ntoskernel.h

ndis在linux下的无线网卡驱动源码

/*
 *  Copyright (C) 2003-2005 Pontus Fuchs, Giridhar Pemmasani
 *
 *  This program is free software; you can redistribute it and/or modify
 *  it under the terms of the GNU General Public License as published by
 *  the Free Software Foundation; either version 2 of the License, or
 *  (at your option) any later version.
 *
 *  This program is distributed in the hope that it will be useful,
 *  but WITHOUT ANY WARRANTY; without even the implied warranty of
 *  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
 *  GNU General Public License for more details.
 *
 */

#ifndef _NTOSKERNEL_H_
#define _NTOSKERNEL_H_

#include <linux/types.h>
#include <linux/timer.h>
#include <linux/time.h>
#include <linux/module.h>
#include <linux/kmod.h>

#include <linux/netdevice.h>
#include <linux/wireless.h>
#include <linux/pci.h>
#include <linux/wait.h>
#include <linux/pm.h>
#include <linux/delay.h>
#include <linux/mm.h>
#include <linux/random.h>
#include <linux/ctype.h>
#include <linux/list.h>
#include <linux/sched.h>
#include <linux/usb.h>
#include <linux/spinlock.h>
#include <asm/mman.h>
#include <linux/version.h>
#include <linux/etherdevice.h>
#include <net/iw_handler.h>
#include <linux/netdevice.h>
#include <linux/ethtool.h>
#include <linux/if_arp.h>
#include <linux/rtnetlink.h>
#include <linux/highmem.h>

#include "winnt_types.h"

#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,7)
#include <linux/kthread.h>
#endif
/* Interrupt backwards compatibility stuff */
#include <linux/interrupt.h>
#ifndef IRQ_HANDLED
#define IRQ_HANDLED
#define IRQ_NONE
#define irqreturn_t void
#endif

/* Workqueue / task queue backwards compatibility stuff */
#if LINUX_VERSION_CODE > KERNEL_VERSION(2,5,41)
#include <linux/workqueue.h>
/* pci functions in 2.6 kernels have problems allocating dma buffers,
 * but seem to work fine with dma functions
 */
#include <asm/dma-mapping.h>

#define PCI_DMA_ALLOC_COHERENT(pci_dev,size,dma_handle)			\
	dma_alloc_coherent(&pci_dev->dev,size,dma_handle,		\
			   GFP_KERNEL | __GFP_REPEAT)
#define PCI_DMA_FREE_COHERENT(pci_dev,size,cpu_addr,dma_handle)		\
	dma_free_coherent(&pci_dev->dev,size,cpu_addr,dma_handle)
#define PCI_DMA_MAP_SINGLE(pci_dev,addr,size,direction)		\
	dma_map_single(&pci_dev->dev,addr,size,direction)
#define PCI_DMA_UNMAP_SINGLE(pci_dev,dma_handle,size,direction)		\
	dma_unmap_single(&pci_dev->dev,dma_handle,size,direction)
#define MAP_SG(pci_dev, sglist, nents, direction)		\
	dma_map_sg(&pci_dev->dev, sglist, nents, direction)
#define UNMAP_SG(pci_dev, sglist, nents, direction)		\
	dma_unmap_sg(&pci_dev->dev, sglist, nents, direction)

#else // linux version <= 2.5.41

#define PCI_DMA_ALLOC_COHERENT(dev,size,dma_handle)	\
	pci_alloc_consistent(dev,size,dma_handle)
#define PCI_DMA_FREE_COHERENT(dev,size,cpu_addr,dma_handle)	\
	pci_free_consistent(dev,size,cpu_addr,dma_handle)
#define PCI_DMA_MAP_SINGLE(dev,addr,size,direction)	\
	pci_map_single(dev,addr,size,direction)
#define PCI_DMA_UNMAP_SINGLE(dev,dma_handle,size,direction)	\
	pci_unmap_single(dev,dma_handle,size,direction)
#define MAP_SG(dev, sglist, nents, direction)		\
	pci_map_sg(dev, sglist, nents, direction)
#define UNMAP_SG(dev, sglist, nents, direction)		\
	pci_unmap_sg(dev, sglist, nents, direction)

