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annotate packages/devs/eth/amd/pcnet/current/src/if_pcnet.c @ 199:920b9b754b53

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Merge from eCos master repository on 2001-12-15-12:00:33-GMT
author jlarmour
date Sat, 15 Dec 2001 13:42:19 +0000
parents ea3f0bd33a73
children 8147f1c99f15
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1 //==========================================================================
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2 //
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3 // dev/if_pcnet.c
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4 //
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5 // Ethernet device driver for AMD PCNET compatible controllers
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6 //
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7 //==========================================================================
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8 //####COPYRIGHTBEGIN####
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9 //
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10 // -------------------------------------------
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11 // The contents of this file are subject to the Red Hat eCos Public License
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12 // Version 1.1 (the "License"); you may not use this file except in
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13 // compliance with the License. You may obtain a copy of the License at
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14 // http://www.redhat.com/
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15 //
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16 // Software distributed under the License is distributed on an "AS IS"
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17 // basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
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18 // License for the specific language governing rights and limitations under
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19 // the License.
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20 //
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21 // The Original Code is eCos - Embedded Configurable Operating System,
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22 // released September 30, 1998.
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23 //
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24 // The Initial Developer of the Original Code is Red Hat.
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25 // Portions created by Red Hat are
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26 // Copyright (C) 1998, 1999, 2000, 2001 Red Hat, Inc.
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27 // All Rights Reserved.
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28 // -------------------------------------------
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29 //
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30 //####COPYRIGHTEND####
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31 //####BSDCOPYRIGHTBEGIN####
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32 //
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33 // -------------------------------------------
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34 //
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35 // Portions of this software may have been derived from OpenBSD or other sources,
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36 // and are covered by the appropriate copyright disclaimers included herein.
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37 //
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38 // -------------------------------------------
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39 //
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40 //####BSDCOPYRIGHTEND####
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41 //==========================================================================
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42 //#####DESCRIPTIONBEGIN####
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43 //
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44 // Author(s): jskov, based on lan91cxx driver by hmt & jskov
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45 // Contributors: gthomas, jskov, hmt
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46 // Date: 2001-04-02
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47 // Purpose:
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48 // Description: hardware driver for AMD PCNet (and possibly Lance) ethernet
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49 // Notes: The controller is used in its 16bit mode. That means that
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50 // all addresses are 24bit only - and that all controller
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51 // accessed memory must be within the same 16MB region
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52 // (starting at 0 on older controllers).
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53 //
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54 // The KEEP_STATISTICS code is not implemented yet. Look
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55 // for FIXME macro.
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56 //
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57 //####DESCRIPTIONEND####
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58 //
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59 //==========================================================================
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60
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61 #include <pkgconf/system.h>
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62 #include <pkgconf/devs_eth_amd_pcnet.h>
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63 #include <cyg/infra/cyg_type.h>
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64 #include <cyg/hal/hal_arch.h>
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65 #include <cyg/hal/hal_intr.h>
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66 #include <cyg/infra/cyg_ass.h>
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67 #include <cyg/infra/diag.h>
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68 #include <cyg/hal/drv_api.h>
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69 #include <cyg/hal/hal_if.h> // delays
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70 #include <string.h>
182
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71 #include <netdev.h>
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72 #include <eth_drv.h>
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73 #ifdef CYGPKG_NET
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74 #include <pkgconf/net.h>
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75 #include <cyg/kernel/kapi.h>
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76 #include <net/if.h> /* Needed for struct ifnet */
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77 #include <pkgconf/io_eth_drivers.h>
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78 #endif
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79 #include CYGHWR_MEMORY_LAYOUT_H
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80
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81 #ifdef CYGPKG_IO_PCI
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82 #include <cyg/io/pci.h>
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83 #else
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84 #error "Need PCI package here"
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85 #endif
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86
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87 #define FIXME 0
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88
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89 #define _BUF_SIZE 1544
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90
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91 #ifdef CYGPKG_INFRA_DEBUG
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92 // Then we log, OOI, the number of times we get a bad packet number
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93 // from the tx done fifo.
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94 int pcnet_txfifo_good = 0;
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95 int pcnet_txfifo_bad = 0;
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96 #endif
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97
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98 #include "amd_pcnet.h"
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99 #define __WANT_DEVS
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100 #include CYGDAT_DEVS_ETH_AMD_PCNET_INL
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101 #undef __WANT_DEVS
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102
198
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103 #ifdef CYGPKG_REDBOOT
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104
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105 static void db_printf( char *fmt, ... )
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106 {
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107 extern int start_console(void);
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108 extern void end_console(int);
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109 va_list a;
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110 int old_console;
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111 va_start( a, fmt );
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112 old_console = start_console();
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113 diag_vprintf( fmt, a );
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114 end_console(old_console);
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115 va_end( a );
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116 }
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117
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118 #else
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119
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120 #define db_printf diag_printf
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121
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122 #endif
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123
182
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124 static void pcnet_poll(struct eth_drv_sc *sc);
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125
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126 // This ISR is called when the ethernet interrupt occurs
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127 static cyg_uint32
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128 pcnet_isr(cyg_vector_t vector, cyg_addrword_t data)
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129 {
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130 struct pcnet_priv_data *cpd = (struct pcnet_priv_data *)data;
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131
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132 DEBUG_FUNCTION();
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133
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134 INCR_STAT( interrupts );
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135
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136 cyg_drv_interrupt_mask(cpd->interrupt);
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137 cyg_drv_interrupt_acknowledge(cpd->interrupt);
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138 return (CYG_ISR_HANDLED|CYG_ISR_CALL_DSR); // Run the DSR
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139 }
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140
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141 static void
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142 pcnet_dsr(cyg_vector_t vector, cyg_ucount32 count, cyg_addrword_t data)
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143 {
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144 // This conditioning out is necessary because of explicit calls to this
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145 // DSR - which would not ever be called in the case of a polled mode
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146 // usage ie. in RedBoot.
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147 #ifdef CYGPKG_IO_ETH_DRIVERS_NET
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148 struct pcnet_priv_data* cpd = (struct pcnet_priv_data *)data;
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149 struct cyg_netdevtab_entry *ndp = (struct cyg_netdevtab_entry *)(cpd->ndp);
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150 struct eth_drv_sc *sc = (struct eth_drv_sc *)(ndp->device_instance);
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151
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152 // but here, it must be a *sc:
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153 eth_drv_dsr( vector, count, (cyg_addrword_t)sc );
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154 #else
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155 # ifndef CYGPKG_REDBOOT
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156 # error Empty PCnet ethernet DSR is compiled. Is this what you want?
