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linux/drivers/net/wireless/ath/ath10k/rx_desc.h
Kalle Valo 5e3dd157d7 ath10k: mac80211 driver for Qualcomm Atheros 802.11ac CQA98xx devices 
Here's a new mac80211 driver for Qualcomm Atheros 802.11ac QCA98xx devices.
A major difference from ath9k is that there's now a firmware and
that's why we had to implement a new driver.

The wiki page for the driver is:

http://wireless.kernel.org/en/users/Drivers/ath10k

The driver has had many authors, they are listed here alphabetically:

Bartosz Markowski <bartosz.markowski@tieto.com>
Janusz Dziedzic <janusz.dziedzic@tieto.com>
Kalle Valo <kvalo@qca.qualcomm.com>
Marek Kwaczynski <marek.kwaczynski@tieto.com>
Marek Puzyniak <marek.puzyniak@tieto.com>
Michal Kazior <michal.kazior@tieto.com>
Sujith Manoharan <c_manoha@qca.qualcomm.com>

Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
2013-06-12 20:52:10 +03:00

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/*
* Copyright (c) 2005-2011 Atheros Communications Inc.
* Copyright (c) 2011-2013 Qualcomm Atheros, Inc.
*
* 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 _RX_DESC_H_
#define _RX_DESC_H_
enum rx_attention_flags {
RX_ATTENTION_FLAGS_FIRST_MPDU = 1 << 0,
RX_ATTENTION_FLAGS_LAST_MPDU = 1 << 1,
RX_ATTENTION_FLAGS_MCAST_BCAST = 1 << 2,
RX_ATTENTION_FLAGS_PEER_IDX_INVALID = 1 << 3,
RX_ATTENTION_FLAGS_PEER_IDX_TIMEOUT = 1 << 4,
RX_ATTENTION_FLAGS_POWER_MGMT = 1 << 5,
RX_ATTENTION_FLAGS_NON_QOS = 1 << 6,
RX_ATTENTION_FLAGS_NULL_DATA = 1 << 7,
RX_ATTENTION_FLAGS_MGMT_TYPE = 1 << 8,
RX_ATTENTION_FLAGS_CTRL_TYPE = 1 << 9,
RX_ATTENTION_FLAGS_MORE_DATA = 1 << 10,
RX_ATTENTION_FLAGS_EOSP = 1 << 11,
RX_ATTENTION_FLAGS_U_APSD_TRIGGER = 1 << 12,
RX_ATTENTION_FLAGS_FRAGMENT = 1 << 13,
RX_ATTENTION_FLAGS_ORDER = 1 << 14,
RX_ATTENTION_FLAGS_CLASSIFICATION = 1 << 15,
RX_ATTENTION_FLAGS_OVERFLOW_ERR = 1 << 16,
RX_ATTENTION_FLAGS_MSDU_LENGTH_ERR = 1 << 17,
RX_ATTENTION_FLAGS_TCP_UDP_CHKSUM_FAIL = 1 << 18,
RX_ATTENTION_FLAGS_IP_CHKSUM_FAIL = 1 << 19,
RX_ATTENTION_FLAGS_SA_IDX_INVALID = 1 << 20,
RX_ATTENTION_FLAGS_DA_IDX_INVALID = 1 << 21,
RX_ATTENTION_FLAGS_SA_IDX_TIMEOUT = 1 << 22,
RX_ATTENTION_FLAGS_DA_IDX_TIMEOUT = 1 << 23,
RX_ATTENTION_FLAGS_ENCRYPT_REQUIRED = 1 << 24,
RX_ATTENTION_FLAGS_DIRECTED = 1 << 25,
RX_ATTENTION_FLAGS_BUFFER_FRAGMENT = 1 << 26,
RX_ATTENTION_FLAGS_MPDU_LENGTH_ERR = 1 << 27,
RX_ATTENTION_FLAGS_TKIP_MIC_ERR = 1 << 28,
RX_ATTENTION_FLAGS_DECRYPT_ERR = 1 << 29,
RX_ATTENTION_FLAGS_FCS_ERR = 1 << 30,
RX_ATTENTION_FLAGS_MSDU_DONE = 1 << 31,
};
struct rx_attention {
__le32 flags; /* %RX_ATTENTION_FLAGS_ */
} __packed;
/*
* first_mpdu
* Indicates the first MSDU of the PPDU. If both first_mpdu
* and last_mpdu are set in the MSDU then this is a not an
* A-MPDU frame but a stand alone MPDU. Interior MPDU in an
* A-MPDU shall have both first_mpdu and last_mpdu bits set to
* 0. The PPDU start status will only be valid when this bit
* is set.
*
* last_mpdu
* Indicates the last MSDU of the last MPDU of the PPDU. The
* PPDU end status will only be valid when this bit is set.
*
* mcast_bcast
* Multicast / broadcast indicator. Only set when the MAC
* address 1 bit 0 is set indicating mcast/bcast and the BSSID
* matches one of the 4 BSSID registers. Only set when
* first_msdu is set.
