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openairinterface5g/openair2/RRC/CELLULAR/rrc_rg_L2_interface.c
T
Cedric Roux 56c66c09aa - 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
2013-06-25 09:05:02 +00:00

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17 KiB
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/***************************************************************************
rrc_rg_L2_interface.c -
-------------------
begin : Sept 9, 2008
copyright : (C) 2008, 2010 by Eurecom
created by : michelle.wetterwald@eurecom.fr
description
**************************************************************************
Entry point for L2 interfaces
***************************************************************************/
/********************
//OpenAir definitions
********************/
#include "LAYER2/MAC/extern.h"
#include "COMMON/openair_defs.h"
#include "RRC/L2_INTERFACE/openair_rrc_L2_interface.h"
#include "LAYER2/RLC/rlc.h"
#include "COMMON/mac_rrc_primitives.h"
#include "UTIL/MEM/mem_block.h"
//#include "SIMULATION/simulation_defs.h"
//extern EMULATION_VARS *Emul_vars;
//extern CH_MAC_INST *CH_mac_inst;
//extern UE_MAC_INST *UE_mac_inst;
/********************
// RRC definitions
********************/
#include "rrc_rg_vars.h"
//-----------------------------------------------------------------------------
#include "rrc_L2_proto.h"
#include "rrc_proto_bch.h"
//-----------------------------------------------------------------------------
extern LCHAN_DESC BCCH_LCHAN_DESC,CCCH_LCHAN_DESC, DCCH_LCHAN_DESC, DTCH_DL_LCHAN_DESC,DTCH_UL_LCHAN_DESC;
extern rlc_info_t Rlc_info_um, Rlc_info_am_config;
//-----------------------------------------------------------------------------
s8 rrc_L2_data_req_rx (unsigned char Mod_id, unsigned short Srb_id, unsigned char Nb_tb,char *Buffer,u8 CH_index){
//-----------------------------------------------------------------------------
unsigned char br_size=0;
//#ifdef DEBUG_RRC_BROADCAST
if ( Mac_rlc_xface->Is_cluster_head[Mod_id]){
if ((Srb_id & RAB_OFFSET) == BCCH){
#ifdef DEBUG_RRC_BROADCAST_DETAILS
msg ("\n[RRC CELL][L2_INTF] rrc_L2_data_req_rx - begin - Fill BCCH\n");
//msg ("Received parameters Mod_id %d, Srb_id %d, nb_tb %d, CH_index %d\n",Mod_id, Srb_id,Nb_tb,CH_index);
#endif
br_size = rrc_broadcast_tx(Buffer);
#ifdef DEBUG_RRC_BROADCAST_DETAILS
msg ("[RRC CELL][L2_INTF] rrc_L2_data_req_rx - end BCCH, br_size %d\n",br_size);
#endif
//return br_size;
}
else
if( ((Srb_id & RAB_OFFSET ) == CCCH)&& (protocol_bs->rrc.ccch_buffer_size > 0)){
//if( protocol_ms->rrc.ccch_buffer_size > 0) {
#ifdef DEBUG_RRC_STATE
msg ("\n[RRC CELL][L2_INTF] rrc_L2_data_req_rx - begin - Fill CCCH\n");
msg ("Received parameters Mod_id %d, Srb_id %d, nb_tb %d, CH_index %d\n",Mod_id, Srb_id,Nb_tb,CH_index);
msg ("CCCH buffer size %d\n",protocol_bs->rrc.ccch_buffer_size);
