992 lines
25 KiB
C
992 lines
25 KiB
C
/*
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* Copyright (C) 2011 The Android Open Source Project
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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//#define DEBUG_UEVENTS
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#define CHARGER_KLOG_LEVEL 6
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#include <dirent.h>
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#include <errno.h>
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#include <fcntl.h>
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#include <linux/input.h>
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#include <stdbool.h>
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#include <stdio.h>
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#include <stdlib.h>
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#include <string.h>
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#include <sys/poll.h>
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#include <sys/stat.h>
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#include <sys/types.h>
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#include <sys/un.h>
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#include <time.h>
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#include <unistd.h>
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#include <sys/socket.h>
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#include <linux/netlink.h>
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#include <cutils/android_reboot.h>
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#include <cutils/klog.h>
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#include <cutils/list.h>
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#include <cutils/misc.h>
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#include <cutils/uevent.h>
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#include "minui/minui.h"
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#ifndef max
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#define max(a,b) ((a) > (b) ? (a) : (b))
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#endif
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#ifndef min
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#define min(a,b) ((a) < (b) ? (a) : (b))
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#endif
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#define ARRAY_SIZE(x) (sizeof(x)/sizeof(x[0]))
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#define MSEC_PER_SEC (1000LL)
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#define NSEC_PER_MSEC (1000000LL)
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#define BATTERY_UNKNOWN_TIME (2 * MSEC_PER_SEC)
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#define POWER_ON_KEY_TIME (2 * MSEC_PER_SEC)
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#define UNPLUGGED_SHUTDOWN_TIME (10 * MSEC_PER_SEC)
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#define BATTERY_FULL_THRESH 95
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#define LAST_KMSG_PATH "/proc/last_kmsg"
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#define LAST_KMSG_MAX_SZ (32 * 1024)
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#define LOGE(x...) do { KLOG_ERROR("charger", x); } while (0)
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#define LOGI(x...) do { KLOG_INFO("charger", x); } while (0)
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#define LOGV(x...) do { KLOG_DEBUG("charger", x); } while (0)
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struct key_state {
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bool pending;
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bool down;
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int64_t timestamp;
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};
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struct power_supply {
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struct listnode list;
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char name[256];
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char type[32];
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bool online;
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bool valid;
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char cap_path[PATH_MAX];
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};
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struct frame {
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const char *name;
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int disp_time;
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int min_capacity;
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bool level_only;
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gr_surface surface;
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};
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struct animation {
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bool run;
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struct frame *frames;
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int cur_frame;
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int num_frames;
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int cur_cycle;
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int num_cycles;
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/* current capacity being animated */
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int capacity;
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};
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struct charger {
