OpenWrt – Blame information for rev 1
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1 | office | 1 | /* |
2 | * (C) Copyright 2000 |
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3 | * Wolfgang Denk, DENX Software Engineering, wd@denx.de. |
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4 | * |
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5 | * See file CREDITS for list of people who contributed to this |
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6 | * project. |
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7 | * |
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8 | * This program is free software; you can redistribute it and/or |
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9 | * modify it under the terms of the GNU General Public License as |
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10 | * published by the Free Software Foundation; either version 2 of |
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11 | * the License, or (at your option) any later version. |
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12 | * |
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13 | * This program is distributed in the hope that it will be useful, |
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14 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
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15 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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16 | * GNU General Public License for more details. |
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17 | * |
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18 | * You should have received a copy of the GNU General Public License |
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19 | * along with this program; if not, write to the Free Software |
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20 | * Foundation, Inc., 59 Temple Place, Suite 330, Boston, |
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21 | * MA 02111-1307 USA |
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22 | */ |
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23 | |||
24 | #ifndef __IMAGE_H__ |
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25 | #define __IMAGE_H__ |
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26 | |||
27 | /* |
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28 | * Operating System Codes |
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29 | */ |
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30 | #define IH_OS_INVALID 0 /* Invalid OS */ |
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31 | #define IH_OS_OPENBSD 1 /* OpenBSD */ |
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32 | #define IH_OS_NETBSD 2 /* NetBSD */ |
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33 | #define IH_OS_FREEBSD 3 /* FreeBSD */ |
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34 | #define IH_OS_4_4BSD 4 /* 4.4BSD */ |
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35 | #define IH_OS_LINUX 5 /* Linux */ |
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36 | #define IH_OS_SVR4 6 /* SVR4 */ |
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37 | #define IH_OS_ESIX 7 /* Esix */ |
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38 | #define IH_OS_SOLARIS 8 /* Solaris */ |
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39 | #define IH_OS_IRIX 9 /* Irix */ |
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40 | #define IH_OS_SCO 10 /* SCO */ |
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41 | #define IH_OS_DELL 11 /* Dell */ |
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42 | #define IH_OS_NCR 12 /* NCR */ |
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43 | #define IH_OS_LYNXOS 13 /* LynxOS */ |
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44 | #define IH_OS_VXWORKS 14 /* VxWorks */ |
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45 | #define IH_OS_PSOS 15 /* pSOS */ |
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46 | #define IH_OS_QNX 16 /* QNX */ |
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47 | #define IH_OS_U_BOOT 17 /* Firmware */ |
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48 | #define IH_OS_RTEMS 18 /* RTEMS */ |
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49 | #define IH_OS_ARTOS 19 /* ARTOS */ |
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50 | #define IH_OS_UNITY 20 /* Unity OS */ |
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51 | |||
52 | /* |
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53 | * CPU Architecture Codes (supported by Linux) |
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54 | */ |
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55 | #define IH_CPU_INVALID 0 /* Invalid CPU */ |
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56 | #define IH_CPU_ALPHA 1 /* Alpha */ |
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57 | #define IH_CPU_ARM 2 /* ARM */ |
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58 | #define IH_CPU_I386 3 /* Intel x86 */ |
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59 | #define IH_CPU_IA64 4 /* IA64 */ |
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60 | #define IH_CPU_MIPS 5 /* MIPS */ |
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61 | #define IH_CPU_MIPS64 6 /* MIPS 64 Bit */ |
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62 | #define IH_CPU_PPC 7 /* PowerPC */ |
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63 | #define IH_CPU_S390 8 /* IBM S390 */ |
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64 | #define IH_CPU_SH 9 /* SuperH */ |
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65 | #define IH_CPU_SPARC 10 /* Sparc */ |
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66 | #define IH_CPU_SPARC64 11 /* Sparc 64 Bit */ |
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67 | #define IH_CPU_M68K 12 /* M68K */ |
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68 | #define IH_CPU_NIOS 13 /* Nios-32 */ |
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69 | #define IH_CPU_MICROBLAZE 14 /* MicroBlaze */ |
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70 | #define IH_CPU_NIOS2 15 /* Nios-II */ |
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71 | |||
72 | /* |
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73 | * Image Types |
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74 | * |
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75 | * "Standalone Programs" are directly runnable in the environment |
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76 | * provided by U-Boot; it is expected that (if they behave |
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77 | * well) you can continue to work in U-Boot after return from |
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78 | * the Standalone Program. |
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79 | * "OS Kernel Images" are usually images of some Embedded OS which |
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80 | * will take over control completely. Usually these programs |
