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Rev | Author | Line No. | Line |
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3545 | hidnplayr | 1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ;; ;; |
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4467 | hidnplayr | 3 | ;; Copyright (C) KolibriOS team 2004-2014. All rights reserved. ;; |
3545 | hidnplayr | 4 | ;; Distributed under terms of the GNU General Public License ;; |
5 | ;; ;; |
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6 | ;; Ethernet driver for KolibriOS ;; |
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7 | ;; This is an adaptation of MenuetOS driver with minimal changes. ;; |
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8 | ;; Changes were made by CleverMouse. Original copyright follows. ;; |
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9 | ;; ;; |
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10 | ;; This driver is based on the SIS900 driver from ;; |
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11 | ;; the etherboot 5.0.6 project. The copyright statement is ;; |
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12 | ;; ;; |
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13 | ;; GNU GENERAL PUBLIC LICENSE ;; |
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14 | ;; Version 2, June 1991 ;; |
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15 | ;; ;; |
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16 | ;; remaining parts Copyright 2004 Jason Delozier, ;; |
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17 | ;; cordata51@hotmail.com ;; |
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18 | ;; ;; |
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19 | ;; See file COPYING for details ;; |
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20 | ;; ;; |
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21 | ;; Updates: ;; |
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22 | ;; Revision Look up table and SIS635 Mac Address by Jarek Pelczar ;; |
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23 | ;; ;; |
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24 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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25 | |||
26 | format MS COFF |
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27 | |||
28 | NUM_RX_DESC = 4 ; Number of RX descriptors |
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29 | NUM_TX_DESC = 4 ; Number of TX descriptors |
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30 | RX_BUFF_SZ = 1520 ; Buffer size for each Rx buffer |
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31 | TX_BUFF_SZ = 1516 ; Buffer size for each Tx buffer |
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32 | MAX_ETH_FRAME_SIZE = 1516 |
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33 | |||
34 | API_VERSION = 0x01000100 |
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35 | DRIVER_VERSION = 5 |
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36 | |||
37 | MAX_DEVICES = 16 |
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38 | |||
39 | DEBUG = 1 |
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40 | __DEBUG__ = 1 |
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41 | __DEBUG_LEVEL__ = 2 |
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42 | |||
43 | DSIZE = 0x00000fff |
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44 | CRC_SIZE = 4 |
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45 | RFADDR_shift = 16 |
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46 | |||
47 | ; If you are having problems sending/receiving packet try changing the |
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48 | ; Max DMA Burst, Possible settings are as follows: |
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49 | ; |
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50 | ; 0x00000000 = 512 bytes |
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51 | ; 0x00100000 = 4 bytes |
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52 | ; 0x00200000 = 8 bytes |
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53 | ; 0x00300000 = 16 bytes |
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54 | ; 0x00400000 = 32 bytes |
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55 | ; 0x00500000 = 64 bytes |
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56 | ; 0x00600000 = 128 bytes |
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57 | ; 0x00700000 = 256 bytes |
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58 | |||
59 | RX_DMA = 0x00600000 |
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60 | TX_DMA = 0x00600000 |
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61 | |||
62 | ;------------------------------------------------------------------------------------------------- |
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63 | ; Symbolic offsets to registers. |
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64 | cr = 0x0 ; Command Register |
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65 | cfg = 0x4 ; Configuration Register |
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66 | mear = 0x8 ; EEPROM Access Register |
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67 | ptscr = 0xc ; PCI Test Control Register |
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68 | isr = 0x10 ; Interrupt Status Register |
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69 | imr = 0x14 ; Interrupt Mask Register |
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70 | ier = 0x18 ; Interrupt Enable Register |
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71 | epar = 0x18 ; Enhanced PHY Access Register |
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72 | txdp = 0x20 ; Transmit Descriptor Pointer Register |
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73 | txcfg = 0x24 ; Transmit Configuration Register |
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74 | rxdp = 0x30 ; Receive Descriptor Pointer Register |
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75 | rxcfg = 0x34 ; Receive Configuration Register |
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76 | flctrl = 0x38 ; Flow Control Register |
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77 | rxlen = 0x3c ; Receive Packet Length Register |
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78 | rfcr = 0x48 ; Receive Filter Control Register |
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79 | rfdr = 0x4C ; Receive Filter Data Register |
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80 | pmctrl = 0xB0 ; Power Management Control Register |
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81 | pmer = 0xB4 ; Power Management Wake-up Event Register |
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82 | |||
83 | ; Command Register Bits |
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84 | RELOAD = 0x00000400 |
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85 | ACCESSMODE = 0x00000200 |
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86 | RESET = 0x00000100 |
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87 | SWI = 0x00000080 |
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88 | RxRESET = 0x00000020 |
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89 | TxRESET = 0x00000010 |
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90 | RxDIS = 0x00000008 |
