From 0f454b7140ec2d95437d4adc4f420947bf72eced Mon Sep 17 00:00:00 2001
From: Carter Li <zhangsongcui3371@sina.com>
Date: Sat, 21 Dec 2024 12:04:57 +0800
Subject: [PATCH] Battery (OpenBSD): add support

---
 CMakeLists.txt                       |  2 +-
 src/detection/battery/battery_obsd.c | 52 ++++++++++++++++++++++++++++
 2 files changed, 53 insertions(+), 1 deletion(-)
 create mode 100644 src/detection/battery/battery_obsd.c

diff --git a/CMakeLists.txt b/CMakeLists.txt
index 447286642..a70379ee4 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -780,7 +780,7 @@ elseif(OpenBSD)
         src/common/networking_linux.c
         src/common/processing_linux.c
         src/common/sysctl.c
-        src/detection/battery/battery_nosupport.c
+        src/detection/battery/battery_obsd.c
         src/detection/bios/bios_nosupport.c
         src/detection/bluetooth/bluetooth_linux.c
         src/detection/bluetoothradio/bluetoothradio_linux.c
diff --git a/src/detection/battery/battery_obsd.c b/src/detection/battery/battery_obsd.c
new file mode 100644
index 000000000..034f8b20d
--- /dev/null
+++ b/src/detection/battery/battery_obsd.c
@@ -0,0 +1,52 @@
+#include "battery.h"
+#include "common/io/io.h"
+
+#include <machine/apmvar.h>
+#include <sys/ioctl.h>
+#include <unistd.h>
+#include <fcntl.h>
+
+const char* ffDetectBattery(FF_MAYBE_UNUSED FFBatteryOptions* options, FFlist* result)
+{
+    FF_AUTO_CLOSE_FD int devfd = open("/dev/apm", O_RDONLY);
+
+    if (devfd < 0) return "open(dev/apm, O_RDONLY) failed";
+
+    struct apm_power_info info = {};
+
+    if (ioctl(devfd, APM_IOC_GETPOWER, &info) < 0)
+        return "ioctl(APM_IOC_GETPOWER) failed";
+
+    if (info.battery_state == APM_BATTERY_ABSENT)
+        return NULL;
+
+    FFBatteryResult* battery = (FFBatteryResult*) ffListAdd(result);
+    battery->temperature = FF_BATTERY_TEMP_UNSET;
+    battery->cycleCount = 0;
+    battery->timeRemaining = -1;
+    battery->capacity = info.battery_life;
+    ffStrbufInit(&battery->manufacturer);
+    ffStrbufInit(&battery->modelName);
+    ffStrbufInit(&battery->status);
+    ffStrbufInit(&battery->technology);
+    ffStrbufInit(&battery->serial);
+    ffStrbufInit(&battery->manufactureDate);
+
+    if (info.ac_state == APM_AC_ON)
+        ffStrbufAppendS(&battery->status, "AC Connected");
+    else if (info.ac_state == APM_AC_BACKUP)
+        ffStrbufAppendS(&battery->status, "Backup In Use");
+    else if (info.ac_state == APM_AC_OFF)
+    {
+        battery->timeRemaining = info.minutes_left * 60
+        ffStrbufAppendS(&battery->status, "Discharging");
+    }
+
+    if (info.battery_state == APM_BATT_CRITICAL || info.battery_state == APM_BATT_CHARGING)
+    {
+        if (battery->status.length) ffStrbufAppendS(&battery->status, ", ");
+        ffStrbufAppendS(&battery->status, info.battery_state == APM_BATT_CRITICAL ? "Critical" : "Charging");
+    }
+
+    return NULL;
+}