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annotate packages/redboot/current/src/io.c @ 239:8e901b135fea

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author gthomas
date Thu, 11 Jul 2002 16:42:35 +0000
parents ee09240e2d36
children 57f3c72256bb
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1 //==========================================================================
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2 //
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3 // io.c
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4 //
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5 // RedBoot I/O support
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6 //
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7 //==========================================================================
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8 //####ECOSGPLCOPYRIGHTBEGIN####
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9 // -------------------------------------------
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10 // This file is part of eCos, the Embedded Configurable Operating System.
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11 // Copyright (C) 1998, 1999, 2000, 2001, 2002 Red Hat, Inc.
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12 // Copyright (C) 2002 Gary Thomas
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13 //
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14 // eCos is free software; you can redistribute it and/or modify it under
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15 // the terms of the GNU General Public License as published by the Free
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16 // Software Foundation; either version 2 or (at your option) any later version.
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17 //
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18 // eCos is distributed in the hope that it will be useful, but WITHOUT ANY
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19 // WARRANTY; without even the implied warranty of MERCHANTABILITY or
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20 // FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License
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21 // for more details.
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22 //
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23 // You should have received a copy of the GNU General Public License along
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24 // with eCos; if not, write to the Free Software Foundation, Inc.,
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25 // 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA.
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26 //
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27 // As a special exception, if other files instantiate templates or use macros
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28 // or inline functions from this file, or you compile this file and link it
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29 // with other works to produce a work based on this file, this file does not
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30 // by itself cause the resulting work to be covered by the GNU General Public
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31 // License. However the source code for this file must still be made available
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32 // in accordance with section (3) of the GNU General Public License.
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33 //
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34 // This exception does not invalidate any other reasons why a work based on
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35 // this file might be covered by the GNU General Public License.
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36 //
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37 // Alternative licenses for eCos may be arranged by contacting Red Hat, Inc.
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38 // at http://sources.redhat.com/ecos/ecos-license/
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39 // -------------------------------------------
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40 //####ECOSGPLCOPYRIGHTEND####
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41 //==========================================================================
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42 //#####DESCRIPTIONBEGIN####
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43 //
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44 // Author(s): gthomas
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45 // Contributors: gthomas,hmt,jlarmour
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46 // Date: 2000-07-14
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47 // Purpose:
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48 // Description:
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49 //
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50 // This code is part of RedBoot (tm).
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51 //
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52 //####DESCRIPTIONEND####
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53 //
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54 //==========================================================================
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55
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56 #include "redboot.h"
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57
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58 #ifdef CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS
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59 // GDB interface functions
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60 extern void ungetDebugChar(char c);
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61 #endif
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62
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63 static void
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64 do_channel(int argc, char *argv[]);
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65
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66 #ifdef CYGPKG_REDBOOT_ANY_CONSOLE
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67 RedBoot_cmd("channel",
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68 "Display/switch console channel",
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69 "[-1|<channel number>]",
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70 do_channel
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71 );
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72 #else
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73 RedBoot_cmd("channel",
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74 "Display/switch console channel",
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75 "[<channel number>]",
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76 do_channel
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77 );
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78 #endif
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79
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80 static void
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81 do_channel(int argc, char *argv[])
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82 {
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83 int cur = CYGACC_CALL_IF_SET_CONSOLE_COMM(CYGNUM_CALL_IF_SET_COMM_ID_QUERY_CURRENT);
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84
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85 if (argc == 2) {
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86 #ifdef CYGPKG_REDBOOT_ANY_CONSOLE
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87 if (strcmp( argv[1], "-1") == 0) {