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91 | RxENA = 0x00000004 |
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92 | TxDIS = 0x00000002 |
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93 | TxENA = 0x00000001 |
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94 | |||
95 | ; Configuration Register Bits |
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96 | DESCRFMT = 0x00000100 ; 7016 specific |
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97 | REQALG = 0x00000080 |
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98 | SB = 0x00000040 |
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99 | POW = 0x00000020 |
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100 | EXD = 0x00000010 |
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101 | PESEL = 0x00000008 |
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102 | LPM = 0x00000004 |
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103 | BEM = 0x00000001 |
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104 | RND_CNT = 0x00000400 |
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105 | FAIR_BACKOFF = 0x00000200 |
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106 | EDB_MASTER_EN = 0x00002000 |
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107 | |||
108 | ; Eeprom Access Reigster Bits |
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109 | MDC = 0x00000040 |
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110 | MDDIR = 0x00000020 |
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111 | MDIO = 0x00000010 ; 7016 specific |
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112 | EECS = 0x00000008 |
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113 | EECLK = 0x00000004 |
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114 | EEDO = 0x00000002 |
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115 | EEDI = 0x00000001 |
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116 | |||
117 | ; TX Configuration Register Bits |
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118 | ATP = 0x10000000 ; Automatic Transmit Padding |
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119 | MLB = 0x20000000 ; Mac Loopback Enable |
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120 | HBI = 0x40000000 ; HeartBeat Ignore (Req for full-dup) |
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121 | CSI = 0x80000000 ; CarrierSenseIgnore (Req for full-du |
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122 | |||
123 | ; RX Configuration Register Bits |
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124 | AJAB = 0x08000000 ; |
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125 | ATX = 0x10000000 ; Accept Transmit Packets |
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126 | ARP = 0x40000000 ; accept runt packets (<64bytes) |
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127 | AEP = 0x80000000 ; accept error packets |
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128 | |||
129 | ; Interrupt Register Bits |
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130 | WKEVT = 0x10000000 |
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131 | TxPAUSEEND = 0x08000000 |
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132 | TxPAUSE = 0x04000000 |
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133 | TxRCMP = 0x02000000 ; Transmit Reset Complete |
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134 | RxRCMP = 0x01000000 ; Receive Reset Complete |
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135 | DPERR = 0x00800000 |
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136 | SSERR = 0x00400000 |
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137 | RMABT = 0x00200000 |
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138 | RTABT = 0x00100000 |
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139 | RxSOVR = 0x00010000 |
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140 | HIBERR = 0x00008000 |
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141 | SWINT = 0x00001000 |
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142 | MIBINT = 0x00000800 |
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143 | TxURN = 0x00000400 |
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144 | TxIDLE = 0x00000200 |
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145 | TxERR = 0x00000100 |
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146 | TxDESC = 0x00000080 |
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147 | TxOK = 0x00000040 |
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148 | RxORN = 0x00000020 |
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149 | RxIDLE = 0x00000010 |
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150 | RxEARLY = 0x00000008 |
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151 | RxERR = 0x00000004 |
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152 | RxDESC = 0x00000002 |
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153 | RxOK = 0x00000001 |
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154 | |||
155 | ; Interrupt Enable Register Bits |
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156 | IE = RxOK + TxOK |
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157 | |||
158 | ; Revision ID |
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159 | SIS900B_900_REV = 0x03 |
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160 | SIS630A_900_REV = 0x80 |
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161 | SIS630E_900_REV = 0x81 |
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162 | SIS630S_900_REV = 0x82 |
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163 | SIS630EA1_900_REV = 0x83 |
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164 | SIS630ET_900_REV = 0x84 |
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165 | SIS635A_900_REV = 0x90 |
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166 | SIS900_960_REV = 0x91 |
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167 | |||
168 | ; Receive Filter Control Register Bits |
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169 | RFEN = 0x80000000 ; enable |
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170 | RFAAB = 0x40000000 ; accept all broadcasts |
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171 | RFAAM = 0x20000000 ; accept all multicasts |
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172 | RFAAP = 0x10000000 ; accept all packets |
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173 | |||
174 | ; Reveive Filter Data Mask |
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175 | RFDAT = 0x0000FFFF |
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176 | |||
177 | ; Eeprom Address |
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178 | EEPROMSignature = 0x00 |
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179 | EEPROMVendorID = 0x02 |
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180 | EEPROMDeviceID = 0x03 |
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181 | EEPROMMACAddr = 0x08 |
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182 | EEPROMChecksum = 0x0b |
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183 | |||
184 | ; The EEPROM commands include the alway-set leading bit. |
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185 | EEread = 0x0180 |
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186 | EEwrite = 0x0140 |
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187 | EEerase = 0x01C0 |
