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new_protocol.c
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/* Copyright (C)
* 2015 - John Melton, G0ORX/N6LYT
*
* 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
* of the License, 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; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
*
*/
//#define ECHO_MIC
#include <gtk/gtk.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <netinet/in.h>
#include <arpa/inet.h>
#include <netdb.h>
#include <net/if_arp.h>
#include <net/if.h>
#include <ifaddrs.h>
#include <semaphore.h>
#include <math.h>
#include <wdsp.h>
#include "alex.h"
#include "audio.h"
#include "band.h"
#include "new_protocol.h"
#include "channel.h"
#include "discovered.h"
#include "mode.h"
#include "filter.h"
#include "radio.h"
#include "receiver.h"
#include "transmitter.h"
#include "signal.h"
#include "vfo.h"
#include "toolbar.h"
#ifdef FREEDV
#include "freedv.h"
#endif
#ifdef LOCALCW
#include "iambic.h"
#endif
#include "vox.h"
#define min(x,y) (x<y?x:y)
#define PI 3.1415926535897932F
int data_socket;
static int running;
sem_t response_sem;
static struct sockaddr_in base_addr;
static int base_addr_length;
static struct sockaddr_in receiver_addr;
static int receiver_addr_length;
static struct sockaddr_in transmitter_addr;
static int transmitter_addr_length;
static struct sockaddr_in high_priority_addr;
static int high_priority_addr_length;
static struct sockaddr_in audio_addr;
static int audio_addr_length;
static struct sockaddr_in iq_addr;
static int iq_addr_length;
static struct sockaddr_in data_addr[MAX_RECEIVERS];
static int data_addr_length[MAX_RECEIVERS];
static GThread *new_protocol_thread_id;
static GThread *new_protocol_timer_thread_id;
static long rx_sequence = 0;
static long high_priority_sequence = 0;
static long general_sequence = 0;
static long rx_specific_sequence = 0;
static long tx_specific_sequence = 0;
//static int buffer_size=BUFFER_SIZE;
//static int fft_size=4096;
static int dspRate=48000;
static int outputRate=48000;
static int micSampleRate=48000;
static int micDspRate=48000;
static int micOutputRate=192000;
static int micoutputsamples; // 48000 in, 192000 out
static double micinputbuffer[MAX_BUFFER_SIZE*2]; // 48000
static double iqoutputbuffer[MAX_BUFFER_SIZE*4*2]; //192000
static long tx_iq_sequence;
static unsigned char iqbuffer[1444];
static int iqindex;
static int micsamples;
static int spectrumWIDTH=800;
static int SPECTRUM_UPDATES_PER_SECOND=10;
static float phase = 0.0F;
static long response_sequence;
static int response;
static sem_t send_high_priority_sem;
static int send_high_priority=0;
static sem_t send_general_sem;
static int send_general=0;
static int samples[MAX_RECEIVERS];
#ifdef INCLUDED
static int outputsamples;
#endif
static int leftaudiosample;
static int rightaudiosample;
