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view gsm-fw/g23m-gsm/dl/dl_dcch3.c @ 811:d976884e0b07
aci: psa_sms?.c done
author | Space Falcon <falcon@ivan.Harhan.ORG> |
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date | Sun, 05 Apr 2015 07:50:02 +0000 |
parents | 3b6cc1a90ef8 |
children |
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/* +----------------------------------------------------------------------------- | Project : GSM-PS | Modul : DL_DCCH3 +----------------------------------------------------------------------------- | Copyright 2002 Texas Instruments Berlin, AG | All rights reserved. | | This file is confidential and a trade secret of Texas | Instruments Berlin, AG | The receipt of or possession of this file does not convey | any rights to reproduce or disclose its contents or to | manufacture, use, or sell anything it may describe, in | whole, or in part, without the specific written consent of | Texas Instruments Berlin, AG. +----------------------------------------------------------------------------- | Purpose : This Modul defines the functions for the slow | dedicated control channel (SAPI 3) of the component DL +----------------------------------------------------------------------------- */ #ifndef DL_DCCH3_C #define DL_DCCH3_C #include "config.h" #include "fixedconf.h" #include "condat-features.h" #define ENTITY_DL /*==== INCLUDES ===================================================*/ #include "typedefs.h" #include <string.h> #include "pconst.cdg" #include "vsi.h" #include "custom.h" #include "gsm.h" #include "mon_dl.h" #include "prim.h" #include "pei.h" #include "tok.h" #include "ccdapi.h" #include "dl.h" #include "dl_trc.h" /*==== EXPORT =====================================================*/ /*==== PRIVAT =====================================================*/ /*==== VARIABLES ==================================================*/ /*==== FUNCTIONS ==================================================*/ /* +--------------------------------------------------------------------+ | PROJECT : GSM-PS (6147) MODULE : DL_DCCH3 | | STATE : code ROUTINE : dcch3_init_dl_data | +--------------------------------------------------------------------+ PURPOSE : Initialisation of SDCCH data (SAPI 3) for an instance. */ GLOBAL void dcch3_init_dl_data (void) { GET_INSTANCE_DATA; T_CCH *pcch = &dl_data->cch[C_DCCH3]; TRACE_FUNCTION ("dcch3_init_dl_data()"); memset (pcch, 0, sizeof (T_CCH)); com_clear_queue (PS_SAPI_3); if (dl_data->dcch3_in_msg) { COM_FREE_POINTER (dl_data->dcch3_in_msg); dl_data->dcch3_in_msg = NULL; } dl_data->dcch3_disc_request = FALSE; set_channel_state(C_DCCH3, STATE_DISABLED); } /* +--------------------------------------------------------------------+ | PROJECT : GSM-PS (6147) MODULE : DL_DCCH3 | | STATE : code ROUTINE : dcch3_enable | +--------------------------------------------------------------------+ PURPOSE : Enabling SAPI 3 connections. */ GLOBAL void dcch3_enable (UBYTE ch_type) { GET_INSTANCE_DATA; TRACE_FUNCTION ("dcch3_enable()"); switch (dl_data->state[C_DCCH3]) { case STATE_DISABLED: set_channel_state (C_DCCH3, STATE_IDLE_DL); dl_data->cch[C_DCCH3].ch_type = ch_type; break; default: break; } } /* +--------------------------------------------------------------------+ | PROJECT : GSM-PS (6147) MODULE : DL_DCCH3 | | STATE : code ROUTINE : dcch3_establish_req | +--------------------------------------------------------------------+ PURPOSE : Establish Request for SDCCH (SAPI 3). */ GLOBAL void dcch3_establish_req (T_DL_ESTABLISH_REQ * est_req) { GET_INSTANCE_DATA; TRACE_FUNCTION ("dcch3_establish_req()"); DL_OFFLINE_TRACE (TRACE_DL_EVENT, C_DCCH3, est_req->ch_type, "est req"); switch (dl_data->state[C_DCCH3]) { case STATE_IDLE_DL: case STATE_DISABLED: case STATE_MULTIPLE_FRAME_ESTABLISHED: case STATE_TIMER_RECOVERY: { T_CCH *pcch = &dl_data->cch[C_DCCH3]; pcch->ch_type = est_req->ch_type; dl_data->dcch3_disc_request = FALSE; dl_data->dcch3_unserved = com_queue_awaiting_transmission (PS_SAPI_3) ? DL_UNSERVED : DL_ALL_DONE; com_clear_queue (PS_SAPI_3); pcch->vtx = SABM_CMD; pcch->time_flag = TRUE; pcch->rc = 0; set_channel_state (C_DCCH3, STATE_AWAITING_ESTABLISHMENT); TRACE_EVENT_WIN_P5 ("EST_REQ: %s SAPI=%u vtx=%s (%s#%u)", CH_TYPE_NAME[pcch->ch_type], est_req->sapi, VTX_NAME[pcch->vtx], __FILE10__, __LINE__); } break; default: break; } COM_FREE_POINTER (est_req); } /* +--------------------------------------------------------------------+ | PROJECT : GSM-PS (6147) MODULE : DL_SDCCH | | STATE : code ROUTINE : sdcch3_release_req | +--------------------------------------------------------------------+ PURPOSE : Release Request for SDCCH (SAPI 3). */ GLOBAL BOOL dcch3_release_req (T_DL_RELEASE_REQ * release_req) { GET_INSTANCE_DATA; BOOL bFree = TRUE; TRACE_FUNCTION ("dcch3_release_req()"); if (release_req->mode EQ DL_LOCAL_END_RELEASE) { DL_OFFLINE_TRACE (TRACE_DL_EVENT, C_DCCH3, release_req->ch_type, "local end release req"); bFree = FALSE; } else { DL_OFFLINE_TRACE (TRACE_DL_EVENT, C_DCCH3, release_req->ch_type, "normal release req"); dl_data->cch[C_DCCH3].ch_type = release_req->ch_type; switch (dl_data->state[C_DCCH3]) { default: bFree = FALSE; break; case STATE_AWAITING_ESTABLISHMENT: case STATE_MULTIPLE_FRAME_ESTABLISHED: case STATE_TIMER_RECOVERY: if (!dl_data->dcch3_disc_request AND (dl_data->cch[C_DCCH3].vtx EQ RR_CMD)) { dl_data->dcch3_disc_request = TRUE; } else { com_prepare_DISC (C_DCCH3, release_req->sapi); } break; case STATE_AWAITING_RELEASE: dl_data->cch[C_DCCH3].T200_counter = 0; break; } } if (bFree EQ FALSE) { PREUSE (release_req, release_cnf, DL_RELEASE_CNF); release_cnf->indication = com_queue_awaiting_transmission (PS_SAPI_3) ? DL_UNSERVED : DL_ALL_DONE; PSENDX (RR, release_cnf); dcch3_init_dl_data (); } return bFree; } /* +--------------------------------------------------------------------+ | PROJECT : GSM-PS (6147) MODULE : DL_DCCH3 | | STATE : code ROUTINE : dcch3_mdl_release_req | +--------------------------------------------------------------------+ PURPOSE : Release Request from Mobility Management for SDCCH (SAPI 3). */ GLOBAL void dcch3_mdl_release_req (void) { GET_INSTANCE_DATA; TRACE_FUNCTION ("dcch3_mdl_release_req()"); DL_OFFLINE_TRACE (TRACE_DL_EVENT, C_DCCH3, dl_data->cch[C_DCCH3].ch_type, "mdl rel req"); switch (dl_data->state[C_DCCH3]) { case STATE_AWAITING_ESTABLISHMENT: case STATE_TIMER_RECOVERY: case STATE_AWAITING_RELEASE: drr_dl_release_cnf (dl_data->cch[C_DCCH3].ch_type, PS_SAPI_3, TRUE); break; case STATE_MULTIPLE_FRAME_ESTABLISHED: drr_dl_release_ind (dl_data->cch[C_DCCH3].ch_type, PS_SAPI_3, NOT_PRESENT_8BIT, TRUE); break; default: break; } } /* +--------------------------------------------------------------------+ | PROJECT : GSM-PS (6147) MODULE : DL_DCCH3 | | STATE : code ROUTINE : dcch3_data_req | +--------------------------------------------------------------------+ PURPOSE : Data Request on SDCCH (SAPI 3). */ GLOBAL void dcch3_data_req (T_DL_DATA_REQ * data_req) { GET_INSTANCE_DATA; TRACE_FUNCTION ("dcch3_data_req()"); switch (dl_data->state[C_DCCH3]) { case STATE_MULTIPLE_FRAME_ESTABLISHED: case STATE_TIMER_RECOVERY: com_store_queue (PS_SAPI_3, data_req); break; default: COM_FREE_POINTER (data_req); break; } } /* +--------------------------------------------------------------------+ | PROJECT : GSM-PS (6147) MODULE : DL_SDCCH | | STATE : code ROUTINE : dcch3_check_disc | +--------------------------------------------------------------------+ PURPOSE : DISC command frame on DCCH3. */ GLOBAL int dcch3_check_disc (int send) { GET_INSTANCE_DATA; TRACE_FUNCTION ("dcch3_check_disc()"); if (dl_data->dcch3_disc_request AND !(dl_data->cch[C_DCCH3].vtx EQ RR_CMD)) { com_prepare_DISC (C_DCCH3, PS_SAPI_3); return uplink_awaiting_release (C_DCCH3, PS_SAPI_3); } else return send; } #endif /* DL_DCCH3_C */