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comparison src/g23m-gprs/sm/sm_user_plane_control.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 | Project : 3G PS
3 | Module : SM
4 +-----------------------------------------------------------------------------
5 | Copyright 2003 Texas Instruments.
6 | All rights reserved.
7 |
8 | This file is confidential and a trade secret of Texas
9 | Instruments .
10 | The receipt of or possession of this file does not convey
11 | any rights to reproduce or disclose its contents or to
12 | manufacture, use, or sell anything it may describe, in
13 | whole, or in part, without the specific written consent of
14 | Texas Instruments.
15 +-----------------------------------------------------------------------------
16 | Purpose: User Plane Control state machine implementation in the SM entity.
17 | For design details, see:
18 | 8010.908 SM Detailed Specification
19 +---------------------------------------------------------------------------*/
20
21 /*==== DECLARATION CONTROL =================================================*/
22
23 /*==== INCLUDES =============================================================*/
24
25 #include "sm.h"
26
27 #include "sm_user_plane_control.h"
28 #include "sm_context_control.h"
29
30 #include "sm_upm_output_handler.h"
31
32 /*==== CONSTS ===============================================================*/
33
34 /*==== TYPES ================================================================*/
35
36 typedef void (*T_SM_USER_PLANE_CONTROL_TRANSITION_FUNC)(struct T_SM_CONTEXT_DATA *ptr_context_data, /*@null@*/ void *data);
37
38 typedef struct {
39 #ifdef DEBUG
40 T_SM_USER_PLANE_CONTROL_EVENT event;
41 #endif /* DEBUG */
42 T_SM_USER_PLANE_CONTROL_TRANSITION_FUNC func;
43 } T_SM_USER_PLANE_CONTROL_TRANSITION;
44
45 /*==== LOCALS ===============================================================*/
46
47 static void state_event_error(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data);
48 static void ignored (struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data);
49 static void handle_activate_start(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data);
50 static void handle_activate_complete(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data);
51 static void handle_deactivate(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data);
52 static void handle_deactivate_local(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data);
53 static void handle_modify(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data);
54 static void handle_sm_activate_res(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data);
55 static void handle_sm_deactivate_res(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data);
56 static void handle_sm_modify_res(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data);
57
58 /***********************************************************************
59 * State/Transition Table
60 */
61 static const T_SM_USER_PLANE_CONTROL_TRANSITION
62 transition[SM_USER_PLANE_CONTROL_NUMBER_OF_STATES][SM_USER_PLANE_CONTROL_NUMBER_OF_EVENTS] =
63 {
64 { /* S0: SM USER PLANE DEACTIVATED */
65 M_TRANSITION(SM_P_SM_ACTIVATE_RES, state_event_error),
66 M_TRANSITION(SM_P_SM_DEACTIVATE_RES, ignored),
67 M_TRANSITION(SM_P_SM_MODIFY_RES, state_event_error),
68 M_TRANSITION(SM_I_USER_PLANE_ACTIVATE_START, handle_activate_start),
69 M_TRANSITION(SM_I_USER_PLANE_ACTIVATE_COMPLETE, state_event_error),