static long audiosequence;
static unsigned char audiobuffer[260]; // was 1444
static int audioindex;
#ifdef FREEDV
static int freedv_samples=0;
static int freedv_resample=6; // convert from 48000 to 8000
#endif
#ifdef PSK
static int psk_samples=0;
static int psk_resample=6; // convert from 48000 to 8000
#endif
static struct sockaddr_in addr;
static int length;
static unsigned char buffer[2048];
static int bytesread;
static void new_protocol_high_priority(int run);
//static void* new_protocol_thread(void* arg);
static gpointer new_protocol_thread(gpointer data);
//static void* new_protocol_timer_thread(void* arg);
static gpointer new_protocol_timer_thread(gpointer data);
static void process_iq_data(RECEIVER *rx,unsigned char *buffer);
static void process_command_response(unsigned char *buffer);
static void process_high_priority(unsigned char *buffer);
static void process_mic_data(unsigned char *buffer,int bytes);
static void full_tx_buffer();
#ifdef INCLUDED
static void new_protocol_calc_buffers() {
switch(sample_rate) {
case 48000:
outputsamples=buffer_size;
break;
case 96000:
outputsamples=buffer_size/2;
break;
case 192000:
outputsamples=buffer_size/4;
break;
case 384000:
outputsamples=buffer_size/8;
break;
case 768000:
outputsamples=buffer_size/16;
break;
case 1536000:
outputsamples=buffer_size/32;
break;
}
}
#endif
void schedule_high_priority() {
sem_wait(&send_high_priority_sem);
send_high_priority=1;
sem_post(&send_high_priority_sem);
}
void schedule_general() {
sem_wait(&send_general_sem);
send_general=1;
sem_post(&send_general_sem);
}
void filter_board_changed() {
schedule_general();
}
/*
void pa_changed() {
schedule_general();
}
void tuner_changed() {
schedule_general();
}
*/
void cw_changed() {
#ifdef LOCALCW
// update the iambic keyer params
if (cw_keyer_internal == 0)
keyer_update();
#endif
}
void new_protocol_init(int pixels) {
int rc;
spectrumWIDTH=pixels;
fprintf(stderr,"new_protocol_init: MIC_SAMPLES=%d\n",MIC_SAMPLES);
#ifdef INCLUDED
outputsamples=buffer_size;
#endif
micoutputsamples=buffer_size*4;
#ifdef OLD_AUDIO
if(local_audio) {
if(audio_open_output()!=0) {
fprintf(stderr,"audio_open_output failed\n");
local_audio=0;
}
}
#endif
if(transmitter->local_microphone) {
if(audio_open_input()!=0) {
fprintf(stderr,"audio_open_input failed\n");
transmitter->local_microphone=0;
}
}
#ifdef INCLUDED
new_protocol_calc_buffers();
#endif
rc=sem_init(&response_sem, 0, 0);
rc=sem_init(&send_high_priority_sem, 0, 1);
rc=sem_init(&send_general_sem, 0, 1);
new_protocol_thread_id = g_thread_new( "new protocol", new_protocol_thread, NULL);
if( ! new_protocol_thread_id )
{
fprintf(stderr,"g_thread_new failed on new_protocol_thread\n");
exit( -1 );
}
fprintf(stderr, "new_protocol_thread: id=%p\n",new_protocol_thread_id);
}
static void new_protocol_general() {
unsigned char buffer[60];
