Rick Rongen
2ac0da6574
added ide block device added mbr block device driver started fat block device driver reordered boot start timer before pci/ide/etc. enable interrupts earlier fixed exception from ide controller cleanup code more printfs
72 lines
1.6 KiB
C
72 lines
1.6 KiB
C
//
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// Created by rick on 06-02-21.
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//
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#ifndef NEW_KERNEL_BLOCKDEV_H
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#define NEW_KERNEL_BLOCKDEV_H
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#include <types.h>
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#define BLOCK_DEV_ACCESS_OK 0
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#define BLOCK_DEV_ACCESS_ERR 1
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#define BLOCK_DEV_DIRECTION_READ 0
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#define BLOCK_DEV_DIRECTION_WRITE 1
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#define BLOCK_DEV_DRIVER_CHECK_OK 0
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#define BLOCK_DEV_DRIVER_CHECK_NO_MATCH 1
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#define BLOCK_DEV_REGISTER_DRIVER_OK 0
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#define BLOCK_DEV_REGISTER_DRIVER_FULL 1
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#define BLOCK_DEV_REGISTER_OK 0
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#define BLOCK_DEV_REGISTER_FULL 1
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typedef struct block_device block_device;
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typedef u8 (*block_device_driver_check_device)(const block_device *device, u8 *first_sector);
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typedef u8 (*block_device_driver_free)(const block_device *device);
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typedef u8 (*block_device_access)(const block_device *device, u8 direction, u32 lba, u8 sectors, void *target);
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typedef struct {
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char name[16];
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struct {
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u8 root_only: 1;
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} flags;
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block_device_driver_check_device check_device;
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block_device_driver_free free_device;
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} block_dev_driver;
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typedef struct block_device {
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struct {
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u8 present: 1;
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u8 scanned: 1;
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u8 unreadable: 1;
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u8 root_device: 1;
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u8 driver_installed: 1;
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} flags;
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char identifier[16];
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u32 num_lba;
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u16 block_size;
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block_device_access access;
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block_dev_driver *driver;
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void *device_info; // pointer to driver defined structure
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// todo device info
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} block_device;
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u8 block_dev_register_driver(block_dev_driver *driver);
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u8 block_dev_register(block_device *device);
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void block_dev_free(block_device *device);
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void block_dev_scan_repeat();
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void block_dev_print_info();
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#endif //NEW_KERNEL_BLOCKDEV_H
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