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/**
* Copyright 2010 ARM, Ltd.
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License version 2 as
* published by the Free Software Foundation.
*/
#ifndef GATOR_H_
#define GATOR_H_
#include <linux/version.h>
#include <linux/fs.h>
#include <linux/mm.h>
/******************************************************************************
* Filesystem
******************************************************************************/
int gatorfs_create_file_perm(struct super_block *sb, struct dentry *root,
char const *name, const struct file_operations *fops, int perm);
struct dentry *gatorfs_mkdir(struct super_block *sb,
struct dentry *root, char const *name);
int gatorfs_create_ulong(struct super_block *sb, struct dentry *root,
char const *name, unsigned long *val);
int gatorfs_create_ro_ulong(struct super_block *sb, struct dentry *root,
char const *name, unsigned long *val);
/******************************************************************************
* Tracepoints
******************************************************************************/
#if LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 32)
# error Kernels prior to 2.6.32 not supported
#elif LINUX_VERSION_CODE < KERNEL_VERSION(2, 6, 35)
# define GATOR_DEFINE_PROBE(probe_name, proto) \
static void probe_##probe_name(PARAMS(proto))
# define GATOR_REGISTER_TRACE(probe_name) \
register_trace_##probe_name(probe_##probe_name)
# define GATOR_UNREGISTER_TRACE(probe_name) \
unregister_trace_##probe_name(probe_##probe_name)
#else
# define GATOR_DEFINE_PROBE(probe_name, proto) \
static void probe_##probe_name(void *data, PARAMS(proto))
# define GATOR_REGISTER_TRACE(probe_name) \
register_trace_##probe_name(probe_##probe_name, NULL)
# define GATOR_UNREGISTER_TRACE(probe_name) \
unregister_trace_##probe_name(probe_##probe_name, NULL)
#endif
/******************************************************************************
* Events
******************************************************************************/
struct __gator_interface {
int (*create_files)(struct super_block *sb, struct dentry *root);
int (*init)(int *key);
int (*start)(void);
void (*stop)(void);
void (*online)(void);
void (*offline)(void);
int (*read)(int **buffer);
struct __gator_interface *next;
};
typedef struct __gator_interface gator_interface;
int gator_event_install(int (*event_install)(gator_interface *));
extern unsigned long gator_net_traffic;
#endif // GATOR_H_
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