BAND *band=band_get_current_band();
memset(buffer, 0, sizeof(buffer));
buffer[0]=general_sequence>>24;
buffer[1]=general_sequence>>16;
buffer[2]=general_sequence>>8;
buffer[3]=general_sequence;
// use defaults apart from
buffer[37]=0x08; // phase word (not frequency)
buffer[38]=0x01; // enable hardware timer
if(band->disablePA) {
buffer[58]=0x00;
} else {
buffer[58]=0x01; // enable PA
}
if(filter_board==APOLLO) {
buffer[58]|=0x02; // enable APOLLO tuner
}
if(filter_board==ALEX) {
if(device==NEW_DEVICE_ORION2) {
buffer[59]=0x03; // enable Alex 0 and 1
} else {
buffer[59]=0x01; // enable Alex 0
}
}
fprintf(stderr,"Alex Enable=%02X\n",buffer[59]);
if(sendto(data_socket,buffer,sizeof(buffer),0,(struct sockaddr*)&base_addr,base_addr_length)<0) {
fprintf(stderr,"sendto socket failed for general\n");
exit(1);
}
general_sequence++;
}
static void new_protocol_high_priority(int run) {
int i, r;
unsigned char buffer[1444];
BAND *band;
long long rxFrequency;
long long txFrequency;
long phase;
int mode;
memset(buffer, 0, sizeof(buffer));
buffer[0]=high_priority_sequence>>24;
buffer[1]=high_priority_sequence>>16;
buffer[2]=high_priority_sequence>>8;
buffer[3]=high_priority_sequence;
if(split) {
mode=vfo[1].mode;
} else {
mode=vfo[0].mode;
}
buffer[4]=run;
if(mode==modeCWU || mode==modeCWL) {
if(tune) {
buffer[4]|=0x02;
}
#ifdef LOCALCW
if (cw_keyer_internal == 0) {
// set the ptt if we're not in breakin mode and mox is on
if(cw_breakin == 0 && getMox()) buffer[4]|=0x02;
buffer[5]|=(keyer_out) ? 0x01 : 0;
//buffer[5]|=(*kdot) ? 0x02 : 0;
//buffer[5]|=(*kdash) ? 0x04 : 0;
buffer[5]|=(key_state==SENDDOT) ? 0x02 : 0;
buffer[5]|=(key_state==SENDDASH) ? 0x04 : 0;
}
#endif
} else {
if(isTransmitting()) {
buffer[4]|=0x02;
}
}
// rx
for(r=0;r<receivers;r++) {
//long long rxFrequency=ddsFrequency;
//rxFrequency=receiver[r]->dds_frequency;
int v=receiver[r]->id;
rxFrequency=vfo[v].frequency-vfo[v].lo;
if(vfo[v].rit_enabled) {
rxFrequency+=vfo[v].rit;
}
if(vfo[v].mode==modeCWU) {
rxFrequency-=cw_keyer_sidetone_frequency;
} else if(vfo[v].mode==modeCWL) {
rxFrequency+=cw_keyer_sidetone_frequency;
}
phase=(long)((4294967296.0*(double)rxFrequency)/122880000.0);
i=r;
//if(device==NEW_DEVICE_ORION2 && r==1) i=3;
buffer[9+(i*4)]=phase>>24;
buffer[10+(i*4)]=phase>>16;
buffer[11+(i*4)]=phase>>8;
buffer[12+(i*4)]=phase;
}
// tx
band=band_get_band(vfo[VFO_A].band);
rxFrequency=vfo[VFO_A].frequency-vfo[VFO_A].lo;
txFrequency=vfo[VFO_A].frequency-vfo[VFO_A].lo;
if(split) {
band=band_get_band(vfo[VFO_B].band);
txFrequency=vfo[VFO_B].frequency-vfo[VFO_B].lo;
}
phase=(long)((4294967296.0*(double)txFrequency)/122880000.0);
buffer[329]=phase>>24;
buffer[330]=phase>>16;
buffer[331]=phase>>8;
buffer[332]=phase;
int power=0;
if(isTransmitting()) {
if(tune) {
power=tune_drive_level;
} else {
power=drive_level;
}
}
buffer[345]=power&0xFF;
