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494 lines
14 KiB
494 lines
14 KiB
/******************************************************************************
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*
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* Copyright (C) 1999-2012 Broadcom Corporation
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* Copyright (C) 2013 ST Microelectronics S.A.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at:
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*
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* Modified by ST Microelectronics S.A. (adaptation of nfc_nci.c for ST21NFC
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*NCI version)
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*
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******************************************************************************/
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#include <cutils/properties.h>
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#include <errno.h>
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#include <hardware/nfc.h>
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#include <string.h>
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#include "StNfc_hal_api.h"
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#include "android_logmsg.h"
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#include "hal_config.h"
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#include "halcore.h"
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extern void HalCoreCallback(void* context, uint32_t event, const void* d,
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size_t length);
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extern bool I2cOpenLayer(void* dev, HAL_CALLBACK callb, HALHANDLE* pHandle);
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typedef struct {
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struct nfc_nci_device nci_device; // nci_device must be first struct member
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// below declarations are private variables within HAL
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nfc_stack_callback_t* p_cback;
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nfc_stack_data_callback_t* p_data_cback;
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HALHANDLE hHAL;
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nfc_stack_callback_t* p_cback_unwrap;
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} st21nfc_dev_t;
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const char* halVersion = "ST21NFC HAL1.1 Version 3.1.16";
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uint8_t cmd_set_nfc_mode_enable[] = {0x2f, 0x02, 0x02, 0x02, 0x01};
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uint8_t hal_is_closed = 1;
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pthread_mutex_t hal_mtx = PTHREAD_MUTEX_INITIALIZER;
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st21nfc_dev_t dev;
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uint8_t hal_dta_state = 0;
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int nfc_mode = 0;
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using namespace android::hardware::nfc::V1_1;
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using android::hardware::nfc::V1_1::NfcEvent;
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/*
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* NCI HAL method implementations. These must be overridden
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*/
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extern bool hal_wrapper_open(st21nfc_dev_t* dev, nfc_stack_callback_t* p_cback,
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nfc_stack_data_callback_t* p_data_cback,
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HALHANDLE* pHandle);
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extern int hal_wrapper_close(int call_cb, int nfc_mode);
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extern void hal_wrapper_send_config();
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extern void hal_wrapper_factoryReset();
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/* Make sure to always post nfc_stack_callback_t in a separate thread.
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This prevents a possible deadlock in upper layer on some sequences.
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We need to synchronize finely for the callback called for hal close,
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otherwise the upper layer either does not receive the event, or deadlocks,
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because the HAL is closing while the callback may be blocked.
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*/
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static struct async_callback_struct {
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pthread_mutex_t mutex;
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pthread_cond_t cond;
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pthread_t thr;
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int event_pending;
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int stop_thread;
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int thread_running;
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nfc_event_t event;
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nfc_status_t event_status;
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} async_callback_data;
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static void* async_callback_thread_fct(void* arg) {
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int ret;
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struct async_callback_struct* pcb_data = (struct async_callback_struct*)arg;
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ret = pthread_mutex_lock(&pcb_data->mutex);
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if (ret != 0) {
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STLOG_HAL_E("HAL: %s pthread_mutex_lock failed", __func__);
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goto error;
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}
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do {
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if (pcb_data->event_pending == 0) {
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ret = pthread_cond_wait(&pcb_data->cond, &pcb_data->mutex);
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if (ret != 0) {
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STLOG_HAL_E("HAL: %s pthread_cond_wait failed", __func__);
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break;
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}
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}
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if (pcb_data->event_pending) {
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nfc_event_t event = pcb_data->event;
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nfc_status_t event_status = pcb_data->event_status;
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int ending = pcb_data->stop_thread;
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pcb_data->event_pending = 0;
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ret = pthread_cond_signal(&pcb_data->cond);
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if (ret != 0) {
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STLOG_HAL_E("HAL: %s pthread_cond_signal failed", __func__);
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break;
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}
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if (ending) {
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pcb_data->thread_running = 0;
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}
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ret = pthread_mutex_unlock(&pcb_data->mutex);
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if (ret != 0) {
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STLOG_HAL_E("HAL: %s pthread_mutex_unlock failed", __func__);
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}
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STLOG_HAL_D("HAL st21nfc: %s event %hhx status %hhx", __func__, event,
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event_status);
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dev.p_cback_unwrap(event, event_status);
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if (ending) {
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return NULL;
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}
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ret = pthread_mutex_lock(&pcb_data->mutex);
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if (ret != 0) {
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STLOG_HAL_E("HAL: %s pthread_mutex_lock failed", __func__);
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goto error;
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}
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}
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} while (pcb_data->stop_thread == 0 || pcb_data->event_pending);
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ret = pthread_mutex_unlock(&pcb_data->mutex);
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if (ret != 0) {
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STLOG_HAL_E("HAL: %s pthread_mutex_unlock failed", __func__);
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}
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error:
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pcb_data->thread_running = 0;
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return NULL;
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}
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static int async_callback_thread_start() {
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int ret;
