/*
 * Copyright (c) 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 
			
			
			<enum 0 DL_UL_FLAG_IS_DL_OR_TDLS>
			
			<enum 1 DL_UL_FLAG_IS_UL>
			
			NOTE: This is unsupported for HE MU format (including
			MU_SU) Tx in Napier and Hastings80.
			
			<legal all>

mcs_of_sig_b
			
			Indicates the MCS of HE-SIG-B
			
			<legal 0-5>

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
			
			<legal all>

bss_color_id
			
			BSS color ID 
			
			
			Field Used by MAC HW
			
			<legal all>

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
			
			<legal all>

transmit_bw
			
			Bandwidth of the PPDU.
			
			
			<enum 0 HE_SIG_A_MU_DL_BW20> 20 Mhz 
			
			<enum 1 HE_SIG_A_MU_DL_BW40> 40 Mhz 
			
			<enum 2 HE_SIG_A_MU_DL_BW80> 80 Mhz 
			
			<enum 3 HE_SIG_A_MU_DL_BW160> 160 MHz or 80+80 MHz
			
			
			NOTE: Other values to be added for preamble puncturing
			
			
			On RX side, Field Used by MAC HW
			
			<legal 0-3>

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.
			
			
			<legal all>

comp_mode_sig_b
			
			Indicates the compression mode of HE-SIG-B
			
			
			0: Regular [uncomp mode]
			
			1: compressed mode (full-BW MU-MIMO only) 
			
			<legal all>

cp_ltf_size
			
			Indicates the CP and HE-LTF type 
			
			
			<enum 0 MU_FourX_LTF_0_8CP> 4xLTF + 0.8 us CP
			
			<enum 1 MU_TwoX_LTF_0_8CP> 2x LTF + 0.8 µs CP
			
			<enum 2 MU_TwoX_LTF_1_6CP> 2x LTF + 1.6 µs CP
			
			<enum 3 MU_FourX_LTF_3_2CP> 4x LTF + 3.2 µs CP 
			
			
			NOTE: for MU no proprietary modes (for now)
			
			
			<legal all>

doppler_indication
			
			0: No Doppler support
			
			1: Doppler support
			
			<legal all>

reserved_0a
			
			<legal 0>

txop_duration
			
			Indicates the remaining time in the current TXOP
			
			
			Field Used by MAC HW
			
			 <legal all>

reserved_1a
			
			Note: spec indicates this shall be set to 1
			
			<legal 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
			
			
			<legal all>

ldpc_extra_symbol
			
			If LDPC, 
			
			  0: LDPC extra symbol not present
			
			  1: LDPC extra symbol present
			
			Else 
			
			  Set to 1
			
			<legal all>

stbc
			
			Indicates whether STBC is applied
			
			0: No STBC
			
			1: STBC
			
			<legal all>

packet_extension_a_factor
			
			the packet extension duration of the trigger-based PPDU
			response with these two bits indicating the a-factor 
			
			
			<enum 0 a_factor_4>
			
			<enum 1 a_factor_1>
			
			<enum 2 a_factor_2>
			
			<enum 3 a_factor_3>
			
			
			<legal all>

packet_extension_pe_disambiguity
			
			the packet extension duration of the trigger-based PPDU
			response with this bit indicating the PE-Disambiguity 
			
			<legal all>

crc
			
			CRC for HE-SIG-A contents.
			
			<legal all>

tail
			
			<legal 0>

reserved_1b
			
			<legal 0>
*/


/* Description		HE_SIG_A_MU_DL_INFO_0_DL_UL_FLAG
			
			Differentiates between DL and UL transmission 
			
			
			<enum 0 DL_UL_FLAG_IS_DL_OR_TDLS>
			
			<enum 1 DL_UL_FLAG_IS_UL>
			
			NOTE: This is unsupported for HE MU format (including
			MU_SU) Tx in Napier and Hastings80.
			
			<legal all>
*/
#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
			
			<legal 0-5>
*/
#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
			
			<legal all>
*/
#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
			
			<legal all>
*/
#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
			
			<legal all>
*/
#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.
			
			
			<enum 0 HE_SIG_A_MU_DL_BW20> 20 Mhz 
			
			<enum 1 HE_SIG_A_MU_DL_BW40> 40 Mhz 
			
			<enum 2 HE_SIG_A_MU_DL_BW80> 80 Mhz 
			
			<enum 3 HE_SIG_A_MU_DL_BW160> 160 MHz or 80+80 MHz
			
			
			NOTE: Other values to be added for preamble puncturing
			
			
			On RX side, Field Used by MAC HW
			
			<legal 0-3>
*/
#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.
			
			
			<legal all>
*/
#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) 
			
			<legal all>
*/
#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 
			
			
			<enum 0 MU_FourX_LTF_0_8CP> 4xLTF + 0.8 us CP
			
			<enum 1 MU_TwoX_LTF_0_8CP> 2x LTF + 0.8 µs CP
			
			<enum 2 MU_TwoX_LTF_1_6CP> 2x LTF + 1.6 µs CP
			
			<enum 3 MU_FourX_LTF_3_2CP> 4x LTF + 3.2 µs CP 
			
			
			NOTE: for MU no proprietary modes (for now)
			
			
			<legal all>
*/
#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
			
			<legal all>
*/
#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
			
			<legal 0>
*/
#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
			
			 <legal all>
*/
#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
			
			<legal 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
			
			
			<legal all>
*/
#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
			
			<legal all>
*/
#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
			
			<legal all>
*/
#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 
			
			
			<enum 0 a_factor_4>
			
			<enum 1 a_factor_1>
			
			<enum 2 a_factor_2>
			
			<enum 3 a_factor_3>
			
			
			<legal all>
*/
#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 
			
			<legal all>
*/
#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.
			
			<legal all>
*/
#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
			
			<legal 0>
*/
#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
			
			<legal 0>
*/
#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_