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msm8937-common: Import liblight from caf

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Prateek Chaubey 2018-02-15 16:41:01 +01:00 committed by Isaac Chen
parent b00f55787a
commit 11bd52ff6a
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2
board/lights.mk Normal file
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#Lights
TARGET_PROVIDES_LIBLIGHT:= true

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liblight/Android.mk Normal file
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# Copyright (C) 2008 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.
# 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 $(CLEAR_VARS)
LOCAL_SRC_FILES := lights.c
LOCAL_MODULE_RELATIVE_PATH := hw
LOCAL_SHARED_LIBRARIES := liblog libcutils
LOCAL_CFLAGS := -DLOG_TAG=\"qdlights\"
LOCAL_CLANG := true
LOCAL_MODULE := lights.$(TARGET_BOARD_PLATFORM)
LOCAL_MODULE_TAGS := optional
LOCAL_VENDOR_MODULE := true
include $(BUILD_SHARED_LIBRARY)

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liblight/NOTICE Normal file
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Copyright (c) 2008, 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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"Work" shall mean the work of authorship, whether in Source or
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4. Redistribution. You may reproduce and distribute copies of the
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liblight/lights.c Normal file
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/*
* Copyright (C) 2014, 2017 The Linux Foundation. All rights reserved.
* Not a contribution
* Copyright (C) 2008 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.
* 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_NDEBUG 0
#include <cutils/log.h>
#include <stdint.h>
#include <stdlib.h>
#include <string.h>
#include <unistd.h>
#include <errno.h>
#include <fcntl.h>
#include <pthread.h>
#include <sys/ioctl.h>
#include <sys/types.h>
#include <hardware/lights.h>
#ifndef DEFAULT_LOW_PERSISTENCE_MODE_BRIGHTNESS
#define DEFAULT_LOW_PERSISTENCE_MODE_BRIGHTNESS 0x80
#endif
/******************************************************************************/
static pthread_once_t g_init = PTHREAD_ONCE_INIT;
static pthread_mutex_t g_lock = PTHREAD_MUTEX_INITIALIZER;
static struct light_state_t g_notification;
static struct light_state_t g_battery;
static int g_last_backlight_mode = BRIGHTNESS_MODE_USER;
static int g_attention = 0;
char const*const RED_LED_FILE
= "/sys/class/leds/red/brightness";
char const*const GREEN_LED_FILE
= "/sys/class/leds/green/brightness";
char const*const BLUE_LED_FILE
= "/sys/class/leds/blue/brightness";
char const*const LCD_FILE
= "/sys/class/leds/lcd-backlight/brightness";
char const*const LCD_FILE2
= "/sys/class/backlight/panel0-backlight/brightness";
char const*const BUTTON_FILE
= "/sys/class/leds/button-backlight/brightness";
char const*const RED_BLINK_FILE
= "/sys/class/leds/red/blink";
char const*const GREEN_BLINK_FILE
= "/sys/class/leds/green/blink";
char const*const BLUE_BLINK_FILE
= "/sys/class/leds/blue/blink";
char const*const PERSISTENCE_FILE
= "/sys/class/graphics/fb0/msm_fb_persist_mode";
/**
* 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 = snprintf(buffer, sizeof(buffer), "%d\n", value);
ssize_t amt = write(fd, buffer, (size_t)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);
unsigned int lpEnabled =
state->brightnessMode == BRIGHTNESS_MODE_LOW_PERSISTENCE;
if(!dev) {
return -1;
}
pthread_mutex_lock(&g_lock);
// Toggle low persistence mode state
if ((g_last_backlight_mode != state->brightnessMode && lpEnabled) ||
