Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1 | /* |
Johannes Berg | 3017b80 | 2007-08-28 17:01:53 -0400 | [diff] [blame] | 2 | * mac80211 <-> driver interface |
| 3 | * |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 4 | * Copyright 2002-2005, Devicescape Software, Inc. |
| 5 | * Copyright 2006-2007 Jiri Benc <jbenc@suse.cz> |
Johannes Berg | 3017b80 | 2007-08-28 17:01:53 -0400 | [diff] [blame] | 6 | * Copyright 2007 Johannes Berg <johannes@sipsolutions.net> |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 7 | * |
| 8 | * This program is free software; you can redistribute it and/or modify |
| 9 | * it under the terms of the GNU General Public License version 2 as |
| 10 | * published by the Free Software Foundation. |
| 11 | */ |
| 12 | |
| 13 | #ifndef MAC80211_H |
| 14 | #define MAC80211_H |
| 15 | |
| 16 | #include <linux/kernel.h> |
| 17 | #include <linux/if_ether.h> |
| 18 | #include <linux/skbuff.h> |
| 19 | #include <linux/wireless.h> |
| 20 | #include <linux/device.h> |
| 21 | #include <linux/ieee80211.h> |
| 22 | #include <net/wireless.h> |
| 23 | #include <net/cfg80211.h> |
| 24 | |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 25 | /** |
| 26 | * DOC: Introduction |
| 27 | * |
| 28 | * mac80211 is the Linux stack for 802.11 hardware that implements |
| 29 | * only partial functionality in hard- or firmware. This document |
| 30 | * defines the interface between mac80211 and low-level hardware |
| 31 | * drivers. |
| 32 | */ |
| 33 | |
| 34 | /** |
| 35 | * DOC: Calling mac80211 from interrupts |
| 36 | * |
| 37 | * Only ieee80211_tx_status_irqsafe() and ieee80211_rx_irqsafe() can be |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 38 | * called in hardware interrupt context. The low-level driver must not call any |
| 39 | * other functions in hardware interrupt context. If there is a need for such |
| 40 | * call, the low-level driver should first ACK the interrupt and perform the |
Johannes Berg | 2485f71 | 2008-02-25 16:27:41 +0100 | [diff] [blame] | 41 | * IEEE 802.11 code call after this, e.g. from a scheduled workqueue or even |
| 42 | * tasklet function. |
| 43 | * |
| 44 | * NOTE: If the driver opts to use the _irqsafe() functions, it may not also |
| 45 | * use the non-irqsafe functions! |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 46 | */ |
| 47 | |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 48 | /** |
| 49 | * DOC: Warning |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 50 | * |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 51 | * If you're reading this document and not the header file itself, it will |
| 52 | * be incomplete because not all documentation has been converted yet. |
| 53 | */ |
| 54 | |
| 55 | /** |
| 56 | * DOC: Frame format |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 57 | * |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 58 | * As a general rule, when frames are passed between mac80211 and the driver, |
| 59 | * they start with the IEEE 802.11 header and include the same octets that are |
| 60 | * sent over the air except for the FCS which should be calculated by the |
| 61 | * hardware. |
| 62 | * |
| 63 | * There are, however, various exceptions to this rule for advanced features: |
| 64 | * |
| 65 | * The first exception is for hardware encryption and decryption offload |
| 66 | * where the IV/ICV may or may not be generated in hardware. |
| 67 | * |
| 68 | * Secondly, when the hardware handles fragmentation, the frame handed to |
| 69 | * the driver from mac80211 is the MSDU, not the MPDU. |
| 70 | * |
| 71 | * Finally, for received frames, the driver is able to indicate that it has |
| 72 | * filled a radiotap header and put that in front of the frame; if it does |
| 73 | * not do so then mac80211 may add this under certain circumstances. |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 74 | */ |
| 75 | |
Ron Rindjunsky | 10816d4 | 2007-11-26 16:14:30 +0200 | [diff] [blame] | 76 | /** |
| 77 | * struct ieee80211_ht_bss_info - describing BSS's HT characteristics |
| 78 | * |
| 79 | * This structure describes most essential parameters needed |
| 80 | * to describe 802.11n HT characteristics in a BSS |
| 81 | * |
| 82 | * @primary_channel: channel number of primery channel |
| 83 | * @bss_cap: 802.11n's general BSS capabilities (e.g. channel width) |
| 84 | * @bss_op_mode: 802.11n's BSS operation modes (e.g. HT protection) |
| 85 | */ |
| 86 | struct ieee80211_ht_bss_info { |
| 87 | u8 primary_channel; |
| 88 | u8 bss_cap; /* use IEEE80211_HT_IE_CHA_ */ |
| 89 | u8 bss_op_mode; /* use IEEE80211_HT_IE_ */ |
| 90 | }; |
| 91 | |
| 92 | /** |
Johannes Berg | 6b301cd | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 93 | * struct ieee80211_tx_queue_params - transmit queue configuration |
| 94 | * |
| 95 | * The information provided in this structure is required for QoS |
Johannes Berg | 3330d7b | 2008-02-10 16:49:38 +0100 | [diff] [blame] | 96 | * transmit queue configuration. Cf. IEEE 802.11 7.3.2.29. |
Johannes Berg | 6b301cd | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 97 | * |
| 98 | * @aifs: arbitration interface space [0..255, -1: use default] |
| 99 | * @cw_min: minimum contention window [will be a value of the form |
| 100 | * 2^n-1 in the range 1..1023; 0: use default] |
| 101 | * @cw_max: maximum contention window [like @cw_min] |
Johannes Berg | 3330d7b | 2008-02-10 16:49:38 +0100 | [diff] [blame] | 102 | * @txop: maximum burst time in units of 32 usecs, 0 meaning disabled |
Johannes Berg | 6b301cd | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 103 | */ |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 104 | struct ieee80211_tx_queue_params { |
Johannes Berg | 3330d7b | 2008-02-10 16:49:38 +0100 | [diff] [blame] | 105 | s16 aifs; |
| 106 | u16 cw_min; |
| 107 | u16 cw_max; |
| 108 | u16 txop; |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 109 | }; |
| 110 | |
Johannes Berg | 6b301cd | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 111 | /** |
| 112 | * struct ieee80211_tx_queue_stats_data - transmit queue statistics |
| 113 | * |
| 114 | * @len: number of packets in queue |
| 115 | * @limit: queue length limit |
| 116 | * @count: number of frames sent |
| 117 | */ |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 118 | struct ieee80211_tx_queue_stats_data { |
Johannes Berg | 6b301cd | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 119 | unsigned int len; |
| 120 | unsigned int limit; |
| 121 | unsigned int count; |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 122 | }; |
| 123 | |
Johannes Berg | 6b301cd | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 124 | /** |
| 125 | * enum ieee80211_tx_queue - transmit queue number |
| 126 | * |
| 127 | * These constants are used with some callbacks that take a |
| 128 | * queue number to set parameters for a queue. |
| 129 | * |
| 130 | * @IEEE80211_TX_QUEUE_DATA0: data queue 0 |
| 131 | * @IEEE80211_TX_QUEUE_DATA1: data queue 1 |
| 132 | * @IEEE80211_TX_QUEUE_DATA2: data queue 2 |
| 133 | * @IEEE80211_TX_QUEUE_DATA3: data queue 3 |
| 134 | * @IEEE80211_TX_QUEUE_DATA4: data queue 4 |
| 135 | * @IEEE80211_TX_QUEUE_SVP: ?? |
| 136 | * @NUM_TX_DATA_QUEUES: number of data queues |
| 137 | * @IEEE80211_TX_QUEUE_AFTER_BEACON: transmit queue for frames to be |
| 138 | * sent after a beacon |
| 139 | * @IEEE80211_TX_QUEUE_BEACON: transmit queue for beacon frames |
Ron Rindjunsky | 9e72349 | 2008-01-28 14:07:18 +0200 | [diff] [blame] | 140 | * @NUM_TX_DATA_QUEUES_AMPDU: adding more queues for A-MPDU |
Johannes Berg | 6b301cd | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 141 | */ |
| 142 | enum ieee80211_tx_queue { |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 143 | IEEE80211_TX_QUEUE_DATA0, |
| 144 | IEEE80211_TX_QUEUE_DATA1, |
| 145 | IEEE80211_TX_QUEUE_DATA2, |
| 146 | IEEE80211_TX_QUEUE_DATA3, |
| 147 | IEEE80211_TX_QUEUE_DATA4, |
| 148 | IEEE80211_TX_QUEUE_SVP, |
| 149 | |
| 150 | NUM_TX_DATA_QUEUES, |
| 151 | |
| 152 | /* due to stupidity in the sub-ioctl userspace interface, the items in |
| 153 | * this struct need to have fixed values. As soon as it is removed, we can |
| 154 | * fix these entries. */ |
| 155 | IEEE80211_TX_QUEUE_AFTER_BEACON = 6, |
Ron Rindjunsky | 9e72349 | 2008-01-28 14:07:18 +0200 | [diff] [blame] | 156 | IEEE80211_TX_QUEUE_BEACON = 7, |
| 157 | NUM_TX_DATA_QUEUES_AMPDU = 16 |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 158 | }; |
| 159 | |
| 160 | struct ieee80211_tx_queue_stats { |
Ron Rindjunsky | 9e72349 | 2008-01-28 14:07:18 +0200 | [diff] [blame] | 161 | struct ieee80211_tx_queue_stats_data data[NUM_TX_DATA_QUEUES_AMPDU]; |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 162 | }; |
| 163 | |
| 164 | struct ieee80211_low_level_stats { |
| 165 | unsigned int dot11ACKFailureCount; |
| 166 | unsigned int dot11RTSFailureCount; |
| 167 | unsigned int dot11FCSErrorCount; |
| 168 | unsigned int dot11RTSSuccessCount; |
| 169 | }; |
| 170 | |
Johannes Berg | 471b3ef | 2007-12-28 14:32:58 +0100 | [diff] [blame] | 171 | /** |
| 172 | * enum ieee80211_bss_change - BSS change notification flags |
| 173 | * |
| 174 | * These flags are used with the bss_info_changed() callback |
| 175 | * to indicate which BSS parameter changed. |
| 176 | * |
| 177 | * @BSS_CHANGED_ASSOC: association status changed (associated/disassociated), |
| 178 | * also implies a change in the AID. |
| 179 | * @BSS_CHANGED_ERP_CTS_PROT: CTS protection changed |
| 180 | * @BSS_CHANGED_ERP_PREAMBLE: preamble changed |
| 181 | */ |
| 182 | enum ieee80211_bss_change { |
| 183 | BSS_CHANGED_ASSOC = 1<<0, |
| 184 | BSS_CHANGED_ERP_CTS_PROT = 1<<1, |
| 185 | BSS_CHANGED_ERP_PREAMBLE = 1<<2, |
| 186 | }; |
| 187 | |
| 188 | /** |
| 189 | * struct ieee80211_bss_conf - holds the BSS's changing parameters |
| 190 | * |
| 191 | * This structure keeps information about a BSS (and an association |
| 192 | * to that BSS) that can change during the lifetime of the BSS. |
| 193 | * |
| 194 | * @assoc: association status |
| 195 | * @aid: association ID number, valid only when @assoc is true |
| 196 | * @use_cts_prot: use CTS protection |
| 197 | * @use_short_preamble: use 802.11b short preamble |
| 198 | */ |
| 199 | struct ieee80211_bss_conf { |
| 200 | /* association related data */ |
| 201 | bool assoc; |
| 202 | u16 aid; |
| 203 | /* erp related data */ |
| 204 | bool use_cts_prot; |
| 205 | bool use_short_preamble; |
| 206 | }; |
| 207 | |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 208 | /* Transmit control fields. This data structure is passed to low-level driver |
| 209 | * with each TX frame. The low-level driver is responsible for configuring |
| 210 | * the hardware to use given values (depending on what is supported). */ |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 211 | |
| 212 | struct ieee80211_tx_control { |
Johannes Berg | 32bfd35 | 2007-12-19 01:31:26 +0100 | [diff] [blame] | 213 | struct ieee80211_vif *vif; |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 214 | struct ieee80211_rate *tx_rate; |
| 215 | |
| 216 | /* Transmit rate for RTS/CTS frame */ |
| 217 | struct ieee80211_rate *rts_cts_rate; |
| 218 | |
| 219 | /* retry rate for the last retries */ |
| 220 | struct ieee80211_rate *alt_retry_rate; |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 221 | |
| 222 | #define IEEE80211_TXCTL_REQ_TX_STATUS (1<<0)/* request TX status callback for |
| 223 | * this frame */ |
| 224 | #define IEEE80211_TXCTL_DO_NOT_ENCRYPT (1<<1) /* send this frame without |
| 225 | * encryption; e.g., for EAPOL |
| 226 | * frames */ |
| 227 | #define IEEE80211_TXCTL_USE_RTS_CTS (1<<2) /* use RTS-CTS before sending |
| 228 | * frame */ |
