sdm660-common: Rework Light HAL based on xiaomi-msm8998 source
* squash from here
afafb3b3f3/light
* Added automatic max brightness detection
* Rework debug Statments
The xiaomi-sdm660-devs one created Led Light issues
Change-Id: Ie7b62a488770734e659f4db03436ebaa2f2f5f30
This commit is contained in:
Demon000
OdSazib
parent
a502a3904b
commit
f036db8030
4 changed files with 233 additions and 215 deletions
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@ -1,5 +1,4 @@
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//
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// Copyright (C) 2018 The Android Open Source Project
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// Copyright (C) 2018 The LineageOS Project
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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@ -20,8 +19,11 @@ cc_binary {
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srcs: ["service.cpp", "Light.cpp"],
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shared_libs: [
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"libbase",
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"libhardware",
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"libhidlbase",
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"libhidltransport",
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"liblog",
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"libhwbinder",
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"libutils",
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"android.hardware.light@2.0",
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],
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372
light/Light.cpp
372
light/Light.cpp
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@ -1,6 +1,5 @@
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/*
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* Copyright (C) 2018 The Android Open Source Project
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* Copyright (C) 2020 The LineageOS Project
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* Copyright (C) 2018 The LineageOS Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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@ -17,63 +16,96 @@
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#define LOG_TAG "android.hardware.light@2.0-service.xiaomi_sdm660"
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#include <android-base/logging.h>
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#include "Light.h"
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#include <android-base/file.h>
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#include <android-base/logging.h>
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#include <unistd.h>
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#include <fstream>
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#include <iomanip>
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#define LEDS "/sys/class/leds/"
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#define BUTTON1_LED LEDS "button-backlight1/"
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#define BUTTON_LED LEDS "button-backlight/"
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#define LCD_LED LEDS "lcd-backlight/"
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#define WHITE_LED LEDS "white/"
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#define RED_LED LEDS "red/"
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#define BLINK "blink"
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#define BRIGHTNESS "brightness"
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#define MAX_BRIGHTNESS "max_brightness"
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#define DUTY_PCTS "duty_pcts"
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#define PAUSE_HI "pause_hi"
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#define PAUSE_LO "pause_lo"
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#define RAMP_STEP_MS "ramp_step_ms"
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#define START_IDX "start_idx"
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#define MAX_LED_BRIGHTNESS 255
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#define MAX_WHITE_LED_BRIGHTNESS 255
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#define MAX_RED_LED_BRIGHTNESS 255
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#define MAX_LCD_BRIGHTNESS 4095
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/*
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* 8 duty percent steps.
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*/
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#define RAMP_STEPS 8
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/*
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* Each step will stay on for 50ms by default.
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*/
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#define RAMP_STEP_DURATION 150
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/*
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* Each value represents a duty percent (0 - 100) for the led pwm.
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*/
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static int32_t BRIGHTNESS_RAMP[RAMP_STEPS] = {0, 12, 25, 37, 50, 72, 85, 100};
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namespace {
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/*
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* Write value to path and close file.
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*/
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static void set(std::string path, std::string value) {
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std::ofstream file(path);
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#define LEDS "/sys/class/leds/"
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#define LCD_LED LEDS "lcd-backlight/"
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#define WHITE LEDS "white/"
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#define RED LEDS "red/"
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#define BUTTON LEDS "button-backlight/"
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#define BUTTON1 LEDS "button-backlight1/"
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#define BRIGHTNESS "brightness"
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#define MAX_BRIGHTNESS "max_brightness"
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#define BLINK "blink"
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#define DUTY_PCTS "duty_pcts"
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#define PAUSE_HI "pause_hi"
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#define PAUSE_LO "pause_lo"
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#define RAMP_STEP_MS "ramp_step_ms"
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#define START_IDX "start_idx"
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if (!file.is_open()) {
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LOG(DEBUG) << "failed to write %s to %s" << value.c_str() << path.c_str();
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return;
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}
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using ::android::base::ReadFileToString;
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using ::android::base::WriteStringToFile;
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// Default max brightness
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constexpr auto kDefaultMaxLedBrightness = 255;
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constexpr auto kDefaultMaxScreenBrightness = 4095;
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// Each step will stay on for 150ms by default.
