/*******************************************************************************

Eurecom OpenAirInterface 2
Copyright(c) 1999 - 2010 Eurecom

This program is free software; you can redistribute it and/or modify it
under the terms and conditions of the GNU General Public License,
version 2, as published by the Free Software Foundation.

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the file called "COPYING".

Contact Information
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*******************************************************************************/
/*! \file rlc.h
* \brief This file, and only this file must be included by external code that interact with RLC layer.
* \author GAUTHIER Lionel
* \date 2010-2011
* \version
* \note
* \bug
* \warning
*/
/** @defgroup _rlc_impl_ RLC Layer Reference Implementation
* @ingroup _ref_implementation_
* @{
*/
#ifndef __RLC_H__
#    define __RLC_H__

#    include "platform_types.h"
#    include "platform_constants.h"
#    include "rlc_am.h"
#    include "rlc_um.h"
#    include "rlc_tm.h"
#    include "rlc_am_structs.h"
#    include "rlc_tm_structs.h"
#    include "rlc_um_structs.h"
#    include "asn1_constants.h"
#    include "UTIL/LOG/log.h"
#    include "mem_block.h"
#    include "PHY/defs.h"
#    include "RLC-Config.h"
#    include "DRB-ToAddMod.h"
#    include "DRB-ToAddModList.h"
#    include "SRB-ToAddMod.h"
#    include "SRB-ToAddModList.h"
#ifdef Rel10
#include "PMCH-InfoList-r9.h"
#endif

//-----------------------------------------------------------------------------
#    ifdef RLC_MAC_C
#        define private_rlc_mac(x) x
#        define public_rlc_mac(x) x
#    else
#        define private_rlc_mac(x)
#        define public_rlc_mac(x) extern x
#    endif

#    ifdef RLC_MPLS_C
#        define private_rlc_mpls(x) x
#        define public_rlc_mpls(x) x
#    else
#        define private_rlc_mpls(x)
#        define public_rlc_mpls(x) extern x
#    endif

#    ifdef RLC_RRC_C
#        define private_rlc_rrc(x) x
#        define public_rlc_rrc(x) x
#    else
#        define private_rlc_rrc(x)
#        define public_rlc_rrc(x) extern x
#    endif

#    ifdef RLC_C
#        define private_rlc(x) x
#        define protected_rlc(x) x
#        define public_rlc(x) x
#    else
#        define private_rlc(x)
#        if defined(RLC_MAC_C) || defined(RLC_MPLS_C) || defined(RLC_RRC_C) || defined(RLC_AM_C) || defined(RLC_TM_C) || defined(RLC_UM_C) || defined (PDCP_C)
#            define protected_rlc(x) extern x
#        else
#            define protected_rlc(x)
#        endif
#        define public_rlc(x) extern x
#    endif

//-----------------------------------------------------------------------------
#define  RLC_OP_STATUS_OK                1
#define  RLC_OP_STATUS_BAD_PARAMETER     22
#define  RLC_OP_STATUS_INTERNAL_ERROR    2
#define  RLC_OP_STATUS_OUT_OF_RESSOURCES 3

#define  RLC_SDU_CONFIRM_YES   1
#define  RLC_SDU_CONFIRM_NO    0

#define  RLC_MUI_UNDEFINED     0


/*! \struct  rlc_info_t
* \brief Structure containing RLC protocol configuration parameters.
*/
typedef volatile struct {
  rlc_mode_t             rlc_mode;
  union {
      rlc_am_info_t              rlc_am_info; /*!< \sa rlc_am.h. */
      rlc_tm_info_t              rlc_tm_info; /*!< \sa rlc_tm.h. */
      rlc_um_info_t              rlc_um_info; /*!< \sa rlc_um.h. */
  }rlc;
} rlc_info_t;

/*! \struct  mac_rlc_status_resp_t
* \brief Primitive exchanged between RLC and MAC informing about the buffer occupancy of the RLC protocol instance.
*/
typedef  struct {
    u32_t                        bytes_in_buffer; /*!< \brief Bytes buffered in RLC protocol instance. */
    u32_t                        pdus_in_buffer;  /*!< \brief Number of PDUs buffered in RLC protocol instance (OBSOLETE). */
    u32_t                        head_sdu_creation_time;           /*!< \brief Head SDU creation time. */
    u32_t                        head_sdu_remaining_size_to_send;  /*!< \brief remaining size of sdu: could be the total size or the remaining size of already segmented sdu */
    u32_t  			  head_sdu_is_segmented;	    /*!< \brief 0 if head SDU has not been segmented, 1 if already segmeneted */	
} mac_rlc_status_resp_t;


