FreeCalypso > hg > fc-tourmaline
view src/g23m-aci/aci/psa_satp.c @ 220:0ed36de51973
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 |
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/* +----------------------------------------------------------------------------- | Project : GSM-PS (6147) | Modul : PSA_SATP +----------------------------------------------------------------------------- | 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 module defines the processing functions for the | primitives send to the protocol stack adapter by the | SIM application toolkit. +----------------------------------------------------------------------------- */ #ifdef SIM_TOOLKIT #ifndef PSA_SATP_C #define PSA_SATP_C #endif #include "aci_all.h" /*==== INCLUDES ===================================================*/ #include "aci_cmh.h" #include "aci_mem.h" #ifdef FAX_AND_DATA #include "aci_fd.h" #endif /* of #ifdef FAX_AND_DATA */ #include "aci.h" #include "psa.h" #include "psa_cc.h" #include "psa_sim.h" /* for simShrdPrm declaration */ #include "psa_sat.h" #include "psa_sms.h" #include "cmh.h" #include "cmh_sat.h" /*==== CONSTANTS ==================================================*/ /*==== TYPES ======================================================*/ /*==== EXPORT =====================================================*/ UBYTE temp ; /*==== VARIABLES ==================================================*/ /*==== FUNCTIONS ==================================================*/ /* +-------------------------------------------------------------------+ | PROJECT : GSM-PS (6147) MODULE : PSA_SATP | | ROUTINE : psa_sim_toolkit_ind | +-------------------------------------------------------------------+ PURPOSE : processes the SIM_TOOLKIT_IND primitive send by SIM. this is an indication that a STK command was received. */ GLOBAL void psa_sim_toolkit_ind ( T_SIM_TOOLKIT_IND *sim_toolkit_ind ) { T_ACI_SAT_TERM_RESP resp_data; TRACE_FUNCTION ("psa_sim_toolkit_ind()"); /* *------------------------------------------------------------------- * update shared parameter *------------------------------------------------------------------- */ satShrdPrm.stkCmdLen = sim_toolkit_ind -> stk_cmd.l_cmd; satShrdPrm.stkCmd = sim_toolkit_ind -> stk_cmd.cmd; TRACE_EVENT_P1("%x", satShrdPrm.stkCmd[44] ); psaSAT_DumpCmd ( &sim_toolkit_ind -> stk_cmd ); /* *------------------------------------------------------------------- * decode SIM toolkit command *------------------------------------------------------------------- */ CCD_START; { UBYTE ccdRet; MCAST( cmd, STK_CMD ); memset( cmd, 0, sizeof( T_STK_CMD )); ccdRet = ccd_decodeMsg (CCDENT_SAT, DOWNLINK, (T_MSGBUF *) &sim_toolkit_ind -> stk_cmd, (UBYTE *) _decodedMsg, STK_CMD); if( ccdRet NEQ ccdOK OR !cmd->v_pas_cmd) { cmhSAT_STKCmdInd(); } else if( cmd->pas_cmd.v_cmd_details AND cmd->pas_cmd.v_dev_ids ) { /* store command details */ satShrdPrm.cmdDet.cmdNr = cmd->pas_cmd.cmd_details.cmd_nr; satShrdPrm.cmdDet.cmdType = cmd->pas_cmd.cmd_details.cmd_typ; satShrdPrm.cmdDet.cmdQlf = cmd->pas_cmd.cmd_details.cmd_qlf; #ifdef TI_PS_FF_AT_P_CMD_CUST if (simShrdPrm.overall_cust_mode EQ (UBYTE)CUST_MODE_BEHAVIOUR_1) { /* ** Customised behaviour for the Cust1 MMI */ switch (cmd->pas_cmd.cmd_details.cmd_typ) { case SAT_CMD_SETUP_CALL: case SAT_CMD_SEND_SMS: case SAT_CMD_SEND_SS: case SAT_CMD_SEND_USSD: if (satShrdPrm.cust1StkCmd != (void *)0) { /* ** The previous command has not been deleted. */ ACI_MFREE(satShrdPrm.cust1StkCmd); satShrdPrm.cust1StkCmd = (void *)0; satShrdPrm.cust1StkCmdLen = 0; } /* ** Allocate memory to store the command */ ACI_MALLOC(satShrdPrm.cust1StkCmd, MAX_STK_CMD); if (satShrdPrm.cust1StkCmd EQ (void *)0) { /* ** Memory allocation has failed, return ME Unable to Process Cmd */ TRACE_EVENT("Memory Allocation Failure"); psaSAT_InitTrmResp( &resp_data ); psaSAT_SendTrmResp( RSLT_ME_UNAB_PROC, &resp_data ); break; } /* ** Save the received data before proceeding */ memset(satShrdPrm.cust1StkCmd, 0, MAX_STK_CMD); /* ** stkCmdLen is the BIT length of the received data, so shift right 3 (divide by 8) ** in order to get the BYTE length */ memcpy(satShrdPrm.cust1StkCmd, satShrdPrm.stkCmd, satShrdPrm.stkCmdLen >> 3); satShrdPrm.cust1StkCmdLen = satShrdPrm.stkCmdLen; /* ** Continue the processing as for normal behaviour, ** special processing will be applied later ** ** No Break! */ /*lint -fallthrough */ case SAT_CMD_EVENT_LIST: /* ** This command is processed normally */ if( !cmd->pas_cmd.v_cmd_prms OR !cmd->pas_cmd.cmd_prms.l_cmd_prms ) { TRACE_EVENT("no parameters in envelope"); psaSAT_dasmMECmd( NULL ); } else psaSAT_dasmMECmd( &cmd->pas_cmd.cmd_prms ); break; case SAT_CMD_REFRESH: /* ** This command is to be forwarded to the MMI, for the user to be given the ** chance to accept or reject the Refresh action. The user response will be ** contained in a SATR Response indication, and we must be prepared to ** process that indication in a different manner. */ satShrdPrm.cust1SimRefreshRespRqd = TRUE; /* ** Forward the command to the MMI */ cmhSAT_STKCmdInd(); break; default: /* ** If the command is handled by the MMI pass it up in a %SATI indication */ if (cmhSAT_IsStkCmdForMmi(cmd->pas_cmd.cmd_details.cmd_typ, cmd->pas_cmd.cmd_details.cmd_qlf) EQ FALSE) { /* ** Otherwise Determine whether the command is handled in the Modem Part */ switch (cmd->pas_cmd.cmd_details.cmd_typ) { case( SAT_CMD_SEND_DTMF ): case( SAT_CMD_RUN_AT ): case( SAT_CMD_LAUNCH_BROWSER ): case (SAT_CMD_PROV_LOC_INFO): #ifdef FF_SAT_E case( SAT_CMD_OPEN_CHANNEL ): #endif /* FF_SAT_E */ if( !cmd->pas_cmd.v_cmd_prms OR !cmd->pas_cmd.cmd_prms.l_cmd_prms ) { TRACE_EVENT("no parameters in envelope"); psaSAT_dasmMECmd( NULL ); } else psaSAT_dasmMECmd( &cmd->pas_cmd.cmd_prms ); break; #ifdef FF_SAT_E /* special handling for CLOSE CHANNEL, no further decoding required. all that is needed can be found in device identities */ case( SAT_CMD_CLOSE_CHANNEL ): cmhSAT_CloseChannel(); break; /* special handling for SEND DATA, no further decoding required. all that is needed can be found in command details */ case( SAT_CMD_SEND_DATA ): cmhSAT_SendData(); break; /* special handling for GET CHANNEL STATUS, no further decoding required */ case( SAT_CMD_GET_CHANNEL_STATUS ): cmhSAT_GetChannelStatus(); break; /* special handling for RECEIVE DATA, no further decoding required */ case( SAT_CMD_RECEIVE_DATA ): cmhSAT_STKUsrNtfy(); break; #endif /* FF_SAT_E */ /* ** If the command is not