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Diffstat (limited to 'drivers/staging/vt6655/desc.h')
| -rw-r--r-- | drivers/staging/vt6655/desc.h | 249 |
1 files changed, 249 insertions, 0 deletions
diff --git a/drivers/staging/vt6655/desc.h b/drivers/staging/vt6655/desc.h new file mode 100644 index 000000000..17a40c53b --- /dev/null +++ b/drivers/staging/vt6655/desc.h @@ -0,0 +1,249 @@ +/* SPDX-License-Identifier: GPL-2.0+ */ +/* + * Copyright (c) 1996, 2003 VIA Networking Technologies, Inc. + * All rights reserved. + * + * 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__ */ |