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_SERVICE_H_
  #define __OSDEP_SERVICE_H_
  
  
  #define _FAIL		0
  #define _SUCCESS	1
  #define RTW_RX_HANDLED 2
  //#define RTW_STATUS_TIMEDOUT -110
  
  #undef _TRUE
  #define _TRUE		1
  
  #undef _FALSE
  #define _FALSE		0
  
  
  #ifdef PLATFORM_FREEBSD
  #include <osdep_service_bsd.h>
  #endif
  
  #ifdef PLATFORM_LINUX
  #include <osdep_service_linux.h>
  #endif
  
  #ifdef PLATFORM_OS_XP
  #include <osdep_service_xp.h>
  #endif
  
  #ifdef PLATFORM_OS_CE
  #include <osdep_service_ce.h>
  #endif
  
  #define RTW_TIMER_HDL_NAME(name) rtw_##name##_timer_hdl
  #define RTW_DECLARE_TIMER_HDL(name) void RTW_TIMER_HDL_NAME(name)(RTW_TIMER_HDL_ARGS)
  
  //#include <rtw_byteorder.h>
  
  #ifndef BIT
  	#define BIT(x)	( 1 << (x))
  #endif
  
  #define BIT0	0x00000001
  #define BIT1	0x00000002
  #define BIT2	0x00000004
  #define BIT3	0x00000008
  #define BIT4	0x00000010
  #define BIT5	0x00000020
  #define BIT6	0x00000040
  #define BIT7	0x00000080
  #define BIT8	0x00000100
  #define BIT9	0x00000200
  #define BIT10	0x00000400
  #define BIT11	0x00000800
  #define BIT12	0x00001000
  #define BIT13	0x00002000
  #define BIT14	0x00004000
  #define BIT15	0x00008000
  #define BIT16	0x00010000
  #define BIT17	0x00020000
  #define BIT18	0x00040000
  #define BIT19	0x00080000
  #define BIT20	0x00100000
  #define BIT21	0x00200000
  #define BIT22	0x00400000
  #define BIT23	0x00800000
  #define BIT24	0x01000000
  #define BIT25	0x02000000
  #define BIT26	0x04000000
  #define BIT27	0x08000000
  #define BIT28	0x10000000
  #define BIT29	0x20000000
  #define BIT30	0x40000000
  #define BIT31	0x80000000
  #define BIT32	0x0100000000
  #define BIT33	0x0200000000
  #define BIT34	0x0400000000
  #define BIT35	0x0800000000
  #define BIT36	0x1000000000
  
  extern int RTW_STATUS_CODE(int error_code);
  
  #ifndef RTK_DMP_PLATFORM
  #define CONFIG_USE_VMALLOC
  #endif
  
  /* flags used for rtw_mstat_update() */
  enum mstat_f {
  	/* type: 0x00ff */
  	MSTAT_TYPE_VIR = 0x00,
  	MSTAT_TYPE_PHY= 0x01,
  	MSTAT_TYPE_SKB = 0x02,
  	MSTAT_TYPE_USB = 0x03,
  	MSTAT_TYPE_MAX = 0x04,
  
  	/* func: 0xff00 */
  	MSTAT_FUNC_UNSPECIFIED = 0x00<<8,
  	MSTAT_FUNC_IO = 0x01<<8,
  	MSTAT_FUNC_TX_IO = 0x02<<8,
  	MSTAT_FUNC_RX_IO = 0x03<<8,
  	MSTAT_FUNC_TX = 0x04<<8,
  	MSTAT_FUNC_RX = 0x05<<8,
  	MSTAT_FUNC_CFG_VENDOR = 0x06<<8,
  	MSTAT_FUNC_MAX = 0x07<<8,
  };
  
  #define mstat_tf_idx(flags) ((flags)&0xff)
  #define mstat_ff_idx(flags) (((flags)&0xff00) >> 8)
  
  typedef enum mstat_status{
  	MSTAT_ALLOC_SUCCESS = 0,
  	MSTAT_ALLOC_FAIL,
  	MSTAT_FREE
  } MSTAT_STATUS;
  