/*! \struct  mac_rlc_max_rx_header_size_t
* \brief Usefull only for debug scenario where we connect 2 RLC protocol instances without the help of the MAC .
*/
typedef struct {
  union {
    struct rlc_am_rx_pdu_management dummy1;
    struct rlc_tm_rx_pdu_management dummy2;
    //struct rlc_um_rx_pdu_management dummy3;
    struct mac_tb_ind dummy4;
    struct mac_rx_tb_management dummy5;
  } dummy;
} mac_rlc_max_rx_header_size_t;

//-----------------------------------------------------------------------------
//   PRIVATE INTERNALS OF RLC
//-----------------------------------------------------------------------------
#define  RLC_MAX_NUM_INSTANCES_RLC_AM  ((maxDRB * MAX_MOBILES_PER_RG)/2)
#ifdef Rel10
#define  RLC_MAX_NUM_INSTANCES_RLC_UM  ((maxDRB * MAX_MOBILES_PER_RG)/2 + maxSessionPerPMCH * maxServiceCount)
#else
#define  RLC_MAX_NUM_INSTANCES_RLC_UM  ((maxDRB * MAX_MOBILES_PER_RG)/2)
#endif
#define  RLC_MAX_NUM_INSTANCES_RLC_TM  (MAX_MOBILES_PER_RG)

#ifdef Rel10
#define  RLC_MAX_RB  ((maxDRB + 3) * MAX_MOBILES_PER_RG + maxSessionPerPMCH * maxServiceCount)
#else
#define  RLC_MAX_RB  ((maxDRB + 3)* MAX_MOBILES_PER_RG)
#endif

#ifdef Rel10
#define  RLC_MAX_LC  ((max_val_DRB_Identity+1) * MAX_MOBILES_PER_RG + maxSessionPerPMCH * maxServiceCount)
#else
#define  RLC_MAX_LC  ((max_val_DRB_Identity+1)* MAX_MOBILES_PER_RG)
#endif

protected_rlc(void            (*rlc_rrc_data_ind)  (u8_t, u8_t, u32_t, u8_t, rb_id_t , sdu_size_t , u8_t* );)
protected_rlc(void            (*rlc_rrc_data_conf) (module_id_t , rb_id_t , mui_t, rlc_tx_status_t );)
typedef void (rrc_data_ind_cb_t)(u8_t eNB_id, u8_t UE_id, u32_t frame, u8_t eNB_flag, rb_id_t rb_idP, sdu_size_t sdu_sizeP, u8_t* sduP);
typedef void (rrc_data_conf_cb_t)(module_id_t module_idP, rb_id_t rb_idP, mui_t muiP, rlc_tx_status_t statusP);

/*! \struct  rlc_pointer_t
* \brief Structure helping finding the right RLC protocol instance in a rlc_t structure.
*/
typedef struct rlc_pointer_t {
    rlc_mode_t rlc_type;    /*!< \brief Is RLC protocol instance is AM, UM or TM. */
    int        rlc_index;   /*!< \brief Index of RLC protocol instance in rlc_t/m_rlc_Xm_array[]. */
} rlc_pointer_t;

/*! \struct  rlc_t
* \brief Structure to be instanciated to allocate memory for RLC protocol instances.
*/
typedef struct rlc_t {
    //int                  m_mbms_rlc_pointer[maxSessionPerPMCH][maxServiceCount];                              /*!< \brief Link between (service id, session id) and (implicit) RLC UM protocol instance. */
    signed long int      m_lcid2rbid[RLC_MAX_LC];              /*!< \brief Pairing logical channel identifier with radio bearer identifer. */
    rlc_pointer_t        m_rlc_pointer[RLC_MAX_RB];                        /*!< \brief Link between radio bearer ID and RLC protocol instance. */
    rlc_am_entity_t      m_rlc_am_array[RLC_MAX_NUM_INSTANCES_RLC_AM];     /*!< \brief RLC AM protocol instances. */
    rlc_um_entity_t      m_rlc_um_array[RLC_MAX_NUM_INSTANCES_RLC_UM];     /*!< \brief RLC UM protocol instances. */
    rlc_tm_entity_t      m_rlc_tm_array[RLC_MAX_NUM_INSTANCES_RLC_TM];     /*!< \brief RLC TM protocol instances. */
    char                 m_mscgen_trace[260];
    unsigned char        m_mscgen_trace_length;
}rlc_t;

