Last change
on this file since 91 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
|
Rev | Line | |
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[15] | 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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[43] | 13 | while(base < 5*NBLOCS) |
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| 14 | { |
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[15] | 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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[43] | 24 | else |
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[15] | 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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[43] | 35 | } |
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[15] | 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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[43] | 44 | else |
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[15] | 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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