| Nick Pelly | 5d9927b | 2010-09-23 12:47:58 -0700 | [diff] [blame] | 1 | /* |
| 2 | * Copyright (C) 2010 NXP Semiconductors |
| 3 | * |
| 4 | * Licensed under the Apache License, Version 2.0 (the "License"); |
| 5 | * you may not use this file except in compliance with the License. |
| 6 | * You may obtain a copy of the License at |
| 7 | * |
| 8 | * http://www.apache.org/licenses/LICENSE-2.0 |
| 9 | * |
| 10 | * Unless required by applicable law or agreed to in writing, software |
| 11 | * distributed under the License is distributed on an "AS IS" BASIS, |
| 12 | * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 13 | * See the License for the specific language governing permissions and |
| 14 | * limitations under the License. |
| 15 | */ |
| 16 | |
| 17 | /*! |
| 18 | * \file phLlcNfc_StateMachine.c |
| 19 | * \brief Llc state machine implemenatation. |
| 20 | * |
| 21 | * Project: NFC-FRI-1.1 |
| 22 | * |
| 23 | * $Date: Fri Apr 17 09:17:48 2009 $ |
| 24 | * $Author: ing02260 $ |
| 25 | * $Revision: 1.8 $ |
| 26 | * $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 $ |
| 27 | * |
| 28 | */ |
| 29 | |
| 30 | /*************************** Includes *******************************/ |
| 31 | #include <phNfcTypes.h> |
| 32 | #include <phNfcStatus.h> |
| 33 | #include <phOsalNfc.h> |
| 34 | #include <phNfcInterface.h> |
| 35 | #include <phLlcNfc_DataTypes.h> |
| 36 | #include <phLlcNfc_Frame.h> |
| 37 | |
| 38 | /*********************** End of includes ****************************/ |
| 39 | |
| 40 | /***************************** Macros *******************************/ |
| 41 | |
| 42 | /************************ End of macros *****************************/ |
| 43 | |
| 44 | /*********************** Local functions ****************************/ |
| 45 | |
| 46 | /******************** End of Local functions ************************/ |
| 47 | |
| 48 | /********************** Global variables ****************************/ |
| 49 | |
| 50 | /******************** End of Global Variables ***********************/ |
| 51 | |
| 52 | NFCSTATUS |
| 53 | phLlcNfc_H_ChangeState( |
| 54 | phLlcNfc_Context_t *psLlcCtxt, |
| 55 | phLlcNfc_State_t changeStateTo |
| 56 | ) |
| 57 | { |
| 58 | NFCSTATUS result = PHNFCSTVAL(CID_NFC_LLC, |
| 59 | NFCSTATUS_INVALID_STATE); |
| 60 | if ((NULL != psLlcCtxt) && |
| 61 | (changeStateTo != phLlcNfc_Uninitialise_State)) |
| 62 | { |
| 63 | switch(psLlcCtxt->state) |
| 64 | { |
| 65 | case phLlcNfc_Uninitialise_State: |
| 66 | { |
| 67 | if (phLlcNfc_Initialising_State == changeStateTo) |
| 68 | { |
| 69 | result = NFCSTATUS_SUCCESS; |
| 70 | psLlcCtxt->state = changeStateTo; |
| 71 | } |
| 72 | break; |
| 73 | } |
| 74 | case phLlcNfc_Initialising_State: |
| 75 | { |
| 76 | if (phLlcNfc_Initialised_State == changeStateTo) |
| 77 | { |
| 78 | result = NFCSTATUS_SUCCESS; |
| 79 | psLlcCtxt->state = changeStateTo; |
| 80 | } |
| 81 | break; |
| 82 | } |
| 83 | case phLlcNfc_Initialised_State: |
| 84 | { |
| 85 | if (changeStateTo > phLlcNfc_Initialising_State) |
| 86 | { |
| 87 | result = NFCSTATUS_SUCCESS; |
| 88 | psLlcCtxt->state = changeStateTo; |
| 89 | } |
| 90 | break; |
| 91 | } |
| 92 | case phLlcNfc_ReceiveWait_State: |
| 93 | { |
| 94 | if (changeStateTo >= phLlcNfc_Initialised_State) |
| 95 | { |
| 96 | result = NFCSTATUS_SUCCESS; |
| 97 | psLlcCtxt->state = changeStateTo; |
| 98 | } |
| 99 | break; |
| 100 | } |
| 101 | case phLlcNfc_Sending_State: |
| 102 | { |
| 103 | if ((phLlcNfc_Initialised_State == changeStateTo) || |
| 104 | (phLlcNfc_Sending_State == changeStateTo)) |
| 105 | { |
| 106 | result = NFCSTATUS_SUCCESS; |
| 107 | psLlcCtxt->state = changeStateTo; |
| 108 | } |
| 109 | break; |
| 110 | } |
| 111 | case phLlcNfc_Receiving_State: |
| 112 | { |
| 113 | if ((phLlcNfc_Initialised_State == changeStateTo) || |
| 114 | (phLlcNfc_Sending_State == changeStateTo)) |
| 115 | { |
| 116 | result = NFCSTATUS_SUCCESS; |
| 117 | psLlcCtxt->state = changeStateTo; |
| 118 | } |
| 119 | break; |
| 120 | } |
| 121 | case phLlcNfc_Resend_State: |
| 122 | { |
| 123 | if (phLlcNfc_Initialised_State == changeStateTo) |
| 124 | { |
| 125 | result = NFCSTATUS_SUCCESS; |
| 126 | psLlcCtxt->state = changeStateTo; |
| 127 | } |
| 128 | if (phLlcNfc_Sending_State == changeStateTo) |
| 129 | { |
| 130 | result = NFCSTATUS_SUCCESS; |
| 131 | if (0 != psLlcCtxt->s_frameinfo.s_send_store.winsize_cnt) |
| 132 | { |
| 133 | psLlcCtxt->state = changeStateTo; |
| 134 | } |
| 135 | } |
| 136 | break; |
| 137 | } |
| 138 | default: |
| 139 | { |
| 140 | /* Error scenario: There cant be any change in the state, |
| 141 | while LLC is in these states */ |
| 142 | result = PHNFCSTVAL(CID_NFC_LLC, |
| 143 | NFCSTATUS_INVALID_FORMAT); |
| 144 | break; |
| 145 | } |
| 146 | } |
| 147 | } |
| 148 | if ((NULL != psLlcCtxt) && |
| 149 | (phLlcNfc_Uninitialise_State == changeStateTo)) |
| 150 | { |
| 151 | psLlcCtxt->state = changeStateTo; |
| 152 | } |
| 153 | return result; |
| 154 | } |