]> git.sur5r.net Git - i3/i3status/blobdiff - src/print_battery_info.c
battery: initialize colorful_output to false
[i3/i3status] / src / print_battery_info.c
index 6ee89896cfed8c0e226e7a9bb77dcc2e19bc354d..95237d9ea60fff68687378a3fdd1e1996d6116c5 100644 (file)
@@ -1,23 +1,36 @@
 // vim:ts=8:expandtab
+#include <ctype.h>
 #include <time.h>
 #include <string.h>
 #include <stdlib.h>
 #include <stdio.h>
+#include <yajl/yajl_gen.h>
+#include <yajl/yajl_version.h>
 
 #include "i3status.h"
 
-#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
+#if defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
 #include <sys/types.h>
 #include <sys/sysctl.h>
 #endif
 
+#if defined(__OpenBSD__)
+#include <sys/types.h>
+#include <sys/ioctl.h>
+#include <sys/fcntl.h>
+#include <machine/apmvar.h>
+#endif
+
+#define BATT_STATUS_NAME(status) \
+    (status == CS_CHARGING ? "CHR" : \
+        (status == CS_DISCHARGING ? "BAT" : "FULL"))
 /*
  * Get battery information from /sys. Note that it uses the design capacity to
  * calculate the percentage, not the last full capacity, so you can see how
  * worn off your battery is.
  *
  */
-void print_battery_info(int number, const char *path, const char *format, bool last_full_capacity) {
+void print_battery_info(yajl_gen json_gen, char *buffer, int number, const char *path, const char *format, int low_threshold, char *threshold_type, bool last_full_capacity, bool integer_battery_capacity) {
         time_t empty_time;
         struct tm *empty_tm;
         char buf[1024];
@@ -25,22 +38,30 @@ void print_battery_info(int number, const char *path, const char *format, bool l
         char percentagebuf[16];
         char remainingbuf[256];
         char emptytimebuf[256];
+        char consumptionbuf[256];
         const char *walk, *last;
+        char *outwalk = buffer;
+        bool watt_as_unit;
+        bool colorful_output = false;
         int full_design = -1,
             remaining = -1,
-            present_rate = -1;
+            present_rate = -1,
+            voltage = -1;
         charging_status_t status = CS_DISCHARGING;
 
         memset(statusbuf, '\0', sizeof(statusbuf));
         memset(percentagebuf, '\0', sizeof(percentagebuf));
         memset(remainingbuf, '\0', sizeof(remainingbuf));
         memset(emptytimebuf, '\0', sizeof(emptytimebuf));
+        memset(consumptionbuf, '\0', sizeof(consumptionbuf));
+
+        INSTANCE(path);
 
 #if defined(LINUX)
         static char batpath[512];
         sprintf(batpath, path, number);
         if (!slurp(batpath, buf, sizeof(buf))) {
-                printf("No battery");
+                OUTPUT_FULL_TEXT("No battery");
                 return;
         }
 
@@ -53,11 +74,22 @@ void print_battery_info(int number, const char *path, const char *format, bool l
                 if (*walk != '=')
                         continue;
 
-                if (BEGINS_WITH(last, "POWER_SUPPLY_ENERGY_NOW") ||
-                    BEGINS_WITH(last, "POWER_SUPPLY_CHARGE_NOW"))
+                if (BEGINS_WITH(last, "POWER_SUPPLY_ENERGY_NOW")) {
+                        watt_as_unit = true;
                         remaining = atoi(walk+1);
+                }
+                else if (BEGINS_WITH(last, "POWER_SUPPLY_CHARGE_NOW")) {
+                        watt_as_unit = false;
+                        remaining = atoi(walk+1);
+                }
                 else if (BEGINS_WITH(last, "POWER_SUPPLY_CURRENT_NOW"))
                         present_rate = atoi(walk+1);
+                else if (BEGINS_WITH(last, "POWER_SUPPLY_VOLTAGE_NOW"))
+                        voltage = atoi(walk+1);
+                /* on some systems POWER_SUPPLY_POWER_NOW does not exist, but actually
+                 * it is the same as POWER_SUPPLY_CURRENT_NOW but with μWh as
+                 * unit instead of μAh. We will calculate it as we need it
+                 * later. */
                 else if (BEGINS_WITH(last, "POWER_SUPPLY_POWER_NOW"))
                         present_rate = atoi(walk+1);
                 else if (BEGINS_WITH(last, "POWER_SUPPLY_STATUS=Charging"))
@@ -80,15 +112,29 @@ void print_battery_info(int number, const char *path, const char *format, bool l
                 }
         }
 
-        if ((full_design == 1) || (remaining == -1))
+        /* the difference between POWER_SUPPLY_ENERGY_NOW and
+         * 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) {
+            present_rate = (((float)voltage / 1000.0) * ((float)present_rate / 1000.0));
+            remaining = (((float)voltage / 1000.0) * ((float)remaining / 1000.0));
+            full_design = (((float)voltage / 1000.0) * ((float)full_design / 1000.0));
+        }
+
+        if ((full_design == -1) || (remaining == -1)) {
+                OUTPUT_FULL_TEXT("No battery");
                 return;
+        }
 
