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sanders: Convert lights HAL to native binderized HAL

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[Adapted from libra for griffin]

Signed-off-by: Erfan Abdi <erfangplus@gmail.com>
Signed-off-by: therootlord <igor_cestari@hotmail.com>
This commit is contained in:
Demon000
2017-09-24 16:30:56 +02:00
committed by therootlord
parent 2cbf835dee
commit 2432fd6916
12 changed files with 287 additions and 438 deletions
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3
Android.bp Normal file
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@@ -0,0 +1,3 @@
subdirs = [
"light",
]

3
device.mk
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@@ -243,8 +243,7 @@ PRODUCT_PACKAGES += \
# Lights
PRODUCT_PACKAGES += \
android.hardware.light@2.0-impl \
android.hardware.light@2.0-service \
lights.msm8953
android.hardware.light@2.0-service.sanders
# Media
PRODUCT_PACKAGES += \

28
liblight/Android.mk
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@@ -1,28 +0,0 @@
#
# Copyright (C) 2016 The CyanogenMod 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.
LOCAL_PATH:= $(call my-dir)
# HAL module implemenation stored in
# hw/<COPYPIX_HARDWARE_MODULE_ID>.<ro.board.platform>.so
include $(CLEAR_VARS)
LOCAL_MODULE_RELATIVE_PATH := hw
LOCAL_SHARED_LIBRARIES := liblog
LOCAL_SRC_FILES := lights.c
LOCAL_MODULE := lights.$(TARGET_BOARD_PLATFORM)
LOCAL_MODULE_TAGS := optional
LOCAL_VENDOR_MODULE := true
include $(BUILD_SHARED_LIBRARY)

