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comparison src/g23m-gprs/sm/sm_context_deactivate_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: Context Deactivate Control sub-state machine implementation
17 | in the SM entity.
18 | For design details, see:
19 | 8010.908 SM Detailed Specification
20 +---------------------------------------------------------------------------*/
21
22 /*==== DECLARATION CONTROL =================================================*/
23
24 /*==== INCLUDES =============================================================*/
25
26 #include "sm.h"
27
28 #include "sm_context_control.h"
29 #include "sm_context_deactivate_control.h"
30
31 /*==== CONSTS ===============================================================*/
32
33 /*==== TYPES ================================================================*/
34
35 typedef void (*T_SM_CONTEXT_DEACTIVATE_CONTROL_TRANSITION_FUNC)(struct T_SM_CONTEXT_DATA *ptr_context_data, /*@null@*/ void *data);
36
37 typedef struct {
38 #ifdef DEBUG
39 T_SM_CONTEXT_DEACTIVATE_CONTROL_EVENT event;
40 #endif /* DEBUG */
41 T_SM_CONTEXT_DEACTIVATE_CONTROL_TRANSITION_FUNC func;
42 } T_SM_CONTEXT_DEACTIVATE_CONTROL_TRANSITION;
43
44 /*==== LOCALS ===============================================================*/
45
46 static void state_event_error(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data);
47 static void ignored (struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data);
48 static void go_to_S1 (struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data);
49 static void go_to_S2 (struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data);
50 static void handle_deactivate_network_in_S0(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data);
51 static void handle_deactivate_user_plane_in_S0(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data);
52 static void handle_deactivate_network_and_user_plane_in_S0(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data);
53 static void handle_deactivate_user_plane_in_S1(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data);
54 static void handle_deactivate_network_in_S2(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data);
55 static void handle_deactivate_completed(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data);
56
57 /***********************************************************************
58 * State/Transition Table
59 */
60 static const T_SM_CONTEXT_DEACTIVATE_CONTROL_TRANSITION
61 transition[SM_CONTEXT_DEACTIVATE_CONTROL_NUMBER_OF_STATES][SM_CONTEXT_DEACTIVATE_CONTROL_NUMBER_OF_EVENTS] =
62 {
63 { /* S0: SM CONTEXT DEACTIVATE NULL */
64 M_TRANSITION(SM_I_DEACTIVATE_NETWORK, handle_deactivate_network_in_S0),
65 M_TRANSITION(SM_I_DEACTIVATE_USER_PLANE, handle_deactivate_user_plane_in_S0),
66 M_TRANSITION(SM_I_DEACTIVATE_NETWORK_AND_USER_PLANE, handle_deactivate_network_and_user_plane_in_S0),
67 M_TRANSITION(SM_I_DEACTIVATE_NETWORK_COMPLETED, ignored),
68 M_TRANSITION(SM_I_DEACTIVATE_USER_PLANE_COMPLETED, ignored)
69 },
70 { /* S1: SM CONTEXT DEACTIVATE NETWORK */
71 M_TRANSITION(SM_I_DEACTIVATE_NETWORK, ignored),
72 M_TRANSITION(SM_I_DEACTIVATE_USER_PLANE, handle_deactivate_user_plane_in_S1),
73 M_TRANSITION(SM_I_DEACTIVATE_NETWORK_AND_USER_PLANE, handle_deactivate_user_plane_in_S1),
74 M_TRANSITION(SM_I_DEACTIVATE_NETWORK_COMPLETED, handle_deactivate_completed),
75 M_TRANSITION(SM_I_DEACTIVATE_USER_PLANE_COMPLETED, state_event_error)
76 },
77 { /* S2: SM CONTEXT DEACTIVATE USER PLANE */
78 M_TRANSITION(SM_I_DEACTIVATE_NETWORK, handle_deactivate_network_in_S2),
79 M_TRANSITION(SM_I_DEACTIVATE_USER_PLANE, ignored),
80 M_TRANSITION(SM_I_DEACTIVATE_NETWORK_AND_USER_PLANE, handle_deactivate_network_in_S2),
81 M_TRANSITION(SM_I_DEACTIVATE_NETWORK_COMPLETED, state_event_error),
82 M_TRANSITION(SM_I_DEACTIVATE_USER_PLANE_COMPLETED, handle_deactivate_completed)
83 },
84 { /* S3: SM CONTEXT DEACTIVATE BOTH */
85 M_TRANSITION(SM_I_DEACTIVATE_NETWORK, ignored),
86 M_TRANSITION(SM_I_DEACTIVATE_USER_PLANE, ignored),
87 M_TRANSITION(SM_I_DEACTIVATE_NETWORK_AND_USER_PLANE, ignored),
88 M_TRANSITION(SM_I_DEACTIVATE_NETWORK_COMPLETED, go_to_S2),
89 M_TRANSITION(SM_I_DEACTIVATE_USER_PLANE_COMPLETED, go_to_S1)
90 }
91 };
92
93 /*==== PRIVATE FUNCTIONS ====================================================*/
94
95 /*
96 +------------------------------------------------------------------------------
97 | Function : state_event_error
98 +------------------------------------------------------------------------------
99 | Description : General function used to report state event errors.
