FreeCalypso > hg > freecalypso-tools

annotate loadtools/flprotreg.c @ 1012:11391cb6bdc0

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patch from fixeria: doc change from SE K2x0 to K2xx Since their discovery in late 2022, Sony Ericsson K200 and K220 phones were collectively referred to as SE K2x0 in FreeCalypso documentation. However, now that SE K205 has been discovered as yet another member of the same family (same PCBA in different case), it makes more sense to refer to the whole family as SE K2xx.
author Mychaela Falconia <falcon@freecalypso.org>
date Mon, 23 Sep 2024 12:23:20 +0000
parents cf7bd5e705ed
children
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712
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1 /*
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2 * This module implements commands dealing with Intel flash protection
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3 * register, which holds the IMEI on Compal phones.
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4 */
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5
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6 #include <sys/types.h>
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7 #include <stdio.h>
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8 #include <stdint.h>
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9 #include <string.h>
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10 #include <strings.h>
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11 #include <stdlib.h>
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12 #include "flash.h"
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13
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14 extern struct flash_bank_info flash_bank_info[2];
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15
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16 flashcmd_protreg(argc, argv, bank)
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17 char **argv;
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18 {
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19 struct flash_bank_info *bi;
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20 uint16_t data[9];
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21 int rc;
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22
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23 if (argc > 2) {
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24 fprintf(stderr, "error: too many arguments\n");
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25 return(-1);
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26 }
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27 if (flash_detect(bank, 0) < 0)
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28 return(-1);
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29 bi = flash_bank_info + bank;
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30 rc = bi->ops->read_prot_reg(bi, data);
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31 if (rc)
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32 return(rc);
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33 printf("Lock word: %04X\n", data[0]);
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34 printf("Factory words: %04X %04X %04X %04X\n", data[1], data[2],
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35 data[3], data[4]);
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36 printf("User words: %04X %04X %04X %04X\n", data[5], data[6], data[7],
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37 data[8]);
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38 return(0);
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39 }
713
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40
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41 static int
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42 compute_cd(digits)
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43 u_char *digits;
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44 {
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45 int i, dig, sum;
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46
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47 sum = 0;
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48 for (i = 0; i < 14; i++) {
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49 dig = digits[i];
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50 if (i & 1) {
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51 dig *= 2;
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52 if (dig > 9)
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53 dig -= 9;
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54 }
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55 sum += dig;
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56 }
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57 dig = sum % 10;
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58 if (dig)
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59 dig = 10 - dig;
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60 return dig;
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61 }
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62
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63 static void
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64 format_imei(digits, strout)
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65 u_char *digits;
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66 char *strout;
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67 {
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68 int i;
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69 char *dp;
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70
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71 dp = strout;
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72 for (i = 0; i < 15; i++) {
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73 if (i == 8 || i == 14)
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74 *dp++ = '-';
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75 *dp++ = digits[i] + '0';
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76 }
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77 *dp = '\0';
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78 }
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79
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80 flashcmd_compal_imei(argc, argv, bank)
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81 char **argv;
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82 {
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83 struct flash_bank_info *bi;
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84 uint16_t data[9];
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85 u_char nibbles[16], *dp;
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86 char imei_str[18];
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87 int rc, i, j;
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88 FILE *of;
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89
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90 if (argc > 3) {
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91 fprintf(stderr, "error: too many arguments\n");
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92 return(-1);
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93 }
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94 if (flash_detect(bank, 0) < 0)
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95 return(-1);
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96 bi = flash_bank_info + bank;
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97 rc = bi->ops->read_prot_reg(bi, data);
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98 if (rc)
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99 return(rc);
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100 dp = nibbles;
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101 for (i = 0; i < 4; i++) {
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102 rc = data[i + 5];
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103 for (j = 0; j < 4; j++) {
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104 *dp++ = rc & 0xF;
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105 rc >>= 4;
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106 }
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107 }
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108 for (i = 1; i < 16; i++) {
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109 if (nibbles[i] > 9) {
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110 bad_imei: fprintf(stderr, "No Compal IMEI found\n");
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111 return(-1);
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112 }
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113 }
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114 if (compute_cd(nibbles+1) != nibbles[15])
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115 goto bad_imei;
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116 format_imei(nibbles+1, imei_str);
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117 puts(imei_str);
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118 if (argc < 3)
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119 return(0);
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120 of = fopen(argv[2], "w");
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121 if (!of) {
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122 perror(argv[2]);
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123 return(-1);
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124 }
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125 fprintf(of, "%s\n", imei_str);
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126 fclose(of);
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127 printf("Saved to %s\n", argv[2]);
cf7bd5e705ed fc-loadtool: flash compal-imei command implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 712
diff changeset
128 return(0);
cf7bd5e705ed fc-loadtool: flash compal-imei command implemented
Mychaela Falconia <falcon@freecalypso.org>
parents: 712
diff changeset
129 }