property/secure_efuse.c

   1 /*
   2  * Copyright (C) 2014 Spreadtrum Communications Inc.
   3  *
   4  * This program is free software; you can redistribute it and/or
   5  * modify it under the terms of the GNU General Public License
   6  * as published by the Free Software Foundation; either version 2
   7  * of the License, or (at your option) any later version.
   8  *
   9  * This program is distributed in the hope that it will be useful,
  10  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  12  * GNU General Public License for more details.
  13  *
  14  */
  15
  16
  17 #include "efuse_operate.h"
  18 #include "secure_efuse.h"
  19
  20 extern int get_spl_hash(void* hash_data);
  21
  22 int secure_efuse_program(void){
  23
  24   int ret = 0;
  25   //printf("secure efuse ------------------------\n");
  26   ret = calc_sha1_write_efuse();
  27   if(ret)
  28     return SHA1_ERR;
  29   return PROG_OK;
  30 }
  31
  32 int calc_sha1_write_efuse(void){
  33
  34   union sha_1{
  35     unsigned char sha1_char[24];
  36     unsigned int  sha1_int[6];
  37   }sha1;
  38
  39   char sha1_string[41];
  40   int ret = 0;
  41   memset(&sha1,   0x0, 24);
  42   memset(sha1_string,   0x0, 41);
  43 //  -----   generate SHA1 key   -----
  44   get_spl_hash((void*)sha1.sha1_char);
  45   /*sprintf(sha1_string,"%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x%02x", sha1.sha1_char[0],
  46                                 sha1.sha1_char[1],
  47                                 sha1.sha1_char[2],
  48                                 sha1.sha1_char[3],
  49                                 sha1.sha1_char[4],
  50                                 sha1.sha1_char[5],
  51                                 sha1.sha1_char[6],
  52                                 sha1.sha1_char[7],
  53                                 sha1.sha1_char[8],
  54                                 sha1.sha1_char[9],
  55                                 sha1.sha1_char[10],
  56                                 sha1.sha1_char[11],
  57                                 sha1.sha1_char[12],
  58                                 sha1.sha1_char[13],
  59                                 sha1.sha1_char[14],
  60                                 sha1.sha1_char[15],
  61                                 sha1.sha1_char[16],
  62                                 sha1.sha1_char[17],
  63                                 sha1.sha1_char[18],
  64                                 sha1.sha1_char[19]);*/
  65   sprintf(sha1_string,"%08x%08x%08x%08x%08x", sha1.sha1_int[0],
  66                                 sha1.sha1_int[1],
  67                                 sha1.sha1_int[2],
  68                                 sha1.sha1_int[3],
  69                                 sha1.sha1_int[4]);
  70 //  -----   write SHA1 key Efuse   -----
  71   ret = efuse_hash_write_1(sha1_string, 40);
  72   if(ret < 0){
  73     printf("sha1 efuse write Error [%d]\n", ret);
  74     return SHA1_ERR;
  75   }
  76 //
  77   if ( efuse_secure_is_enabled() ){
  78     printf("enabled\n");
  79     return PROG_OK;
  80   }
  81   efuse_secure_enable();
  82 /*
  83   char sha2_string[41];
  84   memset(sha2_string,   0x0, 41);
  85   efuse_hash_read_1(sha2_string, 40);
  86   printf("~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~\n~~~~~~~[%s]\n~~~~~~~~~~~~~~~~~~~~~~~\n", sha2_string);
  87 */
  88   return PROG_OK;
  89 }
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