Currently only keep func pointer for the followings:
- Invalid parameter (mesh btc & mesh stack)
- Out of memory (mesh btc & mesh stack)
- Unknown act (mesh btc)
- Invalid model user data (mesh stack)
- BT_DBG("%s", __func__) (mesh btc & mesh stack)
- A few other specific situations (buf ref debug, send status check)
Different bluetooth host has different behaviors, so it's better
to maintain a scan check mechanism of BLE Mesh itself.
Fixes an issue when only PB-GATT is enabled for node, which will
output a scan error log when the device is provisioned.
Update send_ttl mainly for server models. When a server model
receives a message, and the status is required to be replied
by the application, we need to set send_ttl to the msg context.
If send_ttl is not updated in btc, and the applcation does not
set the TTL either, then the status will be replied with TTL=0,
which may cause the client side (e.g. the phone App) failed to
receive the status.
Closes https://github.com/espressif/esp-idf/issues/5300
ctx values to cb_params for the mesh stack.
recv_rssi was not copied.
This means the rssi could not be read when receiving generic server messages using ble_mesh.
1.In the description of the ESP_API header file, it should be the event that the application layer needs to handle, not the BTA layer.
2.Fix name typo of BTA_GATTS_CREATE_SRVC_EVT event
Closes https://github.com/espressif/esp-idf/issues/5446
Also remove some redundant CONFIG_BLE_MESH_PROXY checks, because
when the following options are satisfied, the CONFIG_BLE_MESH_PROXY
option will be selected mandatorily.
Prevent a remote device from doing a Bluetooth Impersonation Attack
(BIAS) by:
- Preventing remote device to downgrade secure connection
feature mask. Secure connection feature mask should remain same or
increase to enabled in link key generation and authentication.
- Doing a mutual authentication during Legacy Authentication.
Signed-off-by: Chinmay Chhajed <chinmay.chhajed@espressif.com>
- Before updating the "beacon_sent" of a subnet, we need to check
if the subnet still exists, especially for a Provisioner.
- Fix a bug which will cause Provisioner failed to send Secure
Network Beacon if no device is provisioned
- This issue was introduced in the commit: a788e7cd3d
which updated the bt_hex() function incorrectly.
- And in bt_hex(), we use 2 for the two-dimensional array, because currently
at most two bt_hex() will be used at the same time. Also this will save
some DRAM compared with using 4.
Previously the model recv operation is a littl fuzzy.
With the changes, the model recv operation is splitted into:
- find op
- check app_idx
- check dst
- check length
- update info & handle message
Bugfix/collection of confirmed fixes from baidu project
Closes BT-826, BT-542, BCI-31, BCI-34, BT-840, and AUD-1857
See merge request espressif/esp-idf!8675
The transport segmented TX nack and seg_pending fields must be at least
6 bits to avoid overflow for 32 segment messages. This change rearranges
the seg_tx fields to gather all state flag fields in one byte, while
making the counter fields whole bytes.
Ensures that friend messages are enqueued, even if the packet is
received with an appkey is unknown to the friend. Previously, sdu_recv
would return EINVAL if the appkey was unknown, which would prevent the
lower transport layer from adding the packet to the friend queue. This
is irrelevant for the logic in lower transport, and should not be
returned as an error.
Device name will be reset when deinit mesh stack. If not
initializing device name during the next mesh stack init,
it will fail to set the device name when using bluedroid.
Since bt_mesh_friend_init() will only be invoked when
a device is provisioned or Provisioner is enabled, so
we add a flag to indicate if the friend functionality
is initialized in case deinit before initialization.
Old version of BLE Mesh has no device role storage, because
previously we only support storing mesh node info.
If the binary of the node is upgraded from old version to a
new version (support storing provisioner info), the mesh info
of the node will not be restored because mesh role does not
exist in the flash.
When fast provisioning is enabled, Provisioner shall not
ignore messages from the nodes whose addresses are not in
the provisioning database. Because other nodes which are
not provisioned by the Primary Provisioner will send node
address messages to the Primary Provisioner.
When using fast provisioning, the Provisioner functionality
will be enabled. Unicast addresses within the pre-allocated
range will be used for provisioning nodes. And during the
address assignment, the allocated unicast address will be
checked that if it's duplicated with other nodes addresses
and the Provisioner's own addresses.
So before starting using fast provisioning, we need to update
the Provisioner address.
Since the behavior of sending segmented messages has been
changed properly, the calculation of timeout value which
will be used when sending an acknowledged message by a
client model also needs to be updated.
