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tama-common: Switch to common lights HAL

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Change-Id: If515e7c3f6e5b6895076f1d8381fb2c22bd1b3de
This commit is contained in:
LuK1337 2025-01-17 17:06:51 +01:00 • committed by Danny Trunk
commit d2a1b9ff4e
8 changed files with 1 additions and 369 deletions
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2
common.mk
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@ -277,7 +277,7 @@ PRODUCT_PACKAGES += \
# Lights
PRODUCT_PACKAGES += \
android.hardware.light-service.sony_sdm845 \
android.hardware.light-service.lineage \
android.hardware.light@2.0.vendor
# Media

21
lights/Android.bp
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@ -1,21 +0,0 @@
//
// SPDX-FileCopyrightText: 2018-2024 The LineageOS Project
// SPDX-License-Identifier: Apache-2.0
//
cc_binary {
name: "android.hardware.light-service.sony_sdm845",
relative_install_path: "hw",
init_rc: ["android.hardware.light-service.sony_sdm845.rc"],
vintf_fragments: ["android.hardware.light-service.sony_sdm845.xml"],
vendor: true,
srcs: [
"Lights.cpp",
"service.cpp",
],
shared_libs: [
"libbase",
"libbinder_ndk",
"android.hardware.light-V2-ndk",
],
}

