1 /*
2 * Copyright (C) 2016 BlueKitchen GmbH
3 *
4 * Redistribution and use in source and binary forms, with or without
5 * modification, are permitted provided that the following conditions
6 * are met:
7 *
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
13 * 3. Neither the name of the copyright holders nor the names of
14 * contributors may be used to endorse or promote products derived
15 * from this software without specific prior written permission.
16 * 4. Any redistribution, use, or modification is done solely for
17 * personal benefit and not for any commercial purpose or for
18 * monetary gain.
19 *
20 * THIS SOFTWARE IS PROVIDED BY BLUEKITCHEN GMBH AND CONTRIBUTORS
21 * ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
22 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
23 * FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL BLUEKITCHEN
24 * GMBH OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
25 * INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
26 * BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
27 * OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
28 * AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
29 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF
30 * THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31 * SUCH DAMAGE.
32 *
33 * Please inquire about commercial licensing options at
34 * [email protected]
35 *
36 */
37
38 #define BTSTACK_FILE__ "avrcp_controller.c"
39
40 #include <stdint.h>
41 #include <string.h>
42 #include <inttypes.h>
43
44 #include "classic/avrcp.h"
45 #include "classic/avrcp_controller.h"
46
47 #include "bluetooth_sdp.h"
48 #include "btstack_debug.h"
49 #include "btstack_event.h"
50
51 static const char * avrcp_default_controller_service_name = "AVRCP Controller";
52 static const char * avrcp_default_controller_service_provider_name = "BlueKitchen";
53
54 // made public in avrcp_controller.h
55 avrcp_context_t avrcp_controller_context;
56
avrcp_controller_calc_next_transaction_label(uint8_t current_transaction_label)57 static uint8_t avrcp_controller_calc_next_transaction_label(uint8_t current_transaction_label){
58 current_transaction_label++;
59 if (current_transaction_label == 16){
60 current_transaction_label = 1;
61 }
62 return current_transaction_label;
63 }
64
avrcp_controller_get_next_transaction_label(avrcp_connection_t * connection)65 static uint8_t avrcp_controller_get_next_transaction_label(avrcp_connection_t * connection){
66 connection->transaction_id_counter = avrcp_controller_calc_next_transaction_label(connection->transaction_id_counter);
67 return connection->transaction_id_counter;
68 }
69
avrcp_controller_is_transaction_id_valid(avrcp_connection_t * connection,uint8_t transaction_id)70 static bool avrcp_controller_is_transaction_id_valid(avrcp_connection_t * connection, uint8_t transaction_id){
71 uint8_t delta = ((int8_t) transaction_id - connection->controller_last_confirmed_transaction_id) & 0x0f;
72 return delta < 15;
73 }
74
avrcp_controller_custom_command_data_init(avrcp_connection_t * connection,avrcp_command_opcode_t opcode,avrcp_command_type_t command_type,avrcp_subunit_type_t subunit_type,avrcp_subunit_id_t subunit_id,avrcp_pdu_id_t pdu_id,uint32_t company_id)75 static void avrcp_controller_custom_command_data_init(avrcp_connection_t * connection,
76 avrcp_command_opcode_t opcode, avrcp_command_type_t command_type,
77 avrcp_subunit_type_t subunit_type, avrcp_subunit_id_t subunit_id,
78 avrcp_pdu_id_t pdu_id, uint32_t company_id){
79
80 connection->transaction_id = avrcp_controller_get_next_transaction_label(connection);
81 connection->command_opcode = opcode;
82 connection->command_type = command_type;
83 connection->subunit_type = subunit_type;
84 connection->subunit_id = subunit_id;
85 connection->company_id = company_id;
86 connection->pdu_id = pdu_id;
87 connection->data = NULL;
88 connection->data_offset = 0;
89 connection->data_len = 0;
90 }
91
avrcp_controller_vendor_dependent_command_data_init(avrcp_connection_t * connection,avrcp_command_type_t command_type,avrcp_pdu_id_t pdu_id,bool get_next_transaction_label)92 static void avrcp_controller_vendor_dependent_command_data_init(avrcp_connection_t * connection, avrcp_command_type_t command_type, avrcp_pdu_id_t pdu_id, bool get_next_transaction_label){
93 if (get_next_transaction_label){
94 connection->transaction_id = avrcp_controller_get_next_transaction_label(connection);
95 }
96 connection->command_opcode = AVRCP_CMD_OPCODE_VENDOR_DEPENDENT;
97 connection->subunit_type = AVRCP_SUBUNIT_TYPE_PANEL;
98 connection->subunit_id = AVRCP_SUBUNIT_ID;
99 connection->company_id = BT_SIG_COMPANY_ID;
100
101 connection->command_type = command_type;
102 connection->pdu_id = pdu_id;
103 connection->data = connection->message_body;
104 connection->data_offset = 0;
105 connection->data_len = 0;
106 }
107
avrcp_controller_pass_through_command_data_init(avrcp_connection_t * connection,avrcp_operation_id_t opid)108 static void avrcp_controller_pass_through_command_data_init(avrcp_connection_t * connection, avrcp_operation_id_t opid){
109 connection->transaction_id = avrcp_controller_get_next_transaction_label(connection);
110 connection->command_opcode = AVRCP_CMD_OPCODE_PASS_THROUGH;
111 connection->command_type = AVRCP_CTYPE_CONTROL;
112 connection->subunit_type = AVRCP_SUBUNIT_TYPE_PANEL;
113 connection->subunit_id = AVRCP_SUBUNIT_ID;
114
115 connection->company_id = 0;
116 connection->pdu_id = AVRCP_PDU_ID_UNDEFINED;
117 connection->operation_id = opid;
118
119 connection->data = connection->message_body;
120 connection->data_offset = 0;
121 connection->data_len = 0;
122 }
123
avrcp_controller_supports_browsing(uint16_t controller_supported_features)124 static int avrcp_controller_supports_browsing(uint16_t controller_supported_features){
125 return controller_supported_features & AVRCP_FEATURE_MASK_BROWSING;
126 }
127
avrcp_controller_prepare_custom_command_response(avrcp_connection_t * connection,uint16_t response_len,uint8_t * in_place_buffer)128 static void avrcp_controller_prepare_custom_command_response(avrcp_connection_t * connection, uint16_t response_len, uint8_t * in_place_buffer){
129 uint8_t pos = 0;
130 in_place_buffer[pos++] = HCI_EVENT_AVRCP_META;
131 // skip len
132 pos++;
133 in_place_buffer[pos++] = AVRCP_SUBEVENT_CUSTOM_COMMAND_RESPONSE;
134 little_endian_store_16(in_place_buffer, pos, connection->avrcp_cid);
135 pos += 2;
136 in_place_buffer[pos++] = (uint8_t)connection->command_type;
137 in_place_buffer[pos++] = (uint8_t)connection->pdu_id;
138 little_endian_store_16(in_place_buffer, pos, response_len);
139 pos += 2;
140 in_place_buffer[1] = pos + response_len - 2;
141 }
142
avrcp_controller_emit_notification_complete(avrcp_connection_t * connection,uint8_t status,uint8_t event_id,bool enabled)143 static void avrcp_controller_emit_notification_complete(avrcp_connection_t * connection, uint8_t status, uint8_t event_id, bool enabled){
144 uint8_t event[8];
145 uint8_t pos = 0;
146 event[pos++] = HCI_EVENT_AVRCP_META;
147 event[pos++] = sizeof(event) - 2;
148 event[pos++] = AVRCP_SUBEVENT_NOTIFICATION_STATE;
149 little_endian_store_16(event, pos, connection->avrcp_cid);
150 pos += 2;
151 event[pos++] = status;
152 event[pos++] = enabled ? 1 : 0;
153 event[pos++] = event_id;
154 UNUSED(pos);
155 (*avrcp_controller_context.avrcp_callback)(HCI_EVENT_PACKET, 0, event, sizeof(event));
156 }
157
avrcp_controller_emit_supported_events(avrcp_connection_t * connection)158 static void avrcp_controller_emit_supported_events(avrcp_connection_t * connection){
159 uint8_t ctype = (uint8_t) AVRCP_CTYPE_RESPONSE_CHANGED_STABLE;
160 uint8_t event_id;
161
162 for (event_id = (uint8_t) AVRCP_NOTIFICATION_EVENT_FIRST_INDEX; event_id < (uint8_t) AVRCP_NOTIFICATION_EVENT_LAST_INDEX; event_id++){
163 if ((connection->notifications_supported_by_target & (1 << event_id)) == 0){
164 continue;
165 }
166 uint8_t event[8];
167 uint8_t pos = 0;
168 event[pos++] = HCI_EVENT_AVRCP_META;
169 event[pos++] = sizeof(event) - 2;
170 event[pos++] = AVRCP_SUBEVENT_GET_CAPABILITY_EVENT_ID;
171 little_endian_store_16(event, pos, connection->avrcp_cid);
172 pos += 2;
173 event[pos++] = ctype;
174 event[pos++] = 0;
175 event[pos++] = event_id;
176 UNUSED(pos);
177 (*avrcp_controller_context.avrcp_callback)(HCI_EVENT_PACKET, 0, event, sizeof(event));
178 }
179
180 uint8_t event[7];
181 uint8_t pos = 0;
182 event[pos++] = HCI_EVENT_AVRCP_META;
183 event[pos++] = sizeof(event) - 2;
184 event[pos++] = AVRCP_SUBEVENT_GET_CAPABILITY_EVENT_ID_DONE;
185 little_endian_store_16(event, pos, connection->avrcp_cid);
186 pos += 2;
187 event[pos++] = ctype;
188 event[pos++] = 0;
189 UNUSED(pos);
190 (*avrcp_controller_context.avrcp_callback)(HCI_EVENT_PACKET, 0, event, sizeof(event));
191 }
192
avrcp_controller_emit_notification_for_event_id(uint16_t avrcp_cid,avrcp_notification_event_id_t event_id,avrcp_command_type_t ctype,const uint8_t * payload,uint16_t size)193 static void avrcp_controller_emit_notification_for_event_id(uint16_t avrcp_cid, avrcp_notification_event_id_t event_id,
194 avrcp_command_type_t ctype, const uint8_t *payload,
195 uint16_t size) {
196 switch (event_id){
197 case AVRCP_NOTIFICATION_EVENT_PLAYBACK_POS_CHANGED:{
198 if (size < 4) break;
199 uint32_t song_position = big_endian_read_32(payload, 0);
200 uint16_t offset = 0;
201 uint8_t event[10];
202 event[offset++] = HCI_EVENT_AVRCP_META;
203 event[offset++] = sizeof(event) - 2;
204 event[offset++] = AVRCP_SUBEVENT_NOTIFICATION_PLAYBACK_POS_CHANGED;
205 little_endian_store_16(event, offset, avrcp_cid);
206 offset += 2;
207 event[offset++] = ctype;
208 little_endian_store_32(event, offset, song_position);
209 offset += 4;
210 (*avrcp_controller_context.avrcp_callback)(HCI_EVENT_PACKET, 0, event, offset);
211 break;
212 }
213 case AVRCP_NOTIFICATION_EVENT_PLAYBACK_STATUS_CHANGED:{
214 if (size < 1) break;
215 uint16_t offset = 0;
216 uint8_t event[7];
217 event[offset++] = HCI_EVENT_AVRCP_META;
218 event[offset++] = sizeof(event) - 2;
219 event[offset++] = AVRCP_SUBEVENT_NOTIFICATION_PLAYBACK_STATUS_CHANGED;
220 little_endian_store_16(event, offset, avrcp_cid);
221 offset += 2;
222 event[offset++] = ctype;
223 event[offset++] = payload[0];
224 (*avrcp_controller_context.avrcp_callback)(HCI_EVENT_PACKET, 0, event, offset);
225 break;
226 }
227 case AVRCP_NOTIFICATION_EVENT_TRACK_CHANGED:{
228 uint16_t offset = 0;
229 uint8_t event[6];
230 event[offset++] = HCI_EVENT_AVRCP_META;
231 event[offset++] = sizeof(event) - 2;
232 event[offset++] = AVRCP_SUBEVENT_NOTIFICATION_TRACK_CHANGED;
233 little_endian_store_16(event, offset, avrcp_cid);
234 offset += 2;
235 event[offset++] = ctype;
236 (*avrcp_controller_context.avrcp_callback)(HCI_EVENT_PACKET, 0, event, offset);
237 break;
238 }
239 case AVRCP_NOTIFICATION_EVENT_NOW_PLAYING_CONTENT_CHANGED:{
240 uint16_t offset = 0;
241 uint8_t event[6];
242 event[offset++] = HCI_EVENT_AVRCP_META;
243 event[offset++] = sizeof(event) - 2;
244 event[offset++] = AVRCP_SUBEVENT_NOTIFICATION_NOW_PLAYING_CONTENT_CHANGED;
245 little_endian_store_16(event, offset, avrcp_cid);
246 offset += 2;
247 event[offset++] = ctype;
248 (*avrcp_controller_context.avrcp_callback)(HCI_EVENT_PACKET, 0, event, offset);
249 break;
250 }
251 case AVRCP_NOTIFICATION_EVENT_AVAILABLE_PLAYERS_CHANGED:{
252 uint16_t offset = 0;
253 uint8_t event[6];
254 event[offset++] = HCI_EVENT_AVRCP_META;
255 event[offset++] = sizeof(event) - 2;
256 event[offset++] = AVRCP_SUBEVENT_NOTIFICATION_AVAILABLE_PLAYERS_CHANGED;
257 little_endian_store_16(event, offset, avrcp_cid);
258 offset += 2;
259 event[offset++] = ctype;
260 (*avrcp_controller_context.avrcp_callback)(HCI_EVENT_PACKET, 0, event, offset);
261 break;
262 }
263 case AVRCP_NOTIFICATION_EVENT_VOLUME_CHANGED:{
264 if (size < 1) break;
265 uint16_t offset = 0;
266 uint8_t event[7];
267 event[offset++] = HCI_EVENT_AVRCP_META;
268 event[offset++] = sizeof(event) - 2;
269 event[offset++] = AVRCP_SUBEVENT_NOTIFICATION_VOLUME_CHANGED;
270 little_endian_store_16(event, offset, avrcp_cid);
271 offset += 2;
272 event[offset++] = ctype;
273 event[offset++] = payload[0] & 0x7F;
274 (*avrcp_controller_context.avrcp_callback)(HCI_EVENT_PACKET, 0, event, offset);
275 break;
276 }
277 case AVRCP_NOTIFICATION_EVENT_UIDS_CHANGED:{
278 if (size < 2) break;
279 uint8_t event[8];
280 uint16_t offset = 0;
281 uint16_t uuid = big_endian_read_16(payload, 0);
282 event[offset++] = HCI_EVENT_AVRCP_META;
283 event[offset++] = sizeof(event) - 2;
284 event[offset++] = AVRCP_SUBEVENT_NOTIFICATION_EVENT_UIDS_CHANGED;
285 little_endian_store_16(event, offset, avrcp_cid);
286 offset += 2;
287 event[offset++] = ctype;
288 little_endian_store_16(event, offset, uuid);
289 offset += 2;
290 (*avrcp_controller_context.avrcp_callback)(HCI_EVENT_PACKET, 0, event, offset);
291 break;
292 }
293
294 case AVRCP_NOTIFICATION_EVENT_TRACK_REACHED_END:{
295 uint16_t offset = 0;
296 uint8_t event[6];
297 event[offset++] = HCI_EVENT_AVRCP_META;
