AC_PREREQ([2.69])
AC_INIT([openpower-occ-control], [1.0], [https://github.com/openbmc/openpower-occ-control/issues])

AM_INIT_AUTOMAKE([subdir-objects -Wall -Werror foreign dist-xz])
AM_SILENT_RULES([yes])
AC_LANG([C++])

# Checks for programs
AC_PROG_CXX
AM_PROG_AR
AC_PROG_INSTALL
AC_PROG_MAKE_SET

# Check for compiler, packages only when install_error_yaml optional feature
# is disabled
AC_ARG_ENABLE([install_error_yaml],
    AS_HELP_STRING([--enable-install_error_yaml], [Enable installing error yaml file]),
        [], [install_error_yaml=no])
AM_CONDITIONAL([INSTALL_ERROR_YAML], [test "x$enable_install_error_yaml" = "xyes"])
AS_IF([test "x$enable_install_error_yaml" != "xyes"], [

    # Suppress the --with-libtool-sysroot error
    LT_INIT

    # gtest
    # Check/set gtest specific functions.
    AX_PTHREAD([GTEST_CPPFLAGS="-DGTEST_HAS_PTHREAD=1"],[GTEST_CPPFLAGS="-DGTEST_HAS_PTHREAD=0"])
    AC_SUBST(GTEST_CPPFLAGS)

    # Test cases require SDK so only build if we're told to (and SDK is available)
    AC_ARG_ENABLE([oe-sdk],
        AS_HELP_STRING([--enable-oe-sdk], [Link testcases absolutely against OE SDK so they can be ran within it.])
    )
    AC_ARG_VAR(OECORE_TARGET_SYSROOT,
        [Path to the OE SDK SYSROOT])
    AS_IF([test "x$enable_oe_sdk" == "xyes"],
        AS_IF([test "x$OECORE_TARGET_SYSROOT" == "x"],
              AC_MSG_ERROR([OECORE_TARGET_SYSROOT must be set with --enable-oe-sdk])
        )
        AC_MSG_NOTICE([Enabling OE-SDK at $OECORE_TARGET_SYSROOT])
        [
            testcase_flags="-Wl,-rpath,\${OECORE_TARGET_SYSROOT}/lib"
            testcase_flags="${testcase_flags} -Wl,-rpath,\${OECORE_TARGET_SYSROOT}/usr/lib"
            testcase_flags="${testcase_flags} -Wl,-dynamic-linker,`find \${OECORE_TARGET_SYSROOT}/lib/ld-*.so | sort -r -n | head -n1`"
        ]
        AC_SUBST([OESDK_TESTCASE_FLAGS], [$testcase_flags])
    )

    PKG_CHECK_MODULES([SDBUSPLUS], [sdbusplus])
    PKG_CHECK_MODULES([PHOSPHOR_LOGGING], [phosphor-logging])
    PKG_CHECK_MODULES([PHOSPHOR_DBUS_INTERFACES], [phosphor-dbus-interfaces])
    PKG_CHECK_MODULES([SDEVENTPLUS], [sdeventplus])
    PKG_CHECK_MODULES([FMT], [fmt])

    # Check for sdbusplus
    PKG_CHECK_MODULES([SDBUSPLUS], [sdbusplus])

    # Check for sdbus++ tool
    AC_PATH_PROG([SDBUSPLUSPLUS], [sdbus++])
    AS_IF([test "x$SDBUSPLUSPLUS" == "x"], AC_MSG_ERROR([Cannot find sdbus++]))

    # Checks for typedefs, structures, and compiler characteristics.
    AX_CXX_COMPILE_STDCXX_17([noext])
    AX_APPEND_COMPILE_FLAGS([-Wall -Werror], [CXXFLAGS])

    AC_ARG_ENABLE([i2c-occ],
        AS_HELP_STRING([--enable-i2c-occ], [Enable I2C OCC support])
    )
    AS_IF([test "x$enable_i2c_occ" == "xyes"],
        AC_MSG_NOTICE([Enabling I2C OCC])
        [
            cpp_flags="-DI2C_OCC"
        ]
        AC_SUBST([CPPFLAGS], [$cpp_flags])
    )

    AC_ARG_WITH([host-communication-protocol],
        AS_HELP_STRING([--with-host-communication-protocol], [To specify the host communication protocol])
    )
    AM_CONDITIONAL([ENABLE_PLDM], [test "$with_host_communication_protocol" == "pldm"])
    AS_IF([test "x$with_host_communication_protocol" == "xpldm"],
        AC_MSG_NOTICE([Enabling PLDM])
        [
            cpp_flags="$CPPFLAGS -DPLDM"
            AX_PKG_CHECK_MODULES([LIBPLDM], [libpldm])
        ]
        AC_SUBST([CPPFLAGS], [$cpp_flags])
    )
])

AC_ARG_VAR(OCC_CONTROL_BUSNAME, [The Dbus busname to own])
AS_IF([test "x$OCC_CONTROL_BUSNAME" == "x"], [OCC_CONTROL_BUSNAME="org.open_power.OCC.Control"])
AC_DEFINE_UNQUOTED([OCC_CONTROL_BUSNAME], ["$OCC_CONTROL_BUSNAME"], [The DBus busname to own])

