414 lines
17 KiB
C
Executable File
414 lines
17 KiB
C
Executable File
/*
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* Copyright (C) 1999-2019, Broadcom.
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*
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* Unless you and Broadcom execute a separate written software license
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* agreement governing use of this software, this software is licensed to you
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* under the terms of the GNU General Public License version 2 (the "GPL"),
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* available at http://www.broadcom.com/licenses/GPLv2.php, with the
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* following added to such license:
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*
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* As a special exception, the copyright holders of this software give you
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* permission to link this software with independent modules, and to copy and
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* distribute the resulting executable under terms of your choice, provided that
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* you also meet, for each linked independent module, the terms and conditions of
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* the license of that module. An independent module is a module which is not
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* derived from this software. The special exception does not apply to any
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* modifications of the software.
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*
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* Notwithstanding the above, under no circumstances may you combine this
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* software in any way with any other Broadcom software provided under a license
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* other than the GPL, without Broadcom's express prior written consent.
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*
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*
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* <<Broadcom-WL-IPTag/Open:>>
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*
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* $Id: wlfc_proto.h 735303 2017-12-08 06:20:29Z $
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*
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*/
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/** WL flow control for PROP_TXSTATUS. Related to host AMPDU reordering. */
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#ifndef __wlfc_proto_definitions_h__
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#define __wlfc_proto_definitions_h__
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/* Use TLV to convey WLFC information.
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---------------------------------------------------------------------------
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| Type | Len | value | Description
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---------------------------------------------------------------------------
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| 1 | 1 | (handle) | MAC OPEN
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---------------------------------------------------------------------------
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| 2 | 1 | (handle) | MAC CLOSE
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---------------------------------------------------------------------------
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| 3 | 2 | (count, handle, prec_bmp)| Set the credit depth for a MAC dstn
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---------------------------------------------------------------------------
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| 4 | 4+ | see pkttag comments | TXSTATUS
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| | 12 | TX status & timestamps | Present only when pkt timestamp is enabled
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---------------------------------------------------------------------------
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| 5 | 4 | see pkttag comments | PKKTTAG [host->firmware]
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---------------------------------------------------------------------------
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| 6 | 8 | (handle, ifid, MAC) | MAC ADD
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---------------------------------------------------------------------------
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| 7 | 8 | (handle, ifid, MAC) | MAC DEL
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---------------------------------------------------------------------------
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| 8 | 1 | (rssi) | RSSI - RSSI value for the packet.
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---------------------------------------------------------------------------
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| 9 | 1 | (interface ID) | Interface OPEN
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---------------------------------------------------------------------------
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| 10 | 1 | (interface ID) | Interface CLOSE
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---------------------------------------------------------------------------
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| 11 | 8 | fifo credit returns map | FIFO credits back to the host
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| | | |
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| | | | --------------------------------------
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| | | | | ac0 | ac1 | ac2 | ac3 | bcmc | atim |
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| | | | --------------------------------------
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| | | |
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---------------------------------------------------------------------------
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| 12 | 2 | MAC handle, | Host provides a bitmap of pending
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| | | AC[0-3] traffic bitmap | unicast traffic for MAC-handle dstn.
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| | | | [host->firmware]
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---------------------------------------------------------------------------
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| 13 | 3 | (count, handle, prec_bmp)| One time request for packet to a specific
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| | | | MAC destination.
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---------------------------------------------------------------------------
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| 15 | 12 | (pkttag, timestamps) | Send TX timestamp at reception from host
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---------------------------------------------------------------------------
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| 16 | 12 | (pkttag, timestamps) | Send WLAN RX timestamp along with RX frame
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---------------------------------------------------------------------------
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| 255 | N/A | N/A | FILLER - This is a special type
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| | | | that has no length or value.
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| | | | Typically used for padding.