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157 # endif
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158 #endif
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159 }
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160
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161
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162 // The deliver function (ex-DSR) handles the ethernet [logical] processing
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163 static void
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164 pcnet_deliver(struct eth_drv_sc *sc)
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165 {
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166 struct pcnet_priv_data *cpd =
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167 (struct pcnet_priv_data *)sc->driver_private;
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168
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169 DEBUG_FUNCTION();
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170
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171 // Service the interrupt:
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172 pcnet_poll(sc);
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173 // Allow interrupts to happen again
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174 cyg_drv_interrupt_unmask(cpd->interrupt);
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175 }
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176
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177 static int
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178 pcnet_int_vector(struct eth_drv_sc *sc)
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179 {
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180 struct pcnet_priv_data *cpd =
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181 (struct pcnet_priv_data *)sc->driver_private;
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182
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183 return (cpd->interrupt);
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184 }
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185
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186 // ------------------------------------------------------------------------
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187 // Memory management
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188 //
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189 // Simply carve off from the front of the PCI mapped window into real memory
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190 static cyg_uint32 pcnet_heap_size;
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191 static cyg_uint8 *pcnet_heap_base;
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192 static cyg_uint8 *pcnet_heap_free;
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193
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194 static void*
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195 pciwindow_mem_alloc(int size)
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196 {
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197 void *p_memory;
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198 int _size = size;
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199
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200 CYG_ASSERT(
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201 (CYGHWR_AMD_PCNET_PCI_MEM_MAP_BASE <= (int)pcnet_heap_free)
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202 &&
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203 ((CYGHWR_AMD_PCNET_PCI_MEM_MAP_BASE +
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204 CYGHWR_AMD_PCNET_PCI_MEM_MAP_SIZE) > (int)pcnet_heap_free)
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205 &&
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206 (0 < pcnet_heap_size)
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207 &&
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208 (CYGHWR_AMD_PCNET_PCI_MEM_MAP_SIZE >= pcnet_heap_size)
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209 &&
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210 (CYGHWR_AMD_PCNET_PCI_MEM_MAP_BASE == (int)pcnet_heap_base),
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211 "Heap variables corrupted" );
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212
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213 p_memory = (void *)0;
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214 size = (size + 3) & ~3;
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215 if ( (pcnet_heap_free+size) < (pcnet_heap_base+pcnet_heap_size) ) {
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216 cyg_uint32 *p;
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217 p_memory = (void *)pcnet_heap_free;
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218 pcnet_heap_free += size;
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219 for ( p = (cyg_uint32 *)p_memory; _size > 0; _size -= 4 )
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220 *p++ = 0;
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221 }
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222
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223 #if DEBUG & 9
198
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224 db_printf("Allocated %d bytes at 0x%08x\n", size, p_memory);
182
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225 #endif
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226
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227 return p_memory;
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228 }
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229
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230 static cyg_pci_match_func find_pcnet_match_func;
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231
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232 static cyg_bool
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233 find_pcnet_match_func( cyg_uint16 v, cyg_uint16 d, cyg_uint32 c, void *p )
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234 {
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235 #if DEBUG & 9
198
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236 db_printf("PCI match vendor 0x%04x device 0x%04x\n", v, d);
182
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237 #endif
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238 return (0x1022 == v) && (0x2000 == d);
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239 }
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240
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241 static int
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242 pci_init_find_pcnet( void )
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243 {
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244 cyg_pci_device_id devid;
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245 cyg_pci_device dev_info;
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246 cyg_uint16 cmd;
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247 int device_index;
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248 int found_devices = 0;
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249
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250 DEBUG_FUNCTION();
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251
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252 #ifdef CYGARC_UNCACHED_ADDRESS
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253 CYG_ASSERT( CYGARC_UNCACHED_ADDRESS((CYG_ADDRWORD)CYGMEM_SECTION_pci_window) ==
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254 CYGHWR_AMD_PCNET_PCI_MEM_MAP_BASE,
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255 "PCI window configured does not match PCI memory section base" );
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256 #else
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257 CYG_ASSERT( (CYG_ADDRWORD)CYGMEM_SECTION_pci_window ==
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258 CYGHWR_AMD_PCNET_PCI_MEM_MAP_BASE,
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259 "PCI window configured does not match PCI memory section base" );
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260 #endif
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261 CYG_ASSERT( CYGMEM_SECTION_pci_window_SIZE ==
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262 CYGHWR_AMD_PCNET_PCI_MEM_MAP_SIZE,
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263 "PCI window configured does not match PCI memory section size" );
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264
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265 if (
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266 #ifdef CYGARC_UNCACHED_ADDRESS
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267 CYGARC_UNCACHED_ADDRESS((CYG_ADDRWORD)CYGMEM_SECTION_pci_window) !=
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268 #else
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269 (CYG_ADDRWORD)CYGMEM_SECTION_pci_window !=
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270 #endif
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271 CYGHWR_AMD_PCNET_PCI_MEM_MAP_BASE
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272 ||
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273 CYGMEM_SECTION_pci_window_SIZE !=
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274 CYGHWR_AMD_PCNET_PCI_MEM_MAP_SIZE ) {
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275 #if DEBUG & 8
198
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276 db_printf("pci_init_find_pcnets(): PCI window misconfigured\n");
182
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277 #endif
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278 return 0;
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279 }
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280
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281 // First initialize the heap in PCI window'd memory
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282 pcnet_heap_size = CYGHWR_AMD_PCNET_PCI_MEM_MAP_SIZE;
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283 pcnet_heap_base = (cyg_uint8 *)CYGHWR_AMD_PCNET_PCI_MEM_MAP_BASE;
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284 pcnet_heap_free = pcnet_heap_base;
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285 #if DEBUG & 9
198
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286 db_printf("pcimem : 0x%08x size: 0x%08x\n", pcnet_heap_base, pcnet_heap_size);
182
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287 #endif
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288
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289 cyg_pci_init();
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290 #if DEBUG & 8
198
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291 db_printf("Finished cyg_pci_init();\n");
182
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292 #endif
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293
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294 devid = CYG_PCI_NULL_DEVID;
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295
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296 for (device_index = 0;
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297 device_index < CYGNUM_DEVS_ETH_AMD_PCNET_DEV_COUNT;
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298 device_index++) {
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299 struct pcnet_priv_data* cpd = pcnet_priv_array[device_index];
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300
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301 cpd->index = device_index;
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302
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303 // See above for find_pcnet_match_func - it selects any of several
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304 // variants. This is necessary in case we have multiple mixed-type
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305 // devices on one board in arbitrary orders.
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306 if (cyg_pci_find_matching( &find_pcnet_match_func, NULL, &devid )) {
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307 #if DEBUG & 8
198
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308 db_printf("eth%d = pcnet\n", device_index);
182
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309 #endif
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310 cyg_pci_get_device_info(devid, &dev_info);
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311
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312 cpd->interrupt_handle = 0; // Flag not attached.
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313 if (cyg_pci_translate_interrupt(&dev_info, &cpd->interrupt)) {
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314 #if DEBUG & 8
198
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315 db_printf(" Wired to HAL vector %d\n", cpd->interrupt);
182
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316 #endif
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317 cyg_drv_interrupt_create(
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318 cpd->interrupt,
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319 1, // Priority - unused
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320 (cyg_addrword_t)cpd,// Data item passed to ISR & DSR
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321 pcnet_isr, // ISR
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322 pcnet_dsr, // DSR
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323 &cpd->interrupt_handle, // handle to intr obj
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324 &cpd->interrupt_object ); // space for int obj
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325
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326 cyg_drv_interrupt_attach(cpd->interrupt_handle);
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327
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328 // Don't unmask the interrupt yet, that could get us into a
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329 // race.
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330 }
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331 else {
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332 cpd->interrupt = 0;
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333 #if DEBUG & 8
198
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334 db_printf(" Does not generate interrupts.\n");
182
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335 #endif
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336 }
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337
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338 if (cyg_pci_configure_device(&dev_info)) {
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339 #if DEBUG & 8
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340 int i;
198
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341 db_printf("Found device on bus %d, devfn 0x%02x:\n",
182
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342 CYG_PCI_DEV_GET_BUS(devid),
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343 CYG_PCI_DEV_GET_DEVFN(devid));
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344
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345 if (dev_info.command & CYG_PCI_CFG_COMMAND_ACTIVE) {
198
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346 db_printf(" Note that board is active. Probed"
182
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347 " sizes and CPU addresses invalid!\n");
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348 }
198
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349 db_printf(" Vendor 0x%04x", dev_info.vendor);
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350 db_printf("\n Device 0x%04x", dev_info.device);
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351 db_printf("\n Command 0x%04x, Status 0x%04x\n",
182
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352 dev_info.command, dev_info.status);
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353
198
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354 db_printf(" Class/Rev 0x%08x", dev_info.class_rev);
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355 db_printf("\n Header 0x%02x\n", dev_info.header_type);
182
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356
198
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357 db_printf(" SubVendor 0x%04x, Sub ID 0x%04x\n",
182
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358 dev_info.header.normal.sub_vendor,
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359 dev_info.header.normal.sub_id);
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360
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361 for(i = 0; i < CYG_PCI_MAX_BAR; i++) {
198
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362 db_printf(" BAR[%d] 0x%08x /", i, dev_info.base_address[i]);
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363 db_printf(" probed size 0x%08x / CPU addr 0x%08x\n",
182
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364 dev_info.base_size[i], dev_info.base_map[i]);
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365 }
198
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366 db_printf(" eth%d configured\n", device_index);
182
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367 #endif
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368 found_devices++;
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369 cpd->found = 1;
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370 cpd->active = 0;
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371 cpd->devid = devid;
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372 cpd->base = (unsigned char*) dev_info.base_map[0];
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373 #if DEBUG & 8
198
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374 db_printf(" I/O address = 0x%08x\n", cpd->base);
182
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375 #endif
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376
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377 // Don't use cyg_pci_set_device_info since it clears
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378 // some of the fields we want to print out below.
