Split out Linux battery implementation and support multiple batteries
Some notebooks, like the ThinkPad X240 and X250 have two batteries installed. So far only one of the batteries have been checked by the tint2 widget making it more or less useless on those systems. After this patch tint2 will aggregate the data from all batteries instead.
This commit is contained in:
Sebastian Reichel
parent
84f9f6d0cd
commit
ae375ae526
4 changed files with 300 additions and 177 deletions
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@ -78,7 +78,7 @@ set( SOURCES src/config.c
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src/util/window.c )
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if( ENABLE_BATTERY )
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set( SOURCES ${SOURCES} src/battery/battery.c )
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set( SOURCES ${SOURCES} src/battery/battery.c src/battery/linux.c)
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add_definitions( -DENABLE_BATTERY )
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endif( ENABLE_BATTERY )
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@ -61,10 +61,6 @@ char *battery_mclick_command;
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char *battery_rclick_command;
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char *battery_uwheel_command;
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char *battery_dwheel_command;
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gchar *path_energy_now;
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gchar *path_energy_full;
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gchar *path_current_now;
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gchar *path_status;
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int battery_found;
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#if defined(__OpenBSD__) || defined(__NetBSD__)
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@ -151,10 +147,6 @@ void default_battery()
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battery_rclick_command = NULL;
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battery_uwheel_command = NULL;
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battery_dwheel_command = NULL;
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path_energy_now = NULL;
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path_energy_full = NULL;
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path_current_now = NULL;
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path_status = NULL;
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battery_state.percentage = 0;
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battery_state.time.hours = 0;
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battery_state.time.minutes = 0;
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@ -171,14 +163,6 @@ void cleanup_battery()
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bat1_font_desc = NULL;
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pango_font_description_free(bat2_font_desc);
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bat2_font_desc = NULL;
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g_free(path_energy_now);
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path_energy_now = NULL;
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g_free(path_energy_full);
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path_energy_full = NULL;
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g_free(path_current_now);
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path_current_now = NULL;
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g_free(path_status);
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path_status = NULL;
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free(battery_low_cmd);
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battery_low_cmd = NULL;
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free(battery_lclick_command);
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@ -199,6 +183,8 @@ void cleanup_battery()
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if ((apm_fd != -1) && (close(apm_fd) == -1))
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warn("cannot close /dev/apm");
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apm_fd = -1;
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#elif defined(__linux)
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free_linux_batteries();
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#endif
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}
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@ -224,89 +210,8 @@ void init_battery()
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battery_found = (sysctlbyname("hw.acpi.battery.state", &sysctl_out, &len, NULL, 0) == 0) ||
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(sysctlbyname("hw.acpi.battery.time", &sysctl_out, &len, NULL, 0) == 0) ||
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(sysctlbyname("hw.acpi.battery.life", &sysctl_out, &len, NULL, 0) == 0);
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#else // Linux
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GDir *directory = 0;
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GError *error = NULL;
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const char *entryname;
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gchar *battery_dir = 0;
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directory = g_dir_open("/sys/class/power_supply", 0, &error);
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if (error) {
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g_error_free(error);
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} else {
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while ((entryname = g_dir_read_name(directory))) {
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if (strncmp(entryname, "AC", 2) == 0)
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continue;
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gchar *path1 = g_build_filename("/sys/class/power_supply", entryname, "present", NULL);
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if (g_file_test(path1, G_FILE_TEST_EXISTS)) {
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g_free(path1);
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battery_dir = g_build_filename("/sys/class/power_supply", entryname, NULL);
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break;
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}
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g_free(path1);
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}
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}
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if (directory)
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g_dir_close(directory);
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if (!battery_dir) {
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fprintf(stderr, "ERROR: battery applet cannot find any battery\n");
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battery_found = 0;
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} else {
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battery_found = 1;
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g_free(path_energy_now);
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path_energy_now = g_build_filename(battery_dir, "energy_now", NULL);
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if (!g_file_test(path_energy_now, G_FILE_TEST_EXISTS)) {
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g_free(path_energy_now);
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path_energy_now = g_build_filename(battery_dir, "charge_now", NULL);
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}
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if (!g_file_test(path_energy_now, G_FILE_TEST_EXISTS)) {
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fprintf(stderr, "ERROR: battery applet cannot find energy_now nor charge_now\n");
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g_free(path_energy_now);
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path_energy_now = NULL;
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}
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g_free(path_energy_full);
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path_energy_full = g_build_filename(battery_dir, "energy_full", NULL);
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if (!g_file_test(path_energy_full, G_FILE_TEST_EXISTS)) {
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g_free(path_energy_full);
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path_energy_full = g_build_filename(battery_dir, "charge_full", NULL);
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}
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if (!g_file_test(path_energy_full, G_FILE_TEST_EXISTS)) {
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fprintf(stderr, "ERROR: battery applet cannot find energy_now nor charge_now\n");
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g_free(path_energy_full);
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path_energy_full = NULL;
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}
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g_free(path_current_now);
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path_current_now = g_build_filename(battery_dir, "power_now", NULL);
