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Commit 44ce13d7 authored by Raymond Knopp's avatar Raymond Knopp
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added ru_control.c (extraction of RU state-machine and support functions for fronthaul)

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targets/RT/USER/ru_control.c 0 → 100644
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/*******************************************************************************
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@lists.eurecom.fr
Address : Eurecom, Campus SophiaTech, 450 Route des Chappes, CS 50193 - 06904 Biot Sophia Antipolis cedex, FRANCE
*******************************************************************************/
/*! \file lte-ru.c
* \brief Top-level threads for RU entity
* \author R. Knopp, F. Kaltenberger, Navid Nikaein
* \date 2012
* \version 0.1
* \company Eurecom
* \email: knopp@eurecom.fr,florian.kaltenberger@eurecom.fr, navid.nikaein@eurecom.fr
* \note
* \warning
*/
#define _GNU_SOURCE
#include <stdio.h>
#include <stdlib.h>
#include <unistd.h>
#include <string.h>
#include <sys/ioctl.h>
#include <sys/types.h>
#include <sys/mman.h>
#include <sched.h>
#include <linux/sched.h>
#include <signal.h>
#include <execinfo.h>
#include <getopt.h>
#include <sys/sysinfo.h>
#include "rt_wrapper.h"
#undef MALLOC //there are two conflicting definitions, so we better make sure we don't use it at all
#include "assertions.h"
#include "msc.h"
#include "PHY/types.h"
#include "PHY/defs_common.h"
#undef MALLOC //there are two conflicting definitions, so we better make sure we don't use it at all
#include "../../ARCH/COMMON/common_lib.h"
#include "../../ARCH/ETHERNET/USERSPACE/LIB/ethernet_lib.h"
#include "PHY/LTE_TRANSPORT/if4_tools.h"
#include "PHY/LTE_TRANSPORT/if5_tools.h"
#include "PHY/phy_extern.h"
#include "LAYER2/MAC/mac_extern.h"
#include "PHY/LTE_TRANSPORT/transport_proto.h"
#include "SCHED/sched_eNB.h"
#include "PHY/LTE_ESTIMATION/lte_estimation.h"
#include "PHY/INIT/phy_init.h"
#include "LAYER2/MAC/mac.h"
#include "LAYER2/MAC/mac_extern.h"
#include "LAYER2/MAC/mac_proto.h"
#include "RRC/LTE/rrc_extern.h"
#include "PHY_INTERFACE/phy_interface.h"
#include "UTIL/LOG/log_extern.h"
#include "UTIL/OTG/otg_tx.h"
#include "UTIL/OTG/otg_externs.h"
#include "UTIL/MATH/oml.h"
#include "UTIL/LOG/vcd_signal_dumper.h"
#include "UTIL/OPT/opt.h"
#include "enb_config.h"
void configure_ru(int idx,
void *arg);
void configure_rru(int idx,
void *arg);
int attach_rru(RU_t *ru);
void fill_rf_config(RU_t *ru, char *rf_config_file);
void* ru_thread_control( void* param );
extern void phy_init_RU(RU_t*);
extern const char ru_states[6][9];
const char rru_format_options[4][20] = {"OAI_IF5_only","OAI_IF4p5_only","OAI_IF5_and_IF4p5","MBP_IF5"};
const char rru_formats[3][20] = {"OAI_IF5","MBP_IF5","OAI_IF4p5"};
const char ru_if_formats[4][20] = {"LOCAL_RF","REMOTE_OAI_IF5","REMOTE_MBP_IF5","REMOTE_OAI_IF4p5"};
extern int oai_exit;
extern void wait_eNBs(void);
