Added code to set bluetooth pin

src/Makefile

@@ -45,6 +45,9 @@ SYMBOLS += DEFAULT_ALLOW_RAW_WRITE_NETWORK=$(DEFAULT_ALLOW_RAW_WRITE_NETWORK)
 DEFAULT_ALLOW_RAW_WRITE_BLE ?= 0
 SYMBOLS += DEFAULT_ALLOW_RAW_WRITE_BLE=$(DEFAULT_ALLOW_RAW_WRITE_BLE)
 
+DEFAULT_BLUETOOTH_PIN ?= "\"1234\""
+SYMBOLS += DEFAULT_BLUETOOTH_PIN=$(DEFAULT_BLUETOOTH_PIN)
+
 DEFAULT_METRICS_STATUS ?= 0
 SYMBOLS += DEFAULT_METRICS_STATUS=$(DEFAULT_METRICS_STATUS)
 

src/bluetooth.cpp

@@ -5,6 +5,7 @@
 #include "atcommander.h"
 #include "util/timer.h"
 #include "gpio.h"
+#include "config.h"
 #include <string.h>
 
 #define BLUETOOTH_DEVICE_NAME "OpenXC-VI"
@@ -21,6 +22,7 @@ using openxc::gpio::GPIO_DIRECTION_OUTPUT;
 using openxc::gpio::GPIO_DIRECTION_INPUT;
 using openxc::gpio::GPIO_VALUE_HIGH;
 using openxc::gpio::GPIO_VALUE_LOW;
+using openxc::config::getConfiguration;
 using openxc::util::time::delayMs;
 using openxc::util::log::debug;
 
@@ -80,6 +82,18 @@ void openxc::bluetooth::configureExternalModule(UartDevice* device) {
             debug("Unable to disable remote Bluetooth configuration");
         }
 
+        AtCommand pinCommand = {
+            request_format: "SP,%s\r",
+            expected_response: "AOK",
+            error_response: "ERR"
+        };
+
+        if(at_commander_set(&config, &pinCommand, getConfiguration()->bluetoothPin)) {
+            debug("Changed Bluetooth Pairing Pin to %s.", getConfiguration()->bluetoothPin);
+        } else {
+            debug("Unable to change Bluetooth Pairing Pin.");
+        }
+
         AtCommand inquiryCommand = {
             request_format: "SI,%s\r",
             expected_response: "AOK",

src/config.cpp

@@ -132,6 +132,7 @@ openxc::config::Configuration* openxc::config::getConfiguration() {
         desiredRunLevel: RunLevel::CAN_ONLY,
         initialized: false,
         runLevel: RunLevel::NOT_RUNNING,
+	bluetoothPin: DEFAULT_BLUETOOTH_PIN,
         uart: {
             descriptor: {
                 allowRawWrites: DEFAULT_ALLOW_RAW_WRITE_UART

src/config.h

@@ -123,6 +123,7 @@ typedef struct {
     RunLevel desiredRunLevel;
     bool initialized;
     RunLevel runLevel;
+    const char* bluetoothPin;
     openxc::interface::uart::UartDevice uart;
     openxc::interface::network::NetworkDevice network;
     openxc::interface::usb::UsbDevice usb;