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Rev | Author | Line No. | Line |
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3545 | hidnplayr | 1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ;; ;; |
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3 | ;; Copyright (C) KolibriOS team 2004-2013. All rights reserved. ;; |
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4 | ;; Distributed under terms of the GNU General Public License ;; |
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5 | ;; ;; |
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6 | ;; DEC 21x4x driver for KolibriOS ;; |
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7 | ;; ;; |
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8 | ;; Based on dec21140.Asm from Solar OS by ;; |
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9 | ;; Eugen Brasoveanu, ;; |
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10 | ;; Ontanu Bogdan Valentin ;; |
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11 | ;; ;; |
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12 | ;; Written by hidnplayr@kolibrios.org ;; |
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13 | ;; ;; |
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14 | ;; GNU GENERAL PUBLIC LICENSE ;; |
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15 | ;; Version 2, June 1991 ;; |
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16 | ;; ;; |
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17 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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18 | |||
19 | format MS COFF |
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20 | |||
21 | API_VERSION = 0x01000100 |
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22 | DRIVER_VERSION = 5 |
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23 | |||
24 | MAX_DEVICES = 16 |
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25 | |||
26 | RX_DES_COUNT = 4 ; no of RX descriptors, must be power of 2 |
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27 | RX_BUFF_SIZE = 2048 ; size of buffer for each descriptor, must be multiple of 4 and <= 2048 TDES1_TBS1_MASK |
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28 | |||
29 | TX_DES_COUNT = 4 ; no of TX descriptors, must be power of 2 |
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30 | TX_BUFF_SIZE = 2048 ; size of buffer for each descriptor, used for memory allocation only |
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31 | |||
32 | |||
33 | DEBUG = 1 |
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34 | __DEBUG__ = 1 |
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35 | __DEBUG_LEVEL__ = 2 |
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36 | |||
37 | include '../proc32.inc' |
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38 | include '../imports.inc' |
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39 | include '../fdo.inc' |
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40 | include '../netdrv.inc' |
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41 | |||
42 | public START |
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43 | public service_proc |
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44 | public version |
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45 | |||
46 | virtual at ebx |
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47 | |||
48 | device: |
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49 | |||
50 | ETH_DEVICE |
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51 | |||
52 | .rx_p_des dd ? ; descriptors ring with received packets |
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53 | .tx_p_des dd ? ; descriptors ring with 'to transmit' packets |
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54 | .tx_free_des dd ? ; Tx descriptors available |
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55 | .tx_wr_des dd ? ; Tx current descriptor to write data to |
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56 | .tx_rd_des dd ? ; Tx current descriptor to read TX completion |
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57 | .rx_crt_des dd ? ; Rx current descriptor |
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58 | |||
59 | .io_addr dd ? |
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60 | .pci_bus dd ? |
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61 | .pci_dev dd ? |
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62 | .irq_line db ? |
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63 | |||
64 | .size = $ - device |
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65 | |||
66 | end virtual |
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67 | |||
68 | ;------------------------------------------- |
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69 | ; configuration registers |
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70 | ;------------------------------------------- |
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71 | CFCS = 4 ; configuration and status register |
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72 | |||
73 | CSR0 = 0x00 ; Bus mode |
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74 | CSR1 = 0x08 ; Transmit Poll Command |
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75 | CSR2 = 0x10 ; Receive Poll Command |
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76 | CSR3 = 0x18 ; Receive list base address |
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77 | CSR4 = 0x20 ; Transmit list base address |
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78 | CSR5 = 0x28 ; Status |
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79 | CSR6 = 0x30 ; Operation mode |
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80 | CSR7 = 0x38 ; Interrupt enable |
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81 | CSR8 = 0x40 ; Missed frames and overflow counter |
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82 | CSR9 = 0x48 ; Boot ROM, serial ROM, and MII management |
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83 | CSR10 = 0x50 ; Boot ROM programming address |
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84 | CSR11 = 0x58 ; General-purpose timer |
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85 | CSR12 = 0x60 ; General-purpose port |
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86 | CSR13 = 0x68 |
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87 | CSR14 = 0x70 |
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88 | CSR15 = 0x78 ; Watchdog timer |
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89 | |||
90 | ;--------bits/commands of CSR0------------------- |
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91 | CSR0_RESET = 1b |
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92 | |||
93 | CSR0_WIE = 1 shl 24 ; Write and Invalidate Enable |
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94 | CSR0_RLE = 1 shl 23 ; PCI Read Line Enable |
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95 | CSR0_RML = 1 shl 21 ; PCI Read Multiple |
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96 | |||
97 | CSR0_CACHEALIGN_NONE = 00b shl 14 |
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98 | CSR0_CACHEALIGN_32 = 01b shl 14 |
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99 | CSR0_CACHEALIGN_64 = 10b shl 14 |
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100 | CSR0_CACHEALIGN_128 = 11b shl 14 |
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101 | |||
102 | ; using values from linux driver.. |
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103 | CSR0_DEFAULT = CSR0_WIE + CSR0_RLE + CSR0_RML + CSR0_CACHEALIGN_NONE |
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104 | |||
105 | ;------- CSR5 -STATUS- bits -------------------------------- |
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106 | CSR5_TI = 1 shl 0 ; Transmit interupt - frame transmition completed |
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107 | CSR5_TPS = 1 shl 1 ; Transmit process stopped |
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108 | CSR5_TU = 1 shl 2 ; Transmit Buffer unavailable |
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109 | CSR5_TJT = 1 shl 3 ; Transmit Jabber Timeout (transmitter had been excessively active) |
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110 | CSR5_UNF = 1 shl 5 ; Transmit underflow - FIFO underflow |
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111 | CSR5_RI = 1 shl 6 ; Receive Interrupt |
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112 | CSR5_RU = 1 shl 7 ; Receive Buffer unavailable |
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113 | CSR5_RPS = 1 shl 8 ; Receive Process stopped |
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114 | CSR5_RWT = 1 shl 9 ; Receive Watchdow Timeout |
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115 | CSR5_ETI = 1 shl 10 ; Early transmit Interrupt |
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116 | CSR5_GTE = 1 shl 11 ; General Purpose Timer Expired |
