FreeCalypso > hg > fc-tourmaline
view src/g23m-fad/l2r/l2r_mgtf.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 : CSD (8411) | Modul : L2r_mgtf.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 defines the procedures and functions for | the component L2R of the base station +----------------------------------------------------------------------------- */ #ifndef L2R_MGTF_C #define L2R_MGTF_C #endif #define ENTITY_L2R /*==== INCLUDES ===================================================*/ #include <string.h> #include "typedefs.h" #include "pconst.cdg" #include "vsi.h" #include "macdef.h" #include "custom.h" #include "gsm.h" #include "cus_l2r.h" #include "cnf_l2r.h" #include "mon_l2r.h" #include "prim.h" #include "pei.h" #include "tok.h" #include "dti.h" /* functionality of the dti library */ #include "cl_ribu.h" #include "l2r.h" /*==== CONST =======================================================*/ /*==== TYPES =======================================================*/ /*==== VAR EXPORT ==================================================*/ /*==== VAR LOCAL ===================================================*/ /*==== FUNCTIONS ===================================================*/ /* +------------------------------------------------------------------------------ | Function : mgt_init +------------------------------------------------------------------------------ | Description : initialise the l2r data for the management process | | Parameters : - | | | Return : - +------------------------------------------------------------------------------ */ GLOBAL void mgt_init(T_MGT *dmgt) { TRACE_FUNCTION ("mgt_init()"); dmgt->FlowCtrlUsed = FALSE; dmgt->RiBuSize = 0; dmgt->ConnectPrimType = L2R_CONNECT_IND; dmgt->Connected = FALSE; INIT_STATE (CONIND, IW_IDLE); INIT_STATE (BREAK, IW_IDLE); INIT_STATE (MGT, MGT_DETACHED); } /* +------------------------------------------------------------------------------ | Function : mgt_deinit_connection +------------------------------------------------------------------------------ | Description : is called when L2R is disconnected | | Parameters : - | | | Return : - +------------------------------------------------------------------------------ */ GLOBAL void mgt_deinit_connection(void) { TRACE_FUNCTION ("mgt_deinit_connection()"); if (l2r_data->mgt.Connected) { l2r_data->mgt.Connected = FALSE; sig_mgt_dn_disc_req(); sig_mgt_up_disc_req(); } } /* +------------------------------------------------------------------------------ | Function : mgt_checkpar +------------------------------------------------------------------------------ | Description : Checks the parameter values of an l2r_activate_req | | | Parameters : ar - | | | Return : TRUE - | FALSE - +------------------------------------------------------------------------------ */ GLOBAL BOOL mgt_checkpar(T_L2R_ACTIVATE_REQ *ar) { TRACE_FUNCTION ("mgt_checkpar()"); /*lint -e568 -e685 operator > always evaluates to false non-negative quantity is never less than zero */ if ( ar->k_ms_iwf > L2R_K_MS_IWF_MAX OR ar->k_iwf_ms > L2R_K_IWF_MS_MAX OR ar->t2 > L2R_T2_MAX OR ar->n2 < L2R_N2_MIN OR ar->n2 > L2R_N2_MAX OR ar->pt > L2R_PT_MAX OR #ifndef _SIMULATION_ ar->p0 > L2R_P0_MAX OR #endif ar->p1 < L2R_P1_MIN OR ar->p1 > L2R_P1_MAX OR ar->p2 < L2R_P2_MIN OR ar->p2 > L2R_P2_MAX OR ar->bytes_per_prim < L2R_BYTES_PER_PRIM_MIN OR ar->bytes_per_prim > L2R_BYTES_PER_PRIM_MAX OR ar->buffer_size < L2R_BUFFER_SIZE_MIN OR ar->buffer_size > L2R_BUFFER_SIZE_MAX OR ar->t1 > L2R_T1_MAX ) /*lint +e568 +e685 operator > always evaluates to false non-negative quantity is never less than zero */ { return (FALSE); } if ( ar->uil2p NEQ L2R_ISO6429 AND ar->uil2p NEQ L2R_COPnoFlCt ) { return (FALSE); } switch (ar->rate) { case L2R_FULLRATE_14400: if (ar->t1 < L2R_T1_MIN_FULLRATE_14400) { return (FALSE); } break; case L2R_FULLRATE_9600: if (ar->t1 < L2R_T1_MIN_FULLRATE_9600) { return (FALSE); } break; case L2R_FULLRATE_4800: if (ar->t1 < L2R_T1_MIN_FULLRATE_4800) { return (FALSE); } break; case L2R_HALFRATE_4800: if (ar->t1 < L2R_T1_MIN_HALFRATE_4800) { return (FALSE); } break; default: return (FALSE); } /* Finally its really true: all parameters are valid */ return (TRUE); } /* +------------------------------------------------------------------------------ | Function : mgt_init_connection +------------------------------------------------------------------------------ | Description : | | Parameters : indication - | | | Return : - +------------------------------------------------------------------------------ */ GLOBAL void mgt_init_connection(BOOL indication) { T_MGT *dmgt = &l2r_data->mgt; TRACE_FUNCTION ("mgt_init_connection()"); SET_STATE (BREAK, IW_IDLE); sig_mgt_dn_conn_req ( dmgt->FlowCtrlUsed, dmgt->RiBuSize, dmgt->InstID ); if (indication) { dmgt->ConnectPrimType = L2R_CONNECT_IND; } else { dmgt->ConnectPrimType = L2R_CONNECT_CNF; } sig_mgt_up_conn_req ( dmgt->FramesPerPrim, dmgt->FrameSize, dmgt->FlowCtrlUsed, dmgt->RiBuSize, dmgt->InstID ); dmgt->Connected = TRUE; } /* +------------------------------------------------------------------------------ | Function : mgt_send_l2r_error_ind +------------------------------------------------------------------------------ | Description : | | Parameters : cause - | | | Return : - +------------------------------------------------------------------------------ */ GLOBAL void mgt_send_l2r_error_ind(USHORT cause) { PALLOC (l2r_error_ind, L2R_ERROR_IND); TRACE_FUNCTION ("mgt_send_l2r_error_ind()"); l2r_error_ind->cause = cause; PSENDX (CTRL, l2r_error_ind); mgt_deinit_connection(); }