1 /******************************************************************************
2 *
3 * Copyright 2002-2012 Broadcom Corporation
4 *
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at:
8 *
9 * http://www.apache.org/licenses/LICENSE-2.0
10 *
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
16 *
17 ******************************************************************************/
18
19 /******************************************************************************
20 *
21 * This module contains the stream control block and functions which
22 * operate on the stream control block.
23 *
24 ******************************************************************************/
25
26 #include <string.h>
27 #include "avdt_api.h"
28 #include "avdt_int.h"
29 #include "avdtc_api.h"
30 #include "bt_target.h"
31 #include "bt_utils.h"
32 #include "osi/include/osi.h"
33
34 /*****************************************************************************
35 * state machine constants and types
36 ****************************************************************************/
37 #if (AVDT_DEBUG == TRUE)
38
39 /* verbose state strings for trace */
40 const char* const avdt_scb_st_str[] = {"SCB_IDLE_ST", "SCB_CONF_ST",
41 "SCB_OPENING_ST", "SCB_OPEN_ST",
42 "SCB_STREAM_ST", "SCB_CLOSING_ST"};
43
44 /* verbose event strings for trace */
45 const char* const avdt_scb_evt_str[] = {
46 "API_REMOVE_EVT", "API_WRITE_REQ_EVT", "API_GETCONFIG_REQ_EVT",
47 "API_DELAY_RPT_REQ", "API_SETCONFIG_REQ_EVT", "API_OPEN_REQ_EVT",
48 "API_CLOSE_REQ_EVT", "API_RECONFIG_REQ_EVT", "API_SECURITY_REQ_EVT",
49 "API_ABORT_REQ_EVT", "API_GETCONFIG_RSP_EVT", "API_SETCONFIG_RSP_EVT",
50 "API_SETCONFIG_REJ_EVT", "API_OPEN_RSP_EVT", "API_CLOSE_RSP_EVT",
51 "API_RECONFIG_RSP_EVT", "API_SECURITY_RSP_EVT", "API_ABORT_RSP_EVT",
52 "MSG_SETCONFIG_CMD_EVT", "MSG_GETCONFIG_CMD_EVT", "MSG_OPEN_CMD_EVT",
53 "MSG_START_CMD_EVT", "MSG_SUSPEND_CMD_EVT", "MSG_CLOSE_CMD_EVT",
54 "MSG_ABORT_CMD_EVT", "MSG_RECONFIG_CMD_EVT", "MSG_SECURITY_CMD_EVT",
55 "MSG_DELAY_RPT_CMD_EVT", "MSG_DELAY_RPT_RSP_EVT", "MSG_SETCONFIG_RSP_EVT",
56 "MSG_GETCONFIG_RSP_EVT", "MSG_OPEN_RSP_EVT", "MSG_START_RSP_EVT",
57 "MSG_SUSPEND_RSP_EVT", "MSG_CLOSE_RSP_EVT", "MSG_ABORT_RSP_EVT",
58 "MSG_RECONFIG_RSP_EVT", "MSG_SECURITY_RSP_EVT", "MSG_SETCONFIG_REJ_EVT",
59 "MSG_OPEN_REJ_EVT", "MSG_START_REJ_EVT", "MSG_SUSPEND_REJ_EVT",
60 "TC_TOUT_EVT", "TC_OPEN_EVT", "TC_CLOSE_EVT",
61 "TC_CONG_EVT", "TC_DATA_EVT", "CC_CLOSE_EVT"};
62
63 #endif
64
65 /* action function list */
66 const tAVDT_SCB_ACTION avdt_scb_action[] = {avdt_scb_hdl_abort_cmd,
67 avdt_scb_hdl_abort_rsp,
68 avdt_scb_hdl_close_cmd,
69 avdt_scb_hdl_close_rsp,
70 avdt_scb_hdl_getconfig_cmd,
71 avdt_scb_hdl_getconfig_rsp,
72 avdt_scb_hdl_open_cmd,
73 avdt_scb_hdl_open_rej,
74 avdt_scb_hdl_open_rsp,
75 avdt_scb_hdl_pkt,
76 avdt_scb_drop_pkt,
77 avdt_scb_hdl_reconfig_cmd,
78 avdt_scb_hdl_reconfig_rsp,
79 avdt_scb_hdl_security_cmd,
80 avdt_scb_hdl_security_rsp,
81 avdt_scb_hdl_setconfig_cmd,
82 avdt_scb_hdl_setconfig_rej,
83 avdt_scb_hdl_setconfig_rsp,
84 avdt_scb_hdl_start_cmd,
85 avdt_scb_hdl_start_rsp,
86 avdt_scb_hdl_suspend_cmd,
87 avdt_scb_hdl_suspend_rsp,
88 avdt_scb_hdl_tc_close,
89 avdt_scb_hdl_tc_close_sto,
90 avdt_scb_hdl_tc_open,
91 avdt_scb_hdl_tc_open_sto,
92 avdt_scb_snd_delay_rpt_req,
93 avdt_scb_hdl_delay_rpt_cmd,
94 avdt_scb_hdl_delay_rpt_rsp,
95 avdt_scb_hdl_write_req,
96 avdt_scb_snd_abort_req,
97 avdt_scb_snd_abort_rsp,
98 avdt_scb_snd_close_req,
99 avdt_scb_snd_stream_close,
100 avdt_scb_snd_close_rsp,
101 avdt_scb_snd_getconfig_req,
102 avdt_scb_snd_getconfig_rsp,
103 avdt_scb_snd_open_req,
104 avdt_scb_snd_open_rsp,
105 avdt_scb_snd_reconfig_req,
106 avdt_scb_snd_reconfig_rsp,
107 avdt_scb_snd_security_req,
108 avdt_scb_snd_security_rsp,
109 avdt_scb_snd_setconfig_req,
110 avdt_scb_snd_setconfig_rej,
111 avdt_scb_snd_setconfig_rsp,
112 avdt_scb_snd_snk_delay_rpt_req,
113 avdt_scb_snd_tc_close,
114 avdt_scb_cb_err,
115 avdt_scb_cong_state,
116 avdt_scb_rej_state,
117 avdt_scb_rej_in_use,
118 avdt_scb_rej_not_in_use,
119 avdt_scb_set_remove,
120 avdt_scb_free_pkt,
121 avdt_scb_clr_pkt,
122 avdt_scb_chk_snd_pkt,
123 avdt_scb_transport_channel_timer,
124 avdt_scb_clr_vars,
125 avdt_scb_dealloc};
126
127 /* state table information */
128 #define AVDT_SCB_ACTIONS 2 /* number of actions */
129 #define AVDT_SCB_NEXT_STATE 2 /* position of next state */
130 #define AVDT_SCB_NUM_COLS 3 /* number of columns in state tables */
131
132 /* state table for idle state */
133 const uint8_t avdt_scb_st_idle[][AVDT_SCB_NUM_COLS] = {
134 /* Event */
135 /* Action 1 Action 2 Next state */
136 /* API_REMOVE_EVT */
137 {AVDT_SCB_DEALLOC, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
138 /* API_WRITE_REQ_EVT */
139 {AVDT_SCB_FREE_PKT, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
140 /* API_GETCONFIG_REQ_EVT */
141 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
142 /* API_DELAY_RPT_REQ_EVT */
143 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
144 /* API_SETCONFIG_REQ_EVT */
145 {AVDT_SCB_SND_SETCONFIG_REQ, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
146 /* API_OPEN_REQ_EVT */
147 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
148 /* API_CLOSE_REQ_EVT */
149 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
150 /* API_RECONFIG_REQ_EVT */
151 {AVDT_SCB_CB_ERR, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
152 /* API_SECURITY_REQ_EVT */
153 {AVDT_SCB_CB_ERR, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
154 /* API_ABORT_REQ_EVT */
155 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
156 /* API_GETCONFIG_RSP_EVT */
157 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
158 /* API_SETCONFIG_RSP_EVT */
159 {AVDT_SCB_SND_SETCONFIG_RSP, AVDT_SCB_SND_SNK_DELAY_RPT_REQ, AVDT_SCB_CONF_ST},