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88 console_selected = false;
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89 console_echo = true;
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90 } else
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91 #endif
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92 {
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93 unsigned long chan;
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94 if ( !parse_num( argv[1], &chan, NULL, NULL) ) {
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95 diag_printf("** Error: invalid channel '%s'\n", argv[1]);
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96 } else {
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97 if (chan < CYGNUM_HAL_VIRTUAL_VECTOR_NUM_CHANNELS) {
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98 CYGACC_CALL_IF_SET_CONSOLE_COMM(chan);
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99 CYGACC_CALL_IF_SET_DEBUG_COMM(chan);
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100 if (chan != cur)
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101 console_echo = true;
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102 }
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103 else {
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104 diag_printf("**Error: bad channel number '%s'\n", argv[1]);
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105 }
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106 }
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107 }
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108 }
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109 /* else display */
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110 else {
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111 diag_printf("Current console channel id: ");
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112 #ifdef CYGPKG_REDBOOT_ANY_CONSOLE
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113 if (!console_selected)
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114 diag_printf("-1\n");
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115 else
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116 #endif
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117 diag_printf("%d\n", cur);
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118 }
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119 }
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120
115
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121 void
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122 mon_write_char(char c)
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123 {
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124 hal_virtual_comm_table_t *__chan;
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125
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126 #ifdef CYGPKG_REDBOOT_ANY_CONSOLE
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127 if (!console_selected) {
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128 int cur = CYGACC_CALL_IF_SET_CONSOLE_COMM(CYGNUM_CALL_IF_SET_COMM_ID_QUERY_CURRENT);
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129 int i;
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130 // Send output to all channels
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131 for (i = 0; i < CYGNUM_HAL_VIRTUAL_VECTOR_COMM_CHANNELS; i++) {
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132 CYGACC_CALL_IF_SET_CONSOLE_COMM(i);
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133 __chan = CYGACC_CALL_IF_CONSOLE_PROCS();
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134 CYGACC_COMM_IF_PUTC(*__chan, c);
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135 }
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136 CYGACC_CALL_IF_SET_CONSOLE_COMM(cur);
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137 } else
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138 #endif
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139 {
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140 __chan = CYGACC_CALL_IF_CONSOLE_PROCS();
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141 if (__chan)
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142 CYGACC_COMM_IF_PUTC(*__chan, c);
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143 else {
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144 __chan = CYGACC_CALL_IF_DEBUG_PROCS();
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145 CYGACC_COMM_IF_PUTC(*__chan, c);
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146 }
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147 }
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148 }
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149
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150 static void
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151 mon_read_char(char *c)
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152 {
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153 hal_virtual_comm_table_t* __chan = CYGACC_CALL_IF_CONSOLE_PROCS();
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154
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155 if (__chan)
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156 *c = CYGACC_COMM_IF_GETC(*__chan);
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157 else {
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158 __chan = CYGACC_CALL_IF_DEBUG_PROCS();
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159 *c = CYGACC_COMM_IF_GETC(*__chan);
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160 }
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161 }
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162
156
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163 #ifdef CYGPKG_REDBOOT_ANY_CONSOLE
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164 static int _mon_timeout;
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165 #endif
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166
115
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167 static bool
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168 mon_read_char_with_timeout(char *c)
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169 {
156
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170 bool res = false;
115
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171 hal_virtual_comm_table_t *__chan;
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172
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173 #ifdef CYGPKG_REDBOOT_ANY_CONSOLE
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174 if (!console_selected) {
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175 int cur = CYGACC_CALL_IF_SET_CONSOLE_COMM(CYGNUM_CALL_IF_SET_COMM_ID_QUERY_CURRENT);
238
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176 int i, j, tot;
115
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177 // Try input from all channels
156
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178 tot = 0;
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179 while (tot < _mon_timeout) {
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180 for (i = 0; i < CYGNUM_HAL_VIRTUAL_VECTOR_COMM_CHANNELS; i++, tot++) {
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181 CYGACC_CALL_IF_SET_CONSOLE_COMM(i);
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182 __chan = CYGACC_CALL_IF_CONSOLE_PROCS();
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183 res = CYGACC_COMM_IF_GETC_TIMEOUT(*__chan, c);
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184 if (res) {
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185 // Input available on this channel, make it be the console
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186 if (*c != '\0') {
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187 // Don't chose this unless real data have arrived
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188 console_selected = true;
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189 CYGACC_CALL_IF_SET_DEBUG_COMM(i);
