1. Add more notification events to the enum according to the event list in AVRCP specification.
2. Add API and callback events for basic AVRCP target functionalities to do init, deinit, callback-registration, connection status indication.
3. Implement API to set/get supported PASSTHROUGH command on local AVRCP TG, implement callback events for remote passthrough command indication.
6. Implement API to set/get supported notification eventIDs on local AVRCP TG, implement API to send event notifications to remote CT. \
Currently supported event in TG only includes ESP_AVRC_RN_VOLUME_CHANGE(0xd), which can be extended in later commits.
7. Implement callback events for SetAbsoluteVolume command indication on TG.
8. Add limitation of event_ids supported in RegisterNotification command in CT. The supported event_ids include: \
ESP_AVRC_RN_PLAY_STATUS_CHANGE(0x1), ESP_AVRC_RN_TRACK_CHANGE(0x2), ESP_AVRC_RN_PLAY_POS_CHANGE(0x5), ESP_AVRC_RN_VOLUME_CHANGE(0xd).
9. Add feature bit mask in parameter of callback event ESP_AVRC_CT_REMOTE_FEATURES_EVT for peer feature information got from SDP.
10. Add API and callback event to AVRCP CT to retrieve remote TG's supported notification event capabilities.
11. Modify data type for parameter of callback event ESP_AVRC_CT_CHANGE_NOTIFY_EVT.
12. Change AVRCP version from 1.3 to 1.4 for compatibility cause in using AbsoluteVolume feature.
13. Modify local AVRCP device to be category 1 as CT and category 2 as TG that applies to bluetooth headphones or speakers.
14. Update the use of AVRCP APIs and events in the two examples a2dp_sink a2dp_gatts_coex, which includes the demo of volume control and notification.
- Backport(v3.3) of IDF MR!6122
- Modifies `smp_utils.c` to add check on encryption key size received from
peer.
- Modifies `esp_ble_gap_set_security_param` API to add minimum encryption key
size requirement.
1. modify the limit of frames to send to avoid dropping packet on A2DP source due to TX data queue overflow
2. reduce the A2DP source data queue size in order to achieve faster control respnonse
Fixes: https://github.com/espressif/esp-idf/issues/2811
The warning print "NULL value" is only kept for event
BTC_GATTS_ACT_SET_ATTR_VALUE as this can be useful in case user forgets
to set attribute value
Signed-off-by: Hrishikesh Dhayagude <hrishi@espressif.com>
refence to https://github.com/espressif/esp-idf/issues/2284
Before fixing, the tx power in adv data is always 0xeb(-21dbm).
restriction:
If change BLE advertising TX power, please call esp_ble_gap_config_adv_data()
after BLE adv TX power changed.
Later, will implement set BLE advertising TX power via HCI, then the
TX power value in adv data can be update automatically after BLE adv
TX power changed.
AVRCP connection binds to A2DP in current implementation, despite the two profiles are\
independent according to specification. AVRCP connection is not necessary to set-up \
if A2DP connection fails to establish
In pevious implementation, A2DP sink will register an A2DP source Stream End Point(SEP) although the SEP is not\
supposed to be used. Now remove the unused SEP for source so that only one role of A2DP can be supported at one
time. Service record in local SDP server only includes at most one service for A2DP sink role or source