int send_tick(RU_t *ru){
RRU_CONFIG_msg_t rru_config_msg;
rru_config_msg.type = RAU_tick;
rru_config_msg.len = sizeof(RRU_CONFIG_msg_t)-MAX_RRU_CONFIG_SIZE;
LOG_I(PHY,"Sending RAU tick to RRU %d\n",ru->idx);
AssertFatal((ru->ifdevice.trx_ctlsend_func(&ru->ifdevice,&rru_config_msg,rru_config_msg.len)!=-1),
"RU %d cannot access remote radio\n",ru->idx);
return 0;
}
int send_config(RU_t *ru, RRU_CONFIG_msg_t rru_config_msg){
rru_config_msg.type = RRU_config;
rru_config_msg.len = sizeof(RRU_CONFIG_msg_t)-MAX_RRU_CONFIG_SIZE+sizeof(RRU_config_t);
LOG_I(PHY,"Sending Configuration to RRU %d (num_bands %d,band0 %d,txfreq %u,rxfreq %u,att_tx %d,att_rx %d,N_RB_DL %d,N_RB_UL %d,3/4FS %d, prach_FO %d, prach_CI %d\n",ru->idx,
((RRU_config_t *)&rru_config_msg.msg[0])->num_bands,
((RRU_config_t *)&rru_config_msg.msg[0])->band_list[0],
((RRU_config_t *)&rru_config_msg.msg[0])->tx_freq[0],
((RRU_config_t *)&rru_config_msg.msg[0])->rx_freq[0],
((RRU_config_t *)&rru_config_msg.msg[0])->att_tx[0],
((RRU_config_t *)&rru_config_msg.msg[0])->att_rx[0],
((RRU_config_t *)&rru_config_msg.msg[0])->N_RB_DL[0],
((RRU_config_t *)&rru_config_msg.msg[0])->N_RB_UL[0],
((RRU_config_t *)&rru_config_msg.msg[0])->threequarter_fs[0],
((RRU_config_t *)&rru_config_msg.msg[0])->prach_FreqOffset[0],
((RRU_config_t *)&rru_config_msg.msg[0])->prach_ConfigIndex[0]);
AssertFatal((ru->ifdevice.trx_ctlsend_func(&ru->ifdevice,&rru_config_msg,rru_config_msg.len)!=-1),
"RU %d failed send configuration to remote radio\n",ru->idx);
return 0;
}
int send_capab(RU_t *ru){
RRU_CONFIG_msg_t rru_config_msg;
RRU_capabilities_t *cap;
int i=0;
rru_config_msg.type = RRU_capabilities;
rru_config_msg.len = sizeof(RRU_CONFIG_msg_t)-MAX_RRU_CONFIG_SIZE+sizeof(RRU_capabilities_t);
cap = (RRU_capabilities_t*)&rru_config_msg.msg[0];
LOG_I(PHY,"Sending Capabilities (len %d, num_bands %d,max_pdschReferenceSignalPower %d, max_rxgain %d, nb_tx %d, nb_rx %d)\n",
(int)rru_config_msg.len,ru->num_bands,ru->max_pdschReferenceSignalPower,ru->max_rxgain,ru->nb_tx,ru->nb_rx);
switch (ru->function) {
case NGFI_RRU_IF4p5:
cap->FH_fmt = OAI_IF4p5_only;
break;
case NGFI_RRU_IF5:
cap->FH_fmt = OAI_IF5_only;
break;
case MBP_RRU_IF5:
cap->FH_fmt = MBP_IF5;
break;
default:
AssertFatal(1==0,"RU_function is unknown %d\n",RC.ru[0]->function);
break;
}
cap->num_bands = ru->num_bands;
for (i=0;i<ru->num_bands;i++) {
LOG_I(PHY,"Band %d: nb_rx %d nb_tx %d pdschReferenceSignalPower %d rxgain %d\n",
ru->band[i],ru->nb_rx,ru->nb_tx,ru->max_pdschReferenceSignalPower,ru->max_rxgain);
cap->band_list[i] = ru->band[i];
cap->nb_rx[i] = ru->nb_rx;
cap->nb_tx[i] = ru->nb_tx;
cap->max_pdschReferenceSignalPower[i] = ru->max_pdschReferenceSignalPower;
cap->max_rxgain[i] = ru->max_rxgain;
}
AssertFatal((ru->ifdevice.trx_ctlsend_func(&ru->ifdevice,&rru_config_msg,rru_config_msg.len)!=-1),
"RU %d failed send capabilities to RAU\n",ru->idx);
return 0;
}
int attach_rru(RU_t *ru) {
ssize_t msg_len,len;
RRU_CONFIG_msg_t rru_config_msg;
int received_capabilities=0;
