Started work on cpm disk emulation, read only for now

Inc/control.h

@@ -2,17 +2,43 @@
 #define CONTROL_H
 
 #include "stm32f4xx_hal.h"
+#include "fatfs.h"
+#include <sys/types.h>
+
+enum Type {
+	TYPE_NONE,
+	TYPE_FILE,
+	TYPE_DIR
+};
 
 typedef struct {
-	uint8_t dirty;
-	uint8_t action;
+	// Block and size are in blocks of 128
+	uint32_t start;
+	uint32_t size;
+	char* filename;
+	char name[8];
+	char ext[3];
+} DiskEntry;
+
+typedef struct {
+	uint8_t entry_count;
+	uint8_t current;
+	DiskEntry entries[127];
+	uint32_t end;
+} Disk;
+
+typedef struct {
+	FATFS *fs;
+	FIL *file;
+	uint8_t command;
 	uint8_t ready;
-	uint8_t lba_1;
-	uint8_t lba_2;
-	uint8_t lba_3;
-	uint32_t lba;
 	uint32_t counter;
+	uint32_t lba;
+	uint32_t offset;
 	uint8_t* buffer;
+	unsigned int size;
+	enum Type type;
+	Disk A;
 } Storage;
 
 typedef struct {