#
# (C) COPYRIGHT 2010-2013 ARM Limited. All rights reserved.
#
# This program is free software and is provided to you under the terms of the
# GNU General Public License version 2 as published by the Free Software
# Foundation, and any use by you of this program is subject to the terms
# of such GNU licence.
#
# A copy of the licence is included with the program, and can also be obtained
# from Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor,
# Boston, MA  02110-1301, USA.
#
#


import os
import re
import sys
Import('env')

mock_test = 0

if env['v'] != '1':
	env['MAKECOMSTR'] = '[MAKE] ${SOURCE.dir}'

# Fake platform is a transient solution for GPL drivers running in kernel that does not provide configuration via platform data.
# For such kernels fake_platform_device should be set to 1. For kernels providing platform data fake_platform_device should be set to 0.
fake_platform_device = 1

# Source files required for kbase.
kbase_src = [Glob('#kernel/drivers/gpu/arm/t6xx/kbase/src/common/*.c'), Glob('#kernel/drivers/gpu/arm/t6xx/kbase/src/linux/*.c'), Glob('#kernel/drivers/gpu/arm/t6xx/kbase/src/common/*.h'), Glob('#kernel/drivers/gpu/arm/t6xx/kbase/src/linux/*.h')]

if Glob('#kernel/drivers/gpu/arm/t6xx/kbase/tests/internal/src/mock') and env['unit'] == '1':
	kbase_src += [Glob('#kernel/drivers/gpu/arm/t6xx/kbase/tests/internal/src/mock/*.c')]
	mock_test = 1

# we need platform config for GPL version using fake platform
if fake_platform_device==1:
	# Check if we are compiling for PBX
	linux_config_file = os.path.normpath(os.environ['KDIR']) + '/.config'
	search_term = '^[\ ]*CONFIG_MACH_REALVIEW_PBX[\ ]*=[\ ]*y'
	REALVIEW_PBX = 0
	for line in open(linux_config_file, 'r'):
		if re.search(search_term, line):
			REALVIEW_PBX = 1
			break
	if REALVIEW_PBX == 1 and env['platform_config'] == 'vexpress':
		sys.stderr.write("WARNING: Building for a PBX kernel but with platform_config=vexpress\n")
	# if the file platform config file is in the tpip directory then use that, otherwise use the default config directory
	if Glob('#kernel/drivers/gpu/arm/t6xx/kbase/src/linux/config/tpip/*%s.c' % (env['platform_config'])):
		kbase_src += Glob('#kernel/drivers/gpu/arm/t6xx/kbase/src/linux/config/tpip/*%s.c' % (env['platform_config']))
	else:
		kbase_src += Glob('#kernel/drivers/gpu/arm/t6xx/kbase/src/linux/config/*%s.c' % (env['platform_config']))
	
# Note: cleaning via the Linux kernel build system does not yet work
if env.GetOption('clean') :
	makeAction=Action("cd ${SOURCE.dir}/.. && make clean", '$MAKECOMSTR')
else:
	if env['os'] == 'android':
		env['android'] = 1
	else:
		env['android'] = 0

	if env['unit'] == '1':
		env['kernel_test'] = 1
	else:
		env['kernel_test'] = 0
	makeAction=Action("cd ${SOURCE.dir}/.. && make PLATFORM=${platform} MALI_ERROR_INJECT_ON=${error_inject} MALI_ANDROID=${android} MALI_KERNEL_TEST_API=${kernel_test} MALI_UNIT_TEST=${unit} MALI_RELEASE_NAME=\"${mali_release_name}\" MALI_MOCK_TEST=%s MALI_CUSTOMER_RELEASE=${release} MALI_INSTRUMENTATION_LEVEL=${instr} MALI_COVERAGE=${coverage} %s && cp mali_kbase.ko $STATIC_LIB_PATH/mali_kbase.ko" % (mock_test, env.kernel_get_config_defines(fake_platform_device)), '$MAKECOMSTR')

cmd = env.Command('$STATIC_LIB_PATH/mali_kbase.ko', kbase_src, [makeAction])

# Add a dependency on kds.ko.
# Only necessary when KDS is not built into the kernel.
#
linux_config_file = os.path.normpath(os.environ['KDIR']) + '/.config'
search_term = '^[\ ]*CONFIG_KDS[\ ]*=[\ ]*y'
kds_in_kernel = 0
for line in open(linux_config_file, 'r'):
	if re.search(search_term, line):
        # KDS in kernel.
		kds_in_kernel = 1
if not kds_in_kernel:
	env.Depends('$STATIC_LIB_PATH/mali_kbase.ko', '$STATIC_LIB_PATH/kds.ko')

# need Module.symvers from ump.ko build
if int(env['ump']) == 1:
	env.Depends('$STATIC_LIB_PATH/mali_kbase.ko', '$STATIC_LIB_PATH/ump.ko')

# Until we fathom out how the invoke the Linux build system to clean, we can use Clean
# to remove generated files.
patterns = ['*.mod.c', '*.o', '*.ko', '*.a', '.*.cmd', 'modules.order', '.tmp_versions', 'Module.symvers']

for p in patterns:
	Clean(cmd, Glob('#kernel/drivers/gpu/arm/t6xx/kbase/src/%s' % p))
	Clean(cmd, Glob('#kernel/drivers/gpu/arm/t6xx/kbase/src/linux/%s' % p))
	Clean(cmd, Glob('#kernel/drivers/gpu/arm/t6xx/kbase/src/linux/config/%s' % p))
	Clean(cmd, Glob('#kernel/drivers/gpu/arm/t6xx/kbase/src/common/%s' % p))
	Clean(cmd, Glob('#kernel/drivers/gpu/arm/t6xx/kbase/tests/internal/src/mock/%s' % p))
	Clean(cmd, Glob('#kernel/drivers/gpu/arm/t6xx/kbase/src/platform/%s/%s' % ((env['platform_config']), p) ))

env.ProgTarget('kbase', cmd)

env.AppendUnique(BASE=['cutils_list'])