handled by the Modem Part, return a "Beyond ME ** Capabilities" response to the SIM Entity. */ default: TRACE_EVENT("Unable to handle command"); psaSAT_InitTrmResp( &resp_data ); psaSAT_SendTrmResp( RSLT_ME_CAP, &resp_data ); } } } } else #endif /* TI_PS_FF_AT_P_CMD_CUST */ { /* if command is addressed to ACI */ switch( cmd->pas_cmd.cmd_details.cmd_typ ) { case( SAT_CMD_SETUP_CALL ): case( SAT_CMD_SEND_SS ): case( SAT_CMD_SEND_SMS ): case( SAT_CMD_SEND_USSD ): case( SAT_CMD_SEND_DTMF ): case( SAT_CMD_EVENT_LIST ): case( SAT_CMD_RUN_AT ): case( SAT_CMD_LAUNCH_BROWSER ): case (SAT_CMD_PROV_LOC_INFO): #ifdef FF_SAT_E case( SAT_CMD_OPEN_CHANNEL ): #endif /* FF_SAT_E */ if( !cmd->pas_cmd.v_cmd_prms OR !cmd->pas_cmd.cmd_prms.l_cmd_prms ) { TRACE_EVENT("no parameters in envelope"); psaSAT_dasmMECmd( NULL ); } else psaSAT_dasmMECmd( &cmd->pas_cmd.cmd_prms ); break; #ifdef FF_SAT_E /* special handling for CLOSE CHANNEL, no further decoding required. all that is needed can be found in device identities */ case( SAT_CMD_CLOSE_CHANNEL ): /* Channel Id invalid */ temp = (UBYTE) cmd->pas_cmd.dev_ids.dest_dev; if ( (CHANNEL_ID_1 NEQ (UBYTE)(temp & 0x0f)) OR ( satShrdPrm.chnTb.lnkStat EQ SIM_NO_LINK ) ) { /* Close Channel with an invalid channel identifier */ psaSAT_InitTrmResp( &resp_data ); resp_data.chnStat = FALSE; resp_data.add_content = ADD_BIP_CHANID_NT_VLD; psaSAT_SendTrmResp( RSLT_BEARIND_PERR, &resp_data ); } else { cmhSAT_CloseChannel(); } break; /* special handling for SEND DATA, no further decoding required. all that is needed can be found in command details */ case( SAT_CMD_SEND_DATA ): /* Channel Id invalid */ temp = (UBYTE) cmd->pas_cmd.dev_ids.dest_dev; if ( (CHANNEL_ID_1 NEQ (UBYTE)(temp & 0x0f)) OR ( satShrdPrm.chnTb.lnkStat EQ SIM_NO_LINK ) ) { /* Close Channel with an invalid channel identifier */ psaSAT_InitTrmResp( &resp_data ); resp_data.chnStat = FALSE; resp_data.add_content = ADD_BIP_CHANID_NT_VLD; psaSAT_SendTrmResp( RSLT_BEARIND_PERR, &resp_data ); } else { cmhSAT_SendData(); } break; /* special handling for GET CHANNEL STATUS, no further decoding required */ case( SAT_CMD_GET_CHANNEL_STATUS ): cmhSAT_GetChannelStatus(); break; /* special handling for RECEIVE DATA, no further decoding required */ case( SAT_CMD_RECEIVE_DATA ): cmhSAT_STKUsrNtfy(); break; #endif /* FF_SAT_E */ /* otherwise pass command to user */ default: cmhSAT_STKCmdInd(); } } } else { /* respond with "error, required values are missing" */ TRACE_EVENT("parameters are missing"); psaSAT_InitTrmResp( &resp_data ); psaSAT_SendTrmResp( RSLT_ERR_REQ_VAL, &resp_data ); } } CCD_END; /* *------------------------------------------------------------------- * free the primitive buffer *------------------------------------------------------------------- */ PFREE (sim_toolkit_ind); } /* +-------------------------------------------------------------------+ | PROJECT : GSM-PS (6147) MODULE : PSA_SATP | | ROUTINE : psa_sim_toolkit_cnf | +-------------------------------------------------------------------+ PURPOSE : processes the SIM_TOOLKIT_CNF primitive send by SIM. this is a confirmation to a previous STK command. */ GLOBAL void psa_sim_toolkit_cnf( T_SIM_TOOLKIT_CNF *sim_toolkit_cnf ) { void *p = NULL; BOOL