1 | /* |
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2 | * RTEMS NETWORK DRIVER FOR NATIONAL DP83932 `SONIC' |
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3 | * SYSTEMS-ORIENTED NETWORK INTERFACE CONTROLLER |
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4 | * |
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5 | * REUSABLE CHIP DRIVER |
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6 | * |
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7 | * References: |
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8 | * |
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9 | * 1) DP83932C-20/25/33 MHz SONIC(TM) Systems-Oriented Network Interface |
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10 | * Controller data sheet. TL/F/10492, RRD-B30M105, National Semiconductor, |
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11 | * 1995. |
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12 | * |
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13 | * 2) Software Driver Programmer's Guide for the DP83932 SONIC(TM), |
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14 | * Application Note 746, Wesley Lee and Mike Lui, TL/F/11140, |
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15 | * RRD-B30M75, National Semiconductor, March, 1991. |
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16 | * |
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17 | * COPYRIGHT (c) 1989-1997. |
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18 | * On-Line Applications Research Corporation (OAR). |
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19 | * |
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20 | * The license and distribution terms for this file may be |
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21 | * found in the file LICENSE in this distribution or at |
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22 | * http://www.OARcorp.com/rtems/license.html. |
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23 | * |
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24 | * $Id$ |
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25 | * |
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26 | * This driver was originally written and tested on a DY-4 DMV177, |
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27 | * which had a 100 Mhz PPC603e. |
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28 | * |
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29 | * This driver also works with DP83934CVUL-20/25 MHz, tested on |
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30 | * Tharsys ERC32 VME board. |
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31 | * |
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32 | * Rehaul to fix lost interrupts and buffers, and to use to use |
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33 | * interrupt-free transmission by Jiri, 22/03/1999. |
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34 | */ |
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35 | |
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36 | #include <rtems.h> |
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37 | #include <rtems/rtems_bsdnet.h> |
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38 | #include <libchip/sonic.h> |
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39 | |
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40 | #include <stdio.h> |
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41 | |
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42 | #include <errno.h> |
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43 | #include <rtems/error.h> |
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44 | |
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45 | #include <sys/param.h> |
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46 | #include <sys/mbuf.h> |
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47 | #include <sys/socket.h> |
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48 | #include <sys/sockio.h> |
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49 | #include <sys/sockio.h> |
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50 | |
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51 | #include <net/if.h> |
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52 | |
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53 | #include <netinet/in.h> |
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54 | #include <netinet/if_ether.h> |
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55 | |
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56 | /* |
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57 | * XXX fix this |
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58 | */ |
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59 | |
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60 | void *set_vector(void *, unsigned32, unsigned32); |
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61 | |
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62 | #if (SONIC_DEBUG & SONIC_DEBUG_DUMP_MBUFS) |
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63 | #include <rtems/dumpbuf.h> |
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64 | #endif |
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65 | |
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66 | /* |
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67 | * Use the top line if you want more symbols. |
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68 | */ |
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69 | |
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70 | #define SONIC_STATIC |
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71 | /* #define SONIC_STATIC static */ |
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72 | |
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73 | /* |
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74 | * Number of devices supported by this driver |
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75 | */ |
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76 | #ifndef NSONIC |
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77 | # define NSONIC 1 |
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78 | #endif |
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79 | |
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80 | /* |
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81 | * |
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82 | * As suggested by National Application Note 746, make the |
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83 | * receive resource area bigger than the receive descriptor area. |
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84 | * |
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85 | * NOTE: Changing this may break this driver since it currently |
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86 | * assumes a 1<->1 mapping. |
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87 | */ |
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88 | #define RRA_EXTRA_COUNT 0 |
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89 | |
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90 | /* |
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91 | * RTEMS event used by interrupt handler to signal daemons. |
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92 | */ |
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93 | #define INTERRUPT_EVENT RTEMS_EVENT_1 |
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94 | |
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95 | /* |
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96 | * RTEMS event used to start transmit daemon. |
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97 | * This must not be the same as INTERRUPT_EVENT. |
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98 | */ |
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99 | #define START_TRANSMIT_EVENT RTEMS_EVENT_2 |
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100 | |
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101 | /* |
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102 | * Largest Ethernet frame. |
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103 | */ |
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104 | #define MAXIMUM_FRAME_SIZE 1518 |
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105 | |
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106 | /* |
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107 | * Receive buffer size. |
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108 | * Allow for a pointer, plus a full ethernet frame (including Frame |
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109 | * Check Sequence) rounded up to a 4-byte boundary. |
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110 | */ |
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111 | #define RBUF_SIZE ((sizeof (void *) + (MAXIMUM_FRAME_SIZE) + 3) & ~3) |
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112 | /* #define RBUF_WC ((((MAXIMUM_FRAME_SIZE) + 3) & ~3) / 2) */ |
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113 | #define RBUF_WC (RBUF_SIZE / 2) |
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114 | |
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115 | /* |
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116 | * Macros for manipulating 32-bit pointers as 16-bit fragments |
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117 | */ |
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118 | #define LSW(p) ((rtems_unsigned16)((rtems_unsigned32)(p))) |
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119 | #define MSW(p) ((rtems_unsigned16)((rtems_unsigned32)(p) >> 16)) |
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120 | #define PTR(m,l) ((void*)(((rtems_unsigned16)(m)<<16)|(rtems_unsigned16)(l))) |
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121 | |
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122 | /* |
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123 | * Hardware-specific storage |
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124 | */ |
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125 | struct sonic_softc { |
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126 | /* |
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127 | * Connection to networking code |
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128 | * This entry *must* be the first in the sonic_softc structure. |
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129 | */ |
