Subversion Repositories Kolibri OS

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  1. ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
  2. ;;                                                                 ;;
  3. ;; Copyright (C) KolibriOS team 2004-2008. All rights reserved.    ;;
  4. ;; Distributed under terms of the GNU General Public License       ;;
  5. ;;                                                                 ;;
  6. ;;  ETHERNET.INC                                                   ;;
  7. ;;                                                                 ;;
  8. ;;  Ethernet network layer for Menuet OS                           ;;
  9. ;;                                                                 ;;
  10. ;;  This file contains the following:                              ;;
  11. ;;      PCI bus scanning for valid devices                         ;;
  12. ;;      Table of supported ethernet drivers                        ;;
  13. ;;      Code to identify and activate a supported driver           ;;
  14. ;;      ARP handler                                                ;;
  15. ;;      Driver interface to the IP layer                           ;;
  16. ;;      Gateway support                                            ;;
  17. ;;                                                                 ;;
  18. ;;  Individual driver files are included here                      ;;
  19. ;;                                                                 ;;
  20. ;;  The PCI bus scanning code was ported from the etherboot        ;;
  21. ;;  5.0.6 project. The copyright statement for that code is        ;;
  22. ;;                                                                 ;;
  23. ;;          GNU GENERAL PUBLIC LICENSE                             ;;
  24. ;;             Version 2, June 1991                                ;;
  25. ;;                                                                 ;;
  26. ;;  remaining parts Copyright 2002 Mike Hibbett                    ;;
  27. ;;   mikeh@oceanfree.net                                           ;;
  28. ;;                                                                 ;;
  29. ;;  See file COPYING for details                                   ;;
  30. ;;                                                                 ;;
  31. ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
  32.  
  33. $Revision: 3488 $
  34.  
  35.  
  36. ;********************************************************************
  37. ;   Interface
  38. ;      ethernet_driver   called by stack_handler in stack.inc
  39. ;      eth_probe         called by app_stack_handler in stack.inc
  40. ;
  41. ;********************************************************************
  42.  
  43. ETHER_IP                    equ     0x0008      ; Reversed from 0800 for intel
  44. ETHER_ARP                   equ     0x0608      ; Reversed from 0806 for intel
  45. ETHER_RARP                  equ     0x3580
  46.  
  47. struc ETH_FRAME
  48. {  .DstMAC       dp   ?  ;destination MAC-address [6 bytes]
  49.    .SrcMAC       dp   ?  ;source MAC-address [6 bytes]
  50.    .Type         dw   ?  ;type of the upper-layer protocol [2 bytes]
  51.    .Data         db   ?  ;data [46-1500 bytes]
  52. }
  53.  
  54. virtual at Ether_buffer
  55.   ETH_FRAME ETH_FRAME
  56. end virtual
  57.  
  58.  
  59. ; Some useful information on data structures
  60.  
  61. ;     Ethernet Packet - ARP Request example
  62. ;
  63. ;   0                   1                   2                   3
  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
  65. ;
  66. ;   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
  67. ;   |       Dest   H/W Address                                      |
  68. ;   |                    ( 14 byte header )                         |
  69. ;   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
  70. ;   |                               |     Source     H/W Address    |
  71. ;   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
  72. ;   |                                                               |
  73. ;   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
  74. ;   |    Protocol - ARP 08  06      |
  75. ;   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
  76.  
  77. ;   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
  78. ;   |  H/W Type  00           01    |  Protocol Type   08 00        |
  79. ;   |                   ( ARP Request packet )                      |
  80. ;   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
  81. ;   | HLen    0x06  | PLen    0x04  |    OpCode        00   01      |
  82. ;   |               ( 0001 for request, 0002 for reply )            |
  83. ;   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
  84. ;   | Source Hardware Address ( MAC Address )                       |
  85. ;   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
  86. ;   |                               |  Source IP Address            |
  87. ;   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
  88. ;   |                               | Destination Hardware Address  |
  89. ;   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
  90. ;   |                                                               |
  91. ;   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
  92. ;   | Destination IP Address                                        |
  93. ;   +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+
  94.  
  95. ; Include individual drivers source files at this point.
  96. ; If you create a new driver, include it below.
  97.  
