164064216a8433360745f69edddce19a606659163The Android Open Source Project/** \file fsm.c 264064216a8433360745f69edddce19a606659163The Android Open Source Project * \brief finite state machine source code 364064216a8433360745f69edddce19a606659163The Android Open Source Project * 464064216a8433360745f69edddce19a606659163The Android Open Source Project * \see fsm.h 564064216a8433360745f69edddce19a606659163The Android Open Source Project */ 664064216a8433360745f69edddce19a606659163The Android Open Source Project 764064216a8433360745f69edddce19a606659163The Android Open Source Project/**************************************************************************** 864064216a8433360745f69edddce19a606659163The Android Open Source Project**+-----------------------------------------------------------------------+** 964064216a8433360745f69edddce19a606659163The Android Open Source Project**| |** 1064064216a8433360745f69edddce19a606659163The Android Open Source Project**| Copyright(c) 1998 - 2008 Texas Instruments. All rights reserved. |** 1164064216a8433360745f69edddce19a606659163The Android Open Source Project**| All rights reserved. |** 1264064216a8433360745f69edddce19a606659163The Android Open Source Project**| |** 1364064216a8433360745f69edddce19a606659163The Android Open Source Project**| Redistribution and use in source and binary forms, with or without |** 1464064216a8433360745f69edddce19a606659163The Android Open Source Project**| modification, are permitted provided that the following conditions |** 1564064216a8433360745f69edddce19a606659163The Android Open Source Project**| are met: |** 1664064216a8433360745f69edddce19a606659163The Android Open Source Project**| |** 1764064216a8433360745f69edddce19a606659163The Android Open Source Project**| * Redistributions of source code must retain the above copyright |** 1864064216a8433360745f69edddce19a606659163The Android Open Source Project**| notice, this list of conditions and the following disclaimer. |** 1964064216a8433360745f69edddce19a606659163The Android Open Source Project**| * Redistributions in binary form must reproduce the above copyright |** 2064064216a8433360745f69edddce19a606659163The Android Open Source Project**| notice, this list of conditions and the following disclaimer in |** 2164064216a8433360745f69edddce19a606659163The Android Open Source Project**| the documentation and/or other materials provided with the |** 2264064216a8433360745f69edddce19a606659163The Android Open Source Project**| distribution. |** 2364064216a8433360745f69edddce19a606659163The Android Open Source Project**| * Neither the name Texas Instruments nor the names of its |** 2464064216a8433360745f69edddce19a606659163The Android Open Source Project**| contributors may be used to endorse or promote products derived |** 2564064216a8433360745f69edddce19a606659163The Android Open Source Project**| from this software without specific prior written permission. |** 2664064216a8433360745f69edddce19a606659163The Android Open Source Project**| |** 2764064216a8433360745f69edddce19a606659163The Android Open Source Project**| THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |** 2864064216a8433360745f69edddce19a606659163The Android Open Source Project**| "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |** 2964064216a8433360745f69edddce19a606659163The Android Open Source Project**| LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |** 3064064216a8433360745f69edddce19a606659163The Android Open Source Project**| A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |** 3164064216a8433360745f69edddce19a606659163The Android Open Source Project**| OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |** 3264064216a8433360745f69edddce19a606659163The Android Open Source Project**| SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |** 3364064216a8433360745f69edddce19a606659163The Android Open Source Project**| LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |** 