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memset(&async_callback_data, 0, sizeof(async_callback_data));
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ret = pthread_mutex_init(&async_callback_data.mutex, NULL);
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if (ret != 0) {
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STLOG_HAL_E("HAL: %s pthread_mutex_init failed", __func__);
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return ret;
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}
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ret = pthread_cond_init(&async_callback_data.cond, NULL);
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if (ret != 0) {
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STLOG_HAL_E("HAL: %s pthread_cond_init failed", __func__);
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return ret;
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}
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async_callback_data.thread_running = 1;
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ret = pthread_create(&async_callback_data.thr, NULL,
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async_callback_thread_fct, &async_callback_data);
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if (ret != 0) {
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STLOG_HAL_E("HAL: %s pthread_create failed", __func__);
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async_callback_data.thread_running = 0;
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return ret;
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}
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return 0;
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}
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static int async_callback_thread_end() {
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if (async_callback_data.thread_running != 0) {
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int ret;
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ret = pthread_mutex_lock(&async_callback_data.mutex);
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if (ret != 0) {
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STLOG_HAL_E("HAL: %s pthread_mutex_lock failed", __func__);
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return ret;
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}
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async_callback_data.stop_thread = 1;
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// Wait for the thread to have no event pending
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while (async_callback_data.thread_running &&
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async_callback_data.event_pending) {
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ret = pthread_cond_signal(&async_callback_data.cond);
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if (ret != 0) {
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STLOG_HAL_E("HAL: %s pthread_cond_signal failed", __func__);
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return ret;
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}
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ret = pthread_cond_wait(&async_callback_data.cond,
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&async_callback_data.mutex);
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if (ret != 0) {
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STLOG_HAL_E("HAL: %s pthread_cond_wait failed", __func__);
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break;
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}
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}
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ret = pthread_mutex_unlock(&async_callback_data.mutex);
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if (ret != 0) {
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STLOG_HAL_E("HAL: %s pthread_mutex_unlock failed", __func__);
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return ret;
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}
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ret = pthread_cond_signal(&async_callback_data.cond);
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if (ret != 0) {
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STLOG_HAL_E("HAL: %s pthread_cond_signal failed", __func__);
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return ret;
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}
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ret = pthread_detach(async_callback_data.thr);
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if (ret != 0) {
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STLOG_HAL_E("HAL: %s pthread_detach failed", __func__);
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return ret;
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}
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}
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return 0;
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}
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static void async_callback_post(nfc_event_t event, nfc_status_t event_status) {
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int ret;
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if (pthread_equal(pthread_self(), async_callback_data.thr)) {
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dev.p_cback_unwrap(event, event_status);
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}
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ret = pthread_mutex_lock(&async_callback_data.mutex);
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if (ret != 0) {
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STLOG_HAL_E("HAL: %s pthread_mutex_lock failed", __func__);
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return;
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}
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if (async_callback_data.thread_running == 0) {
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(void)pthread_mutex_unlock(&async_callback_data.mutex);
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STLOG_HAL_E("HAL: %s thread is not running", __func__);
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dev.p_cback_unwrap(event, event_status);
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return;
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}
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while (async_callback_data.event_pending) {
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ret = pthread_cond_wait(&async_callback_data.cond,
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&async_callback_data.mutex);
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if (ret != 0) {
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STLOG_HAL_E("HAL: %s pthread_cond_wait failed", __func__);
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return;
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}
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}
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async_callback_data.event_pending = 1;
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async_callback_data.event = event;
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async_callback_data.event_status = event_status;
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ret = pthread_mutex_unlock(&async_callback_data.mutex);
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if (ret != 0) {
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STLOG_HAL_E("HAL: %s pthread_mutex_unlock failed", __func__);
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return;
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}
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ret = pthread_cond_signal(&async_callback_data.cond);
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if (ret != 0) {
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STLOG_HAL_E("HAL: %s pthread_cond_signal failed", __func__);
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return;
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}
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}
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/* ------ */
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int StNfc_hal_open(nfc_stack_callback_t* p_cback,
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nfc_stack_data_callback_t* p_data_cback) {
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bool result = false;
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STLOG_HAL_D("HAL st21nfc: %s %s", __func__, halVersion);
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(void)pthread_mutex_lock(&hal_mtx);
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if (!hal_is_closed) {
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hal_wrapper_close(0, nfc_mode);
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}
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dev.p_cback = p_cback; // will be replaced by wrapper version
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dev.p_cback_unwrap = p_cback;
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dev.p_data_cback = p_data_cback;
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hal_dta_state = 0;
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// Initialize and get global logging level
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InitializeSTLogLevel();
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if ((hal_is_closed || !async_callback_data.thread_running) &&
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(async_callback_thread_start() != 0)) {
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dev.p_cback(HAL_NFC_OPEN_CPLT_EVT, HAL_NFC_STATUS_FAILED);
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(void)pthread_mutex_unlock(&hal_mtx);
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return -1; // We are doomed, stop it here, NOW !
