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Rev | Author | Line No. | Line |
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1159 | hidnplayr | 1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ;; ;; |
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1196 | hidnplayr | 3 | ;; Copyright (C) KolibriOS team 2004-2009. All rights reserved. ;; |
1159 | hidnplayr | 4 | ;; Distributed under terms of the GNU General Public License ;; |
5 | ;; ;; |
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6 | ;; ETHERNET.INC ;; |
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7 | ;; ;; |
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8 | ;; Ethernet network layer for KolibriOS ;; |
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9 | ;; ;; |
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10 | ;; Written by hidnplayr@kolibrios.org ;; |
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11 | ;; ;; |
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12 | ;; GNU GENERAL PUBLIC LICENSE ;; |
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13 | ;; Version 2, June 1991 ;; |
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14 | ;; ;; |
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15 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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16 | |||
1206 | hidnplayr | 17 | $Revision: 1206 $ |
1159 | hidnplayr | 18 | |
19 | MAX_ETH_DEVICES equ MAX_NET_DEVICES |
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20 | ETH_QUEUE_SIZE equ 16 |
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21 | |||
22 | struct ETH_FRAME |
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23 | .DstMAC dp ? ; destination MAC-address [6 bytes] |
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24 | .SrcMAC dp ? ; source MAC-address [6 bytes] |
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25 | .Type dw ? ; type of the upper-layer protocol [2 bytes] |
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26 | .Data: ; data [46-1500 bytes] |
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27 | ends |
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28 | |||
29 | struct ETH_DEVICE |
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30 | .unload dd ? |
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31 | .reset dd ? |
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32 | .transmit dd ? |
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33 | .set_MAC dd ? |
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34 | .get_MAC dd ? |
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35 | .set_mode dd ? |
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36 | .get_mode dd ? |
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37 | |||
38 | .bytes_tx dq ? |
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39 | .bytes_rx dq ? |
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40 | .packets_tx dd ? |
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41 | .packets_rx dd ? |
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42 | .mode dd ? ; This dword contains cable status (10mbit/100mbit, full/half duplex, auto negotiation or not,..) |
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43 | .name dd ? |
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44 | .mac dp ? |
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45 | ends ; the rest of the device struct depends on the type of device |
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46 | |||
47 | |||
48 | align 4 |
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1196 | hidnplayr | 49 | iglobal |
50 | |||
51 | ETH_BROADCAST dp 0xffffffffffff |
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52 | endg |
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53 | |||
54 | align 4 |
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1159 | hidnplayr | 55 | uglobal |
56 | |||
57 | ETH_RUNNING dd ? |
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58 | ETH_DRV_LIST rd MAX_ETH_DEVICES |
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59 | ETH_IN_QUEUE rd 3*ETH_QUEUE_SIZE+3 |
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60 | ETH_OUT_QUEUE rd 3*ETH_QUEUE_SIZE+3 |
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61 | endg |
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62 | |||
63 | |||
64 | ;----------------------------------------------- |
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65 | ; |
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66 | ; ETH_init |
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67 | ; |
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68 | ; This function resets all ethernet variables |
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69 | ; |
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70 | ; IN: / |
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71 | ; OUT: / |
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72 | ; |
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73 | ;----------------------------------------------- |
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74 | |||
75 | align 4 |
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76 | ETH_init: |
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77 | |||
78 | xor eax, eax |
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79 | mov edi, ETH_RUNNING |
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80 | mov ecx, (1+MAX_ETH_DEVICES) |
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81 | rep stosd |
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82 | |||
1174 | hidnplayr | 83 | mov dword [ETH_IN_QUEUE], ETH_QUEUE_SIZE |
1159 | hidnplayr | 84 | mov dword [ETH_IN_QUEUE+4], ETH_IN_QUEUE + queue.data |
85 | mov dword [ETH_IN_QUEUE+8], ETH_IN_QUEUE + queue.data |
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86 | |||
1174 | hidnplayr | 87 | mov dword [ETH_OUT_QUEUE], ETH_QUEUE_SIZE |
1159 | hidnplayr | 88 | mov dword [ETH_OUT_QUEUE+4], ETH_OUT_QUEUE + queue.data |
89 | mov dword [ETH_OUT_QUEUE+8], ETH_OUT_QUEUE + queue.data |
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90 | |||
91 | ret |
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92 | |||
93 | |||
94 | ;--------------------------------------------------------- |
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95 | ; |
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96 | ; ETH_Add_Device: |
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97 | ; |
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98 | ; This function is called by ethernet drivers, |
