FreeCalypso > hg > fc-tourmaline

annotate src/cs/layer1/gtt_include/ctm/m_sequence.h @ 281:a75eefbf8be4

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Phone boot with PWON: weed out short button presses Every standard end user phone has a design provision, most naturally implemented in firmware, whereby the PWON button effects a boot only if it is held down long enough - short presses of this PWON button are detected, assumed to be spurious and cause the fw to power back off instead of proceeding with boot. The present change introduces this standard function in FreeCalypso.
author Mychaela Falconia <falcon@freecalypso.org>
date Fri, 24 Sep 2021 02:03:08 +0000
parents 4e78acac3d88
children
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4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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1 /*
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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2 *******************************************************************************
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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3 *
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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4 * COPYRIGHT (C) 2000 BY ERICSSON EUROLAB DEUTSCHLAND GmbH
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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5 * 90411 NUERNBERG, GERMANY, Tel Int + 49 911 5217 100
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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6 *
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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7 * The program(s) may be used and/or copied only with the
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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8 * written permission from Ericsson or in accordance
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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9 * with the terms and conditions stipulated in the agreement or
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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10 * contract under which the program(s) have been supplied.
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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11 *
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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12 *******************************************************************************
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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13 *
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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14 * File : m_sequence.h
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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15 * Purpose : Calculation of m-sequences
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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16 * (maximum-length sequecnes or pseudo noise)
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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17 *
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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18 *******************************************************************************
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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19 */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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20
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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21 #ifndef m_sequence_h
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22 #define m_sequence_h "$Id: $"
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23
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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24 /*
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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25 *******************************************************************************
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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26 * INCLUDE FILES
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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27 *******************************************************************************
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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28 */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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29
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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30
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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31 /*
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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32 *******************************************************************************
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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33 * DECLARATION OF PROTOTYPES
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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34 *******************************************************************************
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35 */
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36
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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37 /* -------------------------------------------------------------------- */
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38 /* function m_sequence() */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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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. */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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46 /* -------------------------------------------------------------------- */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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47
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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48 void m_sequence(WORD16 *sequence, WORD16 length);
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49
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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50
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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51 #endif
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52
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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53