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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: 1254 $ |
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 | |||
1249 | hidnplayr | 83 | init_queue ETH_IN_QUEUE |
84 | init_queue ETH_OUT_QUEUE |
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1159 | hidnplayr | 85 | |
86 | ret |
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87 | |||
88 | |||
89 | ;--------------------------------------------------------- |
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90 | ; |
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91 | ; ETH_Add_Device: |
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92 | ; |
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93 | ; This function is called by ethernet drivers, |
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94 | ; to register each running ethernet device to the kernel |
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95 | ; |
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96 | ; IN: Pointer to device structure in ebx |
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97 | ; OUT: Device num in eax, -1 on error |
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98 | ; |
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99 | ;--------------------------------------------------------- |
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100 | |||
101 | align 4 |
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1249 | hidnplayr | 102 | ETH_add_device: |
1159 | hidnplayr | 103 | |
1185 | hidnplayr | 104 | DEBUGF 1,"ETH_Add_Device: %x ", ebx |
1174 | hidnplayr | 105 | |
106 | mov eax, [ETH_RUNNING] |
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107 | cmp eax, MAX_ETH_DEVICES |
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1159 | hidnplayr | 108 | jge .error |
109 | |||
1174 | hidnplayr | 110 | test eax, eax |
111 | jnz .notfirst |
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112 | mov dword [ETH_IN_QUEUE], eax |
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113 | mov dword [ETH_OUT_QUEUE], eax |
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114 | .notfirst: |
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115 | |||
1159 | hidnplayr | 116 | mov eax, ebx |
117 | 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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118 | mov edi, ETH_DRV_LIST |
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119 | |||
120 | repne scasd ; See if device is already in the list |
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121 | jz .error |
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122 | |||
123 | xor eax, eax |
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124 | mov ecx, MAX_ETH_DEVICES |
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125 | mov edi, ETH_DRV_LIST |
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126 | |||
127 | repne scasd ; Find empty spot in the list |
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128 | jnz .error |
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129 | |||
130 | sub edi, 4 |
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131 | mov [edi], ebx ; add device to list |
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132 | |||
133 | sub edi, ETH_DRV_LIST ; edi = 4*device num Calculate device number in eax |
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134 | mov eax, edi ; edx = 4*device num |
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135 | shr eax, 2 |
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136 | |||
137 | inc [ETH_RUNNING] ; Indicate that one more ethernet device is up and running |
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1174 | hidnplayr | 138 | |
1159 | hidnplayr | 139 | DEBUGF 1,"- succes: %u\n",eax |
140 | ret |
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141 | |||
142 | .error: |
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143 | or eax, -1 |
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144 | DEBUGF 1,"- fail\n" |
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145 | |||
146 | ret |
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147 | |||
148 | |||
149 | |||
150 | |||
151 | ;-------------------------------- |
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152 | ; |
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153 | ; ETH_Remove_Device: |
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154 | ; |
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155 | ; This function is called by ethernet drivers, |
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156 | ; to unregister ethernet devices from the kernel |
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157 | ; |
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158 | ; IN: Pointer to device structure in ebx |
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159 | ; OUT: eax: -1 on error |
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160 | ; |
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161 | ;-------------------------------- |
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162 | |||
163 | align 4 |
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1249 | hidnplayr | 164 | ETH_remove_device: |
1159 | hidnplayr | 165 | |
166 | cmp [ETH_RUNNING], 0 |
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167 | je .error |
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168 | |||
169 | mov eax, ebx |
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170 | mov ecx, MAX_ETH_DEVICES |
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171 | mov edi, ETH_DRV_LIST |
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172 | |||
173 | repne scasd |
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174 | jnz .error |
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175 | |||
176 | xor eax, eax |
