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view src/g23m-aci/aci/cmh_mm.h @ 220:0ed36de51973

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ABB semaphore protection overhaul The ABB semaphone protection logic that came with TCS211 from TI was broken in several ways: * Some semaphore-protected functions were called from Application_Initialize() context. NU_Obtain_Semaphore() called with NU_SUSPEND fails with NU_INVALID_SUSPEND in this context, but the return value wasn't checked, and NU_Release_Semaphore() would be called unconditionally at the end. The latter call would increment the semaphore count past 1, making the semaphore no longer binary and thus no longer effective for resource protection. The fix is to check the return value from NU_Obtain_Semaphore() and skip the NU_Release_Semaphore() call if the semaphore wasn't properly obtained. * Some SPI hardware manipulation was being done before entering the semaphore- protected critical section. The fix is to reorder the code: first obtain the semaphore, then do everything else. * In the corner case of L1/DSP recovery, l1_abb_power_on() would call some non-semaphore-protected ABB & SPI init functions. The fix is to skip those calls in the case of recovery. * A few additional corner cases existed, all of which are fixed by making ABB semaphore protection 100% consistent for all ABB functions and code paths. There is still one remaining problem of priority inversion: suppose a low- priority task calls an ABB function, and some medium-priority task just happens to preempt right in the middle of that semaphore-protected ABB operation. Then the high-priority SPI task is locked out for a non-deterministic time until that medium-priority task finishes its work and goes back to sleep. This priority inversion problem remains outstanding for now.
author Mychaela Falconia <falcon@freecalypso.org>
date Mon, 26 Apr 2021 20:55:25 +0000
parents fa8dc04885d8
children
line wrap: on
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/* 
+----------------------------------------------------------------------------- 
|  Project :  GSM-PS (6147)
|  Modul   :  CMH_MM
+----------------------------------------------------------------------------- 
|  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 :  Definitions for the command handler of the
|             Mobility Mangement
+----------------------------------------------------------------------------- 
*/ 

#ifndef CMH_MM_H
#define CMH_MM_H


/*==== CONSTANTS ==================================================*/
#define PNN_SHORT_NAME_IEI	0x45
#define PNN_LONG_NAME_IEI	  0x43

/*==== TYPES ======================================================*/

/* According to ITE-E 212 MNC shall not be more that 3 digits 
     Thus 0xffff is invalid number and means that rules are same 
     for all Operators in the country*/
#define ALL_MNC 0x7fff 

#define MM_FFS_OPER_DIR "/gsm/cops"
#define MM_FFS_OPER_FILE "/gsm/cops/operimsi"


typedef struct FFSPLMNIMSI
{
  UBYTE mcc[SIZE_MCC];
  UBYTE mnc[SIZE_MNC];
  UBYTE  IMSI[MAX_IMSI-1];
} T_FFSPLMNIMSI;

/* Type for ECCIgnoreTable. See descr for ECCIgnoreTable*/
typedef struct ECCIgnoreRec
{
  SHORT mcc;
  SHORT mnc;
  char *ecc;
} T_ECCIgnoreRec;

/* Type for CPHS ONS reade state*/
typedef enum {
  ONS_READ_NOT_DONE = 0,
  ONS_READING,
  ONS_READ_OVER,
  ONS_READ_FAIL
} T_ONS_READ_STATE;

/*==== PROTOTYPES =================================================*/
EXTERN SHORT            cmhMM_Registered   ( void );
EXTERN SHORT            cmhMM_Deregistered ( void );
EXTERN SHORT            cmhMM_SelNetwork ( USHORT cause );
EXTERN SHORT            cmhMM_NetworkLst ( void );