wait_eNBs();
// Wait for capabilities
while (received_capabilities==0) {
memset((void*)&rru_config_msg,0,sizeof(rru_config_msg));
rru_config_msg.type = RAU_tick;
rru_config_msg.len = sizeof(RRU_CONFIG_msg_t)-MAX_RRU_CONFIG_SIZE;
LOG_I(PHY,"Sending RAU tick to RRU %d\n",ru->idx);
AssertFatal((ru->ifdevice.trx_ctlsend_func(&ru->ifdevice,&rru_config_msg,rru_config_msg.len)!=-1),
"RU %d cannot access remote radio\n",ru->idx);
msg_len = sizeof(RRU_CONFIG_msg_t)-MAX_RRU_CONFIG_SIZE+sizeof(RRU_capabilities_t);
// wait for answer with timeout
if ((len = ru->ifdevice.trx_ctlrecv_func(&ru->ifdevice,
&rru_config_msg,
msg_len))<0) {
LOG_I(PHY,"Waiting for RRU %d\n",ru->idx);
}
else if (rru_config_msg.type == RRU_capabilities) {
AssertFatal(rru_config_msg.len==msg_len,"Received capabilities with incorrect length (%d!=%d)\n",(int)rru_config_msg.len,(int)msg_len);
LOG_I(PHY,"Received capabilities from RRU %d (len %d/%d, num_bands %d,max_pdschReferenceSignalPower %d, max_rxgain %d, nb_tx %d, nb_rx %d)\n",ru->idx,
(int)rru_config_msg.len,(int)msg_len,
((RRU_capabilities_t*)&rru_config_msg.msg[0])->num_bands,
((RRU_capabilities_t*)&rru_config_msg.msg[0])->max_pdschReferenceSignalPower[0],
((RRU_capabilities_t*)&rru_config_msg.msg[0])->max_rxgain[0],
((RRU_capabilities_t*)&rru_config_msg.msg[0])->nb_tx[0],
((RRU_capabilities_t*)&rru_config_msg.msg[0])->nb_rx[0]);
received_capabilities=1;
}
else {
LOG_E(PHY,"Received incorrect message %d from RRU %d\n",rru_config_msg.type,ru->idx);
}
}
configure_ru(ru->idx,
(RRU_capabilities_t *)&rru_config_msg.msg[0]);
rru_config_msg.type = RRU_config;
rru_config_msg.len = sizeof(RRU_CONFIG_msg_t)-MAX_RRU_CONFIG_SIZE+sizeof(RRU_config_t);
LOG_I(PHY,"Sending Configuration to RRU %d (num_bands %d,band0 %d,txfreq %u,rxfreq %u,att_tx %d,att_rx %d,N_RB_DL %d,N_RB_UL %d,3/4FS %d, prach_FO %d, prach_CI %d)\n",ru->idx,
((RRU_config_t *)&rru_config_msg.msg[0])->num_bands,
((RRU_config_t *)&rru_config_msg.msg[0])->band_list[0],
((RRU_config_t *)&rru_config_msg.msg[0])->tx_freq[0],
((RRU_config_t *)&rru_config_msg.msg[0])->rx_freq[0],
((RRU_config_t *)&rru_config_msg.msg[0])->att_tx[0],
((RRU_config_t *)&rru_config_msg.msg[0])->att_rx[0],
((RRU_config_t *)&rru_config_msg.msg[0])->N_RB_DL[0],
((RRU_config_t *)&rru_config_msg.msg[0])->N_RB_UL[0],
((RRU_config_t *)&rru_config_msg.msg[0])->threequarter_fs[0],
((RRU_config_t *)&rru_config_msg.msg[0])->prach_FreqOffset[0],
((RRU_config_t *)&rru_config_msg.msg[0])->prach_ConfigIndex[0]);
AssertFatal((ru->ifdevice.trx_ctlsend_func(&ru->ifdevice,&rru_config_msg,rru_config_msg.len)!=-1),
"RU %d failed send configuration to remote radio\n",ru->idx);
return 0;
}
int connect_rau(RU_t *ru) {
RRU_CONFIG_msg_t rru_config_msg;
ssize_t msg_len;
int tick_received = 0;
int configuration_received = 0;
RRU_capabilities_t *cap;
int i;
int len;
// wait for RAU_tick
while (tick_received == 0) {
msg_len = sizeof(RRU_CONFIG_msg_t)-MAX_RRU_CONFIG_SIZE;
if ((len = ru->ifdevice.trx_ctlrecv_func(&ru->ifdevice,
&rru_config_msg,
