Rev 3619 | Go to most recent revision | Details | Last modification | View Log | RSS feed
Rev | Author | Line No. | Line |
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3545 | hidnplayr | 1 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
2 | ;; ;; |
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3 | ;; Copyright (C) KolibriOS team 2004-2013. All rights reserved. ;; |
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4 | ;; Distributed under terms of the GNU General Public License ;; |
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5 | ;; ;; |
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6 | ;; RTL8029/ne2000 driver for KolibriOS ;; |
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7 | ;; ;; |
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8 | ;; based on RTL8029.asm driver for menuetos ;; |
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9 | ;; and realtek8029.asm for SolarOS by Eugen Brasoveanu ;; |
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10 | ;; ;; |
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11 | ;; Written by hidnplayr@kolibrios.org ;; |
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12 | ;; with help from CleverMouse ;; |
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13 | ;; ;; |
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14 | ;; GNU GENERAL PUBLIC LICENSE ;; |
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15 | ;; Version 2, June 1991 ;; |
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16 | ;; ;; |
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17 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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18 | |||
19 | format MS COFF |
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20 | |||
21 | API_VERSION = 0x01000100 |
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22 | DRIVER_VERSION = 5 |
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23 | |||
24 | MAX_DEVICES = 16 |
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25 | |||
26 | DEBUG = 1 |
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27 | __DEBUG__ = 1 |
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28 | __DEBUG_LEVEL__ = 2 |
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29 | |||
30 | include '../proc32.inc' |
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31 | include '../imports.inc' |
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32 | include '../fdo.inc' |
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33 | include '../netdrv.inc' |
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34 | |||
35 | virtual at ebx |
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36 | |||
37 | device: |
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38 | |||
39 | ETH_DEVICE |
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40 | |||
41 | .io_addr dd ? |
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42 | .irq_line db ? |
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43 | .pci_bus dd ? |
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44 | .pci_dev dd ? |
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45 | |||
46 | .flags db ? |
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47 | .vendor db ? |
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48 | |||
49 | .memsize db ? |
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50 | .rx_start db ? |
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51 | .tx_start db ? |
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52 | .bmem dd ? |
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53 | .rmem dd ? |
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54 | |||
55 | .size = $ - device |
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56 | |||
57 | end virtual |
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58 | |||
59 | |||
60 | public START |
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61 | public service_proc |
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62 | public version |
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63 | |||
64 | P0_COMMAND = 0x00 |
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65 | P0_PSTART = 0x01 |
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66 | P0_PSTOP = 0x02 |
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67 | P0_BOUND = 0x03 |
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68 | P0_TSR = 0x04 |
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69 | P0_TPSR = 0x04 |
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70 | P0_TBCR0 = 0x05 |
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71 | P0_TBCR1 = 0x06 |
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72 | P0_ISR = 0x07 |
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73 | P0_RSAR0 = 0x08 |
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74 | P0_RSAR1 = 0x09 |
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75 | P0_RBCR0 = 0x0A |
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76 | P0_RBCR1 = 0x0B |
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77 | P0_RSR = 0x0C |
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78 | P0_RCR = 0x0C |
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79 | P0_TCR = 0x0D |
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80 | P0_DCR = 0x0E |
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81 | P0_IMR = 0x0F |
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82 | |||
83 | P1_COMMAND = 0x00 |
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84 | P1_PAR0 = 0x01 |
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85 | P1_PAR1 = 0x02 |
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86 | P1_PAR2 = 0x03 |
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87 | P1_PAR3 = 0x04 |
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88 | P1_PAR4 = 0x05 |
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89 | P1_PAR5 = 0x06 |
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90 | P1_CURR = 0x07 |
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91 | P1_MAR0 = 0x08 |
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92 | |||
93 | CMD_PS0 = 0x00 ; Page 0 select |
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94 | CMD_PS1 = 0x40 ; Page 1 select |
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95 | CMD_PS2 = 0x80 ; Page 2 select |
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96 | CMD_RD2 = 0x20 ; Remote DMA control |
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97 | CMD_RD1 = 0x10 |
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98 | CMD_RD0 = 0x08 |
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99 | CMD_TXP = 0x04 ; transmit packet |
