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Rev | Author | Line No. | Line |
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2288 | clevermous | 1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ;; ;; |
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3 | ;; Copyright (C) KolibriOS team 2004-2008. All rights reserved. ;; |
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4 | ;; Distributed under terms of the GNU General Public License ;; |
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5 | ;; ;; |
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6 | ;; ETHERNET.INC ;; |
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7 | ;; ;; |
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8 | ;; Ethernet network layer for Menuet OS ;; |
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9 | ;; ;; |
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10 | ;; This file contains the following: ;; |
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11 | ;; PCI bus scanning for valid devices ;; |
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12 | ;; Table of supported ethernet drivers ;; |
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13 | ;; Code to identify and activate a supported driver ;; |
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14 | ;; ARP handler ;; |
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15 | ;; Driver interface to the IP layer ;; |
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16 | ;; Gateway support ;; |
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17 | ;; ;; |
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18 | ;; Individual driver files are included here ;; |
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19 | ;; ;; |
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20 | ;; The PCI bus scanning code was ported from the etherboot ;; |
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21 | ;; 5.0.6 project. The copyright statement for that code is ;; |
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22 | ;; ;; |
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23 | ;; GNU GENERAL PUBLIC LICENSE ;; |
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24 | ;; Version 2, June 1991 ;; |
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25 | ;; ;; |
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26 | ;; remaining parts Copyright 2002 Mike Hibbett ;; |
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27 | ;; mikeh@oceanfree.net ;; |
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28 | ;; ;; |
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29 | ;; See file COPYING for details ;; |
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30 | ;; ;; |
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31 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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32 | |||
33 | $Revision: 2288 $ |
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34 | |||
35 | |||
36 | ;******************************************************************** |
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37 | ; Interface |
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38 | ; ethernet_driver called by stack_handler in stack.inc |
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39 | ; eth_probe called by app_stack_handler in stack.inc |
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40 | ; |
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41 | ;******************************************************************** |
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42 | |||
43 | ETHER_IP equ 0x0008 ; Reversed from 0800 for intel |
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44 | ETHER_ARP equ 0x0608 ; Reversed from 0806 for intel |
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45 | ETHER_RARP equ 0x3580 |
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46 | |||
47 | struc ETH_FRAME |
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48 | { .DstMAC dp ? ;destination MAC-address [6 bytes] |
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49 | .SrcMAC dp ? ;source MAC-address [6 bytes] |
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50 | .Type dw ? ;type of the upper-layer protocol [2 bytes] |
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51 | .Data db ? ;data [46-1500 bytes] |
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52 | } |
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53 | |||
54 | virtual at Ether_buffer |
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55 | ETH_FRAME ETH_FRAME |
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56 | end virtual |
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57 | |||
58 | |||
59 | ; Some useful information on data structures |
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60 | |||
61 | ; Ethernet Packet - ARP Request example |
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62 | ; |
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63 | ; 0 1 2 3 |
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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 |
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65 | ; |
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66 | ; +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
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67 | ; | Dest H/W Address | |
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68 | ; | ( 14 byte header ) | |
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69 | ; +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
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70 | ; | | Source H/W Address | |
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71 | ; +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
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72 | ; | | |
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73 | ; +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
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74 | ; | Protocol - ARP 08 06 | |
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75 | ; +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
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76 | |||
77 | ; +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
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78 | ; | H/W Type 00 01 | Protocol Type 08 00 | |
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79 | ; | ( ARP Request packet ) | |
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80 | ; +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
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81 | ; | HLen 0x06 | PLen 0x04 | OpCode 00 01 | |
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82 | ; | ( 0001 for request, 0002 for reply ) | |
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83 | ; +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
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84 | ; | Source Hardware Address ( MAC Address ) | |
