FreeCalypso > hg > fc-tourmaline
view src/g23m-gprs/sndcp/sndcp_suf.c @ 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 | fa8dc04885d8 |
children |
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/* +----------------------------------------------------------------------------- | Project : GPRS (8441) | Modul : sndcp_suf.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 : This modul is part of the entity SNDCP and implements all | procedures and functions as described in the | SDL-documentation (SU-statemachine) +----------------------------------------------------------------------------- */ /*---- HISTORY --------------------------------------------------------------*/ #define ENTITY_SNDCP /*==== INCLUDES =============================================================*/ #include "typedefs.h" /* to get Condat data types */ #include "vsi.h" /* to get a lot of macros */ #include "macdef.h" #include "prim.h" /* to get the definitions of used SAP and directions */ #include "dti.h" #include "sndcp.h" /* to get the global entity definitions */ #include "sndcp_f.h" /* to get the functions to access the global arrays*/ #include "sndcp_nus.h" /* to get signals to service nu */ #include "sndcp_cias.h" /* to get signals to service cia */ /*==== CONST ================================================================*/ /*==== LOCAL VARS ===========================================================*/ /*==== PRIVATE FUNCTIONS ====================================================*/ /*==== PUBLIC FUNCTIONS =====================================================*/ #ifdef _SNDCP_DTI_2_ /* +------------------------------------------------------------------------------ | Function : su_get_nsapi +------------------------------------------------------------------------------ | Description : finde the affected nsapi in sn-PDU. | | Parameters : ll_unitdata_req* | Returns : the nsapi | +------------------------------------------------------------------------------ */ GLOBAL U8 su_get_nsapi (T_LL_UNITDESC_REQ* ll_unitdesc_req) { T_desc3* desc3 = NULL; U8 * sndcp_header = NULL; /* Get the descriptor describing the memory area with the sndcp header */ desc3 = (T_desc3*)ll_unitdesc_req->desc_list3.first; sndcp_header = (U8*)desc3->buffer; TRACE_FUNCTION( "su_get_nsapi" ); return (*(sndcp_header + ENCODE_OFFSET_BYTE)) & 0xf; } /* sua_get_nsapi() */ #else /* _SNDCP_DTI_2_ */ /* +------------------------------------------------------------------------------ | Function : su_get_nsapi +------------------------------------------------------------------------------ | Description : finde the affected nsapi in sn-PDU. | | Parameters : ll_unitdata_req* | Returns : the nsapi | +------------------------------------------------------------------------------ */ GLOBAL UBYTE su_get_nsapi (T_LL_UNITDATA_REQ* ll_unitdata_req) { USHORT octet_offset = (ll_unitdata_req->sdu.o_buf) >> 3; TRACE_FUNCTION( "su_get_nsapi" ); return ll_unitdata_req->sdu.buf[octet_offset] & 0xf; } /* su_get_nsapi() */ #endif /* _SNDCP_DTI_2_ */ /* +------------------------------------------------------------------------------ | Function : su_init +------------------------------------------------------------------------------ | Description : The function su_init() .... | | Parameters : | +------------------------------------------------------------------------------ */ GLOBAL void su_init (void) { TRACE_FUNCTION( "su_init" ); /* * Not initialized: * Members of sn_unitdata_q are not set to NULL. * Members of npdu_number_q are not set to 0. * Members of ll_unitdata_q are not set to NULL. */ sndcp_data->su = & sndcp_data->su_base[0]; INIT_STATE(SU_0, SU_LLC_NOT_RECEPTIVE); #ifdef SNDCP_2to1 sndcp_data->su->sapi = PS_SAPI_3; #else sndcp_data->su->sapi = LL_SAPI_3; #endif /*SNDCP_2to1*/ sndcp_data->su = & sndcp_data->su_base[1]; INIT_STATE(SU_1, SU_LLC_NOT_RECEPTIVE); #ifdef SNDCP_2to1 sndcp_data->su->sapi = PS_SAPI_5; #else sndcp_data->su->sapi = LL_SAPI_5; #endif /*SNDCP_2to1*/ sndcp_data->su = & sndcp_data->su_base[2]; INIT_STATE(SU_2, SU_LLC_NOT_RECEPTIVE); #ifdef SNDCP_2to1 sndcp_data->su->sapi = PS_SAPI_9; #else sndcp_data->su->sapi = LL_SAPI_9; #endif /*SNDCP_2to1*/ sndcp_data->su = & sndcp_data->su_base[3]; INIT_STATE(SU_3, SU_LLC_NOT_RECEPTIVE); #ifdef SNDCP_2to1 sndcp_data->su->sapi = PS_SAPI_11; #else sndcp_data->su->sapi = LL_SAPI_11; #endif /*SNDCP_2to1*/ { UBYTE sapi_index = 0; for (sapi_index = 0; sapi_index < SNDCP_NUMBER_OF_SAPIS; sapi_index++) { sndcp_data->su = & sndcp_data->su_base[sapi_index]; sndcp_data->su->n201_u = N201_U_DEFAULT; sndcp_data->su->sn_unitdata_q_read = 0; sndcp_data->su->sn_unitdata_q_write = 0; #ifdef _SNDCP_DTI_2_ sndcp_data->su->ll_unitdesc_q_read = 0; sndcp_data->su->ll_unitdesc_q_write = 0; #else /* _SNDCP_DTI_2_ */ sndcp_data->su->ll_unitdata_q_read = 0; sndcp_data->su->ll_unitdata_q_write = 0; #endif /* _SNDCP_DTI_2_ */ sndcp_data->su->cia_state = CIA_IDLE; } } } /* su_init() */ /* +------------------------------------------------------------------------------ | Function : su_next_sn_unitdata_req +------------------------------------------------------------------------------ | Description : If queue with sn_unitdata_req is | not empty, send SIG_SU_CIA_DATA_REQ with next prim from sn_unitdata_req queue | | Parameters : sapi | Pre : cia_state == CIA_IDLE | +------------------------------------------------------------------------------ */ GLOBAL void su_next_sn_unitdata_req (UBYTE sapi) { TRACE_FUNCTION( "su_next_sn_unitdata_req" ); if (sndcp_data->su->sn_unitdata_q_write != sndcp_data->su->sn_unitdata_q_read) { /* * Get sn_unitdata_req from queue. */ T_SN_UNITDATA_REQ* sn_unitdata_req = sndcp_data->su->sn_unitdata_q[sndcp_data->su->sn_unitdata_q_read]; /* * Get npdu_number from queue. */ USHORT npdu_num = sndcp_data->su->npdu_number_q[sndcp_data->su->sn_unitdata_q_read]; UBYTE nsapi = sn_unitdata_req->nsapi; sndcp_data->su->sn_unitdata_q[sndcp_data->su->sn_unitdata_q_read] = NULL; sndcp_data->su->sn_unitdata_q_read = (sndcp_data->su->sn_unitdata_q_read + 1 ) % SN_UNITDATA_Q_LEN; /* * Cia is now busy. Send data. */ sndcp_data->su->cia_state = CIA_BUSY; sig_su_cia_cia_comp_req(sn_unitdata_req, npdu_num, nsapi, sapi); } else if (sndcp_data->su->cia_state == CIA_IDLE) { UBYTE nsapi = 0; for (nsapi = 0; nsapi < SNDCP_NUMBER_OF_NSAPIS; nsapi++) { UBYTE used_sapi = 0; BOOL used = FALSE; sndcp_is_nsapi_used(nsapi, &used); if (used) { sndcp_get_nsapi_sapi(nsapi, &used_sapi); if (used_sapi == sapi) { sig_su_nu_ready_ind(nsapi); } } } } } /* su_next_sn_unitdata_req() */