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100 | CMD_STA = 0x02 ; start |
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101 | CMD_STP = 0x01 ; stop |
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102 | |||
103 | CMD_RDMA_READ = 001b shl 3 |
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104 | CMD_RDMA_WRITE = 010b shl 3 |
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105 | CMD_RDMA_SEND_PACKET = 011b shl 3 |
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106 | CMD_RDMA_ABORT = 100b shl 3 ; really is 1xx, Abort/Complete Remote DMA |
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107 | ; RDMA_MASK = 111b shl 3 ; internal, mask |
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108 | |||
109 | RCR_MON = 0x20 ; monitor mode |
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110 | |||
111 | DCR_FT1 = 0x40 |
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112 | DCR_LS = 0x08 ; Loopback select |
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113 | DCR_WTS = 0x01 ; Word transfer select |
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114 | |||
115 | ISR_PRX = 0x01 ; successful recv |
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116 | ISR_PTX = 0x02 ; successful xmit |
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117 | ISR_RXE = 0x04 ; receive error |
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118 | ISR_TXE = 0x08 ; transmit error |
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119 | ISR_OVW = 0x10 ; Overflow |
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120 | ISR_CNT = 0x20 ; Counter overflow |
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121 | ISR_RDC = 0x40 ; Remote DMA complete |
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122 | ISR_RST = 0x80 ; reset |
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123 | |||
124 | IRQ_MASK = ISR_PRX ;+ ISR_PTX ;+ ISR_RDC + ISR_PTX + ISR_TXE |
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125 | |||
126 | RSTAT_PRX = 1 shl 0 ; successful recv |
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127 | RSTAT_CRC = 1 shl 1 ; CRC error |
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128 | RSTAT_FAE = 1 shl 2 ; Frame alignment error |
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129 | RSTAT_OVER = 1 shl 3 ; FIFO overrun |
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130 | |||
131 | TXBUF_SIZE = 6 |
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132 | RXBUF_END = 32 |
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133 | PAGE_SIZE = 256 |
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134 | |||
135 | ETH_ZLEN = 60 |
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136 | ETH_FRAME_LEN = 1514 |
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137 | |||
138 | FLAG_PIO = 1 shl 0 |
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139 | FLAG_16BIT = 1 shl 1 |
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140 | |||
141 | VENDOR_NONE = 0 |
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142 | VENDOR_WD = 1 |
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143 | VENDOR_NOVELL = 2 |
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144 | VENDOR_3COM = 3 |
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145 | |||
146 | NE_ASIC = 0x10 |
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147 | NE_RESET = 0x0F ; Used to reset card |
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148 | NE_DATA = 0x00 ; Used to read/write NIC mem |
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149 | |||
150 | MEM_8k = 32 |
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151 | MEM_16k = 64 |
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152 | MEM_32k = 128 |
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153 | |||
154 | ISA_MAX_ADDR = 0x400 |
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155 | |||
156 | |||
157 | |||
158 | section '.flat' code readable align 16 |
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159 | |||
160 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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161 | ;; |
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162 | ;; proc START |
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163 | ;; |
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164 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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165 | |||
166 | align 4 |
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167 | proc START stdcall, state:dword |
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168 | |||
169 | cmp [state], 1 |
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170 | jne .exit |
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171 | .entry: |
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172 | DEBUGF 2,"Registering %s driver\n", my_service |
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173 | stdcall RegService, my_service, service_proc |
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174 | ret |
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175 | .fail: |
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176 | .exit: |
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177 | xor eax, eax |
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178 | ret |
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179 | |||
180 | endp |
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181 | |||
182 | |||
183 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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184 | ;; |
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185 | ;; proc SERVICE_PROC |
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186 | ;; |
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187 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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188 | |||
189 | align 4 |
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190 | proc service_proc stdcall, ioctl:dword |
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191 | |||
192 | mov edx, [ioctl] |
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193 | mov eax, [IOCTL.io_code] |
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194 | |||
195 | ;------------------------------------------------------ |
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196 | ;--------------- |
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197 | cmp eax, 0 ;SRV_GETVERSION |
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198 | jne @F ;--------------- |