#endif
memcpy(&Buffer[0],&protocol_bs->rrc.ccch_buffer[0],protocol_bs->rrc.ccch_buffer_size);
br_size = protocol_bs->rrc.ccch_buffer_size;
protocol_bs->rrc.ccch_buffer_size = 0;
//}
}
}
#ifdef DEBUG_RRC_BROADCAST_DETAILS
msg ("\n[RRC CELL][L2_INTF] rrc_L2_data_req_rx - end\n");
#endif
return br_size;
}
//-----------------------------------------------------------------------------
s8 rrc_L2_mac_data_ind_rx (u8 Mod_id, u16 Srb_id, char *Sdu, u16 Sdu_len, u8 eNB_index){
//-----------------------------------------------------------------------------
int rxStatus=0;
if((Srb_id & RAB_OFFSET) == BCCH){
#ifdef DEBUG_RRC_BROADCAST
msg ("\n[RRC CELL][L2_INTF] rrc_L2_mac_data_ind_rx - begin - BCCH RG => Xmit only in BCCH\n");
//msg ("Received parameters Mod_id %d, Srb_id %d, CH_index %d\n",Mod_id, Srb_id,CH_index);
#endif
#ifdef DEBUG_RRC_BROADCAST_DETAILS
msg ("\n[RRC CELL][L2_INTF] rrc_L2_mac_data_ind_rx - end\n");
#endif
}
else
if( (Srb_id & RAB_OFFSET ) == CCCH){
#ifdef DEBUG_RRC_STATE
msg ("\n[RRC CELL][L2_INTF] rrc_L2_mac_data_ind_rx - begin - CCCH\n");
msg ("Received parameters Mod_id %d, eNB_index %d, SDU length %d\n", Mod_id, eNB_index, Sdu_len);
#endif
if (Sdu_len >0){
//rrc_rg_rcve_ccch(char *Sdu, u16 Sdu_len);
rrc_rg_rcve_ccch(Mod_id, Sdu, Sdu_len);
}
}
else msg ("\n[RRC CELL][L2_INTF] rrc_L2_mac_data_ind_rx, Srb_id %d unexpected \n" , Srb_id);
return rxStatus;
}
//-----------------------------------------------------------------------------
void rrc_L2_rlc_data_ind_rx (unsigned char Mod_id, unsigned int Srb_id, unsigned int Sdu_size, unsigned char *Buffer){
//-----------------------------------------------------------------------------
#ifdef DEBUG_RRC_DETAILS_2
msg ("\n[RRC][L2_INTF] rrc_L2_rlc_data_ind_rx - begin\n");
#endif
//rrc_rg_test_rlc_intf_rcve (Buffer, Srb_id); // Dummy version
rrc_rg_receive_from_srb_rlc (Buffer, Srb_id, Sdu_size);
}
//-----------------------------------------------------------------------------
void rrc_L2_rlc_confirm_ind_rx (unsigned char Mod_id, unsigned int Srb_id, unsigned int mui){
//-----------------------------------------------------------------------------
#ifdef DEBUG_RRC_DETAILS_2
msg ("\n[RRC][L2_INTF] rrc_L2_rlc_confirm_ind_rx - begin\n");
#endif
//void* rrc_srb_confirm (u32 muiP, u8 rb_idP, u8 statusP);
rrc_rg_srb_confirm (mui, Srb_id, 0);
}
//-----------------------------------------------------------------------------
void rrc_L2_mac_meas_ind_rx (void){
//-----------------------------------------------------------------------------
#ifdef DEBUG_RRC_DETAILS
msg ("\n[RRC][L2_INTF] rrc_L2_mac_meas_ind_rx - begin\n");
#endif
}
//-----------------------------------------------------------------------------
void rrc_L2_def_meas_ind_rx (unsigned char Mod_id, unsigned char Idx2){
//-----------------------------------------------------------------------------
