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1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 77 78 79 80 81 82 83 84 85 86 87 88 89 90 91 92 93 94 95 96 97 98 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 | // SPDX-License-Identifier: ISC /* Copyright (C) 2023 MediaTek Inc. */ #include "mt76_connac.h" #include "mt76_connac3_mac.h" #include "dma.h" #define HE_BITS(f) cpu_to_le16(IEEE80211_RADIOTAP_HE_##f) #define HE_PREP(f, m, v) le16_encode_bits(le32_get_bits(v, MT_CRXV_HE_##m),\ IEEE80211_RADIOTAP_HE_##f) static void mt76_connac3_mac_decode_he_radiotap_ru(struct mt76_rx_status *status, struct ieee80211_radiotap_he *he, __le32 *rxv) { u32 ru = le32_get_bits(rxv[0], MT_PRXV_HE_RU_ALLOC), offs = 0; status->bw = RATE_INFO_BW_HE_RU; switch (ru) { case 0 ... 36: status->he_ru = NL80211_RATE_INFO_HE_RU_ALLOC_26; offs = ru; break; case 37 ... 52: status->he_ru = NL80211_RATE_INFO_HE_RU_ALLOC_52; offs = ru - 37; break; case 53 ... 60: status->he_ru = NL80211_RATE_INFO_HE_RU_ALLOC_106; offs = ru - 53; break; case 61 ... 64: status->he_ru = NL80211_RATE_INFO_HE_RU_ALLOC_242; offs = ru - 61; break; case 65 ... 66: status->he_ru = NL80211_RATE_INFO_HE_RU_ALLOC_484; offs = ru - 65; break; case 67: status->he_ru = NL80211_RATE_INFO_HE_RU_ALLOC_996; break; case 68: status->he_ru = NL80211_RATE_INFO_HE_RU_ALLOC_2x996; break; } he->data1 |= HE_BITS(DATA1_BW_RU_ALLOC_KNOWN); he->data2 |= HE_BITS(DATA2_RU_OFFSET_KNOWN) | le16_encode_bits(offs, IEEE80211_RADIOTAP_HE_DATA2_RU_OFFSET); } #define MU_PREP(f, v) le16_encode_bits(v, IEEE80211_RADIOTAP_HE_MU_##f) static void mt76_connac3_mac_decode_he_mu_radiotap(struct sk_buff *skb, __le32 *rxv) { struct mt76_rx_status *status = (struct mt76_rx_status *)skb->cb; static const struct ieee80211_radiotap_he_mu mu_known = { .flags1 = HE_BITS(MU_FLAGS1_SIG_B_MCS_KNOWN) | HE_BITS(MU_FLAGS1_SIG_B_DCM_KNOWN) | HE_BITS(MU_FLAGS1_CH1_RU_KNOWN) | HE_BITS(MU_FLAGS1_SIG_B_SYMS_USERS_KNOWN), .flags2 = HE_BITS(MU_FLAGS2_BW_FROM_SIG_A_BW_KNOWN), }; struct ieee80211_radiotap_he_mu *he_mu; status->flag |= RX_FLAG_RADIOTAP_HE_MU; he_mu = skb_push(skb, sizeof(mu_known)); memcpy(he_mu, &mu_known, sizeof(mu_known)); he_mu->flags1 |= MU_PREP(FLAGS1_SIG_B_MCS, status->rate_idx); if (status->he_dcm) he_mu->flags1 |= MU_PREP(FLAGS1_SIG_B_DCM, status->he_dcm); he_mu->flags2 |= MU_PREP(FLAGS2_BW_FROM_SIG_A_BW, status->bw) | MU_PREP(FLAGS2_SIG_B_SYMS_USERS, le32_get_bits(rxv[4], MT_CRXV_HE_NUM_USER)); he_mu->ru_ch1[0] = le32_get_bits(rxv[16], MT_CRXV_HE_RU0) & 0xff; if (status->bw >= RATE_INFO_BW_40) { he_mu->flags1 |= HE_BITS(MU_FLAGS1_CH2_RU_KNOWN); he_mu->ru_ch2[0] = le32_get_bits(rxv[16], MT_CRXV_HE_RU1) & 0xff; } if (status->bw >= RATE_INFO_BW_80) { u32 ru_h, ru_l; he_mu->ru_ch1[1] = le32_get_bits(rxv[16], MT_CRXV_HE_RU2) & 