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old_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.
*
*/
#include <gtk/gtk.h>
#include <stdlib.h>
#include <stdio.h>
#include <sys/types.h>
#include <sys/socket.h>
#include <sys/ioctl.h>
#include <sys/time.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 <string.h>
#include <errno.h>
#include <math.h>
#include <wdsp.h>
#include "audio.h"
#include "band.h"
#include "channel.h"
#include "discovered.h"
#include "mode.h"
#include "filter.h"
#include "old_protocol.h"
#include "radio.h"
#include "receiver.h"
#include "transmitter.h"
#include "signal.h"
#include "toolbar.h"
#include "vfo.h"
#include "ext.h"
#include "iambic.h"
#include "error_handler.h"
#define min(x,y) (x<y?x:y)
#define SYNC0 0
#define SYNC1 1
#define SYNC2 2
#define C0 3
#define C1 4
#define C2 5
#define C3 6
#define C4 7
#define DATA_PORT 1024
#define SYNC 0x7F
#define OZY_BUFFER_SIZE 512
//#define OUTPUT_BUFFER_SIZE 1024
// ozy command and control
#define MOX_DISABLED 0x00
#define MOX_ENABLED 0x01
#define MIC_SOURCE_JANUS 0x00
#define MIC_SOURCE_PENELOPE 0x80
#define CONFIG_NONE 0x00
#define CONFIG_PENELOPE 0x20
#define CONFIG_MERCURY 0x40
#define CONFIG_BOTH 0x60
#define PENELOPE_122_88MHZ_SOURCE 0x00
#define MERCURY_122_88MHZ_SOURCE 0x10
#define ATLAS_10MHZ_SOURCE 0x00
#define PENELOPE_10MHZ_SOURCE 0x04
#define MERCURY_10MHZ_SOURCE 0x08
#define SPEED_48K 0x00
#define SPEED_96K 0x01
#define SPEED_192K 0x02
#define SPEED_384K 0x03
#define MODE_CLASS_E 0x01
#define MODE_OTHERS 0x00
#define LT2208_GAIN_OFF 0x00
#define LT2208_GAIN_ON 0x04
#define LT2208_DITHER_OFF 0x00
#define LT2208_DITHER_ON 0x08
#define LT2208_RANDOM_OFF 0x00
#define LT2208_RANDOM_ON 0x10
// state machine buffer processing
enum {
SYNC_0=0,
SYNC_1,
SYNC_2,
CONTROL_0,
CONTROL_1,
CONTROL_2,
CONTROL_3,
CONTROL_4,
LEFT_SAMPLE_HI,
LEFT_SAMPLE_MID,
LEFT_SAMPLE_LOW,
RIGHT_SAMPLE_HI,
RIGHT_SAMPLE_MID,
RIGHT_SAMPLE_LOW,
MIC_SAMPLE_HI,
MIC_SAMPLE_LOW,
SKIP
};
static int state=SYNC_0;
//#define DEBUG_PROTO 1
#ifdef DEBUG_PROTO
/*
* This is for debugging the protocol
*/
static int C3_RX1_OUT=-1;
static int C3_RX1_ANT=-1;
static int C4_TX_REL=-1;
static int PC_PTT=-1;
static int CASE1=-1;
static int CASE2=-1;
static int C2_FB=-1;
static int C3_HPF=-1;
static int C3_BP=-1;
static int C3_LNA=-1;
static int C3_TXDIS=-1;
static int C4_LPF=-1;
static int C1_DRIVE=-1;
static int proto_mod=0;
static int proto_val;
#define CHECK(x, var) proto_val=(x); if ((x) != var) { proto_mod=1; var=proto_val;}
#endif
//static int buffer_size=BUFFER_SIZE;
static int display_width;
static int speed;
static int dsp_rate=48000;
static int output_rate=48000;
static int data_socket=-1;
static int tcp_socket=-1;
static struct sockaddr_in data_addr;
static int output_buffer_size;
static unsigned char control_in[5]={0x00,0x00,0x00,0x00,0x00};
static double tuning_phase;
static double phase=0.0;
static int running;
static long ep4_sequence;
static uint32_t last_seq_num=-0xffffffff;
static int suppress_ozy_packet = 0;
static int current_rx=0;
static int samples=0;
static int mic_samples=0;
static int mic_sample_divisor=1;
static int local_ptt=0;
static int dash=0;
static int dot=0;
static double micinputbuffer[MAX_BUFFER_SIZE*2];
static int left_rx_sample;
static int right_rx_sample;
static int left_tx_sample;
static int right_tx_sample;
static unsigned char output_buffer[OZY_BUFFER_SIZE];
static int output_buffer_index=8;
static int command=1;
static GThread *receive_thread_id;
static gpointer receive_thread(gpointer arg);
static void process_ozy_input_buffer(unsigned char *buffer);
