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module/battery: estimate remaining time from charge+current

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Time remaining is now taken from 'time_to_empty_now' if available. If
not, use 'energy' + 'power' if available, and if those does not exist,
use 'charge' + 'current'.

If neither exists, hardcode to 99:00.
This commit is contained in:
Daniel Eklöf 2020-06-21 20:24:15 +02:00
parent ae871853ca
commit 19d91dbb44
No known key found for this signature in database
GPG key ID: 5BBD4992C116573F
1 changed files with 39 additions and 10 deletions
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49
modules/battery.c
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@ -13,6 +13,7 @@
#include <libudev.h> #include <libudev.h>
#define LOG_MODULE "battery" #define LOG_MODULE "battery"
#define LOG_ENABLE_DBG 0
#include "../log.h" #include "../log.h"
#include "../bar/bar.h" #include "../bar/bar.h"
#include "../config.h" #include "../config.h"
@ -37,6 +38,8 @@ struct private {
long capacity; long capacity;
long energy; long energy;
long power; long power;
long charge;
long current;
long time_to_empty; long time_to_empty;
}; };
@ -68,7 +71,10 @@ content(struct module *mod)
unsigned long hours; unsigned long hours;
unsigned long minutes; unsigned long minutes;
if (m->time_to_empty < 0) { if (m->time_to_empty >= 0) {
hours = m->time_to_empty / 60;
minutes = m->time_to_empty % 60;
} else if (m->energy_full >= 0 && m->charge && m->power >= 0) {
unsigned long energy = m->state == STATE_CHARGING unsigned long energy = m->state == STATE_CHARGING
? m->energy_full - m->energy : m->energy; ? m->energy_full - m->energy : m->energy;
@ -80,11 +86,25 @@ content(struct module *mod)
else else
hours_as_float = 99.0; hours_as_float = 99.0;
hours = hours_as_float;
minutes = (hours_as_float - (double)hours) * 60;
} else if (m->charge_full >= 0 && m->charge >= 0 && m->current >= 0) {
unsigned long charge = m->state == STATE_CHARGING
? m->charge_full - m->charge : m->charge;
double hours_as_float;
if (m->state == STATE_FULL)
hours_as_float = 0.0;
else if (m->current > 0)
hours_as_float = (double)charge / m->current;
else
hours_as_float = 99.0;
hours = hours_as_float; hours = hours_as_float;
minutes = (hours_as_float - (double)hours) * 60; minutes = (hours_as_float - (double)hours) * 60;
} else { } else {
hours = m->time_to_empty / 60; hours = 99;
minutes = m->time_to_empty % 60; minutes = 0;
} }
char estimate[64]; char estimate[64];
@ -257,13 +277,15 @@ err:
static void static void
update_status(struct module *mod, int capacity_fd, int energy_fd, int power_fd, update_status(struct module *mod, int capacity_fd, int energy_fd, int power_fd,
int status_fd, int time_to_empty_fd) int charge_fd, int current_fd, int status_fd, int time_to_empty_fd)
{ {
struct private *m = mod->private; struct private *m = mod->private;
long capacity = readint_from_fd(capacity_fd); long capacity = readint_from_fd(capacity_fd);
long energy = energy_fd >= 0 ? readint_from_fd(energy_fd) : -1; long energy = energy_fd >= 0 ? readint_from_fd(energy_fd) : -1;
long power = power_fd >= 0 ? readint_from_fd(power_fd) : -1; long power = power_fd >= 0 ? readint_from_fd(power_fd) : -1;
long charge = charge_fd >= 0 ? readint_from_fd(charge_fd) : -1;
long current = current_fd >= 0 ? readint_from_fd(current_fd) : -1;
long time_to_empty = time_to_empty_fd >= 0 ? readint_from_fd(time_to_empty_fd) : -1; long time_to_empty = time_to_empty_fd >= 0 ? readint_from_fd(time_to_empty_fd) : -1;
const char *status = readline_from_fd(status_fd); const char *status = readline_from_fd(status_fd);
@ -282,14 +304,17 @@ update_status(struct module *mod, int capacity_fd, int energy_fd, int power_fd,
state = STATE_DISCHARGING; state = STATE_DISCHARGING;
} }
LOG_DBG("capacity: %ld, energy: %ld, power: %ld, time-to-empty: %ld", LOG_DBG("capacity: %ld, energy: %ld, power: %ld, charge=%ld, current=%ld, "
capacity, energy, power, time_to_empty); "time-to-empty: %ld", capacity, energy, power, charge, current,
time_to_empty);
mtx_lock(&mod->lock); mtx_lock(&mod->lock);
m->state = state; m->state = state;
m->capacity = capacity; m->capacity = capacity;
m->energy = energy; m->energy = energy;
m->power = power; m->power = power;
m->charge = charge;
m->current = current;
m->time_to_empty = time_to_empty; m->time_to_empty = time_to_empty;
mtx_unlock(&mod->lock); mtx_unlock(&mod->lock);
} }
@ -317,6 +342,8 @@ run(struct module *mod)
int capacity_fd = openat(base_dir_fd, "capacity", O_RDONLY); int capacity_fd = openat(base_dir_fd, "capacity", O_RDONLY);
int energy_fd = openat(base_dir_fd, "energy_now", O_RDONLY); int energy_fd = openat(base_dir_fd, "energy_now", O_RDONLY);
int power_fd = openat(base_dir_fd, "power_now", O_RDONLY); int power_fd = openat(base_dir_fd, "power_now", O_RDONLY);
int charge_fd = openat(base_dir_fd, "charge_now", O_RDONLY);
int current_fd = openat(base_dir_fd, "current_now", O_RDONLY);
int time_to_empty_fd = openat(base_dir_fd, "time_to_empty_now", O_RDONLY); int time_to_empty_fd = openat(base_dir_fd, "time_to_empty_now", O_RDONLY);
struct udev *udev = udev_new(); struct udev *udev = udev_new();
@ -328,8 +355,9 @@ run(struct module *mod)
udev_monitor_filter_add_match_subsystem_devtype(mon, "power_supply", NULL); udev_monitor_filter_add_match_subsystem_devtype(mon, "power_supply", NULL);
udev_monitor_enable_receiving(mon); udev_monitor_enable_receiving(mon);
update_status(mod, capacity_fd, energy_fd, power_fd, status_fd, update_status(
time_to_empty_fd); mod, capacity_fd, energy_fd, power_fd,
charge_fd, current_fd, status_fd, time_to_empty_fd);
bar->refresh(bar); bar->refresh(bar);
while (true) { while (true) {
@ -355,8 +383,9 @@ run(struct module *mod)
continue; continue;
} }
update_status(mod, capacity_fd, energy_fd, power_fd, status_fd, update_status(
time_to_empty_fd); mod, capacity_fd, energy_fd, power_fd,
charge_fd, current_fd, status_fd, time_to_empty_fd);
bar->refresh(bar); bar->refresh(bar);
} }