70 M_TRANSITION(SM_I_USER_PLANE_DEACTIVATE_LOCAL, ignored),
71 M_TRANSITION(SM_I_USER_PLANE_MODIFY, state_event_error),
72 M_TRANSITION(SM_I_USER_PLANE_DEACTIVATE, ignored)
73 },
74 { /* S1: SM USER PLANE ACTIVATE STARTED */
75 M_TRANSITION(SM_P_SM_ACTIVATE_RES, state_event_error),
76 M_TRANSITION(SM_P_SM_DEACTIVATE_RES, state_event_error),
77 M_TRANSITION(SM_P_SM_MODIFY_RES, state_event_error),
78 M_TRANSITION(SM_I_USER_PLANE_ACTIVATE_START, state_event_error),
79 M_TRANSITION(SM_I_USER_PLANE_ACTIVATE_COMPLETE, handle_activate_complete),
80 M_TRANSITION(SM_I_USER_PLANE_DEACTIVATE_LOCAL, handle_deactivate_local),
81 M_TRANSITION(SM_I_USER_PLANE_MODIFY, state_event_error),
82 M_TRANSITION(SM_I_USER_PLANE_DEACTIVATE, handle_deactivate)
83 },
84 { /* S2: SM USER PLANE ACTIVATE COMPLETING */
85 M_TRANSITION(SM_P_SM_ACTIVATE_RES, handle_sm_activate_res),
86 M_TRANSITION(SM_P_SM_DEACTIVATE_RES, state_event_error),
87 M_TRANSITION(SM_P_SM_MODIFY_RES, state_event_error),
88 M_TRANSITION(SM_I_USER_PLANE_ACTIVATE_START, state_event_error),
89 M_TRANSITION(SM_I_USER_PLANE_ACTIVATE_COMPLETE, state_event_error),
90 M_TRANSITION(SM_I_USER_PLANE_DEACTIVATE_LOCAL, handle_deactivate_local),
91 M_TRANSITION(SM_I_USER_PLANE_MODIFY, state_event_error),
92 M_TRANSITION(SM_I_USER_PLANE_DEACTIVATE, handle_deactivate)
93 },
94 { /* S3: SM USER PLANE ACTIVATED */
95 M_TRANSITION(SM_P_SM_ACTIVATE_RES, state_event_error),
96 M_TRANSITION(SM_P_SM_DEACTIVATE_RES, state_event_error),
97 M_TRANSITION(SM_P_SM_MODIFY_RES, state_event_error),
98 M_TRANSITION(SM_I_USER_PLANE_ACTIVATE_START, state_event_error),
99 M_TRANSITION(SM_I_USER_PLANE_ACTIVATE_COMPLETE, state_event_error),
100 M_TRANSITION(SM_I_USER_PLANE_DEACTIVATE_LOCAL, handle_deactivate_local),
101 M_TRANSITION(SM_I_USER_PLANE_MODIFY, handle_modify),
102 M_TRANSITION(SM_I_USER_PLANE_DEACTIVATE, handle_deactivate)
103 },
104 { /* S4: SM USER PLANE MODIFYING */
105 M_TRANSITION(SM_P_SM_ACTIVATE_RES, state_event_error),
106 M_TRANSITION(SM_P_SM_DEACTIVATE_RES, state_event_error),
107 M_TRANSITION(SM_P_SM_MODIFY_RES, handle_sm_modify_res),
108 M_TRANSITION(SM_I_USER_PLANE_ACTIVATE_START, state_event_error),
109 M_TRANSITION(SM_I_USER_PLANE_ACTIVATE_COMPLETE, state_event_error),
110 M_TRANSITION(SM_I_USER_PLANE_DEACTIVATE_LOCAL, handle_deactivate_local),
111 M_TRANSITION(SM_I_USER_PLANE_MODIFY, state_event_error),
112 M_TRANSITION(SM_I_USER_PLANE_DEACTIVATE, handle_deactivate)
113 },
114 { /* S5: SM USER PLANE DEACTIVATING */
115 M_TRANSITION(SM_P_SM_ACTIVATE_RES, state_event_error),
116 M_TRANSITION(SM_P_SM_DEACTIVATE_RES, handle_sm_deactivate_res),
117 M_TRANSITION(SM_P_SM_MODIFY_RES, state_event_error),
118 M_TRANSITION(SM_I_USER_PLANE_ACTIVATE_START, state_event_error),
119 M_TRANSITION(SM_I_USER_PLANE_ACTIVATE_COMPLETE, state_event_error),
120 M_TRANSITION(SM_I_USER_PLANE_DEACTIVATE_LOCAL, handle_deactivate_local),
121 M_TRANSITION(SM_I_USER_PLANE_MODIFY, state_event_error),
122 M_TRANSITION(SM_I_USER_PLANE_DEACTIVATE, ignored)
123 }
124 };
125
126 /*==== PRIVATE FUNCTIONS ====================================================*/
127
128 /*
129 +------------------------------------------------------------------------------
130 | Function : state_event_error
131 +------------------------------------------------------------------------------
132 | Description : General function used to report state event errors.