3464064216a8433360745f69edddce19a606659163The Android Open Source Project**| DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |** 3564064216a8433360745f69edddce19a606659163The Android Open Source Project**| THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |** 3664064216a8433360745f69edddce19a606659163The Android Open Source Project**| (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |** 3764064216a8433360745f69edddce19a606659163The Android Open Source Project**| OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |** 3864064216a8433360745f69edddce19a606659163The Android Open Source Project**| |** 3964064216a8433360745f69edddce19a606659163The Android Open Source Project**+-----------------------------------------------------------------------+** 4064064216a8433360745f69edddce19a606659163The Android Open Source Project****************************************************************************/ 4164064216a8433360745f69edddce19a606659163The Android Open Source Project 4264064216a8433360745f69edddce19a606659163The Android Open Source Project/***************************************************************************/ 4364064216a8433360745f69edddce19a606659163The Android Open Source Project/* */ 4464064216a8433360745f69edddce19a606659163The Android Open Source Project/* MODULE: fsm.c */ 4564064216a8433360745f69edddce19a606659163The Android Open Source Project/* PURPOSE: Finite State Machine source code */ 4664064216a8433360745f69edddce19a606659163The Android Open Source Project/* */ 4764064216a8433360745f69edddce19a606659163The Android Open Source Project/***************************************************************************/ 4864064216a8433360745f69edddce19a606659163The Android Open Source Project 4964064216a8433360745f69edddce19a606659163The Android Open Source Project#include "osTIType.h" 5064064216a8433360745f69edddce19a606659163The Android Open Source Project#include "osApi.h" 5164064216a8433360745f69edddce19a606659163The Android Open Source Project#include "utils.h" 5264064216a8433360745f69edddce19a606659163The Android Open Source Project#include "report.h" 5364064216a8433360745f69edddce19a606659163The Android Open Source Project#include "fsm.h" 5464064216a8433360745f69edddce19a606659163The Android Open Source Project 5564064216a8433360745f69edddce19a606659163The Android Open Source Project/* Constants */ 5664064216a8433360745f69edddce19a606659163The Android Open Source Project 5764064216a8433360745f69edddce19a606659163The Android Open Source Project/* Enumerations */ 5864064216a8433360745f69edddce19a606659163The Android Open Source Project 5964064216a8433360745f69edddce19a606659163The Android Open Source Project/* Typedefs */ 6064064216a8433360745f69edddce19a606659163The Android Open Source Project 6164064216a8433360745f69edddce19a606659163The Android Open Source Project/* Structures */ 6264064216a8433360745f69edddce19a606659163The Android Open Source Project 6364064216a8433360745f69edddce19a606659163The Android Open Source Project/* External data definitions */ 6464064216a8433360745f69edddce19a606659163The Android Open Source Project 6564064216a8433360745f69edddce19a606659163The Android Open Source Project/* External functions definitions */ 6664064216a8433360745f69edddce19a606659163The Android Open Source Project 6764064216a8433360745f69edddce19a606659163The Android Open Source Project/* Function prototypes */ 6864064216a8433360745f69edddce19a606659163The Android Open Source Project 6964064216a8433360745f69edddce19a606659163The Android Open Source Project/** 7064064216a8433360745f69edddce19a606659163The Android Open Source Project* 7164064216a8433360745f69edddce19a606659163The Android Open Source Project* fsm_Init - Initialize the FSM structure 7264064216a8433360745f69edddce19a606659163The Android Open Source Project* 7364064216a8433360745f69edddce19a606659163The Android Open Source Project* \b Description: 7464064216a8433360745f69edddce19a606659163The Android Open Source Project* 7564064216a8433360745f69edddce19a606659163The Android Open Source Project* Init The FSM structure. If matrix argument is NULL, allocate memory for 7664064216a8433360745f69edddce19a606659163The Android Open Source Project* new matrix. 