Implement battery functionality for NetBSD users
This patch takes a similar approach as the NetBSD CPU temperature code in that it uses proplib(3) to walk dictionaries supplied by envsys(4). In addition to providing the basic functionality, it: * Provides all existing format specifiers (%emptytime %consumption %status %percentage %remaining) * Respects all existing config options (hide_seconds, low_threshold, integer_battery_capacity, last_full_capacity) * Projects "time until full" when battery status is CS_CHARGING
This commit is contained in:
Alexander Vasarab
Michael Stapelberg
parent
93ead58bc1
commit
628149b227
@ -21,6 +21,12 @@
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#include <machine/apmvar.h>
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#endif
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#if defined(__NetBSD__)
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#include <fcntl.h>
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#include <prop/proplib.h>
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#include <sys/envsys.h>
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#endif
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#define BATT_STATUS_NAME(status) \
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(status == CS_CHARGING ? "CHR" : \
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(status == CS_DISCHARGING ? "BAT" : "FULL"))
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@ -316,6 +322,266 @@ void print_battery_info(yajl_gen json_gen, char *buffer, int number, const char
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if (colorful_output)
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END_COLOR;
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#elif defined(__NetBSD__)
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/*
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* Using envsys(4) via sysmon(4).
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*/
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int fd, rval, last_full_cap;
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bool is_found = false;
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char *sensor_desc;
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bool is_full = false;
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prop_dictionary_t dict;
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prop_array_t array;
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prop_object_iterator_t iter;
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prop_object_iterator_t iter2;
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prop_object_t obj, obj2, obj3, obj4, obj5;
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asprintf(&sensor_desc, "acpibat%d", number);
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fd = open("/dev/sysmon", O_RDONLY);
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if (fd < 0) {
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OUTPUT_FULL_TEXT("can't open /dev/sysmon");
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return;
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}
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rval = prop_dictionary_recv_ioctl(fd, ENVSYS_GETDICTIONARY, &dict);
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if (rval == -1) {
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close(fd);
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return;
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}
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if (prop_dictionary_count(dict) == 0) {
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prop_object_release(dict);
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close(fd);
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return;
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}
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iter = prop_dictionary_iterator(dict);
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if (iter == NULL) {
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prop_object_release(dict);
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close(fd);
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}
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/* iterate over the dictionary returned by the kernel */
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while ((obj = prop_object_iterator_next(iter)) != NULL) {
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/* skip this dict if it's not what we're looking for */
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if ((strlen(prop_dictionary_keysym_cstring_nocopy(obj)) == strlen(sensor_desc)) &&
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(strncmp(sensor_desc,
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prop_dictionary_keysym_cstring_nocopy(obj),
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strlen(sensor_desc)) != 0))
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continue;
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is_found = true;
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array = prop_dictionary_get_keysym(dict, obj);
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if (prop_object_type(array) != PROP_TYPE_ARRAY) {
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prop_object_iterator_release(iter);
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prop_object_release(dict);
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close(fd);
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return;
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}
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iter2 = prop_array_iterator(array);
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if (!iter2) {
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prop_object_iterator_release(iter);
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prop_object_release(dict);
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close(fd);
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return;
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}
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/* iterate over array of dicts specific to target battery */
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while ((obj2 = prop_object_iterator_next(iter2)) != NULL) {
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obj3 = prop_dictionary_get(obj2, "description");
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if (obj3 &&
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strlen(prop_string_cstring_nocopy(obj3)) == 8 &&
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strncmp("charging",
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prop_string_cstring_nocopy(obj3),
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8) == 0)
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{
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obj3 = prop_dictionary_get(obj2, "cur-value");
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if (prop_number_integer_value(obj3))
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status = CS_CHARGING;
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else
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status = CS_DISCHARGING;
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continue;
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}
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if (obj3 &&
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strlen(prop_string_cstring_nocopy(obj3)) == 6 &&
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strncmp("charge",
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prop_string_cstring_nocopy(obj3),
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6) == 0)
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{
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obj3 = prop_dictionary_get(obj2, "cur-value");
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obj4 = prop_dictionary_get(obj2, "max-value");
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obj5 = prop_dictionary_get(obj2, "type");
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remaining = prop_number_integer_value(obj3);
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full_design = prop_number_integer_value(obj4);
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if (remaining == full_design)
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is_full = true;
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if (strncmp("Ampere hour",
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prop_string_cstring_nocopy(obj5),
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11) == 0)
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watt_as_unit = false;
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else
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watt_as_unit = true;
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continue;
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}
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if (obj3 &&
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strlen(prop_string_cstring_nocopy(obj3)) == 14 &&
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strncmp("discharge rate",
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prop_string_cstring_nocopy(obj3),
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14) == 0)
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{
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obj3 = prop_dictionary_get(obj2, "cur-value");
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present_rate = prop_number_integer_value(obj3);
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continue;
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}
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if (obj3 &&
