- Fix: avoid infinite loop on mulitcast read thread if no data to read

Pre-ci test passed

git-svn-id: http://svn.eurecom.fr/openair4G/trunk@4000 818b1a75-f10b-46b9-bf7c-635c3b92a50f

README.txt

+The OpenAirInterface software is composed of four different parts: 
+
+openair1: 3GPP LTE Rel-8 PHY layer + PHY RF simulation
+
+openair2: 3GPP LTE Rel-9 RLC/MAC/PDCP and two RRC implementations
+
+openair3: some networking scripts 
+
+openairITS: IEEE 802.11p software modem (all layers)
+
+targets: scripts to compile and lauch different system targets (simulation, emulation and real-time platforms, user-space tools for these platforms (tbd)) 
+
+see README files in these subdirectories for more information
+
+see also https://twiki.eurecom.fr/twiki/bin/view/OpenAirInterface/WebHome
+
+.

maketags

+#!/bin/sh
+echo "building ctags for openair1 and openair2 ..."
+ctags -e -R  --exclude=openair3 --exclude=openair1/DOCS --exclude=openair2/DOCS --exclude=openair2/RRC/CELLULAR --exclude=openair2/NAS/DRIVER/CELLULAR --exclude=openair2/SIMULATION --exclude=openairITS

oaienv

+
+export OPENAIR_HOME=$(pwd)
+export OPENAIR1_DIR=$OPENAIR_HOME/openair1
+export OPENAIR2_DIR=$OPENAIR_HOME/openair2
+export OPENAIR3_DIR=$OPENAIR_HOME/openair3
+export OPENAIR_TARGETS=$OPENAIR_HOME/targets
+
+alias  oai='cd $OPENAIR_HOME'
+alias oai0='cd $OPENAIR0_DIR'
+alias oai1='cd $OPENAIR1_DIR'
+alias oai2='cd $OPENAIR2_DIR'
+alias oai3='cd $OPENAIR3_DIR'
+alias oait='cd $OPENAIR_TARGETS'
+alias oaiu='cd $OPENAIR2_DIR/UTIL'
+alias oais='cd $OPENAIR_TARGETS/SIMU/USER'
+alias oaiex='cd $OPENAIR_TARGETS/SIMU/EXAMPLES'

