Added basic frequency sound generator

 Changes to be committed:
	new file:   src/graphics/graphics.h
	modified:   src/kernel.c
	new file:   src/sound/frequency.c
	new file:   src/sound/sound.h
	modified:   build.sh
 Changes not staged for commit:
	deleted:    src/graphics/vga.h
	modified:   src/input/ps2/keyboard.c
	modified:   src/input/ps2/mouse.c
	modified:   src/interrupts/irq.c
	modified:   src/interrupts/isr.c
	modified:   src/memory/memory.c

1 files changed, 19 insertions, 0 deletions

diff --git a/src/graphics/graphics.h b/src/graphics/graphics.h
new file mode 100644
index 0000000..7c449f1
--- /dev/null
+++ b/src/graphics/graphics.h
@@ -0,0 +1,19 @@
+#ifndef MELVIX_VGA_H
+#define MELVIX_VGA_H
+
+#include <stddef.h>
+#include <stdint.h>
+
+enum vga_color;
+
+void terminal_initialize(void);
+
+void terminal_set_color(uint8_t color);
+
+void terminal_clear();
+
+void terminal_write_string(const char *data);
+
+void terminal_put_char(char c);
+
+#endif
\ No newline at end of file