FreeCalypso > hg > fc-magnetite

annotate src/cs/layer1/gtt_include/ctm/viterbi.h @ 605:07d0dc4431f4

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bootloader.s: same MEMIF fix as in int.s plus DPLL BYPASS fix Both MEMIF and DPLL settings are now the same between int.s and bootloader.s assembly code paths. Previously bootloader.s was setting DPLL BYPASS /2 mode, which persisted until _INT_Initialize code with the bootloader body omitted, or was changed to /1 in the hardware init function in the bootloader.lib:start.obj module.
author Mychaela Falconia <falcon@freecalypso.org>
date Mon, 17 Jun 2019 18:40:32 +0000
parents 945cf7f506b2
children
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1 /*
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2 *******************************************************************************
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3 *
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4 * COPYRIGHT (C) 2000 BY ERICSSON EUROLAB DEUTSCHLAND GmbH
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5 *
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6 * The program(s) may be used and/or copied only with the
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7 * written permission from Ericsson or in accordance
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8 * with the terms and conditions stipulated in the agreement or
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9 * contract under which the program(s) have been supplied.
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10 *
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11 *******************************************************************************
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12 *
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13 * File : viterbi.h
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14 * Purpose : Header file for viterbi.c
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15 * Author : Francisco Javier Gil Gomez
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16 *
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17 * Revision history
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18 *
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19 * $Log: $
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20 *
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21 *******************************************************************************
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22 */
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23
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24 #ifndef viterbi_h
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25 #define viterbi_h "$Id: $"
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26
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27 #include <stdio.h>
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28 #include <math.h>
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29
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30 #include "conv_poly.h" /* definition of viterbi_t */
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31
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32
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33 /***********************************************************************/
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34 /* viterbi_init() */
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35 /* ************** */
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36 /* Initialization of the Viterbi decoder. */
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37 /* */
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38 /* output variables: */
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39 /* *viterbi_state initialized state variable of the decoder */
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40 /* */
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41 /***********************************************************************/
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42
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43 void viterbi_init(viterbi_t* viterbi_state);
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44
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45
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46 /***********************************************************************/
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47 /* viterbi_reinit() */
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48 /* **************** */
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49 /* Re-Initialization of the Viterbi decoder. This function should be */
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50 /* used for re-setting a Viterbi decoder that has already been */
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51 /* initialized. In contrast to viterbi_init(), this reinit function */
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52 /* does not calculate the values of all members of viterbi_state that */
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53 /* do not change during the execution of the Viterbi algorithm. */
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54 /* */
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55 /* output variables: */
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56 /* *viterbi_state initialized state variable of the decoder */
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57 /* */
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58 /***********************************************************************/
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59
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60 void viterbi_reinit(viterbi_t* viterbi_state);
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61
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62
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63 /***********************************************************************/
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64 /* viterbi_exec() */
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65 /* ************** */
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66 /* Execution of the Viterbi decoder */
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67 /* */
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68 /* input variables: */
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69 /* inputword Vector with gross bits */
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70 /* length_input Number of valid gross bits in vector inputword.*/
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71 /* length_input must be an integer multiple of */
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72 /* CHC_RATE */
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73 /* */
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74 /* output variables: */
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75 /* out Vector with the decoded net bits. The net bits */
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76 /* are either 0 or 1. */
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77 /* *num_valid_out_bits Number of valid bits in vector out */
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78 /* */
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79 /* input/output variables: */
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80 /* *viterbi_state State variable of the decoder */
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81 /* */
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82 /***********************************************************************/
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83
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84 void viterbi_exec(WORD16* inputword, WORD16 length_input,
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85 WORD16* out, WORD16* num_valid_out_bits,
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86 viterbi_t* viterbi_state);
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87
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88 #endif