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99 | ; to register each running ethernet device to the kernel |
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100 | ; |
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101 | ; IN: Pointer to device structure in ebx |
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102 | ; OUT: Device num in eax, -1 on error |
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103 | ; |
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104 | ;--------------------------------------------------------- |
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105 | |||
106 | align 4 |
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107 | ETH_Add_Device: |
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108 | |||
1185 | hidnplayr | 109 | DEBUGF 1,"ETH_Add_Device: %x ", ebx |
1174 | hidnplayr | 110 | |
111 | mov eax, [ETH_RUNNING] |
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112 | cmp eax, MAX_ETH_DEVICES |
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1159 | hidnplayr | 113 | jge .error |
114 | |||
1174 | hidnplayr | 115 | test eax, eax |
116 | jnz .notfirst |
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117 | mov dword [ETH_IN_QUEUE], eax |
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118 | mov dword [ETH_OUT_QUEUE], eax |
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119 | .notfirst: |
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120 | |||
1159 | hidnplayr | 121 | mov eax, ebx |
122 | mov ecx, MAX_ETH_DEVICES ; We need to check whole list because a device may be removed without re-organizing list |
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123 | mov edi, ETH_DRV_LIST |
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124 | |||
125 | cld |
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126 | repne scasd ; See if device is already in the list |
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127 | jz .error |
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128 | |||
129 | xor eax, eax |
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130 | mov ecx, MAX_ETH_DEVICES |
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131 | mov edi, ETH_DRV_LIST |
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132 | |||
133 | repne scasd ; Find empty spot in the list |
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134 | jnz .error |
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135 | |||
136 | sub edi, 4 |
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137 | mov [edi], ebx ; add device to list |
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138 | |||
139 | sub edi, ETH_DRV_LIST ; edi = 4*device num Calculate device number in eax |
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140 | mov eax, edi ; edx = 4*device num |
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141 | shr eax, 2 |
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142 | |||
143 | inc [ETH_RUNNING] ; Indicate that one more ethernet device is up and running |
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1174 | hidnplayr | 144 | |
1159 | hidnplayr | 145 | DEBUGF 1,"- succes: %u\n",eax |
146 | ret |
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147 | |||
148 | .error: |
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149 | or eax, -1 |
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150 | DEBUGF 1,"- fail\n" |
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151 | |||
152 | ret |
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153 | |||
154 | |||
155 | |||
156 | |||
157 | ;-------------------------------- |
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158 | ; |
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159 | ; ETH_Remove_Device: |
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160 | ; |
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161 | ; This function is called by ethernet drivers, |
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162 | ; to unregister ethernet devices from the kernel |
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163 | ; |
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164 | ; IN: Pointer to device structure in ebx |
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165 | ; OUT: eax: -1 on error |
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166 | ; |
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167 | ;-------------------------------- |
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168 | |||
169 | align 4 |
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170 | ETH_Remove_Device: |
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171 | |||
172 | cmp [ETH_RUNNING], 0 |
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173 | je .error |
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174 | |||
175 | mov eax, ebx |
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176 | mov ecx, MAX_ETH_DEVICES |
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177 | mov edi, ETH_DRV_LIST |
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178 | |||
179 | repne scasd |
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180 | jnz .error |
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181 | |||
182 | xor eax, eax |
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183 | mov dword [edi-4], eax |
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184 | |||
185 | dec [ETH_RUNNING] |
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1174 | hidnplayr | 186 | jnz .notlast |
1159 | hidnplayr | 187 | |
1174 | hidnplayr | 188 | mov dword [ETH_IN_QUEUE], ETH_QUEUE_SIZE |
189 | mov dword [ETH_OUT_QUEUE], ETH_QUEUE_SIZE |
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190 | |||
191 | .notlast: |
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192 | |||
1159 | hidnplayr | 193 | ret |
194 | |||
195 | .error: |
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196 | or eax, -1 |
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197 | |||
198 | ret |
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199 | |||
200 | |||
201 | |||
202 | ;------------------------------------------------------------- |
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203 | ; |
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204 | ; ETH_Receiver: |
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205 | ; |
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206 | ; This function is called by ethernet drivers, |
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207 | ; It pushes the received ethernet packets onto the eth_in_queue |