SIM_error = FALSE; BOOL not_allw = FALSE; BOOL allw = FALSE; void *p_allw = NULL; UBYTE *p_v_allw = NULL; void *p_not_allw = NULL; UBYTE *p_v_not_allw = NULL; void *p_allw_mdfy = NULL; UBYTE *p_v_allw_mdfy = NULL; SHORT StructSize = 0; UBYTE DynEnv = '\0'; TRACE_FUNCTION ("psa_sim_toolkit_cnf()"); /* *------------------------------------------------------------------- * update shared parameter *------------------------------------------------------------------- */ satShrdPrm.stkCmdLen = sim_toolkit_cnf -> stk_cmd.l_cmd; satShrdPrm.stkCmd = sim_toolkit_cnf -> stk_cmd.cmd; satShrdPrm.stkError = sim_toolkit_cnf -> cause; psaSAT_DumpCmd ( &sim_toolkit_cnf -> stk_cmd ); /* *------------------------------------------------------------------- * if request was invoked by MMI pass reply to MMI *------------------------------------------------------------------- */ if( sim_toolkit_cnf -> req_id EQ SRQ_MMI ) { cmhSAT_STKCmdCnf(); } /* *------------------------------------------------------------------- * if request was invoked by ACI decode envelope command result *------------------------------------------------------------------- */ else if( sim_toolkit_cnf -> req_id EQ SRQ_ACI ) { if( sim_toolkit_cnf -> stk_cmd.l_cmd EQ 0 OR sim_toolkit_cnf -> cause EQ SIM_CAUSE_SAT_BUSY) { SIM_error = TRUE; switch ( sim_toolkit_cnf -> cause ) { case SIM_CAUSE_OTHER_ERROR: case SIM_CAUSE_SAT_BUSY: case SIM_CAUSE_CARD_REMOVED: case SIM_CAUSE_PIN1_EXPECT: case SIM_CAUSE_PIN1_BLOCKED: case SIM_CAUSE_PUK1_EXPECT: case SIM_CAUSE_PUK1_BLOCKED: case SIM_CAUSE_PIN2_EXPECT: case SIM_CAUSE_PIN2_BLOCKED: case SIM_CAUSE_PUK2_EXPECT: case SIM_CAUSE_PUK2_BLOCKED: /* in case of certain errors, assume not allowed */ not_allw = TRUE; sim_toolkit_cnf -> stk_cmd.cmd[0] = CCR_NOT_ALLW; break; default: /* in case of a positive result without further info, assume allowed not modified */ allw = TRUE; sim_toolkit_cnf -> stk_cmd.cmd[0] = CCR_ALLW_NO_MDFY; break; } sim_toolkit_cnf -> stk_cmd.cmd[1] = 0; /* no extra TLVs */ satShrdPrm.stkCmdLen = 2<<3; /* 2 bytes result */ } else { SIM_error = FALSE; } { CCD_START; { UBYTE ccdRet; MCAST( env, ENV_RES ); MCAST( smc_env, ENV_RES_SMC ); switch( satShrdPrm.SIMCCParm.ccAct ) { case( CC_ACT_CAL ): case( CC_ACT_SS ): case( CC_ACT_USSD ): memset( env, 0, sizeof( T_ENV_RES )); p_v_not_allw = &env->v_ccr_not_allw; p_v_allw = &env->v_ccr_allw; p_v_allw_mdfy = &env->v_ccr_allw_mdfy; p_not_allw = &env->ccr_not_allw; p_allw = &env->ccr_allw; p_allw_mdfy = &env->ccr_allw_mdfy; DynEnv = ENV_RES; break; case( SMC_ACT_MO ): memset( smc_env, 0, sizeof( T_ENV_RES_SMC )); p_v_not_allw = &smc_env->v_smcr_not_allw; p_v_allw = &smc_env->v_smcr_allw; p_v_allw_mdfy = &smc_env->v_smcr_allw_mdfy; p_not_allw = &smc_env->smcr_not_allw; p_allw = &smc_env->smcr_allw; p_allw_mdfy = &smc_env->smcr_allw_mdfy; DynEnv = ENV_RES_SMC; break; } if (SIM_error) { if(p_v_not_allw AND p_v_allw) /* To avoid the NULL poiner usage, 613 lint warning */ { *p_v_not_allw = not_allw; *p_v_allw = allw; } } /* otherwise decode message */ else { ccdRet = ccd_decodeMsg (CCDENT_SAT, DOWNLINK, (T_MSGBUF *) &sim_toolkit_cnf -> stk_cmd, (UBYTE *) _decodedMsg, DynEnv ); if( ccdRet NEQ ccdOK ) { /* in case of a result failure, pretend allowed not modified */ if(p_v_not_allw AND p_v_allw AND p_v_allw_mdfy) /* To avoid the NULL poiner usage, 613 lint warning */ { if( psaSAT_ccdErrChk() NEQ 0 AND (!