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/* ========================================
Copyright Amlal El Mahrouss.
File: dev.h
Purpose: DDK device support.
======================================== */
#pragma once
#include <DriverKit/ddk.h>
struct _DDK_DEVICE;
#define DDK_DEVICE_NAME_LEN (255)
/// @brief Kernel Device driver.
typedef struct _DDK_DEVICE DDK_FINAL {
char d_name[DDK_DEVICE_NAME_LEN]; // the device name. Could be /./DEVICE_NAME/
void* (*d_read)(void* arg, int len); // read from device.
void (*d_write)(void* arg, int len);
void (*d_wait)(void); // write to device.
struct _DDK_DEVICE* (*d_open)(const char* path); // open device.
void (*d_close)(struct _DDK_DEVICE* dev); // close device.
void (*d_seek)(struct _DDK_DEVICE* dev, size_t off);
size_t (*d_tell)(struct _DDK_DEVICE* dev);
} DDK_DEVICE, *DDK_DEVICE_PTR;
#define kopen kopen_dev
#define kclose kclose_dev
/// @brief Open a new device from path.
/// @param path the device's path.
DDK_EXTERN DDK_DEVICE_PTR kopen_dev(const char* path);
/// @brief Close any device.
/// @param device valid device.
DDK_EXTERN BOOL kclose_dev(DDK_DEVICE_PTR device);
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