/* SPDX-License-Identifier: GPL-2.0-only */ /* * This file is part of wl1251 * * Copyright (c) 1998-2007 Texas Instruments Incorporated * Copyright (C) 2008 Nokia Corporation */ #ifndef __WL1251_RX_H__ #define __WL1251_RX_H__ #include <linux/bitops.h> #include "wl1251.h" /* * RX PATH * * The Rx path uses a double buffer and an rx_contro structure, each located * at a fixed address in the device memory. The host keeps track of which * buffer is available and alternates between them on a per packet basis. * The size of each of the two buffers is large enough to hold the longest * 802.3 packet. * The RX path goes like that: * 1) The target generates an interrupt each time a new packet is received. * There are 2 RX interrupts, one for each buffer. * 2) The host reads the received packet from one of the double buffers. * 3) The host triggers a target interrupt. * 4) The target prepares the next RX packet. */ #define WL1251_RX_MAX_RSSI … #define WL1251_RX_MIN_RSSI … #define WL1251_RX_ALIGN_TO … #define WL1251_RX_ALIGN(len) … #define SHORT_PREAMBLE_BIT … #define OFDM_RATE_BIT … #define PBCC_RATE_BIT … #define PLCP_HEADER_LENGTH … #define RX_DESC_PACKETID_SHIFT … #define RX_MAX_PACKET_ID … #define RX_DESC_VALID_FCS … #define RX_DESC_MATCH_RXADDR1 … #define RX_DESC_MCAST … #define RX_DESC_STAINTIM … #define RX_DESC_VIRTUAL_BM … #define RX_DESC_BCAST … #define RX_DESC_MATCH_SSID … #define RX_DESC_MATCH_BSSID … #define RX_DESC_ENCRYPTION_MASK … #define RX_DESC_MEASURMENT … #define RX_DESC_SEQNUM_MASK … #define RX_DESC_MIC_FAIL … #define RX_DESC_DECRYPT_FAIL … struct wl1251_rx_descriptor { … } __packed; void wl1251_rx(struct wl1251 *wl); #endif
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