xref: /OK3568_Linux_fs/kernel/arch/um/drivers/mconsole_kern.h (revision 4882a59341e53eb6f0b4789bf948001014eff981)
1*4882a593Smuzhiyun /* SPDX-License-Identifier: GPL-2.0 */
2*4882a593Smuzhiyun /*
3*4882a593Smuzhiyun  * Copyright (C) 2001, 2002 Jeff Dike (jdike@karaya.com)
4*4882a593Smuzhiyun  */
5*4882a593Smuzhiyun 
6*4882a593Smuzhiyun #ifndef __MCONSOLE_KERN_H__
7*4882a593Smuzhiyun #define __MCONSOLE_KERN_H__
8*4882a593Smuzhiyun 
9*4882a593Smuzhiyun #include <linux/list.h>
10*4882a593Smuzhiyun #include "mconsole.h"
11*4882a593Smuzhiyun 
12*4882a593Smuzhiyun struct mconsole_entry {
13*4882a593Smuzhiyun 	struct list_head list;
14*4882a593Smuzhiyun 	struct mc_request request;
15*4882a593Smuzhiyun };
16*4882a593Smuzhiyun 
17*4882a593Smuzhiyun /* All these methods are called in process context. */
18*4882a593Smuzhiyun struct mc_device {
19*4882a593Smuzhiyun 	struct list_head list;
20*4882a593Smuzhiyun 	char *name;
21*4882a593Smuzhiyun 	int (*config)(char *, char **);
22*4882a593Smuzhiyun 	int (*get_config)(char *, char *, int, char **);
23*4882a593Smuzhiyun 	int (*id)(char **, int *, int *);
24*4882a593Smuzhiyun 	int (*remove)(int, char **);
25*4882a593Smuzhiyun };
26*4882a593Smuzhiyun 
27*4882a593Smuzhiyun #define CONFIG_CHUNK(str, size, current, chunk, end) \
28*4882a593Smuzhiyun do { \
29*4882a593Smuzhiyun 	current += strlen(chunk); \
30*4882a593Smuzhiyun 	if(current >= size) \
31*4882a593Smuzhiyun 		str = NULL; \
32*4882a593Smuzhiyun 	if(str != NULL){ \
33*4882a593Smuzhiyun 		strcpy(str, chunk); \
34*4882a593Smuzhiyun 		str += strlen(chunk); \
35*4882a593Smuzhiyun 	} \
36*4882a593Smuzhiyun 	if(end) \
37*4882a593Smuzhiyun 		current++; \
38*4882a593Smuzhiyun } while(0)
39*4882a593Smuzhiyun 
40*4882a593Smuzhiyun #ifdef CONFIG_MCONSOLE
41*4882a593Smuzhiyun 
42*4882a593Smuzhiyun extern void mconsole_register_dev(struct mc_device *new);
43*4882a593Smuzhiyun 
44*4882a593Smuzhiyun #else
45*4882a593Smuzhiyun 
mconsole_register_dev(struct mc_device * new)46*4882a593Smuzhiyun static inline void mconsole_register_dev(struct mc_device *new)
47*4882a593Smuzhiyun {
48*4882a593Smuzhiyun }
49*4882a593Smuzhiyun 
50*4882a593Smuzhiyun #endif
51*4882a593Smuzhiyun 
52*4882a593Smuzhiyun #endif
53