(uart, driveruipanels) add possibility to change uart baud rate in debug panel

driveruipanels.cpp

@@ -34,6 +34,10 @@ http://mozilla.org/MPL/2.0/.
 #define DRIVER_HINT_CONTENT
 #include "driverhints.h"
 
+#ifdef WITH_UART
+#include "uart.h"
+#endif
+
 void
 drivingaid_panel::update() {
 
@@ -548,7 +552,9 @@ debug_panel::update() {
 	m_powergridlines.clear();
 	m_cameralines.clear();
 	m_rendererlines.clear();
+#ifdef WITH_UART
     m_uartlines.clear();
+#endif
 
 	update_section_vehicle( m_vehiclelines );
 	update_section_engine( m_enginelines );
@@ -559,7 +565,9 @@ debug_panel::update() {
 	update_section_powergrid( m_powergridlines );
 	update_section_camera( m_cameralines );
 	update_section_renderer( m_rendererlines );
+#ifdef WITH_UART
     update_section_uart(m_uartlines);
+#endif
 }
 
 void
@@ -621,6 +629,7 @@ debug_panel::render() {
                     avlports[i] = (char *) Application.uart_status.available_ports[i].c_str();
                 }
                 ImGui::Combo("Port", &Application.uart_status.selected_port_index, avlports, ports_num);
+                ImGui::Combo("Baud", &Application.uart_status.selected_baud_index, uart_baudrates_list, uart_baudrates_list_num);
             }
             ImGui::Checkbox("Enabled", &Application.uart_status.enabled);
         }

uart.cpp

@@ -9,6 +9,29 @@
 #include "simulationtime.h"
 #include "application.h"
 
+
+const char* uart_baudrates_list[] = {
+    "300",
+    "1200",
+    "2400",
+    "4800",
+    "9600",
+    "19200",
+    "38400",
+    "57600",
+    "74880",
+    "115200",
+    "230400",
+    "250000",
+    "500000",
+    "1000000",
+    "2000000"
+};
+
+const size_t uart_baudrates_list_num = (
+        sizeof(uart_baudrates_list)/sizeof(uart_baudrates_list[0])
+    );
+
 void UartStatus::reset_stats() {
     packets_sent = 0;
     packets_received = 0;
@@ -23,6 +46,16 @@ uart_input::uart_input()
     status->port_name = conf.port;
     status->baud = conf.baud;
 
+    const std::string baudStr = std::to_string(status->baud);
+
+    for(int i=0;i<uart_baudrates_list_num;i++) {
+        if(baudStr == uart_baudrates_list[i]) {
+            status->selected_baud_index = i;
+            status->active_port_index = i;
+            break;
+        }
+    }
+
     old_packet.fill(0);
     last_update = std::chrono::high_resolution_clock::now();
     last_setup = std::chrono::high_resolution_clock::now();
@@ -232,6 +265,16 @@ void uart_input::poll()
     UartStatus *status = &Application.uart_status;
     auto now = std::chrono::high_resolution_clock::now();
 
+    /* handle baud change */
+    if(status->active_baud_index != status->selected_baud_index) {
+        status->baud = std::stoul(uart_baudrates_list[status->selected_baud_index]);
+        status->active_baud_index = status->selected_baud_index;
+        status->reset_stats();
+        status->is_connected = false;
+        setup_port();
+    }
+
+    /* handle port change */
     if(status->available_ports.size() > 0 && status->selected_port_index >= 0 && status->active_port_index != status->selected_port_index) {
         status->port_name = status->available_ports[status->selected_port_index];
         status->active_port_index = status->selected_port_index;

uart.h

@@ -3,12 +3,17 @@
 #include <libserialport.h>
 #include "command.h"
 
+extern const char* uart_baudrates_list[];
+extern const size_t uart_baudrates_list_num;
+
 class UartStatus {
     public:
         std::string port_name = "";
         std::vector<std::string> available_ports = {};
         int selected_port_index = -1;
+        int selected_baud_index = -1;
         int active_port_index = -1;
+        int active_baud_index = -1;
         int baud = 0;
         bool enabled = false;
         bool is_connected = false;