Jiri Benc | f0706e8 | 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 | f0706e8 | 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> |
Jouni Malinen | 026331c | 2010-02-15 12:53:10 +0200 | [diff] [blame] | 6 | * Copyright 2007-2010 Johannes Berg <johannes@sipsolutions.net> |
Jiri Benc | f0706e8 | 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 | |
Paul Gortmaker | 187f188 | 2011-11-23 20:12:59 -0500 | [diff] [blame] | 16 | #include <linux/bug.h> |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 17 | #include <linux/kernel.h> |
| 18 | #include <linux/if_ether.h> |
| 19 | #include <linux/skbuff.h> |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 20 | #include <linux/ieee80211.h> |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 21 | #include <net/cfg80211.h> |
Johannes Berg | 42d9879 | 2011-07-07 18:58:01 +0200 | [diff] [blame] | 22 | #include <asm/unaligned.h> |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 23 | |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 24 | /** |
| 25 | * DOC: Introduction |
| 26 | * |
| 27 | * mac80211 is the Linux stack for 802.11 hardware that implements |
| 28 | * only partial functionality in hard- or firmware. This document |
| 29 | * defines the interface between mac80211 and low-level hardware |
| 30 | * drivers. |
| 31 | */ |
| 32 | |
| 33 | /** |
| 34 | * DOC: Calling mac80211 from interrupts |
| 35 | * |
| 36 | * Only ieee80211_tx_status_irqsafe() and ieee80211_rx_irqsafe() can be |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 37 | * called in hardware interrupt context. The low-level driver must not call any |
| 38 | * other functions in hardware interrupt context. If there is a need for such |
| 39 | * 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] | 40 | * IEEE 802.11 code call after this, e.g. from a scheduled workqueue or even |
| 41 | * tasklet function. |
| 42 | * |
| 43 | * NOTE: If the driver opts to use the _irqsafe() functions, it may not also |
Randy Dunlap | 6ef307b | 2008-07-03 13:52:18 -0700 | [diff] [blame] | 44 | * use the non-IRQ-safe functions! |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 45 | */ |
| 46 | |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 47 | /** |
| 48 | * DOC: Warning |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 49 | * |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 50 | * If you're reading this document and not the header file itself, it will |
| 51 | * be incomplete because not all documentation has been converted yet. |
| 52 | */ |
| 53 | |
| 54 | /** |
| 55 | * DOC: Frame format |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 56 | * |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 57 | * As a general rule, when frames are passed between mac80211 and the driver, |
| 58 | * they start with the IEEE 802.11 header and include the same octets that are |
| 59 | * sent over the air except for the FCS which should be calculated by the |
| 60 | * hardware. |
| 61 | * |
| 62 | * There are, however, various exceptions to this rule for advanced features: |
| 63 | * |
| 64 | * The first exception is for hardware encryption and decryption offload |
| 65 | * where the IV/ICV may or may not be generated in hardware. |
| 66 | * |
| 67 | * Secondly, when the hardware handles fragmentation, the frame handed to |
| 68 | * the driver from mac80211 is the MSDU, not the MPDU. |
| 69 | * |
| 70 | * Finally, for received frames, the driver is able to indicate that it has |
| 71 | * filled a radiotap header and put that in front of the frame; if it does |
| 72 | * not do so then mac80211 may add this under certain circumstances. |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 73 | */ |
| 74 | |
Ron Rindjunsky | 10816d4 | 2007-11-26 16:14:30 +0200 | [diff] [blame] | 75 | /** |
Luis R. Rodriguez | 42935ec | 2009-07-29 20:08:07 -0400 | [diff] [blame] | 76 | * DOC: mac80211 workqueue |
| 77 | * |
| 78 | * mac80211 provides its own workqueue for drivers and internal mac80211 use. |
| 79 | * The workqueue is a single threaded workqueue and can only be accessed by |
| 80 | * helpers for sanity checking. Drivers must ensure all work added onto the |
| 81 | * mac80211 workqueue should be cancelled on the driver stop() callback. |
| 82 | * |
| 83 | * mac80211 will flushed the workqueue upon interface removal and during |
| 84 | * suspend. |
| 85 | * |
| 86 | * All work performed on the mac80211 workqueue must not acquire the RTNL lock. |
| 87 | * |
| 88 | */ |
| 89 | |
Paul Gortmaker | 313162d | 2012-01-30 11:46:54 -0500 | [diff] [blame] | 90 | struct device; |
| 91 | |
Luis R. Rodriguez | 42935ec | 2009-07-29 20:08:07 -0400 | [diff] [blame] | 92 | /** |
Johannes Berg | e100bb6 | 2008-04-30 18:51:21 +0200 | [diff] [blame] | 93 | * enum ieee80211_max_queues - maximum number of queues |
| 94 | * |
| 95 | * @IEEE80211_MAX_QUEUES: Maximum number of regular device queues. |
Johannes Berg | e100bb6 | 2008-04-30 18:51:21 +0200 | [diff] [blame] | 96 | */ |
| 97 | enum ieee80211_max_queues { |
Johannes Berg | 3a25a8c | 2012-04-03 16:28:50 +0200 | [diff] [blame] | 98 | IEEE80211_MAX_QUEUES = 16, |
Johannes Berg | e100bb6 | 2008-04-30 18:51:21 +0200 | [diff] [blame] | 99 | }; |
| 100 | |
Johannes Berg | 3a25a8c | 2012-04-03 16:28:50 +0200 | [diff] [blame] | 101 | #define IEEE80211_INVAL_HW_QUEUE 0xff |
| 102 | |
Johannes Berg | e100bb6 | 2008-04-30 18:51:21 +0200 | [diff] [blame] | 103 | /** |
Johannes Berg | 4bce22b | 2010-11-16 11:49:58 -0800 | [diff] [blame] | 104 | * enum ieee80211_ac_numbers - AC numbers as used in mac80211 |
| 105 | * @IEEE80211_AC_VO: voice |
| 106 | * @IEEE80211_AC_VI: video |
| 107 | * @IEEE80211_AC_BE: best effort |
| 108 | * @IEEE80211_AC_BK: background |
| 109 | */ |
| 110 | enum ieee80211_ac_numbers { |
| 111 | IEEE80211_AC_VO = 0, |
| 112 | IEEE80211_AC_VI = 1, |
| 113 | IEEE80211_AC_BE = 2, |
| 114 | IEEE80211_AC_BK = 3, |
| 115 | }; |
Johannes Berg | 948d887 | 2011-09-29 16:04:29 +0200 | [diff] [blame] | 116 | #define IEEE80211_NUM_ACS 4 |
Johannes Berg | 4bce22b | 2010-11-16 11:49:58 -0800 | [diff] [blame] | 117 | |
| 118 | /** |
Johannes Berg | 6b301cd | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 119 | * struct ieee80211_tx_queue_params - transmit queue configuration |
| 120 | * |
| 121 | * The information provided in this structure is required for QoS |
Johannes Berg | 3330d7b | 2008-02-10 16:49:38 +0100 | [diff] [blame] | 122 | * transmit queue configuration. Cf. IEEE 802.11 7.3.2.29. |
Johannes Berg | 6b301cd | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 123 | * |
Bob Copeland | e37d4df | 2008-10-20 21:20:27 -0400 | [diff] [blame] | 124 | * @aifs: arbitration interframe space [0..255] |
Johannes Berg | f434b2d | 2008-07-10 11:22:31 +0200 | [diff] [blame] | 125 | * @cw_min: minimum contention window [a value of the form |
| 126 | * 2^n-1 in the range 1..32767] |
Johannes Berg | 6b301cd | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 127 | * @cw_max: maximum contention window [like @cw_min] |
Johannes Berg | 3330d7b | 2008-02-10 16:49:38 +0100 | [diff] [blame] | 128 | * @txop: maximum burst time in units of 32 usecs, 0 meaning disabled |
Kalle Valo | 9d173fc | 2010-01-14 13:09:14 +0200 | [diff] [blame] | 129 | * @uapsd: is U-APSD mode enabled for the queue |
Johannes Berg | 6b301cd | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 130 | */ |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 131 | struct ieee80211_tx_queue_params { |
Johannes Berg | f434b2d | 2008-07-10 11:22:31 +0200 | [diff] [blame] | 132 | u16 txop; |
Johannes Berg | 3330d7b | 2008-02-10 16:49:38 +0100 | [diff] [blame] | 133 | u16 cw_min; |
| 134 | u16 cw_max; |
Johannes Berg | f434b2d | 2008-07-10 11:22:31 +0200 | [diff] [blame] | 135 | u8 aifs; |
Kalle Valo | ab13315 | 2010-01-12 10:42:31 +0200 | [diff] [blame] | 136 | bool uapsd; |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 137 | }; |
| 138 | |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 139 | struct ieee80211_low_level_stats { |
| 140 | unsigned int dot11ACKFailureCount; |
| 141 | unsigned int dot11RTSFailureCount; |
| 142 | unsigned int dot11FCSErrorCount; |
| 143 | unsigned int dot11RTSSuccessCount; |
| 144 | }; |
| 145 | |
Johannes Berg | 471b3ef | 2007-12-28 14:32:58 +0100 | [diff] [blame] | 146 | /** |
| 147 | * enum ieee80211_bss_change - BSS change notification flags |
| 148 | * |
| 149 | * These flags are used with the bss_info_changed() callback |
| 150 | * to indicate which BSS parameter changed. |
| 151 | * |
| 152 | * @BSS_CHANGED_ASSOC: association status changed (associated/disassociated), |
| 153 | * also implies a change in the AID. |
| 154 | * @BSS_CHANGED_ERP_CTS_PROT: CTS protection changed |
| 155 | * @BSS_CHANGED_ERP_PREAMBLE: preamble changed |
Jouni Malinen | 9f1ba90 | 2008-08-07 20:07:01 +0300 | [diff] [blame] | 156 | * @BSS_CHANGED_ERP_SLOT: slot timing changed |
Tomas Winkler | 38668c0 | 2008-03-28 16:33:32 -0700 | [diff] [blame] | 157 | * @BSS_CHANGED_HT: 802.11n parameters changed |
Johannes Berg | 96dd22a | 2008-09-11 00:01:57 +0200 | [diff] [blame] | 158 | * @BSS_CHANGED_BASIC_RATES: Basic rateset changed |
Johannes Berg | 57c4d7b | 2009-04-23 16:10:04 +0200 | [diff] [blame] | 159 | * @BSS_CHANGED_BEACON_INT: Beacon interval changed |
Johannes Berg | 2d0ddec | 2009-04-23 16:13:26 +0200 | [diff] [blame] | 160 | * @BSS_CHANGED_BSSID: BSSID changed, for whatever |
| 161 | * reason (IBSS and managed mode) |
| 162 | * @BSS_CHANGED_BEACON: Beacon data changed, retrieve |
| 163 | * new beacon (beaconing modes) |
| 164 | * @BSS_CHANGED_BEACON_ENABLED: Beaconing should be |
| 165 | * enabled/disabled (beaconing modes) |
Juuso Oikarinen | a97c13c | 2010-03-23 09:02:34 +0200 | [diff] [blame] | 166 | * @BSS_CHANGED_CQM: Connection quality monitor config changed |
Johannes Berg | 8fc214b | 2010-04-28 17:40:43 +0200 | [diff] [blame] | 167 | * @BSS_CHANGED_IBSS: IBSS join status changed |
Juuso Oikarinen | 6854296 | 2010-06-09 13:43:26 +0300 | [diff] [blame] | 168 | * @BSS_CHANGED_ARP_FILTER: Hardware ARP filter address list or state changed. |
Johannes Berg | 4ced3f7 | 2010-07-19 16:39:04 +0200 | [diff] [blame] | 169 | * @BSS_CHANGED_QOS: QoS for this association was enabled/disabled. Note |
| 170 | * that it is only ever disabled for station mode. |
Johannes Berg | 7da7cc1 | 2010-08-05 17:02:38 +0200 | [diff] [blame] | 171 | * @BSS_CHANGED_IDLE: Idle changed for this BSS/interface. |
Arik Nemtsov | 7827493 | 2011-09-04 11:11:32 +0300 | [diff] [blame] | 172 | * @BSS_CHANGED_SSID: SSID changed for this BSS (AP mode) |
Arik Nemtsov | 0294582 | 2011-11-10 11:28:57 +0200 | [diff] [blame] | 173 | * @BSS_CHANGED_AP_PROBE_RESP: Probe Response changed for this BSS (AP mode) |
Eliad Peller | ab09587 | 2012-07-27 12:33:22 +0300 | [diff] [blame] | 174 | * @BSS_CHANGED_PS: PS changed for this BSS (STA mode) |
Johannes Berg | 471b3ef | 2007-12-28 14:32:58 +0100 | [diff] [blame] | 175 | */ |
| 176 | enum ieee80211_bss_change { |
| 177 | BSS_CHANGED_ASSOC = 1<<0, |
| 178 | BSS_CHANGED_ERP_CTS_PROT = 1<<1, |
| 179 | BSS_CHANGED_ERP_PREAMBLE = 1<<2, |
Jouni Malinen | 9f1ba90 | 2008-08-07 20:07:01 +0300 | [diff] [blame] | 180 | BSS_CHANGED_ERP_SLOT = 1<<3, |
Alexander Simon | a7ce1c9 | 2011-09-18 00:16:45 +0200 | [diff] [blame] | 181 | BSS_CHANGED_HT = 1<<4, |
Johannes Berg | 96dd22a | 2008-09-11 00:01:57 +0200 | [diff] [blame] | 182 | BSS_CHANGED_BASIC_RATES = 1<<5, |
Johannes Berg | 57c4d7b | 2009-04-23 16:10:04 +0200 | [diff] [blame] | 183 | BSS_CHANGED_BEACON_INT = 1<<6, |
Johannes Berg | 2d0ddec | 2009-04-23 16:13:26 +0200 | [diff] [blame] | 184 | BSS_CHANGED_BSSID = 1<<7, |
| 185 | BSS_CHANGED_BEACON = 1<<8, |
| 186 | BSS_CHANGED_BEACON_ENABLED = 1<<9, |
Juuso Oikarinen | a97c13c | 2010-03-23 09:02:34 +0200 | [diff] [blame] | 187 | BSS_CHANGED_CQM = 1<<10, |
Johannes Berg | 8fc214b | 2010-04-28 17:40:43 +0200 | [diff] [blame] | 188 | BSS_CHANGED_IBSS = 1<<11, |
Juuso Oikarinen | 6854296 | 2010-06-09 13:43:26 +0300 | [diff] [blame] | 189 | BSS_CHANGED_ARP_FILTER = 1<<12, |
Johannes Berg | 4ced3f7 | 2010-07-19 16:39:04 +0200 | [diff] [blame] | 190 | BSS_CHANGED_QOS = 1<<13, |
Johannes Berg | 7da7cc1 | 2010-08-05 17:02:38 +0200 | [diff] [blame] | 191 | BSS_CHANGED_IDLE = 1<<14, |
Arik Nemtsov | 7827493 | 2011-09-04 11:11:32 +0300 | [diff] [blame] | 192 | BSS_CHANGED_SSID = 1<<15, |
Arik Nemtsov | 0294582 | 2011-11-10 11:28:57 +0200 | [diff] [blame] | 193 | BSS_CHANGED_AP_PROBE_RESP = 1<<16, |
Eliad Peller | ab09587 | 2012-07-27 12:33:22 +0300 | [diff] [blame] | 194 | BSS_CHANGED_PS = 1<<17, |
Johannes Berg | ac8dd50 | 2010-05-05 09:44:02 +0200 | [diff] [blame] | 195 | |
| 196 | /* when adding here, make sure to change ieee80211_reconfig */ |
Johannes Berg | 471b3ef | 2007-12-28 14:32:58 +0100 | [diff] [blame] | 197 | }; |
| 198 | |
Juuso Oikarinen | 6854296 | 2010-06-09 13:43:26 +0300 | [diff] [blame] | 199 | /* |
| 200 | * The maximum number of IPv4 addresses listed for ARP filtering. If the number |
| 201 | * of addresses for an interface increase beyond this value, hardware ARP |
| 202 | * filtering will be disabled. |
| 203 | */ |
| 204 | #define IEEE80211_BSS_ARP_ADDR_LIST_LEN 4 |
| 205 | |
Johannes Berg | 471b3ef | 2007-12-28 14:32:58 +0100 | [diff] [blame] | 206 | /** |
Meenakshi Venkataraman | 615f7b9 | 2011-07-08 08:46:22 -0700 | [diff] [blame] | 207 | * enum ieee80211_rssi_event - RSSI threshold event |
| 208 | * An indicator for when RSSI goes below/above a certain threshold. |
| 209 | * @RSSI_EVENT_HIGH: AP's rssi crossed the high threshold set by the driver. |
| 210 | * @RSSI_EVENT_LOW: AP's rssi crossed the low threshold set by the driver. |
| 211 | */ |
| 212 | enum ieee80211_rssi_event { |
| 213 | RSSI_EVENT_HIGH, |
| 214 | RSSI_EVENT_LOW, |
| 215 | }; |
| 216 | |
| 217 | /** |
Johannes Berg | 471b3ef | 2007-12-28 14:32:58 +0100 | [diff] [blame] | 218 | * struct ieee80211_bss_conf - holds the BSS's changing parameters |
| 219 | * |
| 220 | * This structure keeps information about a BSS (and an association |
| 221 | * to that BSS) that can change during the lifetime of the BSS. |
| 222 | * |
| 223 | * @assoc: association status |
Johannes Berg | 8fc214b | 2010-04-28 17:40:43 +0200 | [diff] [blame] | 224 | * @ibss_joined: indicates whether this station is part of an IBSS |
| 225 | * or not |
Johannes Berg | 471b3ef | 2007-12-28 14:32:58 +0100 | [diff] [blame] | 226 | * @aid: association ID number, valid only when @assoc is true |
| 227 | * @use_cts_prot: use CTS protection |
Johannes Berg | 7a5158e | 2008-10-08 10:59:33 +0200 | [diff] [blame] | 228 | * @use_short_preamble: use 802.11b short preamble; |
| 229 | * if the hardware cannot handle this it must set the |
| 230 | * IEEE80211_HW_2GHZ_SHORT_PREAMBLE_INCAPABLE hardware flag |
| 231 | * @use_short_slot: use short slot time (only relevant for ERP); |
| 232 | * if the hardware cannot handle this it must set the |
| 233 | * IEEE80211_HW_2GHZ_SHORT_SLOT_INCAPABLE hardware flag |
Johannes Berg | 56007a0 | 2010-01-26 14:19:52 +0100 | [diff] [blame] | 234 | * @dtim_period: num of beacons before the next DTIM, for beaconing, |
Johannes Berg | e5b900d | 2010-07-29 16:08:55 +0200 | [diff] [blame] | 235 | * valid in station mode only while @assoc is true and if also |
| 236 | * requested by %IEEE80211_HW_NEED_DTIM_PERIOD (cf. also hw conf |
| 237 | * @ps_dtim_period) |
Johannes Berg | 8c358bc | 2012-05-22 22:13:05 +0200 | [diff] [blame] | 238 | * @sync_tsf: last beacon's/probe response's TSF timestamp (could be old |
Johannes Berg | e9ac074 | 2012-03-13 14:29:30 +0100 | [diff] [blame] | 239 | * as it may have been received during scanning long ago) |
Johannes Berg | 8c358bc | 2012-05-22 22:13:05 +0200 | [diff] [blame] | 240 | * @sync_device_ts: the device timestamp corresponding to the sync_tsf, |
| 241 | * the driver/device can use this to calculate synchronisation |
Tomas Winkler | 21c0cbe | 2008-03-28 16:33:34 -0700 | [diff] [blame] | 242 | * @beacon_int: beacon interval |
Emmanuel Grumbach | 98f7dfd | 2008-07-18 13:52:59 +0800 | [diff] [blame] | 243 | * @assoc_capability: capabilities taken from assoc resp |
Johannes Berg | 96dd22a | 2008-09-11 00:01:57 +0200 | [diff] [blame] | 244 | * @basic_rates: bitmap of basic rates, each bit stands for an |
| 245 | * index into the rate table configured by the driver in |
| 246 | * the current band. |
Felix Fietkau | dd5b4cc | 2010-11-22 20:58:24 +0100 | [diff] [blame] | 247 | * @mcast_rate: per-band multicast rate index + 1 (0: disabled) |
Johannes Berg | 2d0ddec | 2009-04-23 16:13:26 +0200 | [diff] [blame] | 248 | * @bssid: The BSSID for this BSS |
| 249 | * @enable_beacon: whether beaconing should be enabled or not |
Johannes Berg | 0aaffa9 | 2010-05-05 15:28:27 +0200 | [diff] [blame] | 250 | * @channel_type: Channel type for this BSS -- the hardware might be |
| 251 | * configured for HT40+ while this BSS only uses no-HT, for |
| 252 | * example. |
Johannes Berg | 074d46d | 2012-03-15 19:45:16 +0100 | [diff] [blame] | 253 | * @ht_operation_mode: HT operation mode like in &struct ieee80211_ht_operation. |
Johannes Berg | 9ed6bcc | 2009-05-08 20:47:39 +0200 | [diff] [blame] | 254 | * This field is only valid when the channel type is one of the HT types. |
Juuso Oikarinen | a97c13c | 2010-03-23 09:02:34 +0200 | [diff] [blame] | 255 | * @cqm_rssi_thold: Connection quality monitor RSSI threshold, a zero value |
| 256 | * implies disabled |
| 257 | * @cqm_rssi_hyst: Connection quality monitor RSSI hysteresis |
Juuso Oikarinen | 6854296 | 2010-06-09 13:43:26 +0300 | [diff] [blame] | 258 | * @arp_addr_list: List of IPv4 addresses for hardware ARP filtering. The |
| 259 | * may filter ARP queries targeted for other addresses than listed here. |
| 260 | * The driver must allow ARP queries targeted for all address listed here |
| 261 | * to pass through. An empty list implies no ARP queries need to pass. |
| 262 | * @arp_addr_cnt: Number of addresses currently on the list. |
| 263 | * @arp_filter_enabled: Enable ARP filtering - if enabled, the hardware may |
| 264 | * filter ARP queries based on the @arp_addr_list, if disabled, the |
| 265 | * hardware must not perform any ARP filtering. Note, that the filter will |
| 266 | * be enabled also in promiscuous mode. |
Johannes Berg | 4ced3f7 | 2010-07-19 16:39:04 +0200 | [diff] [blame] | 267 | * @qos: This is a QoS-enabled BSS. |
Johannes Berg | 7da7cc1 | 2010-08-05 17:02:38 +0200 | [diff] [blame] | 268 | * @idle: This interface is idle. There's also a global idle flag in the |
| 269 | * hardware config which may be more appropriate depending on what |
| 270 | * your driver/device needs to do. |
Eliad Peller | ab09587 | 2012-07-27 12:33:22 +0300 | [diff] [blame] | 271 | * @ps: power-save mode (STA only). This flag is NOT affected by |
| 272 | * offchannel/dynamic_ps operations. |
Arik Nemtsov | 7827493 | 2011-09-04 11:11:32 +0300 | [diff] [blame] | 273 | * @ssid: The SSID of the current vif. Only valid in AP-mode. |
| 274 | * @ssid_len: Length of SSID given in @ssid. |
| 275 | * @hidden_ssid: The SSID of the current vif is hidden. Only valid in AP-mode. |
Johannes Berg | 471b3ef | 2007-12-28 14:32:58 +0100 | [diff] [blame] | 276 | */ |
| 277 | struct ieee80211_bss_conf { |
Johannes Berg | 2d0ddec | 2009-04-23 16:13:26 +0200 | [diff] [blame] | 278 | const u8 *bssid; |
Johannes Berg | 471b3ef | 2007-12-28 14:32:58 +0100 | [diff] [blame] | 279 | /* association related data */ |
Johannes Berg | 8fc214b | 2010-04-28 17:40:43 +0200 | [diff] [blame] | 280 | bool assoc, ibss_joined; |
Johannes Berg | 471b3ef | 2007-12-28 14:32:58 +0100 | [diff] [blame] | 281 | u16 aid; |
| 282 | /* erp related data */ |
| 283 | bool use_cts_prot; |
| 284 | bool use_short_preamble; |
Jouni Malinen | 9f1ba90 | 2008-08-07 20:07:01 +0300 | [diff] [blame] | 285 | bool use_short_slot; |
Johannes Berg | 2d0ddec | 2009-04-23 16:13:26 +0200 | [diff] [blame] | 286 | bool enable_beacon; |
Emmanuel Grumbach | 98f7dfd | 2008-07-18 13:52:59 +0800 | [diff] [blame] | 287 | u8 dtim_period; |
Tomas Winkler | 21c0cbe | 2008-03-28 16:33:34 -0700 | [diff] [blame] | 288 | u16 beacon_int; |
| 289 | u16 assoc_capability; |
Johannes Berg | 8c358bc | 2012-05-22 22:13:05 +0200 | [diff] [blame] | 290 | u64 sync_tsf; |
| 291 | u32 sync_device_ts; |
Johannes Berg | 881d948 | 2009-01-21 15:13:48 +0100 | [diff] [blame] | 292 | u32 basic_rates; |
Felix Fietkau | dd5b4cc | 2010-11-22 20:58:24 +0100 | [diff] [blame] | 293 | int mcast_rate[IEEE80211_NUM_BANDS]; |
Johannes Berg | 9ed6bcc | 2009-05-08 20:47:39 +0200 | [diff] [blame] | 294 | u16 ht_operation_mode; |
Juuso Oikarinen | a97c13c | 2010-03-23 09:02:34 +0200 | [diff] [blame] | 295 | s32 cqm_rssi_thold; |
| 296 | u32 cqm_rssi_hyst; |
Johannes Berg | 0aaffa9 | 2010-05-05 15:28:27 +0200 | [diff] [blame] | 297 | enum nl80211_channel_type channel_type; |
Juuso Oikarinen | 6854296 | 2010-06-09 13:43:26 +0300 | [diff] [blame] | 298 | __be32 arp_addr_list[IEEE80211_BSS_ARP_ADDR_LIST_LEN]; |
| 299 | u8 arp_addr_cnt; |
| 300 | bool arp_filter_enabled; |
Johannes Berg | 4ced3f7 | 2010-07-19 16:39:04 +0200 | [diff] [blame] | 301 | bool qos; |
Johannes Berg | 7da7cc1 | 2010-08-05 17:02:38 +0200 | [diff] [blame] | 302 | bool idle; |
Eliad Peller | ab09587 | 2012-07-27 12:33:22 +0300 | [diff] [blame] | 303 | bool ps; |
Arik Nemtsov | 7827493 | 2011-09-04 11:11:32 +0300 | [diff] [blame] | 304 | u8 ssid[IEEE80211_MAX_SSID_LEN]; |
| 305 | size_t ssid_len; |
| 306 | bool hidden_ssid; |
Johannes Berg | 471b3ef | 2007-12-28 14:32:58 +0100 | [diff] [blame] | 307 | }; |
| 308 | |
Ron Rindjunsky | 11f4b1c | 2008-03-04 18:09:26 -0800 | [diff] [blame] | 309 | /** |
Randy Dunlap | 6ef307b | 2008-07-03 13:52:18 -0700 | [diff] [blame] | 310 | * enum mac80211_tx_control_flags - flags to describe transmission information/status |
Ron Rindjunsky | 11f4b1c | 2008-03-04 18:09:26 -0800 | [diff] [blame] | 311 | * |
Randy Dunlap | 6ef307b | 2008-07-03 13:52:18 -0700 | [diff] [blame] | 312 | * These flags are used with the @flags member of &ieee80211_tx_info. |
Ron Rindjunsky | 11f4b1c | 2008-03-04 18:09:26 -0800 | [diff] [blame] | 313 | * |
Johannes Berg | 7351c6b | 2009-11-19 01:08:30 +0100 | [diff] [blame] | 314 | * @IEEE80211_TX_CTL_REQ_TX_STATUS: require TX status callback for this frame. |
Johannes Berg | e6a9854 | 2008-10-21 12:40:02 +0200 | [diff] [blame] | 315 | * @IEEE80211_TX_CTL_ASSIGN_SEQ: The driver has to assign a sequence |
| 316 | * number to this frame, taking care of not overwriting the fragment |
| 317 | * number and increasing the sequence number only when the |
| 318 | * IEEE80211_TX_CTL_FIRST_FRAGMENT flag is set. mac80211 will properly |
| 319 | * assign sequence numbers to QoS-data frames but cannot do so correctly |
| 320 | * for non-QoS-data and management frames because beacons need them from |
| 321 | * that counter as well and mac80211 cannot guarantee proper sequencing. |
| 322 | * If this flag is set, the driver should instruct the hardware to |
| 323 | * assign a sequence number to the frame or assign one itself. Cf. IEEE |
| 324 | * 802.11-2007 7.1.3.4.1 paragraph 3. This flag will always be set for |
| 325 | * beacons and always be clear for frames without a sequence number field. |
Johannes Berg | e039fa4 | 2008-05-15 12:55:29 +0200 | [diff] [blame] | 326 | * @IEEE80211_TX_CTL_NO_ACK: tell the low level not to wait for an ack |
Johannes Berg | e039fa4 | 2008-05-15 12:55:29 +0200 | [diff] [blame] | 327 | * @IEEE80211_TX_CTL_CLEAR_PS_FILT: clear powersave filter for destination |
| 328 | * station |
Johannes Berg | e039fa4 | 2008-05-15 12:55:29 +0200 | [diff] [blame] | 329 | * @IEEE80211_TX_CTL_FIRST_FRAGMENT: this is a first fragment of the frame |
Johannes Berg | e039fa4 | 2008-05-15 12:55:29 +0200 | [diff] [blame] | 330 | * @IEEE80211_TX_CTL_SEND_AFTER_DTIM: send this frame after DTIM beacon |
| 331 | * @IEEE80211_TX_CTL_AMPDU: this frame should be sent as part of an A-MPDU |
Johannes Berg | e6a9854 | 2008-10-21 12:40:02 +0200 | [diff] [blame] | 332 | * @IEEE80211_TX_CTL_INJECTED: Frame was injected, internal to mac80211. |
Johannes Berg | e039fa4 | 2008-05-15 12:55:29 +0200 | [diff] [blame] | 333 | * @IEEE80211_TX_STAT_TX_FILTERED: The frame was not transmitted |
Johannes Berg | ab5b534 | 2009-08-07 16:28:09 +0200 | [diff] [blame] | 334 | * because the destination STA was in powersave mode. Note that to |
| 335 | * avoid race conditions, the filter must be set by the hardware or |
| 336 | * firmware upon receiving a frame that indicates that the station |
| 337 | * went to sleep (must be done on device to filter frames already on |
| 338 | * the queue) and may only be unset after mac80211 gives the OK for |
| 339 | * that by setting the IEEE80211_TX_CTL_CLEAR_PS_FILT (see above), |
| 340 | * since only then is it guaranteed that no more frames are in the |
| 341 | * hardware queue. |
Johannes Berg | e039fa4 | 2008-05-15 12:55:29 +0200 | [diff] [blame] | 342 | * @IEEE80211_TX_STAT_ACK: Frame was acknowledged |
| 343 | * @IEEE80211_TX_STAT_AMPDU: The frame was aggregated, so status |
| 344 | * is for the whole aggregation. |
Ron Rindjunsky | 429a380 | 2008-07-01 14:16:03 +0300 | [diff] [blame] | 345 | * @IEEE80211_TX_STAT_AMPDU_NO_BACK: no block ack was returned, |
| 346 | * so consider using block ack request (BAR). |
Johannes Berg | e6a9854 | 2008-10-21 12:40:02 +0200 | [diff] [blame] | 347 | * @IEEE80211_TX_CTL_RATE_CTRL_PROBE: internal to mac80211, can be |
| 348 | * set by rate control algorithms to indicate probe rate, will |
| 349 | * be cleared for fragmented frames (except on the last fragment) |
Johannes Berg | cd8ffc8 | 2009-03-23 17:28:41 +0100 | [diff] [blame] | 350 | * @IEEE80211_TX_INTFL_NEED_TXPROCESSING: completely internal to mac80211, |
| 351 | * used to indicate that a pending frame requires TX processing before |
| 352 | * it can be sent out. |
Johannes Berg | 8f77f38 | 2009-06-07 21:58:37 +0200 | [diff] [blame] | 353 | * @IEEE80211_TX_INTFL_RETRIED: completely internal to mac80211, |
| 354 | * used to indicate that a frame was already retried due to PS |
Johannes Berg | 3b8d81e0 | 2009-06-17 17:43:56 +0200 | [diff] [blame] | 355 | * @IEEE80211_TX_INTFL_DONT_ENCRYPT: completely internal to mac80211, |
| 356 | * used to indicate frame should not be encrypted |
Johannes Berg | 02f2f1a | 2012-02-27 12:18:30 +0100 | [diff] [blame] | 357 | * @IEEE80211_TX_CTL_NO_PS_BUFFER: This frame is a response to a poll |
| 358 | * frame (PS-Poll or uAPSD) or a non-bufferable MMPDU and must |
| 359 | * be sent although the station is in powersave mode. |
Johannes Berg | ad5351d | 2009-08-07 16:42:15 +0200 | [diff] [blame] | 360 | * @IEEE80211_TX_CTL_MORE_FRAMES: More frames will be passed to the |
| 361 | * transmit function after the current frame, this can be used |
| 362 | * by drivers to kick the DMA queue only if unset or when the |
| 363 | * queue gets full. |
Johannes Berg | c6fcf6b | 2010-01-17 01:47:59 +0100 | [diff] [blame] | 364 | * @IEEE80211_TX_INTFL_RETRANSMISSION: This frame is being retransmitted |
| 365 | * after TX status because the destination was asleep, it must not |
| 366 | * be modified again (no seqno assignment, crypto, etc.) |
Jouni Malinen | 026331c | 2010-02-15 12:53:10 +0200 | [diff] [blame] | 367 | * @IEEE80211_TX_INTFL_NL80211_FRAME_TX: Frame was requested through nl80211 |
| 368 | * MLME command (internal to mac80211 to figure out whether to send TX |
| 369 | * status to user space) |
Luis R. Rodriguez | 0a56bd0 | 2010-04-15 17:39:37 -0400 | [diff] [blame] | 370 | * @IEEE80211_TX_CTL_LDPC: tells the driver to use LDPC for this frame |
Felix Fietkau | f79d9ba | 2010-04-19 19:57:35 +0200 | [diff] [blame] | 371 | * @IEEE80211_TX_CTL_STBC: Enables Space-Time Block Coding (STBC) for this |
| 372 | * frame and selects the maximum number of streams that it can use. |
Johannes Berg | 610dbc9 | 2011-01-06 22:36:44 +0100 | [diff] [blame] | 373 | * @IEEE80211_TX_CTL_TX_OFFCHAN: Marks this packet to be transmitted on |
| 374 | * the off-channel channel when a remain-on-channel offload is done |
| 375 | * in hardware -- normal packets still flow and are expected to be |
| 376 | * handled properly by the device. |
Jouni Malinen | 681d119 | 2011-02-03 18:35:19 +0200 | [diff] [blame] | 377 | * @IEEE80211_TX_INTFL_TKIP_MIC_FAILURE: Marks this packet to be used for TKIP |
| 378 | * testing. It will be sent out with incorrect Michael MIC key to allow |
| 379 | * TKIP countermeasures to be tested. |
Rajkumar Manoharan | aad14ce | 2011-09-25 14:53:31 +0530 | [diff] [blame] | 380 | * @IEEE80211_TX_CTL_NO_CCK_RATE: This frame will be sent at non CCK rate. |
| 381 | * This flag is actually used for management frame especially for P2P |
| 382 | * frames not being sent at CCK rate in 2GHz band. |
Johannes Berg | 47086fc | 2011-09-29 16:04:33 +0200 | [diff] [blame] | 383 | * @IEEE80211_TX_STATUS_EOSP: This packet marks the end of service period, |
| 384 | * when its status is reported the service period ends. For frames in |
| 385 | * an SP that mac80211 transmits, it is already set; for driver frames |
Johannes Berg | deeaee1 | 2011-09-29 16:04:35 +0200 | [diff] [blame] | 386 | * the driver may set this flag. It is also used to do the same for |
| 387 | * PS-Poll responses. |
Rajkumar Manoharan | b6f3530 | 2011-09-29 20:34:04 +0530 | [diff] [blame] | 388 | * @IEEE80211_TX_CTL_USE_MINRATE: This frame will be sent at lowest rate. |
| 389 | * This flag is used to send nullfunc frame at minimum rate when |
| 390 | * the nullfunc is used for connection monitoring purpose. |
Johannes Berg | a26eb27 | 2011-10-07 14:01:25 +0200 | [diff] [blame] | 391 | * @IEEE80211_TX_CTL_DONTFRAG: Don't fragment this packet even if it |
| 392 | * would be fragmented by size (this is optional, only used for |
| 393 | * monitor injection). |
Christian Lamparter | eb7d306 | 2010-09-21 21:36:18 +0200 | [diff] [blame] | 394 | * |
| 395 | * Note: If you have to add new flags to the enumeration, then don't |
| 396 | * forget to update %IEEE80211_TX_TEMPORARY_FLAGS when necessary. |
Ron Rindjunsky | 11f4b1c | 2008-03-04 18:09:26 -0800 | [diff] [blame] | 397 | */ |
| 398 | enum mac80211_tx_control_flags { |
Johannes Berg | e039fa4 | 2008-05-15 12:55:29 +0200 | [diff] [blame] | 399 | IEEE80211_TX_CTL_REQ_TX_STATUS = BIT(0), |
Johannes Berg | e6a9854 | 2008-10-21 12:40:02 +0200 | [diff] [blame] | 400 | IEEE80211_TX_CTL_ASSIGN_SEQ = BIT(1), |
| 401 | IEEE80211_TX_CTL_NO_ACK = BIT(2), |
| 402 | IEEE80211_TX_CTL_CLEAR_PS_FILT = BIT(3), |
| 403 | IEEE80211_TX_CTL_FIRST_FRAGMENT = BIT(4), |
| 404 | IEEE80211_TX_CTL_SEND_AFTER_DTIM = BIT(5), |
| 405 | IEEE80211_TX_CTL_AMPDU = BIT(6), |
| 406 | IEEE80211_TX_CTL_INJECTED = BIT(7), |
| 407 | IEEE80211_TX_STAT_TX_FILTERED = BIT(8), |
| 408 | IEEE80211_TX_STAT_ACK = BIT(9), |
| 409 | IEEE80211_TX_STAT_AMPDU = BIT(10), |
| 410 | IEEE80211_TX_STAT_AMPDU_NO_BACK = BIT(11), |
| 411 | IEEE80211_TX_CTL_RATE_CTRL_PROBE = BIT(12), |
Johannes Berg | cd8ffc8 | 2009-03-23 17:28:41 +0100 | [diff] [blame] | 412 | IEEE80211_TX_INTFL_NEED_TXPROCESSING = BIT(14), |
Johannes Berg | 8f77f38 | 2009-06-07 21:58:37 +0200 | [diff] [blame] | 413 | IEEE80211_TX_INTFL_RETRIED = BIT(15), |
Johannes Berg | 3b8d81e0 | 2009-06-17 17:43:56 +0200 | [diff] [blame] | 414 | IEEE80211_TX_INTFL_DONT_ENCRYPT = BIT(16), |
Johannes Berg | 02f2f1a | 2012-02-27 12:18:30 +0100 | [diff] [blame] | 415 | IEEE80211_TX_CTL_NO_PS_BUFFER = BIT(17), |
Johannes Berg | ad5351d | 2009-08-07 16:42:15 +0200 | [diff] [blame] | 416 | IEEE80211_TX_CTL_MORE_FRAMES = BIT(18), |
Johannes Berg | c6fcf6b | 2010-01-17 01:47:59 +0100 | [diff] [blame] | 417 | IEEE80211_TX_INTFL_RETRANSMISSION = BIT(19), |
Johannes Berg | 73b9f03 | 2011-10-07 14:01:26 +0200 | [diff] [blame] | 418 | /* hole at 20, use later */ |
Jouni Malinen | 026331c | 2010-02-15 12:53:10 +0200 | [diff] [blame] | 419 | IEEE80211_TX_INTFL_NL80211_FRAME_TX = BIT(21), |
Luis R. Rodriguez | 0a56bd0 | 2010-04-15 17:39:37 -0400 | [diff] [blame] | 420 | IEEE80211_TX_CTL_LDPC = BIT(22), |
Felix Fietkau | f79d9ba | 2010-04-19 19:57:35 +0200 | [diff] [blame] | 421 | IEEE80211_TX_CTL_STBC = BIT(23) | BIT(24), |
Johannes Berg | 21f8358 | 2010-12-18 17:20:47 +0100 | [diff] [blame] | 422 | IEEE80211_TX_CTL_TX_OFFCHAN = BIT(25), |
Jouni Malinen | 681d119 | 2011-02-03 18:35:19 +0200 | [diff] [blame] | 423 | IEEE80211_TX_INTFL_TKIP_MIC_FAILURE = BIT(26), |
Rajkumar Manoharan | aad14ce | 2011-09-25 14:53:31 +0530 | [diff] [blame] | 424 | IEEE80211_TX_CTL_NO_CCK_RATE = BIT(27), |
Johannes Berg | 47086fc | 2011-09-29 16:04:33 +0200 | [diff] [blame] | 425 | IEEE80211_TX_STATUS_EOSP = BIT(28), |
Rajkumar Manoharan | b6f3530 | 2011-09-29 20:34:04 +0530 | [diff] [blame] | 426 | IEEE80211_TX_CTL_USE_MINRATE = BIT(29), |
Johannes Berg | a26eb27 | 2011-10-07 14:01:25 +0200 | [diff] [blame] | 427 | IEEE80211_TX_CTL_DONTFRAG = BIT(30), |
Johannes Berg | e6a9854 | 2008-10-21 12:40:02 +0200 | [diff] [blame] | 428 | }; |
| 429 | |
Johannes Berg | abe37c4 | 2010-06-07 11:12:27 +0200 | [diff] [blame] | 430 | #define IEEE80211_TX_CTL_STBC_SHIFT 23 |
| 431 | |
Christian Lamparter | eb7d306 | 2010-09-21 21:36:18 +0200 | [diff] [blame] | 432 | /* |
| 433 | * This definition is used as a mask to clear all temporary flags, which are |
| 434 | * set by the tx handlers for each transmission attempt by the mac80211 stack. |
| 435 | */ |
| 436 | #define IEEE80211_TX_TEMPORARY_FLAGS (IEEE80211_TX_CTL_NO_ACK | \ |
| 437 | IEEE80211_TX_CTL_CLEAR_PS_FILT | IEEE80211_TX_CTL_FIRST_FRAGMENT | \ |
| 438 | IEEE80211_TX_CTL_SEND_AFTER_DTIM | IEEE80211_TX_CTL_AMPDU | \ |
