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Rev | Author | Line No. | Line |
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425 | victor | 1 | $Revision: 425 $ |
261 | hidnplayr | 2 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
3 | ;; ;; |
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4 | ;; RTL8029.INC ;; |
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5 | ;; ;; |
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6 | ;; Ethernet driver for Menuet OS ;; |
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7 | ;; ;; |
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8 | ;; Version 0.2 31 July 2002 ;; |
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9 | ;; ;; |
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10 | ;; This driver is based on the ns8390 driver from ;; |
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11 | ;; the etherboot 5.0.6 project. The copyright statement is ;; |
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12 | ;; ;; |
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13 | ;; GNU GENERAL PUBLIC LICENSE ;; |
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14 | ;; Version 2, June 1991 ;; |
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15 | ;; ;; |
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16 | ;; remaining parts Copyright 2002 Mike Hibbett, ;; |
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17 | ;; mikeh@oceanfree.net ;; |
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18 | ;; ;; |
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19 | ;; See file COPYING for details ;; |
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20 | ;; ;; |
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21 | ;; While this implementation handles only PCI bus RTL8029 ;; |
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22 | ;; hardware, it can be easily adapted to other NE2000 clone ;; |
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23 | ;; products. I just dont have any to try! ;; |
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24 | ;; ;; |
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25 | ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; |
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26 | |||
27 | |||
28 | |||
29 | ;******************************************************************** |
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30 | ; Interface |
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31 | ; rtl8029_reset |
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32 | ; rtl8029_probe |
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33 | ; rtl8029_poll |
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34 | ; rtl8029_transmit |
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35 | ; |
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36 | ;******************************************************************** |
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37 | |||
38 | |||
39 | |||
40 | |||
41 | ;************************************************************************** |
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42 | ; 8390 Register Definitions |
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43 | ;************************************************************************** |
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44 | D8390_P0_COMMAND equ 0x00 |
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45 | D8390_P0_PSTART equ 0x01 |
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46 | D8390_P0_PSTOP equ 0x02 |
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47 | D8390_P0_BOUND equ 0x03 |
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48 | D8390_P0_TSR equ 0x04 |
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49 | D8390_P0_TPSR equ 0x04 |
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50 | D8390_P0_TBCR0 equ 0x05 |
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51 | D8390_P0_TBCR1 equ 0x06 |
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52 | D8390_P0_ISR equ 0x07 |
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53 | D8390_P0_RSAR0 equ 0x08 |
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54 | D8390_P0_RSAR1 equ 0x09 |
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55 | D8390_P0_RBCR0 equ 0x0A |
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56 | D8390_P0_RBCR1 equ 0x0B |
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57 | D8390_P0_RSR equ 0x0C |
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58 | D8390_P0_RCR equ 0x0C |
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59 | D8390_P0_TCR equ 0x0D |
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60 | D8390_P0_DCR equ 0x0E |
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61 | D8390_P0_IMR equ 0x0F |
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62 | D8390_P1_COMMAND equ 0x00 |
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63 | D8390_P1_PAR0 equ 0x01 |
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64 | D8390_P1_PAR1 equ 0x02 |
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65 | D8390_P1_PAR2 equ 0x03 |
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66 | D8390_P1_PAR3 equ 0x04 |
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67 | D8390_P1_PAR4 equ 0x05 |
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68 | D8390_P1_PAR5 equ 0x06 |