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constexpr auto kRampStepDuration = 150;
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// Each value represents a duty percent (0 - 100) for the led pwm.
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constexpr std::array kBrightnessRamp = {0, 12, 25, 37, 50, 72, 85, 100};
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// Write value to path and close file.
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bool WriteToFile(const std::string& path, uint32_t content) {
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return WriteStringToFile(std::to_string(content), path);
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file << value;
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}
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bool WriteToFile(const std::string& path, const std::string& content) {
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return WriteStringToFile(content, path);
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/*
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* Read value to path and close file.
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*/
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static int get(std::string path) {
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std::ifstream file(path);
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int value;
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if (!file.is_open()) {
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LOG(DEBUG) << "failed to read from %s" << path.c_str();
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return 0;
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}
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file >> value;
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return value;
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}
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uint32_t RgbaToBrightness(uint32_t color) {
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// Extract brightness from AARRGGBB.
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uint32_t alpha = (color >> 24) & 0xFF;
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static void set(std::string path, int value) {
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set(path, std::to_string(value));
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}
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// Retrieve each of the RGB colors
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uint32_t red = (color >> 16) & 0xFF;
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uint32_t green = (color >> 8) & 0xFF;
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uint32_t blue = color & 0xFF;
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static uint32_t getBrightness(const LightState& state) {
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uint32_t alpha, red, green, blue;
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// Scale RGB colors if a brightness has been applied by the user
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/*
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* Extract brightness from AARRGGBB.
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*/
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alpha = (state.color >> 24) & 0xFF;
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red = (state.color >> 16) & 0xFF;
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green = (state.color >> 8) & 0xFF;
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blue = state.color & 0xFF;
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/*
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* Scale RGB brightness if Alpha brightness is not 0xFF.
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*/
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if (alpha != 0xFF) {
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red = red * alpha / 0xFF;
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green = green * alpha / 0xFF;
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@ -83,29 +115,105 @@ uint32_t RgbaToBrightness(uint32_t color) {
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return (77 * red + 150 * green + 29 * blue) >> 8;
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}
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inline uint32_t RgbaToBrightness(uint32_t color, uint32_t max_brightness) {
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return RgbaToBrightness(color) * max_brightness / 0xFF;
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static inline uint32_t scaleBrightness(uint32_t brightness, uint32_t maxBrightness) {
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return brightness * maxBrightness / 0xFF;
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}
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static inline uint32_t getScaledBrightness(const LightState& state, uint32_t maxBrightness) {
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return scaleBrightness(getBrightness(state), maxBrightness);
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}
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static int getMaxBrightness(std::string path) {
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int value = get(path);
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LOG(DEBUG) << "Got max brightness %d" << value;
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return value;
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}
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static void handleBacklight(const LightState& state) {
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uint32_t brightness = getScaledBrightness(state, getMaxBrightness(LCD_LED MAX_BRIGHTNESS));
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set(LCD_LED BRIGHTNESS, brightness);
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}
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static void handleButtons(const LightState& state) {
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uint32_t brightness = getScaledBrightness(state, getMaxBrightness(BUTTON_LED MAX_BRIGHTNESS));
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set(BUTTON_LED BRIGHTNESS, brightness);
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set(BUTTON1_LED BRIGHTNESS, brightness);
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}
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/*
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* Scale each value of the brightness ramp according to the
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* brightness of the color.
