"""
Pin definitions for the Beaglebone PocketBeagle.

based on
https://github.com/beagleboard/pocketbeagle/wiki/System-Reference-Manual#figure-42-expansion-header-popular-functions---color-coded
"""
from adafruit_blinka.microcontroller.am335x import pin

# initial pins, to mimic bonescript demo
# PocketBeagle
# P1_1 = SYS VIN
P1_2 = pin.P1_2  # GPIO_87
P1_3 = pin.P1_3  # GPIO_109
P1_4 = pin.P1_4  # GPIO_89
# P1_5 = USB VBUS
P1_6 = pin.P1_6  # GPIO_5
# P1_7 = USB VIN
P1_8 = pin.P1_8  # GPIO_2
# P1_9 = USB DN
P1_10 = pin.P1_10  # GPIO_3
# P1_11 = USB DP
P1_12 = pin.P1_12  # GPIO_4
# P1_13 = USB ID
# P1_14 = SYS 3.3V
# P1_15 = SYS GND
# P1_16 = SYS GND
# P1_17 = AIN 1.8V REF-
# P1_18 = AIN 1.8V REF+
P1_19 = pin.P1_19  # AIN0
P1_20 = pin.P1_20  # GPIO_20
P1_21 = pin.P1_21  # AIN1
# P1_22 = SYS GND
P1_23 = pin.P1_23  # AIN2
# P1_22 = SYS VOUT
P1_25 = pin.P1_25  # AIN3
P1_26 = pin.P1_26  # GPIO_12
P1_27 = pin.P1_27  # AIN4
P1_28 = pin.P1_28  # GPIO_13
P1_29 = pin.P1_29  # GPIO_117
P1_30 = pin.P1_30  # GPIO_43
P1_31 = pin.P1_31  # GPIO_114
P1_32 = pin.P1_32  # GPIO_42
P1_33 = pin.P1_33  # GPIO_111
P1_34 = pin.P1_34  # GPIO_26
P1_35 = pin.P1_35  # GPIO_88
P1_36 = pin.P1_36  # GPIO_110


P2_1 = pin.P2_1  # GPIO_50
P2_2 = pin.P2_2  # GPIO_59
P2_3 = pin.P2_3  # GPIO_23
P2_4 = pin.P2_4  # GPIO_58
P2_5 = pin.P2_5  # GPIO_30
P2_6 = pin.P2_6  # GPIO_57
P2_7 = pin.P2_7  # GPIO_31
P2_8 = pin.P2_8  # GPIO_60
P2_9 = pin.P2_9  # GPIO_15
P2_10 = pin.P2_10  # GPIO_52
P2_11 = pin.P2_11  # GPIO_14
# P2_12 = SYS  PWR BTN
# P2_13 = SYS VOUT
# P2_14 = BAT VIN
# P2_15 = SYS GND
# P2_16 = BAT TEMP
P2_17 = pin.P2_17  # GPIO_65
P2_18 = pin.P2_18  # GPIO_47
P2_19 = pin.P2_19  # GPIO_27
P2_20 = pin.P2_20  # GPIO_64
# P2_21 = SYS GND
P2_22 = pin.P2_22  # GPIO_46
# P2_23 = SYS 3.3V
P2_24 = pin.P2_24  # GPIO_44
P2_25 = pin.P2_25  # GPIO_41
# P2_26 = SYS NRST
P2_27 = pin.P2_27  # GPIO_40
P2_28 = pin.P2_28  # GPIO_116
P2_29 = pin.P2_29  # GPIO_7
P2_30 = pin.P2_30  # GPIO_113
P2_31 = pin.P2_31  # GPIO_19
P2_32 = pin.P2_32  # GPIO_112
P2_33 = pin.P2_33  # GPIO_45
P2_34 = pin.P2_34  # GPIO_115
P2_35 = pin.P2_35  # GPIO_86
P2_36 = pin.P2_36  # AIN7

# common to all beagles
LED_USR0 = pin.USR0
LED_USR1 = pin.USR1
LED_USR2 = pin.USR2
LED_USR3 = pin.USR3

##########
# Refer to header default pin modes
# https://raw.githubusercontent.com/wiki/beagleboard/pocketbeagle/images/PocketBeagle_pinout.png

# I2C1 pins
# P2_11 (I2C1_SDA => SDA_1) data signal
# P2_9 (I2C1_SCL => SCL_1) clock signal
SDA_1 = pin.P2_11
SCL_1 = pin.P2_9

# I2C2 pins
# P1_26 (I2C2_SDA => SDA_2) data signal
# P1_28 (I2C2_SCL => SCL_2) clock signal
SDA_2 = pin.P1_26
SCL_2 = pin.P1_28

# SPI0 pins
# P1_6 (SPI0_CSO => CE0) enables peripheral device
# P1_12 (SPI0_MOSI => MOSI) outputs data to peripheral device
# P1_10 (SPIO_MISO => MISO) receives data from peripheral device
# P1_8 (SPI0_CLK => SCLK) outputs clock signal
CE0 = pin.P1_6
MOSI = pin.P1_12
MISO = pin.P1_10
SCLK = pin.P1_8
# CircuitPython naming convention for SPI Clock
SCK = SCLK

# SPI1 pins
# P2_31 (SPI1_CS1 => CE1) enables peripheral device
# P2_25 (SPI1_MOSI => MOSI) outputs data to peripheral device
# P2_27 (SPI1_MISO => MISO) receives data from peripheral device
# P2_29 (SPI1_CLK => SCLK) outputs clock signal
CE1 = pin.P2_31
MOSI_1 = pin.P2_25
MISO_1 = pin.P2_27
SCLK_1 = pin.P2_29
# CircuitPython naming convention for SPI Clock
SCK_1 = SCLK_1


# UART0
TX_0 = pin.P1_30
RX_0 = pin.P1_32

TX = TX_0
RX = RX_0


# UART2
# pins already in use by SPI0
# TX_2 = pin.P1_8
# RX_2 = pin.P1_10

# UART4
TX_4 = pin.P2_7
RX_4 = pin.P2_5


# ordered as spiId, sckId, mosiId, misoId
spiPorts = (
    (0, SCLK, MOSI, MISO),
    (1, SCLK_1, MOSI_1, MISO_1),
)

# ordered as uartId, txId, rxId
uartPorts = (
    (0, TX_0, RX_0),
    (4, TX_4, RX_4),
)

i2cPorts = (
    (1, SCL_1, SDA_1),
    (2, SCL_2, SDA_2),
)