################################################################################
#
# spidev_test
#
################################################################################

# Build the latest version that is compatible with the toolchain's kernel headers
# v3.15+ requires SPI_TX_QUAD/SPI_RX_QUAD to build
# Normally kernel headers can't be newer than kernel so switch based on that.
# If you need quad-pumped spi support you need to upgrade your toolchain.
# Note that the location of spidev_test.c changes from v4.5 onwards.

ifeq ($(BR2_TOOLCHAIN_HEADERS_AT_LEAST_5_8),y)
SPIDEV_TEST_VERSION = 5.8
SPIDEV_TEST_PATH = tools/spi
else ifeq ($(BR2_TOOLCHAIN_HEADERS_AT_LEAST_3_15),y)
SPIDEV_TEST_VERSION = 4.10
SPIDEV_TEST_PATH = tools/spi
else
SPIDEV_TEST_VERSION = 3.0
SPIDEV_TEST_PATH = Documentation/spi
endif

SPIDEV_TEST_SITE = http://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/plain/$(SPIDEV_TEST_PATH)
SPIDEV_TEST_SOURCE = spidev_test.c?id=v$(SPIDEV_TEST_VERSION)
SPIDEV_TEST_LICENSE = GPL-2.0

# musl libc requires linux/ioctl.h for _IOC_SIZEBITS. Do a sed patch to keep
# compatibility with different spidev_test.c versions that we support.
define SPIDEV_TEST_ADD_LINUX_IOCTL
	$(SED) 's~^#include <sys/ioctl.h>~#include <sys/ioctl.h>\n#include <linux/ioctl.h>~' \
		$(@D)/spidev_test.c
endef

SPIDEV_TEST_POST_PATCH_HOOKS += SPIDEV_TEST_ADD_LINUX_IOCTL

define SPIDEV_TEST_EXTRACT_CMDS
	cp $(SPIDEV_TEST_DL_DIR)/$(SPIDEV_TEST_SOURCE) $(@D)/spidev_test.c
endef

define SPIDEV_TEST_BUILD_CMDS
	$(TARGET_MAKE_ENV) $(TARGET_CC) $(TARGET_CFLAGS) \
		-o $(@D)/spidev_test $(@D)/spidev_test.c
endef

define SPIDEV_TEST_INSTALL_TARGET_CMDS
	$(INSTALL) -D -m 755 $(@D)/spidev_test \
		$(TARGET_DIR)/usr/sbin/spidev_test
endef

$(eval $(generic-package))