7764064216a8433360745f69edddce19a606659163The Android Open Source Project* 7864064216a8433360745f69edddce19a606659163The Android Open Source Project* \b ARGS: 7964064216a8433360745f69edddce19a606659163The Android Open Source Project* 8064064216a8433360745f69edddce19a606659163The Android Open Source Project* O - pFsm - the generated FSM module \n 8164064216a8433360745f69edddce19a606659163The Android Open Source Project* I - noOfStates - Number of states in the module \n 8264064216a8433360745f69edddce19a606659163The Android Open Source Project* I - noOfStates - Number of events in the module \n 8364064216a8433360745f69edddce19a606659163The Android Open Source Project* I/O - matrix - the state event matrix 8464064216a8433360745f69edddce19a606659163The Android Open Source Project* I - transFunc - Transition finction for the state machine \n 8564064216a8433360745f69edddce19a606659163The Android Open Source Project* 8664064216a8433360745f69edddce19a606659163The Android Open Source Project* \b RETURNS: 8764064216a8433360745f69edddce19a606659163The Android Open Source Project* 8864064216a8433360745f69edddce19a606659163The Android Open Source Project* OK on success, NOK on failure 8964064216a8433360745f69edddce19a606659163The Android Open Source Project* 9064064216a8433360745f69edddce19a606659163The Android Open Source Project* \sa fsm_Event 9164064216a8433360745f69edddce19a606659163The Android Open Source Project*/ 9264064216a8433360745f69edddce19a606659163The Android Open Source ProjectTI_STATUS fsm_Create(TI_HANDLE hOs, 9364064216a8433360745f69edddce19a606659163The Android Open Source Project fsm_stateMachine_t **pFsm, 9464064216a8433360745f69edddce19a606659163The Android Open Source Project UINT8 MaxNoOfStates, 9564064216a8433360745f69edddce19a606659163The Android Open Source Project UINT8 MaxNoOfEvents) 9664064216a8433360745f69edddce19a606659163The Android Open Source Project{ 9764064216a8433360745f69edddce19a606659163The Android Open Source Project /* check for perliminary conditions */ 9864064216a8433360745f69edddce19a606659163The Android Open Source Project if ((pFsm == NULL) || (MaxNoOfStates == 0) || (MaxNoOfEvents == 0)) 9964064216a8433360745f69edddce19a606659163The Android Open Source Project { 10064064216a8433360745f69edddce19a606659163The Android Open Source Project return NOK; 10164064216a8433360745f69edddce19a606659163The Android Open Source Project } 10264064216a8433360745f69edddce19a606659163The Android Open Source Project 10364064216a8433360745f69edddce19a606659163The Android Open Source Project /* allocate memory for FSM context */ 10464064216a8433360745f69edddce19a606659163The Android Open Source Project *pFsm = (fsm_stateMachine_t *)os_memoryAlloc(hOs, sizeof(fsm_stateMachine_t)); 10564064216a8433360745f69edddce19a606659163The Android Open Source Project if (*pFsm == NULL) 10664064216a8433360745f69edddce19a606659163The Android Open Source Project { 10764064216a8433360745f69edddce19a606659163The Android Open Source Project return NOK; 10864064216a8433360745f69edddce19a606659163The Android Open Source Project } 10964064216a8433360745f69edddce19a606659163The Android Open Source Project os_memoryZero(hOs, (*pFsm), sizeof(fsm_stateMachine_t)); /* Dm: Fix */ 11064064216a8433360745f69edddce19a606659163The Android Open Source Project 11164064216a8433360745f69edddce19a606659163The Android Open Source Project /* allocate memory for FSM matrix */ 11264064216a8433360745f69edddce19a606659163The Android Open Source Project (*pFsm)->stateEventMatrix = (fsm_Matrix_t)os_memoryAlloc(hOs, MaxNoOfStates * MaxNoOfEvents * sizeof(fsm_actionCell_t)); 11364064216a8433360745f69edddce19a606659163The Android Open Source Project if ((*pFsm)->stateEventMatrix == NULL) 