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69 | D8390_P1_CURR equ 0x07 |
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70 | D8390_P1_MAR0 equ 0x08 |
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71 | |||
72 | D8390_COMMAND_PS0 equ 0x0 ; Page 0 select |
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73 | D8390_COMMAND_PS1 equ 0x40 ; Page 1 select |
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74 | D8390_COMMAND_PS2 equ 0x80 ; Page 2 select |
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75 | D8390_COMMAND_RD2 equ 0x20 ; Remote DMA control |
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76 | D8390_COMMAND_RD1 equ 0x10 |
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77 | D8390_COMMAND_RD0 equ 0x08 |
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78 | D8390_COMMAND_TXP equ 0x04 ; transmit packet |
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79 | D8390_COMMAND_STA equ 0x02 ; start |
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80 | D8390_COMMAND_STP equ 0x01 ; stop |
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81 | |||
82 | D8390_COMMAND_RD2_STA equ 0x22 |
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83 | D8390_COMMAND_RD2_STP equ 0x21 |
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84 | D8390_COMMAND_RD1_STA equ 0x12 |
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85 | D8390_COMMAND_RD0_STA equ 0x0A |
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86 | D8390_COMMAND_PS0_RD2_STP equ 0x21 |
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87 | D8390_COMMAND_PS1_RD2_STP equ 0x61 |
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88 | D8390_COMMAND_PS0_RD2_STA equ 0x22 |
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89 | D8390_COMMAND_PS0_TXP_RD2_STA equ 0x26 |
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90 | |||
91 | D8390_RCR_MON equ 0x20 ; monitor mode |
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92 | |||
93 | D8390_DCR_FT1 equ 0x40 |
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94 | D8390_DCR_LS equ 0x08 ; Loopback select |
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95 | D8390_DCR_WTS equ 0x01 ; Word transfer select |
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96 | |||
97 | D8390_DCR_FT1_LS equ 0x48 |
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98 | D8390_DCR_WTS_FT1_LS equ 0x49 |
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99 | |||
100 | D8390_ISR_PRX equ 0x01 ; successful recv |
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101 | D8390_ISR_PTX equ 0x02 ; successful xmit |
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102 | D8390_ISR_RXE equ 0x04 ; receive error |
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103 | D8390_ISR_TXE equ 0x08 ; transmit error |
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104 | D8390_ISR_OVW equ 0x10 ; Overflow |
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105 | D8390_ISR_CNT equ 0x20 ; Counter overflow |
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106 | D8390_ISR_RDC equ 0x40 ; Remote DMA complete |
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107 | D8390_ISR_RST equ 0x80 ; reset |
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108 | |||
109 | D8390_RSTAT_PRX equ 0x01 ; successful recv |
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110 | D8390_RSTAT_CRC equ 0x02 ; CRC error |
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111 | D8390_RSTAT_FAE equ 0x04 ; Frame alignment error |
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112 | D8390_RSTAT_OVER equ 0x08 ; FIFO overrun |
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113 | |||
114 | D8390_TXBUF_SIZE equ 6 |
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115 | D8390_RXBUF_END equ 32 |
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116 | D8390_PAGE_SIZE equ 256 |
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117 | |||
118 | ETH_ALEN equ 6 |
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119 | ETH_HLEN equ 14 |
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120 | ETH_ZLEN equ 60 |
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121 | ETH_FRAME_LEN equ 1514 |
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122 | |||
123 | FLAG_PIO equ 0x01 |
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124 | FLAG_16BIT equ 0x02 |
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125 | ASIC_PIO equ 0 |
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126 | |||
127 | VENDOR_NONE equ 0 |
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128 | VENDOR_WD equ 1 |
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129 | VENDOR_NOVELL equ 2 |
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130 | VENDOR_3COM equ 3 |
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131 | |||
132 | NE_ASIC_OFFSET equ 0x10 |
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133 | NE_RESET equ 0x0F ; Used to reset card |
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134 | NE_DATA equ 0x00 ; Used to read/write NIC mem |
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135 | |||
136 | MEM_8192 equ 32 |
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137 | MEM_16384 equ 64 |
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138 | MEM_32768 equ 128 |
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139 | |||
140 | ISA_MAX_ADDR equ 0x400 |
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141 | |||
