/****************************************************************************** * * Copyright (C) 2010-2014 Broadcom Corporation * * 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. * ******************************************************************************/ /****************************************************************************** * * This file contains the action functions for device manager state * machine. * ******************************************************************************/ #include <string.h> #include <android-base/stringprintf.h> #include <base/logging.h> #include "nci_hmsgs.h" #include "nfa_api.h" #include "nfa_ce_int.h" #include "nfa_p2p_int.h" #include "nfa_rw_api.h" #include "nfa_rw_int.h" #if (NFC_NFCEE_INCLUDED == TRUE) #include "nfa_ee_int.h" #endif #if (NFA_SNEP_INCLUDED == TRUE) #include "nfa_snep_int.h" #endif using android::base::StringPrintf; extern bool nfc_debug_enabled; /* This is the timeout value to guarantee disable is performed within reasonable * amount of time */ #ifndef NFA_DM_DISABLE_TIMEOUT_VAL #define NFA_DM_DISABLE_TIMEOUT_VAL 1000 #endif static void nfa_dm_set_init_nci_params(void); static tNFA_STATUS nfa_dm_start_polling(void); static bool nfa_dm_deactivate_polling(void); static void nfa_dm_excl_disc_cback(tNFA_DM_RF_DISC_EVT event, tNFC_DISCOVER* p_data); static void nfa_dm_poll_disc_cback(tNFA_DM_RF_DISC_EVT event, tNFC_DISCOVER* p_data); /******************************************************************************* ** ** Function nfa_dm_module_init_cback ** ** Description Processing initialization complete event from sub-modules ** ** Returns None ** *******************************************************************************/ static void nfa_dm_module_init_cback(void) { tNFA_DM_CBACK_DATA dm_cback_data; nfa_dm_cb.flags &= ~NFA_DM_FLAGS_ENABLE_EVT_PEND; /* All subsystem are initialized */ dm_cback_data.status = NFA_STATUS_OK; (*nfa_dm_cb.p_dm_cback)(NFA_DM_ENABLE_EVT, &dm_cback_data); } /******************************************************************************* ** ** Function nfa_dm_nfcc_power_mode_proc_complete_cback ** ** Description Processing complete of processing NFCC power state change ** from all sub-modules ** ** Returns None ** *******************************************************************************/ static void nfa_dm_nfcc_power_mode_proc_complete_cback(void) { tNFA_DM_PWR_MODE_CHANGE power_mode_change; DLOG_IF(INFO, nfc_debug_enabled) << StringPrintf("nfcc_pwr_mode = 0x%x", nfa_dm_cb.nfcc_pwr_mode); /* if NFCC power state is change to full power */ if (nfa_dm_cb.nfcc_pwr_mode != NFA_DM_PWR_MODE_OFF_SLEEP) { nfa_dm_cb.flags &= ~NFA_DM_FLAGS_NFCC_IS_RESTORING; /* reconfigure BRCM NFCC */ nfa_dm_disc_sm_execute(NFA_DM_RF_DISCOVER_CMD, NULL); } nfa_dm_cb.flags &= ~NFA_DM_FLAGS_SETTING_PWR_MODE; power_mode_change.status = NFA_STATUS_OK; power_mode_change.power_mode = nfa_dm_cb.nfcc_pwr_mode; tNFA_DM_CBACK_DATA nfa_dm_cback_data; nfa_dm_cback_data.power_mode = power_mode_change; (*nfa_dm_cb.p_dm_cback)(NFA_DM_PWR_MODE_CHANGE_EVT, &nfa_dm_cback_data); } /******************************************************************************* ** ** Function nfa_dm_sys_enable ** ** Description This function on enable ** ** Returns void ** *******************************************************************************/ void nfa_dm_sys_enable(void) { nfa_dm_set_init_nci_params(); } /******************************************************************************* ** ** Function nfa_dm_set_init_nci_params ** ** Description Set initial NCI configuration parameters ** ** Returns void ** *******************************************************************************/ static void nfa_dm_set_init_nci_params(void) { uint8_t xx; /* set NCI default value if other than zero */ if (NFC_GetNCIVersion() == NCI_VERSION_2_0) { /* Default Values: For each identifier * Octet 0-1 = OxFF * Octet 2 = Ox02 * Octet 3 = 0xFE * Octet 4-9 = 0x00 * Octet 10-17 = 0xFF*/ for (xx = 0; xx < NFA_CE_LISTEN_INFO_MAX; xx++) { nfa_dm_cb.params.lf_t3t_id[xx][0] = 0xFF; nfa_dm_cb.params.lf_t3t_id[xx][1] = 0xFF; nfa_dm_cb.params.lf_t3t_id[xx][2] = 0x02; nfa_dm_cb.params.lf_t3t_id[xx][3] = 0xFE; } /* LF_T3T_PMM value is added to LF_T3T_IDENTIFIERS_X in NCI2.0. */ for (xx = 0; xx < NFA_CE_LISTEN_INFO_MAX; xx++) { for (uint8_t yy = 10; yy < NCI_PARAM_LEN_LF_T3T_ID(NCI_VERSION_2_0); yy++) nfa_dm_cb.params.lf_t3t_id[xx][yy] = 0xFF; } } else { /* LF_T3T_IDENTIFIERS_1/2/.../16 */ for (xx = 0; xx < NFA_CE_LISTEN_INFO_MAX; xx++) { nfa_dm_cb.params.lf_t3t_id[xx][0] = 0xFF; nfa_dm_cb.params.lf_t3t_id[xx][1] = 0xFF; nfa_dm_cb.params.lf_t3t_id[xx][2] = 0x02; nfa_dm_cb.params.lf_t3t_id[xx][3] = 0xFE; } /* LF_T3T_PMM */ for (xx = 0; xx < NCI_PARAM_LEN_LF_T3T_PMM; xx++) { nfa_dm_cb.params.lf_t3t_pmm[xx] = 0xFF; } } /* LF_T3T_FLAGS: ** DH needs to set this configuration, even if default value (not listening) ** is used, to let NFCC know of intention (not listening) of DH. */ /* FWI */ nfa_dm_cb.params.fwi[0] = 0x04; /* WT */ nfa_dm_cb.params.wt[0] = 14; /* Set CE default configuration */ if (p_nfa_dm_ce_cfg[0]) { nfa_dm_check_set_config(p_nfa_dm_ce_cfg[0], &p_nfa_dm_ce_cfg[1], false); } /* Set optional general default configuration */ if (p_nfa_dm_gen_cfg && p_nfa_dm_gen_cfg[0]) { nfa_dm_check_set_config(p_nfa_dm_gen_cfg[0], &p_nfa_dm_gen_cfg[1], false); } if (p_nfa_dm_interface_mapping && nfa_dm_num_dm_interface_mapping) { NFC_DiscoveryMap(nfa_dm_num_dm_interface_mapping, p_nfa_dm_interface_mapping, NULL); } } /******************************************************************************* ** ** Function nfa_dm_proc_nfcc_power_mode ** ** Description Processing NFCC power mode changes ** ** Returns None ** *******************************************************************************/ void nfa_dm_proc_nfcc_power_mode(uint8_t nfcc_power_mode) { DLOG_IF(INFO, nfc_debug_enabled) << StringPrintf("nfcc_power_mode=%d", nfcc_power_mode); /* if NFCC power mode is change to full power */ if (nfcc_power_mode == NFA_DM_PWR_MODE_FULL) { memset(&nfa_dm_cb.params, 0x00, sizeof(tNFA_DM_PARAMS)); DLOG_IF(INFO, nfc_debug_enabled) << StringPrintf( "setcfg_pending_mask=0x%x, setcfg_pending_num=%d", nfa_dm_cb.setcfg_pending_mask, nfa_dm_cb.setcfg_pending_num); nfa_dm_cb.setcfg_pending_mask = 0; nfa_dm_cb.setcfg_pending_num = 0; nfa_dm_set_init_nci_params(); nfa_dm_cb.flags &= ~NFA_DM_FLAGS_POWER_OFF_SLEEP; } else if (nfcc_power_mode == NFA_DM_PWR_MODE_OFF_SLEEP) { nfa_dm_cb.flags |= NFA_DM_FLAGS_POWER_OFF_SLEEP; } nfa_sys_cback_notify_nfcc_power_mode_proc_complete(NFA_ID_DM); } /******************************************************************************* ** ** Function nfa_dm_disable_event ** ** Description report disable event ** ** Returns void ** *******************************************************************************/ static void nfa_dm_disable_event(void) { /* Deregister DM from sys */ nfa_sys_deregister(NFA_ID_DM); /* Notify app */ nfa_dm_cb.flags &= ~(NFA_DM_FLAGS_DM_IS_ACTIVE | NFA_DM_FLAGS_DM_DISABLING_NFC | NFA_DM_FLAGS_ENABLE_EVT_PEND); (*nfa_dm_cb.p_dm_cback)(NFA_DM_DISABLE_EVT, NULL); } /******************************************************************************* ** ** Function nfa_dm_nfc_response_cback ** ** Description Call