WebSVN – Kolibri OS – Diff – /kernel/branches/flat_kernel/network/eth_drv/ethernet.inc


$Revision: 431 $
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
;;                                                                 ;;
;; Copyright (C) KolibriOS team 2004-2007. All rights reserved.    ;;
;; Distributed under terms of the GNU General Public License       ;;
;;                                                                 ;;
;;  ETHERNET.INC                                                   ;;
;;                                                                 ;;
;;  Ethernet network layer for Menuet OS                           ;;
;;                                                                 ;;
;;  Version 0.4  22 September 2003                                 ;;
;;                                                                 ;;
;;  This file contains the following:                              ;;
;;      PCI bus scanning for valid devices                         ;;
;;      Table of supported ethernet drivers                        ;;
;;      Code to identify and activate a supported driver           ;;
;;      ARP handler                                                ;;
;;      Driver interface to the IP layer                           ;;
;;      Gateway support                                            ;;
;;                                                                 ;;
;;  Individual driver files are included here                      ;;
;;                                                                 ;;
;;  The PCI bus scanning code was ported from the etherboot        ;;
;;  5.0.6 project. The copyright statement for that code is        ;;
;;                                                                 ;;
;;          GNU GENERAL PUBLIC LICENSE                             ;;
;;             Version 2, June 1991                                ;;
;;                                                                 ;;
;;  remaining parts Copyright 2002 Mike Hibbett                    ;;
;;   mikeh@oceanfree.net                                           ;;
;;                                                                 ;;
;;  See file COPYING for details                                   ;;
;;                                                                 ;;
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 
;********************************************************************
;   Interface
;      ethernet_driver   called by stack_handler in stack.inc
;      eth_probe         called by app_stack_handler in stack.inc
;
;********************************************************************
 
ETHER_IP		    equ     0x0008	; Reversed from 0800 for intel
ETHER_ARP		    equ     0x0608	; Reversed from 0806 for intel
ETHER_RARP		    equ     0x3580
 
struc ETH_FRAME
{  .DstMAC	 dp   ?  ;destination MAC-address [6 bytes]
   .SrcMAC	 dp   ?  ;source MAC-address [6 bytes]
   .Type	 dw   ?  ;type of the upper-layer protocol [2 bytes]
   .Data	 db   ?  ;data [46-1500 bytes]
}
 
virtual at Ether_buffer
  ETH_FRAME ETH_FRAME
end virtual
 
 
; Some useful information on data structures
 
;     Ethernet Packet - ARP Request example
;
;   0                   1                   2                   3
;   0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
;
;   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
;   |       Dest   H/W Address                                      |
;   |                    ( 14 byte header )                         |
;   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
;   |                               |     Source     H/W Address    |
;   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
;   |                                                               |
;   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
;   |    Protocol - ARP 08  06      |
;   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
 
;   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
;   |  H/W Type  00           01    |  Protocol Type   08 00        |
;   |                   ( ARP Request packet )                      |
;   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
;   | HLen    0x06  | PLen    0x04  |    OpCode        00   01      |
;   |               ( 0001 for request, 0002 for reply )            |
;   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
;   | Source Hardware Address ( MAC Address )                       |
;   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
;   |                               |  Source IP Address            |
;   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
;   |                               | Destination Hardware Address  |
;   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
;   |                                                               |
;   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
;   | Destination IP Address                                        |
;   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
 
; Include individual drivers source files at this point.
; If you create a new driver, include it below.
 
include "drivers/rtl8029.inc"
include "drivers/i8255x.inc"
include "drivers/rtl8139.inc"
include "drivers/3c59x.inc"
include "drivers/sis900.inc"
include "drivers/pcnet32.inc"
;include "drivers/mtd80x.inc"
include "drivers/rtl8169.inc"
 
; PCICards
; ========
; PCI vendor and hardware types for hardware supported by the above drivers
; If you add a driver, ensure you update this datastructure, otherwise the
; card will not be probed.
; Each driver is defined by 4 double words. These are
;   PCIVendorDevice  probeFunction ResetFunction PollFunction transmitFunction
; The last entry must be kept at all zeros, to indicate the end of the list
; As a PCI driver may support more than one hardware implementation, there may
; be several lines which refer to the same functions.
; The first driver found on the PCI bus will be the one used.
 
PCICARDS_ENTRY_SIZE	    equ     24	  ; Size of each PCICARDS entry
 
iglobal
PCICards:
dd  0x12098086, I8255x_probe, I8255x_reset, I8255x_poll, I8255x_transmit, 0
dd  0x10298086, I8255x_probe, I8255x_reset, I8255x_poll, I8255x_transmit, 0
dd  0x12298086, I8255x_probe, I8255x_reset, I8255x_poll, I8255x_transmit, 0
dd  0x10308086, I8255x_probe, I8255x_reset, I8255x_poll, I8255x_transmit, 0
dd  0x24498086, I8255x_probe, I8255x_reset, I8255x_poll, I8255x_transmit, 0
dd  0x802910ec, rtl8029_probe, rtl8029_reset, rtl8029_poll, rtl8029_transmit, 0
dd  0x12111113, rtl8029_probe, rtl8029_reset, rtl8029_poll, rtl8029_transmit, 0
 
dd  0x813910ec, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable
dd  0x813810ec, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable
dd  0x12111113, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable
dd  0x13601500, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable
dd  0x13604033, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable
dd  0x13001186, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable
dd  0x13401186, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable
dd  0xab0613d1, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable
dd  0xa1171259, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable
dd  0xa11e1259, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable
dd  0xab0614ea, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable
dd  0xab0714ea, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable
dd  0x123411db, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable
dd  0x91301432, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable
dd  0x101202ac, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable
dd  0x0106018a, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable
dd  0x1211126c, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable
dd  0x81391743, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable
dd  0x8139021b, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable
 
dd  0x816810ec, rtl8169_probe, rtl8169_reset, rtl8169_poll, rtl8169_transmit, 0
dd  0x816910ec, rtl8169_probe, rtl8169_reset, rtl8169_poll, rtl8169_transmit, 0
dd  0x011616ec, rtl8169_probe, rtl8169_reset, rtl8169_poll, rtl8169_transmit, 0
dd  0x43001186, rtl8169_probe, rtl8169_reset, rtl8169_poll, rtl8169_transmit, 0
 
