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/*
* sbni.h - header file for sbni linux device driver
*
* Copyright (C) 1999 Granch ltd., Yaroslav Polyakov (xenon@granch.ru).
*
*/
/*
* SBNI12 definitions
*
* Revision 2.0.0 1997/08/27
* Initial revision
*
* Revision 2.1.0 1999/04/26
* dev_priv structure changed to support balancing and some other features.
*
*/
#ifndef __SBNI_H
#define __SBNI_H
#define SBNI_DEBUG 0
#if SBNI_DEBUG
#define DP( A ) A
#else
#define DP( A )
#endif
typedef unsigned char BOOLEAN;
#define TRUE 1
#define FALSE 0
#define SBNI_IO_EXTENT 0x4
#define SB_MAX_BUFFER_ARRAY 1023
#define CSR0 0
#define CSR1 1
#define DAT 2
/* CSR0 mapping */
#define BU_EMP (1 << 1) /* r z */
#define RC_CHK (1 << 2) /* rw */
#define CT_ZER (1 << 3) /* w */
#define TR_REQ (1 << 4) /* rwz* */
#define TR_RDY (1 << 5) /* r z */
#define EN_INT (1 << 6) /* rwz* */
#define RC_RDY (1 << 7) /* r z */
/* CSR1 mapping */
#define PR_RES (1 << 7) /* w */
struct sbni_csr1 {
unsigned rxl:5;
unsigned rate:2;
unsigned:1;
};
#define DEF_RXL_DELTA -1
#define DEF_RXL 0xf
#define DEF_RATE 0
#define DEF_FRAME_LEN (1023 - 14 - 9)
#ifdef MODULE
#define SBNI_MAX_NUM_CARDS 8
#define SBNI_MAX_SLAVES 8
#endif /* MODULE */
#define SBNI_SIG 0x5a
#define SB_ETHER_MIN_LEN 60
#define SB_FILLING_CHAR (unsigned char)0x00
#define TR_ERROR_COUNT 32
#define CHANGE_LEVEL_START_TICKS 4
#define SBNI_INTERNAL_QUEUE_SIZE 10 /* 100 ? */
#define PACKET_FIRST_FRAME (unsigned short)0x8000
#define RECEIVE_FRAME_RESEND (unsigned short)0x0800
#define PACKET_RESEND 0x4000
#define PACKET_SEND_OK 0x3000
#define PACKET_LEN_MASK (unsigned short)0x03ff
#define PACKET_INF_MASK (unsigned short)0x7000
#define ETHER_ADDR_LEN 6
#define SBNI_TIMEOUT HZ/10 /* ticks to wait for pong or packet */
/* sbni watchdog called SBNI_HZ times per sec. */
struct sbni_in_stats {
unsigned int all_rx_number;
unsigned int bad_rx_number;
unsigned int timeout_number;
unsigned int all_tx_number;
unsigned int resend_tx_number;
};
/*
* Board-specific info in dev->priv.
*/
struct net_local {
struct enet_statistics stats;
struct timer_list watchdog;
unsigned int realframelen; /* the current size of the SB-frame */
unsigned int eth_trans_buffer_len; /* tx buffer length */
unsigned int outpos;
unsigned int inppos;
unsigned int frame_len; /* The set SB-frame size */
unsigned int tr_err;
unsigned int timer_ticks;
BOOLEAN last_receive_OK;
BOOLEAN tr_resend;
unsigned char wait_frame_number;
unsigned char eth_trans_buffer[1520]; /* tx buffer */
unsigned char HSCounter; /* Reserved field */
unsigned char eth_rcv_buffer[2600]; /* rx buffer */
struct sbni_csr1 csr1;
/* Internal Statistics */
struct sbni_in_stats in_stats;
int rxl_curr; /* current receive level value [0..0xf] */
int rxl_delta; /* receive level delta (+1, -1)
rxl_delta == 0 - receive level
autodetection
disabled */
unsigned int ok_curr; /* current ok frames received */
unsigned int ok_prev; /* previous ok frames received */
unsigned int timeout_rxl;
struct sk_buff_head queue;
struct sk_buff *currframe;
BOOLEAN waitack;
struct net_device *m; /* master */
struct net_device *me; /* me */
struct net_local *next_lp; /* next lp */
int carrier;
};
struct sbni_hard_header {
/* internal sbni stuff */
unsigned int crc; /* 4 */
unsigned short packetlen; /* 2 */
unsigned char number; /* 1 */
unsigned char reserv; /* 1 */
/* 8 */
/* ethernet stuff */
unsigned char h_dest[ETH_ALEN]; /* destination eth addr */
unsigned char h_source[ETH_ALEN]; /* source ether addr */
unsigned short h_proto; /* packet type ID field */
/* +14 */
/* 22 */
};
#define SBNI_HH_SZ 22
struct sbni_flags {
unsigned rxl:4;
unsigned rate:2;
unsigned fixed_rxl:1;
unsigned fixed_rate:1;
};
#define RCV_NO 0
#define RCV_OK 1
#define RCV_WR 2
#define SIOCDEVGETINSTATS SIOCDEVPRIVATE
#define SIOCDEVRESINSTATS SIOCDEVPRIVATE+1
#define SIOCDEVGHWSTATE SIOCDEVPRIVATE+2
#define SIOCDEVSHWSTATE SIOCDEVPRIVATE+3
#define SIOCDEVENSLAVE SIOCDEVPRIVATE+4
#define SIOCDEVEMANSIPATE SIOCDEVPRIVATE+5
#endif /* __SBNI_H */
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