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188 | EEwriteEnable = 0x0130 |
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189 | EEwriteDisable = 0x0100 |
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190 | EEeraseAll = 0x0120 |
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191 | EEwriteAll = 0x0110 |
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192 | EEaddrMask = 0x013F |
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193 | EEcmdShift = 16 |
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194 | |||
195 | ; For SiS962 or SiS963, request the eeprom software access |
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196 | EEREQ = 0x00000400 |
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197 | EEDONE = 0x00000200 |
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198 | EEGNT = 0x00000100 |
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199 | |||
4467 | hidnplayr | 200 | include '../struct.inc' |
201 | include '../macros.inc' |
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3545 | hidnplayr | 202 | include '../proc32.inc' |
203 | include '../imports.inc' |
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204 | include '../fdo.inc' |
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205 | include '../netdrv.inc' |
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206 | |||
207 | public START |
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208 | public version |
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209 | |||
210 | |||
211 | virtual at ebx |
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212 | device: |
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213 | |||
214 | ETH_DEVICE |
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215 | |||
216 | .io_addr dd ? |
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217 | .pci_bus dd ? |
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218 | .pci_dev dd ? |
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219 | .irq_line db ? |
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220 | .cur_rx db ? |
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221 | .cur_tx db ? |
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222 | .last_tx db ? |
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223 | .pci_revision db ? |
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224 | .table_entries db ? |
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225 | rb 2 ; alignment |
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226 | |||
227 | .txd rd (4 * NUM_TX_DESC) |
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228 | .rxd rd (4 * NUM_RX_DESC) |
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229 | |||
230 | .size = $ - device |
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231 | |||
232 | end virtual |
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233 | |||
234 | macro ee_delay { |
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235 | push eax |
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236 | in eax, dx |
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237 | in eax, dx |
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238 | in eax, dx |
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239 | in eax, dx |
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240 | in eax, dx |
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241 | in eax, dx |
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242 | in eax, dx |
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243 | in eax, dx |
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244 | in eax, dx |
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245 | in eax, dx |
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246 | pop eax |
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247 | } |
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248 | |||
249 | |||
250 | section '.flat' code readable align 16 |
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251 | |||
252 | ; Driver entry point - register our service when the driver is loading. |
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253 | ; TODO: add needed operations when unloading |
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254 | START: |
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255 | cmp dword [esp+4], 1 |
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256 | jne .exit |
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257 | stdcall RegService, my_service, service_proc |
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258 | ret 4 |
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259 | .exit: |
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260 | xor eax, eax |
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261 | ret 4 |
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262 | |||
263 | ; Service procedure for the driver - handle all I/O requests for the driver. |
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264 | ; Currently handled requests are: SRV_GETVERSION = 0 and SRV_HOOK = 1. |
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265 | service_proc: |
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266 | ; 1. Get parameter from the stack: [esp+4] is the first parameter, |
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267 | ; pointer to IOCTL structure. |
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268 | mov edx, [esp+4] ; edx -> IOCTL |
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269 | ; 2. Get request code and select a handler for the code. |
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4470 | hidnplayr | 270 | mov eax, [edx + IOCTL.io_code] |
3545 | hidnplayr | 271 | test eax, eax ; check for SRV_GETVERSION |
272 | jnz @f |
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273 | ; 3. This is SRV_GETVERSION request, no input, 4 bytes output, API_VERSION. |
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274 | ; 3a. Output size must be at least 4 bytes. |
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4470 | hidnplayr | 275 | cmp [edx + IOCTL.out_size], 4 |
3545 | hidnplayr | 276 | jb .fail |
277 | ; 3b. Write result to the output buffer. |
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4470 | hidnplayr | 278 | mov eax, [edx + IOCTL.output] |
3545 | hidnplayr | 279 | mov [eax], dword API_VERSION |
280 | ; 3c. Return success. |
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281 | xor eax, eax |
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282 | ret 4 |
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283 | @@: |
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284 | dec eax ; check for SRV_HOOK |
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285 | jnz .fail |
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286 | ; 4. This is SRV_HOOK request, input defines the device to hook, no output. |
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287 | ; 4a. The driver works only with PCI devices, |
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288 | ; so input must be at least 3 bytes long. |
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4470 | hidnplayr | 289 | cmp [edx + IOCTL.inp_size], 3 |
3545 | hidnplayr | 290 | jb .fail |
291 | ; 4b. First byte of input is bus type, 1 stands for PCI. |
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4470 | hidnplayr | 292 | mov eax, [edx + IOCTL.input] |
3545 | hidnplayr | 293 | cmp byte [eax], 1 |
294 | jne .fail |