if(isTransmitting()) {
if(split) {
band=band_get_band(vfo[VFO_B].band);
} else {
band=band_get_band(vfo[VFO_A].band);
}
buffer[1401]=band->OCtx<<1;
if(tune) {
if(OCmemory_tune_time!=0) {
struct timeval te;
gettimeofday(&te,NULL);
long long now=te.tv_sec*1000LL+te.tv_usec/1000;
if(tune_timeout>now) {
buffer[1401]|=OCtune<<1;
}
} else {
buffer[1401]|=OCtune<<1;
}
}
} else {
band=band_get_band(vfo[VFO_A].band);
buffer[1401]=band->OCrx<<1;
}
if((protocol==ORIGINAL_PROTOCOL && device==DEVICE_METIS) ||
#ifdef USBOZY
(protocol==ORIGINAL_PROTOCOL && device==DEVICE_OZY) ||
#endif
(protocol==NEW_PROTOCOL && device==NEW_DEVICE_ATLAS)) {
for(r=0;r<receivers;r++) {
buffer[1403]|=receiver[i]->preamp;
}
}
long filters=0x00000000;
if(isTransmitting()) {
filters=0x08000000;
}
if(rxFrequency<1800000L) {
filters|=ALEX_BYPASS_HPF;
} else if(rxFrequency<6500000L) {
filters|=ALEX_1_5MHZ_HPF;
} else if(rxFrequency<9500000L) {
filters|=ALEX_6_5MHZ_HPF;
} else if(rxFrequency<13000000L) {
filters|=ALEX_9_5MHZ_HPF;
} else if(rxFrequency<20000000L) {
filters|=ALEX_13MHZ_HPF;
} else {
filters|=ALEX_20MHZ_HPF;
}
if(rxFrequency>30000000L) {
filters|=ALEX_6M_PREAMP;
}
if(txFrequency>32000000) {
filters|=ALEX_6_BYPASS_LPF;
} else if(txFrequency>22000000) {
filters|=ALEX_12_10_LPF;
} else if(txFrequency>15000000) {
filters|=ALEX_17_15_LPF;
} else if(txFrequency>8000000) {
filters|=ALEX_30_20_LPF;
} else if(txFrequency>4500000) {
filters|=ALEX_60_40_LPF;
} else if(txFrequency>2400000) {
filters|=ALEX_80_LPF;
} else {
filters|=ALEX_160_LPF;
}
switch(receiver[0]->alex_antenna) {
case 0: // ANT 1
break;
case 1: // ANT 2
break;
case 2: // ANT 3
break;
case 3: // EXT 1
filters|=ALEX_RX_ANTENNA_EXT2;
break;
case 4: // EXT 2
filters|=ALEX_RX_ANTENNA_EXT1;
break;
case 5: // XVTR
filters|=ALEX_RX_ANTENNA_XVTR;
break;
default:
// invalid value - set to 0
band->alexRxAntenna=0;
break;
}
if(isTransmitting()) {
switch(transmitter->alex_antenna) {
case 0: // ANT 1
filters|=ALEX_TX_ANTENNA_1;
break;
case 1: // ANT 2
filters|=ALEX_TX_ANTENNA_2;
break;
case 2: // ANT 3
filters|=ALEX_TX_ANTENNA_3;
break;
default:
// invalid value - set to 0
filters|=ALEX_TX_ANTENNA_1;
band->alexRxAntenna=0;
break;
}
} else {
switch(receiver[0]->alex_antenna) {
case 0: // ANT 1
filters|=ALEX_TX_ANTENNA_1;
break;
case 1: // ANT 2
filters|=ALEX_TX_ANTENNA_2;
break;
case 2: // ANT 3
filters|=ALEX_TX_ANTENNA_3;
break;
case 3: // EXT 1
case 4: // EXT 2
case 5: // XVTR
switch(transmitter->alex_antenna) {
case 0: // ANT 1
filters|=ALEX_TX_ANTENNA_1;
break;
case 1: // ANT 2
filters|=ALEX_TX_ANTENNA_2;
break;
case 2: // ANT 3
filters|=ALEX_TX_ANTENNA_3;
break;
}
break;
}
}
buffer[1432]=(filters>>24)&0xFF;
buffer[1433]=(filters>>16)&0xFF;
buffer[1434]=(filters>>8)&0xFF;
buffer[1435]=filters&0xFF;
//fprintf(stderr,"HPF: 0: %02X %02X for %lld\n",buffer[1434],buffer[1435],rxFrequency);
