binding: nfc: new initial binding

Slight rewrite to use libnfc initially for getting tag uid's for
user settings.

Bug-AGL: SPEC-1554
Change-Id: I7b8c30102b82e86a92c89909bcbfba9ab7164c1f
Signed-off-by: Matt Ranostay <matt.ranostay@konsulko.com>

20 files changed, 427 insertions, 1421 deletions

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 1511ac0..b485097 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -1,7 +1,7 @@
 ###########################################################################
 # Copyright 2015, 2016, 2017 IoT.bzh
 #
-# author: Loïc Collignon <loic.collignon@iot.bzh>
+# author: Romain Forlot <romain.forlot@iot.bzh>
 #
 # Licensed under the Apache License, Version 2.0 (the "License");
 # you may not use this file except in compliance with the License.
@@ -18,18 +18,4 @@
 
 CMAKE_MINIMUM_REQUIRED(VERSION 3.3)
 
-option(USE_LIBNFC "Enable or disable the 'libnfc' usage." ON)
-option(LIBNFC_POLL_ALL "Enable all modulation when polling." OFF)
-option(LIBNFC_POLL_NMT_ISO14443A "Enable ISO-14443A modulation when polling." ON)
-option(LIBNFC_POLL_NMT_ISOJEWEL "Enable ISO-JEWEL modulation when polling." OFF)
-option(LIBNFC_POLL_NMT_ISO14443B "Enable ISO-14443B modulation when polling." OFF)
-option(LIBNFC_POLL_NMT_ISO14443BI "Enable ISO-14443BI modulation when polling." OFF)
-option(LIBNFC_POLL_NMT_ISO14443B2SR "Enable ISO-14443B2SR modulation when polling." OFF)
-option(LIBNFC_POLL_NMT_ISO14443B2CT "Enable ISO-14443B2CT modulation when polling." OFF)
-option(LIBNFC_POLL_NMT_FELICA "Enable Felica modulation when polling." OFF)
-
 include(${CMAKE_CURRENT_SOURCE_DIR}/conf.d/cmake/config.cmake)
-
-install(DIRECTORY htdocs/nfc DESTINATION htdocs)
-install(DIRECTORY etc DESTINATION ./)
-
diff --git a/README.md b/README.md
index 5b3461f..e545ed5 100644
--- a/README.md
+++ b/README.md
@@ -1,84 +1,18 @@
-# nfc-binding
-Binding to handle NFC devices and tags.
-It currently use the libnfc, but we would like to support neard.
-Unfortunatly, neard seem not mature enough right now.
+# NFC Service
 
-# Devices and Tags compatibilities
+## Overview
 
-Those tags were tested with both SCL3711 (pn533) and ACS122U (pn532).
-ACS122U is currently not working using neard and have also some issues with libnfc.
-Expect random error, but seem to stay stable and working.
+NFC service uses the respective libnfc package to detect the presence of NFC tags and singal via an event
 
-|Tag type                   |Protocol        |libnfc|neard|
-|---------------------------|----------------|------|-----|
-|Alien H3 + FM1108          |ISO/IEC 14443A  |yes   |no²  |
-|FM1108                     |ISO/IEC 14443A  |yes   |no²  |
-|Hitag2                     |ISO/IEC 14443A  |yes   |no   |
-|Mifaire Ultralight         |ISO/IEC 14443A  |yes   |yes  |
-|Mifare 1K S50              |ISO/IEC 14443A  |yes   |no²  |
-|Mifare Plus S2K            |ISO/IEC 14443A  |yes   |no²  |
-|Mifare Desfire D41         |ISO/IEC 14443A  |yes   |yes  |
-|NTag 213                   |ISO/IEC 14443A  |yes   |yes  |
-|Hellfest Cashless          |ISO/IEC 14443A  |yes   |no²  |
-|French biometric passeport¹|ISO/IEC 14443A  |yes   |no²  |
-|French Credit Card         |ISO/IEC 14443-4B|yes   |no²  |
-|Alien H3                   |N/A             |no    |no   |
-|Alien H3 9654              |N/A             |no    |no   |
-|Alien H3 9662              |N/A             |no    |no   |
-|Alien H3 + TK4100          |N/A             |no    |no   |
-|EM4450                     |N/A             |no    |no   |
-|ICODE SLI                  |N/A             |no    |no   |
-|Picopass 2KS               |N/A             |no    |no   |
-|SRI512                     |N/A             |no    |no   |
-|Tag-it HF-I (TI2048)       |N/A             |no    |no   |
-|TK4100                     |N/A             |no    |no   |
+## Verbs
 
-¹ UID is randomly generated so the tag is detected as a new one on each poll. 
+| Name               | Description                          | JSON Parameters                                                        |
+|--------------------|:-------------------------------------|:-----------------------------------------------------------------------|
+| subscribe          | subscribe to NFC events              | *Request:* {"value": "presence"}                                       |
+| unsubscribe        | unsubscribe to NFC events            | *Request:* {"value": "presence"}                                       |
 