100 |
101 | Parameters : context - Not used
102 | data - Not used
103 +------------------------------------------------------------------------------
104 */
105 static void state_event_error(/*@unused@*/ struct T_SM_CONTEXT_DATA *context, /*@unused@*/ /*@null@*/ void *data)
106 {
107 (void)TRACE_ERROR("SM Context Deactivate Control: STATE EVENT ERROR!");
108 }
109
110 /*
111 +------------------------------------------------------------------------------
112 | Function : ignored
113 +------------------------------------------------------------------------------
114 | Description : General function used for transitions that shall be ignored
115 |
116 | Parameters : context - Not used
117 | data - Not used
118 +------------------------------------------------------------------------------
119 */
120 static void ignored(/*@unused@*/ struct T_SM_CONTEXT_DATA *context, /*@unused@*/ /*@null@*/ void *data)
121 {
122 (void)TRACE_FUNCTION("SM Context Deactivate Control: Event ignored.");
123 }
124
125 /*
126 +------------------------------------------------------------------------------
127 | Function : go_to_S*
128 +------------------------------------------------------------------------------
129 | Description : General functions for simple state transitions
130 |
131 | Parameters : context - Not used
132 | data - Not used
133 +------------------------------------------------------------------------------
134 */
135 static void go_to_S1(/*@unused@*/ struct T_SM_CONTEXT_DATA *context, /*@unused@*/ /*@null@*/ void *data)
136 {
137 /* Go to S1: SM CONTEXT DEACTIVATE NETWORK */
138 context->context_deactivate_control_state = SM_CONTEXT_DEACTIVATE_NETWORK;
139 }
140
141 static void go_to_S2(/*@unused@*/ struct T_SM_CONTEXT_DATA *context, /*@unused@*/ /*@null@*/ void *data)
142 {
143 /* Go to S0: SM CONTEXT DEACTIVATE USER PLANE */
144 context->context_deactivate_control_state = SM_CONTEXT_DEACTIVATE_USER_PLANE;
145 }
146
147 /*
148 +------------------------------------------------------------------------------
149 | Function : handle_deactivate_network_in_S0
150 +------------------------------------------------------------------------------
151 | Description : Handle event SM_I_DEACTIVATE_NETWORK in S0
152 |
153 | Parameters : context - Context data
154 | data - Cause
155 +------------------------------------------------------------------------------
156 */
157 static void handle_deactivate_network_in_S0(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data)
158 {
159 (void)TRACE_FUNCTION("handle_deactivate_network_in_S0");
160
161 TRACE_ASSERT(data != NULL);
162
163 /* Go to state SM CONTEXT DEACTIVATE NETWORK */
164 context->context_deactivate_control_state = SM_CONTEXT_DEACTIVATE_NETWORK;
165
166 /* Order Network Control to deactivate */
167 sm_network_control(context, SM_I_NETWORK_DEACTIVATE, data);
168 }
169
170 /*
171 +------------------------------------------------------------------------------
172 | Function : handle_deactivate_user_plane_in_S0
173 +------------------------------------------------------------------------------
174 | Description : Handle event SM_I_DEACTIVATE_USER_PLANE in S0
175 |
176 | Parameters : context - Context data
177 | data - Not used
178 +------------------------------------------------------------------------------
179 */
180 static void handle_deactivate_user_plane_in_S0(struct T_SM_CONTEXT_DATA *context, /*@null@*/ /*@unused@*/ void *data)
181 {
182 (void)TRACE_FUNCTION("handle_deactivate_user_plane_in_S0");
