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comparison src/g23m-gprs/grr/grr_pgs.c @ 183:219afcfc6250

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src/g23m-gprs: initial import from TCS3.2/LoCosto
author Mychaela Falconia <falcon@freecalypso.org>
date Thu, 13 Oct 2016 04:24:13 +0000
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182:f02d0a0e1849 183:219afcfc6250
1 /*
2 +-----------------------------------------------------------------------------
3 | Project : GPRS (8441)
4 | Modul : GRR
5 +-----------------------------------------------------------------------------
6 | Copyright 2002 Texas Instruments Berlin, AG
7 | All rights reserved.
8 |
9 | This file is confidential and a trade secret of Texas
10 | Instruments Berlin, AG
11 | The receipt of or possession of this file does not convey
12 | any rights to reproduce or disclose its contents or to
13 | manufacture, use, or sell anything it may describe, in
14 | whole, or in part, without the specific written consent of
15 | Texas Instruments Berlin, AG.
16 +-----------------------------------------------------------------------------
17 | Purpose : This module implements signal handler functions for service
18 | PG of entity GRR.
19 +-----------------------------------------------------------------------------
20 */
21
22 #ifndef GRR_PGS_C
23 #define GRR_PGS_C
24 #endif
25
26 #define ENTITY_GRR
27
28 /*==== INCLUDES =============================================================*/
29
30 #include "typedefs.h" /* to get Condat data types */
31
32 #include "vsi.h" /* to get a lot of macros */
33 #include "macdef.h"
34 #include "gprs.h"
35 #include "gsm.h" /* to get a lot of macros */
36 #include "ccdapi.h" /* to get CCD API */
37 #include "cnf_grr.h" /* to get cnf-definitions */
38 #include "mon_grr.h" /* to get mon-definitions */
39 #include "prim.h" /* to get the definitions of used SAP and directions */
40 #include "message.h"
41 #include "grr.h" /* to get the global entity definitions */
42
43
44 #include "grr_ctrls.h" /* */
45
46 #include "grr_f.h" /* to get the global functions */
47 #include "grr_pgf.h" /* */
48
49
50 /*==== CONST ================================================================*/
51
52 /*==== LOCAL VARS ===========================================================*/
53
54 /*==== PRIVATE FUNCTIONS ====================================================*/
55
56 /*==== PUBLIC FUNCTIONS =====================================================*/
57 /*
58 +------------------------------------------------------------------------------
59 | Function : sig_ctrl_pg_start
60 +------------------------------------------------------------------------------
61 | Description : Handles the internal signal SIG_CTRL_PG_START
62 | PG has to manage the paging procedures according to network mode
63 | and presence of PBCCH channel
64 | Parameters : void
65 |
66 +------------------------------------------------------------------------------
67 */
68 GLOBAL void sig_ctrl_pg_start ( void )
69 {
70 TRACE_ISIG( "sig_ctrl_pg_start" );
71
72 switch( GET_STATE( PG ) )
73 {
74 case PG_TRANSFER:
75 TRACE_ERROR("SIG_CTRL_PG_START not expected in transfer mode");
76 break;
77 case PG_NULL:
78 SET_STATE(PG, PG_IDLE);
79
80 /*lint -fallthrough*/
81
82 default:
83 /* Because of having new cell or new PPCH */
84 psc_db->last_pg_mode = psc_db->network_pg_mode = REORG_PAGING;
85
86 pg_handle_idle_mode( NULL_IDLE );
87 break;
