linux/drivers/net/wireless/intel/iwlwifi/fw/api/mac.h
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   1/******************************************************************************
   2 *
   3 * This file is provided under a dual BSD/GPLv2 license.  When using or
   4 * redistributing this file, you may do so under either license.
   5 *
   6 * GPL LICENSE SUMMARY
   7 *
   8 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
   9 * Copyright(c) 2017        Intel Deutschland GmbH
  10 *
  11 * This program is free software; you can redistribute it and/or modify
  12 * it under the terms of version 2 of the GNU General Public License as
  13 * published by the Free Software Foundation.
  14 *
  15 * This program is distributed in the hope that it will be useful, but
  16 * WITHOUT ANY WARRANTY; without even the implied warranty of
  17 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  18 * General Public License for more details.
  19 *
  20 * The full GNU General Public License is included in this distribution
  21 * in the file called COPYING.
  22 *
  23 * Contact Information:
  24 *  Intel Linux Wireless <linuxwifi@intel.com>
  25 * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
  26 *
  27 * BSD LICENSE
  28 *
  29 * Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
  30 * Copyright(c) 2017        Intel Deutschland GmbH
  31 * All rights reserved.
  32 *
  33 * Redistribution and use in source and binary forms, with or without
  34 * modification, are permitted provided that the following conditions
  35 * are met:
  36 *
  37 *  * Redistributions of source code must retain the above copyright
  38 *    notice, this list of conditions and the following disclaimer.
  39 *  * Redistributions in binary form must reproduce the above copyright
  40 *    notice, this list of conditions and the following disclaimer in
  41 *    the documentation and/or other materials provided with the
  42 *    distribution.
  43 *  * Neither the name Intel Corporation nor the names of its
  44 *    contributors may be used to endorse or promote products derived
  45 *    from this software without specific prior written permission.
  46 *
  47 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
  48 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
  49 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
  50 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
  51 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
  52 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
  53 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  54 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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  56 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  57 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  58 *****************************************************************************/
  59
  60#ifndef __iwl_fw_api_mac_h__
  61#define __iwl_fw_api_mac_h__
  62
  63/*
  64 * The first MAC indices (starting from 0) are available to the driver,
  65 * AUX indices follows - 1 for non-CDB, 2 for CDB.
  66 */
  67#define MAC_INDEX_AUX           4
  68#define MAC_INDEX_MIN_DRIVER    0
  69#define NUM_MAC_INDEX_DRIVER    MAC_INDEX_AUX
  70#define NUM_MAC_INDEX           (NUM_MAC_INDEX_DRIVER + 1)
  71#define NUM_MAC_INDEX_CDB       (NUM_MAC_INDEX_DRIVER + 2)
  72
  73#define IWL_MVM_STATION_COUNT           16
  74#define IWL_MVM_INVALID_STA             0xFF
  75
  76enum iwl_ac {
  77        AC_BK,
  78        AC_BE,
  79        AC_VI,
  80        AC_VO,
  81        AC_NUM,
  82};
  83
  84/**
  85 * enum iwl_mac_protection_flags - MAC context flags
  86 * @MAC_PROT_FLG_TGG_PROTECT: 11g protection when transmitting OFDM frames,
  87 *      this will require CCK RTS/CTS2self.
  88 *      RTS/CTS will protect full burst time.
  89 * @MAC_PROT_FLG_HT_PROT: enable HT protection
  90 * @MAC_PROT_FLG_FAT_PROT: protect 40 MHz transmissions
  91 * @MAC_PROT_FLG_SELF_CTS_EN: allow CTS2self
  92 */
  93enum iwl_mac_protection_flags {
  94        MAC_PROT_FLG_TGG_PROTECT        = BIT(3),
  95        MAC_PROT_FLG_HT_PROT            = BIT(23),
  96        MAC_PROT_FLG_FAT_PROT           = BIT(24),
  97        MAC_PROT_FLG_SELF_CTS_EN        = BIT(30),
  98};
  99
 100#define MAC_FLG_SHORT_SLOT              BIT(4)
 101#define MAC_FLG_SHORT_PREAMBLE          BIT(5)
 102
 103/**
 104 * enum iwl_mac_types - Supported MAC types
 105 * @FW_MAC_TYPE_FIRST: lowest supported MAC type
 106 * @FW_MAC_TYPE_AUX: Auxiliary MAC (internal)
 107 * @FW_MAC_TYPE_LISTENER: monitor MAC type (?)
