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Rev | Author | Line No. | Line |
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2288 | clevermous | 1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ;; ;; |
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2455 | mario79 | 3 | ;; Copyright (C) KolibriOS team 2004-2011. All rights reserved. ;; |
2288 | clevermous | 4 | ;; Distributed under terms of the GNU General Public License ;; |
5 | ;; ;; |
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6 | ;; ;; |
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7 | ;; I8255X.INC ;; |
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8 | ;; ;; |
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9 | ;; Ethernet driver for Menuet OS ;; |
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10 | ;; ;; |
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11 | ;; Version 0.3 11 August 2003 ;; |
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12 | ;; ;; |
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13 | ;; This driver is based on the eepro100 driver from ;; |
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14 | ;; the etherboot 5.0.6 project. The copyright statement is ;; |
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15 | ;; ;; |
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16 | ;; GNU GENERAL PUBLIC LICENSE ;; |
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17 | ;; Version 2, June 1991 ;; |
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18 | ;; ;; |
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19 | ;; remaining parts Copyright 2002 Mike Hibbett, ;; |
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20 | ;; mikeh@oceanfree.net ;; |
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21 | ;; ;; |
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22 | ;; See file COPYING for details ;; |
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23 | ;; ;; |
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24 | ;; ;; |
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25 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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26 | |||
27 | $Revision: 2455 $ |
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28 | |||
29 | |||
30 | ;******************************************************************** |
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31 | ; Interface |
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32 | ; I8255x_reset |
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33 | ; I8255x_probe |
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34 | ; I8255x_poll |
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35 | ; I8255x_transmit |
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36 | ; |
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37 | ; These functions are referenced in ethernet.inc |
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38 | ; |
||
39 | ;******************************************************************** |
||
40 | |||
41 | |||
42 | rxfd_status equ eth_data_start |
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43 | rxfd_command equ eth_data_start + 2 |
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44 | rxfd_link equ eth_data_start + 4 |
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45 | rxfd_rx_buf_addr equ eth_data_start + 8 |
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46 | rxfd_count equ eth_data_start + 12 |
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47 | rxfd_size equ eth_data_start + 14 |
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48 | rxfd_packet equ eth_data_start + 16 |
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49 | |||
50 | |||
51 | |||
52 | uglobal |
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53 | eeprom_data: |
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54 | times 16 dd 0 |
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55 | |||
56 | align 4 |
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57 | |||
58 | lstats: |
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59 | tx_good_frames: |
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60 | dd 0 |
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61 | tx_coll16_errs: |
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62 | dd 0 |
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63 | tx_late_colls: |
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64 | dd 0 |
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65 | tx_underruns: |
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66 | dd 0 |
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67 | tx_lost_carrier: |
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68 | dd 0 |
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69 | tx_deferred: |
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70 | dd 0 |
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71 | tx_one_colls: |
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72 | dd 0 |
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73 | tx_multi_colls: |
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74 | dd 0 |
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75 | tx_total_colls: |
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76 | dd 0 |
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77 | rx_good_frames: |
