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davinci: light: Import HAL from Xiaomi msm8998-common

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Change-Id: Ieee4277f15927b4522deaec9a709809cf6db6fea
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Demon000 2019-05-14 19:32:11 +00:00 committed by Arian
parent 06d11196a5
commit 3e94ffe9a3
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GPG Key ID: 48029380598CE3B9
6 changed files with 351 additions and 0 deletions
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4
device.mk
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@ -74,6 +74,10 @@ PRODUCT_PACKAGES += \
PRODUCT_COPY_FILES += \ PRODUCT_COPY_FILES += \
$(LOCAL_PATH)/configs/security/sec_config:$(TARGET_COPY_OUT_VENDOR)/etc/sec_config $(LOCAL_PATH)/configs/security/sec_config:$(TARGET_COPY_OUT_VENDOR)/etc/sec_config
# Lights
PRODUCT_PACKAGES += \
android.hardware.light@2.0-service.davinci
# Media # Media
PRODUCT_COPY_FILES += \ PRODUCT_COPY_FILES += \
$(LOCAL_PATH)/configs/security/mediacodec.policy:$(TARGET_COPY_OUT_VENDOR)/etc/seccomp_policy/mediacodec.policy $(LOCAL_PATH)/configs/security/mediacodec.policy:$(TARGET_COPY_OUT_VENDOR)/etc/seccomp_policy/mediacodec.policy

35
light/Android.bp Normal file
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// Copyright (C) 2019 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.
// You may obtain a copy of the License at
//
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
cc_binary {
relative_install_path: "hw",
defaults: ["hidl_defaults"],
name: "android.hardware.light@2.0-service.davinci",
init_rc: ["android.hardware.light@2.0-service.davinci.rc"],
srcs: [
"service.cpp",
"Light.cpp",
],
vendor: true,
shared_libs: [
"android.hardware.light@2.0",
"libbase",
"libhardware",
"libhidlbase",
"libhidltransport",
"libhwbinder",
"liblog",
"libutils",
],
}