 108 * @FW_MAC_TYPE_PIBSS: Pseudo-IBSS
 109 * @FW_MAC_TYPE_IBSS: IBSS
 110 * @FW_MAC_TYPE_BSS_STA: BSS (managed) station
 111 * @FW_MAC_TYPE_P2P_DEVICE: P2P Device
 112 * @FW_MAC_TYPE_P2P_STA: P2P client
 113 * @FW_MAC_TYPE_GO: P2P GO
 114 * @FW_MAC_TYPE_TEST: ?
 115 * @FW_MAC_TYPE_MAX: highest support MAC type
 116 */
 117enum iwl_mac_types {
 118        FW_MAC_TYPE_FIRST = 1,
 119        FW_MAC_TYPE_AUX = FW_MAC_TYPE_FIRST,
 120        FW_MAC_TYPE_LISTENER,
 121        FW_MAC_TYPE_PIBSS,
 122        FW_MAC_TYPE_IBSS,
 123        FW_MAC_TYPE_BSS_STA,
 124        FW_MAC_TYPE_P2P_DEVICE,
 125        FW_MAC_TYPE_P2P_STA,
 126        FW_MAC_TYPE_GO,
 127        FW_MAC_TYPE_TEST,
 128        FW_MAC_TYPE_MAX = FW_MAC_TYPE_TEST
 129}; /* MAC_CONTEXT_TYPE_API_E_VER_1 */
 130
 131/**
 132 * enum iwl_tsf_id - TSF hw timer ID
 133 * @TSF_ID_A: use TSF A
 134 * @TSF_ID_B: use TSF B
 135 * @TSF_ID_C: use TSF C
 136 * @TSF_ID_D: use TSF D
 137 * @NUM_TSF_IDS: number of TSF timers available
 138 */
 139enum iwl_tsf_id {
 140        TSF_ID_A = 0,
 141        TSF_ID_B = 1,
 142        TSF_ID_C = 2,
 143        TSF_ID_D = 3,
 144        NUM_TSF_IDS = 4,
 145}; /* TSF_ID_API_E_VER_1 */
 146
 147/**
 148 * struct iwl_mac_data_ap - configuration data for AP MAC context
 149 * @beacon_time: beacon transmit time in system time
 150 * @beacon_tsf: beacon transmit time in TSF
 151 * @bi: beacon interval in TU
 152 * @bi_reciprocal: 2^32 / bi
 153 * @dtim_interval: dtim transmit time in TU
 154 * @dtim_reciprocal: 2^32 / dtim_interval
 155 * @mcast_qid: queue ID for multicast traffic.
