Add new radio platform APIs:
* otPlatRadioGetSupportedChannelMask(); // supported channel mask: the device is allowed to be on;
* otPlatRadioGetPreferredChannelMask(); // preferred channel mask: the device prefers to form on.
Implement some default radio platform APIs.
Add spinel property `SPINEL_PROP_PHY_CHAN_PREFERRED` to retrieve Preferred ChannelMask.
This commit changes how the objects in OpenThread access each other.
It adds a template `Get<Type>()` method in `InstanceLocator`. This
method returns a reference to a given `Type` object belonging to the
OpenThread instance (e.g. `Get<MeshForwarder>()` returns a reference
to `MeshForwarder` object on the OpenThread instance). The
`InstanceLocator` is used as base class of all OpenThread classes so
every class can easily access any other object. This commit also
changes how the main instance is retrieved in `InstanceLocator` for
the single-instance case. The method `GetInstance()` directly uses the
raw buffer `gInstanceRaw`. This change helps make the `GetInstance()`
and in turn all `Get<Type>()` methods in-line. This commit also
removes the existing getters across all classes to use the new
`Get<Type>()` model.
Current implementation of GetOwner function for single-instance CLI
assumed that `cli_uart` backend is used. This caused application
crash when different backend was used and `cli_uart` was not
initialized (and in result sUartServer static pointer was not set).
This commit fixes the issue by moving static CLI Server pointer and
the mInterpreter field to the to the base Server class and providing
getter method to obtain the Interpreter instance. With this approach,
any backend derived from the Server class will be able to initialize
the static pointer and will provide a valid reference to the
Interpreter class instance.
Signed-off-by: Robert Lubos <robert.lubos@nordicsemi.no>
This commit refines Coap::Header into Coap::Message to avoid declaring
the big Coap::Header in stack which was causing problems in low-memory
systems such as CC2538.
A UDP reserves 56 bytes by default, which will not be used before an
outbound message goes down to transport layer and after an inbound
message is delievered to CoAP agent. To get better performance, this commit
utilizes these reserved bytes of cache basic header of CoAP message
including CoAP version, code, message ID and token. These cached data
are parsed when CoAP agent receives a CoAP message and are dumped into
the correct place of a CoAP Message before sending by lower layer.
To make sure there is enough reserved bytes for an inbound message, This
commit removes headers in UDP layer before delivering a ot::Message to
handlers.
This commit updates the `HdlcInterface` and `RadioSpinel` to use the
new HDLC buffer model. In particular, for received spinel frames the
decoder uses an `Hdlc::MultiFrameBuffer` which is capable of storing
multiple frames in a FIFO queue manner.
With this model, the received and decoded spinel frames are directly
placed in the FIFO buffer. This allows `RadioSpinel` code during
`WaitResponse()` (when waiting for specific Spinel response frame) to
simply save/keep a notification frame in the queue buffer (without
requiring to copy the frame) so that it can read and process the
saved frame later. If a received frame can be processed at the time,
the frame is then simply discarded from the queue buffer.
This commit introduces sub-MAC layer (class `Mac::SubMac`) in
OpenThread implementing a subset of IEEE802.15.4 MAC primitives which
are shared by both MAC layer (in FTD/MTD modes) and Raw Link (Radio
only mode).
The sub-MAC layer handles the following (if not provided by radio
platform):
- Ack timeout for frame transmission,
- CSMA backoff logic,
- Frame re-transmissions,
- Energy scan on a single channel and RSSI sampling.
It also act as the interface (to radio platform) for setting/getting
radio configurations such as short or extended addresses and PAN Id.
In addition, this commit contains following improvements in `Mac`:
- The implementation of `STAY_AWAKE_BETWEEN_FRAGMENTS` (delay sleep)
feature is simplified by adding a new state variable tracking if
sleep is being delayed and canceling sleep delay on start of any
operation.
- Member variables in `Mac` class are re-ordered to avoid alignment
gaps.
- `Mac` timers are combined into one which is used for Active Scan,
Data Poll timeout, and delaying sleep.
It introduces a way that user can define product specific configuration
for OpenThread build in Android Environment.
Also ensure that ot-cli and ot-ncp use the same mbedtls config with
ot-core.
This commit adds a new class `HdlcInterface` under POSIX App which
performs HDLC encoding/decoding and read/write operations on the
interface to Radio Co-Processor (RCP). `RadioSpinel` is updated to
use the new class.
Shu Chen