// RK-LG was protected, public for debug
/*! \var rlc_t rlc[MAX_MODULES]
\brief Global var for RLC layer, allocate memory for RLC protocol instances.
*/
public_rlc(rlc_t rlc[MAX_MODULES];)

/*! \fn tbs_size_t mac_rlc_serialize_tb (char* bufferP, list_t transport_blocksP)
* \brief  Serialize a list of transport blocks coming from RLC in order to be processed by MAC.
* \param[in]  bufferP                 Memory area where the transport blocks have to be serialized.
* \param[in]  transport_blocksP       List of transport blocks.
* \return     The amount of bytes that have been written due to serialization.
*/
private_rlc_mac(tbs_size_t            mac_rlc_serialize_tb   (char*, list_t);)

/*! \fn struct mac_data_ind mac_rlc_deserialize_tb (char* bufferP, tb_size_t tb_sizeP, num_tb_t num_tbP, crc_t *crcsP)
* \brief  Serialize a list of transport blocks coming from RLC in order to be processed by MAC.
* \param[in]  bufferP       Memory area where the transport blocks are serialized.
* \param[in]  tb_sizeP      Size of transport blocks.
* \param[in]  num_tbP       Number of transport blocks.
* \param[in]  crcsP         Array of CRC for each transport block.
* \return     A mac_data_ind structure containing a list of transport blocks.
*/
private_rlc_mac(struct mac_data_ind   mac_rlc_deserialize_tb (char*, tb_size_t, num_tb_t, crc_t *);)


//-----------------------------------------------------------------------------
//   PUBLIC INTERFACE WITH RRC
//-----------------------------------------------------------------------------
#ifdef Rel10
/*! \fn rlc_op_status_t rrc_rlc_config_asn1_req (module_id_t module_idP, u32_t frame, u8_t eNB_flagP,  u8_t UE_index, SRB_ToAddMod_t* srb2addmod, DRB_ToAddModList_t* drb2add_listP, DRB_ToReleaseList_t*  drb2release_listP, MBMS_SessionInfoList_r9_t *SessionInfo_listP)
* \brief  Function for RRC to configure a Radio Bearer.
* \param[in]  module_idP         Virtualized module identifier.
* \param[in]  frame              Frame index.
* \param[in]  eNB_flag           Flag to indicate eNB (1) or UE (0)
* \param[in]  UE_index           Index of UE in eNB RRC
* \param[in]  srb2add_listP      SRB configuration list to be created.
* \param[in]  drb2add_listP      DRB configuration list to be created.
* \param[in]  drb2release_listP  DRB configuration list to be released.
* \param[in]  pmch_info_listP    eMBMS pmch info list to be created.
* \return     A status about the processing, OK or error code.
*/
public_rlc_rrc( rlc_op_status_t rrc_rlc_config_asn1_req (module_id_t, u32_t, u8_t, u8_t UE_index, SRB_ToAddModList_t*, DRB_ToAddModList_t*, DRB_ToReleaseList_t*, PMCH_InfoList_r9_t *pmch_info_listP);)
#else
/*! \fn rlc_op_status_t rrc_rlc_config_asn1_req (module_id_t module_idP, u32_t frame, u8_t eNB_flagP,  u8_t UE_index, SRB_ToAddModList_t* srb2add_listP, DRB_ToAddModList_t* drb2add_listP, DRB_ToReleaseList_t*  drb2release_listP, MBMS_SessionInfoList_r9_t *SessionInfo_listP)
* \brief  Function for RRC to configure a Radio Bearer.
* \param[in]  module_idP         Virtualized module identifier.
* \param[in]  frame              Frame index.
* \param[in]  eNB_flag           Flag to indicate eNB (1) or UE (0)
* \param[in]  UE_index           Index of UE in eNB RRC
* \param[in]  srb2add_listP      SRB configuration list to be created.
* \param[in]  drb2add_listP      DRB configuration list to be created.
* \param[in]  drb2release_listP  DRB configuration list to be released.
* \return     A status about the processing, OK or error code.
*/
public_rlc_rrc( rlc_op_status_t rrc_rlc_config_asn1_req (module_id_t, u32_t, u8_t, u8_t UE_index, SRB_ToAddModList_t*, DRB_ToAddModList_t*, DRB_ToReleaseList_t*);)
#endif

