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Length: 5344 (0x14e0)
Types: TextFile
Notes: UNIX file
Names: »ub.h«
└─⟦8c4f54e61⟧ Bits:30004068/disk2.imd Interactive TCP/IP v.1.2
└─⟦8c4f54e61⟧ UNIX Filesystem
└─⟦this⟧ »hb/new/usr/include/sys/ub.h«
/*
* definitions and declarations for the U-B PC-NIC ethernet driver
*
* Copyrighted as an unpublished work.
* (c) Copyright 1988 INTERACTIVE Systems Corporation
* All rights reserved.
*
* RESTRICTED RIGHTS:
*
* These programs are supplied under a license. They may be used,
* disclosed, and/or copied only as permitted under such license
* agreement. Any copy must contain the above copyright notice and
* this restricted rights notice. Use, copying, and/or disclosure
* of the programs is strictly prohibited unless otherwise provided
* in the license agreement.
*/
#ident "@(#)ub.h 1.4 - 89/01/13"
/*
* U-B board specific parameters for space.c
*/
#define UB_PADDR_0 0x00
#define UB_PADDR_1 0x01
/*
* definitions of all U-B PC-NIC registers and internal data structures.
*/
struct ubmemmap {
#define EPROM_SIZE 0x2000
#define PHYSADDR_OFFSET 0x10
unsigned char eprom[EPROM_SIZE];
unsigned char control[0x80]; /* unused front of control */
#define CONTROL_REGISTER_BASE_OFFSET 0x2080
/* U/B control registers */
unsigned char txinit;
unsigned char clrpav;
unsigned char intstat;
unsigned char inten;
/* map read/write pairs, etc. */
#define tsamsb txinit
#define tsalsb clrpav
#define intctl intstat
#define epp inten
#define pav inten
#define fpp inten
#define RECV_PAGE_OFFSET 0x2100
#define RECV_PAGE_FILLER 0x7C
unsigned char receive_page_filler[RECV_PAGE_FILLER]; /* unused portion */
/* receive page index */
#define INDEX_SIZE 96
unsigned char index[INDEX_SIZE];
#define EOPKT 0x80
#define PAGE_MASK 0x7f
#define EDLC_BASE_OFFSET 0x2180
#define EDLC_FILLER 0x20
unsigned char edlc_filler[EDLC_FILLER];
/* EDLC registers */
unsigned char xmit_status;
unsigned char xmit_mask;
unsigned char recv_status;
unsigned char recv_mask;
unsigned char xmit_mode;
unsigned char recv_mode;
unsigned char edlc_reset;
unsigned char xmit_data_count_low;
unsigned char node_id[LLC_ADDR_LEN];
unsigned char reserved;
unsigned char xmit_data_count_high;
#define RECV_PAGE_BUFFER 0x4000
#define RECV_BUFF_FILLER 0x1E70
unsigned char receive_buff_filler[RECV_BUFF_FILLER];
#define RECV_PAGE_SIZE 128
#define RECV_PAGES 96
#define RECV_BUFF_SIZE (RECV_PAGE_SIZE*RECV_PAGES)
struct receive_page {
unsigned char data[RECV_PAGE_SIZE];
} recv_page[RECV_PAGES];
#define XMIT_BUFFER_OFFSET 0x7000
#define XMIT_BUFFER_SIZE 2048
#define XMIT_BUFFERS 2
struct transmit_buffer {
unsigned char data[XMIT_BUFFER_SIZE];
} xmit_buffer[XMIT_BUFFERS];
};
/* misc. constants for EDLC and board parameters */
#define EDLC_RESET 0x80 /* put board into reset */
#define EDLC_LOOPBACK 0x00 /* appropriate bits to go into loopback */
#define EDLC_CLEAR 0x00 /* general clear */
#define EDLC_SETCLEAR 0xff /* clear by setting all bits */
#define PAV_MASK 0x7f /* mask for clearing PAV bit */
#define PAV_SET 0x80 /* PAV bit testing */
#define INTEN_MASK 0x7f /* mask for clearin INTEN bit */
#define INTEN_ENABLE 0x80 /* INTEN bit */
#define XMIT_DONE 0x01 /* transmit is done if set */
#define XMIT_OK 0x02 /* transmit is done without error */
#define XMIT_ENABLE 0x0a /* enable board for transmit */
#define XMIT_CLEAR 0x0f /* clear xmit status bits */
#define XMIT_STAT_MASK (XMIT_DONE|XMIT_OK)
#define RECV_OFF 0x00 /* receiver off */
#define RECV_PROMISCUOUS 0x03 /* enable promiscuous mode */
#define RECV_LIMITED 0x01 /* limited multicast, broadcast, mine */
#define RECV_NORMAL 0x02 /* all multicast, broadcast, mine */
#define RECV_MODE RECV_NORMAL
#define XMIT_MODE XMIT_ENABLE /* for now */
/*swapped for now in order to test */
#define INTR_XMIT 0x80 /* interrupt on xmit complete */
#define INTR_RECV 0x40 /* interrupt on packet received */
#define INTR_SOFT 0x20 /* interrupt on software */
#define INTR_TIMER 0x10 /* interrupt on timer expire */
#define INTR_DEFAULT (INTR_RECV) /* none for now */
#define INTR_ENABLE 0x00
#define INTR_CLEAR 0
#define XMIT_MASK_PARITY 0x01
#define XMIT_MASK_EXCOLL 0x02
#define XMIT_MASK_COLL 0x04
#define XMIT_MASK_UNDERFLOW 0x08
#define XMIT_MASK_SHORTED 0x10
/*
* operational statistics
*/
#define UB_NSTATS 16
struct ubstats {
/* non-hardware */
struct llcstats ubs_llcs; /* 0-3 */
/* transmit */
ulong ubs_xpkts; /* 4 */
ulong ubs_xbytes; /* 5 */
ulong ubs_excoll; /* 6 */
ulong ubs_coll; /* 7 */
ulong ubs_under; /* 8 */
ulong ubs_carrier; /* 9 */
/* receive */
ulong ubs_rpkts; /* 10 */
ulong ubs_rbytes; /* 11 */
ulong ubs_fcs; /* 12 */
ulong ubs_align; /* 13 */
ulong ubs_overflow; /* 14 */
ulong ubs_short; /* 15 */
};
/* misc operational parameters */
#define UBHIWAT (32*1024)
#define UBLOWAT (8*1024)
#define UBMAXPKT 1500
#define UBMAXPKTLLC 1497
/* additional variables needed for board operation */
/* in a struct in order to simplify multiboard support later */
struct ubvars {
int fpp; /* local copy of fpp */
int buffer_avail;
int buffer_full; /* buffer contains valid packet */
int buffer_last; /* last buffer xmitted from */
int buffer_len[2];
int xmitter_busy;
};
#define UBDEBUG 0xffff
#define UBERRS 0x0001
#define UBTRACE 0x0002
#define UBFLOW 0x0004
#define UBSCHED 0x0008
#define UBRECV 0x0010
#define UBXMIT 0x0020