#ifdef DEBUG_RRC_DETAILS
msg ("\n[RRC][L2_INTF] rrc_L2_def_meas_ind_rx - begin\n");
#endif
}
//-----------------------------------------------------------------------------
void rrc_L2_sync_ind_rx (u8 Mod_id){
//-----------------------------------------------------------------------------
#ifdef DEBUG_RRC_DETAILS
msg ("\n[RRC][L2_INTF] rrc_L2_sync_ind_rx - begin\n");
#endif
}
//-----------------------------------------------------------------------------
void rrc_L2_out_sync_ind_rx (void){
//-----------------------------------------------------------------------------
#ifdef DEBUG_RRC_DETAILS
msg ("\n[RRC][L2_INTF] rrrc_L2_out_sync_ind_rx - begin\n");
#endif
}
//-----------------------------------------------------------------------------
int rrc_L2_get_rrc_status(u8 Mod_id,u8 eNB_flag,u8 index){
//-----------------------------------------------------------------------------
#ifdef DEBUG_RRC_DETAILS_2
msg ("\n[RRC][L2_INTF] rrc_L2_get_rrc_status - begin\n");
#endif
/*
if(eNB_flag == 1)
return(eNB_rrc_inst[Mod_id].Info.Status[index]);
else
return(UE_rrc_inst[Mod_id].Info[index].Status);
*/
return 0;
}
//-----------------------------------------------------------------------------
char rrc_L2_ue_init(u8 Mod_id, unsigned char eNB_index){
//-----------------------------------------------------------------------------
#ifdef DEBUG_RRC_DETAILS
msg ("\n[RRC][L2_INTF] rrc_L2_ue_init - begin\n");
#endif
rrc_rg_uelite_init(Mod_id, eNB_index);
return 0;
}
//-----------------------------------------------------------------------------
char rrc_L2_eNB_init(u8 Mod_id){
//-----------------------------------------------------------------------------
#ifdef DEBUG_RRC_DETAILS
msg ("\n[RRC][L2_INTF] rrc_L2_eNB_init - begin\n");
#endif
rrc_rg_init (Mod_id);
return 0;
}
//-----------------------------------------------------------------------------
// Out of openair_rrc_L2_interface.c
void openair_rrc_lite_top_init(void){
//-----------------------------------------------------------------------------
//#ifdef DEBUG_RRC_STATE
msg ("\n[RRC CELL] [L2_INTF] openair_rrc_lite_top_init - Empty function to keep compatibility with RRC LITE\n\n");
//#endif
}
//-----------------------------------------------------------------------------
RRC_status_t rrc_rx_tx(u8 Mod_id,u32 frame, u8 eNB_flag,u8 index){
//-----------------------------------------------------------------------------
#ifdef DEBUG_RRC_DETAILS
// msg ("\n[RRC][L2_INTF] rrc_rx_tx - begin %d \n", frame);
#endif
// call RRC only if new frame number
if (frame > protocol_bs->rrc.current_SFN){
protocol_bs->rrc.current_SFN = frame;
rrc_rg_main_scheduler(Mod_id, protocol_bs->rrc.current_SFN, 0, 0);
}
return 0;
}
/*------------------------------------------------------------------------------*/
// Dummy function - to keep compatibility with RRC LITE
