Provide correct active level and pull on all signals. Use
init-to-active when configuring antenna switch.
Signed-off-by: Peter Bigot <peter.bigot@nordicsemi.no>
Experimentation with RSSI checks of BLE scans confirms that the
antenna switch setting is incorrect on the argon, boron, and xenon
platforms: when PCB is selected, performance is best with a uFL
antenna, and vice-versa. Checks against the Particle OpenThread
firmware confirm that the correct practice is to invert the settings.
Though the SKY 13351 SPDT switch datasheet suggests otherwise it seems
the VCTLx signals are active low.
Switch the sense of all antennal selection output operations.
Signed-off-by: Peter A. Bigot <pab@pabigot.com>
move gpio.h to drivers/gpio.h and
create a shim for backward-compatibility.
No functional changes to the headers.
A warning in the shim can be controlled with CONFIG_COMPAT_INCLUDES.
Related to #16539
Signed-off-by: Anas Nashif <anas.nashif@intel.com>
All three boards use a Skyworks SPDT switch to control whether the
antenna is connected to a PCB antenna or an external u.FL connector.
None of them power up in a state that properly enables an antenna.
Add startup code to configure for the PCB antenna.
Fixes: https://github.com/zephyrproject-rtos/zephyr/issues/14123
Signed-off-by: Peter A. Bigot <pab@pabigot.com>
[mike@foundries.io: adjusted code to use Zephyr GPIO APIs. boron is
now also based on DTS.]
Signed-off-by: Michael Scott <mike@foundries.io>
