# SPDX-FileCopyrightText: 2021 Melissa LeBlanc-Williams for Adafruit Industries
#
# SPDX-License-Identifier: MIT
"""Tegra T210 pin names"""

import atexit
from Jetson import GPIO

GPIO.setmode(GPIO.TEGRA_SOC)
GPIO.setwarnings(False)  # shh!


class Pin:
    """Pins dont exist in CPython so...lets make our own!"""

    IN = 0
    OUT = 1
    LOW = 0
    HIGH = 1
    PULL_NONE = 0
    PULL_UP = 1
    PULL_DOWN = 2

    id = None
    _value = LOW
    _mode = IN

    def __init__(self, bcm_number):
        self.id = bcm_number

    def __repr__(self):
        return str(self.id)

    def __eq__(self, other):
        return self.id == other

    def init(self, mode=IN, pull=None):
        """Initialize the Pin"""
        if mode is not None:
            if mode == self.IN:
                self._mode = self.IN
                GPIO.setup(self.id, GPIO.IN)
            elif mode == self.OUT:
                self._mode = self.OUT
                GPIO.setup(self.id, GPIO.OUT)
            else:
                raise RuntimeError("Invalid mode for pin: %s" % self.id)
        if pull is not None:
            if self._mode != self.IN:
                raise RuntimeError("Cannot set pull resistor on output")
            if pull == self.PULL_UP:
                GPIO.setup(self.id, GPIO.IN, pull_up_down=GPIO.PUD_UP)
            elif pull == self.PULL_DOWN:
                GPIO.setup(self.id, GPIO.IN, pull_up_down=GPIO.PUD_DOWN)
            else:
                raise RuntimeError("Invalid pull for pin: %s" % self.id)

    def value(self, val=None):
        """Set or return the Pin Value"""
        if val is not None:
            if val == self.LOW:
                self._value = val
                GPIO.output(self.id, val)
                return None
            if val == self.HIGH:
                self._value = val
                GPIO.output(self.id, val)
                return None
            raise RuntimeError("Invalid value for pin")
        return GPIO.input(self.id)

    # pylint: disable=no-method-argument
    @atexit.register
    def cleanup():
        """Clean up pins"""
        print("Exiting... \nCleaning up pins")
        GPIO.cleanup()

    # pylint: enable=no-method-argument


# Cannot be used as GPIO
SDA = Pin("GEN1_I2C_SDA")
SCL = Pin("GEN1_I2C_SCL")
SDA_1 = Pin("GEN2_I2C_SDA")
SCL_1 = Pin("GEN2_I2C_SCL")

# These pins are native to TX1
BB03 = Pin("GPIO_X1_AUD")
X02 = Pin("MOTION_INT")
H07 = Pin("AP_WAKE_NFC")
E04 = Pin("DMIC3_CLK")
U03 = Pin("UART1_CTS")
U02 = Pin("UART1_RTS")
B03 = Pin("DAP1_SCLK")
B00 = Pin("DAP1_FS")
B01 = Pin("DAP1_DIN")
B02 = Pin("DAP1_DOUT")
P17 = Pin("GPIO_EXP_P17")
E05 = Pin("DMIC3_DAT")
X00 = Pin("MODEM_WAKE_AP")
P16 = Pin("GPIO_EXP_P16")
X03 = Pin("ALS_PROX_INT")

# These pins are native to NANO
S05 = Pin("CAM_AF_EN")
Z00 = Pin("GPIO_PZ0")
V00 = Pin("LCD_BL_PW")
G03 = Pin("UART2_CTS")
G02 = Pin("UART2_RTS")
J07 = Pin("DAP4_SCLK")
J04 = Pin("DAP4_FS")
J05 = Pin("DAP4_DIN")
J06 = Pin("DAP4_DOUT")
Y02 = Pin("LCD_TE")
DD00 = Pin("SPI2_CS1")
B07 = Pin("SPI2_CS0")
B05 = Pin("SPI2_MISO")
B04 = Pin("SPI2_MOSI")
B06 = Pin("SPI2_SCK")

# These pins are shared across T210
BB00 = Pin("AUD_MCLK")
C04 = Pin("SPI1_CS1")
C03 = Pin("SPI1_CS0")
C01 = Pin("SPI1_MISO")
C00 = Pin("SPI1_MOSI")
C02 = Pin("SPI1_SCK")
E06 = Pin("GPIO_PE6")

i2cPorts = (
    (0, SCL, SDA),
    (1, SCL_1, SDA_1),
)

# ordered as spiId, sckId, mosiId, misoId
spiPorts = ((0, C02, C00, C01), (1, B06, B04, B05))

# SysFS pwm outputs, pwm channel and pin in first tuple
pwmOuts = (
    ((0, 0), V00),
    ((0, 1), E06),
)