| // SPDX-License-Identifier: GPL-2.0+ |
| /* |
| * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc. |
| * All rights reserved. |
| * |
| * File: desc.h |
| * |
| * Purpose:The header file of descriptor |
| * |
| * Revision History: |
| * |
| * Author: Tevin Chen |
| * |
| * Date: May 21, 1996 |
| * |
| */ |
| |
| #ifndef __DESC_H__ |
| #define __DESC_H__ |
| |
| #include <linux/types.h> |
| #include <linux/mm.h> |
| #include "linux/ieee80211.h" |
| |
| #define B_OWNED_BY_CHIP 1 |
| #define B_OWNED_BY_HOST 0 |
| |
| /* Bits in the RSR register */ |
| #define RSR_ADDRBROAD 0x80 |
| #define RSR_ADDRMULTI 0x40 |
| #define RSR_ADDRUNI 0x00 |
| #define RSR_IVLDTYP 0x20 |
| #define RSR_IVLDLEN 0x10 /* invalid len (> 2312 byte) */ |
| #define RSR_BSSIDOK 0x08 |
| #define RSR_CRCOK 0x04 |
| #define RSR_BCNSSIDOK 0x02 |
| #define RSR_ADDROK 0x01 |
| |
| /* Bits in the new RSR register */ |
| #define NEWRSR_DECRYPTOK 0x10 |
| #define NEWRSR_CFPIND 0x08 |
| #define NEWRSR_HWUTSF 0x04 |
| #define NEWRSR_BCNHITAID 0x02 |
| #define NEWRSR_BCNHITAID0 0x01 |
| |
| /* Bits in the TSR0 register */ |
| #define TSR0_PWRSTS1_2 0xC0 |
| #define TSR0_PWRSTS7 0x20 |
| #define TSR0_NCR 0x1F |
| |
| /* Bits in the TSR1 register */ |
| #define TSR1_TERR 0x80 |
| #define TSR1_PWRSTS4_6 0x70 |
| #define TSR1_RETRYTMO 0x08 |
| #define TSR1_TMO 0x04 |
| #define TSR1_PWRSTS3 0x02 |
| #define ACK_DATA 0x01 |
| |
| /* Bits in the TCR register */ |
| #define EDMSDU 0x04 /* end of sdu */ |
| #define TCR_EDP 0x02 /* end of packet */ |
| #define TCR_STP 0x01 /* start of packet */ |
| |
| /* max transmit or receive buffer size */ |
| #define CB_MAX_BUF_SIZE 2900U |
| /* NOTE: must be multiple of 4 */ |
| #define CB_MAX_TX_BUF_SIZE CB_MAX_BUF_SIZE |
| #define CB_MAX_RX_BUF_SIZE_NORMAL CB_MAX_BUF_SIZE |
| |
| #define CB_BEACON_BUF_SIZE 512U |
| |
| #define CB_MAX_RX_DESC 128 |
| #define CB_MIN_RX_DESC 16 |
| #define CB_MAX_TX_DESC 64 |
| #define CB_MIN_TX_DESC 16 |
| |
| #define CB_MAX_RECEIVED_PACKETS 16 |
| /* |
| * limit our receive routine to indicating |
| * this many at a time for 2 reasons: |
| * 1. driver flow control to protocol layer |
| * 2. limit the time used in ISR routine |
| */ |
| |
| #define CB_EXTRA_RD_NUM 32 |
| #define CB_RD_NUM 32 |
| #define CB_TD_NUM 32 |
| |
| /* |
| * max number of physical segments in a single NDIS packet. Above this |
| * threshold, the packet is copied into a single physically contiguous buffer |
| */ |
| #define CB_MAX_SEGMENT 4 |
| |
| #define CB_MIN_MAP_REG_NUM 4 |
| #define CB_MAX_MAP_REG_NUM CB_MAX_TX_DESC |
| |
| #define CB_PROTOCOL_RESERVED_SECTION 16 |
| |
| /* |
| * if retrys excess 15 times , tx will abort, and if tx fifo underflow, |
| * tx will fail, we should try to resend it |
| */ |
| #define CB_MAX_TX_ABORT_RETRY 3 |
| |
| /* WMAC definition FIFO Control */ |
| #define FIFOCTL_AUTO_FB_1 0x1000 |
| #define FIFOCTL_AUTO_FB_0 0x0800 |
| #define FIFOCTL_GRPACK 0x0400 |
| #define FIFOCTL_11GA 0x0300 |
| #define FIFOCTL_11GB 0x0200 |
| #define FIFOCTL_11B 0x0100 |
| #define FIFOCTL_11A 0x0000 |
| #define FIFOCTL_RTS 0x0080 |
| #define FIFOCTL_ISDMA0 0x0040 |
| #define FIFOCTL_GENINT 0x0020 |
| #define FIFOCTL_TMOEN 0x0010 |
| #define FIFOCTL_LRETRY 0x0008 |