  #ifdef DBG_MEM_ALLOC
  void rtw_mstat_update(const enum mstat_f flags, const MSTAT_STATUS status, u32 sz);
  void rtw_mstat_dump (void *sel);
  u8* dbg_rtw_vmalloc(u32 sz, const enum mstat_f flags, const char *func, const int line);
  u8* dbg_rtw_zvmalloc(u32 sz, const enum mstat_f flags, const char *func, const int line);
  void dbg_rtw_vmfree(u8 *pbuf, const enum mstat_f flags, u32 sz, const char *func, const int line);
  u8* dbg_rtw_malloc(u32 sz, const enum mstat_f flags, const char *func, const int line);
  u8* dbg_rtw_zmalloc(u32 sz, const enum mstat_f flags, const char *func, const int line);
  void dbg_rtw_mfree(u8 *pbuf, const enum mstat_f flags, u32 sz, const char *func, const int line);
  
  struct sk_buff * dbg_rtw_skb_alloc(unsigned int size, const enum mstat_f flags, const char *func, const int line);
  void dbg_rtw_skb_free(struct sk_buff *skb, const enum mstat_f flags, const char *func, const int line);
  struct sk_buff *dbg_rtw_skb_copy(const struct sk_buff *skb, const enum mstat_f flags, const char *func, const int line);
  struct sk_buff *dbg_rtw_skb_clone(struct sk_buff *skb, const enum mstat_f flags, const char *func, const int line);
  int dbg_rtw_netif_rx(_nic_hdl ndev, struct sk_buff *skb, const enum mstat_f flags, const char *func, int line);
  void dbg_rtw_skb_queue_purge(struct sk_buff_head *list, enum mstat_f flags, const char *func, int line);
  #ifdef CONFIG_USB_HCI
  void *dbg_rtw_usb_buffer_alloc(struct usb_device *dev, size_t size, dma_addr_t *dma, const enum mstat_f flags, const char *func, const int line);
  void dbg_rtw_usb_buffer_free(struct usb_device *dev, size_t size, void *addr, dma_addr_t dma, const enum mstat_f flags, const char *func, const int line);
  #endif /* CONFIG_USB_HCI */
  
  #ifdef CONFIG_USE_VMALLOC
  #define rtw_vmalloc(sz)			dbg_rtw_vmalloc((sz), MSTAT_TYPE_VIR, __FUNCTION__, __LINE__)
  #define rtw_zvmalloc(sz)			dbg_rtw_zvmalloc((sz), MSTAT_TYPE_VIR, __FUNCTION__, __LINE__)
  #define rtw_vmfree(pbuf, sz)		dbg_rtw_vmfree((pbuf), (sz), MSTAT_TYPE_VIR, __FUNCTION__, __LINE__)
  #define rtw_vmalloc_f(sz, mstat_f)			dbg_rtw_vmalloc((sz), ((mstat_f)&0xff00)|MSTAT_TYPE_VIR, __FUNCTION__, __LINE__)
  #define rtw_zvmalloc_f(sz, mstat_f)		dbg_rtw_zvmalloc((sz), ((mstat_f)&0xff00)|MSTAT_TYPE_VIR, __FUNCTION__, __LINE__)
  #define rtw_vmfree_f(pbuf, sz, mstat_f)	dbg_rtw_vmfree((pbuf), (sz), ((mstat_f)&0xff00)|MSTAT_TYPE_VIR, __FUNCTION__, __LINE__)
  #else /* CONFIG_USE_VMALLOC */
  #define rtw_vmalloc(sz)			dbg_rtw_malloc((sz), MSTAT_TYPE_PHY, __FUNCTION__, __LINE__)
  #define rtw_zvmalloc(sz)			dbg_rtw_zmalloc((sz), MSTAT_TYPE_PHY, __FUNCTION__, __LINE__)
  #define rtw_vmfree(pbuf, sz)		dbg_rtw_mfree((pbuf), (sz), MSTAT_TYPE_PHY, __FUNCTION__, __LINE__)
  #define rtw_vmalloc_f(sz, mstat_f)			dbg_rtw_malloc((sz), ((mstat_f)&0xff00)|MSTAT_TYPE_PHY, __FUNCTION__, __LINE__)
  #define rtw_zvmalloc_f(sz, mstat_f)		dbg_rtw_zmalloc((sz), ((mstat_f)&0xff00)|MSTAT_TYPE_PHY, __FUNCTION__, __LINE__)
  #define rtw_vmfree_f(pbuf, sz, mstat_f)	dbg_rtw_mfree((pbuf), (sz), ((mstat_f)&0xff00)|MSTAT_TYPE_PHY, __FUNCTION__, __LINE__)
  #endif /* CONFIG_USE_VMALLOC */
  #define rtw_malloc(sz)			dbg_rtw_malloc((sz), MSTAT_TYPE_PHY, __FUNCTION__, __LINE__)
  #define rtw_zmalloc(sz)			dbg_rtw_zmalloc((sz), MSTAT_TYPE_PHY, __FUNCTION__, __LINE__)
  #define rtw_mfree(pbuf, sz)		dbg_rtw_mfree((pbuf), (sz), MSTAT_TYPE_PHY, __FUNCTION__, __LINE__)
  #define rtw_malloc_f(sz, mstat_f)			dbg_rtw_malloc((sz), ((mstat_f)&0xff00)|MSTAT_TYPE_PHY, __FUNCTION__, __LINE__)
  #define rtw_zmalloc_f(sz, mstat_f)			dbg_rtw_zmalloc((sz), ((mstat_f)&0xff00)|MSTAT_TYPE_PHY, __FUNCTION__, __LINE__)
  #define rtw_mfree_f(pbuf, sz, mstat_f)		dbg_rtw_mfree((pbuf), (sz), ((mstat_f)&0xff00)|MSTAT_TYPE_PHY, __FUNCTION__, __LINE__)
  
