846 lines
25 KiB
C
846 lines
25 KiB
C
/*!
|
|
* \file RegionCN470.c
|
|
*
|
|
* \brief Region implementation for CN470
|
|
*
|
|
* \copyright Revised BSD License, see section \ref LICENSE.
|
|
*
|
|
* \code
|
|
* ______ _
|
|
* / _____) _ | |
|
|
* ( (____ _____ ____ _| |_ _____ ____| |__
|
|
* \____ \| ___ | (_ _) ___ |/ ___) _ \
|
|
* _____) ) ____| | | || |_| ____( (___| | | |
|
|
* (______/|_____)_|_|_| \__)_____)\____)_| |_|
|
|
* (C)2013-2017 Semtech
|
|
*
|
|
* ___ _____ _ ___ _ _____ ___ ___ ___ ___
|
|
* / __|_ _/_\ / __| |/ / __/ _ \| _ \/ __| __|
|
|
* \__ \ | |/ _ \ (__| ' <| _| (_) | / (__| _|
|
|
* |___/ |_/_/ \_\___|_|\_\_| \___/|_|_\\___|___|
|
|
* embedded.connectivity.solutions===============
|
|
*
|
|
* \endcode
|
|
*
|
|
* \author Miguel Luis ( Semtech )
|
|
*
|
|
* \author Gregory Cristian ( Semtech )
|
|
*
|
|
* \author Daniel Jaeckle ( STACKFORCE )
|
|
*/
|
|
#include "utilities.h"
|
|
|
|
#include "RegionCommon.h"
|
|
#include "RegionCN470.h"
|
|
#include "lorawan_conf.h"
|
|
#include "mw_log_conf.h"
|
|
|
|
// Definitions
|
|
#define CHANNELS_MASK_SIZE 6
|
|
|
|
/*!
|
|
* Region specific context
|
|
*/
|
|
typedef struct sRegionCN470NvmCtx
|
|
{
|
|
/*!
|
|
* LoRaMAC channels
|
|
*/
|
|
ChannelParams_t Channels[ CN470_MAX_NB_CHANNELS ];
|
|
/*!
|
|
* LoRaMac bands
|
|
*/
|
|
Band_t Bands[ CN470_MAX_NB_BANDS ];
|
|
/*!
|
|
* LoRaMac channels mask
|
|
*/
|
|
uint16_t ChannelsMask[ CHANNELS_MASK_SIZE ];
|
|
/*!
|
|
* LoRaMac channels default mask
|
|
*/
|
|
uint16_t ChannelsDefaultMask[ CHANNELS_MASK_SIZE ];
|
|
}RegionCN470NvmCtx_t;
|
|
|
|
/*
|
|
* Non-volatile module context.
|
|
*/
|
|
static RegionCN470NvmCtx_t NvmCtx;
|
|
|
|
// Static functions
|
|
static int8_t GetNextLowerTxDr( int8_t dr, int8_t minDr )
|
|
{
|
|
uint8_t nextLowerDr = 0;
|
|
|
|
if( dr == minDr )
|
|
{
|
|
nextLowerDr = minDr;
|
|
}
|
|
else
|
|
{
|
|
nextLowerDr = dr - 1;
|
|
}
|
|
return nextLowerDr;
|
|
}
|
|
|
|
static uint32_t GetBandwidth( uint32_t drIndex )
|
|
{
|
|
switch( BandwidthsCN470[drIndex] )
|
|
{
|
|
default:
|
|
case 125000:
|
|
return 0;
|
|
case 250000:
|
|
return 1;
|
|
case 500000:
|
|
return 2;
|
|
}
|
|
}
|
|
|
|
static int8_t LimitTxPower( int8_t txPower, int8_t maxBandTxPower, int8_t datarate, uint16_t* channelsMask )
|
|
{
|
|
int8_t txPowerResult = txPower;
|
|
|
|
// Limit tx power to the band max
|
|
txPowerResult = MAX( txPower, maxBandTxPower );
|
|
|
|
return txPowerResult;
|
|
}
|
|
|
|
static bool VerifyRfFreq( uint32_t freq )
|
|
{
|
|
// Check radio driver support
|
|
if( Radio.CheckRfFrequency( freq ) == false )
|
|
{
|
|
return false;
|
|
}
|
|
|
|
// Rx frequencies
|
|
if( ( freq < CN470_FIRST_RX1_CHANNEL ) ||
|
|
( freq > CN470_LAST_RX1_CHANNEL ) ||
|
|
( ( ( freq - ( uint32_t ) CN470_FIRST_RX1_CHANNEL ) % ( uint32_t ) CN470_STEPWIDTH_RX1_CHANNEL ) != 0 ) )
|
|
{
|
|
return false;
|
|
}
|
|
|
|
// Test for frequency range - take RX and TX freqencies into account
|
|
if( ( freq < 470300000 ) || ( freq > 509700000 ) )
|
|
{
