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view src/g23m-gsm/cc/cc_act.c @ 383:43dbedde9d80
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author | Mychaela Falconia <falcon@freecalypso.org> |
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date | Sun, 14 Jan 2018 20:45:51 +0000 |
parents | 27a4235405c6 |
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/* +----------------------------------------------------------------------------- | Project : GSM-PS (6147) | Modul : CC_ACT +----------------------------------------------------------------------------- | 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 primitive processing functions | of the SDL process Call Control for the call active | phase of the component CC of the mobile station +----------------------------------------------------------------------------- */ #ifndef CC_ACT_C #define CC_ACT_C #define ENTITY_CC /*==== INCLUDES ===================================================*/ #include <string.h> #include "typedefs.h" #include "pcm.h" #include "vsi.h" #include "custom.h" #include "gsm.h" #include "message.h" #include "ccdapi.h" #include "prim.h" #include "cnf_cc.h" #include "mon_cc.h" #include "pei.h" #include "tok.h" #include "cc.h" #include "cc_em.h" /*==== EXPORT =====================================================*/ /*==== PROTOTYPES =================================================*/ LOCAL void cc_mncc_hold_retrieve_req (T_PRIM * prim); /*==== PRIVAT =====================================================*/ /*==== VARIABLES ==================================================*/ /*==== FUNCTIONS ==================================================*/ /* +--------------------------------------------------------------------+ | PROJECT : GSM-PS (6147) MODULE : CC_ACT | | STATE : code ROUTINE : cc_dtmf_full | +--------------------------------------------------------------------+ PURPOSE : Check whether DTMF buffer is full */ LOCAL BOOL cc_dtmf_full (const T_DTMF *p_dtmf) { TRACE_FUNCTION ("cc_dtmf_full()"); return ((p_dtmf->read EQ p_dtmf->write + 1) OR (p_dtmf->read EQ 0 AND p_dtmf->write EQ DTMF_BUF_SIZE - 1)); } /* +--------------------------------------------------------------------+ | PROJECT : GSM-PS (6147) MODULE : CC_ACT | | STATE : code ROUTINE : cc_dtmf_empty | +--------------------------------------------------------------------+ PURPOSE : Check whether DTMF buffer is empty */ LOCAL BOOL cc_dtmf_empty (const T_DTMF *p_dtmf) { TRACE_FUNCTION ("cc_dtmf_empty()"); return (p_dtmf->read EQ p_dtmf->write); } /* +--------------------------------------------------------------------+ | PROJECT : GSM-PS (6147) MODULE : CC_ACT | | STATE : code ROUTINE : cc_dtmf_write | +--------------------------------------------------------------------+ PURPOSE : Write next entry into DTMF buffer. No checks are done (e.g. buffer full) */ LOCAL void cc_dtmf_write (T_DTMF *p_dtmf, UBYTE val) { TRACE_FUNCTION ("cc_dtmf_write()"); p_dtmf->buf[p_dtmf->write++] = val; if (p_dtmf->write EQ DTMF_BUF_SIZE) p_dtmf->write = 0; } /* +--------------------------------------------------------------------+ | PROJECT : GSM-PS (6147) MODULE : CC_ACT | | STATE : code ROUTINE : cc_dtmf_write | +--------------------------------------------------------------------+ PURPOSE : Read next entry from DTMF buffer. No checks are done (e.g. buffer empty) */ LOCAL UBYTE cc_dtmf_read (T_DTMF *p_dtmf) { UBYTE val; TRACE_FUNCTION ("cc_dtmf_read()"); val = p_dtmf->buf[p_dtmf->read++]; if (p_dtmf->read EQ DTMF_BUF_SIZE) p_dtmf->read = 0; return val; } /* +--------------------------------------------------------------------+ | PROJECT : GSM-PS (6147) MODULE : CC_ACT | | STATE : code ROUTINE : cc_dtmf_allowed | +--------------------------------------------------------------------+ PURPOSE : This functions returns TRUE if DTMF is allowed in the current state, otherwise FALSE. */ LOCAL BOOL cc_dtmf_allowed (void) { GET_INSTANCE_DATA; TRACE_FUNCTION ("cc_dtmf_allowed()"); /* * "The mobile station shall be capable of transmitting DTMF messages if * and only if the mobile station has the user connection for speech * attached and an appropriate channel is available. * * ".." * * NOTE 1: This specification means that DTMF messages can generally be * sent in the active state of a call in speech transmission * mode or when a traffic channel is available during setup or * release and the progress indicator IE has been received." * * [TS 24.008 subclause 5.5.7] * * As of GSM 04.08 the progress indicator IE can be received by * CALL PROCEEDING, PROGRESS, CONNECT, SETUP, ALERTING and DISCONNECT. */ switch (cc_data->state[cc_data->index_ti]) { case M_CC_CS_3: /* mobile originating call proceeding */ case M_CC_CS_4: /* call delivered */ case M_CC_CS_8: /* connect request */ case M_CC_CS_11: /* disconnect request */ case M_CC_CS_12: /* disconnect indication */ case M_CC_CS_19: /* release request */ case CS_101: /* substate of CS_10, reestablish requested */ case M_CC_CS_26: /* mobile originating modify */ case CS_261: /* substate of CS_26, reestablish requested */ if (cc_data->progress_desc[cc_data->index_ti] EQ NOT_PRESENT_8BIT) return FALSE; /* Progress indicator IE has not been received */ /*FALLTHROUGH*/ /*lint -fallthrough*/ case M_CC_CS_10: /* active */ if (cc_data->channel_type EQ NAS_CH_SDCCH) return FALSE; /* No TCH assigned */ if ((cc_data->channel_mode NEQ NAS_CHM_SPEECH) AND (cc_data->channel_mode NEQ NAS_CHM_SPEECH_V2) AND (cc_data->channel_mode NEQ NAS_CHM_SPEECH_V3)) return FALSE; /* Channel mode is not speech */ return TRUE; default: return FALSE; } } /*==== VARIABLES ==================================================*/ /*==== FUNCTIONS ==================================================*/ /* +--------------------------------------------------------------------+ | PROJECT : GSM-PS (6147) MODULE : CC_ACT | | STATE : code ROUTINE : cc_mncc_start_dtmf_req | +--------------------------------------------------------------------+ PURPOSE : Sending of DTMF tones to the infrastructure side. */ GLOBAL void cc_mncc_start_dtmf_req (T_MNCC_START_DTMF_REQ * dtmf) { GET_INSTANCE_DATA; T_DTMF * p_dtmf; TRACE_FUNCTION ("cc_mncc_start_dtmf_req()"); if ((cc_data->index_ti = srv_convert_ti (dtmf->ti)) EQ NOT_PRESENT_8BIT) { PFREE (dtmf); return; } switch (cc_data->state[cc_data->index_ti]) { default: if (!cc_dtmf_allowed ()) { /* Tone dropped. Confirm DTMF request with negative cause */ PALLOC (dtmf_cnf, MNCC_START_DTMF_CNF); dtmf_cnf->ti = dtmf->ti; dtmf_cnf->key = dtmf->key; dtmf_cnf->cause = MNCC_CAUSE_DTMF_NOT_ALLOWED; dtmf_cnf->dtmf_mod = dtmf->dtmf_mod; PSENDX (MMI, dtmf_cnf); PFREE (dtmf); return; } p_dtmf = &cc_data->dtmf [cc_data->index_ti]; if ( dtmf->dtmf_mod EQ MNCC_DTMF_MOD_AUTO OR dtmf->dtmf_mod EQ MNCC_DTMF_MOD_MAN_START ) { if (p_dtmf->state EQ DTMF_IDLE) { /* * If sending of DTMF tones is not in * progress send the tone. */ CCD_START; { MCAST (start_dtmf, U_START_DTMF); cc_build_start_dtmf (dtmf->key, start_dtmf); for_start_dtmf (start_dtmf); } CCD_END; /* On sending a START DTMF message the MS shall start T336 */ TIMERSTART (T336, T336_VALUE); p_dtmf->state = DTMF_SEND_REQUEST; p_dtmf->mode = (dtmf->dtmf_mod EQ MNCC_DTMF_MOD_AUTO)?DTMF_AUTO:DTMF_MAN; p_dtmf->key = dtmf->key; } else { /* * Not DTMF_IDLE. */ if (dtmf->dtmf_mod EQ MNCC_DTMF_MOD_AUTO) { /* * If DTMF_MOD_AUTO, store the tone if the buffer is not full. */ if (!cc_dtmf_full (p_dtmf)) cc_dtmf_write (p_dtmf, (UBYTE)SET_DTMF_MOD(dtmf->key, DTMF_AUTO)); // PATCH HM 13.04.00 >>> else { /* Tone dropped. Confirm DTMF request with negative cause */ PALLOC (dtmf_cnf, MNCC_START_DTMF_CNF); dtmf_cnf->ti = dtmf->ti; dtmf_cnf->key = dtmf->key; dtmf_cnf->cause = MNCC_CAUSE_DTMF_BUFFER_FULL; dtmf_cnf->dtmf_mod = dtmf->dtmf_mod; PSENDX(MMI, dtmf_cnf); } // PATCH HM 13.04.00 <<< } else { /* * If DTMF_MOD_MAN_START, two conditions have to be fullfilled * that the tone is stored and not dropped: * * - The buffer is not full. * - There is enough room to store the stop which * will follow the tone. */ if (!cc_dtmf_full (p_dtmf) AND (p_dtmf->read NEQ (p_dtmf->write + 2) % DTMF_BUF_SIZE)) { cc_dtmf_write (p_dtmf, (UBYTE)SET_DTMF_MOD(dtmf->key, DTMF_MAN)); } // PATCH HM 13.04.00 >>> else { /* Tone dropped. Confirm DTMF request with negative cause */ PALLOC (dtmf_cnf, MNCC_START_DTMF_CNF); dtmf_cnf->ti = dtmf->ti; dtmf_cnf->key = dtmf->key; dtmf_cnf->cause = MNCC_CAUSE_DTMF_BUFFER_FULL; dtmf_cnf->dtmf_mod = dtmf->dtmf_mod; PSENDX (MMI, dtmf_cnf); } // PATCH HM 13.04.00 <<< } } } else { /* * This is DTMF_MOD_MAN_STOP */ if ( p_dtmf->state EQ DTMF_SEND_ACKNOWLEDGE AND cc_dtmf_empty (p_dtmf)) { /* * If sending of DTMF tones is in * progress stop the tone. */ for_stop_dtmf (); /* On sending a STOP DTMF message the MS shall start T337 */ TIMERSTART (T337, T337_VALUE); p_dtmf->state = DTMF_STOP_REQUEST; } else { /* * If DTMF_MOD_MAN_STOP, the stop mark is stored if * the buffer is not full. If DTMF STOP ACK is received * and there are unexpected stops in the buffer due to * a loss of the respective tones, the stops are dropped * until a tone is found. */ if (!cc_dtmf_full(p_dtmf)) { cc_dtmf_write (p_dtmf, NOT_PRESENT_8BIT); } } } PFREE (dtmf) break; case M_CC_CS_26: /* mobile originating modify */ case CS_101: case CS_261: srv_store_prim ((T_PRIM *)D2P(dtmf)); break; } } /* +--------------------------------------------------------------------+ | PROJECT : GSM-PS (6147) MODULE : CC_ACT | | STATE : code ROUTINE : cc_reset_dtmf | +--------------------------------------------------------------------+ PURPOSE : Reset DTMF machine. If used before CC leaves any state in which DTMF is possible MMI is informed about DTMF failure if there was still a DTMF request outstanding. */ GLOBAL void cc_reset_dtmf (void) { GET_INSTANCE_DATA; T_DTMF * p_dtmf; BOOL dtmf_aborted; TRACE_FUNCTION ("cc_reset_dtmf"); p_dtmf = &cc_data->dtmf[cc_data->index_ti]; if (cc_dtmf_allowed()) { /* Stop all possibly running DTMF timers */ TIMERSTOP (TIMER_DTMF); /* * A DTMF acknowledge maybe outstanding for ACI either if the * DTMF state is DTMF_SEND_REQ or * a tone was found in the DTMF send buffer */ dtmf_aborted = (p_dtmf->state EQ DTMF_SEND_REQUEST); while (!dtmf_aborted AND !cc_dtmf_empty(p_dtmf)) dtmf_aborted = (cc_dtmf_read (p_dtmf) NEQ NOT_PRESENT_8BIT); if (dtmf_aborted) { /* Tone dropped. Confirm DTMF request with negative cause */ PALLOC (dtmf_cnf, MNCC_START_DTMF_CNF); dtmf_cnf->ti = cc_data->ti; dtmf_cnf->key = NOT_PRESENT_8BIT; dtmf_cnf->cause = MNCC_CAUSE_DTMF_ABORTED; dtmf_cnf->dtmf_mod = NOT_PRESENT_8BIT; PSENDX (MMI, dtmf_cnf); } } p_dtmf->state = DTMF_IDLE; p_dtmf->write = 0; p_dtmf->read = 0; } /* +--------------------------------------------------------------------+ | PROJECT : GSM-PS (6147) MODULE : CC_ACT | | STATE : code ROUTINE : cc_start_dtmf_ack | +--------------------------------------------------------------------+ PURPOSE : Processing an incoming start dtmf acknowledge message. */ GLOBAL void cc_start_dtmf_ack (T_D_START_DTMF_ACK * start_dtmf_ack) { GET_INSTANCE_DATA; T_DTMF * p_dtmf; TRACE_FUNCTION ("cc_start_dtmf_ack()"); if (cc_dtmf_allowed ()) { if (cc_check_error_flag ()) { p_dtmf = &cc_data->dtmf[cc_data->index_ti]; /* Stop T336 */ TIMERSTOP (TIMER_DTMF); if (p_dtmf->state EQ DTMF_SEND_REQUEST) { PALLOC (start, MNCC_START_DTMF_CNF); start->ti = cc_data->ti; start->key = start_dtmf_ack->key_facility.key; start->cause = MNCC_CAUSE_DTMF_START_SUCCESS; start->dtmf_mod = (p_dtmf->mode EQ DTMF_AUTO) ? MNCC_DTMF_MOD_AUTO : MNCC_DTMF_MOD_MAN_START; PSENDX (MMI, start); EM_CC_START_DTMF_ACKNOWLEDGE; if( p_dtmf->mode EQ DTMF_AUTO ) { for_stop_dtmf (); /* On sending a STOP DTMF message the MS shall start T337 */ TIMERSTART (T337, T337_VALUE); p_dtmf->state = DTMF_STOP_REQUEST; } else { /* This is DTMF_MAN */ if (!cc_dtmf_empty (p_dtmf)) { UBYTE tone; tone = cc_dtmf_read (p_dtmf); if (tone EQ NOT_PRESENT_8BIT) { /* Should be always true */ p_dtmf->mode = GET_DTMF_MOD(tone); for_stop_dtmf (); /* On sending a STOP DTMF message the MS shall start T337 */ TIMERSTART (T337, T337_VALUE); p_dtmf->state = DTMF_STOP_REQUEST; } while (!cc_dtmf_empty(p_dtmf) AND p_dtmf->buf[p_dtmf->read] EQ NOT_PRESENT_8BIT) { /* Consume all unwanted stop marks */ (void)cc_dtmf_read(p_dtmf); } } else p_dtmf->state = DTMF_SEND_ACKNOWLEDGE; } /* Implements Measure# 3 and streamline