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379 cyg_pci_read_config_uint16(dev_info.devid,
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380 CYG_PCI_CFG_COMMAND, &cmd);
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381 cmd |= (CYG_PCI_CFG_COMMAND_IO // enable I/O space
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382 | CYG_PCI_CFG_COMMAND_MEMORY // enable memory space
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383 | CYG_PCI_CFG_COMMAND_MASTER); // enable bus master
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384 cyg_pci_write_config_uint16(dev_info.devid,
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385 CYG_PCI_CFG_COMMAND, cmd);
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386
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387 // This is the indicator for "uses an interrupt"
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388 if (cpd->interrupt_handle != 0) {
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389 cyg_drv_interrupt_acknowledge(cpd->interrupt);
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390 cyg_drv_interrupt_unmask(cpd->interrupt);
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391 #if DEBUG & 8
198
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392 db_printf(" Enabled interrupt %d\n", cpd->interrupt);
182
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393 #endif
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394 }
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395 #if DEBUG & 8
198
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396 db_printf(" **** Device enabled for I/O and Memory "
182
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397 "and Bus Master\n");
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398 #endif
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399 }
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400 else {
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401 cpd->found = 0;
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402 cpd->active = 0;
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403 #if DEBUG & 8
198
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404 db_printf("Failed to configure device %d\n", device_index);
182
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405 #endif
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406 }
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407 }
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408 else {
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409 cpd->found = 0;
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410 cpd->active = 0;
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411 #if DEBUG & 8
198
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412 db_printf("eth%d not found\n", device_index);
182
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413 #endif
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414 }
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415 }
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416
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417 if (0 == found_devices)
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418 return 0;
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419
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420 return 1;
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421 }
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422
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423
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424 static bool
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425 amd_pcnet_init(struct cyg_netdevtab_entry *tab)
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426 {
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427 static int initialized = 0; // only probe PCI et al *once*
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428 struct eth_drv_sc *sc = (struct eth_drv_sc *)tab->device_instance;
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429 struct pcnet_priv_data *cpd =
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430 (struct pcnet_priv_data *)sc->driver_private;
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431 cyg_uint16 val;
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432 cyg_uint32 b;
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433 cyg_uint8* p;
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434 cyg_uint8* d;
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435 cyg_uint8* init_table;
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436 int i;
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437
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438 DEBUG_FUNCTION();
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439
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440
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441 if ( 0 == initialized++ ) {
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442 // then this is the first time ever:
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443 if ( ! pci_init_find_pcnet() ) {
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444 #if DEBUG & 8
198
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445 db_printf( "pci_init_find_pcnet failed" );
182
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446 #endif
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447 return false;
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448 }
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449 }
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450
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451 // If this device is not present, exit
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452 if (0 == cpd->found)
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453 return 0;
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454
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455 cpd->txbusy = 0;
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456
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457 #if DEBUG & 8
198
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458 db_printf("PCNet at base 0x%08x, EEPROM key 0x%04x\n",
182
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459 cpd->base, _SU16(cpd->base, PCNET_IO_ID));
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460 #endif
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461
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462 #if 0
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463 // FIXME: Doesn't work with non-conforming EEPROMS
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464 if (PCNET_IO_ID_KEY != _SU16(cpd->base, PCNET_IO_ID) ) {
198
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465 db_printf("PCNet EPROM key not found\n");
182
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466 return false;
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467 }
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468 #endif
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469
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470 #if DEBUG & 9
198
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471 db_printf("pcimem : %08x size: %08x\n", pcnet_heap_base, pcnet_heap_size);
182
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472 #endif
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473
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474 // Prepare ESA
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475 if (!cpd->hardwired_esa) {
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476 // Use the address from the serial EEPROM
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477 p = cpd->base + PCNET_IO_EEPROM;
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478 for (i = 0; i < 6; i++)
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479 cpd->esa[i] = *p++;
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480 }
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481 #if DEBUG & 9
198
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482 db_printf("PCNET - %s ESA: %02x:%02x:%02x:%02x:%02x:%02x\n",
182
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483 (cpd->hardwired_esa) ? "static" : "eeprom",
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484 cpd->esa[0], cpd->esa[1], cpd->esa[2],
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485 cpd->esa[3], cpd->esa[4], cpd->esa[5] );
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486 #endif
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487
191
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488 #if CYGSEM_DEVS_ETH_AMD_PCNET_FORCE_10MBPS
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489 if (get_reg(sc,PCNET_ANR_AAR) & PCNET_ANR_AAR_100) {
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490 cyg_uint16 anr;
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491 int loop;
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492
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493 #if DEBUG & 9
198
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494 db_printf("%s: Forcing 10Mbps negotiation\n", __FUNCTION__);
191
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495 #endif
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496 // adjust speed/duplex auto-negotiation mask to clear 100Mbps bits
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497 anr = get_reg(sc,PCNET_ANR_AAR);
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498 anr &= ~PCNET_ANR_AAR_100;
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499 put_reg(sc,PCNET_ANR_AAR,anr);
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500 // renegotiate
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501 anr = get_reg(sc,PCNET_ANR_PHYCTRL);
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502 anr |= PCNET_ANR_PHYCTRL_RENEGOTIATE;
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503 put_reg(sc,PCNET_ANR_PHYCTRL,anr);
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504 loop = 100000;
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505 while (loop>0 && !(get_reg(sc,PCNET_ANR_PHYSTAT) & PCNET_ANR_PHYSTAT_AUTONEG_COMP))
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506 loop--;
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507 #if DEBUG & 9
198
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508 db_printf("ANR0: %04x\n",get_reg(sc,PCNET_ANR_PHYCTRL));
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509 db_printf("ANR1: %04x\n",get_reg(sc,PCNET_ANR_PHYSTAT));
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510 db_printf("ANR4: %04x\n",get_reg(sc,PCNET_ANR_AAR));
191
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511 #endif
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512 }
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513 #endif
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514
182
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515 // Prepare RX and TX rings
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516 p = cpd->rx_ring = (cyg_uint8*) CYGARC_UNCACHED_ADDRESS((cyg_uint32)pciwindow_mem_alloc((1<<cpd->rx_ring_log_cnt)*PCNET_RD_SIZE));
191
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517 memset(cpd->rx_ring,0,(1<<cpd->rx_ring_log_cnt)*PCNET_RD_SIZE);
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518
182
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519 d = cpd->rx_buffers = (cyg_uint8*) CYGARC_UNCACHED_ADDRESS((cyg_uint32)pciwindow_mem_alloc(_BUF_SIZE*cpd->rx_ring_cnt));
191
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520 memset(cpd->rx_buffers,0,_BUF_SIZE*cpd->rx_ring_cnt);
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521
182
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522 for (i = 0; i < cpd->rx_ring_cnt; i++) {
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523 HAL_PCI_CPU_TO_BUS(d, b);
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524 _SU32(p, PCNET_RD_PTR) = (b & PCNET_RD_PTR_MASK) | PCNET_RD_PTR_OWN;
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525 _SU16(p, PCNET_RD_BLEN) = (-_BUF_SIZE);
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526 p += PCNET_RD_SIZE;
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527 d += _BUF_SIZE;
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528 }
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529 cpd->rx_ring_next = 0;
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530
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531 p = cpd->tx_ring = (cyg_uint8*) CYGARC_UNCACHED_ADDRESS((cyg_uint32)pciwindow_mem_alloc((1<<cpd->tx_ring_log_cnt)*PCNET_TD_SIZE));
191
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532 memset(cpd->tx_ring,0,(1<<cpd->tx_ring_log_cnt)*PCNET_TD_SIZE);
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533
182
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534 d = cpd->tx_buffers = (cyg_uint8*) CYGARC_UNCACHED_ADDRESS((cyg_uint32)pciwindow_mem_alloc(_BUF_SIZE*cpd->tx_ring_cnt));
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535 for (i = 0; i < cpd->tx_ring_cnt; i++) {
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536 HAL_PCI_CPU_TO_BUS(d, b);
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537 _SU32(p, PCNET_RD_PTR) = b & PCNET_TD_PTR_MASK;
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538 p += PCNET_TD_SIZE;
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539 d += _BUF_SIZE;
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540 }
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541 cpd->tx_ring_free = cpd->tx_ring_alloc = cpd->tx_ring_owned = 0;
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542
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543 // Initialization table
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544 init_table = (cyg_uint8*)CYGARC_UNCACHED_ADDRESS((cyg_uint32)pciwindow_mem_alloc(PCNET_IB_SIZE));