190
liblight/NOTICE
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@@ -1,190 +0,0 @@
Copyright (c) 2014, The Android Open Source Project
Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
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.
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217
liblight/lights.c
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@@ -1,217 +0,0 @@
/*
* Copyright (C) 2015 The CyanogenMod 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.
*/
#include <cutils/log.h>
#include <cutils/properties.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <errno.h>
#include <fcntl.h>
#include <pthread.h>
#include <math.h>
#include <sys/ioctl.h>
#include <sys/types.h>
#include <hardware/lights.h>
/******************************************************************************/
#define LED_LIGHT_OFF 0
#define LED_LIGHT_BLINK_FAST 1
#define LED_LIGHT_BLINK_SLOW 2
#define LED_LIGHT_SOLID_ON 3
static pthread_once_t g_init = PTHREAD_ONCE_INIT;
static pthread_mutex_t g_lock = PTHREAD_MUTEX_INITIALIZER;
char const*const LED_FILE
= "/sys/class/leds/charging/brightness";
char const*const LCD_FILE
= "/sys/class/leds/lcd-backlight/brightness";
/**
* device methods
*/
void init_globals(void)
{
// init the mutex
pthread_mutex_init(&g_lock, NULL);
}
static int
write_int(char const* path, int value)
{
int fd;
static int already_warned = 0;
fd = open(path, O_RDWR);
if (fd >= 0) {
char buffer[20];
int bytes = sprintf(buffer, "%d\n", value);
int amt = write(fd, buffer, bytes);
close(fd);
return amt == -1 ? -errno : 0;
} else {
if (already_warned == 0) {
ALOGE("write_int failed to open %s\n", path);
already_warned = 1;
}
return -errno;
}
}
static int
is_lit(struct light_state_t const* state)
{
return state->color & 0x00ffffff;
}
static int
rgb_to_brightness(struct light_state_t const* state)
{
int color = state->color & 0x00ffffff;
return ((77*((color>>16)&0x00ff))
+ (150*((color>>8)&0x00ff)) + (29*(color&0x00ff))) >> 8;
}
static int
set_light_backlight(struct light_device_t* dev,
struct light_state_t const* state)
{
int err = 0;
int brightness = rgb_to_brightness(state);
pthread_mutex_lock(&g_lock);
err = write_int(LCD_FILE, brightness);
pthread_mutex_unlock(&g_lock);
return err;
}
static int
set_light_battery(struct light_device_t* dev,
struct light_state_t const* state)
{
int brightness_level;
int err = 0;
if (!dev)
return -1;
pthread_mutex_lock(&g_lock);
if (is_lit(state))
brightness_level = LED_LIGHT_SOLID_ON;
else
brightness_level = LED_LIGHT_OFF;
err = write_int(LED_FILE, brightness_level);
pthread_mutex_unlock(&g_lock);
return err;
}
static int
set_light_notifications(struct light_device_t* dev,
struct light_state_t const* state)
{
int brightness_level;
int err = 0;
if (!dev)
return -1;
pthread_mutex_lock(&g_lock);
if (is_lit(state))
brightness_level = LED_LIGHT_BLINK_SLOW;
else
brightness_level = LED_LIGHT_OFF;
err = write_int(LED_FILE, brightness_level);
pthread_mutex_unlock(&g_lock);
return err;
}
/** Close the lights device */
static int
close_lights(struct light_device_t *dev)
{
if (dev) {
free(dev);
}
return 0;
}
/******************************************************************************/
/**
* module methods
*/
/** Open a new instance of a lights device using name */
static int open_lights(const struct hw_module_t* module, char const* name,
struct hw_device_t** device)
{
int (*set_light)(struct light_device_t* dev,
struct light_state_t const* state);
if (0 == strcmp(LIGHT_ID_BACKLIGHT, name))
set_light = set_light_backlight;
else if (0 == strcmp(LIGHT_ID_NOTIFICATIONS, name))
set_light = set_light_notifications;
else if (0 == strcmp(LIGHT_ID_BATTERY, name))
set_light = set_light_battery;
else
return -EINVAL;
pthread_once(&g_init, init_globals);
struct light_device_t *dev = malloc(sizeof(struct light_device_t));
memset(dev, 0, sizeof(*dev));
dev->common.tag = HARDWARE_DEVICE_TAG;
dev->common.version = 0;
dev->common.module = (struct hw_module_t*)module;
dev->common.close = (int (*)(struct hw_device_t*))close_lights;
dev->set_light = set_light;
*device = (struct hw_device_t*)dev;
return 0;
}
static struct hw_module_methods_t lights_module_methods = {
.open = open_lights,
};
/*
* The lights Module
*/
struct hw_module_t HAL_MODULE_INFO_SYM = {
.tag = HARDWARE_MODULE_TAG,
.version_major = 1,
.version_minor = 0,
.id = LIGHTS_HARDWARE_MODULE_ID,
.name = "lights Module",
.author = "Google, Inc., dhacker29",
.methods = &lights_module_methods,
};

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light/Android.bp Normal file
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//
// Copyright (C) 2017 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.sanders",
proprietary: true,
init_rc: ["android.hardware.light@2.0-service.sanders.rc"],
srcs: ["service.cpp", "Light.cpp"],
shared_libs: [
"libhardware",
"libhidlbase",
"libhidltransport",
"liblog",
"libhwbinder",
"libutils",
"android.hardware.light@2.0",
],
}

