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android_device_htc_leo/liblights/lights_leo.c
charansingh 0344dd1ee4 fix sensors code and broken build
2011-01-24 18:10:37 +05:30

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/*
* Copyright (C) 2009 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_TAG "lights_leo"
#include <cutils/log.h>
#include <cutils/properties.h>
#include <stdint.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>
#include <linux/input.h>
#include <time.h>
#include <sys/stat.h>
#include "events.h"
#define LIGHT_ATTENTION 1
#define LIGHT_NOTIFY 2
//#define ENABLE_LCDSAVE
//#define ENABLE_BATTERY_POOL
#define ENABLE_RADIO_POOL
#define LED_DEBUG 1
#if LED_DEBUG
# define D(...) LOGD(__VA_ARGS__)
#else
# define D(...) ((void)0)
#endif
/******************************************************************************/
static struct light_state_t *g_notify;
static struct light_state_t *g_attention;
static pthread_once_t g_init = PTHREAD_ONCE_INIT;
static pthread_mutex_t g_lock = PTHREAD_MUTEX_INITIALIZER;
#ifdef ENABLE_LCDSAVE
static int g_current_backlight = 0;
#endif
static int g_ts = 0;
static int g_backlight = 255;
static int g_buttons = 0;
struct led_prop {
const char *filename;
int fd;
int value;
};
struct led {
struct led_prop brightness;
struct led_prop blink;
};
enum {
BUTTONS_LED,
GREEN_LED,
AMBER_LED,
LCD_BACKLIGHT,
NUM_LEDS,
};
struct led leds[NUM_LEDS] = {
[BUTTONS_LED] = {
.brightness = { "/sys/class/leds/button-backlight/brightness", 0, 0},
.blink = {NULL, 0, 0},
},
[GREEN_LED] = {
.brightness = { "/sys/class/leds/green/brightness", 0, 0},
.blink = { "/sys/class/leds/green/blink", 0, 0},
},
[AMBER_LED] = {
.brightness = { "/sys/class/leds/amber/brightness", 0, 0},
.blink = { "/sys/class/leds/amber/blink", 0, 0},
},
[LCD_BACKLIGHT] = {
.brightness = { "/sys/class/leds/lcd-backlight/brightness", 0, 0},
.blink = {NULL, 0, 0},
},
};
/**
* device methods
*/
static int init_prop(struct led_prop *prop)
{
int fd;
prop->fd = -1;
if (!prop->filename)
return 0;
fd = open(prop->filename, O_RDWR);
if (fd < 0) {
LOGE("init_prop: %s cannot be opened (%s)\n", prop->filename,
strerror(errno));
return -errno;
}
prop->fd = fd;
return 0;
}
static void close_prop(struct led_prop *prop)
{
int fd;
if (prop->fd > 0)
close(prop->fd);
return;
}
void init_globals(void)
{
int i;
pthread_mutex_init(&g_lock, NULL);
for (i = 0; i < NUM_LEDS; ++i) {
init_prop(&leds[i].brightness);
if (leds[i].blink.filename) {
init_prop(&leds[i].blink);
}
}
g_attention = malloc(sizeof(struct light_state_t));
memset(g_attention, 0, sizeof(*g_attention));
g_notify = malloc(sizeof(struct light_state_t));
memset(g_notify, 0, sizeof(*g_notify));
}
static int
write_int(struct led_prop *prop, int value)
{
char buffer[20];
int bytes;
int amt;
if (prop->fd < 0)
return 0;
if (prop->value != value) {
//LOGV("%s %s: 0x%x\n", __func__, prop->filename, value);
bytes = snprintf(buffer, sizeof(buffer), "%d\n", value);
while (bytes > 0) {
amt = write(prop->fd, buffer, bytes);
if (amt < 0) {
if (errno == EINTR)
continue;
return -errno;
}
bytes -= amt;
}
prop->value = value;
}
return 0;
}
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;
}