238
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190 // Disable interrupts on all channels but this one
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191 for (j = 0; j < CYGNUM_HAL_VIRTUAL_VECTOR_COMM_CHANNELS; j++) {
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192 if (i != j) {
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193 CYGACC_CALL_IF_SET_CONSOLE_COMM(j);
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194 __chan = CYGACC_CALL_IF_CONSOLE_PROCS();
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195 CYGACC_COMM_IF_CONTROL(*__chan, __COMMCTL_IRQ_DISABLE);
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196 }
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197 }
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198 CYGACC_CALL_IF_SET_CONSOLE_COMM(i);
156
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199 return res;
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200 }
126
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201 }
115
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202 }
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203 }
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204 CYGACC_CALL_IF_SET_CONSOLE_COMM(cur);
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205 } else
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206 #endif
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207 {
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208 __chan = CYGACC_CALL_IF_CONSOLE_PROCS();
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209 if (__chan)
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210 res = CYGACC_COMM_IF_GETC_TIMEOUT(*__chan, c);
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211 else {
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212 __chan = CYGACC_CALL_IF_DEBUG_PROCS();
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213 res = CYGACC_COMM_IF_GETC_TIMEOUT(*__chan, c);
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214 }
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215 }
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216 return res;
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217 }
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218
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219 static void
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220 mon_set_read_char_timeout(int ms)
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221 {
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222 hal_virtual_comm_table_t *__chan;
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223
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224 #ifdef CYGPKG_REDBOOT_ANY_CONSOLE
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225 if (!console_selected) {
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226 int cur = CYGACC_CALL_IF_SET_CONSOLE_COMM(CYGNUM_CALL_IF_SET_COMM_ID_QUERY_CURRENT);
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227 int i;
156
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228 // Set timeout to minimum on each channel; total amounts to desired value
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229 _mon_timeout = ms;
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230 ms = 1;
115
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231 for (i = 0; i < CYGNUM_HAL_VIRTUAL_VECTOR_COMM_CHANNELS; i++) {
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232 CYGACC_CALL_IF_SET_CONSOLE_COMM(i);
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233 if ((__chan = CYGACC_CALL_IF_CONSOLE_PROCS()) != 0) {
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234 CYGACC_COMM_IF_CONTROL(*__chan, __COMMCTL_SET_TIMEOUT, ms);
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235 }
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236 }
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237 CYGACC_CALL_IF_SET_CONSOLE_COMM(cur);
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238 } else
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239 #endif
172
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240 {
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241 if ((__chan = CYGACC_CALL_IF_CONSOLE_PROCS()) != 0) {
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242 CYGACC_COMM_IF_CONTROL(*__chan, __COMMCTL_SET_TIMEOUT, ms);
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243 }
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244 if ((__chan = CYGACC_CALL_IF_DEBUG_PROCS()) != 0) {
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245 CYGACC_COMM_IF_CONTROL(*__chan, __COMMCTL_SET_TIMEOUT, ms);
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246 }
115
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247 }
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248 }
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249
179
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250 #ifdef CYGFUN_REDBOOT_BOOT_SCRIPT
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251 #define __STRINGIFY(x) #x
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252 #define _STRINGIFY(x) __STRINGIFY(x)
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253 #define _STARTUP_STR _STRINGIFY(CYG_HAL_STARTUP) "}"
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254
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255 //
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256 // Read a character from script.
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257 // Return true if script character found, false if not.
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258 //
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259 static int
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260 getc_script(char *cp)
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261 {
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262 static bool newline = true;
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263 bool skip;
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264
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265 while (script && *script) {
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266 if (newline && *script == '{') {
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267 skip = false;
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268 ++script;
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269
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270 // skip if it isn't for this startup type
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271 if (strncmp(script, _STARTUP_STR, strlen(_STARTUP_STR)))
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272 skip = true;
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273
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274 // skip past "{...}"
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275 while (*script && *script++ != '}')
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276 ;
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277
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278 // skip script line if neccessary
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279 if (skip) {
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280 while (*script && *script++ != '\n')
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281 ;
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282 } else
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283 newline = false;
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284
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285 } else {
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286 *cp = *script++;
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287 if (*cp == '\n')
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288 newline = true;
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289 return true;
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290 }
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291 }
