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_snk_delay_rpt_req,
116 avdt_scb_snd_tc_close,
117 avdt_scb_cb_err,
118 avdt_scb_cong_state,
119 avdt_scb_rej_state,
120 avdt_scb_rej_in_use,
121 avdt_scb_rej_not_in_use,
122 avdt_scb_set_remove,
123 avdt_scb_free_pkt,
124 avdt_scb_clr_pkt,
125 avdt_scb_chk_snd_pkt,
126 avdt_scb_transport_channel_timer,
127 avdt_scb_clr_vars,
128 avdt_scb_dealloc};
129
130 /* state table information */
131 #define AVDT_SCB_ACTIONS 2 /* number of actions */
132 #define AVDT_SCB_NEXT_STATE 2 /* position of next state */
133 #define AVDT_SCB_NUM_COLS 3 /* number of columns in state tables */
134
135 /* state table for idle state */
136 const uint8_t avdt_scb_st_idle[][AVDT_SCB_NUM_COLS] = {
137 /* Event */
138 /* Action 1 Action 2 Next state */
139 /* API_REMOVE_EVT */
140 {AVDT_SCB_DEALLOC, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
141 /* API_WRITE_REQ_EVT */
142 {AVDT_SCB_FREE_PKT, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
143 /* API_GETCONFIG_REQ_EVT */
144 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
145 /* API_DELAY_RPT_REQ_EVT */
146 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
147 /* API_SETCONFIG_REQ_EVT */
148 {AVDT_SCB_SND_SETCONFIG_REQ, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
149 /* API_OPEN_REQ_EVT */
150 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
151 /* API_CLOSE_REQ_EVT */
152 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
153 /* API_RECONFIG_REQ_EVT */
154 {AVDT_SCB_CB_ERR, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
155 /* API_SECURITY_REQ_EVT */
156 {AVDT_SCB_CB_ERR, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
157 /* API_ABORT_REQ_EVT */
158 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
159 /* API_GETCONFIG_RSP_EVT */
160 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
161 /* API_SETCONFIG_RSP_EVT */
162 {AVDT_SCB_SND_SETCONFIG_RSP, AVDT_SCB_SND_SNK_DELAY_RPT_REQ, AVDT_SCB_CONF_ST},
163 /* API_SETCONFIG_REJ_EVT */
164 {AVDT_SCB_SND_SETCONFIG_REJ, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
165 /* API_OPEN_RSP_EVT */
166 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
167 /* API_CLOSE_RSP_EVT */
168 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
169 /* API_RECONFIG_RSP_EVT */
170 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
171 /* API_SECURITY_RSP_EVT */
172 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
173 /* API_ABORT_RSP_EVT */
174 {AVDT_SCB_SND_ABORT_RSP, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
175 /* MSG_SETCONFIG_CMD_EVT */
176 {AVDT_SCB_HDL_SETCONFIG_CMD, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
177 /* MSG_GETCONFIG_CMD_EVT */
178 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
179 /* MSG_OPEN_CMD_EVT */
180 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
181 /* MSG_START_CMD_EVT */
182 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
183 /* MSG_SUSPEND_CMD_EVT */
184 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
185 /* MSG_CLOSE_CMD_EVT */
186 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
187 /* MSG_ABORT_CMD_EVT */
188 {AVDT_SCB_HDL_ABORT_CMD, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
189 /* MSG_RECONFIG_CMD_EVT */
190 {AVDT_SCB_REJ_NOT_IN_USE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
191 /* MSG_SECURITY_CMD_EVT */
192 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
193 /* MSG_DELAY_RPT_CMD_EVT */
194 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
195 /* MSG_DELAY_RPT_RSP_EVT */
196 {AVDT_SCB_HDL_DELAY_RPT_RSP, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
197 /* MSG_SETCONFIG_RSP_EVT */
198 {AVDT_SCB_HDL_SETCONFIG_RSP, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
199 /* MSG_GETCONFIG_RSP_EVT */
200 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
201 /* MSG_OPEN_RSP_EVT */
202 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
203 /* MSG_START_RSP_EVT */
204 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
205 /* MSG_SUSPEND_RSP_EVT */
206 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
207 /* MSG_CLOSE_RSP_EVT */
208 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
209 /* MSG_ABORT_RSP_EVT */
210 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
211 /* MSG_RECONFIG_RSP_EVT */
212 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
213 /* MSG_SECURITY_RSP_EVT */
214 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
215 /* MSG_SETCONFIG_REJ_EVT */
216 {AVDT_SCB_HDL_SETCONFIG_REJ, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
217 /* MSG_OPEN_REJ_EVT */
218 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
219 /* MSG_START_REJ_EVT */
220 {AVDT_SCB_HDL_START_RSP, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
221 /* MSG_SUSPEND_REJ_EVT */
222 {AVDT_SCB_HDL_SUSPEND_RSP, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
223 /* TC_TOUT_EVT */
224 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
225 /* TC_OPEN_EVT */
226 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
227 /* TC_CLOSE_EVT */
228 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
229 /* TC_CONG_EVT */