88 }
89
90 } /* sig_ctrl_pg_start() */
91
92 /*
93 +------------------------------------------------------------------------------
94 | Function : sig_ctrl_pg_stop
95 +------------------------------------------------------------------------------
96 | Description : Handles the internal signal SIG_CTRL_PG_STOP
97 |
98 | Parameters : void
99 |
100 +------------------------------------------------------------------------------
101 */
102 GLOBAL void sig_ctrl_pg_stop ( void )
103 {
104 TRACE_ISIG( "sig_ctrl_pg_stop" );
105
106 grr_data->pg.packet_mode = PACKET_MODE_NULL;
107 SET_STATE(PG,PG_NULL);
108 pg_send_stop();
109 psc_db->last_pg_mode = psc_db->network_pg_mode = REORG_PAGING;
110 } /* sig_ctrl_pg_stop() */
111
112
113
114 /*
115 +------------------------------------------------------------------------------
116 | Function : sig_ctrl_pg_mode_ind
117 +------------------------------------------------------------------------------
118 | Description : Handles the internal signal SIG_CTRL_PG_MODE_IND
119 This signal indicates whether the MS is in idle, transfer or access mode
120 |
121 | Parameters : packet_mode
122 |
123 +------------------------------------------------------------------------------
124 */
125 GLOBAL void sig_ctrl_pg_mode_ind ( T_PACKET_MODE packet_mode)
126 {
127 T_PACKET_MODE old_packet_mode;
128
129 TRACE_ISIG( "sig_ctrl_pg_mode_ind" );
130
131 old_packet_mode = grr_data->pg.packet_mode;
132 grr_data->pg.packet_mode = packet_mode;
133
134 switch( GET_STATE( PG ) )
135 {
136 case PG_IDLE:
137 switch( packet_mode )
138 {
139 case PACKET_MODE_PTM:
140 SET_STATE( PG, PG_TRANSFER );
141
142 pg_handle_transfer_mode( IDLE_PTM );
143 break;
144
145 case PACKET_MODE_PAM:
146 SET_STATE( PG, PG_ACCESS );
147
148 pg_handle_access_mode( );
149 break;
150
151 default:
152 break;
153 }
154 break;
155
156 case PG_TRANSFER:
157 switch( packet_mode )
158 {
159 case PACKET_MODE_PAM:
160 SET_STATE( PG, PG_ACCESS );
161
162 pg_handle_access_mode( );
163 break;
164
165 case PACKET_MODE_PIM:
166 SET_STATE( PG, PG_IDLE );
167
168 pg_handle_non_drx_timers( );
169 pg_handle_idle_mode( PTM_IDLE );
170 break;
171
172 case PACKET_MODE_PTM:
173 //TODOif( grr_test_mode_active( ) )
174 {
175 sig_pg_ctrl_stop_mon_ccch( );
176 }
177 break;
178 }
179 break;
180
181 case PG_ACCESS:
182 switch( packet_mode )
183 {
184 case PACKET_MODE_PAM:
185 if( old_packet_mode EQ PACKET_MODE_2P_PTM )
186 {
187 TRACE_EVENT( "PACKET_MODE_2P_PTM --> PACKET_MODE_PAM" );
188
189 pg_handle_access_mode( );
190 }
191 break;
192
193 case PACKET_MODE_2P_PTM:
194 /*
195 * Do not change the state to PG_TRANSFER because of transition rule
196 */
197 TRACE_EVENT( "PACKET_MODE_2P_PTM in PG_ACCESS" );
198
199 pg_handle_transfer_mode( ACCESS_PTM );
200 break;
201
202 case PACKET_MODE_PIM:
203 SET_STATE( PG, PG_IDLE );
204
205 pg_handle_idle_mode( ACCESS_IDLE );
206 break;
207
208 case PACKET_MODE_PTM:
209 SET_STATE( PG, PG_TRANSFER );
210
211 pg_handle_transfer_mode( ACCESS_PTM );
212 break;
213 }
214 break;
215
216 default:
217 TRACE_ERROR( "SIG_CTRL_PG_MODE_IND unexpected" );
218 break;
219 }
220 }/* sig_ctrl_pg_mode_ind() */
221
222 /*
223 +------------------------------------------------------------------------------
224 | Function : sig_ctrl_pg_t3172_run
225 +------------------------------------------------------------------------------
226 | Description : Handles the internal signal SIG_CTRL_PG_T3172_RUN
227 |
