FreeCalypso > hg > fc-magnetite

annotate src/cs/layer1/gtt_include/ctm/m_sequence.h @ 598:717ed17d82c6

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aci3 vocoder control revamped, AT@VSEL now works as it should The vocoder control code (hl_audio_drv.c) that came with the TCS3 version of ACI was totally broken in the Calypso config (VOCODER_FUNC_INTERFACE) and worked in the standard analog voice environment only by luck. This code has now been rewritten to work correctly with our Calypso platform and TCS211 L1, and our new AT@VSEL mechanism (automatic enabling and disabling of MCSI voice path as the modem enters and exits the voice call state) now also works as designed.
author Mychaela Falconia <falcon@freecalypso.org>
date Wed, 27 Mar 2019 23:44:35 +0000
parents 945cf7f506b2
children
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1 /*
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2 *******************************************************************************
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3 *
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4 * COPYRIGHT (C) 2000 BY ERICSSON EUROLAB DEUTSCHLAND GmbH
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5 * 90411 NUERNBERG, GERMANY, Tel Int + 49 911 5217 100
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6 *
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7 * The program(s) may be used and/or copied only with the
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8 * written permission from Ericsson or in accordance
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9 * with the terms and conditions stipulated in the agreement or
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10 * contract under which the program(s) have been supplied.
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11 *
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12 *******************************************************************************
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13 *
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14 * File : m_sequence.h
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15 * Purpose : Calculation of m-sequences
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16 * (maximum-length sequecnes or pseudo noise)
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17 *
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18 *******************************************************************************
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19 */
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20
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21 #ifndef m_sequence_h
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22 #define m_sequence_h "$Id: $"
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23
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24 /*
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25 *******************************************************************************
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26 * INCLUDE FILES
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27 *******************************************************************************
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28 */
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29
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30
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31 /*
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32 *******************************************************************************
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33 * DECLARATION OF PROTOTYPES
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34 *******************************************************************************
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35 */
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36
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37 /* -------------------------------------------------------------------- */
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38 /* function m_sequence() */
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39 /* ********************* */
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40 /* Calculates one period of an m-sequence (binary pseudo noise). */
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41 /* The sequence is stored in the vector sequence, which must have a */
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42 /* of (2^r)-1, where r is an integer number between 2 and 10. */
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43 /* Therefore, with this release of m_sequence, sequences of length */
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44 /* 3, 7, 15, 31, 63, 127, 255, 511, or 1023 can be generated. */
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45 /* The resulting sequence is bipolar, i.e. it has values -1 and +1. */
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46 /* -------------------------------------------------------------------- */
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47
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48 void m_sequence(WORD16 *sequence, WORD16 length);
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49
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51 #endif
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