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199 | |||
200 | cmp [IOCTL.out_size], 4 |
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201 | jb .fail |
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202 | mov eax, [IOCTL.output] |
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203 | mov [eax], dword API_VERSION |
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204 | |||
205 | xor eax, eax |
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206 | ret |
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207 | |||
208 | ;------------------------------------------------------ |
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209 | @@: ;--------- |
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210 | cmp eax, 1 ;SRV_HOOK |
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211 | jne @F ;--------- |
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212 | |||
213 | DEBUGF 2,"Checking if device is already listed..\n" |
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214 | |||
215 | mov eax, [IOCTL.input] |
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216 | |||
217 | cmp [IOCTL.inp_size], 3 |
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218 | jb .fail |
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219 | cmp byte [eax], 1 |
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220 | je .pci |
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221 | |||
222 | cmp [IOCTL.inp_size], 4 |
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223 | jb .fail |
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224 | cmp byte [eax], 0 |
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225 | je .isa |
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226 | |||
227 | jmp .fail |
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228 | |||
229 | .pci: |
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230 | |||
231 | ; check if the device is already listed |
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232 | |||
233 | mov esi, device_list |
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234 | mov ecx, [devices] |
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235 | test ecx, ecx |
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236 | jz .firstdevice_pci |
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237 | |||
238 | mov ax, [eax+1] ; get the pci bus and device numbers |
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239 | .nextdevice: |
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240 | mov ebx, [esi] |
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241 | cmp al, byte[device.pci_bus] |
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242 | jne @f |
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243 | cmp ah, byte[device.pci_dev] |
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244 | je .find_devicenum ; Device is already loaded, let's find it's device number |
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245 | @@: |
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246 | add esi, 4 |
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247 | loop .nextdevice |
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248 | |||
249 | .firstdevice_pci: |
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250 | call create_new_struct |
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251 | |||
252 | mov eax, [IOCTL.input] |
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253 | movzx ecx, byte[eax+1] |
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254 | mov [device.pci_bus], ecx |
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255 | movzx ecx, byte[eax+2] |
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256 | mov [device.pci_dev], ecx |
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257 | |||
258 | ; Now, it's time to find the base io addres of the PCI device |
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259 | |||
260 | PCI_find_io |
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261 | |||
262 | ; We've found the io address, find IRQ now |
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263 | |||
264 | PCI_find_irq |
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265 | |||
266 | jmp .hook |
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267 | |||
268 | .isa: |
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269 | |||
270 | mov esi, device_list |
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271 | mov ecx, [devices] |
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272 | test ecx, ecx |
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273 | jz .firstdevice_isa |
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274 | mov al, [eax+3] |
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275 | movzx edi, word [eax+1] |
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276 | .nextdevice_isa: |
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277 | mov ebx, [esi] |
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278 | cmp edi, [device.io_addr] |
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279 | jne .maybenext |
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280 | cmp al, [device.irq_line] |
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281 | je find_device_num |
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282 | .maybenext: |
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283 | add esi, 4 |
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284 | loop .nextdevice_isa |
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285 | |||
286 | |||
287 | |||
288 | .firstdevice_isa: |
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289 | call create_new_struct |
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290 | |||
291 | mov eax, [IOCTL.input] |
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292 | movzx ecx, word [eax+1] |
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293 | mov [device.io_addr], ecx |
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294 | mov cl, [eax+3] |
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295 | mov [device.irq_line], cl |
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296 | |||
297 | .hook: |
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298 | |||
299 | DEBUGF 2,"Hooking into device, dev:%x, bus:%x, irq:%x, addr:%x\n",\ |
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300 | [device.pci_dev]:1,[device.pci_bus]:1,[device.irq_line]:1,[device.io_addr]:4 |
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301 | |||
302 | call probe ; this function will output in eax |
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303 | test eax, eax |