static void process_bandscope_buffer(char *buffer);
void ozy_send_buffer();
static unsigned char metis_buffer[1032];
static uint32_t send_sequence=0;
static int metis_offset=8;
static int metis_write(unsigned char ep,unsigned char* buffer,int length);
static void metis_start_stop(int command);
static void metis_send_buffer(unsigned char* buffer,int length);
static void metis_restart();
static void open_tcp_socket(void);
static void open_udp_socket(void);
static int how_many_receivers();
#define COMMON_MERCURY_FREQUENCY 0x80
#define PENELOPE_MIC 0x80
#ifdef USBOZY
//
// additional defines if we include USB Ozy support
//
#include "ozyio.h"
static GThread *ozy_EP4_rx_thread_id;
static GThread *ozy_EP6_rx_thread_id;
static gpointer ozy_ep4_rx_thread(gpointer arg);
static gpointer ozy_ep6_rx_thread(gpointer arg);
static void start_usb_receive_threads();
static void ozyusb_write(unsigned char* buffer,int length);
#define EP6_IN_ID 0x86 // end point = 6, direction toward PC
#define EP2_OUT_ID 0x02 // end point = 2, direction from PC
#define EP6_BUFFER_SIZE 2048
static unsigned char usb_output_buffer[EP6_BUFFER_SIZE];
static unsigned char ep6_inbuffer[EP6_BUFFER_SIZE];
static unsigned char usb_buffer_block = 0;
#define USB_TIMEOUT -7
#endif
static GMutex dump_mutex;
void dump_buffer(unsigned char *buffer,int length,const char *who) {
g_mutex_lock(&dump_mutex);
g_print("%s: %s: %d\n",__FUNCTION__,who,length);
int i=0;
int line=0;
while(i<length) {
g_print("%02X",buffer[i]);
i++;
line++;
if(line==16) {
g_print("\n");
line=0;
}
}
if(line!=0) {
g_print("\n");
}
g_print("\n");
g_mutex_unlock(&dump_mutex);
}
void old_protocol_stop() {
#ifdef USBOZY
if(device!=DEVICE_OZY) {
#endif
g_print("%s\n",__FUNCTION__);
metis_start_stop(0);
#ifdef USBOZY
}
#endif
}
void old_protocol_run() {
#ifdef USBOZY
if(device!=DEVICE_OZY) {
#endif
g_print("%s\n",__FUNCTION__);
metis_restart();
#ifdef USBOZY
}
#endif
}
void old_protocol_set_mic_sample_rate(int rate) {
mic_sample_divisor=rate/48000;
}
void old_protocol_init(int rx,int pixels,int rate) {
int i;
g_print("old_protocol_init: num_hpsdr_receivers=%d\n",how_many_receivers());
old_protocol_set_mic_sample_rate(rate);
if(transmitter->local_microphone) {
if(audio_open_input()!=0) {
g_print("audio_open_input failed\n");
transmitter->local_microphone=0;
}
}
display_width=pixels;
#ifdef USBOZY
//
// if we have a USB interfaced Ozy device:
//
if (device == DEVICE_OZY) {
g_print("old_protocol_init: initialise ozy on USB\n");
ozy_initialise();
start_usb_receive_threads();
}
else
#endif
{
g_print("old_protocol starting receive thread: buffer_size=%d output_buffer_size=%d\n",buffer_size,output_buffer_size);
if (radio->use_tcp) {
open_tcp_socket();
} else {
open_udp_socket();
}
receive_thread_id = g_thread_new( "old protocol", receive_thread, NULL);
if( ! receive_thread_id )
{
g_print("g_thread_new failed on receive_thread\n");
exit( -1 );
}
g_print( "receive_thread: id=%p\n",receive_thread_id);
g_print("old_protocol_init: prime radio\n");
for(i=8;i<OZY_BUFFER_SIZE;i++) {
output_buffer[i]=0;
}
metis_restart();
}
}
#ifdef USBOZY
//
// starts the threads for USB receive
// EP4 is the bandscope endpoint (not yet used)
// EP6 is the "normal" USB frame endpoint
//
static void start_usb_receive_threads()
{
g_print("old_protocol starting USB receive thread: buffer_size=%d\n",buffer_size);
ozy_EP6_rx_thread_id = g_thread_new( "OZY EP6 RX", ozy_ep6_rx_thread, NULL);
if( ! ozy_EP6_rx_thread_id )
{
g_print("g_thread_new failed for ozy_ep6_rx_thread\n");
exit( -1 );
}
}
//
// receive threat for USB EP4 (bandscope) not currently used.
