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annotate packages/redboot/current/src/load.c @ 182:f62680ef1804

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Merge from eCos master repository on 2001-09-07-06:43:02-BST
author jlarmour
date Wed, 12 Sep 2001 00:59:17 +0000
parents 391299f9e541
children 022f1e506033
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1 //==========================================================================
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2 //
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3 // load.c
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4 //
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5 // RedBoot file/image loader
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6 //
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7 //==========================================================================
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8 //####COPYRIGHTBEGIN####
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9 //
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10 // -------------------------------------------
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11 // The contents of this file are subject to the Red Hat eCos Public License
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12 // Version 1.1 (the "License"); you may not use this file except in
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13 // compliance with the License. You may obtain a copy of the License at
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14 // http://www.redhat.com/
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15 //
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16 // Software distributed under the License is distributed on an "AS IS"
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17 // basis, WITHOUT WARRANTY OF ANY KIND, either express or implied. See the
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18 // License for the specific language governing rights and limitations under
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19 // the License.
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20 //
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21 // The Original Code is eCos - Embedded Configurable Operating System,
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22 // released September 30, 1998.
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23 //
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24 // The Initial Developer of the Original Code is Red Hat.
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25 // Portions created by Red Hat are
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26 // Copyright (C) 1998, 1999, 2000, 2001 Red Hat, Inc.
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27 // All Rights Reserved.
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28 // -------------------------------------------
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29 //
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30 //####COPYRIGHTEND####
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31 //==========================================================================
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32 //#####DESCRIPTIONBEGIN####
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33 //
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34 // Author(s): gthomas
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35 // Contributors: gthomas, tsmith
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36 // Date: 2000-07-14
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37 // Purpose:
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38 // Description:
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39 //
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40 // This code is part of RedBoot (tm).
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41 //
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42 //####DESCRIPTIONEND####
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43 //
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44 //==========================================================================
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45
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46 #include <redboot.h>
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47 #include <xyzModem.h>
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48 #ifdef CYGPKG_REDBOOT_DISK
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49 #include <fs/disk.h>
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50 #endif
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51
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52
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53 // Buffer used by redboot_getc
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54 getc_info_t getc_info;
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55
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56 static char usage[] = "[-r] [-v] "
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57 #ifdef CYGPKG_COMPRESS_ZLIB
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58 "[-d] "
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59 #endif
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60 "[-h <host>] [-m {TFTP | xyzMODEM"
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61 #ifdef CYGPKG_REDBOOT_DISK
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62 " | disk"
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63 #endif
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64 "}]\n [-b <base_address>] <file_name>";
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65
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66 // Exported CLI function
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67 RedBoot_cmd("load",
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68 "Load a file",
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69 usage,
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70 do_load
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71 );
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72
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73 static unsigned long
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74 load_elf_image(int (*getc)(void))
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75 {
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76 diag_printf("ELF images not supported\n");
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77 return 0;
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78 }
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79
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80 //
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81 // Scan a string of hex bytes and update the checksum
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82 //
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83 static long
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84 _hex2(int (*getc)(void), int len, long *sum)
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85 {
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86 int val, byte;
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87 char c1, c2;
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88
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89 val = 0;
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90 while (len-- > 0) {
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91 c1 = (*getc)();
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92 c2 = (*getc)();
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93 if (_is_hex(c1) && _is_hex(c2)) {
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94 val <<= 8;
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95 byte = (_from_hex(c1)<<4) | _from_hex(c2);
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96 val |= byte;
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97 if (sum) {
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98 *sum += byte;
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99 }
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100 } else {
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101 return (-1);
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102 }
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103 }
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104 return (val);
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105 }
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106
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107 //
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108 // Process a set of S-records, loading the contents into memory.
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109 // Note: if a "base" value is provided, the data will be relocated
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110 // relative to that location. Of course, this can only work for
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111 // the first section of the data, so if there are non-contiguous
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112 // pieces of data, they will end up relocated in the same fashion.
