143 lines
3.5 KiB
Python
143 lines
3.5 KiB
Python
# SPDX-FileCopyrightText: 2021 Melissa LeBlanc-Williams for Adafruit Industries
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#
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# SPDX-License-Identifier: MIT
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"""Tegra T210 pin names"""
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import atexit
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from Jetson import GPIO
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GPIO.setmode(GPIO.TEGRA_SOC)
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GPIO.setwarnings(False) # shh!
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class Pin:
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"""Pins dont exist in CPython so...lets make our own!"""
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IN = 0
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OUT = 1
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LOW = 0
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HIGH = 1
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PULL_NONE = 0
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PULL_UP = 1
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PULL_DOWN = 2
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id = None
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_value = LOW
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_mode = IN
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def __init__(self, bcm_number):
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self.id = bcm_number
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def __repr__(self):
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return str(self.id)
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def __eq__(self, other):
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return self.id == other
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def init(self, mode=IN, pull=None):
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"""Initialize the Pin"""
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if mode is not None:
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if mode == self.IN:
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self._mode = self.IN
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GPIO.setup(self.id, GPIO.IN)
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elif mode == self.OUT:
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self._mode = self.OUT
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GPIO.setup(self.id, GPIO.OUT)
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else:
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raise RuntimeError("Invalid mode for pin: %s" % self.id)
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if pull is not None:
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if self._mode != self.IN:
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raise RuntimeError("Cannot set pull resistor on output")
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if pull == self.PULL_UP:
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GPIO.setup(self.id, GPIO.IN, pull_up_down=GPIO.PUD_UP)
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elif pull == self.PULL_DOWN:
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GPIO.setup(self.id, GPIO.IN, pull_up_down=GPIO.PUD_DOWN)
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else:
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raise RuntimeError("Invalid pull for pin: %s" % self.id)
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def value(self, val=None):
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"""Set or return the Pin Value"""
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if val is not None:
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if val == self.LOW:
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self._value = val
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GPIO.output(self.id, val)
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return None
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if val == self.HIGH:
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self._value = val
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GPIO.output(self.id, val)
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return None
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raise RuntimeError("Invalid value for pin")
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return GPIO.input(self.id)
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# pylint: disable=no-method-argument
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@atexit.register
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def cleanup():
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"""Clean up pins"""
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print("Exiting... \nCleaning up pins")
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GPIO.cleanup()
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# pylint: enable=no-method-argument
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# Cannot be used as GPIO
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SDA = Pin("GEN1_I2C_SDA")
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SCL = Pin("GEN1_I2C_SCL")
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SDA_1 = Pin("GEN2_I2C_SDA")
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SCL_1 = Pin("GEN2_I2C_SCL")
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# These pins are native to TX1
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BB03 = Pin("GPIO_X1_AUD")
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X02 = Pin("MOTION_INT")
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H07 = Pin("AP_WAKE_NFC")
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E04 = Pin("DMIC3_CLK")
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U03 = Pin("UART1_CTS")
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U02 = Pin("UART1_RTS")
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B03 = Pin("DAP1_SCLK")
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B00 = Pin("DAP1_FS")
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B01 = Pin("DAP1_DIN")
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B02 = Pin("DAP1_DOUT")
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P17 = Pin("GPIO_EXP_P17")
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E05 = Pin("DMIC3_DAT")
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X00 = Pin("MODEM_WAKE_AP")
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P16 = Pin("GPIO_EXP_P16")
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X03 = Pin("ALS_PROX_INT")
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# These pins are native to NANO
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S05 = Pin("CAM_AF_EN")
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Z00 = Pin("GPIO_PZ0")
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V00 = Pin("LCD_BL_PW")
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G03 = Pin("UART2_CTS")
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G02 = Pin("UART2_RTS")
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J07 = Pin("DAP4_SCLK")
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J04 = Pin("DAP4_FS")
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J05 = Pin("DAP4_DIN")
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J06 = Pin("DAP4_DOUT")
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Y02 = Pin("LCD_TE")
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DD00 = Pin("SPI2_CS1")
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B07 = Pin("SPI2_CS0")
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B05 = Pin("SPI2_MISO")
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B04 = Pin("SPI2_MOSI")
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B06 = Pin("SPI2_SCK")
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# These pins are shared across T210
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BB00 = Pin("AUD_MCLK")
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C04 = Pin("SPI1_CS1")
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C03 = Pin("SPI1_CS0")
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C01 = Pin("SPI1_MISO")
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C00 = Pin("SPI1_MOSI")
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C02 = Pin("SPI1_SCK")
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E06 = Pin("GPIO_PE6")
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i2cPorts = (
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(0, SCL, SDA),
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(1, SCL_1, SDA_1),
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)
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# ordered as spiId, sckId, mosiId, misoId
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spiPorts = ((0, C02, C00, C01), (1, B06, B04, B05))
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# SysFS pwm outputs, pwm channel and pin in first tuple
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pwmOuts = (
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((0, 0), V00),
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((0, 1), E06),
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)
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