*
* peer_idx_invalid
* Indicates no matching entries within the the max search
* count. Only set when first_msdu is set.
*
* peer_idx_timeout
* Indicates an unsuccessful search for the peer index due to
* timeout. Only set when first_msdu is set.
*
* power_mgmt
* Power management bit set in the 802.11 header. Only set
* when first_msdu is set.
*
* non_qos
* Set if packet is not a non-QoS data frame. Only set when
* first_msdu is set.
*
* null_data
* Set if frame type indicates either null data or QoS null
* data format. Only set when first_msdu is set.
*
* mgmt_type
* Set if packet is a management packet. Only set when
* first_msdu is set.
*
* ctrl_type
* Set if packet is a control packet. Only set when first_msdu
* is set.
*
* more_data
* Set if more bit in frame control is set. Only set when
* first_msdu is set.
*
* eosp
* Set if the EOSP (end of service period) bit in the QoS
* control field is set. Only set when first_msdu is set.
*
* u_apsd_trigger
* Set if packet is U-APSD trigger. Key table will have bits
* per TID to indicate U-APSD trigger.
*
* fragment
* Indicates that this is an 802.11 fragment frame. This is
* set when either the more_frag bit is set in the frame
* control or the fragment number is not zero. Only set when
* first_msdu is set.
*
* order
* Set if the order bit in the frame control is set. Only set
* when first_msdu is set.
*
* classification
* Indicates that this status has a corresponding MSDU that
* requires FW processing. The OLE will have classification
* ring mask registers which will indicate the ring(s) for
* packets and descriptors which need FW attention.
*
* overflow_err
* PCU Receive FIFO does not have enough space to store the
* full receive packet. Enough space is reserved in the
* receive FIFO for the status is written. This MPDU remaining
* packets in the PPDU will be filtered and no Ack response
* will be transmitted.
*
* msdu_length_err
* Indicates that the MSDU length from the 802.3 encapsulated
* length field extends beyond the MPDU boundary.
*
* tcp_udp_chksum_fail
* Indicates that the computed checksum (tcp_udp_chksum) did
* not match the checksum in the TCP/UDP header.
*
* ip_chksum_fail
* Indicates that the computed checksum did not match the
* checksum in the IP header.
*
* sa_idx_invalid
* Indicates no matching entry was found in the address search
* table for the source MAC address.
*
* da_idx_invalid
* Indicates no matching entry was found in the address search
* table for the destination MAC address.
*
* sa_idx_timeout
* Indicates an unsuccessful search for the source MAC address
* due to the expiring of the search timer.
*
* da_idx_timeout
* Indicates an unsuccessful search for the destination MAC
* address due to the expiring of the search timer.
*
* encrypt_required
* Indicates that this data type frame is not encrypted even if
* the policy for this MPDU requires encryption as indicated in
* the peer table key type.
*
* directed
* MPDU is a directed packet which means that the RA matched
* our STA addresses. In proxySTA it means that the TA matched
* an entry in our address search table with the corresponding
* 'no_ack' bit is the address search entry cleared.
*
* buffer_fragment
* Indicates that at least one of the rx buffers has been
* fragmented. If set the FW should look at the rx_frag_info
* descriptor described below.
*
* mpdu_length_err
* Indicates that the MPDU was pre-maturely terminated
* resulting in a truncated MPDU. Don't trust the MPDU length
* field.
*
* tkip_mic_err
* Indicates that the MPDU Michael integrity check failed
*
* decrypt_err
* Indicates that the MPDU decrypt integrity check failed
*
* fcs_err
* Indicates that the MPDU FCS check failed
*
* msdu_done
* If set indicates that the RX packet data, RX header data, RX
* PPDU start descriptor, RX MPDU start/end descriptor, RX MSDU
* start/end descriptors and RX Attention descriptor are all
* valid. This bit must be in the last octet of the
* descriptor.
*/
struct rx_frag_info {
u8 ring0_more_count;
u8 ring1_more_count;
u8 ring2_more_count;
u8 ring3_more_count;
} __packed;
/*
* ring0_more_count
* Indicates the number of more buffers associated with RX DMA
* ring 0. Field is filled in by the RX_DMA.
*
* ring1_more_count
* Indicates the number of more buffers associated with RX DMA
* ring 1. Field is filled in by the RX_DMA.
*
* ring2_more_count
* Indicates the number of more buffers associated with RX DMA
* ring 2. Field is filled in by the RX_DMA.
*
* ring3_more_count
* Indicates the number of more buffers associated with RX DMA
* ring 3. Field is filled in by the RX_DMA.