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117 | CSR5_FBE = 1 shl 13 ; Fatal bus error |
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118 | CSR5_ERI = 1 shl 14 ; Early receive Interrupt |
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119 | CSR5_AIS = 1 shl 15 ; Abnormal interrupt summary |
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120 | CSR5_NIS = 1 shl 16 ; normal interrupt summary |
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121 | CSR5_RS_SH = 17 ; Receive process state -shift |
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122 | CSR5_RS_MASK = 111b ; -mask |
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123 | CSR5_TS_SH = 20 ; Transmit process state -shift |
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124 | CSR5_TS_MASK = 111b ; -mask |
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125 | CSR5_EB_SH = 23 ; Error bits -shift |
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126 | CSR5_EB_MASK = 111b ; Error bits -mask |
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127 | |||
128 | ;CSR5 TS values |
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129 | CSR5_TS_STOPPED = 000b |
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130 | CSR5_TS_RUNNING_FETCHING_DESC = 001b |
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131 | CSR5_TS_RUNNING_WAITING_TX = 010b |
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132 | CSR5_TS_RUNNING_READING_BUFF = 011b |
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133 | CSR5_TS_RUNNING_SETUP_PCKT = 101b |
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134 | CSR5_TS_SUSPENDED = 110b |
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135 | CSR5_TS_RUNNING_CLOSING_DESC = 111b |
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136 | |||
137 | ;------- CSR6 -OPERATION MODE- bits -------------------------------- |
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138 | CSR6_HP = 1 shl 0 ; Hash/Perfect Receive Filtering mode |
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139 | CSR6_SR = 1 shl 1 ; Start/Stop receive |
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140 | CSR6_HO = 1 shl 2 ; Hash only Filtering mode |
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141 | CSR6_PB = 1 shl 3 ; Pass bad frames |
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142 | CSR6_IF = 1 shl 4 ; Inverse filtering |
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143 | CSR6_SB = 1 shl 5 ; Start/Stop backoff counter |
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144 | CSR6_PR = 1 shl 6 ; Promiscuos mode -default after reset |
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145 | CSR6_PM = 1 shl 7 ; Pass all multicast |
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146 | CSR6_F = 1 shl 9 ; Full Duplex mode |
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147 | CSR6_OM_SH = 10 ; Operating Mode -shift |
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148 | CSR6_OM_MASK = 11b ; -mask |
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149 | CSR6_FC = 1 shl 12 ; Force Collision Mode |
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150 | CSR6_ST = 1 shl 13 ; Start/Stop Transmission Command |
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151 | CSR6_TR_SH = 14 ; Threshold Control -shift |
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152 | CSR6_TR_MASK = 11b ; -mask |
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153 | CSR6_CA = 1 shl 17 ; Capture Effect Enable |
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154 | CSR6_PS = 1 shl 18 ; Port select SRL / MII/SYM |
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155 | CSR6_HBD = 1 shl 19 ; Heartbeat Disable |
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156 | CSR6_SF = 1 shl 21 ; Store and Forward -transmit full packet only |
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157 | CSR6_TTM = 1 shl 22 ; Transmit Threshold Mode - |
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158 | CSR6_PCS = 1 shl 23 ; PCS active and MII/SYM port operates in symbol mode |
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159 | CSR6_SCR = 1 shl 24 ; Scrambler Mode |
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160 | CSR6_MBO = 1 shl 25 ; Must Be One |
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161 | CSR6_RA = 1 shl 30 ; Receive All |
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162 | CSR6_SC = 1 shl 31 ; Special Capture Effect Enable |
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163 | |||
164 | |||
165 | ;------- CSR7 -INTERRUPT ENABLE- bits -------------------------------- |
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166 | CSR7_TI = 1 shl 0 ; transmit Interrupt Enable (set with CSR7<16> & CSR5<0> ) |
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167 | CSR7_TS = 1 shl 1 ; transmit Stopped Enable (set with CSR7<15> & CSR5<1> ) |
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168 | CSR7_TU = 1 shl 2 ; transmit buffer underrun Enable (set with CSR7<16> & CSR5<2> ) |
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169 | CSR7_TJ = 1 shl 3 ; transmit jabber timeout enable (set with CSR7<15> & CSR5<3> ) |
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170 | CSR7_UN = 1 shl 5 ; underflow Interrupt enable (set with CSR7<15> & CSR5<5> ) |
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171 | CSR7_RI = 1 shl 6 ; receive Interrupt enable (set with CSR7<16> & CSR5<5> ) |
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172 | CSR7_RU = 1 shl 7 ; receive buffer unavailable enable (set with CSR7<15> & CSR5<7> ) |
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173 | CSR7_RS = 1 shl 8 ; Receive stopped enable (set with CSR7<15> & CSR5<8> ) |
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174 | CSR7_RW = 1 shl 9 ; receive watchdog timeout enable (set with CSR7<15> & CSR5<9> ) |
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175 | CSR7_ETE = 1 shl 10 ; Early transmit Interrupt enable (set with CSR7<15> & CSR5<10> ) |
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176 | CSR7_GPT = 1 shl 11 ; general purpose timer enable (set with CSR7<15> & CSR5<11> ) |
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177 | CSR7_FBE = 1 shl 13 ; Fatal bus error enable (set with CSR7<15> & CSR5<13> ) |
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178 | CSR7_ERE = 1 shl 14 ; Early receive enable (set with CSR7<16> & CSR5<14> ) |
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179 | CSR7_AI = 1 shl 15 ; Abnormal Interrupt Summary Enable (enables CSR5<0,3,7,8,9,10,13>) |
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180 | CSR7_NI = 1 shl 16 ; Normal Interrup Enable (enables CSR5<0,2,6,11,14>) |
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181 | |||
182 | CSR7_DEFAULT = CSR7_TI + CSR7_TS + CSR7_RI + CSR7_RS + CSR7_TU + CSR7_TJ + CSR7_UN + \ |
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183 | CSR7_RU + CSR7_RW + CSR7_FBE + CSR7_AI + CSR7_NI |
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184 | |||
185 | ;----------- descriptor structure --------------------- |
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186 | struc DES { |
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187 | .status dd ? ; bit 31 is 'own' and rest is 'status' |
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188 | .length dd ? ; control bits + bytes-count buffer 1 + bytes-count buffer 2 |
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189 | .buffer1 dd ? ; pointer to buffer1 |
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190 | .buffer2 dd ? ; pointer to buffer2 or in this case to next descriptor, as we use a chained structure |
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191 | .virtaddr dd ? |
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192 | .size = 64 ; 64, for alignment purposes |
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193 | } |
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194 | |||
195 | virtual at 0 |
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196 | DES DES |
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197 | end virtual |
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198 | |||
199 | ;common to Rx and Tx |
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200 | DES0_OWN = 1 shl 31 ; if set, the NIC controls the descriptor, otherwise driver 'owns' the descriptors |
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201 | |||
202 | ;receive |
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203 | RDES0_ZER = 1 shl 0 ; must be 0 if legal length :D |
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204 | RDES0_CE = 1 shl 1 ; CRC error, valid only on last desc (RDES0<8>=1) |
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205 | RDES0_DB = 1 shl 2 ; dribbling bit - not multiple of 8 bits, valid only on last desc (RDES0<8>=1) |
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206 | RDES0_RE = 1 shl 3 ; Report on MII error.. i dont realy know what this means :P |
