Moving components modules to a more proper directory

components/framebuffer/framebuffer.c

@@ -0,0 +1,48 @@
+// Driver implementation for Jank's text frame buffer
+
+// Buffer can display 80 columns by 25 Rows
+// Start of buffer is at (real)address 0x000B8000
+// Memory at this section is divided into 16-bit cells 
+    // | 15-8 | 7-4 | 0-3
+    // | Asci | FG  | BG
+#include "types.h"
+#include "framebuffer.h"
+
+// State trackers from header
+static u8* Frame_Buffer = (u8*)FRAME_BUFFER_ADDR;
+s32 Frame_Buffer_Cursor = 0x0000;
+
+void frame_buffer_newline() {
+	while(Frame_Buffer_Cursor != (AREA*8)) {
+		if((Frame_Buffer_Cursor % 160) == 0) {
+			break;
+			Frame_Buffer_Cursor+=160;
+		}
+		else {
+			Frame_Buffer_Cursor+=2;
+		}
+	}
+}
+// Writes character to a given cell in the framebuffer
+    // @cell parameter is the logical (linear)index into the buffer
+void write_cell_fb(u8 c, u8 fg, u8 bg) {
+    Frame_Buffer[Frame_Buffer_Cursor] = c;
+    Frame_Buffer[Frame_Buffer_Cursor+1] = (fg & 0x0f << 4) | (bg & 0x0f);
+	Frame_Buffer_Cursor += 2;
+}
+
+void clear_fb(void) {
+	for(unsigned cell=0;cell<AREA; cell+=2) {
+		write_cell_fb(' ', 0x00, 0x00);
+	}
+	Frame_Buffer_Cursor = 0x0000;
+}
+
+// Takes the linear indexed position to move the cursos, if there is nothing at that position we should still have something there
+void fb_move_cursor(u16 position) {
+	serialport_write_byte(FB_CMD, FB_HIGH_CMD);
+	serialport_write_byte(FB_DATA, ((position >> 8) & 0x00ff) );
+	serialport_write_byte(FB_CMD, FB_LOW_CMD);
+	serialport_write_byte(FB_DATA, position & 0x00ff);
+}
+

components/framebuffer/framebuffer.h

@@ -0,0 +1,52 @@
+#include "types.h"
+#include "serial.h"
+#include "ports.h"
+#ifndef FRAMEBUFFER_H
+#define FRAMEBUFFER_H
+
+#define COLUMNS 80
+#define ROWS 25
+#define AREA ( COLUMNS * ROWS )
+
+// frame buffer port commansd
+#define FB_CMD 0x3d4
+#define FB_DATA 0x3d5
+
+#define FB_HIGH_CMD 14
+#define FB_LOW_CMD 15
+
+// address of our frame buffer
+#define FRAME_BUFFER_ADDR 0x000B8000
+
+// Logical index of a cell in the frame buffer
+#define FRAME_CELL(cell_) (cell_ * 2)
+
+// Colors available in text framebuffer
+#define Black 0x01
+#define Blue 0x02
+#define Green 0x03
+#define Cyan 0x04
+#define Red 0x05
+#define Magenta 0x05
+#define Brown 0x06
+#define LightGrey 0x07
+#define DarkGrey 0x08
+#define LightBlue 0x09
+#define LightGreen 0x0a
+#define LightCyan 0x0b
+#define LightRed 0x0c
+#define LightMagenta 0x0d
+#define LightBrown 0x0e
+#define White 0x0f
+
+extern s32 Frame_Buffer_Cursor;
+
+void frame_buffer_newline();
+
+void write_cell_fb(u8, u8, u8);
+
+void clear_fb(void);
+
+void fb_move_cursor(u16);
+
+#endif