//
static gpointer ozy_ep4_rx_thread(gpointer arg)
{
return NULL;
}
//
// receive threat for USB EP6 (512 byte USB Ozy frames)
// this function loops reading 4 frames at a time through USB
// then processes them one at a time.
//
static gpointer ozy_ep6_rx_thread(gpointer arg) {
int bytes;
g_print( "old_protocol: USB EP6 receive_thread\n");
running=1;
while (running)
{
bytes = ozy_read(EP6_IN_ID,ep6_inbuffer,EP6_BUFFER_SIZE); // read a 2K buffer at a time
//g_print("%s: read %d bytes\n",__FUNCTION__,bytes);
//dump_buffer(ep6_inbuffer,bytes,__FUNCTION__);
if (bytes == 0)
{
g_print("old_protocol_ep6_read: ozy_read returned 0 bytes... retrying\n");
continue;
}
else if (bytes != EP6_BUFFER_SIZE)
{
g_print("old_protocol_ep6_read: OzyBulkRead failed %d bytes\n",bytes);
perror("ozy_read(EP6 read failed");
//exit(1);
}
else
// process the received data normally
{
process_ozy_input_buffer(&ep6_inbuffer[0]);
process_ozy_input_buffer(&ep6_inbuffer[512]);
process_ozy_input_buffer(&ep6_inbuffer[1024]);
process_ozy_input_buffer(&ep6_inbuffer[1024+512]);
}
}
return NULL;
}
#endif
static void open_udp_socket() {
int tmp;
if (data_socket >= 0) {
tmp=data_socket;
data_socket=-1;
usleep(100000);
close(tmp);
}
tmp=socket(PF_INET,SOCK_DGRAM,IPPROTO_UDP);
if(tmp<0) {
perror("old_protocol: create socket failed for data_socket\n");
exit(-1);
}
int optval = 1;
if(setsockopt(tmp, SOL_SOCKET, SO_REUSEADDR, &optval, sizeof(optval))<0) {
perror("data_socket: SO_REUSEADDR");
}
if(setsockopt(tmp, SOL_SOCKET, SO_REUSEPORT, &optval, sizeof(optval))<0) {
perror("data_socket: SO_REUSEPORT");
}
optval=0xffff;
if (setsockopt(tmp, SOL_SOCKET, SO_SNDBUF, &optval, sizeof(optval))<0) {
perror("data_socket: SO_SNDBUF");
}
if (setsockopt(tmp, SOL_SOCKET, SO_RCVBUF, &optval, sizeof(optval))<0) {
perror("data_socket: SO_RCVBUF");
}
//
// set a timeout for receive
// This is necessary because we might already "sit" in an UDP recvfrom() call while
// instructing the radio to switch to TCP. Then this call has to finish eventually
// and the next recvfrom() then uses the TCP socket.
