Last change
on this file since 277 was
258,
checked in by alain, 11 years ago
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This is a major release, including a deep restructuration of code.
The main evolutions are
- use of the Tsar preloader to load the GIET boot-loader from disk
- introduction of a FAT32 file system library,
- use of this fat32 library by the boot-loader to load the
map.bin data structure, and the various .elf files
- reorganisation of drivers (one file per peripheral).
- introduction of drivers for new peripherals:
vci_chbuf_dma and vci_multi_ahci.
- introduction of a new physical memory allocator in the boot code.
This release has been tested on the tsar_generic_iob architecture,
for the two following mappings: 4c_1p_iob_four.xml and 4c_1p_iob_sort.xml
|
-
Property svn:executable set to
*
|
File size:
1.8 KB
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1 | ////////////////////////////////////////////////////////////////////////////////// |
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2 | // File : mwmr_channel.h |
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3 | // Date : 01/04/2012 |
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4 | // Author : alain greiner |
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5 | // Copyright (c) UPMC-LIP6 |
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6 | /////////////////////////////////////////////////////////////////////////////////// |
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7 | |
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8 | #ifndef _MWMR_CHANNEL_H_ |
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9 | #define _MWMR_CHANNEL_H_ |
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10 | |
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11 | /////////////////////////////////////////////////////////////////////////////////// |
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12 | // MWMR channel structure |
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13 | // The data array size is defined to obtain sizeof(mwmr_channel_t) = 4096 bytes. |
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14 | // The actual size can be redefined in the mapping info data structure. |
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15 | /////////////////////////////////////////////////////////////////////////////////// |
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16 | |
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17 | typedef struct mwmr_channel_s |
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18 | { |
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19 | unsigned int ptr; // index of the first valid data word |
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20 | unsigned int ptw; // index of the first empty slot |
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21 | unsigned int sts; // number of words available |
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22 | unsigned int lock; // exclusive access lock |
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23 | unsigned int depth; // max number of words in the channel |
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24 | unsigned int width; // number of words in an item |
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25 | unsigned int data[1018]; // circular buffer |
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26 | } mwmr_channel_t; |
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27 | |
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28 | ////////////////////////////////////////////////////////////////////////////// |
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29 | // MWMR access functions |
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30 | ////////////////////////////////////////////////////////////////////////////// |
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31 | |
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32 | void mwmr_write( mwmr_channel_t* mwmr, |
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33 | unsigned int* buffer, |
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34 | unsigned int nitems ); |
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35 | |
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36 | void mwmr_read( mwmr_channel_t* mwmr, |
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37 | unsigned int* buffer, |
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38 | unsigned int nitems ); |
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39 | |
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40 | #endif |
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41 | |
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42 | // Local Variables: |
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43 | // tab-width: 4 |
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44 | // c-basic-offset: 4 |
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45 | // c-file-offsets:((innamespace . 0)(inline-open . 0)) |
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46 | // indent-tabs-mode: nil |
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47 | // End: |
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48 | // vim: filetype=c:expandtab:shiftwidth=4:tabstop=4:softtabstop=4 |
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49 | |
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