-² Polling is stopped at detection but no tag is exposed.
+## Events
 
-# UDev rules
-
-You may want to add some UDev's rule for nfc device to make things easier.
-You can put those lines into /etc/udev/rules.d/99-nfc.rules
-```Shell
-ACTION!="add", GOTO="nfc_pn53x_end"
-
-# Advanced Card Systems, Ltd ACR122U
-ATTRS{idVendor}=="072f", ATTRS{idProduct}=="2200", MODE="0666", SYMLINK+="nfc%n"
-
-# SCM Microsystems, Inc. SCL3711-NFC&RW
-ATTRS{idVendor}=="04e6", ATTRS{idProduct}=="5591", MODE="0666", SYMLINK+="nfc%n"
-
-LABEL="nfc_pn53x_end"
-```
-
-# Kernel module
-The SCL3711 is supported by the kernel and neard, so it takes the device and prevent the libnfc to use it.
-If you have an error saying that the device is busy, it's probably the reason why.
-
-You have to unload nfc kernel modules to get it work using libnfc.
-```ShellSession
-root@localhost# rmmod pn533_usb
-root@localhost# rmmod pn533
-root@localhost# rmmod nfc
-```
-
-To make it permanent you can add this file: /etc/modprobe.d/blacklist-nfc.conf
-```
-blacklist nfc
-blacklist pn533
-blacklist pn533_usb
-```
-
-# Compilation option
-
-* USE_LIBNFC - Enable or disable the 'libnfc' usage. Default is ON.
-    * LIBNFC_POLL_ALL Enable all modulation when polling. Default is OFF.
-    * LIBNFC_POLL_NMT_ISO14443A - Enable ISO-14443A modulation when polling. Default is ON.
-    * LIBNFC_POLL_NMT_ISOJEWEL - Enable ISO-JEWEL modulation when polling. Default is OFF.
-    * LIBNFC_POLL_NMT_ISO14443B - Enable ISO-14443B modulation when polling. Default is OFF.
-    * LIBNFC_POLL_NMT_ISO14443BI - Enable ISO-14443BI modulation when polling. Default is OFF.
-    * LIBNFC_POLL_NMT_ISO14443B2SR - Enable ISO-14443B2SR modulation when polling. Default is OFF.
-    * LIBNFC_POLL_NMT_ISO14443B2CT - Enable ISO-14443B2CT modulation when polling. Default is OFF.
-    * LIBNFC_POLL_NMT_FELICA - Enable Felica modulation when polling. Default is OFF.
\ No newline at end of file
+| Name               | Description                          | JSON Response                                                          |
+|--------------------|:-------------------------------------|:------------------------------------------ ----------------------------|
+| presence           | event that reports NFC tag presence  |  *Response:* {"status": "detected", "uid": "042eb3628e4981"}           |
diff --git a/binding/CMakeLists.txt b/binding/CMakeLists.txt
new file mode 100644
index 0000000..512cede
--- /dev/null
+++ b/binding/CMakeLists.txt
@@ -0,0 +1,35 @@
+###########################################################################
+# Copyright 2015, 2016, 2017 IoT.bzh
+#
+# author: Fulup Ar Foll <fulup@iot.bzh>
+# contrib: Romain Forlot <romain.forlot@iot.bzh>
+#
+# 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.
+###########################################################################
+
+# Add target to project dependency list
+PROJECT_TARGET_ADD(afm-nfc-binding)
+
+	# Define project Targets
+	add_library(afm-nfc-binding MODULE afm-nfc-binding.c)
+
+	# Binder exposes a unique public entry point
+	SET_TARGET_PROPERTIES(${TARGET_NAME} PROPERTIES
+		PREFIX "lib"
+		LABELS "BINDING"
+		LINK_FLAGS ${BINDINGS_LINK_FLAG}
+		OUTPUT_NAME ${TARGET_NAME}
+	)
+
+	# Library dependencies (include updates automatically)
+	TARGET_LINK_LIBRARIES(${TARGET_NAME} ${link_libraries})
diff --git a/binding/afm-nfc-binding.c b/binding/afm-nfc-binding.c
new file mode 100644
index 0000000..c92c36c
--- /dev/null
+++ b/binding/afm-nfc-binding.c
@@ -0,0 +1,200 @@
+/*
+ * Copyright (C) 2018 Konsulko Group
+ * Author: Matt Ranostay <matt.ranostay@konsulko.com>
+ *
+ * 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.
+ *
+ * TODO: add support for NFC p2p transactions
+ */
+
+#define _GNU_SOURCE
+#include <errno.h>
+#include <stdio.h>
+#include <string.h>
+#include <stdlib.h>
+#include <stdbool.h>
+#include <unistd.h>
+#include <pthread.h>
+#include <glib.h>
+#include <glib-object.h>
+#include <json-c/json.h>
+#include <nfc/nfc.h>
+#include <nfc/nfc-types.h>
+
+#define AFB_BINDING_VERSION 2
+#include <afb/afb-binding.h>
+
+#define ARRAY_SIZE(x) (sizeof(x) / sizeof(x[0]))
+#define WAIT_FOR_REMOVE(dev) { while (0 == nfc_initiator_target_is_present(dev, NULL)) {} }
+
+static struct afb_event presence_event;
+static char *current_uid = NULL;
+static pthread_mutex_t mutex = PTHREAD_MUTEX_INITIALIZER;
+
+static const nfc_modulation modulations[] = {
+	{ .nmt = NMT_ISO14443A, .nbr = NBR_106 },
+};
+
+static char *to_hex_string(unsigned char *data, size_t size)
+{
+	char *buffer = malloc((2 * size) + 1);
+	char *tmp = buffer;
+	int i;
+
+	if (buffer == NULL)
+		return buffer;
+
+	for (i = 0; i < size; i++) {
+		tmp += sprintf(tmp, "%.2x", data[i]);
+	}
+
+	return buffer;
+}
+
+static char *get_tag_uid(nfc_target *nt)
+{
+	if (nt->nm.nmt == NMT_ISO14443A)
+		return to_hex_string((unsigned char *) &nt->nti.nai.abtUid, nt->nti.nai.szUidLen);
+
+	return NULL;
+}
+
+static void send_detect_event(char *current_id)
+{
+	json_object *jresp;
+
+	if (current_id == NULL)
+		return;
+
+	jresp = json_object_new_object();
+
+	json_object_object_add(jresp, "status", json_object_new_string("detected"));
+	json_object_object_add(jresp, "uid", json_object_new_string(current_uid));
+
+	afb_event_push(presence_event, jresp);
+}
+
+static void *nfc_loop_thread(void *ptr)
+{
+	nfc_context *ctx = NULL;
+	nfc_device *dev = NULL;
+
+	nfc_init(&ctx);
+
+	dev = nfc_open(ctx, NULL);
+
+	if (dev == NULL) {
+		AFB_ERROR("Cannot get context for libnfc");
+		nfc_exit(ctx);
+		exit(EXIT_FAILURE);
+	}
+
+	if (nfc_initiator_init(dev) < 0) {
+		AFB_ERROR("Cannot get initiator mode from libnfc");
+		nfc_close(dev);
+		nfc_exit(ctx);
+		exit(EXIT_FAILURE);
+	}
+
+	while (1) {
+		nfc_target nt;
+		json_object *jresp;
+		int res = nfc_initiator_poll_target(dev, modulations, ARRAY_SIZE(modulations), 0xff, 2, &nt);
+
+		if (res < 0)
+			break;
+
+		pthread_mutex_lock(&mutex);
+
+		current_uid = get_tag_uid(&nt);
+		send_detect_event(current_uid);
+
+		pthread_mutex_unlock(&mutex);
+
+		WAIT_FOR_REMOVE(dev);
+
+		pthread_mutex_lock(&mutex);
+
+		jresp = json_object_new_object();
+		json_object_object_add(jresp, "status", json_object_new_string("removed"));
+		json_object_object_add(jresp, "uid", json_object_new_string(current_uid));
+		afb_event_push(presence_event, jresp);
+
+		free(current_uid);
+		current_uid = NULL;
+
+		pthread_mutex_unlock(&mutex);
+	}
+
+	nfc_close(dev);
+	nfc_exit(ctx);
+
+	return NULL;
+}
+
+static int init()
+{
+	pthread_t thread_id;
+
+	presence_event = afb_daemon_make_event("presence");
+
+	return pthread_create(&thread_id, NULL, nfc_loop_thread, NULL);
+}
+
+static void subscribe(struct afb_req request)
+{
+	const char *value = afb_req_value(request, "value");
+
+	if (value && !strcasecmp(value, "presence")) {
+		afb_req_subscribe(request, presence_event);
+		afb_req_success(request, NULL, NULL);
+
+		// send initial tag if exists
+		pthread_mutex_lock(&mutex);
+		send_detect_event(current_uid);
+		pthread_mutex_unlock(&mutex);
+
+		return;
+	}
+
+	afb_req_fail(request, "failed", "Invalid event");
+}
+
+static void unsubscribe(struct afb_req request)
+{
+	const char *value = afb_req_value(request, "value");
+
+	if (value && !strcasecmp(value, "presence")) {
+		afb_req_unsubscribe(request, presence_event);
+		afb_req_success(request, NULL, NULL);
+		return;
+	}
+
+	afb_req_fail(request, "failed", "Invalid event");
+}
+
+static const struct afb_verb_v2 binding_verbs[] = {
+	{ .verb = "subscribe",   .callback = subscribe,    .info = "Subscribe to NFC events" },
+	{ .verb = "unsubscribe", .callback = unsubscribe,  .info = "Unsubscribe to NFC events" },
+	{ }
+};
+
+/*
+ * binder API description
+ */
+const struct afb_binding_v2 afbBindingV2 = {
+	.api		= "nfc",
+	.specification	= "NFC service API",
+	.verbs		= binding_verbs,
+	.init		= init,
+};
diff --git a/conf.d/app-templates b/conf.d/app-templates
-Subproject 8c2b05967a3237e624a2cc78e13fcd1c5e72991
+Subproject e400fb3543217ccd4e2b2a67b018bc947f09bd2
diff --git a/conf.d/autobuild/agl/autobuild b/conf.d/autobuild/agl/autobuild
new file mode 100755
index 0000000..83097ab
--- /dev/null
+++ b/conf.d/autobuild/agl/autobuild
@@ -0,0 +1,67 @@
+#!/usr/bin/make -f
+# Copyright (C) 2015, 2016 "IoT.bzh"
+# Author "Romain Forlot" <romain.forlot@iot.bzh>
+#
+# 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.
+
+THISFILE  := $(lastword $(MAKEFILE_LIST))
+BUILD_DIR := $(abspath $(dir $(THISFILE)/../../../../..)/build)
+DEST      := ${BUILD_DIR}/target
+
+.PHONY: all clean distclean configure build package help update
+
+all: help
+
+help:
+	@echo "List of targets available:"
+	@echo ""
+	@echo "- all"
+	@echo "- clean"
+	@echo "- distclean"
+	@echo "- configure"
+	@echo "- build: compilation, link and prepare files for package into a widget"
+	@echo "- package: output a widget file '*.wgt'"
+	@echo "- install: install in your ${CMAKE_INSTALL_DIR} directory"
+	@echo ""
+	@echo "Usage: ./conf.d/autobuild/agl/autobuild package DEST=${HOME}/opt"
+	@echo "Don't use your build dir as DEST as wgt file is generated at this location"
+
+update: configure
+	@cmake --build ${BUILD_DIR} --target autobuild
+
+clean:
+	@([ -d ${BUILD_DIR} ] && make -C ${BUILD_DIR} clean) || echo Nothing to clean
+
+distclean:
+	@rm -rf ${BUILD_DIR}
+
+configure: ${BUILD_DIR}/Makefile
+
+build: configure
+	@cmake --build ${BUILD_DIR} ${BUILD_ARGS} --target all
+
+package: build
+	@mkdir -p ${BUILD_DIR}/$@/bin
+	@mkdir -p ${BUILD_DIR}/$@/etc
+	@mkdir -p ${BUILD_DIR}/$@/lib
+	@mkdir -p ${BUILD_DIR}/$@/htdocs
+	@mkdir -p ${BUILD_DIR}/$@/var
+	@cmake --build ${BUILD_DIR} --target widget
+	@mkdir -p ${DEST} && cp ${BUILD_DIR}/*wgt ${DEST}
+
+install: build
+	@cmake --build ${BUILD_DIR} --target install
+
+${BUILD_DIR}/Makefile:
+	@[ -d ${BUILD_DIR} ] || mkdir -p ${BUILD_DIR}
+	@[ -f ${BUILD_DIR}/Makefile ] || (cd ${BUILD_DIR} && cmake ${CONFIGURE_ARGS} ..)
diff --git a/conf.d/autobuild/linux/autobuild b/conf.d/autobuild/linux/autobuild
new file mode 100755
index 0000000..83097ab
--- /dev/null
+++ b/conf.d/autobuild/linux/autobuild
@@ -0,0 +1,67 @@
+#!/usr/bin/make -f
+# Copyright (C) 2015, 2016 "IoT.bzh"
+# Author "Romain Forlot" <romain.forlot@iot.bzh>
+#
+# 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.
+
+THISFILE  := $(lastword $(MAKEFILE_LIST))
+BUILD_DIR := $(abspath $(dir $(THISFILE)/../../../../..)/build)
+DEST      := ${BUILD_DIR}/target
+
+.PHONY: all clean distclean configure build package help update
+
+all: help
+
+help:
+	@echo "List of targets available:"
+	@echo ""
+	@echo "- all"
+	@echo "- clean"
+	@echo "- distclean"
+	@echo "- configure"
+	@echo "- build: compilation, link and prepare files for package into a widget"
+	@echo "- package: output a widget file '*.wgt'"
+	@echo "- install: install in your ${CMAKE_INSTALL_DIR} directory"
+	@echo ""
+	@echo "Usage: ./conf.d/autobuild/agl/autobuild package DEST=${HOME}/opt"
+	@echo "Don't use your build dir as DEST as wgt file is generated at this location"
+
+update: configure
+	@cmake --build ${BUILD_DIR} --target autobuild
+
+clean:
+	@([ -d ${BUILD_DIR} ] && make -C ${BUILD_DIR} clean) || echo Nothing to clean
+
+distclean:
+	@rm -rf ${BUILD_DIR}
+
+configure: ${BUILD_DIR}/Makefile
+
+build: configure
+	@cmake --build ${BUILD_DIR} ${BUILD_ARGS} --target all
+
+package: build
+	@mkdir -p ${BUILD_DIR}/$@/bin
+	@mkdir -p ${BUILD_DIR}/$@/etc
+	@mkdir -p ${BUILD_DIR}/$@/lib
+	@mkdir -p ${BUILD_DIR}/$@/htdocs
+	@mkdir -p ${BUILD_DIR}/$@/var
+	@cmake --build ${BUILD_DIR} --target widget
+	@mkdir -p ${DEST} && cp ${BUILD_DIR}/*wgt ${DEST}
+
+install: build
+	@cmake --build ${BUILD_DIR} --target install
+
+${BUILD_DIR}/Makefile:
+	@[ -d ${BUILD_DIR} ] || mkdir -p ${BUILD_DIR}
+	@[ -f ${BUILD_DIR}/Makefile ] || (cd ${BUILD_DIR} && cmake ${CONFIGURE_ARGS} ..)
diff --git a/conf.d/cmake/config.cmake b/conf.d/cmake/config.cmake
index f625321..35da628 100644
--- a/conf.d/cmake/config.cmake
+++ b/conf.d/cmake/config.cmake
@@ -18,14 +18,11 @@
 