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295 | ; 4c. Second and third bytes of the input define the device: bus and dev. |
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296 | ; Word in bx holds both bytes. |
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297 | mov bx, [eax+1] |
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298 | ; 4d. Check if the device was already hooked, |
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299 | ; scan through the list of known devices. |
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300 | ; check if the device is already listed |
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301 | mov esi, device_list |
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302 | mov ecx, [devices] |
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303 | test ecx, ecx |
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304 | jz .firstdevice |
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305 | |||
4470 | hidnplayr | 306 | ; mov eax, [edx + IOCTL.input] ; get the pci bus and device numbers |
3545 | hidnplayr | 307 | mov ax, [eax+1] ; |
308 | .nextdevice: |
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309 | mov ebx, [esi] |
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310 | cmp al, byte[device.pci_bus] |
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311 | jne @f |
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312 | cmp ah, byte[device.pci_dev] |
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313 | je .find_devicenum ; Device is already loaded, let's find it's device number |
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314 | @@: |
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315 | add esi, 4 |
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316 | loop .nextdevice |
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317 | ; 4e. This device doesn't have its own eth_device structure yet, let's create one |
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318 | .firstdevice: |
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319 | ; 4f. Check that we have place for new device. |
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320 | cmp [devices], MAX_DEVICES |
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321 | jae .fail |
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322 | ; 4g. Allocate memory for device descriptor and receive+transmit buffers. |
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323 | ; 4h. Zero the structure. |
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324 | allocate_and_clear ebx, device.size, .fail |
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325 | ; 4i. Save PCI coordinates |
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4470 | hidnplayr | 326 | mov eax, [edx + IOCTL.input] |
3545 | hidnplayr | 327 | movzx ecx, byte[eax+1] |
328 | mov [device.pci_bus], ecx |
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329 | movzx ecx, byte[eax+2] |
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330 | mov [device.pci_dev], ecx |
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331 | ; 4j. Fill in the direct call addresses into the struct. |
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332 | mov [device.reset], reset |
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333 | mov [device.transmit], transmit |
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334 | mov [device.unload], unload |
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335 | mov [device.name], my_service |
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336 | |||
337 | ; 4k. Now, it's time to find the base io addres of the PCI device |
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338 | ; TODO: implement check if bus and dev exist on this machine |
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339 | |||
340 | ; Now, it's time to find the base io addres of the PCI device |
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341 | PCI_find_io |
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342 | |||
343 | ; We've found the io address, find IRQ now |
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344 | PCI_find_irq |
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345 | |||
346 | ; 4m. Add new device to the list (required for int_handler). |
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347 | mov eax, [devices] |
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348 | mov [device_list+4*eax], ebx |
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349 | inc [devices] |
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350 | |||
351 | ; 4m. Ok, the eth_device structure is ready, let's probe the device |
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352 | call probe |
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353 | test eax, eax |
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354 | jnz .destroy |
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355 | ; 4n. If device was successfully initialized, register it for the kernel. |
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356 | |||
357 | mov [device.type], NET_TYPE_ETH |
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358 | call NetRegDev |
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359 | |||
360 | cmp eax, -1 |
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361 | je .destroy |
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362 | |||
363 | ret 4 |
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364 | |||
365 | ; 5. If the device was already loaded, find the device number and return it in eax |
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366 | |||
367 | .find_devicenum: |
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368 | call NetPtrToNum ; This kernel procedure converts a pointer to device struct in ebx |
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369 | ; into a device number in edi |
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370 | mov eax, edi ; Application wants it in eax instead |
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371 | ret 4 |
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372 | |||
373 | ; If an error occured, remove all allocated data and exit (returning -1 in eax) |
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374 | |||
375 | .destroy: |
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376 | dec [devices] |
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377 | ; todo: reset device into virgin state |
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378 | |||
379 | .err: |
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380 | stdcall KernelFree, ebx |
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381 | |||
382 | .fail: |
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383 | xor eax, eax |
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384 | ret 4 |
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385 | |||
386 | |||
387 | ;;/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\;; |
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388 | ;; ;; |
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389 | ;; Actual Hardware dependent code starts here ;; |
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390 | ;; ;; |
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391 | ;;/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\;; |
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392 | |||
393 | unload: |