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177 | mov dword [edi-4], eax |
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178 | |||
179 | dec [ETH_RUNNING] |
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1174 | hidnplayr | 180 | jnz .notlast |
1159 | hidnplayr | 181 | |
1174 | hidnplayr | 182 | mov dword [ETH_IN_QUEUE], ETH_QUEUE_SIZE |
183 | mov dword [ETH_OUT_QUEUE], ETH_QUEUE_SIZE |
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184 | |||
185 | .notlast: |
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186 | |||
1159 | hidnplayr | 187 | ret |
188 | |||
189 | .error: |
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190 | or eax, -1 |
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191 | |||
192 | ret |
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193 | |||
194 | |||
195 | |||
196 | ;------------------------------------------------------------- |
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197 | ; |
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198 | ; ETH_Receiver: |
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199 | ; |
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200 | ; This function is called by ethernet drivers, |
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201 | ; It pushes the received ethernet packets onto the eth_in_queue |
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202 | ; |
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203 | ; IN: Pointer to buffer in [esp], size of buffer in [esp-4], pointer to eth_device in ebx |
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204 | ; OUT: / |
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205 | ; |
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206 | ;------------------------------------------------------------- |
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207 | |||
208 | align 4 |
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1249 | hidnplayr | 209 | ETH_receiver: |
210 | DEBUGF 1,"ETH_Receiver: " |
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1159 | hidnplayr | 211 | |
1249 | hidnplayr | 212 | push ebx |
213 | mov esi, esp |
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214 | add_to_queue ETH_IN_QUEUE, ETH_QUEUE_SIZE, eth_queue_entry.size, .fail |
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215 | DEBUGF 1,"Queued packet successfully\n" |
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216 | add esp, 4*3 |
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217 | ret |
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1159 | hidnplayr | 218 | |
1249 | hidnplayr | 219 | .fail: |
220 | DEBUGF 1,"ETH_IN_QUEUE is full!\n" |
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221 | add esp, 4 |
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222 | call kernel_free |
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223 | add esp, 4 |
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1159 | hidnplayr | 224 | ret |
225 | |||
226 | |||
227 | |||
228 | |||
229 | |||
230 | ;------------------------------------------------------------- |
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231 | ; |
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232 | ; ETH_Handler: |
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233 | ; |
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234 | ; Handles all queued eth packets (called from kernel's main_loop) |
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235 | ; |
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236 | ; IN: / |
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237 | ; OUT: / |
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238 | ; |
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239 | ;------------------------------------------------------------- |
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240 | |||
241 | align 4 |
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1196 | hidnplayr | 242 | ETH_handler: |
1159 | hidnplayr | 243 | |
1249 | hidnplayr | 244 | get_from_queue ETH_IN_QUEUE, ETH_QUEUE_SIZE, eth_queue_entry.size, .gohome |
1159 | hidnplayr | 245 | |
1249 | hidnplayr | 246 | push ETH_handler |
247 | |||
248 | lodsd |
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249 | mov ebx, eax |
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250 | lodsd |
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251 | mov ecx, eax |
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252 | lodsd |
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253 | xchg eax, ecx |
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254 | push ecx |
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255 | push eax |
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256 | |||
1159 | hidnplayr | 257 | DEBUGF 1,"ETH_Handler - size: %u\n", ecx |
258 | cmp ecx, 60 ; check packet length |
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259 | jl .dump |
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260 | sub ecx, ETH_FRAME.Data |
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261 | |||
262 | lea edx, [eax + ETH_FRAME.Data] |
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263 | mov ax , [eax + ETH_FRAME.Type] |
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264 | |||
265 | cmp ax, ETHER_IPv4 |
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1196 | hidnplayr | 266 | je IPv4_handler |
1159 | hidnplayr | 267 | |
268 | cmp ax, ETHER_ARP |
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1196 | hidnplayr | 269 | je ARP_handler |
1159 | hidnplayr | 270 | |
271 | DEBUGF 1,"Unknown ethernet packet type %x\n", ax |
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272 | |||
273 | .dump: |
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274 | DEBUGF 1,"Dumping packet\n" |
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275 | call kernel_free |