AC_ARG_VAR(OCC_CONTROL_ROOT, [The Dbus root])
AS_IF([test "x$OCC_CONTROL_ROOT" == "x"], [OCC_CONTROL_ROOT="/org/open_power/control"])
AC_DEFINE_UNQUOTED([OCC_CONTROL_ROOT], ["$OCC_CONTROL_ROOT"], [The Dbus root])

AC_ARG_VAR(MAX_CPUS, [The max number of CPUs])
AS_IF([test "x$MAX_CPUS" == "x"], [MAX_CPUS=2])
AC_DEFINE_UNQUOTED([MAX_CPUS], [$MAX_CPUS], [The max number of CPUs])

AC_ARG_VAR(CPU_NAME, [The CPU object name])
AS_IF([test "x$CPU_NAME" == "x"], [CPU_NAME="cpu"])
AC_DEFINE_UNQUOTED([CPU_NAME], ["$CPU_NAME"], [The CPU object name])

AC_ARG_VAR(OCC_NAME, [The OCC object name])
AS_IF([test "x$OCC_NAME" == "x"], [OCC_NAME="occ"])
AC_DEFINE_UNQUOTED([OCC_NAME], ["$OCC_NAME"], [The OCC object name])

AC_ARG_VAR(OCC_MASTER_NAME, [The OCC master object name])
AS_IF([test "x$OCC_MASTER_NAME" == "x"], [OCC_MASTER_NAME="occ-hwmon.1"])
AC_DEFINE_UNQUOTED([OCC_MASTER_NAME], ["$OCC_MASTER_NAME"], [The OCC master object name])

AC_ARG_VAR(OCC_HWMON_PATH, [The OCC hwmon path])
AC_ARG_VAR(DEV_PATH, [The device path])
AC_ARG_VAR(I2C_OCC_DEVICE_NAME, [The device name of i2c occ hwmon])
AS_IF([test "x$enable_i2c_occ" == "xyes"],
    # If enable_2c_occ is defined, define occ hwmon path for I2C and its driver's name
    AS_IF([test "x$OCC_HWMON_PATH" == "x"], [OCC_HWMON_PATH="/sys/bus/i2c/drivers/occ-hwmon/"])
    AS_IF([test "x$DEV_PATH" == "x"], [DEV_PATH="/sys/bus/i2c/devices"])
    AS_IF([test "x$I2C_OCC_DEVICE_NAME" == "x"], [I2C_OCC_DEVICE_NAME="p8-occ-hwmon"]),

    # Else, define occ hwmon path for FSI
    AS_IF([test "x$OCC_HWMON_PATH" == "x"], [OCC_HWMON_PATH="/sys/bus/platform/drivers/occ-hwmon/"])
    AS_IF([test "x$DEV_PATH" == "x"], [DEV_PATH="/sys/bus/platform/devices/"]),
)
AC_DEFINE_UNQUOTED([OCC_HWMON_PATH], ["$OCC_HWMON_PATH"], [The OCC hwmon path])
AC_DEFINE_UNQUOTED([DEV_PATH], ["$DEV_PATH"], [The device path])
AC_DEFINE_UNQUOTED([I2C_OCC_DEVICE_NAME], ["$I2C_OCC_DEVICE_NAME"], [The device name of i2c occ hwmon])

AC_ARG_VAR(OCC_DEV_PATH, [The OCC device path in /dev])
AS_IF([test "x$OCC_DEV_PATH" == "x"], [OCC_DEV_PATH="/dev/occ"])
AC_DEFINE_UNQUOTED([OCC_DEV_PATH], ["$OCC_DEV_PATH"], [The OCC device path in /dev])

AC_ARG_VAR(PS_DERATING_FACTOR, [The power supply derating factor])
AS_IF([test "x$PS_DERATING_FACTOR" == "x"], [PS_DERATING_FACTOR=90])
AC_DEFINE_UNQUOTED([PS_DERATING_FACTOR], [$PS_DERATING_FACTOR], [The power supply derating factor])

AC_ARG_VAR(CPU_SUBPATH, [The subpath containing CPU objects])
AS_IF([test "x$CPU_SUBPATH" == "x"], [CPU_SUBPATH="/xyz/openbmc_project/inventory/system/chassis/motherboard"])
AC_DEFINE_UNQUOTED([CPU_SUBPATH], ["$CPU_SUBPATH"], [The subpath containing CPU objects])

# Handling configuration files
AC_ARG_VAR(YAML_PATH, [The path to the yaml config files.])
AS_IF([test "x$YAML_PATH" == "x"], [YAML_PATH="$srcdir/example"])
AC_DEFINE_UNQUOTED([YAML_PATH], ["$YAML_PATH"], [The path to the yaml config files])

AC_CONFIG_HEADERS([config.h])
AC_CONFIG_FILES([Makefile test/Makefile])
AC_OUTPUT