*/
enum htt_rx_mpdu_encrypt_type {
HTT_RX_MPDU_ENCRYPT_WEP40 = 0,
HTT_RX_MPDU_ENCRYPT_WEP104 = 1,
HTT_RX_MPDU_ENCRYPT_TKIP_WITHOUT_MIC = 2,
HTT_RX_MPDU_ENCRYPT_WEP128 = 3,
HTT_RX_MPDU_ENCRYPT_TKIP_WPA = 4,
HTT_RX_MPDU_ENCRYPT_WAPI = 5,
HTT_RX_MPDU_ENCRYPT_AES_CCM_WPA2 = 6,
HTT_RX_MPDU_ENCRYPT_NONE = 7,
};
#define RX_MPDU_START_INFO0_PEER_IDX_MASK 0x000007ff
#define RX_MPDU_START_INFO0_PEER_IDX_LSB 0
#define RX_MPDU_START_INFO0_SEQ_NUM_MASK 0x0fff0000
#define RX_MPDU_START_INFO0_SEQ_NUM_LSB 16
#define RX_MPDU_START_INFO0_ENCRYPT_TYPE_MASK 0xf0000000
#define RX_MPDU_START_INFO0_ENCRYPT_TYPE_LSB 28
#define RX_MPDU_START_INFO0_FROM_DS (1 << 11)
#define RX_MPDU_START_INFO0_TO_DS (1 << 12)
#define RX_MPDU_START_INFO0_ENCRYPTED (1 << 13)
#define RX_MPDU_START_INFO0_RETRY (1 << 14)
#define RX_MPDU_START_INFO0_TXBF_H_INFO (1 << 15)
#define RX_MPDU_START_INFO1_TID_MASK 0xf0000000
#define RX_MPDU_START_INFO1_TID_LSB 28
#define RX_MPDU_START_INFO1_DIRECTED (1 << 16)
struct rx_mpdu_start {
__le32 info0;
union {
struct {
__le32 pn31_0;
__le32 info1; /* %RX_MPDU_START_INFO1_ */
} __packed;
struct {
u8 pn[6];
} __packed;
} __packed;
} __packed;
/*
* peer_idx
* The index of the address search table which associated with
* the peer table entry corresponding to this MPDU. Only valid
* when first_msdu is set.
*
* fr_ds
* Set if the from DS bit is set in the frame control. Only
* valid when first_msdu is set.
*
* to_ds
* Set if the to DS bit is set in the frame control. Only
* valid when first_msdu is set.
*
* encrypted
* Protected bit from the frame control. Only valid when
* first_msdu is set.
*
* retry
* Retry bit from the frame control. Only valid when
* first_msdu is set.
*
* txbf_h_info
* The MPDU data will contain H information. Primarily used
* for debug.
*
* seq_num
* The sequence number from the 802.11 header. Only valid when
* first_msdu is set.
*
* encrypt_type
* Indicates type of decrypt cipher used (as defined in the
* peer table)
* 0: WEP40
* 1: WEP104
* 2: TKIP without MIC
* 3: WEP128
* 4: TKIP (WPA)
* 5: WAPI
* 6: AES-CCM (WPA2)
* 7: No cipher
* Only valid when first_msdu_is set
*
* pn_31_0
* Bits [31:0] of the PN number extracted from the IV field
* WEP: IV = {key_id_octet, pn2, pn1, pn0}. Only pn[23:0] is
* valid.
* TKIP: IV = {pn5, pn4, pn3, pn2, key_id_octet, pn0,
* WEPSeed[1], pn1}. Only pn[47:0] is valid.
* AES-CCM: IV = {pn5, pn4, pn3, pn2, key_id_octet, 0x0, pn1,
* pn0}. Only pn[47:0] is valid.
* WAPI: IV = {key_id_octet, 0x0, pn15, pn14, pn13, pn12, pn11,
* pn10, pn9, pn8, pn7, pn6, pn5, pn4, pn3, pn2, pn1, pn0}.
* The ext_wapi_pn[127:48] in the rx_msdu_misc descriptor and
* pn[47:0] are valid.
* Only valid when first_msdu is set.
*
* pn_47_32
* Bits [47:32] of the PN number. See description for
* pn_31_0. The remaining PN fields are in the rx_msdu_end
* descriptor
*
* pn
* Use this field to access the pn without worrying about
* byte-order and bitmasking/bitshifting.
*
* directed
* See definition in RX attention descriptor
*
* reserved_2
* Reserved: HW should fill with zero. FW should ignore.
*
* tid
* The TID field in the QoS control field
*/
#define RX_MPDU_END_INFO0_RESERVED_0_MASK 0x00001fff
#define RX_MPDU_END_INFO0_RESERVED_0_LSB 0
#define RX_MPDU_END_INFO0_POST_DELIM_CNT_MASK 0x0fff0000
#define RX_MPDU_END_INFO0_POST_DELIM_CNT_LSB 16
#define RX_MPDU_END_INFO0_OVERFLOW_ERR (1 << 13)
#define RX_MPDU_END_INFO0_LAST_MPDU (1 << 14)
#define RX_MPDU_END_INFO0_POST_DELIM_ERR (1 << 15)
#define RX_MPDU_END_INFO0_MPDU_LENGTH_ERR (1 << 28)
#define RX_MPDU_END_INFO0_TKIP_MIC_ERR (1 << 29)
#define RX_MPDU_END_INFO0_DECRYPT_ERR (1 << 30)
#define RX_MPDU_END_INFO0_FCS_ERR (1 << 31)
struct rx_mpdu_end {
__le32 info0;
} __packed;
/*
* reserved_0
* Reserved
*
* overflow_err
* PCU Receive FIFO does not have enough space to store the
* full receive packet. Enough space is reserved in the
* receive FIFO for the status is written. This MPDU remaining
* packets in the PPDU will be filtered and no Ack response
* will be transmitted.