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*/
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std::string GetScaledDutyPcts(uint32_t brightness) {
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std::stringstream ramp;
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static std::string getScaledRamp(uint32_t brightness) {
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std::string ramp, pad;
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for (size_t i = 0; i < kBrightnessRamp.size(); i++) {
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if (i > 0) ramp << ",";
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ramp << kBrightnessRamp[i] * brightness / 0xFF;
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for (auto const& step : BRIGHTNESS_RAMP) {
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ramp += pad + std::to_string(step * brightness / 0xFF);
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pad = ",";
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}
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return ramp.str();
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return ramp;
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}
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inline bool IsLit(uint32_t color) {
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return color & 0x00ffffff;
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static void handleNotification(const LightState& state) {
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uint32_t whiteBrightness = getScaledBrightness(state, getMaxBrightness(WHITE_LED MAX_BRIGHTNESS));
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uint32_t redBrightness = getScaledBrightness(state, getMaxBrightness(RED_LED MAX_BRIGHTNESS));
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/* Disable blinking */
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set(WHITE_LED BLINK, 0);
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set(RED_LED BLINK, 0);
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if (state.flashMode == Flash::TIMED) {
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/*
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* If the flashOnMs duration is not long enough to fit ramping up
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* and down at the default step duration, step duration is modified
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* to fit.
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*/
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int32_t stepDuration = RAMP_STEP_DURATION;
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int32_t pauseHi = state.flashOnMs - (stepDuration * RAMP_STEPS * 2);
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int32_t pauseLo = state.flashOffMs;
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if (pauseHi < 0) {
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stepDuration = state.flashOnMs / (RAMP_STEPS * 2);
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pauseHi = 0;
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}
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/* White */
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set(WHITE_LED START_IDX, 0 * RAMP_STEPS);
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set(WHITE_LED DUTY_PCTS, getScaledRamp(whiteBrightness));
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set(WHITE_LED PAUSE_LO, pauseLo);
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set(WHITE_LED PAUSE_HI, pauseHi);
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set(WHITE_LED RAMP_STEP_MS, stepDuration);
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/* red */
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set(RED_LED START_IDX, 0 * RAMP_STEPS);
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set(RED_LED DUTY_PCTS, getScaledRamp(redBrightness));
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set(RED_LED PAUSE_LO, pauseLo);
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set(RED_LED PAUSE_HI, pauseHi);
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set(RED_LED RAMP_STEP_MS, stepDuration);
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/* Enable blinking */
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set(WHITE_LED BLINK, 1);
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set(RED_LED BLINK, 1);
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} else {
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set(WHITE_LED BRIGHTNESS, whiteBrightness);
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set(RED_LED BRIGHTNESS, redBrightness);
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}
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}
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static inline bool isLit(const LightState& state) {
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return state.color & 0x00ffffff;
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}
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/* Keep sorted in the order of importance. */
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static std::vector<LightBackend> backends = {
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{ Type::ATTENTION, handleNotification },
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{ Type::NOTIFICATIONS, handleNotification },
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{ Type::BATTERY, handleNotification },
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{ Type::BACKLIGHT, handleBacklight },
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{ Type::BUTTONS, handleButtons },
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};
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} // anonymous namespace
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namespace android {
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@ -114,58 +222,39 @@ namespace light {
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namespace V2_0 {
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namespace implementation {
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Light::Light() {
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std::string buf;
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if (ReadFileToString(LCD_LED MAX_BRIGHTNESS, &buf)) {
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max_screen_brightness_ = std::stoi(buf);
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} else {
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max_screen_brightness_ = kDefaultMaxScreenBrightness;
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LOG(ERROR) << "Failed to read max screen brightness, fallback to "
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<< kDefaultMaxLedBrightness;
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}
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if (ReadFileToString(WHITE MAX_BRIGHTNESS, &buf)) {
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max_led_brightness_ = std::stoi(buf);
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} else {
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max_led_brightness_ = kDefaultMaxLedBrightness;
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LOG(ERROR) << "Failed to read max white LED brightness, fallback to " << kDefaultMaxLedBrightness;
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}
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if (ReadFileToString(RED MAX_BRIGHTNESS, &buf)) {
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max_red_led_brightness_= std::stoi(buf);
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} else {
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max_red_led_brightness_ = kDefaultMaxLedBrightness;
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LOG(ERROR) << "Failed to read max red LED brightness, fallback to " << kDefaultMaxLedBrightness;
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}
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if (!access(BUTTON BRIGHTNESS, W_OK)) {