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276 | add esp, 4 |
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277 | |||
278 | .gohome: |
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1249 | hidnplayr | 279 | ret ; return to get more from queue / to caller |
1159 | hidnplayr | 280 | |
281 | |||
282 | |||
283 | ;----------------------------------------------------------------- |
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284 | ; |
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1249 | hidnplayr | 285 | ; ETH_sender: |
1159 | hidnplayr | 286 | ; |
287 | ; This function sends an ethernet packet to the correct driver. |
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288 | ; |
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289 | ; IN: Pointer to buffer in [esp] |
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290 | ; size of buffer in [esp+4] |
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291 | ; pointer to device struct in ebx |
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292 | ; OUT: / |
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293 | ; |
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294 | ;----------------------------------------------------------------- |
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295 | |||
296 | align 4 |
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1249 | hidnplayr | 297 | ETH_sender: |
298 | DEBUGF 1,"ETH_Sender: queuing for device: %x, %u bytes\n", [esp], [esp + 4] |
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1159 | hidnplayr | 299 | |
1249 | hidnplayr | 300 | push ebx |
301 | mov esi, esp |
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302 | add_to_queue ETH_OUT_QUEUE, ETH_QUEUE_SIZE, eth_queue_entry.size, .fail |
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303 | DEBUGF 1,"Queued packet successfully\n" |
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304 | add esp, 3*4 |
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305 | ret |
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1159 | hidnplayr | 306 | |
1249 | hidnplayr | 307 | .fail: |
308 | DEBUGF 1,"ETH_OUT_QUEUE is full!\n" |
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309 | add esp, 4 |
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310 | call kernel_free |
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311 | add esp, 4 |
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1159 | hidnplayr | 312 | ret |
313 | |||
314 | |||
1249 | hidnplayr | 315 | |
316 | ;----------------------------------------------------------------- |
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317 | ; |
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318 | ; ETH_send_queued: |
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319 | ; |
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320 | ; IN: / |
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321 | ; OUT: / |
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322 | ; |
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323 | ;----------------------------------------------------------------- |
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324 | |||
1159 | hidnplayr | 325 | align 4 |
326 | ETH_send_queued: |
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327 | |||
1249 | hidnplayr | 328 | get_from_queue ETH_OUT_QUEUE, ETH_QUEUE_SIZE, eth_queue_entry.size, .gohome |
1159 | hidnplayr | 329 | |
1254 | hidnplayr | 330 | push ETH_send_queued ; this will cause the procedure to check for more packets |
331 | ; when a single packet is handled |
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1249 | hidnplayr | 332 | |
1254 | hidnplayr | 333 | mov ebx, [esi] |
334 | pushd [esi + 8] |
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335 | pushd [esi + 4] |
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1249 | hidnplayr | 336 | |
337 | DEBUGF 1,"dequeued packet for device %x\n", ebx |
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338 | |||
1254 | hidnplayr | 339 | call [ebx+ETH_DEVICE.transmit] ; we will return to get_from_queue macro after transmitting packet |
1159 | hidnplayr | 340 | call kernel_free |
341 | add esp, 4 ; pop (balance stack) |
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1249 | hidnplayr | 342 | |
1159 | hidnplayr | 343 | .gohome: |
344 | ret |
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345 | |||
1249 | hidnplayr | 346 | |
1159 | hidnplayr | 347 | ;--------------------------------------------------------------------------- |
348 | ; |
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349 | ; ETH_struc2dev |
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350 | ; |
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351 | ; IN: pointer to device struct in ebx |
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352 | ; |
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353 | ; OUT: edi is -1 on error, device number otherwise |
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354 | ; |
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355 | ;--------------------------------------------------------------------------- |
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356 | |||
357 | align 4 |
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358 | ETH_struc2dev: |
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359 | push eax ecx |
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360 | |||
361 | mov eax, ebx |
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362 | mov ecx, MAX_ETH_DEVICES |
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363 | mov edi, ETH_DRV_LIST |
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364 | |||
365 | repne scasd |
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366 | jnz .error |
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367 | |||