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---------------------------------------------------------------------------
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*/
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typedef enum {
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WLFC_CTL_TYPE_MAC_OPEN = 1,
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WLFC_CTL_TYPE_MAC_CLOSE = 2,
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WLFC_CTL_TYPE_MAC_REQUEST_CREDIT = 3,
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WLFC_CTL_TYPE_TXSTATUS = 4,
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WLFC_CTL_TYPE_PKTTAG = 5, /** host<->dongle */
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WLFC_CTL_TYPE_MACDESC_ADD = 6,
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WLFC_CTL_TYPE_MACDESC_DEL = 7,
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WLFC_CTL_TYPE_RSSI = 8,
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WLFC_CTL_TYPE_INTERFACE_OPEN = 9,
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WLFC_CTL_TYPE_INTERFACE_CLOSE = 10,
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WLFC_CTL_TYPE_FIFO_CREDITBACK = 11,
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WLFC_CTL_TYPE_PENDING_TRAFFIC_BMP = 12, /** host->dongle */
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WLFC_CTL_TYPE_MAC_REQUEST_PACKET = 13,
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WLFC_CTL_TYPE_HOST_REORDER_RXPKTS = 14,
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WLFC_CTL_TYPE_TX_ENTRY_STAMP = 15,
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WLFC_CTL_TYPE_RX_STAMP = 16,
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WLFC_CTL_TYPE_TX_STATUS_STAMP = 17, /** obsolete */
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WLFC_CTL_TYPE_TRANS_ID = 18,
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WLFC_CTL_TYPE_COMP_TXSTATUS = 19,
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WLFC_CTL_TYPE_TID_OPEN = 20,
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WLFC_CTL_TYPE_TID_CLOSE = 21,
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WLFC_CTL_TYPE_UPD_FLR_WEIGHT = 22,
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WLFC_CTL_TYPE_ENAB_FFSCH = 23,
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WLFC_CTL_TYPE_UPDATE_FLAGS = 24, /* clear the flags set in flowring */
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WLFC_CTL_TYPE_CLEAR_SUPPR = 25, /* free the supression info in the flowring */
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WLFC_CTL_TYPE_FLOWID_OPEN = 26,
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WLFC_CTL_TYPE_FLOWID_CLOSE = 27,
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WLFC_CTL_TYPE_FILLER = 255
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} wlfc_ctl_type_t;
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#define WLFC_CTL_VALUE_LEN_FLOWID 2
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#define WLFC_CTL_VALUE_LEN_MACDESC 8 /** handle, interface, MAC */
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#define WLFC_CTL_VALUE_LEN_MAC 1 /** MAC-handle */
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#define WLFC_CTL_VALUE_LEN_RSSI 1
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#define WLFC_CTL_VALUE_LEN_INTERFACE 1
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#define WLFC_CTL_VALUE_LEN_PENDING_TRAFFIC_BMP 2
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#define WLFC_CTL_VALUE_LEN_TXSTATUS 4
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#define WLFC_CTL_VALUE_LEN_PKTTAG 4
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#define WLFC_CTL_VALUE_LEN_TIMESTAMP 12 /** 4-byte rate info + 2 TSF */
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#define WLFC_CTL_VALUE_LEN_SEQ 2
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/* Reset the flags set for the corresponding flowring of the SCB which is de-inited */
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/* FLOW_RING_FLAG_LAST_TIM | FLOW_RING_FLAG_INFORM_PKTPEND | FLOW_RING_FLAG_PKT_REQ */
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#define WLFC_RESET_ALL_FLAGS 0
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#define WLFC_CTL_VALUE_LEN_FLAGS 7 /** flags, MAC */
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/* free the data stored to be used for suppressed packets in future */
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#define WLFC_CTL_VALUE_LEN_SUPR 7 /** tid, MAC */
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/* The high bits of ratespec report in timestamp are used for various status */
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#define WLFC_TSFLAGS_RX_RETRY (1 << 31)
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#define WLFC_TSFLAGS_PM_ENABLED (1 << 30)
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#define WLFC_TSFLAGS_MASK (WLFC_TSFLAGS_RX_RETRY | WLFC_TSFLAGS_PM_ENABLED)
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/* enough space to host all 4 ACs, bc/mc and atim fifo credit */
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#define WLFC_CTL_VALUE_LEN_FIFO_CREDITBACK 6
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#define WLFC_CTL_VALUE_LEN_REQUEST_CREDIT 3 /* credit, MAC-handle, prec_bitmap */
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#define WLFC_CTL_VALUE_LEN_REQUEST_PACKET 3 /* credit, MAC-handle, prec_bitmap */
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#define WLFC_PKTFLAG_PKTFROMHOST 0x01
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#define WLFC_PKTFLAG_PKT_REQUESTED 0x02
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#define WLFC_PKTFLAG_PKT_SENDTOHOST 0x04
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#define WL_TXSTATUS_STATUS_MASK 0xff /* allow 8 bits */
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#define WL_TXSTATUS_STATUS_SHIFT 24
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#define WL_TXSTATUS_SET_STATUS(x, status) ((x) = \
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((x) & ~(WL_TXSTATUS_STATUS_MASK << WL_TXSTATUS_STATUS_SHIFT)) | \
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(((status) & WL_TXSTATUS_STATUS_MASK) << WL_TXSTATUS_STATUS_SHIFT))
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#define WL_TXSTATUS_GET_STATUS(x) (((x) >> WL_TXSTATUS_STATUS_SHIFT) & \
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WL_TXSTATUS_STATUS_MASK)
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/**
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* Bit 31 of the 32-bit packet tag is defined as 'generation ID'. It is set by the host to the
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* "current" generation, and by the firmware to the "expected" generation, toggling on suppress. The
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* firmware accepts a packet when the generation matches; on reset (startup) both "current" and
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* "expected" are set to 0.