| 229 | #define IEEE80211_TXCTL_USE_CTS_PROTECT (1<<3) /* use CTS protection for the |
| 230 | * frame (e.g., for combined |
| 231 | * 802.11g / 802.11b networks) */ |
| 232 | #define IEEE80211_TXCTL_NO_ACK (1<<4) /* tell the low level not to |
| 233 | * wait for an ack */ |
| 234 | #define IEEE80211_TXCTL_RATE_CTRL_PROBE (1<<5) |
Johannes Berg | d46e144 | 2008-02-20 23:59:33 +0100 | [diff] [blame] | 235 | #define IEEE80211_TXCTL_CLEAR_PS_FILT (1<<6) /* clear powersave filter |
| 236 | * for destination station */ |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 237 | #define IEEE80211_TXCTL_REQUEUE (1<<7) |
| 238 | #define IEEE80211_TXCTL_FIRST_FRAGMENT (1<<8) /* this is a first fragment of |
| 239 | * the frame */ |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 240 | #define IEEE80211_TXCTL_SHORT_PREAMBLE (1<<9) |
Ivo van Doorn | d5d08de | 2007-07-27 15:43:23 +0200 | [diff] [blame] | 241 | #define IEEE80211_TXCTL_LONG_RETRY_LIMIT (1<<10) /* this frame should be send |
| 242 | * using the through |
| 243 | * set_retry_limit configured |
| 244 | * long retry value */ |
Johannes Berg | 678f5f7 | 2007-12-19 01:31:23 +0100 | [diff] [blame] | 245 | #define IEEE80211_TXCTL_EAPOL_FRAME (1<<11) /* internal to mac80211 */ |
Johannes Berg | 7d54d0d | 2007-12-19 01:31:25 +0100 | [diff] [blame] | 246 | #define IEEE80211_TXCTL_SEND_AFTER_DTIM (1<<12) /* send this frame after DTIM |
| 247 | * beacon */ |
Ron Rindjunsky | 9e72349 | 2008-01-28 14:07:18 +0200 | [diff] [blame] | 248 | #define IEEE80211_TXCTL_AMPDU (1<<13) /* this frame should be sent |
| 249 | * as part of an A-MPDU */ |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 250 | u32 flags; /* tx control flags defined |
| 251 | * above */ |
Johannes Berg | 6a7664d | 2007-09-14 11:10:25 -0400 | [diff] [blame] | 252 | u8 key_idx; /* keyidx from hw->set_key(), undefined if |
| 253 | * IEEE80211_TXCTL_DO_NOT_ENCRYPT is set */ |
Ivo van Doorn | d5d08de | 2007-07-27 15:43:23 +0200 | [diff] [blame] | 254 | u8 retry_limit; /* 1 = only first attempt, 2 = one retry, .. |
| 255 | * This could be used when set_retry_limit |
| 256 | * is not implemented by the driver */ |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 257 | u8 antenna_sel_tx; /* 0 = default/diversity, 1 = Ant0, 2 = Ant1 */ |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 258 | u8 icv_len; /* length of the ICV/MIC field in octets */ |
| 259 | u8 iv_len; /* length of the IV field in octets */ |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 260 | u8 queue; /* hardware queue to use for this frame; |
| 261 | * 0 = highest, hw->queues-1 = lowest */ |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 262 | int type; /* internal */ |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 263 | }; |
| 264 | |
Johannes Berg | 7ac1bd6 | 2007-09-14 11:10:25 -0400 | [diff] [blame] | 265 | |
| 266 | /** |
| 267 | * enum mac80211_rx_flags - receive flags |
| 268 | * |
| 269 | * These flags are used with the @flag member of &struct ieee80211_rx_status. |
| 270 | * @RX_FLAG_MMIC_ERROR: Michael MIC error was reported on this frame. |
| 271 | * Use together with %RX_FLAG_MMIC_STRIPPED. |
| 272 | * @RX_FLAG_DECRYPTED: This frame was decrypted in hardware. |
| 273 | * @RX_FLAG_RADIOTAP: This frame starts with a radiotap header. |
| 274 | * @RX_FLAG_MMIC_STRIPPED: the Michael MIC is stripped off this frame, |
| 275 | * verification has been done by the hardware. |
| 276 | * @RX_FLAG_IV_STRIPPED: The IV/ICV are stripped from this frame. |
| 277 | * If this flag is set, the stack cannot do any replay detection |
| 278 | * hence the driver or hardware will have to do that. |
Johannes Berg | 72abd81 | 2007-09-17 01:29:22 -0400 | [diff] [blame] | 279 | * @RX_FLAG_FAILED_FCS_CRC: Set this flag if the FCS check failed on |
| 280 | * the frame. |
| 281 | * @RX_FLAG_FAILED_PLCP_CRC: Set this flag if the PCLP check failed on |
| 282 | * the frame. |
Johannes Berg | c49e5ea | 2007-12-11 21:33:42 +0100 | [diff] [blame] | 283 | * @RX_FLAG_TSFT: The timestamp passed in the RX status (@mactime field) |
Bruno Randolf | 9d9bf77 | 2008-02-18 11:21:36 +0900 | [diff] [blame] | 284 | * is valid. This is useful in monitor mode and necessary for beacon frames |
| 285 | * to enable IBSS merging. |
Johannes Berg | 7ac1bd6 | 2007-09-14 11:10:25 -0400 | [diff] [blame] | 286 | */ |
| 287 | enum mac80211_rx_flags { |
| 288 | RX_FLAG_MMIC_ERROR = 1<<0, |
| 289 | RX_FLAG_DECRYPTED = 1<<1, |
| 290 | RX_FLAG_RADIOTAP = 1<<2, |
| 291 | RX_FLAG_MMIC_STRIPPED = 1<<3, |
| 292 | RX_FLAG_IV_STRIPPED = 1<<4, |
Johannes Berg | 72abd81 | 2007-09-17 01:29:22 -0400 | [diff] [blame] | 293 | RX_FLAG_FAILED_FCS_CRC = 1<<5, |
| 294 | RX_FLAG_FAILED_PLCP_CRC = 1<<6, |
Johannes Berg | c49e5ea | 2007-12-11 21:33:42 +0100 | [diff] [blame] | 295 | RX_FLAG_TSFT = 1<<7, |
Johannes Berg | 7ac1bd6 | 2007-09-14 11:10:25 -0400 | [diff] [blame] | 296 | }; |
| 297 | |
| 298 | /** |
| 299 | * struct ieee80211_rx_status - receive status |
| 300 | * |
| 301 | * The low-level driver should provide this information (the subset |
| 302 | * supported by hardware) to the 802.11 code with each received |
| 303 | * frame. |
Bruno Randolf | c132bec | 2008-02-18 11:20:51 +0900 | [diff] [blame] | 304 | * @mactime: value in microseconds of the 64-bit Time Synchronization Function |
| 305 | * (TSF) timer when the first data symbol (MPDU) arrived at the hardware. |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 306 | * @band: the active band when this frame was received |
Johannes Berg | 7ac1bd6 | 2007-09-14 11:10:25 -0400 | [diff] [blame] | 307 | * @freq: frequency the radio was tuned to when receiving this frame, in MHz |
Johannes Berg | 7ac1bd6 | 2007-09-14 11:10:25 -0400 | [diff] [blame] | 308 | * @ssi: signal strength when receiving this frame |
| 309 | * @signal: used as 'qual' in statistics reporting |
| 310 | * @noise: PHY noise when receiving this frame |
| 311 | * @antenna: antenna used |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 312 | * @rate_idx: index of data rate into band's supported rates |
Johannes Berg | 7ac1bd6 | 2007-09-14 11:10:25 -0400 | [diff] [blame] | 313 | * @flag: %RX_FLAG_* |
| 314 | */ |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 315 | struct ieee80211_rx_status { |
| 316 | u64 mactime; |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 317 | enum ieee80211_band band; |
Johannes Berg | 7ac1bd6 | 2007-09-14 11:10:25 -0400 | [diff] [blame] | 318 | int freq; |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 319 | int ssi; |
Johannes Berg | 7ac1bd6 | 2007-09-14 11:10:25 -0400 | [diff] [blame] | 320 | int signal; |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 321 | int noise; |
| 322 | int antenna; |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 323 | int rate_idx; |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 324 | int flag; |
| 325 | }; |
| 326 | |
Johannes Berg | 6b301cd | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 327 | /** |
| 328 | * enum ieee80211_tx_status_flags - transmit status flags |
| 329 | * |
| 330 | * Status flags to indicate various transmit conditions. |
| 331 | * |
| 332 | * @IEEE80211_TX_STATUS_TX_FILTERED: The frame was not transmitted |
| 333 | * because the destination STA was in powersave mode. |
Johannes Berg | 6b301cd | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 334 | * @IEEE80211_TX_STATUS_ACK: Frame was acknowledged |
Ron Rindjunsky | 483fdce | 2008-01-28 14:07:21 +0200 | [diff] [blame] | 335 | * @IEEE80211_TX_STATUS_AMPDU: The frame was aggregated, so status |
| 336 | * is for the whole aggregation. |
Johannes Berg | 6b301cd | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 337 | */ |
| 338 | enum ieee80211_tx_status_flags { |
| 339 | IEEE80211_TX_STATUS_TX_FILTERED = 1<<0, |
| 340 | IEEE80211_TX_STATUS_ACK = 1<<1, |
Ron Rindjunsky | 483fdce | 2008-01-28 14:07:21 +0200 | [diff] [blame] | 341 | IEEE80211_TX_STATUS_AMPDU = 1<<2, |
Johannes Berg | 6b301cd | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 342 | }; |
| 343 | |
| 344 | /** |
| 345 | * struct ieee80211_tx_status - transmit status |
| 346 | * |
| 347 | * As much information as possible should be provided for each transmitted |
| 348 | * frame with ieee80211_tx_status(). |
| 349 | * |
| 350 | * @control: a copy of the &struct ieee80211_tx_control passed to the driver |
| 351 | * in the tx() callback. |
Johannes Berg | 6b301cd | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 352 | * @flags: transmit status flags, defined above |
Ron Rindjunsky | 483fdce | 2008-01-28 14:07:21 +0200 | [diff] [blame] | 353 | * @retry_count: number of retries |
Johannes Berg | 6b301cd | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 354 | * @excessive_retries: set to 1 if the frame was retried many times |
| 355 | * but not acknowledged |
Ron Rindjunsky | 483fdce | 2008-01-28 14:07:21 +0200 | [diff] [blame] | 356 | * @ampdu_ack_len: number of aggregated frames. |
| 357 | * relevant only if IEEE80211_TX_STATUS_AMPDU was set. |
| 358 | * @ampdu_ack_map: block ack bit map for the aggregation. |
| 359 | * relevant only if IEEE80211_TX_STATUS_AMPDU was set. |
| 360 | * @ack_signal: signal strength of the ACK frame |
Johannes Berg | 6b301cd | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 361 | * @queue_length: ?? REMOVE |
| 362 | * @queue_number: ?? REMOVE |
| 363 | */ |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 364 | struct ieee80211_tx_status { |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 365 | struct ieee80211_tx_control control; |
Johannes Berg | 6b301cd | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 366 | u8 flags; |
Johannes Berg | 6b301cd | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 367 | u8 retry_count; |
Ron Rindjunsky | 483fdce | 2008-01-28 14:07:21 +0200 | [diff] [blame] | 368 | bool excessive_retries; |
| 369 | u8 ampdu_ack_len; |
| 370 | u64 ampdu_ack_map; |
Johannes Berg | 6b301cd | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 371 | int ack_signal; |
| 372 | int queue_length; |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 373 | int queue_number; |
| 374 | }; |
| 375 | |
Johannes Berg | 6b301cd | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 376 | /** |
| 377 | * enum ieee80211_conf_flags - configuration flags |
| 378 | * |
| 379 | * Flags to define PHY configuration options |
| 380 | * |
| 381 | * @IEEE80211_CONF_SHORT_SLOT_TIME: use 802.11g short slot time |
| 382 | * @IEEE80211_CONF_RADIOTAP: add radiotap header at receive time (if supported) |
Ron Rindjunsky | 10816d4 | 2007-11-26 16:14:30 +0200 | [diff] [blame] | 383 | * @IEEE80211_CONF_SUPPORT_HT_MODE: use 802.11n HT capabilities (if supported) |
Johannes Berg | 6b301cd | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 384 | */ |
| 385 | enum ieee80211_conf_flags { |
Ron Rindjunsky | 10816d4 | 2007-11-26 16:14:30 +0200 | [diff] [blame] | 386 | IEEE80211_CONF_SHORT_SLOT_TIME = (1<<0), |
| 387 | IEEE80211_CONF_RADIOTAP = (1<<1), |
| 388 | IEEE80211_CONF_SUPPORT_HT_MODE = (1<<2), |
Johannes Berg | 6b301cd | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 389 | }; |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 390 | |
| 391 | /** |
| 392 | * struct ieee80211_conf - configuration of the device |
| 393 | * |
| 394 | * This struct indicates how the driver shall configure the hardware. |
| 395 | * |
| 396 | * @radio_enabled: when zero, driver is required to switch off the radio. |
Johannes Berg | 6b301cd | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 397 | * TODO make a flag |
Johannes Berg | 6b301cd | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 398 | * @beacon_int: beacon interval (TODO make interface config) |
