X-Git-Url: https://git.xinqibao.xyz/slstatus.git/blobdiff_plain/fc8b6f81a54810faa844ea21d08ef47f95b8f4e0..a1ac203d16c379d7fc05765545af2977a7a3584d:/components/battery.c
diff --git a/components/battery.c b/components/battery.c
index 4c6b4f5..07b6ac1 100644
--- a/components/battery.c
+++ b/components/battery.c
@@ -1,5 +1,4 @@
/* See LICENSE file for copyright and license details. */
-#include <errno.h>
#include <stdio.h>
#include <string.h>
@@ -7,6 +6,25 @@
#if defined(__linux__)
#include <limits.h>
+ #include <stdint.h>
+ #include <unistd.h>
+
+ static const char *
+ pick(const char *bat, const char *f1, const char *f2, char *path,
+ size_t length)
+ {
+ if (esnprintf(path, length, f1, bat) > 0 &&
+ access(path, R_OK) == 0) {
+ return f1;
+ }
+
+ if (esnprintf(path, length, f2, bat) > 0 &&
+ access(path, R_OK) == 0) {
+ return f2;
+ }
+
+ return NULL;
+ }
const char *
battery_perc(const char *bat)
@@ -14,15 +32,21 @@
int perc;
char path[PATH_MAX];
- snprintf(path, sizeof(path), "%s%s%s", "/sys/class/power_supply/",
- bat, "/capacity");
- return (pscanf(path, "%i", &perc) == 1) ? bprintf("%d", perc) : NULL;
+ if (esnprintf(path, sizeof(path),
+ "/sys/class/power_supply/%s/capacity", bat) < 0) {
+ return NULL;
+ }
+ if (pscanf(path, "%d", &perc) != 1) {
+ return NULL;
+ }
+
+ return bprintf("%d", perc);
}
const char *
battery_state(const char *bat)
{
- struct {
+ static struct {
char *state;
char *symbol;
} map[] = {
@@ -32,8 +56,10 @@
size_t i;
char path[PATH_MAX], state[12];
- snprintf(path, sizeof(path), "%s%s%s", "/sys/class/power_supply/",
- bat, "/status");
+ if (esnprintf(path, sizeof(path),
+ "/sys/class/power_supply/%s/status", bat) < 0) {
+ return NULL;
+ }
if (pscanf(path, "%12s", state) != 1) {
return NULL;
}
@@ -45,43 +71,91 @@
}
return (i == LEN(map)) ? "?" : map[i].symbol;
}
+
+ const char *
+ battery_remaining(const char *bat)
+ {
+ uintmax_t charge_now, current_now, m, h;
+ double timeleft;
+ char path[PATH_MAX], state[12];
+
+ if (esnprintf(path, sizeof(path),
+ "/sys/class/power_supply/%s/status", bat) < 0) {
+ return NULL;
+ }
+ if (pscanf(path, "%12s", state) != 1) {
+ return NULL;
+ }
+
+ if (!pick(bat, "/sys/class/power_supply/%s/charge_now",
+ "/sys/class/power_supply/%s/energy_now", path,
+ sizeof(path)) ||
+ pscanf(path, "%ju", &charge_now) < 0) {
+ return NULL;
+ }
+
+ if (!strcmp(state, "Discharging")) {
+ if (!pick(bat, "/sys/class/power_supply/%s/current_now",
+ "/sys/class/power_supply/%s/power_now", path,
+ sizeof(path)) ||
+ pscanf(path, "%ju", ¤t_now) < 0) {
+ return NULL;
+ }
+
+ if (current_now == 0) {
+ return NULL;
+ }
+
+ timeleft = (double)charge_now / (double)current_now;
+ h = timeleft;
+ m = (timeleft - (double)h) * 60;
+
+ return bprintf("%juh %jum", h, m);
+ }
+
+ return "";
+ }
#elif defined(__OpenBSD__)
#include <fcntl.h>
#include <machine/apmvar.h>
#include <sys/ioctl.h>
#include <unistd.h>
- const char *
- battery_perc(const char *bat)
+ static int
+ load_apm_power_info(struct apm_power_info *apm_info)
{
