/* * Copyright (c) 2016-2018 The Linux Foundation. All rights reserved. * * Permission to use, copy, modify, and/or distribute this software for * any purpose with or without fee is hereby granted, provided that the * above copyright notice and this permission notice appear in all * copies. * * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR * PERFORMANCE OF THIS SOFTWARE. */ #ifndef _HE_SIG_A_MU_DL_INFO_H_ #define _HE_SIG_A_MU_DL_INFO_H_ #if !defined(__ASSEMBLER__) #endif // ################ START SUMMARY ################# // // Dword Fields // 0 dl_ul_flag[0], mcs_of_sig_b[3:1], dcm_of_sig_b[4], bss_color_id[10:5], spatial_reuse[14:11], transmit_bw[17:15], num_sig_b_symbols[21:18], comp_mode_sig_b[22], cp_ltf_size[24:23], doppler_indication[25], reserved_0a[31:26] // 1 txop_duration[6:0], reserved_1a[7], num_ltf_symbols[10:8], ldpc_extra_symbol[11], stbc[12], packet_extension_a_factor[14:13], packet_extension_pe_disambiguity[15], crc[19:16], tail[25:20], reserved_1b[31:26] // // ################ END SUMMARY ################# #define NUM_OF_DWORDS_HE_SIG_A_MU_DL_INFO 2 struct he_sig_a_mu_dl_info { uint32_t dl_ul_flag : 1, //[0] mcs_of_sig_b : 3, //[3:1] dcm_of_sig_b : 1, //[4] bss_color_id : 6, //[10:5] spatial_reuse : 4, //[14:11] transmit_bw : 3, //[17:15] num_sig_b_symbols : 4, //[21:18] comp_mode_sig_b : 1, //[22] cp_ltf_size : 2, //[24:23] doppler_indication : 1, //[25] reserved_0a : 6; //[31:26] uint32_t txop_duration : 7, //[6:0] reserved_1a : 1, //[7] num_ltf_symbols : 3, //[10:8] ldpc_extra_symbol : 1, //[11] stbc : 1, //[12] packet_extension_a_factor : 2, //[14:13] packet_extension_pe_disambiguity: 1, //[15] crc : 4, //[19:16] tail : 6, //[25:20] reserved_1b : 6; //[31:26] }; /* dl_ul_flag Differentiates between DL and UL transmission mcs_of_sig_b Indicates the MCS of HE-SIG-B dcm_of_sig_b Indicates whether dual sub-carrier modulation is applied to HE-SIG-B 0: No DCM for HE_SIG_B 1: DCM for HE_SIG_B bss_color_id BSS color ID Field Used by MAC HW spatial_reuse Spatial reuse For 20MHz one SR field corresponding to entire 20MHz (other 3 fields indicate identical values) For 40MHz two SR fields for each 20MHz (other 2 fields indicate identical values) For 80MHz four SR fields for each 20MHz For 160MHz four SR fields for each 40MHz transmit_bw Bandwidth of the PPDU. 20 Mhz 40 Mhz 80 Mhz 160 MHz or 80+80 MHz NOTE: Other e-nums might be added for channel bonding On RX side, Field Used by MAC HW num_sig_b_symbols Number of symbols For OFDMA, the actual number of symbols is 