text: /******************************************************************************
   *
   * Copyright(c) 2007 - 2013 Realtek Corporation. All rights reserved.
   *                                        
   * This program is free software; you can redistribute it and/or modify it
   * under the terms of version 2 of the GNU General Public License as
   * published by the Free Software Foundation.
   *
   * 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.
   *
   * You should have received a copy of the GNU General Public License along with
   * this program; if not, write to the Free Software Foundation, Inc.,
   * 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
   *
   *
   ******************************************************************************/
  #ifndef __OSDEP_LINUX_SERVICE_H_
  #define __OSDEP_LINUX_SERVICE_H_
  
  	#include <linux/version.h>
  	#include <linux/spinlock.h>
  	#include <linux/compiler.h>
  	#include <linux/kernel.h>
  	#include <linux/errno.h>
  	#include <linux/init.h>
  	#include <linux/slab.h>
  	#include <linux/module.h>
  #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,5))
  	#include <linux/kref.h>
  #endif
  	//#include <linux/smp_lock.h>
  	#include <linux/netdevice.h>
  	#include <linux/skbuff.h>
  	#include <linux/circ_buf.h>
  	#include <asm/uaccess.h>
  	#include <asm/byteorder.h>
  	#include <asm/atomic.h>
  	#include <asm/io.h>
  #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,26))
  	#include <asm/semaphore.h>
  #else
  	#include <linux/semaphore.h>
  #endif
  	#include <linux/sem.h>
  	#include <linux/sched.h>
  	#include <linux/etherdevice.h>
  	#include <linux/wireless.h>
  	#include <net/iw_handler.h>
  	#include <linux/if_arp.h>
  	#include <linux/rtnetlink.h>
  	#include <linux/delay.h>
  	#include <linux/interrupt.h>	// for struct tasklet_struct
  	#include <linux/ip.h>
  	#include <linux/kthread.h>
  	#include <linux/list.h>
  	#include <linux/vmalloc.h>
  
  #if (LINUX_VERSION_CODE <= KERNEL_VERSION(2,5,41))
  	#include <linux/tqueue.h>
  #endif
  
  #ifdef RTK_DMP_PLATFORM
  #if (LINUX_VERSION_CODE > KERNEL_VERSION(2,6,12))
  	#include <linux/pageremap.h>
  #endif
  	#include <asm/io.h>
  #endif
  
  #ifdef CONFIG_IOCTL_CFG80211	
  //	#include <linux/ieee80211.h>        
          #include <net/ieee80211_radiotap.h>
  	#include <net/cfg80211.h>	
  #endif //CONFIG_IOCTL_CFG80211
  
  #ifdef CONFIG_TCP_CSUM_OFFLOAD_TX
  	#include <linux/in.h>
  	#include <linux/udp.h>
  #endif
  
  #ifdef CONFIG_HAS_EARLYSUSPEND
  	#include <linux/earlysuspend.h>
  #endif //CONFIG_HAS_EARLYSUSPEND
  
  #ifdef CONFIG_EFUSE_CONFIG_FILE
  	#include <linux/fs.h>
  #endif //CONFIG_EFUSE_CONFIG_FILE
  
  #ifdef CONFIG_USB_HCI
  	#include <linux/usb.h>
  #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,21))
  	#include <linux/usb_ch9.h>
  #else
  	#include <linux/usb/ch9.h>
  #endif
  #endif
  
  #ifdef CONFIG_USB_HCI
  	typedef struct urb *  PURB;
  #if (LINUX_VERSION_CODE>=KERNEL_VERSION(2,6,22))
  #ifdef CONFIG_USB_SUSPEND
  #define CONFIG_AUTOSUSPEND	1
  #endif
  #endif
  #endif
  
  	typedef struct 	semaphore _sema;
  	typedef	spinlock_t	_lock;
  #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,37))
  	typedef struct mutex 		_mutex;
  #else
  	typedef struct semaphore	_mutex;
  #endif
  	typedef struct timer_list _timer;
  
  	struct	__queue	{
  		struct	list_head	queue;	
  		_lock	lock;
  	};
  
  	typedef	struct sk_buff	_pkt;
  	typedef unsigned char	_buffer;
  	
  	typedef struct	__queue	_queue;
  	typedef struct	list_head	_list;
  	typedef	int	_OS_STATUS;
  	//typedef u32	_irqL;
  	typedef unsigned long _irqL;
  	typedef	struct	net_device * _nic_hdl;
  	
  	typedef void*		_thread_hdl_;
  	typedef int		thread_return;
  	typedef void*	thread_context;
  
