gauthier
c7518ecf42
git-svn-id: http://svn.eurecom.fr/openair4G/trunk@7885 818b1a75-f10b-46b9-bf7c-635c3b92a50f
71 lines
2.4 KiB
C
71 lines
2.4 KiB
C
/*******************************************************************************
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OpenAirInterface
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Copyright(c) 1999 - 2014 Eurecom
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OpenAirInterface is free software: you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation, either version 3 of the License, or
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(at your option) any later version.
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OpenAirInterface is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with OpenAirInterface.The full GNU General Public License is
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included in this distribution in the file called "COPYING". If not,
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see <http://www.gnu.org/licenses/>.
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Contact Information
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OpenAirInterface Admin: openair_admin@eurecom.fr
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OpenAirInterface Tech : openair_tech@eurecom.fr
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OpenAirInterface Dev : openair4g-devel@lists.eurecom.fr
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Address : Eurecom, Campus SophiaTech, 450 Route des Chappes, CS 50193 - 06904 Biot Sophia Antipolis cedex, FRANCE
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*******************************************************************************/
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extern unsigned int threegpplte_interleaver_output;
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extern unsigned int threegpplte_interleaver_tmp;
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static inline void threegpplte_interleaver_reset(void)
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{
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threegpplte_interleaver_output = 0;
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threegpplte_interleaver_tmp = 0;
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}
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static 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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{
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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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static inline short threegpp_interleaver_parameters(unsigned short bytes_per_codeword)
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{
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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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