1/* 2 * This file is part of wl1271 3 * 4 * Copyright (C) 1998-2009 Texas Instruments. All rights reserved. 5 * Copyright (C) 2008-2009 Nokia Corporation 6 * 7 * Contact: Luciano Coelho <luciano.coelho@nokia.com> 8 * 9 * This program is free software; you can redistribute it and/or 10 * modify it under the terms of the GNU General Public License 11 * version 2 as published by the Free Software Foundation. 12 * 13 * This program is distributed in the hope that it will be useful, but 14 * WITHOUT ANY WARRANTY; without even the implied warranty of 15 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 16 * General Public License for more details. 17 * 18 * You should have received a copy of the GNU General Public License 19 * along with this program; if not, write to the Free Software 20 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA 21 * 02110-1301 USA 22 * 23 */ 24 25#ifndef __WL1271_RX_H__ 26#define __WL1271_RX_H__ 27 28#include <linux/bitops.h> 29 30#define WL1271_RX_MAX_RSSI -30 31#define WL1271_RX_MIN_RSSI -95 32 33#define WL1271_RX_ALIGN_TO 4 34#define WL1271_RX_ALIGN(len) (((len) + WL1271_RX_ALIGN_TO - 1) & \ 35 ~(WL1271_RX_ALIGN_TO - 1)) 36 37#define SHORT_PREAMBLE_BIT BIT(0) 38#define OFDM_RATE_BIT BIT(6) 39#define PBCC_RATE_BIT BIT(7) 40 41#define PLCP_HEADER_LENGTH 8 42#define RX_DESC_PACKETID_SHIFT 11 43#define RX_MAX_PACKET_ID 3 44 45#define NUM_RX_PKT_DESC_MOD_MASK 7 46#define WL1271_RX_RATE_UNSUPPORTED 0xFF 47 48#define RX_DESC_VALID_FCS 0x0001 49#define RX_DESC_MATCH_RXADDR1 0x0002 50#define RX_DESC_MCAST 0x0004 51#define RX_DESC_STAINTIM 0x0008 52#define RX_DESC_VIRTUAL_BM 0x0010 53#define RX_DESC_BCAST 0x0020 54#define RX_DESC_MATCH_SSID 0x0040 55#define RX_DESC_MATCH_BSSID 0x0080 56#define RX_DESC_ENCRYPTION_MASK 0x0300 57#define RX_DESC_MEASURMENT 0x0400 58#define RX_DESC_SEQNUM_MASK 0x1800 59#define RX_DESC_MIC_FAIL 0x2000 60#define RX_DESC_DECRYPT_FAIL 0x4000 61 62/* 63 * RX Descriptor flags: 64 * 65 * Bits 0-1 - band 66 * Bit 2 - STBC 67 * Bit 3 - A-MPDU 68 * Bit 4 - HT 69 * Bits 5-7 - encryption 70 */ 71#define WL1271_RX_DESC_BAND_MASK 0x03 72#define WL1271_RX_DESC_ENCRYPT_MASK 0xE0 73 74#define WL1271_RX_DESC_BAND_BG 0x00 75#define WL1271_RX_DESC_BAND_J 0x01 76#define WL1271_RX_DESC_BAND_A 0x02 77 78#define WL1271_RX_DESC_STBC BIT(2) 79#define WL1271_RX_DESC_A_MPDU BIT(3) 80#define WL1271_RX_DESC_HT BIT(4) 81 82#define WL1271_RX_DESC_ENCRYPT_WEP 0x20 83#define WL1271_RX_DESC_ENCRYPT_TKIP 0x40 84#define WL1271_RX_DESC_ENCRYPT_AES 0x60 85#define WL1271_RX_DESC_ENCRYPT_GEM 0x80 86 87/* 88 * RX Descriptor status 89 * 90 * Bits 0-2 - status 91 * Bits 3-7 - reserved 92 */ 93#define WL1271_RX_DESC_STATUS_MASK 0x07 94 95#define WL1271_RX_DESC_SUCCESS 0x00 96#define WL1271_RX_DESC_DECRYPT_FAIL 0x01 97#define WL1271_RX_DESC_MIC_FAIL 0x02 98#define WL1271_RX_DESC_DRIVER_RX_Q_FAIL 0x03 99 100#define RX_MEM_BLOCK_MASK 0xFF 101#define RX_BUF_SIZE_MASK 0xFFF00 102#define RX_BUF_SIZE_SHIFT_DIV 6 103 104struct wl1271_rx_descriptor { 105 u16 length; 106 u8 status; 107 u8 flags; 108 u8 rate; 109 u8 channel; 110 s8 rssi; 111 u8 snr; 112 u32 timestamp; 113 u8 packet_class; 114 u8 process_id; 115 u8 pad_len; 116 u8 reserved; 117} __attribute__ ((packed)); 118 119void wl1271_rx(struct wl1271 *wl, struct wl1271_fw_status *status); 120 121#endif 122