133 |
134 | Parameters : context - Not used
135 | data - Not used
136 +------------------------------------------------------------------------------
137 */
138 static void state_event_error(/*@unused@*/ struct T_SM_CONTEXT_DATA *context, /*@unused@*/ /*@null@*/ void *data)
139 {
140 (void)TRACE_ERROR("SM User Plane Control: STATE EVENT ERROR!");
141 }
142
143 /*
144 +------------------------------------------------------------------------------
145 | Function : ignored
146 +------------------------------------------------------------------------------
147 | Description : General function used for transitions that shall be ignored
148 |
149 | Parameters : context - Not used
150 | data - Not used
151 +------------------------------------------------------------------------------
152 */
153 static void ignored(/*@unused@*/ struct T_SM_CONTEXT_DATA *context, /*@unused@*/ /*@null@*/ void *data)
154 {
155 (void)TRACE_FUNCTION("SM User Plane Control: Event ignored.");
156 }
157
158 /*
159 +------------------------------------------------------------------------------
160 | Function : handle_activate_start
161 +------------------------------------------------------------------------------
162 | Description : Handle event SM_I_USER_PLANE_ACTIVATE_START in S0
163 |
164 | Parameters : context - Context data
165 | data - Not used
166 +------------------------------------------------------------------------------
167 */
168 static void handle_activate_start(struct T_SM_CONTEXT_DATA *context, /*@unused@*/ /*@null@*/ void *data)
169 {
170 (void)TRACE_FUNCTION("handle_activate_start");
171
172 /* Send SM_ACTIVATE_STARTED_IND */
173 send_sm_activate_started_ind(context);
174
175 /* Go to state SM USER PLANE ACTIVATE STARTED */
176 context->user_plane_control_state = SM_USER_PLANE_ACTIVATE_STARTED;
177 }
178
179 /*
180 +------------------------------------------------------------------------------
181 | Function : handle_activate_complete
182 +------------------------------------------------------------------------------
183 | Description : Handle event SM_I_USER_PLANE_ACTIVATE_COMPLETE in S1
184 |
185 | Parameters : context - Context data
186 | data - Not used
187 +------------------------------------------------------------------------------
188 */
189 static void handle_activate_complete(struct T_SM_CONTEXT_DATA *context, /*@unused@*/ /*@null@*/ void *data)
190 {
191 (void)TRACE_FUNCTION("handle_activate_complete");
192
193 /* Send SM_ACTIVATE_IND */
194 send_sm_activate_ind(context);
195
196 /* Go to state SM USER PLANE ACTIVATE COMPLETING */
197 context->user_plane_control_state = SM_USER_PLANE_ACTIVATE_COMPLETING;
198 }
199
200 /*
201 +------------------------------------------------------------------------------
202 | Function : handle_modify
203 +------------------------------------------------------------------------------
204 | Description : Handle event SM_I_USER_PLANE_MODIFY in S3
205 |
206 | Parameters : context - Context data
207 | data - Update flags
208 +------------------------------------------------------------------------------
209 */
210 static void handle_modify(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data)
211 {
212 (void)TRACE_FUNCTION("handle_modify");
213
214 /* Send SM_MODIFY_IND */
215 send_sm_modify_ind(context);
216
217 /* Go to state SM USER PLANE MODIFYING */
218 context->user_plane_control_state = SM_USER_PLANE_MODIFYING;
219 }
220
221 /*
222 +------------------------------------------------------------------------------
223 | Function : handle_deactivate
224 +------------------------------------------------------------------------------
225 | Description : Handle event SM_I_USER_PLANE_DEACTIVATE in any state
226 |
227 | Parameters : context - Context data
228 | data - PS_rel_ind
229 +------------------------------------------------------------------------------
230 */
231 static void handle_deactivate(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data)
232 {
233 (void)TRACE_FUNCTION("handle_deactivate");
234
235 /* Send SM_DEACTIVATE_IND with local parameter taken from input */
236 send_sm_deactivate_ind(sm_nsapi2nsapi_set(context->nsapi),
237 (data == NULL ? PS_REL_IND_NO : PS_REL_IND_YES));
238
239 /* Go to state SM USER PLANE DEACTIVATING */
240 context->user_plane_control_state = SM_USER_PLANE_DEACTIVATING;
241 }
242
243 /*
244 +------------------------------------------------------------------------------
245 | Function : handle_deactivate_local
246 +------------------------------------------------------------------------------
247 | Description : Handle event SM_I_USER_PLANE_DEACTIVATE_LOCAL in any state
248 |
249 | Parameters : context - Context data
250 | data - BOOL (TRUE = send SM_DEACTIVATE_IND)
251 +------------------------------------------------------------------------------
252 */
253 static void handle_deactivate_local(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data)
254 {
255 (void)TRACE_FUNCTION("handle_deactivate_local");
256
257 if (data)
258 {
