block_device.c File Reference

#include <miniOS/drivers/block_device.h>
#include <miniOS/io.h>
#include <string.h>

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Functions
void	blkdev_init (void)
int	blkdev_register (const char *name, uint8_t major, uint8_t minor, uint64_t lba_start, uint64_t lba_end, bool is_partition)
const block_device_t *	blkdev_find (uint8_t major, uint8_t minor)
const block_device_t *	blkdev_get (int index)
int	blkdev_count (void)

Variables
static block_device_t	g_devices [BLKDEV_MAX]
static int	g_count

Function Documentation

blkdev_count()

int blkdev_count

(

void

)

blkdev_count() - Return the number of registered block devices.

blkdev_find()

const block_device_t * blkdev_find	(	uint8_t	major,
		uint8_t	minor )

blkdev_find() - Look up a block device by major and minor number. @major: Device major number. @minor: Device minor number.

Returns

: Pointer to the registry entry, or NULL if not found.

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blkdev_get()

const block_device_t * blkdev_get

(

int

index

)

blkdev_get() - Get a block device by index. @index: Zero-based index into the registry.

Returns

: Pointer to the entry, or NULL if @index is out of range.

blkdev_init()

void blkdev_init

(

void

)

blkdev_init() - Clear the block device registry. Called once during kernel startup before any blkdev_register() calls.

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blkdev_register()

int blkdev_register	(	const char *	name,
		uint8_t	major,
		uint8_t	minor,
		uint64_t	lba_start,
		uint64_t	lba_end,
		bool	is_partition )

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Variable Documentation

g_count

int g_count

static

g_devices

block_device_t g_devices[BLKDEV_MAX]

static