/*
 * Copyright 2003-2007, Axel Dörfler, axeld@pinc-software.de.
 * Distributed under the terms of the MIT License.
 */
#ifndef KERNEL_BOOT_PARTITIONS_H
#define KERNEL_BOOT_PARTITIONS_H


#include <boot/vfs.h>
#include <disk_device_manager.h>


struct file_system_module_info;

namespace boot {

class Partition : public Node, public partition_data {
        public:
                Partition(int deviceFD);
                virtual ~Partition();

                virtual ssize_t ReadAt(void *cookie, off_t offset, void *buffer, size_t bufferSize);
                virtual ssize_t WriteAt(void *cookie, off_t offset, const void *buffer, size_t bufferSize);

                virtual off_t Size() const;
                virtual int32 Type() const;

                Partition *AddChild();

                status_t Mount(Directory **_fileSystem = NULL, bool isBootDevice = false);
                status_t Scan(bool mountFileSystems, bool isBootDevice = false);

                static Partition *Lookup(partition_id id, NodeList *list = NULL);

                void SetParent(Partition *parent);
                Partition *Parent() const;

                bool IsFileSystem() const { return fIsFileSystem; }
                bool IsPartitioningSystem() const { return fIsPartitioningSystem; }
                const char *ModuleName() const { return fModuleName; }

                int FD() const { return fFD; }

        private:
                status_t _Mount(file_system_module_info *module, Directory **_fileSystem);

                int                     fFD;
                NodeList        fChildren;
                Partition       *fParent;
                bool            fIsFileSystem, fIsPartitioningSystem;
                const char      *fModuleName;
};

}       // namespace boot

// DiskDeviceTypes we need/support in the boot loader
#define kPartitionTypeAmiga             "Amiga RDB"
#define kPartitionTypeIntel             "Intel Partition Map"
#define kPartitionTypeIntelExtended "Intel Extended Partition"
        // Note: The naming of these two at least must be consistent with
        // DiskDeviceTypes.cpp.
#define kPartitionTypeApple             "Apple"

#define kPartitionTypeBFS               "BFS Filesystem"
#define kPartitionTypeAmigaFFS  "AmigaFFS Filesystem"
#define kPartitionTypeBTRFS             "BTRFS Filesystem"
#define kPartitionTypeEXFAT             "exFAT Filesystem"
#define kPartitionTypeEXT2              "EXT2 Filesystem"
#define kPartitionTypeEXT3              "EXT3 Filesystem"
#define kPartitionTypeFAT12             "FAT12 Filesystem"
#define kPartitionTypeFAT16             "FAT16 Filesystem"
#define kPartitionTypeFAT32             "FAT32 Filesystem"
#define kPartitionTypeHFS               "HFS Filesystem"
#define kPartitionTypeHFSPlus   "HFS+ Filesystem"
#define kPartitionTypeISO9660   "ISO9660 Filesystem"
#define kPartitionTypeReiser    "Reiser Filesystem"
#define kPartitionTypeTarFS             "TAR Filesystem"
#define kPartitionTypeUDF               "UDF Filesystem"

// structure definitions as used in the boot loader
struct partition_module_info;
extern partition_module_info gAmigaPartitionModule;
extern partition_module_info gApplePartitionModule;
extern partition_module_info gEFIPartitionModule;
extern partition_module_info gIntelPartitionMapModule;
extern partition_module_info gIntelExtendedPartitionModule;

// the file system module info is not a standard module info;
// their modules are specifically written for the boot loader,
// and hence, don't need to follow the standard module specs.

struct file_system_module_info {
        const char      *module_name;
        const char      *pretty_name;
        float           (*identify_file_system)(boot::Partition *device);
        status_t        (*get_file_system)(boot::Partition *device, Directory **_root);
};

extern file_system_module_info gBFSFileSystemModule;
extern file_system_module_info gFATFileSystemModule;
extern file_system_module_info gHFSPlusFileSystemModule;
extern file_system_module_info gAmigaFFSFileSystemModule;
extern file_system_module_info gTarFileSystemModule;

#endif  /* KERNEL_BOOT_PARTITIONS_H */