Import('env')

headers = []
instances = []
sources = []
aliases = {}
type_aliases = {}

periph = env['PLATFORM_SPEC'].get('periph', {})

if 'stm32_gpio' in periph:
    headers.append('stm32_gpio.h')
    for name, data in periph['stm32_gpio'].items():
        instances.append({
            'type': 'STM32_GPIO_%s_t' % data['type'],
            'name': name,
            'args': [data['offset']],
        })

        type_aliases['Pin'] = 'STM32_GPIO_%s_t::Pin' % data['type']
        type_aliases['PinArray'] = 'STM32_GPIO_%s_t::PinArray' % data['type']

env.Jinja2('gpio.h', '../templates/periph_instances.h.j2', headers = headers, instances = instances, aliases = aliases, type_aliases = type_aliases)

Return('sources')