| 439 | IEEE80211_TX_STAT_TX_FILTERED | IEEE80211_TX_STAT_ACK | \ |
| 440 | IEEE80211_TX_STAT_AMPDU | IEEE80211_TX_STAT_AMPDU_NO_BACK | \ |
Johannes Berg | 02f2f1a | 2012-02-27 12:18:30 +0100 | [diff] [blame] | 441 | IEEE80211_TX_CTL_RATE_CTRL_PROBE | IEEE80211_TX_CTL_NO_PS_BUFFER | \ |
Christian Lamparter | eb7d306 | 2010-09-21 21:36:18 +0200 | [diff] [blame] | 442 | IEEE80211_TX_CTL_MORE_FRAMES | IEEE80211_TX_CTL_LDPC | \ |
Johannes Berg | 47086fc | 2011-09-29 16:04:33 +0200 | [diff] [blame] | 443 | IEEE80211_TX_CTL_STBC | IEEE80211_TX_STATUS_EOSP) |
Christian Lamparter | eb7d306 | 2010-09-21 21:36:18 +0200 | [diff] [blame] | 444 | |
Sujith | 2134e7e | 2009-01-22 09:00:52 +0530 | [diff] [blame] | 445 | /** |
| 446 | * enum mac80211_rate_control_flags - per-rate flags set by the |
| 447 | * Rate Control algorithm. |
| 448 | * |
| 449 | * These flags are set by the Rate control algorithm for each rate during tx, |
| 450 | * in the @flags member of struct ieee80211_tx_rate. |
| 451 | * |
| 452 | * @IEEE80211_TX_RC_USE_RTS_CTS: Use RTS/CTS exchange for this rate. |
| 453 | * @IEEE80211_TX_RC_USE_CTS_PROTECT: CTS-to-self protection is required. |
| 454 | * This is set if the current BSS requires ERP protection. |
| 455 | * @IEEE80211_TX_RC_USE_SHORT_PREAMBLE: Use short preamble. |
| 456 | * @IEEE80211_TX_RC_MCS: HT rate. |
| 457 | * @IEEE80211_TX_RC_GREEN_FIELD: Indicates whether this rate should be used in |
| 458 | * Greenfield mode. |
| 459 | * @IEEE80211_TX_RC_40_MHZ_WIDTH: Indicates if the Channel Width should be 40 MHz. |
| 460 | * @IEEE80211_TX_RC_DUP_DATA: The frame should be transmitted on both of the |
| 461 | * adjacent 20 MHz channels, if the current channel type is |
| 462 | * NL80211_CHAN_HT40MINUS or NL80211_CHAN_HT40PLUS. |
| 463 | * @IEEE80211_TX_RC_SHORT_GI: Short Guard interval should be used for this rate. |
| 464 | */ |
Johannes Berg | e6a9854 | 2008-10-21 12:40:02 +0200 | [diff] [blame] | 465 | enum mac80211_rate_control_flags { |
| 466 | IEEE80211_TX_RC_USE_RTS_CTS = BIT(0), |
| 467 | IEEE80211_TX_RC_USE_CTS_PROTECT = BIT(1), |
| 468 | IEEE80211_TX_RC_USE_SHORT_PREAMBLE = BIT(2), |
| 469 | |
| 470 | /* rate index is an MCS rate number instead of an index */ |
| 471 | IEEE80211_TX_RC_MCS = BIT(3), |
| 472 | IEEE80211_TX_RC_GREEN_FIELD = BIT(4), |
| 473 | IEEE80211_TX_RC_40_MHZ_WIDTH = BIT(5), |
| 474 | IEEE80211_TX_RC_DUP_DATA = BIT(6), |
| 475 | IEEE80211_TX_RC_SHORT_GI = BIT(7), |
Ron Rindjunsky | 11f4b1c | 2008-03-04 18:09:26 -0800 | [diff] [blame] | 476 | }; |
| 477 | |
Johannes Berg | e039fa4 | 2008-05-15 12:55:29 +0200 | [diff] [blame] | 478 | |
Johannes Berg | e6a9854 | 2008-10-21 12:40:02 +0200 | [diff] [blame] | 479 | /* there are 40 bytes if you don't need the rateset to be kept */ |
| 480 | #define IEEE80211_TX_INFO_DRIVER_DATA_SIZE 40 |
Johannes Berg | e039fa4 | 2008-05-15 12:55:29 +0200 | [diff] [blame] | 481 | |
Johannes Berg | e6a9854 | 2008-10-21 12:40:02 +0200 | [diff] [blame] | 482 | /* if you do need the rateset, then you have less space */ |
| 483 | #define IEEE80211_TX_INFO_RATE_DRIVER_DATA_SIZE 24 |
| 484 | |
| 485 | /* maximum number of rate stages */ |
Thomas Huehn | e3e1a0b | 2012-07-02 19:46:16 +0200 | [diff] [blame] | 486 | #define IEEE80211_TX_MAX_RATES 4 |
Felix Fietkau | 870abdf | 2008-10-05 18:04:24 +0200 | [diff] [blame] | 487 | |
| 488 | /** |
Johannes Berg | e6a9854 | 2008-10-21 12:40:02 +0200 | [diff] [blame] | 489 | * struct ieee80211_tx_rate - rate selection/status |
Felix Fietkau | 870abdf | 2008-10-05 18:04:24 +0200 | [diff] [blame] | 490 | * |
Johannes Berg | e6a9854 | 2008-10-21 12:40:02 +0200 | [diff] [blame] | 491 | * @idx: rate index to attempt to send with |
| 492 | * @flags: rate control flags (&enum mac80211_rate_control_flags) |
Johannes Berg | e25cf4a | 2008-10-23 08:51:20 +0200 | [diff] [blame] | 493 | * @count: number of tries in this rate before going to the next rate |
Johannes Berg | e6a9854 | 2008-10-21 12:40:02 +0200 | [diff] [blame] | 494 | * |
| 495 | * A value of -1 for @idx indicates an invalid rate and, if used |
| 496 | * in an array of retry rates, that no more rates should be tried. |
| 497 | * |
| 498 | * When used for transmit status reporting, the driver should |
| 499 | * always report the rate along with the flags it used. |
Johannes Berg | c555b9b | 2009-08-07 16:23:43 +0200 | [diff] [blame] | 500 | * |
| 501 | * &struct ieee80211_tx_info contains an array of these structs |
| 502 | * in the control information, and it will be filled by the rate |
| 503 | * control algorithm according to what should be sent. For example, |
| 504 | * if this array contains, in the format { <idx>, <count> } the |
| 505 | * information |
| 506 | * { 3, 2 }, { 2, 2 }, { 1, 4 }, { -1, 0 }, { -1, 0 } |
| 507 | * then this means that the frame should be transmitted |
| 508 | * up to twice at rate 3, up to twice at rate 2, and up to four |
| 509 | * times at rate 1 if it doesn't get acknowledged. Say it gets |
| 510 | * acknowledged by the peer after the fifth attempt, the status |
| 511 | * information should then contain |
| 512 | * { 3, 2 }, { 2, 2 }, { 1, 1 }, { -1, 0 } ... |
| 513 | * since it was transmitted twice at rate 3, twice at rate 2 |
| 514 | * and once at rate 1 after which we received an acknowledgement. |
Felix Fietkau | 870abdf | 2008-10-05 18:04:24 +0200 | [diff] [blame] | 515 | */ |
Johannes Berg | e6a9854 | 2008-10-21 12:40:02 +0200 | [diff] [blame] | 516 | struct ieee80211_tx_rate { |
| 517 | s8 idx; |
| 518 | u8 count; |
| 519 | u8 flags; |
Gustavo F. Padovan | 3f30fc1 | 2010-07-21 10:59:58 +0000 | [diff] [blame] | 520 | } __packed; |
Felix Fietkau | 870abdf | 2008-10-05 18:04:24 +0200 | [diff] [blame] | 521 | |
Johannes Berg | e039fa4 | 2008-05-15 12:55:29 +0200 | [diff] [blame] | 522 | /** |
| 523 | * struct ieee80211_tx_info - skb transmit information |
Ivo van Doorn | 1c01442 | 2008-04-17 19:41:02 +0200 | [diff] [blame] | 524 | * |
Johannes Berg | e039fa4 | 2008-05-15 12:55:29 +0200 | [diff] [blame] | 525 | * This structure is placed in skb->cb for three uses: |
| 526 | * (1) mac80211 TX control - mac80211 tells the driver what to do |
| 527 | * (2) driver internal use (if applicable) |
| 528 | * (3) TX status information - driver tells mac80211 what happened |
| 529 | * |
| 530 | * @flags: transmit info flags, defined above |
Johannes Berg | e6a9854 | 2008-10-21 12:40:02 +0200 | [diff] [blame] | 531 | * @band: the band to transmit on (use for checking for races) |
Johannes Berg | 3a25a8c | 2012-04-03 16:28:50 +0200 | [diff] [blame] | 532 | * @hw_queue: HW queue to put the frame on, skb_get_queue_mapping() gives the AC |
Johannes Berg | a729cff | 2011-11-06 14:13:34 +0100 | [diff] [blame] | 533 | * @ack_frame_id: internal frame ID for TX status, used internally |
Randy Dunlap | 6ef307b | 2008-07-03 13:52:18 -0700 | [diff] [blame] | 534 | * @control: union for control data |
| 535 | * @status: union for status data |
| 536 | * @driver_data: array of driver_data pointers |
Felix Fietkau | 599bf6a | 2009-11-15 23:07:30 +0100 | [diff] [blame] | 537 | * @ampdu_ack_len: number of acked aggregated frames. |
Daniel Halperin | 93d95b1 | 2010-04-18 09:28:18 -0700 | [diff] [blame] | 538 | * relevant only if IEEE80211_TX_STAT_AMPDU was set. |
Felix Fietkau | 599bf6a | 2009-11-15 23:07:30 +0100 | [diff] [blame] | 539 | * @ampdu_len: number of aggregated frames. |
Daniel Halperin | 93d95b1 | 2010-04-18 09:28:18 -0700 | [diff] [blame] | 540 | * relevant only if IEEE80211_TX_STAT_AMPDU was set. |
Johannes Berg | e039fa4 | 2008-05-15 12:55:29 +0200 | [diff] [blame] | 541 | * @ack_signal: signal strength of the ACK frame |
Ivo van Doorn | 1c01442 | 2008-04-17 19:41:02 +0200 | [diff] [blame] | 542 | */ |
Johannes Berg | e039fa4 | 2008-05-15 12:55:29 +0200 | [diff] [blame] | 543 | struct ieee80211_tx_info { |
| 544 | /* common information */ |
| 545 | u32 flags; |
| 546 | u8 band; |
Johannes Berg | e6a9854 | 2008-10-21 12:40:02 +0200 | [diff] [blame] | 547 | |
Johannes Berg | 3a25a8c | 2012-04-03 16:28:50 +0200 | [diff] [blame] | 548 | u8 hw_queue; |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 549 | |
Johannes Berg | a729cff | 2011-11-06 14:13:34 +0100 | [diff] [blame] | 550 | u16 ack_frame_id; |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 551 | |
Johannes Berg | e039fa4 | 2008-05-15 12:55:29 +0200 | [diff] [blame] | 552 | union { |
| 553 | struct { |
Johannes Berg | e6a9854 | 2008-10-21 12:40:02 +0200 | [diff] [blame] | 554 | union { |
| 555 | /* rate control */ |
| 556 | struct { |
| 557 | struct ieee80211_tx_rate rates[ |
| 558 | IEEE80211_TX_MAX_RATES]; |
| 559 | s8 rts_cts_rate_idx; |
Thomas Huehn | 36323f8 | 2012-07-23 21:33:42 +0200 | [diff] [blame] | 560 | /* 3 bytes free */ |
Johannes Berg | e6a9854 | 2008-10-21 12:40:02 +0200 | [diff] [blame] | 561 | }; |
| 562 | /* only needed before rate control */ |
| 563 | unsigned long jiffies; |
| 564 | }; |
Johannes Berg | 25d834e | 2008-09-12 22:52:47 +0200 | [diff] [blame] | 565 | /* NB: vif can be NULL for injected frames */ |
Johannes Berg | e039fa4 | 2008-05-15 12:55:29 +0200 | [diff] [blame] | 566 | struct ieee80211_vif *vif; |
| 567 | struct ieee80211_key_conf *hw_key; |
Thomas Huehn | 36323f8 | 2012-07-23 21:33:42 +0200 | [diff] [blame] | 568 | /* 8 bytes free */ |
Johannes Berg | e039fa4 | 2008-05-15 12:55:29 +0200 | [diff] [blame] | 569 | } control; |
| 570 | struct { |
Johannes Berg | e6a9854 | 2008-10-21 12:40:02 +0200 | [diff] [blame] | 571 | struct ieee80211_tx_rate rates[IEEE80211_TX_MAX_RATES]; |
Johannes Berg | e039fa4 | 2008-05-15 12:55:29 +0200 | [diff] [blame] | 572 | int ack_signal; |
Thomas Huehn | e3e1a0b | 2012-07-02 19:46:16 +0200 | [diff] [blame] | 573 | u8 ampdu_ack_len; |
Felix Fietkau | 599bf6a | 2009-11-15 23:07:30 +0100 | [diff] [blame] | 574 | u8 ampdu_len; |
Johannes Berg | d748b46 | 2012-03-28 11:04:23 +0200 | [diff] [blame] | 575 | u8 antenna; |
Thomas Huehn | e3e1a0b | 2012-07-02 19:46:16 +0200 | [diff] [blame] | 576 | /* 21 bytes free */ |
Johannes Berg | e039fa4 | 2008-05-15 12:55:29 +0200 | [diff] [blame] | 577 | } status; |
Johannes Berg | e6a9854 | 2008-10-21 12:40:02 +0200 | [diff] [blame] | 578 | struct { |
| 579 | struct ieee80211_tx_rate driver_rates[ |
| 580 | IEEE80211_TX_MAX_RATES]; |
| 581 | void *rate_driver_data[ |
| 582 | IEEE80211_TX_INFO_RATE_DRIVER_DATA_SIZE / sizeof(void *)]; |
| 583 | }; |
| 584 | void *driver_data[ |
| 585 | IEEE80211_TX_INFO_DRIVER_DATA_SIZE / sizeof(void *)]; |
Johannes Berg | e039fa4 | 2008-05-15 12:55:29 +0200 | [diff] [blame] | 586 | }; |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 587 | }; |
| 588 | |
Luciano Coelho | 79f460c | 2011-05-11 17:09:36 +0300 | [diff] [blame] | 589 | /** |
Randy Dunlap | bdfbe80 | 2011-05-22 17:22:45 -0700 | [diff] [blame] | 590 | * struct ieee80211_sched_scan_ies - scheduled scan IEs |
Luciano Coelho | 79f460c | 2011-05-11 17:09:36 +0300 | [diff] [blame] | 591 | * |
| 592 | * This structure is used to pass the appropriate IEs to be used in scheduled |
| 593 | * scans for all bands. It contains both the IEs passed from the userspace |
| 594 | * and the ones generated by mac80211. |
| 595 | * |
| 596 | * @ie: array with the IEs for each supported band |
| 597 | * @len: array with the total length of the IEs for each band |
| 598 | */ |
| 599 | struct ieee80211_sched_scan_ies { |
| 600 | u8 *ie[IEEE80211_NUM_BANDS]; |
| 601 | size_t len[IEEE80211_NUM_BANDS]; |
| 602 | }; |
| 603 | |
Johannes Berg | e039fa4 | 2008-05-15 12:55:29 +0200 | [diff] [blame] | 604 | static inline struct ieee80211_tx_info *IEEE80211_SKB_CB(struct sk_buff *skb) |
| 605 | { |
| 606 | return (struct ieee80211_tx_info *)skb->cb; |
| 607 | } |
Johannes Berg | 7ac1bd6 | 2007-09-14 11:10:25 -0400 | [diff] [blame] | 608 | |
Johannes Berg | f1d58c2 | 2009-06-17 13:13:00 +0200 | [diff] [blame] | 609 | static inline struct ieee80211_rx_status *IEEE80211_SKB_RXCB(struct sk_buff *skb) |
| 610 | { |
| 611 | return (struct ieee80211_rx_status *)skb->cb; |
| 612 | } |
| 613 | |
Johannes Berg | e6a9854 | 2008-10-21 12:40:02 +0200 | [diff] [blame] | 614 | /** |
| 615 | * ieee80211_tx_info_clear_status - clear TX status |
| 616 | * |
| 617 | * @info: The &struct ieee80211_tx_info to be cleared. |
| 618 | * |
| 619 | * When the driver passes an skb back to mac80211, it must report |
| 620 | * a number of things in TX status. This function clears everything |
| 621 | * in the TX status but the rate control information (it does clear |
| 622 | * the count since you need to fill that in anyway). |
| 623 | * |
| 624 | * NOTE: You can only use this function if you do NOT use |
| 625 | * info->driver_data! Use info->rate_driver_data |
| 626 | * instead if you need only the less space that allows. |
| 627 | */ |
| 628 | static inline void |
| 629 | ieee80211_tx_info_clear_status(struct ieee80211_tx_info *info) |
| 630 | { |
| 631 | int i; |
| 632 | |
| 633 | BUILD_BUG_ON(offsetof(struct ieee80211_tx_info, status.rates) != |
| 634 | offsetof(struct ieee80211_tx_info, control.rates)); |
| 635 | BUILD_BUG_ON(offsetof(struct ieee80211_tx_info, status.rates) != |
| 636 | offsetof(struct ieee80211_tx_info, driver_rates)); |
| 637 | BUILD_BUG_ON(offsetof(struct ieee80211_tx_info, status.rates) != 8); |
| 638 | /* clear the rate counts */ |
| 639 | for (i = 0; i < IEEE80211_TX_MAX_RATES; i++) |
| 640 | info->status.rates[i].count = 0; |
| 641 | |
| 642 | BUILD_BUG_ON( |
Thomas Huehn | e3e1a0b | 2012-07-02 19:46:16 +0200 | [diff] [blame] | 643 | offsetof(struct ieee80211_tx_info, status.ack_signal) != 20); |
Johannes Berg | e6a9854 | 2008-10-21 12:40:02 +0200 | [diff] [blame] | 644 | memset(&info->status.ampdu_ack_len, 0, |
| 645 | sizeof(struct ieee80211_tx_info) - |
| 646 | offsetof(struct ieee80211_tx_info, status.ampdu_ack_len)); |
| 647 | } |
| 648 | |
Johannes Berg | 7ac1bd6 | 2007-09-14 11:10:25 -0400 | [diff] [blame] | 649 | |
| 650 | /** |
| 651 | * enum mac80211_rx_flags - receive flags |
| 652 | * |
| 653 | * These flags are used with the @flag member of &struct ieee80211_rx_status. |
| 654 | * @RX_FLAG_MMIC_ERROR: Michael MIC error was reported on this frame. |
| 655 | * Use together with %RX_FLAG_MMIC_STRIPPED. |
| 656 | * @RX_FLAG_DECRYPTED: This frame was decrypted in hardware. |
Johannes Berg | 7ac1bd6 | 2007-09-14 11:10:25 -0400 | [diff] [blame] | 657 | * @RX_FLAG_MMIC_STRIPPED: the Michael MIC is stripped off this frame, |
| 658 | * verification has been done by the hardware. |
| 659 | * @RX_FLAG_IV_STRIPPED: The IV/ICV are stripped from this frame. |
| 660 | * If this flag is set, the stack cannot do any replay detection |
| 661 | * hence the driver or hardware will have to do that. |
Johannes Berg | 72abd81 | 2007-09-17 01:29:22 -0400 | [diff] [blame] | 662 | * @RX_FLAG_FAILED_FCS_CRC: Set this flag if the FCS check failed on |
| 663 | * the frame. |
| 664 | * @RX_FLAG_FAILED_PLCP_CRC: Set this flag if the PCLP check failed on |
| 665 | * the frame. |
Johannes Berg | 6ebacbb | 2011-02-23 15:06:08 +0100 | [diff] [blame] | 666 | * @RX_FLAG_MACTIME_MPDU: The timestamp passed in the RX status (@mactime |
| 667 | * field) is valid and contains the time the first symbol of the MPDU |
| 668 | * was received. This is useful in monitor mode and for proper IBSS |
| 669 | * merging. |
Bruno Randolf | b4f28bb | 2008-07-30 17:19:55 +0200 | [diff] [blame] | 670 | * @RX_FLAG_SHORTPRE: Short preamble was used for this frame |
Jouni Malinen | 0fb8ca4 | 2008-12-12 14:38:33 +0200 | [diff] [blame] | 671 | * @RX_FLAG_HT: HT MCS was used and rate_idx is MCS index |
| 672 | * @RX_FLAG_40MHZ: HT40 (40 MHz) was used |
| 673 | * @RX_FLAG_SHORT_GI: Short guard interval was used |
Felix Fietkau | fe8431f | 2012-03-01 18:00:07 +0100 | [diff] [blame] | 674 | * @RX_FLAG_NO_SIGNAL_VAL: The signal strength value is not present. |
| 675 | * Valid only for data frames (mainly A-MPDU) |
Johannes Berg | ac55d2f | 2012-05-10 09:09:10 +0200 | [diff] [blame] | 676 | * @RX_FLAG_HT_GF: This frame was received in a HT-greenfield transmission, if |
| 677 | * the driver fills this value it should add %IEEE80211_RADIOTAP_MCS_HAVE_FMT |
| 678 | * to hw.radiotap_mcs_details to advertise that fact |
Johannes Berg | 4c29867 | 2012-07-05 11:34:31 +0200 | [diff] [blame] | 679 | * @RX_FLAG_AMPDU_DETAILS: A-MPDU details are known, in particular the reference |
| 680 | * number (@ampdu_reference) must be populated and be a distinct number for |
| 681 | * each A-MPDU |
| 682 | * @RX_FLAG_AMPDU_REPORT_ZEROLEN: driver reports 0-length subframes |
| 683 | * @RX_FLAG_AMPDU_IS_ZEROLEN: This is a zero-length subframe, for |
| 684 | * monitoring purposes only |
| 685 | * @RX_FLAG_AMPDU_LAST_KNOWN: last subframe is known, should be set on all |
| 686 | * subframes of a single A-MPDU |
| 687 | * @RX_FLAG_AMPDU_IS_LAST: this subframe is the last subframe of the A-MPDU |
| 688 | * @RX_FLAG_AMPDU_DELIM_CRC_ERROR: A delimiter CRC error has been detected |
| 689 | * on this subframe |
| 690 | * @RX_FLAG_AMPDU_DELIM_CRC_KNOWN: The delimiter CRC field is known (the CRC |
| 691 | * is stored in the @ampdu_delimiter_crc field) |
Johannes Berg | 7ac1bd6 | 2007-09-14 11:10:25 -0400 | [diff] [blame] | 692 | */ |
| 693 | enum mac80211_rx_flags { |
Johannes Berg | 4c29867 | 2012-07-05 11:34:31 +0200 | [diff] [blame] | 694 | RX_FLAG_MMIC_ERROR = BIT(0), |
| 695 | RX_FLAG_DECRYPTED = BIT(1), |
| 696 | RX_FLAG_MMIC_STRIPPED = BIT(3), |
| 697 | RX_FLAG_IV_STRIPPED = BIT(4), |
| 698 | RX_FLAG_FAILED_FCS_CRC = BIT(5), |
| 699 | RX_FLAG_FAILED_PLCP_CRC = BIT(6), |
| 700 | RX_FLAG_MACTIME_MPDU = BIT(7), |
| 701 | RX_FLAG_SHORTPRE = BIT(8), |
| 702 | RX_FLAG_HT = BIT(9), |
| 703 | RX_FLAG_40MHZ = BIT(10), |
| 704 | RX_FLAG_SHORT_GI = BIT(11), |
| 705 | RX_FLAG_NO_SIGNAL_VAL = BIT(12), |
| 706 | RX_FLAG_HT_GF = BIT(13), |
| 707 | RX_FLAG_AMPDU_DETAILS = BIT(14), |
| 708 | RX_FLAG_AMPDU_REPORT_ZEROLEN = BIT(15), |
| 709 | RX_FLAG_AMPDU_IS_ZEROLEN = BIT(16), |
| 710 | RX_FLAG_AMPDU_LAST_KNOWN = BIT(17), |
| 711 | RX_FLAG_AMPDU_IS_LAST = BIT(18), |
| 712 | RX_FLAG_AMPDU_DELIM_CRC_ERROR = BIT(19), |
| 713 | RX_FLAG_AMPDU_DELIM_CRC_KNOWN = BIT(20), |
Johannes Berg | 7ac1bd6 | 2007-09-14 11:10:25 -0400 | [diff] [blame] | 714 | }; |
| 715 | |
| 716 | /** |
| 717 | * struct ieee80211_rx_status - receive status |
| 718 | * |
| 719 | * The low-level driver should provide this information (the subset |
| 720 | * supported by hardware) to the 802.11 code with each received |
Johannes Berg | f1d58c2 | 2009-06-17 13:13:00 +0200 | [diff] [blame] | 721 | * frame, in the skb's control buffer (cb). |
Bruno Randolf | 566bfe5 | 2008-05-08 19:15:40 +0200 | [diff] [blame] | 722 | * |
Bruno Randolf | c132bec | 2008-02-18 11:20:51 +0900 | [diff] [blame] | 723 | * @mactime: value in microseconds of the 64-bit Time Synchronization Function |
| 724 | * (TSF) timer when the first data symbol (MPDU) arrived at the hardware. |
Johannes Berg | 8c358bc | 2012-05-22 22:13:05 +0200 | [diff] [blame] | 725 | * @device_timestamp: arbitrary timestamp for the device, mac80211 doesn't use |
| 726 | * it but can store it and pass it back to the driver for synchronisation |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 727 | * @band: the active band when this frame was received |
Johannes Berg | 7ac1bd6 | 2007-09-14 11:10:25 -0400 | [diff] [blame] | 728 | * @freq: frequency the radio was tuned to when receiving this frame, in MHz |
Bruno Randolf | 566bfe5 | 2008-05-08 19:15:40 +0200 | [diff] [blame] | 729 | * @signal: signal strength when receiving this frame, either in dBm, in dB or |
| 730 | * unspecified depending on the hardware capabilities flags |
| 731 | * @IEEE80211_HW_SIGNAL_* |
Johannes Berg | 7ac1bd6 | 2007-09-14 11:10:25 -0400 | [diff] [blame] | 732 | * @antenna: antenna used |
Jouni Malinen | 0fb8ca4 | 2008-12-12 14:38:33 +0200 | [diff] [blame] | 733 | * @rate_idx: index of data rate into band's supported rates or MCS index if |
| 734 | * HT rates are use (RX_FLAG_HT) |
Johannes Berg | 7ac1bd6 | 2007-09-14 11:10:25 -0400 | [diff] [blame] | 735 | * @flag: %RX_FLAG_* |
Johannes Berg | 554891e | 2010-09-24 12:38:25 +0200 | [diff] [blame] | 736 | * @rx_flags: internal RX flags for mac80211 |
Johannes Berg | 4c29867 | 2012-07-05 11:34:31 +0200 | [diff] [blame] | 737 | * @ampdu_reference: A-MPDU reference number, must be a different value for |
| 738 | * each A-MPDU but the same for each subframe within one A-MPDU |
| 739 | * @ampdu_delimiter_crc: A-MPDU delimiter CRC |
Johannes Berg | 7ac1bd6 | 2007-09-14 11:10:25 -0400 | [diff] [blame] | 740 | */ |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 741 | struct ieee80211_rx_status { |
| 742 | u64 mactime; |
Johannes Berg | 8c358bc | 2012-05-22 22:13:05 +0200 | [diff] [blame] | 743 | u32 device_timestamp; |
Johannes Berg | 4c29867 | 2012-07-05 11:34:31 +0200 | [diff] [blame] | 744 | u32 ampdu_reference; |
| 745 | u32 flag; |
Johannes Berg | 30f4229 | 2012-07-05 13:14:18 +0200 | [diff] [blame] | 746 | u16 freq; |
| 747 | u8 rate_idx; |
| 748 | u8 rx_flags; |
| 749 | u8 band; |
| 750 | u8 antenna; |
| 751 | s8 signal; |
Johannes Berg | 4c29867 | 2012-07-05 11:34:31 +0200 | [diff] [blame] | 752 | u8 ampdu_delimiter_crc; |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 753 | }; |
| 754 | |
Johannes Berg | 6b301cd | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 755 | /** |
Johannes Berg | 6b301cd | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 756 | * enum ieee80211_conf_flags - configuration flags |
| 757 | * |
| 758 | * Flags to define PHY configuration options |
| 759 | * |
Johannes Berg | 0869aea | 2009-10-28 10:03:35 +0100 | [diff] [blame] | 760 | * @IEEE80211_CONF_MONITOR: there's a monitor interface present -- use this |
| 761 | * to determine for example whether to calculate timestamps for packets |
| 762 | * or not, do not use instead of filter flags! |
Kalle Valo | c99445b | 2010-01-14 13:09:21 +0200 | [diff] [blame] | 763 | * @IEEE80211_CONF_PS: Enable 802.11 power save mode (managed mode only). |
| 764 | * This is the power save mode defined by IEEE 802.11-2007 section 11.2, |
| 765 | * meaning that the hardware still wakes up for beacons, is able to |
| 766 | * transmit frames and receive the possible acknowledgment frames. |
| 767 | * Not to be confused with hardware specific wakeup/sleep states, |
| 768 | * driver is responsible for that. See the section "Powersave support" |
| 769 | * for more. |
Johannes Berg | 5cff20e | 2009-04-29 12:26:17 +0200 | [diff] [blame] | 770 | * @IEEE80211_CONF_IDLE: The device is running, but idle; if the flag is set |
| 771 | * the driver should be prepared to handle configuration requests but |
| 772 | * may turn the device off as much as possible. Typically, this flag will |
| 773 | * be set when an interface is set UP but not associated or scanning, but |
| 774 | * it can also be unset in that case when monitor interfaces are active. |
Felix Fietkau | 4552124 | 2010-07-28 02:40:49 +0200 | [diff] [blame] | 775 | * @IEEE80211_CONF_OFFCHANNEL: The device is currently not on its main |
| 776 | * operating channel. |
Johannes Berg | 6b301cd | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 777 | */ |
| 778 | enum ieee80211_conf_flags { |
Johannes Berg | 0869aea | 2009-10-28 10:03:35 +0100 | [diff] [blame] | 779 | IEEE80211_CONF_MONITOR = (1<<0), |
Johannes Berg | ae5eb02 | 2008-10-14 16:58:37 +0200 | [diff] [blame] | 780 | IEEE80211_CONF_PS = (1<<1), |
Johannes Berg | 5cff20e | 2009-04-29 12:26:17 +0200 | [diff] [blame] | 781 | IEEE80211_CONF_IDLE = (1<<2), |
Felix Fietkau | 4552124 | 2010-07-28 02:40:49 +0200 | [diff] [blame] | 782 | IEEE80211_CONF_OFFCHANNEL = (1<<3), |
Johannes Berg | 6b301cd | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 783 | }; |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 784 | |
Johannes Berg | 7a5158e | 2008-10-08 10:59:33 +0200 | [diff] [blame] | 785 | |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 786 | /** |
Johannes Berg | e897558 | 2008-10-09 12:18:51 +0200 | [diff] [blame] | 787 | * enum ieee80211_conf_changed - denotes which configuration changed |
| 788 | * |
Johannes Berg | e897558 | 2008-10-09 12:18:51 +0200 | [diff] [blame] | 789 | * @IEEE80211_CONF_CHANGE_LISTEN_INTERVAL: the listen interval changed |
Johannes Berg | 0869aea | 2009-10-28 10:03:35 +0100 | [diff] [blame] | 790 | * @IEEE80211_CONF_CHANGE_MONITOR: the monitor flag changed |
Johannes Berg | e255d5e | 2009-04-22 12:40:07 +0200 | [diff] [blame] | 791 | * @IEEE80211_CONF_CHANGE_PS: the PS flag or dynamic PS timeout changed |
Johannes Berg | e897558 | 2008-10-09 12:18:51 +0200 | [diff] [blame] | 792 | * @IEEE80211_CONF_CHANGE_POWER: the TX power changed |
Johannes Berg | 4797938 | 2009-01-07 10:13:27 +0100 | [diff] [blame] | 793 | * @IEEE80211_CONF_CHANGE_CHANNEL: the channel/channel_type changed |
Johannes Berg | 9124b07 | 2008-10-14 19:17:54 +0200 | [diff] [blame] | 794 | * @IEEE80211_CONF_CHANGE_RETRY_LIMITS: retry limits changed |
Johannes Berg | 5cff20e | 2009-04-29 12:26:17 +0200 | [diff] [blame] | 795 | * @IEEE80211_CONF_CHANGE_IDLE: Idle flag changed |
Johannes Berg | 0f78231 | 2009-12-01 13:37:02 +0100 | [diff] [blame] | 796 | * @IEEE80211_CONF_CHANGE_SMPS: Spatial multiplexing powersave mode changed |
Johannes Berg | e897558 | 2008-10-09 12:18:51 +0200 | [diff] [blame] | 797 | */ |
| 798 | enum ieee80211_conf_changed { |
Johannes Berg | 0f78231 | 2009-12-01 13:37:02 +0100 | [diff] [blame] | 799 | IEEE80211_CONF_CHANGE_SMPS = BIT(1), |
Johannes Berg | e897558 | 2008-10-09 12:18:51 +0200 | [diff] [blame] | 800 | IEEE80211_CONF_CHANGE_LISTEN_INTERVAL = BIT(2), |
Johannes Berg | 0869aea | 2009-10-28 10:03:35 +0100 | [diff] [blame] | 801 | IEEE80211_CONF_CHANGE_MONITOR = BIT(3), |
Johannes Berg | e897558 | 2008-10-09 12:18:51 +0200 | [diff] [blame] | 802 | IEEE80211_CONF_CHANGE_PS = BIT(4), |
Johannes Berg | e255d5e | 2009-04-22 12:40:07 +0200 | [diff] [blame] | 803 | IEEE80211_CONF_CHANGE_POWER = BIT(5), |
| 804 | IEEE80211_CONF_CHANGE_CHANNEL = BIT(6), |
| 805 | IEEE80211_CONF_CHANGE_RETRY_LIMITS = BIT(7), |
Johannes Berg | 5cff20e | 2009-04-29 12:26:17 +0200 | [diff] [blame] | 806 | IEEE80211_CONF_CHANGE_IDLE = BIT(8), |
Johannes Berg | e897558 | 2008-10-09 12:18:51 +0200 | [diff] [blame] | 807 | }; |
| 808 | |
| 809 | /** |
Johannes Berg | 0f78231 | 2009-12-01 13:37:02 +0100 | [diff] [blame] | 810 | * enum ieee80211_smps_mode - spatial multiplexing power save mode |
| 811 | * |
Kalle Valo | 9d173fc | 2010-01-14 13:09:14 +0200 | [diff] [blame] | 812 | * @IEEE80211_SMPS_AUTOMATIC: automatic |
| 813 | * @IEEE80211_SMPS_OFF: off |
| 814 | * @IEEE80211_SMPS_STATIC: static |
| 815 | * @IEEE80211_SMPS_DYNAMIC: dynamic |
| 816 | * @IEEE80211_SMPS_NUM_MODES: internal, don't use |
Johannes Berg | 0f78231 | 2009-12-01 13:37:02 +0100 | [diff] [blame] | 817 | */ |
| 818 | enum ieee80211_smps_mode { |
| 819 | IEEE80211_SMPS_AUTOMATIC, |
| 820 | IEEE80211_SMPS_OFF, |
| 821 | IEEE80211_SMPS_STATIC, |
| 822 | IEEE80211_SMPS_DYNAMIC, |
| 823 | |
| 824 | /* keep last */ |
| 825 | IEEE80211_SMPS_NUM_MODES, |
| 826 | }; |
| 827 | |
| 828 | /** |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 829 | * struct ieee80211_conf - configuration of the device |
| 830 | * |
| 831 | * This struct indicates how the driver shall configure the hardware. |
| 832 | * |
Johannes Berg | 04fe203 | 2009-04-22 18:44:37 +0200 | [diff] [blame] | 833 | * @flags: configuration flags defined above |
| 834 | * |
Tomas Winkler | ea95bba | 2008-07-18 13:53:00 +0800 | [diff] [blame] | 835 | * @listen_interval: listen interval in units of beacon interval |
Johannes Berg | 9ccebe6 | 2009-04-23 10:32:36 +0200 | [diff] [blame] | 836 | * @max_sleep_period: the maximum number of beacon intervals to sleep for |
Johannes Berg | 04fe203 | 2009-04-22 18:44:37 +0200 | [diff] [blame] | 837 | * before checking the beacon for a TIM bit (managed mode only); this |
| 838 | * value will be only achievable between DTIM frames, the hardware |
| 839 | * needs to check for the multicast traffic bit in DTIM beacons. |
| 840 | * This variable is valid only when the CONF_PS flag is set. |
Johannes Berg | 56007a0 | 2010-01-26 14:19:52 +0100 | [diff] [blame] | 841 | * @ps_dtim_period: The DTIM period of the AP we're connected to, for use |
| 842 | * in power saving. Power saving will not be enabled until a beacon |
| 843 | * has been received and the DTIM period is known. |
Johannes Berg | 04fe203 | 2009-04-22 18:44:37 +0200 | [diff] [blame] | 844 | * @dynamic_ps_timeout: The dynamic powersave timeout (in ms), see the |
| 845 | * powersave documentation below. This variable is valid only when |
| 846 | * the CONF_PS flag is set. |
| 847 | * |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 848 | * @power_level: requested transmit power (in dBm) |
Johannes Berg | 04fe203 | 2009-04-22 18:44:37 +0200 | [diff] [blame] | 849 | * |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 850 | * @channel: the channel to tune to |
Johannes Berg | 4797938 | 2009-01-07 10:13:27 +0100 | [diff] [blame] | 851 | * @channel_type: the channel (HT) type |
Johannes Berg | 04fe203 | 2009-04-22 18:44:37 +0200 | [diff] [blame] | 852 | * |
Johannes Berg | 9124b07 | 2008-10-14 19:17:54 +0200 | [diff] [blame] | 853 | * @long_frame_max_tx_count: Maximum number of transmissions for a "long" frame |
| 854 | * (a frame not RTS protected), called "dot11LongRetryLimit" in 802.11, |
| 855 | * but actually means the number of transmissions not the number of retries |
| 856 | * @short_frame_max_tx_count: Maximum number of transmissions for a "short" |
| 857 | * frame, called "dot11ShortRetryLimit" in 802.11, but actually means the |
| 858 | * number of transmissions not the number of retries |
Johannes Berg | 0f78231 | 2009-12-01 13:37:02 +0100 | [diff] [blame] | 859 | * |
| 860 | * @smps_mode: spatial multiplexing powersave mode; note that |
| 861 | * %IEEE80211_SMPS_STATIC is used when the device is not |
| 862 | * configured for an HT channel |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 863 | */ |
| 864 | struct ieee80211_conf { |
Johannes Berg | 6b301cd | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 865 | u32 flags; |
Juuso Oikarinen | ff61638 | 2010-06-09 09:51:52 +0300 | [diff] [blame] | 866 | int power_level, dynamic_ps_timeout; |
Johannes Berg | 9ccebe6 | 2009-04-23 10:32:36 +0200 | [diff] [blame] | 867 | int max_sleep_period; |
Ron Rindjunsky | 10816d4 | 2007-11-26 16:14:30 +0200 | [diff] [blame] | 868 | |
Johannes Berg | e897558 | 2008-10-09 12:18:51 +0200 | [diff] [blame] | 869 | u16 listen_interval; |
Johannes Berg | 56007a0 | 2010-01-26 14:19:52 +0100 | [diff] [blame] | 870 | u8 ps_dtim_period; |
Johannes Berg | e897558 | 2008-10-09 12:18:51 +0200 | [diff] [blame] | 871 | |
Johannes Berg | 9124b07 | 2008-10-14 19:17:54 +0200 | [diff] [blame] | 872 | u8 long_frame_max_tx_count, short_frame_max_tx_count; |
| 873 | |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 874 | struct ieee80211_channel *channel; |
Johannes Berg | 4797938 | 2009-01-07 10:13:27 +0100 | [diff] [blame] | 875 | enum nl80211_channel_type channel_type; |
Johannes Berg | 0f78231 | 2009-12-01 13:37:02 +0100 | [diff] [blame] | 876 | enum ieee80211_smps_mode smps_mode; |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 877 | }; |
| 878 | |
| 879 | /** |
Johannes Berg | 5ce6e43 | 2010-05-11 16:20:57 +0200 | [diff] [blame] | 880 | * struct ieee80211_channel_switch - holds the channel switch data |
| 881 | * |
| 882 | * The information provided in this structure is required for channel switch |
| 883 | * operation. |
| 884 | * |
| 885 | * @timestamp: value in microseconds of the 64-bit Time Synchronization |
| 886 | * Function (TSF) timer when the frame containing the channel switch |
| 887 | * announcement was received. This is simply the rx.mactime parameter |
| 888 | * the driver passed into mac80211. |
| 889 | * @block_tx: Indicates whether transmission must be blocked before the |
| 890 | * scheduled channel switch, as indicated by the AP. |
| 891 | * @channel: the new channel to switch to |
| 892 | * @count: the number of TBTT's until the channel switch event |
| 893 | */ |
| 894 | struct ieee80211_channel_switch { |
| 895 | u64 timestamp; |
| 896 | bool block_tx; |
| 897 | struct ieee80211_channel *channel; |
| 898 | u8 count; |
| 899 | }; |
| 900 | |
| 901 | /** |
Johannes Berg | c1288b1 | 2012-01-19 09:29:57 +0100 | [diff] [blame] | 902 | * enum ieee80211_vif_flags - virtual interface flags |
| 903 | * |
| 904 | * @IEEE80211_VIF_BEACON_FILTER: the device performs beacon filtering |
| 905 | * on this virtual interface to avoid unnecessary CPU wakeups |
Johannes Berg | ea08635 | 2012-01-19 09:29:58 +0100 | [diff] [blame] | 906 | * @IEEE80211_VIF_SUPPORTS_CQM_RSSI: the device can do connection quality |
| 907 | * monitoring on this virtual interface -- i.e. it can monitor |
| 908 | * connection quality related parameters, such as the RSSI level and |
| 909 | * provide notifications if configured trigger levels are reached. |
Johannes Berg | c1288b1 | 2012-01-19 09:29:57 +0100 | [diff] [blame] | 910 | */ |
| 911 | enum ieee80211_vif_flags { |
| 912 | IEEE80211_VIF_BEACON_FILTER = BIT(0), |
Johannes Berg | ea08635 | 2012-01-19 09:29:58 +0100 | [diff] [blame] | 913 | IEEE80211_VIF_SUPPORTS_CQM_RSSI = BIT(1), |
Johannes Berg | c1288b1 | 2012-01-19 09:29:57 +0100 | [diff] [blame] | 914 | }; |
| 915 | |
| 916 | /** |
Johannes Berg | 32bfd35 | 2007-12-19 01:31:26 +0100 | [diff] [blame] | 917 | * struct ieee80211_vif - per-interface data |
| 918 | * |
| 919 | * Data in this structure is continually present for driver |