160 /* API_SETCONFIG_REJ_EVT */
161 {AVDT_SCB_SND_SETCONFIG_REJ, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
162 /* API_OPEN_RSP_EVT */
163 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
164 /* API_CLOSE_RSP_EVT */
165 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
166 /* API_RECONFIG_RSP_EVT */
167 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
168 /* API_SECURITY_RSP_EVT */
169 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
170 /* API_ABORT_RSP_EVT */
171 {AVDT_SCB_SND_ABORT_RSP, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
172 /* MSG_SETCONFIG_CMD_EVT */
173 {AVDT_SCB_HDL_SETCONFIG_CMD, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
174 /* MSG_GETCONFIG_CMD_EVT */
175 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
176 /* MSG_OPEN_CMD_EVT */
177 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
178 /* MSG_START_CMD_EVT */
179 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
180 /* MSG_SUSPEND_CMD_EVT */
181 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
182 /* MSG_CLOSE_CMD_EVT */
183 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
184 /* MSG_ABORT_CMD_EVT */
185 {AVDT_SCB_HDL_ABORT_CMD, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
186 /* MSG_RECONFIG_CMD_EVT */
187 {AVDT_SCB_REJ_NOT_IN_USE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
188 /* MSG_SECURITY_CMD_EVT */
189 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
190 /* MSG_DELAY_RPT_CMD_EVT */
191 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
192 /* MSG_DELAY_RPT_RSP_EVT */
193 {AVDT_SCB_HDL_DELAY_RPT_RSP, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
194 /* MSG_SETCONFIG_RSP_EVT */
195 {AVDT_SCB_HDL_SETCONFIG_RSP, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
196 /* MSG_GETCONFIG_RSP_EVT */
197 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
198 /* MSG_OPEN_RSP_EVT */
199 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
200 /* MSG_START_RSP_EVT */
201 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
202 /* MSG_SUSPEND_RSP_EVT */
203 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
204 /* MSG_CLOSE_RSP_EVT */
205 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
206 /* MSG_ABORT_RSP_EVT */
207 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
208 /* MSG_RECONFIG_RSP_EVT */
209 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
210 /* MSG_SECURITY_RSP_EVT */
211 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
212 /* MSG_SETCONFIG_REJ_EVT */
213 {AVDT_SCB_HDL_SETCONFIG_REJ, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
214 /* MSG_OPEN_REJ_EVT */
215 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
216 /* MSG_START_REJ_EVT */
217 {AVDT_SCB_HDL_START_RSP, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
218 /* MSG_SUSPEND_REJ_EVT */
219 {AVDT_SCB_HDL_SUSPEND_RSP, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
220 /* TC_TOUT_EVT */
221 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
222 /* TC_OPEN_EVT */
223 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
224 /* TC_CLOSE_EVT */
225 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
226 /* TC_CONG_EVT */
227 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
228 /* TC_DATA_EVT */
229 {AVDT_SCB_DROP_PKT, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
230 /* CC_CLOSE_EVT */
231 {AVDT_SCB_CLR_VARS, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST}};
232
233 /* state table for configured state */
234 const uint8_t avdt_scb_st_conf[][AVDT_SCB_NUM_COLS] = {
235 /* Event */
236 /* Action 1 Action 2 Next state */
237 /* API_REMOVE_EVT */
238 {AVDT_SCB_SND_ABORT_REQ, AVDT_SCB_SET_REMOVE, AVDT_SCB_CONF_ST},
239 /* API_WRITE_REQ_EVT */
240 {AVDT_SCB_FREE_PKT, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
241 /* API_GETCONFIG_REQ_EVT */
242 {AVDT_SCB_SND_GETCONFIG_REQ, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
243 /* API_DELAY_RPT_REQ_EVT */
244 {AVDT_SCB_SND_DELAY_RPT_REQ, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
245 /* API_SETCONFIG_REQ_EVT */
246 {AVDT_SCB_CB_ERR, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
247 /* API_OPEN_REQ_EVT */
248 {AVDT_SCB_SND_OPEN_REQ, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
249 /* API_CLOSE_REQ_EVT */
250 {AVDT_SCB_SND_ABORT_REQ, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
251 /* API_RECONFIG_REQ_EVT */
252 {AVDT_SCB_CB_ERR, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
253 /* API_SECURITY_REQ_EVT */
254 {AVDT_SCB_SND_SECURITY_REQ, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
255 /* API_ABORT_REQ_EVT */
256 {AVDT_SCB_SND_ABORT_REQ, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
257 /* API_GETCONFIG_RSP_EVT */
258 {AVDT_SCB_SND_GETCONFIG_RSP, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
259 /* API_SETCONFIG_RSP_EVT */
260 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
261 /* API_SETCONFIG_REJ_EVT */
262 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
263 /* API_OPEN_RSP_EVT */
264 {AVDT_SCB_SND_OPEN_RSP, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
265 /* API_CLOSE_RSP_EVT */
266 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
267 /* API_RECONFIG_RSP_EVT */
268 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
269 /* API_SECURITY_RSP_EVT */
270 {AVDT_SCB_SND_SECURITY_RSP, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
271 /* API_ABORT_RSP_EVT */
272 {AVDT_SCB_SND_ABORT_RSP, AVDT_SCB_HDL_TC_CLOSE, AVDT_SCB_IDLE_ST},
273 /* MSG_SETCONFIG_CMD_EVT */
274 {AVDT_SCB_REJ_IN_USE, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
275 /* MSG_GETCONFIG_CMD_EVT */
276 {AVDT_SCB_HDL_GETCONFIG_CMD, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
277 /* MSG_OPEN_CMD_EVT */