encoding */ CCD_END; } else { /* Implements Measure# 3 and streamline encoding */ CCD_END; cc_send_status (M_CC_CAUSE_MESSAGE_TYPE_INCOMPAT); } /* Implements Measure# 3 and streamline encoding */ } /* if (cc_check_error_flag (cc_data)) */ } /* if (cc_dtmf_allowed (cc_data)) */ else { /* * DTMF not allowed for some reason, e.g. wrong state, * call is not a speech call, no TCH assigned etc. */ CCD_END; /* Implements Measure# 3 and streamline encoding */ cc_send_status (M_CC_CAUSE_MESSAGE_TYPE_INCOMPAT); } } /* +--------------------------------------------------------------------+ | PROJECT : GSM-PS (6147) MODULE : CC_ACT | | STATE : code ROUTINE : cc_start_dtmf_rej | +--------------------------------------------------------------------+ PURPOSE : Processing an incoming start dtmf reject message. */ GLOBAL void cc_start_dtmf_rej (T_D_START_DTMF_REJ * start_dtmf_rej) { GET_INSTANCE_DATA; T_DTMF * p_dtmf; TRACE_FUNCTION ("cc_start_dtmf_rej()"); if (cc_dtmf_allowed ()) { if (cc_check_error_flag ()) { /* Stop T336 */ TIMERSTOP (TIMER_DTMF); p_dtmf = &cc_data->dtmf[cc_data->index_ti]; if (p_dtmf->state EQ DTMF_SEND_REQUEST) { PALLOC (start, MNCC_START_DTMF_CNF); start->ti = cc_data->ti; start->key = NOT_PRESENT_8BIT; start->dtmf_mod = NOT_PRESENT_8BIT; /* * cause IE is mandatory and the check for presence has been done already * thus there is no need to check for validity of cause IE here anymore */ start->cause = CAUSE_MAKE(DEFBY_STD, ORIGSIDE_NET, MNCC_CC_ORIGINATING_ENTITY, start_dtmf_rej->cc_cause.cause); PSENDX (MMI, start); p_dtmf->state = DTMF_IDLE; p_dtmf->write = 0; p_dtmf->read = 0; /* Implements Measure# 3 and streamline encoding */ CCD_END; } else { /* Implements Measure# 3 and streamline encoding */ CCD_END; cc_send_status (M_CC_CAUSE_MESSAGE_TYPE_INCOMPAT); } /* Implements Measure# 3 and streamline encoding */ } } else { /* * DTMF not allowed for some reason, e.g. wrong state, * call is not a speech call, no TCH assigned etc. */ CCD_END; /* Implements Measure# 3 and streamline encoding */ cc_send_status (M_CC_CAUSE_MESSAGE_TYPE_INCOMPAT); } } /* +--------------------------------------------------------------------+ | PROJECT : GSM-PS (6147) MODULE : CC_ACT | | STATE : code ROUTINE : cc_stop_dtmf | +--------------------------------------------------------------------+ PURPOSE : Stops DTMF, back to DTMF_IDLE state. Reasons for call: 1.) Reception of STOP DTMF ACK message 2.) Expiry of T336 3.) Expiry of T337 */ GLOBAL void cc_stop_dtmf (void) { GET_INSTANCE_DATA; T_DTMF * p_dtmf; TRACE_FUNCTION ("cc_stop_dtmf()"); p_dtmf = &cc_data->dtmf[cc_data->index_ti]; while (!cc_dtmf_empty(p_dtmf)) { UBYTE tone; tone = cc_dtmf_read (p_dtmf); if (tone NEQ NOT_PRESENT_8BIT) { /* * another DTMF tone has to be sent */ p_dtmf->mode = GET_DTMF_MOD (tone); p_dtmf->key = tone & 0x7f; CCD_START; { MCAST (start, U_START_DTMF); cc_build_start_dtmf (p_dtmf->key, start); for_start_dtmf (start); } CCD_END; /* On sending a START DTMF message the MS shall start T336 */ TIMERSTART (T336, T336_VALUE); p_dtmf->state = DTMF_SEND_REQUEST; return; } } p_dtmf->state = DTMF_IDLE; srv_use_stored_prim (); } /* +--------------------------------------------------------------------+ | PROJECT : GSM-PS (6147) MODULE : CC_ACT | | STATE : code ROUTINE : cc_stop_dtmf_ack | +--------------------------------------------------------------------+ PURPOSE : Processing an incoming stop dtmf ack message. */ GLOBAL void cc_stop_dtmf_ack (void) { GET_INSTANCE_DATA; T_DTMF * p_dtmf; TRACE_FUNCTION ("cc_stop_dtmf_ack()"); if (cc_dtmf_allowed ()) { if (cc_check_error_flag ()) { CCD_END; p_dtmf = &cc_data->dtmf[cc_data->index_ti]; if (p_dtmf->state EQ DTMF_STOP_REQUEST) { if (p_dtmf->mode EQ DTMF_MAN) { PALLOC (start, MNCC_START_DTMF_CNF); start->ti = cc_data->ti; start->key = NOT_PRESENT_8BIT; start->cause = MNCC_CAUSE_DTMF_STOP_SUCCESS; start->dtmf_mod = MNCC_DTMF_MOD_MAN_STOP; PSENDX (MMI, start); } /* Stop T337 */ TIMERSTOP (TIMER_DTMF); cc_stop_dtmf (); } else { /* * The STOP DTMF ACK message was not expected as we did not sent * previously a START DTMF request. */ /* Implements Measure# 3 and streamline encoding */ cc_send_status (M_CC_CAUSE_MESSAGE_TYPE_INCOMPAT); } } } else { /* * DTMF not allowed in the current state */ CCD_END; /* Implements Measure# 3 and streamline encoding */ cc_send_status (M_CC_CAUSE_MESSAGE_TYPE_INCOMPAT); } } /* +--------------------------------------------------------------------+ | PROJECT : GSM-PS (6147) MODULE : CC_ACT | | STATE : code ROUTINE : cc_mncc_facility_req | +--------------------------------------------------------------------+ PURPOSE : Sending of Facility Information by the mobile side. */ GLOBAL void cc_mncc_facility_req (T_MNCC_FACILITY_REQ * facility) { GET_INSTANCE_DATA; TRACE_FUNCTION ("cc_mncc_facility_req()"); if ((cc_data->index_ti = srv_convert_ti (facility->ti)) EQ NOT_PRESENT_8BIT) { PFREE (facility); return; } switch (cc_data->state[cc_data->index_ti]) { case M_CC_CS_19: PFREE (facility); break; case M_CC_CS_01: case CS_101: case CS_261: srv_store_prim ((T_PRIM *)D2P(facility)); break; default: CCD_START; { MCAST (facility_msg, U_FACILITY); cc_build_facility (facility, facility_msg); for_facility (facility_msg); EM_CC_FACILITY_TO_THE_NETWORK; } CCD_END; PFREE (facility); break; } } /* +--------------------------------------------------------------------+ | PROJECT : GSM-PS (6147) MODULE : CC_ACT | | STATE : code ROUTINE : cc_mncc_modify_req | +--------------------------------------------------------------------+ PURPOSE : Start of a mobile originated in-call modification. */ GLOBAL void cc_mncc_modify_req (T_MNCC_MODIFY_REQ * modify) { GET_INSTANCE_DATA; TRACE_FUNCTION ("cc_mncc_modify_req()"); if ((cc_data->index_ti = srv_convert_ti (modify->ti)) EQ NOT_PRESENT_8BIT) { PFREE (modify); return; } switch (cc_data->state[cc_data->index_ti]) { case M_CC_CS_10: if (((cc_data->hold_state[cc_data->index_ti] EQ M_CC_HLD_IDLE)) AND (cc_data->dtmf[cc_data->index_ti].state EQ DTMF_IDLE)) { /* * If no other procedure is running */ CCD_START; { MCAST (modify_msg, B_MODIFY); cc_build_modify (modify, modify_msg); for_modify (modify_msg); } CCD_END; PFREE (modify); cc_set_state (M_CC_CS_26); TIMERSTART (T323, T323_VALUE); EM_CC_MO_IN_CALL_MODIFICATION; } else srv_store_prim ((T_PRIM *)D2P(modify)); break; default: PFREE (modify); break; } } /* +--------------------------------------------------------------------+ | PROJECT : GSM-PS (6147) MODULE : CC_ACT | | STATE : code ROUTINE : cc_mncc_user_req | +--------------------------------------------------------------------+ PURPOSE : Send user information or congestion control. */ GLOBAL void cc_mncc_user_req (T_MNCC_USER_REQ * user) { GET_INSTANCE_DATA; TRACE_FUNCTION ("cc_mncc_user_req()"); if ((cc_data->index_ti = srv_convert_ti (user->ti)) EQ NOT_PRESENT_8BIT) { PFREE (user); return; } switch (cc_data->state[cc_data->index_ti]) { case M_CC_CS_10: switch (user->congest_lev) { case M_CC_CL_RECEIVER_READY: case M_CC_CL_RECEIVER_NOT_READY: /* * Send Congestion Control */ CCD_START; { MCAST (cong_ctrl, B_CONGEST_CTRL); cc_build_congestion_control (user, cong_ctrl); for_congestion_control (cong_ctrl); } CCD_END; PFREE (user); break; default: /* * Send User Information */ CCD_START; { MCAST (user_msg, B_USER_INFO); cc_build_user_information (user, user_msg); for_user_information (user_msg); } CCD_END; PFREE (user); break; } break; case CS_101: srv_store_prim ((T_PRIM *)D2P(user)); break; default: PFREE (user); break; } } /* +--------------------------------------------------------------------+ | PROJECT : GSM-PS (6147) MODULE : CC_ACT | | STATE : code ROUTINE : cc_mncc_hold_req | +--------------------------------------------------------------------+ PURPOSE : Send hold message. */ GLOBAL void cc_mncc_hold_req (T_MNCC_HOLD_REQ * hold) { TRACE_FUNCTION ("cc_mncc_hold_req()"); /* Implements Measure# 18 */ cc_mncc_hold_retrieve_req ((T_PRIM *)D2P(hold)); } /* +--------------------------------------------------------------------+ | PROJECT : GSM-PS (6147) MODULE : CC_ACT | | STATE : code ROUTINE : cc_mncc_retrieve_req | +--------------------------------------------------------------------+ PURPOSE : Send retrieve message. */ GLOBAL void cc_mncc_retrieve_req (T_MNCC_RETRIEVE_REQ * retrieve) { TRACE_FUNCTION ("cc_mncc_retrieve_req()"); /* Implements Measure# 18 */ cc_mncc_hold_retrieve_req ((T_PRIM *)D2P(retrieve)); } /* +--------------------------------------------------------------------+ | PROJECT : GSM-PS (6147) MODULE : CC_ACT | | STATE : code ROUTINE : cc_call_is_active | +--------------------------------------------------------------------+ PURPOSE : Return TRUE if the respective CC instance is in an active state, otherwise return FALSE. */ LOCAL BOOL cc_call_is_active (UBYTE index_ti) { GET_INSTANCE_DATA; TRACE_FUNCTION ("cc_call_is_active()"); switch (cc_data->state[index_ti]) { case M_CC_CS_10: case M_CC_CS_26: case CS_101: case CS_261: return TRUE; default: return FALSE; } } /* +--------------------------------------------------------------------+ | PROJECT : GSM-PS (6147) MODULE : CC_ACT | | STATE : code ROUTINE : cc_mncc_sync_req | +--------------------------------------------------------------------+ PURPOSE : Processing a MNCC_SYNC_REQ primitive. To be able to understand some details of this function, see first GSM 03.84, GSM 04.84 and GSM 11.10 chapters 31.4.1 and 31.4.2. */ GLOBAL void cc_mncc_sync_req (T_MNCC_SYNC_REQ * mncc_sync_req) { GET_INSTANCE_DATA; UBYTE i; TRACE_FUNCTION ("cc_mncc_sync_req()"); if ((cc_data->index_ti = srv_convert_ti (mncc_sync_req->ti)) EQ NOT_PRESENT_8BIT) { PFREE (mncc_sync_req); return; } switch (cc_data->state[cc_data->index_ti]) { /* * Note: MPTY and HOLD only has a meaning in the following states, * in other states these aux states have absolutely no meaning. */ case M_CC_CS_10: case M_CC_CS_26: case CS_101: case CS_261: switch (mncc_sync_req->synccs) { case MNCC_SYNCCS_MPTY_EVENT: TRACE_EVENT_P2 (" ti = %d, mpty_event = %d", mncc_sync_req->ti, mncc_sync_req->mpty_event); switch (mncc_sync_req->mpty_event) { case MNCC_MPTY_BUILD_SENT: for (i = 0; i < MAX_CC_CALLS; i++) { if (cc_call_is_active(i) AND cc_data->mpty_state[i] EQ M_CC_MPTY_IDLE) { cc_data->mpty_state[i] = M_CC_MPTY_REQ; } } break; case MNCC_MPTY_BUILD_FAIL: for (i = 0; i < MAX_CC_CALLS; i++) { if (cc_call_is_active(i) AND cc_data->mpty_state[i] EQ M_CC_MPTY_REQ) { cc_data->mpty_state[i] = M_CC_MPTY_IDLE; } } break; case MNCC_MPTY_BUILD_SUCCESS: for (i = 0; i < MAX_CC_CALLS; i++) { if (cc_call_is_active(i)) { cc_data->mpty_state[i] = M_CC_MPTY_CALL; cc_data->hold_state[i] = M_CC_HLD_IDLE; } } break; /* -- */ case MNCC_MPTY_SPLIT_SENT: if (cc_data->mpty_state[cc_data->index_ti] EQ M_CC_MPTY_CALL) { cc_data->mpty_state[cc_data->index_ti] = M_CC_MPTY_SPLIT; } break; case MNCC_MPTY_SPLIT_FAIL: if (cc_data->mpty_state[cc_data->index_ti] EQ M_CC_MPTY_SPLIT) { cc_data->mpty_state[cc_data->index_ti] = M_CC_MPTY_CALL; } break; case MNCC_MPTY_SPLIT_SUCCESS: cc_data->mpty_state[cc_data->index_ti] = M_CC_MPTY_IDLE; cc_data->hold_state[cc_data->index_ti] = M_CC_HLD_IDLE; for (i = 0; i < MAX_CC_CALLS; i++) { if (cc_call_is_active(i) AND cc_data->mpty_state[i] NEQ M_CC_MPTY_IDLE) { cc_data->hold_state[i] = M_CC_HLD_CALL_HELD; } } break; /* -- */ case MNCC_MPTY_HOLD_SENT: for (i = 0; i < MAX_CC_CALLS; i++) { if (cc_call_is_active(i) AND cc_data->mpty_state[i] NEQ M_CC_MPTY_IDLE) { cc_data->hold_state[i] = M_CC_HLD_HOLD_REQ; } } break; case MNCC_MPTY_HOLD_FAIL: for (i = 0; i < MAX_CC_CALLS; i++) { if (cc_call_is_active(i) AND cc_data->mpty_state[i] NEQ M_CC_MPTY_IDLE) { cc_data->hold_state[i] = M_CC_HLD_IDLE; } } break; case MNCC_MPTY_HOLD_SUCCESS: for (i = 0; i < MAX_CC_CALLS; i++) { if (cc_call_is_active(i) AND cc_data->mpty_state[i] NEQ M_CC_MPTY_IDLE) { cc_data->hold_state[i] = M_CC_HLD_CALL_HELD; } } break; /* -- */ case MNCC_MPTY_RETRIEVE_SENT: for (i = 0; i < MAX_CC_CALLS; i++) { if (cc_call_is_active(i) AND cc_data->mpty_state[i] NEQ M_CC_MPTY_IDLE) { cc_data->hold_state[i] = M_CC_HLD_RETRIEVE_REQ; } } break; case MNCC_MPTY_RETRIEVE_FAIL: for (i = 0; i < MAX_CC_CALLS; i++) { if (cc_call_is_active(i) AND cc_data->mpty_state[i] NEQ M_CC_MPTY_IDLE) { cc_data->hold_state[i] = M_CC_HLD_CALL_HELD; } } break; case MNCC_MPTY_RETRIEVE_SUCCESS: for (i = 0; i < MAX_CC_CALLS; i++) { if (cc_call_is_active(i) AND cc_data->mpty_state[i] NEQ M_CC_MPTY_IDLE) { cc_data->hold_state[i] = M_CC_HLD_IDLE; } } break; /* -- */ default: TRACE_ERROR ("Illegal MPTY event"); break; } /* switch (mncc_sync_req->mpty_event) */ break; default: TRACE_ERROR ("Illegal SYNCCS"); } /* switch (mncc_sync_req->synccs) */ break; default: break; /* Ignore the event */ } /* switch (cc_data->state[cc_data->index_ti]) */ #ifndef NTRACE for (i = 0; i < MAX_CC_CALLS; i++) { if (cc_call_is_active(i)) { TRACE_EVENT_P4 (" hold[%d] = %d, mpty[%d] = %d", cc_data->stored_ti_values[i], cc_data->hold_state[i], cc_data->stored_ti_values[i], cc_data->mpty_state[i]); } } #endif /* #ifndef NTRACE */ PFREE (mncc_sync_req); } /* +--------------------------------------------------------------------+ | PROJECT : GSM-PS (6147) MODULE : CC_ACT | | STATE : code ROUTINE : cc_mncc_status_res | +--------------------------------------------------------------------+ PURPOSE : Processing a MNCC_STATUS_RES primitive. There is an outstanding STATUS message which still has to be sent to the network after having received a STATUS ENQUIRY in U10. */ GLOBAL void cc_mncc_status_res (T_MNCC_STATUS_RES * mncc_status_res) { GET_INSTANCE_DATA; TRACE_FUNCTION ("cc_mncc_status_res()"); if ((cc_data->index_ti = srv_convert_ti (mncc_status_res->ti)) EQ NOT_PRESENT_8BIT) { PFREE (mncc_status_res); return; } switch (cc_data->state[cc_data->index_ti]) { case M_CC_CS_01: /* MM connection pending */ case CS_101: /* No network connection, reestablishment in progress */ case CS_261: break; default: /* Implements Measure# 3 and streamline encoding */ cc_send_status (M_CC_CAUSE_STATUS_ENQUIRY); break; } PFREE (mncc_status_res); } /* +--------------------------------------------------------------------+ | PROJECT : GSM-PS (6147) MODULE : CC_ACT | | STATE : code ROUTINE : cc_facility | +--------------------------------------------------------------------+ PURPOSE : Processing of an incoming facility message. */ GLOBAL void cc_facility (T_D_FACILITY * facility) { GET_INSTANCE_DATA; TRACE_FUNCTION ("cc_facility()"); /* * A facility message can be received in every state where CC has a * MM connection, no need to check states here. */ if (cc_check_error_flag ()) { cc_build_facility_ind (MNCC_FAC_IN_FACILITY, TRUE, &facility->facility); CCD_END; } EM_CC_FACILITY_FROM_THE_NETWORK; } /* +--------------------------------------------------------------------+ | PROJECT : GSM-PS (6147) MODULE : CC_ACT | | STATE : code ROUTINE : cc_hold_ack | +--------------------------------------------------------------------+ PURPOSE : Processing an incoming hold ack message. */ GLOBAL void cc_hold_ack (void) { GET_INSTANCE_DATA; CCD_END; TRACE_FUNCTION ("cc_hold_ack()"); switch (cc_data->state[cc_data->index_ti]) { /* * CS_0 is handled by the formatter */ case M_CC_CS_10: if (cc_check_error_flag ()) { if (cc_data->hold_state[cc_data->index_ti] EQ M_CC_HLD_HOLD_REQ) { PALLOC (hold_cnf, MNCC_HOLD_CNF); cc_data->hold_state[cc_data->index_ti] = M_CC_HLD_CALL_HELD; hold_cnf->ti = cc_data->ti; hold_cnf->cause = MNCC_CAUSE_HOLD_SUCCESS; PSENDX (MMI, hold_cnf); EM_CC_CALL_HOLD_ACKNOWLEDGE; } else { /* Implements Measure# 3 and streamline encoding */ cc_send_status (M_CC_CAUSE_MESSAGE_TYPE_INCOMPAT); } } break; default: /* Implements Measure# 3 and streamline encoding */ cc_send_status (M_CC_CAUSE_MESSAGE_TYPE_INCOMPAT); break; } } /* +--------------------------------------------------------------------+ | PROJECT : GSM-PS (6147) MODULE : CC_ACT | | STATE : code ROUTINE : cc_hold_rej | +--------------------------------------------------------------------+ PURPOSE : Processing an incoming hold rej message. */ GLOBAL void cc_hold_rej (T_D_HOLD_REJ * hold_rej) { GET_INSTANCE_DATA; TRACE_FUNCTION ("cc_hold_rej()"); switch (cc_data->state[cc_data->index_ti]) { /* * CS_0 is handled by the formatter */ case M_CC_CS_10: if (cc_data->hold_state[cc_data->index_ti] EQ M_CC_HLD_HOLD_REQ) { PALLOC (hold_cnf, MNCC_HOLD_CNF); cc_data->hold_state[cc_data->index_ti] = M_CC_HLD_IDLE; hold_cnf->ti = cc_data->ti; /* * It is possible for the network to send a REJ without a Cause IE. * This causes the decoder to flag a Madatory IE error. According to * 04.08 Sec: 8.5.3.e, the REJ should still be managed as if a correctly * formatted REJ had been received. */ if (!hold_rej->cc_cause.v_cause) { hold_cnf->cause = MNCC_CAUSE_NO_NET_CAUSE; } else { hold_cnf->cause = CAUSE_MAKE(DEFBY_STD, ORIGSIDE_NET, MNCC_CC_ORIGINATING_ENTITY, hold_rej->cc_cause.cause); } PSENDX (MMI, hold_cnf); srv_use_stored_prim (); EM_CC_CALL_HOLD_REJECT; CCD_END; } else { CCD_END; /* Implements Measure# 3 and streamline encoding */ cc_send_status (M_CC_CAUSE_MESSAGE_TYPE_INCOMPAT); } break; default: CCD_END; /* Implements Measure# 3 and streamline encoding */ cc_send_status (M_CC_CAUSE_MESSAGE_TYPE_INCOMPAT); break; } } /* +--------------------------------------------------------------------+ | PROJECT : GSM-PS (6147) MODULE : CC_ACT | | STATE : code ROUTINE : cc_retrieve_ack | +--------------------------------------------------------------------+ PURPOSE : Processing an incoming retrieve ack message. */ GLOBAL void cc_retrieve_ack (void) { GET_INSTANCE_DATA; TRACE_FUNCTION ("cc_retrieve_ack()"); switch (cc_data->state[cc_data->index_ti]) { /* * CS_0 is handled by the formatter */ case M_CC_CS_10: if (cc_check_error_flag ()) { CCD_END; if (cc_data->hold_state[cc_data->index_ti] EQ M_CC_HLD_RETRIEVE_REQ) { PALLOC (retrieve_cnf, MNCC_RETRIEVE_CNF); cc_data->hold_state[cc_data->index_ti] = M_CC_HLD_IDLE; retrieve_cnf->ti = cc_data->ti; retrieve_cnf->cause = MNCC_CAUSE_RETRIEVE_SUCCESS; PSENDX (MMI, retrieve_cnf); EM_CC_CALL_RETRIEVE_ACKNOWLEDGE; } else { /* Implements Measure# 3 and streamline encoding */ cc_send_status (M_CC_CAUSE_MESSAGE_TYPE_INCOMPAT); } } break; default: CCD_END; /* Implements Measure# 3 and streamline encoding */ cc_send_status (M_CC_CAUSE_MESSAGE_TYPE_INCOMPAT); break; } } /* +--------------------------------------------------------------------+ | PROJECT : GSM-PS (6147) MODULE : CC_ACT | | STATE : code ROUTINE : cc_retrieve_rej | +--------------------------------------------------------------------+ PURPOSE : Processing an incoming retrieve rej message. */ GLOBAL void cc_retrieve_rej (T_D_RETRIEVE_REJ * retrieve_rej) { GET_INSTANCE_DATA; TRACE_FUNCTION ("cc_retrieve_rej()"); switch (cc_data->state[cc_data->index_ti]) { /* * CS_0 is handled by the formatter */ case M_CC_CS_10: if (cc_data->hold_state[cc_data->index_ti] EQ M_CC_HLD_RETRIEVE_REQ) { PALLOC (retrieve_cnf, MNCC_RETRIEVE_CNF); cc_data->hold_state[cc_data->index_ti] = M_CC_HLD_CALL_HELD; retrieve_cnf->ti = cc_data->ti; /* * It is possible for the network to send a REJ without a Cause IE. * This causes the decoder to flag a Madatory IE error. According to * 04.08 Sec: 8.5.3.e, the REJ should still be managed as if a correctly * formatted REJ had been received. */ if (!retrieve_rej->cc_cause.v_cause) { retrieve_cnf->cause = MNCC_CAUSE_NO_NET_CAUSE; } else { retrieve_cnf->cause = CAUSE_MAKE(DEFBY_STD, ORIGSIDE_NET, MNCC_CC_ORIGINATING_ENTITY, retrieve_rej->cc_cause.cause); } PSENDX (MMI, retrieve_cnf); srv_use_stored_prim (); EM_CC_CALL_RETRIEVE_REJECT; CCD_END; } else { CCD_END; /* Implements Measure# 3 and streamline encoding */ cc_send_status (M_CC_CAUSE_MESSAGE_TYPE_INCOMPAT); } break; default: CCD_END; /* Implements Measure# 3 and streamline encoding */ cc_send_status (M_CC_CAUSE_MESSAGE_TYPE_INCOMPAT); break; } } /* +--------------------------------------------------------------------+ | PROJECT : GSM-PS (6147) MODULE : CC_ACT | | STATE : code ROUTINE : cc_congestion_control | +--------------------------------------------------------------------+ PURPOSE : Processing an incoming congestion control message. */ GLOBAL void cc_congestion_control (T_B_CONGEST_CTRL * cong) { GET_INSTANCE_DATA; TRACE_FUNCTION ("cc_congestion_control()"); switch (cc_data->state[cc_data->index_ti]) { /* * CS_0 is handled by the formatter */ case M_CC_CS_10: if (cc_check_error_flag ()) { PALLOC (user, MNCC_USER_IND); cc_build_user_ind_from_cong (user, cong); PSENDX (MMI, user); CCD_END; } break; default: CCD_END; /* Implements Measure# 3 and streamline encoding*/ cc_send_status (M_CC_CAUSE_MESSAGE_TYPE_INCOMPAT); break; } } /* +--------------------------------------------------------------------+ | PROJECT : GSM-PS (6147) MODULE : CC_ACT | | STATE : code ROUTINE : cc_user_information | +--------------------------------------------------------------------+ PURPOSE : Processing an incoming user information message. */ GLOBAL void cc_user_information ( T_B_USER_INFO * user) { GET_INSTANCE_DATA; TRACE_FUNCTION ("cc_user_information()"); switch (cc_data->state[cc_data->index_ti]) { /* * CS_0 is handled by the formatter */ case M_CC_CS_10: if (cc_check_error_flag ()) { PALLOC (user_ind, MNCC_USER_IND); cc_build_user_ind_from_user (user_ind, user); CCD_END; PSENDX (MMI, user_ind); EM_CC_USER_TO_USER_DATA_RECEIVED; } break; default: CCD_END; /* Implements Measure# 4 and streamline encoding*/ cc_send_status (M_CC_CAUSE_MESSAGE_TYPE_INCOMPAT); break; } } /* +--------------------------------------------------------------------+ | PROJECT : GSM-PS (6147) MODULE : CC_ACT | | STATE : code ROUTINE : cc_modify | +--------------------------------------------------------------------+ PURPOSE : Processing an incoming modify message. */ GLOBAL void cc_modify (T_B_MODIFY * modify) { GET_INSTANCE_DATA; TRACE_FUNCTION ("cc_modify()"); switch (cc_data->state[cc_data->index_ti]) { /* * CS_0 is handled by the formatter */ case M_CC_CS_10: if (cc_check_error_flag ()) { switch (cc_data->neg_ri) { case M_CC_REPEAT_CIRCULAR: if (cc_data->active_service EQ cc_data->neg_serv1) { if (cc_bcs_compatible (&modify->bearer_cap, &cc_data->neg_bc2, TRUE) EQ TRUE) { CCD_END; cc_mod_complete (); } else { CCD_END; cc_mod_reject (); } } else { if (cc_bcs_compatible (&modify->bearer_cap, &cc_data->neg_bc1, TRUE) EQ TRUE) { CCD_END; cc_mod_complete (); } else { CCD_END; cc_mod_reject (); } } break; #ifndef REL99 case M_CC_REPEAT_SEQUENTIAL: if (cc_data->active_service EQ cc_data->neg_serv1) { if (cc_bcs_compatible (&modify->bearer_cap, &cc_data->neg_bc2, TRUE) EQ TRUE) { CCD_END; cc_mod_complete (); } else { CCD_END; cc_mod_reject (); } } else { CCD_END; cc_mod_reject (); } break; #endif /* #ifndef REL99 */ default: CCD_END; cc_mod_reject (); break; } } break; default: CCD_END; /* Implements Measure# 5 and streamline encoding*/ cc_send_status (M_CC_CAUSE_MESSAGE_TYPE_INCOMPAT); break; } } /* +--------------------------------------------------------------------+ | PROJECT : GSM-PS (6147) MODULE : CC_ACT | | STATE : code ROUTINE : cc_mod_reject | +--------------------------------------------------------------------+ PURPOSE : Negative end of a mobile terminated in-call modification. */ GLOBAL void cc_mod_reject (void) { GET_INSTANCE_DATA; TRACE_FUNCTION ("cc_mod_reject()"); CCD_START; { MCAST (modify_rej, B_MODIFY_REJ); cc_build_modify_reject (modify_rej, CAUSE_MAKE(DEFBY_STD, ORIGSIDE_MS, MNCC_CC_ORIGINATING_ENTITY, M_CC_CAUSE_BEARER_CAP_AUTHORIZ)); for_modify_reject (modify_rej); } EM_CC_MT_IN_CALL_MODIFICATION_FAILED; CCD_END; } /* +--------------------------------------------------------------------+ | PROJECT : GSM-PS (6147) MODULE : CC_ACT | | STATE : code ROUTINE : cc_mod_complete | +--------------------------------------------------------------------+ PURPOSE : Positive end of a mobile terminated in-call modification. */ GLOBAL void cc_mod_complete (void) { GET_INSTANCE_DATA; TRACE_FUNCTION ("cc_mod_complete()"); CCD_START; { MCAST (modify_com, B_MODIFY_COMP); PALLOC (mod_ind, MNCC_MODIFY_IND); if (cc_data->active_service EQ cc_data->neg_serv1) cc_data->active_service = cc_data->neg_serv2; else cc_data->active_service = cc_data->neg_serv1; mod_ind->ti = cc_data->ti; mod_ind->serv = cc_data->active_service; PSENDX (MMI, mod_ind); EM_CC_MT_IN_CALL_MODIFICATION_PASSED; cc_build_modify_complete (modify_com); for_modify_complete (modify_com); } CCD_END; } /* +--------------------------------------------------------------------+ | PROJECT : GSM-PS (6147) MODULE : CC_ACT | | STATE : code ROUTINE : cc_modify_complete | +--------------------------------------------------------------------+ PURPOSE : Processing an incoming modify