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Diffstat (limited to 'src/phLlcNfc_StateMachine.c')
| -rw-r--r-- | src/phLlcNfc_StateMachine.c | 154 |
1 files changed, 154 insertions, 0 deletions
diff --git a/src/phLlcNfc_StateMachine.c b/src/phLlcNfc_StateMachine.c new file mode 100644 index 0000000..4543265 --- /dev/null +++ b/src/phLlcNfc_StateMachine.c @@ -0,0 +1,154 @@ +/* + * Copyright (C) 2010 NXP Semiconductors + * + * Licensed under the Apache License, Version 2.0 (the "License"); + * you may not use this file except in compliance with the License. + * You may obtain a copy of the License at + * + * http://www.apache.org/licenses/LICENSE-2.0 + * + * Unless required by applicable law or agreed to in writing, software + * distributed under the License is distributed on an "AS IS" BASIS, + * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. + * See the License for the specific language governing permissions and + * limitations under the License. + */ + +/*! +* \file phLlcNfc_StateMachine.c +* \brief Llc state machine implemenatation. +* +* Project: NFC-FRI-1.1 +* +* $Date: Fri Apr 17 09:17:48 2009 $ +* $Author: ing02260 $ +* $Revision: 1.8 $ +* $Aliases: NFC_FRI1.1_WK916_R23_1,NFC_FRI1.1_WK918_R24_1,NFC_FRI1.1_WK920_PREP1,NFC_FRI1.1_WK920_R25_1,NFC_FRI1.1_WK922_PREP1,NFC_FRI1.1_WK922_R26_1,NFC_FRI1.1_WK924_PREP1,NFC_FRI1.1_WK924_R27_1,NFC_FRI1.1_WK926_R28_1,NFC_FRI1.1_WK926_R28_2,NFC_FRI1.1_WK926_R28_3,NFC_FRI1.1_WK928_R29_1,NFC_FRI1.1_WK930_R30_1,NFC_FRI1.1_WK934_PREP_1,NFC_FRI1.1_WK934_R31_1,NFC_FRI1.1_WK941_PREP1,NFC_FRI1.1_WK941_PREP2,NFC_FRI1.1_WK941_1,NFC_FRI1.1_WK943_R32_1,NFC_FRI1.1_WK949_PREP1,NFC_FRI1.1_WK943_R32_10,NFC_FRI1.1_WK943_R32_13,NFC_FRI1.1_WK943_R32_14,NFC_FRI1.1_WK1007_R33_1,NFC_FRI1.1_WK1007_R33_4,NFC_FRI1.1_WK1017_PREP1,NFC_FRI1.1_WK1017_R34_1,NFC_FRI1.1_WK1017_R34_2,NFC_FRI1.1_WK1023_R35_1 $ +* +*/ + +/*************************** Includes *******************************/ +#include <phNfcTypes.h> +#include <phNfcStatus.h> +#include <phOsalNfc.h> +#include <phNfcInterface.h> +#include <phLlcNfc_DataTypes.h> +#include <phLlcNfc_Frame.h> + +/*********************** End of includes ****************************/ + +/***************************** Macros *******************************/ + +/************************ End of macros *****************************/ + +/*********************** Local functions ****************************/ + +/******************** End of Local functions ************************/ + +/********************** Global variables ****************************/ + +/******************** End of Global Variables ***********************/ + +NFCSTATUS +phLlcNfc_H_ChangeState( + phLlcNfc_Context_t *psLlcCtxt, + phLlcNfc_State_t changeStateTo +) +{ + NFCSTATUS result = PHNFCSTVAL(CID_NFC_LLC, + NFCSTATUS_INVALID_STATE); + if ((NULL != psLlcCtxt) && + (changeStateTo != phLlcNfc_Uninitialise_State)) + { + switch(psLlcCtxt->state) + { + case phLlcNfc_Uninitialise_State: + { + if (phLlcNfc_Initialising_State == changeStateTo) + { + result = NFCSTATUS_SUCCESS; + psLlcCtxt->state = changeStateTo; + } + break; + } + case phLlcNfc_Initialising_State: + { + if (phLlcNfc_Initialised_State == changeStateTo) + { + result = NFCSTATUS_SUCCESS; + psLlcCtxt->state = changeStateTo; + } + break; + } + case phLlcNfc_Initialised_State: + { + if (changeStateTo > phLlcNfc_Initialising_State) + { + result = NFCSTATUS_SUCCESS; + psLlcCtxt->state = changeStateTo; + } + break; + } + case phLlcNfc_ReceiveWait_State: + { + if (changeStateTo >= phLlcNfc_Initialised_State) + { + result = NFCSTATUS_SUCCESS; + psLlcCtxt->state = changeStateTo; + } + break; + } + case phLlcNfc_Sending_State: + { + if ((phLlcNfc_Initialised_State == changeStateTo) || + (phLlcNfc_Sending_State == changeStateTo)) + { + result = NFCSTATUS_SUCCESS; + psLlcCtxt->state = changeStateTo; + } + break; + } + case phLlcNfc_Receiving_State: + { + if ((phLlcNfc_Initialised_State == changeStateTo) || + (phLlcNfc_Sending_State == changeStateTo)) + { + result = NFCSTATUS_SUCCESS; + psLlcCtxt->state = changeStateTo; + } + break; + } + case phLlcNfc_Resend_State: + { + if (phLlcNfc_Initialised_State == changeStateTo) + { + result = NFCSTATUS_SUCCESS; + psLlcCtxt->state = changeStateTo; + } + if (phLlcNfc_Sending_State == changeStateTo) + { + result = NFCSTATUS_SUCCESS; + if (0 != psLlcCtxt->s_frameinfo.s_send_store.winsize_cnt) + { + psLlcCtxt->state = changeStateTo; + } + } + break; + } + default: + { + /* Error scenario: There cant be any change in the state, + while LLC is in these states */ + result = PHNFCSTVAL(CID_NFC_LLC, + NFCSTATUS_INVALID_FORMAT); + break; + } + } + } + if ((NULL != psLlcCtxt) && + (phLlcNfc_Uninitialise_State == changeStateTo)) + { + psLlcCtxt->state = changeStateTo; + } + return result; +} |