DM event hanlder with NFC response callback data ** ** Returns void ** *******************************************************************************/ static void nfa_dm_nfc_response_cback(tNFC_RESPONSE_EVT event, tNFC_RESPONSE* p_data) { tNFA_DM_CBACK_DATA dm_cback_data; tNFA_CONN_EVT_DATA conn_evt; uint8_t dm_cback_evt; uint8_t max_ee = 0; DLOG_IF(INFO, nfc_debug_enabled) << StringPrintf("%s(0x%x)", nfa_dm_nfc_revt_2_str(event).c_str(), event); switch (event) { case NFC_ENABLE_REVT: /* 0 Enable event */ /* NFC stack enabled. Enable nfa sub-systems */ if (p_data->enable.status == NFC_STATUS_OK) { if (nfa_ee_max_ee_cfg != 0) { if (nfa_dm_cb.get_max_ee) { max_ee = nfa_dm_cb.get_max_ee(); if (max_ee) { nfa_ee_max_ee_cfg = max_ee; } } } /* Initialize NFA subsystems */ nfa_sys_enable_subsystems(); } else if (nfa_dm_cb.flags & NFA_DM_FLAGS_ENABLE_EVT_PEND) { /* Notify app */ nfa_dm_cb.flags &= ~(NFA_DM_FLAGS_ENABLE_EVT_PEND | NFA_DM_FLAGS_DM_IS_ACTIVE); dm_cback_data.status = p_data->enable.status; (*nfa_dm_cb.p_dm_cback)(NFA_DM_ENABLE_EVT, &dm_cback_data); } break; case NFC_DISABLE_REVT: /* 1 Disable event */ nfa_dm_disable_event(); break; case NFC_SET_CONFIG_REVT: /* 2 Set Config Response */ /* If this setconfig was due to NFA_SetConfig, then notify the app */ /* lsb=whether last NCI_SET_CONFIG was due to NFA_SetConfig */ if (nfa_dm_cb.setcfg_pending_mask & 1) { dm_cback_data.set_config.status = p_data->set_config.status; dm_cback_data.set_config.num_param_id = p_data->set_config.num_param_id; memcpy(dm_cback_data.set_config.param_ids, p_data->set_config.param_ids, p_data->set_config.num_param_id); (*nfa_dm_cb.p_dm_cback)(NFA_DM_SET_CONFIG_EVT, &dm_cback_data); } /* Update the pending mask */ if (nfa_dm_cb.setcfg_pending_num > 0) { nfa_dm_cb.setcfg_pending_mask >>= 1; nfa_dm_cb.setcfg_pending_num--; } else { /* This should not occur (means we got a SET_CONFIG_NTF that's * unaccounted for */ LOG(ERROR) << StringPrintf( "NFA received unexpected NFC_SET_CONFIG_REVT"); } break; case NFC_GET_CONFIG_REVT: /* 3 Get Config Response */ if (p_data->get_config.status == NFC_STATUS_OK) { tNFA_GET_CONFIG* p_nfa_get_confg = &dm_cback_data.get_config; p_nfa_get_confg->status = NFA_STATUS_OK; p_nfa_get_confg->tlv_size = p_data->get_config.tlv_size; p_nfa_get_confg->param_tlvs = p_data->get_config.p_param_tlvs; (*nfa_dm_cb.p_dm_cback)(NFA_DM_GET_CONFIG_EVT, &dm_cback_data); return; } /* Return result of getconfig to the app */ dm_cback_data.get_config.status = NFA_STATUS_FAILED; (*nfa_dm_cb.p_dm_cback)(NFA_DM_GET_CONFIG_EVT, &dm_cback_data); break; #if (NFC_NFCEE_INCLUDED == TRUE) case NFC_NFCEE_DISCOVER_REVT: /* NFCEE Discover response */ case NFC_NFCEE_INFO_REVT: /* NFCEE Discover Notification */ case NFC_EE_ACTION_REVT: /* EE Action notification */ case NFC_NFCEE_MODE_SET_REVT: /* NFCEE Mode Set response */ case NFC_NFCEE_STATUS_REVT: /* NFCEE Status notification*/ case NFC_SET_ROUTING_REVT: /* Configure Routing response */ nfa_ee_proc_evt(event, p_data); break; case NFC_EE_DISCOVER_REQ_REVT: /* EE Discover Req notification */ if (nfa_dm_is_active() && (nfa_dm_cb.disc_cb.disc_state == NFA_DM_RFST_DISCOVERY)) { nfa_dm_rf_deactivate(NFA_DEACTIVATE_TYPE_IDLE); } nfa_ee_proc_evt(event, p_data); break; case NFC_GET_ROUTING_REVT: /* Retrieve Routing response */ break; #endif case NFC_SET_POWER_SUB_STATE_REVT: dm_cback_data.power_sub_state.status = p_data->status; dm_cback_data.power_sub_state.power_state = nfa_dm_cb.power_state; (*nfa_dm_cb.p_dm_cback)(NFA_DM_SET_POWER_SUB_STATE_EVT, &dm_cback_data); break; case NFC_RF_FIELD_REVT: /* RF Field information */ dm_cback_data.rf_field.status = NFA_STATUS_OK; dm_cback_data.rf_field.rf_field_status = p_data->rf_field.rf_field; (*nfa_dm_cb.p_dm_cback)(NFA_DM_RF_FIELD_EVT, &dm_cback_data); break; case NFC_GEN_ERROR_REVT: /* generic error command or notification */ break; case NFC_NFCC_RESTART_REVT: /* NFCC has been re-initialized */ if (p_data->status == NFC_STATUS_OK) { nfa_dm_cb.nfcc_pwr_mode = NFA_DM_PWR_MODE_FULL; nfa_dm_cb.flags |= NFA_DM_FLAGS_NFCC_IS_RESTORING; /* NFCC will start from IDLE when turned on again */ nfa_dm_cb.disc_cb.disc_flags &= ~NFA_DM_DISC_FLAGS_W4_RSP; nfa_dm_cb.disc_cb.disc_flags &= ~NFA_DM_DISC_FLAGS_W4_NTF; nfa_dm_cb.disc_cb.disc_state = NFA_DM_RFST_IDLE; } else { nfa_dm_cb.nfcc_pwr_mode = NFA_DM_PWR_MODE_OFF_SLEEP; } /* Notify NFA submodules change of NFCC power mode */ nfa_sys_cback_reg_nfcc_power_mode_proc_complete( nfa_dm_nfcc_power_mode_proc_complete_cback); nfa_sys_notify_nfcc_power_mode(nfa_dm_cb.nfcc_pwr_mode); break; case NFC_NFCC_TIMEOUT_REVT: case NFC_NFCC_TRANSPORT_ERR_REVT: DLOG_IF(INFO, nfc_debug_enabled) << StringPrintf("flags:0x%08x", nfa_dm_cb.flags); dm_cback_evt = (event == NFC_NFCC_TIMEOUT_REVT) ? NFA_DM_NFCC_TIMEOUT_EVT : NFA_DM_NFCC_TRANSPORT_ERR_EVT; (*nfa_dm_cb.p_dm_cback)(dm_cback_evt, NULL); break; case NFC_NFCC_POWER_OFF_REVT: nfa_dm_cb.nfcc_pwr_mode = NFA_DM_PWR_MODE_OFF_SLEEP; /* Notify NFA submodules change of NFCC power mode */ nfa_sys_cback_reg_nfcc_power_mode_proc_complete( nfa_dm_nfcc_power_mode_proc_complete_cback); nfa_sys_notify_nfcc_power_mode(NFA_DM_PWR_MODE_OFF_SLEEP); break; case NFC_RF_COMM_PARAMS_UPDATE_REVT: conn_evt.status = p_data->status; nfa_dm_conn_cback_event_notify(NFA_UPDATE_RF_PARAM_RESULT_EVT, &conn_evt); break; default: break; } } /******************************************************************************* ** ** Function nfa_dm_enable ** ** Description Initialises the NFC device manager ** ** Returns TRUE (message buffer to be freed by caller) ** *******************************************************************************/ bool nfa_dm_enable(tNFA_DM_MSG* p_data) { tNFA_DM_CBACK_DATA dm_cback_data; DLOG_IF(INFO, nfc_debug_enabled) << __func__; /* Check if NFA is already enabled */ if (!(nfa_dm_cb.flags & NFA_DM_FLAGS_DM_IS_ACTIVE)) { /* Initialize BRCM control block, it musb be called before setting any flags */ nfa_dm_cb.flags |= (NFA_DM_FLAGS_DM_IS_ACTIVE | NFA_DM_FLAGS_ENABLE_EVT_PEND); nfa_sys_cback_reg_enable_complete(nfa_dm_module_init_cback); /* Store Enable parameters */ nfa_dm_cb.p_dm_cback = p_data->enable.p_dm_cback; nfa_dm_cb.p_conn_cback = p_data->enable.p_conn_cback; /* Enable NFC stack */ NFC_Enable(nfa_dm_nfc_response_cback); } else { LOG(ERROR) << StringPrintf("nfa_dm_enable: ERROR ALREADY ENABLED."); dm_cback_data.status = NFA_STATUS_ALREADY_STARTED; (*(p_data->enable.p_dm_cback))(NFA_DM_ENABLE_EVT, &dm_cback_data); } return true; } /******************************************************************************* ** ** Function nfa_dm_disable ** ** Description Disables the NFC device manager ** ** Returns TRUE (message buffer to be freed by caller) ** *******************************************************************************/ bool nfa_dm_disable(tNFA_DM_MSG* p_data) { DLOG_IF(INFO, nfc_debug_enabled) << StringPrintf("graceful:%d", p_data->disable.graceful); if (p_data->disable.graceful) { /* if RF discovery is enabled */ if (nfa_dm_cb.disc_cb.disc_flags & NFA_DM_DISC_FLAGS_ENABLED) { nfa_dm_cb.disc_cb.disc_flags &= ~NFA_DM_DISC_FLAGS_ENABLED; if (nfa_dm_cb.disc_cb.disc_state == NFA_DM_RFST_IDLE) { /* if waiting RSP in idle state */ if (nfa_dm_cb.disc_cb.disc_flags & NFA_DM_DISC_FLAGS_W4_RSP) { nfa_dm_cb.disc_cb.disc_flags |= NFA_DM_DISC_FLAGS_DISABLING; } } else { nfa_dm_cb.disc_cb.disc_flags |= NFA_DM_DISC_FLAGS_DISABLING; tNFA_DM_RF_DISC_DATA nfa_dm_rf_disc_data; nfa_dm_rf_disc_data.deactivate_type = NFA_DEACTIVATE_TYPE_IDLE; nfa_dm_disc_sm_execute(NFA_DM_RF_DEACTIVATE_CMD, &nfa_dm_rf_disc_data); if ((nfa_dm_cb.disc_cb.disc_flags & (NFA_DM_DISC_FLAGS_W4_RSP | NFA_DM_DISC_FLAGS_W4_NTF)) == 0) { /* not waiting to deactivate, clear the flag now */ nfa_dm_cb.disc_cb.disc_flags &= ~NFA_DM_DISC_FLAGS_DISABLING; } } } /* Start timeout for graceful shutdown. If timer expires, then force an * ungraceful shutdown */ nfa_sys_start_timer(&nfa_dm_cb.tle, NFA_DM_TIMEOUT_DISABLE_EVT, NFA_DM_DISABLE_TIMEOUT_VAL); } /* Disable all subsystems other than DM (DM will be disabled after all */ /* the other subsystem have been disabled) */ nfa_sys_disable_subsystems(p_data->disable.graceful); return true; } /******************************************************************************* ** ** Function nfa_dm_disable_complete ** ** Description Called when all NFA subsytems are disabled. ** ** NFC core stack can now be disabled. ** ** Returns void ** *******************************************************************************/ void nfa_dm_disable_complete(void) { DLOG_IF(INFO, nfc_debug_enabled) << __func__; if ((nfa_dm_cb.flags & NFA_DM_FLAGS_DM_DISABLING_NFC) == 0) { DLOG_IF(INFO, nfc_debug_enabled) << StringPrintf("proceeding with nfc core shutdown."); nfa_dm_cb.flags |= NFA_DM_FLAGS_DM_DISABLING_NFC; nfa_sys_stop_timer(&nfa_dm_cb.tle); /* Free all buffers for NDEF handlers */ nfa_dm_ndef_dereg_all(); /* Disable nfc core stack */ NFC_Disable(); } } /******************************************************************************* ** ** Function nfa_dm_set_config ** ** Description Process set config command ** ** Returns TRUE (message buffer to be freed by caller) ** *******************************************************************************/ bool nfa_dm_set_config(tNFA_DM_MSG* p_data) { tNFC_STATUS status; uint8_t buff[255]; uint8_t* p = buff; tNFA_DM_CBACK_DATA dm_cback_data; if (p_data->setconfig.length + 2 > 255) { /* Total length of TLV must be less than 256 (1 byte) */ status = NFC_STATUS_FAILED; } else { UINT8_TO_STREAM(p, p_data->setconfig.param_id); UINT8_TO_STREAM(p, p_data->setconfig.length); ARRAY_TO_STREAM(p, p_data->setconfig.p_data, p_data->setconfig.length) status = nfa_dm_check_set_config((uint8_t)(p_data->setconfig.length + 2), buff, true); } if (status != NFC_STATUS_OK) { dm_cback_data.set_config.status = NFA_STATUS_INVALID_PARAM; (*nfa_dm_cb.p_dm_cback)(NFA_DM_SET_CONFIG_EVT, &dm_cback_data); } return true; } /******************************************************************************* ** ** Function nfa_dm_get_config ** ** Description Process get config command ** ** Returns TRUE (message buffer to be freed by caller) ** *******************************************************************************/ bool nfa_dm_get_config(tNFA_DM_MSG* p_data) { NFC_GetConfig(p_data->getconfig.num_ids, p_data->getconfig.p_pmids); return true; } /******************************************************************************* ** ** Function nfa_dm_set_power_sub_state ** ** Description Process the power sub state command ** ** Returns TRUE (message buffer to be freed by caller) ** *******************************************************************************/ bool nfa_dm_set_power_sub_state(tNFA_DM_MSG* p_data) { tNFC_STATUS status; tNFA_DM_CBACK_DATA dm_cback_data; DLOG_IF(INFO, nfc_debug_enabled) << __func__; nfa_dm_cb.power_state = p_data->set_power_state.screen_state; if (nfa_dm_cb.disc_cb.disc_state == NFA_DM_RFST_LISTEN_ACTIVE) { DLOG_IF(INFO, nfc_debug_enabled) << StringPrintf("NFA_DM_RFST_LISTEN_ACTIVE"); /* NFCC will give semantic error for power sub state command in Rf listen * active state */ status = NFC_STATUS_SEMANTIC_ERROR; } else { status = NFC_SetPowerSubState(p_data->set_power_state.screen_state); } if (status != NFC_STATUS_OK) { dm_cback_data.power_sub_state.status = NFC_STATUS_FAILED; dm_cback_data.power_sub_state.power_state = nfa_dm_cb.power_state; (*nfa_dm_cb.p_dm_cback)(NFA_DM_SET_POWER_SUB_STATE_EVT, &dm_cback_data); } return (true); } /******************************************************************************* ** ** Function nfa_dm_conn_cback_event_notify ** ** Description Notify application of CONN_CBACK event, using appropriate ** callback ** ** Returns nothing ** *******************************************************************************/ void nfa_dm_conn_cback_event_notify(uint8_t event, tNFA_CONN_EVT_DATA* p_data) { if (nfa_dm_cb.flags & NFA_DM_FLAGS_EXCL_RF_ACTIVE) { /* Use exclusive RF mode callback */ if (nfa_dm_cb.p_excl_conn_cback) (*nfa_dm_cb.p_excl_conn_cback)(event, p_data); } else { (*nfa_dm_cb.p_conn_cback)(event, p_data); } } /******************************************************************************* ** ** Function nfa_dm_rel_excl_rf_control_and_notify ** ** Description Stop exclusive RF control and notify app of ** NFA_EXCLUSIVE_RF_CONTROL_STOPPED_EVT ** ** Returns void ** *******************************************************************************/ void nfa_dm_rel_excl_rf_control_and_notify(void) { tNFA_CONN_EVT_DATA conn_evt; DLOG_IF(INFO, nfc_debug_enabled) << __func__; /* Exclusive RF control stopped. Notify app */ nfa_dm_cb.flags &= ~NFA_DM_FLAGS_EXCL_RF_ACTIVE; /* Stop exclusive RF discovery for exclusive RF mode */ nfa_dm_stop_excl_discovery(); /* Notify app that exclusive RF control has stopped */ conn_evt.status = NFA_STATUS_OK; (*nfa_dm_cb.p_excl_conn_cback)(NFA_EXCLUSIVE_RF_CONTROL_STOPPED_EVT, &conn_evt); nfa_dm_cb.p_excl_conn_cback = NULL; nfa_dm_cb.p_excl_ndef_cback = NULL; } /******************************************************************************* ** ** Function nfa_dm_act_request_excl_rf_ctrl ** ** Description Request exclusive RF control ** ** Returns TRUE (message buffer to be freed by caller) ** *******************************************************************************/ bool nfa_dm_act_request_excl_rf_ctrl(tNFA_DM_MSG* p_data) { tNFA_CONN_EVT_DATA conn_evt; DLOG_IF(INFO, nfc_debug_enabled) << __func__; if (!nfa_dm_cb.p_excl_conn_cback) { if (nfa_dm_cb.disc_cb.disc_state != NFA_DM_RFST_IDLE) { conn_evt.status = NFA_STATUS_FAILED; (*p_data->req_excl_rf_ctrl.p_conn_cback)( NFA_EXCLUSIVE_RF_CONTROL_STARTED_EVT, &conn_evt); return true; } /* Store callbacks */ nfa_dm_cb.p_excl_conn_cback = p_data->req_excl_rf_ctrl.p_conn_cback; nfa_dm_cb.p_excl_ndef_cback = p_data->req_excl_rf_ctrl.p_ndef_cback; nfa_dm_cb.flags |= NFA_DM_FLAGS_EXCL_RF_ACTIVE; /* start exclusive RF discovery */ nfa_dm_start_excl_discovery(p_data->req_excl_rf_ctrl.poll_mask, &p_data->req_excl_rf_ctrl.listen_cfg, nfa_dm_excl_disc_cback); } else { LOG(ERROR) << StringPrintf("Exclusive rf control already requested"); conn_evt.status = NFA_STATUS_FAILED; (*p_data->req_excl_rf_ctrl.p_conn_cback)( NFA_EXCLUSIVE_RF_CONTROL_STARTED_EVT, &conn_evt); } return true; } /******************************************************************************* ** ** Function nfa_dm_act_release_excl_rf_ctrl ** ** Description Release exclusive RF control ** ** Returns TRUE (message buffer to be freed by caller) ** *******************************************************************************/ bool nfa_dm_act_release_excl_rf_ctrl(__attribute__((unused)) tNFA_DM_MSG* p_data) { DLOG_IF(INFO, nfc_debug_enabled) << __func__; /* nfa_dm_rel_excl_rf_control_and_notify() is called when discovery state goes * IDLE */ nfa_dm_cb.disc_cb.disc_flags |= NFA_DM_DISC_FLAGS_STOPPING; /* if discover command has been sent in IDLE state and waiting for response ** then just wait for responose. Otherwise initiate deactivating. */ if (!