1*5113495bSYour Name 2*5113495bSYour Name /* Copyright (c) 2022, Qualcomm Innovation Center, Inc. All rights reserved. 3*5113495bSYour Name * 4*5113495bSYour Name * Permission to use, copy, modify, and/or distribute this software for any 5*5113495bSYour Name * purpose with or without fee is hereby granted, provided that the above 6*5113495bSYour Name * copyright notice and this permission notice appear in all copies. 7*5113495bSYour Name * 8*5113495bSYour Name * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES 9*5113495bSYour Name * WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF 10*5113495bSYour Name * MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR 11*5113495bSYour Name * ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES 12*5113495bSYour Name * WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN 13*5113495bSYour Name * ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF 14*5113495bSYour Name * OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. 15*5113495bSYour Name */ 16*5113495bSYour Name 17*5113495bSYour Name 18*5113495bSYour Name 19*5113495bSYour Name 20*5113495bSYour Name 21*5113495bSYour Name 22*5113495bSYour Name 23*5113495bSYour Name 24*5113495bSYour Name 25*5113495bSYour Name 26*5113495bSYour Name #ifndef _L_SIG_A_INFO_H_ 27*5113495bSYour Name #define _L_SIG_A_INFO_H_ 28*5113495bSYour Name #if !defined(__ASSEMBLER__) 29*5113495bSYour Name #endif 30*5113495bSYour Name 31*5113495bSYour Name #define NUM_OF_DWORDS_L_SIG_A_INFO 1 32*5113495bSYour Name 33*5113495bSYour Name 34*5113495bSYour Name struct l_sig_a_info { 35*5113495bSYour Name #ifndef WIFI_BIT_ORDER_BIG_ENDIAN 36*5113495bSYour Name uint32_t rate : 4, // [3:0] 37*5113495bSYour Name lsig_reserved : 1, // [4:4] 38*5113495bSYour Name length : 12, // [16:5] 39*5113495bSYour Name parity : 1, // [17:17] 40*5113495bSYour Name tail : 6, // [23:18] 41*5113495bSYour Name pkt_type : 4, // [27:24] 42*5113495bSYour Name captured_implicit_sounding : 1, // [28:28] 43*5113495bSYour Name reserved : 2, // [30:29] 44*5113495bSYour Name rx_integrity_check_passed : 1; // [31:31] 45*5113495bSYour Name #else 46*5113495bSYour Name uint32_t rx_integrity_check_passed : 1, // [31:31] 47*5113495bSYour Name reserved : 2, // [30:29] 48*5113495bSYour Name captured_implicit_sounding : 1, // [28:28] 49*5113495bSYour Name pkt_type : 4, // [27:24] 50*5113495bSYour Name tail : 6, // [23:18] 51*5113495bSYour Name parity : 1, // [17:17] 52*5113495bSYour Name length : 12, // [16:5] 53*5113495bSYour Name lsig_reserved : 1, // [4:4] 54*5113495bSYour Name rate : 4; // [3:0] 55*5113495bSYour Name #endif 56*5113495bSYour Name }; 57*5113495bSYour Name 58*5113495bSYour Name 59*5113495bSYour Name /* Description RATE 60*5113495bSYour Name 61*5113495bSYour Name This format is originally defined for OFDM as a 4 bit field 62*5113495bSYour Name but the 5th bit was added to indicate 11b formatted frames. 63*5113495bSYour Name In the standard bit [4] is specified as reserved. For 64*5113495bSYour Name 11b frames this L-SIG is transformed in the PHY into the 65*5113495bSYour Name 11b preamble format. The following are the rates: 66*5113495bSYour Name <enum 8 ofdm_48_mbps> 64-QAM 2/3 (48 Mbps) 67*5113495bSYour Name <enum 9 ofdm_24_mbps> 16-QAM 1/2 (24 Mbps) 68*5113495bSYour Name <enum 10 ofdm_12_mbps> QPSK 1/2 (12 Mbps) 69*5113495bSYour Name <enum 11 ofdm_6_mbps> BPSK 1/2 (6 Mbps) 70*5113495bSYour Name <enum 12 ofdm_54_mbps> 