1 /******************************************************************************
3 * Copyright (C) 2009-2012 Broadcom Corporation
5 * Licensed under the Apache License, Version 2.0 (the "License");
6 * you may not use this file except in compliance with the License.
7 * You may obtain a copy of the License at:
9 * http://www.apache.org/licenses/LICENSE-2.0
11 * Unless required by applicable law or agreed to in writing, software
12 * distributed under the License is distributed on an "AS IS" BASIS,
13 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
14 * See the License for the specific language governing permissions and
15 * limitations under the License.
17 ******************************************************************************/
20 /*****************************************************************************
24 * Description: Bluetooth AVRC implementation
26 *****************************************************************************/
27 #include <hardware/bluetooth.h>
31 #include "bta_av_api.h"
32 #include "avrc_defs.h"
35 #define LOG_TAG "bt_btif_avrc"
36 #include "btif_common.h"
37 #include "btif_util.h"
39 #include "hardware/bt_rc.h"
42 /*****************************************************************************
44 ******************************************************************************/
46 /* cod value for Headsets */
47 #define COD_AV_HEADSETS 0x0404
48 /* for AVRC 1.4 need to change this */
49 #define MAX_RC_NOTIFICATIONS AVRC_EVT_APP_SETTING_CHANGE
51 #define IDX_GET_PLAY_STATUS_RSP 0
52 #define IDX_LIST_APP_ATTR_RSP 1
53 #define IDX_LIST_APP_VALUE_RSP 2
54 #define IDX_GET_CURR_APP_VAL_RSP 3
55 #define IDX_SET_APP_VAL_RSP 4
56 #define IDX_GET_APP_ATTR_TXT_RSP 5
57 #define IDX_GET_APP_VAL_TXT_RSP 6
58 #define IDX_GET_ELEMENT_ATTR_RSP 7
59 #define MAX_VOLUME 128
61 #define MAX_TRANSACTIONS_PER_SESSION 16
62 #define MAX_CMD_QUEUE_LEN 8
64 #define CHECK_RC_CONNECTED \
65 BTIF_TRACE_DEBUG("## %s ##", __FUNCTION__); \
66 if(btif_rc_cb.rc_connected == FALSE) \
68 BTIF_TRACE_WARNING("Function %s() called when RC is not connected", __FUNCTION__); \
69 return BT_STATUS_NOT_READY; \
72 #define FILL_PDU_QUEUE(index, ctype, label, pending) \
74 btif_rc_cb.rc_pdu_info[index].ctype = ctype; \
75 btif_rc_cb.rc_pdu_info[index].label = label; \
76 btif_rc_cb.rc_pdu_info[index].is_rsp_pending = pending; \
79 #define SEND_METAMSG_RSP(index, avrc_rsp) \
81 if(btif_rc_cb.rc_pdu_info[index].is_rsp_pending == FALSE) \
83 BTIF_TRACE_WARNING("%s Not sending response as no PDU was registered", __FUNCTION__); \
84 return BT_STATUS_UNHANDLED; \
86 send_metamsg_rsp(btif_rc_cb.rc_handle, btif_rc_cb.rc_pdu_info[index].label, \
87 btif_rc_cb.rc_pdu_info[index].ctype, avrc_rsp); \
88 btif_rc_cb.rc_pdu_info[index].ctype = 0; \
89 btif_rc_cb.rc_pdu_info[index].label = 0; \
90 btif_rc_cb.rc_pdu_info[index].is_rsp_pending = FALSE; \
93 /*****************************************************************************
94 ** Local type definitions
95 ******************************************************************************/
99 } btif_rc_reg_notifications_t;
105 BOOLEAN is_rsp_pending;
106 } btif_rc_cmd_ctxt_t;
108 /* TODO : Merge btif_rc_reg_notifications_t and btif_rc_cmd_ctxt_t to a single struct */
110 BOOLEAN rc_connected;
112 tBTA_AV_FEAT rc_features;
114 UINT16 rc_pending_play;
115 btif_rc_cmd_ctxt_t rc_pdu_info[MAX_CMD_QUEUE_LEN];
116 btif_rc_reg_notifications_t rc_notif[MAX_RC_NOTIFICATIONS];
117 unsigned int rc_volume;
118 uint8_t rc_vol_label;
129 pthread_mutex_t lbllock;
130 rc_transaction_t transaction[MAX_TRANSACTIONS_PER_SESSION];
136 #define MAX_UINPUT_PATHS 3
137 static const char* uinput_dev_path[] =
138 {"/dev/uinput", "/dev/input/uinput", "/dev/misc/uinput" };
139 static int uinput_fd = -1;
141 static int send_event (int fd, uint16_t type, uint16_t code, int32_t value);
142 static void send_key (int fd, uint16_t key, int pressed);
143 static int uinput_driver_check();
144 static int uinput_create(char *name);
145 static int init_uinput (void);
146 static void close_uinput (void);
147 static BOOLEAN dev_blacklisted_for_absolute_volume(BD_ADDR peer_dev);
149 static const struct {
153 uint8_t release_quirk;
155 { "PLAY", AVRC_ID_PLAY, KEY_PLAYCD, 1 },
156 { "STOP", AVRC_ID_STOP, KEY_STOPCD, 0 },
157 { "PAUSE", AVRC_ID_PAUSE, KEY_PAUSECD, 1 },
158 { "FORWARD", AVRC_ID_FORWARD, KEY_NEXTSONG, 0 },
159 { "BACKWARD", AVRC_ID_BACKWARD, KEY_PREVIOUSSONG, 0 },
160 { "REWIND", AVRC_ID_REWIND, KEY_REWIND, 0 },
161 { "FAST FORWARD", AVRC_ID_FAST_FOR, KEY_FAST_FORWARD, 0 },
165 /* the rc_black_addr_prefix and rc_white_addr_prefix are used to correct
166 * IOP issues of absolute volume feature
167 * We encoutered A2DP headsets/carkits advertising absolute volume but buggy.
168 * We would like to blacklist those devices.
169 * But we donot have a full list of the bad devices. So as a temp fix, we
170 * are blacklisting all the devices except the devices we have well tested,
171 * the ones in the whitelist.
173 * For now, only the rc_white_addr_prefix is used in the code while
174 * rc_black_addr_prefix is kept here for future long term solution.
