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Rev | Author | Line No. | Line |
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1 | ha | 1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ;; ;; |
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431 | serge | 3 | ;; Copyright (C) KolibriOS team 2004-2007. All rights reserved. ;; |
4 | ;; Distributed under terms of the GNU General Public License ;; |
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5 | ;; ;; |
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1 | ha | 6 | ;; ETHERNET.INC ;; |
7 | ;; ;; |
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8 | ;; Ethernet network layer for Menuet OS ;; |
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9 | ;; ;; |
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10 | ;; Version 0.4 22 September 2003 ;; |
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11 | ;; ;; |
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12 | ;; This file contains the following: ;; |
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13 | ;; PCI bus scanning for valid devices ;; |
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14 | ;; Table of supported ethernet drivers ;; |
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15 | ;; Code to identify and activate a supported driver ;; |
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16 | ;; ARP handler ;; |
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17 | ;; Driver interface to the IP layer ;; |
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18 | ;; Gateway support ;; |
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19 | ;; ;; |
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20 | ;; Individual driver files are included here ;; |
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21 | ;; ;; |
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22 | ;; The PCI bus scanning code was ported from the etherboot ;; |
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23 | ;; 5.0.6 project. The copyright statement for that code is ;; |
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24 | ;; ;; |
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25 | ;; GNU GENERAL PUBLIC LICENSE ;; |
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26 | ;; Version 2, June 1991 ;; |
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27 | ;; ;; |
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28 | ;; remaining parts Copyright 2002 Mike Hibbett ;; |
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29 | ;; mikeh@oceanfree.net ;; |
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30 | ;; ;; |
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31 | ;; See file COPYING for details ;; |
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32 | ;; ;; |
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33 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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34 | |||
593 | mikedld | 35 | $Revision: 867 $ |
36 | |||
37 | |||
1 | ha | 38 | ;******************************************************************** |
39 | ; Interface |
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40 | ; ethernet_driver called by stack_handler in stack.inc |
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41 | ; eth_probe called by app_stack_handler in stack.inc |
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42 | ; |
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43 | ;******************************************************************** |
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44 | |||
302 | hidnplayr | 45 | ETHER_IP equ 0x0008 ; Reversed from 0800 for intel |
46 | ETHER_ARP equ 0x0608 ; Reversed from 0806 for intel |
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47 | ETHER_RARP equ 0x3580 |
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261 | hidnplayr | 48 | |
49 | struc ETH_FRAME |
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302 | hidnplayr | 50 | { .DstMAC dp ? ;destination MAC-address [6 bytes] |
51 | .SrcMAC dp ? ;source MAC-address [6 bytes] |
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52 | .Type dw ? ;type of the upper-layer protocol [2 bytes] |
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53 | .Data db ? ;data [46-1500 bytes] |
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261 | hidnplayr | 54 | } |
55 | |||
56 | virtual at Ether_buffer |
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57 | ETH_FRAME ETH_FRAME |
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58 | end virtual |
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59 | |||
60 | |||
1 | ha | 61 | ; Some useful information on data structures |
62 | |||
63 | ; Ethernet Packet - ARP Request example |
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64 | ; |
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65 | ; 0 1 2 3 |
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66 | ; 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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67 | ; |
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68 | ; +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
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69 | ; | Dest H/W Address | |
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70 | ; | ( 14 byte header ) | |
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71 | ; +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
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72 | ; | | Source H/W Address | |