((nfa_dm_cb.disc_cb.disc_state == NFA_DM_RFST_IDLE) && (nfa_dm_cb.disc_cb.disc_flags & NFA_DM_DISC_FLAGS_W4_RSP))) { nfa_dm_rf_deactivate(NFA_DEACTIVATE_TYPE_IDLE); } if (nfa_dm_cb.disc_cb.kovio_tle.in_use) nfa_sys_stop_timer(&nfa_dm_cb.disc_cb.kovio_tle); return true; } /******************************************************************************* ** ** Function nfa_dm_act_deactivate ** ** Description Process deactivate command ** ** Returns TRUE (message buffer to be freed by caller) ** *******************************************************************************/ bool nfa_dm_act_deactivate(tNFA_DM_MSG* p_data) { tNFA_CONN_EVT_DATA conn_evt; tNFA_DEACTIVATE_TYPE deact_type; DLOG_IF(INFO, nfc_debug_enabled) << __func__; /* Always allow deactivate to IDLE */ /* Do not allow deactivate to SLEEP for T1T,NFCDEP, ISO15693 */ if (p_data->deactivate.sleep_mode == false || (nfa_dm_cb.disc_cb.activated_protocol != NFA_PROTOCOL_T1T && (nfa_dm_cb.disc_cb.activated_protocol != NFA_PROTOCOL_NFC_DEP || appl_dta_mode_flag) && nfa_dm_cb.disc_cb.activated_protocol != NFA_PROTOCOL_T5T && nfa_dm_cb.disc_cb.activated_protocol != NFC_PROTOCOL_KOVIO)) { deact_type = NFA_DEACTIVATE_TYPE_DISCOVERY; if (p_data->deactivate.sleep_mode) { if (nfa_dm_cb.disc_cb.disc_state == NFA_DM_RFST_W4_HOST_SELECT) { /* Deactivate to sleep mode not allowed in this state. */ deact_type = NFA_DEACTIVATE_TYPE_IDLE; } else if (appl_dta_mode_flag == true && (nfa_dm_cb.disc_cb.disc_state != NFA_DM_RFST_LISTEN_SLEEP || nfa_dm_cb.disc_cb.disc_state == NFA_DM_RFST_POLL_ACTIVE)) { deact_type = NFA_DEACTIVATE_TYPE_SLEEP; } else if (nfa_dm_cb.disc_cb.disc_state != NFA_DM_RFST_LISTEN_SLEEP) { deact_type = NFA_DEACTIVATE_TYPE_SLEEP; } } if (nfa_dm_cb.disc_cb.disc_state == NFA_DM_RFST_W4_ALL_DISCOVERIES) { /* Only deactivate to IDLE is allowed in this state. */ deact_type = NFA_DEACTIVATE_TYPE_IDLE; } if ((nfa_dm_cb.disc_cb.activated_protocol == NFA_PROTOCOL_NFC_DEP) && ((nfa_dm_cb.flags & NFA_DM_FLAGS_EXCL_RF_ACTIVE) == 0x00) && appl_dta_mode_flag != true) { /* Exclusive RF control doesn't use NFA P2P */ /* NFA P2P will deactivate NFC link after deactivating LLCP link */ if (!(nfa_dm_cb.flags & NFA_DM_FLAGS_P2P_PAUSED)) { nfa_p2p_deactivate_llcp(); } else { nfa_dm_rf_deactivate(deact_type); } return true; } else { if (nfa_dm_rf_deactivate(deact_type) == NFA_STATUS_OK) { if (nfa_dm_cb.disc_cb.kovio_tle.in_use) nfa_sys_stop_timer(&nfa_dm_cb.disc_cb.kovio_tle); nfa_rw_stop_presence_check_timer(); return true; } } } LOG(ERROR) << StringPrintf("invalid protocol, mode or state"); /* Notify error to application */ conn_evt.status = NFA_STATUS_FAILED; nfa_dm_conn_cback_event_notify(NFA_DEACTIVATE_FAIL_EVT, &conn_evt); return true; } /******************************************************************************* ** ** Function nfa_dm_act_power_off_sleep ** ** Description Process power off sleep mode request ** ** Returns TRUE (message buffer to be freed by caller) ** *******************************************************************************/ bool nfa_dm_act_power_off_sleep(tNFA_DM_MSG* p_data) { DLOG_IF(INFO, nfc_debug_enabled) << __func__; NFC_SetPowerOffSleep((bool)(p_data->hdr.layer_specific)); return true; } /******************************************************************************* ** ** Function nfa_dm_act_reg_vsc ** ** Description Process registers VSC callback ** ** Returns TRUE (message buffer to be freed by caller) ** *******************************************************************************/ bool nfa_dm_act_reg_vsc(tNFA_DM_MSG* p_data) { if (NFC_RegVSCback(p_data->reg_vsc.is_register, p_data->reg_vsc.p_cback) != NFC_STATUS_OK) { LOG(ERROR) << StringPrintf("NFC_RegVSCback failed"); } return true; } /******************************************************************************* ** ** Function nfa_dm_act_send_vsc ** ** Description Send the NCI Vendor Specific command to the NCI command ** queue ** ** Returns FALSE (message buffer is NOT freed by caller) ** *******************************************************************************/ bool nfa_dm_act_send_vsc(tNFA_DM_MSG* p_data) { NFC_HDR* p_cmd = (NFC_HDR*)p_data; p_cmd->offset = sizeof(tNFA_DM_API_SEND_VSC) - NFC_HDR_SIZE; p_cmd->len = p_data->send_vsc.cmd_params_len; NFC_SendVsCommand(p_data->send_vsc.oid, p_cmd, p_data->send_vsc.p_cback); /* Most dm action functions return TRUE, so nfa-sys frees the GKI buffer * carrying the message, This action function re-use the GKI buffer to * send the VSC, so the GKI buffer can not be freed by nfa-sys */ return false; } /******************************************************************************* ** ** Function nfa_dm_act_send_raw_vs ** ** Description Send the raw vs command to the NCI command queue ** ** Returns FALSE (message buffer is NOT freed by caller) ** *******************************************************************************/ bool nfa_dm_act_send_raw_vs(tNFA_DM_MSG* p_data) { NFC_HDR* p_cmd = (NFC_HDR*)p_data; p_cmd->offset = sizeof(tNFA_DM_API_SEND_VSC) - NFC_HDR_SIZE; p_cmd->len = p_data->send_vsc.cmd_params_len; NFC_SendRawVsCommand(p_cmd, p_data->send_vsc.p_cback); /* Most dm action functions return TRUE, so nfa-sys frees the GKI buffer * carrying the message, * This action function re-use the GKI buffer to send the VSC, so the GKI * buffer can not be freed by nfa-sys */ return false; } /******************************************************************************* ** ** Function nfa_dm_start_polling ** ** Description Start polling ** ** Returns tNFA_STATUS ** *******************************************************************************/ tNFA_STATUS nfa_dm_start_polling(void) { tNFA_STATUS status; tNFA_TECHNOLOGY_MASK poll_tech_mask; tNFA_DM_DISC_TECH_PROTO_MASK poll_disc_mask = 0; DLOG_IF(INFO, nfc_debug_enabled) << __func__; poll_tech_mask = nfa_dm_cb.poll_mask; /* start RF discovery with discovery callback */ if (nfa_dm_cb.poll_disc_handle == NFA_HANDLE_INVALID) { if (poll_tech_mask & NFA_TECHNOLOGY_MASK_A) { poll_disc_mask |= NFA_DM_DISC_MASK_PA_T1T; poll_disc_mask |= NFA_DM_DISC_MASK_PA_T2T; poll_disc_mask |= NFA_DM_DISC_MASK_PA_ISO_DEP; poll_disc_mask |= NFA_DM_DISC_MASK_PA_NFC_DEP; poll_disc_mask |= NFA_DM_DISC_MASK_P_LEGACY; } if (NFC_GetNCIVersion() == NCI_VERSION_2_0) { if (poll_tech_mask & NFA_TECHNOLOGY_MASK_ACTIVE) { poll_disc_mask |= NFA_DM_DISC_MASK_PACM_NFC_DEP; } } else { if (poll_tech_mask & NFA_TECHNOLOGY_MASK_A_ACTIVE) { poll_disc_mask |= NFA_DM_DISC_MASK_PAA_NFC_DEP; } if (poll_tech_mask & NFA_TECHNOLOGY_MASK_F_ACTIVE) { poll_disc_mask |= NFA_DM_DISC_MASK_PFA_NFC_DEP; } } if (poll_tech_mask & NFA_TECHNOLOGY_MASK_B) { poll_disc_mask |= NFA_DM_DISC_MASK_PB_ISO_DEP; } if (poll_tech_mask & NFA_TECHNOLOGY_MASK_F) { poll_disc_mask |= NFA_DM_DISC_MASK_PF_T3T; poll_disc_mask |= NFA_DM_DISC_MASK_PF_NFC_DEP; } if (poll_tech_mask & NFA_TECHNOLOGY_MASK_V) { poll_disc_mask |= NFA_DM_DISC_MASK_P_T5T; } if (poll_tech_mask & NFA_TECHNOLOGY_MASK_B_PRIME) { poll_disc_mask |= NFA_DM_DISC_MASK_P_B_PRIME; } if (poll_tech_mask & NFA_TECHNOLOGY_MASK_KOVIO) { poll_disc_mask |= NFA_DM_DISC_MASK_P_KOVIO; } nfa_dm_cb.poll_disc_handle = nfa_dm_add_rf_discover( poll_disc_mask, NFA_DM_DISC_HOST_ID_DH, nfa_dm_poll_disc_cback); if (nfa_dm_cb.poll_disc_handle != NFA_HANDLE_INVALID) status = NFA_STATUS_OK; else status = NFA_STATUS_FAILED; } else { status = NFA_STATUS_OK; } return (status); } /******************************************************************************* ** ** Function nfa_dm_act_enable_polling ** ** Description Process enable polling command ** ** Returns TRUE (message buffer to be freed by caller) ** *******************************************************************************/ bool nfa_dm_act_enable_polling(tNFA_DM_MSG* p_data) { tNFA_CONN_EVT_DATA evt_data; DLOG_IF(INFO, nfc_debug_enabled) << __func__; if ((!