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int64_t next_screen_transition;
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int64_t next_key_check;
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int64_t next_pwr_check;
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struct key_state keys[KEY_MAX + 1];
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int uevent_fd;
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struct listnode supplies;
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int num_supplies;
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int num_supplies_online;
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struct animation *batt_anim;
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gr_surface surf_unknown;
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struct power_supply *battery;
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};
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struct uevent {
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const char *action;
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const char *path;
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const char *subsystem;
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const char *ps_name;
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const char *ps_type;
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const char *ps_online;
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};
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static struct frame batt_anim_frames[] = {
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{
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.name = "charger/battery_0",
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.disp_time = 750,
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.min_capacity = 0,
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},
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{
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.name = "charger/battery_1",
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.disp_time = 750,
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.min_capacity = 20,
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},
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{
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.name = "charger/battery_2",
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.disp_time = 750,
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.min_capacity = 40,
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},
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{
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.name = "charger/battery_3",
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.disp_time = 750,
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.min_capacity = 60,
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},
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{
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.name = "charger/battery_4",
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.disp_time = 750,
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.min_capacity = 80,
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.level_only = true,
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},
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{
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.name = "charger/battery_5",
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.disp_time = 750,
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.min_capacity = BATTERY_FULL_THRESH,
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},
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};
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static struct animation battery_animation = {
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.frames = batt_anim_frames,
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.num_frames = ARRAY_SIZE(batt_anim_frames),
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.num_cycles = 3,
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};
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static struct charger charger_state = {
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.batt_anim = &battery_animation,
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};
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static int char_width;
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static int char_height;
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/* current time in milliseconds */
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static int64_t curr_time_ms(void)
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{
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struct timespec tm;
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clock_gettime(CLOCK_MONOTONIC, &tm);
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return tm.tv_sec * MSEC_PER_SEC + (tm.tv_nsec / NSEC_PER_MSEC);
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}
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static void clear_screen(void)
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{
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gr_color(0, 0, 0, 255);
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gr_fill(0, 0, gr_fb_width(), gr_fb_height());
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};
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#define MAX_KLOG_WRITE_BUF_SZ 256
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static void dump_last_kmsg(void)
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{
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char *buf;
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char *ptr;
