/*
* Copyright (c) 2014-2016 IBM Corporation.
* Copyright (c) 2017 MCCI Corporation.
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
* modification, are permitted provided that the following conditions are met:
* * Redistributions of source code must retain the above copyright
* notice, this list of conditions and the following disclaimer.
* * Redistributions in binary form must reproduce the above copyright
* notice, this list of conditions and the following disclaimer in the
* documentation and/or other materials provided with the distribution.
* * Neither the name of the <organization> nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" AND
* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL <COPYRIGHT HOLDER> BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#define LMIC_DR_LEGACY 0
#include "lmic_bandplan.h"
#if defined(CFG_au921)
// ================================================================================
//
// BEG: AU921 related stuff
//
CONST_TABLE(u1_t, _DR2RPS_CRC)[] = {
ILLEGAL_RPS, // [-1]
MAKERPS(SF12, BW125, CR_4_5, 0, 0), // [0]
MAKERPS(SF11, BW125, CR_4_5, 0, 0), // [1]
MAKERPS(SF10, BW125, CR_4_5, 0, 0), // [2]
MAKERPS(SF9 , BW125, CR_4_5, 0, 0), // [3]
MAKERPS(SF8 , BW125, CR_4_5, 0, 0), // [4]
MAKERPS(SF7 , BW125, CR_4_5, 0, 0), // [5]
MAKERPS(SF8 , BW500, CR_4_5, 0, 0), // [6]
ILLEGAL_RPS , // [7]
MAKERPS(SF12, BW500, CR_4_5, 0, 0), // [8]
MAKERPS(SF11, BW500, CR_4_5, 0, 0), // [9]
MAKERPS(SF10, BW500, CR_4_5, 0, 0), // [10]
MAKERPS(SF9 , BW500, CR_4_5, 0, 0), // [11]
MAKERPS(SF8 , BW500, CR_4_5, 0, 0), // [12]
MAKERPS(SF7 , BW500, CR_4_5, 0, 0), // [13]
ILLEGAL_RPS
};
static CONST_TABLE(u1_t, maxFrameLens)[] = {
59+5, 59+5, 59+5, 123+5, 230+5, 230+5, 230+5, 255,
41+5, 117+5, 230+5, 230+5, 230+5, 230+5 };
uint8_t LMICau921_maxFrameLen(uint8_t dr) {
if (dr < LENOF_TABLE(maxFrameLens))
return TABLE_GET_U1(maxFrameLens, dr);
else
return 0xFF;
}
static CONST_TABLE(ostime_t, DR2HSYM_osticks)[] = {
us2osticksRound(128 << 7), // DR_SF12
us2osticksRound(128 << 6), // DR_SF11
us2osticksRound(128 << 5), // DR_SF10
us2osticksRound(128 << 4), // DR_SF9
us2osticksRound(128 << 3), // DR_SF8
us2osticksRound(128 << 2), // DR_SF7
us2osticksRound(128 << 1), // DR_SF8C
us2osticksRound(128 << 0), // ------
us2osticksRound(128 << 5), // DR_SF12CR
us2osticksRound(128 << 4), // DR_SF11CR
us2osticksRound(128 << 3), // DR_SF10CR
us2osticksRound(128 << 2), // DR_SF9CR
us2osticksRound(128 << 1), // DR_SF8CR
us2osticksRound(128 << 0), // DR_SF7CR
};
// get ostime for symbols based on datarate. This is not like us915,
// becuase the times don't match between the upper half and lower half
// of the table.
ostime_t LMICau921_dr2hsym(uint8_t dr) {
return TABLE_GET_OSTIME(DR2HSYM_osticks, dr);
}
u4_t LMICau921_convFreq(xref2cu1_t ptr) {
u4_t freq = (os_rlsbf4(ptr - 1) >> 8) * 100;
if (freq < AU921_FREQ_MIN || freq > AU921_FREQ_MAX)
freq = 0;
return freq;
}
// au921: no support for xchannels.
bit_t LMIC_setupChannel(u1_t chidx, u4_t freq, u2_t drmap, s1_t band) {
return 0; // all channels are hardwired.
