ahci.c File Reference

#include "ahci.h"
#include "../../assert.h"
#include "../../includes/mg.h"
#include "../../includes/mm.h"

Go to the source code of this file.

Data Structures
struct	_AHCI_PORT_CTX

Typedefs
typedef struct _AHCI_PORT_CTX	AHCI_PORT_CTX

Functions
MTSTATUS	ahci_init (void)
	#define AHCI_DEBUG_PRINT
MTSTATUS	ahci_read_sector (BLOCK_DEVICE *dev, uint32_t lba, void *buf, size_t bytes)
	Read a single bytes-byte sector from the given LBA on a specific BLOCK_DEVICE.
MTSTATUS	ahci_write_sector (BLOCK_DEVICE *dev, uint32_t lba, const void *buf, size_t bytes)
	Write a single bytes-byte sector to given LBA on a specific BLOCK_DEVICE.
BLOCK_DEVICE *	ahci_get_block_device (int index)
	Retrieve a pointer to the AHCI driver's BLOCK_DEVICE instance.

Variables
BOOT_INFO	boot_info_local
GOP_PARAMS	gop_local
bool	ahci_initialized = false

Typedef Documentation

AHCI_PORT_CTX

typedef struct _AHCI_PORT_CTX AHCI_PORT_CTX

Function Documentation

ahci_get_block_device()

BLOCK_DEVICE * ahci_get_block_device

(

int

index

)

Retrieve a pointer to the AHCI driver's BLOCK_DEVICE instance.

Parameters

index

Index of the BLOCK_DEVICE registration.

Returns

A BLOCK_DEVICE struct pointer.

Definition at line 562 of file ahci.c.

ahci_init()

MTSTATUS ahci_init

(

void

)

#define AHCI_DEBUG_PRINT

Initialize the AHCI Driver.

Returns

True or False based if it initialized correctly or not. (if failure = bugcheck)

Definition at line 292 of file ahci.c.

ahci_read_sector()

MTSTATUS ahci_read_sector	(	BLOCK_DEVICE *	dev,
		uint32_t	lba,
		void *	buf,
		size_t	bytes )

Read a single bytes-byte sector from the given LBA on a specific BLOCK_DEVICE.

Parameters

dev	Takes the BLOCK_DEVICE device pointer (on register_block_device)
lba	LBA to read from.
buf	Return buffer to place the data read.

Returns

True or False based on succession | buf pointer changes.

Definition at line 330 of file ahci.c.

ahci_write_sector()

MTSTATUS ahci_write_sector	(	BLOCK_DEVICE *	dev,
		uint32_t	lba,
		const void *	buf,
		size_t	bytes )

Write a single bytes-byte sector to given LBA on a specific BLOCK_DEVICE.

Parameters

dev	Takes the BLOCK_DEVICE device pointer (on register_block_device)
lba	LBA to read from.
buf	The buffer to write to the specified LBA.

Returns

True or False based on succession

Definition at line 450 of file ahci.c.

Variable Documentation

ahci_initialized

bool ahci_initialized = false

Definition at line 290 of file ahci.c.

boot_info_local

BOOT_INFO boot_info_local

extern

Definition at line 27 of file kernel.c.

gop_local

GOP_PARAMS gop_local

extern

Definition at line 26 of file kernel.c.