278 {AVDT_SCB_HDL_OPEN_CMD, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
279 /* MSG_START_CMD_EVT */
280 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
281 /* MSG_SUSPEND_CMD_EVT */
282 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
283 /* MSG_CLOSE_CMD_EVT */
284 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
285 /* MSG_ABORT_CMD_EVT */
286 {AVDT_SCB_HDL_ABORT_CMD, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
287 /* MSG_RECONFIG_CMD_EVT */
288 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
289 /* MSG_SECURITY_CMD_EVT */
290 {AVDT_SCB_HDL_SECURITY_CMD, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
291 /* MSG_DELAY_RPT_CMD_EVT */
292 {AVDT_SCB_HDL_DELAY_RPT_CMD, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
293 /* MSG_DELAY_RPT_RSP_EVT */
294 {AVDT_SCB_HDL_DELAY_RPT_RSP, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
295 /* MSG_SETCONFIG_RSP_EVT */
296 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
297 /* MSG_GETCONFIG_RSP_EVT */
298 {AVDT_SCB_HDL_GETCONFIG_RSP, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
299 /* MSG_OPEN_RSP_EVT */
300 {AVDT_SCB_HDL_OPEN_RSP, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
301 /* MSG_START_RSP_EVT */
302 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
303 /* MSG_SUSPEND_RSP_EVT */
304 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
305 /* MSG_CLOSE_RSP_EVT */
306 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
307 /* MSG_ABORT_RSP_EVT */
308 {AVDT_SCB_HDL_ABORT_RSP, AVDT_SCB_HDL_TC_CLOSE, AVDT_SCB_IDLE_ST},
309 /* MSG_RECONFIG_RSP_EVT */
310 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
311 /* MSG_SECURITY_RSP_EVT */
312 {AVDT_SCB_HDL_SECURITY_RSP, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
313 /* MSG_SETCONFIG_REJ_EVT */
314 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
315 /* MSG_OPEN_REJ_EVT */
316 {AVDT_SCB_HDL_OPEN_REJ, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
317 /* MSG_START_REJ_EVT */
318 {AVDT_SCB_HDL_START_RSP, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
319 /* MSG_SUSPEND_REJ_EVT */
320 {AVDT_SCB_HDL_SUSPEND_RSP, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
321 /* TC_TOUT_EVT */
322 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
323 /* TC_OPEN_EVT */
324 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
325 /* TC_CLOSE_EVT */
326 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
327 /* TC_CONG_EVT */
328 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
329 /* TC_DATA_EVT */
330 {AVDT_SCB_DROP_PKT, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
331 /* CC_CLOSE_EVT */
332 {AVDT_SCB_HDL_TC_CLOSE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST}};
333
334 /* state table for opening state */
335 const uint8_t avdt_scb_st_opening[][AVDT_SCB_NUM_COLS] = {
336 /* Event */
337 /* Action 1 Action 2 Next state */
338 /* API_REMOVE_EVT */
339 {AVDT_SCB_SND_CLOSE_REQ, AVDT_SCB_SET_REMOVE, AVDT_SCB_CLOSING_ST},
340 /* API_WRITE_REQ_EVT */
341 {AVDT_SCB_FREE_PKT, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
342 /* API_GETCONFIG_REQ_EVT */
343 {AVDT_SCB_SND_GETCONFIG_REQ, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
344 /* API_DELAY_RPT_REQ_EVT */
345 {AVDT_SCB_SND_DELAY_RPT_REQ, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
346 /* API_SETCONFIG_REQ_EVT */
347 {AVDT_SCB_CB_ERR, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
348 /* API_OPEN_REQ_EVT */
349 {AVDT_SCB_CB_ERR, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
350 /* API_CLOSE_REQ_EVT */
351 {AVDT_SCB_SND_CLOSE_REQ, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
352 /* API_RECONFIG_REQ_EVT */
353 {AVDT_SCB_CB_ERR, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
354 /* API_SECURITY_REQ_EVT */
355 {AVDT_SCB_SND_SECURITY_REQ, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
356 /* API_ABORT_REQ_EVT */
357 {AVDT_SCB_SND_ABORT_REQ, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
358 /* API_GETCONFIG_RSP_EVT */
359 {AVDT_SCB_SND_GETCONFIG_RSP, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
360 /* API_SETCONFIG_RSP_EVT */
361 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
362 /* API_SETCONFIG_REJ_EVT */
363 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
364 /* API_OPEN_RSP_EVT */
365 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
366 /* API_CLOSE_RSP_EVT */
367 {AVDT_SCB_SND_CLOSE_RSP, AVDT_SCB_SND_TC_CLOSE, AVDT_SCB_CLOSING_ST},
368 /* API_RECONFIG_RSP_EVT */
369 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
370 /* API_SECURITY_RSP_EVT */
371 {AVDT_SCB_SND_SECURITY_RSP, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
372 /* API_ABORT_RSP_EVT */
373 {AVDT_SCB_SND_ABORT_RSP, AVDT_SCB_SND_TC_CLOSE, AVDT_SCB_CLOSING_ST},
374 /* MSG_SETCONFIG_CMD_EVT */
375 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
376 /* MSG_GETCONFIG_CMD_EVT */
377 {AVDT_SCB_HDL_GETCONFIG_CMD, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
378 /* MSG_OPEN_CMD_EVT */
379 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
380 /* MSG_START_CMD_EVT */
381 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
382 /* MSG_SUSPEND_CMD_EVT */
383 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
384 /* MSG_CLOSE_CMD_EVT */
385 {AVDT_SCB_HDL_CLOSE_CMD, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
386 /* MSG_ABORT_CMD_EVT */
387 {AVDT_SCB_HDL_ABORT_CMD, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
388 /* MSG_RECONFIG_CMD_EVT */
389 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
390 /* MSG_SECURITY_CMD_EVT */
391 {AVDT_SCB_HDL_SECURITY_CMD, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
392 /* MSG_DELAY_RPT_CMD_EVT */
393 {AVDT_SCB_HDL_DELAY_RPT_CMD, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