dd  0x590010b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
dd  0x592010b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
dd  0x597010b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
dd  0x595010b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
dd  0x595110b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
dd  0x595210b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
dd  0x900010b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
dd  0x900110b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
dd  0x900410b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
dd  0x900510b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
dd  0x900610b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
dd  0x900A10b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
dd  0x905010b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
dd  0x905110b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
dd  0x905510b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
dd  0x905810b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
dd  0x905A10b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
dd  0x920010b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
dd  0x980010b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
dd  0x980510b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
dd  0x764610b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
dd  0x505510b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
dd  0x605510b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
dd  0x605610b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
dd  0x5b5710b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
dd  0x505710b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
dd  0x515710b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
dd  0x525710b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
dd  0x656010b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
dd  0x656210b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
dd  0x656410b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
dd  0x450010b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
 
dd  0x09001039, SIS900_probe, SIS900_reset, SIS900_poll, SIS900_transmit, 0
 
dd  0x20001022, pcnet32_probe, pcnet32_reset, pcnet32_poll, pcnet32_xmit, 0
dd  0x26251022, pcnet32_probe, pcnet32_reset, pcnet32_poll, pcnet32_xmit, 0
dd  0x20011022, pcnet32_probe, pcnet32_reset, pcnet32_poll, pcnet32_xmit, 0
 
;dd  0x08031516, mtd80x_probe, mtd80x_reset, mtd80x_poll, mtd80x_transmit, mtd80x_cable
 
; following cards are untested
dd  0x70161039, SIS900_probe, SIS900_reset, SIS900_poll, SIS900_transmit, 0
;dd  0x08001516, mtd80x_probe, mtd80x_reset, mtd80x_poll, mtd80x_transmit, mtd80x_cable
;dd  0x08911516, mtd80x_probe, mtd80x_reset, mtd80x_poll, mtd80x_transmit, mtd80x_cable
 
rb PCICARDS_ENTRY_SIZE	; end of list marker, do not remove
endg
 
uglobal
;Net-stack's interface's settings
  node_addr:	      db  0,0,0,0,0,0
  gateway_ip:	      dd  0
  dns_ip:	      dd  0
 
  eth_rx_data_len:    dw  0
  eth_status:	      dd  0
  io_addr:	      dd  0
  hdrtype:	      db  0
  vendor_device:      dd  0
  pci_data:	      dd  0
  pci_dev:	      dd  0
  pci_bus:	      dd  0
 
  ; These will hold pointers to the selected driver functions
  drvr_probe:	      dd  0
  drvr_reset:	      dd  0
  drvr_poll:	      dd  0
  drvr_transmit:      dd  0
  drvr_cable:	      dd  0
 
endg
 
iglobal
  broadcast_add:      db  0xff,0xff,0xff,0xff,0xff,0xff
  subnet_mask:	      dd  0x00ffffff   ; 255.255.255.0
endg
 
include "arp.inc"    ;arp-protocol functions
include "pci.inc"    ;PCI bus access functions
 
 
;***************************************************************************
;   Function
;      eth_tx
;
;   Description
;      Looks at the NET1OUT_QUEUE for data to send.
;      Stores that destination IP in a location used by the tx routine
;      Looks up the MAC address in the ARP table; stores that where
;      the tx routine can get it
;      Get the length of the data. Store that where the tx routine wants it
;      Call tx
;      Places buffer on empty queue when the tx routine finished
;
;***************************************************************************
proc eth_tx stdcall uses ebx esi edi
local MACAddress  dp  ?  ;allocate 6 bytes in the stack
 
    ; Look for a buffer to tx
    mov     eax, NET1OUT_QUEUE
    call    dequeue
    cmp     ax, NO_BUFFER
    je	    .exit	     ; Exit if no buffer available
 
    push    eax  ;save buffer number
 
    ; convert buffer pointer eax to the absolute address
    imul    eax, IPBUFFSIZE
    add     eax, IPbuffs
 
    ; Extract the destination IP
    ; find the destination IP in the ARP table, get MAC
    ; store this MAC in 'MACAddress'
    mov     ebx, eax		   ; Save buffer address
    mov     edx, [ebx + 16]	   ; get destination address
 
    ; If the destination address is 255.255.255.255,
    ; set the MACAddress to all ones ( broadcast )
    cld
    mov     esi, broadcast_add
    lea     edi, [MACAddress]
    movsd
    movsw
    cmp     edx, 0xffffffff
    je	    .send		 ; If it is broadcast, just send
 
    lea     eax, [MACAddress]	 ;cause this is local variable
    stdcall arp_table_manager, ARP_TABLE_IP_TO_MAC, edx, eax ;opcode,IP,MAC_ptr - Get the MAC address.
 
    cmp     eax, ARP_VALID_MAPPING
    je	    .send
 
    ; No valid entry. Has the request been sent, but timed out?
    cmp     eax, ARP_RESPONSE_TIMEOUT
    je	    .freebuf
 
  .wait_response:		    ;we wait arp-response
				    ; Re-queue the packet, and exit
    pop     ebx
    mov     eax, NET1OUT_QUEUE
    call    queue			 ; Get the buffer back
    jmp     .exit
 
  .send:    ;if ARP_VALID_MAPPING then send the packet
    lea     edi, [MACAddress]	  ; Pointer to 48 bit destination address
    movzx   ecx, word[ebx+2]	  ; Size of IP packet to send
    xchg    ch, cl		  ; because mirror byte-order
    mov     esi, ebx		  ; Pointer to packet data
    mov     bx, ETHER_IP	  ; Type of packet
    call    dword [drvr_transmit] ; Call the drivers transmit function
 
    ; OK, we have sent a packet, so increment the count
    inc     dword [ip_tx_count]
 
    ; And finally, return the buffer to the free queue
  .freebuf:
    pop     eax
    call    freeBuff
 