 156 *      NOTE: obsolete from VER2 and on
 157 * @beacon_template: beacon template ID
 158 */
 159struct iwl_mac_data_ap {
 160        __le32 beacon_time;
 161        __le64 beacon_tsf;
 162        __le32 bi;
 163        __le32 bi_reciprocal;
 164        __le32 dtim_interval;
 165        __le32 dtim_reciprocal;
 166        __le32 mcast_qid;
 167        __le32 beacon_template;
 168} __packed; /* AP_MAC_DATA_API_S_VER_2 */
 169
 170/**
 171 * struct iwl_mac_data_ibss - configuration data for IBSS MAC context
 172 * @beacon_time: beacon transmit time in system time
 173 * @beacon_tsf: beacon transmit time in TSF
 174 * @bi: beacon interval in TU
 175 * @bi_reciprocal: 2^32 / bi
 176 * @beacon_template: beacon template ID
 177 */
 178struct iwl_mac_data_ibss {
 179        __le32 beacon_time;
 180        __le64 beacon_tsf;
 181        __le32 bi;
 182        __le32 bi_reciprocal;
 183        __le32 beacon_template;
 184} __packed; /* IBSS_MAC_DATA_API_S_VER_1 */
 185
 186/**
 187 * struct iwl_mac_data_sta - configuration data for station MAC context
 188 * @is_assoc: 1 for associated state, 0 otherwise
 189 * @dtim_time: DTIM arrival time in system time
 190 * @dtim_tsf: DTIM arrival time in TSF
 191 * @bi: beacon interval in TU, applicable only when associated
 192 * @bi_reciprocal: 2^32 / bi , applicable only when associated
 193 * @dtim_interval: DTIM interval in TU, applicable only when associated
 194 * @dtim_reciprocal: 2^32 / dtim_interval , applicable only when associated
 195 * @listen_interval: in beacon intervals, applicable only when associated
 196 * @assoc_id: unique ID assigned by the AP during association
 197 * @assoc_beacon_arrive_time: TSF of first beacon after association
 198 */
 199struct iwl_mac_data_sta {
 200        __le32 is_assoc;
 201        __le32 dtim_time;
 202        __le64 dtim_tsf;
 203        __le32 bi;
 204        __le32 bi_reciprocal;
 205        __le32 dtim_interval;
 206        __le32 dtim_reciprocal;
 207        __le32 listen_interval;
 208        __le32 assoc_id;
 209        __le32 assoc_beacon_arrive_time;
 210} __packed; /* STA_MAC_DATA_API_S_VER_1 */
 211
 212/**
 213 * struct iwl_mac_data_go - configuration data for P2P GO MAC context
 214 * @ap: iwl_mac_data_ap struct with most config data
 215 * @ctwin: client traffic window in TU (period after TBTT when GO is present).
 216 *      0 indicates that there is no CT window.
 217 * @opp_ps_enabled: indicate that opportunistic PS allowed
 218 */
 219struct iwl_mac_data_go {
 220        struct iwl_mac_data_ap ap;
 221        __le32 ctwin;
 222        __le32 opp_ps_enabled;
 223} __packed; /* GO_MAC_DATA_API_S_VER_1 */
 224
 225/**
 226 * struct iwl_mac_data_p2p_sta - configuration data for P2P client MAC context
 227 * @sta: iwl_mac_data_sta struct with most config data
 228 * @ctwin: client traffic window in TU (period after TBTT when GO is present).
 229 *      0 indicates that there is no CT window.
 230 */
 231struct iwl_mac_data_p2p_sta {
 232        struct iwl_mac_data_sta sta;
 233        __le32 ctwin;
 234} __packed; /* P2P_STA_MAC_DATA_API_S_VER_1 */
 235
 236/**
 237 * struct iwl_mac_data_pibss - Pseudo IBSS config data
 238 * @stats_interval: interval in TU between statistics notifications to host.
 239 */
 240struct iwl_mac_data_pibss {
 241        __le32 stats_interval;
 242} __packed; /* PIBSS_MAC_DATA_API_S_VER_1 */
 243
 244/*
 245 * struct iwl_mac_data_p2p_dev - configuration data for the P2P Device MAC
 246 * context.
 247 * @is_disc_extended: if set to true, P2P Device discoverability is enabled on
 248 *      other channels as well. This should be to true only in case that the
 249 *      device is discoverable and there is an active GO. Note that setting this
 250 *      field when not needed, will increase the number of interrupts and have
 251 *      effect on the platform power, as this setting opens the Rx filters on
 252 *      all macs.
