FreeCalypso > hg > freecalypso-sw
view gsm-fw/g23m-gsm/dl/dl_dcch3.c @ 992:a7b0b426f9ca
target-utils: boot ROM UART autodetection revamped
The new implementation should work with both the familiar Calypso C035
boot ROM version found in our regular targets as well as the older
Calypso F741979B version found on the vintage D-Sample board.
author | Mychaela Falconia <falcon@ivan.Harhan.ORG> |
---|---|
date | Wed, 30 Dec 2015 21:28:41 +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 */