Currently there is no way to distinguish between a caller
explicitly asking for a semaphore with a limit that
happens to be `UINT_MAX` and a semaphore that just
has a limit "as large as possible".
Add `K_SEM_MAX_LIMIT`, currently defined to `UINT_MAX`, and akin
to `K_FOREVER` versus just passing some very large wait time.
In addition, the `k_sem_*` APIs were type-confused, where
the internal data structure was `uint32_t`, but the APIs took
and returned `unsigned int`. This changes the underlying data
structure to also use `unsigned int`, as changing the APIs
would be a (potentially) breaking change.
These changes are backwards-compatible, but it is strongly suggested
to take a quick scan for `k_sem_init` and `K_SEM_DEFINE` calls with
`UINT_MAX` (or `UINT32_MAX`) and replace them with `K_SEM_MAX_LIMIT`
where appropriate.
Signed-off-by: James Harris <james.harris@intel.com>
Force sx12xx modems into sleep mode on boot. This is the default state
of the modem when not being used due to the TX/RX complete callbacks.
This reduces current consumption by 600uA before the modems are used
for the first time.
As sleep is the normal state after TX/RX when using the LoRa API, it is
garaunteed that this will not change the behaviour of application code.
LoRaWAN starts by calling Radio.Init(), which resets the modem, so any
sleep configuration we do here is discarded.
Fixes#31567.
Signed-off-by: Jordan Yates <jordan.yates@data61.csiro.au>
Now that device_api attribute is unmodified at runtime, as well as all
the other attributes, it is possible to switch all device driver
instance to be constant.
A coccinelle rule is used for this:
@r_const_dev_1
disable optional_qualifier
@
@@
-struct device *
+const struct device *
@r_const_dev_2
disable optional_qualifier
@
@@
-struct device * const
+const struct device *
Fixes#27399
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
The new sx1276 pin configuration helpers can be used by the sx126x
driver as well. Move them to sx126xx_common.{c,h} to facilitate reuse.
Signed-off-by: Andreas Sandberg <andreas@sandberg.pp.se>
LoRa radios supported by LoRaMAC-Node have a lot of common
functionality. Zephyr's LoRa implementation for the SX1276 uses
LoRaMAC-Nodes Radio HAL to implement API functionality like send and
recv. The exact same functionality will be used by the SX126x
driver. Facilitate sharing by moving that to a separate source file.
Signed-off-by: Andreas Sandberg <andreas@sandberg.pp.se>
