5
Last change
on this file since bf70702 was
6878519,
checked in by Christian Mauderer <christian.mauderer@…>, on 02/06/18 at 15:28:28
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bsp/atsam: Fix cache / DMA handling in SPI.
This patch fixes the cache handling for the atsam SPI driver. Note that
this solution might doesn't have the best performance for small packets.
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Property mode set to
100644
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File size:
893 bytes
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1 | /* |
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2 | * Copyright (c) 2018 embedded brains GmbH. All rights reserved. |
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3 | * |
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4 | * embedded brains GmbH |
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5 | * Dornierstr. 4 |
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6 | * 82178 Puchheim |
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7 | * Germany |
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8 | * <rtems@embedded-brains.de> |
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9 | * |
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10 | * The license and distribution terms for this file may be |
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11 | * found in the file LICENSE in this distribution or at |
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12 | * http://www.rtems.org/license/LICENSE. |
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13 | */ |
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14 | |
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15 | #ifndef ATSAM_IOCOPY_H |
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16 | #define ATSAM_IOCOPY_H |
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17 | |
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18 | #include <rtems.h> |
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19 | #include <stdint.h> |
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20 | |
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21 | #ifdef __cplusplus |
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22 | extern "C" { |
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23 | #endif /* __cplusplus */ |
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24 | |
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25 | /* |
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26 | * Note: This functions are for copying from or to memory that is marked as |
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27 | * Peripheral memory. In this regions a misaligned access is not allowed. |
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28 | * Therefore memcopy would not work in all cases. |
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29 | */ |
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30 | void atsam_copy_to_io(void *dst, const void *src, size_t n); |
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31 | void atsam_copy_from_io(void *dst, const void *src, size_t n); |
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32 | |
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33 | #ifdef __cplusplus |
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34 | } |
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35 | #endif /* __cplusplus */ |
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36 | |
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37 | #endif /* ATSAM_IOCOPY_H */ |
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