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130 | struct arpcom arpcom; |
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131 | |
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132 | /* |
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133 | * Default location of device registers |
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134 | * ===CACHE=== |
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135 | * This area must be non-cacheable, guarded. |
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136 | */ |
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137 | void *sonic; |
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138 | |
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139 | /* |
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140 | * Register access routines |
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141 | */ |
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142 | sonic_write_register_t write_register; |
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143 | sonic_read_register_t read_register; |
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144 | |
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145 | /* |
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146 | * Interrupt vector |
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147 | */ |
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148 | rtems_vector_number vector; |
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149 | |
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150 | /* |
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151 | * Data Configuration Register values |
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152 | */ |
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153 | rtems_unsigned32 dcr_value; |
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154 | rtems_unsigned32 dc2_value; |
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155 | |
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156 | /* |
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157 | * Indicates configuration |
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158 | */ |
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159 | int acceptBroadcast; |
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160 | |
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161 | /* |
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162 | * Task waiting for interrupts |
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163 | */ |
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164 | rtems_id rxDaemonTid; |
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165 | rtems_id txDaemonTid; |
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166 | |
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167 | /* |
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168 | * Receive resource area |
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169 | */ |
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170 | int rdaCount; |
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171 | ReceiveResourcePointer_t rsa; |
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172 | ReceiveResourcePointer_t rea; |
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173 | CamDescriptorPointer_t cdp; |
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174 | ReceiveDescriptorPointer_t rda; |
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175 | ReceiveDescriptorPointer_t rdp_last; |
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176 | |
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177 | /* |
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178 | * Transmit descriptors |
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179 | */ |
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180 | int tdaCount; |
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181 | TransmitDescriptorPointer_t tdaHead; /* Last filled */ |
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182 | TransmitDescriptorPointer_t tdaTail; /* Next to retire */ |
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183 | |
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184 | /* |
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185 | * Statistics |
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186 | */ |
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187 | unsigned long Interrupts; |
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188 | unsigned long rxInterrupts; |
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189 | unsigned long rxMissed; |
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190 | unsigned long rxGiant; |
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191 | unsigned long rxNonOctet; |
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192 | unsigned long rxBadCRC; |
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193 | unsigned long rxCollision; |
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194 | |
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195 | unsigned long txInterrupts; |
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196 | unsigned long txSingleCollision; |
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197 | unsigned long txMultipleCollision; |
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198 | unsigned long txCollision; |
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199 | unsigned long txDeferred; |
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200 | unsigned long txUnderrun; |
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201 | unsigned long txLateCollision; |
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202 | unsigned long txExcessiveCollision; |
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203 | unsigned long txExcessiveDeferral; |
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204 | unsigned long txLostCarrier; |
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205 | unsigned long txRawWait; |
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206 | }; |
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207 | SONIC_STATIC struct sonic_softc sonic_softc[NSONIC]; |
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208 | |
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209 | |
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210 | /* |
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211 | ****************************************************************** |
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212 | * * |
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213 | * Debug Routines * |
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214 | * * |
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215 | ****************************************************************** |
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216 | */ |
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217 | |
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218 | #if (SONIC_DEBUG & SONIC_DEBUG_MEMORY_DESCRIPTORS) |
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219 | void sonic_print_tx_descriptor( |
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220 | TransmitDescriptorPointer_t tdp |
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221 | ) |
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222 | { |
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223 | printf( "TXD ==> %p", tdp ); |
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224 | printf( " pkt_config = 0x%04x", tdp->pkt_config & 0xffff); |
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225 | printf( " pkt_size = 0x%04x\n", tdp->pkt_size & 0xffff ); |
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226 | printf( " frag_count = %d", tdp->frag_count & 0xffff ); |
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227 | /* could print all the fragments */ |
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228 | printf( " next = %p", tdp->next ); |
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229 | printf( " linkp = %p\n", tdp->linkp ); |
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230 | printf( " mbufp = %p", tdp->mbufp ); |
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231 | if ( tdp->mbufp ) |
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232 | printf( " mbufp->data = %p", mtod ( tdp->mbufp, void *) ); |
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233 | puts(""); |
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234 | } |
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235 | |
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236 | void sonic_print_rx_descriptor( |
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237 | ReceiveDescriptorPointer_t rdp |
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238 | ) |
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239 | { |
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240 | printf( "RXD ==> %p\n", rdp ); |
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241 | printf( " status = 0x%04x", rdp->status & 0xffff ); |
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242 | printf( " byte_count = 0x%04x\n", rdp->byte_count & 0xffff ); |
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243 | printf( " pkt = 0x%04x%04x", rdp->pkt_msw, rdp->pkt_lsw ); |
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244 | printf( " seq_no = %d", rdp->seq_no ); |
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245 | printf( " link = %d\n", rdp->link ); |
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246 | printf( " in_use = %d", rdp->in_use ); |
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247 | printf( " next = %p", rdp->next ); |
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248 | printf( " mbufp = %p", rdp->mbufp ); |
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249 | if ( rdp->mbufp ) |
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250 | printf( " mbufp->data = %p", mtod ( rdp->mbufp, void *) ); |
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251 | puts(""); |
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252 | } |
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253 | #endif |
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254 | |
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255 | /* |
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256 | ****************************************************************** |
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257 | * * |
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258 | * Support Routines * |
