mirror of
https://github.com/portapack-mayhem/mayhem-firmware.git
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Formatted code (#1007)
* Updated style * Updated files * fixed new line * Updated spacing * File fix WIP * Updated to clang 13 * updated comment style * Removed old comment code
This commit is contained in:
jLynx
@@ -27,257 +27,231 @@
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#include "event_m4.hpp"
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void NRFRxProcessor::execute(const buffer_c8_t& buffer) {
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if (!configured) return;
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// FM demodulation
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if (!configured) return;
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const auto decim_0_out = decim_0.execute(buffer, dst_buffer);
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feed_channel_stats(decim_0_out);
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auto audio_oversampled = demod.execute(decim_0_out, work_audio_buffer);
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// Audio signal processing
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for (size_t c = 0; c < audio_oversampled.count; c++) {
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int g_srate = 4; //4 for 250KPS
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//int g_srate = 1; //1 for 1MPS, not working yet
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int32_t current_sample = audio_oversampled.p[c]; //if I directly use this, some results can pass crc but not correct.
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rb_head++;
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rb_head=(rb_head)%RB_SIZE;
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// FM demodulation
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rb_buf[rb_head] = current_sample;
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const auto decim_0_out = decim_0.execute(buffer, dst_buffer);
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feed_channel_stats(decim_0_out);
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skipSamples = skipSamples - 1;
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auto audio_oversampled = demod.execute(decim_0_out, work_audio_buffer);
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// Audio signal processing
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for (size_t c = 0; c < audio_oversampled.count; c++) {
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int g_srate = 4; // 4 for 250KPS
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// int g_srate = 1; //1 for 1MPS, not working yet
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int32_t current_sample = audio_oversampled.p[c]; // if I directly use this, some results can pass crc but not correct.
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rb_head++;
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rb_head = (rb_head) % RB_SIZE;
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if (skipSamples<1)
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{
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int32_t threshold_tmp=0;
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for (int c=0;c<8*g_srate;c++)
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{
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threshold_tmp = threshold_tmp + (int32_t)rb_buf[(rb_head+c)%RB_SIZE];
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}
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rb_buf[rb_head] = current_sample;
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g_threshold = (int32_t)threshold_tmp/(8*g_srate);
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int transitions=0;
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if (rb_buf[(rb_head + 9*g_srate)%RB_SIZE] > g_threshold)
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{
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for (int c=0;c<8;c++)
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{
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if (rb_buf[(rb_head + c*g_srate)%RB_SIZE] > rb_buf[(rb_head + (c+1)*g_srate)%RB_SIZE])
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transitions = transitions + 1;
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}
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}
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else
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{
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for (int c=0;c<8;c++)
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{
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if (rb_buf[(rb_head + c*g_srate)%RB_SIZE] < rb_buf[(rb_head + (c+1)*g_srate)%RB_SIZE])
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transitions = transitions + 1;
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}
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}
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bool packet_detected=false;
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//if ( transitions==4 && abs(g_threshold)<15500)
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if ( transitions==4 && abs(g_threshold)<15500)
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{
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int packet_length = 0;
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uint8_t tmp_buf[10];
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uint8_t packet_data[500];
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uint8_t packet_packed[50];
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uint16_t pcf;
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uint32_t packet_crc;
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uint32_t calced_crc;
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uint64_t packet_addr_l;
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skipSamples = skipSamples - 1;
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/* extract address */
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packet_addr_l=0;
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if (skipSamples < 1) {
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int32_t threshold_tmp = 0;
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for (int c = 0; c < 8 * g_srate; c++) {
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threshold_tmp = threshold_tmp + (int32_t)rb_buf[(rb_head + c) % RB_SIZE];
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}
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for (int t=0;t<5;t++)
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{
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bool current_bit;
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uint8_t byte=0;
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for (int c=0;c<8;c++)
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{
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if (rb_buf[(rb_head+(1*8+t*8+c)*g_srate)%RB_SIZE] > g_threshold)
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current_bit = true;
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else
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current_bit = false;
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byte |= current_bit << (7-c);
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}
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tmp_buf[t]=byte;
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}
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g_threshold = (int32_t)threshold_tmp / (8 * g_srate);
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for (int t=0;t<5;t++) packet_addr_l|=((uint64_t)tmp_buf[t])<<(4-t)*8;
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int transitions = 0;
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if (rb_buf[(rb_head + 9 * g_srate) % RB_SIZE] > g_threshold) {
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for (int c = 0; c < 8; c++) {
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if (rb_buf[(rb_head + c * g_srate) % RB_SIZE] > rb_buf[(rb_head + (c + 1) * g_srate) % RB_SIZE])