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207 | RDES0_RW = 1 shl 4 ; received watchdog timer expiration - must set CSR5<9>, valid only on last desc (RDES0<8>=1) |
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208 | RDES0_FT = 1 shl 5 ; frame type: 0->IEEE802.0 (len<1500) 1-> ETHERNET frame (len>1500), valid only on last desc (RDES0<8>=1) |
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209 | RDES0_CS = 1 shl 6 ; Collision seen, valid only on last desc (RDES0<8>=1) |
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210 | RDES0_TL = 1 shl 7 ; Too long(>1518)-NOT AN ERROR, valid only on last desc (RDES0<8>=1) |
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211 | RDES0_LS = 1 shl 8 ; Last descriptor of current frame |
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212 | RDES0_FS = 1 shl 9 ; First descriptor of current frame |
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213 | RDES0_MF = 1 shl 10 ; Multicast frame, valid only on last desc (RDES0<8>=1) |
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214 | RDES0_RF = 1 shl 11 ; Runt frame, valid only on last desc (RDES0<8>=1) and id overflow |
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215 | RDES0_DT_SERIAL = 00b shl 12 ; Data type-Serial recv frame, valid only on last desc (RDES0<8>=1) |
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216 | RDES0_DT_INTERNAL = 01b shl 12 ; Data type-Internal loopback recv frame, valid only on last desc (RDES0<8>=1) |
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217 | RDES0_DT_EXTERNAL = 11b shl 12 ; Data type-External loopback recv frame, valid only on last desc (RDES0<8>=1) |
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218 | RDES0_DE = 1 shl 14 ; Descriptor error - cant own a new desc and frame doesnt fit, valid only on last desc (RDES0<8>=1) |
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219 | RDES0_ES = 1 shl 15 ; Error Summmary - bits 1+6+11+14, valid only on last desc (RDES0<8>=1) |
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220 | RDES0_FL_SH = 16 ; Field length shift, valid only on last desc (RDES0<8>=1) |
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221 | RDES0_FL_MASK = 11111111111111b ; Field length mask (+CRC), valid only on last desc (RDES0<8>=1) |
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222 | RDES0_FF = 1 shl 30 ; Filtering fail-frame failed address recognition test(must CSR6<30>=1), valid only on last desc (RDES0<8>=1) |
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223 | |||
224 | RDES1_RBS1_MASK = 11111111111b ; first buffer size MASK |
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225 | RDES1_RBS2_SH = 11 ; second buffer size SHIFT |
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226 | RDES1_RBS2_MASK = 11111111111b ; second buffer size MASK |
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227 | RDES1_RCH = 1 shl 24 ; Second address chained - second address (buffer) is next desc address |
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228 | RDES1_RER = 1 shl 25 ; Receive End of Ring - final descriptor, NIC must return to first desc |
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229 | |||
230 | ;transmition |
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231 | TDES0_DE = 1 shl 0 ; Deffered |
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232 | TDES0_UF = 1 shl 1 ; Underflow error |
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233 | TDES0_LF = 1 shl 2 ; Link fail report (only if CSR6<23>=1) |
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234 | TDES0_CC_SH = 3 ; Collision Count shift - no of collision before transmition |
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235 | TDES0_CC_MASK = 1111b ; Collision Count mask |
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236 | TDES0_HF = 1 shl 7 ; Heartbeat fail |
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237 | TDES0_EC = 1 shl 8 ; Excessive Collisions - >16 collisions |
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238 | TDES0_LC = 1 shl 9 ; Late collision |
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239 | TDES0_NC = 1 shl 10 ; No carrier |
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240 | TDES0_LO = 1 shl 11 ; Loss of carrier |
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241 | TDES0_TO = 1 shl 14 ; Transmit Jabber Timeout |
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242 | TDES0_ES = 1 shl 15 ; Error summary TDES0<1+8+9+10+11+14>=1 |
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243 | |||
244 | TDES1_TBS1_MASK = 11111111111b ; Buffer 1 size mask |
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245 | TDES1_TBS2_SH = 11 ; Buffer 2 size shift |
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246 | TDES1_TBS2_MASK = 11111111111b ; Buffer 2 size mask |
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247 | TDES1_FT0 = 1 shl 22 ; Filtering type 0 |
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248 | TDES1_DPD = 1 shl 23 ; Disabled padding for packets <64bytes, no padding |
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249 | TDES1_TCH = 1 shl 24 ; Second address chained - second buffer pointer is to next desc |
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250 | TDES1_TER = 1 shl 25 ; Transmit end of ring - final descriptor |
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251 | TDES1_AC = 1 shl 26 ; Add CRC disable -pretty obvious |
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252 | TDES1_SET = 1 shl 27 ; Setup packet |
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253 | TDES1_FT1 = 1 shl 28 ; Filtering type 1 |
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254 | TDES1_FS = 1 shl 29 ; First segment - buffer is first segment of frame |
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255 | TDES1_LS = 1 shl 30 ; Last segment |
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256 | TDES1_IC = 1 shl 31 ; Interupt on completion (CSR5<0>=1) valid when TDES1<30>=1 |
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257 | |||
258 | MAX_ETH_FRAME_SIZE = 1514 |
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259 | |||
260 | RX_MEM_TOTAL_SIZE = RX_DES_COUNT*(DES.size+RX_BUFF_SIZE) |
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261 | TX_MEM_TOTAL_SIZE = TX_DES_COUNT*(DES.size+TX_BUFF_SIZE) |
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262 | |||
263 | ;============================================================================= |
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264 | ; serial ROM operations |
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265 | ;============================================================================= |
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266 | CSR9_SR = 1 shl 11 ; SROM Select |
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267 | CSR9_RD = 1 shl 14 ; ROM Read Operation |
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268 | CSR9_SROM_DO = 1 shl 3 ; Data Out for SROM |
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269 | CSR9_SROM_DI = 1 shl 2 ; Data In to SROM |
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270 | CSR9_SROM_CK = 1 shl 1 ; clock for SROM |
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271 | CSR9_SROM_CS = 1 shl 0 ; chip select.. always needed |
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272 | |||
273 | ; assume dx is CSR9 |
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274 | macro SROM_Delay { |
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275 | push eax |
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276 | in eax, dx |
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277 | in eax, dx |
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278 | in eax, dx |
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279 | in eax, dx |
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280 | in eax, dx |
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281 | in eax, dx |
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282 | in eax, dx |
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283 | in eax, dx |
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284 | in eax, dx |
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285 | in eax, dx |
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286 | pop eax |
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287 | } |
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288 | |||
289 | ; assume dx is CSR9 |
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290 | macro MDIO_Delay { |
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291 | push eax |
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292 | in eax, dx |
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293 | pop eax |
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294 | } |
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295 | |||
296 | macro Bit_Set a_bit { |
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297 | in eax, dx |
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298 | or eax, a_bit |