*
* last_mpdu
* Indicates that this is the last MPDU of a PPDU.
*
* post_delim_err
* Indicates that a delimiter FCS error occurred after this
* MPDU before the next MPDU. Only valid when last_msdu is
* set.
*
* post_delim_cnt
* Count of the delimiters after this MPDU. This requires the
* last MPDU to be held until all the EOF descriptors have been
* received. This may be inefficient in the future when
* ML-MIMO is used. Only valid when last_mpdu is set.
*
* mpdu_length_err
* See definition in RX attention descriptor
*
* tkip_mic_err
* See definition in RX attention descriptor
*
* decrypt_err
* See definition in RX attention descriptor
*
* fcs_err
* See definition in RX attention descriptor
*/
#define RX_MSDU_START_INFO0_MSDU_LENGTH_MASK 0x00003fff
#define RX_MSDU_START_INFO0_MSDU_LENGTH_LSB 0
#define RX_MSDU_START_INFO0_IP_OFFSET_MASK 0x000fc000
#define RX_MSDU_START_INFO0_IP_OFFSET_LSB 14
#define RX_MSDU_START_INFO0_RING_MASK_MASK 0x00f00000
#define RX_MSDU_START_INFO0_RING_MASK_LSB 20
#define RX_MSDU_START_INFO0_TCP_UDP_OFFSET_MASK 0x7f000000
#define RX_MSDU_START_INFO0_TCP_UDP_OFFSET_LSB 24
#define RX_MSDU_START_INFO1_MSDU_NUMBER_MASK 0x000000ff
#define RX_MSDU_START_INFO1_MSDU_NUMBER_LSB 0
#define RX_MSDU_START_INFO1_DECAP_FORMAT_MASK 0x00000300
#define RX_MSDU_START_INFO1_DECAP_FORMAT_LSB 8
#define RX_MSDU_START_INFO1_SA_IDX_MASK 0x07ff0000
#define RX_MSDU_START_INFO1_SA_IDX_LSB 16
#define RX_MSDU_START_INFO1_IPV4_PROTO (1 << 10)
#define RX_MSDU_START_INFO1_IPV6_PROTO (1 << 11)
#define RX_MSDU_START_INFO1_TCP_PROTO (1 << 12)
#define RX_MSDU_START_INFO1_UDP_PROTO (1 << 13)
#define RX_MSDU_START_INFO1_IP_FRAG (1 << 14)
#define RX_MSDU_START_INFO1_TCP_ONLY_ACK (1 << 15)
enum rx_msdu_decap_format {
RX_MSDU_DECAP_RAW = 0,
RX_MSDU_DECAP_NATIVE_WIFI = 1,
RX_MSDU_DECAP_ETHERNET2_DIX = 2,
RX_MSDU_DECAP_8023_SNAP_LLC = 3
};
struct rx_msdu_start {
__le32 info0; /* %RX_MSDU_START_INFO0_ */
__le32 flow_id_crc;
__le32 info1; /* %RX_MSDU_START_INFO1_ */
} __packed;
/*
* msdu_length
* MSDU length in bytes after decapsulation. This field is
* still valid for MPDU frames without A-MSDU. It still
* represents MSDU length after decapsulation
*
* ip_offset
* Indicates the IP offset in bytes from the start of the
* packet after decapsulation. Only valid if ipv4_proto or
* ipv6_proto is set.
*
* ring_mask
* Indicates the destination RX rings for this MSDU.
*
* tcp_udp_offset
* Indicates the offset in bytes to the start of TCP or UDP
* header from the start of the IP header after decapsulation.
* Only valid if tcp_prot or udp_prot is set. The value 0
* indicates that the offset is longer than 127 bytes.
*
* reserved_0c
* Reserved: HW should fill with zero. FW should ignore.
*
* flow_id_crc
* The flow_id_crc runs CRC32 on the following information:
* IPv4 option: dest_addr[31:0], src_addr [31:0], {24'b0,
* protocol[7:0]}.
* IPv6 option: dest_addr[127:0], src_addr [127:0], {24'b0,
* next_header[7:0]}
* UDP case: sort_port[15:0], dest_port[15:0]
* TCP case: sort_port[15:0], dest_port[15:0],
* {header_length[3:0], 6'b0, flags[5:0], window_size[15:0]},
* {16'b0, urgent_ptr[15:0]}, all options except 32-bit
* timestamp.
*
* msdu_number
* Indicates the MSDU number within a MPDU. This value is
* reset to zero at the start of each MPDU. If the number of
* MSDU exceeds 255 this number will wrap using modulo 256.