230 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
231 /* TC_DATA_EVT */
232 {AVDT_SCB_DROP_PKT, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
233 /* CC_CLOSE_EVT */
234 {AVDT_SCB_CLR_VARS, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST}};
235
236 /* state table for configured state */
237 const uint8_t avdt_scb_st_conf[][AVDT_SCB_NUM_COLS] = {
238 /* Event */
239 /* Action 1 Action 2 Next state */
240 /* API_REMOVE_EVT */
241 {AVDT_SCB_SND_ABORT_REQ, AVDT_SCB_SET_REMOVE, AVDT_SCB_CONF_ST},
242 /* API_WRITE_REQ_EVT */
243 {AVDT_SCB_FREE_PKT, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
244 /* API_GETCONFIG_REQ_EVT */
245 {AVDT_SCB_SND_GETCONFIG_REQ, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
246 /* API_DELAY_RPT_REQ_EVT */
247 {AVDT_SCB_SND_DELAY_RPT_REQ, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
248 /* API_SETCONFIG_REQ_EVT */
249 {AVDT_SCB_CB_ERR, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
250 /* API_OPEN_REQ_EVT */
251 {AVDT_SCB_SND_OPEN_REQ, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
252 /* API_CLOSE_REQ_EVT */
253 {AVDT_SCB_SND_ABORT_REQ, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
254 /* API_RECONFIG_REQ_EVT */
255 {AVDT_SCB_CB_ERR, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
256 /* API_SECURITY_REQ_EVT */
257 {AVDT_SCB_SND_SECURITY_REQ, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
258 /* API_ABORT_REQ_EVT */
259 {AVDT_SCB_SND_ABORT_REQ, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
260 /* API_GETCONFIG_RSP_EVT */
261 {AVDT_SCB_SND_GETCONFIG_RSP, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
262 /* API_SETCONFIG_RSP_EVT */
263 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
264 /* API_SETCONFIG_REJ_EVT */
265 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
266 /* API_OPEN_RSP_EVT */
267 {AVDT_SCB_SND_OPEN_RSP, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
268 /* API_CLOSE_RSP_EVT */
269 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
270 /* API_RECONFIG_RSP_EVT */
271 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
272 /* API_SECURITY_RSP_EVT */
273 {AVDT_SCB_SND_SECURITY_RSP, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
274 /* API_ABORT_RSP_EVT */
275 {AVDT_SCB_SND_ABORT_RSP, AVDT_SCB_HDL_TC_CLOSE, AVDT_SCB_IDLE_ST},
276 /* MSG_SETCONFIG_CMD_EVT */
277 {AVDT_SCB_REJ_IN_USE, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
278 /* MSG_GETCONFIG_CMD_EVT */
279 {AVDT_SCB_HDL_GETCONFIG_CMD, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
280 /* MSG_OPEN_CMD_EVT */
281 {AVDT_SCB_HDL_OPEN_CMD, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
282 /* MSG_START_CMD_EVT */
283 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
284 /* MSG_SUSPEND_CMD_EVT */
285 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
286 /* MSG_CLOSE_CMD_EVT */
287 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
288 /* MSG_ABORT_CMD_EVT */
289 {AVDT_SCB_HDL_ABORT_CMD, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
290 /* MSG_RECONFIG_CMD_EVT */
291 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
292 /* MSG_SECURITY_CMD_EVT */
293 {AVDT_SCB_HDL_SECURITY_CMD, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
294 /* MSG_DELAY_RPT_CMD_EVT */
295 {AVDT_SCB_HDL_DELAY_RPT_CMD, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
296 /* MSG_DELAY_RPT_RSP_EVT */
297 {AVDT_SCB_HDL_DELAY_RPT_RSP, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
298 /* MSG_SETCONFIG_RSP_EVT */
299 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
300 /* MSG_GETCONFIG_RSP_EVT */
301 {AVDT_SCB_HDL_GETCONFIG_RSP, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
302 /* MSG_OPEN_RSP_EVT */
303 {AVDT_SCB_HDL_OPEN_RSP, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
304 /* MSG_START_RSP_EVT */
305 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
306 /* MSG_SUSPEND_RSP_EVT */
307 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
308 /* MSG_CLOSE_RSP_EVT */
309 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
310 /* MSG_ABORT_RSP_EVT */
311 {AVDT_SCB_HDL_ABORT_RSP, AVDT_SCB_HDL_TC_CLOSE, AVDT_SCB_IDLE_ST},
312 /* MSG_RECONFIG_RSP_EVT */
313 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
314 /* MSG_SECURITY_RSP_EVT */
315 {AVDT_SCB_HDL_SECURITY_RSP, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
316 /* MSG_SETCONFIG_REJ_EVT */
317 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
318 /* MSG_OPEN_REJ_EVT */
319 {AVDT_SCB_HDL_OPEN_REJ, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
320 /* MSG_START_REJ_EVT */
321 {AVDT_SCB_HDL_START_RSP, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
322 /* MSG_SUSPEND_REJ_EVT */
323 {AVDT_SCB_HDL_SUSPEND_RSP, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
324 /* TC_TOUT_EVT */
325 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
326 /* TC_OPEN_EVT */
327 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
328 /* TC_CLOSE_EVT */
329 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
330 /* TC_CONG_EVT */
331 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
332 /* TC_DATA_EVT */
333 {AVDT_SCB_DROP_PKT, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