 # Project Info
 # ------------------
-set(PROJECT_NAME nfc-binding)
-set(PROJECT_VERSION "0.1")
-set(PROJECT_PRETTY_NAME "NFC Binding")
-set(PROJECT_DESCRIPTION "Abstract NFC readers.")
-set(PROJECT_URL "https://gerrit.automotivelinux.org/gerrit/apps/app-templates")
+set(PROJECT_NAME agl-service-nfc)
+set(PROJECT_PRETTY_NAME "AFM binding for NFC")
+set(PROJECT_DESCRIPTION "Binding for handling NFC access controls")
+set(PROJECT_VERSION "1.0")
 set(PROJECT_ICON "icon.png")
-set(PROJECT_AUTHOR "Collignon, Loïc")
-set(PROJECT_AUTHOR_MAIL "loic.collignon@iot.bzh")
 set(PROJECT_LICENSE "APL2.0")
 set(PROJECT_LANGUAGES,"C")
 
@@ -45,6 +42,7 @@ set(PROJECT_APP_TEMPLATES_DIR "conf.d/app-templates")
 
 # Compilation Mode (DEBUG, RELEASE)
 # ----------------------------------
+set(CMAKE_BUILD_TYPE "DEBUG")
 
 # Kernel selection if needed. You can choose between a
 # mandatory version to impose a minimal version.
@@ -57,8 +55,8 @@ set(PROJECT_APP_TEMPLATES_DIR "conf.d/app-templates")
 # NOTE*** FOR NOW IT CHECKS KERNEL Yocto environment and
 # Yocto SDK Kernel version.
 # -----------------------------------------------
-#set (kernel_mandatory_version 4.8)
-#set (kernel_minimal_version 4.8)
+#set(kernel_mandatory_version 4.8)
+set(kernel_minimal_version 4.8)
 
 # Compiler selection if needed. Impose a minimal version.
 # -----------------------------------------------
@@ -68,71 +66,26 @@ set (gcc_minimal_version 4.9)
 # -----------------------------
 set (PKG_REQUIRED_LIST
 	json-c
+	glib-2.0
+	libnfc
 	libsystemd>=222
 	afb-daemon
-	libnfc
 )
 
-# Prefix path where will be installed the files
-# Default: /usr/local (need root permission to write in)
-# ------------------------------------------------------
-#set(CMAKE_INSTALL_PREFIX $ENV{HOME}/opt)
-
 # Customize link option
 # -----------------------------
-list(APPEND link_libraries -lnfc)
-
-# Compilation options definition
-# Use CMake generator expressions to specify only for a specific language
-# Values are prefilled with default options that is currently used.
-# Either separate options with ";", or each options must be quoted separately
-# DO NOT PUT ALL OPTION QUOTED AT ONCE , COMPILATION COULD FAILED !
-# ----------------------------------------------------------------------------
-#set(COMPILE_OPTIONS
-# -Wall
-# -Wextra
-# -Wconversion
-# -Wno-unused-parameter
-# -Wno-sign-compare
-# -Wno-sign-conversion
-# -Werror=maybe-uninitialized
-# -Werror=implicit-function-declaration
-# -ffunction-sections
-# -fdata-sections
-# -fPIC
-# CACHE STRING "Compilation flags")
-#set(C_COMPILE_OPTIONS "" CACHE STRING "Compilation flags for C language.")
-#set(CXX_COMPILE_OPTIONS "" CACHE STRING "Compilation flags for C++ language.")
-#set(PROFILING_COMPILE_OPTIONS
-# -g
-# -O0
-# -pg
-# -Wp,-U_FORTIFY_SOURCE
-# CACHE STRING "Compilation flags for PROFILING build type.")
-#set(DEBUG_COMPILE_OPTIONS
-# -g
-# -ggdb
-# -Wp,-U_FORTIFY_SOURCE
-# CACHE STRING "Compilation flags for DEBUG build type.")
-#set(CCOV_COMPILE_OPTIONS
-# -g
-# -O2
-# --coverage
-# CACHE STRING "Compilation flags for CCOV build type.")
-#set(RELEASE_COMPILE_OPTIONS
-# -g
-# -O2
-# CACHE STRING "Compilation flags for RELEASE build type.")
+list (APPEND link_libraries -pthread)
 
 # (BUG!!!) as PKG_CONFIG_PATH does not work [should be an env variable]
 # ---------------------------------------------------------------------
+set(CMAKE_INSTALL_PREFIX $ENV{HOME}/opt)
 set(CMAKE_PREFIX_PATH ${CMAKE_INSTALL_PREFIX}/lib64/pkgconfig ${CMAKE_INSTALL_PREFIX}/lib/pkgconfig)
 set(LD_LIBRARY_PATH ${CMAKE_INSTALL_PREFIX}/lib64 ${CMAKE_INSTALL_PREFIX}/lib)
 
 # Optional location for config.xml.in
 # -----------------------------------
-#set(WIDGET_ICON conf.d/wgt/${PROJECT_ICON} CACHE PATH "Path to the widget icon")
-set(WIDGET_CONFIG_TEMPLATE ${CMAKE_CURRENT_SOURCE_DIR}/conf.d/wgt/config.xml.in CACHE PATH "Path to widget config file template (config.xml.in)")
+set(WIDGET_CONFIG_TEMPLATE ${CMAKE_CURRENT_SOURCE_DIR}/conf.d/wgt/config.xml.in)
+
 
 # Mandatory widget Mimetype specification of the main unit
 # --------------------------------------------------------------------------
@@ -156,7 +109,12 @@ set(WIDGET_TYPE application/vnd.agl.service)
 # This is the file that will be executed, loaded,
 # at launch time by the application framework.
 #
-set(WIDGET_ENTRY_POINT config.xml)
+set(WIDGET_ENTRY_POINT lib/libafm-nfc-binding.so)
+
+# Print a helper message when every thing is finished
+# ----------------------------------------------------
+set(CLOSING_MESSAGE "Test with: afb-daemon --rootdir=\$\$(pwd)/package --binding=\$\$(pwd)/package/${WIDGET_ENTRY_POINT} --port=1234 --tracereq=common --token=\"1\" --verbose")
+set(PACKAGE_MESSAGE "Install widget file using in the target : afm-util install ${PROJECT_NAME}.wgt")
 
 # Optional dependencies order
 # ---------------------------
@@ -170,6 +128,10 @@ set(WIDGET_ENTRY_POINT config.xml)
 # -------------------------
 #set(EXTRA_LINK_LIBRARIES)
 
+# Optional force binding installation
+# ------------------------------------
+# set(BINDINGS_INSTALL_PREFIX PrefixPath )
+
 # Optional force binding Linking flag
 # ------------------------------------
 # set(BINDINGS_LINK_FLAG LinkOptions )
@@ -181,20 +143,8 @@ set(WIDGET_ENTRY_POINT config.xml)
 # Optional Application Framework security token
 # and port use for remote debugging.
 #------------------------------------------------------------
-set(AFB_TOKEN   ""     CACHE PATH "Default binder security token")
-set(AFB_REMPORT "1234" CACHE PATH "Default binder listening port")
-
-# Print a helper message when every thing is finished
-# ----------------------------------------------------
-set(CLOSING_MESSAGE "Typical binding launch: afb-daemon --port=${AFB_REMPORT} --workdir=${CMAKE_BINARY_DIR}/package --ldpaths=lib --roothttp=htdocs  --token=\"${AFB_TOKEN}\" --tracereq=common --verbose")
-set(PACKAGE_MESSAGE "Install widget file using in the target : afm-util install ${PROJECT_NAME}.wgt")
-
-# Optional schema validator about now only XML, LUA and JSON
-# are supported
-#------------------------------------------------------------
-#set(LUA_CHECKER "luac" "-p" CACHE STRING "LUA compiler")
-#set(XML_CHECKER "xmllint" CACHE STRING "XML linter")
-#set(JSON_CHECKER "json_verify" CACHE STRING "JSON linter")
+#set(AFB_TOKEN   ""      CACHE PATH "Default AFB_TOKEN")
+#set(AFB_REMPORT "1234" CACHE PATH "Default AFB_TOKEN")
 