  	#define thread_exit() complete_and_exit(NULL, 0)
  
  	typedef void timer_hdl_return;
  	typedef void* timer_hdl_context;
  
  #if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,41))
  	typedef struct work_struct _workitem;
  #else
  	typedef struct tq_struct _workitem;
  #endif
  
  #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,24))
  	#define DMA_BIT_MASK(n) (((n) == 64) ? ~0ULL : ((1ULL<<(n))-1))
  #endif
  
  #if (LINUX_VERSION_CODE < KERNEL_VERSION(2,6,22))
  // Porting from linux kernel, for compatible with old kernel.
  static inline unsigned char *skb_tail_pointer(const struct sk_buff *skb)
  {
  	return skb->tail;
  }
  
  static inline void skb_reset_tail_pointer(struct sk_buff *skb)
  {
  	skb->tail = skb->data;
  }
  
  static inline void skb_set_tail_pointer(struct sk_buff *skb, const int offset)
  {
  	skb->tail = skb->data + offset;
  }
  
  static inline unsigned char *skb_end_pointer(const struct sk_buff *skb)
  {
  	return skb->end;
  }
  #endif
  
  __inline static _list *get_next(_list	*list)
  {
  	return list->next;
  }	
  
  __inline static _list	*get_list_head(_queue	*queue)
  {
  	return (&(queue->queue));
  }
  
  	
  #define LIST_CONTAINOR(ptr, type, member) \
          ((type *)((char *)(ptr)-(SIZE_T)(&((type *)0)->member)))	
  
          
  __inline static void _enter_critical(_lock *plock, _irqL *pirqL)
  {
  	spin_lock_irqsave(plock, *pirqL);
  }
  
  __inline static void _exit_critical(_lock *plock, _irqL *pirqL)
  {
  	spin_unlock_irqrestore(plock, *pirqL);
  }
  
  __inline static void _enter_critical_ex(_lock *plock, _irqL *pirqL)
  {
  	spin_lock_irqsave(plock, *pirqL);
  }
  
  __inline static void _exit_critical_ex(_lock *plock, _irqL *pirqL)
  {
  	spin_unlock_irqrestore(plock, *pirqL);
  }
  
  __inline static void _enter_critical_bh(_lock *plock, _irqL *pirqL)
  {
  	spin_lock_bh(plock);
  }
  
  __inline static void _exit_critical_bh(_lock *plock, _irqL *pirqL)
  {
  	spin_unlock_bh(plock);
  }
  
  __inline static int _enter_critical_mutex(_mutex *pmutex, _irqL *pirqL)
  {
  	int ret = 0;
  #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,37))
  	//mutex_lock(pmutex);
  	ret = mutex_lock_interruptible(pmutex);
  #else
  	ret = down_interruptible(pmutex);
  #endif
  	return ret;
  }
  
  
  __inline static void _exit_critical_mutex(_mutex *pmutex, _irqL *pirqL)
  {
  #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,37))
  		mutex_unlock(pmutex);
  #else
  		up(pmutex);
  #endif
  }
  
  __inline static void rtw_list_delete(_list *plist)
  {
  	list_del_init(plist);
  }
  
  #define RTW_TIMER_HDL_ARGS void *FunctionContext
  
  __inline static void _init_timer(_timer *ptimer,_nic_hdl nic_hdl,void *pfunc,void* cntx)
  {
  	//setup_timer(ptimer, pfunc,(u32)cntx);	
  	ptimer->function = pfunc;
  	ptimer->data = (unsigned long)cntx;
  	init_timer(ptimer);
  }
  
  __inline static void _set_timer(_timer *ptimer,u32 delay_time)
  {	
  	mod_timer(ptimer , (jiffies+(delay_time*HZ/1000)));	
  }
  
  __inline static void _cancel_timer(_timer *ptimer,u8 *bcancelled)
  {
  	del_timer_sync(ptimer); 	
  	*bcancelled=  _TRUE;//TRUE ==1; FALSE==0
  }
  
  
  __inline static void _init_workitem(_workitem *pwork, void *pfunc, PVOID cntx)
  {
  #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,20))
  	INIT_WORK(pwork, pfunc);
  #elif (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,41))
  	INIT_WORK(pwork, pfunc,pwork);
  #else
  	INIT_TQUEUE(pwork, pfunc,pwork);
  #endif
  }
  
  __inline static void _set_workitem(_workitem *pwork)
  {
  #if (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,41))
  	schedule_work(pwork);
  #else
  	schedule_task(pwork);
  #endif
  }
  
