MiPad4/android_device_xiaomi_sdm660-common
1
0
Fork 0
Code Issues Pull requests Projects Releases Packages Wiki Activity Actions

sdm660-common: Support button backlight

Browse source 
Change-Id: Id13a42976df428c95c19eae49e1c114f057510bb
This commit is contained in:
dianlujitao 2020-02-07 00:04:57 +08:00 committed by OdSazib
parent 98a59e0d2c
commit 93f0b0ba58
No known key found for this signature in database
GPG key ID: CB336514F9F5CF69
3 changed files with 36 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

28
light/Light.cpp
View file

@ -21,6 +21,7 @@
#include <android-base/file.h>
#include <android-base/logging.h>
#include <unistd.h>
#include <iomanip>
@ -29,6 +30,8 @@ namespace {
#define LEDS "/sys/class/leds/"
#define LCD_LED LEDS "lcd-backlight/"
#define WHITE LEDS "white/"
#define BUTTON LEDS "button-backlight/"
#define BUTTON1 LEDS "button-backlight1/"
#define BRIGHTNESS "brightness"
#define MAX_BRIGHTNESS "max_brightness"
#define BLINK "blink"
@ -127,6 +130,24 @@ Light::Light() {
max_led_brightness_ = kDefaultMaxLedBrightness;
LOG(ERROR) << "Failed to read max LED brightness, fallback to " << kDefaultMaxLedBrightness;
}
if (!access(BUTTON BRIGHTNESS, W_OK)) {
lights_.emplace(std::make_pair(Type::BUTTONS,
[this](auto&&... args) { setLightButtons(args...); }));
buttons_.emplace_back(BUTTON BRIGHTNESS);
if (!access(BUTTON1 BRIGHTNESS, W_OK)) {
buttons_.emplace_back(BUTTON1 BRIGHTNESS);
}
if (ReadFileToString(BUTTON MAX_BRIGHTNESS, &buf)) {
max_button_brightness_ = std::stoi(buf);
} else {
max_button_brightness_ = kDefaultMaxLedBrightness;
LOG(ERROR) << "Failed to read max button brightness, fallback to "
<< kDefaultMaxLedBrightness;
}
}
}
Return<Status> Light::setLight(Type type, const LightState& state) {
@ -156,6 +177,13 @@ void Light::setLightBacklight(Type /*type*/, const LightState& state) {
WriteToFile(LCD_LED BRIGHTNESS, brightness);
}
void Light::setLightButtons(Type /*type*/, const LightState& state) {
uint32_t brightness = RgbaToBrightness(state.color, max_button_brightness_);
for (auto&& button : buttons_) {
WriteToFile(button, brightness);
}
}
void Light::setLightNotification(Type type, const LightState& state) {
bool found = false;
for (auto&& [cur_type, cur_state] : notif_states_) {

4
light/Light.h
View file

@ -41,9 +41,11 @@ class Light : public ILight {
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_screen_brightness_;
@ -57,6 +59,8 @@ class Light : public ILight {
{Type::NOTIFICATIONS, {}},
{Type::BATTERY, {}},
}};
std::vector<std::string> buttons_;
};
} // namespace implementation

4
light/android.hardware.light@2.0-service.xiaomi_sdm660.rc
View file

@ -16,6 +16,10 @@ on boot
chmod 660 /sys/class/leds/white/pause_lo
chmod 660 /sys/class/leds/white/ramp_step_ms
chmod 660 /sys/class/leds/white/start_idx
chown system system /sys/class/leds/button-backlight/max_brightness
chown system system /sys/class/leds/button-backlight1/brightness
chown system system /sys/class/leds/button-backlight1/max_brightness
chown system system /sys/class/leds/lcd-backlight/max_brightness