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81 | * will install their own set of exception handlers, device |
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82 | * drivers, set up the MMU, etc. - this means, that you cannot |
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83 | * expect to re-enter U-Boot except by resetting the CPU. |
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84 | * "RAMDisk Images" are more or less just data blocks, and their |
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85 | * parameters (address, size) are passed to an OS kernel that is |
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86 | * being started. |
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87 | * "Multi-File Images" contain several images, typically an OS |
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88 | * (Linux) kernel image and one or more data images like |
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89 | * RAMDisks. This construct is useful for instance when you want |
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90 | * to boot over the network using BOOTP etc., where the boot |
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91 | * server provides just a single image file, but you want to get |
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92 | * for instance an OS kernel and a RAMDisk image. |
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93 | * |
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94 | * "Multi-File Images" start with a list of image sizes, each |
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95 | * image size (in bytes) specified by an "uint32_t" in network |
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96 | * byte order. This list is terminated by an "(uint32_t)0". |
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97 | * Immediately after the terminating 0 follow the images, one by |
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98 | * one, all aligned on "uint32_t" boundaries (size rounded up to |
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99 | * a multiple of 4 bytes - except for the last file). |
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100 | * |
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101 | * "Firmware Images" are binary images containing firmware (like |
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102 | * U-Boot or FPGA images) which usually will be programmed to |
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103 | * flash memory. |
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104 | * |
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105 | * "Script files" are command sequences that will be executed by |
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106 | * U-Boot's command interpreter; this feature is especially |
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107 | * useful when you configure U-Boot to use a real shell (hush) |
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108 | * as command interpreter (=> Shell Scripts). |
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109 | */ |
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110 | |||
111 | #define IH_TYPE_INVALID 0 /* Invalid Image */ |
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112 | #define IH_TYPE_STANDALONE 1 /* Standalone Program */ |
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113 | #define IH_TYPE_KERNEL 2 /* OS Kernel Image */ |
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114 | #define IH_TYPE_RAMDISK 3 /* RAMDisk Image */ |
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115 | #define IH_TYPE_MULTI 4 /* Multi-File Image */ |
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116 | #define IH_TYPE_FIRMWARE 5 /* Firmware Image */ |
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117 | #define IH_TYPE_SCRIPT 6 /* Script file */ |
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118 | #define IH_TYPE_FILESYSTEM 7 /* Filesystem Image (any type) */ |
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119 | |||
120 | /* |
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121 | * Compression Types |
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122 | */ |
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123 | #define IH_COMP_NONE 0 /* No Compression Used */ |
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124 | #define IH_COMP_GZIP 1 /* gzip Compression Used */ |
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125 | #define IH_COMP_BZIP2 2 /* bzip2 Compression Used */ |
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126 | |||
127 | #define IH_MAGIC 0x27051956 /* Image Magic Number */ |
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128 | #define IH_NMLEN 32 /* Image Name Length */ |
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129 | |||
130 | #define IH_NAMEMAGIC 0x86680001 /* Name Magic Number */ |
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131 | #define IH_SIZEMAX 5800000 /* Max image size */ |
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132 | /* |
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133 | * all data in network byte order (aka natural aka bigendian) |
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134 | */ |
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135 | |||
136 | typedef struct image_header { |
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137 | uint32_t ih_magic; /* Image Header Magic Number */ |
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138 | uint32_t ih_hcrc; /* Image Header CRC Checksum */ |
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139 | uint32_t ih_time; /* Image Creation Timestamp */ |
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140 | uint32_t ih_size; /* Image Data Size */ |
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141 | uint32_t ih_load; /* Data Load Address */ |
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142 | uint32_t ih_ep; /* Entry Point Address */ |
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143 | uint32_t ih_dcrc; /* Image Data CRC Checksum */ |
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144 | uint8_t ih_os; /* Operating System */ |
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145 | uint8_t ih_arch; /* CPU architecture */ |
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146 | uint8_t ih_type; /* Image Type */ |
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147 | uint8_t ih_comp; /* Compression Type */ |
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148 | #ifdef NEW_IMAGE_HEADER |
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149 | uint32_t ih_namemagic; /* image name CRC */ |
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150 | uint8_t ih_name[IH_NMLEN-4]; /* image name */ |
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151 | #else |
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152 | uint8_t ih_name[IH_NMLEN]; /* Image Name */ |
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153 | #endif |
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154 | } image_header_t; |
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155 | |||
156 | |||
157 | #endif /* __IMAGE_H__ */ |