//
struct timeval tv;
tv.tv_sec=0;
tv.tv_usec=100000;
if(setsockopt(tmp, SOL_SOCKET, SO_RCVTIMEO, &tv, sizeof(tv))<0) {
perror("data_socket: SO_RCVTIMEO");
}
// bind to the interface
g_print("binding UDP socket to %s:%d\n",inet_ntoa(radio->info.network.interface_address.sin_addr),ntohs(radio->info.network.interface_address.sin_port));
if(bind(tmp,(struct sockaddr*)&radio->info.network.interface_address,radio->info.network.interface_length)<0) {
perror("old_protocol: bind socket failed for data_socket\n");
exit(-1);
}
memcpy(&data_addr,&radio->info.network.address,radio->info.network.address_length);
data_addr.sin_port=htons(DATA_PORT);
data_socket=tmp;
g_print("%s: UDP socket established: %d for %s:%d\n",__FUNCTION__,data_socket,inet_ntoa(data_addr.sin_addr),ntohs(data_addr.sin_port));
}
static void open_tcp_socket() {
int tmp;
if (tcp_socket >= 0) {
tmp=tcp_socket;
tcp_socket=-1;
usleep(100000);
close(tmp);
}
memcpy(&data_addr,&radio->info.network.address,radio->info.network.address_length);
data_addr.sin_port=htons(DATA_PORT);
data_addr.sin_family = AF_INET;
g_print("Trying to open TCP connection to %s\n", inet_ntoa(radio->info.network.address.sin_addr));
tmp=socket(AF_INET, SOCK_STREAM, 0);
if (tmp < 0) {
perror("tcp_socket: create socket failed for TCP socket");
exit(-1);
}
int optval = 1;
if(setsockopt(tmp, SOL_SOCKET, SO_REUSEADDR, &optval, sizeof(optval))<0) {
perror("tcp_socket: SO_REUSEADDR");
}
if(setsockopt(tmp, SOL_SOCKET, SO_REUSEPORT, &optval, sizeof(optval))<0) {
perror("tcp_socket: SO_REUSEPORT");
}
if (connect(tmp,(const struct sockaddr *)&data_addr,sizeof(data_addr)) < 0) {
perror("tcp_socket: connect");
}
optval=0xffff;
if (setsockopt(tmp, SOL_SOCKET, SO_SNDBUF, &optval, sizeof(optval))<0) {
perror("tcp_socket: SO_SNDBUF");
}
if (setsockopt(tmp, SOL_SOCKET, SO_RCVBUF, &optval, sizeof(optval))<0) {
perror("tcp_socket: SO_RCVBUF");
}
tcp_socket=tmp;
g_print("TCP socket established: %d\n", tcp_socket);
}
static gpointer receive_thread(gpointer arg) {
struct sockaddr_in addr;
socklen_t length;
unsigned char buffer[2048];
int bytes_read;
int ret,left;
int ep;
uint32_t sequence;
g_print( "old_protocol: receive_thread\n");
running=1;
//metis_restart();
length=sizeof(addr);
while(running) {
switch(device) {
#ifdef USBOZY
case DEVICE_OZY:
// should not happen
break;
#endif
default:
for (;;) {
if (tcp_socket >= 0) {
// TCP messages may be split, so collect exactly 1032 bytes.
// Remember, this is a STREAMING protocol.
bytes_read=0;
left=1032;
while (left > 0) {
ret=recvfrom(tcp_socket,buffer+bytes_read,(size_t)(left),0,NULL,0);
if (ret < 0 && errno == EAGAIN) continue; // time-out
if (ret < 0) break; // error
bytes_read += ret;
left -= ret;
}
if (ret < 0) {
bytes_read=ret; // error case: discard whole packet
//perror("old_protocol recvfrom TCP:");
}
} else if (data_socket >= 0) {
bytes_read=recvfrom(data_socket,buffer,sizeof(buffer),0,(struct sockaddr*)&addr,&length);
if(bytes_read < 0 && errno != EAGAIN) perror("old_protocol recvfrom UDP:");
//g_print("%s: bytes_read=%d\n",__FUNCTION__,bytes_read);
} else {
// This could happen in METIS start/stop sequences
usleep(100000);
continue;
}
if(bytes_read >= 0 || errno != EAGAIN) break;
}
if(bytes_read <= 0) {
continue;
}
if(buffer[0]==0xEF && buffer[1]==0xFE) {
switch(buffer[2]) {
case 1:
// get the end point
ep=buffer[3]&0xFF;
// get the sequence number
sequence=((buffer[4]&0xFF)<<24)+((buffer[5]&0xFF)<<16)+((buffer[6]&0xFF)<<8)+(buffer[7]&0xFF);
// A sequence error with a seqnum of zero usually indicates a METIS restart
// and is no error condition
if (sequence != 0 && sequence != last_seq_num+1) {
g_print("SEQ ERROR: last %ld, recvd %ld\n", (long) last_seq_num, (long) sequence);
sequence_errors++;
}
last_seq_num=sequence;
switch(ep) {
case 6: // EP6
// process the data
process_ozy_input_buffer(&buffer[8]);
process_ozy_input_buffer(&buffer[520]);
break;
case 4: // EP4
/*
ep4_sequence++;
if(sequence!=ep4_sequence) {
ep4_sequence=sequence;
} else {
int seq=(int)(sequence%32L);
if((sequence%32L)==0L) {
reset_bandscope_buffer_index();
}
process_bandscope_buffer(&buffer[8]);
process_bandscope_buffer(&buffer[520]);
}
*/
break;
default:
g_print("unexpected EP %d length=%d\n",ep,bytes_read);
break;
}
break;
case 2: // response to a discovery packet
g_print("unexepected discovery response when not in discovery mode\n");
break;
default:
g_print("unexpected packet type: 0x%02X\n",buffer[2]);
break;
}
} else {
g_print("received bad header bytes on data port %02X,%02X\n",buffer[0],buffer[1]);
}
break;
}
}
return NULL;
}
//
// To avoid overloading code with handling all the different cases
// at various places,
// we define here the channel number of the receivers, as well as the
// number of HPSDR receivers to use (up to 5)
// Furthermore, we provide a function that determines the frequency for
// a given (HPSDR) receiver and for the transmitter.
