openwrtv4/package/kernel/spi-gpio-custom/Makefile
Gabor Juhos 6bb50e4df1 package/kernel: add spi-gpio-custom module
The package makes it possible to create custom SPI
buses via GPIO lines.

This module is based on i2c-gpio-custom and allows to
configure an SPI bus via GPIO lines and expose it to
userspace without rebuilding the kernel. This is maily
intended to connect microcontrollers and other simple
SPI devices without making an ad-hoc kernel driver.

Signed-off-by: Marco Burato <zmaster.adsl@gmail.com>
[juhosg:
  - change subject,
  - extend and reformat commit message,
  - cleanup checkpatch errors/warnings in module source]
Signed-off-by: Gabor Juhos <juhosg@openwrt.org>

SVN-Revision: 37872
2013-09-02 08:45:29 +00:00

53 lines
1.2 KiB
Makefile

#
# Copyright (C) 2008 OpenWrt.org
#
# This is free software, licensed under the GNU General Public License v2.
# See /LICENSE for more information.
#
include $(TOPDIR)/rules.mk
include $(INCLUDE_DIR)/kernel.mk
PKG_NAME:=spi-gpio-custom
PKG_RELEASE:=1
include $(INCLUDE_DIR)/package.mk
define KernelPackage/spi-gpio-custom
SUBMENU:=SPI Support
TITLE:=Custom GPIO-based SPI device
DEPENDS:=@GPIO_SUPPORT +kmod-spi-bitbang +kmod-spi-gpio +kmod-spi-dev
FILES:=$(PKG_BUILD_DIR)/spi-gpio-custom.ko
KCONFIG:=
endef
define KernelPackage/spi-gpio-custom/description
Kernel module for register a custom spi-gpio platform device.
endef
EXTRA_KCONFIG:= \
CONFIG_SPI_GPIO_CUSTOM=m
EXTRA_CFLAGS:= \
$(patsubst CONFIG_%, -DCONFIG_%=1, $(patsubst %=m,%,$(filter %=m,$(EXTRA_KCONFIG)))) \
$(patsubst CONFIG_%, -DCONFIG_%=1, $(patsubst %=y,%,$(filter %=y,$(EXTRA_KCONFIG)))) \
MAKE_OPTS:= \
ARCH="$(LINUX_KARCH)" \
CROSS_COMPILE="$(TARGET_CROSS)" \
SUBDIRS="$(PKG_BUILD_DIR)" \
EXTRA_CFLAGS="$(EXTRA_CFLAGS)" \
$(EXTRA_KCONFIG)
define Build/Prepare
mkdir -p $(PKG_BUILD_DIR)
$(CP) ./src/* $(PKG_BUILD_DIR)/
endef
define Build/Compile
$(MAKE) -C "$(LINUX_DIR)" \
$(MAKE_OPTS) \
modules
endef
$(eval $(call KernelPackage,spi-gpio-custom))