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raspberry_pi_revision.sh
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raspberry_pi_revision.sh
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#!/bin/bash
function run_rpifinder()
{
# Learn about our user's RPi hardware configuration by reading the revision number stored in '/proc/cpuinfo'
# Get revision number
#local HEXREVISION="$1" # uncomment this (and comment-out the line below this) if you want to pass revision numbers to this script instead of auto-detecting
local HEXREVISION=$(cat /proc/cpuinfo | grep Revision | cut -d ' ' -f 2) # Get revision number from cpuinfo (revision number is in hex)
# Convert revision number into a 32 bit binary string with leading zero's (name it "REVCODE")
local BINREVISION=$(echo "obase=2; ibase=16; ${HEXREVISION^^}" | bc) # Convert revision number from hex to binary (bc needs upper-case)
local COUNTBITS=${#BINREVISION}
if (( "$COUNTBITS" < "32" )); then # If the revision number is not 32 bits long, add leading zero's to it - Note: $(printf "%032d\n" $BINREVISION) doesn't work with large numbers
local ZEROSNEEDED=$((32-COUNTBITS))
local LEADINGZEROS=$(printf "%0${ZEROSNEEDED}d\n" 0)
local REVCODE=${LEADINGZEROS}${BINREVISION}
elif (( "$COUNTBITS" == "32" )); then
REVCODE=${BINREVISION}
else
echo "Something went wrong with calculating the Pi's revision number."
run_giveup
fi
# Parse $REVCODE (find substrings, determine new-format vs old-format, decipher/store info in variables, print info for the user).
# Now that REVCODE is readable in binary, create hexadecimal substrings from it.
# New-style revision codes: NOQuuuWwFMMMCCCCPPPPTTTTTTTTRRRR
# - https://www.raspberrypi.com/documentation/computers/raspberry-pi.html
# - https://github.com/raspberrypi/documentation/blob/develop/documentation/asciidoc/computers/raspberry-pi/revision-codes.adoc
# If a is constant, b=${a:12:5} does substring extraction where 12 is the offset (zero-based) and 5 is the length.
# - https://stackoverflow.com/questions/428109/extract-substring-in-bash
local N=${REVCODE:0:1} # Overvoltage (0: Overvoltage allowed, 1: Overvoltage disallowed)
local O=${REVCODE:1:1} # OTP Program (0: OTP programming allowed, 1: OTP programming disallowed)
local Q=${REVCODE:2:1} # OTP Read (0: OTP reading allowed, 1: OTP reading disallowed)
#local uuu=$(echo "obase=16; ibase=2; ${REVCODE:3:3}" | bc) # Unused bits
local W=${REVCODE:6:1} # Warranty bit [starting with RPi2/Zero] (0: Warranty is intact, 1: Warranty has been voided by overclocking)
local w=${REVCODE:7:1} # Unused bit [starting with RPi2/Zero] / warranty bit [prior to RPi2/Zero]
local F=${REVCODE:8:1} # New flag (1: new-style revision, 0: old-style revision)
local MMM=$(echo "obase=16; ibase=2; ${REVCODE:9:3}" | bc) # Memory size (0: 256MB, 1: 512MB, 2: 1GB, 3: 2GB, 4: 4GB, 5: 8GB)
local CCCC=$(echo "obase=16; ibase=2; ${REVCODE:12:4}" | bc) # Manufacturer (0: Sony UK, 1: Egoman, 2: Embest, 3: Sony Japan, 4: Embest, 5: Stadium)
local PPPP=$(echo "obase=16; ibase=2; ${REVCODE:16:4}" | bc) # Processor (0: BCM2835, 1: BCM2836, 2: BCM2837, 3: BCM2711)
local TTTTTTTT=$(echo "obase=16; ibase=2; ${REVCODE:20:8}" | bc) # Type (0: A, 1: B, 2: A+, 3: B+, 4: 2B, 5: Alpha (early prototype), 6: CM1, 8: 3B,
# 9: Zero, A: CM3, C: Zero W, D: 3B+, E: 3A+, F: Internal use only, 10: CM3+,
# 11: 4B, 12: Zero 2 W, 13: 400, 14: CM4)
local RRRR=$(echo "obase=16; ibase=2; ${REVCODE:28:4}" | bc) # Revision (0, 1, 2, etc.)