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259 | * * |
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260 | ****************************************************************** |
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261 | */ |
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262 | |
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263 | void sonic_enable_interrupts( |
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264 | struct sonic_softc *sc, |
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265 | unsigned32 mask |
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266 | ) |
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267 | { |
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268 | void *rp = sc->sonic; |
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269 | rtems_interrupt_level level; |
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270 | |
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271 | rtems_interrupt_disable( level ); |
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272 | (*sc->write_register)( |
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273 | rp, |
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274 | SONIC_REG_IMR, |
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275 | (*sc->read_register)(rp, SONIC_REG_IMR) | mask |
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276 | ); |
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277 | rtems_interrupt_enable( level ); |
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278 | } |
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279 | |
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280 | void sonic_disable_interrupts( |
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281 | struct sonic_softc *sc, |
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282 | unsigned32 mask |
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283 | ) |
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284 | { |
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285 | void *rp = sc->sonic; |
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286 | rtems_interrupt_level level; |
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287 | |
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288 | rtems_interrupt_disable( level ); |
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289 | (*sc->write_register)( |
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290 | rp, |
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291 | SONIC_REG_IMR, |
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292 | (*sc->read_register)(rp, SONIC_REG_IMR) & ~mask |
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293 | ); |
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294 | rtems_interrupt_enable( level ); |
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295 | } |
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296 | |
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297 | void sonic_clear_interrupts( |
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298 | struct sonic_softc *sc, |
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299 | unsigned32 mask |
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300 | ) |
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301 | { |
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302 | void *rp = sc->sonic; |
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303 | rtems_interrupt_level level; |
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304 | |
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305 | rtems_interrupt_disable( level ); |
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306 | (*sc->write_register)( rp, SONIC_REG_ISR, mask); |
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307 | rtems_interrupt_enable( level ); |
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308 | } |
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309 | |
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310 | void sonic_command( |
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311 | struct sonic_softc *sc, |
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312 | unsigned32 mask |
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313 | ) |
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314 | { |
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315 | void *rp = sc->sonic; |
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316 | rtems_interrupt_level level; |
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317 | |
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318 | rtems_interrupt_disable( level ); |
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319 | (*sc->write_register)( rp, SONIC_REG_CR, mask); |
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320 | rtems_interrupt_enable( level ); |
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321 | } |
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322 | |
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323 | /* |
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324 | * Allocate non-cacheable memory on a single 64k page. |
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325 | * Very simple minded -- just keeps trying till the memory is on a single page. |
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326 | */ |
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327 | SONIC_STATIC void * sonic_allocate(unsigned int nbytes) |
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328 | { |
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329 | void *p; |
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330 | unsigned long a1, a2; |
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331 | |
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332 | for (;;) { |
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333 | /* |
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334 | * ===CACHE=== |
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335 | * Change malloc to malloc_noncacheable_guarded. |
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336 | */ |
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337 | p = malloc( nbytes, M_MBUF, M_NOWAIT ); |
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338 | if (p == NULL) |
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339 | rtems_panic ("No memory!"); |
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340 | memset (p, '\0', nbytes); |
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341 | a1 = (unsigned long)p; |
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342 | a2 = a1 + nbytes - 1; |
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343 | if ((a1 >> 16) == (a2 >> 16)) |
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344 | break; |
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345 | } |
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346 | #if (SONIC_DEBUG & SONIC_DEBUG_MEMORY_ALLOCATE) |
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347 | printf( "sonic_allocate %d bytes at %p\n", nbytes, p ); |
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348 | #endif |
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349 | return p; |
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350 | } |
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351 | |
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352 | /* |
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353 | * Shut down the interface. |
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354 | */ |
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355 | |
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356 | SONIC_STATIC void sonic_stop (struct sonic_softc *sc) |
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357 | { |
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358 | struct ifnet *ifp = &sc->arpcom.ac_if; |
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359 | |
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360 | ifp->if_flags &= ~IFF_RUNNING; |
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361 | |
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362 | /* |
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363 | * Stop the transmitter and receiver. |
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364 | */ |
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365 | sonic_command(sc, CR_HTX | CR_RXDIS ); |
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366 | } |
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367 | |
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368 | /* |
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369 | * Show interface statistics |
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370 | */ |
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371 | SONIC_STATIC void sonic_stats (struct sonic_softc *sc) |
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372 | { |
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373 | printf (" Total Interrupts:%-8lu", sc->Interrupts); |
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374 | printf (" Rx Interrupts:%-8lu", sc->rxInterrupts); |
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375 | printf (" Giant:%-8lu", sc->rxGiant); |
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376 | printf (" Non-octet:%-8lu\n", sc->rxNonOctet); |
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377 | printf (" Bad CRC:%-8lu", sc->rxBadCRC); |
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378 | printf (" Collision:%-8lu", sc->rxCollision); |
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379 | printf (" Missed:%-8lu\n", sc->rxMissed); |
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380 | |
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381 | printf ( " Tx Interrupts:%-8lu", sc->txInterrupts); |
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382 | printf ( " Deferred:%-8lu", sc->txDeferred); |
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383 | printf (" Lost Carrier:%-8lu\n", sc->txLostCarrier); |
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384 | printf ( "Single Collisions:%-8lu", sc->txSingleCollision); |
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385 | printf ( "Multiple Collisions:%-8lu", sc->txMultipleCollision); |
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386 | printf ("Excessive Collisions:%-8lu\n", sc->txExcessiveCollision); |
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387 | printf ( " Total Collisions:%-8lu", sc->txCollision); |
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388 | printf ( " Late Collision:%-8lu", sc->txLateCollision); |
