/**
* @fn void Query_Current_Status(s_AppRadio * pRadio, PayloadFrame *payload)
*
* @brief This function checks if its the time to report the status. If yes,
* It populates the status information in its own node structure.
*
* @param pRadio an s_AppRadio structure pointer
* @param payload a PayloadFrame structure pointer
*/
void Query_Current_Status(s_AppRadio * pRadio, PayloadFrame *payload)
{
unsigned char i;
i = NodeIsInMyNet(payload->NodeID); // Check if the node is in my net
if (i) { // Load status bytes into my node structure
#ifdef INCLUDE_FRAMECOUNTER_STATUS
Nodes[i].FrameCounter++;
#endif
Nodes[0].LastRSSI = RadioReadRegister(pCurrentFrameworkRadio(pRadio), CCXXX_STAT_RSSI);
Nodes[i].LastRSSI = RadioLocal.RxFrameStruct.frameHeader[RSSI_RECEIVER];
#ifdef INCLUDE_LQI_STATUS
Nodes[i].LastLocalLQI = RadioReadRegister(pCurrentFrameworkRadio(pRadio), CCXXX_STAT_LQI) & 0x7F;
Nodes[i].LastRemoteLQI = RadioLocal.RxFrameStruct.frameHeader[LQI_RECEIVER] & 0x7F;
#endif
#ifdef INCLUDE_FREQOFF_STATUS
Nodes[i].LastLocalFoff = ~(RadioReadRegister(pCurrentFrameworkRadio(pRadio), CCXXX_STAT_FREQEST) - 1);
Nodes[i].LastRemoteFoff = ~(RadioLocal.RxFrameStruct.frameHeader[FREQ_OFFSET_RECEIVER] - 1);
#endif
#ifdef INCLUDE_POWER_STATUS
Nodes[i].LastLocalPower = CurrentPower();
Nodes[i].LastRemotePower = RadioLocal.RxFrameStruct.frameHeader[CURRENT_POWER_INDEX];
#endif
#ifdef INCLUDE_CHANNEL_STATUS
Nodes[i].LastUsedChannel = CurrentChannel();
#endif
}
}
/*******************************************************************
** SetRFMode : Sets the SX1231 operating mode **
********************************************************************
** In : mode **
** Out : - **
*******************************************************************/
void
SetRFMode(uint8_t mode)
{
if (mode == PreMode)
return;
switch (mode) {
case RF_MODE_TRANSMITTER:
RadioWriteRegister(REG_OPMODE, (RegistersCfg[REG_OPMODE] & 0xE3) | RF_OPMODE_TRANSMITTER);
break;
case RF_MODE_RECEIVER:
RadioWriteRegister(REG_OPMODE, (RegistersCfg[REG_OPMODE] & 0xE3) | RF_OPMODE_RECEIVER);
break;
case RF_MODE_SYNTHESIZER:
RadioWriteRegister(REG_OPMODE, (RegistersCfg[REG_OPMODE] & 0xE3) | RF_OPMODE_SYNTHESIZER);
break;
case RF_MODE_STANDBY:
RadioWriteRegister(REG_OPMODE, (RegistersCfg[REG_OPMODE] & 0xE3) | RF_OPMODE_STANDBY);
break;
case RF_MODE_SLEEP:
RadioWriteRegister(REG_OPMODE, (RegistersCfg[REG_OPMODE] & 0xE3) | RF_OPMODE_SLEEP);
break;
default:
/* handle bogus mode? */
return;
} // ..switch (mode)
#if 0
/* we are using packet mode: waiting for mode ready is only necessary
* when going from to sleep because the FIFO may not be immediately available from previous mode */
while ((RadioReadRegister(REG_IRQFLAGS1) & RF_IRQFLAGS1_MODEREADY) == 0x00)
; // Wait for ModeReady
#endif
PreMode = mode;
if (mode == RF_MODE_TRANSMITTER)
RF_TRANSMIT_LED = LED_ON;
else
RF_TRANSMIT_LED = LED_OFF;
if (mode == RF_MODE_RECEIVER)
RF_RECEIVING_LED = LED_ON;
else
RF_RECEIVING_LED = LED_OFF;
}
uint8_t
SendRfFrame(const uint8_t *buffer, uint8_t size, uint8_t Node_adrs, char immediate_rx)
{
uint8_t ByteCounter;
/* turn off receiver to prevent reception while filling fifo */
SetRFMode(RF_MODE_STANDBY);
while ((RadioReadRegister(REG_IRQFLAGS1) & RF_IRQFLAGS1_MODEREADY) == 0x00)
; // Wait for ModeReady
RadioWriteRegister(REG_DIOMAPPING1, (RegistersCfg[REG_DIOMAPPING1] & 0x3F) | RF_DIOMAPPING1_DIO0_00); // DIO0 is "Packet Sent"
RadioWriteRegister(REG_FIFOTHRESH, (RegistersCfg[REG_FIFOTHRESH] & 0x7F) | RF_FIFOTHRESH_TXSTART_FIFONOTEMPTY);
RFState = RF_STATE_TX_BUSY;
/* SX1231 FIFO access (write) */
NSS = 0;
SpiInOut(REG_FIFO | 0x80);
SpiInOut(size + 1);
SpiInOut(Node_adrs);