  .exit:
    ret
endp
 
;***************************************************************************
;   Function
;      ether_IP_handler
;
;   Description
;      Called when an IP ethernet packet is received on the ethernet
;      Header + Data is in Ether_buffer[]
;      We just need to get a buffer from the 'free' queue, and
;      store the packet in it, then insert the packet number into the
;      IPRX queue.
;      If no queue entry is available, the packet is silently discarded
;      All registers may be destroyed
;
;***************************************************************************
ether_IP_handler:
    mov     eax, EMPTY_QUEUE
    call    dequeue
    cmp     ax, NO_BUFFER
    je	    eiph00x
 
    ; convert buffer pointer eax to the absolute address
    push    eax
    mov     ecx, IPBUFFSIZE
    mul     ecx
    add     eax, IPbuffs
 
    mov     edi, eax
 
    ; get a pointer to the start of the DATA
    mov     esi, ETH_FRAME.Data
 
    ; Now store it all away
    mov     ecx, IPBUFFSIZE / 4     ; Copy all of the available
			      ; data across - worse case
    cld
    rep     movsd
 
    ; And finally, place the buffer in the IPRX queue
    pop     ebx
    mov     eax, IPIN_QUEUE
    call    queue
 
eiph00x:
    ret
 
;***************************************************************************
;   Function
;      eth_probe
;   Description
;      Searches for an ethernet card. If found, the card is enabled and
;      the ethernet -> IP link established
;
;      This function scans the PCI bus looking for a supported device.
;      ISA bus is currently not supported.
;
;        eax is 0 if no hardware found
;***************************************************************************
eth_probe:
    ; Find a card on the PCI bus, and get it's address
    call    scan_bus			; Find the ethernet cards PIC address
    xor     eax, eax
    cmp     [io_addr], eax
    je	    ep_00x			; Return 0 in eax if no cards found
 
    call    dword [drvr_probe]		; Call the drivers probe function
 
    mov     eax, [io_addr]		; return a non zero value
 
ep_00x:
    ret
 
;***************************************************************************
;   Function
;      ethernet_driver
;
;   Description
;       The ethernet RX and TX handler
;       This is a kernel function, called by stack_handler
;
;***************************************************************************
ethernet_driver:
    ; Do nothing if the driver is inactive
    cmp     [ethernet_active], byte 0
    je	    eth_exit
 
    call    eth_rx
    call    eth_tx
 
eth_exit:
    ret
 
;***************************************************************************
;   Function
;      eth_rx
;
;   Description
;      Polls the ethernet card for received data. Extracts if present
;       Depending on the Protocol within the packet:
;         ARP : Pass to ARP_handler. This may result in an ARP reply
;               being tx'ed
;         IP  : Store in an IP buffer
;
;***************************************************************************
eth_rx:
    xor     ax, ax
    mov     [eth_rx_data_len], ax
    call    dword [drvr_poll]	    ; Call the drivers poll function
 
    mov     ax, [eth_rx_data_len]
    cmp     ax, 0
    je	    .exit
 
 
    ; Check the protocol. Call appropriate handler
 
    mov     ax, [ETH_FRAME.Type]    ; The address of the protocol word
 
    cmp     ax, ETHER_IP
    je	    .is_ip		     ; It's IP
 
    cmp     ax, ETHER_ARP
    je	    .is_arp		     ; It is ARP
 
    jmp     .exit		; If not IP or ARP, ignore
 
  .is_ip:
    DEBUGF  1,"K : eth_rx - IP packet\n"
    inc     dword [ip_rx_count]
    call    ether_IP_handler
    jmp     .exit
 
  .is_arp:
    DEBUGF  1,"K : eth_rx - ARP packet\n"
    ; At this point, the packet is still in the Ether_buffer
    call    arp_handler
 
