FreeCalypso > hg > fc-tourmaline

annotate src/cs/layer1/gtt_include/ctm/viterbi.h @ 75:8697f358f505

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backlight rework: Condat light driver accepts levels The present change is another intermediate step on the path toward new FreeCalypso backlight handling. At this intermediate step the Condat light driver accepts 0-255 backlight levels driven by MFW, and puts them out on PWL on Luna development boards. At the same time on C139 it is now possible to turn on the display backlight with or without the keypad bl - the lsb of the 0-255 backlight level controls the keypad bl. MFW presently drives only 0 and 255 backlight levels, thus there is no visible behavioral change yet - but the plan for subsequent stages of this backlight rework is to add a dimmed backlight state (no keypad bl on C139) during active calls.
author Mychaela Falconia <falcon@freecalypso.org>
date Sat, 24 Oct 2020 20:44:04 +0000
parents 4e78acac3d88
children
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4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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1 /*
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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2 *******************************************************************************
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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3 *
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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4 * COPYRIGHT (C) 2000 BY ERICSSON EUROLAB DEUTSCHLAND GmbH
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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5 *
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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6 * The program(s) may be used and/or copied only with the
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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7 * written permission from Ericsson or in accordance
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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8 * with the terms and conditions stipulated in the agreement or
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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9 * contract under which the program(s) have been supplied.
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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10 *
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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11 *******************************************************************************
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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12 *
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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13 * File : viterbi.h
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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14 * Purpose : Header file for viterbi.c
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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15 * Author : Francisco Javier Gil Gomez
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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16 *
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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17 * Revision history
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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18 *
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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19 * $Log: $
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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20 *
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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21 *******************************************************************************
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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22 */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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23
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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24 #ifndef viterbi_h
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25 #define viterbi_h "$Id: $"
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26
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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27 #include <stdio.h>
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28 #include <math.h>
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29
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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30 #include "conv_poly.h" /* definition of viterbi_t */
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31
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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32
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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33 /***********************************************************************/
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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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 /* */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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38 /* output variables: */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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39 /* *viterbi_state initialized state variable of the decoder */
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40 /* */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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41 /***********************************************************************/
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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42
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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43 void viterbi_init(viterbi_t* viterbi_state);
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44
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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45
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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46 /***********************************************************************/
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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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 /* */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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55 /* output variables: */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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56 /* *viterbi_state initialized state variable of the decoder */
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57 /* */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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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
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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62
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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63 /***********************************************************************/
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64 /* viterbi_exec() */
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65 /* ************** */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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66 /* Execution of the Viterbi decoder */
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67 /* */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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68 /* input variables: */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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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 /* */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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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 /* */
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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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
4e78acac3d88 src/{condat,cs,gpf,nucleus}: import from Selenite
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88 #endif