 # This include is mandatory and MUST happens at the end
 # of this file, else you expose you to unexpected behavior
diff --git a/conf.d/wgt/config.xml.in b/conf.d/wgt/config.xml.in
index e518d20..d19e60f 100644
--- a/conf.d/wgt/config.xml.in
+++ b/conf.d/wgt/config.xml.in
@@ -1,18 +1,23 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <widget xmlns="http://www.w3.org/ns/widgets" id="@PROJECT_NAME@" version="@PROJECT_VERSION@">
-  <name>@PROJECT_NAME@</name>
-  <icon src="@PROJECT_ICON@"/>
-  <content src="@WIDGET_ENTRY_POINT@" type="@WIDGET_TYPE@"/>
-  <description>@PROJECT_DESCRIPTION@</description>
-  <author>@PROJECT_AUTHOR@ &lt;@PROJECT_AUTHOR_MAIL@&gt;</author>
-  <license>@PROJECT_LICENSE@</license>
-  <feature name="urn:AGL:widget:required-permission">
-    <param name="urn:AGL:permission::public:hidden" value="required" />
-  </feature>
-  <feature name="urn:AGL:widget:required-api">
-    <param name="lib/afb-nfc-binding.so" value="local" />
-  </feature>
-  <feature name="urn:AGL:widget:provided-api">
-    <param name="nfc" value="ws" />
-  </feature>
+	<name>@PROJECT_NAME@</name>
+	<icon src="@PROJECT_ICON@"/>
+	<content src="@WIDGET_ENTRY_POINT@" type="@WIDGET_TYPE@"/>
+	<description>@PROJECT_DESCRIPTION@</description>
+	<author>@PROJECT_AUTHOR@ &lt;@PROJECT_AUTHOR_MAIL@&gt;</author>
+	<license>@PROJECT_LICENSE@</license>
+
+	<feature name="urn:AGL:widget:required-permission">
+		<param name="urn:AGL:permission::public:hidden" value="required" />
+		<param name="urn:AGL:permission::public:no-htdocs" value="required" />
+		<param name="urn:AGL:permission::system:run-by-default" value="required" />
+	</feature>
+
+	<feature name="urn:AGL:widget:provided-api">
+		<param name="nfc" value="ws" />
+	</feature>
+
+	<feature name="urn:AGL:widget:required-api">
+		<param name="@WIDGET_ENTRY_POINT@" value="local" />
+	</feature>
 </widget>
diff --git a/htdocs/nfc/AFB-websock.js b/htdocs/nfc/AFB-websock.js
deleted file mode 100644
index 08a7ffe..0000000
--- a/htdocs/nfc/AFB-websock.js
+++ /dev/null
@@ -1,174 +0,0 @@
-AFB = function(base, initialtoken){
-
-var urlws = "ws://"+window.location.host+"/"+base;
-var urlhttp = "http://"+window.location.host+"/"+base;
-
-/*********************************************/
-/****                                     ****/
-/****             AFB_context             ****/
-/****                                     ****/
-/*********************************************/
-var AFB_context;
-{
-	var UUID = undefined;
-	var TOKEN = initialtoken;
-
-	var context = function(token, uuid) {
-		this.token = token;
-		this.uuid = uuid;
-	}
-
-	context.prototype = {
-		get token() {return TOKEN;},
-		set token(tok) {if(tok) TOKEN=tok;},
-		get uuid() {return UUID;},
-		set uuid(id) {if(id) UUID=id;}
-	};
-
-	AFB_context = new context();
-}
-/*********************************************/
-/****                                     ****/
-/****             AFB_websocket           ****/
-/****                                     ****/
-/*********************************************/
-var AFB_websocket;
-{
-	var CALL = 2;
-	var RETOK = 3;
-	var RETERR = 4;
-	var EVENT = 5;
-
-	var PROTO1 = "x-afb-ws-json1";
-
-	AFB_websocket = function(onopen, onabort) {
-		var u = urlws;
-		if (AFB_context.token) {
-			u = u + '?x-afb-token=' + AFB_context.token;
-			if (AFB_context.uuid)
-				u = u + '&x-afb-uuid=' + AFB_context.uuid;
-		}
-		this.ws = new WebSocket(u, [ PROTO1 ]);
-		this.pendings = {};
-		this.awaitens = {};
-		this.counter = 0;
-		this.ws.onopen = onopen.bind(this);
-		this.ws.onerror = onerror.bind(this);
-		this.ws.onclose = onclose.bind(this);
-		this.ws.onmessage = onmessage.bind(this);
-		this.onopen = onopen;
-		this.onabort = onabort;
-		this.onclose = onabort;
-	}
-
-	function onerror(event) {
-		var f = this.onabort;
-		if (f) {
-			delete this.onopen;
-			delete this.onabort;
-			f && f(this);
-		}
-		this.onerror && this.onerror(this);
-	}
-
-	function onopen(event) {
-		var f = this.onopen;
-		delete this.onopen;
-		delete this.onabort;
-		f && f(this);
-	}
-
-	function onclose(event) {
-		for (var id in this.pendings) {
-			var ferr = this.pendings[id].onerror;
-			ferr && ferr(null, this);
-		}
-		this.pendings = {};
-		this.onclose && this.onclose();
-	}
-
-	function fire(awaitens, name, data) {
-		var a = awaitens[name];
-		if (a)
-			a.forEach(function(handler){handler(data);});
-		var i = name.indexOf("/");
-		if (i >= 0) {
-			a = awaitens[name.substring(0,i)];
-			if (a)
-				a.forEach(function(handler){handler(data);});
-		}
-		a = awaitens["*"];
-		if (a)
-			a.forEach(function(handler){handler(data);});
-	}
-
-	function reply(pendings, id, ans, offset) {
-		if (id in pendings) {
-			var p = pendings[id];
-			delete pendings[id];
-			var f = p[offset];
-			f(ans);
-		}
-	}
-
-	function onmessage(event) {
-		var obj = JSON.parse(event.data);
-		var code = obj[0];
-		var id = obj[1];
-		var ans = obj[2];
-		AFB_context.token = obj[3];
-		switch (code) {
-		case RETOK:
-			reply(this.pendings, id, ans, 0);
-			break;
-		case RETERR:
-			reply(this.pendings, id, ans, 1);
-			break;
-		case EVENT:
-		default:
-			fire(this.awaitens, id, ans);
-			break;
-		}
-	}
-
-	function close() {
-		this.ws.close();
-                this.onabort();
-	}
-
-	function call(method, request) {
-		return new Promise((function(resolve, reject){
-			var id, arr;
-			do {
-			   id = String(this.counter = 4095 & (this.counter + 1));
-			} while (id in this.pendings);
-			this.pendings[id] = [ resolve, reject ];
-			arr = [CALL, id, method, request ];
-			if (AFB_context.token) arr.push(AFB_context.token);
-			this.ws.send(JSON.stringify(arr));
-		}).bind(this));
-	}
-
-	function onevent(name, handler) {
-		var id = name;
-		var list = this.awaitens[id] || (this.awaitens[id] = []);
-		list.push(handler);
-	}
-
-	AFB_websocket.prototype = {
-		close: close,
-		call: call,
-		onevent: onevent
-	};
-}
-/*********************************************/
-/****                                     ****/
-/****                                     ****/
-/****                                     ****/
-/*********************************************/
-return {
-	context: AFB_context,
-	ws: AFB_websocket
-};
-};
-
diff --git a/htdocs/nfc/binding-debug.css b/htdocs/nfc/binding-debug.css
deleted file mode 100644
index f41c940..0000000
--- a/htdocs/nfc/binding-debug.css
+++ /dev/null
@@ -1,61 +0,0 @@
-#debug-panel {
-	float: right;
-}
-
-#debug-panel.collapsed {
-	background-color: transparent;
-	overflow-x: hidden;
-}
-
-#debug-panel.expanded {
-	background-color: lightyellow;
-	max-width: 25%;
-	overflow-x: scroll;
-}
-
-#debug-panel.collapsed > #debug-panel-collapse {
-	display: none;
-}
-
-#debug-panel.expanded > #debug-panel-collapse {
-	display: block;
-}
-
-#debug-panel.collapsed > #debug-panel-expand {
-	display: block;
-}
-
-#debug-panel.expanded > #debug-panel-expand {
-	display: none;
-}
-
-#debug-panel.expanded > #debug-panel-content {
-	display: block;
-}
-
-#debug-panel.collapsed > #debug-panel-content {
-	display: none;
-}
-
-.json-key {
-	color: cornflowerblue;
-	font-weight: bold;
-}
-
-.json-string {
-	color: crimson;
-}
-
-.json-number {
-	color: sandybrown;
-}
-
-.json-boolean {
-	color: fuchsia;
-	font-weight: bold;
-}
-
-.json-null {
-	color: black;
-	font-weight: bold;
-}
