int8_t tdma_init (uint8_t mode, uint8_t chan, uint16_t my_mac)
{
tx_reserve = -1;
tdma_rx_failure_cnt = 0;
tdma_mode = mode;
tdma_tx_slots = 0;
sync_status=0;
tdma_slots_per_cycle = TDMA_DEFAULT_SLOTS_PER_CYCLE;
tdma_rx_pkt_signal = nrk_signal_create ();
if (tdma_rx_pkt_signal == NRK_ERROR) {
nrk_kprintf (PSTR ("TDMA ERROR: creating rx signal failed\r\n"));
nrk_kernel_error_add (NRK_SIGNAL_CREATE_ERROR, nrk_cur_task_TCB->task_ID);
return NRK_ERROR;
}
tdma_tx_pkt_done_signal = nrk_signal_create ();
if (tdma_tx_pkt_done_signal == NRK_ERROR) {
nrk_kprintf (PSTR ("TDMA ERROR: creating tx signal failed\r\n"));
nrk_kernel_error_add (NRK_SIGNAL_CREATE_ERROR, nrk_cur_task_TCB->task_ID);
return NRK_ERROR;
}
tdma_enable_signal = nrk_signal_create ();
if (tdma_enable_signal == NRK_ERROR) {
nrk_kprintf (PSTR ("TDMA ERROR: creating enable signal failed\r\n"));
nrk_kernel_error_add (NRK_SIGNAL_CREATE_ERROR, nrk_cur_task_TCB->task_ID);
return NRK_ERROR;
}
// Set the one main rx buffer
tdma_rx_pkt_set_buffer (tdma_rx_buf, TDMA_MAX_PKT_SIZE);
tdma_rx_buf_empty = 1;
tx_data_ready = 0;
// Setup the radio
rf_init (&tdma_rfRxInfo, chan, 0xffff, my_mac);
tdma_chan = chan;
tdma_my_mac = my_mac;
//FASTSPI_SETREG (CC2420_RSSI, 0xE580); // CCA THR=-25
//FASTSPI_SETREG (CC2420_TXCTRL, 0x80FF); // TX TURNAROUND = 128 us
//FASTSPI_SETREG (CC2420_RXCTRL1, 0x0A56);
// default cca thresh of -45
rf_set_cca_thresh (-45);
asm volatile ("":::"memory");
tdma_running = 1;
tdma_is_enabled = 1;
return NRK_OK;
}
int8_t bmac_init (uint8_t chan)
{
bmac_running=0;
tx_reserve=-1;
cca_active=true;
rx_failure_cnt=0;
#ifdef NRK_SW_WDT
#ifdef BMAC_SW_WDT_ID
_bmac_check_period.secs=30;
_bmac_check_period.nano_secs=0;
nrk_sw_wdt_init(BMAC_SW_WDT_ID, &_bmac_check_period, NULL );
nrk_sw_wdt_start(BMAC_SW_WDT_ID);
#endif
#endif
_bmac_check_period.secs=0;
_bmac_check_period.nano_secs=BMAC_DEFAULT_CHECK_RATE_MS*NANOS_PER_MS;
// SIGNAL
/* bmac_rx_pkt_signal=nrk_signal_create();
if(bmac_rx_pkt_signal==NRK_ERROR)
{
printf("BMAC ERROR: creating rx signal failed\r\n");
// nrk_kernel_error_add(NRK_SIGNAL_CREATE_ERROR,nrk_cur_task_TCB->task_ID); // commented out by madhur: error implementation has not been checked yet
return NRK_ERROR;
}
*/ bmac_tx_pkt_done_signal=nrk_signal_create();
if(bmac_tx_pkt_done_signal==NRK_ERROR)
{
printf("BMAC ERROR: creating tx signal failed\r\n");
//nrk_kernel_error_add(NRK_SIGNAL_CREATE_ERROR,nrk_cur_task_TCB->task_ID);
return NRK_ERROR;
}
bmac_enable_signal=nrk_signal_create();