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*/
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#define WL_TXSTATUS_GENERATION_MASK 1 /* allow 1 bit */
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#define WL_TXSTATUS_GENERATION_SHIFT 31
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#define WL_TXSTATUS_SET_GENERATION(x, gen) ((x) = \
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((x) & ~(WL_TXSTATUS_GENERATION_MASK << WL_TXSTATUS_GENERATION_SHIFT)) | \
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(((gen) & WL_TXSTATUS_GENERATION_MASK) << WL_TXSTATUS_GENERATION_SHIFT))
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#define WL_TXSTATUS_GET_GENERATION(x) (((x) >> WL_TXSTATUS_GENERATION_SHIFT) & \
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WL_TXSTATUS_GENERATION_MASK)
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#define WL_TXSTATUS_FLAGS_MASK 0xf /* allow 4 bits only */
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#define WL_TXSTATUS_FLAGS_SHIFT 27
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#define WL_TXSTATUS_SET_FLAGS(x, flags) ((x) = \
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((x) & ~(WL_TXSTATUS_FLAGS_MASK << WL_TXSTATUS_FLAGS_SHIFT)) | \
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(((flags) & WL_TXSTATUS_FLAGS_MASK) << WL_TXSTATUS_FLAGS_SHIFT))
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#define WL_TXSTATUS_GET_FLAGS(x) (((x) >> WL_TXSTATUS_FLAGS_SHIFT) & \
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WL_TXSTATUS_FLAGS_MASK)
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#define WL_TXSTATUS_FIFO_MASK 0x7 /* allow 3 bits for FIFO ID */
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#define WL_TXSTATUS_FIFO_SHIFT 24
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#define WL_TXSTATUS_SET_FIFO(x, flags) ((x) = \
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((x) & ~(WL_TXSTATUS_FIFO_MASK << WL_TXSTATUS_FIFO_SHIFT)) | \
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(((flags) & WL_TXSTATUS_FIFO_MASK) << WL_TXSTATUS_FIFO_SHIFT))
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#define WL_TXSTATUS_GET_FIFO(x) (((x) >> WL_TXSTATUS_FIFO_SHIFT) & WL_TXSTATUS_FIFO_MASK)
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#define WL_TXSTATUS_PKTID_MASK 0xffffff /* allow 24 bits */
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#define WL_TXSTATUS_SET_PKTID(x, num) ((x) = \
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((x) & ~WL_TXSTATUS_PKTID_MASK) | (num))
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#define WL_TXSTATUS_GET_PKTID(x) ((x) & WL_TXSTATUS_PKTID_MASK)
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#define WL_TXSTATUS_HSLOT_MASK 0xffff /* allow 16 bits */
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#define WL_TXSTATUS_HSLOT_SHIFT 8
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#define WL_TXSTATUS_SET_HSLOT(x, hslot) ((x) = \
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((x) & ~(WL_TXSTATUS_HSLOT_MASK << WL_TXSTATUS_HSLOT_SHIFT)) | \
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(((hslot) & WL_TXSTATUS_HSLOT_MASK) << WL_TXSTATUS_HSLOT_SHIFT))
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#define WL_TXSTATUS_GET_HSLOT(x) (((x) >> WL_TXSTATUS_HSLOT_SHIFT)& \
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WL_TXSTATUS_HSLOT_MASK)
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#define WL_TXSTATUS_FREERUNCTR_MASK 0xff /* allow 8 bits */
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#define WL_TXSTATUS_SET_FREERUNCTR(x, ctr) ((x) = \
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((x) & ~(WL_TXSTATUS_FREERUNCTR_MASK)) | \
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((ctr) & WL_TXSTATUS_FREERUNCTR_MASK))
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#define WL_TXSTATUS_GET_FREERUNCTR(x) ((x)& WL_TXSTATUS_FREERUNCTR_MASK)
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/* AMSDU part of d11 seq number */
