FreeCalypso > hg > fc-magnetite
view src/gpf3/ccd/s_padding.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 : | Modul : s_padding.c +----------------------------------------------------------------------------- | Copyright 2002 Texas Instruments Berlin, AG | All rights reserved. | | This file is confidential and a trade secret of Texas | Instruments Berlin, AG | 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 Berlin, AG. +----------------------------------------------------------------------------- | Purpose : Definition of encoding and decoding functions for S_PADDING elements +----------------------------------------------------------------------------- */ /* * standard definitions like GLOBAL, UCHAR, ERROR etc. */ #include "typedefs.h" #include "header.h" /* * Prototypes of ccd (USE_DRIVER EQ undef) for prototypes only * look at ccdapi.h */ #undef USE_DRIVER #include "ccdapi.h" /* * Types and functions for bit access and manipulation */ #include "ccd_globs.h" #include "bitfun.h" /* * Prototypes of ccd internal functions */ #include "ccd.h" /* * Declaration of coder/decoder tables */ #include "ccdtable.h" #include "ccddata.h" #ifndef RUN_FLASH /* +--------------------------------------------------------------------+ | PROJECT : CCD (6144) MODULE : CDC_GSM | | STATE : code ROUTINE : cdc_padd_decode | +--------------------------------------------------------------------+ PURPOSE : Decoding of the GSM Type CSN1 spare padding. This function does not evaluate the encoded bits, since their content is irrelevant. */ SHORT cdc_padd_decode (const ULONG c_ref, const ULONG e_ref, T_CCD_Globs *globs) { USHORT cixRef; #ifdef DEBUG_CCD TRACE_CCD (globs, "cdc_padd_decode()"); #endif /* * Do not decode padding bits. They are not relevant. * Just adjust the position pointer in the bit stream buffer. * Either to the next octet boundary or to the message end, if necessary. */ bf_incBitpos (8-(globs->bitpos & 7), globs); /* First assume padding bits up to an octet boundary. In this case * message extension could be made of T, TV or TLV types. */ globs->SeekTLVExt = TRUE; cixRef = melem[e_ref].calcIdxRef; if (calcidx[cixRef].numPrologSteps > 0) { USHORT msgEnd = (USHORT) calc[calcidx[cixRef].prologStepRef].operand * 8; if (msgEnd) { msgEnd += globs->bitoffs; msgEnd = (USHORT)MINIMUM(globs->maxBitpos, msgEnd); bf_setBitpos (msgEnd, globs); /* * Padding bytes exclude the presence of message extension. */ globs->SeekTLVExt = FALSE; } } return 1; } #endif /* !RUN_FLASH */ #ifndef RUN_FLASH /* +--------------------------------------------------------------------+ | PROJECT : CCD (6144) MODULE : CDC_GSM | | STATE : code ROUTINE : cdc_padd_encode | +--------------------------------------------------------------------+ PURPOSE : Encoding of the GSM Type CSN1 spare padding. Supported padding values are 0x00 and 0x2B, if first prolog step is a value msg_len, padding is done until globs->bitpos is msg_len*8, else until octet boundary */ SHORT cdc_padd_encode (const ULONG c_ref, const ULONG e_ref, T_CCD_Globs *globs) { UBYTE padd_bit = 0; USHORT cixRef; #ifdef DEBUG_CCD TRACE_CCD (globs, "cdc_padd_encode()"); #endif cixRef = melem[e_ref].calcIdxRef; /* * if this element is conditional, check the condition */ if (calcidx[cixRef].numCondCalcs NEQ 0 AND ! ccd_conditionOK (e_ref, globs)) return 1; if (melem[e_ref].elemType EQ 'S' AND spare[melem[e_ref].elemRef].bSize EQ 8) { UBYTE spareVal = (UBYTE)(spare[melem[e_ref].elemRef].value); /* * Element is a SPARE of length 8. */ while (globs->bitpos % 8 NEQ 0) { switch(spareVal) { case 0: break; case 0x2B: padd_bit = (UBYTE)GET_HL(0); break; default: ccd_setError (globs, ERR_INTERNAL_ERROR, BREAK, (USHORT) (globs->bitpos), (USHORT) -1); } bf_writeBit (padd_bit, globs); } if (calcidx[cixRef].numPrologSteps > 0) { if (calc[calcidx[cixRef].prologStepRef].operation NEQ 'P') ccd_setError (globs, ERR_INTERNAL_ERROR, BREAK, (USHORT) -1); else { USHORT msgLen = (USHORT)(calc[calcidx[cixRef].prologStepRef].operand * 8); while (globs->bitpos - globs->bitoffs < msgLen ) { bf_codeLongNumber (8, (ULONG) spareVal, globs); } } } } else { ccd_setError (globs, ERR_INVALID_TYPE, BREAK, (USHORT) (globs->bitpos), (USHORT) -1); } return 1; } #endif /* !RUN_FLASH */