142 | uglobal |
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143 | eth_flags: db 0 |
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144 | eth_vendor: db 0 |
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145 | eth_nic_base: dw 0 |
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146 | eth_asic_base: dw 0 |
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147 | eth_memsize: db 0 |
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148 | eth_rx_start: db 0 |
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149 | eth_tx_start: db 0 |
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150 | eth_bmem: dd 0 |
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151 | eth_rmem: dd 0 |
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152 | romdata: db 0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0 |
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153 | endg |
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154 | |||
155 | iglobal |
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156 | test_data: db 'NE*000 memory',0 |
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157 | test_buffer: db ' ',0 |
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158 | endg |
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159 | |||
160 | uglobal |
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161 | eth_type: dw 0 |
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162 | pkthdr: db 0,0,0,0 ; status, next, (short) len |
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163 | pktoff: dw 0 |
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164 | eth_rx_data_ptr: dd 0 |
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165 | eth_tmp_len: dw 0 |
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166 | endg |
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167 | |||
168 | |||
169 | |||
170 | ;*************************************************************************** |
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171 | ; Function |
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172 | ; eth_pio_read |
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173 | ; |
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174 | ; Description |
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175 | ; Read a frame from the ethernet card via Programmed I/O |
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176 | ; src in ebx |
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177 | ; cnt in ecx |
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178 | ; dst in edi |
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179 | ;*************************************************************************** |
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180 | eth_pio_read: |
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181 | mov al, [eth_flags] |
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182 | and al, FLAG_16BIT |
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183 | cmp al, 0 |
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184 | je epr_001 |
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185 | |||
186 | inc ecx |
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187 | and ecx, 0xFFFFFFFE |
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188 | |||
189 | epr_001: |
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190 | mov al, D8390_COMMAND_RD2_STA |
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191 | mov dx, [eth_nic_base] |
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192 | add dx, D8390_P0_COMMAND |
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193 | out dx, al |
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194 | |||
195 | mov al, cl |
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196 | mov dx, [eth_nic_base] |
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197 | add dx, D8390_P0_RBCR0 |
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198 | out dx, al |
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199 | |||
200 | mov al, ch |
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201 | mov dx, [eth_nic_base] |
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202 | add dx, D8390_P0_RBCR1 |
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203 | out dx, al |
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204 | |||
205 | mov al, bl |
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206 | mov dx, [eth_nic_base] |
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207 | add dx, D8390_P0_RSAR0 |
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208 | out dx, al |
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209 | |||
210 | mov al, bh |
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211 | mov dx, [eth_nic_base] |
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212 | add dx, D8390_P0_RSAR1 |
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213 | out dx, al |
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214 | |||
215 | mov al, D8390_COMMAND_RD0_STA |
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216 | mov dx, [eth_nic_base] |
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217 | add dx, D8390_P0_COMMAND |
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218 | out dx, al |
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219 | |||
220 | mov dx, [eth_asic_base] |