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394 | ; TODO: (in this particular order) |
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395 | ; |
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396 | ; - Stop the device |
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397 | ; - Detach int handler |
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398 | ; - Remove device from local list |
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399 | ; - call unregister function in kernel |
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400 | ; - Remove all allocated structures and buffers the card used |
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401 | |||
402 | or eax,-1 |
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403 | |||
404 | ret |
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405 | |||
406 | ;*************************************************************************** |
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407 | ; |
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408 | ; probe |
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409 | ; |
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410 | ; checks the card and enables it |
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411 | ; |
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412 | ; TODO: probe mii transceivers |
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413 | ; |
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414 | ;*************************************************************************** |
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415 | align 4 |
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416 | probe: |
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417 | DEBUGF 1, "Probe\n" |
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418 | |||
419 | ; wake up device CHECKME |
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420 | stdcall PciWrite8, [device.pci_bus], [device.pci_dev], 0x40, 0 |
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421 | |||
422 | PCI_make_bus_master |
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423 | |||
424 | PCI_adjust_latency 64 |
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425 | |||
426 | ; Get Card Revision |
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427 | stdcall PciRead8, [device.pci_bus], [device.pci_dev], 0x08 |
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428 | mov [device.pci_revision], al ; save the revision for later use |
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429 | |||
430 | ; Look up through the specific_table |
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431 | mov esi, specific_table |
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432 | .tableloop: |
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433 | cmp dword [esi], 0 ; Check if we reached end of the list |
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434 | je .notsupported |
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435 | cmp al, [esi] ; Check if revision is OK |
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436 | je .ok |
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437 | add esi, 12 ; Advance to next entry |
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438 | jmp .tableloop |
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439 | |||
440 | .ok: |
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441 | |||
442 | call dword[esi + 4] ; "get MAC" function |
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443 | |||
444 | ; Set table entries |
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445 | mov [device.table_entries], 16 |
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446 | cmp [device.pci_revision], SIS635A_900_REV |
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447 | jae @f |
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448 | cmp [device.pci_revision], SIS900B_900_REV |
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449 | je @f |
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450 | mov [device.table_entries], 8 |
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451 | @@: |
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452 | |||
453 | ; TODO: Probe for mii transceiver |
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454 | |||
455 | jmp reset |
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456 | |||
457 | .notsupported: |
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458 | DEBUGF 1, "Device not supported\n" |
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459 | or eax, -1 |
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460 | |||
461 | ret |
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462 | |||
463 | reset: |
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464 | |||
465 | DEBUGF 1, "reset\n" |
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466 | |||
467 | movzx eax, [device.irq_line] |
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468 | stdcall AttachIntHandler, eax, int_handler, 0 |
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469 | |||
470 | ;-------------------------------------------- |
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471 | ; Disable Interrupts and reset Receive Filter |
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472 | |||
473 | set_io 0 |
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474 | set_io ier |
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475 | xor eax, eax |
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476 | out dx, eax |
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477 | |||
478 | set_io imr |
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479 | out dx, eax |
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480 | |||
481 | set_io rfcr |
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482 | out dx, eax |
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483 | |||
484 | ;----------- |
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485 | ; Reset Card |
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486 | |||
487 | set_io cr |
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488 | in eax, dx ; Get current Command Register |
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489 | or eax, RESET + RxRESET + TxRESET ; set flags |
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490 | out dx, eax ; Write new Command Register |
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491 | |||
492 | ;---------- |
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493 | ; Wait loop |
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494 | |||
495 | set_io isr |
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496 | mov ecx, 1000 |
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497 | .loop: |
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498 | dec ecx |
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499 | jz .fail |
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500 | in eax, dx ; read interrupt status |
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501 | test eax, TxRCMP + RxRCMP |
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502 | jz .loop |
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503 | DEBUGF 1, "status=%x\n", eax |
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504 | |||
505 | ;------------------------------------------------------ |
