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- version equ 0
-
- include defs.asm
-
- ;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.
-
- ; 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.
-
- .286 ;the 3c507 requires a 286.
-
- code segment word public
- assume cs:code, ds:code
-
- ;
- ; Equates for controlling the 3c507 board
- ;
- IO_CONTROL equ 06h
- IO_INTCLR equ 0ah
- IO_CA equ 0bh
- IO_RAM equ 0eh
- IO_INT equ 0fh
-
- ;IO_CONTROL bits:
- _RST equ 80h ;not reset
- LBK equ 20h ;loopback
- IEN equ 04h ;interrupt enable
- VB0 equ 01h ;vb0.
-
- public int_no
- int_no db 3,0,0,0 ; interrupt number
- io_addr dw 300h,0 ; I/O address for card
- base_addr dw 0c000h,0 ; base segment for board
-
- public driver_class, driver_type, driver_name, driver_function, parameter_list
- driver_class db BLUEBOOK, IEEE8023, 0 ;from the packet spec
- driver_type db 13 ;from the packet spec
- driver_name db "3c507",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 IO_CONTROL
- mov al,_RST or IEN or VB0
- out dx,al
- ret
-
-
- reset_586:
- ; Reset the chip
- loadport
- setport IO_CONTROL
- mov al,LBK
- out dx,al
- jmp $+2
- jmp $+2
- mov al,_RST or LBK or VB0
- out dx,al
- setport IO_INTCLR ;clear the interupt latch.
- out dx,al
- ret
-
-
- public get_address
- get_address:
- ;get the address of the interface.
- ;enter with es:di -> place to get the address, cx = size of address buffer.
- ;exit with nc, cx = actual size of address, or cy if buffer not big enough.
- assume ds:code
- cmp cx,EADDR_LEN ;make sure that we have enough room.
- jb get_address_2
- mov cx,EADDR_LEN
- mov dx,io_addr ; Get our IO base address.
- cld
- get_address_1:
- in al,dx ; get a byte of the eprom address
- stosb ; put it away
- inc dx ; next register
- loop get_address_1 ; go back for rest
- mov cx,EADDR_LEN
- clc
- ret
- get_address_2:
- stc
- ret
-
-
- doca:
- ;we may be called from places in which ds is unknown.
- assume ds:nothing
- loadport
- setport IO_CA
- out dx, al
- ret
- assume ds:code
- ;yet, we really should assume ds==code for the rest of this stuff.
-
-
- ;
- ; Here we include the code that is common between 82586 implementations.
- ; Everything above this is resident.
- include 82586.asm
- ; Everything below this is discarded upon installation.
-
- public usage_msg
- usage_msg db "usage: 3c507 [-n] [-d] [-w] <packet_int_no> <int_no> <io_addr> <base_addr>",CR,LF,'$'
-
- public copyright_msg
- copyright_msg db "Packet driver for the 3C507, version ",'0'+(majver / 10),'0'+(majver mod 10),".",'0'+version,".",'0'+i82586_version,CR,LF,'$'
-
- big_window_only label byte
- db "Only 64K window implemented.",CR,LF,'$'
- main_memory_only label byte
- db "Memory window must be in the 0xc000 -> 0xd800 range.",CR,LF,'$'
-
- check_board:
- mov SCP,0 ; 16 bit bus type in scb.
-
- call write_id_pat
-
- loadport
- setport IO_RAM
- in al,dx
- and al,3 ;get the window size.
- ;00 = 16K, 01 = 32K, 10 = 48K, 11 = 64K.
- cmp al,3
- je check_board_2
- mov dx,offset big_window_only
- stc
- ret
- check_board_2:
- in al,dx
- test al,20h ;8088 address or 80286 address?
- je check_board_3
- mov dx,offset main_memory_only
- stc
- ret
- check_board_3:
- and al,18h
- ;00 = 0c000h, 08 = 0c800h, 10 = 0d000h, 18 = 0d800h.
- mov ah,al
- xor al,al
- add ah,0c0h
- mov base_addr,ax
-
- setport IO_INT
- in al,dx
- and al,0fh
- mov int_no,al
-
- setport IO_CONTROL
- mov al,_RST or IEN or VB0
- out dx,al
-
- ret
-
-
- write_id_pat:
- mov dx,100h
- xor al,al
- out dx,al ;reset hardware pattern generator
- mov cx,0ffh
- mov al,0ffh
- write_id_pat_1:
- out dx,al ;keep writing matching values...
- shl al,1
- jnc write_id_pat_2
- xor al,0e7h
- write_id_pat_2:
- loop write_id_pat_1
- xor al,al
- out dx,al ;now put adapter in RUN state.
- ret
-
-
- public parse_args
- parse_args:
- mov di,offset int_no
- call get_number
- mov di,offset io_addr
- call get_number
- mov di,offset base_addr
- call get_number
- clc
- ret
-
-
- int_no_name db "Interrupt number ",'$'
- io_addr_name db "I/O port ",'$'
- base_addr_name db "Memory address ",'$'
-
-
- public print_parameters
- print_parameters:
- mov di,offset int_no
- mov dx,offset int_no_name
- call print_number
- mov di,offset io_addr
- mov dx,offset io_addr_name
- call print_number
- mov ax,memory_begin
- mov cl,4
- shr ax,cl
- add base_addr,ax
- push ax
- mov di,offset base_addr
- mov dx,offset base_addr_name
- call print_number
- pop ax
- sub base_addr,ax
- ret
-
- include memtest.asm
-
- code ends
-
- end
-
-