11464064216a8433360745f69edddce19a606659163The Android Open Source Project { 11564064216a8433360745f69edddce19a606659163The Android Open Source Project os_memoryFree(hOs, *pFsm, sizeof(fsm_stateMachine_t)); 11664064216a8433360745f69edddce19a606659163The Android Open Source Project return NOK; 11764064216a8433360745f69edddce19a606659163The Android Open Source Project } 11864064216a8433360745f69edddce19a606659163The Android Open Source Project os_memoryZero(hOs, (*pFsm)->stateEventMatrix, 11964064216a8433360745f69edddce19a606659163The Android Open Source Project (MaxNoOfStates * MaxNoOfEvents * sizeof(fsm_actionCell_t))); 12064064216a8433360745f69edddce19a606659163The Android Open Source Project /* update pFsm structure with parameters */ 12164064216a8433360745f69edddce19a606659163The Android Open Source Project (*pFsm)->MaxNoOfStates = MaxNoOfStates; 12264064216a8433360745f69edddce19a606659163The Android Open Source Project (*pFsm)->MaxNoOfEvents = MaxNoOfEvents; 12364064216a8433360745f69edddce19a606659163The Android Open Source Project 12464064216a8433360745f69edddce19a606659163The Android Open Source Project return(OK); 12564064216a8433360745f69edddce19a606659163The Android Open Source Project} 12664064216a8433360745f69edddce19a606659163The Android Open Source Project 12764064216a8433360745f69edddce19a606659163The Android Open Source Project/** 12864064216a8433360745f69edddce19a606659163The Android Open Source Project* 12964064216a8433360745f69edddce19a606659163The Android Open Source Project* fsm_Unload - free all memory allocated to FSM structure 13064064216a8433360745f69edddce19a606659163The Android Open Source Project* 13164064216a8433360745f69edddce19a606659163The Android Open Source Project* \b Description: 13264064216a8433360745f69edddce19a606659163The Android Open Source Project* 13364064216a8433360745f69edddce19a606659163The Android Open Source Project* Unload the FSM structure. 13464064216a8433360745f69edddce19a606659163The Android Open Source Project* 13564064216a8433360745f69edddce19a606659163The Android Open Source Project* \b ARGS: 13664064216a8433360745f69edddce19a606659163The Android Open Source Project* 13764064216a8433360745f69edddce19a606659163The Android Open Source Project* O - pFsm - the generated FSM module \n 13864064216a8433360745f69edddce19a606659163The Android Open Source Project* I - noOfStates - Number of states in the module \n 13964064216a8433360745f69edddce19a606659163The Android Open Source Project* I - noOfStates - Number of events in the module \n 14064064216a8433360745f69edddce19a606659163The Android Open Source Project* I/O - matrix - the state event matrix 14164064216a8433360745f69edddce19a606659163The Android Open Source Project* I - transFunc - Transition finction for the state machine \n 14264064216a8433360745f69edddce19a606659163The Android Open Source Project* 14364064216a8433360745f69edddce19a606659163The Android Open Source Project* \b RETURNS: 14464064216a8433360745f69edddce19a606659163The Android Open Source Project* 14564064216a8433360745f69edddce19a606659163The Android Open Source Project* OK on success, NOK on failure 14664064216a8433360745f69edddce19a606659163The Android Open Source Project* 14764064216a8433360745f69edddce19a606659163The Android Open Source Project* \sa fsm_Event 14864064216a8433360745f69edddce19a606659163The Android Open Source Project*/ 14964064216a8433360745f69edddce19a606659163The Android Open Source ProjectTI_STATUS fsm_Unload(TI_HANDLE hOs, 15064064216a8433360745f69edddce19a606659163The Android Open Source Project fsm_stateMachine_t *pFsm) 15164064216a8433360745f69edddce19a606659163The Android Open Source Project{ 15264064216a8433360745f69edddce19a606659163The Android Open Source Project /* check for perliminary conditions */ 15364064216a8433360745f69edddce19a606659163The Android Open Source Project if (pFsm == NULL) 15464064216a8433360745f69edddce19a606659163The Android Open Source Project { 15564064216a8433360745f69edddce19a606659163The