/*
 *************************************************************************
 * Ralink Tech Inc.
 * 5F., No.36, Taiyuan St., Jhubei City,
 * Hsinchu County 302,
 * Taiwan, R.O.C.
 *
 * (c) Copyright 2002-2007, Ralink Technology, Inc.
 *
 * 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.                          *
 *                                                                       *
 * 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.,                                       *
 * 59 Temple Place - Suite 330, Boston, MA  02111-1307, USA.             *
 *                                                                       *
 *************************************************************************

    Module Name:
	rt_linux.h

    Abstract:

    Revision History:
    Who          When          What
    ---------    ----------    ----------------------------------------------
*/

#ifndef __RT_LINUX_H__
#define __RT_LINUX_H__

#include <linux/module.h>
#include <linux/kernel.h>
#include <linux/spinlock.h>
#include <linux/init.h>
#include <linux/string.h>
#include <linux/timer.h>
#include <linux/errno.h>
#include <linux/slab.h>
#include <linux/interrupt.h>
#include <linux/pci.h>
#include <linux/netdevice.h>
#include <linux/etherdevice.h>
#include <linux/skbuff.h>
#include <linux/ethtool.h>
#include <linux/wireless.h>
#include <linux/proc_fs.h>
#include <linux/delay.h>
#include <linux/if_arp.h>
#include <linux/ctype.h>
#include <linux/vmalloc.h>

#include <net/iw_handler.h>

/* load firmware */
#define __KERNEL_SYSCALLS__
#include <linux/unistd.h>
#include <asm/uaccess.h>
#include <asm/types.h>
#include <asm/unaligned.h>	/* for get_unaligned() */

#define KTHREAD_SUPPORT 1
/* RT2870 2.1.0.0 has it disabled */

#ifdef KTHREAD_SUPPORT
#include <linux/err.h>
#include <linux/kthread.h>
#endif /* KTHREAD_SUPPORT // */

/***********************************************************************************
 *	Profile related sections
 ***********************************************************************************/

#ifdef RTMP_MAC_PCI
#define STA_DRIVER_VERSION			"2.1.0.0"
#endif /* RTMP_MAC_PCI // */
#ifdef RTMP_MAC_USB
#define STA_DRIVER_VERSION			"2.1.0.0"
/* RT3070 version: 2.1.1.0 */
#endif /* RTMP_MAC_USB // */

extern const struct iw_handler_def rt28xx_iw_handler_def;

/***********************************************************************************
 *	Compiler related definitions
 ***********************************************************************************/
#undef __inline
#define __inline	   static inline
#define IN
#define OUT
#define INOUT

/***********************************************************************************
 *	OS Specific definitions and data structures
 ***********************************************************************************/
typedef int (*HARD_START_XMIT_FUNC) (struct sk_buff * skb,
				     struct net_device * net_dev);

#ifdef RTMP_MAC_PCI
#ifndef PCI_DEVICE
#define PCI_DEVICE(vend,dev) \
	.vendor = (vend), .device = (dev), \
	.subvendor = PCI_ANY_ID, .subdevice = PCI_ANY_ID
#endif /* PCI_DEVICE // */
#endif /* RTMP_MAC_PCI // */

#define RT_MOD_INC_USE_COUNT() \
	if (!try_module_get(THIS_MODULE)) \
	{ \
		DBGPRINT(RT_DEBUG_ERROR, ("%s: cannot reserve module\n", __func__)); \
		return -1; \
	}

#define RT_MOD_DEC_USE_COUNT() module_put(THIS_MODULE);

#define RTMP_INC_REF(_A)		0
#define RTMP_DEC_REF(_A)		0
#define RTMP_GET_REF(_A)		0

/* This function will be called when query /proc */
struct iw_statistics *rt28xx_get_wireless_stats(IN struct net_device *net_dev);

/***********************************************************************************
 *	Network related constant definitions
 ***********************************************************************************/
#ifndef IFNAMSIZ
#define IFNAMSIZ 16
#endif

#define ETH_LENGTH_OF_ADDRESS	6

#define NDIS_STATUS_SUCCESS                     0x00
#define NDIS_STATUS_FAILURE                     0x01
#define NDIS_STATUS_INVALID_DATA				0x02
#define NDIS_STATUS_RESOURCES                   0x03

#define NDIS_SET_PACKET_STATUS(_p, _status)			do{} while(0)
#define NdisWriteErrorLogEntry(_a, _b, _c, _d)		do{} while(0)

/* statistics counter */
#define STATS_INC_RX_PACKETS(_pAd, _dev)
#define STATS_INC_TX_PACKETS(_pAd, _dev)

#define STATS_INC_RX_BYTESS(_pAd, _dev, len)
#define STATS_INC_TX_BYTESS(_pAd, _dev, len)

#define STATS_INC_RX_ERRORS(_pAd, _dev)
#define STATS_INC_TX_ERRORS(_pAd, _dev)