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299 | out dx , eax |
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300 | } |
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301 | |||
302 | macro Bit_Clear a_bit { |
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303 | in eax, dx |
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304 | and eax, not (a_bit) |
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305 | out dx, eax |
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306 | } |
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307 | |||
308 | |||
309 | section '.flat' code readable align 16 |
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310 | |||
311 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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312 | ;; ;; |
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313 | ;; proc START ;; |
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314 | ;; ;; |
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315 | ;; (standard driver proc) ;; |
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316 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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317 | |||
318 | align 4 |
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319 | proc START stdcall, state:dword |
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320 | |||
321 | cmp [state], 1 |
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322 | jne .exit |
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323 | |||
324 | .entry: |
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325 | |||
326 | DEBUGF 2,"Loading %s driver\n", my_service |
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327 | stdcall RegService, my_service, service_proc |
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328 | ret |
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329 | |||
330 | .fail: |
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331 | .exit: |
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332 | xor eax, eax |
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333 | ret |
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334 | |||
335 | endp |
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336 | |||
337 | |||
338 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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339 | ;; ;; |
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340 | ;; proc SERVICE_PROC ;; |
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341 | ;; ;; |
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342 | ;; (standard driver proc) ;; |
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343 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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344 | |||
345 | align 4 |
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346 | proc service_proc stdcall, ioctl:dword |
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347 | |||
348 | mov edx, [ioctl] |
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349 | mov eax, [IOCTL.io_code] |
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350 | |||
351 | ;------------------------------------------------------ |
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352 | |||
353 | cmp eax, 0 ;SRV_GETVERSION |
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354 | jne @F |
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355 | |||
356 | cmp [IOCTL.out_size], 4 |
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357 | jb .fail |
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358 | mov eax, [IOCTL.output] |
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359 | mov [eax], dword API_VERSION |
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360 | |||
361 | xor eax, eax |
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362 | ret |
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363 | |||
364 | ;------------------------------------------------------ |
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365 | @@: |
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366 | cmp eax, 1 ;SRV_HOOK |
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367 | jne .fail |
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368 | |||
369 | cmp [IOCTL.inp_size], 3 ; Data input must be at least 3 bytes |
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370 | jb .fail |
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371 | |||
372 | mov eax, [IOCTL.input] |
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373 | cmp byte [eax], 1 ; 1 means device number and bus number (pci) are given |
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374 | jne .fail ; other types arent supported for this card yet |
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375 | |||
376 | ; check if the device is already listed |
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377 | |||
378 | mov esi, device_list |
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379 | mov ecx, [devices] |
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380 | test ecx, ecx |
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381 | jz .firstdevice |
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382 | |||
383 | ; mov eax, [IOCTL.input] ; get the pci bus and device numbers |
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384 | mov ax , [eax+1] ; |
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385 | .nextdevice: |
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386 | mov ebx, [esi] |
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387 | cmp al, byte[device.pci_bus] |
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388 | jne @f |
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389 | cmp ah, byte[device.pci_dev] |
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390 | je .find_devicenum ; Device is already loaded, let's find it's device number |
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391 | @@: |
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392 | add esi, 4 |
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393 | loop .nextdevice |
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394 | |||
395 | |||
396 | ; This device doesnt have its own eth_device structure yet, lets create one |
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397 | .firstdevice: |
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398 | cmp [devices], MAX_DEVICES ; First check if the driver can handle one more card |
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399 | jae .fail |
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400 | |||
401 | push edx |
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402 | stdcall KernelAlloc, dword device.size ; Allocate the buffer for eth_device structure |
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403 | pop edx |
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404 | test eax, eax |
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405 | jz .fail |
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406 | mov ebx, eax ; ebx is always used as a pointer to the structure (in driver, but also in kernel code) |
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407 | |||
408 | ; Fill in the direct call addresses into the struct |
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409 | |||
410 | mov [device.reset], reset |
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411 | mov [device.transmit], transmit |
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412 | mov [device.unload], unload |
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413 | mov [device.name], my_service |
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414 | |||
415 | ; save the pci bus and device numbers |
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416 | |||
417 | mov eax, [IOCTL.input] |
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418 | movzx ecx, byte[eax+1] |
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419 | mov [device.pci_bus], ecx |
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420 | movzx ecx, byte[eax+2] |
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421 | mov [device.pci_dev], ecx |
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422 | |||
423 | ; Now, it's time to find the base io addres of the PCI device |
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424 | |||
425 | PCI_find_io |
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426 | |||
427 | ; We've found the io address, find IRQ now |
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428 | |||
429 | PCI_find_irq |
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430 | |||
431 | DEBUGF 2,"Hooking into device, dev:%x, bus:%x, irq:%x, addr:%x\n",\ |
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432 | [device.pci_dev]:1,[device.pci_bus]:1,[device.irq_line]:1,[device.io_addr]:8 |
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433 | |||
434 | allocate_and_clear [device.rx_p_des], RX_DES_COUNT*(DES.size+RX_BUFF_SIZE), .err |
||
