import os
import re
import rtconfig
from building import *

Import('SDK_LIB')

cwd = GetCurrentDir()

# add general drivers
src = ['board.c']

path =  [cwd]

CPPDEFINES = [
    'CONFIG_KERNEL_RTTHREAD=1 ',
    '__RT_KERNEL_SOURCE__=1 ',
    'CONFIG_CSI_V2=1 ',
    'CONFIG_CSI="csi2" ',
    'CONFIG_XIP=1 ',
    'CONFIG_ARCH_MAINSTACK=8192 ',
    'CONFIG_ARCH_INTERRUPTSTACK=8192 ',
    'CONFIG_BOARD_XIAOHUI_EVB=1 ',
    'CLI_CONFIG_STACK_SIZE=8192 ',
    'CONFIG_PLIC_BASE=134217728 ',
    'CONFIG_VIC_TSPDR=201326592 ',
    'CONFIG_CLINT_BASE=201326592 ',
    'CONFIG_INTC_PLIC=1 ',
    'CONFIG_INIT_TASK_STACK_SIZE=8192 ',
    'CONFIG_APP_TASK_STACK_SIZE=8192 ',
    'CONFIG_DEBUG=1 ',
    'CONFIG_CPU_XUANTIE_C907FDVM=1 '
]

CPPDEFINES += ['CONFIG_SYSTICK_HZ=RT_TICK_PER_SECOND ']

def read_rtconfig_macro(macro):
    try:
        with open('rtconfig.h', 'r') as f:
            for line in f:
                if re.search(r'#define\s+' + macro + r'\b', line):
                    return True
    except FileNotFoundError:
        pass
    return False

if read_rtconfig_macro('RT_USING_SMP'):
    CPPDEFINES += ['CONFIG_SMP=1 ']
CPPDEFINES += ['CONFIG_NR_CPUS=RT_CPUS_NR ']

group = DefineGroup('Drivers', src, depend = [''], CPPPATH = path, CPPDEFINES = CPPDEFINES)
Return('group')