* io_pins: implement efiSetPadUnused
When pin becomes unused it should be switched to safe mode and
disconnected from any IP block. Assume that gpio input mode with
pull-up is safe enough.
* trigger_input: switch triggers pins to safe mode on stop/reinit
* digital_input_exti: rework
* rename enableExti to efiExtiEnablePin
* add efiExtiDisablePin
* keep track of used exti channels
* trigger_input: use digital_input_exti functions
* Kill annoing warnings about unused vars
* Kill annoing signed vs unsigned warnings
* Make ALWAYS_INLINE macro realy inlining
* Incorrect attribute placement.
While correct attribute placement cause ram4 overflow.
Move to correct place (to avoid gcc-2018-q4 errors) and comment
out.
* Silence -Wcast-function-type warnings
Cast to intermediate "void *" to lose compiler knowledge about the original
type and pass the warning. This is a workaround.
rusefi
dron0gus
rusefi