]> git.sur5r.net Git - i3/i3status/blobdiff - src/print_battery_info.c
Read multiple batteries on DragonFly BSD.
[i3/i3status] / src / print_battery_info.c
index 7883a113290896d5d1221af5ac6ad97b5e0ad0c0..fa707146a0fe3d6679ad064a791350334715298d 100644 (file)
@@ -1,9 +1,9 @@
 // vim:ts=4:sw=4:expandtab
 #include <ctype.h>
-#include <time.h>
-#include <string.h>
-#include <stdlib.h>
 #include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
 #include <yajl/yajl_gen.h>
 #include <yajl/yajl_version.h>
 
 #endif
 
 #if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
-#include <sys/types.h>
-#include <sys/sysctl.h>
 #include <dev/acpica/acpiio.h>
+#include <sys/sysctl.h>
+#include <sys/types.h>
 #endif
 
-#if defined(__OpenBSD__)
-#include <sys/types.h>
-#include <sys/ioctl.h>
+#if defined(__DragonFly__)
 #include <sys/fcntl.h>
+#endif
+
+#if defined(__OpenBSD__)
 #include <machine/apmvar.h>
+#include <sys/fcntl.h>
+#include <sys/ioctl.h>
+#include <sys/types.h>
 #endif
 
 #if defined(__NetBSD__)
@@ -55,6 +59,22 @@ struct battery_info {
     charging_status_t status;
 };
 
+#if defined(__DragonFly__)
+#define ACPIDEV "/dev/acpi"
+static int acpifd;
+
+static bool acpi_init(void) {
+    if (acpifd == 0) {
+        acpifd = open(ACPIDEV, O_RDWR);
+        if (acpifd == -1)
+            acpifd = open(ACPIDEV, O_RDONLY);
+        if (acpifd == -1)
+            return false;
+    }
+    return true;
+}
+#endif
+
 #if defined(LINUX) || defined(__NetBSD__)
 /*
  * Add batt_info data to acc.
@@ -138,9 +158,13 @@ static bool slurp_battery_info(struct battery_info *batt_info, yajl_gen json_gen
         if (BEGINS_WITH(last, "POWER_SUPPLY_ENERGY_NOW=")) {
             watt_as_unit = true;
             batt_info->remaining = atoi(walk + 1);
+            batt_info->percentage_remaining = -1;
         } else if (BEGINS_WITH(last, "POWER_SUPPLY_CHARGE_NOW=")) {
             watt_as_unit = false;
             batt_info->remaining = atoi(walk + 1);
+            batt_info->percentage_remaining = -1;
+        } else if (BEGINS_WITH(last, "POWER_SUPPLY_CAPACITY=") && batt_info->remaining == -1) {
+            batt_info->percentage_remaining = atoi(walk + 1);
         } else if (BEGINS_WITH(last, "POWER_SUPPLY_CURRENT_NOW="))
             batt_info->present_rate = abs(atoi(walk + 1));
         else if (BEGINS_WITH(last, "POWER_SUPPLY_VOLTAGE_NOW="))
@@ -171,13 +195,48 @@ static bool slurp_battery_info(struct battery_info *batt_info, yajl_gen json_gen
      * POWER_SUPPLY_CHARGE_NOW is the unit of measurement. The energy is
      * given in mWh, the charge in mAh. So calculate every value given in
      * ampere to watt */
-    if (!watt_as_unit && voltage != -1) {
-        batt_info->present_rate = (((float)voltage / 1000.0) * ((float)batt_info->present_rate / 1000.0));
-        batt_info->remaining = (((float)voltage / 1000.0) * ((float)batt_info->remaining / 1000.0));
-        batt_info->full_design = (((float)voltage / 1000.0) * ((float)batt_info->full_design / 1000.0));
-        batt_info->full_last = (((float)voltage / 1000.0) * ((float)batt_info->full_last / 1000.0));
+    if (!watt_as_unit && voltage >= 0) {
+        if (batt_info->present_rate > 0) {
+            batt_info->present_rate = (((float)voltage / 1000.0) * ((float)batt_info->present_rate / 1000.0));
+        }
+        if (batt_info->remaining > 0) {
+            batt_info->remaining = (((float)voltage / 1000.0) * ((float)batt_info->remaining / 1000.0));
+        }
+        if (batt_info->full_design > 0) {
+            batt_info->full_design = (((float)voltage / 1000.0) * ((float)batt_info->full_design / 1000.0));
+        }
+        if (batt_info->full_last > 0) {
+            batt_info->full_last = (((float)voltage / 1000.0) * ((float)batt_info->full_last / 1000.0));
+        }
     }
-#elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
+#elif defined(__DragonFly__)
+    union acpi_battery_ioctl_arg battio;
+    if (acpi_init()) {
+        battio.unit = number;
+        ioctl(acpifd, ACPIIO_BATT_GET_BIF, &battio);
+        batt_info->full_design = battio.bif.dcap;
+        batt_info->full_last = battio.bif.lfcap;
+        battio.unit = number;
+        ioctl(acpifd, ACPIIO_BATT_GET_BATTINFO, &battio);
+        batt_info->percentage_remaining = battio.battinfo.cap;
+        batt_info->present_rate = battio.battinfo.rate;
+        batt_info->seconds_remaining = battio.battinfo.min * 60;
+        switch (battio.battinfo.state) {
+            case 0:
+                batt_info->status = CS_FULL;
+                break;
+            case ACPI_BATT_STAT_CHARGING:
+                batt_info->status = CS_CHARGING;
+                break;
+            case ACPI_BATT_STAT_DISCHARG:
+                batt_info->status = CS_DISCHARGING;
+                break;
+            default:
+                batt_info->status = CS_UNKNOWN;
+        }
+        OUTPUT_FULL_TEXT(format_down);
+    }
+#elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
     int state;
     int sysctl_rslt;
     size_t sysctl_size = sizeof(sysctl_rslt);
@@ -495,8 +554,19 @@ void print_battery_info(yajl_gen json_gen, char *buffer, int number, const char
             return;
     }
 
-    int full = (last_full_capacity ? batt_info.full_last : batt_info.full_design);
-    if (full < 0 && batt_info.percentage_remaining < 0) {
+    // *Choose* a measure of the 'full' battery. It is whichever is better of
+    // the battery's (hardware-given) design capacity (batt_info.full_design)
+    // and the battery's last known good charge (batt_info.full_last).
+    // We prefer the design capacity, but use the last capacity if we don't have it,
+    // or if we are asked to (last_full_capacity == true); but similarly we use
+    // the design capacity if we don't have the last capacity.
+    // If we don't have either then both full_design and full_last < 0,
+    // which implies full < 0, which bails out on the following line.
+    int full = batt_info.full_design;
+    if (full < 0 || (last_full_capacity && batt_info.full_last >= 0)) {
+        full = batt_info.full_last;
+    }
+    if (full < 0 && batt_info.remaining < 0 && batt_info.percentage_remaining < 0) {
         /* We have no physical measurements and no estimates. Nothing
          * much we can report, then. */
         OUTPUT_FULL_TEXT(format_down);
@@ -598,6 +668,7 @@ void print_battery_info(yajl_gen json_gen, char *buffer, int number, const char
         } else if (BEGINS_WITH(walk + 1, "emptytime")) {
             if (batt_info.seconds_remaining >= 0) {
                 time_t empty_time = time(NULL) + batt_info.seconds_remaining;
+                set_timezone(NULL); /* Use local time. */
                 struct tm *empty_tm = localtime(&empty_time);
 
                 if (hide_seconds)