1 larger then indicated in this field. For MU-MIMO this is equal to the number of users - 1: the following encoding is used: 1 => 2 users 2 => 3 users Etc. comp_mode_sig_b Indicates the compression mode of HE-SIG-B 0: Regular [uncomp mode] 1: compressed mode (full-BW MU-MIMO only) cp_ltf_size Indicates the CP and HE-LTF type doppler_indication 0: No Doppler support 1: Doppler support reserved_0a txop_duration Indicates the remaining time in the current TXOP Field Used by MAC HW reserved_1a Note: spec indicates this shall be set to 1 num_ltf_symbols Indicates the number of HE-LTF symbols 0: 1 LTF 1: 2 LTFs 2: 4 LTFs 3: 6 LTFs 4: 8 LTFs ldpc_extra_symbol If LDPC, 0: LDPC extra symbol not present 1: LDPC extra symbol present Else Set to 1 stbc Indicates whether STBC is applied 0: No STBC 1: STBC packet_extension_a_factor the packet extension duration of the trigger-based PPDU response with these two bits indicating the a-factor packet_extension_pe_disambiguity the packet extension duration of the trigger-based PPDU response with this bit indicating the PE-Disambiguity crc CRC for HE-SIG-A contents. tail reserved_1b */ /* Description HE_SIG_A_MU_DL_INFO_0_DL_UL_FLAG Differentiates between DL and UL transmission */ #define HE_SIG_A_MU_DL_INFO_0_DL_UL_FLAG_OFFSET 0x00000000 #define HE_SIG_A_MU_DL_INFO_0_DL_UL_FLAG_LSB 0 #define HE_SIG_A_MU_DL_INFO_0_DL_UL_FLAG_MASK 0x00000001 /* Description HE_SIG_A_MU_DL_INFO_0_MCS_OF_SIG_B Indicates the MCS of HE-SIG-B */ #define HE_SIG_A_MU_DL_INFO_0_MCS_OF_SIG_B_OFFSET 0x00000000 #define HE_SIG_A_MU_DL_INFO_0_MCS_OF_SIG_B_LSB 1 #define HE_SIG_A_MU_DL_INFO_0_MCS_OF_SIG_B_MASK 0x0000000e /* Description HE_SIG_A_MU_DL_INFO_0_DCM_OF_SIG_B Indicates whether dual sub-carrier modulation is applied to HE-SIG-B 0: No DCM for HE_SIG_B 1: DCM for HE_SIG_B */ #define HE_SIG_A_MU_DL_INFO_0_DCM_OF_SIG_B_OFFSET 0x00000000 #define HE_SIG_A_MU_DL_INFO_0_DCM_OF_SIG_B_LSB 4 #define HE_SIG_A_MU_DL_INFO_0_DCM_OF_SIG_B_MASK 0x00000010 /* Description HE_SIG_A_MU_DL_INFO_0_BSS_COLOR_ID BSS color ID Field Used by MAC HW */ #define HE_SIG_A_MU_DL_INFO_0_BSS_COLOR_ID_OFFSET 0x00000000 #define HE_SIG_A_MU_DL_INFO_0_BSS_COLOR_ID_LSB 5 #define HE_SIG_A_MU_DL_INFO_0_BSS_COLOR_ID_MASK 0x000007e0 /* Description HE_SIG_A_MU_DL_INFO_0_SPATIAL_REUSE Spatial reuse For 20MHz one SR field corresponding to entire 20MHz (other 3 fields indicate identical values) For 40MHz two SR fields for each 20MHz (other 2 fields indicate identical values) For 80MHz four SR fields for each 20MHz For 