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113 // Because of this, "base" probably only makes sense for a set of
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114 // data which has only one section, e.g. a ROM image.
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115 //
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116 #define MAX_LINE 80
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117 static unsigned long
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118 load_srec_image(int (*getc)(void), void (*terminate)(int method,int (*getc)(void)), unsigned long base)
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119 {
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120 char line[MAX_LINE];
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121 char *lp;
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122 int c, len;
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123 long offset = 0, count, sum, val, cksum;
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124 unsigned char *addr, *base_addr;
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125 char type;
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126 bool first_addr = true;
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127 unsigned long addr_offset = 0;
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128 unsigned long highest_address = 0;
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129 unsigned long lowest_address = 0xFFFFFFFF;
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130
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131 while ((c = (*getc)()) > 0) {
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132 lp = line; len = 0;
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133 // Start of line
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134 if (c != 'S') {
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135 if (terminate) (*terminate)(xyzModem_abort, getc);
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136 diag_printf("Invalid S-record at offset %p, input: %c\n",
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137 (void *)offset, c);
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138 return 0;
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139 }
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140 type = (*getc)();
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141 offset += 2;
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142 sum = 0;
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143 if ((count = _hex2(getc, 1, &sum)) < 0) {
182
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144 if (terminate) (*terminate)(xyzModem_abort, getc);
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145 diag_printf("Bad S-record count at offset %p\n", (void *)offset);
156
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146 return 0;
115
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147 }
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148 offset += 1;
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149 switch (type) {
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150 case '0':
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151 break;
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parents:
diff changeset
152 case '1':
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153 case '2':
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154 case '3':
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155 base_addr = addr = (unsigned char *)_hex2(getc, (type-'1'+2), &sum);
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156 offset += (type-'1'+2);
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157 if (first_addr) {
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158 if (base) {
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159 addr_offset = (unsigned long)base - (unsigned long)addr;
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160 } else {
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161 addr_offset = 0;
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162 }
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163 first_addr = false;
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164 }
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165 addr += addr_offset;
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166 if ((unsigned long)(addr-addr_offset) < lowest_address) {
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167 lowest_address = (unsigned long)(addr - addr_offset);
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168 }
174
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parents: 171
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169 #ifdef CYGSEM_REDBOOT_VALIDATE_USER_RAM_LOADS
156
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170 if ((addr < user_ram_start) || (addr > user_ram_end)) {
182
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171 // Only if there is no need to stop the download before printing
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172 // output can we ask confirmation questions.
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173 if (terminate) {
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parents: 179
diff changeset
174 (*terminate)(xyzModem_abort, getc);
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175 diag_printf("*** Warning! Attempt to load S-record to address: %p\nRedBoot does not believe this is in RAM\nUse TFTP for a chance to override this.\n",(void*)addr);
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diff changeset
176 } else {
161
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diff changeset
177 if (!verify_action("Attempt to load S-record data to address: %p\n"
171
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178 "RedBoot does not believe this is in RAM", (void*)addr))
161
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179 return 0;
182
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parents: 179
diff changeset
180 }
115
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181 }
174
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diff changeset
182 #endif
115
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183 count -= ((type-'1'+2)+1);
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184 offset += count;
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185 while (count-- > 0) {
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186 val = _hex2(getc, 1, &sum);
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187 *addr++ = val;
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188 }
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189 cksum = _hex2(getc, 1, 0);
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190 offset += 1;
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191 sum = sum & 0xFF;
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192 cksum = (~cksum & 0xFF);
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193 if (cksum != sum) {
182
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diff changeset
194 if (terminate) (*terminate)(xyzModem_abort, getc);
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195 diag_printf("*** Warning! Checksum failure - Addr: %lx, %02lX <> %02lX\n",