 253 */
 254struct iwl_mac_data_p2p_dev {
 255        __le32 is_disc_extended;
 256} __packed; /* _P2P_DEV_MAC_DATA_API_S_VER_1 */
 257
 258/**
 259 * enum iwl_mac_filter_flags - MAC context filter flags
 260 * @MAC_FILTER_IN_PROMISC: accept all data frames
 261 * @MAC_FILTER_IN_CONTROL_AND_MGMT: pass all management and
 262 *      control frames to the host
 263 * @MAC_FILTER_ACCEPT_GRP: accept multicast frames
 264 * @MAC_FILTER_DIS_DECRYPT: don't decrypt unicast frames
 265 * @MAC_FILTER_DIS_GRP_DECRYPT: don't decrypt multicast frames
 266 * @MAC_FILTER_IN_BEACON: transfer foreign BSS's beacons to host
 267 *      (in station mode when associated)
 268 * @MAC_FILTER_OUT_BCAST: filter out all broadcast frames
 269 * @MAC_FILTER_IN_CRC32: extract FCS and append it to frames
 270 * @MAC_FILTER_IN_PROBE_REQUEST: pass probe requests to host
 271 */
 272enum iwl_mac_filter_flags {
 273        MAC_FILTER_IN_PROMISC           = BIT(0),
 274        MAC_FILTER_IN_CONTROL_AND_MGMT  = BIT(1),
 275        MAC_FILTER_ACCEPT_GRP           = BIT(2),
 276        MAC_FILTER_DIS_DECRYPT          = BIT(3),
 277        MAC_FILTER_DIS_GRP_DECRYPT      = BIT(4),
 278        MAC_FILTER_IN_BEACON            = BIT(6),
 279        MAC_FILTER_OUT_BCAST            = BIT(8),
 280        MAC_FILTER_IN_CRC32             = BIT(11),
 281        MAC_FILTER_IN_PROBE_REQUEST     = BIT(12),
 282};
 283
 284/**
 285 * enum iwl_mac_qos_flags - QoS flags
 286 * @MAC_QOS_FLG_UPDATE_EDCA: ?
 287 * @MAC_QOS_FLG_TGN: HT is enabled
 288 * @MAC_QOS_FLG_TXOP_TYPE: ?
 289 *
 290 */
 291enum iwl_mac_qos_flags {
 292        MAC_QOS_FLG_UPDATE_EDCA = BIT(0),
 293        MAC_QOS_FLG_TGN         = BIT(1),
 294        MAC_QOS_FLG_TXOP_TYPE   = BIT(4),
 295};
 296
 297/**
 298 * struct iwl_ac_qos - QOS timing params for MAC_CONTEXT_CMD
 299 * @cw_min: Contention window, start value in numbers of slots.
 300 *      Should be a power-of-2, minus 1.  Device's default is 0x0f.
 301 * @cw_max: Contention window, max value in numbers of slots.
 302 *      Should be a power-of-2, minus 1.  Device's default is 0x3f.
 303 * @aifsn:  Number of slots in Arbitration Interframe Space (before
 304 *      performing random backoff timing prior to Tx).  Device default 1.
 305 * @fifos_mask: FIFOs used by this MAC for this AC
 306 * @edca_txop:  Length of Tx opportunity, in uSecs.  Device default is 0.
 307 *
 308 * One instance of this config struct for each of 4 EDCA access categories
 309 * in struct iwl_qosparam_cmd.
 310 *
 311 * Device will automatically increase contention window by (2*CW) + 1 for each
 312 * transmission retry.  Device uses cw_max as a bit mask, ANDed with new CW
 313 * value, to cap the CW value.
