FreeCalypso > hg > fc-magnetite
view src/cs/layer1/gtt_include/ctm/m_sequence.h @ 660:293c7db5f10f
bmi3: fixed the mysterious "mute on first call" bug
When UI-enabled fw boots on a previously blank (no /mmi/* files) FFS
for the first time, the output_volume member of the persistent UI settings
structure was left uninitialized, corresponding to the earpiece volume
being set to mute, which is an invalid setting. Because of other quirks
in the far-from-finished UI code, this volume setting takes effect only
when the first call is answered, producing the odd behaviour seen at the
user level.
The current fix is to set the blank-FFS default for output_volume to
volume level 4, which is the same -6 dB Iota volume as the ACI default.
| author | Mychaela Falconia <falcon@freecalypso.org> |
|---|---|
| date | Thu, 14 May 2020 02:50:41 +0000 |
| parents | 945cf7f506b2 |
| children |
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/* ******************************************************************************* * * COPYRIGHT (C) 2000 BY ERICSSON EUROLAB DEUTSCHLAND GmbH * 90411 NUERNBERG, GERMANY, Tel Int + 49 911 5217 100 * * The program(s) may be used and/or copied only with the * written permission from Ericsson or in accordance * with the terms and conditions stipulated in the agreement or * contract under which the program(s) have been supplied. * ******************************************************************************* * * File : m_sequence.h * Purpose : Calculation of m-sequences * (maximum-length sequecnes or pseudo noise) * ******************************************************************************* */ #ifndef m_sequence_h #define m_sequence_h "$Id: $" /* ******************************************************************************* * INCLUDE FILES ******************************************************************************* */ /* ******************************************************************************* * DECLARATION OF PROTOTYPES ******************************************************************************* */ /* -------------------------------------------------------------------- */ /* function m_sequence() */ /* ********************* */ /* Calculates one period of an m-sequence (binary pseudo noise). */ /* The sequence is stored in the vector sequence, which must have a */ /* of (2^r)-1, where r is an integer number between 2 and 10. */ /* Therefore, with this release of m_sequence, sequences of length */ /* 3, 7, 15, 31, 63, 127, 255, 511, or 1023 can be generated. */ /* The resulting sequence is bipolar, i.e. it has values -1 and +1. */ /* -------------------------------------------------------------------- */ void m_sequence(WORD16 *sequence, WORD16 length); #endif