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208 | ; |
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209 | ; IN: Pointer to buffer in [esp], size of buffer in [esp-4], pointer to eth_device in ebx |
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210 | ; OUT: / |
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211 | ; |
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212 | ;------------------------------------------------------------- |
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213 | |||
214 | align 4 |
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215 | ETH_Receiver: |
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216 | DEBUGF 1,"ETH_Receiver \n" |
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217 | |||
218 | add_to_queue ETH_IN_QUEUE, ETH_QUEUE_SIZE, .gohome |
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219 | |||
220 | .gohome: |
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221 | ret |
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222 | |||
223 | |||
224 | |||
225 | |||
226 | |||
227 | ;------------------------------------------------------------- |
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228 | ; |
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229 | ; ETH_Handler: |
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230 | ; |
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231 | ; Handles all queued eth packets (called from kernel's main_loop) |
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232 | ; |
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233 | ; IN: / |
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234 | ; OUT: / |
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235 | ; |
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236 | ;------------------------------------------------------------- |
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237 | |||
238 | align 4 |
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1196 | hidnplayr | 239 | ETH_handler: |
1159 | hidnplayr | 240 | |
241 | get_from_queue ETH_IN_QUEUE, ETH_QUEUE_SIZE, .gohome |
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242 | |||
243 | DEBUGF 1,"ETH_Handler - size: %u\n", ecx |
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244 | cmp ecx, 60 ; check packet length |
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245 | jl .dump |
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246 | sub ecx, ETH_FRAME.Data |
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247 | |||
248 | lea edx, [eax + ETH_FRAME.Data] |
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249 | mov ax , [eax + ETH_FRAME.Type] |
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250 | |||
251 | cmp ax, ETHER_IPv4 |
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1196 | hidnplayr | 252 | je IPv4_handler |
1159 | hidnplayr | 253 | |
254 | cmp ax, ETHER_ARP |
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1196 | hidnplayr | 255 | je ARP_handler |
1159 | hidnplayr | 256 | |
257 | DEBUGF 1,"Unknown ethernet packet type %x\n", ax |
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258 | |||
259 | .dump: |
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260 | DEBUGF 1,"Dumping packet\n" |
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261 | call kernel_free |
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262 | add esp, 4 |
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263 | |||
264 | .gohome: |
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265 | ret ; return 1. to get more from queue / 2. to caller |
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266 | |||
267 | |||
268 | |||
269 | ;----------------------------------------------------------------- |
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270 | ; |
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271 | ; ETH_Sender: |
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272 | ; |
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273 | ; This function sends an ethernet packet to the correct driver. |
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274 | ; |
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275 | ; IN: Pointer to buffer in [esp] |
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276 | ; size of buffer in [esp+4] |
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277 | ; pointer to device struct in ebx |
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278 | ; OUT: / |
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279 | ; |
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280 | ;----------------------------------------------------------------- |
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281 | |||
282 | align 4 |
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283 | ETH_Sender: |
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284 | DEBUGF 1,"ETH_Sender \n" |
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285 | |||
286 | add_to_queue ETH_OUT_QUEUE, ETH_QUEUE_SIZE, .gohome |
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287 | |||
288 | .gohome: |
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289 | ret |
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290 | |||
291 | |||
292 | align 4 |
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293 | ETH_send_queued: |
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294 | |||
295 | get_from_queue ETH_OUT_QUEUE, ETH_QUEUE_SIZE, .gohome |
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296 | |||
297 | call ETH_struc2dev ; convert struct ptr to device num (this way we know if driver is still mounted) |
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298 | cmp edi, -1 |
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299 | je .fail |
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300 | |||
301 | DEBUGF 1,"ETH_Sender - device: %u\n", edi |
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302 | |||
303 | jmp [ebx+ETH_DEVICE.transmit] |
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304 | |||
305 | .fail: |
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306 | call kernel_free |
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307 | add esp, 4 ; pop (balance stack) |
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308 | DEBUGF 1,"ETH_Sender - fail\n" |
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309 | .gohome: |
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310 | ret |
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311 | |||
312 | ;--------------------------------------------------------------------------- |