Add mutex to protect some variables of the mesh segmented
messages.
Currently the timeout handler of mesh will be executed in
the btc task, while the received mesh messages will be
handled in the btu task. In case some variables are set to
NULL when handled in the btu task, meanwhile these variables
are also accessed in the timeout handler, so we add mutex to
protect these variables and related operations.
The publication context is checked for NULL in bt_mesh_model_publish()
however it was dereferenced before that. Move the assignment to
ctx.send_rel to the same place where other ctx members are set.
Split mesh_util.h into mesh_byteorder.h, mesh_compiler.h,
mesh_ffs.h and mesh_util.h based on the classification of
Zephyr, which will make further porting more clear.
The Friend queue uses the message SeqAuth to determine whether the
message is already in the queue. To facilitate this, the SeqAuth is
passed around as a pointer throughout the transport modules. In the
bt_mesh_ctl_send functions, this parameter is also exposed in the API,
but the internal usage is inconsistent and buggy. Also, no one actually
uses this parameter.
- Removes seq_auth param from bt_mesh_ctl_send, instead passing NULL
directly to the friend module, to enforce its addition to the queue.
- Makes the seq_auth pointer const throughout the friend module.
Changes the behavior of the message cache to optimize for cache
capacity. Previously, the message cache's primary function was to avoid
decrypting messages multiple times, although the cache's main function
in the spec is to avoid message rebroadcasting. Optimizing for minimal
decryption causes us to fill the network cache faster, which in turn
causes more cache misses, potentially outweighing the advantage.
Now stores src + seq in message cache instead of field hash value. This
cuts cache size in two, while including more of the sequence number than
before.
Adds messages to the cache only after the packet is successfully
decrypted. This reduces noise in the cache, and ensures that no
invalid deobfuscations are added.
Additionally, this fixes a bug where multiple calls to net_decrypt with
the same packet failed, as the message cache found its own entry from
the previous call.
Implements several changes to the transport layer segmented tx to
improve group message performance:
- Moves retransmit counter to tx context instead of per packet. As every
unacked packet is sent every retransmit, the retransmit counters would
be the same in each segment. This makes it easier to control progress.
- Delays the scheduling of the retransmit until the completion of the
last segment by adding a seg_pending counter. This is essentially the
same as the old behavior, except that the old behavior might retrigger
the sending before all segments are finished if the advertising is
slow.
- Allows the group transmits to stop as soon as all retransmits have
been exhausted, instead of timing out waiting for acks that won't
come. This allows group tx to finish without error.
- Fixes a bug where a failed TX would block IV update.
- Cancels any pending transmissions of acked segments.
- Reduces log level for several common group tx scenarios that aren't
erronous.
Backport of https://github.com/apache/mynewt-nimble/pull/724
Mesh spec 1.0.1 changes proxy disabling behavior to only affect the
relaying from proxy nodes. Previously, disabling proxy would shut down
all proxy and node activity.
Tweaks from the original commit:
- Removed redundant call to bt_mesh_adv_update() in gatt_proxy_set()
- Removed invalid ref to 4.2.11.1 in node_identity_set()
---
According to Mesh Profile Spec 1.0.1, Section 4.2.11:
"If the Proxy feature is disabled, a GATT client device can connect
over GATT to that node for configuration and control. Messages from
the GATT bearer are not relayed to the advertising bearer."
Moreover some notes have been removed from the spec compared to
version 1.0:
Mesh Profile Spec 1.0, Section 4.2.11:
"Upon transition from GATT Proxy state 0x01 to GATT Proxy state 0x00
the GATT Bearer Server shall disconnect all GATT Bearer Clients."
"The Configuration Client should turn off the Proxy state as the last
step in the configuration process."
Mesh Profile Spec 1.0, Section 4.2.11.1:
"When the GATT Proxy state is set to 0x00, the Node Identity state
for all subnets shall be set to 0x00 and shall not be changed."
Until now the choice of reliable sending (segmented messages with
acks) was implicitly dependent on the size of the payload. Add a new
member to the bt_mesh_model_pub to force using segment acks even when
the payload would fit a single unsegmented message.
When PB-GATT support has been enabled the provisioning code "borrows"
the buffer from the proxy code. However, the way that initialization
was happening the proxy buffers were initialized only after
provisioning initialization, resulting in a corrupted buffer with
buf->data pointing to NULL. Reorder the initialization calls so that
proxy is done first and provisioning only after it.
Allow models to skip a periodic publish interval by returning an error
from the publish update callback.