176 static const UINT8 rc_white_addr_prefix[][3] = {
177 {0x94, 0xCE, 0x2C}, // Sony SBH50
178 {0x30, 0x17, 0xC8} // Sony wm600
181 static const char* rc_white_name[] = {
186 static void send_reject_response (UINT8 rc_handle, UINT8 label,
187 UINT8 pdu, UINT8 status);
188 static UINT8 opcode_from_pdu(UINT8 pdu);
189 static void send_metamsg_rsp (UINT8 rc_handle, UINT8 label,
190 tBTA_AV_CODE code, tAVRC_RESPONSE *pmetamsg_resp);
191 static void register_volumechange(UINT8 label);
192 static void lbl_init();
193 static void lbl_destroy();
194 static void init_all_transactions();
195 static bt_status_t get_transaction(rc_transaction_t **ptransaction);
196 static void release_transaction(UINT8 label);
197 static rc_transaction_t* get_transaction_by_lbl(UINT8 label);
198 static void handle_rc_metamsg_rsp(tBTA_AV_META_MSG *pmeta_msg);
199 static void btif_rc_upstreams_evt(UINT16 event, tAVRC_COMMAND* p_param, UINT8 ctype, UINT8 label);
200 static void btif_rc_upstreams_rsp_evt(UINT16 event, tAVRC_RESPONSE *pavrc_resp, UINT8 ctype, UINT8 label);
202 /*****************************************************************************
204 ******************************************************************************/
205 static btif_rc_cb_t btif_rc_cb;
206 static btrc_callbacks_t *bt_rc_callbacks = NULL;
207 static btrc_ctrl_callbacks_t *bt_rc_ctrl_callbacks = NULL;
209 /*****************************************************************************
211 ******************************************************************************/
213 /*****************************************************************************
215 ******************************************************************************/
216 extern BOOLEAN btif_hf_call_terminated_recently();
217 extern BOOLEAN check_cod(const bt_bdaddr_t *remote_bdaddr, uint32_t cod);
220 /*****************************************************************************
222 ******************************************************************************/
224 /*****************************************************************************
225 ** Local uinput helper functions
226 ******************************************************************************/
227 int send_event (int fd, uint16_t type, uint16_t code, int32_t value)
229 struct uinput_event event;
230 BTIF_TRACE_DEBUG("%s type:%u code:%u value:%d", __FUNCTION__,
232 memset(&event, 0, sizeof(event));
237 return write(fd, &event, sizeof(event));
240 void send_key (int fd, uint16_t key, int pressed)
242 BTIF_TRACE_DEBUG("%s fd:%d key:%u pressed:%d", __FUNCTION__,
250 BTIF_TRACE_DEBUG("AVRCP: Send key %d (%d) fd=%d", key, pressed, fd);
251 send_event(fd, EV_KEY, key, pressed);
252 send_event(fd, EV_SYN, SYN_REPORT, 0);
255 /************** uinput related functions **************/
256 int uinput_driver_check()
259 for (i=0; i < MAX_UINPUT_PATHS; i++)
261 if (access(uinput_dev_path[i], O_RDWR) == 0) {
265 BTIF_TRACE_ERROR("%s ERROR: uinput device is not in the system", __FUNCTION__);
269 int uinput_create(char *name)
271 struct uinput_dev dev;
274 for(x=0; x < MAX_UINPUT_PATHS; x++)
276 fd = open(uinput_dev_path[x], O_RDWR);
281 if (x == MAX_UINPUT_PATHS) {
282 BTIF_TRACE_ERROR("%s ERROR: uinput device open failed", __FUNCTION__);
285 memset(&dev, 0, sizeof(dev));
287 strncpy(dev.name, name, UINPUT_MAX_NAME_SIZE-1);
289 dev.id.bustype = BUS_BLUETOOTH;
290 dev.id.vendor = 0x0000;
291 dev.id.product = 0x0000;
292 dev.id.version = 0x0000;
294 if (write(fd, &dev, sizeof(dev)) < 0) {
295 BTIF_TRACE_ERROR("%s Unable to write device information", __FUNCTION__);
300 ioctl(fd, UI_SET_EVBIT, EV_KEY);
301 ioctl(fd, UI_SET_EVBIT, EV_REL);
302 ioctl(fd, UI_SET_EVBIT, EV_SYN);
304 for (x = 0; key_map[x].name != NULL; x++)
305 ioctl(fd, UI_SET_KEYBIT, key_map[x].mapped_id);
307 for(x = 0; x < KEY_MAX; x++)
308 ioctl(fd, UI_SET_KEYBIT, x);
310 if (ioctl(fd, UI_DEV_CREATE, NULL) < 0) {
311 BTIF_TRACE_ERROR("%s Unable to create uinput device", __FUNCTION__);
318 int init_uinput (void)
320 char *name = "AVRCP";
322 BTIF_TRACE_DEBUG("%s", __FUNCTION__);
323 uinput_fd = uinput_create(name);
325 BTIF_TRACE_ERROR("%s AVRCP: Failed to initialize uinput for %s (%d)",
326 __FUNCTION__, name, uinput_fd);
328 BTIF_TRACE_DEBUG("%s AVRCP: Initialized uinput for %s (fd=%d)",
329 __FUNCTION__, name, uinput_fd);
334 void close_uinput (void)
336 BTIF_TRACE_DEBUG("%s", __FUNCTION__);
338 ioctl(uinput_fd, UI_DEV_DESTROY);
345 void handle_rc_features()
347 btrc_remote_features_t rc_features = BTRC_FEAT_NONE;
349 bdcpy(rc_addr.address, btif_rc_cb.rc_addr);
351 if (dev_blacklisted_for_absolute_volume(btif_rc_cb.rc_addr))
353 btif_rc_cb.rc_features &= ~BTA_AV_FEAT_ADV_CTRL;
356 if (btif_rc_cb.rc_features & BTA_AV_FEAT_BROWSE)
358 rc_features |= BTRC_FEAT_BROWSE;
360 if ( (btif_rc_cb.rc_features & BTA_AV_FEAT_ADV_CTRL) &&
361 (btif_rc_cb.rc_features & BTA_AV_FEAT_RCTG))
363 rc_features |= BTRC_FEAT_ABSOLUTE_VOLUME;
365 if (btif_rc_cb.rc_features & BTA_AV_FEAT_METADATA)
367 rc_features |= BTRC_FEAT_METADATA;
369 BTIF_TRACE_DEBUG("%s: rc_features=0x%x", __FUNCTION__, rc_features);
370 HAL_CBACK(bt_rc_callbacks, remote_features_cb, &rc_addr, rc_features)
372 #if (AVRC_ADV_CTRL_INCLUDED == TRUE)
373 BTIF_TRACE_DEBUG("Checking for feature flags in btif_rc_handler with label %d",
374 btif_rc_cb.rc_vol_label);
375 // Register for volume change on connect
376 if(btif_rc_cb.rc_features & BTA_AV_FEAT_ADV_CTRL &&
377 btif_rc_cb.rc_features & BTA_AV_FEAT_RCTG)
379 rc_transaction_t *p_transaction=NULL;
380 bt_status_t status = BT_STATUS_NOT_READY;
381 if(MAX_LABEL==btif_rc_cb.rc_vol_label)
383 status=get_transaction(&p_transaction);
387 p_transaction=get_transaction_by_lbl(btif_rc_cb.rc_vol_label);
388 if(NULL!=p_transaction)
390 BTIF_TRACE_DEBUG("register_volumechange already in progress for label %d",
391 btif_rc_cb.rc_vol_label);
395 status=get_transaction(&p_transaction);
398 if(BT_STATUS_SUCCESS == status && NULL!=p_transaction)
400 btif_rc_cb.rc_vol_label=p_transaction->lbl;
401 register_volumechange(btif_rc_cb.rc_vol_label);
408 /***************************************************************************
409 * Function handle_rc_connect
411 * - Argument: tBTA_AV_RC_OPEN RC open data structure
413 * - Description: RC connection event handler
415 ***************************************************************************/
416 void handle_rc_connect (tBTA_AV_RC_OPEN *p_rc_open)
418 BTIF_TRACE_DEBUG("%s: rc_handle: %d", __FUNCTION__, p_rc_open->rc_handle);
419 bt_status_t result = BT_STATUS_SUCCESS;
420 #if (AVRC_CTLR_INCLUDED == TRUE)
424 if(p_rc_open->status == BTA_AV_SUCCESS)
426 memcpy(btif_rc_cb.rc_addr, p_rc_open->peer_addr, sizeof(BD_ADDR));
427 btif_rc_cb.rc_features = p_rc_open->peer_features;
428 btif_rc_cb.rc_vol_label=MAX_LABEL;
429 btif_rc_cb.rc_volume=MAX_VOLUME;
431 btif_rc_cb.rc_connected = TRUE;
432 btif_rc_cb.rc_handle = p_rc_open->rc_handle;
434 /* on locally initiated connection we will get remote features as part of connect */
435 if (btif_rc_cb.rc_features != 0)
436 handle_rc_features();
438 result = uinput_driver_check();
439 if(result == BT_STATUS_SUCCESS)
443 #if (AVRC_CTLR_INCLUDED == TRUE)
444 bdcpy(rc_addr.address, btif_rc_cb.rc_addr);
445 /* report connection state if device is AVRCP target */
446 if (btif_rc_cb.rc_features & BTA_AV_FEAT_RCTG) {
447 HAL_CBACK(bt_rc_ctrl_callbacks, connection_state_cb, TRUE, &rc_addr);
453 BTIF_TRACE_ERROR("%s Connect failed with error code: %d",
454 __FUNCTION__, p_rc_open->status);
455 btif_rc_cb.rc_connected = FALSE;
459 /***************************************************************************
460 * Function handle_rc_disconnect
462 * - Argument: tBTA_AV_RC_CLOSE RC close data structure
464 * - Description: RC disconnection event handler
466 ***************************************************************************/