298 event[offset++] = sizeof(event) - 2;
299 event[offset++] = AVRCP_SUBEVENT_NOTIFICATION_EVENT_TRACK_REACHED_END;
300 little_endian_store_16(event, offset, avrcp_cid);
301 offset += 2;
302 event[offset++] = ctype;
303 (*avrcp_controller_context.avrcp_callback)(HCI_EVENT_PACKET, 0, event, offset);
304 break;
305 }
306 case AVRCP_NOTIFICATION_EVENT_TRACK_REACHED_START:{
307 uint16_t offset = 0;
308 uint8_t event[6];
309 event[offset++] = HCI_EVENT_AVRCP_META;
310 event[offset++] = sizeof(event) - 2;
311 event[offset++] = AVRCP_SUBEVENT_NOTIFICATION_EVENT_TRACK_REACHED_START;
312 little_endian_store_16(event, offset, avrcp_cid);
313 offset += 2;
314 event[offset++] = ctype;
315 (*avrcp_controller_context.avrcp_callback)(HCI_EVENT_PACKET, 0, event, offset);
316 break;
317 }
318 case AVRCP_NOTIFICATION_EVENT_BATT_STATUS_CHANGED:{
319 if (size < 1) break;
320 uint16_t offset = 0;
321 uint8_t event[7];
322 event[offset++] = HCI_EVENT_AVRCP_META;
323 event[offset++] = sizeof(event) - 2;
324 event[offset++] = AVRCP_SUBEVENT_NOTIFICATION_EVENT_BATT_STATUS_CHANGED;
325 little_endian_store_16(event, offset, avrcp_cid);
326 offset += 2;
327 event[offset++] = ctype;
328 event[offset++] = payload[0];
329 (*avrcp_controller_context.avrcp_callback)(HCI_EVENT_PACKET, 0, event, offset);
330 break;
331 }
332
333 case AVRCP_NOTIFICATION_EVENT_SYSTEM_STATUS_CHANGED:{
334 if (size < 1) break;
335 uint16_t offset = 0;
336 uint8_t event[7];
337 event[offset++] = HCI_EVENT_AVRCP_META;
338 event[offset++] = sizeof(event) - 2;
339 event[offset++] = AVRCP_SUBEVENT_NOTIFICATION_EVENT_SYSTEM_STATUS_CHANGED;
340 little_endian_store_16(event, offset, avrcp_cid);
341 offset += 2;
342 event[offset++] = ctype;
343 event[offset++] = payload[0];
344 (*avrcp_controller_context.avrcp_callback)(HCI_EVENT_PACKET, 0, event, offset);
345 break;
346 }
347
348 case AVRCP_NOTIFICATION_EVENT_PLAYER_APPLICATION_SETTING_CHANGED:
349 default:
350 log_info("avrcp: not implemented");
351 break;
352 }
353 }
354
avrcp_controller_emit_repeat_and_shuffle_mode(btstack_packet_handler_t callback,uint16_t avrcp_cid,uint8_t ctype,avrcp_repeat_mode_t repeat_mode,avrcp_shuffle_mode_t shuffle_mode)355 static void avrcp_controller_emit_repeat_and_shuffle_mode(btstack_packet_handler_t callback, uint16_t avrcp_cid, uint8_t ctype, avrcp_repeat_mode_t repeat_mode, avrcp_shuffle_mode_t shuffle_mode){
356 btstack_assert(callback != NULL);
357
358 uint8_t event[8];
359 int pos = 0;
360 event[pos++] = HCI_EVENT_AVRCP_META;
361 event[pos++] = sizeof(event) - 2;
362 event[pos++] = AVRCP_SUBEVENT_SHUFFLE_AND_REPEAT_MODE;
363 little_endian_store_16(event, pos, avrcp_cid);
364 pos += 2;
365 event[pos++] = ctype;
366 event[pos++] = repeat_mode;
367 event[pos++] = shuffle_mode;
368 (*callback)(HCI_EVENT_PACKET, 0, event, sizeof(event));
369 }
370
avrcp_controller_emit_now_playing_info_event_done(btstack_packet_handler_t callback,uint16_t avrcp_cid,uint8_t ctype,uint8_t status)371 static void avrcp_controller_emit_now_playing_info_event_done(btstack_packet_handler_t callback, uint16_t avrcp_cid, uint8_t ctype, uint8_t status){
372 uint8_t event[7];
373 int pos = 0;
374 event[pos++] = HCI_EVENT_AVRCP_META;
375 event[pos++] = sizeof(event) - 2;
376 event[pos++] = AVRCP_SUBEVENT_NOW_PLAYING_INFO_DONE;
377 little_endian_store_16(event, pos, avrcp_cid);
378 pos += 2;
379 event[pos++] = ctype;
380 event[pos++] = status;
381 (*callback)(HCI_EVENT_PACKET, 0, event, pos);
382 }
383
avrcp_controller_emit_now_playing_info_event(btstack_packet_handler_t callback,uint16_t avrcp_cid,uint8_t ctype,avrcp_media_attribute_id_t attr_id,uint8_t * value,uint16_t value_len)384 static void avrcp_controller_emit_now_playing_info_event(btstack_packet_handler_t callback, uint16_t avrcp_cid, uint8_t ctype, avrcp_media_attribute_id_t attr_id, uint8_t * value, uint16_t value_len){
385 uint8_t event[HCI_EVENT_BUFFER_SIZE];
386 uint16_t pos = 0;
387 event[pos++] = HCI_EVENT_AVRCP_META;
388 // reserve one byte for subevent type and data len
389 uint16_t data_len_pos = pos;
390 pos++;
391 uint16_t subevent_type_pos = pos;
392 pos++;
393 little_endian_store_16(event, pos, avrcp_cid);
394 pos += 2;
395 event[pos++] = ctype;
396
397 switch (attr_id){
398 case AVRCP_MEDIA_ATTR_TITLE:
399 event[subevent_type_pos] = AVRCP_SUBEVENT_NOW_PLAYING_TITLE_INFO;
400 btstack_assert(value_len <= 255);
401 event[pos++] = (uint8_t) value_len;
402 (void)memcpy(event + pos, value, value_len);
403 break;
404 case AVRCP_MEDIA_ATTR_ARTIST:
405 event[subevent_type_pos] = AVRCP_SUBEVENT_NOW_PLAYING_ARTIST_INFO;
406 btstack_assert(value_len <= 255);
407 event[pos++] = (uint8_t) value_len;
408 (void)memcpy(event + pos, value, value_len);
409 break;
410 case AVRCP_MEDIA_ATTR_ALBUM:
411 event[subevent_type_pos] = AVRCP_SUBEVENT_NOW_PLAYING_ALBUM_INFO;
412 btstack_assert(value_len <= 255);
413 event[pos++] = (uint8_t) value_len;
414 (void)memcpy(event + pos, value, value_len);
415 break;
416 case AVRCP_MEDIA_ATTR_GENRE:
417 event[subevent_type_pos] = AVRCP_SUBEVENT_NOW_PLAYING_GENRE_INFO;
418 btstack_assert(value_len <= 255);
419 event[pos++] = (uint8_t) value_len;
420 (void)memcpy(event + pos, value, value_len);
421 break;
422 #ifdef ENABLE_AVRCP_COVER_ART
423 case AVRCP_MEDIA_ATTR_DEFAULT_COVER_ART:
424 event[subevent_type_pos] = AVRCP_SUBEVENT_NOW_PLAYING_COVER_ART_INFO;
425 btstack_assert(value_len <= 255);
426 event[pos++] = (uint8_t) value_len;
427 (void)memcpy(event + pos, value, value_len);
428 break;
429 #endif
430 case AVRCP_MEDIA_ATTR_SONG_LENGTH_MS:
431 event[subevent_type_pos] = AVRCP_SUBEVENT_NOW_PLAYING_SONG_LENGTH_MS_INFO;
432 if (value){
433 little_endian_store_32(event, pos, btstack_atoi((char *)value));
434 } else {
435 little_endian_store_32(event, pos, 0);
436 }
437 pos += 4;
438 break;
439 case AVRCP_MEDIA_ATTR_TRACK:
440 event[subevent_type_pos] = AVRCP_SUBEVENT_NOW_PLAYING_TRACK_INFO;
441 if (value){
442 event[pos++] = btstack_atoi((char *)value);
443 } else {
444 event[pos++] = 0;
445 }
446 break;
447 case AVRCP_MEDIA_ATTR_TOTAL_NUM_ITEMS:
448 event[subevent_type_pos] = AVRCP_SUBEVENT_NOW_PLAYING_TOTAL_TRACKS_INFO;
449 if (value){
450 event[pos++] = btstack_atoi((char *)value);
451 } else {
452 event[pos++] = 0;
453 }
454 break;
455 default:
456 break;
457 }
458 event[data_len_pos] = pos - 2;
459 (*callback)(HCI_EVENT_PACKET, 0, event, pos);
460 }
461
avrcp_controller_emit_operation_status(btstack_packet_handler_t callback,uint8_t subevent,uint16_t avrcp_cid,uint8_t ctype,uint8_t operation_id)462 static void avrcp_controller_emit_operation_status(btstack_packet_handler_t callback, uint8_t subevent, uint16_t avrcp_cid, uint8_t ctype, uint8_t operation_id){
463 btstack_assert(callback != NULL);
464
465 uint8_t event[7];
466 int pos = 0;
467 event[pos++] = HCI_EVENT_AVRCP_META;
468 event[pos++] = sizeof(event) - 2;
469 event[pos++] = subevent;
470 little_endian_store_16(event, pos, avrcp_cid);
471 pos += 2;
472 event[pos++] = ctype;
473 event[pos++] = operation_id;
474 (*callback)(HCI_EVENT_PACKET, 0, event, sizeof(event));
475 }
476
avrcp_parser_reset(avrcp_connection_t * connection)477 static void avrcp_parser_reset(avrcp_connection_t * connection){
478 connection->list_offset = 0;
479 connection->parser_attribute_header_pos = 0;
480 connection->controller_num_received_fragments = 0;
481 connection->parser_state = AVRCP_PARSER_GET_ATTRIBUTE_HEADER;
482 }
483
avrcp_parser_process_byte(uint8_t byte,avrcp_connection_t * connection,avrcp_command_type_t ctype)484 static void avrcp_parser_process_byte(uint8_t byte, avrcp_connection_t * connection, avrcp_command_type_t ctype){
485 uint16_t attribute_total_value_len;
486 uint32_t attribute_id;
487 switch(connection->parser_state){
488 case AVRCP_PARSER_GET_ATTRIBUTE_HEADER:
489 connection->parser_attribute_header[connection->parser_attribute_header_pos++] = byte;
490 connection->list_offset++;
491
492 if (connection->parser_attribute_header_pos < AVRCP_ATTRIBUTE_HEADER_LEN) return;
493
494 attribute_total_value_len = big_endian_read_16(connection->parser_attribute_header, 6);
495 connection->attribute_value_len = btstack_min(attribute_total_value_len, AVRCP_MAX_ATTRIBUTE_SIZE);
496 if (connection->attribute_value_len > 0){
497 // get ready for attribute value
498 connection->parser_state = AVRCP_PARSER_GET_ATTRIBUTE_VALUE;
499 return;
500 }
501
502 // emit empty attribute
503 attribute_id = big_endian_read_32(connection->parser_attribute_header, 0);
504 avrcp_controller_emit_now_playing_info_event(avrcp_controller_context.avrcp_callback, connection->avrcp_cid, ctype, (avrcp_media_attribute_id_t) attribute_id, connection->attribute_value, connection->attribute_value_len);
505
506 // done, see below
507 break;
508
509 case AVRCP_PARSER_GET_ATTRIBUTE_VALUE:
510 connection->attribute_value[connection->attribute_value_offset++] = byte;
511 connection->list_offset++;
512
513 if (connection->attribute_value_offset < connection->attribute_value_len) return;
514
515 // emit (potentially partial) attribute
516 attribute_id = big_endian_read_32(connection->parser_attribute_header, 0);
517 avrcp_controller_emit_now_playing_info_event(avrcp_controller_context.avrcp_callback, connection->avrcp_cid, ctype, (avrcp_media_attribute_id_t) attribute_id, connection->attribute_value, connection->attribute_value_len);
518
519 attribute_total_value_len = big_endian_read_16(connection->parser_attribute_header, 6);
520 if (connection->attribute_value_offset < attribute_total_value_len){
521 // ignore rest of attribute
522 connection->parser_state = AVRCP_PARSER_IGNORE_REST_OF_ATTRIBUTE_VALUE;
523 return;
524 }
525
526 // done, see below
527 break;
528
529 case AVRCP_PARSER_IGNORE_REST_OF_ATTRIBUTE_VALUE:
530 connection->attribute_value_offset++;
531 connection->list_offset++;
532
533 attribute_total_value_len = big_endian_read_16(connection->parser_attribute_header, 6);
534 if (connection->attribute_value_offset < attribute_total_value_len) return;
535
536 // done, see below
537 break;
538
539 default:
540 return;
541 }
542
543 // attribute fully read, check if more to come
544 if (connection->list_offset < connection->list_size){
545 // more to come, reset parser
546 connection->parser_state = AVRCP_PARSER_GET_ATTRIBUTE_HEADER;
547 connection->parser_attribute_header_pos = 0;
548 connection->attribute_value_offset = 0;
549 } else {
550 // fully done
551 avrcp_parser_reset(connection);
552 avrcp_controller_emit_now_playing_info_event_done(avrcp_controller_context.avrcp_callback, connection->avrcp_cid, ctype, 0);
553 }
554 }
555
avrcp_controller_parse_and_emit_element_attrs(uint8_t * packet,uint16_t num_bytes_to_read,avrcp_connection_t * connection,avrcp_command_type_t ctype)556 static void avrcp_controller_parse_and_emit_element_attrs(uint8_t * packet, uint16_t num_bytes_to_read, avrcp_connection_t * connection, avrcp_command_type_t ctype){
557 int i;
558 for (i=0;i<num_bytes_to_read;i++){
559 avrcp_parser_process_byte(packet[i], connection, ctype);
560 }
561 }
562
avrcp_send_cmd_with_avctp_fragmentation(avrcp_connection_t * connection)563 static void avrcp_send_cmd_with_avctp_fragmentation(avrcp_connection_t * connection){
564 l2cap_reserve_packet_buffer();
565 uint8_t * packet = l2cap_get_outgoing_buffer();
566
567 uint16_t max_payload_size;
568 connection->avctp_packet_type = avctp_get_packet_type(connection, &max_payload_size);
569 connection->avrcp_packet_type = avrcp_get_packet_type(connection);
570
571 // non-fragmented: transport header (1) + PID (2)
572 // fragmented: transport header (1) + num packets (1) + PID (2)
573
574 uint16_t param_len = connection->data_len;
575 // AVCTP header
576 // transport header : transaction label | Packet_type | C/R | IPID (1 == invalid profile identifier)
577 uint16_t pos = 0;
578 packet[pos++] = (connection->transaction_id << 4) | (connection->avctp_packet_type << 2) | (AVRCP_COMMAND_FRAME << 1) | 0;
579
580 if (connection->avctp_packet_type == AVCTP_START_PACKET){
581 uint16_t max_frame_size = btstack_min(connection->l2cap_mtu, AVRCP_MAX_AV_C_MESSAGE_FRAME_SIZE);
582 // first packet: max_payload_size
583 // rest packets
584 uint16_t num_payload_bytes = param_len - max_payload_size;
585 uint16_t frame_size_for_continue_packet = max_frame_size - avctp_get_num_bytes_for_header(AVCTP_CONTINUE_PACKET);
586 uint16_t num_avctp_packets = (num_payload_bytes + frame_size_for_continue_packet - 1)/frame_size_for_continue_packet + 1;
587 btstack_assert(num_avctp_packets <= 255);
588 packet[pos++] = (uint8_t) num_avctp_packets;
589 }
590
591 switch (connection->avctp_packet_type){
592 case AVCTP_SINGLE_PACKET:
593 case AVCTP_START_PACKET:
594 connection->data_offset = 0;
595 // Profile IDentifier (PID)
596 packet[pos++] = BLUETOOTH_SERVICE_CLASS_AV_REMOTE_CONTROL >> 8;
597 packet[pos++] = BLUETOOTH_SERVICE_CLASS_AV_REMOTE_CONTROL & 0x00FF;
598
599 // command_type
600 packet[pos++] = connection->command_type;
601 // subunit_type | subunit ID
602 packet[pos++] = (connection->subunit_type << 3) | connection->subunit_id;
603 // opcode
