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RIOT/cpu/stm32/Makefile.dep
Marian Buschsieweke 276ad5716a
sys/net/gnrc/netif: allow checking if a netdev is legacy or new API
A if `netdev_driver_t::confirm_send()` is provided, it provides the
new netdev API. However, detecting the API at runtime and handling
both API styles comes at a cost. This can be optimized in case only
new or only old style netdevs are in use.

To do so, this adds the pseudo modules `netdev_legacy_api` and
`netdev_new_api`. As right now no netdev actually implements the new
API, all netdevs pull in `netdev_legacy_api`. If `netdev_legacy_api` is
in used but `netdev_new_api` is not, we can safely assume at compile
time that only legacy netdevs are in use. Similar, if only
`netdev_new_api` is used, only support for the new API is needed. Only
when both are in use, run time checks are needed.

This provides two helper function to check for a netif if the
corresponding netdev implements the old or the new API. (With one
being the inverse of the other.) They are suitable for constant folding
when only new or only legacy devices are in use. Consequently, dead
branches should be eliminated by the optimizer.
2022-08-17 12:56:07 +02:00

64 lines
1.5 KiB
Makefile

# All stm32 families provide pm support
# include stm32 common periph drivers, clock configurations and vectors
USEMODULE += periph stm32_clk stm32_vectors
ifneq (,$(filter periph_usbdev,$(FEATURES_USED)))
USEMODULE += ztimer
USEMODULE += ztimer_msec
endif
ifneq (,$(filter periph_uart_nonblocking,$(USEMODULE)))
USEMODULE += tsrb
endif
ifneq (,$(filter stm32_eth_%,$(USEMODULE)))
USEMODULE += stm32_eth
endif
ifneq (,$(filter stm32_eth_auto,$(USEMODULE)))
USEMODULE += stm32_eth_link_up
endif
ifneq (,$(filter stm32_eth,$(USEMODULE)))
FEATURES_REQUIRED += periph_eth
USEMODULE += iolist
USEMODULE += netdev_eth
USEMODULE += netdev_legacy_api
USEMODULE += ztimer
USEMODULE += ztimer_msec
# lwip IPv6 supports needs link up events to perform duplicate address
# detection
ifneq (,$(filter lwip_ipv6,$(USEMODULE)))
USEMODULE += stm32_eth_link_up
endif
endif
ifneq (,$(filter periph_can,$(FEATURES_USED)))
FEATURES_REQUIRED += periph_gpio
FEATURES_REQUIRED += periph_gpio_irq
endif
ifneq (,$(filter periph_eth periph_ptp,$(USEMODULE)))
USEMODULE += periph_eth_common
endif
# periph_rtc_mem is currently tied to the periph_rtc
ifneq (,$(filter periph_rtc_mem,$(USEMODULE)))
FEATURES_REQUIRED += periph_rtc
endif
ifneq (,$(filter periph_adc,$(FEATURES_USED)))
ifneq (,$(filter f3 l4 wl, $(CPU_FAM)))
USEMODULE += ztimer
USEMODULE += ztimer_msec
endif
endif
ifneq (,$(filter periph_vbat,$(USEMODULE)))
FEATURES_REQUIRED += periph_adc
endif
include $(RIOTCPU)/cortexm_common/Makefile.dep