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545 _SU16(init_table, PCNET_IB_MODE) = 0x0000;
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546 for (i = 0; i < 6; i++)
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547 _SU8(init_table, PCNET_IB_PADR0+i) = cpd->esa[i];
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548 for (i = 0; i < 8; i++)
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549 _SU8(init_table, PCNET_IB_LADRF0+i) = 0;
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550
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551 HAL_PCI_CPU_TO_BUS(cpd->rx_ring, b);
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diff changeset
552 _SU32(init_table, PCNET_IB_RDRA) = ((b & PCNET_IB_RDRA_PTR_mask)
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553 | (cpd->rx_ring_log_cnt << PCNET_IB_RDRA_CNT_shift));
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554 HAL_PCI_CPU_TO_BUS(cpd->tx_ring, b);
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555 _SU32(init_table, PCNET_IB_TDRA) = ((b & PCNET_IB_TDRA_PTR_mask)
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556 | (cpd->tx_ring_log_cnt << PCNET_IB_TDRA_CNT_shift));
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parents:
diff changeset
557
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558 #if DEBUG & 9
198
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diff changeset
559 db_printf("Loading up PCNet controller from table at 0x%08x\n", init_table);
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560 db_printf(" Mode 0x%04x\n", _SU16(init_table, PCNET_IB_MODE));
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561 db_printf(" PADR %02x:%02x:%02x:%02x:%02x:%02x ",
182
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562 _SU8(init_table, PCNET_IB_PADR0+0), _SU8(init_table, PCNET_IB_PADR0+1),
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diff changeset
563 _SU8(init_table, PCNET_IB_PADR0+2), _SU8(init_table, PCNET_IB_PADR0+3),
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564 _SU8(init_table, PCNET_IB_PADR0+4), _SU8(init_table, PCNET_IB_PADR0+5));
198
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diff changeset
565 db_printf("LADR %02x:%02x:%02x:%02x:%02x:%02x:%02x:%02x\n",
182
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diff changeset
566 _SU8(init_table, PCNET_IB_LADRF0+0), _SU8(init_table, PCNET_IB_LADRF0+1),
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567 _SU8(init_table, PCNET_IB_LADRF0+2), _SU8(init_table, PCNET_IB_LADRF0+3),
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diff changeset
568 _SU8(init_table, PCNET_IB_LADRF0+4), _SU8(init_table, PCNET_IB_LADRF0+5),
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
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569 _SU8(init_table, PCNET_IB_LADRF0+5), _SU8(init_table, PCNET_IB_LADRF0+7));
198
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parents: 191
diff changeset
570 db_printf(" RX 0x%08x (len %d) TX 0x%08x (len %d)\n",
182
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571 _SU32(init_table, PCNET_IB_RDRA) & 0x1fffffff,
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572 (_SU32(init_table, PCNET_IB_RDRA) >> PCNET_IB_RDRA_CNT_shift) & 7,
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573 _SU32(init_table, PCNET_IB_TDRA) & 0x1fffffff,
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574 (_SU32(init_table, PCNET_IB_TDRA) >> PCNET_IB_TDRA_CNT_shift) & 7);
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575 #endif
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576
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577 // Reset chip
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diff changeset
578 HAL_PCI_IO_READ_UINT16(cpd->base+PCNET_IO_RESET, val);
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579
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580 // Load up chip with buffers.
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jlarmour
parents:
diff changeset
581 // Note: There is a 16M limit on the addresses used by the driver
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582 // since the top 8 bits of the init_table address is appended to
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diff changeset
583 // all other addresses used by the controller.
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diff changeset
584 HAL_PCI_CPU_TO_BUS(init_table, b);
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diff changeset
585 put_reg(sc, PCNET_CSR_IBA0, (b >> 0) & 0xffff);
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586 put_reg(sc, PCNET_CSR_IBA1, (b >> 16) & 0xffff);
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587 // Disable automatic TX polling (_send will force a poll), pad
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588 // XT frames to legal length, mask status interrupts.
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589 put_reg(sc, PCNET_CSR_TFC, (PCNET_CSR_TFC_TXDPOLL | PCNET_CSR_TFC_APAD_XMT
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590 | PCNET_CSR_TFC_MFCOM | PCNET_CSR_TFC_RCVCCOM
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591 | PCNET_CSR_TFC_TXSTRTM));
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592 // Recover after TX FIFO underflow
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593 put_reg(sc, PCNET_CSR_IM, PCNET_CSR_IM_DXSUFLO);
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diff changeset
594 // Initialize controller - load up init_table
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diff changeset
595 put_reg(sc, PCNET_CSR_CSCR, PCNET_CSR_CSCR_INIT);
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596 while (0 == (get_reg(sc, PCNET_CSR_CSCR) & PCNET_CSR_CSCR_IDON));
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597
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diff changeset
598 // Stop controller
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diff changeset
599 put_reg(sc, PCNET_CSR_CSCR, PCNET_CSR_CSCR_STOP);
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diff changeset
600
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diff changeset
601 #if DEBUG & 9
198
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diff changeset
602 db_printf("PCNet controller state is now:\n");
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diff changeset
603 db_printf(" Mode 0x%04x TFC 0x%04x\n", _SU16(init_table, PCNET_IB_MODE), get_reg(sc, PCNET_CSR_TFC));
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604 db_printf(" PADR %04x:%04x:%04x ",
182
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diff changeset
605 get_reg(sc, PCNET_CSR_PAR0),
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diff changeset
606 get_reg(sc, PCNET_CSR_PAR1),
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diff changeset
607 get_reg(sc, PCNET_CSR_PAR2));
198
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diff changeset
608 db_printf("LADR %04x:%04x:%04x:%04x\n",
182
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diff changeset
609 get_reg(sc, PCNET_CSR_LAR0),
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diff changeset
610 get_reg(sc, PCNET_CSR_LAR1),
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611 get_reg(sc, PCNET_CSR_LAR2),
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612 get_reg(sc, PCNET_CSR_LAR3));
198
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613 db_printf(" RX 0x%04x%04x (len 0x%04x) TX 0x%04x%04x (len 0x%04x)\n",
182
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614 get_reg(sc, PCNET_CSR_BARRU), get_reg(sc, PCNET_CSR_BARRL),
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615 get_reg(sc, PCNET_CSR_RRLEN),
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616 get_reg(sc, PCNET_CSR_BATRU), get_reg(sc, PCNET_CSR_BATRL),
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diff changeset
617 get_reg(sc, PCNET_CSR_TRLEN));
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618
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619 val = get_reg(sc, PCNET_CSR_ID_LO);
198
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620 db_printf("PCnet ID 0x%04x (%s) ",
182
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diff changeset
621 val,
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622 (0x5003 == val) ? "Am79C973" : (0x7003 == val) ? "Am79C975" : "Unknown");
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diff changeset
623 val = get_reg(sc, PCNET_CSR_ID_HI);
198
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624 db_printf("Part IDU 0x%03x Silicon rev %d\n",
182
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625 val & 0x0fff, (val >> 12) & 0xf);
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
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626 #endif
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627
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628 // and record the net dev pointer
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629 cpd->ndp = (void *)tab;
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630
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diff changeset
631 // Start controller, but put it in suspended mode
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diff changeset
632 put_reg(sc, PCNET_CSR_CSCR, PCNET_CSR_CSCR_STOP);
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633 put_reg(sc, PCNET_CSR_CSCR, (PCNET_CSR_CSCR_IENA | PCNET_CSR_CSCR_STRT));
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634 i = 0;
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635 while (0 == (PCNET_CSR_CSCR_STRT & get_reg(sc, PCNET_CSR_CSCR))) {
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636 CYGACC_CALL_IF_DELAY_US(1000);
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diff changeset
637 put_reg(sc, PCNET_CSR_CSCR, (PCNET_CSR_CSCR_IENA | PCNET_CSR_CSCR_STRT));
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638 if (i++ == 1000) {
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diff changeset
639 #if DEBUG & 9
198
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640 db_printf("Failed to start the controller\n");
182
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641 #endif
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diff changeset
642 return false;
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643 }
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644 }
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645
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646 val = get_reg(sc, PCNET_CSR_ECI);
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647 val |= PCNET_CSR_ECI_SPND;
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648 put_reg(sc, PCNET_CSR_ECI, val);
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649 // Wait for device to suspend
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diff changeset
650 do {
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651 val = get_reg(sc, PCNET_CSR_ECI);
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652 } while (0 == (val & PCNET_CSR_ECI_SPND));
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653 cpd->active = 0;
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654
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655 // Initialize upper level driver
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656 (sc->funs->eth_drv->init)(sc, cpd->esa);
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657
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658 #if DEBUG & 9
198
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659 db_printf("Done\n");
182
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660 #endif
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661 return true;
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662 }
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663
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664 static void
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665 pcnet_stop(struct eth_drv_sc *sc)
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666 {
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667 cyg_uint16 reg;
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668 struct pcnet_priv_data *cpd =
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669 (struct pcnet_priv_data *)sc->driver_private;
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670
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671 DEBUG_FUNCTION();
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672
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673 reg = get_reg(sc, PCNET_CSR_ECI);
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674 reg |= PCNET_CSR_ECI_SPND;
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675 put_reg(sc, PCNET_CSR_ECI, reg);
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676 // Wait for device to suspend
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677 do {
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678 reg = get_reg(sc, PCNET_CSR_ECI);
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679 } while (0 == (reg & PCNET_CSR_ECI_SPND));
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680 cpd->active = 0;
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681 }
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682
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diff changeset
683 //
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
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684 // This function is called to "start up" the interface. It may be called
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diff changeset
685 // multiple times, even when the hardware is already running. It will be
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diff changeset
686 // called whenever something "hardware oriented" changes and should leave
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diff changeset
687 // the hardware ready to send/receive packets.
