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 #define LOG_TAG "bluetooth-a2dp"
27
28 #include <bluetooth/log.h>
29 #include <string.h>
30
31 #include <cstdint>
32
33 #include "avdt_api.h"
34 #include "avdt_int.h"
35 #include "avdtc_api.h"
36 #include "internal_include/bt_target.h"
37 #include "osi/include/alarm.h"
38
39 using namespace bluetooth;
40
41 /*****************************************************************************
42 * state machine constants and types
43 ****************************************************************************/
44 /* verbose state strings for trace */
45 const char* const avdt_scb_st_str[] = {"SCB_IDLE_ST", "SCB_CONF_ST", "SCB_OPENING_ST",
46 "SCB_OPEN_ST", "SCB_STREAM_ST", "SCB_CLOSING_ST"};
47
48 /* verbose event strings for trace */
49 const char* const avdt_scb_evt_str[] = {
50 "API_REMOVE_EVT", "API_WRITE_REQ_EVT", "API_GETCONFIG_REQ_EVT",
51 "API_DELAY_RPT_REQ", "API_SETCONFIG_REQ_EVT", "API_OPEN_REQ_EVT",
52 "API_CLOSE_REQ_EVT", "API_RECONFIG_REQ_EVT", "API_SECURITY_REQ_EVT",
53 "API_ABORT_REQ_EVT", "API_GETCONFIG_RSP_EVT", "API_SETCONFIG_RSP_EVT",
54 "API_SETCONFIG_REJ_EVT", "API_OPEN_RSP_EVT", "API_CLOSE_RSP_EVT",
55 "API_RECONFIG_RSP_EVT", "API_SECURITY_RSP_EVT", "API_ABORT_RSP_EVT",
56 "MSG_SETCONFIG_CMD_EVT", "MSG_GETCONFIG_CMD_EVT", "MSG_OPEN_CMD_EVT",
57 "MSG_START_CMD_EVT", "MSG_SUSPEND_CMD_EVT", "MSG_CLOSE_CMD_EVT",
58 "MSG_ABORT_CMD_EVT", "MSG_RECONFIG_CMD_EVT", "MSG_SECURITY_CMD_EVT",
59 "MSG_DELAY_RPT_CMD_EVT", "MSG_DELAY_RPT_RSP_EVT", "MSG_SETCONFIG_RSP_EVT",
60 "MSG_GETCONFIG_RSP_EVT", "MSG_OPEN_RSP_EVT", "MSG_START_RSP_EVT",
61 "MSG_SUSPEND_RSP_EVT", "MSG_CLOSE_RSP_EVT", "MSG_ABORT_RSP_EVT",
62 "MSG_RECONFIG_RSP_EVT", "MSG_SECURITY_RSP_EVT", "MSG_SETCONFIG_REJ_EVT",
63 "MSG_OPEN_REJ_EVT", "MSG_START_REJ_EVT", "MSG_SUSPEND_REJ_EVT",
64 "TC_TOUT_EVT", "TC_OPEN_EVT", "TC_CLOSE_EVT",
65 "TC_CONG_EVT", "TC_DATA_EVT", "CC_CLOSE_EVT"};
66
67 /* action function list */
68 const tAVDT_SCB_ACTION avdt_scb_action[] = {avdt_scb_hdl_abort_cmd,
69 avdt_scb_hdl_abort_rsp,
70 avdt_scb_hdl_close_cmd,
71 avdt_scb_hdl_close_rsp,
72 avdt_scb_hdl_getconfig_cmd,
73 avdt_scb_hdl_getconfig_rsp,
74 avdt_scb_hdl_open_cmd,
75 avdt_scb_hdl_open_rej,
76 avdt_scb_hdl_open_rsp,
77 avdt_scb_hdl_pkt,
78 avdt_scb_drop_pkt,
79 avdt_scb_hdl_reconfig_cmd,
80 avdt_scb_hdl_reconfig_rsp,
81 avdt_scb_hdl_security_cmd,
82 avdt_scb_hdl_security_rsp,
83 avdt_scb_hdl_setconfig_cmd,
84 avdt_scb_hdl_setconfig_rej,
85 avdt_scb_hdl_setconfig_rsp,
86 avdt_scb_hdl_start_cmd,
87 avdt_scb_hdl_start_rsp,
88 avdt_scb_hdl_suspend_cmd,
89 avdt_scb_hdl_suspend_rsp,
90 avdt_scb_hdl_tc_close,
91 avdt_scb_hdl_tc_close_sto,
92 avdt_scb_hdl_tc_open,
93 avdt_scb_hdl_tc_open_sto,
94 avdt_scb_snd_delay_rpt_req,
95 avdt_scb_hdl_delay_rpt_cmd,
96 avdt_scb_hdl_delay_rpt_rsp,
97 avdt_scb_hdl_write_req,
98 avdt_scb_snd_abort_req,
99 avdt_scb_snd_abort_rsp,
100 avdt_scb_snd_close_req,
101 avdt_scb_snd_stream_close,
102 avdt_scb_snd_close_rsp,
103 avdt_scb_snd_getconfig_req,
104 avdt_scb_snd_getconfig_rsp,
105 avdt_scb_snd_open_req,
106 avdt_scb_snd_open_rsp,
107 avdt_scb_snd_reconfig_req,
108 avdt_scb_snd_reconfig_rsp,
109 avdt_scb_snd_security_req,
110 avdt_scb_snd_security_rsp,
111 avdt_scb_snd_setconfig_req,
112 avdt_scb_snd_setconfig_rej,
113 avdt_scb_snd_setconfig_rsp,
114 avdt_scb_snd_snk_delay_rpt_req,
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 /* AVDT_SCB_API_REMOVE_EVT */
139 {AVDT_SCB_DEALLOC, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
140 /* AVDT_SCB_API_WRITE_REQ_EVT */
141 {AVDT_SCB_FREE_PKT, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
142 /* AVDT_SCB_API_GETCONFIG_REQ_EVT */
143 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
144 /* AVDT_SCB_API_DELAY_RPT_REQ_EVT */
145 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
146 /* AVDT_SCB_API_SETCONFIG_REQ_EVT */
147 {AVDT_SCB_SND_SETCONFIG_REQ, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
148 /* AVDT_SCB_API_OPEN_REQ_EVT */
149 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
150 /* AVDT_SCB_API_CLOSE_REQ_EVT */
151 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
152 /* AVDT_SCB_API_RECONFIG_REQ_EVT */
153 {AVDT_SCB_CB_ERR, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
154 /* AVDT_SCB_API_SECURITY_REQ_EVT */
155 {AVDT_SCB_CB_ERR, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
156 /* AVDT_SCB_API_ABORT_REQ_EVT */
157 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
158 /* AVDT_SCB_API_GETCONFIG_RSP_EVT */
159 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
160 /* AVDT_SCB_API_SETCONFIG_RSP_EVT */
161 {AVDT_SCB_SND_SETCONFIG_RSP, AVDT_SCB_SND_SNK_DELAY_RPT_REQ, AVDT_SCB_CONF_ST},
162 /* AVDT_SCB_API_SETCONFIG_REJ_EVT */
163 {AVDT_SCB_SND_SETCONFIG_REJ, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
164 /* AVDT_SCB_API_OPEN_RSP_EVT */
165 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
166 /* AVDT_SCB_API_CLOSE_RSP_EVT */
167 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
168 /* AVDT_SCB_API_RECONFIG_RSP_EVT */
169 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
170 /* AVDT_SCB_API_SECURITY_RSP_EVT */
171 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
172 /* AVDT_SCB_API_ABORT_RSP_EVT */