467 void handle_rc_disconnect (tBTA_AV_RC_CLOSE *p_rc_close)
469 #if (AVRC_CTLR_INCLUDED == TRUE)
471 tBTA_AV_FEAT features;
473 BTIF_TRACE_DEBUG("%s: rc_handle: %d", __FUNCTION__, p_rc_close->rc_handle);
475 btif_rc_cb.rc_handle = 0;
476 btif_rc_cb.rc_connected = FALSE;
477 memset(btif_rc_cb.rc_addr, 0, sizeof(BD_ADDR));
478 memset(btif_rc_cb.rc_notif, 0, sizeof(btif_rc_cb.rc_notif));
479 #if (AVRC_CTLR_INCLUDED == TRUE)
480 features = btif_rc_cb.rc_features;
482 btif_rc_cb.rc_features = 0;
483 btif_rc_cb.rc_vol_label=MAX_LABEL;
484 btif_rc_cb.rc_volume=MAX_VOLUME;
485 init_all_transactions();
487 #if (AVRC_CTLR_INCLUDED == TRUE)
488 bdcpy(rc_addr.address, btif_rc_cb.rc_addr);
490 memset(btif_rc_cb.rc_addr, 0, sizeof(BD_ADDR));
491 #if (AVRC_CTLR_INCLUDED == TRUE)
492 /* report connection state if device is AVRCP target */
493 if (features & BTA_AV_FEAT_RCTG) {
494 HAL_CBACK(bt_rc_ctrl_callbacks, connection_state_cb, FALSE, &rc_addr);
499 /***************************************************************************
500 * Function handle_rc_passthrough_cmd
502 * - Argument: tBTA_AV_RC rc_id remote control command ID
503 * tBTA_AV_STATE key_state status of key press
505 * - Description: Remote control command handler
507 ***************************************************************************/
508 void handle_rc_passthrough_cmd ( tBTA_AV_REMOTE_CMD *p_remote_cmd)
513 BTIF_TRACE_DEBUG("%s: p_remote_cmd->rc_id=%d", __FUNCTION__, p_remote_cmd->rc_id);
515 /* If AVRC is open and peer sends PLAY but there is no AVDT, then we queue-up this PLAY */
518 /* queue AVRC PLAY if GAVDTP Open notification to app is pending (2 second timer) */
519 if ((p_remote_cmd->rc_id == BTA_AV_RC_PLAY) && (!btif_av_is_connected()))
521 if (p_remote_cmd->key_state == AVRC_STATE_PRESS)
523 APPL_TRACE_WARNING("%s: AVDT not open, queuing the PLAY command", __FUNCTION__);
524 btif_rc_cb.rc_pending_play = TRUE;
529 if ((p_remote_cmd->rc_id == BTA_AV_RC_PAUSE) && (btif_rc_cb.rc_pending_play))
531 APPL_TRACE_WARNING("%s: Clear the pending PLAY on PAUSE received", __FUNCTION__);
532 btif_rc_cb.rc_pending_play = FALSE;
536 if (p_remote_cmd->key_state == AVRC_STATE_RELEASE) {
544 /* If this is Play/Pause command (press or release) before processing, check the following
545 * a voice call has ended recently
546 * the remote device is not of type headset
547 * If the above conditions meet, drop the Play/Pause command
548 * This fix is to interop with certain carkits which sends an automatic PLAY or PAUSE
549 * commands right after call ends
551 if((p_remote_cmd->rc_id == BTA_AV_RC_PLAY || p_remote_cmd->rc_id == BTA_AV_RC_PAUSE)&&
552 (btif_hf_call_terminated_recently() == TRUE) &&
553 (check_cod( (const bt_bdaddr_t*)&(btif_rc_cb.rc_addr), COD_AV_HEADSETS) != TRUE))
555 BTIF_TRACE_DEBUG("%s:Dropping the play/Pause command received right after call end cmd:%d",
556 __FUNCTION__,p_remote_cmd->rc_id);
560 if (p_remote_cmd->rc_id == BTA_AV_RC_FAST_FOR || p_remote_cmd->rc_id == BTA_AV_RC_REWIND) {
561 HAL_CBACK(bt_rc_callbacks, passthrough_cmd_cb, p_remote_cmd->rc_id, pressed);
565 for (i = 0; key_map[i].name != NULL; i++) {
566 if (p_remote_cmd->rc_id == key_map[i].avrcp) {
567 BTIF_TRACE_DEBUG("%s: %s %s", __FUNCTION__, key_map[i].name, status);
569 /* MusicPlayer uses a long_press_timeout of 1 second for PLAYPAUSE button
570 * and maps that to autoshuffle. So if for some reason release for PLAY/PAUSE
571 * comes 1 second after the press, the MediaPlayer UI goes into a bad state.
572 * The reason for the delay could be sniff mode exit or some AVDTP procedure etc.
573 * The fix is to generate a release right after the press and drown the 'actual'
576 if ((key_map[i].release_quirk == 1) && (pressed == 0))
578 BTIF_TRACE_DEBUG("%s: AVRC %s Release Faked earlier, drowned now",
579 __FUNCTION__, key_map[i].name);
582 send_key(uinput_fd, key_map[i].mapped_id, pressed);
583 if ((key_map[i].release_quirk == 1) && (pressed == 1))
585 GKI_delay(30); // 30ms
586 BTIF_TRACE_DEBUG("%s: AVRC %s Release quirk enabled, send release now",
587 __FUNCTION__, key_map[i].name);
588 send_key(uinput_fd, key_map[i].mapped_id, 0);
594 if (key_map[i].name == NULL)
595 BTIF_TRACE_ERROR("%s AVRCP: unknown button 0x%02X %s", __FUNCTION__,
596 p_remote_cmd->rc_id, status);
599 /***************************************************************************
600 * Function handle_rc_passthrough_rsp
602 * - Argument: tBTA_AV_REMOTE_RSP passthrough command response
604 * - Description: Remote control passthrough response handler
606 ***************************************************************************/
607 void handle_rc_passthrough_rsp ( tBTA_AV_REMOTE_RSP *p_remote_rsp)
609 #if (AVRC_CTLR_INCLUDED == TRUE)
611 if (btif_rc_cb.rc_features & BTA_AV_FEAT_RCTG)
614 if (p_remote_rsp->key_state == AVRC_STATE_RELEASE)
625 BTIF_TRACE_DEBUG("%s: rc_id=%d status=%s", __FUNCTION__, p_remote_rsp->rc_id, status);
627 release_transaction(p_remote_rsp->label);
628 HAL_CBACK(bt_rc_ctrl_callbacks, passthrough_rsp_cb, p_remote_rsp->rc_id, key_state);
632 BTIF_TRACE_ERROR("%s DUT does not support AVRCP controller role", __FUNCTION__);
635 BTIF_TRACE_ERROR("%s AVRCP controller role is not enabled", __FUNCTION__);
639 void handle_uid_changed_notification(tBTA_AV_META_MSG *pmeta_msg, tAVRC_COMMAND *pavrc_command)
641 tAVRC_RESPONSE avrc_rsp = {0};
642 avrc_rsp.rsp.pdu = pavrc_command->pdu;
643 avrc_rsp.rsp.status = AVRC_STS_NO_ERROR;
644 avrc_rsp.rsp.opcode = pavrc_command->cmd.opcode;
646 avrc_rsp.reg_notif.event_id = pavrc_command->reg_notif.event_id;
647 avrc_rsp.reg_notif.param.uid_counter = 0;
649 send_metamsg_rsp(pmeta_msg->rc_handle, pmeta_msg->label, AVRC_RSP_INTERIM, &avrc_rsp);
650 send_metamsg_rsp(pmeta_msg->rc_handle, pmeta_msg->label, AVRC_RSP_CHANGED, &avrc_rsp);
655 /***************************************************************************
656 * Function handle_rc_metamsg_cmd
658 * - Argument: tBTA_AV_VENDOR Structure containing the received
661 * - Description: Remote control metamsg command handler (AVRCP 1.3)
663 ***************************************************************************/
664 void handle_rc_metamsg_cmd (tBTA_AV_META_MSG *pmeta_msg)
666 /* Parse the metamsg command and pass it on to BTL-IFS */
667 UINT8 scratch_buf[512] = {0};
668 tAVRC_COMMAND avrc_command = {0};
671 BTIF_TRACE_EVENT("+ %s", __FUNCTION__);
673 if (pmeta_msg->p_msg->hdr.opcode != AVRC_OP_VENDOR)
675 BTIF_TRACE_WARNING("Invalid opcode: %x", pmeta_msg->p_msg->hdr.opcode);
678 if (pmeta_msg->len < 3)
680 BTIF_TRACE_WARNING("Invalid length.Opcode: 0x%x, len: 0x%x", pmeta_msg->p_msg->hdr.opcode,
685 if (pmeta_msg->code >= AVRC_RSP_NOT_IMPL)
687 #if (AVRC_ADV_CTRL_INCLUDED == TRUE)
689 rc_transaction_t *transaction=NULL;
690 transaction=get_transaction_by_lbl(pmeta_msg->label);
691 if(NULL!=transaction)
693 handle_rc_metamsg_rsp(pmeta_msg);
697 BTIF_TRACE_DEBUG("%s:Discard vendor dependent rsp. code: %d label:%d.",
698 __FUNCTION__, pmeta_msg->code, pmeta_msg->label);
704 BTIF_TRACE_DEBUG("%s:Received vendor dependent rsp. code: %d len: %d. Not processing it.",
705 __FUNCTION__, pmeta_msg->code, pmeta_msg->len);
711 status=AVRC_ParsCommand(pmeta_msg->p_msg, &avrc_command, scratch_buf, sizeof(scratch_buf));
712 BTIF_TRACE_DEBUG("Received vendor command.code,PDU and label: %d, %d,%d",pmeta_msg->code,
713 avrc_command.cmd.pdu, pmeta_msg->label);
715 if (status != AVRC_STS_NO_ERROR)
718 BTIF_TRACE_WARNING("%s: Error in parsing received metamsg command. status: 0x%02x",
719 __FUNCTION__, status);
720 send_reject_response(pmeta_msg->rc_handle, pmeta_msg->label, avrc_command.pdu, status);
724 /* if RegisterNotification, add it to our registered queue */
726 if (avrc_command.cmd.pdu == AVRC_PDU_REGISTER_NOTIFICATION)
728 UINT8 event_id = avrc_command.reg_notif.event_id;