  #define rtw_skb_alloc(size)	dbg_rtw_skb_alloc((size), MSTAT_TYPE_SKB, __FUNCTION__, __LINE__)
  #define rtw_skb_free(skb)	dbg_rtw_skb_free((skb), MSTAT_TYPE_SKB, __FUNCTION__, __LINE__)
  #define rtw_skb_alloc_f(size, mstat_f)	dbg_rtw_skb_alloc((size), ((mstat_f)&0xff00)|MSTAT_TYPE_SKB, __FUNCTION__, __LINE__)
  #define rtw_skb_free_f(skb, mstat_f)	dbg_rtw_skb_free((skb), ((mstat_f)&0xff00)|MSTAT_TYPE_SKB, __FUNCTION__, __LINE__)
  #define rtw_skb_copy(skb)	dbg_rtw_skb_copy((skb), MSTAT_TYPE_SKB, __FUNCTION__, __LINE__)
  #define rtw_skb_clone(skb)	dbg_rtw_skb_clone((skb), MSTAT_TYPE_SKB, __FUNCTION__, __LINE__)
  #define rtw_skb_copy_f(skb, mstat_f)	dbg_rtw_skb_copy((skb), ((mstat_f)&0xff00)|MSTAT_TYPE_SKB, __FUNCTION__, __LINE__)
  #define rtw_skb_clone_f(skb, mstat_f)	dbg_rtw_skb_clone((skb), ((mstat_f)&0xff00)|MSTAT_TYPE_SKB, __FUNCTION__, __LINE__)
  #define rtw_netif_rx(ndev, skb)	dbg_rtw_netif_rx(ndev, skb, MSTAT_TYPE_SKB, __FUNCTION__, __LINE__)
  #define rtw_skb_queue_purge(sk_buff_head) dbg_rtw_skb_queue_purge(sk_buff_head, MSTAT_TYPE_SKB, __FUNCTION__, __LINE__)
  #ifdef CONFIG_USB_HCI
  #define rtw_usb_buffer_alloc(dev, size, dma)		dbg_rtw_usb_buffer_alloc((dev), (size), (dma), MSTAT_TYPE_USB, __FUNCTION__, __LINE__)
  #define rtw_usb_buffer_free(dev, size, addr, dma)	dbg_rtw_usb_buffer_free((dev), (size), (addr), (dma), MSTAT_TYPE_USB, __FUNCTION__, __LINE__)
  #define rtw_usb_buffer_alloc_f(dev, size, dma, mstat_f)			dbg_rtw_usb_buffer_alloc((dev), (size), (dma), ((mstat_f)&0xff00)|MSTAT_TYPE_USB, __FUNCTION__, __LINE__)
  #define rtw_usb_buffer_free_f(dev, size, addr, dma, mstat_f)	dbg_rtw_usb_buffer_free((dev), (size), (addr), (dma), ((mstat_f)&0xff00)|MSTAT_TYPE_USB, __FUNCTION__, __LINE__)
  #endif /* CONFIG_USB_HCI */
  