368 | sub edi, ETH_DRV_LIST+4 |
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369 | shr edi, 2 |
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370 | |||
371 | pop ecx eax |
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372 | ret |
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373 | .error: |
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374 | or edi, -1 |
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375 | pop ecx eax |
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376 | |||
377 | ret |
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378 | |||
379 | |||
380 | ;--------------------------------------------------------------------------- |
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381 | ; |
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382 | ; ETH_create_Packet |
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383 | ; |
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384 | ; IN: pointer to source mac in eax |
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385 | ; pointer to destination mac in ebx |
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386 | ; packet size in ecx |
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387 | ; device number in edx |
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388 | ; protocol in di |
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389 | ; |
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1206 | hidnplayr | 390 | ; OUT: edi is -1 on error, pointer to buffer otherwise |
1159 | hidnplayr | 391 | ; eax points to buffer start |
1206 | hidnplayr | 392 | ; ebx is pointer to device structure |
1159 | hidnplayr | 393 | ; ecx is unchanged (packet size of embedded data) |
1206 | hidnplayr | 394 | ; edx is size of complete buffer |
1159 | hidnplayr | 395 | ; esi points to procedure wich needs to be called to send packet |
396 | ; |
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397 | ;--------------------------------------------------------------------------- |
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398 | |||
399 | align 4 |
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1249 | hidnplayr | 400 | ETH_create_packet: |
1159 | hidnplayr | 401 | |
1206 | hidnplayr | 402 | DEBUGF 1,"Creating Ethernet Packet (size=%u): \n", ecx |
1159 | hidnplayr | 403 | |
1206 | hidnplayr | 404 | cmp ecx, 1500 |
1159 | hidnplayr | 405 | jg .exit |
406 | |||
407 | push ecx di eax ebx edx |
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408 | |||
409 | add ecx, ETH_FRAME.Data |
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410 | push ecx |
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411 | push ecx |
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412 | call kernel_alloc |
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413 | test eax, eax |
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414 | jz .pop_exit |
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415 | |||
416 | pop ecx |
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417 | pop edx |
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418 | |||
419 | mov edi, eax |
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420 | pop esi |
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421 | movsd |
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422 | movsw |
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423 | pop esi |
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424 | movsd |
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425 | movsw |
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426 | pop ax |
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427 | stosw |
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428 | |||
429 | lea eax, [edi - ETH_FRAME.Data] ; Set eax to buffer start |
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1206 | hidnplayr | 430 | mov edx, ecx ; Set ebx to complete buffer size |
1159 | hidnplayr | 431 | pop ecx |
1249 | hidnplayr | 432 | mov esi, ETH_sender |
1159 | hidnplayr | 433 | |
1206 | hidnplayr | 434 | xor ebx, ebx ;;;; TODO: Fixme |
435 | mov ebx, [ETH_DRV_LIST + ebx] |
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1159 | hidnplayr | 436 | |
1206 | hidnplayr | 437 | cmp edx, 46 + ETH_FRAME.Data ; If data size is less then 46, add padding bytes |
438 | jg .continue |
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439 | mov edx, 46 + ETH_FRAME.Data |
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440 | .continue: |
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441 | |||
442 | DEBUGF 1,"done: %x size:%u device:%x\n", eax, edx, ebx |
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1159 | hidnplayr | 443 | ret |
444 | |||
445 | .pop_exit: |
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1206 | hidnplayr | 446 | DEBUGF 1,"Out of ram space!!\n" |
1159 | hidnplayr | 447 | add esp, 18 |
1206 | hidnplayr | 448 | or edi,-1 |
449 | ret |
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450 | |||
1159 | hidnplayr | 451 | .exit: |
1206 | hidnplayr | 452 | DEBUGF 1,"Packet too large!\n" |
1159 | hidnplayr | 453 | or edi, -1 |
454 | ret |
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455 | |||
456 | |||
457 | |||
458 | ;--------------------------------------------------------------------------- |
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459 | ; |
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460 | ; ETH_API |
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461 | ; |
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462 | ; This function is called by system function 75 |
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463 | ; |
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464 | ; IN: subfunction number in bl |
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465 | ; device number in bh |