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light/Light.cpp Normal file
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/*
* Copyright (C) 2017 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>
namespace android {
namespace hardware {
namespace light {
namespace V2_0 {
namespace implementation {
#define LED_LIGHT_OFF 0
#define LED_LIGHT_BLINK_FAST 1
#define LED_LIGHT_BLINK_SLOW 2
#define LED_LIGHT_SOLID_ON 3
#define LEDS "/sys/class/leds/"
#define LCD_LED LEDS "lcd-backlight/"
#define CHARGING_LED LEDS "charging/"
#define BRIGHTNESS "brightness"
/*
* Write value to path and close file.
*/
static void set(std::string path, std::string value) {
std::ofstream file(path);
file << value;
}
static void set(std::string path, int value) {
set(path, std::to_string(value));
}
static uint32_t is_lit(const LightState& state) {
return state.color & 0x00ffffff;
}
static uint32_t rgbToBrightness(const LightState& state) {
uint32_t color = state.color & 0x00ffffff;
return ((77 * ((color >> 16) & 0xff)) + (150 * ((color >> 8) & 0xff)) +
(29 * (color & 0xff))) >> 8;
}
static void handleBacklight(const LightState& state) {
uint32_t brightness = rgbToBrightness(state);
set(LCD_LED BRIGHTNESS, brightness);
}
static void handleBattery(const LightState& state) {
uint32_t Brightness;
if (is_lit(state))
Brightness = LED_LIGHT_SOLID_ON;
else
Brightness = LED_LIGHT_OFF;
set(CHARGING_LED BRIGHTNESS, Brightness);
}
static void handleNotification(const LightState& state) {
uint32_t Brightness;
if (is_lit(state))
Brightness = LED_LIGHT_BLINK_SLOW;
else
Brightness = LED_LIGHT_OFF;
set(CHARGING_LED BRIGHTNESS, Brightness);
}
static std::map<Type, std::function<void(const LightState&)>> lights = {
{Type::BACKLIGHT, handleBacklight},
{Type::BATTERY, handleBattery},
{Type::NOTIFICATIONS, handleNotification},
{Type::ATTENTION, handleNotification},
};
Light::Light() {}
Return<Status> Light::setLight(Type type, const LightState& state) {
auto it = lights.find(type);
if (it == lights.end()) {
return Status::LIGHT_NOT_SUPPORTED;
}
/*
* Lock global mutex until light state is updated.
*/
std::lock_guard<std::mutex> lock(globalLock);
it->second(state);
return Status::SUCCESS;
}
Return<void> Light::getSupportedTypes(getSupportedTypes_cb _hidl_cb) {
std::vector<Type> types;
for (auto const& light : lights) types.push_back(light.first);
_hidl_cb(types);
return Void();
}
} // namespace implementation
} // namespace V2_0
} // namespace light
} // namespace hardware
} // namespace android

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light/Light.h Normal file
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/*
* Copyright (C) 2017 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>
namespace android {
namespace hardware {
namespace light {
namespace V2_0 {
namespace implementation {
using ::android::hardware::Return;
using ::android::hardware::Void;
using ::android::hardware::hidl_vec;
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:
std::mutex globalLock;
};
} // namespace implementation
} // namespace V2_0
} // namespace light
} // namespace hardware
} // namespace android
#endif // ANDROID_HARDWARE_LIGHT_V2_0_LIGHT_H

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light/android.hardware.light@2.0-service.sanders.rc Normal file
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service vendor.light-hal-2-0 /vendor/bin/hw/android.hardware.light@2.0-service.sanders
class hal
user system
group system
shutdown critical

50
light/service.cpp Normal file
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/*
* Copyright 2017 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.sanders"
#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;
}

4
sepolicy/vendor/file_contexts vendored
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@@ -128,3 +128,7 @@
# Fingerprint custom hal
/(vendor|system/vendor)/bin/hw/android\.hardware\.biometrics\.fingerprint@2\.1-service_32 u:object_r:hal_fingerprint_default_exec:s0
# Light HAL
/(vendor|system/vendor)/bin/hw/android\.hardware\.light@2\.0-service.sanders u:object_r:hal_light_default_exec:s0
/sys/devices/soc/1a00000.qcom,mdss_mdp/1a00000.qcom,mdss_mdp:qcom,mdss_fb_primary/leds/lcd-backlight/brightness u:object_r:sysfs_leds:s0
/sys/devices/soc/leds-atc-20/leds/charging/brightness u:object_r:sysfs_leds:s0

2
sepolicy/vendor/hal_light_default.te vendored
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@@ -1 +1 @@
allow hal_light_default sysfs:file { open read write };
allow hal_light_default sysfs_leds:file rw_file_perms;