#define STATS_INC_RX_DROPPED(_pAd, _dev)
#define STATS_INC_TX_DROPPED(_pAd, _dev)

/***********************************************************************************
 *	Ralink Specific network related constant definitions
 ***********************************************************************************/
#define MIN_NET_DEVICE_FOR_AID			0x00	/*0x00~0x3f */
#define MIN_NET_DEVICE_FOR_MBSSID		0x00	/*0x00,0x10,0x20,0x30 */
#define MIN_NET_DEVICE_FOR_WDS			0x10	/*0x40,0x50,0x60,0x70 */
#define MIN_NET_DEVICE_FOR_APCLI		0x20
#define MIN_NET_DEVICE_FOR_MESH			0x30
#define MIN_NET_DEVICE_FOR_DLS			0x40
#define NET_DEVICE_REAL_IDX_MASK		0x0f	/* for each operation mode, we maximum support 15 entities. */

#define NDIS_PACKET_TYPE_DIRECTED		0
#define NDIS_PACKET_TYPE_MULTICAST		1
#define NDIS_PACKET_TYPE_BROADCAST		2
#define NDIS_PACKET_TYPE_ALL_MULTICAST	3
#define NDIS_PACKET_TYPE_PROMISCUOUS	4

/***********************************************************************************
 *	OS signaling related constant definitions
 ***********************************************************************************/

/***********************************************************************************
 *	OS file operation related data structure definitions
 ***********************************************************************************/
struct rt_rtmp_os_fs_info {
	int fsuid;
	int fsgid;
	mm_segment_t fs;
};

#define IS_FILE_OPEN_ERR(_fd)	IS_ERR((_fd))

/***********************************************************************************
 *	OS semaphore related data structure and definitions
 ***********************************************************************************/
struct os_lock {
	spinlock_t lock;
	unsigned long flags;
};

/* */
/*  spin_lock enhanced for Nested spin lock */
/* */
#define NdisAllocateSpinLock(__lock)      \
{                                       \
    spin_lock_init((spinlock_t *)(__lock));               \
}

#define NdisFreeSpinLock(lock)          \
	do{}while(0)

#define RTMP_SEM_LOCK(__lock)					\
{												\
	spin_lock_bh((spinlock_t *)(__lock));		\
}

#define RTMP_SEM_UNLOCK(__lock)					\
{												\
	spin_unlock_bh((spinlock_t *)(__lock));		\
}

/* sample, use semaphore lock to replace IRQ lock, 2007/11/15 */
#define RTMP_IRQ_LOCK(__lock, __irqflags)			\
{													\
	__irqflags = 0;									\
	spin_lock_bh((spinlock_t *)(__lock));			\
	pAd->irq_disabled |= 1; \
}

#define RTMP_IRQ_UNLOCK(__lock, __irqflag)			\
{													\
	pAd->irq_disabled &= 0;							\
	spin_unlock_bh((spinlock_t *)(__lock));			\
}

#define RTMP_INT_LOCK(__lock, __irqflags)			\
{													\
	spin_lock_irqsave((spinlock_t *)__lock, __irqflags);	\
}

#define RTMP_INT_UNLOCK(__lock, __irqflag)			\
{													\
	spin_unlock_irqrestore((spinlock_t *)(__lock), ((unsigned long)__irqflag));	\
}

#define NdisAcquireSpinLock		RTMP_SEM_LOCK
#define NdisReleaseSpinLock		RTMP_SEM_UNLOCK

#ifndef wait_event_interruptible_timeout
#define __wait_event_interruptible_timeout(wq, condition, ret) \
do { \
        wait_queue_t __wait; \
        init_waitqueue_entry(&__wait, current); \
        add_wait_queue(&wq, &__wait); \
        for (;;) { \
                set_current_state(TASK_INTERRUPTIBLE); \
                if (condition) \
                        break; \
                if (!signal_pending(current)) { \
                        ret = schedule_timeout(ret); \
                        if (!ret) \
                                break; \
                        continue; \
                } \
                ret = -ERESTARTSYS; \
                break; \
        } \
        current->state = TASK_RUNNING; \
        remove_wait_queue(&wq, &__wait); \
} while (0)

#define wait_event_interruptible_timeout(wq, condition, timeout) \
({ \
        long __ret = timeout; \
        if (!(condition)) \
                __wait_event_interruptible_timeout(wq, condition, __ret); \
        __ret; \
})
#endif

#define RTMP_SEM_EVENT_INIT_LOCKED(_pSema)	sema_init((_pSema), 0)
#define RTMP_SEM_EVENT_INIT(_pSema)			sema_init((_pSema), 1)
#define RTMP_SEM_EVENT_WAIT(_pSema, _status)	((_status) = down_interruptible((_pSema)))
#define RTMP_SEM_EVENT_UP(_pSema)			up(_pSema)