diff --git a/htdocs/nfc/index.html b/htdocs/nfc/index.html
deleted file mode 100644
index c7c049e..0000000
--- a/htdocs/nfc/index.html
+++ /dev/null
@@ -1,25 +0,0 @@
-<!doctype html>
-<html>
-    <head>
-        <title>agl-service-nfc</title>
-        <meta charset="UTF-8">
-        <script type="text/javascript" src="AFB-websock.js"></script>
-        <script type="text/javascript" src="nfc-binding.js"></script>
-        <link rel="stylesheet" type="text/css" href="binding-debug.css" />
-    </head>
-    
-    <body onload="init();" id="app-body">
-		<div id="debug-panel-container"></div>
-        <h1>agl-service-nfc</h1>
-        <p>
-			<ul>
-				<li><button onclick="subscribe();">Subscribe</button></li>
-				<li><button onclick="unsubscribe();">Unsubscribe</button></li>
-				<li><button onclick="list_devices();">list-devices</button></li>
-				<li><button onclick="list_devices_capabilities();">list-device-capabilities</button></li>
-				<li><button onclick="start_polling();">start-polling</button></li>
-				<li><button onclick="stop_polling();">stop-polling</button></li>
-			</ul>
-        </p>
-    </body>
-</html>
diff --git a/htdocs/nfc/nfc-binding.js b/htdocs/nfc/nfc-binding.js
deleted file mode 100644
index 4241c26..0000000
--- a/htdocs/nfc/nfc-binding.js
+++ /dev/null
@@ -1,156 +0,0 @@
-var afb = new AFB("api", "HELLO");
-var ws;
-
-function add_debbug_panel() {
-	
-	if (document.getElementById("debug-panel"))
-		return;
-
-	var itm = document.getElementById("debug-panel-container");
-	if (itm)
-	{
-		var pnl =
-			"<div id=\"debug-panel\" class=\"expanded\">\n" +
-			"   <button id=\"debug-panel-collapse\" onclick=\"debug_panel_collapse();\">&gt;</button>\n" +
-			"    <button id=\"debug-panel-expand\" onclick=\"debug_panel_expand();\">&lt;</button>\n" +
-			"    <div id=\"debug-panel-content\">\n" +
-			"        <h1>Debug</h1>\n" +
-			"        <h2>Call</h2><div id=\"debug-panel-call\">\n" +
-			"            <ul>\n" +
-			"                <li><strong>api : </strong><span id=\"debug-panel-call-id\"></span></li>\n" +
-			"                <li><strong>verb : </strong><span id=\"debug-panel-call-verb\"></span></li>\n" +
-			"                <li><strong>query : </strong></li>\n" +
-			"            </ul>\n" +
-			"            <pre id=\"debug-panel-call-query\"></pre>\n" +
-			"        </div>\n" +
-			"        <h2>Response</h2><pre id=\"debug-panel-response\"></pre>\n" +
-			"        <h2>Event</h2><pre id=\"debug-panel-event\"></pre>\n" +
-			"    </div>\n" +
-			"</div>\n";
-		itm.insertAdjacentHTML("afterbegin", pnl);
-	}
-}
-
-function createClass(name,rules) {
-	var style = document.createElement('style');
-	style.type = 'text/css';
-	document.getElementsByTagName('head')[0].appendChild(style);
-	if(!(style.sheet||{}).insertRule) 
-		(style.styleSheet || style.sheet).addRule(name, rules);
-	else
-		style.sheet.insertRule(name+"{"+rules+"}",0);
-}
-
-function syntaxHighlight(json) {
-	if (typeof json != 'string')
-		json = JSON.stringify(json, undefined, 2);
-	
-	json = json.replace(/&/g, '&amp;').replace(/</g, '&lt;').replace(/>/g, '&gt;');
-	return json.replace(/("(\\u[a-zA-Z0-9]{4}|\\[^u]|[^\\"])*"(\s*:)?|\b(true|false|null)\b|-?\d+(?:\.\d*)?(?:[eE][+\-]?\d+)?)/g, function (match) {
-		var cls = 'json-number';
-		if (/^"/.test(match)) {
-			if (/:$/.test(match)) {
-				cls = 'json-key';
-			} else {
-				cls = 'json-string';
-			}
-		} else if (/true|false/.test(match)) {
-			cls = 'json-boolean';
-		} else if (/null/.test(match)) {
-			cls = 'json-null';
-		}
-		return '<span class="' + cls + '">' + match + '</span>';
-	});
-}
-
-function set_item_html(id, text)
-{
-	var itm = document.getElementById(id);
-	if (itm) itm.innerHTML = text;
-}
-
-function set_item_text(id, text)
-{
-	var itm = document.getElementById(id);
-	if (itm) itm.innerText = text;
-}
-
-function debug_panel_collapse() {
-	var pnl = document.getElementById('debug-panel');
-	if (pnl)
-	{
-		pnl.classList.remove('expanded');
-		pnl.classList.add('collapsed');
-	}
-}
-
-function debug_panel_expand() {
-	var pnl = document.getElementById('debug-panel');
-	if (pnl)
-	{
-		pnl.classList.remove('collapsed');
-		pnl.classList.add('expanded');
-	}
-}
-
-function init() {
-	add_debbug_panel();
-	ws = new afb.ws(onopen, onabort);
-}
-
-function onopen() {
-	//callbinder("ll-auth", "getuser", "");
-	ws.onevent("*", gotevent);
-}
-
-function onabort() {
-}
-
-function replyok(obj) {
-	console.log("replyok:" + JSON.stringify(obj));
-	set_item_html("debug-panel-response", syntaxHighlight(JSON.stringify(obj, null, 4)));
-}
-
-function replyerr(obj) {
-	console.log("replyerr:" + JSON.stringify(obj));
-	set_item_html("debug-panel-response", syntaxHighlight(JSON.stringify(obj, null, 4)));
-}
-
-function gotevent(obj) {
-	console.log("gotevent:" + JSON.stringify(obj));
-	set_item_html("debug-panel-event", syntaxHighlight(JSON.stringify(obj, null, 4)));
-}
-
-function callbinder(api, verb, query) {
-	console.log ("subscribe api="+api+" verb="+verb+" query=" +query);
-
-	set_item_text("debug-panel-call-api", api);
-	set_item_text("debug-panel-call-verb", verb);
-	set_item_html("debug-panel-call-query", syntaxHighlight(JSON.stringify(query, null, 4)));
-
-	ws.call(api+"/"+verb, query).then(replyok, replyerr);
-}
-
-function subscribe() {
-	callbinder("nfc", "subscribe", {});
-}
-
-function unsubscribe() {
-	callbinder("nfc", "unsubscribe", {});
-}
-
-function list_devices() {
-	callbinder("nfc", "list-devices", {});
-}
-
-function list_devices_capabilities() {
-	callbinder("nfc", "list-devices-capabilities", {});
-}
-
-function start_polling() {
-	callbinder("nfc", "start-polling", {});
-}
-
-function stop_polling() {
-	callbinder("nfc", "stop-polling", {});
-}
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
deleted file mode 100644
index ba35037..0000000
--- a/src/CMakeLists.txt
+++ /dev/null
@@ -1,77 +0,0 @@
-###########################################################################
-# Copyright 2015, 2016, 2017 IoT.bzh
-#
-# author: Loïc Collignon <loic.collignon@iot.bzh>
-#
-# 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.
-###########################################################################
-
-CMAKE_MINIMUM_REQUIRED(VERSION 3.3)
-
-PROJECT_TARGET_ADD(nfc-binding)
-
-set(NFC_BINDING_SOURCES api.c nfc-binding.c)
-
-if (USE_LIBNFC)
-	set(NFC_BINDING_SOURCES ${NFC_BINDING_SOURCES} libnfc_reader.c)
-	add_definitions(-DUSE_LIBNFC=1)
-
-	if(LIBNFC_POLL_ALL)
-		add_definitions(-DLIBNFC_POLL_ALL=1)
-	endif()
-
-	if(LIBNFC_POLL_NMT_ISO14443A)
-		add_definitions(-DLIBNFC_POLL_NMT_ISO14443A=1)
-	endif()
-
-	if(LIBNFC_POLL_NMT_ISOJEWEL)
-		add_definitions(-DLIBNFC_POLL_NMT_ISOJEWEL=1)
-	endif()
-
-	if(LIBNFC_POLL_NMT_ISO14443B)
-		add_definitions(-DLIBNFC_POLL_NMT_ISO14443B=1)
-	endif()
-
-	if(LIBNFC_POLL_NMT_ISO14443BI)
-		add_definitions(-DLIBNFC_POLL_NMT_ISO14443BI=1)
-	endif()
-
-	if(LIBNFC_POLL_NMT_ISO14443B2SR)
-		add_definitions(-DLIBNFC_POLL_NMT_ISO14443B2SR=1)
-	endif()
-
-	if(LIBNFC_POLL_NMT_ISO14443B2CT)
-		add_definitions(-DLIBNFC_POLL_NMT_ISO14443B2CT=1)
-	endif()
-
-	if(LIBNFC_POLL_NMT_FELICA)
-		add_definitions(-DLIBNFC_POLL_NMT_FELICA=1)
-	endif()
-endif()
-
-message(STATUS "libnfc enabled: ${USE_LIBNFC}")
-
-add_library(${TARGET_NAME} MODULE ${NFC_BINDING_SOURCES})
-target_link_libraries(${TARGET_NAME} ${link_libraries})
-
-add_custom_command(TARGET ${TARGET_NAME}