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#define WL_SEQ_AMSDU_MASK 0x1 /* allow 1 bit */
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#define WL_SEQ_AMSDU_SHIFT 14
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#define WL_SEQ_SET_AMSDU(x, val) ((x) = \
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((x) & ~(WL_SEQ_AMSDU_MASK << WL_SEQ_AMSDU_SHIFT)) | \
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(((val) & WL_SEQ_AMSDU_MASK) << WL_SEQ_AMSDU_SHIFT)) /**< sets a single AMSDU bit */
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/** returns TRUE if ring item is AMSDU (seq = d11 seq nr) */
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#define WL_SEQ_IS_AMSDU(x) (((x) >> WL_SEQ_AMSDU_SHIFT) & \
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WL_SEQ_AMSDU_MASK)
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/* indicates last_suppr_seq is valid */
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#define WL_SEQ_VALIDSUPPR_MASK 0x1 /* allow 1 bit */
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#define WL_SEQ_VALIDSUPPR_SHIFT 12
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#define WL_SEQ_SET_VALIDSUPPR(x, val) ((x) = \
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((x) & ~(WL_SEQ_VALIDSUPPR_MASK << WL_SEQ_VALIDSUPPR_SHIFT)) | \
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(((val) & WL_SEQ_VALIDSUPPR_MASK) << WL_SEQ_VALIDSUPPR_SHIFT))
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#define WL_SEQ_GET_VALIDSUPPR(x) (((x) >> WL_SEQ_VALIDSUPPR_SHIFT) & \
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WL_SEQ_VALIDSUPPR_MASK)
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#define WL_SEQ_FROMFW_MASK 0x1 /* allow 1 bit */
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#define WL_SEQ_FROMFW_SHIFT 13
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#define WL_SEQ_SET_FROMFW(x, val) ((x) = \
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((x) & ~(WL_SEQ_FROMFW_MASK << WL_SEQ_FROMFW_SHIFT)) | \
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(((val) & WL_SEQ_FROMFW_MASK) << WL_SEQ_FROMFW_SHIFT))
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/** Set when firmware assigns D11 sequence number to packet */
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#define SET_WL_HAS_ASSIGNED_SEQ(x) WL_SEQ_SET_FROMFW((x), 1)
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/** returns TRUE if packet has been assigned a d11 seq number by the WL firmware layer */
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#define GET_WL_HAS_ASSIGNED_SEQ(x) (((x) >> WL_SEQ_FROMFW_SHIFT) & WL_SEQ_FROMFW_MASK)
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/**
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* Proptxstatus related.
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*
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* When a packet is suppressed by WL or the D11 core, the packet has to be retried. Assigning
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* a new d11 sequence number for the packet when retrying would cause the peer to be unable to
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* reorder the packets within an AMPDU. So, suppressed packet from bus layer (DHD for SDIO and
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* pciedev for PCIE) is re-using d11 seq number, so FW should not assign a new one.
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*/
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#define WL_SEQ_FROMDRV_MASK 0x1 /* allow 1 bit */
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#define WL_SEQ_FROMDRV_SHIFT 12
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/**
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* Proptxstatus, host or fw PCIe layer requests WL layer to reuse d11 seq no. Bit is reset by WL
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* subsystem when it reuses the seq number.