*
* decap_format
* Indicates the format after decapsulation:
* 0: RAW: No decapsulation
* 1: Native WiFi
* 2: Ethernet 2 (DIX)
* 3: 802.3 (SNAP/LLC)
*
* ipv4_proto
* Set if L2 layer indicates IPv4 protocol.
*
* ipv6_proto
* Set if L2 layer indicates IPv6 protocol.
*
* tcp_proto
* Set if the ipv4_proto or ipv6_proto are set and the IP
* protocol indicates TCP.
*
* udp_proto
* Set if the ipv4_proto or ipv6_proto are set and the IP
* protocol indicates UDP.
*
* ip_frag
* Indicates that either the IP More frag bit is set or IP frag
* number is non-zero. If set indicates that this is a
* fragmented IP packet.
*
* tcp_only_ack
* Set if only the TCP Ack bit is set in the TCP flags and if
* the TCP payload is 0.
*
* sa_idx
* The offset in the address table which matches the MAC source
* address.
*
* reserved_2b
* Reserved: HW should fill with zero. FW should ignore.
*/
#define RX_MSDU_END_INFO0_REPORTED_MPDU_LENGTH_MASK 0x00003fff
#define RX_MSDU_END_INFO0_REPORTED_MPDU_LENGTH_LSB 0
#define RX_MSDU_END_INFO0_FIRST_MSDU (1 << 14)
#define RX_MSDU_END_INFO0_LAST_MSDU (1 << 15)
#define RX_MSDU_END_INFO0_PRE_DELIM_ERR (1 << 30)
#define RX_MSDU_END_INFO0_RESERVED_3B (1 << 31)
struct rx_msdu_end {
__le16 ip_hdr_cksum;
__le16 tcp_hdr_cksum;
u8 key_id_octet;
u8 classification_filter;
u8 wapi_pn[10];
__le32 info0;
} __packed;
/*
*ip_hdr_chksum
* This can include the IP header checksum or the pseudo header
* checksum used by TCP/UDP checksum.
*
*tcp_udp_chksum
* The value of the computed TCP/UDP checksum. A mode bit
* selects whether this checksum is the full checksum or the
* partial checksum which does not include the pseudo header.
*
*key_id_octet
* The key ID octet from the IV. Only valid when first_msdu is
* set.
*
*classification_filter
* Indicates the number classification filter rule
*
*ext_wapi_pn_63_48
* Extension PN (packet number) which is only used by WAPI.
* This corresponds to WAPI PN bits [63:48] (pn6 and pn7). The
* WAPI PN bits [63:0] are in the pn field of the rx_mpdu_start
* descriptor.
*
*ext_wapi_pn_95_64
* Extension PN (packet number) which is only used by WAPI.
* This corresponds to WAPI PN bits [95:64] (pn8, pn9, pn10 and
* pn11).
*
*ext_wapi_pn_127_96
* Extension PN (packet number) which is only used by WAPI.
* This corresponds to WAPI PN bits [127:96] (pn12, pn13, pn14,
* pn15).
*
*reported_mpdu_length
* MPDU length before decapsulation. Only valid when
* first_msdu is set. This field is taken directly from the
* length field of the A-MPDU delimiter or the preamble length
* field for non-A-MPDU frames.
*
*first_msdu
* Indicates the first MSDU of A-MSDU. If both first_msdu and
* last_msdu are set in the MSDU then this is a non-aggregated
* MSDU frame: normal MPDU. Interior MSDU in an A-MSDU shall
* have both first_mpdu and last_mpdu bits set to 0.
*
*last_msdu
* Indicates the last MSDU of the A-MSDU. MPDU end status is
* only valid when last_msdu is set.
*
*reserved_3a
* Reserved: HW should fill with zero. FW should ignore.
*
*pre_delim_err
* Indicates that the first delimiter had a FCS failure. Only
* valid when first_mpdu and first_msdu are set.
*
*reserved_3b
* Reserved: HW should fill with zero. FW should ignore.