729 BTIF_TRACE_EVENT("%s:New register notification received.event_id:%s,label:0x%x,code:%x",
730 __FUNCTION__,dump_rc_notification_event_id(event_id), pmeta_msg->label,pmeta_msg->code);
731 btif_rc_cb.rc_notif[event_id-1].bNotify = TRUE;
732 btif_rc_cb.rc_notif[event_id-1].label = pmeta_msg->label;
734 if(event_id == AVRC_EVT_UIDS_CHANGE)
736 handle_uid_changed_notification(pmeta_msg, &avrc_command);
742 BTIF_TRACE_EVENT("%s: Passing received metamsg command to app. pdu: %s",
743 __FUNCTION__, dump_rc_pdu(avrc_command.cmd.pdu));
745 /* Since handle_rc_metamsg_cmd() itself is called from
746 *btif context, no context switching is required. Invoke
747 * btif_rc_upstreams_evt directly from here. */
748 btif_rc_upstreams_evt((uint16_t)avrc_command.cmd.pdu, &avrc_command, pmeta_msg->code,
753 /***************************************************************************
755 ** Function btif_rc_handler
757 ** Description RC event handler
759 ***************************************************************************/
760 void btif_rc_handler(tBTA_AV_EVT event, tBTA_AV *p_data)
762 BTIF_TRACE_DEBUG ("%s event:%s", __FUNCTION__, dump_rc_event(event));
765 case BTA_AV_RC_OPEN_EVT:
767 BTIF_TRACE_DEBUG("Peer_features:%x", p_data->rc_open.peer_features);
768 handle_rc_connect( &(p_data->rc_open) );
771 case BTA_AV_RC_CLOSE_EVT:
773 handle_rc_disconnect( &(p_data->rc_close) );
776 case BTA_AV_REMOTE_CMD_EVT:
778 BTIF_TRACE_DEBUG("rc_id:0x%x key_state:%d", p_data->remote_cmd.rc_id,
779 p_data->remote_cmd.key_state);
780 handle_rc_passthrough_cmd( (&p_data->remote_cmd) );
783 #if (AVRC_CTLR_INCLUDED == TRUE)
784 case BTA_AV_REMOTE_RSP_EVT:
786 BTIF_TRACE_DEBUG("RSP: rc_id:0x%x key_state:%d", p_data->remote_rsp.rc_id,
787 p_data->remote_rsp.key_state);
788 handle_rc_passthrough_rsp( (&p_data->remote_rsp) );
792 case BTA_AV_RC_FEAT_EVT:
794 BTIF_TRACE_DEBUG("Peer_features:%x", p_data->rc_feat.peer_features);
795 btif_rc_cb.rc_features = p_data->rc_feat.peer_features;
796 handle_rc_features();
799 case BTA_AV_META_MSG_EVT:
801 BTIF_TRACE_DEBUG("BTA_AV_META_MSG_EVT code:%d label:%d", p_data->meta_msg.code,
802 p_data->meta_msg.label);
803 BTIF_TRACE_DEBUG(" company_id:0x%x len:%d handle:%d", p_data->meta_msg.company_id,
804 p_data->meta_msg.len, p_data->meta_msg.rc_handle);
805 /* handle the metamsg command */
806 handle_rc_metamsg_cmd(&(p_data->meta_msg));
810 BTIF_TRACE_DEBUG("Unhandled RC event : 0x%x", event);
814 /***************************************************************************
816 ** Function btif_rc_get_connected_peer
818 ** Description Fetches the connected headset's BD_ADDR if any
820 ***************************************************************************/
821 BOOLEAN btif_rc_get_connected_peer(BD_ADDR peer_addr)
823 if (btif_rc_cb.rc_connected == TRUE) {
824 bdcpy(peer_addr, btif_rc_cb.rc_addr);
830 /***************************************************************************
832 ** Function btif_rc_check_handle_pending_play
834 ** Description Clears the queued PLAY command. if bSend is TRUE, forwards to app
836 ***************************************************************************/
838 /* clear the queued PLAY command. if bSend is TRUE, forward to app */
839 void btif_rc_check_handle_pending_play (BD_ADDR peer_addr, BOOLEAN bSendToApp)
843 BTIF_TRACE_DEBUG("%s: bSendToApp=%d", __FUNCTION__, bSendToApp);
844 if (btif_rc_cb.rc_pending_play)
848 tBTA_AV_REMOTE_CMD remote_cmd;
849 APPL_TRACE_DEBUG("%s: Sending queued PLAYED event to app", __FUNCTION__);
851 memset (&remote_cmd, 0, sizeof(tBTA_AV_REMOTE_CMD));
852 remote_cmd.rc_handle = btif_rc_cb.rc_handle;
853 remote_cmd.rc_id = AVRC_ID_PLAY;
854 remote_cmd.hdr.ctype = AVRC_CMD_CTRL;
855 remote_cmd.hdr.opcode = AVRC_OP_PASS_THRU;
857 /* delay sending to app, else there is a timing issue in the framework,
858 ** which causes the audio to be on th device's speaker. Delay between
862 /* send to app - both PRESSED & RELEASED */
863 remote_cmd.key_state = AVRC_STATE_PRESS;
864 handle_rc_passthrough_cmd( &remote_cmd );
868 remote_cmd.key_state = AVRC_STATE_RELEASE;
869 handle_rc_passthrough_cmd( &remote_cmd );
871 btif_rc_cb.rc_pending_play = FALSE;
875 /* Generic reject response */
876 static void send_reject_response (UINT8 rc_handle, UINT8 label, UINT8 pdu, UINT8 status)
878 UINT8 ctype = AVRC_RSP_REJ;
879 tAVRC_RESPONSE avrc_rsp;
880 BT_HDR *p_msg = NULL;
881 memset (&avrc_rsp, 0, sizeof(tAVRC_RESPONSE));
883 avrc_rsp.rsp.opcode = opcode_from_pdu(pdu);
884 avrc_rsp.rsp.pdu = pdu;
885 avrc_rsp.rsp.status = status;
887 if (AVRC_STS_NO_ERROR == (status = AVRC_BldResponse(rc_handle, &avrc_rsp, &p_msg)) )
889 BTIF_TRACE_DEBUG("%s:Sending error notification to handle:%d. pdu:%s,status:0x%02x",
890 __FUNCTION__, rc_handle, dump_rc_pdu(pdu), status);
891 BTA_AvMetaRsp(rc_handle, label, ctype, p_msg);
895 /***************************************************************************
896 * Function send_metamsg_rsp
899 * rc_handle RC handle corresponding to the connected RC
900 * label Label of the RC response
902 * pmetamsg_resp Vendor response
904 * - Description: Remote control metamsg response handler (AVRCP 1.3)
906 ***************************************************************************/
907 static void send_metamsg_rsp (UINT8 rc_handle, UINT8 label, tBTA_AV_CODE code,
908 tAVRC_RESPONSE *pmetamsg_resp)
914 BTIF_TRACE_WARNING("%s: Invalid response received from application", __FUNCTION__);
918 BTIF_TRACE_EVENT("+%s: rc_handle: %d, label: %d, code: 0x%02x, pdu: %s", __FUNCTION__,
919 rc_handle, label, code, dump_rc_pdu(pmetamsg_resp->rsp.pdu));
921 if (pmetamsg_resp->rsp.status != AVRC_STS_NO_ERROR)
923 ctype = AVRC_RSP_REJ;
927 if ( code < AVRC_RSP_NOT_IMPL)
929 if (code == AVRC_CMD_NOTIF)
931 ctype = AVRC_RSP_INTERIM;
933 else if (code == AVRC_CMD_STATUS)
935 ctype = AVRC_RSP_IMPL_STBL;
939 ctype = AVRC_RSP_ACCEPT;
947 /* if response is for register_notification, make sure the rc has
948 actually registered for this */
949 if((pmetamsg_resp->rsp.pdu == AVRC_PDU_REGISTER_NOTIFICATION) && (code == AVRC_RSP_CHANGED))
951 BOOLEAN bSent = FALSE;
952 UINT8 event_id = pmetamsg_resp->reg_notif.event_id;
953 BOOLEAN bNotify = (btif_rc_cb.rc_connected) && (btif_rc_cb.rc_notif[event_id-1].bNotify);
955 /* de-register this notification for a CHANGED response */
956 btif_rc_cb.rc_notif[event_id-1].bNotify = FALSE;
957 BTIF_TRACE_DEBUG("%s rc_handle: %d. event_id: 0x%02d bNotify:%u", __FUNCTION__,
958 btif_rc_cb.rc_handle, event_id, bNotify);
961 BT_HDR *p_msg = NULL;
964 if (AVRC_STS_NO_ERROR == (status = AVRC_BldResponse(btif_rc_cb.rc_handle,
965 pmetamsg_resp, &p_msg)) )
967 BTIF_TRACE_DEBUG("%s Sending notification to rc_handle: %d. event_id: 0x%02d",
968 __FUNCTION__, btif_rc_cb.rc_handle, event_id);
970 BTA_AvMetaRsp(btif_rc_cb.rc_handle, btif_rc_cb.rc_notif[event_id-1].label,
975 BTIF_TRACE_WARNING("%s failed to build metamsg response. status: 0x%02x",
976 __FUNCTION__, status);
983 BTIF_TRACE_DEBUG("%s: Notification not sent, as there are no RC connections or the \
984 CT has not subscribed for event_id: %s", __FUNCTION__, dump_rc_notification_event_id(event_id));
989 /* All other commands go here */
991 BT_HDR *p_msg = NULL;
994 status = AVRC_BldResponse(rc_handle, pmetamsg_resp, &p_msg);
996 if (status == AVRC_STS_NO_ERROR)
998 BTA_AvMetaRsp(rc_handle, label, ctype, p_msg);
1002 BTIF_TRACE_ERROR("%s: failed to build metamsg response. status: 0x%02x",
1003 __FUNCTION__, status);
1008 static UINT8 opcode_from_pdu(UINT8 pdu)
1014 case AVRC_PDU_NEXT_GROUP:
1015 case AVRC_PDU_PREV_GROUP: /* pass thru */
1016 opcode = AVRC_OP_PASS_THRU;
1019 default: /* vendor */
1020 opcode = AVRC_OP_VENDOR;
1027 /*******************************************************************************
1029 ** Function btif_rc_upstreams_evt
1031 ** Description Executes AVRC UPSTREAMS events in btif context.