-        (void)snprintf(statusbuf, sizeof(statusbuf), "%s",
-                        (status == CS_CHARGING ? "CHR" :
-                         (status == CS_DISCHARGING ? "BAT" : "FULL")));
+        (void)snprintf(statusbuf, sizeof(statusbuf), "%s", BATT_STATUS_NAME(status));
 
-        (void)snprintf(percentagebuf, sizeof(percentagebuf), "%.02f%%",
-                       (((float)remaining / (float)full_design) * 100));
+        float percentage_remaining = (((float)remaining / (float)full_design) * 100);
+        if (integer_battery_capacity) {
+                (void)snprintf(percentagebuf, sizeof(percentagebuf), "%.00f%%", percentage_remaining);
+        } else {
+                (void)snprintf(percentagebuf, sizeof(percentagebuf), "%.02f%%", percentage_remaining);
+        }
 
         if (present_rate > 0) {
                 float remaining_time;
@@ -106,6 +152,20 @@ void print_battery_info(int number, const char *path, const char *format, bool l
                 minutes = seconds / 60;
                 seconds -= (minutes * 60);
 
+                if (status == CS_DISCHARGING && low_threshold > 0) {
+                        if (strncmp(threshold_type, "percentage", strlen(threshold_type)) == 0
+                                && percentage_remaining < low_threshold) {
+                                START_COLOR("color_bad");
+                                colorful_output = true;
+                        } else if (strncmp(threshold_type, "time", strlen(threshold_type)) == 0
+                                && seconds_remaining < 60 * low_threshold) {
+                                START_COLOR("color_bad");
+                                colorful_output = true;
+                        } else {
+                            colorful_output = false;
+                        }
+                }
+
                 (void)snprintf(remainingbuf, sizeof(remainingbuf), "%02d:%02d:%02d",
                         max(hours, 0), max(minutes, 0), max(seconds, 0));
 
@@ -115,26 +175,40 @@ void print_battery_info(int number, const char *path, const char *format, bool l
 
                 (void)snprintf(emptytimebuf, sizeof(emptytimebuf), "%02d:%02d:%02d",
                         max(empty_tm->tm_hour, 0), max(empty_tm->tm_min, 0), max(empty_tm->tm_sec, 0));
+
+                (void)snprintf(consumptionbuf, sizeof(consumptionbuf), "%1.2fW",
+                        ((float)present_rate / 1000.0 / 1000.0));
+        } else {
+                /* On some systems, present_rate may not exist. Still, make sure
+                 * we colorize the output if threshold_type is set to percentage
+                 * (since we don't have any information on remaining time). */
+                if (status == CS_DISCHARGING && low_threshold > 0) {
+                        if (strncmp(threshold_type, "percentage", strlen(threshold_type)) == 0
+                                && percentage_remaining < low_threshold) {
+                                START_COLOR("color_bad");
+                                colorful_output = true;
+                        }
+                }
         }
-#elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__)
+#elif defined(__FreeBSD__) || defined(__FreeBSD_kernel__) || defined(__DragonFly__)
         int state;
         int sysctl_rslt;
         size_t sysctl_size = sizeof(sysctl_rslt);
 
         if (sysctlbyname(BATT_LIFE, &sysctl_rslt, &sysctl_size, NULL, 0) != 0) {
-                printf("No battery");
+                OUTPUT_FULL_TEXT("No battery");
                 return;
         }
 
         present_rate = sysctl_rslt;
         if (sysctlbyname(BATT_TIME, &sysctl_rslt, &sysctl_size, NULL, 0) != 0) {
-                printf("No battery");
+                OUTPUT_FULL_TEXT("No battery");
                 return;
         }
 
         remaining = sysctl_rslt;
         if (sysctlbyname(BATT_STATE, &sysctl_rslt, &sysctl_size, NULL,0) != 0) {
-                printf("No battery");
+                OUTPUT_FULL_TEXT("No battery");
                 return;
         }
 
@@ -148,9 +222,7 @@ void print_battery_info(int number, const char *path, const char *format, bool l
 
         full_design = sysctl_rslt;
 
-        (void)snprintf(statusbuf, sizeof(statusbuf), "%s",
-                        (status == CS_CHARGING ? "CHR" :
-                         (status == CS_DISCHARGING ? "BAT" : "FULL")));
+        (void)snprintf(statusbuf, sizeof(statusbuf), "%s", BATT_STATUS_NAME(status));
 