394 /* MSG_DELAY_RPT_RSP_EVT */
395 {AVDT_SCB_HDL_DELAY_RPT_RSP, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
396 /* MSG_SETCONFIG_RSP_EVT */
397 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
398 /* MSG_GETCONFIG_RSP_EVT */
399 {AVDT_SCB_HDL_GETCONFIG_RSP, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
400 /* MSG_OPEN_RSP_EVT */
401 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
402 /* MSG_START_RSP_EVT */
403 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
404 /* MSG_SUSPEND_RSP_EVT */
405 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
406 /* MSG_CLOSE_RSP_EVT */
407 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
408 /* MSG_ABORT_RSP_EVT */
409 {AVDT_SCB_SND_TC_CLOSE, AVDT_SCB_HDL_ABORT_RSP, AVDT_SCB_CLOSING_ST},
410 /* MSG_RECONFIG_RSP_EVT */
411 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
412 /* MSG_SECURITY_RSP_EVT */
413 {AVDT_SCB_HDL_SECURITY_RSP, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
414 /* MSG_SETCONFIG_REJ_EVT */
415 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
416 /* MSG_OPEN_REJ_EVT */
417 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
418 /* MSG_START_REJ_EVT */
419 {AVDT_SCB_HDL_START_RSP, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
420 /* MSG_SUSPEND_REJ_EVT */
421 {AVDT_SCB_HDL_SUSPEND_RSP, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
422 /* TC_TOUT_EVT */
423 {AVDT_SCB_SND_ABORT_REQ, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
424 /* TC_OPEN_EVT */
425 {AVDT_SCB_HDL_TC_OPEN, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
426 /* TC_CLOSE_EVT */
427 {AVDT_SCB_HDL_TC_CLOSE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
428 /* TC_CONG_EVT */
429 {AVDT_SCB_CONG_STATE, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
430 /* TC_DATA_EVT */
431 {AVDT_SCB_DROP_PKT, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
432 /* CC_CLOSE_EVT */
433 {AVDT_SCB_SND_TC_CLOSE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST}};
434
435 /* state table for open state */
436 const uint8_t avdt_scb_st_open[][AVDT_SCB_NUM_COLS] = {
437 /* Event */
438 /* Action 1 Action 2 Next state */
439 /* API_REMOVE_EVT */
440 {AVDT_SCB_SND_CLOSE_REQ, AVDT_SCB_SET_REMOVE, AVDT_SCB_CLOSING_ST},
441 /* API_WRITE_REQ_EVT */
442 {AVDT_SCB_FREE_PKT, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
443 /* API_GETCONFIG_REQ_EVT */
444 {AVDT_SCB_SND_GETCONFIG_REQ, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
445 /* API_DELAY_RPT_REQ_EVT */
446 {AVDT_SCB_SND_DELAY_RPT_REQ, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
447 /* API_SETCONFIG_REQ_EVT */
448 {AVDT_SCB_CB_ERR, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
449 /* API_OPEN_REQ_EVT */
450 {AVDT_SCB_CB_ERR, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
451 /* API_CLOSE_REQ_EVT */
452 {AVDT_SCB_SND_CLOSE_REQ, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
453 /* API_RECONFIG_REQ_EVT */
454 {AVDT_SCB_SND_RECONFIG_REQ, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
455 /* API_SECURITY_REQ_EVT */
456 {AVDT_SCB_SND_SECURITY_REQ, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
457 /* API_ABORT_REQ_EVT */
458 {AVDT_SCB_SND_ABORT_REQ, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
459 /* API_GETCONFIG_RSP_EVT */
460 {AVDT_SCB_SND_GETCONFIG_RSP, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
461 /* API_SETCONFIG_RSP_EVT */
462 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
463 /* API_SETCONFIG_REJ_EVT */
464 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
465 /* API_OPEN_RSP_EVT */
466 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
467 /* API_CLOSE_RSP_EVT */
468 {AVDT_SCB_SND_CLOSE_RSP, AVDT_SCB_TC_TIMER, AVDT_SCB_CLOSING_ST},
469 /* API_RECONFIG_RSP_EVT */
470 {AVDT_SCB_SND_RECONFIG_RSP, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
471 /* API_SECURITY_RSP_EVT */
472 {AVDT_SCB_SND_SECURITY_RSP, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
473 /* API_ABORT_RSP_EVT */
474 {AVDT_SCB_SND_ABORT_RSP, AVDT_SCB_TC_TIMER, AVDT_SCB_CLOSING_ST},
475 /* MSG_SETCONFIG_CMD_EVT */
476 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
477 /* MSG_GETCONFIG_CMD_EVT */
478 {AVDT_SCB_HDL_GETCONFIG_CMD, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
479 /* MSG_OPEN_CMD_EVT */
480 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
481 /* MSG_START_CMD_EVT */
482 {AVDT_SCB_HDL_START_CMD, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
483 /* MSG_SUSPEND_CMD_EVT */
484 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
485 /* MSG_CLOSE_CMD_EVT */
486 {AVDT_SCB_HDL_CLOSE_CMD, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
487 /* MSG_ABORT_CMD_EVT */
488 {AVDT_SCB_HDL_ABORT_CMD, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
489 /* MSG_RECONFIG_CMD_EVT */
490 {AVDT_SCB_HDL_RECONFIG_CMD, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
491 /* MSG_SECURITY_CMD_EVT */
492 {AVDT_SCB_HDL_SECURITY_CMD, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
493 /* MSG_DELAY_RPT_CMD_EVT */
494 {AVDT_SCB_HDL_DELAY_RPT_CMD, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
495 /* MSG_DELAY_RPT_RSP_EVT */
496 {AVDT_SCB_HDL_DELAY_RPT_RSP, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
497 /* MSG_SETCONFIG_RSP_EVT */
498 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
499 /* MSG_GETCONFIG_RSP_EVT */
500 {AVDT_SCB_HDL_GETCONFIG_RSP, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
501 /* MSG_OPEN_RSP_EVT */
502 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
503 /* MSG_START_RSP_EVT */
504 {AVDT_SCB_HDL_START_RSP, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
505 /* MSG_SUSPEND_RSP_EVT */
506 {AVDT_SCB_HDL_SUSPEND_RSP, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
507 /* MSG_CLOSE_RSP_EVT */
