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/* SPDX-License-Identifier: GPL-2.0 */
/******************************************************************************
*
* Copyright(c) 2007 - 2010 Realtek Corporation. All rights reserved.
*
* Modifications for inclusion into the Linux staging tree are
* Copyright(c) 2010 Larry Finger. All rights reserved.
*
* Contact information:
* WLAN FAE <wlanfae@realtek.com>
* Larry Finger <Larry.Finger@lwfinger.net>
*
******************************************************************************/
#ifndef _WIFI_H_
#define _WIFI_H_
#include <linux/compiler.h>
#include <linux/ieee80211.h>
#define WLAN_HDR_A3_LEN 24
#define WLAN_HDR_A3_QOS_LEN 26
enum WIFI_FRAME_TYPE {
WIFI_QOS_DATA_TYPE = (BIT(7) | BIT(3)), /*!< QoS Data */
};
#define SetToDs(pbuf) ({ \
*(__le16 *)(pbuf) |= cpu_to_le16(IEEE80211_FCTL_TODS); \
})
#define GetToDs(pbuf) (((*(__le16 *)(pbuf)) & cpu_to_le16(IEEE80211_FCTL_TODS)) != 0)
#define ClearToDs(pbuf) ({ \
*(__le16 *)(pbuf) &= (~cpu_to_le16(IEEE80211_FCTL_TODS)); \
})
#define SetFrDs(pbuf) ({ \
*(__le16 *)(pbuf) |= cpu_to_le16(IEEE80211_FCTL_FROMDS); \
})
#define GetFrDs(pbuf) (((*(__le16 *)(pbuf)) & cpu_to_le16(IEEE80211_FCTL_FROMDS)) != 0)
#define ClearFrDs(pbuf) ({ \
*(__le16 *)(pbuf) &= (~cpu_to_le16(IEEE80211_FCTL_FROMDS)); \
})
static inline unsigned char get_tofr_ds(unsigned char *pframe)
{
return ((GetToDs(pframe) << 1) | GetFrDs(pframe));
}
#define SetMFrag(pbuf) ({ \
*(__le16 *)(pbuf) |= cpu_to_le16(IEEE80211_FCTL_MOREFRAGS); \
})
#define GetMFrag(pbuf) (((*(__le16 *)(pbuf)) & cpu_to_le16(IEEE80211_FCTL_MOREFRAGS)) != 0)
#define ClearMFrag(pbuf) ({ \
*(__le16 *)(pbuf) &= (~cpu_to_le16(IEEE80211_FCTL_MOREFRAGS)); \
})
#define SetRetry(pbuf) ({ \
*(__le16 *)(pbuf) |= cpu_to_le16(IEEE80211_FCTL_RETRY); \
})
#define GetRetry(pbuf) (((*(__le16 *)(pbuf)) & cpu_to_le16(IEEE80211_FCTL_RETRY)) != 0)
#define ClearRetry(pbuf) ({ \
*(__le16 *)(pbuf) &= (~cpu_to_le16(IEEE80211_FCTL_RETRY)); \
})
#define SetPwrMgt(pbuf) ({ \
*(__le16 *)(pbuf) |= cpu_to_le16(IEEE80211_FCTL_PM); \
})
#define GetPwrMgt(pbuf) (((*(__le16 *)(pbuf)) & \
cpu_to_le16(IEEE80211_FCTL_PM)) != 0)
#define ClearPwrMgt(pbuf) ({ \
*(__le16 *)(pbuf) &= (~cpu_to_le16(IEEE80211_FCTL_PM)); \
})
#define SetMData(pbuf) ({ \
*(__le16 *)(pbuf) |= cpu_to_le16(IEEE80211_FCTL_MOREDATA); \
})
#define GetMData(pbuf) (((*(__le16 *)(pbuf)) & \
cpu_to_le16(IEEE80211_FCTL_MOREDATA)) != 0)
#define ClearMData(pbuf) ({ \
*(__le16 *)(pbuf) &= (~cpu_to_le16(IEEE80211_FCTL_MOREDATA)); \
})
#define SetPrivacy(pbuf) ({ \
*(__le16 *)(pbuf) |= cpu_to_le16(IEEE80211_FCTL_PROTECTED); \
})
#define GetPrivacy(pbuf) (((*(__le16 *)(pbuf)) & \