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transitions = transitions + 1;
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}
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} else {
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for (int c = 0; c < 8; c++) {
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if (rb_buf[(rb_head + c * g_srate) % RB_SIZE] < rb_buf[(rb_head + (c + 1) * g_srate) % RB_SIZE])
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transitions = transitions + 1;
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}
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}
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//channel_number = 26;
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bool packet_detected = false;
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// if ( transitions==4 && abs(g_threshold)<15500)
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if (transitions == 4 && abs(g_threshold) < 15500) {
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int packet_length = 0;
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uint8_t tmp_buf[10];
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uint8_t packet_data[500];
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uint8_t packet_packed[50];
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uint16_t pcf;
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uint32_t packet_crc;
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uint32_t calced_crc;
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uint64_t packet_addr_l;
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/* extract pcf */
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for (int t=0;t<2;t++)
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{
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bool current_bit;
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uint8_t byte=0;
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for (int c=0;c<8;c++)
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{
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if (rb_buf[(rb_head+(6*8+t*8+c)*g_srate)%RB_SIZE] > g_threshold)
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current_bit = true;
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else
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current_bit = false;
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byte |= current_bit << (7-c);
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}
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tmp_buf[t]=byte;
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}
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/* extract address */
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packet_addr_l = 0;
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pcf = tmp_buf[0]<<8 | tmp_buf[1];
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pcf >>=7;
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for (int t = 0; t < 5; t++) {
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bool current_bit;
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uint8_t byte = 0;
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for (int c = 0; c < 8; c++) {
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if (rb_buf[(rb_head + (1 * 8 + t * 8 + c) * g_srate) % RB_SIZE] > g_threshold)
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current_bit = true;
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else
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current_bit = false;
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byte |= current_bit << (7 - c);
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}
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tmp_buf[t] = byte;
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}
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/* extract packet length, avoid excessive length packets */
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if(packet_length == 0)
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packet_length=(int)pcf>>3;
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if (packet_length>32)
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packet_detected = false;
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for (int t = 0; t < 5; t++) packet_addr_l |= ((uint64_t)tmp_buf[t]) << (4 - t) * 8;
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/* extract data */
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for (int t=0;t<packet_length;t++)
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{
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bool current_bit;
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uint8_t byte=0;
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for (int c=0;c<8;c++)
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{
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if (rb_buf[(rb_head+(6*8+9+t*8+c)*g_srate)%RB_SIZE] > g_threshold)
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current_bit = true;
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else
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current_bit = false;
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byte |= current_bit << (7-c);
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}
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packet_data[t]=byte;
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}
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// channel_number = 26;
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/* Prepare packed bit stream for CRC calculation */
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uint64_t packet_header=packet_addr_l;
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packet_header<<=9;
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packet_header|=pcf;
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for (int c=0;c<7;c++){
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packet_packed[c]=(packet_header>>((6-c)*8))&0xFF;
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}
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/* extract pcf */
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for (int t = 0; t < 2; t++) {
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bool current_bit;
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uint8_t byte = 0;
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for (int c = 0; c < 8; c++) {
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if (rb_buf[(rb_head + (6 * 8 + t * 8 + c) * g_srate) % RB_SIZE] > g_threshold)
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current_bit = true;
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else
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current_bit = false;
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byte |= current_bit << (7 - c);
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}
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tmp_buf[t] = byte;
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}
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for (int c=0;c<packet_length;c++){
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packet_packed[c+7]=packet_data[c];
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}
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pcf = tmp_buf[0] << 8 | tmp_buf[1];
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pcf >>= 7;
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/* calculate packet crc */
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const uint8_t* data = packet_packed;
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size_t data_len = 7+packet_length;
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bool bit;
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uint8_t cc;
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uint_fast16_t crc=0x3C18;
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while (data_len--) {
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cc = *data++;
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for (uint8_t i = 0x80; i > 0; i >>= 1)