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221 | add dx, ASIC_PIO |
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222 | |||
223 | mov al, [eth_flags] |
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224 | and al, FLAG_16BIT |
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225 | cmp al, 0 |
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226 | je epr_003 |
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227 | |||
228 | shr ecx, 1 |
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229 | |||
230 | epr_002: |
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231 | ; 2 bytes at a time |
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232 | in ax, dx |
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233 | mov [edi], ax |
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234 | add edi, 2 |
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235 | loop epr_002 |
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236 | ret |
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237 | |||
238 | epr_003: |
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239 | ; 1 byte at a time |
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240 | in al, dx |
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241 | mov [edi], al |
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242 | inc edi |
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243 | loop epr_003 |
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244 | ret |
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245 | |||
246 | |||
247 | |||
248 | |||
249 | ;*************************************************************************** |
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250 | ; Function |
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251 | ; eth_pio_write |
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252 | ; |
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253 | ; Description |
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254 | ; writes a frame to the ethernet card via Programmed I/O |
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255 | ; dst in ebx |
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256 | ; cnt in ecx |
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257 | ; src in esi |
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258 | ;*************************************************************************** |
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259 | eth_pio_write: |
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260 | mov al, [eth_flags] |
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261 | and al, FLAG_16BIT |
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262 | cmp al, 0 |
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263 | je epw_001 |
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264 | |||
265 | inc ecx |
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266 | and ecx, 0xFFFFFFFE |
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267 | |||
268 | epw_001: |
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269 | mov al, D8390_COMMAND_RD2_STA |
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270 | mov dx, [eth_nic_base] |
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271 | add dx, D8390_P0_COMMAND |
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272 | out dx, al |
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273 | |||
274 | mov al, D8390_ISR_RDC |
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275 | mov dx, [eth_nic_base] |
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276 | add dx, D8390_P0_ISR |
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277 | out dx, al |
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278 | |||
279 | |||
280 | mov al, cl |
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281 | mov dx, [eth_nic_base] |
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282 | add dx, D8390_P0_RBCR0 |
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283 | out dx, al |
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284 | |||
285 | mov al, ch |
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286 | mov dx, [eth_nic_base] |
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287 | add dx, D8390_P0_RBCR1 |
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288 | out dx, al |
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289 | |||
290 | mov al, bl |
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291 | mov dx, [eth_nic_base] |
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292 | add dx, D8390_P0_RSAR0 |
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293 | out dx, al |
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294 | |||
295 | mov al, bh |
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296 | mov dx, [eth_nic_base] |
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297 | add dx, D8390_P0_RSAR1 |
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298 | out dx, al |
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299 | |||
300 | mov al, D8390_COMMAND_RD1_STA |
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301 | mov dx, [eth_nic_base] |
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302 | add dx, D8390_P0_COMMAND |
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303 | out dx, al |
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304 | |||
305 | mov dx, [eth_asic_base] |