  98. include "drivers/rtl8029.inc"
  99. include "drivers/i8255x.inc"
  100. include "drivers/rtl8139.inc"
  101. ;include "drivers/3c59x.inc"
  102. ;include "drivers/sis900.inc"
  103. ;include "drivers/pcnet32.inc"
  104. include "drivers/rtl8169.inc"
  105. ;include "drivers/forcedeth.inc"
  106.  
  107. ; PCICards
  108. ; ========
  109. ; PCI vendor and hardware types for hardware supported by the above drivers
  110. ; If you add a driver, ensure you update this datastructure, otherwise the
  111. ; card will not be probed.
  112. ; Each driver is defined by 4 double words. These are
  113. ;   PCIVendorDevice  probeFunction ResetFunction PollFunction transmitFunction
  114. ; The last entry must be kept at all zeros, to indicate the end of the list
  115. ; As a PCI driver may support more than one hardware implementation, there may
  116. ; be several lines which refer to the same functions.
  117. ; The first driver found on the PCI bus will be the one used.
  118.  
  119. PCICARDS_ENTRY_SIZE         equ     24    ; Size of each PCICARDS entry
  120.  
  121. iglobal
  122. PCICards:
  123. dd  0x12098086, I8255x_probe, I8255x_reset, I8255x_poll, I8255x_transmit, 0
  124. dd  0x10298086, I8255x_probe, I8255x_reset, I8255x_poll, I8255x_transmit, 0
  125. dd  0x12298086, I8255x_probe, I8255x_reset, I8255x_poll, I8255x_transmit, 0
  126. dd  0x10308086, I8255x_probe, I8255x_reset, I8255x_poll, I8255x_transmit, 0
  127. dd  0x24498086, I8255x_probe, I8255x_reset, I8255x_poll, I8255x_transmit, 0
  128.  
  129. dd  0x802910ec, rtl8029_probe, rtl8029_reset, rtl8029_poll, rtl8029_transmit, 0
  130.  
  131. dd  0x813910ec, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable  ; tested by hidnplayr: works ok
  132. dd  0x813810ec, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable
  133. dd  0x12111113, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable  ; tested by hidnplayr: works ok
  134. dd  0x13601500, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable
  135. dd  0x13604033, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable
  136. dd  0x13001186, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable
  137. dd  0x13401186, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable
  138. dd  0xab0613d1, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable
  139. dd  0xa1171259, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable
  140. dd  0xa11e1259, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable
  141. dd  0xab0614ea, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable
  142. dd  0xab0714ea, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable
  143. dd  0x123411db, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable
  144. dd  0x91301432, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable
  145. dd  0x101202ac, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable
  146. dd  0x0106018a, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable
  147. dd  0x1211126c, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable
  148. dd  0x81391743, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable
  149. dd  0x8139021b, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable
  150.  
  151. dd  0x816810ec, rtl8169_probe, rtl8169_reset, rtl8169_poll, rtl8169_transmit, 0
  152. dd  0x816910ec, rtl8169_probe, rtl8169_reset, rtl8169_poll, rtl8169_transmit, 0
  153. dd  0x011616ec, rtl8169_probe, rtl8169_reset, rtl8169_poll, rtl8169_transmit, 0
  154. dd  0x43001186, rtl8169_probe, rtl8169_reset, rtl8169_poll, rtl8169_transmit, 0
  155. dd  0x816710ec, rtl8169_probe, rtl8169_reset, rtl8169_poll, rtl8169_transmit, 0
  156.  
  157. if 0
  158. dd  0x590010b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
  159. dd  0x592010b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
  160. dd  0x597010b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
  161. dd  0x595010b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
  162. dd  0x595110b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
  163. dd  0x595210b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
  164. dd  0x900010b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
  165. dd  0x900110b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
  166. dd  0x900410b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
  167. dd  0x900510b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
  168. dd  0x900610b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
  169. dd  0x900A10b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
  170. dd  0x905010b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
  171. dd  0x905110b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
  172. dd  0x905510b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
  173. dd  0x905810b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
  174. dd  0x905A10b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
  175. dd  0x920010b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
  176. dd  0x980010b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
  177. dd  0x980510b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
  178. dd  0x764610b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
  179. dd  0x505510b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
  180. dd  0x605510b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
  181. dd  0x605610b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
  182. dd  0x5b5710b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
  183. dd  0x505710b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
  184. dd  0x515710b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
  185. dd  0x525710b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
  186. dd  0x656010b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
  187. dd  0x656210b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
  188. dd  0x656410b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
  189. dd  0x450010b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0
  190.  