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
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diff changeset
688 //
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
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689 static void
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690 pcnet_start(struct eth_drv_sc *sc, unsigned char *enaddr, int flags)
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
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691 {
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692 cyg_uint16 reg;
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693 struct pcnet_priv_data *cpd =
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diff changeset
694 (struct pcnet_priv_data *)sc->driver_private;
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parents:
diff changeset
695 #ifdef CYGPKG_NET
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diff changeset
696 struct ifnet *ifp = &sc->sc_arpcom.ac_if;
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parents:
diff changeset
697 #endif
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jlarmour
parents:
diff changeset
698 DEBUG_FUNCTION();
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jlarmour
parents:
diff changeset
699
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jlarmour
parents:
diff changeset
700 // If device is already active, suspend it
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parents:
diff changeset
701 if (cpd->active) {
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parents:
diff changeset
702 reg = get_reg(sc, PCNET_CSR_ECI);
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parents:
diff changeset
703 reg |= PCNET_CSR_ECI_SPND;
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jlarmour
parents:
diff changeset
704 put_reg(sc, PCNET_CSR_ECI, reg);
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jlarmour
parents:
diff changeset
705 // Wait for device to suspend
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jlarmour
parents:
diff changeset
706 do {
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jlarmour
parents:
diff changeset
707 reg = get_reg(sc, PCNET_CSR_ECI);
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parents:
diff changeset
708 } while (0 == (reg & PCNET_CSR_ECI_SPND));
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parents:
diff changeset
709 cpd->active = 0;
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jlarmour
parents:
diff changeset
710 }
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parents:
diff changeset
711
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jlarmour
parents:
diff changeset
712 #ifdef CYGPKG_NET
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jlarmour
parents:
diff changeset
713 if (( 0
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
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parents:
diff changeset
714 #ifdef ETH_DRV_FLAGS_PROMISC_MODE
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parents:
diff changeset
715 != (flags & ETH_DRV_FLAGS_PROMISC_MODE)
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jlarmour
parents:
diff changeset
716 #endif
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parents:
diff changeset
717 ) || (ifp->if_flags & IFF_PROMISC)
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jlarmour
parents:
diff changeset
718 ) {
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
719 // Then we select promiscuous mode.
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parents:
diff changeset
720 cyg_uint16 rcr;
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diff changeset
721 rcr = get_reg(sc, PCNET_CSR_MODE );
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diff changeset
722 rcr |= PCNET_CSR_MODE_PROM;
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diff changeset
723 put_reg(sc, PCNET_CSR_MODE, rcr );
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jlarmour
parents:
diff changeset
724 }
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parents:
diff changeset
725 #endif
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jlarmour
parents:
diff changeset
726
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jlarmour
parents:
diff changeset
727 // Unsuspend the device
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jlarmour
parents:
diff changeset
728 reg = get_reg(sc, PCNET_CSR_ECI);
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jlarmour
parents:
diff changeset
729 reg &= ~PCNET_CSR_ECI_SPND;
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jlarmour
parents:
diff changeset
730 put_reg(sc, PCNET_CSR_ECI, reg);
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jlarmour
parents:
diff changeset
731 cpd->active = 1;
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parents:
diff changeset
732 }
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jlarmour
parents:
diff changeset
733
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
734 //
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
735 // This routine is called to perform special "control" opertions
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
736 //
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
737 static int
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
738 pcnet_control(struct eth_drv_sc *sc, unsigned long key,
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
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parents:
diff changeset
739 void *data, int data_length)
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
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parents:
diff changeset
740 {
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
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diff changeset
741 cyg_uint8 *esa = (cyg_uint8 *)data;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
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parents:
diff changeset
742 int i, res;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
743 cyg_uint16 reg;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
744 struct pcnet_priv_data *cpd =
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
745 (struct pcnet_priv_data *)sc->driver_private;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
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parents:
diff changeset
746 cyg_bool was_active = cpd->active;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
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parents:
diff changeset
747
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
748 DEBUG_FUNCTION();
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
749
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
750 // If device is already active, suspend it
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
751 if (cpd->active) {
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
752 reg = get_reg(sc, PCNET_CSR_ECI);
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
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parents:
diff changeset
753 reg |= PCNET_CSR_ECI_SPND;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
754 put_reg(sc, PCNET_CSR_ECI, reg);
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
755 // Wait for device to suspend
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
756 do {
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
757 reg = get_reg(sc, PCNET_CSR_ECI);
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
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diff changeset
758 } while (0 == (reg & PCNET_CSR_ECI_SPND));
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
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parents:
diff changeset
759 cpd->active = 0;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
760 }
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parents:
diff changeset
761
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
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diff changeset
762 res = 0; // expect success
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jlarmour
parents:
diff changeset
763 switch (key) {
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
764 case ETH_DRV_SET_MAC_ADDRESS:
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
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parents:
diff changeset
765 #if 9 & DEBUG
198
ea3f0bd33a73 Merge from eCos master repository on 2001-12-07-11:40:47-GMT
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parents: 191
diff changeset
766 db_printf("PCNET - set ESA: %02x:%02x:%02x:%02x:%02x:%02x\n",
182
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
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diff changeset
767 esa[0], esa[1], esa[2], esa[3], esa[4], esa[5] );
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
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diff changeset
768 #endif // DEBUG
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diff changeset
769
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
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diff changeset
770 for ( i = 0; i < sizeof(cpd->esa); i++ )
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
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diff changeset
771 cpd->esa[i] = esa[i];
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
772 for (i = 0; i < sizeof(cpd->esa); i += 2) {
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
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parents:
diff changeset
773 reg = cpd->esa[i] | (cpd->esa[i+1] << 8);
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
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parents:
diff changeset
774 put_reg(sc, PCNET_CSR_PAR0+i/2, reg );
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
775 }
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
776 break;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
777
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
778 #ifdef ETH_DRV_GET_MAC_ADDRESS
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
779 case ETH_DRV_GET_MAC_ADDRESS:
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
780 // Extract the MAC address that is in the chip, and tell the
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
781 // system about it.
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
782 for (i = 0; i < sizeof(cpd->esa); i += 2) {
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
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parents:
diff changeset
783 cyg_uint16 z = get_reg(sc, PCNET_CSR_PAR0+i/2 );
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
784 esa[i] = (cyg_uint8)(0xff & z);
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
785 esa[i+1] = (cyg_uint8)(0xff & (z >> 8));
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
786 }
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
787 break;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
788 #endif
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
789
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
790 #ifdef ETH_DRV_GET_IF_STATS_UD
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
791 case ETH_DRV_GET_IF_STATS_UD: // UD == UPDATE
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
792 #endif
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
793 // drop through
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
794 #ifdef ETH_DRV_GET_IF_STATS
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
795 case ETH_DRV_GET_IF_STATS:
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
796 #endif
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
797
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
798 #if defined(ETH_DRV_GET_IF_STATS) || defined (ETH_DRV_GET_IF_STATS_UD)
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
799 {
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
800 cyg_uint16 anr;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
801 struct ether_drv_stats *p = (struct ether_drv_stats *)data;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
802 // Chipset entry is no longer supported; RFC1573.
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
803 for ( i = 0; i < SNMP_CHIPSET_LEN; i++ )
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
804 p->snmp_chipset[i] = 0;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
805
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
806 // This perhaps should be a config opt, so you can make up your own
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
807 // description, or supply it from the instantiation.