Previously, an error return from publish update would cancel periodic
publishing. This can't be recovered from, and as such, no valid model
implementation could return an error from this callback, and there was
no way to skip a periodic publish.
The function bt_mesh_ctl_send() used to support maximum length of
11 bytes. The segmentation complies with the BLE Mesh Standard.
The ack is disabled in case of non unicast address.
Previously only mesh node info is supported to be stored
in flash. So when trying to reset the node, we only need
to judge if the BLE_MESH_VALID flag is set.
Currently we support storing both node & Provisioner info
in flash, when trying to erase the node info from flash,
the BLE_MESH_NODE flag will be checked. So we need to set
bt_mesh.flags to 0 when all the erase operations are done.
- Adds HID Host support in Buedroid
- Adds BLE HID Host and Device support
- Adds some general HID utilities and definitions to help integrate with other stacks and native USB
During BLE Mesh Provisioner initialization, the stack will restore
the nodes information if settings storage is enabled.
Previously when a failure happens (e.g. found the same uuid) during
the restore procedure, the information of the following nodes will
not be restored and error will be directly returned.
But this will introduce some problem with user experience, because
some newly provisioned nodes information will not be restored and
Provisioner will not be able to control those nodes.
So we change the operation here, when a failure happens during the
restore procedure, Provisioner will only ignore the information of
the current node and continue restoring other nodes information.
With this change, if a Provisioner has provisioned the maximum
number of nodes, it can still report the unprovisioned device
beacon from other nodes to the application layer. And this will
be more reasonable compared with the previous implementation.
Previously when the node array of Provisioner is full, no beacon
from unprovisioned devices will be reported, only some warning
logs will be given.
Previously only check the node address when it is assigned by the
application layer. Here we also check the address when the address
is allocated internally. And this will be useful when some mesh
internal tests are performed.
Previously the BLE_MESH_MAX_STORED_NODES option is added for
internal mesh test, which will be a little confusing for the
users to understand.
Here we remove this option, instead the BLE_MESH_MAX_PROV_NODES
will be used for all the cases. For mesh internal test, when
the test function is called to add some nodes info, the info
will be stored in the array of provisioned nodes directly.
The replay protection list of Provisioner should be at least equal
to the number of nodes with the precondition that each node contains
only one element.
The help information of replay protection list is updated, and the
maximum number of nodes for Provisioner is adjusted based on the
replay protection list size.
Using the ble mesh white list test functions, a node can choose to
only receive mesh messages from a specific node and relay the
messages for it. Messages from other nodes will be ignored.
1. Add an API to set Provisioner static oob value
2. Add an API to deinit BLE Mesh stack
3. Add an API to set Provisioner unicast address
4. Add an API to provision devices with fixed address
5. Add an API to store node composition data
6. Add an API to get node with device uuid
7. Add an API to get node with unicast address
8. Add an API to delete node with device uuid
9. Add an API to delete node with unicast address
10. Add an API for Provisioner to update local AppKey
11. Add an API for Provisioner to update local NetKey
12. Support Provisioner persistent functionality
13. Fix Provisioner entering IV Update procedure
14. Fix an issue which may cause client failing to send msg
15. Use bt_mesh.flags to indicate device role
16. Remove several useless macros
17. Callback RSSI of received mesh provisioning packets
18. Modify the Provisioner disable function
19. Change some log level from debug to info
20. Add parameters to Provisioner bind AppKey completion event
21. Fix node ignoring relay messages issue
22. Support using a specific partition for BLE Mesh
23. Fix compile warning when proxy related macros are disabled
24. Clean up BLE Mesh stack included header files
25. NULL can be input if client message needs no parameters
26. Fix compile warning when BT log is disabled
27. Initilize BLE Mesh stack local variables
28. Support using PSRAM for BLE Mesh mutex, queue and task
29. Add a menuconfig option to enable using memory from PSRAM
30. Clean up sdkconfig.defaults of BLE Mesh examples
1. Bugfix for AG audio crash (change the return position)
2. Fix the error macro name and error return in hfp_hf demo
3. Fix the annotation error using UTF-8 ' (from Github)
4. Change or remove the log in SCO related code region.
5. Correct error of introduction of a function.
After this commit, global interrupts will be disabled before taking
current time for scheduling further bluetooth events. Earlier disabling
interrupts was taking some time because of which WiFi events were
interrupting in current bluetooth scheduling.