#ifdef KTHREAD_SUPPORT
#define RTMP_WAIT_EVENT_INTERRUPTIBLE(_pAd, _pTask) \
{ \
		wait_event_interruptible(_pTask->kthread_q, \
								 _pTask->kthread_running || kthread_should_stop()); \
		_pTask->kthread_running = FALSE; \
		if (kthread_should_stop()) \
		{ \
			RTMP_SET_FLAG(_pAd, fRTMP_ADAPTER_HALT_IN_PROGRESS); \
			break; \
		} \
}
#endif

#ifdef KTHREAD_SUPPORT
#define WAKE_UP(_pTask) \
	do{ \
		if ((_pTask)->kthread_task) \
        { \
			(_pTask)->kthread_running = TRUE; \
	        wake_up(&(_pTask)->kthread_q); \
		} \
	}while(0)
#endif

/***********************************************************************************
 *	OS Memory Access related data structure and definitions
 ***********************************************************************************/
#define MEM_ALLOC_FLAG      (GFP_ATOMIC)	/*(GFP_DMA | GFP_ATOMIC) */

#define NdisMoveMemory(Destination, Source, Length) memmove(Destination, Source, Length)
#define NdisCopyMemory(Destination, Source, Length) memcpy(Destination, Source, Length)
#define NdisZeroMemory(Destination, Length)         memset(Destination, 0, Length)
#define NdisFillMemory(Destination, Length, Fill)   memset(Destination, Fill, Length)
#define NdisCmpMemory(Destination, Source, Length)  memcmp(Destination, Source, Length)
#define NdisEqualMemory(Source1, Source2, Length)   (!memcmp(Source1, Source2, Length))
#define RTMPEqualMemory(Source1, Source2, Length)	(!memcmp(Source1, Source2, Length))

#define MlmeAllocateMemory(_pAd, _ppVA)		os_alloc_mem(_pAd, _ppVA, MGMT_DMA_BUFFER_SIZE)
#define MlmeFreeMemory(_pAd, _pVA)			os_free_mem(_pAd, _pVA)

#define COPY_MAC_ADDR(Addr1, Addr2)             memcpy((Addr1), (Addr2), MAC_ADDR_LEN)

/***********************************************************************************
 *	OS task related data structure and definitions
 ***********************************************************************************/
#define RTMP_OS_MGMT_TASK_FLAGS	CLONE_VM

#define	THREAD_PID_INIT_VALUE	NULL
#define	GET_PID(_v)	find_get_pid((_v))
#define	GET_PID_NUMBER(_v)	pid_nr((_v))
#define CHECK_PID_LEGALITY(_pid)	if (pid_nr((_pid)) > 0)
#define KILL_THREAD_PID(_A, _B, _C)	kill_pid((_A), (_B), (_C))

/***********************************************************************************
 * Timer related definitions and data structures.
 **********************************************************************************/
#define OS_HZ			HZ

typedef void (*TIMER_FUNCTION) (unsigned long);

#define OS_WAIT(_time) \
{	int _i; \
	long _loop = ((_time)/(1000/OS_HZ)) > 0 ? ((_time)/(1000/OS_HZ)) : 1;\
	wait_queue_head_t _wait; \
	init_waitqueue_head(&_wait); \
	for (_i=0; _i<(_loop); _i++) \
		wait_event_interruptible_timeout(_wait, 0, ONE_TICK); }

#define RTMP_TIME_AFTER(a,b)		\
	(typecheck(unsigned long, (unsigned long)a) && \
	 typecheck(unsigned long, (unsigned long)b) && \
	 ((long)(b) - (long)(a) < 0))

#define RTMP_TIME_AFTER_EQ(a,b)	\
	(typecheck(unsigned long, (unsigned long)a) && \
	 typecheck(unsigned long, (unsigned long)b) && \
	 ((long)(a) - (long)(b) >= 0))
#define RTMP_TIME_BEFORE(a,b)	RTMP_TIME_AFTER_EQ(b,a)

#define ONE_TICK 1

static inline void NdisGetSystemUpTime(unsigned long * time)
{
	*time = jiffies;
}