  #else /* DBG_MEM_ALLOC */
  #define rtw_mstat_update(flag, status, sz) do {} while(0)
  #define rtw_mstat_dump(sel) do {} while(0)
  u8*	_rtw_vmalloc(u32 sz);
  u8*	_rtw_zvmalloc(u32 sz);
  void	_rtw_vmfree(u8 *pbuf, u32 sz);
  u8*	_rtw_zmalloc(u32 sz);
  u8*	_rtw_malloc(u32 sz);
  void	_rtw_mfree(u8 *pbuf, u32 sz);
  
  struct sk_buff *_rtw_skb_alloc(u32 sz);
  void _rtw_skb_free(struct sk_buff *skb);
  struct sk_buff *_rtw_skb_copy(const struct sk_buff *skb);
  struct sk_buff *_rtw_skb_clone(struct sk_buff *skb);
  int _rtw_netif_rx(_nic_hdl ndev, struct sk_buff *skb);
  void _rtw_skb_queue_purge(struct sk_buff_head *list);
  
  #ifdef CONFIG_USB_HCI
  void *_rtw_usb_buffer_alloc(struct usb_device *dev, size_t size, dma_addr_t *dma);
  void _rtw_usb_buffer_free(struct usb_device *dev, size_t size, void *addr, dma_addr_t dma);
  #endif /* CONFIG_USB_HCI */
  
  #ifdef CONFIG_USE_VMALLOC
  #define rtw_vmalloc(sz)			_rtw_vmalloc((sz))
  #define rtw_zvmalloc(sz)			_rtw_zvmalloc((sz))
  #define rtw_vmfree(pbuf, sz)		_rtw_vmfree((pbuf), (sz))
  #define rtw_vmalloc_f(sz, mstat_f)			_rtw_vmalloc((sz))
  #define rtw_zvmalloc_f(sz, mstat_f)		_rtw_zvmalloc((sz))
  #define rtw_vmfree_f(pbuf, sz, mstat_f)	_rtw_vmfree((pbuf), (sz))
  #else /* CONFIG_USE_VMALLOC */
  #define rtw_vmalloc(sz)			_rtw_malloc((sz))
  #define rtw_zvmalloc(sz)			_rtw_zmalloc((sz))
  #define rtw_vmfree(pbuf, sz)		_rtw_mfree((pbuf), (sz))
  #define rtw_vmalloc_f(sz, mstat_f)			_rtw_malloc((sz))
  #define rtw_zvmalloc_f(sz, mstat_f)		_rtw_zmalloc((sz))
  #define rtw_vmfree_f(pbuf, sz, mstat_f)	_rtw_mfree((pbuf), (sz))
  #endif /* CONFIG_USE_VMALLOC */
  #define rtw_malloc(sz)			_rtw_malloc((sz))
  #define rtw_zmalloc(sz)			_rtw_zmalloc((sz))
  #define rtw_mfree(pbuf, sz)		_rtw_mfree((pbuf), (sz))
  #define rtw_malloc_f(sz, mstat_f)			_rtw_malloc((sz))
  #define rtw_zmalloc_f(sz, mstat_f)			_rtw_zmalloc((sz))
  #define rtw_mfree_f(pbuf, sz, mstat_f)		_rtw_mfree((pbuf), (sz))
  
