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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 | /* 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_ */ |