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strlen(prop_string_cstring_nocopy(obj3)) == 13 &&
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strncmp("last full cap",
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prop_string_cstring_nocopy(obj3),
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13) == 0)
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{
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obj3 = prop_dictionary_get(obj2, "cur-value");
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last_full_cap = prop_number_integer_value(obj3);
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continue;
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}
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if (obj3 &&
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strlen(prop_string_cstring_nocopy(obj3)) == 7 &&
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strncmp("voltage",
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prop_string_cstring_nocopy(obj3),
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7) == 0)
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{
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obj3 = prop_dictionary_get(obj2, "cur-value");
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voltage = prop_number_integer_value(obj3);
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continue;
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}
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}
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prop_object_iterator_release(iter2);
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}
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prop_object_iterator_release(iter);
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prop_object_release(dict);
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close(fd);
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if (! is_found) {
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OUTPUT_FULL_TEXT(format_down);
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return;
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}
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if (last_full_capacity)
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full_design = last_full_cap;
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if (! watt_as_unit) {
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present_rate = (((float)voltage / 1000.0) * ((float)present_rate / 1000.0));
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remaining = (((float)voltage / 1000.0) * ((float)remaining / 1000.0));
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full_design = (((float)voltage / 1000.0) * ((float)full_design / 1000.0));
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}
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float percentage_remaining =
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(((float)remaining / (float)full_design) * 100);
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if (integer_battery_capacity)
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(void)snprintf(percentagebuf,
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sizeof(percentagebuf),
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"%d%%",
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(int) percentage_remaining);
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else
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(void)snprintf(percentagebuf,
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sizeof(percentagebuf),
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"%.02f%%",
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percentage_remaining);
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/*
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* Handle percentage low_threshold here, and time low_threshold when
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* we have it.
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*/
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if (status == CS_DISCHARGING && low_threshold > 0) {
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if (strcasecmp(threshold_type, "percentage") == 0
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&& (((float)remaining / (float)full_design) * 100) < low_threshold) {
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START_COLOR("color_bad");
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colorful_output = true;
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}
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}
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if (is_full)
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(void)snprintf(statusbuf, sizeof(statusbuf), "%s", BATT_STATUS_NAME(CS_FULL));
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else
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(void)snprintf(statusbuf, sizeof(statusbuf), "%s", BATT_STATUS_NAME(status));
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/*
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* The envsys(4) ACPI routines do not appear to provide a 'time
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* remaining' figure, so we must deduce it.
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*/
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float remaining_time;
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int seconds, hours, minutes, seconds_remaining;
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if (status == CS_CHARGING)
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remaining_time = ((float)full_design - (float)remaining)
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/ (float)present_rate;
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else if (status == CS_DISCHARGING)
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remaining_time = ((float)remaining / (float)present_rate);
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else remaining_time = 0;
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seconds_remaining = (int)(remaining_time * 3600.0);
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hours = seconds_remaining / 3600;
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seconds = seconds_remaining - (hours * 3600);
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minutes = seconds / 60;
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seconds -= (minutes * 60);
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if (status != CS_CHARGING) {
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if (hide_seconds)
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(void)snprintf(remainingbuf, sizeof(remainingbuf), "%02d:%02d",
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max(hours, 0), max(minutes, 0));
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else
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(void)snprintf(remainingbuf, sizeof(remainingbuf), "%02d:%02d:%02d",
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max(hours, 0), max(minutes, 0), max(seconds, 0));
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if (low_threshold > 0) {
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if (strcasecmp(threshold_type, "time") == 0
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&& ((float) seconds_remaining / 60.0) < (u_int) low_threshold) {
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START_COLOR("color_bad");
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colorful_output = true;
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}
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}
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} else {
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if (hide_seconds)
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(void)snprintf(remainingbuf, sizeof(remainingbuf), "(%02d:%02d until full)",
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max(hours, 0), max(minutes, 0));
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else
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(void)snprintf(remainingbuf, sizeof(remainingbuf), "(%02d:%02d:%02d until full)",
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max(hours, 0), max(minutes, 0), max(seconds, 0));
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}
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empty_time = time(NULL);
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empty_time += seconds_remaining;
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empty_tm = localtime(&empty_time);
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/* No need to show empty time if battery is charging */
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if (status != CS_CHARGING) {
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if (hide_seconds)
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(void)snprintf(emptytimebuf, sizeof(emptytimebuf), "%02d:%02d",
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max(empty_tm->tm_hour, 0), max(empty_tm->tm_min, 0));
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else
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(void)snprintf(emptytimebuf, sizeof(emptytimebuf), "%02d:%02d:%02d",
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max(empty_tm->tm_hour, 0), max(empty_tm->tm_min, 0), max(empty_tm->tm_sec, 0));
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}
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(void)snprintf(consumptionbuf, sizeof(consumptionbuf), "%1.2fW",
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((float)present_rate / 1000.0 / 1000.0));
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#endif
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#define EAT_SPACE_FROM_OUTPUT_IF_EMPTY(_buf) \
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