Import('RTT_ROOT')
Import('rtconfig')
from building import *

cwd = os.path.join(str(Dir('#')), 'drivers')

# add the general drivers.
src = Split("""
board.c
drv_usart.c
""")

CPPPATH = [cwd]

# add spi drivers.
if GetDepend('RT_USING_SPI'):
    src += ['drv_spi.c']
    
# add i2c drivers.
if GetDepend('RT_USING_I2C'):
    src += ['drv_i2c.c']

# add pin drivers.
if GetDepend('RT_USING_PIN'):
    src += ['drv_gpio.c']

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

Return('group')