228 | Parameters : void
229 |
230 +------------------------------------------------------------------------------
231 */
232 GLOBAL void sig_ctrl_pg_t3172_run ( void)
233 {
234 TRACE_ISIG( "sig_ctrl_pg_t3172_run" );
235
236 } /* sig_ctrl_pg_t3172_run() */
237
238
239 /*
240 +------------------------------------------------------------------------------
241 | Function : sig_ctrl_pg_indication
242 +------------------------------------------------------------------------------
243 | Description : Handles the internal signal SIG_CTRL_PG_INDICATION. This
244 | signal indicates paging for packet access
245 |
246 | Parameters : UBYTE paging_type (IMSI or PTMSI(GPRS TMSI))
247 |
248 +------------------------------------------------------------------------------
249 */
250 GLOBAL void sig_ctrl_pg_indication ( UBYTE paging_type )
251 {
252 UBYTE type;
253
254 TRACE_ISIG( "sig_ctrl_pg_indication" );
255
256 type = (paging_type EQ RRGRR_IMSI)? GMMRR_IMSI: GMMRR_PTMSI;
257
258 switch( GET_STATE( PG ) )
259 {
260 case PG_IDLE:
261 sig_pg_ctrl_downlink_transfer ( type );
262 break;
263 case PG_ACCESS:
264 /* ignore PAGING REQUEST messages indicating a packet paging procedure*/
265 break;
266 default:
267 TRACE_ERROR( "SIG_CTRL_PG_INDICATION unexpected" );
268 break;
269 }
270 } /* sig_ctrl_pg_indication() */
271
272 /*
273 +------------------------------------------------------------------------------
274 | Function : sig_ctrl_pg_rr_est
275 +------------------------------------------------------------------------------
276 | Description : Handles the internal signal SIG_CTRL_PG_RR_EST. This
277 | signal indicates paging for RR connection.
278 | This signal makes no sense in case of Class C mobile
279 |
280 | Parameters : no parameters
281 |
282 +------------------------------------------------------------------------------
283 */
284 GLOBAL void sig_ctrl_pg_rr_est ( void)
285 {
286
287 TRACE_ISIG( "sig_ctrl_pg_rr_est" );
288
289 if(grr_data->ms.class_of_mode EQ GMMRR_CLASS_CG)
290 {
291 TRACE_ERROR("CLASS_CG MS has received a RR_EST ");
292 }
293 else
294 {
295 switch( GET_STATE( PG ) )
296 {
297 case PG_NULL:
298 case PG_IDLE:
299 case PG_ACCESS:
300 /* inform CTRL resp. GMM about the RR connection establishment request:
301 * GMM has to decide whether accept the request or not
302 */
303 sig_pg_ctrl_rr_est_req(PG_ON_CCCH);
304 break;
305 case PG_TRANSFER:
306 if(grr_data->pg.nmo EQ GMMRR_NET_MODE_II)
307 {
308 TRACE_EVENT(" CS call in GMMRR_NET_MODE_II transfer mode");
309 sig_pg_ctrl_rr_est_req(PG_ON_CCCH);
310 }
311 else
312 {
313 TRACE_EVENT_P1("CS call in transfer mode NMO_%d", grr_data->pg.nmo+1);
314 }
315 break;
316 default:
317 TRACE_ERROR( "SIG_CTRL_PG_RR_EST unexpected" );
318 break;
319 }
320 }
321 } /* sig_ctrl_pg_indication() */
322
323
324
325 /*
326 +------------------------------------------------------------------------------
327 | Function : sig_gfp_pg_req
328 +------------------------------------------------------------------------------
329 | Description : Handles
330 |
331 | Parameters : void
332 |
333 +------------------------------------------------------------------------------
334 */
335 GLOBAL void sig_gfp_pg_req ( void )
336 {
337 MCAST( d_paging_req, D_PAGING_REQ );
338
339 UBYTE state = GET_STATE( PG );
340
341 TRACE_ISIG( "sig_gfp_pg_req" );
342
343 switch( state )
344 {
345 case PG_IDLE:
346 case PG_TRANSFER:
347 case PG_ACCESS:
348 pg_process_pp_req( d_paging_req, state );