  #define rtw_skb_alloc(size) _rtw_skb_alloc((size))
  #define rtw_skb_free(skb) _rtw_skb_free((skb))
  #define rtw_skb_alloc_f(size, mstat_f)	_rtw_skb_alloc((size))
  #define rtw_skb_free_f(skb, mstat_f)	_rtw_skb_free((skb))
  #define rtw_skb_copy(skb)	_rtw_skb_copy((skb))
  #define rtw_skb_clone(skb)	_rtw_skb_clone((skb))
  #define rtw_skb_copy_f(skb, mstat_f)	_rtw_skb_copy((skb))
  #define rtw_skb_clone_f(skb, mstat_f)	_rtw_skb_clone((skb))
  #define rtw_netif_rx(ndev, skb) _rtw_netif_rx(ndev, skb)
  #define rtw_skb_queue_purge(sk_buff_head) _rtw_skb_queue_purge(sk_buff_head)
  #ifdef CONFIG_USB_HCI
  #define rtw_usb_buffer_alloc(dev, size, dma) _rtw_usb_buffer_alloc((dev), (size), (dma))
  #define rtw_usb_buffer_free(dev, size, addr, dma) _rtw_usb_buffer_free((dev), (size), (addr), (dma))
  #define rtw_usb_buffer_alloc_f(dev, size, dma, mstat_f) _rtw_usb_buffer_alloc((dev), (size), (dma))
  #define rtw_usb_buffer_free_f(dev, size, addr, dma, mstat_f) _rtw_usb_buffer_free((dev), (size), (addr), (dma))
  #endif /* CONFIG_USB_HCI */
  #endif /* DBG_MEM_ALLOC */
  
  extern void*	rtw_malloc2d(int h, int w, size_t size);
  extern void	rtw_mfree2d(void *pbuf, int h, int w, int size);
  
  extern void	_rtw_memcpy(void *dec, const void *sour, u32 sz);
  extern int	_rtw_memcmp(void *dst, void *src, u32 sz);
  extern void	_rtw_memset(void *pbuf, int c, u32 sz);
  
  extern void	_rtw_init_listhead(_list *list);
  extern u32	rtw_is_list_empty(_list *phead);
  extern void	rtw_list_insert_head(_list *plist, _list *phead);
  extern void	rtw_list_insert_tail(_list *plist, _list *phead);
  #ifndef PLATFORM_FREEBSD
  extern void	rtw_list_delete(_list *plist);
  #endif //PLATFORM_FREEBSD
  
  extern void	_rtw_init_sema(_sema *sema, int init_val);
  extern void	_rtw_free_sema(_sema	*sema);
  extern void	_rtw_up_sema(_sema	*sema);
  extern u32	_rtw_down_sema(_sema *sema);
  extern void	_rtw_mutex_init(_mutex *pmutex);
  extern void	_rtw_mutex_free(_mutex *pmutex);
  #ifndef PLATFORM_FREEBSD
  extern void	_rtw_spinlock_init(_lock *plock);
  #endif //PLATFORM_FREEBSD
  extern void	_rtw_spinlock_free(_lock *plock);
  extern void	_rtw_spinlock(_lock	*plock);
  extern void	_rtw_spinunlock(_lock	*plock);
  extern void	_rtw_spinlock_ex(_lock	*plock);
  extern void	_rtw_spinunlock_ex(_lock	*plock);
  
  extern void	_rtw_init_queue(_queue	*pqueue);
  extern u32	_rtw_queue_empty(_queue	*pqueue);
  extern u32	rtw_end_of_queue_search(_list *queue, _list *pelement);
  
  extern u32	rtw_get_current_time(void);
  extern u32	rtw_systime_to_ms(u32 systime);
  extern u32	rtw_ms_to_systime(u32 ms);
  extern s32	rtw_get_passing_time_ms(u32 start);
  extern s32	rtw_get_time_interval_ms(u32 start, u32 end);
  
  extern void	rtw_sleep_schedulable(int ms);
  
  extern void	rtw_msleep_os(int ms);
  extern void	rtw_usleep_os(int us);
  
  extern u32 	rtw_atoi(u8* s);
  
  #ifdef DBG_DELAY_OS
  #define rtw_mdelay_os(ms) _rtw_mdelay_os((ms), __FUNCTION__, __LINE__)
  #define rtw_udelay_os(ms) _rtw_udelay_os((ms), __FUNCTION__, __LINE__)
  extern void _rtw_mdelay_os(int ms, const char *func, const int line);
  extern void _rtw_udelay_os(int us, const char *func, const int line);
  #else
  extern void	rtw_mdelay_os(int ms);
  extern void	rtw_udelay_os(int us);
  #endif
  
  extern void rtw_yield_os(void);
  
  
  extern void rtw_init_timer(_timer *ptimer, void *padapter, void *pfunc);
  