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73 | ; +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
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74 | ; | | |
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75 | ; +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
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76 | ; | Protocol - ARP 08 06 | |
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77 | ; +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
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78 | |||
79 | ; +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
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80 | ; | H/W Type 00 01 | Protocol Type 08 00 | |
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81 | ; | ( ARP Request packet ) | |
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82 | ; +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
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83 | ; | HLen 0x06 | PLen 0x04 | OpCode 00 01 | |
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84 | ; | ( 0001 for request, 0002 for reply ) | |
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85 | ; +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
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86 | ; | Source Hardware Address ( MAC Address ) | |
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87 | ; +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
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88 | ; | | Source IP Address | |
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89 | ; +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
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90 | ; | | Destination Hardware Address | |
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91 | ; +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
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92 | ; | | |
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93 | ; +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
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94 | ; | Destination IP Address | |
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95 | ; +-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+-+ |
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96 | |||
97 | ; Include individual drivers source files at this point. |
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98 | ; If you create a new driver, include it below. |
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99 | |||
261 | hidnplayr | 100 | include "drivers/rtl8029.inc" |
101 | include "drivers/i8255x.inc" |
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102 | include "drivers/rtl8139.inc" |
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103 | include "drivers/3c59x.inc" |
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104 | include "drivers/sis900.inc" |
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105 | include "drivers/pcnet32.inc" |
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373 | mikedld | 106 | include "drivers/rtl8169.inc" |
866 | shurf | 107 | include "drivers/forcedeth.inc" |
1 | ha | 108 | |
109 | ; PCICards |
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110 | ; ======== |
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111 | ; PCI vendor and hardware types for hardware supported by the above drivers |
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112 | ; If you add a driver, ensure you update this datastructure, otherwise the |
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113 | ; card will not be probed. |
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114 | ; Each driver is defined by 4 double words. These are |
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115 | ; PCIVendorDevice probeFunction ResetFunction PollFunction transmitFunction |
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116 | ; The last entry must be kept at all zeros, to indicate the end of the list |
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117 | ; As a PCI driver may support more than one hardware implementation, there may |
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118 | ; be several lines which refer to the same functions. |
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119 | ; The first driver found on the PCI bus will be the one used. |
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120 | |||
302 | hidnplayr | 121 | PCICARDS_ENTRY_SIZE equ 24 ; Size of each PCICARDS entry |
1 | ha | 122 | |
123 | iglobal |
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124 | PCICards: |
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302 | hidnplayr | 125 | dd 0x12098086, I8255x_probe, I8255x_reset, I8255x_poll, I8255x_transmit, 0 |
126 | dd 0x10298086, I8255x_probe, I8255x_reset, I8255x_poll, I8255x_transmit, 0 |
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127 | dd 0x12298086, I8255x_probe, I8255x_reset, I8255x_poll, I8255x_transmit, 0 |
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128 | dd 0x10308086, I8255x_probe, I8255x_reset, I8255x_poll, I8255x_transmit, 0 |
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129 | dd 0x24498086, I8255x_probe, I8255x_reset, I8255x_poll, I8255x_transmit, 0 |
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505 | hidnplayr | 130 | |
302 | hidnplayr | 131 | dd 0x802910ec, rtl8029_probe, rtl8029_reset, rtl8029_poll, rtl8029_transmit, 0 |
132 | |||
505 | hidnplayr | 133 | dd 0x813910ec, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable ; tested by hidnplayr: works ok |