349 break;
350 default:
351 TRACE_ERROR( "sig_gfp_pg_req: page mode has no meaning in this state" );
352 break;
353 }
354 } /* sig_gfp_pg_req() */
355
356 /*
357 +------------------------------------------------------------------------------
358 | Function : sig_gfp_pg_mode
359 +------------------------------------------------------------------------------
360 | Description : Handles
361 |
362 | Parameters : UBYTE page_mode: requested page mode
363 | BOOL ms_paging_group: paging belongs to MS paging group
364 |
365 +------------------------------------------------------------------------------
366 */
367 GLOBAL void sig_gfp_pg_mode ( UBYTE page_mode, BOOL ms_paging_group )
368 {
369 TRACE_ISIG( "sig_gfp_pg_mode" );
370
371 if( ms_paging_group )
372 {
373 switch( GET_STATE( PG ) )
374 {
375 case PG_IDLE:
376 if( page_mode NEQ SAME_PAGING )
377 {
378 psc_db->network_pg_mode = page_mode;
379 }
380
381 if( grr_is_non_drx_period( ) EQ FALSE AND
382 psc_db->last_pg_mode NEQ psc_db->network_pg_mode )
383 {
384 /*
385 * To ensure that the paging mode is not set to page normal in other states
386 * than packet idle mode, the function grr_is_packet_idle_mode is called in
387 * advance.
388 *
389 * State PG_IDLE not necessarily means that GRR is in packet idle mode. In
390 * case GRR is currently executing the RRGRR_STOP_TASK_REQ/CNF procedure,
391 * just the services CPAP and TC changes their states. All other services
392 * remain in state IDLE, which is not quite correct. A similar scenario
393 * occurs during execution of the MPHP_ASSIGNMENT_REQ/CON procedure.
394 */
395 if( grr_is_packet_idle_mode( ) EQ TRUE )
396 {
397 pg_send_start( psc_db->network_pg_mode );
398 }
399 else
400 {
401 TRACE_EVENT( "sig_gfp_pg_mode: Page mode set by next packet idle mode" );
402 }
403 }
404 break;
405
406 case PG_ACCESS:
407 if( page_mode NEQ SAME_PAGING )
408 {
409 psc_db->network_pg_mode = page_mode;
410 }
411 break;
412
413 default:
414
415 #ifdef _SIMULATION_
416
417 TRACE_ERROR( "SIG_GFP_PG_MODE unexpected" );
418
419 #endif /* #ifdef _SIMULATION_ */
420
421 break;
422 }
423 }
424 } /* sig_gfp_pg_mode() */
425
426 /*
427 +------------------------------------------------------------------------------
428 | Function : sig_gfp_pg_stop_pccch_con
429 +------------------------------------------------------------------------------
430 | Description : Handles the internal signal SIG_GFP_PG_STOP_PCCCH_CON
431 |
432 | Parameters : mphp_stop_pccch_con: pointer to T_MPHP_STOP_PCCCH_CON
433 |
434 +------------------------------------------------------------------------------
435 */
436 GLOBAL void sig_gfp_pg_stop_pccch_con ( T_MPHP_STOP_PCCCH_CON *mphp_stop_pccch_con)
437 {
438 TRACE_ISIG( "sig_gfp_pg_stop_pccch_con" );
439 } /* sig_gfp_pg_stop_pccch_con() */
440
441 /*
442 +------------------------------------------------------------------------------
443 | Function : sig_cs_pg_start_t_nc2_ndrx
444 +------------------------------------------------------------------------------
445 | Description : Handles the internal signal SIG_CS_PG_START_NC2_NDRX
446 |
447 | Parameters : void
448 |
449 +------------------------------------------------------------------------------
450 */
451 GLOBAL void sig_cs_pg_start_t_nc2_ndrx ( UBYTE nc_non_drx_period )
452 {
453 TRACE_ISIG( "sig_cs_pg_start_t_nc2_ndrx" );
454
455 pg_start_t_nc2_ndrx( nc_non_drx_period );
456
457 } /* sig_cs_pg_start_t_nc2_ndrx() */