mirror of
https://github.com/portapack-mayhem/mayhem-firmware.git
synced 2024-12-15 12:38:11 +00:00
140 lines
5.0 KiB
C++
140 lines
5.0 KiB
C++
/*
|
|
* Copyright (C) 2015 Jared Boone, ShareBrained Technology, Inc.
|
|
* Copyright (C) 2016 Furrtek
|
|
*
|
|
* This file is part of PortaPack.
|
|
*
|
|
* This program 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 2, or (at your option)
|
|
* any later version.
|
|
*
|
|
* This program 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 this program; see the file COPYING. If not, write to
|
|
* the Free Software Foundation, Inc., 51 Franklin Street,
|
|
* Boston, MA 02110-1301, USA.
|
|
*/
|
|
|
|
#ifndef __PROC_RDS_H__
|
|
#define __PROC_RDS_H__
|
|
|
|
#include "baseband_processor.hpp"
|
|
#include "baseband_thread.hpp"
|
|
|
|
#define SAMPLES_PER_BIT 192
|
|
#define FILTER_SIZE 576
|
|
#define SAMPLE_BUFFER_SIZE SAMPLES_PER_BIT + FILTER_SIZE
|
|
|
|
class RDSProcessor : public BasebandProcessor {
|
|
public:
|
|
void execute(const buffer_c8_t& buffer) override;
|
|
|
|
void on_message(const Message* const msg) override;
|
|
|
|
private:
|
|
uint32_t * rdsdata { };
|
|
|
|
BasebandThread baseband_thread { 2280000, this, NORMALPRIO + 20, baseband::Direction::Transmit };
|
|
|
|
uint16_t message_length { 0 };
|
|
int8_t re { 0 }, im { 0 };
|
|
uint8_t mphase { 0 }, s { 0 };
|
|
uint32_t bit_pos { 0 };
|
|
int32_t sample_buffer[SAMPLE_BUFFER_SIZE] = {0};
|
|
int32_t val { 0 };
|
|
uint8_t prev_output { 0 };
|
|
uint8_t cur_output { 0 };
|
|
uint8_t cur_bit { 0 };
|
|
int sample_count = SAMPLES_PER_BIT;
|
|
int in_sample_index = 0;
|
|
int32_t sample { 0 };
|
|
int out_sample_index = SAMPLE_BUFFER_SIZE - 1;
|
|
uint32_t phase { 0 }, sphase { 0 };
|
|
int32_t delta { 0 };
|
|
|
|
bool configured { false };
|
|
|
|
const int32_t waveform_biphase[576] = {
|
|
165,167,168,168,167,166,163,160,
|
|
157,152,147,141,134,126,118,109,
|
|
99,88,77,66,53,41,27,14,
|
|
0,-14,-29,-44,-59,-74,-89,-105,
|
|
-120,-135,-150,-165,-179,-193,-206,-218,
|
|
-231,-242,-252,-262,-271,-279,-286,-291,
|
|
-296,-299,-301,-302,-302,-300,-297,-292,
|
|
-286,-278,-269,-259,-247,-233,-219,-202,
|
|
-185,-166,-145,-124,-101,-77,-52,-26,
|
|
0,27,56,85,114,144,175,205,
|
|
236,266,296,326,356,384,412,439,
|
|
465,490,513,535,555,574,590,604,
|
|
616,626,633,637,639,638,633,626,
|
|
616,602,586,565,542,515,485,451,
|
|
414,373,329,282,232,178,121,62,
|
|
0,-65,-132,-202,-274,-347,-423,-500,
|
|
-578,-656,-736,-815,-894,-973,-1051,-1128,
|
|
-1203,-1276,-1347,-1415,-1479,-1540,-1596,-1648,
|
|
-1695,-1736,-1771,-1799,-1820,-1833,-1838,-1835,
|