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306 | add dx, ASIC_PIO |
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307 | |||
308 | mov al, [eth_flags] |
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309 | and al, FLAG_16BIT |
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310 | cmp al, 0 |
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311 | je epw_003 |
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312 | |||
313 | shr ecx, 1 |
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314 | |||
315 | epw_002: |
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316 | ; 2 bytes at a time |
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317 | mov ax, [esi] |
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318 | add esi, 2 |
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319 | out dx, ax |
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320 | |||
321 | loop epw_002 |
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322 | jmp epw_004 |
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323 | |||
324 | epw_003: |
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325 | ; 1 byte at a time |
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326 | mov al, [esi] |
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327 | inc esi |
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328 | out dx, al |
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329 | loop epw_003 |
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330 | |||
331 | epw_004: |
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332 | mov dx, [eth_nic_base] |
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333 | add dx, D8390_P0_ISR |
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334 | |||
335 | epw_005: |
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336 | in al, dx |
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337 | and al, D8390_ISR_RDC |
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338 | cmp al, D8390_ISR_RDC |
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339 | jne epw_005 |
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340 | |||
341 | ret |
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342 | |||
343 | |||
344 | |||
345 | ;*************************************************************************** |
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346 | ; Function |
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347 | ; rtl8029_reset |
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348 | ; Description |
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349 | ; Place the chip (ie, the ethernet card) into a virgin state |
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350 | ; No inputs |
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351 | ; All registers destroyed |
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352 | ; |
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353 | ;*************************************************************************** |
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354 | rtl8029_reset: |
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355 | mov bx, [eth_nic_base] |
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356 | |||
357 | mov dx, bx |
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358 | add dx, D8390_P0_COMMAND |
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359 | mov al, D8390_COMMAND_PS0_RD2_STP |
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360 | out dx, al |
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361 | |||
362 | mov dx, bx |
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363 | add dx, D8390_P0_DCR |
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364 | mov al, [eth_flags] |
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365 | and al, FLAG_16BIT |
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366 | cmp al, FLAG_16BIT |
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367 | jne nsr_001 |
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368 | |||
369 | mov al, 0x49 |
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370 | jmp nsr_002 |
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371 | |||
372 | nsr_001: |
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373 | mov al, 0x48 |
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374 | |||
375 | nsr_002: |
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376 | out dx, al |
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377 | |||
378 | xor al, al |
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379 | |||
380 | mov dx, bx |
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381 | add dx, D8390_P0_RBCR0 |
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382 | out dx, al |
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383 | |||
384 | mov dx, bx |
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385 | add dx, D8390_P0_RBCR1 |
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386 | out dx, al |
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387 | |||
388 | mov dx, bx |
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389 | add dx, D8390_P0_RCR |
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390 | mov al, 0x20 |
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391 | out dx, al |
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392 | |||
393 | mov dx, bx |
