diff options
Diffstat (limited to 'drivers/net/wan/sbni.h')
| -rw-r--r-- | drivers/net/wan/sbni.h | 194 |
1 files changed, 194 insertions, 0 deletions
diff --git a/drivers/net/wan/sbni.h b/drivers/net/wan/sbni.h new file mode 100644 index 000000000..2e34d8d34 --- /dev/null +++ b/drivers/net/wan/sbni.h @@ -0,0 +1,194 @@ +/* + * 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 */ |