# Zero-out our variables in case this function runs twice (this step might be redundant)
PI_OVERVOLTAGE=""
PI_OTPPROGRAM=""
PI_OTPREAD=""
PI_WARRANTY=""
PI_RAM=""
PI_MANUFACTURER=""
PI_PROCESSOR=""
PI_TYPE=""
PI_REVISION=""
if [ "$F" = "0" ]; then
# Old-style revision codes [Leading 0x100 = warranty is void from overclocking (the "w" binary bit is set)]:
case $HEXREVISION in
"0002" | "1000002")
PI_TYPE="1B"
PI_REVISION="1.0"
PI_RAM="256MB"
PI_MANUFACTURER="Egoman"
;;
"0003" | "1000003")
PI_TYPE="1B"
PI_REVISION="1.0"
PI_RAM="256MB"
PI_MANUFACTURER="Egoman"
;;
"0004" | "1000004")
PI_TYPE="1B"
PI_REVISION="2.0"
PI_RAM="256MB"
PI_MANUFACTURER="Sony UK"
;;
"0005" | "1000005")
PI_TYPE="1B"
PI_REVISION="2.0"
PI_RAM="256MB"
PI_MANUFACTURER="Qisda"
;;
"0006" | "1000006")
PI_TYPE="1B"
PI_REVISION="2.0"
PI_RAM="256MB"
PI_MANUFACTURER="Egoman"
;;
"0007" | "1000007")
PI_TYPE="1A"
PI_REVISION="2.0"
PI_RAM="256MB"
PI_MANUFACTURER="Egoman"
;;
"0008" | "1000008")
PI_TYPE="1A"
PI_REVISION="2.0"
PI_RAM="256MB"
PI_MANUFACTURER="Sony UK"
;;
"0009" | "1000009")
PI_TYPE="1A"
PI_REVISION="2.0"
PI_RAM="256MB"
PI_MANUFACTURER="Qisda"
;;
"000d" | "100000d")
PI_TYPE="1B"
PI_REVISION="2.0"
PI_RAM="512MB"
PI_MANUFACTURER="Egoman"
;;
"000e" | "100000e")
PI_TYPE="1B"
PI_REVISION="2.0"
PI_RAM="512MB"
PI_MANUFACTURER="Sony UK"
;;
"000f" | "100000f")
PI_TYPE="1B"
PI_REVISION="2.0"
PI_RAM="512MB"
PI_MANUFACTURER="Egoman"
;;
"0010" | "1000010")
PI_TYPE="1B+"
PI_REVISION="1.2"
PI_RAM="512MB"
PI_MANUFACTURER="Sony UK"
;;
"0011" | "1000011")
PI_TYPE="CM1"
PI_REVISION="1.0"
PI_RAM="512MB"
PI_MANUFACTURER="Sony UK"
;;
"0012" | "1000012")
PI_TYPE="1A+"
PI_REVISION="1.1"
PI_RAM="256MB"
PI_MANUFACTURER="Sony UK"
;;
"0013" | "1000013")
PI_TYPE="1B+"
PI_REVISION="1.2"
PI_RAM="512MB"
PI_MANUFACTURER="Embest"
;;
"0014" | "1000014")
PI_TYPE="CM1"
PI_REVISION="1.0"
PI_RAM="512MB"
PI_MANUFACTURER="Embest"
;;
"0015" | "1000015")
PI_TYPE="1A+"
PI_REVISION="1.1"
PI_RAM="256MB/512MB"
PI_MANUFACTURER="Embest"
;;
*)
PI_TYPE="UNKNOWN"
PI_REVISION="UNKNOWN"
PI_RAM="UNKNOWN"
PI_MANUFACTURER="UNKNOWN"
echo "ERROR: Unable to parse Raspberry Pi old-style revision code."