(nfa_dm_cb.flags & NFA_DM_FLAGS_POLLING_ENABLED)) && (!(nfa_dm_cb.flags & NFA_DM_FLAGS_EXCL_RF_ACTIVE))) { nfa_dm_cb.poll_mask = p_data->enable_poll.poll_mask; if (nfa_dm_start_polling() == NFA_STATUS_OK) { nfa_dm_cb.flags |= NFA_DM_FLAGS_POLLING_ENABLED; evt_data.status = NFA_STATUS_OK; nfa_dm_conn_cback_event_notify(NFA_POLL_ENABLED_EVT, &evt_data); return true; } } else { LOG(ERROR) << StringPrintf("already started"); } /* send NFA_POLL_ENABLED_EVT with NFA_STATUS_FAILED */ evt_data.status = NFA_STATUS_FAILED; nfa_dm_conn_cback_event_notify(NFA_POLL_ENABLED_EVT, &evt_data); return true; } /******************************************************************************* ** ** Function nfa_dm_deactivate_polling ** ** Description Deactivate any polling state ** ** Returns TRUE if need to wait for deactivation ** *******************************************************************************/ static bool nfa_dm_deactivate_polling(void) { DLOG_IF(INFO, nfc_debug_enabled) << __func__; if ((nfa_dm_cb.disc_cb.disc_state == NFA_DM_RFST_W4_ALL_DISCOVERIES) || (nfa_dm_cb.disc_cb.disc_state == NFA_DM_RFST_W4_HOST_SELECT)) { nfa_dm_rf_deactivate(NFA_DEACTIVATE_TYPE_IDLE); return false; } else if (nfa_dm_cb.disc_cb.disc_state == NFA_DM_RFST_POLL_ACTIVE) { if (nfa_dm_cb.disc_cb.activated_protocol == NFC_PROTOCOL_NFC_DEP) { /* NFA P2P will deactivate NFC link after deactivating LLCP link */ nfa_p2p_deactivate_llcp(); } else { nfa_dm_rf_deactivate(NFA_DEACTIVATE_TYPE_IDLE); } return true; } else { return false; } } /******************************************************************************* ** ** Function nfa_dm_act_disable_polling ** ** Description Process disable polling command ** ** Returns TRUE (message buffer to be freed by caller) ** *******************************************************************************/ bool nfa_dm_act_disable_polling(__attribute__((unused)) tNFA_DM_MSG* p_data) { tNFA_CONN_EVT_DATA evt_data; DLOG_IF(INFO, nfc_debug_enabled) << __func__; if (nfa_dm_cb.poll_disc_handle != NFA_HANDLE_INVALID) { nfa_dm_cb.flags &= ~NFA_DM_FLAGS_POLLING_ENABLED; if (nfa_dm_deactivate_polling() == false) { nfa_dm_delete_rf_discover(nfa_dm_cb.poll_disc_handle); nfa_dm_cb.poll_disc_handle = NFA_HANDLE_INVALID; evt_data.status = NFA_STATUS_OK; nfa_dm_conn_cback_event_notify(NFA_POLL_DISABLED_EVT, &evt_data); } else { nfa_dm_cb.flags |= NFA_DM_FLAGS_SEND_POLL_STOP_EVT; } } else { evt_data.status = NFA_STATUS_FAILED; nfa_dm_conn_cback_event_notify(NFA_POLL_DISABLED_EVT, &evt_data); } return true; } /******************************************************************************* ** ** Function nfa_dm_act_enable_listening ** ** Description Process enable listening command ** ** Returns TRUE (message buffer to be freed by caller) ** *******************************************************************************/ bool nfa_dm_act_enable_listening(__attribute__((unused)) tNFA_DM_MSG* p_data) { tNFA_CONN_EVT_DATA evt_data; DLOG_IF(INFO, nfc_debug_enabled) << __func__; nfa_dm_cb.flags &= ~NFA_DM_FLAGS_LISTEN_DISABLED; evt_data.status = NFA_STATUS_OK; nfa_dm_conn_cback_event_notify(NFA_LISTEN_ENABLED_EVT, &evt_data); return true; } /******************************************************************************* ** ** Function nfa_dm_act_disable_listening ** ** Description Process disable listening command ** ** Returns TRUE (message buffer to be freed by caller) ** *******************************************************************************/ bool nfa_dm_act_disable_listening(__attribute__((unused)) tNFA_DM_MSG* p_data) { tNFA_CONN_EVT_DATA evt_data; DLOG_IF(INFO, nfc_debug_enabled) << __func__; nfa_dm_cb.flags |= NFA_DM_FLAGS_LISTEN_DISABLED; evt_data.status = NFA_STATUS_OK; nfa_dm_conn_cback_event_notify(NFA_LISTEN_DISABLED_EVT, &evt_data); return true; } /******************************************************************************* ** ** Function nfa_dm_act_pause_p2p ** ** Description Process Pause P2P command ** ** Returns TRUE (message buffer to be freed by caller) ** *******************************************************************************/ bool nfa_dm_act_pause_p2p(__attribute__((unused)) tNFA_DM_MSG* p_data) { tNFA_CONN_EVT_DATA evt_data; DLOG_IF(INFO, nfc_debug_enabled) << __func__; nfa_dm_cb.flags |= NFA_DM_FLAGS_P2P_PAUSED; evt_data.status = NFA_STATUS_OK; nfa_dm_conn_cback_event_notify(NFA_P2P_PAUSED_EVT, &evt_data); return true; } /******************************************************************************* ** ** Function nfa_dm_act_resume_p2p ** ** Description Process resume P2P command ** ** Returns TRUE (message buffer to be freed by caller) ** *******************************************************************************/ bool nfa_dm_act_resume_p2p(__attribute__((unused)) tNFA_DM_MSG* p_data) { tNFA_CONN_EVT_DATA evt_data; DLOG_IF(INFO, nfc_debug_enabled) << __func__; nfa_dm_cb.flags &= ~NFA_DM_FLAGS_P2P_PAUSED; evt_data.status = NFA_STATUS_OK; nfa_dm_conn_cback_event_notify(NFA_P2P_RESUMED_EVT, &evt_data); return true; } /******************************************************************************* ** ** Function nfa_dm_act_send_raw_frame ** ** Description Send an raw frame on RF link ** ** Returns TRUE (message buffer to be freed by caller) ** *******************************************************************************/ bool nfa_dm_act_send_raw_frame(tNFA_DM_MSG* p_data) { tNFC_STATUS status = NFC_STATUS_FAILED; DLOG_IF(INFO, nfc_debug_enabled) << __func__; /* If NFC link is activated */ if ((nfa_dm_cb.disc_cb.disc_state == NFA_DM_RFST_POLL_ACTIVE) || (nfa_dm_cb.disc_cb.disc_state == NFA_DM_RFST_LISTEN_ACTIVE)) { nfa_dm_cb.flags |= NFA_DM_FLAGS_RAW_FRAME; NFC_SetReassemblyFlag(false); /* If not in exclusive mode, and not activated for LISTEN, then forward raw * data to NFA_RW to send */ if (!(nfa_dm_cb.flags & NFA_DM_FLAGS_EXCL_RF_ACTIVE) && !