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| Rev | Author | Line No. | Line |
|---|---|---|---|
| 1702 | - | 1 | /* |
| 2 | * Simple tool to dump the AP_Param contents from an EEPROM dump |
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| 3 | * Andrew Tridgell February 2012 |
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| 4 | */ |
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| 5 | #include <stdio.h> |
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| 6 | #include <stdlib.h> |
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| 7 | #include <stdint.h> |
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| 8 | |||
| 9 | uint8_t eeprom[0x1000]; |
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| 10 | |||
| 11 | #pragma pack(1) |
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| 12 | |||
| 13 | struct EEPROM_header { |
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| 14 | uint8_t magic[2]; |
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| 15 | uint8_t revision; |
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| 16 | uint8_t spare; |
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| 17 | }; |
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| 18 | |||
| 19 | static const uint16_t k_EEPROM_magic0 = 0x50; |
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| 20 | static const uint16_t k_EEPROM_magic1 = 0x41; |
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| 21 | static const uint16_t k_EEPROM_revision = 5; |
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| 22 | |||
| 23 | enum ap_var_type { |
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| 24 | AP_PARAM_NONE = 0, |
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| 25 | AP_PARAM_INT8, |
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| 26 | AP_PARAM_INT16, |
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| 27 | AP_PARAM_INT32, |
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| 28 | AP_PARAM_FLOAT, |
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| 29 | AP_PARAM_VECTOR3F, |
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| 30 | AP_PARAM_VECTOR6F, |
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| 31 | AP_PARAM_MATRIX3F, |
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| 32 | AP_PARAM_GROUP |
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| 33 | }; |
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| 34 | |||
| 35 | static const char *type_names[8] = { |
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| 36 | "NONE", "INT8", "INT16", "INT32", "FLOAT", "VECTOR3F", "MATRIX6F", "GROUP" |
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| 37 | }; |
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| 38 | |||
| 39 | struct Param_header { |
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| 40 | uint8_t key; |
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| 41 | uint8_t group_element; |
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| 42 | uint8_t type; |
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| 43 | }; |
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| 44 | |||
| 45 | |||
| 46 | static const uint8_t _sentinal_key = 0xFF; |
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| 47 | static const uint8_t _sentinal_type = 0xFF; |
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| 48 | static const uint8_t _sentinal_group = 0xFF; |
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| 49 | |||
| 50 | static uint8_t type_size(enum ap_var_type type) |
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| 51 | { |
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| 52 | switch (type) { |
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| 53 | case AP_PARAM_NONE: |
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| 54 | case AP_PARAM_GROUP: |
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| 55 | return 0; |
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| 56 | case AP_PARAM_INT8: |
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| 57 | return 1; |
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| 58 | case AP_PARAM_INT16: |
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| 59 | return 2; |
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| 60 | case AP_PARAM_INT32: |
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| 61 | return 4; |
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| 62 | case AP_PARAM_FLOAT: |
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| 63 | return 4; |
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| 64 | case AP_PARAM_VECTOR3F: |
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| 65 | return 3*4; |
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| 66 | case AP_PARAM_VECTOR6F: |
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| 67 | return 6*4; |
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| 68 | case AP_PARAM_MATRIX3F: |
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| 69 | return 3*3*4; |
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| 70 | } |
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| 71 | printf("unknown type %u\n", type); |
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| 72 | return 0; |
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| 73 | } |
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| 74 | |||
| 75 | static void |
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| 76 | fail(const char *why) |
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| 77 | { |
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| 78 | fprintf(stderr, "ERROR: %s\n", why); |
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| 79 | exit(1); |
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| 80 | } |
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| 81 | |||
| 82 | int |
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| 83 | main(int argc, char *argv[]) |
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| 84 | { |
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| 85 | FILE *fp; |
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| 86 | struct EEPROM_header *header; |
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| 87 | struct Param_header *var; |
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| 88 | unsigned index; |
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| 89 | unsigned i; |
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| 90 | |||
| 91 | if (argc != 2) { |
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| 92 | fail("missing EEPROM file name"); |
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| 93 | } |
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| 94 | if (NULL == (fp = fopen(argv[1], "rb"))) { |
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| 95 | fail("can't open EEPROM file"); |
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| 96 | } |
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| 97 | if (1 != fread(eeprom, sizeof(eeprom), 1, fp)) { |
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| 98 | fail("can't read EEPROM file"); |
