From b5eef5151b9292593bfce7fb5ae3d63e1a5671a6 Mon Sep 17 00:00:00 2001
From: George Hung <george.hung@quantatw.com>
Date: Wed, 10 Mar 2021 16:04:46 +0800
Subject: meta-quanta: gbs: failsafe fan speed control dynamically

1. add acpi-power-state daemon to check the ACPI power
   states from BIOS

2. set failsafe fan speed at different states
   - S0_G0_D0: 90%
   - S5_G2: 40%

   Note:
   this item depends on the commit and will
   add as the patches first in another PR
   https://gerrit.openbmc-project.xyz/38112

3. add gbs-check-host-state.sh to monitor the power state
   D-Bus and then trigger to set fan failsafe speed

4. remove gbs-detect-fan-fail service and unused scripts
   from phosphor-pid-control

5. update read-margin-temp srcrev to avoid nvme temperature
   sensor failed due to nvme SSD not-present

Signed-off-by: George Hung <george.hung@quantatw.com>
Change-Id: I496dd7bc59076a2b3690e367877d49533855c9fe
---
 .../acpi-power-state-daemon/gbs-set-failsafe.sh    | 53 ++++++++++++++++++++++
 1 file changed, 53 insertions(+)
 create mode 100644 meta-quanta/meta-gbs/recipes-google/acpi-power-state/acpi-power-state-daemon/gbs-set-failsafe.sh

(limited to 'meta-quanta/meta-gbs/recipes-google/acpi-power-state/acpi-power-state-daemon/gbs-set-failsafe.sh')

diff --git a/meta-quanta/meta-gbs/recipes-google/acpi-power-state/acpi-power-state-daemon/gbs-set-failsafe.sh b/meta-quanta/meta-gbs/recipes-google/acpi-power-state/acpi-power-state-daemon/gbs-set-failsafe.sh
new file mode 100644
index 000000000..bcd1d2cc2
--- /dev/null
+++ b/meta-quanta/meta-gbs/recipes-google/acpi-power-state/acpi-power-state-daemon/gbs-set-failsafe.sh
@@ -0,0 +1,53 @@
+#!/bin/bash
+# Copyright 2021 Google LLC
+# Copyright 2021 Quanta Computer Inc.
+#
+# Licensed under the Apache License, Version 2.0 (the "License");
+# you may not use this file except in compliance with the License.
+# You may obtain a copy of the License at
+#
+#      http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS,
+# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+# See the License for the specific language governing permissions and
+# limitations under the License.
+
+
+target_pwm="$1"
+
+if [ -z "$target_pwm" ]; then
+  echo "Target_pwm is not set" >&2
+  exit 1
+fi
+
+zone_num="$(busctl tree xyz.openbmc_project.State.FanCtrl | grep zone | wc -l)"
+result=0
+
+for (( i = 0; i < ${zone_num}; i++ )); do
+  retries=4
+  busctl_error=-1
+
+  while (( retries > 0 )) && (( busctl_error != 0 )); do
+    busctl set-property xyz.openbmc_project.State.FanCtrl /xyz/openbmc_project/settings/fanctrl/zone${i} xyz.openbmc_project.Control.FanSpeed Target t "${target_pwm}"
+    busctl_error=$?
+
+    if (( busctl_error != 0 )); then
+      #Retry setting failsafe. Swampd may be running but zone aren't yet built
+      #so sleep a second to let them be built
+      sleep 1
+    fi
+
+    let retries-=1
+  done
+
+  if (( busctl_error != 0 )); then
+    echo "Failure setting zone${i} fan failsafe to ${target_pwm}" >&2
+    result=$busctl_error
+  else
+    echo "Setting zone${i} fan failsafe to ${target_pwm}"
+  fi
+done
+
+exit $result
-- 
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