  191. dd  0x09001039, SIS900_probe, SIS900_reset, SIS900_poll, SIS900_transmit, 0
  192.  
  193. dd  0x20001022, pcnet32_probe, pcnet32_reset, pcnet32_poll, pcnet32_xmit, 0
  194. dd  0x26251022, pcnet32_probe, pcnet32_reset, pcnet32_poll, pcnet32_xmit, 0
  195. dd  0x20011022, pcnet32_probe, pcnet32_reset, pcnet32_poll, pcnet32_xmit, 0
  196.  
  197. ;dd  0x08031516, mtd80x_probe, mtd80x_reset, mtd80x_poll, mtd80x_transmit, mtd80x_cable
  198.  
  199. ; following cards are untested
  200. dd  0x70161039, SIS900_probe, SIS900_reset, SIS900_poll, SIS900_transmit, 0
  201. ;dd  0x08001516, mtd80x_probe, mtd80x_reset, mtd80x_poll, mtd80x_transmit, mtd80x_cable
  202. ;dd  0x08911516, mtd80x_probe, mtd80x_reset, mtd80x_poll, mtd80x_transmit, mtd80x_cable
  203.  
  204. dd 0x006610de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; nVidia Corporation nForce2 Ethernet Controller
  205. dd 0x01c310de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested
  206. dd 0x00D610de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested
  207. dd 0x008610de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested
  208. dd 0x008c10de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested
  209. dd 0x00e610de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested
  210. dd 0x00df10de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested
  211. dd 0x005610de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested
  212. dd 0x005710de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested
  213. dd 0x003710de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested
  214. dd 0x003810de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested
  215. dd 0x026810de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested
  216. dd 0x026910de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested
  217. dd 0x037210de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested
  218. dd 0x037310de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested
  219. dd 0x03e510de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested
  220. dd 0x03e610de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested
  221. dd 0x03ee10de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested
  222. dd 0x03ef10de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested
  223. dd 0x045010de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested
  224. dd 0x045110de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested
  225. dd 0x045210de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested
  226. dd 0x045310de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested
  227. dd 0x054c10de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested
  228. dd 0x054d10de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested
  229. dd 0x054e10de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested
  230. dd 0x054f10de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested
  231. dd 0x07dc10de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested
  232. dd 0x07dd10de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested
  233. dd 0x07de10de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested
  234. dd 0x07df10de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested
  235. dd 0x076010de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; MCP77 Ethernet Controller
  236. dd 0x076110de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested
  237. dd 0x076210de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested
  238. dd 0x076310de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested
  239. dd 0x0ab010de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested
  240. dd 0x0ab110de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested
  241. dd 0x0ab210de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested
  242. dd 0x0ab310de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested
  243. dd 0x0d7d10de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested
  244.  
  245. end if
  246.  
  247. rb PCICARDS_ENTRY_SIZE  ; end of list marker, do not remove
  248. endg
  249.  
  250. uglobal
  251. ;Net-stack's interface's settings
  252.   node_addr:          db  0,0,0,0,0,0
  253.   gateway_ip:         dd  0
  254.   dns_ip:             dd  0
  255.  
  256.   eth_rx_data_len:    dw  0
  257.   eth_status:         dd  0
  258.   io_addr:            dd  0
  259.   hdrtype:            db  0
  260.   vendor_device:      dd  0
  261.   pci_data:           dd  0
  262.   pci_dev:            dd  0
  263.   pci_bus:            dd  0
  264.  
  265.   ; These will hold pointers to the selected driver functions
  266.   drvr_probe:         dd  0
  267.   drvr_reset:         dd  0
  268.   drvr_poll:          dd  0
  269.   drvr_transmit:      dd  0
  270.   drvr_cable:         dd  0
  271.  
  272. endg
  273.  
  274. iglobal
  275.   broadcast_add:      db  0xff,0xff,0xff,0xff,0xff,0xff
  276.   subnet_mask:        dd  0x00ffffff   ; 255.255.255.0
  277. endg
  278.  
  279. include "arp.inc"    ;arp-protocol functions
  280. include "pci.inc"    ;PCI bus access functions
  281.  
  282.  
  283. ;***************************************************************************
  284. ;   Function
  285. ;      eth_tx
  286. ;
  287. ;   Description
  288. ;      Looks at the NET1OUT_QUEUE for data to send.