334 /* CC_CLOSE_EVT */
335 {AVDT_SCB_HDL_TC_CLOSE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST}};
336
337 /* state table for opening state */
338 const uint8_t avdt_scb_st_opening[][AVDT_SCB_NUM_COLS] = {
339 /* Event */
340 /* Action 1 Action 2 Next state */
341 /* API_REMOVE_EVT */
342 {AVDT_SCB_SND_CLOSE_REQ, AVDT_SCB_SET_REMOVE, AVDT_SCB_CLOSING_ST},
343 /* API_WRITE_REQ_EVT */
344 {AVDT_SCB_FREE_PKT, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
345 /* API_GETCONFIG_REQ_EVT */
346 {AVDT_SCB_SND_GETCONFIG_REQ, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
347 /* API_DELAY_RPT_REQ_EVT */
348 {AVDT_SCB_SND_DELAY_RPT_REQ, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
349 /* API_SETCONFIG_REQ_EVT */
350 {AVDT_SCB_CB_ERR, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
351 /* API_OPEN_REQ_EVT */
352 {AVDT_SCB_CB_ERR, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
353 /* API_CLOSE_REQ_EVT */
354 {AVDT_SCB_SND_CLOSE_REQ, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
355 /* API_RECONFIG_REQ_EVT */
356 {AVDT_SCB_CB_ERR, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
357 /* API_SECURITY_REQ_EVT */
358 {AVDT_SCB_SND_SECURITY_REQ, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
359 /* API_ABORT_REQ_EVT */
360 {AVDT_SCB_SND_ABORT_REQ, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
361 /* API_GETCONFIG_RSP_EVT */
362 {AVDT_SCB_SND_GETCONFIG_RSP, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
363 /* API_SETCONFIG_RSP_EVT */
364 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
365 /* API_SETCONFIG_REJ_EVT */
366 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
367 /* API_OPEN_RSP_EVT */
368 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
369 /* API_CLOSE_RSP_EVT */
370 {AVDT_SCB_SND_CLOSE_RSP, AVDT_SCB_SND_TC_CLOSE, AVDT_SCB_CLOSING_ST},
371 /* API_RECONFIG_RSP_EVT */
372 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
373 /* API_SECURITY_RSP_EVT */
374 {AVDT_SCB_SND_SECURITY_RSP, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
375 /* API_ABORT_RSP_EVT */
376 {AVDT_SCB_SND_ABORT_RSP, AVDT_SCB_SND_TC_CLOSE, AVDT_SCB_CLOSING_ST},
377 /* MSG_SETCONFIG_CMD_EVT */
378 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
379 /* MSG_GETCONFIG_CMD_EVT */
380 {AVDT_SCB_HDL_GETCONFIG_CMD, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
381 /* MSG_OPEN_CMD_EVT */
382 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
383 /* MSG_START_CMD_EVT */
384 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
385 /* MSG_SUSPEND_CMD_EVT */
386 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
387 /* MSG_CLOSE_CMD_EVT */
388 {AVDT_SCB_HDL_CLOSE_CMD, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
389 /* MSG_ABORT_CMD_EVT */
390 {AVDT_SCB_HDL_ABORT_CMD, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
391 /* MSG_RECONFIG_CMD_EVT */
392 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
393 /* MSG_SECURITY_CMD_EVT */
394 {AVDT_SCB_HDL_SECURITY_CMD, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
395 /* MSG_DELAY_RPT_CMD_EVT */
396 {AVDT_SCB_HDL_DELAY_RPT_CMD, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
397 /* MSG_DELAY_RPT_RSP_EVT */
398 {AVDT_SCB_HDL_DELAY_RPT_RSP, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
399 /* MSG_SETCONFIG_RSP_EVT */
400 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
401 /* MSG_GETCONFIG_RSP_EVT */
402 {AVDT_SCB_HDL_GETCONFIG_RSP, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
403 /* MSG_OPEN_RSP_EVT */
404 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
405 /* MSG_START_RSP_EVT */
406 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
407 /* MSG_SUSPEND_RSP_EVT */
408 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
409 /* MSG_CLOSE_RSP_EVT */
410 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
411 /* MSG_ABORT_RSP_EVT */
412 {AVDT_SCB_SND_TC_CLOSE, AVDT_SCB_HDL_ABORT_RSP, AVDT_SCB_CLOSING_ST},
413 /* MSG_RECONFIG_RSP_EVT */
414 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
415 /* MSG_SECURITY_RSP_EVT */
416 {AVDT_SCB_HDL_SECURITY_RSP, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
417 /* MSG_SETCONFIG_REJ_EVT */
418 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
419 /* MSG_OPEN_REJ_EVT */
420 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
421 /* MSG_START_REJ_EVT */
422 {AVDT_SCB_HDL_START_RSP, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
423 /* MSG_SUSPEND_REJ_EVT */
424 {AVDT_SCB_HDL_SUSPEND_RSP, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
425 /* TC_TOUT_EVT */
426 {AVDT_SCB_SND_ABORT_REQ, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
427 /* TC_OPEN_EVT */
428 {AVDT_SCB_HDL_TC_OPEN, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
429 /* TC_CLOSE_EVT */
430 {AVDT_SCB_HDL_TC_CLOSE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
431 /* TC_CONG_EVT */
432 {AVDT_SCB_CONG_STATE, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
433 /* TC_DATA_EVT */
434 {AVDT_SCB_DROP_PKT, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
435 /* CC_CLOSE_EVT */