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85 | ; +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
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86 | ; | | Source IP Address | |
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87 | ; +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
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88 | ; | | Destination Hardware Address | |
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89 | ; +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
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90 | ; | | |
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91 | ; +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
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92 | ; | Destination IP Address | |
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93 | ; +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
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94 | |||
95 | ; Include individual drivers source files at this point. |
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96 | ; If you create a new driver, include it below. |
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97 | |||
98 | include "drivers/rtl8029.inc" |
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99 | include "drivers/i8255x.inc" |
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100 | include "drivers/rtl8139.inc" |
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101 | include "drivers/3c59x.inc" |
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102 | include "drivers/sis900.inc" |
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103 | include "drivers/pcnet32.inc" |
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104 | include "drivers/rtl8169.inc" |
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105 | include "drivers/forcedeth.inc" |
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106 | include "drivers/r6040.inc" |
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107 | |||
108 | ; PCICards |
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109 | ; ======== |
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110 | ; PCI vendor and hardware types for hardware supported by the above drivers |
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111 | ; If you add a driver, ensure you update this datastructure, otherwise the |
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112 | ; card will not be probed. |
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113 | ; Each driver is defined by 4 double words. These are |
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114 | ; PCIVendorDevice probeFunction ResetFunction PollFunction transmitFunction |
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115 | ; The last entry must be kept at all zeros, to indicate the end of the list |
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116 | ; As a PCI driver may support more than one hardware implementation, there may |
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117 | ; be several lines which refer to the same functions. |
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118 | ; The first driver found on the PCI bus will be the one used. |
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119 | |||
120 | PCICARDS_ENTRY_SIZE equ 24 ; Size of each PCICARDS entry |
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121 | |||
122 | iglobal |
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123 | PCICards: |
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124 | dd 0x12098086, I8255x_probe, I8255x_reset, I8255x_poll, I8255x_transmit, 0 |
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125 | dd 0x10298086, I8255x_probe, I8255x_reset, I8255x_poll, I8255x_transmit, 0 |
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126 | dd 0x12298086, I8255x_probe, I8255x_reset, I8255x_poll, I8255x_transmit, 0 |
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127 | dd 0x10308086, I8255x_probe, I8255x_reset, I8255x_poll, I8255x_transmit, 0 |
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128 | dd 0x24498086, I8255x_probe, I8255x_reset, I8255x_poll, I8255x_transmit, 0 |
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129 | |||
130 | dd 0x802910ec, rtl8029_probe, rtl8029_reset, rtl8029_poll, rtl8029_transmit, 0 |
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131 | |||
132 | ;dd 0x813910ec, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable |
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133 | ;dd 0x813810ec, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable |
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134 | ;dd 0x12111113, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable |
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135 | ;dd 0x13601500, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable |
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136 | ;dd 0x13604033, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable |
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137 | ;dd 0x13001186, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable |
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138 | ;dd 0x13401186, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable |
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139 | ;dd 0xab0613d1, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable |
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140 | ;dd 0xa1171259, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable |
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141 | ;dd 0xa11e1259, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable |
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142 | ;dd 0xab0614ea, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable |
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143 | ;dd 0xab0714ea, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable |
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144 | ;dd 0x123411db, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable |
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145 | ;dd 0x91301432, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable |
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146 | ;dd 0x101202ac, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable |
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147 | ;dd 0x0106018a, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable |
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148 | ;dd 0x1211126c, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable |
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149 | ;dd 0x81391743, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable |
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150 | ;dd 0x8139021b, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable |
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151 | |||
152 | dd 0x816810ec, rtl8169_probe, rtl8169_reset, rtl8169_poll, rtl8169_transmit, 0 |
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153 | dd 0x816910ec, rtl8169_probe, rtl8169_reset, rtl8169_poll, rtl8169_transmit, 0 |
