658 lines
20 KiB
Go
658 lines
20 KiB
Go
// Copyright 2016 The Periph Authors. All rights reserved.
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// Use of this source code is governed under the Apache License, Version 2.0
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// that can be found in the LICENSE file.
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// Raspberry Pi pin out.
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package rpi
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import (
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"errors"
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"fmt"
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"os"
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"strconv"
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"periph.io/x/periph"
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"periph.io/x/periph/conn/gpio"
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"periph.io/x/periph/conn/pin"
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"periph.io/x/periph/conn/pin/pinreg"
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"periph.io/x/periph/host/bcm283x"
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"periph.io/x/periph/host/distro"
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)
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// Present returns true if running on a Raspberry Pi board.
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//
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// https://www.raspberrypi.org/
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func Present() bool {
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if isArm {
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// This is iffy at best.
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_, err := os.Stat("/sys/bus/platform/drivers/raspberrypi-firmware")
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return err == nil
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}
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return false
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}
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// Pin as connect on the 40 pins extension header.
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//
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// Schematics are useful to know what is connected to what:
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// https://www.raspberrypi.org/documentation/hardware/raspberrypi/schematics/README.md
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//
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// The actual pin mapping depends on the board revision! The default values are
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// set as the 40 pins header on Raspberry Pi 2 and Raspberry Pi 3.
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//
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// Some header info here: http://elinux.org/RPi_Low-level_peripherals
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//
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// P1 is also known as J8 on A+, B+, 2 and later.
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var (
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// Raspberry Pi A and B, 26 pin header:
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P1_1 pin.Pin = pin.V3_3 // max 30mA
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P1_2 pin.Pin = pin.V5 // (filtered)
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P1_3 gpio.PinIO = bcm283x.GPIO2 // High, I2C1_SDA
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P1_4 pin.Pin = pin.V5 //
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P1_5 gpio.PinIO = bcm283x.GPIO3 // High, I2C1_SCL
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P1_6 pin.Pin = pin.GROUND //
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P1_7 gpio.PinIO = bcm283x.GPIO4 // High, CLK0
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P1_8 gpio.PinIO = bcm283x.GPIO14 // Low, UART0_TX, UART1_TX
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P1_9 pin.Pin = pin.GROUND //
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P1_10 gpio.PinIO = bcm283x.GPIO15 // Low, UART0_RX, UART1_RX
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P1_11 gpio.PinIO = bcm283x.GPIO17 // Low, UART0_RTS, SPI1_CS1, UART1_RTS
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P1_12 gpio.PinIO = bcm283x.GPIO18 // Low, I2S_SCK, SPI1_CS0, PWM0
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P1_13 gpio.PinIO = bcm283x.GPIO27 // Low,
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P1_14 pin.Pin = pin.GROUND //
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P1_15 gpio.PinIO = bcm283x.GPIO22 // Low,
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P1_16 gpio.PinIO = bcm283x.GPIO23 // Low,
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P1_17 pin.Pin = pin.V3_3 //
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P1_18 gpio.PinIO = bcm283x.GPIO24 // Low,
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P1_19 gpio.PinIO = bcm283x.GPIO10 // Low, SPI0_MOSI
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P1_20 pin.Pin = pin.GROUND //
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P1_21 gpio.PinIO = bcm283x.GPIO9 // Low, SPI0_MISO
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P1_22 gpio.PinIO = bcm283x.GPIO25 // Low,
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P1_23 gpio.PinIO = bcm283x.GPIO11 // Low, SPI0_CLK
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P1_24 gpio.PinIO = bcm283x.GPIO8 // High, SPI0_CS0
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P1_25 pin.Pin = pin.GROUND //