(*p_v_allw) AND !(*p_v_not_allw) AND !(*p_v_allw_mdfy))) { memset( env, 0, StructSize ); *p_v_allw = TRUE; sim_toolkit_cnf -> stk_cmd.cmd[0] = CCR_ALLW_NO_MDFY; sim_toolkit_cnf -> stk_cmd.cmd[1] = 0; satShrdPrm.stkCmdLen = 2<<3; /* 2 bytes result */ } } } } /* process result */ if(p_v_not_allw AND p_v_allw AND p_v_allw_mdfy) /* To avoid the NULL poiner usage, 613 lint warning */ { if ( *p_v_allw ) p = p_allw; else if( *p_v_not_allw ) p = p_not_allw; else if( *p_v_allw_mdfy ) p = p_allw_mdfy; satShrdPrm.ntfy = USR_NTF_CC_SIM; cmhSAT_STKUsrNtfy(); switch( satShrdPrm.SIMCCParm.ccAct ) { case( CC_ACT_CAL ): if( cmhSAT_ResCalCntrlBySIM( sim_toolkit_cnf -> stk_cmd.cmd, p )) { /* keep primitive for terminal response */ satShrdPrm.stkCnfPrim = sim_toolkit_cnf; CCD_END; return; } break; case( CC_ACT_SS ): if( cmhSAT_ResSSCntrlBySIM( sim_toolkit_cnf -> stk_cmd.cmd, p )) { /* keep primitive for terminal response */ satShrdPrm.stkCnfPrim = sim_toolkit_cnf; CCD_END; return; } break; case( CC_ACT_USSD ): if( cmhSAT_ResUSSDCntrlBySIM( sim_toolkit_cnf -> stk_cmd.cmd, p )) { /* keep primitive for terminal response */ /*satShrdPrm.stkCnfPrim = sim_toolkit_cnf;*/ CCD_END; return; } break; case( SMC_ACT_MO ): if( cmhSAT_ResSMCntrlBySIM( sim_toolkit_cnf -> stk_cmd.cmd, p )) { /* keep primitive for terminal response */ /*satShrdPrm.stkCnfPrim = sim_toolkit_cnf;*/ CCD_END; return; } break; default: TRACE_EVENT("UNEXP CC ACTION IN SAT PARMS"); break; } } } satShrdPrm.SIMCCParm.ccAct = NO_CC_ACT; CCD_END; } } /* *------------------------------------------------------------------- * free the primitive buffer *------------------------------------------------------------------- */ PFREE (sim_toolkit_cnf); } /* +-------------------------------------------------------------------+ | PROJECT : GSM-PS (6147) MODULE : PSA_SATP | | ROUTINE : psa_sim_file_update_ind | +-------------------------------------------------------------------+ PURPOSE : processes the FILE_UPDATE_IND primitive send by SIM. It provides a list of updated EFs. */ GLOBAL void psa_sim_file_update_ind ( T_SIM_FILE_UPDATE_IND *sim_file_update_ind ) { SHORT i; BOOL send_confirm_now=TRUE; TRACE_FUNCTION ("psa_sim_file_update_ind()"); /* *------------------------------------------------------------------- * store the primitive and start processing *------------------------------------------------------------------- */ satShrdPrm.fu_ind = sim_file_update_ind; /* * Broadcast %SIMEF unsolicited event to all interested parties. */ for(i=CMD_SRC_LCL;i<CMD_SRC_MAX;i++) { if (simShrdPrm.SIMEFMode[i] EQ SIMEF_MODE_ON) { /* * As we have reported the EF update, it is not now the * responsibility of this function to send the response * immediately. */ send_confirm_now=FALSE; R_AT(RAT_P_SIMEF,(T_ACI_CMD_SRC)i)(sim_file_update_ind); } } /* * If we didn't report the EF update to anyone we must send * the response now. */ if (send_confirm_now NEQ FALSE) psaSAT_FUConfirm (-1, NOT_PRESENT_16BIT); } #endif /* #ifdef SIM_TOOLKIT */ /*==== EOF =========================================================*/