nrf_gzp_host_nrf5x.c 2.8 KB

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  1. /**
  2. * Copyright (c) 2009 - 2020, Nordic Semiconductor ASA
  3. *
  4. * All rights reserved.
  5. *
  6. * Redistribution and use in source and binary forms, with or without modification,
  7. * are permitted provided that the following conditions are met:
  8. *
  9. * 1. Redistributions of source code must retain the above copyright notice, this
  10. * list of conditions and the following disclaimer.
  11. *
  12. * 2. Redistributions in binary form, except as embedded into a Nordic
  13. * Semiconductor ASA integrated circuit in a product or a software update for
  14. * such product, must reproduce the above copyright notice, this list of
  15. * conditions and the following disclaimer in the documentation and/or other
  16. * materials provided with the distribution.
  17. *
  18. * 3. Neither the name of Nordic Semiconductor ASA nor the names of its
  19. * contributors may be used to endorse or promote products derived from this
  20. * software without specific prior written permission.
  21. *
  22. * 4. This software, with or without modification, must only be used with a
  23. * Nordic Semiconductor ASA integrated circuit.
  24. *
  25. * 5. Any software provided in binary form under this license must not be reverse
  26. * engineered, decompiled, modified and/or disassembled.
  27. *
  28. * THIS SOFTWARE IS PROVIDED BY NORDIC SEMICONDUCTOR ASA "AS IS" AND ANY EXPRESS
  29. * OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
  30. * OF MERCHANTABILITY, NONINFRINGEMENT, AND FITNESS FOR A PARTICULAR PURPOSE ARE
  31. * DISCLAIMED. IN NO EVENT SHALL NORDIC SEMICONDUCTOR ASA OR CONTRIBUTORS BE
  32. * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
  33. * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE
  34. * GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
  35. * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
  36. * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
  37. * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  38. *
  39. */
  40. #include "nrf_gzp.h"
  41. #include "nrf_nvmc.h"
  42. /**
  43. * @file
  44. * @brief Implementation of Gazell Pairing Library (gzp), nRF5x specific Host functions.
  45. * @defgroup gzp_source_host_nrf5x Gazell Pairing Host nRF5x specific implementation
  46. * @{
  47. * @ingroup gzp_04_source
  48. */
  49. void gzp_host_chip_id_read(uint8_t *dst, uint8_t n)
  50. {
  51. uint8_t i;
  52. uint8_t random_number;
  53. if ( *((uint8_t*)(GZP_PARAMS_STORAGE_ADR + GZP_HOST_ID_LENGTH + 1)) == 0xff)
  54. {
  55. nrf_nvmc_write_byte((GZP_PARAMS_STORAGE_ADR + GZP_HOST_ID_LENGTH + 1) , 0x00);
  56. for (i = 0; i < n; i++)
  57. {
  58. gzp_random_numbers_generate(&random_number, 1);
  59. nrf_nvmc_write_byte((GZP_PARAMS_STORAGE_ADR + GZP_HOST_ID_LENGTH + 2 + i) , random_number);
  60. }
  61. }
  62. for (i = 0; i < n; i++)
  63. {
  64. *(dst++) = *((uint8_t*)(GZP_PARAMS_STORAGE_ADR + GZP_HOST_ID_LENGTH + 2 + i));
  65. }
  66. }
  67. /** @} */