64-QAM 3/4 (54 Mbps) 71*5113495bSYour Name <enum 13 ofdm_36_mbps> 16-QAM 3/4 (36 Mbps) 72*5113495bSYour Name <enum 14 ofdm_18_mbps> QPSK 1/2 (18 Mbps) 73*5113495bSYour Name <enum 15 ofdm_9_mbps> BPSK 3/4 (9 Mbps) 74*5113495bSYour Name <legal 8-15> 75*5113495bSYour Name */ 76*5113495bSYour Name 77*5113495bSYour Name #define L_SIG_A_INFO_RATE_OFFSET 0x00000000 78*5113495bSYour Name #define L_SIG_A_INFO_RATE_LSB 0 79*5113495bSYour Name #define L_SIG_A_INFO_RATE_MSB 3 80*5113495bSYour Name #define L_SIG_A_INFO_RATE_MASK 0x0000000f 81*5113495bSYour Name 82*5113495bSYour Name 83*5113495bSYour Name /* Description LSIG_RESERVED 84*5113495bSYour Name 85*5113495bSYour Name Reserved: Should be set to 0 by the MAC and ignored by the 86*5113495bSYour Name PHY 87*5113495bSYour Name <legal 0> 88*5113495bSYour Name */ 89*5113495bSYour Name 90*5113495bSYour Name #define L_SIG_A_INFO_LSIG_RESERVED_OFFSET 0x00000000 91*5113495bSYour Name #define L_SIG_A_INFO_LSIG_RESERVED_LSB 4 92*5113495bSYour Name #define L_SIG_A_INFO_LSIG_RESERVED_MSB 4 93*5113495bSYour Name #define L_SIG_A_INFO_LSIG_RESERVED_MASK 0x00000010 94*5113495bSYour Name 95*5113495bSYour Name 96*5113495bSYour Name /* Description LENGTH 97*5113495bSYour Name 98*5113495bSYour Name The length indicates the number of octets in this MPDU. 99*5113495bSYour Name Note that when using mixed mode .11n preamble or .11ac/.11ax/.11ba/.11be 100*5113495bSYour Name this length provides the spoofed length for the PPDU. 101*5113495bSYour Name This length provides part of the information (viz. PPDU 102*5113495bSYour Name duration) to derive the actually PSDU length. For legacy 103*5113495bSYour Name OFDM and 11B frames the maximum length is 4095. 104*5113495bSYour Name <legal all> 105*5113495bSYour Name */ 106*5113495bSYour Name 107*5113495bSYour Name #define L_SIG_A_INFO_LENGTH_OFFSET 0x00000000 108*5113495bSYour Name #define L_SIG_A_INFO_LENGTH_LSB 5 109*5113495bSYour Name #define L_SIG_A_INFO_LENGTH_MSB 16 110*5113495bSYour Name #define L_SIG_A_INFO_LENGTH_MASK 0x0001ffe0 111*5113495bSYour Name 112*5113495bSYour Name 113*5113495bSYour Name /* Description PARITY 114*5113495bSYour Name 115*5113495bSYour Name 11a/n/ac TX: This field provides even parity over the first 116*5113495bSYour Name 18 bits of the signal field which means that the sum of 117*5113495bSYour Name 1s in the signal field will always be even on transmission. 118*5113495bSYour Name The value of the field is computed by the MAC. 119*5113495bSYour Name 11a/n/ac RX: this field contains the received parity field 120*5113495bSYour Name from the L-SIG symbol for the current packet. 121*5113495bSYour Name <legal 0-1> 122*5113495bSYour Name */ 123*5113495bSYour Name 124*5113495bSYour Name #define L_SIG_A_INFO_PARITY_OFFSET 0x00000000 125*5113495bSYour Name #define L_SIG_A_INFO_PARITY_LSB 17 126*5113495bSYour Name #define L_SIG_A_INFO_PARITY_MSB 17 127*5113495bSYour Name #define L_SIG_A_INFO_PARITY_MASK 0x00020000 128*5113495bSYour Name 129*5113495bSYour Name 130*5113495bSYour Name /* Description TAIL 131*5113495bSYour Name 132*5113495bSYour Name The 6 bits of tail is always set to 0 is used to flush the 133*5113495bSYour Name BCC encoder and decoder. <legal 0> 134*5113495bSYour Name */ 135*5113495bSYour Name 136*5113495bSYour Name #define L_SIG_A_INFO_TAIL_OFFSET 0x00000000 137*5113495bSYour Name #define L_SIG_A_INFO_TAIL_LSB 18 138*5113495bSYour Name #define L_SIG_A_INFO_TAIL_MSB 23 