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
808 strcpy( p->description, "AMD PCNet" );
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
809 // CYG_ASSERT( 48 > strlen(p->description), "Description too long" );
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
810
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
811 anr = get_reg(sc, PCNET_ANR_PHYSTAT);
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
812 if ((anr & PCNET_ANR_PHYSTAT_LINK) == 0) {
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
813 p->operational = 2; // LINK DOWN
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
814 p->duplex = 1; // UNKNOWN
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
815 p->speed = 0;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
816 }
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
817 else {
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
818 p->operational = 3; // LINK UP
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
819 anr = get_reg(sc, PCNET_ANR_PHYCTRL);
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
820
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
821 if (anr & PCNET_ANR_PHYCTRL_DUPLEX)
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
822 p->duplex = 3; // 3 = DUPLEX
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
823 else
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
824 p->duplex = 2; // 2 = SIMPLEX
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
825 p->speed = (anr & PCNET_ANR_PHYCTRL_100MBPS) ? 100 * 1000000 : 10 * 1000000;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
826 }
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
827
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
828 #if FIXME
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
829 #ifdef KEEP_STATISTICS
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
830 {
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
831 struct amd_pcnet_stats *ps = &(cpd->stats);
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
832
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
833 // Admit to it...
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
834 p->supports_dot3 = true;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
835
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
836 p->tx_good = ps->tx_good ;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
837 p->tx_max_collisions = ps->tx_max_collisions ;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
838 p->tx_late_collisions = ps->tx_late_collisions ;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
839 p->tx_underrun = ps->tx_underrun ;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
840 p->tx_carrier_loss = ps->tx_carrier_loss ;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
841 p->tx_deferred = ps->tx_deferred ;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
842 p->tx_sqetesterrors = ps->tx_sqetesterrors ;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
843 p->tx_single_collisions = ps->tx_single_collisions;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
844 p->tx_mult_collisions = ps->tx_mult_collisions ;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
845 p->tx_total_collisions = ps->tx_total_collisions ;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
846 p->rx_good = ps->rx_good ;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
847 p->rx_crc_errors = ps->rx_crc_errors ;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
848 p->rx_align_errors = ps->rx_align_errors ;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
849 p->rx_resource_errors = ps->rx_resource_errors ;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
850 p->rx_overrun_errors = ps->rx_overrun_errors ;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
851 p->rx_collisions = ps->rx_collisions ;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
852 p->rx_short_frames = ps->rx_short_frames ;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
853 p->rx_too_long_frames = ps->rx_too_long_frames ;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
854 p->rx_symbol_errors = ps->rx_symbol_errors ;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
855
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
856 p->interrupts = ps->interrupts ;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
857 p->rx_count = ps->rx_count ;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
858 p->rx_deliver = ps->rx_deliver ;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
859 p->rx_resource = ps->rx_resource ;
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jlarmour
parents:
diff changeset
860 p->rx_restart = ps->rx_restart ;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
861 p->tx_count = ps->tx_count ;
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jlarmour
parents:
diff changeset
862 p->tx_complete = ps->tx_complete ;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
863 p->tx_dropped = ps->tx_dropped ;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
864 }
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jlarmour
parents:
diff changeset
865 #endif // KEEP_STATISTICS
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
866 #endif // FIXME
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
867
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
868 p->tx_queue_len = 1;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
869 break;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
870 }
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
871 #endif
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
872 default:
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jlarmour
parents:
diff changeset
873 res = 1;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
874 break;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
875 }
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
876
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
877 // Restore controller state
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
878 if (was_active) {
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
879 // Unsuspend the device
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
880 reg = get_reg(sc, PCNET_CSR_ECI);
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
881 reg &= ~PCNET_CSR_ECI_SPND;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
882 put_reg(sc, PCNET_CSR_ECI, reg);
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
883 }
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
884
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
885 return res;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
886 }
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
887
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
888 //
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
889 // This routine is called to see if it is possible to send another packet.
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
890 // It will return non-zero if a transmit is possible, zero otherwise.
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
891 //
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
892 static int
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
893 pcnet_can_send(struct eth_drv_sc *sc)
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
894 {
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
895 struct pcnet_priv_data *cpd =
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
896 (struct pcnet_priv_data *)sc->driver_private;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
897 cyg_uint16 stat;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
898
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
899 DEBUG_FUNCTION();
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
900
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
901 stat = get_reg(sc, PCNET_ANR_PHYSTAT);
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
902 if ((stat & PCNET_ANR_PHYSTAT_LINK) == 0) {
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
903 return 0; // Link not connected
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
904 }
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
905
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
906 return (0 == cpd->txbusy);
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
907 }
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
908
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
909 //
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
910 // This routine is called to send data to the hardware.
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
911 static void
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
912 pcnet_send(struct eth_drv_sc *sc, struct eth_drv_sg *sg_list, int sg_len,
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
913 int total_len, unsigned long key)
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
914 {
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
915 struct pcnet_priv_data *cpd =
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
916 (struct pcnet_priv_data *)sc->driver_private;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
917 int i, len, plen, ring_entry;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
918
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
919 cyg_uint8* sdata = NULL;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
920 cyg_uint8 *d, *buf, *txd;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
921 cyg_uint16 ints;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
922 cyg_uint32 b;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
923
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
924 DEBUG_FUNCTION();
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
925
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
926 INCR_STAT( tx_count );
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
927
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
928 cpd->txbusy = 1;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
929 cpd->txkey = key;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
930
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
931 // Find packet length
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
932 plen = 0;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
933 for (i = 0; i < sg_len; i++)
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
934 plen += sg_list[i].len;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
935
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
936 CYG_ASSERT( plen == total_len, "sg data length mismatch" );
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
937
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
938 // Get next TX descriptor
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
939 ring_entry = cpd->tx_ring_free;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
940 do {
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
941 if (cpd->tx_ring_owned == cpd->tx_ring_cnt) {
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
942 // Is this a dead end? Probably is.
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
943 #if DEBUG & 1
198
ea3f0bd33a73 Merge from eCos master repository on 2001-12-07-11:40:47-GMT
jlarmour
parents: 191
diff changeset
944 db_printf("%s: Allocation failed! Retrying...\n", __FUNCTION__ );
182
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
945 #endif
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
946 continue;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
947 }
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
948
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
949 cpd->tx_ring_free++;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
950 cpd->tx_ring_owned++;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
951 if (cpd->tx_ring_free == cpd->tx_ring_cnt)
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
952 cpd->tx_ring_free = 0;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
953 } while (0);
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
954
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
955 txd = cpd->tx_ring + ring_entry*PCNET_TD_SIZE;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
956 buf = cpd->tx_buffers + ring_entry*_BUF_SIZE;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
957 CYG_ASSERT(0 == (_SU32(txd, PCNET_TD_PTR) & PCNET_TD_PTR_OWN),
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
958 "TX descriptor not free");
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
959
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
960 #if DEBUG & 4
198
ea3f0bd33a73 Merge from eCos master repository on 2001-12-07-11:40:47-GMT
jlarmour
parents: 191
diff changeset
961 db_printf("#####Tx descriptor 0x%08x buffer 0x%08x\n",
182
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
962 txd, buf);
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
963 #endif
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
964
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
965 // Put data into buffer
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
966 d = buf;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
967 for (i = 0; i < sg_len; i++) {
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
968 sdata = (cyg_uint8 *)sg_list[i].buf;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
969 len = sg_list[i].len;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
970
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
971 CYG_ASSERT( sdata, "No sg data pointer here" );
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
972 while(len--)
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
973 *d++ = *sdata++;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
974 }
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
975 CYG_ASSERT( sdata, "No sg data pointer outside" );
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
976
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
977 #if DEBUG & 1
198
ea3f0bd33a73 Merge from eCos master repository on 2001-12-07-11:40:47-GMT
jlarmour
parents: 191
diff changeset
978 db_printf("CSCR %04x\n", get_reg(sc, PCNET_CSR_CSCR));
182
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
979 #endif
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
980 _SU16(txd, PCNET_TD_LEN) = (-plen);
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
981 _SU16(txd, PCNET_TD_MISC) = 0;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
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982 HAL_PCI_CPU_TO_BUS(buf, b);
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983 _SU32(txd, PCNET_TD_PTR) = ((b & PCNET_TD_PTR_MASK)
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984 | PCNET_TD_PTR_OWN | PCNET_TD_PTR_STP | PCNET_TD_PTR_ENP);
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diff changeset
985
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diff changeset
986 #if DEBUG & 1
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987 cpd->txd = txd;
198
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diff changeset
988 db_printf("Last TX: LEN %04x MISC %04x PTR %08x\n",
182
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989 _SU16(cpd->txd, PCNET_TD_LEN),
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990 _SU16(cpd->txd, PCNET_TD_MISC),
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991 _SU32(cpd->txd, PCNET_TD_PTR));
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992 #endif
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993
199
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994 // This delay seems to be necessary on some platforms
198
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995 // Why it is needed is not clear, but removing it or
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996 // reducing it cause transmission failures in RedBoot (at least).