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*/
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#define WL_SEQ_SET_REUSE(x, val) ((x) = \
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((x) & ~(WL_SEQ_FROMDRV_MASK << WL_SEQ_FROMDRV_SHIFT)) | \
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(((val) & WL_SEQ_FROMDRV_MASK) << WL_SEQ_FROMDRV_SHIFT))
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#define SET_WL_TO_REUSE_SEQ(x) WL_SEQ_SET_REUSE((x), 1)
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#define RESET_WL_TO_REUSE_SEQ(x) WL_SEQ_SET_REUSE((x), 0)
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/** Proptxstatus, related to reuse of d11 seq numbers when retransmitting */
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#define IS_WL_TO_REUSE_SEQ(x) (((x) >> WL_SEQ_FROMDRV_SHIFT) & \
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WL_SEQ_FROMDRV_MASK)
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#define WL_SEQ_NUM_MASK 0xfff /* allow 12 bit */
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#define WL_SEQ_NUM_SHIFT 0
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/** Proptxstatus, sets d11seq no in pkt tag, related to reuse of d11seq no when retransmitting */
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#define WL_SEQ_SET_NUM(x, val) ((x) = \
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((x) & ~(WL_SEQ_NUM_MASK << WL_SEQ_NUM_SHIFT)) | \
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(((val) & WL_SEQ_NUM_MASK) << WL_SEQ_NUM_SHIFT))
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/** Proptxstatus, gets d11seq no from pkt tag, related to reuse of d11seq no when retransmitting */
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#define WL_SEQ_GET_NUM(x) (((x) >> WL_SEQ_NUM_SHIFT) & \
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WL_SEQ_NUM_MASK)
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#define WL_SEQ_AMSDU_SUPPR_MASK ((WL_SEQ_FROMDRV_MASK << WL_SEQ_FROMDRV_SHIFT) | \
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(WL_SEQ_AMSDU_MASK << WL_SEQ_AMSDU_SHIFT) | \
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(WL_SEQ_NUM_MASK << WL_SEQ_NUM_SHIFT))
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/* 32 STA should be enough??, 6 bits; Must be power of 2 */
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#define WLFC_MAC_DESC_TABLE_SIZE 32
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#define WLFC_MAX_IFNUM 16
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#define WLFC_MAC_DESC_ID_INVALID 0xff
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/* b[7:5] -reuse guard, b[4:0] -value */
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#define WLFC_MAC_DESC_GET_LOOKUP_INDEX(x) ((x) & 0x1f)
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#define WLFC_PKTFLAG_SET_PKTREQUESTED(x) (x) |= \
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(WLFC_PKTFLAG_PKT_REQUESTED << WL_TXSTATUS_FLAGS_SHIFT)
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#define WLFC_PKTFLAG_CLR_PKTREQUESTED(x) (x) &= \
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~(WLFC_PKTFLAG_PKT_REQUESTED << WL_TXSTATUS_FLAGS_SHIFT)
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#define WLFC_MAX_PENDING_DATALEN 120
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/* host is free to discard the packet */
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#define WLFC_CTL_PKTFLAG_DISCARD 0
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/* D11 suppressed a packet */
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#define WLFC_CTL_PKTFLAG_D11SUPPRESS 1
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/* WL firmware suppressed a packet because MAC is
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already in PSMode (short time window)
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*/
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#define WLFC_CTL_PKTFLAG_WLSUPPRESS 2
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/* Firmware tossed this packet */
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#define WLFC_CTL_PKTFLAG_TOSSED_BYWLC 3
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/* Firmware tossed after retries */
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#define WLFC_CTL_PKTFLAG_DISCARD_NOACK 4
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/* Firmware wrongly reported suppressed previously,now fixing to acked */
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#define WLFC_CTL_PKTFLAG_SUPPRESS_ACKED 5
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/* Firmware send this packet expired, lifetime expiration */
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#define WLFC_CTL_PKTFLAG_EXPIRED 6
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/* Firmware drop this packet for any other reason */
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#define WLFC_CTL_PKTFLAG_DROPPED 7
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/* Firmware free this packet */
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#define WLFC_CTL_PKTFLAG_MKTFREE 8
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#define WLFC_CTL_PKTFLAG_MASK (0x0f) /* For 4-bit mask with one extra bit */
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#ifdef PROP_TXSTATUS_DEBUG
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#define WLFC_DBGMESG(x) printf x
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/* wlfc-breadcrumb */
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#define WLFC_BREADCRUMB(x) do {if ((x) == NULL) \
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{printf("WLFC: %s():%d:caller:%p\n", \
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__FUNCTION__, __LINE__, CALL_SITE);}} while (0)
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#define WLFC_WHEREIS(s) printf("WLFC: at %s():%d, %s\n", __FUNCTION__, __LINE__, (s))
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#else
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#define WLFC_DBGMESG(x)