1035 *******************************************************************************/
1036 static void btif_rc_upstreams_evt(UINT16 event, tAVRC_COMMAND *pavrc_cmd, UINT8 ctype, UINT8 label)
1038 BTIF_TRACE_EVENT("%s pdu: %s handle: 0x%x ctype:%x label:%x", __FUNCTION__,
1039 dump_rc_pdu(pavrc_cmd->pdu), btif_rc_cb.rc_handle, ctype, label);
1043 case AVRC_PDU_GET_PLAY_STATUS:
1045 FILL_PDU_QUEUE(IDX_GET_PLAY_STATUS_RSP, ctype, label, TRUE)
1046 HAL_CBACK(bt_rc_callbacks, get_play_status_cb);
1049 case AVRC_PDU_LIST_PLAYER_APP_ATTR:
1050 case AVRC_PDU_LIST_PLAYER_APP_VALUES:
1051 case AVRC_PDU_GET_CUR_PLAYER_APP_VALUE:
1052 case AVRC_PDU_SET_PLAYER_APP_VALUE:
1053 case AVRC_PDU_GET_PLAYER_APP_ATTR_TEXT:
1054 case AVRC_PDU_GET_PLAYER_APP_VALUE_TEXT:
1056 /* TODO: Add support for Application Settings */
1057 send_reject_response (btif_rc_cb.rc_handle, label, pavrc_cmd->pdu, AVRC_STS_BAD_CMD);
1060 case AVRC_PDU_GET_ELEMENT_ATTR:
1062 btrc_media_attr_t element_attrs[BTRC_MAX_ELEM_ATTR_SIZE];
1064 memset(&element_attrs, 0, sizeof(element_attrs));
1065 if (pavrc_cmd->get_elem_attrs.num_attr == 0)
1067 /* CT requests for all attributes */
1069 num_attr = BTRC_MAX_ELEM_ATTR_SIZE;
1070 for (attr_cnt = 0; attr_cnt < BTRC_MAX_ELEM_ATTR_SIZE; attr_cnt++)
1072 element_attrs[attr_cnt] = attr_cnt + 1;
1075 else if (pavrc_cmd->get_elem_attrs.num_attr == 0xFF)
1077 /* 0xff indicates, no attributes requested - reject */
1078 send_reject_response (btif_rc_cb.rc_handle, label, pavrc_cmd->pdu,
1079 AVRC_STS_BAD_PARAM);
1084 int attr_cnt, filled_attr_count;
1087 /* Attribute IDs from 1 to AVRC_MAX_NUM_MEDIA_ATTR_ID are only valid,
1088 * hence HAL definition limits the attributes to AVRC_MAX_NUM_MEDIA_ATTR_ID.
1089 * Fill only valid entries.
1091 for (attr_cnt = 0; (attr_cnt < pavrc_cmd->get_elem_attrs.num_attr) &&
1092 (num_attr < AVRC_MAX_NUM_MEDIA_ATTR_ID); attr_cnt++)
1094 if ((pavrc_cmd->get_elem_attrs.attrs[attr_cnt] > 0) &&
1095 (pavrc_cmd->get_elem_attrs.attrs[attr_cnt] <= AVRC_MAX_NUM_MEDIA_ATTR_ID))
1097 /* Skip the duplicate entries : PTS sends duplicate entries for Fragment cases
1099 for (filled_attr_count = 0; filled_attr_count < num_attr; filled_attr_count++)
1101 if (element_attrs[filled_attr_count] == pavrc_cmd->get_elem_attrs.attrs[attr_cnt])
1104 if (filled_attr_count == num_attr)
1106 element_attrs[num_attr] = pavrc_cmd->get_elem_attrs.attrs[attr_cnt];
1112 FILL_PDU_QUEUE(IDX_GET_ELEMENT_ATTR_RSP, ctype, label, TRUE);
1113 HAL_CBACK(bt_rc_callbacks, get_element_attr_cb, num_attr, element_attrs);
1116 case AVRC_PDU_REGISTER_NOTIFICATION:
1118 if(pavrc_cmd->reg_notif.event_id == BTRC_EVT_PLAY_POS_CHANGED &&
1119 pavrc_cmd->reg_notif.param == 0)
1121 BTIF_TRACE_WARNING("%s Device registering position changed with illegal param 0.",
1123 send_reject_response (btif_rc_cb.rc_handle, label, pavrc_cmd->pdu, AVRC_STS_BAD_PARAM);
1124 /* de-register this notification for a rejected response */
1125 btif_rc_cb.rc_notif[BTRC_EVT_PLAY_POS_CHANGED - 1].bNotify = FALSE;
1128 HAL_CBACK(bt_rc_callbacks, register_notification_cb, pavrc_cmd->reg_notif.event_id,
1129 pavrc_cmd->reg_notif.param);
1132 case AVRC_PDU_INFORM_DISPLAY_CHARSET:
1134 tAVRC_RESPONSE avrc_rsp;
1135 BTIF_TRACE_EVENT("%s() AVRC_PDU_INFORM_DISPLAY_CHARSET", __FUNCTION__);
1136 if(btif_rc_cb.rc_connected == TRUE)
1138 memset(&(avrc_rsp.inform_charset), 0, sizeof(tAVRC_RSP));
1139 avrc_rsp.inform_charset.opcode=opcode_from_pdu(AVRC_PDU_INFORM_DISPLAY_CHARSET);
1140 avrc_rsp.inform_charset.pdu=AVRC_PDU_INFORM_DISPLAY_CHARSET;
1141 avrc_rsp.inform_charset.status=AVRC_STS_NO_ERROR;
1142 send_metamsg_rsp(btif_rc_cb.rc_handle, label, ctype, &avrc_rsp);
1148 send_reject_response (btif_rc_cb.rc_handle, label, pavrc_cmd->pdu,
1149 (pavrc_cmd->pdu == AVRC_PDU_SEARCH)?AVRC_STS_SEARCH_NOT_SUP:AVRC_STS_BAD_CMD);
1158 /*******************************************************************************
1160 ** Function btif_rc_upstreams_rsp_evt
1162 ** Description Executes AVRC UPSTREAMS response events in btif context.
