add nfc binding

Change-Id: I1ebf8e803436430490201db533c2a5a04c04295e
Signed-off-by: Loïc Collignon <loic.collignon@iot.bzh>

1 files changed, 113 insertions, 0 deletions

diff --git a/src/nfc-binding.c b/src/nfc-binding.c
new file mode 100644
index 0000000..3d96cbb
--- /dev/null
+++ b/src/nfc-binding.c
@@ -0,0 +1,113 @@
+#include "nfc-binding.h"
+
+#if USE_LIBNFC == 1
+#include "libnfc_reader.h"
+#endif
+
+struct afb_event on_nfc_read_event;
+
+/// @brief Binding's initialization.
+/// @return Exit code, zero on success, non-zero otherwise.
+int init()
+{
+	on_nfc_read_event = afb_daemon_make_event("on-nfc-read");
+	if (!afb_event_is_valid(on_nfc_read_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_read_event)) afb_req_fail(req, NULL, "Subscription failure!");
+	else afb_req_success(req, NULL, "Subscription success!");
+}
+
+/// @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_read_event)) afb_req_fail(req, NULL, "Unsubscription failure!");
+	else afb_req_success(req, NULL, "Unsubscription success!");
+}
+
+/// @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_polling(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);
+}
+
+void verb_stop_polling(struct afb_req req)
+{
+	afb_req_fail(req, "Not implemented yet!", NULL);
+}