1 /****************************************************************************
2  ****************************************************************************
3  ***
4  ***   This header was automatically generated from a Linux kernel header
5  ***   of the same name, to make information necessary for userspace to
6  ***   call into the kernel available to libc.  It contains only constants,
7  ***   structures, and macros generated from the original header, and thus,
8  ***   contains no copyrightable information.
9  ***
10  ****************************************************************************
11  ****************************************************************************/
12 #ifndef _LINUX_MODULE_PARAMS_H
13 #define _LINUX_MODULE_PARAMS_H
14 
15 #include <linux/init.h>
16 #include <linux/stringify.h>
17 #include <linux/kernel.h>
18 
19 #ifdef MODULE
20 #define MODULE_PARAM_PREFIX
21 #else
22 #define MODULE_PARAM_PREFIX KBUILD_MODNAME "."
23 #endif
24 
25 #ifdef MODULE
26 #define ___module_cat(a,b) __mod_ ## a ## b
27 #define __module_cat(a,b) ___module_cat(a,b)
28 #define __MODULE_INFO(tag, name, info)  static const char __module_cat(name,__LINE__)[]   __attribute_used__   __attribute__((section(".modinfo"),unused)) = __stringify(tag) "=" info
29 #else
30 #define __MODULE_INFO(tag, name, info)
31 #endif
32 #define __MODULE_PARM_TYPE(name, _type)   __MODULE_INFO(parmtype, name##type, #name ":" _type)
33 
34 struct kernel_param;
35 
36 typedef int (*param_set_fn)(const char *val, struct kernel_param *kp);
37 
38 typedef int (*param_get_fn)(char *buffer, struct kernel_param *kp);
39 
40 struct kernel_param {
41  const char *name;
42  unsigned int perm;
43  param_set_fn set;
44  param_get_fn get;
45  void *arg;
46 };
47 
48 struct kparam_string {
49  unsigned int maxlen;
50  char *string;
51 };
52 
53 struct kparam_array
54 {
55  unsigned int max;
56  unsigned int *num;
57  param_set_fn set;
58  param_get_fn get;
59  unsigned int elemsize;
60  void *elem;
61 };
62 
63 #define __module_param_call(prefix, name, set, get, arg, perm)   static char __param_str_##name[] = prefix #name;   static struct kernel_param const __param_##name   __attribute_used__   __attribute__ ((unused,__section__ ("__param"),aligned(sizeof(void *))))   = { __param_str_##name, perm, set, get, arg }
64 
65 #define module_param_call(name, set, get, arg, perm)   __module_param_call(MODULE_PARAM_PREFIX, name, set, get, arg, perm)
66 
67 #define module_param_named(name, value, type, perm)   param_check_##type(name, &(value));   module_param_call(name, param_set_##type, param_get_##type, &value, perm);   __MODULE_PARM_TYPE(name, #type)
68 
69 #define module_param(name, type, perm)   module_param_named(name, name, type, perm)
70 
71 #define module_param_string(name, string, len, perm)   static struct kparam_string __param_string_##name   = { len, string };   module_param_call(name, param_set_copystring, param_get_string,   &__param_string_##name, perm);   __MODULE_PARM_TYPE(name, "string")
72 
73 #define __param_check(name, p, type)   static inline type *__check_##name(void) { return(p); }
74 
75 #define param_check_byte(name, p) __param_check(name, p, unsigned char)
76 
77 #define param_check_short(name, p) __param_check(name, p, short)
78 
79 #define param_check_ushort(name, p) __param_check(name, p, unsigned short)
80 
81 #define param_check_int(name, p) __param_check(name, p, int)
82 
83 #define param_check_uint(name, p) __param_check(name, p, unsigned int)
84 
85 #define param_check_long(name, p) __param_check(name, p, long)
86 
87 #define param_check_ulong(name, p) __param_check(name, p, unsigned long)
88 
89 #define param_check_charp(name, p) __param_check(name, p, char *)
90 
91 #define param_check_bool(name, p) __param_check(name, p, int)
92 
93 #define param_check_invbool(name, p) __param_check(name, p, int)
94 
95 #define module_param_array_named(name, array, type, nump, perm)   static struct kparam_array __param_arr_##name   = { ARRAY_SIZE(array), nump, param_set_##type, param_get_##type,  sizeof(array[0]), array };   module_param_call(name, param_array_set, param_array_get,   &__param_arr_##name, perm);   __MODULE_PARM_TYPE(name, "array of " #type)
96 
97 #define module_param_array(name, type, nump, perm)   module_param_array_named(name, name, type, nump, perm)
98 
99 struct module;
100 
101 #endif
102