fixed battery detection

git-svn-id: http://tint2.googlecode.com/svn/trunk@79 121b4492-b84c-0410-8b4c-0d4edfb3f3cc

ChangeLog

@@ -1,3 +1,11 @@
+2009-05-31
+- fixed issue 87 and 88 : battery detection
+
+2009-05-26
+- fixed memory leak and battery detection
+
+2009-05-20
+- merge patch from yarin.kaul (fixed issue 52)
 
 2009-05-15
 - merge battery applet from Sebastian Reichel <elektranox@gmail.com>

src/battery/battery.c

@@ -40,7 +40,9 @@ static char buf_bat_percentage[10];
 static char buf_bat_time[20];
 
 int8_t battery_low_status;
-char* battery_low_cmd;
+char *battery_low_cmd;
+char *path_energy_now, *path_energy_full, *path_current_now, *path_status;
+
 
 void update_battery(struct batstate *data) {
 	FILE *fp;
@@ -49,28 +51,28 @@ void update_battery(struct batstate *data) {
 	int seconds = 0;
 	int8_t new_percentage = 0;
 
-	fp = fopen("/sys/class/power_supply/BAT0/energy_now", "r");
+	fp = fopen(path_energy_now, "r");
 	if(fp != NULL) {
 		fgets(tmp, sizeof tmp, fp);
 		energy_now = atoi(tmp);
 		fclose(fp);
 	}
 
-	fp = fopen("/sys/class/power_supply/BAT0/energy_full", "r");
+	fp = fopen(path_energy_full, "r");
 	if(fp != NULL) {
 		fgets(tmp, sizeof tmp, fp);
 		energy_full = atoi(tmp);
 		fclose(fp);
 	}
 
-	fp = fopen("/sys/class/power_supply/BAT0/current_now", "r");
+	fp = fopen(path_current_now, "r");
 	if(fp != NULL) {
 		fgets(tmp, sizeof tmp, fp);
 		current_now = atoi(tmp);
 		fclose(fp);
 	}
 
-	fp = fopen("/sys/class/power_supply/BAT0/status", "r");
+	fp = fopen(path_status, "r");
 	if(fp != NULL) {
 		fgets(tmp, sizeof tmp, fp);
 		fclose(fp);
@@ -114,6 +116,36 @@ void update_battery(struct batstate *data) {
 
 void init_battery()
 {
+	// check battery
+	GDir *directory;
+	GError *error = NULL;
+	const char *entryname;
+	char *battery_dir = 0;
+
+	path_energy_now = path_energy_full = path_current_now = path_status = 0;
+	directory = g_dir_open("/sys/class/power_supply", 0, &error);
+	if (error)
+		g_error_free(error);
+	else {
+		while ((entryname=g_dir_read_name(directory))) {
+			if (strncmp(entryname,"AC", 2) == 0) continue;
+
+			char *path1 = g_build_filename("/sys/class/power_supply", entryname, "present", NULL);
+			if (g_file_test (path1, G_FILE_TEST_EXISTS)) {
+				g_free(path1);
+				battery_dir = g_build_filename("/sys/class/power_supply", entryname, NULL);
+				break;
+			}
+			g_free(path1);
+		}
+	}
+	if (battery_dir != 0) {
+		path_energy_now = g_build_filename(battery_dir, "energy_now", NULL);
+		path_energy_full = g_build_filename(battery_dir, "energy_full", NULL);
+		path_current_now = g_build_filename(battery_dir, "current_now", NULL);
+		path_status = g_build_filename(battery_dir, "status", NULL);
+	}
+
 	FILE *fp;
    Panel *panel;
    Battery *battery;
@@ -128,26 +160,27 @@ void init_battery()
 		battery->area._draw_foreground = draw_battery;
 		battery->area._resize = resize_battery;
 
+		if (battery_dir == 0) panel->battery.area.on_screen = 0;
 		if (!battery->area.on_screen) continue;
-		if((fp = fopen("/sys/class/power_supply/BAT0/energy_now", "r")) == NULL) {
+		if((fp = fopen(path_energy_now, "r")) == NULL) {
 			fprintf(stderr, "ERROR: battery applet can't open energy_now\n");
 			panel->battery.area.on_screen = 0;
 			continue;
 		}
 		fclose(fp);
-		if((fp = fopen("/sys/class/power_supply/BAT0/energy_full", "r")) == NULL) {
+		if((fp = fopen(path_energy_full, "r")) == NULL) {
 			fprintf(stderr, "ERROR: battery applet can't open energy_full\n");
 			panel->battery.area.on_screen = 0;
 			continue;
 		}
 		fclose(fp);
-		if((fp = fopen("/sys/class/power_supply/BAT0/current_now", "r")) == NULL) {
+		if((fp = fopen(path_current_now, "r")) == NULL) {
 			fprintf(stderr, "ERROR: battery applet can't open current_now\n");
 			panel->battery.area.on_screen = 0;
 			continue;
 		}
 		fclose(fp);
-		if((fp = fopen("/sys/class/power_supply/BAT0/status", "r")) == NULL) {
+		if((fp = fopen(path_status, "r")) == NULL) {
 			fprintf(stderr, "ERROR: battery applet can't open status");
 			panel->battery.area.on_screen = 0;
 			continue;

src/battery/battery.h

@@ -3,6 +3,7 @@
 *
 * Battery with functional data (percentage, time to life) and drawing data
 * (area, font, ...). Each panel use his own drawing data.
+* Need kernel > 2.6.23.
 *
 **************************************************************************/
 
@@ -48,7 +49,9 @@ extern PangoFontDescription *bat1_font_desc;
 extern PangoFontDescription *bat2_font_desc;
 
 extern int8_t battery_low_status;
-extern char* battery_low_cmd;
+extern char *battery_low_cmd;
+extern char *path_energy_now, *path_energy_full, *path_current_now, *path_status;
+
 
 // initialize clock : y position, ...
 void update_battery(struct batstate *data);

src/tint.c

@@ -92,7 +92,13 @@ void cleanup()
    if (time2_font_desc) pango_font_description_free(time2_font_desc);
    if (time1_format) g_free(time1_format);
    if (time2_format) g_free(time2_format);
+   if (bat1_font_desc) pango_font_description_free(bat1_font_desc);
+   if (bat2_font_desc) pango_font_description_free(bat2_font_desc);
 	if (battery_low_cmd) g_free(battery_low_cmd);
+	if (path_energy_now) g_free(path_energy_now);
+	if (path_energy_full) g_free(path_energy_full);
+	if (path_current_now) g_free(path_current_now);
+	if (path_status) g_free(path_status);
 
    if (server.monitor) free(server.monitor);
    XFreeGC(server.dsp, server.gc);