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unsigned sz = 0;
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int len;
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LOGI("\n");
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LOGI("*************** LAST KMSG ***************\n");
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LOGI("\n");
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buf = load_file(LAST_KMSG_PATH, &sz);
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if (!buf || !sz) {
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LOGI("last_kmsg not found. Cold reset?\n");
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goto out;
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}
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len = min(sz, LAST_KMSG_MAX_SZ);
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ptr = buf + (sz - len);
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while (len > 0) {
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int cnt = min(len, MAX_KLOG_WRITE_BUF_SZ);
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char yoink;
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char *nl;
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nl = memrchr(ptr, '\n', cnt - 1);
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if (nl)
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cnt = nl - ptr + 1;
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yoink = ptr[cnt];
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ptr[cnt] = '\0';
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klog_write(6, "<6>%s", ptr);
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ptr[cnt] = yoink;
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len -= cnt;
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ptr += cnt;
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}
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free(buf);
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out:
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LOGI("\n");
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LOGI("************* END LAST KMSG *************\n");
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LOGI("\n");
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}
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static int read_file(const char *path, char *buf, size_t sz)
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{
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int fd;
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size_t cnt;
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fd = open(path, O_RDONLY, 0);
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if (fd < 0)
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goto err;
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cnt = read(fd, buf, sz - 1);
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if (cnt <= 0)
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goto err;
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buf[cnt] = '\0';
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if (buf[cnt - 1] == '\n') {
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cnt--;
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buf[cnt] = '\0';
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}
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close(fd);
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return cnt;
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err:
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if (fd >= 0)
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close(fd);
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return -1;
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}
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static int read_file_int(const char *path, int *val)
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{
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char buf[32];
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int ret;
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int tmp;
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char *end;
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ret = read_file(path, buf, sizeof(buf));
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if (ret < 0)
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return -1;
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tmp = strtol(buf, &end, 0);
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if (end == buf ||
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((end < buf+sizeof(buf)) && (*end != '\n' && *end != '\0')))
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goto err;
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*val = tmp;
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return 0;
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err:
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return -1;
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}
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static int get_battery_capacity(struct charger *charger)
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{
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int ret;
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int batt_cap = -1;
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if (!charger->battery)
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return -1;
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ret = read_file_int(charger->battery->cap_path, &batt_cap);
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if (ret < 0 || batt_cap > 100) {
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batt_cap = -1;