| 399 | * @flags: configuration flags defined above |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 400 | * @power_level: requested transmit power (in dBm) |
| 401 | * @max_antenna_gain: maximum antenna gain (in dBi) |
Johannes Berg | 6b301cd | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 402 | * @antenna_sel_tx: transmit antenna selection, 0: default/diversity, |
| 403 | * 1/2: antenna 0/1 |
| 404 | * @antenna_sel_rx: receive antenna selection, like @antenna_sel_tx |
Ron Rindjunsky | 10816d4 | 2007-11-26 16:14:30 +0200 | [diff] [blame] | 405 | * @ht_conf: describes current self configuration of 802.11n HT capabilies |
| 406 | * @ht_bss_conf: describes current BSS configuration of 802.11n HT parameters |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 407 | * @channel: the channel to tune to |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 408 | */ |
| 409 | struct ieee80211_conf { |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 410 | unsigned int regulatory_domain; |
| 411 | int radio_enabled; |
| 412 | |
| 413 | int beacon_int; |
Johannes Berg | 6b301cd | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 414 | u32 flags; |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 415 | int power_level; |
| 416 | int max_antenna_gain; |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 417 | u8 antenna_sel_tx; |
| 418 | u8 antenna_sel_rx; |
Ron Rindjunsky | 10816d4 | 2007-11-26 16:14:30 +0200 | [diff] [blame] | 419 | |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 420 | struct ieee80211_channel *channel; |
| 421 | |
Ron Rindjunsky | 10816d4 | 2007-11-26 16:14:30 +0200 | [diff] [blame] | 422 | struct ieee80211_ht_info ht_conf; |
| 423 | struct ieee80211_ht_bss_info ht_bss_conf; |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 424 | }; |
| 425 | |
| 426 | /** |
| 427 | * enum ieee80211_if_types - types of 802.11 network interfaces |
| 428 | * |
Johannes Berg | a289755 | 2007-09-28 14:01:25 +0200 | [diff] [blame] | 429 | * @IEEE80211_IF_TYPE_INVALID: invalid interface type, not used |
| 430 | * by mac80211 itself |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 431 | * @IEEE80211_IF_TYPE_AP: interface in AP mode. |
| 432 | * @IEEE80211_IF_TYPE_MGMT: special interface for communication with hostap |
| 433 | * daemon. Drivers should never see this type. |
| 434 | * @IEEE80211_IF_TYPE_STA: interface in STA (client) mode. |
| 435 | * @IEEE80211_IF_TYPE_IBSS: interface in IBSS (ad-hoc) mode. |
| 436 | * @IEEE80211_IF_TYPE_MNTR: interface in monitor (rfmon) mode. |
| 437 | * @IEEE80211_IF_TYPE_WDS: interface in WDS mode. |
Johannes Berg | 0ec3ca4 | 2007-09-17 01:29:24 -0400 | [diff] [blame] | 438 | * @IEEE80211_IF_TYPE_VLAN: VLAN interface bound to an AP, drivers |
| 439 | * will never see this type. |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 440 | */ |
| 441 | enum ieee80211_if_types { |
Johannes Berg | a289755 | 2007-09-28 14:01:25 +0200 | [diff] [blame] | 442 | IEEE80211_IF_TYPE_INVALID, |
Johannes Berg | 0ec3ca4 | 2007-09-17 01:29:24 -0400 | [diff] [blame] | 443 | IEEE80211_IF_TYPE_AP, |
Johannes Berg | 0ec3ca4 | 2007-09-17 01:29:24 -0400 | [diff] [blame] | 444 | IEEE80211_IF_TYPE_STA, |
| 445 | IEEE80211_IF_TYPE_IBSS, |
Johannes Berg | 6032f93 | 2008-02-23 15:17:07 +0100 | [diff] [blame^] | 446 | IEEE80211_IF_TYPE_MESH_POINT, |
Johannes Berg | 0ec3ca4 | 2007-09-17 01:29:24 -0400 | [diff] [blame] | 447 | IEEE80211_IF_TYPE_MNTR, |
| 448 | IEEE80211_IF_TYPE_WDS, |
| 449 | IEEE80211_IF_TYPE_VLAN, |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 450 | }; |
| 451 | |
| 452 | /** |
Johannes Berg | 32bfd35 | 2007-12-19 01:31:26 +0100 | [diff] [blame] | 453 | * struct ieee80211_vif - per-interface data |
| 454 | * |
| 455 | * Data in this structure is continually present for driver |
| 456 | * use during the life of a virtual interface. |
| 457 | * |
Johannes Berg | 51fb61e | 2007-12-19 01:31:27 +0100 | [diff] [blame] | 458 | * @type: type of this virtual interface |
Johannes Berg | 32bfd35 | 2007-12-19 01:31:26 +0100 | [diff] [blame] | 459 | * @drv_priv: data area for driver use, will always be aligned to |
| 460 | * sizeof(void *). |
| 461 | */ |
| 462 | struct ieee80211_vif { |
Johannes Berg | 51fb61e | 2007-12-19 01:31:27 +0100 | [diff] [blame] | 463 | enum ieee80211_if_types type; |
Johannes Berg | 32bfd35 | 2007-12-19 01:31:26 +0100 | [diff] [blame] | 464 | /* must be last */ |
| 465 | u8 drv_priv[0] __attribute__((__aligned__(sizeof(void *)))); |
| 466 | }; |
| 467 | |
| 468 | /** |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 469 | * struct ieee80211_if_init_conf - initial configuration of an interface |
| 470 | * |
Johannes Berg | 32bfd35 | 2007-12-19 01:31:26 +0100 | [diff] [blame] | 471 | * @vif: pointer to a driver-use per-interface structure. The pointer |
| 472 | * itself is also used for various functions including |
| 473 | * ieee80211_beacon_get() and ieee80211_get_buffered_bc(). |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 474 | * @type: one of &enum ieee80211_if_types constants. Determines the type of |
| 475 | * added/removed interface. |
| 476 | * @mac_addr: pointer to MAC address of the interface. This pointer is valid |
| 477 | * until the interface is removed (i.e. it cannot be used after |
| 478 | * remove_interface() callback was called for this interface). |
| 479 | * |
| 480 | * This structure is used in add_interface() and remove_interface() |
| 481 | * callbacks of &struct ieee80211_hw. |
Johannes Berg | 4480f15c | 2007-07-10 19:32:10 +0200 | [diff] [blame] | 482 | * |
| 483 | * When you allow multiple interfaces to be added to your PHY, take care |
| 484 | * that the hardware can actually handle multiple MAC addresses. However, |
| 485 | * also take care that when there's no interface left with mac_addr != %NULL |
| 486 | * you remove the MAC address from the device to avoid acknowledging packets |
| 487 | * in pure monitor mode. |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 488 | */ |
| 489 | struct ieee80211_if_init_conf { |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 490 | enum ieee80211_if_types type; |
Johannes Berg | 32bfd35 | 2007-12-19 01:31:26 +0100 | [diff] [blame] | 491 | struct ieee80211_vif *vif; |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 492 | void *mac_addr; |
| 493 | }; |
| 494 | |
| 495 | /** |
| 496 | * struct ieee80211_if_conf - configuration of an interface |
| 497 | * |
| 498 | * @type: type of the interface. This is always the same as was specified in |
| 499 | * &struct ieee80211_if_init_conf. The type of an interface never changes |
| 500 | * during the life of the interface; this field is present only for |
| 501 | * convenience. |
| 502 | * @bssid: BSSID of the network we are associated to/creating. |
| 503 | * @ssid: used (together with @ssid_len) by drivers for hardware that |
| 504 | * generate beacons independently. The pointer is valid only during the |
| 505 | * config_interface() call, so copy the value somewhere if you need |
| 506 | * it. |
| 507 | * @ssid_len: length of the @ssid field. |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 508 | * @beacon: beacon template. Valid only if @host_gen_beacon_template in |
| 509 | * &struct ieee80211_hw is set. The driver is responsible of freeing |
| 510 | * the sk_buff. |
| 511 | * @beacon_control: tx_control for the beacon template, this field is only |
| 512 | * valid when the @beacon field was set. |
| 513 | * |
| 514 | * This structure is passed to the config_interface() callback of |
| 515 | * &struct ieee80211_hw. |
| 516 | */ |
| 517 | struct ieee80211_if_conf { |
| 518 | int type; |
| 519 | u8 *bssid; |
| 520 | u8 *ssid; |
| 521 | size_t ssid_len; |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 522 | struct sk_buff *beacon; |
| 523 | struct ieee80211_tx_control *beacon_control; |
| 524 | }; |
| 525 | |
Johannes Berg | 7ac1bd6 | 2007-09-14 11:10:25 -0400 | [diff] [blame] | 526 | /** |
| 527 | * enum ieee80211_key_alg - key algorithm |
Johannes Berg | 7ac1bd6 | 2007-09-14 11:10:25 -0400 | [diff] [blame] | 528 | * @ALG_WEP: WEP40 or WEP104 |
| 529 | * @ALG_TKIP: TKIP |
| 530 | * @ALG_CCMP: CCMP (AES) |
| 531 | */ |
Johannes Berg | ea49c35 | 2007-09-18 17:29:21 -0400 | [diff] [blame] | 532 | enum ieee80211_key_alg { |
Johannes Berg | 8f20fc2 | 2007-08-28 17:01:54 -0400 | [diff] [blame] | 533 | ALG_WEP, |
| 534 | ALG_TKIP, |
| 535 | ALG_CCMP, |
Johannes Berg | ea49c35 | 2007-09-18 17:29:21 -0400 | [diff] [blame] | 536 | }; |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 537 | |
Johannes Berg | 11a843b | 2007-08-28 17:01:55 -0400 | [diff] [blame] | 538 | |
Johannes Berg | 7ac1bd6 | 2007-09-14 11:10:25 -0400 | [diff] [blame] | 539 | /** |
| 540 | * enum ieee80211_key_flags - key flags |
| 541 | * |
| 542 | * These flags are used for communication about keys between the driver |
| 543 | * and mac80211, with the @flags parameter of &struct ieee80211_key_conf. |
| 544 | * |
| 545 | * @IEEE80211_KEY_FLAG_WMM_STA: Set by mac80211, this flag indicates |
| 546 | * that the STA this key will be used with could be using QoS. |
| 547 | * @IEEE80211_KEY_FLAG_GENERATE_IV: This flag should be set by the |
| 548 | * driver to indicate that it requires IV generation for this |
| 549 | * particular key. |
| 550 | * @IEEE80211_KEY_FLAG_GENERATE_MMIC: This flag should be set by |
| 551 | * the driver for a TKIP key if it requires Michael MIC |
| 552 | * generation in software. |
| 553 | */ |
| 554 | enum ieee80211_key_flags { |
| 555 | IEEE80211_KEY_FLAG_WMM_STA = 1<<0, |
| 556 | IEEE80211_KEY_FLAG_GENERATE_IV = 1<<1, |
| 557 | IEEE80211_KEY_FLAG_GENERATE_MMIC= 1<<2, |
| 558 | }; |
| 559 | |
| 560 | /** |
| 561 | * struct ieee80211_key_conf - key information |
| 562 | * |
| 563 | * This key information is given by mac80211 to the driver by |
| 564 | * the set_key() callback in &struct ieee80211_ops. |
| 565 | * |
| 566 | * @hw_key_idx: To be set by the driver, this is the key index the driver |
| 567 | * wants to be given when a frame is transmitted and needs to be |
Johannes Berg | 6a7664d | 2007-09-14 11:10:25 -0400 | [diff] [blame] | 568 | * encrypted in hardware. |
Johannes Berg | 7ac1bd6 | 2007-09-14 11:10:25 -0400 | [diff] [blame] | 569 | * @alg: The key algorithm. |
| 570 | * @flags: key flags, see &enum ieee80211_key_flags. |
| 571 | * @keyidx: the key index (0-3) |
| 572 | * @keylen: key material length |
| 573 | * @key: key material |
| 574 | */ |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 575 | struct ieee80211_key_conf { |
Johannes Berg | ea49c35 | 2007-09-18 17:29:21 -0400 | [diff] [blame] | 576 | enum ieee80211_key_alg alg; |
Johannes Berg | 6a7664d | 2007-09-14 11:10:25 -0400 | [diff] [blame] | 577 | u8 hw_key_idx; |
Johannes Berg | 11a843b | 2007-08-28 17:01:55 -0400 | [diff] [blame] | 578 | u8 flags; |
Johannes Berg | 11a843b | 2007-08-28 17:01:55 -0400 | [diff] [blame] | 579 | s8 keyidx; |
Johannes Berg | 11a843b | 2007-08-28 17:01:55 -0400 | [diff] [blame] | 580 | u8 keylen; |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 581 | u8 key[0]; |
| 582 | }; |
| 583 | |
Johannes Berg | 7ac1bd6 | 2007-09-14 11:10:25 -0400 | [diff] [blame] | 584 | /** |
| 585 | * enum set_key_cmd - key command |
| 586 | * |
| 587 | * Used with the set_key() callback in &struct ieee80211_ops, this |
| 588 | * indicates whether a key is being removed or added. |
| 589 | * |
| 590 | * @SET_KEY: a key is set |
| 591 | * @DISABLE_KEY: a key must be disabled |
| 592 | */ |
Johannes Berg | ea49c35 | 2007-09-18 17:29:21 -0400 | [diff] [blame] | 593 | enum set_key_cmd { |
Johannes Berg | 11a843b | 2007-08-28 17:01:55 -0400 | [diff] [blame] | 594 | SET_KEY, DISABLE_KEY, |