  .exit:
    ret

Rev 387	Rev 444
-		1	$Revision: 431 $
1	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;	2	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
2	;; ;;	3	;; ;;
-		4	;; Copyright (C) KolibriOS team 2004-2007. All rights reserved. ;;
-		5	;; Distributed under terms of the GNU General Public License ;;
-		6	;; ;;
3	;; ETHERNET.INC ;;	7	;; ETHERNET.INC ;;
4	;; ;;	8	;; ;;
5	;; Ethernet network layer for Menuet OS ;;	9	;; Ethernet network layer for Menuet OS ;;
6	;; ;;	10	;; ;;
7	;; Version 0.4 22 September 2003 ;;	11	;; Version 0.4 22 September 2003 ;;
8	;; ;;	12	;; ;;
9	;; This file contains the following: ;;	13	;; This file contains the following: ;;
10	;; PCI bus scanning for valid devices ;;	14	;; PCI bus scanning for valid devices ;;
11	;; Table of supported ethernet drivers ;;	15	;; Table of supported ethernet drivers ;;
12	;; Code to identify and activate a supported driver ;;	16	;; Code to identify and activate a supported driver ;;
13	;; ARP handler ;;	17	;; ARP handler ;;
14	;; Driver interface to the IP layer ;;	18	;; Driver interface to the IP layer ;;
15	;; Gateway support ;;	19	;; Gateway support ;;
16	;; ;;	20	;; ;;
17	;; Individual driver files are included here ;;	21	;; Individual driver files are included here ;;
18	;; ;;	22	;; ;;
19	;; The PCI bus scanning code was ported from the etherboot ;;	23	;; The PCI bus scanning code was ported from the etherboot ;;
20	;; 5.0.6 project. The copyright statement for that code is ;;	24	;; 5.0.6 project. The copyright statement for that code is ;;
21	;; ;;	25	;; ;;
22	;; GNU GENERAL PUBLIC LICENSE ;;	26	;; GNU GENERAL PUBLIC LICENSE ;;
23	;; Version 2, June 1991 ;;	27	;; Version 2, June 1991 ;;
24	;; ;;	28	;; ;;
25	;; remaining parts Copyright 2002 Mike Hibbett ;;	29	;; remaining parts Copyright 2002 Mike Hibbett ;;
26	;; mikeh@oceanfree.net ;;	30	;; mikeh@oceanfree.net ;;
27	;; ;;	31	;; ;;
28	;; See file COPYING for details ;;	32	;; See file COPYING for details ;;
29	;; ;;	33	;; ;;
30	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;	34	;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
31		35
32	;********************************************************************	36	;********************************************************************
33	; Interface	37	; Interface
34	; ethernet_driver called by stack_handler in stack.inc	38	; ethernet_driver called by stack_handler in stack.inc
35	; eth_probe called by app_stack_handler in stack.inc	39	; eth_probe called by app_stack_handler in stack.inc
36	;	40	;
37	;********************************************************************	41	;********************************************************************
38		42
39	ETHER_IP equ 0x0008 ; Reversed from 0800 for intel	43	ETHER_IP equ 0x0008 ; Reversed from 0800 for intel
40	ETHER_ARP equ 0x0608 ; Reversed from 0806 for intel	44	ETHER_ARP equ 0x0608 ; Reversed from 0806 for intel
41	ETHER_RARP equ 0x3580	45	ETHER_RARP equ 0x3580
42		46
43	struc ETH_FRAME	47	struc ETH_FRAME
44	{ .DstMAC dp ? ;destination MAC-address [6 bytes]	48	{ .DstMAC dp ? ;destination MAC-address [6 bytes]
45	.SrcMAC dp ? ;source MAC-address [6 bytes]	49	.SrcMAC dp ? ;source MAC-address [6 bytes]
46	.Type dw ? ;type of the upper-layer protocol [2 bytes]	50	.Type dw ? ;type of the upper-layer protocol [2 bytes]
47	.Data db ? ;data [46-1500 bytes]	51	.Data db ? ;data [46-1500 bytes]
48	}	52	}
49		53
50	virtual at Ether_buffer	54	virtual at Ether_buffer
51	ETH_FRAME ETH_FRAME	55	ETH_FRAME ETH_FRAME
52	end virtual	56	end virtual
53		57
54		58
55	; Some useful information on data structures	59	; Some useful information on data structures
56		60
57	; Ethernet Packet - ARP Request example	61	; Ethernet Packet - ARP Request example
58	;	62	;
59	; 0 1 2 3	63	; 0 1 2 3
60	; 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1	64	; 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1 2 3 4 5 6 7 8 9 0 1
61	;	65	;
62	; +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+	66	; +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
63	; \| Dest H/W Address \|	67	; \| Dest H/W Address \|
64	; \| ( 14 byte header ) \|	68	; \| ( 14 byte header ) \|
65	; +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+	69	; +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
66	; \| \| Source H/W Address \|	70	; \| \| Source H/W Address \|
67	; +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+	71	; +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
68	; \| \|	72	; \| \|
69	; +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+	73	; +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
70	; \| Protocol - ARP 08 06 \|	74	; \| Protocol - ARP 08 06 \|
71	; +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+	75	; +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
72		76
73	; +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+	77	; +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
74	; \| H/W Type 00 01 \| Protocol Type 08 00 \|	78	; \| H/W Type 00 01 \| Protocol Type 08 00 \|
75	; \| ( ARP Request packet ) \|	79	; \| ( ARP Request packet ) \|
76	; +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+	80	; +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
77	; \| HLen 0x06 \| PLen 0x04 \| OpCode 00 01 \|	81	; \| HLen 0x06 \| PLen 0x04 \| OpCode 00 01 \|
78	; \| ( 0001 for request, 0002 for reply ) \|	82	; \| ( 0001 for request, 0002 for reply ) \|
79	; +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+	83	; +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
80	; \| Source Hardware Address ( MAC Address ) \|	84	; \| Source Hardware Address ( MAC Address ) \|
81	; +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+	85	; +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
82	; \| \| Source IP Address \|	86	; \| \| Source IP Address \|
83	; +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+	87	; +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
84	; \| \| Destination Hardware Address \|	88	; \| \| Destination Hardware Address \|
85	; +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+	89	; +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
86	; \| \|	90	; \| \|
87	; +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+	91	; +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
88	; \| Destination IP Address \|	92	; \| Destination IP Address \|
89	; +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+	93	; +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
90		94
91	; Include individual drivers source files at this point.	95	; Include individual drivers source files at this point.
92	; If you create a new driver, include it below.	96	; If you create a new driver, include it below.
93		97
94	include "drivers/rtl8029.inc"	98	include "drivers/rtl8029.inc"