| 920 | * use during the life of a virtual interface. |
| 921 | * |
Johannes Berg | 51fb61e | 2007-12-19 01:31:27 +0100 | [diff] [blame] | 922 | * @type: type of this virtual interface |
Johannes Berg | bda3933 | 2008-10-11 01:51:51 +0200 | [diff] [blame] | 923 | * @bss_conf: BSS configuration for this interface, either our own |
| 924 | * or the BSS we're associated to |
Johannes Berg | 47846c9 | 2009-11-25 17:46:19 +0100 | [diff] [blame] | 925 | * @addr: address of this interface |
Johannes Berg | 2ca27bc | 2010-09-16 14:58:23 +0200 | [diff] [blame] | 926 | * @p2p: indicates whether this AP or STA interface is a p2p |
| 927 | * interface, i.e. a GO or p2p-sta respectively |
Johannes Berg | c1288b1 | 2012-01-19 09:29:57 +0100 | [diff] [blame] | 928 | * @driver_flags: flags/capabilities the driver has for this interface, |
| 929 | * these need to be set (or cleared) when the interface is added |
| 930 | * or, if supported by the driver, the interface type is changed |
| 931 | * at runtime, mac80211 will never touch this field |
Johannes Berg | 3a25a8c | 2012-04-03 16:28:50 +0200 | [diff] [blame] | 932 | * @hw_queue: hardware queue for each AC |
| 933 | * @cab_queue: content-after-beacon (DTIM beacon really) queue, AP mode only |
Johannes Berg | 32bfd35 | 2007-12-19 01:31:26 +0100 | [diff] [blame] | 934 | * @drv_priv: data area for driver use, will always be aligned to |
| 935 | * sizeof(void *). |
| 936 | */ |
| 937 | struct ieee80211_vif { |
Johannes Berg | 05c914f | 2008-09-11 00:01:58 +0200 | [diff] [blame] | 938 | enum nl80211_iftype type; |
Johannes Berg | bda3933 | 2008-10-11 01:51:51 +0200 | [diff] [blame] | 939 | struct ieee80211_bss_conf bss_conf; |
Johannes Berg | 47846c9 | 2009-11-25 17:46:19 +0100 | [diff] [blame] | 940 | u8 addr[ETH_ALEN]; |
Johannes Berg | 2ca27bc | 2010-09-16 14:58:23 +0200 | [diff] [blame] | 941 | bool p2p; |
Johannes Berg | 3a25a8c | 2012-04-03 16:28:50 +0200 | [diff] [blame] | 942 | |
| 943 | u8 cab_queue; |
| 944 | u8 hw_queue[IEEE80211_NUM_ACS]; |
| 945 | |
Johannes Berg | c1288b1 | 2012-01-19 09:29:57 +0100 | [diff] [blame] | 946 | u32 driver_flags; |
Johannes Berg | 3a25a8c | 2012-04-03 16:28:50 +0200 | [diff] [blame] | 947 | |
Johannes Berg | 32bfd35 | 2007-12-19 01:31:26 +0100 | [diff] [blame] | 948 | /* must be last */ |
| 949 | u8 drv_priv[0] __attribute__((__aligned__(sizeof(void *)))); |
| 950 | }; |
| 951 | |
Johannes Berg | 902acc7 | 2008-02-23 15:17:19 +0100 | [diff] [blame] | 952 | static inline bool ieee80211_vif_is_mesh(struct ieee80211_vif *vif) |
| 953 | { |
| 954 | #ifdef CONFIG_MAC80211_MESH |
Johannes Berg | 05c914f | 2008-09-11 00:01:58 +0200 | [diff] [blame] | 955 | return vif->type == NL80211_IFTYPE_MESH_POINT; |
Johannes Berg | 902acc7 | 2008-02-23 15:17:19 +0100 | [diff] [blame] | 956 | #endif |
| 957 | return false; |
| 958 | } |
| 959 | |
Johannes Berg | 32bfd35 | 2007-12-19 01:31:26 +0100 | [diff] [blame] | 960 | /** |
Johannes Berg | 7ac1bd6 | 2007-09-14 11:10:25 -0400 | [diff] [blame] | 961 | * enum ieee80211_key_flags - key flags |
| 962 | * |
| 963 | * These flags are used for communication about keys between the driver |
| 964 | * and mac80211, with the @flags parameter of &struct ieee80211_key_conf. |
| 965 | * |
| 966 | * @IEEE80211_KEY_FLAG_WMM_STA: Set by mac80211, this flag indicates |
| 967 | * that the STA this key will be used with could be using QoS. |
| 968 | * @IEEE80211_KEY_FLAG_GENERATE_IV: This flag should be set by the |
| 969 | * driver to indicate that it requires IV generation for this |
| 970 | * particular key. |
| 971 | * @IEEE80211_KEY_FLAG_GENERATE_MMIC: This flag should be set by |
| 972 | * the driver for a TKIP key if it requires Michael MIC |
| 973 | * generation in software. |
Ivo van Doorn | c6adbd2 | 2008-04-17 21:11:18 +0200 | [diff] [blame] | 974 | * @IEEE80211_KEY_FLAG_PAIRWISE: Set by mac80211, this flag indicates |
| 975 | * that the key is pairwise rather then a shared key. |
Johannes Berg | e548c49 | 2012-09-04 17:08:23 +0200 | [diff] [blame] | 976 | * @IEEE80211_KEY_FLAG_SW_MGMT_TX: This flag should be set by the driver for a |
Jouni Malinen | 1f7d77a | 2009-01-08 13:32:10 +0200 | [diff] [blame] | 977 | * CCMP key if it requires CCMP encryption of management frames (MFP) to |
| 978 | * be done in software. |
Arik Nemtsov | 077a915 | 2011-10-23 08:21:41 +0200 | [diff] [blame] | 979 | * @IEEE80211_KEY_FLAG_PUT_IV_SPACE: This flag should be set by the driver |
Janusz.Dziedzic@tieto.com | ee70108 | 2012-05-09 08:11:20 +0300 | [diff] [blame] | 980 | * if space should be prepared for the IV, but the IV |
Arik Nemtsov | 077a915 | 2011-10-23 08:21:41 +0200 | [diff] [blame] | 981 | * itself should not be generated. Do not set together with |
| 982 | * @IEEE80211_KEY_FLAG_GENERATE_IV on the same key. |
Johannes Berg | e548c49 | 2012-09-04 17:08:23 +0200 | [diff] [blame] | 983 | * @IEEE80211_KEY_FLAG_RX_MGMT: This key will be used to decrypt received |
| 984 | * management frames. The flag can help drivers that have a hardware |
| 985 | * crypto implementation that doesn't deal with management frames |
| 986 | * properly by allowing them to not upload the keys to hardware and |
| 987 | * fall back to software crypto. Note that this flag deals only with |
| 988 | * RX, if your crypto engine can't deal with TX you can also set the |
| 989 | * %IEEE80211_KEY_FLAG_SW_MGMT_TX flag to encrypt such frames in SW. |
Johannes Berg | 7ac1bd6 | 2007-09-14 11:10:25 -0400 | [diff] [blame] | 990 | */ |
| 991 | enum ieee80211_key_flags { |
| 992 | IEEE80211_KEY_FLAG_WMM_STA = 1<<0, |
| 993 | IEEE80211_KEY_FLAG_GENERATE_IV = 1<<1, |
| 994 | IEEE80211_KEY_FLAG_GENERATE_MMIC= 1<<2, |
Ivo van Doorn | c6adbd2 | 2008-04-17 21:11:18 +0200 | [diff] [blame] | 995 | IEEE80211_KEY_FLAG_PAIRWISE = 1<<3, |
Johannes Berg | e548c49 | 2012-09-04 17:08:23 +0200 | [diff] [blame] | 996 | IEEE80211_KEY_FLAG_SW_MGMT_TX = 1<<4, |
Arik Nemtsov | 077a915 | 2011-10-23 08:21:41 +0200 | [diff] [blame] | 997 | IEEE80211_KEY_FLAG_PUT_IV_SPACE = 1<<5, |
Johannes Berg | e548c49 | 2012-09-04 17:08:23 +0200 | [diff] [blame] | 998 | IEEE80211_KEY_FLAG_RX_MGMT = 1<<6, |
Johannes Berg | 7ac1bd6 | 2007-09-14 11:10:25 -0400 | [diff] [blame] | 999 | }; |
| 1000 | |
| 1001 | /** |
| 1002 | * struct ieee80211_key_conf - key information |
| 1003 | * |
| 1004 | * This key information is given by mac80211 to the driver by |
| 1005 | * the set_key() callback in &struct ieee80211_ops. |
| 1006 | * |
| 1007 | * @hw_key_idx: To be set by the driver, this is the key index the driver |
| 1008 | * 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] | 1009 | * encrypted in hardware. |
Johannes Berg | 97359d1 | 2010-08-10 09:46:38 +0200 | [diff] [blame] | 1010 | * @cipher: The key's cipher suite selector. |
Johannes Berg | 7ac1bd6 | 2007-09-14 11:10:25 -0400 | [diff] [blame] | 1011 | * @flags: key flags, see &enum ieee80211_key_flags. |
| 1012 | * @keyidx: the key index (0-3) |
| 1013 | * @keylen: key material length |
Luis R. Rodriguez | ffd7891 | 2008-06-21 10:02:46 -0400 | [diff] [blame] | 1014 | * @key: key material. For ALG_TKIP the key is encoded as a 256-bit (32 byte) |
| 1015 | * data block: |
| 1016 | * - Temporal Encryption Key (128 bits) |
| 1017 | * - Temporal Authenticator Tx MIC Key (64 bits) |
| 1018 | * - Temporal Authenticator Rx MIC Key (64 bits) |
Johannes Berg | dc822b5 | 2008-12-29 12:55:09 +0100 | [diff] [blame] | 1019 | * @icv_len: The ICV length for this key type |
| 1020 | * @iv_len: The IV length for this key type |
Johannes Berg | 7ac1bd6 | 2007-09-14 11:10:25 -0400 | [diff] [blame] | 1021 | */ |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1022 | struct ieee80211_key_conf { |
Johannes Berg | 97359d1 | 2010-08-10 09:46:38 +0200 | [diff] [blame] | 1023 | u32 cipher; |
Felix Fietkau | 76708de | 2008-10-05 18:02:48 +0200 | [diff] [blame] | 1024 | u8 icv_len; |
| 1025 | u8 iv_len; |
Johannes Berg | 6a7664d | 2007-09-14 11:10:25 -0400 | [diff] [blame] | 1026 | u8 hw_key_idx; |
Johannes Berg | 11a843b | 2007-08-28 17:01:55 -0400 | [diff] [blame] | 1027 | u8 flags; |
Johannes Berg | 11a843b | 2007-08-28 17:01:55 -0400 | [diff] [blame] | 1028 | s8 keyidx; |
Johannes Berg | 11a843b | 2007-08-28 17:01:55 -0400 | [diff] [blame] | 1029 | u8 keylen; |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1030 | u8 key[0]; |
| 1031 | }; |
| 1032 | |
Johannes Berg | 7ac1bd6 | 2007-09-14 11:10:25 -0400 | [diff] [blame] | 1033 | /** |
| 1034 | * enum set_key_cmd - key command |
| 1035 | * |
| 1036 | * Used with the set_key() callback in &struct ieee80211_ops, this |
| 1037 | * indicates whether a key is being removed or added. |
| 1038 | * |
| 1039 | * @SET_KEY: a key is set |
| 1040 | * @DISABLE_KEY: a key must be disabled |
| 1041 | */ |
Johannes Berg | ea49c35 | 2007-09-18 17:29:21 -0400 | [diff] [blame] | 1042 | enum set_key_cmd { |
Johannes Berg | 11a843b | 2007-08-28 17:01:55 -0400 | [diff] [blame] | 1043 | SET_KEY, DISABLE_KEY, |
Johannes Berg | ea49c35 | 2007-09-18 17:29:21 -0400 | [diff] [blame] | 1044 | }; |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1045 | |
Tomas Winkler | 478f8d2 | 2007-09-30 13:52:37 +0200 | [diff] [blame] | 1046 | /** |
Johannes Berg | f09603a | 2012-01-20 13:55:21 +0100 | [diff] [blame] | 1047 | * enum ieee80211_sta_state - station state |
| 1048 | * |
| 1049 | * @IEEE80211_STA_NOTEXIST: station doesn't exist at all, |
| 1050 | * this is a special state for add/remove transitions |
| 1051 | * @IEEE80211_STA_NONE: station exists without special state |
| 1052 | * @IEEE80211_STA_AUTH: station is authenticated |
| 1053 | * @IEEE80211_STA_ASSOC: station is associated |
| 1054 | * @IEEE80211_STA_AUTHORIZED: station is authorized (802.1X) |
| 1055 | */ |
| 1056 | enum ieee80211_sta_state { |
| 1057 | /* NOTE: These need to be ordered correctly! */ |
| 1058 | IEEE80211_STA_NOTEXIST, |
| 1059 | IEEE80211_STA_NONE, |
| 1060 | IEEE80211_STA_AUTH, |
| 1061 | IEEE80211_STA_ASSOC, |
| 1062 | IEEE80211_STA_AUTHORIZED, |
| 1063 | }; |
| 1064 | |
| 1065 | /** |
Johannes Berg | 17741cd | 2008-09-11 00:02:02 +0200 | [diff] [blame] | 1066 | * struct ieee80211_sta - station table entry |
| 1067 | * |
| 1068 | * A station table entry represents a station we are possibly |
| 1069 | * communicating with. Since stations are RCU-managed in |
| 1070 | * mac80211, any ieee80211_sta pointer you get access to must |
| 1071 | * either be protected by rcu_read_lock() explicitly or implicitly, |
| 1072 | * or you must take good care to not use such a pointer after a |
Johannes Berg | 34e8950 | 2010-02-03 13:59:58 +0100 | [diff] [blame] | 1073 | * call to your sta_remove callback that removed it. |
Johannes Berg | 17741cd | 2008-09-11 00:02:02 +0200 | [diff] [blame] | 1074 | * |
| 1075 | * @addr: MAC address |
| 1076 | * @aid: AID we assigned to the station if we're an AP |
Johannes Berg | 323ce79 | 2008-09-11 02:45:11 +0200 | [diff] [blame] | 1077 | * @supp_rates: Bitmap of supported rates (per band) |
Johannes Berg | ae5eb02 | 2008-10-14 16:58:37 +0200 | [diff] [blame] | 1078 | * @ht_cap: HT capabilities of this STA; restricted to our own TX capabilities |
Arik Nemtsov | 39df600 | 2011-06-27 23:58:45 +0300 | [diff] [blame] | 1079 | * @wme: indicates whether the STA supports WME. Only valid during AP-mode. |
Johannes Berg | 17741cd | 2008-09-11 00:02:02 +0200 | [diff] [blame] | 1080 | * @drv_priv: data area for driver use, will always be aligned to |
| 1081 | * sizeof(void *), size is determined in hw information. |
Eliad Peller | 910868d | 2011-09-11 09:46:55 +0300 | [diff] [blame] | 1082 | * @uapsd_queues: bitmap of queues configured for uapsd. Only valid |
| 1083 | * if wme is supported. |
| 1084 | * @max_sp: max Service Period. Only valid if wme is supported. |
Johannes Berg | 17741cd | 2008-09-11 00:02:02 +0200 | [diff] [blame] | 1085 | */ |
| 1086 | struct ieee80211_sta { |
Johannes Berg | 881d948 | 2009-01-21 15:13:48 +0100 | [diff] [blame] | 1087 | u32 supp_rates[IEEE80211_NUM_BANDS]; |
Johannes Berg | 17741cd | 2008-09-11 00:02:02 +0200 | [diff] [blame] | 1088 | u8 addr[ETH_ALEN]; |
| 1089 | u16 aid; |
Johannes Berg | d9fe60d | 2008-10-09 12:13:49 +0200 | [diff] [blame] | 1090 | struct ieee80211_sta_ht_cap ht_cap; |
Arik Nemtsov | 39df600 | 2011-06-27 23:58:45 +0300 | [diff] [blame] | 1091 | bool wme; |
Eliad Peller | 9533b4a | 2011-08-23 14:37:47 +0300 | [diff] [blame] | 1092 | u8 uapsd_queues; |
| 1093 | u8 max_sp; |
Johannes Berg | 17741cd | 2008-09-11 00:02:02 +0200 | [diff] [blame] | 1094 | |
| 1095 | /* must be last */ |
| 1096 | u8 drv_priv[0] __attribute__((__aligned__(sizeof(void *)))); |
| 1097 | }; |
| 1098 | |
| 1099 | /** |
Tomas Winkler | 478f8d2 | 2007-09-30 13:52:37 +0200 | [diff] [blame] | 1100 | * enum sta_notify_cmd - sta notify command |
| 1101 | * |
| 1102 | * Used with the sta_notify() callback in &struct ieee80211_ops, this |
Sujith | 38a6cc7 | 2010-05-19 11:32:30 +0530 | [diff] [blame] | 1103 | * indicates if an associated station made a power state transition. |
Tomas Winkler | 478f8d2 | 2007-09-30 13:52:37 +0200 | [diff] [blame] | 1104 | * |
Christian Lamparter | 4571d3b | 2008-11-30 00:48:41 +0100 | [diff] [blame] | 1105 | * @STA_NOTIFY_SLEEP: a station is now sleeping |
| 1106 | * @STA_NOTIFY_AWAKE: a sleeping station woke up |
| 1107 | */ |
Christian Lamparter | 89fad57 | 2008-12-09 16:28:06 +0100 | [diff] [blame] | 1108 | enum sta_notify_cmd { |
Christian Lamparter | 4571d3b | 2008-11-30 00:48:41 +0100 | [diff] [blame] | 1109 | STA_NOTIFY_SLEEP, STA_NOTIFY_AWAKE, |
| 1110 | }; |
| 1111 | |
| 1112 | /** |
Thomas Huehn | 36323f8 | 2012-07-23 21:33:42 +0200 | [diff] [blame] | 1113 | * struct ieee80211_tx_control - TX control data |
| 1114 | * |
| 1115 | * @sta: station table entry, this sta pointer may be NULL and |
| 1116 | * it is not allowed to copy the pointer, due to RCU. |
| 1117 | */ |
| 1118 | struct ieee80211_tx_control { |
| 1119 | struct ieee80211_sta *sta; |
| 1120 | }; |
| 1121 | |
| 1122 | /** |
Johannes Berg | 1bc0826 | 2007-09-18 17:29:15 -0400 | [diff] [blame] | 1123 | * enum ieee80211_hw_flags - hardware flags |
| 1124 | * |
| 1125 | * These flags are used to indicate hardware capabilities to |
| 1126 | * the stack. Generally, flags here should have their meaning |
| 1127 | * done in a way that the simplest hardware doesn't need setting |
| 1128 | * any particular flags. There are some exceptions to this rule, |
| 1129 | * however, so you are advised to review these flags carefully. |
| 1130 | * |
Johannes Berg | af65cd96 | 2009-11-17 18:18:36 +0100 | [diff] [blame] | 1131 | * @IEEE80211_HW_HAS_RATE_CONTROL: |
| 1132 | * The hardware or firmware includes rate control, and cannot be |
| 1133 | * controlled by the stack. As such, no rate control algorithm |
| 1134 | * should be instantiated, and the TX rate reported to userspace |
| 1135 | * will be taken from the TX status instead of the rate control |
| 1136 | * algorithm. |
| 1137 | * Note that this requires that the driver implement a number of |
| 1138 | * callbacks so it has the correct information, it needs to have |
| 1139 | * the @set_rts_threshold callback and must look at the BSS config |
| 1140 | * @use_cts_prot for G/N protection, @use_short_slot for slot |
| 1141 | * timing in 2.4 GHz and @use_short_preamble for preambles for |
| 1142 | * CCK frames. |
| 1143 | * |
Johannes Berg | 1bc0826 | 2007-09-18 17:29:15 -0400 | [diff] [blame] | 1144 | * @IEEE80211_HW_RX_INCLUDES_FCS: |
| 1145 | * Indicates that received frames passed to the stack include |
| 1146 | * the FCS at the end. |
| 1147 | * |
| 1148 | * @IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING: |
| 1149 | * Some wireless LAN chipsets buffer broadcast/multicast frames |
| 1150 | * for power saving stations in the hardware/firmware and others |
| 1151 | * rely on the host system for such buffering. This option is used |
| 1152 | * to configure the IEEE 802.11 upper layer to buffer broadcast and |
| 1153 | * multicast frames when there are power saving stations so that |
Luis R. Rodriguez | 546c80c9 | 2008-08-14 11:43:20 -0700 | [diff] [blame] | 1154 | * the driver can fetch them with ieee80211_get_buffered_bc(). |
Johannes Berg | 1bc0826 | 2007-09-18 17:29:15 -0400 | [diff] [blame] | 1155 | * |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 1156 | * @IEEE80211_HW_2GHZ_SHORT_SLOT_INCAPABLE: |
| 1157 | * Hardware is not capable of short slot operation on the 2.4 GHz band. |
| 1158 | * |
| 1159 | * @IEEE80211_HW_2GHZ_SHORT_PREAMBLE_INCAPABLE: |
| 1160 | * Hardware is not capable of receiving frames with short preamble on |
| 1161 | * the 2.4 GHz band. |
Bruno Randolf | 566bfe5 | 2008-05-08 19:15:40 +0200 | [diff] [blame] | 1162 | * |
| 1163 | * @IEEE80211_HW_SIGNAL_UNSPEC: |
| 1164 | * Hardware can provide signal values but we don't know its units. We |
| 1165 | * expect values between 0 and @max_signal. |
| 1166 | * If possible please provide dB or dBm instead. |
| 1167 | * |
Bruno Randolf | 566bfe5 | 2008-05-08 19:15:40 +0200 | [diff] [blame] | 1168 | * @IEEE80211_HW_SIGNAL_DBM: |
| 1169 | * Hardware gives signal values in dBm, decibel difference from |
| 1170 | * one milliwatt. This is the preferred method since it is standardized |
| 1171 | * between different devices. @max_signal does not need to be set. |
| 1172 | * |
Tomas Winkler | 06ff47b | 2008-06-18 17:53:44 +0300 | [diff] [blame] | 1173 | * @IEEE80211_HW_SPECTRUM_MGMT: |
| 1174 | * Hardware supports spectrum management defined in 802.11h |
| 1175 | * Measurement, Channel Switch, Quieting, TPC |
Sujith | 8b30b1f | 2008-10-24 09:55:27 +0530 | [diff] [blame] | 1176 | * |
| 1177 | * @IEEE80211_HW_AMPDU_AGGREGATION: |
| 1178 | * Hardware supports 11n A-MPDU aggregation. |
Kalle Valo | 520eb82 | 2008-12-18 23:35:27 +0200 | [diff] [blame] | 1179 | * |
Johannes Berg | 4be8c38 | 2009-01-07 18:28:20 +0100 | [diff] [blame] | 1180 | * @IEEE80211_HW_SUPPORTS_PS: |
| 1181 | * Hardware has power save support (i.e. can go to sleep). |
| 1182 | * |
| 1183 | * @IEEE80211_HW_PS_NULLFUNC_STACK: |
| 1184 | * Hardware requires nullfunc frame handling in stack, implies |
| 1185 | * stack support for dynamic PS. |
| 1186 | * |
| 1187 | * @IEEE80211_HW_SUPPORTS_DYNAMIC_PS: |
| 1188 | * Hardware has support for dynamic PS. |
Jouni Malinen | 4375d08 | 2009-01-08 13:32:11 +0200 | [diff] [blame] | 1189 | * |
| 1190 | * @IEEE80211_HW_MFP_CAPABLE: |
| 1191 | * Hardware supports management frame protection (MFP, IEEE 802.11w). |
Kalle Valo | 04de838 | 2009-03-22 21:57:35 +0200 | [diff] [blame] | 1192 | * |
Johannes Berg | 0f78231 | 2009-12-01 13:37:02 +0100 | [diff] [blame] | 1193 | * @IEEE80211_HW_SUPPORTS_STATIC_SMPS: |
| 1194 | * Hardware supports static spatial multiplexing powersave, |
| 1195 | * ie. can turn off all but one chain even on HT connections |
| 1196 | * that should be using more chains. |
| 1197 | * |
| 1198 | * @IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS: |
| 1199 | * Hardware supports dynamic spatial multiplexing powersave, |
| 1200 | * ie. can turn off all but one chain and then wake the rest |
| 1201 | * up as required after, for example, rts/cts handshake. |
Kalle Valo | ab13315 | 2010-01-12 10:42:31 +0200 | [diff] [blame] | 1202 | * |
| 1203 | * @IEEE80211_HW_SUPPORTS_UAPSD: |
| 1204 | * Hardware supports Unscheduled Automatic Power Save Delivery |
| 1205 | * (U-APSD) in managed mode. The mode is configured with |
| 1206 | * conf_tx() operation. |
Vivek Natarajan | 375177b | 2010-02-09 14:50:28 +0530 | [diff] [blame] | 1207 | * |
| 1208 | * @IEEE80211_HW_REPORTS_TX_ACK_STATUS: |
| 1209 | * Hardware can provide ack status reports of Tx frames to |
| 1210 | * the stack. |
| 1211 | * |
Juuso Oikarinen | 1e4dcd0 | 2010-03-19 07:14:53 +0200 | [diff] [blame] | 1212 | * @IEEE80211_HW_CONNECTION_MONITOR: |
| 1213 | * The hardware performs its own connection monitoring, including |
| 1214 | * periodic keep-alives to the AP and probing the AP on beacon loss. |
| 1215 | * When this flag is set, signaling beacon-loss will cause an immediate |
| 1216 | * change to disassociated state. |
Juuso Oikarinen | a97c13c | 2010-03-23 09:02:34 +0200 | [diff] [blame] | 1217 | * |
Johannes Berg | e5b900d | 2010-07-29 16:08:55 +0200 | [diff] [blame] | 1218 | * @IEEE80211_HW_NEED_DTIM_PERIOD: |
| 1219 | * This device needs to know the DTIM period for the BSS before |
| 1220 | * associating. |
Johannes Berg | e31b821 | 2010-10-05 19:39:30 +0200 | [diff] [blame] | 1221 | * |
| 1222 | * @IEEE80211_HW_SUPPORTS_PER_STA_GTK: The device's crypto engine supports |
| 1223 | * per-station GTKs as used by IBSS RSN or during fast transition. If |
| 1224 | * the device doesn't support per-station GTKs, but can be asked not |
| 1225 | * to decrypt group addressed frames, then IBSS RSN support is still |
| 1226 | * possible but software crypto will be used. Advertise the wiphy flag |
| 1227 | * only in that case. |
Arik Nemtsov | d057e5a | 2011-01-31 22:29:13 +0200 | [diff] [blame] | 1228 | * |
| 1229 | * @IEEE80211_HW_AP_LINK_PS: When operating in AP mode the device |
| 1230 | * autonomously manages the PS status of connected stations. When |
| 1231 | * this flag is set mac80211 will not trigger PS mode for connected |
| 1232 | * stations based on the PM bit of incoming frames. |
| 1233 | * Use ieee80211_start_ps()/ieee8021_end_ps() to manually configure |
| 1234 | * the PS mode of connected stations. |
Arik Nemtsov | edf6b78 | 2011-08-30 09:32:38 +0300 | [diff] [blame] | 1235 | * |
| 1236 | * @IEEE80211_HW_TX_AMPDU_SETUP_IN_HW: The device handles TX A-MPDU session |
| 1237 | * setup strictly in HW. mac80211 should not attempt to do this in |
| 1238 | * software. |
Eliad Peller | 885bd8e | 2012-02-02 17:44:55 +0200 | [diff] [blame] | 1239 | * |
| 1240 | * @IEEE80211_HW_SCAN_WHILE_IDLE: The device can do hw scan while |
| 1241 | * being idle (i.e. mac80211 doesn't have to go idle-off during the |
| 1242 | * the scan). |
Johannes Berg | 4b6f1dd | 2012-04-03 14:35:57 +0200 | [diff] [blame] | 1243 | * |
| 1244 | * @IEEE80211_HW_WANT_MONITOR_VIF: The driver would like to be informed of |
| 1245 | * a virtual monitor interface when monitor interfaces are the only |
| 1246 | * active interfaces. |
Johannes Berg | 3a25a8c | 2012-04-03 16:28:50 +0200 | [diff] [blame] | 1247 | * |
| 1248 | * @IEEE80211_HW_QUEUE_CONTROL: The driver wants to control per-interface |
| 1249 | * queue mapping in order to use different queues (not just one per AC) |
| 1250 | * for different virtual interfaces. See the doc section on HW queue |
| 1251 | * control for more details. |
Johannes Berg | 6d71117 | 2012-06-19 17:19:44 +0200 | [diff] [blame] | 1252 | * |
| 1253 | * @IEEE80211_HW_P2P_DEV_ADDR_FOR_INTF: Use the P2P Device address for any |
| 1254 | * P2P Interface. This will be honoured even if more than one interface |
| 1255 | * is supported. |
Johannes Berg | 1bc0826 | 2007-09-18 17:29:15 -0400 | [diff] [blame] | 1256 | */ |
| 1257 | enum ieee80211_hw_flags { |
Johannes Berg | af65cd96 | 2009-11-17 18:18:36 +0100 | [diff] [blame] | 1258 | IEEE80211_HW_HAS_RATE_CONTROL = 1<<0, |
Johannes Berg | 1bc0826 | 2007-09-18 17:29:15 -0400 | [diff] [blame] | 1259 | IEEE80211_HW_RX_INCLUDES_FCS = 1<<1, |
| 1260 | IEEE80211_HW_HOST_BROADCAST_PS_BUFFERING = 1<<2, |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 1261 | IEEE80211_HW_2GHZ_SHORT_SLOT_INCAPABLE = 1<<3, |
| 1262 | IEEE80211_HW_2GHZ_SHORT_PREAMBLE_INCAPABLE = 1<<4, |
Bruno Randolf | 566bfe5 | 2008-05-08 19:15:40 +0200 | [diff] [blame] | 1263 | IEEE80211_HW_SIGNAL_UNSPEC = 1<<5, |
Johannes Berg | 7fee537 | 2009-01-30 11:13:06 +0100 | [diff] [blame] | 1264 | IEEE80211_HW_SIGNAL_DBM = 1<<6, |
Johannes Berg | e5b900d | 2010-07-29 16:08:55 +0200 | [diff] [blame] | 1265 | IEEE80211_HW_NEED_DTIM_PERIOD = 1<<7, |
Johannes Berg | 7fee537 | 2009-01-30 11:13:06 +0100 | [diff] [blame] | 1266 | IEEE80211_HW_SPECTRUM_MGMT = 1<<8, |
| 1267 | IEEE80211_HW_AMPDU_AGGREGATION = 1<<9, |
| 1268 | IEEE80211_HW_SUPPORTS_PS = 1<<10, |
| 1269 | IEEE80211_HW_PS_NULLFUNC_STACK = 1<<11, |
| 1270 | IEEE80211_HW_SUPPORTS_DYNAMIC_PS = 1<<12, |
| 1271 | IEEE80211_HW_MFP_CAPABLE = 1<<13, |
Johannes Berg | 4b6f1dd | 2012-04-03 14:35:57 +0200 | [diff] [blame] | 1272 | IEEE80211_HW_WANT_MONITOR_VIF = 1<<14, |
Johannes Berg | 0f78231 | 2009-12-01 13:37:02 +0100 | [diff] [blame] | 1273 | IEEE80211_HW_SUPPORTS_STATIC_SMPS = 1<<15, |
| 1274 | IEEE80211_HW_SUPPORTS_DYNAMIC_SMPS = 1<<16, |
Kalle Valo | ab13315 | 2010-01-12 10:42:31 +0200 | [diff] [blame] | 1275 | IEEE80211_HW_SUPPORTS_UAPSD = 1<<17, |
Vivek Natarajan | 375177b | 2010-02-09 14:50:28 +0530 | [diff] [blame] | 1276 | IEEE80211_HW_REPORTS_TX_ACK_STATUS = 1<<18, |
Juuso Oikarinen | 1e4dcd0 | 2010-03-19 07:14:53 +0200 | [diff] [blame] | 1277 | IEEE80211_HW_CONNECTION_MONITOR = 1<<19, |
Johannes Berg | 3a25a8c | 2012-04-03 16:28:50 +0200 | [diff] [blame] | 1278 | IEEE80211_HW_QUEUE_CONTROL = 1<<20, |
Johannes Berg | e31b821 | 2010-10-05 19:39:30 +0200 | [diff] [blame] | 1279 | IEEE80211_HW_SUPPORTS_PER_STA_GTK = 1<<21, |
Arik Nemtsov | d057e5a | 2011-01-31 22:29:13 +0200 | [diff] [blame] | 1280 | IEEE80211_HW_AP_LINK_PS = 1<<22, |
Arik Nemtsov | edf6b78 | 2011-08-30 09:32:38 +0300 | [diff] [blame] | 1281 | IEEE80211_HW_TX_AMPDU_SETUP_IN_HW = 1<<23, |
Eliad Peller | 885bd8e | 2012-02-02 17:44:55 +0200 | [diff] [blame] | 1282 | IEEE80211_HW_SCAN_WHILE_IDLE = 1<<24, |
Johannes Berg | 6d71117 | 2012-06-19 17:19:44 +0200 | [diff] [blame] | 1283 | IEEE80211_HW_P2P_DEV_ADDR_FOR_INTF = 1<<25, |
Johannes Berg | 1bc0826 | 2007-09-18 17:29:15 -0400 | [diff] [blame] | 1284 | }; |
| 1285 | |
Johannes Berg | 7ac1bd6 | 2007-09-14 11:10:25 -0400 | [diff] [blame] | 1286 | /** |
| 1287 | * struct ieee80211_hw - hardware information and state |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 1288 | * |
| 1289 | * This structure contains the configuration and hardware |
| 1290 | * information for an 802.11 PHY. |
| 1291 | * |
| 1292 | * @wiphy: This points to the &struct wiphy allocated for this |
| 1293 | * 802.11 PHY. You must fill in the @perm_addr and @dev |
| 1294 | * members of this structure using SET_IEEE80211_DEV() |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 1295 | * and SET_IEEE80211_PERM_ADDR(). Additionally, all supported |
| 1296 | * bands (with channels, bitrates) are registered here. |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 1297 | * |
| 1298 | * @conf: &struct ieee80211_conf, device configuration, don't use. |
| 1299 | * |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 1300 | * @priv: pointer to private area that was allocated for driver use |
| 1301 | * along with this structure. |
| 1302 | * |
| 1303 | * @flags: hardware flags, see &enum ieee80211_hw_flags. |
| 1304 | * |
| 1305 | * @extra_tx_headroom: headroom to reserve in each transmit skb |
| 1306 | * for use by the driver (e.g. for transmit headers.) |
| 1307 | * |
| 1308 | * @channel_change_time: time (in microseconds) it takes to change channels. |
| 1309 | * |
Bruno Randolf | 566bfe5 | 2008-05-08 19:15:40 +0200 | [diff] [blame] | 1310 | * @max_signal: Maximum value for signal (rssi) in RX information, used |
| 1311 | * only when @IEEE80211_HW_SIGNAL_UNSPEC or @IEEE80211_HW_SIGNAL_DB |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 1312 | * |
Tomas Winkler | ea95bba | 2008-07-18 13:53:00 +0800 | [diff] [blame] | 1313 | * @max_listen_interval: max listen interval in units of beacon interval |
| 1314 | * that HW supports |
| 1315 | * |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 1316 | * @queues: number of available hardware transmit queues for |
Johannes Berg | e100bb6 | 2008-04-30 18:51:21 +0200 | [diff] [blame] | 1317 | * data packets. WMM/QoS requires at least four, these |
| 1318 | * queues need to have configurable access parameters. |
| 1319 | * |
Johannes Berg | 830f903 | 2007-10-28 14:51:05 +0100 | [diff] [blame] | 1320 | * @rate_control_algorithm: rate control algorithm for this hardware. |
| 1321 | * If unset (NULL), the default algorithm will be used. Must be |
| 1322 | * set before calling ieee80211_register_hw(). |
Johannes Berg | 32bfd35 | 2007-12-19 01:31:26 +0100 | [diff] [blame] | 1323 | * |
| 1324 | * @vif_data_size: size (in bytes) of the drv_priv data area |
| 1325 | * within &struct ieee80211_vif. |
Johannes Berg | 17741cd | 2008-09-11 00:02:02 +0200 | [diff] [blame] | 1326 | * @sta_data_size: size (in bytes) of the drv_priv data area |
| 1327 | * within &struct ieee80211_sta. |
Felix Fietkau | 870abdf | 2008-10-05 18:04:24 +0200 | [diff] [blame] | 1328 | * |
Helmut Schaa | 78be49e | 2010-10-02 11:31:55 +0200 | [diff] [blame] | 1329 | * @max_rates: maximum number of alternate rate retry stages the hw |
| 1330 | * can handle. |
| 1331 | * @max_report_rates: maximum number of alternate rate retry stages |
| 1332 | * the hw can report back. |
Johannes Berg | e6a9854 | 2008-10-21 12:40:02 +0200 | [diff] [blame] | 1333 | * @max_rate_tries: maximum number of tries for each stage |
John W. Linville | 4e6cbfd | 2010-07-29 16:14:13 -0400 | [diff] [blame] | 1334 | * |
| 1335 | * @napi_weight: weight used for NAPI polling. You must specify an |
| 1336 | * appropriate value here if a napi_poll operation is provided |
| 1337 | * by your driver. |
Randy Dunlap | 858022a | 2011-03-18 09:33:02 -0700 | [diff] [blame] | 1338 | * |
Luciano Coelho | df6ba5d | 2011-01-12 15:26:30 +0200 | [diff] [blame] | 1339 | * @max_rx_aggregation_subframes: maximum buffer size (number of |
| 1340 | * sub-frames) to be used for A-MPDU block ack receiver |
| 1341 | * aggregation. |
| 1342 | * This is only relevant if the device has restrictions on the |
| 1343 | * number of subframes, if it relies on mac80211 to do reordering |
| 1344 | * it shouldn't be set. |
Johannes Berg | 5dd36bc | 2011-01-18 13:52:23 +0100 | [diff] [blame] | 1345 | * |
| 1346 | * @max_tx_aggregation_subframes: maximum number of subframes in an |
| 1347 | * aggregate an HT driver will transmit, used by the peer as a |
| 1348 | * hint to size its reorder buffer. |
Johannes Berg | 3a25a8c | 2012-04-03 16:28:50 +0200 | [diff] [blame] | 1349 | * |
| 1350 | * @offchannel_tx_hw_queue: HW queue ID to use for offchannel TX |
| 1351 | * (if %IEEE80211_HW_QUEUE_CONTROL is set) |
Johannes Berg | ac55d2f | 2012-05-10 09:09:10 +0200 | [diff] [blame] | 1352 | * |
| 1353 | * @radiotap_mcs_details: lists which MCS information can the HW |
| 1354 | * reports, by default it is set to _MCS, _GI and _BW but doesn't |
| 1355 | * include _FMT. Use %IEEE80211_RADIOTAP_MCS_HAVE_* values, only |
| 1356 | * adding _BW is supported today. |
Arik Nemtsov | 72d7872 | 2012-05-10 16:18:26 +0300 | [diff] [blame] | 1357 | * |
| 1358 | * @netdev_features: netdev features to be set in each netdev created |
| 1359 | * from this HW. Note only HW checksum features are currently |
| 1360 | * compatible with mac80211. Other feature bits will be rejected. |
Johannes Berg | 7ac1bd6 | 2007-09-14 11:10:25 -0400 | [diff] [blame] | 1361 | */ |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1362 | struct ieee80211_hw { |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1363 | struct ieee80211_conf conf; |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 1364 | struct wiphy *wiphy; |
Johannes Berg | 830f903 | 2007-10-28 14:51:05 +0100 | [diff] [blame] | 1365 | const char *rate_control_algorithm; |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1366 | void *priv; |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 1367 | u32 flags; |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1368 | unsigned int extra_tx_headroom; |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1369 | int channel_change_time; |
Johannes Berg | 32bfd35 | 2007-12-19 01:31:26 +0100 | [diff] [blame] | 1370 | int vif_data_size; |
Johannes Berg | 17741cd | 2008-09-11 00:02:02 +0200 | [diff] [blame] | 1371 | int sta_data_size; |
John W. Linville | 4e6cbfd | 2010-07-29 16:14:13 -0400 | [diff] [blame] | 1372 | int napi_weight; |
Tomas Winkler | ea95bba | 2008-07-18 13:53:00 +0800 | [diff] [blame] | 1373 | u16 queues; |
Tomas Winkler | ea95bba | 2008-07-18 13:53:00 +0800 | [diff] [blame] | 1374 | u16 max_listen_interval; |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1375 | s8 max_signal; |
Johannes Berg | e6a9854 | 2008-10-21 12:40:02 +0200 | [diff] [blame] | 1376 | u8 max_rates; |
Helmut Schaa | 78be49e | 2010-10-02 11:31:55 +0200 | [diff] [blame] | 1377 | u8 max_report_rates; |
Johannes Berg | e6a9854 | 2008-10-21 12:40:02 +0200 | [diff] [blame] | 1378 | u8 max_rate_tries; |
Luciano Coelho | df6ba5d | 2011-01-12 15:26:30 +0200 | [diff] [blame] | 1379 | u8 max_rx_aggregation_subframes; |
Johannes Berg | 5dd36bc | 2011-01-18 13:52:23 +0100 | [diff] [blame] | 1380 | u8 max_tx_aggregation_subframes; |
Johannes Berg | 3a25a8c | 2012-04-03 16:28:50 +0200 | [diff] [blame] | 1381 | u8 offchannel_tx_hw_queue; |
Johannes Berg | ac55d2f | 2012-05-10 09:09:10 +0200 | [diff] [blame] | 1382 | u8 radiotap_mcs_details; |
Arik Nemtsov | 72d7872 | 2012-05-10 16:18:26 +0300 | [diff] [blame] | 1383 | netdev_features_t netdev_features; |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1384 | }; |
| 1385 | |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 1386 | /** |
Luis R. Rodriguez | 9a95371 | 2009-01-22 15:05:53 -0800 | [diff] [blame] | 1387 | * wiphy_to_ieee80211_hw - return a mac80211 driver hw struct from a wiphy |
| 1388 | * |
| 1389 | * @wiphy: the &struct wiphy which we want to query |
| 1390 | * |
| 1391 | * mac80211 drivers can use this to get to their respective |