 314 */
 315struct iwl_ac_qos {
 316        __le16 cw_min;
 317        __le16 cw_max;
 318        u8 aifsn;
 319        u8 fifos_mask;
 320        __le16 edca_txop;
 321} __packed; /* AC_QOS_API_S_VER_2 */
 322
 323/**
 324 * struct iwl_mac_ctx_cmd - command structure to configure MAC contexts
 325 * ( MAC_CONTEXT_CMD = 0x28 )
 326 * @id_and_color: ID and color of the MAC
 327 * @action: action to perform, one of FW_CTXT_ACTION_*
 328 * @mac_type: one of &enum iwl_mac_types
 329 * @tsf_id: TSF HW timer, one of &enum iwl_tsf_id
 330 * @node_addr: MAC address
 331 * @reserved_for_node_addr: reserved
 332 * @bssid_addr: BSSID
 333 * @reserved_for_bssid_addr: reserved
 334 * @cck_rates: basic rates available for CCK
 335 * @ofdm_rates: basic rates available for OFDM
 336 * @protection_flags: combination of &enum iwl_mac_protection_flags
 337 * @cck_short_preamble: 0x20 for enabling short preamble, 0 otherwise
 338 * @short_slot: 0x10 for enabling short slots, 0 otherwise
 339 * @filter_flags: combination of &enum iwl_mac_filter_flags
 340 * @qos_flags: from &enum iwl_mac_qos_flags
 341 * @ac: one iwl_mac_qos configuration for each AC
 342 */
 343struct iwl_mac_ctx_cmd {
 344        /* COMMON_INDEX_HDR_API_S_VER_1 */
 345        __le32 id_and_color;
 346        __le32 action;
 347        /* MAC_CONTEXT_COMMON_DATA_API_S_VER_1 */
 348        __le32 mac_type;
 349        __le32 tsf_id;
 350        u8 node_addr[6];
 351        __le16 reserved_for_node_addr;
 352        u8 bssid_addr[6];
 353        __le16 reserved_for_bssid_addr;
 354        __le32 cck_rates;
 355        __le32 ofdm_rates;
 356        __le32 protection_flags;
 357        __le32 cck_short_preamble;
 358        __le32 short_slot;
 359        __le32 filter_flags;
 360        /* MAC_QOS_PARAM_API_S_VER_1 */
 361        __le32 qos_flags;
 362        struct iwl_ac_qos ac[AC_NUM+1];
 363        /* MAC_CONTEXT_COMMON_DATA_API_S */
 364        union {
 365                struct iwl_mac_data_ap ap;
 366                struct iwl_mac_data_go go;
 367                struct iwl_mac_data_sta sta;
 368                struct iwl_mac_data_p2p_sta p2p_sta;
 369                struct iwl_mac_data_p2p_dev p2p_dev;
 370                struct iwl_mac_data_pibss pibss;
 371                struct iwl_mac_data_ibss ibss;
 372        };
 373} __packed; /* MAC_CONTEXT_CMD_API_S_VER_1 */
 374
 375static inline u32 iwl_mvm_reciprocal(u32 v)
 376{
 377        if (!v)
 378                return 0;
 379        return 0xFFFFFFFF / v;
 380}
 381
 382#define IWL_NONQOS_SEQ_GET      0x1
 383#define IWL_NONQOS_SEQ_SET      0x2
 384struct iwl_nonqos_seq_query_cmd {
 385        __le32 get_set_flag;
 386        __le32 mac_id_n_color;
 387        __le16 value;
 388        __le16 reserved;
 389} __packed; /* NON_QOS_TX_COUNTER_GET_SET_API_S_VER_1 */
 390
 391/**
 392 * struct iwl_missed_beacons_notif - information on missed beacons
 393 * ( MISSED_BEACONS_NOTIFICATION = 0xa2 )
 394 * @mac_id: interface ID
 395 * @consec_missed_beacons_since_last_rx: number of consecutive missed
 396 *      beacons since last RX.
 397 * @consec_missed_beacons: number of consecutive missed beacons
 398 * @num_expected_beacons: number of expected beacons
 399 * @num_recvd_beacons: number of received beacons
 400 */
 401struct iwl_missed_beacons_notif {
 402        __le32 mac_id;
 403        __le32 consec_missed_beacons_since_last_rx;
 404        __le32 consec_missed_beacons;
 405        __le32 num_expected_beacons;
 406        __le32 num_recvd_beacons;
 407} __packed; /* MISSED_BEACON_NTFY_API_S_VER_3 */
 408
 409#endif /* __iwl_fw_api_mac_h__ */
 410