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78 | dd 0 |
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79 | rx_crc_errs: |
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80 | dd 0 |
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81 | rx_align_errs: |
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82 | dd 0 |
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83 | rx_resource_errs: |
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84 | dd 0 |
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85 | rx_overrun_errs: |
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86 | dd 0 |
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87 | rx_colls_errs: |
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88 | dd 0 |
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89 | rx_runt_errs: |
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90 | dd 0 |
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91 | done_marker: |
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92 | dd 0 |
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93 | |||
94 | align 4 |
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95 | |||
96 | confcmd: |
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97 | confcmd_status: |
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98 | dw 0 |
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99 | confcmd_command: |
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100 | dw 0 |
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101 | confcmd_link: |
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102 | dd 0 |
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103 | endg |
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104 | |||
105 | iglobal |
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106 | confcmd_data: |
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107 | db 22, 0x08, 0, 0, 0, 0x80, 0x32, 0x03, 1 |
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108 | db 0, 0x2e, 0, 0x60, 0, 0xf2, 0x48, 0, 0x40, 0xf2 |
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109 | db 0x80, 0x3f, 0x05 |
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110 | endg |
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111 | |||
112 | uglobal |
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113 | align 4 |
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114 | |||
115 | txfd: |
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116 | txfd_status: |
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117 | dw 0 |
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118 | txfd_command: |
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119 | dw 0 |
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120 | txfd_link: |
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121 | dd 0 |
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122 | txfd_tx_desc_addr: |
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123 | dd 0 |
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124 | txfd_count: |
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125 | dd 0 |
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126 | txfd_tx_buf_addr0: |
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127 | dd 0 |
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128 | txfd_tx_buf_size0: |
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129 | dd 0 |
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130 | txfd_tx_buf_addr1: |
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131 | dd 0 |
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132 | txfd_tx_buf_size1: |
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133 | dd 0 |
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134 | |||
135 | align 4 |
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136 | |||
137 | hdr: |
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138 | hdr_dst_addr: |
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139 | times 6 db 0 |
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140 | hdr_src_addr: |
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141 | times 6 db 0 |
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142 | hdr_type: |
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143 | dw 0 |
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144 | endg |
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145 | |||
146 | |||
147 | ;*************************************************************************** |
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148 | ; Function |
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149 | ; wait_for_cmd_done |
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150 | ; |
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151 | ; Description |
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152 | ; waits for the hardware to complete a command |
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153 | ; port address in edx |
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154 | ; |
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155 | ; al destroyed |
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156 | ;*************************************************************************** |
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157 | wait_for_cmd_done: |