436 {AVDT_SCB_SND_TC_CLOSE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST}};
437
438 /* state table for open state */
439 const uint8_t avdt_scb_st_open[][AVDT_SCB_NUM_COLS] = {
440 /* Event */
441 /* Action 1 Action 2 Next state */
442 /* API_REMOVE_EVT */
443 {AVDT_SCB_SND_CLOSE_REQ, AVDT_SCB_SET_REMOVE, AVDT_SCB_CLOSING_ST},
444 /* API_WRITE_REQ_EVT */
445 {AVDT_SCB_FREE_PKT, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
446 /* API_GETCONFIG_REQ_EVT */
447 {AVDT_SCB_SND_GETCONFIG_REQ, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
448 /* API_DELAY_RPT_REQ_EVT */
449 {AVDT_SCB_SND_DELAY_RPT_REQ, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
450 /* API_SETCONFIG_REQ_EVT */
451 {AVDT_SCB_CB_ERR, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
452 /* API_OPEN_REQ_EVT */
453 {AVDT_SCB_CB_ERR, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
454 /* API_CLOSE_REQ_EVT */
455 {AVDT_SCB_SND_CLOSE_REQ, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
456 /* API_RECONFIG_REQ_EVT */
457 {AVDT_SCB_SND_RECONFIG_REQ, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
458 /* API_SECURITY_REQ_EVT */
459 {AVDT_SCB_SND_SECURITY_REQ, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
460 /* API_ABORT_REQ_EVT */
461 {AVDT_SCB_SND_ABORT_REQ, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
462 /* API_GETCONFIG_RSP_EVT */
463 {AVDT_SCB_SND_GETCONFIG_RSP, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
464 /* API_SETCONFIG_RSP_EVT */
465 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
466 /* API_SETCONFIG_REJ_EVT */
467 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
468 /* API_OPEN_RSP_EVT */
469 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
470 /* API_CLOSE_RSP_EVT */
471 {AVDT_SCB_SND_CLOSE_RSP, AVDT_SCB_TC_TIMER, AVDT_SCB_CLOSING_ST},
472 /* API_RECONFIG_RSP_EVT */
473 {AVDT_SCB_SND_RECONFIG_RSP, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
474 /* API_SECURITY_RSP_EVT */
475 {AVDT_SCB_SND_SECURITY_RSP, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
476 /* API_ABORT_RSP_EVT */
477 {AVDT_SCB_SND_ABORT_RSP, AVDT_SCB_TC_TIMER, AVDT_SCB_CLOSING_ST},
478 /* MSG_SETCONFIG_CMD_EVT */
479 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
480 /* MSG_GETCONFIG_CMD_EVT */
481 {AVDT_SCB_HDL_GETCONFIG_CMD, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
482 /* MSG_OPEN_CMD_EVT */
483 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
484 /* MSG_START_CMD_EVT */
485 {AVDT_SCB_HDL_START_CMD, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
486 /* MSG_SUSPEND_CMD_EVT */
487 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
488 /* MSG_CLOSE_CMD_EVT */
489 {AVDT_SCB_HDL_CLOSE_CMD, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
490 /* MSG_ABORT_CMD_EVT */
491 {AVDT_SCB_HDL_ABORT_CMD, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
492 /* MSG_RECONFIG_CMD_EVT */
493 {AVDT_SCB_HDL_RECONFIG_CMD, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
494 /* MSG_SECURITY_CMD_EVT */
495 {AVDT_SCB_HDL_SECURITY_CMD, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
496 /* MSG_DELAY_RPT_CMD_EVT */
497 {AVDT_SCB_HDL_DELAY_RPT_CMD, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
498 /* MSG_DELAY_RPT_RSP_EVT */
499 {AVDT_SCB_HDL_DELAY_RPT_RSP, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
500 /* MSG_SETCONFIG_RSP_EVT */
501 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
502 /* MSG_GETCONFIG_RSP_EVT */
503 {AVDT_SCB_HDL_GETCONFIG_RSP, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
504 /* MSG_OPEN_RSP_EVT */
505 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
506 /* MSG_START_RSP_EVT */
507 {AVDT_SCB_HDL_START_RSP, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
508 /* MSG_SUSPEND_RSP_EVT */
509 {AVDT_SCB_HDL_SUSPEND_RSP, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
510 /* MSG_CLOSE_RSP_EVT */
511 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
512 /* MSG_ABORT_RSP_EVT */
513 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
514 /* MSG_RECONFIG_RSP_EVT */
515 {AVDT_SCB_HDL_RECONFIG_RSP, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
516 /* MSG_SECURITY_RSP_EVT */
517 {AVDT_SCB_HDL_SECURITY_RSP, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
518 /* MSG_SETCONFIG_REJ_EVT */
519 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
520 /* MSG_OPEN_REJ_EVT */
521 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
522 /* MSG_START_REJ_EVT */
523 {AVDT_SCB_HDL_START_RSP, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
524 /* MSG_SUSPEND_REJ_EVT */
525 {AVDT_SCB_HDL_SUSPEND_RSP, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
526 /* TC_TOUT_EVT */
527 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
528 /* TC_OPEN_EVT */
529 {AVDT_SCB_HDL_TC_OPEN_STO, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
530 /* TC_CLOSE_EVT */
531 {AVDT_SCB_HDL_TC_CLOSE_STO, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
532 /* TC_CONG_EVT */
533 {AVDT_SCB_CONG_STATE, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
534 /* TC_DATA_EVT */
535 {AVDT_SCB_DROP_PKT, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
536 /* CC_CLOSE_EVT */