Johannes Berg | ea49c35 | 2007-09-18 17:29:21 -0400 | [diff] [blame] | 595 | }; |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 596 | |
Tomas Winkler | 478f8d2 | 2007-09-30 13:52:37 +0200 | [diff] [blame] | 597 | /** |
| 598 | * enum sta_notify_cmd - sta notify command |
| 599 | * |
| 600 | * Used with the sta_notify() callback in &struct ieee80211_ops, this |
| 601 | * indicates addition and removal of a station to station table |
| 602 | * |
| 603 | * @STA_NOTIFY_ADD: a station was added to the station table |
| 604 | * @STA_NOTIFY_REMOVE: a station being removed from the station table |
| 605 | */ |
| 606 | enum sta_notify_cmd { |
| 607 | STA_NOTIFY_ADD, STA_NOTIFY_REMOVE |
| 608 | }; |
Johannes Berg | 1bc0826 | 2007-09-18 17:29:15 -0400 | [diff] [blame] | 609 | |
| 610 | /** |
| 611 | * enum ieee80211_hw_flags - hardware flags |
| 612 | * |
| 613 | * These flags are used to indicate hardware capabilities to |
| 614 | * the stack. Generally, flags here should have their meaning |
| 615 | * done in a way that the simplest hardware doesn't need setting |
| 616 | * any particular flags. There are some exceptions to this rule, |
| 617 | * however, so you are advised to review these flags carefully. |
| 618 | * |
| 619 | * @IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE: |
| 620 | * The device only needs to be supplied with a beacon template. |
| 621 | * If you need the host to generate each beacon then don't use |
| 622 | * this flag and call ieee80211_beacon_get() when you need the |
| 623 | * next beacon frame. Note that if you set this flag, you must |
| 624 | * implement the set_tim() callback for powersave mode to work |
| 625 | * properly. |
| 626 | * This flag is only relevant for access-point mode. |
| 627 | * |
| 628 | * @IEEE80211_HW_RX_INCLUDES_FCS: |
| 629 | * Indicates that received frames passed to the stack include |
| 630 | * the FCS at the end. |
| 631 | * |
| 632 | * @IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING: |
| 633 | * Some wireless LAN chipsets buffer broadcast/multicast frames |
| 634 | * for power saving stations in the hardware/firmware and others |
| 635 | * rely on the host system for such buffering. This option is used |
| 636 | * to configure the IEEE 802.11 upper layer to buffer broadcast and |
| 637 | * multicast frames when there are power saving stations so that |
| 638 | * the driver can fetch them with ieee80211_get_buffered_bc(). Note |
| 639 | * that not setting this flag works properly only when the |
| 640 | * %IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE is also not set because |
| 641 | * otherwise the stack will not know when the DTIM beacon was sent. |
| 642 | * |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 643 | * @IEEE80211_HW_2GHZ_SHORT_SLOT_INCAPABLE: |
| 644 | * Hardware is not capable of short slot operation on the 2.4 GHz band. |
| 645 | * |
| 646 | * @IEEE80211_HW_2GHZ_SHORT_PREAMBLE_INCAPABLE: |
| 647 | * Hardware is not capable of receiving frames with short preamble on |
| 648 | * the 2.4 GHz band. |
Johannes Berg | 1bc0826 | 2007-09-18 17:29:15 -0400 | [diff] [blame] | 649 | */ |
| 650 | enum ieee80211_hw_flags { |
| 651 | IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE = 1<<0, |
| 652 | IEEE80211_HW_RX_INCLUDES_FCS = 1<<1, |
| 653 | IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING = 1<<2, |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 654 | IEEE80211_HW_2GHZ_SHORT_SLOT_INCAPABLE = 1<<3, |
| 655 | IEEE80211_HW_2GHZ_SHORT_PREAMBLE_INCAPABLE = 1<<4, |
Johannes Berg | 1bc0826 | 2007-09-18 17:29:15 -0400 | [diff] [blame] | 656 | }; |
| 657 | |
Johannes Berg | 7ac1bd6 | 2007-09-14 11:10:25 -0400 | [diff] [blame] | 658 | /** |
| 659 | * struct ieee80211_hw - hardware information and state |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 660 | * |
| 661 | * This structure contains the configuration and hardware |
| 662 | * information for an 802.11 PHY. |
| 663 | * |
| 664 | * @wiphy: This points to the &struct wiphy allocated for this |
| 665 | * 802.11 PHY. You must fill in the @perm_addr and @dev |
| 666 | * members of this structure using SET_IEEE80211_DEV() |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 667 | * and SET_IEEE80211_PERM_ADDR(). Additionally, all supported |
| 668 | * bands (with channels, bitrates) are registered here. |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 669 | * |
| 670 | * @conf: &struct ieee80211_conf, device configuration, don't use. |
| 671 | * |
| 672 | * @workqueue: single threaded workqueue available for driver use, |
| 673 | * allocated by mac80211 on registration and flushed on |
| 674 | * unregistration. |
| 675 | * |
| 676 | * @priv: pointer to private area that was allocated for driver use |
| 677 | * along with this structure. |
| 678 | * |
| 679 | * @flags: hardware flags, see &enum ieee80211_hw_flags. |
| 680 | * |
| 681 | * @extra_tx_headroom: headroom to reserve in each transmit skb |
| 682 | * for use by the driver (e.g. for transmit headers.) |
| 683 | * |
| 684 | * @channel_change_time: time (in microseconds) it takes to change channels. |
| 685 | * |
| 686 | * @max_rssi: Maximum value for ssi in RX information, use |
| 687 | * negative numbers for dBm and 0 to indicate no support. |
| 688 | * |
| 689 | * @max_signal: like @max_rssi, but for the signal value. |
| 690 | * |
| 691 | * @max_noise: like @max_rssi, but for the noise value. |
| 692 | * |
| 693 | * @queues: number of available hardware transmit queues for |
| 694 | * data packets. WMM/QoS requires at least four. |
Johannes Berg | 830f903 | 2007-10-28 14:51:05 +0100 | [diff] [blame] | 695 | * |
| 696 | * @rate_control_algorithm: rate control algorithm for this hardware. |
| 697 | * If unset (NULL), the default algorithm will be used. Must be |
| 698 | * set before calling ieee80211_register_hw(). |
Johannes Berg | 32bfd35 | 2007-12-19 01:31:26 +0100 | [diff] [blame] | 699 | * |
| 700 | * @vif_data_size: size (in bytes) of the drv_priv data area |
| 701 | * within &struct ieee80211_vif. |
Johannes Berg | 7ac1bd6 | 2007-09-14 11:10:25 -0400 | [diff] [blame] | 702 | */ |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 703 | struct ieee80211_hw { |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 704 | struct ieee80211_conf conf; |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 705 | struct wiphy *wiphy; |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 706 | struct workqueue_struct *workqueue; |
Johannes Berg | 830f903 | 2007-10-28 14:51:05 +0100 | [diff] [blame] | 707 | const char *rate_control_algorithm; |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 708 | void *priv; |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 709 | u32 flags; |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 710 | unsigned int extra_tx_headroom; |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 711 | int channel_change_time; |
Johannes Berg | 32bfd35 | 2007-12-19 01:31:26 +0100 | [diff] [blame] | 712 | int vif_data_size; |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 713 | u8 queues; |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 714 | s8 max_rssi; |
| 715 | s8 max_signal; |
| 716 | s8 max_noise; |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 717 | }; |
| 718 | |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 719 | /** |
| 720 | * SET_IEEE80211_DEV - set device for 802.11 hardware |
| 721 | * |
| 722 | * @hw: the &struct ieee80211_hw to set the device for |
| 723 | * @dev: the &struct device of this 802.11 device |
| 724 | */ |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 725 | static inline void SET_IEEE80211_DEV(struct ieee80211_hw *hw, struct device *dev) |
| 726 | { |
| 727 | set_wiphy_dev(hw->wiphy, dev); |
| 728 | } |
| 729 | |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 730 | /** |
| 731 | * SET_IEEE80211_PERM_ADDR - set the permanenet MAC address for 802.11 hardware |
| 732 | * |
| 733 | * @hw: the &struct ieee80211_hw to set the MAC address for |
| 734 | * @addr: the address to set |
| 735 | */ |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 736 | static inline void SET_IEEE80211_PERM_ADDR(struct ieee80211_hw *hw, u8 *addr) |
| 737 | { |
| 738 | memcpy(hw->wiphy->perm_addr, addr, ETH_ALEN); |
| 739 | } |
| 740 | |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 741 | /** |
| 742 | * DOC: Hardware crypto acceleration |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 743 | * |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 744 | * mac80211 is capable of taking advantage of many hardware |
| 745 | * acceleration designs for encryption and decryption operations. |
| 746 | * |
| 747 | * The set_key() callback in the &struct ieee80211_ops for a given |
| 748 | * device is called to enable hardware acceleration of encryption and |
| 749 | * decryption. The callback takes an @address parameter that will be |
| 750 | * the broadcast address for default keys, the other station's hardware |
| 751 | * address for individual keys or the zero address for keys that will |
| 752 | * be used only for transmission. |
| 753 | * Multiple transmission keys with the same key index may be used when |
| 754 | * VLANs are configured for an access point. |
| 755 | * |
| 756 | * The @local_address parameter will always be set to our own address, |
| 757 | * this is only relevant if you support multiple local addresses. |
| 758 | * |
| 759 | * When transmitting, the TX control data will use the @hw_key_idx |
| 760 | * selected by the driver by modifying the &struct ieee80211_key_conf |
| 761 | * pointed to by the @key parameter to the set_key() function. |
| 762 | * |
| 763 | * The set_key() call for the %SET_KEY command should return 0 if |
| 764 | * the key is now in use, -%EOPNOTSUPP or -%ENOSPC if it couldn't be |
| 765 | * added; if you return 0 then hw_key_idx must be assigned to the |
| 766 | * hardware key index, you are free to use the full u8 range. |
| 767 | * |
| 768 | * When the cmd is %DISABLE_KEY then it must succeed. |
| 769 | * |
| 770 | * Note that it is permissible to not decrypt a frame even if a key |
| 771 | * for it has been uploaded to hardware, the stack will not make any |
| 772 | * decision based on whether a key has been uploaded or not but rather |
| 773 | * based on the receive flags. |
| 774 | * |
| 775 | * The &struct ieee80211_key_conf structure pointed to by the @key |
| 776 | * parameter is guaranteed to be valid until another call to set_key() |
| 777 | * removes it, but it can only be used as a cookie to differentiate |
| 778 | * keys. |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 779 | */ |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 780 | |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 781 | /** |
| 782 | * DOC: Frame filtering |
| 783 | * |
| 784 | * mac80211 requires to see many management frames for proper |
| 785 | * operation, and users may want to see many more frames when |
| 786 | * in monitor mode. However, for best CPU usage and power consumption, |
| 787 | * having as few frames as possible percolate through the stack is |
| 788 | * desirable. Hence, the hardware should filter as much as possible. |
| 789 | * |
| 790 | * To achieve this, mac80211 uses filter flags (see below) to tell |
| 791 | * the driver's configure_filter() function which frames should be |
| 792 | * passed to mac80211 and which should be filtered out. |
| 793 | * |
| 794 | * The configure_filter() callback is invoked with the parameters |
| 795 | * @mc_count and @mc_list for the combined multicast address list |
| 796 | * of all virtual interfaces, @changed_flags telling which flags |
| 797 | * were changed and @total_flags with the new flag states. |
| 798 | * |