char rrc_rg_uelite_init(u8 Mod_id, unsigned char eNB_index){
/*------------------------------------------------------------------------------*/
//#ifdef DEBUG_RRC_STATE
msg ("\n[RRC CELL] Called rrc_rg_uelite_init - Dummy function - to keep compatibility with RRC LITE\n\n");
//#endif
return 0;
}
/*------------------------------------------------------------------------------*/
// Send config to the MAC Layer
void rrc_init_mac_config(void){
/*------------------------------------------------------------------------------*/
//MAC_CONFIG_REQ Mac_config_req;
//int UE_index,Idx;
// The content of this function has been commented on 23/03/2012
// Rewritten on 29/01/2013
//printk("\n rrc_init_mac_config -- COMMENTED\n");
int Mod_id =0;
//#ifdef DEBUG_RRC_STATE
msg ("\n[RRC CELL] Called rrc_init_mac_config - Begin \n\n");
//#endif
rrc_rg_init_mac (Mod_id);
/*
UE_index=1;
// Configure BCCH
Mac_config_req.Lchan_type = BCCH;
memcpy(&Mac_config_req.Lchan_desc[0],(LCHAN_DESC*)&BCCH_LCHAN_DESC,LCHAN_DESC_SIZE); //0 rx, 1 tx
memcpy(&Mac_config_req.Lchan_desc[1],(LCHAN_DESC*)&BCCH_LCHAN_DESC,LCHAN_DESC_SIZE); //0 rx, 1 tx
Mac_config_req.UE_CH_index=0;
Mac_config_req.Lchan_id.Index=(0 << RAB_SHIFT2) + BCCH;
printk("Calling mac_config_req for BCCH\n");
Mac_rlc_xface->mac_config_req(0,ADD_LC,&Mac_config_req);
// Configure CCCH
Mac_config_req.Lchan_type = CCCH;
memcpy(&Mac_config_req.Lchan_desc[0],(LCHAN_DESC*)&CCCH_LCHAN_DESC,LCHAN_DESC_SIZE); //0 rx, 1 tx
memcpy(&Mac_config_req.Lchan_desc[1],(LCHAN_DESC*)&CCCH_LCHAN_DESC,LCHAN_DESC_SIZE); //0 rx, 1 tx
Mac_config_req.UE_CH_index=0;
Mac_config_req.Lchan_id.Index=(0 << RAB_SHIFT2) + CCCH;
printk("Calling mac_config_req for CCCH\n");
Mac_rlc_xface->mac_config_req(0,ADD_LC,&Mac_config_req);
// Configure DCCH (LTE ACCESS)
Mac_config_req.Lchan_type = DCCH;
Mac_config_req.UE_CH_index = UE_index;
memcpy(&Mac_config_req.Lchan_desc[0],(LCHAN_DESC*)&DCCH_LCHAN_DESC,LCHAN_DESC_SIZE); //0 rx, 1 tx
memcpy(&Mac_config_req.Lchan_desc[1],(LCHAN_DESC*)&DCCH_LCHAN_DESC,LCHAN_DESC_SIZE); //0 rx, 1 tx
Mac_config_req.Lchan_id.Index=(UE_index << RAB_SHIFT2) + DCCH;
Idx = Mac_rlc_xface->mac_config_req(0,ADD_LC,&Mac_config_req);
Mac_rlc_xface->rrc_rlc_config_req(0,ACTION_ADD,Idx,SIGNALLING_RADIO_BEARER,Rlc_info_um);
// Configure DTCH (SRB0)
Mac_config_req.Lchan_type = DTCH;
Mac_config_req.UE_CH_index = UE_index;
memcpy(&Mac_config_req.Lchan_desc[0],(LCHAN_DESC*)&DTCH_LCHAN_DESC,LCHAN_DESC_SIZE); //0 rx, 1 tx
memcpy(&Mac_config_req.Lchan_desc[1],(LCHAN_DESC*)&DTCH_LCHAN_DESC,LCHAN_DESC_SIZE); //0 rx, 1 tx
Mac_config_req.Lchan_id.Index=(UE_index << RAB_SHIFT2) + DTCH_BD + 1;
Idx = Mac_rlc_xface->mac_config_req(0,ADD_LC,&Mac_config_req);
Mac_rlc_xface->rrc_rlc_config_req(0,ACTION_ADD,Idx,SIGNALLING_RADIO_BEARER,Rlc_info_um);
// Configure DTCH (SRB1)
Mac_config_req.Lchan_type = DTCH;