//
//
static int rx_feedback_channel() {
//
// For radios with small FPGAS only supporting 2 RX, use RX1.
// Else, use the last RX before the TX feedback channel.
//
int ret;
switch (device) {
case DEVICE_METIS:
case DEVICE_HERMES_LITE:
ret=0;
break;
case DEVICE_HERMES:
case DEVICE_STEMLAB:
case DEVICE_HERMES_LITE2:
ret=2;
break;
case DEVICE_ANGELIA:
case DEVICE_ORION:
case DEVICE_ORION2:
ret=3;
break;
default:
ret=0;
break;
}
return ret;
}
static int tx_feedback_channel() {
//
// Radios with small FPGAs use RX2
// HERMES uses RX4,
// and Angelia and beyond use RX5
//
// This is hard-coded in the firmware.
//
int ret;
switch (device) {
case DEVICE_METIS:
case DEVICE_HERMES_LITE:
ret=1;
break;
case DEVICE_HERMES:
case DEVICE_STEMLAB:
case DEVICE_HERMES_LITE2:
ret=3;
break;
case DEVICE_ANGELIA:
case DEVICE_ORION:
case DEVICE_ORION2:
ret=4;
break;
default:
ret=1;
break;
}
return ret;
}
static int first_receiver_channel() {
return 0;
}
static int second_receiver_channel() {
return 1;
}
static long long channel_freq(int chan) {
//
// Return the frequency associated with the current HPSDR
// RX channel (0 <= chan <= 4).
//
// This function returns the TX frequency if chan is
// outside the allowed range, and thus can be used
// to set the TX frequency.
//
// If transmitting with PURESIGNAL, the frequencies of
// the feedback and TX DAC channels are set to the TX freq.
//
// This subroutine is the ONLY place here where the VFO
// frequencies are looked at.
//
int vfonum;
long long freq;
// RX1 and RX2 are normally used for the first and second receiver.
// all other channels are used for PURESIGNAL and get the TX frequency
switch (chan) {
case 0:
vfonum=receiver[0]->id;
break;
case 1:
if (diversity_enabled) {
vfonum=receiver[0]->id;
} else {
vfonum=receiver[1]->id;
}
break;
default: // TX frequency used for all other channels
vfonum=-1;
break;
}
// Radios with small FPGAs use RX1/RX2 for feedback while transmitting,
//
if (isTransmitting() && transmitter->puresignal && (chan == rx_feedback_channel() || chan == tx_feedback_channel())) {
vfonum = -1;
}
if (vfonum < 0) {
//
// indicates that we should use the TX frequency.
// We have to adjust by the offset for CTUN mode
//
vfonum=get_tx_vfo();
freq=vfo[vfonum].frequency-vfo[vfonum].lo;
if (vfo[vfonum].ctun) freq += vfo[vfonum].offset;
if(transmitter->xit_enabled) {
freq+=transmitter->xit;
}
if (!cw_is_on_vfo_freq) {
if(vfo[vfonum].mode==modeCWU) {
freq+=(long long)cw_keyer_sidetone_frequency;
} else if(vfo[vfonum].mode==modeCWL) {
freq-=(long long)cw_keyer_sidetone_frequency;
}
}
} else {
//
// determine RX frequency associated with VFO #vfonum
// This is the center freq in CTUN mode.
