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annotate packages/io/eth/current/include/eth_drv.h @ 1471:bdce752faff6

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* include/eth_drv.h: * src/lwip/eth_drv.c: Update to support more than one device and be in sync with current lwip code.
author asl
date Sat, 17 Jan 2004 14:14:41 +0000
parents b56e22bed6a2
children
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1 //==========================================================================
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2 //
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3 // include/cyg/io/eth/eth_drv.h
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4 //
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5 // High level networking driver interfaces
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6 //
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7 //==========================================================================
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8 //####ECOSGPLCOPYRIGHTBEGIN####
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9 // -------------------------------------------
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10 // This file is part of eCos, the Embedded Configurable Operating System.
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11 // Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
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12 //
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13 // eCos is free software; you can redistribute it and/or modify it under
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14 // the terms of the GNU General Public License as published by the Free
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15 // Software Foundation; either version 2 or (at your option) any later version.
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16 //
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17 // eCos is distributed in the hope that it will be useful, but WITHOUT ANY
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18 // WARRANTY; without even the implied warranty of MERCHANTABILITY or
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19 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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20 // for more details.
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21 //
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22 // You should have received a copy of the GNU General Public License along
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23 // with eCos; if not, write to the Free Software Foundation, Inc.,
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24 // 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
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25 //
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26 // As a special exception, if other files instantiate templates or use macros
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27 // or inline functions from this file, or you compile this file and link it
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28 // with other works to produce a work based on this file, this file does not
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29 // by itself cause the resulting work to be covered by the GNU General Public
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30 // License. However the source code for this file must still be made available
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31 // in accordance with section (3) of the GNU General Public License.
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32 //
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33 // This exception does not invalidate any other reasons why a work based on
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34 // this file might be covered by the GNU General Public License.
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35 //
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36 // Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
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37 // at http://sources.redhat.com/ecos/ecos-license/
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38 // -------------------------------------------
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39 //####ECOSGPLCOPYRIGHTEND####
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40 //==========================================================================
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41 //#####DESCRIPTIONBEGIN####
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42 //
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43 // Author(s): gthomas
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44 // Contributors: gthomas
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45 // Date: 2000-01-10
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46 // Purpose:
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47 // Description: High level networking driver interfaces
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48 //
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49 //
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50 //####DESCRIPTIONEND####
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51 //
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52 //==========================================================================
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53
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54 // Ethernet driver structure
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55
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56 #ifndef _ETH_DRV_H_
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57 #define _ETH_DRV_H_
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58
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59 #include <pkgconf/system.h>
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60 #include <pkgconf/io_eth_drivers.h>
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61
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62 #ifdef CYGPKG_NET
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63 #include <sys/param.h>
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64 #include <sys/socket.h>
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65
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66 #include <net/if.h>
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67
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68 #ifdef INET
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69 #include <netinet/in.h>
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70 #include <netinet/in_systm.h>
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71 #include <netinet/in_var.h>
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72 #include <netinet/ip.h>
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73 #include <netinet/if_ether.h>
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74 #endif
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75
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76 #ifndef NBPFILTER
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77 #define NBPFILTER 0
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78 #endif
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79
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80 #if NBPFILTER > 0
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81 #include <net/bpf.h>
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82 #include <net/bpfdesc.h>
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83 #endif
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84
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85 #else // !CYGPKG_NET
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86 #include <cyg/hal/drv_api.h>
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87 #endif
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88 #ifdef CYGPKG_NET_LWIP
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89 #include "lwip/netif.h"
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90 #endif
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91
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92 struct eth_drv_sg {
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93 CYG_ADDRESS buf;
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94 CYG_ADDRWORD len;
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95 };
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96
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97 #define MAX_ETH_DRV_SG CYGNUM_IO_ETH_DRIVERS_SG_LIST_SIZE
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98
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99 struct eth_drv_sc;
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100
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101 struct eth_drv_funs {
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102 // Logical driver - initialization
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103 void (*init)(struct eth_drv_sc *sc,
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104 unsigned char *enaddr);
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105 // Logical driver - incoming packet notifier
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106 void (*recv)(struct eth_drv_sc *sc,
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107 int total_len);
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108 // Logical driver - outgoing packet notifier
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109 void (*tx_done)(struct eth_drv_sc *sc,
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110 CYG_ADDRESS key,
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111 int status);
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112 };
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113
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114 struct eth_hwr_funs {
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115 // Initialize hardware (including startup)
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116 void (*start)(struct eth_drv_sc *sc,
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117 unsigned char *enaddr,
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118 int flags);
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119 // Shut down hardware
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120 void (*stop)(struct eth_drv_sc *sc);
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121 // Device control (ioctl pass-thru)
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122 int (*control)(struct eth_drv_sc *sc,
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123 unsigned long key,
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124 void *data,
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125 int data_length);
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126 // Query - can a packet be sent?