run_giveup
;;
esac
case $w in
"0")
PI_WARRANTY="intact"
;;
"1")
PI_WARRANTY="voided by overclocking"
;;
*)
PI_WARRANTY="UNKNOWN"
echo "ERROR: Unable to parse Raspberry Pi old-style overclock/warranty code."
run_giveup
;;
esac
echo -e "\nRaspberry Pi Model ${PI_TYPE} Rev ${PI_REVISION} with ${PI_RAM} of RAM. Manufactured by ${PI_MANUFACTURER}."
echo "(Warranty ${PI_WARRANTY})"
elif [ "$F" = "1" ]; then
# New-style revision codes:
case $N in
"0")
PI_OVERVOLTAGE="allowed"
;;
"1")
PI_OVERVOLTAGE="disallowed"
;;
*)
PI_OVERVOLTAGE="UNKNOWN"
echo "ERROR: Unable to parse Raspberry Pi overvoltage allowance bit."
run_giveup
;;
esac
case $O in
"0")
PI_OTPPROGRAM="allowed"
;;
"1")
PI_OTPPROGRAM="disallowed"
;;
*)
PI_OTPPROGRAM="UNKNOWN"
echo "ERROR: Unable to parse Raspberry Pi OTP programming allowance bit."
run_giveup
;;
esac
case $Q in
"0")
PI_OTPREAD="allowed"
;;
"1")
PI_OTPREAD="disallowed"
;;
*)
PI_OTPREAD="UNKNOWN"
echo "ERROR: Unable to parse Raspberry Pi OTP reading allowance bit."
run_giveup
;;
esac
case $W in
"0")
PI_WARRANTY="intact"
;;
"1")
PI_WARRANTY="voided by overclocking"
;;
*)
PI_WARRANTY="UNKNOWN"
echo "ERROR: Unable to parse Raspberry Pi new-style overclock/warranty code."
run_giveup
;;
esac
case $MMM in
"0")
PI_RAM="256MB"
;;
"1")
PI_RAM="512MB"
;;
"2")
PI_RAM="1GB"
;;
"3")
PI_RAM="2GB"
;;
"4")
PI_RAM="4GB"
;;
"5")
PI_RAM="8GB"
;;
*)
PI_RAM="UNKNOWN"
echo "ERROR: Unable to parse Raspberry Pi RAM type code."
run_giveup
;;
esac
case $CCCC in
"0")
PI_MANUFACTURER="Sony UK"
;;
"1")
PI_MANUFACTURER="Egoman"
;;
"2")
PI_MANUFACTURER="Embest"
;;
"3")
PI_MANUFACTURER="Sony Japan"
;;
"4")
PI_MANUFACTURER="Embest"
;;
"5")
PI_MANUFACTURER="Stadium"
;;
*)
PI_MANUFACTURER="UNKNOWN"
echo "ERROR: Unable to parse Raspberry Pi manufacturer code."
run_giveup
;;
esac
case $PPPP in
"0")
PI_PROCESSOR="BCM2835"
;;
"1")
PI_PROCESSOR="BCM2836"
;;
"2")
PI_PROCESSOR="BCM2837"
;;
"3")
PI_PROCESSOR="BCM2711"
;;
*)
PI_PROCESSOR="UNKNOWN"
echo "ERROR: Unable to parse Raspberry Pi processor type code."
run_giveup
;;
esac
case $TTTTTTTT in
"0")
PI_TYPE="1A"
;;
"1")
PI_TYPE="1B"
;;
"2")
PI_TYPE="1A+"
;;
"3")
PI_TYPE="1B+"
;;
"4")
PI_TYPE="2B"
;;
"5")
PI_TYPE="Alpha (early prototype)"
;;
"6")
PI_TYPE="CM1"
;;
"8")
PI_TYPE="3B"
;;
"9")
PI_TYPE="Zero"
;;
"A")
PI_TYPE="CM3"
;;
"C")
PI_TYPE="Zero W"
;;
"D")
PI_TYPE="3B+"
;;
"E")
PI_TYPE="3A+"
;;
"F")
PI_TYPE="Internal use only"
;;
"10")
PI_TYPE="CM3+"
;;
"11")
PI_TYPE="4B"
;;
"12")
PI_TYPE="Zero 2 W"
;;
"13")
PI_TYPE="400"
;;
"14")
PI_TYPE="CM4"
;;
*)
PI_TYPE="UNKNOWN"
echo "ERROR: Unable to parse Raspberry Pi model code."
