Detect and configure WLAN Pi Go at startup

debian/changelog

@@ -1,3 +1,9 @@
+wlanpi-common (1.1.23) unstable; urgency=medium
+
+  * Detect and configure WLAN Pi Go at startup
+
+  -- Jiri Brejcha <[email protected]>  Thu, 29 Aug 2024 23:02:00 +0100
+
 wlanpi-common (1.1.22-1) unstable; urgency=medium
 
   * wlanpi-model command executed on M4+ now shows USB mode (host/OTG)

etc/update-motd.d/00-wlanpi-motd

@@ -15,6 +15,8 @@ elif [[ "$MODEL" == "Mcuzone M4+" ]]; then
     WLAN_PI_MODEL="WLAN Pi M4+"
 elif [[ "$MODEL" == "Mcuzone M4" ]]; then
     WLAN_PI_MODEL="WLAN Pi M4"
+elif [[ "$MODEL" == "Oscium Go" ]]; then
+    WLAN_PI_MODEL="WLAN Pi Go"
 else
     WLAN_PI_MODEL="Unsupported hardware platform"
 fi
@@ -114,4 +116,4 @@ fi
 if [ -n "$SOFTWARE_UPDATES" ]; then
     echo " Software updates are available " | toilet -f term --filter border:metal
     echo -e "$SOFTWARE_UPDATES"
-fi
+fi

opt/wlanpi-common/wlanpi-config-at-startup.sh

@@ -44,6 +44,9 @@ debugger() {
     fi
 }
 
+# Set baud rate for WLAN Pi Go discover port
+stty -F /dev/ttyAMA0 115200 2>/dev/null
+
 # Get WLAN Pi model
 MODEL=$(wlanpi-model | grep "Main board:" | cut -d ":" -f2 | xargs)
 debugger "Detected WLAN Pi model: $MODEL"
@@ -224,8 +227,8 @@ if [[ "$MODEL" == "Mcuzone M4+" ]]; then
         # Create temporary file to collect ping results
         RESULT_FILE=$(mktemp)
 
-        # Wait for usb0 interface to become available and for far end RNDIS device to obtain IP address
-        sleep 2
+        # Wait for usb0 interface to become available, Mac user to accept security dialog, and for far end RNDIS device to obtain IP address
+        sleep 5
 
         # Ping the specified IP addresses in parallel
         for i in $(seq $START $END); do
@@ -309,7 +312,7 @@ if [[ "$MODEL" == "Mcuzone M4+" ]]; then
         debugger "Detected 1 line in lsusb output"
         # Ping remote device via OTG usb0 link to see if OTG is operational
         ping_otg
-                
+
         if [ -n "$OTG_PING_SUCCESS" ]; then
             debugger "Operating correctly in USB OTG mode, do nothing"
         elif grep -q -E "^\s*otg_mode=1" /boot/config.txt ; then
@@ -345,6 +348,61 @@ if [[ "$MODEL" == "Mcuzone M4+" ]]; then
     fi
 fi
 
+
+########## Go ##########
+
+# Apply Go platform specific settings
+if [[ "$MODEL" == "Oscium Go" ]]; then
+    echo "Applying WLAN Pi Go settings"
+    debugger "Disabling FPMS service"
+    systemctl disable wlanpi-fpms.service
+
+    # Disable RTC
+    if grep -q -E "^\s*dtoverlay=i2c-rtc,pcf85063a,addr=0x51" /boot/config.txt; then
+        debugger "RTC is enabled, disabling it now"
+        sed -i "s/^\s*dtoverlay=i2c-rtc,pcf85063a,addr=0x51/#dtoverlay=i2c-rtc,pcf85063a,addr=0x51/" /boot/config.txt
+        REQUIRES_REBOOT=1
+    else
+        debugger "RTC is already disabled, no action needed"
+    fi
+
+    # Disable battery gauge
+    if grep -q -E "^\s*dtoverlay=battery_gauge" /boot/config.txt; then
+        debugger "Battery gauge is enabled, disabling it now"
+        sed -i "s/^\s*dtoverlay=battery_gauge/#dtoverlay=battery_gauge/" /boot/config.txt
+        REQUIRES_REBOOT=1
+    else
+        debugger "Battery gauge is already disabled, no action needed"
+    fi
+
+    # Set USB mode to OTG mode
+    CM4_LINE_NUMBER=$(grep -n "\[cm4\]" /boot/config.txt | cut -d ":" -f1)
+    LINES_BELOW_CM4=$(sed -n '/\[cm4\]/,/\[*\]/p' /boot/config.txt | grep -n "dtoverlay=dwc2,dr_mode=host" | cut -d ":" -f1)
+    if [[ $CM4_LINE_NUMBER -gt 0 ]] && [[ $LINES_BELOW_CM4 -gt 0 ]]; then
+        DR_MODE_LINE_NUMBER=$(($CM4_LINE_NUMBER + $LINES_BELOW_CM4 - 1))
+        debugger "Found \"dtoverlay=dwc2,dr_mode=host\" CM4 config on line $DR_MODE_LINE_NUMBER"
+        debugger "Setting CM4 USB to otg mode"
+        sed -i "${DR_MODE_LINE_NUMBER}s/.*/dtoverlay=dwc2,dr_mode=otg/" /boot/config.txt
+        REQUIRES_REBOOT=1
+    elif ! sed -n '/\[cm4\]/,/\[*\]/p' /boot/config.txt | grep -q "^\s*dtoverlay=dwc2,dr_mode=otg"; then
+        debugger "USB mode setting not found in config file, creating a new line in CM4 section"
+        sed -i "s/\[cm4\]/&\ndtoverlay=dwc2,dr_mode=otg\n/" /boot/config.txt
+        REQUIRES_REBOOT=1
+    else
+        debugger "USB mode is already set to OTG mode, no action needed"
+    fi
+
+    # Comment otg_mode=1 line out to enable OTG
+    if grep -q -E "^\s*otg_mode=1" /boot/config.txt ; then
+        debugger "Found otg_mode=1 in config file"
+        debugger "Commenting otg_mode=1 out"
+        sed -i "s/^\s*otg_mode=1/#otg_mode=1/" /boot/config.txt
+        REQUIRES_REBOOT=1       
+    fi
+
+fi
+
+
 ########## Pro ##########
 
 # Apply WLAN Pi Pro platform specific settings
@@ -395,4 +453,4 @@ fi
 if [ "$REQUIRES_REBOOT" -gt 0 ]; then
     echo "Reboot required, rebooting now"
     reboot
-fi
+fi

opt/wlanpi-common/wlanpi-model.sh

@@ -97,6 +97,18 @@ elif grep -q "Raspberry Pi Compute Module 4" /proc/cpuinfo; then
 
     # It is powered by CM4 but it isn't Pro
 
+
+    # Is it Go?
+    elif timeout 2 grep -q -m 1 -E "^14," /dev/ttyAMA0 2>/dev/null; then
+        debugger "Detected Go"
+        if [ "$BRIEF_OUTPUT" -ne 0 ]; then
+            echo "Go"
+        else
+            echo "Model:                WLAN Pi Go"
+            echo "Main board:           Oscium Go"
+        fi
+        debugger "End script now. Platform is Go."
+
     # Is it M4+?
     elif i2cdetect -y 1 2>/dev/null | grep -q "50: 50"; then
             debugger "Detected M4+ Mcuzone EEPROM"