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/*
* 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 _RECEIVE_USER_INFO_H_
#define _RECEIVE_USER_INFO_H_
#if !defined(__ASSEMBLER__)
#endif
// ################ START SUMMARY #################
//
// Dword Fields
// 0 phy_ppdu_id[15:0], user_rssi[23:16], pkt_type[27:24], stbc[28], reception_type[31:29]
// 1 rate_mcs[3:0], sgi[5:4], receive_bandwidth[7:6], mimo_ss_bitmap[15:8], ofdma_ru_allocation[23:16], ofdma_user_index[30:24], ofdma_content_channel[31]
// 2 ldpc[0], reserved_2a[31:1]
//
// ################ END SUMMARY #################
#define NUM_OF_DWORDS_RECEIVE_USER_INFO 3
struct receive_user_info {
uint32_t phy_ppdu_id : 16, //[15:0]
user_rssi : 8, //[23:16]
pkt_type : 4, //[27:24]
stbc : 1, //[28]
reception_type : 3; //[31:29]
uint32_t rate_mcs : 4, //[3:0]
sgi : 2, //[5:4]
receive_bandwidth : 2, //[7:6]
mimo_ss_bitmap : 8, //[15:8]
ofdma_ru_allocation : 8, //[23:16]
ofdma_user_index : 7, //[30:24]
ofdma_content_channel : 1; //[31]
uint32_t ldpc : 1, //[0]
reserved_2a : 31; //[31:1]
};
/*
phy_ppdu_id
A ppdu counter value that PHY increments for every PPDU
received. The counter value wraps around
<legal all>
user_rssi
RSSI for this user
Frequency domain RSSI measurement for this user. Based
on the channel estimate.
<legal all>
pkt_type
Packet type:
<enum 0 dot11a>802.11a PPDU type
<enum 1 dot11b>802.11b PPDU type
<enum 2 dot11n_mm>802.11n Mixed Mode PPDU type
<enum 3 dot11ac>802.11ac PPDU type
<enum 4 dot11ax>802.11ax PPDU type
stbc
When set, use STBC transmission rates
reception_type
Indicates what type of reception this is.
<enum 0 reception_type_SU > Basic SU reception (not
part of OFDMA or MIMO)
<enum 1 reception_type_MU_MIMO > This is related to
DL type of reception
<enum 2 reception_type_MU_OFDMA > This is related
to DL type of reception
<enum 3 reception_type_MU_OFDMA_MIMO > This is
related to DL type of reception
<enum 4 reception_type_UL_MU_MIMO > This is related
to UL type of reception
<enum 5 reception_type_UL_MU_OFDMA > This is
related to UL type of reception
<enum 6 reception_type_UL_MU_OFDMA_MIMO > This is
related to UL type of reception
<legal 0-6>
rate_mcs
For details, refer to MCS_TYPE description
<legal all>
sgi
Field only valid when pkt type is HT, VHT or HE.
<enum 0 gi_0_8_us > Legacy normal GI. Can also be
used for HE
<enum 1 gi_0_4_us > Legacy short GI. Can also be
used for HE
<enum 2 gi_1_6_us > HE related GI
<enum 3 gi_3_2_us > HE related GI
<legal 0 - 3>
receive_bandwidth
Full receive Bandwidth
<enum 0 full_rx_bw_20_mhz>
<enum 1 full_rx_bw_40_mhz>
<enum 2 full_rx_bw_80_mhz>
<enum 3 full_rx_bw_160_mhz>
<legal 0-3>
mimo_ss_bitmap
Field only valid in case of MIMO type reception
Bitmap, with each bit indicating if the related spatial
stream is used for this STA
LSB related to SS 0
0: spatial stream not used for this reception
1: spatial stream used for this reception
<legal all>
ofdma_ru_allocation
Field only valid in case of OFDMA type receptions (DL
and UL)
Indicates the RU number associated with this user.
In case of reception where the transmission was DL MU
OFDMA, this field provides the RU pattern. Note that fields
ofdma_user_index and Content_channel are needed to determine
which RU was actually assigned to this user.
In case of reception where the transmission was UL MU
OFDMA, this field contains everything needed to determine
the actual RU. Note that PHY may insert the RU width in
Reserved_2a[6:0].
<legal all>
ofdma_user_index
Field only valid in the of DL MU OFDMA reception
The user number within the RU_allocation.
This is needed for SW to determine the exact RU position
within the reception.
