harddisk.c File Reference

#include "harddisk.h"

Functions
void	harddisk_init (harddisk_configuration configuration)
harddisk_states	harddisk_get_states ()
	Get hard disk states. More...
HARDDISK_STATE	harddisk_get_state (HARDDISK_ATA_MASTER_SLAVE type, HARDDISK_ATA_BUS_TYPE bus)
	Get status of hard disk. More...
const harddisk_identify_device_data *	harddisk_get_identify_data (HARDDISK_ATA_MASTER_SLAVE type, HARDDISK_ATA_BUS_TYPE bus)
	Get identify data of hard disk. More...
char *	harddisk_get_disk_serial_number_terminated (HARDDISK_ATA_MASTER_SLAVE type, HARDDISK_ATA_BUS_TYPE bus, char *buffer)
	Get serial number of hard disk. More...
char *	harddisk_get_disk_firmware_version_terminated (HARDDISK_ATA_MASTER_SLAVE type, HARDDISK_ATA_BUS_TYPE bus, char *buffer)
	Get firmware version of hard disk. More...
char *	harddisk_get_disk_model_number_terminated (HARDDISK_ATA_MASTER_SLAVE type, HARDDISK_ATA_BUS_TYPE bus, char *buffer)
	Get model number of hard disk. More...
uint64_t	harddisk_get_user_addressable_sectors (HARDDISK_ATA_MASTER_SLAVE type, HARDDISK_ATA_BUS_TYPE bus)
	Get user addressable sectors of hard disk. More...
uint64_t	harddisk_get_disk_space (HARDDISK_ATA_MASTER_SLAVE type, HARDDISK_ATA_BUS_TYPE bus)
	Get space of hard disk. More...
bool	harddisk_get_is_removable_media_device (HARDDISK_ATA_MASTER_SLAVE type, HARDDISK_ATA_BUS_TYPE bus)
	Check if device is removable media. More...
int8_t	harddisk_read_sector (HARDDISK_ATA_MASTER_SLAVE type, HARDDISK_ATA_BUS_TYPE bus, uint32_t high_lba, uint32_t low_lba, uint16_t *buffer)
	Reads hard disk sector. More...
int8_t	harddisk_write_sector (HARDDISK_ATA_MASTER_SLAVE type, HARDDISK_ATA_BUS_TYPE bus, uint32_t high_lba, uint32_t low_lba, uint16_t *buffer)
	Write hard disk sector. More...

Variables
harddisk_states	harddisk_current_states
	Current states of all hard drives. More...
harddisk_configuration	harddisk_current_configuration
	Current configuration of harddisk. More...

Function Documentation

harddisk_get_disk_firmware_version_terminated()

char* harddisk_get_disk_firmware_version_terminated	(	HARDDISK_ATA_MASTER_SLAVE	type,
		HARDDISK_ATA_BUS_TYPE	bus,
		char *	buffer
	)

Get firmware version of hard disk.

Function copy firmware version to buffer and terminate string with /0.

Parameters

type	Type of harddisk.
bus	Type of bus.
buffer	Buffer firmware version with size at least 9.

Returns

Pointer to buffer where firmware version is stored.

harddisk_get_disk_model_number_terminated()

char* harddisk_get_disk_model_number_terminated	(	HARDDISK_ATA_MASTER_SLAVE	type,
		HARDDISK_ATA_BUS_TYPE	bus,
		char *	buffer
	)

Get model number of hard disk.

Function copy model number to buffer and terminate string with /0.

Parameters

type	Type of harddisk.
bus	Type of bus.
buffer	Buffer model number with size at least 41.

Returns

Pointer to buffer where model number is stored.

harddisk_get_disk_serial_number_terminated()

char* harddisk_get_disk_serial_number_terminated	(	HARDDISK_ATA_MASTER_SLAVE	type,
		HARDDISK_ATA_BUS_TYPE	bus,
		char *	buffer
	)

Get serial number of hard disk.

Function copy serial number to buffer and terminate string with /0.

Parameters

type	Type of harddisk.
bus	Type of bus.
buffer	Buffer for serial number with size at least 21.

Returns

Pointer to buffer where serial number is stored.

harddisk_get_disk_space()

uint64_t harddisk_get_disk_space	(	HARDDISK_ATA_MASTER_SLAVE	type,
		HARDDISK_ATA_BUS_TYPE	bus
	)

Get space of hard disk.

Parameters

type	Type of harddisk.
bus	Type of bus.

Returns

Space in bytes.

harddisk_get_identify_data()

const harddisk_identify_device_data* harddisk_get_identify_data	(	HARDDISK_ATA_MASTER_SLAVE	type,
		HARDDISK_ATA_BUS_TYPE	bus
	)

Get identify data of hard disk.

Parameters

type	Type of harddisk.
bus	Type of bus.

Returns

Identify data of hard disk.

harddisk_get_is_removable_media_device()

bool harddisk_get_is_removable_media_device	(	HARDDISK_ATA_MASTER_SLAVE	type,
		HARDDISK_ATA_BUS_TYPE	bus
	)

Check if device is removable media.

Check if device can contain removable media.

Parameters

type	Type of harddisk.
bus	Type of bus.

Returns

True if device can contain removable media, false otherwise.

harddisk_get_state()

HARDDISK_STATE harddisk_get_state	(	HARDDISK_ATA_MASTER_SLAVE	type,
		HARDDISK_ATA_BUS_TYPE	bus
	)

Get status of hard disk.

Parameters

type	Type of harddisk.
bus	Type of bus.

Returns

State of hard disk.

harddisk_get_states()

harddisk_states harddisk_get_states

(

)

Get hard disk states.

Call this function after init, which should be called during system boot up.

Returns

State off all hard drives in system.

harddisk_get_user_addressable_sectors()

uint64_t harddisk_get_user_addressable_sectors	(	HARDDISK_ATA_MASTER_SLAVE	type,
		HARDDISK_ATA_BUS_TYPE	bus
	)

Get user addressable sectors of hard disk.

Parameters

type	Type of harddisk.
bus	Type of bus.

Returns

Number of user addressable sectors.

harddisk_init()

void harddisk_init

(

harddisk_configuration

configuration

)

harddisk_read_sector()

int8_t harddisk_read_sector	(	HARDDISK_ATA_MASTER_SLAVE	type,
		HARDDISK_ATA_BUS_TYPE	bus,
		uint32_t	high_lba,
		uint32_t	low_lba,
		uint16_t *	buffer
	)

Reads hard disk sector.

Parameters

type	Type of harddisk.
bus	Type of bus.
high_lba	Higher bits of lba (24 bits are used).
low_lba	Lower bits of lba (24 bits are used).
buffer	Buffer of 256 16-bits values for store data.

Returns

1 = success, -1 = disk error, -2 = parameter error.

harddisk_write_sector()

int8_t harddisk_write_sector	(	HARDDISK_ATA_MASTER_SLAVE	type,
		HARDDISK_ATA_BUS_TYPE	bus,
		uint32_t	high_lba,
		uint32_t	low_lba,
		uint16_t *	buffer
	)

Write hard disk sector.

Parameters

type	Type of harddisk.
bus	Type of bus.
high_lba	Higher bits of lba (24 bits are used).
low_lba	Lower bits of lba (24 bits are used).
buffer	Buffer of 256 16-bits values for store data.

Returns

1 = success, -1 = disk error, -2 = parameter error.

Variable Documentation

harddisk_current_configuration

harddisk_configuration harddisk_current_configuration

Current configuration of harddisk.

harddisk_current_states

harddisk_states harddisk_current_states

Current states of all hard drives.