| 1392 | * &struct ieee80211_hw. Drivers wishing to get to their own private |
| 1393 | * structure can then access it via hw->priv. Note that mac802111 drivers should |
| 1394 | * not use wiphy_priv() to try to get their private driver structure as this |
| 1395 | * is already used internally by mac80211. |
| 1396 | */ |
| 1397 | struct ieee80211_hw *wiphy_to_ieee80211_hw(struct wiphy *wiphy); |
| 1398 | |
| 1399 | /** |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 1400 | * SET_IEEE80211_DEV - set device for 802.11 hardware |
| 1401 | * |
| 1402 | * @hw: the &struct ieee80211_hw to set the device for |
| 1403 | * @dev: the &struct device of this 802.11 device |
| 1404 | */ |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1405 | static inline void SET_IEEE80211_DEV(struct ieee80211_hw *hw, struct device *dev) |
| 1406 | { |
| 1407 | set_wiphy_dev(hw->wiphy, dev); |
| 1408 | } |
| 1409 | |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 1410 | /** |
Bob Copeland | e37d4df | 2008-10-20 21:20:27 -0400 | [diff] [blame] | 1411 | * SET_IEEE80211_PERM_ADDR - set the permanent MAC address for 802.11 hardware |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 1412 | * |
| 1413 | * @hw: the &struct ieee80211_hw to set the MAC address for |
| 1414 | * @addr: the address to set |
| 1415 | */ |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 1416 | static inline void SET_IEEE80211_PERM_ADDR(struct ieee80211_hw *hw, u8 *addr) |
| 1417 | { |
| 1418 | memcpy(hw->wiphy->perm_addr, addr, ETH_ALEN); |
| 1419 | } |
| 1420 | |
Johannes Berg | 2e92e6f | 2008-05-15 12:55:27 +0200 | [diff] [blame] | 1421 | static inline struct ieee80211_rate * |
| 1422 | ieee80211_get_tx_rate(const struct ieee80211_hw *hw, |
Johannes Berg | e039fa4 | 2008-05-15 12:55:29 +0200 | [diff] [blame] | 1423 | const struct ieee80211_tx_info *c) |
Johannes Berg | 2e92e6f | 2008-05-15 12:55:27 +0200 | [diff] [blame] | 1424 | { |
Larry Finger | aa331df | 2012-04-06 16:35:53 -0500 | [diff] [blame] | 1425 | if (WARN_ON_ONCE(c->control.rates[0].idx < 0)) |
Johannes Berg | 2e92e6f | 2008-05-15 12:55:27 +0200 | [diff] [blame] | 1426 | return NULL; |
Johannes Berg | e6a9854 | 2008-10-21 12:40:02 +0200 | [diff] [blame] | 1427 | return &hw->wiphy->bands[c->band]->bitrates[c->control.rates[0].idx]; |
Johannes Berg | 2e92e6f | 2008-05-15 12:55:27 +0200 | [diff] [blame] | 1428 | } |
| 1429 | |
| 1430 | static inline struct ieee80211_rate * |
| 1431 | ieee80211_get_rts_cts_rate(const struct ieee80211_hw *hw, |
Johannes Berg | e039fa4 | 2008-05-15 12:55:29 +0200 | [diff] [blame] | 1432 | const struct ieee80211_tx_info *c) |
Johannes Berg | 2e92e6f | 2008-05-15 12:55:27 +0200 | [diff] [blame] | 1433 | { |
Johannes Berg | e039fa4 | 2008-05-15 12:55:29 +0200 | [diff] [blame] | 1434 | if (c->control.rts_cts_rate_idx < 0) |
Johannes Berg | 2e92e6f | 2008-05-15 12:55:27 +0200 | [diff] [blame] | 1435 | return NULL; |
Johannes Berg | e039fa4 | 2008-05-15 12:55:29 +0200 | [diff] [blame] | 1436 | return &hw->wiphy->bands[c->band]->bitrates[c->control.rts_cts_rate_idx]; |
Johannes Berg | 2e92e6f | 2008-05-15 12:55:27 +0200 | [diff] [blame] | 1437 | } |
| 1438 | |
| 1439 | static inline struct ieee80211_rate * |
| 1440 | ieee80211_get_alt_retry_rate(const struct ieee80211_hw *hw, |
Felix Fietkau | 870abdf | 2008-10-05 18:04:24 +0200 | [diff] [blame] | 1441 | const struct ieee80211_tx_info *c, int idx) |
Johannes Berg | 2e92e6f | 2008-05-15 12:55:27 +0200 | [diff] [blame] | 1442 | { |
Johannes Berg | e6a9854 | 2008-10-21 12:40:02 +0200 | [diff] [blame] | 1443 | if (c->control.rates[idx + 1].idx < 0) |
Johannes Berg | 2e92e6f | 2008-05-15 12:55:27 +0200 | [diff] [blame] | 1444 | return NULL; |
Johannes Berg | e6a9854 | 2008-10-21 12:40:02 +0200 | [diff] [blame] | 1445 | return &hw->wiphy->bands[c->band]->bitrates[c->control.rates[idx + 1].idx]; |
Johannes Berg | 2e92e6f | 2008-05-15 12:55:27 +0200 | [diff] [blame] | 1446 | } |
| 1447 | |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 1448 | /** |
Johannes Berg | 6096de7 | 2011-11-04 11:18:10 +0100 | [diff] [blame] | 1449 | * ieee80211_free_txskb - free TX skb |
| 1450 | * @hw: the hardware |
| 1451 | * @skb: the skb |
| 1452 | * |
| 1453 | * Free a transmit skb. Use this funtion when some failure |
| 1454 | * to transmit happened and thus status cannot be reported. |
| 1455 | */ |
| 1456 | void ieee80211_free_txskb(struct ieee80211_hw *hw, struct sk_buff *skb); |
| 1457 | |
| 1458 | /** |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 1459 | * DOC: Hardware crypto acceleration |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 1460 | * |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 1461 | * mac80211 is capable of taking advantage of many hardware |
| 1462 | * acceleration designs for encryption and decryption operations. |
| 1463 | * |
| 1464 | * The set_key() callback in the &struct ieee80211_ops for a given |
| 1465 | * device is called to enable hardware acceleration of encryption and |
Johannes Berg | dc822b5 | 2008-12-29 12:55:09 +0100 | [diff] [blame] | 1466 | * decryption. The callback takes a @sta parameter that will be NULL |
| 1467 | * for default keys or keys used for transmission only, or point to |
| 1468 | * the station information for the peer for individual keys. |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 1469 | * Multiple transmission keys with the same key index may be used when |
| 1470 | * VLANs are configured for an access point. |
| 1471 | * |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 1472 | * When transmitting, the TX control data will use the @hw_key_idx |
| 1473 | * selected by the driver by modifying the &struct ieee80211_key_conf |
| 1474 | * pointed to by the @key parameter to the set_key() function. |
| 1475 | * |
| 1476 | * The set_key() call for the %SET_KEY command should return 0 if |
| 1477 | * the key is now in use, -%EOPNOTSUPP or -%ENOSPC if it couldn't be |
| 1478 | * added; if you return 0 then hw_key_idx must be assigned to the |
| 1479 | * hardware key index, you are free to use the full u8 range. |
| 1480 | * |
| 1481 | * When the cmd is %DISABLE_KEY then it must succeed. |
| 1482 | * |
| 1483 | * Note that it is permissible to not decrypt a frame even if a key |
| 1484 | * for it has been uploaded to hardware, the stack will not make any |
| 1485 | * decision based on whether a key has been uploaded or not but rather |
| 1486 | * based on the receive flags. |
| 1487 | * |
| 1488 | * The &struct ieee80211_key_conf structure pointed to by the @key |
| 1489 | * parameter is guaranteed to be valid until another call to set_key() |
| 1490 | * removes it, but it can only be used as a cookie to differentiate |
| 1491 | * keys. |
Emmanuel Grumbach | 9ae4fda | 2008-03-20 15:06:42 +0200 | [diff] [blame] | 1492 | * |
| 1493 | * In TKIP some HW need to be provided a phase 1 key, for RX decryption |
| 1494 | * acceleration (i.e. iwlwifi). Those drivers should provide update_tkip_key |
| 1495 | * handler. |
| 1496 | * The update_tkip_key() call updates the driver with the new phase 1 key. |
Lucas De Marchi | 25985ed | 2011-03-30 22:57:33 -0300 | [diff] [blame] | 1497 | * This happens every time the iv16 wraps around (every 65536 packets). The |
Emmanuel Grumbach | 9ae4fda | 2008-03-20 15:06:42 +0200 | [diff] [blame] | 1498 | * set_key() call will happen only once for each key (unless the AP did |
| 1499 | * rekeying), it will not include a valid phase 1 key. The valid phase 1 key is |
Bob Copeland | e37d4df | 2008-10-20 21:20:27 -0400 | [diff] [blame] | 1500 | * provided by update_tkip_key only. The trigger that makes mac80211 call this |
Emmanuel Grumbach | 9ae4fda | 2008-03-20 15:06:42 +0200 | [diff] [blame] | 1501 | * handler is software decryption with wrap around of iv16. |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 1502 | */ |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 1503 | |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 1504 | /** |
Johannes Berg | 4be8c38 | 2009-01-07 18:28:20 +0100 | [diff] [blame] | 1505 | * DOC: Powersave support |
| 1506 | * |
| 1507 | * mac80211 has support for various powersave implementations. |
| 1508 | * |
Kalle Valo | c99445b | 2010-01-14 13:09:21 +0200 | [diff] [blame] | 1509 | * First, it can support hardware that handles all powersaving by itself, |
| 1510 | * such hardware should simply set the %IEEE80211_HW_SUPPORTS_PS hardware |
| 1511 | * flag. In that case, it will be told about the desired powersave mode |
| 1512 | * with the %IEEE80211_CONF_PS flag depending on the association status. |
| 1513 | * The hardware must take care of sending nullfunc frames when necessary, |
| 1514 | * i.e. when entering and leaving powersave mode. The hardware is required |
| 1515 | * to look at the AID in beacons and signal to the AP that it woke up when |
| 1516 | * it finds traffic directed to it. |
Johannes Berg | 4be8c38 | 2009-01-07 18:28:20 +0100 | [diff] [blame] | 1517 | * |
Kalle Valo | c99445b | 2010-01-14 13:09:21 +0200 | [diff] [blame] | 1518 | * %IEEE80211_CONF_PS flag enabled means that the powersave mode defined in |
| 1519 | * IEEE 802.11-2007 section 11.2 is enabled. This is not to be confused |
| 1520 | * with hardware wakeup and sleep states. Driver is responsible for waking |
Bob Copeland | 2738bd6 | 2010-08-21 16:39:01 -0400 | [diff] [blame] | 1521 | * up the hardware before issuing commands to the hardware and putting it |
| 1522 | * back to sleep at appropriate times. |
Kalle Valo | c99445b | 2010-01-14 13:09:21 +0200 | [diff] [blame] | 1523 | * |
| 1524 | * When PS is enabled, hardware needs to wakeup for beacons and receive the |
| 1525 | * buffered multicast/broadcast frames after the beacon. Also it must be |
| 1526 | * possible to send frames and receive the acknowledment frame. |
Johannes Berg | 4be8c38 | 2009-01-07 18:28:20 +0100 | [diff] [blame] | 1527 | * |
| 1528 | * Other hardware designs cannot send nullfunc frames by themselves and also |
| 1529 | * need software support for parsing the TIM bitmap. This is also supported |
| 1530 | * by mac80211 by combining the %IEEE80211_HW_SUPPORTS_PS and |
| 1531 | * %IEEE80211_HW_PS_NULLFUNC_STACK flags. The hardware is of course still |
Johannes Berg | 955394c | 2009-04-16 17:04:25 +0200 | [diff] [blame] | 1532 | * required to pass up beacons. The hardware is still required to handle |
| 1533 | * waking up for multicast traffic; if it cannot the driver must handle that |
Kalle Valo | c99445b | 2010-01-14 13:09:21 +0200 | [diff] [blame] | 1534 | * as best as it can, mac80211 is too slow to do that. |
Johannes Berg | 4be8c38 | 2009-01-07 18:28:20 +0100 | [diff] [blame] | 1535 | * |
Kalle Valo | c99445b | 2010-01-14 13:09:21 +0200 | [diff] [blame] | 1536 | * Dynamic powersave is an extension to normal powersave in which the |
| 1537 | * hardware stays awake for a user-specified period of time after sending a |
| 1538 | * frame so that reply frames need not be buffered and therefore delayed to |
| 1539 | * the next wakeup. It's compromise of getting good enough latency when |
| 1540 | * there's data traffic and still saving significantly power in idle |
| 1541 | * periods. |
| 1542 | * |
Bob Copeland | 2738bd6 | 2010-08-21 16:39:01 -0400 | [diff] [blame] | 1543 | * Dynamic powersave is simply supported by mac80211 enabling and disabling |
Kalle Valo | c99445b | 2010-01-14 13:09:21 +0200 | [diff] [blame] | 1544 | * PS based on traffic. Driver needs to only set %IEEE80211_HW_SUPPORTS_PS |
| 1545 | * flag and mac80211 will handle everything automatically. Additionally, |
| 1546 | * hardware having support for the dynamic PS feature may set the |
| 1547 | * %IEEE80211_HW_SUPPORTS_DYNAMIC_PS flag to indicate that it can support |
| 1548 | * dynamic PS mode itself. The driver needs to look at the |
| 1549 | * @dynamic_ps_timeout hardware configuration value and use it that value |
| 1550 | * whenever %IEEE80211_CONF_PS is set. In this case mac80211 will disable |
| 1551 | * dynamic PS feature in stack and will just keep %IEEE80211_CONF_PS |
| 1552 | * enabled whenever user has enabled powersave. |
| 1553 | * |
Juuso Oikarinen | f90754c | 2010-06-21 08:59:39 +0300 | [diff] [blame] | 1554 | * Some hardware need to toggle a single shared antenna between WLAN and |
| 1555 | * Bluetooth to facilitate co-existence. These types of hardware set |
| 1556 | * limitations on the use of host controlled dynamic powersave whenever there |
| 1557 | * is simultaneous WLAN and Bluetooth traffic. For these types of hardware, the |
| 1558 | * driver may request temporarily going into full power save, in order to |
| 1559 | * enable toggling the antenna between BT and WLAN. If the driver requests |
| 1560 | * disabling dynamic powersave, the @dynamic_ps_timeout value will be |
| 1561 | * temporarily set to zero until the driver re-enables dynamic powersave. |
| 1562 | * |
Kalle Valo | c99445b | 2010-01-14 13:09:21 +0200 | [diff] [blame] | 1563 | * Driver informs U-APSD client support by enabling |
| 1564 | * %IEEE80211_HW_SUPPORTS_UAPSD flag. The mode is configured through the |
| 1565 | * uapsd paramater in conf_tx() operation. Hardware needs to send the QoS |
| 1566 | * Nullfunc frames and stay awake until the service period has ended. To |
| 1567 | * utilize U-APSD, dynamic powersave is disabled for voip AC and all frames |
| 1568 | * from that AC are transmitted with powersave enabled. |
| 1569 | * |
| 1570 | * Note: U-APSD client mode is not yet supported with |
| 1571 | * %IEEE80211_HW_PS_NULLFUNC_STACK. |
Johannes Berg | 4be8c38 | 2009-01-07 18:28:20 +0100 | [diff] [blame] | 1572 | */ |
| 1573 | |
| 1574 | /** |
Kalle Valo | 04de838 | 2009-03-22 21:57:35 +0200 | [diff] [blame] | 1575 | * DOC: Beacon filter support |
| 1576 | * |
| 1577 | * Some hardware have beacon filter support to reduce host cpu wakeups |
Justin P. Mattock | 42b2aa8 | 2011-11-28 20:31:00 -0800 | [diff] [blame] | 1578 | * which will reduce system power consumption. It usually works so that |
Kalle Valo | 04de838 | 2009-03-22 21:57:35 +0200 | [diff] [blame] | 1579 | * the firmware creates a checksum of the beacon but omits all constantly |
| 1580 | * changing elements (TSF, TIM etc). Whenever the checksum changes the |
| 1581 | * beacon is forwarded to the host, otherwise it will be just dropped. That |
| 1582 | * way the host will only receive beacons where some relevant information |
| 1583 | * (for example ERP protection or WMM settings) have changed. |
| 1584 | * |
Johannes Berg | c1288b1 | 2012-01-19 09:29:57 +0100 | [diff] [blame] | 1585 | * Beacon filter support is advertised with the %IEEE80211_VIF_BEACON_FILTER |
| 1586 | * interface capability. The driver needs to enable beacon filter support |
Johannes Berg | 955394c | 2009-04-16 17:04:25 +0200 | [diff] [blame] | 1587 | * whenever power save is enabled, that is %IEEE80211_CONF_PS is set. When |
| 1588 | * power save is enabled, the stack will not check for beacon loss and the |
| 1589 | * driver needs to notify about loss of beacons with ieee80211_beacon_loss(). |
| 1590 | * |
| 1591 | * The time (or number of beacons missed) until the firmware notifies the |
| 1592 | * driver of a beacon loss event (which in turn causes the driver to call |
| 1593 | * ieee80211_beacon_loss()) should be configurable and will be controlled |
| 1594 | * by mac80211 and the roaming algorithm in the future. |
| 1595 | * |
| 1596 | * Since there may be constantly changing information elements that nothing |
| 1597 | * in the software stack cares about, we will, in the future, have mac80211 |
| 1598 | * tell the driver which information elements are interesting in the sense |
| 1599 | * that we want to see changes in them. This will include |
| 1600 | * - a list of information element IDs |
| 1601 | * - a list of OUIs for the vendor information element |
| 1602 | * |
| 1603 | * Ideally, the hardware would filter out any beacons without changes in the |
| 1604 | * requested elements, but if it cannot support that it may, at the expense |
| 1605 | * of some efficiency, filter out only a subset. For example, if the device |
| 1606 | * doesn't support checking for OUIs it should pass up all changes in all |
| 1607 | * vendor information elements. |
| 1608 | * |
| 1609 | * Note that change, for the sake of simplification, also includes information |
| 1610 | * elements appearing or disappearing from the beacon. |
| 1611 | * |
| 1612 | * Some hardware supports an "ignore list" instead, just make sure nothing |
| 1613 | * that was requested is on the ignore list, and include commonly changing |
| 1614 | * information element IDs in the ignore list, for example 11 (BSS load) and |
| 1615 | * the various vendor-assigned IEs with unknown contents (128, 129, 133-136, |
| 1616 | * 149, 150, 155, 156, 173, 176, 178, 179, 219); for forward compatibility |
| 1617 | * it could also include some currently unused IDs. |
| 1618 | * |
| 1619 | * |
| 1620 | * In addition to these capabilities, hardware should support notifying the |
| 1621 | * host of changes in the beacon RSSI. This is relevant to implement roaming |
| 1622 | * when no traffic is flowing (when traffic is flowing we see the RSSI of |
| 1623 | * the received data packets). This can consist in notifying the host when |
| 1624 | * the RSSI changes significantly or when it drops below or rises above |
| 1625 | * configurable thresholds. In the future these thresholds will also be |
| 1626 | * configured by mac80211 (which gets them from userspace) to implement |
| 1627 | * them as the roaming algorithm requires. |
| 1628 | * |
| 1629 | * If the hardware cannot implement this, the driver should ask it to |
| 1630 | * periodically pass beacon frames to the host so that software can do the |
| 1631 | * signal strength threshold checking. |
Kalle Valo | 04de838 | 2009-03-22 21:57:35 +0200 | [diff] [blame] | 1632 | */ |
| 1633 | |
| 1634 | /** |
Johannes Berg | 0f78231 | 2009-12-01 13:37:02 +0100 | [diff] [blame] | 1635 | * DOC: Spatial multiplexing power save |
| 1636 | * |
| 1637 | * SMPS (Spatial multiplexing power save) is a mechanism to conserve |
| 1638 | * power in an 802.11n implementation. For details on the mechanism |
| 1639 | * and rationale, please refer to 802.11 (as amended by 802.11n-2009) |
| 1640 | * "11.2.3 SM power save". |
| 1641 | * |
| 1642 | * The mac80211 implementation is capable of sending action frames |
| 1643 | * to update the AP about the station's SMPS mode, and will instruct |
| 1644 | * the driver to enter the specific mode. It will also announce the |
| 1645 | * requested SMPS mode during the association handshake. Hardware |
| 1646 | * support for this feature is required, and can be indicated by |
| 1647 | * hardware flags. |
| 1648 | * |
| 1649 | * The default mode will be "automatic", which nl80211/cfg80211 |
| 1650 | * defines to be dynamic SMPS in (regular) powersave, and SMPS |
| 1651 | * turned off otherwise. |
| 1652 | * |
| 1653 | * To support this feature, the driver must set the appropriate |
| 1654 | * hardware support flags, and handle the SMPS flag to the config() |
| 1655 | * operation. It will then with this mechanism be instructed to |
| 1656 | * enter the requested SMPS mode while associated to an HT AP. |
| 1657 | */ |
| 1658 | |
| 1659 | /** |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 1660 | * DOC: Frame filtering |
| 1661 | * |
| 1662 | * mac80211 requires to see many management frames for proper |
| 1663 | * operation, and users may want to see many more frames when |
| 1664 | * in monitor mode. However, for best CPU usage and power consumption, |
| 1665 | * having as few frames as possible percolate through the stack is |
| 1666 | * desirable. Hence, the hardware should filter as much as possible. |
| 1667 | * |
| 1668 | * To achieve this, mac80211 uses filter flags (see below) to tell |
| 1669 | * the driver's configure_filter() function which frames should be |
| 1670 | * passed to mac80211 and which should be filtered out. |
| 1671 | * |
Johannes Berg | 3ac64be | 2009-08-17 16:16:53 +0200 | [diff] [blame] | 1672 | * Before configure_filter() is invoked, the prepare_multicast() |
| 1673 | * callback is invoked with the parameters @mc_count and @mc_list |
| 1674 | * for the combined multicast address list of all virtual interfaces. |
| 1675 | * It's use is optional, and it returns a u64 that is passed to |
| 1676 | * configure_filter(). Additionally, configure_filter() has the |
| 1677 | * arguments @changed_flags telling which flags were changed and |
| 1678 | * @total_flags with the new flag states. |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 1679 | * |
| 1680 | * If your device has no multicast address filters your driver will |
| 1681 | * need to check both the %FIF_ALLMULTI flag and the @mc_count |
| 1682 | * parameter to see whether multicast frames should be accepted |
| 1683 | * or dropped. |
| 1684 | * |
Michael Buesch | d0f5afb | 2008-02-12 20:12:45 +0100 | [diff] [blame] | 1685 | * All unsupported flags in @total_flags must be cleared. |
| 1686 | * Hardware does not support a flag if it is incapable of _passing_ |
| 1687 | * the frame to the stack. Otherwise the driver must ignore |
| 1688 | * the flag, but not clear it. |
| 1689 | * You must _only_ clear the flag (announce no support for the |
| 1690 | * flag to mac80211) if you are not able to pass the packet type |
| 1691 | * to the stack (so the hardware always filters it). |
| 1692 | * So for example, you should clear @FIF_CONTROL, if your hardware |
| 1693 | * always filters control frames. If your hardware always passes |
| 1694 | * control frames to the kernel and is incapable of filtering them, |
| 1695 | * you do _not_ clear the @FIF_CONTROL flag. |
| 1696 | * This rule applies to all other FIF flags as well. |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 1697 | */ |
| 1698 | |
| 1699 | /** |
Johannes Berg | 4b801bc | 2011-09-29 16:04:40 +0200 | [diff] [blame] | 1700 | * DOC: AP support for powersaving clients |
| 1701 | * |
| 1702 | * In order to implement AP and P2P GO modes, mac80211 has support for |
| 1703 | * client powersaving, both "legacy" PS (PS-Poll/null data) and uAPSD. |
| 1704 | * There currently is no support for sAPSD. |
| 1705 | * |
| 1706 | * There is one assumption that mac80211 makes, namely that a client |
| 1707 | * will not poll with PS-Poll and trigger with uAPSD at the same time. |
| 1708 | * Both are supported, and both can be used by the same client, but |
| 1709 | * they can't be used concurrently by the same client. This simplifies |
| 1710 | * the driver code. |
| 1711 | * |
| 1712 | * The first thing to keep in mind is that there is a flag for complete |
| 1713 | * driver implementation: %IEEE80211_HW_AP_LINK_PS. If this flag is set, |
| 1714 | * mac80211 expects the driver to handle most of the state machine for |
| 1715 | * powersaving clients and will ignore the PM bit in incoming frames. |
| 1716 | * Drivers then use ieee80211_sta_ps_transition() to inform mac80211 of |
| 1717 | * stations' powersave transitions. In this mode, mac80211 also doesn't |
| 1718 | * handle PS-Poll/uAPSD. |
| 1719 | * |
| 1720 | * In the mode without %IEEE80211_HW_AP_LINK_PS, mac80211 will check the |
| 1721 | * PM bit in incoming frames for client powersave transitions. When a |
| 1722 | * station goes to sleep, we will stop transmitting to it. There is, |
| 1723 | * however, a race condition: a station might go to sleep while there is |
| 1724 | * data buffered on hardware queues. If the device has support for this |
| 1725 | * it will reject frames, and the driver should give the frames back to |
| 1726 | * mac80211 with the %IEEE80211_TX_STAT_TX_FILTERED flag set which will |
| 1727 | * cause mac80211 to retry the frame when the station wakes up. The |
| 1728 | * driver is also notified of powersave transitions by calling its |
| 1729 | * @sta_notify callback. |
| 1730 | * |
| 1731 | * When the station is asleep, it has three choices: it can wake up, |
| 1732 | * it can PS-Poll, or it can possibly start a uAPSD service period. |
| 1733 | * Waking up is implemented by simply transmitting all buffered (and |
| 1734 | * filtered) frames to the station. This is the easiest case. When |
| 1735 | * the station sends a PS-Poll or a uAPSD trigger frame, mac80211 |
| 1736 | * will inform the driver of this with the @allow_buffered_frames |
| 1737 | * callback; this callback is optional. mac80211 will then transmit |
Johannes Berg | 02f2f1a | 2012-02-27 12:18:30 +0100 | [diff] [blame] | 1738 | * the frames as usual and set the %IEEE80211_TX_CTL_NO_PS_BUFFER |
Johannes Berg | 4b801bc | 2011-09-29 16:04:40 +0200 | [diff] [blame] | 1739 | * on each frame. The last frame in the service period (or the only |
| 1740 | * response to a PS-Poll) also has %IEEE80211_TX_STATUS_EOSP set to |
| 1741 | * indicate that it ends the service period; as this frame must have |
| 1742 | * TX status report it also sets %IEEE80211_TX_CTL_REQ_TX_STATUS. |
| 1743 | * When TX status is reported for this frame, the service period is |
| 1744 | * marked has having ended and a new one can be started by the peer. |
| 1745 | * |
Johannes Berg | 02f2f1a | 2012-02-27 12:18:30 +0100 | [diff] [blame] | 1746 | * Additionally, non-bufferable MMPDUs can also be transmitted by |
| 1747 | * mac80211 with the %IEEE80211_TX_CTL_NO_PS_BUFFER set in them. |
| 1748 | * |
Johannes Berg | 4b801bc | 2011-09-29 16:04:40 +0200 | [diff] [blame] | 1749 | * Another race condition can happen on some devices like iwlwifi |
| 1750 | * when there are frames queued for the station and it wakes up |
| 1751 | * or polls; the frames that are already queued could end up being |
| 1752 | * transmitted first instead, causing reordering and/or wrong |
| 1753 | * processing of the EOSP. The cause is that allowing frames to be |
| 1754 | * transmitted to a certain station is out-of-band communication to |
| 1755 | * the device. To allow this problem to be solved, the driver can |
| 1756 | * call ieee80211_sta_block_awake() if frames are buffered when it |
| 1757 | * is notified that the station went to sleep. When all these frames |
| 1758 | * have been filtered (see above), it must call the function again |
| 1759 | * to indicate that the station is no longer blocked. |
| 1760 | * |
| 1761 | * If the driver buffers frames in the driver for aggregation in any |
| 1762 | * way, it must use the ieee80211_sta_set_buffered() call when it is |
| 1763 | * notified of the station going to sleep to inform mac80211 of any |
| 1764 | * TIDs that have frames buffered. Note that when a station wakes up |
| 1765 | * this information is reset (hence the requirement to call it when |
| 1766 | * informed of the station going to sleep). Then, when a service |
| 1767 | * period starts for any reason, @release_buffered_frames is called |
| 1768 | * with the number of frames to be released and which TIDs they are |
| 1769 | * to come from. In this case, the driver is responsible for setting |
| 1770 | * the EOSP (for uAPSD) and MORE_DATA bits in the released frames, |
| 1771 | * to help the @more_data paramter is passed to tell the driver if |
| 1772 | * there is more data on other TIDs -- the TIDs to release frames |
| 1773 | * from are ignored since mac80211 doesn't know how many frames the |
| 1774 | * buffers for those TIDs contain. |
| 1775 | * |
| 1776 | * If the driver also implement GO mode, where absence periods may |
| 1777 | * shorten service periods (or abort PS-Poll responses), it must |
| 1778 | * filter those response frames except in the case of frames that |
| 1779 | * are buffered in the driver -- those must remain buffered to avoid |
| 1780 | * reordering. Because it is possible that no frames are released |
| 1781 | * in this case, the driver must call ieee80211_sta_eosp_irqsafe() |
| 1782 | * to indicate to mac80211 that the service period ended anyway. |
| 1783 | * |
| 1784 | * Finally, if frames from multiple TIDs are released from mac80211 |
| 1785 | * but the driver might reorder them, it must clear & set the flags |
| 1786 | * appropriately (only the last frame may have %IEEE80211_TX_STATUS_EOSP) |
| 1787 | * and also take care of the EOSP and MORE_DATA bits in the frame. |
| 1788 | * The driver may also use ieee80211_sta_eosp_irqsafe() in this case. |
| 1789 | */ |
| 1790 | |
| 1791 | /** |
Johannes Berg | 3a25a8c | 2012-04-03 16:28:50 +0200 | [diff] [blame] | 1792 | * DOC: HW queue control |
| 1793 | * |
| 1794 | * Before HW queue control was introduced, mac80211 only had a single static |
| 1795 | * assignment of per-interface AC software queues to hardware queues. This |
| 1796 | * was problematic for a few reasons: |
| 1797 | * 1) off-channel transmissions might get stuck behind other frames |
| 1798 | * 2) multiple virtual interfaces couldn't be handled correctly |
| 1799 | * 3) after-DTIM frames could get stuck behind other frames |
| 1800 | * |
| 1801 | * To solve this, hardware typically uses multiple different queues for all |
| 1802 | * the different usages, and this needs to be propagated into mac80211 so it |
| 1803 | * won't have the same problem with the software queues. |
| 1804 | * |
| 1805 | * Therefore, mac80211 now offers the %IEEE80211_HW_QUEUE_CONTROL capability |
| 1806 | * flag that tells it that the driver implements its own queue control. To do |
| 1807 | * so, the driver will set up the various queues in each &struct ieee80211_vif |
| 1808 | * and the offchannel queue in &struct ieee80211_hw. In response, mac80211 will |
| 1809 | * use those queue IDs in the hw_queue field of &struct ieee80211_tx_info and |
| 1810 | * if necessary will queue the frame on the right software queue that mirrors |
| 1811 | * the hardware queue. |
| 1812 | * Additionally, the driver has to then use these HW queue IDs for the queue |
| 1813 | * management functions (ieee80211_stop_queue() et al.) |
| 1814 | * |
| 1815 | * The driver is free to set up the queue mappings as needed, multiple virtual |
| 1816 | * interfaces may map to the same hardware queues if needed. The setup has to |
| 1817 | * happen during add_interface or change_interface callbacks. For example, a |
| 1818 | * driver supporting station+station and station+AP modes might decide to have |
| 1819 | * 10 hardware queues to handle different scenarios: |
| 1820 | * |
| 1821 | * 4 AC HW queues for 1st vif: 0, 1, 2, 3 |
| 1822 | * 4 AC HW queues for 2nd vif: 4, 5, 6, 7 |
| 1823 | * after-DTIM queue for AP: 8 |
| 1824 | * off-channel queue: 9 |
| 1825 | * |
| 1826 | * It would then set up the hardware like this: |
| 1827 | * hw.offchannel_tx_hw_queue = 9 |
| 1828 | * |
| 1829 | * and the first virtual interface that is added as follows: |
| 1830 | * vif.hw_queue[IEEE80211_AC_VO] = 0 |
| 1831 | * vif.hw_queue[IEEE80211_AC_VI] = 1 |
| 1832 | * vif.hw_queue[IEEE80211_AC_BE] = 2 |
| 1833 | * vif.hw_queue[IEEE80211_AC_BK] = 3 |
| 1834 | * vif.cab_queue = 8 // if AP mode, otherwise %IEEE80211_INVAL_HW_QUEUE |
| 1835 | * and the second virtual interface with 4-7. |
| 1836 | * |
| 1837 | * If queue 6 gets full, for example, mac80211 would only stop the second |
| 1838 | * virtual interface's BE queue since virtual interface queues are per AC. |
| 1839 | * |
| 1840 | * Note that the vif.cab_queue value should be set to %IEEE80211_INVAL_HW_QUEUE |
| 1841 | * whenever the queue is not used (i.e. the interface is not in AP mode) if the |
| 1842 | * queue could potentially be shared since mac80211 will look at cab_queue when |
| 1843 | * a queue is stopped/woken even if the interface is not in AP mode. |
| 1844 | */ |
| 1845 | |
| 1846 | /** |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 1847 | * enum ieee80211_filter_flags - hardware filter flags |
| 1848 | * |
| 1849 | * These flags determine what the filter in hardware should be |
| 1850 | * programmed to let through and what should not be passed to the |
| 1851 | * stack. It is always safe to pass more frames than requested, |
| 1852 | * but this has negative impact on power consumption. |
| 1853 | * |
| 1854 | * @FIF_PROMISC_IN_BSS: promiscuous mode within your BSS, |
| 1855 | * think of the BSS as your network segment and then this corresponds |
| 1856 | * to the regular ethernet device promiscuous mode. |
| 1857 | * |
| 1858 | * @FIF_ALLMULTI: pass all multicast frames, this is used if requested |
| 1859 | * by the user or if the hardware is not capable of filtering by |
| 1860 | * multicast address. |
| 1861 | * |
| 1862 | * @FIF_FCSFAIL: pass frames with failed FCS (but you need to set the |
| 1863 | * %RX_FLAG_FAILED_FCS_CRC for them) |
| 1864 | * |
| 1865 | * @FIF_PLCPFAIL: pass frames with failed PLCP CRC (but you need to set |
| 1866 | * the %RX_FLAG_FAILED_PLCP_CRC for them |
| 1867 | * |
| 1868 | * @FIF_BCN_PRBRESP_PROMISC: This flag is set during scanning to indicate |
| 1869 | * to the hardware that it should not filter beacons or probe responses |
| 1870 | * by BSSID. Filtering them can greatly reduce the amount of processing |
| 1871 | * mac80211 needs to do and the amount of CPU wakeups, so you should |
| 1872 | * honour this flag if possible. |
| 1873 | * |
Igor Perminov | e3b90ca | 2009-08-04 16:48:51 +0400 | [diff] [blame] | 1874 | * @FIF_CONTROL: pass control frames (except for PS Poll), if PROMISC_IN_BSS |
Johannes Berg | 7be5086 | 2010-10-13 12:06:24 +0200 | [diff] [blame] | 1875 | * is not set then only those addressed to this station. |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 1876 | * |
| 1877 | * @FIF_OTHER_BSS: pass frames destined to other BSSes |