  
  __inline static unsigned char _cancel_timer_ex(_timer *ptimer)
  {
  #ifdef PLATFORM_LINUX
  	return del_timer_sync(ptimer);
  #endif
  #ifdef PLATFORM_FREEBSD
  	_cancel_timer(ptimer,0);
  	return 0;
  #endif
  #ifdef PLATFORM_WINDOWS
  	u8 bcancelled;
  	
  	_cancel_timer(ptimer, &bcancelled);
  	
  	return bcancelled;
  #endif
  }
  
  static __inline void thread_enter(char *name)
  {
  #ifdef PLATFORM_LINUX
  	#if (LINUX_VERSION_CODE < KERNEL_VERSION(3, 8, 0))
  	daemonize("%s", name);
  	#endif
  	allow_signal(SIGTERM);
  #endif
  #ifdef PLATFORM_FREEBSD
  	printf("%s", "RTKTHREAD_enter");
  #endif
  }
  
  __inline static void flush_signals_thread(void) 
  {
  #ifdef PLATFORM_LINUX
  	if (signal_pending (current)) 
  	{
  		flush_signals(current);
  	}
  #endif
  }
  
  __inline static _OS_STATUS res_to_status(sint res)
  {
  
  #if defined (PLATFORM_LINUX) || defined (PLATFORM_MPIXEL) || defined (PLATFORM_FREEBSD)
  	return res;
  #endif
  
  #ifdef PLATFORM_WINDOWS
  
  	if (res == _SUCCESS)
  		return NDIS_STATUS_SUCCESS;
  	else
  		return NDIS_STATUS_FAILURE;
  
  #endif	
  	
  }
  
  __inline static void rtw_dump_stack(void)
  {
  #ifdef PLATFORM_LINUX
  	dump_stack();
  #endif
  }
  
  #ifdef PLATFORM_LINUX
  #define rtw_warn_on(condition) WARN_ON(condition)
  #else
  #define rtw_warn_on(condition) do {} while (0)
  #endif
  
  __inline static int rtw_bug_check(void *parg1, void *parg2, void *parg3, void *parg4)
  {
  	int ret = _TRUE;
  
  #ifdef PLATFORM_WINDOWS
  	if ( ((uint)parg1) <= 0x7fffffff || 
  	 	((uint)parg2) <= 0x7fffffff ||
  	 	((uint)parg3) <= 0x7fffffff ||
  	 	((uint)parg4) <= 0x7fffffff)
  	{
  		ret = _FALSE;
  		KeBugCheckEx(0x87110000, (ULONG_PTR)parg1, (ULONG_PTR)parg2, (ULONG_PTR)parg3, (ULONG_PTR)parg4);		
  	}
  #endif
  
  	return ret;
  
  }
  
  #define _RND(sz, r) ((((sz)+((r)-1))/(r))*(r))
  #define RND4(x)	(((x >> 2) + (((x & 3) == 0) ?  0: 1)) << 2)
  
  __inline static u32 _RND4(u32 sz)
  {
  
  	u32	val;
  
  	val = ((sz >> 2) + ((sz & 3) ? 1: 0)) << 2;
  	
  	return val;
  
  }
  
  __inline static u32 _RND8(u32 sz)
  {
  
  	u32	val;
  
  	val = ((sz >> 3) + ((sz & 7) ? 1: 0)) << 3;
  	
  	return val;
  
  }
  
  __inline static u32 _RND128(u32 sz)
  {
  
  	u32	val;
  
  	val = ((sz >> 7) + ((sz & 127) ? 1: 0)) << 7;
  	
  	return val;
  
  }
  
  __inline static u32 _RND256(u32 sz)
  {
  
  	u32	val;
  
  	val = ((sz >> 8) + ((sz & 255) ? 1: 0)) << 8;
  	
  	return val;
  
  }
  
  __inline static u32 _RND512(u32 sz)
  {
  
  	u32	val;
  
  	val = ((sz >> 9) + ((sz & 511) ? 1: 0)) << 9;
  	
  	return val;
  