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506 | ; Set Configuration Register depending on Card Revision |
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507 | |||
508 | set_io cfg |
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509 | mov eax, PESEL ; Configuration Register Bit |
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510 | cmp [device.pci_revision], SIS635A_900_REV |
||
511 | je .match |
||
512 | cmp [device.pci_revision], SIS900B_900_REV ; Check card revision |
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513 | jne .done |
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514 | .match: ; Revision match |
||
515 | or eax, RND_CNT ; Configuration Register Bit |
||
516 | .done: |
||
517 | out dx, eax |
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518 | |||
519 | DEBUGF 1, "Initialising RX Filter\n" |
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520 | |||
521 | ; Get Receive Filter Control Register |
||
522 | set_io rfcr |
||
523 | in eax, dx |
||
524 | push eax |
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525 | |||
526 | ; disable packet filtering before setting filter |
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527 | and eax, not RFEN |
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528 | out dx, eax |
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529 | |||
530 | ; load MAC addr to filter data register |
||
531 | xor ecx, ecx |
||
532 | .macloop: |
||
533 | mov eax, ecx |
||
534 | set_io 0 |
||
535 | set_io rfcr |
||
536 | shl eax, 16 ; high word of eax tells card which mac byte to write |
||
537 | out dx, eax ; |
||
538 | set_io rfdr |
||
539 | mov ax, word [device.mac + ecx*2] ; Get Mac ID word |
||
540 | out dx, ax ; Send Mac ID |
||
541 | inc cl ; send next word |
||
542 | cmp cl, 3 ; more to send? |
||
543 | jne .macloop |
||
544 | |||
545 | ; enable packet filtering |
||
546 | pop eax ; old register value |
||
547 | set_io rfcr |
||
548 | or eax, RFEN ; enable filtering |
||
549 | out dx, eax ; set register |
||
550 | |||
551 | DEBUGF 1, "Initialising TX Descriptors\n" |
||
552 | |||
553 | mov ecx, NUM_TX_DESC |
||
554 | lea esi, [device.txd] |
||
555 | .txdescloop: |
||
556 | lea eax, [esi + 16] ; next ptr |
||
557 | GetRealAddr |
||
558 | mov dword [esi], eax ; link to next desc |
||
559 | mov dword [esi + 4], 0 ; status field |
||
560 | mov dword [esi + 8], 0 ; ptr to buffer |
||
561 | add esi, 16 |
||
562 | dec ecx |
||
563 | jnz .txdescloop |
||
564 | |||
565 | lea eax, [device.txd] |
||
566 | GetRealAddr |
||
567 | mov dword [esi - 16], eax ; correct last descriptor link ptr |
||
568 | |||
569 | set_io txdp ; TX Descriptor Pointer |
||
570 | ; lea eax, [device.txd] |
||
571 | ; GetRealAddr |
||
572 | out dx, eax |
||
573 | |||
574 | mov [device.cur_tx], 0 ; Set current tx descriptor to 0 |
||
575 | mov [device.last_tx], 0 |
||
576 | |||
577 | DEBUGF 1, "Initialising RX Descriptors\n" |
||
578 | |||
579 | mov ecx, NUM_RX_DESC |
||
580 | lea esi, [device.rxd] |
||
581 | .rxdescloop: |
||
582 | lea eax, [esi + 16] ; next ptr |
||
583 | GetRealAddr |
||
584 | mov dword [esi], eax |
||
585 | mov dword [esi + 4], RX_BUFF_SZ ; size |
||
586 | |||
587 | push ecx esi |
||
588 | stdcall KernelAlloc, RX_BUFF_SZ |
||
589 | pop esi ecx |
||
590 | test eax, eax |
||
591 | jz .fail |
||
592 | mov dword [esi + 12], eax ; address |
||
593 | GetRealAddr |
||
594 | mov dword [esi + 8], eax ; real address |
||
595 | add esi, 16 |
||
596 | dec ecx |
||
597 | jnz .rxdescloop |
||
598 | |||
599 | lea eax, [device.rxd] |
||
600 | GetRealAddr |
||
601 | mov dword [esi - 16], eax ; correct last descriptor link ptr |
||
602 | |||
603 | set_io 0 |
||
604 | set_io rxdp |
||
605 | ; lea eax, [device.rxd] |
||
606 | ; GetRealAddr |
||
607 | out dx, eax |
||
608 | |||
609 | mov [device.cur_rx], 0 ; Set current rx descriptor to 0 |
||
610 | |||
611 | DEBUGF 1, "setting RX mode\n" |
||
612 | |||
613 | xor cl, cl |
||
614 | .rxfilterloop: |
||
615 | set_io 0 |
||
616 | set_io rfcr ; Receive Filter Control Reg offset |
||
617 | mov eax, 4 ; determine table entry |
||
618 | add al, cl |
||
619 | shl eax, 16 |
||
620 | out dx, eax ; tell card which entry to modify |
||
621 | |||
622 | set_io rfdr ; Receive Filter Control Reg offset |
||
623 | mov eax, 0xffff ; entry value |
||
624 | out dx, ax ; write value to table in card |
||
625 | |||
626 | inc cl ; next entry |
||
627 | cmp cl, [device.table_entries] |
||
628 | jb .rxfilterloop |
||
629 | |||
630 | set_io rfcr ; Receive Filter Control Register offset |
||
631 | mov eax, RFAAB + RFAAM + RFAAP + RFEN |
||
632 | out dx, eax |
||
633 | |||
634 | set_io rxcfg ; Receive Config Register offset |
||
635 | mov eax, ATX + RX_DMA + 2 ; 0x2 : RX Drain Threshold = 8*8=64 bytes |
||
636 | out dx, eax |
||
637 | |||
638 | DEBUGF 1, "setting TX mode\n" |
||
639 | |||
640 | set_io txcfg ; Transmit config Register offset |
||
641 | mov eax, ATP + HBI + CSI + TX_DMA + 0x120 |
||
642 | ; TX Fill threshold = 0x100 |
||
643 | ; TX Drain Threshold = 0x20 |
||
644 | out dx, eax |
||
645 | |||
646 | DEBUGF 1, "Enabling interrupts\n" |
||
647 | |||
648 | set_io imr |
||
649 | mov eax, IE ; Interrupt enable mask |
||
650 | out dx, eax |
||
651 | |||
652 | set_io cr |
||
653 | in eax, dx |
||
654 | or eax, RxENA ; Enable Receive |
||
655 | out dx, eax |
||
656 | |||
657 | set_io ier ; Interrupt enable |
||
658 | mov eax, 1 |
||
659 | out dx, eax |
||
660 | |||
661 | mov [device.mtu], 1514 |
||
662 | |||
663 | ; Set link state to unknown |
||
664 | mov [device.state], ETH_LINK_UNKOWN |
||
665 | |||
666 | xor eax, eax |
||
667 | ret |
||
668 | |||
669 | .fail: |
||
670 | DEBUGF 1, "Resetting device failed\n" |
||
671 | or eax, -1 |
||
672 | |||
673 | ret |
||
674 | |||
675 | |||
676 | ;*************************************************************************** |
||
677 | ; |
||
678 | ; SIS960_get_mac_addr: - Get MAC address for SiS962 or SiS963 model |
||
679 | ; |
||
680 | ; SiS962 or SiS963 model, use EEPROM to store MAC address. |
||
681 | ; EEPROM is shared by LAN and 1394. |
||
682 | ; When access EEPROM, send EEREQ signal to hardware first, and wait for EEGNT. |
||
683 | ; If EEGNT is ON, EEPROM is permitted to be accessed by LAN, otherwise is not. |
||
684 | ; After MAC address is read from EEPROM, send |
||
685 | ; EEDONE signal to refuse EEPROM access by LAN. |
||
686 | ; The EEPROM map of SiS962 or SiS963 is different to SiS900. |
||
687 | ; The signature field in SiS962 or SiS963 spec is meaningless. |
||
688 | ; |
||
689 | ; Return 0 is EAX = failure |
||
690 | ; |
||
691 | ;*************************************************************************** |
||
692 | align 4 |
||
693 | SIS960_get_mac_addr: |
||
694 | DEBUGF 1, "SIS960 - get mac: " |
||
695 | |||
696 | ;------------------------------- |
||
697 | ; Send Request for eeprom access |
||
698 | |||
699 | set_io 0 |
||
700 | set_io mear ; Eeprom access register |
||
701 | mov eax, EEREQ ; Request access to eeprom |
||
702 | out dx, eax ; Send request |
||
703 | |||
704 | ;----------------------------------------------------- |
||
705 | ; Loop 4000 times and if access not granted, error out |
||
706 | |||
707 | mov ecx, 4000 |
||
708 | .loop: |
||
709 | in eax, dx ; get eeprom status |
||
710 | test eax, EEGNT ; see if eeprom access granted flag is set |
||
711 | jnz .got_access ; if it is, go access the eeprom |
||
712 | loop .loop ; else keep waiting |
||
713 | |||
714 | DEBUGF 1, "Access to EEprom failed!\n", 0 |
||
715 | |||
716 | set_io mear ; Eeprom access register |
||
