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 (;;)
{
status = nRFAPI_GetFifoStatus ();
/* 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))
{
// Sende Daten an die Zwischenschicht, um zu sehen ob was empfangen wird
memset(packet,0,100);
sprintf((portCHAR*)(packet+sizeof(struct packet_header) + 3), "Hallo ich höre!");
u_int8_t length = strlen( (portCHAR*)(packet+sizeof(struct packet_header) + 3) ) + 3 + 1;
usb_send_buffer_zero_copy(packet, length+sizeof(struct packet_header), NULL, NULL, portMAX_DELAY);
rf_rec++;
}
}
while ((nRFAPI_GetFifoStatus () & FIFO_RX_EMPTY) == 0);
vLedSetGreen (1);
}
vTaskDelay (5 / portTICK_RATE_MS);
/* did I already mention the paranoid world thing? */
nRFAPI_ClearIRQ (MASK_IRQ_FLAGS);
}
}
static void
authentication_task (void *parameter)
{
TBouncerEnvelope Bouncer;
(void) parameter;
memset (&authentication_state, 0, sizeof (authentication_state));
authentication_state.state = AUTHENTICATION_IDLE;
while(1) {
if (nRFCMD_WaitRx (10)) {
do {
vLedSetRed (1);
// read packet from nRF chip
nRFCMD_RegReadBuf (RD_RX_PLOAD, (unsigned char *) &Bouncer, sizeof (Bouncer));
process_message(&Bouncer);
vLedSetRed (0);
} while ((nRFAPI_GetFifoStatus () & FIFO_RX_EMPTY) == 0);
nRFAPI_GetFifoStatus();
}
nRFAPI_ClearIRQ (MASK_IRQ_FLAGS);
}
}
unsigned char recvBeacon( ob_data* block ) {
unsigned long crc;
unsigned char ret=0, status;
ob_switchRXMode();
if((AT91F_PIO_GetInput(AT91C_BASE_PIOA)&IRQ_PIN)==0)
{
portENTER_CRITICAL();
status=nRFAPI_GetStatus();
if(status&MASK_RX_DR_FLAG ) {
ret=nRFAPI_RX((unsigned char*)block, sizeof(ob_data) );
if(ret>0) {
// CRC Check
crc = env_crc16(block->payload, sizeof(block->payload) );
if(block->crc == swapshort(crc)) {
increment(ob_int_mgmt.rx_beacons, 4);
} else {
increment(ob_int_mgmt.fail_rx_beacons, 4);
ret=0;
}
}
nRFAPI_FlushRX();
}
nRFAPI_ClearIRQ(status);
portEXIT_CRITICAL ();
}
return ret;
}
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);
}
}