  }
  
  __inline static u32 bitshift(u32 bitmask)
  {
  	u32 i;
  
  	for (i = 0; i <= 31; i++)
  		if (((bitmask>>i) &  0x1) == 1) break;
  
  	return i;
  }
  
  #define rtw_min(a, b) ((a>b)?b:a)
  
  #ifndef MAC_FMT
  #define MAC_FMT "%02x:%02x:%02x:%02x:%02x:%02x"
  #endif
  #ifndef MAC_ARG
  #define MAC_ARG(x) ((u8*)(x))[0],((u8*)(x))[1],((u8*)(x))[2],((u8*)(x))[3],((u8*)(x))[4],((u8*)(x))[5]
  #endif
  
  
  extern void rtw_suspend_lock_init(void);
  extern void rtw_suspend_lock_uninit(void);
  extern void rtw_lock_suspend(void);
  extern void rtw_unlock_suspend(void);
  extern void rtw_lock_suspend_timeout(u32 timeout_ms);
  extern void rtw_lock_ext_suspend_timeout(u32 timeout_ms);
  extern void rtw_lock_rx_suspend_timeout(u32 timeout_ms);
  extern void rtw_lock_traffic_suspend_timeout(u32 timeout_ms);
  extern void rtw_lock_resume_scan_timeout(u32 timeout_ms);
  extern void rtw_resume_lock_suspend(void);
  extern void rtw_resume_unlock_suspend(void);
  #ifdef CONFIG_AP_WOWLAN
  extern void rtw_softap_lock_suspend(void);
  extern void rtw_softap_unlock_suspend(void);
  #endif
  
  extern void ATOMIC_SET(ATOMIC_T *v, int i);
  extern int ATOMIC_READ(ATOMIC_T *v);
  extern void ATOMIC_ADD(ATOMIC_T *v, int i);
  extern void ATOMIC_SUB(ATOMIC_T *v, int i);
  extern void ATOMIC_INC(ATOMIC_T *v);
  extern void ATOMIC_DEC(ATOMIC_T *v);
  extern int ATOMIC_ADD_RETURN(ATOMIC_T *v, int i);
  extern int ATOMIC_SUB_RETURN(ATOMIC_T *v, int i);
  extern int ATOMIC_INC_RETURN(ATOMIC_T *v);
  extern int ATOMIC_DEC_RETURN(ATOMIC_T *v);
  
  //File operation APIs, just for linux now
  extern int rtw_is_file_readable(char *path);
  extern int rtw_retrive_from_file(char *path, u8* buf, u32 sz);
  extern int rtw_store_to_file(char *path, u8* buf, u32 sz);
  
  
  #ifndef PLATFORM_FREEBSD
  extern void rtw_free_netdev(struct net_device * netdev);
  #endif //PLATFORM_FREEBSD
  
  
  extern u64 rtw_modular64(u64 x, u64 y);
  extern u64 rtw_division64(u64 x, u64 y);
  extern u32 rtw_random32(void);
  
  /* Macros for handling unaligned memory accesses */
  
  #define RTW_GET_BE16(a) ((u16) (((a)[0] << 8) | (a)[1]))
  #define RTW_PUT_BE16(a, val)			\
  	do {					\
  		(a)[0] = ((u16) (val)) >> 8;	\
  		(a)[1] = ((u16) (val)) & 0xff;	\
  	} while (0)
  
  #define RTW_GET_LE16(a) ((u16) (((a)[1] << 8) | (a)[0]))
  #define RTW_PUT_LE16(a, val)			\
  	do {					\
  		(a)[1] = ((u16) (val)) >> 8;	\
  		(a)[0] = ((u16) (val)) & 0xff;	\
  	} while (0)
  
  #define RTW_GET_BE24(a) ((((u32) (a)[0]) << 16) | (((u32) (a)[1]) << 8) | \
  			 ((u32) (a)[2]))			 
  #define RTW_PUT_BE24(a, val)					\
  	do {							\
  		(a)[0] = (u8) ((((u32) (val)) >> 16) & 0xff);	\
  		(a)[1] = (u8) ((((u32) (val)) >> 8) & 0xff);	\
  		(a)[2] = (u8) (((u32) (val)) & 0xff);		\
  	} while (0)
  