537 {AVDT_SCB_SND_TC_CLOSE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST}};
538
539 /* state table for streaming state */
540 const uint8_t avdt_scb_st_stream[][AVDT_SCB_NUM_COLS] = {
541 /* Event */
542 /* Action 1 Action 2 Next state */
543 /* API_REMOVE_EVT */
544 {AVDT_SCB_SND_STREAM_CLOSE, AVDT_SCB_SET_REMOVE, AVDT_SCB_CLOSING_ST},
545 /* API_WRITE_REQ_EVT */
546 {AVDT_SCB_HDL_WRITE_REQ, AVDT_SCB_CHK_SND_PKT, AVDT_SCB_STREAM_ST},
547 /* API_GETCONFIG_REQ_EVT */
548 {AVDT_SCB_SND_GETCONFIG_REQ, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
549 /* API_DELAY_RPT_REQ_EVT */
550 {AVDT_SCB_SND_DELAY_RPT_REQ, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
551 /* API_SETCONFIG_REQ_EVT */
552 {AVDT_SCB_CB_ERR, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
553 /* API_OPEN_REQ_EVT */
554 {AVDT_SCB_CB_ERR, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
555 /* API_CLOSE_REQ_EVT */
556 {AVDT_SCB_SND_STREAM_CLOSE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
557 /* API_RECONFIG_REQ_EVT */
558 {AVDT_SCB_CB_ERR, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
559 /* API_SECURITY_REQ_EVT */
560 {AVDT_SCB_SND_SECURITY_REQ, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
561 /* API_ABORT_REQ_EVT */
562 {AVDT_SCB_SND_ABORT_REQ, AVDT_SCB_CLR_PKT, AVDT_SCB_CLOSING_ST},
563 /* API_GETCONFIG_RSP_EVT */
564 {AVDT_SCB_SND_GETCONFIG_RSP, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
565 /* API_SETCONFIG_RSP_EVT */
566 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
567 /* API_SETCONFIG_REJ_EVT */
568 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
569 /* API_OPEN_RSP_EVT */
570 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
571 /* API_CLOSE_RSP_EVT */
572 {AVDT_SCB_SND_CLOSE_RSP, AVDT_SCB_TC_TIMER, AVDT_SCB_CLOSING_ST},
573 /* API_RECONFIG_RSP_EVT */
574 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
575 /* API_SECURITY_RSP_EVT */
576 {AVDT_SCB_SND_SECURITY_RSP, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
577 /* API_ABORT_RSP_EVT */
578 {AVDT_SCB_SND_ABORT_RSP, AVDT_SCB_TC_TIMER, AVDT_SCB_CLOSING_ST},
579 /* MSG_SETCONFIG_CMD_EVT */
580 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
581 /* MSG_GETCONFIG_CMD_EVT */
582 {AVDT_SCB_HDL_GETCONFIG_CMD, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
583 /* MSG_OPEN_CMD_EVT */
584 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
585 /* MSG_START_CMD_EVT */
586 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
587 /* MSG_SUSPEND_CMD_EVT */
588 {AVDT_SCB_HDL_SUSPEND_CMD, AVDT_SCB_CLR_PKT, AVDT_SCB_OPEN_ST},
589 /* MSG_CLOSE_CMD_EVT */
590 {AVDT_SCB_HDL_CLOSE_CMD, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
591 /* MSG_ABORT_CMD_EVT */
592 {AVDT_SCB_HDL_ABORT_CMD, AVDT_SCB_CLR_PKT, AVDT_SCB_STREAM_ST},
593 /* MSG_RECONFIG_CMD_EVT */
594 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
595 /* MSG_SECURITY_CMD_EVT */
596 {AVDT_SCB_HDL_SECURITY_CMD, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
597 /* MSG_DELAY_RPT_CMD_EVT */
598 {AVDT_SCB_HDL_DELAY_RPT_CMD, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
599 /* MSG_DELAY_RPT_RSP_EVT */
600 {AVDT_SCB_HDL_DELAY_RPT_RSP, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
601 /* MSG_SETCONFIG_RSP_EVT */
602 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
603 /* MSG_GETCONFIG_RSP_EVT */
604 {AVDT_SCB_HDL_GETCONFIG_RSP, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
605 /* MSG_OPEN_RSP_EVT */
606 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
607 /* MSG_START_RSP_EVT */
608 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
609 /* MSG_SUSPEND_RSP_EVT */
610 {AVDT_SCB_HDL_SUSPEND_RSP, AVDT_SCB_CLR_PKT, AVDT_SCB_OPEN_ST},
611 /* MSG_CLOSE_RSP_EVT */
612 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
613 /* MSG_ABORT_RSP_EVT */
614 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
615 /* MSG_RECONFIG_RSP_EVT */
616 {AVDT_SCB_HDL_RECONFIG_RSP, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
617 /* MSG_SECURITY_RSP_EVT */
618 {AVDT_SCB_HDL_SECURITY_RSP, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
619 /* MSG_SETCONFIG_REJ_EVT */
620 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
621 /* MSG_OPEN_REJ_EVT */
622 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
623 /* MSG_START_REJ_EVT */
624 {AVDT_SCB_HDL_START_RSP, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
625 /* MSG_SUSPEND_REJ_EVT */
626 {AVDT_SCB_HDL_SUSPEND_RSP, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
627 /* TC_TOUT_EVT */
628 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
629 /* TC_OPEN_EVT */
630 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
631 /* TC_CLOSE_EVT */
632 {AVDT_SCB_HDL_TC_CLOSE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
633 /* TC_CONG_EVT */
634 {AVDT_SCB_CONG_STATE, AVDT_SCB_CHK_SND_PKT, AVDT_SCB_STREAM_ST},
635 /* TC_DATA_EVT */
636 {AVDT_SCB_HDL_PKT, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
637 /* CC_CLOSE_EVT */
638 {AVDT_SCB_SND_TC_CLOSE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST}};
639
640 /* state table for closing state */