604 packet[pos++] = (uint8_t)connection->command_opcode;
605
606 switch (connection->command_opcode){
607 case AVRCP_CMD_OPCODE_VENDOR_DEPENDENT:
608 big_endian_store_24(packet, pos, connection->company_id);
609 pos += 3;
610 packet[pos++] = connection->pdu_id;
611 packet[pos++] = connection->avrcp_packet_type; // reserved(upper 6) | AVRCP packet_type
612 big_endian_store_16(packet, pos, connection->data_len); // parameter length
613 pos += 2;
614 break;
615 case AVRCP_CMD_OPCODE_PASS_THROUGH:
616 packet[pos++] = connection->operation_id;
617 packet[pos++] = (uint8_t)connection->data_len; // parameter length
618 break;
619 case AVRCP_CMD_OPCODE_UNIT_INFO:
620 case AVRCP_CMD_OPCODE_SUBUNIT_INFO:
621 break;
622 default:
623 btstack_assert(false);
624 return;
625 }
626 break;
627 case AVCTP_CONTINUE_PACKET:
628 case AVCTP_END_PACKET:
629 break;
630 default:
631 btstack_assert(false);
632 return;
633 }
634 // compare number of bytes to store with the remaining buffer size
635 uint16_t bytes_to_copy = btstack_min(connection->data_len - connection->data_offset, max_payload_size - pos);
636
637 (void)memcpy(packet + pos, &connection->data[connection->data_offset], bytes_to_copy);
638 pos += bytes_to_copy;
639 connection->data_offset += bytes_to_copy;
640
641 l2cap_send_prepared(connection->l2cap_signaling_cid, pos);
642 }
643
avrcp_send_register_notification(avrcp_connection_t * connection,uint8_t event_id)644 static int avrcp_send_register_notification(avrcp_connection_t * connection, uint8_t event_id){
645 uint8_t command[18];
646 uint16_t pos = 0;
647 // transport header : transaction label | Packet_type | C/R | IPID (1 == invalid profile identifier)
648 connection->transaction_id = avrcp_controller_get_next_transaction_label(connection);
649 command[pos++] = (connection->transaction_id << 4) | (AVRCP_SINGLE_PACKET << 2) | (AVRCP_COMMAND_FRAME << 1) | 0;
650
651 command[pos++] = BLUETOOTH_SERVICE_CLASS_AV_REMOTE_CONTROL >> 8;
652 command[pos++] = BLUETOOTH_SERVICE_CLASS_AV_REMOTE_CONTROL & 0x00FF;
653 command[pos++] = AVRCP_CTYPE_NOTIFY;
654 command[pos++] = (AVRCP_SUBUNIT_TYPE_PANEL << 3) | AVRCP_SUBUNIT_ID;
655 command[pos++] = AVRCP_CMD_OPCODE_VENDOR_DEPENDENT;
656
657 big_endian_store_24(command, pos, BT_SIG_COMPANY_ID);
658 pos += 3;
659 command[pos++] = AVRCP_PDU_ID_REGISTER_NOTIFICATION;
660 command[pos++] = 0; // reserved(upper 6) | packet_type -> 0
661 big_endian_store_16(command, pos, 5); // parameter length
662 pos += 2;
663 command[pos++] = event_id;
664 big_endian_store_32(command, pos, 1); // send notification on playback position every second, for other notifications it is ignored
665 pos += 4;
666 return l2cap_send(connection->l2cap_signaling_cid, command, pos);
667 }
668
avrcp_press_and_hold_timeout_handler(btstack_timer_source_t * timer)669 static void avrcp_press_and_hold_timeout_handler(btstack_timer_source_t * timer){
670 UNUSED(timer);
671 avrcp_connection_t * connection = (avrcp_connection_t*) btstack_run_loop_get_timer_context(timer);
672 btstack_run_loop_set_timer(&connection->controller_press_and_hold_cmd_timer, 2000); // 2 seconds timeout
673 btstack_run_loop_add_timer(&connection->controller_press_and_hold_cmd_timer);
674 connection->state = AVCTP_W2_SEND_PRESS_COMMAND;
675 avrcp_request_can_send_now(connection, connection->l2cap_signaling_cid);
676 }
677
avrcp_press_and_hold_timer_start(avrcp_connection_t * connection)678 static void avrcp_press_and_hold_timer_start(avrcp_connection_t * connection){
679 btstack_run_loop_remove_timer(&connection->controller_press_and_hold_cmd_timer);
680 btstack_run_loop_set_timer_handler(&connection->controller_press_and_hold_cmd_timer, avrcp_press_and_hold_timeout_handler);
681 btstack_run_loop_set_timer_context(&connection->controller_press_and_hold_cmd_timer, connection);
682 btstack_run_loop_set_timer(&connection->controller_press_and_hold_cmd_timer, 2000); // 2 seconds timeout
683 btstack_run_loop_add_timer(&connection->controller_press_and_hold_cmd_timer);
684 }
685
avrcp_press_and_hold_timer_stop(avrcp_connection_t * connection)686 static void avrcp_press_and_hold_timer_stop(avrcp_connection_t * connection){
687 connection->controller_press_and_hold_cmd_active = false;
688 btstack_run_loop_remove_timer(&connection->controller_press_and_hold_cmd_timer);
689 }
690
691
avrcp_controller_request_pass_through_release_control_cmd(avrcp_connection_t * connection)692 static uint8_t avrcp_controller_request_pass_through_release_control_cmd(avrcp_connection_t * connection){
693 connection->state = AVCTP_W2_SEND_RELEASE_COMMAND;
694 if (connection->controller_press_and_hold_cmd_active){
695 avrcp_press_and_hold_timer_stop(connection);
696 }
697 connection->operation_id = (avrcp_operation_id_t)(0x80 | connection->operation_id);
698 connection->transaction_id = avrcp_controller_get_next_transaction_label(connection);
699 avrcp_request_can_send_now(connection, connection->l2cap_signaling_cid);
700 return ERROR_CODE_SUCCESS;
701 }
702
avrcp_controller_request_pass_through_press_control_cmd(uint16_t avrcp_cid,avrcp_operation_id_t opid,uint16_t playback_speed,bool continuous_cmd)703 static uint8_t avrcp_controller_request_pass_through_press_control_cmd(uint16_t avrcp_cid, avrcp_operation_id_t opid, uint16_t playback_speed, bool continuous_cmd){
704 UNUSED(playback_speed);
705
706 log_info("Send command %d", opid);
707 avrcp_connection_t * connection = avrcp_get_connection_for_avrcp_cid_for_role(AVRCP_CONTROLLER, avrcp_cid);
708 if (!connection){
709 return ERROR_CODE_UNKNOWN_CONNECTION_IDENTIFIER;
710 }
711
712 if (connection->state != AVCTP_CONNECTION_OPENED){
713 log_error("Connection in wrong state %d, expected %d. avrcp cid 0x%02x", connection->state, AVCTP_CONNECTION_OPENED, avrcp_cid);
714 return ERROR_CODE_COMMAND_DISALLOWED;
715 }
716 connection->state = AVCTP_W2_SEND_PRESS_COMMAND;
717 avrcp_controller_pass_through_command_data_init(connection, opid);
718
719 connection->controller_press_and_hold_cmd_active = continuous_cmd;
720 if (connection->controller_press_and_hold_cmd_active){
721 avrcp_press_and_hold_timer_start(connection);
722 }
723
724 avrcp_request_can_send_now(connection, connection->l2cap_signaling_cid);
725 return ERROR_CODE_SUCCESS;
726 }
727
request_single_pass_through_press_control_cmd(uint16_t avrcp_cid,avrcp_operation_id_t opid,uint16_t playback_speed)728 static uint8_t request_single_pass_through_press_control_cmd(uint16_t avrcp_cid, avrcp_operation_id_t opid, uint16_t playback_speed){
729 return avrcp_controller_request_pass_through_press_control_cmd(avrcp_cid, opid, playback_speed, false);
730 }
731
request_continuous_pass_through_press_control_cmd(uint16_t avrcp_cid,avrcp_operation_id_t opid,uint16_t playback_speed)732 static uint8_t request_continuous_pass_through_press_control_cmd(uint16_t avrcp_cid, avrcp_operation_id_t opid, uint16_t playback_speed){
733 return avrcp_controller_request_pass_through_press_control_cmd(avrcp_cid, opid, playback_speed, true);
734 }
735
avrcp_controller_get_capabilities_for_connection(avrcp_connection_t * connection,uint8_t capability_id)736 static void avrcp_controller_get_capabilities_for_connection(avrcp_connection_t * connection, uint8_t capability_id){
737 connection->state = AVCTP_W2_SEND_COMMAND;
738 avrcp_controller_vendor_dependent_command_data_init(connection, AVRCP_CTYPE_STATUS, AVRCP_PDU_ID_GET_CAPABILITIES, true);
739
740 // Parameter Length
741 connection->data_len = 1;
742 connection->data[0] = capability_id; // capability ID
743
744 avrcp_request_can_send_now(connection, connection->l2cap_signaling_cid);
745 }
746
avrcp_controller_register_notification(avrcp_connection_t * connection,avrcp_notification_event_id_t event_id)747 static uint8_t avrcp_controller_register_notification(avrcp_connection_t * connection, avrcp_notification_event_id_t event_id){
748 if ((connection->remote_capabilities_state == AVRCP_REMOTE_CAPABILITIES_KNOWN) && (connection->notifications_supported_by_target & (1 << event_id)) == 0){
749 return ERROR_CODE_UNSUPPORTED_FEATURE_OR_PARAMETER_VALUE;
750 }
751 if ((connection->controller_notifications_to_deregister & (1 << event_id)) != 0){
752 return ERROR_CODE_COMMAND_DISALLOWED;
753 }
754 if ( (connection->notifications_enabled & (1 << event_id)) != 0){
755 return ERROR_CODE_SUCCESS;
756 }
757 connection->controller_notifications_to_register |= (1 << event_id);
758
759 switch (connection->remote_capabilities_state){
760 case AVRCP_REMOTE_CAPABILITIES_NONE:
761 connection->remote_capabilities_state = AVRCP_REMOTE_CAPABILITIES_W4_QUERY_RESULT;
762 connection->controller_notifications_supported_by_target_suppress_emit_result = true;
763 avrcp_controller_get_capabilities_for_connection(connection, AVRCP_CAPABILITY_ID_EVENT);
764 break;
765 case AVRCP_REMOTE_CAPABILITIES_KNOWN:
766 avrcp_request_can_send_now(connection, connection->l2cap_signaling_cid);
767 break;
768 default:
769 break;
770 }
771 return ERROR_CODE_SUCCESS;
772 }
773
avrcp_controller_request_continuation(avrcp_connection_t * connection,avrcp_pdu_id_t pdu_id)774 static uint8_t avrcp_controller_request_continuation(avrcp_connection_t * connection, avrcp_pdu_id_t pdu_id){
775 connection->state = AVCTP_W2_SEND_COMMAND;
776 avrcp_controller_vendor_dependent_command_data_init(connection, AVRCP_CTYPE_CONTROL, pdu_id, false);
777
778 // Parameter Length
779 connection->data_len = 3;
780 big_endian_store_16(connection->data, 0, 1);
781 connection->data[2] = AVRCP_PDU_ID_GET_ELEMENT_ATTRIBUTES;
782
783 avrcp_request_can_send_now(connection, connection->l2cap_signaling_cid);
784 return ERROR_CODE_SUCCESS;
785 }
786
avrcp_controller_request_abort_continuation(avrcp_connection_t * connection)787 static uint8_t avrcp_controller_request_abort_continuation(avrcp_connection_t * connection){
788 return avrcp_controller_request_continuation(connection, AVRCP_PDU_ID_REQUEST_ABORT_CONTINUING_RESPONSE);
789 }
790
avrcp_controller_request_continue_response(avrcp_connection_t * connection)791 static uint8_t avrcp_controller_request_continue_response(avrcp_connection_t * connection){
792 return avrcp_controller_request_continuation(connection, AVRCP_PDU_ID_REQUEST_CONTINUING_RESPONSE);
793 }
794
avrcp_controller_handle_notification(avrcp_connection_t * connection,avrcp_command_type_t ctype,uint8_t * payload,uint16_t size)795 static void avrcp_controller_handle_notification(avrcp_connection_t *connection, avrcp_command_type_t ctype, uint8_t *payload, uint16_t size) {
796 if (size < 1) return;
797 uint16_t pos = 0;
798 avrcp_notification_event_id_t event_id = (avrcp_notification_event_id_t) payload[pos++];
799 if ( (event_id < AVRCP_NOTIFICATION_EVENT_FIRST_INDEX) || (event_id > AVRCP_NOTIFICATION_EVENT_LAST_INDEX)){
800 return;
801 }
802
803 uint16_t event_mask = (1 << event_id);
804 uint16_t reset_event_mask = ~event_mask;
805
806 switch (ctype){
807 case AVRCP_CTYPE_RESPONSE_REJECTED:
808 connection->controller_notifications_to_deregister &= reset_event_mask;
809 connection->controller_notifications_to_register &= reset_event_mask;
810 connection->controller_initial_status_reported &= reset_event_mask;
811 avrcp_controller_emit_notification_complete(connection, ERROR_CODE_UNSUPPORTED_FEATURE_OR_PARAMETER_VALUE, event_id, false);
812 return;
813
814 case AVRCP_CTYPE_RESPONSE_INTERIM:
815 // register as enabled
816 connection->notifications_enabled |= event_mask;
817
818 // check if initial value is already sent
819 if ((connection->controller_initial_status_reported & event_mask) != 0 ){
820 return;
821 }
822 // emit event only once, initially
823 avrcp_controller_emit_notification_complete(connection, ERROR_CODE_SUCCESS, event_id, true);
824 connection->controller_initial_status_reported |= event_mask;
825 // emit initial value after this switch
826 break;
827
828 case AVRCP_CTYPE_RESPONSE_CHANGED_STABLE:
829 // received change, event is considered de-registered
830 // we are re-enabling it automatically, if it is not
831 // explicitly disabled
832 connection->notifications_enabled &= reset_event_mask;
833 if ((connection->controller_notifications_to_deregister & event_mask) == 0){
834 avrcp_controller_register_notification(connection, event_id);
835 } else {
836 connection->controller_notifications_to_deregister &= reset_event_mask;
837 connection->controller_notifications_to_register &= reset_event_mask;
838 connection->controller_initial_status_reported &= reset_event_mask;
839 avrcp_controller_emit_notification_complete(connection, ERROR_CODE_SUCCESS, event_id, false);
840 }
841 break;
842
843 default:
844 return;
845 }
846
847 avrcp_controller_emit_notification_for_event_id(connection->avrcp_cid, event_id, ctype, payload + pos, size - pos);
848 }
849
850 #ifdef ENABLE_AVCTP_FRAGMENTATION
avctp_reassemble_message(avrcp_connection_t * connection,avctp_packet_type_t packet_type,uint8_t * packet,uint16_t size)851 static void avctp_reassemble_message(avrcp_connection_t * connection, avctp_packet_type_t packet_type, uint8_t *packet, uint16_t size){
