/*
This project is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
Multiprotocol is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with Multiprotocol. If not, see <http://www.gnu.org/licenses/>.
*/
#if defined(REDPINE_CC2500_INO)
#include "iface_cc2500.h"
#define REDPINE_LOOPTIME_FAST 25 //2.5ms
#define REDPINE_LOOPTIME_SLOW 6 //6ms
#define REDPINE_BIND 1000
#define REDPINE_PACKET_SIZE 11
#define REDPINE_FEC false // from cc2500 datasheet: The convolutional coder is a rate 1/2 code with a constraint length of m=4
#define REDPINE_NUM_HOPS 50
static void REDPINE_set_channel(uint8_t ch)
{
CC2500_Strobe(CC2500_SIDLE);
CC2500_WriteReg(CC2500_25_FSCAL1, calData[ch]);
CC2500_WriteReg(CC2500_0A_CHANNR, hopping_frequency[ch]);
}
static void REDPINE_build_bind_packet()
{
memset(&packet[0], 0, REDPINE_PACKET_SIZE);
packet[0] = REDPINE_PACKET_SIZE - 1;
packet[1] = 0x03;
packet[2] = 0x01;
packet[3] = rx_tx_addr[2];
packet[4] = rx_tx_addr[3]; // Use RX_Num
uint16_t idx = ((REDPINE_BIND - bind_counter) % 10) * 5;
packet[5] = idx;
packet[6] = hopping_frequency[idx++];
packet[7] = hopping_frequency[idx++];
packet[8] = hopping_frequency[idx++];
packet[9] = hopping_frequency[idx++];
packet[10] = hopping_frequency[idx++];
// packet[11] = 0x02;
// packet[12] = RXNUM;
}
static uint16_t Redpine_Scale(uint8_t chan)
{
uint16_t chan_val=Channel_data[chan]; // -125%..+125% <=> 0..2047
if (chan_val > 2046) chan_val = 2046;
else if (chan_val < 10) chan_val = 10;
return chan_val;
}
static void REDPINE_data_frame() {
uint16_t chan[4];
memset(&packet[0], 0, REDPINE_PACKET_SIZE);
packet[0] = REDPINE_PACKET_SIZE - 1;
packet[1] = rx_tx_addr[2];
packet[2] = rx_tx_addr[3]; // Use RX_Num
chan[0] = Redpine_Scale(0);
chan[1] = Redpine_Scale(1);
chan[2] = Redpine_Scale(2);
chan[3] = Redpine_Scale(3);
packet[3] = chan[0];
packet[4] = (((chan[0] >> 8) & 0x07) | (chan[1] << 4)) | GET_FLAG(CH5_SW, 0x08);
packet[5] = ((chan[1] >> 4) & 0x7F) | GET_FLAG(CH6_SW, 0x80);
packet[6] = chan[2];
packet[7] = (((chan[2] >> 8) & 0x07) | (chan[3] << 4)) | GET_FLAG(CH7_SW, 0x08);
packet[8] = ((chan[3] >> 4) & 0x7F) | GET_FLAG(CH8_SW, 0x80);
packet[9] = GET_FLAG(CH9_SW, 0x01)
| GET_FLAG(CH10_SW, 0x02)
| GET_FLAG(CH11_SW, 0x04)
| GET_FLAG(CH12_SW, 0x08)
| GET_FLAG(CH13_SW, 0x10)
| GET_FLAG(CH14_SW, 0x20)
| GET_FLAG(CH15_SW, 0x40)
| GET_FLAG(CH16_SW, 0x80);
if (sub_protocol==0)
packet[10] = REDPINE_LOOPTIME_FAST;
else
packet[10] = REDPINE_LOOPTIME_SLOW;
}
static uint16_t ReadREDPINE()
{
if ( prev_option != option )
{ // Frequency adjust
CC2500_WriteReg(CC2500_0C_FSCTRL0, option);
prev_option = option ;
}
if(IS_BIND_IN_PROGRESS)
{
if(bind_counter == REDPINE_BIND)
REDPINE_init(0);
if(bind_counter == REDPINE_BIND/2)
REDPINE_init(1);
REDPINE_set_channel(49);
CC2500_SetTxRxMode(TX_EN);
CC2500_SetPower();
CC2500_Strobe(CC2500_SFRX);
REDPINE_build_bind_packet();
CC2500_Strobe(CC2500_SIDLE);
CC2500_WriteData(packet, REDPINE_PACKET_SIZE);
if(--bind_counter==0)
{
BIND_DONE;
REDPINE_init(sub_protocol);
}
return 9000;
}
else
{
CC2500_SetTxRxMode(TX_EN);
REDPINE_set_channel(hopping_frequency_no);
CC2500_SetPower();
CC2500_Strobe(CC2500_SFRX);
