1 | /*
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2 | * Copyright (c) 1993 Herb Peyerl (hpeyerl@novatel.ca) All rights reserved.
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3 | *
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4 | * Redistribution and use in source and binary forms, with or without
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5 | * modification, are permitted provided that the following conditions are
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6 | * met: 1. Redistributions of source code must retain the above copyright
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7 | * notice, this list of conditions and the following disclaimer. 2. The name
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8 | * of the author may not be used to endorse or promote products derived from
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9 | * this software withough specific prior written permission
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10 | *
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11 | * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR IMPLIED
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12 | * WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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13 | * MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO
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14 | * EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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15 | * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED
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16 | * TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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17 | * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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18 | * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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19 | * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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20 | * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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21 | *
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22 | * if_epreg.h,v 1.4 1994/11/13 10:12:37 gibbs Exp Modified by:
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23 | *
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24 | October 2, 1994
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25 |
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26 | Modified by: Andres Vega Garcia
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27 |
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28 | INRIA - Sophia Antipolis, France
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29 | e-mail: avega@sophia.inria.fr
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30 | finger: avega@pax.inria.fr
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31 |
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32 | */
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33 |
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34 | /*
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35 | * Ethernet software status per interface.
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36 | */
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37 | /*
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38 | * Some global constants
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39 | */
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40 |
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41 | #define TX_INIT_RATE 16
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42 | #define TX_INIT_MAX_RATE 64
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43 | #define RX_INIT_LATENCY 64
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44 | #define RX_INIT_EARLY_THRESH 64
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45 | #define MIN_RX_EARLY_THRESHF 16 /* not less than ether_header */
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46 | #define MIN_RX_EARLY_THRESHL 4
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47 |
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48 | #define EEPROMSIZE 0x40
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49 | #define MAX_EEPROMBUSY 1000
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50 | #define EP_LAST_TAG 0xd7
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51 | #define EP_MAX_BOARDS 16
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52 | #ifndef EP_ID_PORT
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53 | #define EP_ID_PORT 0x100
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54 | #endif
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55 |
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56 | /*
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57 | * some macros to acces long named fields
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58 | */
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59 | #define IS_BASE (eth_nic_base)
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60 | #define BASE (eth_nic_base)
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61 |
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62 | /*
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63 | * Commands to read/write EEPROM trough EEPROM command register (Window 0,
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64 | * Offset 0xa)
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65 | */
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66 | #define EEPROM_CMD_RD 0x0080 /* Read: Address required (5 bits) */
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67 | #define EEPROM_CMD_WR 0x0040 /* Write: Address required (5 bits) */
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68 | #define EEPROM_CMD_ERASE 0x00c0 /* Erase: Address required (5 bits) */
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69 | #define EEPROM_CMD_EWEN 0x0030 /* Erase/Write Enable: No data required */
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70 |
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71 | #define EEPROM_BUSY (1<<15)
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72 | #define EEPROM_TST_MODE (1<<14)
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73 |
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74 | /*
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75 | * Some short functions, worth to let them be a macro
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76 | */
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77 | #define is_eeprom_busy(b) (inw((b)+EP_W0_EEPROM_COMMAND)&EEPROM_BUSY)
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78 | #define GO_WINDOW(x) outw(WINDOW_SELECT|(x), BASE+EP_COMMAND)
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79 |
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80 | /**************************************************************************
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81 | *
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82 | * These define the EEPROM data structure. They are used in the probe
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83 | * function to verify the existance of the adapter after having sent
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84 | * the ID_Sequence.
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85 | *
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86 | * There are others but only the ones we use are defined here.
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87 | *
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88 | **************************************************************************/
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89 |
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90 | #define EEPROM_NODE_ADDR_0 0x0 /* Word */
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91 | #define EEPROM_NODE_ADDR_1 0x1 /* Word */
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92 | #define EEPROM_NODE_ADDR_2 0x2 /* Word */
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93 | #define EEPROM_PROD_ID 0x3 /* 0x9[0-f]50 */
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94 | #define EEPROM_MFG_ID 0x7 /* 0x6d50 */
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95 | #define EEPROM_ADDR_CFG 0x8 /* Base addr */
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96 | #define EEPROM_RESOURCE_CFG 0x9 /* IRQ. Bits 12-15 */
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97 |
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98 | /**************************************************************************
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99 | *
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100 | * These are the registers for the 3Com 3c509 and their bit patterns when
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101 | * applicable. They have been taken out the the "EtherLink III Parallel
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102 | * Tasking EISA and ISA Technical Reference" "Beta Draft 10/30/92" manual
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103 | * from 3com.