852 // after header (transaction label and packet type)
853 uint16_t pos;
854 uint16_t bytes_to_store;
855
856 switch (packet_type){
857 case AVCTP_START_PACKET:
858 if (size < 2) return;
859
860 // store header
861 pos = 0;
862 connection->avctp_reassembly_buffer[pos] = packet[pos];
863 pos++;
864 connection->avctp_reassembly_size = pos;
865
866 // NOTE: num packets not needed for reassembly, ignoring it does not pose security risk -> no need to store it
867 pos++;
868
869 // PID in reassembled packet is at offset 1, it will be read later after the avctp_reassemble_message with AVCTP_END_PACKET is called
870
871 bytes_to_store = btstack_min(size - pos, sizeof(connection->avctp_reassembly_buffer) - connection->avctp_reassembly_size);
872 memcpy(&connection->avctp_reassembly_buffer[connection->avctp_reassembly_size], &packet[pos], bytes_to_store);
873 connection->avctp_reassembly_size += bytes_to_store;
874 break;
875
876 case AVCTP_CONTINUE_PACKET:
877 case AVCTP_END_PACKET:
878 if (size < 1) return;
879
880 // store remaining data, ignore header
881 pos = 1;
882 bytes_to_store = btstack_min(size - pos, sizeof(connection->avctp_reassembly_buffer) - connection->avctp_reassembly_size);
883 memcpy(&connection->avctp_reassembly_buffer[connection->avctp_reassembly_size], &packet[pos], bytes_to_store);
884 connection->avctp_reassembly_size += bytes_to_store;
885 break;
886
887 default:
888 return;
889 }
890 }
891 #endif
892
avrcp_handle_l2cap_data_packet_for_signaling_connection(avrcp_connection_t * connection,uint8_t * packet,uint16_t size)893 static void avrcp_handle_l2cap_data_packet_for_signaling_connection(avrcp_connection_t * connection, uint8_t *packet, uint16_t size){
894 if (size < 6u) return;
895 uint8_t pdu_id;
896 avrcp_packet_type_t vendor_dependent_avrcp_packet_type;
897
898 uint16_t pos = 0;
899 connection->controller_last_confirmed_transaction_id = packet[pos] >> 4;
900 avrcp_frame_type_t frame_type = (avrcp_frame_type_t)((packet[pos] >> 1) & 0x01);
901 avctp_packet_type_t packet_type = (avctp_packet_type_t)((packet[pos] >> 2) & 0x03);
902 pos++;
903
904 if (frame_type != AVRCP_RESPONSE_FRAME) return;
905
906 switch (packet_type){
907 case AVCTP_SINGLE_PACKET:
908 break;
909
910 #ifdef ENABLE_AVCTP_FRAGMENTATION
911 case AVCTP_START_PACKET:
912 case AVCTP_CONTINUE_PACKET:
913 avctp_reassemble_message(connection, packet_type, packet, size);
914 return;
915
916 case AVCTP_END_PACKET:
917 avctp_reassemble_message(connection, packet_type, packet, size);
918
919 packet = connection->avctp_reassembly_buffer;
920 size = connection->avctp_reassembly_size;
921 break;
922 #endif
923
924 default:
925 return;
926 }
927
928 pos += 2; // PID
929
930 avrcp_command_type_t ctype = (avrcp_command_type_t) packet[pos++];
931
932 #ifdef ENABLE_LOG_INFO
933 uint8_t byte_value = packet[pos];
934 avrcp_subunit_type_t subunit_type = (avrcp_subunit_type_t) (byte_value >> 3);
935 avrcp_subunit_type_t subunit_id = (avrcp_subunit_type_t) (byte_value & 0x07);
936 #endif
937 pos++;
938
939 uint8_t opcode = packet[pos++];
940 uint16_t param_length;
941
942 switch (opcode){
943 case AVRCP_CMD_OPCODE_SUBUNIT_INFO:{
944 if (connection->state != AVCTP_W2_RECEIVE_RESPONSE) return;
945 connection->state = AVCTP_CONNECTION_OPENED;
946
947 #ifdef ENABLE_LOG_INFO
948 // page, extension code (1)
949 pos++;
950 uint8_t unit_type = packet[pos] >> 3;
951 uint8_t max_subunit_ID = packet[pos] & 0x07;
952 log_info("SUBUNIT INFO response: ctype 0x%02x (0C), subunit_type 0x%02x (1F), subunit_id 0x%02x (07), opcode 0x%02x (30), target_unit_type 0x%02x, max_subunit_ID %d", ctype, subunit_type, subunit_id, opcode, unit_type, max_subunit_ID);
953 #endif
954 break;
955 }
956 case AVRCP_CMD_OPCODE_UNIT_INFO:{
957 if (connection->state != AVCTP_W2_RECEIVE_RESPONSE) return;
958 connection->state = AVCTP_CONNECTION_OPENED;
959
960 #ifdef ENABLE_LOG_INFO
961 // byte value 7 (1)
962 pos++;
963 uint8_t unit_type = packet[pos] >> 3;
964 uint8_t unit = packet[pos] & 0x07;
965 pos++;
966 uint32_t company_id = big_endian_read_24(packet, pos);
967 log_info("UNIT INFO response: ctype 0x%02x (0C), subunit_type 0x%02x (1F), subunit_id 0x%02x (07), opcode 0x%02x (30), target_unit_type 0x%02x, unit %d, company_id 0x%06" PRIx32,
968 ctype, subunit_type, subunit_id, opcode, unit_type, unit, company_id);
969 #endif
970 break;
971 }
972 case AVRCP_CMD_OPCODE_VENDOR_DEPENDENT:
973 if ((size - pos) < 7){
974 return;
975 }
976 // Company ID (3)
977 pos += 3;
978 // PDU ID (1)
979 pdu_id = packet[pos++];
980 // Packet Type (1)
981 vendor_dependent_avrcp_packet_type = (avrcp_packet_type_t)(packet[pos++] & 0x03);
982 // Param Length (2)
983 param_length = big_endian_read_16(packet, pos);
984 pos += 2;
985
986 if ((size - pos) < param_length) {
987 return;
988 }
989
990 // handle asynchronous notifications, without changing state
991 if (pdu_id == AVRCP_PDU_ID_REGISTER_NOTIFICATION){
992 avrcp_controller_handle_notification(connection, ctype, packet + pos, size - pos);
993 break;
994 }
995 if (connection->state != AVCTP_W2_RECEIVE_RESPONSE) return;
996 connection->state = AVCTP_CONNECTION_OPENED;
997
998 log_info("VENDOR DEPENDENT response: pdu id 0x%02x, param_length %d, status %s", pdu_id, param_length, avrcp_ctype2str(ctype));
999 switch (pdu_id){
1000 case AVRCP_PDU_ID_GET_CURRENT_PLAYER_APPLICATION_SETTING_VALUE:{
1001 uint8_t num_attributes = packet[pos++];
1002 int i;
1003 avrcp_repeat_mode_t repeat_mode = AVRCP_REPEAT_MODE_INVALID;
1004 avrcp_shuffle_mode_t shuffle_mode = AVRCP_SHUFFLE_MODE_INVALID;
1005 for (i = 0; i < num_attributes; i++){
1006 avrcp_player_application_setting_attribute_id_t attribute_id = (avrcp_player_application_setting_attribute_id_t)packet[pos++];
1007 uint8_t value = packet[pos++];
1008 switch (attribute_id){
1009 case AVRCP_PLAYER_APPLICATION_SETTING_ATTRIBUTE_ID_REPEAT_MODE_STATUS:
1010 repeat_mode = (avrcp_repeat_mode_t) value;
1011 break;
1012 case AVRCP_PLAYER_APPLICATION_SETTING_ATTRIBUTE_ID_SHUFFLE_STATUS:
1013 shuffle_mode = (avrcp_shuffle_mode_t) value;
1014 break;
1015 default:
1016 break;
1017 }
1018 }
1019 avrcp_controller_emit_repeat_and_shuffle_mode(avrcp_controller_context.avrcp_callback, connection->avrcp_cid, ctype, repeat_mode, shuffle_mode);
1020 break;
1021 }
1022
1023 case AVRCP_PDU_ID_LIST_PLAYER_APPLICATION_SETTING_ATTRIBUTES:{
1024 uint8_t num_attributes = packet[pos++];
1025 int i;
1026 for (i = 0; i < num_attributes; i++){
1027 avrcp_player_application_setting_attribute_id_t attribute_id = (avrcp_player_application_setting_attribute_id_t)packet[pos++];
1028 log_info("TODO send event: attribute_id %d", attribute_id);
1029 }
1030 break;
1031 }
1032
1033 case AVRCP_PDU_ID_LIST_PLAYER_APPLICATION_SETTING_VALUES:{
1034 uint8_t num_setting_values = packet[pos++];
1035 int i;
1036 for (i = 0; i < num_setting_values; i++){
1037 uint8_t value = packet[pos++];
1038 log_info("TODO send event: value %d", value);
1039 }
1040 break;
1041 }
1042
1043 case AVRCP_PDU_ID_GET_PLAYER_APPLICATION_SETTING_ATTRIBUTE_TEXT:{
1044 uint8_t num_attributes = packet[pos++];
1045
1046 int i;
1047 avrcp_repeat_mode_t repeat_mode = AVRCP_REPEAT_MODE_INVALID;
1048 avrcp_shuffle_mode_t shuffle_mode = AVRCP_SHUFFLE_MODE_INVALID;
1049 for (i = 0; i < num_attributes; i++){
1050 avrcp_player_application_setting_attribute_id_t attribute_id = (avrcp_player_application_setting_attribute_id_t)packet[pos++];
1051 uint8_t character_set_id = little_endian_read_16(packet, pos);
1052 pos += 2;
1053 uint8_t value_len = packet[pos++];
1054 char * value = (char *)&packet[pos];
1055 pos += value_len;
1056
1057 log_info("TODO send event: attribute_id %d, value_len %d, value %s", attribute_id, value_len, value);
1058 UNUSED(character_set_id);
1059 UNUSED(repeat_mode);
1060 UNUSED(shuffle_mode);
1061 switch (attribute_id){
1062 case AVRCP_PLAYER_APPLICATION_SETTING_ATTRIBUTE_ID_REPEAT_MODE_STATUS:
1063 break;
1064 case AVRCP_PLAYER_APPLICATION_SETTING_ATTRIBUTE_ID_SHUFFLE_STATUS:
1065 break;
1066 default:
1067 break;
1068 }
1069 }
1070 break;
1071 }
1072
1073 case AVRCP_PDU_ID_GET_PLAYER_APPLICATION_SETTING_VALUE_TEXT:{
1074 uint8_t num_setting_values = packet[pos++];
1075 int i;
1076 for (i = 0; i < num_setting_values; i++){
1077 uint8_t value = packet[pos++];
1078 log_info("TODO send event: value %d", value);
1079 }
1080 break;
1081 }
1082
1083 case AVRCP_PDU_ID_INFORM_DISPLAYABLE_CHARACTERSET:
1084 case AVRCP_PDU_ID_INFORM_BATTERY_STATUS_OF_CT:
1085 break;
1086
1087 case AVRCP_PDU_ID_SET_PLAYER_APPLICATION_SETTING_VALUE:{
1088 uint16_t offset = 0;
1089 uint8_t event[6];
1090 event[offset++] = HCI_EVENT_AVRCP_META;
1091 event[offset++] = sizeof(event) - 2;
1092 event[offset++] = AVRCP_SUBEVENT_PLAYER_APPLICATION_VALUE_RESPONSE;
1093 little_endian_store_16(event, offset, connection->avrcp_cid);
1094 offset += 2;
1095 event[offset++] = ctype;
1096 (*avrcp_controller_context.avrcp_callback)(HCI_EVENT_PACKET, 0, event, sizeof(event));
1097 break;
1098 }
1099
1100 case AVRCP_PDU_ID_SET_ABSOLUTE_VOLUME:{
1101 uint16_t offset = 0;
1102 uint8_t event[7];
1103 event[offset++] = HCI_EVENT_AVRCP_META;
1104 event[offset++] = sizeof(event) - 2;
1105 event[offset++] = AVRCP_SUBEVENT_SET_ABSOLUTE_VOLUME_RESPONSE;
1106 little_endian_store_16(event, offset, connection->avrcp_cid);
1107 offset += 2;
1108 event[offset++] = ctype;
1109 event[offset++] = packet[pos++];
1110 (*avrcp_controller_context.avrcp_callback)(HCI_EVENT_PACKET, 0, event, sizeof(event));
1111 break;
1112 }
1113
1114 case AVRCP_PDU_ID_GET_CAPABILITIES:{
1115 avrcp_capability_id_t capability_id = (avrcp_capability_id_t) packet[pos++];
1116 uint8_t capability_count = 0;
1117 if (param_length > 1){
1118 capability_count = packet[pos++];
1119 }
1120 uint16_t i;
1121 uint16_t offset;
1122 uint8_t event[10];
1123
1124 switch (capability_id){
1125
1126 case AVRCP_CAPABILITY_ID_COMPANY:
1127 for (i = 0; (i < capability_count) && ((size - pos) >= 3); i++){
1128 uint32_t company_id = big_endian_read_24(packet, pos);
1129 pos += 3;
1130 log_info(" 0x%06" PRIx32 ", ", company_id);
1131
1132 offset = 0;
1133 event[offset++] = HCI_EVENT_AVRCP_META;
1134 event[offset++] = sizeof(event) - 2;
1135 event[offset++] = AVRCP_SUBEVENT_GET_CAPABILITY_COMPANY_ID;
1136 little_endian_store_16(event, offset, connection->avrcp_cid);
1137 offset += 2;
1138 event[offset++] = ctype;
1139 event[offset++] = 0;
1140 little_endian_store_24(event, offset, company_id);
1141 offset += 3;
1142 (*avrcp_controller_context.avrcp_callback)(HCI_EVENT_PACKET, 0, event, offset);
1143 }
1144
1145 offset = 0;
1146 event[offset++] = HCI_EVENT_AVRCP_META;
1147 event[offset++] = sizeof(event) - 2;
1148 event[offset++] = AVRCP_SUBEVENT_GET_CAPABILITY_COMPANY_ID_DONE;
1149 little_endian_store_16(event, offset, connection->avrcp_cid);
1150 offset += 2;
1151 event[offset++] = ctype;
1152 event[offset++] = 0;
1153 (*avrcp_controller_context.avrcp_callback)(HCI_EVENT_PACKET, 0, event, offset);
1154 break;
1155
1156 case AVRCP_CAPABILITY_ID_EVENT:
1157 for (i = 0; (i < capability_count) && ((size - pos) >= 1); i++){
1158 uint8_t event_id = packet[pos++];
1159 connection->notifications_supported_by_target |= (1 << event_id);
1160 }
1161
1162 connection->remote_capabilities_state = AVRCP_REMOTE_CAPABILITIES_KNOWN;
1163
1164 // if the get supported events query is triggered by avrcp_controller_enable_notification call,
1165 // avrcp_controller_emit_supported_events should be suppressed
1166 if (connection->controller_notifications_supported_by_target_suppress_emit_result){
1167 connection->controller_notifications_supported_by_target_suppress_emit_result = false;
1168 // also, notification might not be supported
1169 // if so, emit AVRCP_SUBEVENT_ENABLE_NOTIFICATION_COMPLETE event to app,
1170 // and update controller_notifications_to_register bitmap
1171 for (i = (uint8_t)AVRCP_NOTIFICATION_EVENT_FIRST_INDEX; i < (uint8_t) AVRCP_NOTIFICATION_EVENT_LAST_INDEX; i++){
1172 if ((connection->controller_notifications_to_register & (1 << i)) != 0){
1173 if ((connection->notifications_supported_by_target & (1 << i)) == 0){
1174 avrcp_controller_emit_notification_complete(connection, ERROR_CODE_UNSUPPORTED_FEATURE_OR_PARAMETER_VALUE, (uint8_t) i, false);
1175 connection->controller_notifications_to_register &= ~(1 << i);
1176 }
1177 }
1178 }
1179 break;
1180 }
1181 // supported events are emitted only if the get supported events query
1182 // is triggered by avrcp_controller_get_supported_events call
1183 avrcp_controller_emit_supported_events(connection);
1184 break;
1185
1186 default:
1187 // ignore
1188 break;
1189 }
1190 break;
1191 }
1192
1193 case AVRCP_PDU_ID_GET_PLAY_STATUS:{
1194 uint32_t song_length = big_endian_read_32(packet, pos);
1195 pos += 4;
1196 uint32_t song_position = big_endian_read_32(packet, pos);
1197 pos += 4;
1198 uint8_t play_status = packet[pos];
1199
1200 uint8_t event[15];
1201 int offset = 0;
1202 event[offset++] = HCI_EVENT_AVRCP_META;
1203 event[offset++] = sizeof(event) - 2;
1204 event[offset++] = AVRCP_SUBEVENT_PLAY_STATUS;
