sdk/banjo/ddk.hw.wlan.ieee80211/ieee80211.banjo

// Copyright 2019 The Fuchsia Authors. All rights reserved.
// Use of this source code is governed by a BSD-style license that can be found
// in the LICENSE file.

library ddk.hw.wlan.ieee80211;

/// This header contains structs and enums derived from the IEEE 802.11
/// specification, in particular IEEE Std 802.11-2016. Accordingly:
///
/// * All uses of declarations from 802.11-2016 should be placed in this file.
/// * This file should not contain anything that is not explicitly defined in
///   802.11-2016.

/// IEEE Std 802.11-2016, 9.4.2.2
const uint32 IEEE80211_SSID_LEN_MAX = 32;

/// IEEE Std 802.11-2016, 9.2.4.5
const uint32 IEEE80211_TIDS_MAX = 16;

/// IEEE Std 802.11-2016 12.5.3.2
const uint32 IEEE80211_CCMP_HDR_LEN = 8;
const uint32 IEEE80211_CCMP_PN_LEN = 6;
const uint32 IEEE80211_CCMP_128_MIC_LEN = 8;
const uint32 IEEE80211_CCMP_256_MIC_LEN = 16;

/// Bitfields in the HT Capabilities element "Supported MCS Set" field. These
/// are approximately as defined in 9.4.2.56.4.
[Packed]
struct Ieee80211HtCapabilitiesSupportedMcsSetFields {
    uint64 rx_mcs_head;
    uint32 rx_mcs_tail;
    uint32 tx_mcs;
};

[Packed]
union Ieee80211HtCapabilitiesSupportedMcsSet {
    array<uint8>:16 bytes;
    Ieee80211HtCapabilitiesSupportedMcsSetFields fields;
};

/// The HT capabilities element, as defined in 9.4.2.56.
[Packed]
struct Ieee80211HtCapabilities {
    uint16 ht_capability_info;
    uint8 ampdu_params;
    Ieee80211HtCapabilitiesSupportedMcsSet supported_mcs_set;
    uint16 ht_ext_capabilities;
    uint32 tx_beamforming_capabilities;
    uint8 asel_capabilities;
};

/// The VHT capabilities element, as defined in 9.4.2.158.
[Packed]
struct Ieee80211VhtCapabilities {
    uint32 vht_capability_info;
    uint64 supported_vht_mcs_and_nss_set;
};