         (void)snprintf(percentagebuf, sizeof(percentagebuf), "%02d%%",
                        present_rate);
@@ -163,26 +235,110 @@ void print_battery_info(int number, const char *path, const char *format, bool l
                 (void)snprintf(remainingbuf, sizeof(remainingbuf), "%02dh%02d",
                                max(hours, 0), max(minutes, 0));
         }
+#elif defined(__OpenBSD__)
+       /*
+        * We're using apm(4) here, which is the interface to acpi(4) on amd64/i386 and
+        * the generic interface on macppc/sparc64/zaurus, instead of using sysctl(3) and
+        * probing acpi(4) devices.
+        */
+       struct apm_power_info apm_info;
+       int apm_fd;
+
+       apm_fd = open("/dev/apm", O_RDONLY);
+       if (apm_fd < 0) {
+               OUTPUT_FULL_TEXT("can't open /dev/apm");
+               return;
+       }
+       if (ioctl(apm_fd, APM_IOC_GETPOWER, &apm_info) < 0)
+               OUTPUT_FULL_TEXT("can't read power info");
+
+       close(apm_fd);
+
+       /* Don't bother to go further if there's no battery present. */
+       if ((apm_info.battery_state == APM_BATTERY_ABSENT) ||
+           (apm_info.battery_state == APM_BATT_UNKNOWN)) {
+               OUTPUT_FULL_TEXT("No battery");
+               return;
+       }
+
+       switch(apm_info.ac_state) {
+       case APM_AC_OFF:
+               status = CS_DISCHARGING;
+               break;
+       case APM_AC_ON:
+               status = CS_CHARGING;
+               break;
+       default:
+               /* If we don't know what's going on, just assume we're discharging. */
+               status = CS_DISCHARGING;
+               break;
+       }
+
+       (void)snprintf(statusbuf, sizeof(statusbuf), "%s", BATT_STATUS_NAME(status));
+        (void)snprintf(percentagebuf, sizeof(percentagebuf), "%02d%%", apm_info.battery_life);
+
+       if (status == CS_DISCHARGING && low_threshold > 0) {
+               if (strncmp(threshold_type, "percentage", strlen(threshold_type)) == 0
+                   && apm_info.battery_life < low_threshold) {
+                       START_COLOR("color_bad");
+                       colorful_output = true;
+               } else if (strncmp(threshold_type, "time", strlen(threshold_type)) == 0
+                          && apm_info.minutes_left < (u_int) low_threshold) {
+                       START_COLOR("color_bad");
+                       colorful_output = true;
+               }
+       }
+
+       /* Can't give a meaningful value for remaining minutes if we're charging. */
+       if (status != CS_CHARGING) {
+               (void)snprintf(remainingbuf, sizeof(remainingbuf), "%d", apm_info.minutes_left);
+       } else {
+               (void)snprintf(remainingbuf, sizeof(remainingbuf), "%s", "(CHR)");
+       }
+
+       if (colorful_output)
+               END_COLOR;
 #endif
 
+#define EAT_SPACE_FROM_OUTPUT_IF_EMPTY(_buf) \
+        do { \
+                if (strlen(_buf) == 0) { \
+                        if (outwalk > buffer && isspace(outwalk[-1])) \
+                                outwalk--; \
+                        else if (isspace(*(walk+1))) \
+                                walk++; \
+                } \
+        } while (0)
+
         for (walk = format; *walk != '\0'; walk++) {
                 if (*walk != '%') {
-                        putchar(*walk);
+                        *(outwalk++) = *walk;
                         continue;
                 }
 
                 if (strncmp(walk+1, "status", strlen("status")) == 0) {
-                        printf("%s", statusbuf);
+                        outwalk += sprintf(outwalk, "%s", statusbuf);
                         walk += strlen("status");
                 } else if (strncmp(walk+1, "percentage", strlen("percentage")) == 0) {
-                        printf("%s", percentagebuf);
+                        outwalk += sprintf(outwalk, "%s", percentagebuf);
                         walk += strlen("percentage");
                 } else if (strncmp(walk+1, "remaining", strlen("remaining")) == 0) {
-                        printf("%s", remainingbuf);
+                        outwalk += sprintf(outwalk, "%s", remainingbuf);
                         walk += strlen("remaining");
+                        EAT_SPACE_FROM_OUTPUT_IF_EMPTY(remainingbuf);
                 } else if (strncmp(walk+1, "emptytime", strlen("emptytime")) == 0) {
-                        printf("%s", emptytimebuf);
+                        outwalk += sprintf(outwalk, "%s", emptytimebuf);
                         walk += strlen("emptytime");
+                        EAT_SPACE_FROM_OUTPUT_IF_EMPTY(emptytimebuf);
+                } else if (strncmp(walk+1, "consumption", strlen("consumption")) == 0) {
+                        outwalk += sprintf(outwalk, "%s", consumptionbuf);
+                        walk += strlen("consumption");
+                        EAT_SPACE_FROM_OUTPUT_IF_EMPTY(consumptionbuf);
                 }
         }
+
+        if (colorful_output)
+                END_COLOR;
+
+        OUTPUT_FULL_TEXT(buffer);
 }