Signed-off-by: Chinmay Chhajed <chinmay.chhajed@espressif.com>
- Add menuconfig option for NimBLE host flow control
- Include changes in `blecent` example from upstream PR!702
- add ble_hs_lock in ble_gap_unpair Upstream PR!584
- ble_hs_hci_rx_evt, upstream PR!738
Closes https://github.com/espressif/esp-idf/issues/4243
The NimBLE host buffers that consume a significant amount of memory are
now allocated dynamically.
The advantage is that, the memory can be reclaimed in cases where BLE
is turned off and not required for the current boot cycle
1. Improve WiFi throughput in some Classic BT scienarios(idle, inquire scan,
connected, sniff, a2dp pause, etc).
2. Support WiFi + Classic BT + BLE mesh coexistence scienario.
3. Improve WiFi scan and connect succeed ratio in coexistence scienario.
4. Do not support to choose software coexistence preference anymore for it is
determined according to coexistence scienario automatically.
components/lwip: increase TCP send buffer and receive window limitation when TCP window scale is enabled
components/ble_mesh: Fix some bugs about ble mesh
1. fix send acl pkt after ble have sent terminate ind modify min adv interval to 10ms.
The upper transport layer is using big endian ordering. The
PreviousAddress field of a Friend Request message should therefore
be converted to native endianess using sys_cpu_to_be16().
If the duration to publish is roughly the same as the period, we might
end up with elapsed == period, which returns 0 and cancel the periodic
publication. Instead 1 should be returned, just like when the elapsed
time is greater than the period.
Previously the FastPeriodDivisor value was introduced to the model
publication struct. Based on the way it was grouped it seems the
intention was to fit it within the same octet as other bit fields,
but it actually makes the octet overflow by one bit. This ends up
creating another u8_t variable which in turn adds 24 bits of padding
after it.
To keep the size of the struct as compact as possible, group the flag
together with the key index, since that only requires 12 bits. Some
care is needed here, since the mesh stack does have special internal
key index values that require more than 12 bits such as
BLE_MESH_KEY_UNUSED and BLE_MESH_KEY_DEV. In this case restricting
ourselves to 12 bits is fine since the value in the model publication
struct follows 1:1 the value received in the Config Model Publication
Set message, and there the parameter is defined to be exactly 12 bits.
For Low Power node and Proxy Server, the two features
depend on BLE_MESH_NODE in Kconfig.in, here in the
stack there is no need to judge if CONFIG_BLE_MESH_NODE
is enabled.
According to Mesh Spec 3.4.5.3, a node shall implement a local
network interface. And here we limit the situation just based
on the spec, and Provisioner directly sending the msg without
passing through the local network interface.
The 16-bit format group addresses will be stored,
but we don't store (or restore) the virtual label UUIDs,
i.e. after a power cycle the 16-bit group addresses
would be meaningless.
Creates macros for determining model message lengths based on opcode,
payload length and MIC size. Also adds macro wrapping
NET_BUF_SIMPLE_DEFINE to serve the most common use case.
Re-encrypts single-segment application messages when the network seqnum
has changed, to avoid encrypting messages with different seqnums in
network and transport. This operation is only required for unsegmented
messages, as segmented messages don't need to use the same seqnum in
network.
Reinstates the special adv data for friend messages to store the app key
index.
Stores friend queue packets unencrypted, removing any out-of-order
issues caused by seqnum allocation. Also moves as much of the metadata
storage as possible into the packet, allowing us to free up some bytes
of net_buf user data for friend packets.
esp_common/esp_compiler: renamed esp_macros file to a more specific one
esp_common/esp_compiler: removed CONTAINER_OF macro, it was a duplicate
components/freertos: placed likely macros around port and critical sections
component/freertos: placed likely macros on lists module
components/freertos: placed unlikely macros inside of assertion points, they likely wont fail
components/freertos: added likely macros on queue modules
FreeRTOS queues are one of most hot code path, because to queues itself tend to
be used a lot by the applications, besides that, queues are the basic primitive
to form both mutexes and semaphores, The focus here is to place likely
macros inside lowest level send and receive routines, since they're common
from all kobjects: semaphores, queues, mutexes and FR internals (like timer queue)
components/lwip: placed likely/unlikey on net-interfaces code
components/fatfs: added unlikely macros on disk drivers code
components/spiffs: added unlikely macros on low level fs driver
components/freertos: added likely/unlikely macros on timers and ticker
freertos/event_group: placed likely/unlikely macros on hot event group code paths
components/sdmmc: placed likely / unlikely macros on lower level path of sdmmc
components/bt: placed unlikely macros around bt HCI functions calling
components/lwip: added likely/unlikely macros on OS port code section
components/freertos: fix code style on tick handler
When node is being reset, the init functions of each sig-defined
models will be invoked again, this will cause memory leak because
some model internal data will be allocated again.