176
light/Light.cpp Normal file
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/*
* Copyright (C) 2018-2019 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.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#define LOG_TAG "LightService"
#include <log/log.h>
#include "Light.h"
#include <fstream>
#define LCD_LED "/sys/class/backlight/panel0-backlight/"
#define WHITE_LED "/sys/class/leds/white/"
#define BREATH "breath"
#define BRIGHTNESS "brightness"
#define MAX_LED_BRIGHTNESS 255
#define MAX_LCD_BRIGHTNESS 4095
namespace {
/*
* Write value to path and close file.
*/
static void set(std::string path, std::string value) {
std::ofstream file(path);
if (!file.is_open()) {
ALOGW("failed to write %s to %s", value.c_str(), path.c_str());
return;
}
file << value;
}
static void set(std::string path, int value) {
set(path, std::to_string(value));
}
static uint32_t getBrightness(const LightState& state) {
uint32_t alpha, red, green, blue;
/*
* Extract brightness from AARRGGBB.
*/
alpha = (state.color >> 24) & 0xFF;
red = (state.color >> 16) & 0xFF;
green = (state.color >> 8) & 0xFF;
blue = state.color & 0xFF;
/*
* Scale RGB brightness if Alpha brightness is not 0xFF.
*/
if (alpha != 0xFF) {
red = red * alpha / 0xFF;
green = green * alpha / 0xFF;
blue = blue * alpha / 0xFF;
}
return (77 * red + 150 * green + 29 * blue) >> 8;
}
static inline uint32_t scaleBrightness(uint32_t brightness, uint32_t maxBrightness) {
return brightness * maxBrightness / 0xFF;
}
static inline uint32_t getScaledBrightness(const LightState& state, uint32_t maxBrightness) {
return scaleBrightness(getBrightness(state), maxBrightness);
}
static void handleBacklight(const LightState& state) {
uint32_t brightness = getScaledBrightness(state, MAX_LCD_BRIGHTNESS);
set(LCD_LED BRIGHTNESS, brightness);
}
static void handleNotification(const LightState& state) {
uint32_t whiteBrightness = getScaledBrightness(state, MAX_LED_BRIGHTNESS);
/* Disable breathing or blinking */
set(WHITE_LED BREATH, 0);
switch (state.flashMode) {
case Flash::HARDWARE:
case Flash::TIMED:
/* Breathing */
set(WHITE_LED BREATH, 1);
break;
case Flash::NONE:
default:
set(WHITE_LED BRIGHTNESS, whiteBrightness);
}
}
static inline bool isLit(const LightState& state) {
return state.color & 0x00ffffff;
}
/* Keep sorted in the order of importance. */
static std::vector<LightBackend> backends = {
{ Type::ATTENTION, handleNotification },
{ Type::NOTIFICATIONS, handleNotification },
{ Type::BATTERY, handleNotification },
{ Type::BACKLIGHT, handleBacklight },
};
} // anonymous namespace
namespace android {
namespace hardware {
namespace light {
namespace V2_0 {
namespace implementation {
Return<Status> Light::setLight(Type type, const LightState& state) {
LightStateHandler handler = nullptr;
/* Lock global mutex until light state is updated. */
std::lock_guard<std::mutex> lock(globalLock);
/* Update the cached state value for the current type. */
for (LightBackend& backend : backends) {
if (backend.type == type) {
backend.state = state;
handler = backend.handler;
}
}
/* If no handler has been found, then the type is not supported. */
if (!handler) {
return Status::LIGHT_NOT_SUPPORTED;
}
/* Light up the type with the highest priority that matches the current handler. */
for (LightBackend& backend : backends) {
if (handler == backend.handler && isLit(backend.state)) {
handler(backend.state);
return Status::SUCCESS;
}
}
/* If no type has been lit up, then turn off the hardware. */
handler(state);
return Status::SUCCESS;
}
Return<void> Light::getSupportedTypes(getSupportedTypes_cb _hidl_cb) {
std::vector<Type> types;
for (const LightBackend& backend : backends) {
types.push_back(backend.type);
}
_hidl_cb(types);
return Void();
}
} // namespace implementation
} // namespace V2_0
} // namespace light
} // namespace hardware
} // namespace android

68
light/Light.h Normal file
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/*
* 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.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#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>
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 {
namespace light {
namespace V2_0 {
namespace implementation {
class Light : public ILight {
public:
Return<Status> setLight(Type type, const LightState& state) override;
Return<void> getSupportedTypes(getSupportedTypes_cb _hidl_cb) override;
private:
std::mutex globalLock;
};
} // namespace implementation
} // namespace V2_0
} // namespace light
} // namespace hardware
} // namespace android
#endif // ANDROID_HARDWARE_LIGHT_V2_0_LIGHT_H

18
light/android.hardware.light@2.0-service.davinci.rc Normal file
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@ -0,0 +1,18 @@
on boot
chown system system /sys/class/backlight/panel0-backlight/brightness
chown system system /sys/class/backlight/panel0-backlight/max_brightness
chown system system /sys/class/leds/white/brightness
chown system system /sys/class/leds/white/breath
chmod 0644 /sys/class/backlight/panel0-backlight/brightness
chmod 0644 /sys/class/backlight/panel0-backlight/max_brightness
chmod 0644 /sys/class/leds/white/brightness
chmod 0644 /sys/class/leds/white/breath
service vendor.light-hal-2-0 /vendor/bin/hw/android.hardware.light@2.0-service.davinci
interface android.hardware.light@2.0::ILight default
class hal
user system
group system
# shutting off lights while powering-off
shutdown critical

50
light/service.cpp Normal file
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/*
* 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.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#define LOG_TAG "android.hardware.light@2.0-service.davinci"
#include <hidl/HidlTransportSupport.h>
#include "Light.h"
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() {
sp<ILight> service = new Light();
configureRpcThreadpool(1, true);
status_t status = service->registerAsService();
if (status != OK) {
ALOGE("Cannot register Light HAL service.");
return 1;
}
ALOGI("Light HAL service ready.");
joinRpcThreadpool();
ALOGI("Light HAL service failed to join thread pool.");
return 1;
}