MUTEX
@ -106,7 +112,7 @@ static void _ff_push_n(tu_fifo_t* f, void const * data, uint16_t n, uint16_t wRe
memcpy(f->buffer + (wRel * f->item_size), data, nLin*f->item_size);
// Write data wrapped around
memcpy(f->buffer, data + nLin*f->item_size, (n - nLin) * f->item_size);
memcpy(f->buffer, ((uint8_t const*) data) + nLin*f->item_size, (n - nLin) * f->item_size);
}
}
@ -131,7 +137,7 @@ static void _ff_pull_n(tu_fifo_t* f, void * p_buffer, uint16_t n, uint16_t rRel)
memcpy(p_buffer, f->buffer + (rRel * f->item_size), nLin*f->item_size);
// Read data wrapped part
memcpy(p_buffer + nLin*f->item_size, f->buffer, (n - nLin) * f->item_size);
memcpy((uint8_t*)p_buffer + nLin*f->item_size, f->buffer, (n - nLin) * f->item_size);
}
}