#!/bin/sh

# The chip info can be found via sensors-detect in lm_sensors
# Driver `to-be-written':
#  * ISA bus, address 0xa40
#    Chip `ITE IT8686E Super IO Sensors' (confidence: 9)

# Driver `it87':
#  * ISA bus, address 0xa60
#    Chip `ITE IT8792E Super IO Sensors' (confidence: 9)

# Driver `k10temp' (autoloaded):
#  * Chip `AMD Family 17h thermal sensors' (confidence: 9)

# Not sure what the difference between the 0xa40 and 0xa60 chips are
# besides the 0xa40 seeming to have the right values and 60 doesn't

# from https://fossies.org/linux/lm-sensors/configs/Gigabyte/X470-AORUS-ULTRA-GAMING.conf
cat <<EOF >> /etc/sensors.d/gigabyte-x470.conf
chip "it8628-isa-0a40"
    label temp1 "System 1"
    label temp2 "Chipset"
    label temp3 "CPU Socket"
    label temp4 "PCIEX16"
    label temp5 "VRM MOS"
    label temp6 "VSOC MOS"
    label in0 "CPU Vcore"
    label in1 "+3.3V"
    label in2 "+12V"
    label in3 "+5V"
    label in4 "CPU Vcore SOC"
    label in5 "CPU Vddp"
    label in6 "DRAM A/B"
#   label in7 "3VSB"
#   label in8 "Battery"
    label fan1 "CPU_FAN"
    label fan2 "SYS_FAN1"
    label fan3 "SYS_FAN2"
    label fan4 "SYS_FAN3"
    label fan5 "CPU_OPT"

#   compute temp3 @+0.5,@+0.5
    compute in1 @*1.65,@*1.65
    compute in2 @*6,@*6
    compute in3 @*2.5,@*2.5

    set in0_min 0.35
    set in0_max 1.45
    set in1_min 3.3 * 0.97
    set in1_max 3.3 * 1.03
    set in2_min 12 * 0.97
    set in2_max 12 * 1.03
    set in3_min 5 * 0.97
    set in3_max 5 * 1.03
    set in4_min 0.9
    set in4_max 1.26
    set in5_min 0.9 * 0.95
    set in5_max 0.9 * 1.05
    set in6_min 1.1
    set in6_max 1.6
EOF

# I haven't paid much attention but this is apparently marginally unsafe
# as it allows multiple programs to simultaneously access the same registers/hardware
if ! grep -q acpi_enforce_resources=lax /etc/default/grub; then
  grubby --args=acpi_enforce_resources=lax --update-kernel ALL
fi

# 8628 comes from advice for x570 version
# https://forum.level1techs.com/t/configuring-lm-sensors-on-x570-aorus-master-to-get-cpu-temps-fans-etc/166170/5
echo it87 > /etc/modules-load.d/it87.conf
echo "options it87 force_id=0x8628" > /etc/modprobe.d/it87.conf