complete message. */ GLOBAL void cc_modify_complete ( T_B_MODIFY_COMP * mod_com) { GET_INSTANCE_DATA; TRACE_FUNCTION ("cc_modify_complete()"); switch (cc_data->state[cc_data->index_ti]) { /* * CS_0 is handled by the formatter */ case M_CC_CS_26: if (cc_check_error_flag ()) { if (cc_data->new_itc EQ mod_com->bearer_cap.trans_cap) { PALLOC (mod_cnf, MNCC_MODIFY_CNF); TIMERSTOP (TIMER_CC); if (cc_data->active_service EQ cc_data->serv1) cc_data->active_service = cc_data->serv2; else cc_data->active_service = cc_data->serv1; mod_cnf->ti = cc_data->ti; mod_cnf->cause = MNCC_CAUSE_MODIFY_SUCCESS; /* Setting raw_cause to empty as we are not sending any cause from network*/ mod_cnf->c_raw_cause = 0; EM_CC_MO_IN_CALL_MODIFICATION_PASSED; PSENDX (MMI, mod_cnf); cc_set_state (M_CC_CS_10); } CCD_END; } break; default: CCD_END; /* Implements Measure# 6 and streamline encoding*/ cc_send_status (M_CC_CAUSE_MESSAGE_TYPE_INCOMPAT); break; } } /* +--------------------------------------------------------------------+ | PROJECT : GSM-PS (6147) MODULE : CC_ACT | | STATE : code ROUTINE : cc_modify_reject | +--------------------------------------------------------------------+ PURPOSE : Processing an incoming modify reject message. */ GLOBAL void cc_modify_reject (T_B_MODIFY_REJ * mod_rej) { GET_INSTANCE_DATA; TRACE_FUNCTION ("cc_modify_reject()"); switch (cc_data->state[cc_data->index_ti]) { /* * CS_0 is handled by the formatter */ case M_CC_CS_26: if (cc_check_error_flag ()) { if (cc_data->old_itc EQ mod_rej->bearer_cap.trans_cap) { PALLOC (mod_cnf, MNCC_MODIFY_CNF); TIMERSTOP (TIMER_CC); mod_cnf->ti = cc_data->ti; /* * cause IE is mandatory and the check for presence has been done * already thus there is no need to check for validity of cause IE * here anymore */ mod_cnf->cause = CAUSE_MAKE(DEFBY_STD, ORIGSIDE_NET, MNCC_CC_ORIGINATING_ENTITY, mod_rej->cc_cause.cause); mod_cnf->c_raw_cause = cc_build_cause (&mod_rej->cc_cause, mod_cnf->raw_cause); PSENDX (MMI, mod_cnf); cc_set_state (M_CC_CS_10); } EM_CC_MO_IN_CALL_MODIFICATION_FAILED; CCD_END; } break; default: CCD_END; /* Implements Measure# 7 and streamline encoding*/ cc_send_status (M_CC_CAUSE_MESSAGE_TYPE_INCOMPAT); break; } } /* +--------------------------------------------------------------------+ | PROJECT : GSM-PS (6147) MODULE : CC_ACT | | STATE : code ROUTINE : cc_status | +--------------------------------------------------------------------+ PURPOSE : Processing an incoming status message. */ GLOBAL void cc_status (T_B_STATUS * status) { GET_INSTANCE_DATA; TRACE_FUNCTION ("cc_status()"); /* The cause is in STATUS a mandatory IE (given intact message) */ TRACE_EVENT_P1 ("STATUS cause: %02x", status->cc_cause.cause); switch (cc_data->state[cc_data->index_ti]) { case M_CC_CS_0: CCD_END; if (status->call_state.state NEQ M_CC_CS_0) { CCD_START; { MCAST (rel_com, U_RELEASE_COMP); cc_build_release_complete (rel_com, CAUSE_MAKE(DEFBY_STD, ORIGSIDE_MS, MNCC_CC_ORIGINATING_ENTITY, M_CC_CAUSE_MESSAGE_INCOMPAT)); for_release_complete (rel_com); } CCD_END; } for_rel_req (); break; case M_CC_CS_1: case M_CC_CS_3: case M_CC_CS_4: case M_CC_CS_6: case M_CC_CS_7: case M_CC_CS_8: case M_CC_CS_9: case M_CC_CS_10: case M_CC_CS_26: if (cc_check_error_flag ()) { /* check for incompatible state */ if (status->call_state.state NEQ cc_data->state[cc_data->index_ti]) { PALLOC (rel_ind, MNCC_RELEASE_IND); cc_reset_dtmf (); // China change HM 11.07.00 TIMERSTOP (TIMER_CC); rel_ind->ti = cc_data->ti; rel_ind->cause = CAUSE_MAKE(DEFBY_STD, ORIGSIDE_MS, MNCC_CC_ORIGINATING_ENTITY, M_CC_CAUSE_MESSAGE_INCOMPAT); rel_ind->c_raw_cause = 0; PSENDX (MMI, rel_ind); CCD_END; CCD_START; { MCAST (rel_com, U_RELEASE_COMP); cc_build_release_complete (rel_com, CAUSE_MAKE(DEFBY_STD, ORIGSIDE_MS, MNCC_CC_ORIGINATING_ENTITY, M_CC_CAUSE_MESSAGE_INCOMPAT)); for_release_complete (rel_com); } CCD_END; for_rel_req (); cc_set_state (M_CC_CS_0); } else /* * compatible, perform checks/ actions of 04.08, ch. 5.5.3.2.2; * Condat action (option!) is to initiate normal call clearing * (with DISCONNECT) */ { if ((status->cc_cause.cause >= M_CC_CAUSE_INCORRECT_MESSAGE) AND (status->cc_cause.cause <= M_CC_CAUSE_COND_INFO_ELEM)) { /* * Block entered for * CAUSE_INCORRECT_MESSAGE, CAUSE_INVALID_MAND_INFO, * CAUSE_MESSAGE_TYPE_NOT_IMPLEM, CAUSE_MESSAGE_TYPE_INCOMPAT, * CAUSE_INFO_ELEM_NOT_IMPLEM, CAUSE_COND_INFO_ELEM. (0x5f..0x64) */ if ((cc_data->state[cc_data->index_ti] EQ M_CC_CS_10) AND (cc_data->hold_state[cc_data->index_ti] EQ M_CC_HLD_HOLD_REQ)) { /* * Compatible state, last CC message was a hold request which is * not supported by the network. Handled like HOLD REJECT. */ PALLOC (hold_cnf, MNCC_HOLD_CNF); /* T_MNCC_HOLD_CNF */ cc_data->hold_state[cc_data->index_ti] = M_CC_HLD_IDLE; hold_cnf->ti = cc_data->ti; hold_cnf->cause = CAUSE_MAKE(DEFBY_STD, ORIGSIDE_NET, MNCC_CC_ORIGINATING_ENTITY, status->cc_cause.cause); PSENDX (MMI, hold_cnf); CCD_END; srv_use_stored_prim (); } else if (status->cc_cause.cause NEQ M_CC_CAUSE_INFO_ELEM_NOT_IMPLEM) { /* * Compatible state, special condition for HOLD REQUEST not met. * The network is also not complaining about an optional * information element which can be simply ignored. * Disconnect the call. */ PALLOC (disc_ind, MNCC_DISCONNECT_IND); TIMERSTOP (TIMER_CC); disc_ind->ti = cc_data->ti; disc_ind->cause = CAUSE_MAKE(DEFBY_STD, ORIGSIDE_NET, MNCC_CC_ORIGINATING_ENTITY, status->cc_cause.cause); disc_ind->c_raw_cause = cc_build_cause (&status->cc_cause, disc_ind->raw_cause); disc_ind->diagnostic = NOT_PRESENT_8BIT; disc_ind->progress_desc = MNCC_PROG_NOT_PRES; PSENDX (MMI, disc_ind); CCD_END; CCD_START; { MCAST (disconnect, U_DISCONNECT); cc_build_disconnect (disconnect, CAUSE_MAKE(DEFBY_STD, ORIGSIDE_MS, MNCC_CC_ORIGINATING_ENTITY, M_CC_CAUSE_CALL_CLEAR), NULL, MNCC_SS_VER_NOT_PRES); for_disconnect (disconnect); } TIMERSTART (T305, T305_VALUE); cc_set_state (M_CC_CS_11); } } else { /* * STATUS message but neither incompatible state nor indicating * incorrect message / IE; check if we received a STATUS with cause * "message not compatible with protocol state". GSM 04.08 does not * define what to do and also does not define that