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Add firmware support for hard sectors

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This commit is contained in:
Eric Anderson
2020-12-24 15:41:51 -08:00
parent 15e6d4959e
commit f1506d0dbd
14 changed files with 143 additions and 31 deletions
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1
lib/fluxsource/fluxsource.h
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@@ -30,6 +30,7 @@ public:
extern void setHardwareFluxSourceRevolutions(double revolutions);
extern void setHardwareFluxSourceDensity(bool high_density);
extern void setHardwareFluxSourceSynced(bool synced);
extern void setHardwareFluxSourceHardSectorCount(int sectorCount);
#endif

17
lib/fluxsource/hardwarefluxsource.cc
View File

@@ -24,6 +24,11 @@ static IntFlag indexMode(
"index pulse source (0=drive, 1=300 RPM fake source, 2=360 RPM fake source",
0);
static IntFlag hardSectorCount(
{ "--hard-sector-count" },
"number of hard sectors on the disk (0=soft sectors)",
0);
static bool high_density = false;
void setHardwareFluxSourceDensity(bool high_density)
@@ -39,7 +44,8 @@ public:
{
usbSetDrive(_drive, high_density, indexMode);
std::cerr << "Measuring rotational speed... " << std::flush;
_oneRevolution = usbGetRotationalPeriod();
_oneRevolution = usbGetRotationalPeriod(hardSectorCount);
_hardSectorThreshold = _oneRevolution * 3 / (4 * hardSectorCount);
std::cerr << fmt::format("{}ms\n", _oneRevolution / 1e6);
}
@@ -52,7 +58,8 @@ public:
{
usbSetDrive(_drive, high_density, indexMode);
usbSeek(track);
Bytes data = usbRead(side, synced, revolutions * _oneRevolution);
Bytes data = usbRead(
side, synced, revolutions * _oneRevolution, _hardSectorThreshold);
auto fluxmap = std::make_unique<Fluxmap>();
fluxmap->appendBytes(data);
return fluxmap;
@@ -72,6 +79,7 @@ private:
unsigned _drive;
unsigned _revolutions;
nanoseconds_t _oneRevolution;
nanoseconds_t _hardSectorThreshold;
};
void setHardwareFluxSourceRevolutions(double revolutions)
@@ -84,6 +92,11 @@ void setHardwareFluxSourceSynced(bool synced)
::synced.setDefaultValue(synced);
}
void setHardwareFluxSourceHardSectorCount(int sectorCount)
{
::hardSectorCount.setDefaultValue(sectorCount);
}
std::unique_ptr<FluxSource> FluxSource::createHardwareFluxSource(unsigned drive)
{
return std::unique_ptr<FluxSource>(new HardwareFluxSource(drive));