Makefile.features

# Process provided FEATURES
#
# The board/board common are responsible for defining the CPU and CPU_MODEL
# variables in their Makefile.features.
# This makes them available when setting features based on CPU_MODEL in the cpu
# Makefile.features and also during dependency resolution.
#
# Board features defined by common code in `boards/common` are processed
# during the dependency resolution, since they depend on the USEMODULE.

# Transition:
#   Moving 'CPU/CPU_MODEL' to Makefile.features is an ongoing work and may not
#   reflect the state of all boards for the moment.

include $(BOARDDIR)/Makefile.features

# Sanity check
ifeq (,$(CPU))
  $(error $(BOARD): CPU must be defined by board / board_common Makefile.features)
endif

include $(RIOTCPU)/$(CPU)/Makefile.features

# Provide CPU as a feature to allow listing all boards with a CPU
FEATURES_PROVIDED += cpu_$(CPU)

# Features that are conflicting for all architectures
FEATURES_CONFLICT += picolibc:newlib
FEATURES_CONFLICT_MSG += "Only one standard C library can be used."

FEATURES_CONFLICT += periph_gpio_irq:periph_gpio_ll_irq
FEATURES_CONFLICT_MSG += "Only one GPIO IRQ implementation can be used."

FEATURES_CONFLICT += periph_usbdev:tinyusb_device
FEATURES_CONFLICT += periph_usbdev:tinyusb_host
FEATURES_CONFLICT_MSG += "Package tinyUSB is not yet compatible with periph_usbdev."

# Features provided implicitly
ifneq (,$(filter periph_eth,$(FEATURES_PROVIDED)))
  FEATURES_PROVIDED += netif_ethernet
endif

ifneq (,$(filter netif_%,$(FEATURES_PROVIDED)))
  FEATURES_PROVIDED += netif
endif