FreeCalypso > hg > fc-tourmaline
view src/cs/layer1/gtt_include/ctm/ctm_defines.h @ 15:08ecd0bd517d
scripts/mk-component.sh: import from Magnetite
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Fri, 16 Oct 2020 07:19:38 +0000 |
parents | 4e78acac3d88 |
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 : ctm_defines.h * Purpose : Global constants for the Cellular Text Telephone Modem * ******************************************************************************* */ #ifndef ctm_defines_h #define ctm_defines_h "$Id: $" #ifndef MAX #define MAX(A, B) ((A) > (B) ? (A) : (B)) #endif #define MAX_IDLE_SYMB 5 /* Number of Idle Symbols at End of Burst */ #define CHC_RATE 4 /* Rate of the Error Protection */ #define CHC_K 5 /* Constraint length of Error Protection */ #define SYMB_LEN 40 /* Length of one CTM symbol */ /* The following constant determines whether the signal processing takes */ /* place sample-by-sample or frame-by-frame (160 samples per frame) */ // #define LENGTH_TONE_VEC 160 /* signal frame size */ #define LENGTH_TONE_VEC 1 /* signal frame size */ /* Number of bits that are processed during each call of the main loop */ //LN March 13, 2002 //#define LENGTH_TX_BITS MAX(2, 2*LENGTH_TONE_VEC/SYMB_LEN) #define LENGTH_TX_BITS 2 //LN #define BITS_PER_SYMB 8 /* bits per symbol */ #define NCYCLES_0 2 /* Number of periods for symbol #0 */ #define NCYCLES_1 3 /* Number of periods for symbol #1 */ #define NCYCLES_2 4 /* Number of periods for symbol #2 */ #define NCYCLES_3 5 /* Number of periods for symbol #3 */ #define THRESHOLD_RELIABILITY_FOR_SUPPRESSING_OUTPUT 100 #define THRESHOLD_RELIABILITY_FOR_XCORR 1 #define THRESHOLD_RELIABILITY_FOR_GOING_OFFLINE 100 #define MAX_NUM_UNRELIABLE_GROSS_BITS 400 #define NUM_BITS_GUARD_INTERVAL 6 /* length of silence after a burst */ #define WAIT_SYNC_REL_THRESHOLD_0 20316 /* = 0.62*32768 */ #define WAIT_SYNC_REL_THRESHOLD_1 17039 /* = 0.52*32768 */ #define WAIT_SYNC_REL_THRESHOLD_2 23265 /* = 0.71*32768 */ #define RESYNC_REL_THRESHOLD 26542 /* = 0.81*32768 */ #define GUARD_BIT_SYMBOL 0 /* "magic number" indicating that a */ // /* bit shall be muted */ #define intlvB 8 /* Interleaver block length */ #define intlvD 2 /* Interleaver block distance (interlace) */ #define demodSyncLns 1 /* Nr of demodulator sync lines */ #define deintSyncLns 0 /* Nr of deinterleaver sync lines */ #define IDLE_SYMB 0x16 /* UCS code for Idle Symbol */ #define ENQU_SYMB 0x05 /* UCS code for Enquiry Symbol */ #if LENGTH_TONE_VEC==160 #define ENQUIRY_TIMEOUT 20 /* number of frames for negotiation */ #else #define ENQUIRY_TIMEOUT (1320/5) //19*160 #endif #define NUM_ENQUIRY_BURSTS 3 /* number of enquiry attempts */ #define NUM_MUTE_ROWS 4 /* duration of muting interval, 4 rows=80ms */ #define RESYNC_SEQ_LENGTH 32 /* must be a multiple of intlvB */ #define NUM_BITS_BETWEEN_RESYNC 352 // 352 = 320+32 /* 352 is a multiple of CHC_RATE, intlvB, and BITS_PER_SYMB, */ /* and must be greater than intlvB*((intlvB-1)*intlvD+NUM_MUTE_ROWS */ #define SILENCE_PERIOD 32 #define EARLY_SILENCE_PERIOD SILENCE_PERIOD-2 #define LATE_SILENCE_PERIOD SILENCE_PERIOD+2 #define PLAYBACK_VOLUME 0xC000 /* volume for sound card playback */ //#define DEBUG_OUTPUT /* comment this out for regular operation mode! */ #endif