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158 | in al, dx |
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159 | cmp al, 0 |
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160 | jne wait_for_cmd_done |
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161 | ret |
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162 | |||
163 | |||
164 | |||
165 | ;*************************************************************************** |
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166 | ; Function |
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167 | ; mdio_read |
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168 | ; |
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169 | ; Description |
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170 | ; This probably reads a register in the "physical media interface chip" |
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171 | ; Phy_id in ebx |
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172 | ; location in ecx |
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173 | ; |
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174 | ; Data returned in eax |
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175 | ; |
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176 | ;*************************************************************************** |
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177 | mdio_read: |
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178 | mov edx, [io_addr] |
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179 | add edx, 16 ; SCBCtrlMDI |
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180 | |||
181 | mov eax, 0x08000000 |
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182 | shl ecx, 16 |
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183 | or eax, ecx |
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184 | shl ebx, 21 |
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185 | or eax, ebx |
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186 | |||
187 | out dx, eax |
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188 | |||
189 | mrlp: |
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190 | call delay_us |
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191 | in eax, dx |
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192 | mov ecx, eax |
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193 | and ecx, 0x10000000 |
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194 | jz mrlp |
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195 | |||
196 | and eax, 0xffff |
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197 | ret |
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198 | |||
199 | |||
200 | |||
201 | ;*************************************************************************** |
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202 | ; Function |
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203 | ; mdio_write |
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204 | ; |
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205 | ; Description |
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206 | ; This probably writes a register in the "physical media interface chip" |
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207 | ; Phy_id in ebx |
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208 | ; location in ecx |
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209 | ; data in edx |
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210 | ; Data returned in eax |
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211 | ; |
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212 | ;*************************************************************************** |
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213 | mdio_write: |
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214 | mov eax, 0x04000000 |
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215 | shl ecx, 16 |
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216 | or eax, ecx |
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217 | shl ebx, 21 |
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218 | or eax, ebx |
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219 | or eax, edx |
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220 | |||
221 | mov edx, [io_addr] |
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222 | add edx, 16 ; SCBCtrlMDI |
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223 | out dx, eax |
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224 | |||
225 | mwlp: |
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226 | call delay_us |
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227 | in eax, dx |
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228 | mov ecx, eax |
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229 | and ecx, 0x10000000 |
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230 | jz mwlp |
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231 | |||
232 | and eax, 0xffff |
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233 | ret |
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234 | |||
235 | |||
236 | |||
237 | ;/***********************************************************************/ |
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238 | ;/* I82557 related defines */ |
