void
PtTransmit (BRFPacket * pkg, unsigned char broadcast)
{
int i;
static BRFPacket backup;
if (TX_COMMAND_RETRIES > 1)
backup = *pkg;
if (broadcast)
PtUpdateWmcuId (pdTRUE);
for (i = 0; i < TX_COMMAND_RETRIES; i++)
{
if (i)
*pkg = backup;
vTaskDelay (((RndNumber () % 5) / portTICK_RATE_MS));
PtInternalTransmit (pkg);
}
if (broadcast)
{
vTaskDelay ((3 + (RndNumber () % 5) / portTICK_RATE_MS));
PtUpdateWmcuId (pdFALSE);
}
}
static void
vnRFtaskRxTx (void *parameter)
{
u_int32_t t;
u_int8_t status;
portTickType last_ticks = 0, jam_ticks = 0;
if (!PtInitNRF ())
return;
for (;;)
{
// sprintf(msg, "Senden ...\n");
/* check if TX strength changed */
if (nrf_powerlevel_current != nrf_powerlevel_last)
{
nRFAPI_SetTxPower (nrf_powerlevel_current);
nrf_powerlevel_last = nrf_powerlevel_current;
}
status = nRFAPI_GetFifoStatus ();
/* living in a paranoid world ;-) */
if (status & FIFO_TX_FULL)
nRFAPI_FlushTX ();
/* transmit current lamp value */ // schickt regelmässig ein Packet broadcast
if (env.e.mcu_id && ((xTaskGetTickCount () - last_ticks) > jam_ticks))
{
memset (&rfpkg, 0, sizeof (rfpkg));
rfpkg.cmd = RF_CMD_SET_VALUES;
rfpkg.wmcu_id = env.e.mcu_id;
rfpkg.mac = 0xffff; /* send to all MACs */
for (t = 0; t < RF_PAYLOAD_SIZE; t++)
rfpkg.payload[t] =
(last_lamp_val[t * 2] & 0xf) |
(last_lamp_val[(t * 2) + 1] << 4);
// random delay to avoid collisions
PtInternalTransmit (&rfpkg);
// prepare next jam transmission
last_ticks = xTaskGetTickCount ();
jam_ticks =
(RndNumber () % (jam_density_ms * 2)) / portTICK_RATE_MS;
}
vTaskDelay (5 / portTICK_RATE_MS);
/* did I already mention the paranoid world thing? */
nRFAPI_ClearIRQ (MASK_IRQ_FLAGS);
}
}
static void
vnRFtaskRxTx (void *parameter)
{
u_int32_t crc, t;
u_int8_t status;
portTickType last_ticks = 0, jam_ticks = 0;
if (!PtInitNRF ())
return;
for (;;)
{
/* check if TX strength changed */
if (nrf_powerlevel_current != nrf_powerlevel_last)
{
nRFAPI_SetTxPower (nrf_powerlevel_current);
nrf_powerlevel_last = nrf_powerlevel_current;
}
status = nRFAPI_GetFifoStatus ();
/* living in a paranoid world ;-) */
if (status & FIFO_TX_FULL)
nRFAPI_FlushTX ();
/* check for received packets */
if ((status & FIFO_RX_FULL) || nRFCMD_WaitRx (0))
{
vLedSetGreen (0);
do
{
/* read packet from nRF chip */
nRFCMD_RegReadBuf (RD_RX_PLOAD, (unsigned char *) &rfpkg,
sizeof (rfpkg));
/* adjust byte order and decode */
shuffle_tx_byteorder ((unsigned long *) &rfpkg,
sizeof (rfpkg) / sizeof (long));
xxtea_decode ((long *) &rfpkg, sizeof (rfpkg) / sizeof (long));
shuffle_tx_byteorder ((unsigned long *) &rfpkg,
sizeof (rfpkg) / sizeof (long));
/* verify the crc checksum */
crc =
crc32 ((unsigned char *) &rfpkg,
sizeof (rfpkg) - sizeof (rfpkg.crc));
if ((crc == PtSwapLong (rfpkg.crc)) &&
(rfpkg.wmcu_id == env.e.mcu_id) &&
(rfpkg.cmd & RF_PKG_SENT_BY_DIMMER))
{
//debug_printf("dumping received packet:\n");
//hex_dump((unsigned char *) &rfpkg, 0, sizeof(rfpkg));
b_parse_rfrx_pkg (&rfpkg);
rf_rec++;
}
}
while ((nRFAPI_GetFifoStatus () & FIFO_RX_EMPTY) == 0);
vLedSetGreen (1);
}
/* transmit current lamp value */
if (env.e.mcu_id && ((xTaskGetTickCount () - last_ticks) > jam_ticks))
{
memset (&rfpkg, 0, sizeof (rfpkg));
rfpkg.cmd = RF_CMD_SET_VALUES;
rfpkg.wmcu_id = env.e.mcu_id;
rfpkg.mac = 0xffff; /* send to all MACs */
for (t = 0; t < RF_PAYLOAD_SIZE; t++)
rfpkg.payload[t] =
(last_lamp_val[t * 2] & 0xf) |
(last_lamp_val[(t * 2) + 1] << 4);
// random delay to avoid collisions
PtInternalTransmit (&rfpkg);
// prepare next jam transmission
last_ticks = xTaskGetTickCount ();
jam_ticks =
(RndNumber () % (jam_density_ms * 2)) / portTICK_RATE_MS;
}
vTaskDelay (5 / portTICK_RATE_MS);
/* did I already mention the paranoid world thing? */
nRFAPI_ClearIRQ (MASK_IRQ_FLAGS);
}
}