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if (!g_file_test(path_current_now, G_FILE_TEST_EXISTS)) {
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g_free(path_current_now);
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path_current_now = g_build_filename(battery_dir, "current_now", NULL);
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}
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if (!g_file_test(path_current_now, G_FILE_TEST_EXISTS)) {
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fprintf(stderr, "ERROR: battery applet cannot find power_now nor current_now\n");
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g_free(path_current_now);
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path_current_now = NULL;
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}
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g_free(path_status);
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path_status = g_build_filename(battery_dir, "status", NULL);
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if (!g_file_test(path_status, G_FILE_TEST_EXISTS)) {
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fprintf(stderr, "ERROR: battery applet cannot find battery status\n");
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g_free(path_status);
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path_status = NULL;
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}
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g_free(battery_dir);
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battery_dir = NULL;
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}
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if (!path_status) {
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battery_found = 0;
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fprintf(stderr, "ERROR: battery applet cannot find any batteries\n");
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}
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#elif defined(__linux)
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battery_found = init_linux_batteries();
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#endif
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if (!battery_timeout)
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@ -420,82 +325,7 @@ int update_battery() {
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else
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new_percentage = sysctl_out;
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#else
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FILE *fp = NULL;
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char tmp[25] = "";
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int64_t current_now = 0;
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if (path_status) {
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fp = fopen(path_status, "r");
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if (fp != NULL) {
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if (fgets(tmp, sizeof(tmp), fp)) {
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if (strcasecmp(tmp, "Charging\n") == 0)
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battery_state.state = BATTERY_CHARGING;
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if (strcasecmp(tmp, "Discharging\n") == 0)
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battery_state.state = BATTERY_DISCHARGING;
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if (strcasecmp(tmp, "Full\n") == 0)
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battery_state.state = BATTERY_FULL;
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}
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fclose(fp);
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} else {
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errors = 1;
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}
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} else {
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errors = 1;
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}
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if (path_energy_now) {
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fp = fopen(path_energy_now, "r");
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if (fp != NULL) {
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if (fgets(tmp, sizeof tmp, fp))
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energy_now = atoi(tmp);
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fclose(fp);
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} else {
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errors = 1;
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}
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} else {
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errors = 1;
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}
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if (path_energy_full) {
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fp = fopen(path_energy_full, "r");
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if (fp != NULL) {
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if (fgets(tmp, sizeof tmp, fp))
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energy_full = atoi(tmp);
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fclose(fp);
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} else {
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errors = 1;
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}
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} else {
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errors = 1;
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}
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if (path_current_now) {
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fp = fopen(path_current_now, "r");
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if (fp != NULL) {
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if (fgets(tmp, sizeof tmp, fp))
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current_now = atoi(tmp);
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fclose(fp);
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} else {
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errors = 1;
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}
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} else {
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errors = 1;
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}
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if (current_now > 0) {
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switch (battery_state.state) {
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case BATTERY_CHARGING:
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seconds = 3600 * (energy_full - energy_now) / current_now;
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break;
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case BATTERY_DISCHARGING:
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seconds = 3600 * energy_now / current_now;
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break;
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default:
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seconds = 0;
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break;
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}
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} else {
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seconds = 0;
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}
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update_linux_batteries(&battery_state.state, &energy_now, &energy_full, &seconds);
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#endif
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battery_state.time.hours = seconds / 3600;
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@ -79,4 +79,10 @@ int resize_battery(void *obj);
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void battery_action(int button);
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#ifdef __linux
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gboolean init_linux_batteries();
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void free_linux_batteries();
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void update_linux_batteries(enum chargestate *state, gint64 *energy_now, gint64 *energy_full, int *seconds);
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#endif
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#endif
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287
src/battery/linux.c
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287
src/battery/linux.c
Normal file
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@ -0,0 +1,287 @@
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/**************************************************************************
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*
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* Tint2 : Linux battery
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*
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* Copyright (C) 2015 Sebastian Reichel <sre@ring0.de>
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License version 2
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* or any later version as published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301, USA.
