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3c2728e5dd
Fix of the bug in PWM driver that resulted in accessing array out of bounds, what caused occasional system crash on startup.
49 lines
1.5 KiB
C++
49 lines
1.5 KiB
C++
// Copyright (c) 2017-2023, Mudita Sp. z.o.o. All rights reserved.
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// For licensing, see https://github.com/mudita/MuditaOS/LICENSE.md
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#include "DriverPWM.hpp"
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#include "critical.hpp"
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#if defined(TARGET_RT1051)
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#include "board/rt1051/drivers/RT1051DriverPWM.hpp"
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#elif defined(TARGET_Linux)
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#else
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#error "Unsupported target"
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#endif
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namespace drivers
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{
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std::weak_ptr<DriverPWM> DriverPWM::pwmDrivers[static_cast<std::uint32_t>(PWMInstances::COUNT)]
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[static_cast<std::uint32_t>(PWMModules::COUNT)];
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std::shared_ptr<DriverPWM> DriverPWM::Create(drivers::PWMInstances instance,
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drivers::PWMModules module,
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const drivers::DriverPWMParams ¶ms)
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{
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const auto instanceIndex =
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static_cast<std::uint32_t>(instance) - static_cast<std::uint32_t>(PWMInstances::OFFSET);
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const auto moduleIndex = static_cast<std::uint32_t>(module);
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cpp_freertos::CriticalSection::Enter();
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std::shared_ptr<DriverPWM> inst = pwmDrivers[instanceIndex][moduleIndex].lock();
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if (!inst) {
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#if defined(TARGET_RT1051)
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inst = std::make_shared<RT1051DriverPWM>(instance, module, params);
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#elif defined(TARGET_Linux)
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#else
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#error "Unsupported target"
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#endif
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pwmDrivers[instanceIndex][moduleIndex] = inst;
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}
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else {
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inst->InitNextChannel(params);
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}
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cpp_freertos::CriticalSection::Exit();
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return inst;
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}
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} // namespace drivers
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