508 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
509 /* MSG_ABORT_RSP_EVT */
510 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
511 /* MSG_RECONFIG_RSP_EVT */
512 {AVDT_SCB_HDL_RECONFIG_RSP, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
513 /* MSG_SECURITY_RSP_EVT */
514 {AVDT_SCB_HDL_SECURITY_RSP, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
515 /* MSG_SETCONFIG_REJ_EVT */
516 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
517 /* MSG_OPEN_REJ_EVT */
518 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
519 /* MSG_START_REJ_EVT */
520 {AVDT_SCB_HDL_START_RSP, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
521 /* MSG_SUSPEND_REJ_EVT */
522 {AVDT_SCB_HDL_SUSPEND_RSP, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
523 /* TC_TOUT_EVT */
524 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
525 /* TC_OPEN_EVT */
526 {AVDT_SCB_HDL_TC_OPEN_STO, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
527 /* TC_CLOSE_EVT */
528 {AVDT_SCB_HDL_TC_CLOSE_STO, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
529 /* TC_CONG_EVT */
530 {AVDT_SCB_CONG_STATE, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
531 /* TC_DATA_EVT */
532 {AVDT_SCB_DROP_PKT, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
533 /* CC_CLOSE_EVT */
534 {AVDT_SCB_SND_TC_CLOSE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST}};
535
536 /* state table for streaming state */
537 const uint8_t avdt_scb_st_stream[][AVDT_SCB_NUM_COLS] = {
538 /* Event */
539 /* Action 1 Action 2 Next state */
540 /* API_REMOVE_EVT */
541 {AVDT_SCB_SND_STREAM_CLOSE, AVDT_SCB_SET_REMOVE, AVDT_SCB_CLOSING_ST},
542 /* API_WRITE_REQ_EVT */
543 {AVDT_SCB_HDL_WRITE_REQ, AVDT_SCB_CHK_SND_PKT, AVDT_SCB_STREAM_ST},
544 /* API_GETCONFIG_REQ_EVT */
545 {AVDT_SCB_SND_GETCONFIG_REQ, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
546 /* API_DELAY_RPT_REQ_EVT */
547 {AVDT_SCB_SND_DELAY_RPT_REQ, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
548 /* API_SETCONFIG_REQ_EVT */
549 {AVDT_SCB_CB_ERR, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
550 /* API_OPEN_REQ_EVT */
551 {AVDT_SCB_CB_ERR, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
552 /* API_CLOSE_REQ_EVT */
553 {AVDT_SCB_SND_STREAM_CLOSE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
554 /* API_RECONFIG_REQ_EVT */
555 {AVDT_SCB_CB_ERR, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
556 /* API_SECURITY_REQ_EVT */
557 {AVDT_SCB_SND_SECURITY_REQ, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
558 /* API_ABORT_REQ_EVT */
559 {AVDT_SCB_SND_ABORT_REQ, AVDT_SCB_CLR_PKT, AVDT_SCB_CLOSING_ST},
560 /* API_GETCONFIG_RSP_EVT */
561 {AVDT_SCB_SND_GETCONFIG_RSP, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
562 /* API_SETCONFIG_RSP_EVT */
563 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
564 /* API_SETCONFIG_REJ_EVT */
565 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
566 /* API_OPEN_RSP_EVT */
567 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
568 /* API_CLOSE_RSP_EVT */
569 {AVDT_SCB_SND_CLOSE_RSP, AVDT_SCB_TC_TIMER, AVDT_SCB_CLOSING_ST},
570 /* API_RECONFIG_RSP_EVT */
571 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
572 /* API_SECURITY_RSP_EVT */
573 {AVDT_SCB_SND_SECURITY_RSP, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
574 /* API_ABORT_RSP_EVT */
575 {AVDT_SCB_SND_ABORT_RSP, AVDT_SCB_TC_TIMER, AVDT_SCB_CLOSING_ST},
576 /* MSG_SETCONFIG_CMD_EVT */
577 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
578 /* MSG_GETCONFIG_CMD_EVT */
579 {AVDT_SCB_HDL_GETCONFIG_CMD, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
580 /* MSG_OPEN_CMD_EVT */
581 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
582 /* MSG_START_CMD_EVT */
583 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
584 /* MSG_SUSPEND_CMD_EVT */
585 {AVDT_SCB_HDL_SUSPEND_CMD, AVDT_SCB_CLR_PKT, AVDT_SCB_OPEN_ST},
586 /* MSG_CLOSE_CMD_EVT */
587 {AVDT_SCB_HDL_CLOSE_CMD, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
588 /* MSG_ABORT_CMD_EVT */
589 {AVDT_SCB_HDL_ABORT_CMD, AVDT_SCB_CLR_PKT, AVDT_SCB_STREAM_ST},
590 /* MSG_RECONFIG_CMD_EVT */
591 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
592 /* MSG_SECURITY_CMD_EVT */
593 {AVDT_SCB_HDL_SECURITY_CMD, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
594 /* MSG_DELAY_RPT_CMD_EVT */
595 {AVDT_SCB_HDL_DELAY_RPT_CMD, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
596 /* MSG_DELAY_RPT_RSP_EVT */
597 {AVDT_SCB_HDL_DELAY_RPT_RSP, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
598 /* MSG_SETCONFIG_RSP_EVT */
599 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
600 /* MSG_GETCONFIG_RSP_EVT */
601 {AVDT_SCB_HDL_GETCONFIG_RSP, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
602 /* MSG_OPEN_RSP_EVT */
603 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
604 /* MSG_START_RSP_EVT */
605 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
606 /* MSG_SUSPEND_RSP_EVT */
607 {AVDT_SCB_HDL_SUSPEND_RSP, AVDT_SCB_CLR_PKT, AVDT_SCB_OPEN_ST},
608 /* MSG_CLOSE_RSP_EVT */
609 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
610 /* MSG_ABORT_RSP_EVT */
611 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
612 /* MSG_RECONFIG_RSP_EVT */
613 {AVDT_SCB_HDL_RECONFIG_RSP, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
614 /* MSG_SECURITY_RSP_EVT */
615 {AVDT_SCB_HDL_SECURITY_RSP, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
616 /* MSG_SETCONFIG_REJ_EVT */
617 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
618 /* MSG_OPEN_REJ_EVT */
619 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
620 /* MSG_START_REJ_EVT */
621 {AVDT_SCB_HDL_START_RSP, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
622 /* MSG_SUSPEND_REJ_EVT */
623 {AVDT_SCB_HDL_SUSPEND_RSP, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