Igor Perminov | e3b90ca | 2009-08-04 16:48:51 +0400 | [diff] [blame] | 1878 | * |
Johannes Berg | 7be5086 | 2010-10-13 12:06:24 +0200 | [diff] [blame] | 1879 | * @FIF_PSPOLL: pass PS Poll frames, if PROMISC_IN_BSS is not set then only |
| 1880 | * those addressed to this station. |
| 1881 | * |
| 1882 | * @FIF_PROBE_REQ: pass probe request frames |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 1883 | */ |
| 1884 | enum ieee80211_filter_flags { |
| 1885 | FIF_PROMISC_IN_BSS = 1<<0, |
| 1886 | FIF_ALLMULTI = 1<<1, |
| 1887 | FIF_FCSFAIL = 1<<2, |
| 1888 | FIF_PLCPFAIL = 1<<3, |
| 1889 | FIF_BCN_PRBRESP_PROMISC = 1<<4, |
| 1890 | FIF_CONTROL = 1<<5, |
| 1891 | FIF_OTHER_BSS = 1<<6, |
Igor Perminov | e3b90ca | 2009-08-04 16:48:51 +0400 | [diff] [blame] | 1892 | FIF_PSPOLL = 1<<7, |
Johannes Berg | 7be5086 | 2010-10-13 12:06:24 +0200 | [diff] [blame] | 1893 | FIF_PROBE_REQ = 1<<8, |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 1894 | }; |
| 1895 | |
| 1896 | /** |
Ron Rindjunsky | 1b7d03a | 2007-12-25 17:00:31 +0200 | [diff] [blame] | 1897 | * enum ieee80211_ampdu_mlme_action - A-MPDU actions |
| 1898 | * |
| 1899 | * These flags are used with the ampdu_action() callback in |
| 1900 | * &struct ieee80211_ops to indicate which action is needed. |
Johannes Berg | 827d42c | 2009-11-22 12:28:41 +0100 | [diff] [blame] | 1901 | * |
| 1902 | * Note that drivers MUST be able to deal with a TX aggregation |
| 1903 | * session being stopped even before they OK'ed starting it by |
Johannes Berg | 5d22c89 | 2010-06-10 10:21:40 +0200 | [diff] [blame] | 1904 | * calling ieee80211_start_tx_ba_cb_irqsafe, because the peer |
Johannes Berg | 827d42c | 2009-11-22 12:28:41 +0100 | [diff] [blame] | 1905 | * might receive the addBA frame and send a delBA right away! |
| 1906 | * |
Ron Rindjunsky | 1b7d03a | 2007-12-25 17:00:31 +0200 | [diff] [blame] | 1907 | * @IEEE80211_AMPDU_RX_START: start Rx aggregation |
| 1908 | * @IEEE80211_AMPDU_RX_STOP: stop Rx aggregation |
Ron Rindjunsky | 0df3ef4 | 2008-01-28 14:07:15 +0200 | [diff] [blame] | 1909 | * @IEEE80211_AMPDU_TX_START: start Tx aggregation |
| 1910 | * @IEEE80211_AMPDU_TX_STOP: stop Tx aggregation |
Johannes Berg | b172023 | 2009-03-23 17:28:39 +0100 | [diff] [blame] | 1911 | * @IEEE80211_AMPDU_TX_OPERATIONAL: TX aggregation has become operational |
Ron Rindjunsky | 1b7d03a | 2007-12-25 17:00:31 +0200 | [diff] [blame] | 1912 | */ |
| 1913 | enum ieee80211_ampdu_mlme_action { |
| 1914 | IEEE80211_AMPDU_RX_START, |
| 1915 | IEEE80211_AMPDU_RX_STOP, |
Ron Rindjunsky | 0df3ef4 | 2008-01-28 14:07:15 +0200 | [diff] [blame] | 1916 | IEEE80211_AMPDU_TX_START, |
| 1917 | IEEE80211_AMPDU_TX_STOP, |
Johannes Berg | b172023 | 2009-03-23 17:28:39 +0100 | [diff] [blame] | 1918 | IEEE80211_AMPDU_TX_OPERATIONAL, |
Ron Rindjunsky | 1b7d03a | 2007-12-25 17:00:31 +0200 | [diff] [blame] | 1919 | }; |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 1920 | |
| 1921 | /** |
Johannes Berg | 4049e09 | 2011-09-29 16:04:32 +0200 | [diff] [blame] | 1922 | * enum ieee80211_frame_release_type - frame release reason |
| 1923 | * @IEEE80211_FRAME_RELEASE_PSPOLL: frame released for PS-Poll |
Johannes Berg | 47086fc | 2011-09-29 16:04:33 +0200 | [diff] [blame] | 1924 | * @IEEE80211_FRAME_RELEASE_UAPSD: frame(s) released due to |
| 1925 | * frame received on trigger-enabled AC |
Johannes Berg | 4049e09 | 2011-09-29 16:04:32 +0200 | [diff] [blame] | 1926 | */ |
| 1927 | enum ieee80211_frame_release_type { |
| 1928 | IEEE80211_FRAME_RELEASE_PSPOLL, |
Johannes Berg | 47086fc | 2011-09-29 16:04:33 +0200 | [diff] [blame] | 1929 | IEEE80211_FRAME_RELEASE_UAPSD, |
Johannes Berg | 4049e09 | 2011-09-29 16:04:32 +0200 | [diff] [blame] | 1930 | }; |
| 1931 | |
| 1932 | /** |
Johannes Berg | 8f727ef | 2012-03-30 08:43:32 +0200 | [diff] [blame] | 1933 | * enum ieee80211_rate_control_changed - flags to indicate what changed |
| 1934 | * |
| 1935 | * @IEEE80211_RC_BW_CHANGED: The bandwidth that can be used to transmit |
| 1936 | * to this station changed. |
| 1937 | * @IEEE80211_RC_SMPS_CHANGED: The SMPS state of the station changed. |
Antonio Quartulli | e687f61 | 2012-08-12 18:24:55 +0200 | [diff] [blame] | 1938 | * @IEEE80211_RC_SUPP_RATES_CHANGED: The supported rate set of this peer |
| 1939 | * changed (in IBSS mode) due to discovering more information about |
| 1940 | * the peer. |
Johannes Berg | 8f727ef | 2012-03-30 08:43:32 +0200 | [diff] [blame] | 1941 | */ |
| 1942 | enum ieee80211_rate_control_changed { |
| 1943 | IEEE80211_RC_BW_CHANGED = BIT(0), |
| 1944 | IEEE80211_RC_SMPS_CHANGED = BIT(1), |
Antonio Quartulli | e687f61 | 2012-08-12 18:24:55 +0200 | [diff] [blame] | 1945 | IEEE80211_RC_SUPP_RATES_CHANGED = BIT(2), |
Johannes Berg | 8f727ef | 2012-03-30 08:43:32 +0200 | [diff] [blame] | 1946 | }; |
| 1947 | |
| 1948 | /** |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 1949 | * struct ieee80211_ops - callbacks from mac80211 to the driver |
| 1950 | * |
| 1951 | * This structure contains various callbacks that the driver may |
| 1952 | * handle or, in some cases, must handle, for example to configure |
| 1953 | * the hardware to a new channel or to transmit a frame. |
| 1954 | * |
| 1955 | * @tx: Handler that 802.11 module calls for each transmitted frame. |
| 1956 | * skb contains the buffer starting from the IEEE 802.11 header. |
| 1957 | * The low-level driver should send the frame out based on |
Johannes Berg | eefce91 | 2008-05-17 00:57:13 +0200 | [diff] [blame] | 1958 | * configuration in the TX control data. This handler should, |
Johannes Berg | 11127e9 | 2011-11-16 16:02:47 +0100 | [diff] [blame] | 1959 | * preferably, never fail and stop queues appropriately. |
Johannes Berg | 11127e9 | 2011-11-16 16:02:47 +0100 | [diff] [blame] | 1960 | * Must be atomic. |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 1961 | * |
| 1962 | * @start: Called before the first netdevice attached to the hardware |
| 1963 | * is enabled. This should turn on the hardware and must turn on |
| 1964 | * frame reception (for possibly enabled monitor interfaces.) |
| 1965 | * Returns negative error codes, these may be seen in userspace, |
| 1966 | * or zero. |
| 1967 | * When the device is started it should not have a MAC address |
| 1968 | * to avoid acknowledging frames before a non-monitor device |
| 1969 | * is added. |
Kalle Valo | e1781ed | 2009-12-23 13:15:47 +0100 | [diff] [blame] | 1970 | * Must be implemented and can sleep. |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 1971 | * |
| 1972 | * @stop: Called after last netdevice attached to the hardware |
| 1973 | * is disabled. This should turn off the hardware (at least |
| 1974 | * it must turn off frame reception.) |
| 1975 | * May be called right after add_interface if that rejects |
Luis R. Rodriguez | 42935ec | 2009-07-29 20:08:07 -0400 | [diff] [blame] | 1976 | * an interface. If you added any work onto the mac80211 workqueue |
| 1977 | * you should ensure to cancel it on this callback. |
Kalle Valo | e1781ed | 2009-12-23 13:15:47 +0100 | [diff] [blame] | 1978 | * Must be implemented and can sleep. |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 1979 | * |
Johannes Berg | eecc480 | 2011-05-04 15:37:29 +0200 | [diff] [blame] | 1980 | * @suspend: Suspend the device; mac80211 itself will quiesce before and |
| 1981 | * stop transmitting and doing any other configuration, and then |
| 1982 | * ask the device to suspend. This is only invoked when WoWLAN is |
| 1983 | * configured, otherwise the device is deconfigured completely and |
| 1984 | * reconfigured at resume time. |
Johannes Berg | 2b4562d | 2011-07-02 00:02:01 +0200 | [diff] [blame] | 1985 | * The driver may also impose special conditions under which it |
| 1986 | * wants to use the "normal" suspend (deconfigure), say if it only |
| 1987 | * supports WoWLAN when the device is associated. In this case, it |
| 1988 | * must return 1 from this function. |
Johannes Berg | eecc480 | 2011-05-04 15:37:29 +0200 | [diff] [blame] | 1989 | * |
| 1990 | * @resume: If WoWLAN was configured, this indicates that mac80211 is |
| 1991 | * now resuming its operation, after this the device must be fully |
| 1992 | * functional again. If this returns an error, the only way out is |
| 1993 | * to also unregister the device. If it returns 1, then mac80211 |
| 1994 | * will also go through the regular complete restart on resume. |
| 1995 | * |
Johannes Berg | d13e141 | 2012-06-09 10:31:09 +0200 | [diff] [blame] | 1996 | * @set_wakeup: Enable or disable wakeup when WoWLAN configuration is |
| 1997 | * modified. The reason is that device_set_wakeup_enable() is |
| 1998 | * supposed to be called when the configuration changes, not only |
| 1999 | * in suspend(). |
| 2000 | * |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 2001 | * @add_interface: Called when a netdevice attached to the hardware is |
Bob Copeland | e37d4df | 2008-10-20 21:20:27 -0400 | [diff] [blame] | 2002 | * enabled. Because it is not called for monitor mode devices, @start |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 2003 | * and @stop must be implemented. |
| 2004 | * The driver should perform any initialization it needs before |
| 2005 | * the device can be enabled. The initial configuration for the |
| 2006 | * interface is given in the conf parameter. |
| 2007 | * The callback may refuse to add an interface by returning a |
| 2008 | * negative error code (which will be seen in userspace.) |
Kalle Valo | e1781ed | 2009-12-23 13:15:47 +0100 | [diff] [blame] | 2009 | * Must be implemented and can sleep. |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 2010 | * |
Johannes Berg | 34d4bc4 | 2010-08-27 12:35:58 +0200 | [diff] [blame] | 2011 | * @change_interface: Called when a netdevice changes type. This callback |
| 2012 | * is optional, but only if it is supported can interface types be |
| 2013 | * switched while the interface is UP. The callback may sleep. |
| 2014 | * Note that while an interface is being switched, it will not be |
| 2015 | * found by the interface iteration callbacks. |
| 2016 | * |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 2017 | * @remove_interface: Notifies a driver that an interface is going down. |
| 2018 | * The @stop callback is called after this if it is the last interface |
| 2019 | * and no monitor interfaces are present. |
| 2020 | * When all interfaces are removed, the MAC address in the hardware |
| 2021 | * must be cleared so the device no longer acknowledges packets, |
| 2022 | * the mac_addr member of the conf structure is, however, set to the |
| 2023 | * MAC address of the device going away. |
Kalle Valo | e1781ed | 2009-12-23 13:15:47 +0100 | [diff] [blame] | 2024 | * Hence, this callback must be implemented. It can sleep. |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 2025 | * |
| 2026 | * @config: Handler for configuration requests. IEEE 802.11 code calls this |
| 2027 | * function to change hardware configuration, e.g., channel. |
Bob Copeland | 6dd1bf3 | 2009-01-08 21:00:34 -0500 | [diff] [blame] | 2028 | * This function should never fail but returns a negative error code |
Kalle Valo | e1781ed | 2009-12-23 13:15:47 +0100 | [diff] [blame] | 2029 | * if it does. The callback can sleep. |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 2030 | * |
Johannes Berg | 471b3ef | 2007-12-28 14:32:58 +0100 | [diff] [blame] | 2031 | * @bss_info_changed: Handler for configuration requests related to BSS |
| 2032 | * parameters that may vary during BSS's lifespan, and may affect low |
| 2033 | * level driver (e.g. assoc/disassoc status, erp parameters). |
| 2034 | * This function should not be used if no BSS has been set, unless |
| 2035 | * for association indication. The @changed parameter indicates which |
Kalle Valo | e1781ed | 2009-12-23 13:15:47 +0100 | [diff] [blame] | 2036 | * of the bss parameters has changed when a call is made. The callback |
| 2037 | * can sleep. |
Johannes Berg | 471b3ef | 2007-12-28 14:32:58 +0100 | [diff] [blame] | 2038 | * |
Johannes Berg | 3ac64be | 2009-08-17 16:16:53 +0200 | [diff] [blame] | 2039 | * @prepare_multicast: Prepare for multicast filter configuration. |
| 2040 | * This callback is optional, and its return value is passed |
| 2041 | * to configure_filter(). This callback must be atomic. |
| 2042 | * |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 2043 | * @configure_filter: Configure the device's RX filter. |
| 2044 | * See the section "Frame filtering" for more information. |
Kalle Valo | e1781ed | 2009-12-23 13:15:47 +0100 | [diff] [blame] | 2045 | * This callback must be implemented and can sleep. |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 2046 | * |
Luis R. Rodriguez | 546c80c9 | 2008-08-14 11:43:20 -0700 | [diff] [blame] | 2047 | * @set_tim: Set TIM bit. mac80211 calls this function when a TIM bit |
Johannes Berg | 17741cd | 2008-09-11 00:02:02 +0200 | [diff] [blame] | 2048 | * must be set or cleared for a given STA. Must be atomic. |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 2049 | * |
| 2050 | * @set_key: See the section "Hardware crypto acceleration" |
Kalle Valo | e1781ed | 2009-12-23 13:15:47 +0100 | [diff] [blame] | 2051 | * This callback is only called between add_interface and |
| 2052 | * remove_interface calls, i.e. while the given virtual interface |
Johannes Berg | dc822b5 | 2008-12-29 12:55:09 +0100 | [diff] [blame] | 2053 | * is enabled. |
Bob Copeland | 6dd1bf3 | 2009-01-08 21:00:34 -0500 | [diff] [blame] | 2054 | * Returns a negative error code if the key can't be added. |
Kalle Valo | e1781ed | 2009-12-23 13:15:47 +0100 | [diff] [blame] | 2055 | * The callback can sleep. |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 2056 | * |
Emmanuel Grumbach | 9ae4fda | 2008-03-20 15:06:42 +0200 | [diff] [blame] | 2057 | * @update_tkip_key: See the section "Hardware crypto acceleration" |
| 2058 | * This callback will be called in the context of Rx. Called for drivers |
| 2059 | * which set IEEE80211_KEY_FLAG_TKIP_REQ_RX_P1_KEY. |
Kalle Valo | eb807fb | 2010-01-24 14:55:12 +0200 | [diff] [blame] | 2060 | * The callback must be atomic. |
Emmanuel Grumbach | 9ae4fda | 2008-03-20 15:06:42 +0200 | [diff] [blame] | 2061 | * |
Johannes Berg | c68f4b8 | 2011-07-05 16:35:41 +0200 | [diff] [blame] | 2062 | * @set_rekey_data: If the device supports GTK rekeying, for example while the |
| 2063 | * host is suspended, it can assign this callback to retrieve the data |
| 2064 | * necessary to do GTK rekeying, this is the KEK, KCK and replay counter. |
| 2065 | * After rekeying was done it should (for example during resume) notify |
| 2066 | * userspace of the new replay counter using ieee80211_gtk_rekey_notify(). |
| 2067 | * |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 2068 | * @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] | 2069 | * the scan state machine in stack. The scan must honour the channel |
Kalle Valo | 9050bdd | 2009-03-22 21:57:21 +0200 | [diff] [blame] | 2070 | * configuration done by the regulatory agent in the wiphy's |
| 2071 | * registered bands. The hardware (or the driver) needs to make sure |
Johannes Berg | de95a54 | 2009-04-01 11:58:36 +0200 | [diff] [blame] | 2072 | * that power save is disabled. |
| 2073 | * The @req ie/ie_len members are rewritten by mac80211 to contain the |
| 2074 | * entire IEs after the SSID, so that drivers need not look at these |
| 2075 | * at all but just send them after the SSID -- mac80211 includes the |
| 2076 | * (extended) supported rates and HT information (where applicable). |
| 2077 | * When the scan finishes, ieee80211_scan_completed() must be called; |
| 2078 | * note that it also must be called when the scan cannot finish due to |
| 2079 | * any error unless this callback returned a negative error code. |
Kalle Valo | e1781ed | 2009-12-23 13:15:47 +0100 | [diff] [blame] | 2080 | * The callback can sleep. |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 2081 | * |
Eliad Peller | b856439 | 2011-06-13 12:47:30 +0300 | [diff] [blame] | 2082 | * @cancel_hw_scan: Ask the low-level tp cancel the active hw scan. |
| 2083 | * The driver should ask the hardware to cancel the scan (if possible), |
| 2084 | * but the scan will be completed only after the driver will call |
| 2085 | * ieee80211_scan_completed(). |
| 2086 | * This callback is needed for wowlan, to prevent enqueueing a new |
| 2087 | * scan_work after the low-level driver was already suspended. |
| 2088 | * The callback can sleep. |
| 2089 | * |
Luciano Coelho | 79f460c | 2011-05-11 17:09:36 +0300 | [diff] [blame] | 2090 | * @sched_scan_start: Ask the hardware to start scanning repeatedly at |
| 2091 | * specific intervals. The driver must call the |
| 2092 | * ieee80211_sched_scan_results() function whenever it finds results. |
| 2093 | * This process will continue until sched_scan_stop is called. |
| 2094 | * |
| 2095 | * @sched_scan_stop: Tell the hardware to stop an ongoing scheduled scan. |
| 2096 | * |
Michael Buesch | 80e775b | 2009-02-20 15:37:03 +0100 | [diff] [blame] | 2097 | * @sw_scan_start: Notifier function that is called just before a software scan |
| 2098 | * is started. Can be NULL, if the driver doesn't need this notification. |
Kalle Valo | e1781ed | 2009-12-23 13:15:47 +0100 | [diff] [blame] | 2099 | * The callback can sleep. |
Michael Buesch | 80e775b | 2009-02-20 15:37:03 +0100 | [diff] [blame] | 2100 | * |
Kalle Valo | e1781ed | 2009-12-23 13:15:47 +0100 | [diff] [blame] | 2101 | * @sw_scan_complete: Notifier function that is called just after a |
| 2102 | * software scan finished. Can be NULL, if the driver doesn't need |
| 2103 | * this notification. |
| 2104 | * The callback can sleep. |
Michael Buesch | 80e775b | 2009-02-20 15:37:03 +0100 | [diff] [blame] | 2105 | * |
Bob Copeland | 6dd1bf3 | 2009-01-08 21:00:34 -0500 | [diff] [blame] | 2106 | * @get_stats: Return low-level statistics. |
| 2107 | * Returns zero if statistics are available. |
Kalle Valo | e1781ed | 2009-12-23 13:15:47 +0100 | [diff] [blame] | 2108 | * The callback can sleep. |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 2109 | * |
Johannes Berg | 62da92f | 2007-12-19 02:03:31 +0100 | [diff] [blame] | 2110 | * @get_tkip_seq: If your device implements TKIP encryption in hardware this |
| 2111 | * callback should be provided to read the TKIP transmit IVs (both IV32 |
| 2112 | * and IV16) for the given key from hardware. |
Kalle Valo | e1781ed | 2009-12-23 13:15:47 +0100 | [diff] [blame] | 2113 | * The callback must be atomic. |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 2114 | * |
Arik Nemtsov | f23a478 | 2010-11-08 11:51:06 +0200 | [diff] [blame] | 2115 | * @set_frag_threshold: Configuration of fragmentation threshold. Assign this |
| 2116 | * if the device does fragmentation by itself; if this callback is |
| 2117 | * implemented then the stack will not do fragmentation. |
| 2118 | * The callback can sleep. |
| 2119 | * |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 2120 | * @set_rts_threshold: Configuration of RTS threshold (if device needs it) |
Kalle Valo | e1781ed | 2009-12-23 13:15:47 +0100 | [diff] [blame] | 2121 | * The callback can sleep. |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 2122 | * |
Johannes Berg | 34e8950 | 2010-02-03 13:59:58 +0100 | [diff] [blame] | 2123 | * @sta_add: Notifies low level driver about addition of an associated station, |
| 2124 | * AP, IBSS/WDS/mesh peer etc. This callback can sleep. |
| 2125 | * |
| 2126 | * @sta_remove: Notifies low level driver about removal of an associated |
| 2127 | * station, AP, IBSS/WDS/mesh peer etc. This callback can sleep. |
| 2128 | * |
| 2129 | * @sta_notify: Notifies low level driver about power state transition of an |
Arik Nemtsov | d057e5a | 2011-01-31 22:29:13 +0200 | [diff] [blame] | 2130 | * associated station, AP, IBSS/WDS/mesh peer etc. For a VIF operating |
| 2131 | * in AP mode, this callback will not be called when the flag |
| 2132 | * %IEEE80211_HW_AP_LINK_PS is set. Must be atomic. |
Christian Lamparter | 4571d3b | 2008-11-30 00:48:41 +0100 | [diff] [blame] | 2133 | * |
Johannes Berg | f09603a | 2012-01-20 13:55:21 +0100 | [diff] [blame] | 2134 | * @sta_state: Notifies low level driver about state transition of a |
| 2135 | * station (which can be the AP, a client, IBSS/WDS/mesh peer etc.) |
| 2136 | * This callback is mutually exclusive with @sta_add/@sta_remove. |
| 2137 | * It must not fail for down transitions but may fail for transitions |
| 2138 | * up the list of states. |
| 2139 | * The callback can sleep. |
| 2140 | * |
Johannes Berg | 8f727ef | 2012-03-30 08:43:32 +0200 | [diff] [blame] | 2141 | * @sta_rc_update: Notifies the driver of changes to the bitrates that can be |
| 2142 | * used to transmit to the station. The changes are advertised with bits |
| 2143 | * from &enum ieee80211_rate_control_changed and the values are reflected |
| 2144 | * in the station data. This callback should only be used when the driver |
| 2145 | * uses hardware rate control (%IEEE80211_HW_HAS_RATE_CONTROL) since |
| 2146 | * otherwise the rate control algorithm is notified directly. |
| 2147 | * Must be atomic. |
| 2148 | * |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 2149 | * @conf_tx: Configure TX queue parameters (EDCF (aifs, cw_min, cw_max), |
Johannes Berg | fe3fa82 | 2008-09-08 11:05:09 +0200 | [diff] [blame] | 2150 | * bursting) for a hardware TX queue. |
Bob Copeland | 6dd1bf3 | 2009-01-08 21:00:34 -0500 | [diff] [blame] | 2151 | * Returns a negative error code on failure. |
Kalle Valo | e1781ed | 2009-12-23 13:15:47 +0100 | [diff] [blame] | 2152 | * The callback can sleep. |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 2153 | * |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 2154 | * @get_tsf: Get the current TSF timer value from firmware/hardware. Currently, |
Alina Friedrichsen | 3b5d665 | 2009-01-24 07:09:59 +0100 | [diff] [blame] | 2155 | * this is only used for IBSS mode BSSID merging and debugging. Is not a |
Alina Friedrichsen | 7b08b3b | 2009-02-05 17:58:34 +0100 | [diff] [blame] | 2156 | * required function. |
Kalle Valo | e1781ed | 2009-12-23 13:15:47 +0100 | [diff] [blame] | 2157 | * The callback can sleep. |
Alina Friedrichsen | 3b5d665 | 2009-01-24 07:09:59 +0100 | [diff] [blame] | 2158 | * |
| 2159 | * @set_tsf: Set the TSF timer to the specified value in the firmware/hardware. |
| 2160 | * Currently, this is only used for IBSS mode debugging. Is not a |
Alina Friedrichsen | 7b08b3b | 2009-02-05 17:58:34 +0100 | [diff] [blame] | 2161 | * required function. |
Kalle Valo | e1781ed | 2009-12-23 13:15:47 +0100 | [diff] [blame] | 2162 | * The callback can sleep. |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 2163 | * |
| 2164 | * @reset_tsf: Reset the TSF timer and allow firmware/hardware to synchronize |
| 2165 | * with other STAs in the IBSS. This is only used in IBSS mode. This |
| 2166 | * function is optional if the firmware/hardware takes full care of |
| 2167 | * TSF synchronization. |
Kalle Valo | e1781ed | 2009-12-23 13:15:47 +0100 | [diff] [blame] | 2168 | * The callback can sleep. |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 2169 | * |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 2170 | * @tx_last_beacon: Determine whether the last IBSS beacon was sent by us. |
| 2171 | * This is needed only for IBSS mode and the result of this function is |
| 2172 | * used to determine whether to reply to Probe Requests. |
Bob Copeland | 6dd1bf3 | 2009-01-08 21:00:34 -0500 | [diff] [blame] | 2173 | * Returns non-zero if this device sent the last beacon. |
Kalle Valo | e1781ed | 2009-12-23 13:15:47 +0100 | [diff] [blame] | 2174 | * The callback can sleep. |
Ron Rindjunsky | d3c990f | 2007-11-26 16:14:34 +0200 | [diff] [blame] | 2175 | * |
Ron Rindjunsky | 1b7d03a | 2007-12-25 17:00:31 +0200 | [diff] [blame] | 2176 | * @ampdu_action: Perform a certain A-MPDU action |
| 2177 | * The RA/TID combination determines the destination and TID we want |
| 2178 | * the ampdu action to be performed for. The action is defined through |
| 2179 | * ieee80211_ampdu_mlme_action. Starting sequence number (@ssn) |
Bob Copeland | 6dd1bf3 | 2009-01-08 21:00:34 -0500 | [diff] [blame] | 2180 | * is the first frame we expect to perform the action on. Notice |
Ron Rindjunsky | 0df3ef4 | 2008-01-28 14:07:15 +0200 | [diff] [blame] | 2181 | * that TX/RX_STOP can pass NULL for this parameter. |
Johannes Berg | 0b01f03 | 2011-01-18 13:51:05 +0100 | [diff] [blame] | 2182 | * The @buf_size parameter is only valid when the action is set to |
| 2183 | * %IEEE80211_AMPDU_TX_OPERATIONAL and indicates the peer's reorder |
Johannes Berg | 5312c3f | 2011-04-01 13:52:34 +0200 | [diff] [blame] | 2184 | * buffer size (number of subframes) for this session -- the driver |
| 2185 | * may neither send aggregates containing more subframes than this |
| 2186 | * nor send aggregates in a way that lost frames would exceed the |
| 2187 | * buffer size. If just limiting the aggregate size, this would be |
| 2188 | * possible with a buf_size of 8: |
| 2189 | * - TX: 1.....7 |
| 2190 | * - RX: 2....7 (lost frame #1) |
| 2191 | * - TX: 8..1... |
| 2192 | * which is invalid since #1 was now re-transmitted well past the |
| 2193 | * buffer size of 8. Correct ways to retransmit #1 would be: |
| 2194 | * - TX: 1 or 18 or 81 |
| 2195 | * Even "189" would be wrong since 1 could be lost again. |
| 2196 | * |
Bob Copeland | 6dd1bf3 | 2009-01-08 21:00:34 -0500 | [diff] [blame] | 2197 | * Returns a negative error code on failure. |
Johannes Berg | 85ad181 | 2010-06-10 10:21:49 +0200 | [diff] [blame] | 2198 | * The callback can sleep. |
Johannes Berg | 1f87f7d | 2009-06-02 13:01:41 +0200 | [diff] [blame] | 2199 | * |
Randy Dunlap | 4e8998f | 2010-05-21 11:28:33 -0700 | [diff] [blame] | 2200 | * @get_survey: Return per-channel survey information |
| 2201 | * |
Johannes Berg | 1f87f7d | 2009-06-02 13:01:41 +0200 | [diff] [blame] | 2202 | * @rfkill_poll: Poll rfkill hardware state. If you need this, you also |
| 2203 | * need to set wiphy->rfkill_poll to %true before registration, |
| 2204 | * and need to call wiphy_rfkill_set_hw_state() in the callback. |
Kalle Valo | e1781ed | 2009-12-23 13:15:47 +0100 | [diff] [blame] | 2205 | * The callback can sleep. |
Johannes Berg | aff89a9 | 2009-07-01 21:26:51 +0200 | [diff] [blame] | 2206 | * |
Lukáš Turek | 310bc67 | 2009-12-21 22:50:48 +0100 | [diff] [blame] | 2207 | * @set_coverage_class: Set slot time for given coverage class as specified |
| 2208 | * in IEEE 802.11-2007 section 17.3.8.6 and modify ACK timeout |
| 2209 | * accordingly. This callback is not required and may sleep. |
| 2210 | * |
Johannes Berg | aff89a9 | 2009-07-01 21:26:51 +0200 | [diff] [blame] | 2211 | * @testmode_cmd: Implement a cfg80211 test mode command. |
Kalle Valo | e1781ed | 2009-12-23 13:15:47 +0100 | [diff] [blame] | 2212 | * The callback can sleep. |
Wey-Yi Guy | 71063f0 | 2011-05-20 09:05:54 -0700 | [diff] [blame] | 2213 | * @testmode_dump: Implement a cfg80211 test mode dump. The callback can sleep. |
Johannes Berg | a80f7c0 | 2009-12-23 13:15:32 +0100 | [diff] [blame] | 2214 | * |
| 2215 | * @flush: Flush all pending frames from the hardware queue, making sure |
| 2216 | * that the hardware queues are empty. If the parameter @drop is set |
Kalle Valo | e1781ed | 2009-12-23 13:15:47 +0100 | [diff] [blame] | 2217 | * to %true, pending frames may be dropped. The callback can sleep. |
Johannes Berg | 5ce6e43 | 2010-05-11 16:20:57 +0200 | [diff] [blame] | 2218 | * |
| 2219 | * @channel_switch: Drivers that need (or want) to offload the channel |
| 2220 | * switch operation for CSAs received from the AP may implement this |
| 2221 | * callback. They must then call ieee80211_chswitch_done() to indicate |
| 2222 | * completion of the channel switch. |
John W. Linville | 4e6cbfd | 2010-07-29 16:14:13 -0400 | [diff] [blame] | 2223 | * |
| 2224 | * @napi_poll: Poll Rx queue for incoming data frames. |
Bruno Randolf | 79b1c46 | 2010-11-24 14:34:41 +0900 | [diff] [blame] | 2225 | * |
| 2226 | * @set_antenna: Set antenna configuration (tx_ant, rx_ant) on the device. |
| 2227 | * Parameters are bitmaps of allowed antennas to use for TX/RX. Drivers may |
| 2228 | * reject TX/RX mask combinations they cannot support by returning -EINVAL |
| 2229 | * (also see nl80211.h @NL80211_ATTR_WIPHY_ANTENNA_TX). |
| 2230 | * |
| 2231 | * @get_antenna: Get current antenna configuration from device (tx_ant, rx_ant). |
Johannes Berg | 4976b4e | 2011-01-04 13:02:32 +0100 | [diff] [blame] | 2232 | * |
| 2233 | * @remain_on_channel: Starts an off-channel period on the given channel, must |
| 2234 | * call back to ieee80211_ready_on_channel() when on that channel. Note |
| 2235 | * that normal channel traffic is not stopped as this is intended for hw |
| 2236 | * offload. Frames to transmit on the off-channel channel are transmitted |
| 2237 | * normally except for the %IEEE80211_TX_CTL_TX_OFFCHAN flag. When the |
| 2238 | * duration (which will always be non-zero) expires, the driver must call |
Johannes Berg | 196ac1c | 2012-06-05 14:28:40 +0200 | [diff] [blame] | 2239 | * ieee80211_remain_on_channel_expired(). |
Johannes Berg | 196ac1c | 2012-06-05 14:28:40 +0200 | [diff] [blame] | 2240 | * Note that this callback may be called while the device is in IDLE and |
| 2241 | * must be accepted in this case. |
| 2242 | * This callback may sleep. |
Johannes Berg | 4976b4e | 2011-01-04 13:02:32 +0100 | [diff] [blame] | 2243 | * @cancel_remain_on_channel: Requests that an ongoing off-channel period is |
| 2244 | * aborted before it expires. This callback may sleep. |
John W. Linville | 38c0915 | 2011-03-07 16:19:18 -0500 | [diff] [blame] | 2245 | * |
| 2246 | * @set_ringparam: Set tx and rx ring sizes. |
| 2247 | * |
| 2248 | * @get_ringparam: Get tx and rx ring current and maximum sizes. |
Vivek Natarajan | e8306f9 | 2011-04-06 11:41:10 +0530 | [diff] [blame] | 2249 | * |
| 2250 | * @tx_frames_pending: Check if there is any pending frame in the hardware |
| 2251 | * queues before entering power save. |
Sujith Manoharan | bdbfd6b | 2011-04-27 16:56:51 +0530 | [diff] [blame] | 2252 | * |
| 2253 | * @set_bitrate_mask: Set a mask of rates to be used for rate control selection |
| 2254 | * when transmitting a frame. Currently only legacy rates are handled. |
| 2255 | * The callback can sleep. |
Meenakshi Venkataraman | 615f7b9 | 2011-07-08 08:46:22 -0700 | [diff] [blame] | 2256 | * @rssi_callback: Notify driver when the average RSSI goes above/below |
| 2257 | * thresholds that were registered previously. The callback can sleep. |
Johannes Berg | 4049e09 | 2011-09-29 16:04:32 +0200 | [diff] [blame] | 2258 | * |
| 2259 | * @release_buffered_frames: Release buffered frames according to the given |
| 2260 | * parameters. In the case where the driver buffers some frames for |
| 2261 | * sleeping stations mac80211 will use this callback to tell the driver |
| 2262 | * to release some frames, either for PS-poll or uAPSD. |
| 2263 | * Note that if the @more_data paramter is %false the driver must check |
| 2264 | * if there are more frames on the given TIDs, and if there are more than |
| 2265 | * the frames being released then it must still set the more-data bit in |
| 2266 | * the frame. If the @more_data parameter is %true, then of course the |
| 2267 | * more-data bit must always be set. |
| 2268 | * The @tids parameter tells the driver which TIDs to release frames |
| 2269 | * from, for PS-poll it will always have only a single bit set. |
Johannes Berg | deeaee1 | 2011-09-29 16:04:35 +0200 | [diff] [blame] | 2270 | * In the case this is used for a PS-poll initiated release, the |
| 2271 | * @num_frames parameter will always be 1 so code can be shared. In |
| 2272 | * this case the driver must also set %IEEE80211_TX_STATUS_EOSP flag |
| 2273 | * on the TX status (and must report TX status) so that the PS-poll |
| 2274 | * period is properly ended. This is used to avoid sending multiple |
| 2275 | * responses for a retried PS-poll frame. |
Johannes Berg | 4049e09 | 2011-09-29 16:04:32 +0200 | [diff] [blame] | 2276 | * In the case this is used for uAPSD, the @num_frames parameter may be |
| 2277 | * bigger than one, but the driver may send fewer frames (it must send |
| 2278 | * at least one, however). In this case it is also responsible for |
Johannes Berg | 47086fc | 2011-09-29 16:04:33 +0200 | [diff] [blame] | 2279 | * setting the EOSP flag in the QoS header of the frames. Also, when the |
| 2280 | * service period ends, the driver must set %IEEE80211_TX_STATUS_EOSP |
Johannes Berg | 37fbd90 | 2011-09-29 16:04:39 +0200 | [diff] [blame] | 2281 | * on the last frame in the SP. Alternatively, it may call the function |
| 2282 | * ieee80211_sta_eosp_irqsafe() to inform mac80211 of the end of the SP. |
Johannes Berg | 4049e09 | 2011-09-29 16:04:32 +0200 | [diff] [blame] | 2283 | * This callback must be atomic. |
Johannes Berg | 40b9640 | 2011-09-29 16:04:38 +0200 | [diff] [blame] | 2284 | * @allow_buffered_frames: Prepare device to allow the given number of frames |
| 2285 | * to go out to the given station. The frames will be sent by mac80211 |
| 2286 | * via the usual TX path after this call. The TX information for frames |
Johannes Berg | 02f2f1a | 2012-02-27 12:18:30 +0100 | [diff] [blame] | 2287 | * released will also have the %IEEE80211_TX_CTL_NO_PS_BUFFER flag set |
Johannes Berg | 40b9640 | 2011-09-29 16:04:38 +0200 | [diff] [blame] | 2288 | * and the last one will also have %IEEE80211_TX_STATUS_EOSP set. In case |