msg_len))<0) {
LOG_I(PHY,"Waiting for RAU\n");
}
else {
if (rru_config_msg.type == RAU_tick) {
LOG_I(PHY,"Tick received from RAU\n");
tick_received = 1;
}
else LOG_E(PHY,"Received erroneous message (%d)from RAU, expected RAU_tick\n",rru_config_msg.type);
}
}
// send capabilities
rru_config_msg.type = RRU_capabilities;
rru_config_msg.len = sizeof(RRU_CONFIG_msg_t)-MAX_RRU_CONFIG_SIZE+sizeof(RRU_capabilities_t);
cap = (RRU_capabilities_t*)&rru_config_msg.msg[0];
LOG_I(PHY,"Sending Capabilities (len %d, num_bands %d,max_pdschReferenceSignalPower %d, max_rxgain %d, nb_tx %d, nb_rx %d)\n",
(int)rru_config_msg.len,ru->num_bands,ru->max_pdschReferenceSignalPower,ru->max_rxgain,ru->nb_tx,ru->nb_rx);
switch (ru->function) {
case NGFI_RRU_IF4p5:
cap->FH_fmt = OAI_IF4p5_only;
break;
case NGFI_RRU_IF5:
cap->FH_fmt = OAI_IF5_only;
break;
case MBP_RRU_IF5:
cap->FH_fmt = MBP_IF5;
break;
default:
AssertFatal(1==0,"RU_function is unknown %d\n",RC.ru[0]->function);
break;
}
cap->num_bands = ru->num_bands;
for (i=0;i<ru->num_bands;i++) {
LOG_I(PHY,"Band %d: nb_rx %d nb_tx %d pdschReferenceSignalPower %d rxgain %d\n",
ru->band[i],ru->nb_rx,ru->nb_tx,ru->max_pdschReferenceSignalPower,ru->max_rxgain);
cap->band_list[i] = ru->band[i];
cap->nb_rx[i] = ru->nb_rx;
cap->nb_tx[i] = ru->nb_tx;
cap->max_pdschReferenceSignalPower[i] = ru->max_pdschReferenceSignalPower;
cap->max_rxgain[i] = ru->max_rxgain;
}
AssertFatal((ru->ifdevice.trx_ctlsend_func(&ru->ifdevice,&rru_config_msg,rru_config_msg.len)!=-1),
"RU %d failed send capabilities to RAU\n",ru->idx);
// wait for configuration
rru_config_msg.len = sizeof(RRU_CONFIG_msg_t)-MAX_RRU_CONFIG_SIZE+sizeof(RRU_config_t);
while (configuration_received == 0) {
if ((len = ru->ifdevice.trx_ctlrecv_func(&ru->ifdevice,
&rru_config_msg,
rru_config_msg.len))<0) {
LOG_I(PHY,"Waiting for configuration from RAU\n");
}
else {
LOG_I(PHY,"Configuration received from RAU (num_bands %d,band0 %d,txfreq %u,rxfreq %u,att_tx %d,att_rx %d,N_RB_DL %d,N_RB_UL %d,3/4FS %d, prach_FO %d, prach_CI %d)\n",
((RRU_config_t *)&rru_config_msg.msg[0])->num_bands,
((RRU_config_t *)&rru_config_msg.msg[0])->band_list[0],
((RRU_config_t *)&rru_config_msg.msg[0])->tx_freq[0],
((RRU_config_t *)&rru_config_msg.msg[0])->rx_freq[0],
((RRU_config_t *)&rru_config_msg.msg[0])->att_tx[0],
((RRU_config_t *)&rru_config_msg.msg[0])->att_rx[0],
((RRU_config_t *)&rru_config_msg.msg[0])->N_RB_DL[0],
((RRU_config_t *)&rru_config_msg.msg[0])->N_RB_UL[0],
((RRU_config_t *)&rru_config_msg.msg[0])->threequarter_fs[0],
((RRU_config_t *)&rru_config_msg.msg[0])->prach_FreqOffset[0],
((RRU_config_t *)&rru_config_msg.msg[0])->prach_ConfigIndex[0]);
configure_rru(ru->idx,
(void*)&rru_config_msg.msg[0]);
configuration_received = 1;
}
}
return 0;
}
int check_capabilities(RU_t *ru,RRU_capabilities_t *cap) {
FH_fmt_options_t fmt = cap->FH_fmt;
int i;
int found_band=0;
LOG_I(PHY,"RRU %d, num_bands %d, looking for band %d\n",ru->idx,cap->num_bands,ru->frame_parms.eutra_band);
for (i=0;i<cap->num_bands;i++) {