  __inline static void _cancel_workitem_sync(_workitem *pwork)
  {
  #if (LINUX_VERSION_CODE>=KERNEL_VERSION(2,6,22))
  	cancel_work_sync(pwork);
  #elif (LINUX_VERSION_CODE > KERNEL_VERSION(2,5,41))
  	flush_scheduled_work();
  #else
  	flush_scheduled_tasks();
  #endif
  }
  //
  // Global Mutex: can only be used at PASSIVE level.
  //
  
  #define ACQUIRE_GLOBAL_MUTEX(_MutexCounter)                              \
  {                                                               \
  	while (atomic_inc_return((atomic_t *)&(_MutexCounter)) != 1)\
  	{                                                           \
  		atomic_dec((atomic_t *)&(_MutexCounter));        \
  		msleep(10);                          \
  	}                                                           \
  }
  
  #define RELEASE_GLOBAL_MUTEX(_MutexCounter)                              \
  {                                                               \
  	atomic_dec((atomic_t *)&(_MutexCounter));        \
  }
  
  static inline int rtw_netif_queue_stopped(struct net_device *pnetdev)
  {
  #if (LINUX_VERSION_CODE>=KERNEL_VERSION(2,6,35))
  	return (netif_tx_queue_stopped(netdev_get_tx_queue(pnetdev, 0)) &&
  		netif_tx_queue_stopped(netdev_get_tx_queue(pnetdev, 1)) &&
  		netif_tx_queue_stopped(netdev_get_tx_queue(pnetdev, 2)) &&
  		netif_tx_queue_stopped(netdev_get_tx_queue(pnetdev, 3)) );
  #else
  	return netif_queue_stopped(pnetdev);
  #endif
  }
  
  static inline void rtw_netif_wake_queue(struct net_device *pnetdev)
  {
  #if (LINUX_VERSION_CODE>=KERNEL_VERSION(2,6,35))
  	netif_tx_wake_all_queues(pnetdev);
  #else
  	netif_wake_queue(pnetdev);
  #endif
  }
  
  static inline void rtw_netif_start_queue(struct net_device *pnetdev)
  {
  #if (LINUX_VERSION_CODE>=KERNEL_VERSION(2,6,35))
  	netif_tx_start_all_queues(pnetdev);
  #else
  	netif_start_queue(pnetdev);
  #endif
  }
  
  static inline void rtw_netif_stop_queue(struct net_device *pnetdev)
  {
  #if (LINUX_VERSION_CODE>=KERNEL_VERSION(2,6,35))
  	netif_tx_stop_all_queues(pnetdev);
  #else
  	netif_stop_queue(pnetdev);
  #endif
  }
  
  static inline void rtw_merge_string(char *dst, int dst_len, char *src1, char *src2)
  {
  	int	len = 0;
  	len += snprintf(dst+len, dst_len - len, "%s", src1);
  	len += snprintf(dst+len, dst_len - len, "%s", src2);
  }
  
  #if (LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27))
  #define rtw_signal_process(pid, sig) kill_pid(find_vpid((pid)),(sig), 1)
  #else //(LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27))
  #define rtw_signal_process(pid, sig) kill_proc((pid), (sig), 1)
  #endif //(LINUX_VERSION_CODE >= KERNEL_VERSION(2,6,27))
  
  
  // Suspend lock prevent system from going suspend
  #ifdef CONFIG_WAKELOCK
  #include <linux/wakelock.h>
  #elif defined(CONFIG_ANDROID_POWER)
  #include <linux/android_power.h>
  #endif
  
  // limitation of path length
  #define PATH_LENGTH_MAX PATH_MAX
  
  //Atomic integer operations
  #define ATOMIC_T atomic_t
  
  #define rtw_netdev_priv(netdev) ( ((struct rtw_netdev_priv_indicator *)netdev_priv(netdev))->priv )
  
  #define NDEV_FMT "%s"
  #define NDEV_ARG(ndev) ndev->name
  #define ADPT_FMT "%s"
  #define ADPT_ARG(adapter) adapter->pnetdev->name
  #define FUNC_NDEV_FMT "%s(%s)"
  #define FUNC_NDEV_ARG(ndev) __func__, ndev->name
  #define FUNC_ADPT_FMT "%s(%s)"
  #define FUNC_ADPT_ARG(adapter) __func__, adapter->pnetdev->name
  
  struct rtw_netdev_priv_indicator {
  	void *priv;
  	u32 sizeof_priv;
  };
  struct net_device *rtw_alloc_etherdev_with_old_priv(int sizeof_priv, void *old_priv);
  extern struct net_device * rtw_alloc_etherdev(int sizeof_priv);
  
  #define STRUCT_PACKED __attribute__ ((packed))
  
  
  #endif
  
  