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gazell/nrf24le1/gzp_host_le1.c

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00001 /* Copyright (c) 2009 Nordic Semiconductor. All Rights Reserved.
00002  *
00003  * The information contained herein is confidential property of Nordic 
00004  * Semiconductor ASA.Terms and conditions of usage are described in detail 
00005  * in NORDIC SEMICONDUCTOR STANDARD SOFTWARE LICENSE AGREEMENT. 
00006  *
00007  * Licensees are granted free, non-transferable use of the information. NO
00008  * WARRENTY of ANY KIND is provided. This heading must NOT be removed from
00009  * the file.
00010  *              
00011  * $LastChangedRevision: 133 $
00012  */
00013  
00019 #include "nrf24le1.h"
00020 #include <gzp.h>
00021 #include "hal_rng.h"
00022 #include "hal_flash.h"
00023 #include "memdefs.h"
00024 
00025 __no_init xdata uint8_t gzp_session_token[GZP_SESSION_TOKEN_LENGTH];
00026 __no_init xdata uint8_t gzp_dyn_key[GZP_DYN_KEY_LENGTH];
00027 
00028 void gzp_host_chip_id_read(uint8_t *dst, uint8_t n)
00029 {
00030   uint8_t i;
00031   
00032   if(hal_flash_byte_read(GZP_PARAMS_STORAGE_ADR + GZP_HOST_ID_LENGTH + 1) == 0xff)
00033   {
00034     hal_flash_byte_write((GZP_PARAMS_STORAGE_ADR + GZP_HOST_ID_LENGTH + 1), 0x00);
00035     hal_rng_power_up(true);
00036     for(i = 0; i < n; i++) 
00037     {
00038       while(!hal_rng_data_ready())
00039       ;
00040       hal_flash_byte_write((GZP_PARAMS_STORAGE_ADR + GZP_HOST_ID_LENGTH + 2 + i),  hal_rng_read());
00041     }
00042     hal_rng_power_up(false);
00043   }
00044   
00045   for(i = 0; i < n; i++) 
00046   {
00047     *(dst++) = hal_flash_byte_read((GZP_PARAMS_STORAGE_ADR + GZP_HOST_ID_LENGTH + 2 + i));
00048   }
00049 }

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