Cedric Roux
56c66c09aa
Pre-ci test passed git-svn-id: http://svn.eurecom.fr/openair4G/trunk@4000 818b1a75-f10b-46b9-bf7c-635c3b92a50f
40 lines
1.2 KiB
C
40 lines
1.2 KiB
C
extern unsigned int threegpplte_interleaver_output;
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extern unsigned int threegpplte_interleaver_tmp;
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extern inline void threegpplte_interleaver_reset(void) {
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threegpplte_interleaver_output = 0;
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threegpplte_interleaver_tmp = 0;
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}
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extern inline unsigned short threegpplte_interleaver(unsigned short f1,
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unsigned short f2,
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unsigned short K) {
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threegpplte_interleaver_tmp = (threegpplte_interleaver_tmp+(f2<<1));
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threegpplte_interleaver_output = (threegpplte_interleaver_output + threegpplte_interleaver_tmp + f1 - f2)%K;
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#ifdef DEBUG_TURBO_ENCODER
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printf("Interleaver output %d\n",threegpplte_interleaver_output);
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#endif
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return(threegpplte_interleaver_output);
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}
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extern inline short threegpp_interleaver_parameters(unsigned short bytes_per_codeword) {
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if (bytes_per_codeword<=64)
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return (bytes_per_codeword-5);
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else if (bytes_per_codeword <=128)
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return (59 + ((bytes_per_codeword-64)>>1));
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else if (bytes_per_codeword <= 256)
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return (91 + ((bytes_per_codeword-128)>>2));
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else if (bytes_per_codeword <= 768)
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return (123 + ((bytes_per_codeword-256)>>3));
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else {
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#ifdef DEBUG_TURBO_ENCODER
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printf("Illegal codeword size !!!\n");
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#endif
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return(-1);
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}
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}
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