* add RRH gateway module, IQ transports, and its gtkwave template (experimental)

* update ethernet library and common lib * update runtime values of the lte-softmodem tx and rx threads based on an empirical model git-svn-id: http://svn.eurecom.fr/openair4G/trunk@7709 818b1a75-f10b-46b9-bf7c-635c3b92a50f
2015-07-16 15:31:04 +00:00
parent 4ef9500af4
commit ff2f80989b
28 changed files with 2968 additions and 339 deletions
@@ -1,3 +1,42 @@
+/*******************************************************************************
+    OpenAirInterface
+    Copyright(c) 1999 - 2014 Eurecom
+
+    OpenAirInterface is free software: you can redistribute it and/or modify
+    it under the terms of the GNU General Public License as published by
+    the Free Software Foundation, either version 3 of the License, or
+    (at your option) any later version.
+
+
+    OpenAirInterface is distributed in the hope that it will be useful,
+    but WITHOUT ANY WARRANTY; without even the implied warranty of
+    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+    GNU General Public License for more details.
+
+    You should have received a copy of the GNU General Public License
+    along with OpenAirInterface.The full GNU General Public License is
+    included in this distribution in the file called "COPYING". If not,
+    see <http://www.gnu.org/licenses/>.
+
+   Contact Information
+   OpenAirInterface Admin: openair_admin@eurecom.fr
+   OpenAirInterface Tech : openair_tech@eurecom.fr
+   OpenAirInterface Dev  : openair4g-devel@eurecom.fr
+
+   Address      : Eurecom, Campus SophiaTech, 450 Route des Chappes, CS 50193 - 06904 Biot Sophia Antipolis cedex, FRANCE
+
+ *******************************************************************************/
+/*! \file ethernet_lib.h
+ * \brief API to stream I/Q samples over standard ethernet
+ * \author Katerina Trilyraki, Navid Nikaein
+ * \date 2015
+ * \version 0.2
+ * \company Eurecom
+ * \maintainer:  navid.nikaein@eurecom.fr
+ * \note
+ * \warning 
+ */
+
 #include <arpa/inet.h>
 #include <linux/if_packet.h>
 #include <stdio.h>
@@ -8,8 +47,75 @@
 #include <net/if.h>
 #include <netinet/ether.h>

-int ethernet_socket_init(int Mod_id, char *dest_ip,int dest_port);

-int ethernet_write_data(int Mod_id, const void *buff, int nsamps,int cc);
+typedef struct {

-int ethernet_read_data(int Mod_id,void *buff, int nsamps,int cc);
+  // opaque eth data struct
+  //struct eth_if *dev;
+  // An empty ("") or NULL device identifier will result in the first encountered device being opened (using the first discovered backend)
+
+  int sockfd[4];
+  struct sockaddr_in dest_addr[4];
+
+
+  unsigned int buffer_size;
+  unsigned int timeout_ns;
+
+  //struct eth_metadata meta_rx;
+  //struct eth_metadata meta_tx;
+
+  unsigned int sample_rate;
+  // time offset between transmiter timestamp and receiver timestamp;
+  double tdiff;
+  // use brf_time_offset to get this value
+  int tx_forward_nsamps; //166 for 20Mhz
+
+
+  // --------------------------------
+  // Debug and output control
+  // --------------------------------
+  int num_underflows;
+  int num_overflows;
+  int num_seq_errors;
+  int num_rx_errors;
+  int num_tx_errors;
+
+  uint64_t tx_actual_nsamps; // actual number of samples transmitted
+  uint64_t rx_actual_nsamps;
+  uint64_t tx_nsamps; // number of planned samples
+  uint64_t rx_nsamps;
+  uint64_t tx_count; // number pf packets
+  uint64_t rx_count;
+  //openair0_timestamp rx_timestamp;
+
+} eth_state_t;
+
+#define 	ETH_META_STATUS_OVERRUN   (1 << 0)
+#define 	ETH_META_STATUS_UNDERRUN  (1 << 1)
+
+struct eth_meta_data{
+	uint64_t 	timestamp;
+	uint32_t 	flags;	 
+	uint32_t 	status;
+ 	unsigned int 	actual_count;
+};
+
+
+typedef struct {
+	/* packet's timestamp */
+  openair0_timestamp timestamp;
+  /* variable declared for alignment purposes (sample size=32 bit)  */
+  int16_t 	not_used;
+  /* antenna port used to resynchronize*/
+  int16_t 	antenna_id;
+} header_t;
+
+
+
+int ethernet_socket_init(openair0_device *device);
+
+int ethernet_write_data(openair0_device *device, openair0_timestamp timestamp, void **buff, int nsamps,int antenna_id);
+
+int ethernet_read_data(openair0_device *device,openair0_timestamp *timestamp,void **buff, int nsamps,int antenna_id);
+
+void ethernet_socket_opt (openair0_device *device);