0xff; ru_l = le32_get_bits(rxv[16], MT_CRXV_HE_RU3_L); ru_h = le32_get_bits(rxv[17], MT_CRXV_HE_RU3_H) & 0x7; he_mu->ru_ch2[1] = (u8)(ru_l | ru_h << 4); } } void mt76_connac3_mac_decode_he_radiotap(struct sk_buff *skb, __le32 *rxv, u8 mode) { struct mt76_rx_status *status = (struct mt76_rx_status *)skb->cb; static const struct ieee80211_radiotap_he known = { .data1 = HE_BITS(DATA1_DATA_MCS_KNOWN) | HE_BITS(DATA1_DATA_DCM_KNOWN) | HE_BITS(DATA1_STBC_KNOWN) | HE_BITS(DATA1_CODING_KNOWN) | HE_BITS(DATA1_LDPC_XSYMSEG_KNOWN) | HE_BITS(DATA1_DOPPLER_KNOWN) | HE_BITS(DATA1_SPTL_REUSE_KNOWN) | HE_BITS(DATA1_BSS_COLOR_KNOWN), .data2 = HE_BITS(DATA2_GI_KNOWN) | HE_BITS(DATA2_TXBF_KNOWN) | HE_BITS(DATA2_PE_DISAMBIG_KNOWN) | HE_BITS(DATA2_TXOP_KNOWN), }; u32 ltf_size = le32_get_bits(rxv[4], MT_CRXV_HE_LTF_SIZE) + 1; struct ieee80211_radiotap_he *he; status->flag |= RX_FLAG_RADIOTAP_HE; he = skb_push(skb, sizeof(known)); memcpy(he, &known, sizeof(known)); he->data3 = HE_PREP(DATA3_BSS_COLOR, BSS_COLOR, rxv[9]) | HE_PREP(DATA3_LDPC_XSYMSEG, LDPC_EXT_SYM, rxv[4]); he->data4 = HE_PREP(DATA4_SU_MU_SPTL_REUSE, SR_MASK, rxv[13]); he->data5 = HE_PREP(DATA5_PE_DISAMBIG, PE_DISAMBIG, rxv[5]) | le16_encode_bits(ltf_size, IEEE80211_RADIOTAP_HE_DATA5_LTF_SIZE); if (le32_to_cpu(rxv[0]) & MT_PRXV_TXBF) he->data5 |= HE_BITS(DATA5_TXBF); he->data6 = HE_PREP(DATA6_TXOP, TXOP_DUR, rxv[9]) | HE_PREP(DATA6_DOPPLER, DOPPLER, rxv[9]); switch (mode) { case MT_PHY_TYPE_HE_SU: he->data1 |= HE_BITS(DATA1_FORMAT_SU) | HE_BITS(DATA1_UL_DL_KNOWN) | HE_BITS(DATA1_BEAM_CHANGE_KNOWN) | HE_BITS(DATA1_BW_RU_ALLOC_KNOWN); he->data3 |= HE_PREP(DATA3_BEAM_CHANGE, BEAM_CHNG, rxv[8]) | HE_PREP(DATA3_UL_DL, UPLINK, rxv[5]); break; case MT_PHY_TYPE_HE_EXT_SU: he->data1 |= HE_BITS(DATA1_FORMAT_EXT_SU) | HE_BITS(DATA1_UL_DL_KNOWN) | HE_BITS(DATA1_BW_RU_ALLOC_KNOWN); he->data3 |= HE_PREP(DATA3_UL_DL, UPLINK, rxv[5]); break; case MT_PHY_TYPE_HE_MU: he->data1 |= HE_BITS(DATA1_FORMAT_MU) | HE_BITS(DATA1_UL_DL_KNOWN); he->data3 |= HE_PREP(DATA3_UL_DL, UPLINK, rxv[5]); he->data4 |= HE_PREP(DATA4_MU_STA_ID, MU_AID, rxv[8]); mt76_connac3_mac_decode_he_radiotap_ru(status, he, rxv); mt76_connac3_mac_decode_he_mu_radiotap(skb, rxv); break; case MT_PHY_TYPE_HE_TB: he->data1 |= HE_BITS(DATA1_FORMAT_TRIG) | HE_BITS(DATA1_SPTL_REUSE2_KNOWN) | HE_BITS(DATA1_SPTL_REUSE3_KNOWN) | HE_BITS(DATA1_SPTL_REUSE4_KNOWN); he->data4 |= HE_PREP(DATA4_TB_SPTL_REUSE1, SR_MASK, rxv[13]) | HE_PREP(DATA4_TB_SPTL_REUSE2, SR1_MASK, rxv[13]) | HE_PREP(DATA4_TB_SPTL_REUSE3, SR2_MASK, rxv[13]) | HE_PREP(DATA4_TB_SPTL_REUSE4, SR3_MASK, rxv[13]); mt76_connac3_mac_decode_he_radiotap_ru(status, he, rxv); break; default: break; } } EXPORT_SYMBOL_GPL(mt76_connac3_mac_decode_he_radiotap); |