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127 int (*can_send)(struct eth_drv_sc *sc);
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128 // Send a packet of data
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129 void (*send)(struct eth_drv_sc *sc,
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130 struct eth_drv_sg *sg_list,
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131 int sg_len,
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132 int total_len,
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133 unsigned long key);
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134 // Receive [unload] a packet of data
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135 void (*recv)(struct eth_drv_sc *sc,
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136 struct eth_drv_sg *sg_list,
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137 int sg_len);
121
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138 // Deliver data to/from device from/to stack memory space
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139 // (moves lots of memcpy()s out of DSRs into thread)
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140 void (*deliver)(struct eth_drv_sc *sc);
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141 // Poll for interrupts/device service
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142 void (*poll)(struct eth_drv_sc *sc);
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143 // Get interrupt information from hardware driver
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144 int (*int_vector)(struct eth_drv_sc *sc);
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145 // Logical driver interface
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146 struct eth_drv_funs *eth_drv, *eth_drv_old;
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147 };
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148
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149 #ifdef CYGPKG_IO_ETH_DRIVERS_STAND_ALONE
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150 struct arpcom {
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151 unsigned char esa[6];
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152 };
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153 #endif
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154
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155 #ifdef CYGPKG_NET_LWIP
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156 struct arpcom {
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157 struct netif ac_if;
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158 };
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159 #endif
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160
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161 struct eth_drv_sc {
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162 struct eth_hwr_funs *funs;
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163 void *driver_private;
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164 const char *dev_name;
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165 int state;
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166 struct arpcom sc_arpcom; /* ethernet common */
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167 };
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168
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169 #define ETH_DRV_SC(sc,priv,name,start,stop,control,can_send,send,recv,deliver,poll,int_vector) \
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170 static void start(struct eth_drv_sc *sc, unsigned char *enaddr, int flags); \
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171 static void stop(struct eth_drv_sc *sc); \
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172 static int control(struct eth_drv_sc *sc, unsigned long key, void *data, int data_length); \
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173 static int can_send(struct eth_drv_sc *sc); \
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174 static void send(struct eth_drv_sc *sc, struct eth_drv_sg *sg_list, int sg_len, int total, unsigned long key); \
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175 static void recv(struct eth_drv_sc *sc, struct eth_drv_sg *sg_list, int sg_len); \
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176 static void deliver(struct eth_drv_sc *sc); \
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177 static void poll(struct eth_drv_sc *sc); \
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178 static int int_vector(struct eth_drv_sc *sc); \
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179 static struct eth_hwr_funs sc##_funs = { \
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180 start, \
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181 stop, \
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182 control, \
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183 can_send, \
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184 send, \
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185 recv, \
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186 deliver, \
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187 poll, \
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188 int_vector, \
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189 &eth_drv_funs, \
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190 (struct eth_drv_funs *)0 }; \
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191 struct eth_drv_sc sc = {&sc##_funs, priv, name};
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192
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193 #define ETH_DRV_STATE_ACTIVE 0x0001
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194 #define ETH_DRV_NEEDS_DELIVERY 0x0002
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195 #define ETH_DRV_STATE_DEBUG 0x1000
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196
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197 // Register this as your DSR within your driver: it will cause your deliver
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198 // routine to be called from the network thread. The "data" parameter
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199 // *must* be your own "struct eth_drv_sc *sc" pointer.
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200 extern void eth_drv_dsr(cyg_vector_t vector,
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201 cyg_ucount32 count,
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202 cyg_addrword_t data);
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203
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204 extern struct eth_drv_funs eth_drv_funs;
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205
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206 #ifdef CYGPKG_IO_PCMCIA
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207 #ifdef CYGPKG_NET
208
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208 #include <cyg/io/eth/netdev.h>
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209 cyg_netdevtab_entry_t *eth_drv_netdev(char *name);
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210 #endif
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211 #endif // CYGPKG_IO_PCMCIA
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212
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213 // Control 'key's
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214 #define ETH_DRV_SET_MAC_ADDRESS 0x0100
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215
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216 #ifdef CYGPKG_NET
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217 #define ETH_DRV_GET_IF_STATS_UD 0x0101
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218 #define ETH_DRV_GET_IF_STATS 0x0102
208
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219 #include <cyg/io/eth/eth_drv_stats.h> // The struct * for these ops.
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220 #endif
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221
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222 #ifndef ETHER_ADDR_LEN
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223 #define ETHER_ADDR_LEN 6
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224 #endif
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225
208
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226 #define ETH_DRV_SET_MC_LIST 0x0110 // Set multicast list
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227 #define ETH_DRV_SET_MC_ALL 0x0111 // Set multicast all mode
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228 #define ETH_DRV_MAX_MC 8
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229 struct eth_drv_mc_list {
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230 int len;
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231 unsigned char addrs[ETH_DRV_MAX_MC][ETHER_ADDR_LEN];
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232 };
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233
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234 #ifndef CYGPKG_NET
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235 extern void eth_drv_buffers_init(void);
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236 extern int eth_drv_read(char *eth_hdr, char *buf, int len);
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237 extern void eth_drv_write(char *eth_hdr, char *buf, int len);
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238 extern int eth_drv_int_vector(void);
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239 extern void eth_drv_stop(void);
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240 extern unsigned char __local_enet_addr[];
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241 extern struct eth_drv_sc *__local_enet_sc;
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242 #endif
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243
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244 #endif // _ETH_DRV_H_