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}
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return batt_cap;
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}
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static struct power_supply *find_supply(struct charger *charger,
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const char *name)
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{
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struct listnode *node;
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struct power_supply *supply;
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list_for_each(node, &charger->supplies) {
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supply = node_to_item(node, struct power_supply, list);
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if (!strncmp(name, supply->name, sizeof(supply->name)))
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return supply;
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}
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return NULL;
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}
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static struct power_supply *add_supply(struct charger *charger,
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const char *name, const char *type,
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const char *path, bool online)
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{
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struct power_supply *supply;
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supply = calloc(1, sizeof(struct power_supply));
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if (!supply)
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return NULL;
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strlcpy(supply->name, name, sizeof(supply->name));
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strlcpy(supply->type, type, sizeof(supply->type));
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snprintf(supply->cap_path, sizeof(supply->cap_path),
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"/sys/%s/capacity", path);
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supply->online = online;
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list_add_tail(&charger->supplies, &supply->list);
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charger->num_supplies++;
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LOGV("... added %s %s %d\n", supply->name, supply->type, online);
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return supply;
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}
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static void remove_supply(struct charger *charger, struct power_supply *supply)
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{
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if (!supply)
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return;
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list_remove(&supply->list);
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charger->num_supplies--;
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free(supply);
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}
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static void parse_uevent(const char *msg, struct uevent *uevent)
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{
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uevent->action = "";
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uevent->path = "";
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uevent->subsystem = "";
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uevent->ps_name = "";
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uevent->ps_online = "";
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uevent->ps_type = "";
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/* currently ignoring SEQNUM */
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while (*msg) {
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#ifdef DEBUG_UEVENTS
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LOGV("uevent str: %s\n", msg);
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#endif
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if (!strncmp(msg, "ACTION=", 7)) {
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msg += 7;
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uevent->action = msg;
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} else if (!strncmp(msg, "DEVPATH=", 8)) {
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msg += 8;
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uevent->path = msg;
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} else if (!strncmp(msg, "SUBSYSTEM=", 10)) {
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msg += 10;
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uevent->subsystem = msg;
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} else if (!strncmp(msg, "POWER_SUPPLY_NAME=", 18)) {
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msg += 18;
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uevent->ps_name = msg;
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} else if (!strncmp(msg, "POWER_SUPPLY_ONLINE=", 20)) {
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msg += 20;
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uevent->ps_online = msg;
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} else if (!strncmp(msg, "POWER_SUPPLY_TYPE=", 18)) {
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msg += 18;
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uevent->ps_type = msg;
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}