#include <linux/smp_lock.h>

/* RedHat kernels define irqs_disabled this way */
#ifndef irqs_disabled
#define irqs_disabled()                \
({                                     \
	unsigned long flags;	       \
       __save_flags(flags);            \
       !(flags & (1<<9));              \
})
#endif

#ifndef in_atomic
#ifdef CONFIG_PREEMPT
#define in_atomic()					\
	((preempt_get_count() & ~PREEMPT_ACTIVE) != 0)
#else
#define in_atomic() (in_interrupt())
#endif // CONFIG_PREEMPT
#endif // in_atomic

#endif // LINUX_VERSION_CODE

/* Wait in wait_state (e.g., TASK_INTERRUPTIBLE) for condition to
 * become true; timeout is either jiffies (> 0) to wait or 0 to wait
 * forever.
 * When timeout == 0, return value is
 *    > 0 if condition becomes true, or
 *    < 0 if signal is pending on the thread.
 * When timeout > 0, return value is
 *    > 0 if condition becomes true before timeout,
 *    < 0 if signal is pending on the thread before timeout, or
 *    0 if timedout (condition may have become true at the same time)
 */

#define wrap_wait_event(condition, timeout, wait_state)		\
({								\
	long ret = timeout ? timeout : 1;			\
	while (!(condition)) {					\
		if (signal_pending(current)) {			\
			ret = -ERESTARTSYS;			\
			break;					\
		}						\
		set_current_state(wait_state);			\
		if (timeout) {					\
			ret = schedule_timeout(ret);		\
			if (!ret)				\
				break;				\
		} else						\
			schedule();				\
	}							\
	current->state = TASK_RUNNING;				\
	ret;							\
})

#ifdef USE_OWN_WQ

typedef struct {
	spinlock_t lock;
	struct task_struct *task;
	struct completion *completion;
	char name[16];
	int pid;
	/* whether any work_structs pending? <0 implies quit */
	int pending;
	/* list of work_structs pending */
	struct list_head work_list;
} workqueue_struct_t;

typedef struct {
	struct list_head list;
	void (*func)(void *data);
	void *data;
	/* whether/on which workqueue scheduled */
	workqueue_struct_t *workq;
} work_struct_t;

#define initialize_work(work, pfunc, pdata)			\
	do {							\
		(work)->func = (pfunc);				\
		(work)->data = (pdata);				\
		(work)->workq = NULL;				\
	} while (0)

#undef create_singlethread_workqueue
#define create_singlethread_workqueue wrap_create_wq
#undef destroy_workqueue
#define destroy_workqueue wrap_destroy_wq
#undef queue_work
#define queue_work wrap_queue_work
#undef flush_workqueue
#define flush_workqueue wrap_flush_wq

workqueue_struct_t *wrap_create_wq(const char *name);
void wrap_destroy_wq(workqueue_struct_t *workq);
void wrap_queue_work(workqueue_struct_t *workq, work_struct_t *work) wfastcall;
void wrap_cancel_work(work_struct_t *work);
void wrap_flush_wq(workqueue_struct_t *workq);
typedef void *worker_param_t;
#define worker_param_data(param, type, member) param

#else // USE_OWN_WQ

typedef struct workqueue_struct workqueue_struct_t;
typedef struct work_struct work_struct_t;

#ifdef INIT_WORK_NAR
#define initialize_work(work, func, data) INIT_WORK(work, func)
typedef struct work_struct *worker_param_t;
#define worker_param_data(param, type, member)	\
	container_of(param, type, member)
#else
#define initialize_work(work, func, data) INIT_WORK(work, func, data)
typedef void *worker_param_t;
#define worker_param_data(param, type, member) param
#endif // INIT_WORK_NAR

#endif // USE_OWN_WQ


#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,9)
#define WRAP_MODULE_PARM_INT(name, perm) module_param(name, int, perm)
#define WRAP_MODULE_PARM_STRING(name, perm) module_param(name, charp, perm)
#else
#define WRAP_MODULE_PARM_INT(name, perm) MODULE_PARM(name, "i")
#define WRAP_MODULE_PARM_STRING(name, perm) MODULE_PARM(name, "s")
#endif