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104 | *
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105 | **************************************************************************/
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106 |
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107 | #define EP_COMMAND 0x0e /* Write. BASE+0x0e is always a
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108 | * command reg. */
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109 | #define EP_STATUS 0x0e /* Read. BASE+0x0e is always status
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110 | * reg. */
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111 | #define EP_WINDOW 0x0f /* Read. BASE+0x0f is always window
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112 | * reg. */
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113 | /*
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114 | * Window 0 registers. Setup.
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115 | */
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116 | /* Write */
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117 | #define EP_W0_EEPROM_DATA 0x0c
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118 | #define EP_W0_EEPROM_COMMAND 0x0a
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119 | #define EP_W0_RESOURCE_CFG 0x08
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120 | #define EP_W0_ADDRESS_CFG 0x06
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121 | #define EP_W0_CONFIG_CTRL 0x04
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122 | /* Read */
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123 | #define EP_W0_PRODUCT_ID 0x02
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124 | #define EP_W0_MFG_ID 0x00
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125 |
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126 | /*
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127 | * Window 1 registers. Operating Set.
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128 | */
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129 | /* Write */
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130 | #define EP_W1_TX_PIO_WR_2 0x02
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131 | #define EP_W1_TX_PIO_WR_1 0x00
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132 | /* Read */
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133 | #define EP_W1_FREE_TX 0x0c
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134 | #define EP_W1_TX_STATUS 0x0b /* byte */
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135 | #define EP_W1_TIMER 0x0a /* byte */
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136 | #define EP_W1_RX_STATUS 0x08
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137 | #define EP_W1_RX_PIO_RD_2 0x02
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138 | #define EP_W1_RX_PIO_RD_1 0x00
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139 |
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140 | /*
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141 | * Window 2 registers. Station Address Setup/Read
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142 | */
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143 | /* Read/Write */
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144 | #define EP_W2_ADDR_5 0x05
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145 | #define EP_W2_ADDR_4 0x04
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146 | #define EP_W2_ADDR_3 0x03
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147 | #define EP_W2_ADDR_2 0x02
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148 | #define EP_W2_ADDR_1 0x01
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149 | #define EP_W2_ADDR_0 0x00
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150 |
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151 | /*
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152 | * Window 3 registers. FIFO Management.
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153 | */
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154 | /* Read */
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155 | #define EP_W3_FREE_TX 0x0c
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156 | #define EP_W3_FREE_RX 0x0a
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157 |
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158 | /*
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159 | * Window 4 registers. Diagnostics.
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160 | */
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161 | /* Read/Write */
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162 | #define EP_W4_MEDIA_TYPE 0x0a
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163 | #define EP_W4_CTRLR_STATUS 0x08
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164 | #define EP_W4_NET_DIAG 0x06
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165 | #define EP_W4_FIFO_DIAG 0x04
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166 | #define EP_W4_HOST_DIAG 0x02
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167 | #define EP_W4_TX_DIAG 0x00
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168 |
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169 | /*
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170 | * Window 5 Registers. Results and Internal status.
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171 | */
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172 | /* Read */
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173 | #define EP_W5_READ_0_MASK 0x0c
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174 | #define EP_W5_INTR_MASK 0x0a
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175 | #define EP_W5_RX_FILTER 0x08
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176 | #define EP_W5_RX_EARLY_THRESH 0x06
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177 | #define EP_W5_TX_AVAIL_THRESH 0x02
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178 | #define EP_W5_TX_START_THRESH 0x00
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179 |
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180 | /*
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181 | * Window 6 registers. Statistics.
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182 | */
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183 | /* Read/Write */
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184 | #define TX_TOTAL_OK 0x0c
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185 | #define RX_TOTAL_OK 0x0a
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186 | #define TX_DEFERRALS 0x08
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187 | #define RX_FRAMES_OK 0x07
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188 | #define TX_FRAMES_OK 0x06
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189 | #define RX_OVERRUNS 0x05
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190 | #define TX_COLLISIONS 0x04
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191 | #define TX_AFTER_1_COLLISION 0x03
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192 | #define TX_AFTER_X_COLLISIONS 0x02
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193 | #define TX_NO_SQE 0x01
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194 | #define TX_CD_LOST 0x00
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195 |
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196 | /****************************************
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197 | *
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198 | * Register definitions.
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199 | *
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200 | ****************************************/
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201 |
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202 | /*
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203 | * Command register. All windows.
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204 | *
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205 | * 16 bit register.
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206 | * 15-11: 5-bit code for command to be executed.
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207 | * 10-0: 11-bit arg if any. For commands with no args;
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208 | * this can be set to anything.