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304 | jnz .err ; If an error occured, exit |
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305 | |||
306 | mov eax, [devices] |
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307 | mov [device_list+4*eax], ebx |
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308 | inc [devices] |
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309 | |||
310 | mov [device.type], NET_TYPE_ETH |
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311 | call NetRegDev |
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312 | |||
313 | cmp eax, -1 |
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314 | jz .err |
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315 | ret |
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316 | |||
317 | |||
318 | ; If the device was already loaded, find the device number and return it in eax |
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319 | |||
320 | .find_devicenum: |
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321 | DEBUGF 1,"Trying to find device number of already registered device\n" |
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322 | call NetPtrToNum ; This kernel procedure converts a pointer to device struct in ebx |
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323 | ; into a device number in edi |
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324 | mov eax, edi ; Application wants it in eax instead |
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325 | DEBUGF 1,"Kernel says: %u\n", eax |
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326 | ret |
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327 | |||
328 | .err: |
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329 | DEBUGF 1,"Failed, removing device structure\n" |
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330 | stdcall KernelFree, ebx |
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331 | |||
332 | jmp .fail |
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333 | |||
334 | ;------------------------------------------------------ |
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335 | @@: |
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336 | .fail: |
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337 | or eax, -1 |
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338 | ret |
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339 | |||
340 | ;------------------------------------------------------ |
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341 | endp |
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342 | |||
343 | |||
344 | create_new_struct: |
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345 | |||
346 | cmp [devices], MAX_DEVICES |
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347 | jae .fail |
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348 | |||
349 | allocate_and_clear ebx, device.size, .fail ; Allocate the buffer for device structure |
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350 | |||
351 | mov [device.reset], reset |
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352 | mov [device.transmit], transmit |
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353 | mov [device.unload], unload |
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354 | mov [device.name], my_service |
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355 | |||
356 | ret |
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357 | |||
358 | .fail: |
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359 | add esp, 4 ; return to caller of 'hook' |
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360 | or eax, -1 |
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361 | ret |
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362 | |||
363 | find_device_num: |
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364 | |||
365 | DEBUGF 1,"Trying to find device number of already registered device\n" |
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366 | mov ebx, eax |
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367 | call NetPtrToNum ; This kernel procedure converts a pointer to device struct in ebx |
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368 | ; into a device number in edi |
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369 | mov eax, edi ; Application wants it in eax instead |
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370 | DEBUGF 1,"Kernel says: %u\n", eax |
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371 | ret |
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372 | |||
373 | |||
374 | ;;/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\;; |
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375 | ;; ;; |
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376 | ;; Actual Hardware dependent code starts here ;; |
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377 | ;; ;; |
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378 | ;;/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\/\;; |
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379 | |||
380 | |||
381 | unload: ; TODO |
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382 | or eax, -1 |
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383 | ret |
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384 | |||
385 | |||
386 | |||
387 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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388 | ;; |
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389 | ;; probe: enables the device and clears the rx buffer |
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390 | ;; |
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391 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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392 | |||
393 | probe: |
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394 | mov [device.vendor], VENDOR_NONE |
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395 | mov [device.bmem], 0 |
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396 | |||
397 | DEBUGF 2,"Trying 16-bit mode\n" |
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398 | |||
399 | mov [device.flags], FLAG_16BIT + FLAG_PIO |
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400 | mov [device.memsize], MEM_32k |
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401 | mov [device.tx_start], 64 |
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402 | mov [device.rx_start], TXBUF_SIZE + 64 |
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403 | |||
404 | set_io 0 |
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405 | set_io P0_DCR |