1205 little_endian_store_16(event, offset, connection->avrcp_cid);
1206 offset += 2;
1207 event[offset++] = ctype;
1208 little_endian_store_32(event, offset, song_length);
1209 offset += 4;
1210 little_endian_store_32(event, offset, song_position);
1211 offset += 4;
1212 event[offset++] = play_status;
1213 (*avrcp_controller_context.avrcp_callback)(HCI_EVENT_PACKET, 0, event, sizeof(event));
1214 break;
1215 }
1216
1217 case AVRCP_PDU_ID_GET_ELEMENT_ATTRIBUTES:
1218 switch (vendor_dependent_avrcp_packet_type){
1219 case AVRCP_START_PACKET:
1220 case AVRCP_SINGLE_PACKET:
1221 avrcp_parser_reset(connection);
1222 connection->list_size = param_length;
1223 // num_attributes
1224 pos++;
1225
1226 avrcp_controller_parse_and_emit_element_attrs(packet+pos, size-pos, connection, ctype);
1227 if (vendor_dependent_avrcp_packet_type == AVRCP_START_PACKET){
1228 avrcp_controller_request_continue_response(connection);
1229 return;
1230 }
1231 break;
1232 case AVRCP_CONTINUE_PACKET:
1233 case AVRCP_END_PACKET:
1234 connection->controller_num_received_fragments++;
1235
1236 if (connection->controller_num_received_fragments < connection->controller_max_num_fragments){
1237 avrcp_controller_parse_and_emit_element_attrs(packet+pos, size-pos, connection, ctype);
1238
1239 if (vendor_dependent_avrcp_packet_type == AVRCP_CONTINUE_PACKET){
1240 avrcp_controller_request_continue_response(connection);
1241 return;
1242 }
1243 } else {
1244 avrcp_controller_emit_now_playing_info_event_done(avrcp_controller_context.avrcp_callback, connection->avrcp_cid, ctype, 1);
1245 avrcp_parser_reset(connection);
1246 avrcp_controller_request_abort_continuation(connection);
1247 return;
1248 }
1249 break;
1250 default:
1251 btstack_assert(false);
1252 break;
1253 }
1254 break;
1255
1256 default:
1257 // custom command response comes here
1258 switch (pdu_id){
1259 case AVRCP_PDU_ID_REQUEST_ABORT_CONTINUING_RESPONSE:
1260 avrcp_controller_emit_now_playing_info_event_done(avrcp_controller_context.avrcp_callback, connection->avrcp_cid, ctype, 0);
1261 break;
1262 default:
1263 if (pdu_id != connection->pdu_id) {
1264 break;
1265 }
1266 uint8_t *in_place_buffer = packet + pos - 9;
1267 avrcp_controller_prepare_custom_command_response(connection, param_length,
1268 in_place_buffer);
1269 (*avrcp_controller_context.avrcp_callback)(HCI_EVENT_PACKET, 0, in_place_buffer,
1270 param_length + 9);
1271
1272 break;
1273 }
1274 break;
1275 }
1276 break;
1277 case AVRCP_CMD_OPCODE_PASS_THROUGH:{
1278 if ((size - pos) < 1) return;
1279 uint8_t operation_id = packet[pos++];
1280 UNUSED(pos);
1281 switch (connection->state){
1282 case AVCTP_W2_RECEIVE_PRESS_RESPONSE:
1283 // trigger release for simple command:
1284 if (!connection->controller_press_and_hold_cmd_active){
1285 connection->state = AVCTP_W2_SEND_RELEASE_COMMAND;
1286 break;
1287 }
1288 // for press and hold, send release if it just has been requested, otherwise, wait for next repeat
1289 if (connection->controller_press_and_hold_cmd_release){
1290 connection->controller_press_and_hold_cmd_release = false;
1291 connection->state = AVCTP_W2_SEND_RELEASE_COMMAND;
1292 } else {
1293 connection->state = AVCTP_W4_STOP;
1294 }
1295 break;
1296 case AVCTP_W2_RECEIVE_RESPONSE:
1297 connection->state = AVCTP_CONNECTION_OPENED;
1298 break;
1299 default:
1300 break;
1301 }
1302 if (connection->state == AVCTP_W4_STOP){
1303 avrcp_controller_emit_operation_status(avrcp_controller_context.avrcp_callback, AVRCP_SUBEVENT_OPERATION_START, connection->avrcp_cid, ctype, operation_id);
1304 }
1305 if (connection->state == AVCTP_CONNECTION_OPENED) {
1306 // RELEASE response
1307 operation_id = operation_id & 0x7F;
1308 avrcp_controller_emit_operation_status(avrcp_controller_context.avrcp_callback, AVRCP_SUBEVENT_OPERATION_COMPLETE, connection->avrcp_cid, ctype, operation_id);
1309 }
1310 if (connection->state == AVCTP_W2_SEND_RELEASE_COMMAND){
1311 // PRESS response
1312 avrcp_controller_request_pass_through_release_control_cmd(connection);
1313 }
1314 break;
1315 }
1316 default:
1317 break;
1318 }
1319
1320 // trigger pending notification reqistrations
1321 if ((connection->state == AVCTP_CONNECTION_OPENED) && connection->controller_notifications_to_register){
1322 avrcp_request_can_send_now(connection, connection->l2cap_signaling_cid);
1323 }
1324 }
1325
avrcp_controller_handle_can_send_now(avrcp_connection_t * connection)1326 static void avrcp_controller_handle_can_send_now(avrcp_connection_t * connection){
1327 // identifier (9) + num attributes (1) + attributes (4 * num attributes)
1328 uint8_t get_element_attributes_command[9+8*((AVRCP_MEDIA_ATTR_NUM-AVRCP_MEDIA_ATTR_TITLE) + 1)];
1329 uint16_t pos;
1330 uint16_t num_attributes_index;
1331 uint8_t i;
1332
1333 switch (connection->state){
1334 case AVCTP_W2_SEND_PRESS_COMMAND:
1335 avrcp_send_cmd_with_avctp_fragmentation(connection);
1336 connection->state = AVCTP_W2_RECEIVE_PRESS_RESPONSE;
1337 return;
1338
1339 case AVCTP_W2_SEND_RELEASE_COMMAND:
1340 avrcp_send_cmd_with_avctp_fragmentation(connection);
1341 connection->state = AVCTP_W2_RECEIVE_RESPONSE;
1342 return;
1343
1344 case AVCTP_W2_SEND_COMMAND:
1345 avrcp_send_cmd_with_avctp_fragmentation(connection);
1346 if (connection->data_offset < connection->data_len){
1347 // continue AVCTP fragmentation
1348 avrcp_request_can_send_now(connection, connection->l2cap_signaling_cid);
1349 return;
1350 }
1351 connection->state = AVCTP_W2_RECEIVE_RESPONSE;
1352 return;
1353 case AVCTP_W2_SEND_GET_ELEMENT_ATTRIBUTES_REQUEST:
1354 // build command in local buffer
1355 pos = 0;
1356 connection->data = get_element_attributes_command;
1357 // write identifier
1358 memset(connection->data, 0, 8);
1359 pos += 8;
1360 num_attributes_index = pos;
1361 // If num_attributes is set to zero, all attribute information shall be returned,
1362 // and the AttributeID field is omitted
1363 connection->data[num_attributes_index] = 0;
1364 pos++;
1365 for (i = 0; i < (uint8_t)AVRCP_MEDIA_ATTR_NUM - (uint8_t)AVRCP_MEDIA_ATTR_TITLE; i++){
1366 if ((connection->controller_element_attributes & (1<<i)) != 0){
1367 // every attribute is 4 bytes long
1368 big_endian_store_32(connection->data, pos, AVRCP_MEDIA_ATTR_TITLE + i);
1369 pos += 4;
1370 connection->data[num_attributes_index]++;
1371 }
1372 }
1373
1374 // Parameter Length
1375 connection->data_len = pos;
1376
1377 log_info("AVCTP_W2_SEND_GET_ELEMENT_ATTRIBUTES_REQUEST, len %u", connection->data_len);
1378
1379 // send data - assume it will fit into one packet
1380 avrcp_send_cmd_with_avctp_fragmentation(connection);
1381 connection->state = AVCTP_W2_RECEIVE_RESPONSE;
1382 return;
1383 default:
1384 break;
1385 }
1386
1387 // send register notification if queued,
1388 // avrcp_handle_l2cap_data_packet_for_signaling_connection will trigger next one
1389 if (connection->controller_notifications_to_register != 0){
1390 uint8_t event_id;
1391 for (event_id = (uint8_t)AVRCP_NOTIFICATION_EVENT_FIRST_INDEX; event_id < (uint8_t)AVRCP_NOTIFICATION_EVENT_LAST_INDEX; event_id++){
1392 if (connection->controller_notifications_to_register & (1 << event_id)){
1393 connection->controller_notifications_to_register &= ~ (1 << event_id);
1394 avrcp_send_register_notification(connection, event_id);
1395 return;
1396 }
1397 }
1398 }
1399 }
1400
avrcp_controller_packet_handler(uint8_t packet_type,uint16_t channel,uint8_t * packet,uint16_t size)1401 static void avrcp_controller_packet_handler(uint8_t packet_type, uint16_t channel, uint8_t *packet, uint16_t size){
1402 avrcp_connection_t * connection;
1403
1404 switch (packet_type) {
1405 case L2CAP_DATA_PACKET:
1406 connection = avrcp_get_connection_for_l2cap_signaling_cid_for_role(AVRCP_CONTROLLER, channel);
1407 avrcp_handle_l2cap_data_packet_for_signaling_connection(connection, packet, size);
1408 break;
1409
1410 case HCI_EVENT_PACKET:
1411 switch (hci_event_packet_get_type(packet)){
1412 case L2CAP_EVENT_CAN_SEND_NOW:
1413 connection = avrcp_get_connection_for_l2cap_signaling_cid_for_role(AVRCP_CONTROLLER, channel);
1414 avrcp_controller_handle_can_send_now(connection);
1415 break;
1416 default:
1417 break;
1418 }
1419 default:
1420 break;
1421 }
1422 }
1423
avrcp_controller_create_sdp_record(uint8_t * service,uint32_t service_record_handle,uint16_t supported_features,const char * service_name,const char * service_provider_name)1424 void avrcp_controller_create_sdp_record(uint8_t * service, uint32_t service_record_handle, uint16_t supported_features, const char * service_name, const char * service_provider_name){
1425 if (service_name == NULL){
1426 service_name = avrcp_default_controller_service_name;
1427 }
1428 if (service_provider_name == NULL){
1429 service_provider_name = avrcp_default_controller_service_provider_name;
1430 }
1431 avrcp_create_sdp_record(true, service, service_record_handle, avrcp_controller_supports_browsing(supported_features), supported_features, service_name, service_provider_name);
1432 }
1433
avrcp_controller_init(void)1434 void avrcp_controller_init(void){
1435 avrcp_controller_context.role = AVRCP_CONTROLLER;
1436 avrcp_controller_context.packet_handler = avrcp_controller_packet_handler;
1437 avrcp_register_controller_packet_handler(&avrcp_controller_packet_handler);
1438 }
1439
avrcp_controller_deinit(void)1440 void avrcp_controller_deinit(void){
1441 memset(&avrcp_controller_context, 0, sizeof(avrcp_context_t));
1442 }
1443
avrcp_controller_register_packet_handler(btstack_packet_handler_t callback)1444 void avrcp_controller_register_packet_handler(btstack_packet_handler_t callback){
1445 btstack_assert(callback != NULL);
1446 avrcp_controller_context.avrcp_callback = callback;
1447 }
1448
1449
avrcp_controller_play(uint16_t avrcp_cid)1450 uint8_t avrcp_controller_play(uint16_t avrcp_cid){
1451 return request_single_pass_through_press_control_cmd(avrcp_cid, AVRCP_OPERATION_ID_PLAY, 0);
1452 }
1453
avrcp_controller_stop(uint16_t avrcp_cid)1454 uint8_t avrcp_controller_stop(uint16_t avrcp_cid){
1455 return request_single_pass_through_press_control_cmd(avrcp_cid, AVRCP_OPERATION_ID_STOP, 0);
1456 }
1457
avrcp_controller_pause(uint16_t avrcp_cid)1458 uint8_t avrcp_controller_pause(uint16_t avrcp_cid){
1459 return request_single_pass_through_press_control_cmd(avrcp_cid, AVRCP_OPERATION_ID_PAUSE, 0);
1460 }
1461
avrcp_controller_forward(uint16_t avrcp_cid)1462 uint8_t avrcp_controller_forward(uint16_t avrcp_cid){
1463 return request_single_pass_through_press_control_cmd(avrcp_cid, AVRCP_OPERATION_ID_FORWARD, 0);
1464 }
1465
avrcp_controller_backward(uint16_t avrcp_cid)1466 uint8_t avrcp_controller_backward(uint16_t avrcp_cid){
1467 return request_single_pass_through_press_control_cmd(avrcp_cid, AVRCP_OPERATION_ID_BACKWARD, 0);
1468 }
1469
avrcp_controller_volume_up(uint16_t avrcp_cid)1470 uint8_t avrcp_controller_volume_up(uint16_t avrcp_cid){
1471 return request_single_pass_through_press_control_cmd(avrcp_cid, AVRCP_OPERATION_ID_VOLUME_UP, 0);
1472 }
1473
avrcp_controller_volume_down(uint16_t avrcp_cid)1474 uint8_t avrcp_controller_volume_down(uint16_t avrcp_cid){
1475 return request_single_pass_through_press_control_cmd(avrcp_cid, AVRCP_OPERATION_ID_VOLUME_DOWN, 0);
1476 }
1477
avrcp_controller_mute(uint16_t avrcp_cid)1478 uint8_t avrcp_controller_mute(uint16_t avrcp_cid){
1479 return request_single_pass_through_press_control_cmd(avrcp_cid, AVRCP_OPERATION_ID_MUTE, 0);
1480 }
1481
avrcp_controller_skip(uint16_t avrcp_cid)1482 uint8_t avrcp_controller_skip(uint16_t avrcp_cid){
1483 return request_single_pass_through_press_control_cmd(avrcp_cid, AVRCP_OPERATION_ID_SKIP, 0);
1484 }
1485
avrcp_controller_fast_forward(uint16_t avrcp_cid)1486 uint8_t avrcp_controller_fast_forward(uint16_t avrcp_cid){
1487 return request_single_pass_through_press_control_cmd(avrcp_cid, AVRCP_OPERATION_ID_FAST_FORWARD, 0);
1488 }
1489
avrcp_controller_rewind(uint16_t avrcp_cid)1490 uint8_t avrcp_controller_rewind(uint16_t avrcp_cid){
1491 return request_single_pass_through_press_control_cmd(avrcp_cid, AVRCP_OPERATION_ID_REWIND, 0);
1492 }
1493
1494 /* start continuous cmds */
1495
avrcp_controller_start_press_and_hold_cmd(uint16_t avrcp_cid,avrcp_operation_id_t operation_id)1496 uint8_t avrcp_controller_start_press_and_hold_cmd(uint16_t avrcp_cid, avrcp_operation_id_t operation_id){
1497 return request_continuous_pass_through_press_control_cmd(avrcp_cid, operation_id, 0);
1498 }
1499
avrcp_controller_press_and_hold_play(uint16_t avrcp_cid)1500 uint8_t avrcp_controller_press_and_hold_play(uint16_t avrcp_cid){
1501 return request_continuous_pass_through_press_control_cmd(avrcp_cid, AVRCP_OPERATION_ID_PLAY, 0);
1502 }
avrcp_controller_press_and_hold_stop(uint16_t avrcp_cid)1503 uint8_t avrcp_controller_press_and_hold_stop(uint16_t avrcp_cid){
1504 return request_continuous_pass_through_press_control_cmd(avrcp_cid, AVRCP_OPERATION_ID_STOP, 0);
1505 }
avrcp_controller_press_and_hold_pause(uint16_t avrcp_cid)1506 uint8_t avrcp_controller_press_and_hold_pause(uint16_t avrcp_cid){