for (ByteCounter = 0; ByteCounter < size; ByteCounter++)
{
SpiInOut(buffer[ByteCounter]);
}
NSS = 1;
/* no need to wait for transmit mode to be ready since its handled by the radio */
SetRFMode(RF_MODE_TRANSMITTER);
/* blocking here until finished transmitting */
while (IN_RF_DIO0 == 0)
;
if (immediate_rx)
{
start_rf_rx(0);
}
else
{
RFState = RF_STATE_STOP;
//RF_TRANSMIT_LED = LED_OFF;
SetRFMode(RF_MODE_STANDBY);
}
return RADIO_OK;
} // ...SendRfFrame()
uint8_t
ReceiveRfFrame(uint8_t *buffer, uint8_t *size, uint16_t rx_timeout)
{
uint8_t RFFrameSize;
uint8_t Node_Adrs;
uint8_t i;
switch (RFState)
{
case RF_STATE_STOP:
start_rf_rx(rx_timeout);
return RADIO_RX_RUNNING;
case RF_STATE_RX_BUSY:
if (IN_RF_DIO0)
{
RFState = RF_STATE_RX_DONE;
}
else if (HIRES_COMPARE_B_FLAG)
{
RFState = RF_STATE_TIMEOUT;
#ifdef LNA_TEST
}
else if (flags.read_lna && IN_RF_DIO4)
{
flags.read_lna = FALSE;
for (i = 0; i < 2300; i++)
{
asm("nop"); // about 2mS delay at 20MHz
asm("nop");
asm("nop");
asm("nop");
}
i = RadioReadRegister(REG_LNA);
ltoa((i & 0x38) >> 3, ucStr1, 0);
UART_send_str(ucStr1, TRUE);
#endif /* LNA_TEST */
}
return RADIO_RX_RUNNING;
case RF_STATE_RX_DONE:
SetRFMode(RF_MODE_STANDBY);
/* SX1231 FIFO access (read) */
NSS = 0;
SpiInOut(REG_FIFO & 0x7F);
RFFrameSize = SpiInOut(0);
Node_Adrs = SpiInOut(0);
i = Node_Adrs; // suppress compiler warning
RFFrameSize--;
for (i = 0; i < RFFrameSize; i++)
buffer[i] = SpiInOut(0);
NSS = 1;
*size = RFFrameSize;
RFState = RF_STATE_STOP;
return RADIO_OK;
case RF_STATE_ERROR:
SetRFMode(RF_MODE_STANDBY);
RFState = RF_STATE_STOP;
return RADIO_ERROR;
case RF_STATE_TIMEOUT:
SetRFMode(RF_MODE_STANDBY);
RFState = RF_STATE_STOP;
return RADIO_RX_TIMEOUT;
default:
SetRFMode(RF_MODE_STANDBY);
RFState = RF_STATE_STOP;
return RADIO_ERROR;
}
void
InitRFChip(void)
{
int i;
/* possibly writing to registers too early, checkit & write again as necessary */
do
{
RadioWriteRegister(REG_SYNCVALUE1, 0xAA);
} while (RadioReadRegister(REG_SYNCVALUE1) != 0xAA);
do
{
RadioWriteRegister(REG_SYNCVALUE1, 0x55);
} while (RadioReadRegister(REG_SYNCVALUE1) != 0x55);
/////// RC CALIBRATION (Once at POR) ///////
SetRFMode(RF_MODE_STANDBY);
while ((RadioReadRegister(REG_IRQFLAGS1) & RF_IRQFLAGS1_MODEREADY) == 0x00)
; // Wait for ModeReady
RadioWriteRegister(0x57, 0x80);
RadioWriteRegister(REG_OSC1, RadioReadRegister(REG_OSC1) | RF_OSC1_RCCAL_START);
while ((RadioReadRegister(REG_OSC1) & RF_OSC1_RCCAL_DONE) == 0x00)
;
RadioWriteRegister(REG_OSC1, RadioReadRegister(REG_OSC1) | RF_OSC1_RCCAL_START);
while ((RadioReadRegister(REG_OSC1) & RF_OSC1_RCCAL_DONE) == 0x00)
;
RadioWriteRegister(0x57, 0x00);
NSS = 0;
SpiInOut(REG_OPMODE | 0x80); // send address + r/w bit
for (i = 1; i <= REG_TEMP2; i++)
{
SpiInOut(RegistersCfg[i]);
}
NSS = 1;
#ifdef READBACK_VERIFY
for (i = 1; i <= REG_TEMP2; i++)
{
do
{
NSS = 0;
SpiInOut(i & 0x7F); // send address + r/w bit
regs[i] = SpiInOut(0);
NSS = 1;
switch (i)
{
case REG_OSC1:
regs[i] &= ~RF_OSC1_RCCAL_DONE; // read-only bit
break;
case REG_VERSION:
regs[i] = DEF_VERSION; // ignore hw-version
break;
case REG_LNA:
regs[i] &= ~RF_LNA_CURRENTGAIN; // read-only bits
break;
case REG_AFCFEI:
regs[i] &= ~RF_AFCFEI_AFC_DONE; // read-only bit
break;
case REG_RSSICONFIG:
regs[i] &= ~RF_RSSI_DONE; // read-only bit
break;
case REG_RSSIVALUE:
regs[i] = DEF_RSSIVALUE; // ignore rssi r/o
break;
case REG_IRQFLAGS1:
regs[i] &= ~RF_IRQFLAGS1_MODEREADY; // read-only bit
break;
case REG_IRQFLAGS2:
regs[i] |= RF_IRQFLAGS2_FIFOOVERRUN; // write-1->reset bit
break;
case REG_OSC2:
regs[i] = DEF_OSC2;
break;
}
} while (regs[i] != READ_ROM_BYTE(RegistersCfg[i]));
}
#endif /* ..READBACK_VERIFY */
SetRFMode(RF_MODE_STANDBY);
}