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389 | printf (" Underrun:%-8lu\n", sc->txUnderrun); |
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390 | printf ( " Raw output wait:%-8lu\n", sc->txRawWait); |
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391 | } |
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392 | |
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393 | /* |
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394 | ****************************************************************** |
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395 | * * |
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396 | * Interrupt Handler * |
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397 | * * |
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398 | ****************************************************************** |
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399 | */ |
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400 | |
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401 | SONIC_STATIC rtems_isr sonic_interrupt_handler (rtems_vector_number v) |
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402 | { |
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403 | struct sonic_softc *sc = sonic_softc; |
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404 | unsigned32 isr, imr; |
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405 | void *rp; |
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406 | |
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407 | #if (NSONIC > 1) |
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408 | /* |
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409 | * Find the device which requires service |
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410 | */ |
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411 | for (;;) { |
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412 | if (sc->vector == v) |
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413 | break; |
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414 | if (++sc == &sonic[NSONIC]) |
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415 | return; /* Spurious interrupt? */ |
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416 | } |
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417 | #endif /* NSONIC > 1 */ |
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418 | |
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419 | /* |
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420 | * Get pointer to SONIC registers |
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421 | */ |
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422 | rp = sc->sonic; |
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423 | |
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424 | sc->Interrupts++; |
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425 | |
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426 | isr = (*sc->read_register)( rp, SONIC_REG_ISR ); |
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427 | imr = (*sc->read_register)( rp, SONIC_REG_IMR ); |
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428 | |
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429 | /* |
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430 | * Packet received or receive buffer area exceeded? |
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431 | */ |
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432 | if (imr & isr & (IMR_PRXEN | IMR_RBAEEN)) { |
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433 | imr &= ~(IMR_PRXEN | IMR_RBAEEN); |
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434 | sc->rxInterrupts++; |
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435 | rtems_event_send (sc->rxDaemonTid, INTERRUPT_EVENT); |
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436 | (*sc->write_register)( rp, SONIC_REG_IMR, imr ); |
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437 | (*sc->write_register)( rp, SONIC_REG_ISR, isr & ISR_PKTRX ); |
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438 | } |
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439 | |
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440 | /* |
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441 | * Packet started, transmitter done or transmitter error? |
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442 | * TX interrupts only occur after an error or when all TDA's are |
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443 | * exhausted and we are waiting for buffer to come free. |
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444 | */ |
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445 | if (imr & isr & (IMR_PINTEN | IMR_TXEREN)) { |
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446 | sc->txInterrupts++; |
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447 | rtems_event_send (sc->txDaemonTid, INTERRUPT_EVENT); |
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448 | (*sc->write_register)( rp, SONIC_REG_ISR, ISR_PINT | ISR_TXDN | ISR_TXER ); |
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449 | } |
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450 | |
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451 | } |
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452 | |
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453 | /* |
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454 | ****************************************************************** |
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455 | * * |
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456 | * Transmitter Routines * |
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457 | * * |
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458 | ****************************************************************** |
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459 | */ |
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460 | |
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461 | /* |
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462 | * Soak up transmit descriptors that have been sent. |
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463 | */ |
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464 | |
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465 | SONIC_STATIC void sonic_retire_tda (struct sonic_softc *sc) |
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466 | { |
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467 | rtems_unsigned16 status; |
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468 | unsigned int collisions; |
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469 | struct mbuf *m, *n; |
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470 | |
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471 | /* |
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472 | * Repeat for all completed transmit descriptors. |
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473 | */ |
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474 | while ((status = sc->tdaTail->status) != 0) { |
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475 | |
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476 | #if (SONIC_DEBUG & SONIC_DEBUG_DESCRIPTORS) |
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477 | printf( "retire TDA %p (0x%04x)\n", sc->tdaTail, status ); |
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478 | #endif |
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479 | |
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480 | #if (SONIC_DEBUG & SONIC_DEBUG_ERRORS) |
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481 | /* |
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482 | * If there is an error that was not a collision, |
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483 | * then someone may want to see it. |
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484 | */ |
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485 | |
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486 | if ( (status & ~(TDA_STATUS_COLLISION_MASK|TDA_STATUS_DEF)) != 0x0001 ) |
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487 | printf( "ERROR: retire TDA %p (0x%08x)\n", |
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488 | sc->tdaTail, sc->tdaTail->status ); |
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489 | #endif |
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490 | |
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491 | /* |
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492 | * Check for errors which stop the transmitter. |
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493 | */ |
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494 | if (status & (TDA_STATUS_EXD | |
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495 | TDA_STATUS_EXC | |
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496 | TDA_STATUS_FU | |
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497 | TDA_STATUS_BCM)) { |
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498 | /* |
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499 | * Restart the transmitter if there are |
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500 | * packets waiting to go. |
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501 | */ |
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502 | rtems_unsigned16 link; |
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503 | #if (SONIC_DEBUG & SONIC_DEBUG_ERRORS) |
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504 | printf("restarting sonic after error\n"); |
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505 | #endif |
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506 | |
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507 | link = *(sc->tdaTail->linkp); |
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508 | |
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509 | if ((link & TDA_LINK_EOL) == 0) { |
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510 | void *rp = sc->sonic; |
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511 | |
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512 | (*sc->write_register)( rp, SONIC_REG_CTDA, link ); |
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513 | sonic_command(sc, CR_TXP ); |
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514 | } |
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515 | } |
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516 | |
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517 | /* |