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/* advance to after the next \0 */
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while (*msg++)
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;
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}
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LOGV("event { '%s', '%s', '%s', '%s', '%s', '%s' }\n",
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uevent->action, uevent->path, uevent->subsystem,
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uevent->ps_name, uevent->ps_type, uevent->ps_online);
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}
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static void process_ps_uevent(struct charger *charger, struct uevent *uevent)
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{
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int online;
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char ps_type[32];
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struct power_supply *supply = NULL;
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int i;
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bool was_online = false;
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bool battery = false;
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if (uevent->ps_type[0] == '\0') {
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char *path;
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int ret;
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if (uevent->path[0] == '\0')
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return;
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ret = asprintf(&path, "/sys/%s/type", uevent->path);
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if (ret <= 0)
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return;
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ret = read_file(path, ps_type, sizeof(ps_type));
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free(path);
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if (ret < 0)
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return;
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} else {
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strlcpy(ps_type, uevent->ps_type, sizeof(ps_type));
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}
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if (!strncmp(ps_type, "Battery", 7))
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battery = true;
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online = atoi(uevent->ps_online);
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supply = find_supply(charger, uevent->ps_name);
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if (supply) {
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was_online = supply->online;
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supply->online = online;
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}
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if (!strcmp(uevent->action, "add")) {
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if (!supply) {
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supply = add_supply(charger, uevent->ps_name, ps_type, uevent->path,
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online);
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if (!supply) {
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LOGE("cannot add supply '%s' (%s %d)\n", uevent->ps_name,
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uevent->ps_type, online);
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return;
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}
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/* only pick up the first battery for now */
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if (battery && !charger->battery)
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charger->battery = supply;
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} else {
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LOGE("supply '%s' already exists..\n", uevent->ps_name);
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}
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} else if (!strcmp(uevent->action, "remove")) {
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if (supply) {
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if (charger->battery == supply)
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charger->battery = NULL;
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remove_supply(charger, supply);
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supply = NULL;
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}
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} else if (!strcmp(uevent->action, "change")) {
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if (!supply) {
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LOGE("power supply '%s' not found ('%s' %d)\n",
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uevent->ps_name, ps_type, online);
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return;
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}
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} else {
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return;
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}
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/* allow battery to be managed in the supply list but make it not
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* contribute to online power supplies. */
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if (!battery) {
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if (was_online && !online)
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charger->num_supplies_online--;