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292 return false;
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293 }
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294 #endif
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295
115
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296 //
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297 // Read a line of input from the user
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298 // Return:
195
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299 // _GETS_OK: 'n' valid characters received
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300 // _GETS_GDB: '$' (GDB lead-in)
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301 // _GETS_TIMEOUT: No input before timeout
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302 // _GETS_CTRLC: ^C typed
115
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303 //
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304 int
195
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305 _rb_gets_preloaded(char *buf, int buflen, int timeout)
115
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306 {
194
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307 char *ip = buf; // Insertion point
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308 char *eol = buf; // End of line
115
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309 char c;
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310 bool res = false;
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311 static char last_ch = '\0';
196
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312 int _timeout;
194
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313 #if CYGNUM_REDBOOT_CMD_LINE_EDITING != 0
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314 //
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315 // Command line history support
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316 // ^P - Select previous line from history
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317 // ^N - Select next line from history
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318 // ^A - Move insertion [cursor] to start of line
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319 // ^E - Move cursor to end of line
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320 // ^B - Move cursor back [previous character]
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321 // ^F - Move cursor forward [next character]
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322 //
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323 #define _CL_NUM_LINES CYGNUM_REDBOOT_CMD_LINE_EDITING // Number of lines to keep
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324 static char _cl_lines[_CL_NUM_LINES][CYGPKG_REDBOOT_MAX_CMD_LINE];
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325 static int _cl_index = -1; // Last known command line
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326 static int _cl_max_index = -1; // Last command in buffers
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327 int _index = _cl_index; // Last saved line
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328 char *xp;
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329 #endif
115
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330
195
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331 // Display current buffer data
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332 while (*eol) {
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333 mon_write_char(*eol++);
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334 }
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335 ip = eol;
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336
115
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337 while (true) {
159
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338 #ifdef CYGFUN_REDBOOT_BOOT_SCRIPT
179
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339 if (getc_script(&c))
156
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340 do_idle(false);
179
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341 else
115
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342 #endif
194
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343 if ((timeout > 0) && (eol == buf)) {
191
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344 #define MIN_TIMEOUT 50
196
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345 _timeout = timeout > MIN_TIMEOUT ? MIN_TIMEOUT : timeout;
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346 mon_set_read_char_timeout(_timeout);
115
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347 while (timeout > 0) {
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348 res = mon_read_char_with_timeout(&c);
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349 if (res) {
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350 // Got a character
156
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351 do_idle(false);
115
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352 break;
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353 }
196
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354 timeout -= _timeout;
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355 }
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356 if (res == false) {
156
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357 do_idle(true);
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358 return _GETS_TIMEOUT; // Input timed out
115
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359 }
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360 } else {
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361 mon_read_char(&c);
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362 }
194
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363 *eol = '\0';
115
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364 switch (c) {
194
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365 #define CTRL(c) ((c)&0x1F)
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366 #if CYGNUM_REDBOOT_CMD_LINE_EDITING != 0
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367 case CTRL('P'):
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368 // Fetch the previous line into the buffer
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369 if (_index >= 0) {
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370 // Erase the previous line [crude]
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371 while (ip != buf) {
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372 mon_write_char('\b');
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373 mon_write_char(' ');
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374 mon_write_char('\b');
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375 ip--;
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376 }
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377 strcpy(buf, _cl_lines[_index]);
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378 while (*ip) {
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379 mon_write_char(*ip++);
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380 }
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381 eol = ip;
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382 // Move to previous line
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383 _index--;
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384 if (_index < 0) {
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385 _index = _cl_max_index;
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386 }
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387 } else {
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388 mon_write_char(0x07); // Audible bell on most devices
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389 }
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390 break;
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391 case CTRL('N'):
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392 // Fetch the next line into the buffer