- struct apm_power_info apm_info;
int fd;
- UNUSED(bat); /* no way to specify battery on OpenBSD */
-
fd = open("/dev/apm", O_RDONLY);
if (fd < 0) {
- fprintf(stderr, "open '/dev/apm': %s\n", strerror(errno));
- return NULL;
+ warn("open '/dev/apm':");
+ return 0;
}
- if (ioctl(fd, APM_IOC_GETPOWER, &apm_info) < 0) {
- fprintf(stderr, "ioctl 'APM_IOC_GETPOWER': %s\n",
- strerror(errno));
+ memset(apm_info, 0, sizeof(struct apm_power_info));
+ if (ioctl(fd, APM_IOC_GETPOWER, apm_info) < 0) {
+ warn("ioctl 'APM_IOC_GETPOWER':");
close(fd);
- return NULL;
+ return 0;
}
- close(fd);
-
- return bprintf("%d", apm_info.battery_life);
+ return close(fd), 1;
}
const char *
- battery_state(const char *bat)
+ battery_perc(const char *unused)
{
- int fd;
- size_t i;
struct apm_power_info apm_info;
+
+ if (load_apm_power_info(&apm_info)) {
+ return bprintf("%d", apm_info.battery_life);
+ }
+
+ return NULL;
+ }
+
+ const char *
+ battery_state(const char *unused)
+ {
struct {
unsigned int state;
char *symbol;
@@ -89,28 +163,89 @@
{ APM_AC_ON, "+" },
{ APM_AC_OFF, "-" },
};
+ struct apm_power_info apm_info;
+ size_t i;
+
+ if (load_apm_power_info(&apm_info)) {
+ for (i = 0; i < LEN(map); i++) {
+ if (map[i].state == apm_info.ac_state) {
+ break;
+ }
+ }
+ return (i == LEN(map)) ? "?" : map[i].symbol;
+ }
- UNUSED(bat); /* no way to specify battery on OpenBSD */
+ return NULL;
+ }
- fd = open("/dev/apm", O_RDONLY);
- if (fd < 0) {
- fprintf(stderr, "open '/dev/apm': %s\n", strerror(errno));
- return NULL;
+ const char *
+ battery_remaining(const char *unused)
+ {
+ struct apm_power_info apm_info;
+
+ if (load_apm_power_info(&apm_info)) {
+ if (apm_info.ac_state != APM_AC_ON) {
+ return bprintf("%uh %02um",
+ apm_info.minutes_left / 60,
+ apm_info.minutes_left % 60);
+ } else {
+ return "";
+ }
}
- if (ioctl(fd, APM_IOC_GETPOWER, &apm_info) < 0) {
- fprintf(stderr, "ioctl 'APM_IOC_GETPOWER': %s\n",
- strerror(errno));
- close(fd);
+ return NULL;
+ }
+#elif defined(__FreeBSD__)
+ #include <sys/sysctl.h>
+
+ const char *
+ battery_perc(const char *unused)
+ {
+ int cap;
+ size_t len;
+
+ len = sizeof(cap);
+ if (sysctlbyname("hw.acpi.battery.life", &cap, &len, NULL, 0) == -1
+ || !len)
return NULL;
- }
- close(fd);
- for (i = 0; i < LEN(map); i++) {
- if (map[i].state == apm_info.ac_state) {
- break;
- }
+ return bprintf("%d", cap);
+ }
+
+ const char *
+ battery_state(const char *unused)
+ {
+ int state;
+ size_t len;
+
+ len = sizeof(state);
+ if (sysctlbyname("hw.acpi.battery.state", &state, &len, NULL, 0) == -1
+ || !len)
+ return NULL;
+
+ switch(state) {
+ case 0:
+ case 2:
+ return "+";
+ case 1:
+ return "-";
+ default:
+ return "?";
}
- return (i == LEN(map)) ? "?" : map[i].symbol;
+ }
+
+ const char *
+ battery_remaining(const char *unused)
+ {
+ int rem;
+ size_t len;
+
+ len = sizeof(rem);
+ if (sysctlbyname("hw.acpi.battery.time", &rem, &len, NULL, 0) == -1
+ || !len
+ || rem == -1)
+ return NULL;
+
+ return bprintf("%uh %02um", rem / 60, rem % 60);
}
#endif