FreeCalypso > hg > fc-magnetite
view src/g23m-gprs/llc/llc_itxt.c @ 214:4d622fd5e701
src/aci2/alr/alr_dedi.c: hopefully last A5/3 bug fixed, AMR works now!
author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Sat, 15 Oct 2016 02:59:36 +0000 |
parents | 219afcfc6250 |
children |
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/* +----------------------------------------------------------------------------- | Project : | Modul : +----------------------------------------------------------------------------- | 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 is part of the entity LLC and implements all | functions to handles the incoming primitives as described in | the SDL-documentation (T201-statemachine) +----------------------------------------------------------------------------- */ #ifndef LLC_ITXT_C #define LLC_ITXT_C #endif #define ENTITY_LLC /*==== INCLUDES =============================================================*/ #include "typedefs.h" /* to get Condat data types */ #include "vsi.h" /* to get a lot of macros */ #include "macdef.h" #include "gprs.h" #include "gsm.h" /* to get a lot of macros */ #include "cnf_llc.h" /* to get cnf-definitions */ #include "mon_llc.h" /* to get mon-definitions */ #include "prim.h" /* to get the definitions of used SAP and directions */ #include "llc.h" /* to get the global entity definitions */ #include "llc_itxf.h" /* to get local function definitions */ #include "llc_llmes.h" /* to get LLME signal definitions */ #include "llc_irxs.h" /* to get ITX signal definitions */ /*==== CONST ================================================================*/ /*==== LOCAL VARS ===========================================================*/ /*==== PRIVATE FUNCTIONS ====================================================*/ /*==== PUBLIC FUNCTIONS =====================================================*/ /* +------------------------------------------------------------------------------ | Function : itx_T201_start +------------------------------------------------------------------------------ | Description : This procedure starts timer T201 for the current SAPI. | | Parameters : +------------------------------------------------------------------------------ */ GLOBAL void itx_T201_start (T_TIME length) { TRACE_FUNCTION( "itx_T201_start" ); /* * Start timer T201 for the current SAPI. */ #ifdef _SIMULATION_ /* * In simulation mode, use always a timer value of 5 seconds. */ vsi_t_start (VSI_CALLER (USHORT)(TIMER_T201_BASE + IMAP(llc_data->current_sapi)), 5000); #else vsi_t_start (VSI_CALLER (USHORT)(TIMER_T201_BASE + IMAP(llc_data->current_sapi)), length); #endif /* _SIMULATION_ */ return; } /* itx_T201_start() */ /* +------------------------------------------------------------------------------ | Function : itx_T201_stop +------------------------------------------------------------------------------ | Description : This procedure stops timer T201 for the current SAPI. | | Parameters : +------------------------------------------------------------------------------ */ GLOBAL void itx_T201_stop (void) { TRACE_FUNCTION( "itx_T201_stop" ); /* * Stops timer T201 for the current SAPI. */ vsi_t_stop (VSI_CALLER (USHORT)(TIMER_T201_BASE + IMAP(llc_data->current_sapi))); return; } /* itx_T201_stop() */ /* +------------------------------------------------------------------------------ | Function : itx_timer_t201 +------------------------------------------------------------------------------ | Description : Handles expiry of timer T201. This function is called from | pei_timeout(). | | Parameters : sapi - indicates the SAPI for which the timer has expired | +------------------------------------------------------------------------------ */ GLOBAL void itx_timer_t201 (UBYTE sapi) { TRACE_FUNCTION( "itx_timer_t201" ); TRACE_0_INFO("T201 EXPIRED" ); SWITCH_LLC (sapi); switch (GET_STATE(ITX)) { case ITX_ABM: /* * If a frame is associated with T201, increment the * retransmission counter and if below N200, restart * T201. Else initate the ABM-Re-Establish procedure. */ if ( llc_data->itx->t201_entry != NULL) { llc_data->itx->t201_entry->status = IQ_RETR_FRAME; if ( llc_data->itx->t201_entry->n_retr <= *(llc_data->n200) ) { TIMERSTART (T201, llc_data->t200->length); itx_send_next_frame (ABIT_SET_REQ); } else { /* * Initate ABM Re-Establish procedure. The state change * will be done by the reestablish procedure later. */ sig_itx_llme_reest_ind (LLGMM_ERRCS_ACK_NO_PEER_RES_REEST); } } /* SET_STATE (ITX, SAME_STATE); */ break; case ITX_ABM_PEER_BUSY: /* * If the Peer busy retransmission counter is below N200 * restart T201 and send an appropriated S frame. Else * initate the ABM-Re-Establish procedure. */ if ( llc_data->itx->n_pb_retr < *(llc_data->n200) ) { TIMERSTART (T201, llc_data->t200->length); sig_itx_irx_s_frame_req (ABIT_SET_REQ); llc_data->itx->n_pb_retr += 1; } else { sig_itx_llme_reest_ind (LLGMM_ERRCS_PEER_BUSY_REEST); } /* SET_STATE (ITX, SAME_STATE); */ break; default: TRACE_ERROR( "T201 unexpected" ); break; } } /* itx_timer_t201() */