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239 | ;/***********************************************************************/ |
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240 | |||
241 | ; Serial EEPROM section. |
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242 | ; A "bit" grungy, but we work our way through bit-by-bit :->. |
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243 | ; EEPROM_Ctrl bits. |
||
244 | EE_SHIFT_CLK equ 0x01 ; EEPROM shift clock. |
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245 | EE_CS equ 0x02 ; EEPROM chip select. |
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246 | EE_DATA_WRITE equ 0x04 ; EEPROM chip data in. |
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247 | EE_DATA_READ equ 0x08 ; EEPROM chip data out. |
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248 | EE_WRITE_0 equ 0x4802 |
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249 | EE_WRITE_1 equ 0x4806 |
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250 | EE_ENB equ 0x4802 |
||
251 | |||
252 | |||
253 | ; The EEPROM commands include the alway-set leading bit. |
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254 | EE_READ_CMD equ 6 |
||
255 | |||
256 | ; The SCB accepts the following controls for the Tx and Rx units: |
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257 | CU_START equ 0x0010 |
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258 | CU_RESUME equ 0x0020 |
||
259 | CU_STATSADDR equ 0x0040 |
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260 | CU_SHOWSTATS equ 0x0050 ; Dump statistics counters. |
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261 | CU_CMD_BASE equ 0x0060 ; Base address to add to add CU commands. |
||
262 | CU_DUMPSTATS equ 0x0070 ; Dump then reset stats counters. |
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263 | |||
264 | RX_START equ 0x0001 |
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265 | RX_RESUME equ 0x0002 |
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266 | RX_ABORT equ 0x0004 |
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267 | RX_ADDR_LOAD equ 0x0006 |
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268 | RX_RESUMENR equ 0x0007 |
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269 | INT_MASK equ 0x0100 |
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270 | DRVR_INT equ 0x0200 ; Driver generated interrupt. |
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271 | |||
272 | |||
273 | ;*************************************************************************** |
||
274 | ; Function |
||
275 | ; do_eeprom_cmd |
||
276 | ; |
||
277 | ; Description |
||
278 | ; writes a cmd to the ethernet cards eeprom, by bit bashing |
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279 | ; cmd in ebx |
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280 | ; cmd length in ecx |
||
281 | ; return in eax |
||
282 | ;*************************************************************************** |
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283 | do_eeprom_cmd: |
||
284 | mov edx, [io_addr]; We only require the value in dx |
||
285 | add dx, 14 ; the value SCBeeprom |
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286 | |||
287 | mov ax, EE_ENB |
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288 | out dx, ax |
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289 | call delay_us |
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290 | |||
291 | mov ax, 0x4803 ; EE_ENB | EE_SHIFT_CLK |
||
292 | out dx, ax |
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293 | call delay_us |
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294 | |||
295 | ; dx holds ee_addr |
||
296 | ; ecx holds count |
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297 | ; eax holds cmd |
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298 | xor edi, edi ; this will be the receive data |
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299 | |||
300 | dec_001: |
||
301 | mov esi, 1 |
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302 | |||
303 | dec ecx |
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304 | shl esi, cl |
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305 | inc ecx |
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306 | and esi, ebx |
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307 | mov eax, EE_WRITE_0; I am assuming this doesnt affect the flags.. |
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308 | cmp esi, 0 |
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309 | jz dec_002 |
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310 | mov eax, EE_WRITE_1 |
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311 | |||
312 | dec_002: |
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313 | out dx, ax |
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314 | call delay_us |
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315 | |||
316 | or ax, EE_SHIFT_CLK |
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317 | out dx, ax |
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318 | call delay_us |
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319 | |||
320 | shl edi, 1 |
||
321 | |||
322 | in ax, dx |
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323 | and ax, EE_DATA_READ |
