Initial commit

meta-quanta/meta-gsj/recipes-gsj/gsj-hotswap-change-setting/files/gsj-hotswap-change-setting.service

@@ -0,0 +1,12 @@
+[Unit]
+Description=Hotswap Controller Setting Changing
+Before=xyz.openbmc_project.Hwmon@.service
+
+[Service]
+ExecStart=/usr/bin/gsj-hotswap-change-setting.sh
+Restart=no
+Type=oneshot
+RemainAfterExit=true
+
+[Install]
+WantedBy=multi-user.target

meta-quanta/meta-gsj/recipes-gsj/gsj-hotswap-change-setting/files/gsj-hotswap-change-setting.sh

@@ -0,0 +1,67 @@
+#!/bin/bash
+
+# Purpose:
+#     The purpose of the script is to change the CB/CL ratio setting of the hotswap controller from 1.9x to 3.9x
+
+I2C_BUS=11
+CHIP_ADDR=0x15
+GPIO_ID=91   #Revision ID
+GPIO_BasePath=/sys/class/gpio
+
+function set_hotswap_reg()
+{
+    #set reg "0xd9" bit 3 to 1
+    i2cset -f -y $I2C_BUS $CHIP_ADDR 0xd9 0x08
+}
+
+function get_hotswap_value()
+{
+    #get the value of reg "0xd9", return value should be "0x08"
+    i2cget -f -y $I2C_BUS $CHIP_ADDR 0xd9
+}
+
+function export_gpio()
+{
+    if [ -d "$GPIO_BasePath/gpio$GPIO_ID" ]; then
+        echo "gpio$GPIO_ID folder exist, skip export."
+    else
+        echo "Export gpio$GPIO_ID..."
+        echo $GPIO_ID > $GPIO_BasePath/export
+    fi
+}
+
+function get_gpio_value()
+{
+    cat $GPIO_BasePath/gpio$GPIO_ID/value
+}
+
+function setting_hotswap()
+{
+    echo "setting hotswap controller..."
+    set_hotswap_reg
+
+    for i in {0..3};
+    do
+        if [ "$i" == "3" ];then
+            echo "change hotswap controller setting failed after retry 3 times."
+        else
+            hotswap_value=$(get_hotswap_value)
+            echo "get hotswap controller return value : $hotswap_value"
+            if [ "$hotswap_value" == "0x08" ];then
+                echo "change hotswap controller setting success."
+                break;
+            else
+                echo "hotswap controller setting failed, retry $i times..."
+            fi
+        fi
+    done
+}
+
+export_gpio
+gpio_value=$(get_gpio_value)
+if [ "$gpio_value" == "1" ];then
+    echo "gpio$GPIO_ID value is: $gpio_value, setting hotswap."
+    setting_hotswap
+else
+    echo "gpio$GPIO_ID value is: $gpio_value, no need to set hotswap."
+fi