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{
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bit = crc & 0x8000;
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if (cc & i)
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{
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bit = !bit;
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}
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crc <<= 1;
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if (bit)
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{
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crc ^= 0x1021;
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}
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}
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crc &= 0xffff;
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}
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calced_crc = (uint16_t)(crc & 0xffff);
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/* extract packet length, avoid excessive length packets */
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if (packet_length == 0)
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packet_length = (int)pcf >> 3;
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if (packet_length > 32)
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packet_detected = false;
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/* extract crc */
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for (int t=0;t<2;t++)
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{
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bool current_bit;
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uint8_t byte=0;
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for (int c=0;c<8;c++)
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{
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if (rb_buf[(rb_head+((6+packet_length)*8+9+t*8+c)*g_srate)%RB_SIZE] > g_threshold)
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current_bit = true;
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else
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current_bit = false;
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byte |= current_bit << (7-c);
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}
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tmp_buf[t]=byte;
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}
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packet_crc = tmp_buf[0]<<8 | tmp_buf[1];
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/* extract data */
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for (int t = 0; t < packet_length; t++) {
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bool current_bit;
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uint8_t byte = 0;
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for (int c = 0; c < 8; c++) {
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if (rb_buf[(rb_head + (6 * 8 + 9 + t * 8 + c) * g_srate) % RB_SIZE] > g_threshold)
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current_bit = true;
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else
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current_bit = false;
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byte |= current_bit << (7 - c);
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}
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packet_data[t] = byte;
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}
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/* NRF24L01+ packet found, dump information */
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//if (packet_addr_l==0xE7E7E7E7)
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if (packet_crc==calced_crc)
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{
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data_message.is_data = false;
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data_message.value = 'A';
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shared_memory.application_queue.push(data_message);
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/* Prepare packed bit stream for CRC calculation */
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uint64_t packet_header = packet_addr_l;
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packet_header <<= 9;
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packet_header |= pcf;
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for (int c = 0; c < 7; c++) {
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packet_packed[c] = (packet_header >> ((6 - c) * 8)) & 0xFF;
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}
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data_message.is_data = true;
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data_message.value = packet_addr_l;
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shared_memory.application_queue.push(data_message);
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for (int c = 0; c < packet_length; c++) {
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packet_packed[c + 7] = packet_data[c];
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}
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for (int c=0;c<7;c++)
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{
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data_message.is_data = true;
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data_message.value = packet_addr_l >> 8;
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shared_memory.application_queue.push(data_message);
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}
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/*data_message.is_data = true;
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data_message.value = packet_addr_l;
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shared_memory.application_queue.push(data_message);
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/* calculate packet crc */
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const uint8_t* data = packet_packed;
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size_t data_len = 7 + packet_length;
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bool bit;
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uint8_t cc;
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uint_fast16_t crc = 0x3C18;
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while (data_len--) {
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cc = *data++;
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for (uint8_t i = 0x80; i > 0; i >>= 1) {
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bit = crc & 0x8000;
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if (cc & i) {
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bit = !bit;
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}
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crc <<= 1;
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if (bit) {
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crc ^= 0x1021;
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}
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}
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crc &= 0xffff;
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}
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calced_crc = (uint16_t)(crc & 0xffff);
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data_message.is_data = true;
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data_message.value = packet_addr_l >> 8;
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shared_memory.application_queue.push(data_message);*/
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/* extract crc */
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for (int t = 0; t < 2; t++) {
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bool current_bit;
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uint8_t byte = 0;
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for (int c = 0; c < 8; c++) {
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if (rb_buf[(rb_head + ((6 + packet_length) * 8 + 9 + t * 8 + c) * g_srate) % RB_SIZE] > g_threshold)