}
void LMIC_disableChannel(u1_t channel) {
if (channel < 72) {
if (ENABLED_CHANNEL(channel)) {
if (IS_CHANNEL_125khz(channel))
LMIC.activeChannels125khz--;
else if (IS_CHANNEL_500khz(channel))
LMIC.activeChannels500khz--;
}
LMIC.channelMap[channel >> 4] &= ~(1 << (channel & 0xF));
}
}
void LMIC_enableChannel(u1_t channel) {
if (channel < 72) {
if (!ENABLED_CHANNEL(channel)) {
if (IS_CHANNEL_125khz(channel))
LMIC.activeChannels125khz++;
else if (IS_CHANNEL_500khz(channel))
LMIC.activeChannels500khz++;
}
LMIC.channelMap[channel >> 4] |= (1 << (channel & 0xF));
}
}
void LMIC_enableSubBand(u1_t band) {
ASSERT(band < 8);
u1_t start = band * 8;
u1_t end = start + 8;
// enable all eight 125 kHz channels in this subband
for (int channel = start; channel < end; ++channel)
LMIC_enableChannel(channel);
// there's a single 500 kHz channel associated with
// each group of 8 125 kHz channels. Enable it, too.
LMIC_enableChannel(64 + band);
}
void LMIC_disableSubBand(u1_t band) {
ASSERT(band < 8);
u1_t start = band * 8;
u1_t end = start + 8;
// disable all eight 125 kHz channels in this subband
for (int channel = start; channel < end; ++channel)
LMIC_disableChannel(channel);
// there's a single 500 kHz channel associated with
// each group of 8 125 kHz channels. Disable it, too.
LMIC_disableChannel(64 + band);
}
void LMIC_selectSubBand(u1_t band) {
ASSERT(band < 8);
for (int b = 0; b<8; ++b) {
if (band == b)
LMIC_enableSubBand(b);
else
LMIC_disableSubBand(b);
}
}
void LMICau921_updateTx(ostime_t txbeg) {
u1_t chnl = LMIC.txChnl;
LMIC.txpow = AU921_TX_EIRP_MAX_DBM;
if (chnl < 64) {
LMIC.freq = AU921_125kHz_UPFBASE + chnl*AU921_125kHz_UPFSTEP;
} else {
ASSERT(chnl < 64 + 8);
LMIC.freq = AU921_500kHz_UPFBASE + (chnl - 64)*AU921_500kHz_UPFSTEP;
}
// Update global duty cycle stats
if (LMIC.globalDutyRate != 0) {
ostime_t airtime = calcAirTime(LMIC.rps, LMIC.dataLen);
LMIC.globalDutyAvail = txbeg + (airtime << LMIC.globalDutyRate);
}
}
#if !defined(DISABLE_BEACONS)
void LMICau921_setBcnRxParams(void) {
LMIC.dataLen = 0;
LMIC.freq = AU921_500kHz_DNFBASE + LMIC.bcnChnl * AU921_500kHz_DNFSTEP;
LMIC.rps = setIh(setNocrc(dndr2rps((dr_t)DR_BCN), 1), LEN_BCN);
}
#endif // !DISABLE_BEACONS
// set the Rx1 dndr, rps.
void LMICau921_setRx1Params(void) {
u1_t const txdr = LMIC.dndr;
u1_t candidateDr;
LMIC.freq = AU921_500kHz_DNFBASE + (LMIC.txChnl & 0x7) * AU921_500kHz_DNFSTEP;
if ( /* TX datarate */txdr < AU921_DR_SF8C)
candidateDr = txdr + 8 - LMIC.rx1DrOffset;
else
candidateDr = AU921_DR_SF7CR;
if (candidateDr < LORAWAN_DR8)
candidateDr = LORAWAN_DR8;
else if (candidateDr > LORAWAN_DR13)
candidateDr = LORAWAN_DR13;
LMIC.dndr = candidateDr;
LMIC.rps = dndr2rps(LMIC.dndr);
}
//
// END: AU921 related stuff
//
// ================================================================================
#endif