b226c659cb
1500 is WAAAAY too high on haydn. Set max to a saner of 750. Also prior to this change, 80 was default for torch, so set 80 as default.
74 lines
1.9 KiB
C++
74 lines
1.9 KiB
C++
/*
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* Copyright (C) 2024 LibreMobileOS Foundation
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*
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* SPDX-License-Identifier: Apache-2.0
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*/
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#include "CameraProviderExtension.h"
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#include <fstream>
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#define TORCH_BRIGHTNESS "brightness"
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#define TORCH_MAX_BRIGHTNESS "max_brightness"
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#define TOGGLE_SWITCH "/sys/devices/platform/soc/c440000.qcom,spmi/spmi-0/spmi0-02/c440000.qcom,spmi:qcom,pm8350c@2:qcom,flash_led@ee00/leds/led:switch_1/brightness"
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static std::string kTorchLedPath = "/sys/devices/platform/soc/c440000.qcom,spmi/spmi-0/spmi0-02/c440000.qcom,spmi:qcom,pm8350c@2:qcom,flash_led@ee00/leds/led:torch_1";
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/**
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* Write value to path and close file.
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*/
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template <typename T>
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static void set(const std::string& path, const T& value) {
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std::ofstream file(path);
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file << value;
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}
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/**
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* Read value from the path and close file.
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*/
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template <typename T>
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static T get(const std::string& path, const T& def) {
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std::ifstream file(path);
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T result;
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file >> result;
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return file.fail() ? def : result;
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}
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bool supportsTorchStrengthControlExt() {
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return true;
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}
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bool supportsSetTorchModeExt() {
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return false;
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}
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int32_t getTorchDefaultStrengthLevelExt() {
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return 80;
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}
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int32_t getTorchMaxStrengthLevelExt() {
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// In our device, both LEDs has same maximum value
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// so get from one.
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auto node = kTorchLedPath + "/" + TORCH_MAX_BRIGHTNESS;
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return 750;
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}
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int32_t getTorchStrengthLevelExt() {
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// We write same value in the both LEDs,
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// so get from one.
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auto node = kTorchLedPath + "/" + TORCH_BRIGHTNESS;
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return get(node, 0);
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}
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void setTorchStrengthLevelExt(int32_t torchStrength, bool enabled) {
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set(TOGGLE_SWITCH, 0);
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auto node = kTorchLedPath + "/" + TORCH_BRIGHTNESS;
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set(node, torchStrength);
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if (enabled)
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set(TOGGLE_SWITCH, 255);
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}
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void setTorchModeExt(bool enabled) {
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int32_t strength = getTorchDefaultStrengthLevelExt();
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setTorchStrengthLevelExt(enabled ? strength : 0, enabled);
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}
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