devio.h

Go to the documentation of this file.

/*
 * Copyright 2021-present dogtopus
 * SPDX-License-Identifier: MIT
 */
 
#ifndef __MUTEKI_DEVIO_H__
#define __MUTEKI_DEVIO_H__
 
#include <muteki/common.h>
 
#ifdef __cplusplus
extern "C" {
#endif
 
#define DEVIO_DESC_MAGIC (0x48435842u)
 
typedef void devio_backend_t;
 
typedef struct {
    char path[80];
    devio_backend_t *backend;
    int unk_0x54;
    unsigned int device_id;
    int refcount;
    int access;
    int shmode;
    int on_noentry;
    unsigned int flags_upper;
    unsigned int flags_lower;
    unsigned int magic;
    int unk_0x78;
} devio_descriptor_t; // 0x7c bytes
 
// TODO stubbed definition. Fully implement this later.
typedef char device_service_t[0x4c];
 
#define DEVIO_DESC_INVALID ((devio_descriptor_t *) 0xffffffff)
 
extern devio_descriptor_t *CreateFile(
    const char *pathname,
    unsigned int access,
    unsigned int shmode,
    void *secattr,
    unsigned int on_noentry,
    unsigned int flags,
    void *template_file
);
 
extern bool ReadFile(devio_descriptor_t *devfd, void *buf, size_t size, size_t *actual_size, void *overlapped);
 
extern bool WriteFile(devio_descriptor_t *devfd, const void *buf,size_t size, size_t *actual_size, void *overlapped);
 
extern bool DeviceIoControl(
    devio_descriptor_t *devfd,
    int request,
    const void *in,
    int inlen,
    void *out,
    int outlen,
    int *retlen,
    void *overlapped
);
 
extern bool CloseHandle(devio_descriptor_t *devfd);
 
#ifdef __cplusplus
} // extern "C"
#endif
 
#endif // __MUTEKI_DEVIO_H__urn Whether the operation was successful.