djsundog/sharp-drm-driver-radxa-zero
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Handle manual build with Makefile

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This commit is contained in:
Andrew D'Angelo 2023-08-04 20:22:30 -05:00
parent 8d69debbcb
commit 5f9ebd3c86
1 changed files with 38 additions and 4 deletions
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42
Makefile
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@ -2,10 +2,44 @@ obj-m += sharp.o
sharp-objs += src/main.o src/drm_iface.o src/params_iface.o src/ioctl_iface.o
ccflags-y := -DDEBUG -g -std=gnu99 -Wno-declaration-after-statement
.PHONY: all clean
.PHONY: all clean install uninstall
all:
$(MAKE) -C '$(LINUX_DIR)' M='$(PWD)' modules
# LINUX_DIR is set by Buildroot, but not if running manually
ifeq ($(LINUX_DIR),)
LINUX_DIR := /lib/modules/$(shell uname -r)/build
endif
BOOT_CONFIG_LINE := dtoverlay=sharp
all: sharp.ko sharp.dtbo
sharp.ko: src/*.c src/*.h
$(MAKE) -C '$(LINUX_DIR)' M='$(shell pwd)' modules
sharp.dtbo: sharp.dts
dtc -@ -I dts -O dtb -W no-unit_address_vs_reg -o $@ $<
install: sharp.ko sharp.dtbo
# Install kernel module
$(MAKE) -C '$(LINUX_DIR)' M='$(shell pwd)' modules_install
# Install device tree overlay
install -D -m 0644 sharp.dtbo /boot/overlays/
# Add configuration line if it wasn't already there
grep -qxF '$(BOOT_CONFIG_LINE)' /boot/config.txt \
|| echo '$(BOOT_CONFIG_LINE)' >> /boot/config.txt
# Add auto-load module line if it wasn't already there
grep -qxF 'sharp' /etc/modules \
|| echo 'sharp' >> /etc/modules
# Rebuild dependencies
depmod -A
uninstall:
# Remove auto-load module line and create a backup file
sed -i.save '/sharp/d' /etc/modules
# Remove configuration line and create a backup file
sed -i.save '/$(BOOT_CONFIG_LINE)/d' /boot/config.txt
# Remove device tree overlay
rm -f /boot/overlays/sharp.dtbo
clean:
$(MAKE) -C '$(LINUX_DIR)' M='$(PWD)' clean
$(MAKE) -C '$(LINUX_DIR)' M='$(shell pwd)' clean