173 {AVDT_SCB_SND_ABORT_RSP, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
174 /* AVDT_SCB_MSG_SETCONFIG_CMD_EVT */
175 {AVDT_SCB_HDL_SETCONFIG_CMD, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
176 /* AVDT_SCB_MSG_GETCONFIG_CMD_EVT */
177 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
178 /* AVDT_SCB_MSG_OPEN_CMD_EVT */
179 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
180 /* AVDT_SCB_MSG_START_CMD_EVT */
181 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
182 /* AVDT_SCB_MSG_SUSPEND_CMD_EVT */
183 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
184 /* AVDT_SCB_MSG_CLOSE_CMD_EVT */
185 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
186 /* AVDT_SCB_MSG_ABORT_CMD_EVT */
187 {AVDT_SCB_HDL_ABORT_CMD, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
188 /* AVDT_SCB_MSG_RECONFIG_CMD_EVT */
189 {AVDT_SCB_REJ_NOT_IN_USE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
190 /* AVDT_SCB_MSG_SECURITY_CMD_EVT */
191 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
192 /* AVDT_SCB_MSG_DELAY_RPT_CMD_EVT */
193 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
194 /* AVDT_SCB_MSG_DELAY_RPT_RSP_EVT */
195 {AVDT_SCB_HDL_DELAY_RPT_RSP, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
196 /* AVDT_SCB_MSG_SETCONFIG_RSP_EVT */
197 {AVDT_SCB_HDL_SETCONFIG_RSP, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
198 /* AVDT_SCB_MSG_GETCONFIG_RSP_EVT */
199 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
200 /* AVDT_SCB_MSG_OPEN_RSP_EVT */
201 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
202 /* AVDT_SCB_MSG_START_RSP_EVT */
203 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
204 /* AVDT_SCB_MSG_SUSPEND_RSP_EVT */
205 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
206 /* AVDT_SCB_MSG_CLOSE_RSP_EVT */
207 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
208 /* AVDT_SCB_MSG_ABORT_RSP_EVT */
209 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
210 /* AVDT_SCB_MSG_RECONFIG_RSP_EVT */
211 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
212 /* AVDT_SCB_MSG_SECURITY_RSP_EVT */
213 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
214 /* AVDT_SCB_MSG_SETCONFIG_REJ_EVT */
215 {AVDT_SCB_HDL_SETCONFIG_REJ, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
216 /* AVDT_SCB_MSG_OPEN_REJ_EVT */
217 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
218 /* AVDT_SCB_MSG_START_REJ_EVT */
219 {AVDT_SCB_HDL_START_RSP, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
220 /* AVDT_SCB_MSG_SUSPEND_REJ_EVT */
221 {AVDT_SCB_HDL_SUSPEND_RSP, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
222 /* AVDT_SCB_TC_TOUT_EVT */
223 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
224 /* AVDT_SCB_TC_OPEN_EVT */
225 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
226 /* AVDT_SCB_TC_CLOSE_EVT */
227 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
228 /* AVDT_SCB_TC_CONG_EVT */
229 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
230 /* AVDT_SCB_TC_DATA_EVT */
231 {AVDT_SCB_DROP_PKT, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
232 /* AVDT_SCB_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 /* AVDT_SCB_API_REMOVE_EVT */
240 {AVDT_SCB_SND_ABORT_REQ, AVDT_SCB_SET_REMOVE, AVDT_SCB_CONF_ST},
241 /* AVDT_SCB_API_WRITE_REQ_EVT */
242 {AVDT_SCB_FREE_PKT, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
243 /* AVDT_SCB_API_GETCONFIG_REQ_EVT */
244 {AVDT_SCB_SND_GETCONFIG_REQ, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
245 /* AVDT_SCB_API_DELAY_RPT_REQ_EVT */
246 {AVDT_SCB_SND_DELAY_RPT_REQ, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
247 /* AVDT_SCB_API_SETCONFIG_REQ_EVT */
248 {AVDT_SCB_CB_ERR, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
249 /* AVDT_SCB_API_OPEN_REQ_EVT */
250 {AVDT_SCB_SND_OPEN_REQ, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
251 /* AVDT_SCB_API_CLOSE_REQ_EVT */
252 {AVDT_SCB_SND_ABORT_REQ, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
253 /* AVDT_SCB_API_RECONFIG_REQ_EVT */
254 {AVDT_SCB_CB_ERR, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
255 /* AVDT_SCB_API_SECURITY_REQ_EVT */
256 {AVDT_SCB_SND_SECURITY_REQ, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
257 /* AVDT_SCB_API_ABORT_REQ_EVT */
258 {AVDT_SCB_SND_ABORT_REQ, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
259 /* AVDT_SCB_API_GETCONFIG_RSP_EVT */
260 {AVDT_SCB_SND_GETCONFIG_RSP, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
261 /* AVDT_SCB_API_SETCONFIG_RSP_EVT */
262 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
263 /* AVDT_SCB_API_SETCONFIG_REJ_EVT */
264 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
265 /* AVDT_SCB_API_OPEN_RSP_EVT */
266 {AVDT_SCB_SND_OPEN_RSP, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
267 /* AVDT_SCB_API_CLOSE_RSP_EVT */
268 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
269 /* AVDT_SCB_API_RECONFIG_RSP_EVT */
270 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
271 /* AVDT_SCB_API_SECURITY_RSP_EVT */
272 {AVDT_SCB_SND_SECURITY_RSP, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
273 /* AVDT_SCB_API_ABORT_RSP_EVT */
274 {AVDT_SCB_SND_ABORT_RSP, AVDT_SCB_HDL_TC_CLOSE, AVDT_SCB_IDLE_ST},
275 /* AVDT_SCB_MSG_SETCONFIG_CMD_EVT */
276 {AVDT_SCB_REJ_IN_USE, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
