device.c File Reference

implementation of the device More...

#include "include/device.h"
#include "include/log.h"
#include "include/ramdisk.h"
#include <stdlib.h>
#include <string.h>
#include <assert.h>
#include <errno.h>
#include <pthread.h>

Include dependency graph for device.c:

Functions
struct device_request *	device_alloc_request (uint64_t flags)
	dynamic allocate the device request More...
void	device_free_request (struct device_request *request)
	free pre-allocated device_request resource More...
int	device_module_init (const uint64_t modnum, struct device **__dev, uint64_t flags)
	initialize the device module More...
int	device_module_exit (struct device *dev)
	deallocate the device module More...

Variables
static int(*	submodule_init [])(struct device *, uint64_t)
	initialize the submodule More...

Detailed Description

implementation of the device

Author

Gijun Oh

Version

0.2

Date

2021-10-01

Function Documentation

device_alloc_request()

struct device_request* device_alloc_request

(

uint64_t

flags

)

dynamic allocate the device request

Parameters

flags

flags for allocate the device request

Returns

device_request pointer when it is allocated or NULL when it is not allocated

device_free_request()

void device_free_request

(

struct device_request *

request

)

free pre-allocated device_request resource

Parameters

request

pointer of the device request

device_module_exit()

int device_module_exit

(

struct device *

dev

)

deallocate the device module

Parameters

dev	pointer of the device module's structure

Returns

0 for success, negative value for fail

device_module_init()

int device_module_init	(	const uint64_t	modnum,
		struct device **	__dev,
		uint64_t	flags
	)

initialize the device module

Parameters

modnum	module's number
__dev	device structure pointer (will be allocated)
flags	initializing flag

Returns

0 for success, negative value for fail

Here is the call graph for this function:

Variable Documentation

submodule_init

int(* submodule_init[])(struct device *, uint64_t)

static

Initial value:

= {
     ramdisk_device_init,



     NULL,




     NULL,

}

initialize the submodule

Parameters

device	pointer of the device structure
uint64_t	contain the flag information