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518 | * Update network statistics |
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519 | */ |
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520 | collisions = (status & TDA_STATUS_COLLISION_MASK) >> TDA_STATUS_COLLISION_SHIFT; |
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521 | if (collisions) { |
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522 | if (collisions == 1) |
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523 | sc->txSingleCollision++; |
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524 | else |
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525 | sc->txMultipleCollision++; |
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526 | sc->txCollision += collisions; |
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527 | } |
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528 | if (status & TDA_STATUS_EXC) |
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529 | sc->txExcessiveCollision++; |
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530 | if (status & TDA_STATUS_OWC) |
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531 | sc->txLateCollision++; |
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532 | if (status & TDA_STATUS_EXD) |
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533 | sc->txExcessiveDeferral++; |
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534 | if (status & TDA_STATUS_DEF) |
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535 | sc->txDeferred++; |
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536 | if (status & TDA_STATUS_FU) |
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537 | sc->txUnderrun++; |
---|
538 | if (status & TDA_STATUS_CRSL) |
---|
539 | sc->txLostCarrier++; |
---|
540 | |
---|
541 | /* |
---|
542 | * Free the packet and reset a couple of fields |
---|
543 | */ |
---|
544 | m = sc->tdaTail->mbufp; |
---|
545 | while ( m ) { |
---|
546 | MFREE(m, n); |
---|
547 | m = n; |
---|
548 | } |
---|
549 | |
---|
550 | /* |
---|
551 | sc->tdaTail->frag[0].frag_link = LSW(sc->tdaTail->link_pad); |
---|
552 | sc->tdaTail->frag_count = 0; |
---|
553 | */ |
---|
554 | sc->tdaTail->status = 0; |
---|
555 | |
---|
556 | /* |
---|
557 | * Move to the next transmit descriptor |
---|
558 | */ |
---|
559 | sc->tdaTail = sc->tdaTail->next; |
---|
560 | #if (SONIC_DEBUG & SONIC_DEBUG_DESCRIPTORS) |
---|
561 | printf( "next TDA %p\n", sc->tdaTail ); |
---|
562 | #endif |
---|
563 | } |
---|
564 | } |
---|
565 | |
---|
566 | /* |
---|
567 | * Send packet |
---|
568 | */ |
---|
569 | SONIC_STATIC void sonic_sendpacket (struct ifnet *ifp, struct mbuf *m) |
---|
570 | { |
---|
571 | struct sonic_softc *sc = ifp->if_softc; |
---|
572 | struct mbuf *l = NULL; |
---|
573 | TransmitDescriptorPointer_t tdp; |
---|
574 | volatile struct TransmitDescriptorFragLink *fp; |
---|
575 | unsigned int packetSize; |
---|
576 | int i; |
---|
577 | rtems_event_set events; |
---|
578 | static char padBuf[64]; |
---|
579 | |
---|
580 | /* printf( "sonic_sendpacket %p\n", m ); */ |
---|
581 | |
---|
582 | |
---|
583 | /* |
---|
584 | * Wait for transmit descriptor to become available. Only retire TDA's |
---|
585 | * if there are no more free buffers to minimize TX latency. Retire TDA'a |
---|
586 | * on the way out. |
---|
587 | */ |
---|
588 | |
---|
589 | while (sc->tdaHead->next->status != 0) { |
---|
590 | |
---|
591 | /* |
---|
592 | * Free up transmit descriptors |
---|
593 | */ |
---|
594 | sonic_retire_tda (sc); |
---|
595 | |
---|
596 | if (sc->tdaHead->next->status == 0) |
---|
597 | break; |
---|
598 | |
---|
599 | #if (SONIC_DEBUG & SONIC_DEBUG_ERRORS) |
---|
600 | printf("blocking until TDAs are available\n"); |
---|
601 | #endif |
---|
602 | /* |
---|
603 | * Enable PINT interrupts. |
---|
604 | sonic_clear_interrupts( sc, ISR_PINT ); |
---|
605 | sonic_enable_interrupts( sc, IMR_PINTEN ); |
---|
606 | */ |
---|
607 | |
---|
608 | /* |
---|
609 | * Wait for PINT TX interrupt. Every fourth TX buffer will raise PINT. |
---|
610 | */ |
---|
611 | rtems_bsdnet_event_receive (INTERRUPT_EVENT, |
---|
612 | RTEMS_WAIT|RTEMS_EVENT_ANY, |
---|
613 | RTEMS_NO_TIMEOUT, |
---|
614 | &events); |
---|
615 | sonic_disable_interrupts( sc, IMR_PINTEN ); |
---|
616 | sonic_retire_tda (sc); |
---|
617 | } |
---|
618 | |
---|
619 | /* |
---|
620 | * Fill in the transmit descriptor fragment descriptors. |
---|
621 | * ===CACHE=== |
---|
622 | * If data cache is operating in write-back mode, flush cached |
---|
623 | * data to memory. |
---|
624 | */ |
---|
625 | tdp = sc->tdaHead->next; |
---|
626 | tdp->mbufp = m; |
---|
627 | packetSize = 0; |
---|
628 | fp = tdp->frag; |
---|
629 | for (i = 0 ; i < MAXIMUM_FRAGS_PER_DESCRIPTOR ; i++, fp++) { |
---|
630 | /* |
---|
631 | * Throw away empty mbufs |
---|
632 | */ |
---|
633 | if (m->m_len) { |
---|
634 | void *p = mtod (m, void *); |
---|
635 | fp->frag_lsw = LSW(p); |
---|
636 | fp->frag_msw = MSW(p); |
---|
637 | fp->frag_size = m->m_len; |
---|
638 | packetSize += m->m_len; |
---|
639 | #if (SONIC_DEBUG & SONIC_DEBUG_FRAGMENTS) |
---|
640 | printf( "fp %p 0x%04x%04x %d=%d .. %d\n", |
---|
641 | fp, fp->frag_msw, fp->frag_lsw, fp->frag_size, m->m_len, packetSize ); |
---|
642 | #endif |
---|
643 | #if (SONIC_DEBUG & SONIC_DEBUG_DUMP_TX_MBUFS) |
---|
644 | Dump_Buffer( |
---|
645 | p, |
---|
646 | (fp->frag_size > MAXIMUM_FRAME_SIZE) ? MAXIMUM_FRAME_SIZE : fp->frag_size |
---|
647 | ); |
---|
648 | #endif |
---|
649 | l = m; |
---|
650 | m = m->m_next; |
---|
651 | } |
---|
652 | else { |
---|
653 | struct mbuf *n; |
---|
654 | MFREE (m, n); |
---|
655 | m = n; |
---|
656 | if (l != NULL) |
---|
657 | l->m_next = m; |
---|
658 | } |
---|
659 | /* |
---|
660 | * Break out of the loop if this mbuf is the last in the frame. |
---|
661 | */ |
---|
662 | if (m == NULL) |
---|
663 | break; |
---|
664 | } |
---|
665 | |
---|
666 | /* |
---|
667 | * Pad short packets. |
---|
668 | */ |
---|
669 | if ((packetSize < 64) && (i < MAXIMUM_FRAGS_PER_DESCRIPTOR)) { |
---|
670 | int padSize = 64 - packetSize; |
---|
671 | fp++; |
---|
672 | fp->frag_lsw = LSW(padBuf); |
---|
673 | fp->frag_msw = MSW(padBuf); |
---|
674 | fp->frag_size = padSize; |
---|
675 | #if (SONIC_DEBUG & SONIC_DEBUG_FRAGMENTS) |
---|
676 | printf( "PAD fp %p 0x%04x%04x %d\n", |
---|
677 | fp, fp->frag_msw, fp->frag_lsw, fp->frag_size ); |
---|
678 | #endif |
---|
679 | packetSize += padSize; |
---|
680 | i++; |
---|
681 | } |
---|
682 | |
---|
683 | /* |
---|
684 | * Fill Transmit Descriptor |
---|
685 | */ |
---|
686 | tdp->pkt_size = packetSize; |
---|
687 | tdp->frag_count = i + 1; |
---|
688 | tdp->status = 0; |
---|
689 | |
---|
690 | /* |
---|
691 | * Chain onto list and start transmission. |
---|
692 | */ |
---|
693 | |
---|
694 | tdp->linkp = &(fp+1)->frag_link; |
---|
695 | *tdp->linkp = LSW(tdp->next) | TDA_LINK_EOL; |
---|
696 | if ( sc->tdaHead->frag_count ) |
---|
697 | *sc->tdaHead->linkp &= ~TDA_LINK_EOL; |
---|
698 | sc->tdaHead = tdp; |
---|
699 | |
---|
700 | /* Start transmission */ |
---|
701 | |
---|
702 | sonic_command(sc, CR_TXP ); |
---|
703 | |
---|
704 | /* |
---|
705 | * Free up transmit descriptors on the way out. |
---|
706 | */ |
---|
707 | sonic_retire_tda (sc); |
---|
708 | } |
---|
709 | |
---|
710 | /* |
---|
711 | * Driver transmit daemon |
---|
712 | */ |
---|
713 | SONIC_STATIC void sonic_txDaemon (void *arg) |
---|
714 | { |
---|
715 | struct sonic_softc *sc = (struct sonic_softc *)arg; |
---|
716 | struct ifnet *ifp = &sc->arpcom.ac_if; |
---|
717 | struct mbuf *m; |
---|
718 | rtems_event_set events; |
---|
719 | |
---|
720 | for (;;) { |
---|
721 | /* |
---|
722 | * Wait for packet |
---|
723 | */ |
---|
724 | rtems_bsdnet_event_receive ( |
---|
725 | START_TRANSMIT_EVENT, |
---|
726 | RTEMS_EVENT_ANY | RTEMS_WAIT, |
---|
727 | RTEMS_NO_TIMEOUT, |
---|
728 | &events |
---|
729 | ); |
---|
730 | |
---|
731 | /* |
---|
732 | * Send packets till queue is empty |
---|
733 | */ |
---|
734 | for (;;) { |
---|
735 | /* |
---|
736 | * Get the next mbuf chain to transmit. |
---|
737 | */ |
---|
738 | IF_DEQUEUE(&ifp->if_snd, m); |
---|
739 | if (!m) |
---|
740 | break; |
---|
741 | sonic_sendpacket (ifp, m); |
---|
742 | } |
---|
743 | ifp->if_flags &= ~IFF_OACTIVE; |
---|
744 | } |
---|
745 | } |
---|
746 | |
---|
747 | /* |
---|
748 | ****************************************************************** |
---|
749 | * * |
---|
750 | * Receiver Routines * |
---|
751 | * * |
---|
752 | ****************************************************************** |
---|
753 | */ |
---|
754 | |
---|
755 | /* |
---|
756 | * Wait for SONIC to hand over a Receive Descriptor. |
---|
757 | */ |
---|
758 | |
---|
759 | SONIC_STATIC void sonic_rda_wait( |
---|
760 | struct sonic_softc *sc, |
---|
761 | ReceiveDescriptorPointer_t rdp |
---|
762 | ) |
---|
763 | { |
---|
764 | int i; |
---|
765 | void *rp = sc->sonic; |
---|
766 | rtems_event_set events; |
---|
767 | |
---|
768 | /* |
---|
769 | * Wait for Receive Descriptor. |
---|
770 | * The order of the tests is very important. |
---|
771 | * The RDA is checked after RBAE is detected. This ensures that |
---|
772 | * the driver processes all RDA entries before reusing the RRA |
---|
773 | * entry holding the giant packet. |
---|
774 | * The event wait is done after the RDA and RBAE checks. This |
---|
775 | * catches the possibility that a Receive Descriptor became ready |
---|
776 | * between the call to this function and the clearing of the |
---|
777 | * interrupt status register bit. |
---|
778 | */ |
---|
779 | for (;;) { |
---|
780 | /* |
---|
781 | * Has a giant packet arrived? |
---|
782 | * The National DP83932C data sheet is very vague on what |
---|
783 | * happens under this condition. The description of the |
---|
784 | * Interrupt Status Register (Section 4.3.6) states, |
---|
785 | * ``Reception is aborted and the SONIC fetches the next |
---|
786 | * available resource descriptors in the RRA. The buffer |
---|
787 | * space is not re-used and an RDA is not setup for the |
---|
788 | * truncated packet.'' |
---|
789 | * I take ``Reception is aborted'' to mean that the RXEN |
---|
790 | * bit in the Command Register is cleared and must be set |
---|
791 | * by the driver to begin reception again. |
---|
792 | * Unfortunately, an alternative interpretation could be |
---|
793 | * that only reception of the current packet is aborted. |
---|
794 | * This would be more difficult to recover from.... |
---|
795 | */ |
---|
796 | if ((*sc->read_register)( rp, SONIC_REG_ISR ) & ISR_RBAE) { |
---|
797 | |
---|
798 | #if (SONIC_DEBUG & SONIC_DEBUG_ERRORS) |
---|
