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openairinterface5g/openair2/LAYER2/RLC/TM/rlc_tm_control_primitives.c
T
ghaddab c23783c702 License corrected 
git-svn-id: http://svn.eurecom.fr/openair4G/trunk@5714 818b1a75-f10b-46b9-bf7c-635c3b92a50f
2014-08-14 07:26:42 +00:00

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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@eurecom.fr
Address : Eurecom, Campus SophiaTech, 450 Route des Chappes, CS 50193 - 06904 Biot Sophia Antipolis cedex, FRANCE
*******************************************************************************/
/***************************************************************************
rlc_tm_control_primitives.c -
-------------------
AUTHOR : Lionel GAUTHIER
COMPANY : EURECOM
EMAIL : Lionel.Gauthier@eurecom.fr
***************************************************************************/
//#include "rtos_header.h"
#include "platform_types.h"
//-----------------------------------------------------------------------------
#include "rlc_tm_entity.h"
#include "rlc_primitives.h"
#include "rlc_tm_fsm_proto_extern.h"
#include "rlc_tm_segment_proto_extern.h"
#include "rlc_tm_proto_extern.h"
#include "list.h"
#include "mem_block.h"
#include "rrm_config_structs.h"
//-----------------------------------------------------------------------------
void config_req_rlc_tm (struct rlc_tm_entity *rlcP, module_id_t module_idP, rlc_tm_info_t * config_tmP, rb_id_t rb_idP, rb_type_t rb_typeP);
void send_rlc_tm_control_primitive (struct rlc_tm_entity *rlcP, module_id_t module_idP, mem_block_t *cprimitiveP);
void init_rlc_tm (struct rlc_tm_entity *rlcP);
void rlc_tm_reset_state_variables (struct rlc_tm_entity *rlcP);
void rlc_tm_free_all_resources (struct rlc_tm_entity *rlcP);
void rlc_tm_set_configured_parameters (struct rlc_tm_entity *rlcP, mem_block_t *cprimitiveP);
//-----------------------------------------------------------------------------
void
config_req_rlc_tm (struct rlc_tm_entity *rlcP, module_id_t module_idP, rlc_tm_info_t * config_tmP, rb_id_t rb_idP, rb_type_t rb_typeP)
{
//-----------------------------------------------------------------------------
mem_block_t *mb;
mb = get_free_mem_block (sizeof (struct crlc_primitive));
((struct crlc_primitive *) mb->data)->type = CRLC_CONFIG_REQ;
((struct crlc_primitive *) mb->data)->primitive.c_config_req.parameters.tm_parameters.e_r = RLC_E_R_ESTABLISHMENT;
((struct crlc_primitive *) mb->data)->primitive.c_config_req.parameters.tm_parameters.timer_discard = config_tmP->timer_discard;
((struct crlc_primitive *) mb->data)->primitive.c_config_req.parameters.tm_parameters.sdu_discard_mode = config_tmP->sdu_discard_mode;
#warning frame_tick_milliseconds
#ifdef NODE_RG
//((struct crlc_primitive *) mb->data)->primitive.c_config_req.parameters.tm_parameters.frame_tick_milliseconds = &protocol_bs->frame_tick_milliseconds;
#else
//((struct crlc_primitive *) mb->data)->primitive.c_config_req.parameters.tm_parameters.frame_tick_milliseconds = &protocol_ms->frame_tick_milliseconds;
#endif
((struct crlc_primitive *) mb->data)->primitive.c_config_req.parameters.tm_parameters.segmentation_indication = config_tmP->segmentation_indication;
((struct crlc_primitive *) mb->data)->primitive.c_config_req.parameters.tm_parameters.delivery_of_erroneous_sdu = config_tmP->delivery_of_erroneous_sdu;
((struct crlc_primitive *) mb->data)->primitive.c_config_req.parameters.tm_parameters.size_input_sdus_buffer = 128;
((struct crlc_primitive *) mb->data)->primitive.c_config_req.parameters.tm_parameters.rb_id = rb_idP;
send_rlc_tm_control_primitive (rlcP, module_idP, mb);
if (rb_typeP != SIGNALLING_RADIO_BEARER) {
rlcP->data_plane = 1;
} else {
rlcP->data_plane = 0;
}
}
//-----------------------------------------------------------------------------
void
send_rlc_tm_control_primitive (struct rlc_tm_entity *rlcP, module_id_t module_idP, mem_block_t *cprimitiveP)
{
//-----------------------------------------------------------------------------
switch (((struct crlc_primitive *) cprimitiveP->data)->type) {
case CRLC_CONFIG_REQ:
rlcP->module_id = module_idP;
switch (((struct crlc_primitive *) cprimitiveP->data)->primitive.c_config_req.parameters.tm_parameters.e_r) {
case RLC_E_R_ESTABLISHMENT:
if (rlc_tm_fsm_notify_event (rlcP, RLC_TM_RECEIVE_CRLC_CONFIG_REQ_ENTER_DATA_TRANSFER_READY_STATE_EVENT)) {
rlc_tm_set_configured_parameters (rlcP, cprimitiveP); // the order of the calling of procedures...
rlc_tm_reset_state_variables (rlcP); // ...must not ...