/***********************************************************************************
 *	OS specific cookie data structure binding to struct rt_rtmp_adapter
 ***********************************************************************************/

struct os_cookie {
#ifdef RTMP_MAC_PCI
	struct pci_dev *pci_dev;
	struct pci_dev *parent_pci_dev;
	u16 DeviceID;
	dma_addr_t pAd_pa;
#endif				/* RTMP_MAC_PCI // */
#ifdef RTMP_MAC_USB
	struct usb_device *pUsb_Dev;
#endif				/* RTMP_MAC_USB // */

	struct tasklet_struct rx_done_task;
	struct tasklet_struct mgmt_dma_done_task;
	struct tasklet_struct ac0_dma_done_task;
	struct tasklet_struct ac1_dma_done_task;
	struct tasklet_struct ac2_dma_done_task;
	struct tasklet_struct ac3_dma_done_task;
	struct tasklet_struct tbtt_task;
#ifdef RTMP_MAC_PCI
	struct tasklet_struct fifo_statistic_full_task;
#endif				/* RTMP_MAC_PCI // */
#ifdef RTMP_MAC_USB
	struct tasklet_struct null_frame_complete_task;
	struct tasklet_struct rts_frame_complete_task;
	struct tasklet_struct pspoll_frame_complete_task;
#endif				/* RTMP_MAC_USB // */

	unsigned long apd_pid;	/*802.1x daemon pid */
	int ioctl_if_type;
	int ioctl_if;
};

/***********************************************************************************
 *	OS debugging and printing related definitions and data structure
 ***********************************************************************************/
#define PRINT_MAC(addr)	\
	addr[0], addr[1], addr[2], addr[3], addr[4], addr[5]

#ifdef DBG
extern unsigned long RTDebugLevel;

#define DBGPRINT_RAW(Level, Fmt)    \
do{                                   \
    if (Level <= RTDebugLevel)      \
    {                               \
        printk Fmt;               \
    }                               \
}while(0)

#define DBGPRINT(Level, Fmt)    DBGPRINT_RAW(Level, Fmt)

#define DBGPRINT_ERR(Fmt)           \
{                                   \
    printk("ERROR! ");          \
    printk Fmt;                  \
}

#define DBGPRINT_S(Status, Fmt)		\
{									\
	printk Fmt;					\
}

#else
#define DBGPRINT(Level, Fmt)
#define DBGPRINT_RAW(Level, Fmt)
#define DBGPRINT_S(Status, Fmt)
#define DBGPRINT_ERR(Fmt)
#endif

#define ASSERT(x)

void hex_dump(char *str, unsigned char *pSrcBufVA, unsigned int SrcBufLen);

/*********************************************************************************************************
	The following code are not revised, temporary put it here.
  *********************************************************************************************************/

/***********************************************************************************
 * Device DMA Access related definitions and data structures.
 **********************************************************************************/
#ifdef RTMP_MAC_PCI
struct rt_rtmp_adapter;
dma_addr_t linux_pci_map_single(struct rt_rtmp_adapter *pAd, void *ptr,
				size_t size, int sd_idx, int direction);
void linux_pci_unmap_single(struct rt_rtmp_adapter *pAd, dma_addr_t dma_addr,
			    size_t size, int direction);

#define PCI_MAP_SINGLE(_handle, _ptr, _size, _sd_idx, _dir) \
	linux_pci_map_single(_handle, _ptr, _size, _sd_idx, _dir)

#define PCI_UNMAP_SINGLE(_handle, _ptr, _size, _dir) \
	linux_pci_unmap_single(_handle, _ptr, _size, _dir)

#define PCI_ALLOC_CONSISTENT(_pci_dev, _size, _ptr) \
	pci_alloc_consistent(_pci_dev, _size, _ptr)

#define PCI_FREE_CONSISTENT(_pci_dev, _size, _virtual_addr, _physical_addr) \
	pci_free_consistent(_pci_dev, _size, _virtual_addr, _physical_addr)

#define DEV_ALLOC_SKB(_length) \
	dev_alloc_skb(_length)
#endif /* RTMP_MAC_PCI // */

/*
 * unsigned long
 * RTMP_GetPhysicalAddressLow(
 *   dma_addr_t  PhysicalAddress);
 */
#define RTMP_GetPhysicalAddressLow(PhysicalAddress)		(PhysicalAddress)

/*
 * unsigned long
 * RTMP_GetPhysicalAddressHigh(
 *   dma_addr_t  PhysicalAddress);
 */
#define RTMP_GetPhysicalAddressHigh(PhysicalAddress)		(0)

/*
 * void
 * RTMP_SetPhysicalAddressLow(
 *   dma_addr_t  PhysicalAddress,
 *   unsigned long  Value);
 */
#define RTMP_SetPhysicalAddressLow(PhysicalAddress, Value)	\
			PhysicalAddress = Value;

/*
 * void
 * RTMP_SetPhysicalAddressHigh(
 *   dma_addr_t  PhysicalAddress,
 *   unsigned long  Value);
 */
#define RTMP_SetPhysicalAddressHigh(PhysicalAddress, Value)

#define NdisMIndicateStatus(_w, _x, _y, _z)

/***********************************************************************************
 * Device Register I/O Access related definitions and data structures.
 **********************************************************************************/
#ifdef RTMP_MAC_PCI
/*Patch for ASIC turst read/write bug, needs to remove after metel fix */
#define RTMP_IO_READ32(_A, _R, _pV)								\
{																\
    if ((_A)->bPCIclkOff == FALSE)                                  \
    {                                                               \
		(*_pV = readl((void *)((_A)->CSRBaseAddress + MAC_CSR0)));		\
		(*_pV = readl((void *)((_A)->CSRBaseAddress + (_R))));			\
    }                                                               \
    else															\
		*_pV = 0;													\
}

