Last change
on this file since 43 was
43,
checked in by alain, 14 years ago
|
Two modifs in isr.s and drivers.c to support one multi_timer
per processor in clusterized multi-processors architectures.
(same segment increment as the multi_tty)
|
File size:
1.1 KB
|
Line | |
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1 | #include "stdio.h" |
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2 | |
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3 | #define NBLOCS 32 |
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4 | #define THRESHOLD 200 |
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5 | |
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6 | int main() |
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7 | { |
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8 | char buf_in[128*128]; |
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9 | char buf_out[128*128]; |
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10 | int i; |
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11 | int base = 0; |
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12 | |
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13 | while(base < 5*NBLOCS) |
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14 | { |
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15 | |
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16 | tty_printf("\n *** image %d *** at date = %d \n", base/NBLOCS, proctime()); |
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17 | |
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18 | /* Phase 1 : lecture image sur le disque et transfert vers buf_in */ |
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19 | if( ioc_read(base, buf_in, NBLOCS) ) |
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20 | { |
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21 | tty_printf("echec io_read\n"); |
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22 | exit(); |
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23 | } |
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24 | else |
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25 | { |
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26 | ioc_completed(); |
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27 | tty_printf("io_read completed at date = %d \n",proctime()); |
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28 | } |
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29 | |
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30 | /* Phase 2 : transfert de buf_in vers buf_out avec seuillage */ |
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31 | for(i=0 ; i<128*128 ; i++) |
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32 | { |
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33 | if( buf_in[i] > THRESHOLD ) buf_out[i] = 255; |
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34 | else buf_out[i] = buf_in[i]; |
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35 | } |
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36 | tty_printf("image processing completed at date = %d \n",proctime()); |
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37 | |
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38 | /* Phase 3 : transfert de buf_out vers le frame buffer par dma */ |
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39 | if( fb_sync_write(0,buf_out,128*128) ) |
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40 | { |
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41 | tty_printf("echec fb_write\n"); |
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42 | exit(); |
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43 | } |
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44 | else |
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45 | { |
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46 | tty_printf("transfer completed at date = %d \n",proctime()); |
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47 | } |
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48 | |
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49 | base = base + NBLOCS; |
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50 | } // end while |
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51 | |
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52 | exit(); |
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53 | |
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54 | return 0; |
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55 | |
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56 | } // end main |
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