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324 | cmp ax, 0 |
||
325 | jz dec_003 |
||
326 | inc edi |
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327 | |||
328 | dec_003: |
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329 | loop dec_001 |
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330 | |||
331 | mov ax, EE_ENB |
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332 | out dx, ax |
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333 | call delay_us |
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334 | |||
335 | mov ax, 0x4800 |
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336 | out dx, ax |
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337 | call delay_us |
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338 | |||
339 | mov eax, edi |
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340 | |||
341 | ret |
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342 | |||
343 | |||
344 | ;*************************************************************************** |
||
345 | ; Function |
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346 | ; I8255x_probe |
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347 | ; Description |
||
348 | ; Searches for an ethernet card, enables it and clears the rx buffer |
||
349 | ; If a card was found, it enables the ethernet -> TCPIP link |
||
350 | ; |
||
351 | ;*************************************************************************** |
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352 | I8255x_probe: |
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353 | DEBUGF 1," K : Probing i8255x device \n" |
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354 | mov eax, [io_addr] |
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355 | |||
356 | mov ebx, [pci_bus] |
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357 | mov ecx, [pci_dev] |
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358 | mov edx, 0x04 ; PCI_COMMAND |
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359 | call pcibios_read_config_word |
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360 | |||
361 | or ax, 0x05 |
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362 | mov ebx, [pci_bus] |
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363 | mov ecx, [pci_dev] |
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364 | mov edx, 0x04 ; PCI_COMMAND |
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365 | call pcibios_write_config_word |
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366 | |||
367 | mov ebx, 0x6000000 |
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368 | mov ecx, 27 |
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369 | call do_eeprom_cmd |
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370 | and eax, 0xffe0000 |
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371 | cmp eax, 0xffe0000 |
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372 | je bige |
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373 | |||
374 | mov ebx, 0x1800000 |
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375 | mov ecx, 0x40 |
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376 | jmp doread |
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377 | |||
378 | bige: |
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379 | mov ebx, 0x6000000 |
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380 | mov ecx, 0x100 |
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381 | |||
382 | doread: |
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383 | ; do-eeprom-cmd will destroy all registers |
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384 | ; we have eesize in ecx |
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385 | ; read_cmd in ebx |
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386 | |||
387 | ; Ignore full eeprom - just load the mac address |
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388 | mov ecx, 0 |
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389 | |||
390 | drlp: |
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391 | push ecx ; save count |
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392 | push ebx |
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393 | mov eax, ecx |
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394 | shl eax, 16 |
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395 | or ebx, eax |
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396 | mov ecx, 27 |
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397 | call do_eeprom_cmd |
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398 | |||
399 | pop ebx |
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400 | pop ecx |
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401 | |||
402 | mov edx, ecx |
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403 | shl edx, 2 |
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404 | mov esi, eeprom_data |
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405 | add esi, edx |
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406 | mov [esi], eax |
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407 | |||
408 | inc ecx |
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409 | cmp ecx, 16 |
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410 | jne drlp |
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411 | |||