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154 | dd 0x011616ec, rtl8169_probe, rtl8169_reset, rtl8169_poll, rtl8169_transmit, 0 |
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155 | dd 0x43001186, rtl8169_probe, rtl8169_reset, rtl8169_poll, rtl8169_transmit, 0 |
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156 | dd 0x816710ec, rtl8169_probe, rtl8169_reset, rtl8169_poll, rtl8169_transmit, 0 |
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157 | |||
158 | dd 0x590010b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0 |
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159 | dd 0x592010b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0 |
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160 | dd 0x597010b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0 |
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161 | dd 0x595010b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0 |
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162 | dd 0x595110b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0 |
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163 | dd 0x595210b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0 |
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164 | dd 0x900010b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0 |
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165 | dd 0x900110b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0 |
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166 | dd 0x900410b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0 |
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167 | dd 0x900510b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0 |
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168 | dd 0x900610b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0 |
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169 | dd 0x900A10b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0 |
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170 | dd 0x905010b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0 |
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171 | dd 0x905110b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0 |
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172 | dd 0x905510b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0 |
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173 | dd 0x905810b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0 |
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174 | dd 0x905A10b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0 |
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175 | dd 0x920010b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0 |
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176 | dd 0x980010b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0 |
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177 | dd 0x980510b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0 |
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178 | dd 0x764610b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0 |
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179 | dd 0x505510b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0 |
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180 | dd 0x605510b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0 |
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181 | dd 0x605610b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0 |
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182 | dd 0x5b5710b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0 |
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183 | dd 0x505710b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0 |
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184 | dd 0x515710b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0 |
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185 | dd 0x525710b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0 |
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186 | dd 0x656010b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0 |
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187 | dd 0x656210b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0 |
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188 | dd 0x656410b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0 |
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189 | dd 0x450010b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0 |
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190 | |||
191 | dd 0x09001039, SIS900_probe, SIS900_reset, SIS900_poll, SIS900_transmit, 0 |
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192 | dd 0x70161039, SIS900_probe, SIS900_reset, SIS900_poll, SIS900_transmit, 0 |
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193 | |||
194 | dd 0x20001022, pcnet32_probe, pcnet32_reset, pcnet32_poll, pcnet32_xmit, 0 |
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195 | dd 0x26251022, pcnet32_probe, pcnet32_reset, pcnet32_poll, pcnet32_xmit, 0 |
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196 | dd 0x20011022, pcnet32_probe, pcnet32_reset, pcnet32_poll, pcnet32_xmit, 0 |
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197 | |||
198 | dd 0x006610de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; nVidia Corporation nForce2 Ethernet Controller |
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199 | dd 0x01c310de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested |
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200 | dd 0x00D610de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested |
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201 | dd 0x008610de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested |
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202 | dd 0x008c10de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested |
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203 | dd 0x00e610de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested |
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204 | dd 0x00df10de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested |
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205 | dd 0x005610de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested |
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206 | dd 0x005710de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested |
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207 | dd 0x003710de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested |
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208 | dd 0x003810de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested |
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209 | dd 0x026810de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested |
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210 | dd 0x026910de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested |
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211 | dd 0x037210de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested |
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212 | dd 0x037310de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested |
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213 | dd 0x03e510de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested |
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214 | dd 0x03e610de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested |
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215 | dd 0x03ee10de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested |
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216 | dd 0x03ef10de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested |
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217 | dd 0x045010de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested |
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218 | dd 0x045110de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested |
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219 | dd 0x045210de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested |
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220 | dd 0x045310de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested |
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221 | dd 0x054c10de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested |
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222 | dd 0x054d10de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested |
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223 | dd 0x054e10de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested |
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224 | dd 0x054f10de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested |
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225 | dd 0x07dc10de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested |
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226 | dd 0x07dd10de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested |
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227 | dd 0x07de10de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested |
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228 | dd 0x07df10de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested |
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229 | dd 0x076010de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; MCP77 Ethernet Controller |
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230 | dd 0x076110de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested |
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231 | dd 0x076210de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested |
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232 | dd 0x076310de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested |
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233 | dd 0x0ab010de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested |
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234 | dd 0x0ab110de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested |
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235 | dd 0x0ab210de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested |
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236 | dd 0x0ab310de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested |
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237 | dd 0x0d7d10de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested |
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238 | |||
239 | dd 0x604017F3, r6040_probe, r6040_reset, r6040_poll, r6040_transmit, 0 |
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240 | |||
241 | rb PCICARDS_ENTRY_SIZE ; end of list marker, do not remove |
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242 | endg |
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243 | |||
244 | uglobal |
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245 | ;Net-stack's interface's settings |
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246 | node_addr: |
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247 | db 0,0,0,0,0,0 |
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248 | gateway_ip: |
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249 | dd 0 |
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250 | dns_ip: |
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251 | dd 0 |
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252 | |||
253 | eth_rx_data_len: |
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254 | dw 0 |
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255 | eth_status: |
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256 | dd 0 |
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257 | io_addr: |
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258 | dd 0 |
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259 | hdrtype: |
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260 | db 0 |
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261 | vendor_device: |
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262 | dd 0 |
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263 | pci_data: |
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264 | dd 0 |
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265 | pci_dev: |
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266 | dd 0 |
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267 | pci_bus: |
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268 | dd 0 |
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269 | |||
270 | ; These will hold pointers to the selected driver functions |
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271 | drvr_probe: |
||
272 | dd 0 |
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273 | drvr_reset: |
||
274 | dd 0 |
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275 | drvr_poll: |
||
276 | dd 0 |
||
277 | drvr_transmit: |
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278 | dd 0 |
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279 | drvr_cable: |
||
280 | dd 0 |
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281 | |||
282 | endg |
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283 | |||
284 | iglobal |
||
285 | broadcast_add: |
||
286 | db 0xff,0xff,0xff,0xff,0xff,0xff |
||
287 | subnet_mask: |
||
288 | dd 0x00ffffff ; 255.255.255.0 |
||
289 | endg |
||
290 | |||
291 | include "arp.inc" ;arp-protocol functions |
||
292 | include "pci.inc" ;PCI bus access functions |
||
293 | |||
294 | |||
295 | ;*************************************************************************** |
||
296 | ; Function |
||
297 | ; eth_tx |
||
298 | ; |
||
299 | ; Description |
||
300 | ; Looks at the NET1OUT_QUEUE for data to send. |
||
301 | ; Stores that destination IP in a location used by the tx routine |
||
302 | ; Looks up the MAC address in the ARP table; stores that where |
||
303 | ; the tx routine can get it |
||
304 | ; Get the length of the data. Store that where the tx routine wants it |
||
305 | ; Call tx |
||
306 | ; Places buffer on empty queue when the tx routine finished |