302 | hidnplayr | 134 | dd 0x813810ec, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable |
505 | hidnplayr | 135 | dd 0x12111113, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable ; tested by hidnplayr: works ok |
302 | hidnplayr | 136 | dd 0x13601500, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable |
137 | dd 0x13604033, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable |
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138 | dd 0x13001186, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable |
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139 | dd 0x13401186, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable |
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140 | dd 0xab0613d1, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable |
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141 | dd 0xa1171259, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable |
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142 | dd 0xa11e1259, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable |
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143 | dd 0xab0614ea, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable |
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144 | dd 0xab0714ea, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable |
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145 | dd 0x123411db, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable |
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146 | dd 0x91301432, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable |
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147 | dd 0x101202ac, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable |
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148 | dd 0x0106018a, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable |
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149 | dd 0x1211126c, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable |
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150 | dd 0x81391743, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable |
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151 | dd 0x8139021b, rtl8139_probe, rtl8139_reset, rtl8139_poll, rtl8139_transmit, rtl8139_cable |
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152 | |||
373 | mikedld | 153 | dd 0x816810ec, rtl8169_probe, rtl8169_reset, rtl8169_poll, rtl8169_transmit, 0 |
154 | dd 0x816910ec, rtl8169_probe, rtl8169_reset, rtl8169_poll, rtl8169_transmit, 0 |
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155 | dd 0x011616ec, rtl8169_probe, rtl8169_reset, rtl8169_poll, rtl8169_transmit, 0 |
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156 | dd 0x43001186, rtl8169_probe, rtl8169_reset, rtl8169_poll, rtl8169_transmit, 0 |
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157 | |||
302 | hidnplayr | 158 | dd 0x590010b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0 |
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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523 | diamond | 166 | dd 0x900410b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0 |
302 | hidnplayr | 167 | dd 0x900510b7, e3c59x_probe, e3c59x_reset, e3c59x_poll, e3c59x_transmit, 0 |
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 | |||
193 | dd 0x20001022, pcnet32_probe, pcnet32_reset, pcnet32_poll, pcnet32_xmit, 0 |
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194 | dd 0x26251022, pcnet32_probe, pcnet32_reset, pcnet32_poll, pcnet32_xmit, 0 |
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195 | dd 0x20011022, pcnet32_probe, pcnet32_reset, pcnet32_poll, pcnet32_xmit, 0 |
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323 | hidnplayr | 196 | |
197 | ;dd 0x08031516, mtd80x_probe, mtd80x_reset, mtd80x_poll, mtd80x_transmit, mtd80x_cable |
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198 | |||
199 | ; following cards are untested |
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302 | hidnplayr | 200 | dd 0x70161039, SIS900_probe, SIS900_reset, SIS900_poll, SIS900_transmit, 0 |
323 | hidnplayr | 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 |
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203 | |||
867 | shurf | 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 |
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206 | dd 0x00D610de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested |
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207 | dd 0x008610de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested |
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208 | dd 0x008c10de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested |
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209 | dd 0x00e610de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested |
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210 | dd 0x00df10de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested |
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211 | dd 0x005610de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested |
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212 | dd 0x005710de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested |
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213 | dd 0x003710de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested |
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214 | dd 0x003810de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested |
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215 | dd 0x026810de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested |
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216 | dd 0x026910de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested |
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217 | dd 0x037210de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested |
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218 | dd 0x037310de, forcedeth_probe, forcedeth_reset, forcedeth_poll, forcedeth_transmit, forcedeth_cable ; not tested |
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866 | shurf | 219 | |
867 | shurf | 220 | |
302 | hidnplayr | 221 | rb PCICARDS_ENTRY_SIZE ; end of list marker, do not remove |
1 | ha | 222 | endg |
223 | |||
224 | uglobal |
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261 | hidnplayr | 225 | ;Net-stack's interface's settings |
302 | hidnplayr | 226 | node_addr: db 0,0,0,0,0,0 |
227 | gateway_ip: dd 0 |
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228 | dns_ip: dd 0 |
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261 | hidnplayr | 229 | |
1 | ha | 230 | eth_rx_data_len: dw 0 |
302 | hidnplayr | 231 | eth_status: dd 0 |
232 | io_addr: dd 0 |
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233 | hdrtype: db 0 |
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1 | ha | 234 | vendor_device: dd 0 |
302 | hidnplayr | 235 | pci_data: dd 0 |
236 | pci_dev: dd 0 |
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237 | pci_bus: dd 0 |
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1 | ha | 238 | |
239 | ; These will hold pointers to the selected driver functions |
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302 | hidnplayr | 240 | drvr_probe: dd 0 |
241 | drvr_reset: dd 0 |
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242 | drvr_poll: dd 0 |
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1 | ha | 243 | drvr_transmit: dd 0 |
302 | hidnplayr | 244 | drvr_cable: dd 0 |
1 | ha | 245 | |
246 | endg |
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247 | |||
248 | iglobal |
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249 | broadcast_add: db 0xff,0xff,0xff,0xff,0xff,0xff |
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302 | hidnplayr | 250 | subnet_mask: dd 0x00ffffff ; 255.255.255.0 |
1 | ha | 251 | endg |
252 | |||
261 | hidnplayr | 253 | include "arp.inc" ;arp-protocol functions |
254 | include "pci.inc" ;PCI bus access functions |
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1 | ha | 255 | |
256 | |||
257 | ;*************************************************************************** |
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258 | ; Function |
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259 | ; eth_tx |
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260 | ; |
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261 | ; Description |
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262 | ; Looks at the NET1OUT_QUEUE for data to send. |
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263 | ; Stores that destination IP in a location used by the tx routine |
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264 | ; Looks up the MAC address in the ARP table; stores that where |
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265 | ; the tx routine can get it |
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266 | ; Get the length of the data. Store that where the tx routine wants it |
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267 | ; Call tx |
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268 | ; Places buffer on empty queue when the tx routine finished |
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269 | ; |
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270 | ;*************************************************************************** |
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261 | hidnplayr | 271 | proc eth_tx stdcall uses ebx esi edi |
272 | local MACAddress dp ? ;allocate 6 bytes in the stack |
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273 | |||
1 | ha | 274 | ; Look for a buffer to tx |
275 | mov eax, NET1OUT_QUEUE |
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276 | call dequeue |
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277 | cmp ax, NO_BUFFER |
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302 | hidnplayr | 278 | je .exit ; Exit if no buffer available |
1 | ha | 279 | |
261 | hidnplayr | 280 | push eax ;save buffer number |
1 | ha | 281 | |
282 | ; convert buffer pointer eax to the absolute address |
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261 | hidnplayr | 283 | imul eax, IPBUFFSIZE |
1 | ha | 284 | add eax, IPbuffs |
285 | |||
286 | ; Extract the destination IP |
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287 | ; find the destination IP in the ARP table, get MAC |
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288 | ; store this MAC in 'MACAddress' |
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302 | hidnplayr | 289 | mov ebx, eax ; Save buffer address |
290 | mov edx, [ebx + 16] ; get destination address |
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1 | ha | 291 | |
292 | ; If the destination address is 255.255.255.255, |
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293 | ; set the MACAddress to all ones ( broadcast ) |
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261 | hidnplayr | 294 | cld |
295 | mov esi, broadcast_add |
