FreeCalypso > hg > tcs211-l1-reconst

comparison chipsetsw/layer1/gtt_include/ctm/ctm_defines.h @ 0:509db1a7b7b8

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initial import: leo2moko-r1
author Space Falcon <falcon@ivan.Harhan.ORG>
date Mon, 01 Jun 2015 03:24:05 +0000
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1 /*
2 *******************************************************************************
3 *
4 * COPYRIGHT (C) 2000 BY ERICSSON EUROLAB DEUTSCHLAND GmbH
5 * 90411 NUERNBERG, GERMANY, Tel Int + 49 911 5217 100
6 *
7 * The program(s) may be used and/or copied only with the
8 * written permission from Ericsson or in accordance
9 * with the terms and conditions stipulated in the agreement or
10 * contract under which the program(s) have been supplied.
11 *
12 *******************************************************************************
13 *
14 * File : ctm_defines.h
15 * Purpose : Global constants for the Cellular Text Telephone Modem
16 *
17 *******************************************************************************
18 */
19 #ifndef ctm_defines_h
20 #define ctm_defines_h "$Id: $"
21
22 #ifndef MAX
23 #define MAX(A, B) ((A) > (B) ? (A) : (B))
24 #endif
25
26 #define MAX_IDLE_SYMB 5 /* Number of Idle Symbols at End of Burst */
27 #define CHC_RATE 4 /* Rate of the Error Protection */
28 #define CHC_K 5 /* Constraint length of Error Protection */
29 #define SYMB_LEN 40 /* Length of one CTM symbol */
30
31 /* The following constant determines whether the signal processing takes */
32 /* place sample-by-sample or frame-by-frame (160 samples per frame) */
33 // #define LENGTH_TONE_VEC 160 /* signal frame size */
34 #define LENGTH_TONE_VEC 1 /* signal frame size */
35
36 /* Number of bits that are processed during each call of the main loop */
37 //LN March 13, 2002
38 //#define LENGTH_TX_BITS MAX(2, 2*LENGTH_TONE_VEC/SYMB_LEN)
39 #define LENGTH_TX_BITS 2
40 //LN
41
42 #define BITS_PER_SYMB 8 /* bits per symbol */
43
44 #define NCYCLES_0 2 /* Number of periods for symbol #0 */
45 #define NCYCLES_1 3 /* Number of periods for symbol #1 */
46 #define NCYCLES_2 4 /* Number of periods for symbol #2 */
47 #define NCYCLES_3 5 /* Number of periods for symbol #3 */
48
49 #define THRESHOLD_RELIABILITY_FOR_SUPPRESSING_OUTPUT 100
50 #define THRESHOLD_RELIABILITY_FOR_XCORR 1
51 #define THRESHOLD_RELIABILITY_FOR_GOING_OFFLINE 100
52 #define MAX_NUM_UNRELIABLE_GROSS_BITS 400
53
54 #define NUM_BITS_GUARD_INTERVAL 6 /* length of silence after a burst */
55
56 #define WAIT_SYNC_REL_THRESHOLD_0 20316 /* = 0.62*32768 */
57 #define WAIT_SYNC_REL_THRESHOLD_1 17039 /* = 0.52*32768 */
58 #define WAIT_SYNC_REL_THRESHOLD_2 23265 /* = 0.71*32768 */
59 #define RESYNC_REL_THRESHOLD 26542 /* = 0.81*32768 */
60
61 #define GUARD_BIT_SYMBOL 0 /* "magic number" indicating that a */
62 // /* bit shall be muted */
63
64 #define intlvB 8 /* Interleaver block length */
65 #define intlvD 2 /* Interleaver block distance (interlace) */
66
67 #define demodSyncLns 1 /* Nr of demodulator sync lines */
68 #define deintSyncLns 0 /* Nr of deinterleaver sync lines */
69
70 #define IDLE_SYMB 0x16 /* UCS code for Idle Symbol */
71 #define ENQU_SYMB 0x05 /* UCS code for Enquiry Symbol */
72
73 #if LENGTH_TONE_VEC==160
74 #define ENQUIRY_TIMEOUT 20 /* number of frames for negotiation */
75 #else
76 #define ENQUIRY_TIMEOUT (1320/5) //19*160
77 #endif
78
79 #define NUM_ENQUIRY_BURSTS 3 /* number of enquiry attempts */
80
81 #define NUM_MUTE_ROWS 4 /* duration of muting interval, 4 rows=80ms */
82 #define RESYNC_SEQ_LENGTH 32 /* must be a multiple of intlvB */
83
84 #define NUM_BITS_BETWEEN_RESYNC 352 // 352 = 320+32
85 /* 352 is a multiple of CHC_RATE, intlvB, and BITS_PER_SYMB, */
86 /* and must be greater than intlvB*((intlvB-1)*intlvD+NUM_MUTE_ROWS */
87
88 #define SILENCE_PERIOD 32
89 #define EARLY_SILENCE_PERIOD SILENCE_PERIOD-2
90 #define LATE_SILENCE_PERIOD SILENCE_PERIOD+2
91 #define PLAYBACK_VOLUME 0xC000 /* volume for sound card playback */
92
93 //#define DEBUG_OUTPUT /* comment this out for regular operation mode! */
94
95 #endif