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