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zephyr/drivers/gpio/Kconfig.altera_nios2

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drivers: gpio: add support for Altera Nios-II PIO controller The PIO cores on Altera Nios-II processors can be used for GPIOs and each PIO core can be configured as Input only, Output only or as Bidirectional port from the Qsys tool. The present Nios-II softcpu image on the Zephyr only has the support for Output only port and the PIOs[0:3] are wired to LED[0:3] on the Altera MAX10 board. Signed-off-by: Ramakrishna Pallala <ramakrishna.pallala@intel.com>
2017-12-16 17:25:09 +08:00
# Kconfig.altera_nios2 - Altera Nios-II GPIO configuration options
#
#
# Copyright (c) 2017 Intel Corporation
#
# SPDX-License-Identifier: Apache-2.0
#
menuconfig GPIO_ALTERA_NIOS2
bool "Altera Nios-II PIO Controllers"
kconfig: gpio: Remove lots of redundant GPIO dependencies Most of these are from source'ing a file within an 'if GPIO', and then adding another 'depends on GPIO' within it. 'if FOO' is just shorthand for adding 'depends on FOO' to each item within the 'if'. There are no "conditional includes" in Kconfig, so 'if FOO' has no special meaning around a 'source'. Conditional includes wouldn't be possible, because an 'if' condition could include (directly or indirectly) forward references to symbols not defined yet. Tip: When adding a symbol, check its dependencies in the menuconfig ('ninja menuconfig', then / to jump to the symbol). The menuconfig also shows how the file with the symbol got included, so if you see duplicated dependencies, it's easy to hunt down where they come from. Signed-off-by: Ulf Magnusson <Ulf.Magnusson@nordicsemi.no>
2019-03-07 14:12:27 +08:00
depends on HAS_ALTERA_HAL
drivers: gpio: add support for Altera Nios-II PIO controller The PIO cores on Altera Nios-II processors can be used for GPIOs and each PIO core can be configured as Input only, Output only or as Bidirectional port from the Qsys tool. The present Nios-II softcpu image on the Zephyr only has the support for Output only port and the PIOs[0:3] are wired to LED[0:3] on the Altera MAX10 board. Signed-off-by: Ramakrishna Pallala <ramakrishna.pallala@intel.com>
2017-12-16 17:25:09 +08:00
help
Enable config options to support the PIO controllers
on Altera Nios-II family processors.
Says n if not sure.
if GPIO_ALTERA_NIOS2
config GPIO_ALTERA_NIOS2_OUTPUT
bool "Enable driver for Altera Nios-II PIO Output Port"
help
Build the driver to utilize PIO controller Output Port.
config GPIO_ALTERA_NIOS2_OUTPUT_DEV_NAME
string "Device name for Output Port"
depends on GPIO_ALTERA_NIOS2_OUTPUT
default "PIO_OUTPUT"
help
Device name for Output Port.
endif # GPIO_ALTERA_NIOS2