| 2289 | * frames from multiple TIDs are released and the driver might reorder |
| 2290 | * them between the TIDs, it must set the %IEEE80211_TX_STATUS_EOSP flag |
| 2291 | * on the last frame and clear it on all others and also handle the EOSP |
Johannes Berg | 37fbd90 | 2011-09-29 16:04:39 +0200 | [diff] [blame] | 2292 | * bit in the QoS header correctly. Alternatively, it can also call the |
| 2293 | * ieee80211_sta_eosp_irqsafe() function. |
Johannes Berg | 40b9640 | 2011-09-29 16:04:38 +0200 | [diff] [blame] | 2294 | * The @tids parameter is a bitmap and tells the driver which TIDs the |
| 2295 | * frames will be on; it will at most have two bits set. |
| 2296 | * This callback must be atomic. |
Ben Greear | e352114 | 2012-04-23 12:50:31 -0700 | [diff] [blame] | 2297 | * |
| 2298 | * @get_et_sset_count: Ethtool API to get string-set count. |
| 2299 | * |
| 2300 | * @get_et_stats: Ethtool API to get a set of u64 stats. |
| 2301 | * |
| 2302 | * @get_et_strings: Ethtool API to get a set of strings to describe stats |
| 2303 | * and perhaps other supported types of ethtool data-sets. |
| 2304 | * |
Victor Goldenshtein | 66572cf | 2012-06-21 10:56:46 +0300 | [diff] [blame] | 2305 | * @get_rssi: Get current signal strength in dBm, the function is optional |
| 2306 | * and can sleep. |
| 2307 | * |
Johannes Berg | a1845fc | 2012-06-27 13:18:36 +0200 | [diff] [blame] | 2308 | * @mgd_prepare_tx: Prepare for transmitting a management frame for association |
| 2309 | * before associated. In multi-channel scenarios, a virtual interface is |
| 2310 | * bound to a channel before it is associated, but as it isn't associated |
| 2311 | * yet it need not necessarily be given airtime, in particular since any |
| 2312 | * transmission to a P2P GO needs to be synchronized against the GO's |
| 2313 | * powersave state. mac80211 will call this function before transmitting a |
| 2314 | * management frame prior to having successfully associated to allow the |
| 2315 | * driver to give it channel time for the transmission, to get a response |
| 2316 | * and to be able to synchronize with the GO. |
| 2317 | * The callback will be called before each transmission and upon return |
| 2318 | * mac80211 will transmit the frame right away. |
| 2319 | * The callback is optional and can (should!) sleep. |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 2320 | */ |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 2321 | struct ieee80211_ops { |
Thomas Huehn | 36323f8 | 2012-07-23 21:33:42 +0200 | [diff] [blame] | 2322 | void (*tx)(struct ieee80211_hw *hw, |
| 2323 | struct ieee80211_tx_control *control, |
| 2324 | struct sk_buff *skb); |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 2325 | int (*start)(struct ieee80211_hw *hw); |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 2326 | void (*stop)(struct ieee80211_hw *hw); |
Johannes Berg | eecc480 | 2011-05-04 15:37:29 +0200 | [diff] [blame] | 2327 | #ifdef CONFIG_PM |
| 2328 | int (*suspend)(struct ieee80211_hw *hw, struct cfg80211_wowlan *wowlan); |
| 2329 | int (*resume)(struct ieee80211_hw *hw); |
Johannes Berg | 6d52563 | 2012-04-04 15:05:25 +0200 | [diff] [blame] | 2330 | void (*set_wakeup)(struct ieee80211_hw *hw, bool enabled); |
Johannes Berg | eecc480 | 2011-05-04 15:37:29 +0200 | [diff] [blame] | 2331 | #endif |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 2332 | int (*add_interface)(struct ieee80211_hw *hw, |
Johannes Berg | 1ed32e4 | 2009-12-23 13:15:45 +0100 | [diff] [blame] | 2333 | struct ieee80211_vif *vif); |
Johannes Berg | 34d4bc4 | 2010-08-27 12:35:58 +0200 | [diff] [blame] | 2334 | int (*change_interface)(struct ieee80211_hw *hw, |
| 2335 | struct ieee80211_vif *vif, |
Johannes Berg | 2ca27bc | 2010-09-16 14:58:23 +0200 | [diff] [blame] | 2336 | enum nl80211_iftype new_type, bool p2p); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 2337 | void (*remove_interface)(struct ieee80211_hw *hw, |
Johannes Berg | 1ed32e4 | 2009-12-23 13:15:45 +0100 | [diff] [blame] | 2338 | struct ieee80211_vif *vif); |
Johannes Berg | e897558 | 2008-10-09 12:18:51 +0200 | [diff] [blame] | 2339 | int (*config)(struct ieee80211_hw *hw, u32 changed); |
Johannes Berg | 471b3ef | 2007-12-28 14:32:58 +0100 | [diff] [blame] | 2340 | void (*bss_info_changed)(struct ieee80211_hw *hw, |
| 2341 | struct ieee80211_vif *vif, |
| 2342 | struct ieee80211_bss_conf *info, |
| 2343 | u32 changed); |
Johannes Berg | b2abb6e | 2011-07-19 10:39:53 +0200 | [diff] [blame] | 2344 | |
Johannes Berg | 3ac64be | 2009-08-17 16:16:53 +0200 | [diff] [blame] | 2345 | u64 (*prepare_multicast)(struct ieee80211_hw *hw, |
Jiri Pirko | 22bedad3 | 2010-04-01 21:22:57 +0000 | [diff] [blame] | 2346 | struct netdev_hw_addr_list *mc_list); |
Johannes Berg | 4150c57 | 2007-09-17 01:29:23 -0400 | [diff] [blame] | 2347 | void (*configure_filter)(struct ieee80211_hw *hw, |
| 2348 | unsigned int changed_flags, |
| 2349 | unsigned int *total_flags, |
Johannes Berg | 3ac64be | 2009-08-17 16:16:53 +0200 | [diff] [blame] | 2350 | u64 multicast); |
Johannes Berg | 17741cd | 2008-09-11 00:02:02 +0200 | [diff] [blame] | 2351 | int (*set_tim)(struct ieee80211_hw *hw, struct ieee80211_sta *sta, |
| 2352 | bool set); |
Johannes Berg | ea49c35 | 2007-09-18 17:29:21 -0400 | [diff] [blame] | 2353 | int (*set_key)(struct ieee80211_hw *hw, enum set_key_cmd cmd, |
Johannes Berg | dc822b5 | 2008-12-29 12:55:09 +0100 | [diff] [blame] | 2354 | struct ieee80211_vif *vif, struct ieee80211_sta *sta, |
Johannes Berg | 11a843b | 2007-08-28 17:01:55 -0400 | [diff] [blame] | 2355 | struct ieee80211_key_conf *key); |
Emmanuel Grumbach | 9ae4fda | 2008-03-20 15:06:42 +0200 | [diff] [blame] | 2356 | void (*update_tkip_key)(struct ieee80211_hw *hw, |
Johannes Berg | b3fbdcf | 2010-01-21 11:40:47 +0100 | [diff] [blame] | 2357 | struct ieee80211_vif *vif, |
| 2358 | struct ieee80211_key_conf *conf, |
| 2359 | struct ieee80211_sta *sta, |
| 2360 | u32 iv32, u16 *phase1key); |
Johannes Berg | c68f4b8 | 2011-07-05 16:35:41 +0200 | [diff] [blame] | 2361 | void (*set_rekey_data)(struct ieee80211_hw *hw, |
| 2362 | struct ieee80211_vif *vif, |
| 2363 | struct cfg80211_gtk_rekey_data *data); |
Johannes Berg | a060bbf | 2010-04-27 11:59:34 +0200 | [diff] [blame] | 2364 | int (*hw_scan)(struct ieee80211_hw *hw, struct ieee80211_vif *vif, |
Johannes Berg | 2a51931 | 2009-02-10 21:25:55 +0100 | [diff] [blame] | 2365 | struct cfg80211_scan_request *req); |
Eliad Peller | b856439 | 2011-06-13 12:47:30 +0300 | [diff] [blame] | 2366 | void (*cancel_hw_scan)(struct ieee80211_hw *hw, |
| 2367 | struct ieee80211_vif *vif); |
Luciano Coelho | 79f460c | 2011-05-11 17:09:36 +0300 | [diff] [blame] | 2368 | int (*sched_scan_start)(struct ieee80211_hw *hw, |
| 2369 | struct ieee80211_vif *vif, |
| 2370 | struct cfg80211_sched_scan_request *req, |
| 2371 | struct ieee80211_sched_scan_ies *ies); |
| 2372 | void (*sched_scan_stop)(struct ieee80211_hw *hw, |
| 2373 | struct ieee80211_vif *vif); |
Michael Buesch | 80e775b | 2009-02-20 15:37:03 +0100 | [diff] [blame] | 2374 | void (*sw_scan_start)(struct ieee80211_hw *hw); |
| 2375 | void (*sw_scan_complete)(struct ieee80211_hw *hw); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 2376 | int (*get_stats)(struct ieee80211_hw *hw, |
| 2377 | struct ieee80211_low_level_stats *stats); |
Johannes Berg | 62da92f | 2007-12-19 02:03:31 +0100 | [diff] [blame] | 2378 | void (*get_tkip_seq)(struct ieee80211_hw *hw, u8 hw_key_idx, |
| 2379 | u32 *iv32, u16 *iv16); |
Arik Nemtsov | f23a478 | 2010-11-08 11:51:06 +0200 | [diff] [blame] | 2380 | int (*set_frag_threshold)(struct ieee80211_hw *hw, u32 value); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 2381 | int (*set_rts_threshold)(struct ieee80211_hw *hw, u32 value); |
Johannes Berg | 34e8950 | 2010-02-03 13:59:58 +0100 | [diff] [blame] | 2382 | int (*sta_add)(struct ieee80211_hw *hw, struct ieee80211_vif *vif, |
| 2383 | struct ieee80211_sta *sta); |
| 2384 | int (*sta_remove)(struct ieee80211_hw *hw, struct ieee80211_vif *vif, |
| 2385 | struct ieee80211_sta *sta); |
Johannes Berg | 32bfd35 | 2007-12-19 01:31:26 +0100 | [diff] [blame] | 2386 | void (*sta_notify)(struct ieee80211_hw *hw, struct ieee80211_vif *vif, |
Johannes Berg | 17741cd | 2008-09-11 00:02:02 +0200 | [diff] [blame] | 2387 | enum sta_notify_cmd, struct ieee80211_sta *sta); |
Johannes Berg | f09603a | 2012-01-20 13:55:21 +0100 | [diff] [blame] | 2388 | int (*sta_state)(struct ieee80211_hw *hw, struct ieee80211_vif *vif, |
| 2389 | struct ieee80211_sta *sta, |
| 2390 | enum ieee80211_sta_state old_state, |
| 2391 | enum ieee80211_sta_state new_state); |
Johannes Berg | 8f727ef | 2012-03-30 08:43:32 +0200 | [diff] [blame] | 2392 | void (*sta_rc_update)(struct ieee80211_hw *hw, |
| 2393 | struct ieee80211_vif *vif, |
| 2394 | struct ieee80211_sta *sta, |
| 2395 | u32 changed); |
Eliad Peller | 8a3a3c8 | 2011-10-02 10:15:52 +0200 | [diff] [blame] | 2396 | int (*conf_tx)(struct ieee80211_hw *hw, |
Johannes Berg | a3304b0 | 2012-03-28 11:04:24 +0200 | [diff] [blame] | 2397 | struct ieee80211_vif *vif, u16 ac, |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 2398 | const struct ieee80211_tx_queue_params *params); |
Eliad Peller | 37a41b4 | 2011-09-21 14:06:11 +0300 | [diff] [blame] | 2399 | u64 (*get_tsf)(struct ieee80211_hw *hw, struct ieee80211_vif *vif); |
| 2400 | void (*set_tsf)(struct ieee80211_hw *hw, struct ieee80211_vif *vif, |
| 2401 | u64 tsf); |
| 2402 | void (*reset_tsf)(struct ieee80211_hw *hw, struct ieee80211_vif *vif); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 2403 | int (*tx_last_beacon)(struct ieee80211_hw *hw); |
Ron Rindjunsky | 1b7d03a | 2007-12-25 17:00:31 +0200 | [diff] [blame] | 2404 | int (*ampdu_action)(struct ieee80211_hw *hw, |
Johannes Berg | c951ad3 | 2009-11-16 12:00:38 +0100 | [diff] [blame] | 2405 | struct ieee80211_vif *vif, |
Ron Rindjunsky | 1b7d03a | 2007-12-25 17:00:31 +0200 | [diff] [blame] | 2406 | enum ieee80211_ampdu_mlme_action action, |
Johannes Berg | 0b01f03 | 2011-01-18 13:51:05 +0100 | [diff] [blame] | 2407 | struct ieee80211_sta *sta, u16 tid, u16 *ssn, |
| 2408 | u8 buf_size); |
Holger Schurig | 1289723 | 2010-04-19 10:23:57 +0200 | [diff] [blame] | 2409 | int (*get_survey)(struct ieee80211_hw *hw, int idx, |
| 2410 | struct survey_info *survey); |
Johannes Berg | 1f87f7d | 2009-06-02 13:01:41 +0200 | [diff] [blame] | 2411 | void (*rfkill_poll)(struct ieee80211_hw *hw); |
Lukáš Turek | 310bc67 | 2009-12-21 22:50:48 +0100 | [diff] [blame] | 2412 | void (*set_coverage_class)(struct ieee80211_hw *hw, u8 coverage_class); |
Johannes Berg | aff89a9 | 2009-07-01 21:26:51 +0200 | [diff] [blame] | 2413 | #ifdef CONFIG_NL80211_TESTMODE |
| 2414 | int (*testmode_cmd)(struct ieee80211_hw *hw, void *data, int len); |
Wey-Yi Guy | 71063f0 | 2011-05-20 09:05:54 -0700 | [diff] [blame] | 2415 | int (*testmode_dump)(struct ieee80211_hw *hw, struct sk_buff *skb, |
| 2416 | struct netlink_callback *cb, |
| 2417 | void *data, int len); |
Johannes Berg | aff89a9 | 2009-07-01 21:26:51 +0200 | [diff] [blame] | 2418 | #endif |
Johannes Berg | a80f7c0 | 2009-12-23 13:15:32 +0100 | [diff] [blame] | 2419 | void (*flush)(struct ieee80211_hw *hw, bool drop); |
Johannes Berg | 5ce6e43 | 2010-05-11 16:20:57 +0200 | [diff] [blame] | 2420 | void (*channel_switch)(struct ieee80211_hw *hw, |
| 2421 | struct ieee80211_channel_switch *ch_switch); |
John W. Linville | 4e6cbfd | 2010-07-29 16:14:13 -0400 | [diff] [blame] | 2422 | int (*napi_poll)(struct ieee80211_hw *hw, int budget); |
Bruno Randolf | 15d9675 | 2010-11-10 12:50:56 +0900 | [diff] [blame] | 2423 | int (*set_antenna)(struct ieee80211_hw *hw, u32 tx_ant, u32 rx_ant); |
| 2424 | int (*get_antenna)(struct ieee80211_hw *hw, u32 *tx_ant, u32 *rx_ant); |
Johannes Berg | 21f8358 | 2010-12-18 17:20:47 +0100 | [diff] [blame] | 2425 | |
| 2426 | int (*remain_on_channel)(struct ieee80211_hw *hw, |
| 2427 | struct ieee80211_channel *chan, |
| 2428 | enum nl80211_channel_type channel_type, |
| 2429 | int duration); |
| 2430 | int (*cancel_remain_on_channel)(struct ieee80211_hw *hw); |
John W. Linville | 38c0915 | 2011-03-07 16:19:18 -0500 | [diff] [blame] | 2431 | int (*set_ringparam)(struct ieee80211_hw *hw, u32 tx, u32 rx); |
| 2432 | void (*get_ringparam)(struct ieee80211_hw *hw, |
| 2433 | u32 *tx, u32 *tx_max, u32 *rx, u32 *rx_max); |
Vivek Natarajan | e8306f9 | 2011-04-06 11:41:10 +0530 | [diff] [blame] | 2434 | bool (*tx_frames_pending)(struct ieee80211_hw *hw); |
Sujith Manoharan | bdbfd6b | 2011-04-27 16:56:51 +0530 | [diff] [blame] | 2435 | int (*set_bitrate_mask)(struct ieee80211_hw *hw, struct ieee80211_vif *vif, |
| 2436 | const struct cfg80211_bitrate_mask *mask); |
Meenakshi Venkataraman | 615f7b9 | 2011-07-08 08:46:22 -0700 | [diff] [blame] | 2437 | void (*rssi_callback)(struct ieee80211_hw *hw, |
| 2438 | enum ieee80211_rssi_event rssi_event); |
Johannes Berg | 4049e09 | 2011-09-29 16:04:32 +0200 | [diff] [blame] | 2439 | |
Johannes Berg | 40b9640 | 2011-09-29 16:04:38 +0200 | [diff] [blame] | 2440 | void (*allow_buffered_frames)(struct ieee80211_hw *hw, |
| 2441 | struct ieee80211_sta *sta, |
| 2442 | u16 tids, int num_frames, |
| 2443 | enum ieee80211_frame_release_type reason, |
| 2444 | bool more_data); |
Johannes Berg | 4049e09 | 2011-09-29 16:04:32 +0200 | [diff] [blame] | 2445 | void (*release_buffered_frames)(struct ieee80211_hw *hw, |
| 2446 | struct ieee80211_sta *sta, |
| 2447 | u16 tids, int num_frames, |
| 2448 | enum ieee80211_frame_release_type reason, |
| 2449 | bool more_data); |
Ben Greear | e352114 | 2012-04-23 12:50:31 -0700 | [diff] [blame] | 2450 | |
| 2451 | int (*get_et_sset_count)(struct ieee80211_hw *hw, |
| 2452 | struct ieee80211_vif *vif, int sset); |
| 2453 | void (*get_et_stats)(struct ieee80211_hw *hw, |
| 2454 | struct ieee80211_vif *vif, |
| 2455 | struct ethtool_stats *stats, u64 *data); |
| 2456 | void (*get_et_strings)(struct ieee80211_hw *hw, |
| 2457 | struct ieee80211_vif *vif, |
| 2458 | u32 sset, u8 *data); |
Victor Goldenshtein | 66572cf | 2012-06-21 10:56:46 +0300 | [diff] [blame] | 2459 | int (*get_rssi)(struct ieee80211_hw *hw, struct ieee80211_vif *vif, |
| 2460 | struct ieee80211_sta *sta, s8 *rssi_dbm); |
Johannes Berg | a1845fc | 2012-06-27 13:18:36 +0200 | [diff] [blame] | 2461 | |
| 2462 | void (*mgd_prepare_tx)(struct ieee80211_hw *hw, |
| 2463 | struct ieee80211_vif *vif); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 2464 | }; |
| 2465 | |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 2466 | /** |
| 2467 | * ieee80211_alloc_hw - Allocate a new hardware device |
| 2468 | * |
| 2469 | * This must be called once for each hardware device. The returned pointer |
| 2470 | * must be used to refer to this device when calling other functions. |
| 2471 | * mac80211 allocates a private data area for the driver pointed to by |
| 2472 | * @priv in &struct ieee80211_hw, the size of this area is given as |
| 2473 | * @priv_data_len. |
| 2474 | * |
| 2475 | * @priv_data_len: length of private data |
| 2476 | * @ops: callbacks for this device |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 2477 | */ |
| 2478 | struct ieee80211_hw *ieee80211_alloc_hw(size_t priv_data_len, |
| 2479 | const struct ieee80211_ops *ops); |
| 2480 | |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 2481 | /** |
| 2482 | * ieee80211_register_hw - Register hardware device |
| 2483 | * |
Johannes Berg | dbbea67 | 2008-02-26 14:34:06 +0100 | [diff] [blame] | 2484 | * You must call this function before any other functions in |
| 2485 | * mac80211. Note that before a hardware can be registered, you |
| 2486 | * need to fill the contained wiphy's information. |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 2487 | * |
| 2488 | * @hw: the device to register as returned by ieee80211_alloc_hw() |
| 2489 | */ |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 2490 | int ieee80211_register_hw(struct ieee80211_hw *hw); |
| 2491 | |
Johannes Berg | e1e5406 | 2010-11-30 08:58:45 +0100 | [diff] [blame] | 2492 | /** |
| 2493 | * struct ieee80211_tpt_blink - throughput blink description |
| 2494 | * @throughput: throughput in Kbit/sec |
| 2495 | * @blink_time: blink time in milliseconds |
| 2496 | * (full cycle, ie. one off + one on period) |
| 2497 | */ |
| 2498 | struct ieee80211_tpt_blink { |
| 2499 | int throughput; |
| 2500 | int blink_time; |
| 2501 | }; |
| 2502 | |
Johannes Berg | 67408c8 | 2010-11-30 08:59:23 +0100 | [diff] [blame] | 2503 | /** |
| 2504 | * enum ieee80211_tpt_led_trigger_flags - throughput trigger flags |
| 2505 | * @IEEE80211_TPT_LEDTRIG_FL_RADIO: enable blinking with radio |
| 2506 | * @IEEE80211_TPT_LEDTRIG_FL_WORK: enable blinking when working |
| 2507 | * @IEEE80211_TPT_LEDTRIG_FL_CONNECTED: enable blinking when at least one |
| 2508 | * interface is connected in some way, including being an AP |
| 2509 | */ |
| 2510 | enum ieee80211_tpt_led_trigger_flags { |
| 2511 | IEEE80211_TPT_LEDTRIG_FL_RADIO = BIT(0), |
| 2512 | IEEE80211_TPT_LEDTRIG_FL_WORK = BIT(1), |
| 2513 | IEEE80211_TPT_LEDTRIG_FL_CONNECTED = BIT(2), |
| 2514 | }; |
| 2515 | |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 2516 | #ifdef CONFIG_MAC80211_LEDS |
| 2517 | extern char *__ieee80211_get_tx_led_name(struct ieee80211_hw *hw); |
| 2518 | extern char *__ieee80211_get_rx_led_name(struct ieee80211_hw *hw); |
Michael Buesch | 47f0c50 | 2007-09-27 15:10:44 +0200 | [diff] [blame] | 2519 | extern char *__ieee80211_get_assoc_led_name(struct ieee80211_hw *hw); |
Ivo van Doorn | cdcb006 | 2008-01-07 19:45:24 +0100 | [diff] [blame] | 2520 | extern char *__ieee80211_get_radio_led_name(struct ieee80211_hw *hw); |
Johannes Berg | e1e5406 | 2010-11-30 08:58:45 +0100 | [diff] [blame] | 2521 | extern char *__ieee80211_create_tpt_led_trigger( |
Johannes Berg | 67408c8 | 2010-11-30 08:59:23 +0100 | [diff] [blame] | 2522 | struct ieee80211_hw *hw, unsigned int flags, |
Johannes Berg | e1e5406 | 2010-11-30 08:58:45 +0100 | [diff] [blame] | 2523 | const struct ieee80211_tpt_blink *blink_table, |
| 2524 | unsigned int blink_table_len); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 2525 | #endif |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 2526 | /** |
| 2527 | * ieee80211_get_tx_led_name - get name of TX LED |
| 2528 | * |
| 2529 | * mac80211 creates a transmit LED trigger for each wireless hardware |
| 2530 | * that can be used to drive LEDs if your driver registers a LED device. |
| 2531 | * This function returns the name (or %NULL if not configured for LEDs) |
| 2532 | * of the trigger so you can automatically link the LED device. |
| 2533 | * |
| 2534 | * @hw: the hardware to get the LED trigger name for |
| 2535 | */ |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 2536 | static inline char *ieee80211_get_tx_led_name(struct ieee80211_hw *hw) |
| 2537 | { |
| 2538 | #ifdef CONFIG_MAC80211_LEDS |
| 2539 | return __ieee80211_get_tx_led_name(hw); |
| 2540 | #else |
| 2541 | return NULL; |
| 2542 | #endif |
| 2543 | } |
| 2544 | |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 2545 | /** |
| 2546 | * ieee80211_get_rx_led_name - get name of RX LED |
| 2547 | * |
| 2548 | * mac80211 creates a receive LED trigger for each wireless hardware |
| 2549 | * that can be used to drive LEDs if your driver registers a LED device. |
| 2550 | * This function returns the name (or %NULL if not configured for LEDs) |
| 2551 | * of the trigger so you can automatically link the LED device. |
| 2552 | * |
| 2553 | * @hw: the hardware to get the LED trigger name for |
| 2554 | */ |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 2555 | static inline char *ieee80211_get_rx_led_name(struct ieee80211_hw *hw) |
| 2556 | { |
| 2557 | #ifdef CONFIG_MAC80211_LEDS |
| 2558 | return __ieee80211_get_rx_led_name(hw); |
| 2559 | #else |
| 2560 | return NULL; |
| 2561 | #endif |
| 2562 | } |
| 2563 | |
Ivo van Doorn | cdcb006 | 2008-01-07 19:45:24 +0100 | [diff] [blame] | 2564 | /** |
| 2565 | * ieee80211_get_assoc_led_name - get name of association LED |
| 2566 | * |
| 2567 | * mac80211 creates a association LED trigger for each wireless hardware |
| 2568 | * that can be used to drive LEDs if your driver registers a LED device. |
| 2569 | * This function returns the name (or %NULL if not configured for LEDs) |
| 2570 | * of the trigger so you can automatically link the LED device. |
| 2571 | * |
| 2572 | * @hw: the hardware to get the LED trigger name for |
| 2573 | */ |
Michael Buesch | 47f0c50 | 2007-09-27 15:10:44 +0200 | [diff] [blame] | 2574 | static inline char *ieee80211_get_assoc_led_name(struct ieee80211_hw *hw) |
| 2575 | { |
| 2576 | #ifdef CONFIG_MAC80211_LEDS |
| 2577 | return __ieee80211_get_assoc_led_name(hw); |
| 2578 | #else |
| 2579 | return NULL; |
| 2580 | #endif |
| 2581 | } |
| 2582 | |
Ivo van Doorn | cdcb006 | 2008-01-07 19:45:24 +0100 | [diff] [blame] | 2583 | /** |
| 2584 | * ieee80211_get_radio_led_name - get name of radio LED |
| 2585 | * |
| 2586 | * mac80211 creates a radio change LED trigger for each wireless hardware |
| 2587 | * that can be used to drive LEDs if your driver registers a LED device. |
| 2588 | * This function returns the name (or %NULL if not configured for LEDs) |
| 2589 | * of the trigger so you can automatically link the LED device. |
| 2590 | * |
| 2591 | * @hw: the hardware to get the LED trigger name for |
| 2592 | */ |
| 2593 | static inline char *ieee80211_get_radio_led_name(struct ieee80211_hw *hw) |
| 2594 | { |
| 2595 | #ifdef CONFIG_MAC80211_LEDS |
| 2596 | return __ieee80211_get_radio_led_name(hw); |
| 2597 | #else |
| 2598 | return NULL; |
| 2599 | #endif |
| 2600 | } |
Michael Buesch | 47f0c50 | 2007-09-27 15:10:44 +0200 | [diff] [blame] | 2601 | |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 2602 | /** |
Johannes Berg | e1e5406 | 2010-11-30 08:58:45 +0100 | [diff] [blame] | 2603 | * ieee80211_create_tpt_led_trigger - create throughput LED trigger |
| 2604 | * @hw: the hardware to create the trigger for |
Johannes Berg | 67408c8 | 2010-11-30 08:59:23 +0100 | [diff] [blame] | 2605 | * @flags: trigger flags, see &enum ieee80211_tpt_led_trigger_flags |
Johannes Berg | e1e5406 | 2010-11-30 08:58:45 +0100 | [diff] [blame] | 2606 | * @blink_table: the blink table -- needs to be ordered by throughput |
| 2607 | * @blink_table_len: size of the blink table |
| 2608 | * |
| 2609 | * This function returns %NULL (in case of error, or if no LED |
| 2610 | * triggers are configured) or the name of the new trigger. |
| 2611 | * This function must be called before ieee80211_register_hw(). |
| 2612 | */ |
| 2613 | static inline char * |
Johannes Berg | 67408c8 | 2010-11-30 08:59:23 +0100 | [diff] [blame] | 2614 | ieee80211_create_tpt_led_trigger(struct ieee80211_hw *hw, unsigned int flags, |
Johannes Berg | e1e5406 | 2010-11-30 08:58:45 +0100 | [diff] [blame] | 2615 | const struct ieee80211_tpt_blink *blink_table, |
| 2616 | unsigned int blink_table_len) |
| 2617 | { |
| 2618 | #ifdef CONFIG_MAC80211_LEDS |
Johannes Berg | 67408c8 | 2010-11-30 08:59:23 +0100 | [diff] [blame] | 2619 | return __ieee80211_create_tpt_led_trigger(hw, flags, blink_table, |
Johannes Berg | e1e5406 | 2010-11-30 08:58:45 +0100 | [diff] [blame] | 2620 | blink_table_len); |
| 2621 | #else |
| 2622 | return NULL; |
| 2623 | #endif |
| 2624 | } |
| 2625 | |
| 2626 | /** |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 2627 | * ieee80211_unregister_hw - Unregister a hardware device |
| 2628 | * |
| 2629 | * This function instructs mac80211 to free allocated resources |
| 2630 | * and unregister netdevices from the networking subsystem. |
| 2631 | * |
| 2632 | * @hw: the hardware to unregister |
| 2633 | */ |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 2634 | void ieee80211_unregister_hw(struct ieee80211_hw *hw); |
| 2635 | |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 2636 | /** |
| 2637 | * ieee80211_free_hw - free hardware descriptor |
| 2638 | * |
| 2639 | * This function frees everything that was allocated, including the |
| 2640 | * private data for the driver. You must call ieee80211_unregister_hw() |
Randy Dunlap | 6ef307b | 2008-07-03 13:52:18 -0700 | [diff] [blame] | 2641 | * before calling this function. |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 2642 | * |
| 2643 | * @hw: the hardware to free |
| 2644 | */ |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 2645 | void ieee80211_free_hw(struct ieee80211_hw *hw); |
| 2646 | |
Johannes Berg | f2753dd | 2009-04-14 10:09:24 +0200 | [diff] [blame] | 2647 | /** |
| 2648 | * ieee80211_restart_hw - restart hardware completely |
| 2649 | * |
| 2650 | * Call this function when the hardware was restarted for some reason |
| 2651 | * (hardware error, ...) and the driver is unable to restore its state |
| 2652 | * by itself. mac80211 assumes that at this point the driver/hardware |
| 2653 | * is completely uninitialised and stopped, it starts the process by |
| 2654 | * calling the ->start() operation. The driver will need to reset all |
| 2655 | * internal state that it has prior to calling this function. |
| 2656 | * |
| 2657 | * @hw: the hardware to restart |
| 2658 | */ |
| 2659 | void ieee80211_restart_hw(struct ieee80211_hw *hw); |
| 2660 | |
John W. Linville | 4e6cbfd | 2010-07-29 16:14:13 -0400 | [diff] [blame] | 2661 | /** ieee80211_napi_schedule - schedule NAPI poll |
| 2662 | * |
| 2663 | * Use this function to schedule NAPI polling on a device. |
| 2664 | * |
| 2665 | * @hw: the hardware to start polling |
| 2666 | */ |
| 2667 | void ieee80211_napi_schedule(struct ieee80211_hw *hw); |
| 2668 | |
| 2669 | /** ieee80211_napi_complete - complete NAPI polling |
| 2670 | * |
| 2671 | * Use this function to finish NAPI polling on a device. |
| 2672 | * |
| 2673 | * @hw: the hardware to stop polling |
| 2674 | */ |
| 2675 | void ieee80211_napi_complete(struct ieee80211_hw *hw); |
| 2676 | |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 2677 | /** |
| 2678 | * ieee80211_rx - receive frame |
| 2679 | * |
| 2680 | * Use this function to hand received frames to mac80211. The receive |
Zhu Yi | e3cf8b3 | 2010-03-29 17:35:07 +0800 | [diff] [blame] | 2681 | * buffer in @skb must start with an IEEE 802.11 header. In case of a |
| 2682 | * paged @skb is used, the driver is recommended to put the ieee80211 |
| 2683 | * header of the frame on the linear part of the @skb to avoid memory |
| 2684 | * allocation and/or memcpy by the stack. |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 2685 | * |
Johannes Berg | 2485f71 | 2008-02-25 16:27:41 +0100 | [diff] [blame] | 2686 | * This function may not be called in IRQ context. Calls to this function |
Kalle Valo | e36e49f | 2009-10-13 20:33:13 +0300 | [diff] [blame] | 2687 | * for a single hardware must be synchronized against each other. Calls to |
| 2688 | * this function, ieee80211_rx_ni() and ieee80211_rx_irqsafe() may not be |
| 2689 | * mixed for a single hardware. |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 2690 | * |
Kalle Valo | e36e49f | 2009-10-13 20:33:13 +0300 | [diff] [blame] | 2691 | * In process context use instead ieee80211_rx_ni(). |
Johannes Berg | d20ef63 | 2009-10-11 15:10:40 +0200 | [diff] [blame] | 2692 | * |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 2693 | * @hw: the hardware this frame came in on |
| 2694 | * @skb: the buffer to receive, owned by mac80211 after this call |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 2695 | */ |
John W. Linville | 103bf9f | 2009-08-20 16:34:15 -0400 | [diff] [blame] | 2696 | void ieee80211_rx(struct ieee80211_hw *hw, struct sk_buff *skb); |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 2697 | |
| 2698 | /** |
| 2699 | * ieee80211_rx_irqsafe - receive frame |
| 2700 | * |
| 2701 | * Like ieee80211_rx() but can be called in IRQ context |
Johannes Berg | 2485f71 | 2008-02-25 16:27:41 +0100 | [diff] [blame] | 2702 | * (internally defers to a tasklet.) |
| 2703 | * |
Kalle Valo | e36e49f | 2009-10-13 20:33:13 +0300 | [diff] [blame] | 2704 | * Calls to this function, ieee80211_rx() or ieee80211_rx_ni() may not |
| 2705 | * be mixed for a single hardware. |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 2706 | * |
| 2707 | * @hw: the hardware this frame came in on |
| 2708 | * @skb: the buffer to receive, owned by mac80211 after this call |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 2709 | */ |
Johannes Berg | f1d58c2 | 2009-06-17 13:13:00 +0200 | [diff] [blame] | 2710 | void ieee80211_rx_irqsafe(struct ieee80211_hw *hw, struct sk_buff *skb); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 2711 | |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 2712 | /** |
Kalle Valo | e36e49f | 2009-10-13 20:33:13 +0300 | [diff] [blame] | 2713 | * ieee80211_rx_ni - receive frame (in process context) |
| 2714 | * |
| 2715 | * Like ieee80211_rx() but can be called in process context |
| 2716 | * (internally disables bottom halves). |
| 2717 | * |
| 2718 | * Calls to this function, ieee80211_rx() and ieee80211_rx_irqsafe() may |
| 2719 | * not be mixed for a single hardware. |
| 2720 | * |
| 2721 | * @hw: the hardware this frame came in on |
| 2722 | * @skb: the buffer to receive, owned by mac80211 after this call |
| 2723 | */ |
| 2724 | static inline void ieee80211_rx_ni(struct ieee80211_hw *hw, |
| 2725 | struct sk_buff *skb) |
| 2726 | { |
| 2727 | local_bh_disable(); |
| 2728 | ieee80211_rx(hw, skb); |
| 2729 | local_bh_enable(); |
| 2730 | } |
| 2731 | |
Arik Nemtsov | d057e5a | 2011-01-31 22:29:13 +0200 | [diff] [blame] | 2732 | /** |
| 2733 | * ieee80211_sta_ps_transition - PS transition for connected sta |
| 2734 | * |
| 2735 | * When operating in AP mode with the %IEEE80211_HW_AP_LINK_PS |
| 2736 | * flag set, use this function to inform mac80211 about a connected station |
| 2737 | * entering/leaving PS mode. |
| 2738 | * |
| 2739 | * This function may not be called in IRQ context or with softirqs enabled. |
| 2740 | * |
| 2741 | * Calls to this function for a single hardware must be synchronized against |
| 2742 | * each other. |
| 2743 | * |
| 2744 | * The function returns -EINVAL when the requested PS mode is already set. |
| 2745 | * |
| 2746 | * @sta: currently connected sta |
| 2747 | * @start: start or stop PS |
| 2748 | */ |
| 2749 | int ieee80211_sta_ps_transition(struct ieee80211_sta *sta, bool start); |
| 2750 | |
| 2751 | /** |
| 2752 | * ieee80211_sta_ps_transition_ni - PS transition for connected sta |
| 2753 | * (in process context) |
| 2754 | * |
| 2755 | * Like ieee80211_sta_ps_transition() but can be called in process context |
| 2756 | * (internally disables bottom halves). Concurrent call restriction still |
| 2757 | * applies. |
| 2758 | * |
| 2759 | * @sta: currently connected sta |
| 2760 | * @start: start or stop PS |
| 2761 | */ |
| 2762 | static inline int ieee80211_sta_ps_transition_ni(struct ieee80211_sta *sta, |
| 2763 | bool start) |
| 2764 | { |
| 2765 | int ret; |
| 2766 | |
| 2767 | local_bh_disable(); |
| 2768 | ret = ieee80211_sta_ps_transition(sta, start); |
| 2769 | local_bh_enable(); |
| 2770 | |
| 2771 | return ret; |
| 2772 | } |
| 2773 | |
Gertjan van Wingerde | d24deb2 | 2009-12-04 23:46:54 +0100 | [diff] [blame] | 2774 | /* |
| 2775 | * The TX headroom reserved by mac80211 for its own tx_status functions. |
| 2776 | * This is enough for the radiotap header. |
| 2777 | */ |
Helmut Schaa | 7f2a5e2 | 2011-10-11 18:08:55 +0200 | [diff] [blame] | 2778 | #define IEEE80211_TX_STATUS_HEADROOM 14 |
Gertjan van Wingerde | d24deb2 | 2009-12-04 23:46:54 +0100 | [diff] [blame] | 2779 | |
Kalle Valo | e36e49f | 2009-10-13 20:33:13 +0300 | [diff] [blame] | 2780 | /** |
Johannes Berg | 042ec45 | 2011-09-29 16:04:26 +0200 | [diff] [blame] | 2781 | * ieee80211_sta_set_buffered - inform mac80211 about driver-buffered frames |
Randy Dunlap | bdfbe80 | 2011-05-22 17:22:45 -0700 | [diff] [blame] | 2782 | * @sta: &struct ieee80211_sta pointer for the sleeping station |
Johannes Berg | 042ec45 | 2011-09-29 16:04:26 +0200 | [diff] [blame] | 2783 | * @tid: the TID that has buffered frames |
| 2784 | * @buffered: indicates whether or not frames are buffered for this TID |
Felix Fietkau | dcf55fb | 2011-04-17 17:45:00 +0200 | [diff] [blame] | 2785 | * |
| 2786 | * If a driver buffers frames for a powersave station instead of passing |
Johannes Berg | 042ec45 | 2011-09-29 16:04:26 +0200 | [diff] [blame] | 2787 | * them back to mac80211 for retransmission, the station may still need |
| 2788 | * to be told that there are buffered frames via the TIM bit. |
Felix Fietkau | dcf55fb | 2011-04-17 17:45:00 +0200 | [diff] [blame] | 2789 | * |
Johannes Berg | 042ec45 | 2011-09-29 16:04:26 +0200 | [diff] [blame] | 2790 | * This function informs mac80211 whether or not there are frames that are |
| 2791 | * buffered in the driver for a given TID; mac80211 can then use this data |
| 2792 | * to set the TIM bit (NOTE: This may call back into the driver's set_tim |
| 2793 | * call! Beware of the locking!) |
| 2794 | * |
| 2795 | * If all frames are released to the station (due to PS-poll or uAPSD) |
| 2796 | * then the driver needs to inform mac80211 that there no longer are |
| 2797 | * frames buffered. However, when the station wakes up mac80211 assumes |
| 2798 | * that all buffered frames will be transmitted and clears this data, |
| 2799 | * drivers need to make sure they inform mac80211 about all buffered |
| 2800 | * frames on the sleep transition (sta_notify() with %STA_NOTIFY_SLEEP). |
| 2801 | * |
