FreeCalypso > hg > fc-tourmaline
view src/g23m-gprs/gmm/gmm_rxf.c @ 268:f2e52cab0a73
abb_inth.c: check all interrupt causes, not just one
The original code used if - else if - else if etc constructs, thus
the first detected interrupt was the only one handled. However,
Iota ITSTATREG is a clear-on-read register, thus if we only handle
the first detected interrupt and skip checking the others, then the
other interrupts will be lost, if more than one interrupt happened
to occur in one ABB interrupt handling cycle - a form of rare race
condition. Change the code to check all interrupts that were read
in this cycle.
author | Mychaela Falconia <falcon@freecalypso.org> |
---|---|
date | Sun, 13 Jun 2021 18:17:53 +0000 |
parents | fa8dc04885d8 |
children |
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/* +----------------------------------------------------------------------------- | Project : GPRS (8441) | Modul : gmm_rxf.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 GMM and implements all | procedures and functions as described in the | SDL-documentation (RX-statemachine) +----------------------------------------------------------------------------- */ #ifndef GMM_RXF_C #define GMM_RXF_C #endif #define ENTITY_GMM /*==== INCLUDES =============================================================*/ #include "typedefs.h" /* to get Condat data types */ #include "vsi.h" /* to get a lot of macros */ #include "macdef.h" #include "gprs.h" #include "gsm.h" /* to get a lot of macros */ #include "ccdapi.h" /* to get CCD API */ #include "cnf_gmm.h" /* to get cnf-definitions */ #include "mon_gmm.h" /* to get mon-definitions */ #include "prim.h" /* to get the definitions of used SAP and directions */ #include "gmm.h" /* to get the global entity definitions */ #include "gmm_txs.h" /* to get some signals */ /*==== CONST ================================================================*/ /*==== LOCAL VARS ===========================================================*/ /*==== PRIVATE FUNCTIONS ====================================================*/ /*==== PUBLIC FUNCTIONS =====================================================*/ /* +------------------------------------------------------------------------------ | Function : rxgmm_init +------------------------------------------------------------------------------ | Description : The function rxgmm_init() .... | | Parameters : void | +------------------------------------------------------------------------------ */ GLOBAL void rxgmm_init ( void ) { TRACE_FUNCTION( "rxgmm_init" ); /* * Initialise service RX with state RX_READY. */ INIT_STATE ( RX, RX_READY ); } /* rxgmm_init() */ /* +------------------------------------------------------------------------------ | Function : rx_gmm_status +------------------------------------------------------------------------------ | Description : The function kern_gmm_status() .... | | Parameters : cause - error cause | +------------------------------------------------------------------------------ */ GLOBAL void rx_gmm_status ( UBYTE cause ) { GMM_TRACE_FUNCTION( "rx_gmm_status" ); { MCAST (gmm_status, GMM_STATUS); gmm_status->gmm_cause.cause_value = cause; vsi_o_ttrace(VSI_CALLER TC_EVENT,"Info: cause: %i", cause); sig_rx_tx_data_req (CURRENT_TLLI, GMM_STATUS); } GMM_RETURN; } /* rx_gmm_status() */