Inital Commit

root/DEBIAN/conffiles

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+/etc/argon-one.conf

root/DEBIAN/control

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+Package: argon-one
+Version: 1.0.0
+Architecture:
+Installed-Size:
+Depends: python3, python3-rpi-lgpio, python3-smbus, raspi-gpio
+Priority: optional
+Section: misc
+Homepage: http://www.privlab.it
+Maintainer: PrivLab <hostmaster@privlab.it>
+Description: Argon One Case Daemon

root/DEBIAN/postinst

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+#!/usr/bin/sh
+
+set -e
+set -u
+
+if [ -d '/run/systemd/system' ]; then
+  /usr/bin/systemctl --system daemon-reload > '/dev/null' 2>&1 || \
+    /usr/bin/true
+fi
+
+case "${1}" in
+  configure)
+    if [ -x '/usr/bin/deb-systemd-helper' ]; then
+      /usr/bin/deb-systemd-helper unmask 'argon-one.service' > '/dev/null' 2>&1 || \
+        /usr/bin/true
+    fi
+    if /usr/bin/deb-systemd-helper --quiet was-enabled 'argon-one.service'; then
+      /usr/bin/deb-systemd-helper enable 'argon-one.service' > '/dev/null' 2>&1 || \
+        /usr/bin/true
+    else
+      /usr/bin/deb-systemd-helper update-state 'argon-one.service' > '/dev/null' 2>&1 || \
+        /usr/bin/true
+    fi
+  ;;
+esac

root/DEBIAN/postrm

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+#!/bin/sh
+
+set -e
+set -u
+
+if [ -d '/run/systemd/system' ]; then
+  /usr/bin/systemctl --system daemon-reload > '/dev/null' 2>&1 || \
+    /usr/bin/true
+fi
+
+case "${1}" in
+  remove|purge)
+    if [ -x '/usr/bin/deb-systemd-helper' ]; then
+      /usr/bin/deb-systemd-helper purge 'argon-one.service' > '/dev/null' 2>&1 || \
+        /usr/bin/true
+      /usr/bin/deb-systemd-helper unmask 'argon-one.service' > '/dev/null' 2>&1 || \
+        /usr/bin/true
+    fi
+    BOOT=$(/usr/bin/grep '/boot' '/etc/fstab' | /usr/bin/mawk '$1 !~ /^#/ && $2 ~ /^[/]/ {print $2}')
+    /usr/bin/sed --in-place 's/dtparam=i2c_arm=on/dtparam=i2c_arm=off/' "${BOOT}/config.txt"
+    /usr/bin/sed --in-place 's/console=tty0/console=tty0 console=ttyS1,115200/' "${BOOT}/cmdline.txt"
+  ;;
+esac

root/DEBIAN/preinst

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+#!/usr/bin/sh
+
+set -e
+set -u
+
+case "${1}" in
+  install)
+    BOOT=$(/usr/bin/grep '/boot' '/etc/fstab' | /usr/bin/mawk '$1 !~ /^#/ && $2 ~ /^[/]/ {print $2}')
+    /usr/bin/sed --in-place 's/dtparam=i2c_arm=off/dtparam=i2c_arm=on/' "${BOOT}/config.txt"
+    /usr/bin/sed --in-place 's/ console=ttyS1,115200//' "${BOOT}/cmdline.txt"
+    /usr/bin/echo '##'
+    /usr/bin/echo '##'
+    /usr/bin/echo '## Restart the device to load the necessary drivers.'
+    /usr/bin/echo '##'
+    /usr/bin/echo '##'
+  ;;
+esac

root/DEBIAN/prerm

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+#!/usr/bin/sh
+
+set -e
+set -u
+
+case "${1}" in
+  remove)
+    if [ -x '/usr/bin/deb-systemd-invoke' ]; then
+      /usr/bin/deb-systemd-invoke stop 'argon-one.service' > '/dev/null' 2>&1 || \
+        /usr/bin/true
+      /usr/bin/deb-systemd-invoke disable 'argon-one.service' > '/dev/null' 2>&1 || \
+        /usr/bin/true
+    fi
+  ;;
+esac

root/etc/argon-one.conf

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+# Argon One Case Fan Configuration
+#
+# List below the temperature (Celsius) and fan speed (in percent) pairs
+# Use the following form:
+# min.temperature=speed
+#
+55=25
+60=50
+66=75
+70=100

