static void
PtInternalTransmit (BRFPacket * pkg)
{
/* update the sequence */
if (sequence_seed == 0)
return;
/* turn on redLED for TX indication */
vLedSetRed (1);
/* disable receive mode */
nRFCMD_CE (0);
/* wait in case a packet is currently received */
vTaskDelay (3 / portTICK_RATE_MS);
/* set TX mode */
nRFAPI_SetRxMode (0);
if (pkg->mac == 0xffff)
rf_sent_broadcast++;
else
rf_sent_unicast++;
pkg->sequence = sequence_seed + (xTaskGetTickCount () / portTICK_RATE_MS);
/* update crc */
pkg->crc =
PtSwapLong (crc32
((unsigned char *) pkg, sizeof (*pkg) - sizeof (pkg->crc)));
/* encrypt the data */
shuffle_tx_byteorder ((unsigned long *) pkg, sizeof (*pkg) / sizeof (long));
xxtea_encode ((long *) pkg, sizeof (*pkg) / sizeof (long));
shuffle_tx_byteorder ((unsigned long *) pkg, sizeof (*pkg) / sizeof (long));
/* upload data to nRF24L01 */
//hex_dump((unsigned char *) pkg, 0, sizeof(*pkg));
nRFAPI_TX ((unsigned char *) pkg, sizeof (*pkg));
/* transmit data */
nRFCMD_CE (1);
/* wait till packet is transmitted */
vTaskDelay (3 / portTICK_RATE_MS);
/* switch to RX mode again */
nRFAPI_SetRxMode (1);
/* turn off red TX indication LED */
vLedSetRed (0);
}
void
nrf_off (void)
{
/* disable RX mode */
nRFCMD_CE (0);
/* wait till RX is done */
pmu_sleep_ms (5);
/* switch to TX mode */
nRFAPI_SetRxMode (0);
}
static void
nRF_tx (uint8_t power)
{
/* encrypt data */
xxtea_encode (g_Beacon.block, XXTEA_BLOCK_COUNT, xxtea_key);
/* set TX power */
nRFAPI_SetTxPower (power & 0x3);
/* upload data to nRF24L01 */
nRFAPI_TX (g_Beacon.byte, sizeof (g_Beacon));
/* transmit data */
nRFCMD_CE (1);
/* wait for packet to be transmitted */
pmu_sleep_ms (2);
/* transmit data */
nRFCMD_CE (0);
}
void
init_authentication (void)
{
if (!nRFAPI_Init(DEFAULT_CHANNEL, broadcast_mac, sizeof (broadcast_mac), ENABLED_NRF_FEATURES))
return;
nRFAPI_SetPipeSizeRX (0, 16);
nRFAPI_SetTxPower (3);
nRFAPI_SetRxMode (1);
nRFCMD_CE (1);
xTaskCreate (authentication_task, (signed portCHAR *) "AUTHENTICATION",
TASK_NRF_STACK, NULL, TASK_NRF_PRIORITY, NULL);
}
void
nRFCMD_Shutdown (void)
{
/* disable RX mode */
nRFCMD_CE (0);
/* wait 5ms */
pmu_sleep_ms (5);
/* switch to TX mode */
nRFAPI_SetRxMode (0);
/* powering down */
nRFAPI_PowerDown ();
/* set pins to lowest power */
GPIOSetDir (RF_IRQ_CPU_PORT, RF_IRQ_CPU_PIN, 1);
GPIOSetValue (RF_IRQ_CPU_PORT, RF_IRQ_CPU_PIN, 0);
GPIOSetValue (CPU_CE_RF_PORT, CPU_CE_RF_PIN, 0);
GPIOSetValue (CPU_SWITCH_RF_PORT, CPU_SWITCH_RF_PIN, 0);
}
static inline s_int8_t
PtInitNRF (void)
{
if (!nRFAPI_Init (DEFAULT_CHANNEL, broadcast_mac,
sizeof (broadcast_mac), ENABLED_NRF_FEATURES))
return 0;
jam_density_ms = DEFAULT_JAM_DENSITY;
nrf_powerlevel_last = nrf_powerlevel_current = -1;
PtSetRfPowerLevel (NRF_POWERLEVEL_MAX);
nRFAPI_SetSizeMac (sizeof (wmcu_mac));
nRFAPI_SetPipeSizeRX (0, sizeof (rfpkg));
nRFAPI_SetPipeSizeRX (1, sizeof (rfpkg));
nRFAPI_PipesEnable (ERX_P0 | ERX_P1);
PtUpdateWmcuId (env.e.mcu_id == 0);
nRFAPI_SetRxMode (0);
nRFCMD_CE (0);
return 1;
}
