Refactoring debug terminal

src/kernel/include/terminal.h

@@ -0,0 +1,28 @@
+#pragma once
+#include <multiboot.h>
+#include <framebuffer.h>
+
+#define VGA_COLS 80
+#define VGA_ROWS 24
+#define VGA_SIZE (VGA_COLS*VGA_ROWS)
+#define VGA_MEMORY P2V(0xB8000)
+
+struct vga_cell {
+    uint8_t c;
+    uint8_t f;
+}__attribute__((packed));
+
+
+// drivers/terminal/terminal.c
+void terminal_init();
+void terminal_write(char c);
+
+// drivers/terminal/vga.c
+void vga_init();
+void vga_movecursor(unsigned int cursor);
+void vga_flush(struct vga_cell *buffer);
+
+// drivers/terminal/fbterm.c
+void fbterm_init(gfx_context *ctx);
+void fbterm_movecursor(unsigned int cursor);
+void fbterm_flush(struct vga_cell *buffer);