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466 | ; ecx, edx, .. depends on subfunction |
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467 | ; |
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468 | ; OUT: |
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469 | ; |
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470 | ;--------------------------------------------------------------------------- |
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471 | |||
472 | align 4 |
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473 | ETH_API: |
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474 | |||
475 | movzx eax, bh |
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476 | shl eax, 2 |
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477 | |||
478 | test bl, bl |
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479 | jz .packets_tx ; 0 |
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480 | dec bl |
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481 | jz .packets_rx ; 1 |
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482 | dec bl |
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483 | jz .bytes_tx ; 2 |
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484 | dec bl |
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485 | jz .bytes_rx ; 3 |
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486 | dec bl |
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487 | jz .read_mac ; 4 |
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488 | dec bl |
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489 | jz .write_mac ; 5 |
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490 | dec bl |
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491 | jz .in_queue ; 6 |
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492 | dec bl |
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493 | jz .out_queue ; 7 |
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494 | |||
495 | .error: |
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496 | mov eax, -1 |
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497 | ret |
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498 | |||
499 | .packets_tx: |
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500 | add eax, ETH_DRV_LIST |
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1171 | hidnplayr | 501 | mov eax, dword [eax] |
502 | mov eax, dword [eax + ETH_DEVICE.packets_tx] |
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503 | |||
1159 | hidnplayr | 504 | ret |
505 | |||
506 | .packets_rx: |
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507 | add eax, ETH_DRV_LIST |
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1171 | hidnplayr | 508 | mov eax, dword [eax] |
509 | mov eax, dword [eax + ETH_DEVICE.packets_rx] |
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1159 | hidnplayr | 510 | ret |
511 | |||
512 | .bytes_tx: |
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513 | add eax, ETH_DRV_LIST |
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1171 | hidnplayr | 514 | mov eax, dword [eax] |
1241 | clevermous | 515 | mov ebx, dword [eax + ETH_DEVICE.bytes_tx + 4] |
1174 | hidnplayr | 516 | mov eax, dword [eax + ETH_DEVICE.bytes_tx] |
517 | mov [esp+20+4], ebx ; TODO: fix this ugly code |
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1159 | hidnplayr | 518 | ret |
519 | |||
520 | .bytes_rx: |
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521 | add eax, ETH_DRV_LIST |
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1171 | hidnplayr | 522 | mov eax, dword [eax] |
1174 | hidnplayr | 523 | mov ebx, dword [eax + ETH_DEVICE.bytes_rx + 4] |
524 | mov eax, dword [eax + ETH_DEVICE.bytes_rx] |
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525 | mov [esp+20+4], ebx ; TODO: fix this ugly code |
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1159 | hidnplayr | 526 | ret |
527 | |||
1174 | hidnplayr | 528 | |
1159 | hidnplayr | 529 | .read_mac: |
530 | add eax, ETH_DRV_LIST |
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531 | mov eax, [eax] |
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532 | ; push eax |
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533 | ; call dword [eax + ETH_DEVICE.get_MAC] |
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534 | ; pop eax |
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535 | movzx ebx, word [eax + ETH_DEVICE.mac] |
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536 | mov eax, dword [eax + ETH_DEVICE.mac + 2] |
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1171 | hidnplayr | 537 | mov [esp+20+4], ebx ; TODO: fix this ugly code |
1159 | hidnplayr | 538 | ret |
539 | |||
540 | .write_mac: |
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541 | push ecx |
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542 | push dx |
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543 | add eax, ETH_DRV_LIST |
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544 | mov eax, [eax] |
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545 | mov eax, dword [eax + ETH_DEVICE.set_MAC] |
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546 | call eax |
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547 | ret |
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548 | |||
549 | .in_queue: |
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550 | add eax, ETH_IN_QUEUE |
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551 | mov eax, [eax + queue.size] |
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552 | ret |
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553 | |||
554 | .out_queue: |
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555 | add eax, ETH_OUT_QUEUE |
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556 | mov eax, [eax + queue.size] |
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557 | ret |