1507 return request_continuous_pass_through_press_control_cmd(avrcp_cid, AVRCP_OPERATION_ID_PAUSE, 0);
1508 }
avrcp_controller_press_and_hold_forward(uint16_t avrcp_cid)1509 uint8_t avrcp_controller_press_and_hold_forward(uint16_t avrcp_cid){
1510 return request_continuous_pass_through_press_control_cmd(avrcp_cid, AVRCP_OPERATION_ID_FORWARD, 0);
1511 }
avrcp_controller_press_and_hold_backward(uint16_t avrcp_cid)1512 uint8_t avrcp_controller_press_and_hold_backward(uint16_t avrcp_cid){
1513 return request_continuous_pass_through_press_control_cmd(avrcp_cid, AVRCP_OPERATION_ID_BACKWARD, 0);
1514 }
avrcp_controller_press_and_hold_fast_forward(uint16_t avrcp_cid)1515 uint8_t avrcp_controller_press_and_hold_fast_forward(uint16_t avrcp_cid){
1516 return request_continuous_pass_through_press_control_cmd(avrcp_cid, AVRCP_OPERATION_ID_FAST_FORWARD, 0);
1517 }
avrcp_controller_press_and_hold_rewind(uint16_t avrcp_cid)1518 uint8_t avrcp_controller_press_and_hold_rewind(uint16_t avrcp_cid){
1519 return request_continuous_pass_through_press_control_cmd(avrcp_cid, AVRCP_OPERATION_ID_REWIND, 0);
1520 }
avrcp_controller_press_and_hold_volume_up(uint16_t avrcp_cid)1521 uint8_t avrcp_controller_press_and_hold_volume_up(uint16_t avrcp_cid){
1522 return request_continuous_pass_through_press_control_cmd(avrcp_cid, AVRCP_OPERATION_ID_VOLUME_UP, 0);
1523 }
avrcp_controller_press_and_hold_volume_down(uint16_t avrcp_cid)1524 uint8_t avrcp_controller_press_and_hold_volume_down(uint16_t avrcp_cid){
1525 return request_continuous_pass_through_press_control_cmd(avrcp_cid, AVRCP_OPERATION_ID_VOLUME_DOWN, 0);
1526 }
avrcp_controller_press_and_hold_mute(uint16_t avrcp_cid)1527 uint8_t avrcp_controller_press_and_hold_mute(uint16_t avrcp_cid){
1528 return request_continuous_pass_through_press_control_cmd(avrcp_cid, AVRCP_OPERATION_ID_MUTE, 0);
1529 }
1530
avrcp_controller_0(uint16_t avrcp_cid)1531 uint8_t avrcp_controller_0(uint16_t avrcp_cid){
1532 return request_single_pass_through_press_control_cmd(avrcp_cid, AVRCP_OPERATION_ID_0, 0);
1533 }
avrcp_controller_1(uint16_t avrcp_cid)1534 uint8_t avrcp_controller_1(uint16_t avrcp_cid){
1535 return request_single_pass_through_press_control_cmd(avrcp_cid, AVRCP_OPERATION_ID_1, 0);
1536 }
avrcp_controller_2(uint16_t avrcp_cid)1537 uint8_t avrcp_controller_2(uint16_t avrcp_cid){
1538 return request_single_pass_through_press_control_cmd(avrcp_cid, AVRCP_OPERATION_ID_2, 0);
1539 }
avrcp_controller_3(uint16_t avrcp_cid)1540 uint8_t avrcp_controller_3(uint16_t avrcp_cid){
1541 return request_single_pass_through_press_control_cmd(avrcp_cid, AVRCP_OPERATION_ID_3, 0);
1542 }
avrcp_controller_4(uint16_t avrcp_cid)1543 uint8_t avrcp_controller_4(uint16_t avrcp_cid){
1544 return request_single_pass_through_press_control_cmd(avrcp_cid, AVRCP_OPERATION_ID_4, 0);
1545 }
avrcp_controller_5(uint16_t avrcp_cid)1546 uint8_t avrcp_controller_5(uint16_t avrcp_cid){
1547 return request_single_pass_through_press_control_cmd(avrcp_cid, AVRCP_OPERATION_ID_5, 0);
1548 }
avrcp_controller_6(uint16_t avrcp_cid)1549 uint8_t avrcp_controller_6(uint16_t avrcp_cid){
1550 return request_single_pass_through_press_control_cmd(avrcp_cid, AVRCP_OPERATION_ID_6, 0);
1551 }
avrcp_controller_7(uint16_t avrcp_cid)1552 uint8_t avrcp_controller_7(uint16_t avrcp_cid){
1553 return request_single_pass_through_press_control_cmd(avrcp_cid, AVRCP_OPERATION_ID_7, 0);
1554 }
avrcp_controller_8(uint16_t avrcp_cid)1555 uint8_t avrcp_controller_8(uint16_t avrcp_cid){
1556 return request_single_pass_through_press_control_cmd(avrcp_cid, AVRCP_OPERATION_ID_8, 0);
1557 }
avrcp_controller_9(uint16_t avrcp_cid)1558 uint8_t avrcp_controller_9(uint16_t avrcp_cid){
1559 return request_single_pass_through_press_control_cmd(avrcp_cid, AVRCP_OPERATION_ID_9, 0);
1560 }
avrcp_controller_dot(uint16_t avrcp_cid)1561 uint8_t avrcp_controller_dot(uint16_t avrcp_cid){
1562 return request_single_pass_through_press_control_cmd(avrcp_cid, AVRCP_OPERATION_ID_DOT, 0);
1563 }
avrcp_controller_enter(uint16_t avrcp_cid)1564 uint8_t avrcp_controller_enter(uint16_t avrcp_cid){
1565 return request_single_pass_through_press_control_cmd(avrcp_cid, AVRCP_OPERATION_ID_ENTER, 0);
1566 }
avrcp_controller_clear(uint16_t avrcp_cid)1567 uint8_t avrcp_controller_clear(uint16_t avrcp_cid){
1568 return request_single_pass_through_press_control_cmd(avrcp_cid, AVRCP_OPERATION_ID_CLEAR, 0);
1569 }
avrcp_controller_channel_up(uint16_t avrcp_cid)1570 uint8_t avrcp_controller_channel_up(uint16_t avrcp_cid){
1571 return request_single_pass_through_press_control_cmd(avrcp_cid, AVRCP_OPERATION_ID_CHANNEL_UP, 0);
1572 }
avrcp_controller_channel_down(uint16_t avrcp_cid)1573 uint8_t avrcp_controller_channel_down(uint16_t avrcp_cid){
1574 return request_single_pass_through_press_control_cmd(avrcp_cid, AVRCP_OPERATION_ID_CHANNEL_DOWN, 0);
1575 }
avrcp_controller_previous_channel(uint16_t avrcp_cid)1576 uint8_t avrcp_controller_previous_channel(uint16_t avrcp_cid){
1577 return request_single_pass_through_press_control_cmd(avrcp_cid, AVRCP_OPERATION_ID_PREVIOUS_CHANNEL, 0);
1578 }
avrcp_controller_sound_select(uint16_t avrcp_cid)1579 uint8_t avrcp_controller_sound_select(uint16_t avrcp_cid){
1580 return request_single_pass_through_press_control_cmd(avrcp_cid, AVRCP_OPERATION_ID_SOUND_SELECT, 0);
1581 }
avrcp_controller_input_select(uint16_t avrcp_cid)1582 uint8_t avrcp_controller_input_select(uint16_t avrcp_cid){
1583 return request_single_pass_through_press_control_cmd(avrcp_cid, AVRCP_OPERATION_ID_INPUT_SELECT, 0);
1584 }
avrcp_controller_display_information(uint16_t avrcp_cid)1585 uint8_t avrcp_controller_display_information(uint16_t avrcp_cid){
1586 return request_single_pass_through_press_control_cmd(avrcp_cid, AVRCP_OPERATION_ID_DISPLAY_INFORMATION, 0);
1587 }
avrcp_controller_help(uint16_t avrcp_cid)1588 uint8_t avrcp_controller_help(uint16_t avrcp_cid){
1589 return request_single_pass_through_press_control_cmd(avrcp_cid, AVRCP_OPERATION_ID_HELP, 0);
1590 }
avrcp_controller_power(uint16_t avrcp_cid)1591 uint8_t avrcp_controller_power(uint16_t avrcp_cid){
1592 return request_single_pass_through_press_control_cmd(avrcp_cid, AVRCP_OPERATION_ID_POWER, 0);
1593 }
avrcp_controller_angle(uint16_t avrcp_cid)1594 uint8_t avrcp_controller_angle(uint16_t avrcp_cid){
1595 return request_single_pass_through_press_control_cmd(avrcp_cid, AVRCP_OPERATION_ID_ANGLE, 0);
1596 }
avrcp_controller_subpicture(uint16_t avrcp_cid)1597 uint8_t avrcp_controller_subpicture(uint16_t avrcp_cid){
1598 return request_single_pass_through_press_control_cmd(avrcp_cid, AVRCP_OPERATION_ID_SUBPICTURE, 0);
1599 }
avrcp_controller_F1(uint16_t avrcp_cid)1600 uint8_t avrcp_controller_F1(uint16_t avrcp_cid){
1601 return request_single_pass_through_press_control_cmd(avrcp_cid, AVRCP_OPERATION_ID_F1, 0);
1602 }
avrcp_controller_F2(uint16_t avrcp_cid)1603 uint8_t avrcp_controller_F2(uint16_t avrcp_cid){
1604 return request_single_pass_through_press_control_cmd(avrcp_cid, AVRCP_OPERATION_ID_F2, 0);
1605 }
avrcp_controller_F3(uint16_t avrcp_cid)1606 uint8_t avrcp_controller_F3(uint16_t avrcp_cid){
1607 return request_single_pass_through_press_control_cmd(avrcp_cid, AVRCP_OPERATION_ID_F3, 0);
1608 }
avrcp_controller_F4(uint16_t avrcp_cid)1609 uint8_t avrcp_controller_F4(uint16_t avrcp_cid){
1610 return request_single_pass_through_press_control_cmd(avrcp_cid, AVRCP_OPERATION_ID_F4, 0);
1611 }
avrcp_controller_F5(uint16_t avrcp_cid)1612 uint8_t avrcp_controller_F5(uint16_t avrcp_cid){
1613 return request_single_pass_through_press_control_cmd(avrcp_cid, AVRCP_OPERATION_ID_F5, 0);
1614 }
1615
avrcp_controller_select(uint16_t avrcp_cid)1616 uint8_t avrcp_controller_select(uint16_t avrcp_cid){
1617 return request_single_pass_through_press_control_cmd(avrcp_cid, AVRCP_OPERATION_ID_SELECT, 0);
1618 }
avrcp_controller_up(uint16_t avrcp_cid)1619 uint8_t avrcp_controller_up(uint16_t avrcp_cid){
1620 return request_single_pass_through_press_control_cmd(avrcp_cid, AVRCP_OPERATION_ID_UP, 0);
1621 }
avrcp_controller_down(uint16_t avrcp_cid)1622 uint8_t avrcp_controller_down(uint16_t avrcp_cid){
1623 return request_single_pass_through_press_control_cmd(avrcp_cid, AVRCP_OPERATION_ID_DOWN, 0);
1624 }
avrcp_controller_left(uint16_t avrcp_cid)1625 uint8_t avrcp_controller_left(uint16_t avrcp_cid){
1626 return request_single_pass_through_press_control_cmd(avrcp_cid, AVRCP_OPERATION_ID_LEFT, 0);
1627 }
avrcp_controller_right(uint16_t avrcp_cid)1628 uint8_t avrcp_controller_right(uint16_t avrcp_cid){
1629 return request_single_pass_through_press_control_cmd(avrcp_cid, AVRCP_OPERATION_ID_RIGHT, 0);
1630 }
avrcp_controller_right_up(uint16_t avrcp_cid)1631 uint8_t avrcp_controller_right_up(uint16_t avrcp_cid){
1632 return request_single_pass_through_press_control_cmd(avrcp_cid, AVRCP_OPERATION_ID_RIGHT_UP, 0);
1633 }
avrcp_controller_right_down(uint16_t avrcp_cid)1634 uint8_t avrcp_controller_right_down(uint16_t avrcp_cid){
1635 return request_single_pass_through_press_control_cmd(avrcp_cid, AVRCP_OPERATION_ID_RIGHT_DOWN, 0);
1636 }
avrcp_controller_left_up(uint16_t avrcp_cid)1637 uint8_t avrcp_controller_left_up(uint16_t avrcp_cid){
1638 return request_single_pass_through_press_control_cmd(avrcp_cid, AVRCP_OPERATION_ID_LEFT_UP, 0);
1639 }
avrcp_controller_left_down(uint16_t avrcp_cid)1640 uint8_t avrcp_controller_left_down(uint16_t avrcp_cid){
1641 return request_single_pass_through_press_control_cmd(avrcp_cid, AVRCP_OPERATION_ID_LEFT_DOWN, 0);
1642 }
avrcp_controller_root_menu(uint16_t avrcp_cid)1643 uint8_t avrcp_controller_root_menu(uint16_t avrcp_cid){
1644 return request_single_pass_through_press_control_cmd(avrcp_cid, AVRCP_OPERATION_ID_ROOT_MENU, 0);
1645 }
avrcp_controller_setup_menu(uint16_t avrcp_cid)1646 uint8_t avrcp_controller_setup_menu(uint16_t avrcp_cid){
1647 return request_single_pass_through_press_control_cmd(avrcp_cid, AVRCP_OPERATION_ID_SETUP_MENU, 0);
1648 }
avrcp_controller_contents_menu(uint16_t avrcp_cid)1649 uint8_t avrcp_controller_contents_menu(uint16_t avrcp_cid){
1650 return request_single_pass_through_press_control_cmd(avrcp_cid, AVRCP_OPERATION_ID_CONTENTS_MENU, 0);
1651 }
avrcp_controller_favorite_menu(uint16_t avrcp_cid)1652 uint8_t avrcp_controller_favorite_menu(uint16_t avrcp_cid){
1653 return request_single_pass_through_press_control_cmd(avrcp_cid, AVRCP_OPERATION_ID_FAVORITE_MENU, 0);
1654 }
avrcp_controller_exit(uint16_t avrcp_cid)1655 uint8_t avrcp_controller_exit(uint16_t avrcp_cid){
1656 return request_single_pass_through_press_control_cmd(avrcp_cid, AVRCP_OPERATION_ID_EXIT, 0);
1657 }
avrcp_controller_page_up(uint16_t avrcp_cid)1658 uint8_t avrcp_controller_page_up(uint16_t avrcp_cid){
1659 return request_single_pass_through_press_control_cmd(avrcp_cid, AVRCP_OPERATION_ID_PAGE_UP, 0);
1660 }
avrcp_controller_page_down(uint16_t avrcp_cid)1661 uint8_t avrcp_controller_page_down(uint16_t avrcp_cid){
1662 return request_single_pass_through_press_control_cmd(avrcp_cid, AVRCP_OPERATION_ID_PAGE_DOWN, 0);
1663 }
1664
avrcp_controller_request_group_pass_through_press_control_cmd(uint16_t avrcp_cid,avrcp_group_operation_id_t opid)1665 static uint8_t avrcp_controller_request_group_pass_through_press_control_cmd(uint16_t avrcp_cid, avrcp_group_operation_id_t opid){
1666 log_info("Send group command %d", opid);
1667 avrcp_connection_t * connection = avrcp_get_connection_for_avrcp_cid_for_role(AVRCP_CONTROLLER, avrcp_cid);
1668 if (!connection){
1669 return ERROR_CODE_UNKNOWN_CONNECTION_IDENTIFIER;
1670 }
1671
1672 if (connection->state != AVCTP_CONNECTION_OPENED){
1673 log_error("Connection in wrong state %d, expected %d. avrcp cid 0x%02x", connection->state, AVCTP_CONNECTION_OPENED, avrcp_cid);
1674 return ERROR_CODE_COMMAND_DISALLOWED;
1675 }
1676 connection->state = AVCTP_W2_SEND_PRESS_COMMAND;
1677 avrcp_controller_pass_through_command_data_init(connection, AVRCP_OPERATION_ID_VENDOR_UNIQUE);
1678 connection->company_id = BT_SIG_COMPANY_ID;
1679 connection->data_len = 5;
1680 big_endian_store_24(connection->data, 0, BT_SIG_COMPANY_ID);
1681 big_endian_store_16(connection->data, 3, opid);
1682
1683 avrcp_request_can_send_now(connection, connection->l2cap_signaling_cid);
1684 return ERROR_CODE_SUCCESS;
1685 }
1686
avrcp_controller_next_group(uint16_t avrcp_cid)1687 uint8_t avrcp_controller_next_group(uint16_t avrcp_cid){
1688 return avrcp_controller_request_group_pass_through_press_control_cmd(avrcp_cid, AVRCP_GROUP_OPERATION_ID_GOTO_NEXT);
1689 }
1690
avrcp_controller_previous_group(uint16_t avrcp_cid)1691 uint8_t avrcp_controller_previous_group(uint16_t avrcp_cid){
1692 return avrcp_controller_request_group_pass_through_press_control_cmd(avrcp_cid, AVRCP_GROUP_OPERATION_ID_GOTO_PREVIOUS);
1693 }
1694
1695
1696 /* stop continuous cmds */
avrcp_controller_release_press_and_hold_cmd(uint16_t avrcp_cid)1697 uint8_t avrcp_controller_release_press_and_hold_cmd(uint16_t avrcp_cid){
1698 avrcp_connection_t * connection = avrcp_get_connection_for_avrcp_cid_for_role(AVRCP_CONTROLLER, avrcp_cid);
1699 if (!connection){