| 799 | * If your device has no multicast address filters your driver will |
| 800 | * need to check both the %FIF_ALLMULTI flag and the @mc_count |
| 801 | * parameter to see whether multicast frames should be accepted |
| 802 | * or dropped. |
| 803 | * |
Michael Buesch | d0f5afb | 2008-02-12 20:12:45 +0100 | [diff] [blame] | 804 | * All unsupported flags in @total_flags must be cleared. |
| 805 | * Hardware does not support a flag if it is incapable of _passing_ |
| 806 | * the frame to the stack. Otherwise the driver must ignore |
| 807 | * the flag, but not clear it. |
| 808 | * You must _only_ clear the flag (announce no support for the |
| 809 | * flag to mac80211) if you are not able to pass the packet type |
| 810 | * to the stack (so the hardware always filters it). |
| 811 | * So for example, you should clear @FIF_CONTROL, if your hardware |
| 812 | * always filters control frames. If your hardware always passes |
| 813 | * control frames to the kernel and is incapable of filtering them, |
| 814 | * you do _not_ clear the @FIF_CONTROL flag. |
| 815 | * This rule applies to all other FIF flags as well. |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 816 | */ |
| 817 | |
| 818 | /** |
| 819 | * enum ieee80211_filter_flags - hardware filter flags |
| 820 | * |
| 821 | * These flags determine what the filter in hardware should be |
| 822 | * programmed to let through and what should not be passed to the |
| 823 | * stack. It is always safe to pass more frames than requested, |
| 824 | * but this has negative impact on power consumption. |
| 825 | * |
| 826 | * @FIF_PROMISC_IN_BSS: promiscuous mode within your BSS, |
| 827 | * think of the BSS as your network segment and then this corresponds |
| 828 | * to the regular ethernet device promiscuous mode. |
| 829 | * |
| 830 | * @FIF_ALLMULTI: pass all multicast frames, this is used if requested |
| 831 | * by the user or if the hardware is not capable of filtering by |
| 832 | * multicast address. |
| 833 | * |
| 834 | * @FIF_FCSFAIL: pass frames with failed FCS (but you need to set the |
| 835 | * %RX_FLAG_FAILED_FCS_CRC for them) |
| 836 | * |
| 837 | * @FIF_PLCPFAIL: pass frames with failed PLCP CRC (but you need to set |
| 838 | * the %RX_FLAG_FAILED_PLCP_CRC for them |
| 839 | * |
| 840 | * @FIF_BCN_PRBRESP_PROMISC: This flag is set during scanning to indicate |
| 841 | * to the hardware that it should not filter beacons or probe responses |
| 842 | * by BSSID. Filtering them can greatly reduce the amount of processing |
| 843 | * mac80211 needs to do and the amount of CPU wakeups, so you should |
| 844 | * honour this flag if possible. |
| 845 | * |
| 846 | * @FIF_CONTROL: pass control frames, if PROMISC_IN_BSS is not set then |
| 847 | * only those addressed to this station |
| 848 | * |
| 849 | * @FIF_OTHER_BSS: pass frames destined to other BSSes |
| 850 | */ |
| 851 | enum ieee80211_filter_flags { |
| 852 | FIF_PROMISC_IN_BSS = 1<<0, |
| 853 | FIF_ALLMULTI = 1<<1, |
| 854 | FIF_FCSFAIL = 1<<2, |
| 855 | FIF_PLCPFAIL = 1<<3, |
| 856 | FIF_BCN_PRBRESP_PROMISC = 1<<4, |
| 857 | FIF_CONTROL = 1<<5, |
| 858 | FIF_OTHER_BSS = 1<<6, |
| 859 | }; |
| 860 | |
| 861 | /** |
Ron Rindjunsky | 1b7d03a | 2007-12-25 17:00:31 +0200 | [diff] [blame] | 862 | * enum ieee80211_ampdu_mlme_action - A-MPDU actions |
| 863 | * |
| 864 | * These flags are used with the ampdu_action() callback in |
| 865 | * &struct ieee80211_ops to indicate which action is needed. |
| 866 | * @IEEE80211_AMPDU_RX_START: start Rx aggregation |
| 867 | * @IEEE80211_AMPDU_RX_STOP: stop Rx aggregation |
Ron Rindjunsky | 0df3ef4 | 2008-01-28 14:07:15 +0200 | [diff] [blame] | 868 | * @IEEE80211_AMPDU_TX_START: start Tx aggregation |
| 869 | * @IEEE80211_AMPDU_TX_STOP: stop Tx aggregation |
Ron Rindjunsky | 1b7d03a | 2007-12-25 17:00:31 +0200 | [diff] [blame] | 870 | */ |
| 871 | enum ieee80211_ampdu_mlme_action { |
| 872 | IEEE80211_AMPDU_RX_START, |
| 873 | IEEE80211_AMPDU_RX_STOP, |
Ron Rindjunsky | 0df3ef4 | 2008-01-28 14:07:15 +0200 | [diff] [blame] | 874 | IEEE80211_AMPDU_TX_START, |
| 875 | IEEE80211_AMPDU_TX_STOP, |
Ron Rindjunsky | 1b7d03a | 2007-12-25 17:00:31 +0200 | [diff] [blame] | 876 | }; |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 877 | |
| 878 | /** |
| 879 | * struct ieee80211_ops - callbacks from mac80211 to the driver |
| 880 | * |
| 881 | * This structure contains various callbacks that the driver may |
| 882 | * handle or, in some cases, must handle, for example to configure |
| 883 | * the hardware to a new channel or to transmit a frame. |
| 884 | * |
| 885 | * @tx: Handler that 802.11 module calls for each transmitted frame. |
| 886 | * skb contains the buffer starting from the IEEE 802.11 header. |
| 887 | * The low-level driver should send the frame out based on |
| 888 | * configuration in the TX control data. Must be implemented and |
| 889 | * atomic. |
| 890 | * |
| 891 | * @start: Called before the first netdevice attached to the hardware |
| 892 | * is enabled. This should turn on the hardware and must turn on |
| 893 | * frame reception (for possibly enabled monitor interfaces.) |
| 894 | * Returns negative error codes, these may be seen in userspace, |
| 895 | * or zero. |
| 896 | * When the device is started it should not have a MAC address |
| 897 | * to avoid acknowledging frames before a non-monitor device |
| 898 | * is added. |
| 899 | * Must be implemented. |
| 900 | * |
| 901 | * @stop: Called after last netdevice attached to the hardware |
| 902 | * is disabled. This should turn off the hardware (at least |
| 903 | * it must turn off frame reception.) |
| 904 | * May be called right after add_interface if that rejects |
| 905 | * an interface. |
| 906 | * Must be implemented. |
| 907 | * |
| 908 | * @add_interface: Called when a netdevice attached to the hardware is |
| 909 | * enabled. Because it is not called for monitor mode devices, @open |
| 910 | * and @stop must be implemented. |
| 911 | * The driver should perform any initialization it needs before |
| 912 | * the device can be enabled. The initial configuration for the |
| 913 | * interface is given in the conf parameter. |
| 914 | * The callback may refuse to add an interface by returning a |
| 915 | * negative error code (which will be seen in userspace.) |
| 916 | * Must be implemented. |
| 917 | * |
| 918 | * @remove_interface: Notifies a driver that an interface is going down. |
| 919 | * The @stop callback is called after this if it is the last interface |
| 920 | * and no monitor interfaces are present. |
| 921 | * When all interfaces are removed, the MAC address in the hardware |
| 922 | * must be cleared so the device no longer acknowledges packets, |
| 923 | * the mac_addr member of the conf structure is, however, set to the |
| 924 | * MAC address of the device going away. |
| 925 | * Hence, this callback must be implemented. |
| 926 | * |
| 927 | * @config: Handler for configuration requests. IEEE 802.11 code calls this |
| 928 | * function to change hardware configuration, e.g., channel. |
| 929 | * |
| 930 | * @config_interface: Handler for configuration requests related to interfaces |
| 931 | * (e.g. BSSID changes.) |
| 932 | * |
Johannes Berg | 471b3ef | 2007-12-28 14:32:58 +0100 | [diff] [blame] | 933 | * @bss_info_changed: Handler for configuration requests related to BSS |
| 934 | * parameters that may vary during BSS's lifespan, and may affect low |
| 935 | * level driver (e.g. assoc/disassoc status, erp parameters). |
| 936 | * This function should not be used if no BSS has been set, unless |
| 937 | * for association indication. The @changed parameter indicates which |
| 938 | * of the bss parameters has changed when a call is made. This callback |
| 939 | * has to be atomic. |
| 940 | * |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 941 | * @configure_filter: Configure the device's RX filter. |
| 942 | * See the section "Frame filtering" for more information. |
| 943 | * This callback must be implemented and atomic. |
| 944 | * |
| 945 | * @set_tim: Set TIM bit. If the hardware/firmware takes care of beacon |
| 946 | * generation (that is, %IEEE80211_HW_HOST_GEN_BEACON_TEMPLATE is set) |
| 947 | * mac80211 calls this function when a TIM bit must be set or cleared |
| 948 | * for a given AID. Must be atomic. |
| 949 | * |
| 950 | * @set_key: See the section "Hardware crypto acceleration" |
| 951 | * This callback can sleep, and is only called between add_interface |
| 952 | * and remove_interface calls, i.e. while the interface with the |
| 953 | * given local_address is enabled. |
| 954 | * |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 955 | * @hw_scan: Ask the hardware to service the scan request, no need to start |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 956 | * the scan state machine in stack. The scan must honour the channel |
| 957 | * configuration done by the regulatory agent in the wiphy's registered |
| 958 | * bands. |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 959 | * |
| 960 | * @get_stats: return low-level statistics |
| 961 | * |
Johannes Berg | 62da92f | 2007-12-19 02:03:31 +0100 | [diff] [blame] | 962 | * @get_tkip_seq: If your device implements TKIP encryption in hardware this |
| 963 | * callback should be provided to read the TKIP transmit IVs (both IV32 |
| 964 | * and IV16) for the given key from hardware. |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 965 | * |
| 966 | * @set_rts_threshold: Configuration of RTS threshold (if device needs it) |
| 967 | * |
| 968 | * @set_frag_threshold: Configuration of fragmentation threshold. Assign this if |
| 969 | * the device does fragmentation by itself; if this method is assigned then |
| 970 | * the stack will not do fragmentation. |
| 971 | * |
| 972 | * @set_retry_limit: Configuration of retry limits (if device needs it) |
| 973 | * |
Tomas Winkler | 478f8d2 | 2007-09-30 13:52:37 +0200 | [diff] [blame] | 974 | * @sta_notify: Notifies low level driver about addition or removal |
| 975 | * of assocaited station or AP. |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 976 | * |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 977 | * @conf_tx: Configure TX queue parameters (EDCF (aifs, cw_min, cw_max), |
| 978 | * bursting) for a hardware TX queue. The @queue parameter uses the |
| 979 | * %IEEE80211_TX_QUEUE_* constants. Must be atomic. |
| 980 | * |
| 981 | * @get_tx_stats: Get statistics of the current TX queue status. This is used |
| 982 | * to get number of currently queued packets (queue length), maximum queue |
| 983 | * size (limit), and total number of packets sent using each TX queue |
| 984 | * (count). This information is used for WMM to find out which TX |
| 985 | * queues have room for more packets and by hostapd to provide |
| 986 | * statistics about the current queueing state to external programs. |
| 987 | * |
| 988 | * @get_tsf: Get the current TSF timer value from firmware/hardware. Currently, |
| 989 | * this is only used for IBSS mode debugging and, as such, is not a |
| 990 | * required function. Must be atomic. |
| 991 | * |
| 992 | * @reset_tsf: Reset the TSF timer and allow firmware/hardware to synchronize |
| 993 | * with other STAs in the IBSS. This is only used in IBSS mode. This |
| 994 | * function is optional if the firmware/hardware takes full care of |
| 995 | * TSF synchronization. |
| 996 | * |
| 997 | * @beacon_update: Setup beacon data for IBSS beacons. Unlike access point, |
| 998 | * IBSS uses a fixed beacon frame which is configured using this |
Michael Buesch | 5ecc2a5 | 2007-10-02 12:17:56 +0200 | [diff] [blame] | 999 | * function. |
| 1000 | * If the driver returns success (0) from this callback, it owns |