REDPINE_data_frame();
CC2500_Strobe(CC2500_SIDLE);
hopping_frequency_no = (hopping_frequency_no + 1) % 49;
CC2500_WriteData(packet, REDPINE_PACKET_SIZE);
if (sub_protocol==0)
return REDPINE_LOOPTIME_FAST*100;
else
return REDPINE_LOOPTIME_SLOW*1000;
}
return 1;
}
// register, fast 250k, slow
static const uint8_t REDPINE_init_data[][3] = {
{CC2500_00_IOCFG2, 0x06, 0x06},
{CC2500_02_IOCFG0, 0x06, 0x06},
{CC2500_03_FIFOTHR, 0x07, 0x07},
{CC2500_07_PKTCTRL1, 0x04, 0x04},
{CC2500_08_PKTCTRL0, 0x05, 0x05},
{CC2500_09_ADDR, 0x00, 0x00},
{CC2500_0B_FSCTRL1, 0x0A, 0x0A},
{CC2500_0C_FSCTRL0, 0x00, 0x00},
{CC2500_0D_FREQ2, 0x5D, 0x5c},
{CC2500_0E_FREQ1, 0x93, 0x76},
{CC2500_0F_FREQ0, 0xB1, 0x27},
{CC2500_10_MDMCFG4, 0x2D, 0x7B},
{CC2500_11_MDMCFG3, 0x3B, 0x61},
{CC2500_12_MDMCFG2, 0x73, 0x13},
#ifdef REDPINE_FEC
{CC2500_13_MDMCFG1, 0xA3, 0xA3},
#else
{CC2500_13_MDMCFG1, 0x23, 0x23},
#endif
{CC2500_14_MDMCFG0, 0x56, 0x7a}, // Chan space
{CC2500_15_DEVIATN, 0x00, 0x51},
{CC2500_17_MCSM1, 0x0c, 0x0c},
{CC2500_18_MCSM0, 0x08, 0x08}, //??? 0x18, 0x18},
{CC2500_19_FOCCFG, 0x1D, 0x16},
{CC2500_1A_BSCFG, 0x1C, 0x6c},
{CC2500_1B_AGCCTRL2, 0xC7, 0x43},
{CC2500_1C_AGCCTRL1, 0x00, 0x40},
{CC2500_1D_AGCCTRL0, 0xB0, 0x91},
{CC2500_21_FREND1, 0xB6, 0x56},
{CC2500_22_FREND0, 0x10, 0x10},
{CC2500_23_FSCAL3, 0xEA, 0xA9},
{CC2500_24_FSCAL2, 0x0A, 0x0A},
{CC2500_25_FSCAL1, 0x00, 0x00},
{CC2500_26_FSCAL0, 0x11, 0x11},
{CC2500_29_FSTEST, 0x59, 0x59},
{CC2500_2C_TEST2, 0x88, 0x88},
{CC2500_2D_TEST1, 0x31, 0x31},
{CC2500_2E_TEST0, 0x0B, 0x0B},
{CC2500_3E_PATABLE, 0xff, 0xff}
};
static void REDPINE_init(uint8_t format)
{
CC2500_Reset();
CC2500_WriteReg(CC2500_06_PKTLEN, REDPINE_PACKET_SIZE);
for (uint8_t i=0; i < ((sizeof REDPINE_init_data) / (sizeof REDPINE_init_data[0])); i++)
CC2500_WriteReg(REDPINE_init_data[i][0], REDPINE_init_data[i][format+1]);
prev_option = option;
CC2500_WriteReg(CC2500_0C_FSCTRL0, option);
CC2500_Strobe(CC2500_SIDLE);
// calibrate hop channels
for (uint8_t c = 0; c < REDPINE_NUM_HOPS; c++)
{
CC2500_Strobe(CC2500_SIDLE);
CC2500_WriteReg(CC2500_0A_CHANNR, hopping_frequency[c]);
CC2500_Strobe(CC2500_SCAL);
delayMicroseconds(900);
calData[c] = CC2500_ReadReg(CC2500_25_FSCAL1);
}
}
static uint16_t initREDPINE()
{
hopping_frequency_no = 0;
// Used from kn_nrf24l01.c : kn_calculate_freqency_hopping_channels
uint32_t idx = 0;
uint32_t rnd = MProtocol_id;
#define REDPINE_MAX_RF_CHANNEL 255
hopping_frequency[idx++] = 1;
while (idx < REDPINE_NUM_HOPS-1)
{
uint32_t i;
rnd = rnd * 0x0019660D + 0x3C6EF35F; // Randomization
// Drop least-significant byte for better randomization. Start from 1
uint8_t next_ch = (rnd >> 8) % REDPINE_MAX_RF_CHANNEL + 1;
// Check that it's not duplicate nor adjacent nor channel 0 or 1
for (i = 0; i < idx; i++)
{
uint8_t ch = hopping_frequency[i];
if ((ch <= next_ch + 1) && (ch >= next_ch - 1) && (ch > 1))
break;
}
if (i != idx)
continue;
hopping_frequency[idx++] = next_ch;
}
hopping_frequency[49] = 0; // Last channel is the bind channel at hop 0
bind_counter=REDPINE_BIND;
REDPINE_init(sub_protocol);
CC2500_SetTxRxMode(TX_EN); // enable PA
return 10000;
}
#endif