<legal all>
ofdma_content_channel
Field only valid in the of DL MU OFDMA/MIMO reception
In case of DL MU reception, this field indicates the
content channel number where PHY found the RU information
for this user
This is needed for SW to determine the exact RU position
within the reception.
<enum 0 content_channel_1>
<enum 1 content_channel_2>
<legal all>
ldpc
When set, indicates that LDPC coding was used.
<legal all>
reserved_2a
In case of UL OFDMA reception, PHY is recommended to
insert the RU width in Reserved_2a[6:0].
<legal 0 - 127>
*/
/* Description RECEIVE_USER_INFO_0_PHY_PPDU_ID
A ppdu counter value that PHY increments for every PPDU
received. The counter value wraps around
<legal all>
*/
#define RECEIVE_USER_INFO_0_PHY_PPDU_ID_OFFSET 0x00000000
#define RECEIVE_USER_INFO_0_PHY_PPDU_ID_LSB 0
#define RECEIVE_USER_INFO_0_PHY_PPDU_ID_MASK 0x0000ffff
/* Description RECEIVE_USER_INFO_0_USER_RSSI
RSSI for this user
Frequency domain RSSI measurement for this user. Based
on the channel estimate.
<legal all>
*/
#define RECEIVE_USER_INFO_0_USER_RSSI_OFFSET 0x00000000
#define RECEIVE_USER_INFO_0_USER_RSSI_LSB 16
#define RECEIVE_USER_INFO_0_USER_RSSI_MASK 0x00ff0000
/* Description RECEIVE_USER_INFO_0_PKT_TYPE
Packet type:
<enum 0 dot11a>802.11a PPDU type
<enum 1 dot11b>802.11b PPDU type
<enum 2 dot11n_mm>802.11n Mixed Mode PPDU type
<enum 3 dot11ac>802.11ac PPDU type
<enum 4 dot11ax>802.11ax PPDU type
*/
#define RECEIVE_USER_INFO_0_PKT_TYPE_OFFSET 0x00000000
#define RECEIVE_USER_INFO_0_PKT_TYPE_LSB 24
#define RECEIVE_USER_INFO_0_PKT_TYPE_MASK 0x0f000000
/* Description RECEIVE_USER_INFO_0_STBC
When set, use STBC transmission rates
*/
#define RECEIVE_USER_INFO_0_STBC_OFFSET 0x00000000
#define RECEIVE_USER_INFO_0_STBC_LSB 28
#define RECEIVE_USER_INFO_0_STBC_MASK 0x10000000
/* Description RECEIVE_USER_INFO_0_RECEPTION_TYPE
Indicates what type of reception this is.
<enum 0 reception_type_SU > Basic SU reception (not
part of OFDMA or MIMO)
<enum 1 reception_type_MU_MIMO > This is related to
DL type of reception
<enum 2 reception_type_MU_OFDMA > This is related
to DL type of reception
<enum 3 reception_type_MU_OFDMA_MIMO > This is
related to DL type of reception
<enum 4 reception_type_UL_MU_MIMO > This is related
to UL type of reception
<enum 5 reception_type_UL_MU_OFDMA > This is
related to UL type of reception
<enum 6 reception_type_UL_MU_OFDMA_MIMO > This is
related to UL type of reception
<legal 0-6>
*/
#define RECEIVE_USER_INFO_0_RECEPTION_TYPE_OFFSET 0x00000000
#define RECEIVE_USER_INFO_0_RECEPTION_TYPE_LSB 29
#define RECEIVE_USER_INFO_0_RECEPTION_TYPE_MASK 0xe0000000
/* Description RECEIVE_USER_INFO_1_RATE_MCS
For details, refer to MCS_TYPE description
<legal all>
*/
#define RECEIVE_USER_INFO_1_RATE_MCS_OFFSET 0x00000004
#define RECEIVE_USER_INFO_1_RATE_MCS_LSB 0
#define RECEIVE_USER_INFO_1_RATE_MCS_MASK 0x0000000f
/* Description RECEIVE_USER_INFO_1_SGI
Field only valid when pkt type is HT, VHT or HE.