Hence before trying to allocate memory for them, we add some check
to make sure no memory has been allocated previously.
And for client model, when the init functions are invoked again,
we will clear the list items.
Before handling status message, client models need check if the
corresponding timer has expired. And if timeout happens, the
status message will be treated as a publish message.
esp32s2beta: Merge support to master
Closes IDF-513, IDF-756, IDF-758, IDF-999, IDF-753, IDF-749, IDF-754, IDF-840, and IDF-755
See merge request espressif/esp-idf!6100
1. Since BLE full-scan feature for BLE mesh change the controller code cause this problem,
it cause coex semaphore take in "interrupt disable", then it may cause task schedule
and cause crash in freertos
2. Fix newlib lock ISR context and critical section check
3. Fix bt controller ISR context and critical section check
- Minor fix to remove while loop & delay while transmitting data from
host to controller.
- Add menuconfig option to enable predefined public-private keypair for
debugging (Vol. 3, Part H, 2.3.5.6.1)
- Additional menuconfig option to select either mbedTLS or Tinycrypt from NimBLE.
- Addition of `CMAC` and `ECP_RESTARTABLE` to mbedTLS menuconfig option and
`esp_config.h`.
- Changes NimBLE `component.mk` and `CMakeLists.txt` to support mbedTLS option.
- Minor changes to `app_mesh.c` application.
1. Fix high beacon and broadcast packets loss ratio of WiFi to make
MDNS test pass.
2. Improve stability of WiFi performance with a little
sacrifice of throughput.
3. Improve BLE advertising and connection performance with dynamic
priority. It sacrifices a little WiFi throughput, but achieves balance
between WiFi and Bluetooth.
- 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.
- Add option to configure stack size of NimBLE host task, update NimBLE
submodule for the same.
- Change max concurrent connections supported to 9 inline with controller.
This problem may cause HCI send command timeout.
When host call VHCI api to do btdm_wakeup_request, then controller
wakeup process will be handled in ISR and controller task context.
As host task priority is lower than controller task and ISR,
it will cause an incorrect behavior that before VHCI take the
rx_flow_on_semaphore, controller sleep again, then VHCI cannot take
the semaphore and has to wait the automatic wakeup.
1. BLE Mesh Core
* Provisioning: Node Role
* Advertising and GATT bearer
* Authentication OOB
* Provisioning: Provisioner Role
* Advertising and GATT bearer
* Authentication OOB
* Networking
* Relay
* Segmentation and Reassembly
* Key Refresh
* IV Update
* Proxy Support
* Multiple Client Models Run Simultaneously
* Support multiple client models send packets to different nodes simultaneously
* No blocking between client model and server
* NVS Storage
* Store Provisioning Data of BLE Mesh Nodes in Flash
2. BLE Mesh Applications
* BLE Mesh Node & Provisioner
* Node Example
* Provisioner Example
* Node + Generic OnOff Client Example
* Fast Provisioning
* Vendor Fast Prov Server Model
* Vendor Fast Prov Client Model
* Examples
* Wi-Fi & BLE Mesh Coexistence
* Example
* BLE Mesh Console Commands
* Example
3. BLE Mesh Models
* Foundation Models
* Configuration Server Model
* Configuration Client Model
* Health Server Model
* Health Client Model
* Generic Client Models
* Generic OnOff Client
* Generic Level Client
* Generic Location Client
* Generic Default Transition Timer Client
* Generic Power OnOff Client
* Generic Power Level Client
* Generic Battery Client
* Generic Property Client
* Generic Server Models
* Generic OnOff Server (Example)
* Lighting Client Models
* Light Lightness Client
* Light CTL Client
* Light HSL Client
* Light xyL Client
* Light LC Client
* Sensor Client Model
* Sensor Client
* Time and Scenes Client Models
* Time Client
* Scene Client
* Scheduler Client
1. remove fixed_queue_try_dequeue and fixed_queue_try_enqueue,
2. add timeout parameter for fixed_queue_enqueue and fixed_queue_dequeue
3. replace where call fixed_queue_try_dequeue/enqueue to fixed_queue_dequeue/enqueue(..., timeout = 0)
4. replace where call fixed queue_enqueue/dequeue to fixed_queue_enqueue/dequeue( ..., timeout = FIXED_QUEUE_MAX_TIMEOUT)
5. modify the blocking_type of osi_thread_post to timeout.