Android Open Source Project return NOK; 15664064216a8433360745f69edddce19a606659163The Android Open Source Project } 15764064216a8433360745f69edddce19a606659163The Android Open Source Project 15864064216a8433360745f69edddce19a606659163The Android Open Source Project /* free memory of FSM matrix */ 15964064216a8433360745f69edddce19a606659163The Android Open Source Project if (pFsm->stateEventMatrix != NULL) 16064064216a8433360745f69edddce19a606659163The Android Open Source Project { 16164064216a8433360745f69edddce19a606659163The Android Open Source Project os_memoryFree(hOs, pFsm->stateEventMatrix, 16264064216a8433360745f69edddce19a606659163The Android Open Source Project pFsm->MaxNoOfStates * pFsm->MaxNoOfEvents * sizeof(fsm_actionCell_t)); 16364064216a8433360745f69edddce19a606659163The Android Open Source Project } 16464064216a8433360745f69edddce19a606659163The Android Open Source Project 16564064216a8433360745f69edddce19a606659163The Android Open Source Project /* free memory for FSM context (no need to check for null) */ 16664064216a8433360745f69edddce19a606659163The Android Open Source Project os_memoryFree(hOs, pFsm, sizeof(fsm_stateMachine_t)); 16764064216a8433360745f69edddce19a606659163The Android Open Source Project 16864064216a8433360745f69edddce19a606659163The Android Open Source Project return(OK); 16964064216a8433360745f69edddce19a606659163The Android Open Source Project} 17064064216a8433360745f69edddce19a606659163The Android Open Source Project 17164064216a8433360745f69edddce19a606659163The Android Open Source Project/** 17264064216a8433360745f69edddce19a606659163The Android Open Source Project* 17364064216a8433360745f69edddce19a606659163The Android Open Source Project* fsm_Init - Initialize the FSM structure 17464064216a8433360745f69edddce19a606659163The Android Open Source Project* 17564064216a8433360745f69edddce19a606659163The Android Open Source Project* \b Description: 17664064216a8433360745f69edddce19a606659163The Android Open Source Project* 17764064216a8433360745f69edddce19a606659163The Android Open Source Project* Init The FSM structure. If matrix argument is NULL, allocate memory for 17864064216a8433360745f69edddce19a606659163The Android Open Source Project* new matrix. 17964064216a8433360745f69edddce19a606659163The Android Open Source Project* 18064064216a8433360745f69edddce19a606659163The Android Open Source Project* \b ARGS: 18164064216a8433360745f69edddce19a606659163The Android Open Source Project* 18264064216a8433360745f69edddce19a606659163The Android Open Source Project* O - pFsm - the generated FSM module \n 18364064216a8433360745f69edddce19a606659163The Android Open Source Project* I - noOfStates - Number of states in the module \n 18464064216a8433360745f69edddce19a606659163The Android Open Source Project* I - noOfStates - Number of events in the module \n 18564064216a8433360745f69edddce19a606659163The Android Open Source Project* I/O - matrix - the state event matrix 18664064216a8433360745f69edddce19a606659163The Android Open Source Project* I - transFunc - Transition finction for the state machine \n 18764064216a8433360745f69edddce19a606659163The Android Open Source Project* 18864064216a8433360745f69edddce19a606659163The Android Open Source Project* \b RETURNS: 18964064216a8433360745f69edddce19a606659163The Android Open Source Project* 19064064216a8433360745f69edddce19a606659163The Android Open Source Project* OK on success, NOK on failure 19164064216a8433360745f69edddce19a606659163The Android Open Source Project* 19264064216a8433360745f69edddce19a606659163The Android Open Source Project* \sa fsm_Event 19364064216a8433360745f69edddce19a606659163The Android Open Source Project*/ 19464064216a8433360745f69edddce19a606659163The Android Open Source ProjectTI_STATUS fsm_Config(fsm_stateMachine_t *pFsm, 19564064216a8433360745f69edddce19a606659163The Android Open Source Project fsm_Matrix_t pMatrix, 19664064216a8433360745f69edddce19a606659163The Android Open