624 /* TC_TOUT_EVT */
625 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
626 /* TC_OPEN_EVT */
627 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
628 /* TC_CLOSE_EVT */
629 {AVDT_SCB_HDL_TC_CLOSE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
630 /* TC_CONG_EVT */
631 {AVDT_SCB_CONG_STATE, AVDT_SCB_CHK_SND_PKT, AVDT_SCB_STREAM_ST},
632 /* TC_DATA_EVT */
633 {AVDT_SCB_HDL_PKT, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
634 /* CC_CLOSE_EVT */
635 {AVDT_SCB_SND_TC_CLOSE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST}};
636
637 /* state table for closing state */
638 const uint8_t avdt_scb_st_closing[][AVDT_SCB_NUM_COLS] = {
639 /* Event */
640 /* Action 1 Action 2 Next state */
641 /* API_REMOVE_EVT */
642 {AVDT_SCB_SET_REMOVE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
643 /* API_WRITE_REQ_EVT */
644 {AVDT_SCB_FREE_PKT, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
645 /* API_GETCONFIG_REQ_EVT */
646 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
647 /* API_DELAY_RPT_REQ_EVT */
648 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
649 /* API_SETCONFIG_REQ_EVT */
650 {AVDT_SCB_CB_ERR, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
651 /* API_OPEN_REQ_EVT */
652 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
653 /* API_CLOSE_REQ_EVT */
654 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
655 /* API_RECONFIG_REQ_EVT */
656 {AVDT_SCB_CB_ERR, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
657 /* API_SECURITY_REQ_EVT */
658 {AVDT_SCB_CB_ERR, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
659 /* API_ABORT_REQ_EVT */
660 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
661 /* API_GETCONFIG_RSP_EVT */
662 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
663 /* API_SETCONFIG_RSP_EVT */
664 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
665 /* API_SETCONFIG_REJ_EVT */
666 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
667 /* API_OPEN_RSP_EVT */
668 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
669 /* API_CLOSE_RSP_EVT */
670 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
671 /* API_RECONFIG_RSP_EVT */
672 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
673 /* API_SECURITY_RSP_EVT */
674 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
675 /* API_ABORT_RSP_EVT */
676 {AVDT_SCB_SND_ABORT_RSP, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
677 /* MSG_SETCONFIG_CMD_EVT */
678 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
679 /* MSG_GETCONFIG_CMD_EVT */
680 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
681 /* MSG_OPEN_CMD_EVT */
682 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
683 /* MSG_START_CMD_EVT */
684 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
685 /* MSG_SUSPEND_CMD_EVT */
686 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
687 /* MSG_CLOSE_CMD_EVT */
688 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
689 /* MSG_ABORT_CMD_EVT */
690 {AVDT_SCB_HDL_ABORT_CMD, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
691 /* MSG_RECONFIG_CMD_EVT */
692 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
693 /* MSG_SECURITY_CMD_EVT */
694 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
695 /* MSG_DELAY_RPT_CMD_EVT */
696 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
697 /* MSG_DELAY_RPT_RSP_EVT */
698 {AVDT_SCB_HDL_DELAY_RPT_RSP, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
699 /* MSG_SETCONFIG_RSP_EVT */
700 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
701 /* MSG_GETCONFIG_RSP_EVT */
702 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
703 /* MSG_OPEN_RSP_EVT */
704 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
705 /* MSG_START_RSP_EVT */
706 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
707 /* MSG_SUSPEND_RSP_EVT */
708 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
709 /* MSG_CLOSE_RSP_EVT */
710 {AVDT_SCB_SND_TC_CLOSE, AVDT_SCB_HDL_CLOSE_RSP, AVDT_SCB_CLOSING_ST},
711 /* MSG_ABORT_RSP_EVT */
712 {AVDT_SCB_SND_TC_CLOSE, AVDT_SCB_HDL_ABORT_RSP, AVDT_SCB_CLOSING_ST},
713 /* MSG_RECONFIG_RSP_EVT */
714 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
715 /* MSG_SECURITY_RSP_EVT */
716 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
717 /* MSG_SETCONFIG_REJ_EVT */
718 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
719 /* MSG_OPEN_REJ_EVT */
720 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
721 /* MSG_START_REJ_EVT */
722 {AVDT_SCB_HDL_START_RSP, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
723 /* MSG_SUSPEND_REJ_EVT */
724 {AVDT_SCB_HDL_SUSPEND_RSP, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
725 /* TC_TOUT_EVT */
726 {AVDT_SCB_SND_TC_CLOSE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
727 /* TC_OPEN_EVT */
728 {AVDT_SCB_SND_TC_CLOSE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
729 /* TC_CLOSE_EVT */
730 {AVDT_SCB_HDL_TC_CLOSE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
731 /* TC_CONG_EVT */
732 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
733 /* TC_DATA_EVT */
734 {AVDT_SCB_DROP_PKT, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
735 /* CC_CLOSE_EVT */
736 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST}};
737
738 /* type for state table */
739 typedef const uint8_t (*tAVDT_SCB_ST_TBL)[AVDT_SCB_NUM_COLS];
740
741 /* state table */
742 const tAVDT_SCB_ST_TBL avdt_scb_st_tbl[] = {
743 avdt_scb_st_idle, avdt_scb_st_conf, avdt_scb_st_opening,
744 avdt_scb_st_open, avdt_scb_st_stream, avdt_scb_st_closing};
745
746 /*******************************************************************************
747 *
748 * Function avdt_scb_event
749 *
750 * Description State machine event handling function for scb
751 *
752 *
753 * Returns Nothing.
