FreeCalypso > hg > fc-magnetite
view src/gpf3/ccd/tdd_ci.c @ 662:8cd8fd15a095
SIM speed enhancement re-enabled and made configurable
TI's original code supported SIM speed enhancement, but Openmoko had it
disabled, and OM's disabling of speed enhancement somehow caused certain
SIM cards to start working which didn't work before (OM's bug #666).
Because our FC community is much smaller in year 2020 than OM's community
was in their day, we are not able to find one of those #666-affected SIMs,
thus the real issue they had encountered remains elusive. Thus our
solution is to re-enable SIM speed enhancement and simply wait for if
and when someone runs into a #666-affected SIM once again. We provide
a SIM_allow_speed_enhancement global variable that allows SIM speed
enhancement to be enabled or disabled per session, and an /etc/SIM_spenh
file in FFS that allows it to enabled or disabled on a non-volatile
basis. SIM speed enhancement is now enabled by default.
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Sun, 24 May 2020 05:02:28 +0000 |
parents | c41a534f33c6 |
children |
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/* +----------------------------------------------------------------------------- | Project : CCD | Modul : tdd_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 TDD_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" /* * Prototypes of ccd internal functions */ #include "ccd.h" #include "bitfun.h" /* * Declaration of coder/decoder tables */ #include "ccdtable.h" /* * Function prototypes of CCD-CCDDATA interface */ #include "ccddata.h" #if !(defined (CCD_TEST)) #include "vsi.h" #endif #ifndef RUN_INT_RAM /* Attention: static data, only used in cdc_tdd_ci_decode */ static const U8 params_bSize[21] = { 0, 9, 17, 25, 32, 39, 46, 53, 59, 65, 71, 77, 83, 89, 95, 101, 106, 111, 116, 121, 126 }; /* +--------------------------------------------------------------------+ | PROJECT : CCD MODULE : cdc_tdd_ci_decode | +--------------------------------------------------------------------+ PURPOSE : Decoding of the TDD_CELL_INFORMATION Field reusing RANGE 511 format of frequency lists (with w0=0.). This field allows to compute a set of 9-bit-long TDD_CELL_INFORMATION aprameters. The IE is preceded by TDD_Indic0(1 bit) and made of the following two IEs: 1) NR_OF_TDD_CELLS(5 bit field), 2) TDD_CELL_INFORMATION information parameters TDD_Indic0 indicates if the parameter value '0000000000' is a member of the set. The total number of bits q of this field depends on the value of the parameter NR_OF_TDD_CELLS = m as follows (with q=0 if m=0): m q m q m q m q m q 0 0 5 39 10 71 15 101 20 126 1 9 6 46 11 77 16 106 21-31 0 2 17 7 53 12 83 17 111 3 25 8 59 13 89 18 116 4 32 9 65 14 95 19 121 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_tdd_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_tdd_ci_decode()"); #ifdef CCD_SYMBOLS TRACE_CCD (globs, "decoding list %s with range 512 format", ccddata_get_alias((USHORT) e_ref, 1)); #else TRACE_CCD (globs, "decoding list %d of range 512 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_TDD_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 <= 20) { ListBitLen = params_bSize [ListSize]; } else { /* If n>20 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. * As a rule for this type w(0) must be 0. */ w[0] = 0; cdc_decode_param (param_512+1, &w[1], ListBitLen, globs); /* * Decode and set the remaining channel number according the * algorithm described in GSM 4.08. */ cdc_decode_frequencies (511, &w[1], 0, TDD_CI_LIST, globs); /* Free the dynamic allocated memory. */ MFREE (w); return 1; } #endif /* !RUN_INT_RAM */ #ifndef RUN_INT_RAM /* +--------------------------------------------------------------------+ | PROJECT : CCD MODULE : cdc_tdd_ci_encode | +--------------------------------------------------------------------+ PURPOSE : Encoding function is not needed, since this message is sent 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_tdd_ci_encode (const ULONG c_ref, const ULONG e_ref, T_CCD_Globs *globs) { #ifdef DEBUG_CCD TRACE_CCD (globs, "cdc_tdd_ci_encode()"); #endif #ifdef TARGET_WIN32 /* TBD */ #endif return 1; } #endif /* !RUN_INT_RAM */