160MHz four SR fields for each 40MHz */ #define HE_SIG_A_MU_DL_INFO_0_SPATIAL_REUSE_OFFSET 0x00000000 #define HE_SIG_A_MU_DL_INFO_0_SPATIAL_REUSE_LSB 11 #define HE_SIG_A_MU_DL_INFO_0_SPATIAL_REUSE_MASK 0x00007800 /* Description HE_SIG_A_MU_DL_INFO_0_TRANSMIT_BW Bandwidth of the PPDU. 20 Mhz 40 Mhz 80 Mhz 160 MHz or 80+80 MHz NOTE: Other e-nums might be added for channel bonding On RX side, Field Used by MAC HW */ #define HE_SIG_A_MU_DL_INFO_0_TRANSMIT_BW_OFFSET 0x00000000 #define HE_SIG_A_MU_DL_INFO_0_TRANSMIT_BW_LSB 15 #define HE_SIG_A_MU_DL_INFO_0_TRANSMIT_BW_MASK 0x00038000 /* Description HE_SIG_A_MU_DL_INFO_0_NUM_SIG_B_SYMBOLS Number of symbols For OFDMA, the actual number of symbols is 1 larger then indicated in this field. For MU-MIMO this is equal to the number of users - 1: the following encoding is used: 1 => 2 users 2 => 3 users Etc. */ #define HE_SIG_A_MU_DL_INFO_0_NUM_SIG_B_SYMBOLS_OFFSET 0x00000000 #define HE_SIG_A_MU_DL_INFO_0_NUM_SIG_B_SYMBOLS_LSB 18 #define HE_SIG_A_MU_DL_INFO_0_NUM_SIG_B_SYMBOLS_MASK 0x003c0000 /* Description HE_SIG_A_MU_DL_INFO_0_COMP_MODE_SIG_B Indicates the compression mode of HE-SIG-B 0: Regular [uncomp mode] 1: compressed mode (full-BW MU-MIMO only) */ #define HE_SIG_A_MU_DL_INFO_0_COMP_MODE_SIG_B_OFFSET 0x00000000 #define HE_SIG_A_MU_DL_INFO_0_COMP_MODE_SIG_B_LSB 22 #define HE_SIG_A_MU_DL_INFO_0_COMP_MODE_SIG_B_MASK 0x00400000 /* Description HE_SIG_A_MU_DL_INFO_0_CP_LTF_SIZE Indicates the CP and HE-LTF type */ #define HE_SIG_A_MU_DL_INFO_0_CP_LTF_SIZE_OFFSET 0x00000000 #define HE_SIG_A_MU_DL_INFO_0_CP_LTF_SIZE_LSB 23 #define HE_SIG_A_MU_DL_INFO_0_CP_LTF_SIZE_MASK 0x01800000 /* Description HE_SIG_A_MU_DL_INFO_0_DOPPLER_INDICATION 0: No Doppler support 1: Doppler support */ #define HE_SIG_A_MU_DL_INFO_0_DOPPLER_INDICATION_OFFSET 0x00000000 #define HE_SIG_A_MU_DL_INFO_0_DOPPLER_INDICATION_LSB 25 #define HE_SIG_A_MU_DL_INFO_0_DOPPLER_INDICATION_MASK 0x02000000 /* Description HE_SIG_A_MU_DL_INFO_0_RESERVED_0A */ #define HE_SIG_A_MU_DL_INFO_0_RESERVED_0A_OFFSET 0x00000000 #define HE_SIG_A_MU_DL_INFO_0_RESERVED_0A_LSB 26 #define HE_SIG_A_MU_DL_INFO_0_RESERVED_0A_MASK 0xfc000000 /* Description HE_SIG_A_MU_DL_INFO_1_TXOP_DURATION Indicates the remaining time in the current TXOP Field Used by MAC HW */ #define HE_SIG_A_MU_DL_INFO_1_TXOP_DURATION_OFFSET 0x00000004 #define HE_SIG_A_MU_DL_INFO_1_TXOP_DURATION_LSB 0 #define HE_SIG_A_MU_DL_INFO_1_TXOP_DURATION_MASK 0x0000007f /* Description HE_SIG_A_MU_DL_INFO_1_RESERVED_1A Note: spec indicates this shall be