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P1_26 gpio.PinIO = bcm283x.GPIO7 // High, SPI0_CS1
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// Raspberry Pi A+, B+, 2 and later, 40 pin header (also named J8):
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P1_27 gpio.PinIO = bcm283x.GPIO0 // High, I2C0_SDA used to probe for HAT EEPROM, see https://github.com/raspberrypi/hats
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P1_28 gpio.PinIO = bcm283x.GPIO1 // High, I2C0_SCL
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P1_29 gpio.PinIO = bcm283x.GPIO5 // High, CLK1
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P1_30 pin.Pin = pin.GROUND //
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P1_31 gpio.PinIO = bcm283x.GPIO6 // High, CLK2
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P1_32 gpio.PinIO = bcm283x.GPIO12 // Low, PWM0
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P1_33 gpio.PinIO = bcm283x.GPIO13 // Low, PWM1
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P1_34 pin.Pin = pin.GROUND //
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P1_35 gpio.PinIO = bcm283x.GPIO19 // Low, I2S_WS, SPI1_MISO, PWM1
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P1_36 gpio.PinIO = bcm283x.GPIO16 // Low, UART0_CTS, SPI1_CS2, UART1_CTS
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P1_37 gpio.PinIO = bcm283x.GPIO26 //
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P1_38 gpio.PinIO = bcm283x.GPIO20 // Low, I2S_DIN, SPI1_MOSI, CLK0
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P1_39 pin.Pin = pin.GROUND //
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P1_40 gpio.PinIO = bcm283x.GPIO21 // Low, I2S_DOUT, SPI1_CLK, CLK1
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// P5 header on Raspberry Pi A and B, PCB v2:
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P5_1 pin.Pin = pin.V5
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P5_2 pin.Pin = pin.V3_3
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P5_3 gpio.PinIO = bcm283x.GPIO28 // Float, I2C0_SDA, I2S_SCK
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P5_4 gpio.PinIO = bcm283x.GPIO29 // Float, I2C0_SCL, I2S_WS
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P5_5 gpio.PinIO = bcm283x.GPIO30 // Low, I2S_DIN, UART0_CTS, UART1_CTS
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P5_6 gpio.PinIO = bcm283x.GPIO31 // Low, I2S_DOUT, UART0_RTS, UART1_RTS
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P5_7 pin.Pin = pin.GROUND
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P5_8 pin.Pin = pin.GROUND
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AUDIO_RIGHT = bcm283x.GPIO40 // Low, PWM0, SPI2_MISO, UART1_TX
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AUDIO_LEFT = bcm283x.GPIO41 // Low, PWM1, SPI2_MOSI, UART1_RX
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HDMI_HOTPLUG_DETECT = bcm283x.GPIO46 // High,
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)
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// Pin as connected on the SODIMM header.
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//
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// Documentation is https://www.raspberrypi.org/documentation/hardware/computemodule/datasheets/rpi_DATA_CM_1p0.pdf
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//
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// There are some differences for CM3-Lite and CM1.
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var (
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SO_1 pin.Pin = pin.GROUND // GND
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SO_2 pin.Pin = pin.INVALID // EMMC_DISABLE_N
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SO_3 gpio.PinIO = bcm283x.GPIO0 // GPIO0
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SO_4 pin.Pin = pin.INVALID // NC, SDX_VDD, NC
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SO_5 gpio.PinIO = bcm283x.GPIO1 // GPIO1
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SO_6 pin.Pin = pin.INVALID // NC, SDX_VDD, NC
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SO_7 pin.Pin = pin.GROUND // GND
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SO_8 pin.Pin = pin.GROUND // GND
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SO_9 gpio.PinIO = bcm283x.GPIO2 // GPIO2
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SO_10 pin.Pin = pin.INVALID // NC, SDX_CLK, NC
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SO_11 gpio.PinIO = bcm283x.GPIO3 // GPIO3
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SO_12 pin.Pin = pin.INVALID // NC, SDX_CMD, NC
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SO_13 pin.Pin = pin.GROUND // GND
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SO_14 pin.Pin = pin.GROUND // GND
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SO_15 gpio.PinIO = bcm283x.GPIO4 // GPIO4
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SO_16 pin.Pin = pin.INVALID // NC, SDX_D0, NC
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SO_17 gpio.PinIO = bcm283x.GPIO5 // GPIO5
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SO_18 pin.Pin = pin.INVALID // NC, SDX_D1, NC
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SO_19 pin.Pin = pin.GROUND // GND
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SO_20 pin.Pin = pin.GROUND // GND
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SO_21 gpio.PinIO = bcm283x.GPIO6 // GPIO6
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SO_22 pin.Pin = pin.INVALID // NC, SDX_D2, NC
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SO_23 gpio.PinIO = bcm283x.GPIO7 // GPIO7
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SO_24 pin.Pin = pin.INVALID // NC, SDX_D3, NC
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SO_25 pin.Pin = pin.GROUND // GND