277 /* AVDT_SCB_MSG_GETCONFIG_CMD_EVT */
278 {AVDT_SCB_HDL_GETCONFIG_CMD, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
279 /* AVDT_SCB_MSG_OPEN_CMD_EVT */
280 {AVDT_SCB_HDL_OPEN_CMD, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
281 /* AVDT_SCB_MSG_START_CMD_EVT */
282 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
283 /* AVDT_SCB_MSG_SUSPEND_CMD_EVT */
284 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
285 /* AVDT_SCB_MSG_CLOSE_CMD_EVT */
286 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
287 /* AVDT_SCB_MSG_ABORT_CMD_EVT */
288 {AVDT_SCB_HDL_ABORT_CMD, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
289 /* AVDT_SCB_MSG_RECONFIG_CMD_EVT */
290 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
291 /* AVDT_SCB_MSG_SECURITY_CMD_EVT */
292 {AVDT_SCB_HDL_SECURITY_CMD, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
293 /* AVDT_SCB_MSG_DELAY_RPT_CMD_EVT */
294 {AVDT_SCB_HDL_DELAY_RPT_CMD, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
295 /* AVDT_SCB_MSG_DELAY_RPT_RSP_EVT */
296 {AVDT_SCB_HDL_DELAY_RPT_RSP, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
297 /* AVDT_SCB_MSG_SETCONFIG_RSP_EVT */
298 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
299 /* AVDT_SCB_MSG_GETCONFIG_RSP_EVT */
300 {AVDT_SCB_HDL_GETCONFIG_RSP, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
301 /* AVDT_SCB_MSG_OPEN_RSP_EVT */
302 {AVDT_SCB_HDL_OPEN_RSP, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
303 /* AVDT_SCB_MSG_START_RSP_EVT */
304 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
305 /* AVDT_SCB_MSG_SUSPEND_RSP_EVT */
306 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
307 /* AVDT_SCB_MSG_CLOSE_RSP_EVT */
308 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
309 /* AVDT_SCB_MSG_ABORT_RSP_EVT */
310 {AVDT_SCB_HDL_ABORT_RSP, AVDT_SCB_HDL_TC_CLOSE, AVDT_SCB_IDLE_ST},
311 /* AVDT_SCB_MSG_RECONFIG_RSP_EVT */
312 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
313 /* AVDT_SCB_MSG_SECURITY_RSP_EVT */
314 {AVDT_SCB_HDL_SECURITY_RSP, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
315 /* AVDT_SCB_MSG_SETCONFIG_REJ_EVT */
316 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
317 /* AVDT_SCB_MSG_OPEN_REJ_EVT */
318 {AVDT_SCB_HDL_OPEN_REJ, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
319 /* AVDT_SCB_MSG_START_REJ_EVT */
320 {AVDT_SCB_HDL_START_RSP, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
321 /* AVDT_SCB_MSG_SUSPEND_REJ_EVT */
322 {AVDT_SCB_HDL_SUSPEND_RSP, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
323 /* AVDT_SCB_TC_TOUT_EVT */
324 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
325 /* AVDT_SCB_TC_OPEN_EVT */
326 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
327 /* AVDT_SCB_TC_CLOSE_EVT */
328 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
329 /* AVDT_SCB_TC_CONG_EVT */
330 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
331 /* AVDT_SCB_TC_DATA_EVT */
332 {AVDT_SCB_DROP_PKT, AVDT_SCB_IGNORE, AVDT_SCB_CONF_ST},
333 /* AVDT_SCB_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 /* AVDT_SCB_API_REMOVE_EVT */
341 {AVDT_SCB_SND_CLOSE_REQ, AVDT_SCB_SET_REMOVE, AVDT_SCB_CLOSING_ST},
342 /* AVDT_SCB_API_WRITE_REQ_EVT */
343 {AVDT_SCB_FREE_PKT, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
344 /* AVDT_SCB_API_GETCONFIG_REQ_EVT */
345 {AVDT_SCB_SND_GETCONFIG_REQ, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
346 /* AVDT_SCB_API_DELAY_RPT_REQ_EVT */
347 {AVDT_SCB_SND_DELAY_RPT_REQ, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
348 /* AVDT_SCB_API_SETCONFIG_REQ_EVT */
349 {AVDT_SCB_CB_ERR, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
350 /* AVDT_SCB_API_OPEN_REQ_EVT */
351 {AVDT_SCB_CB_ERR, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
352 /* AVDT_SCB_API_CLOSE_REQ_EVT */
353 {AVDT_SCB_SND_CLOSE_REQ, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
354 /* AVDT_SCB_API_RECONFIG_REQ_EVT */
355 {AVDT_SCB_CB_ERR, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
356 /* AVDT_SCB_API_SECURITY_REQ_EVT */
357 {AVDT_SCB_SND_SECURITY_REQ, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
358 /* AVDT_SCB_API_ABORT_REQ_EVT */
359 {AVDT_SCB_SND_ABORT_REQ, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
360 /* AVDT_SCB_API_GETCONFIG_RSP_EVT */
361 {AVDT_SCB_SND_GETCONFIG_RSP, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
362 /* AVDT_SCB_API_SETCONFIG_RSP_EVT */
363 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
364 /* AVDT_SCB_API_SETCONFIG_REJ_EVT */
365 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
366 /* AVDT_SCB_API_OPEN_RSP_EVT */
367 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
368 /* AVDT_SCB_API_CLOSE_RSP_EVT */
369 {AVDT_SCB_SND_CLOSE_RSP, AVDT_SCB_SND_TC_CLOSE, AVDT_SCB_CLOSING_ST},
370 /* AVDT_SCB_API_RECONFIG_RSP_EVT */
371 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
372 /* AVDT_SCB_API_SECURITY_RSP_EVT */
373 {AVDT_SCB_SND_SECURITY_RSP, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
374 /* AVDT_SCB_API_ABORT_RSP_EVT */
375 {AVDT_SCB_SND_ABORT_RSP, AVDT_SCB_SND_TC_CLOSE, AVDT_SCB_CLOSING_ST},
376 /* AVDT_SCB_MSG_SETCONFIG_CMD_EVT */
377 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
378 /* AVDT_SCB_MSG_GETCONFIG_CMD_EVT */
379 {AVDT_SCB_HDL_GETCONFIG_CMD, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