641 const uint8_t avdt_scb_st_closing[][AVDT_SCB_NUM_COLS] = {
642 /* Event */
643 /* Action 1 Action 2 Next state */
644 /* API_REMOVE_EVT */
645 {AVDT_SCB_SET_REMOVE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
646 /* API_WRITE_REQ_EVT */
647 {AVDT_SCB_FREE_PKT, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
648 /* API_GETCONFIG_REQ_EVT */
649 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
650 /* API_DELAY_RPT_REQ_EVT */
651 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
652 /* API_SETCONFIG_REQ_EVT */
653 {AVDT_SCB_CB_ERR, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
654 /* API_OPEN_REQ_EVT */
655 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
656 /* API_CLOSE_REQ_EVT */
657 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
658 /* API_RECONFIG_REQ_EVT */
659 {AVDT_SCB_CB_ERR, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
660 /* API_SECURITY_REQ_EVT */
661 {AVDT_SCB_CB_ERR, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
662 /* API_ABORT_REQ_EVT */
663 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
664 /* API_GETCONFIG_RSP_EVT */
665 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
666 /* API_SETCONFIG_RSP_EVT */
667 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
668 /* API_SETCONFIG_REJ_EVT */
669 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
670 /* API_OPEN_RSP_EVT */
671 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
672 /* API_CLOSE_RSP_EVT */
673 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
674 /* API_RECONFIG_RSP_EVT */
675 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
676 /* API_SECURITY_RSP_EVT */
677 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
678 /* API_ABORT_RSP_EVT */
679 {AVDT_SCB_SND_ABORT_RSP, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
680 /* MSG_SETCONFIG_CMD_EVT */
681 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
682 /* MSG_GETCONFIG_CMD_EVT */
683 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
684 /* MSG_OPEN_CMD_EVT */
685 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
686 /* MSG_START_CMD_EVT */
687 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
688 /* MSG_SUSPEND_CMD_EVT */
689 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
690 /* MSG_CLOSE_CMD_EVT */
691 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
692 /* MSG_ABORT_CMD_EVT */
693 {AVDT_SCB_HDL_ABORT_CMD, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
694 /* MSG_RECONFIG_CMD_EVT */
695 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
696 /* MSG_SECURITY_CMD_EVT */
697 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
698 /* MSG_DELAY_RPT_CMD_EVT */
699 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
700 /* MSG_DELAY_RPT_RSP_EVT */
701 {AVDT_SCB_HDL_DELAY_RPT_RSP, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
702 /* MSG_SETCONFIG_RSP_EVT */
703 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
704 /* MSG_GETCONFIG_RSP_EVT */
705 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
706 /* MSG_OPEN_RSP_EVT */
707 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
708 /* MSG_START_RSP_EVT */
709 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
710 /* MSG_SUSPEND_RSP_EVT */
711 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
712 /* MSG_CLOSE_RSP_EVT */
713 {AVDT_SCB_SND_TC_CLOSE, AVDT_SCB_HDL_CLOSE_RSP, AVDT_SCB_CLOSING_ST},
714 /* MSG_ABORT_RSP_EVT */
715 {AVDT_SCB_SND_TC_CLOSE, AVDT_SCB_HDL_ABORT_RSP, AVDT_SCB_CLOSING_ST},
716 /* MSG_RECONFIG_RSP_EVT */
717 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
718 /* MSG_SECURITY_RSP_EVT */
719 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
720 /* MSG_SETCONFIG_REJ_EVT */
721 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
722 /* MSG_OPEN_REJ_EVT */
723 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
724 /* MSG_START_REJ_EVT */
725 {AVDT_SCB_HDL_START_RSP, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
726 /* MSG_SUSPEND_REJ_EVT */
727 {AVDT_SCB_HDL_SUSPEND_RSP, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
728 /* TC_TOUT_EVT */
729 {AVDT_SCB_SND_TC_CLOSE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
730 /* TC_OPEN_EVT */
731 {AVDT_SCB_SND_TC_CLOSE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
732 /* TC_CLOSE_EVT */
733 {AVDT_SCB_HDL_TC_CLOSE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
734 /* TC_CONG_EVT */
735 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
736 /* TC_DATA_EVT */
737 {AVDT_SCB_DROP_PKT, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
738 /* CC_CLOSE_EVT */
739 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST}};
740
741 /* type for state table */
742 typedef const uint8_t (*tAVDT_SCB_ST_TBL)[AVDT_SCB_NUM_COLS];
743
744 /* state table */
745 const tAVDT_SCB_ST_TBL avdt_scb_st_tbl[] = {
746 avdt_scb_st_idle, avdt_scb_st_conf, avdt_scb_st_opening,
747 avdt_scb_st_open, avdt_scb_st_stream, avdt_scb_st_closing};
748
749 /*******************************************************************************
750 *
751 * Function avdt_scb_event
752 *
753 * Description State machine event handling function for scb
754 *
755 *
756 * Returns Nothing.