435 | allocate_and_clear [device.tx_p_des], TX_DES_COUNT*(DES.size+TX_BUFF_SIZE), .err |
||
436 | |||
437 | ; Ok, the eth_device structure is ready, let's probe the device |
||
438 | ; Because initialization fires IRQ, IRQ handler must be aware of this device |
||
439 | mov eax, [devices] ; Add the device structure to our device list |
||
440 | mov [device_list+4*eax], ebx ; (IRQ handler uses this list to find device) |
||
441 | inc [devices] ; |
||
442 | |||
443 | call probe ; this function will output in eax |
||
444 | test eax, eax |
||
445 | jnz .err2 ; If an error occured, exit |
||
446 | |||
447 | |||
448 | mov [device.type], NET_TYPE_ETH |
||
449 | call NetRegDev |
||
450 | |||
451 | cmp eax, -1 |
||
452 | je .destroy |
||
453 | |||
454 | ret |
||
455 | |||
456 | ; If the device was already loaded, find the device number and return it in eax |
||
457 | |||
458 | .find_devicenum: |
||
459 | DEBUGF 2,"Trying to find device number of already registered device\n" |
||
460 | call NetPtrToNum ; This kernel procedure converts a pointer to device struct in ebx |
||
461 | ; into a device number in edi |
||
462 | mov eax, edi ; Application wants it in eax instead |
||
463 | DEBUGF 2,"Kernel says: %u\n", eax |
||
464 | ret |
||
465 | |||
466 | ; If an error occured, remove all allocated data and exit (returning -1 in eax) |
||
467 | |||
468 | .destroy: |
||
469 | ; todo: reset device into virgin state |
||
470 | |||
471 | .err2: |
||
472 | dec [devices] |
||
473 | .err: |
||
474 | DEBUGF 2,"removing device structure\n" |
||
475 | stdcall KernelFree, [device.rx_p_des] |
||
476 | stdcall KernelFree, [device.tx_p_des] |
||
477 | stdcall KernelFree, ebx |
||
478 | |||
479 | |||
480 | .fail: |
||
481 | or eax, -1 |
||
482 | ret |
||
483 | |||
484 | ;------------------------------------------------------ |
||
485 | endp |
||
486 | |||
487 | |||
488 | ;;/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\;; |
||
489 | ;; ;; |
||
490 | ;; Actual Hardware dependent code starts here ;; |
||
491 | ;; ;; |
||
492 | ;;/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\;; |
||
493 | |||
494 | |||
495 | |||
496 | align 4 |
||
497 | unload: |
||
498 | ; TODO: (in this particular order) |
||
499 | ; |
||
500 | ; - Stop the device |
||
501 | ; - Detach int handler |
||
502 | ; - Remove device from local list (RTL8139_LIST) |
||
503 | ; - call unregister function in kernel |
||
504 | ; - Remove all allocated structures and buffers the card used |
||
505 | |||
506 | or eax,-1 |
||
507 | |||
508 | ret |
||
509 | |||
510 | |||
511 | macro status { |
||
512 | set_io CSR5 |
||
513 | in eax, dx |
||
514 | DEBUGF 1,"CSR5: %x\n", eax |
||
515 | } |
||
516 | |||
517 | |||
518 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
||
519 | ;; ;; |
||
520 | ;; Probe ;; |
||
521 | ;; ;; |
||
522 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
||
523 | |||
524 | align 4 |
||
525 | probe: |
||
526 | |||
527 | DEBUGF 2,"Probing dec21x4x device: " |
||
528 | |||
529 | PCI_make_bus_master |
||
530 | |||
531 | stdcall PciRead32, [device.pci_bus], [device.pci_dev], 0 ; get device/vendor id |
||
532 | DEBUGF 1,"Vendor id: 0x%x\n", ax |
||
533 | |||
534 | cmp ax, 0x1011 |
||
535 | je .dec |
||
536 | cmp ax, 0x1317 |
||
537 | je .admtek |
||
538 | jmp .notfound |
||
539 | |||
540 | .dec: |
||
541 | shr eax, 16 |
||
542 | DEBUGF 1,"Vendor ok!, device id: 0x%x\n", ax ; TODO: use another method to detect chip! |
||
543 | |||
544 | cmp ax, 0x0009 |
||
545 | je .supported_device |
||
546 | |||
547 | cmp ax, 0x0019 |
||
548 | je .supported_device2 |
||
549 | |||
550 | .admtek: |
||
551 | shr eax, 16 |
||
552 | DEBUGF 1,"Vendor ok!, device id: 0x%x\n", ax |
||
553 | |||
554 | cmp ax, 0x0985 |
||
555 | je .supported_device |
||
556 | |||
557 | .notfound: |
||
558 | DEBUGF 1,"Device not supported!\n" |
||
559 | or eax, -1 |
||
560 | ret |
||
561 | |||
562 | .supported_device2: |
||
563 | |||
564 | ; wake up the 21143 |
||
565 | |||
566 | xor eax, eax |
||
567 | stdcall PciWrite32, [device.pci_bus], [device.pci_dev], 0x40, eax |
||
568 | |||
569 | |||
570 | .supported_device: |
||
571 | call SROM_GetWidth ; TODO: use this value returned in ecx |
||
572 | ; in the read_word routine! |
||
573 | |||
574 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
||
575 | ;; ;; |
||
576 | ;; Reset ;; |
||
577 | ;; ;; |
||
578 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
||
579 | |||
580 | align 4 |
||
581 | reset: |
||
582 | |||
583 | DEBUGF 2,"Resetting dec21x4x\n" |
||
584 | |||
585 | ;----------------------------------------------------------- |
||
586 | ; board software reset - if fails, dont do nothing else |
||
587 | |||
588 | set_io 0 |
||
589 | status |
||
590 | set_io CSR0 |
||
591 | mov eax, CSR0_RESET |
||
592 | out dx, eax |
||
593 | |||
594 | ; wait at least 50 PCI cycles |
||
595 | mov esi, 1000 |
||
596 | call Sleep |
||
597 | |||
598 | ;----------- |
||
599 | ; setup CSR0 |
||
600 | |||
601 | set_io 0 |
||
602 | status |
||
603 | set_io CSR0 |
||
604 | mov eax, CSR0_DEFAULT |
||
605 | out dx, eax |
||
606 | |||
607 | |||
608 | ; wait at least 50 PCI cycles |
||
609 | mov esi, 1000 |
||
610 | call Sleep |
||
611 | |||
612 | ;----------------------------------- |
||
613 | ; Read mac from eeprom to driver ram |
||
614 | |||
615 | call read_mac_eeprom |
||
616 | |||
617 | ;-------------------------------- |
||
618 | ; insert irq handler on given irq |
||
619 | |||
620 | movzx eax, [device.irq_line] |
||
621 | DEBUGF 1,"Attaching int handler to irq %x\n", eax:1 |
||
622 | stdcall AttachIntHandler, eax, int_handler, dword 0 |
||
623 | test eax, eax |
||
624 | jnz @f |
||
4334 | hidnplayr | 625 | DEBUGF 2,"Could not attach int handler!\n" |
3545 | hidnplayr | 626 | ; or eax, -1 |
627 | ; ret |
||
628 | @@: |
||
629 | |||
630 | set_io 0 |
||
631 | status |
||
632 | |||
633 | call init_ring |
||
634 | |||
635 | ;-------------------------------------------- |
||
636 | ; setup CSR3 & CSR4 (pointers to descriptors) |
||
637 | |||
638 | set_io 0 |
||
639 | status |
||
640 | set_io CSR3 |
||
641 | mov eax, [device.rx_p_des] |
||
642 | GetRealAddr |
||
643 | DEBUGF 1,"RX descriptor base address: %x\n", eax |
||
644 | out dx, eax |
||
645 | |||
646 | set_io CSR4 |
||
647 | mov eax, [device.tx_p_des] |
||
648 | GetRealAddr |
||
649 | DEBUGF 1,"TX descriptor base address: %x\n", eax |
||
650 | out dx, eax |
||
651 | |||
652 | ;------------------------------------------------------- |
||
653 | ; setup interrupt mask register -expect IRQs from now on |
||
654 | |||
655 | status |
||
656 | DEBUGF 1,"Enabling interrupts\n" |
||
657 | set_io CSR7 |
||
658 | mov eax, CSR7_DEFAULT |
||
659 | out dx, eax |
||
660 | status |
||
661 | |||
662 | ;---------- |
||
663 | ; enable RX |
||
664 | |||
665 | set_io 0 |
||
666 | status |
||
667 | DEBUGF 1,"Enable RX\n" |
||
668 | |||
669 | set_io CSR6 |
||
670 | Bit_Set CSR6_SR; or CSR6_PR or CSR6_ST |
||
671 | DEBUGF 1,"CSR6: %x\n", eax |
||
672 | |||
673 | status |
||
674 | |||
675 | call start_link |
||
676 | |||
677 | ; wait a bit |
||
3639 | hidnplayr | 678 | mov esi, 500 |
3545 | hidnplayr | 679 | call Sleep |
680 | |||
681 | ;---------------------------------------------------- |
||
682 | ; send setup packet to notify the board about the MAC |
||
683 | |||
684 | call Send_Setup_Packet |
||
685 | |||
686 | xor eax, eax |
||
687 | ; clear packet/byte counters |
||
688 | |||
689 | lea edi, [device.bytes_tx] |
||
690 | mov ecx, 6 |
||
691 | rep stosd |
||
692 | |||
693 | ; Set the mtu, kernel will be able to send now |
||
694 | mov [device.mtu], 1514 |
||
695 | |||
696 | ; Set link state to unknown |
||
697 | mov [device.state], ETH_LINK_UNKOWN |
||
698 | |||
699 | DEBUGF 1,"Reset done\n" |
||
700 | |||
701 | ret |
||
702 | |||
703 | |||
704 | |||
705 | align 4 |
||
706 | init_ring: |
||
707 | |||
708 | ;------------------------------------------ |
||
709 | ; Setup RX descriptors (use chained method) |
||
710 | |||
711 | mov eax, [device.rx_p_des] |
||
712 | GetRealAddr |
||
713 | mov edx, eax |
||
714 | push eax |
||
715 | lea esi, [eax + RX_DES_COUNT*(DES.size)] ; jump over RX descriptors |
||
716 | mov eax, [device.rx_p_des] |
||
717 | add eax, RX_DES_COUNT*(DES.size) ; jump over RX descriptors |
||
718 | mov edi, [device.rx_p_des] |
||
719 | mov ecx, RX_DES_COUNT |
||
720 | .loop_rx_des: |
||
721 | add edx, DES.size |
||
722 | mov [edi + DES.status], DES0_OWN ; hardware owns buffer |
||
723 | mov [edi + DES.length], 1984 + RDES1_RCH ; only size of first buffer, chained buffers |
||
724 | mov [edi + DES.buffer1], esi ; hw buffer address |
||
725 | mov [edi + DES.buffer2], edx ; pointer to next descriptor |
||
726 | mov [edi + DES.virtaddr], eax ; virtual buffer address |
||
727 | DEBUGF 1,"RX desc: buff addr: %x, next desc: %x, real buff addr: %x, real descr addr: %x \n", esi, edx, eax, edi |
||
728 | |||
729 | add esi, RX_BUFF_SIZE |
||
730 | add eax, RX_BUFF_SIZE |
||
731 | add edi, DES.size |
||
732 | dec ecx |
||
733 | jnz .loop_rx_des |
||
734 | |||
735 | ; set last descriptor as LAST |
||
736 | sub edi, DES.size |
||
737 | or [edi + DES.length], RDES1_RER ; EndOfRing |
