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view src/gpf2/ccd/bitfun.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 864b8cc0cf63
children
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/* 
+----------------------------------------------------------------------------- 
|  Project :  
|  Modul   : bitfun.h
+----------------------------------------------------------------------------- 
|  Copyright 2002 Texas Instruments Berlin, AG 
|                 All rights reserved. 
| 
|                 This file is confidential and a trade secret of Texas 
|                 Instruments Berlin, AG 
|                 The receipt of or possession of this file does not convey 
|                 any rights to reproduce or disclose its contents or to 
|                 manufacture, use, or sell anything it may describe, in 
|                 whole, or in part, without the specific written consent of 
|                 Texas Instruments Berlin, AG. 
+----------------------------------------------------------------------------- 
|  Purpose :  Condat Coder Decoder
|             Prototypes of the elementary bit manipulation functions
+----------------------------------------------------------------------------- 
*/ 


#ifndef __BITFUN
#define __BITFUN


#ifndef __BITFUN_C__

EXTERN void   bf_writePadBits      (T_CCD_Globs *globs);
EXTERN void   bf_writeVal          (ULONG value, ULONG bSize, T_CCD_Globs *globs);
EXTERN ULONG  bf_getBits           (ULONG  len, T_CCD_Globs *globs);
EXTERN void   bf_writeBitStr_PER   (USHORT len, T_CCD_Globs *globs);
EXTERN void   bf_readBitStr_PER    (USHORT len, T_CCD_Globs *globs);
EXTERN void   bf_writeBits         (ULONG  len, T_CCD_Globs *globs);
EXTERN void   bf_readBits          (ULONG  len, T_CCD_Globs *globs);
EXTERN void   bf_writeBitChunk     (ULONG  len, T_CCD_Globs *globs);
EXTERN void   bf_readBitChunk      (ULONG  len, T_CCD_Globs *globs);
EXTERN BOOL   bf_readBit           (T_CCD_Globs *globs);
EXTERN void   bf_writeBit          (BOOL Bit, T_CCD_Globs *globs);
EXTERN UBYTE  bf_decodeByteNumber  (const ULONG len, T_CCD_Globs *globs);
EXTERN ULONG  bf_decodeShortNumber (const ULONG len, T_CCD_Globs *globs);
EXTERN ULONG  bf_decodeLongNumber  (UBYTE len, T_CCD_Globs *globs);
EXTERN void   bf_codeShortNumber   (UBYTE len, USHORT val, T_CCD_Globs *globs);
EXTERN void   bf_codeByteNumber    (UBYTE len, UBYTE val, T_CCD_Globs *globs);
EXTERN void   bf_codeLongNumber    (UBYTE len, ULONG val, T_CCD_Globs *globs);
EXTERN void   bf_recodeShortNumber (USHORT pos, UBYTE len, USHORT val, T_CCD_Globs *globs);
EXTERN void   bf_recodeByteNumber  (USHORT pos, UBYTE len, UBYTE  val, T_CCD_Globs *globs);
EXTERN void   bf_recodeBit         (USHORT pos, UBYTE Bit, T_CCD_Globs *globs);
EXTERN void   bf_rShift8Bit        (USHORT srcBitPos, USHORT bitLen, T_CCD_Globs *globs);

#endif /* __BITFUN_C__ */

/* a Macro for incrementing the position in the bitbuffer         */
/* _bitpos, _bytepos and _byteoffs are recalculated               */

#define bf_incBitpos(A, globs) globs->bitpos = (USHORT)(globs->bitpos+(A));\
                        globs->bytepos = (USHORT)(globs->bitpos >> 3);\
                        globs->byteoffs = (UBYTE)(globs->bitpos & 7)
#define bf_setBitpos(A, globs) globs->bitpos = (USHORT)(A);\
                        globs->bytepos = (USHORT)(globs->bitpos >> 3);\
                        globs->byteoffs = (UBYTE)(globs->bitpos & 7)

/*
 * end of bitstream if we can not read almost 4 bits
 */
#define bf_endOfBitstream(globs) (globs->bitpos >= globs->maxBitpos)

#endif