run_giveup
;;
esac
PI_REVISION="1.${RRRR}"
echo -e "\nRaspberry Pi Model ${PI_TYPE} Rev ${PI_REVISION} ${PI_PROCESSOR} with ${PI_RAM} of RAM. Manufactured by ${PI_MANUFACTURER}."
echo "(Overvoltage ${PI_OVERVOLTAGE}. OTP programming ${PI_OTPPROGRAM}. OTP reading ${PI_OTPREAD}. Warranty ${PI_WARRANTY})"
else
echo "ERROR: Could not read the Raspberry Pi's revision code version bit."
run_giveup
fi
# Categorize the Pi into a series (based on the $PI_TYPE variable)
if [ "$PI_TYPE" = "4B" ] || [ "$PI_TYPE" = "400" ] || [ "$PI_TYPE" = "CM4" ]; then
PI_SERIES=Pi4
elif [ "$PI_TYPE" = "3A+" ] || [ "$PI_TYPE" = "3B+" ] || [ "$PI_TYPE" = "CM3+" ]; then
PI_SERIES=Pi3+
elif [ "$PI_TYPE" = "Zero 2 W" ]; then
PI_SERIES=PiZ2
elif [ "$PI_TYPE" = "3B" ] || [ "$PI_TYPE" = "CM3" ]; then
PI_SERIES=Pi3
elif [ "$PI_TYPE" = "Zero" ] || [ "$PI_TYPE" = "Zero W" ]; then
PI_SERIES=PiZ1
elif [ "$PI_TYPE" = "2B" ]; then
PI_SERIES=Pi2
elif [ "$PI_TYPE" = "1A+" ] || [ "$PI_TYPE" = "1B+" ]; then
PI_SERIES=Pi1+
elif [ "$PI_TYPE" = "1A" ] || [ "$PI_TYPE" = "1B" ] || [ "$PI_TYPE" = "CM1" ]; then
PI_SERIES=Pi1
elif [ "$PI_TYPE" = "Internal use only" ] || [ "$PI_TYPE" = "Alpha (early prototype)" ]; then
PI_SERIES=X
else
echo "Error: Could not identify Pi series.">&2
run_giveup
fi
echo -e "\nThis Pi is part of the ${PI_SERIES} series."
}
function run_detect_arch() # Finds what kind of processor we're running (aarch64, armv8l, armv7l, x86_64, x86, etc)
{
KARCH=$(uname -m) # don't use 'arch' since it is not supported by Termux
if [ "$KARCH" = "aarch64" ] || [ "$KARCH" = "aarch64-linux-gnu" ] || [ "$KARCH" = "arm64" ] || [ "$KARCH" = "aarch64_be" ]; then
ARCH=ARM64
echo -e "\nDetected an ARM processor running in 64-bit mode (detected ARM64)."
elif [ "$KARCH" = "armv8r" ] || [ "$KARCH" = "armv8l" ] || [ "$KARCH" = "armv7l" ] || [ "$KARCH" = "armhf" ] || [ "$KARCH" = "armel" ] || [ "$KARCH" = "armv8l-linux-gnu" ] || [ "$KARCH" = "armv7l-linux-gnueabi" ] || [ "$KARCH" = "armv7l-linux-gnueabihf" ] || [ "$KARCH" = "armv7a-linux-gnueabi" ] || [ "$KARCH" = "armv7a-linux-gnueabihf" ] || [ "$KARCH" = "armv7-linux-androideabi" ] || [ "$KARCH" = "arm-linux-gnueabi" ] || [ "$KARCH" = "arm-linux-gnueabihf" ] || [ "$KARCH" = "arm-none-eabi" ] || [ "$KARCH" = "arm-none-eabihf" ]; then
ARCH=ARM32
echo -e "\nDetected an ARM processor running in 32-bit mode (detected ARM32)."