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313 | ; |
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314 | ; ETH_struc2dev |
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315 | ; |
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316 | ; IN: pointer to device struct in ebx |
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317 | ; |
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318 | ; OUT: edi is -1 on error, device number otherwise |
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319 | ; |
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320 | ;--------------------------------------------------------------------------- |
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321 | |||
322 | align 4 |
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323 | ETH_struc2dev: |
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324 | push eax ecx |
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325 | |||
326 | mov eax, ebx |
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327 | mov ecx, MAX_ETH_DEVICES |
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328 | mov edi, ETH_DRV_LIST |
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329 | |||
330 | repne scasd |
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331 | jnz .error |
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332 | |||
333 | sub edi, ETH_DRV_LIST+4 |
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334 | shr edi, 2 |
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335 | |||
336 | pop ecx eax |
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337 | ret |
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338 | .error: |
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339 | or edi, -1 |
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340 | pop ecx eax |
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341 | |||
342 | ret |
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343 | |||
344 | |||
345 | ;--------------------------------------------------------------------------- |
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346 | ; |
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347 | ; ETH_create_Packet |
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348 | ; |
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349 | ; IN: pointer to source mac in eax |
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350 | ; pointer to destination mac in ebx |
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351 | ; packet size in ecx |
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352 | ; device number in edx |
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353 | ; protocol in di |
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354 | ; |
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1206 | hidnplayr | 355 | ; OUT: edi is -1 on error, pointer to buffer otherwise |
1159 | hidnplayr | 356 | ; eax points to buffer start |
1206 | hidnplayr | 357 | ; ebx is pointer to device structure |
1159 | hidnplayr | 358 | ; ecx is unchanged (packet size of embedded data) |
1206 | hidnplayr | 359 | ; edx is size of complete buffer |
1159 | hidnplayr | 360 | ; esi points to procedure wich needs to be called to send packet |
361 | ; |
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362 | ;--------------------------------------------------------------------------- |
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363 | |||
364 | align 4 |
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365 | ETH_create_Packet: |
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366 | |||
1206 | hidnplayr | 367 | DEBUGF 1,"Creating Ethernet Packet (size=%u): \n", ecx |
1159 | hidnplayr | 368 | |
1206 | hidnplayr | 369 | cmp ecx, 1500 |
1159 | hidnplayr | 370 | jg .exit |
371 | |||
372 | push ecx di eax ebx edx |
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373 | |||
374 | add ecx, ETH_FRAME.Data |
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375 | push ecx |
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376 | push ecx |
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377 | call kernel_alloc |
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378 | test eax, eax |
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379 | jz .pop_exit |
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380 | |||
381 | pop ecx |
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382 | pop edx |
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383 | |||
384 | mov edi, eax |
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385 | pop esi |
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386 | movsd |
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387 | movsw |
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388 | pop esi |
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389 | movsd |
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390 | movsw |
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391 | pop ax |
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392 | stosw |
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393 | |||
394 | lea eax, [edi - ETH_FRAME.Data] ; Set eax to buffer start |
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1206 | hidnplayr | 395 | mov edx, ecx ; Set ebx to complete buffer size |
1159 | hidnplayr | 396 | pop ecx |
397 | mov esi, ETH_Sender |
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398 | |||
1206 | hidnplayr | 399 | xor ebx, ebx ;;;; TODO: Fixme |
400 | mov ebx, [ETH_DRV_LIST + ebx] |
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1159 | hidnplayr | 401 | |
1206 | hidnplayr | 402 | cmp edx, 46 + ETH_FRAME.Data ; If data size is less then 46, add padding bytes |
403 | jg .continue |
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404 | mov edx, 46 + ETH_FRAME.Data |
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405 | .continue: |
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406 | |||
407 | DEBUGF 1,"done: %x size:%u device:%x\n", eax, edx, ebx |
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1159 | hidnplayr | 408 | ret |
409 | |||
410 | .pop_exit: |
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1206 | hidnplayr | 411 | DEBUGF 1,"Out of ram space!!\n" |
1159 | hidnplayr | 412 | add esp, 18 |
1206 | hidnplayr | 413 | or edi,-1 |
414 | ret |
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415 | |||
1159 | hidnplayr | 416 | .exit: |
1206 | hidnplayr | 417 | DEBUGF 1,"Packet too large!\n" |
1159 | hidnplayr | 418 | or edi, -1 |
419 | ret |