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393 if (_index >= 0) {
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394 if (++_index > _cl_max_index) _index = 0;
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395 // Erase the previous line [crude]
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396 while (ip != buf) {
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397 mon_write_char('\b');
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398 mon_write_char(' ');
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399 mon_write_char('\b');
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400 ip--;
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401 }
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402 strcpy(buf, _cl_lines[_index]);
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403 while (*ip) {
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404 mon_write_char(*ip++);
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405 }
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406 eol = ip;
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407 } else {
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408 mon_write_char(0x07); // Audible bell on most devices
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409 }
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410 break;
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411 case CTRL('B'):
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412 // Move insertion point backwards
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413 if (ip != buf) {
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414 mon_write_char('\b');
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415 ip--;
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416 }
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417 break;
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418 case CTRL('F'):
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419 // Move insertion point forwards
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420 if (ip != eol) {
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421 mon_write_char(*ip++);
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422 }
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423 break;
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424 case CTRL('E'):
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425 // Move insertion point to end of line
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426 while (ip != eol) {
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427 mon_write_char(*ip++);
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428 }
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429 break;
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parents: 191
diff changeset
430 case CTRL('A'):
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jlarmour
parents: 191
diff changeset
431 // Move insertion point to beginning of line
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jlarmour
parents: 191
diff changeset
432 if (ip != buf) {
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jlarmour
parents: 191
diff changeset
433 xp = eol;
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jlarmour
parents: 191
diff changeset
434 while (xp-- != buf) {
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jlarmour
parents: 191
diff changeset
435 mon_write_char('\b');
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jlarmour
parents: 191
diff changeset
436 }
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parents: 191
diff changeset
437 }
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jlarmour
parents: 191
diff changeset
438 ip = buf;
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jlarmour
parents: 191
diff changeset
439 break;
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jlarmour
parents: 191
diff changeset
440 case CTRL('K'):
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jlarmour
parents: 191
diff changeset
441 // Kill to the end of line
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jlarmour
parents: 191
diff changeset
442 if (ip != eol) {
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jlarmour
parents: 191
diff changeset
443 xp = ip;
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jlarmour
parents: 191
diff changeset
444 while (xp++ != eol) {
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jlarmour
parents: 191
diff changeset
445 mon_write_char(' ');
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jlarmour
parents: 191
diff changeset
446 }
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jlarmour
parents: 191
diff changeset
447 while (--xp != ip) {
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jlarmour
parents: 191
diff changeset
448 mon_write_char('\b');
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jlarmour
parents: 191
diff changeset
449 }
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parents: 191
diff changeset
450 eol = ip;
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jlarmour
parents: 191
diff changeset
451 }
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jlarmour
parents: 191
diff changeset
452 break;
195
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jlarmour
parents: 194
diff changeset
453 case CTRL('D'):
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jlarmour
parents: 194
diff changeset
454 // Erase the character under the cursor
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jlarmour
parents: 194
diff changeset
455 if (ip != eol) {
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jlarmour
parents: 194
diff changeset
456 xp = ip;
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jlarmour
parents: 194
diff changeset
457 eol--;
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jlarmour
parents: 194
diff changeset
458 while (xp != eol) {
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jlarmour
parents: 194
diff changeset
459 *xp = *(xp+1);
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jlarmour
parents: 194
diff changeset
460 mon_write_char(*xp++);
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jlarmour
parents: 194
diff changeset
461 }
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jlarmour
parents: 194
diff changeset
462 mon_write_char(' '); // Erases last character
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jlarmour
parents: 194
diff changeset
463 mon_write_char('\b');
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jlarmour
parents: 194
diff changeset
464 while (xp-- != ip) {
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jlarmour
parents: 194
diff changeset
465 mon_write_char('\b');
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jlarmour
parents: 194
diff changeset
466 }
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jlarmour
parents: 194
diff changeset
467 }
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jlarmour
parents: 194
diff changeset
468 break;
194
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jlarmour
parents: 191
diff changeset
469 #endif // CYGNUM_REDBOOT_CMD_LINE_EDITING
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parents: 191
diff changeset
470 case CTRL('C'): // ^C
195
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jlarmour
parents: 194
diff changeset
471 // Abort current input
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jlarmour
parents: 194
diff changeset
472 diag_printf("^C\n");
196
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jlarmour
parents: 195
diff changeset
473 *buf = '\0'; // Nothing useful in buffer
195
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jlarmour
parents: 194
diff changeset
474 return _GETS_CTRLC;
115
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jlarmour
parents:
diff changeset
475 case '\n':
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jlarmour
parents:
diff changeset
476 case '\r':
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jlarmour
parents:
diff changeset