412 | ; OK, we have the MAC address. |
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413 | ; Now reset the card |
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414 | |||
415 | mov edx, [io_addr] |
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416 | add dx, 8 ; SCBPort |
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417 | xor eax, eax ; The reset cmd == 0 |
||
418 | out dx, eax |
||
419 | |||
420 | mov esi, 10 |
||
421 | call delay_ms ; Give the card time to warm up. |
||
422 | |||
423 | mov eax, lstats |
||
424 | mov edx, [io_addr] |
||
425 | add edx, 4 ; SCBPointer |
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426 | out dx, eax |
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427 | |||
428 | mov eax, 0x0140 ; INT_MASK | CU_STATSADDR |
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429 | mov edx, [io_addr] |
||
430 | add edx, 2 ; SCBCmd |
||
431 | out dx, ax |
||
432 | |||
433 | call wait_for_cmd_done |
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434 | |||
435 | mov eax, 0 |
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436 | mov edx, [io_addr] |
||
437 | add edx, 4 ; SCBPointer |
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438 | out dx, eax |
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439 | |||
440 | mov eax, 0x0106 ; INT_MASK | RX_ADDR_LOAD |
||
441 | mov edx, [io_addr] |
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442 | add edx, 2 ; SCBCmd |
||
443 | out dx, ax |
||
444 | |||
445 | call wait_for_cmd_done |
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446 | |||
447 | ; build rxrd structure |
||
448 | mov ax, 0x0001 |
||
449 | mov [rxfd_status], ax |
||
450 | mov ax, 0x0000 |
||
451 | mov [rxfd_command], ax |
||
452 | |||
453 | mov eax, rxfd_status |
||
454 | sub eax, OS_BASE |
||
455 | mov [rxfd_link], eax |
||
456 | |||
457 | mov eax, Ether_buffer |
||
458 | sub eax, OS_BASE |
||
459 | mov [rxfd_rx_buf_addr], eax |
||
460 | |||
461 | mov ax, 0 |
||
462 | mov [rxfd_count], ax |
||
463 | |||
464 | mov ax, 1528 |
||
465 | mov [rxfd_size], ax |
||
466 | |||
467 | mov edx, [io_addr] |
||
468 | add edx, 4 ; SCBPointer |
||
469 | |||
470 | mov eax, rxfd_status |
||
471 | sub eax, OS_BASE |
||
472 | out dx, eax |
||
473 | |||
474 | mov edx, [io_addr] |
||
475 | add edx, 2 ; SCBCmd |
||
476 | |||
477 | mov ax, 0x0101 ; INT_MASK | RX_START |
||
478 | out dx, ax |
||
479 | |||
480 | call wait_for_cmd_done |
||
481 | |||
482 | ; start the reciver |
||
483 | |||
484 | mov ax, 0 |
||
485 | mov [rxfd_status], ax |
||
486 | |||
487 | mov ax, 0xc000 |
||
488 | mov [rxfd_command], ax |
||
489 | |||
490 | mov edx, [io_addr] |
||
491 | add edx, 4 ; SCBPointer |
||
492 | |||
493 | mov eax, rxfd_status |
||
494 | sub eax, OS_BASE |
||
495 | out dx, eax |
||
496 | |||
497 | mov edx, [io_addr] |
||
498 | add edx, 2 ; SCBCmd |
||
499 | |||
500 | mov ax, 0x0101 ; INT_MASK | RX_START |
||
501 | out dx, ax |
||
502 | |||
503 | ; Init TX Stuff |
||
504 | |||
505 | mov edx, [io_addr] |
||
506 | add edx, 4 ; SCBPointer |
||
507 | |||
508 | mov eax, 0 |
||
509 | out dx, eax |
||
510 | |||
511 | mov edx, [io_addr] |
||
512 | add edx, 2 ; SCBCmd |
||
513 | |||
514 | mov ax, 0x0160 ; INT_MASK | CU_CMD_BASE |
||
515 | out dx, ax |
||
516 | |||
517 | call wait_for_cmd_done |
||
518 | |||
519 | ; Set TX Base address |
||
520 | |||
521 | ; First, set up confcmd values |
||
522 | |||
523 | mov ax, 2 |
||
524 | mov [confcmd_command], ax |
||
525 | mov eax, txfd |
||
526 | sub eax, OS_BASE |
||
527 | mov [confcmd_link], eax |
||
528 | |||
529 | mov ax, 1 |
||
530 | mov [txfd_command], ax ; CmdIASetup |
||
531 | |||
532 | mov ax, 0 |
||
533 | mov [txfd_status], ax |
||
534 | |||
535 | mov eax, confcmd |
||
536 | sub eax, OS_BASE |
||
537 | mov [txfd_link], eax |
||
538 | |||
539 | |||
540 | |||
541 | ; ETH_ALEN is 6 bytes |
||
542 | |||
543 | mov esi, eeprom_data |
||
544 | mov edi, node_addr |
||
545 | mov ecx, 3 |
||
546 | drp000: |
||
547 | mov eax, [esi] |
||
548 | mov [edi], al |
||
549 | shr eax, 8 |
||
550 | inc edi |
||
551 | mov [edi], al |
||
552 | inc edi |
||
553 | add esi, 4 |
||
554 | loop drp000 |
||
555 | |||
556 | ; Hard code your MAC address into node_addr at this point, |
||
557 | ; If you cannot read the MAC address from the eeprom in the previous step. |
||
558 | ; You also have to write the mac address into txfd_tx_desc_addr, rather |
||
559 | ; than taking data from eeprom_data |
||
560 | |||
561 | mov esi, eeprom_data |
||
562 | mov edi, txfd_tx_desc_addr |
||
563 | mov ecx, 3 |
||
564 | drp001: |
||
565 | mov eax, [esi] |
||
566 | mov [edi], al |
||
567 | shr eax, 8 |
||
568 | inc edi |
||
569 | mov [edi], al |
||
570 | inc edi |
||
571 | add esi, 4 |
||
572 | loop drp001 |
||
573 | |||
574 | |||
575 | mov esi, eeprom_data + (6 * 4) |
||
576 | mov eax, [esi] |
||
577 | shr eax, 8 |
||
578 | and eax, 0x3f |
||
579 | cmp eax, 4 ; DP83840 |
||
580 | je drp002 |
||
581 | cmp eax, 10 ; DP83840A |
||
582 | je drp002 |
||
583 | jmp drp003 |
||
584 | |||
585 | drp002: |
||
586 | mov ebx, [esi] |
||
587 | and ebx, 0x1f |
||
588 | push ebx |
||
589 | mov ecx, 23 |
||
590 | call mdio_read |
||
591 | pop ebx |
||
592 | or eax, 0x0422 |
||
593 | mov ecx, 23 |
||
594 | mov edx, eax |
||
595 | call mdio_write |
||
596 | |||
597 | drp003: |
||
598 | mov ax, 0x4002 ; Cmdsuspend | CmdConfigure |
||
599 | mov [confcmd_command], ax |