//=====================================================================================
#ifdef ENABLE_BATTERY_POLL
static pthread_t battery_check_t = 0;
static int last_battery_state = 0;
void *battery_state_thread(void *arg){
int fd,size, rs;
char state[20];
struct timespec t;
t.tv_nsec = 0;
t.tv_sec = 5;
fd = open("/sys/class/power_supply/battery/status",O_RDONLY | O_NDELAY);
if(fd < 0) {
LOGE("Couldn't open /sys/class/power_supply/battery/status\n");
return 0;
}
for (;;) {
memset(&state[0], 0, sizeof(state));
read(fd, state,20);
close(fd);
rs=0;
rs = sprintf(state,"%s",state);
if ( last_battery_state != rs){
last_battery_state=rs;
if ( rs == 9){ // Charging
write_int(&leds[GREEN_LED].brightness, 0);
write_int(&leds[AMBER_LED].brightness, 1);
write_int(&leds[AMBER_LED].blink, 0);
}else if(rs == 5){ // FULL
write_int(&leds[GREEN_LED].brightness, 1);
write_int(&leds[AMBER_LED].brightness, 0);
write_int(&leds[GREEN_LED].blink, 0);
}
}
nanosleep(&t,NULL);
}
close(fd);
return 0;
}
void start_battery_thread(){
if (battery_check_t == 0) //ensure only 1 thread
pthread_create(&battery_check_t, NULL, battery_state_thread, NULL);
return;
}
#endif
//=====================================================================================
#ifdef ENABLE_RADIO_POOL
static int last_radio_state = 0;
#endif
static pthread_t events_ct = 0;
static time_t keys_tm;
#ifdef ENABLE_LCDSAVE
static time_t abs_tm;
static time_t last_activity_tm;
static int user_activity_idle() {
int fd;
int ret =0;
char tmp[20];
fd= open("/sys/android_power/auto_off_timeout",O_RDONLY);
if(fd < 0) {
LOGE("Couldn't open /sys/android_power/auto_off_timeout\n");
return 0;
}
memset(&tmp[0], 0, sizeof(tmp));
read(fd, tmp,20);
D("@@ %s->%s\n", __func__, tmp);
close(fd);
return (ret);
}
#endif
static int
switch_led_button(int on) {
int err = 0;
if (g_buttons!=on) {
//D("@@ %s->%s\n", __func__, g_buttons?"ON":"OFF");
err = write_int(&leds[BUTTONS_LED].brightness, on);
keys_tm = time(NULL) + (8*on); // switch off button keypad after 8 seconds
g_buttons = on;
}
return err;
}
static int
set_led_backlight(int level) {
int err = 0;
//D("%s: [%d %d %d]\n", __func__, level, g_backlight, g_current_backlight);
if (g_backlight != level ){
err = write_int(&leds[LCD_BACKLIGHT].brightness, level);
g_backlight = level;
}
#ifdef ENABLE_LCDSAVE
if (level>=g_current_backlight){
g_current_backlight=level;
abs_tm = time(NULL) + (10);
}
#endif
return err;
}
void *events_cthread(void *arg) {
#ifdef ENABLE_RADIO_POOL
int radio_state = 0;
char sim_state[PROPERTY_VALUE_MAX];
#endif
struct input_event ev;
struct timespec t;
time_t a_tm, k_tm;
//int fd;
t.tv_nsec= 10000*1000;
t.tv_sec = 0;
ev_init();
for (;;) {
/* radio events tracking */
#ifdef ENABLE_RADIO_POOL
radio_state = 0;
if (property_get("gsm.sim.state", sim_state, NULL) && (strcmp(sim_state, "READY")==0)) {
radio_state = 1;
}
//radio state changed
if ( last_radio_state != radio_state){
D("@@ %s: |%s| %d->%d\n", __func__, sim_state, last_radio_state, radio_state );
//green blink if radio is on
write_int(&leds[AMBER_LED].brightness, radio_state?0:1);
write_int(&leds[GREEN_LED].brightness, radio_state?1:0);
write_int(&leds[GREEN_LED].blink, radio_state?1:0);
last_radio_state=radio_state;
}
#endif