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else if (supply && !was_online && online)
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charger->num_supplies_online++;
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}
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LOGI("power supply %s (%s) %s (action=%s num_online=%d num_supplies=%d)\n",
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uevent->ps_name, ps_type, battery ? "" : online ? "online" : "offline",
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uevent->action, charger->num_supplies_online, charger->num_supplies);
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}
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static void process_uevent(struct charger *charger, struct uevent *uevent)
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{
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if (!strcmp(uevent->subsystem, "power_supply"))
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process_ps_uevent(charger, uevent);
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}
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#define UEVENT_MSG_LEN 1024
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static int handle_uevent_fd(struct charger *charger, int fd)
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{
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char msg[UEVENT_MSG_LEN+2];
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int n;
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if (fd < 0)
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return -1;
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while (true) {
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struct uevent uevent;
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n = uevent_kernel_multicast_recv(fd, msg, UEVENT_MSG_LEN);
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if (n <= 0)
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break;
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if (n >= UEVENT_MSG_LEN) /* overflow -- discard */
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continue;
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msg[n] = '\0';
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msg[n+1] = '\0';
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parse_uevent(msg, &uevent);
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process_uevent(charger, &uevent);
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}
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return 0;
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}
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static int uevent_callback(int fd, short revents, void *data)
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{
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struct charger *charger = data;
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if (!(revents & POLLIN))
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return -1;
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return handle_uevent_fd(charger, fd);
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}
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/* force the kernel to regenerate the change events for the existing
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* devices, if valid */
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static void do_coldboot(struct charger *charger, DIR *d, const char *event,
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bool follow_links, int max_depth)
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{
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struct dirent *de;
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int dfd, fd;
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dfd = dirfd(d);
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fd = openat(dfd, "uevent", O_WRONLY);
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if (fd >= 0) {
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write(fd, event, strlen(event));
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close(fd);
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handle_uevent_fd(charger, charger->uevent_fd);
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}
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while ((de = readdir(d)) && max_depth > 0) {
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DIR *d2;
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LOGV("looking at '%s'\n", de->d_name);
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if ((de->d_type != DT_DIR && !(de->d_type == DT_LNK && follow_links)) ||
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de->d_name[0] == '.') {
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LOGV("skipping '%s' type %d (depth=%d follow=%d)\n",
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de->d_name, de->d_type, max_depth, follow_links);
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continue;
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}
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LOGV("can descend into '%s'\n", de->d_name);
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fd = openat(dfd, de->d_name, O_RDONLY | O_DIRECTORY);
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if (fd < 0) {
|
|
LOGE("cannot openat %d '%s' (%d: %s)\n", dfd, de->d_name,
|
|
errno, strerror(errno));
|
|
continue;
|
|
}
|
|
|
|
d2 = fdopendir(fd);
|
|
if (d2 == 0)
|
|
close(fd);
|
|
else {
|
|
LOGV("opened '%s'\n", de->d_name);
|
|
do_coldboot(charger, d2, event, follow_links, max_depth - 1);
|
|
closedir(d2);
|
|
}
|
|
}
|
|
}
|
|
|
|
static void coldboot(struct charger *charger, const char *path,
|
|
const char *event)
|
|
{
|
|