||
738 | pop [edi + DES.buffer2] ; point it to the first descriptor |
||
739 | |||
740 | ;--------------------- |
||
741 | ; Setup TX descriptors |
||
742 | |||
743 | mov eax, [device.tx_p_des] |
||
744 | GetRealAddr |
||
745 | mov edx, eax |
||
746 | push eax |
||
747 | lea esi, [eax + TX_DES_COUNT*(DES.size)] ; jump over TX descriptors |
||
748 | mov eax, [device.tx_p_des] |
||
749 | add eax, TX_DES_COUNT*(DES.size) ; jump over TX descriptors |
||
750 | mov edi, [device.tx_p_des] |
||
751 | mov ecx, TX_DES_COUNT |
||
752 | .loop_tx_des: |
||
753 | add edx, DES.size |
||
754 | mov [edi + DES.status], 0 ; owned by driver |
||
755 | mov [edi + DES.length], TDES1_TCH ; chained method |
||
756 | mov [edi + DES.buffer1], esi ; pointer to buffer |
||
757 | mov [edi + DES.buffer2], edx ; pointer to next descr |
||
758 | mov [edi + DES.virtaddr], eax |
||
759 | DEBUGF 1,"TX desc: buff addr: %x, next desc: %x, virt buff addr: %x, virt descr addr: %x \n", esi, edx, eax, edi |
||
760 | |||
761 | add esi, TX_BUFF_SIZE |
||
762 | add eax, TX_BUFF_SIZE |
||
763 | add edi, DES.size |
||
764 | dec ecx |
||
765 | jnz .loop_tx_des |
||
766 | |||
767 | ; set last descriptor as LAST |
||
768 | sub edi, DES.size |
||
769 | or [edi + DES.length], TDES1_TER ; EndOfRing |
||
770 | pop [edi + DES.buffer2] ; point it to the first descriptor |
||
771 | |||
772 | ;------------------ |
||
773 | ; Reset descriptors |
||
774 | |||
775 | mov [device.tx_wr_des], 0 |
||
776 | mov [device.tx_rd_des], 0 |
||
777 | mov [device.rx_crt_des], 0 |
||
778 | mov [device.tx_free_des], TX_DES_COUNT |
||
779 | |||
780 | ret |
||
781 | |||
782 | |||
783 | align 4 |
||
784 | start_link: |
||
785 | |||
3639 | hidnplayr | 786 | DEBUGF 1,"Starting link\n" |
787 | |||
3545 | hidnplayr | 788 | ; TODO: write working code here |
789 | |||
790 | ret |
||
791 | |||
792 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
||
793 | ;; ;; |
||
794 | ;; Send setup packet ;; |
||
795 | ;; ;; |
||
796 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
||
797 | |||
798 | align 4 |
||
799 | Send_Setup_Packet: |
||
800 | |||
801 | DEBUGF 1,"Sending setup packet\n" |
||
802 | |||
803 | ; if no descriptors available, out |
||
804 | mov ecx, 1000 |
||
805 | @@loop_wait_desc: |
||
806 | cmp [device.tx_free_des], 0 |
||
807 | jne @f |
||
808 | |||
809 | dec ecx |
||
810 | jnz @@loop_wait_desc |
||
811 | |||
812 | mov eax, -1 |
||
813 | ret |
||
814 | @@: |
||
815 | |||
816 | ; go to current send descriptor |
||
817 | mov edi, [device.tx_p_des] |
||
818 | mov eax, [device.tx_wr_des] |
||
819 | DEBUGF 1,"Got free descriptor: %u (%x)", eax, edi |
||
820 | mov edx, DES.size |
||
821 | mul edx |
||
822 | add edi, eax |
||
823 | DEBUGF 1,"=>%x\n", edi |
||
824 | |||
825 | ; if NOT sending FIRST setup packet, must set current descriptor to 0 size for both buffers, |
||
826 | ; and go to next descriptor for real setup packet... ;; TODO: check if 2 descriptors are available |
||
827 | |||
828 | ; cmp [device.tx_packets], 0 |
||
829 | ; je .first |
||
830 | ; |
||
831 | ; and [edi+DES.des1], 0 |
||
832 | ; mov [edi+DES.des0], DES0_OWN |
||
833 | ; |
||
834 | ; go to next descriptor |
||
835 | ; inc [device.tx_wr_des] |
||
836 | ; and [device.tx_wr_des], TX_DES_COUNT-1 |
||
837 | ; |
||
838 | ; dec free descriptors count |
||
839 | ; cmp [device.tx_free_des], 0 |
||
840 | ; jz @f |
||
841 | ; dec [device.tx_free_des] |
||
842 | ; @@: |
||
843 | ; |
||
844 | ; ; recompute pointer to current descriptor |
||
845 | ; mov edi, [device.tx_p_des] |
||
846 | ; mov eax, [device.tx_wr_des] |
||
847 | ; mov edx, DES.size |
||
848 | ; mul edx |
||
849 | ; add edi, eax |
||
850 | |||
851 | .first: |
||
852 | |||
853 | push edi |
||
854 | ; copy setup packet to current descriptor |
||
855 | mov edi, [edi + DES.virtaddr] |
||
856 | ; copy the address once |
||
857 | lea esi, [device.mac] |
||
858 | DEBUGF 1,"copying packet to %x from %x\n", edi, esi |
||
859 | mov ecx, 3 ; mac is 6 bytes thus 3 words |
||
860 | .loop: |
||
861 | DEBUGF 1,"%x ", [esi]:4 |
||
862 | movsw |
||
863 | inc edi |
||
864 | inc edi |
||
865 | dec ecx |
||
866 | jnz .loop |
||
867 | |||
868 | DEBUGF 1,"\n" |
||
869 | |||
870 | ; copy 15 times the broadcast address |
||
871 | mov ecx, 3*15 |
||
872 | mov eax, 0xffffffff |
||
873 | rep stosd |
||
874 | |||
875 | pop edi |
||
876 | |||
877 | ; setup descriptor |
||
878 | DEBUGF 1,"setting up descriptor\n" |
||
879 | mov [edi + DES.length], TDES1_IC + TDES1_SET + TDES1_TCH + 192 ; size must be EXACTLY 192 bytes |
||
880 | mov [edi + DES.status], DES0_OWN |
||
881 | |||
882 | DEBUGF 1,"status: %x\n", [edi + DES.status]:8 |
||
883 | DEBUGF 1,"length: %x\n", [edi + DES.length]:8 |
||
884 | DEBUGF 1,"buffer1: %x\n", [edi + DES.buffer1]:8 |
||
885 | DEBUGF 1,"buffer2: %x\n", [edi + DES.buffer2]:8 |
||
886 | |||
887 | ; go to next descriptor |
||
888 | inc [device.tx_wr_des] |
||
889 | and [device.tx_wr_des], TX_DES_COUNT-1 |
||
890 | |||
891 | ; dec free descriptors count |
||
892 | cmp [device.tx_free_des], 0 |
||
893 | jz @f |
||
894 | dec [device.tx_free_des] |
||
895 | @@: |
||
896 | |||
897 | ; start tx |
||
898 | set_io 0 |
||
899 | status |
||
900 | set_io CSR6 |
||
901 | in eax, dx |
||
902 | test eax, CSR6_ST ; if NOT started, start now |
||
903 | jnz .already_started |
||
904 | or eax, CSR6_ST |
||
905 | DEBUGF 1,"Starting TX\n" |
||
906 | jmp .do_it |
||
907 | .already_started: |
||
908 | ; if already started, issue a Transmit Poll command |
||
909 | set_io CSR1 |
||
910 | xor eax, eax |
||
911 | DEBUGF 1,"Issuing transmit poll command\n" |
||
912 | .do_it: |
||
913 | out dx, eax |
||
914 | status |
||
915 | |||
916 | DEBUGF 1,"Sending setup packet, completed!\n" |
||
917 | |||
918 | ret |
||
919 | |||
920 | |||
921 | |||
922 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
||
923 | ;; ;; |
||
924 | ;; Transmit ;; |
||
925 | ;; ;; |
||
926 | ;; In: buffer pointer in [esp+4] ;; |
||
927 | ;; size of buffer in [esp+8] ;; |
||
928 | ;; pointer to device structure in ebx ;; |
||
929 | ;; ;; |
||
930 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
||
931 | |||
932 | align 4 |
||
933 | transmit: |
||
934 | |||
935 | DEBUGF 1,"Transmitting packet, buffer:%x, size:%u\n",[esp+4],[esp+8] |
||
936 | mov eax, [esp+4] |
||
937 | DEBUGF 1,"To: %x-%x-%x-%x-%x-%x From: %x-%x-%x-%x-%x-%x Type:%x%x\n",\ |
||
938 | [eax+00]:2,[eax+01]:2,[eax+02]:2,[eax+03]:2,[eax+04]:2,[eax+05]:2,\ |
||
939 | [eax+06]:2,[eax+07]:2,[eax+08]:2,[eax+09]:2,[eax+10]:2,[eax+11]:2,\ |
||
940 | [eax+13]:2,[eax+12]:2 |
||
941 | |||
942 | cmp dword [esp+8], MAX_ETH_FRAME_SIZE |
||
943 | ja .fail |
||
944 | |||
945 | cmp [device.tx_free_des], 0 |
||
946 | je .fail |
||
947 | |||
948 | ;-------------------------- |
||
949 | ; copy packet to crt buffer |
||
950 | |||
951 | mov eax, [device.tx_wr_des] |
||
952 | mov edx, DES.size |
||
953 | mul edx |
||
954 | add eax, [device.tx_p_des] |
||
955 | mov edi, [eax + DES.virtaddr] ; pointer to buffer |
||
956 | mov esi, [esp+4] |
||
957 | mov ecx, [esp+8] |
||
958 | DEBUGF 1,"copying %u bytes from %x to %x\n", ecx, esi, edi |
||
959 | rep movsb |
||
960 | |||
961 | ; set packet size |
||
962 | mov ecx, [eax+DES.length] |
||
963 | and ecx, TDES1_TER ; preserve 'End of Ring' bit |
||
964 | or ecx, [esp+8] ; set size |
||
965 | or ecx, TDES1_FS or TDES1_LS or TDES1_IC or TDES1_TCH ; first descr, last descr, interrupt on complete, chained modus |
||
966 | mov [eax+DES.length], ecx |
||
967 | |||
968 | ; set descriptor info |
||
969 | mov [eax+DES.status], DES0_OWN ; say it is now owned by the 21x4x |
||
970 | |||
971 | ; start tx |
||
972 | set_io 0 |
||
973 | status |
||
974 | set_io CSR6 |
||
975 | in eax, dx |
||
976 | test eax, CSR6_ST ; if NOT started, start now |
||
977 | jnz .already_started |
||
978 | or eax, CSR6_ST |
||
979 | DEBUGF 1,"Starting TX\n" |
||
980 | jmp .do_it |
||
981 | .already_started: |
||
982 | ; if already started, issues a Transmit Poll command |
||
983 | set_io CSR1 |
||
984 | mov eax, -1 |
||
985 | .do_it: |
||
986 | out dx , eax |
||
987 | |||
988 | ; Update stats |
||
989 | |||
990 | inc [device.packets_tx] |
||
991 | mov eax, [esp+8] |
||
992 | add dword [device.bytes_tx], eax |
||
993 | adc dword [device.bytes_tx + 4], 0 |
||
994 | |||
995 | ; go to next descriptor |
||
996 | inc [device.tx_wr_des] |
||
997 | and [device.tx_wr_des], TX_DES_COUNT-1 |
||
998 | |||
999 | ; dec free descriptors count |
||
1000 | test [device.tx_free_des], -1 |
||
1001 | jz .end |
||
1002 | dec [device.tx_free_des] |
||
1003 | .end: |
||
1004 | status |
||
1005 | |||
1006 | DEBUGF 1,"transmit ok\n" |
||
1007 | xor eax, eax |
||
1008 | stdcall KernelFree, [esp+4] |
||
1009 | ret 8 |
||
1010 | |||
1011 | .fail: |
||
1012 | DEBUGF 1,"transmit failed\n" |
||
4334 | hidnplayr | 1013 | stdcall KernelFree, [esp+4] |
3545 | hidnplayr | 1014 | or eax, -1 |
1015 | ret 8 |
||
1016 | |||
1017 | |||
1018 | ;;;;;;;;;;;;;;;;;;;;;;; |
||
1019 | ;; ;; |
||
1020 | ;; Interrupt handler ;; |
||
1021 | ;; ;; |
||
1022 | ;;;;;;;;;;;;;;;;;;;;;;; |
||
1023 | |||
1024 | align 4 |
||
1025 | int_handler: |
||
1026 | |||