259 /* Send SM_DEACTIVATE_IND with local parameter true */
260 send_sm_deactivate_ind(sm_nsapi2nsapi_set(context->nsapi), PS_REL_IND_YES);
261
262 /* Go to state SM USER PLANE DEACTIVATING */
263 context->user_plane_control_state = SM_USER_PLANE_DEACTIVATING;
264 } else {
265 /* Go to state SM USER PLANE DEACTIVATED */
266 context->user_plane_control_state = SM_USER_PLANE_DEACTIVATED;
267 }
268 }
269
270 /*
271 +------------------------------------------------------------------------------
272 | Function : handle_sm_activate_res
273 +------------------------------------------------------------------------------
274 | Description : Handle event SM_P_SM_ACTIVATE_RES in S2
275 |
276 | Parameters : context - Context data
277 | data - Not used
278 +------------------------------------------------------------------------------
279 */
280 static void handle_sm_activate_res(struct T_SM_CONTEXT_DATA *context, /*@unused@*/ /*@null@*/ void *data)
281 {
282 (void)TRACE_FUNCTION("handle_sm_activate_res");
283
284 /* Go to state SM USER PLANE ACTIVATED */
285 context->user_plane_control_state = SM_USER_PLANE_ACTIVATED;
286
287 /* If comp params is sent by UPM copy it to context. When SMREG_ACTIVATE_CNF
288 * primitive is composed this values are copied.
289 */
290 if ( (((T_SM_ACTIVATE_RES*)data)->v_comp_params == TRUE) )
291 {
292 memcpy(&context->comp_params, &((T_SM_ACTIVATE_RES*)data)->comp_params,
293 sizeof(T_NAS_comp_params));
294 } else {
295 memset(&context->comp_params, 0, sizeof(T_NAS_comp_params));
296 }
297 /* Notify Context Control of activation completion */
298 sm_context_control(context, SM_I_USER_PLANE_ACTIVATED, NULL);
299 }
300
301 /*
302 +------------------------------------------------------------------------------
303 | Function : handle_sm_deactivate_res
304 +------------------------------------------------------------------------------
305 | Description : Handle event SM_P_SM_DEACTIVATE_RES in S5
306 |
307 | Parameters : context - Context data
308 | data - Not used
309 +------------------------------------------------------------------------------
310 */
311 static void handle_sm_deactivate_res(struct T_SM_CONTEXT_DATA *context, /*@unused@*/ /*@null@*/ void *data)
312 {
313 (void)TRACE_FUNCTION("handle_sm_deactivate_res");
314
315 /* Go to state SM USER PLANE DEACTIVATED */
316 context->user_plane_control_state = SM_USER_PLANE_DEACTIVATED;
317
318 /* Notify Context Control of deactivation completion */
319 sm_context_control(context, SM_I_USER_PLANE_DEACTIVATED, NULL);
320 }
321
322 /*
323 +------------------------------------------------------------------------------
324 | Function : handle_sm_modify_res
325 +------------------------------------------------------------------------------
326 | Description : Handle event SM_P_SM_MODIFY_RES in S4
327 |
328 | Parameters : context - Context data
329 | data - Not used
330 +------------------------------------------------------------------------------
331 */
332 static void handle_sm_modify_res(struct T_SM_CONTEXT_DATA *context, /*@unused@*/ /*@null@*/ void *data)
333 {
334 (void)TRACE_FUNCTION("handle_sm_modify_res");
335
336 /* Go to state SM USER PLANE ACTIVATED */
337 context->user_plane_control_state = SM_USER_PLANE_ACTIVATED;
338
339 /* Notify Context Control of modification completion */
340 sm_context_control(context, SM_I_USER_PLANE_MODIFIED, NULL);
341 }
342
343 /*==== PUBLIC FUNCTIONS =====================================================*/
344
345 /*
346 +------------------------------------------------------------------------------
347 | Function : sm_user_plane_control_init
348 +------------------------------------------------------------------------------
349 | Description : User Plane Control state machine initialization function
350
351 | Parameters : context - Context data
352 +------------------------------------------------------------------------------
353 */
354 void sm_user_plane_control_init(struct T_SM_CONTEXT_DATA *context)
355 {
356 (void)TRACE_FUNCTION("sm_user_plane_control_init");
357
358 context->user_plane_control_state = SM_USER_PLANE_DEACTIVATED;
359 }
360
361 /*
362 +------------------------------------------------------------------------------
363 | Function : sm_user_plane_control_exit
364 +------------------------------------------------------------------------------
365 | Description : User Plane Control state machine exit function
366
367 | Parameters : context - Context data
368 +------------------------------------------------------------------------------
369 */
370 void sm_user_plane_control_exit(struct T_SM_CONTEXT_DATA *context)
371 {
372 (void)TRACE_FUNCTION("sm_user_plane_control_exit");
373
374 context->user_plane_control_state = SM_USER_PLANE_DEACTIVATED;
375 }
376
377 /*
378 +------------------------------------------------------------------------------
379 | Function : sm_user_plane_control_state
380 +------------------------------------------------------------------------------
381 | Description : Returns a read-only string with the name of the active state.