1166 *******************************************************************************/
1167 static void btif_rc_upstreams_rsp_evt(UINT16 event, tAVRC_RESPONSE *pavrc_resp, UINT8 ctype, UINT8 label)
1169 BTIF_TRACE_EVENT("%s pdu: %s handle: 0x%x ctype:%x label:%x", __FUNCTION__,
1170 dump_rc_pdu(pavrc_resp->pdu), btif_rc_cb.rc_handle, ctype, label);
1172 #if (AVRC_ADV_CTRL_INCLUDED == TRUE)
1175 case AVRC_PDU_REGISTER_NOTIFICATION:
1177 if(AVRC_RSP_CHANGED==ctype)
1178 btif_rc_cb.rc_volume=pavrc_resp->reg_notif.param.volume;
1179 HAL_CBACK(bt_rc_callbacks, volume_change_cb, pavrc_resp->reg_notif.param.volume,ctype)
1183 case AVRC_PDU_SET_ABSOLUTE_VOLUME:
1185 BTIF_TRACE_DEBUG("Set absolute volume change event received: volume %d,ctype %d",
1186 pavrc_resp->volume.volume,ctype);
1187 if(AVRC_RSP_ACCEPT==ctype)
1188 btif_rc_cb.rc_volume=pavrc_resp->volume.volume;
1189 HAL_CBACK(bt_rc_callbacks,volume_change_cb,pavrc_resp->volume.volume,ctype)
1199 /************************************************************************************
1200 ** AVRCP API Functions
1201 ************************************************************************************/
1203 /*******************************************************************************
1207 ** Description Initializes the AVRC interface
1209 ** Returns bt_status_t
1211 *******************************************************************************/
1212 static bt_status_t init(btrc_callbacks_t* callbacks )
1214 BTIF_TRACE_EVENT("## %s ##", __FUNCTION__);
1215 bt_status_t result = BT_STATUS_SUCCESS;
1217 if (bt_rc_callbacks)
1218 return BT_STATUS_DONE;
1220 bt_rc_callbacks = callbacks;
1221 memset (&btif_rc_cb, 0, sizeof(btif_rc_cb));
1222 btif_rc_cb.rc_vol_label=MAX_LABEL;
1223 btif_rc_cb.rc_volume=MAX_VOLUME;
1229 /*******************************************************************************
1231 ** Function init_ctrl
1233 ** Description Initializes the AVRC interface
1235 ** Returns bt_status_t
1237 *******************************************************************************/
1238 static bt_status_t init_ctrl(btrc_ctrl_callbacks_t* callbacks )
1240 BTIF_TRACE_EVENT("## %s ##", __FUNCTION__);
1241 bt_status_t result = BT_STATUS_SUCCESS;
1243 if (bt_rc_ctrl_callbacks)
1244 return BT_STATUS_DONE;
1246 bt_rc_ctrl_callbacks = callbacks;
1247 memset (&btif_rc_cb, 0, sizeof(btif_rc_cb));
1248 btif_rc_cb.rc_vol_label=MAX_LABEL;
1249 btif_rc_cb.rc_volume=MAX_VOLUME;
1255 /***************************************************************************
1257 ** Function get_play_status_rsp
1259 ** Description Returns the current play status.
1260 ** This method is called in response to
1261 ** GetPlayStatus request.
1263 ** Returns bt_status_t
1265 ***************************************************************************/
1266 static bt_status_t get_play_status_rsp(btrc_play_status_t play_status, uint32_t song_len,
1269 tAVRC_RESPONSE avrc_rsp;
1271 memset(&(avrc_rsp.get_play_status), 0, sizeof(tAVRC_GET_PLAY_STATUS_RSP));
1272 avrc_rsp.get_play_status.song_len = song_len;
1273 avrc_rsp.get_play_status.song_pos = song_pos;
1274 avrc_rsp.get_play_status.play_status = play_status;
1276 avrc_rsp.get_play_status.pdu = AVRC_PDU_GET_PLAY_STATUS;
1277 avrc_rsp.get_play_status.opcode = opcode_from_pdu(AVRC_PDU_GET_PLAY_STATUS);
1278 avrc_rsp.get_play_status.status = AVRC_STS_NO_ERROR;
1279 /* Send the response */
1280 SEND_METAMSG_RSP(IDX_GET_PLAY_STATUS_RSP, &avrc_rsp);
1281 return BT_STATUS_SUCCESS;
1284 /***************************************************************************
1286 ** Function get_element_attr_rsp
1288 ** Description Returns the current songs' element attributes
1291 ** Returns bt_status_t
1293 ***************************************************************************/
1294 static bt_status_t get_element_attr_rsp(uint8_t num_attr, btrc_element_attr_val_t *p_attrs)
1296 tAVRC_RESPONSE avrc_rsp;
1298 tAVRC_ATTR_ENTRY element_attrs[BTRC_MAX_ELEM_ATTR_SIZE];
1300 memset(element_attrs, 0, sizeof(tAVRC_ATTR_ENTRY) * num_attr);
1304 avrc_rsp.get_play_status.status = AVRC_STS_BAD_PARAM;
1308 for (i=0; i<num_attr; i++) {
1309 element_attrs[i].attr_id = p_attrs[i].attr_id;
1310 element_attrs[i].name.charset_id = AVRC_CHARSET_ID_UTF8;
1311 element_attrs[i].name.str_len = (UINT16)strlen((char *)p_attrs[i].text);
1312 element_attrs[i].name.p_str = p_attrs[i].text;
1313 BTIF_TRACE_DEBUG("%s attr_id:0x%x, charset_id:0x%x, str_len:%d, str:%s",
1314 __FUNCTION__, (unsigned int)element_attrs[i].attr_id,
1315 element_attrs[i].name.charset_id, element_attrs[i].name.str_len,
1316 element_attrs[i].name.p_str);
1318 avrc_rsp.get_play_status.status = AVRC_STS_NO_ERROR;
1320 avrc_rsp.get_elem_attrs.num_attr = num_attr;
1321 avrc_rsp.get_elem_attrs.p_attrs = element_attrs;
1322 avrc_rsp.get_elem_attrs.pdu = AVRC_PDU_GET_ELEMENT_ATTR;
1323 avrc_rsp.get_elem_attrs.opcode = opcode_from_pdu(AVRC_PDU_GET_ELEMENT_ATTR);
1324 /* Send the response */
1325 SEND_METAMSG_RSP(IDX_GET_ELEMENT_ATTR_RSP, &avrc_rsp);
1326 return BT_STATUS_SUCCESS;
1329 /***************************************************************************
1331 ** Function register_notification_rsp
1333 ** Description Response to the register notification request.
1336 ** Returns bt_status_t
1338 ***************************************************************************/
1339 static bt_status_t register_notification_rsp(btrc_event_id_t event_id,
1340 btrc_notification_type_t type, btrc_register_notification_t *p_param)
1342 tAVRC_RESPONSE avrc_rsp;
1344 BTIF_TRACE_EVENT("## %s ## event_id:%s", __FUNCTION__, dump_rc_notification_event_id(event_id));
1345 if (btif_rc_cb.rc_notif[event_id-1].bNotify == FALSE)
1347 BTIF_TRACE_ERROR("Avrcp Event id not registered: event_id = %x", event_id);
1348 return BT_STATUS_NOT_READY;
1350 memset(&(avrc_rsp.reg_notif), 0, sizeof(tAVRC_REG_NOTIF_RSP));
1351 avrc_rsp.reg_notif.event_id = event_id;
1355 case BTRC_EVT_PLAY_STATUS_CHANGED:
1356 avrc_rsp.reg_notif.param.play_status = p_param->play_status;
1358 case BTRC_EVT_TRACK_CHANGE:
1359 memcpy(&(avrc_rsp.reg_notif.param.track), &(p_param->track), sizeof(btrc_uid_t));
1361 case BTRC_EVT_PLAY_POS_CHANGED:
1362 avrc_rsp.reg_notif.param.play_pos = p_param->song_pos;
1365 BTIF_TRACE_WARNING("%s : Unhandled event ID : 0x%x", __FUNCTION__, event_id);
1366 return BT_STATUS_UNHANDLED;
1369 avrc_rsp.reg_notif.pdu = AVRC_PDU_REGISTER_NOTIFICATION;
1370 avrc_rsp.reg_notif.opcode = opcode_from_pdu(AVRC_PDU_REGISTER_NOTIFICATION);
1371 avrc_rsp.get_play_status.status = AVRC_STS_NO_ERROR;
1373 /* Send the response. */
1374 send_metamsg_rsp(btif_rc_cb.rc_handle, btif_rc_cb.rc_notif[event_id-1].label,
1375 ((type == BTRC_NOTIFICATION_TYPE_INTERIM)?AVRC_CMD_NOTIF:AVRC_RSP_CHANGED), &avrc_rsp);
1376 return BT_STATUS_SUCCESS;
1379 /***************************************************************************
1381 ** Function set_volume
1383 ** Description Send current volume setting to remote side.
1384 ** Support limited to SetAbsoluteVolume
1385 ** This can be enhanced to support Relative Volume (AVRCP 1.0).