filters=0x00000000;
rxFrequency=vfo[VFO_B].frequency-vfo[VFO_B].lo;
if(rxFrequency<1800000L) {
filters|=ALEX_BYPASS_HPF;
} else if(rxFrequency<6500000L) {
filters|=ALEX_1_5MHZ_HPF;
} else if(rxFrequency<9500000L) {
filters|=ALEX_6_5MHZ_HPF;
} else if(rxFrequency<13000000L) {
filters|=ALEX_9_5MHZ_HPF;
} else if(rxFrequency<20000000L) {
filters|=ALEX_13MHZ_HPF;
} else {
filters|=ALEX_20MHZ_HPF;
}
if(rxFrequency>30000000L) {
filters|=ALEX_6M_PREAMP;
}
buffer[1428]=(filters>>24)&0xFF;
buffer[1429]=(filters>>16)&0xFF;
buffer[1430]=(filters>>8)&0xFF;
buffer[1431]=filters&0xFF;
//fprintf(stderr,"HPF: 1: %02X %02X for %lld\n",buffer[1430],buffer[1431],rxFrequency);
// rx_frequency
//fprintf(stderr,"new_protocol_high_priority: OC=%02X filters=%04X for frequency=%lld\n", buffer[1401], filters, rxFrequency);
for(r=0;r<receivers;r++) {
i=r;
//if(device==NEW_DEVICE_ORION2 && r==1) i=3;
buffer[1443-i]=receiver[r]->attenuation;
}
if(sendto(data_socket,buffer,sizeof(buffer),0,(struct sockaddr*)&high_priority_addr,high_priority_addr_length)<0) {
fprintf(stderr,"sendto socket failed for high priority\n");
exit(1);
}
high_priority_sequence++;
}
static void new_protocol_transmit_specific() {
unsigned char buffer[60];
int mode;
memset(buffer, 0, sizeof(buffer));
buffer[0]=tx_specific_sequence>>24;
buffer[1]=tx_specific_sequence>>16;
buffer[2]=tx_specific_sequence>>8;
buffer[3]=tx_specific_sequence;
if(split) {
mode=vfo[1].mode;
} else {
mode=vfo[0].mode;
}
buffer[4]=1; // 1 DAC
buffer[5]=0; // default no CW
// may be using local pihpsdr OR hpsdr CW
if(mode==modeCWU || mode==modeCWL) {
buffer[5]|=0x02;
}
if(cw_keys_reversed) {
buffer[5]|=0x04;
}
if(cw_keyer_mode==KEYER_MODE_A) {
buffer[5]|=0x08;
}
if(cw_keyer_mode==KEYER_MODE_B) {
buffer[5]|=0x28;
}
if(cw_keyer_sidetone_volume!=0) {
buffer[5]|=0x10;
}
if(cw_keyer_spacing) {
buffer[5]|=0x40;
}
if(cw_breakin) {
buffer[5]|=0x80;
}
buffer[6]=cw_keyer_sidetone_volume; // sidetone off
buffer[7]=cw_keyer_sidetone_frequency>>8;
buffer[8]=cw_keyer_sidetone_frequency; // sidetone frequency
buffer[9]=cw_keyer_speed; // cw keyer speed
buffer[10]=cw_keyer_weight; // cw weight
buffer[11]=cw_keyer_hang_time>>8;
buffer[12]=cw_keyer_hang_time; // cw hang delay
buffer[13]=0; // rf delay
buffer[50]=0;
if(mic_linein) {
buffer[50]|=0x01;
}
if(mic_boost) {
buffer[50]|=0x02;
}
if(mic_ptt_enabled==0) { // set if disabled
buffer[50]|=0x04;
}
if(mic_ptt_tip_bias_ring) {
buffer[50]|=0x08;
}
if(mic_bias_enabled) {
buffer[50]|=0x10;
}
// 0..31
buffer[51]=linein_gain;
if(sendto(data_socket,buffer,sizeof(buffer),0,(struct sockaddr*)&transmitter_addr,transmitter_addr_length)<0) {
fprintf(stderr,"sendto socket failed for tx specific\n");
exit(1);
}
tx_specific_sequence++;
}
static void new_protocol_receive_specific() {
unsigned char buffer[1444];
int i;
memset(buffer, 0, sizeof(buffer));