717 | mov eax, EEDONE ; tell eeprom we are done |
||
718 | out dx, eax |
||
719 | |||
720 | or eax, -1 ; error |
||
721 | ret |
||
722 | |||
723 | .got_access: |
||
724 | |||
725 | ;------------------------------------------ |
||
726 | ; EEprom access granted, read MAC from card |
||
727 | |||
728 | ; zero based so 3-16 bit reads will take place |
||
729 | |||
730 | mov ecx, 2 |
||
731 | .read_loop: |
||
732 | mov eax, EEPROMMACAddr ; Base Mac Address |
||
733 | add eax, ecx ; Current Mac Byte Offset |
||
734 | push ecx |
||
735 | call read_eeprom ; try to read 16 bits |
||
736 | pop ecx |
||
737 | mov word [device.mac+ecx*2], ax ; save 16 bits to the MAC ID varible |
||
738 | dec ecx ; one less word to read |
||
739 | jns .read_loop ; if more read more |
||
740 | mov eax, 1 ; return non-zero indicating success |
||
741 | |||
742 | DEBUGF 2,"%x-%x-%x-%x-%x-%x\n",[device.mac]:2,[device.mac+1]:2,[device.mac+2]:2,[device.mac+3]:2,[device.mac+4]:2,[device.mac+5]:2 |
||
743 | |||
744 | ;------------------------------------- |
||
745 | ; Tell EEPROM We are Done Accessing It |
||
746 | |||
747 | .done: |
||
748 | set_io 0 |
||
749 | set_io mear ; Eeprom access register |
||
750 | mov eax, EEDONE ; tell eeprom we are done |
||
751 | out dx, eax |
||
752 | |||
753 | xor eax, eax ; ok |
||
754 | ret |
||
755 | |||
756 | |||
757 | |||
758 | |||
759 | ;*************************************************************************** |
||
760 | ; |
||
761 | ; get_mac_addr: - Get MAC address for stand alone SiS900 model |
||
762 | ; |
||
763 | ; Older SiS900 and friends, use EEPROM to store MAC address. |
||
764 | ; |
||
765 | ;*************************************************************************** |
||
766 | align 4 |
||
767 | SIS900_get_mac_addr: |
||
768 | DEBUGF 1, "SIS900 - get mac: " |
||
769 | |||
770 | ;------------------------------------ |
||
771 | ; check to see if we have sane EEPROM |
||
772 | |||
773 | mov eax, EEPROMSignature ; Base Eeprom Signature |
||
774 | call read_eeprom ; try to read 16 bits |
||
775 | cmp ax, 0xffff |
||
776 | je .err |
||
777 | test ax, ax |
||
778 | je .err |
||
779 | |||
780 | ;----------- |
||
781 | ; Read MacID |
||
782 | |||
783 | ; zero based so 3-16 bit reads will take place |
||
784 | |||
785 | mov ecx, 2 |
||
786 | .loop: |
||
787 | mov eax, EEPROMMACAddr ; Base Mac Address |
||
788 | add eax, ecx ; Current Mac Byte Offset |
||
789 | push ecx |
||
790 | call read_eeprom ; try to read 16 bits |
||
791 | pop ecx |
||
792 | mov word [device.mac+ecx*2], ax ; save 16 bits to the MAC ID storage |
||
793 | dec ecx ; one less word to read |
||
794 | jns .loop ; if more read more |
||
795 | |||
796 | DEBUGF 2,"%x-%x-%x-%x-%x-%x\n",[device.mac]:2,[device.mac+1]:2,[device.mac+2]:2,[device.mac+3]:2,[device.mac+4]:2,[device.mac+5]:2 |
||
797 | |||
798 | xor eax, eax |
||
799 | ret |
||
800 | |||
801 | |||
802 | .err: |
||
803 | DEBUGF 1, "Access to EEprom failed!\n", 0 |
||
804 | |||
805 | or eax, -1 |
||
806 | ret |
||
807 | |||
808 | |||
809 | ;*************************************************************************** |
||
810 | ; |
||
811 | ; Get_Mac_SIS635_900_REV: - Get MAC address for model 635 |
||
812 | ; |
||
813 | ;*************************************************************************** |
||
814 | align 4 |
||
815 | Get_Mac_SIS635_900_REV: |
||
816 | DEBUGF 1, "SIS635 - get mac: " |
||
817 | |||
818 | set_io 0 |
||
819 | set_io rfcr |
||
820 | in eax, dx |
||
821 | mov esi, eax |
||
822 | |||
823 | set_io cr |
||
824 | or eax, RELOAD |
||
825 | out dx, eax |
||
826 | |||
827 | xor eax, eax |
||
828 | out dx, eax |
||
829 | |||
830 | ;----------------------------------------------- |
||
831 | ; Disable packet filtering before setting filter |
||
832 | |||
833 | set_io rfcr |
||
834 | mov eax, esi |
||
835 | and eax, not RFEN |
||
836 | out dx, eax |
||
837 | |||
838 | ;--------------------------------- |
||
839 | ; Load MAC to filter data register |
||
840 | |||
841 | xor ecx, ecx |
||
842 | lea edi, [device.mac] |
||
843 | .loop: |
||
844 | set_io 0 |
||
845 | set_io rfcr |
||
846 | mov eax, ecx |
||
847 | shl eax, RFADDR_shift |
||
848 | out dx, eax |
||
849 | |||
850 | set_io rfdr |
||
851 | in ax, dx |
||
852 | stosw |
||
853 | inc ecx |
||
854 | cmp ecx, 3 |
||
855 | jb .loop |
||
856 | |||
857 | ;------------------------ |
||
858 | ; Enable packet filtering |
||
859 | |||
860 | set_io rfcr |
||
861 | mov eax, esi |
||
862 | or eax, RFEN |
||
863 | out dx, eax |
||
864 | |||
865 | DEBUGF 2,"%x-%x-%x-%x-%x-%x\n",[device.mac]:2,[device.mac+1]:2,[device.mac+2]:2,[device.mac+3]:2,[device.mac+4]:2,[device.mac+5]:2 |
||
866 | |||
867 | xor eax, eax |
||
868 | ret |
||
869 | |||
870 | ;*************************************************************************** |
||
871 | ; |
||
872 | ; read_eeprom |
||
873 | ; |
||
874 | ; reads and returns a given location from EEPROM |
||
875 | ; |
||
876 | ; IN: si = addr |
||
877 | ; OUT: ax = data |
||
878 | ; |
||
879 | ;*************************************************************************** |
||
880 | align 4 |
||
881 | read_eeprom: |
||
882 | |||
883 | set_io 0 |
||
884 | set_io mear |
||
885 | |||
886 | xor eax, eax ; start send |
||
887 | out dx, eax |
||
888 | ee_delay |
||
889 | |||
890 | or eax, EECLK |
||
891 | out dx, eax |
||
892 | ee_delay |
||
893 | |||
894 | ;------------------------------------ |
||
895 | ; Send the read command |
||
896 | |||
897 | or esi, EEread |
||
898 | mov ecx, 1 shl 9 |
||
899 | |||
900 | .loop: |
||
901 | mov eax, EECS |
||
902 | test esi, ecx |
||
903 | jz @f |
||
904 | or eax, EEDI |
||
905 | @@: |
||
906 | out dx, eax |
||
907 | ee_delay |
||
908 | |||
909 | or eax, EECLK |
||
910 | out dx, eax |
||
911 | ee_delay |
||
912 | |||
913 | shr esi, 1 |
||
914 | jnc .loop |
||
915 | |||
916 | mov eax, EECS |
||
917 | out dx, eax |
||
918 | ee_delay |
||
919 | |||
920 | ;------------------------ |
||
921 | ; Read 16-bits of data in |
||
922 | |||
923 | xor esi, esi |
||
924 | mov cx, 16 |
||
925 | .loop2: |
||
926 | mov eax, EECS |
||
927 | out dx, eax |
||
928 | ee_delay |
||
929 | |||
930 | or eax, EECLK |
||
931 | out dx, eax |
||
932 | ee_delay |
||
933 | |||
934 | in eax, dx |
||
935 | shl esi, 1 |
||
936 | test eax, EEDO |
||
937 | jz @f |
||
938 | inc esi |
||
939 | @@: |
||
940 | loop .loop2 |
||
941 | |||
942 | ;---------------------------- |
||
943 | ; Terminate the EEPROM access |
||
944 | |||
945 | xor eax, eax |
||
946 | out dx, eax |
||
947 | ee_delay |
||
948 | |||
949 | mov eax, EECLK |
||
950 | out dx, eax |
||
951 | ee_delay |
||
952 | |||
953 | movzx eax, si |
||
954 | |||
955 | ret |
||
956 | |||
957 | |||
958 | |||
959 | align 4 |
||
960 | write_mac: |
||
961 | DEBUGF 1,'Setting MAC is not supported for SIS900 card.\n' |
||
962 | add esp, 6 |
||
963 | ret |
||
964 | |||
965 | |||
966 | |||
967 | |||
968 | ;*************************************************************************** |
||
969 | ; Function |
||
970 | ; transmit |
||
971 | ; Description |
||
972 | ; Transmits a packet of data via the ethernet card |
||
973 | ; buffer pointer in [esp+4] |
||
974 | ; size of buffer in [esp+8] |
||
975 | ; pointer to device structure in ebx |
||
976 | ; |
||
977 | ;*************************************************************************** |
||
978 | align 4 |
||
979 | transmit: |
||
980 | DEBUGF 1,"Transmitting packet, buffer:%x, size:%u\n",[esp+4],[esp+8] |
||
981 | mov eax, [esp+4] |
||
982 | DEBUGF 1,"To: %x-%x-%x-%x-%x-%x From: %x-%x-%x-%x-%x-%x Type:%x%x\n",\ |
