+++ /dev/null
-#ifndef _LWK_PARAMS_H
-#define _LWK_PARAMS_H
-/* (C) Copyright 2001, 2002 Rusty Russell IBM Corporation */
-#include <lwk/init.h>
-#include <lwk/stringify.h>
-#include <lwk/kernel.h>
-
-struct kernel_param;
-
-/* Returns 0, or -errno. arg is in kp->arg. */
-typedef int (*param_set_fn)(const char *val, struct kernel_param *kp);
-/* Returns length written or -errno. Buffer is 4k (ie. be short!) */
-typedef int (*param_get_fn)(char *buffer, struct kernel_param *kp);
-
-struct kernel_param {
- const char * name;
- param_set_fn set;
- param_get_fn get;
- void * arg;
-};
-
-/* Special one for strings we want to copy into */
-struct kparam_string {
- unsigned int maxlen;
- char * string;
-};
-
-/* Special one for arrays */
-struct kparam_array {
- unsigned int max;
- unsigned int * num;
- param_set_fn set;
- param_get_fn get;
- unsigned int elemsize;
- void * elem;
-};
-
-/* This is the fundamental function for registering kernel parameters. */
-#define __param_call(prefix, name, set, get, arg) \
- 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, set, get, arg }
-
-/* Helper functions: type is byte, short, ushort, int, uint, long,
- ulong, charp, bool or invbool, or XXX if you define param_get_XXX,
- param_set_XXX and param_check_XXX. */
-#define __param_named(prefix, name, value, type) \
- param_check_##type(name, &(value)); \
- __param_call(prefix, name, param_set_##type, param_get_##type, &value)
-
-/* Actually copy string: maxlen param is usually sizeof(string). */
-#define __param_string(prefix, name, string, len) \
- static struct kparam_string __param_string_##name \
- = { len, string }; \
- __param_call(prefix, name, param_set_copystring, \
- param_get_string, &__param_string_##name)
-
-/* Comma-separated array: *nump is set to number they actually specified. */
-#define __param_array_named(prefix, name, array, type, nump) \
- static struct kparam_array __param_arr_##name \
- = { ARRAY_SIZE(array), nump, param_set_##type, param_get_##type,\
- sizeof(array[0]), array }; \
- __param_call(prefix, name, param_array_set, param_array_get, \
- &__param_arr_##name)
-
-/* Call a function to parse the parameter */
-#define __param_func(prefix, name, func) \
- __param_call(prefix, name, func, NULL, NULL)
-
-/*
- * Basic parameter interface. These are just raw... they have no prefix.
- */
-#define param(name, type) \
- __param_named("", name, name, type)
-
-#define param_named(name, value, type) \
- __param_named("", name, value, type)
-
-#define param_string(name, string, len) \
- __param_string("", name, string, len)
-
-#define param_array(name, type, nump) \
- __param_array_named("", name, name, type, nump)
-
-#define param_array_named(name, array, type, nump) \
- __param_array_named("", name, array, type, nump)
-
-#define param_func(name, func) \
- __param_func("", name, func)
-
-/* Called at kernel boot */
-extern int parse_args(const char *name,
- char *args,
- struct kernel_param *params,
- unsigned num,
- int (*unknown)(char *param, char *val));
-
-/* All the helper functions */
-/* The macros to do compile-time type checking stolen from Jakub
- Jelinek, who IIRC came up with this idea for the 2.4 module init code. */
-#define __param_check(name, p, type) \
- static inline type *__check_##name(void) { return(p); }
-
-extern int param_set_byte(const char *val, struct kernel_param *kp);
-extern int param_get_byte(char *buffer, struct kernel_param *kp);
-#define param_check_byte(name, p) __param_check(name, p, unsigned char)
-
-extern int param_set_short(const char *val, struct kernel_param *kp);
-extern int param_get_short(char *buffer, struct kernel_param *kp);
-#define param_check_short(name, p) __param_check(name, p, short)
-
-extern int param_set_ushort(const char *val, struct kernel_param *kp);
-extern int param_get_ushort(char *buffer, struct kernel_param *kp);
-#define param_check_ushort(name, p) __param_check(name, p, unsigned short)
-
-extern int param_set_int(const char *val, struct kernel_param *kp);
-extern int param_get_int(char *buffer, struct kernel_param *kp);
-#define param_check_int(name, p) __param_check(name, p, int)
-
-extern int param_set_uint(const char *val, struct kernel_param *kp);
-extern int param_get_uint(char *buffer, struct kernel_param *kp);
-#define param_check_uint(name, p) __param_check(name, p, unsigned int)
-
-extern int param_set_long(const char *val, struct kernel_param *kp);
-extern int param_get_long(char *buffer, struct kernel_param *kp);
-#define param_check_long(name, p) __param_check(name, p, long)
-
-extern int param_set_ulong(const char *val, struct kernel_param *kp);
-extern int param_get_ulong(char *buffer, struct kernel_param *kp);
-#define param_check_ulong(name, p) __param_check(name, p, unsigned long)
-
-extern int param_set_charp(const char *val, struct kernel_param *kp);
-extern int param_get_charp(char *buffer, struct kernel_param *kp);
-#define param_check_charp(name, p) __param_check(name, p, char *)
-
-extern int param_set_bool(const char *val, struct kernel_param *kp);
-extern int param_get_bool(char *buffer, struct kernel_param *kp);
-#define param_check_bool(name, p) __param_check(name, p, int)
-
-extern int param_set_invbool(const char *val, struct kernel_param *kp);
-extern int param_get_invbool(char *buffer, struct kernel_param *kp);
-#define param_check_invbool(name, p) __param_check(name, p, int)
-
-extern int param_array_set(const char *val, struct kernel_param *kp);
-extern int param_array_get(char *buffer, struct kernel_param *kp);
-
-extern int param_set_copystring(const char *val, struct kernel_param *kp);
-extern int param_get_string(char *buffer, struct kernel_param *kp);
-
-extern int parse_params(const char *str);
-extern int param_set_by_name_int(char *param, int val);
-
-/*
- * These two symbols are defined by the platform's linker script.
- * They surround a table of kernel parameter descriptors. This table
- * is used by the command line parser to determine how each argument
- * should be handled... each encountered argument causes a search of
- * this table.
- */
-extern struct kernel_param __start___param[], __stop___param[];
-
-#endif /* _LWK_PARAMS_H */