183
184 /* Go to state SM CONTEXT DEACTIVATE USER PLANE */
185 context->context_deactivate_control_state = SM_CONTEXT_DEACTIVATE_USER_PLANE;
186
187 /* Order User Plane Control to deactivate */
188 sm_user_plane_control(context, SM_I_USER_PLANE_DEACTIVATE, NULL);
189 }
190
191 /*
192 +------------------------------------------------------------------------------
193 | Function : handle_deactivate_network_and_user_plane_in_S0
194 +------------------------------------------------------------------------------
195 | Description : Handle event SM_I_DEACTIVATE_NETWORK_AND_USER_PLANE in S0
196 |
197 | Parameters : context - Context data
198 | data - Cause
199 +------------------------------------------------------------------------------
200 */
201 static void handle_deactivate_network_and_user_plane_in_S0(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data)
202 {
203 (void)TRACE_FUNCTION("handle_deactivate_network_and_user_plane_in_S0");
204
205 TRACE_ASSERT(data != NULL);
206
207 /* Go to state SM CONTEXT DEACTIVATE BOTH */
208 context->context_deactivate_control_state = SM_CONTEXT_DEACTIVATE_BOTH;
209
210 /* Order Network Control and User Plane Control to deactivate */
211 sm_network_control (context, SM_I_NETWORK_DEACTIVATE, data);
212 sm_user_plane_control(context, SM_I_USER_PLANE_DEACTIVATE, NULL);
213 }
214
215 /*
216 +------------------------------------------------------------------------------
217 | Function : handle_deactivate_user_plane_in_S1
218 +------------------------------------------------------------------------------
219 | Description : Handle event SM_I_DEACTIVATE_USER_PLANE in S1
220 |
221 | Parameters : context - Context data
222 | data - Not used
223 +------------------------------------------------------------------------------
224 */
225 static void handle_deactivate_user_plane_in_S1(struct T_SM_CONTEXT_DATA *context, /*@null@*/ /*@unused@*/ void *data)
226 {
227 (void)TRACE_FUNCTION("handle_deactivate_user_plane_in_S1");
228
229 /* Go to state SM CONTEXT DEACTIVATE BOTH */
230 context->context_deactivate_control_state = SM_CONTEXT_DEACTIVATE_BOTH;
231
232 /* Order User Plane Control to deactivate */
233 sm_user_plane_control(context, SM_I_USER_PLANE_DEACTIVATE, NULL);
234 }
235
236 /*
237 +------------------------------------------------------------------------------
238 | Function : handle_deactivate_network_in_S2
239 +------------------------------------------------------------------------------
240 | Description : Handle event SM_I_DEACTIVATE_NETWORK in S2
241 |
242 | Parameters : context - Context data
243 | data - Cause
244 +------------------------------------------------------------------------------
245 */
246 static void handle_deactivate_network_in_S2(struct T_SM_CONTEXT_DATA *context, /*@null@*/ void *data)
247 {
248 (void)TRACE_FUNCTION("handle_deactivate_network_in_S2");
249
250 TRACE_ASSERT(data != NULL);
251
252 /* Go to state SM CONTEXT DEACTIVATE BOTH */
253 context->context_deactivate_control_state = SM_CONTEXT_DEACTIVATE_BOTH;
254
255 /* Order Network Control to deactivate */
256 sm_network_control(context, SM_I_NETWORK_DEACTIVATE, data);
257 }
258
259 /*
260 +------------------------------------------------------------------------------
261 | Function : handle_deactivate_completed
262 +------------------------------------------------------------------------------
263 | Description : Handle event SM_I_NETWORK_DEACTIVATE_COMPLETED in S1, or
264 | event SM_I_USER_PLANE_DEACTIVATED in S2.
