annotate src/cs/layer1/include/l1_ctl.h @ 702:9394305d4ff5 default tip

etm_audio.c: fix off-by-one error in auw of FIR coefficients This fix was already made in FC Tourmaline a while back, but it is also the kind of bugfix that deserves to be backported to Magnetite and Selenite as well.
author Mychaela Falconia <falcon@freecalypso.org>
date Mon, 31 Oct 2022 00:14:44 +0000
parents 50a15a54801e
children
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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
0
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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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