| 1001 | * the skb. That means the driver is responsible to kfree_skb() it. |
| 1002 | * The control structure is not dynamically allocated. That means the |
| 1003 | * driver does not own the pointer and if it needs it somewhere |
| 1004 | * outside of the context of this function, it must copy it |
| 1005 | * somewhere else. |
| 1006 | * This handler is required only for IBSS mode. |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 1007 | * |
| 1008 | * @tx_last_beacon: Determine whether the last IBSS beacon was sent by us. |
| 1009 | * This is needed only for IBSS mode and the result of this function is |
| 1010 | * used to determine whether to reply to Probe Requests. |
Ron Rindjunsky | d3c990f | 2007-11-26 16:14:34 +0200 | [diff] [blame] | 1011 | * |
| 1012 | * @conf_ht: Configures low level driver with 802.11n HT data. Must be atomic. |
Ron Rindjunsky | 1b7d03a | 2007-12-25 17:00:31 +0200 | [diff] [blame] | 1013 | * |
| 1014 | * @ampdu_action: Perform a certain A-MPDU action |
| 1015 | * The RA/TID combination determines the destination and TID we want |
| 1016 | * the ampdu action to be performed for. The action is defined through |
| 1017 | * ieee80211_ampdu_mlme_action. Starting sequence number (@ssn) |
Ron Rindjunsky | 0df3ef4 | 2008-01-28 14:07:15 +0200 | [diff] [blame] | 1018 | * is the first frame we expect to perform the action on. notice |
| 1019 | * that TX/RX_STOP can pass NULL for this parameter. |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 1020 | */ |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1021 | struct ieee80211_ops { |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1022 | int (*tx)(struct ieee80211_hw *hw, struct sk_buff *skb, |
| 1023 | struct ieee80211_tx_control *control); |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 1024 | int (*start)(struct ieee80211_hw *hw); |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 1025 | void (*stop)(struct ieee80211_hw *hw); |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1026 | int (*add_interface)(struct ieee80211_hw *hw, |
| 1027 | struct ieee80211_if_init_conf *conf); |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1028 | void (*remove_interface)(struct ieee80211_hw *hw, |
| 1029 | struct ieee80211_if_init_conf *conf); |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1030 | int (*config)(struct ieee80211_hw *hw, struct ieee80211_conf *conf); |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1031 | int (*config_interface)(struct ieee80211_hw *hw, |
Johannes Berg | 32bfd35 | 2007-12-19 01:31:26 +0100 | [diff] [blame] | 1032 | struct ieee80211_vif *vif, |
| 1033 | struct ieee80211_if_conf *conf); |
Johannes Berg | 471b3ef | 2007-12-28 14:32:58 +0100 | [diff] [blame] | 1034 | void (*bss_info_changed)(struct ieee80211_hw *hw, |
| 1035 | struct ieee80211_vif *vif, |
| 1036 | struct ieee80211_bss_conf *info, |
| 1037 | u32 changed); |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 1038 | void (*configure_filter)(struct ieee80211_hw *hw, |
| 1039 | unsigned int changed_flags, |
| 1040 | unsigned int *total_flags, |
| 1041 | int mc_count, struct dev_addr_list *mc_list); |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1042 | int (*set_tim)(struct ieee80211_hw *hw, int aid, int set); |
Johannes Berg | ea49c35 | 2007-09-18 17:29:21 -0400 | [diff] [blame] | 1043 | int (*set_key)(struct ieee80211_hw *hw, enum set_key_cmd cmd, |
Johannes Berg | 11a843b | 2007-08-28 17:01:55 -0400 | [diff] [blame] | 1044 | const u8 *local_address, const u8 *address, |
| 1045 | struct ieee80211_key_conf *key); |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1046 | int (*hw_scan)(struct ieee80211_hw *hw, u8 *ssid, size_t len); |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1047 | int (*get_stats)(struct ieee80211_hw *hw, |
| 1048 | struct ieee80211_low_level_stats *stats); |
Johannes Berg | 62da92f | 2007-12-19 02:03:31 +0100 | [diff] [blame] | 1049 | void (*get_tkip_seq)(struct ieee80211_hw *hw, u8 hw_key_idx, |
| 1050 | u32 *iv32, u16 *iv16); |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1051 | int (*set_rts_threshold)(struct ieee80211_hw *hw, u32 value); |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1052 | int (*set_frag_threshold)(struct ieee80211_hw *hw, u32 value); |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1053 | int (*set_retry_limit)(struct ieee80211_hw *hw, |
| 1054 | u32 short_retry, u32 long_retr); |
Johannes Berg | 32bfd35 | 2007-12-19 01:31:26 +0100 | [diff] [blame] | 1055 | void (*sta_notify)(struct ieee80211_hw *hw, struct ieee80211_vif *vif, |
Tomas Winkler | 478f8d2 | 2007-09-30 13:52:37 +0200 | [diff] [blame] | 1056 | enum sta_notify_cmd, const u8 *addr); |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1057 | int (*conf_tx)(struct ieee80211_hw *hw, int queue, |
| 1058 | const struct ieee80211_tx_queue_params *params); |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1059 | int (*get_tx_stats)(struct ieee80211_hw *hw, |
| 1060 | struct ieee80211_tx_queue_stats *stats); |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1061 | u64 (*get_tsf)(struct ieee80211_hw *hw); |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1062 | void (*reset_tsf)(struct ieee80211_hw *hw); |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1063 | int (*beacon_update)(struct ieee80211_hw *hw, |
| 1064 | struct sk_buff *skb, |
| 1065 | struct ieee80211_tx_control *control); |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1066 | int (*tx_last_beacon)(struct ieee80211_hw *hw); |
Ron Rindjunsky | d3c990f | 2007-11-26 16:14:34 +0200 | [diff] [blame] | 1067 | int (*conf_ht)(struct ieee80211_hw *hw, struct ieee80211_conf *conf); |
Ron Rindjunsky | 1b7d03a | 2007-12-25 17:00:31 +0200 | [diff] [blame] | 1068 | int (*ampdu_action)(struct ieee80211_hw *hw, |
| 1069 | enum ieee80211_ampdu_mlme_action action, |
Ron Rindjunsky | 0df3ef4 | 2008-01-28 14:07:15 +0200 | [diff] [blame] | 1070 | const u8 *addr, u16 tid, u16 *ssn); |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1071 | }; |
| 1072 | |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 1073 | /** |
| 1074 | * ieee80211_alloc_hw - Allocate a new hardware device |
| 1075 | * |
| 1076 | * This must be called once for each hardware device. The returned pointer |
| 1077 | * must be used to refer to this device when calling other functions. |
| 1078 | * mac80211 allocates a private data area for the driver pointed to by |
| 1079 | * @priv in &struct ieee80211_hw, the size of this area is given as |
| 1080 | * @priv_data_len. |
| 1081 | * |
| 1082 | * @priv_data_len: length of private data |
| 1083 | * @ops: callbacks for this device |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1084 | */ |
| 1085 | struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len, |
| 1086 | const struct ieee80211_ops *ops); |
| 1087 | |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 1088 | /** |
| 1089 | * ieee80211_register_hw - Register hardware device |
| 1090 | * |
| 1091 | * You must call this function before any other functions |
| 1092 | * except ieee80211_register_hwmode. |
| 1093 | * |
| 1094 | * @hw: the device to register as returned by ieee80211_alloc_hw() |
| 1095 | */ |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1096 | int ieee80211_register_hw(struct ieee80211_hw *hw); |
| 1097 | |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1098 | #ifdef CONFIG_MAC80211_LEDS |
| 1099 | extern char *__ieee80211_get_tx_led_name(struct ieee80211_hw *hw); |
| 1100 | extern char *__ieee80211_get_rx_led_name(struct ieee80211_hw *hw); |
Michael Buesch | 47f0c50 | 2007-09-27 15:10:44 +0200 | [diff] [blame] | 1101 | extern char *__ieee80211_get_assoc_led_name(struct ieee80211_hw *hw); |
Ivo van Doorn | cdcb006 | 2008-01-07 19:45:24 +0100 | [diff] [blame] | 1102 | extern char *__ieee80211_get_radio_led_name(struct ieee80211_hw *hw); |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1103 | #endif |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 1104 | /** |
| 1105 | * ieee80211_get_tx_led_name - get name of TX LED |
| 1106 | * |
| 1107 | * mac80211 creates a transmit LED trigger for each wireless hardware |
| 1108 | * that can be used to drive LEDs if your driver registers a LED device. |
| 1109 | * This function returns the name (or %NULL if not configured for LEDs) |
| 1110 | * of the trigger so you can automatically link the LED device. |
| 1111 | * |
| 1112 | * @hw: the hardware to get the LED trigger name for |
| 1113 | */ |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1114 | static inline char *ieee80211_get_tx_led_name(struct ieee80211_hw *hw) |
| 1115 | { |
| 1116 | #ifdef CONFIG_MAC80211_LEDS |
| 1117 | return __ieee80211_get_tx_led_name(hw); |
| 1118 | #else |
| 1119 | return NULL; |
| 1120 | #endif |
| 1121 | } |
| 1122 | |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 1123 | /** |
| 1124 | * ieee80211_get_rx_led_name - get name of RX LED |
| 1125 | * |
| 1126 | * mac80211 creates a receive LED trigger for each wireless hardware |
| 1127 | * that can be used to drive LEDs if your driver registers a LED device. |
| 1128 | * This function returns the name (or %NULL if not configured for LEDs) |
| 1129 | * of the trigger so you can automatically link the LED device. |
| 1130 | * |
| 1131 | * @hw: the hardware to get the LED trigger name for |
| 1132 | */ |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1133 | static inline char *ieee80211_get_rx_led_name(struct ieee80211_hw *hw) |
| 1134 | { |
| 1135 | #ifdef CONFIG_MAC80211_LEDS |
| 1136 | return __ieee80211_get_rx_led_name(hw); |
| 1137 | #else |
| 1138 | return NULL; |
| 1139 | #endif |
| 1140 | } |
| 1141 | |
Ivo van Doorn | cdcb006 | 2008-01-07 19:45:24 +0100 | [diff] [blame] | 1142 | /** |
| 1143 | * ieee80211_get_assoc_led_name - get name of association LED |
| 1144 | * |
| 1145 | * mac80211 creates a association LED trigger for each wireless hardware |
| 1146 | * that can be used to drive LEDs if your driver registers a LED device. |
| 1147 | * This function returns the name (or %NULL if not configured for LEDs) |
| 1148 | * of the trigger so you can automatically link the LED device. |
| 1149 | * |
| 1150 | * @hw: the hardware to get the LED trigger name for |
| 1151 | */ |
Michael Buesch | 47f0c50 | 2007-09-27 15:10:44 +0200 | [diff] [blame] | 1152 | static inline char *ieee80211_get_assoc_led_name(struct ieee80211_hw *hw) |
| 1153 | { |
| 1154 | #ifdef CONFIG_MAC80211_LEDS |
| 1155 | return __ieee80211_get_assoc_led_name(hw); |
| 1156 | #else |
| 1157 | return NULL; |
| 1158 | #endif |
| 1159 | } |
| 1160 | |
Ivo van Doorn | cdcb006 | 2008-01-07 19:45:24 +0100 | [diff] [blame] | 1161 | /** |
| 1162 | * ieee80211_get_radio_led_name - get name of radio LED |
| 1163 | * |
| 1164 | * mac80211 creates a radio change LED trigger for each wireless hardware |
| 1165 | * that can be used to drive LEDs if your driver registers a LED device. |
| 1166 | * This function returns the name (or %NULL if not configured for LEDs) |
| 1167 | * of the trigger so you can automatically link the LED device. |
| 1168 | * |
| 1169 | * @hw: the hardware to get the LED trigger name for |
| 1170 | */ |
| 1171 | static inline char *ieee80211_get_radio_led_name(struct ieee80211_hw *hw) |
| 1172 | { |
| 1173 | #ifdef CONFIG_MAC80211_LEDS |
| 1174 | return __ieee80211_get_radio_led_name(hw); |
| 1175 | #else |
| 1176 | return NULL; |
| 1177 | #endif |
| 1178 | } |
Michael Buesch | 47f0c50 | 2007-09-27 15:10:44 +0200 | [diff] [blame] | 1179 | |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 1180 | /** |
| 1181 | * ieee80211_unregister_hw - Unregister a hardware device |
| 1182 | * |