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**************************************************************************/
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#ifdef __linux
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#include <stdlib.h>
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#include "common.h"
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#include "battery.h"
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struct psy_battery {
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/* generic properties */
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gchar* name;
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/* sysfs files */
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gchar* path_present;
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gchar* path_energy_now;
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gchar* path_energy_full;
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gchar* path_power_now;
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gchar* path_status;
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/* sysfs hints */
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gboolean energy_in_uamp;
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gboolean power_in_uamp;
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/* values */
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gboolean present;
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gint energy_now;
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gint energy_full;
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gint power_now;
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enum chargestate status;
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};
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#define RETURN_ON_ERROR(err) if(error) { g_error_free(err); return FALSE; }
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static GList *batteries = NULL;
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static gboolean power_supply_is_battery(const gchar *entryname) {
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gchar *path_type = g_build_filename("/sys/class/power_supply", entryname, "type", NULL);
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GError *error = NULL;
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gchar *type;
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gsize typelen;
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g_file_get_contents(path_type, &type, &typelen, &error);
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g_free(path_type);
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RETURN_ON_ERROR(error);
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if(g_strcmp0(type, "Battery\n")) {
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g_free(type);
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return FALSE;
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}
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g_free(type);
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return TRUE;
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}
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static gboolean init_linux_battery(struct psy_battery *bat) {
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const gchar *entryname = bat->name;
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bat->energy_in_uamp = FALSE;
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bat->power_in_uamp = FALSE;
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bat->path_present = g_build_filename("/sys/class/power_supply", entryname, "present", NULL);
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if (!g_file_test(bat->path_present, G_FILE_TEST_EXISTS)) {
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goto err0;
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}
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bat->path_energy_now = g_build_filename("/sys/class/power_supply", entryname, "energy_now", NULL);
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if (!g_file_test(bat->path_energy_now, G_FILE_TEST_EXISTS)) {
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g_free(bat->path_energy_now);
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bat->path_energy_now = g_build_filename("/sys/class/power_supply", entryname, "charge_now", NULL);
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bat->energy_in_uamp = TRUE;
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}
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if (!g_file_test(bat->path_energy_now, G_FILE_TEST_EXISTS)) {
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goto err1;
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}
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if(!bat->energy_in_uamp) {
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bat->path_energy_full = g_build_filename("/sys/class/power_supply", entryname, "energy_full", NULL);
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if (!g_file_test(bat->path_energy_full, G_FILE_TEST_EXISTS))
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goto err2;
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} else {
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bat->path_energy_full = g_build_filename("/sys/class/power_supply", entryname, "charge_full", NULL);
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if (!g_file_test(bat->path_energy_full, G_FILE_TEST_EXISTS))
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goto err2;
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}
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bat->path_power_now = g_build_filename("/sys/class/power_supply", entryname, "power_now", NULL);
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if (!g_file_test(bat->path_power_now, G_FILE_TEST_EXISTS)) {
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g_free(bat->path_power_now);
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bat->path_power_now = g_build_filename("/sys/class/power_supply", entryname, "current_now", NULL);
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bat->power_in_uamp = TRUE;
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}
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if (!g_file_test(bat->path_power_now, G_FILE_TEST_EXISTS)) {
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goto err3;
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}
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bat->path_status = g_build_filename("/sys/class/power_supply", entryname, "status", NULL);
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if (!g_file_test(bat->path_status, G_FILE_TEST_EXISTS)) {
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goto err4;
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}
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return TRUE;
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err4:
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g_free(bat->path_status);
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err3:
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g_free(bat->path_power_now);
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err2:
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g_free(bat->path_energy_full);
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err1:
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g_free(bat->path_energy_now);
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err0:
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g_free(bat->path_present);