380 /* AVDT_SCB_MSG_OPEN_CMD_EVT */
381 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
382 /* AVDT_SCB_MSG_START_CMD_EVT */
383 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
384 /* AVDT_SCB_MSG_SUSPEND_CMD_EVT */
385 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
386 /* AVDT_SCB_MSG_CLOSE_CMD_EVT */
387 {AVDT_SCB_HDL_CLOSE_CMD, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
388 /* AVDT_SCB_MSG_ABORT_CMD_EVT */
389 {AVDT_SCB_HDL_ABORT_CMD, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
390 /* AVDT_SCB_MSG_RECONFIG_CMD_EVT */
391 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
392 /* AVDT_SCB_MSG_SECURITY_CMD_EVT */
393 {AVDT_SCB_HDL_SECURITY_CMD, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
394 /* AVDT_SCB_MSG_DELAY_RPT_CMD_EVT */
395 {AVDT_SCB_HDL_DELAY_RPT_CMD, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
396 /* AVDT_SCB_MSG_DELAY_RPT_RSP_EVT */
397 {AVDT_SCB_HDL_DELAY_RPT_RSP, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
398 /* AVDT_SCB_MSG_SETCONFIG_RSP_EVT */
399 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
400 /* AVDT_SCB_MSG_GETCONFIG_RSP_EVT */
401 {AVDT_SCB_HDL_GETCONFIG_RSP, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
402 /* AVDT_SCB_MSG_OPEN_RSP_EVT */
403 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
404 /* AVDT_SCB_MSG_START_RSP_EVT */
405 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
406 /* AVDT_SCB_MSG_SUSPEND_RSP_EVT */
407 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
408 /* AVDT_SCB_MSG_CLOSE_RSP_EVT */
409 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
410 /* AVDT_SCB_MSG_ABORT_RSP_EVT */
411 {AVDT_SCB_SND_TC_CLOSE, AVDT_SCB_HDL_ABORT_RSP, AVDT_SCB_CLOSING_ST},
412 /* AVDT_SCB_MSG_RECONFIG_RSP_EVT */
413 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
414 /* AVDT_SCB_MSG_SECURITY_RSP_EVT */
415 {AVDT_SCB_HDL_SECURITY_RSP, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
416 /* AVDT_SCB_MSG_SETCONFIG_REJ_EVT */
417 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
418 /* AVDT_SCB_MSG_OPEN_REJ_EVT */
419 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
420 /* AVDT_SCB_MSG_START_REJ_EVT */
421 {AVDT_SCB_HDL_START_RSP, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
422 /* AVDT_SCB_MSG_SUSPEND_REJ_EVT */
423 {AVDT_SCB_HDL_SUSPEND_RSP, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
424 /* AVDT_SCB_TC_TOUT_EVT */
425 {AVDT_SCB_SND_ABORT_REQ, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
426 /* AVDT_SCB_TC_OPEN_EVT */
427 {AVDT_SCB_HDL_TC_OPEN, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
428 /* AVDT_SCB_TC_CLOSE_EVT */
429 {AVDT_SCB_HDL_TC_CLOSE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
430 /* AVDT_SCB_TC_CONG_EVT */
431 {AVDT_SCB_CONG_STATE, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
432 /* AVDT_SCB_TC_DATA_EVT */
433 {AVDT_SCB_DROP_PKT, AVDT_SCB_IGNORE, AVDT_SCB_OPENING_ST},
434 /* AVDT_SCB_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 /* AVDT_SCB_API_REMOVE_EVT */
442 {AVDT_SCB_SND_CLOSE_REQ, AVDT_SCB_SET_REMOVE, AVDT_SCB_CLOSING_ST},
443 /* AVDT_SCB_API_WRITE_REQ_EVT */
444 {AVDT_SCB_FREE_PKT, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
445 /* AVDT_SCB_API_GETCONFIG_REQ_EVT */
446 {AVDT_SCB_SND_GETCONFIG_REQ, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
447 /* AVDT_SCB_API_DELAY_RPT_REQ_EVT */
448 {AVDT_SCB_SND_DELAY_RPT_REQ, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
449 /* AVDT_SCB_API_SETCONFIG_REQ_EVT */
450 {AVDT_SCB_CB_ERR, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
451 /* AVDT_SCB_API_OPEN_REQ_EVT */
452 {AVDT_SCB_CB_ERR, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
453 /* AVDT_SCB_API_CLOSE_REQ_EVT */
454 {AVDT_SCB_SND_CLOSE_REQ, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
455 /* AVDT_SCB_API_RECONFIG_REQ_EVT */
456 {AVDT_SCB_SND_RECONFIG_REQ, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
457 /* AVDT_SCB_API_SECURITY_REQ_EVT */
458 {AVDT_SCB_SND_SECURITY_REQ, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
459 /* AVDT_SCB_API_ABORT_REQ_EVT */
460 {AVDT_SCB_SND_ABORT_REQ, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
461 /* AVDT_SCB_API_GETCONFIG_RSP_EVT */
462 {AVDT_SCB_SND_GETCONFIG_RSP, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
463 /* AVDT_SCB_API_SETCONFIG_RSP_EVT */
464 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
465 /* AVDT_SCB_API_SETCONFIG_REJ_EVT */
466 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
467 /* AVDT_SCB_API_OPEN_RSP_EVT */
468 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
469 /* AVDT_SCB_API_CLOSE_RSP_EVT */
470 {AVDT_SCB_SND_CLOSE_RSP, AVDT_SCB_TC_TIMER, AVDT_SCB_CLOSING_ST},
471 /* AVDT_SCB_API_RECONFIG_RSP_EVT */
472 {AVDT_SCB_SND_RECONFIG_RSP, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
473 /* AVDT_SCB_API_SECURITY_RSP_EVT */
474 {AVDT_SCB_SND_SECURITY_RSP, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
475 /* AVDT_SCB_API_ABORT_RSP_EVT */
476 {AVDT_SCB_SND_ABORT_RSP, AVDT_SCB_TC_TIMER, AVDT_SCB_CLOSING_ST},
477 /* AVDT_SCB_MSG_SETCONFIG_CMD_EVT */
478 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
479 /* AVDT_SCB_MSG_GETCONFIG_CMD_EVT */
480 {AVDT_SCB_HDL_GETCONFIG_CMD, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