#ifndef LOCK_PREFIX
#ifdef LOCK
#define LOCK_PREFIX LOCK
#else
#ifdef CONFIG_SMP
#define LOCK_PREFIX "lock ; "
#else
#define LOCK_PREFIX ""
#endif
#endif
#endif

#ifndef NETDEV_TX_OK
#define NETDEV_TX_OK 0
#endif

#ifndef NETDEV_TX_BUSY
#define NETDEV_TX_BUSY 1
#endif

#ifndef CHECKSUM_HW
#define CHECKSUM_HW CHECKSUM_PARTIAL
#endif

/* this ugly hack is to handle RH kernels; I don't know any better,
 * but this has to be fixed soon */
#ifndef rt_task
#define rt_task(p) ((p)->prio < MAX_RT_PRIO)
#endif

#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)

#ifndef preempt_enable
#define preempt_enable()  do { } while (0)
#endif
#ifndef preempt_disable
#define preempt_disable() do { } while (0)
#endif

#ifndef preempt_enable_no_resched
#define preempt_enable_no_resched() preempt_enable()
#endif

#ifndef container_of
#define container_of(ptr, type, member)					\
({									\
	const typeof( ((type *)0)->member ) *__mptr = (ptr);		\
	(type *)( (char *)__mptr - offsetof(type,member) );		\
})
#endif

#ifndef virt_addr_valid
#define virt_addr_valid(addr) VALID_PAGE(virt_to_page(addr))
#endif

#ifndef SET_NETDEV_DEV
#define SET_NETDEV_DEV(net,pdev) do { } while (0)
#endif

#define usb_set_intfdata(intf, data) do { } while (0)

#endif // LINUX_VERSION_CODE < KERNEL_VERSION(2,6,0)

#ifndef offset_in_page
#define offset_in_page(p) ((unsigned long)(p) & ~PAGE_MASK)
#endif

#if LINUX_VERSION_CODE >= KERNEL_VERSION(2,4,23)
#define HAVE_ETHTOOL 1
#endif

#ifndef PMSG_SUSPEND
#ifdef PM_SUSPEND
/* this is not correct - the value of PM_SUSPEND is different from
 * PMSG_SUSPEND, but ndiswrapper doesn't care about the value when
 * suspending */
#define PMSG_SUSPEND PM_SUSPEND
#define PSMG_ON PM_ON
#else
typedef u32 pm_message_t;
#define PMSG_SUSPEND 2
#define PMSG_ON 0
#endif
#endif

#ifndef PCI_D0
#define PCI_D0 0
#define PCI_D3hot 3
#endif

#ifndef PM_EVENT_SUSPEND
#define PM_EVENT_SUSPEND 2
#endif

#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,9)
#define pci_choose_state(dev, state) (state)
#endif

#if !defined(HAVE_NETDEV_PRIV)
#define netdev_priv(dev)  ((dev)->priv)
#endif

#if LINUX_VERSION_CODE > KERNEL_VERSION(2,6,18)
#define ISR_PT_REGS_PARAM_DECL
#define ISR_PT_REGS_ARG
#else
#define ISR_PT_REGS_PARAM_DECL , struct pt_regs *regs
#define ISR_PT_REGS_ARG , NULL
#endif

#ifndef flush_icache_range
#define flush_icache_range(start, end) do { } while (0)
#endif

#ifndef CHECKSUM_PARTIAL
#define CHECKSUM_PARTIAL CHECKSUM_HW
#endif

#ifndef IRQF_SHARED
#define IRQF_SHARED SA_SHIRQ
#endif

#define memcpy_skb(skb, from, length)			\
	memcpy(skb_put(skb, length), from, length)

#if LINUX_VERSION_CODE < KERNEL_VERSION(2,6,9)
#define thread_priority(thread) (thread)->nice
#define set_thread_priority(thread, prio) (thread)->nice = (prio)
#else
#define thread_priority(thread) task_nice(thread)
#define set_thread_priority(thread, prio) set_user_nice(thread, prio)