| 2802 | * Note that technically mac80211 only needs to know this per AC, not per |
| 2803 | * TID, but since driver buffering will inevitably happen per TID (since |
| 2804 | * it is related to aggregation) it is easier to make mac80211 map the |
| 2805 | * TID to the AC as required instead of keeping track in all drivers that |
| 2806 | * use this API. |
Felix Fietkau | dcf55fb | 2011-04-17 17:45:00 +0200 | [diff] [blame] | 2807 | */ |
Johannes Berg | 042ec45 | 2011-09-29 16:04:26 +0200 | [diff] [blame] | 2808 | void ieee80211_sta_set_buffered(struct ieee80211_sta *sta, |
| 2809 | u8 tid, bool buffered); |
Felix Fietkau | dcf55fb | 2011-04-17 17:45:00 +0200 | [diff] [blame] | 2810 | |
| 2811 | /** |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 2812 | * ieee80211_tx_status - transmit status callback |
| 2813 | * |
| 2814 | * Call this function for all transmitted frames after they have been |
| 2815 | * transmitted. It is permissible to not call this function for |
| 2816 | * multicast frames but this can affect statistics. |
| 2817 | * |
Johannes Berg | 2485f71 | 2008-02-25 16:27:41 +0100 | [diff] [blame] | 2818 | * This function may not be called in IRQ context. Calls to this function |
| 2819 | * for a single hardware must be synchronized against each other. Calls |
Johannes Stezenbach | 20ed316 | 2010-11-30 16:49:23 +0100 | [diff] [blame] | 2820 | * to this function, ieee80211_tx_status_ni() and ieee80211_tx_status_irqsafe() |
| 2821 | * may not be mixed for a single hardware. |
Johannes Berg | 2485f71 | 2008-02-25 16:27:41 +0100 | [diff] [blame] | 2822 | * |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 2823 | * @hw: the hardware the frame was transmitted by |
| 2824 | * @skb: the frame that was transmitted, owned by mac80211 after this call |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 2825 | */ |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 2826 | void ieee80211_tx_status(struct ieee80211_hw *hw, |
Johannes Berg | e039fa4 | 2008-05-15 12:55:29 +0200 | [diff] [blame] | 2827 | struct sk_buff *skb); |
Johannes Berg | 2485f71 | 2008-02-25 16:27:41 +0100 | [diff] [blame] | 2828 | |
| 2829 | /** |
Johannes Stezenbach | 20ed316 | 2010-11-30 16:49:23 +0100 | [diff] [blame] | 2830 | * ieee80211_tx_status_ni - transmit status callback (in process context) |
| 2831 | * |
| 2832 | * Like ieee80211_tx_status() but can be called in process context. |
| 2833 | * |
| 2834 | * Calls to this function, ieee80211_tx_status() and |
| 2835 | * ieee80211_tx_status_irqsafe() may not be mixed |
| 2836 | * for a single hardware. |
| 2837 | * |
| 2838 | * @hw: the hardware the frame was transmitted by |
| 2839 | * @skb: the frame that was transmitted, owned by mac80211 after this call |
| 2840 | */ |
| 2841 | static inline void ieee80211_tx_status_ni(struct ieee80211_hw *hw, |
| 2842 | struct sk_buff *skb) |
| 2843 | { |
| 2844 | local_bh_disable(); |
| 2845 | ieee80211_tx_status(hw, skb); |
| 2846 | local_bh_enable(); |
| 2847 | } |
| 2848 | |
| 2849 | /** |
Randy Dunlap | 6ef307b | 2008-07-03 13:52:18 -0700 | [diff] [blame] | 2850 | * ieee80211_tx_status_irqsafe - IRQ-safe transmit status callback |
Johannes Berg | 2485f71 | 2008-02-25 16:27:41 +0100 | [diff] [blame] | 2851 | * |
| 2852 | * Like ieee80211_tx_status() but can be called in IRQ context |
| 2853 | * (internally defers to a tasklet.) |
| 2854 | * |
Johannes Stezenbach | 20ed316 | 2010-11-30 16:49:23 +0100 | [diff] [blame] | 2855 | * Calls to this function, ieee80211_tx_status() and |
| 2856 | * ieee80211_tx_status_ni() may not be mixed for a single hardware. |
Johannes Berg | 2485f71 | 2008-02-25 16:27:41 +0100 | [diff] [blame] | 2857 | * |
| 2858 | * @hw: the hardware the frame was transmitted by |
| 2859 | * @skb: the frame that was transmitted, owned by mac80211 after this call |
Johannes Berg | 2485f71 | 2008-02-25 16:27:41 +0100 | [diff] [blame] | 2860 | */ |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 2861 | void ieee80211_tx_status_irqsafe(struct ieee80211_hw *hw, |
Johannes Berg | e039fa4 | 2008-05-15 12:55:29 +0200 | [diff] [blame] | 2862 | struct sk_buff *skb); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 2863 | |
| 2864 | /** |
Arik Nemtsov | 8178d38 | 2011-04-18 14:22:28 +0300 | [diff] [blame] | 2865 | * ieee80211_report_low_ack - report non-responding station |
| 2866 | * |
| 2867 | * When operating in AP-mode, call this function to report a non-responding |
| 2868 | * connected STA. |
| 2869 | * |
| 2870 | * @sta: the non-responding connected sta |
| 2871 | * @num_packets: number of packets sent to @sta without a response |
| 2872 | */ |
| 2873 | void ieee80211_report_low_ack(struct ieee80211_sta *sta, u32 num_packets); |
| 2874 | |
| 2875 | /** |
Johannes Berg | eddcbb9 | 2009-10-29 08:30:35 +0100 | [diff] [blame] | 2876 | * ieee80211_beacon_get_tim - beacon generation function |
| 2877 | * @hw: pointer obtained from ieee80211_alloc_hw(). |
Johannes Berg | 1ed32e4 | 2009-12-23 13:15:45 +0100 | [diff] [blame] | 2878 | * @vif: &struct ieee80211_vif pointer from the add_interface callback. |
Johannes Berg | eddcbb9 | 2009-10-29 08:30:35 +0100 | [diff] [blame] | 2879 | * @tim_offset: pointer to variable that will receive the TIM IE offset. |
| 2880 | * Set to 0 if invalid (in non-AP modes). |
| 2881 | * @tim_length: pointer to variable that will receive the TIM IE length, |
| 2882 | * (including the ID and length bytes!). |
| 2883 | * Set to 0 if invalid (in non-AP modes). |
| 2884 | * |
| 2885 | * If the driver implements beaconing modes, it must use this function to |
| 2886 | * obtain the beacon frame/template. |
| 2887 | * |
| 2888 | * If the beacon frames are generated by the host system (i.e., not in |
| 2889 | * hardware/firmware), the driver uses this function to get each beacon |
| 2890 | * frame from mac80211 -- it is responsible for calling this function |
| 2891 | * before the beacon is needed (e.g. based on hardware interrupt). |
| 2892 | * |
| 2893 | * If the beacon frames are generated by the device, then the driver |
| 2894 | * must use the returned beacon as the template and change the TIM IE |
| 2895 | * according to the current DTIM parameters/TIM bitmap. |
| 2896 | * |
| 2897 | * The driver is responsible for freeing the returned skb. |
| 2898 | */ |
| 2899 | struct sk_buff *ieee80211_beacon_get_tim(struct ieee80211_hw *hw, |
| 2900 | struct ieee80211_vif *vif, |
| 2901 | u16 *tim_offset, u16 *tim_length); |
| 2902 | |
| 2903 | /** |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 2904 | * ieee80211_beacon_get - beacon generation function |
| 2905 | * @hw: pointer obtained from ieee80211_alloc_hw(). |
Johannes Berg | 1ed32e4 | 2009-12-23 13:15:45 +0100 | [diff] [blame] | 2906 | * @vif: &struct ieee80211_vif pointer from the add_interface callback. |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 2907 | * |
Johannes Berg | eddcbb9 | 2009-10-29 08:30:35 +0100 | [diff] [blame] | 2908 | * See ieee80211_beacon_get_tim(). |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 2909 | */ |
Johannes Berg | eddcbb9 | 2009-10-29 08:30:35 +0100 | [diff] [blame] | 2910 | static inline struct sk_buff *ieee80211_beacon_get(struct ieee80211_hw *hw, |
| 2911 | struct ieee80211_vif *vif) |
| 2912 | { |
| 2913 | return ieee80211_beacon_get_tim(hw, vif, NULL, NULL); |
| 2914 | } |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 2915 | |
| 2916 | /** |
Arik Nemtsov | 0294582 | 2011-11-10 11:28:57 +0200 | [diff] [blame] | 2917 | * ieee80211_proberesp_get - retrieve a Probe Response template |
| 2918 | * @hw: pointer obtained from ieee80211_alloc_hw(). |
| 2919 | * @vif: &struct ieee80211_vif pointer from the add_interface callback. |
| 2920 | * |
| 2921 | * Creates a Probe Response template which can, for example, be uploaded to |
| 2922 | * hardware. The destination address should be set by the caller. |
| 2923 | * |
| 2924 | * Can only be called in AP mode. |
| 2925 | */ |
| 2926 | struct sk_buff *ieee80211_proberesp_get(struct ieee80211_hw *hw, |
| 2927 | struct ieee80211_vif *vif); |
| 2928 | |
| 2929 | /** |
Kalle Valo | 7044cc5 | 2010-01-05 20:16:19 +0200 | [diff] [blame] | 2930 | * ieee80211_pspoll_get - retrieve a PS Poll template |
| 2931 | * @hw: pointer obtained from ieee80211_alloc_hw(). |
| 2932 | * @vif: &struct ieee80211_vif pointer from the add_interface callback. |
| 2933 | * |
| 2934 | * Creates a PS Poll a template which can, for example, uploaded to |
| 2935 | * hardware. The template must be updated after association so that correct |
| 2936 | * AID, BSSID and MAC address is used. |
| 2937 | * |
| 2938 | * Note: Caller (or hardware) is responsible for setting the |
| 2939 | * &IEEE80211_FCTL_PM bit. |
| 2940 | */ |
| 2941 | struct sk_buff *ieee80211_pspoll_get(struct ieee80211_hw *hw, |
| 2942 | struct ieee80211_vif *vif); |
| 2943 | |
| 2944 | /** |
| 2945 | * ieee80211_nullfunc_get - retrieve a nullfunc template |
| 2946 | * @hw: pointer obtained from ieee80211_alloc_hw(). |
| 2947 | * @vif: &struct ieee80211_vif pointer from the add_interface callback. |
| 2948 | * |
| 2949 | * Creates a Nullfunc template which can, for example, uploaded to |
| 2950 | * hardware. The template must be updated after association so that correct |
| 2951 | * BSSID and address is used. |
| 2952 | * |
| 2953 | * Note: Caller (or hardware) is responsible for setting the |
| 2954 | * &IEEE80211_FCTL_PM bit as well as Duration and Sequence Control fields. |
| 2955 | */ |
| 2956 | struct sk_buff *ieee80211_nullfunc_get(struct ieee80211_hw *hw, |
| 2957 | struct ieee80211_vif *vif); |
| 2958 | |
| 2959 | /** |
Kalle Valo | 05e54ea | 2010-01-05 20:16:38 +0200 | [diff] [blame] | 2960 | * ieee80211_probereq_get - retrieve a Probe Request template |
| 2961 | * @hw: pointer obtained from ieee80211_alloc_hw(). |
| 2962 | * @vif: &struct ieee80211_vif pointer from the add_interface callback. |
| 2963 | * @ssid: SSID buffer |
| 2964 | * @ssid_len: length of SSID |
| 2965 | * @ie: buffer containing all IEs except SSID for the template |
| 2966 | * @ie_len: length of the IE buffer |
| 2967 | * |
| 2968 | * Creates a Probe Request template which can, for example, be uploaded to |
| 2969 | * hardware. |
| 2970 | */ |
| 2971 | struct sk_buff *ieee80211_probereq_get(struct ieee80211_hw *hw, |
| 2972 | struct ieee80211_vif *vif, |
| 2973 | const u8 *ssid, size_t ssid_len, |
| 2974 | const u8 *ie, size_t ie_len); |
| 2975 | |
| 2976 | /** |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 2977 | * ieee80211_rts_get - RTS frame generation function |
| 2978 | * @hw: pointer obtained from ieee80211_alloc_hw(). |
Johannes Berg | 1ed32e4 | 2009-12-23 13:15:45 +0100 | [diff] [blame] | 2979 | * @vif: &struct ieee80211_vif pointer from the add_interface callback. |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 2980 | * @frame: pointer to the frame that is going to be protected by the RTS. |
| 2981 | * @frame_len: the frame length (in octets). |
Johannes Berg | e039fa4 | 2008-05-15 12:55:29 +0200 | [diff] [blame] | 2982 | * @frame_txctl: &struct ieee80211_tx_info of the frame. |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 2983 | * @rts: The buffer where to store the RTS frame. |
| 2984 | * |
| 2985 | * If the RTS frames are generated by the host system (i.e., not in |
| 2986 | * hardware/firmware), the low-level driver uses this function to receive |
| 2987 | * the next RTS frame from the 802.11 code. The low-level is responsible |
| 2988 | * for calling this function before and RTS frame is needed. |
| 2989 | */ |
Johannes Berg | 32bfd35 | 2007-12-19 01:31:26 +0100 | [diff] [blame] | 2990 | void ieee80211_rts_get(struct ieee80211_hw *hw, struct ieee80211_vif *vif, |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 2991 | const void *frame, size_t frame_len, |
Johannes Berg | e039fa4 | 2008-05-15 12:55:29 +0200 | [diff] [blame] | 2992 | const struct ieee80211_tx_info *frame_txctl, |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 2993 | struct ieee80211_rts *rts); |
| 2994 | |
| 2995 | /** |
| 2996 | * ieee80211_rts_duration - Get the duration field for an RTS frame |
| 2997 | * @hw: pointer obtained from ieee80211_alloc_hw(). |
Johannes Berg | 1ed32e4 | 2009-12-23 13:15:45 +0100 | [diff] [blame] | 2998 | * @vif: &struct ieee80211_vif pointer from the add_interface callback. |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 2999 | * @frame_len: the length of the frame that is going to be protected by the RTS. |
Johannes Berg | e039fa4 | 2008-05-15 12:55:29 +0200 | [diff] [blame] | 3000 | * @frame_txctl: &struct ieee80211_tx_info of the frame. |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 3001 | * |
| 3002 | * If the RTS is generated in firmware, but the host system must provide |
| 3003 | * the duration field, the low-level driver uses this function to receive |
| 3004 | * the duration field value in little-endian byteorder. |
| 3005 | */ |
Johannes Berg | 32bfd35 | 2007-12-19 01:31:26 +0100 | [diff] [blame] | 3006 | __le16 ieee80211_rts_duration(struct ieee80211_hw *hw, |
| 3007 | struct ieee80211_vif *vif, size_t frame_len, |
Johannes Berg | e039fa4 | 2008-05-15 12:55:29 +0200 | [diff] [blame] | 3008 | const struct ieee80211_tx_info *frame_txctl); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 3009 | |
| 3010 | /** |
| 3011 | * ieee80211_ctstoself_get - CTS-to-self frame generation function |
| 3012 | * @hw: pointer obtained from ieee80211_alloc_hw(). |
Johannes Berg | 1ed32e4 | 2009-12-23 13:15:45 +0100 | [diff] [blame] | 3013 | * @vif: &struct ieee80211_vif pointer from the add_interface callback. |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 3014 | * @frame: pointer to the frame that is going to be protected by the CTS-to-self. |
| 3015 | * @frame_len: the frame length (in octets). |
Johannes Berg | e039fa4 | 2008-05-15 12:55:29 +0200 | [diff] [blame] | 3016 | * @frame_txctl: &struct ieee80211_tx_info of the frame. |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 3017 | * @cts: The buffer where to store the CTS-to-self frame. |
| 3018 | * |
| 3019 | * If the CTS-to-self frames are generated by the host system (i.e., not in |
| 3020 | * hardware/firmware), the low-level driver uses this function to receive |
| 3021 | * the next CTS-to-self frame from the 802.11 code. The low-level is responsible |
| 3022 | * for calling this function before and CTS-to-self frame is needed. |
| 3023 | */ |
Johannes Berg | 32bfd35 | 2007-12-19 01:31:26 +0100 | [diff] [blame] | 3024 | void ieee80211_ctstoself_get(struct ieee80211_hw *hw, |
| 3025 | struct ieee80211_vif *vif, |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 3026 | const void *frame, size_t frame_len, |
Johannes Berg | e039fa4 | 2008-05-15 12:55:29 +0200 | [diff] [blame] | 3027 | const struct ieee80211_tx_info *frame_txctl, |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 3028 | struct ieee80211_cts *cts); |
| 3029 | |
| 3030 | /** |
| 3031 | * ieee80211_ctstoself_duration - Get the duration field for a CTS-to-self frame |
| 3032 | * @hw: pointer obtained from ieee80211_alloc_hw(). |
Johannes Berg | 1ed32e4 | 2009-12-23 13:15:45 +0100 | [diff] [blame] | 3033 | * @vif: &struct ieee80211_vif pointer from the add_interface callback. |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 3034 | * @frame_len: the length of the frame that is going to be protected by the CTS-to-self. |
Johannes Berg | e039fa4 | 2008-05-15 12:55:29 +0200 | [diff] [blame] | 3035 | * @frame_txctl: &struct ieee80211_tx_info of the frame. |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 3036 | * |
| 3037 | * If the CTS-to-self is generated in firmware, but the host system must provide |
| 3038 | * the duration field, the low-level driver uses this function to receive |
| 3039 | * the duration field value in little-endian byteorder. |
| 3040 | */ |
Johannes Berg | 32bfd35 | 2007-12-19 01:31:26 +0100 | [diff] [blame] | 3041 | __le16 ieee80211_ctstoself_duration(struct ieee80211_hw *hw, |
| 3042 | struct ieee80211_vif *vif, |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 3043 | size_t frame_len, |
Johannes Berg | e039fa4 | 2008-05-15 12:55:29 +0200 | [diff] [blame] | 3044 | const struct ieee80211_tx_info *frame_txctl); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 3045 | |
| 3046 | /** |
| 3047 | * ieee80211_generic_frame_duration - Calculate the duration field for a frame |
| 3048 | * @hw: pointer obtained from ieee80211_alloc_hw(). |
Johannes Berg | 1ed32e4 | 2009-12-23 13:15:45 +0100 | [diff] [blame] | 3049 | * @vif: &struct ieee80211_vif pointer from the add_interface callback. |
Johannes Berg | d13e141 | 2012-06-09 10:31:09 +0200 | [diff] [blame] | 3050 | * @band: the band to calculate the frame duration on |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 3051 | * @frame_len: the length of the frame. |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 3052 | * @rate: the rate at which the frame is going to be transmitted. |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 3053 | * |
| 3054 | * Calculate the duration field of some generic frame, given its |
| 3055 | * length and transmission rate (in 100kbps). |
| 3056 | */ |
Johannes Berg | 32bfd35 | 2007-12-19 01:31:26 +0100 | [diff] [blame] | 3057 | __le16 ieee80211_generic_frame_duration(struct ieee80211_hw *hw, |
| 3058 | struct ieee80211_vif *vif, |
Michal Kazior | 4ee73f3 | 2012-04-11 08:47:56 +0200 | [diff] [blame] | 3059 | enum ieee80211_band band, |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 3060 | size_t frame_len, |
Johannes Berg | 8318d78 | 2008-01-24 19:38:38 +0100 | [diff] [blame] | 3061 | struct ieee80211_rate *rate); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 3062 | |
| 3063 | /** |
| 3064 | * ieee80211_get_buffered_bc - accessing buffered broadcast and multicast frames |
| 3065 | * @hw: pointer as obtained from ieee80211_alloc_hw(). |
Johannes Berg | 1ed32e4 | 2009-12-23 13:15:45 +0100 | [diff] [blame] | 3066 | * @vif: &struct ieee80211_vif pointer from the add_interface callback. |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 3067 | * |
| 3068 | * Function for accessing buffered broadcast and multicast frames. If |
| 3069 | * hardware/firmware does not implement buffering of broadcast/multicast |
| 3070 | * frames when power saving is used, 802.11 code buffers them in the host |
| 3071 | * memory. The low-level driver uses this function to fetch next buffered |
| 3072 | * frame. In most cases, this is used when generating beacon frame. This |
| 3073 | * function returns a pointer to the next buffered skb or NULL if no more |
| 3074 | * buffered frames are available. |
| 3075 | * |
| 3076 | * Note: buffered frames are returned only after DTIM beacon frame was |
| 3077 | * generated with ieee80211_beacon_get() and the low-level driver must thus |
| 3078 | * call ieee80211_beacon_get() first. ieee80211_get_buffered_bc() returns |
| 3079 | * NULL if the previous generated beacon was not DTIM, so the low-level driver |
| 3080 | * does not need to check for DTIM beacons separately and should be able to |
| 3081 | * use common code for all beacons. |
| 3082 | */ |
| 3083 | struct sk_buff * |
Johannes Berg | e039fa4 | 2008-05-15 12:55:29 +0200 | [diff] [blame] | 3084 | ieee80211_get_buffered_bc(struct ieee80211_hw *hw, struct ieee80211_vif *vif); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 3085 | |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 3086 | /** |
Johannes Berg | 42d9879 | 2011-07-07 18:58:01 +0200 | [diff] [blame] | 3087 | * ieee80211_get_tkip_p1k_iv - get a TKIP phase 1 key for IV32 |
| 3088 | * |
| 3089 | * This function returns the TKIP phase 1 key for the given IV32. |
| 3090 | * |
| 3091 | * @keyconf: the parameter passed with the set key |
| 3092 | * @iv32: IV32 to get the P1K for |
| 3093 | * @p1k: a buffer to which the key will be written, as 5 u16 values |
| 3094 | */ |
| 3095 | void ieee80211_get_tkip_p1k_iv(struct ieee80211_key_conf *keyconf, |
| 3096 | u32 iv32, u16 *p1k); |
| 3097 | |
| 3098 | /** |
Johannes Berg | 523b02e | 2011-07-07 22:28:01 +0200 | [diff] [blame] | 3099 | * ieee80211_get_tkip_p1k - get a TKIP phase 1 key |
Emmanuel Grumbach | 5d2cdcd | 2008-03-20 15:06:41 +0200 | [diff] [blame] | 3100 | * |
Johannes Berg | 523b02e | 2011-07-07 22:28:01 +0200 | [diff] [blame] | 3101 | * This function returns the TKIP phase 1 key for the IV32 taken |
| 3102 | * from the given packet. |
Emmanuel Grumbach | 5d2cdcd | 2008-03-20 15:06:41 +0200 | [diff] [blame] | 3103 | * |
| 3104 | * @keyconf: the parameter passed with the set key |
Johannes Berg | 523b02e | 2011-07-07 22:28:01 +0200 | [diff] [blame] | 3105 | * @skb: the packet to take the IV32 value from that will be encrypted |
| 3106 | * with this P1K |
| 3107 | * @p1k: a buffer to which the key will be written, as 5 u16 values |
Emmanuel Grumbach | 5d2cdcd | 2008-03-20 15:06:41 +0200 | [diff] [blame] | 3108 | */ |
Johannes Berg | 42d9879 | 2011-07-07 18:58:01 +0200 | [diff] [blame] | 3109 | static inline void ieee80211_get_tkip_p1k(struct ieee80211_key_conf *keyconf, |
| 3110 | struct sk_buff *skb, u16 *p1k) |
| 3111 | { |
| 3112 | struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)skb->data; |
| 3113 | const u8 *data = (u8 *)hdr + ieee80211_hdrlen(hdr->frame_control); |
| 3114 | u32 iv32 = get_unaligned_le32(&data[4]); |
| 3115 | |
| 3116 | ieee80211_get_tkip_p1k_iv(keyconf, iv32, p1k); |
| 3117 | } |
Johannes Berg | 523b02e | 2011-07-07 22:28:01 +0200 | [diff] [blame] | 3118 | |
| 3119 | /** |
Johannes Berg | 8bca5d8 | 2011-07-13 19:50:34 +0200 | [diff] [blame] | 3120 | * ieee80211_get_tkip_rx_p1k - get a TKIP phase 1 key for RX |
| 3121 | * |
| 3122 | * This function returns the TKIP phase 1 key for the given IV32 |
| 3123 | * and transmitter address. |
| 3124 | * |
| 3125 | * @keyconf: the parameter passed with the set key |
| 3126 | * @ta: TA that will be used with the key |
| 3127 | * @iv32: IV32 to get the P1K for |
| 3128 | * @p1k: a buffer to which the key will be written, as 5 u16 values |
| 3129 | */ |
| 3130 | void ieee80211_get_tkip_rx_p1k(struct ieee80211_key_conf *keyconf, |
| 3131 | const u8 *ta, u32 iv32, u16 *p1k); |
| 3132 | |
| 3133 | /** |
Johannes Berg | 523b02e | 2011-07-07 22:28:01 +0200 | [diff] [blame] | 3134 | * ieee80211_get_tkip_p2k - get a TKIP phase 2 key |
| 3135 | * |
| 3136 | * This function computes the TKIP RC4 key for the IV values |
| 3137 | * in the packet. |
| 3138 | * |
| 3139 | * @keyconf: the parameter passed with the set key |
| 3140 | * @skb: the packet to take the IV32/IV16 values from that will be |
| 3141 | * encrypted with this key |
| 3142 | * @p2k: a buffer to which the key will be written, 16 bytes |
| 3143 | */ |
| 3144 | void ieee80211_get_tkip_p2k(struct ieee80211_key_conf *keyconf, |
| 3145 | struct sk_buff *skb, u8 *p2k); |
Johannes Berg | c68f4b8 | 2011-07-05 16:35:41 +0200 | [diff] [blame] | 3146 | |
| 3147 | /** |
Johannes Berg | 3ea542d | 2011-07-07 18:58:00 +0200 | [diff] [blame] | 3148 | * struct ieee80211_key_seq - key sequence counter |
| 3149 | * |
| 3150 | * @tkip: TKIP data, containing IV32 and IV16 in host byte order |
| 3151 | * @ccmp: PN data, most significant byte first (big endian, |
| 3152 | * reverse order than in packet) |
| 3153 | * @aes_cmac: PN data, most significant byte first (big endian, |
| 3154 | * reverse order than in packet) |
| 3155 | */ |
| 3156 | struct ieee80211_key_seq { |
| 3157 | union { |
| 3158 | struct { |
| 3159 | u32 iv32; |
| 3160 | u16 iv16; |
| 3161 | } tkip; |
| 3162 | struct { |
| 3163 | u8 pn[6]; |
| 3164 | } ccmp; |
| 3165 | struct { |
| 3166 | u8 pn[6]; |
| 3167 | } aes_cmac; |
| 3168 | }; |
| 3169 | }; |
| 3170 | |
| 3171 | /** |
| 3172 | * ieee80211_get_key_tx_seq - get key TX sequence counter |
| 3173 | * |
| 3174 | * @keyconf: the parameter passed with the set key |
| 3175 | * @seq: buffer to receive the sequence data |
| 3176 | * |
| 3177 | * This function allows a driver to retrieve the current TX IV/PN |
| 3178 | * for the given key. It must not be called if IV generation is |
| 3179 | * offloaded to the device. |
| 3180 | * |
| 3181 | * Note that this function may only be called when no TX processing |
| 3182 | * can be done concurrently, for example when queues are stopped |
| 3183 | * and the stop has been synchronized. |
| 3184 | */ |
| 3185 | void ieee80211_get_key_tx_seq(struct ieee80211_key_conf *keyconf, |
| 3186 | struct ieee80211_key_seq *seq); |
| 3187 | |
| 3188 | /** |
| 3189 | * ieee80211_get_key_rx_seq - get key RX sequence counter |
| 3190 | * |
| 3191 | * @keyconf: the parameter passed with the set key |
| 3192 | * @tid: The TID, or -1 for the management frame value (CCMP only); |
| 3193 | * the value on TID 0 is also used for non-QoS frames. For |
| 3194 | * CMAC, only TID 0 is valid. |
| 3195 | * @seq: buffer to receive the sequence data |
| 3196 | * |
| 3197 | * This function allows a driver to retrieve the current RX IV/PNs |
| 3198 | * for the given key. It must not be called if IV checking is done |
| 3199 | * by the device and not by mac80211. |
| 3200 | * |
| 3201 | * Note that this function may only be called when no RX processing |
| 3202 | * can be done concurrently. |
| 3203 | */ |
| 3204 | void ieee80211_get_key_rx_seq(struct ieee80211_key_conf *keyconf, |
| 3205 | int tid, struct ieee80211_key_seq *seq); |
| 3206 | |
| 3207 | /** |
Johannes Berg | c68f4b8 | 2011-07-05 16:35:41 +0200 | [diff] [blame] | 3208 | * ieee80211_gtk_rekey_notify - notify userspace supplicant of rekeying |
| 3209 | * @vif: virtual interface the rekeying was done on |
| 3210 | * @bssid: The BSSID of the AP, for checking association |
| 3211 | * @replay_ctr: the new replay counter after GTK rekeying |
| 3212 | * @gfp: allocation flags |
| 3213 | */ |
| 3214 | void ieee80211_gtk_rekey_notify(struct ieee80211_vif *vif, const u8 *bssid, |
| 3215 | const u8 *replay_ctr, gfp_t gfp); |
| 3216 | |
Emmanuel Grumbach | 5d2cdcd | 2008-03-20 15:06:41 +0200 | [diff] [blame] | 3217 | /** |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 3218 | * ieee80211_wake_queue - wake specific queue |
| 3219 | * @hw: pointer as obtained from ieee80211_alloc_hw(). |
| 3220 | * @queue: queue number (counted from zero). |
| 3221 | * |
| 3222 | * Drivers should use this function instead of netif_wake_queue. |
| 3223 | */ |
| 3224 | void ieee80211_wake_queue(struct ieee80211_hw *hw, int queue); |
| 3225 | |
| 3226 | /** |
| 3227 | * ieee80211_stop_queue - stop specific queue |
| 3228 | * @hw: pointer as obtained from ieee80211_alloc_hw(). |
| 3229 | * @queue: queue number (counted from zero). |
| 3230 | * |
| 3231 | * Drivers should use this function instead of netif_stop_queue. |
| 3232 | */ |
| 3233 | void ieee80211_stop_queue(struct ieee80211_hw *hw, int queue); |
| 3234 | |
| 3235 | /** |
Tomas Winkler | 92ab853 | 2008-07-24 21:02:04 +0300 | [diff] [blame] | 3236 | * ieee80211_queue_stopped - test status of the queue |
| 3237 | * @hw: pointer as obtained from ieee80211_alloc_hw(). |
| 3238 | * @queue: queue number (counted from zero). |
| 3239 | * |
| 3240 | * Drivers should use this function instead of netif_stop_queue. |
| 3241 | */ |
| 3242 | |
| 3243 | int ieee80211_queue_stopped(struct ieee80211_hw *hw, int queue); |
| 3244 | |
| 3245 | /** |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 3246 | * ieee80211_stop_queues - stop all queues |
| 3247 | * @hw: pointer as obtained from ieee80211_alloc_hw(). |
| 3248 | * |
| 3249 | * Drivers should use this function instead of netif_stop_queue. |
| 3250 | */ |
| 3251 | void ieee80211_stop_queues(struct ieee80211_hw *hw); |
| 3252 | |
| 3253 | /** |
| 3254 | * ieee80211_wake_queues - wake all queues |
| 3255 | * @hw: pointer as obtained from ieee80211_alloc_hw(). |
| 3256 | * |
| 3257 | * Drivers should use this function instead of netif_wake_queue. |
| 3258 | */ |
| 3259 | void ieee80211_wake_queues(struct ieee80211_hw *hw); |
| 3260 | |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 3261 | /** |
| 3262 | * ieee80211_scan_completed - completed hardware scan |
| 3263 | * |
| 3264 | * When hardware scan offload is used (i.e. the hw_scan() callback is |
| 3265 | * assigned) this function needs to be called by the driver to notify |
Johannes Berg | 8789d45 | 2010-08-26 13:30:26 +0200 | [diff] [blame] | 3266 | * mac80211 that the scan finished. This function can be called from |
| 3267 | * any context, including hardirq context. |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 3268 | * |
| 3269 | * @hw: the hardware that finished the scan |
Johannes Berg | 2a51931 | 2009-02-10 21:25:55 +0100 | [diff] [blame] | 3270 | * @aborted: set to true if scan was aborted |
Johannes Berg | 75a5f0c | 2007-09-18 17:29:20 -0400 | [diff] [blame] | 3271 | */ |
Johannes Berg | 2a51931 | 2009-02-10 21:25:55 +0100 | [diff] [blame] | 3272 | void ieee80211_scan_completed(struct ieee80211_hw *hw, bool aborted); |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 3273 | |
Johannes Berg | dabeb34 | 2007-11-09 01:57:29 +0100 | [diff] [blame] | 3274 | /** |
Luciano Coelho | 79f460c | 2011-05-11 17:09:36 +0300 | [diff] [blame] | 3275 | * ieee80211_sched_scan_results - got results from scheduled scan |
| 3276 | * |
| 3277 | * When a scheduled scan is running, this function needs to be called by the |
| 3278 | * driver whenever there are new scan results available. |
| 3279 | * |
| 3280 | * @hw: the hardware that is performing scheduled scans |
| 3281 | */ |
| 3282 | void ieee80211_sched_scan_results(struct ieee80211_hw *hw); |
| 3283 | |
| 3284 | /** |
| 3285 | * ieee80211_sched_scan_stopped - inform that the scheduled scan has stopped |
| 3286 | * |
| 3287 | * When a scheduled scan is running, this function can be called by |
| 3288 | * the driver if it needs to stop the scan to perform another task. |
| 3289 | * Usual scenarios are drivers that cannot continue the scheduled scan |
| 3290 | * while associating, for instance. |
| 3291 | * |
| 3292 | * @hw: the hardware that is performing scheduled scans |
| 3293 | */ |
| 3294 | void ieee80211_sched_scan_stopped(struct ieee80211_hw *hw); |
| 3295 | |
| 3296 | /** |
Randy Dunlap | 6ef307b | 2008-07-03 13:52:18 -0700 | [diff] [blame] | 3297 | * ieee80211_iterate_active_interfaces - iterate active interfaces |
Johannes Berg | dabeb34 | 2007-11-09 01:57:29 +0100 | [diff] [blame] | 3298 | * |
| 3299 | * This function iterates over the interfaces associated with a given |
| 3300 | * hardware that are currently active and calls the callback for them. |
Ivo van Doorn | 2f561fe | 2008-05-10 13:40:49 +0200 | [diff] [blame] | 3301 | * This function allows the iterator function to sleep, when the iterator |
| 3302 | * function is atomic @ieee80211_iterate_active_interfaces_atomic can |
| 3303 | * be used. |
Felix Fietkau | 2944f45 | 2010-09-14 18:37:20 +0200 | [diff] [blame] | 3304 | * Does not iterate over a new interface during add_interface() |
Johannes Berg | dabeb34 | 2007-11-09 01:57:29 +0100 | [diff] [blame] | 3305 | * |
| 3306 | * @hw: the hardware struct of which the interfaces should be iterated over |
Ivo van Doorn | 2f561fe | 2008-05-10 13:40:49 +0200 | [diff] [blame] | 3307 | * @iterator: the iterator function to call |
Johannes Berg | dabeb34 | 2007-11-09 01:57:29 +0100 | [diff] [blame] | 3308 | * @data: first argument of the iterator function |
| 3309 | */ |
| 3310 | void ieee80211_iterate_active_interfaces(struct ieee80211_hw *hw, |
| 3311 | void (*iterator)(void *data, u8 *mac, |
Johannes Berg | 32bfd35 | 2007-12-19 01:31:26 +0100 | [diff] [blame] | 3312 | struct ieee80211_vif *vif), |
Johannes Berg | dabeb34 | 2007-11-09 01:57:29 +0100 | [diff] [blame] | 3313 | void *data); |
| 3314 | |
Ron Rindjunsky | 0df3ef4 | 2008-01-28 14:07:15 +0200 | [diff] [blame] | 3315 | /** |
Ivo van Doorn | 2f561fe | 2008-05-10 13:40:49 +0200 | [diff] [blame] | 3316 | * ieee80211_iterate_active_interfaces_atomic - iterate active interfaces |
| 3317 | * |
| 3318 | * This function iterates over the interfaces associated with a given |
| 3319 | * hardware that are currently active and calls the callback for them. |
| 3320 | * This function requires the iterator callback function to be atomic, |
| 3321 | * if that is not desired, use @ieee80211_iterate_active_interfaces instead. |
Felix Fietkau | 2944f45 | 2010-09-14 18:37:20 +0200 | [diff] [blame] | 3322 | * Does not iterate over a new interface during add_interface() |
Ivo van Doorn | 2f561fe | 2008-05-10 13:40:49 +0200 | [diff] [blame] | 3323 | * |
| 3324 | * @hw: the hardware struct of which the interfaces should be iterated over |
| 3325 | * @iterator: the iterator function to call, cannot sleep |
| 3326 | * @data: first argument of the iterator function |
| 3327 | */ |
| 3328 | void ieee80211_iterate_active_interfaces_atomic(struct ieee80211_hw *hw, |
| 3329 | void (*iterator)(void *data, |
| 3330 | u8 *mac, |
| 3331 | struct ieee80211_vif *vif), |
| 3332 | void *data); |
| 3333 | |
| 3334 | /** |
Luis R. Rodriguez | 42935ec | 2009-07-29 20:08:07 -0400 | [diff] [blame] | 3335 | * ieee80211_queue_work - add work onto the mac80211 workqueue |
| 3336 | * |
| 3337 | * Drivers and mac80211 use this to add work onto the mac80211 workqueue. |
| 3338 | * This helper ensures drivers are not queueing work when they should not be. |
| 3339 | * |
| 3340 | * @hw: the hardware struct for the interface we are adding work for |
| 3341 | * @work: the work we want to add onto the mac80211 workqueue |
| 3342 | */ |
| 3343 | void ieee80211_queue_work(struct ieee80211_hw *hw, struct work_struct *work); |
| 3344 | |
| 3345 | /** |
