--- /dev/null
+#include <lwk/driver.h>
+#include <lwk/console.h>
+#include <lwk/string.h>
+
+/** Base address of the VGA frame buffer. */
+static volatile uint8_t * const vga_fb = (uint8_t *) 0xffffffff800b8000ul;
+
+/** Current cursor row coordinate. */
+static int row = 0;
+
+/** Current cursor column coordinate. */
+static int col = 0;
+
+/** Number of rows on the screen. */
+static int nrows = 25;
+
+/** Number of columns on the screen. */
+static int ncols = 80;
+
+/** Set when vga console has been initialized. */
+static int initialized = 0;
+
+/** Calculates the offset in the vga_fb corresponding to (row, col). */
+static inline int cursor(int row, int col)
+{
+ return (row * ncols * 2) + col * 2;
+}
+
+/**
+ * Scrolls everything on the screen up by one row.
+ */
+static void vga_scroll(void)
+{
+ int i;
+
+ // Move all existing lines up by one
+ memmove(
+ (void *) vga_fb,
+ (void *) (vga_fb + cursor(1, 0)),
+ (nrows - 1) * ncols * sizeof(uint16_t)
+ );
+
+ // Blank the new line at the bottom of the screen
+ for (i = 0; i < ncols; i++)
+ vga_fb[cursor(nrows-1, i)] = ' ';
+}
+
+/**
+ * Moves cursor to the next line.
+ */
+static void vga_newline(void)
+{
+ row = row + 1;
+ col = 0;
+
+ if (row == nrows) {
+ row = nrows - 1;
+ vga_scroll();
+ }
+}
+
+/**
+ * Sets the VGA font color.
+ */
+static void vga_set_font_color(uint8_t color)
+{
+ int i, j;
+ for (i = 0; i < nrows; i++)
+ for (j = 0; j < ncols; j++)
+ vga_fb[cursor(i, j) + 1] = color;
+}
+
+/**
+ * Prints a single character to the screen.
+ */
+static void vga_putc(unsigned char c)
+{
+ // Print the character
+ vga_fb[cursor(row, col)] = c;
+
+ // Move cursor
+ if (++col == ncols)
+ vga_newline();
+}
+
+/**
+ * Writes a string to the screen at the current cursor location.
+ */
+static void vga_write(struct console *con, const char *str)
+{
+ unsigned char c;
+
+ while ((c = *str++) != '\0') {
+ switch (c) {
+ case '\n':
+ vga_newline();
+ break;
+
+ case '\t':
+ /* Emulate a TAB */
+ vga_putc(' ');
+ while ((col % 8) != 0)
+ vga_putc(' ');
+ break;
+
+ default:
+ vga_putc(c);
+ }
+ }
+}
+
+/**
+ * VGA console device.
+ */
+static struct console vga_console = {
+ .name = "VGA Console",
+ .write = vga_write
+};
+
+/**
+ * Initializes and registers the VGA console driver.
+ */
+void vga_console_init(void)
+{
+ if (initialized) {
+ printk(KERN_ERR "VGA console already initialized.\n");
+ return;
+ }
+
+ vga_set_font_color(0x0F /* White */);
+ console_register(&vga_console);
+ initialized = 1;
+}
+
+driver_init(vga_console_init);
+
+/**
+ * Sets the row on the screen to start printing at.
+ * This is used to avoid overwriting BIOS/boot messages.
+ * At least on x86-64, this is set automatically as part
+ * of the bootstrap process.
+ */
+driver_param(row, int);
+