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209 | */
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210 | #define GLOBAL_RESET (unsigned short) 0x0000 /* Wait at least 1ms
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211 | * after issuing */
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212 | #define WINDOW_SELECT (unsigned short) (0x1<<11)
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213 | #define START_TRANSCEIVER (unsigned short) (0x2<<11) /* Read ADDR_CFG reg to
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214 | * determine whether
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215 | * this is needed. If
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216 | * so; wait 800 uSec
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217 | * before using trans-
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218 | * ceiver. */
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219 | #define RX_DISABLE (unsigned short) (0x3<<11) /* state disabled on
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220 | * power-up */
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221 | #define RX_ENABLE (unsigned short) (0x4<<11)
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222 | #define RX_RESET (unsigned short) (0x5<<11)
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223 | #define RX_DISCARD_TOP_PACK (unsigned short) (0x8<<11)
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224 | #define TX_ENABLE (unsigned short) (0x9<<11)
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225 | #define TX_DISABLE (unsigned short) (0xa<<11)
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226 | #define TX_RESET (unsigned short) (0xb<<11)
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227 | #define REQ_INTR (unsigned short) (0xc<<11)
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228 | #define SET_INTR_MASK (unsigned short) (0xe<<11)
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229 | #define SET_RD_0_MASK (unsigned short) (0xf<<11)
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230 | #define SET_RX_FILTER (unsigned short) (0x10<<11)
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231 | #define FIL_INDIVIDUAL (unsigned short) (0x1)
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232 | #define FIL_GROUP (unsigned short) (0x2)
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233 | #define FIL_BRDCST (unsigned short) (0x4)
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234 | #define FIL_ALL (unsigned short) (0x8)
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235 | #define SET_RX_EARLY_THRESH (unsigned short) (0x11<<11)
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236 | #define SET_TX_AVAIL_THRESH (unsigned short) (0x12<<11)
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237 | #define SET_TX_START_THRESH (unsigned short) (0x13<<11)
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238 | #define STATS_ENABLE (unsigned short) (0x15<<11)
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239 | #define STATS_DISABLE (unsigned short) (0x16<<11)
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240 | #define STOP_TRANSCEIVER (unsigned short) (0x17<<11)
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241 | /*
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242 | * The following C_* acknowledge the various interrupts. Some of them don't
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243 | * do anything. See the manual.
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244 | */
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245 | #define ACK_INTR (unsigned short) (0x6800)
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246 | #define C_INTR_LATCH (unsigned short) (ACK_INTR|0x1)
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247 | #define C_CARD_FAILURE (unsigned short) (ACK_INTR|0x2)
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248 | #define C_TX_COMPLETE (unsigned short) (ACK_INTR|0x4)
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249 | #define C_TX_AVAIL (unsigned short) (ACK_INTR|0x8)
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250 | #define C_RX_COMPLETE (unsigned short) (ACK_INTR|0x10)
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251 | #define C_RX_EARLY (unsigned short) (ACK_INTR|0x20)
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252 | #define C_INT_RQD (unsigned short) (ACK_INTR|0x40)
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253 | #define C_UPD_STATS (unsigned short) (ACK_INTR|0x80)
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254 |
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255 | /*
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256 | * Status register. All windows.
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257 | *
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258 | * 15-13: Window number(0-7).
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259 | * 12: Command_in_progress.
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260 | * 11: reserved.
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261 | * 10: reserved.
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262 | * 9: reserved.
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263 | * 8: reserved.
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264 | * 7: Update Statistics.
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265 | * 6: Interrupt Requested.
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266 | * 5: RX Early.
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267 | * 4: RX Complete.
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268 | * 3: TX Available.
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269 | * 2: TX Complete.
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270 | * 1: Adapter Failure.
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271 | * 0: Interrupt Latch.
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272 | */
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273 | #define S_INTR_LATCH (unsigned short) (0x1)
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274 | #define S_CARD_FAILURE (unsigned short) (0x2)
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275 | #define S_TX_COMPLETE (unsigned short) (0x4)
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276 | #define S_TX_AVAIL (unsigned short) (0x8)
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277 | #define S_RX_COMPLETE (unsigned short) (0x10)
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278 | #define S_RX_EARLY (unsigned short) (0x20)
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279 | #define S_INT_RQD (unsigned short) (0x40)
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280 | #define S_UPD_STATS (unsigned short) (0x80)
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281 | #define S_5_INTS (S_CARD_FAILURE|S_TX_COMPLETE|\
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282 | S_TX_AVAIL|S_RX_COMPLETE|S_RX_EARLY)
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283 | #define S_COMMAND_IN_PROGRESS (unsigned short) (0x1000)
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284 |
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285 | /*
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286 | * FIFO Registers.
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287 | * RX Status. Window 1/Port 08
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288 | *
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289 | * 15: Incomplete or FIFO empty.