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296 | lea edi, [MACAddress] |
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297 | movsd |
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298 | movsw |
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1 | ha | 299 | cmp edx, 0xffffffff |
302 | hidnplayr | 300 | je .send ; If it is broadcast, just send |
1 | ha | 301 | |
302 | hidnplayr | 302 | lea eax, [MACAddress] ;cause this is local variable |
261 | hidnplayr | 303 | stdcall arp_table_manager, ARP_TABLE_IP_TO_MAC, edx, eax ;opcode,IP,MAC_ptr - Get the MAC address. |
1 | ha | 304 | |
305 | cmp eax, ARP_VALID_MAPPING |
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302 | hidnplayr | 306 | je .send |
1 | ha | 307 | |
261 | hidnplayr | 308 | ; No valid entry. Has the request been sent, but timed out? |
1 | ha | 309 | cmp eax, ARP_RESPONSE_TIMEOUT |
302 | hidnplayr | 310 | je .freebuf |
1 | ha | 311 | |
302 | hidnplayr | 312 | .wait_response: ;we wait arp-response |
313 | ; Re-queue the packet, and exit |
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1 | ha | 314 | pop ebx |
315 | mov eax, NET1OUT_QUEUE |
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302 | hidnplayr | 316 | call queue ; Get the buffer back |
261 | hidnplayr | 317 | jmp .exit |
1 | ha | 318 | |
261 | hidnplayr | 319 | .send: ;if ARP_VALID_MAPPING then send the packet |
302 | hidnplayr | 320 | lea edi, [MACAddress] ; Pointer to 48 bit destination address |
321 | movzx ecx, word[ebx+2] ; Size of IP packet to send |
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322 | xchg ch, cl ; because mirror byte-order |
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323 | mov esi, ebx ; Pointer to packet data |
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324 | mov bx, ETHER_IP ; Type of packet |
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523 | diamond | 325 | push ebp |
261 | hidnplayr | 326 | call dword [drvr_transmit] ; Call the drivers transmit function |
523 | diamond | 327 | pop ebp |
1 | ha | 328 | |
329 | ; OK, we have sent a packet, so increment the count |
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330 | inc dword [ip_tx_count] |
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331 | |||
332 | ; And finally, return the buffer to the free queue |
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261 | hidnplayr | 333 | .freebuf: |
1 | ha | 334 | pop eax |
335 | call freeBuff |
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336 | |||
261 | hidnplayr | 337 | .exit: |
1 | ha | 338 | ret |
261 | hidnplayr | 339 | endp |
1 | ha | 340 | |
341 | ;*************************************************************************** |
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342 | ; Function |
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343 | ; ether_IP_handler |
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344 | ; |
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345 | ; Description |
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346 | ; Called when an IP ethernet packet is received on the ethernet |
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347 | ; Header + Data is in Ether_buffer[] |
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348 | ; We just need to get a buffer from the 'free' queue, and |
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349 | ; store the packet in it, then insert the packet number into the |
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350 | ; IPRX queue. |
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351 | ; If no queue entry is available, the packet is silently discarded |
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352 | ; All registers may be destroyed |
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353 | ; |
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354 | ;*************************************************************************** |
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355 | ether_IP_handler: |
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356 | mov eax, EMPTY_QUEUE |
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357 | call dequeue |
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358 | cmp ax, NO_BUFFER |
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302 | hidnplayr | 359 | je eiph00x |
1 | ha | 360 | |
361 | ; convert buffer pointer eax to the absolute address |
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362 | push eax |
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363 | mov ecx, IPBUFFSIZE |
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364 | mul ecx |
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365 | add eax, IPbuffs |
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366 | |||
367 | mov edi, eax |
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368 | |||
369 | ; get a pointer to the start of the DATA |
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261 | hidnplayr | 370 | mov esi, ETH_FRAME.Data |
1 | ha | 371 | |
372 | ; Now store it all away |
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373 | mov ecx, IPBUFFSIZE / 4 ; Copy all of the available |
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302 | hidnplayr | 374 | ; data across - worse case |
1 | ha | 375 | cld |
376 | rep movsd |
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377 | |||
378 | ; And finally, place the buffer in the IPRX queue |
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379 | pop ebx |