757 *
758 ******************************************************************************/
avdt_scb_event(AvdtpScb * p_scb,uint8_t event,tAVDT_SCB_EVT * p_data)759 void avdt_scb_event(AvdtpScb* p_scb, uint8_t event, tAVDT_SCB_EVT* p_data) {
760 tAVDT_SCB_ST_TBL state_table;
761 uint8_t action;
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
770 /* Check that we only send AVDT_SCB_API_WRITE_REQ_EVT to the active stream
771 * device */
772 uint8_t num_st_streams = 0;
773 int ccb_index = -1;
774 int scb_index = -1;
775
776 for (int i = 0; i < AVDT_NUM_LINKS; i++) {
777 for (int j = 0; j < AVDT_NUM_SEPS; j++) {
778 AvdtpScb* p_avdt_scb = &avdtp_cb.ccb[i].scb[j];
779 if (p_avdt_scb->allocated &&
780 avdt_scb_st_tbl[p_avdt_scb->state] == avdt_scb_st_stream) {
781 num_st_streams++;
782 ccb_index = i;
783 scb_index = j;
784 } else {
785 p_avdt_scb->curr_stream = false;
786 }
787 }
788 }
789
790 if (num_st_streams == 1) {
791 avdtp_cb.ccb[ccb_index].scb[scb_index].curr_stream = true;
792 } else if (num_st_streams > 1 && !p_scb->curr_stream &&
793 event == AVDT_SCB_API_WRITE_REQ_EVT) {
794 AVDT_TRACE_ERROR("%s: ignore AVDT_SCB_API_WRITE_REQ_EVT", __func__);
795 avdt_scb_free_pkt(p_scb, p_data);
796 return;
797 }
798
799 /* set current event */
800 p_scb->curr_evt = event;
801
802 /* look up the state table for the current state */
803 state_table = avdt_scb_st_tbl[p_scb->state];
804
805 /* set next state */
806 if (p_scb->state != state_table[event][AVDT_SCB_NEXT_STATE]) {
807 p_scb->state = state_table[event][AVDT_SCB_NEXT_STATE];
808 }
809
810 /* execute action functions */
811 for (int i = 0; i < AVDT_SCB_ACTIONS; i++) {
812 action = state_table[event][i];
813 if (action != AVDT_SCB_IGNORE) {
814 (*avdtp_cb.p_scb_act[action])(p_scb, p_data);
815 } else {
816 break;
817 }
818 }
819 }
820
821 /*******************************************************************************
822 *
823 * Function avdt_scb_init
824 *
825 * Description Initialize stream control block module.
826 *
827 *
828 * Returns Nothing.
829 *
830 ******************************************************************************/
avdt_scb_init(void)831 void avdt_scb_init(void) {
832 for (size_t i = 0; i < AVDT_NUM_LINKS; i++) {
833 for (size_t j = 0; j < AVDT_NUM_SEPS; j++) {
834 avdtp_cb.ccb[i].scb[j].Reset(0);
835 }
836 }
837
838 avdtp_cb.p_scb_act = avdt_scb_action;
839 }
840
841 /*******************************************************************************
842 *
843 * Function avdt_scb_alloc
844 *
845 * Description Allocate a stream control block.
846 *
847 *
848 * Returns pointer to the scb, or NULL if none could be allocated.
849 *
850 ******************************************************************************/
avdt_scb_alloc(uint8_t peer_id,const AvdtpStreamConfig & avdtp_stream_config)851 AvdtpScb* avdt_scb_alloc(uint8_t peer_id,
852 const AvdtpStreamConfig& avdtp_stream_config) {
853 CHECK(peer_id < AVDT_NUM_LINKS);
854
855 // Find available entry
856 AvdtpScb* p_scb = &avdtp_cb.ccb[peer_id].scb[0];
857 for (int i = 0; i < AVDT_NUM_SEPS; i++, p_scb++) {
858 if (!p_scb->allocated) {
859 p_scb->Allocate(&avdtp_cb.ccb[peer_id], avdtp_stream_config);
860 AVDT_TRACE_DEBUG("%s: allocated (handle=%d, psc_mask:0x%x)", __func__,
861 p_scb->ScbHandle(), avdtp_stream_config.cfg.psc_mask);
862 return p_scb;
863 }
864 }
865
866 AVDT_TRACE_WARNING("%s: out of AvdtScb entries for peer_id %d", __func__,
867 peer_id);
868 return nullptr;
869 }
870
Allocate(AvdtpCcb * p_avdtp_ccb,const AvdtpStreamConfig & avdtp_stream_config)871 void AvdtpScb::Allocate(AvdtpCcb* p_avdtp_ccb,
872 const AvdtpStreamConfig& avdtp_stream_config) {
873 uint8_t scb_handle = avdtp_cb.ComputeScbHandle(this);
874 Reset(scb_handle);
875 p_ccb = p_avdtp_ccb;
876 stream_config = avdtp_stream_config;
877 transport_channel_timer = alarm_new("avdtp_scb.transport_channel_timer");
878 allocated = true;
879 }
880
881 /*******************************************************************************
882 *
883 * Function avdt_scb_dealloc
884 *
885 * Description Deallocate a stream control block.
886 *
887 *
888 * Returns void.
889 *
890 ******************************************************************************/
avdt_scb_dealloc(AvdtpScb * p_scb,UNUSED_ATTR tAVDT_SCB_EVT * p_data)891 void avdt_scb_dealloc(AvdtpScb* p_scb, UNUSED_ATTR tAVDT_SCB_EVT* p_data) {
892 AVDT_TRACE_DEBUG("%s: hdl=%d", __func__, avdt_scb_to_hdl(p_scb));
893 p_scb->Recycle();
894 }
895
896 /*******************************************************************************
897 *
898 * Function avdt_scb_to_hdl
899 *
900 * Description Given a pointer to an scb, return its handle (or seid).
