Florian Kaltenberger
4a930b7d0e
git-svn-id: http://svn.eurecom.fr/openair4G/trunk@5217 818b1a75-f10b-46b9-bf7c-635c3b92a50f
69 lines
2.4 KiB
C
69 lines
2.4 KiB
C
/*******************************************************************************
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Eurecom OpenAirInterface
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Copyright(c) 1999 - 2014 Eurecom
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This program is free software; you can redistribute it and/or modify it under
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the terms of the GNU General Public License as published by the Free Software
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Foundation; either version 2 of the License, or (at your option) any later version
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This program is distributed in the hope it will be useful, but WITHOUT
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ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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more details.
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You should have received a copy of the GNU General Public License along with
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this program; if not, write to the Free Software Foundation, Inc.,
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51 Franklin St - Fifth Floor, Boston, MA 02110-1301 USA.
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The full GNU General Public License is included in this distribution in
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the file called "COPYING".
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Contact Information
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Openair Admin: openair_admin@eurecom.fr
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Openair Tech : openair_tech@eurecom.fr
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Forums : http://forums.eurecom.fsr/openairinterface
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Address : Eurecom, 2229, route des crêtes, 06560 Valbonne Sophia Antipolis, 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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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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