139*5113495bSYour Name #define L_SIG_A_INFO_TAIL_MASK 0x00fc0000 140*5113495bSYour Name 141*5113495bSYour Name 142*5113495bSYour Name /* Description PKT_TYPE 143*5113495bSYour Name 144*5113495bSYour Name Only used on the RX side. 145*5113495bSYour Name Note: This is not really part of L-SIG 146*5113495bSYour Name 147*5113495bSYour Name Packet type: 148*5113495bSYour Name <enum 0 dot11a>802.11a PPDU type 149*5113495bSYour Name <enum 1 dot11b>802.11b PPDU type 150*5113495bSYour Name <enum 2 dot11n_mm>802.11n Mixed Mode PPDU type 151*5113495bSYour Name <enum 3 dot11ac>802.11ac PPDU type 152*5113495bSYour Name <enum 4 dot11ax>802.11ax PPDU type 153*5113495bSYour Name <enum 5 dot11ba>802.11ba (WUR) PPDU type 154*5113495bSYour Name <enum 6 dot11be>802.11be PPDU type 155*5113495bSYour Name <enum 7 dot11az>802.11az (ranging) PPDU type 156*5113495bSYour Name <enum 8 dot11n_gf>802.11n Green Field PPDU type (unsupported 157*5113495bSYour Name & aborted) 158*5113495bSYour Name */ 159*5113495bSYour Name 160*5113495bSYour Name #define L_SIG_A_INFO_PKT_TYPE_OFFSET 0x00000000 161*5113495bSYour Name #define L_SIG_A_INFO_PKT_TYPE_LSB 24 162*5113495bSYour Name #define L_SIG_A_INFO_PKT_TYPE_MSB 27 163*5113495bSYour Name #define L_SIG_A_INFO_PKT_TYPE_MASK 0x0f000000 164*5113495bSYour Name 165*5113495bSYour Name 166*5113495bSYour Name /* Description CAPTURED_IMPLICIT_SOUNDING 167*5113495bSYour Name 168*5113495bSYour Name Only used on the RX side. 169*5113495bSYour Name Note: This is not really part of L-SIG 170*5113495bSYour Name 171*5113495bSYour Name This indicates that the PHY has captured implicit sounding. 172*5113495bSYour Name 173*5113495bSYour Name */ 174*5113495bSYour Name 175*5113495bSYour Name #define L_SIG_A_INFO_CAPTURED_IMPLICIT_SOUNDING_OFFSET 0x00000000 176*5113495bSYour Name #define L_SIG_A_INFO_CAPTURED_IMPLICIT_SOUNDING_LSB 28 177*5113495bSYour Name #define L_SIG_A_INFO_CAPTURED_IMPLICIT_SOUNDING_MSB 28 178*5113495bSYour Name #define L_SIG_A_INFO_CAPTURED_IMPLICIT_SOUNDING_MASK 0x10000000 179*5113495bSYour Name 180*5113495bSYour Name 181*5113495bSYour Name /* Description RESERVED 182*5113495bSYour Name 183*5113495bSYour Name Reserved: Should be set to 0 by the transmitting MAC and 184*5113495bSYour Name ignored by the PHY <legal 0> 185*5113495bSYour Name */ 186*5113495bSYour Name 187*5113495bSYour Name #define L_SIG_A_INFO_RESERVED_OFFSET 0x00000000 188*5113495bSYour Name #define L_SIG_A_INFO_RESERVED_LSB 29 189*5113495bSYour Name #define L_SIG_A_INFO_RESERVED_MSB 30 190*5113495bSYour Name #define L_SIG_A_INFO_RESERVED_MASK 0x60000000 191*5113495bSYour Name 192*5113495bSYour Name 193*5113495bSYour Name /* Description RX_INTEGRITY_CHECK_PASSED 194*5113495bSYour Name 195*5113495bSYour Name TX side: Set to 0 196*5113495bSYour Name RX side: Set to 1 if PHY determines the L-SIG integrity 197*5113495bSYour Name check has passed, else set to 0 198*5113495bSYour Name 199*5113495bSYour Name <legal all> 200*5113495bSYour Name */ 201*5113495bSYour Name 202*5113495bSYour Name #define L_SIG_A_INFO_RX_INTEGRITY_CHECK_PASSED_OFFSET 0x00000000 203*5113495bSYour Name #define L_SIG_A_INFO_RX_INTEGRITY_CHECK_PASSED_LSB 31 204*5113495bSYour Name #define L_SIG_A_INFO_RX_INTEGRITY_CHECK_PASSED_MSB 31 205*5113495bSYour Name #define L_SIG_A_INFO_RX_INTEGRITY_CHECK_PASSED_MASK 0x80000000 206*5113495bSYour Name 207*5113495bSYour Name 208*5113495bSYour Name 209*5113495bSYour Name #endif // L_SIG_A_INFO 210