95	include "drivers/i8255x.inc"	99	include "drivers/i8255x.inc"
96	include "drivers/rtl8139.inc"	100	include "drivers/rtl8139.inc"
97	include "drivers/3c59x.inc"	101	include "drivers/3c59x.inc"
98	include "drivers/sis900.inc"	102	include "drivers/sis900.inc"
99	include "drivers/pcnet32.inc"	103	include "drivers/pcnet32.inc"
100	;include "drivers/mtd80x.inc"	104	;include "drivers/mtd80x.inc"
101	include "drivers/rtl8169.inc"	105	include "drivers/rtl8169.inc"
102		106
103	; PCICards	107	; PCICards
104	; ========	108	; ========
105	; PCI vendor and hardware types for hardware supported by the above drivers	109	; PCI vendor and hardware types for hardware supported by the above drivers
106	; If you add a driver, ensure you update this datastructure, otherwise the	110	; If you add a driver, ensure you update this datastructure, otherwise the
107	; card will not be probed.	111	; card will not be probed.
108	; Each driver is defined by 4 double words. These are	112	; Each driver is defined by 4 double words. These are
109	; PCIVendorDevice probeFunction ResetFunction PollFunction transmitFunction	113	; PCIVendorDevice probeFunction ResetFunction PollFunction transmitFunction
110	; The last entry must be kept at all zeros, to indicate the end of the list	114	; The last entry must be kept at all zeros, to indicate the end of the list
111	; As a PCI driver may support more than one hardware implementation, there may	115	; As a PCI driver may support more than one hardware implementation, there may
112	; be several lines which refer to the same functions.	116	; be several lines which refer to the same functions.
113	; The first driver found on the PCI bus will be the one used.	117	; The first driver found on the PCI bus will be the one used.
114		118
115	PCICARDS_ENTRY_SIZE equ 24 ; Size of each PCICARDS entry	119	PCICARDS_ENTRY_SIZE equ 24 ; Size of each PCICARDS entry
116		120
117	iglobal	121	iglobal
118	PCICards:	122	PCICards:
119	dd 0x12098086, I8255x_probe, I8255x_reset, I8255x_poll, I8255x_transmit, 0	123	dd 0x12098086, I8255x_probe, I8255x_reset, I8255x_poll, I8255x_transmit, 0
120	dd 0x10298086, I8255x_probe, I8255x_reset, I8255x_poll, I8255x_transmit, 0	124	dd 0x10298086, I8255x_probe, I8255x_reset, I8255x_poll, I8255x_transmit, 0
121	dd 0x12298086, I8255x_probe, I8255x_reset, I8255x_poll, I8255x_transmit, 0	125	dd 0x12298086, I8255x_probe, I8255x_reset, I8255x_poll, I8255x_transmit, 0
122	dd 0x10308086, I8255x_probe, I8255x_reset, I8255x_poll, I8255x_transmit, 0	126	dd 0x10308086, I8255x_probe, I8255x_reset, I8255x_poll, I8255x_transmit, 0
123	dd 0x24498086, I8255x_probe, I8255x_reset, I8255x_poll, I8255x_transmit, 0	127	dd 0x24498086, I8255x_probe, I8255x_reset, I8255x_poll, I8255x_transmit, 0
124	dd 0x802910ec, rtl8029_probe, rtl8029_reset, rtl8029_poll, rtl8029_transmit, 0	128	dd 0x802910ec, rtl8029_probe, rtl8029_reset, rtl8029_poll, rtl8029_transmit, 0
125	dd 0x12111113, rtl8029_probe, rtl8029_reset, rtl8029_poll, rtl8029_transmit, 0	129	dd 0x12111113, rtl8029_probe, rtl8029_reset, rtl8029_poll, rtl8029_transmit, 0
126		130
127	dd 0x813910ec, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable	131	dd 0x813910ec, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable
128	dd 0x813810ec, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable	132	dd 0x813810ec, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable
129	dd 0x12111113, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable	133	dd 0x12111113, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable
130	dd 0x13601500, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable	134	dd 0x13601500, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable
131	dd 0x13604033, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable	135	dd 0x13604033, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable
132	dd 0x13001186, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable	136	dd 0x13001186, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable
133	dd 0x13401186, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable	137	dd 0x13401186, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable
134	dd 0xab0613d1, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable	138	dd 0xab0613d1, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable
135	dd 0xa1171259, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable	139	dd 0xa1171259, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable
136	dd 0xa11e1259, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable	140	dd 0xa11e1259, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable
137	dd 0xab0614ea, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable	141	dd 0xab0614ea, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable
138	dd 0xab0714ea, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable	142	dd 0xab0714ea, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable
139	dd 0x123411db, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable	143	dd 0x123411db, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable
140	dd 0x91301432, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable	144	dd 0x91301432, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable
141	dd 0x101202ac, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable	145	dd 0x101202ac, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable
142	dd 0x0106018a, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable	146	dd 0x0106018a, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable
143	dd 0x1211126c, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable	147	dd 0x1211126c, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable
144	dd 0x81391743, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable	148	dd 0x81391743, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable
145	dd 0x8139021b, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable	149	dd 0x8139021b, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable
146		150
147	dd 0x816810ec, rtl8169_probe, rtl8169_reset, rtl8169_poll, rtl8169_transmit, 0	151	dd 0x816810ec, rtl8169_probe, rtl8169_reset, rtl8169_poll, rtl8169_transmit, 0
148	dd 0x816910ec, rtl8169_probe, rtl8169_reset, rtl8169_poll, rtl8169_transmit, 0	152	dd 0x816910ec, rtl8169_probe, rtl8169_reset, rtl8169_poll, rtl8169_transmit, 0
149	dd 0x011616ec, rtl8169_probe, rtl8169_reset, rtl8169_poll, rtl8169_transmit, 0	153	dd 0x011616ec, rtl8169_probe, rtl8169_reset, rtl8169_poll, rtl8169_transmit, 0
150	dd 0x43001186, rtl8169_probe, rtl8169_reset, rtl8169_poll, rtl8169_transmit, 0	154	dd 0x43001186, rtl8169_probe, rtl8169_reset, rtl8169_poll, rtl8169_transmit, 0
151		155
