The sync timeout is in 10 ms units. The sync_create_timeout_ms variable
already takes into account that we want to have a timeout of at least
7 events.
Signed-off-by: Rubin Gerritsen <rubin.gerritsen@nordicsemi.no>
The periodic advertiser samples use a periodic advertising interval
in the range of 1 to 1.2 seconds.
Previously the sync timeout of 1.7 seconds would cause the sync to be
lost after failing to receive a single periodic advertising packet.
This change therefore aims to improve the user experience.
Signed-off-by: Rubin Gerritsen <rubin.gerritsen@nordicsemi.no>
As both C and C++ standards require applications running under an OS to
return 'int', adapt that for Zephyr to align with those standard. This also
eliminates errors when building with clang when not using -ffreestanding,
and reduces the need for compiler flags to silence warnings for both clang
and gcc.
Most of these changes were automated using coccinelle with the following
script:
@@
@@
- void
+ int
main(...) {
...
- return;
+ return 0;
...
}
Approximately 40 files had to be edited by hand as coccinelle was unable to
fix them.
Signed-off-by: Keith Packard <keithp@keithp.com>
Currently, the sync timeout means the device will timeout
straight after it syncs. This means we cannot send a sync
transfer as we are no longer synced.
Signed-off-by: Sean Madigan <sean.madigan@nordicsemi.no>
As of today <zephyr/zephyr.h> is 100% equivalent to <zephyr/kernel.h>.
This patch proposes to then include <zephyr/kernel.h> instead of
<zephyr/zephyr.h> since it is more clear that you are including the
Kernel APIs and (probably) nothing else. <zephyr/zephyr.h> sounds like a
catch-all header that may be confusing. Most applications need to
include a bunch of other things to compile, e.g. driver headers or
subsystem headers like BT, logging, etc.
The idea of a catch-all header in Zephyr is probably not feasible
anyway. Reason is that Zephyr is not a library, like it could be for
example `libpython`. Zephyr provides many utilities nowadays: a kernel,
drivers, subsystems, etc and things will likely grow. A catch-all header
would be massive, difficult to keep up-to-date. It is also likely that
an application will only build a small subset. Note that subsystem-level
headers may use a catch-all approach to make things easier, though.
NOTE: This patch is **NOT** removing the header, just removing its usage
in-tree. I'd advocate for its deprecation (add a #warning on it), but I
understand many people will have concerns.
Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
Change implementation of cte_recv_cb to print information about IQ
samples type. The changed code is ready for use of 8 bits and 16 bits
signed integer IQ samples. User has sample level option to enable
printing IQ samples.
Signed-off-by: Piotr Pryga <piotr.pryga@nordicsemi.no>
In order to bring consistency in-tree, migrate all samples to the use
the new prefix <zephyr/...>. Note that the conversion has been scripted:
```python
from pathlib import Path
import re
EXTENSIONS = ("c", "h", "cpp", "rst")
for p in Path(".").glob("samples/**/*"):
if not p.is_file() or p.suffix and p.suffix[1:] not in EXTENSIONS:
continue
content = ""
with open(p) as f:
for line in f:
m = re.match(r"^(.*)#include <(.*)>(.*)$", line)
if (m and
not m.group(2).startswith("zephyr/") and
(Path(".") / "include" / "zephyr" / m.group(2)).exists()):
content += (
m.group(1) +
"#include <zephyr/" + m.group(2) +">" +
m.group(3) + "\n"
)
else:
content += line
with open(p, "w") as f:
f.write(content)
```
Signed-off-by: Gerard Marull-Paretas <gerard.marull@nordicsemi.no>
There was a bug it periodic advertising sync termination handling.
If a sync was terminated before sync established was reported,
for example sync may be filtered out by CTE type, then sample
will wait until sync_create_timeout_ms is reached.
Also sem_per_sync_lost semaphore is given in term_cb.
Result of the bug is next time a sync is established, CTE sampling
is enabled, sample starts waiting for periodic sync lost and
immediately ends waiting because sem_per_sync_lost is given.
Scan is restarted and already synchronized sync is terminated.
Correct behavior is, when term_cb is executed sem_per_sync_lost
may be given only if sync established was already reported.
Also sample must not wait for sem_per_sync if sync is terminated
due to wrong CTE type. It can end wait immediately.
Signed-off-by: Piotr Pryga <piotr.pryga@nordicsemi.no>
Direction finding samples had dependency on KConfig option defined
in Controller. That caused a problem for split builds where
an application and host are not part of the same binary as
controller. The code dependend on the Kconfig option
was always disabled.
To fix that issue new Kconfig options were introduced to
Host. The dependency is removed. Unwanted features may stil be
disabled and samples binaier will be smaller.
The commit aligns all direction finding samples code.
Signed-off-by: Piotr Pryga <piotr.pryga@nordicsemi.no>
Periodic advertising synchronization create had a timeout set
to fixed value of 10 seconds. BT 5.3 Core specification defines
synchronization timeout as 6 consecutive periodic advertising
events. When advertiser set the periodic interval to be more than
1.6 second it was possible the application timeout is reached
before time allowed by BT Core specification.
Changed implementation of timeout to depend on the periodic
advertising interval.
Signed-off-by: Piotr Pryga <piotr.pryga@nordicsemi.no>
Host receive thread has small default stack size.
Attempt to convert data from binany to string requires
large array. Allocation of such array on stack could
cause stack overflow.
To limit the scope of the array and avoid stack overflow
the array is changed to be static local variable in a function.
Also the array has been prepared to accept max advertising
data sieze of 1650 bytes.
Signed-off-by: Piotr Pryga <piotr.pryga@nordicsemi.no>
The CTE type is used in two ways by HCI layer:
1) single value representing particular CTE type: AoA, AoD 1 us,
AoD 2 us
2) bit-filed where bits 0-2 represent particular CTE types AoA
AoD 1 us, AoD 2 us
The bit-field is used to inform Controller about allowed types
of CTE, hence single value carries more than one value.
To avoid confusion between these use cases in code that refers
to case 1) all named cte_type (singular form). For case 2)
cte_types (plural form) is used.
There is an enumeration that is used for both cases:
bt_df_cte_type. For cte_type only single value from the
enumeration may be assigned to variable except
BT_DF_CTE_TYPE_NONE and BT_DF_CTE_TYPE_ALL.
For cte_types all enum members may be used. Ocasionally
BT_DF_CTE_TYPE_NONE may be excluded. If that is true,
it is described in code documentation.
Thanks to that applications are released from requirement
to include hci.h header file.
Signed-off-by: Piotr Pryga <piotr.pryga@nordicsemi.no>
Enable filtering of periodic advertisements to synchronize
with advertisenemts that include CTE.
Signed-off-by: Piotr Pryga <piotr.pryga@nordicsemi.no>
Add an application that uses Direction Finding API for reception
and sampling of CTE in connectionless mode (periodic adverising PDUs).
Signed-off-by: Piotr Pryga <piotr.pryga@nordicsemi.no>