481 /* AVDT_SCB_MSG_OPEN_CMD_EVT */
482 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
483 /* AVDT_SCB_MSG_START_CMD_EVT */
484 {AVDT_SCB_HDL_START_CMD, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
485 /* AVDT_SCB_MSG_SUSPEND_CMD_EVT */
486 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
487 /* AVDT_SCB_MSG_CLOSE_CMD_EVT */
488 {AVDT_SCB_HDL_CLOSE_CMD, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
489 /* AVDT_SCB_MSG_ABORT_CMD_EVT */
490 {AVDT_SCB_HDL_ABORT_CMD, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
491 /* AVDT_SCB_MSG_RECONFIG_CMD_EVT */
492 {AVDT_SCB_HDL_RECONFIG_CMD, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
493 /* AVDT_SCB_MSG_SECURITY_CMD_EVT */
494 {AVDT_SCB_HDL_SECURITY_CMD, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
495 /* AVDT_SCB_MSG_DELAY_RPT_CMD_EVT */
496 {AVDT_SCB_HDL_DELAY_RPT_CMD, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
497 /* AVDT_SCB_MSG_DELAY_RPT_RSP_EVT */
498 {AVDT_SCB_HDL_DELAY_RPT_RSP, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
499 /* AVDT_SCB_MSG_SETCONFIG_RSP_EVT */
500 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
501 /* AVDT_SCB_MSG_GETCONFIG_RSP_EVT */
502 {AVDT_SCB_HDL_GETCONFIG_RSP, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
503 /* AVDT_SCB_MSG_OPEN_RSP_EVT */
504 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
505 /* AVDT_SCB_MSG_START_RSP_EVT */
506 {AVDT_SCB_HDL_START_RSP, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
507 /* AVDT_SCB_MSG_SUSPEND_RSP_EVT */
508 {AVDT_SCB_HDL_SUSPEND_RSP, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
509 /* AVDT_SCB_MSG_CLOSE_RSP_EVT */
510 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
511 /* AVDT_SCB_MSG_ABORT_RSP_EVT */
512 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
513 /* AVDT_SCB_MSG_RECONFIG_RSP_EVT */
514 {AVDT_SCB_HDL_RECONFIG_RSP, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
515 /* AVDT_SCB_MSG_SECURITY_RSP_EVT */
516 {AVDT_SCB_HDL_SECURITY_RSP, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
517 /* AVDT_SCB_MSG_SETCONFIG_REJ_EVT */
518 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
519 /* AVDT_SCB_MSG_OPEN_REJ_EVT */
520 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
521 /* AVDT_SCB_MSG_START_REJ_EVT */
522 {AVDT_SCB_HDL_START_RSP, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
523 /* AVDT_SCB_MSG_SUSPEND_REJ_EVT */
524 {AVDT_SCB_HDL_SUSPEND_RSP, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
525 /* AVDT_SCB_TC_TOUT_EVT */
526 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
527 /* AVDT_SCB_TC_OPEN_EVT */
528 {AVDT_SCB_HDL_TC_OPEN_STO, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
529 /* AVDT_SCB_TC_CLOSE_EVT */
530 {AVDT_SCB_HDL_TC_CLOSE_STO, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
531 /* AVDT_SCB_TC_CONG_EVT */
532 {AVDT_SCB_CONG_STATE, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
533 /* AVDT_SCB_TC_DATA_EVT */
534 {AVDT_SCB_DROP_PKT, AVDT_SCB_IGNORE, AVDT_SCB_OPEN_ST},
535 /* AVDT_SCB_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 /* AVDT_SCB_API_REMOVE_EVT */
543 {AVDT_SCB_SND_STREAM_CLOSE, AVDT_SCB_SET_REMOVE, AVDT_SCB_CLOSING_ST},
544 /* AVDT_SCB_API_WRITE_REQ_EVT */
545 {AVDT_SCB_HDL_WRITE_REQ, AVDT_SCB_CHK_SND_PKT, AVDT_SCB_STREAM_ST},
546 /* AVDT_SCB_API_GETCONFIG_REQ_EVT */
547 {AVDT_SCB_SND_GETCONFIG_REQ, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
548 /* AVDT_SCB_API_DELAY_RPT_REQ_EVT */
549 {AVDT_SCB_SND_DELAY_RPT_REQ, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
550 /* AVDT_SCB_API_SETCONFIG_REQ_EVT */
551 {AVDT_SCB_CB_ERR, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
552 /* AVDT_SCB_API_OPEN_REQ_EVT */
553 {AVDT_SCB_CB_ERR, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
554 /* AVDT_SCB_API_CLOSE_REQ_EVT */
555 {AVDT_SCB_SND_STREAM_CLOSE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
556 /* AVDT_SCB_API_RECONFIG_REQ_EVT */
557 {AVDT_SCB_CB_ERR, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
558 /* AVDT_SCB_API_SECURITY_REQ_EVT */
559 {AVDT_SCB_SND_SECURITY_REQ, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
560 /* AVDT_SCB_API_ABORT_REQ_EVT */
561 {AVDT_SCB_SND_ABORT_REQ, AVDT_SCB_CLR_PKT, AVDT_SCB_CLOSING_ST},
562 /* AVDT_SCB_API_GETCONFIG_RSP_EVT */
563 {AVDT_SCB_SND_GETCONFIG_RSP, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
564 /* AVDT_SCB_API_SETCONFIG_RSP_EVT */
565 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
566 /* AVDT_SCB_API_SETCONFIG_REJ_EVT */
567 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
568 /* AVDT_SCB_API_OPEN_RSP_EVT */
569 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
570 /* AVDT_SCB_API_CLOSE_RSP_EVT */
571 {AVDT_SCB_SND_CLOSE_RSP, AVDT_SCB_TC_TIMER, AVDT_SCB_CLOSING_ST},
572 /* AVDT_SCB_API_RECONFIG_RSP_EVT */
573 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
574 /* AVDT_SCB_API_SECURITY_RSP_EVT */
575 {AVDT_SCB_SND_SECURITY_RSP, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
576 /* AVDT_SCB_API_ABORT_RSP_EVT */
577 {AVDT_SCB_SND_ABORT_RSP, AVDT_SCB_TC_TIMER, AVDT_SCB_CLOSING_ST},
578 /* AVDT_SCB_MSG_SETCONFIG_CMD_EVT */
579 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
580 /* AVDT_SCB_MSG_GETCONFIG_CMD_EVT */