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394 | add dx, D8390_P0_TCR |
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395 | mov al, 2 |
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396 | out dx, al |
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397 | |||
398 | mov dx, bx |
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399 | add dx, D8390_P0_TPSR |
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400 | mov al, [eth_tx_start] |
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401 | out dx, al |
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402 | |||
403 | mov dx, bx |
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404 | add dx, D8390_P0_PSTART |
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405 | mov al, [eth_rx_start] |
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406 | out dx, al |
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407 | |||
408 | mov dx, bx |
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409 | add dx, D8390_P0_PSTOP |
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410 | mov al, [eth_memsize] |
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411 | out dx, al |
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412 | |||
413 | mov dx, bx |
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414 | add dx, D8390_P0_BOUND |
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415 | mov al, [eth_memsize] |
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416 | dec al |
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417 | out dx, al |
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418 | |||
419 | mov dx, bx |
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420 | add dx, D8390_P0_ISR |
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421 | mov al, 0xff |
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422 | out dx, al |
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423 | |||
424 | mov dx, bx |
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425 | add dx, D8390_P0_IMR |
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426 | xor al, al |
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427 | out dx, al |
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428 | |||
429 | mov dx, bx |
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430 | add dx, D8390_P0_COMMAND |
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431 | mov al, D8390_COMMAND_PS1_RD2_STP |
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432 | out dx, al |
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433 | |||
434 | mov dx, bx |
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435 | add dx, D8390_P1_PAR0 |
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436 | mov esi, node_addr |
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437 | mov ecx, ETH_ALEN |
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438 | |||
439 | nsr_003: |
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440 | mov al, [esi] |
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441 | out dx, al |
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442 | |||
443 | inc esi |
||
444 | inc dx |
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445 | loop nsr_003 |
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446 | |||
447 | mov dx, bx |
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448 | add dx, D8390_P1_MAR0 |
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449 | mov ecx, ETH_ALEN |
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450 | |||
451 | mov al, 0xff |
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452 | |||
453 | nsr_004: |
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454 | out dx, al |
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455 | inc dx |
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456 | loop nsr_004 |
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457 | |||
458 | mov dx, bx |
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459 | add dx, D8390_P1_CURR |
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460 | mov al, [eth_rx_start] |
||
461 | out dx, al |
||
462 | |||
463 | mov dx, bx |
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464 | add dx, D8390_P0_COMMAND |
||
465 | mov al, D8390_COMMAND_PS0_RD2_STA |
||
466 | out dx, al |
||
467 | |||
468 | mov dx, bx |
||
469 | add dx, D8390_P0_ISR |
||
470 | mov al, 0xff |
||
471 | out dx, al |
||
472 | |||
473 | mov dx, bx |
||
474 | add dx, D8390_P0_TCR |
||
475 | mov al, 0 |
||
476 | out dx, al |
||
477 | |||
478 | mov dx, bx |
||
479 | add dx, D8390_P0_RCR |
||
480 | mov al, 4 |
||
481 | out dx, al |
||
482 | |||
483 | ret |
||
484 | |||
485 | |||
486 | |||
487 | ;*************************************************************************** |
||
488 | ; Function |
||
489 | ; rtl8029_probe |
||
490 | ; Description |
||
491 | ; Searches for an ethernet card, enables it and clears the rx buffer |
||
492 | ; If a card was found, it enables the ethernet -> TCPIP link |
||
493 | ; |
||
494 | ;*************************************************************************** |
||
495 | rtl8029_probe: |
||
496 | mov eax, [io_addr] |
||
497 | mov [eth_nic_base], ax ; The IO address space is 16 bit only |
||
498 | |||
499 | mov al, VENDOR_NONE |
||
500 | mov [eth_vendor], al |
||
501 | |||
502 | mov al, [eth_vendor] |
||
503 | cmp al, VENDOR_NONE |
||
504 | |||
505 | jne ep_check_have_vendor |
||
506 | xor eax, eax |
||
507 | mov [eth_bmem], eax |