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| 99 | } |
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| 100 | fclose(fp); |
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| 101 | |||
| 102 | header = (struct EEPROM_header *)&eeprom[0]; |
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| 103 | if (header->magic[0] != k_EEPROM_magic0 || |
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| 104 | header->magic[1] != k_EEPROM_magic1) { |
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| 105 | fail("bad magic in EEPROM file"); |
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| 106 | } |
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| 107 | if (header->revision != k_EEPROM_revision) { |
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| 108 | fail("unsupported EEPROM format revision"); |
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| 109 | } |
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| 110 | printf("Header OK\n"); |
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| 111 | |||
| 112 | index = sizeof(*header); |
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| 113 | for (;;) { |
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| 114 | uint8_t size; |
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| 115 | var = (struct Param_header *)&eeprom[index]; |
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| 116 | if (var->key == _sentinal_key || |
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| 117 | var->group_element == _sentinal_group || |
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| 118 | var->type == _sentinal_type) { |
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| 119 | printf("end sentinel at %u\n", index); |
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| 120 | break; |
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| 121 | } |
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| 122 | size = type_size(var->type); |
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| 123 | printf("%04x: type %u (%s) key %u group_element %u size %d value ", |
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| 124 | index, var->type, type_names[var->type], var->key, var->group_element, size); |
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| 125 | index += sizeof(*var); |
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| 126 | switch (var->type) { |
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| 127 | case AP_PARAM_INT8: |
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| 128 | printf("%d\n", (int)*(int8_t *)&eeprom[index]); |
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| 129 | break; |
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| 130 | case AP_PARAM_INT16: |
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| 131 | printf("%d\n", (int)*(int16_t *)&eeprom[index]); |
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| 132 | break; |
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| 133 | case AP_PARAM_INT32: |
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| 134 | printf("%d\n", (int)*(int32_t *)&eeprom[index]); |
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| 135 | break; |
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| 136 | case AP_PARAM_FLOAT: |
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| 137 | printf("%f\n", *(float *)&eeprom[index]); |
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| 138 | break; |
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| 139 | case AP_PARAM_VECTOR3F: |
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| 140 | printf("%f %f %f\n", |
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| 141 | *(float *)&eeprom[index], |
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| 142 | *(float *)&eeprom[index+4], |
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| 143 | *(float *)&eeprom[index+8]); |
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| 144 | break; |
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| 145 | case AP_PARAM_VECTOR6F: |
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| 146 | printf("%f %f %f %f %f %f\n", |
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| 147 | *(float *)&eeprom[index], |
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| 148 | *(float *)&eeprom[index+4], |
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| 149 | *(float *)&eeprom[index+8], |
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| 150 | *(float *)&eeprom[index+12], |
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| 151 | *(float *)&eeprom[index+16], |
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| 152 | *(float *)&eeprom[index+20]); |
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| 153 | break; |
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| 154 | case AP_PARAM_MATRIX3F: |
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| 155 | printf("%f %f %f %f %f %f %f %f %f\n", |
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| 156 | *(float *)&eeprom[index], |
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| 157 | *(float *)&eeprom[index+4], |
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| 158 | *(float *)&eeprom[index+8], |
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| 159 | *(float *)&eeprom[index+12], |
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| 160 | *(float *)&eeprom[index+16], |
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| 161 | *(float *)&eeprom[index+20], |
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| 162 | *(float *)&eeprom[index+24], |
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| 163 | *(float *)&eeprom[index+28], |
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| 164 | *(float *)&eeprom[index+32]); |
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| 165 | break; |
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| 166 | default: |
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| 167 | printf("NONE\n"); |
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| 168 | break; |
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| 169 | } |
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| 170 | for (i = 0; i < size; i++) { |
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| 171 | printf(" %02x", eeprom[index + i]); |
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| 172 | } |
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| 173 | printf("\n"); |
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| 174 | index += size; |
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| 175 | if (index >= sizeof(eeprom)) { |
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| 176 | fflush(stdout); |
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| 177 | fail("missing end sentinel"); |
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| 178 | } |
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| 179 | } |
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| 180 | return 0; |
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| 181 | } |