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
static uint8_t CountNbOfEnabledChannels( uint8_t datarate, uint16_t* channelsMask, ChannelParams_t* channels, Band_t* bands, uint8_t* enabledChannels, uint8_t* delayTx )
|
|
{
|
|
uint8_t nbEnabledChannels = 0;
|
|
uint8_t delayTransmission = 0;
|
|
|
|
for( uint8_t i = 0, k = 0; i < CN470_MAX_NB_CHANNELS; i += 16, k++ )
|
|
{
|
|
for( uint8_t j = 0; j < 16; j++ )
|
|
{
|
|
if( ( channelsMask[k] & ( 1 << j ) ) != 0 )
|
|
{
|
|
if( channels[i + j].Frequency == 0 )
|
|
{ // Check if the channel is enabled
|
|
continue;
|
|
}
|
|
if( RegionCommonValueInRange( datarate, channels[i + j].DrRange.Fields.Min,
|
|
channels[i + j].DrRange.Fields.Max ) == false )
|
|
{ // Check if the current channel selection supports the given datarate
|
|
continue;
|
|
}
|
|
if( bands[channels[i + j].Band].TimeOff > 0 )
|
|
{ // Check if the band is available for transmission
|
|
delayTransmission++;
|
|
continue;
|
|
}
|
|
enabledChannels[nbEnabledChannels++] = i + j;
|
|
}
|
|
}
|
|
}
|
|
|
|
*delayTx = delayTransmission;
|
|
return nbEnabledChannels;
|
|
}
|
|
|
|
PhyParam_t RegionCN470GetPhyParam( GetPhyParams_t* getPhy )
|
|
{
|
|
PhyParam_t phyParam = { 0 };
|
|
|
|
switch( getPhy->Attribute )
|
|
{
|
|
case PHY_MIN_RX_DR:
|
|
{
|
|
phyParam.Value = CN470_RX_MIN_DATARATE;
|
|
break;
|
|
}
|
|
case PHY_MIN_TX_DR:
|
|
{
|
|
phyParam.Value = CN470_TX_MIN_DATARATE;
|
|
break;
|
|
}
|
|
case PHY_DEF_TX_DR:
|
|
{
|
|
phyParam.Value = CN470_DEFAULT_DATARATE;
|
|
break;
|
|
}
|
|
case PHY_NEXT_LOWER_TX_DR:
|
|
{
|
|
phyParam.Value = GetNextLowerTxDr( getPhy->Datarate, CN470_TX_MIN_DATARATE );
|
|
break;
|
|
}
|
|
case PHY_MAX_TX_POWER:
|
|
{
|
|
phyParam.Value = CN470_MAX_TX_POWER;
|
|
break;
|
|
}
|
|
case PHY_DEF_TX_POWER:
|
|
{
|
|
phyParam.Value = CN470_DEFAULT_TX_POWER;
|
|
break;
|
|
}
|
|
case PHY_DEF_ADR_ACK_LIMIT:
|
|
{
|
|
phyParam.Value = CN470_ADR_ACK_LIMIT;
|
|
break;
|
|
}
|
|
case PHY_DEF_ADR_ACK_DELAY:
|
|
{
|
|
phyParam.Value = CN470_ADR_ACK_DELAY;
|
|
break;
|
|
}
|
|
case PHY_MAX_PAYLOAD:
|
|
{
|
|
phyParam.Value = MaxPayloadOfDatarateCN470[getPhy->Datarate];
|
|
break;
|
|
}
|
|
case PHY_MAX_PAYLOAD_REPEATER:
|
|
{
|
|
phyParam.Value = MaxPayloadOfDatarateRepeaterCN470[getPhy->Datarate];
|
|
break;
|
|
}
|
|
case PHY_DUTY_CYCLE:
|
|
{
|
|
phyParam.Value = CN470_DUTY_CYCLE_ENABLED;
|
|
break;
|
|
}
|
|
case PHY_MAX_RX_WINDOW:
|
|
{
|
|
phyParam.Value = CN470_MAX_RX_WINDOW;
|
|
break;
|
|
}
|
|
case PHY_RECEIVE_DELAY1:
|
|
{
|
|
phyParam.Value = CN470_RECEIVE_DELAY1;
|
|
break;
|
|
}
|
|
case PHY_RECEIVE_DELAY2:
|
|
{
|
|
phyParam.Value = CN470_RECEIVE_DELAY2;
|
|
break;
|
|
}
|
|
case PHY_JOIN_ACCEPT_DELAY1:
|
|
{
|
|
phyParam.Value = CN470_JOIN_ACCEPT_DELAY1;
|
|
break;
|
|
}
|
|
case PHY_JOIN_ACCEPT_DELAY2:
|
|
{
|
|
phyParam.Value = CN470_JOIN_ACCEPT_DELAY2;
|
|
break;
|
|
}
|
|
case PHY_MAX_FCNT_GAP:
|
|
{
|
|
phyParam.Value = CN470_MAX_FCNT_GAP;
|
|
break;
|
|
}
|
|
case PHY_ACK_TIMEOUT:
|
|
{
|
|