char str[256];
|
|
|
|
LOGV("doing coldboot '%s' in '%s'\n", event, path);
|
|
DIR *d = opendir(path);
|
|
if (d) {
|
|
snprintf(str, sizeof(str), "%s\n", event);
|
|
do_coldboot(charger, d, str, true, 1);
|
|
closedir(d);
|
|
}
|
|
}
|
|
|
|
static int draw_text(const char *str, int x, int y)
|
|
{
|
|
int str_len_px = gr_measure(str);
|
|
|
|
if (x < 0)
|
|
x = (gr_fb_width() - str_len_px) / 2;
|
|
if (y < 0)
|
|
y = (gr_fb_height() - char_height) / 2;
|
|
gr_text(x, y, str);
|
|
|
|
return y + char_height;
|
|
}
|
|
|
|
static void android_green(void)
|
|
{
|
|
gr_color(0xa4, 0xc6, 0x39, 255);
|
|
}
|
|
|
|
/* returns the last y-offset of where the surface ends */
|
|
static int draw_surface_centered(struct charger *charger, gr_surface surface)
|
|
{
|
|
int w;
|
|
int h;
|
|
int x;
|
|
int y;
|
|
|
|
w = gr_get_width(surface);
|
|
h = gr_get_height(surface);
|
|
x = (gr_fb_width() - w) / 2 ;
|
|
y = (gr_fb_height() - h) / 2 ;
|
|
|
|
LOGV("drawing surface %dx%d+%d+%d\n", w, h, x, y);
|
|
gr_blit(surface, 0, 0, w, h, x, y);
|
|
return y + h;
|
|
}
|
|
|
|
static void draw_unknown(struct charger *charger)
|
|
{
|
|
int y;
|
|
if (charger->surf_unknown) {
|
|
draw_surface_centered(charger, charger->surf_unknown);
|
|
} else {
|
|
android_green();
|
|
y = draw_text("Charging!", -1, -1);
|
|
draw_text("?\?/100", -1, y + 25);
|
|
}
|
|
}
|
|
|
|
static void draw_battery(struct charger *charger)
|
|
{
|
|
struct animation *batt_anim = charger->batt_anim;
|
|
struct frame *frame = &batt_anim->frames[batt_anim->cur_frame];
|
|
|
|
if (batt_anim->num_frames != 0) {
|
|
draw_surface_centered(charger, frame->surface);
|
|
LOGV("drawing frame #%d name=%s min_cap=%d time=%d\n",
|
|
batt_anim->cur_frame, frame->name, frame->min_capacity,
|
|
frame->disp_time);
|
|
}
|
|
}
|
|
|
|
static void redraw_screen(struct charger *charger)
|
|
{
|
|
struct animation *batt_anim = charger->batt_anim;
|
|
|
|
clear_screen();
|
|
|
|
/* try to display *something* */
|
|
if (batt_anim->capacity < 0 || batt_anim->num_frames == 0)
|
|
draw_unknown(charger);
|
|
else
|
|
draw_battery(charger);
|
|
gr_flip();
|
|
}
|
|
|
|
static void kick_animation(struct animation *anim)
|
|
{
|
|
anim->run = true;
|
|
}
|
|
|
|
static void reset_animation(struct animation *anim)
|
|
{
|
|
anim->cur_cycle = 0;
|
|
anim->cur_frame = 0;
|
|
anim->run = false;
|
|
}
|
|
|
|
static void update_screen_state(struct charger *charger, int64_t now)
|
|
{
|
|
struct animation *batt_anim = charger->batt_anim;
|
|
int cur_frame;
|
|
int disp_time;
|
|
|
|
if (!batt_anim->run || now < charger->next_screen_transition)
|
|
return;
|
|
|
|
/* animation is over, blank screen and leave */
|
|
if (batt_anim->cur_cycle == batt_anim->num_cycles) {
|
|
reset_animation(batt_anim);
|
|
charger->next_screen_transition = -1;
|
|
gr_fb_blank(true);
|
|
LOGV("[%lld] animation done\n", now);
|
|
return;
|
|
}
|
|
|
|
disp_time = batt_anim->frames[batt_anim->cur_frame].disp_time;
|
|
|
|
/* animation starting, set up the animation */
|
|
if (batt_anim->cur_frame == 0) {
|
|
int batt_cap;
|
|
int ret;
|
|
|
|
LOGV("[%lld] animation starting\n", now);
|
|
batt_cap = get_battery_capacity(charger);
|
|
if (batt_cap >= 0 && batt_anim->num_frames != 0) {
|
|
int i;
|
|
|
|
/* find first frame given current capacity */
|
|
for (i = 1; i < batt_anim->num_frames; i++) {
|
|
if (batt_cap < batt_anim->frames[i].min_capacity)
|
|
break;
|
|
}
|
|
batt_anim->cur_frame = i - 1;
|
|
|
|
/* show the first frame for twice as long */
|
|
disp_time = batt_anim->frames[batt_anim->cur_frame].disp_time * 2;
|
|
}
|
|
|
|
batt_anim->capacity = batt_cap;
|
|
}
|
|
|
|
/* unblank the screen on first cycle */
|
|
if (batt_anim->cur_cycle == 0)
|
|
gr_fb_blank(false);
|
|
|
|
/* draw the new frame (@ cur_frame) */
|
|
redraw_screen(charger);
|
|
|
|
/* if we don't have anim frames, we only have one image, so just bump
|
|
* the cycle counter and exit
|
|
*/
|
|
if (batt_anim->num_frames == 0 || batt_anim->capacity < 0) {
|
|
LOGV("[%lld] animation missing or unknown battery status\n", now);
|
|
charger->next_screen_transition = now + BATTERY_UNKNOWN_TIME;
|
|
batt_anim->cur_cycle++;
|
|
return;
|
|
}
|
|
|
|
/* schedule next screen transition */
|
|
charger->next_screen_transition = now + disp_time;
|
|
|
|
/* advance frame cntr to the next valid frame
|
|
* if necessary, advance cycle cntr, and reset frame cntr
|
|
*/
|
|
batt_anim->cur_frame++;
|
|
|
|
/* if the frame is used for level-only, that is only show it when it's
|
|
* the current level, skip it during the animation.
|
|
*/
|
|
while (batt_anim->cur_frame < batt_anim->num_frames &&
|
|
batt_anim->frames[batt_anim->cur_frame].level_only)
|
|
batt_anim->cur_frame++;
|
|
if (batt_anim->cur_frame >= batt_anim->num_frames) {
|
|
batt_anim->cur_cycle++;
|
|
batt_anim->cur_frame = 0;
|
|
|
|
/* don't reset the cycle counter, since we use that as a signal
|
|
* in a test above to check if animation is over
|
|
*/
|
|
}
|
|
}
|
|
|
|
static int set_key_callback(int code, int value, void *data)
|
|
{
|
|
struct charger *charger = data;
|
|
int64_t now = curr_time_ms();
|
|
int down = !!value;
|
|
|
|
if (code > KEY_MAX)
|
|
return -1;
|
|
|
|
/* ignore events that don't modify our state */
|
|
if (charger->keys[code].down == down)
|
|
return 0;
|
|
|
|
/* only record the down even timestamp, as the amount
|
|
* of time the key spent not being pressed is not useful */
|
|
if (down)
|
|
charger->keys[code].timestamp = now;
|
|
charger->keys[code].down = down;
|
|
charger->keys[code].pending = true;
|
|
if (down) {
|
|
LOGV("[%lld] key[%d] down\n", now, code);
|
|
} else {
|
|
int64_t duration = now - charger->keys[code].timestamp;
|
|
int64_t secs = duration / 1000;
|
|
int64_t msecs = duration - secs * 1000;
|
|
LOGV("[%lld] key[%d] up (was down for %lld.%lldsec)\n", now,