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290 | * 14: 1: Error in RX Packet 0: Incomplete or no error.
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291 | * 13-11: Type of error.
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292 | * 1000 = Overrun.
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293 | * 1011 = Run Packet Error.
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294 | * 1100 = Alignment Error.
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295 | * 1101 = CRC Error.
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296 | * 1001 = Oversize Packet Error (>1514 bytes)
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297 | * 0010 = Dribble Bits.
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298 | * (all other error codes, no errors.)
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299 | *
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300 | * 10-0: RX Bytes (0-1514)
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301 | */
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302 | #define ERR_RX_INCOMPLETE (unsigned short) (0x1<<15)
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303 | #define ERR_RX (unsigned short) (0x1<<14)
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304 | #define ERR_RX_OVERRUN (unsigned short) (0x8<<11)
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305 | #define ERR_RX_RUN_PKT (unsigned short) (0xb<<11)
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306 | #define ERR_RX_ALIGN (unsigned short) (0xc<<11)
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307 | #define ERR_RX_CRC (unsigned short) (0xd<<11)
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308 | #define ERR_RX_OVERSIZE (unsigned short) (0x9<<11)
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309 | #define ERR_RX_DRIBBLE (unsigned short) (0x2<<11)
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310 |
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311 | /*
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312 | * FIFO Registers.
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313 | * TX Status. Window 1/Port 0B
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314 | *
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315 | * Reports the transmit status of a completed transmission. Writing this
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316 | * register pops the transmit completion stack.
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317 | *
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318 | * Window 1/Port 0x0b.
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319 | *
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320 | * 7: Complete
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321 | * 6: Interrupt on successful transmission requested.
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322 | * 5: Jabber Error (TP Only, TX Reset required. )
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323 | * 4: Underrun (TX Reset required. )
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324 | * 3: Maximum Collisions.
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325 | * 2: TX Status Overflow.
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326 | * 1-0: Undefined.
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327 | *
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328 | */
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329 | #define TXS_COMPLETE 0x80
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330 | #define TXS_SUCCES_INTR_REQ 0x40
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331 | #define TXS_JABBER 0x20
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332 | #define TXS_UNDERRUN 0x10
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333 | #define TXS_MAX_COLLISION 0x8
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334 | #define TXS_STATUS_OVERFLOW 0x4
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335 |
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336 | /*
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337 | * Configuration control register.
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338 | * Window 0/Port 04
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339 | */
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340 | /* Read */
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341 | #define IS_AUI (1<<13)
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342 | #define IS_BNC (1<<12)
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343 | #define IS_UTP (1<<9)
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344 | /* Write */
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345 | #define ENABLE_DRQ_IRQ 0x0001
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346 | #define W0_P4_CMD_RESET_ADAPTER 0x4
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347 | #define W0_P4_CMD_ENABLE_ADAPTER 0x1
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348 | /*
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349 | * Media type and status.
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350 | * Window 4/Port 0A
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351 | */
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352 | #define ENABLE_UTP 0xc0
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353 | #define DISABLE_UTP 0x0
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354 |
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355 | /*
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356 | * Resource control register
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357 | */
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358 |
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359 | #define SET_IRQ(i) ( ((i)<<12) | 0xF00) /* set IRQ i */
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360 |
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361 | /*
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362 | * Receive status register
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363 | */
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364 |
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365 | #define RX_BYTES_MASK (unsigned short) (0x07ff)
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366 | #define RX_ERROR 0x4000
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367 | #define RX_INCOMPLETE 0x8000
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368 |
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369 |
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370 | /*
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371 | * Misc defines for various things.
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372 | */
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373 | #define ACTIVATE_ADAPTER_TO_CONFIG 0xff /* to the id_port */
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374 | #define MFG_ID 0x6d50 /* in EEPROM and W0 ADDR_CONFIG */
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375 | #define PROD_ID 0x9150
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376 |
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377 | #define AUI 0x1
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378 | #define BNC 0x2
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379 | #define UTP 0x4
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380 |
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381 | #define RX_BYTES_MASK (unsigned short) (0x07ff)
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382 |
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383 | /* EISA support */
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384 | #define EP_EISA_START 0x1000
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385 | #define EP_EISA_W0 0x0c80
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386 |
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387 | #ifdef INCLUDE_3C529
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388 | /* MCA support */
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389 | #define MCA_MOTHERBOARD_SETUP_REG 0x94
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390 | #define MCA_ADAPTER_SETUP_REG 0x96
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391 | #define MCA_MAX_SLOT_NR 8
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392 | #define MCA_POS_REG(n) (0x100+(n))
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393 | #endif
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394 |
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395 | /*
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396 | * Local variables:
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397 | * c-basic-offset: 8
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398 | * End:
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399 | */
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