//
freq=vfo[vfonum].frequency-vfo[vfonum].lo;
if(vfo[vfonum].rit_enabled) {
freq+=vfo[vfonum].rit;
}
if (cw_is_on_vfo_freq) {
if(vfo[vfonum].mode==modeCWU) {
freq-=(long long)cw_keyer_sidetone_frequency;
} else if(vfo[vfonum].mode==modeCWL) {
freq+=(long long)cw_keyer_sidetone_frequency;
}
}
}
freq+=calibration;
return freq;
}
static int how_many_receivers() {
//
// For DIVERSITY, we need at least two RX channels
// When PURESIGNAL is active, we need to include the TX DAC channel.
//
int ret = receivers; // 1 or 2
if (diversity_enabled) ret=2; // need both RX channels, even if there is only one RX
#ifdef PURESIGNAL
// for PureSignal, the number of receivers needed is hard-coded below.
// we need at least 2, and up to 5 for Orion2 boards. This is so because
// the TX DAC is hard-wired to RX4 for HERMES,STEMLAB and to RX5 for ANGELIA
// and beyond.
if (transmitter->puresignal) {
switch (device) {
case DEVICE_METIS:
case DEVICE_HERMES_LITE:
ret=2; // TX feedback hard-wired to RX2
break;
case DEVICE_HERMES:
case DEVICE_STEMLAB:
case DEVICE_HERMES_LITE2:
ret=4; // TX feedback hard-wired to RX4
break;
case DEVICE_ANGELIA:
case DEVICE_ORION:
case DEVICE_ORION2:
ret=5; // TX feedback hard-wired to RX5
break;
default:
ret=2; // This is the minimum for PURESIGNAL
break;
}
}
#endif
return ret;
}
/*
static void process_ozy_input_buffer(unsigned char *buffer) {
int i;
int r;
int b=0;
int previous_ptt;
int previous_dot;
int previous_dash;
int left_sample;
int right_sample;
short mic_sample;
float fsample;
double left_sample_double;
double right_sample_double;
double gain=pow(10.0, mic_gain / 20.0);
double left_sample_double_rx;
double right_sample_double_rx;
double left_sample_double_tx;
double right_sample_double_tx;
double left_sample_double_main;
double right_sample_double_main;
double left_sample_double_aux;
double right_sample_double_aux;
int id=active_receiver->id;
int num_hpsdr_receivers=how_many_receivers();
int rxfdbk = rx_feedback_channel();
int txfdbk = tx_feedback_channel();
int rx1channel = first_receiver_channel();
int rx2channel = second_receiver_channel();
if(buffer[b++]==SYNC && buffer[b++]==SYNC && buffer[b++]==SYNC) {
// extract control bytes
control_in[0]=buffer[b++];
control_in[1]=buffer[b++];
control_in[2]=buffer[b++];
control_in[3]=buffer[b++];
control_in[4]=buffer[b++];
// do not set ptt. In PURESIGNAL, this would stop the
// receiver sending samples to WDSP abruptly.
// Do the RX-TX change only via ext_mox_update.
previous_ptt=local_ptt;
previous_dot=dot;
previous_dash=dash;
local_ptt=(control_in[0]&0x01)==0x01;
dash=(control_in[0]&0x02)==0x02;
dot=(control_in[0]&0x04)==0x04;
if (cw_keyer_internal) {
// Stops CAT cw transmission if paddle hit in "internal" CW
if ((dash || dot) && cw_keyer_internal) cw_key_hit=1;
} else {
#ifdef LOCALCW
//
// report "key hit" event to the local keyer
// (local keyer will stop CAT cw if necessary)
if (dash != previous_dash) keyer_event(0, dash);
if (dot != previous_dot ) keyer_event(1, dot );
#endif
}
if(previous_ptt!=local_ptt) {
g_idle_add(ext_mox_update,(gpointer)(long)(local_ptt));
}
switch((control_in[0]>>3)&0x1F) {
case 0:
adc_overload=control_in[1]&0x01;
if (device != DEVICE_HERMES_LITE2) {
//
// HL2 uses these bits of the protocol for a different purpose:
// C1 unused except the ADC overload bit
// C2/C3 contains underflow/overflow and TX FIFO count
//
IO1=(control_in[1]&0x02)?0:1;
IO2=(control_in[1]&0x04)?0:1;
IO3=(control_in[1]&0x08)?0:1;
if(mercury_software_version!=control_in[2]) {