elif [ "$KARCH" = "x86_64" ]; then
ARCH=x64
echo -e "\nDetected an x86_64 processor running in 64-bit mode (detected x64)."
elif [ "$KARCH" = "x86" ] || [ "$KARCH" = "i386" ] || [ "$KARCH" = "i686" ]; then
ARCH=x86
echo -e "\nDetected an x86 (or x86_64) processor running in 32-bit mode (detected x86)."
else
echo "Error: Could not identify processor architecture.">&2
run_giveup
fi
# References:
# https://unix.stackexchange.com/questions/136407/is-my-linux-arm-32-or-64-bit
# https://bgamari.github.io/posts/2019-06-12-arm-terminology.html
# https://superuser.com/questions/208301/linux-command-to-return-number-of-bits-32-or-64/208306#208306
# https://stackoverflow.com/questions/45125516/possible-values-for-uname-m
# Testing:
# RPi4B 64-bit OS: aarch64 (if I remember correctly)
# RPi4B & RPi3B+ 32-bit: armv7l
# Termux 64-bit with 64-bit proot: aarch64 (if I remember correctly)
# Termux 64-bit with 32-bit proot: armv8l
# Exagear RPi3/4 (32bit modified qemu chroot): i686 (if I remember correctly)
}
function run_gather_os_info()
{
# To my knowledge . . .
# Most post-2012 distros should have a standard '/etc/os-release' file for finding OS
# Pre-2012 distros (& small distros) may not have a canonical way of finding OS.
#
# Each release file has its own 'standard' vars, but five highly-conserved vars in all(?) os-release files are ...
# NAME="Alpine Linux"
# ID=alpine
# VERSION_ID=3.8.1
# PRETTY_NAME="Alpine Linux v3.8"
# HOME_URL="http://alpinelinux.org"
#
# Other known os-release file vars are listed here: https://docs.google.com/spreadsheets/d/1ixz0PfeWJ-n8eshMQN0BVoFAFnUmfI5HIMyBA0uK43o/edit#gid=0
#
# In general, we need to know: $ID (distro) & $VERSION_ID (distro version) into order to add Wine repo's for certain distro's/versions.
# If $VERSION_CODENAME is available then we should probably use this for figuring out which repo to use
#
# We will also have to determine package manager later, which we might try to do multiple ways (whitelist based on distro/version vs runtime detection)
# Try to find the os-release file on Linux systems
if [ -e /etc/os-release ]; then OS_INFOFILE='/etc/os-release' #&& echo "Found an OS info file located at ${OS_INFOFILE}"
elif [ -e /usr/lib/os-release ]; then OS_INFOFILE='/usr/lib/os-release' #&& echo "Found an OS info file located at ${OS_INFOFILE}"
elif [ -e /etc/*elease ]; then OS_INFOFILE='/etc/*elease' #&& echo "Found an OS info file located at ${OS_INFOFILE}"
# Add mac OS https://apple.stackexchange.com/questions/255546/how-to-find-file-release-in-os-x-el-capitan-10-11-6
# Add chrome OS
# Add chroot Android? (uname -o can be used to find "Android")
else OS_INFOFILE='' && echo "No Linux OS info files could be found!">&2 && run_giveup;
fi
# Load OS-Release File vars into memory (reads vars like "NAME", "ID", "VERSION_ID", "PRETTY_NAME", and "HOME_URL")
source "${OS_INFOFILE}"
# Print out some variables from the $OS_INFOFILE we found
echo -e "\nRunning ${ID} ${VERSION_ID} ${VERSION_CODENAME} - ${HOME_URL}"
}
function run_giveup()
{
echo "Something went wrong. Please report errors to the github."
exit
}
run_gather_os_info
run_detect_arch
run_rpifinder "$@"