1027 | push ebx esi edi |
||
1028 | |||
1029 | DEBUGF 1,"\n%s int\n", my_service |
||
1030 | |||
1031 | ; find pointer of device wich made IRQ occur |
||
1032 | |||
1033 | mov ecx, [devices] |
||
1034 | test ecx, ecx |
||
1035 | jz .nothing |
||
1036 | mov esi, device_list |
||
1037 | .nextdevice: |
||
1038 | mov ebx, [esi] |
||
1039 | |||
1040 | set_io 0 |
||
1041 | set_io CSR5 |
||
3639 | hidnplayr | 1042 | in ax, dx |
1043 | test ax, ax |
||
1044 | out dx, ax ; send it back to ACK |
||
3545 | hidnplayr | 1045 | jnz .got_it |
1046 | .continue: |
||
1047 | add esi, 4 |
||
1048 | dec ecx |
||
1049 | jnz .nextdevice |
||
1050 | .nothing: |
||
1051 | pop edi esi ebx |
||
1052 | xor eax, eax |
||
1053 | |||
1054 | ret ; If no device was found, abort (The irq was probably for a device, not registered to this driver) |
||
1055 | |||
1056 | .got_it: |
||
1057 | |||
1058 | DEBUGF 1,"Device: %x CSR5: %x ", ebx, ax |
||
1059 | |||
1060 | ;---------------------------------- |
||
1061 | ; TX ok? |
||
1062 | |||
1063 | test ax, CSR5_TI |
||
1064 | jz .not_tx |
||
1065 | push ax esi ecx |
||
1066 | |||
1067 | DEBUGF 1,"TX ok!\n" |
||
1068 | |||
1069 | ; go to current descriptor |
||
1070 | mov edi, [device.tx_p_des] |
||
1071 | |||
1072 | mov eax, [device.tx_rd_des] |
||
1073 | mov edx, DES.size |
||
1074 | mul edx |
||
1075 | add edi, eax |
||
1076 | |||
1077 | .loop_tx: |
||
1078 | |||
1079 | ; done if all desc are free |
||
1080 | cmp [device.tx_free_des], TX_DES_COUNT |
||
1081 | jz .end_tx |
||
1082 | |||
1083 | mov eax, [edi+DES.status] |
||
1084 | |||
1085 | ; we stop at first desc that is owned be NIC |
||
1086 | test eax, DES0_OWN |
||
1087 | jnz .end_tx |
||
1088 | |||
1089 | ; detect is setup packet |
||
1090 | cmp eax, (0ffffffffh - DES0_OWN) ; all other bits are 1 |
||
1091 | jne .not_setup_packet |
||
1092 | DEBUGF 1,"Setup Packet detected\n" |
||
1093 | .not_setup_packet: |
||
1094 | |||
1095 | DEBUGF 1,"packet status: %x\n", eax |
||
1096 | |||
1097 | ; next descriptor |
||
1098 | add edi, DES.size |
||
1099 | inc [device.tx_rd_des] |
||
1100 | and [device.tx_rd_des], TX_DES_COUNT-1 |
||
1101 | |||
1102 | ; inc free desc |
||
1103 | inc [device.tx_free_des] |
||
1104 | cmp [device.tx_free_des], TX_DES_COUNT |
||
1105 | jbe @f |
||
1106 | mov [device.tx_free_des], TX_DES_COUNT |
||
1107 | @@: |
||
1108 | |||
1109 | jmp .loop_tx |
||
1110 | .end_tx: |
||
1111 | |||
1112 | ;------------------------------------------------------ |
||
1113 | ; here must be called standard Ethernet Tx Irq Handler |
||
1114 | ;------------------------------------------------------ |
||
1115 | |||
1116 | pop ecx esi ax |
||
1117 | |||
1118 | ;---------------------------------- |
||
1119 | ; RX irq |
||
1120 | .not_tx: |
||
1121 | test ax, CSR5_RI |
||
1122 | jz .not_rx |
||
1123 | push ax esi ecx |
||
1124 | |||
1125 | DEBUGF 1,"RX ok!\n" |
||
1126 | |||
1127 | push ebx |
||
1128 | .rx_loop: |
||
1129 | pop ebx |
||
1130 | |||
1131 | ; get current descriptor |
||
1132 | mov edi, [device.rx_p_des] |
||
1133 | mov eax, [device.rx_crt_des] |
||
1134 | mov edx, DES.size |
||
1135 | mul edx |
||
1136 | add edi, eax |
||
1137 | |||
1138 | ; now check status |
||
1139 | mov eax, [edi + DES.status] |
||
1140 | |||
1141 | test eax, DES0_OWN |
||
1142 | jnz .end_rx ; current desc is busy, nothing to do |
||
1143 | |||
1144 | test eax, RDES0_FS |
||
1145 | jz .end_rx ; current desc is NOT first packet, ERROR! |
||
1146 | |||
1147 | test eax, RDES0_LS ; if not last desc of packet, error for now |
||
1148 | jz .end_rx |
||
1149 | |||
1150 | test eax, RDES0_ES |
||
1151 | jnz .end_rx |
||
1152 | |||
1153 | mov esi, [edi + DES.virtaddr] |
||
1154 | mov ecx, [edi + DES.status] |
||
1155 | shr ecx, RDES0_FL_SH |
||
1156 | and ecx, RDES0_FL_MASK |
||
1157 | sub ecx, 4 ; crc, we dont need it |
||
1158 | |||
1159 | DEBUGF 1,"Received packet!, size=%u, addr:%x\n", ecx, esi |
||
1160 | |||
1161 | push esi edi ecx |
||
1162 | stdcall KernelAlloc, ecx ; Allocate a buffer to put packet into |
||
1163 | pop ecx edi esi |
||
1164 | test eax, eax |
||
1165 | jz .fail |
||
1166 | |||
1167 | push ebx |
||
1168 | push dword .rx_loop |
||
1169 | push ecx eax |
||
1170 | mov edi, eax |
||
1171 | |||
1172 | ; update statistics |
||
1173 | inc [device.packets_rx] |
||
1174 | add dword [device.bytes_rx], ecx |
||
1175 | adc dword [device.bytes_rx + 4], 0 |
||
1176 | |||
1177 | ; copy packet data |
||
1178 | shr cx , 1 |
||
1179 | jnc .nb |
||
1180 | movsb |
||
1181 | .nb: |
||
1182 | shr cx , 1 |
||
1183 | jnc .nw |
||
1184 | movsw |
||
1185 | .nw: |
||
1186 | rep movsd |
||
1187 | |||
1188 | mov [edi + DES.status], DES0_OWN ; free descriptor |
||
1189 | |||
1190 | inc [device.rx_crt_des] ; next descriptor |
||
1191 | and [device.rx_crt_des], RX_DES_COUNT-1 |
||
1192 | |||
1193 | jmp Eth_input |
||
1194 | |||
1195 | .end_rx: |
||
1196 | .fail: |
||
1197 | pop ecx esi ax |
||
1198 | .not_rx: |
||
1199 | |||
1200 | pop edi esi ebx |
||
1201 | ret |
||
1202 | |||
1203 | |||
1204 | |||
1205 | align 4 |
||
1206 | write_mac: ; in: mac pushed onto stack (as 3 words) |
||
1207 | |||
1208 | DEBUGF 2,"Writing MAC: " |
||
1209 | |||
1210 | ; write data into driver cache |
||
1211 | mov esi, esp |
||
1212 | lea edi, [device.mac] |
||
1213 | movsd |
||
1214 | movsw |
||
1215 | add esp, 6 |
||
1216 | |||
1217 | ; send setup packet (only if driver is started) |
||
1218 | call Send_Setup_Packet |
||
1219 | |||
1220 | align 4 |
||
1221 | read_mac: |
||
1222 | |||
1223 | DEBUGF 1,"Read_mac\n" |
||
1224 | |||
1225 | ret |
||
1226 | |||
1227 | |||
1228 | |||
1229 | align 4 |
||
1230 | read_mac_eeprom: |
||
1231 | |||
1232 | DEBUGF 1,"Read_mac_eeprom\n" |
||
1233 | |||
1234 | lea edi, [device.mac] |
||
1235 | mov esi, 20/2 ; read words, start address is 20 |
||
1236 | .loop: |
||
1237 | push esi edi |
||
1238 | call SROM_Read_Word |
||
1239 | pop edi esi |
||
1240 | stosw |
||
1241 | inc esi |
||
1242 | cmp esi, 26/2 |
||
1243 | jb .loop |
||
1244 | |||
1245 | DEBUGF 2,"%x-%x-%x-%x-%x-%x\n",[edi-6]:2,[edi-5]:2,[edi-4]:2,[edi-3]:2,[edi-2]:2,[edi-1]:2 |
||
1246 | |||
1247 | ret |
||
1248 | |||
1249 | align 4 |
||
1250 | write_mac_eeprom: |
||
1251 | |||
1252 | DEBUGF 1,"Write_mac_eeprom\n" |
||
1253 | |||
1254 | ret |
||
1255 | |||
1256 | |||
1257 | align 4 |
||
1258 | SROM_GetWidth: ; should be 6 or 8 according to some manuals (returns in ecx) |
||
1259 | |||
1260 | DEBUGF 1,"SROM_GetWidth\n" |
||
1261 | |||
1262 | call SROM_Idle |
||
1263 | call SROM_EnterAccessMode |
||
1264 | |||
1265 | ; set_io 0 |
||
1266 | ; set_io CSR9 |
||
1267 | |||
1268 | ; send 110b |
||
1269 | |||
1270 | in eax, dx |
||
1271 | or eax, CSR9_SROM_DI |
||
1272 | call SROM_out |
||
1273 | |||
1274 | in eax, dx |
||
1275 | or eax, CSR9_SROM_DI |
||
1276 | call SROM_out |
||
1277 | |||
1278 | in eax, dx |
||
1279 | and eax, not (CSR9_SROM_DI) |
||
1280 | call SROM_out |
||
1281 | |||
1282 | mov ecx,1 |
||
1283 | .loop2: |
||
1284 | Bit_Set CSR9_SROM_CK |
||
1285 | SROM_Delay |
||
1286 | |||
1287 | in eax, dx |
||
1288 | and eax, CSR9_SROM_DO |
||
1289 | jnz .not_zero |
||
1290 | |||
1291 | Bit_Clear CSR9_SROM_CK |
||
1292 | SROM_Delay |
||
1293 | jmp .end_loop2 |
||
1294 | .not_zero: |
||
1295 | |||
1296 | Bit_Clear CSR9_SROM_CK |
||
1297 | SROM_Delay |
||
1298 | |||
1299 | inc ecx |
||
1300 | cmp ecx, 12 |
||
1301 | jbe .loop2 |
||
1302 | .end_loop2: |
||
1303 | |||
1304 | DEBUGF 1,"Srom width=%u\n", ecx |
||
1305 | |||
1306 | call SROM_Idle |
||
1307 | call SROM_EnterAccessMode |
||
1308 | call SROM_Idle |
||
1309 | |||
1310 | ret |
||
1311 | |||
1312 | |||
1313 | align 4 |
||
1314 | SROM_out: |
||
1315 | |||
1316 | out dx, eax |
||
1317 | SROM_Delay |
||
1318 | Bit_Set CSR9_SROM_CK |
||
1319 | SROM_Delay |
||
1320 | Bit_Clear CSR9_SROM_CK |
||
1321 | SROM_Delay |
||
1322 | |||
1323 | ret |
||
1324 | |||
1325 | |||
1326 | |||
1327 | align 4 |
||
1328 | SROM_EnterAccessMode: |
||
1329 | |||
1330 | DEBUGF 1,"SROM_EnterAccessMode\n" |
||
1331 | |||
1332 | set_io 0 |
||
1333 | set_io CSR9 |
||
1334 | mov eax, CSR9_SR |
||
1335 | out dx, eax |
||
1336 | SROM_Delay |
||
1337 | |||
1338 | Bit_Set CSR9_RD |
||
1339 | SROM_Delay |
||
1340 | |||
1341 | Bit_Clear CSR9_SROM_CK |
||
1342 | SROM_Delay |
||
1343 | |||
1344 | Bit_Set CSR9_SROM_CS |
||
1345 | SROM_Delay |
||
1346 | |||
1347 | ret |
||
1348 | |||
1349 | |||
1350 | |||
1351 | align 4 |
||
1352 | SROM_Idle: |
||
1353 | |||
1354 | DEBUGF 1,"SROM_Idle\n" |
||
1355 | |||
1356 | call SROM_EnterAccessMode |
||
1357 | |||
1358 | ; set_io 0 |
||
1359 | ; set_io CSR9 |
||
1360 | |||
1361 | mov ecx, 25 |
||
1362 | .loop_clk: |
||
1363 | |||
1364 | Bit_Clear CSR9_SROM_CK |
||
1365 | SROM_Delay |
||
1366 | Bit_Set CSR9_SROM_CK |
||
1367 | SROM_Delay |
||
1368 | |||
1369 | dec ecx |
||
1370 | jnz .loop_clk |
||
1371 | |||
1372 | |||
1373 | Bit_Clear CSR9_SROM_CK |
||
1374 | SROM_Delay |
||
1375 | Bit_Clear CSR9_SROM_CS |
||
1376 | SROM_Delay |
||
1377 | |||
1378 | xor eax, eax |
||
1379 | out dx, eax |
||
1380 | |||
1381 | ret |
||
1382 | |||
1383 | |||
1384 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
||
1385 | ;; ;; |
||