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380 | mov eax, IPIN_QUEUE |
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381 | call queue |
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382 | |||
383 | eiph00x: |
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384 | ret |
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385 | |||
386 | ;*************************************************************************** |
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387 | ; Function |
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261 | hidnplayr | 388 | ; eth_probe |
1 | ha | 389 | ; Description |
261 | hidnplayr | 390 | ; Searches for an ethernet card. If found, the card is enabled and |
391 | ; the ethernet -> IP link established |
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1 | ha | 392 | ; |
261 | hidnplayr | 393 | ; This function scans the PCI bus looking for a supported device. |
394 | ; ISA bus is currently not supported. |
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1 | ha | 395 | ; |
261 | hidnplayr | 396 | ; eax is 0 if no hardware found |
1 | ha | 397 | ;*************************************************************************** |
261 | hidnplayr | 398 | eth_probe: |
399 | ; Find a card on the PCI bus, and get it's address |
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302 | hidnplayr | 400 | call scan_bus ; Find the ethernet cards PIC address |
1 | ha | 401 | xor eax, eax |
261 | hidnplayr | 402 | cmp [io_addr], eax |
302 | hidnplayr | 403 | je ep_00x ; Return 0 in eax if no cards found |
1 | ha | 404 | |
302 | hidnplayr | 405 | call dword [drvr_probe] ; Call the drivers probe function |
1 | ha | 406 | |
302 | hidnplayr | 407 | mov eax, [io_addr] ; return a non zero value |
1 | ha | 408 | |
261 | hidnplayr | 409 | ep_00x: |
1 | ha | 410 | ret |
411 | |||
412 | ;*************************************************************************** |
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413 | ; Function |
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261 | hidnplayr | 414 | ; ethernet_driver |
1 | ha | 415 | ; |
416 | ; Description |
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261 | hidnplayr | 417 | ; The ethernet RX and TX handler |
418 | ; This is a kernel function, called by stack_handler |
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1 | ha | 419 | ; |
420 | ;*************************************************************************** |
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261 | hidnplayr | 421 | ethernet_driver: |
422 | ; Do nothing if the driver is inactive |
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423 | cmp [ethernet_active], byte 0 |
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302 | hidnplayr | 424 | je eth_exit |
1 | ha | 425 | |
261 | hidnplayr | 426 | call eth_rx |
427 | call eth_tx |
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1 | ha | 428 | |
261 | hidnplayr | 429 | eth_exit: |
1 | ha | 430 | ret |
431 | |||
432 | ;*************************************************************************** |
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433 | ; Function |
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261 | hidnplayr | 434 | ; eth_rx |
1 | ha | 435 | ; |
436 | ; Description |
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261 | hidnplayr | 437 | ; Polls the ethernet card for received data. Extracts if present |
438 | ; Depending on the Protocol within the packet: |
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439 | ; ARP : Pass to ARP_handler. This may result in an ARP reply |
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440 | ; being tx'ed |
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441 | ; IP : Store in an IP buffer |
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1 | ha | 442 | ; |
443 | ;*************************************************************************** |
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261 | hidnplayr | 444 | eth_rx: |
445 | xor ax, ax |
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446 | mov [eth_rx_data_len], ax |
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302 | hidnplayr | 447 | call dword [drvr_poll] ; Call the drivers poll function |
1 | ha | 448 | |
261 | hidnplayr | 449 | mov ax, [eth_rx_data_len] |
450 | cmp ax, 0 |
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302 | hidnplayr | 451 | je .exit |
1 | ha | 452 | |
453 | |||
261 | hidnplayr | 454 | ; Check the protocol. Call appropriate handler |
1 | ha | 455 | |
261 | hidnplayr | 456 | mov ax, [ETH_FRAME.Type] ; The address of the protocol word |
1 | ha | 457 | |
261 | hidnplayr | 458 | cmp ax, ETHER_IP |
302 | hidnplayr | 459 | je .is_ip ; It's IP |
1 | ha | 460 | |
261 | hidnplayr | 461 | cmp ax, ETHER_ARP |
302 | hidnplayr | 462 | je .is_arp ; It is ARP |
1 | ha | 463 | |
302 | hidnplayr | 464 | jmp .exit ; If not IP or ARP, ignore |
1 | ha | 465 | |
261 | hidnplayr | 466 | .is_ip: |
373 | mikedld | 467 | DEBUGF 1,"K : eth_rx - IP packet\n" |
261 | hidnplayr | 468 | inc dword [ip_rx_count] |
469 | call ether_IP_handler |
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470 | jmp .exit |
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1 | ha | 471 | |
261 | hidnplayr | 472 | .is_arp: |
373 | mikedld | 473 | DEBUGF 1,"K : eth_rx - ARP packet\n" |
261 | hidnplayr | 474 | ; At this point, the packet is still in the Ether_buffer |
475 | call arp_handler |
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1 | ha | 476 | |
261 | hidnplayr | 477 | .exit: |
302 | hidnplayr | 478 | ret |