799 | printf( "ERROR: looks like a giant packet -- RBAE\n" ); |
---|
800 | #endif |
---|
801 | |
---|
802 | /* |
---|
803 | * One more check to soak up any Receive Descriptors |
---|
804 | * that may already have been handed back to the driver. |
---|
805 | */ |
---|
806 | if (rdp->in_use == RDA_IN_USE) { |
---|
807 | #if (SONIC_DEBUG & SONIC_DEBUG_ERRORS) |
---|
808 | printf( "ERROR: nope just an RBAE\n" ); |
---|
809 | #endif |
---|
810 | break; |
---|
811 | } |
---|
812 | |
---|
813 | /* |
---|
814 | * Check my interpretation of the SONIC manual. |
---|
815 | */ |
---|
816 | if ((*sc->read_register)( rp, SONIC_REG_CR ) & CR_RXEN) |
---|
817 | rtems_panic ("SONIC RBAE/RXEN"); |
---|
818 | |
---|
819 | /* |
---|
820 | * Update statistics |
---|
821 | */ |
---|
822 | sc->rxGiant++; |
---|
823 | |
---|
824 | /* |
---|
825 | * Reuse receive buffer. |
---|
826 | * Again, the manual is subject to interpretation. The |
---|
827 | * RRP register is described as, `the lower address of |
---|
828 | * the next descriptor the SONIC will read.'' |
---|
829 | * Since, acording to the ISR/RBAE notes, the SONIC has |
---|
830 | * ``fetched the next available resource descriptor in |
---|
831 | * the RRA'', I interpret this to mean that that the |
---|
832 | * driver has to move the RRP back *two* entries to |
---|
833 | * reuse the receive buffer holding the giant packet. |
---|
834 | */ |
---|
835 | for (i = 0 ; i < 2 ; i++) { |
---|
836 | if ((*sc->read_register)( rp, SONIC_REG_RRP ) == |
---|
837 | (*sc->read_register)( rp, SONIC_REG_RSA )) |
---|
838 | (*sc->write_register)( |
---|
839 | rp, |
---|
840 | SONIC_REG_RRP, |
---|
841 | (*sc->read_register)( rp, SONIC_REG_REA ) |
---|
842 | ); |
---|
843 | (*sc->write_register)( |
---|
844 | rp, |
---|
845 | SONIC_REG_RRP, |
---|
846 | (*sc->read_register)(rp, SONIC_REG_RRP) - sizeof(ReceiveResource_t) |
---|
847 | ); |
---|
848 | } |
---|
849 | |
---|
850 | /* |
---|
851 | * Restart reception |
---|
852 | */ |
---|
853 | sonic_clear_interrupts( sc, ISR_RBAE ); |
---|
854 | sonic_command( sc, CR_RXEN ); |
---|
855 | } |
---|
856 | |
---|
857 | /* |
---|
858 | * Has Receive Descriptor become available? |
---|
859 | */ |
---|
860 | if (rdp->in_use == RDA_IN_USE) |
---|
861 | break; |
---|
862 | |
---|
863 | /* |
---|
864 | * Enable interrupts. |
---|
865 | */ |
---|
866 | sonic_enable_interrupts( sc, (IMR_PRXEN | IMR_RBAEEN) ); |
---|
867 | |
---|
868 | /* |
---|
869 | * Wait for interrupt. |
---|
870 | */ |
---|
871 | rtems_bsdnet_event_receive( |
---|
872 | INTERRUPT_EVENT, |
---|
873 | RTEMS_WAIT|RTEMS_EVENT_ANY, |
---|
874 | RTEMS_NO_TIMEOUT, |
---|
875 | &events |
---|
876 | ); |
---|
877 | } |
---|
878 | #if (SONIC_DEBUG & SONIC_DEBUG_DESCRIPTORS) |
---|
879 | printf( "RDA %p\n", rdp ); |
---|
880 | #endif |
---|
881 | |
---|
882 | #if (SONIC_DEBUG & SONIC_DEBUG_ERRORS) |
---|
883 | if (rdp->status & 0x000E) |
---|
884 | printf( "ERROR: RDA %p (0x%04x)\n", rdp, rdp->status ); |
---|
885 | #endif |
---|
886 | |
---|
887 | } |
---|
888 | |
---|
889 | #ifdef CPU_U32_FIX |
---|
890 | |
---|
891 | /* |
---|
892 | * Routine to align the received packet so that the ip header |
---|
893 | * is on a 32-bit boundary. Necessary for cpu's that do not |
---|
894 | * allow unaligned loads and stores and when the 32-bit DMA |
---|
895 | * mode is used. |
---|
896 | * |
---|
897 | * Transfers are done on word basis to avoid possibly slow byte |
---|
898 | * and half-word writes. |
---|
899 | */ |
---|
900 | |
---|
901 | void ipalign(struct mbuf *m) |
---|
902 | { |
---|
903 | unsigned int *first, *last, data; |
---|
904 | unsigned int tmp = 0; |
---|
905 | |
---|
906 | if ((((int) m->m_data) & 2) && (m->m_len)) { |
---|
907 | last = (unsigned int *) ((((int) m->m_data) + m->m_len + 8) & ~3); |
---|
908 | first = (unsigned int *) (((int) m->m_data) & ~3); |
---|
909 | tmp = *first << 16; |
---|
910 | first++; |
---|
911 | do { |
---|
912 | data = *first; |
---|
913 | *first = tmp | (data >> 16); |
---|
914 | tmp = data << 16; |
---|
915 | first++; |
---|
916 | } while (first <= last); |
---|
917 | |
---|
918 | m->m_data = (caddr_t)(((int) m->m_data) + 2); |
---|
919 | } |
---|
920 | } |
---|
921 | #endif |
---|
922 | |
---|
923 | /* |
---|
924 | * SONIC reader task |
---|
925 | */ |
---|
926 | SONIC_STATIC void sonic_rxDaemon (void *arg) |
---|
927 | { |
---|
928 | struct sonic_softc *sc = (struct sonic_softc *)arg; |
---|
929 | struct ifnet *ifp = &sc->arpcom.ac_if; |
---|
930 | void *rp = sc->sonic; |
---|
931 | struct mbuf *m; |
---|
932 | rtems_unsigned16 status; |
---|
933 | ReceiveDescriptorPointer_t rdp; |
---|
934 | ReceiveResourcePointer_t rwp, rea; |
---|
935 | rtems_unsigned16 newMissedTally, oldMissedTally; |
---|
936 | |
---|
937 | rwp = sc->rsa; |
---|
938 | rea = sc->rea; |
---|
939 | rdp = sc->rda; |
---|
940 | |
---|
941 | /* |
---|
942 | * Start the receiver |
---|
943 | */ |
---|
944 | oldMissedTally = (*sc->read_register)( rp, SONIC_REG_MPT ); |
---|
945 | |
---|
946 | /* |
---|
947 | * Input packet handling loop |
---|
948 | */ |
---|
949 | for (;;) { |
---|
950 | /* |
---|
951 | * Wait till SONIC supplies a Receive Descriptor. |
---|
952 | */ |
---|
953 | if (rdp->in_use == RDA_FREE) { |
---|
954 | sonic_rda_wait (sc, rdp); |
---|
955 | } |
---|
956 | |
---|
957 | #if (SONIC_DEBUG & SONIC_DEBUG_DESCRIPTORS) |
---|
958 | printf( "Incoming packet %p status=0x%04x\n", rdp, rdp->status ); |
---|
959 | #endif |
---|
960 | |
---|
961 | /* |
---|
962 | * Check that packet is valid |
---|
963 | */ |
---|
964 | status = rdp->status; |
---|
965 | if (status & RDA_STATUS_PRX) { |
---|
966 | struct ether_header *eh; |
---|
967 | void *p; |
---|
968 | |
---|
969 | /* |
---|
970 | * Pass the packet up the chain. |
---|
971 | * The mbuf count is reduced to remove |
---|
972 | * the frame check sequence at the end |
---|
973 | * of the packet. |
---|
974 | * ===CACHE=== |
---|
975 | * Invalidate cache entries for this memory. |
---|
976 | */ |
---|
977 | #if (SONIC_DEBUG & SONIC_DEBUG_MEMORY_DESCRIPTORS) |
---|
978 | sonic_print_rx_descriptor( rdp ); |
---|
979 | if ((LSW(rdp->mbufp->m_data) != rdp->pkt_lsw) |
---|
980 | || (MSW(rdp->mbufp->m_data) != rdp->pkt_msw)) |
---|
981 | printf ("SONIC RDA/RRA %p, %08x\n",rdp->mbufp->m_data,(rdp->pkt_msw << 16) | |
---|
982 | (rdp->pkt_lsw & 0x0ffff)); |
---|
983 | #endif |
---|
984 | rdp->byte_count &= 0x0ffff; /* ERC32 pollutes msb of byte_count */ |
---|
985 | m = rdp->mbufp; |
---|
986 | m->m_len = m->m_pkthdr.len = rdp->byte_count - |
---|
987 | sizeof(rtems_unsigned32) - |
---|
988 | sizeof(struct ether_header); |
---|
989 | eh = mtod (m, struct ether_header *); |
---|
990 | m->m_data += sizeof(struct ether_header); |
---|
991 | |
---|
992 | #ifdef CPU_U32_FIX |
---|
993 | ipalign(m); /* Align packet on 32-bit boundary */ |
---|
994 | #endif |
---|
995 | |
---|
996 | #if (SONIC_DEBUG & SONIC_DEBUG_DUMP_RX_MBUFS) |
---|
997 | Dump_Buffer( (void *) eh, sizeof(struct ether_header) ); |
---|
998 | Dump_Buffer( (void *) m, 96 /* m->m_len*/ ); |
---|
999 | #endif |
---|
1000 | |
---|
1001 | /* printf( "ether_input %p\n", m ); */ |
---|
1002 | /* |
---|
1003 | printf( "pkt %p, seq %04x, mbuf %p, m_data %p\n", rdp, rdp->seq_no, m, m->m_data ); |
---|
1004 | printf( "%u, %u\n", ((int*)m->m_data)[6], ((int*)m->m_data)[7]); |
---|
1005 | */ |
---|
1006 | ether_input (ifp, eh, m); |
---|
1007 | /* |
---|
1008 | */ |
---|
1009 | |
---|
1010 | /* |
---|
1011 | * Sanity check that Receive Resource Area is |
---|
1012 | * still in sync with Receive Descriptor Area |
---|
1013 | * The buffer reported in the Receive Descriptor |
---|
1014 | * should be the same as the buffer in the Receive |
---|
1015 | * Resource we are about to reuse. |
---|
1016 | */ |
---|
1017 | /* XXX figure out whether this is valid or not */ |
---|
1018 | #if 0 |
---|
1019 | if ((LSW(p) != rwp->buff_ptr_lsw) |
---|
1020 | || (MSW(p) != rwp->buff_ptr_msw)) |
---|
1021 | rtems_panic ("SONIC RDA/RRA"); |
---|
1022 | #endif |
---|
1023 | |
---|
1024 | /* |
---|
1025 | * Allocate a new mbuf. |
---|
1026 | */ |
---|
1027 | |
---|
1028 | MGETHDR (m, M_WAIT, MT_DATA); |
---|
1029 | MCLGET (m, M_WAIT); |
---|
1030 | m->m_pkthdr.rcvif = ifp; |
---|
1031 | rdp->mbufp = m; |
---|
1032 | p = mtod (m, void *); |
---|
1033 | |
---|
1034 | /* |
---|
1035 | * Reuse Receive Resource. |
---|
1036 | */ |
---|
1037 | |
---|
1038 | rwp->buff_ptr_lsw = LSW(p); |
---|
1039 | rwp->buff_ptr_msw = MSW(p); |
---|
1040 | rwp->buff_wc_lsw = RBUF_WC; |
---|
1041 | rwp->buff_wc_msw = 0; |
---|
1042 | rwp++; |
---|
1043 | |
---|
1044 | if (rwp == rea) { |
---|
1045 | #if (SONIC_DEBUG & SONIC_DEBUG_MEMORY) |
---|
1046 | printf( "Wrapping RWP from %p to %p\n", rwp, sc->rsa ); |
---|
1047 | #endif |
---|
1048 | rwp = sc->rsa; |
---|
1049 | } |
---|
1050 | (*sc->write_register)( rp, SONIC_REG_RWP , LSW(rwp) ); |
---|
1051 | |
---|
1052 | /* |
---|
1053 | * Tell the SONIC to reread the RRA. |
---|
1054 | */ |
---|
1055 | if ((*sc->read_register)( rp, SONIC_REG_ISR ) & ISR_RBE) |
---|
1056 | sonic_clear_interrupts( sc, ISR_RBE ); |
---|
1057 | } |
---|
1058 | else { |
---|
1059 | if (status & RDA_STATUS_COL) |
---|
1060 | sc->rxCollision++; |
---|
1061 | if (status & RDA_STATUS_FAER) |
---|
1062 | sc->rxNonOctet++; |
---|
1063 | else if (status & RDA_STATUS_CRCR) |
---|
1064 | sc->rxBadCRC++; |
---|
1065 | } |
---|
1066 | |
---|
1067 | /* |
---|
1068 | * Count missed packets |
---|
1069 | */ |
---|
1070 | newMissedTally = (*sc->read_register)( rp, SONIC_REG_MPT ); |
---|
1071 | if (newMissedTally != oldMissedTally) { |
---|
1072 | sc->rxMissed += (newMissedTally - oldMissedTally) & 0xFFFF; |
---|
1073 | newMissedTally = oldMissedTally; |
---|
1074 | } |
---|
1075 | |
---|
1076 | /* |
---|
1077 | * Move to next receive descriptor and update EOL |
---|
1078 | */ |
---|
1079 | |
---|
1080 | rdp->link |= RDA_LINK_EOL; |
---|
1081 | rdp->in_use = RDA_FREE; |
---|
1082 | sc->rdp_last->link &= ~RDA_LINK_EOL; |
---|
1083 | sc->rdp_last = rdp; |
---|
1084 | rdp = rdp->next; |
---|
1085 | |
---|
1086 | } |
---|
1087 | } |
---|
1088 | |
---|
1089 | /* |
---|
1090 | ****************************************************************** |
---|
1091 | * * |
---|
1092 | * Initialization Routines * |
---|
1093 | * * |
---|
1094 | ****************************************************************** |
---|
1095 | */ |
---|
1096 | |
---|
1097 | /* |
---|
1098 | * Initialize the SONIC hardware |
---|
1099 | */ |
---|
1100 | SONIC_STATIC void sonic_initialize_hardware(struct sonic_softc *sc) |
---|
1101 | { |
---|
1102 | void *rp = sc->sonic; |
---|
1103 | int i; |
---|
1104 | unsigned char *hwaddr; |
---|
1105 | rtems_isr_entry old_handler; |
---|
1106 | TransmitDescriptorPointer_t tdp; |