||
508 | |||
509 | mov al, FLAG_PIO |
||
510 | mov [eth_flags], al |
||
511 | |||
512 | mov ax, [eth_nic_base] |
||
513 | add ax, NE_ASIC_OFFSET |
||
514 | mov [eth_asic_base], ax |
||
515 | |||
516 | mov al, MEM_16384 |
||
517 | mov [eth_memsize], al |
||
518 | |||
519 | mov al, 32 |
||
520 | mov [eth_tx_start], al |
||
521 | |||
522 | add al, D8390_TXBUF_SIZE |
||
523 | mov [eth_rx_start], al |
||
524 | |||
525 | mov dx, [eth_asic_base] |
||
526 | add dx, NE_RESET |
||
527 | |||
528 | in al, dx |
||
529 | out dx, al |
||
530 | |||
531 | in al, 0x84 |
||
532 | |||
533 | mov bx, [eth_nic_base] |
||
534 | |||
535 | mov dx, bx |
||
536 | add dx, D8390_P0_COMMAND |
||
537 | mov al, D8390_COMMAND_RD2_STP |
||
538 | out dx, al |
||
539 | |||
540 | mov dx, bx |
||
541 | add dx, D8390_P0_RCR |
||
542 | mov al, D8390_RCR_MON |
||
543 | out dx, al |
||
544 | |||
545 | mov dx, bx |
||
546 | add dx, D8390_P0_DCR |
||
547 | mov al, D8390_DCR_FT1_LS |
||
548 | out dx, al |
||
549 | |||
550 | mov dx, bx |
||
551 | add dx, D8390_P0_PSTART |
||
552 | mov al, MEM_8192 |
||
553 | out dx, al |
||
554 | |||
555 | mov dx, bx |
||
556 | add dx, D8390_P0_PSTOP |
||
557 | mov al, MEM_16384 |
||
558 | out dx, al |
||
559 | |||
560 | mov esi, test_data |
||
561 | mov ebx, 8192 |
||
562 | mov ecx, 14 |
||
563 | call eth_pio_write |
||
564 | |||
565 | mov ebx, 8192 |
||
566 | mov ecx, 14 |
||
567 | mov edi, test_buffer |
||
568 | call eth_pio_read |
||
569 | |||
570 | mov esi, test_buffer |
||
571 | mov edi, test_data |
||
572 | mov ecx, 13 |
||
573 | cld |
||
574 | rep cmpsb |
||
575 | |||
576 | je ep_set_vendor |
||
577 | |||
578 | mov al, [eth_flags] |
||
579 | or al, FLAG_16BIT |
||
580 | mov [eth_flags], al |
||
581 | |||
582 | mov al, MEM_32768 |
||
583 | mov [eth_memsize], al |
||
584 | |||
585 | mov al, 64 |
||
586 | mov [eth_tx_start], al |
||
587 | |||
588 | add al, D8390_TXBUF_SIZE |
||
589 | mov [eth_rx_start], al |
||
590 | |||
591 | mov bx, [eth_nic_base] |
||
592 | |||
593 | mov dx, bx |
||
594 | add dx, D8390_P0_DCR |
||
595 | mov al, D8390_DCR_WTS_FT1_LS |
||
596 | out dx, al |
||
597 | |||
598 | mov dx, bx |
||
599 | add dx, D8390_P0_PSTART |
||
600 | mov al, MEM_16384 |
||
601 | out dx, al |
||
602 | |||
603 | mov dx, bx |
||
604 | add dx, D8390_P0_PSTOP |
||
605 | mov al, MEM_32768 |
||
606 | out dx, al |
||
607 | |||
608 | mov esi, test_data |
||
609 | mov ebx, 16384 |
||
610 | mov ecx, 14 |
||
611 | call eth_pio_write |
||
612 | |||
613 | mov ebx, 16384 |
||
614 | mov ecx, 14 |
||
615 | mov edi, test_buffer |
||
616 | call eth_pio_read |
||
617 | |||
618 | mov esi, test_buffer |
||
619 | mov edi, test_data |
||
620 | mov ecx, 13 |
||
621 | cld |
||
622 | rep cmpsb |
||
623 | |||
624 | ep_set_vendor: |
||
625 | ; this bit is odd - probably left over from my hacking |
||
626 | mov ax, [eth_nic_base] |
||
627 | cmp ax, 0 |
||
628 | je rtl8029_exit |
||
629 | cmp ax, ISA_MAX_ADDR |
||
630 | jbe ep_001 |
||
631 | mov al, [eth_flags] |
||
632 | or al, FLAG_16BIT |
||
633 | mov [eth_flags], al |
||
634 | |||
635 | ep_001: |
||
636 | mov al, VENDOR_NOVELL |
||
637 | mov [eth_vendor], al |
||
638 | |||
639 | mov ebx, 0 |
||
640 | mov ecx, 16 |
||
641 | mov edi, romdata |
||
642 | call eth_pio_read |
||
643 | |||
644 | |||
645 | mov ecx, ETH_ALEN |
||
646 | mov esi, romdata |
||
647 | mov edi, node_addr |
||
648 | |||
649 | mov bl, [eth_flags] |
||
650 | and bl, FLAG_16BIT |
||
651 | |||
652 | ep_002: |
||
653 | mov al, [esi] |
||
654 | mov [edi], al |
||
655 | |||
656 | inc edi |
||
657 | inc esi |
||
658 | cmp bl, FLAG_16BIT |
||
659 | jne ep_003 |
||
660 | |||
661 | inc esi |
||
662 | |||
663 | ep_003: |
||
664 | loop ep_002 |
||
665 | |||
666 | ep_check_have_vendor: |
||
667 | mov al, [eth_vendor] |
||
668 | cmp al, VENDOR_NONE |
||
669 | je rtl8029_exit |
||
670 | |||
671 | cmp al, VENDOR_3COM |
||
672 | je ep_reset_card |
||
673 | |||
674 | mov eax, [eth_bmem] |
||
675 | mov [eth_rmem], eax |
||
676 | |||
677 | ep_reset_card: |
||
678 | ; Reset the card |
||
679 | call rtl8029_reset |
||
680 | |||
681 | ; Indicate that we have successfully reset the card |
||
682 | mov eax, [pci_data] |
||
683 | mov [eth_status], eax |
||
684 | |||
685 | rtl8029_exit: |
||
686 | ret |
||
687 | |||
688 | |||
689 | |||
690 | ;*************************************************************************** |
||
691 | ; Function |
||
692 | ; rtl8029_poll |
||
693 | ; |
||
694 | ; Description |
||
695 | ; Polls the ethernet card for a received packet |
||
696 | ; Received data, if any, ends up in Ether_buffer |
||
697 | ; |
||
698 | ;*************************************************************************** |
||
699 | rtl8029_poll: |
||
700 | mov eax, Ether_buffer |
||
701 | mov [eth_rx_data_ptr], eax |
||
702 | |||
703 | mov bx, [eth_nic_base] |
||
704 | |||
705 | mov dx, bx |
||
706 | add dx, D8390_P0_RSR |
||
707 | in al, dx |
||
708 | |||
709 | and al, D8390_RSTAT_PRX |
||
710 | cmp al, D8390_RSTAT_PRX |
||
711 | jne nsp_exit |
||
712 | |||
713 | mov dx, bx |
||
714 | add dx, D8390_P0_BOUND |
||
715 | in al, dx |
||
716 | inc al |
||
717 | |||
718 | cmp al, [eth_memsize] |
||
719 | jb nsp_001 |
||
720 | |||
721 | mov al, [eth_rx_start] |
||
722 | |||
723 | nsp_001: |
||
724 | mov ch, al |
||
725 | |||
726 | mov dx, bx |
||
727 | add dx, D8390_P0_COMMAND |
||
728 | mov al, D8390_COMMAND_PS1 |
||
729 | out dx, al |
||
730 | |||
731 | mov dx, bx |
||
732 | add dx, D8390_P1_CURR |
||