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406 | mov al, DCR_WTS + DCR_FT1 + DCR_LS ; word transfer select + |
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407 | out dx, al |
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408 | |||
409 | set_io P0_PSTART |
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410 | mov al, MEM_16k |
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411 | out dx, al |
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412 | |||
413 | set_io P0_PSTOP |
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414 | mov al, MEM_32k |
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415 | out dx, al |
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416 | |||
417 | mov esi, my_service |
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418 | mov di, 16384 |
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419 | mov cx, 14 |
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420 | call PIO_write |
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421 | |||
422 | mov si, 16384 |
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423 | mov cx, 14 |
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424 | sub esp, 16 |
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425 | mov edi, esp |
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426 | call PIO_read |
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427 | |||
428 | mov esi, esp |
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429 | add esp, 16 |
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430 | mov edi, my_service |
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431 | mov ecx, 13 |
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432 | repe cmpsb |
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433 | je ep_set_vendor |
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434 | |||
435 | DEBUGF 2,"16-bit mode failed\n" |
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436 | DEBUGF 2,"Trying 8-bit mode\n" |
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437 | |||
438 | mov [device.flags], FLAG_PIO |
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439 | mov [device.memsize], MEM_16k |
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440 | mov [device.tx_start], 32 |
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441 | mov [device.rx_start], TXBUF_SIZE + 32 |
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442 | |||
443 | set_io NE_ASIC + NE_RESET |
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444 | in al, dx |
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445 | out dx, al |
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446 | |||
447 | in al, 0x84 |
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448 | |||
449 | set_io P0_COMMAND |
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450 | mov al, CMD_RD2 + CMD_STP |
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451 | out dx, al |
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452 | |||
453 | set_io P0_RCR |
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454 | mov al, RCR_MON |
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455 | out dx, al |
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456 | |||
457 | set_io P0_DCR |
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458 | mov al, DCR_FT1 + DCR_LS |
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459 | out dx, al |
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460 | |||
461 | set_io P0_PSTART |
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462 | mov al, MEM_8k |
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463 | out dx, al |
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464 | |||
465 | set_io P0_PSTOP |
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466 | mov al, MEM_16k |
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467 | out dx, al |
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468 | |||
469 | mov esi, my_service |
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470 | mov di, 8192 |
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471 | mov cx, 14 |
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472 | call PIO_write |
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473 | |||
474 | mov si, 8192 |
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475 | mov cx, 14 |
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476 | sub esp, 16 |
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477 | mov edi, esp |
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478 | call PIO_read |
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479 | |||
480 | mov esi, my_service |
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481 | mov edi, esp |
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482 | add esp, 16 |
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483 | mov ecx, 13 |
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484 | repe cmpsb |
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485 | je ep_set_vendor |
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486 | |||
487 | DEBUGF 2,"This is not a valid ne2000 device!\n" |
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488 | or eax, -1 |
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489 | ret |
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490 | |||
491 | |||
492 | ep_set_vendor: |
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493 | |||
494 | DEBUGF 2,"Mode ok\n" |
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495 | |||
496 | cmp [device.io_addr], ISA_MAX_ADDR |
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497 | jbe .isa |
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498 | |||
499 | DEBUGF 2,"Card is using PCI bus\n" |
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500 | |||
501 | mov [device.vendor], VENDOR_NOVELL ;;; FIXME |
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502 | jmp ep_check_have_vendor |
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503 | |||
504 | .isa: |
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505 | DEBUGF 2,"Card is using ISA bus\n" |
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506 | |||
507 | mov [device.vendor], VENDOR_NOVELL |
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508 | |||
509 | ep_check_have_vendor: |
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510 | |||
511 | |||
512 | mov al, [device.vendor] |
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513 | cmp al, VENDOR_NONE |
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514 | ; je exit |
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515 | |||
