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-rw-r--r--README2
-rw-r--r--components/battery.c34
2 files changed, 32 insertions, 4 deletions
diff --git a/README b/README
index 4cb8ca4..ec6a5a3 100644
--- a/README
+++ b/README
@@ -6,7 +6,7 @@ slstatus is a suckless status monitor for window managers that use WM_NAME
Features
--------
-- Battery percentage/state
+- Battery percentage/state/time left
- CPU usage
- CPU frequency
- Custom shell commands
diff --git a/components/battery.c b/components/battery.c
index b05c171..c7c402a 100644
--- a/components/battery.c
+++ b/components/battery.c
@@ -49,8 +49,36 @@
const char *
battery_remaining(const char *bat)
{
- /* TODO: Implement */
- return NULL;
+ int charge_now, current_now, m, h;
+ float timeleft;
+ char path[PATH_MAX], state[12];
+
+ snprintf(path, sizeof(path), "%s%s%s", "/sys/class/power_supply/",
+ bat, "/status");
+ if (pscanf(path, "%12s", state) != 1) {
+ return NULL;
+ }
+
+ if (!strcmp(state, "Discharging")) {
+ snprintf(path, sizeof(path), "%s%s%s", "/sys/class/power_supply/",
+ bat, "/charge_now");
+ if (pscanf(path, "%i", &charge_now) != 1) {
+ return NULL;
+ }
+ snprintf(path, sizeof(path), "%s%s%s", "/sys/class/power_supply/",
+ bat, "/current_now");
+ if (pscanf(path, "%i", &current_now) != 1) {
+ return NULL;
+ }
+
+ timeleft = (float)charge_now / (float)current_now;
+ h = timeleft;
+ m = (timeleft - (float)h) * 60;
+
+ return bprintf("%dh %dm", h, m);
+ }
+
+ return "";
}
#elif defined(__OpenBSD__)
#include <fcntl.h>
@@ -122,7 +150,7 @@
if (load_apm_power_info(&apm_info)) {
if (apm_info.ac_state != APM_AC_ON) {
- return bprintf("%u:%02u", apm_info.minutes_left / 60,
+ return bprintf("%uh %02um", apm_info.minutes_left / 60,
apm_info.minutes_left % 60);
} else {
return "";