(nfa_dm_cb.disc_cb.disc_state == NFA_DM_RFST_LISTEN_ACTIVE) && ((nfa_dm_cb.disc_cb.activated_protocol == NFA_PROTOCOL_T1T) || (nfa_dm_cb.disc_cb.activated_protocol == NFA_PROTOCOL_T2T) || (nfa_dm_cb.disc_cb.activated_protocol == NFA_PROTOCOL_T3T) || (nfa_dm_cb.disc_cb.activated_protocol == NFA_PROTOCOL_ISO_DEP) || (nfa_dm_cb.disc_cb.activated_protocol == NFA_PROTOCOL_T5T))) { /* if RW is checking presence then it will put into pending queue */ status = nfa_rw_send_raw_frame((NFC_HDR*)p_data); } else { status = NFC_SendData(NFC_RF_CONN_ID, (NFC_HDR*)p_data); if (status != NFC_STATUS_OK) { NFC_SetReassemblyFlag(true); } /* Already freed or NCI layer will free buffer */ return false; } } if (status == NFC_STATUS_FAILED) { NFC_SetReassemblyFlag(true); /* free the buffer */ return true; } else { /* NCI layer will free buffer */ return false; } } /******************************************************************************* ** ** Function nfa_dm_set_p2p_listen_tech ** ** Description Notify change of P2P listen technologies to NFA P2P ** ** Returns TRUE (message buffer to be freed by caller) ** *******************************************************************************/ bool nfa_dm_set_p2p_listen_tech(tNFA_DM_MSG* p_data) { DLOG_IF(INFO, nfc_debug_enabled) << StringPrintf("tech_mask = %d", p_data->set_p2p_listen_tech.tech_mask); nfa_p2p_update_listen_tech(p_data->set_p2p_listen_tech.tech_mask); nfa_dm_conn_cback_event_notify(NFA_SET_P2P_LISTEN_TECH_EVT, NULL); return true; } /******************************************************************************* ** ** Function nfa_dm_act_start_rf_discovery ** ** Description Process start RF discovery command ** ** Returns TRUE (message buffer to be freed by caller) ** *******************************************************************************/ bool nfa_dm_act_start_rf_discovery(__attribute__((unused)) tNFA_DM_MSG* p_data) { tNFA_CONN_EVT_DATA evt_data; DLOG_IF(INFO, nfc_debug_enabled) << __func__; if (nfa_dm_cb.disc_cb.disc_flags & NFA_DM_DISC_FLAGS_ENABLED) { evt_data.status = NFA_STATUS_OK; nfa_dm_conn_cback_event_notify(NFA_RF_DISCOVERY_STARTED_EVT, &evt_data); } else if (nfa_dm_cb.disc_cb.disc_state != NFA_DM_RFST_IDLE) { evt_data.status = NFA_STATUS_SEMANTIC_ERROR; nfa_dm_conn_cback_event_notify(NFA_RF_DISCOVERY_STARTED_EVT, &evt_data); } else { nfa_dm_cb.disc_cb.disc_flags |= (NFA_DM_DISC_FLAGS_ENABLED | NFA_DM_DISC_FLAGS_NOTIFY); nfa_dm_start_rf_discover(); } return true; } /******************************************************************************* ** ** Function nfa_dm_act_stop_rf_discovery ** ** Description Process stop RF discovery command ** ** Returns TRUE (message buffer to be freed by caller) ** *******************************************************************************/ bool nfa_dm_act_stop_rf_discovery(__attribute__((unused)) tNFA_DM_MSG* p_data) { tNFA_CONN_EVT_DATA evt_data; DLOG_IF(INFO, nfc_debug_enabled) << __func__; if (!(nfa_dm_cb.disc_cb.disc_flags & NFA_DM_DISC_FLAGS_ENABLED) || (nfa_dm_cb.disc_cb.disc_state == NFA_DM_RFST_IDLE)) { nfa_dm_cb.disc_cb.disc_flags &= ~NFA_DM_DISC_FLAGS_ENABLED; /* if discover command has been sent in IDLE state and waiting for response */ if (nfa_dm_cb.disc_cb.disc_flags & NFA_DM_DISC_FLAGS_W4_RSP) { nfa_dm_cb.disc_cb.disc_flags |= NFA_DM_DISC_FLAGS_STOPPING; } else { evt_data.status = NFA_STATUS_OK; nfa_dm_conn_cback_event_notify(NFA_RF_DISCOVERY_STOPPED_EVT, &evt_data); } } else { nfa_dm_cb.disc_cb.disc_flags &= ~NFA_DM_DISC_FLAGS_ENABLED; nfa_dm_cb.disc_cb.disc_flags |= NFA_DM_DISC_FLAGS_STOPPING; if (nfa_dm_rf_deactivate(NFA_DEACTIVATE_TYPE_IDLE) == NFA_STATUS_OK) { if (nfa_dm_cb.disc_cb.kovio_tle.in_use) nfa_sys_stop_timer(&nfa_dm_cb.disc_cb.kovio_tle); nfa_rw_stop_presence_check_timer(); } } return true; } /******************************************************************************* ** ** Function nfa_dm_act_set_rf_disc_duration ** ** Description Set duration for RF discovery ** ** Returns TRUE (message buffer to be freed by caller) ** *******************************************************************************/ bool nfa_dm_act_set_rf_disc_duration(tNFA_DM_MSG* p_data) { nfa_dm_cb.disc_cb.disc_duration = p_data->disc_duration.rf_disc_dur_ms; return true; } /******************************************************************************* ** ** Function nfa_dm_act_get_rf_disc_duration ** ** Description Get duration for RF discovery ** ** Returns uint16_t ** *******************************************************************************/ uint16_t nfa_dm_act_get_rf_disc_duration() { return (nfa_dm_cb.disc_cb.disc_duration); } /******************************************************************************* ** ** Function nfa_dm_act_select ** ** Description Process RF select command ** ** Returns TRUE (message buffer to be freed by caller) ** *******************************************************************************/ bool nfa_dm_act_select(tNFA_DM_MSG* p_data) { DLOG_IF(INFO, nfc_debug_enabled) << __func__; nfa_dm_rf_discover_select(p_data->select.rf_disc_id, p_data->select.protocol, p_data->select.rf_interface); return true; } /******************************************************************************* ** ** Function nfa_dm_act_update_rf_params ** ** Description Process update RF communication parameters command ** ** Returns TRUE (message buffer to be freed by caller) ** *******************************************************************************/ bool nfa_dm_act_update_rf_params(tNFA_DM_MSG* p_data) { tNFA_CONN_EVT_DATA conn_evt; DLOG_IF(INFO, nfc_debug_enabled) << __func__; if (NFC_UpdateRFCommParams(&p_data->update_rf_params.params) != NFC_STATUS_OK) { conn_evt.status = NFA_STATUS_FAILED; nfa_dm_conn_cback_event_notify(NFA_UPDATE_RF_PARAM_RESULT_EVT, &conn_evt); } return true; } /******************************************************************************* ** ** Function nfa_dm_act_disable_timeout ** ** Description timeout on disable process. Shutdown immediately ** ** Returns TRUE (message buffer to be freed by caller) ** *******************************************************************************/ bool nfa_dm_act_disable_timeout(__attribute__((unused)) tNFA_DM_MSG* p_data) { tNFA_DM_MSG nfa_dm_msg; nfa_dm_msg.disable.graceful = false; nfa_dm_disable(&nfa_dm_msg); return true; } /******************************************************************************* ** ** Function nfa_dm_act_conn_cback_notify ** ** Description Notify app of reader/writer/ndef events ** ** Returns nothing ** *******************************************************************************/ void nfa_dm_act_conn_cback_notify(uint8_t event, tNFA_CONN_EVT_DATA* p_data) { DLOG_IF(INFO, nfc_debug_enabled) << StringPrintf("event:0x%X", event); /* Notify event using appropriate CONN_CBACK */ nfa_dm_conn_cback_event_notify(event, p_data); /* If not in exclusive RF mode, then read NDEF message from tag (if automatic * reading is enabled) */ if (!