this case has to * be handled at all; * Condat (HM) decided to "clear DTMF" if it was running to try to * recover from the misaligned states scenario. */ T_DTMF *p_dtmf; p_dtmf = &cc_data->dtmf[cc_data->index_ti]; if ((p_dtmf->state EQ DTMF_SEND_REQUEST) AND (status->cc_cause.cause EQ M_CC_CAUSE_MESSAGE_INCOMPAT)) { /* Send negative acknowledge for DTMF send request to MMI */ PALLOC (mncc_start_dtmf_cnf, MNCC_START_DTMF_CNF); mncc_start_dtmf_cnf->ti = cc_data->ti; mncc_start_dtmf_cnf->key = NOT_PRESENT_8BIT; mncc_start_dtmf_cnf->dtmf_mod = NOT_PRESENT_8BIT; mncc_start_dtmf_cnf->cause = CAUSE_MAKE(DEFBY_STD, ORIGSIDE_NET, MNCC_CC_ORIGINATING_ENTITY, M_CC_CAUSE_MESSAGE_INCOMPAT); PSENDX (MMI, mncc_start_dtmf_cnf); } /* Bring screwed up network back to work */ for_stop_dtmf (); /* Reset screwed up DTMF state machine */ p_dtmf->state = DTMF_IDLE; p_dtmf->read = 0; p_dtmf->write = 0; } CCD_END; } } break; case M_CC_CS_11: case M_CC_CS_12: if (cc_check_error_flag ()) { if (status->call_state.state NEQ cc_data->state[cc_data->index_ti]) { /* * STATUS message with incompatible state * On receipt of a STATUS message reporting an incompatible call * control state, the receiving entity shall clear the call by * sending a RELEASE COMPLETE message with cause # 101 "message * not compatible with protocol state". The reported call control * state is incompatible if the combination of call control states * at the sender and receiver side cannot occur, do not match or cannot * be aligned by actions of the receiver; the exact definition is * implementation dependent. [04.08 clause 5.5.3.2.1] */ cc_reset_dtmf (); TIMERSTOP (TIMER_CC); /* Send MNCC_RELEASE_IND to MMI */ { PALLOC (rel_ind, MNCC_RELEASE_IND); /* T_MNCC_RELEASE_IND */ rel_ind->ti = cc_data->ti; rel_ind->cause = CAUSE_MAKE(DEFBY_STD, ORIGSIDE_MS, MNCC_CC_ORIGINATING_ENTITY, M_CC_CAUSE_MESSAGE_INCOMPAT); rel_ind->c_raw_cause = 0; PSENDX (MMI, rel_ind); } CCD_END; CCD_START; { MCAST (rel_com, U_RELEASE_COMP); /* T_U_RELEASE_COMP */ cc_build_release_complete (rel_com, CAUSE_MAKE(DEFBY_STD, ORIGSIDE_MS, MNCC_CC_ORIGINATING_ENTITY, M_CC_CAUSE_MESSAGE_INCOMPAT)); for_release_complete (rel_com); for_rel_req (); cc_set_state (M_CC_CS_0); } } CCD_END; } break; case M_CC_CS_19: if (cc_check_error_flag ()) { if (status->call_state.state NEQ cc_data->state[cc_data->index_ti]) { TIMERSTOP (TIMER_CC); cc_reset_dtmf (); { PALLOC (rel_cnf, MNCC_RELEASE_CNF); /* T_MNCC_RELEASE_CNF */ rel_cnf->ti = cc_data->ti; rel_cnf->cause = CAUSE_MAKE(DEFBY_STD, ORIGSIDE_MS, MNCC_CC_ORIGINATING_ENTITY, M_CC_CAUSE_MESSAGE_INCOMPAT); /* Setting raw_cause to empty as this is a local release * of MM connection,CC is not receiving any cause value * from Network */ rel_cnf->c_raw_cause = 0; PSENDX (MMI, rel_cnf); } CCD_END; CCD_START; { MCAST (rel_com, U_RELEASE_COMP); /* T_U_RELEASE_COMP */ cc_build_release_complete (rel_com, CAUSE_MAKE(DEFBY_STD, ORIGSIDE_MS, MNCC_CC_ORIGINATING_ENTITY, M_CC_CAUSE_MESSAGE_INCOMPAT)); for_release_complete (rel_com); for_rel_req (); cc_set_state (M_CC_CS_0); } } CCD_END; } break; default: CCD_END; break; } EM_CC_STATUS_RECEIVED; } /* +--------------------------------------------------------------------+ | PROJECT : GSM-PS (6147) MODULE : CC_ACT | | STATE : code ROUTINE : cc_status_enquiry | +--------------------------------------------------------------------+ PURPOSE : Processing an incoming status enquiry message. */ GLOBAL void cc_status_enquiry (void) { GET_INSTANCE_DATA; TRACE_FUNCTION ("cc_status_enquiry()"); /* * CS_0 is handled by the formatter */ switch (cc_data->state[cc_data->index_ti]) { case M_CC_CS_10: /* * Ensure synchronization of auxiliary states with ACI. */ if (cc_check_error_flag ()) { CCD_END; { PALLOC (mncc_status_ind, MNCC_STATUS_IND); mncc_status_ind->ti = cc_data->ti; PSENDX (MMI, mncc_status_ind); } EM_CC_STATUS_ENQUIRY_RECEIVED; } break; default: /* * No auxiliary states in non-active states. Immediate response is safe. */ if (cc_check_error_flag ()) { CCD_END; /* EM call moved above cc_send_status should not have any impact */ EM_CC_STATUS_ENQUIRY_RECEIVED; /* Implements Measure# 7 and streamline encoding*/ cc_send_status (M_CC_CAUSE_STATUS_ENQUIRY); } break; } } /* +--------------------------------------------------------------------+ | PROJECT : GSM-PS (6147) MODULE : CC_ACT | | STATE : code ROUTINE : cc_unknown_message | +--------------------------------------------------------------------+ PURPOSE : Processing of an incoming unknown message. */ GLOBAL void cc_unknown_message (void) { CCD_END; CCD_START; { MCAST (status, B_STATUS); TRACE_FUNCTION ("cc_unknown_message()"); cc_build_status (status, CAUSE_MAKE(DEFBY_STD, ORIGSIDE_MS, MNCC_CC_ORIGINATING_ENTITY, M_CC_CAUSE_MESSAGE_TYPE_NOT_IMPLEM)); for_status (status); } CCD_END; } /* Implements Measure# 18 */ /* +--------------------------------------------------------------------+ | PROJECT : GSM-PS (6147) MODULE : CC_ACT | | STATE : code ROUTINE : cc_mncc_hold_retrieve_req | +--------------------------------------------------------------------+ PURPOSE : Send hold REQ/retrieve REQ. */ LOCAL void cc_mncc_hold_retrieve_req (T_PRIM * prim) { GET_INSTANCE_DATA; UBYTE ti; TRACE_FUNCTION ("cc_mncc_hold_retrieve_req()"); if(prim->custom.opc EQ MNCC_HOLD_REQ) { ti = ((T_MNCC_HOLD_REQ *)P2D(prim))->ti; } else { ti = ((T_MNCC_RETRIEVE_REQ *)P2D(prim))->ti; } if ((cc_data->index_ti = srv_convert_ti (ti)) EQ NOT_PRESENT_8BIT) { PFREE (P2D(prim)); return; } switch (cc_data->state[cc_data->index_ti]) { case M_CC_CS_10: if(prim->custom.opc EQ MNCC_HOLD_REQ) { /* We should think about storing the hold request until DTMF idle state reached. ... This causes some other changes, we have to add some calls to serv_use_stored_prim() at some places after state transition of the DTMF state machine to DTMF idle.*/ cc_data->hold_state[cc_data->index_ti] = M_CC_HLD_HOLD_REQ; for_hold (); EM_CC_CALL_HOLD; } else { cc_data->hold_state[cc_data->index_ti] = M_CC_HLD_RETRIEVE_REQ; for_retrieve (); EM_CC_CALL_RETRIEVE; } PFREE (P2D(prim)); break; case CS_101: case M_CC_CS_26: case CS_261: srv_store_prim (prim); break; default: PFREE (P2D(prim)); break; } } #endif