152	dd 0x590010b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0	156	dd 0x590010b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
153	dd 0x592010b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0	157	dd 0x592010b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
154	dd 0x597010b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0	158	dd 0x597010b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
155	dd 0x595010b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0	159	dd 0x595010b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
156	dd 0x595110b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0	160	dd 0x595110b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
157	dd 0x595210b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0	161	dd 0x595210b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
158	dd 0x900010b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0	162	dd 0x900010b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
159	dd 0x900110b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0	163	dd 0x900110b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
160	dd 0x900410b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0	164	dd 0x900410b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
161	dd 0x900510b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0	165	dd 0x900510b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
162	dd 0x900610b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0	166	dd 0x900610b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
163	dd 0x900A10b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0	167	dd 0x900A10b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
164	dd 0x905010b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0	168	dd 0x905010b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
165	dd 0x905110b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0	169	dd 0x905110b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
166	dd 0x905510b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0	170	dd 0x905510b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
167	dd 0x905810b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0	171	dd 0x905810b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
168	dd 0x905A10b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0	172	dd 0x905A10b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
169	dd 0x920010b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0	173	dd 0x920010b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
170	dd 0x980010b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0	174	dd 0x980010b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
171	dd 0x980510b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0	175	dd 0x980510b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
172	dd 0x764610b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0	176	dd 0x764610b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
173	dd 0x505510b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0	177	dd 0x505510b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
174	dd 0x605510b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0	178	dd 0x605510b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
175	dd 0x605610b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0	179	dd 0x605610b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
176	dd 0x5b5710b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0	180	dd 0x5b5710b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
177	dd 0x505710b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0	181	dd 0x505710b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
178	dd 0x515710b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0	182	dd 0x515710b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
179	dd 0x525710b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0	183	dd 0x525710b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
180	dd 0x656010b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0	184	dd 0x656010b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
181	dd 0x656210b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0	185	dd 0x656210b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
182	dd 0x656410b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0	186	dd 0x656410b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
183	dd 0x450010b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0	187	dd 0x450010b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
184		188
185	dd 0x09001039, SIS900_probe, SIS900_reset, SIS900_poll, SIS900_transmit, 0	189	dd 0x09001039, SIS900_probe, SIS900_reset, SIS900_poll, SIS900_transmit, 0
186		190
187	dd 0x20001022, pcnet32_probe, pcnet32_reset, pcnet32_poll, pcnet32_xmit, 0	191	dd 0x20001022, pcnet32_probe, pcnet32_reset, pcnet32_poll, pcnet32_xmit, 0
188	dd 0x26251022, pcnet32_probe, pcnet32_reset, pcnet32_poll, pcnet32_xmit, 0	192	dd 0x26251022, pcnet32_probe, pcnet32_reset, pcnet32_poll, pcnet32_xmit, 0
189	dd 0x20011022, pcnet32_probe, pcnet32_reset, pcnet32_poll, pcnet32_xmit, 0	193	dd 0x20011022, pcnet32_probe, pcnet32_reset, pcnet32_poll, pcnet32_xmit, 0
190		194
191	;dd 0x08031516, mtd80x_probe, mtd80x_reset, mtd80x_poll, mtd80x_transmit, mtd80x_cable	195	;dd 0x08031516, mtd80x_probe, mtd80x_reset, mtd80x_poll, mtd80x_transmit, mtd80x_cable
192		196
193	; following cards are untested	197	; following cards are untested
194	dd 0x70161039, SIS900_probe, SIS900_reset, SIS900_poll, SIS900_transmit, 0	198	dd 0x70161039, SIS900_probe, SIS900_reset, SIS900_poll, SIS900_transmit, 0
195	;dd 0x08001516, mtd80x_probe, mtd80x_reset, mtd80x_poll, mtd80x_transmit, mtd80x_cable	199	;dd 0x08001516, mtd80x_probe, mtd80x_reset, mtd80x_poll, mtd80x_transmit, mtd80x_cable
196	;dd 0x08911516, mtd80x_probe, mtd80x_reset, mtd80x_poll, mtd80x_transmit, mtd80x_cable	200	;dd 0x08911516, mtd80x_probe, mtd80x_reset, mtd80x_poll, mtd80x_transmit, mtd80x_cable
197		201
198	rb PCICARDS_ENTRY_SIZE ; end of list marker, do not remove	202	rb PCICARDS_ENTRY_SIZE ; end of list marker, do not remove
199	endg	203	endg
200		204
201	uglobal	205	uglobal
202	;Net-stack's interface's settings	206	;Net-stack's interface's settings
203	node_addr: db 0,0,0,0,0,0	207	node_addr: db 0,0,0,0,0,0
204	gateway_ip: dd 0	208	gateway_ip: dd 0
205	dns_ip: dd 0	209	dns_ip: dd 0
206		210
207	eth_rx_data_len: dw 0	211	eth_rx_data_len: dw 0
208	eth_status: dd 0	212	eth_status: dd 0
209	io_addr: dd 0	213	io_addr: dd 0
210	hdrtype: db 0	214	hdrtype: db 0
211	vendor_device: dd 0	215	vendor_device: dd 0
212	pci_data: dd 0	216	pci_data: dd 0
213	pci_dev: dd 0	217	pci_dev: dd 0
214	pci_bus: dd 0	218	pci_bus: dd 0
215		219
216	; These will hold pointers to the selected driver functions	220	; These will hold pointers to the selected driver functions