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lights_.emplace(std::make_pair(Type::BUTTONS,
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[this](auto&&... args) { setLightButtons(args...); }));
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buttons_.emplace_back(BUTTON BRIGHTNESS);
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if (!access(BUTTON1 BRIGHTNESS, W_OK)) {
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buttons_.emplace_back(BUTTON1 BRIGHTNESS);
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}
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if (ReadFileToString(BUTTON MAX_BRIGHTNESS, &buf)) {
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max_button_brightness_ = std::stoi(buf);
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} else {
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max_button_brightness_ = kDefaultMaxLedBrightness;
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LOG(ERROR) << "Failed to read max button brightness, fallback to "
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<< kDefaultMaxLedBrightness;
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}
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}
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}
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Return<Status> Light::setLight(Type type, const LightState& state) {
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auto it = lights_.find(type);
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LightStateHandler handler;
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bool handled = false;
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if (it == lights_.end()) {
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/* Lock global mutex until light state is updated. */
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std::lock_guard<std::mutex> lock(globalLock);
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/* Update the cached state value for the current type. */
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for (LightBackend& backend : backends) {
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if (backend.type == type) {
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backend.state = state;
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handler = backend.handler;
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}
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}
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/* If no handler has been found, then the type is not supported. */
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if (!handler) {
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return Status::LIGHT_NOT_SUPPORTED;
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}
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it->second(type, state);
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/* Light up the type with the highest priority that matches the current handler. */
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for (LightBackend& backend : backends) {
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if (handler == backend.handler && isLit(backend.state)) {
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handler(backend.state);
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handled = true;
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break;
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}
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}
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/* If no type has been lit up, then turn off the hardware. */
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if (!handled) {
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handler(state);
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}
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return Status::SUCCESS;
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}
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@ -173,86 +262,15 @@ Return<Status> Light::setLight(Type type, const LightState& state) {
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Return<void> Light::getSupportedTypes(getSupportedTypes_cb _hidl_cb) {
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std::vector<Type> types;
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for (auto&& light : lights_) types.emplace_back(light.first);
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for (const LightBackend& backend : backends) {
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types.push_back(backend.type);
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}
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_hidl_cb(types);
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return Void();
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}
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void Light::setLightBacklight(Type /*type*/, const LightState& state) {
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uint32_t brightness = RgbaToBrightness(state.color, max_screen_brightness_);
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WriteToFile(LCD_LED BRIGHTNESS, brightness);
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}
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void Light::setLightButtons(Type /*type*/, const LightState& state) {
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uint32_t brightness = RgbaToBrightness(state.color, max_button_brightness_);
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for (auto&& button : buttons_) {
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WriteToFile(button, brightness);
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}
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}
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void Light::setLightNotification(Type type, const LightState& state) {
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bool found = false;
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for (auto&& [cur_type, cur_state] : notif_states_) {
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if (cur_type == type) {
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cur_state = state;
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}
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// Fallback to battery light
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if (!found && (cur_type == Type::BATTERY || IsLit(state.color))) {
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found = true;
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LOG(DEBUG) << __func__ << ": type=" << toString(cur_type);
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applyNotificationState(state);
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}
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}
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}
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void Light::applyNotificationState(const LightState& state) {
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uint32_t white_brightness = RgbaToBrightness(state.color, max_led_brightness_);
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uint32_t red_brightness = RgbaToBrightness(state.color, max_red_led_brightness_);
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// Turn off the leds (initially)
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WriteToFile(WHITE BLINK, 0);
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WriteToFile(RED BLINK, 0);
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if (state.flashMode == Flash::TIMED && state.flashOnMs > 0 && state.flashOffMs > 0) {
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/*
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* If the flashOnMs duration is not long enough to fit ramping up
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* and down at the default step duration, step duration is modified
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* to fit.
