| /* |
| * This file is part of wl1271 |
| * |
| * Copyright (C) 1998-2009 Texas Instruments. All rights reserved. |
| * Copyright (C) 2008-2009 Nokia Corporation |
| * |
| * Contact: Luciano Coelho <luciano.coelho@nokia.com> |
| * |
| * This program is free software; you can redistribute it and/or |
| * modify it under the terms of the GNU General Public License |
| * version 2 as published by the Free Software Foundation. |
| * |
| * This program is distributed in the hope that it will be useful, but |
| * WITHOUT ANY WARRANTY; without even the implied warranty of |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| * General Public License for more details. |
| * |
| * You should have received a copy of the GNU General Public License |
| * along with this program; if not, write to the Free Software |
| * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA |
| * 02110-1301 USA |
| * |
| */ |
| |
| #ifndef __RX_H__ |
| #define __RX_H__ |
| |
| #include <linux/bitops.h> |
| |
| #define WL1271_RX_MAX_RSSI -30 |
| #define WL1271_RX_MIN_RSSI -95 |
| |
| #define SHORT_PREAMBLE_BIT BIT(0) |
| #define OFDM_RATE_BIT BIT(6) |
| #define PBCC_RATE_BIT BIT(7) |
| |
| #define PLCP_HEADER_LENGTH 8 |
| #define RX_DESC_PACKETID_SHIFT 11 |
| #define RX_MAX_PACKET_ID 3 |
| |
| #define NUM_RX_PKT_DESC_MOD_MASK 7 |
| |
| #define RX_DESC_VALID_FCS 0x0001 |
| #define RX_DESC_MATCH_RXADDR1 0x0002 |
| #define RX_DESC_MCAST 0x0004 |
| #define RX_DESC_STAINTIM 0x0008 |
| #define RX_DESC_VIRTUAL_BM 0x0010 |
| #define RX_DESC_BCAST 0x0020 |
| #define RX_DESC_MATCH_SSID 0x0040 |
| #define RX_DESC_MATCH_BSSID 0x0080 |
| #define RX_DESC_ENCRYPTION_MASK 0x0300 |
| #define RX_DESC_MEASURMENT 0x0400 |
| #define RX_DESC_SEQNUM_MASK 0x1800 |
| #define RX_DESC_MIC_FAIL 0x2000 |
| #define RX_DESC_DECRYPT_FAIL 0x4000 |
| |
| /* |
| * RX Descriptor flags: |
| * |
| * Bits 0-1 - band |
| * Bit 2 - STBC |
| * Bit 3 - A-MPDU |
| * Bit 4 - HT |
| * Bits 5-7 - encryption |
| */ |
| #define WL1271_RX_DESC_BAND_MASK 0x03 |
| #define WL1271_RX_DESC_ENCRYPT_MASK 0xE0 |
| |
| #define WL1271_RX_DESC_BAND_BG 0x00 |
| #define WL1271_RX_DESC_BAND_J 0x01 |
| #define WL1271_RX_DESC_BAND_A 0x02 |
| |
| #define WL1271_RX_DESC_STBC BIT(2) |
| #define WL1271_RX_DESC_A_MPDU BIT(3) |
| #define WL1271_RX_DESC_HT BIT(4) |
| |
| #define WL1271_RX_DESC_ENCRYPT_WEP 0x20 |
| #define WL1271_RX_DESC_ENCRYPT_TKIP 0x40 |
| #define WL1271_RX_DESC_ENCRYPT_AES 0x60 |
| #define WL1271_RX_DESC_ENCRYPT_GEM 0x80 |
| |
| /* |
| * RX Descriptor status |
| * |
| * Bits 0-2 - error code |
| * Bits 3-5 - process_id tag (AP mode FW) |
| * Bits 6-7 - reserved |
| */ |
| #define WL1271_RX_DESC_STATUS_MASK 0x03 |
| |
| #define WL1271_RX_DESC_SUCCESS 0x00 |
| #define WL1271_RX_DESC_DECRYPT_FAIL 0x01 |
| #define WL1271_RX_DESC_MIC_FAIL 0x02 |
| #define WL1271_RX_DESC_DRIVER_RX_Q_FAIL 0x03 |
| |
| #define RX_MEM_BLOCK_MASK 0xFF |
| #define RX_BUF_SIZE_MASK 0xFFF00 |
| #define RX_BUF_SIZE_SHIFT_DIV 6 |
| #define ALIGNED_RX_BUF_SIZE_MASK 0xFFFF00 |
| #define ALIGNED_RX_BUF_SIZE_SHIFT 8 |
| |
| /* If set, the start of IP payload is not 4 bytes aligned */ |
| #define RX_BUF_UNALIGNED_PAYLOAD BIT(20) |
| |
| /* Describes the alignment state of a Rx buffer */ |
| enum wl_rx_buf_align { |
| WLCORE_RX_BUF_ALIGNED, |
| WLCORE_RX_BUF_UNALIGNED, |
| WLCORE_RX_BUF_PADDED, |
| }; |
| |
| enum { |
| WL12XX_RX_CLASS_UNKNOWN, |
| WL12XX_RX_CLASS_MANAGEMENT, |
| WL12XX_RX_CLASS_DATA, |
| WL12XX_RX_CLASS_QOS_DATA, |
| WL12XX_RX_CLASS_BCN_PRBRSP, |
| WL12XX_RX_CLASS_EAPOL, |
| WL12XX_RX_CLASS_BA_EVENT, |
| WL12XX_RX_CLASS_AMSDU, |
| WL12XX_RX_CLASS_LOGGER, |
| }; |
| |
| struct wl1271_rx_descriptor { |
| __le16 length; |
| u8 status; |
| u8 flags; |
| u8 rate; |
| u8 channel; |
| s8 rssi; |
| u8 snr; |
| __le32 timestamp; |
| u8 packet_class; |
| u8 hlid; |
| u8 pad_len; |
| u8 reserved; |
| } __packed; |
| |
| void wl12xx_rx(struct wl1271 *wl, struct wl_fw_status *status); |
| u8 wl1271_rate_to_idx(int rate, enum ieee80211_band band); |
| |
| #endif |
