ubuntu-tp-smapi-install

#!/usr/bin/perl
use strict;
use warnings;

die "run as root, please\n" if not `whoami` eq "root\n";

#installs tp-smapi from source, compiles it, and patches it to sorta work on
# w520, w510, t520, etc.
# {it aborts loading the module unless its in the whitelist}

system "apt-get install tp-smapi-source";

system
  "echo 'options thinkpad_ec force_io=1' > " .
  "/etc/modprobe.d/tp_smapi.conf";
system "modprobe -a tp_smapi hdaps";

my $w520_patch = '
462a463
> 		TP_DMI_MATCH("LENOVO", "ThinkPad"),
';

open FH, "> /tmp/tp_smapi-w520.patch";
print FH $w520_patch;
close FH;

my $srcDir = '/usr/src/modules/tp-smapi';
if(not -e $srcDir){
  $srcDir = '/usr/src/tp-smapi-0.40';
}
print "\n\n";
my $ecFile = "$srcDir/thinkpad_ec.c";
if(-e "$ecFile"){
  system "patch $ecFile /tmp/tp_smapi-w520.patch";
}else{
  print "Could not find tp-smapi-source to patch the " .
    "whitelist for newer Thinkpads, e.g.: W520";
}
print "\n\n";

system "module-assistant prepare tp-smapi";
system "module-assistant auto-install tp-smapi -f -O";
system "modprobe tp-smapi";

open FH, '< /etc/modules';
my @lines = <FH>;
my @newlines;
for my $line(@lines){
  push @newlines, $line if $line !~ /^(tp-smapi|hdaps)\n?$/;
}
push @newlines, "tp-smapi\n";
push @newlines, "hdaps\n";
close FH;

open FH, '> /etc/modules';
print FH @newlines;
close FH;

system "chmod o+w /etc/modules";
system
  "echo 'KERNEL==\"event[0-9]*\", " .
  "ATTRS{phys}==\"hdaps/input1\"," .
  "ATTRS{modalias}==\"input:b0019v1014p5054e4801-*\",".
  "SYMLINK+=\"input/hdaps/accelerometer-event\"'".
  " | sudo tee /etc/udev/rules.d/51-hdaps.rules";
system "update-initramfs -u";