set to 1 */ #define HE_SIG_A_MU_DL_INFO_1_RESERVED_1A_OFFSET 0x00000004 #define HE_SIG_A_MU_DL_INFO_1_RESERVED_1A_LSB 7 #define HE_SIG_A_MU_DL_INFO_1_RESERVED_1A_MASK 0x00000080 /* Description HE_SIG_A_MU_DL_INFO_1_NUM_LTF_SYMBOLS Indicates the number of HE-LTF symbols 0: 1 LTF 1: 2 LTFs 2: 4 LTFs 3: 6 LTFs 4: 8 LTFs */ #define HE_SIG_A_MU_DL_INFO_1_NUM_LTF_SYMBOLS_OFFSET 0x00000004 #define HE_SIG_A_MU_DL_INFO_1_NUM_LTF_SYMBOLS_LSB 8 #define HE_SIG_A_MU_DL_INFO_1_NUM_LTF_SYMBOLS_MASK 0x00000700 /* Description HE_SIG_A_MU_DL_INFO_1_LDPC_EXTRA_SYMBOL If LDPC, 0: LDPC extra symbol not present 1: LDPC extra symbol present Else Set to 1 */ #define HE_SIG_A_MU_DL_INFO_1_LDPC_EXTRA_SYMBOL_OFFSET 0x00000004 #define HE_SIG_A_MU_DL_INFO_1_LDPC_EXTRA_SYMBOL_LSB 11 #define HE_SIG_A_MU_DL_INFO_1_LDPC_EXTRA_SYMBOL_MASK 0x00000800 /* Description HE_SIG_A_MU_DL_INFO_1_STBC Indicates whether STBC is applied 0: No STBC 1: STBC */ #define HE_SIG_A_MU_DL_INFO_1_STBC_OFFSET 0x00000004 #define HE_SIG_A_MU_DL_INFO_1_STBC_LSB 12 #define HE_SIG_A_MU_DL_INFO_1_STBC_MASK 0x00001000 /* Description HE_SIG_A_MU_DL_INFO_1_PACKET_EXTENSION_A_FACTOR the packet extension duration of the trigger-based PPDU response with these two bits indicating the a-factor */ #define HE_SIG_A_MU_DL_INFO_1_PACKET_EXTENSION_A_FACTOR_OFFSET 0x00000004 #define HE_SIG_A_MU_DL_INFO_1_PACKET_EXTENSION_A_FACTOR_LSB 13 #define HE_SIG_A_MU_DL_INFO_1_PACKET_EXTENSION_A_FACTOR_MASK 0x00006000 /* Description HE_SIG_A_MU_DL_INFO_1_PACKET_EXTENSION_PE_DISAMBIGUITY the packet extension duration of the trigger-based PPDU response with this bit indicating the PE-Disambiguity */ #define HE_SIG_A_MU_DL_INFO_1_PACKET_EXTENSION_PE_DISAMBIGUITY_OFFSET 0x00000004 #define HE_SIG_A_MU_DL_INFO_1_PACKET_EXTENSION_PE_DISAMBIGUITY_LSB 15 #define HE_SIG_A_MU_DL_INFO_1_PACKET_EXTENSION_PE_DISAMBIGUITY_MASK 0x00008000 /* Description HE_SIG_A_MU_DL_INFO_1_CRC CRC for HE-SIG-A contents. */ #define HE_SIG_A_MU_DL_INFO_1_CRC_OFFSET 0x00000004 #define HE_SIG_A_MU_DL_INFO_1_CRC_LSB 16 #define HE_SIG_A_MU_DL_INFO_1_CRC_MASK 0x000f0000 /* Description HE_SIG_A_MU_DL_INFO_1_TAIL */ #define HE_SIG_A_MU_DL_INFO_1_TAIL_OFFSET 0x00000004 #define HE_SIG_A_MU_DL_INFO_1_TAIL_LSB 20 #define HE_SIG_A_MU_DL_INFO_1_TAIL_MASK 0x03f00000 /* Description HE_SIG_A_MU_DL_INFO_1_RESERVED_1B */ #define HE_SIG_A_MU_DL_INFO_1_RESERVED_1B_OFFSET 0x00000004 #define HE_SIG_A_MU_DL_INFO_1_RESERVED_1B_LSB 26 #define HE_SIG_A_MU_DL_INFO_1_RESERVED_1B_MASK 0xfc000000 #endif // _HE_SIG_A_MU_DL_INFO_H_