release 1.0

6 files changed, 81 insertions, 0 deletions

diff --git a/.SRCINFO b/.SRCINFO
new file mode 100644
index 000000000000..cf6c0b560a61
--- /dev/null
+++ b/.SRCINFO
@@ -0,0 +1,19 @@
+pkgbase = intelpwm
+	pkgdesc = PWM frequency setting on Intel HD Graphics with modprobe.d
+	pkgver = 1.0
+	pkgrel = 1
+	url = http://devbraindom.blogspot.com/2013/03/eliminate-led-screen-flicker-with-intel.html
+	install = intelpwm.install
+	arch = x86_64
+	license = GPL
+	depends = intel-gpu-tools
+	backup = etc/intelpwm.conf
+	source = i915-pwm.conf
+	source = intelpwm
+	source = intelpwm.conf
+	sha256sums = f25b883744dbe177d0ec7efaca17ffb288f4a7994e819883f299c90c27295f85
+	sha256sums = 51f14a522767ff4c803ac1149980715714966356e36ed1e92cf61110a35bf784
+	sha256sums = 7fefe55b66278e97eaca2fdf0aad125720cd00c95069dc38ef02ae1ee4e846b0
+
+pkgname = intelpwm
+
diff --git a/PKGBUILD b/PKGBUILD
new file mode 100644
index 000000000000..71be233eeb22
--- /dev/null
+++ b/PKGBUILD
@@ -0,0 +1,31 @@
+#Maintainer: Nikita Tarasov <nikatar@disroot.org>
+
+pkgname=intelpwm
+pkgver=1.0
+pkgrel=1
+pkgdesc="PWM frequency setting on Intel HD Graphics with modprobe.d"
+arch=(x86_64)
+depends=(intel-gpu-tools)
+url="http://devbraindom.blogspot.com/2013/03/eliminate-led-screen-flicker-with-intel.html"
+license=(GPL)
+conflicts=()
+install='intelpwm.install'
+backup=('etc/intelpwm.conf')
+source=(i915-pwm.conf intelpwm intelpwm.conf)
+
+sha256sums=('f25b883744dbe177d0ec7efaca17ffb288f4a7994e819883f299c90c27295f85'
+            '51f14a522767ff4c803ac1149980715714966356e36ed1e92cf61110a35bf784'
+            '7fefe55b66278e97eaca2fdf0aad125720cd00c95069dc38ef02ae1ee4e846b0')
+
+build() {
+	true
+}
+
+package() {
+	msg "Installing..."
+	install -D -m644 "${srcdir}/i915-pwm.conf" "${pkgdir}/etc/modprobe.d/i915-pwm.conf"
+	install -D -m644 "${srcdir}/intelpwm.conf" "${pkgdir}/etc/intelpwm.conf"
+	install -D -m744 "${srcdir}/intelpwm" "${pkgdir}/usr/bin/intelpwm"
+}
+
+
diff --git a/i915-pwm.conf b/i915-pwm.conf
new file mode 100644
index 000000000000..0c012b49b73b
--- /dev/null
+++ b/i915-pwm.conf
@@ -0,0 +1 @@
+install i915 /usr/bin/intelpwm; /sbin/modprobe i915 --ignore-install
diff --git a/intelpwm b/intelpwm
new file mode 100755
index 000000000000..35fc6ac16f63
--- /dev/null
+++ b/intelpwm
@@ -0,0 +1,16 @@
+#!/usr/bin/env bash
+CONFIG=/etc/intelpwm.conf
+if [ ! -f "$CONFIG" ]; then
+    echo "$CONFIG not found"
+    exit 1
+fi
+
+source $CONFIG
+
+RAW_DATA="$(intel_reg read ${REGISTER})"
+CYCLE="${RAW_DATA:56:4}"
+HEX=$(printf "0x%08x" $((1000000*0x7d/128/FREQ)))
+PERIOD="${HEX:6:9}"
+
+intel_reg write "${REGISTER}" "0x${PERIOD}${CYCLE}"
+
diff --git a/intelpwm.conf b/intelpwm.conf
new file mode 100644
index 000000000000..49ac300f45c3
--- /dev/null
+++ b/intelpwm.conf
@@ -0,0 +1,6 @@
+# FREQ is the PWM frequency in Hz. In most cases 1000Hz is the maximum. Be careful and see the documentation for your hardware! Tested on Thinkpad X230
+# For other details see http://devbraindom.blogspot.com/2013/03/eliminate-led-screen-flicker-with-intel.html
+
+REGISTER=0xc8254
+FREQ=860
+
diff --git a/intelpwm.install b/intelpwm.install
new file mode 100644
index 000000000000..1620ab8e3c0a
--- /dev/null
+++ b/intelpwm.install
@@ -0,0 +1,8 @@
+post_install() {
+	echo "PWM frequency settings on Intel HD Graphics with modprobe.d"
+	echo "Default PWM frequency is 860Hz. In most cases 1000Hz is the maximum. Be careful and see the documentation for your hardware! Tested on Thinkapd X230"
+    echo "Edit /etc/intelpwm.conf to suit your needs"
+    echo "Visit http://devbraindom.blogspot.com/2013/03/eliminate-led-screen-flicker-with-intel.html for more details"
+}
+
+