265 |
266 | Parameters : context - Context data
267 | data - Not used
268 +------------------------------------------------------------------------------
269 */
270 static void handle_deactivate_completed(struct T_SM_CONTEXT_DATA *context, /*@null@*/ /*@unused@*/ void *data)
271 {
272 (void)TRACE_FUNCTION("handle_deactivate_completed");
273
274 /* Go to state SM CONTEXT DEACTIVATE NULL */
275 context->context_deactivate_control_state = SM_CONTEXT_DEACTIVATE_NULL;
276
277 /* Report deactivation complete to Context Control */
278 sm_context_control(context, SM_I_DEACTIVATE_COMPLETED, NULL);
279 }
280
281 /*==== PUBLIC FUNCTIONS =====================================================*/
282
283 /*
284 +------------------------------------------------------------------------------
285 | Function : sm_context_deactivate_control_init
286 +------------------------------------------------------------------------------
287 | Description : User Plane Control state machine initialization function
288
289 | Parameters : context - Context data
290 +------------------------------------------------------------------------------
291 */
292 void sm_context_deactivate_control_init(struct T_SM_CONTEXT_DATA *context)
293 {
294 (void)TRACE_FUNCTION("sm_context_deactivate_control_init");
295
296 context->context_deactivate_control_state = SM_CONTEXT_DEACTIVATE_NULL;
297 }
298
299 /*
300 +------------------------------------------------------------------------------
301 | Function : sm_context_deactivate_control_exit
302 +------------------------------------------------------------------------------
303 | Description : User Plane Control state machine exit function
304
305 | Parameters : context - Context data
306 +------------------------------------------------------------------------------
307 */
308 void sm_context_deactivate_control_exit(struct T_SM_CONTEXT_DATA *context)
309 {
310 (void)TRACE_FUNCTION("sm_context_deactivate_control_exit");
311
312 context->context_deactivate_control_state = SM_CONTEXT_DEACTIVATE_NULL;
313 }
314
315 /*
316 +------------------------------------------------------------------------------
317 | Function : sm_context_deactivate_control_state
318 +------------------------------------------------------------------------------
319 | Description : Returns a read-only string with the name of the active state.
320
321 | Parameters : context - Context data
322 +------------------------------------------------------------------------------
323 */
324 #ifdef DEBUG
325 /*@observer@*/const char *
326 sm_context_deactivate_control_state(struct T_SM_CONTEXT_DATA *context)
327 {
328 /*@observer@*/
329 static const char *state_name[SM_CONTEXT_DEACTIVATE_CONTROL_NUMBER_OF_STATES] = {
330 "S0_SM_CONTEXT_DEACTIVATE_NULL",
331 "S1_SM_CONTEXT_DEACTIVATE_NETWORK",
332 "S2_SM_CONTEXT_DEACTIVATE_USER_PLANE",
333 "S3_SM_CONTEXT_DEACTIVATE_BOTH"
334 };
335
336 TRACE_ASSERT(context->context_deactivate_control_state < SM_CONTEXT_DEACTIVATE_CONTROL_NUMBER_OF_STATES);
337
338 return state_name[(U16)context->context_deactivate_control_state];
339 }
340 #endif
341
342 /*
343 +------------------------------------------------------------------------------
344 | Function : sm_context_deactivate_control
345 +------------------------------------------------------------------------------
346 | Description : User Plane Control state machine
347 |
348 | Parameters : context - Context data
349 | event - Internal event (see sm_context_deactivate_control.h)
350 | data - Event dependent parameter
351 +------------------------------------------------------------------------------
352 */
353 void sm_context_deactivate_control(struct T_SM_CONTEXT_DATA *context,
354 T_SM_CONTEXT_DEACTIVATE_CONTROL_EVENT event,
355 /*@null@*/ void *data)
356 {
357 #ifdef DEBUG
358 const char *old_state_name, *new_state_name;
359 T_SM_CONTEXT_DEACTIVATE_CONTROL_STATE old_state;
360 /*@observer@*/
361 static const char *event_name[SM_CONTEXT_DEACTIVATE_CONTROL_NUMBER_OF_EVENTS] = {
362 "SM_I_DEACTIVATE_NETWORK",
363 "SM_I_DEACTIVATE_USER_PLANE",
364 "SM_I_DEACTIVATE_NETWORK_AND_USER_PLANE",
365 "SM_I_DEACTIVATE_NETWORK_COMPLETED",
366 "SM_I_DEACTIVATE_USER_PLANE_COMPLETED"
367 };
368
369 TRACE_ASSERT(event < SM_CONTEXT_DEACTIVATE_CONTROL_NUMBER_OF_EVENTS);
370
371 old_state = context->context_deactivate_control_state;
372 old_state_name = sm_context_deactivate_control_state(context);
373
374 if (transition[(U16)old_state][(U16)event].event != event) {
375 (void)TRACE_ERROR("Event table error in sm_context_deactivate_control!");
376 }
377 #endif /* DEBUG */
378
379 transition[(U16)context->context_deactivate_control_state]
380 [(U16)event].func(context, data);
381
382 #ifdef DEBUG
383 new_state_name = sm_context_deactivate_control_state(context);
384
385 (void)TRACE_EVENT_P4("SM CX DEAC #%d: %s => %s to %s", context->nsapi,
386 event_name[(U16)event], old_state_name, new_state_name);
387 #endif /* DEBUG */
388 }
389
390 /*==== END OF FILE ==========================================================*/