/*! \fn rlc_op_status_t rrc_rlc_remove_rlc   (module_id_t module_idP, u32_t frame, rb_id_t rb_idP)
* \brief  Remove a RLC protocol instance from a radio bearer.
* \param[in]  module_idP       Virtualized module identifier.
* \param[in]  frame            Frame index.
* \param[in]  rb_idP           Radio bearer identifier.
* \return     A status about the processing, OK or error code.
*/
private_rlc_rrc(rlc_op_status_t rrc_rlc_remove_rlc   (module_id_t, u32_t, rb_id_t);)

/*! \fn rlc_op_status_t rrc_rlc_add_rlc   (module_id_t module_idP, u32_t frameP, rb_id_t rb_idP, chan_id_t chan_idP, rlc_mode_t rlc_modeP)
* \brief  Add a RLC protocol instance to a radio bearer.
* \param[in]  module_idP       Virtualized module identifier.
* \param[in]  frameP           Frame index.
* \param[in]  rb_idP           Radio bearer identifier.
* \param[in]  chan_idP         Logical channel identifier.
* \param[in]  rlc_modeP        Mode of RLC (AM, UM, TM).
* \return     A status about the processing, OK or error code.
*/
private_rlc_rrc(rlc_op_status_t rrc_rlc_add_rlc      (module_id_t, u32_t, rb_id_t, chan_id_t, rlc_mode_t);)

/*! \fn rlc_op_status_t rrc_rlc_config_req (module_id_t module_idP, u32_t frame, u8_t eNB_flagP, config_action_t actionP, rb_id_t rb_idP, rb_type_t rb_typeP, rlc_info_t rlc_infoP)
* \brief  Function for RRC to configure a Radio Bearer.
* \param[in]  module_idP       Virtualized module identifier.
* \param[in]  frame            Frame index.
* \param[in]  eNB_flag         Flag to indicate eNB (1) or UE (0)
* \param[in]  actionP          Action for this radio bearer (add, modify, remove).
* \param[in]  rb_idP           Radio bearer identifier.
* \param[in]  rb_typeP         Type of radio bearer (signalling, data).
* \param[in]  rlc_infoP        RLC configuration parameters issued from Radio Resource Manager.
* \return     A status about the processing, OK or error code.
*/
public_rlc_rrc( rlc_op_status_t rrc_rlc_config_req   (module_id_t, u32_t, u8_t , config_action_t, rb_id_t, rb_type_t, rlc_info_t );)

/*! \fn rlc_op_status_t rrc_rlc_data_req     (module_id_t module_idP, u32_t frame, u8_t eNB_flagP, rb_id_t rb_idP, mui_t muiP, confirm_t confirmP, sdu_size_t sdu_sizeP, char* sduP)
* \brief  Function for RRC to send a SDU through a Signalling Radio Bearer.
* \param[in]  module_idP       Virtualized module identifier.
* \param[in]  frame            Frame index
* \param[in]  eNB_flag         Flag to indicate eNB (1) or UE (0)
* \param[in]  MBMS_flag        Flag to indicate whether this is an MBMS service (1) or not (0)
* \param[in]  rb_idP           Radio bearer identifier.
* \param[in]  muiP             Message Unit identifier.
* \param[in]  confirmP         Boolean, is confirmation requested.
* \param[in]  sdu_sizeP        Size of SDU in bytes.
* \param[in]  sduP             SDU.
* \return     A status about the processing, OK or error code.
*/
public_rlc_rrc( rlc_op_status_t rrc_rlc_data_req     (module_id_t, u32_t, u8_t, u8_t, rb_id_t, mui_t, confirm_t, sdu_size_t, char *);)