| 1183 | * This function instructs mac80211 to free allocated resources |
| 1184 | * and unregister netdevices from the networking subsystem. |
| 1185 | * |
| 1186 | * @hw: the hardware to unregister |
| 1187 | */ |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1188 | void ieee80211_unregister_hw(struct ieee80211_hw *hw); |
| 1189 | |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 1190 | /** |
| 1191 | * ieee80211_free_hw - free hardware descriptor |
| 1192 | * |
| 1193 | * This function frees everything that was allocated, including the |
| 1194 | * private data for the driver. You must call ieee80211_unregister_hw() |
| 1195 | * before calling this function |
| 1196 | * |
| 1197 | * @hw: the hardware to free |
| 1198 | */ |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1199 | void ieee80211_free_hw(struct ieee80211_hw *hw); |
| 1200 | |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 1201 | /* trick to avoid symbol clashes with the ieee80211 subsystem */ |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1202 | void __ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb, |
| 1203 | struct ieee80211_rx_status *status); |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 1204 | |
| 1205 | /** |
| 1206 | * ieee80211_rx - receive frame |
| 1207 | * |
| 1208 | * Use this function to hand received frames to mac80211. The receive |
| 1209 | * buffer in @skb must start with an IEEE 802.11 header or a radiotap |
| 1210 | * header if %RX_FLAG_RADIOTAP is set in the @status flags. |
| 1211 | * |
Johannes Berg | 2485f71 | 2008-02-25 16:27:41 +0100 | [diff] [blame] | 1212 | * This function may not be called in IRQ context. Calls to this function |
| 1213 | * for a single hardware must be synchronized against each other. Calls |
| 1214 | * to this function and ieee80211_rx_irqsafe() may not be mixed for a |
| 1215 | * single hardware. |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 1216 | * |
| 1217 | * @hw: the hardware this frame came in on |
| 1218 | * @skb: the buffer to receive, owned by mac80211 after this call |
| 1219 | * @status: status of this frame; the status pointer need not be valid |
| 1220 | * after this function returns |
| 1221 | */ |
| 1222 | static inline void ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb, |
| 1223 | struct ieee80211_rx_status *status) |
| 1224 | { |
| 1225 | __ieee80211_rx(hw, skb, status); |
| 1226 | } |
| 1227 | |
| 1228 | /** |
| 1229 | * ieee80211_rx_irqsafe - receive frame |
| 1230 | * |
| 1231 | * Like ieee80211_rx() but can be called in IRQ context |
Johannes Berg | 2485f71 | 2008-02-25 16:27:41 +0100 | [diff] [blame] | 1232 | * (internally defers to a tasklet.) |
| 1233 | * |
| 1234 | * Calls to this function and ieee80211_rx() may not be mixed for a |
| 1235 | * single hardware. |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 1236 | * |
| 1237 | * @hw: the hardware this frame came in on |
| 1238 | * @skb: the buffer to receive, owned by mac80211 after this call |
| 1239 | * @status: status of this frame; the status pointer need not be valid |
| 1240 | * after this function returns and is not freed by mac80211, |
| 1241 | * it is recommended that it points to a stack area |
| 1242 | */ |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1243 | void ieee80211_rx_irqsafe(struct ieee80211_hw *hw, |
| 1244 | struct sk_buff *skb, |
| 1245 | struct ieee80211_rx_status *status); |
| 1246 | |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 1247 | /** |
| 1248 | * ieee80211_tx_status - transmit status callback |
| 1249 | * |
| 1250 | * Call this function for all transmitted frames after they have been |
| 1251 | * transmitted. It is permissible to not call this function for |
| 1252 | * multicast frames but this can affect statistics. |
| 1253 | * |
Johannes Berg | 2485f71 | 2008-02-25 16:27:41 +0100 | [diff] [blame] | 1254 | * This function may not be called in IRQ context. Calls to this function |
| 1255 | * for a single hardware must be synchronized against each other. Calls |
| 1256 | * to this function and ieee80211_tx_status_irqsafe() may not be mixed |
| 1257 | * for a single hardware. |
| 1258 | * |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 1259 | * @hw: the hardware the frame was transmitted by |
| 1260 | * @skb: the frame that was transmitted, owned by mac80211 after this call |
| 1261 | * @status: status information for this frame; the status pointer need not |
| 1262 | * be valid after this function returns and is not freed by mac80211, |
| 1263 | * it is recommended that it points to a stack area |
| 1264 | */ |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1265 | void ieee80211_tx_status(struct ieee80211_hw *hw, |
| 1266 | struct sk_buff *skb, |
| 1267 | struct ieee80211_tx_status *status); |
Johannes Berg | 2485f71 | 2008-02-25 16:27:41 +0100 | [diff] [blame] | 1268 | |
| 1269 | /** |
| 1270 | * ieee80211_tx_status_irqsafe - irq-safe transmit status callback |
| 1271 | * |
| 1272 | * Like ieee80211_tx_status() but can be called in IRQ context |
| 1273 | * (internally defers to a tasklet.) |
| 1274 | * |
| 1275 | * Calls to this function and ieee80211_tx_status() may not be mixed for a |
| 1276 | * single hardware. |
| 1277 | * |
| 1278 | * @hw: the hardware the frame was transmitted by |
| 1279 | * @skb: the frame that was transmitted, owned by mac80211 after this call |
| 1280 | * @status: status information for this frame; the status pointer need not |
| 1281 | * be valid after this function returns and is not freed by mac80211, |
| 1282 | * it is recommended that it points to a stack area |
| 1283 | */ |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1284 | void ieee80211_tx_status_irqsafe(struct ieee80211_hw *hw, |
| 1285 | struct sk_buff *skb, |
| 1286 | struct ieee80211_tx_status *status); |
| 1287 | |
| 1288 | /** |
| 1289 | * ieee80211_beacon_get - beacon generation function |
| 1290 | * @hw: pointer obtained from ieee80211_alloc_hw(). |
Johannes Berg | 32bfd35 | 2007-12-19 01:31:26 +0100 | [diff] [blame] | 1291 | * @vif: &struct ieee80211_vif pointer from &struct ieee80211_if_init_conf. |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1292 | * @control: will be filled with information needed to send this beacon. |
| 1293 | * |
| 1294 | * If the beacon frames are generated by the host system (i.e., not in |
| 1295 | * hardware/firmware), the low-level driver uses this function to receive |
| 1296 | * the next beacon frame from the 802.11 code. The low-level is responsible |
| 1297 | * for calling this function before beacon data is needed (e.g., based on |
| 1298 | * hardware interrupt). Returned skb is used only once and low-level driver |
| 1299 | * is responsible of freeing it. |
| 1300 | */ |
| 1301 | struct sk_buff *ieee80211_beacon_get(struct ieee80211_hw *hw, |
Johannes Berg | 32bfd35 | 2007-12-19 01:31:26 +0100 | [diff] [blame] | 1302 | struct ieee80211_vif *vif, |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1303 | struct ieee80211_tx_control *control); |
| 1304 | |
| 1305 | /** |
| 1306 | * ieee80211_rts_get - RTS frame generation function |
| 1307 | * @hw: pointer obtained from ieee80211_alloc_hw(). |
Johannes Berg | 32bfd35 | 2007-12-19 01:31:26 +0100 | [diff] [blame] | 1308 | * @vif: &struct ieee80211_vif pointer from &struct ieee80211_if_init_conf. |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1309 | * @frame: pointer to the frame that is going to be protected by the RTS. |
| 1310 | * @frame_len: the frame length (in octets). |
| 1311 | * @frame_txctl: &struct ieee80211_tx_control of the frame. |
| 1312 | * @rts: The buffer where to store the RTS frame. |
| 1313 | * |
| 1314 | * If the RTS frames are generated by the host system (i.e., not in |
| 1315 | * hardware/firmware), the low-level driver uses this function to receive |
| 1316 | * the next RTS frame from the 802.11 code. The low-level is responsible |
| 1317 | * for calling this function before and RTS frame is needed. |
| 1318 | */ |
Johannes Berg | 32bfd35 | 2007-12-19 01:31:26 +0100 | [diff] [blame] | 1319 | void ieee80211_rts_get(struct ieee80211_hw *hw, struct ieee80211_vif *vif, |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1320 | const void *frame, size_t frame_len, |
| 1321 | const struct ieee80211_tx_control *frame_txctl, |
| 1322 | struct ieee80211_rts *rts); |
| 1323 | |
| 1324 | /** |
| 1325 | * ieee80211_rts_duration - Get the duration field for an RTS frame |
| 1326 | * @hw: pointer obtained from ieee80211_alloc_hw(). |
Johannes Berg | 32bfd35 | 2007-12-19 01:31:26 +0100 | [diff] [blame] | 1327 | * @vif: &struct ieee80211_vif pointer from &struct ieee80211_if_init_conf. |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1328 | * @frame_len: the length of the frame that is going to be protected by the RTS. |
| 1329 | * @frame_txctl: &struct ieee80211_tx_control of the frame. |
| 1330 | * |
| 1331 | * If the RTS is generated in firmware, but the host system must provide |
| 1332 | * the duration field, the low-level driver uses this function to receive |
| 1333 | * the duration field value in little-endian byteorder. |
| 1334 | */ |
Johannes Berg | 32bfd35 | 2007-12-19 01:31:26 +0100 | [diff] [blame] | 1335 | __le16 ieee80211_rts_duration(struct ieee80211_hw *hw, |
| 1336 | struct ieee80211_vif *vif, size_t frame_len, |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1337 | const struct ieee80211_tx_control *frame_txctl); |
| 1338 | |
| 1339 | /** |
| 1340 | * ieee80211_ctstoself_get - CTS-to-self frame generation function |
| 1341 | * @hw: pointer obtained from ieee80211_alloc_hw(). |
Johannes Berg | 32bfd35 | 2007-12-19 01:31:26 +0100 | [diff] [blame] | 1342 | * @vif: &struct ieee80211_vif pointer from &struct ieee80211_if_init_conf. |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1343 | * @frame: pointer to the frame that is going to be protected by the CTS-to-self. |
| 1344 | * @frame_len: the frame length (in octets). |
| 1345 | * @frame_txctl: &struct ieee80211_tx_control of the frame. |
| 1346 | * @cts: The buffer where to store the CTS-to-self frame. |
| 1347 | * |
| 1348 | * If the CTS-to-self frames are generated by the host system (i.e., not in |
| 1349 | * hardware/firmware), the low-level driver uses this function to receive |
| 1350 | * the next CTS-to-self frame from the 802.11 code. The low-level is responsible |
| 1351 | * for calling this function before and CTS-to-self frame is needed. |
| 1352 | */ |
Johannes Berg | 32bfd35 | 2007-12-19 01:31:26 +0100 | [diff] [blame] | 1353 | void ieee80211_ctstoself_get(struct ieee80211_hw *hw, |
| 1354 | struct ieee80211_vif *vif, |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1355 | const void *frame, size_t frame_len, |
| 1356 | const struct ieee80211_tx_control *frame_txctl, |
| 1357 | struct ieee80211_cts *cts); |
| 1358 | |
| 1359 | /** |
| 1360 | * ieee80211_ctstoself_duration - Get the duration field for a CTS-to-self frame |
| 1361 | * @hw: pointer obtained from ieee80211_alloc_hw(). |
Johannes Berg | 32bfd35 | 2007-12-19 01:31:26 +0100 | [diff] [blame] | 1362 | * @vif: &struct ieee80211_vif pointer from &struct ieee80211_if_init_conf. |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1363 | * @frame_len: the length of the frame that is going to be protected by the CTS-to-self. |
| 1364 | * @frame_txctl: &struct ieee80211_tx_control of the frame. |
| 1365 | * |
| 1366 | * If the CTS-to-self is generated in firmware, but the host system must provide |
| 1367 | * the duration field, the low-level driver uses this function to receive |
| 1368 | * the duration field value in little-endian byteorder. |
| 1369 | */ |
Johannes Berg | 32bfd35 | 2007-12-19 01:31:26 +0100 | [diff] [blame] | 1370 | __le16 ieee80211_ctstoself_duration(struct ieee80211_hw *hw, |