*/
#define RX_PPDU_START_SIG_RATE_SELECT_OFDM 0
#define RX_PPDU_START_SIG_RATE_SELECT_CCK 1
#define RX_PPDU_START_SIG_RATE_OFDM_48 0
#define RX_PPDU_START_SIG_RATE_OFDM_24 1
#define RX_PPDU_START_SIG_RATE_OFDM_12 2
#define RX_PPDU_START_SIG_RATE_OFDM_6 3
#define RX_PPDU_START_SIG_RATE_OFDM_54 4
#define RX_PPDU_START_SIG_RATE_OFDM_36 5
#define RX_PPDU_START_SIG_RATE_OFDM_18 6
#define RX_PPDU_START_SIG_RATE_OFDM_9 7
#define RX_PPDU_START_SIG_RATE_CCK_LP_11 0
#define RX_PPDU_START_SIG_RATE_CCK_LP_5_5 1
#define RX_PPDU_START_SIG_RATE_CCK_LP_2 2
#define RX_PPDU_START_SIG_RATE_CCK_LP_1 3
#define RX_PPDU_START_SIG_RATE_CCK_SP_11 4
#define RX_PPDU_START_SIG_RATE_CCK_SP_5_5 5
#define RX_PPDU_START_SIG_RATE_CCK_SP_2 6
#define HTT_RX_PPDU_START_PREAMBLE_LEGACY 0x04
#define HTT_RX_PPDU_START_PREAMBLE_HT 0x08
#define HTT_RX_PPDU_START_PREAMBLE_HT_WITH_TXBF 0x09
#define HTT_RX_PPDU_START_PREAMBLE_VHT 0x0C
#define HTT_RX_PPDU_START_PREAMBLE_VHT_WITH_TXBF 0x0D
#define RX_PPDU_START_INFO0_IS_GREENFIELD (1 << 0)
#define RX_PPDU_START_INFO1_L_SIG_RATE_MASK 0x0000000f
#define RX_PPDU_START_INFO1_L_SIG_RATE_LSB 0
#define RX_PPDU_START_INFO1_L_SIG_LENGTH_MASK 0x0001ffe0
#define RX_PPDU_START_INFO1_L_SIG_LENGTH_LSB 5
#define RX_PPDU_START_INFO1_L_SIG_TAIL_MASK 0x00fc0000
#define RX_PPDU_START_INFO1_L_SIG_TAIL_LSB 18
#define RX_PPDU_START_INFO1_PREAMBLE_TYPE_MASK 0xff000000
#define RX_PPDU_START_INFO1_PREAMBLE_TYPE_LSB 24
#define RX_PPDU_START_INFO1_L_SIG_RATE_SELECT (1 << 4)
#define RX_PPDU_START_INFO1_L_SIG_PARITY (1 << 17)
#define RX_PPDU_START_INFO2_HT_SIG_VHT_SIG_A_1_MASK 0x00ffffff
#define RX_PPDU_START_INFO2_HT_SIG_VHT_SIG_A_1_LSB 0
#define RX_PPDU_START_INFO3_HT_SIG_VHT_SIG_A_2_MASK 0x00ffffff
#define RX_PPDU_START_INFO3_HT_SIG_VHT_SIG_A_2_LSB 0
#define RX_PPDU_START_INFO3_TXBF_H_INFO (1 << 24)
#define RX_PPDU_START_INFO4_VHT_SIG_B_MASK 0x1fffffff
#define RX_PPDU_START_INFO4_VHT_SIG_B_LSB 0
#define RX_PPDU_START_INFO5_SERVICE_MASK 0x0000ffff
#define RX_PPDU_START_INFO5_SERVICE_LSB 0
struct rx_ppdu_start {
struct {
u8 pri20_mhz;
u8 ext20_mhz;
u8 ext40_mhz;
u8 ext80_mhz;
} rssi_chains[4];
u8 rssi_comb;
__le16 rsvd0;
u8 info0; /* %RX_PPDU_START_INFO0_ */
__le32 info1; /* %RX_PPDU_START_INFO1_ */
__le32 info2; /* %RX_PPDU_START_INFO2_ */
__le32 info3; /* %RX_PPDU_START_INFO3_ */
__le32 info4; /* %RX_PPDU_START_INFO4_ */
__le32 info5; /* %RX_PPDU_START_INFO5_ */
} __packed;
/*
* rssi_chain0_pri20
* RSSI of RX PPDU on chain 0 of primary 20 MHz bandwidth.
* Value of 0x80 indicates invalid.
*
* rssi_chain0_sec20
* RSSI of RX PPDU on chain 0 of secondary 20 MHz bandwidth.
* Value of 0x80 indicates invalid.
*
* rssi_chain0_sec40
* RSSI of RX PPDU on chain 0 of secondary 40 MHz bandwidth.
* Value of 0x80 indicates invalid.
*
* rssi_chain0_sec80
* RSSI of RX PPDU on chain 0 of secondary 80 MHz bandwidth.
* Value of 0x80 indicates invalid.
*
* rssi_chain1_pri20
* RSSI of RX PPDU on chain 1 of primary 20 MHz bandwidth.
* Value of 0x80 indicates invalid.
*
* rssi_chain1_sec20
* RSSI of RX PPDU on chain 1 of secondary 20 MHz bandwidth.
* Value of 0x80 indicates invalid.
*
* rssi_chain1_sec40
* RSSI of RX PPDU on chain 1 of secondary 40 MHz bandwidth.
* Value of 0x80 indicates invalid.
*
* rssi_chain1_sec80
* RSSI of RX PPDU on chain 1 of secondary 80 MHz bandwidth.
* Value of 0x80 indicates invalid.
*
* rssi_chain2_pri20
* RSSI of RX PPDU on chain 2 of primary 20 MHz bandwidth.
* Value of 0x80 indicates invalid.
*
* rssi_chain2_sec20
* RSSI of RX PPDU on chain 2 of secondary 20 MHz bandwidth.
* Value of 0x80 indicates invalid.
*
* rssi_chain2_sec40
* RSSI of RX PPDU on chain 2 of secondary 40 MHz bandwidth.
* Value of 0x80 indicates invalid.