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current_bit = true;
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else
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current_bit = false;
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byte |= current_bit << (7 - c);
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}
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tmp_buf[t] = byte;
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}
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packet_crc = tmp_buf[0] << 8 | tmp_buf[1];
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data_message.is_data = false;
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data_message.value = 'B';
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shared_memory.application_queue.push(data_message);
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/* NRF24L01+ packet found, dump information */
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// if (packet_addr_l==0xE7E7E7E7)
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if (packet_crc == calced_crc) {
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data_message.is_data = false;
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data_message.value = 'A';
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shared_memory.application_queue.push(data_message);
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for (int c=0;c<packet_length;c++)
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{
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data_message.is_data = true;
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data_message.value = packet_data[c];
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shared_memory.application_queue.push(data_message);
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}
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data_message.is_data = true;
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data_message.value = packet_addr_l;
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shared_memory.application_queue.push(data_message);
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data_message.is_data = false;
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data_message.value = 'C';
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shared_memory.application_queue.push(data_message);
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for (int c = 0; c < 7; c++) {
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data_message.is_data = true;
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data_message.value = packet_addr_l >> 8;
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shared_memory.application_queue.push(data_message);
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}
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/*data_message.is_data = true;
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data_message.value = packet_addr_l;
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shared_memory.application_queue.push(data_message);
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data_message.is_data = true;
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data_message.value = packet_addr_l >> 8;
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shared_memory.application_queue.push(data_message);*/
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packet_detected = true;
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}
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else
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packet_detected = false;
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}
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data_message.is_data = false;
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data_message.value = 'B';
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shared_memory.application_queue.push(data_message);
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if (packet_detected)
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{
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skipSamples=20;
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}
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}
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}
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for (int c = 0; c < packet_length; c++) {
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data_message.is_data = true;
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data_message.value = packet_data[c];
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shared_memory.application_queue.push(data_message);
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}
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data_message.is_data = false;
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data_message.value = 'C';
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shared_memory.application_queue.push(data_message);
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packet_detected = true;
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} else
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packet_detected = false;
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}
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if (packet_detected) {
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skipSamples = 20;
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}
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}
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}
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}
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void NRFRxProcessor::on_message(const Message* const message) {
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if (message->id == Message::ID::NRFRxConfigure)
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configure(*reinterpret_cast<const NRFRxConfigureMessage*>(message));
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if (message->id == Message::ID::NRFRxConfigure)
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configure(*reinterpret_cast<const NRFRxConfigureMessage*>(message));
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}
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void NRFRxProcessor::configure(const NRFRxConfigureMessage& message) {
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(void)message; //avoir unused warning
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decim_0.configure(taps_200k_wfm_decim_0.taps, 33554432);
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decim_1.configure(taps_200k_wfm_decim_1.taps, 131072);
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demod.configure(audio_fs, 5000);
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void NRFRxProcessor::configure(const NRFRxConfigureMessage& message) {
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(void)message; // avoir unused warning
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decim_0.configure(taps_200k_wfm_decim_0.taps, 33554432);
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decim_1.configure(taps_200k_wfm_decim_1.taps, 131072);
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demod.configure(audio_fs, 5000);
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configured = true;
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configured = true;
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}
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int main() {
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EventDispatcher event_dispatcher { std::make_unique<NRFRxProcessor>() };
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event_dispatcher.run();
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return 0;
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EventDispatcher event_dispatcher{std::make_unique<NRFRxProcessor>()};
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event_dispatcher.run();
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return 0;
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}
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Reference in New Issue
Block a user