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SO_26 pin.Pin = pin.GROUND // GND
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SO_27 gpio.PinIO = bcm283x.GPIO8 // GPIO8
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SO_28 gpio.PinIO = bcm283x.GPIO28 // GPIO28
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SO_29 gpio.PinIO = bcm283x.GPIO9 // GPIO9
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SO_30 gpio.PinIO = bcm283x.GPIO29 // GPIO29
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SO_31 pin.Pin = pin.GROUND // GND
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SO_32 pin.Pin = pin.GROUND // GND
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SO_33 gpio.PinIO = bcm283x.GPIO10 // GPIO10
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SO_34 gpio.PinIO = bcm283x.GPIO30 // GPIO30
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SO_35 gpio.PinIO = bcm283x.GPIO11 // GPIO11
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SO_36 gpio.PinIO = bcm283x.GPIO31 // GPIO31
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SO_37 pin.Pin = pin.GROUND // GND
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SO_38 pin.Pin = pin.GROUND // GND
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SO_39 pin.Pin = pin.DC_IN // GPIO0-27_VDD
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SO_40 pin.Pin = pin.DC_IN // GPIO0-27_VDD
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SO_41 pin.Pin = pin.DC_IN // GPIO28-45_VDD
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SO_42 pin.Pin = pin.DC_IN // GPIO28-45_VDD
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SO_43 pin.Pin = pin.GROUND // GND
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SO_44 pin.Pin = pin.GROUND // GND
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SO_45 gpio.PinIO = bcm283x.GPIO12 // GPIO12
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SO_46 gpio.PinIO = bcm283x.GPIO32 // GPIO32
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SO_47 gpio.PinIO = bcm283x.GPIO13 // GPIO13
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SO_48 gpio.PinIO = bcm283x.GPIO33 // GPIO33
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SO_49 pin.Pin = pin.GROUND // GND
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SO_50 pin.Pin = pin.GROUND // GND
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SO_51 gpio.PinIO = bcm283x.GPIO14 // GPIO14
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SO_52 gpio.PinIO = bcm283x.GPIO34 // GPIO34
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SO_53 gpio.PinIO = bcm283x.GPIO15 // GPIO15
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SO_54 gpio.PinIO = bcm283x.GPIO35 // GPIO35
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SO_55 pin.Pin = pin.GROUND // GND
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SO_56 pin.Pin = pin.GROUND // GND
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SO_57 gpio.PinIO = bcm283x.GPIO16 // GPIO16
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SO_58 gpio.PinIO = bcm283x.GPIO36 // GPIO36
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SO_59 gpio.PinIO = bcm283x.GPIO17 // GPIO17
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SO_60 gpio.PinIO = bcm283x.GPIO37 // GPIO37
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SO_61 pin.Pin = pin.GROUND // GND
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SO_62 pin.Pin = pin.GROUND // GND
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SO_63 gpio.PinIO = bcm283x.GPIO18 // GPIO18
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SO_64 gpio.PinIO = bcm283x.GPIO38 // GPIO38
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SO_65 gpio.PinIO = bcm283x.GPIO19 // GPIO19
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SO_66 gpio.PinIO = bcm283x.GPIO39 // GPIO39
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SO_67 pin.Pin = pin.GROUND // GND
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SO_68 pin.Pin = pin.GROUND // GND
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SO_69 gpio.PinIO = bcm283x.GPIO20 // GPIO20
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SO_70 gpio.PinIO = bcm283x.GPIO40 // GPIO40
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SO_71 gpio.PinIO = bcm283x.GPIO21 // GPIO21
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SO_72 gpio.PinIO = bcm283x.GPIO41 // GPIO41
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SO_73 pin.Pin = pin.GROUND // GND
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SO_74 pin.Pin = pin.GROUND // GND
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SO_75 gpio.PinIO = bcm283x.GPIO22 // GPIO22
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SO_76 gpio.PinIO = bcm283x.GPIO42 // GPIO42
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SO_77 gpio.PinIO = bcm283x.GPIO23 // GPIO23
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SO_78 gpio.PinIO = bcm283x.GPIO43 // GPIO43
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SO_79 pin.Pin = pin.GROUND // GND
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SO_80 pin.Pin = pin.GROUND // GND
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SO_81 gpio.PinIO = bcm283x.GPIO24 // GPIO24
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SO_82 gpio.PinIO = bcm283x.GPIO44 // GPIO44
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SO_83 gpio.PinIO = bcm283x.GPIO25 // GPIO25
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SO_84 gpio.PinIO = bcm283x.GPIO45 // GPIO45
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SO_85 pin.Pin = pin.GROUND // GND
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SO_86 pin.Pin = pin.GROUND // GND
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SO_87 gpio.PinIO = bcm283x.GPIO26 // GPIO26