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*/
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int32_t step_duration = kRampStepDuration;
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int32_t pause_hi = state.flashOnMs - (step_duration * kBrightnessRamp.size() * 2);
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if (pause_hi < 0) {
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step_duration = state.flashOnMs / (kBrightnessRamp.size() * 2);
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pause_hi = 0;
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}
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LOG(DEBUG) << __func__ << ": color=" << std::hex << state.color << std::dec
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<< " onMs=" << state.flashOnMs << " offMs=" << state.flashOffMs;
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// White
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WriteToFile(WHITE START_IDX, 0);
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WriteToFile(WHITE DUTY_PCTS, GetScaledDutyPcts(white_brightness));
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WriteToFile(WHITE PAUSE_LO, static_cast<uint32_t>(state.flashOffMs));
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WriteToFile(WHITE PAUSE_HI, static_cast<uint32_t>(pause_hi));
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WriteToFile(WHITE RAMP_STEP_MS, static_cast<uint32_t>(step_duration));
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WriteToFile(WHITE BLINK, 1);
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// Red
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WriteToFile(RED START_IDX, 0);
|
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WriteToFile(RED DUTY_PCTS, GetScaledDutyPcts(red_brightness));
|
||||
WriteToFile(RED PAUSE_LO, static_cast<uint32_t>(state.flashOffMs));
|
||||
WriteToFile(RED PAUSE_HI, static_cast<uint32_t>(pause_hi));
|
||||
WriteToFile(RED RAMP_STEP_MS, static_cast<uint32_t>(step_duration));
|
||||
WriteToFile(RED BLINK, 1);
|
||||
} else {
|
||||
WriteToFile(WHITE BRIGHTNESS, white_brightness);
|
||||
WriteToFile(RED BRIGHTNESS, red_brightness);
|
||||
}
|
||||
}
|
||||
|
||||
} // namespace implementation
|
||||
} // namespace V2_0
|
||||
} // namespace light
|
||||
|
|
|
|||
|
|
@ -1,5 +1,5 @@
|
|||
/*
|
||||
* Copyright (C) 2017-2020 The LineageOS Project
|
||||
* Copyright (C) 2018 The LineageOS Project
|
||||
*
|
||||
* Licensed under the Apache License, Version 2.0 (the "License");
|
||||
* you may not use this file except in compliance with the License.
|
||||
|
|
@ -14,11 +14,35 @@
|
|||
* limitations under the License.
