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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.
26 lines
711 B
Plaintext
26 lines
711 B
Plaintext
# Copyright (c) 2022 HAW Hamburg
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#
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# This file is subject to the terms and conditions of the GNU Lesser
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# General Public License v2.1. See the file LICENSE in the top level
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# directory for more details.
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#
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config MODULE_W5100
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bool "W5100 Ethernet Adapter"
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depends on TEST_KCONFIG
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depends on HAS_PERIPH_GPIO
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depends on HAS_PERIPH_GPIO_IRQ
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depends on HAS_PERIPH_SPI
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select MODULE_LUID
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select MODULE_NETDEV_ETH
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select MODULE_NETDEV_LEGACY_API
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select MODULE_PERIPH_GPIO
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select MODULE_PERIPH_GPIO_IRQ
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select MODULE_PERIPH_SPI
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config HAVE_W5100
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bool
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select MODULE_W5100 if MODULE_NETDEV_DEFAULT
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help
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Indicates that a w5100 ethernet adapter is present.
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