| 1371 | struct ieee80211_vif *vif, |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1372 | size_t frame_len, |
| 1373 | const struct ieee80211_tx_control *frame_txctl); |
| 1374 | |
| 1375 | /** |
| 1376 | * ieee80211_generic_frame_duration - Calculate the duration field for a frame |
| 1377 | * @hw: pointer obtained from ieee80211_alloc_hw(). |
Johannes Berg | 32bfd35 | 2007-12-19 01:31:26 +0100 | [diff] [blame] | 1378 | * @vif: &struct ieee80211_vif pointer from &struct ieee80211_if_init_conf. |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1379 | * @frame_len: the length of the frame. |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 1380 | * @rate: the rate at which the frame is going to be transmitted. |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1381 | * |
| 1382 | * Calculate the duration field of some generic frame, given its |
| 1383 | * length and transmission rate (in 100kbps). |
| 1384 | */ |
Johannes Berg | 32bfd35 | 2007-12-19 01:31:26 +0100 | [diff] [blame] | 1385 | __le16 ieee80211_generic_frame_duration(struct ieee80211_hw *hw, |
| 1386 | struct ieee80211_vif *vif, |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1387 | size_t frame_len, |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 1388 | struct ieee80211_rate *rate); |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1389 | |
| 1390 | /** |
| 1391 | * ieee80211_get_buffered_bc - accessing buffered broadcast and multicast frames |
| 1392 | * @hw: pointer as obtained from ieee80211_alloc_hw(). |
Johannes Berg | 32bfd35 | 2007-12-19 01:31:26 +0100 | [diff] [blame] | 1393 | * @vif: &struct ieee80211_vif pointer from &struct ieee80211_if_init_conf. |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1394 | * @control: will be filled with information needed to send returned frame. |
| 1395 | * |
| 1396 | * Function for accessing buffered broadcast and multicast frames. If |
| 1397 | * hardware/firmware does not implement buffering of broadcast/multicast |
| 1398 | * frames when power saving is used, 802.11 code buffers them in the host |
| 1399 | * memory. The low-level driver uses this function to fetch next buffered |
| 1400 | * frame. In most cases, this is used when generating beacon frame. This |
| 1401 | * function returns a pointer to the next buffered skb or NULL if no more |
| 1402 | * buffered frames are available. |
| 1403 | * |
| 1404 | * Note: buffered frames are returned only after DTIM beacon frame was |
| 1405 | * generated with ieee80211_beacon_get() and the low-level driver must thus |
| 1406 | * call ieee80211_beacon_get() first. ieee80211_get_buffered_bc() returns |
| 1407 | * NULL if the previous generated beacon was not DTIM, so the low-level driver |
| 1408 | * does not need to check for DTIM beacons separately and should be able to |
| 1409 | * use common code for all beacons. |
| 1410 | */ |
| 1411 | struct sk_buff * |
Johannes Berg | 32bfd35 | 2007-12-19 01:31:26 +0100 | [diff] [blame] | 1412 | ieee80211_get_buffered_bc(struct ieee80211_hw *hw, struct ieee80211_vif *vif, |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1413 | struct ieee80211_tx_control *control); |
| 1414 | |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 1415 | /** |
| 1416 | * ieee80211_get_hdrlen_from_skb - get header length from data |
| 1417 | * |
| 1418 | * Given an skb with a raw 802.11 header at the data pointer this function |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1419 | * returns the 802.11 header length in bytes (not including encryption |
| 1420 | * headers). If the data in the sk_buff is too short to contain a valid 802.11 |
| 1421 | * header the function returns 0. |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 1422 | * |
| 1423 | * @skb: the frame |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1424 | */ |
| 1425 | int ieee80211_get_hdrlen_from_skb(const struct sk_buff *skb); |
| 1426 | |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 1427 | /** |
| 1428 | * ieee80211_get_hdrlen - get header length from frame control |
| 1429 | * |
| 1430 | * This function returns the 802.11 header length in bytes (not including |
| 1431 | * encryption headers.) |
| 1432 | * |
| 1433 | * @fc: the frame control field (in CPU endianness) |
| 1434 | */ |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1435 | int ieee80211_get_hdrlen(u16 fc); |
| 1436 | |
| 1437 | /** |
| 1438 | * ieee80211_wake_queue - wake specific queue |
| 1439 | * @hw: pointer as obtained from ieee80211_alloc_hw(). |
| 1440 | * @queue: queue number (counted from zero). |
| 1441 | * |
| 1442 | * Drivers should use this function instead of netif_wake_queue. |
| 1443 | */ |
| 1444 | void ieee80211_wake_queue(struct ieee80211_hw *hw, int queue); |
| 1445 | |
| 1446 | /** |
| 1447 | * ieee80211_stop_queue - stop specific queue |
| 1448 | * @hw: pointer as obtained from ieee80211_alloc_hw(). |
| 1449 | * @queue: queue number (counted from zero). |
| 1450 | * |
| 1451 | * Drivers should use this function instead of netif_stop_queue. |
| 1452 | */ |
| 1453 | void ieee80211_stop_queue(struct ieee80211_hw *hw, int queue); |
| 1454 | |
| 1455 | /** |
| 1456 | * ieee80211_start_queues - start all queues |
| 1457 | * @hw: pointer to as obtained from ieee80211_alloc_hw(). |
| 1458 | * |
| 1459 | * Drivers should use this function instead of netif_start_queue. |
| 1460 | */ |
| 1461 | void ieee80211_start_queues(struct ieee80211_hw *hw); |
| 1462 | |
| 1463 | /** |
| 1464 | * ieee80211_stop_queues - stop all queues |
| 1465 | * @hw: pointer as obtained from ieee80211_alloc_hw(). |
| 1466 | * |
| 1467 | * Drivers should use this function instead of netif_stop_queue. |
| 1468 | */ |
| 1469 | void ieee80211_stop_queues(struct ieee80211_hw *hw); |
| 1470 | |
| 1471 | /** |
| 1472 | * ieee80211_wake_queues - wake all queues |
| 1473 | * @hw: pointer as obtained from ieee80211_alloc_hw(). |
| 1474 | * |
| 1475 | * Drivers should use this function instead of netif_wake_queue. |
| 1476 | */ |
| 1477 | void ieee80211_wake_queues(struct ieee80211_hw *hw); |
| 1478 | |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 1479 | /** |
| 1480 | * ieee80211_scan_completed - completed hardware scan |
| 1481 | * |
| 1482 | * When hardware scan offload is used (i.e. the hw_scan() callback is |
| 1483 | * assigned) this function needs to be called by the driver to notify |
| 1484 | * mac80211 that the scan finished. |
| 1485 | * |
| 1486 | * @hw: the hardware that finished the scan |
| 1487 | */ |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1488 | void ieee80211_scan_completed(struct ieee80211_hw *hw); |
| 1489 | |
Johannes Berg | dabeb34 | 2007-11-09 01:57:29 +0100 | [diff] [blame] | 1490 | /** |
| 1491 | * ieee80211_iterate_active_interfaces - iterate active interfaces |
| 1492 | * |
| 1493 | * This function iterates over the interfaces associated with a given |
| 1494 | * hardware that are currently active and calls the callback for them. |
Johannes Berg | dabeb34 | 2007-11-09 01:57:29 +0100 | [diff] [blame] | 1495 | * |
| 1496 | * @hw: the hardware struct of which the interfaces should be iterated over |
Johannes Berg | e38bad4 | 2007-11-28 10:55:32 +0100 | [diff] [blame] | 1497 | * @iterator: the iterator function to call, cannot sleep |
Johannes Berg | dabeb34 | 2007-11-09 01:57:29 +0100 | [diff] [blame] | 1498 | * @data: first argument of the iterator function |
| 1499 | */ |
| 1500 | void ieee80211_iterate_active_interfaces(struct ieee80211_hw *hw, |
| 1501 | void (*iterator)(void *data, u8 *mac, |
Johannes Berg | 32bfd35 | 2007-12-19 01:31:26 +0100 | [diff] [blame] | 1502 | struct ieee80211_vif *vif), |
Johannes Berg | dabeb34 | 2007-11-09 01:57:29 +0100 | [diff] [blame] | 1503 | void *data); |
| 1504 | |
Ron Rindjunsky | 0df3ef4 | 2008-01-28 14:07:15 +0200 | [diff] [blame] | 1505 | /** |
| 1506 | * ieee80211_start_tx_ba_session - Start a tx Block Ack session. |
| 1507 | * @hw: pointer as obtained from ieee80211_alloc_hw(). |
| 1508 | * @ra: receiver address of the BA session recipient |
| 1509 | * @tid: the TID to BA on. |
| 1510 | * @return: success if addBA request was sent, failure otherwise |
| 1511 | * |
| 1512 | * Although mac80211/low level driver/user space application can estimate |
| 1513 | * the need to start aggregation on a certain RA/TID, the session level |
| 1514 | * will be managed by the mac80211. |
| 1515 | */ |
| 1516 | int ieee80211_start_tx_ba_session(struct ieee80211_hw *hw, u8 *ra, u16 tid); |
| 1517 | |
| 1518 | /** |
| 1519 | * ieee80211_start_tx_ba_cb - low level driver ready to aggregate. |
| 1520 | * @hw: pointer as obtained from ieee80211_alloc_hw(). |
| 1521 | * @ra: receiver address of the BA session recipient. |
| 1522 | * @tid: the TID to BA on. |
| 1523 | * |
| 1524 | * This function must be called by low level driver once it has |
| 1525 | * finished with preparations for the BA session. |
| 1526 | */ |
| 1527 | void ieee80211_start_tx_ba_cb(struct ieee80211_hw *hw, u8 *ra, u16 tid); |
| 1528 | |
| 1529 | /** |
| 1530 | * ieee80211_start_tx_ba_cb_irqsafe - low level driver ready to aggregate. |
| 1531 | * @hw: pointer as obtained from ieee80211_alloc_hw(). |
| 1532 | * @ra: receiver address of the BA session recipient. |
| 1533 | * @tid: the TID to BA on. |
| 1534 | * |
| 1535 | * This function must be called by low level driver once it has |
| 1536 | * finished with preparations for the BA session. |
| 1537 | * This version of the function is irq safe. |
| 1538 | */ |
| 1539 | void ieee80211_start_tx_ba_cb_irqsafe(struct ieee80211_hw *hw, const u8 *ra, |
| 1540 | u16 tid); |
| 1541 | |
| 1542 | /** |
| 1543 | * ieee80211_stop_tx_ba_session - Stop a Block Ack session. |
| 1544 | * @hw: pointer as obtained from ieee80211_alloc_hw(). |
| 1545 | * @ra: receiver address of the BA session recipient |
| 1546 | * @tid: the TID to stop BA. |
| 1547 | * @initiator: if indicates initiator DELBA frame will be sent. |
| 1548 | * @return: error if no sta with matching da found, success otherwise |
| 1549 | * |
| 1550 | * Although mac80211/low level driver/user space application can estimate |
| 1551 | * the need to stop aggregation on a certain RA/TID, the session level |
| 1552 | * will be managed by the mac80211. |
| 1553 | */ |
| 1554 | int ieee80211_stop_tx_ba_session(struct ieee80211_hw *hw, |
| 1555 | u8 *ra, u16 tid, |
| 1556 | enum ieee80211_back_parties initiator); |
| 1557 | |
| 1558 | /** |
| 1559 | * ieee80211_stop_tx_ba_cb - low level driver ready to stop aggregate. |
| 1560 | * @hw: pointer as obtained from ieee80211_alloc_hw(). |
| 1561 | * @ra: receiver address of the BA session recipient. |
| 1562 | * @tid: the desired TID to BA on. |
| 1563 | * |
| 1564 | * This function must be called by low level driver once it has |
| 1565 | * finished with preparations for the BA session tear down. |
| 1566 | */ |
| 1567 | void ieee80211_stop_tx_ba_cb(struct ieee80211_hw *hw, u8 *ra, u8 tid); |
| 1568 | |
| 1569 | /** |
| 1570 | * ieee80211_stop_tx_ba_cb_irqsafe - low level driver ready to stop aggregate. |
| 1571 | * @hw: pointer as obtained from ieee80211_alloc_hw(). |
| 1572 | * @ra: receiver address of the BA session recipient. |
| 1573 | * @tid: the desired TID to BA on. |
| 1574 | * |
| 1575 | * This function must be called by low level driver once it has |
| 1576 | * finished with preparations for the BA session tear down. |
| 1577 | * This version of the function is irq safe. |
| 1578 | */ |
| 1579 | void ieee80211_stop_tx_ba_cb_irqsafe(struct ieee80211_hw *hw, const u8 *ra, |
| 1580 | u16 tid); |
| 1581 | |
Jiri Benc | f0706e82 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1582 | #endif /* MAC80211_H */ |