initial

1 files changed, 30 insertions, 0 deletions

diff --git a/kernel/src/tty/cursor.c b/kernel/src/tty/cursor.c
new file mode 100644
index 0000000..3a3888b
--- /dev/null
+++ b/kernel/src/tty/cursor.c
@@ -0,0 +1,30 @@
+#include <sys.h>
+
+#include "cursor.h"
+#include "term.h"
+
+void cursor_enable(void) {
+    cursor_setsize(13, 16);
+}
+
+void cursor_disable(void) {
+    outb(0x3D4, 0x0A);
+	outb(0x3D5, 0x20);
+}
+
+void cursor_setsize(uint8_t start, uint8_t end) {
+    outb(0x3D4, 0x0A);
+    outb(0x3D5, (inb(0x3D5) & 0xC0) | start);
+ 
+    outb(0x3D4, 0x0B);
+    outb(0x3D5, (inb(0x3D5) & 0xE0) | end);
+}
+
+void cursor_setpos(uint8_t x, uint8_t y) {
+;	uint16_t pos = y * TERM_W + x;
+ 
+	outb(0x3D4, 0x0F);
+	outb(0x3D5, (uint8_t) (pos & 0xFF));
+	outb(0x3D4, 0x0E);
+	outb(0x3D5, (uint8_t) ((pos >> 8) & 0xFF));
+}