if(bmac_enable_signal==NRK_ERROR)
{
printf("BMAC ERROR: creating enable signal failed\r\n");
// nrk_kernel_error_add(NRK_SIGNAL_CREATE_ERROR,nrk_cur_task_TCB->task_ID);
return NRK_ERROR;
}
tx_data_ready=0;
// Set the one main rx buffer
rx_buf_empty=0;
bmac_rfRxInfo.pPayload = NULL;
bmac_rfRxInfo.max_length = 0;
// Setup the MRF24J40 chip
rf_init (&bmac_rfRxInfo, chan, 0xffff, 0);
g_chan=chan;
/*
FASTSPI_SETREG(CC2420_RSSI, 0xE580); // CCA THR=-25
FASTSPI_SETREG(CC2420_TXCTRL, 0x80FF); // TX TURNAROUND = 128 us
FASTSPI_SETREG(CC2420_RXCTRL1, 0x0A56);
*/
// default cca thresh of -45
//rf_set_cca_thresh(-45);
rf_set_cca_thresh(-45);
// Disable checking address field
rf_addr_decode_disable();
bmac_running=1;
is_enabled=1;
return NRK_OK;
}
int8_t bmac_set_cca_thresh(int8_t thresh)
{
rf_set_cca_thresh(thresh);
return NRK_OK;
}
int8_t bmac_init (uint8_t chan)
{
bmac_running = 0;
tx_reserve = -1;
cca_active = true;
rx_failure_cnt = 0;
#ifdef NRK_SW_WDT
#ifdef BMAC_SW_WDT_ID
_bmac_check_period.secs = 30;
_bmac_check_period.nano_secs = 0;
nrk_sw_wdt_init (BMAC_SW_WDT_ID, &_bmac_check_period, NULL);
nrk_sw_wdt_start (BMAC_SW_WDT_ID);
#endif
#endif
_bmac_check_period.secs = 0;
_bmac_check_period.nano_secs = BMAC_DEFAULT_CHECK_RATE_MS * NANOS_PER_MS;
bmac_rx_pkt_signal = nrk_signal_create ();
if (bmac_rx_pkt_signal == NRK_ERROR) {
nrk_kprintf (PSTR ("BMAC ERROR: creating rx signal failed\r\n"));
nrk_kernel_error_add (NRK_SIGNAL_CREATE_ERROR, nrk_cur_task_TCB->task_ID);
return NRK_ERROR;
}
bmac_tx_pkt_done_signal = nrk_signal_create ();
if (bmac_tx_pkt_done_signal == NRK_ERROR) {
nrk_kprintf (PSTR ("BMAC ERROR: creating tx signal failed\r\n"));
nrk_kernel_error_add (NRK_SIGNAL_CREATE_ERROR, nrk_cur_task_TCB->task_ID);
return NRK_ERROR;
}
bmac_enable_signal = nrk_signal_create ();
if (bmac_enable_signal == NRK_ERROR) {
nrk_kprintf (PSTR ("BMAC ERROR: creating enable signal failed\r\n"));
nrk_kernel_error_add (NRK_SIGNAL_CREATE_ERROR, nrk_cur_task_TCB->task_ID);
return NRK_ERROR;
}
tx_data_ready = 0;
// Set the one main rx buffer
rx_buf_empty = 0;
bmac_rfRxInfo.pPayload = NULL;
bmac_rfRxInfo.max_length = 0;
// Setup the cc2420 chip
rf_power_up ();
rf_init (&bmac_rfRxInfo, chan, 0xffff, 0);
g_chan = chan;
// FASTSPI_SETREG(CC2420_RSSI, 0xE580); // CCA THR=-25
// FASTSPI_SETREG(CC2420_TXCTRL, 0x80FF); // TX TURNAROUND = 128 us
// FASTSPI_SETREG(CC2420_RXCTRL1, 0x0A56);
// default cca thresh of -45
//rf_set_cca_thresh(-45);
rf_set_cca_thresh (0x0);
bmac_running = 1;
is_enabled = 1;
return NRK_OK;
}