*
* rssi_chain2_sec80
* RSSI of RX PPDU on chain 2 of secondary 80 MHz bandwidth.
* Value of 0x80 indicates invalid.
*
* rssi_chain3_pri20
* RSSI of RX PPDU on chain 3 of primary 20 MHz bandwidth.
* Value of 0x80 indicates invalid.
*
* rssi_chain3_sec20
* RSSI of RX PPDU on chain 3 of secondary 20 MHz bandwidth.
* Value of 0x80 indicates invalid.
*
* rssi_chain3_sec40
* RSSI of RX PPDU on chain 3 of secondary 40 MHz bandwidth.
* Value of 0x80 indicates invalid.
*
* rssi_chain3_sec80
* RSSI of RX PPDU on chain 3 of secondary 80 MHz bandwidth.
* Value of 0x80 indicates invalid.
*
* rssi_comb
* The combined RSSI of RX PPDU of all active chains and
* bandwidths. Value of 0x80 indicates invalid.
*
* reserved_4a
* Reserved: HW should fill with 0, FW should ignore.
*
* is_greenfield
* Do we really support this?
*
* reserved_4b
* Reserved: HW should fill with 0, FW should ignore.
*
* l_sig_rate
* If l_sig_rate_select is 0:
* 0x8: OFDM 48 Mbps
* 0x9: OFDM 24 Mbps
* 0xA: OFDM 12 Mbps
* 0xB: OFDM 6 Mbps
* 0xC: OFDM 54 Mbps
* 0xD: OFDM 36 Mbps
* 0xE: OFDM 18 Mbps
* 0xF: OFDM 9 Mbps
* If l_sig_rate_select is 1:
* 0x8: CCK 11 Mbps long preamble
* 0x9: CCK 5.5 Mbps long preamble
* 0xA: CCK 2 Mbps long preamble
* 0xB: CCK 1 Mbps long preamble
* 0xC: CCK 11 Mbps short preamble
* 0xD: CCK 5.5 Mbps short preamble
* 0xE: CCK 2 Mbps short preamble
*
* l_sig_rate_select
* Legacy signal rate select. If set then l_sig_rate indicates
* CCK rates. If clear then l_sig_rate indicates OFDM rates.
*
* l_sig_length
* Length of legacy frame in octets.
*
* l_sig_parity
* Odd parity over l_sig_rate and l_sig_length
*
* l_sig_tail
* Tail bits for Viterbi decoder
*
* preamble_type
* Indicates the type of preamble ahead:
* 0x4: Legacy (OFDM/CCK)
* 0x8: HT
* 0x9: HT with TxBF
* 0xC: VHT
* 0xD: VHT with TxBF
* 0x80 - 0xFF: Reserved for special baseband data types such
* as radar and spectral scan.
*
* ht_sig_vht_sig_a_1
* If preamble_type == 0x8 or 0x9
* HT-SIG (first 24 bits)
* If preamble_type == 0xC or 0xD
* VHT-SIG A (first 24 bits)
* Else
* Reserved
*
* reserved_6
* Reserved: HW should fill with 0, FW should ignore.
*
* ht_sig_vht_sig_a_2
* If preamble_type == 0x8 or 0x9
* HT-SIG (last 24 bits)
* If preamble_type == 0xC or 0xD
* VHT-SIG A (last 24 bits)
* Else
* Reserved
*
* txbf_h_info
* Indicates that the packet data carries H information which
* is used for TxBF debug.
*
* reserved_7
* Reserved: HW should fill with 0, FW should ignore.
*
* vht_sig_b
* WiFi 1.0 and WiFi 2.0 will likely have this field to be all
* 0s since the BB does not plan on decoding VHT SIG-B.
*
* reserved_8
* Reserved: HW should fill with 0, FW should ignore.
*
* service
* Service field from BB for OFDM, HT and VHT packets. CCK
* packets will have service field of 0.
*
* reserved_9
* Reserved: HW should fill with 0, FW should ignore.
*/
#define RX_PPDU_END_FLAGS_PHY_ERR (1 << 0)
#define RX_PPDU_END_FLAGS_RX_LOCATION (1 << 1)
#define RX_PPDU_END_FLAGS_TXBF_H_INFO (1 << 2)
#define RX_PPDU_END_INFO0_RX_ANTENNA_MASK 0x00ffffff
#define RX_PPDU_END_INFO0_RX_ANTENNA_LSB 0
#define RX_PPDU_END_INFO0_FLAGS_TX_HT_VHT_ACK (1 << 24)
#define RX_PPDU_END_INFO0_BB_CAPTURED_CHANNEL (1 << 25)
#define RX_PPDU_END_INFO1_PPDU_DONE (1 << 15)
struct rx_ppdu_end {
__le32 evm_p0;
__le32 evm_p1;
__le32 evm_p2;
__le32 evm_p3;
__le32 evm_p4;
__le32 evm_p5;
__le32 evm_p6;
__le32 evm_p7;
__le32 evm_p8;
__le32 evm_p9;
__le32 evm_p10;
__le32 evm_p11;
__le32 evm_p12;
__le32 evm_p13;
__le32 evm_p14;
__le32 evm_p15;
__le32 tsf_timestamp;
__le32 wb_timestamp;
u8 locationing_timestamp;
u8 phy_err_code;
__le16 flags; /* %RX_PPDU_END_FLAGS_ */
__le32 info0; /* %RX_PPDU_END_INFO0_ */
__le16 bb_length;
__le16 info1; /* %RX_PPDU_END_INFO1_ */
} __packed;
/*
* evm_p0
* EVM for pilot 0. Contain EVM for streams: 0, 1, 2 and 3.