root/lib/systemd/system-shutdown/argon-one_poweroff.py

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+#!/usr/bin/python3
+
+import sys
+import smbus
+import RPi.GPIO as GPIO
+
+rev = GPIO.RPI_REVISION
+if rev == 2 or rev == 3:
+  bus = smbus.SMBus(1)
+else:
+  bus = smbus.SMBus(0)
+if len(sys.argv) > 1:
+  bus.write_byte(0x1A, 0)
+  if sys.argv[1] == "poweroff" or sys.argv[1] == "halt":
+    try:
+      bus.write_byte(0x1A, 0xFF)
+    except:
+      rev = 0

root/lib/systemd/system/argon-one.service

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+[Unit]
+Description=Argon One Case Daemon
+After=multi-user.target
+
+[Service]
+Type=idle
+ExecStart=/usr/lib/argon-one/daemon
+ProtectSystem=full
+Restart=always
+RestartSec=15
+RestartPreventExitStatus=0
+TimeoutStopSec=10
+
+[Install]
+WantedBy=multi-user.target

root/usr/lib/argon-one/daemon

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+#!/usr/bin/python3
+
+import smbus
+import RPi.GPIO as GPIO
+import os
+import time
+from threading import Thread
+
+rev = GPIO.RPI_REVISION
+if rev == 2 or rev == 3:
+  bus = smbus.SMBus(1)
+else:
+  bus = smbus.SMBus(0)
+GPIO.setwarnings(False)
+GPIO.setmode(GPIO.BCM)
+shutdown_pin = 4
+GPIO.setup(shutdown_pin, GPIO.IN, pull_up_down=GPIO.PUD_DOWN)
+
+def shutdown_check():
+  while True:
+    pulsetime = 1
+    GPIO.wait_for_edge(shutdown_pin, GPIO.RISING)
+    time.sleep(0.01)
+    while GPIO.input(shutdown_pin) == GPIO.HIGH:
+      time.sleep(0.01)
+      pulsetime += 1
+    if pulsetime >= 2 and pulsetime <= 3:
+      os.system("reboot")
+    elif pulsetime >= 4 and pulsetime <= 5:
+      os.system("poweroff")
+
+def get_fanspeed(tempval, configlist):
+  for curconfig in configlist:
+    curpair = curconfig.split("=")
+    tempcfg = float(curpair[0])
+    fancfg = int(float(curpair[1]))
+    if tempval >= tempcfg:
+      if fancfg < 1:
+        return 0
+      elif fancfg < 25:
+        return 25
+      return fancfg
+  return 0
+
+def load_config(fname):
+  newconfig = []
+  try:
+    with open(fname, "r") as fp:
+      for curline in fp:
+        if not curline:
+          continue
+        tmpline = curline.strip()
+        if not tmpline:
+          continue
+        if tmpline[0] == "#":
+          continue
+        tmppair = tmpline.split("=")
+        if len(tmppair) != 2:
+          continue
+        tempval = 0
+        fanval = 0
+        try:
+          tempval = float(tmppair[0])
+          if tempval < 0 or tempval > 100:
+            continue
+        except:
+          continue
+        try:
+          fanval = int(float(tmppair[1]))
+          if fanval < 0 or fanval > 100:
+            continue
+        except:
+          continue
+        newconfig.append("{:5.1f}={}".format(tempval, fanval))
+    if len(newconfig) > 0:
+      newconfig.sort(reverse=True)
+  except:
+    return []
+  return newconfig
+
+def temp_check():
+  fanconfig = ["70=100", "65=75", "50=50", "55=25"]
+  tmpconfig = load_config("/etc/argon-one.conf")
+  if len(tmpconfig) > 0:
+      fanconfig = tmpconfig
+  address = 0x1A
+  prevblock = 0
+  while True:
+    try:
+      tempfp = open("/sys/class/thermal/thermal_zone0/temp", "r")
+      temp = tempfp.readline()
+      tempfp.close()
+      val = float(int(temp) / 1000)
+    except IOError:
+      val = 0
+    block = get_fanspeed(val, fanconfig)
+    if block < prevblock:
+      time.sleep(30)
+    prevblock = block
+    try:
+      if block > 0:
+        bus.write_byte(address, 100)
+        time.sleep(1)
+        bus.write_byte(address, block)
+    except IOError:
+      temp = ""
+    time.sleep(30)
+
+try:
+  t1 = Thread(target=shutdown_check)
+  t2 = Thread(target=temp_check)
+  t1.start()
+  t2.start()
+except:
+  t1.stop()
+  t2.stop()
+  GPIO.cleanup()