754 *
755 ******************************************************************************/
avdt_scb_event(AvdtpScb * p_scb,uint8_t event,tAVDT_SCB_EVT * p_data)756 void avdt_scb_event(AvdtpScb* p_scb, uint8_t event, tAVDT_SCB_EVT* p_data) {
757 tAVDT_SCB_ST_TBL state_table;
758 uint8_t action;
759
760 #if (AVDT_DEBUG == TRUE)
761 AVDT_TRACE_EVENT(
762 "%s: SCB hdl=%d event=%d/%s state=%s p_avdt_scb=%p scb_index=%d",
763 __func__, avdt_scb_to_hdl(p_scb), event, avdt_scb_evt_str[event],
764 avdt_scb_st_str[p_scb->state], p_scb, p_scb->stream_config.scb_index);
765 #endif
766
767 /* Check that we only send AVDT_SCB_API_WRITE_REQ_EVT to the active stream
768 * device */
769 uint8_t num_st_streams = 0;
770 int ccb_index = -1;
771 int scb_index = -1;
772
773 for (int i = 0; i < AVDT_NUM_LINKS; i++) {
774 for (int j = 0; j < AVDT_NUM_SEPS; j++) {
775 AvdtpScb* p_avdt_scb = &avdtp_cb.ccb[i].scb[j];
776 if (p_avdt_scb->allocated &&
777 avdt_scb_st_tbl[p_avdt_scb->state] == avdt_scb_st_stream) {
778 num_st_streams++;
779 ccb_index = i;
780 scb_index = j;
781 } else {
782 p_avdt_scb->curr_stream = false;
783 }
784 }
785 }
786
787 if (num_st_streams == 1) {
788 avdtp_cb.ccb[ccb_index].scb[scb_index].curr_stream = true;
789 } else if (num_st_streams > 1 && !p_scb->curr_stream &&
790 event == AVDT_SCB_API_WRITE_REQ_EVT) {
791 AVDT_TRACE_ERROR("%s: ignore AVDT_SCB_API_WRITE_REQ_EVT", __func__);
792 avdt_scb_free_pkt(p_scb, p_data);
793 return;
794 }
795
796 /* set current event */
797 p_scb->curr_evt = event;
798
799 /* look up the state table for the current state */
800 state_table = avdt_scb_st_tbl[p_scb->state];
801
802 /* set next state */
803 if (p_scb->state != state_table[event][AVDT_SCB_NEXT_STATE]) {
804 p_scb->state = state_table[event][AVDT_SCB_NEXT_STATE];
805 }
806
807 /* execute action functions */
808 for (int i = 0; i < AVDT_SCB_ACTIONS; i++) {
809 action = state_table[event][i];
810 if (action != AVDT_SCB_IGNORE) {
811 (*avdtp_cb.p_scb_act[action])(p_scb, p_data);
812 } else {
813 break;
814 }
815 }
816 }
817
818 /*******************************************************************************
819 *
820 * Function avdt_scb_init
821 *
822 * Description Initialize stream control block module.
823 *
824 *
825 * Returns Nothing.
826 *
827 ******************************************************************************/
avdt_scb_init(void)828 void avdt_scb_init(void) {
829 for (size_t i = 0; i < AVDT_NUM_LINKS; i++) {
830 for (size_t j = 0; j < AVDT_NUM_SEPS; j++) {
831 avdtp_cb.ccb[i].scb[j].Reset(0);
832 }
833 }
834
835 avdtp_cb.p_scb_act = avdt_scb_action;
836 }
837
838 /*******************************************************************************
839 *
840 * Function avdt_scb_alloc
841 *
842 * Description Allocate a stream control block.
843 *
844 *
845 * Returns pointer to the scb, or NULL if none could be allocated.
846 *
847 ******************************************************************************/
avdt_scb_alloc(uint8_t peer_id,const AvdtpStreamConfig & avdtp_stream_config)848 AvdtpScb* avdt_scb_alloc(uint8_t peer_id,
849 const AvdtpStreamConfig& avdtp_stream_config) {
850 CHECK(peer_id < AVDT_NUM_LINKS);
851
852 // Find available entry
853 AvdtpScb* p_scb = &avdtp_cb.ccb[peer_id].scb[0];
854 for (int i = 0; i < AVDT_NUM_SEPS; i++, p_scb++) {
855 if (!p_scb->allocated) {
856 p_scb->Allocate(&avdtp_cb.ccb[peer_id], avdtp_stream_config);
857 AVDT_TRACE_DEBUG("%s: allocated (handle=%d, psc_mask:0x%x)", __func__,
858 p_scb->ScbHandle(), avdtp_stream_config.cfg.psc_mask);
859 return p_scb;
860 }
861 }
862
863 AVDT_TRACE_WARNING("%s: out of AvdtScb entries for peer_id %d", __func__,
864 peer_id);
865 return nullptr;
866 }
867
Allocate(AvdtpCcb * p_avdtp_ccb,const AvdtpStreamConfig & avdtp_stream_config)868 void AvdtpScb::Allocate(AvdtpCcb* p_avdtp_ccb,
869 const AvdtpStreamConfig& avdtp_stream_config) {
870 uint8_t scb_handle = avdtp_cb.ComputeScbHandle(this);
871 Reset(scb_handle);
872 p_ccb = p_avdtp_ccb;
873 stream_config = avdtp_stream_config;
874 transport_channel_timer = alarm_new("avdtp_scb.transport_channel_timer");
875 allocated = true;
876 }
877
878 /*******************************************************************************
879 *
880 * Function avdt_scb_dealloc
881 *
882 * Description Deallocate a stream control block.
