Allow setting/disabling Emergency Stop during setup/via Serial commands

.gitignore

@@ -3,4 +3,4 @@ obj/
 .idea
 .vs
 .vscode
-*.generated.sln
+*.sln

HubConfig.fbs

@@ -8,6 +8,13 @@ table RFConfig {
   keepalive_enabled:bool;
 }
 
+table EStopConfig {
+  enabled:bool;
+
+  /// The GPIO pin connected to the E-Stop button
+  gpio_pin:uint8;
+}
+
 table WiFiCredentials {
   /// ID of the WiFi network credentials, used for referencing the credentials with a low memory footprint
   id:uint8;
@@ -118,4 +125,7 @@ table HubConfig {
 
   /// OTA update configuration
   ota_update:OtaUpdateConfig;
+
+  /// E-Stop configuration
+  estop:EStopConfig;
 }

HubToLocalMessage.fbs

@@ -46,14 +46,24 @@ struct AccountLinkCommandResult {
   result:AccountLinkResultCode;
 }
 
-enum SetRfPinResultCode : uint8 {
+enum SetGPIOResultCode : uint8 {
   Success = 0,
   InvalidPin = 1,
   InternalError = 2
 }
 struct SetRfTxPinCommandResult {
   pin:uint8;
-  result:SetRfPinResultCode;
+  result:SetGPIOResultCode;
+}
+
+struct SetEstopEnabledCommandResult {
+  enabled:bool;
+  success:bool;
+}
+
+struct SetEstopPinCommandResult {
+  gpio_pin:uint8;
+  result:SetGPIOResultCode;
 }
 
 union HubToLocalMessagePayload {
@@ -72,7 +82,11 @@ union HubToLocalMessagePayload {
   AccountLinkCommandResult,
 
   // RF transmitter stuff
-  SetRfTxPinCommandResult
+  SetRfTxPinCommandResult,
+
+  // E-stop stuff
+  SetEstopEnabledCommandResult,
+  SetEstopPinCommandResult
 }
 
 table HubToLocalMessage (fs_serializer) {

LocalToHubMessage.fbs

@@ -58,6 +58,12 @@ struct AccountUnlinkCommand {
 struct SetRfTxPinCommand {
   pin:uint8;
 }
+struct SetEstopEnabledCommand {
+  enabled:bool;
+}
+struct SetEstopPinCommand {
+  pin:uint8;
+}
 
 union LocalToHubMessagePayload {
 
@@ -84,7 +90,11 @@ union LocalToHubMessagePayload {
   AccountUnlinkCommand,
 
   // RF Transmitter stuff
-  SetRfTxPinCommand
+  SetRfTxPinCommand,
+
+  // E-Stop stuff
+  SetEstopEnabledCommand,
+  SetEstopPinCommand
 }
 
 table LocalToHubMessage (fs_serializer) {