working on exposing vga to userspace

kernel/lib/print.c

@@ -1,4 +1,5 @@
 #include "print.h"
+#include "drivers/serial/serial.h"
 #include "stream.h"
 #include "tasks.h"
 
@@ -13,16 +14,21 @@ extern psf_font_t* kfont;
 
 static char* hex_chars = "0123456789abcdef";
 
+static void kwrite(char c) {
+    write_serial(c);   
+    console_putchar(c);
+}
+
 static void kprint(const char *str) {
     while (*str) {
-        console_putchar(*str);
+        kwrite(*str);
         str++;
     }
 }
 
 static void kputd(int d) {
     if (d == 0) {
-        console_putchar('0');
+        kwrite('0');
         return;
     }
     char buffer[12];
@@ -32,13 +38,13 @@ static void kputd(int d) {
         d /= 10;
     }
     for (int j = i - 1; j >= 0; j--) {
-        console_putchar(buffer[j]);
+        kwrite(buffer[j]);
     }
 }
 
 static void kputx(unsigned int x) {
     if (x == 0) {
-        console_putchar('0');
+        kwrite('0');
         return;
     }
     char buffer[8];
@@ -49,13 +55,13 @@ static void kputx(unsigned int x) {
         x >>= 4;
     }
     for (int j = i - 1; j >= 0; j--) {
-        console_putchar(buffer[j]);
+        kwrite(buffer[j]);
     }
 }
 
 void kputc(const char c) {
     spin_lock(&kwrite_lock);
-    console_putchar(c);
+    kwrite(c);
     spin_unlock(&kwrite_lock);
 }
 
@@ -85,20 +91,20 @@ void kprintf(const char* fmt, ...) {
                 }
                 case 'c': {
                     int c = va_arg(args, int);
-                    console_putchar((char)c);
+                    kwrite((char)c);
                     break;
                 }
                 case '%':
-                    console_putchar('%');
+                    kwrite('%');
                     break;
                 default:
-                    console_putchar('%');
-                    console_putchar(*fmt);
+                    kwrite('%');
+                    kwrite(*fmt);
                     break;
             }
             fmt++;
         } else {
-            console_putchar(*fmt);
+            kwrite(*fmt);
             fmt++;
         }
     }