115
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196 (unsigned long)base_addr, sum, cksum);
156
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197 return 0;
115
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198 }
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199 if ((unsigned long)(addr-addr_offset) > highest_address) {
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200 highest_address = (unsigned long)(addr - addr_offset);
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201 }
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202 break;
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diff changeset
203 case '7':
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diff changeset
204 case '8':
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205 case '9':
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206 addr = (unsigned char *)_hex2(getc, ('9'-type+2), &sum);
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207 offset += ('9'-type+2);
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208 entry_address = (unsigned long *)addr;
182
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diff changeset
209 if (terminate) (*terminate)(xyzModem_close, getc);
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210 if (addr_offset) diag_printf("Address offset = %p\n", (void *)addr_offset);
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211 diag_printf("Entry point: %p, address range: %p-%p\n",
143
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212 (void*)entry_address, (void *)lowest_address, (void *)highest_address);
156
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213 return highest_address;
115
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214 default:
182
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215 if (terminate) (*terminate)(xyzModem_abort, getc);
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216 diag_printf("Invalid S-record at offset 0x%lx, type: %x\n",
115
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217 (unsigned long)offset, type);
156
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diff changeset
218 return 0;
115
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219 }
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220 while ((c = (*getc)()) != '\n') offset++;
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221 }
156
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222 return 0;
115
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223 }
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224
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225
124
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diff changeset
226 int
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diff changeset
227 redboot_getc(void)
115
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228 {
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229 static char spin[] = "|/-\\|-";
124
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diff changeset
230 if (getc_info.avail < 0) {
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diff changeset
231 return -1;
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diff changeset
232 }
115
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233 if (getc_info.avail == 0) {
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234 if (getc_info.verbose) {
182
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diff changeset
235 diag_printf("%c\b", spin[getc_info.tick++]);
115
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236 if (getc_info.tick >= sizeof(spin)) {
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237 getc_info.tick = 0;
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238 }
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diff changeset
239 }
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diff changeset
240 if (getc_info.len < BUF_SIZE) {
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241 // No more data available
182
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diff changeset
242 if (getc_info.verbose) diag_printf("\n");
115
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243 return -1;
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244 }
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245 getc_info.bufp = getc_info.buf;
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246 getc_info.len = (*getc_info.fun)(getc_info.bufp, BUF_SIZE, &getc_info.err);
117
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diff changeset
247 if ((getc_info.avail = getc_info.len) <= 0) {
182
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diff changeset
248 if (getc_info.verbose) diag_printf("\n");
115
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249 return -1;
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250 }
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251 }
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252 getc_info.avail--;
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253 return *getc_info.bufp++;
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254 }
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255
124
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diff changeset
256 void
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diff changeset
257 redboot_getc_init(int (*fun)(char *, int, int *), int verbose)
115
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258 {
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259 getc_info.avail = 0;
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260 getc_info.len = BUF_SIZE;
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261 getc_info.fun = fun;
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262 getc_info.verbose = verbose;
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263 getc_info.tick = 0;
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264 }
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265
124
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diff changeset
266 void
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diff changeset
267 redboot_getc_rewind(void)
115
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268 {
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269 getc_info.bufp = getc_info.buf;
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270 getc_info.avail = getc_info.len;
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271 }
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272
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273 #define MODE_TFTP 0
174
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diff changeset
274 #define MODE_XMODEM xyzModem_xmodem // 1
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275 #define MODE_YMODEM xyzModem_ymodem // 2
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276 #define MODE_ZMODEM xyzModem_zmodem // 3
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diff changeset
277 #define MODE_DISK 4
115
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278
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279 void
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diff changeset
280 do_load(int argc, char *argv[])