  289. ;      Stores that destination IP in a location used by the tx routine
  290. ;      Looks up the MAC address in the ARP table; stores that where
  291. ;      the tx routine can get it
  292. ;      Get the length of the data. Store that where the tx routine wants it
  293. ;      Call tx
  294. ;      Places buffer on empty queue when the tx routine finished
  295. ;
  296. ;***************************************************************************
  297. proc eth_tx stdcall uses ebx esi edi
  298. local MACAddress  dp  ?  ;allocate 6 bytes in the stack
  299.  
  300.     ; Look for a buffer to tx
  301.     mov     eax, NET1OUT_QUEUE
  302.     call    dequeue
  303.     cmp     ax, NO_BUFFER
  304.     je      .exit            ; Exit if no buffer available
  305.  
  306.     push    eax  ;save buffer number
  307.  
  308.     ; convert buffer pointer eax to the absolute address
  309.     imul    eax, IPBUFFSIZE
  310.     add     eax, IPbuffs
  311.  
  312.     ; Extract the destination IP
  313.     ; find the destination IP in the ARP table, get MAC
  314.     ; store this MAC in 'MACAddress'
  315.     mov     ebx, eax               ; Save buffer address
  316.     mov     edx, [ebx + 16]        ; get destination address
  317.  
  318.     ; If the destination address is 255.255.255.255,
  319.     ; set the MACAddress to all ones ( broadcast )
  320.     cld
  321.     mov     esi, broadcast_add
  322.     lea     edi, [MACAddress]
  323.     movsd
  324.     movsw
  325.     cmp     edx, 0xffffffff
  326.     je      .send                ; If it is broadcast, just send
  327.  
  328.     lea     eax, [MACAddress]    ;cause this is local variable
  329.     stdcall arp_table_manager, ARP_TABLE_IP_TO_MAC, edx, eax ;opcode,IP,MAC_ptr - Get the MAC address.
  330.  
  331.     cmp     eax, ARP_VALID_MAPPING
  332.     je      .send
  333.  
  334.     ; No valid entry. Has the request been sent, but timed out?
  335.     cmp     eax, ARP_RESPONSE_TIMEOUT
  336.     je      .freebuf
  337.  
  338.   .wait_response:                   ;we wait arp-response
  339.                                     ; Re-queue the packet, and exit
  340.     pop     ebx
  341.     mov     eax, NET1OUT_QUEUE
  342.     call    queue                        ; Get the buffer back
  343.     jmp     .exit
  344.  
  345.   .send:    ;if ARP_VALID_MAPPING then send the packet
  346.     lea     edi, [MACAddress]     ; Pointer to 48 bit destination address
  347.     movzx   ecx, word[ebx+2]      ; Size of IP packet to send
  348.     xchg    ch, cl                ; because mirror byte-order
  349.     mov     esi, ebx              ; Pointer to packet data
  350.     mov     bx, ETHER_IP          ; Type of packet
  351.     push    ebp
  352.     call    dword [drvr_transmit] ; Call the drivers transmit function
  353.     pop     ebp
  354.  
  355.     ; OK, we have sent a packet, so increment the count
  356.     inc     dword [ip_tx_count]
  357.  
  358.     ; And finally, return the buffer to the free queue
  359.   .freebuf:
  360.     pop     eax
  361.     call    freeBuff
  362.  
  363.   .exit:
  364.     ret
  365. endp
  366.  
  367. ;***************************************************************************
  368. ;   Function
  369. ;      ether_IP_handler
  370. ;
  371. ;   Description
  372. ;      Called when an IP ethernet packet is received on the ethernet
  373. ;      Header + Data is in Ether_buffer[]
  374. ;      We just need to get a buffer from the 'free' queue, and
  375. ;      store the packet in it, then insert the packet number into the
  376. ;      IPRX queue.
  377. ;      If no queue entry is available, the packet is silently discarded
  378. ;      All registers may be destroyed
  379. ;
  380. ;***************************************************************************
  381. ;uglobal
  382. ;  ether_IP_handler_cnt dd ?
  383. ;endg
  384. ether_IP_handler:
  385.     mov     eax, EMPTY_QUEUE
  386.     call    dequeue
  387.     cmp     ax, NO_BUFFER
  388.     je      eiph00x
  389.  
