127 lines
3.8 KiB
Python
127 lines
3.8 KiB
Python
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from time import sleep
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class Controller:
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class Mock:
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pass
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ON_BOARD_LED_PIN_NO = None
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ON_BOARD_LED_HIGH_IS_ON = True
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GPIO_PINS = []
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PIN_ID_FOR_LORA_RESET = None
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PIN_ID_FOR_LORA_SS = None
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PIN_ID_SCK = None
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PIN_ID_MOSI = None
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PIN_ID_MISO = None
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PIN_ID_FOR_LORA_DIO0 = None
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PIN_ID_FOR_LORA_DIO1 = None
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PIN_ID_FOR_LORA_DIO2 = None
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PIN_ID_FOR_LORA_DIO3 = None
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PIN_ID_FOR_LORA_DIO4 = None
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PIN_ID_FOR_LORA_DIO5 = None
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def __init__(self,
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pin_id_led = ON_BOARD_LED_PIN_NO,
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on_board_led_high_is_on = ON_BOARD_LED_HIGH_IS_ON,
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pin_id_reset = PIN_ID_FOR_LORA_RESET,
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blink_on_start = (2, 0.5, 0.5)):
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self.pin_led = self.prepare_pin(pin_id_led)
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self.on_board_led_high_is_on = on_board_led_high_is_on
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self.pin_reset = self.prepare_pin(pin_id_reset)
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self.reset_pin(self.pin_reset)
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self.transceivers = {}
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self.blink_led(*blink_on_start)
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def add_transceiver(self,
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transceiver,
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pin_id_ss = PIN_ID_FOR_LORA_SS,
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pin_id_RxDone = PIN_ID_FOR_LORA_DIO0,
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pin_id_RxTimeout = PIN_ID_FOR_LORA_DIO1,
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pin_id_ValidHeader = PIN_ID_FOR_LORA_DIO2,
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pin_id_CadDone = PIN_ID_FOR_LORA_DIO3,
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pin_id_CadDetected = PIN_ID_FOR_LORA_DIO4,
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pin_id_PayloadCrcError = PIN_ID_FOR_LORA_DIO5):
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transceiver.blink_led = self.blink_led
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transceiver.pin_ss = self.prepare_pin(pin_id_ss)
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transceiver.pin_RxDone = self.prepare_irq_pin(pin_id_RxDone)
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transceiver.pin_RxTimeout = self.prepare_irq_pin(pin_id_RxTimeout)
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transceiver.pin_ValidHeader = self.prepare_irq_pin(pin_id_ValidHeader)
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transceiver.pin_CadDone = self.prepare_irq_pin(pin_id_CadDone)
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transceiver.pin_CadDetected = self.prepare_irq_pin(pin_id_CadDetected)
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transceiver.pin_PayloadCrcError = self.prepare_irq_pin(pin_id_PayloadCrcError)
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self.spi = self.prepare_spi(self.get_spi())
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transceiver.transfer = self.spi.transfer
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transceiver.init()
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self.transceivers[transceiver.name] = transceiver
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return transceiver
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def prepare_pin(self, pin_id, in_out = None):
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reason = '''
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# a pin should provide:
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# .pin_id
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# .low()
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# .high()
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# .value() # read input.
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# .irq() # (ESP8266/ESP32 only) ref to the irq function of real pin object.
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'''
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raise NotImplementedError(reason)
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def prepare_irq_pin(self, pin_id):
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reason = '''
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# a irq_pin should provide:
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# .set_handler_for_irq_on_rising_edge() # to set trigger and handler.
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# .detach_irq()
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'''
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raise NotImplementedError(reason)
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def get_spi(self):
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reason = '''
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# initialize SPI interface
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'''
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raise NotImplementedError(reason)
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def prepare_spi(self, spi):
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reason = '''
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# a spi should provide:
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# .close()
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# .transfer(pin_ss, address, value = 0x00)
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'''
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raise NotImplementedError(reason)
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def led_on(self, on = True):
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self.pin_led.high() if self.on_board_led_high_is_on == on else self.pin_led.low()
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def blink_led(self, times = 1, on_seconds = 0.1, off_seconds = 0.1):
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for i in range(times):
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self.led_on(True)
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sleep(on_seconds)
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self.led_on(False)
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sleep(off_seconds)
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def reset_pin(self, pin, duration_low = 0.05, duration_high = 0.05):
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pin.low()
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sleep(duration_low)
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pin.high()
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sleep(duration_high)
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def __exit__(self):
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self.spi.close()
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