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281 {
126
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diff changeset
282 int res, num_options;
132
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diff changeset
283 int i, err, mode;
117
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diff changeset
284 bool verbose, raw;
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diff changeset
285 bool base_addr_set, mode_str_set;
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diff changeset
286 char *mode_str;
115
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287 #ifdef CYGPKG_REDBOOT_NETWORKING
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288 struct sockaddr_in host;
117
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289 bool hostname_set;
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290 char *hostname;
115
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291 #endif
156
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diff changeset
292 #ifdef CYGPKG_COMPRESS_ZLIB
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293 bool decompress;
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diff changeset
294 #endif
115
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295 unsigned long base = 0;
156
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diff changeset
296 unsigned long end = 0;
115
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diff changeset
297 char type[4];
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298 char *filename = 0;
156
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diff changeset
299 struct option_info opts[6];
115
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300
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301 #ifdef CYGPKG_REDBOOT_NETWORKING
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302 memset((char *)&host, 0, sizeof(host));
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303 host.sin_len = sizeof(host);
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304 host.sin_family = AF_INET;
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305 host.sin_addr = my_bootp_info.bp_siaddr;
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306 host.sin_port = 0;
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diff changeset
307 #endif
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308 #ifdef CYGPKG_REDBOOT_NETWORKING
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309 mode = MODE_TFTP;
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310 #else
132
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311 mode = MODE_YMODEM;
115
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312 #endif
117
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313
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314 init_opts(&opts[0], 'v', false, OPTION_ARG_TYPE_FLG,
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315 (void **)&verbose, 0, "verbose");
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316 init_opts(&opts[1], 'r', false, OPTION_ARG_TYPE_FLG,
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diff changeset
317 (void **)&raw, 0, "load raw data");
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diff changeset
318 init_opts(&opts[2], 'b', true, OPTION_ARG_TYPE_NUM,
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319 (void **)&base, (bool *)&base_addr_set, "load address");
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320 init_opts(&opts[3], 'm', true, OPTION_ARG_TYPE_STR,
174
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321 (void **)&mode_str, (bool *)&mode_str_set, "download mode (TFTP, xyzMODEM, or disk)");
117
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322 num_options = 4;
115
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323 #ifdef CYGPKG_REDBOOT_NETWORKING
179
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324 init_opts(&opts[num_options], 'h', true, OPTION_ARG_TYPE_STR,
117
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325 (void **)&hostname, (bool *)&hostname_set, "host name (IP address)");
156
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326 num_options++;
115
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327 #endif
156
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328 #ifdef CYGPKG_COMPRESS_ZLIB
179
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329 init_opts(&opts[num_options], 'd', false, OPTION_ARG_TYPE_FLG,
156
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330 (void **)&decompress, 0, "decompress");
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331 num_options++;
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332 #endif
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333
117
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334 if (!scan_opts(argc, argv, 1, opts, num_options, (void *)&filename, OPTION_ARG_TYPE_STR, "file name"))
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335 {
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336 return;
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337 }
115
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338 #ifdef CYGPKG_REDBOOT_NETWORKING
117
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339 if (hostname_set) {
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340 if (!inet_aton(hostname, (in_addr_t *)&host)) {
182
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341 diag_printf("Invalid IP address: %s\n", hostname);
117
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342 return;
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343 }
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344 }
115
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345 #endif
117
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346 if (mode_str_set) {
182
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347 if (strncasecmp(&mode_str[1], "modem", strlen(&mode_str[1])) == 0) {
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348 switch (_tolower(mode_str[0])) {
132
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diff changeset
349 case 'x':
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350 mode = MODE_XMODEM;
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351 break;
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352 case 'y':
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353 mode = MODE_YMODEM;
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354 break;
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diff changeset
355 case 'z':
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356 mode = MODE_ZMODEM;
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357 break;
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358 default:
182
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359 diag_printf("Invalid 'mode': %s\n", mode_str);
132
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360 return;
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diff changeset
361 }
165
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diff changeset
362 // When using a serial download type, override verbose
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363 // setting: spinner interferes with the protocol.
