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annotate src/cs/layer1/include/l1_ctl.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 50a15a54801e
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1 /************* Revision Controle System Header *************
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2 * GSM Layer 1 software
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3 * L1_CTL.H
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4 *
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5 * Filename l1_ctl.h
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6 * Copyright 2003 (C) Texas Instruments
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7 *
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8 ************* Revision Controle System Header *************/
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10 /************************************/
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11 /* Automatic timing control (TOA) */
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12 /************************************/
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13 #define C_RED 1 // Factor used to reduce the maximum accumulated values.
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14 // Default : 1/2
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15 #define C_GEW 1 // Weighting factor. Default : 1/2
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16
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17 #define C_SNRGR 2560 // 2.5 F6.10
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18 #define C_SNR_THR 8192 // 8 F6.10
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19 #define TOA_HISTO_LEN 11 // Histogram length
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21 /*
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22 * FreeCalypso Frankenstein: the following definition has been added
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23 * from LoCosto version of this file, as it is used by l1_cmplx.c
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24 * fairly extensively.
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25 *
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26 * Disassembly-matching reconstruction has revealed that the constant
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27 * in question was originally 210 in the TCS211 version, and then
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28 * increased to 220 in the LoCosto source. We currently seek to match
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29 * TCS211 without any changes, hence we are setting it back to 210.
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30 */
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31 #define IL_FOR_RXLEV_SNR 210 // RX POWER LEVEL
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32
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33 /************************************/
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34 /* Automatic Gain Control (AGC) */
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35 /************************************/
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36
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37 #define INDEX_MIN 0
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38 #define INDEX_MAX 240 // 120
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39
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40 /************************************/
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41 /* Automatic frequency compensation */
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42 /************************************/
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43 #define C_thr_snr 2560 // 1/0.4 * 2**10
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44 #define C_thr_P 524288L // 0.5 * 2**20
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45 #define C_cov_start 838861L // 0.8 * 2**20
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46 #define C_a0_kalman 10486L // 0.01 * 2**20
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47 #define C_g_kalman 53687091L// 0.05 * 2**30
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48 #define C_N_del 2 // delay of frequency control loop
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49 // due to C W R pipeline
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50 #define C_Q 3L // 0.000003 * 2**20
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51 #define C_thr_K 209715L // 0.2 * 2**20
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52 #define C_thr_phi 328 // 0.01 * 2**15
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53
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54 #if (VCXO_ALGO == 1)
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55 #define C_WIN_AVG_SIZE_M 64 // average size M
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56 #define C_PSI_AVG_SIZE_D 32 // distance size D
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57 #define C_MSIZE (C_WIN_AVG_SIZE_M * C_PSI_AVG_SIZE_D) // Data history for predictor
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58 #define C_RGAP_BAD_SNR_COUNT_B 32 // bad SNR count B
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59 #define ALGO_AFC_RXGAP 1 // reception gap algo
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60 #define ALGO_AFC_KALMAN 1 // Kalman filter
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61 #define ALGO_AFC_LQG_PREDICTOR 2 // LQG filter + rgap predictor
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62 #define ALGO_AFC_KALMAN_PREDICTOR 3 // Kalman filter + rgap predictor
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63 #endif
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64
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65 #if ((ANLG_FAM == 1) || (ANLG_FAM == 2) || (ANLG_FAM == 3))
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66 // clipping related to AFC DAC linearity range
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67 #define C_max_step 32000 // 4000 * 2**3
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68 #define C_min_step -32000 // -4000 * 2**3
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69 #endif
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70
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