buffer[0]=rx_specific_sequence>>24;
buffer[1]=rx_specific_sequence>>16;
buffer[2]=rx_specific_sequence>>8;
buffer[3]=rx_specific_sequence;
buffer[4]=2; // 2 ADCs
for(i=0;i<receivers;i++) {
int r=i;
//if(device==NEW_DEVICE_ORION2 && r==1) r=3;
buffer[5]|=receiver[i]->dither<<r; // dither enable
buffer[6]|=receiver[i]->random<<r; // random enable
buffer[7]|=(1<<r); // DDC enbale
buffer[17+(r*6)]=receiver[i]->adc;
buffer[18+(r*6)]=((receiver[i]->sample_rate/1000)>>8)&0xFF;
buffer[19+(r*6)]=(receiver[i]->sample_rate/1000)&0xFF;
buffer[22+(r*6)]=24;
}
if(sendto(data_socket,buffer,sizeof(buffer),0,(struct sockaddr*)&receiver_addr,receiver_addr_length)<0) {
fprintf(stderr,"sendto socket failed for start\n");
exit(1);
}
rx_specific_sequence++;
}
static void new_protocol_start() {
running=1;
new_protocol_transmit_specific();
new_protocol_receive_specific();
new_protocol_timer_thread_id = g_thread_new( "new protocol timer", new_protocol_timer_thread, NULL);
if( ! new_protocol_timer_thread_id )
{
fprintf(stderr,"g_thread_new failed on new_protocol_timer_thread\n");
exit( -1 );
}
fprintf(stderr, "new_protocol_timer_thread: id=%p\n",new_protocol_timer_thread_id);
}
void new_protocol_stop() {
new_protocol_high_priority(0);
usleep(100000); // 100 ms
}
void new_protocol_run() {
new_protocol_high_priority(1);
}
double calibrate(int v) {
// Angelia
double v1;
v1=(double)v/4095.0*3.3;
return (v1*v1)/0.095;
}
//void* new_protocol_thread(void* arg) {
static gpointer new_protocol_thread(gpointer data) {
int i;
short sourceport;
fprintf(stderr,"new_protocol_thread\n");
micsamples=0;
iqindex=4;
data_socket=socket(PF_INET,SOCK_DGRAM,IPPROTO_UDP);
if(data_socket<0) {
fprintf(stderr,"metis: create socket failed for data_socket\n");
exit(-1);
}
int optval = 1;
setsockopt(data_socket, SOL_SOCKET, SO_REUSEADDR, &optval, sizeof(optval));
// bind to the interface
if(bind(data_socket,(struct sockaddr*)&radio->info.network.interface_address,radio->info.network.interface_length)<0) {
fprintf(stderr,"metis: bind socket failed for data_socket\n");
exit(-1);
}
memcpy(&base_addr,&radio->info.network.address,radio->info.network.address_length);
base_addr_length=radio->info.network.address_length;
base_addr.sin_port=htons(GENERAL_REGISTERS_FROM_HOST_PORT);
memcpy(&receiver_addr,&radio->info.network.address,radio->info.network.address_length);
receiver_addr_length=radio->info.network.address_length;
receiver_addr.sin_port=htons(RECEIVER_SPECIFIC_REGISTERS_FROM_HOST_PORT);
memcpy(&transmitter_addr,&radio->info.network.address,radio->info.network.address_length);
transmitter_addr_length=radio->info.network.address_length;
transmitter_addr.sin_port=htons(TRANSMITTER_SPECIFIC_REGISTERS_FROM_HOST_PORT);
memcpy(&high_priority_addr,&radio->info.network.address,radio->info.network.address_length);
high_priority_addr_length=radio->info.network.address_length;