*
* evm_p1
* EVM for pilot 1. Contain EVM for streams: 0, 1, 2 and 3.
*
* evm_p2
* EVM for pilot 2. Contain EVM for streams: 0, 1, 2 and 3.
*
* evm_p3
* EVM for pilot 3. Contain EVM for streams: 0, 1, 2 and 3.
*
* evm_p4
* EVM for pilot 4. Contain EVM for streams: 0, 1, 2 and 3.
*
* evm_p5
* EVM for pilot 5. Contain EVM for streams: 0, 1, 2 and 3.
*
* evm_p6
* EVM for pilot 6. Contain EVM for streams: 0, 1, 2 and 3.
*
* evm_p7
* EVM for pilot 7. Contain EVM for streams: 0, 1, 2 and 3.
*
* evm_p8
* EVM for pilot 8. Contain EVM for streams: 0, 1, 2 and 3.
*
* evm_p9
* EVM for pilot 9. Contain EVM for streams: 0, 1, 2 and 3.
*
* evm_p10
* EVM for pilot 10. Contain EVM for streams: 0, 1, 2 and 3.
*
* evm_p11
* EVM for pilot 11. Contain EVM for streams: 0, 1, 2 and 3.
*
* evm_p12
* EVM for pilot 12. Contain EVM for streams: 0, 1, 2 and 3.
*
* evm_p13
* EVM for pilot 13. Contain EVM for streams: 0, 1, 2 and 3.
*
* evm_p14
* EVM for pilot 14. Contain EVM for streams: 0, 1, 2 and 3.
*
* evm_p15
* EVM for pilot 15. Contain EVM for streams: 0, 1, 2 and 3.
*
* tsf_timestamp
* Receive TSF timestamp sampled on the rising edge of
* rx_clear. For PHY errors this may be the current TSF when
* phy_error is asserted if the rx_clear does not assert before
* the end of the PHY error.
*
* wb_timestamp
* WLAN/BT timestamp is a 1 usec resolution timestamp which
* does not get updated based on receive beacon like TSF. The
* same rules for capturing tsf_timestamp are used to capture
* the wb_timestamp.
*
* locationing_timestamp
* Timestamp used for locationing. This timestamp is used to
* indicate fractions of usec. For example if the MAC clock is
* running at 80 MHz, the timestamp will increment every 12.5
* nsec. The value starts at 0 and increments to 79 and
* returns to 0 and repeats. This information is valid for
* every PPDU. This information can be used in conjunction
* with wb_timestamp to capture large delta times.
*
* phy_err_code
* See the 1.10.8.1.2 for the list of the PHY error codes.
*
* phy_err
* Indicates a PHY error was detected for this PPDU.
*
* rx_location
* Indicates that location information was requested.
*
* txbf_h_info
* Indicates that the packet data carries H information which
* is used for TxBF debug.
*
* reserved_18
* Reserved: HW should fill with 0, FW should ignore.
*
* rx_antenna
* Receive antenna value
*
* tx_ht_vht_ack
* Indicates that a HT or VHT Ack/BA frame was transmitted in
* response to this receive packet.
*
* bb_captured_channel
* Indicates that the BB has captured a channel dump. FW can
* then read the channel dump memory. This may indicate that
* the channel was captured either based on PCU setting the
* capture_channel bit BB descriptor or FW setting the
* capture_channel mode bit.
*
* reserved_19
* Reserved: HW should fill with 0, FW should ignore.
*
* bb_length
* Indicates the number of bytes of baseband information for
* PPDUs where the BB descriptor preamble type is 0x80 to 0xFF
* which indicates that this is not a normal PPDU but rather
* contains baseband debug information.
*
* reserved_20
* Reserved: HW should fill with 0, FW should ignore.
*
* ppdu_done
* PPDU end status is only valid when ppdu_done bit is set.
* Every time HW sets this bit in memory FW/SW must clear this
* bit in memory. FW will initialize all the ppdu_done dword
* to 0.
*/
#define FW_RX_DESC_INFO0_DISCARD (1 << 0)
#define FW_RX_DESC_INFO0_FORWARD (1 << 1)
#define FW_RX_DESC_INFO0_INSPECT (1 << 5)
#define FW_RX_DESC_INFO0_EXT_MASK 0xC0
#define FW_RX_DESC_INFO0_EXT_LSB 6
struct fw_rx_desc_base {
u8 info0;
} __packed;
#endif /* _RX_DESC_H_ */
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