| 3346 | * ieee80211_queue_delayed_work - add work onto the mac80211 workqueue |
| 3347 | * |
| 3348 | * Drivers and mac80211 use this to queue delayed work onto the mac80211 |
| 3349 | * workqueue. |
| 3350 | * |
| 3351 | * @hw: the hardware struct for the interface we are adding work for |
| 3352 | * @dwork: delayable work to queue onto the mac80211 workqueue |
| 3353 | * @delay: number of jiffies to wait before queueing |
| 3354 | */ |
| 3355 | void ieee80211_queue_delayed_work(struct ieee80211_hw *hw, |
| 3356 | struct delayed_work *dwork, |
| 3357 | unsigned long delay); |
| 3358 | |
| 3359 | /** |
Ron Rindjunsky | 0df3ef4 | 2008-01-28 14:07:15 +0200 | [diff] [blame] | 3360 | * ieee80211_start_tx_ba_session - Start a tx Block Ack session. |
Johannes Berg | c951ad3 | 2009-11-16 12:00:38 +0100 | [diff] [blame] | 3361 | * @sta: the station for which to start a BA session |
Ron Rindjunsky | 0df3ef4 | 2008-01-28 14:07:15 +0200 | [diff] [blame] | 3362 | * @tid: the TID to BA on. |
Sujith Manoharan | bd2ce6e | 2010-12-15 07:47:10 +0530 | [diff] [blame] | 3363 | * @timeout: session timeout value (in TUs) |
Randy Dunlap | ea2d8b5 | 2008-10-27 09:47:03 -0700 | [diff] [blame] | 3364 | * |
| 3365 | * Return: success if addBA request was sent, failure otherwise |
Ron Rindjunsky | 0df3ef4 | 2008-01-28 14:07:15 +0200 | [diff] [blame] | 3366 | * |
| 3367 | * Although mac80211/low level driver/user space application can estimate |
| 3368 | * the need to start aggregation on a certain RA/TID, the session level |
| 3369 | * will be managed by the mac80211. |
| 3370 | */ |
Sujith Manoharan | bd2ce6e | 2010-12-15 07:47:10 +0530 | [diff] [blame] | 3371 | int ieee80211_start_tx_ba_session(struct ieee80211_sta *sta, u16 tid, |
| 3372 | u16 timeout); |
Ron Rindjunsky | 0df3ef4 | 2008-01-28 14:07:15 +0200 | [diff] [blame] | 3373 | |
| 3374 | /** |
Ron Rindjunsky | 0df3ef4 | 2008-01-28 14:07:15 +0200 | [diff] [blame] | 3375 | * ieee80211_start_tx_ba_cb_irqsafe - low level driver ready to aggregate. |
Johannes Berg | 1ed32e4 | 2009-12-23 13:15:45 +0100 | [diff] [blame] | 3376 | * @vif: &struct ieee80211_vif pointer from the add_interface callback |
Ron Rindjunsky | 0df3ef4 | 2008-01-28 14:07:15 +0200 | [diff] [blame] | 3377 | * @ra: receiver address of the BA session recipient. |
| 3378 | * @tid: the TID to BA on. |
| 3379 | * |
| 3380 | * This function must be called by low level driver once it has |
Johannes Berg | 5d22c89 | 2010-06-10 10:21:40 +0200 | [diff] [blame] | 3381 | * finished with preparations for the BA session. It can be called |
| 3382 | * from any context. |
Ron Rindjunsky | 0df3ef4 | 2008-01-28 14:07:15 +0200 | [diff] [blame] | 3383 | */ |
Johannes Berg | c951ad3 | 2009-11-16 12:00:38 +0100 | [diff] [blame] | 3384 | void ieee80211_start_tx_ba_cb_irqsafe(struct ieee80211_vif *vif, const u8 *ra, |
Ron Rindjunsky | 0df3ef4 | 2008-01-28 14:07:15 +0200 | [diff] [blame] | 3385 | u16 tid); |
| 3386 | |
| 3387 | /** |
| 3388 | * ieee80211_stop_tx_ba_session - Stop a Block Ack session. |
Johannes Berg | c951ad3 | 2009-11-16 12:00:38 +0100 | [diff] [blame] | 3389 | * @sta: the station whose BA session to stop |
Ron Rindjunsky | 0df3ef4 | 2008-01-28 14:07:15 +0200 | [diff] [blame] | 3390 | * @tid: the TID to stop BA. |
Randy Dunlap | ea2d8b5 | 2008-10-27 09:47:03 -0700 | [diff] [blame] | 3391 | * |
Johannes Berg | 6a8579d | 2010-05-27 14:41:07 +0200 | [diff] [blame] | 3392 | * Return: negative error if the TID is invalid, or no aggregation active |
Ron Rindjunsky | 0df3ef4 | 2008-01-28 14:07:15 +0200 | [diff] [blame] | 3393 | * |
| 3394 | * Although mac80211/low level driver/user space application can estimate |
| 3395 | * the need to stop aggregation on a certain RA/TID, the session level |
| 3396 | * will be managed by the mac80211. |
| 3397 | */ |
Johannes Berg | 6a8579d | 2010-05-27 14:41:07 +0200 | [diff] [blame] | 3398 | int ieee80211_stop_tx_ba_session(struct ieee80211_sta *sta, u16 tid); |
Ron Rindjunsky | 0df3ef4 | 2008-01-28 14:07:15 +0200 | [diff] [blame] | 3399 | |
| 3400 | /** |
Ron Rindjunsky | 0df3ef4 | 2008-01-28 14:07:15 +0200 | [diff] [blame] | 3401 | * ieee80211_stop_tx_ba_cb_irqsafe - low level driver ready to stop aggregate. |
Johannes Berg | 1ed32e4 | 2009-12-23 13:15:45 +0100 | [diff] [blame] | 3402 | * @vif: &struct ieee80211_vif pointer from the add_interface callback |
Ron Rindjunsky | 0df3ef4 | 2008-01-28 14:07:15 +0200 | [diff] [blame] | 3403 | * @ra: receiver address of the BA session recipient. |
| 3404 | * @tid: the desired TID to BA on. |
| 3405 | * |
| 3406 | * This function must be called by low level driver once it has |
Johannes Berg | 5d22c89 | 2010-06-10 10:21:40 +0200 | [diff] [blame] | 3407 | * finished with preparations for the BA session tear down. It |
| 3408 | * can be called from any context. |
Ron Rindjunsky | 0df3ef4 | 2008-01-28 14:07:15 +0200 | [diff] [blame] | 3409 | */ |
Johannes Berg | c951ad3 | 2009-11-16 12:00:38 +0100 | [diff] [blame] | 3410 | void ieee80211_stop_tx_ba_cb_irqsafe(struct ieee80211_vif *vif, const u8 *ra, |
Ron Rindjunsky | 0df3ef4 | 2008-01-28 14:07:15 +0200 | [diff] [blame] | 3411 | u16 tid); |
| 3412 | |
Mohamed Abbas | 84363e6 | 2008-04-04 16:59:58 -0700 | [diff] [blame] | 3413 | /** |
Johannes Berg | 17741cd | 2008-09-11 00:02:02 +0200 | [diff] [blame] | 3414 | * ieee80211_find_sta - find a station |
| 3415 | * |
Johannes Berg | 5ed176e | 2009-11-04 14:42:28 +0100 | [diff] [blame] | 3416 | * @vif: virtual interface to look for station on |
Johannes Berg | 17741cd | 2008-09-11 00:02:02 +0200 | [diff] [blame] | 3417 | * @addr: station's address |
| 3418 | * |
| 3419 | * This function must be called under RCU lock and the |
| 3420 | * resulting pointer is only valid under RCU lock as well. |
| 3421 | */ |
Johannes Berg | 5ed176e | 2009-11-04 14:42:28 +0100 | [diff] [blame] | 3422 | struct ieee80211_sta *ieee80211_find_sta(struct ieee80211_vif *vif, |
Johannes Berg | 17741cd | 2008-09-11 00:02:02 +0200 | [diff] [blame] | 3423 | const u8 *addr); |
| 3424 | |
Kalle Valo | 04de838 | 2009-03-22 21:57:35 +0200 | [diff] [blame] | 3425 | /** |
Ben Greear | 686b9cb | 2010-09-23 09:44:36 -0700 | [diff] [blame] | 3426 | * ieee80211_find_sta_by_ifaddr - find a station on hardware |
Johannes Berg | 5ed176e | 2009-11-04 14:42:28 +0100 | [diff] [blame] | 3427 | * |
| 3428 | * @hw: pointer as obtained from ieee80211_alloc_hw() |
Ben Greear | 686b9cb | 2010-09-23 09:44:36 -0700 | [diff] [blame] | 3429 | * @addr: remote station's address |
| 3430 | * @localaddr: local address (vif->sdata->vif.addr). Use NULL for 'any'. |
Johannes Berg | 5ed176e | 2009-11-04 14:42:28 +0100 | [diff] [blame] | 3431 | * |
| 3432 | * This function must be called under RCU lock and the |
| 3433 | * resulting pointer is only valid under RCU lock as well. |
| 3434 | * |
Ben Greear | 686b9cb | 2010-09-23 09:44:36 -0700 | [diff] [blame] | 3435 | * NOTE: You may pass NULL for localaddr, but then you will just get |
| 3436 | * the first STA that matches the remote address 'addr'. |
| 3437 | * We can have multiple STA associated with multiple |
| 3438 | * logical stations (e.g. consider a station connecting to another |
| 3439 | * BSSID on the same AP hardware without disconnecting first). |
| 3440 | * In this case, the result of this method with localaddr NULL |
| 3441 | * is not reliable. |
Johannes Berg | 5ed176e | 2009-11-04 14:42:28 +0100 | [diff] [blame] | 3442 | * |
Ben Greear | 686b9cb | 2010-09-23 09:44:36 -0700 | [diff] [blame] | 3443 | * DO NOT USE THIS FUNCTION with localaddr NULL if at all possible. |
Johannes Berg | 5ed176e | 2009-11-04 14:42:28 +0100 | [diff] [blame] | 3444 | */ |
Ben Greear | 686b9cb | 2010-09-23 09:44:36 -0700 | [diff] [blame] | 3445 | struct ieee80211_sta *ieee80211_find_sta_by_ifaddr(struct ieee80211_hw *hw, |
| 3446 | const u8 *addr, |
| 3447 | const u8 *localaddr); |
Johannes Berg | 5ed176e | 2009-11-04 14:42:28 +0100 | [diff] [blame] | 3448 | |
| 3449 | /** |
Johannes Berg | af81858 | 2009-11-06 11:35:50 +0100 | [diff] [blame] | 3450 | * ieee80211_sta_block_awake - block station from waking up |
| 3451 | * @hw: the hardware |
| 3452 | * @pubsta: the station |
| 3453 | * @block: whether to block or unblock |
| 3454 | * |
| 3455 | * Some devices require that all frames that are on the queues |
| 3456 | * for a specific station that went to sleep are flushed before |
| 3457 | * a poll response or frames after the station woke up can be |
| 3458 | * delivered to that it. Note that such frames must be rejected |
| 3459 | * by the driver as filtered, with the appropriate status flag. |
| 3460 | * |
| 3461 | * This function allows implementing this mode in a race-free |
| 3462 | * manner. |
| 3463 | * |
| 3464 | * To do this, a driver must keep track of the number of frames |
| 3465 | * still enqueued for a specific station. If this number is not |
| 3466 | * zero when the station goes to sleep, the driver must call |
| 3467 | * this function to force mac80211 to consider the station to |
| 3468 | * be asleep regardless of the station's actual state. Once the |
| 3469 | * number of outstanding frames reaches zero, the driver must |
| 3470 | * call this function again to unblock the station. That will |
| 3471 | * cause mac80211 to be able to send ps-poll responses, and if |
| 3472 | * the station queried in the meantime then frames will also |
| 3473 | * be sent out as a result of this. Additionally, the driver |
| 3474 | * will be notified that the station woke up some time after |
| 3475 | * it is unblocked, regardless of whether the station actually |
| 3476 | * woke up while blocked or not. |
| 3477 | */ |
| 3478 | void ieee80211_sta_block_awake(struct ieee80211_hw *hw, |
| 3479 | struct ieee80211_sta *pubsta, bool block); |
| 3480 | |
| 3481 | /** |
Johannes Berg | 37fbd90 | 2011-09-29 16:04:39 +0200 | [diff] [blame] | 3482 | * ieee80211_sta_eosp - notify mac80211 about end of SP |
| 3483 | * @pubsta: the station |
| 3484 | * |
| 3485 | * When a device transmits frames in a way that it can't tell |
| 3486 | * mac80211 in the TX status about the EOSP, it must clear the |
| 3487 | * %IEEE80211_TX_STATUS_EOSP bit and call this function instead. |
| 3488 | * This applies for PS-Poll as well as uAPSD. |
| 3489 | * |
| 3490 | * Note that there is no non-_irqsafe version right now as |
| 3491 | * it wasn't needed, but just like _tx_status() and _rx() |
| 3492 | * must not be mixed in irqsafe/non-irqsafe versions, this |
| 3493 | * function must not be mixed with those either. Use the |
| 3494 | * all irqsafe, or all non-irqsafe, don't mix! If you need |
| 3495 | * the non-irqsafe version of this, you need to add it. |
| 3496 | */ |
| 3497 | void ieee80211_sta_eosp_irqsafe(struct ieee80211_sta *pubsta); |
| 3498 | |
| 3499 | /** |
Johannes Berg | 830af02 | 2011-07-05 16:35:39 +0200 | [diff] [blame] | 3500 | * ieee80211_iter_keys - iterate keys programmed into the device |
| 3501 | * @hw: pointer obtained from ieee80211_alloc_hw() |
| 3502 | * @vif: virtual interface to iterate, may be %NULL for all |
| 3503 | * @iter: iterator function that will be called for each key |
| 3504 | * @iter_data: custom data to pass to the iterator function |
| 3505 | * |
| 3506 | * This function can be used to iterate all the keys known to |
| 3507 | * mac80211, even those that weren't previously programmed into |
| 3508 | * the device. This is intended for use in WoWLAN if the device |
| 3509 | * needs reprogramming of the keys during suspend. Note that due |
| 3510 | * to locking reasons, it is also only safe to call this at few |
| 3511 | * spots since it must hold the RTNL and be able to sleep. |
Johannes Berg | f850e00 | 2011-07-13 19:50:53 +0200 | [diff] [blame] | 3512 | * |
| 3513 | * The order in which the keys are iterated matches the order |
| 3514 | * in which they were originally installed and handed to the |
| 3515 | * set_key callback. |
Johannes Berg | 830af02 | 2011-07-05 16:35:39 +0200 | [diff] [blame] | 3516 | */ |
| 3517 | void ieee80211_iter_keys(struct ieee80211_hw *hw, |
| 3518 | struct ieee80211_vif *vif, |
| 3519 | void (*iter)(struct ieee80211_hw *hw, |
| 3520 | struct ieee80211_vif *vif, |
| 3521 | struct ieee80211_sta *sta, |
| 3522 | struct ieee80211_key_conf *key, |
| 3523 | void *data), |
| 3524 | void *iter_data); |
| 3525 | |
| 3526 | /** |
Juuso Oikarinen | a619a4c | 2010-11-11 08:50:18 +0200 | [diff] [blame] | 3527 | * ieee80211_ap_probereq_get - retrieve a Probe Request template |
| 3528 | * @hw: pointer obtained from ieee80211_alloc_hw(). |
| 3529 | * @vif: &struct ieee80211_vif pointer from the add_interface callback. |
| 3530 | * |
| 3531 | * Creates a Probe Request template which can, for example, be uploaded to |
| 3532 | * hardware. The template is filled with bssid, ssid and supported rate |
| 3533 | * information. This function must only be called from within the |
| 3534 | * .bss_info_changed callback function and only in managed mode. The function |
| 3535 | * is only useful when the interface is associated, otherwise it will return |
| 3536 | * NULL. |
| 3537 | */ |
| 3538 | struct sk_buff *ieee80211_ap_probereq_get(struct ieee80211_hw *hw, |
| 3539 | struct ieee80211_vif *vif); |
| 3540 | |
| 3541 | /** |
Kalle Valo | 04de838 | 2009-03-22 21:57:35 +0200 | [diff] [blame] | 3542 | * ieee80211_beacon_loss - inform hardware does not receive beacons |
| 3543 | * |
Johannes Berg | 1ed32e4 | 2009-12-23 13:15:45 +0100 | [diff] [blame] | 3544 | * @vif: &struct ieee80211_vif pointer from the add_interface callback. |
Kalle Valo | 04de838 | 2009-03-22 21:57:35 +0200 | [diff] [blame] | 3545 | * |
Johannes Berg | c1288b1 | 2012-01-19 09:29:57 +0100 | [diff] [blame] | 3546 | * When beacon filtering is enabled with %IEEE80211_VIF_BEACON_FILTER and |
Juuso Oikarinen | 1e4dcd0 | 2010-03-19 07:14:53 +0200 | [diff] [blame] | 3547 | * %IEEE80211_CONF_PS is set, the driver needs to inform whenever the |
Kalle Valo | 04de838 | 2009-03-22 21:57:35 +0200 | [diff] [blame] | 3548 | * hardware is not receiving beacons with this function. |
| 3549 | */ |
| 3550 | void ieee80211_beacon_loss(struct ieee80211_vif *vif); |
Johannes Berg | 4b7679a | 2008-09-18 18:14:18 +0200 | [diff] [blame] | 3551 | |
Juuso Oikarinen | 1e4dcd0 | 2010-03-19 07:14:53 +0200 | [diff] [blame] | 3552 | /** |
| 3553 | * ieee80211_connection_loss - inform hardware has lost connection to the AP |
| 3554 | * |
| 3555 | * @vif: &struct ieee80211_vif pointer from the add_interface callback. |
| 3556 | * |
Johannes Berg | c1288b1 | 2012-01-19 09:29:57 +0100 | [diff] [blame] | 3557 | * When beacon filtering is enabled with %IEEE80211_VIF_BEACON_FILTER, and |
Juuso Oikarinen | 1e4dcd0 | 2010-03-19 07:14:53 +0200 | [diff] [blame] | 3558 | * %IEEE80211_CONF_PS and %IEEE80211_HW_CONNECTION_MONITOR are set, the driver |
| 3559 | * needs to inform if the connection to the AP has been lost. |
| 3560 | * |
| 3561 | * This function will cause immediate change to disassociated state, |
| 3562 | * without connection recovery attempts. |
| 3563 | */ |
| 3564 | void ieee80211_connection_loss(struct ieee80211_vif *vif); |
| 3565 | |
Juuso Oikarinen | a97c13c | 2010-03-23 09:02:34 +0200 | [diff] [blame] | 3566 | /** |
Johannes Berg | 95acac6 | 2011-07-12 12:30:59 +0200 | [diff] [blame] | 3567 | * ieee80211_resume_disconnect - disconnect from AP after resume |
| 3568 | * |
| 3569 | * @vif: &struct ieee80211_vif pointer from the add_interface callback. |
| 3570 | * |
| 3571 | * Instructs mac80211 to disconnect from the AP after resume. |
| 3572 | * Drivers can use this after WoWLAN if they know that the |
| 3573 | * connection cannot be kept up, for example because keys were |
| 3574 | * used while the device was asleep but the replay counters or |
| 3575 | * similar cannot be retrieved from the device during resume. |
| 3576 | * |
| 3577 | * Note that due to implementation issues, if the driver uses |
| 3578 | * the reconfiguration functionality during resume the interface |
| 3579 | * will still be added as associated first during resume and then |
| 3580 | * disconnect normally later. |
| 3581 | * |
| 3582 | * This function can only be called from the resume callback and |
| 3583 | * the driver must not be holding any of its own locks while it |
| 3584 | * calls this function, or at least not any locks it needs in the |
| 3585 | * key configuration paths (if it supports HW crypto). |
| 3586 | */ |
| 3587 | void ieee80211_resume_disconnect(struct ieee80211_vif *vif); |
| 3588 | |
| 3589 | /** |
Juuso Oikarinen | f90754c | 2010-06-21 08:59:39 +0300 | [diff] [blame] | 3590 | * ieee80211_disable_dyn_ps - force mac80211 to temporarily disable dynamic psm |
| 3591 | * |
| 3592 | * @vif: &struct ieee80211_vif pointer from the add_interface callback. |
| 3593 | * |
| 3594 | * Some hardware require full power save to manage simultaneous BT traffic |
| 3595 | * on the WLAN frequency. Full PSM is required periodically, whenever there are |
| 3596 | * burst of BT traffic. The hardware gets information of BT traffic via |
| 3597 | * hardware co-existence lines, and consequentially requests mac80211 to |
| 3598 | * (temporarily) enter full psm. |
| 3599 | * This function will only temporarily disable dynamic PS, not enable PSM if |
| 3600 | * it was not already enabled. |
| 3601 | * The driver must make sure to re-enable dynamic PS using |
| 3602 | * ieee80211_enable_dyn_ps() if the driver has disabled it. |
| 3603 | * |
| 3604 | */ |
| 3605 | void ieee80211_disable_dyn_ps(struct ieee80211_vif *vif); |
| 3606 | |
| 3607 | /** |
| 3608 | * ieee80211_enable_dyn_ps - restore dynamic psm after being disabled |
| 3609 | * |
| 3610 | * @vif: &struct ieee80211_vif pointer from the add_interface callback. |
| 3611 | * |
| 3612 | * This function restores dynamic PS after being temporarily disabled via |
| 3613 | * ieee80211_disable_dyn_ps(). Each ieee80211_disable_dyn_ps() call must |
| 3614 | * be coupled with an eventual call to this function. |
| 3615 | * |
| 3616 | */ |
| 3617 | void ieee80211_enable_dyn_ps(struct ieee80211_vif *vif); |
| 3618 | |
| 3619 | /** |
Juuso Oikarinen | a97c13c | 2010-03-23 09:02:34 +0200 | [diff] [blame] | 3620 | * ieee80211_cqm_rssi_notify - inform a configured connection quality monitoring |
| 3621 | * rssi threshold triggered |
| 3622 | * |
| 3623 | * @vif: &struct ieee80211_vif pointer from the add_interface callback. |
| 3624 | * @rssi_event: the RSSI trigger event type |
| 3625 | * @gfp: context flags |
| 3626 | * |
Johannes Berg | ea08635 | 2012-01-19 09:29:58 +0100 | [diff] [blame] | 3627 | * When the %IEEE80211_VIF_SUPPORTS_CQM_RSSI is set, and a connection quality |
Juuso Oikarinen | a97c13c | 2010-03-23 09:02:34 +0200 | [diff] [blame] | 3628 | * monitoring is configured with an rssi threshold, the driver will inform |
| 3629 | * whenever the rssi level reaches the threshold. |
| 3630 | */ |
| 3631 | void ieee80211_cqm_rssi_notify(struct ieee80211_vif *vif, |
| 3632 | enum nl80211_cqm_rssi_threshold_event rssi_event, |
| 3633 | gfp_t gfp); |
| 3634 | |
Johannes Berg | 5ce6e43 | 2010-05-11 16:20:57 +0200 | [diff] [blame] | 3635 | /** |
| 3636 | * ieee80211_chswitch_done - Complete channel switch process |
| 3637 | * @vif: &struct ieee80211_vif pointer from the add_interface callback. |
| 3638 | * @success: make the channel switch successful or not |
| 3639 | * |
| 3640 | * Complete the channel switch post-process: set the new operational channel |
| 3641 | * and wake up the suspended queues. |
| 3642 | */ |
| 3643 | void ieee80211_chswitch_done(struct ieee80211_vif *vif, bool success); |
| 3644 | |
Johannes Berg | d1f5b7a | 2010-08-05 17:05:55 +0200 | [diff] [blame] | 3645 | /** |
| 3646 | * ieee80211_request_smps - request SM PS transition |
| 3647 | * @vif: &struct ieee80211_vif pointer from the add_interface callback. |
Johannes Berg | 633dd1e | 2010-08-18 15:01:23 +0200 | [diff] [blame] | 3648 | * @smps_mode: new SM PS mode |
Johannes Berg | d1f5b7a | 2010-08-05 17:05:55 +0200 | [diff] [blame] | 3649 | * |
| 3650 | * This allows the driver to request an SM PS transition in managed |
| 3651 | * mode. This is useful when the driver has more information than |
| 3652 | * the stack about possible interference, for example by bluetooth. |
| 3653 | */ |
| 3654 | void ieee80211_request_smps(struct ieee80211_vif *vif, |
| 3655 | enum ieee80211_smps_mode smps_mode); |
| 3656 | |
Johannes Berg | e31b821 | 2010-10-05 19:39:30 +0200 | [diff] [blame] | 3657 | /** |
Johannes Berg | 21f8358 | 2010-12-18 17:20:47 +0100 | [diff] [blame] | 3658 | * ieee80211_ready_on_channel - notification of remain-on-channel start |
| 3659 | * @hw: pointer as obtained from ieee80211_alloc_hw() |
| 3660 | */ |
| 3661 | void ieee80211_ready_on_channel(struct ieee80211_hw *hw); |
| 3662 | |
| 3663 | /** |
| 3664 | * ieee80211_remain_on_channel_expired - remain_on_channel duration expired |
| 3665 | * @hw: pointer as obtained from ieee80211_alloc_hw() |
| 3666 | */ |
| 3667 | void ieee80211_remain_on_channel_expired(struct ieee80211_hw *hw); |
| 3668 | |
Shahar Levi | f41ccd7 | 2011-05-22 16:10:21 +0300 | [diff] [blame] | 3669 | /** |
| 3670 | * ieee80211_stop_rx_ba_session - callback to stop existing BA sessions |
| 3671 | * |
| 3672 | * in order not to harm the system performance and user experience, the device |
| 3673 | * may request not to allow any rx ba session and tear down existing rx ba |
| 3674 | * sessions based on system constraints such as periodic BT activity that needs |
| 3675 | * to limit wlan activity (eg.sco or a2dp)." |
| 3676 | * in such cases, the intention is to limit the duration of the rx ppdu and |
| 3677 | * therefore prevent the peer device to use a-mpdu aggregation. |
| 3678 | * |
| 3679 | * @vif: &struct ieee80211_vif pointer from the add_interface callback. |
| 3680 | * @ba_rx_bitmap: Bit map of open rx ba per tid |
| 3681 | * @addr: & to bssid mac address |
| 3682 | */ |
| 3683 | void ieee80211_stop_rx_ba_session(struct ieee80211_vif *vif, u16 ba_rx_bitmap, |
| 3684 | const u8 *addr); |
| 3685 | |
Felix Fietkau | 8c77124 | 2011-08-20 15:53:55 +0200 | [diff] [blame] | 3686 | /** |
| 3687 | * ieee80211_send_bar - send a BlockAckReq frame |
| 3688 | * |
| 3689 | * can be used to flush pending frames from the peer's aggregation reorder |
| 3690 | * buffer. |
| 3691 | * |
| 3692 | * @vif: &struct ieee80211_vif pointer from the add_interface callback. |
| 3693 | * @ra: the peer's destination address |
| 3694 | * @tid: the TID of the aggregation session |
| 3695 | * @ssn: the new starting sequence number for the receiver |
| 3696 | */ |
| 3697 | void ieee80211_send_bar(struct ieee80211_vif *vif, u8 *ra, u16 tid, u16 ssn); |
| 3698 | |
Johannes Berg | 4b7679a | 2008-09-18 18:14:18 +0200 | [diff] [blame] | 3699 | /* Rate control API */ |
Johannes Berg | e6a9854 | 2008-10-21 12:40:02 +0200 | [diff] [blame] | 3700 | |
Johannes Berg | 4b7679a | 2008-09-18 18:14:18 +0200 | [diff] [blame] | 3701 | /** |
Johannes Berg | e6a9854 | 2008-10-21 12:40:02 +0200 | [diff] [blame] | 3702 | * struct ieee80211_tx_rate_control - rate control information for/from RC algo |
Johannes Berg | 4b7679a | 2008-09-18 18:14:18 +0200 | [diff] [blame] | 3703 | * |
Johannes Berg | e6a9854 | 2008-10-21 12:40:02 +0200 | [diff] [blame] | 3704 | * @hw: The hardware the algorithm is invoked for. |
| 3705 | * @sband: The band this frame is being transmitted on. |
| 3706 | * @bss_conf: the current BSS configuration |
Simon Wunderlich | f44d4eb | 2012-03-07 21:31:13 +0100 | [diff] [blame] | 3707 | * @skb: the skb that will be transmitted, the control information in it needs |
| 3708 | * to be filled in |
Johannes Berg | e6a9854 | 2008-10-21 12:40:02 +0200 | [diff] [blame] | 3709 | * @reported_rate: The rate control algorithm can fill this in to indicate |
| 3710 | * which rate should be reported to userspace as the current rate and |
| 3711 | * used for rate calculations in the mesh network. |
| 3712 | * @rts: whether RTS will be used for this frame because it is longer than the |
| 3713 | * RTS threshold |
| 3714 | * @short_preamble: whether mac80211 will request short-preamble transmission |
| 3715 | * if the selected rate supports it |
Simon Wunderlich | f44d4eb | 2012-03-07 21:31:13 +0100 | [diff] [blame] | 3716 | * @max_rate_idx: user-requested maximum (legacy) rate |
Jouni Malinen | 37eb0b1 | 2010-01-06 13:09:08 +0200 | [diff] [blame] | 3717 | * (deprecated; this will be removed once drivers get updated to use |
| 3718 | * rate_idx_mask) |
Simon Wunderlich | f44d4eb | 2012-03-07 21:31:13 +0100 | [diff] [blame] | 3719 | * @rate_idx_mask: user-requested (legacy) rate mask |
| 3720 | * @rate_idx_mcs_mask: user-requested MCS rate mask |
Felix Fietkau | 8f0729b | 2010-11-11 15:07:23 +0100 | [diff] [blame] | 3721 | * @bss: whether this frame is sent out in AP or IBSS mode |
Johannes Berg | 4b7679a | 2008-09-18 18:14:18 +0200 | [diff] [blame] | 3722 | */ |
Johannes Berg | e6a9854 | 2008-10-21 12:40:02 +0200 | [diff] [blame] | 3723 | struct ieee80211_tx_rate_control { |
| 3724 | struct ieee80211_hw *hw; |
| 3725 | struct ieee80211_supported_band *sband; |
| 3726 | struct ieee80211_bss_conf *bss_conf; |
| 3727 | struct sk_buff *skb; |
| 3728 | struct ieee80211_tx_rate reported_rate; |
| 3729 | bool rts, short_preamble; |
| 3730 | u8 max_rate_idx; |
Jouni Malinen | 37eb0b1 | 2010-01-06 13:09:08 +0200 | [diff] [blame] | 3731 | u32 rate_idx_mask; |
Simon Wunderlich | 1946841 | 2012-01-28 17:25:33 +0100 | [diff] [blame] | 3732 | u8 rate_idx_mcs_mask[IEEE80211_HT_MCS_MASK_LEN]; |
Felix Fietkau | 8f0729b | 2010-11-11 15:07:23 +0100 | [diff] [blame] | 3733 | bool bss; |
Johannes Berg | 4b7679a | 2008-09-18 18:14:18 +0200 | [diff] [blame] | 3734 | }; |
| 3735 | |
| 3736 | struct rate_control_ops { |
| 3737 | struct module *module; |
| 3738 | const char *name; |
| 3739 | void *(*alloc)(struct ieee80211_hw *hw, struct dentry *debugfsdir); |
Johannes Berg | 4b7679a | 2008-09-18 18:14:18 +0200 | [diff] [blame] | 3740 | void (*free)(void *priv); |
| 3741 | |
| 3742 | void *(*alloc_sta)(void *priv, struct ieee80211_sta *sta, gfp_t gfp); |
| 3743 | void (*rate_init)(void *priv, struct ieee80211_supported_band *sband, |
| 3744 | struct ieee80211_sta *sta, void *priv_sta); |
Sujith | 81cb762 | 2009-02-12 11:38:37 +0530 | [diff] [blame] | 3745 | void (*rate_update)(void *priv, struct ieee80211_supported_band *sband, |
Johannes Berg | 64f68e5 | 2012-03-28 10:58:37 +0200 | [diff] [blame] | 3746 | struct ieee80211_sta *sta, void *priv_sta, |
| 3747 | u32 changed); |
Johannes Berg | 4b7679a | 2008-09-18 18:14:18 +0200 | [diff] [blame] | 3748 | void (*free_sta)(void *priv, struct ieee80211_sta *sta, |
| 3749 | void *priv_sta); |
| 3750 | |
| 3751 | void (*tx_status)(void *priv, struct ieee80211_supported_band *sband, |
| 3752 | struct ieee80211_sta *sta, void *priv_sta, |
| 3753 | struct sk_buff *skb); |
Johannes Berg | e6a9854 | 2008-10-21 12:40:02 +0200 | [diff] [blame] | 3754 | void (*get_rate)(void *priv, struct ieee80211_sta *sta, void *priv_sta, |
| 3755 | struct ieee80211_tx_rate_control *txrc); |
Johannes Berg | 4b7679a | 2008-09-18 18:14:18 +0200 | [diff] [blame] | 3756 | |
| 3757 | void (*add_sta_debugfs)(void *priv, void *priv_sta, |
| 3758 | struct dentry *dir); |
| 3759 | void (*remove_sta_debugfs)(void *priv, void *priv_sta); |
| 3760 | }; |
| 3761 | |
| 3762 | static inline int rate_supported(struct ieee80211_sta *sta, |
| 3763 | enum ieee80211_band band, |
| 3764 | int index) |
| 3765 | { |
| 3766 | return (sta == NULL || sta->supp_rates[band] & BIT(index)); |
| 3767 | } |
| 3768 | |
Luis R. Rodriguez | 4c6d4f5 | 2009-07-16 10:05:41 -0700 | [diff] [blame] | 3769 | /** |
| 3770 | * rate_control_send_low - helper for drivers for management/no-ack frames |
| 3771 | * |
| 3772 | * Rate control algorithms that agree to use the lowest rate to |
| 3773 | * send management frames and NO_ACK data with the respective hw |
| 3774 | * retries should use this in the beginning of their mac80211 get_rate |
| 3775 | * callback. If true is returned the rate control can simply return. |
| 3776 | * If false is returned we guarantee that sta and sta and priv_sta is |
| 3777 | * not null. |
| 3778 | * |
| 3779 | * Rate control algorithms wishing to do more intelligent selection of |
| 3780 | * rate for multicast/broadcast frames may choose to not use this. |
| 3781 | * |
| 3782 | * @sta: &struct ieee80211_sta pointer to the target destination. Note |
| 3783 | * that this may be null. |
| 3784 | * @priv_sta: private rate control structure. This may be null. |
| 3785 | * @txrc: rate control information we sholud populate for mac80211. |
| 3786 | */ |
| 3787 | bool rate_control_send_low(struct ieee80211_sta *sta, |
| 3788 | void *priv_sta, |
| 3789 | struct ieee80211_tx_rate_control *txrc); |
| 3790 | |
| 3791 | |
Johannes Berg | 4b7679a | 2008-09-18 18:14:18 +0200 | [diff] [blame] | 3792 | static inline s8 |
| 3793 | rate_lowest_index(struct ieee80211_supported_band *sband, |
| 3794 | struct ieee80211_sta *sta) |
| 3795 | { |
| 3796 | int i; |
| 3797 | |
| 3798 | for (i = 0; i < sband->n_bitrates; i++) |
| 3799 | if (rate_supported(sta, sband->band, i)) |
| 3800 | return i; |
| 3801 | |
| 3802 | /* warn when we cannot find a rate. */ |
Johannes Berg | 54d5026 | 2011-11-04 18:07:43 +0100 | [diff] [blame] | 3803 | WARN_ON_ONCE(1); |
Johannes Berg | 4b7679a | 2008-09-18 18:14:18 +0200 | [diff] [blame] | 3804 | |
Johannes Berg | 54d5026 | 2011-11-04 18:07:43 +0100 | [diff] [blame] | 3805 | /* and return 0 (the lowest index) */ |
Johannes Berg | 4b7679a | 2008-09-18 18:14:18 +0200 | [diff] [blame] | 3806 | return 0; |
| 3807 | } |
| 3808 | |
Luis R. Rodriguez | b770b43 | 2009-07-16 10:15:09 -0700 | [diff] [blame] | 3809 | static inline |
| 3810 | bool rate_usable_index_exists(struct ieee80211_supported_band *sband, |
| 3811 | struct ieee80211_sta *sta) |
| 3812 | { |
| 3813 | unsigned int i; |
| 3814 | |
| 3815 | for (i = 0; i < sband->n_bitrates; i++) |
| 3816 | if (rate_supported(sta, sband->band, i)) |
| 3817 | return true; |
| 3818 | return false; |
| 3819 | } |
Johannes Berg | 4b7679a | 2008-09-18 18:14:18 +0200 | [diff] [blame] | 3820 | |
| 3821 | int ieee80211_rate_control_register(struct rate_control_ops *ops); |
| 3822 | void ieee80211_rate_control_unregister(struct rate_control_ops *ops); |
| 3823 | |
Luis R. Rodriguez | 10c806b | 2008-12-23 15:58:36 -0800 | [diff] [blame] | 3824 | static inline bool |
| 3825 | conf_is_ht20(struct ieee80211_conf *conf) |
| 3826 | { |
Johannes Berg | 4797938 | 2009-01-07 10:13:27 +0100 | [diff] [blame] | 3827 | return conf->channel_type == NL80211_CHAN_HT20; |
Luis R. Rodriguez | 10c806b | 2008-12-23 15:58:36 -0800 | [diff] [blame] | 3828 | } |
| 3829 | |
| 3830 | static inline bool |
| 3831 | conf_is_ht40_minus(struct ieee80211_conf *conf) |
| 3832 | { |
Johannes Berg | 4797938 | 2009-01-07 10:13:27 +0100 | [diff] [blame] | 3833 | return conf->channel_type == NL80211_CHAN_HT40MINUS; |
Luis R. Rodriguez | 10c806b | 2008-12-23 15:58:36 -0800 | [diff] [blame] | 3834 | } |
| 3835 | |
| 3836 | static inline bool |
| 3837 | conf_is_ht40_plus(struct ieee80211_conf *conf) |
| 3838 | { |
Johannes Berg | 4797938 | 2009-01-07 10:13:27 +0100 | [diff] [blame] | 3839 | return conf->channel_type == NL80211_CHAN_HT40PLUS; |
Luis R. Rodriguez | 10c806b | 2008-12-23 15:58:36 -0800 | [diff] [blame] | 3840 | } |
| 3841 | |
| 3842 | static inline bool |
| 3843 | conf_is_ht40(struct ieee80211_conf *conf) |
| 3844 | { |
| 3845 | return conf_is_ht40_minus(conf) || conf_is_ht40_plus(conf); |
| 3846 | } |
| 3847 | |
| 3848 | static inline bool |
| 3849 | conf_is_ht(struct ieee80211_conf *conf) |
| 3850 | { |
Johannes Berg | 4797938 | 2009-01-07 10:13:27 +0100 | [diff] [blame] | 3851 | return conf->channel_type != NL80211_CHAN_NO_HT; |
Luis R. Rodriguez | 10c806b | 2008-12-23 15:58:36 -0800 | [diff] [blame] | 3852 | } |
| 3853 | |
Johannes Berg | 2ca27bc | 2010-09-16 14:58:23 +0200 | [diff] [blame] | 3854 | static inline enum nl80211_iftype |
| 3855 | ieee80211_iftype_p2p(enum nl80211_iftype type, bool p2p) |
| 3856 | { |
| 3857 | if (p2p) { |
| 3858 | switch (type) { |
| 3859 | case NL80211_IFTYPE_STATION: |
| 3860 | return NL80211_IFTYPE_P2P_CLIENT; |
| 3861 | case NL80211_IFTYPE_AP: |
| 3862 | return NL80211_IFTYPE_P2P_GO; |
| 3863 | default: |
| 3864 | break; |
| 3865 | } |
| 3866 | } |
| 3867 | return type; |
| 3868 | } |
| 3869 | |
| 3870 | static inline enum nl80211_iftype |
| 3871 | ieee80211_vif_type_p2p(struct ieee80211_vif *vif) |
| 3872 | { |
| 3873 | return ieee80211_iftype_p2p(vif->type, vif->p2p); |
| 3874 | } |
| 3875 | |
Meenakshi Venkataraman | 615f7b9 | 2011-07-08 08:46:22 -0700 | [diff] [blame] | 3876 | void ieee80211_enable_rssi_reports(struct ieee80211_vif *vif, |
| 3877 | int rssi_min_thold, |
| 3878 | int rssi_max_thold); |
| 3879 | |
| 3880 | void ieee80211_disable_rssi_reports(struct ieee80211_vif *vif); |
Arik Nemtsov | 768db34 | 2011-09-28 14:12:51 +0300 | [diff] [blame] | 3881 | |
Wey-Yi Guy | 0d8a0a1 | 2012-04-20 11:57:00 -0700 | [diff] [blame] | 3882 | /** |
| 3883 | * ieee80211_ave_rssi - report the average rssi for the specified interface |
| 3884 | * |
| 3885 | * @vif: the specified virtual interface |
| 3886 | * |
| 3887 | * This function return the average rssi value for the requested interface. |
| 3888 | * It assumes that the given vif is valid. |
| 3889 | */ |
Wey-Yi Guy | 1dae27f | 2012-04-13 12:02:57 -0700 | [diff] [blame] | 3890 | int ieee80211_ave_rssi(struct ieee80211_vif *vif); |
| 3891 | |
Jiri Benc | f0706e8 | 2007-05-05 11:45:53 -0700 | [diff] [blame] | 3892 | #endif /* MAC80211_H */ |