1700 return ERROR_CODE_UNKNOWN_CONNECTION_IDENTIFIER;
1701 }
1702
1703 switch (connection->state){
1704 // respond when we receive response for (repeated) press command
1705 case AVCTP_W2_RECEIVE_PRESS_RESPONSE:
1706 connection->controller_press_and_hold_cmd_release = true;
1707 break;
1708
1709 // release already sent or on the way, nothing to do
1710 case AVCTP_W2_RECEIVE_RESPONSE:
1711 case AVCTP_W2_SEND_RELEASE_COMMAND:
1712 break;
1713
1714 // about to send next repeated press command or wait for it -> release right away
1715 case AVCTP_W2_SEND_PRESS_COMMAND:
1716 case AVCTP_W4_STOP:
1717 return avrcp_controller_request_pass_through_release_control_cmd(connection);
1718
1719 // otherwise reject request
1720 default:
1721 return ERROR_CODE_COMMAND_DISALLOWED;
1722 }
1723 return ERROR_CODE_SUCCESS;
1724 }
1725
avrcp_controller_enable_notification(uint16_t avrcp_cid,avrcp_notification_event_id_t event_id)1726 uint8_t avrcp_controller_enable_notification(uint16_t avrcp_cid, avrcp_notification_event_id_t event_id){
1727 avrcp_connection_t * connection = avrcp_get_connection_for_avrcp_cid_for_role(AVRCP_CONTROLLER, avrcp_cid);
1728 if (!connection){
1729 return ERROR_CODE_UNKNOWN_CONNECTION_IDENTIFIER;
1730 }
1731 return avrcp_controller_register_notification(connection, event_id);
1732 }
1733
avrcp_controller_disable_notification(uint16_t avrcp_cid,avrcp_notification_event_id_t event_id)1734 uint8_t avrcp_controller_disable_notification(uint16_t avrcp_cid, avrcp_notification_event_id_t event_id){
1735 avrcp_connection_t * connection = avrcp_get_connection_for_avrcp_cid_for_role(AVRCP_CONTROLLER, avrcp_cid);
1736 if (!connection){
1737 return ERROR_CODE_UNKNOWN_CONNECTION_IDENTIFIER;
1738 }
1739 if (connection->remote_capabilities_state != AVRCP_REMOTE_CAPABILITIES_KNOWN){
1740 return ERROR_CODE_COMMAND_DISALLOWED;
1741 }
1742
1743 if ((connection->notifications_supported_by_target & (1 << event_id)) == 0){
1744 return ERROR_CODE_UNSUPPORTED_FEATURE_OR_PARAMETER_VALUE;
1745 }
1746
1747 if ((connection->notifications_enabled & (1 << event_id)) == 0){
1748 return ERROR_CODE_SUCCESS;
1749 }
1750
1751 connection->controller_notifications_to_deregister |= (1 << event_id);
1752 return ERROR_CODE_SUCCESS;
1753 }
1754
avrcp_controller_unit_info(uint16_t avrcp_cid)1755 uint8_t avrcp_controller_unit_info(uint16_t avrcp_cid){
1756 avrcp_connection_t * connection = avrcp_get_connection_for_avrcp_cid_for_role(AVRCP_CONTROLLER, avrcp_cid);
1757 if (!connection){
1758 return ERROR_CODE_UNKNOWN_CONNECTION_IDENTIFIER;
1759 }
1760 if (connection->state != AVCTP_CONNECTION_OPENED) return ERROR_CODE_COMMAND_DISALLOWED;
1761
1762 connection->state = AVCTP_W2_SEND_COMMAND;
1763 avrcp_controller_custom_command_data_init(connection, AVRCP_CMD_OPCODE_UNIT_INFO, AVRCP_CTYPE_STATUS,
1764 AVRCP_SUBUNIT_TYPE_UNIT, AVRCP_SUBUNIT_ID_IGNORE, AVRCP_PDU_ID_UNDEFINED,
1765 0);
1766
1767 connection->data = connection->message_body;
1768 memset(connection->data, 0xFF, 5);
1769 connection->data_len = 5;
1770 avrcp_request_can_send_now(connection, connection->l2cap_signaling_cid);
1771 return ERROR_CODE_SUCCESS;
1772 }
1773
avrcp_controller_subunit_info(uint16_t avrcp_cid)1774 uint8_t avrcp_controller_subunit_info(uint16_t avrcp_cid){
1775 avrcp_connection_t * connection = avrcp_get_connection_for_avrcp_cid_for_role(AVRCP_CONTROLLER, avrcp_cid);
1776 if (!connection){
1777 return ERROR_CODE_UNKNOWN_CONNECTION_IDENTIFIER;
1778 }
1779 if (connection->state != AVCTP_CONNECTION_OPENED) return ERROR_CODE_COMMAND_DISALLOWED;
1780
1781 connection->state = AVCTP_W2_SEND_COMMAND;
1782 avrcp_controller_custom_command_data_init(connection, AVRCP_CMD_OPCODE_SUBUNIT_INFO, AVRCP_CTYPE_STATUS,
1783 AVRCP_SUBUNIT_TYPE_UNIT, AVRCP_SUBUNIT_ID_IGNORE, AVRCP_PDU_ID_UNDEFINED,
1784 0);
1785
1786 connection->data = connection->message_body;
1787 memset(connection->data, 0xFF, 5);
1788 connection->data[0] = 7; // page: 0, extension_code: 7
1789 connection->data_len = 5;
1790 avrcp_request_can_send_now(connection, connection->l2cap_signaling_cid);
1791 return ERROR_CODE_SUCCESS;
1792 }
1793
avrcp_controller_get_supported_company_ids(uint16_t avrcp_cid)1794 uint8_t avrcp_controller_get_supported_company_ids(uint16_t avrcp_cid){
1795 avrcp_connection_t * connection = avrcp_get_connection_for_avrcp_cid_for_role(AVRCP_CONTROLLER, avrcp_cid);
1796 if (!connection){
1797 return ERROR_CODE_UNKNOWN_CONNECTION_IDENTIFIER;
1798 }
1799 if (connection->state != AVCTP_CONNECTION_OPENED){
1800 return ERROR_CODE_COMMAND_DISALLOWED;
1801 }
1802 avrcp_controller_get_capabilities_for_connection(connection, AVRCP_CAPABILITY_ID_COMPANY);
1803 return ERROR_CODE_SUCCESS;
1804 }
1805
avrcp_controller_get_supported_events(uint16_t avrcp_cid)1806 uint8_t avrcp_controller_get_supported_events(uint16_t avrcp_cid){
1807 avrcp_connection_t * connection = avrcp_get_connection_for_avrcp_cid_for_role(AVRCP_CONTROLLER, avrcp_cid);
1808 if (!connection){
1809 return ERROR_CODE_UNKNOWN_CONNECTION_IDENTIFIER;
1810 }
1811 if (connection->state != AVCTP_CONNECTION_OPENED){
1812 return ERROR_CODE_COMMAND_DISALLOWED;
1813 }
1814
1815 switch (connection->remote_capabilities_state){
1816 case AVRCP_REMOTE_CAPABILITIES_NONE:
1817 connection->remote_capabilities_state = AVRCP_REMOTE_CAPABILITIES_W4_QUERY_RESULT;
1818 avrcp_controller_get_capabilities_for_connection(connection, AVRCP_CAPABILITY_ID_EVENT);
1819 break;
1820 case AVRCP_REMOTE_CAPABILITIES_KNOWN:
1821 avrcp_controller_emit_supported_events(connection);
1822 break;
1823 default:
1824 break;
1825 }
1826 return ERROR_CODE_SUCCESS;
1827 }
1828
avrcp_controller_get_play_status(uint16_t avrcp_cid)1829 uint8_t avrcp_controller_get_play_status(uint16_t avrcp_cid){
1830 avrcp_connection_t * connection = avrcp_get_connection_for_avrcp_cid_for_role(AVRCP_CONTROLLER, avrcp_cid);
1831 if (!connection){
1832 return ERROR_CODE_UNKNOWN_CONNECTION_IDENTIFIER;
1833 }
1834 if (connection->state != AVCTP_CONNECTION_OPENED) return ERROR_CODE_COMMAND_DISALLOWED;
1835
1836 connection->state = AVCTP_W2_SEND_COMMAND;
1837 avrcp_controller_vendor_dependent_command_data_init(connection, AVRCP_CTYPE_STATUS, AVRCP_PDU_ID_GET_PLAY_STATUS, true);
1838
1839 connection->data_len = 0;
1840 avrcp_request_can_send_now(connection, connection->l2cap_signaling_cid);
1841 return ERROR_CODE_SUCCESS;
1842 }
1843
avrcp_controller_set_addressed_player(uint16_t avrcp_cid,uint16_t addressed_player_id)1844 uint8_t avrcp_controller_set_addressed_player(uint16_t avrcp_cid, uint16_t addressed_player_id){
1845 avrcp_connection_t * connection = avrcp_get_connection_for_avrcp_cid_for_role(AVRCP_CONTROLLER, avrcp_cid);
1846 if (!connection){
1847 return ERROR_CODE_UNKNOWN_CONNECTION_IDENTIFIER;
1848 }
1849 if (connection->state != AVCTP_CONNECTION_OPENED) return ERROR_CODE_COMMAND_DISALLOWED;
1850
1851 connection->state = AVCTP_W2_SEND_COMMAND;
1852 avrcp_controller_vendor_dependent_command_data_init(connection, AVRCP_CTYPE_CONTROL, AVRCP_PDU_ID_SET_ADDRESSED_PLAYER, true);
1853
1854 connection->data_len = 2;
1855 big_endian_store_16(connection->data, 0, addressed_player_id);
1856
1857 avrcp_request_can_send_now(connection, connection->l2cap_signaling_cid);
1858 return ERROR_CODE_SUCCESS;
1859 }
1860
avrcp_controller_get_element_attributes(uint16_t avrcp_cid,uint8_t num_attributes,avrcp_media_attribute_id_t * attributes)1861 uint8_t avrcp_controller_get_element_attributes(uint16_t avrcp_cid, uint8_t num_attributes, avrcp_media_attribute_id_t * attributes){
1862 avrcp_connection_t * connection = avrcp_get_connection_for_avrcp_cid_for_role(AVRCP_CONTROLLER, avrcp_cid);
1863 if (!connection){
1864 return ERROR_CODE_UNKNOWN_CONNECTION_IDENTIFIER;
1865 }
1866
1867 if (connection->state != AVCTP_CONNECTION_OPENED) return ERROR_CODE_COMMAND_DISALLOWED;
1868
1869 if (num_attributes >= AVRCP_MEDIA_ATTR_NUM) {
1870 return ERROR_CODE_INVALID_HCI_COMMAND_PARAMETERS;
1871 }
1872
1873 connection->state = AVCTP_W2_SEND_GET_ELEMENT_ATTRIBUTES_REQUEST;
1874 avrcp_controller_vendor_dependent_command_data_init(connection, AVRCP_CTYPE_STATUS, AVRCP_PDU_ID_GET_ELEMENT_ATTRIBUTES, true);
1875
1876 // collect element attributes
1877 uint8_t i;
1878 uint16_t attributes_set = 0;
1879 for (i = 0; i < num_attributes; i++){
1880 // ignore invalid attribute ID and "get all attributes"
1881 if (AVRCP_MEDIA_ATTR_ALL < attributes[i] && attributes[i] < AVRCP_MEDIA_ATTR_NUM){
1882 attributes_set |= 1 << (attributes[i] - AVRCP_MEDIA_ATTR_TITLE);
1883 }
1884 }
1885 connection->controller_element_attributes = attributes_set;
1886
1887 avrcp_request_can_send_now(connection, connection->l2cap_signaling_cid);
1888 return ERROR_CODE_SUCCESS;
1889 }
1890
avrcp_controller_get_now_playing_info(uint16_t avrcp_cid)1891 uint8_t avrcp_controller_get_now_playing_info(uint16_t avrcp_cid){
1892 return avrcp_controller_get_element_attributes(avrcp_cid, 0, NULL);
1893 }
1894
avrcp_controller_get_now_playing_info_for_media_attribute_id(uint16_t avrcp_cid,avrcp_media_attribute_id_t media_attribute_id)1895 uint8_t avrcp_controller_get_now_playing_info_for_media_attribute_id(uint16_t avrcp_cid, avrcp_media_attribute_id_t media_attribute_id){
1896 if (media_attribute_id == AVRCP_MEDIA_ATTR_ALL){
1897 return avrcp_controller_get_now_playing_info(avrcp_cid);
1898 }
1899 avrcp_media_attribute_id_t media_attrs[1];
1900 media_attrs[0] = media_attribute_id;
1901 return avrcp_controller_get_element_attributes(avrcp_cid, 1, media_attrs);
1902 }
1903
avrcp_controller_set_absolute_volume(uint16_t avrcp_cid,uint8_t volume)1904 uint8_t avrcp_controller_set_absolute_volume(uint16_t avrcp_cid, uint8_t volume){
1905 avrcp_connection_t * connection = avrcp_get_connection_for_avrcp_cid_for_role(AVRCP_CONTROLLER, avrcp_cid);
1906 if (!connection){
1907 return ERROR_CODE_UNKNOWN_CONNECTION_IDENTIFIER;
1908 }
1909
1910 //
1911 // allow sending of multiple set abs volume commands without waiting for response
1912 //
1913 uint8_t status = ERROR_CODE_COMMAND_DISALLOWED;
1914 switch (connection->state){
1915 case AVCTP_CONNECTION_OPENED:
1916 status = ERROR_CODE_SUCCESS;
1917 break;
1918 case AVCTP_W2_RECEIVE_RESPONSE:
1919 // - is pending response also set abs volume
1920 if (connection->command_opcode != AVRCP_CMD_OPCODE_VENDOR_DEPENDENT) break;
1921 if (connection->command_type != AVRCP_CTYPE_CONTROL) break;
1922 if (connection->subunit_type != AVRCP_SUBUNIT_TYPE_PANEL) break;
1923 if (connection->subunit_id != AVRCP_SUBUNIT_ID) break;
1924 if (connection->pdu_id != AVRCP_PDU_ID_SET_ABSOLUTE_VOLUME) break;
1925 // - is next transaction id valid in window
1926 if (avrcp_controller_is_transaction_id_valid(connection, avrcp_controller_calc_next_transaction_label(connection->transaction_id_counter)) == false) break;
1927 status = ERROR_CODE_SUCCESS;
1928 break;
1929 default:
1930 break;
1931 }
1932 if (status != ERROR_CODE_SUCCESS) return status;
1933
1934 connection->state = AVCTP_W2_SEND_COMMAND;
1935 avrcp_controller_vendor_dependent_command_data_init(connection, AVRCP_CTYPE_CONTROL, AVRCP_PDU_ID_SET_ABSOLUTE_VOLUME, true);
1936
1937 // Parameter Length
1938 connection->data_len = 1;
1939 connection->data[0] = volume;
1940
1941 avrcp_request_can_send_now(connection, connection->l2cap_signaling_cid);
1942 return ERROR_CODE_SUCCESS;
1943 }
1944
avrcp_controller_query_player_application_setting_attributes(uint16_t avrcp_cid)1945 uint8_t avrcp_controller_query_player_application_setting_attributes(uint16_t avrcp_cid){
1946 avrcp_connection_t * connection = avrcp_get_connection_for_avrcp_cid_for_role(AVRCP_CONTROLLER, avrcp_cid);
1947 if (!connection){
1948 return ERROR_CODE_UNKNOWN_CONNECTION_IDENTIFIER;
1949 }
1950 if (connection->state != AVCTP_CONNECTION_OPENED) return ERROR_CODE_COMMAND_DISALLOWED;
1951
1952 connection->state = AVCTP_W2_SEND_COMMAND;
1953 avrcp_controller_vendor_dependent_command_data_init(connection, AVRCP_CTYPE_STATUS, AVRCP_PDU_ID_LIST_PLAYER_APPLICATION_SETTING_ATTRIBUTES, true);
1954
1955 connection->data_len = 0;
1956
1957 avrcp_request_can_send_now(connection, connection->l2cap_signaling_cid);
1958 return ERROR_CODE_SUCCESS;
1959 }
1960
avrcp_controller_query_player_application_setting_values(uint16_t avrcp_cid,avrcp_player_application_setting_attribute_id_t attribute_id)1961 uint8_t avrcp_controller_query_player_application_setting_values(uint16_t avrcp_cid, avrcp_player_application_setting_attribute_id_t attribute_id){
1962 avrcp_connection_t * connection = avrcp_get_connection_for_avrcp_cid_for_role(AVRCP_CONTROLLER, avrcp_cid);
1963 if (!connection){
1964 return ERROR_CODE_UNKNOWN_CONNECTION_IDENTIFIER;
1965 }
1966 if (connection->state != AVCTP_CONNECTION_OPENED) return ERROR_CODE_COMMAND_DISALLOWED;
1967
1968 connection->state = AVCTP_W2_SEND_COMMAND;
1969 avrcp_controller_vendor_dependent_command_data_init(connection, AVRCP_CTYPE_STATUS, AVRCP_PDU_ID_LIST_PLAYER_APPLICATION_SETTING_VALUES, true);
1970
1971 connection->data_len = 1;
1972 connection->data[0] = attribute_id;
1973
