Segregate lenovo/ subdir into thinkpad and ideapad directories

There are several significant differences between ThinkPads and the
other Lenovo models, so this structure must be more precise

lenovo/thinkpad/general.nix

@@ -0,0 +1,18 @@
+{ lib, ... }:
+
+with lib;
+
+{
+  hardware.trackpoint = mkDefault {
+    enable = true;
+    emulateWheel = true;
+  };
+
+  hardware.enableAllFirmware = true;
+  services.tlp.enable = true;
+
+  services.xserver = {
+    synaptics.enable = false;
+    libinput.enable = true;
+  };
+}

lenovo/thinkpad/t410.nix

@@ -0,0 +1,80 @@
+{ config, pkgs, ... }:
+
+{
+  imports = [ ./general.nix ];
+
+  boot = {
+    kernelParams = [
+      # Kernel GPU Savings Options (NOTE i915 chipset only)
+      "drm.debug=0" "drm.vblankoffdelay=1" "i915.semaphores=1" "i915.modeset=1"
+      "i915.use_mmio_flip=1" "i915.powersave=1" "i915.enable_ips=1"
+      "i915.disable_power_well=1" "i915.enable_hangcheck=1"
+      "i915.enable_cmd_parser=1" "i915.fastboot=0" "i915.enable_ppgtt=1"
+      "i915.reset=0" "i915.lvds_use_ssc=0" "i915.enable_psr=0" "vblank_mode=0"
+      "i915.i915_enable_rc6=1"
+    ];
+    blacklistedKernelModules = [
+      # Kernel GPU Savings Options (NOTE i915 chipset only)
+      "sierra_net" "cdc_mbim" "cdc_ncm" "btusb"
+    ];
+  };
+
+  hardware.cpu.intel.updateMicrocode = true;
+
+  systemd.services.tune-powermanagement = {
+    description = "Tune Powermanagement";
+    serviceConfig.Type = "oneshot";
+    serviceConfig.RemainAfterExit = true;
+    wantedBy = [ "multi-user.target" ];
+    unitConfig.RequiresMountsFor = "/sys";
+    script = ''
+      echo '1500' > '/proc/sys/vm/dirty_writeback_centisecs'
+      echo '1' > '/sys/module/snd_hda_intel/parameters/power_save'
+      echo 'auto' > '/sys/bus/i2c/devices/i2c-0/device/power/control'
+      echo 'auto' > '/sys/bus/i2c/devices/i2c-1/device/power/control'
+      echo 'auto' > '/sys/bus/i2c/devices/i2c-2/device/power/control'
+      echo 'auto' > '/sys/bus/i2c/devices/i2c-3/device/power/control'
+      echo 'auto' > '/sys/bus/i2c/devices/i2c-4/device/power/control'
+      echo 'auto' > '/sys/bus/i2c/devices/i2c-5/device/power/control'
+      echo 'auto' > '/sys/bus/i2c/devices/i2c-6/device/power/control'
+      echo 'auto' > '/sys/bus/i2c/devices/i2c-7/device/power/control'
+      echo 'auto' > '/sys/bus/i2c/devices/i2c-8/device/power/control'
+      echo 'auto' > '/sys/bus/pci/devices/0000:00:00.0/power/control'
+      echo 'auto' > '/sys/bus/pci/devices/0000:00:02.0/power/control'
+      echo 'auto' > '/sys/bus/pci/devices/0000:00:16.0/power/control'
+      echo 'auto' > '/sys/bus/pci/devices/0000:00:16.3/power/control'
+      echo 'auto' > '/sys/bus/pci/devices/0000:00:19.0/power/control'
+      echo 'auto' > '/sys/bus/pci/devices/0000:00:1a.0/power/control'
+      echo 'auto' > '/sys/bus/pci/devices/0000:00:1b.0/power/control'
+      echo 'auto' > '/sys/bus/pci/devices/0000:00:1c.0/power/control'
+      echo 'auto' > '/sys/bus/pci/devices/0000:00:1c.1/power/control'
+      echo 'auto' > '/sys/bus/pci/devices/0000:00:1c.3/power/control'
+      echo 'auto' > '/sys/bus/pci/devices/0000:00:1c.4/power/control'
+      echo 'auto' > '/sys/bus/pci/devices/0000:00:1d.0/power/control'
+      echo 'auto' > '/sys/bus/pci/devices/0000:00:1e.0/power/control'
+      echo 'auto' > '/sys/bus/pci/devices/0000:00:1f.0/power/control'
+      echo 'auto' > '/sys/bus/pci/devices/0000:00:1f.2/power/control'
+      echo 'auto' > '/sys/bus/pci/devices/0000:00:1f.3/power/control'
+      echo 'auto' > '/sys/bus/pci/devices/0000:00:1f.6/power/control'
+      echo 'auto' > '/sys/bus/pci/devices/0000:03:00.0/power/control'
+      echo 'auto' > '/sys/bus/pci/devices/0000:0d:00.0/power/control'
+      echo 'auto' > '/sys/bus/pci/devices/0000:0d:00.1/power/control'
+      echo 'auto' > '/sys/bus/pci/devices/0000:ff:00.0/power/control'
+      echo 'auto' > '/sys/bus/pci/devices/0000:ff:00.1/power/control'
+      echo 'auto' > '/sys/bus/pci/devices/0000:ff:02.0/power/control'
+      echo 'auto' > '/sys/bus/pci/devices/0000:ff:02.1/power/control'
+      echo 'auto' > '/sys/bus/pci/devices/0000:ff:02.2/power/control'
+      echo 'auto' > '/sys/bus/pci/devices/0000:ff:02.3/power/control'
+      echo 'auto' > '/sys/bus/usb/devices/1-1.3/power/control'
+      echo 'min_power' > '/sys/class/scsi_host/host0/link_power_management_policy'
+      echo 'min_power' > '/sys/class/scsi_host/host1/link_power_management_policy'
+      echo 'min_power' > '/sys/class/scsi_host/host2/link_power_management_policy'
+      echo 'min_power' > '/sys/class/scsi_host/host3/link_power_management_policy'
+      echo 'min_power' > '/sys/class/scsi_host/host4/link_power_management_policy'
+      echo 'min_power' > '/sys/class/scsi_host/host5/link_power_management_policy'
+      /run/current-system/sw/bin/rmmod e1000e || true
+    '';
+    # ${pkgs.ethtool}/bin/ethtool -s enp0s25 wol d || true
+  };
+
+}