Source Project UINT8 ActiveNoOfStates, 19764064216a8433360745f69edddce19a606659163The Android Open Source Project UINT8 ActiveNoOfEvents, 19864064216a8433360745f69edddce19a606659163The Android Open Source Project fsm_eventActivation_t transFunc, 19964064216a8433360745f69edddce19a606659163The Android Open Source Project TI_HANDLE hOs) 20064064216a8433360745f69edddce19a606659163The Android Open Source Project{ 20164064216a8433360745f69edddce19a606659163The Android Open Source Project /* check for perliminary conditions */ 20264064216a8433360745f69edddce19a606659163The Android Open Source Project if ((pFsm == NULL) || 20364064216a8433360745f69edddce19a606659163The Android Open Source Project (pMatrix == NULL)) 20464064216a8433360745f69edddce19a606659163The Android Open Source Project { 20564064216a8433360745f69edddce19a606659163The Android Open Source Project return NOK; 20664064216a8433360745f69edddce19a606659163The Android Open Source Project } 20764064216a8433360745f69edddce19a606659163The Android Open Source Project 20864064216a8433360745f69edddce19a606659163The Android Open Source Project if ((ActiveNoOfStates > pFsm->MaxNoOfStates) || 20964064216a8433360745f69edddce19a606659163The Android Open Source Project (ActiveNoOfEvents > pFsm->MaxNoOfEvents)) 21064064216a8433360745f69edddce19a606659163The Android Open Source Project { 21164064216a8433360745f69edddce19a606659163The Android Open Source Project return NOK; 21264064216a8433360745f69edddce19a606659163The Android Open Source Project } 21364064216a8433360745f69edddce19a606659163The Android Open Source Project 21464064216a8433360745f69edddce19a606659163The Android Open Source Project /* copy matrix to FSM context */ 21564064216a8433360745f69edddce19a606659163The Android Open Source Project os_memoryCopy(hOs, (void *)pFsm->stateEventMatrix, (void *)pMatrix, 21664064216a8433360745f69edddce19a606659163The Android Open Source Project ActiveNoOfStates * ActiveNoOfEvents * sizeof(fsm_actionCell_t)); 21764064216a8433360745f69edddce19a606659163The Android Open Source Project 21864064216a8433360745f69edddce19a606659163The Android Open Source Project /* update pFsm structure with parameters */ 21964064216a8433360745f69edddce19a606659163The Android Open Source Project pFsm->ActiveNoOfStates = ActiveNoOfStates; 22064064216a8433360745f69edddce19a606659163The Android Open Source Project pFsm->ActiveNoOfEvents = ActiveNoOfEvents; 22164064216a8433360745f69edddce19a606659163The Android Open Source Project pFsm->transitionFunc = transFunc; 22264064216a8433360745f69edddce19a606659163The Android Open Source Project return(OK); 22364064216a8433360745f69edddce19a606659163The Android Open Source Project} 22464064216a8433360745f69edddce19a606659163The Android Open Source Project 22564064216a8433360745f69edddce19a606659163The Android Open Source Project/** 22664064216a8433360745f69edddce19a606659163The Android Open Source Project* 22764064216a8433360745f69edddce19a606659163The Android Open Source Project* fsm_Event - perform event transition in the matrix 22864064216a8433360745f69edddce19a606659163The Android Open Source Project* 22964064216a8433360745f69edddce19a606659163The Android Open Source Project* \b Description: 23064064216a8433360745f69edddce19a606659163The Android Open Source Project* 23164064216a8433360745f69edddce19a606659163The Android Open Source Project* Perform event transition in the matrix 23264064216a8433360745f69edddce19a606659163The Android Open Source Project* 23364064216a8433360745f69edddce19a606659163The Android Open Source Project* \b ARGS: 23464064216a8433360745f69edddce19a606659163The Android Open Source Project* 23564064216a8433360745f69edddce19a606659163The Android Open Source Project* I - pFsm - the generated FSM module \n 23664064216a8433360745f69edddce19a606659163The Android Open Source Project* I/O - currentState - current state of the SM \n 23764064216a8433360745f69edddce19a606659163The Android Open Source Project* I - event - event