/* battery events tracking */
/* button events tracking */
ev_get(&ev, 1);
if (ev.type==EV_KEY) {
if (ev.value == 1){
switch (ev.code) {
case BTN_TOUCH:
#ifdef ENABLE_LCDSAVE
if (g_backlight > 0) && (abs_tm==0)
set_led_backlight(g_current_backlight);
}
#endif
break;
case KEY_SEND:
case KEY_MENU:
case KEY_HOME:
case KEY_BACK:
case KEY_END:
case KEY_POWER:
#ifdef ENABLE_LCDSAVE
if (abs_tm==0) {set_led_backlight(g_current_backlight);}
#endif
switch_led_button(1);
sleep(1);
break;
#ifdef ENABLE_LCDSAVE
case KEY_VOLUMEUP:
case KEY_VOLUMEDOWN:
if (abs_tm==0) { set_led_backlight(g_current_backlight);}
break;
#endif
default:
/*LOGD("keys: code %d, value %d\n", ev.code, ev.value);*/
sleep(1);
break;
}
}
}
//=========================
#ifdef ENABLE_LCDSAVE
if (g_backlight > 0) {
a_tm = time(NULL);
//D("%ld %ld\n", a_tm, abs_tm);
if ((abs_tm>0) && (a_tm >= abs_tm) && (user_activity_idle())) {
//D("LCD_BACKLIGHT->down brightness\n");
set_led_backlight(50);
//write_int(&leds[LCD_BACKLIGHT].brightness, 50);
abs_tm = 0;
}
}
#endif
k_tm = time(NULL);
//D("[%ld][%ld][%d][%d %d %d][%d]\n", tm, keys_tm, ev.type, ev.code, ev.value, g_buttons, g_backlight);
if (g_buttons==1) {
if (k_tm == keys_tm || g_backlight == 0){
switch_led_button(0);
sleep(1);
}
}
//=========================
nanosleep(&t,NULL); //avoid 100% CPU usage by system_server
}
ev_exit();
events_ct = 0;
return 0;
}
void start_events_thread() {
if (events_ct == 0) //ensure only 1 thread
pthread_create(&events_ct, NULL, events_cthread, NULL);
return;
}
//=================================================================================================
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);
LOGV("%s brightness=%d color=0x%08x",
__func__,brightness, state->color);
pthread_mutex_lock(&g_lock);
set_led_backlight(brightness);
pthread_mutex_unlock(&g_lock);
return err;
}
static int
set_light_buttons(struct light_device_t* dev,
struct light_state_t const* state) {
int err = 0;
int on = is_lit(state);
pthread_mutex_lock(&g_lock);
LOGV("%s mode=%d color=0x%08x",
__func__,state->flashMode, state->color);
switch_led_button(on);
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 len;
unsigned int colorRGB;
colorRGB = state->color & 0xFFFFFF;
D("@@ %s colorRGB=%08X, state->flashMode:%d\n", __func__, colorRGB, state->flashMode);
/*if (colorRGB ==0) return 0;*/
int red = (colorRGB >> 16)&0xFF;
int green = (colorRGB >> 8)&0xFF;
int blue = (colorRGB) & 0xFF;
int g_blink = 0;
switch (state->flashMode) {
case LIGHT_FLASH_HARDWARE:
g_blink = 3;
break;
case LIGHT_FLASH_TIMED:
g_blink = 1;
break;
case LIGHT_FLASH_NONE:
g_blink = 0;
break;
default:
LOGE("set_led_state colorRGB=%08X, unknown mode %d\n",
colorRGB, state->flashMode);
break;
}
if (red) {
D("@@ %s AMBER, blink: %d\n", __func__, g_blink);
write_int(&leds[GREEN_LED].brightness, 0);
write_int(&leds[AMBER_LED].brightness, 1);
write_int(&leds[AMBER_LED].blink, g_blink);
} else if (green) {
D("@@ %s GREEN, blink: %d\n", __func__, g_blink);
write_int(&leds[AMBER_LED].brightness, 0);
write_int(&leds[GREEN_LED].brightness, 1);
write_int(&leds[GREEN_LED].blink, g_blink);
} else {
write_int(&leds[GREEN_LED].brightness, 0);
write_int(&leds[GREEN_LED].blink, 0);
