/*----------------------------------------------------------------------------*
* NAME
* appSetRandomAddress
*
* DESCRIPTION
* This function generates a non-resolvable private address and sets it
* to the firmware.
*
* RETURNS
* Nothing.
*
*----------------------------------------------------------------------------*/
static void appSetRandomAddress(void)
{
BD_ADDR_T addr;
/* "completely" random MAC addresses by default: */
for(;;)
{
uint32 now = TimeGet32();
/* Random32() is just two of them, no use */
uint32 rnd = Random16();
addr.uap = 0xff & (rnd ^ now);
/* No sub-part may be zero or all-1s */
if ( 0 == addr.uap || 0xff == addr.uap ) continue;
addr.lap = 0xffffff & ((now >> 8) ^ (73 * rnd));
if ( 0 == addr.lap || 0xffffff == addr.lap ) continue;
addr.nap = 0x3fff & rnd;
if ( 0 == addr.nap || 0x3fff == addr.nap ) continue;
break;
}
/* Set it to actually be an acceptable random address */
addr.nap &= ~BD_ADDR_NAP_RANDOM_TYPE_MASK;
addr.nap |= BD_ADDR_NAP_RANDOM_TYPE_NONRESOLV;
GapSetRandomAddress(&addr);
}
/*----------------------------------------------------------------------------*
* NAME
* appRandomDelay
*
* DESCRIPTION
* This function generates a random delay from 0 to 10ms in steps of 50us.
*
* RETURNS
* Returns delay in Micro Seconds.
*
*---------------------------------------------------------------------------*/
static uint16 appRandomDelay(void)
{
uint16 rand_num = Random16();
rand_num = rand_num%201;
return (rand_num * 50);
}
uint32_t Random32(void)
{
uint16_t output = Random16() << 16 | Random16();
return output;
}
