122 lines
2.9 KiB
C++
122 lines
2.9 KiB
C++
/*
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* Copyright (c) Souldbminer and Horizon OC Contributors
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms and conditions of the GNU General Public License,
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* version 2, as published by the Free Software Foundation.
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*
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* This program is distributed in the hope it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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*/
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#include <cstdint>
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#include <mutex>
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#include <switch.h>
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#include "config.h"
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#include "errors.h"
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#include "file_utils.h"
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#include "pwm_dimming.h"
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#define PWM_DIMMING_HZ_RATE 5e3 // 5KHz PWM dimming, should be decent for most people
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#define DUTY_CYCLE_LEGNTH_NS (1e9 / (double)(PWM_DIMMING_HZ_RATE))
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float initial_brightness = 1.0f;
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float current_brightness = 1.0f;
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Thread pwmThread;
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PWMDimmer *PWMDimmer::instance = nullptr;
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PWMDimmer *PWMDimmer::GetInstance()
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{
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return instance;
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}
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void PWMDimmer::Initialize()
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{
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if (!instance) {
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instance = new PWMDimmer();
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FileUtils::LogLine("[pwmDim] Initialized PWMDimmer");
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}
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}
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Config *PWMDimmer::GetConfig()
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{
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return this->config;
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}
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void PWMDimmer::Exit()
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{
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if (instance) {
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FileUtils::LogLine("[pwmDim] Exiting PWMDimmer");
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delete instance;
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instance = nullptr;
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}
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}
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PWMDimmer::PWMDimmer()
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{
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this->config = Config::CreateDefault();
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}
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PWMDimmer::~PWMDimmer()
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{
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delete this->config;
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}
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void PWMDimmer::Start()
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{
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std::scoped_lock lock{ this->patcherMutex };
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this->config->Refresh();
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this->StartPWMDimming();
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u64 sku = 0;
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Result rc = splInitialize();
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ASSERT_RESULT_OK(rc, "splInitialize");
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rc = splGetConfig(SplConfigItem_HardwareType, &sku);
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ASSERT_RESULT_OK(rc, "splGetConfig");
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splExit();
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if (sku == HocClkConsoleType_OLED && this->config->GetConfigValue(HocClkConfigValue_PWMDimming)) {
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lblGetCurrentBrightnessSetting(&initial_brightness);
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Result rc =
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threadCreate(&pwmThread, ThreadEntry, this, NULL, 0x4000, 0x2B, -2);
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if (R_FAILED(rc)) {
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return;
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}
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rc = threadStart(&pwmThread);
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if (R_FAILED(rc)) {
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threadClose(&pwmThread);
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return;
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}
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}
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}
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void PWMDimmer::ThreadEntry(void *arg)
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{
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auto *self = static_cast<PWMDimmer *>(arg);
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self->StartPWMDimming();
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}
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void PWMDimmer::StartPWMDimming()
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{
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Result rc = lblInitialize();
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if (R_FAILED(rc)) {
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return;
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}
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for (;;) {
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lblGetCurrentBrightnessSetting(¤t_brightness);
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lblSetCurrentBrightnessSetting(current_brightness);
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svcSleepThread(DUTY_CYCLE_LEGNTH_NS / 2);
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lblSetCurrentBrightnessSetting(0.0f);
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svcSleepThread(DUTY_CYCLE_LEGNTH_NS / 2);
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}
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}
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