FreeCalypso > hg > fc-tourmaline
view src/cs/layer1/gtt_include/l1gtt_varex.h @ 303:f76436d19a7a default tip
!GPRS config: fix long-standing AT+COPS chance hanging bug
There has been a long-standing bug in FreeCalypso going back years:
sometimes in the AT command bring-up sequence of an ACI-only MS,
the AT+COPS command would produce only a power scan followed by
cessation of protocol stack activity (only L1 ADC traces), instead
of the expected network search sequence. This behaviour was seen
in different FC firmware versions going back to Citrine, and seemed
to follow some law of chance, not reliably repeatable.
This bug has been tracked down and found to be specific to !GPRS
configuration, stemming from our TCS2/TCS3 hybrid and reconstruction
of !GPRS support that was bitrotten in TCS3.2/LoCosto version.
ACI module psa_mms.c, needed only for !GPRS, was missing in the TCS3
version and had to be pulled from TCS2 - but as it turns out,
there is a new field in the MMR_REG_REQ primitive that needs to be
set correctly, and that psa_mms.c module is the place where this
initialization needed to be added.
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Thu, 08 Jun 2023 08:23:37 +0000 |
parents | 4e78acac3d88 |
children |
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/************* Revision Controle System Header ************* * GSM Layer 1 software * L1GTT_VAREX.H * * Filename %M% * Copyright 2003 (C) Texas Instruments * ************* Revision Controle System Header *************/ #if (L1_GTT == 1) #ifdef L1GTT_ASYNC_C // Every BUFFER are associated with a variable T_TTY_FIFO_struct *TTY_FIFO_1; T_TTY_FIFO_struct *TTY_FIFO_2; T_TTY_FIFO_struct *TTY_FIFO_3; T_TTY_FIFO_struct *TTY_FIFO_4; /* state variables for CTM transmitter and CTM receiver,respectively */ tx_state_t tx_state; rx_state_t rx_state; /* State variables for the Baudot decoder and encoder,respectively. */ baudot_decode_state_t baudot_decode_state; baudot_encode_state_t baudot_encode_state; /* Define fifo state variables */ WORD16 baudotOutTTYCodeFifoLength = 50; fifo_state_t baudotOutTTYCodeFifoState; fifo_state_t signalFifoState; fifo_state_t ctmOutTTYCodeFifoState; fifo_state_t baudotToCtmFifoState; fifo_state_t ctmToBaudotFifoState; WORD16 cntFramesSinceBurstInit = 0; WORD16 cntSamplesSinceLastBypassFromCTM = 0; WORD16 cntTransmittedEnquiries = 0; BOOL ctmFromFarEndDetected = false; BOOL ctmCharacterTransmitted = false; BOOL enquiryFromFarEndDetected = false; BOOL ctmTransmitterIsIdle = true; BOOL earlyMutingRequired = false; BOOL transparentMode = false; /* Used to keep track of time since last Enquiry burst. * Currently 1 cycle == 120 ms */ WORD16 cyclesSinceLastEnquiryBurst = 0; /* Stores the output from baudot encoder in downlink */ fifo_state_t baudotCodeFifoState; /* Store the output from CTM transmitter in uplink */ fifo_state_t ctmCodeULFifoState; WORD16 cntSamplesSinceEnquiryDetected = 0; /* Shared global buffers between L1S and l1gtt_main_processing. */ fifo_state_t global_ul; fifo_state_t global_dl; int init_complete = 0; /* Array containing silence data for muting uplink bypass path. */ WORD16 silence_data[]={0,0,0,0,0,0,0,0}; /* Global flag to indicate that uplink bypass path is to be muted */ int begin_ul_bypasspath_mute = 0; /* Counter for keeping track of amount of silence written to DSP task 2. */ int silence_pad_time = 0; #else extern T_TTY_FIFO_struct *TTY_FIFO_1; extern T_TTY_FIFO_struct *TTY_FIFO_2; extern T_TTY_FIFO_struct *TTY_FIFO_3; extern T_TTY_FIFO_struct *TTY_FIFO_4; extern tx_state_t tx_state; extern rx_state_t rx_state; extern baudot_decode_state_t baudot_decode_state; extern baudot_encode_state_t baudot_encode_state; extern WORD16 baudotOutTTYCodeFifoLength; extern fifo_state_t baudotOutTTYCodeFifoState; extern fifo_state_t signalFifoState; extern fifo_state_t ctmOutTTYCodeFifoState; extern fifo_state_t baudotToCtmFifoState; extern fifo_state_t ctmToBaudotFifoState; extern WORD16 cntFramesSinceBurstInit; extern WORD16 cntSamplesSinceLastBypassFromCTM; extern WORD16 cntTransmittedEnquiries; extern BOOL ctmFromFarEndDetected; extern BOOL ctmCharacterTransmitted; extern BOOL enquiryFromFarEndDetected; extern BOOL ctmTransmitterIsIdle; extern BOOL earlyMutingRequired; extern BOOL transparentMode; extern WORD16 cyclesSinceLastEnquiryBurst; extern fifo_state_t baudotCodeFifoState; extern fifo_state_t ctmCodeULFifoState; extern WORD16 cntSamplesSinceEnquiryDetected; extern fifo_state_t global_ul; extern fifo_state_t global_dl; extern int init_complete; extern WORD16 silence_data[]; extern int begin_ul_bypasspath_mute; extern int silence_pad_time; #endif #endif