581 {AVDT_SCB_HDL_GETCONFIG_CMD, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
582 /* AVDT_SCB_MSG_OPEN_CMD_EVT */
583 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
584 /* AVDT_SCB_MSG_START_CMD_EVT */
585 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
586 /* AVDT_SCB_MSG_SUSPEND_CMD_EVT */
587 {AVDT_SCB_HDL_SUSPEND_CMD, AVDT_SCB_CLR_PKT, AVDT_SCB_OPEN_ST},
588 /* AVDT_SCB_MSG_CLOSE_CMD_EVT */
589 {AVDT_SCB_HDL_CLOSE_CMD, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
590 /* AVDT_SCB_MSG_ABORT_CMD_EVT */
591 {AVDT_SCB_HDL_ABORT_CMD, AVDT_SCB_CLR_PKT, AVDT_SCB_STREAM_ST},
592 /* AVDT_SCB_MSG_RECONFIG_CMD_EVT */
593 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
594 /* AVDT_SCB_MSG_SECURITY_CMD_EVT */
595 {AVDT_SCB_HDL_SECURITY_CMD, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
596 /* AVDT_SCB_MSG_DELAY_RPT_CMD_EVT */
597 {AVDT_SCB_HDL_DELAY_RPT_CMD, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
598 /* AVDT_SCB_MSG_DELAY_RPT_RSP_EVT */
599 {AVDT_SCB_HDL_DELAY_RPT_RSP, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
600 /* AVDT_SCB_MSG_SETCONFIG_RSP_EVT */
601 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
602 /* AVDT_SCB_MSG_GETCONFIG_RSP_EVT */
603 {AVDT_SCB_HDL_GETCONFIG_RSP, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
604 /* AVDT_SCB_MSG_OPEN_RSP_EVT */
605 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
606 /* AVDT_SCB_MSG_START_RSP_EVT */
607 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
608 /* AVDT_SCB_MSG_SUSPEND_RSP_EVT */
609 {AVDT_SCB_HDL_SUSPEND_RSP, AVDT_SCB_CLR_PKT, AVDT_SCB_OPEN_ST},
610 /* AVDT_SCB_MSG_CLOSE_RSP_EVT */
611 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
612 /* AVDT_SCB_MSG_ABORT_RSP_EVT */
613 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
614 /* AVDT_SCB_MSG_RECONFIG_RSP_EVT */
615 {AVDT_SCB_HDL_RECONFIG_RSP, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
616 /* AVDT_SCB_MSG_SECURITY_RSP_EVT */
617 {AVDT_SCB_HDL_SECURITY_RSP, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
618 /* AVDT_SCB_MSG_SETCONFIG_REJ_EVT */
619 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
620 /* AVDT_SCB_MSG_OPEN_REJ_EVT */
621 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
622 /* AVDT_SCB_MSG_START_REJ_EVT */
623 {AVDT_SCB_HDL_START_RSP, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
624 /* AVDT_SCB_MSG_SUSPEND_REJ_EVT */
625 {AVDT_SCB_HDL_SUSPEND_RSP, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
626 /* AVDT_SCB_TC_TOUT_EVT */
627 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
628 /* AVDT_SCB_TC_OPEN_EVT */
629 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
630 /* AVDT_SCB_TC_CLOSE_EVT */
631 {AVDT_SCB_HDL_TC_CLOSE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
632 /* AVDT_SCB_TC_CONG_EVT */
633 {AVDT_SCB_CONG_STATE, AVDT_SCB_CHK_SND_PKT, AVDT_SCB_STREAM_ST},
634 /* AVDT_SCB_TC_DATA_EVT */
635 {AVDT_SCB_HDL_PKT, AVDT_SCB_IGNORE, AVDT_SCB_STREAM_ST},
636 /* AVDT_SCB_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 /* AVDT_SCB_API_REMOVE_EVT */
644 {AVDT_SCB_SET_REMOVE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
645 /* AVDT_SCB_API_WRITE_REQ_EVT */
646 {AVDT_SCB_FREE_PKT, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
647 /* AVDT_SCB_API_GETCONFIG_REQ_EVT */
648 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
649 /* AVDT_SCB_API_DELAY_RPT_REQ_EVT */
650 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
651 /* AVDT_SCB_API_SETCONFIG_REQ_EVT */
652 {AVDT_SCB_CB_ERR, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
653 /* AVDT_SCB_API_OPEN_REQ_EVT */
654 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
655 /* AVDT_SCB_API_CLOSE_REQ_EVT */
656 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
657 /* AVDT_SCB_API_RECONFIG_REQ_EVT */
658 {AVDT_SCB_CB_ERR, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
659 /* AVDT_SCB_API_SECURITY_REQ_EVT */
660 {AVDT_SCB_CB_ERR, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
661 /* AVDT_SCB_API_ABORT_REQ_EVT */
662 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
663 /* AVDT_SCB_API_GETCONFIG_RSP_EVT */
664 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
665 /* AVDT_SCB_API_SETCONFIG_RSP_EVT */
666 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
667 /* AVDT_SCB_API_SETCONFIG_REJ_EVT */
668 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
669 /* AVDT_SCB_API_OPEN_RSP_EVT */
670 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
671 /* AVDT_SCB_API_CLOSE_RSP_EVT */
672 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
673 /* AVDT_SCB_API_RECONFIG_RSP_EVT */
674 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
675 /* AVDT_SCB_API_SECURITY_RSP_EVT */
676 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
677 /* AVDT_SCB_API_ABORT_RSP_EVT */
678 {AVDT_SCB_SND_ABORT_RSP, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
679 /* AVDT_SCB_MSG_SETCONFIG_CMD_EVT */
680 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
681 /* AVDT_SCB_MSG_GETCONFIG_CMD_EVT */
682 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
683 /* AVDT_SCB_MSG_OPEN_CMD_EVT */
684 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
685 /* AVDT_SCB_MSG_START_CMD_EVT */
686 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
687 /* AVDT_SCB_MSG_SUSPEND_CMD_EVT */