382
383 | Parameters : context - Context data
384 +------------------------------------------------------------------------------
385 */
386 #ifdef DEBUG
387 /*@observer@*/const char *
388 sm_user_plane_control_state(struct T_SM_CONTEXT_DATA *context)
389 {
390 /*@observer@*/
391 static const char *state_name[SM_USER_PLANE_CONTROL_NUMBER_OF_STATES] = {
392 "S0_SM_USER_PLANE_DEACTIVATED",
393 "S1_SM_USER_PLANE_ACTIVATE_STARTED",
394 "S2_SM_USER_PLANE_ACTIVATE_COMPLETING",
395 "S3_SM_USER_PLANE_ACTIVATED",
396 "S4_SM_USER_PLANE_MODIFYING",
397 "S5_SM_USER_PLANE_DEACTIVATING"
398 };
399
400 TRACE_ASSERT(context->user_plane_control_state < SM_USER_PLANE_CONTROL_NUMBER_OF_STATES);
401
402 return state_name[(U16)context->user_plane_control_state];
403 }
404 #endif
405
406 /*
407 +------------------------------------------------------------------------------
408 | Function : sm_user_plane_control
409 +------------------------------------------------------------------------------
410 | Description : User Plane Control state machine
411 |
412 | Parameters : context - Context data
413 | event - Internal event (see sm_user_plane_control.h)
414 | data - Event dependent parameter
415 +------------------------------------------------------------------------------
416 */
417 void sm_user_plane_control(struct T_SM_CONTEXT_DATA *context,
418 T_SM_USER_PLANE_CONTROL_EVENT event,
419 /*@null@*/ void *data)
420 {
421 #ifdef DEBUG
422 const char *old_state_name, *new_state_name;
423 T_SM_USER_PLANE_CONTROL_STATE old_state;
424 /*@observer@*/
425 static const char *event_name[SM_USER_PLANE_CONTROL_NUMBER_OF_EVENTS] = {
426 "SM_P_SM_ACTIVATE_RES",
427 "SM_P_SM_DEACTIVATE_RES",
428 "SM_P_SM_MODIFY_RES",
429 "SM_I_USER_PLANE_ACTIVATE_START",
430 "SM_I_USER_PLANE_ACTIVATE_COMPLETE",
431 "SM_I_USER_PLANE_DEACTIVATE_LOCAL",
432 "SM_I_USER_PLANE_MODIFY",
433 "SM_I_USER_PLANE_DEACTIVATE"
434 };
435
436 TRACE_ASSERT(event < SM_USER_PLANE_CONTROL_NUMBER_OF_EVENTS);
437
438 old_state = context->user_plane_control_state;
439 old_state_name = sm_user_plane_control_state(context);
440
441 if (transition[(U16)old_state][(U16)event].event != event) {
442 (void)TRACE_ERROR("Event table error in sm_user_plane_control!");
443 }
444 #endif /* DEBUG */
445
446 transition[(U16)context->user_plane_control_state]
447 [(U16)event].func(context, data);
448
449 #ifdef DEBUG
450 new_state_name = sm_user_plane_control_state(context);
451
452 (void)TRACE_EVENT_P4("SM U-PLANE #%d: %s => %s to %s", context->nsapi,
453 event_name[(U16)event], old_state_name, new_state_name);
454 #endif /* DEBUG */
455 }
456
457 /*==== END OF FILE ==========================================================*/