/*! \fn void  rrc_rlc_register_rrc ( void (*rrc_data_indP)  (module_id_t module_idP, u32_t frame, u8_t eNB_flag, rb_id_t rb_idP, sdu_size_t sdu_sizeP, char* sduP), void (*rrc_data_confP) (module_id_t module_idP, rb_id_t rb_idP, mui_t muiP, rlc_tx_status_t statusP)
* \brief  This function is called by RRC to register its DATA-INDICATE and DATA-CONFIRM handlers to RLC layer.
* \param[in]  rrc_data_indP       Pointer on RRC data indicate function.
* \param[in]  rrc_data_confP      Pointer on RRC data confirm callback function.
*/
public_rlc_rrc(void rrc_rlc_register_rrc (rrc_data_ind_cb_t rrc_data_indP, rrc_data_conf_cb_t rrc_data_confP);)

//-----------------------------------------------------------------------------
//   PUBLIC INTERFACE WITH MAC
//-----------------------------------------------------------------------------
/*! \fn tbs_size_t mac_rlc_data_req     (module_id_t module_idP, u32_t frame, u8_t MBMS_flagP, chan_id_t rb_idP, char* bufferP)
* \brief    Interface with MAC layer, map data request to the RLC corresponding to the radio bearer.
* \param [in]     module_idP       Virtualized module identifier.
* \param [in]     frame            Frame index
* \param [in]     MBMS_flagP       Flag to indicate whether this is the MBMS service (1) or not (0)
* \param [in]     rb_idP           Radio bearer identifier.
* \param [in,out] bufferP          Memory area to fill with the bytes requested by MAC.
* \return     A status about the processing, OK or error code.
*/
public_rlc_mac(tbs_size_t            mac_rlc_data_req     (module_id_t, u32_t, u8_t, chan_id_t, char*);)

/*! \fn void mac_rlc_data_ind     (module_id_t module_idP, u32_t frame, u8_t eNB_flagP, u8_t MBMS_flagP, chan_id_t rb_idP, u32_t frame, char* bufferP, tb_size_t tb_sizeP, num_tb_t num_tbP, crc_t *crcs)
* \brief    Interface with MAC layer, deserialize the transport blocks sent by MAC, then map data indication to the RLC instance corresponding to the radio bearer identifier.
* \param[in]  module_idP       Virtualized module identifier.
* \param[in]  frame            Frame index
* \param[in]  eNB_flagP        Flag to indicate eNB (1) or UE (0)
* \param[in]  MBMS_flagP       Flag to indicate whether this is the MBMS service (1) or not (0)
* \param[in]  rb_idP           Radio bearer identifier.
* \param[in]  frame            Frame index.
* \param[in]  bufferP          Memory area containing the transport blocks sent by MAC.
* \param[in]  tb_sizeP         Size of a transport block in bits.
* \param[in]  num_tbP          Number of transport blocks.
* \param[in]  crcs             Array of CRC decoding.
*/
public_rlc_mac(void                  mac_rlc_data_ind     (module_id_t, u32_t, u8_t, u8_t, chan_id_t, char*, tb_size_t, num_tb_t, crc_t* );)

/*! \fn mac_rlc_status_resp_t mac_rlc_status_ind     (module_id_t module_idP, u32_t frame, u8_t eNB_flag, u8_t MBMS_flagP, chan_id_t rb_idP, tb_size_t tb_sizeP)
* \brief    Interface with MAC layer, request and set the number of bytes scheduled for transmission by the RLC instance corresponding to the radio bearer identifier.
* \param[in]  module_idP       Virtualized module identifier.
* \param[in]  frame            Frame index.
* \param[in]  eNB_flag         Flag to indicate eNB operation (1 true, 0 false)
* \param[in]  MBMS_flagP       Flag to indicate whether this is the MBMS service (1) or not (0)
* \param[in]  rb_idP           Radio bearer identifier.
* \param[in]  tb_sizeP         Size of a transport block set in bytes.
* \return     The maximum number of bytes that the RLC instance can send in the next transmission sequence.
*/
public_rlc_mac(mac_rlc_status_resp_t mac_rlc_status_ind   (module_id_t, u32_t, u8_t, u8_t, chan_id_t, tb_size_t );)

