#!/bin/bash

TRIES=8

lsmod | grep '^nouveau ' >/dev/null && modprobe -rf nouveau &>/dev/null

# Trying bbswitch method
if [ -f /proc/acpi/bbswitch ]; then
	let tries=$TRIES
	while [ 0 -lt $tries ]; do
		echo 'ON' > /proc/acpi/bbswitch \
		&& modprobe nvidia \
		&& exit 0

		sleep 0.1
		let tries--
		echo "tries left: $tries"
	done

	echo "Cann't power on nVidia chip"
	exit -1
fi

# Trying acpi_call method
if [ -f /proc/acpi/call ]; then
	model=`dmidecode $@ -s system-product-name`
	tries=$TRIES
	while [ 0 -lt $tries ]; do
		case "$model" in
			M11XR2)
				echo '\_SB.PCI0.P0P2.PEGP._PS0' > /proc/acpi/call \
				&& modprobe nvidia \
				&& exit 0
			;;
			1015PN)
				echo '\_SB.PCI0.P0P4.DGPU.DON' > /proc/acpi/call \
				&& modprobe nvidia \
				&& exit 0
			;;
			1215N)
				echo '\_SB.PCI0.P0P4.GFX0._PS0' > /proc/acpi/call \
				&& modprobe nvidia \
				&& exit 0
			;;
			K42Jc|K52Jc|N53Jf|N53Jg|N71Jv|N73Jf|P52Jc|PL80Jt|U30Jc|U33Jc|U35Jc|U36Jc|UL80Jt)
				echo '\_SB.PCI0.PEG1.GFX0.DON' > /proc/acpi/call \
				&& modprobe nvidia \
				&& exit 0
			;;
			N53Sn|U41Sv|N53Sv)
				echo '\_SB.PCI0.PEG0.GFX0.DON' > /proc/acpi/call \
				&& modprobe nvidia \
				&& exit 0
			;;
			N61Jv|N73Sv)
				echo '\_SB.PCI0.PEGR.GFX0.DON' > /proc/acpi/call \
				&& modprobe nvidia \
				&& exit 0
			;;
			P31Jg)
				echo '\_SB.PCI0.PEG1.GFX0._PS0' > /proc/acpi/call \
				&& modprobe nvidia \
				&& exit 0
			;;
			U43Jc)
				echo '\_SB.PCI0.RP00.VGA._PS0' > /proc/acpi/call \
				&& modprobe nvidia \
				&& exit 0
			;;
			UL30Vt)
				echo '\_SB.PCI0.P0P1.VGA._ON' > /proc/acpi/call \
				&& modprobe nvidia \
				&& exit 0
			;;
			E6420)
				echo '\_SB.PCI0.PEG0.VID._ON' > /proc/acpi/call \
				&& modprobe nvidia \
				&& exit 0
			;;
			InspironN5110|XPSL702X)
				echo '\_SB.PCI0.PEG0.PEGP._PS0' > /proc/acpi/call \
				&& modprobe nvidia \
				&& exit 0
			;;
			Vostro3300|Vostro3500)
				echo '\_SB.PCI0.P0P1.PEGP._ON' > /proc/acpi/call \
				&& modprobe nvidia \
				&& exit 0
			;;
			XPS15)
				echo '\_SB.PCI0.PEG0.PEGP._ON' > /proc/acpi/call \
				&& modprobe nvidia \
				&& exit 0
			;;
			ThinkPadT410)
				echo '\_SB.PCI0.PEG.VID._ON' > /proc/acpi/call \
				&& echo '\_SB.PCI0.PEG.VID._PS0' > /proc/acpi/call \
				&& modprobe nvidia \
				&& exit 0
			;;
			ThinkPadT420)
				echo '\_SB.PCI0.PEG.VID._PS0' > /proc/acpi/call \
				&& modprobe nvidia \
				&& exit 0
			;;
			*) echo "Snail: unknown Notebook model: $model"; exit -1
			;;
		esac

		sleep 0.1
		let tries--
		echo "tries left: $tries"
	done

	echo "Cann't power on nVidia chip"
	exit -1
fi

# Trying vgaswitcheroo method
if [ -f /sys/kernel/debug/vgaswitcheroo/switch ]; then
	let tries=$TRIES
	while [ 0 -lt $tries ]; do
		echo 'ON' > /sys/kernel/debug/vgaswitcheroo/switch \
		&& modprobe nvidia \
		&& exit 0

		sleep 0.1
		let tries--
		echo "tries left: $tries"
	done

	echo "Cann't power on nVidia chip"
	exit -1
fi