mirror of
https://github.com/akuker/RASCSI.git
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92 lines
3.4 KiB
C++
92 lines
3.4 KiB
C++
//---------------------------------------------------------------------------
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//
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// SCSI Target Emulator RaSCSI Reloaded for Raspberry Pi
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// Loopback tester utility
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//
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// Copyright (C) 2022 akuker
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//
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//---------------------------------------------------------------------------
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#include "scsiloop_timer.h"
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#include "hal/systimer.h"
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#include "scsiloop/scsiloop_cout.h"
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#include "shared/log.h"
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int ScsiLoop_Timer::RunTimerTest(vector<string> &error_list)
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{
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uint32_t timer_test_failures = 0;
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ScsiLoop_Cout::StartTest("hardware timer");
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// Allow +/- 2% tolerance when testing the timers
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double timer_tolerance_percent = 0.02;
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const uint32_t one_second_in_ns = 1000000;
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//------------------------------------------------------
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// Test SysTimer::GetTimerLow()
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LOGDEBUG("++ Testing SysTimer::GetTimerLow()")
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uint32_t before = SysTimer::GetTimerLow();
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for (int i = 0; i < 10; i++) {
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usleep(100000);
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ScsiLoop_Cout::PrintUpdate();
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}
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uint32_t after = SysTimer::GetTimerLow();
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uint32_t elapsed_nanosecs = after - before;
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LOGDEBUG("Elapsed time: %d %08X", elapsed_nanosecs, elapsed_nanosecs);
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if ((elapsed_nanosecs > (one_second_in_ns * (1.0 + timer_tolerance_percent))) ||
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(elapsed_nanosecs < (one_second_in_ns * (1.0 - timer_tolerance_percent)))) {
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error_list.push_back(fmt::format("SysTimer::GetTimerLow() test: Expected time approx: {}, but actually {}",
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one_second_in_ns, elapsed_nanosecs));
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timer_test_failures++;
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} else {
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ScsiLoop_Cout::PrintUpdate();
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}
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//------------------------------------------------------
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// Test SysTimer::SleepUsec()
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LOGDEBUG("++ Testing SysTimer::SleepUsec()")
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uint32_t expected_usec_result = 1000 * 100;
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before = SysTimer::GetTimerLow();
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for (int i = 0; i < 100; i++) {
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SysTimer::SleepUsec(1000);
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}
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after = SysTimer::GetTimerLow();
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elapsed_nanosecs = after - before;
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LOGDEBUG("SysTimer::SleepUsec() Average %d", (uint32_t)(elapsed_nanosecs / 100));
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if ((elapsed_nanosecs > expected_usec_result * (1.0 + timer_tolerance_percent)) ||
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(elapsed_nanosecs < expected_usec_result * (1.0 - timer_tolerance_percent))) {
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error_list.push_back(fmt::format("SysTimer::SleepUsec Test: Expected time approx: {}, but actually {}",
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expected_usec_result, elapsed_nanosecs));
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timer_test_failures++;
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} else {
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ScsiLoop_Cout::PrintUpdate();
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}
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//------------------------------------------------------
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// Test SysTimer::SleepNsec()
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LOGDEBUG("++ Testing SysTimer::SleepNsec()")
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before = SysTimer::GetTimerLow();
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SysTimer::SleepNsec(1000000);
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after = SysTimer::GetTimerLow();
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LOGDEBUG("SysTimer::SleepNSec: %d (expected ~1000)", (uint32_t)(after - before));
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elapsed_nanosecs = after - before;
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if ((elapsed_nanosecs > (1000 * (1.0 + timer_tolerance_percent))) ||
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(elapsed_nanosecs < (1000 * (1.0 - timer_tolerance_percent)))) {
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error_list.push_back(
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fmt::format("SysTimer::SleepNsec Test: Expected time approx: 1000, but actually {}", elapsed_nanosecs));
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timer_test_failures++;
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} else {
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ScsiLoop_Cout::PrintUpdate();
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}
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ScsiLoop_Cout::FinishTest("hardware timer", timer_test_failures);
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return timer_test_failures;
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}
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