232
lights/Lights.cpp
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@ -1,232 +0,0 @@
/*
* SPDX-FileCopyrightText: 2018-2024 The LineageOS Project
* SPDX-License-Identifier: Apache-2.0
*/
#define LOG_TAG "LightsService"
#include "Lights.h"
#include <android-base/logging.h>
#include <fstream>
#define SYS_CLASS "/sys/class/"
#define PANEL_BACKLIGHT SYS_CLASS "backlight/panel0-backlight/"
#define LEDS SYS_CLASS "leds/"
#define RED_LED LEDS "red/"
#define GREEN_LED LEDS "green/"
#define BLUE_LED LEDS "blue/"
#define BLINK "blink"
#define BRIGHTNESS "brightness"
#define DUTY_PCTS "duty_pcts"
#define LUT_FLAGS "lut_flags"
#define PAUSE_HI "pause_hi"
#define PAUSE_LO "pause_lo"
#define RAMP_STEP_MS "ramp_step_ms"
#define START_IDX "start_idx"
/*
* 8 duty percent steps.
*/
#define RAMP_STEPS 8
/*
* Each step will stay on for 50ms by default.
*/
#define RAMP_STEP_DURATION 50
/*
* Each value represents a duty percent (0 - 100) for the led pwm.
*/
static int32_t BRIGHTNESS_RAMP[RAMP_STEPS] = {0, 12, 25, 37, 50, 72, 85, 100};
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()) {
LOG(WARNING) << "failed to write " << value.c_str() << " to " << path.c_str();
return;
}
file << value;
}
static void set(std::string path, int value) {
set(path, std::to_string(value));
}
static void handleBacklight(const HwLightState& state) {
uint32_t brightness = state.color & 0xFF;
set(PANEL_BACKLIGHT BRIGHTNESS, brightness);
}
/*
* Scale each value of the brightness ramp according to the
* brightness of the color.
*/
static std::string getScaledRamp(uint32_t brightness) {
std::string ramp, pad;
for (auto const& step : BRIGHTNESS_RAMP) {
ramp += pad + std::to_string(step * brightness / 0xFF);
pad = ",";
}
return ramp;
}
static void handleNotification(const HwLightState& state) {
uint32_t redBrightness, greenBrightness, blueBrightness, brightness;
/*
* Extract brightness from AARRGGBB.
*/
redBrightness = (state.color >> 16) & 0xFF;
greenBrightness = (state.color >> 8) & 0xFF;
blueBrightness = state.color & 0xFF;
brightness = (state.color >> 24) & 0xFF;
/*
* Scale RGB brightness if the Alpha brightness is within the proper range (0-255).
*/
if (brightness > 0 && brightness < 255) {
redBrightness = (redBrightness * brightness) / 0xFF;
greenBrightness = (greenBrightness * brightness) / 0xFF;
blueBrightness = (blueBrightness * brightness) / 0xFF;
}
/* Disable blinking. */
set(RED_LED BLINK, 0);
set(GREEN_LED BLINK, 0);
set(BLUE_LED BLINK, 0);
if (state.flashMode == FlashMode::TIMED) {
/*
* If the flashOnMs duration is not long enough to fit ramping up
* and down at the default step duration, step duration is modified
* to fit.
*/
int32_t stepDuration = RAMP_STEP_DURATION;
int32_t pauseHi = state.flashOnMs - (stepDuration * RAMP_STEPS * 2);
int32_t pauseLo = state.flashOffMs;
if (pauseHi < 0) {
stepDuration = state.flashOnMs / (RAMP_STEPS * 2);
pauseHi = 0;
}
/* Red */
set(RED_LED LUT_FLAGS, 95);
set(RED_LED START_IDX, 0 * RAMP_STEPS);
set(RED_LED DUTY_PCTS, getScaledRamp(redBrightness));
set(RED_LED PAUSE_LO, pauseLo);
set(RED_LED PAUSE_HI, pauseHi);
set(RED_LED RAMP_STEP_MS, stepDuration);
/* Green */
set(GREEN_LED LUT_FLAGS, 95);
set(GREEN_LED START_IDX, 1 * RAMP_STEPS);
set(GREEN_LED DUTY_PCTS, getScaledRamp(greenBrightness));
set(GREEN_LED PAUSE_LO, pauseLo);
set(GREEN_LED PAUSE_HI, pauseHi);
set(GREEN_LED RAMP_STEP_MS, stepDuration);
/* Blue */
set(BLUE_LED LUT_FLAGS, 95);
set(BLUE_LED START_IDX, 2 * RAMP_STEPS);
set(BLUE_LED DUTY_PCTS, getScaledRamp(blueBrightness));
set(BLUE_LED PAUSE_LO, pauseLo);
set(BLUE_LED PAUSE_HI, pauseHi);
set(BLUE_LED RAMP_STEP_MS, stepDuration);
/* Enable blinking. */
set(RED_LED BLINK, 1);
set(GREEN_LED BLINK, 1);
set(BLUE_LED BLINK, 1);
} else {
set(RED_LED BRIGHTNESS, redBrightness);
set(GREEN_LED BRIGHTNESS, greenBrightness);
set(BLUE_LED BRIGHTNESS, blueBrightness);
}
}
static inline bool isLit(const HwLightState& state) {
return state.color & 0x00ffffff;
}
/* Keep sorted in the order of importance. */
static std::vector<LightBackend> backends = {
{ LightType::ATTENTION, handleNotification },
{ LightType::NOTIFICATIONS, handleNotification },
{ LightType::BATTERY, handleNotification },
{ LightType::BACKLIGHT, handleBacklight },
};
} // anonymous namespace
namespace aidl {
namespace android {
namespace hardware {
namespace light {
ndk::ScopedAStatus Lights::setLightState(int id, const HwLightState& state) {
LightStateHandler handler = nullptr;
LightType type = static_cast<LightType>(id);
/* 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 ndk::ScopedAStatus::fromExceptionCode(EX_UNSUPPORTED_OPERATION);
}
/* 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 ndk::ScopedAStatus::ok();
}
}
/* If no type has been lit up, then turn off the hardware. */
handler(state);
return ndk::ScopedAStatus::ok();
}
ndk::ScopedAStatus Lights::getLights(std::vector<HwLight>* lights) {
int i = 0;
for (const LightBackend& backend : backends) {
HwLight hwLight;
hwLight.id = (int) backend.type;
hwLight.type = backend.type;
hwLight.ordinal = i;
lights->push_back(hwLight);
i++;
}
return ndk::ScopedAStatus::ok();
}
} // namespace light
} // namespace hardware
} // namespace android
} // namespace aidl