phyParam.Value = ( CN470_ACKTIMEOUT + randr( -CN470_ACK_TIMEOUT_RND, CN470_ACK_TIMEOUT_RND ) );
|
|
break;
|
|
}
|
|
case PHY_DEF_DR1_OFFSET:
|
|
{
|
|
phyParam.Value = CN470_DEFAULT_RX1_DR_OFFSET;
|
|
break;
|
|
}
|
|
case PHY_DEF_RX2_FREQUENCY:
|
|
{
|
|
phyParam.Value = CN470_RX_WND_2_FREQ;
|
|
break;
|
|
}
|
|
case PHY_DEF_RX2_DR:
|
|
{
|
|
phyParam.Value = CN470_RX_WND_2_DR;
|
|
break;
|
|
}
|
|
case PHY_CHANNELS_MASK:
|
|
{
|
|
phyParam.ChannelsMask = NvmCtx.ChannelsMask;
|
|
break;
|
|
}
|
|
case PHY_CHANNELS_DEFAULT_MASK:
|
|
{
|
|
phyParam.ChannelsMask = NvmCtx.ChannelsDefaultMask;
|
|
break;
|
|
}
|
|
case PHY_MAX_NB_CHANNELS:
|
|
{
|
|
phyParam.Value = CN470_MAX_NB_CHANNELS;
|
|
break;
|
|
}
|
|
case PHY_CHANNELS:
|
|
{
|
|
phyParam.Channels = NvmCtx.Channels;
|
|
break;
|
|
}
|
|
case PHY_DEF_UPLINK_DWELL_TIME:
|
|
case PHY_DEF_DOWNLINK_DWELL_TIME:
|
|
{
|
|
phyParam.Value = 0;
|
|
break;
|
|
}
|
|
case PHY_DEF_MAX_EIRP:
|
|
{
|
|
phyParam.fValue = CN470_DEFAULT_MAX_EIRP;
|
|
break;
|
|
}
|
|
case PHY_DEF_ANTENNA_GAIN:
|
|
{
|
|
phyParam.fValue = CN470_DEFAULT_ANTENNA_GAIN;
|
|
break;
|
|
}
|
|
case PHY_BEACON_FORMAT:
|
|
{
|
|
phyParam.BeaconFormat.BeaconSize = CN470_BEACON_SIZE;
|
|
phyParam.BeaconFormat.Rfu1Size = CN470_RFU1_SIZE;
|
|
phyParam.BeaconFormat.Rfu2Size = CN470_RFU2_SIZE;
|
|
break;
|
|
}
|
|
case PHY_BEACON_CHANNEL_DR:
|
|
{
|
|
phyParam.Value = CN470_BEACON_CHANNEL_DR;
|
|
break;
|
|
}
|
|
case PHY_BEACON_CHANNEL_STEPWIDTH:
|
|
{
|
|
phyParam.Value = CN470_BEACON_CHANNEL_STEPWIDTH;
|
|
break;
|
|
}
|
|
case PHY_BEACON_NB_CHANNELS:
|
|
{
|
|
phyParam.Value = CN470_BEACON_NB_CHANNELS;
|
|
break;
|
|
}
|
|
case PHY_PING_SLOT_CHANNEL_DR:
|
|
{
|
|
phyParam.Value = CN470_PING_SLOT_CHANNEL_DR;
|
|
break;
|
|
}
|
|
default:
|
|
{
|
|
break;
|
|
}
|
|
}
|
|
|
|
return phyParam;
|
|
}
|
|
|
|
void RegionCN470SetBandTxDone( SetBandTxDoneParams_t* txDone )
|
|
{
|
|
RegionCommonSetBandTxDone( txDone->Joined, &NvmCtx.Bands[NvmCtx.Channels[txDone->Channel].Band], txDone->LastTxDoneTime );
|
|
}
|
|
|
|
void RegionCN470InitDefaults( InitDefaultsParams_t* params )
|
|
{
|
|
Band_t bands[CN470_MAX_NB_BANDS] =
|
|
{
|
|
CN470_BAND0
|
|
};
|
|
|
|
switch( params->Type )
|
|
{
|
|
case INIT_TYPE_INIT:
|
|
{
|
|
// Initialize bands
|
|
memcpy1( ( uint8_t* )NvmCtx.Bands, ( uint8_t* )bands, sizeof( Band_t ) * CN470_MAX_NB_BANDS );
|
|
|
|
// Channels
|
|
// 125 kHz channels
|
|
for( uint8_t i = 0; i < CN470_MAX_NB_CHANNELS; i++ )
|
|
{
|
|
NvmCtx.Channels[i].Frequency = 470300000 + i * 200000;
|
|
NvmCtx.Channels[i].DrRange.Value = ( DR_5 << 4 ) | DR_0;
|
|
NvmCtx.Channels[i].Band = 0;
|
|
}
|
|
|
|
// Initialize the channels default mask
|
|
NvmCtx.ChannelsDefaultMask[0] = 0xFFFF;
|
|
NvmCtx.ChannelsDefaultMask[1] = 0xFFFF;
|
|
NvmCtx.ChannelsDefaultMask[2] = 0xFFFF;
|
|
NvmCtx.ChannelsDefaultMask[3] = 0xFFFF;
|
|
NvmCtx.ChannelsDefaultMask[4] = 0xFFFF;
|
|
NvmCtx.ChannelsDefaultMask[5] = 0xFFFF;
|
|
|
|
// Update the channels mask
|
|
RegionCommonChanMaskCopy( NvmCtx.ChannelsMask, NvmCtx.ChannelsDefaultMask, 6 );