#define RTMP_IO_FORCE_READ32(_A, _R, _pV)							\
{																	\
	(*_pV = readl((void *)((_A)->CSRBaseAddress + MAC_CSR0)));		\
	(*_pV = readl((void *)((_A)->CSRBaseAddress + (_R))));			\
}

#define RTMP_IO_READ8(_A, _R, _pV)								\
{																\
	(*_pV = readl((void *)((_A)->CSRBaseAddress + MAC_CSR0)));			\
	(*_pV = readb((void *)((_A)->CSRBaseAddress + (_R))));				\
}
#define RTMP_IO_WRITE32(_A, _R, _V)												\
{																				\
    if ((_A)->bPCIclkOff == FALSE)                                  \
    {                                                               \
	u32 Val;																\
	Val = readl((void *)((_A)->CSRBaseAddress + MAC_CSR0));			\
	writel((_V), (void *)((_A)->CSRBaseAddress + (_R)));								\
    }                                                               \
}

#define RTMP_IO_FORCE_WRITE32(_A, _R, _V)												\
{																				\
	u32 Val;																\
	Val = readl((void *)((_A)->CSRBaseAddress + MAC_CSR0));			\
	writel(_V, (void *)((_A)->CSRBaseAddress + (_R)));								\
}

#if defined(RALINK_2880) || defined(RALINK_3052)
#define RTMP_IO_WRITE8(_A, _R, _V)            \
{                    \
	unsigned long Val;                \
	u8 _i;                \
	_i = ((_R) & 0x3);             \
	Val = readl((void *)((_A)->CSRBaseAddress + ((_R) - _i)));   \
	Val = Val & (~(0x000000ff << ((_i)*8)));         \
	Val = Val | ((unsigned long)(_V) << ((_i)*8));         \
	writel((Val), (void *)((_A)->CSRBaseAddress + ((_R) - _i)));    \
}
#else
#define RTMP_IO_WRITE8(_A, _R, _V)												\
{																				\
	u32 Val;																\
	Val = readl((void *)((_A)->CSRBaseAddress + MAC_CSR0));			\
	writeb((_V), (u8 *)((_A)->CSRBaseAddress + (_R)));		\
}
#endif /* #if defined(BRCM_6358) || defined(RALINK_2880) // */

#define RTMP_IO_WRITE16(_A, _R, _V)												\
{																				\
	u32 Val;																\
	Val = readl((void *)((_A)->CSRBaseAddress + MAC_CSR0));			\
	writew((_V), (u16 *)((_A)->CSRBaseAddress + (_R)));	\
}
#endif /* RTMP_MAC_PCI // */
#ifdef RTMP_MAC_USB
/*Patch for ASIC turst read/write bug, needs to remove after metel fix */
#define RTMP_IO_READ32(_A, _R, _pV)								\
	RTUSBReadMACRegister((_A), (_R), (u32 *)(_pV))

#define RTMP_IO_READ8(_A, _R, _pV)								\
{																\
}

#define RTMP_IO_WRITE32(_A, _R, _V)								\
	RTUSBWriteMACRegister((_A), (_R), (u32)(_V))

#define RTMP_IO_WRITE8(_A, _R, _V)								\
{																\
	u16	_Val = _V;											\
	RTUSBSingleWrite((_A), (_R), (u16)(_Val));								\
}

#define RTMP_IO_WRITE16(_A, _R, _V)								\
{																\
	RTUSBSingleWrite((_A), (_R), (u16)(_V));								\
}
#endif /* RTMP_MAC_USB // */

/***********************************************************************************
 *	Network Related data structure and marco definitions
 ***********************************************************************************/
#define PKTSRC_NDIS             0x7f
#define PKTSRC_DRIVER           0x0f

#define RTMP_OS_NETDEV_SET_PRIV(_pNetDev, _pPriv)	((_pNetDev)->ml_priv = (_pPriv))
#define RTMP_OS_NETDEV_GET_PRIV(_pNetDev)		((_pNetDev)->ml_priv)
#define RTMP_OS_NETDEV_GET_DEVNAME(_pNetDev)	((_pNetDev)->name)
#define RTMP_OS_NETDEV_GET_PHYADDR(_PNETDEV)	((_PNETDEV)->dev_addr)

#define RTMP_OS_NETDEV_START_QUEUE(_pNetDev)	netif_start_queue((_pNetDev))
#define RTMP_OS_NETDEV_STOP_QUEUE(_pNetDev)	netif_stop_queue((_pNetDev))
#define RTMP_OS_NETDEV_WAKE_QUEUE(_pNetDev)	netif_wake_queue((_pNetDev))
#define RTMP_OS_NETDEV_CARRIER_OFF(_pNetDev)	netif_carrier_off((_pNetDev))