1386 | ;; Read serial EEprom word ;; |
||
1387 | ;; ;; |
||
1388 | ;; In: esi = read address ;; |
||
1389 | ;; OUT: ax = data word ;; |
||
1390 | ;; ;; |
||
1391 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
||
1392 | align 4 |
||
1393 | SROM_Read_Word: |
||
1394 | |||
1395 | DEBUGF 1,"SROM_Read_word at: %x result: ", esi |
||
1396 | |||
1397 | set_io 0 |
||
1398 | set_io CSR9 |
||
1399 | |||
1400 | ; enter access mode |
||
1401 | mov eax, CSR9_SR + CSR9_RD |
||
1402 | out dx , eax |
||
1403 | or eax, CSR9_SROM_CS |
||
1404 | out dx , eax |
||
1405 | |||
1406 | ; TODO: change this hard-coded 6-bit stuff to use value from srom_getwidth |
||
1407 | |||
1408 | ; send read command "110b" + address to read from |
||
1409 | and esi, 111111b |
||
1410 | or esi, 110b shl 6 |
||
1411 | |||
1412 | mov ecx, 1 shl 9 |
||
1413 | .loop_cmd: |
||
1414 | mov eax, CSR9_SR + CSR9_RD + CSR9_SROM_CS |
||
1415 | test esi, ecx |
||
1416 | jz @f |
||
1417 | or eax, CSR9_SROM_DI |
||
1418 | @@: |
||
1419 | out dx , eax |
||
1420 | SROM_Delay |
||
1421 | or eax, CSR9_SROM_CK |
||
1422 | out dx , eax |
||
1423 | SROM_Delay |
||
1424 | |||
1425 | shr ecx, 1 |
||
1426 | jnz .loop_cmd |
||
1427 | |||
1428 | ; read data from SROM |
||
1429 | |||
1430 | xor esi, esi |
||
1431 | mov ecx, 17 ;;; TODO: figure out why 17, not 16 |
||
1432 | .loop_read: |
||
1433 | |||
1434 | mov eax, CSR9_SR + CSR9_RD + CSR9_SROM_CS + CSR9_SROM_CK |
||
1435 | out dx , eax |
||
1436 | SROM_Delay |
||
1437 | |||
1438 | in eax, dx |
||
1439 | and eax, CSR9_SROM_DO |
||
1440 | shr eax, 3 |
||
1441 | shl esi, 1 |
||
1442 | or esi, eax |
||
1443 | |||
1444 | mov eax, CSR9_SR + CSR9_RD + CSR9_SROM_CS |
||
1445 | out dx , eax |
||
1446 | SROM_Delay |
||
1447 | |||
1448 | dec ecx |
||
1449 | jnz .loop_read |
||
1450 | |||
1451 | mov eax, esi |
||
1452 | |||
1453 | DEBUGF 1,"%x\n", ax |
||
1454 | |||
1455 | ret |
||
1456 | |||
1457 | |||
1458 | |||
1459 | |||
1460 | |||
1461 | |||
1462 | |||
1463 | ;<<<<<<<<<<<<<<<<<<<<<<<<<<<< |
||
1464 | |||
1465 | |||
1466 | |||
1467 | ;********************************************************************* |
||
1468 | ;* Media Descriptor Code * |
||
1469 | ;********************************************************************* |
||
1470 | |||
1471 | ; MII transceiver control section. |
||
1472 | ; Read and write the MII registers using software-generated serial |
||
1473 | ; MDIO protocol. See the MII specifications or DP83840A data sheet |
||
1474 | ; for details. |
||
1475 | |||
1476 | ; The maximum data clock rate is 2.5 Mhz. The minimum timing is usually |
||
1477 | ; met by back-to-back PCI I/O cycles, but we insert a delay to avoid |
||
1478 | ; "overclocking" issues or future 66Mhz PCI. |
||
1479 | |||
1480 | ; Read and write the MII registers using software-generated serial |
||
1481 | ; MDIO protocol. It is just different enough from the EEPROM protocol |
||
1482 | ; to not share code. The maxium data clock rate is 2.5 Mhz. |
||
1483 | |||
1484 | MDIO_SHIFT_CLK = 0x10000 |
||
1485 | MDIO_DATA_WRITE0 = 0x00000 |
||
1486 | MDIO_DATA_WRITE1 = 0x20000 |
||
1487 | MDIO_ENB = 0x00000 ; Ignore the 0x02000 databook setting. |
||
1488 | MDIO_ENB_IN = 0x40000 |
||
1489 | MDIO_DATA_READ = 0x80000 |
||
1490 | |||
1491 | ; MII transceiver control section. |
||
1492 | ; Read and write the MII registers using software-generated serial |
||
1493 | ; MDIO protocol. See the MII specifications or DP83840A data sheet |
||
1494 | ; for details. |
||
1495 | |||
1496 | align 4 |
||
1497 | mdio_read: ; phy_id:edx, location:esi |
||
1498 | |||
1499 | DEBUGF 1,"mdio read, phy=%x, location=%x", edx, esi |
||
1500 | |||
1501 | shl edx, 5 |
||
1502 | or esi, edx |
||
1503 | or esi, 0xf6 shl 10 |
||
1504 | |||
1505 | set_io 0 |
||
1506 | set_io CSR9 |
||
1507 | |||
1508 | ; if (tp->chip_id == LC82C168) { |
||
1509 | ; int i = 1000; |
||
1510 | ; outl(0x60020000 + (phy_id<<23) + (location<<18), ioaddr + 0xA0); |
||
1511 | ; inl(ioaddr + 0xA0); |
||
1512 | ; inl(ioaddr + 0xA0); |
||
1513 | ; while (--i > 0) |
||
1514 | ; if ( ! ((retval = inl(ioaddr + 0xA0)) & 0x80000000)) |
||
1515 | ; return retval & 0xffff; |
||
1516 | ; return 0xffff; |
||
1517 | ; } |
||
1518 | ; |
||
1519 | ; if (tp->chip_id == COMET) { |
||
1520 | ; if (phy_id == 1) { |
||
1521 | ; if (location < 7) |
||
1522 | ; return inl(ioaddr + 0xB4 + (location<<2)); |
||
1523 | ; else if (location == 17) |
||
1524 | ; return inl(ioaddr + 0xD0); |
||
1525 | ; else if (location >= 29 && location <= 31) |
||
1526 | ; return inl(ioaddr + 0xD4 + ((location-29)<<2)); |
||
1527 | ; } |
||
1528 | ; return 0xffff; |
||
1529 | ; } |
||
1530 | |||
1531 | ; Establish sync by sending at least 32 logic ones. |
||
1532 | |||
1533 | mov ecx, 32 |
||
1534 | .loop: |
||
1535 | mov eax, MDIO_ENB or MDIO_DATA_WRITE1 |
||
1536 | out dx, eax |
||
1537 | MDIO_Delay |
||
1538 | |||
1539 | or eax, MDIO_SHIFT_CLK |
||
1540 | out dx, eax |
||
1541 | MDIO_Delay |
||
1542 | |||
1543 | dec ecx |
||
1544 | jnz .loop |
||
1545 | |||
1546 | |||
1547 | ; Shift the read command bits out. |
||
1548 | |||
1549 | mov ecx, 1 shl 15 |
||
1550 | .loop2: |
||
1551 | mov eax, MDIO_ENB |
||
1552 | test esi, ecx |
||
1553 | jz @f |
||
1554 | or eax, MDIO_DATA_WRITE1 |
||
1555 | @@: |
||
1556 | out dx, eax |
||
1557 | MDIO_Delay |
||
1558 | |||
1559 | or eax, MDIO_SHIFT_CLK |
||
1560 | out dx, eax |
||
1561 | MDIO_Delay |
||
1562 | |||
1563 | shr ecx, 1 |
||
1564 | jnz .loop2 |
||
1565 | |||
1566 | |||
1567 | ; Read the two transition, 16 data, and wire-idle bits. |
||
1568 | |||
1569 | xor esi, esi |
||
1570 | mov ecx, 19 |
||
1571 | .loop3: |
||
1572 | mov eax, MDIO_ENB_IN |
||
1573 | out dx, eax |
||
1574 | MDIO_Delay |
||
1575 | |||
1576 | shl esi, 1 |
||
1577 | in eax, dx |
||
1578 | test eax, MDIO_DATA_READ |
||
1579 | jz @f |
||
1580 | inc esi |
||
1581 | @@: |
||
1582 | |||
1583 | mov eax, MDIO_ENB_IN or MDIO_SHIFT_CLK |
||
1584 | out dx, eax |
||
1585 | MDIO_Delay |
||
1586 | |||
1587 | dec ecx |
||
1588 | jnz .loop3 |
||
1589 | |||
1590 | shr esi, 1 |
||
1591 | movzx eax, si |
||
1592 | |||
1593 | DEBUGF 1,", data=%x\n", ax |
||
1594 | |||
1595 | ret |
||
1596 | |||
1597 | |||
1598 | |||
1599 | |||
1600 | align 4 |
||
1601 | mdio_write: ;int phy_id: edx, int location: edi, int value: ax) |
||
1602 | |||
1603 | DEBUGF 1,"mdio write, phy=%x, location=%x, data=%x\n", edx, edi, ax |
||
1604 | |||
1605 | shl edi, 18 |
||
1606 | or edi, 0x5002 shl 16 |
||
1607 | shl edx, 23 |
||
1608 | or edi, edx |
||
1609 | mov di, ax |
||
1610 | |||
1611 | set_io 0 |
||
1612 | set_io CSR9 |
||
1613 | |||
1614 | ; if (tp->chip_id == LC82C168) { |
||
1615 | ; int i = 1000; |
||
1616 | ; outl(cmd, ioaddr + 0xA0); |
||
1617 | ; do |
||
1618 | ; if ( ! (inl(ioaddr + 0xA0) & 0x80000000)) |
||
1619 | ; break; |
||
1620 | ; while (--i > 0); |
||
1621 | ; return; |
||
1622 | ; } |
||
1623 | |||
1624 | ; if (tp->chip_id == COMET) { |
||
1625 | ; if (phy_id != 1) |
||
1626 | ; return; |
||
1627 | ; if (location < 7) |
||
1628 | ; outl(value, ioaddr + 0xB4 + (location<<2)); |
||
1629 | ; else if (location == 17) |
||
1630 | ; outl(value, ioaddr + 0xD0); |
||
1631 | ; else if (location >= 29 && location <= 31) |
||
1632 | ; outl(value, ioaddr + 0xD4 + ((location-29)<<2)); |
||
1633 | ; return; |
||
1634 | ; } |
||
1635 | |||
1636 | |||
1637 | ; Establish sync by sending at least 32 logic ones. |
||
1638 | |||
1639 | mov ecx, 32 |
||
1640 | .loop: |
||
1641 | mov eax, MDIO_ENB or MDIO_DATA_WRITE1 |
||
1642 | out dx, eax |
||
1643 | MDIO_Delay |
||
1644 | |||
1645 | or eax, MDIO_SHIFT_CLK |
||
1646 | out dx, eax |
||
1647 | MDIO_Delay |
||
1648 | |||
1649 | dec ecx |
||
1650 | jnz .loop |
||
1651 | |||
1652 | |||
1653 | ; Shift the command bits out. |
||
1654 | |||
1655 | mov ecx, 1 shl 31 |
||
1656 | .loop2: |
||
1657 | mov eax, MDIO_ENB |
||
1658 | test edi, ecx |
||
1659 | jz @f |
||
1660 | or eax, MDIO_DATA_WRITE1 |
||
1661 | @@: |
||
1662 | out dx, eax |
||
1663 | MDIO_Delay |
||
1664 | |||
1665 | or eax, MDIO_SHIFT_CLK |
||
1666 | out dx, eax |
||
1667 | MDIO_Delay |
||
1668 | |||
1669 | shr ecx, 1 |
||
1670 | jnz .loop2 |
||
1671 | |||
1672 | |||
1673 | ; Clear out extra bits. |
||
1674 | |||
1675 | mov ecx, 2 |
||
1676 | .loop3: |
||
1677 | mov eax, MDIO_ENB |
||
1678 | out dx, eax |
||
1679 | MDIO_Delay |
||
1680 | |||
1681 | or eax, MDIO_SHIFT_CLK |
||
1682 | out dx, eax |
||
1683 | MDIO_Delay |
||
1684 | |||
1685 | dec ecx |
||
1686 | jnz .loop3 |
||
1687 | |||
1688 | ret |
||
1689 | |||
1690 | |||
1691 | ; End of code |
||
1692 | align 4 ; Place all initialised data here |
||
1693 | |||
1694 | devices dd 0 |
||
1695 | version dd (DRIVER_VERSION shl 16) or (API_VERSION and 0xFFFF) |
||
1696 | my_service db 'DEC21X4X',0 ; max 16 chars include zero |
||
1697 | |||
1698 | include_debug_strings ; All data wich FDO uses will be included here |
||
1699 | |||
1700 | section '.data' data readable writable align 16 ; place all uninitialized data place here |
||
1701 | |||
1702 | device_list rd MAX_DEVICES ; This list contains all pointers to device structures the driver is handling2)); |
||
1703 | |||
1704 |