bdm.h

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/*
# _____     ___ ____     ___ ____
#  ____|   |    ____|   |        | |____|
# |     ___|   |____ ___|    ____| |    \    PS2DEV Open Source Project.
#-----------------------------------------------------------------------
# Licenced under Academic Free License version 2.0
# Review ps2sdk README & LICENSE files for further details.
*/
 
#ifndef __BDM_H__
#define __BDM_H__
 
#include <irx.h>
#include <types.h>
 
struct block_device
{
    // Private driver data
    void *priv;
 
    // Device name + number + partition number
    // Can be used to create device names like:
    //  - mass0p1
    char *name;
    unsigned int devNr;
    unsigned int parNr;
    unsigned char parId;
 
    unsigned int sectorSize;        // Size of a sector in bytes
    u64 sectorOffset;               // Starting sector number
    u64 sectorCount;                // Maximum number of sectors usable
 
    int (*read)(struct block_device *bd, u64 sector, void *buffer, u16 count);
    int (*write)(struct block_device *bd, u64 sector, const void *buffer, u16 count);
    void (*flush)(struct block_device *bd);
    int (*stop)(struct block_device *bd);
 
    // Desired iomanX path prefix for this device type (e.g. "usb", "ata").
    // When set, the fatfs driver exposes the device under this prefix (e.g. usb0:, ata0:).
    // Partition drivers should copy this from the parent block device.
    // NULL means the device is only accessible via the legacy "mass:" prefix.
    char *path;
};
 
struct file_system
{
    // Private driver data
    void *priv;
 
    // Filesystem (/partition) name
    char *name;
 
    // mount / umount block device
    int (*connect_bd)(struct block_device *bd);
    void (*disconnect_bd)(struct block_device *bd);
};
 
typedef void (*bdm_cb)(int event);
 
// Exported functions
extern void bdm_connect_bd(struct block_device *bd);
extern void bdm_disconnect_bd(struct block_device *bd);
extern void bdm_connect_fs(struct file_system *fs);
extern void bdm_disconnect_fs(struct file_system *fs);
extern void bdm_get_bd(struct block_device **pbd, unsigned int count);
extern void bdm_RegisterCallback(bdm_cb cb);
 
#define bdm_IMPORTS_start DECLARE_IMPORT_TABLE(bdm, 1, 1)
#define bdm_IMPORTS_end   END_IMPORT_TABLE
 
#define I_bdm_connect_bd       DECLARE_IMPORT(4, bdm_connect_bd)
#define I_bdm_disconnect_bd    DECLARE_IMPORT(5, bdm_disconnect_bd)
#define I_bdm_connect_fs       DECLARE_IMPORT(6, bdm_connect_fs)
#define I_bdm_disconnect_fs    DECLARE_IMPORT(7, bdm_disconnect_fs)
#define I_bdm_get_bd           DECLARE_IMPORT(8, bdm_get_bd)
#define I_bdm_RegisterCallback DECLARE_IMPORT(9, bdm_RegisterCallback)
 
#endif