901 *
902 *
903 * Returns Index of scb.
904 *
905 ******************************************************************************/
avdt_scb_to_hdl(AvdtpScb * p_scb)906 uint8_t avdt_scb_to_hdl(AvdtpScb* p_scb) { return p_scb->ScbHandle(); }
907
908 /*******************************************************************************
909 *
910 * Function avdt_scb_by_hdl
911 *
912 * Description Given an scb handle (or seid), return a pointer to the scb.
913 *
914 *
915 * Returns Pointer to scb or NULL if index is out of range or scb
916 * is not allocated.
917 *
918 ******************************************************************************/
avdt_scb_by_hdl(uint8_t hdl)919 AvdtpScb* avdt_scb_by_hdl(uint8_t hdl) {
920 // Verify the index
921 if ((hdl < 1) || (hdl > AVDT_NUM_LINKS * AVDT_NUM_SEPS)) {
922 AVDT_TRACE_WARNING("%s: SCB handle %d out of range", __func__, hdl);
923 return nullptr;
924 }
925
926 uint8_t index = hdl - 1;
927 size_t i = index / AVDT_NUM_SEPS;
928 size_t j = index % AVDT_NUM_SEPS;
929
930 AvdtpScb* p_scb = &avdtp_cb.ccb[i].scb[j];
931 // Verify the whether the scb is allocated
932 if (!p_scb->allocated) {
933 AVDT_TRACE_WARNING("%s: SCB handle %d not allocated", __func__, hdl);
934 return nullptr;
935 }
936
937 AVDT_TRACE_DEBUG("%s: SCB for handle %d found: p_scb=%p scb_index=%d",
938 __func__, hdl, p_scb, p_scb->stream_config.scb_index);
939 return p_scb;
940 }
941
942 /*******************************************************************************
943 *
944 * Function avdt_scb_verify
945 *
946 * Description Verify the condition of a list of scbs.
947 *
948 *
949 * Returns SEID that failed, or 0 if success.
950 *
951 ******************************************************************************/
avdt_scb_verify(AvdtpCcb * p_ccb,uint8_t state,uint8_t * p_seid,uint16_t num_seid,uint8_t * p_err_code)952 uint8_t avdt_scb_verify(AvdtpCcb* p_ccb, uint8_t state, uint8_t* p_seid,
953 uint16_t num_seid, uint8_t* p_err_code) {
954 AVDT_TRACE_DEBUG("avdt_scb_verify state %d", state);
955 /* set nonsupported command mask */
956 /* translate public state into private state */
957 uint8_t nsc_mask = 0;
958 if (state == AVDT_VERIFY_SUSPEND) {
959 nsc_mask = AvdtpStreamConfig::AVDT_NSC_SUSPEND;
960 }
961
962 /* verify every scb */
963 *p_err_code = 0;
964 for (int i = 0; (i < num_seid) && (i < AVDT_NUM_SEPS); i++) {
965 AvdtpScb* p_scb = avdt_scb_by_hdl(p_seid[i]);
966 if (p_scb == NULL) {
967 *p_err_code = AVDT_ERR_BAD_STATE;
968 return p_seid[i];
969 }
970
971 if (p_scb->p_ccb != p_ccb) {
972 *p_err_code = AVDT_ERR_BAD_STATE;
973 return p_seid[i];
974 }
975
976 if (p_scb->stream_config.nsc_mask & nsc_mask) {
977 *p_err_code = AVDT_ERR_NSC;
978 return p_seid[i];
979 }
980
981 switch (state) {
982 case AVDT_VERIFY_OPEN:
983 case AVDT_VERIFY_START:
984 if (p_scb->state != AVDT_SCB_OPEN_ST &&
985 p_scb->state != AVDT_SCB_STREAM_ST) {
986 *p_err_code = AVDT_ERR_BAD_STATE;
987 return p_seid[i];
988 }
989 break;
990
991 case AVDT_VERIFY_SUSPEND:
992 case AVDT_VERIFY_STREAMING:
993 if (p_scb->state != AVDT_SCB_STREAM_ST) {
994 *p_err_code = AVDT_ERR_BAD_STATE;
995 return p_seid[i];
996 }
997 break;
998 }
999 }
1000
1001 return 0;
1002 }
1003
1004 /*******************************************************************************
1005 *
1006 * Function avdt_scb_peer_seid_list
1007 *
1008 * Description Given a list of SCB handles, return a list of peer SEIDs
1009 * for the handles, copied in place into the struct passed in.
1010 *
1011 *
1012 * Returns Nothing.
1013 *
1014 ******************************************************************************/
avdt_scb_peer_seid_list(tAVDT_MULTI * p_multi)1015 void avdt_scb_peer_seid_list(tAVDT_MULTI* p_multi) {
1016 int i;
1017 AvdtpScb* p_scb;
1018
1019 for (i = 0; i < p_multi->num_seps; i++) {
1020 p_scb = avdt_scb_by_hdl(p_multi->seid_list[i]);
1021 if (p_scb != NULL) {
1022 p_multi->seid_list[i] = p_scb->peer_seid;
1023 }
1024 }
1025 }
1026