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420 | |||
421 | |||
422 | |||
423 | ;--------------------------------------------------------------------------- |
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424 | ; |
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425 | ; ETH_API |
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426 | ; |
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427 | ; This function is called by system function 75 |
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428 | ; |
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429 | ; IN: subfunction number in bl |
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430 | ; device number in bh |
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431 | ; ecx, edx, .. depends on subfunction |
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432 | ; |
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433 | ; OUT: |
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434 | ; |
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435 | ;--------------------------------------------------------------------------- |
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436 | |||
437 | align 4 |
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438 | ETH_API: |
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439 | |||
440 | movzx eax, bh |
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441 | shl eax, 2 |
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442 | |||
443 | test bl, bl |
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444 | jz .packets_tx ; 0 |
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445 | dec bl |
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446 | jz .packets_rx ; 1 |
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447 | dec bl |
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448 | jz .bytes_tx ; 2 |
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449 | dec bl |
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450 | jz .bytes_rx ; 3 |
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451 | dec bl |
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452 | jz .read_mac ; 4 |
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453 | dec bl |
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454 | jz .write_mac ; 5 |
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455 | dec bl |
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456 | jz .in_queue ; 6 |
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457 | dec bl |
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458 | jz .out_queue ; 7 |
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459 | |||
460 | .error: |
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461 | mov eax, -1 |
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462 | ret |
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463 | |||
464 | .packets_tx: |
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465 | add eax, ETH_DRV_LIST |
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1171 | hidnplayr | 466 | mov eax, dword [eax] |
467 | mov eax, dword [eax + ETH_DEVICE.packets_tx] |
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468 | |||
1159 | hidnplayr | 469 | ret |
470 | |||
471 | .packets_rx: |
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472 | add eax, ETH_DRV_LIST |
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1171 | hidnplayr | 473 | mov eax, dword [eax] |
474 | mov eax, dword [eax + ETH_DEVICE.packets_rx] |
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1159 | hidnplayr | 475 | ret |
476 | |||
477 | .bytes_tx: |
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478 | add eax, ETH_DRV_LIST |
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1171 | hidnplayr | 479 | mov eax, dword [eax] |
1159 | hidnplayr | 480 | mov eax, dword [eax + ETH_DEVICE.bytes_tx + 4] |
1174 | hidnplayr | 481 | mov eax, dword [eax + ETH_DEVICE.bytes_tx] |
482 | mov [esp+20+4], ebx ; TODO: fix this ugly code |
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1159 | hidnplayr | 483 | ret |
484 | |||
485 | .bytes_rx: |
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486 | add eax, ETH_DRV_LIST |
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1171 | hidnplayr | 487 | mov eax, dword [eax] |
1174 | hidnplayr | 488 | mov ebx, dword [eax + ETH_DEVICE.bytes_rx + 4] |
489 | mov eax, dword [eax + ETH_DEVICE.bytes_rx] |
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490 | mov [esp+20+4], ebx ; TODO: fix this ugly code |
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1159 | hidnplayr | 491 | ret |
492 | |||
1174 | hidnplayr | 493 | |
1159 | hidnplayr | 494 | .read_mac: |
495 | add eax, ETH_DRV_LIST |
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496 | mov eax, [eax] |
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497 | ; push eax |
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498 | ; call dword [eax + ETH_DEVICE.get_MAC] |
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499 | ; pop eax |
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500 | movzx ebx, word [eax + ETH_DEVICE.mac] |
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501 | mov eax, dword [eax + ETH_DEVICE.mac + 2] |
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1171 | hidnplayr | 502 | mov [esp+20+4], ebx ; TODO: fix this ugly code |
1159 | hidnplayr | 503 | ret |
504 | |||
505 | .write_mac: |
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506 | push ecx |
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507 | push dx |
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508 | add eax, ETH_DRV_LIST |
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509 | mov eax, [eax] |
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510 | mov eax, dword [eax + ETH_DEVICE.set_MAC] |
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511 | call eax |
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512 | ret |
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513 | |||
514 | .in_queue: |
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515 | add eax, ETH_IN_QUEUE |
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516 | mov eax, [eax + queue.size] |
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517 | ret |
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518 | |||
519 | .out_queue: |
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520 | add eax, ETH_OUT_QUEUE |
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521 | mov eax, [eax + queue.size] |
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522 | ret |