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Regenerate the FICH correctly.

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This commit is contained in:
Jonathan Naylor 2020-10-13 10:07:31 +01:00
parent eb2510898d
commit c1171bc052
4 changed files with 40 additions and 5 deletions
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25
YSFControl.cpp
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@ -155,9 +155,30 @@ bool CYSFControl::writeModem(unsigned char *data, unsigned int len)
CYSFFICH fich;
bool valid = fich.decode(data + 2U);
if (!valid) {
unsigned char fi = m_lastFICH.getFI();
unsigned char ft = m_lastFICH.getFT();
unsigned char fn = m_lastFICH.getFN();
unsigned char bt = m_lastFICH.getBT();
unsigned char bn = m_lastFICH.getBN();
if (valid)
m_lastFICH = fich;
if (fi == YSF_FI_COMMUNICATIONS && ft > 0U) {
fn++;
if (fn > ft) {
fn = 0U;
if (bt > 0U)
bn++;
}
}
fich.setFI(YSF_FI_COMMUNICATIONS);
fich.setFN(fn);
fich.setFT(ft);
fich.setBN(bn);
fich.setBT(bt);
}
m_lastFICH = fich;
#ifdef notdef
// Stop repeater packets coming through, unless we're acting as a remote gateway