-	PRE_BUILD
-	COMMAND mkdir -p ${CMAKE_CURRENT_BINARY_DIR}/../package/htdocs
-	COMMAND cp -rv ${CMAKE_CURRENT_SOURCE_DIR}/../htdocs ${CMAKE_CURRENT_BINARY_DIR}/../package/)
-
-SET_TARGET_PROPERTIES(${TARGET_NAME} PROPERTIES
-	PREFIX "afb-"
-	LABELS "BINDING"
-	LINK_FLAGS ${BINDINGS_LINK_FLAG}
-	OUTPUT_NAME ${TARGET_NAME})
-	
diff --git a/src/api.c b/src/api.c
deleted file mode 100644
index 8e928fd..0000000
--- a/src/api.c
+++ /dev/null
@@ -1,63 +0,0 @@
-#include "nfc-binding.h"
-
-/*
-static const struct afb_auth nfc_auths[] = {
-};
-*/
-
-static const struct afb_verb_v2 nfc_verbs[] = {
-	{
-		.verb = "subscribe",
-		.callback = verb_subscribe,
-		.auth = NULL,
-		.info = NULL,
-		.session = AFB_SESSION_NONE_V2
-	},
-	{
-		.verb = "unsubscribe",
-		.callback = verb_unsubscribe,
-		.auth = NULL,
-		.info = NULL,
-		.session = AFB_SESSION_NONE_V2
-	},
-	{
-		.verb = "list-devices",
-		.callback = verb_list_devices,
-		.auth = NULL,
-		.info = NULL,
-		.session = AFB_SESSION_NONE_V2
-	},
-	{
-		.verb = "list-devices-capabilities",
-		.callback = verb_list_devices_capabilities,
-		.auth = NULL,
-		.info = NULL,
-		.session = AFB_SESSION_NONE_V2
-	},
-	{
-		.verb = "start",
-		.callback = verb_start,
-		.auth = NULL,
-		.info = NULL,
-		.session = AFB_SESSION_NONE_V2
-	},	
-	{
-		.verb = "stop",
-		.callback = verb_stop,
-		.auth = NULL,
-		.info = NULL,
-		.session = AFB_SESSION_NONE_V2
-	},
-	{ .verb = NULL }
-};
-
-const struct afb_binding afbBindingV2 = {
-	.api = "nfc",
-	.specification = NULL,
-	.info = NULL,
-	.verbs = nfc_verbs,
-	.preinit = NULL,
-	.init = init,
-	.onevent = NULL,
-	.noconcurrency = 0
-};
diff --git a/src/libnfc_reader.c b/src/libnfc_reader.c
deleted file mode 100644
index 78269db..0000000
--- a/src/libnfc_reader.c
+++ /dev/null
@@ -1,478 +0,0 @@
-#include "nfc-binding.h"
-
-#include <signal.h>
-#include <string.h>
-#include <sys/types.h>
-#include <pthread.h>
-
-// FIXME: It compile without these lines, but KDevelop complains about pthread_t being undeclared.
-#ifndef _BITS_PTHREADTYPES
-typedef unsigned long int pthread_t;
-#endif
-
-#include <nfc/nfc.h>
-#include "libnfc_reader.h"
-#include "stringutils.h"
-
-extern struct afb_event on_nfc_target_add_event;
-extern struct afb_event on_nfc_target_remove_event;
-
-#define MAX_NFC_DEVICE_COUNT	8
-#define MAX_NFC_MODULATIONS		8
-#define MAX_NFC_BAUDRATES 		8
-#define POLL_NUMBER				0x1
-#define POLL_PERIOD				0x7
-
-typedef struct libnfc_device_tag
-{
-	pthread_t			poller;
-	nfc_device*			device;
-	nfc_connstring		name;
-	
-	nfc_modulation*		modulations;
-	size_t				modulations_count;
-} libnfc_device;
-
-typedef struct libnfc_context_tag
-{
-	nfc_context*		context;
-	libnfc_device*		devices;
-	size_t				devices_count;
-	struct json_object* last_target;
-} libnfc_context;
-
-static libnfc_context libnfc;
-
-void libnfc_polling_error(int code)
-{
-	switch(code)
-	{
-	case NFC_EIO:
-		AFB_ERROR("libnfc: polling failed with NFC_EIO (%d) code: Input / output error, device may not be usable anymore without re-open it!", code);
-		break;
-	case NFC_EINVARG:
-		AFB_ERROR("libnfc: polling failed with NFC_EINVARG (%d) code: Invalid argument(s)!", code);
-		break;
-	case NFC_EDEVNOTSUPP:
-		AFB_ERROR("libnfc: polling failed with NFC_EDEVNOTSUPP (%d) code: Operation not supported by device!", code);
-		break;
-	case NFC_ENOTSUCHDEV:
-		AFB_ERROR("libnfc: polling failed with NFC_ENOTSUCHDEV (%d) code: No such device!", code);
-		break;
-	case NFC_EOVFLOW:
-		AFB_ERROR("libnfc: polling failed with NFC_EOVFLOW (%d) code: Buffer overflow!", code);
-		break;
-	case NFC_ETIMEOUT:
-		AFB_ERROR("libnfc: polling failed with NFC_ETIMEOUT (%d) code: Operation timed out!", code);
-		break;
-	case NFC_EOPABORTED:
-		AFB_ERROR("libnfc: polling failed with NFC_EOPABORTED (%d) code: Operation aborted (by user)!", code);
-		break;
-	case NFC_ENOTIMPL:
-		AFB_ERROR("libnfc: polling failed with NFC_ENOTIMPL (%d) code: Not (yet) implemented!", code);
-		break;
-	case NFC_ETGRELEASED:
-		AFB_ERROR("libnfc: polling failed with NFC_ETGRELEASED (%d) code: Target released!", code);
-		break;
-	case NFC_ERFTRANS:
-		AFB_ERROR("libnfc: polling failed with NFC_ERFTRANS (%d) code: Error while RF transmission!", code);
-		break;
-	case NFC_EMFCAUTHFAIL:
-		AFB_ERROR("libnfc: polling failed with NFC_EMFCAUTHFAIL (%d) code: MIFARE Classic: authentication failed!", code);
-		break;
-	case NFC_ESOFT:
-		AFB_ERROR("libnfc: polling failed with NFC_ESOFT (%d) code: Software error (allocation, file/pipe creation, etc.)!", code);
-		break;
-	case NFC_ECHIP:
-		//AFB_ERROR("libnfc: polling failed with NFC_ECHIP (%d) code: Device's internal chip error!", code);
-		break;
-	default:
-		AFB_ERROR("libnfc: polling failed with unknown code: %d!", code);
-		break;
-	}
-}
-
-void add_nfc_field(struct json_object* parent, const char* field, const void* src, size_t sz)
-{
-	char* data;
-	
-	if (parent && field && src && sz)
-	{
-		data = to_hex_string(src, sz);
-		if (data)
-		{
-			json_object_object_add(parent, field, json_object_new_string(data));
-			free(data);
-		}
-	}
-}
-
-struct json_object* read_target(const nfc_target* target)
-{
-	struct json_object*	result;
-	const char*			mt;
-	
-	if (!target)
-	{
-		AFB_WARNING("libnfc: No target to read!");
-		return NULL;
-	}
-	
-	result = json_object_new_object();
-	mt = str_nfc_modulation_type(target->nm.nmt);
-	json_object_object_add(result, "Type", json_object_new_string(mt));
-	
-	switch(target->nm.nmt)
-	{
-		case NMT_ISO14443A:
-			add_nfc_field(result, "ATQA", target->nti.nai.abtAtqa, 2);
-			add_nfc_field(result, "SAK", &target->nti.nai.btSak, 1);
-			add_nfc_field(result, "UID", target->nti.nai.abtUid, target->nti.nai.szUidLen);
-			add_nfc_field(result, "ATS", target->nti.nai.abtAts, target->nti.nai.szAtsLen);
-			
-			break;
-		case NMT_ISO14443B:
-			add_nfc_field(result, "PUPI", target->nti.nbi.abtPupi, 4);
-			add_nfc_field(result, "Application Data", target->nti.nbi.abtApplicationData, 4);
-			add_nfc_field(result, "Protocol Info", target->nti.nbi.abtProtocolInfo, 3);
-			add_nfc_field(result, "Card Id", &target->nti.nbi.ui8CardIdentifier, 1);
-			
-			break;
-		default:
-			AFB_WARNING("libnfc: unsupported modulation type: %s.", mt);
-			json_object_object_add(result, "error", json_object_new_string("unsupported tag type"));
-			break;
-	}
-	return result;
-}
-
-void* libnfc_reader_main(void* arg)
-{
-	libnfc_device* device;
-	nfc_target nt;
-	int polled_target_count;
-	nfc_modulation mods[MAX_NFC_MODULATIONS];
-	struct json_object* result;
-	size_t i, j;
-	
-	device = (libnfc_device*)arg;
-	
-	memset(mods, 0, sizeof(nfc_modulation) * MAX_NFC_MODULATIONS);
-	for(i = 0, j = 0; i < device->modulations_count; ++i, ++j)
-	{
-		switch(device->modulations[i].nmt)
-		{
-#if defined(LIBNFC_POLL_ALL) || defined(LIBNFC_POLL_NMT_ISO14443A)
-			case NMT_ISO14443A:
-#endif
-#if defined(LIBNFC_POLL_ALL) || defined(LIBNFC_POLL_NMT_ISOJEWEL)
-			case NMT_JEWEL:
-#endif
-#if defined(LIBNFC_POLL_ALL) || defined(LIBNFC_POLL_NMT_ISO14443B)
-			case NMT_ISO14443B:
-#endif
-#if defined(LIBNFC_POLL_ALL) || defined(LIBNFC_POLL_NMT_ISO14443BI)
-			case NMT_ISO14443BI:
-#endif
-#if defined(LIBNFC_POLL_ALL) || defined(LIBNFC_POLL_NMT_ISO14443B2SR)
-			case NMT_ISO14443B2SR:
-#endif
-#if defined(LIBNFC_POLL_ALL) || defined(LIBNFC_POLL_NMT_ISO14443B2CT)
-			case NMT_ISO14443B2CT:
