From f44bd795d5edc2d98eca1aef77309717d7bf571b Mon Sep 17 00:00:00 2001
From: "DLABAL, Eduard" <eduard.dlabal@edcs.cz>
Date: Sun, 6 Apr 2025 17:56:32 +0200
Subject: [PATCH] Enhance UART handling and improve TUI input management

---
 .gitignore  |   2 ++
 output/main | Bin 22480 -> 22920 bytes
 src/main.c  |  15 +++++++--
 src/tui.c   |  90 +++++++++++++++++++++++++++++-----------------------
 4 files changed, 66 insertions(+), 41 deletions(-)

diff --git a/.gitignore b/.gitignore
index cd531cf..38f188a 100644
--- a/.gitignore
+++ b/.gitignore
@@ -51,4 +51,6 @@ modules.order
 Module.symvers
 Mkfile.old
 dkms.conf
+output/
+.vscode/
 
diff --git a/output/main b/output/main
index 8a6e9646fd9008ff4eb10548a26d1563d9c67426..0d57115e99cca4542984e868bc3bed421b8e8b1e 100755
GIT binary patch
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diff --git a/src/main.c b/src/main.c
index 116373f..93995ed 100644
--- a/src/main.c
+++ b/src/main.c
@@ -12,7 +12,15 @@
 
 void *uartListener(void *arg)
 {
-
+    char *uart_address = (char *)arg;
+    int uart = open(uart_address, O_RDWR | O_NOCTTY | O_NDELAY);
+    if (uart == -1)
+    {
+        perror("Failed to open UART");
+        return NULL;
+    }
+    
+    close(uart);
     return NULL;
 }
 
@@ -27,12 +35,15 @@ int main(int argc, char const *argv[])
     getmaxyx(stdscr, y_max, x_max);
     if (x_max <= MIN_X_TERMINAL_SIZE || y_max <= MIN_Y_TERMINAL_SIZE)
     {
+        endwin();
+        clear();
         puts("Terminal is too small. Exiting...\n");
         return EXIT_FAILURE;
     }
 
     noecho();
     noraw();
+    cbreak();
     start_color();
     curs_set(0);
 
@@ -42,7 +53,7 @@ int main(int argc, char const *argv[])
 
     uartDialog(uart_address, x_max, y_max);
 
-    pthread_create(&uart_thread, NULL, uartListener, NULL);
+    pthread_create(&uart_thread, NULL, uartListener, uart_address);
 
     //
 
diff --git a/src/tui.c b/src/tui.c
index ee257ba..cd5bf2b 100644
--- a/src/tui.c
+++ b/src/tui.c
@@ -29,64 +29,76 @@ void uartDialog(char *uart_adress, int terminal_x, int terminal_y)
     wattroff(uartwin, COLOR_PAIR(1));
     wrefresh(uartwin);
 
-    // menu...
-    int choice;
+    char choice;
     int highlight = 0;
 
-    keypad(uartwin, TRUE);
+    int text_x = (win_width - 52) / 2;
+    int button_x = (win_width - 7) / 2;
+
+    keypad(uartwin, true);
     while (1)
     {
-        int text_x = (win_width - 52) / 2;
+        // Input array
         if (highlight == 0)
-        {
             wattron(uartwin, COLOR_PAIR(2));
-            mvwprintw(uartwin, 5, text_x, "[__________________________________________________]");
-            wattroff(uartwin, COLOR_PAIR(2));
-        }
+        else
+            wattron(uartwin, COLOR_PAIR(1));
+
         mvwprintw(uartwin, 5, text_x, "[%50s]", input);
+        if (!strcmp(input, "\0"))
+            mvwprintw(uartwin, 5, text_x, "[__________________________________________________]");
 
-        int button_x = (win_width - 7) / 2;
-        if (highlight == 1)
-        {
-            wattron(uartwin, COLOR_PAIR(2));
-            mvwprintw(uartwin, 7, button_x, "<Enter>");
+        if (highlight == 0)
             wattroff(uartwin, COLOR_PAIR(2));
-        }
-        mvwprintw(uartwin, 7, button_x, "<Enter>");
+        else
+            wattroff(uartwin, COLOR_PAIR(1));
 
+        // Enter button
+        if (highlight == 1)
+            wattron(uartwin, COLOR_PAIR(2));
+        else
+            wattron(uartwin, COLOR_PAIR(1));
+        mvwprintw(uartwin, 7, button_x - 2, "  %s  ", "<Enter>");
+        if (highlight == 1)
+            wattroff(uartwin, COLOR_PAIR(2));
+        else
+            wattroff(uartwin, COLOR_PAIR(1));
         wrefresh(uartwin);
 
+        flushinp();
         choice = wgetch(uartwin);
+
         if (choice == '\t')
         {
-            highlight=!highlight;
+            highlight = !highlight;
         }
 
-        if (highlight == 0)
+        else if (choice == '\n')
         {
-            wattron(uartwin, COLOR_PAIR(2));
-            mvwprintw(uartwin, 5, (win_width - 52) / 2, "[__________________________________________________]");
-            echo();
-            wmove(uartwin, 5, ((win_width - 52) / 2) + 1);
-            curs_set(1);
-            flushinp();
-            wgetnstr(uartwin, input, 50);
-            curs_set(0);
-            wattroff(uartwin, COLOR_PAIR(2));
-            noecho();
-        }
-        else if (highlight == 1)
-        {
-            if (choice == '\n')
+            if (highlight == 0)
             {
-                wclear(uartwin);
-                wrefresh(uartwin);
-                touchwin(stdscr);
-                refresh();
-                delwin(uartwin);
-                refresh();
-                strcpy(uart_adress, input);
-                break;
+                mvwprintw(uartwin, 5, (win_width - 52) / 2, "[__________________________________________________]");
+                echo();
+                wmove(uartwin, 5, ((win_width - 52) / 2) + 1);
+                curs_set(1);
+                flushinp();
+                wgetnstr(uartwin, input, 50);
+                curs_set(0);
+                noecho();
+            }
+            else if (highlight == 1)
+            {
+                if (choice == '\n')
+                {
+                    wclear(uartwin);
+                    wrefresh(uartwin);
+                    touchwin(stdscr);
+                    refresh();
+                    delwin(uartwin);
+                    refresh();
+                    strcpy(uart_adress, input);
+                    break;
+                }
             }
         }
     }