---|
1107 | ReceiveDescriptorPointer_t ordp, rdp; |
---|
1108 | ReceiveResourcePointer_t rwp; |
---|
1109 | struct mbuf *m; |
---|
1110 | void *p; |
---|
1111 | CamDescriptorPointer_t cdp; |
---|
1112 | |
---|
1113 | /* |
---|
1114 | * The Revision B SONIC has a horrible bug known as the "Zero |
---|
1115 | * Length Packet bug". The initial board used to develop this |
---|
1116 | * driver had a newer revision of the SONIC so there was no reason |
---|
1117 | * to check for this. If you have the Revision B SONIC chip, then |
---|
1118 | * you need to add some code to the RX path to handle this weirdness. |
---|
1119 | */ |
---|
1120 | |
---|
1121 | if ( (*sc->read_register)( rp, SONIC_REG_SR ) <= SONIC_REVISION_B ) { |
---|
1122 | rtems_fatal_error_occurred( 0x0BADF00D ); /* don't eat this part :) */ |
---|
1123 | } |
---|
1124 | |
---|
1125 | /* |
---|
1126 | * Set up circular linked list in Transmit Descriptor Area. |
---|
1127 | * Use the PINT bit in the transmit configuration field to |
---|
1128 | * request an interrupt on every other transmitted packet. |
---|
1129 | * |
---|
1130 | * NOTE: sonic_allocate() zeroes all of the memory allocated. |
---|
1131 | */ |
---|
1132 | |
---|
1133 | sc->tdaTail = sonic_allocate(sc->tdaCount * sizeof *tdp); |
---|
1134 | #if (SONIC_DEBUG & SONIC_DEBUG_MEMORY) |
---|
1135 | printf( "tdaTail = %p\n", sc->tdaTail ); |
---|
1136 | #endif |
---|
1137 | tdp = sc->tdaTail; |
---|
1138 | for (i = 0 ; i < sc->tdaCount ; i++) { |
---|
1139 | /* |
---|
1140 | * Start off with the table of outstanding mbuf's |
---|
1141 | */ |
---|
1142 | |
---|
1143 | /* |
---|
1144 | * status, pkt_config, pkt_size, and all fragment fields |
---|
1145 | * are set to zero by sonic_allocate. |
---|
1146 | */ |
---|
1147 | |
---|
1148 | /* XXX not used by the BSD drivers |
---|
1149 | tdp->frag[0].frag_link = LSW(tdp + 1); |
---|
1150 | */ |
---|
1151 | if (i & 3) |
---|
1152 | tdp->pkt_config = TDA_CONFIG_PINT; |
---|
1153 | |
---|
1154 | tdp->status = 0; |
---|
1155 | tdp->frag_count = 0; |
---|
1156 | tdp->link_pad = LSW(tdp + 1) | TDA_LINK_EOL; |
---|
1157 | tdp->linkp = &((tdp + 1)->frag[0].frag_link); |
---|
1158 | tdp->next = (TransmitDescriptor_t *)(tdp + 1); |
---|
1159 | #if (SONIC_DEBUG & SONIC_DEBUG_MEMORY_DESCRIPTORS) |
---|
1160 | sonic_print_tx_descriptor( tdp ); |
---|
1161 | #endif |
---|
1162 | tdp++; |
---|
1163 | } |
---|
1164 | tdp--; |
---|
1165 | sc->tdaHead = tdp; |
---|
1166 | tdp->link_pad = LSW(sc->tdaTail) | TDA_LINK_EOL; |
---|
1167 | tdp->next = (TransmitDescriptor_t *)sc->tdaTail; |
---|
1168 | tdp->linkp = &sc->tdaTail->frag[0].frag_link; |
---|
1169 | |
---|
1170 | /* |
---|
1171 | * Set up circular linked list in Receive Descriptor Area. |
---|
1172 | * Leaves sc->rda pointing at the `beginning' of the list. |
---|
1173 | * |
---|
1174 | * NOTE: The RDA and CDP must have the same MSW for their addresses. |
---|
1175 | */ |
---|
1176 | |
---|
1177 | sc->rda = sonic_allocate( |
---|
1178 | (sc->rdaCount * sizeof(ReceiveDescriptor_t)) + |
---|
1179 | sizeof(CamDescriptor_t) ); |
---|
1180 | sc->cdp = (CamDescriptorPointer_t) ((unsigned char *)sc->rda + |
---|
1181 | (sc->rdaCount * sizeof(ReceiveDescriptor_t))); |
---|
1182 | #if (SONIC_DEBUG & SONIC_DEBUG_MEMORY) |
---|
1183 | printf( "rda area = %p\n", sc->rda ); |
---|
1184 | printf( "cdp area = %p\n", sc->cdp ); |
---|
1185 | #endif |
---|
1186 | |
---|
1187 | ordp = rdp = sc->rda; |
---|
1188 | for (i = 0 ; i < sc->rdaCount ; i++) { |
---|
1189 | /* |
---|
1190 | * status, byte_count, pkt_ptr0, pkt_ptr1, and seq_no are set |
---|
1191 | * to zero by sonic_allocate. |
---|
1192 | */ |
---|
1193 | rdp->link = LSW(rdp + 1); |
---|
1194 | rdp->in_use = RDA_FREE; |
---|
1195 | rdp->next = (ReceiveDescriptor_t *)(rdp + 1); |
---|
1196 | ordp = rdp; |
---|
1197 | rdp++; |
---|
1198 | } |
---|
1199 | /* |
---|
1200 | * Link the last desriptor to the 1st one and mark it as the end |
---|
1201 | * of the list. |
---|
1202 | */ |
---|
1203 | ordp->next = sc->rda; |
---|
1204 | ordp->link = LSW(sc->rda) | RDA_LINK_EOL; |
---|
1205 | sc->rdp_last = ordp; |
---|
1206 | |
---|
1207 | /* |
---|
1208 | * Allocate the receive resource area. |
---|
1209 | * In accordance with National Application Note 746, make the |
---|
1210 | * receive resource area bigger than the receive descriptor area. |
---|
1211 | * This has the useful side effect of making the receive resource |
---|
1212 | * area big enough to hold the CAM descriptor area. |
---|
1213 | */ |
---|
1214 | |
---|
1215 | sc->rsa = sonic_allocate((sc->rdaCount + RRA_EXTRA_COUNT) * sizeof *sc->rsa); |
---|
1216 | #if (SONIC_DEBUG & SONIC_DEBUG_MEMORY) |
---|
1217 | printf( "rsa area = %p\n", sc->rsa ); |
---|
1218 | #endif |
---|
1219 | |
---|
1220 | /* |
---|
1221 | * Set up list in Receive Resource Area. |
---|
1222 | * Allocate space for incoming packets. |
---|
1223 | */ |
---|
1224 | |
---|
1225 | rwp = sc->rsa; |
---|
1226 | for (i = 0 ; i < (sc->rdaCount + RRA_EXTRA_COUNT) ; i++, rwp++) { |
---|
1227 | |
---|
1228 | /* |
---|
1229 | * Allocate memory for buffer. |
---|
1230 | * Place a pointer to the mbuf at the beginning of the buffer |
---|
1231 | * so we can find the mbuf when the SONIC returns the buffer |
---|
1232 | * to the driver. |
---|
1233 | */ |
---|
1234 | |
---|
1235 | MGETHDR (m, M_WAIT, MT_DATA); |
---|
1236 | MCLGET (m, M_WAIT); |
---|
1237 | m->m_pkthdr.rcvif = &sc->arpcom.ac_if; |
---|
1238 | sc->rda[i].mbufp = m; |
---|
1239 | |
---|
1240 | p = mtod (m, void *); |
---|
1241 | |
---|
1242 | /* |
---|
1243 | * Set up RRA entry |
---|
1244 | */ |
---|
1245 | rwp->buff_ptr_lsw = LSW(p); |
---|
1246 | rwp->buff_ptr_msw = MSW(p); |
---|
1247 | rwp->buff_wc_lsw = RBUF_WC; |
---|
1248 | rwp->buff_wc_msw = 0; |
---|
1249 | #if (SONIC_DEBUG & SONIC_DEBUG_MEMORY_DESCRIPTORS) |
---|
1250 | sonic_print_rx_descriptor( &sc->rda[i] ); |
---|
1251 | #endif |
---|
1252 | } |
---|
1253 | sc->rea = rwp; |
---|
1254 | #if (SONIC_DEBUG & SONIC_DEBUG_MEMORY) |
---|
1255 | printf( "rea area = %p\n", sc->rea ); |
---|
1256 | #endif |
---|
1257 | |
---|
1258 | |
---|
1259 | /* |
---|
1260 | * Issue a software reset. |
---|
1261 | */ |
---|
1262 | (*sc->write_register)( rp, SONIC_REG_CR, CR_RST | CR_STP | CR_RXDIS | CR_HTX ); |
---|
1263 | |
---|
1264 | /* |
---|
1265 | * Set up data configuration registers. |
---|
1266 | */ |
---|
1267 | (*sc->write_register)( rp, SONIC_REG_DCR, sc->dcr_value ); |
---|
1268 | (*sc->write_register)( rp, SONIC_REG_DCR2, sc->dc2_value ); |
---|
1269 | |
---|
1270 | (*sc->write_register)( rp, SONIC_REG_CR, CR_STP | CR_RXDIS | CR_HTX ); |
---|
1271 | |
---|
1272 | /* |
---|
1273 | * Mask all interrupts |
---|
1274 | */ |
---|
1275 | (*sc->write_register)( rp, SONIC_REG_IMR, 0x0 ); /* XXX was backwards */ |
---|
1276 | |
---|
1277 | /* |
---|
1278 | * Clear outstanding interrupts. |
---|
1279 | */ |
---|
1280 | (*sc->write_register)( rp, SONIC_REG_ISR, 0x7FFF ); |
---|
1281 | |
---|
1282 | /* |
---|
1283 | * Clear the tally counters |
---|
1284 | */ |
---|
1285 | |
---|
1286 | (*sc->write_register)( rp, SONIC_REG_CRCT, 0xFFFF ); |
---|
1287 | (*sc->write_register)( rp, SONIC_REG_FAET, 0xFFFF ); |
---|
1288 | (*sc->write_register)( rp, SONIC_REG_MPT, 0xFFFF ); |
---|
1289 | (*sc->write_register)( rp, SONIC_REG_RSC, 0 ); |
---|
1290 | |
---|
1291 | /* |
---|
1292 | * Set the Receiver mode |
---|
1293 | * |
---|
1294 | * Enable/disable reception of broadcast packets |
---|
1295 | */ |
---|
1296 | |
---|
1297 | if (sc->acceptBroadcast) |
---|
1298 | (*sc->write_register)( rp, SONIC_REG_RCR, RCR_BRD ); |
---|
1299 | else |
---|
1300 | (*sc->write_register)( rp, SONIC_REG_RCR, 0 ); |
---|
1301 | |
---|
1302 | /* |
---|
1303 | * Set up Resource Area pointers |
---|
1304 | */ |
---|
1305 | |
---|
1306 | (*sc->write_register)( rp, SONIC_REG_URRA, MSW(sc->rsa) ); |
---|
1307 | (*sc->write_register)( rp, SONIC_REG_RSA, LSW(sc->rsa) ); |
---|
1308 | |
---|
1309 | (*sc->write_register)( rp, SONIC_REG_REA, LSW(sc->rea) ); |
---|
1310 | |
---|
1311 | (*sc->write_register)( rp, SONIC_REG_RRP, LSW(sc->rsa) ); |
---|
1312 | (*sc->write_register)( rp, SONIC_REG_RWP, LSW(sc->rsa) ); /* XXX was rea */ |
---|
1313 | |
---|
1314 | (*sc->write_register)( rp, SONIC_REG_URDA, MSW(sc->rda) ); |
---|
1315 | (*sc->write_register)( rp, SONIC_REG_CRDA, LSW(sc->rda) ); |
---|
1316 | |
---|
1317 | (*sc->write_register)( rp, SONIC_REG_UTDA, MSW(sc->tdaTail) ); |
---|
1318 | (*sc->write_register)( rp, SONIC_REG_CTDA, LSW(sc->tdaTail) ); |
---|
1319 | |
---|
1320 | /* |
---|
1321 | * Set End Of Buffer Count register to the value recommended |
---|
1322 | * in Note 1 of Section 3.4.4.4 of the SONIC data sheet. |
---|
1323 | */ |
---|
1324 | |
---|
1325 | (*sc->write_register)( rp, SONIC_REG_EOBC, RBUF_WC - 2 ); |
---|
1326 | |
---|
1327 | /* |
---|
1328 | * Issue the load RRA command |
---|
1329 | */ |
---|
1330 | |
---|
1331 | (*sc->write_register)( rp, SONIC_REG_CR, CR_RRRA ); |
---|
1332 | while ((*sc->read_register)( rp, SONIC_REG_CR ) & CR_RRRA) |
---|
1333 | continue; |
---|
1334 | |
---|
1335 | /* |
---|
1336 | * Remove device reset |
---|
1337 | */ |
---|
1338 | |
---|
1339 | (*sc->write_register)( rp, SONIC_REG_CR, 0 ); |
---|
1340 | |
---|
1341 | /* |
---|
1342 | * Set up the SONIC CAM with our hardware address. |
---|
1343 | */ |
---|
1344 | |
---|
1345 | hwaddr = sc->arpcom.ac_enaddr; |
---|
1346 | cdp = sc->cdp; |
---|
1347 | |
---|
1348 | #if (SONIC_DEBUG & SONIC_DEBUG_CAM) |
---|
1349 | printf( "hwaddr: %2x:%2x:%2x:%2x:%2x:%2x\n", |
---|
1350 | hwaddr[0], hwaddr[1], hwaddr[2], hwaddr[3], hwaddr[4], hwaddr[5] ); |
---|
1351 | #endif |
---|
1352 | |
---|
1353 | cdp->cep = 0; /* Fill first and only entry in CAM */ |
---|
1354 | cdp->cap0 = hwaddr[1] << 8 | hwaddr[0]; |
---|
1355 | cdp->cap1 = hwaddr[3] << 8 | hwaddr[2]; |
---|
1356 | cdp->cap2 = hwaddr[5] << 8 | hwaddr[4]; |
---|
1357 | cdp->ce = 0x0001; /* Enable first entry in CAM */ |
---|
1358 | |
---|
1359 | (*sc->write_register)( rp, SONIC_REG_CDC, 1 ); /* 1 entry in CDA */ |
---|
1360 | (*sc->write_register)( rp, SONIC_REG_CDP, LSW(cdp) ); |
---|
1361 | (*sc->write_register)( rp, SONIC_REG_CR, CR_LCAM ); /* Load the CAM */ |
---|
1362 | |
---|
1363 | while ((*sc->read_register)( rp, SONIC_REG_CR ) & CR_LCAM) |
---|
1364 | continue; |
---|
1365 | |
---|
1366 | /* |
---|
1367 | * Verify that CAM was properly loaded. |
---|
1368 | */ |
---|
1369 | |
---|
1370 | (*sc->write_register)( rp, SONIC_REG_CR, CR_RST | CR_STP | CR_RXDIS | CR_HTX ); |
---|
1371 | |
---|
1372 | #if (SONIC_DEBUG & SONIC_DEBUG_CAM) |
---|
1373 | (*sc->write_register)( rp, SONIC_REG_CEP, 0 ); /* Select first entry in CAM */ |
---|