217	drvr_probe: dd 0	221	drvr_probe: dd 0
218	drvr_reset: dd 0	222	drvr_reset: dd 0
219	drvr_poll: dd 0	223	drvr_poll: dd 0
220	drvr_transmit: dd 0	224	drvr_transmit: dd 0
221	drvr_cable: dd 0	225	drvr_cable: dd 0
222		226
223	endg	227	endg
224		228
225	iglobal	229	iglobal
226	broadcast_add: db 0xff,0xff,0xff,0xff,0xff,0xff	230	broadcast_add: db 0xff,0xff,0xff,0xff,0xff,0xff
227	subnet_mask: dd 0x00ffffff ; 255.255.255.0	231	subnet_mask: dd 0x00ffffff ; 255.255.255.0
228	endg	232	endg
229		233
230	include "arp.inc" ;arp-protocol functions	234	include "arp.inc" ;arp-protocol functions
231	include "pci.inc" ;PCI bus access functions	235	include "pci.inc" ;PCI bus access functions
232		236
233		237
234	;***************************************************************************	238	;***************************************************************************
235	; Function	239	; Function
236	; eth_tx	240	; eth_tx
237	;	241	;
238	; Description	242	; Description
239	; Looks at the NET1OUT_QUEUE for data to send.	243	; Looks at the NET1OUT_QUEUE for data to send.
240	; Stores that destination IP in a location used by the tx routine	244	; Stores that destination IP in a location used by the tx routine
241	; Looks up the MAC address in the ARP table; stores that where	245	; Looks up the MAC address in the ARP table; stores that where
242	; the tx routine can get it	246	; the tx routine can get it
243	; Get the length of the data. Store that where the tx routine wants it	247	; Get the length of the data. Store that where the tx routine wants it
244	; Call tx	248	; Call tx
245	; Places buffer on empty queue when the tx routine finished	249	; Places buffer on empty queue when the tx routine finished
246	;	250	;
247	;***************************************************************************	251	;***************************************************************************
248	proc eth_tx stdcall uses ebx esi edi	252	proc eth_tx stdcall uses ebx esi edi
249	local MACAddress dp ? ;allocate 6 bytes in the stack	253	local MACAddress dp ? ;allocate 6 bytes in the stack
250		254
251	; Look for a buffer to tx	255	; Look for a buffer to tx
252	mov eax, NET1OUT_QUEUE	256	mov eax, NET1OUT_QUEUE
253	call dequeue	257	call dequeue
254	cmp ax, NO_BUFFER	258	cmp ax, NO_BUFFER
255	je .exit ; Exit if no buffer available	259	je .exit ; Exit if no buffer available
256		260
257	push eax ;save buffer number	261	push eax ;save buffer number
258		262
259	; convert buffer pointer eax to the absolute address	263	; convert buffer pointer eax to the absolute address
260	imul eax, IPBUFFSIZE	264	imul eax, IPBUFFSIZE
261	add eax, IPbuffs	265	add eax, IPbuffs
262		266
263	; Extract the destination IP	267	; Extract the destination IP
264	; find the destination IP in the ARP table, get MAC	268	; find the destination IP in the ARP table, get MAC
265	; store this MAC in 'MACAddress'	269	; store this MAC in 'MACAddress'
266	mov ebx, eax ; Save buffer address	270	mov ebx, eax ; Save buffer address
267	mov edx, [ebx + 16] ; get destination address	271	mov edx, [ebx + 16] ; get destination address
268		272
269	; If the destination address is 255.255.255.255,	273	; If the destination address is 255.255.255.255,
270	; set the MACAddress to all ones ( broadcast )	274	; set the MACAddress to all ones ( broadcast )
271	cld	275	cld
272	mov esi, broadcast_add	276	mov esi, broadcast_add
273	lea edi, [MACAddress]	277	lea edi, [MACAddress]
274	movsd	278	movsd
275	movsw	279	movsw
276	cmp edx, 0xffffffff	280	cmp edx, 0xffffffff
277	je .send ; If it is broadcast, just send	281	je .send ; If it is broadcast, just send
278		282
279	lea eax, [MACAddress] ;cause this is local variable	283	lea eax, [MACAddress] ;cause this is local variable
280	stdcall arp_table_manager, ARP_TABLE_IP_TO_MAC, edx, eax ;opcode,IP,MAC_ptr - Get the MAC address.	284	stdcall arp_table_manager, ARP_TABLE_IP_TO_MAC, edx, eax ;opcode,IP,MAC_ptr - Get the MAC address.
281		285
282	cmp eax, ARP_VALID_MAPPING	286	cmp eax, ARP_VALID_MAPPING
283	je .send	287	je .send
284		288
285	; No valid entry. Has the request been sent, but timed out?	289	; No valid entry. Has the request been sent, but timed out?
286	cmp eax, ARP_RESPONSE_TIMEOUT	290	cmp eax, ARP_RESPONSE_TIMEOUT
287	je .freebuf	291	je .freebuf
288		292
289	.wait_response: ;we wait arp-response	293	.wait_response: ;we wait arp-response
290	; Re-queue the packet, and exit	294	; Re-queue the packet, and exit
291	pop ebx	295	pop ebx
292	mov eax, NET1OUT_QUEUE	296	mov eax, NET1OUT_QUEUE
293	call queue ; Get the buffer back	297	call queue ; Get the buffer back
294	jmp .exit	298	jmp .exit
295		299
296	.send: ;if ARP_VALID_MAPPING then send the packet	300	.send: ;if ARP_VALID_MAPPING then send the packet
297	lea edi, [MACAddress] ; Pointer to 48 bit destination address	301	lea edi, [MACAddress] ; Pointer to 48 bit destination address
298	movzx ecx, word[ebx+2] ; Size of IP packet to send	302	movzx ecx, word[ebx+2] ; Size of IP packet to send
299	xchg ch, cl ; because mirror byte-order	303	xchg ch, cl ; because mirror byte-order
300	mov esi, ebx ; Pointer to packet data	304	mov esi, ebx ; Pointer to packet data
301	mov bx, ETHER_IP ; Type of packet	305	mov bx, ETHER_IP ; Type of packet
302	call dword [drvr_transmit] ; Call the drivers transmit function	306	call dword [drvr_transmit] ; Call the drivers transmit function
303		307
304	; OK, we have sent a packet, so increment the count	308	; OK, we have sent a packet, so increment the count
305	inc dword [ip_tx_count]	309	inc dword [ip_tx_count]
306		310
307	; And finally, return the buffer to the free queue	311	; And finally, return the buffer to the free queue
308	.freebuf:	312	.freebuf:
309	pop eax	313	pop eax
310	call freeBuff	314	call freeBuff
311		315
312	.exit:	316	.exit:
313	ret	317	ret
314	endp	318	endp
315		319
316	;***************************************************************************	320	;***************************************************************************
317	; Function	321	; Function
318	; ether_IP_handler	322	; ether_IP_handler
319	;	323	;
320	; Description	324	; Description
321	; Called when an IP ethernet packet is received on the ethernet	325	; Called when an IP ethernet packet is received on the ethernet
322	; Header + Data is in Ether_buffer[]	326	; Header + Data is in Ether_buffer[]
323	; We just need to get a buffer from the 'free' queue, and	327	; We just need to get a buffer from the 'free' queue, and
324	; store the packet in it, then insert the packet number into the	328	; store the packet in it, then insert the packet number into the
325	; IPRX queue.	329	; IPRX queue.
326	; If no queue entry is available, the packet is silently discarded	330	; If no queue entry is available, the packet is silently discarded