//-----------------------------------------------------------------------------
//   PUBLIC RLC CONSTANTS
//-----------------------------------------------------------------------------
/** RLC null type identifier. */
#define  RLC_NONE  0
/** RLC AM type identifier. */
#define  RLC_AM    1
/** RLC UM type identifier. */
#define  RLC_UM    2
/** RLC TM type identifier. */
#define  RLC_TM    4

#define  RLC_MBMS_NO   0
#define  RLC_MBMS_YES  1

#define RLC_CHANNEL_ID_DUMMY -1
//-----------------------------------------------------------------------------
//   RLC methods
//-----------------------------------------------------------------------------
/*
 * Prints incoming byte stream in hexadecimal and readable form
 *
 * @param componentP Component identifier, see macros defined in UTIL/LOG/log.h
 * @param dataP      Pointer to data buffer to be displayed
 * @param sizeP      Number of octets in data buffer
 */
public_rlc(void rlc_util_print_hex_octets(comp_name_t componentP, unsigned char* dataP, unsigned long sizeP);)



/*! \fn rlc_op_status_t rlc_data_req(module_id_t module_idP, u32_t frame, u8_t eNB_flagP, u8_t MBMS_flagP, rb_id_t rb_idP, mui_t muiP, confirm_t confirmP, sdu_size_t sdu_sizeP, mem_block_t *sduP)
* \brief    Interface with higher layers, map request to the RLC corresponding to the radio bearer.
* \param[in]  module_idP       Virtualized module identifier.
* \param[in]  frame            Frame index.
* \param[in]  eNB_flagP        Flag to indicate eNB (1) or UE (0)
* \param[in]  MBMS_flagP       Flag to indicate whether this is the MBMS service (1) or not (0)
* \param[in]  rb_idP           Radio bearer identifier.
* \param[in]  muiP             Message Unit identifier.
* \param[in]  confirmP         Boolean, is confirmation requested.
* \param[in]  sdu_sizeP        Size of SDU in bytes.
* \param[in]  sduP             SDU.
* \return     A status about the processing, OK or error code.
*/
public_rlc(rlc_op_status_t rlc_data_req     (module_id_t, u32_t, u8_t, u8_t,rb_id_t, mui_t, confirm_t, sdu_size_t, mem_block_t*);)

/*! \fn void rlc_data_ind (module_id_t module_idP, u32_t frame, u8_t eNB_flag, u8_t MBMS_flagP, rb_id_t rb_idP, sdu_size_t sdu_sizeP, mem_block_t* sduP, boolean_t is_data_planeP)
* \brief    Interface with higher layers, route SDUs coming from RLC protocol instances to upper layer instance.
* \param[in]  module_idP       Virtualized module identifier.
* \param[in]  frame            Frame index
* \param[in]  eNB_flagP        Flag to indicate eNB (1) or UE (0)
* \param[in]  MBMS_flagP       Flag to indicate whether this is the MBMS service (1) or not (0)
* \param[in]  rb_idP           Radio bearer identifier.
* \param[in]  sdu_sizeP        Size of SDU in bytes.
* \param[in]  sduP             SDU.
* \param[in]  is_data_planeP   Boolean, is data radio bearer or not.
*/
public_rlc(void            rlc_data_ind     (module_id_t module_idP, u8_t eNB_id, u8_t UE_id, u32_t frame, u8_t eNB_flag, u8_t MBMS_flagP, rb_id_t, sdu_size_t, mem_block_t*, boolean_t);)


/*! \fn void rlc_data_conf     (module_id_t module_idP, u32_t frameP, u8_t eNB_flagP, rb_id_t rb_idP, mui_t muiP, rlc_tx_status_t statusP, boolean_t is_data_planeP)
* \brief    Interface with higher layers, confirm to upper layer the transmission status for a SDU stamped with a MUI, scheduled for transmission.
* \param[in]  module_idP       Virtualized module identifier.
* \param[in]  frameP           Frame index
* \param[in]  eNB_flagP        Flag to indicate eNB (1) or UE (0)
* \param[in]  rb_idP           Radio bearer identifier.
* \param[in]  muiP             Message Unit identifier.
* \param[in]  statusP          Status of the transmission (RLC_SDU_CONFIRM_YES, RLC_SDU_CONFIRM_NO).
* \param[in]  is_data_planeP   Boolean, is data radio bearer or not.
*/
public_rlc(void            rlc_data_conf    (module_id_t, u32_t, u8_t , rb_id_t, mui_t, rlc_tx_status_t, boolean_t );)