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return FALSE;
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}
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void free_linux_batteries() {
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GList *l = batteries;
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while (l != NULL) {
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GList *next = l->next;
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struct psy_battery *bat = l->data;
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g_free(bat->name);
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g_free(bat->path_status);
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g_free(bat->path_power_now);
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g_free(bat->path_energy_full);
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g_free(bat->path_energy_now);
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g_free(bat->path_present);
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batteries = g_list_delete_link(batteries, l);
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l = next;
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}
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batteries = NULL;
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}
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gboolean init_linux_batteries() {
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GDir *directory = 0;
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GError *error = NULL;
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const char *entryname;
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free_linux_batteries();
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directory = g_dir_open("/sys/class/power_supply", 0, &error);
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RETURN_ON_ERROR(error);
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while ((entryname = g_dir_read_name(directory))) {
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if(!power_supply_is_battery(entryname))
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continue;
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struct psy_battery *bat = g_malloc0(sizeof(*bat));
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bat->name = g_strdup(entryname);
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if(init_linux_battery(bat)) {
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batteries = g_list_append(batteries, bat);
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fprintf(stdout, "found battery \"%s\"\n", bat->name);
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} else {
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g_free(bat);
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fprintf(stderr, RED "failed to initialize battery \"%s\"\n" RESET, entryname);
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}
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}
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g_dir_close(directory);
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return batteries != NULL;
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}
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static gboolean update_linux_battery(struct psy_battery *bat) {
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GError *error = NULL;
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gchar *data;
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gsize datalen;
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/* reset values */
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bat->present = 0;
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bat->status = BATTERY_UNKNOWN;
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bat->energy_now = 0;
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bat->energy_full = 0;
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bat->power_now = 0;
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/* present */
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g_file_get_contents(bat->path_present, &data, &datalen, &error);
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RETURN_ON_ERROR(error);
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bat->present = (atoi(data) == 1);
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g_free(data);
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/* we are done, if battery is not present */
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if(!bat->present)
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return TRUE;
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/* status */
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bat->status = BATTERY_UNKNOWN;
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g_file_get_contents(bat->path_status, &data, &datalen, &error);
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RETURN_ON_ERROR(error);
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if (!g_strcmp0(data, "Charging\n")) {
|
||||
bat->status = BATTERY_CHARGING;
|
||||
} else if (!g_strcmp0(data, "Discharging\n")) {
|
||||
bat->status = BATTERY_DISCHARGING;
|
||||
} else if (!g_strcmp0(data, "Full\n")) {
|
||||
bat->status = BATTERY_FULL;
|
||||
}
|
||||
g_free(data);
|
||||
|
||||
/* energy now */
|
||||
g_file_get_contents(bat->path_energy_now, &data, &datalen, &error);
|
||||
RETURN_ON_ERROR(error);
|
||||
bat->energy_now = atoi(data);
|
||||
g_free(data);
|
||||
|
||||
/* energy full */
|
||||
g_file_get_contents(bat->path_energy_full, &data, &datalen, &error);
|
||||
RETURN_ON_ERROR(error);
|
||||
bat->energy_full = atoi(data);
|
||||
g_free(data);
|
||||
|
||||
/* power now */
|
||||
g_file_get_contents(bat->path_power_now, &data, &datalen, &error);
|
||||
RETURN_ON_ERROR(error);
|
||||
bat->power_now = atoi(data);
|
||||
g_free(data);
|
||||
|
||||
return TRUE;
|
||||
}
|
||||
|
||||
void update_linux_batteries(enum chargestate *state, gint64 *energy_now, gint64 *energy_full, int *seconds) {
|
||||
GList *l;
|
||||
|
||||
gint64 total_energy_now = 0;
|
||||
gint64 total_energy_full = 0;
|
||||
gint64 total_power_now = 0;
|
||||
|
||||
gboolean charging = FALSE;
|
||||
gboolean discharging = FALSE;
|
||||
gboolean full = FALSE;
|
||||
|
||||
for (l = batteries; l != NULL; l = l->next) {
|
||||
struct psy_battery *bat = l->data;
|
||||
update_linux_battery(bat);
|
||||
|
||||
total_energy_now += bat->energy_now;
|
||||
total_energy_full += bat->energy_full;
|
||||
total_power_now += bat->power_now;
|
||||
|
||||
charging |= (bat->status == BATTERY_CHARGING);
|
||||
discharging |= (bat->status == BATTERY_DISCHARGING);
|
||||
full |= (bat->status == BATTERY_FULL);
|
||||
}
|
||||
|
||||
/* global energy stats */
|
||||
*energy_now = total_energy_now;
|
||||
*energy_full = total_energy_full;
|
||||
|
||||
/* build global state */
|
||||
*state = BATTERY_UNKNOWN;
|
||||
if (charging && !discharging)
|
||||
*state = BATTERY_CHARGING;
|
||||
else if (!charging && discharging)
|
||||
*state = BATTERY_DISCHARGING;
|
||||
else if (!charging && !discharging && full)
|
||||
*state = BATTERY_FULL;
|
||||
|
||||
/* calculate seconds */
|
||||
*seconds = 0;
|
||||
if (total_power_now > 0) {
|
||||
if(*state == BATTERY_CHARGING)
|
||||
*seconds = 3600 * (total_energy_full - total_energy_now) / total_power_now;
|
||||
else if(*state == BATTERY_DISCHARGING)
|
||||
*seconds = 3600 * total_energy_now / total_power_now;
|
||||
}
|
||||
}
|
||||
|
||||
#endif
|
||||
Loading…
Reference in a new issue