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SO_88 pin.Pin = pin.INVALID // HDMI_HPD_N_1V8, HDMI_HPD_N_1V8, GPIO46_1V8
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SO_89 gpio.PinIO = bcm283x.GPIO27 // GPIO27
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SO_90 pin.Pin = pin.INVALID // EMMC_EN_N_1V8, EMMC_EN_N_1V8, GPIO47_1V8
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SO_91 pin.Pin = pin.GROUND // GND
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SO_92 pin.Pin = pin.GROUND // GND
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SO_93 pin.Pin = pin.INVALID // DSI0_DN1
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SO_94 pin.Pin = pin.INVALID // DSI1_DP0
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SO_95 pin.Pin = pin.INVALID // DSI0_DP1
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SO_96 pin.Pin = pin.INVALID // DSI1_DN0
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SO_97 pin.Pin = pin.GROUND // GND
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SO_98 pin.Pin = pin.GROUND // GND
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SO_99 pin.Pin = pin.INVALID // DSI0_DN0
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SO_100 pin.Pin = pin.INVALID // DSI1_CP
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SO_101 pin.Pin = pin.INVALID // DSI0_DP0
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SO_102 pin.Pin = pin.INVALID // DSI1_CN
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SO_103 pin.Pin = pin.GROUND // GND
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SO_104 pin.Pin = pin.GROUND // GND
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SO_105 pin.Pin = pin.INVALID // DSI0_CN
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SO_106 pin.Pin = pin.INVALID // DSI1_DP3
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SO_107 pin.Pin = pin.INVALID // DSI0_CP
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SO_108 pin.Pin = pin.INVALID // DSI1_DN3
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SO_109 pin.Pin = pin.GROUND // GND
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SO_110 pin.Pin = pin.GROUND // GND
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SO_111 pin.Pin = pin.INVALID // HDMI_CLK_N
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SO_112 pin.Pin = pin.INVALID // DSI1_DP2
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SO_113 pin.Pin = pin.INVALID // HDMI_CLK_P
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SO_114 pin.Pin = pin.INVALID // DSI1_DN2
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SO_115 pin.Pin = pin.GROUND // GND
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SO_116 pin.Pin = pin.GROUND // GND
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SO_117 pin.Pin = pin.INVALID // HDMI_D0_N
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SO_118 pin.Pin = pin.INVALID // DSI1_DP1
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SO_119 pin.Pin = pin.INVALID // HDMI_D0_P
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SO_120 pin.Pin = pin.INVALID // DSI1_DN1
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SO_121 pin.Pin = pin.GROUND // GND
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SO_122 pin.Pin = pin.GROUND // GND
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SO_123 pin.Pin = pin.INVALID // HDMI_D1_N
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SO_124 pin.Pin = pin.INVALID // NC
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SO_125 pin.Pin = pin.INVALID // HDMI_D1_P
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SO_126 pin.Pin = pin.INVALID // NC
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SO_127 pin.Pin = pin.GROUND // GND
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SO_128 pin.Pin = pin.INVALID // NC
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SO_129 pin.Pin = pin.INVALID // HDMI_D2_N
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SO_130 pin.Pin = pin.INVALID // NC
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SO_131 pin.Pin = pin.INVALID // HDMI_D2_P
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SO_132 pin.Pin = pin.INVALID // NC
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SO_133 pin.Pin = pin.GROUND // GND
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SO_134 pin.Pin = pin.GROUND // GND
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SO_135 pin.Pin = pin.INVALID // CAM1_DP3
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SO_136 pin.Pin = pin.INVALID // CAM0_DP0
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SO_137 pin.Pin = pin.INVALID // CAM1_DN3
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SO_138 pin.Pin = pin.INVALID // CAM0_DN0
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SO_139 pin.Pin = pin.GROUND // GND
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SO_140 pin.Pin = pin.GROUND // GND
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SO_141 pin.Pin = pin.INVALID // CAM1_DP2
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SO_142 pin.Pin = pin.INVALID // CAM0_CP
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SO_143 pin.Pin = pin.INVALID // CAM1_DN2
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SO_144 pin.Pin = pin.INVALID // CAM0_CN
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SO_145 pin.Pin = pin.GROUND // GND
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SO_146 pin.Pin = pin.GROUND // GND
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SO_147 pin.Pin = pin.INVALID // CAM1_CP
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SO_148 pin.Pin = pin.INVALID // CAM0_DP1
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SO_149 pin.Pin = pin.INVALID // CAM1_CN
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SO_150 pin.Pin = pin.INVALID // CAM0_DN1