516 | cmp al, VENDOR_3COM |
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517 | je reset |
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518 | |||
519 | mov eax, [device.bmem] |
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520 | mov [device.rmem], eax |
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521 | |||
522 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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523 | ;; |
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524 | ;; reset: Place the chip into a virgin state |
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525 | ;; |
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526 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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527 | |||
528 | reset: |
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529 | DEBUGF 2,"Resetting device\n" |
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530 | |||
531 | ; attach int handler |
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532 | movzx eax, [device.irq_line] |
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533 | DEBUGF 1,"Attaching int handler to irq %x\n", eax:1 |
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534 | stdcall AttachIntHandler, eax, int_handler, dword 0 |
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535 | |||
536 | ; Stop card + DMA |
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537 | set_io 0 |
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538 | ; set_io P0_COMMAND |
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539 | mov al, CMD_PS0 + CMD_RDMA_ABORT + CMD_STP |
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540 | out dx, al |
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541 | |||
542 | ; initialize DCR |
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543 | set_io P0_DCR |
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544 | mov al, DCR_FT1 + DCR_LS |
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545 | test [device.flags], FLAG_16BIT |
||
546 | jz @f |
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547 | or al, DCR_WTS ; word transfer select |
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548 | @@: |
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549 | out dx, al |
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550 | |||
551 | ; clear remote bytes count |
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552 | set_io P0_RBCR0 |
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553 | xor al, al |
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554 | out dx, al |
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555 | |||
556 | set_io P0_RBCR1 |
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557 | out dx, al |
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558 | |||
559 | ; initialize Receive configuration register (until all init is done) |
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560 | set_io P0_RCR |
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561 | mov al, 0x20 ; monitor mode |
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562 | out dx, al |
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563 | |||
564 | ; transmit configuration register to monitor mode (until all ini is done) |
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565 | set_io P0_TCR |
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566 | mov al, 2 ; internal loopback |
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567 | out dx, al |
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568 | |||
569 | ; clear interupt status |
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570 | set_io P0_ISR |
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571 | mov al, 0xff |
||
572 | out dx, al |
||
573 | |||
574 | ; clear IRQ mask ;;;;; CHECKME ;;;;; |
||
575 | set_io P0_IMR |
||
576 | xor al, al |
||
577 | out dx, al |
||
578 | |||
579 | ; set transmit pointer |
||
580 | set_io P0_TPSR |
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581 | mov al, [device.tx_start] |
||
582 | out dx, al |
||
583 | |||
584 | ; set pagestart pointer |
||
585 | set_io P0_PSTART |
||
586 | mov al, [device.rx_start] |
||
587 | out dx, al |
||
588 | |||
589 | ; set pagestop pointer |
||
590 | set_io P0_PSTOP |
||
591 | mov al, [device.memsize] |
||
592 | out dx, al |
||
593 | |||
594 | ; set boundary pointer |
||
595 | set_io P0_BOUND |
||
596 | mov al, [device.memsize] |
||
597 | dec al |
||
598 | out dx, al |
||
599 | |||
600 | ; set curr pointer |
||
601 | set_io P0_COMMAND |
||
602 | mov al, CMD_PS1 ;+ CMD_RD2 + CMD_STP ; page 1, stop mode |
||
603 | out dx, al |
||
604 | |||
605 | set_io P1_CURR |
||
606 | mov al, [device.rx_start] |
||
607 | out dx, al |
||
608 | |||
609 | set_io P0_COMMAND |
||
610 | mov al, CMD_PS0 ;+ CMD_RD2 + CMD_STA ; go to page 0, start mode |
||
611 | out dx, al |
||
612 | |||
613 | ; Read MAC address and set it to registers |
||
614 | call read_mac |
||
615 | push .macret |
||
616 | sub esp, 6 |
||
617 | lea esi, [device.mac] |
||
618 | mov edi, esp |
||
619 | movsd |
||
620 | movsw |
||
621 | jmp write_mac |
||
622 | .macret: |
||
623 | |||
624 | ; set IRQ mask |
||
625 | set_io 0 |
||
626 | set_io P0_IMR |
||
627 | mov al, IRQ_MASK |
||
628 | out dx, al |
||
629 | |||
630 | ; start mode |
||
631 | set_io P0_COMMAND |
||
632 | mov al, CMD_STA |
||
633 | out dx, al |
||
634 | |||
635 | ; clear transmit control register |
||
636 | set_io P0_TCR |
||
637 | xor al, al ; no loopback |
||
638 | out dx, al |
||
639 | |||
640 | ; set receive control register ;;;; |
||
641 | set_io P0_RCR |
||
642 | mov al, 4 ; accept broadcast |
||
643 | out dx, al |
||
644 | |||
645 | ; clear packet/byte counters |
||
646 | xor eax, eax |
||
647 | lea edi, [device.bytes_tx] |
||
648 | mov ecx, 6 |
||
649 | rep stosd |
||
650 | |||
651 | ; Set the mtu, kernel will be able to send now |
||
652 | mov [device.mtu], ETH_FRAME_LEN |
||
653 | |||
654 | ; Set link state to unknown |
||
655 | mov [device.state], ETH_LINK_UNKOWN |
||
656 | |||
657 | ; Indicate that we have successfully reset the card |
||
658 | xor eax, eax |
||
659 | DEBUGF 2,"Done!\n" |
||
660 | |||
661 | ret |
||
662 | |||
663 | |||
664 | |||
665 | ;*************************************************************************** |
||
666 | ; Function |
||
667 | ; transmit |
||
668 | ; buffer in [esp+4], size in [esp+8], pointer to device struct in ebx |
||
669 | ;*************************************************************************** |
||
670 | |||
671 | align 4 |
||
672 | transmit: |
||
673 | |||
674 | mov esi, [esp + 4] |
||
675 | mov ecx, [esp + 8] |