mercury_software_version=control_in[2];
g_print(" Mercury Software version: %d (0x%0X)\n",mercury_software_version,mercury_software_version);
}
if(penelope_software_version!=control_in[3]) {
penelope_software_version=control_in[3];
g_print(" Penelope Software version: %d (0x%0X)\n",penelope_software_version,penelope_software_version);
}
}
if(ozy_software_version!=control_in[4]) {
ozy_software_version=control_in[4];
g_print("FPGA firmware version: %d.%d\n",ozy_software_version/10,ozy_software_version%10);
}
break;
case 1:
if (device != DEVICE_HERMES_LITE2) {
//
// HL2 uses C1/C2 for measuring the temperature
//
exciter_power=((control_in[1]&0xFF)<<8)|(control_in[2]&0xFF); // from Penelope or Hermes
temperature=0;
} else {
exciter_power=0;
temperature+=((control_in[1]&0xFF)<<8)|(control_in[2]&0xFF); // HL2
n_temperature++;
if(n_temperature==10) {
average_temperature=temperature/10;
temperature=0;
n_temperature=0;
}
}
alex_forward_power=((control_in[3]&0xFF)<<8)|(control_in[4]&0xFF); // from Alex or Apollo
break;
case 2:
alex_reverse_power=((control_in[1]&0xFF)<<8)|(control_in[2]&0xFF); // from Alex or Apollo
if (device != DEVICE_HERMES_LITE2) {
AIN3=((control_in[3]&0xFF)<<8)|(control_in[4]&0xFF); // For Penelope or Hermes
current=0;
} else {
AIN3=0;
current+=((control_in[3]&0xFF)<<8)|(control_in[4]&0xFF); // HL2
n_current++;
if(n_current==10) {
average_current=current/10;
current=0;
n_current=0;
}
}
break;
case 3:
AIN4=((control_in[1]&0xFF)<<8)|(control_in[2]&0xFF); // For Penelope or Hermes
AIN6=((control_in[3]&0xFF)<<8)|(control_in[4]&0xFF); // For Penelope or Hermes
break;
}
int iq_samples=(512-8)/((num_hpsdr_receivers*6)+2);
for(i=0;i<iq_samples;i++) {
for(r=0;r<num_hpsdr_receivers;r++) {
left_sample = (int)((signed char) buffer[b++])<<16;
left_sample |= (int)((((unsigned char)buffer[b++])<<8)&0xFF00);
left_sample |= (int)((unsigned char)buffer[b++]&0xFF);
right_sample = (int)((signed char)buffer[b++]) << 16;
right_sample |= (int)((((unsigned char)buffer[b++])<<8)&0xFF00);
right_sample |= (int)((unsigned char)buffer[b++]&0xFF);
left_sample_double=(double)left_sample/8388607.0; // 24 bit sample 2^23-1
right_sample_double=(double)right_sample/8388607.0; // 24 bit sample 2^23-1
if (isTransmitting() && transmitter->puresignal) {
//
// transmitting with PURESIGNAL. Get sample pairs and feed to pscc
//
if (r == rxfdbk) {
left_sample_double_rx=left_sample_double;
right_sample_double_rx=right_sample_double;
} else if (r == txfdbk) {
left_sample_double_tx=left_sample_double;
right_sample_double_tx=right_sample_double;
}
// this is pure paranoia, it allows for txfdbk < rxfdbk
if (r+1 == num_hpsdr_receivers) {
add_ps_iq_samples(transmitter, left_sample_double_tx,right_sample_double_tx,left_sample_double_rx,right_sample_double_rx);
}
}
if (!isTransmitting() && diversity_enabled) {
//
// receiving with DIVERSITY. Get sample pairs and feed to diversity mixer
//
if (r == rx1channel) {
left_sample_double_main=left_sample_double;
right_sample_double_main=right_sample_double;
} else if (r == rx2channel) {
left_sample_double_aux=left_sample_double;
right_sample_double_aux=right_sample_double;
}
// this is pure paranoia, it allows for rx2channel < rx1channel
if (r+1 == num_hpsdr_receivers) {
add_div_iq_samples(receiver[0], left_sample_double_main,right_sample_double_main,left_sample_double_aux,right_sample_double_aux);
// if we have a second receiver, display "auxiliary" receiver as well
if (receivers >1) add_iq_samples(receiver[1], left_sample_double_aux,right_sample_double_aux);
}
}