1386 ** With RelateVolume, we will send VOLUME_UP/VOLUME_DOWN
1387 ** as opposed to absolute volume level
1388 ** volume: Should be in the range 0-127. bit7 is reseved and cannot be set
1390 ** Returns bt_status_t
1392 ***************************************************************************/
1393 static bt_status_t set_volume(uint8_t volume)
1395 BTIF_TRACE_DEBUG("%s", __FUNCTION__);
1397 tAVRC_STS status = BT_STATUS_UNSUPPORTED;
1398 rc_transaction_t *p_transaction=NULL;
1400 if(btif_rc_cb.rc_volume==volume)
1402 status=BT_STATUS_DONE;
1403 BTIF_TRACE_ERROR("%s: volume value already set earlier: 0x%02x",__FUNCTION__, volume);
1407 if ((btif_rc_cb.rc_features & BTA_AV_FEAT_RCTG) &&
1408 (btif_rc_cb.rc_features & BTA_AV_FEAT_ADV_CTRL))
1410 tAVRC_COMMAND avrc_cmd = {0};
1411 BT_HDR *p_msg = NULL;
1413 BTIF_TRACE_DEBUG("%s: Peer supports absolute volume. newVolume=%d", __FUNCTION__, volume);
1414 avrc_cmd.volume.opcode = AVRC_OP_VENDOR;
1415 avrc_cmd.volume.pdu = AVRC_PDU_SET_ABSOLUTE_VOLUME;
1416 avrc_cmd.volume.status = AVRC_STS_NO_ERROR;
1417 avrc_cmd.volume.volume = volume;
1419 if (AVRC_BldCommand(&avrc_cmd, &p_msg) == AVRC_STS_NO_ERROR)
1421 bt_status_t tran_status=get_transaction(&p_transaction);
1422 if(BT_STATUS_SUCCESS == tran_status && NULL!=p_transaction)
1424 BTIF_TRACE_DEBUG("%s msgreq being sent out with label %d",
1425 __FUNCTION__,p_transaction->lbl);
1426 BTA_AvMetaCmd(btif_rc_cb.rc_handle,p_transaction->lbl, AVRC_CMD_CTRL, p_msg);
1427 status = BT_STATUS_SUCCESS;
1433 BTIF_TRACE_ERROR("%s: failed to obtain transaction details. status: 0x%02x",
1434 __FUNCTION__, tran_status);
1435 status = BT_STATUS_FAIL;
1440 BTIF_TRACE_ERROR("%s: failed to build absolute volume command. status: 0x%02x",
1441 __FUNCTION__, status);
1442 status = BT_STATUS_FAIL;
1446 status=BT_STATUS_NOT_READY;
1451 /***************************************************************************
1453 ** Function register_volumechange
1455 ** Description Register for volume change notification from remote side.
1459 ***************************************************************************/
1461 static void register_volumechange (UINT8 lbl)
1463 tAVRC_COMMAND avrc_cmd = {0};
1464 BT_HDR *p_msg = NULL;
1465 tAVRC_STS BldResp=AVRC_STS_BAD_CMD;
1466 rc_transaction_t *p_transaction=NULL;
1468 BTIF_TRACE_DEBUG("%s called with label:%d",__FUNCTION__,lbl);
1470 avrc_cmd.cmd.opcode=0x00;
1471 avrc_cmd.pdu = AVRC_PDU_REGISTER_NOTIFICATION;
1472 avrc_cmd.reg_notif.event_id = AVRC_EVT_VOLUME_CHANGE;
1473 avrc_cmd.reg_notif.status = AVRC_STS_NO_ERROR;
1475 BldResp=AVRC_BldCommand(&avrc_cmd, &p_msg);
1476 if(AVRC_STS_NO_ERROR==BldResp && p_msg)
1478 p_transaction=get_transaction_by_lbl(lbl);
1479 if(NULL!=p_transaction)
1481 BTA_AvMetaCmd(btif_rc_cb.rc_handle,p_transaction->lbl, AVRC_CMD_NOTIF, p_msg);
1482 BTIF_TRACE_DEBUG("%s:BTA_AvMetaCmd called",__FUNCTION__);
1488 BTIF_TRACE_ERROR("%s transaction not obtained with label: %d",__FUNCTION__,lbl);
1492 BTIF_TRACE_ERROR("%s failed to build command:%d",__FUNCTION__,BldResp);
1496 /***************************************************************************
1498 ** Function handle_rc_metamsg_rsp
1500 ** Description Handle RC metamessage response
1504 ***************************************************************************/
1505 static void handle_rc_metamsg_rsp(tBTA_AV_META_MSG *pmeta_msg)
1507 tAVRC_RESPONSE avrc_response = {0};
1508 UINT8 scratch_buf[512] = {0};
1509 tAVRC_STS status = BT_STATUS_UNSUPPORTED;
1511 if(AVRC_OP_VENDOR==pmeta_msg->p_msg->hdr.opcode &&(AVRC_RSP_CHANGED==pmeta_msg->code
1512 || AVRC_RSP_INTERIM==pmeta_msg->code || AVRC_RSP_ACCEPT==pmeta_msg->code
1513 || AVRC_RSP_REJ==pmeta_msg->code || AVRC_RSP_NOT_IMPL==pmeta_msg->code))
1515 status=AVRC_ParsResponse(pmeta_msg->p_msg, &avrc_response, scratch_buf, sizeof(scratch_buf));
1516 BTIF_TRACE_DEBUG("%s: code %d,event ID %d,PDU %x,parsing status %d, label:%d",
1517 __FUNCTION__,pmeta_msg->code,avrc_response.reg_notif.event_id,avrc_response.reg_notif.pdu,
1518 status, pmeta_msg->label);
1520 if (status != AVRC_STS_NO_ERROR)
1522 if(AVRC_PDU_REGISTER_NOTIFICATION==avrc_response.rsp.pdu
1523 && AVRC_EVT_VOLUME_CHANGE==avrc_response.reg_notif.event_id
1524 && btif_rc_cb.rc_vol_label==pmeta_msg->label)
1526 btif_rc_cb.rc_vol_label=MAX_LABEL;
1527 release_transaction(btif_rc_cb.rc_vol_label);
1529 else if(AVRC_PDU_SET_ABSOLUTE_VOLUME==avrc_response.rsp.pdu)
1531 release_transaction(pmeta_msg->label);
1535 else if(AVRC_PDU_REGISTER_NOTIFICATION==avrc_response.rsp.pdu
1536 && AVRC_EVT_VOLUME_CHANGE==avrc_response.reg_notif.event_id
1537 && btif_rc_cb.rc_vol_label!=pmeta_msg->label)
1539 // Just discard the message, if the device sends back with an incorrect label
1540 BTIF_TRACE_DEBUG("%s:Discarding register notfn in rsp.code: %d and label %d",
1541 __FUNCTION__, pmeta_msg->code, pmeta_msg->label);
1547 BTIF_TRACE_DEBUG("%s:Received vendor dependent in adv ctrl rsp. code: %d len: %d. Not processing it.",
1548 __FUNCTION__, pmeta_msg->code, pmeta_msg->len);
1552 if(AVRC_PDU_REGISTER_NOTIFICATION==avrc_response.rsp.pdu
1553 && AVRC_EVT_VOLUME_CHANGE==avrc_response.reg_notif.event_id
1554 && AVRC_RSP_CHANGED==pmeta_msg->code)
1556 /* re-register for volume change notification */
1557 // Do not re-register for rejected case, as it might get into endless loop
1558 register_volumechange(btif_rc_cb.rc_vol_label);
1560 else if(AVRC_PDU_SET_ABSOLUTE_VOLUME==avrc_response.rsp.pdu)
1562 /* free up the label here */
1563 release_transaction(pmeta_msg->label);
1566 BTIF_TRACE_EVENT("%s: Passing received metamsg response to app. pdu: %s",
1567 __FUNCTION__, dump_rc_pdu(avrc_response.pdu));
1568 btif_rc_upstreams_rsp_evt((uint16_t)avrc_response.rsp.pdu, &avrc_response, pmeta_msg->code,
1573 /***************************************************************************
1577 ** Description Closes the AVRC interface
1581 ***************************************************************************/
1582 static void cleanup()
1584 BTIF_TRACE_EVENT("## %s ##", __FUNCTION__);
1586 if (bt_rc_callbacks)
1588 bt_rc_callbacks = NULL;
1590 memset(&btif_rc_cb, 0, sizeof(btif_rc_cb_t));
1592 BTIF_TRACE_EVENT("## %s ## completed", __FUNCTION__);
1595 /***************************************************************************
1597 ** Function cleanup_ctrl
1599 ** Description Closes the AVRC Controller interface
1603 ***************************************************************************/
1604 static void cleanup_ctrl()
1606 BTIF_TRACE_EVENT("## %s ##", __FUNCTION__);
1608 if (bt_rc_ctrl_callbacks)
1610 bt_rc_ctrl_callbacks = NULL;
1612 memset(&btif_rc_cb, 0, sizeof(btif_rc_cb_t));
1614 BTIF_TRACE_EVENT("## %s ## completed", __FUNCTION__);
1617 static bt_status_t send_passthrough_cmd(bt_bdaddr_t *bd_addr, uint8_t key_code, uint8_t key_state)
1619 tAVRC_STS status = BT_STATUS_UNSUPPORTED;
1620 #if (AVRC_CTLR_INCLUDED == TRUE)
1622 rc_transaction_t *p_transaction=NULL;
1623 BTIF_TRACE_DEBUG("%s: key-code: %d, key-state: %d", __FUNCTION__,
1624 key_code, key_state);
1625 if (btif_rc_cb.rc_features & BTA_AV_FEAT_RCTG)
1627 bt_status_t tran_status = get_transaction(&p_transaction);
1628 if(BT_STATUS_SUCCESS == tran_status && NULL != p_transaction)
1630 BTA_AvRemoteCmd(btif_rc_cb.rc_handle, p_transaction->lbl,
