46 lines
1.4 KiB
Makefile
46 lines
1.4 KiB
Makefile
obj-m += sharp.o
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sharp-objs += src/main.o src/drm_iface.o src/params_iface.o src/ioctl_iface.o
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ccflags-y := -DDEBUG -g -std=gnu99 -Wno-declaration-after-statement
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.PHONY: all clean install uninstall
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# LINUX_DIR is set by Buildroot, but not if running manually
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ifeq ($(LINUX_DIR),)
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LINUX_DIR := /lib/modules/$(shell uname -r)/build
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endif
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BOOT_CONFIG_LINE := dtoverlay=sharp
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all: sharp.ko sharp.dtbo
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sharp.ko: src/*.c src/*.h
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$(MAKE) -C '$(LINUX_DIR)' M='$(shell pwd)' modules
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sharp.dtbo: sharp.dts
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dtc -@ -I dts -O dtb -W no-unit_address_vs_reg -o $@ $<
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install: sharp.ko sharp.dtbo
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# Install kernel module
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$(MAKE) -C '$(LINUX_DIR)' M='$(shell pwd)' modules_install
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# Install device tree overlay
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install -D -m 0644 sharp.dtbo /boot/overlays/
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# Add configuration line if it wasn't already there
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grep -qxF '$(BOOT_CONFIG_LINE)' /boot/config.txt \
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|| echo '[all]\n$(BOOT_CONFIG_LINE)' >> /boot/config.txt
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# Add auto-load module line if it wasn't already there
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grep -qxF 'sharp' /etc/modules \
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|| echo 'sharp' >> /etc/modules
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# Rebuild dependencies
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depmod -A
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uninstall:
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# Remove auto-load module line and create a backup file
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sed -i.save '/sharp/d' /etc/modules
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# Remove configuration line and create a backup file
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sed -i.save '/$(BOOT_CONFIG_LINE)/d' /boot/config.txt
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# Remove device tree overlay
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rm -f /boot/overlays/sharp.dtbo
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clean:
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$(MAKE) -C '$(LINUX_DIR)' M='$(shell pwd)' clean
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