477 // If previous character was the "other" end-of-line, ignore this one
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jlarmour
parents:
diff changeset
478 if (((c == '\n') && (last_ch == '\r')) ||
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jlarmour
parents:
diff changeset
479 ((c == '\r') && (last_ch == '\n'))) {
128
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jlarmour
parents: 126
diff changeset
480 c = '\0';
115
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
481 break;
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jlarmour
parents:
diff changeset
482 }
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jlarmour
parents:
diff changeset
483 // End of line
128
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jlarmour
parents: 126
diff changeset
484 if (console_echo) {
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jlarmour
parents: 126
diff changeset
485 mon_write_char('\r');
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parents: 126
diff changeset
486 mon_write_char('\n');
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parents: 126
diff changeset
487 }
115
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jlarmour
parents:
diff changeset
488 last_ch = c;
194
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diff changeset
489 #if CYGNUM_REDBOOT_CMD_LINE_EDITING != 0
195
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diff changeset
490 if (cmd_history) {
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jlarmour
parents: 194
diff changeset
491 // Save current line - only when enabled
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diff changeset
492 if (++_cl_index == _CL_NUM_LINES) _cl_index = 0;
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diff changeset
493 if (_cl_index > _cl_max_index) _cl_max_index = _cl_index;
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parents: 194
diff changeset
494 strcpy(_cl_lines[_cl_index], buf);
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jlarmour
parents: 194
diff changeset
495 }
194
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diff changeset
496 #endif
143
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diff changeset
497 return _GETS_OK;
115
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parents:
diff changeset
498 case '\b':
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jlarmour
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diff changeset
499 case 0x7F: // DEL
194
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parents: 191
diff changeset
500 if (ip != buf) {
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parents: 191
diff changeset
501 #if CYGNUM_REDBOOT_CMD_LINE_EDITING != 0
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parents: 191
diff changeset
502 if (ip != eol) {
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jlarmour
parents: 191
diff changeset
503 ip--;
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diff changeset
504 mon_write_char('\b');
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jlarmour
parents: 191
diff changeset
505 xp = ip;
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jlarmour
parents: 191
diff changeset
506 while (xp != (eol-1)) {
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parents: 191
diff changeset
507 *xp = *(xp+1);
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parents: 191
diff changeset
508 mon_write_char(*xp++);
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parents: 191
diff changeset
509 }
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parents: 191
diff changeset
510 mon_write_char(' '); // Erases last character
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parents: 191
diff changeset
511 mon_write_char('\b');
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jlarmour
parents: 191
diff changeset
512 while (xp-- != ip) {
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jlarmour
parents: 191
diff changeset
513 mon_write_char('\b');
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diff changeset
514 }
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parents: 191
diff changeset
515 } else {
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jlarmour
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diff changeset
516 if (console_echo) {
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jlarmour
parents: 191
diff changeset
517 mon_write_char('\b');
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jlarmour
parents: 191
diff changeset
518 mon_write_char(' ');
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jlarmour
parents: 191
diff changeset
519 mon_write_char('\b');
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jlarmour
parents: 191
diff changeset
520 }
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diff changeset
521 ip--;
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parents: 191
diff changeset
522 }
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jlarmour
parents: 191
diff changeset
523 eol--;
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diff changeset
524 #else
128
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jlarmour
parents: 126
diff changeset
525 if (console_echo) {
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jlarmour
parents: 126
diff changeset
526 mon_write_char('\b');
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parents: 126
diff changeset
527 mon_write_char(' ');
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parents: 126
diff changeset
528 mon_write_char('\b');
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parents: 126
diff changeset
529 }
194
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parents: 191
diff changeset
530 ip--;
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jlarmour
parents: 191
diff changeset
531 eol--;
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jlarmour
parents: 191
diff changeset
532 #endif
115
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jlarmour
parents:
diff changeset
533 }
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jlarmour
parents:
diff changeset
534 break;
182
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jlarmour
parents: 179
diff changeset
535 #ifdef CYGDBG_HAL_DEBUG_GDB_INCLUDE_STUBS
178
aa8364213009 Merge from eCos master repository on 2001-08-15-01:50:29-BST
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parents: 177
diff changeset
536 case '+': // fall through
115
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jlarmour
parents:
diff changeset
537 case '$':
194
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parents: 191
diff changeset
538 if (ip == buf || last_ch != '\\')
177
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parents: 172
diff changeset
539 {
115
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
540 // Give up and try GDB protocol
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jlarmour
parents:
diff changeset
541 ungetDebugChar(c); // Push back character so stubs will see it
143
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parents: 128
diff changeset
542 return _GETS_GDB;
115
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
543 }
191
678094f34118 Merge from eCos master repository on 2001-10-19-06:43:02-BST
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parents: 182
diff changeset
544 if (last_ch == '\\') {
194
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parents: 191
diff changeset
545 #if CYGNUM_REDBOOT_CMD_LINE_EDITING != 0
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jlarmour
parents: 191
diff changeset
546 if (ip == eol) {
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jlarmour
parents: 191
diff changeset
547 // Just save \$ as $
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jlarmour
parents: 191
diff changeset
548 eol = --ip;
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jlarmour
parents: 191
diff changeset
549 } else {
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jlarmour
parents: 191
diff changeset
550 mon_write_char('\b');
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jlarmour
