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Add the squelch file as needed by SVXLink.

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This commit is contained in:
Jonathan Naylor
2023-10-25 12:39:09 +01:00
parent b6269c73da
commit 3eb29a0bf5
7 changed files with 82 additions and 7 deletions
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62
FMNetwork.cpp
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@@ -25,23 +25,30 @@
#include <cassert>
#include <cstring>
#include <sys/types.h>
#include <sys/stat.h>
#include <fcntl.h>
#include <unistd.h>
const unsigned int MMDVM_SAMPLERATE = 8000U;
const unsigned int BUFFER_LENGTH = 1500U;
CFMNetwork::CFMNetwork(const std::string& callsign, const std::string& protocol, const std::string& localAddress, unsigned short localPort, const std::string& gatewayAddress, unsigned short gatewayPort, unsigned int sampleRate, bool debug) :
CFMNetwork::CFMNetwork(const std::string& callsign, const std::string& protocol, const std::string& localAddress, unsigned short localPort, const std::string& gatewayAddress, unsigned short gatewayPort, unsigned int sampleRate, const std::string& squelchFile, bool debug) :
m_callsign(callsign),
m_protocol(FMNP_USRP),
m_socket(localAddress, localPort),
m_addr(),
m_addrLen(0U),
m_sampleRate(sampleRate),
m_squelchFile(squelchFile),
m_debug(debug),
m_enabled(false),
m_buffer(2000U, "FM Network"),
m_seqNo(0U),
m_resampler(NULL),
m_error(0)
m_error(0),
m_fd(-1)
{
assert(!callsign.empty());
assert(gatewayPort > 0U);
@@ -78,6 +85,14 @@ bool CFMNetwork::open()
LogMessage("Opening FM network connection");
if (!m_squelchFile.empty()) {
m_fd = ::open(m_squelchFile.c_str(), O_WRONLY | O_SYNC);
if (m_fd == -1) {
LogError("Cannot open the squelch file: %s, errno=%d", m_squelchFile.c_str(), errno);
return false;
}
}
return m_socket.open(m_addr);
}
@@ -173,6 +188,12 @@ bool CFMNetwork::writeRawData(const float* in, unsigned int nIn)
assert(in != NULL);
assert(nIn > 0U);
if (m_seqNo == 0U) {
bool ret = writeRawStart();
if (!ret)
return false;
}
unsigned char buffer[2000U];
unsigned int length = 0U;
@@ -214,6 +235,8 @@ bool CFMNetwork::writeRawData(const float* in, unsigned int nIn)
if (m_debug)
CUtils::dump(1U, "FM Network Data Sent", buffer, length);
m_seqNo++;
return m_socket.write(buffer, length, m_addr, m_addrLen);
}
@@ -222,7 +245,7 @@ bool CFMNetwork::writeEnd()
if (m_protocol == FMNP_USRP)
return writeUSRPEnd();
else
return true;
return writeRawEnd();
}
bool CFMNetwork::writeUSRPEnd()
@@ -289,6 +312,21 @@ bool CFMNetwork::writeUSRPEnd()
}
}
bool CFMNetwork::writeRawEnd()
{
m_seqNo = 0U;
if (m_fd != -1) {
size_t n = ::write(m_fd, "Z", 1);
if (n != 1) {
LogError("Cannot write to the squelch file: %s, errno=%d", m_squelchFile.c_str(), errno);
return false;
}
}
return true;
}
void CFMNetwork::clock(unsigned int ms)
{
unsigned char buffer[BUFFER_LENGTH];
@@ -404,6 +442,11 @@ void CFMNetwork::close()
{
m_socket.close();
if (m_fd != -1) {
::close(m_fd);
m_fd = -1;
}
LogMessage("Closing FM network connection");
}
@@ -514,3 +557,16 @@ bool CFMNetwork::writeUSRPStart()
}
}
bool CFMNetwork::writeRawStart()
{
if (m_fd != -1) {
size_t n = ::write(m_fd, "O", 1);
if (n != 1) {
LogError("Cannot write to the squelch file: %s, errno=%d", m_squelchFile.c_str(), errno);
return false;
}
}
return true;
}