|
|
break;
|
|
}
|
|
case INIT_TYPE_RESTORE_CTX:
|
|
{
|
|
if( params->NvmCtx != 0 )
|
|
{
|
|
memcpy1( (uint8_t*) &NvmCtx, (uint8_t*) params->NvmCtx, sizeof( NvmCtx ) );
|
|
}
|
|
break;
|
|
}
|
|
case INIT_TYPE_RESTORE_DEFAULT_CHANNELS:
|
|
{
|
|
// Restore channels default mask
|
|
RegionCommonChanMaskCopy( NvmCtx.ChannelsMask, NvmCtx.ChannelsDefaultMask, 6 );
|
|
break;
|
|
}
|
|
default:
|
|
{
|
|
break;
|
|
}
|
|
}
|
|
}
|
|
|
|
void* RegionCN470GetNvmCtx( GetNvmCtxParams_t* params )
|
|
{
|
|
params->nvmCtxSize = sizeof( RegionCN470NvmCtx_t );
|
|
return &NvmCtx;
|
|
}
|
|
|
|
bool RegionCN470Verify( VerifyParams_t* verify, PhyAttribute_t phyAttribute )
|
|
{
|
|
switch( phyAttribute )
|
|
{
|
|
case PHY_FREQUENCY:
|
|
{
|
|
return VerifyRfFreq( verify->Frequency );
|
|
}
|
|
case PHY_TX_DR:
|
|
case PHY_DEF_TX_DR:
|
|
{
|
|
return RegionCommonValueInRange( verify->DatarateParams.Datarate, CN470_TX_MIN_DATARATE, CN470_TX_MAX_DATARATE );
|
|
}
|
|
case PHY_RX_DR:
|
|
{
|
|
return RegionCommonValueInRange( verify->DatarateParams.Datarate, CN470_RX_MIN_DATARATE, CN470_RX_MAX_DATARATE );
|
|
}
|
|
case PHY_DEF_TX_POWER:
|
|
case PHY_TX_POWER:
|
|
{
|
|
// Remark: switched min and max!
|
|
return RegionCommonValueInRange( verify->TxPower, CN470_MAX_TX_POWER, CN470_MIN_TX_POWER );
|
|
}
|
|
case PHY_DUTY_CYCLE:
|
|
{
|
|
return CN470_DUTY_CYCLE_ENABLED;
|
|
}
|
|
default:
|
|
return false;
|
|
}
|
|
}
|
|
|
|
void RegionCN470ApplyCFList( ApplyCFListParams_t* applyCFList )
|
|
{
|
|
// Size of the optional CF list must be 16 byte
|
|
if( applyCFList->Size != 16 )
|
|
{
|
|
return;
|
|
}
|
|
|
|
// Last byte CFListType must be 0x01 to indicate the CFList contains a series of ChMask fields
|
|
if( applyCFList->Payload[15] != 0x01 )
|
|
{
|
|
return;
|
|
}
|
|
|
|
// ChMask0 - ChMask5 must be set (every ChMask has 16 bit)
|
|
for( uint8_t chMaskItr = 0, cntPayload = 0; chMaskItr <= 5; chMaskItr++, cntPayload+=2 )
|
|
{
|
|
NvmCtx.ChannelsMask[chMaskItr] = (uint16_t) (0x00FF & applyCFList->Payload[cntPayload]);
|
|
NvmCtx.ChannelsMask[chMaskItr] |= (uint16_t) (applyCFList->Payload[cntPayload+1] << 8);
|
|
}
|
|
}
|
|
|
|
bool RegionCN470ChanMaskSet( ChanMaskSetParams_t* chanMaskSet )
|
|
{
|
|
switch( chanMaskSet->ChannelsMaskType )
|
|
{
|
|
case CHANNELS_MASK:
|
|
{
|
|
RegionCommonChanMaskCopy( NvmCtx.ChannelsMask, chanMaskSet->ChannelsMaskIn, 6 );
|
|
break;
|
|
}
|
|
case CHANNELS_DEFAULT_MASK:
|
|
{
|
|
RegionCommonChanMaskCopy( NvmCtx.ChannelsDefaultMask, chanMaskSet->ChannelsMaskIn, 6 );
|
|
break;
|
|
}
|
|
default:
|
|
return false;
|
|
}
|
|
return true;
|
|
}
|
|
|
|
void RegionCN470ComputeRxWindowParameters( int8_t datarate, uint8_t minRxSymbols, uint32_t rxError, RxConfigParams_t *rxConfigParams )
|
|
{
|
|
double tSymbol = 0.0;
|
|
|
|
// Get the datarate, perform a boundary check
|
|
rxConfigParams->Datarate = MIN( datarate, CN470_RX_MAX_DATARATE );
|
|
rxConfigParams->Bandwidth = GetBandwidth( rxConfigParams->Datarate );