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364 verbose = false;
174
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365 #ifdef CYGPKG_REDBOOT_DISK
182
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366 } else if (strcasecmp(mode_str, "disk") == 0) {
174
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367 mode = MODE_DISK;
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diff changeset
368 #endif
117
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369 #ifdef CYGPKG_REDBOOT_NETWORKING
182
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370 } else if (strcasecmp(mode_str, "tftp") == 0) {
117
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371 mode = MODE_TFTP;
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372 if (!have_net) {
182
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373 diag_printf("TFTP mode requires a working network\n");
115
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374 return;
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375 }
117
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diff changeset
376 #endif
115
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377 } else {
182
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378 diag_printf("Invalid 'mode': %s\n", mode_str);
117
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379 return;
115
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380 }
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381 }
174
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diff changeset
382 #if defined(CYGPKG_REDBOOT_NETWORKING) || defined(CYGPKG_REDBOOT_DISK)
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383 if ((mode == MODE_TFTP || mode == MODE_DISK) && !filename) {
182
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diff changeset
384 diag_printf("File name missing\n");
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diff changeset
385 diag_printf("usage: load %s\n", usage);
115
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386 return;
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387 }
162
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diff changeset
388 #endif
174
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diff changeset
389 #ifdef CYGSEM_REDBOOT_VALIDATE_USER_RAM_LOADS
153
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diff changeset
390 if (base_addr_set &&
156
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diff changeset
391 ((base < (unsigned long)user_ram_start) ||
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diff changeset
392 (base > (unsigned long)user_ram_end))) {
161
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393 if (!verify_action("Specified address (%p) is not believed to be in RAM", (void*)base))
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394 return;
143
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diff changeset
395 }
174
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diff changeset
396 #endif
157
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diff changeset
397 if (raw && !base_addr_set) {
182
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diff changeset
398 diag_printf("Raw load requires a memory address\n");
157
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diff changeset
399 return;
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diff changeset
400 }
115
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parents:
diff changeset
401 #ifdef CYGPKG_REDBOOT_NETWORKING
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diff changeset
402 if (mode == MODE_TFTP) {
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403 res = tftp_stream_open(filename, &host, TFTP_OCTET, &err);
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parents:
diff changeset
404 if (res < 0) {
182
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diff changeset
405 diag_printf("Can't load '%s': %s\n", filename, tftp_error(err));
115
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406 return;
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diff changeset
407 }
124
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diff changeset
408 redboot_getc_init(tftp_stream_read, verbose);
115
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parents:
diff changeset
409 }
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diff changeset
410 #endif
174
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diff changeset
411 #ifdef CYGPKG_REDBOOT_DISK
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diff changeset
412 else if (mode == MODE_DISK) {
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diff changeset
413 res = disk_stream_open(filename, &err);
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diff changeset
414 if (res < 0) {
182
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diff changeset
415 diag_printf("Can't load '%s': %s\n", filename, disk_error(err));
174
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diff changeset
416 return;
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diff changeset
417 }
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diff changeset
418 redboot_getc_init(disk_stream_read, verbose);
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parents: 171
diff changeset
419 }
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diff changeset
420 #endif
132
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421 else {
174
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422 res = xyzModem_stream_open(filename, mode, &err);
132
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423 if (res < 0) {
182
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424 diag_printf("Can't load '%s': %s\n", filename, xyzModem_error(err));
132
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diff changeset
425 return;
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parents: 126
diff changeset
426 }
143
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diff changeset
427 // Suppress verbosity when using xyz modem download
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428 redboot_getc_init(xyzModem_stream_read, 0 && verbose);
115
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parents:
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429 }
157
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430 if (raw) {
156
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431 #ifdef CYGPKG_COMPRESS_ZLIB
157
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432 if (decompress) {
163
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433 _pipe_t load_pipe;
157
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434 _pipe_t* p = &load_pipe;
163
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435 unsigned char _buffer[CYGNUM_REDBOOT_LOAD_ZLIB_BUFFER];
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436
157
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437 p->out_buf = (unsigned char*) base;
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diff changeset
438 p->out_size = 0;
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diff changeset
439 p->in_buf = _buffer;
156
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diff changeset
440
157
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441 err = (*_dc_init)(p);
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diff changeset
442
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diff changeset
443 while (0 == err) {
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444 p->in_avail = 0;
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445 for (i = 0; i < CYGNUM_REDBOOT_LOAD_ZLIB_BUFFER; i++) {
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446 res = redboot_getc();
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447 if (res < 0) break;
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448 p->in_buf[p->in_avail++] = res;
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449 }
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diff changeset
450 if (0 == p->in_avail) break;
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diff changeset
451
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452 err = (*_dc_inflate)(p);
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diff changeset
453 }
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diff changeset
454
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diff changeset
455 // Free used resources, do final translation of
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diff changeset
456 // error value.