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diff changeset
997 CYGACC_CALL_IF_DELAY_US(100);
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998
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999
182
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1000 // Set transmit demand
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1001 ints = get_reg(sc, PCNET_CSR_CSCR);
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1002 ints &= PCNET_CSR_CSCR_EV_MASK;
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1003 ints |= PCNET_CSR_CSCR_TDMD;
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1004 put_reg(sc, PCNET_CSR_CSCR, ints);
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1005
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1006 #if DEBUG & 1
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1007 ints = get_reg(sc, PCNET_CSR_CSCR);
198
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1008 db_printf("%s:END: ints at TX: 0x%04x\n", __FUNCTION__, ints);
182
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1009 #endif
198
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1010
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1011 // This is another mystery delay like the one above. This one is
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1012 // even stranger, since waiting here at the _end_ of the function
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1013 // should have no effect.
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1014 CYGACC_CALL_IF_DELAY_US(200);
182
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1015 }
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1016
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1017 static void
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1018 pcnet_TxEvent(struct eth_drv_sc *sc, int stat)
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1019 {
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1020 struct pcnet_priv_data *cpd =
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1021 (struct pcnet_priv_data *)sc->driver_private;
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1022 int success = 1;
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1023 cyg_uint8 *txd;
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1024 cyg_uint16 ints;
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1025 cyg_uint32 pkt_stat;
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1026
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1027 DEBUG_FUNCTION();
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1028
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1029 INCR_STAT( tx_complete );
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1030
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1031 txd = cpd->tx_ring + cpd->tx_ring_alloc*PCNET_TD_SIZE;
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1032 pkt_stat = _SU32(txd, PCNET_TD_PTR);
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1033 if (pkt_stat & PCNET_TD_PTR_OWN) {
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1034 #if DEBUG & 1
198
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1035 db_printf("%s: got TX completion when buffer is still owned\n", __FUNCTION__);
182
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1036 #endif
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1037 // first dirty ring entry not freed - wtf?
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1038 }
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1039
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1040 if (pkt_stat & PCNET_TD_PTR_ERR) {
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1041 // We had an error. Tell the stack.
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1042 success = 0;
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1043 #if DEBUG & 1
198
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1044 db_printf("%s: TX failure, retrying...\n", __FUNCTION__);
182
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1045 #endif
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1046 }
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1047
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1048 cpd->tx_ring_alloc++;
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1049 if (cpd->tx_ring_alloc == cpd->tx_ring_cnt)
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1050 cpd->tx_ring_alloc = 0;
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diff changeset
1051 cpd->tx_ring_owned--;
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1052
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1053 #if FIXME
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diff changeset
1054 #ifdef KEEP_STATISTICS
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1055 {
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1056 cyg_uint16 reg;
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1057
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1058 reg = get_reg( sc, PCNET_CSR_CSCR );
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1059
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1060 // Covering each bit in turn...
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1061 if ( reg & PCNET_STATUS_TX_UNRN ) INCR_STAT( tx_underrun );
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1062 //if ( reg & PCNET_STATUS_LINK_OK ) INCR_STAT( );
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1063 //if ( reg & PCNET_STATUS_CTR_ROL ) INCR_STAT( );
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1064 //if ( reg & PCNET_STATUS_EXC_DEF ) INCR_STAT( );
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1065 if ( reg & PCNET_STATUS_LOST_CARR ) INCR_STAT( tx_carrier_loss );
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1066 if ( reg & PCNET_STATUS_LATCOL ) INCR_STAT( tx_late_collisions );
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1067 //if ( reg & PCNET_STATUS_WAKEUP ) INCR_STAT( );
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1068 if ( reg & PCNET_STATUS_TX_DEFR ) INCR_STAT( tx_deferred );
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1069 //if ( reg & PCNET_STATUS_LTX_BRD ) INCR_STAT( );
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1070 if ( reg & PCNET_STATUS_SQET ) INCR_STAT( tx_sqetesterrors );
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1071 if ( reg & PCNET_STATUS_16COL ) INCR_STAT( tx_max_collisions );
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1072 //if ( reg & PCNET_STATUS_LTX_MULT) INCR_STAT( );
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1073 if ( reg & PCNET_STATUS_MUL_COL ) INCR_STAT( tx_mult_collisions );
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1074 if ( reg & PCNET_STATUS_SNGL_COL ) INCR_STAT( tx_single_collisions );
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1075 if ( reg & PCNET_STATUS_TX_SUC ) INCR_STAT( tx_good );
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1076
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1077 cpd->stats.tx_total_collisions =
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1078 cpd->stats.tx_late_collisions +
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1079 cpd->stats.tx_max_collisions +
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1080 cpd->stats.tx_mult_collisions +
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1081 cpd->stats.tx_single_collisions;
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1082
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1083 // We do not need to look in the Counter Register (PCNET_COUNTER)
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1084 // because it just mimics the info we already have above.
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1085 }
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1086 #endif // KEEP_STATISTICS
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1087 #endif // FIXME
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1088
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1089 // Ack the TX int which clears the packet from the TX completion
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1090 // queue.
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1091 ints = get_reg(sc, PCNET_CSR_CSCR);
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1092 ints |= PCNET_CSR_CSCR_TINT;
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1093 put_reg(sc, PCNET_CSR_CSCR, ints);
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1094
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1095 #if DEBUG & 4
198
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1096 db_printf("#####Tx packet freed 0x%08x\n", txd );
182
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1097 #endif
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1098
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1099 if ( cpd->txbusy ) {
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1100 cpd->txbusy = 0;
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1101 (sc->funs->eth_drv->tx_done)(sc, cpd->txkey, success);
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1102 }
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1103 }
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1104
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1105
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1106 //
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1107 // This function is called when a packet has been received. Its job is
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
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diff changeset
1108 // to prepare to unload the packet from the hardware. Once the length of
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1109 // the packet is known, the upper layer of the driver can be told. When
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diff changeset
1110 // the upper layer is ready to unload the packet, the internal function
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diff changeset
1111 // 'pcnet_recv' will be called to actually fetch it from the hardware.
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
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1112 //
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1113 static void
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1114 pcnet_RxEvent(struct eth_drv_sc *sc)
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1115 {
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1116 struct pcnet_priv_data *cpd =
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1117 (struct pcnet_priv_data *)sc->driver_private;
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1118 cyg_uint8 *rxd;
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1119 cyg_uint32 rstat;
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diff changeset
1120 cyg_uint16 ints, len;
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jlarmour
parents:
diff changeset
1121
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1122 DEBUG_FUNCTION();
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jlarmour
parents:
diff changeset
1123
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diff changeset
1124 ints = get_reg(sc, PCNET_CSR_CSCR);
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diff changeset
1125 #if DEBUG & 1
198
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diff changeset
1126 db_printf("RxEvent - CSR: 0x%04x\n", ints);
182
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parents:
diff changeset
1127 #endif
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jlarmour
parents:
diff changeset
1128
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jlarmour
parents:
diff changeset
1129 while (1) {
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jlarmour
parents:
diff changeset
1130 // Get state of next (supposedly) full ring entry
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jlarmour
parents:
diff changeset
1131 cpd->rxpacket = cpd->rx_ring_next;
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diff changeset
1132 rxd = cpd->rx_ring + cpd->rxpacket*PCNET_RD_SIZE;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
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parents:
diff changeset
1133 rstat = _SU32(rxd, PCNET_RD_PTR);
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jlarmour
parents:
diff changeset
1134
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1135 // Keep going until we hit an entry that is owned by the
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1136 // controller.