|
|
code, secs, msecs);
|
|
}
|
|
|
|
return 0;
|
|
}
|
|
|
|
static void update_input_state(struct charger *charger,
|
|
struct input_event *ev)
|
|
{
|
|
if (ev->type != EV_KEY)
|
|
return;
|
|
set_key_callback(ev->code, ev->value, charger);
|
|
}
|
|
|
|
static void set_next_key_check(struct charger *charger,
|
|
struct key_state *key,
|
|
int64_t timeout)
|
|
{
|
|
int64_t then = key->timestamp + timeout;
|
|
|
|
if (charger->next_key_check == -1 || then < charger->next_key_check)
|
|
charger->next_key_check = then;
|
|
}
|
|
|
|
static void process_key(struct charger *charger, int code, int64_t now)
|
|
{
|
|
struct key_state *key = &charger->keys[code];
|
|
int64_t next_key_check;
|
|
|
|
if (code == KEY_POWER) {
|
|
if (key->down) {
|
|
int64_t reboot_timeout = key->timestamp + POWER_ON_KEY_TIME;
|
|
if (now >= reboot_timeout) {
|
|
LOGI("[%lld] rebooting\n", now);
|
|
android_reboot(ANDROID_RB_RESTART, 0, 0);
|
|
} else {
|
|
/* if the key is pressed but timeout hasn't expired,
|
|
* make sure we wake up at the right-ish time to check
|
|
*/
|
|
set_next_key_check(charger, key, POWER_ON_KEY_TIME);
|
|
}
|
|
} else {
|
|
/* if the power key got released, force screen state cycle */
|
|
if (key->pending)
|
|
kick_animation(charger->batt_anim);
|
|
}
|
|
}
|
|
|
|
key->pending = false;
|
|
}
|
|
|
|
static void handle_input_state(struct charger *charger, int64_t now)
|
|
{
|
|
process_key(charger, KEY_POWER, now);
|
|
|
|
if (charger->next_key_check != -1 && now > charger->next_key_check)
|
|
charger->next_key_check = -1;
|
|
}
|
|
|
|
static void handle_power_supply_state(struct charger *charger, int64_t now)
|
|
{
|
|
if (charger->num_supplies_online == 0) {
|
|
if (charger->next_pwr_check == -1) {
|
|
charger->next_pwr_check = now + UNPLUGGED_SHUTDOWN_TIME;
|
|
LOGI("[%lld] device unplugged: shutting down in %lld (@ %lld)\n",
|
|
now, UNPLUGGED_SHUTDOWN_TIME, charger->next_pwr_check);
|
|
} else if (now >= charger->next_pwr_check) {
|
|
LOGI("[%lld] shutting down\n", now);
|
|
android_reboot(ANDROID_RB_POWEROFF, 0, 0);
|
|
} else {
|
|
/* otherwise we already have a shutdown timer scheduled */
|
|
}
|
|
} else {
|
|
/* online supply present, reset shutdown timer if set */
|
|
if (charger->next_pwr_check != -1) {
|
|
LOGI("[%lld] device plugged in: shutdown cancelled\n", now);
|
|
kick_animation(charger->batt_anim);
|
|
}
|
|
charger->next_pwr_check = -1;
|
|
}
|
|
}
|
|
|
|
static void wait_next_event(struct charger *charger, int64_t now)
|
|
{
|
|
int64_t next_event = INT64_MAX;
|
|
int64_t timeout;
|
|
struct input_event ev;
|
|
int ret;
|
|
|
|
LOGV("[%lld] next screen: %lld next key: %lld next pwr: %lld\n", now,
|
|
charger->next_screen_transition, charger->next_key_check,
|
|
charger->next_pwr_check);
|
|
|
|
if (charger->next_screen_transition != -1)
|
|
next_event = charger->next_screen_transition;
|
|
if (charger->next_key_check != -1 && charger->next_key_check < next_event)
|
|
next_event = charger->next_key_check;
|
|
if (charger->next_pwr_check != -1 && charger->next_pwr_check < next_event)
|
|
next_event = charger->next_pwr_check;
|
|
|
|
if (next_event != -1 && next_event != INT64_MAX)
|
|
timeout = max(0, next_event - now);
|
|
else
|
|
timeout = -1;
|
|
LOGV("[%lld] blocking (%lld)\n", now, timeout);
|
|
ret = ev_wait((int)timeout);
|
|
if (!ret)
|
|
ev_dispatch();
|
|
}
|
|
|
|
static int input_callback(int fd, short revents, void *data)
|
|
{
|
|
struct charger *charger = data;
|
|
struct input_event ev;
|
|
int ret;
|
|
|
|
ret = ev_get_input(fd, revents, &ev);
|
|
if (ret)
|
|
return -1;
|
|
update_input_state(charger, &ev);
|
|
return 0;
|
|
}
|
|
|
|
static void event_loop(struct charger *charger)
|
|
{
|
|
int ret;
|
|
|
|
while (true) {
|
|
int64_t now = curr_time_ms();
|
|
|
|
LOGV("[%lld] event_loop()\n", now);
|
|
handle_input_state(charger, now);
|
|
handle_power_supply_state(charger, now);
|
|
|
|
/* do screen update last in case any of the above want to start
|
|
* screen transitions (animations, etc)
|
|
*/
|
|
update_screen_state(charger, now);
|
|
|
|
wait_next_event(charger, now);
|
|
}
|
|
}
|
|
|
|
int main(int argc, char **argv)
|
|
{
|
|
int ret;
|
|
struct charger *charger = &charger_state;
|
|
int64_t now = curr_time_ms() - 1;
|
|
int fd;
|
|
int i;
|
|
|
|
list_init(&charger->supplies);
|
|
|
|
klog_init();
|
|
klog_set_level(CHARGER_KLOG_LEVEL);
|
|
|
|
dump_last_kmsg();
|
|
|
|
LOGI("--------------- STARTING CHARGER MODE ---------------\n");
|
|
|
|
gr_init();
|
|
gr_font_size(&char_width, &char_height);
|
|
|
|
ev_init(input_callback, charger);
|
|
|
|
fd = uevent_open_socket(64*1024, true);
|
|
if (fd >= 0) {
|
|
fcntl(fd, F_SETFL, O_NONBLOCK);
|
|
ev_add_fd(fd, uevent_callback, charger);
|
|
}
|
|
charger->uevent_fd = fd;
|
|
coldboot(charger, "/sys/class/power_supply", "add");
|
|
|
|
ret = res_create_surface("charger/battery_fail", &charger->surf_unknown);
|
|
if (ret < 0) {
|
|
LOGE("Cannot load image\n");
|
|
charger->surf_unknown = NULL;
|
|
}
|
|
|
|
for (i = 0; i < charger->batt_anim->num_frames; i++) {
|
|
struct frame *frame = &charger->batt_anim->frames[i];
|
|
|
|
ret = res_create_surface(frame->name, &frame->surface);
|
|
if (ret < 0) {
|
|
LOGE("Cannot load image %s\n", frame->name);
|
|
/* TODO: free the already allocated surfaces... */
|
|
charger->batt_anim->num_frames = 0;
|
|
charger->batt_anim->num_cycles = 1;
|
|
break;
|
|
}
|
|
}
|
|
|
|
ev_sync_key_state(set_key_callback, charger);
|
|
|
|
#ifndef CHARGER_DISABLE_INIT_BLANK
|
|
gr_fb_blank(true);
|
|
#endif
|
|
|
|
charger->next_screen_transition = now - 1;
|
|
charger->next_key_check = -1;
|
|
charger->next_pwr_check = -1;
|
|
reset_animation(charger->batt_anim);
|
|
kick_animation(charger->batt_anim);
|
|
|
|
event_loop(charger);
|
|
|
|
return 0;
|
|
}
|