| #define FIFOCTL_CRCDIS 0x0004 |
| #define FIFOCTL_NEEDACK 0x0002 |
| #define FIFOCTL_LHEAD 0x0001 |
| |
| /* WMAC definition Frag Control */ |
| #define FRAGCTL_AES 0x0300 |
| #define FRAGCTL_TKIP 0x0200 |
| #define FRAGCTL_LEGACY 0x0100 |
| #define FRAGCTL_NONENCRYPT 0x0000 |
| #define FRAGCTL_ENDFRAG 0x0003 |
| #define FRAGCTL_MIDFRAG 0x0002 |
| #define FRAGCTL_STAFRAG 0x0001 |
| #define FRAGCTL_NONFRAG 0x0000 |
| |
| #define TYPE_TXDMA0 0 |
| #define TYPE_AC0DMA 1 |
| #define TYPE_ATIMDMA 2 |
| #define TYPE_SYNCDMA 3 |
| #define TYPE_MAXTD 2 |
| |
| #define TYPE_BEACONDMA 4 |
| |
| #define TYPE_RXDMA0 0 |
| #define TYPE_RXDMA1 1 |
| #define TYPE_MAXRD 2 |
| |
| /* TD_INFO flags control bit */ |
| #define TD_FLAGS_NETIF_SKB 0x01 /* check if need release skb */ |
| /* check if called from private skb (hostap) */ |
| #define TD_FLAGS_PRIV_SKB 0x02 |
| #define TD_FLAGS_PS_RETRY 0x04 /* check if PS STA frame re-transmit */ |
| |
| /* |
| * ref_sk_buff is used for mapping the skb structure between pre-built |
| * driver-obj & running kernel. Since different kernel version (2.4x) may |
| * change skb structure, i.e. pre-built driver-obj may link to older skb that |
| * leads error. |
| */ |
| |
| struct vnt_rd_info { |
| struct sk_buff *skb; |
| dma_addr_t skb_dma; |
| }; |
| |
| struct vnt_rdes0 { |
| volatile __le16 res_count; |
| #ifdef __BIG_ENDIAN |
| union { |
| volatile u16 f15_reserved; |
| struct { |
| volatile u8 f8_reserved1; |
| volatile u8 owner:1; |
| volatile u8 f7_reserved:7; |
| } __packed; |
| } __packed; |
| #else |
| u16 f15_reserved:15; |
| u16 owner:1; |
| #endif |
| } __packed; |
| |
| struct vnt_rdes1 { |
| __le16 req_count; |
| u16 reserved; |
| } __packed; |
| |
| /* Rx descriptor*/ |
| struct vnt_rx_desc { |
| volatile struct vnt_rdes0 rd0; |
| volatile struct vnt_rdes1 rd1; |
| volatile __le32 buff_addr; |
| volatile __le32 next_desc; |
| struct vnt_rx_desc *next __aligned(8); |
| struct vnt_rd_info *rd_info __aligned(8); |
| } __packed; |
| |
| struct vnt_tdes0 { |
| volatile u8 tsr0; |
| volatile u8 tsr1; |
| #ifdef __BIG_ENDIAN |
| union { |
| volatile u16 f15_txtime; |
| struct { |
| volatile u8 f8_reserved; |
| volatile u8 owner:1; |
| volatile u8 f7_reserved:7; |
| } __packed; |
| } __packed; |
| #else |
| volatile u16 f15_txtime:15; |
| volatile u16 owner:1; |
| #endif |
| } __packed; |
| |
| struct vnt_tdes1 { |
| volatile __le16 req_count; |
| volatile u8 tcr; |
| volatile u8 reserved; |
| } __packed; |
| |
| struct vnt_td_info { |
| void *mic_hdr; |
| struct sk_buff *skb; |
| unsigned char *buf; |
| dma_addr_t buf_dma; |
| u16 req_count; |
| u8 flags; |
| }; |
| |
| /* transmit descriptor */ |
| struct vnt_tx_desc { |
| volatile struct vnt_tdes0 td0; |
| volatile struct vnt_tdes1 td1; |
| volatile __le32 buff_addr; |
| volatile __le32 next_desc; |
| struct vnt_tx_desc *next __aligned(8); |
| struct vnt_td_info *td_info __aligned(8); |
| } __packed; |
| |
| /* Length, Service, and Signal fields of Phy for Tx */ |
| struct vnt_phy_field { |
| u8 signal; |
| u8 service; |
| __le16 len; |
| } __packed; |
| |
| union vnt_phy_field_swap { |
| struct vnt_phy_field field_read; |
| u16 swap[2]; |
| u32 field_write; |
| }; |
| |
| #endif /* __DESC_H__ */ |