1974 avrcp_request_can_send_now(connection, connection->l2cap_signaling_cid);
1975 return ERROR_CODE_SUCCESS;
1976 }
1977
avrcp_controller_query_shuffle_and_repeat_modes(uint16_t avrcp_cid)1978 uint8_t avrcp_controller_query_shuffle_and_repeat_modes(uint16_t avrcp_cid){
1979 avrcp_connection_t * connection = avrcp_get_connection_for_avrcp_cid_for_role(AVRCP_CONTROLLER, avrcp_cid);
1980 if (!connection){
1981 return ERROR_CODE_UNKNOWN_CONNECTION_IDENTIFIER;
1982 }
1983 if (connection->state != AVCTP_CONNECTION_OPENED) return ERROR_CODE_COMMAND_DISALLOWED;
1984
1985 connection->state = AVCTP_W2_SEND_COMMAND;
1986 avrcp_controller_vendor_dependent_command_data_init(connection, AVRCP_CTYPE_STATUS, AVRCP_PDU_ID_GET_CURRENT_PLAYER_APPLICATION_SETTING_VALUE, true);
1987
1988 connection->data_len = 5;
1989 connection->data[0] = 4; // NumPlayerApplicationSettingAttributeID
1990 // PlayerApplicationSettingAttributeID1 AVRCP Spec, Appendix F, 133
1991 connection->data[1] = 0x01; // equalizer (1-OFF, 2-ON)
1992 connection->data[2] = 0x02; // repeat (1-off, 2-single track, 3-all tracks, 4-group repeat)
1993 connection->data[3] = 0x03; // shuffle (1-off, 2-all tracks, 3-group shuffle)
1994 connection->data[4] = 0x04; // scan (1-off, 2-all tracks, 3-group scan)
1995
1996 avrcp_request_can_send_now(connection, connection->l2cap_signaling_cid);
1997 return ERROR_CODE_SUCCESS;
1998 }
1999
avrcp_controller_set_current_player_application_setting_value(uint16_t avrcp_cid,uint8_t attr_id,uint8_t attr_value)2000 static uint8_t avrcp_controller_set_current_player_application_setting_value(uint16_t avrcp_cid, uint8_t attr_id, uint8_t attr_value){
2001 avrcp_connection_t * connection = avrcp_get_connection_for_avrcp_cid_for_role(AVRCP_CONTROLLER, avrcp_cid);
2002 if (!connection){
2003 return ERROR_CODE_UNKNOWN_CONNECTION_IDENTIFIER;
2004 }
2005 if (connection->state != AVCTP_CONNECTION_OPENED) return ERROR_CODE_COMMAND_DISALLOWED;
2006
2007 connection->state = AVCTP_W2_SEND_COMMAND;
2008 avrcp_controller_vendor_dependent_command_data_init(connection, AVRCP_CTYPE_CONTROL, AVRCP_PDU_ID_SET_PLAYER_APPLICATION_SETTING_VALUE, true);
2009
2010 // Parameter Length
2011 connection->data_len = 3;
2012 connection->data[0] = 2;
2013 connection->data[1] = attr_id;
2014 connection->data[2] = attr_value;
2015
2016 avrcp_request_can_send_now(connection, connection->l2cap_signaling_cid);
2017 return ERROR_CODE_SUCCESS;
2018 }
2019
avrcp_controller_query_player_application_setting_attribute_text(uint16_t avrcp_cid)2020 uint8_t avrcp_controller_query_player_application_setting_attribute_text(uint16_t avrcp_cid){
2021 avrcp_connection_t * connection = avrcp_get_connection_for_avrcp_cid_for_role(AVRCP_CONTROLLER, avrcp_cid);
2022 if (!connection){
2023 return ERROR_CODE_UNKNOWN_CONNECTION_IDENTIFIER;
2024 }
2025 if (connection->state != AVCTP_CONNECTION_OPENED) return ERROR_CODE_COMMAND_DISALLOWED;
2026
2027 connection->state = AVCTP_W2_SEND_COMMAND;
2028 avrcp_controller_vendor_dependent_command_data_init(connection, AVRCP_CTYPE_STATUS, AVRCP_PDU_ID_GET_PLAYER_APPLICATION_SETTING_ATTRIBUTE_TEXT, true);
2029
2030 connection->data_len = 5;
2031 connection->data[0] = 4; // NumPlayerApplicationSettingAttributeID
2032 // PlayerApplicationSettingAttributeID1 AVRCP Spec, Appendix F, 133
2033 connection->data[1] = 0x01; // equalizer (1-OFF, 2-ON)
2034 connection->data[2] = 0x02; // repeat (1-off, 2-single track, 3-all tracks, 4-group repeat)
2035 connection->data[3] = 0x03; // shuffle (1-off, 2-all tracks, 3-group shuffle)
2036 connection->data[4] = 0x04; // scan (1-off, 2-all tracks, 3-group scan)
2037
2038 avrcp_request_can_send_now(connection, connection->l2cap_signaling_cid);
2039 return ERROR_CODE_SUCCESS;
2040 }
2041
avrcp_controller_query_player_application_setting_value_text(uint16_t avrcp_cid)2042 uint8_t avrcp_controller_query_player_application_setting_value_text(uint16_t avrcp_cid){
2043 avrcp_connection_t * connection = avrcp_get_connection_for_avrcp_cid_for_role(AVRCP_CONTROLLER, avrcp_cid);
2044 if (!connection){
2045 return ERROR_CODE_UNKNOWN_CONNECTION_IDENTIFIER;
2046 }
2047 if (connection->state != AVCTP_CONNECTION_OPENED) return ERROR_CODE_COMMAND_DISALLOWED;
2048
2049 connection->state = AVCTP_W2_SEND_COMMAND;
2050 avrcp_controller_vendor_dependent_command_data_init(connection, AVRCP_CTYPE_STATUS, AVRCP_PDU_ID_GET_PLAYER_APPLICATION_SETTING_VALUE_TEXT, true);
2051
2052 connection->data_len = 5;
2053 connection->data[0] = 4; // NumPlayerApplicationSettingAttributeID
2054 // PlayerApplicationSettingAttributeID1 AVRCP Spec, Appendix F, 133
2055 connection->data[1] = 0x01; // equalizer (1-OFF, 2-ON)
2056 connection->data[2] = 0x02; // repeat (1-off, 2-single track, 3-all tracks, 4-group repeat)
2057 connection->data[3] = 0x03; // shuffle (1-off, 2-all tracks, 3-group shuffle)
2058 connection->data[4] = 0x04; // scan (1-off, 2-all tracks, 3-group scan)
2059
2060 avrcp_request_can_send_now(connection, connection->l2cap_signaling_cid);
2061 return ERROR_CODE_SUCCESS;
2062 }
2063
avrcp_controller_inform_displayable_characterset(uint16_t avrcp_cid,uint8_t character_set_num,uint16_t * character_set)2064 uint8_t avrcp_controller_inform_displayable_characterset(uint16_t avrcp_cid, uint8_t character_set_num, uint16_t * character_set){
2065 btstack_assert(character_set_num > 4);
2066
2067 avrcp_connection_t * connection = avrcp_get_connection_for_avrcp_cid_for_role(AVRCP_CONTROLLER, avrcp_cid);
2068 if (!connection){
2069 return ERROR_CODE_UNKNOWN_CONNECTION_IDENTIFIER;
2070 }
2071 if (connection->state != AVCTP_CONNECTION_OPENED) return ERROR_CODE_COMMAND_DISALLOWED;
2072
2073 connection->state = AVCTP_W2_SEND_COMMAND;
2074 avrcp_controller_vendor_dependent_command_data_init(connection, AVRCP_CTYPE_CONTROL, AVRCP_PDU_ID_INFORM_DISPLAYABLE_CHARACTERSET, true);
2075
2076 // Parameter Length
2077 connection->data_len = character_set_num * 2;
2078 uint8_t pos = 0;
2079
2080 connection->data[pos++] = character_set_num;
2081 uint8_t i;
2082 for (i = 0; i < character_set_num; i++){
2083 little_endian_store_16(connection->data, pos, character_set[i]);
2084 pos += i * 2;
2085 }
2086
2087 avrcp_request_can_send_now(connection, connection->l2cap_signaling_cid);
2088 return ERROR_CODE_SUCCESS;
2089 }
2090
avrcp_controller_inform_battery_status(uint16_t avrcp_cid,avrcp_battery_status_t battery_status)2091 uint8_t avrcp_controller_inform_battery_status(uint16_t avrcp_cid, avrcp_battery_status_t battery_status){
2092 avrcp_connection_t * connection = avrcp_get_connection_for_avrcp_cid_for_role(AVRCP_CONTROLLER, avrcp_cid);
2093 if (!connection){
2094 return ERROR_CODE_UNKNOWN_CONNECTION_IDENTIFIER;
2095 }
2096 if (connection->state != AVCTP_CONNECTION_OPENED) return ERROR_CODE_COMMAND_DISALLOWED;
2097
2098 connection->state = AVCTP_W2_SEND_COMMAND;
2099 avrcp_controller_vendor_dependent_command_data_init(connection, AVRCP_CTYPE_CONTROL, AVRCP_PDU_ID_INFORM_BATTERY_STATUS_OF_CT, true);
2100
2101 // Parameter Length
2102 connection->data_len = 1;
2103 connection->data[0] = battery_status;
2104
2105 avrcp_request_can_send_now(connection, connection->l2cap_signaling_cid);
2106 return ERROR_CODE_SUCCESS;
2107 }
2108
avrcp_controller_set_shuffle_mode(uint16_t avrcp_cid,avrcp_shuffle_mode_t mode)2109 uint8_t avrcp_controller_set_shuffle_mode(uint16_t avrcp_cid, avrcp_shuffle_mode_t mode){
2110 if ((mode < AVRCP_SHUFFLE_MODE_OFF) || (mode > AVRCP_SHUFFLE_MODE_GROUP)) return ERROR_CODE_UNSUPPORTED_FEATURE_OR_PARAMETER_VALUE;
2111 return avrcp_controller_set_current_player_application_setting_value(avrcp_cid, 0x03, mode);
2112 }
2113
avrcp_controller_set_repeat_mode(uint16_t avrcp_cid,avrcp_repeat_mode_t mode)2114 uint8_t avrcp_controller_set_repeat_mode(uint16_t avrcp_cid, avrcp_repeat_mode_t mode){
2115 if ((mode < AVRCP_REPEAT_MODE_OFF) || (mode > AVRCP_REPEAT_MODE_GROUP)) return ERROR_CODE_UNSUPPORTED_FEATURE_OR_PARAMETER_VALUE;
2116 return avrcp_controller_set_current_player_application_setting_value(avrcp_cid, 0x02, mode);
2117 }
2118
avrcp_controller_play_item_for_scope(uint16_t avrcp_cid,uint8_t * uid,uint16_t uid_counter,avrcp_browsing_scope_t scope)2119 uint8_t avrcp_controller_play_item_for_scope(uint16_t avrcp_cid, uint8_t * uid, uint16_t uid_counter, avrcp_browsing_scope_t scope){
2120 avrcp_connection_t * connection = avrcp_get_connection_for_avrcp_cid_for_role(AVRCP_CONTROLLER, avrcp_cid);
2121 if (!connection){
2122 return ERROR_CODE_UNKNOWN_CONNECTION_IDENTIFIER;
2123 }
2124 if (connection->state != AVCTP_CONNECTION_OPENED){
2125 log_error("Connection in wrong state, expected %d, received %d", AVCTP_CONNECTION_OPENED, connection->state);
2126 return ERROR_CODE_COMMAND_DISALLOWED;
2127 }
2128 connection->state = AVCTP_W2_SEND_COMMAND;
2129 avrcp_controller_vendor_dependent_command_data_init(connection, AVRCP_CTYPE_CONTROL, AVRCP_PDU_ID_PLAY_ITEM, true);
2130
2131 // Parameter Length
2132 connection->data_len = 11;
2133 connection->data[0] = scope;
2134 memset(&connection->data[1], 0, 8);
2135 if (uid){
2136 (void)memcpy(&connection->data[1], uid, 8);
2137 }
2138 big_endian_store_16(connection->data, 9, uid_counter);
2139
2140 avrcp_request_can_send_now(connection, connection->l2cap_signaling_cid);
2141 return ERROR_CODE_SUCCESS;
2142 }
2143
avrcp_controller_add_item_from_scope_to_now_playing_list(uint16_t avrcp_cid,uint8_t * uid,uint16_t uid_counter,avrcp_browsing_scope_t scope)2144 uint8_t avrcp_controller_add_item_from_scope_to_now_playing_list(uint16_t avrcp_cid, uint8_t * uid, uint16_t uid_counter, avrcp_browsing_scope_t scope){
2145 avrcp_connection_t * connection = avrcp_get_connection_for_avrcp_cid_for_role(AVRCP_CONTROLLER, avrcp_cid);
2146 if (!connection){
2147 return ERROR_CODE_UNKNOWN_CONNECTION_IDENTIFIER;
2148 }
2149 if (connection->state != AVCTP_CONNECTION_OPENED){
2150 log_error("Connection in wrong state, expected %d, received %d", AVCTP_CONNECTION_OPENED, connection->state);
2151 return ERROR_CODE_COMMAND_DISALLOWED;
2152 }
2153
2154 connection->state = AVCTP_W2_SEND_COMMAND;
2155 avrcp_controller_vendor_dependent_command_data_init(connection, AVRCP_CTYPE_CONTROL, AVRCP_PDU_ID_ADD_TO_NOW_PLAYING, true);
2156
2157 // Parameter Length
2158 connection->data_len = 11;
2159 connection->data[0] = scope;
2160 memset(&connection->data[1], 0, 8);
2161 if (uid){
2162 (void)memcpy(&connection->data[1], uid, 8);
2163 }
2164 big_endian_store_16(connection->data, 9, uid_counter);
2165
2166 avrcp_request_can_send_now(connection, connection->l2cap_signaling_cid);
2167 return ERROR_CODE_SUCCESS;
2168 }
2169
avrcp_controller_set_max_num_fragments(uint16_t avrcp_cid,uint8_t max_num_fragments)2170 uint8_t avrcp_controller_set_max_num_fragments(uint16_t avrcp_cid, uint8_t max_num_fragments){
2171 avrcp_connection_t * connection = avrcp_get_connection_for_avrcp_cid_for_role(AVRCP_CONTROLLER, avrcp_cid);
2172 if (!connection){
2173 return ERROR_CODE_UNKNOWN_CONNECTION_IDENTIFIER;
2174 }
2175 connection->controller_max_num_fragments = max_num_fragments;
2176 return ERROR_CODE_SUCCESS;
2177 }
2178
2179
avrcp_controller_send_custom_command(uint16_t avrcp_cid,avrcp_command_type_t command_type,avrcp_subunit_type_t subunit_type,avrcp_subunit_id_t subunit_id,avrcp_pdu_id_t pdu_id,uint32_t company_id,const uint8_t * data,uint16_t data_len)2180 uint8_t avrcp_controller_send_custom_command(uint16_t avrcp_cid,
2181 avrcp_command_type_t command_type,
2182 avrcp_subunit_type_t subunit_type, avrcp_subunit_id_t subunit_id,
2183 avrcp_pdu_id_t pdu_id, uint32_t company_id,
2184 const uint8_t * data, uint16_t data_len){
2185
2186 avrcp_connection_t * connection = avrcp_get_connection_for_avrcp_cid_for_role(AVRCP_CONTROLLER, avrcp_cid);
2187 if (!connection){
2188 return ERROR_CODE_UNKNOWN_CONNECTION_IDENTIFIER;
2189 }
2190 if (connection->state != AVCTP_CONNECTION_OPENED) return ERROR_CODE_COMMAND_DISALLOWED;
2191
2192 connection->state = AVCTP_W2_SEND_COMMAND;
2193 avrcp_controller_custom_command_data_init(connection, AVRCP_CMD_OPCODE_VENDOR_DEPENDENT, command_type, subunit_type,
2194 subunit_id, pdu_id, company_id);
2195
2196 connection->data = (uint8_t *)data;
2197 connection->data_len = data_len;
2198
2199 avrcp_request_can_send_now(connection, connection->l2cap_signaling_cid);
2200 return ERROR_CODE_SUCCESS;
2201 }
2202
avrcp_controller_force_send_press_cmd(uint16_t avrcp_cid,avrcp_operation_id_t opid)2203 uint8_t avrcp_controller_force_send_press_cmd(uint16_t avrcp_cid, avrcp_operation_id_t opid){
2204 avrcp_connection_t * connection = avrcp_get_connection_for_avrcp_cid_for_role(AVRCP_CONTROLLER, avrcp_cid);
2205 if (!connection){
2206 return ERROR_CODE_UNKNOWN_CONNECTION_IDENTIFIER;
2207 }
2208 if (connection->state < AVCTP_CONNECTION_OPENED){
2209 return ERROR_CODE_COMMAND_DISALLOWED;
2210 }
2211
2212 connection->state = AVCTP_W2_SEND_COMMAND;
2213 avrcp_controller_pass_through_command_data_init(connection, opid);
2214 avrcp_request_can_send_now(connection, connection->l2cap_signaling_cid);
2215 return ERROR_CODE_SUCCESS;
2216 }