  390.     ; convert buffer pointer eax to the absolute address
  391.     push    eax
  392.     mov     ecx, IPBUFFSIZE
  393.     mul     ecx
  394.     add     eax, IPbuffs
  395.  
  396.     mov     edi, eax
  397.  
  398.     ; get a pointer to the start of the DATA
  399.     mov     esi, ETH_FRAME.Data
  400.  
  401.     ; Now store it all away
  402.     mov     ecx, IPBUFFSIZE / 4     ; Copy all of the available
  403.                               ; data across - worse case
  404.     cld
  405.     rep     movsd
  406.  
  407. ;        inc     [ether_IP_handler_cnt]
  408. ;        DEBUGF  1, "K : ether_IP_handler (%u)\n", [ether_IP_handler_cnt]
  409.  
  410.     ; And finally, place the buffer in the IPRX queue
  411.     pop     ebx
  412.     mov     eax, IPIN_QUEUE
  413.     call    queue
  414.  
  415. eiph00x:
  416.     ret
  417.  
  418. ;***************************************************************************
  419. ;   Function
  420. ;      eth_probe
  421. ;   Description
  422. ;      Searches for an ethernet card. If found, the card is enabled and
  423. ;      the ethernet -> IP link established
  424. ;
  425. ;      This function scans the PCI bus looking for a supported device.
  426. ;      ISA bus is currently not supported.
  427. ;
  428. ;        eax is 0 if no hardware found
  429. ;***************************************************************************
  430. eth_probe:
  431.     ; Find a card on the PCI bus, and get it's address
  432.     call    scan_bus                    ; Find the ethernet cards PIC address
  433.     xor     eax, eax
  434.     cmp     [io_addr], eax
  435.     je      ep_00x                      ; Return 0 in eax if no cards found
  436.  
  437.     call    dword [drvr_probe]          ; Call the drivers probe function
  438.  
  439.     mov     eax, [io_addr]              ; return a non zero value
  440.  
  441. ep_00x:
  442.     ret
  443.  
  444. ;***************************************************************************
  445. ;   Function
  446. ;      ethernet_driver
  447. ;
  448. ;   Description
  449. ;       The ethernet RX and TX handler
  450. ;       This is a kernel function, called by stack_handler
  451. ;
  452. ;***************************************************************************
  453. ethernet_driver:
  454.     ; Do nothing if the driver is inactive
  455.     cmp     [ethernet_active], byte 0
  456.     je      eth_exit
  457.  
  458.     call    eth_rx
  459.     call    eth_tx
  460.  
  461. eth_exit:
  462.     ret
  463.  
  464. ;***************************************************************************
  465. ;   Function
  466. ;      eth_rx
  467. ;
  468. ;   Description
  469. ;      Polls the ethernet card for received data. Extracts if present
  470. ;       Depending on the Protocol within the packet:
  471. ;         ARP : Pass to ARP_handler. This may result in an ARP reply
  472. ;               being tx'ed
  473. ;         IP  : Store in an IP buffer
  474. ;
  475. ;***************************************************************************
  476. eth_rx:
  477.     xor     ax, ax
  478.     mov     [eth_rx_data_len], ax
  479.     call    dword [drvr_poll]       ; Call the drivers poll function
  480.  
  481.     mov     ax, [eth_rx_data_len]
  482.     cmp     ax, 0
  483.     je      .exit
  484.  
  485.  
  486.     ; Check the protocol. Call appropriate handler
  487.  
  488.     mov     ax, [ETH_FRAME.Type]    ; The address of the protocol word
  489.  
  490.     cmp     ax, ETHER_IP
  491.     je      .is_ip                   ; It's IP
  492.  
  493.     cmp     ax, ETHER_ARP
  494.     je      .is_arp                  ; It is ARP
  495.  
  496.     DEBUGF  1,"K : eth_rx - dumped (%u)\n", ax
  497.     inc     [dumped_rx_count]
  498.     jmp     .exit               ; If not IP or ARP, ignore
  499.  
  500.   .is_ip:
  501. ;    DEBUGF  1,"K : eth_rx - IP packet\n"
  502.     inc     dword [ip_rx_count]
  503.     call    ether_IP_handler
  504.     jmp     .exit
  505.  
  506.   .is_arp:
  507. ;    DEBUGF  1,"K : eth_rx - ARP packet\n"
  508.     ; At this point, the packet is still in the Ether_buffer
  509.     call    arp_handler
  510.  
  511.   .exit:
  512.     ret
  513.