733 | in al, dx ; get current page |
||
734 | mov cl, al |
||
735 | |||
736 | mov dx, bx |
||
737 | add dx, D8390_P0_COMMAND |
||
738 | mov al, D8390_COMMAND_PS0 |
||
739 | out dx, al |
||
740 | |||
741 | cmp cl, [eth_memsize] |
||
742 | jb nsp_002 |
||
743 | |||
744 | mov cl, [eth_rx_start] |
||
745 | |||
746 | nsp_002: |
||
747 | cmp cl, ch |
||
748 | je nsp_exit |
||
749 | |||
750 | xor ax, ax |
||
751 | mov ah, ch |
||
752 | |||
753 | mov [pktoff], ax |
||
754 | |||
755 | mov al, [eth_flags] |
||
756 | and al, FLAG_PIO |
||
757 | cmp al, FLAG_PIO |
||
758 | jne nsp_003 |
||
759 | |||
760 | movzx ebx, word [pktoff] |
||
761 | mov edi, pkthdr |
||
762 | mov ecx, 4 |
||
763 | call eth_pio_read |
||
764 | jmp nsp_004 |
||
765 | |||
766 | nsp_003: |
||
767 | mov edi, [eth_rmem] |
||
768 | movzx eax, word [pktoff] |
||
769 | add edi, eax |
||
770 | mov eax, [edi] |
||
771 | mov [pkthdr], eax |
||
772 | |||
773 | nsp_004: |
||
774 | mov ax, [pktoff] |
||
775 | add ax, 4 |
||
776 | mov [pktoff], ax |
||
777 | |||
778 | mov ax, [pkthdr + 2] |
||
779 | sub ax, 4 |
||
780 | |||
781 | mov [eth_tmp_len], ax |
||
782 | |||
783 | cmp ax, ETH_ZLEN |
||
784 | jb nsp_exit |
||
785 | |||
786 | cmp ax, ETH_FRAME_LEN |
||
787 | ja nsp_exit |
||
788 | |||
789 | mov al, [pkthdr] |
||
790 | and al, D8390_RSTAT_PRX |
||
791 | cmp al, D8390_RSTAT_PRX |
||
792 | jne nsp_exit |
||
793 | |||
794 | ; Right, we can now get the data |
||
795 | |||
796 | mov ax, [eth_tmp_len] |
||
797 | mov [eth_rx_data_len], ax |
||
798 | |||
799 | xor ebx, ebx |
||
800 | mov bh, [eth_memsize] |
||
801 | sub bx, [pktoff] |
||
802 | |||
803 | cmp [eth_tmp_len], bx |
||
804 | jbe nsp_005 |
||
805 | |||
806 | mov al, [eth_flags] |
||
807 | and al, FLAG_PIO |
||
808 | cmp al, FLAG_PIO |
||
809 | jne nsp_006 |
||
810 | |||
811 | push ebx |
||
812 | mov ecx, ebx |
||
813 | xor ebx, ebx |
||
814 | mov bx, [pktoff] |
||
815 | mov edi, [eth_rx_data_ptr] |
||
816 | call eth_pio_read |
||
817 | pop ebx |
||
818 | jmp nsp_007 |
||
819 | |||
820 | nsp_006: |
||
821 | ; Not implemented, as we are using PIO mode on this card |
||
822 | |||
823 | nsp_007: |
||
824 | xor ax, ax |
||
825 | mov ah, [eth_rx_start] |
||
826 | mov [pktoff], ax |
||
827 | |||
828 | mov eax, [eth_rx_data_ptr] |
||
829 | add eax, ebx |
||
830 | mov [eth_rx_data_ptr], eax |
||
831 | |||
832 | mov ax, [eth_tmp_len] |
||
833 | sub ax, bx |
||
834 | mov [eth_tmp_len], ax |
||
835 | |||
836 | nsp_005: |
||
837 | mov al, [eth_flags] |
||
838 | and al, FLAG_PIO |
||
839 | cmp al, FLAG_PIO |
||
840 | jne nsp_008 |
||
841 | |||
842 | xor ebx, ebx |
||
843 | mov bx, [pktoff] |
||
844 | xor ecx, ecx |
||
845 | mov cx, [eth_tmp_len] |
||
846 | mov edi, [eth_rx_data_ptr] |
||
847 | call eth_pio_read |
||
848 | jmp nsp_009 |
||
849 | |||
850 | nsp_008: |
||
851 | ; Not implemented, as we are using PIO mode on this card |
||
852 | |||
853 | nsp_009: |
||
854 | mov al, [pkthdr+1] |
||
855 | cmp al, [eth_rx_start] |
||
856 | jne nsp_010 |
||
857 | |||
858 | mov al, [eth_memsize] |
||
859 | |||
860 | nsp_010: |
||
861 | mov dx, [eth_nic_base] |
||
862 | add dx, D8390_P0_BOUND |
||
863 | dec al |
||
864 | out dx, al |
||
865 | |||
866 | nsp_exit: |
||
867 | ret |
||
868 | |||
869 | |||
870 | |||
871 | ;*************************************************************************** |
||
872 | ; Function |
||
873 | ; rtl8029_transmit |
||
874 | ; |
||
875 | ; Description |
||
876 | ; Transmits a packet of data via the ethernet card |
||
877 | ; Pointer to 48 bit destination address in edi |
||
878 | ; Type of packet in bx |
||
879 | ; size of packet in ecx |
||
880 | ; pointer to packet data in esi |
||
881 | ; |
||
882 | ;*************************************************************************** |
||
883 | rtl8029_transmit: |
||
884 | mov [eth_type], bx |
||
885 | |||
886 | pusha |
||
887 | |||
888 | mov esi, edi |
||
889 | xor bx, bx |
||
890 | mov bh, [eth_tx_start] |
||
891 | mov ecx, ETH_ALEN |
||
892 | call eth_pio_write |
||
893 | |||
894 | mov esi, node_addr |
||
895 | xor bx, bx |
||
896 | mov bh, [eth_tx_start] |
||
897 | add bx, ETH_ALEN |
||
898 | mov ecx, ETH_ALEN |
||
899 | call eth_pio_write |
||
900 | |||
901 | mov esi, eth_type |
||
902 | xor bx, bx |
||
903 | mov bh, [eth_tx_start] |
||
904 | add bx, ETH_ALEN |
||
905 | add bx, ETH_ALEN |
||
906 | mov ecx, 2 |
||
907 | call eth_pio_write |
||
908 | |||
909 | popa |
||
910 | |||
911 | xor bx, bx |
||
912 | mov bh, [eth_tx_start] |
||
913 | add bx, ETH_HLEN |
||
914 | push ecx |
||
915 | call eth_pio_write |
||
916 | pop ecx |
||
917 | |||
918 | add ecx, ETH_HLEN |
||
919 | cmp ecx, ETH_ZLEN |
||
920 | jae nst_001 |
||
921 | |||
922 | mov ecx, ETH_ZLEN |
||
923 | |||
924 | nst_001: |
||
925 | push ecx |
||
926 | |||
927 | mov bx, [eth_nic_base] |
||
928 | |||
929 | mov dx, bx |
||
930 | add dx, D8390_P0_COMMAND |
||
931 | mov al, D8390_COMMAND_PS0_RD2_STA |
||
932 | out dx, al |
||
933 | |||
934 | mov dx, bx |
||
935 | add dx, D8390_P0_TPSR |
||
936 | mov al, [eth_tx_start] |
||
937 | out dx, al |
||
938 | |||
939 | pop ecx |
||
940 | |||
941 | mov dx, bx |
||
942 | add dx, D8390_P0_TBCR0 |
||
943 | mov al, cl |
||
944 | out dx, al |
||
945 | |||
946 | mov dx, bx |
||
947 | add dx, D8390_P0_TBCR1 |
||
948 | mov al, ch |
||
949 | out dx, al |
||
950 | |||
951 | mov dx, bx |
||
952 | add dx, D8390_P0_COMMAND |
||
953 | mov al, D8390_COMMAND_PS0_TXP_RD2_STA |
||
954 | out dx, al |
||
955 | |||
956 | ret |