||
983 | [eax+00]:2,[eax+01]:2,[eax+02]:2,[eax+03]:2,[eax+04]:2,[eax+05]:2,\ |
||
984 | [eax+06]:2,[eax+07]:2,[eax+08]:2,[eax+09]:2,[eax+10]:2,[eax+11]:2,\ |
||
985 | [eax+13]:2,[eax+12]:2 |
||
986 | |||
987 | cmp dword [esp + 8], MAX_ETH_FRAME_SIZE |
||
988 | ja .error |
||
989 | cmp dword [esp + 8], 60 |
||
990 | jb .error |
||
991 | |||
992 | movzx ecx, [device.cur_tx] |
||
993 | shl ecx, 4 ; *16 |
||
994 | lea ecx, [device.txd + ecx] |
||
995 | |||
996 | test dword [ecx + 4], 0x80000000 ; card owns descriptor ? |
||
997 | jnz .error |
||
998 | |||
999 | mov eax, [esp + 4] |
||
1000 | mov dword [ecx + 12], eax |
||
1001 | GetRealAddr |
||
1002 | mov dword [ecx + 8], eax ; buffer address |
||
1003 | |||
1004 | mov eax, [esp + 8] |
||
1005 | and eax, DSIZE |
||
1006 | or eax, 0x80000000 ; card owns descriptor |
||
1007 | mov dword [ecx + 4], eax ; status field |
||
1008 | |||
1009 | set_io 0 |
||
1010 | set_io cr |
||
1011 | in eax, dx |
||
1012 | or eax, TxENA ; Enable the transmit state machine |
||
1013 | out dx, eax |
||
1014 | |||
1015 | inc [device.cur_tx] |
||
1016 | and [device.cur_tx], NUM_TX_DESC-1 |
||
1017 | |||
1018 | ; update stats |
||
1019 | mov ecx, [esp + 8] |
||
1020 | inc [device.packets_tx] |
||
1021 | add dword [device.bytes_tx], ecx |
||
1022 | adc dword [device.bytes_tx + 4], 0 |
||
1023 | |||
1024 | .finish: |
||
1025 | DEBUGF 1,"Packet sent!\n" |
||
1026 | xor eax, eax |
||
1027 | ret 8 |
||
1028 | |||
1029 | .error: |
||
1030 | DEBUGF 1,"ERROR!\n" |
||
1031 | stdcall KernelFree, [esp+4] |
||
1032 | or eax, -1 |
||
1033 | ret 8 |
||
1034 | |||
1035 | |||
1036 | ;*************************************************************************** |
||
1037 | ; |
||
1038 | ; int_handler |
||
1039 | ; |
||
1040 | ; handles received IRQs, which signal received packets |
||
1041 | ; |
||
1042 | ; Currently only supports one descriptor per packet, if packet is fragmented |
||
1043 | ; between multiple descriptors you will lose part of the packet |
||
1044 | ; |
||
1045 | ;*************************************************************************** |
||
1046 | |||
1047 | align 4 |
||
1048 | int_handler: |
||
1049 | |||
1050 | push ebx esi edi |
||
1051 | |||
1052 | DEBUGF 1,"\n%s int\n", my_service |
||
1053 | |||
1054 | ; find pointer of device which made IRQ occur |
||
1055 | |||
1056 | mov ecx, [devices] |
||
1057 | test ecx, ecx |
||
1058 | jz .nothing |
||
1059 | mov esi, device_list |
||
1060 | .nextdevice: |
||
1061 | mov ebx, [esi] |
||
1062 | |||
1063 | set_io 0 |
||
1064 | set_io isr |
||
1065 | in eax, dx ; note that this clears all interrupts |
||
1066 | test ax, IE |
||
1067 | jnz .got_it |
||
1068 | .continue: |
||
1069 | add esi, 4 |
||
1070 | dec ecx |
||
1071 | jnz .nextdevice |
||
1072 | .nothing: |
||
1073 | pop edi esi ebx |
||
1074 | xor eax, eax |
||
1075 | |||
1076 | ret |
||
1077 | |||
1078 | .got_it: |
||
1079 | |||
1080 | DEBUGF 1,"Device: %x Status: %x ", ebx, ax |
||
1081 | |||
1082 | test ax, RxOK |
||
1083 | jz .no_rx_ |
||
1084 | |||
1085 | push ax |
||
1086 | |||
1087 | .rx_loop: |
||
1088 | |||
1089 | ;----------- |
||
1090 | ; Get Status |
||
1091 | movzx eax, [device.cur_rx] ; find current descriptor |
||
1092 | shl eax, 4 ; * 16 |
||
1093 | mov ecx, dword[device.rxd + eax + 4] ; get receive status |
||
1094 | |||
1095 | ;------------------------------------------- |
||
1096 | ; Check RX_Status to see if packet is waiting |
||
1097 | test ecx, 0x80000000 |
||
1098 | jz .no_rx |
||
1099 | |||
1100 | ;---------------------------------------------- |
||
1101 | ; There is a packet waiting check it for errors |
||
1102 | test ecx, 0x67C0000 ; see if there are any errors |
||
1103 | jnz .error_status |
||
1104 | |||
1105 | ;--------------------- |
||
1106 | ; Check size of packet |
||
1107 | and ecx, DSIZE ; get packet size minus CRC |
||
1108 | sub ecx, CRC_SIZE ; make sure packet contains data |
||
1109 | jbe .error_size |
||
1110 | |||
1111 | ; update statistics |
||
1112 | inc dword [device.packets_rx] |
||
1113 | add dword [device.bytes_rx], ecx |
||
1114 | adc dword [device.bytes_rx + 4], 0 |
||
1115 | |||
1116 | push ebx |
||
1117 | push .return |
||
1118 | push ecx ; packet size |
||
1119 | pushd [device.rxd + eax + 12] ; packet ptr |
||
1120 | DEBUGF 1, "Packet received OK\n" |
||
1121 | jmp Eth_input |
||
1122 | .return: |
||
1123 | pop ebx |
||
1124 | |||
1125 | ; Reset status, allow ethernet card access to descriptor |
||
1126 | stdcall KernelAlloc, RX_BUFF_SZ |
||
1127 | test eax, eax |
||
1128 | jz .fail |
||
1129 | movzx ecx, [device.cur_rx] |
||
1130 | shl ecx, 4 ; *16 |
||
1131 | lea ecx, [device.rxd + ecx] |
||
1132 | mov dword [ecx + 12], eax |
||
1133 | GetRealAddr |
||
1134 | mov dword [ecx + 8], eax |
||
1135 | mov dword [ecx + 4], RX_BUFF_SZ |
||
1136 | |||
1137 | inc [device.cur_rx] ; get next descriptor |
||
1138 | and [device.cur_rx], NUM_RX_DESC-1 ; only 4 descriptors 0-3 |
||
1139 | |||
1140 | jmp .rx_loop |
||
1141 | |||
1142 | .no_rx: |
||
1143 | set_io 0 |
||
1144 | set_io cr |
||
1145 | in eax, dx |
||
1146 | or eax, RxENA ; Re-Enable the Receive state machine |
||
1147 | out dx, eax |
||
1148 | |||
1149 | pop ax |
||
1150 | |||
1151 | .no_rx_: |
||
1152 | test ax, TxOK |
||
1153 | jz .no_tx |
||
1154 | |||
1155 | DEBUGF 1, "TX ok!\n" |
||
1156 | |||
1157 | .tx_loop: |
||
1158 | movzx ecx, [device.last_tx] |
||
1159 | shl ecx, 4 ; *16 |
||
1160 | lea ecx, [device.txd + ecx] |
||
1161 | |||
1162 | test dword [ecx + 4], 0x80000000 ; card owns descr |
||
1163 | jnz .no_tx |
||
1164 | cmp dword [ecx + 12], 0 |
||
1165 | je .no_tx |
||
1166 | |||
1167 | DEBUGF 1, "Freeing packet = %x\n", [ecx + 12]:8 |
||
1168 | push dword [ecx + 12] |
||
1169 | mov dword [ecx + 12], 0 |
||
1170 | call KernelFree |
||
1171 | |||
1172 | inc [device.last_tx] |
||
1173 | and [device.last_tx], NUM_TX_DESC-1 |
||
1174 | jmp .tx_loop |
||
1175 | |||
1176 | .no_tx: |
||
1177 | .fail: |
||
1178 | pop edi esi ebx |
||
1179 | xor eax, eax |
||
1180 | inc eax |
||
1181 | |||
1182 | ret |
||
1183 | |||
1184 | ret |
||
1185 | |||
1186 | .error_status: |
||
1187 | DEBUGF 1, "Packet error: %x\n", ecx |
||
1188 | jmp .fail |
||
1189 | |||
1190 | .error_size: |
||
1191 | DEBUGF 1, "Packet too large/small\n" |
||
1192 | jmp .fail |
||
1193 | |||
1194 | |||
1195 | |||
1196 | |||
1197 | |||
1198 | ; End of code |
||
1199 | |||
1200 | align 4 ; Place all initialised data here |
||
1201 | |||
1202 | devices dd 0 |
||
1203 | |||
1204 | specific_table: |
||
1205 | ; dd SIS630A_900_REV, Get_Mac_SIS630A_900_REV, 0 |
||
1206 | ; dd SIS630E_900_REV, Get_Mac_SIS630E_900_REV, 0 |
||
1207 | dd SIS630S_900_REV, Get_Mac_SIS635_900_REV, 0 |
||
1208 | dd SIS630EA1_900_REV, Get_Mac_SIS635_900_REV, 0 |
||
1209 | dd SIS630ET_900_REV, Get_Mac_SIS635_900_REV, 0 ;SIS630ET_900_REV_SpecialFN |
||
1210 | dd SIS635A_900_REV, Get_Mac_SIS635_900_REV, 0 |
||
1211 | dd SIS900_960_REV, SIS960_get_mac_addr, 0 |
||
1212 | dd SIS900B_900_REV, SIS900_get_mac_addr, 0 |
||
1213 | dd 0 ; end of list |
||
1214 | |||
1215 | version dd (DRIVER_VERSION shl 16) or (API_VERSION and 0xFFFF) |
||
1216 | my_service db 'SIS900',0 ; max 16 chars include zero |
||
1217 | |||
1218 | include_debug_strings ; All data wich FDO uses will be included here |
||
1219 | |||
1220 | section '.data' data readable writable align 16; place all uninitialized data place here |
||
1221 | |||
1222 | device_list rd MAX_DEVICES ; This list contains all pointers to device structures the driver is handling64bytes) |
||
1223 |