openair1/ARCH/CBMIMO1/DEVICE_DRIVER/Makefile

+CCC = gcc
+KERNEL_MAIN_TYPE=$(shell echo `uname -r | cut -d. -f-2  | tr "." "_"`)
+export KERNEL_MAIN_TYPE
+
+SUBVERSION=$(shell echo `grep '^SUBLEVEL =' /usr/src/linux/Makefile | sed -e 's, ,,g' | sed -e 's/SUBLEVEL=//'`)
+IS_KERNEL_SUBVERSION_GREATER_THAN_20=$(shell if [ $(SUBVERSION) -ge 20 ] ; then echo true ; fi)
+
+GRPCI_SOFTCONFIG_H=grpci_softconfig.h
+GRPCI_SOFTREGS_H=grpci_softregs.h
+
+TOP_DIR = ../../..
+OPENAIR1_TOP = ../../..
+OPENAIR2_TOP = ../../../../openair2
+OPENAIR3_TOP = ../../../../openair3
+
+ifdef RTAI
+# Get the RTAI variables
+CCC = $(shell rtai-config --cc)
+RTAI_SUBVERSION=$(shell rtai-config --version | sed -e 's/^..\(.\).*$$/\1/')
+IS_RTAI_SUBVERSION_LESS_THAN_FIVE=$(shell if [ $(RTAI_SUBVERSION) -lt 5 ] ; then echo true ; fi)
+
+EXTRA_CFLAGS = -D__IN_RTAI__ $(shell rtai-config --module-cflags) -ggdb -march=pentium4 -DNODE_RG -DBIGPHYSAREA -DRTAI -DRTAI_ENABLED $(if $(IS_KERNEL_SUBVERSION_GREATER_THAN_20),-mregparm=3 -fno-stack-protector,) -D__KERNEL__ -DMODULE -D_LOOSE_KERNEL_NAMES -DWIDENS_DLC -I/lib/modules/$(shell uname -r)/build/include -I/lib/modules/$(shell uname -r)/build/include/asm/mach-default -include /lib/modules/$(shell uname -r)/build/include/linux/autoconf.h $(if $(IS_RTAI_SUBVERSION_LESS_THAN_FIVE),-DRTAI_ISNT_POSIX,)
+endif
+
+
+GCCVERSION = $(shell gcc --version | grep ^gcc | sed 's/^.* //g')
+ifeq "$(GCCVERSION)"  "4.4.3"
+    EXTRA_CFLAGS += -Wno-packed-bitfield-compat
+endif
+ifeq "$(GCCVERSION)" "4.5.2"
+    EXTRA_CFLAGS += -Wno-packed-bitfield-compat
+endif
+
+EXTRA_CFLAGS +=   -DKERNEL$(KERNEL_MAIN_TYPE)
+#-DOLD_REMAP
+
+# Old for 2.6.20
+#EXTRA_CFLAGS += -Wall -Wstrict-prototypes -fno-common -fno-strict-aliasing -pipe -fno-strength-reduce -mmmx -msse -msse2 -falign-loops=2 -falign-jumps=2 -falign-functions=2 -DCPU=686 -DMODULE  -D_LOOSE_KERNEL_NAMES -O2
+
+#EXTRA_CFLAGS += -Wall -Wstrict-prototypes -fno-common -fno-strict-aliasing -fno-unit-at-a-time -march=i686 -fno-strength-reduce  -fno-exceptions -pipe -mmmx -msse -msse2 -falign-loops=2 -falign-jumps=2 -falign-functions=2 -fno-strict-aliasing -fno-common -ffreestanding -fomit-frame-pointer -nostdinc -DMODULE  -D_LOOSE_KERNEL_NAMES -O2
+
+#EXTRA_CFLAGS += -Wstrict-prototypes -fno-common -fno-strict-aliasing -pipe -mpreferred-stack-boundary=4 -freg-struct-return -ffreestanding -maccumulate-outgoing-args -funroll-loops -march=i686 -fomit-frame-pointer -nostdinc -O2
+
+EXTRA_CFLAGS += -fno-common -fno-strict-aliasing -pipe -mpreferred-stack-boundary=4 -freg-struct-return -ffreestanding -maccumulate-outgoing-args -funroll-loops -march=i686 -nostdinc -O2 
+
+SSE3PROC = $(shell echo `grep ssse3 /proc/cpuinfo`) 
+#SSE4PROC = $(shell echo `grep sse4 /proc/cpuinfo`) 
+CPUFLAGS = -mmmx -msse -msse2 -m32 
+CPUFLAGS += $(shell if [ -z $(SSE3PROC)]; then echo "" ; else echo "-mssse3"; fi)
+#CPUFLAGS += $(shell if [ -z $(SSE4PROC)]; then echo "" ; else echo "-msse4"; fi)
+
+EXTRA_CFLAGS += $(CPUFLAGS)
+
+EXTRA_CFLAGS += -DMAC_CONTEXT -DPHY_CONTEXT -DPC_TARGET -DPC_DSP 
+
+ifdef DEBUG_PHY
+EXTRA_CFLAGS += -DDEBUG_PHY
+endif
+
+ifdef NO_CARD_TEST
+EXTRA_CFLAGS += -DNOCARD_TEST
+endif
+
+ifeq ($(EMOS),1)
+EXTRA_CFLAGS += -DEMOS 
+endif
+
+ifdef DUALSTREAM
+EXTRA_CFLAGS += -DDUALSTREAM
+endif
+
+ifdef BIT8_TX
+EXTRA_CFLAGS += -DBIT8_TX
+endif
+
+ifdef IDROMEL_RF 
+EXTRA_CFLAGS += -DNB_ANTENNAS_RX=2 -DNB_ANTENNAS_TX=1 -DNB_ANTENNAS_TXRX=2
+else
+EXTRA_CFLAGS += -DNB_ANTENNAS_RX=2 -DNB_ANTENNAS_TX=2 -DNB_ANTENNAS_TXRX=2 
+endif
+
+ifdef CBMIMO1
+EXTRA_CFLAGS += -DCBMIMO1
+endif
+
+ifeq ($(FIRMWARE2010),1)
+EXTRA_CFLAGS += -DIFFT_FPGA -DIFFT_FPGA_UE -DOFDMA_ULSCH -DHW_PREFIX_REMOVAL
+else
+EXTRA_CFLAGS += -DFW2011 -DPUCCH
+endif
+
+ifeq ($(OPENAIR_LTE),1)
+EXTRA_CFLAGS += -DOPENAIR_LTE 
+endif
+
+ifeq ($(OPENAIR1),1)
+EXTRA_CFLAGS += -DDLSCH_THREAD -DOPENAIR1
+endif
+
+ifeq ($(OPENAIR2),1)
+EXTRA_CFLAGS += -DOPENAIR2
+endif
+
+EXTRA_CFLAGS += -I/usr/include -I/usr/realtime/include 
+EXTRA_CFLAGS += -I$(OPENAIR1_DIR) 
+EXTRA_CFLAGS += -DEMIT_ASN_DEBUG=0
+
+include $(OPENAIR1_DIR)/SCHED/Makefile.inc
+include $(OPENAIR1_DIR)/PHY/Makefile.inc
+
+#ifeq ($(OPENAIR2),1)
+include $(OPENAIR2_DIR)/LAYER2/Makefile.inc
+#else
+include $(OPENAIR1_DIR)/MAC_INTERFACE/Makefile.inc
+#endif
+EXTRA_CFLAGS += $(subst $(OPENAIR2_TOP), $(OPENAIR2_DIR), $(L2_incl))
+
+include $(OPENAIR2_DIR)/UTIL/Makefile.inc
+EXTRA_CFLAGS += $(subst $(OPENAIR2_TOP), $(OPENAIR2_DIR), $(UTIL_incl))
+
+ccflags-y  += $(EXTRA_CFLAGS)
+EXTRA_CFLAGS= ""
+
+include $(OPENAIR2_DIR)/RRC/LITE/MESSAGES/Makefile.inc
+
+
+obj-m += openair_rf.o
+
+# Device driver
+openair_rf-objs += $(OPENAIR1_TOP)/ARCH/COMMON/bigphys.o
+openair_rf-objs += $(OPENAIR1_TOP)/ARCH/COMMON/reserve_mem.o
+#openair_rf-objs += $(OPENAIR1_TOP)/ARCH/COMMON/amp.o
+
+openair_rf-objs += cbmimo1_device.o cbmimo1_rf_cntl.o cbmimo1_init.o cbmimo1_dma.o cbmimo1_get_frame.o cbmimo1_fileops.o fifo_printf.o cbmimo1_proc.o exmimo_fw.o
+#openair_rf-objs += cbmimo1_generate_ofdm.o cbmimo1_generate_fs4.o  
+
+# MAC Interface
+#openair_rf-objs += $(OPENAIR1_TOP)/MAC_INTERFACE/register.o