||
600 | mov ax, 0 |
||
601 | mov [confcmd_status], ax |
||
602 | mov eax, txfd |
||
603 | mov [confcmd_link], eax |
||
604 | mov ebx, confcmd_data |
||
605 | mov al, 0x88 ; fifo of 8 each |
||
606 | mov [ebx + 1], al |
||
607 | mov al, 0 |
||
608 | mov [ebx + 4], al |
||
609 | mov al, 0x80 |
||
610 | mov [ebx + 5], al |
||
611 | mov al, 0x48 |
||
612 | mov [ebx + 15], al |
||
613 | mov al, 0x80 |
||
614 | mov [ebx + 19], al |
||
615 | mov al, 0x05 |
||
616 | mov [ebx + 21], al |
||
617 | |||
618 | mov eax, txfd |
||
619 | sub eax, OS_BASE |
||
620 | mov edx, [io_addr] |
||
621 | add edx, 4 ; SCBPointer |
||
622 | out dx, eax |
||
623 | |||
624 | mov eax, 0x0110 ; INT_MASK | CU_START |
||
625 | mov edx, [io_addr] |
||
626 | add edx, 2 ; SCBCmd |
||
627 | out dx, ax |
||
628 | |||
629 | call wait_for_cmd_done |
||
630 | jmp skip |
||
631 | |||
632 | ; wait for thing to start |
||
633 | drp004: |
||
634 | mov ax, [txfd_status] |
||
635 | cmp ax, 0 |
||
636 | je drp004 |
||
637 | |||
638 | skip: |
||
639 | ; Indicate that we have successfully reset the card |
||
640 | mov eax, [pci_data] |
||
641 | mov [eth_status], eax |
||
642 | |||
643 | I8255x_exit: |
||
644 | ret |
||
645 | |||
646 | |||
647 | |||
648 | ;*************************************************************************** |
||
649 | ; Function |
||
650 | ; I8255x_reset |
||
651 | ; Description |
||
652 | ; Place the chip (ie, the ethernet card) into a virgin state |
||
653 | ; No inputs |
||
654 | ; All registers destroyed |
||
655 | ; |
||
656 | ;*************************************************************************** |
||
657 | I8255x_reset: |
||
658 | ret |
||
659 | |||
660 | |||
661 | |||
662 | ;*************************************************************************** |
||
663 | ; Function |
||
664 | ; I8255x_poll |
||
665 | ; |
||
666 | ; Description |
||
667 | ; Polls the ethernet card for a received packet |
||
668 | ; Received data, if any, ends up in Ether_buffer |
||
669 | ; |
||
670 | ;*************************************************************************** |
||
671 | I8255x_poll: |
||
672 | mov ax, 0 ; assume no data |
||
673 | mov [eth_rx_data_len], ax |
||
674 | |||
675 | mov ax, [rxfd_status] |
||
676 | cmp ax, 0 |
||
677 | je i8p_exit |
||
678 | |||
679 | mov ax, 0 |
||
680 | mov [rxfd_status], ax |
||
681 | |||
682 | mov ax, 0xc000 |
||
683 | mov [rxfd_command], ax |
||
684 | |||
685 | mov edx, [io_addr] |
||
686 | add edx, 4 ; SCBPointer |
||
687 | |||
688 | mov eax, rxfd_status |
||
689 | sub eax, OS_BASE |
||
690 | out dx, eax |
||
691 | |||
692 | mov edx, [io_addr] |
||
693 | add edx, 2 ; SCBCmd |
||
694 | |||
695 | mov ax, 0x0101 ; INT_MASK | RX_START |
||
696 | out dx, ax |
||
697 | |||
698 | call wait_for_cmd_done |
||
699 | |||
700 | mov esi, rxfd_packet |
||
701 | mov edi, Ether_buffer |
||
702 | mov ecx, 1518 |
||
703 | cld |
||
704 | rep movsb |
||
705 | |||
706 | mov ax, [rxfd_count] |
||
707 | and ax, 0x3fff |
||
708 | mov [eth_rx_data_len], ax |
||
709 | |||
710 | i8p_exit: |
||
711 | ret |
||
712 | |||
713 | |||
714 | |||
715 | ;*************************************************************************** |
||
716 | ; Function |
||
717 | ; I8255x_transmit |
||
718 | ; |
||
719 | ; Description |
||
720 | ; Transmits a packet of data via the ethernet card |
||
721 | ; Pointer to 48 bit destination address in edi |
||
722 | ; Type of packet in bx |
||
723 | ; size of packet in ecx |
||
724 | ; pointer to packet data in esi |
||
725 | ; |
||
726 | ;*************************************************************************** |
||
727 | I8255x_transmit: |
||
728 | |||
729 | mov [hdr_type], bx |
||
730 | |||
731 | mov eax, [edi] |
||
732 | mov [hdr_dst_addr], eax |
||
733 | mov ax, [edi+4] |
||
734 | mov [hdr_dst_addr+4], ax |
||
735 | |||
736 | mov eax, [node_addr] |
||
737 | mov [hdr_src_addr], eax |
||
738 | mov ax, [node_addr+4] |
||
739 | mov [hdr_src_addr+4], ax |
||
740 | |||
741 | mov edx, [io_addr] |
||
742 | in ax, dx |
||
743 | and ax, 0xfc00 |
||
744 | out dx, ax |
||
745 | |||
746 | xor ax, ax |
||
747 | mov [txfd_status], ax |
||
748 | mov ax, 0x400C ; Cmdsuspend | CmdTx | CmdTxFlex |
||
749 | mov [txfd_command], ax |
||
750 | mov eax, txfd |
||
751 | mov [txfd_link], eax |
||
752 | mov eax, 0x02208000 |
||
753 | mov [txfd_count], eax |
||
754 | mov eax, txfd_tx_buf_addr0 |
||
755 | sub eax, OS_BASE |
||
756 | mov [txfd_tx_desc_addr], eax |
||
757 | mov eax, hdr |
||
758 | sub eax, OS_BASE |
||
759 | mov [txfd_tx_buf_addr0], eax |
||
760 | mov eax, 14; sizeof hdr |
||
761 | mov [txfd_tx_buf_size0], eax |
||
762 | |||
763 | ; Copy the buffer address and size in |
||
764 | mov eax, esi |
||
765 | sub eax, OS_BASE |
||
766 | mov [txfd_tx_buf_addr1], eax |
||
767 | mov eax, ecx |
||
768 | mov [txfd_tx_buf_size1], eax |
||
769 | |||
770 | mov eax, txfd |
||
771 | sub eax, OS_BASE |
||
772 | mov edx, [io_addr] |
||
773 | add edx, 4 ; SCBPointer |
||
774 | out dx, eax |
||
775 | |||
776 | mov ax, 0x0110 ; INT_MASK | CU_START |
||
777 | mov edx, [io_addr] |
||
778 | add edx, 2 ; SCBCmd |
||
779 | out dx, ax |
||
780 | |||
781 | call wait_for_cmd_done |
||
782 | |||
783 | mov edx, [io_addr] |
||
784 | in ax, dx |
||
785 | |||
786 | I8t_001: |
||
787 | mov ax, [txfd_status] |
||
788 | cmp ax, 0 |
||
789 | je I8t_001 |
||
790 | |||
791 | mov edx, [io_addr] |
||
792 | in ax, dx |
||
793 | |||
794 | ret |