!4452 used setting LINK_LIBRARIES and INTERFACE_LINK_LIBRARIES to link
components built under ESP-IDF build system. However, LINK_LIBRARIES does
not produce behavior same as linking PRIVATE. This MR uses the new
signature for target_link_libraries directly instead. This also moves
setting dependencies during component registration rather than after all
components have been processed.
The consequence is that internally, components have to use the new
signature form as well. This does not affect linking the components to
external targets, such as with idf_as_lib example. This only affects
linking additional libraries to ESP-IDF libraries outside component processing (after
idf_build_process), which is not even possible for CMake<v3.13 as
target_link_libraries is not valid for targets not created in current
directory. See https://cmake.org/cmake/help/v3.13/policy/CMP0079.html#policy:CMP0079
Using xxx_periph.h in whole IDF instead of xxx_reg.h, xxx_struct.h, xxx_channel.h ... .
Cleaned up header files from unnecessary headers (releated to soc/... headers).
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
This MR removes the common dependency from every IDF components to the SOC component.
Currently, in the ``idf_functions.cmake`` script, we include the header path of SOC component by default for all components.
But for better code organization (or maybe also benifits to the compiling speed), we may remove the dependency to SOC components for most components except the driver and kernel related components.
In CMAKE, we have two kinds of header visibilities (set by include path visibility):
(Assume component A --(depends on)--> B, B is the current component)
1. public (``COMPONENT_ADD_INCLUDEDIRS``): means this path is visible to other depending components (A) (visible to A and B)
2. private (``COMPONENT_PRIV_INCLUDEDIRS``): means this path is only visible to source files inside the component (visible to B only)
and we have two kinds of depending ways:
(Assume component A --(depends on)--> B --(depends on)--> C, B is the current component)
1. public (```COMPONENT_REQUIRES```): means B can access to public include path of C. All other components rely on you (A) will also be available for the public headers. (visible to A, B)
2. private (``COMPONENT_PRIV_REQUIRES``): means B can access to public include path of C, but don't propagate this relation to other components (A). (visible to B)
1. remove the common requirement in ``idf_functions.cmake``, this makes the SOC components invisible to all other components by default.
2. if a component (for example, DRIVER) really needs the dependency to SOC, add a private dependency to SOC for it.
3. some other components that don't really depends on the SOC may still meet some errors saying "can't find header soc/...", this is because it's depended component (DRIVER) incorrectly include the header of SOC in its public headers. Moving all this kind of #include into source files, or private headers
4. Fix the include requirements for some file which miss sufficient #include directives. (Previously they include some headers by the long long long header include link)
This is a breaking change. Previous code may depends on the long include chain.
You may need to include the following headers for some files after this commit:
- soc/soc.h
- soc/soc_memory_layout.h
- driver/gpio.h
- esp_sleep.h
The major broken include chain includes:
1. esp_system.h no longer includes esp_sleep.h. The latter includes driver/gpio.h and driver/touch_pad.h.
2. ets_sys.h no longer includes soc/soc.h
3. freertos/portmacro.h no longer includes soc/soc_memory_layout.h
some peripheral headers no longer includes their hw related headers, e.g. rom/gpio.h no longer includes soc/gpio_pins.h and soc/gpio_reg.h
BREAKING CHANGE
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.
4. 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.
5. Implement callback events for SetAbsoluteVolume command indication on TG.
6. 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).
7. Add feature bit mask in parameter of callback event ESP_AVRC_CT_REMOTE_FEATURES_EVT for peer feature information got from SDP.
8. Add API and callback event to AVRCP CT to retrieve remote TG's supported notification event capabilities.
9. Modify data type for parameter of callback event ESP_AVRC_CT_CHANGE_NOTIFY_EVT.
10. Change AVRCP version from 1.3 to 1.4 for compatibility cause in using AbsoluteVolume feature.
11. Modify local AVRCP device to be category 1 as CT and category 2 as TG that applies to bluetooth headphones or speakers.
12. Update the use of AVRCP APIs and events in the two examples: a2dp_sink and a2dp_gatts_coex, which include the demo of volume control and notification.
The current API is insufficient to allow the users to set different combinations of connection and discoverable mode
Users should be able to choose the device modes independently:
1. Connectable-
i. Non-connectable mode
ii. Connectable mode
2. Discoverable-
i. Non-discoverable mode
ii. Limited discoverable mode
iii. General discoverable mode