|
|
|
|
tSymbol = RegionCommonComputeSymbolTimeLoRa( DataratesCN470[rxConfigParams->Datarate], BandwidthsCN470[rxConfigParams->Datarate] );
|
|
|
|
RegionCommonComputeRxWindowParameters( tSymbol, minRxSymbols, rxError, Radio.GetWakeupTime( ), &rxConfigParams->WindowTimeout, &rxConfigParams->WindowOffset );
|
|
}
|
|
|
|
bool RegionCN470RxConfig( RxConfigParams_t* rxConfig, int8_t* datarate )
|
|
{
|
|
int8_t dr = rxConfig->Datarate;
|
|
uint8_t maxPayload = 0;
|
|
int8_t phyDr = 0;
|
|
uint32_t frequency = rxConfig->Frequency;
|
|
const char *slotStrings[] = { "1", "2", "C", "Multi_C", "P", "Multi_P" };
|
|
|
|
if( Radio.GetStatus( ) != RF_IDLE )
|
|
{
|
|
return false;
|
|
}
|
|
|
|
if( rxConfig->RxSlot == RX_SLOT_WIN_1 )
|
|
{
|
|
// Apply window 1 frequency
|
|
frequency = CN470_FIRST_RX1_CHANNEL + ( rxConfig->Channel % 48 ) * CN470_STEPWIDTH_RX1_CHANNEL;
|
|
}
|
|
|
|
// Read the physical datarate from the datarates table
|
|
phyDr = DataratesCN470[dr];
|
|
|
|
Radio.SetChannel( frequency );
|
|
|
|
// Radio configuration
|
|
Radio.SetRxConfig( MODEM_LORA, rxConfig->Bandwidth, phyDr, 1, 0, 8, rxConfig->WindowTimeout, false, 0, false, 0, 0, true, rxConfig->RxContinuous );
|
|
|
|
if( rxConfig->RepeaterSupport == true )
|
|
{
|
|
maxPayload = MaxPayloadOfDatarateRepeaterCN470[dr];
|
|
}
|
|
else
|
|
{
|
|
maxPayload = MaxPayloadOfDatarateCN470[dr];
|
|
}
|
|
Radio.SetMaxPayloadLength( MODEM_LORA, maxPayload + LORA_MAC_FRMPAYLOAD_OVERHEAD );
|
|
if ( rxConfig->RxSlot < RX_SLOT_NONE )
|
|
{
|
|
MW_LOG( "RX_%s on freq %d Hz at DR %d\n\r", slotStrings[rxConfig->RxSlot], frequency, dr );
|
|
}
|
|
else
|
|
{
|
|
MW_LOG( "RX on freq %d Hz at DR %d\n\r", frequency, dr );
|
|
}
|
|
|
|
*datarate = (uint8_t) dr;
|
|
return true;
|
|
}
|
|
|
|
bool RegionCN470TxConfig( TxConfigParams_t* txConfig, int8_t* txPower, TimerTime_t* txTimeOnAir )
|
|
{
|
|
int8_t phyDr = DataratesCN470[txConfig->Datarate];
|
|
int8_t txPowerLimited = LimitTxPower( txConfig->TxPower, NvmCtx.Bands[NvmCtx.Channels[txConfig->Channel].Band].TxMaxPower, txConfig->Datarate, NvmCtx.ChannelsMask );
|
|
int8_t phyTxPower = 0;
|
|
|
|
// Calculate physical TX power
|
|
phyTxPower = RegionCommonComputeTxPower( txPowerLimited, txConfig->MaxEirp, txConfig->AntennaGain );
|
|
|
|
// Setup the radio frequency
|
|
Radio.SetChannel( NvmCtx.Channels[txConfig->Channel].Frequency );
|
|
|
|
Radio.SetTxConfig( MODEM_LORA, phyTxPower, 0, 0, phyDr, 1, 8, false, true, 0, 0, false, 4000 );
|
|
MW_LOG( "TX on freq %d Hz at DR %d\n\r", NvmCtx.Channels[txConfig->Channel].Frequency, txConfig->Datarate );
|
|
|
|
// Setup maximum payload lenght of the radio driver
|
|
Radio.SetMaxPayloadLength( MODEM_LORA, txConfig->PktLen );
|
|
// Get the time-on-air of the next tx frame
|
|
*txTimeOnAir = Radio.TimeOnAir( MODEM_LORA, txConfig->PktLen );
|
|
*txPower = txPowerLimited;
|
|
|
|
return true;
|
|
}
|
|
|
|
uint8_t RegionCN470LinkAdrReq( LinkAdrReqParams_t* linkAdrReq, int8_t* drOut, int8_t* txPowOut, uint8_t* nbRepOut, uint8_t* nbBytesParsed )