(nfa_dm_cb.flags & NFA_DM_FLAGS_EXCL_RF_ACTIVE)) { if ((event == NFA_NDEF_DETECT_EVT) && (nfa_dm_cb.flags & NFA_DM_FLAGS_AUTO_READING_NDEF)) { /* read NDEF message from tag */ if (p_data->ndef_detect.status == NFA_STATUS_OK) { NFA_RwReadNDef(); } else if (p_data->ndef_detect.status == NFA_STATUS_FAILED) { nfa_dm_cb.flags &= ~NFA_DM_FLAGS_AUTO_READING_NDEF; } /* ignore NFA_STATUS_BUSY */ } else if ((event == NFA_READ_CPLT_EVT) && (nfa_dm_cb.flags & NFA_DM_FLAGS_AUTO_READING_NDEF)) { /* reading NDEF message is done */ nfa_dm_cb.flags &= ~NFA_DM_FLAGS_AUTO_READING_NDEF; } } } /******************************************************************************* ** ** Function nfa_dm_act_data_cback ** ** Description Processing data from RF link ** ** Returns None ** *******************************************************************************/ static void nfa_dm_act_data_cback(__attribute__((unused)) uint8_t conn_id, tNFC_CONN_EVT event, tNFC_CONN* p_data) { NFC_HDR* p_msg; tNFA_CONN_EVT_DATA evt_data; DLOG_IF(INFO, nfc_debug_enabled) << StringPrintf("event = 0x%X", event); if (event == NFC_DATA_CEVT) { p_msg = (NFC_HDR*)p_data->data.p_data; if (p_msg) { evt_data.data.status = p_data->data.status; evt_data.data.p_data = (uint8_t*)(p_msg + 1) + p_msg->offset; evt_data.data.len = p_msg->len; nfa_dm_conn_cback_event_notify(NFA_DATA_EVT, &evt_data); GKI_freebuf(p_msg); } else { LOG(ERROR) << StringPrintf( "received NFC_DATA_CEVT with NULL data " "pointer"); } } else if (event == NFC_DEACTIVATE_CEVT) { NFC_SetStaticRfCback(NULL); } } /******************************************************************************* ** ** Function nfa_dm_excl_disc_cback ** ** Description Processing event from discovery callback ** ** Returns None ** *******************************************************************************/ static void nfa_dm_excl_disc_cback(tNFA_DM_RF_DISC_EVT event, tNFC_DISCOVER* p_data) { tNFA_CONN_EVT_DATA evt_data; DLOG_IF(INFO, nfc_debug_enabled) << StringPrintf("event:0x%02X", event); switch (event) { case NFA_DM_RF_DISC_START_EVT: evt_data.status = NFA_STATUS_OK; nfa_dm_conn_cback_event_notify(NFA_EXCLUSIVE_RF_CONTROL_STARTED_EVT, &evt_data); break; case NFA_DM_RF_DISC_ACTIVATED_EVT: if (nfa_dm_cb.disc_cb.activated_tech_mode == NFC_DISCOVERY_TYPE_POLL_A) { /* store SEL_RES response */ nfa_dm_cb.disc_cb.activated_sel_res = p_data->activate.rf_tech_param.param.pa.sel_rsp; } if (nfa_dm_cb.disc_cb.disc_state == NFA_DM_RFST_LISTEN_ACTIVE) { /* Set data callback to receive raw frame */ NFC_SetStaticRfCback(nfa_dm_act_data_cback); memset(&(evt_data.activated.params), 0x00, sizeof(tNFA_TAG_PARAMS)); memcpy(&(evt_data.activated.activate_ntf), &(p_data->activate), sizeof(tNFC_ACTIVATE_DEVT)); nfa_dm_conn_cback_event_notify(NFA_ACTIVATED_EVT, &evt_data); } else { /* holding activation notification until sub-module is ready */ nfa_dm_cb.p_activate_ntf = (uint8_t*)GKI_getbuf(sizeof(tNFC_ACTIVATE_DEVT)); if (nfa_dm_cb.p_activate_ntf) { memcpy(nfa_dm_cb.p_activate_ntf, &(p_data->activate), sizeof(tNFC_ACTIVATE_DEVT)); if ((nfa_dm_cb.disc_cb.activated_protocol == NFC_PROTOCOL_T1T) || (nfa_dm_cb.disc_cb.activated_protocol == NFC_PROTOCOL_T2T) || (nfa_dm_cb.disc_cb.activated_protocol == NFC_PROTOCOL_T3T) || (nfa_dm_cb.disc_cb.activated_protocol == NFC_PROTOCOL_ISO_DEP) || (nfa_dm_cb.disc_cb.activated_protocol == NFA_PROTOCOL_T5T) || (nfa_dm_cb.disc_cb.activated_protocol == NFC_PROTOCOL_KOVIO)) { /* Notify NFA tag sub-system */ nfa_rw_proc_disc_evt(NFA_DM_RF_DISC_ACTIVATED_EVT, p_data, false); } else /* if NFC-DEP, ISO-DEP with frame interface or others */ { /* Set data callback to receive raw frame */ NFC_SetStaticRfCback(nfa_dm_act_data_cback); nfa_dm_notify_activation_status(NFA_STATUS_OK, NULL); } } else { /* deactivate and restart RF discovery */ nfa_dm_rf_deactivate(NFA_DEACTIVATE_TYPE_DISCOVERY); } } break; case NFA_DM_RF_DISC_DEACTIVATED_EVT: /* if deactivated to idle or discovery */ if ((p_data->deactivate.type == NFC_DEACTIVATE_TYPE_IDLE) || (p_data->deactivate.type == NFC_DEACTIVATE_TYPE_DISCOVERY)) { /* clear stored NFCID/UID/KOVIO bar code */ nfa_dm_cb.activated_nfcid_len = 0; } if (nfa_dm_cb.disc_cb.activated_protocol != NFC_PROTOCOL_NFC_DEP) { /* Notify NFA RW sub-systems */ nfa_rw_proc_disc_evt(NFA_DM_RF_DISC_DEACTIVATED_EVT, NULL, false); } /* if deactivated as sleep mode */ if ((p_data->deactivate.type == NFC_DEACTIVATE_TYPE_SLEEP) || (p_data->deactivate.type == NFC_DEACTIVATE_TYPE_SLEEP_AF)) { evt_data.deactivated.type = NFA_DEACTIVATE_TYPE_SLEEP; } else { evt_data.deactivated.type = NFA_DEACTIVATE_TYPE_IDLE; } /* notify deactivation to upper layer */ nfa_dm_conn_cback_event_notify(NFA_DEACTIVATED_EVT, &evt_data); /* clean up SEL_RES response */ nfa_dm_cb.disc_cb.activated_sel_res = 0; break; default: LOG(ERROR) << StringPrintf("Unexpected event"); break; } } /******************************************************************************* ** ** Function nfa_dm_poll_disc_cback ** ** Description Processing event from discovery callback ** ** Returns None ** *******************************************************************************/ static void nfa_dm_poll_disc_cback(tNFA_DM_RF_DISC_EVT event, tNFC_DISCOVER* p_data) { tNFA_CONN_EVT_DATA evt_data; DLOG_IF(INFO, nfc_debug_enabled) << StringPrintf("event:0x%02X", event); switch (event) { case NFA_DM_RF_DISC_START_EVT: break; case NFA_DM_RF_DISC_ACTIVATED_EVT: if (nfa_dm_cb.disc_cb.activated_tech_mode == NFC_DISCOVERY_TYPE_POLL_A) { /* store SEL_RES response */ nfa_dm_cb.disc_cb.activated_sel_res = p_data->activate.rf_tech_param.param.pa.sel_rsp; } /* holding activation notification until sub-module is ready */ nfa_dm_cb.p_activate_ntf = (uint8_t*)GKI_getbuf(sizeof(tNFC_ACTIVATE_DEVT)); if (nfa_dm_cb.p_activate_ntf) { memcpy(nfa_dm_cb.p_activate_ntf, &(p_data->activate), sizeof(tNFC_ACTIVATE_DEVT)); if ((nfa_dm_cb.disc_cb.activated_protocol == NFC_PROTOCOL_NFC_DEP) && (nfa_dm_cb.disc_cb.activated_rf_interface == NFC_INTERFACE_NFC_DEP)) { /* For P2P mode(Default DTA mode) open Raw channel to bypass LLCP * layer. For LLCP DTA mode activate LLCP */ if ((appl_dta_mode_flag == 1) && ((nfa_dm_cb.eDtaMode & 0x0F) == NFA_DTA_DEFAULT_MODE)) { /* Open raw channel in case of p2p for DTA testing */ NFC_SetStaticRfCback(nfa_dm_act_data_cback); nfa_dm_notify_activation_status(NFA_STATUS_OK, NULL); } else { if (!(nfa_dm_cb.flags & NFA_DM_FLAGS_P2P_PAUSED)) { /* activate LLCP */ nfa_p2p_activate_llcp(p_data); if (nfa_dm_cb.p_activate_ntf) { GKI_freebuf(nfa_dm_cb.p_activate_ntf); nfa_dm_cb.p_activate_ntf = NULL; } } else { DLOG_IF(INFO, nfc_debug_enabled) << StringPrintf("P2P is paused"); nfa_dm_notify_activation_status(NFA_STATUS_OK, NULL); } } } else if ((nfa_dm_cb.disc_cb.activated_protocol == NFC_PROTOCOL_T1T) || (nfa_dm_cb.disc_cb.activated_protocol == NFC_PROTOCOL_T2T) || (nfa_dm_cb.disc_cb.activated_protocol == NFC_PROTOCOL_T3T) || (nfa_dm_cb.disc_cb.activated_protocol == NFC_PROTOCOL_ISO_DEP) || (nfa_dm_cb.disc_cb.activated_protocol == NFC_PROTOCOL_T5T) || (nfa_dm_cb.disc_cb.activated_protocol == NFC_PROTOCOL_KOVIO) || (nfa_dm_cb.disc_cb.activated_protocol == NFC_PROTOCOL_MIFARE)) { /* Notify NFA tag sub-system */ nfa_rw_proc_disc_evt(NFA_DM_RF_DISC_ACTIVATED_EVT, p_data, true); } else /* if NFC-DEP/ISO-DEP with frame interface */ { /* Set data callback to receive raw frame */ NFC_SetStaticRfCback(nfa_dm_act_data_cback); nfa_dm_notify_activation_status(NFA_STATUS_OK, NULL); } } else { /* deactivate and restart RF discovery */ nfa_dm_rf_deactivate(NFA_DEACTIVATE_TYPE_DISCOVERY); } break; case NFA_DM_RF_DISC_DEACTIVATED_EVT: /* if deactivated to idle or discovery */ if ((p_data->deactivate.type == NFC_DEACTIVATE_TYPE_IDLE) || (p_data->deactivate.type == NFC_DEACTIVATE_TYPE_DISCOVERY)) { /* clear stored NFCID/UID/KOVIO bar code */ nfa_dm_cb.activated_nfcid_len = 0; } if ((nfa_dm_cb.disc_cb.activated_protocol == NFC_PROTOCOL_NFC_DEP) && (nfa_dm_cb.disc_cb.activated_rf_interface == NFC_INTERFACE_NFC_DEP)) { /* ** If LLCP link is not deactivated yet, ** LLCP will receive deactivation ntf through data callback. ** NFA P2P will receive callback event from LLCP. */ } else { /* Notify NFA RW sub-systems */ nfa_rw_proc_disc_evt(NFA_DM_RF_DISC_DEACTIVATED_EVT, NULL, true); } /* if NFA sent NFA_ACTIVATED_EVT earlier */ if (nfa_dm_cb.flags & NFA_DM_FLAGS_SEND_DEACTIVATED_EVT) { nfa_dm_cb.flags &= ~NFA_DM_FLAGS_SEND_DEACTIVATED_EVT; /* if deactivated as sleep mode */ if ((p_data->deactivate.type == NFC_DEACTIVATE_TYPE_SLEEP) || (p_data->deactivate.type == NFC_DEACTIVATE_TYPE_SLEEP_AF)) { evt_data.deactivated.type = NFA_DEACTIVATE_TYPE_SLEEP; } else { evt_data.deactivated.type = NFA_DEACTIVATE_TYPE_IDLE; } /* notify deactivation to application */ nfa_dm_conn_cback_event_notify(NFA_DEACTIVATED_EVT, &evt_data); } /* clean up SEL_RES response */ nfa_dm_cb.disc_cb.activated_sel_res = 0; if (!