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SO_151 pin.Pin = pin.GROUND // GND
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SO_152 pin.Pin = pin.GROUND // GND
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SO_153 pin.Pin = pin.INVALID // CAM1_DP1
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SO_154 pin.Pin = pin.INVALID // NC
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SO_155 pin.Pin = pin.INVALID // CAM1_DN1
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SO_156 pin.Pin = pin.INVALID // NC
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SO_157 pin.Pin = pin.GROUND // GND
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SO_158 pin.Pin = pin.INVALID // NC
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SO_159 pin.Pin = pin.INVALID // CAM1_DP0
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SO_160 pin.Pin = pin.INVALID // NC
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SO_161 pin.Pin = pin.INVALID // CAM1_DN0
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SO_162 pin.Pin = pin.INVALID // NC
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SO_163 pin.Pin = pin.GROUND // GND
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SO_164 pin.Pin = pin.GROUND // GND
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SO_165 pin.Pin = pin.INVALID // USB_DP
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SO_166 pin.Pin = pin.INVALID // TVDAC
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SO_167 pin.Pin = pin.INVALID // USB_DM
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SO_168 pin.Pin = pin.INVALID // USB_OTGID
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SO_169 pin.Pin = pin.GROUND // GND
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SO_170 pin.Pin = pin.GROUND // GND
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SO_171 pin.Pin = pin.INVALID // HDMI_CEC
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SO_172 pin.Pin = pin.INVALID // VC_TRST_N
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SO_173 pin.Pin = pin.INVALID // HDMI_SDA
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SO_174 pin.Pin = pin.INVALID // VC_TDI
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SO_175 pin.Pin = pin.INVALID // HDMI_SCL
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SO_176 pin.Pin = pin.INVALID // VC_TMS
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SO_177 pin.Pin = pin.INVALID // RUN
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SO_178 pin.Pin = pin.INVALID // VC_TDO
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SO_179 pin.Pin = pin.INVALID // VDD_CORE (DO NOT CONNECT)
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SO_180 pin.Pin = pin.INVALID // VC_TCK
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SO_181 pin.Pin = pin.GROUND // GND
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SO_182 pin.Pin = pin.GROUND // GND
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SO_183 pin.Pin = pin.V1_8 // 1V8
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SO_184 pin.Pin = pin.V1_8 // 1V8
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SO_185 pin.Pin = pin.V1_8 // 1V8
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SO_186 pin.Pin = pin.V1_8 // 1V8
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SO_187 pin.Pin = pin.GROUND // GND
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SO_188 pin.Pin = pin.GROUND // GND
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SO_189 pin.Pin = pin.DC_IN // VDAC
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SO_190 pin.Pin = pin.DC_IN // VDAC
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SO_191 pin.Pin = pin.V3_3 // 3V3
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SO_192 pin.Pin = pin.V3_3 // 3V3
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SO_193 pin.Pin = pin.V3_3 // 3V3
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SO_194 pin.Pin = pin.V3_3 // 3V3
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SO_195 pin.Pin = pin.GROUND // GND
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SO_196 pin.Pin = pin.GROUND // GND
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SO_197 pin.Pin = pin.DC_IN // VBAT
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SO_198 pin.Pin = pin.DC_IN // VBAT
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SO_199 pin.Pin = pin.DC_IN // VBAT
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SO_200 pin.Pin = pin.DC_IN // VBAT
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)
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// driver implements periph.Driver.
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type driver struct {
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}
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func (d *driver) String() string {
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return "rpi"
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}
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func (d *driver) Prerequisites() []string {
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return nil
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}
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func (d *driver) After() []string {
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return []string{"bcm283x-gpio"}
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}
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func (d *driver) Init() (bool, error) {
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if !Present() {
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return false, errors.New("Raspberry Pi board not detected")
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}
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// Setup headers based on board revision.