883 *
884 *
885 * Returns void.
886 *
887 ******************************************************************************/
avdt_scb_dealloc(AvdtpScb * p_scb,UNUSED_ATTR tAVDT_SCB_EVT * p_data)888 void avdt_scb_dealloc(AvdtpScb* p_scb, UNUSED_ATTR tAVDT_SCB_EVT* p_data) {
889 AVDT_TRACE_DEBUG("%s: hdl=%d", __func__, avdt_scb_to_hdl(p_scb));
890 p_scb->Recycle();
891 }
892
893 /*******************************************************************************
894 *
895 * Function avdt_scb_to_hdl
896 *
897 * Description Given a pointer to an scb, return its handle (or seid).
898 *
899 *
900 * Returns Index of scb.
901 *
902 ******************************************************************************/
avdt_scb_to_hdl(AvdtpScb * p_scb)903 uint8_t avdt_scb_to_hdl(AvdtpScb* p_scb) { return p_scb->ScbHandle(); }
904
905 /*******************************************************************************
906 *
907 * Function avdt_scb_by_hdl
908 *
909 * Description Given an scb handle (or seid), return a pointer to the scb.
910 *
911 *
912 * Returns Pointer to scb or NULL if index is out of range or scb
913 * is not allocated.
914 *
915 ******************************************************************************/
avdt_scb_by_hdl(uint8_t hdl)916 AvdtpScb* avdt_scb_by_hdl(uint8_t hdl) {
917 // Verify the index
918 if ((hdl < 1) || (hdl > AVDT_NUM_LINKS * AVDT_NUM_SEPS)) {
919 AVDT_TRACE_WARNING("%s: SCB handle %d out of range", __func__, hdl);
920 return nullptr;
921 }
922
923 uint8_t index = hdl - 1;
924 size_t i = index / AVDT_NUM_SEPS;
925 size_t j = index % AVDT_NUM_SEPS;
926
927 AvdtpScb* p_scb = &avdtp_cb.ccb[i].scb[j];
928 // Verify the whether the scb is allocated
929 if (!p_scb->allocated) {
930 AVDT_TRACE_WARNING("%s: SCB handle %d not allocated", __func__, hdl);
931 return nullptr;
932 }
933
934 AVDT_TRACE_DEBUG("%s: SCB for handle %d found: p_scb=%p scb_index=%d",
935 __func__, hdl, p_scb, p_scb->stream_config.scb_index);
936 return p_scb;
937 }
938
939 /*******************************************************************************
940 *
941 * Function avdt_scb_verify
942 *
943 * Description Verify the condition of a list of scbs.
944 *
945 *
946 * Returns SEID that failed, or 0 if success.
947 *
948 ******************************************************************************/
avdt_scb_verify(AvdtpCcb * p_ccb,uint8_t state,uint8_t * p_seid,uint16_t num_seid,uint8_t * p_err_code)949 uint8_t avdt_scb_verify(AvdtpCcb* p_ccb, uint8_t state, uint8_t* p_seid,
950 uint16_t num_seid, uint8_t* p_err_code) {
951 AVDT_TRACE_DEBUG("avdt_scb_verify state %d", state);
952 /* set nonsupported command mask */
953 /* translate public state into private state */
954 uint8_t nsc_mask = 0;
955 if (state == AVDT_VERIFY_SUSPEND) {
956 nsc_mask = AvdtpStreamConfig::AVDT_NSC_SUSPEND;
957 }
958
959 /* verify every scb */
960 *p_err_code = 0;
961 for (int i = 0; (i < num_seid) && (i < AVDT_NUM_SEPS); i++) {
962 AvdtpScb* p_scb = avdt_scb_by_hdl(p_seid[i]);
963 if (p_scb == NULL) {
964 *p_err_code = AVDT_ERR_BAD_STATE;
965 return p_seid[i];
966 }
967
968 if (p_scb->p_ccb != p_ccb) {
969 *p_err_code = AVDT_ERR_BAD_STATE;
970 return p_seid[i];
971 }
972
973 if (p_scb->stream_config.nsc_mask & nsc_mask) {
974 *p_err_code = AVDT_ERR_NSC;
975 return p_seid[i];
976 }
977
978 switch (state) {
979 case AVDT_VERIFY_OPEN:
980 case AVDT_VERIFY_START:
981 if (p_scb->state != AVDT_SCB_OPEN_ST &&
982 p_scb->state != AVDT_SCB_STREAM_ST) {
983 *p_err_code = AVDT_ERR_BAD_STATE;
984 return p_seid[i];
985 }
986 break;
987
988 case AVDT_VERIFY_SUSPEND:
989 case AVDT_VERIFY_STREAMING:
990 if (p_scb->state != AVDT_SCB_STREAM_ST) {
991 *p_err_code = AVDT_ERR_BAD_STATE;
992 return p_seid[i];
993 }
994 break;
995 }
996 }
997
998 return 0;
999 }
1000
1001 /*******************************************************************************
1002 *
1003 * Function avdt_scb_peer_seid_list
1004 *
1005 * Description Given a list of SCB handles, return a list of peer SEIDs
1006 * for the handles, copied in place into the struct passed in.
1007 *
1008 *
1009 * Returns Nothing.
1010 *
1011 ******************************************************************************/
avdt_scb_peer_seid_list(tAVDT_MULTI * p_multi)1012 void avdt_scb_peer_seid_list(tAVDT_MULTI* p_multi) {
1013 int i;
1014 AvdtpScb* p_scb;
1015
1016 for (i = 0; i < p_multi->num_seps; i++) {
1017 p_scb = avdt_scb_by_hdl(p_multi->seid_list[i]);
1018 if (p_scb != NULL) {
1019 p_multi->seid_list[i] = p_scb->peer_seid;
1020 }
1021 }
1022 }
1023