#!/bin/bash

rmmod -w nvidia &>/dev/null

# Trying bbswitch method
if [ -f /proc/acpi/bbswitch ]; then
	echo 'OFF' > /proc/acpi/bbswitch \
	&& a=`cat /proc/acpi/bbswitch` \
	&& [ OFF == ${a##* } ] \
	&& echo "nVidia chip powered off using bbswitch" \
	&& exit 0

	echo "Cann't power off nVidia chip using bbswitch"
	exit -1
fi

# Trying acpi_call method
if [ -f /proc/acpi/call ]; then
	model=`dmidecode $@ -s system-product-name`
	case "$model" in
		M11XR2)
	                echo '\_SB.PCI0.P0P2.PEGP.NVOP 0 0x100 0x1A {255,255,255,255}' > /proc/acpi/call \
			&& echo '\_SB.PCI0.P0P2.PEGP._PS3' > /proc/acpi/call
		;;
		1015PN)
			echo '\OSGS 0x03' > /proc/acpi/call
		;;
		1215N)
			echo '\_SB.PCI0.P0P4.GFX0._DSM {0xF8,0xD8,0x86,0xA4,0xDA,0x0B,0x1B,0x47,0xA7,0x2B,0x60,0x42,0xA6,0xB5,0xBE,0xE0} 0x100 0x1A {0x1,0x0,0x0,0x3}' > /proc/acpi/call \
			&& echo '\_SB.PCI0.P0P4.GFX0._PS3' > /proc/acpi/call
		;;
		K42Jc|K52Jc|N53Jf|N53Jg|N71Jv|N73Jf|P52Jc|PL80Jt|U30Jc|U33Jc|U35Jc|U36Jc|UL80Jt)
			echo '\_SB.PCI0.PEG1.GFX0.DOFF' > /proc/acpi/call
		;;
		N61Jv|N73Sv)
			echo '\_SB.PCI0.PEGR.GFX0.DOFF' > /proc/acpi/call
		;;
		P31Jg)
			echo '\_SB.PCI0.PEG1.GFX0._PS3' > /proc/acpi/call
		;;
		U43Jc)
			echo '\_SB.PCI0.RP00.VGA._DSM {0xF8,0xD8,0x86,0xA4,0xDA,0x0B,0x1B,0x47,0xA7,0x2B,0x60,0x42,0xA6,0xB5,0xBE,0xE0} 0x100 0x1A {0x1,0x0,0x0,0x3}' > /proc/acpi/call \
			&& echo '\_SB.PCI0.RP00.VGA._PS3' > /proc/acpi/call
		;;
		UL30Vt)
			echo '\_SB.PCI0.P0P1.VGA._OFF' > /proc/acpi/call
		;;
		E6420)
			echo '\_SB.PCI0.PEG0.VID._OFF' > /proc/acpi/call
		;;
		InspironN5110|XPSL702X)
			echo '\_SB.PCI0.PEG0.PEGP._DSM {0xF8,0xD8,0x86,0xA4,0xDA,0x0B,0x1B,0x47,0xA7,0x2B,0x60,0x42,0xA6,0xB5,0xBE,0xE0} 0x100 0x1A {0x1,0x0,0x0,0x3}' > /proc/acpi/call \
			&& echo '\_SB.PCI0.PEG0.PEGP._PS3' > /proc/acpi/call
		;;
		Vostro3300|Vostro3500)
			echo '\_SB.PCI0.P0P1.PEGP._OFF' > /proc/acpi/call
		;;
		XPS15)
			echo '\_SB.PCI0.PEG0.PEGP._OFF' > /proc/acpi/call
		;;
		ThinkPadT410)
			echo '\_SB.PCI0.PEG.VID._PS3' > /proc/acpi/call \
			&& echo '\_SB.PCI0.PEG.VID._OFF' > /proc/acpi/call
		;;
		ThinkPadT420)
			echo '\_SB.PCI0.PEG.VID._DSM {0xF8,0xD8,0x86,0xA4,0xDA,0x0B,0x1B,0x47,0xA7,0x2B,0x60,0x42,0xA6,0xB5,0xBE,0xE0} 0x100 0x1A {0x1,0x0,0x0,0x3}' > /proc/acpi/call \
			&& echo '\_SB.PCI0.PEG.VID._PS3' > /proc/acpi/call
		;;
		*) echo "Snail: unknown Notebook model: $model"; exit -1
		;;
	esac

	echo "acpi_call used to power OFF nVidia chip"
	exit 0
fi

# Trying vgaswitcheroo method
if [ -f /sys/kernel/debug/vgaswitcheroo/switch ]; then
	echo 'OFF' > /sys/kernel/debug/vgaswitcheroo/switch \
	&& echo "nVidia chip powered off using vgaswitcheroo" \
	&& exit 0

	echo "Cann't power off nVidia chip using vgaswitcheroo"
	exit -1
fi