high_priority_addr.sin_port=htons(HIGH_PRIORITY_FROM_HOST_PORT);
memcpy(&audio_addr,&radio->info.network.address,radio->info.network.address_length);
audio_addr_length=radio->info.network.address_length;
audio_addr.sin_port=htons(AUDIO_FROM_HOST_PORT);
memcpy(&iq_addr,&radio->info.network.address,radio->info.network.address_length);
iq_addr_length=radio->info.network.address_length;
iq_addr.sin_port=htons(TX_IQ_FROM_HOST_PORT);
for(i=0;i<MAX_RECEIVERS;i++) {
memcpy(&data_addr[i],&radio->info.network.address,radio->info.network.address_length);
data_addr_length[i]=radio->info.network.address_length;
data_addr[i].sin_port=htons(RX_IQ_TO_HOST_PORT_0+i);
samples[i]=0;
}
audioindex=4; // leave space for sequence
audiosequence=0L;
new_protocol_general();
new_protocol_start();
new_protocol_high_priority(1);
while(running) {
bytesread=recvfrom(data_socket,buffer,sizeof(buffer),0,(struct sockaddr*)&addr,&length);
if(bytesread<0) {
fprintf(stderr,"recvfrom socket failed for new_protocol_thread");
exit(1);
}
short sourceport=ntohs(addr.sin_port);
//fprintf(stderr,"received packet length %d from port %d\n",bytesread,sourceport);
switch(sourceport) {
case RX_IQ_TO_HOST_PORT_0:
case RX_IQ_TO_HOST_PORT_1:
case RX_IQ_TO_HOST_PORT_2:
case RX_IQ_TO_HOST_PORT_3:
case RX_IQ_TO_HOST_PORT_4:
case RX_IQ_TO_HOST_PORT_5:
case RX_IQ_TO_HOST_PORT_6:
case RX_IQ_TO_HOST_PORT_7:
i=sourceport-RX_IQ_TO_HOST_PORT_0;
//if(device==NEW_DEVICE_ORION2 && i==3) {
// i=1;
//}
process_iq_data(receiver[i],buffer);
break;
case COMMAND_RESPONCE_TO_HOST_PORT:
process_command_response(buffer);
break;
case HIGH_PRIORITY_TO_HOST_PORT:
process_high_priority(buffer);
break;
case MIC_LINE_TO_HOST_PORT:
if(!transmitter->local_microphone) {
process_mic_data(buffer,bytesread);
}
break;
default:
break;
}
if(running) {
sem_wait(&send_high_priority_sem);
if(send_high_priority==1) {
new_protocol_high_priority(1);
send_high_priority=0;
}
sem_post(&send_high_priority_sem);
sem_wait(&send_general_sem);
if(send_general==1) {
new_protocol_general();
send_general=0;
}
sem_post(&send_general_sem);
}
}
close(data_socket);
}
static void process_iq_data(RECEIVER *rx,unsigned char *buffer) {
long sequence;
long long timestamp;
int bitspersample;
int samplesperframe;
int b;
int leftsample;
int rightsample;
double leftsampledouble;
double rightsampledouble;
sequence=((buffer[0]&0xFF)<<24)+((buffer[1]&0xFF)<<16)+((buffer[2]&0xFF)<<8)+(buffer[3]&0xFF);
timestamp=((long long)(buffer[4]&0xFF)<<56)+((long long)(buffer[5]&0xFF)<<48)+((long long)(buffer[6]&0xFF)<<40)+((long long)(buffer[7]&0xFF)<<32);
((long long)(buffer[8]&0xFF)<<24)+((long long)(buffer[9]&0xFF)<<16)+((long long)(buffer[10]&0xFF)<<8)+(long long)(buffer[11]&0xFF);
bitspersample=((buffer[12]&0xFF)<<8)+(buffer[13]&0xFF);
samplesperframe=((buffer[14]&0xFF)<<8)+(buffer[15]&0xFF);
