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authorMatt Ranostay <matt.ranostay@konsulko.com>2018-07-12 16:49:20 -0700
committerMatt Ranostay <matt.ranostay@konsulko.com>2018-07-17 13:23:25 -0700
commit3f91a6e6ef8243c5f37dce17284016715941f3bc (patch)
tree3b867dbdbc2207ebbd1634f66d258875c9ac06b9 /binding
parent885fedc954bb83a00591fd1381e9bd3749fc2935 (diff)
binding: nfc: add neardal support for reading NDEF encoded tags
Read RFID tags via neardal helper library that are NDEF encoded Bug-AGL: SPEC-1544 Change-Id: I90c0e8b4dec705ef56c7303ec2a592ca6ab9054c Signed-off-by: Matt Ranostay <matt.ranostay@konsulko.com>
Diffstat (limited to 'binding')
-rw-r--r--binding/afm-nfc-binding.c111
-rw-r--r--binding/afm-nfc-common.h4
2 files changed, 114 insertions, 1 deletions
diff --git a/binding/afm-nfc-binding.c b/binding/afm-nfc-binding.c
index 35fd00e..85719b5 100644
--- a/binding/afm-nfc-binding.c
+++ b/binding/afm-nfc-binding.c
@@ -28,6 +28,7 @@
#include <glib.h>
#include <glib-object.h>
#include <json-c/json.h>
+#include <neardal/neardal.h>
#include <nfc/nfc.h>
#include <nfc/nfc-types.h>
@@ -155,10 +156,98 @@ static nfc_binding_data *get_libnfc_instance()
return data;
}
+static void neard_cb_record_found(const char *tag_name, void *ptr)
+{
+ nfc_binding_data *data = ptr;
+ neardal_record *record;
+ int ret = neardal_get_record_properties(tag_name, &record);
+
+ if (ret == NEARDAL_SUCCESS) {
+ GVariantIter iter;
+ char *s = NULL;
+ GVariant *v, *value = (neardal_record_to_g_variant(record));
+ json_object *jresp = json_object_new_object();
+ json_object *jdict = json_object_new_object();
+
+ g_variant_iter_init(&iter, value);
+ json_object_object_add(jresp, "status", json_object_new_string("detected"));
+
+ while (g_variant_iter_loop(&iter, "{sv}", &s, &v)) {
+ gchar *str;
+
+ if (g_strcmp0("Name", s) == 0)
+ continue;
+
+ str = g_variant_print(v, 0);
+ str[strlen(str) - 1] = '\0';
+
+ json_object_object_add(jdict, s, json_object_new_string(str + 1));
+
+ g_free(str);
+ }
+
+ json_object_object_add(jresp, "record", jdict);
+
+ neardal_free_record(record);
+
+ pthread_mutex_lock(&mutex);
+ data->jresp = jresp;
+ json_object_get(jresp);
+ pthread_mutex_unlock(&mutex);
+
+ afb_event_push(presence_event, jresp);
+ }
+}
+
+static void neard_cb_tag_removed(const char *tag_name, void *ptr)
+{
+ nfc_binding_data *data = ptr;
+ json_object *jresp = json_object_new_object();
+
+ pthread_mutex_lock(&mutex);
+ if (data->jresp) {
+ json_object_put(data->jresp);
+ data->jresp = NULL;
+ }
+ pthread_mutex_unlock(&mutex);
+
+ json_object_object_add(jresp, "status", json_object_new_string("removed"));
+
+ afb_event_push(presence_event, jresp);
+
+ g_main_loop_quit(data->loop);
+}
+
+static void *neard_loop_thread(void *ptr)
+{
+ nfc_binding_data *data = ptr;
+ int ret;
+
+ data->loop = g_main_loop_new(NULL, FALSE);
+
+ neardal_set_cb_tag_lost(neard_cb_tag_removed, ptr);
+ neardal_set_cb_record_found(neard_cb_record_found, ptr);
+
+ while (1) {
+ ret = neardal_start_poll(data->adapter);
+
+ if (ret != NEARDAL_SUCCESS)
+ break;
+
+ g_main_loop_run(data->loop);
+ }
+
+ g_free(data->adapter);
+
+ return NULL;
+}
+
static int init(afb_api_t api)
{
pthread_t thread_id;
nfc_binding_data *data = get_libnfc_instance();
+ char **adapters = NULL;
+ int num_adapters, ret = -ENODEV;
presence_event = afb_daemon_make_event("presence");
@@ -168,7 +257,27 @@ static int init(afb_api_t api)
return pthread_create(&thread_id, NULL, nfc_loop_thread, data);
}
- return -ENODEV;
+ ret = neardal_get_adapters(&adapters, &num_adapters);
+
+ if (ret == NEARDAL_SUCCESS) {
+ ret = neardal_set_adapter_property(adapters[0], NEARD_ADP_PROP_POWERED, GINT_TO_POINTER(1));
+
+ if (ret == NEARDAL_SUCCESS) {
+ data = malloc(sizeof(nfc_binding_data));
+
+ if (data == NULL)
+ return -ENOMEM;
+
+ afb_api_set_userdata(api, data);
+
+ data->adapter = g_strdup(adapters[0]);
+ ret = pthread_create(&thread_id, NULL, neard_loop_thread, data);
+ }
+ }
+
+ neardal_free_array(&adapters);
+
+ return ret;
}
static void subscribe(afb_req_t request)
diff --git a/binding/afm-nfc-common.h b/binding/afm-nfc-common.h
index 84e70bd..c4c4cff 100644
--- a/binding/afm-nfc-common.h
+++ b/binding/afm-nfc-common.h
@@ -19,6 +19,7 @@
#ifndef AFM_NFC_COMMON_H
#define AFM_NFC_COMMON_H
+#include <glib.h>
#include <json-c/json.h>
#include <nfc/nfc-types.h>
@@ -31,6 +32,9 @@ typedef struct {
nfc_context *ctx;
nfc_device *dev;
+ gchar *adapter;
+ GMainLoop *loop;
+
/* cached JSON event response */
json_object *jresp;
} nfc_binding_data;