From 58d12d96d2032e8bd268435b8418104a3c178a1e Mon Sep 17 00:00:00 2001
From: Jan Kaluza <hanzz.k@gmail.com>
Date: Thu, 26 Apr 2012 08:30:56 +0200
Subject: [PATCH] plugin_adio

---
 tuned/plugins/plugin_audio.py | 91 +++++++++++++++++++++++++++++++++++
 1 file changed, 91 insertions(+)
 create mode 100644 tuned/plugins/plugin_audio.py

diff --git a/tuned/plugins/plugin_audio.py b/tuned/plugins/plugin_audio.py
new file mode 100644
index 0000000..de40416
--- /dev/null
+++ b/tuned/plugins/plugin_audio.py
@@ -0,0 +1,91 @@
+import tuned.plugins
+import tuned.logs
+import tuned.monitors
+from tuned.utils.commands import *
+import os
+import struct
+import glob
+
+log = tuned.logs.get()
+
+STORAGE_CATEGORY = "audio"
+
+class VideoPlugin(tuned.plugins.Plugin):
+	"""
+	"""
+
+	def __init__(self, devices, options):
+		"""
+		"""
+		super(self.__class__, self).__init__(None, options)
+
+		self._commands_run = False
+
+		if not tuned.utils.storage.Storage.get_instance().data.has_key(STORAGE_CATEGORY):
+			tuned.utils.storage.Storage.get_instance().data[STORAGE_CATEGORY] = {}
+
+		self.register_command("enable_ac97_powersave",
+								self._set_enable_ac97_powersave,
+								self._revert_enable_ac97_powersave)
+		self.register_command("hda_intel_powersave",
+								self._set_hda_intel_powersave,
+								self._revert_hda_intel_powersave)
+
+	@classmethod
+	def _get_default_options(cls):
+		return {
+			"enable_ac97_powersave" : "",
+			"hda_intel_powersave" : "",
+		}
+
+	def cleanup(self):
+		self.cleanup_commands()
+
+	def update_tuning(self):
+		if not self._commands_run:
+			self.execute_commands()
+			self._commands_run = True
+
+	@command(STORAGE_CATEGORY, "enable_ac97_powersave")
+	def _set_enable_ac97_powersave(self, value):
+		if value == "1" or value == "true":
+			value = "Y"
+		elif value == "0" or value == "false":
+			value = "N"
+		else:
+			log.warn("Incorrect enable_ac97_powersave value.")
+			return ""
+
+		sys_file = "/sys/module/snd_ac97_codec/parameters/power_save"
+		if not os.path.exists(sys_file):
+			return ""
+
+		old_value = tuned.utils.commands.read_file(sys_file)
+		tuned.utils.commands.write_to_file(sys_file, value)
+		return old_value
+
+	@command_revert(STORAGE_CATEGORY, "enable_ac97_powersave")
+	def _revert_enable_ac97_powersave(self, value):
+		sys_file = "/sys/module/snd_ac97_codec/parameters/power_save"
+		if not os.path.exists(sys_file):
+			return
+
+		tuned.utils.commands.write_to_file(sys_file, value)
+
+	@command(STORAGE_CATEGORY, "hda_intel_powersave")
+	def _set_hda_intel_powersave(self, value):
+		sys_file = "/sys/module/snd_hda_intel/parameters/power_save"
+		if not os.path.exists(sys_file):
+			return ""
+
+		old_value = tuned.utils.commands.read_file(sys_file)
+		tuned.utils.commands.write_to_file(sys_file, value)
+		return old_value
+
+	@command_revert(STORAGE_CATEGORY, "hda_intel_powersave")
+	def _revert_hda_intel_powersave(self, value):
+		sys_file = "/sys/module/snd_hda_intel/parameters/power_save"
+		if not os.path.exists(sys_file):
+			return
+
+		tuned.utils.commands.write_to_file(sys_file, value)