#define QUEUE_ENTRY_TO_PACKET(pEntry) \
	(void *)(pEntry)

#define PACKET_TO_QUEUE_ENTRY(pPacket) \
	(struct rt_queue_entry *)(pPacket)

#define GET_SG_LIST_FROM_PACKET(_p, _sc)	\
    rt_get_sg_list_from_packet(_p, _sc)

#define RELEASE_NDIS_PACKET(_pAd, _pPacket, _Status)                    \
{                                                                       \
        RTMPFreeNdisPacket(_pAd, _pPacket);                             \
}

/*
 * packet helper
 * 	- convert internal rt packet to os packet or
 *             os packet to rt packet
 */
#define RTPKT_TO_OSPKT(_p)		((struct sk_buff *)(_p))
#define OSPKT_TO_RTPKT(_p)		((void *)(_p))

#define GET_OS_PKT_DATAPTR(_pkt) \
		(RTPKT_TO_OSPKT(_pkt)->data)
#define SET_OS_PKT_DATAPTR(_pkt, _dataPtr)	\
		(RTPKT_TO_OSPKT(_pkt)->data) = (_dataPtr)

#define GET_OS_PKT_LEN(_pkt) \
		(RTPKT_TO_OSPKT(_pkt)->len)
#define SET_OS_PKT_LEN(_pkt, _len)	\
		(RTPKT_TO_OSPKT(_pkt)->len) = (_len)

#define GET_OS_PKT_DATATAIL(_pkt) \
		(skb_tail_pointer(RTPKT_TO_OSPKT(_pkt))
#define SET_OS_PKT_DATATAIL(_pkt, _start, _len)	\
		(skb_set_tail_pointer(RTPKT_TO_OSPKT(_pkt), _len))

#define GET_OS_PKT_HEAD(_pkt) \
		(RTPKT_TO_OSPKT(_pkt)->head)

#define GET_OS_PKT_END(_pkt) \
		(RTPKT_TO_OSPKT(_pkt)->end)

#define GET_OS_PKT_NETDEV(_pkt) \
		(RTPKT_TO_OSPKT(_pkt)->dev)
#define SET_OS_PKT_NETDEV(_pkt, _pNetDev)	\
		(RTPKT_TO_OSPKT(_pkt)->dev) = (_pNetDev)

#define GET_OS_PKT_TYPE(_pkt) \
		(RTPKT_TO_OSPKT(_pkt))

#define GET_OS_PKT_NEXT(_pkt) \
		(RTPKT_TO_OSPKT(_pkt)->next)

#define OS_PKT_CLONED(_pkt)		skb_cloned(RTPKT_TO_OSPKT(_pkt))

#define OS_NTOHS(_Val) \
		(ntohs(_Val))
#define OS_HTONS(_Val) \
		(htons(_Val))
#define OS_NTOHL(_Val) \
		(ntohl(_Val))
#define OS_HTONL(_Val) \
		(htonl(_Val))

#define CB_OFF  10

/* User Priority */
#define RTMP_SET_PACKET_UP(_p, _prio)			(RTPKT_TO_OSPKT(_p)->cb[CB_OFF+0] = _prio)
#define RTMP_GET_PACKET_UP(_p)					(RTPKT_TO_OSPKT(_p)->cb[CB_OFF+0])

/* Fragment # */
#define RTMP_SET_PACKET_FRAGMENTS(_p, _num)		(RTPKT_TO_OSPKT(_p)->cb[CB_OFF+1] = _num)
#define RTMP_GET_PACKET_FRAGMENTS(_p)			(RTPKT_TO_OSPKT(_p)->cb[CB_OFF+1])

/* 0x0 ~0x7f: TX to AP's own BSS which has the specified AID. if AID>127, set bit 7 in RTMP_SET_PACKET_EMACTAB too. */
/*(this value also as MAC(on-chip WCID) table index) */
/* 0x80~0xff: TX to a WDS link. b0~6: WDS index */
#define RTMP_SET_PACKET_WCID(_p, _wdsidx)		(RTPKT_TO_OSPKT(_p)->cb[CB_OFF+2] = _wdsidx)
#define RTMP_GET_PACKET_WCID(_p)          		((u8)(RTPKT_TO_OSPKT(_p)->cb[CB_OFF+2]))

/* 0xff: PKTSRC_NDIS, others: local TX buffer index. This value affects how to a packet */
#define RTMP_SET_PACKET_SOURCE(_p, _pktsrc)		(RTPKT_TO_OSPKT(_p)->cb[CB_OFF+3] = _pktsrc)
#define RTMP_GET_PACKET_SOURCE(_p)       		(RTPKT_TO_OSPKT(_p)->cb[CB_OFF+3])

