From 987d6c6e5e931f349a3f48b890a2ab9ee0c430b4 Mon Sep 17 00:00:00 2001
From: Aleksa Vučković <aleksav013@gmail.com>
Date: Wed, 29 Jun 2022 17:23:50 +0200
Subject: disabled cursor

---
 src/c/cursor.c | 27 +++++++++++++++++++++++++++
 src/c/kernel.c |  2 ++
 2 files changed, 29 insertions(+)
 create mode 100644 src/c/cursor.c

(limited to 'src/c')

diff --git a/src/c/cursor.c b/src/c/cursor.c
new file mode 100644
index 0000000..328b424
--- /dev/null
+++ b/src/c/cursor.c
@@ -0,0 +1,27 @@
+#include<source/cursor.h>
+#include<asm.h>
+
+void enable_cursor(uint32_t cursor_start, uint32_t cursor_end)
+{
+	ioport_out(0x3D4, 0x0A);
+	ioport_out(0x3D5, (ioport_in(0x3D5) & 0xC0) | cursor_start);
+
+	ioport_out(0x3D4, 0x0B);
+	ioport_out(0x3D5, (ioport_in(0x3D5) & 0xE0) | cursor_end);
+}
+
+void disable_cursor()
+{
+	ioport_out(0x3D4, 0x0A);
+	ioport_out(0x3D5, 0x20);
+}
+
+uint16_t get_cursor_position(void)
+{
+    uint16_t pos = 0;
+    ioport_out(0x3D4, 0x0F);
+    pos |= (uint16_t)ioport_in(0x3D5);
+    ioport_out(0x3D4, 0x0E);
+    pos |= (uint16_t)(ioport_in(0x3D5) << 8);
+    return pos;
+}
diff --git a/src/c/kernel.c b/src/c/kernel.c
index 9692b32..5851f49 100644
--- a/src/c/kernel.c
+++ b/src/c/kernel.c
@@ -6,6 +6,7 @@
 #include<source/heap.h>
 #include<source/vga.h>
 #include<source/tty.h>
+#include<source/cursor.h>
 
 void kernel_main(void)
 {
@@ -18,6 +19,7 @@ void kernel_main(void)
 
     terminal_initialize();
     prompt();
+    disable_cursor();
 
     while(1) __asm__("hlt\n\t");
 }
-- 
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