(!lpEnabled &&
g_last_backlight_mode == BRIGHTNESS_MODE_LOW_PERSISTENCE)) {
if ((err = write_int(PERSISTENCE_FILE, lpEnabled)) != 0) {
ALOGE("%s: Failed to write to %s: %s\n", __FUNCTION__,
PERSISTENCE_FILE, strerror(errno));
}
if (lpEnabled != 0) {
brightness = DEFAULT_LOW_PERSISTENCE_MODE_BRIGHTNESS;
}
}
g_last_backlight_mode = state->brightnessMode;
if (!err) {
if (!access(LCD_FILE, F_OK)) {
err = write_int(LCD_FILE, brightness);
} else {
err = write_int(LCD_FILE2, brightness);
}
}
pthread_mutex_unlock(&g_lock);
return err;
}
static int
set_speaker_light_locked(struct light_device_t* dev,
struct light_state_t const* state)
{
int red, green, blue;
int blink;
int onMS, offMS;
unsigned int colorRGB;
if(!dev) {
return -1;
}
switch (state->flashMode) {
case LIGHT_FLASH_TIMED:
onMS = state->flashOnMS;
offMS = state->flashOffMS;
break;
case LIGHT_FLASH_NONE:
default:
onMS = 0;
offMS = 0;
break;
}
colorRGB = state->color;
#if 0
ALOGD("set_speaker_light_locked mode %d, colorRGB=%08X, onMS=%d, offMS=%d\n",
state->flashMode, colorRGB, onMS, offMS);
#endif
red = (colorRGB >> 16) & 0xFF;
green = (colorRGB >> 8) & 0xFF;
blue = colorRGB & 0xFF;
if (onMS > 0 && offMS > 0) {
/*
* if ON time == OFF time
* use blink mode 2
* else
* use blink mode 1
*/
if (onMS == offMS)
blink = 2;
else
blink = 1;
} else {
blink = 0;
}
if (blink) {
if (red) {
if (write_int(RED_BLINK_FILE, blink))
write_int(RED_LED_FILE, 0);
}
if (green) {
if (write_int(GREEN_BLINK_FILE, blink))
write_int(GREEN_LED_FILE, 0);
}
if (blue) {
if (write_int(BLUE_BLINK_FILE, blink))
write_int(BLUE_LED_FILE, 0);
}
} else {
write_int(RED_LED_FILE, red);
write_int(GREEN_LED_FILE, green);
write_int(BLUE_LED_FILE, blue);
}
return 0;
}
static void
handle_speaker_battery_locked(struct light_device_t* dev)
{
if (is_lit(&g_battery)) {
set_speaker_light_locked(dev, &g_battery);
} else {
set_speaker_light_locked(dev, &g_notification);
}
}
static int
set_light_battery(struct light_device_t* dev,
struct light_state_t const* state)
{
pthread_mutex_lock(&g_lock);
g_battery = *state;
handle_speaker_battery_locked(dev);
pthread_mutex_unlock(&g_lock);
return 0;
}
static int
set_light_notifications(struct light_device_t* dev,
struct light_state_t const* state)
{
pthread_mutex_lock(&g_lock);
g_notification = *state;
handle_speaker_battery_locked(dev);
pthread_mutex_unlock(&g_lock);
return 0;
}
static int
set_light_attention(struct light_device_t* dev,
struct light_state_t const* state)
{
pthread_mutex_lock(&g_lock);
if (state->flashMode == LIGHT_FLASH_HARDWARE) {
g_attention = state->flashOnMS;
} else if (state->flashMode == LIGHT_FLASH_NONE) {
g_attention = 0;
}
handle_speaker_battery_locked(dev);
pthread_mutex_unlock(&g_lock);
return 0;
}
static int
set_light_buttons(struct light_device_t* dev,
struct light_state_t const* state)
{
int err = 0;
if(!dev) {
return -1;
}
pthread_mutex_lock(&g_lock);
err = write_int(BUTTON_FILE, state->color & 0xFF);
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_BATTERY, name))
set_light = set_light_battery;
else if (0 == strcmp(LIGHT_ID_NOTIFICATIONS, name))
set_light = set_light_notifications;
else if (0 == strcmp(LIGHT_ID_BUTTONS, name))
set_light = set_light_buttons;
else if (0 == strcmp(LIGHT_ID_ATTENTION, name))
set_light = set_light_attention;
else
return -EINVAL;
pthread_once(&g_init, init_globals);
struct light_device_t *dev = malloc(sizeof(struct light_device_t));
if(!dev)
return -ENOMEM;
memset(dev, 0, sizeof(*dev));
dev->common.tag = HARDWARE_DEVICE_TAG;
dev->common.version = LIGHTS_DEVICE_API_VERSION_2_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.",
.methods = &lights_module_methods,
};