LOG_I(PHY,"band %d on RRU %d\n",cap->band_list[i],ru->idx);
if (ru->frame_parms.eutra_band == cap->band_list[i]) {
found_band=1;
break;
}
}
if (found_band == 0) {
LOG_I(PHY,"Couldn't find target EUTRA band %d on RRU %d\n",ru->frame_parms.eutra_band,ru->idx);
return(-1);
}
switch (ru->if_south) {
case LOCAL_RF:
AssertFatal(1==0, "This RU should not have a local RF, exiting\n");
return(0);
break;
case REMOTE_IF5:
if (fmt == OAI_IF5_only || fmt == OAI_IF5_and_IF4p5) return(0);
break;
case REMOTE_IF4p5:
if (fmt == OAI_IF4p5_only || fmt == OAI_IF5_and_IF4p5) return(0);
break;
case REMOTE_MBP_IF5:
if (fmt == MBP_IF5) return(0);
break;
default:
LOG_I(PHY,"No compatible Fronthaul interface found for RRU %d\n", ru->idx);
return(-1);
}
return(-1);
}
void configure_ru(int idx,
void *arg) {
RU_t *ru = RC.ru[idx];
RRU_config_t *config = (RRU_config_t *)arg;
RRU_capabilities_t *capabilities = (RRU_capabilities_t*)arg;
int ret;
LOG_I(PHY, "Received capabilities from RRU %d\n",idx);
if (capabilities->FH_fmt < MAX_FH_FMTs) LOG_I(PHY, "RU FH options %s\n",rru_format_options[capabilities->FH_fmt]);
AssertFatal((ret=check_capabilities(ru,capabilities)) == 0,
"Cannot configure RRU %d, check_capabilities returned %d\n", idx,ret);
// take antenna capabilities of RRU
ru->nb_tx = capabilities->nb_tx[0];
ru->nb_rx = capabilities->nb_rx[0];
// Pass configuration to RRU
LOG_I(PHY, "Using %s fronthaul (%d), band %d \n",ru_if_formats[ru->if_south],ru->if_south,ru->frame_parms.eutra_band);
// wait for configuration
config->FH_fmt = ru->if_south;
config->num_bands = 1;
config->band_list[0] = ru->frame_parms.eutra_band;
config->tx_freq[0] = ru->frame_parms.dl_CarrierFreq;
config->rx_freq[0] = ru->frame_parms.ul_CarrierFreq;
config->tdd_config[0] = ru->frame_parms.tdd_config;
config->tdd_config_S[0] = ru->frame_parms.tdd_config_S;
config->att_tx[0] = ru->att_tx;
config->att_rx[0] = ru->att_rx;
config->N_RB_DL[0] = ru->frame_parms.N_RB_DL;
config->N_RB_UL[0] = ru->frame_parms.N_RB_UL;
config->threequarter_fs[0] = ru->frame_parms.threequarter_fs;
if (ru->if_south==REMOTE_IF4p5) {
config->prach_FreqOffset[0] = ru->frame_parms.prach_config_common.prach_ConfigInfo.prach_FreqOffset;
config->prach_ConfigIndex[0] = ru->frame_parms.prach_config_common.prach_ConfigInfo.prach_ConfigIndex;
LOG_I(PHY,"REMOTE_IF4p5: prach_FrequOffset %d, prach_ConfigIndex %d\n",
config->prach_FreqOffset[0],config->prach_ConfigIndex[0]);
#if (RRC_VERSION >= MAKE_VERSION(14, 0, 0))
int i;
for (i=0;i<4;i++) {
config->emtc_prach_CElevel_enable[0][i] = ru->frame_parms.prach_emtc_config_common.prach_ConfigInfo.prach_CElevel_enable[i];
config->emtc_prach_FreqOffset[0][i] = ru->frame_parms.prach_emtc_config_common.prach_ConfigInfo.prach_FreqOffset[i];
config->emtc_prach_ConfigIndex[0][i] = ru->frame_parms.prach_emtc_config_common.prach_ConfigInfo.prach_ConfigIndex[i];
}
#endif
}
init_frame_parms(&ru->frame_parms,1);
phy_init_RU(ru);
}
void configure_rru(int idx,
void *arg) {
RRU_config_t *config = (RRU_config_t *)arg;