-#endif
-#if defined(LIBNFC_POLL_ALL) || defined(LIBNFC_POLL_NMT_FELICA)
-			case NMT_FELICA:
-#endif
-				mods[j] = device->modulations[i];
-				AFB_NOTICE("libnfc: polling for %s at %s is ENABLED.", str_nfc_modulation_type(device->modulations[i].nmt), str_nfc_baud_rate(device->modulations[i].nbr));
-				break;
-			default:
-				--j;
-				// NMT_DEP is always disabled because it can't be polled
-				AFB_NOTICE("libnfc: polling for %s at %s is DISABLED.", str_nfc_modulation_type(device->modulations[i].nmt), str_nfc_baud_rate(device->modulations[i].nbr));
-				break;
-		}
-	}
-	
-	while(device->device)
-	{
-		polled_target_count = nfc_initiator_poll_target
-		(
-			device->device,
-			mods,
-			j,
-			POLL_NUMBER,
-			POLL_PERIOD,
-			&nt
-		);
-		
-		switch(polled_target_count)
-		{
-		case 0:
-			// No target detected
-			AFB_INFO("libnfc: polling done with no result.");
-			if (libnfc.last_target)
-			{
-				AFB_NOTICE("libnfc: tag removed = %s", json_object_to_json_string(libnfc.last_target));
-				afb_event_push(on_nfc_target_remove_event, libnfc.last_target);
-				libnfc.last_target = NULL;
-			}
-			break;
-			
-		case 1:
-			AFB_INFO("libnfc: polling done with one result.");
-			// One target detected
-			result = read_target(&nt);
-			
-			if (libnfc.last_target)
-			{
-				if (strcmp(json_object_to_json_string(result), json_object_to_json_string(libnfc.last_target)))
-				{
-					AFB_NOTICE("libnfc: tag removed = %s", json_object_to_json_string(libnfc.last_target));
-					afb_event_push(on_nfc_target_remove_event, libnfc.last_target);
-					libnfc.last_target = NULL;
-				}
-			}
-			
-			if (!libnfc.last_target)
-			{
-				json_object_get(result);
-				libnfc.last_target = result;
-				
-				AFB_NOTICE("libnfc: tag added = %s", json_object_to_json_string(result));
-				afb_event_push(on_nfc_target_add_event, result);
-			}
-			break;
-			
-		default:
-			if (polled_target_count < 0) libnfc_polling_error(polled_target_count);
-			else AFB_WARNING("libnfc: polling done with unsupported result count: %d.", polled_target_count);
-			
-			// Consider target is removed
-			if (libnfc.last_target)
-			{
-				AFB_NOTICE("libnfc: tag removed = %s", json_object_to_json_string(libnfc.last_target));
-				afb_event_push(on_nfc_target_remove_event, libnfc.last_target);
-				libnfc.last_target = NULL;
-			}
-			break;
-		}
-	}
-	return NULL;
-}
-
-void exit_handler()
-{
-	size_t i;
-	nfc_device* dev;
-	for(i = 0; i < libnfc.devices_count; ++i)
-	{
-		if (libnfc.devices[i].device)
-		{
-			dev = libnfc.devices[i].device;
-			libnfc.devices[i].device = NULL;
-			nfc_close(dev);
-		}
-	}
-	nfc_exit(libnfc.context);
-	libnfc.context = NULL;
-}
-
-void sigterm_handler(int sig)
-{
-	if (sig == SIGTERM && libnfc.context && libnfc.devices_count)
-	{
-		exit_handler();
-	}
-}
-
-/// @brief Start the libnfc context.
-/// @return An exit code, @c EXIT_LIBNFC_SUCCESS (zero) on success.
-int libnfc_init()
-{
-	nfc_device* dev;
-	const nfc_modulation_type* modulations;
-	const nfc_baud_rate* baudrates;
-	size_t modulation_idx;
-	nfc_connstring connstrings[MAX_NFC_DEVICE_COUNT];
-	size_t ref_device_count;
-	size_t device_idx;
-	
-	atexit(exit_handler);
-	
-	memset(&libnfc, 0, sizeof(libnfc_context));
-	
-	nfc_init(&libnfc.context);
-	if (libnfc.context == NULL)
-	{
-		AFB_ERROR("[libnfc] Initialization failed (malloc)!");
-		return EXIT_LIBNFC_NOT_INITIALIZED;
-	}
-	
-	AFB_NOTICE("[libnfc] Using libnfc version: %s.", nfc_version());
-	
-	// Find and register devices
-	ref_device_count = nfc_list_devices(libnfc.context, connstrings, MAX_NFC_DEVICE_COUNT);
-	if (!ref_device_count)
-	{
-		AFB_ERROR("libnfc: No NFC device found!");
-		return EXIT_LIBNFC_NO_DEVICE_FOUND;
-	}
-	libnfc.devices_count = ref_device_count;
-	libnfc.devices = malloc(sizeof(libnfc_device) * libnfc.devices_count);
-	memset(libnfc.devices, 0, sizeof(libnfc_device) * libnfc.devices_count);
-	
-	signal(SIGTERM, sigterm_handler);
-	
-	for(device_idx = 0; device_idx < ref_device_count; ++device_idx)
-	{
-		AFB_NOTICE("libnfc: NFC Device found: \"%s\".", connstrings[device_idx]);
-		strcpy(libnfc.devices[device_idx].name, connstrings[device_idx]);
-
-		// Find and register modulations
-		dev = nfc_open(libnfc.context, connstrings[device_idx]);
-		if (dev)
-		{
-			if (nfc_device_get_supported_modulation(dev, N_INITIATOR, &modulations))
-			{
-				AFB_ERROR("libnfc: Failed to get supported modulations from '%s'!", connstrings[device_idx]);
-			}
-			else
-			{
-				// Find and register modulations
-				modulation_idx = 0;
-				while(modulations[modulation_idx]) ++modulation_idx;
-				libnfc.devices[device_idx].modulations_count = modulation_idx;
-				if (modulation_idx)
-				{
-					libnfc.devices[device_idx].modulations = malloc(sizeof(nfc_modulation) * modulation_idx);
-					memset(libnfc.devices[device_idx].modulations, 0, sizeof(nfc_modulation) * modulation_idx);
-					
-					modulation_idx = 0;
-					while(modulations[modulation_idx])
-					{
-						libnfc.devices[device_idx].modulations[modulation_idx].nmt = modulations[modulation_idx];
-						if (!nfc_device_get_supported_baud_rate(dev, modulations[modulation_idx], &baudrates))
-						{
-							 // Keep only the first speed which is supposed to be the fastest
-							libnfc.devices[device_idx].modulations[modulation_idx].nbr = baudrates[0];
-						}
-						
-						AFB_NOTICE("libnfc:    - Modulation '%s' supported at '%s'."
-							, str_nfc_modulation_type(libnfc.devices[device_idx].modulations[modulation_idx].nmt)
-							, str_nfc_baud_rate(libnfc.devices[device_idx].modulations[modulation_idx].nbr));
-						++modulation_idx;
-					}
-				}
-			}
-			nfc_close(dev);
-		}
-	}
-	
-	return EXIT_LIBNFC_SUCCESS;
-}
-
-/// @brief List devices founds by libnfc.
-/// @param[in] result A json object array into which found devices are added.
-/// @return An exit code, @c EXIT_LIBNFC_SUCCESS (zero) on success.
-int libnfc_list_devices(struct json_object* result)
-{
-	struct json_object* device;
-	size_t i;
-	
-	for(i = 0; i < libnfc.devices_count; ++i)
-	{
-		device = json_object_new_object();
-		json_object_object_add(device, "source", json_object_new_string("libnfc"));
-		json_object_object_add(device, "name", json_object_new_string(libnfc.devices[i].name));
-		json_object_array_add(result, device);
-	}
-	
-	return EXIT_LIBNFC_SUCCESS;
-}
-
-int libnfc_list_devices_capabilities(struct json_object* result, struct json_object* devices)
-{
-	struct json_object* device;
-	struct json_object* mods;
-	struct json_object* mod;
-	size_t i, j;
-	
-	for(i = 0; i < libnfc.devices_count; ++i)
-	{
-		device = json_object_new_object();
-		json_object_object_add(device, "source", json_object_new_string("libnfc"));
-		json_object_object_add(device, "name", json_object_new_string(libnfc.devices[i].name));
-		mods = json_object_new_array();
-		
-		for(j = 0; j < libnfc.devices[i].modulations_count; ++j)
-		{
-			mod = json_object_new_object();
-			json_object_object_add(mod, "modulation", json_object_new_string(str_nfc_modulation_type(libnfc.devices[i].modulations[j].nmt)));
-			json_object_object_add(mod, "baudrate", json_object_new_string(str_nfc_baud_rate(libnfc.devices[i].modulations[j].nbr)));
-			json_object_array_add(mods, mod);
-		}
-		
-		json_object_object_add(device, "modulations", mods);
-		json_object_array_add(result, device);
-	}
-	