|
|
{
|
|
uint8_t status = 0x07;
|
|
RegionCommonLinkAdrParams_t linkAdrParams;
|
|
uint8_t nextIndex = 0;
|
|
uint8_t bytesProcessed = 0;
|
|
uint16_t channelsMask[6] = { 0, 0, 0, 0, 0, 0 };
|
|
GetPhyParams_t getPhy;
|
|
PhyParam_t phyParam;
|
|
RegionCommonLinkAdrReqVerifyParams_t linkAdrVerifyParams;
|
|
|
|
// Initialize local copy of channels mask
|
|
RegionCommonChanMaskCopy( channelsMask, NvmCtx.ChannelsMask, 6 );
|
|
|
|
while( bytesProcessed < linkAdrReq->PayloadSize )
|
|
{
|
|
// Get ADR request parameters
|
|
nextIndex = RegionCommonParseLinkAdrReq( &( linkAdrReq->Payload[bytesProcessed] ), &linkAdrParams );
|
|
|
|
if( nextIndex == 0 )
|
|
break; // break loop, since no more request has been found
|
|
|
|
// Update bytes processed
|
|
bytesProcessed += nextIndex;
|
|
|
|
// Revert status, as we only check the last ADR request for the channel mask KO
|
|
status = 0x07;
|
|
|
|
if( linkAdrParams.ChMaskCtrl == 6 )
|
|
{
|
|
// Enable all 125 kHz channels
|
|
channelsMask[0] = 0xFFFF;
|
|
channelsMask[1] = 0xFFFF;
|
|
channelsMask[2] = 0xFFFF;
|
|
channelsMask[3] = 0xFFFF;
|
|
channelsMask[4] = 0xFFFF;
|
|
channelsMask[5] = 0xFFFF;
|
|
}
|
|
else if( linkAdrParams.ChMaskCtrl == 7 )
|
|
{
|
|
status &= 0xFE; // Channel mask KO
|
|
}
|
|
else
|
|
{
|
|
for( uint8_t i = 0; i < 16; i++ )
|
|
{
|
|
if( ( ( linkAdrParams.ChMask & ( 1 << i ) ) != 0 ) &&
|
|
( NvmCtx.Channels[linkAdrParams.ChMaskCtrl * 16 + i].Frequency == 0 ) )
|
|
{// Trying to enable an undefined channel
|
|
status &= 0xFE; // Channel mask KO
|
|
}
|
|
}
|
|
channelsMask[linkAdrParams.ChMaskCtrl] = linkAdrParams.ChMask;
|
|
}
|
|
}
|
|
|
|
// Get the minimum possible datarate
|
|
getPhy.Attribute = PHY_MIN_TX_DR;
|
|
getPhy.UplinkDwellTime = linkAdrReq->UplinkDwellTime;
|
|
phyParam = RegionCN470GetPhyParam( &getPhy );
|
|
|
|
linkAdrVerifyParams.Status = status;
|
|
linkAdrVerifyParams.AdrEnabled = linkAdrReq->AdrEnabled;
|
|
linkAdrVerifyParams.Datarate = linkAdrParams.Datarate;
|
|
linkAdrVerifyParams.TxPower = linkAdrParams.TxPower;
|
|
linkAdrVerifyParams.NbRep = linkAdrParams.NbRep;
|
|
linkAdrVerifyParams.CurrentDatarate = linkAdrReq->CurrentDatarate;
|
|
linkAdrVerifyParams.CurrentTxPower = linkAdrReq->CurrentTxPower;
|
|
linkAdrVerifyParams.CurrentNbRep = linkAdrReq->CurrentNbRep;
|
|
linkAdrVerifyParams.NbChannels = CN470_MAX_NB_CHANNELS;
|
|
linkAdrVerifyParams.ChannelsMask = channelsMask;
|
|
linkAdrVerifyParams.MinDatarate = ( int8_t )phyParam.Value;
|
|
linkAdrVerifyParams.MaxDatarate = CN470_TX_MAX_DATARATE;
|
|
linkAdrVerifyParams.Channels = NvmCtx.Channels;
|
|
linkAdrVerifyParams.MinTxPower = CN470_MIN_TX_POWER;
|
|
linkAdrVerifyParams.MaxTxPower = CN470_MAX_TX_POWER;
|
|
linkAdrVerifyParams.Version = linkAdrReq->Version;
|
|
|
|
// Verify the parameters and update, if necessary
|
|
status = RegionCommonLinkAdrReqVerifyParams( &linkAdrVerifyParams, &linkAdrParams.Datarate, &linkAdrParams.TxPower, &linkAdrParams.NbRep );
|
|
|
|