parents: 191
diff changeset
551 *--ip = c;
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jlarmour
parents: 191
diff changeset
552 mon_write_char(c);
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jlarmour
parents: 191
diff changeset
553 break;
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jlarmour
parents: 191
diff changeset
554 }
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jlarmour
parents: 191
diff changeset
555 #else
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jlarmour
parents: 191
diff changeset
556 ip--; // Save \$ as $
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jlarmour
parents: 191
diff changeset
557 #endif
191
678094f34118 Merge from eCos master repository on 2001-10-19-06:43:02-BST
jlarmour
parents: 182
diff changeset
558 }
178
aa8364213009 Merge from eCos master repository on 2001-08-15-01:50:29-BST
jlarmour
parents: 177
diff changeset
559 // else fall through
162
2395031e7a66 Merge from eCos master repository on 2001-06-15-06:43:03-BST
jlarmour
parents: 161
diff changeset
560 #endif
115
6ed91473a1cd Merge from eCos master repository on 2000-08-21-22:40:54-BST
jlarmour
parents:
diff changeset
561 default:
194
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jlarmour
parents: 191
diff changeset
562 #if CYGNUM_REDBOOT_CMD_LINE_EDITING != 0
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parents: 191
diff changeset
563 // If the insertion point is not at the end of line, make space for it
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jlarmour
parents: 191
diff changeset
564 if (ip != eol) {
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jlarmour
parents: 191
diff changeset
565 xp = eol;
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jlarmour
parents: 191
diff changeset
566 *++eol = '\0';
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jlarmour
parents: 191
diff changeset
567 while (xp != ip) {
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jlarmour
parents: 191
diff changeset
568 *xp = *(xp-1);
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jlarmour
parents: 191
diff changeset
569 xp--;
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jlarmour
parents: 191
diff changeset
570 }
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jlarmour
parents: 191
diff changeset
571 }
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parents: 191
diff changeset
572 #endif
128
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jlarmour
parents: 126
diff changeset
573 if (console_echo) {
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jlarmour
parents: 126
diff changeset
574 mon_write_char(c);
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jlarmour
parents: 126
diff changeset
575 }
194
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jlarmour
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576 if (ip == eol) {
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577 // Advance both pointers
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578 *ip++ = c;
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579 eol = ip;
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580 #if CYGNUM_REDBOOT_CMD_LINE_EDITING != 0
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581 } else {
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582 // Just insert the character
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583 *ip++ = c;
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584 xp = ip;
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585 while (xp != eol) {
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586 mon_write_char(*xp++);
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587 }
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588 while (xp-- != ip) {
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589 mon_write_char('\b');
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590 }
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591 #endif
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592 }
115
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593 }
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594 last_ch = c;
194
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595 if (ip == buf + buflen) // Buffer full
158
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596 return buflen;
115
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597 }
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598 }
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599
195
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600 int
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601 _rb_gets(char *buf, int buflen, int timeout)
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602 {
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603 *buf = '\0'; // Empty buffer
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604 return _rb_gets_preloaded(buf, buflen, timeout);
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605 }
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606
208
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607 static bool
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608 _verify_action(int timeout, char *fmt, va_list ap)
115
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609 {
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610 char ans[8];
208
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611 int ret;
159
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612 #ifdef CYGFUN_REDBOOT_BOOT_SCRIPT
161
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613 // Don't ask if we're executing a script
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614 if (script && *script)
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615 return 1;
115
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616 #endif
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617
208
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618 diag_vprintf(fmt, ap);
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619 diag_printf(" - continue (y/n)? ");
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620 if ((ret = _rb_gets(ans, sizeof(ans), timeout)) > 0) {
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621 return ((ans[0] == 'y') || (ans[0] == 'Y'));
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622 } else {
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623 if (ret == _GETS_TIMEOUT) {
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624 diag_printf(" ** Timed out!\n");
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625 }
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626 return 0; // Timed out or ^C
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627 }
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628 }
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629
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630 bool
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631 verify_action(char *fmt, ...)
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632 {
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633 va_list ap;
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634
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635 va_start(ap, fmt);
208
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636 return _verify_action(0, fmt, ap);
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637 }
208
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638
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639 bool
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640 verify_action_with_timeout(int timeout, char *fmt, ...)
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641 {
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642 va_list ap;
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643
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644 va_start(ap, fmt);
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645 return _verify_action(timeout, fmt, ap);
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646 }