dpm.h

#pragma once
 
#include <common.h>
 
#define DPM_ERROR_NO_MOUNT (-1)     
#define DPM_ERROR_NOT_READY (-2)    
#define DPM_ERROR_NO_READ (-3)      
 
// disk, offset_h, offset_l, size, buffer
// typedef int (*dpm_disk_rw_cmd)(size_t,size_t,size_t,void*);
typedef size_t (*dpm_disk_rw_cmd)(size_t,uint64_t,uint64_t,size_t,void*);
 
typedef struct {
    bool Ready;             
    char Name[128];         
    char FileSystem[64];    
    int Status;             
    size_t Size;            
    size_t Sectors;         
    size_t SectorSize;      
    int AddrMode;           
    char Serial[16];        
    void* Point;            
    void* Reserved;         
    dpm_disk_rw_cmd Read;   
    dpm_disk_rw_cmd Write;  
} __attribute__((packed)) DPM_Disk;
 
// TODO: Save model, manufacturer, serial number, firmware version in that dpm structure.
enum dpm_disk_type {
    NONE,
    MEMORY,
    IDE_ATA,
    IDE_ATAPI,
    AHCI_SATA,
    AHCI_SATAPI
};
 
struct dpm_disk_info {
    enum dpm_disk_type type;
};
 
void* dpm_metadata_read(char Letter);
void dpm_metadata_write(char Letter, uint32_t Addr);
size_t dpm_read(char Letter, uint64_t high_offset, uint64_t low_offset, size_t Size, void *Buffer);
size_t dpm_write(char Letter, uint64_t high_offset, uint64_t low_offset, size_t Size, char* Buffer);
int dpm_reg(char Letter, char* Name, char* FS, int Status, size_t Size, size_t Sectors, size_t SectorSize, int AddrMode, char* Serial, void *Point);
DPM_Disk dpm_info(char Letter);
int dpm_unmount(char Letter, bool FreeReserved);
void dpm_LabelUpdate(char Letter, char* Label);
void dpm_fnc_write(char Letter, dpm_disk_rw_cmd Read, dpm_disk_rw_cmd Write);
int dpm_searchFreeIndex(int Index);