327	; All registers may be destroyed	331	; All registers may be destroyed
328	;	332	;
329	;***************************************************************************	333	;***************************************************************************
330	ether_IP_handler:	334	ether_IP_handler:
331	mov eax, EMPTY_QUEUE	335	mov eax, EMPTY_QUEUE
332	call dequeue	336	call dequeue
333	cmp ax, NO_BUFFER	337	cmp ax, NO_BUFFER
334	je eiph00x	338	je eiph00x
335		339
336	; convert buffer pointer eax to the absolute address	340	; convert buffer pointer eax to the absolute address
337	push eax	341	push eax
338	mov ecx, IPBUFFSIZE	342	mov ecx, IPBUFFSIZE
339	mul ecx	343	mul ecx
340	add eax, IPbuffs	344	add eax, IPbuffs
341		345
342	mov edi, eax	346	mov edi, eax
343		347
344	; get a pointer to the start of the DATA	348	; get a pointer to the start of the DATA
345	mov esi, ETH_FRAME.Data	349	mov esi, ETH_FRAME.Data
346		350
347	; Now store it all away	351	; Now store it all away
348	mov ecx, IPBUFFSIZE / 4 ; Copy all of the available	352	mov ecx, IPBUFFSIZE / 4 ; Copy all of the available
349	; data across - worse case	353	; data across - worse case
350	cld	354	cld
351	rep movsd	355	rep movsd
352		356
353	; And finally, place the buffer in the IPRX queue	357	; And finally, place the buffer in the IPRX queue
354	pop ebx	358	pop ebx
355	mov eax, IPIN_QUEUE	359	mov eax, IPIN_QUEUE
356	call queue	360	call queue
357		361
358	eiph00x:	362	eiph00x:
359	ret	363	ret
360		364
361	;***************************************************************************	365	;***************************************************************************
362	; Function	366	; Function
363	; eth_probe	367	; eth_probe
364	; Description	368	; Description
365	; Searches for an ethernet card. If found, the card is enabled and	369	; Searches for an ethernet card. If found, the card is enabled and
366	; the ethernet -> IP link established	370	; the ethernet -> IP link established
367	;	371	;
368	; This function scans the PCI bus looking for a supported device.	372	; This function scans the PCI bus looking for a supported device.
369	; ISA bus is currently not supported.	373	; ISA bus is currently not supported.
370	;	374	;
371	; eax is 0 if no hardware found	375	; eax is 0 if no hardware found
372	;***************************************************************************	376	;***************************************************************************
373	eth_probe:	377	eth_probe:
374	; Find a card on the PCI bus, and get it's address	378	; Find a card on the PCI bus, and get it's address
375	call scan_bus ; Find the ethernet cards PIC address	379	call scan_bus ; Find the ethernet cards PIC address
376	xor eax, eax	380	xor eax, eax
377	cmp [io_addr], eax	381	cmp [io_addr], eax
378	je ep_00x ; Return 0 in eax if no cards found	382	je ep_00x ; Return 0 in eax if no cards found
379		383
380	call dword [drvr_probe] ; Call the drivers probe function	384	call dword [drvr_probe] ; Call the drivers probe function
381		385
382	mov eax, [io_addr] ; return a non zero value	386	mov eax, [io_addr] ; return a non zero value
383		387
384	ep_00x:	388	ep_00x:
385	ret	389	ret
386		390
387	;***************************************************************************	391	;***************************************************************************
388	; Function	392	; Function
389	; ethernet_driver	393	; ethernet_driver
390	;	394	;
391	; Description	395	; Description
392	; The ethernet RX and TX handler	396	; The ethernet RX and TX handler
393	; This is a kernel function, called by stack_handler	397	; This is a kernel function, called by stack_handler
394	;	398	;
395	;***************************************************************************	399	;***************************************************************************
396	ethernet_driver:	400	ethernet_driver:
397	; Do nothing if the driver is inactive	401	; Do nothing if the driver is inactive
398	cmp [ethernet_active], byte 0	402	cmp [ethernet_active], byte 0
399	je eth_exit	403	je eth_exit
400		404
401	call eth_rx	405	call eth_rx
402	call eth_tx	406	call eth_tx
403		407
404	eth_exit:	408	eth_exit:
405	ret	409	ret
406		410
407	;***************************************************************************	411	;***************************************************************************
408	; Function	412	; Function
409	; eth_rx	413	; eth_rx
410	;	414	;
411	; Description	415	; Description
412	; Polls the ethernet card for received data. Extracts if present	416	; Polls the ethernet card for received data. Extracts if present
413	; Depending on the Protocol within the packet:	417	; Depending on the Protocol within the packet:
414	; ARP : Pass to ARP_handler. This may result in an ARP reply	418	; ARP : Pass to ARP_handler. This may result in an ARP reply
415	; being tx'ed	419	; being tx'ed
416	; IP : Store in an IP buffer	420	; IP : Store in an IP buffer
417	;	421	;
418	;***************************************************************************	422	;***************************************************************************
419	eth_rx:	423	eth_rx:
420	xor ax, ax	424	xor ax, ax
421	mov [eth_rx_data_len], ax	425	mov [eth_rx_data_len], ax
422	call dword [drvr_poll] ; Call the drivers poll function	426	call dword [drvr_poll] ; Call the drivers poll function
423		427
424	mov ax, [eth_rx_data_len]	428	mov ax, [eth_rx_data_len]
425	cmp ax, 0	429	cmp ax, 0
426	je .exit	430	je .exit
427		431
428		432
429	; Check the protocol. Call appropriate handler	433	; Check the protocol. Call appropriate handler
430		434
431	mov ax, [ETH_FRAME.Type] ; The address of the protocol word	435	mov ax, [ETH_FRAME.Type] ; The address of the protocol word
432		436
433	cmp ax, ETHER_IP	437	cmp ax, ETHER_IP
434	je .is_ip ; It's IP	438	je .is_ip ; It's IP
435		439
436	cmp ax, ETHER_ARP	440	cmp ax, ETHER_ARP
437	je .is_arp ; It is ARP	441	je .is_arp ; It is ARP
438		442
439	jmp .exit ; If not IP or ARP, ignore	443	jmp .exit ; If not IP or ARP, ignore
440		444
441	.is_ip:	445	.is_ip:
442	DEBUGF 1,"K : eth_rx - IP packet\n"	446	DEBUGF 1,"K : eth_rx - IP packet\n"
443	inc dword [ip_rx_count]	447	inc dword [ip_rx_count]
444	call ether_IP_handler	448	call ether_IP_handler
445	jmp .exit	449	jmp .exit
446		450
447	.is_arp:	451	.is_arp:
448	DEBUGF 1,"K : eth_rx - ARP packet\n"	452	DEBUGF 1,"K : eth_rx - ARP packet\n"
449	; At this point, the packet is still in the Ether_buffer	453	; At this point, the packet is still in the Ether_buffer
450	call arp_handler	454	call arp_handler
451		455
452	.exit:	456	.exit:
453	ret	457	ret

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(root)/kernel/branches/flat_kernel/network/eth_drv/ethernet.inc – Rev 387 → 444