/* RTS/CTS-to-self protection method */
#define RTMP_SET_PACKET_RTS(_p, _num)      		(RTPKT_TO_OSPKT(_p)->cb[CB_OFF+4] = _num)
#define RTMP_GET_PACKET_RTS(_p)          		(RTPKT_TO_OSPKT(_p)->cb[CB_OFF+4])
/* see RTMP_S(G)ET_PACKET_EMACTAB */

/* TX rate index */
#define RTMP_SET_PACKET_TXRATE(_p, _rate)		(RTPKT_TO_OSPKT(_p)->cb[CB_OFF+5] = _rate)
#define RTMP_GET_PACKET_TXRATE(_p)		  		(RTPKT_TO_OSPKT(_p)->cb[CB_OFF+5])

/* From which Interface */
#define RTMP_SET_PACKET_IF(_p, _ifdx)		(RTPKT_TO_OSPKT(_p)->cb[CB_OFF+6] = _ifdx)
#define RTMP_GET_PACKET_IF(_p)		  		(RTPKT_TO_OSPKT(_p)->cb[CB_OFF+6])
#define RTMP_SET_PACKET_NET_DEVICE_MBSSID(_p, _bss)		RTMP_SET_PACKET_IF((_p), (_bss))
#define RTMP_SET_PACKET_NET_DEVICE_WDS(_p, _bss)		RTMP_SET_PACKET_IF((_p), ((_bss) + MIN_NET_DEVICE_FOR_WDS))
#define RTMP_SET_PACKET_NET_DEVICE_APCLI(_p, _idx)   	RTMP_SET_PACKET_IF((_p), ((_idx) + MIN_NET_DEVICE_FOR_APCLI))
#define RTMP_SET_PACKET_NET_DEVICE_MESH(_p, _idx)   	RTMP_SET_PACKET_IF((_p), ((_idx) + MIN_NET_DEVICE_FOR_MESH))
#define RTMP_GET_PACKET_NET_DEVICE_MBSSID(_p)			RTMP_GET_PACKET_IF((_p))
#define RTMP_GET_PACKET_NET_DEVICE(_p)					RTMP_GET_PACKET_IF((_p))

#define RTMP_SET_PACKET_MOREDATA(_p, _morebit)		(RTPKT_TO_OSPKT(_p)->cb[CB_OFF+7] = _morebit)
#define RTMP_GET_PACKET_MOREDATA(_p)				(RTPKT_TO_OSPKT(_p)->cb[CB_OFF+7])

/* */
/*      Sepcific Pakcet Type definition */
/* */
#define RTMP_PACKET_SPECIFIC_CB_OFFSET	11

#define RTMP_PACKET_SPECIFIC_DHCP		0x01
#define RTMP_PACKET_SPECIFIC_EAPOL		0x02
#define RTMP_PACKET_SPECIFIC_IPV4		0x04
#define RTMP_PACKET_SPECIFIC_WAI		0x08
#define RTMP_PACKET_SPECIFIC_VLAN		0x10
#define RTMP_PACKET_SPECIFIC_LLCSNAP	0x20

/*Specific */
#define RTMP_SET_PACKET_SPECIFIC(_p, _flg)	   	(RTPKT_TO_OSPKT(_p)->cb[CB_OFF+11] = _flg)

/*DHCP */
#define RTMP_SET_PACKET_DHCP(_p, _flg)   													\
			do{																				\
				if (_flg)																	\
					(RTPKT_TO_OSPKT(_p)->cb[CB_OFF+11]) |= (RTMP_PACKET_SPECIFIC_DHCP);		\
				else																		\
					(RTPKT_TO_OSPKT(_p)->cb[CB_OFF+11]) &= (!RTMP_PACKET_SPECIFIC_DHCP);	\
			}while(0)
#define RTMP_GET_PACKET_DHCP(_p)		(RTPKT_TO_OSPKT(_p)->cb[CB_OFF+11] & RTMP_PACKET_SPECIFIC_DHCP)

/*EAPOL */
#define RTMP_SET_PACKET_EAPOL(_p, _flg)   													\
			do{																				\
				if (_flg)																	\
					(RTPKT_TO_OSPKT(_p)->cb[CB_OFF+11]) |= (RTMP_PACKET_SPECIFIC_EAPOL);		\
				else																		\
					(RTPKT_TO_OSPKT(_p)->cb[CB_OFF+11]) &= (!RTMP_PACKET_SPECIFIC_EAPOL);	\
			}while(0)
#define RTMP_GET_PACKET_EAPOL(_p)		(RTPKT_TO_OSPKT(_p)->cb[CB_OFF+11] & RTMP_PACKET_SPECIFIC_EAPOL)