<enum 0 gi_0_8_us > Legacy normal GI. Can also be
used for HE
<enum 1 gi_0_4_us > Legacy short GI. Can also be
used for HE
<enum 2 gi_1_6_us > HE related GI
<enum 3 gi_3_2_us > HE related GI
<legal 0 - 3>
*/
#define RECEIVE_USER_INFO_1_SGI_OFFSET 0x00000004
#define RECEIVE_USER_INFO_1_SGI_LSB 4
#define RECEIVE_USER_INFO_1_SGI_MASK 0x00000030
/* Description RECEIVE_USER_INFO_1_RECEIVE_BANDWIDTH
Full receive Bandwidth
<enum 0 full_rx_bw_20_mhz>
<enum 1 full_rx_bw_40_mhz>
<enum 2 full_rx_bw_80_mhz>
<enum 3 full_rx_bw_160_mhz>
<legal 0-3>
*/
#define RECEIVE_USER_INFO_1_RECEIVE_BANDWIDTH_OFFSET 0x00000004
#define RECEIVE_USER_INFO_1_RECEIVE_BANDWIDTH_LSB 6
#define RECEIVE_USER_INFO_1_RECEIVE_BANDWIDTH_MASK 0x000000c0
/* Description RECEIVE_USER_INFO_1_MIMO_SS_BITMAP
Field only valid in case of MIMO type reception
Bitmap, with each bit indicating if the related spatial
stream is used for this STA
LSB related to SS 0
0: spatial stream not used for this reception
1: spatial stream used for this reception
<legal all>
*/
#define RECEIVE_USER_INFO_1_MIMO_SS_BITMAP_OFFSET 0x00000004
#define RECEIVE_USER_INFO_1_MIMO_SS_BITMAP_LSB 8
#define RECEIVE_USER_INFO_1_MIMO_SS_BITMAP_MASK 0x0000ff00
/* Description RECEIVE_USER_INFO_1_OFDMA_RU_ALLOCATION
Field only valid in case of OFDMA type receptions (DL
and UL)
Indicates the RU number associated with this user.
In case of reception where the transmission was DL MU
OFDMA, this field provides the RU pattern. Note that fields
ofdma_user_index and Content_channel are needed to determine
which RU was actually assigned to this user.
In case of reception where the transmission was UL MU
OFDMA, this field contains everything needed to determine
the actual RU. Note that PHY may insert the RU width in
Reserved_2a[6:0].
<legal all>
*/
#define RECEIVE_USER_INFO_1_OFDMA_RU_ALLOCATION_OFFSET 0x00000004
#define RECEIVE_USER_INFO_1_OFDMA_RU_ALLOCATION_LSB 16
#define RECEIVE_USER_INFO_1_OFDMA_RU_ALLOCATION_MASK 0x00ff0000
/* Description RECEIVE_USER_INFO_1_OFDMA_USER_INDEX
Field only valid in the of DL MU OFDMA reception
The user number within the RU_allocation.
This is needed for SW to determine the exact RU position
within the reception.
<legal all>
*/
#define RECEIVE_USER_INFO_1_OFDMA_USER_INDEX_OFFSET 0x00000004
#define RECEIVE_USER_INFO_1_OFDMA_USER_INDEX_LSB 24
#define RECEIVE_USER_INFO_1_OFDMA_USER_INDEX_MASK 0x7f000000
/* Description RECEIVE_USER_INFO_1_OFDMA_CONTENT_CHANNEL
Field only valid in the of DL MU OFDMA/MIMO reception
In case of DL MU reception, this field indicates the
content channel number where PHY found the RU information
for this user
This is needed for SW to determine the exact RU position
within the reception.
<enum 0 content_channel_1>
<enum 1 content_channel_2>
<legal all>
*/
#define RECEIVE_USER_INFO_1_OFDMA_CONTENT_CHANNEL_OFFSET 0x00000004
#define RECEIVE_USER_INFO_1_OFDMA_CONTENT_CHANNEL_LSB 31
#define RECEIVE_USER_INFO_1_OFDMA_CONTENT_CHANNEL_MASK 0x80000000
/* Description RECEIVE_USER_INFO_2_LDPC
When set, indicates that LDPC coding was used.
<legal all>
*/
#define RECEIVE_USER_INFO_2_LDPC_OFFSET 0x00000008
#define RECEIVE_USER_INFO_2_LDPC_LSB 0
#define RECEIVE_USER_INFO_2_LDPC_MASK 0x00000001
/* Description RECEIVE_USER_INFO_2_RESERVED_2A
In case of UL OFDMA reception, PHY is recommended to
insert the RU width in Reserved_2a[6:0].
<legal 0 - 127>
*/
#define RECEIVE_USER_INFO_2_RESERVED_2A_OFFSET 0x00000008
#define RECEIVE_USER_INFO_2_RESERVED_2A_LSB 1
#define RECEIVE_USER_INFO_2_RESERVED_2A_MASK 0xfffffffe
#endif // _RECEIVE_USER_INFO_H_