RU_t *ru = RC.ru[idx];
ru->frame_parms.eutra_band = config->band_list[0];
ru->frame_parms.dl_CarrierFreq = config->tx_freq[0];
ru->frame_parms.ul_CarrierFreq = config->rx_freq[0];
if (ru->frame_parms.dl_CarrierFreq == ru->frame_parms.ul_CarrierFreq) {
ru->frame_parms.frame_type = TDD;
ru->frame_parms.tdd_config = config->tdd_config[0];
ru->frame_parms.tdd_config_S = config->tdd_config_S[0];
}
else
ru->frame_parms.frame_type = FDD;
ru->att_tx = config->att_tx[0];
ru->att_rx = config->att_rx[0];
ru->frame_parms.N_RB_DL = config->N_RB_DL[0];
ru->frame_parms.N_RB_UL = config->N_RB_UL[0];
ru->frame_parms.threequarter_fs = config->threequarter_fs[0];
ru->frame_parms.pdsch_config_common.referenceSignalPower = ru->max_pdschReferenceSignalPower-config->att_tx[0];
if (ru->function==NGFI_RRU_IF4p5) {
ru->frame_parms.att_rx = ru->att_rx;
ru->frame_parms.att_tx = ru->att_tx;
LOG_I(PHY,"Setting ru->function to NGFI_RRU_IF4p5, prach_FrequOffset %d, prach_ConfigIndex %d, att (%d,%d)\n",
config->prach_FreqOffset[0],config->prach_ConfigIndex[0],ru->att_tx,ru->att_rx);
ru->frame_parms.prach_config_common.prach_ConfigInfo.prach_FreqOffset = config->prach_FreqOffset[0];
ru->frame_parms.prach_config_common.prach_ConfigInfo.prach_ConfigIndex = config->prach_ConfigIndex[0];
#if (RRC_VERSION >= MAKE_VERSION(14, 0, 0))
for (int i=0;i<4;i++) {
ru->frame_parms.prach_emtc_config_common.prach_ConfigInfo.prach_CElevel_enable[i] = config->emtc_prach_CElevel_enable[0][i];
ru->frame_parms.prach_emtc_config_common.prach_ConfigInfo.prach_FreqOffset[i] = config->emtc_prach_FreqOffset[0][i];
ru->frame_parms.prach_emtc_config_common.prach_ConfigInfo.prach_ConfigIndex[i] = config->emtc_prach_ConfigIndex[0][i];
}
#endif
}
init_frame_parms(&ru->frame_parms,1);
fill_rf_config(ru,ru->rf_config_file);
// phy_init_RU(ru);
}
void* ru_thread_control( void* param ) {
RU_t *ru = (RU_t*)param;
RU_proc_t *proc = &ru->proc;
RRU_CONFIG_msg_t rru_config_msg;
ssize_t msg_len;
int len, ret;
// Start IF device if any
if (ru->start_if) {
LOG_I(PHY,"Starting IF interface for RU %d\n",ru->idx);
AssertFatal(
ru->start_if(ru,NULL) == 0, "Could not start the IF device\n");
if (ru->if_south != LOCAL_RF) wait_eNBs();
}
ru->state = (ru->function==eNodeB_3GPP)? RU_RUN : RU_IDLE;
LOG_I(PHY,"Control channel ON for RU %d\n", ru->idx);
while (!oai_exit) // Change the cond
{
msg_len = sizeof(RRU_CONFIG_msg_t); // TODO : check what should be the msg len
if (ru->state == RU_IDLE && ru->if_south != LOCAL_RF)
send_tick(ru);
if ((len = ru->ifdevice.trx_ctlrecv_func(&ru->ifdevice,
&rru_config_msg,
msg_len))<0) {
LOG_D(PHY,"Waiting msg for RU %d\n", ru->idx);
}
else
{
switch(rru_config_msg.type)
{
case RAU_tick: // RRU
if (ru->if_south != LOCAL_RF){
LOG_I(PHY,"Received Tick msg...Ignoring\n");
}else{
LOG_I(PHY,"Tick received from RAU\n");
if (send_capab(ru) == 0) ru->state = RU_CONFIG;
}
break;
case RRU_capabilities: // RAU
if (ru->if_south == LOCAL_RF) LOG_E(PHY,"Received RRU_capab msg...Ignoring\n");
else{