|
||||
*/
|
||||
|
||||
#pragma once
|
||||
#ifndef ANDROID_HARDWARE_LIGHT_V2_0_LIGHT_H
|
||||
#define ANDROID_HARDWARE_LIGHT_V2_0_LIGHT_H
|
||||
|
||||
#include <android/hardware/light/2.0/ILight.h>
|
||||
#include <hardware/lights.h>
|
||||
#include <hidl/Status.h>
|
||||
#include <map>
|
||||
#include <mutex>
|
||||
#include <vector>
|
||||
|
||||
#include <unordered_map>
|
||||
using ::android::hardware::Return;
|
||||
using ::android::hardware::Void;
|
||||
using ::android::hardware::light::V2_0::Flash;
|
||||
using ::android::hardware::light::V2_0::ILight;
|
||||
using ::android::hardware::light::V2_0::LightState;
|
||||
using ::android::hardware::light::V2_0::Status;
|
||||
using ::android::hardware::light::V2_0::Type;
|
||||
|
||||
typedef void (*LightStateHandler)(const LightState&);
|
||||
|
||||
struct LightBackend {
|
||||
Type type;
|
||||
LightState state;
|
||||
LightStateHandler handler;
|
||||
|
||||
LightBackend(Type type, LightStateHandler handler) : type(type), handler(handler) {
|
||||
this->state.color = 0xff000000;
|
||||
}
|
||||
};
|
||||
|
||||
namespace android {
|
||||
namespace hardware {
|
||||
|
|
@ -26,42 +50,13 @@ namespace light {
|
|||
namespace V2_0 {
|
||||
namespace implementation {
|
||||
|
||||
using ::android::hardware::Return;
|
||||
using ::android::hardware::light::V2_0::ILight;
|
||||
using ::android::hardware::light::V2_0::LightState;
|
||||
using ::android::hardware::light::V2_0::Status;
|
||||
using ::android::hardware::light::V2_0::Type;
|
||||
|
||||
class Light : public ILight {
|
||||
public:
|
||||
Light();
|
||||
|
||||
Return<Status> setLight(Type type, const LightState& state) override;
|
||||
Return<void> getSupportedTypes(getSupportedTypes_cb _hidl_cb) override;
|
||||
|
||||
private:
|
||||
void setLightBacklight(Type type, const LightState& state);
|
||||
void setLightButtons(Type type, const LightState& state);
|
||||
void setLightNotification(Type type, const LightState& state);
|
||||
void applyNotificationState(const LightState& state);
|
||||
|
||||
uint32_t max_button_brightness_;
|
||||
uint32_t max_led_brightness_;
|
||||
uint32_t max_red_led_brightness_;
|
||||
uint32_t max_screen_brightness_;
|
||||
|
||||
std::unordered_map<Type, std::function<void(Type type, const LightState&)>> lights_{
|
||||
{Type::BACKLIGHT, [this](auto&&... args) { setLightBacklight(args...); }},
|
||||
{Type::BATTERY, [this](auto&&... args) { setLightNotification(args...); }},
|
||||
{Type::NOTIFICATIONS, [this](auto&&... args) { setLightNotification(args...); }}};
|
||||
|
||||
// Keep sorted in the order of importance.
|
||||
std::array<std::pair<Type, LightState>, 2> notif_states_ = {{
|
||||
{Type::NOTIFICATIONS, {}},
|
||||
{Type::BATTERY, {}},
|
||||
}};
|
||||
|
||||
std::vector<std::string> buttons_;
|
||||
std::mutex globalLock;
|
||||
};
|
||||
|
||||
} // namespace implementation
|
||||
|
|
@ -69,3 +64,5 @@ class Light : public ILight {
|
|||
} // namespace light
|
||||
} // namespace hardware
|
||||
} // namespace android
|
||||
|
||||
#endif // ANDROID_HARDWARE_LIGHT_V2_0_LIGHT_H
|
||||
|
|
|
|||
|
|
@ -1,6 +1,5 @@
|
|||
/*
|
||||
* Copyright (C) 2018 The Android Open Source Project
|
||||
* Copyright (C) 2020 The LineageOS Project
|
||||
* Copyright (C) 2018 The LineageOS Project
|
||||
*
|
||||
* Licensed under the Apache License, Version 2.0 (the "License");
|
||||
* you may not use this file except in compliance with the License.
|
||||
|
|
@ -25,13 +24,15 @@
|
|||
using android::hardware::configureRpcThreadpool;
|
||||
using android::hardware::joinRpcThreadpool;
|
||||
|
||||
using android::hardware::light::V2_0::ILight;
|
||||
using android::hardware::light::V2_0::implementation::Light;
|
||||
|
||||
using android::OK;
|
||||
using android::sp;
|
||||
using android::status_t;
|
||||
|
||||
int main() {
|
||||
android::sp<Light> service = new Light();
|
||||
sp<ILight> service = new Light();
|
||||
|
||||
configureRpcThreadpool(1, true);
|
||||
|
||||
|
|
|
|||
Loading…
Reference in a new issue