diff --git a/pkg/semtech-loramac/contrib/semtech_loramac.c b/pkg/semtech-loramac/contrib/semtech_loramac.c
index 5212b30af74cde229174b1a2d32e59aa71a9c004..4e6d0195c2fa4e07b29cec45024c224de4861892 100644
--- a/pkg/semtech-loramac/contrib/semtech_loramac.c
+++ b/pkg/semtech-loramac/contrib/semtech_loramac.c
@@ -241,6 +241,15 @@ static void mlme_confirm(MlmeConfirm_t *confirm)
}
break;
+ case MLME_LINK_CHECK:
+ if (confirm->Status == LORAMAC_EVENT_INFO_STATUS_OK) {
+ DEBUG("[semtech-loramac] link check received\n");
+ msg_t msg;
+ msg.type = MSG_TYPE_LORAMAC_LINK_CHECK;
+ msg.content.ptr = confirm;
+ msg_send(&msg, semtech_loramac_pid);
+ }
+
default:
break;
}
@@ -313,6 +322,7 @@ void _init_loramac(semtech_loramac_t *mac,
semtech_loramac_set_class(mac, LORAMAC_DEFAULT_DEVICE_CLASS);
semtech_loramac_set_tx_port(mac, LORAMAC_DEFAULT_TX_PORT);
semtech_loramac_set_tx_mode(mac, LORAMAC_DEFAULT_TX_MODE);
+ mac->link_chk.available = false;
}
static void _join_otaa(semtech_loramac_t *mac)
@@ -522,6 +532,19 @@ void *_semtech_loramac_event_loop(void *arg)
mac->state = SEMTECH_LORAMAC_STATE_IDLE;
break;
}
+ case MSG_TYPE_LORAMAC_LINK_CHECK:
+ {
+ MlmeConfirm_t *confirm = (MlmeConfirm_t *)msg.content.ptr;
+ mac->link_chk.demod_margin = confirm->DemodMargin;
+ mac->link_chk.nb_gateways = confirm->NbGateways;
+ mac->link_chk.available = true;
+ DEBUG("[semtech-loramac] link check info received:\n"
+ " - Demodulation marging: %d\n"
+ " - Number of gateways: %d\n",
+ mac->link_chk.demod_margin,
+ mac->link_chk.nb_gateways);
+ break;
+ }
case MSG_TYPE_LORAMAC_TX_DONE:
{
DEBUG("[semtech-loramac] loramac TX done\n");
@@ -609,6 +632,16 @@ uint8_t semtech_loramac_join(semtech_loramac_t *mac, uint8_t type)
return SEMTECH_LORAMAC_JOIN_SUCCEEDED;
}
+void semtech_loramac_request_link_check(semtech_loramac_t *mac)
+{
+ mutex_lock(&mac->lock);
+ mac->link_chk.available = false;
+ MlmeReq_t mlmeReq;
+ mlmeReq.Type = MLME_LINK_CHECK;
+ LoRaMacMlmeRequest(&mlmeReq);
+ mutex_unlock(&mac->lock);
+}
+
uint8_t semtech_loramac_send(semtech_loramac_t *mac, uint8_t *data, uint8_t len)
{
mutex_lock(&mac->lock);
@@ -616,6 +649,7 @@ uint8_t semtech_loramac_send(semtech_loramac_t *mac, uint8_t *data, uint8_t len)
mibReq.Type = MIB_NETWORK_JOINED;
LoRaMacMibGetRequestConfirm(&mibReq);
bool is_joined = mibReq.Param.IsNetworkJoined;
+ mac->link_chk.available = false;
mutex_unlock(&mac->lock);
if (!is_joined) {
diff --git a/pkg/semtech-loramac/include/semtech_loramac.h b/pkg/semtech-loramac/include/semtech_loramac.h
index 321d626d32edecc24da08704cd1e1fe8c3ab8a11..065ddd0a2c898b3b5e2cec99e6923296ea11d68d 100644
--- a/pkg/semtech-loramac/include/semtech_loramac.h
+++ b/pkg/semtech-loramac/include/semtech_loramac.h
@@ -44,6 +44,7 @@ extern "C" {
#define MSG_TYPE_LORAMAC_JOIN (0x3461) /**< MAC join event */
#define MSG_TYPE_LORAMAC_TX_DONE (0x3462) /**< MAC TX completes */
#define MSG_TYPE_LORAMAC_RX (0x3463) /**< Some data received */
+#define MSG_TYPE_LORAMAC_LINK_CHECK (0x3464) /**< Link check info received */
/** @} */
/**
@@ -89,6 +90,15 @@ typedef struct {
uint8_t port; /**< RX port */
} semtech_loramac_rx_data_t;
+/**
+ * @brief LoRaMAC link check information
+ */
+typedef struct {
+ uint8_t demod_margin; /**< Demodulation margin */
+ uint8_t nb_gateways; /**< number of LoRa gateways found */
+ bool available; /**< new link check information avalable */
+} semtech_loramac_link_check_info_t;
+
/**
* @brief Semtech LoRaMAC descriptor
*/
@@ -105,6 +115,7 @@ typedef struct {
uint8_t nwkskey[LORAMAC_NWKSKEY_LEN]; /**< network session key */
uint8_t devaddr[LORAMAC_DEVADDR_LEN]; /**< device address */
semtech_loramac_rx_data_t rx_data; /**< struct handling the RX data */
+ semtech_loramac_link_check_info_t link_chk; /**< link check information */
} semtech_loramac_t;
/**
@@ -166,6 +177,13 @@ uint8_t semtech_loramac_send(semtech_loramac_t *mac, uint8_t *data, uint8_t len)
*/
uint8_t semtech_loramac_recv(semtech_loramac_t *mac);
+/**
+ * @brief Requests a LoRaWAN link check
+ *
+ * @param[in] mac Pointer to the mac
+ */
+void semtech_loramac_request_link_check(semtech_loramac_t *mac);
+
/**
* @brief Sets the device EUI
*
diff --git a/tests/pkg_semtech-loramac/main.c b/tests/pkg_semtech-loramac/main.c
index 1a8b98fa4aaf41a07584ddf8f1fd20e4d10538a1..0d19cf4e5f1ba90aadf7f58af4567cfe6d06f041 100644
--- a/tests/pkg_semtech-loramac/main.c
+++ b/tests/pkg_semtech-loramac/main.c
@@ -34,7 +34,7 @@ static char print_buf[LORAMAC_APPKEY_LEN * 2 + 1];
static void _loramac_usage(void)
{
- puts("Usage: loramac <get|set|join|tx>");
+ puts("Usage: loramac <get|set|join|tx|link_check>");
}
static void _loramac_join_usage(void)
@@ -416,8 +416,25 @@ static int _cmd_loramac(int argc, char **argv)
break;
}
+ if (loramac.link_chk.available) {
+ printf("Link check information:\n"
+ " - Demodulation margin: %d\n"
+ " - Number of gateways: %d\n",
+ loramac.link_chk.demod_margin,
+ loramac.link_chk.nb_gateways);
+ }
+
return 0;
}
+ else if (strcmp(argv[1], "link_check") == 0) {
+ if (argc > 2) {
+ _loramac_usage();
+ return 1;
+ }
+
+ semtech_loramac_request_link_check(&loramac);
+ puts("Link check request scheduled");
+ }
else {
_loramac_usage();
return 1;