21971f3e0e
This patch fixes the checkpatch issue by removing the Free Software Foundation's mailing address from the sample GPL notice. Because the FSF has changed address in the past, and may change again. Linux already includes a copy of the GPL. Signed-off-by: Varsha Rao <rvarsha016@gmail.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
261 lines
6.4 KiB
C
261 lines
6.4 KiB
C
/*
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* Copyright (c) 1996, 2003 VIA Networking Technologies, Inc.
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* All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* File: desc.h
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*
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* Purpose:The header file of descriptor
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*
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* Revision History:
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*
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* Author: Tevin Chen
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*
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* Date: May 21, 1996
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*
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*/
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#ifndef __DESC_H__
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#define __DESC_H__
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#include <linux/types.h>
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#include <linux/mm.h>
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#include "linux/ieee80211.h"
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#define B_OWNED_BY_CHIP 1
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#define B_OWNED_BY_HOST 0
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/* Bits in the RSR register */
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#define RSR_ADDRBROAD 0x80
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#define RSR_ADDRMULTI 0x40
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#define RSR_ADDRUNI 0x00
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#define RSR_IVLDTYP 0x20
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#define RSR_IVLDLEN 0x10 /* invalid len (> 2312 byte) */
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#define RSR_BSSIDOK 0x08
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#define RSR_CRCOK 0x04
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#define RSR_BCNSSIDOK 0x02
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#define RSR_ADDROK 0x01
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/* Bits in the new RSR register */
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#define NEWRSR_DECRYPTOK 0x10
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#define NEWRSR_CFPIND 0x08
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#define NEWRSR_HWUTSF 0x04
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#define NEWRSR_BCNHITAID 0x02
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#define NEWRSR_BCNHITAID0 0x01
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/* Bits in the TSR0 register */
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#define TSR0_PWRSTS1_2 0xC0
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#define TSR0_PWRSTS7 0x20
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#define TSR0_NCR 0x1F
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/* Bits in the TSR1 register */
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#define TSR1_TERR 0x80
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#define TSR1_PWRSTS4_6 0x70
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#define TSR1_RETRYTMO 0x08
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#define TSR1_TMO 0x04
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#define TSR1_PWRSTS3 0x02
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#define ACK_DATA 0x01
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/* Bits in the TCR register */
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#define EDMSDU 0x04 /* end of sdu */
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#define TCR_EDP 0x02 /* end of packet */
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#define TCR_STP 0x01 /* start of packet */
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/* max transmit or receive buffer size */
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#define CB_MAX_BUF_SIZE 2900U
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/* NOTE: must be multiple of 4 */
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#define CB_MAX_TX_BUF_SIZE CB_MAX_BUF_SIZE
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#define CB_MAX_RX_BUF_SIZE_NORMAL CB_MAX_BUF_SIZE
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#define CB_BEACON_BUF_SIZE 512U
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#define CB_MAX_RX_DESC 128
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#define CB_MIN_RX_DESC 16
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#define CB_MAX_TX_DESC 64
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#define CB_MIN_TX_DESC 16
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#define CB_MAX_RECEIVED_PACKETS 16
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/*
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* limit our receive routine to indicating
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* this many at a time for 2 reasons:
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* 1. driver flow control to protocol layer
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* 2. limit the time used in ISR routine
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*/
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#define CB_EXTRA_RD_NUM 32
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#define CB_RD_NUM 32
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#define CB_TD_NUM 32
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/*
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* max number of physical segments in a single NDIS packet. Above this
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* threshold, the packet is copied into a single physically contiguous buffer
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*/
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#define CB_MAX_SEGMENT 4
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#define CB_MIN_MAP_REG_NUM 4
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#define CB_MAX_MAP_REG_NUM CB_MAX_TX_DESC
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#define CB_PROTOCOL_RESERVED_SECTION 16
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/*
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* if retrys excess 15 times , tx will abort, and if tx fifo underflow,
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* tx will fail, we should try to resend it
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*/
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#define CB_MAX_TX_ABORT_RETRY 3
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/* WMAC definition FIFO Control */
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#define FIFOCTL_AUTO_FB_1 0x1000
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#define FIFOCTL_AUTO_FB_0 0x0800
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#define FIFOCTL_GRPACK 0x0400
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#define FIFOCTL_11GA 0x0300
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#define FIFOCTL_11GB 0x0200
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#define FIFOCTL_11B 0x0100
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#define FIFOCTL_11A 0x0000
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#define FIFOCTL_RTS 0x0080
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#define FIFOCTL_ISDMA0 0x0040
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#define FIFOCTL_GENINT 0x0020
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#define FIFOCTL_TMOEN 0x0010
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#define FIFOCTL_LRETRY 0x0008
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#define FIFOCTL_CRCDIS 0x0004
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#define FIFOCTL_NEEDACK 0x0002
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#define FIFOCTL_LHEAD 0x0001
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/* WMAC definition Frag Control */
