127 lines
3.9 KiB
C
127 lines
3.9 KiB
C
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/*! \file lkm.h
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*
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* <description>
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*
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*/
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/*
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* $Copyright: Copyright 2018-2020 Broadcom. All rights reserved.
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* The term 'Broadcom' refers to Broadcom Inc. and/or its subsidiaries.
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License
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* version 2 as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* A copy of the GNU General Public License version 2 (GPLv2) can
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* be found in the LICENSES folder.$
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*/
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#ifndef LKM_H
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#define LKM_H
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#include <linux/init.h>
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#include <linux/version.h>
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#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,20)
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#error Kernel too old
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#endif
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#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,1,0)
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#include <linux/kconfig.h>
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#endif
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#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,10,0)
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#include <linux/slab.h>
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#endif
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#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,39)
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#include <linux/smp_lock.h>
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#endif
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#include <linux/module.h>
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#include <linux/kernel.h>
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#include <linux/fs.h>
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#include <linux/errno.h>
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#include <linux/types.h>
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#include <linux/proc_fs.h>
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#include <linux/seq_file.h>
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#include <linux/fcntl.h>
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#include <linux/pci.h>
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#include <linux/interrupt.h>
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#include <linux/stat.h>
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#include <linux/sched.h>
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#include <linux/delay.h>
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#include <linux/timer.h>
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#include <linux/uaccess.h>
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#include <asm/io.h>
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#include <asm/hardirq.h>
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#ifdef CONFIG_DEVFS_FS
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#include <linux/devfs_fs_kernel.h>
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#endif
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/* Compatibility Macros */
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#if LINUX_VERSION_CODE >= KERNEL_VERSION(3,10,0)
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#define PROC_CREATE(_entry, _name, _acc, _path, _fops) \
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do { \
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_entry = proc_create(_name, _acc, _path, _fops); \
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} while (0)
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#define PROC_CREATE_DATA(_entry, _name, _acc, _path, _fops, _data) \
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do { \
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_entry = proc_create_data(_name, _acc, _path, _fops, _data); \
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} while (0)
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#define PROC_PDE_DATA(_node) PDE_DATA(_node)
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#else
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#define PROC_CREATE(_entry, _name, _acc, _path, _fops) \
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do { \
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_entry = create_proc_entry(_name, _acc, _path); \
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if (_entry) { \
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_entry->proc_fops = _fops; \
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} \
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} while (0)
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#define PROC_CREATE_DATA(_entry, _name, _acc, _path, _fops, _data) \
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do { \
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_entry = create_proc_entry(_name, _acc, _path); \
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if (_entry) { \
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_entry->proc_fops = _fops; \
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_entry->data=_data; \
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} \
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} while (0)
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#define PROC_PDE_DATA(_node) PROC_I(_node)->pde->data
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#endif
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#if LINUX_VERSION_CODE < KERNEL_VERSION(4,15,0)
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#define timer_arg(var, context, timer_fieldname) \
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(typeof(var))(context)
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#define timer_context_t unsigned long
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#else
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#define timer_context_t struct timer_list *
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#define timer_arg(var, context, timer_fieldname) \
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from_timer(var, context, timer_fieldname)
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#endif
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#ifndef setup_timer
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#define setup_timer(timer, fn, data) \
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timer_setup(timer, fn, 0)
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#endif
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#if LINUX_VERSION_CODE < KERNEL_VERSION(4,6,0)
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static inline void page_ref_inc(struct page *page)
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{
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atomic_inc(&page->_count);
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}
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static inline void page_ref_dec(struct page *page)
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{
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atomic_dec(&page->_count);
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}
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#endif
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#endif /* LKM_H */
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