}
break;
case RLC_E_R_RELEASE:
if (rlc_tm_fsm_notify_event (rlcP, RLC_TM_RECEIVE_CRLC_CONFIG_REQ_ENTER_NULL_STATE_EVENT)) {
rlc_tm_free_all_resources (rlcP);
}
break;
default:
msg ("[RLC_TM][ERROR] send_rlc_tm_control_primitive(CRLC_CONFIG_REQ) unknown parameter E_R\n");
}
break;
default:
msg ("[RLC_TM %p][ERROR] send_rlc_tm_control_primitive(UNKNOWN CPRIMITIVE)\n", rlcP);
}
free_mem_block (cprimitiveP);
}
//-----------------------------------------------------------------------------
void
init_rlc_tm (struct rlc_tm_entity *rlcP)
{
//-----------------------------------------------------------------------------
memset (rlcP, 0, sizeof (struct rlc_tm_entity));
list_init (&rlcP->pdus_to_mac_layer, NULL);
list_init (&rlcP->pdus_from_mac_layer, NULL);
rlcP->protocol_state = RLC_NULL_STATE;
rlcP->nb_sdu = 0;
rlcP->next_sdu_index = 0;
rlcP->current_sdu_index = 0;
}
//-----------------------------------------------------------------------------
void
rlc_tm_reset_state_variables (struct rlc_tm_entity *rlcP)
{
//-----------------------------------------------------------------------------
rlcP->output_sdu_size_to_write = 0;
rlcP->buffer_occupancy = 0;
rlcP->nb_sdu = 0;
rlcP->next_sdu_index = 0;
rlcP->current_sdu_index = 0;
rlcP->last_tti = 0xFFFFFFFF;
}
//-----------------------------------------------------------------------------
void
rlc_tm_free_all_resources (struct rlc_tm_entity *rlcP)
{
//-----------------------------------------------------------------------------
int index;
list_free (&rlcP->pdus_to_mac_layer);
list_free (&rlcP->pdus_from_mac_layer);
if (rlcP->input_sdus_alloc) {
for (index = 0; index < rlcP->size_input_sdus_buffer; index++) {
if ((rlcP->input_sdus[index])) {
free_mem_block (rlcP->input_sdus[index]);
}
}
free_mem_block (rlcP->input_sdus_alloc);
rlcP->input_sdus_alloc = NULL;
}
if ((rlcP->output_sdu_in_construction)) {
free_mem_block (rlcP->output_sdu_in_construction);
}
}
//-----------------------------------------------------------------------------
void
rlc_tm_set_configured_parameters (struct rlc_tm_entity *rlcP, mem_block_t *cprimitiveP)
{
//-----------------------------------------------------------------------------
// timers
rlcP->timer_discard_init = ((struct crlc_primitive *) cprimitiveP->data)->primitive.c_config_req.parameters.tm_parameters.timer_discard;
// protocol_parameters
rlcP->sdu_discard_mode = ((struct crlc_primitive *) cprimitiveP->data)->primitive.c_config_req.parameters.tm_parameters.sdu_discard_mode;
rlcP->segmentation_indication = ((struct crlc_primitive *) cprimitiveP->data)->primitive.c_config_req.parameters.tm_parameters.segmentation_indication;
rlcP->delivery_of_erroneous_sdu = ((struct crlc_primitive *) cprimitiveP->data)->primitive.c_config_req.parameters.tm_parameters.delivery_of_erroneous_sdu;
// SPARE : not 3GPP
rlcP->frame_tick_milliseconds = ((struct crlc_primitive *) cprimitiveP->data)->primitive.c_config_req.parameters.tm_parameters.frame_tick_milliseconds;
rlcP->size_input_sdus_buffer = ((struct crlc_primitive *) cprimitiveP->data)->primitive.c_config_req.parameters.tm_parameters.size_input_sdus_buffer;
rlcP->rb_id = ((struct crlc_primitive *) cprimitiveP->data)->primitive.c_config_req.parameters.tm_parameters.rb_id;
if ((rlcP->input_sdus_alloc == NULL) && (rlcP->size_input_sdus_buffer > 0)) {
rlcP->input_sdus_alloc = get_free_mem_block (rlcP->size_input_sdus_buffer * sizeof (void *));
rlcP->input_sdus = (mem_block_t **) (rlcP->input_sdus_alloc->data);
memset (rlcP->input_sdus, 0, rlcP->size_input_sdus_buffer * sizeof (void *));
}
if (rlcP->segmentation_indication == RLC_TM_SEGMENTATION_ALLOWED) {
rlcP->segmentation = rlc_tm_segment;
rlcP->rx = rlc_tm_rx_segment;
} else {
rlcP->segmentation = rlc_tm_no_segment;
rlcP->rx = rlc_tm_rx_no_segment;
}
}
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