;Ported from Tim Krauskopf's micnet.asm, an assembly language
;driver for the MICOM-Interlan NI5210, by Russell Nelson. Any bugs
;are due to Russell Nelson.
;Updated to version 1.08 Feb. 17, 1989 by Russell Nelson.
;Updated to support 1500 byte MTU April 27, 1989 By Brad Clements.
;Mangled to become a NI9210 driver, September 1989 by Russell Nelson
; Copyright, 1988-1992, Russell Nelson, Crynwr Software
; This program is free software; you can redistribute it and/or modify
; it under the terms of the GNU General Public License as published by
; the Free Software Foundation, version 1.
;
; This program is distributed in the hope that it will be useful,
; but WITHOUT ANY WARRANTY; without even the implied warranty of
; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
; GNU General Public License for more details.
;
; You should have received a copy of the GNU General Public License
; along with this program; if not, write to the Free Software
; Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
code segment word public
assume cs:code, ds:code
;
; Equates for controlling the MICOM board
;
; I/O addresses, writing anything in AL trips these gates
;
; First six addresses are the EPROM board Ether address (read)
;
IORESET EQU 0 ; reset the board
IOCA EQU 2 ; execute command which is in SCB
IODIS EQU 4 ; disable network connect
IOENA EQU 6 ; enable network
;
; Data segment
;
public int_no
int_no db 2,0,0,0 ; interrupt number.
io_addr dw 0360h,0 ; I/O address for card (pos)
base_addr dw 0d000h,0 ; base segment for board (pos)
public driver_class, driver_type, driver_name, driver_function, parameter_list
driver_class db BLUEBOOK, IEEE8023, 0 ;from the packet spec
driver_type db 11 ;from the packet spec
driver_name db "NI9210",0 ;name of the driver.
driver_function db 2
parameter_list label byte
db 1 ;major rev of packet driver
db 9 ;minor rev of packet driver
db 14 ;length of parameter list
db EADDR_LEN ;length of MAC-layer address
dw GIANT ;MTU, including MAC headers
dw MAX_MULTICAST * EADDR_LEN ;buffer size of multicast addrs
dw 0 ;(# of back-to-back MTU rcvs) - 1
dw 0 ;(# of successive xmits) - 1
int_num dw 0 ;Interrupt # to hook for post-EOI
;processing, 0 == none,
enable_network:
; connect to network
loadport
setport IOENA ; enable network
out dx,al ; any al value
ret
reset_586:
; Reset the chip
loadport
setport IORESET
out dx,al
ret
doca:
;we may be called from places in which ds is unknown.
assume ds:nothing
loadport
setport IOCA
out dx,al ; send it
ret
assume ds:code
;yet, we really should assume ds==code for the rest of this stuff.
;
; Here we include the code that is common between 82586 implementations.
; Everything above this is resident.
include 82586.asm
; Everything below this is discarded upon installation.
public usage_msg
usage_msg db "usage: ni9210 [options] <packet_int_no> <hardware_irq> <io_addr> <base_addr>",CR,LF,'$'
public copyright_msg
copyright_msg db "Packet driver for the MICOM-Interlan NI9210, version ",'0'+(majver / 10),'0'+(majver mod 10),".",'0'+version,".",'0'+i82586_version,CR,LF
db "Portions Copyright 1988 The Board of Trustees of the University of Illinois",CR,LF,'$'
IRQ_MASK equ 06h
IRQ_TABLE db 9 ; Interrupt Value 0
db 10 ; Interrupt Value 1
db 11 ; Interrupt Value 2
db 3 ; Interrupt Value 3
check_board:
mov SCP,0 ; 16 bit bus type in scb.
ret
no_9210_msg db "No 9210 found.",CR,LF,'$'
no_9210_io_msg db "No 9210 found at that I/O address.",CR,LF,'$'
no_9210_mem_msg db "No 9210 found at that memory address.",CR,LF,'$'
get_address:
;get the address of the interface.
;enter with es:di -> place to get the address, cx = size of address buffer.
;exit with nc, cx = actual size of address, or cy if buffer not big enough.
assume ds:code
mov cx,EADDR_LEN
mov dx,io_addr ; Get our IO base address.
cld
get_address_1:
in al,dx ; get a byte of the eprom address
stosb ; put it away
add dx,2 ; next register
loop get_address_1 ; go back for rest
ret
public parse_args
parse_args:
;The following code to read the POS registers is courtesy of Racal-Interlan.
; channel selector resides at io 96h
; POS register base is at io 100h
; 9210 ID is 0DF0Fh
; search thro' the slots for a 9210 card
mov cx, 8 ; for all channels(slots)
; channel select value for slots 0,1,2.. is 8,9,A etc
; start with slot 0, and then 7,6,5,4,3,2,1
get_05:
mov ax, cx ; channel number
or ax, 08h ; reg. select value
mov dx, 96h ; channel select register
out dx, al ; select channel
; read adapter id
mov dx, 100h
in al, dx ; adapter id - ms byte
mov ah, al
inc dx
in al, dx ; adapter id - ls byte
; Check if 9210
cmp ax, 0DF0Fh
je get_10
loop get_05
mov dx,offset no_9210_msg
stc
ret
get_10:
; found our Adapter
; Get Ni9210 I/O Address ( read POS Register 1 )
xor ax,ax
mov dx,103h
in al,dx
xor ah,ah
mov cl,5
shl ax,cl
mov io_addr,ax
; Get Ni9210 IRQ ( read POS Register 0 )
mov dx,102h
in al,dx
mov bl,al
and bx,IRQ_MASK
shr bx,1
mov al,IRQ_TABLE[bx]
mov int_no,al
; Get Memory Address ( read POS Registers 2 and 3 )
mov dx,105h
in al,dx
mov ah,al
dec dx
in al,dx
and ax,3fe0h
mov cl,5
shl ax,cl
mov base_addr,ax
mov dx, 102h
in al,dx
or al,1 ;enable the card.
out dx,al
mov dx, 96h ;deselect the card.
xor al,al
out dx,al
mov dx,io_addr ; i/o address
add dx,EADDR_LEN*2 ; look past the ethernet address.