688 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
689 /* AVDT_SCB_MSG_CLOSE_CMD_EVT */
690 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
691 /* AVDT_SCB_MSG_ABORT_CMD_EVT */
692 {AVDT_SCB_HDL_ABORT_CMD, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
693 /* AVDT_SCB_MSG_RECONFIG_CMD_EVT */
694 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
695 /* AVDT_SCB_MSG_SECURITY_CMD_EVT */
696 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
697 /* AVDT_SCB_MSG_DELAY_RPT_CMD_EVT */
698 {AVDT_SCB_REJ_STATE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
699 /* AVDT_SCB_MSG_DELAY_RPT_RSP_EVT */
700 {AVDT_SCB_HDL_DELAY_RPT_RSP, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
701 /* AVDT_SCB_MSG_SETCONFIG_RSP_EVT */
702 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
703 /* AVDT_SCB_MSG_GETCONFIG_RSP_EVT */
704 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
705 /* AVDT_SCB_MSG_OPEN_RSP_EVT */
706 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
707 /* AVDT_SCB_MSG_START_RSP_EVT */
708 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
709 /* AVDT_SCB_MSG_SUSPEND_RSP_EVT */
710 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
711 /* AVDT_SCB_MSG_CLOSE_RSP_EVT */
712 {AVDT_SCB_SND_TC_CLOSE, AVDT_SCB_HDL_CLOSE_RSP, AVDT_SCB_CLOSING_ST},
713 /* AVDT_SCB_MSG_ABORT_RSP_EVT */
714 {AVDT_SCB_SND_TC_CLOSE, AVDT_SCB_HDL_ABORT_RSP, AVDT_SCB_CLOSING_ST},
715 /* AVDT_SCB_MSG_RECONFIG_RSP_EVT */
716 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
717 /* AVDT_SCB_MSG_SECURITY_RSP_EVT */
718 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
719 /* AVDT_SCB_MSG_SETCONFIG_REJ_EVT */
720 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
721 /* AVDT_SCB_MSG_OPEN_REJ_EVT */
722 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
723 /* AVDT_SCB_MSG_START_REJ_EVT */
724 {AVDT_SCB_HDL_START_RSP, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
725 /* AVDT_SCB_MSG_SUSPEND_REJ_EVT */
726 {AVDT_SCB_HDL_SUSPEND_RSP, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
727 /* AVDT_SCB_TC_TOUT_EVT */
728 {AVDT_SCB_SND_TC_CLOSE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
729 /* AVDT_SCB_TC_OPEN_EVT */
730 {AVDT_SCB_SND_TC_CLOSE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
731 /* AVDT_SCB_TC_CLOSE_EVT */
732 {AVDT_SCB_HDL_TC_CLOSE, AVDT_SCB_IGNORE, AVDT_SCB_IDLE_ST},
733 /* AVDT_SCB_TC_CONG_EVT */
734 {AVDT_SCB_IGNORE, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
735 /* AVDT_SCB_TC_DATA_EVT */
736 {AVDT_SCB_DROP_PKT, AVDT_SCB_IGNORE, AVDT_SCB_CLOSING_ST},
737 /* AVDT_SCB_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[] = {avdt_scb_st_idle, avdt_scb_st_conf,
745 avdt_scb_st_opening, avdt_scb_st_open,
746 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
762 log::verbose("SCB hdl={} event={}/{} state={} p_avdt_scb={} scb_index={}", avdt_scb_to_hdl(p_scb),
763 event, avdt_scb_evt_str[event], avdt_scb_st_str[p_scb->state],
764 std::format_ptr(p_scb), p_scb->stream_config.scb_index);
765
766 /* Check that we only send AVDT_SCB_API_WRITE_REQ_EVT to the active stream
767 * device */
768 uint8_t num_st_streams = 0;
769 int ccb_index = -1;
770 int scb_index = -1;
771
772 for (int i = 0; i < AVDT_NUM_LINKS; i++) {
773 for (int j = 0; j < AVDT_NUM_SEPS; j++) {
774 AvdtpScb* p_avdt_scb = &avdtp_cb.ccb[i].scb[j];
775 if (p_avdt_scb->allocated && avdt_scb_st_tbl[p_avdt_scb->state] == avdt_scb_st_stream) {
776 num_st_streams++;
777 ccb_index = i;
778 scb_index = j;
779 } else {
780 p_avdt_scb->curr_stream = false;
781 }
782 }
783 }
784
785 if (num_st_streams == 1) {
786 avdtp_cb.ccb[ccb_index].scb[scb_index].curr_stream = true;
787 } else if (num_st_streams > 1 && !p_scb->curr_stream && event == AVDT_SCB_API_WRITE_REQ_EVT) {
788 log::error("ignore AVDT_SCB_API_WRITE_REQ_EVT");
789 avdt_scb_free_pkt(p_scb, p_data);
790 return;
791 }
792
793 /* set current event */
794 p_scb->curr_evt = event;
795
796 /* look up the state table for the current state */
797 state_table = avdt_scb_st_tbl[p_scb->state];
798
799 /* set next state */
800 if (p_scb->state != state_table[event][AVDT_SCB_NEXT_STATE]) {
801 p_scb->state = state_table[event][AVDT_SCB_NEXT_STATE];
802 }
803
804 /* execute action functions */
805 for (int i = 0; i < AVDT_SCB_ACTIONS; i++) {
806 action = state_table[event][i];
807 if (action != AVDT_SCB_IGNORE) {
808 (*avdtp_cb.p_scb_act[action])(p_scb, p_data);
809 } else {
810 break;
811 }
812 }
813 }
814
815 /*******************************************************************************
816 *
817 * Function avdt_scb_init
818 *
819 * Description Initialize stream control block module.
820 *
821 *
822 * Returns Nothing.
823 *
824 ******************************************************************************/
avdt_scb_init(void)825 void avdt_scb_init(void) {
826 for (size_t i = 0; i < AVDT_NUM_LINKS; i++) {
827 for (size_t j = 0; j < AVDT_NUM_SEPS; j++) {
828 avdtp_cb.ccb[i].scb[j].Reset(0);
829 }
830 }
831
832 avdtp_cb.p_scb_act = avdt_scb_action;
833 }
834
835 /*******************************************************************************
836 *
837 * Function avdt_scb_alloc
838 *
839 * Description Allocate a stream control block.
840 *
841 *
842 * Returns pointer to the scb, or NULL if none could be allocated.