// Update channelsMask if everything is correct
|
|
if( status == 0x07 )
|
|
{
|
|
// Copy Mask
|
|
RegionCommonChanMaskCopy( NvmCtx.ChannelsMask, channelsMask, 6 );
|
|
}
|
|
|
|
// Update status variables
|
|
*drOut = linkAdrParams.Datarate;
|
|
*txPowOut = linkAdrParams.TxPower;
|
|
*nbRepOut = linkAdrParams.NbRep;
|
|
*nbBytesParsed = bytesProcessed;
|
|
|
|
return status;
|
|
}
|
|
|
|
uint8_t RegionCN470RxParamSetupReq( RxParamSetupReqParams_t* rxParamSetupReq )
|
|
{
|
|
uint8_t status = 0x07;
|
|
|
|
// Verify radio frequency
|
|
if( VerifyRfFreq( rxParamSetupReq->Frequency ) == false )
|
|
{
|
|
status &= 0xFE; // Channel frequency KO
|
|
}
|
|
|
|
// Verify datarate
|
|
if( RegionCommonValueInRange( rxParamSetupReq->Datarate, CN470_RX_MIN_DATARATE, CN470_RX_MAX_DATARATE ) == false )
|
|
{
|
|
status &= 0xFD; // Datarate KO
|
|
}
|
|
|
|
// Verify datarate offset
|
|
if( RegionCommonValueInRange( rxParamSetupReq->DrOffset, CN470_MIN_RX1_DR_OFFSET, CN470_MAX_RX1_DR_OFFSET ) == false )
|
|
{
|
|
status &= 0xFB; // Rx1DrOffset range KO
|
|
}
|
|
|
|
return status;
|
|
}
|
|
|
|
uint8_t RegionCN470NewChannelReq( NewChannelReqParams_t* newChannelReq )
|
|
{
|
|
// Datarate and frequency KO
|
|
return 0;
|
|
}
|
|
|
|
int8_t RegionCN470TxParamSetupReq( TxParamSetupReqParams_t* txParamSetupReq )
|
|
{
|
|
return -1;
|
|
}
|
|
|
|
uint8_t RegionCN470DlChannelReq( DlChannelReqParams_t* dlChannelReq )
|
|
{
|
|
return 0;
|
|
}
|
|
|
|
int8_t RegionCN470AlternateDr( int8_t currentDr, AlternateDrType_t type )
|
|
{
|
|
return currentDr;
|
|
}
|
|
|
|
void RegionCN470CalcBackOff( CalcBackOffParams_t* calcBackOff )
|
|
{
|
|
RegionCommonCalcBackOffParams_t calcBackOffParams;
|
|
|
|
calcBackOffParams.Channels = NvmCtx.Channels;
|
|
calcBackOffParams.Bands = NvmCtx.Bands;
|
|
calcBackOffParams.LastTxIsJoinRequest = calcBackOff->LastTxIsJoinRequest;
|
|
calcBackOffParams.Joined = calcBackOff->Joined;
|
|
calcBackOffParams.DutyCycleEnabled = calcBackOff->DutyCycleEnabled;
|
|
calcBackOffParams.Channel = calcBackOff->Channel;
|
|
calcBackOffParams.ElapsedTime = calcBackOff->ElapsedTime;
|
|
calcBackOffParams.TxTimeOnAir = calcBackOff->TxTimeOnAir;
|
|
|
|
RegionCommonCalcBackOff( &calcBackOffParams );
|
|
}
|
|
|
|
LoRaMacStatus_t RegionCN470NextChannel( NextChanParams_t* nextChanParams, uint8_t* channel, TimerTime_t* time, TimerTime_t* aggregatedTimeOff )
|
|
{
|
|
uint8_t nbEnabledChannels = 0;
|
|
uint8_t delayTx = 0;
|
|
uint8_t enabledChannels[CN470_MAX_NB_CHANNELS] = { 0 };
|
|
TimerTime_t nextTxDelay = 0;
|
|
|
|
// Count 125kHz channels
|
|
if( RegionCommonCountChannels( NvmCtx.ChannelsMask, 0, 6 ) == 0 )
|
|
{ // Reactivate default channels
|
|
NvmCtx.ChannelsMask[0] = 0xFFFF;
|
|
NvmCtx.ChannelsMask[1] = 0xFFFF;
|
|
NvmCtx.ChannelsMask[2] = 0xFFFF;
|
|
NvmCtx.ChannelsMask[3] = 0xFFFF;
|
|
NvmCtx.ChannelsMask[4] = 0xFFFF;
|
|
NvmCtx.ChannelsMask[5] = 0xFFFF;
|
|
}
|
|
|
|
TimerTime_t elapsed = TimerGetElapsedTime( nextChanParams->LastAggrTx );
|
|
