From 0608d646c56a68308d3df1c0a1d19d541938d590 Mon Sep 17 00:00:00 2001
From: Zhongheng Liu <z.liu@outlook.com.gr>
Date: Thu, 26 Sep 2024 16:51:22 +0300
Subject: [PATCH] feat: add extra power-saving profile

---
 nixos/services/misc.service.nix             |  6 +++---
 nixos/services/power_management.service.nix | 22 +++++++++++++++++++++
 2 files changed, 25 insertions(+), 3 deletions(-)
 create mode 100644 nixos/services/power_management.service.nix

diff --git a/nixos/services/misc.service.nix b/nixos/services/misc.service.nix
index 6a10eb0..72fcd2c 100644
--- a/nixos/services/misc.service.nix
+++ b/nixos/services/misc.service.nix
@@ -1,7 +1,7 @@
 {...}: {
-  #specialisation.powersave.configuration = {
-  #  services.auto-cpufreq.enable = true;
-  #};
+  specialisation.powersave.configuration = {
+    services.auto-cpufreq.enable = true;
+  };
   services = {
     upower.enable = true;
     udisks2.enable = true;
diff --git a/nixos/services/power_management.service.nix b/nixos/services/power_management.service.nix
new file mode 100644
index 0000000..06d638b
--- /dev/null
+++ b/nixos/services/power_management.service.nix
@@ -0,0 +1,22 @@
+{
+  pkgs,
+  config,
+  lib,
+  ...
+}: {
+  services.tlp = {
+    enable = true;
+    settings = {
+      CPU_SCALING_GOVERNOR_ON_AC = "performance";
+      CPU_SCALING_GOVERNOR_ON_BAT = "powersave";
+
+      CPU_ENERGY_PERF_POLICY_ON_BAT = "power";
+      CPU_ENERGY_PERF_POLICY_ON_AC = "performance";
+
+      CPU_MIN_PERF_ON_AC = 0;
+      CPU_MAX_PERF_ON_AC = 100;
+      CPU_MIN_PERF_ON_BAT = 0;
+      CPU_MAX_PERF_ON_BAT = 20;
+    };
+  };
+}