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view src/gpf3/ccd/fdd_ci.c @ 295:1aa8cab15e14
components/frame_na7_db_{fl,ir} created as an experiment
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Sat, 21 Oct 2017 02:50:37 +0000 (2017-10-21) |
parents | c41a534f33c6 |
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/* +----------------------------------------------------------------------------- | Project : CCD | Modul : fdd_ci.c +----------------------------------------------------------------------------- | Copyright 2004 Texas Instruments Deutschland GmbH | All rights reserved. | | This file is confidential and a trade secret of Texas | Instruments Deutschland GmbH | The receipt of or possession of this file does not convey | any rights to reproduce or disclose its contents or to | manufacture, use, or sell anything it may describe, in | whole, or in part, without the specific written consent of | Texas Instruments Deutschland GmbH. +----------------------------------------------------------------------------- | Purpose : Definition of encoding and decoding functions for FDD_CI type +----------------------------------------------------------------------------- */ /* * standard definitions like GLOBAL, UCHAR, ERROR etc. */ #include "typedefs.h" #include "header.h" /* * Types and functions for bit access and manipulation */ #include "ccd_globs.h" /* * Function prototypes of CCD-CCDDATA interface */ #include "ccddata.h" /* * Prototypes of ccd internal functions */ #include "ccd.h" #include "bitfun.h" /* * Declaration of coder/decoder tables */ #include "ccdtable.h" #if !(defined (CCD_TEST)) #include "vsi.h" #endif #ifndef RUN_INT_RAM /* Attention: static data, only used in cdc_fdd_ci_decode */ static const U8 params_bSize[17] = { 0, 10, 19, 28, 36, 44, 52, 60, 67, 74, 81, 88, 95, 102, 109, 116, 122 }; /* +--------------------------------------------------------------------+ | PROJECT : CCD MODULE : cdc_fdd_ci_decode | +--------------------------------------------------------------------+ PURPOSE : Decoding of the FDD_CELL_INFORMATION Field reusing RANGE 1024 format of frequency list information. The IE is preceded by FDD_Indic0(1 bit) and made of the following two IEs: 1) NR_OF_FDD_CELLS(5 bit field), 2) FDD_CELL_INFORMATION information parameters FDD_Indic0 indicates if the parameter value '0000000000' is a member of the set. FDD_CELL_INFORMATION or "Scrambling Codes and Diversity Field" is a bit filed of length p(Number_of_Scrambling_Codes_and_Diversity), whereas the function p(x) is defined by the table below with n = Number_of_Scrambling_Codes_and_Diversity. n p n p n p n p 0 0 5 44 10 81 15 116 1 10 6 52 11 88 16 122 2 19 7 60 12 95 17-31 0 3 28 8 67 13 102 4 36 9 74 14 109 The message is sent from net to MS and a MS supporting enhanced measurements has to understand it. The space this IE takes in the C-structure is made of a counter for the number of decoded parameter and an array of them. */ SHORT cdc_fdd_ci_decode (const ULONG c_ref, const ULONG e_ref, T_CCD_Globs *globs) { U8 ListSize = 0; U16 ListBitLen = 0; ULONG cix_ref, num_prolog_steps, prolog_step_ref; short *w; #ifdef DEBUG_CCD TRACE_CCD (globs, "cdc_fdd_ci_decode()"); #ifdef CCD_SYMBOLS TRACE_CCD (globs, "decoding list %s with range 1024 format", ccddata_get_alias((USHORT) e_ref, 1)); #else TRACE_CCD (globs, "decoding elem %d with range 1024 format", melem[e_ref].elemRef); #endif #endif globs->SeekTLVExt = FALSE; cix_ref = melem[e_ref].calcIdxRef; num_prolog_steps = calcidx[cix_ref].numPrologSteps; prolog_step_ref = calcidx[cix_ref].prologStepRef; /* * if this element have a defined Prolog * we have to process it before decoding the bitstream */ if (num_prolog_steps) { ccd_performOperations (num_prolog_steps, prolog_step_ref, globs); } /* * First read NR_OF_FDD_CELLS (5 bits). */ globs->pstructOffs = melem[e_ref].structOffs;; bf_readBits (5, globs); ListSize = globs->pstruct[globs->pstructOffs++]; /* If n=0 there is nothing to do for this IE. */ if (!ListSize) { return 1; } /* Read the corresponding bit number or suppose the maximum length. */ if (ListSize <= 16) { ListBitLen = params_bSize [ListSize]; } else { /* If n>17 there is nothing to do for this IE. */ return 1; } /* * Bit size for params is bigger than the size of unread bits in the * message buffer. Danger: buffer overwriting! */ if ( ListBitLen > globs->maxBitpos - globs->bitpos) { ccd_recordFault (globs, ERR_ELEM_LEN, BREAK, (USHORT) e_ref, globs->pstruct + globs->pstructOffs); ListBitLen = (U16)(globs->maxBitpos - globs->bitpos); } /* * Use dynamic memory for calculation instead of global memory or stack. */ MALLOC (w, 257 * sizeof (U16)); /* Decode the W-parameter. */ cdc_decode_param (param_1024, w, ListBitLen, globs); /* * Decode and set the remaining channel number according the * algorithm described in GSM 4.08. */ cdc_decode_frequencies (1023, &w[0], 0, FDD_CI_LIST, globs); /* Free the dynamic allocated memory. */ MFREE (w); return 1; } #endif /* !RUN_INT_RAM */ #ifndef RUN_INT_RAM /* +--------------------------------------------------------------------+ | PROJECT : CCD MODULE : cdc_fdd_ci_encode | +--------------------------------------------------------------------+ PURPOSE : Encoding function is not needed, since this message is sent only from net to MS. It could be only useful for testing procedure if there were an encoder function at this place. This will be a future work. */ SHORT cdc_fdd_ci_encode (const ULONG c_ref, const ULONG e_ref, T_CCD_Globs *globs) { #ifdef DEBUG_CCD TRACE_CCD (globs, "cdc_fdd_ci_encode()"); #endif #ifdef TARGET_WIN32 /* TBD */ #endif return 1; } #endif /* !RUN_INT_RAM */