EXTERN BOOL             cmhMM_FindPLMN     ( T_OPER_ENTRY * plmnDesc, 
                                             SHORT mcc, SHORT mnc, U16 lac, BOOL nw_search );
EXTERN BOOL             cmhMM_getBandSettings( UBYTE *SetBands,
                                               UBYTE *AllowedBands );
EXTERN BOOL             cmhMM_isBandAllowed( UBYTE band,
                                             UBYTE AllowedBands );
EXTERN BOOL             cmhMM_writeSetBand ( UBYTE setband );
EXTERN BOOL             cmhMM_FindNumeric  ( T_OPER_ENTRY * plmnDesc,
                                             const CHAR * numStr );
EXTERN BOOL             cmhMM_FindName     ( T_OPER_ENTRY * plmnDesc,
                                             const CHAR * longStr,
                                                   T_ACI_CPOL_FRMT format );
EXTERN void             cmhMM_CnvrtPLMN2INT( const UBYTE * BCDmcc,
                                             const UBYTE * BCDmnc,
                                                   SHORT * mccBuf,
                                                   SHORT * mncBuf );
EXTERN void             cmhMM_CnvrtINT2PLMN(       SHORT INTmcc,
                                                   SHORT INTmnc,
                                                   UBYTE * mccBuf,
                                                   UBYTE * mncBuf );
EXTERN T_ACI_CREG_STAT  cmhMM_GetNregCREGStat( void );
EXTERN T_ACI_CME_ERR    cmhMM_GetNregCMEStat ( void );
EXTERN USHORT           cmhMM_GetOperLstLen  ( void );
EXTERN void             cmhMM_CnvrtTrmPCMOpNam( T_OPER_ENTRY *plmnDesc, void *pPCMBuf );
EXTERN void             cmhMM_Ntfy_NtwRegistrationStatus( T_ACI_CREG_STAT creg );
EXTERN SHORT            cmhMM_CipheringInd  ( UBYTE ciph );
EXTERN BOOL             cmhMM_OpCheckName ();  /* EONS function */
EXTERN void             cmhMM_OpCheckList ();/* EONS function */
EXTERN BOOL             cmhMM_OpReadName ( UBYTE rec_num);/* EONS function */
EXTERN void             cmhMM_OpReadNameCb ( SHORT table_id);/* EONS function */
EXTERN void             cmhMM_OpSetPNNLst(); /* EONS function */
EXTERN void             cmhMM_OpExtractNameCB ( SHORT table_id); /* EONS function */
EXTERN BOOL             cmhMM_OpUpdateName (); /* EONS function */
EXTERN void             cmhMM_GetCmerSettings (T_ACI_CMD_SRC srcId, T_ACI_MM_CMER_VAL_TYPE *sCmerSettings );
EXTERN BOOL             cmhMM_ChkIgnoreECC(CHAR *dialStr);

EXTERN T_ACI_RETURN cmhMM_OperatorSelect(T_ACI_CMD_SRC srcId,
                                   T_ACI_NRG_RGMD regMode,
                                    T_ACI_NRG_SVMD srvMode,
                                    T_ACI_NRG_FRMT oprFrmt,
                                    CHAR          *opr);
                                    
EXTERN void cmhMM_OperatorQuery( T_ACI_CMD_SRC srcId,
                                    T_ACI_COPS_FRMT format,
                                    CHAR           *oper);

EXTERN BOOL  cmhMM_OperatorStoreInFFS(UBYTE* mcc, UBYTE* mnc, UBYTE* IMSI);
EXTERN BOOL cmhMM_OperatorReadFromFFS(UBYTE* mcc, UBYTE* mnc, UBYTE* IMSI);




EXTERN BOOL             cmhMM_GetActingHPLMN(SHORT * mccBuf, SHORT * mncBuf);
EXTERN BOOL             cmhMM_ONSReadName ();//EONS function
EXTERN void             cmhMM_ONSReadNameCb ( SHORT table_id);//EONS function
EXTERN void             cmhMM_Reset_ONSDesc ();

/*==== EXPORT =====================================================*/

#ifdef CMH_MMF_C

GLOBAL T_ENT_STAT mmEntStat;
GLOBAL BOOL regReqPnd = FALSE;
#else

EXTERN T_ENT_STAT mmEntStat;
EXTERN BOOL regReqPnd;

#endif /* CMH_MMF_C */
#endif /* CMH_MM_H */

/*==== EOF =======================================================*/