1631 (tBTA_AV_RC)key_code, (tBTA_AV_STATE)key_state);
1632 status = BT_STATUS_SUCCESS;
1633 BTIF_TRACE_DEBUG("%s: succesfully sent passthrough command to BTA", __FUNCTION__);
1637 status = BT_STATUS_FAIL;
1638 BTIF_TRACE_DEBUG("%s: error in fetching transaction", __FUNCTION__);
1643 status = BT_STATUS_FAIL;
1644 BTIF_TRACE_DEBUG("%s: feature not supported", __FUNCTION__);
1647 BTIF_TRACE_DEBUG("%s: feature not enabled", __FUNCTION__);
1652 static const btrc_interface_t bt_rc_interface = {
1653 sizeof(bt_rc_interface),
1655 get_play_status_rsp,
1656 NULL, /* list_player_app_attr_rsp */
1657 NULL, /* list_player_app_value_rsp */
1658 NULL, /* get_player_app_value_rsp */
1659 NULL, /* get_player_app_attr_text_rsp */
1660 NULL, /* get_player_app_value_text_rsp */
1661 get_element_attr_rsp,
1662 NULL, /* set_player_app_value_rsp */
1663 register_notification_rsp,
1668 static const btrc_ctrl_interface_t bt_rc_ctrl_interface = {
1669 sizeof(bt_rc_ctrl_interface),
1671 send_passthrough_cmd,
1675 /*******************************************************************************
1677 ** Function btif_rc_get_interface
1679 ** Description Get the AVRCP Target callback interface
1681 ** Returns btav_interface_t
1683 *******************************************************************************/
1684 const btrc_interface_t *btif_rc_get_interface(void)
1686 BTIF_TRACE_EVENT("%s", __FUNCTION__);
1687 return &bt_rc_interface;
1690 /*******************************************************************************
1692 ** Function btif_rc_ctrl_get_interface
1694 ** Description Get the AVRCP Controller callback interface
1696 ** Returns btav_interface_t
1698 *******************************************************************************/
1699 const btrc_ctrl_interface_t *btif_rc_ctrl_get_interface(void)
1701 BTIF_TRACE_EVENT("%s", __FUNCTION__);
1702 return &bt_rc_ctrl_interface;
1705 /*******************************************************************************
1706 ** Function initialize_transaction
1708 ** Description Initializes fields of the transaction structure
1711 *******************************************************************************/
1712 static void initialize_transaction(int lbl)
1714 pthread_mutex_lock(&device.lbllock);
1715 if(lbl < MAX_TRANSACTIONS_PER_SESSION)
1717 device.transaction[lbl].lbl = lbl;
1718 device.transaction[lbl].in_use=FALSE;
1719 device.transaction[lbl].handle=0;
1721 pthread_mutex_unlock(&device.lbllock);
1724 /*******************************************************************************
1725 ** Function lbl_init
1727 ** Description Initializes label structures and mutexes.
1730 *******************************************************************************/
1733 memset(&device,0,sizeof(rc_device_t));
1734 pthread_mutexattr_t attr;
1735 pthread_mutexattr_init(&attr);
1736 pthread_mutex_init(&(device.lbllock), &attr);
1737 pthread_mutexattr_destroy(&attr);
1738 init_all_transactions();
1741 /*******************************************************************************
1743 ** Function init_all_transactions
1745 ** Description Initializes all transactions
1748 *******************************************************************************/
1749 void init_all_transactions()
1752 for(txn_indx=0; txn_indx < MAX_TRANSACTIONS_PER_SESSION; txn_indx++)
1754 initialize_transaction(txn_indx);
1758 /*******************************************************************************
1760 ** Function get_transaction_by_lbl
1762 ** Description Will return a transaction based on the label. If not inuse
1763 ** will return an error.
1765 ** Returns bt_status_t
1766 *******************************************************************************/
1767 rc_transaction_t *get_transaction_by_lbl(UINT8 lbl)
1769 rc_transaction_t *transaction = NULL;
1770 pthread_mutex_lock(&device.lbllock);
1772 /* Determine if this is a valid label */
1773 if (lbl < MAX_TRANSACTIONS_PER_SESSION)
1775 if (FALSE==device.transaction[lbl].in_use)
1781 transaction = &(device.transaction[lbl]);
1782 BTIF_TRACE_DEBUG("%s: Got transaction.label: %d",__FUNCTION__,lbl);
1786 pthread_mutex_unlock(&device.lbllock);
1790 /*******************************************************************************
1792 ** Function get_transaction
1794 ** Description Obtains the transaction details.
1796 ** Returns bt_status_t
1797 *******************************************************************************/
1799 bt_status_t get_transaction(rc_transaction_t **ptransaction)
1801 bt_status_t result = BT_STATUS_NOMEM;
1803 pthread_mutex_lock(&device.lbllock);
1805 // Check for unused transactions
1806 for (i=0; i<MAX_TRANSACTIONS_PER_SESSION; i++)
1808 if (FALSE==device.transaction[i].in_use)
1810 BTIF_TRACE_DEBUG("%s:Got transaction.label: %d",__FUNCTION__,device.transaction[i].lbl);
1811 device.transaction[i].in_use = TRUE;
1812 *ptransaction = &(device.transaction[i]);
1813 result = BT_STATUS_SUCCESS;
1818 pthread_mutex_unlock(&device.lbllock);
1823 /*******************************************************************************
1825 ** Function release_transaction
1827 ** Description Will release a transaction for reuse
1829 ** Returns bt_status_t
1830 *******************************************************************************/
1831 void release_transaction(UINT8 lbl)
1833 rc_transaction_t *transaction = get_transaction_by_lbl(lbl);
1835 /* If the transaction is in use... */
1836 if (transaction != NULL)
1838 BTIF_TRACE_DEBUG("%s: lbl: %d", __FUNCTION__, lbl);
1839 initialize_transaction(lbl);
1843 /*******************************************************************************
1845 ** Function lbl_destroy
1847 ** Description Cleanup of the mutex
1850 *******************************************************************************/
1853 pthread_mutex_destroy(&(device.lbllock));
1856 /*******************************************************************************
1857 ** Function dev_blacklisted_for_absolute_volume
1859 ** Description Blacklist Devices that donot handle absolute volume well
1860 ** We are blacklisting all the devices that are not in whitelist
1862 ** Returns True if the device is in the list
1863 *******************************************************************************/
1864 static BOOLEAN dev_blacklisted_for_absolute_volume(BD_ADDR peer_dev)
1867 char *dev_name_str = NULL;
1868 int whitelist_size = sizeof(rc_white_addr_prefix)/sizeof(rc_white_addr_prefix[0]);
1870 for (i = 0; i < whitelist_size; i++) {
1871 if (rc_white_addr_prefix[i][0] == peer_dev[0] &&
1872 rc_white_addr_prefix[i][1] == peer_dev[1] &&
1873 rc_white_addr_prefix[i][2] == peer_dev[2]) {
1874 BTIF_TRACE_DEBUG("whitelist absolute volume for %02x:%02x:%02x",
1875 peer_dev[0], peer_dev[1], peer_dev[2]);
1880 dev_name_str = BTM_SecReadDevName(peer_dev);
1881 whitelist_size = sizeof(rc_white_name)/sizeof(char*);
1882 if (dev_name_str != NULL) {
1883 for (i = 0; i < whitelist_size; i++) {
1884 if (strcmp(dev_name_str, rc_white_name[i]) == 0) {
1885 BTIF_TRACE_DEBUG("whitelist absolute volume for %s", dev_name_str);
1891 BTIF_TRACE_WARNING("blacklist absolute volume for %02x:%02x:%02x, name = %s",
1892 peer_dev[0], peer_dev[1], peer_dev[2], dev_name_str);