  #define RTW_GET_BE32(a) ((((u32) (a)[0]) << 24) | (((u32) (a)[1]) << 16) | \
  			 (((u32) (a)[2]) << 8) | ((u32) (a)[3]))			 
  #define RTW_PUT_BE32(a, val)					\
  	do {							\
  		(a)[0] = (u8) ((((u32) (val)) >> 24) & 0xff);	\
  		(a)[1] = (u8) ((((u32) (val)) >> 16) & 0xff);	\
  		(a)[2] = (u8) ((((u32) (val)) >> 8) & 0xff);	\
  		(a)[3] = (u8) (((u32) (val)) & 0xff);		\
  	} while (0)
  
  #define RTW_GET_LE32(a) ((((u32) (a)[3]) << 24) | (((u32) (a)[2]) << 16) | \
  			 (((u32) (a)[1]) << 8) | ((u32) (a)[0]))			 
  #define RTW_PUT_LE32(a, val)					\
  	do {							\
  		(a)[3] = (u8) ((((u32) (val)) >> 24) & 0xff);	\
  		(a)[2] = (u8) ((((u32) (val)) >> 16) & 0xff);	\
  		(a)[1] = (u8) ((((u32) (val)) >> 8) & 0xff);	\
  		(a)[0] = (u8) (((u32) (val)) & 0xff);		\
  	} while (0)
  
  #define RTW_GET_BE64(a) ((((u64) (a)[0]) << 56) | (((u64) (a)[1]) << 48) | \
  			 (((u64) (a)[2]) << 40) | (((u64) (a)[3]) << 32) | \
  			 (((u64) (a)[4]) << 24) | (((u64) (a)[5]) << 16) | \
  			 (((u64) (a)[6]) << 8) | ((u64) (a)[7]))			 
  #define RTW_PUT_BE64(a, val)				\
  	do {						\
  		(a)[0] = (u8) (((u64) (val)) >> 56);	\
  		(a)[1] = (u8) (((u64) (val)) >> 48);	\
  		(a)[2] = (u8) (((u64) (val)) >> 40);	\
  		(a)[3] = (u8) (((u64) (val)) >> 32);	\
  		(a)[4] = (u8) (((u64) (val)) >> 24);	\
  		(a)[5] = (u8) (((u64) (val)) >> 16);	\
  		(a)[6] = (u8) (((u64) (val)) >> 8);	\
  		(a)[7] = (u8) (((u64) (val)) & 0xff);	\
  	} while (0)
  
  #define RTW_GET_LE64(a) ((((u64) (a)[7]) << 56) | (((u64) (a)[6]) << 48) | \
  			 (((u64) (a)[5]) << 40) | (((u64) (a)[4]) << 32) | \
  			 (((u64) (a)[3]) << 24) | (((u64) (a)[2]) << 16) | \
  			 (((u64) (a)[1]) << 8) | ((u64) (a)[0]))
  
  void rtw_buf_free(u8 **buf, u32 *buf_len);
  void rtw_buf_update(u8 **buf, u32 *buf_len, u8 *src, u32 src_len);
  
  struct rtw_cbuf {
  	u32 write;
  	u32 read;
  	u32 size;
  	void *bufs[0];
  };
  
  bool rtw_cbuf_full(struct rtw_cbuf *cbuf);
  bool rtw_cbuf_empty(struct rtw_cbuf *cbuf);
  bool rtw_cbuf_push(struct rtw_cbuf *cbuf, void *buf);
  void *rtw_cbuf_pop(struct rtw_cbuf *cbuf);
  struct rtw_cbuf *rtw_cbuf_alloc(u32 size);
  void rtw_cbuf_free(struct rtw_cbuf *cbuf);
  
  // String handler
  /*
   * Write formatted output to sized buffer
   */
  #ifdef PLATFORM_LINUX
  #define rtw_sprintf(buf, size, format, arg...)	snprintf(buf, size, format, ##arg)
  #else // !PLATFORM_LINUX
  #error "NOT DEFINE \"rtw_sprintf\"!!"
  #endif // !PLATFORM_LINUX
  
  #endif
  
  
  