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