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1137 if (rstat & PCNET_RD_PTR_OWN) {
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jlarmour
parents:
diff changeset
1138 #if DEBUG & 1
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jlarmour
parents:
diff changeset
1139 int i;
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diff changeset
1140 for (i = 0; i < cpd->rx_ring_cnt; i++) {
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
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parents:
diff changeset
1141 rxd = cpd->rx_ring + i*PCNET_RD_SIZE;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
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parents:
diff changeset
1142 rstat = _SU32(rxd, PCNET_RD_PTR);
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parents:
diff changeset
1143
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jlarmour
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diff changeset
1144 if (!(rstat & PCNET_RD_PTR_OWN)) {
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jlarmour
parents:
diff changeset
1145 int i;
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jlarmour
parents:
diff changeset
1146 cyg_uint32 rstat;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1147 cyg_uint16 mlen, blen;
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jlarmour
parents:
diff changeset
1148 cyg_uint8* rxd;
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diff changeset
1149
198
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diff changeset
1150 db_printf("%s: Inconsistent RX state\n", __FUNCTION__);
182
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diff changeset
1151 for (i = 0; i < cpd->rx_ring_cnt; i++) {
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
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diff changeset
1152 rxd = cpd->rx_ring + i*PCNET_RD_SIZE;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
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parents:
diff changeset
1153
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
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diff changeset
1154 rstat = _SU32(rxd, PCNET_RD_PTR);
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
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parents:
diff changeset
1155 blen = _SU16(rxd, PCNET_RD_BLEN);
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
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parents:
diff changeset
1156 mlen = _SU16(rxd, PCNET_RD_MLEN);
198
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parents: 191
diff changeset
1157 db_printf(" %02d: 0x%08x:0x%04x:0x%04x\n", i, rstat, blen, mlen);
182
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diff changeset
1158 }
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diff changeset
1159 }
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
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diff changeset
1160 }
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1161 #endif
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jlarmour
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diff changeset
1162 break;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1163 }
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diff changeset
1164
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
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diff changeset
1165 #if DEBUG & 4
198
ea3f0bd33a73 Merge from eCos master repository on 2001-12-07-11:40:47-GMT
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parents: 191
diff changeset
1166 db_printf("#####Rx packet at index %d\n", cpd->rxpacket);
182
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
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parents:
diff changeset
1167 #endif
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jlarmour
parents:
diff changeset
1168
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1169 // Increment counts
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1170 INCR_STAT( rx_count );
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1171 cpd->rx_ring_next++;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1172 if (cpd->rx_ring_next == cpd->rx_ring_cnt) cpd->rx_ring_next = 0;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
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parents:
diff changeset
1173
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
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diff changeset
1174 len = _SU16(rxd, PCNET_RD_MLEN);
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1175
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
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parents:
diff changeset
1176 #ifdef KEEP_STATISTICS
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1177 //if ( rstat & PCNET_RD_PTR_FRAM ) INCR_STAT( rx_frame_errors );
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1178 //if ( rstat & PCNET_RD_PTR_OFLO ) INCR_STAT( );
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1179 if ( rstat & PCNET_RD_PTR_CRC ) INCR_STAT( rx_crc_errors );
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1180 //if ( rstat & PCNET_RD_PTR_BUFF ) INCR_STAT( );
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1181 #endif // KEEP_STATISTICS
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1182
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1183 if (0 == (rstat & PCNET_RD_PTR_ERR)) {
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1184 // It's OK
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1185 INCR_STAT( rx_good );
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1186
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1187 #if DEBUG & 1
198
ea3f0bd33a73 Merge from eCos master repository on 2001-12-07-11:40:47-GMT
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parents: 191
diff changeset
1188 db_printf("RxEvent good rx - stat: 0x%08x, len: 0x%04x\n", rstat, len);
182
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
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parents:
diff changeset
1189 #endif
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1190 // Check for bogusly short packets; can happen in promisc
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1191 // mode: Asserted against and checked by upper layer
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1192 // driver.
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1193 #ifdef CYGPKG_NET
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1194 if ( len > sizeof( struct ether_header ) )
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1195 // then it is acceptable; offer the data to the network stack
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1196 #endif
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1197 (sc->funs->eth_drv->recv)(sc, len);
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1198 } else {
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1199 // Not OK for one reason or another...
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1200 #if DEBUG & 1
198
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parents: 191
diff changeset
1201 db_printf("RxEvent - No RX bit: stat: 0x%08x, len: 0x%04x\n",
182
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1202 rstat, len);
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1203 #endif
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1204 }
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1205
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1206 // Free packet (clear all status flags, and set OWN)
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1207 _SU32(rxd, PCNET_RD_PTR) &= PCNET_RD_PTR_MASK;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1208 _SU32(rxd, PCNET_RD_PTR) |= PCNET_RD_PTR_OWN;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1209 }
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1210
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1211 // Ack RX interrupt set
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1212 ints = get_reg(sc, PCNET_CSR_CSCR);
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1213 ints &= PCNET_CSR_CSCR_EV_MASK;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1214 ints |= PCNET_CSR_CSCR_RINT;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1215 put_reg(sc, PCNET_CSR_CSCR, ints);
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1216 }
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1217
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1218 //
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1219 // This function is called as a result of the "eth_drv_recv()" call above.
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1220 // Its job is to actually fetch data for a packet from the hardware once
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1221 // memory buffers have been allocated for the packet. Note that the buffers
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1222 // may come in pieces, using a scatter-gather list. This allows for more
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1223 // efficient processing in the upper layers of the stack.
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1224 //
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1225 static void
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1226 pcnet_recv(struct eth_drv_sc *sc, struct eth_drv_sg *sg_list, int sg_len)
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1227 {
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1228 struct pcnet_priv_data *cpd =
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1229 (struct pcnet_priv_data *)sc->driver_private;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1230 int i, mlen=0, plen;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
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diff changeset
1231 cyg_uint8 *data, *rxd, *buf;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1232
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1233 DEBUG_FUNCTION();
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1234
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
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diff changeset
1235 rxd = cpd->rx_ring + cpd->rxpacket*PCNET_TD_SIZE;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1236 buf = cpd->rx_buffers + cpd->rxpacket*_BUF_SIZE;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1237
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1238 INCR_STAT( rx_deliver );
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1239
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
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diff changeset
1240 plen = _SU16(rxd, PCNET_RD_MLEN);
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1241
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
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diff changeset
1242 for (i = 0; i < sg_len; i++) {
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1243 data = (cyg_uint8*)sg_list[i].buf;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1244 mlen = sg_list[i].len;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1245
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
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diff changeset
1246 #if DEBUG & 1
198
ea3f0bd33a73 Merge from eCos master repository on 2001-12-07-11:40:47-GMT
jlarmour
parents: 191
diff changeset
1247 db_printf("%s : mlen %x, plen %x\n", __FUNCTION__, mlen, plen);
182
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1248 #endif
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1249 if (data) {
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1250 while (mlen > 0) {
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1251 *data++ = *buf++;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1252 mlen--;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1253 plen--;
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1254 }
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1255 }
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1256 }
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1257 }
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1258
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1259 static void
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1260 pcnet_poll(struct eth_drv_sc *sc)
f62680ef1804 Merge from eCos master repository on 2001-09-07-06:43:02-BST
jlarmour
parents:
diff changeset
1261 {
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1262 cyg_uint16 event;
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1263
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1264 // DEBUG_FUNCTION();
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1265
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1266 while (1) {
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1267 // Get the (unmasked) requests
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1268 event = get_reg(sc, PCNET_CSR_CSCR);
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1269 if (!((PCNET_CSR_CSCR_ERR|PCNET_CSR_CSCR_INTR) & event))
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1270 break;
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1271
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1272 if (event & PCNET_CSR_CSCR_RINT) {
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1273 pcnet_RxEvent(sc);
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1274 }
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1275 else if (event & PCNET_CSR_CSCR_TINT) {
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1276 pcnet_TxEvent(sc, event);
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1277 }
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1278 else if (event & PCNET_CSR_CSCR_MISS) {
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1279 #if DEBUG & 1
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1280 int i;
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1281 cyg_uint32 rstat;
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1282 cyg_uint16 mlen, blen;
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1283 cyg_uint8* rxd;
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1284 struct pcnet_priv_data *cpd =
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1285 (struct pcnet_priv_data *)sc->driver_private;
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1286
198
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1287 db_printf("%s: Ran out of RX buffers (%04x)\n", __FUNCTION__, event);
182
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1288 for (i = 0; i < cpd->rx_ring_cnt; i++) {
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1289 rxd = cpd->rx_ring + i*PCNET_TD_SIZE;
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1290
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1291 rstat = _SU32(rxd, PCNET_RD_PTR);
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1292 blen = _SU16(rxd, PCNET_RD_BLEN);
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1293 mlen = _SU16(rxd, PCNET_RD_MLEN);
198
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1294 db_printf(" %02d: 0x%08x:0x%04x:0x%04x\n", i, rstat, blen, mlen);
182
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1295 }
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1296 #endif
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1297 event &= PCNET_CSR_CSCR_EV_MASK;
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1298 event |= PCNET_CSR_CSCR_MISS;
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1299 put_reg(sc, PCNET_CSR_CSCR, event);
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1300 }
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1301 else {
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1302 #if DEBUG & 1
198
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1303 db_printf("%s: Unknown interrupt: 0x%04x\n", __FUNCTION__, event);
182
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1304 #endif
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1305 put_reg(sc, PCNET_CSR_CSCR, event);
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1306 }
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1307 }
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1308 }
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1309
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1310 // EOF if_pcnet.c