causing transition \n 23864064216a8433360745f69edddce19a606659163The Android Open Source Project* I - pData - data for activation function \n 23964064216a8433360745f69edddce19a606659163The Android Open Source Project* 24064064216a8433360745f69edddce19a606659163The Android Open Source Project* \b RETURNS: 24164064216a8433360745f69edddce19a606659163The Android Open Source Project* 24264064216a8433360745f69edddce19a606659163The Android Open Source Project* OK on success, NOK on failure 24364064216a8433360745f69edddce19a606659163The Android Open Source Project* 24464064216a8433360745f69edddce19a606659163The Android Open Source Project* \sa fsm_Init 24564064216a8433360745f69edddce19a606659163The Android Open Source Project*/ 24664064216a8433360745f69edddce19a606659163The Android Open Source ProjectTI_STATUS fsm_Event(fsm_stateMachine_t *pFsm, 24764064216a8433360745f69edddce19a606659163The Android Open Source Project UINT8 *currentState, 24864064216a8433360745f69edddce19a606659163The Android Open Source Project UINT8 event, 24964064216a8433360745f69edddce19a606659163The Android Open Source Project void *pData) 25064064216a8433360745f69edddce19a606659163The Android Open Source Project{ 25164064216a8433360745f69edddce19a606659163The Android Open Source Project UINT8 oldState; 25264064216a8433360745f69edddce19a606659163The Android Open Source Project TI_STATUS status; 25364064216a8433360745f69edddce19a606659163The Android Open Source Project 25464064216a8433360745f69edddce19a606659163The Android Open Source Project /* check for FSM existance */ 25564064216a8433360745f69edddce19a606659163The Android Open Source Project if (pFsm == NULL) 25664064216a8433360745f69edddce19a606659163The Android Open Source Project { 25764064216a8433360745f69edddce19a606659163The Android Open Source Project return(NOK); 25864064216a8433360745f69edddce19a606659163The Android Open Source Project } 25964064216a8433360745f69edddce19a606659163The Android Open Source Project 26064064216a8433360745f69edddce19a606659163The Android Open Source Project /* boundary check */ 26164064216a8433360745f69edddce19a606659163The Android Open Source Project if ((*currentState >= pFsm->ActiveNoOfStates) || (event >= pFsm->ActiveNoOfEvents)) 26264064216a8433360745f69edddce19a606659163The Android Open Source Project { 26364064216a8433360745f69edddce19a606659163The Android Open Source Project return(NOK); 26464064216a8433360745f69edddce19a606659163The Android Open Source Project } 26564064216a8433360745f69edddce19a606659163The Android Open Source Project 26664064216a8433360745f69edddce19a606659163The Android Open Source Project oldState = *currentState; 26764064216a8433360745f69edddce19a606659163The Android Open Source Project /* update current state */ 26864064216a8433360745f69edddce19a606659163The Android Open Source Project *currentState = pFsm->stateEventMatrix[(*currentState * pFsm->ActiveNoOfEvents) + event].nextState; 26964064216a8433360745f69edddce19a606659163The Android Open Source Project 27064064216a8433360745f69edddce19a606659163The Android Open Source Project /* activate transition function */ 27164064216a8433360745f69edddce19a606659163The Android Open Source Project if( !(*pFsm->stateEventMatrix[(oldState * pFsm->ActiveNoOfEvents) + event].actionFunc) ) { 27264064216a8433360745f69edddce19a606659163The Android Open Source Project return(NOK); 27364064216a8433360745f69edddce19a606659163The Android Open Source Project } 27464064216a8433360745f69edddce19a606659163The Android Open Source Project status = (*pFsm->stateEventMatrix[(oldState * pFsm->ActiveNoOfEvents) + event].actionFunc)(pData); 27564064216a8433360745f69edddce19a606659163The Android Open Source Project 27664064216a8433360745f69edddce19a606659163The Android Open Source Project return status; 27764064216a8433360745f69edddce19a606659163The Android Open Source Project} 27864064216a8433360745f69edddce19a606659163The Android Open Source Project 27964064216a8433360745f69edddce19a606659163The Android Open Source Project 28064064216a8433360745f69edddce19a606659163The Android Open Source Project/** 28164064216a8433360745f69edddce19a606659163The Android Open Source Project* 28264064216a8433360745f69edddce19a606659163The Android Open Source Project* fsm_GetNextState - Retrun the next state for a given current state and an event. 