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457 err = (*_dc_close)(p, err);
156
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diff changeset
458
161
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459 if (0 != err && p->msg) {
182
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460 diag_printf("decompression error: %s\n", p->msg);
161
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461 }
156
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diff changeset
462
157
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463 end = (unsigned long) base + p->out_size;
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464 } else // dangling block
156
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diff changeset
465 #endif
157
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diff changeset
466 {
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diff changeset
467 unsigned char *mp = (unsigned char *)base;
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diff changeset
468 while ((res = redboot_getc()) >= 0) {
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diff changeset
469 *mp++ = res;
132
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diff changeset
470 }
157
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diff changeset
471 err = 0;
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diff changeset
472 end = (unsigned long) mp;
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diff changeset
473 }
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diff changeset
474 if (0 == err)
182
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475 diag_printf("Raw file loaded %p-%p\n", (void *)base, (void *)end);
157
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diff changeset
476 } else {
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diff changeset
477 // Read initial header - to determine file [image] type
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diff changeset
478 for (i = 0; i < sizeof(type); i++) {
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diff changeset
479 if ((res = redboot_getc()) < 0) {
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diff changeset
480 err = getc_info.err;
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diff changeset
481 break;
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diff changeset
482 }
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diff changeset
483 type[i] = res;
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diff changeset
484 }
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diff changeset
485 if (res >= 0) {
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diff changeset
486 redboot_getc_rewind(); // Restore header to stream
132
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diff changeset
487 // Treat data as some sort of executable image
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488 if (strncmp(&type[1], "ELF", 3) == 0) {
156
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diff changeset
489 end = load_elf_image(redboot_getc);
132
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diff changeset
490 } else if ((type[0] == 'S') &&
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diff changeset
491 ((type[1] >= '0') && (type[1] <= '9'))) {
182
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diff changeset
492 switch (mode) {
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diff changeset
493 case MODE_XMODEM:
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diff changeset
494 case MODE_YMODEM:
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diff changeset
495 case MODE_ZMODEM:
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diff changeset
496 end = load_srec_image(redboot_getc, xyzModem_stream_terminate, base);
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diff changeset
497 break;
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diff changeset
498 default:
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diff changeset
499 end = load_srec_image(redboot_getc, NULL, base);
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diff changeset
500 break;
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diff changeset
501 }
132
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diff changeset
502 } else {
182
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diff changeset
503 diag_printf("Unrecognized image type: 0x%lx\n", *(unsigned long *)type);
115
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parents:
diff changeset
504 }
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parents:
diff changeset
505 }
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parents:
diff changeset
506 }
174
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diff changeset
507
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diff changeset
508 switch (mode) {
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diff changeset
509 #ifdef CYGPKG_REDBOOT_DISK
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diff changeset
510 case MODE_DISK:
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diff changeset
511 disk_stream_close(&err);
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diff changeset
512 break;
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diff changeset
513 #endif
115
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parents:
diff changeset
514 #ifdef CYGPKG_REDBOOT_NETWORKING
174
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diff changeset
515 case MODE_TFTP:
115
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parents:
diff changeset
516 tftp_stream_close(&err);
174
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diff changeset
517 break;
115
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parents:
diff changeset
518 #endif
174
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diff changeset
519 default:
143
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diff changeset
520 xyzModem_stream_close(&err);
174
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diff changeset
521 break;
143
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diff changeset
522 }
115
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parents:
diff changeset
523 return;
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parents:
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524 }