48
lights/Lights.h
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@ -1,48 +0,0 @@
/*
* SPDX-FileCopyrightText: 2018-2024 The LineageOS Project
* SPDX-License-Identifier: Apache-2.0
*/
#pragma once
#include <aidl/android/hardware/light/BnLights.h>
#include <mutex>
#include <vector>
using ::aidl::android::hardware::light::BnLights;
using ::aidl::android::hardware::light::FlashMode;
using ::aidl::android::hardware::light::HwLight;
using ::aidl::android::hardware::light::HwLightState;
using ::aidl::android::hardware::light::LightType;
typedef void (*LightStateHandler)(const HwLightState&);
struct LightBackend {
LightType type;
HwLightState state;
LightStateHandler handler;
LightBackend(LightType type, LightStateHandler handler) : type(type), handler(handler) {
this->state.color = 0xff000000;
}
};
namespace aidl {
namespace android {
namespace hardware {
namespace light {
class Lights : public BnLights {
public:
ndk::ScopedAStatus setLightState(int id, const HwLightState& state) override;
ndk::ScopedAStatus getLights(std::vector<HwLight>* types) override;
private:
std::mutex globalLock;
};
} // namespace light
} // namespace hardware
} // namespace android
} // namespace aidl

35
lights/android.hardware.light-service.sony_sdm845.rc
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@ -1,35 +0,0 @@
on boot
# RGB leds
chown system system /sys/class/leds/red/blink
chown system system /sys/class/leds/red/brightness
chown system system /sys/class/leds/red/duty_pcts
chown system system /sys/class/leds/red/lut_flags
chown system system /sys/class/leds/red/pause_hi
chown system system /sys/class/leds/red/pause_lo
chown system system /sys/class/leds/red/ramp_step_ms
chown system system /sys/class/leds/red/start_idx
chown system system /sys/class/leds/green/blink
chown system system /sys/class/leds/green/brightness
chown system system /sys/class/leds/green/duty_pcts
chown system system /sys/class/leds/green/lut_flags
chown system system /sys/class/leds/green/pause_hi
chown system system /sys/class/leds/green/pause_lo
chown system system /sys/class/leds/green/ramp_step_ms
chown system system /sys/class/leds/green/start_idx
chown system system /sys/class/leds/blue/blink
chown system system /sys/class/leds/blue/brightness
chown system system /sys/class/leds/blue/duty_pcts
chown system system /sys/class/leds/blue/lut_flags
chown system system /sys/class/leds/blue/pause_hi
chown system system /sys/class/leds/blue/pause_lo
chown system system /sys/class/leds/blue/ramp_step_ms
chown system system /sys/class/leds/blue/start_idx
service vendor.light-sony_sdm845 /vendor/bin/hw/android.hardware.light-service.sony_sdm845
class hal
user system
group system
# shutting off lights while powering-off
shutdown critical

7
lights/android.hardware.light-service.sony_sdm845.xml
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@ -1,7 +0,0 @@
<manifest version="1.0" type="device">
<hal format="aidl">
<name>android.hardware.light</name>
<version>2</version>
<fqname>ILights/default</fqname>
</hal>
</manifest>

24
lights/service.cpp
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@ -1,24 +0,0 @@
/*
* SPDX-FileCopyrightText: 2018-2024 The LineageOS Project
* SPDX-License-Identifier: Apache-2.0
*/
#include "Lights.h"
#include <android-base/logging.h>
#include <android/binder_manager.h>
#include <android/binder_process.h>
using ::aidl::android::hardware::light::Lights;
int main() {
ABinderProcess_setThreadPoolMaxThreadCount(0);
std::shared_ptr<Lights> lights = ndk::SharedRefBase::make<Lights>();
const std::string instance = std::string() + Lights::descriptor + "/default";
binder_status_t status = AServiceManager_addService(lights->asBinder().get(), instance.c_str());
CHECK_EQ(status, STATUS_OK);
ABinderProcess_joinThreadPool();
return EXIT_FAILURE; // should not reach
}

1
sepolicy/vendor/file_contexts vendored
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@ -82,7 +82,6 @@
/(vendor|system/vendor)/bin/wvkbd u:object_r:wvkbd_exec:s0
# Vendor HALs
/(vendor|system/vendor)/bin/hw/android\.hardware\.light-service\.sony_sdm845 u:object_r:hal_light_default_exec:s0
/(vendor|system/vendor)/bin/hw/fpc_fingerprint@2\.1_HIDL-service u:object_r:hal_fingerprint_default_exec:s0
/(vendor|system/vendor)/bin/hw/vendor\.lineage\.touch@1\.0-service\.tama u:object_r:hal_lineage_touch_default_exec:s0
/(vendor|system/vendor)/bin/hw/vendor\.semc\.hardware\.secd@1\.0-service u:object_r:hal_secd_default_exec:s0