/*WAI */
#define RTMP_SET_PACKET_WAI(_p, _flg)   													\
			do{																				\
				if (_flg)																	\
					(RTPKT_TO_OSPKT(_p)->cb[CB_OFF+11]) |= (RTMP_PACKET_SPECIFIC_WAI);		\
				else																		\
					(RTPKT_TO_OSPKT(_p)->cb[CB_OFF+11]) &= (!RTMP_PACKET_SPECIFIC_WAI);	\
			}while(0)
#define RTMP_GET_PACKET_WAI(_p)		(RTPKT_TO_OSPKT(_p)->cb[CB_OFF+11] & RTMP_PACKET_SPECIFIC_WAI)

#define RTMP_GET_PACKET_LOWRATE(_p)		(RTPKT_TO_OSPKT(_p)->cb[CB_OFF+11] & (RTMP_PACKET_SPECIFIC_EAPOL | RTMP_PACKET_SPECIFIC_DHCP | RTMP_PACKET_SPECIFIC_WAI))

/*VLAN */
#define RTMP_SET_PACKET_VLAN(_p, _flg)   													\
			do{																				\
				if (_flg)																	\
					(RTPKT_TO_OSPKT(_p)->cb[CB_OFF+11]) |= (RTMP_PACKET_SPECIFIC_VLAN);		\
				else																		\
					(RTPKT_TO_OSPKT(_p)->cb[CB_OFF+11]) &= (!RTMP_PACKET_SPECIFIC_VLAN);	\
			}while(0)
#define RTMP_GET_PACKET_VLAN(_p)		(RTPKT_TO_OSPKT(_p)->cb[CB_OFF+11] & RTMP_PACKET_SPECIFIC_VLAN)

/*LLC/SNAP */
#define RTMP_SET_PACKET_LLCSNAP(_p, _flg)   													\
			do{																				\
				if (_flg)																	\
					(RTPKT_TO_OSPKT(_p)->cb[CB_OFF+11]) |= (RTMP_PACKET_SPECIFIC_LLCSNAP);		\
				else																		\
					(RTPKT_TO_OSPKT(_p)->cb[CB_OFF+11]) &= (!RTMP_PACKET_SPECIFIC_LLCSNAP);		\
			}while(0)

#define RTMP_GET_PACKET_LLCSNAP(_p)		(RTPKT_TO_OSPKT(_p)->cb[CB_OFF+11] & RTMP_PACKET_SPECIFIC_LLCSNAP)

/* IP */
#define RTMP_SET_PACKET_IPV4(_p, _flg)														\
			do{																				\
				if (_flg)																	\
					(RTPKT_TO_OSPKT(_p)->cb[CB_OFF+11]) |= (RTMP_PACKET_SPECIFIC_IPV4);		\
				else																		\
					(RTPKT_TO_OSPKT(_p)->cb[CB_OFF+11]) &= (!RTMP_PACKET_SPECIFIC_IPV4);	\
			}while(0)

#define RTMP_GET_PACKET_IPV4(_p)		(RTPKT_TO_OSPKT(_p)->cb[CB_OFF+11] & RTMP_PACKET_SPECIFIC_IPV4)

/* If this flag is set, it indicates that this EAPoL frame MUST be clear. */
#define RTMP_SET_PACKET_CLEAR_EAP_FRAME(_p, _flg)   (RTPKT_TO_OSPKT(_p)->cb[CB_OFF+12] = _flg)
#define RTMP_GET_PACKET_CLEAR_EAP_FRAME(_p)         (RTPKT_TO_OSPKT(_p)->cb[CB_OFF+12])

/* use bit3 of cb[CB_OFF+16] */

#define RTMP_SET_PACKET_5VT(_p, _flg)   (RTPKT_TO_OSPKT(_p)->cb[CB_OFF+22] = _flg)
#define RTMP_GET_PACKET_5VT(_p)         (RTPKT_TO_OSPKT(_p)->cb[CB_OFF+22])

/* Max skb->cb = 48B = [CB_OFF+38] */

/***********************************************************************************
 *	Other function prototypes definitions
 ***********************************************************************************/
void RTMP_GetCurrentSystemTime(LARGE_INTEGER * time);
int rt28xx_packet_xmit(struct sk_buff *skb);

#ifdef RTMP_MAC_PCI
/* function declarations */
#define IRQ_HANDLE_TYPE  irqreturn_t

IRQ_HANDLE_TYPE rt2860_interrupt(int irq, void *dev_instance);
#endif /* RTMP_MAC_PCI // */

int rt28xx_sta_ioctl(struct net_device *net_dev, IN OUT struct ifreq *rq, int cmd);

extern int ra_mtd_write(int num, loff_t to, size_t len, const u_char * buf);
extern int ra_mtd_read(int num, loff_t from, size_t len, u_char * buf);

#define GET_PAD_FROM_NET_DEV(_pAd, _net_dev)	(_pAd) = (struct rt_rtmp_adapter *)(_net_dev)->ml_priv;

#endif /* __RT_LINUX_H__ // */