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}
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result =
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hal_wrapper_open(&dev, async_callback_post, p_data_cback, &(dev.hHAL));
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if (!result || !(dev.hHAL)) {
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async_callback_post(HAL_NFC_OPEN_CPLT_EVT, HAL_NFC_STATUS_FAILED);
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(void)pthread_mutex_unlock(&hal_mtx);
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return -1; // We are doomed, stop it here, NOW !
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}
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hal_is_closed = 0;
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(void)pthread_mutex_unlock(&hal_mtx);
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return 0;
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}
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int StNfc_hal_write(uint16_t data_len, const uint8_t* p_data) {
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STLOG_HAL_D("HAL st21nfc: %s", __func__);
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/* check if HAL is closed */
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int ret = (int)data_len;
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(void)pthread_mutex_lock(&hal_mtx);
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if (hal_is_closed) {
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ret = 0;
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}
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if (!ret) {
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(void)pthread_mutex_unlock(&hal_mtx);
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return ret;
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}
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if (!HalSendDownstream(dev.hHAL, p_data, data_len)) {
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STLOG_HAL_E("HAL st21nfc %s SendDownstream failed", __func__);
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(void)pthread_mutex_unlock(&hal_mtx);
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return 0;
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}
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(void)pthread_mutex_unlock(&hal_mtx);
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return ret;
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}
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int StNfc_hal_core_initialized(uint8_t* p_core_init_rsp_params) {
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STLOG_HAL_D("HAL st21nfc: %s", __func__);
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(void)pthread_mutex_lock(&hal_mtx);
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hal_dta_state = *p_core_init_rsp_params;
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hal_wrapper_send_config();
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(void) pthread_mutex_unlock(&hal_mtx);
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return 0; // return != 0 to signal ready immediate
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}
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int StNfc_hal_pre_discover() {
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STLOG_HAL_D("HAL st21nfc: %s", __func__);
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return 0; // false if no vendor-specific pre-discovery actions are needed
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}
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int StNfc_hal_close(int nfc_mode_value) {
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STLOG_HAL_D("HAL st21nfc: %s nfc_mode = %d", __func__, nfc_mode_value);
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/* check if HAL is closed */
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(void)pthread_mutex_lock(&hal_mtx);
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if (hal_is_closed) {
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(void)pthread_mutex_unlock(&hal_mtx);
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return 1;
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}
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if (hal_wrapper_close(1, nfc_mode_value) == 0) {
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hal_is_closed = 1;
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(void)pthread_mutex_unlock(&hal_mtx);
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return 1;
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}
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hal_is_closed = 1;
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(void)pthread_mutex_unlock(&hal_mtx);
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hal_dta_state = 0;
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deInitializeHalLog();
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if (async_callback_thread_end() != 0) {
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STLOG_HAL_E("HAL st21nfc: %s async_callback_thread_end failed", __func__);
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return -1; // We are doomed, stop it here, NOW !
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}
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usleep(10000); // give 10ms for the callback thread to pass the binder
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STLOG_HAL_D("HAL st21nfc: %s close", __func__);
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return 0;
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}
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int StNfc_hal_control_granted() {
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STLOG_HAL_D("HAL st21nfc: %s", __func__);
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return 0;
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}
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int StNfc_hal_power_cycle() {
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STLOG_HAL_D("HAL st21nfc: %s", __func__);
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/* check if HAL is closed */
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int ret = HAL_NFC_STATUS_OK;
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(void)pthread_mutex_lock(&hal_mtx);
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if (hal_is_closed) {
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ret = HAL_NFC_STATUS_FAILED;
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}
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if (ret != HAL_NFC_STATUS_OK) {
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(void)pthread_mutex_unlock(&hal_mtx);
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return ret;
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}
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async_callback_post(HAL_NFC_OPEN_CPLT_EVT, HAL_NFC_STATUS_OK);
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(void)pthread_mutex_unlock(&hal_mtx);
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return HAL_NFC_STATUS_OK;
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}
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void StNfc_hal_factoryReset() {
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STLOG_HAL_D("HAL st21nfc: %s", __func__);
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//hal_wrapper_factoryReset();
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// Nothing needed for factory reset in st21nfc case.