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#define WLFC_BREADCRUMB(x)
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#define WLFC_WHEREIS(s)
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#endif /* PROP_TXSTATUS_DEBUG */
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/* AMPDU host reorder packet flags */
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#define WLHOST_REORDERDATA_MAXFLOWS 256
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#define WLHOST_REORDERDATA_LEN 10
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#define WLHOST_REORDERDATA_TOTLEN (WLHOST_REORDERDATA_LEN + 1 + 1) /* +tag +len */
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#define WLHOST_REORDERDATA_FLOWID_OFFSET 0
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#define WLHOST_REORDERDATA_MAXIDX_OFFSET 2
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#define WLHOST_REORDERDATA_FLAGS_OFFSET 4
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#define WLHOST_REORDERDATA_CURIDX_OFFSET 6
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#define WLHOST_REORDERDATA_EXPIDX_OFFSET 8
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#define WLHOST_REORDERDATA_DEL_FLOW 0x01
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#define WLHOST_REORDERDATA_FLUSH_ALL 0x02
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#define WLHOST_REORDERDATA_CURIDX_VALID 0x04
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#define WLHOST_REORDERDATA_EXPIDX_VALID 0x08
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#define WLHOST_REORDERDATA_NEW_HOLE 0x10
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/* transaction id data len byte 0: rsvd, byte 1: seqnumber, byte 2-5 will be used for timestampe */
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#define WLFC_CTL_TRANS_ID_LEN 6
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#define WLFC_TYPE_TRANS_ID_LEN 6
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#define WLFC_MODE_HANGER 1 /* use hanger */
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#define WLFC_MODE_AFQ 2 /* use afq (At Firmware Queue) */
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#define WLFC_IS_OLD_DEF(x) ((x & 1) || (x & 2))
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#define WLFC_MODE_AFQ_SHIFT 2 /* afq bit */
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#define WLFC_SET_AFQ(x, val) ((x) = \
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((x) & ~(1 << WLFC_MODE_AFQ_SHIFT)) | \
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(((val) & 1) << WLFC_MODE_AFQ_SHIFT))
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/** returns TRUE if firmware supports 'at firmware queue' feature */
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#define WLFC_GET_AFQ(x) (((x) >> WLFC_MODE_AFQ_SHIFT) & 1)
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#define WLFC_MODE_REUSESEQ_SHIFT 3 /* seq reuse bit */
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#define WLFC_SET_REUSESEQ(x, val) ((x) = \
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((x) & ~(1 << WLFC_MODE_REUSESEQ_SHIFT)) | \
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(((val) & 1) << WLFC_MODE_REUSESEQ_SHIFT))
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/** returns TRUE if 'd11 sequence reuse' has been agreed upon between host and dongle */
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#if defined(BCMPCIEDEV_ENABLED) && !defined(ROM_ENAB_RUNTIME_CHECK)
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/* GET_REUSESEQ is always TRUE in pciedev */
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#define WLFC_GET_REUSESEQ(x) (TRUE)
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#else
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#define WLFC_GET_REUSESEQ(x) (((x) >> WLFC_MODE_REUSESEQ_SHIFT) & 1)
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#endif /* defined(BCMPCIEDEV_ENABLED) && !defined(ROM_ENAB_RUNTIME_CHECK) */
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#define WLFC_MODE_REORDERSUPP_SHIFT 4 /* host reorder suppress pkt bit */
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#define WLFC_SET_REORDERSUPP(x, val) ((x) = \
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((x) & ~(1 << WLFC_MODE_REORDERSUPP_SHIFT)) | \
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(((val) & 1) << WLFC_MODE_REORDERSUPP_SHIFT))
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/** returns TRUE if 'reorder suppress' has been agreed upon between host and dongle */
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#define WLFC_GET_REORDERSUPP(x) (((x) >> WLFC_MODE_REORDERSUPP_SHIFT) & 1)
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#define FLOW_RING_CREATE 1
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#define FLOW_RING_DELETE 2
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#define FLOW_RING_FLUSH 3
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#define FLOW_RING_OPEN 4
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#define FLOW_RING_CLOSED 5
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#define FLOW_RING_FLUSHED 6
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#define FLOW_RING_TIM_SET 7
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#define FLOW_RING_TIM_RESET 8
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#define FLOW_RING_FLUSH_TXFIFO 9
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#define FLOW_RING_GET_PKT_MAX 10
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#define FLOW_RING_RESET_WEIGHT 11
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#define FLOW_RING_UPD_PRIOMAP 12
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/* bit 7, indicating if is TID(1) or AC(0) mapped info in tid field) */
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#define PCIEDEV_IS_AC_TID_MAP_MASK 0x80
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#endif /* __wlfc_proto_definitions_h__ */
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