||
676 | DEBUGF 2,"Transmitting packet, buffer:%x, size:%u\n",esi, ecx |
||
677 | DEBUGF 2,"To: %x-%x-%x-%x-%x-%x From: %x-%x-%x-%x-%x-%x Type:%x%x\n",\ |
||
678 | [esi+0]:2,[esi+1]:2,[esi+2]:2,[esi+3]:2,[esi+4]:2,[esi+5]:2,[esi+6]:2,[esi+7]:2,[esi+8]:2,[esi+9]:2,[esi+10]:2,[esi+11]:2,[esi+13]:2,[esi+12]:2 |
||
679 | |||
680 | cmp ecx, ETH_FRAME_LEN |
||
681 | ja .err ; packet is too long |
||
682 | cmp ecx, ETH_ZLEN |
||
683 | jb .err ; packet is too short |
||
684 | |||
685 | movzx edi, [device.tx_start] |
||
686 | shl edi, 8 |
||
687 | push cx |
||
688 | call PIO_write |
||
689 | pop cx |
||
690 | |||
691 | set_io 0 |
||
692 | ; set_io P0_COMMAND |
||
693 | mov al, CMD_PS0 + CMD_RD2 + CMD_STA |
||
694 | out dx, al |
||
695 | |||
696 | set_io P0_TPSR |
||
697 | mov al, [device.tx_start] |
||
698 | out dx, al |
||
699 | |||
700 | set_io P0_TBCR0 |
||
701 | mov al, cl |
||
702 | out dx, al |
||
703 | |||
704 | set_io P0_TBCR1 |
||
705 | mov al, ch |
||
706 | out dx, al |
||
707 | |||
708 | set_io P0_COMMAND |
||
709 | mov al, CMD_PS0 + CMD_TXP + CMD_RD2 + CMD_STA |
||
710 | out dx, al |
||
711 | |||
712 | DEBUGF 2," - Packet Sent!\n" |
||
713 | |||
714 | inc [device.packets_tx] |
||
715 | mov eax, [esp + 8] ; Get packet size in eax |
||
716 | |||
717 | add dword [device.bytes_tx], eax |
||
718 | adc dword [device.bytes_tx + 4], 0 |
||
719 | |||
720 | stdcall KernelFree, [esp+4] |
||
721 | xor eax, eax |
||
722 | ret 8 |
||
723 | |||
724 | .err: |
||
725 | DEBUGF 2," - Error!\n" |
||
726 | |||
727 | or eax, -1 |
||
728 | stdcall KernelFree, [esp+4] |
||
729 | ret 8 |
||
730 | |||
731 | |||
732 | |||
733 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
||
734 | ; |
||
735 | ; Interrupt handler |
||
736 | ; |
||
737 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
||
738 | |||
739 | align 4 |
||
740 | int_handler: |
||
741 | |||
742 | push ebx esi edi |
||
743 | |||
744 | DEBUGF 1,"\n%s int\n", my_service |
||
745 | |||
746 | ; find pointer of device wich made INT occur |
||
747 | |||
748 | mov ecx, [devices] |
||
749 | test ecx, ecx |
||
750 | jz .nothing |
||
751 | mov esi, device_list |
||
752 | .nextdevice: |
||
753 | mov ebx, [esi] |
||
754 | |||
755 | set_io 0 |
||
756 | ; set_io P0_COMMAND |
||
757 | mov al, CMD_PS0 |
||
758 | out dx, al |
||
759 | |||
760 | set_io P0_ISR |
||
761 | in al, dx |
||
762 | test al, al |
||
763 | jnz .got_it |
||
764 | .continue: |
||
765 | add esi, 4 |
||
766 | dec ecx |
||
767 | jnz .nextdevice |
||
768 | .nothing: |
||
769 | pop edi esi ebx |
||
770 | xor eax, eax |
||
771 | |||
772 | ret |
||
773 | |||
774 | .got_it: |
||
775 | |||
776 | DEBUGF 1,"Device=%x status=%x\n", ebx, eax:2 |
||
777 | |||
778 | push ebx |
||
779 | |||
780 | test al, ISR_PRX ; packet received ok ? |
||
781 | jz .no_rx |
||
782 | |||
783 | test [device.flags], FLAG_PIO |
||
784 | jz .no_rx ; FIXME: Only PIO mode supported for now |
||
785 | |||
786 | ; |
||
787 | |||
788 | pushd .no_rx |
||
789 | |||
790 | ; allocate a buffer |
||
791 | |||
792 | stdcall KernelAlloc, ETH_FRAME_LEN |
||
793 | test eax, eax |
||
794 | jz .fail_2 |
||
795 | pushd 0 |
||
796 | push eax |
||
797 | |||
798 | ; read offset for current packet from device |
||
799 | |||
800 | set_io 0 |
||
801 | set_io P0_BOUND ; boundary ptr is offset to next packet we need to read. |
||
802 | in al, dx |
||
803 | inc al |
||
804 | |||
805 | cmp al, [device.memsize] |
||
806 | jb @f |
||
807 | mov al, [device.rx_start] |
||
808 | @@: |
||
809 | mov ch, al |
||
810 | |||
811 | set_io P0_COMMAND |
||
812 | mov al, CMD_PS1 |
||
813 | out dx, al |
||
814 | |||
815 | set_io P1_CURR |
||
816 | in al, dx ; get current page in cl |
||
817 | mov cl, al |
||
818 | |||
819 | set_io P1_COMMAND |
||
820 | mov al, CMD_PS0 |
||
821 | out dx, al |
||
822 | |||
823 | cmp cl, [device.memsize] |
||
824 | jb @f |
||
825 | mov cl, [device.rx_start] |
||
826 | @@: |
||
827 | |||
828 | cmp cl, ch |
||
829 | je .fail |
||
830 | |||
831 | movzx esi, ch ; we are using 256 byte pages |
||
832 | shl esi, 8 ; esi now holds the offset for current packet |
||
833 | |||
834 | ; Get packet header in eax |
||
835 | |||
836 | sub esp, 4 ; reserve 4 bytes on stack to put packet header in |
||
837 | mov edi, esp |
||
838 | mov cx, 4 |
||
839 | call PIO_read |
||
840 | |||
841 | mov ecx, [esp] ; ecx now contains packet header |
||
842 | |||
843 | ; check if packet is ok |
||
844 | |||
845 | test ecx, RSTAT_PRX |
||
846 | jz .fail_3 |
||
847 | |||
848 | ; calculate packet length in ecx |
||
849 | |||
850 | shr ecx, 16 |
||
851 | sub ecx, 4 ; CRC doesnt count as data byte |
||
852 | mov [esp + 4 + 4], ecx |
||
853 | |||
854 | ; check if packet size is ok |
||
855 | |||
856 | cmp ecx, ETH_ZLEN |
||
857 | jb .fail_3 |
||
858 | cmp ecx, ETH_FRAME_LEN |
||
859 | ja .fail_3 |
||
860 | |||
861 | ; update stats |
||
862 | |||
863 | DEBUGF 2,"Received %u bytes\n", ecx |
||
864 | |||
865 | add dword[device.bytes_rx], ecx |
||
866 | adc dword[device.bytes_rx + 4], 0 |
||
867 | inc [device.packets_rx] |
||
868 | |||
869 | ; update read and write pointers |
||
870 | |||
871 | add esi, 4 |
||
872 | mov edi, [esp + 4] |
||
873 | |||
874 | ; now check if we can read all data at once (if we cross the end boundary, we need to wrap back to the beginning) |
||
875 | |||
876 | xor eax, eax |
||
877 | mov ah, [device.memsize] |
||
878 | sub eax, esi |
||
879 | cmp ecx, eax ; eax = number of bytes till end of buffer, ecx = bytes we need to read |
||
880 | jbe .no_wrap |
||
881 | |||
882 | DEBUGF 2,"WRAP!\n" |
||
883 | |||
884 | ; Read first part |
||
885 | |||
886 | sub ecx, eax |
||
887 | push ecx |
||
888 | mov ecx, eax |
||
889 | |||
890 | call PIO_read ; Read the data |
||
891 | |||
892 | ; update pointers |
||
893 | |||
894 | add edi, ecx |
||
895 | pop ecx |
||
896 | |||
897 | movzx esi, [device.rx_start] |
||
898 | shl esi, 8 |
||
899 | |||
900 | ; now read second part (or only part) |
||
901 | |||
902 | .no_wrap: |
||
903 | call PIO_read ; Read the data |
||
904 | |||
905 | ; update boundary pointer |
||
906 | |||
907 | pop eax |
||
908 | mov al, ah |
||
909 | cmp al, [device.rx_start] |
||
910 | jne @f |
||
911 | mov al, [device.memsize] |
||
912 | @@: |
||
913 | |||
914 | set_io 0 |
||
915 | set_io P0_BOUND |
||
916 | dec al |
||
917 | out dx, al |
||
918 | |||
919 | ; now send the data to the kernel |
||
920 | |||
921 | jmp Eth_input |
||
922 | |||
923 | .fail_3: |
||
924 | add esp, 4 |
||
925 | .fail: |
||
926 | add esp, 8 |
||
927 | .fail_2: |
||
928 | |||
929 | |||
930 | .no_rx: |
||
931 | pop ebx |
||
932 | DEBUGF 2,"done\n" |
||
933 | |||
934 | set_io 0 |
||
935 | set_io P0_ISR |
||
936 | mov al, 0xff |
||
937 | out dx, al |
||