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#define FRAGCTL_AES 0x0300
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#define FRAGCTL_TKIP 0x0200
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#define FRAGCTL_LEGACY 0x0100
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#define FRAGCTL_NONENCRYPT 0x0000
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#define FRAGCTL_ENDFRAG 0x0003
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#define FRAGCTL_MIDFRAG 0x0002
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#define FRAGCTL_STAFRAG 0x0001
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#define FRAGCTL_NONFRAG 0x0000
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#define TYPE_TXDMA0 0
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#define TYPE_AC0DMA 1
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#define TYPE_ATIMDMA 2
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#define TYPE_SYNCDMA 3
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#define TYPE_MAXTD 2
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#define TYPE_BEACONDMA 4
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#define TYPE_RXDMA0 0
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#define TYPE_RXDMA1 1
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#define TYPE_MAXRD 2
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/* TD_INFO flags control bit */
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#define TD_FLAGS_NETIF_SKB 0x01 /* check if need release skb */
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/* check if called from private skb (hostap) */
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#define TD_FLAGS_PRIV_SKB 0x02
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#define TD_FLAGS_PS_RETRY 0x04 /* check if PS STA frame re-transmit */
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/*
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* ref_sk_buff is used for mapping the skb structure between pre-built
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* driver-obj & running kernel. Since different kernel version (2.4x) may
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* change skb structure, i.e. pre-built driver-obj may link to older skb that
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* leads error.
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*/
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struct vnt_rd_info {
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struct sk_buff *skb;
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dma_addr_t skb_dma;
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};
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struct vnt_rdes0 {
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volatile __le16 res_count;
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#ifdef __BIG_ENDIAN
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union {
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volatile u16 f15_reserved;
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struct {
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volatile u8 f8_reserved1;
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volatile u8 owner:1;
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volatile u8 f7_reserved:7;
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} __packed;
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} __packed;
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#else
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u16 f15_reserved:15;
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u16 owner:1;
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#endif
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} __packed;
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struct vnt_rdes1 {
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__le16 req_count;
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u16 reserved;
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} __packed;
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/* Rx descriptor*/
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struct vnt_rx_desc {
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volatile struct vnt_rdes0 rd0;
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volatile struct vnt_rdes1 rd1;
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volatile __le32 buff_addr;
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volatile __le32 next_desc;
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struct vnt_rx_desc *next __aligned(8);
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struct vnt_rd_info *rd_info __aligned(8);
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} __packed;
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struct vnt_tdes0 {
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volatile u8 tsr0;
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volatile u8 tsr1;
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#ifdef __BIG_ENDIAN
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union {
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volatile u16 f15_txtime;
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struct {
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volatile u8 f8_reserved;
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volatile u8 owner:1;
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volatile u8 f7_reserved:7;
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} __packed;
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} __packed;
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#else
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volatile u16 f15_txtime:15;
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volatile u16 owner:1;
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#endif
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} __packed;
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struct vnt_tdes1 {
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volatile __le16 req_count;
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volatile u8 tcr;
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volatile u8 reserved;
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} __packed;
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struct vnt_td_info {
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void *mic_hdr;
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struct sk_buff *skb;
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unsigned char *buf;
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dma_addr_t buf_dma;
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u16 req_count;
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u8 flags;
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};
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/* transmit descriptor */
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struct vnt_tx_desc {
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volatile struct vnt_tdes0 td0;
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volatile struct vnt_tdes1 td1;
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volatile __le32 buff_addr;
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volatile __le32 next_desc;
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struct vnt_tx_desc *next __aligned(8);
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struct vnt_td_info *td_info __aligned(8);
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} __packed;
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/* Length, Service, and Signal fields of Phy for Tx */
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struct vnt_phy_field {
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u8 signal;
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u8 service;
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__le16 len;
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} __packed;
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union vnt_phy_field_swap {
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struct vnt_phy_field field_read;
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u16 swap[2];
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u32 field_write;
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};
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#endif /* __DESC_H__ */
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