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//
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// This code is not futureproof, it will error out on a Raspberry Pi 4
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// whenever it comes out.
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// Revision codes from: http://elinux.org/RPi_HardwareHistory
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has26PinP1Header := false
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has40PinP1Header := false
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hasP5Header := false
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hasAudio := false
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hasNewAudio := false
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hasHDMI := false
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hasSODimm := false
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rev := distro.CPUInfo()["Revision"]
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if i, err := strconv.ParseInt(rev, 16, 32); err == nil {
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// Ignore the overclock bit.
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i &= 0xFFFFFF
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switch i {
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case 0x0002, 0x0003: // B v1.0
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has26PinP1Header = true
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hasAudio = true
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case 0x0004, 0x0005, 0x0006, // B v2.0
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0x0007, 0x0008, 0x0009, // A v2.0
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0x000d, 0x000e, 0x000f: // B v2.0
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has26PinP1Header = true
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// Only the v2 PCB has the P5 header.
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hasP5Header = true
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hasAudio = true
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hasHDMI = true
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case 0x0010, // B+ v1.0
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|
0x0012, // A+ v1.1
|
|
0x0013, // B+ v1.2
|
|
0x0015, // A+ v1.1
|
|
0x90021, // A+ v1.1
|
|
0x90032, // B+ v1.2
|
|
0xa01040, // 2 Model B v1.0
|
|
0xa01041, 0xa21041, // 2 Model B v1.1
|
|
0xa22042: // 2 Model B v1.2
|
|
has40PinP1Header = true
|
|
hasAudio = true
|
|
hasHDMI = true
|
|
case 0x900092, // Zero v1.2
|
|
0x900093, // Zero v1.3
|
|
0x920093, // Zero v1.3
|
|
0x9000c1: // Zero W v1.1
|
|
has40PinP1Header = true
|
|
hasHDMI = true
|
|
case 0x0011, // Compute Module 1
|
|
0x0014: // Compute Module 1
|
|
// SODIMM not defined
|
|
case 0xa020a0: // Compute Module 3 v1.0
|
|
hasSODimm = true
|
|
// tell CM3 and CM3-Lite apart, if possible
|
|
case 0xa02082, 0xa22082, 0xa32082, 0xa020d3: // 3 Model B v1.2, B+
|
|
has40PinP1Header = true
|
|
hasAudio = true
|
|
hasNewAudio = true
|
|
hasHDMI = true
|
|
default:
|
|
return true, fmt.Errorf("rpi: unknown hardware version: 0x%x", i)
|
|
}
|
|
} else {
|
|
return true, fmt.Errorf("rpi: failed to read cpu_info: %v", err)
|
|
}
|
|
|
|
if has26PinP1Header {
|
|
if err := pinreg.Register("P1", [][]pin.Pin{
|
|
{P1_1, P1_2},
|
|
{P1_3, P1_4},
|
|
{P1_5, P1_6},
|
|
{P1_7, P1_8},
|
|
{P1_9, P1_10},
|
|
{P1_11, P1_12},
|
|
{P1_13, P1_14},
|
|
{P1_15, P1_16},
|
|
{P1_17, P1_18},
|
|
{P1_19, P1_20},
|
|
{P1_21, P1_22},
|
|
{P1_23, P1_24},
|
|
{P1_25, P1_26},
|
|
}); err != nil {
|
|
return true, err
|
|
}
|
|
|
|
// TODO(maruel): Models from 2012 and earlier have P1_3=GPIO0, P1_5=GPIO1 and P1_13=GPIO21.
|
|
// P2 and P3 are not useful.
|
|
// P6 has a RUN pin for reset but it's not available after Pi version 1.
