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/*
libparted - a library for manipulating disk partitions
Copyright (C) 1998-2001, 2005, 2007-2008, 2011-2014 Free Software
Foundation, Inc.
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 3 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* \addtogroup PedDevice
* @{
*/
/** \file device.h */
#ifndef PED_DEVICE_H_INCLUDED
#define PED_DEVICE_H_INCLUDED
/** We can address 2^63 sectors */
typedef long long PedSector;
typedef enum {
PED_DEVICE_UNKNOWN = 0,
PED_DEVICE_SCSI = 1,
PED_DEVICE_IDE = 2,
PED_DEVICE_DAC960 = 3,
PED_DEVICE_CPQARRAY = 4,
PED_DEVICE_FILE = 5,
PED_DEVICE_ATARAID = 6,
PED_DEVICE_I2O = 7,
PED_DEVICE_UBD = 8,
PED_DEVICE_DASD = 9,
PED_DEVICE_VIODASD = 10,
PED_DEVICE_SX8 = 11,
PED_DEVICE_DM = 12,
PED_DEVICE_XVD = 13,
PED_DEVICE_SDMMC = 14,
PED_DEVICE_VIRTBLK = 15,
PED_DEVICE_AOE = 16,
PED_DEVICE_MD = 17,
PED_DEVICE_LOOP = 18,
PED_DEVICE_NVME = 19
} PedDeviceType;
typedef struct _PedDevice PedDevice;
typedef struct _PedDeviceArchOps PedDeviceArchOps;
typedef struct _PedCHSGeometry PedCHSGeometry;
/**
* A cylinder-head-sector "old-style" geometry.
*
* A device addressed in this way has C*H*S sectors.
*/
struct _PedCHSGeometry {
int cylinders;
int heads;
int sectors;
};
/** A block device - for example, /dev/hda, not /dev/hda3 */
struct _PedDevice {
PedDevice* next;
char* model; /**< \brief description of hardware
(manufacturer, model) */
char* path; /**< device /dev entry */
PedDeviceType type; /**< SCSI, IDE, etc. \sa PedDeviceType */
long long sector_size; /**< logical sector size */
long long phys_sector_size; /**< physical sector size */
PedSector length; /**< device length (LBA) */
int open_count; /**< the number of times this device has
been opened with ped_device_open(). */
int read_only;
int external_mode;
int dirty;
int boot_dirty;
PedCHSGeometry hw_geom;
PedCHSGeometry bios_geom;
short host, did;
void* arch_specific;
};
#include <parted/natmath.h>
/**
* List of functions implementing architecture-specific operations.
*/
struct _PedDeviceArchOps {
PedDevice* (*_new) (const char* path);
void (*destroy) (PedDevice* dev);
int (*is_busy) (PedDevice* dev);
int (*open) (PedDevice* dev);
int (*refresh_open) (PedDevice* dev);
int (*close) (PedDevice* dev);
int (*refresh_close) (PedDevice* dev);
int (*read) (const PedDevice* dev, void* buffer,
PedSector start, PedSector count);
int (*write) (PedDevice* dev, const void* buffer,
PedSector start, PedSector count);
int (*sync) (PedDevice* dev);
int (*sync_fast) (PedDevice* dev);
PedSector (*check) (PedDevice* dev, void* buffer,
PedSector start, PedSector count);
void (*probe_all) ();
/* These functions are optional */
PedAlignment *(*get_minimum_alignment)(const PedDevice *dev);
PedAlignment *(*get_optimum_alignment)(const PedDevice *dev);
};
#include <parted/constraint.h>
#include <parted/timer.h>
extern void ped_device_probe_all ();
extern void ped_device_free_all ();
extern PedDevice* ped_device_get (const char* name);
extern PedDevice* ped_device_get_next (const PedDevice* dev)
#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 96)
__attribute ((__pure__))
#endif
;
extern int ped_device_is_busy (PedDevice* dev);
extern int ped_device_open (PedDevice* dev);
extern int ped_device_close (PedDevice* dev);
extern void ped_device_destroy (PedDevice* dev);
extern void ped_device_cache_remove (PedDevice* dev);
extern int ped_device_begin_external_access (PedDevice* dev);
extern int ped_device_end_external_access (PedDevice* dev);
extern int ped_device_read (const PedDevice* dev, void* buffer,
PedSector start, PedSector count);
extern int ped_device_write (PedDevice* dev, const void* buffer,
PedSector start, PedSector count);
extern int ped_device_sync (PedDevice* dev);
extern int ped_device_sync_fast (PedDevice* dev);
extern PedSector ped_device_check (PedDevice* dev, void* buffer,
PedSector start, PedSector count);
extern PedConstraint* ped_device_get_constraint (const PedDevice* dev);
extern PedConstraint *ped_device_get_minimal_aligned_constraint(
const PedDevice *dev);
extern PedConstraint *ped_device_get_optimal_aligned_constraint(
const PedDevice *dev);
extern PedAlignment *ped_device_get_minimum_alignment(const PedDevice *dev);
extern PedAlignment *ped_device_get_optimum_alignment(const PedDevice *dev);
/* private stuff ;-) */
extern void _ped_device_probe (const char* path);
#endif /* PED_DEVICE_H_INCLUDED */
/** @} */
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