write_int(&leds[AMBER_LED].brightness, 0);
write_int(&leds[AMBER_LED].blink, 0);
}
return 0;
}
static int
set_light_battery(struct light_device_t* dev,
struct light_state_t const* state) {
pthread_mutex_lock(&g_lock);
LOGV("%s mode=%d color=0x%08x",
__func__,state->flashMode, state->color);
set_speaker_light_locked(dev, state);
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);
LOGV("%s mode=%d color=0x%08x",
__func__,state->flashMode, state->color);
pthread_mutex_unlock(&g_lock);
return 0;
}
static int
set_light_attention(struct light_device_t* dev,
struct light_state_t const* state) {
LOGV("%s color=0x%08x mode=0x%08x submode=0x%08x",
__func__, state->color, state->flashMode, state->flashOnMS);
pthread_mutex_lock(&g_lock);
/*
/lights_leo( 252): set_light_attention color=0x00ffffff mode=0x00000002 submode=0x00000003
/lights_leo( 252): set_light_attention color=0x00000000 mode=0x00000002 submode=0x00000000
/lights_leo( 252): set_light_attention color=0x00ffffff mode=0x00000002 submode=0x00000007
/lights_leo( 252): set_light_attention color=0x00ffffff mode=0x00000000 submode=0x00000000
*/
#if 0
if (state->flashMode==2 && state->flashOnMS==7){
write_int(&leds[GREEN_LED].brightness, 0);
write_int(&leds[AMBER_LED].brightness, 1);
write_int(&leds[AMBER_LED].blink, 2);
} else {
write_int(&leds[AMBER_LED].brightness, 0);
write_int(&leds[GREEN_LED].brightness, 1);
write_int(&leds[GREEN_LED].blink, 4);
}
#endif
pthread_mutex_unlock(&g_lock);
return 0;
}
static int
set_light_flashlight(struct light_device_t* dev,
struct light_state_t const* state) {
LOGV("%s color=0x%08x mode=0x%08x submode=0x%08x",
__func__, state->color, state->flashMode, state->flashOnMS);
return 0;
}
static int
set_light_function(struct light_device_t* dev,
struct light_state_t const* state) {
LOGV("%s color=0x%08x mode=0x%08x submode=0x%08x",
__func__, state->color, state->flashMode, state->flashOnMS);
return 0;
}
/** Close the lights device */
static int
close_lights(struct light_device_t *dev)
{
int i;
for (i = 0; i < NUM_LEDS; ++i) {
close_prop(&leds[i].brightness);
close_prop(&leds[i].blink);
}
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);
LOGV("%s name=%s", __func__, name);
if (0 == strcmp(LIGHT_ID_BACKLIGHT, name)) {
set_light = set_light_backlight;
}
else if (0 == strcmp(LIGHT_ID_BUTTONS, name)) {
set_light = set_light_buttons;
start_events_thread();
}
else if (0 == strcmp(LIGHT_ID_BATTERY, name)) {
set_light = set_light_battery;
#ifdef ENABLE_BATTERY_POLL
start_battery_thread();
#endif
}
else if (0 == strcmp(LIGHT_ID_NOTIFICATIONS, name)) {
set_light = set_light_notifications;
}
else if (0 == strcmp(LIGHT_ID_ATTENTION, name)) {
set_light = set_light_attention;
}
else if (0 == strcmp(LIGHT_ID_FLASHLIGHT, name)) {
set_light = set_light_flashlight;
}
else if (0 == strcmp(LIGHT_ID_FUNC, name)) {
set_light = set_light_function;
}
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
*/
const struct hw_module_t HAL_MODULE_INFO_SYM = {
.tag = HARDWARE_MODULE_TAG,
.version_major = 1,
.version_minor = 0,
.id = LIGHTS_HARDWARE_MODULE_ID,
.name = "htcleo lights Module",
.author = "Google, Inc.",
.methods = &lights_module_methods,
};
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