|
|
P1_27 = gpio.INVALID
|
|
P1_28 = gpio.INVALID
|
|
P1_29 = gpio.INVALID
|
|
P1_30 = pin.INVALID
|
|
P1_31 = gpio.INVALID
|
|
P1_32 = gpio.INVALID
|
|
P1_33 = gpio.INVALID
|
|
P1_34 = pin.INVALID
|
|
P1_35 = gpio.INVALID
|
|
P1_36 = gpio.INVALID
|
|
P1_37 = gpio.INVALID
|
|
P1_38 = gpio.INVALID
|
|
P1_39 = pin.INVALID
|
|
P1_40 = gpio.INVALID
|
|
} else if has40PinP1Header {
|
|
if err := pinreg.Register("P1", [][]pin.Pin{
|
|
{P1_1, P1_2},
|
|
{P1_3, P1_4},
|
|
{P1_5, P1_6},
|
|
{P1_7, P1_8},
|
|
{P1_9, P1_10},
|
|
{P1_11, P1_12},
|
|
{P1_13, P1_14},
|
|
{P1_15, P1_16},
|
|
{P1_17, P1_18},
|
|
{P1_19, P1_20},
|
|
{P1_21, P1_22},
|
|
{P1_23, P1_24},
|
|
{P1_25, P1_26},
|
|
{P1_27, P1_28},
|
|
{P1_29, P1_30},
|
|
{P1_31, P1_32},
|
|
{P1_33, P1_34},
|
|
{P1_35, P1_36},
|
|
{P1_37, P1_38},
|
|
{P1_39, P1_40},
|
|
}); err != nil {
|
|
return true, err
|
|
}
|
|
} else {
|
|
P1_1 = pin.INVALID
|
|
P1_2 = pin.INVALID
|
|
P1_3 = gpio.INVALID
|
|
P1_4 = pin.INVALID
|
|
P1_5 = gpio.INVALID
|
|
P1_6 = pin.INVALID
|
|
P1_7 = gpio.INVALID
|
|
P1_8 = gpio.INVALID
|
|
P1_9 = pin.INVALID
|
|
P1_10 = gpio.INVALID
|
|
P1_11 = gpio.INVALID
|
|
P1_12 = gpio.INVALID
|
|
P1_13 = gpio.INVALID
|
|
P1_14 = pin.INVALID
|
|
P1_15 = gpio.INVALID
|
|
P1_16 = gpio.INVALID
|
|
P1_17 = pin.INVALID
|
|
P1_18 = gpio.INVALID
|
|
P1_19 = gpio.INVALID
|
|
P1_20 = pin.INVALID
|
|
P1_21 = gpio.INVALID
|
|
P1_22 = gpio.INVALID
|
|
P1_23 = gpio.INVALID
|
|
P1_24 = gpio.INVALID
|
|
P1_25 = pin.INVALID
|
|
P1_26 = gpio.INVALID
|
|
P1_27 = gpio.INVALID
|
|
P1_28 = gpio.INVALID
|
|
P1_29 = gpio.INVALID
|
|
P1_30 = pin.INVALID
|
|
P1_31 = gpio.INVALID
|
|
P1_32 = gpio.INVALID
|
|
P1_33 = gpio.INVALID
|
|
P1_34 = pin.INVALID
|
|
P1_35 = gpio.INVALID
|
|
P1_36 = gpio.INVALID
|
|
P1_37 = gpio.INVALID
|
|
P1_38 = gpio.INVALID
|
|
P1_39 = pin.INVALID
|
|
P1_40 = gpio.INVALID
|
|
}
|
|
|
|
// Only the A and B v2 PCB has the P5 header.
|
|
if hasP5Header {
|
|
if err := pinreg.Register("P5", [][]pin.Pin{
|
|
{P5_1, P5_2},
|
|
{P5_3, P5_4},
|
|
{P5_5, P5_6},
|
|
{P5_7, P5_8},
|
|
}); err != nil {
|
|
return true, err
|
|
}
|
|
} else {
|
|
P5_1 = pin.INVALID
|
|
P5_2 = pin.INVALID
|
|
P5_3 = gpio.INVALID
|
|
P5_4 = gpio.INVALID
|
|
P5_5 = gpio.INVALID
|
|
P5_6 = gpio.INVALID
|
|
P5_7 = pin.INVALID
|
|
P5_8 = pin.INVALID
|
|
}
|
|
|
|
if hasSODimm {
|
|
if err := pinreg.Register("SO", [][]pin.Pin{
|
|
{SO_1, SO_2},
|
|
{SO_3, SO_4},
|
|
{SO_5, SO_6},
|
|
{SO_7, SO_8},
|
|
{SO_9, SO_10},
|
|
{SO_11, SO_12},
|
|
{SO_13, SO_14},