lenovo/thinkpad/t440p.nix

@@ -0,0 +1,12 @@
+{ config, pkgs, ... }:
+
+{
+  imports = [ ./general.nix ];
+
+  boot = {
+    extraModprobeConfig = ''
+      options bbswitch use_acpi_to_detect_card_state=1
+    '';
+    kernelModules = [ "kvm-intel" "tpm-rng" ];
+  };
+}

lenovo/thinkpad/t460s.nix

@@ -0,0 +1,40 @@
+{ config, pkgs, ... }:
+
+{
+  imports =
+    [ ../lib/kernel-version.nix
+      ./general.nix
+    ];
+
+  ## BEGIN from generated hardware-configuration
+  ## Probably better to just use a freshly generated hardware.configuration.nix
+  ## than this, but including for reference.
+  # boot.initrd.availableKernelModules = [ "xhci_pci" "nvme" "usb_storage" "sd_mod" "rtsx_pci_sdmmc" ];
+  # boot.kernelModules = [ "kvm-intel" ];
+  # boot.extraModulePackages = [  ];
+  #
+  #
+  # nix.maxJobs = lib.mkDefault 4;
+  ## END from generated hardware-configuration
+
+  # Use the gummiboot efi boot loader. (From default generated configuration.nix)
+  boot.loader.systemd-boot.enable = true;
+  boot.loader.efi.canTouchEfiVariables = true;
+
+  # https://wiki.archlinux.org/index.php/Lenovo_ThinkPad_T460s
+  kernelAtleast = [
+    { version = "4.5.1"; msg = "The physical mouse buttons works incorrectly."; }
+    { version = "4.6";   msg = "Suspending the T460s by closing the lid when running on battery causes the machine to freeze up entirely."; }
+  ];
+
+  # For the screen. I don't know what to do with this information, but
+  # the hiDPI support is far from perfect (as of July 2016):
+
+  # Resolution: 2560 x 1440 px
+  # Size: 12.2" × 6.86" (30.99cm × 17.43cm)
+  # DPI: 209.8
+  # Dot Pitch: 0.1211mm
+  # Aspect Ratio: 16 × 9 (1.78:1)
+  # Pixel Count: 3,686,400
+  # Megapixels: 3.69MP
+}

lenovo/thinkpad/x140e.nix

@@ -0,0 +1,22 @@
+{ config, lib, pkgs, ... }:
+
+{
+  imports = [ ./general.nix ];
+
+  boot = {
+    # wireless
+    kernelModules = [ "kvm-amd" "wl" ];
+    extraModulePackages = [ config.boot.kernelPackages.broadcom_sta ];
+
+    # audio device
+    extraModprobeConfig = ''
+      options snd_hda_intel enable=0,1
+    '';
+  };
+
+  # video card
+  services.xserver.videoDrivers = ["ati"];
+
+  # media keys
+  sound.enableMediaKeys = true;
+}

lenovo/thinkpad/x220i-tablet.nix

@@ -0,0 +1,25 @@
+{ config, pkgs, ... }:
+
+{
+  imports = [ ./general.nix ];
+
+  # TPM chip countains a RNG
+  security.rngd.enable = true;
+
+  boot = {
+    kernelModules = [ "tp_smapi" ];
+    extraModulePackages = [ config.boot.kernelPackages.tp_smapi ];
+  };
+
+  # hard disk protection if the laptop falls
+  services.hdapsd.enable = true;
+
+  # enable volume control buttons
+  sound.enableMediaKeys = true;
+
+  # fingerprint reader: login and unlock with fingerprint (if you add one with `fprintd-enroll`)
+  #services.fprintd.enable = true;
+  #security.pam.services.login.fprintAuth = true;
+  #security.pam.services.xscreensaver.fprintAuth = true;
+  # similarly for other PAM providers
+}

lenovo/thinkpad/x250.nix

@@ -0,0 +1,8 @@
+{ config, pkgs, ... }:
+
+{
+  imports = [ ./general.nix ];
+
+   # modesetting driver leads to freezes with newer kernel at the moment (> 4.4)
+   services.xserver.videoDrivers = [ "intel" ];
+}