843 *
844 ******************************************************************************/
avdt_scb_alloc(uint8_t peer_id,const AvdtpStreamConfig & avdtp_stream_config)845 AvdtpScb* avdt_scb_alloc(uint8_t peer_id, const AvdtpStreamConfig& avdtp_stream_config) {
846 log::assert_that(peer_id < AVDT_NUM_LINKS, "assert failed: peer_id < AVDT_NUM_LINKS");
847
848 // Find available entry
849 AvdtpScb* p_scb = &avdtp_cb.ccb[peer_id].scb[0];
850 for (int i = 0; i < AVDT_NUM_SEPS; i++, p_scb++) {
851 if (!p_scb->allocated) {
852 p_scb->Allocate(&avdtp_cb.ccb[peer_id], avdtp_stream_config);
853 log::verbose("allocated (handle={}, psc_mask:0x{:x})", p_scb->ScbHandle(),
854 avdtp_stream_config.cfg.psc_mask);
855 return p_scb;
856 }
857 }
858
859 log::warn("out of AvdtScb entries for peer_id {}", peer_id);
860 return nullptr;
861 }
862
Allocate(AvdtpCcb * p_avdtp_ccb,const AvdtpStreamConfig & avdtp_stream_config)863 void AvdtpScb::Allocate(AvdtpCcb* p_avdtp_ccb, const AvdtpStreamConfig& avdtp_stream_config) {
864 uint8_t scb_handle = avdtp_cb.ComputeScbHandle(this);
865 Reset(scb_handle);
866 p_ccb = p_avdtp_ccb;
867 stream_config = avdtp_stream_config;
868 transport_channel_timer = alarm_new("avdtp_scb.transport_channel_timer");
869 allocated = true;
870 }
871
872 /*******************************************************************************
873 *
874 * Function avdt_scb_dealloc
875 *
876 * Description Deallocate a stream control block.
877 *
878 *
879 * Returns void.
880 *
881 ******************************************************************************/
avdt_scb_dealloc(AvdtpScb * p_scb,tAVDT_SCB_EVT *)882 void avdt_scb_dealloc(AvdtpScb* p_scb, tAVDT_SCB_EVT* /* p_data */) {
883 log::verbose("hdl={}", avdt_scb_to_hdl(p_scb));
884 p_scb->Recycle();
885 }
886
887 /*******************************************************************************
888 *
889 * Function avdt_scb_to_hdl
890 *
891 * Description Given a pointer to an scb, return its handle (or seid).
892 *
893 *
894 * Returns Index of scb.
895 *
896 ******************************************************************************/
avdt_scb_to_hdl(AvdtpScb * p_scb)897 uint8_t avdt_scb_to_hdl(AvdtpScb* p_scb) { return p_scb->ScbHandle(); }
898
899 /*******************************************************************************
900 *
901 * Function avdt_scb_by_hdl
902 *
903 * Description Given an scb handle (or seid), return a pointer to the scb.
904 *
905 *
906 * Returns Pointer to scb or NULL if index is out of range or scb
907 * is not allocated.
908 *
909 ******************************************************************************/
avdt_scb_by_hdl(uint8_t hdl)910 AvdtpScb* avdt_scb_by_hdl(uint8_t hdl) {
911 // Verify the index
912 if ((hdl < 1) || (hdl > AVDT_NUM_LINKS * AVDT_NUM_SEPS)) {
913 log::warn("SCB handle {} out of range", hdl);
914 return nullptr;
915 }
916
917 uint8_t index = hdl - 1;
918 size_t i = index / AVDT_NUM_SEPS;
919 size_t j = index % AVDT_NUM_SEPS;
920
921 AvdtpScb* p_scb = &avdtp_cb.ccb[i].scb[j];
922 // Verify the whether the scb is allocated
923 if (!p_scb->allocated) {
924 log::warn("SCB handle {} not allocated", hdl);
925 return nullptr;
926 }
927
928 log::verbose("SCB for handle {} found: p_scb={} scb_index={}", hdl, std::format_ptr(p_scb),
929 p_scb->stream_config.scb_index);
930 return p_scb;
931 }
932
933 /*******************************************************************************
934 *
935 * Function avdt_scb_verify
936 *
937 * Description Verify the condition of a list of scbs.
938 *
939 *
940 * Returns SEID that failed, or 0 if success.
941 *
942 ******************************************************************************/
avdt_scb_verify(AvdtpCcb * p_ccb,uint8_t state,uint8_t * p_seid,uint16_t num_seid,uint8_t * p_err_code)943 uint8_t avdt_scb_verify(AvdtpCcb* p_ccb, uint8_t state, uint8_t* p_seid, uint16_t num_seid,
944 uint8_t* p_err_code) {
945 log::verbose("avdt_scb_verify state {}", state);
946 /* set nonsupported command mask */
947 /* translate public state into private state */
948 uint8_t nsc_mask = 0;
949 if (state == AVDT_VERIFY_SUSPEND) {
950 nsc_mask = AvdtpStreamConfig::AVDT_NSC_SUSPEND;
951 }
952
953 /* verify every scb */
954 *p_err_code = 0;
955 for (int i = 0; (i < num_seid) && (i < AVDT_NUM_SEPS); i++) {
956 AvdtpScb* p_scb = avdt_scb_by_hdl(p_seid[i]);
957 if (p_scb == NULL) {
958 *p_err_code = AVDT_ERR_BAD_STATE;
959 return p_seid[i];
960 }
961
962 if (p_scb->p_ccb != p_ccb) {
963 *p_err_code = AVDT_ERR_BAD_STATE;
964 return p_seid[i];
965 }
966
967 if (p_scb->stream_config.nsc_mask & nsc_mask) {
968 *p_err_code = AVDT_ERR_NSC;
969 return p_seid[i];
970 }
971
972 switch (state) {
973 case AVDT_VERIFY_OPEN:
974 case AVDT_VERIFY_START:
975 if (p_scb->state != AVDT_SCB_OPEN_ST && p_scb->state != AVDT_SCB_STREAM_ST) {
976 *p_err_code = AVDT_ERR_BAD_STATE;
977 return p_seid[i];
978 }
979 break;
980
981 case AVDT_VERIFY_SUSPEND:
982 case AVDT_VERIFY_STREAMING:
983 if (p_scb->state != AVDT_SCB_STREAM_ST) {
984 *p_err_code = AVDT_ERR_BAD_STATE;
985 return p_seid[i];
986 }
987 break;
988 }
989 }
990
991 return 0;
992 }
993
994 /*******************************************************************************
995 *
996 * Function avdt_scb_peer_seid_list
997 *
998 * Description Given a list of SCB handles, return a list of peer SEIDs
999 * for the handles, copied in place into the struct passed in.
1000 *
1001 *
1002 * Returns Nothing.
1003 *
1004 ******************************************************************************/
avdt_scb_peer_seid_list(tAVDT_MULTI * p_multi)1005 void avdt_scb_peer_seid_list(tAVDT_MULTI* p_multi) {
1006 int i;
1007 AvdtpScb* p_scb;
1008
1009 for (i = 0; i < p_multi->num_seps; i++) {
1010 p_scb = avdt_scb_by_hdl(p_multi->seid_list[i]);
1011 if (p_scb != NULL) {
1012 p_multi->seid_list[i] = p_scb->peer_seid;
1013 }
1014 }
1015 }
1016