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view src/cs/layer1/include/l1_ctl.h @ 268:f2e52cab0a73

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abb_inth.c: check all interrupt causes, not just one The original code used if - else if - else if etc constructs, thus the first detected interrupt was the only one handled. However, Iota ITSTATREG is a clear-on-read register, thus if we only handle the first detected interrupt and skip checking the others, then the other interrupts will be lost, if more than one interrupt happened to occur in one ABB interrupt handling cycle - a form of rare race condition. Change the code to check all interrupts that were read in this cycle.
author Mychaela Falconia <falcon@freecalypso.org>
date Sun, 13 Jun 2021 18:17:53 +0000
parents 4e78acac3d88
children
line wrap: on
line source

/************* Revision Controle System Header *************
 *                  GSM Layer 1 software 
 * L1_CTL.H
 *
 *        Filename l1_ctl.h
 *  Copyright 2003 (C) Texas Instruments  
 *
 ************* Revision Controle System Header *************/

/************************************/
/* Automatic timing control (TOA)   */
/************************************/
#define  C_RED              1   // Factor used to reduce the maximum accumulated values. 
                                // Default : 1/2 
#define  C_GEW              1   // Weighting factor. Default : 1/2   

#define  C_SNRGR         2560   // 2.5 F6.10
#define  C_SNR_THR       8192   // 8   F6.10
#define  TOA_HISTO_LEN   11     // Histogram length          

/*
 * FreeCalypso Frankenstein: the following definition has been added
 * from LoCosto version of this file, as it is used by l1_cmplx.c
 * fairly extensively.
 *
 * Disassembly-matching reconstruction has revealed that the constant
 * in question was originally 210 in the TCS211 version, and then
 * increased to 220 in the LoCosto source.  We currently seek to match
 * TCS211 without any changes, hence we are setting it back to 210.
 */
#define   IL_FOR_RXLEV_SNR      210 // RX POWER LEVEL

/************************************/
/* Automatic Gain Control (AGC)     */
/************************************/

#define INDEX_MIN           0
#define INDEX_MAX         240   // 120

/************************************/
/* Automatic frequency compensation */
/************************************/
#define  C_thr_snr        2560     //  1/0.4    * 2**10               
#define  C_thr_P          524288L  //  0.5      * 2**20               
#define  C_cov_start      838861L  //  0.8      * 2**20               
#define  C_a0_kalman      10486L   //  0.01     * 2**20               
#define  C_g_kalman       53687091L//  0.05     * 2**30               
#define  C_N_del          2        //  delay of frequency control loop
                                   //  due to C W R pipeline          
#define  C_Q              3L       //  0.000003 * 2**20               
#define  C_thr_K          209715L  //  0.2      * 2**20               
#define  C_thr_phi        328      //  0.01     * 2**15

#if (VCXO_ALGO == 1)
  #define  C_WIN_AVG_SIZE_M       64  // average size M
  #define  C_PSI_AVG_SIZE_D       32  // distance size D
  #define  C_MSIZE                (C_WIN_AVG_SIZE_M * C_PSI_AVG_SIZE_D) // Data history for predictor
  #define  C_RGAP_BAD_SNR_COUNT_B 32  // bad SNR count B 
  #define  ALGO_AFC_RXGAP            1  // reception gap algo
  #define  ALGO_AFC_KALMAN           1  // Kalman filter
  #define  ALGO_AFC_LQG_PREDICTOR    2  // LQG filter + rgap predictor
  #define  ALGO_AFC_KALMAN_PREDICTOR 3 // Kalman filter + rgap predictor
#endif

#if ((ANLG_FAM == 1) || (ANLG_FAM == 2) || (ANLG_FAM == 3))
   // clipping related to AFC DAC linearity range
  #define  C_max_step        32000   //   4000 * 2**3                    
  #define  C_min_step       -32000   //  -4000 * 2**3                   
#endif