//fprintf(stderr,"process_iq_data: rx=%d seq=%ld bitspersample=%d samplesperframe=%d\n",rx->id, sequence,bitspersample,samplesperframe);
b=16;
int i;
for(i=0;i<samplesperframe;i++) {
leftsample = (int)((signed char) buffer[b++])<<16;
leftsample |= (int)((((unsigned char)buffer[b++])<<8)&0xFF00);
leftsample |= (int)((unsigned char)buffer[b++]&0xFF);
rightsample = (int)((signed char)buffer[b++]) << 16;
rightsample |= (int)((((unsigned char)buffer[b++])<<8)&0xFF00);
rightsample |= (int)((unsigned char)buffer[b++]&0xFF);
leftsampledouble=(double)leftsample/8388607.0; // for 24 bits
rightsampledouble=(double)rightsample/8388607.0; // for 24 bits
add_iq_samples(rx, leftsampledouble,rightsampledouble);
}
}
static void process_command_response(unsigned char *buffer) {
response_sequence=((buffer[0]&0xFF)<<24)+((buffer[1]&0xFF)<<16)+((buffer[2]&0xFF)<<8)+(buffer[3]&0xFF);
response=buffer[4]&0xFF;
fprintf(stderr,"response_sequence=%ld response=%d\n",response_sequence,response);
sem_post(&response_sem);
}
static void process_high_priority(unsigned char *buffer) {
long sequence;
int previous_ptt;
int previous_dot;
int previous_dash;
sequence=((buffer[0]&0xFF)<<24)+((buffer[1]&0xFF)<<16)+((buffer[2]&0xFF)<<8)+(buffer[3]&0xFF);
previous_ptt=ptt;
previous_dot=dot;
previous_dash=dash;
ptt=buffer[4]&0x01;
dot=(buffer[4]>>1)&0x01;
dash=(buffer[4]>>2)&0x01;
if(ptt!=previous_ptt) {
fprintf(stderr,"ptt=%d\n",ptt);
}
if(dot!=previous_dot) {
fprintf(stderr,"dot=%d\n",dot);
}
if(dash!=previous_dash) {
fprintf(stderr,"dash=%d\n",dash);
}
pll_locked=(buffer[4]>>3)&0x01;
adc_overload=buffer[5]&0x01;
exciter_power=((buffer[6]&0xFF)<<8)|(buffer[7]&0xFF);
alex_forward_power=((buffer[14]&0xFF)<<8)|(buffer[15]&0xFF);
alex_reverse_power=((buffer[22]&0xFF)<<8)|(buffer[23]&0xFF);
supply_volts=((buffer[49]&0xFF)<<8)|(buffer[50]&0xFF);
if(previous_ptt!=ptt) {
g_idle_add(ptt_update,(gpointer)ptt);
}
}
static void process_mic_data(unsigned char *buffer,int bytes) {
long sequence;
int b;
short sample;
sequence=((buffer[0]&0xFF)<<24)+((buffer[1]&0xFF)<<16)+((buffer[2]&0xFF)<<8)+(buffer[3]&0xFF);
b=4;
int i;
for(i=0;i<MIC_SAMPLES;i++) {
sample=(short)((buffer[b++]<<8) | (buffer[b++]&0xFF));
add_mic_sample(transmitter,sample);
}
}
void new_protocol_audio_samples(RECEIVER *rx,short left_audio_sample,short right_audio_sample) {
int rc;
// insert the samples
audiobuffer[audioindex++]=left_audio_sample>>8;
audiobuffer[audioindex++]=left_audio_sample;
audiobuffer[audioindex++]=right_audio_sample>>8;
audiobuffer[audioindex++]=right_audio_sample;
if(audioindex>=sizeof(audiobuffer)) {
// insert the sequence
audiobuffer[0]=audiosequence>>24;
audiobuffer[1]=audiosequence>>16;
audiobuffer[2]=audiosequence>>8;
audiobuffer[3]=audiosequence;
// send the buffer
rc=sendto(data_socket,audiobuffer,sizeof(audiobuffer),0,(struct sockaddr*)&audio_addr,audio_addr_length);