msg_len = sizeof(RRU_CONFIG_msg_t)-MAX_RRU_CONFIG_SIZE+sizeof(RRU_capabilities_t);
AssertFatal(rru_config_msg.len==msg_len,"Received capabilities with incorrect length (%d!=%d)\n",(int)rru_config_msg.len,(int)msg_len);
LOG_I(PHY,"Received capabilities from RRU %d (len %d/%d, num_bands %d,max_pdschReferenceSignalPower %d, max_rxgain %d, nb_tx %d, nb_rx %d)\n",ru->idx,
(int)rru_config_msg.len,(int)msg_len,
((RRU_capabilities_t*)&rru_config_msg.msg[0])->num_bands,
((RRU_capabilities_t*)&rru_config_msg.msg[0])->max_pdschReferenceSignalPower[0],
((RRU_capabilities_t*)&rru_config_msg.msg[0])->max_rxgain[0],
((RRU_capabilities_t*)&rru_config_msg.msg[0])->nb_tx[0],
((RRU_capabilities_t*)&rru_config_msg.msg[0])->nb_rx[0]);
configure_ru(ru->idx,(RRU_capabilities_t *)&rru_config_msg.msg[0]);
// send config
if (send_config(ru,rru_config_msg) == 0) ru->state = RU_CONFIG;
}
break;
case RRU_config: // RRU
if (ru->if_south == LOCAL_RF){
LOG_I(PHY,"Configuration received from RAU (num_bands %d,band0 %d,txfreq %u,rxfreq %u,att_tx %d,att_rx %d,N_RB_DL %d,N_RB_UL %d,3/4FS %d, prach_FO %d, prach_CI %d)\n",
((RRU_config_t *)&rru_config_msg.msg[0])->num_bands,
((RRU_config_t *)&rru_config_msg.msg[0])->band_list[0],
((RRU_config_t *)&rru_config_msg.msg[0])->tx_freq[0],
((RRU_config_t *)&rru_config_msg.msg[0])->rx_freq[0],
((RRU_config_t *)&rru_config_msg.msg[0])->att_tx[0],
((RRU_config_t *)&rru_config_msg.msg[0])->att_rx[0],
((RRU_config_t *)&rru_config_msg.msg[0])->N_RB_DL[0],
((RRU_config_t *)&rru_config_msg.msg[0])->N_RB_UL[0],
((RRU_config_t *)&rru_config_msg.msg[0])->threequarter_fs[0],
((RRU_config_t *)&rru_config_msg.msg[0])->prach_FreqOffset[0],
((RRU_config_t *)&rru_config_msg.msg[0])->prach_ConfigIndex[0]);
configure_rru(ru->idx, (void*)&rru_config_msg.msg[0]);
fill_rf_config(ru,ru->rf_config_file);
init_frame_parms(&ru->frame_parms,1);
ru->frame_parms.nb_antennas_rx = ru->nb_rx;
phy_init_RU(ru);
//if (ru->is_slave == 1) lte_sync_time_init(&ru->frame_parms);
if (ru->rfdevice.is_init != 1){
ret = openair0_device_load(&ru->rfdevice,&ru->openair0_cfg);
}
if (ru->rfdevice.trx_config_func) AssertFatal((ru->rfdevice.trx_config_func(&ru->rfdevice,&ru->openair0_cfg)==0),
"Failed to configure RF device for RU %d\n",ru->idx);
if (setup_RU_buffers(ru)!=0) {
printf("Exiting, cannot initialize RU Buffers\n");
exit(-1);
}
// send CONFIG_OK
rru_config_msg.type = RRU_config_ok;
rru_config_msg.len = sizeof(RRU_CONFIG_msg_t);
LOG_I(PHY,"Sending CONFIG_OK to RAU %d\n", ru->idx);
AssertFatal((ru->ifdevice.trx_ctlsend_func(&ru->ifdevice,&rru_config_msg,rru_config_msg.len)!=-1),
"RU %d failed send CONFIG_OK to RAU\n",ru->idx);
reset_proc(ru);
ru->state = RU_READY;
} else LOG_E(PHY,"Received RRU_config msg...Ignoring\n");
break;
case RRU_config_ok: // RAU
if (ru->if_south == LOCAL_RF) LOG_E(PHY,"Received RRU_config_ok msg...Ignoring\n");
else{
if (setup_RU_buffers(ru)!=0) {
printf("Exiting, cannot initialize RU Buffers\n");
exit(-1);
}
// Set state to RUN for Master RU, Others on SYNC