|
-1822,-1800,-1767,-1724,-1670,-1605,-1527,-1437,
|
|
-1334,-1217,-1087,-943,-785,-611,-423,-219,
|
|
0,235,487,755,1040,1341,1659,1994,
|
|
2346,2715,3101,3504,3923,4359,4811,5280,
|
|
5764,6264,6780,7310,7856,8415,8987,9573,
|
|
10172,10782,11404,12036,12678,13329,13989,14656,
|
|
15330,16009,16694,17382,18074,18767,19461,20155,
|
|
20848,21539,22226,22909,23586,24256,24918,25571,
|
|
26214,26845,27464,28068,28658,29231,29787,30325,
|
|
30842,31339,31814,32266,32694,33097,33473,33823,
|
|
34144,34437,34699,34931,35131,35299,35434,35535,
|
|
35602,35634,35630,35591,35515,35402,35252,35065,
|
|
34841,34579,34279,33941,33566,33153,32702,32214,
|
|
31689,31128,30530,29897,29228,28525,27788,27017,
|
|
26214,25379,24513,23617,22693,21740,20761,19755,
|
|
18725,17672,16597,15501,14385,13251,12101,10935,
|
|
9755,8563,7360,6148,4927,3701,2470,1235,
|
|
0,-1235,-2470,-3701,-4927,-6148,-7360,-8563,
|
|
-9755,-10935,-12101,-13251,-14385,-15501,-16597,-17672,
|
|
-18725,-19755,-20761,-21740,-22693,-23617,-24513,-25379,
|
|
-26214,-27017,-27788,-28525,-29228,-29897,-30530,-31128,
|
|
-31689,-32214,-32702,-33153,-33566,-33941,-34279,-34579,
|
|
-34841,-35065,-35252,-35402,-35515,-35591,-35630,-35634,
|
|
-35602,-35535,-35434,-35299,-35131,-34931,-34699,-34437,
|
|
-34144,-33823,-33473,-33097,-32694,-32266,-31814,-31339,
|
|
-30842,-30325,-29787,-29231,-28658,-28068,-27464,-26845,
|
|
-26214,-25571,-24918,-24256,-23586,-22909,-22226,-21539,
|
|
-20848,-20155,-19461,-18767,-18074,-17382,-16694,-16009,
|
|
-15330,-14656,-13989,-13329,-12678,-12036,-11404,-10782,
|
|
-10172,-9573,-8987,-8415,-7856,-7310,-6780,-6264,
|
|
-5764,-5280,-4811,-4359,-3923,-3504,-3101,-2715,
|
|
-2346,-1994,-1659,-1341,-1040,-755,-487,-235,
|
|
0,219,423,611,785,943,1087,1217,
|
|
1334,1437,1527,1605,1670,1724,1767,1800,
|
|
1822,1835,1838,1833,1820,1799,1771,1736,
|
|
1695,1648,1596,1540,1479,1415,1347,1276,
|
|
1203,1128,1051,973,894,815,736,656,
|
|
578,500,423,347,274,202,132,65,
|
|
0,-62,-121,-178,-232,-282,-329,-373,
|
|
-414,-451,-485,-515,-542,-565,-586,-602,
|
|
-616,-626,-633,-638,-639,-637,-633,-626,
|
|
-616,-604,-590,-574,-555,-535,-513,-490,
|
|
-465,-439,-412,-384,-356,-326,-296,-266,
|
|
-236,-205,-175,-144,-114,-85,-56,-27,
|
|
0,26,52,77,101,124,145,166,
|
|
185,202,219,233,247,259,269,278,
|
|
286,292,297,300,302,302,301,299,
|
|
296,291,286,279,271,262,252,242,
|
|
231,218,206,193,179,165,150,135,
|
|
120,105,89,74,59,44,29,14,
|
|
0,-14,-27,-41,-53,-66,-77,-88,
|
|
-99,-109,-118,-126,-134,-141,-147,-152,
|
|
-157,-160,-163,-166,-167,-168,-168,-167
|
|
};
|
|
|
|
};
|
|
|
|
#endif
|