||
307 | ; |
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308 | ;*************************************************************************** |
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309 | proc eth_tx stdcall uses ebx esi edi |
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310 | local MACAddress dp ? ;allocate 6 bytes in the stack |
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311 | |||
312 | ; Look for a buffer to tx |
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313 | mov eax, NET1OUT_QUEUE |
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314 | call dequeue |
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315 | cmp ax, NO_BUFFER |
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316 | je .exit ; Exit if no buffer available |
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317 | |||
318 | push eax;save buffer number |
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319 | |||
320 | ; convert buffer pointer eax to the absolute address |
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321 | imul eax, IPBUFFSIZE |
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322 | add eax, IPbuffs |
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323 | |||
324 | ; Extract the destination IP |
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325 | ; find the destination IP in the ARP table, get MAC |
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326 | ; store this MAC in 'MACAddress' |
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327 | mov ebx, eax ; Save buffer address |
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328 | mov edx, [ebx + 16] ; get destination address |
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329 | |||
330 | ; If the destination address is 255.255.255.255, |
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331 | ; set the MACAddress to all ones ( broadcast ) |
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332 | cld |
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333 | mov esi, broadcast_add |
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334 | lea edi, [MACAddress] |
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335 | movsd |
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336 | movsw |
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337 | cmp edx, 0xffffffff |
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338 | je .send ; If it is broadcast, just send |
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339 | |||
340 | lea eax, [MACAddress];cause this is local variable |
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341 | stdcall arp_table_manager, ARP_TABLE_IP_TO_MAC, edx, eax;opcode,IP,MAC_ptr - Get the MAC address. |
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342 | |||
343 | cmp eax, ARP_VALID_MAPPING |
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344 | je .send |
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345 | |||
346 | ; No valid entry. Has the request been sent, but timed out? |
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347 | cmp eax, ARP_RESPONSE_TIMEOUT |
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348 | je .freebuf |
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349 | |||
350 | .wait_response: ;we wait arp-response |
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351 | ; Re-queue the packet, and exit |
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352 | pop ebx |
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353 | mov eax, NET1OUT_QUEUE |
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354 | call queue ; Get the buffer back |
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355 | jmp .exit |
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356 | |||
357 | .send: ;if ARP_VALID_MAPPING then send the packet |
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358 | lea edi, [MACAddress] ; Pointer to 48 bit destination address |
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359 | movzx ecx, word[ebx+2] ; Size of IP packet to send |
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360 | xchg ch, cl ; because mirror byte-order |
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361 | mov esi, ebx ; Pointer to packet data |
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362 | mov bx, ETHER_IP ; Type of packet |
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363 | push ebp |
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364 | call dword [drvr_transmit]; Call the drivers transmit function |
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365 | pop ebp |
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366 | |||
367 | ; OK, we have sent a packet, so increment the count |
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368 | inc dword [ip_tx_count] |
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369 | |||
370 | ; And finally, return the buffer to the free queue |
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371 | .freebuf: |
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372 | pop eax |
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373 | call freeBuff |
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374 | |||
375 | .exit: |
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376 | ret |
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377 | endp |
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378 | |||
379 | ;*************************************************************************** |
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380 | ; Function |
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381 | ; ether_IP_handler |
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382 | ; |
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383 | ; Description |
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384 | ; Called when an IP ethernet packet is received on the ethernet |
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385 | ; Header + Data is in Ether_buffer[] |
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386 | ; We just need to get a buffer from the 'free' queue, and |
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387 | ; store the packet in it, then insert the packet number into the |
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388 | ; IPRX queue. |
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389 | ; If no queue entry is available, the packet is silently discarded |
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390 | ; All registers may be destroyed |
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391 | ; |
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392 | ;*************************************************************************** |
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393 | ;uglobal |
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394 | ; ether_IP_handler_cnt dd ? |
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395 | ;endg |
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396 | ether_IP_handler: |