(nfa_dm_cb.flags & NFA_DM_FLAGS_POLLING_ENABLED)) { /* deregister discovery callback from NFA DM Discovery */ nfa_dm_delete_rf_discover(nfa_dm_cb.poll_disc_handle); nfa_dm_cb.poll_disc_handle = NFA_HANDLE_INVALID; /* this is for disable polling */ if (nfa_dm_cb.flags & NFA_DM_FLAGS_SEND_POLL_STOP_EVT) { nfa_dm_cb.flags &= ~NFA_DM_FLAGS_SEND_POLL_STOP_EVT; evt_data.status = NFA_STATUS_OK; nfa_dm_conn_cback_event_notify(NFA_POLL_DISABLED_EVT, &evt_data); } } break; } } /******************************************************************************* ** Function nfa_dm_poll_disc_cback_dta_wrapper ** ** Description Accessing the nfa_dm_poll_disc_cback for DTA wrapper ** ** Returns None ** *******************************************************************************/ void nfa_dm_poll_disc_cback_dta_wrapper(tNFA_DM_RF_DISC_EVT event, tNFC_DISCOVER* p_data) { nfa_dm_poll_disc_cback(event, p_data); } /******************************************************************************* ** ** Function nfa_dm_notify_activation_status ** ** Description Processing activation status from sub-modules ** ** Returns None ** *******************************************************************************/ void nfa_dm_notify_activation_status(tNFA_STATUS status, tNFA_TAG_PARAMS* p_params) { tNFA_CONN_EVT_DATA evt_data; tNFC_RF_TECH_PARAMS* p_tech_params; uint8_t *p_nfcid = NULL, nfcid_len; DLOG_IF(INFO, nfc_debug_enabled) << StringPrintf("status:0x%X", status); if (!nfa_dm_cb.p_activate_ntf) { /* this is for NFA P2P listen */ return; } if (status == NFA_STATUS_OK) { /* notify NFC link activation */ memcpy(&(evt_data.activated.activate_ntf), nfa_dm_cb.p_activate_ntf, sizeof(tNFC_ACTIVATE_DEVT)); p_tech_params = &evt_data.activated.activate_ntf.rf_tech_param; memset(&(evt_data.activated.params), 0x00, sizeof(tNFA_TAG_PARAMS)); if (p_params) { memcpy(&(evt_data.activated.params), p_params, sizeof(tNFA_TAG_PARAMS)); } /* get length of NFCID and location */ if (p_tech_params->mode == NFC_DISCOVERY_TYPE_POLL_A) { if ((p_tech_params->param.pa.nfcid1_len == 0) && (p_params != NULL)) { nfcid_len = sizeof(p_params->t1t.uid); p_nfcid = p_params->t1t.uid; evt_data.activated.activate_ntf.rf_tech_param.param.pa.nfcid1_len = nfcid_len; memcpy(evt_data.activated.activate_ntf.rf_tech_param.param.pa.nfcid1, p_nfcid, nfcid_len); } else { nfcid_len = p_tech_params->param.pa.nfcid1_len; p_nfcid = p_tech_params->param.pa.nfcid1; } } else if (p_tech_params->mode == NFC_DISCOVERY_TYPE_POLL_B) { nfcid_len = NFC_NFCID0_MAX_LEN; p_nfcid = p_tech_params->param.pb.nfcid0; } else if (p_tech_params->mode == NFC_DISCOVERY_TYPE_POLL_F) { nfcid_len = NFC_NFCID2_LEN; p_nfcid = p_tech_params->param.pf.nfcid2; } else if (p_tech_params->mode == NFC_DISCOVERY_TYPE_POLL_V) { nfcid_len = NFC_ISO15693_UID_LEN; p_nfcid = p_tech_params->param.pi93.uid; } else if (p_tech_params->mode == NFC_DISCOVERY_TYPE_POLL_KOVIO) { nfcid_len = p_tech_params->param.pk.uid_len; p_nfcid = p_tech_params->param.pk.uid; } else { nfcid_len = 0; } /* ** If not in exlusive RF mode, and ** P2P activation, then push default NDEF message through SNEP ** TAG activation, then read NDEF message */ if (nfa_dm_cb.disc_cb.activated_protocol == NFC_PROTOCOL_NFC_DEP) { /* ** Default NDEF message will be put to NFC Forum defualt SNEP server ** after receiving NFA_LLCP_ACTIVATED_EVT. */ } else if (!(nfa_dm_cb.flags & NFA_DM_FLAGS_EXCL_RF_ACTIVE)) { /* ** if the same tag is activated then do not perform auto NDEF ** detection. Application may put a tag into sleep mode and ** reactivate the same tag. */ if ((p_tech_params->mode != nfa_dm_cb.activated_tech_mode) || (nfcid_len != nfa_dm_cb.activated_nfcid_len) || (memcmp(p_nfcid, nfa_dm_cb.activated_nfcid, nfcid_len))) { if ((nfa_dm_cb.disc_cb.activated_protocol == NFC_PROTOCOL_T1T) || (nfa_dm_cb.disc_cb.activated_protocol == NFC_PROTOCOL_T2T) || (nfa_dm_cb.disc_cb.activated_protocol == NFC_PROTOCOL_T3T) || ((nfa_dm_cb.disc_cb.activated_protocol == NFC_PROTOCOL_ISO_DEP) && (nfa_dm_cb.disc_cb.activated_rf_interface == NFC_INTERFACE_ISO_DEP)) || (nfa_dm_cb.disc_cb.activated_protocol == NFA_PROTOCOL_T5T)) { if (p_nfa_dm_cfg->auto_detect_ndef) { if (p_nfa_dm_cfg->auto_read_ndef) { nfa_dm_cb.flags |= NFA_DM_FLAGS_AUTO_READING_NDEF; } NFA_RwDetectNDef(); } else if (p_nfa_dm_cfg->auto_read_ndef) { NFA_RwReadNDef(); } } } } /* store activated tag information */ nfa_dm_cb.activated_tech_mode = p_tech_params->mode; nfa_dm_cb.activated_nfcid_len = nfcid_len; if (nfcid_len) memcpy(nfa_dm_cb.activated_nfcid, p_nfcid, nfcid_len); nfa_dm_cb.flags |= NFA_DM_FLAGS_SEND_DEACTIVATED_EVT; if (!(nfa_dm_cb.disc_cb.disc_flags & NFA_DM_DISC_FLAGS_CHECKING)) nfa_dm_conn_cback_event_notify(NFA_ACTIVATED_EVT, &evt_data); } else { /* if NFC_DEP, NFA P2P will deactivate */ if (nfa_dm_cb.disc_cb.activated_protocol != NFC_PROTOCOL_NFC_DEP) { nfa_dm_rf_deactivate(NFA_DEACTIVATE_TYPE_DISCOVERY); } } GKI_freebuf(nfa_dm_cb.p_activate_ntf); nfa_dm_cb.p_activate_ntf = NULL; } /******************************************************************************* ** ** Function nfa_dm_nfc_revt_2_str ** ** Description convert nfc revt to string ** *******************************************************************************/ std::string nfa_dm_nfc_revt_2_str(tNFC_RESPONSE_EVT event) { switch (event) { case NFC_ENABLE_REVT: return "NFC_ENABLE_REVT"; case NFC_DISABLE_REVT: return "NFC_DISABLE_REVT"; case NFC_SET_CONFIG_REVT: return "NFC_SET_CONFIG_REVT"; case NFC_GET_CONFIG_REVT: return "NFC_GET_CONFIG_REVT"; case NFC_NFCEE_DISCOVER_REVT: return "NFC_NFCEE_DISCOVER_REVT"; case NFC_NFCEE_INFO_REVT: return "NFC_NFCEE_INFO_REVT"; case NFC_NFCEE_MODE_SET_REVT: return "NFC_NFCEE_MODE_SET_REVT"; case NFC_RF_FIELD_REVT: return "NFC_RF_FIELD_REVT"; case NFC_EE_ACTION_REVT: return "NFC_EE_ACTION_REVT"; case NFC_EE_DISCOVER_REQ_REVT: return "NFC_EE_DISCOVER_REQ_REVT"; case NFC_SET_ROUTING_REVT: return "NFC_SET_ROUTING_REVT"; case NFC_GET_ROUTING_REVT: return "NFC_GET_ROUTING_REVT"; case NFC_GEN_ERROR_REVT: return "NFC_GEN_ERROR_REVT"; case NFC_NFCC_RESTART_REVT: return "NFC_NFCC_RESTART_REVT"; case NFC_NFCC_TIMEOUT_REVT: return "NFC_NFCC_TIMEOUT_REVT"; case NFC_NFCC_TRANSPORT_ERR_REVT: return "NFC_NFCC_TRANSPORT_ERR_REVT"; case NFC_NFCC_POWER_OFF_REVT: return "NFC_NFCC_POWER_OFF_REVT"; case NFC_NFCEE_STATUS_REVT: return "NFC_NFCEE_STATUS_REVT"; default: return "unknown revt"; } }