Mac_config_req.UE_CH_index = UE_index;
memcpy(&Mac_config_req.Lchan_desc[0],(LCHAN_DESC*)&DTCH_LCHAN_DESC,LCHAN_DESC_SIZE); //0 rx, 1 tx
memcpy(&Mac_config_req.Lchan_desc[1],(LCHAN_DESC*)&DTCH_LCHAN_DESC,LCHAN_DESC_SIZE); //0 rx, 1 tx
Mac_config_req.Lchan_id.Index=(UE_index << RAB_SHIFT2) + DTCH_BD + 2;
Idx = Mac_rlc_xface->mac_config_req(0,ADD_LC,&Mac_config_req);
Mac_rlc_xface->rrc_rlc_config_req(0,ACTION_ADD,Idx,SIGNALLING_RADIO_BEARER,Rlc_info_um);
// Configure DTCH (SRB2)
Mac_config_req.Lchan_type = DTCH;
Mac_config_req.UE_CH_index = UE_index;
memcpy(&Mac_config_req.Lchan_desc[0],(LCHAN_DESC*)&DTCH_LCHAN_DESC,LCHAN_DESC_SIZE); //0 rx, 1 tx
memcpy(&Mac_config_req.Lchan_desc[1],(LCHAN_DESC*)&DTCH_LCHAN_DESC,LCHAN_DESC_SIZE); //0 rx, 1 tx
Mac_config_req.Lchan_id.Index=(UE_index << RAB_SHIFT2) + DTCH_BD + 3;
Idx = Mac_rlc_xface->mac_config_req(0,ADD_LC,&Mac_config_req);
Mac_rlc_xface->rrc_rlc_config_req(0,ACTION_ADD,Idx,SIGNALLING_RADIO_BEARER,Rlc_info_am);
// Configure DTCH (SRB3)
Mac_config_req.Lchan_type = DTCH;
Mac_config_req.UE_CH_index = UE_index;
memcpy(&Mac_config_req.Lchan_desc[0],(LCHAN_DESC*)&DTCH_LCHAN_DESC,LCHAN_DESC_SIZE); //0 rx, 1 tx
memcpy(&Mac_config_req.Lchan_desc[1],(LCHAN_DESC*)&DTCH_LCHAN_DESC,LCHAN_DESC_SIZE); //0 rx, 1 tx
Mac_config_req.Lchan_id.Index=(UE_index << RAB_SHIFT2) + DTCH_BD + 4;
Idx = Mac_rlc_xface->mac_config_req(0,ADD_LC,&Mac_config_req);
Mac_rlc_xface->rrc_rlc_config_req(0,ACTION_ADD,Idx,SIGNALLING_RADIO_BEARER,Rlc_info_am);
*/
}
/*------------------------------------------------------------------------------*/
// Send config to the MAC Layer
void rrc_init_mac_default_param(void){
/*------------------------------------------------------------------------------*/
// The following code has been commented on 23/03/2012
printk("\n rrc_init_mac_default_param -- WORK IN PROGRESS\n");
/*
BCCH_LCHAN_DESC.transport_block_size=BCCH_PAYLOAD_SIZE_MAX;
BCCH_LCHAN_DESC.max_transport_blocks=15;//MAX 16 (4bits for Seq_id)
CCCH_LCHAN_DESC.transport_block_size=CCCH_PAYLOAD_SIZE_MAX;
CCCH_LCHAN_DESC.max_transport_blocks=15;//MAX 16 (4bits for Seq_id)
// BCCH_LCHAN_DESC.transport_block_size=30;//+CH_BCCH_HEADER_SIZE;
// BCCH_LCHAN_DESC.max_transport_blocks=15;//MAX 16 (4bits for Seq_id)
// CCCH_LCHAN_DESC.transport_block_size=30;//+CH_CCCH_HEADER_SIZE;
// CCCH_LCHAN_DESC.max_transport_blocks=15;//MAX 16 (4bits for Seq_id)
DCCH_LCHAN_DESC.transport_block_size=40;//+CH_BCCH_HEADER_SIZE;
DCCH_LCHAN_DESC.max_transport_blocks=20;
DTCH_LCHAN_DESC.transport_block_size=40;//120;//200;//+CH_BCCH_HEADER_SIZE;
DTCH_LCHAN_DESC.max_transport_blocks=20;
*/
// Test config on 02/04/2012
BCCH_LCHAN_DESC.transport_block_size=BCCH_PAYLOAD_SIZE_MAX;
BCCH_LCHAN_DESC.max_transport_blocks=15;//MAX 16 (4bits for Seq_id)
DCCH_LCHAN_DESC.transport_block_size=4;
DCCH_LCHAN_DESC.max_transport_blocks=16;
DCCH_LCHAN_DESC.Delay_class=1;