|
|
{SO_15, SO_16},
|
|
{SO_17, SO_18},
|
|
{SO_19, SO_20},
|
|
{SO_21, SO_22},
|
|
{SO_23, SO_24},
|
|
{SO_25, SO_26},
|
|
{SO_27, SO_28},
|
|
{SO_29, SO_30},
|
|
{SO_31, SO_32},
|
|
{SO_33, SO_34},
|
|
{SO_35, SO_36},
|
|
{SO_37, SO_38},
|
|
{SO_39, SO_40},
|
|
{SO_41, SO_42},
|
|
{SO_43, SO_44},
|
|
{SO_45, SO_46},
|
|
{SO_47, SO_48},
|
|
{SO_49, SO_50},
|
|
{SO_51, SO_52},
|
|
{SO_53, SO_54},
|
|
{SO_55, SO_56},
|
|
{SO_57, SO_58},
|
|
{SO_59, SO_60},
|
|
{SO_61, SO_62},
|
|
{SO_63, SO_64},
|
|
{SO_65, SO_66},
|
|
{SO_67, SO_68},
|
|
{SO_69, SO_70},
|
|
{SO_71, SO_72},
|
|
{SO_73, SO_74},
|
|
{SO_75, SO_76},
|
|
{SO_77, SO_78},
|
|
{SO_79, SO_80},
|
|
{SO_81, SO_82},
|
|
{SO_83, SO_84},
|
|
{SO_85, SO_86},
|
|
{SO_87, SO_88},
|
|
{SO_89, SO_90},
|
|
{SO_91, SO_92},
|
|
{SO_93, SO_94},
|
|
{SO_95, SO_96},
|
|
{SO_97, SO_98},
|
|
{SO_99, SO_100},
|
|
{SO_101, SO_102},
|
|
{SO_103, SO_104},
|
|
{SO_105, SO_106},
|
|
{SO_107, SO_108},
|
|
{SO_109, SO_110},
|
|
{SO_111, SO_112},
|
|
{SO_113, SO_114},
|
|
{SO_115, SO_116},
|
|
{SO_117, SO_118},
|
|
{SO_119, SO_120},
|
|
{SO_121, SO_122},
|
|
{SO_123, SO_124},
|
|
{SO_125, SO_126},
|
|
{SO_127, SO_128},
|
|
{SO_129, SO_130},
|
|
{SO_131, SO_132},
|
|
{SO_133, SO_134},
|
|
{SO_135, SO_136},
|
|
{SO_137, SO_138},
|
|
{SO_139, SO_140},
|
|
{SO_141, SO_142},
|
|
{SO_143, SO_144},
|
|
{SO_145, SO_146},
|
|
{SO_147, SO_148},
|
|
{SO_149, SO_150},
|
|
{SO_151, SO_152},
|
|
{SO_153, SO_154},
|
|
{SO_155, SO_156},
|
|
{SO_157, SO_158},
|
|
{SO_159, SO_160},
|
|
{SO_161, SO_162},
|
|
{SO_163, SO_164},
|
|
{SO_165, SO_166},
|
|
{SO_167, SO_168},
|
|
{SO_169, SO_170},
|
|
{SO_171, SO_172},
|
|
{SO_173, SO_174},
|
|
{SO_175, SO_176},
|
|
{SO_177, SO_178},
|
|
{SO_179, SO_180},
|
|
{SO_181, SO_182},
|
|
{SO_183, SO_184},
|
|
{SO_185, SO_186},
|
|
{SO_187, SO_188},
|
|
{SO_189, SO_190},
|
|
{SO_191, SO_192},
|
|
{SO_193, SO_194},
|
|
{SO_195, SO_196},
|
|
{SO_197, SO_198},
|
|
{SO_199, SO_200},
|
|
}); err != nil {
|
|
return true, err
|
|
}
|
|
}
|
|
|
|
if hasAudio {
|
|
if !hasNewAudio {
|
|
AUDIO_LEFT = bcm283x.GPIO45 // PWM1
|
|
}
|
|
if err := pinreg.Register("AUDIO", [][]pin.Pin{
|
|
{AUDIO_LEFT},
|
|
{AUDIO_RIGHT},
|
|
}); err != nil {
|
|
return true, err
|
|
}
|
|
}
|
|
|
|
if hasHDMI {
|
|
if err := pinreg.Register("HDMI", [][]pin.Pin{{HDMI_HOTPLUG_DETECT}}); err != nil {
|
|
return true, err
|
|
}
|
|
}
|
|
return true, nil
|
|
}
|
|
|
|
func init() {
|
|
if isArm {
|
|
periph.MustRegister(&drv)
|
|
}
|
|
}
|
|
|
|
var drv driver
|