-	return EXIT_LIBNFC_SUCCESS;
-}
-
-int libnfc_start_polling(struct json_object* result, struct json_object* devices)
-{
-	struct json_object* device;
-	size_t i;
-	int r;
-	
-	for(i = 0; i < libnfc.devices_count; ++i)
-	{
-		device = json_object_new_object();
-		json_object_object_add(device, "source", json_object_new_string("libnfc"));
-		json_object_object_add(device, "name", json_object_new_string(libnfc.devices[i].name));
-		if (libnfc.devices[i].device)
-		{
-			json_object_object_add(device, "status", json_object_new_string("already polling"));
-			AFB_NOTICE("libnfc: Device '%s' is already polling.", libnfc.devices[i].name);
-		}
-		else
-		{
-			libnfc.devices[i].device = nfc_open(libnfc.context, libnfc.devices[i].name);
-			if (libnfc.devices[i].device)
-			{
-				if (nfc_initiator_init(libnfc.devices[i].device) < 0)
-				{
-					nfc_close(libnfc.devices[i].device);
-					libnfc.devices[i].device = NULL;
-					json_object_object_add(device, "status", json_object_new_string("failed to set initiator mode"));
-					AFB_ERROR("libnfc: nfc_initiator_init failedfor device '%s'!", libnfc.devices[i].name);
-				}
-				else
-				{
-					r = pthread_create(&libnfc.devices[i].poller, NULL, libnfc_reader_main, (void*)&libnfc.devices[i]);
-					if (r)
-					{
-						nfc_close(libnfc.devices[i].device);
-						libnfc.devices[i].device = NULL;
-						json_object_object_add(device, "status", json_object_new_string("failed to create the polling thread"));
-						AFB_ERROR("libnfc: pthread_create failed!");
-					}
-					else
-					{
-						json_object_object_add(device, "status", json_object_new_string("polling"));
-						AFB_NOTICE("libnfc: Polling the device '%s'.", libnfc.devices[i].name);
-					}
-				}
-			}
-			else
-			{
-				json_object_object_add(device, "status", json_object_new_string("failed to open device"));
-				AFB_ERROR("libnfc: Failed to open device '%s'!", libnfc.devices[i].name);
-			}
-		}
-		json_object_array_add(result, device);
-	}
-	
-	return EXIT_LIBNFC_SUCCESS;
-}
diff --git a/src/libnfc_reader.h b/src/libnfc_reader.h
deleted file mode 100644
index 1209fda..0000000
--- a/src/libnfc_reader.h
+++ /dev/null
@@ -1,12 +0,0 @@
-#pragma once
-
-#include <json-c/json.h>
-
-#define EXIT_LIBNFC_SUCCESS				0
-#define EXIT_LIBNFC_NOT_INITIALIZED		1
-#define EXIT_LIBNFC_NO_DEVICE_FOUND		2
-
-int libnfc_init();
-int libnfc_list_devices(struct json_object* result);
-int libnfc_list_devices_capabilities(struct json_object* result, struct json_object* devices);
-int libnfc_start_polling(struct json_object* result, struct json_object* devices);
diff --git a/src/nfc-binding.c b/src/nfc-binding.c
deleted file mode 100644
index c5f14c6..0000000
--- a/src/nfc-binding.c
+++ /dev/null
@@ -1,134 +0,0 @@
-#include "nfc-binding.h"
-
-#if USE_LIBNFC == 1
-#include "libnfc_reader.h"
-#endif
-
-struct afb_event on_nfc_target_add_event;
-struct afb_event on_nfc_target_remove_event;
-
-/// @brief Binding's initialization.
-/// @return Exit code, zero on success, non-zero otherwise.
-int init()
-{
-	on_nfc_target_add_event = afb_daemon_make_event("on-nfc-target-add");
-	on_nfc_target_remove_event = afb_daemon_make_event("on-nfc-target-remove");
-	if (!afb_event_is_valid(on_nfc_target_add_event) || !afb_event_is_valid(on_nfc_target_remove_event))
-	{
-		AFB_ERROR("Failed to create a valid event!");
-		return 1;
-	}
-	
-#if USE_LIBNFC == 1
-	if (libnfc_init())
-	{
-		AFB_ERROR("Failed start libnfc reader!");
-		return 2;
-	}
-#endif
-	
-	return 0;
-}
-
-/// @brief Get a list of devices.
-/// @param[in] req The query.
-void verb_subscribe(struct afb_req req)
-{	
-	if (!afb_req_subscribe(req, on_nfc_target_remove_event))
-	{
-		if (!afb_req_subscribe(req, on_nfc_target_add_event))
-		{
-			afb_req_success(req, NULL, "Subscription success!");
-			return;
-		}
-		else afb_req_unsubscribe(req, on_nfc_target_remove_event);
-	}
-	
-	afb_req_fail(req, NULL, "Subscription failure!");
-}
-
-/// @brief Get a list of devices.
-/// @param[in] req The query.
-void verb_unsubscribe(struct afb_req req)
-{
-	if (!afb_req_unsubscribe(req, on_nfc_target_add_event))
-	{
-		if (!afb_req_unsubscribe(req, on_nfc_target_remove_event))
-		{
-			afb_req_success(req, NULL, "Unsubscription success!");
-			return;
-		}
-	}
-	
-	afb_req_fail(req, NULL, "Unsubscription failure!");
-}
-
-/// @brief Get a list of devices.
-/// @param[in] req The query.
-void verb_list_devices(struct afb_req req)
-{
-	struct json_object* result;
-	
-	result = json_object_new_array();
-
-#if USE_LIBNFC == 1
-	if (libnfc_list_devices(result))
-	{
-		afb_req_fail(req, "Failed to get devices list from libnfc!", NULL);
-		return;
-	}
-#endif
-	
-	afb_req_success(req, result, NULL);
-}
-
-/// @brief Get a list of devices capabilities.
-/// @param[in] req The query.
-void verb_list_devices_capabilities(struct afb_req req)
-{
-	struct json_object* result;
-	struct json_object* arg;
-	
-	arg = afb_req_json(req);
-	
-	result = json_object_new_array();
-
-#if USE_LIBNFC == 1
-	if (libnfc_list_devices_capabilities(result, arg))
-	{
-		afb_req_fail(req, "Failed to get devices list from libnfc!", NULL);
-		return;
-	}
-#endif
-	
-	afb_req_success(req, result, NULL);
-}
-
-/// @brief Start polling.
-/// @param[in] req The query.
-void verb_start(struct afb_req req)
-{
-	struct json_object* result;
-	struct json_object* arg;
-	
-	arg = afb_req_json(req);
-	
-	result = json_object_new_array();
-
-#if USE_LIBNFC == 1
-	if (libnfc_start_polling(result, arg))
-	{
-		afb_req_fail(req, "Failed to get devices list from libnfc!", NULL);
-		return;
-	}
-#endif
-	
-	afb_req_success(req, result, NULL);
-}
-
-/// @brief Stop polling.
-/// @param[in] req The query.
-void verb_stop(struct afb_req req)
-{
-	afb_req_fail(req, "Not implemented yet!", NULL);
-}
diff --git a/src/nfc-binding.h b/src/nfc-binding.h
deleted file mode 100644
index 767a448..0000000
--- a/src/nfc-binding.h
+++ /dev/null
@@ -1,17 +0,0 @@
-#pragma once
-
-#include <json-c/json.h>
-
-#define AFB_BINDING_VERSION 2
-#include <afb/afb-binding.h>
-
-// Initializations
-int init();
-
-// Verbs
-void verb_subscribe(struct afb_req req);
-void verb_unsubscribe(struct afb_req req);
-void verb_list_devices(struct afb_req req);
-void verb_list_devices_capabilities(struct afb_req req);
-void verb_start(struct afb_req req);
-void verb_stop(struct afb_req req);
diff --git a/src/stringutils.h b/src/stringutils.h
deleted file mode 100644
index 824d09d..0000000
--- a/src/stringutils.h
+++ /dev/null
@@ -1,41 +0,0 @@
-#pragma once
-
-#include <stdlib.h>
-
-/**
- * @brief Get a hexadecimal string representation from memory buffer.
- * @param[in] src Buffer's pointer.
- * @param[in] sz Buffer's size.
- * @return A pointer to the result string. Caller is responsible for the result lifetime.
- */
-static inline char* to_hex_string(const void* src, long unsigned int sz)
-{
-	static const char lookup[] =
-	{
-		'0', '1', '2', '3',
-		'4', '5', '6', '7',
-		'8', '9', 'a', 'b',
-		'c', 'd', 'e', 'f'
-	};
-
-	const char* source;
-	char* result;
-	long unsigned int i;
-
-	result = NULL;
-	if (src && sz)
-	{
-		source = (const char*)src;
-		result = (char*)malloc(sz * 2 + 1);
-		if (result)
-		{
-			result[sz * 2] = 0;
-			for (i = 0; i < sz; ++i)
-			{
-				result[i * 2] = lookup[(source[i] & 0xf0) >> 4];
-				result[i * 2 + 1] = lookup[source[i] & 0x0f];
-			}
-		}
-	}
-	return result;
-}