28364064216a8433360745f69edddce19a606659163The Android Open Source Project* 28464064216a8433360745f69edddce19a606659163The Android Open Source Project* \b Description: 28564064216a8433360745f69edddce19a606659163The Android Open Source Project* 28664064216a8433360745f69edddce19a606659163The Android Open Source Project* Retrun the next state for a given current state and an event. 28764064216a8433360745f69edddce19a606659163The Android Open Source Project* 28864064216a8433360745f69edddce19a606659163The Android Open Source Project* \b ARGS: 28964064216a8433360745f69edddce19a606659163The Android Open Source Project* 29064064216a8433360745f69edddce19a606659163The Android Open Source Project* I - pFsm - the generated FSM module \n 29164064216a8433360745f69edddce19a606659163The Android Open Source Project* I - currentState - current state of the SM \n 29264064216a8433360745f69edddce19a606659163The Android Open Source Project* I - event - event causing transition \n 29364064216a8433360745f69edddce19a606659163The Android Open Source Project* O - nextState - returned next state \n 29464064216a8433360745f69edddce19a606659163The Android Open Source Project* 29564064216a8433360745f69edddce19a606659163The Android Open Source Project* \b RETURNS: 29664064216a8433360745f69edddce19a606659163The Android Open Source Project* 29764064216a8433360745f69edddce19a606659163The Android Open Source Project* OK on success, NOK on failure 29864064216a8433360745f69edddce19a606659163The Android Open Source Project* 29964064216a8433360745f69edddce19a606659163The Android Open Source Project* \sa 30064064216a8433360745f69edddce19a606659163The Android Open Source Project*/ 30164064216a8433360745f69edddce19a606659163The Android Open Source ProjectTI_STATUS fsm_GetNextState(fsm_stateMachine_t *pFsm, 30264064216a8433360745f69edddce19a606659163The Android Open Source Project UINT8 currentState, 30364064216a8433360745f69edddce19a606659163The Android Open Source Project UINT8 event, 30464064216a8433360745f69edddce19a606659163The Android Open Source Project UINT8 *nextState) 30564064216a8433360745f69edddce19a606659163The Android Open Source Project{ 30664064216a8433360745f69edddce19a606659163The Android Open Source Project if (pFsm != NULL) 30764064216a8433360745f69edddce19a606659163The Android Open Source Project { 30864064216a8433360745f69edddce19a606659163The Android Open Source Project if ((currentState < pFsm->ActiveNoOfStates) && (event < pFsm->ActiveNoOfEvents)) 30964064216a8433360745f69edddce19a606659163The Android Open Source Project { 31064064216a8433360745f69edddce19a606659163The Android Open Source Project *nextState = pFsm->stateEventMatrix[(currentState * pFsm->ActiveNoOfEvents) + event].nextState; 31164064216a8433360745f69edddce19a606659163The Android Open Source Project return(OK); 31264064216a8433360745f69edddce19a606659163The Android Open Source Project } 31364064216a8433360745f69edddce19a606659163The Android Open Source Project } 31464064216a8433360745f69edddce19a606659163The Android Open Source Project 31564064216a8433360745f69edddce19a606659163The Android Open Source Project return(NOK); 31664064216a8433360745f69edddce19a606659163The Android Open Source Project} 31764064216a8433360745f69edddce19a606659163The Android Open Source Project 31864064216a8433360745f69edddce19a606659163The Android Open Source ProjectTI_STATUS action_nop(void *pData) 31964064216a8433360745f69edddce19a606659163The Android Open Source Project{ 32064064216a8433360745f69edddce19a606659163The Android Open Source Project return OK; 32164064216a8433360745f69edddce19a606659163The Android Open Source Project} 322