1374 | printf ("Loaded Ethernet address into SONIC CAM.\n" |
---|
1375 | " Wrote %04x%04x%04x - %#x\n" |
---|
1376 | " Read %04x%04x%04x - %#x\n", |
---|
1377 | cdp->cap2, cdp->cap1, cdp->cap0, cdp->ce, |
---|
1378 | (*sc->read_register)( rp, SONIC_REG_CAP2 ), |
---|
1379 | (*sc->read_register)( rp, SONIC_REG_CAP1 ), |
---|
1380 | (*sc->read_register)( rp, SONIC_REG_CAP0 ), |
---|
1381 | (*sc->read_register)( rp, SONIC_REG_CE )); |
---|
1382 | |
---|
1383 | (*sc->write_register)( rp, SONIC_REG_CEP, 0 ); /* Select first entry in CAM */ |
---|
1384 | if (((*sc->read_register)( rp, SONIC_REG_CAP2 ) != cdp->cap2) |
---|
1385 | || ((*sc->read_register)( rp, SONIC_REG_CAP1 ) != cdp->cap1) |
---|
1386 | || ((*sc->read_register)( rp, SONIC_REG_CAP0 ) != cdp->cap0) |
---|
1387 | || ((*sc->read_register)( rp, SONIC_REG_CE ) != cdp->ce)) { |
---|
1388 | printf ("Failed to load Ethernet address into SONIC CAM.\n" |
---|
1389 | " Wrote %04x%04x%04x - %#x\n" |
---|
1390 | " Read %04x%04x%04x - %#x\n", |
---|
1391 | cdp->cap2, cdp->cap1, cdp->cap0, cdp->ce, |
---|
1392 | (*sc->read_register)( rp, SONIC_REG_CAP2 ), |
---|
1393 | (*sc->read_register)( rp, SONIC_REG_CAP1 ), |
---|
1394 | (*sc->read_register)( rp, SONIC_REG_CAP0 ), |
---|
1395 | (*sc->read_register)( rp, SONIC_REG_CE )); |
---|
1396 | rtems_panic ("SONIC LCAM"); |
---|
1397 | } |
---|
1398 | #endif |
---|
1399 | |
---|
1400 | (*sc->write_register)(rp, SONIC_REG_CR, /* CR_TXP | */CR_RXEN | CR_STP); |
---|
1401 | |
---|
1402 | /* |
---|
1403 | * Attach SONIC interrupt handler |
---|
1404 | */ |
---|
1405 | /* XXX |
---|
1406 | (*sc->write_register)( rp, SONIC_REG_IMR, 0 ); |
---|
1407 | */ |
---|
1408 | old_handler = set_vector(sonic_interrupt_handler, sc->vector, 1); |
---|
1409 | |
---|
1410 | /* |
---|
1411 | * Remainder of hardware initialization is |
---|
1412 | * done by the receive and transmit daemons. |
---|
1413 | */ |
---|
1414 | } |
---|
1415 | |
---|
1416 | /* |
---|
1417 | * Send packet (caller provides header). |
---|
1418 | */ |
---|
1419 | |
---|
1420 | SONIC_STATIC void sonic_start(struct ifnet *ifp) |
---|
1421 | { |
---|
1422 | struct sonic_softc *sc = ifp->if_softc; |
---|
1423 | |
---|
1424 | rtems_event_send(sc->txDaemonTid, START_TRANSMIT_EVENT); |
---|
1425 | ifp->if_flags |= IFF_OACTIVE; |
---|
1426 | } |
---|
1427 | |
---|
1428 | /* |
---|
1429 | * Initialize and start the device |
---|
1430 | */ |
---|
1431 | |
---|
1432 | SONIC_STATIC void sonic_init (void *arg) |
---|
1433 | { |
---|
1434 | struct sonic_softc *sc = arg; |
---|
1435 | struct ifnet *ifp = &sc->arpcom.ac_if; |
---|
1436 | void *rp = sc->sonic; |
---|
1437 | int rcr; |
---|
1438 | |
---|
1439 | if (sc->txDaemonTid == 0) { |
---|
1440 | |
---|
1441 | /* |
---|
1442 | * Set up SONIC hardware |
---|
1443 | */ |
---|
1444 | sonic_initialize_hardware (sc); |
---|
1445 | |
---|
1446 | /* |
---|
1447 | * Start driver tasks |
---|
1448 | */ |
---|
1449 | sc->rxDaemonTid = rtems_bsdnet_newproc ("SNrx", 4096, sonic_rxDaemon, sc); |
---|
1450 | sc->txDaemonTid = rtems_bsdnet_newproc ("SNtx", 4096, sonic_txDaemon, sc); |
---|
1451 | } |
---|
1452 | |
---|
1453 | /* |
---|
1454 | * Set flags appropriately |
---|
1455 | */ |
---|
1456 | rcr = (*sc->read_register)( rp, SONIC_REG_RCR ); |
---|
1457 | if (ifp->if_flags & IFF_PROMISC) |
---|
1458 | rcr |= RCR_PRO; |
---|
1459 | else |
---|
1460 | rcr &= ~RCR_PRO; |
---|
1461 | (*sc->write_register)( rp, SONIC_REG_RCR, rcr); |
---|
1462 | |
---|
1463 | /* |
---|
1464 | * Tell the world that we're running. |
---|
1465 | */ |
---|
1466 | ifp->if_flags |= IFF_RUNNING; |
---|
1467 | |
---|
1468 | /* |
---|
1469 | * Enable receiver and transmitter |
---|
1470 | */ |
---|
1471 | sonic_enable_interrupts( sc, IMR_TXEREN | (IMR_PRXEN | IMR_RBAEEN) ); |
---|
1472 | sonic_command( sc, CR_RXEN ); |
---|
1473 | } |
---|
1474 | |
---|
1475 | /* |
---|
1476 | * Driver ioctl handler |
---|
1477 | */ |
---|
1478 | static int |
---|
1479 | sonic_ioctl (struct ifnet *ifp, int command, caddr_t data) |
---|
1480 | { |
---|
1481 | struct sonic_softc *sc = ifp->if_softc; |
---|
1482 | int error = 0; |
---|
1483 | |
---|
1484 | switch (command) { |
---|
1485 | case SIOCGIFADDR: |
---|
1486 | case SIOCSIFADDR: |
---|
1487 | ether_ioctl (ifp, command, data); |
---|
1488 | break; |
---|
1489 | |
---|
1490 | case SIOCSIFFLAGS: |
---|
1491 | switch (ifp->if_flags & (IFF_UP | IFF_RUNNING)) { |
---|
1492 | case IFF_RUNNING: |
---|
1493 | sonic_stop (sc); |
---|
1494 | break; |
---|
1495 | |
---|
1496 | case IFF_UP: |
---|
1497 | sonic_init (sc); |
---|
1498 | break; |
---|
1499 | |
---|
1500 | case IFF_UP | IFF_RUNNING: |
---|
1501 | sonic_stop (sc); |
---|
1502 | sonic_init (sc); |
---|
1503 | break; |
---|
1504 | |
---|
1505 | default: |
---|
1506 | break; |
---|
1507 | } |
---|
1508 | break; |
---|
1509 | |
---|
1510 | case SIO_RTEMS_SHOW_STATS: |
---|
1511 | sonic_stats (sc); |
---|
1512 | break; |
---|
1513 | |
---|
1514 | /* |
---|
1515 | * FIXME: All sorts of multicast commands need to be added here! |
---|
1516 | */ |
---|
1517 | default: |
---|
1518 | error = EINVAL; |
---|
1519 | break; |
---|
1520 | } |
---|
1521 | return error; |
---|
1522 | } |
---|
1523 | |
---|
1524 | /* |
---|
1525 | * Attach an SONIC driver to the system |
---|
1526 | * This is the only `extern' function in the driver. |
---|
1527 | */ |
---|
1528 | |
---|
1529 | int |
---|
1530 | rtems_sonic_driver_attach ( |
---|
1531 | struct rtems_bsdnet_ifconfig *config, |
---|
1532 | sonic_configuration_t *chip |
---|
1533 | ) |
---|
1534 | { |
---|
1535 | struct sonic_softc *sc; |
---|
1536 | struct ifnet *ifp; |
---|
1537 | int mtu; |
---|
1538 | int unitNumber; |
---|
1539 | char *unitName; |
---|
1540 | |
---|
1541 | /* |
---|
1542 | * Parse driver name |
---|
1543 | */ |
---|
1544 | if ((unitNumber = rtems_bsdnet_parse_driver_name (config, &unitName)) < 0) |
---|
1545 | return 0; |
---|
1546 | |
---|
1547 | /* |
---|
1548 | * Is driver free? |
---|
1549 | */ |
---|
1550 | if ((unitNumber <= 0) || (unitNumber > NSONIC)) { |
---|
1551 | printf ("Bad SONIC unit number.\n"); |
---|
1552 | return 0; |
---|
1553 | } |
---|
1554 | sc = &sonic_softc[unitNumber - 1]; |
---|
1555 | ifp = &sc->arpcom.ac_if; |
---|
1556 | if (ifp->if_softc != NULL) { |
---|
1557 | printf ("Driver already in use.\n"); |
---|
1558 | return 0; |
---|
1559 | } |
---|
1560 | |
---|
1561 | /* |
---|
1562 | * zero out the control structure |
---|
1563 | */ |
---|
1564 | |
---|
1565 | memset( sc, 0, sizeof(*sc) ); |
---|
1566 | |
---|
1567 | |
---|
1568 | /* |
---|
1569 | * Process options |
---|
1570 | */ |
---|
1571 | if (config->hardware_address) { |
---|
1572 | memcpy (sc->arpcom.ac_enaddr, config->hardware_address, ETHER_ADDR_LEN); |
---|
1573 | } |
---|
1574 | else { |
---|
1575 | memset (sc->arpcom.ac_enaddr, 0x08, ETHER_ADDR_LEN); |
---|
1576 | } |
---|
1577 | if (config->mtu) |
---|
1578 | mtu = config->mtu; |
---|
1579 | else |
---|
1580 | mtu = ETHERMTU; |
---|
1581 | if (config->rbuf_count) |
---|
1582 | sc->rdaCount = config->rbuf_count; |
---|
1583 | else |
---|
1584 | sc->rdaCount = chip->rda_count; |
---|
1585 | if (config->xbuf_count) |
---|
1586 | sc->tdaCount = config->xbuf_count; |
---|
1587 | else |
---|
1588 | sc->tdaCount = chip->tda_count; |
---|
1589 | sc->acceptBroadcast = !config->ignore_broadcast; |
---|
1590 | |
---|
1591 | sc->sonic = (void *) chip->base_address; |
---|
1592 | sc->vector = chip->vector; |
---|
1593 | sc->dcr_value = chip->dcr_value; |
---|
1594 | sc->dc2_value = chip->dc2_value; |
---|
1595 | sc->write_register = chip->write_register; |
---|
1596 | sc->read_register = chip->read_register; |
---|
1597 | |
---|
1598 | /* |
---|
1599 | * Set up network interface values |
---|
1600 | */ |
---|
1601 | ifp->if_softc = sc; |
---|
1602 | ifp->if_unit = unitNumber; |
---|
1603 | ifp->if_name = unitName; |
---|
1604 | ifp->if_mtu = mtu; |
---|
1605 | ifp->if_init = sonic_init; |
---|
1606 | ifp->if_ioctl = sonic_ioctl; |
---|
1607 | ifp->if_start = sonic_start; |
---|
1608 | ifp->if_output = ether_output; |
---|
1609 | ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX; |
---|
1610 | if (ifp->if_snd.ifq_maxlen == 0) |
---|
1611 | ifp->if_snd.ifq_maxlen = ifqmaxlen; |
---|
1612 | |
---|
1613 | /* |
---|
1614 | * Attach the interface |
---|
1615 | */ |
---|
1616 | if_attach (ifp); |
---|
1617 | ether_ifattach (ifp); |
---|
1618 | return 1; |
---|
1619 | } |
---|
1620 | |
---|
1621 | #if (SONIC_DEBUG & SONIC_DEBUG_PRINT_REGISTERS) |
---|
1622 | #include <stdio.h> |
---|
1623 | |
---|
1624 | char SONIC_Reg_name[64][6]= { |
---|
1625 | "CR", /* 0x00 */ |
---|
1626 | "DCR", /* 0x01 */ |
---|
1627 | "RCR", /* 0x02 */ |
---|
1628 | "TCR", /* 0x03 */ |
---|
1629 | "IMR", /* 0x04 */ |
---|
1630 | "ISR", /* 0x05 */ |
---|
1631 | "UTDA", /* 0x06 */ |
---|
1632 | "CTDA", /* 0x07 */ |
---|
1633 | "0x08", /* 0x08 */ |
---|
1634 | "0x09", /* 0x09 */ |
---|
1635 | "0x0A", /* 0x0A */ |
---|
1636 | "0x0B", /* 0x0B */ |
---|
1637 | "0x0C", /* 0x0C */ |
---|
1638 | "URDA", /* 0x0D */ |
---|
1639 | "CRDA", /* 0x0E */ |
---|
1640 | "0x0F", /* 0x0F */ |
---|
1641 | "0x10", /* 0x10 */ |
---|
1642 | "0x11", /* 0x11 */ |
---|
1643 | "0x12", /* 0x12 */ |
---|
1644 | "EOBC", /* 0x13 */ |
---|
1645 | "URRA", /* 0x14 */ |
---|
1646 | "RSA", /* 0x15 */ |
---|
1647 | "REA", /* 0x16 */ |
---|
1648 | "RRP", /* 0x17 */ |
---|
1649 | "RWP", /* 0x18 */ |
---|
1650 | "0x19", /* 0x19 */ |
---|
1651 | "0x1A", /* 0x1A */ |
---|
1652 | "0x1B", /* 0x1B */ |
---|
1653 | "0x1C", /* 0x1C */ |
---|
1654 | "0x0D", /* 0x1D */ |
---|
1655 | "0x1E", /* 0x1E */ |
---|
1656 | "0x1F", /* 0x1F */ |
---|
1657 | "0x20", /* 0x20 */ |
---|
1658 | "CEP", /* 0x21 */ |
---|
1659 | "CAP2", /* 0x22 */ |
---|
1660 | "CAP1", /* 0x23 */ |
---|
1661 | "CAP0", /* 0x24 */ |
---|
1662 | "CE", /* 0x25 */ |
---|
1663 | "CDP", /* 0x26 */ |
---|
1664 | "CDC", /* 0x27 */ |
---|
1665 | "SR", /* 0x28 */ |
---|
1666 | "WT0", /* 0x29 */ |
---|
1667 | "WT1", /* 0x2A */ |
---|
1668 | "RSC", /* 0x2B */ |
---|
1669 | "CRCT", /* 0x2C */ |
---|
1670 | "FAET", /* 0x2D */ |
---|
1671 | "MPT", /* 0x2E */ |
---|
1672 | "MDT", /* 0x2F */ |
---|
1673 | "0x30", /* 0x30 */ |
---|
1674 | "0x31", /* 0x31 */ |
---|
1675 | "0x32", /* 0x32 */ |
---|
1676 | "0x33", /* 0x33 */ |
---|
1677 | "0x34", /* 0x34 */ |
---|
1678 | "0x35", /* 0x35 */ |
---|
1679 | "0x36", /* 0x36 */ |
---|
1680 | "0x37", /* 0x37 */ |
---|
1681 | "0x38", /* 0x38 */ |
---|
1682 | "0x39", /* 0x39 */ |
---|
1683 | "0x3A", /* 0x3A */ |
---|
1684 | "0x3B", /* 0x3B */ |
---|
1685 | "0x3C", /* 0x3C */ |
---|
1686 | "0x3D", /* 0x3D */ |
---|
1687 | "0x3E", /* 0x3E */ |
---|
1688 | "DCR2" /* 0x3F */ |
---|
1689 | }; |
---|
1690 | #endif |
---|