938 | |||
939 | pop edi esi ebx |
||
940 | |||
941 | ret |
||
942 | |||
943 | |||
944 | |||
945 | |||
946 | |||
947 | ;;;;;;;;;;;;;;;;;;;;;;; |
||
948 | ;; ;; |
||
949 | ;; Write MAC address ;; |
||
950 | ;; ;; |
||
951 | ;;;;;;;;;;;;;;;;;;;;;;; |
||
952 | |||
953 | align 4 |
||
954 | write_mac: ; in: mac on stack (6 bytes) |
||
955 | |||
956 | DEBUGF 1,"Writing MAC\n" |
||
957 | |||
958 | set_io 0 |
||
959 | mov al, CMD_PS1; + CMD_RD2 + CMD_STP |
||
960 | out dx, al |
||
961 | |||
962 | set_io P1_PAR0 |
||
963 | mov esi, esp |
||
964 | mov cx, 6 |
||
965 | @@: |
||
966 | lodsb |
||
967 | out dx, al |
||
968 | inc dx |
||
969 | loopw @r |
||
970 | |||
971 | add esp, 6 |
||
972 | |||
973 | ; Notice this procedure does not ret, but continues to read_mac instead. |
||
974 | |||
975 | ;;;;;;;;;;;;;;;;;;;;;; |
||
976 | ;; ;; |
||
977 | ;; Read MAC address ;; |
||
978 | ;; ;; |
||
979 | ;;;;;;;;;;;;;;;;;;;;;; |
||
980 | |||
981 | read_mac: |
||
982 | |||
983 | DEBUGF 1,"Reading MAC\n" |
||
984 | |||
985 | xor esi, esi |
||
986 | mov cx, 16 |
||
987 | sub esp, 16 |
||
988 | mov edi, esp |
||
989 | call PIO_read |
||
990 | |||
991 | mov esi, esp |
||
992 | add esp, 16 |
||
993 | lea edi, [device.mac] |
||
994 | mov ecx, 6 |
||
995 | .loop: |
||
996 | movsb |
||
997 | test [device.flags], FLAG_16BIT |
||
998 | jz .8bit |
||
999 | inc esi |
||
1000 | .8bit: |
||
1001 | loop .loop |
||
1002 | |||
1003 | DEBUGF 1,"MAC=%x-%x-%x-%x-%x-%x\n",\ |
||
1004 | [device.mac]:2,[device.mac+1]:2,[device.mac+2]:2,[device.mac+3]:2,[device.mac+4]:2,[device.mac+5]:2 |
||
1005 | |||
1006 | ret |
||
1007 | |||
1008 | |||
1009 | ;*************************************************************************** |
||
1010 | ; |
||
1011 | ; PIO_read |
||
1012 | ; |
||
1013 | ; Description |
||
1014 | ; Read a frame from the ethernet card via Programmed I/O |
||
1015 | ; src in si |
||
1016 | ; cnt in cx |
||
1017 | ; dst in edi |
||
1018 | ;*************************************************************************** |
||
1019 | PIO_read: |
||
1020 | |||
1021 | DEBUGF 1,"PIO Read from %x to %x, %u bytes ", si, edi, cx |
||
1022 | |||
1023 | ; start DMA |
||
1024 | set_io 0 |
||
1025 | ; set_io P0_COMMAND |
||
1026 | mov al, CMD_RD2 + CMD_STA |
||
1027 | out dx, al |
||
1028 | |||
1029 | ; set length of data we're interested in |
||
1030 | set_io P0_RBCR0 |
||
1031 | mov al, cl |
||
1032 | out dx, al |
||
1033 | |||
1034 | set_io P0_RBCR1 |
||
1035 | mov al, ch |
||
1036 | out dx, al |
||
1037 | |||
1038 | ; set offset of what we want to read |
||
1039 | set_io P0_RSAR0 |
||
1040 | mov ax, si |
||
1041 | out dx, al |
||
1042 | |||
1043 | set_io P0_RSAR1 |
||
1044 | shr ax, 8 |
||
1045 | out dx, al |
||
1046 | |||
1047 | ; start DMA read |
||
1048 | set_io P0_COMMAND |
||
1049 | mov al, CMD_RD0 + CMD_STA |
||
1050 | out dx, al |
||
1051 | |||
1052 | set_io NE_ASIC |
||
1053 | |||
1054 | test [device.flags], FLAG_16BIT |
||
1055 | jz .8bits |
||
1056 | |||
1057 | DEBUGF 1,"(16-bit mode)\n" |
||
1058 | |||
1059 | shr cx, 1 ; note that if the number was odd, carry flag will be set |
||
1060 | pushf |
||
1061 | |||
1062 | .16bits: |
||
1063 | in ax, dx |
||
1064 | stosw |
||
1065 | loopw .16bits |
||
1066 | |||
1067 | inc cx |
||
1068 | popf |
||
1069 | jnc .done |
||
1070 | jmp .8bits_ |
||
1071 | |||
1072 | .8bits: |
||
1073 | DEBUGF 1,"(8-bit mode)\n" |
||
1074 | |||
1075 | .8bits_: |
||
1076 | in al, dx |
||
1077 | stosb |
||
1078 | loopw .8bits_ |
||
1079 | |||
1080 | |||
1081 | .done: |
||
1082 | ; set_io 0 |
||
1083 | ; set_io P0_ISR |
||
1084 | ; |
||
1085 | ; .dmawait: ; Wait for Remote DMA Complete |
||
1086 | ; in al, dx |
||
1087 | ; test al, ISR_RDC |
||
1088 | ; jz .dmawait |
||
1089 | ; and al, not ISR_RDC |
||
1090 | ; out dx, al ; clear the bit |
||
1091 | |||
1092 | ret |
||
1093 | |||
1094 | |||
1095 | |||
1096 | |||
1097 | ;*************************************************************************** |
||
1098 | ; |
||
1099 | ; PIO_write |
||
1100 | ; |
||
1101 | ; Description |
||
1102 | ; writes a frame to the ethernet card via Programmed I/O |
||
1103 | ; dst in di |
||
1104 | ; cnt in cx |
||
1105 | ; src in esi |
||
1106 | ;*************************************************************************** |
||
1107 | PIO_write: |
||
1108 | |||
1109 | DEBUGF 1,"Eth PIO Write from %x to %x, %u bytes ", esi, di, cx |
||
1110 | |||
1111 | set_io 0 |
||
1112 | ; set_io P0_COMMAND |
||
1113 | mov al, CMD_RD2 + CMD_STA |
||
1114 | out dx, al |
||
1115 | |||
1116 | set_io P0_ISR |
||
1117 | mov al, ISR_RDC |
||
1118 | out dx, al |
||
1119 | |||
1120 | set_io P0_RBCR0 |
||
1121 | mov al, cl |
||
1122 | out dx, al |
||
1123 | |||
1124 | set_io P0_RBCR1 |
||
1125 | mov al, ch |
||
1126 | out dx, al |
||
1127 | |||
1128 | mov ax, di |
||
1129 | set_io P0_RSAR0 |
||
1130 | out dx, al |
||
1131 | shr ax, 8 |
||
1132 | set_io P0_RSAR1 |
||
1133 | out dx, al |
||
1134 | |||
1135 | set_io P0_COMMAND |
||
1136 | mov al, CMD_RD1 + CMD_STA |
||
1137 | out dx, al |
||
1138 | |||
1139 | set_io NE_ASIC |
||
1140 | test [device.flags], FLAG_16BIT |
||
1141 | jz .8_bit |
||
1142 | |||
1143 | DEBUGF 1,"(16-bit mode)\n" |
||
1144 | |||
1145 | shr cx, 1 ; note that if the number was odd, carry flag will be set |
||
1146 | pushf ; save the flags for later |
||
1147 | |||
1148 | .16bit: |
||
1149 | lodsw |
||
1150 | out dx, ax |
||
1151 | loopw .16bit |
||
1152 | |||
1153 | popf |
||
1154 | jnc .done |
||
1155 | inc cx |
||
1156 | jmp .8_bit_ |
||
1157 | |||
1158 | .8_bit: |
||
1159 | |||
1160 | DEBUGF 1,"(8-bit mode)\n" |
||
1161 | |||
1162 | .8_bit_: |
||
1163 | lodsb |
||
1164 | out dx, al |
||
1165 | loopw .8_bit_ |
||
1166 | |||
1167 | .done: |
||
1168 | ; set_io 0 |
||
1169 | ; set_io P0_ISR |
||
1170 | ; .dmawait: ; Wait for Remote DMA Complete |
||
1171 | ; in al, dx |
||
1172 | ; test al, ISR_RDC |
||
1173 | ; jz .dmawait |
||
1174 | ; and al, not ISR_RDC |
||
1175 | ; out dx, al ; clear the bit |
||
1176 | |||
1177 | ret |
||
1178 | |||
1179 | |||
1180 | |||
1181 | ;all initialized data place here |
||
1182 | align 4 |
||
1183 | |||
1184 | devices dd 0 |
||
1185 | version dd (DRIVER_VERSION shl 16) or (API_VERSION and 0xFFFF) |
||
1186 | my_service db 'RTL8029/ne2000',0 ;max 16 chars include zero |
||
1187 | |||
1188 | ;device_1 db 'Realtek 8029',0 |
||
1189 | ;device_2 db 'Realtek 8019',0 |
||
1190 | ;device_3 db 'Realtek 8019AS',0 |
||
1191 | ;device_4 db 'ne2000',0 |
||
1192 | ;device_5 db 'DP8390',0 |
||
1193 | |||
1194 | include_debug_strings |
||
1195 | |||
1196 | section '.data' data readable writable align 16 ;place all uninitialized data place here |
||
1197 | |||
1198 | device_list rd MAX_DEVICES |
||
1199 |