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397 | mov eax, EMPTY_QUEUE |
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398 | call dequeue |
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399 | cmp ax, NO_BUFFER |
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400 | je eiph00x |
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401 | |||
402 | ; convert buffer pointer eax to the absolute address |
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403 | push eax |
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404 | mov ecx, IPBUFFSIZE |
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405 | mul ecx |
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406 | add eax, IPbuffs |
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407 | |||
408 | mov edi, eax |
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409 | |||
410 | ; get a pointer to the start of the DATA |
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411 | mov esi, ETH_FRAME.Data |
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412 | |||
413 | ; Now store it all away |
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414 | mov ecx, IPBUFFSIZE / 4 ; Copy all of the available |
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415 | ; data across - worse case |
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416 | cld |
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417 | rep movsd |
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418 | |||
419 | ; inc [ether_IP_handler_cnt] |
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420 | ; DEBUGF 1, "K : ether_IP_handler (%u)\n", [ether_IP_handler_cnt] |
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421 | |||
422 | ; And finally, place the buffer in the IPRX queue |
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423 | pop ebx |
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424 | mov eax, IPIN_QUEUE |
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425 | call queue |
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426 | |||
427 | eiph00x: |
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428 | ret |
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429 | |||
430 | ;*************************************************************************** |
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431 | ; Function |
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432 | ; eth_probe |
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433 | ; Description |
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434 | ; Searches for an ethernet card. If found, the card is enabled and |
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435 | ; the ethernet -> IP link established |
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436 | ; |
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437 | ; This function scans the PCI bus looking for a supported device. |
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438 | ; ISA bus is currently not supported. |
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439 | ; |
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440 | ; eax is 0 if no hardware found |
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441 | ;*************************************************************************** |
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442 | eth_probe: |
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443 | ; Find a card on the PCI bus, and get it's address |
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444 | call scan_bus ; Find the ethernet cards PIC address |
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445 | xor eax, eax |
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446 | cmp [io_addr], eax |
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447 | je ep_00x ; Return 0 in eax if no cards found |
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448 | |||
449 | call dword [drvr_probe] ; Call the drivers probe function |
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450 | |||
451 | mov eax, [io_addr] ; return a non zero value |
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452 | |||
453 | ep_00x: |
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454 | ret |
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455 | |||
456 | ;*************************************************************************** |
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457 | ; Function |
||
458 | ; ethernet_driver |
||
459 | ; |
||
460 | ; Description |
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461 | ; The ethernet RX and TX handler |
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462 | ; This is a kernel function, called by stack_handler |
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463 | ; |
||
464 | ;*************************************************************************** |
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465 | ethernet_driver: |
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466 | ; Do nothing if the driver is inactive |
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467 | cmp [ethernet_active], byte 0 |
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468 | je eth_exit |
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469 | |||
470 | call eth_rx |
||
471 | call eth_tx |
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472 | |||
473 | eth_exit: |
||
474 | ret |
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475 | |||
476 | ;*************************************************************************** |
||
477 | ; Function |
||
478 | ; eth_rx |
||
479 | ; |
||
480 | ; Description |
||
481 | ; Polls the ethernet card for received data. Extracts if present |
||
482 | ; Depending on the Protocol within the packet: |
||
483 | ; ARP : Pass to ARP_handler. This may result in an ARP reply |
||
484 | ; being tx'ed |
||
485 | ; IP : Store in an IP buffer |
||
486 | ; |
||
487 | ;*************************************************************************** |
||
488 | eth_rx: |
||
489 | xor ax, ax |
||
490 | mov [eth_rx_data_len], ax |
||
491 | call dword [drvr_poll] ; Call the drivers poll function |
||
492 | |||
493 | mov ax, [eth_rx_data_len] |
||
494 | cmp ax, 0 |
||
495 | je .exit |
||
496 | |||
497 | |||
498 | ; Check the protocol. Call appropriate handler |
||
499 | |||
500 | mov ax, [ETH_FRAME.Type]; The address of the protocol word |
||
501 | |||
502 | cmp ax, ETHER_IP |
||
503 | je .is_ip ; It's IP |
||
504 | |||
505 | cmp ax, ETHER_ARP |
||
506 | je .is_arp ; It is ARP |
||
507 | |||
508 | DEBUGF 1,"K : eth_rx - dumped (%u)\n", ax |
||
509 | inc [dumped_rx_count] |
||
510 | jmp .exit ; If not IP or ARP, ignore |
||
511 | |||
512 | .is_ip: |
||
513 | ; DEBUGF 1,"K : eth_rx - IP packet\n" |
||
514 | inc dword [ip_rx_count] |
||
515 | call ether_IP_handler |
||
516 | jmp .exit |
||
517 | |||
518 | .is_arp: |
||
519 | ; DEBUGF 1,"K : eth_rx - ARP packet\n" |
||
520 | ; At this point, the packet is still in the Ether_buffer |
||
521 | call arp_handler |
||
522 | |||
523 | .exit: |
||
524 | ret |