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}
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int StNfc_hal_closeForPowerOffCase() {
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STLOG_HAL_D("HAL st21nfc: %s", __func__);
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return StNfc_hal_close(nfc_mode);
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}
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void StNfc_hal_getConfig(NfcConfig& config) {
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STLOG_HAL_D("HAL st21nfc: %s", __func__);
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unsigned long num = 0;
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std::array<uint8_t, 10> buffer;
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buffer.fill(0);
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long retlen = 0;
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memset(&config, 0x00, sizeof(NfcConfig));
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if (GetNumValue(NAME_CE_ON_SWITCH_OFF_STATE, &num, sizeof(num))) {
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if (num == 0x1) {
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nfc_mode = 0x2;
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}
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}
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if (GetNumValue(NAME_POLL_BAIL_OUT_MODE, &num, sizeof(num))) {
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config.nfaPollBailOutMode = num;
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}
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if (GetNumValue(NAME_ISO_DEP_MAX_TRANSCEIVE, &num, sizeof(num))) {
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config.maxIsoDepTransceiveLength = num;
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}
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if (GetNumValue(NAME_DEFAULT_OFFHOST_ROUTE, &num, sizeof(num))) {
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config.defaultOffHostRoute = num;
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}
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if (GetNumValue(NAME_DEFAULT_NFCF_ROUTE, &num, sizeof(num))) {
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config.defaultOffHostRouteFelica = num;
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}
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if (GetNumValue(NAME_DEFAULT_SYS_CODE_ROUTE, &num, sizeof(num))) {
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config.defaultSystemCodeRoute = num;
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}
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if (GetNumValue(NAME_DEFAULT_SYS_CODE_PWR_STATE, &num, sizeof(num))) {
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config.defaultSystemCodePowerState = num;
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}
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if (GetNumValue(NAME_DEFAULT_ROUTE, &num, sizeof(num))) {
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config.defaultRoute = num;
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}
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if (GetByteArrayValue(NAME_DEVICE_HOST_WHITE_LIST, (char*)buffer.data(),
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buffer.size(), &retlen)) {
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config.hostWhitelist.resize(retlen);
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for (int i = 0; i < retlen; i++) {
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config.hostWhitelist[i] = buffer[i];
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}
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}
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if (GetNumValue(NAME_OFF_HOST_ESE_PIPE_ID, &num, sizeof(num))) {
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config.offHostESEPipeId = num;
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}
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if (GetNumValue(NAME_OFF_HOST_SIM_PIPE_ID, &num, sizeof(num))) {
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config.offHostSIMPipeId = num;
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}
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if ((GetByteArrayValue(NAME_NFA_PROPRIETARY_CFG, (char*)buffer.data(),
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buffer.size(), &retlen)) &&
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(retlen == 9)) {
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config.nfaProprietaryCfg.protocol18092Active = (uint8_t)buffer[0];
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config.nfaProprietaryCfg.protocolBPrime = (uint8_t)buffer[1];
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config.nfaProprietaryCfg.protocolDual = (uint8_t)buffer[2];
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config.nfaProprietaryCfg.protocol15693 = (uint8_t)buffer[3];
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|
config.nfaProprietaryCfg.protocolKovio = (uint8_t)buffer[4];
|
|
config.nfaProprietaryCfg.protocolMifare = (uint8_t)buffer[5];
|
|
config.nfaProprietaryCfg.discoveryPollKovio = (uint8_t)buffer[6];
|
|
config.nfaProprietaryCfg.discoveryPollBPrime = (uint8_t)buffer[7];
|
|
config.nfaProprietaryCfg.discoveryListenBPrime = (uint8_t)buffer[8];
|
|
} else {
|
|
memset(&config.nfaProprietaryCfg, 0xFF, sizeof(ProtocolDiscoveryConfig));
|
|
}
|
|
if (GetNumValue(NAME_PRESENCE_CHECK_ALGORITHM, &num, sizeof(num))) {
|
|
config.presenceCheckAlgorithm = (PresenceCheckAlgorithm)num;
|
|
}
|
|
}
|