cpu_to_le16(IEEE80211_FCTL_PROTECTED)) != 0)
#define GetOrder(pbuf) (((*(__le16 *)(pbuf)) & \
cpu_to_le16(IEEE80211_FCTL_ORDER)) != 0)
#define GetFrameType(pbuf) (le16_to_cpu(*(__le16 *)(pbuf)) & \
(BIT(3) | BIT(2)))
#define SetFrameType(pbuf, type) \
do { \
*(__le16 *)(pbuf) &= cpu_to_le16(~(BIT(3) | \
BIT(2))); \
*(__le16 *)(pbuf) |= cpu_to_le16(type); \
} while (0)
#define GetFrameSubType(pbuf) (le16_to_cpu(*(__le16 *)(pbuf)) & \
(BIT(7) | BIT(6) | BIT(5) | BIT(4) | BIT(3) | \
BIT(2)))
#define SetFrameSubType(pbuf, type) \
do { \
*(__le16 *)(pbuf) &= cpu_to_le16(~(BIT(7) | BIT(6) | \
BIT(5) | BIT(4) | BIT(3) | BIT(2))); \
*(__le16 *)(pbuf) |= cpu_to_le16(type); \
} while (0)
#define GetSequence(pbuf) (le16_to_cpu(*(__le16 *)\
((addr_t)(pbuf) + 22)) >> 4)
#define GetFragNum(pbuf) (le16_to_cpu(*(__le16 *)((addr_t)\
(pbuf) + 22)) & 0x0f)
#define SetSeqNum(pbuf, num) ({ \
*(__le16 *)((addr_t)(pbuf) + 22) = \
cpu_to_le16((le16_to_cpu(*(__le16 *)((addr_t)(pbuf) + 22)) & \
0x000f) | (0xfff0 & (num << 4))); \
})
#define SetPriority(pbuf, tid) ({ \
*(__le16 *)(pbuf) |= cpu_to_le16(tid & 0xf); \
})
#define GetPriority(pbuf) ((le16_to_cpu(*(__le16 *)(pbuf))) & 0xf)
#define SetAckpolicy(pbuf, ack) ({ \
*(__le16 *)(pbuf) |= cpu_to_le16((ack & 3) << 5); \
})
#define GetAckpolicy(pbuf) (((le16_to_cpu(*(__le16 *)pbuf)) >> 5) & 0x3)
#define GetAMsdu(pbuf) (((le16_to_cpu(*(__le16 *)pbuf)) >> 7) & 0x1)
#define GetAddr1Ptr(pbuf) ((unsigned char *)((addr_t)(pbuf) + 4))
#define GetAddr2Ptr(pbuf) ((unsigned char *)((addr_t)(pbuf) + 10))
#define GetAddr3Ptr(pbuf) ((unsigned char *)((addr_t)(pbuf) + 16))
#define GetAddr4Ptr(pbuf) ((unsigned char *)((addr_t)(pbuf) + 24))
static inline unsigned char *get_hdr_bssid(unsigned char *pframe)
{
unsigned char *sa;
unsigned int to_fr_ds = (GetToDs(pframe) << 1) | GetFrDs(pframe);
switch (to_fr_ds) {
case 0x00: /* ToDs=0, FromDs=0 */
sa = GetAddr3Ptr(pframe);
break;
case 0x01: /* ToDs=0, FromDs=1 */
sa = GetAddr2Ptr(pframe);
break;
case 0x02: /* ToDs=1, FromDs=0 */
sa = GetAddr1Ptr(pframe);
break;
default: /* ToDs=1, FromDs=1 */
sa = NULL;
break;
}
return sa;
}
/* ---------------------------------------------------------------------------
* Below is the fixed elements...
* ---------------------------------------------------------------------------
*/
#define _BEACON_ITERVAL_ 2
#define _CAPABILITY_ 2
#define _TIMESTAMP_ 8
/*-----------------------------------------------------------------------------
* Below is the definition for WMM
*------------------------------------------------------------------------------
*/
#define _WMM_IE_Length_ 7 /* for WMM STA */
#endif /* _WIFI_H_ */
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