if( ( nextChanParams->LastAggrTx == 0 ) || ( nextChanParams->AggrTimeOff <= elapsed ) )
|
|
{
|
|
// Reset Aggregated time off
|
|
*aggregatedTimeOff = 0;
|
|
|
|
// Update bands Time OFF
|
|
nextTxDelay = RegionCommonUpdateBandTimeOff( nextChanParams->Joined, nextChanParams->DutyCycleEnabled, NvmCtx.Bands, CN470_MAX_NB_BANDS );
|
|
|
|
// Search how many channels are enabled
|
|
nbEnabledChannels = CountNbOfEnabledChannels( nextChanParams->Datarate,
|
|
NvmCtx.ChannelsMask, NvmCtx.Channels,
|
|
NvmCtx.Bands, enabledChannels, &delayTx );
|
|
}
|
|
else
|
|
{
|
|
delayTx++;
|
|
nextTxDelay = nextChanParams->AggrTimeOff - elapsed;
|
|
}
|
|
|
|
if( nbEnabledChannels > 0 )
|
|
{
|
|
// We found a valid channel
|
|
*channel = enabledChannels[randr( 0, nbEnabledChannels - 1 )];
|
|
|
|
*time = 0;
|
|
return LORAMAC_STATUS_OK;
|
|
}
|
|
else
|
|
{
|
|
if( delayTx > 0 )
|
|
{
|
|
// Delay transmission due to AggregatedTimeOff or to a band time off
|
|
*time = nextTxDelay;
|
|
return LORAMAC_STATUS_DUTYCYCLE_RESTRICTED;
|
|
}
|
|
// Datarate not supported by any channel
|
|
*time = 0;
|
|
return LORAMAC_STATUS_NO_CHANNEL_FOUND;
|
|
}
|
|
}
|
|
|
|
LoRaMacStatus_t RegionCN470ChannelAdd( ChannelAddParams_t* channelAdd )
|
|
{
|
|
return LORAMAC_STATUS_PARAMETER_INVALID;
|
|
}
|
|
|
|
bool RegionCN470ChannelsRemove( ChannelRemoveParams_t* channelRemove )
|
|
{
|
|
return LORAMAC_STATUS_PARAMETER_INVALID;
|
|
}
|
|
|
|
void RegionCN470SetContinuousWave( ContinuousWaveParams_t* continuousWave )
|
|
{
|
|
int8_t txPowerLimited = LimitTxPower( continuousWave->TxPower, NvmCtx.Bands[NvmCtx.Channels[continuousWave->Channel].Band].TxMaxPower, continuousWave->Datarate, NvmCtx.ChannelsMask );
|
|
int8_t phyTxPower = 0;
|
|
uint32_t frequency = NvmCtx.Channels[continuousWave->Channel].Frequency;
|
|
|
|
// Calculate physical TX power
|
|
phyTxPower = RegionCommonComputeTxPower( txPowerLimited, continuousWave->MaxEirp, continuousWave->AntennaGain );
|
|
|
|
Radio.SetTxContinuousWave( frequency, phyTxPower, continuousWave->Timeout );
|
|
}
|
|
|
|
uint8_t RegionCN470ApplyDrOffset( uint8_t downlinkDwellTime, int8_t dr, int8_t drOffset )
|
|
{
|
|
int8_t datarate = dr - drOffset;
|
|
|
|
if( datarate < 0 )
|
|
{
|
|
datarate = DR_0;
|
|
}
|
|
return datarate;
|
|
}
|
|
|
|
void RegionCN470RxBeaconSetup( RxBeaconSetup_t* rxBeaconSetup, uint8_t* outDr )
|
|
{
|
|
RegionCommonRxBeaconSetupParams_t regionCommonRxBeaconSetup;
|
|
|
|
regionCommonRxBeaconSetup.Datarates = DataratesCN470;
|
|
regionCommonRxBeaconSetup.Frequency = rxBeaconSetup->Frequency;
|
|
regionCommonRxBeaconSetup.BeaconSize = CN470_BEACON_SIZE;
|
|
regionCommonRxBeaconSetup.BeaconDatarate = CN470_BEACON_CHANNEL_DR;
|
|
regionCommonRxBeaconSetup.BeaconChannelBW = CN470_BEACON_CHANNEL_BW;
|
|
regionCommonRxBeaconSetup.RxTime = rxBeaconSetup->RxTime;
|
|
regionCommonRxBeaconSetup.SymbolTimeout = rxBeaconSetup->SymbolTimeout;
|
|
|
|
RegionCommonRxBeaconSetup( ®ionCommonRxBeaconSetup );
|
|
|
|
// Store downlink datarate
|
|
*outDr = CN470_BEACON_CHANNEL_DR;
|
|
}
|