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| Rev 8997 | Rev 9148 | ||
|---|---|---|---|
| Line 1025... | Line 1025... | ||
| 1025 | ; Function |
1025 | ; Function |
| 1026 | ; transmit |
1026 | ; transmit |
| 1027 | ; Description |
1027 | ; Description |
| 1028 | ; Transmits a packet of data via the ethernet card |
1028 | ; Transmits a packet of data via the ethernet card |
| 1029 | ; |
1029 | ; |
| 1030 | ; Destroyed registers |
1030 | ; In: pointer to device structure in ebx |
| 1031 | ; eax, edx, esi, edi |
1031 | ; Out: eax = 0 on success |
| 1032 | ; |
1032 | ; |
| 1033 | ;*************************************************************************** |
1033 | ;*************************************************************************** |
| 1034 | 1034 | align 16 |
|
| 1035 | proc transmit stdcall bufferptr |
1035 | proc transmit stdcall bufferptr |
| Line 1036... | Line 1036... | ||
| 1036 | 1036 | ||
| 1037 | pushf |
- | |
| Line 1038... | Line 1037... | ||
| 1038 | cli |
1037 | spin_lock_irqsave |
| 1039 | 1038 | ||
| 1040 | mov esi, [bufferptr] |
1039 | mov esi, [bufferptr] |
| 1041 | DEBUGF 1,"Transmitting packet, buffer:%x, size:%u\n", [bufferptr], [esi + NET_BUFF.length] |
1040 | DEBUGF 1,"Transmitting packet, buffer:%x, size:%u\n", [bufferptr], [esi + NET_BUFF.length] |
| Line 1105... | Line 1104... | ||
| 1105 | 1104 | ||
| 1106 | inc [ebx + device.packets_tx] |
1105 | inc [ebx + device.packets_tx] |
| 1107 | add dword [ebx + device.bytes_tx], ecx |
1106 | add dword [ebx + device.bytes_tx], ecx |
| Line 1108... | Line 1107... | ||
| 1108 | adc dword [ebx + device.bytes_tx + 4], 0 |
1107 | adc dword [ebx + device.bytes_tx + 4], 0 |
| 1109 | 1108 | ||
| 1110 | popf |
1109 | spin_unlock_irqrestore |
| Line 1111... | Line 1110... | ||
| 1111 | xor eax, eax |
1110 | xor eax, eax |
| 1112 | ret |
1111 | ret |
| 1113 | 1112 | ||
| 1114 | .error: |
1113 | .error: |
| Line 1115... | Line 1114... | ||
| 1115 | DEBUGF 2, "TX packet error\n" |
1114 | DEBUGF 2, "TX packet error\n" |
| 1116 | inc [ebx + device.packets_tx_err] |
1115 | inc [ebx + device.packets_tx_err] |
| 1117 | invoke NetFree, [bufferptr] |
1116 | invoke NetFree, [bufferptr] |
| Line 1118... | Line 1117... | ||
| 1118 | 1117 | ||
| 1119 | popf |
1118 | spin_unlock_irqrestore |
| 1120 | or eax, -1 |
1119 | or eax, -1 |
| 1121 | ret |
1120 | ret |
| Line 1122... | Line 1121... | ||
| 1122 | 1121 | ||
| 1123 | .overrun: |
1122 | .overrun: |
| 1124 | DEBUGF 2, "TX overrun\n" |
1123 | DEBUGF 2, "TX overrun\n" |
| Line 1125... | Line 1124... | ||
| 1125 | inc [ebx + device.packets_tx_ovr] |
1124 | inc [ebx + device.packets_tx_ovr] |
| Line 1136... | Line 1135... | ||
| 1136 | ;;;;;;;;;;;;;;;;;;;;;;; |
1135 | ;;;;;;;;;;;;;;;;;;;;;;; |
| 1137 | ;; ;; |
1136 | ;; ;; |
| 1138 | ;; Interrupt handler ;; |
1137 | ;; Interrupt handler ;; |
| 1139 | ;; ;; |
1138 | ;; ;; |
| 1140 | ;;;;;;;;;;;;;;;;;;;;;;; |
1139 | ;;;;;;;;;;;;;;;;;;;;;;; |
| 1141 | - | ||
| 1142 | align 4 |
1140 | align 16 |
| 1143 | int_handler: |
1141 | int_handler: |
| Line 1144... | Line 1142... | ||
| 1144 | 1142 | ||
| Line -... | Line 1143... | ||
| - | 1143 | push ebx esi edi |
|
| 1145 | push ebx esi edi |
1144 | |
| Line 1146... | Line -... | ||
| 1146 | - | ||
| 1147 | DEBUGF 1,"INT\n" |
- | |
| 1148 | - | ||
| 1149 | ; find pointer of device wich made IRQ occur |
- | |
| 1150 | - | ||
| 1151 | mov ecx, [devices] |
1145 | mov ebx, [esp+4*4] |
| 1152 | test ecx, ecx |
- | |
| 1153 | jz .nothing |
- | |
| Line 1154... | Line 1146... | ||
| 1154 | mov esi, device_list |
1146 | DEBUGF 1,"INT for 0x%x\n", ebx |
| 1155 | .nextdevice: |
1147 | |
| 1156 | mov ebx, [esi] |
1148 | ; TODO? if we are paranoid, we can check that the value from ebx is present in the current device_list |
| - | 1149 | ||
| 1157 | 1150 | set_io [ebx + device.io_addr], 0 |
|
| 1158 | set_io [ebx + device.io_addr], 0 |
1151 | set_io [ebx + device.io_addr], REG_IntrStatus |
| 1159 | set_io [ebx + device.io_addr], REG_IntrStatus |
1152 | in ax, dx |
| 1160 | in ax, dx |
1153 | test ax, ax |
| 1161 | out dx, ax ; ACK all interrupts |
1154 | jz .nothing |
| 1162 | cmp ax, 0xffff ; if so, hardware is no longer present |
- | |
| 1163 | je .nothing |
- | |
| 1164 | test ax, ax |
- | |
| 1165 | jnz .got_it |
- | |
| 1166 | .continue: |
- | |
| 1167 | add esi, 4 |
1155 | cmp ax, 0xffff ; if so, hardware is no longer present |
| 1168 | dec ecx |
- | |
| 1169 | jnz .nextdevice |
- | |
| 1170 | .nothing: |
- | |
| Line 1171... | Line -... | ||
| 1171 | pop edi esi ebx |
- | |
| 1172 | xor eax, eax |
1156 | je .nothing ; |
| Line 1173... | Line 1157... | ||
| 1173 | 1157 | test ax, ax |
|
| 1174 | ret ; If no device was found, abort (The irq was probably for a device, not registered to this driver) |
1158 | jz .nothing |
| 1175 | 1159 | out dx, ax ; ACK all interrupts |
|
| 1176 | .got_it: |
1160 | |
| Line 1324... | Line 1308... | ||
| 1324 | xor eax, eax |
1308 | xor eax, eax |
| 1325 | inc eax |
1309 | inc eax |
| Line 1326... | Line 1310... | ||
| 1326 | 1310 | ||
| Line -... | Line 1311... | ||
| - | 1311 | ret |
|
| - | 1312 | ||
| - | 1313 | .nothing: |
|
| - | 1314 | pop edi esi ebx |
|
| - | 1315 | xor eax, eax |
|
| - | 1316 | ||
| Line 1327... | Line 1317... | ||
| 1327 | ret |
1317 | ret |
| 1328 | 1318 | ||