/*! \fn rlc_op_status_t rlc_stat_req     (module_id_t module_idP,
                              u32_t         frame,
                              rb_id_t       rb_idP,
                        unsigned int* stat_tx_pdcp_sdu,
                        unsigned int* stat_tx_pdcp_bytes,
                        unsigned int* stat_tx_pdcp_sdu_discarded,
                        unsigned int* stat_tx_pdcp_bytes_discarded,
                        unsigned int* stat_tx_data_pdu,
                        unsigned int* stat_tx_data_bytes,
                        unsigned int* stat_tx_retransmit_pdu_by_status,
                        unsigned int* stat_tx_retransmit_bytes_by_status,
                        unsigned int* stat_tx_retransmit_pdu,
                        unsigned int* stat_tx_retransmit_bytes,
                        unsigned int* stat_tx_control_pdu,
                        unsigned int* stat_tx_control_bytes,
                        unsigned int* stat_rx_pdcp_sdu,
                        unsigned int* stat_rx_pdcp_bytes,
                        unsigned int* stat_rx_data_pdus_duplicate,
                        unsigned int* stat_rx_data_bytes_duplicate,
                        unsigned int* stat_rx_data_pdu,
                        unsigned int* stat_rx_data_bytes,
                        unsigned int* stat_rx_data_pdu_dropped,
                        unsigned int* stat_rx_data_bytes_dropped,
                        unsigned int* stat_rx_data_pdu_out_of_window,
                        unsigned int* stat_rx_data_bytes_out_of_window,
                        unsigned int* stat_rx_control_pdu,
                        unsigned int* stat_rx_control_bytes,
                        unsigned int* stat_timer_reordering_timed_out,
                        unsigned int* stat_timer_poll_retransmit_timed_out,
                        unsigned int* stat_timer_status_prohibit_timed_out)

* \brief    Request RLC statistics of a particular radio bearer.
* \param[in]  module_idP                   .
* \param[in]  frame
* \param[in]  rb_idP                       .
* \param[out] stat_tx_pdcp_sdu                     Number of SDUs coming from upper layers.
* \param[out] stat_tx_pdcp_bytes                   Number of bytes coming from upper layers.
* \param[out] stat_tx_pdcp_sdu_discarded           Number of discarded SDUs coming from upper layers.
* \param[out] stat_tx_pdcp_bytes_discarded         Number of discarded bytes coming from upper layers.
* \param[out] stat_tx_data_pdu                     Number of transmitted data PDUs to lower layers.
* \param[out] stat_tx_data_bytes                   Number of transmitted data bytes to lower layers.
* \param[out] stat_tx_retransmit_pdu_by_status     Number of re-transmitted data PDUs due to status reception.
* \param[out] stat_tx_retransmit_bytes_by_status   Number of re-transmitted data bytes due to status reception.
* \param[out] stat_tx_retransmit_pdu               Number of re-transmitted data PDUs to lower layers.
* \param[out] stat_tx_retransmit_bytes             Number of re-transmitted data bytes to lower layers.
* \param[out] stat_tx_control_pdu                  Number of transmitted control PDUs to lower layers.
* \param[out] stat_tx_control_bytes                Number of transmitted control bytes to lower layers.
* \param[out] stat_rx_pdcp_sdu                     Number of SDUs delivered to upper layers.
* \param[out] stat_rx_pdcp_bytes                   Number of bytes delivered to upper layers.
* \param[out] stat_rx_data_pdus_duplicate          Number of duplicate PDUs received.
* \param[out] stat_rx_data_bytes_duplicate         Number of duplicate bytes received.
* \param[out] stat_rx_data_pdu                     Number of received PDUs from lower layers.
* \param[out] stat_rx_data_bytes                   Number of received bytes from lower layers.
* \param[out] stat_rx_data_pdu_dropped             Number of received PDUs from lower layers, then dropped.
* \param[out] stat_rx_data_bytes_dropped           Number of received bytes from lower layers, then dropped.
* \param[out] stat_rx_data_pdu_out_of_window       Number of data PDUs received out of the receive window.
* \param[out] stat_rx_data_bytes_out_of_window     Number of data bytes received out of the receive window.
* \param[out] stat_rx_control_pdu                  Number of control PDUs received.
* \param[out] stat_rx_control_bytes                Number of control bytes received.
* \param[out] stat_timer_reordering_timed_out      Number of times the timer "reordering" has timed-out.
* \param[out] stat_timer_poll_retransmit_timed_out Number of times the timer "poll_retransmit" has timed-out.
* \param[out] stat_timer_status_prohibit_timed_out Number of times the timer "status_prohibit" has timed-out.
*/