DTCH_DL_LCHAN_DESC.transport_block_size=52;
DTCH_DL_LCHAN_DESC.max_transport_blocks=20;
DTCH_DL_LCHAN_DESC.Delay_class=1;
DTCH_UL_LCHAN_DESC.transport_block_size=52;
DTCH_UL_LCHAN_DESC.max_transport_blocks=20;
DTCH_UL_LCHAN_DESC.Delay_class=1;
// Config copied from RRC LITE on 02/04/2012
Rlc_info_um.rlc_mode=RLC_UM;
Rlc_info_um.rlc.rlc_um_info.timer_reordering=0;
Rlc_info_um.rlc.rlc_um_info.sn_field_length=10;
Rlc_info_um.rlc.rlc_um_info.is_mXch=0;
//Rlc_info_um.rlc.rlc_um_info.sdu_discard_mode=16;
Rlc_info_am_config.rlc_mode=RLC_AM;
Rlc_info_am_config.rlc.rlc_am_info.max_retx_threshold = 255;
Rlc_info_am_config.rlc.rlc_am_info.poll_pdu = 8;
Rlc_info_am_config.rlc.rlc_am_info.poll_byte = 1000;
Rlc_info_am_config.rlc.rlc_am_info.t_poll_retransmit = 15;
Rlc_info_am_config.rlc.rlc_am_info.t_reordering = 5000;
Rlc_info_am_config.rlc.rlc_am_info.t_status_prohibit = 10;
}
/*------------------------------------------------------------------------------*/
//Entry function for RRC init - Copied from RRC MESH (MW 09/09/2008)
int rrc_init_global_param(void){
/*------------------------------------------------------------------------------*/
// Nb_mod=0;
//#ifdef DEBUG_RRC_STATE
msg ("\n[RRC CELL] Called rrc_init_global_param - Begin \n\n");
//#endif
/*
#ifdef USER_MODE
Rrc_xface = (RRC_XFACE*)malloc16(sizeof(RRC_XFACE));
#endif
Rrc_xface->openair_rrc_top_init = rrc_rg_toplite_init;
Rrc_xface->openair_rrc_eNB_init = rrc_rg_init;
Rrc_xface->openair_rrc_UE_init = rrc_rg_uelite_init;
Rrc_xface->mac_rrc_data_ind = mac_rrc_data_ind;
Rrc_xface->mac_rrc_data_req = mac_rrc_data_req;
Rrc_xface->rrc_data_indP = rlcrrc_data_ind;
Rrc_xface->rrc_rx_tx = rrc_rg_main_scheduler;
Rrc_xface->mac_rrc_meas_ind = mac_rrc_meas_ind;
Rrc_xface->def_meas_ind = rrc_L2_def_meas_ind_rx;
Mac_rlc_xface->mac_out_of_sync_ind = mac_out_of_sync_ind;
Rrc_xface->get_rrc_status= rrc_L2_get_rrc_status;
printk("[RRC]INIT_GLOBAL_PARAM: Mac_rlc_xface %p, rrc_rlc_register %p,rlcrrc_data_ind %p\n",Mac_rlc_xface,Mac_rlc_xface->rrc_rlc_register_rrc,rlcrrc_data_ind);
if (Mac_rlc_xface==NULL || Mac_rlc_xface->rrc_rlc_register_rrc==NULL||rlcrrc_data_ind==NULL)
return -1;
//register with rlc -1st function= data_ind/srb_rx, 2nd function = srb_confirm
Mac_rlc_xface->rrc_rlc_register_rrc(rlcrrc_data_ind , rrc_L2_rlc_confirm_ind_rx);
*/
//register with rlc -1st function= data_ind/srb_rx, 2nd function = srb_confirm
printk("[RRC]INIT_GLOBAL_PARAM: rrc_rlc_register_rrc %p,rlcrrc_data_ind %p, rrc_L2_rlc_confirm_ind_rx %p\n", rrc_rlc_register_rrc, rlcrrc_data_ind, rrc_L2_rlc_confirm_ind_rx );
if( rrc_rlc_register_rrc==NULL||rlcrrc_data_ind==NULL|| rrc_L2_rlc_confirm_ind_rx==NULL)
return -1;
rrc_rlc_register_rrc(rlcrrc_data_ind , rrc_L2_rlc_confirm_ind_rx);
rrc_init_mac_default_param();
return 0;
}
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