AHCI Driver

Functions
uint8_t	AHCI_Initialize (void)
	Initialize the AHCI controller. More...
void	AHCI_Reset (void)
	Reset the AHCI controller. More...
uint8_t	AHCI_CheckDeviceType (HBA_PORT *port)
	Check the device type of the current port. More...
bool	AHCI_Read (HBA_PORT *port, uint64_t start, uint32_t count, uint16_t *buf)
	Read from the disk. More...
bool	AHCI_0_Read (uint64_t start, uint32_t count, uint16_t *buf)
	Read from the first disk. More...
bool	AHCI_Write (HBA_PORT *port, uint64_t start, uint32_t count, uint16_t *buf)
	Write to the disk. More...
bool	AHCI_0_Write (uint64_t start, uint32_t count, uint16_t *buf)
	Write to the first disk. More...

Detailed Description

Function Documentation

bool AHCI_0_Read	(	uint64_t	start,
		uint32_t	count,
		uint16_t *	buf
	)

Read from the first disk.

Parameters

start	The LBA48 sector start address
count	The number of bytes to copy over, this is rounded up to a multiple of 32
buf	The buffer to put the read data into

Returns

TRUE on read success, FALSe on failure

bool AHCI_0_Write	(	uint64_t	start,
		uint32_t	count,
		uint16_t *	buf
	)

Write to the first disk.

Parameters

start	The LBA48 sector start address
count	The number of bytes to write, this is rounded down to a multiple of 512
buf	The buffer to read data from

Returns

TRUE on write success, FALSE on failure

uint8_t AHCI_CheckDeviceType

(

HBA_PORT *

port

)

Check the device type of the current port.

Returns

the AHCI device type

uint8_t AHCI_Initialize

(

void

)

Initialize the AHCI controller.

Returns

0 on success, anything else on failure

bool AHCI_Read	(	HBA_PORT *	port,
		uint64_t	start,
		uint32_t	count,
		uint16_t *	buf
	)

Read from the disk.

Parameters

start	The LBA48 sector start address
count	The number of bytes to copy over, this is rounded up to a multiple of 512
buf	The buffer to put the read data into

Returns

TRUE on read success, FALSE on failure

void AHCI_Reset

(

void

)

Reset the AHCI controller.

bool AHCI_Write	(	HBA_PORT *	port,
		uint64_t	start,
		uint32_t	count,
		uint16_t *	buf
	)

Write to the disk.

Parameters

start	The LBA48 sector start address
count	The number of bytes to write, this is rounded down to a multiple of 512
buf	The buffer to read data from

Returns

TRUE on write success, FALSE on failure