ru->state = (ru->is_slave == 1) ? RU_SYNC : RU_RUN ;
ru->in_synch = 0;
LOG_I(PHY, "Signaling main thread that RU %d (is_slave %d) is ready in state %s\n",ru->idx,ru->is_slave,ru_states[ru->state]);
pthread_mutex_lock(&RC.ru_mutex);
RC.ru_mask &= ~(1<<ru->idx);
pthread_cond_signal(&RC.ru_cond);
pthread_mutex_unlock(&RC.ru_mutex);
wait_sync("ru_thread_control");
// send start
rru_config_msg.type = RRU_start;
rru_config_msg.len = sizeof(RRU_CONFIG_msg_t); // TODO: set to correct msg len
LOG_I(PHY,"Sending Start to RRU %d\n", ru->idx);
AssertFatal((ru->ifdevice.trx_ctlsend_func(&ru->ifdevice,&rru_config_msg,rru_config_msg.len)!=-1),"Failed to send msg to RU %d\n",ru->idx);
pthread_mutex_lock(&proc->mutex_ru);
proc->instance_cnt_ru = 1;
pthread_mutex_unlock(&proc->mutex_ru);
if (pthread_cond_signal(&proc->cond_ru_thread) != 0) {
LOG_E( PHY, "ERROR pthread_cond_signal for RU %d\n",ru->idx);
exit_fun( "ERROR pthread_cond_signal" );
break;
}
}
break;
case RRU_start: // RRU
if (ru->if_south == LOCAL_RF){
LOG_I(PHY,"Start received from RAU\n");
if (ru->state == RU_READY){
LOG_I(PHY, "Signaling main thread that RU %d is ready\n",ru->idx);
pthread_mutex_lock(&RC.ru_mutex);
RC.ru_mask &= ~(1<<ru->idx);
pthread_cond_signal(&RC.ru_cond);
pthread_mutex_unlock(&RC.ru_mutex);
wait_sync("ru_thread_control");
ru->state = (ru->is_slave == 1) ? RU_SYNC : RU_RUN ;
ru->cmd = EMPTY;
pthread_mutex_lock(&proc->mutex_ru);
proc->instance_cnt_ru = 1;
pthread_mutex_unlock(&proc->mutex_ru);
if (pthread_cond_signal(&proc->cond_ru_thread) != 0) {
LOG_E( PHY, "ERROR pthread_cond_signal for RU %d\n",ru->idx);
exit_fun( "ERROR pthread_cond_signal" );
break;
}
}
else LOG_E(PHY,"RRU not ready, cannot start\n");
} else LOG_E(PHY,"Received RRU_start msg...Ignoring\n");
break;
case RRU_sync_ok: //RAU
if (ru->if_south == LOCAL_RF) LOG_E(PHY,"Received RRU_config_ok msg...Ignoring\n");
else{
if (ru->is_slave == 1){
LOG_I(PHY,"Received RRU_sync_ok from RRU %d\n",ru->idx);
// Just change the state of the RRU to unblock ru_thread()
ru->state = RU_RUN;
}else LOG_E(PHY,"Received RRU_sync_ok from a master RRU...Ignoring\n");
}
break;
case RRU_frame_resynch: //RRU
if (ru->if_south != LOCAL_RF) LOG_E(PHY,"Received RRU frame resynch message, should not happen in RAU\n");
else {
LOG_I(PHY,"Received RRU_frame_resynch command\n");
ru->cmd = RU_FRAME_RESYNCH;
ru->cmdval = ((uint16_t*)&rru_config_msg.msg[0])[0];
LOG_I(PHY,"Received Frame Resynch messaage with value %d\n",ru->cmdval);
}
break;
case RRU_stop: // RRU
if (ru->if_south == LOCAL_RF){
LOG_I(PHY,"Stop received from RAU\n");
if (ru->state == RU_RUN || ru->state == RU_ERROR){
LOG_I(PHY,"Stopping RRU\n");
ru->state = RU_READY;
// TODO: stop ru_thread
}else{
LOG_I(PHY,"RRU not running, can't stop\n");
}
}else LOG_E(PHY,"Received RRU_stop msg...Ignoring\n");
break;
default:
if (ru->if_south != LOCAL_RF){
if (ru->state == RU_IDLE){
// Keep sending TICK
send_tick(ru);
}
}
break;
} // switch
} //else
}//while
return(NULL);
}
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