public_rlc(rlc_op_status_t rlc_stat_req     (module_id_t   module_idP,
        u32_t frame,
        rb_id_t        rb_idP,
        unsigned int* stat_tx_pdcp_sdu,
        unsigned int* stat_tx_pdcp_bytes,
        unsigned int* stat_tx_pdcp_sdu_discarded,
        unsigned int* stat_tx_pdcp_bytes_discarded,
        unsigned int* stat_tx_data_pdu,
        unsigned int* stat_tx_data_bytes,
        unsigned int* stat_tx_retransmit_pdu_by_status,
        unsigned int* stat_tx_retransmit_bytes_by_status,
        unsigned int* stat_tx_retransmit_pdu,
        unsigned int* stat_tx_retransmit_bytes,
        unsigned int* stat_tx_control_pdu,
        unsigned int* stat_tx_control_bytes,
        unsigned int* stat_rx_pdcp_sdu,
        unsigned int* stat_rx_pdcp_bytes,
        unsigned int* stat_rx_data_pdus_duplicate,
        unsigned int* stat_rx_data_bytes_duplicate,
        unsigned int* stat_rx_data_pdu,
        unsigned int* stat_rx_data_bytes,
        unsigned int* stat_rx_data_pdu_dropped,
        unsigned int* stat_rx_data_bytes_dropped,
        unsigned int* stat_rx_data_pdu_out_of_window,
        unsigned int* stat_rx_data_bytes_out_of_window,
        unsigned int* stat_rx_control_pdu,
        unsigned int* stat_rx_control_bytes,
        unsigned int* stat_timer_reordering_timed_out,
        unsigned int* stat_timer_poll_retransmit_timed_out,
        unsigned int* stat_timer_status_prohibit_timed_out);)

/*! \fn int rlc_module_init(void)
* \brief    RAZ the memory of the RLC layer, initialize the memory pool manager (mem_block_t structures mainly used in RLC module).
*/
public_rlc(int rlc_module_init(void);)

/** @} */
#ifndef USER_MODE
#define assert(x) ((x)?msg("rlc assertion fails\n"):0)
#endif


#define RLC_FG_COLOR_BLACK            "\e[0;30m"
#define RLC_FG_COLOR_RED              "\e[0;31m"
#define RLC_FG_COLOR_GREEN            "\e[0;32m"
#define RLC_FG_COLOR_ORANGE           "\e[0;33m"
#define RLC_FG_COLOR_BLUE             "\e[0;34m"
#define RLC_FG_COLOR_MAGENTA          "\e[0;35m"
#define RLC_FG_COLOR_CYAN             "\e[0;36m"
#define RLC_FG_COLOR_GRAY_BLACK       "\e[0;37m"
#define RLC_FG_COLOR_DEFAULT          "\e[0;39m"
#define RLC_FG_BRIGHT_COLOR_DARK_GRAY "\e[1;30m"
#define RLC_FG_BRIGHT_COLOR_RED       "\e[1;31m"
#define RLC_FG_BRIGHT_COLOR_GREEN     "\e[1;32m"
#define RLC_FG_BRIGHT_COLOR_YELLOW    "\e[1;33m"
#define RLC_FG_BRIGHT_COLOR_BLUE      "\e[1;34m"
#define RLC_FG_BRIGHT_COLOR_MAGENTA   "\e[1;35m"
#define RLC_FG_BRIGHT_COLOR_CYAN      "\e[1;36m"
#define RLC_FG_BRIGHT_COLOR_WHITE     "\e[1;37m"
#define RLC_FG_BRIGHT_COLOR_DEFAULT   "\e[0;39m"
#define RLC_REVERSE_VIDEO             "\e[7m"
#define RLC_NORMAL_VIDEO              "\e[27m"

#endif