path: root/xfce-extra/xfce4-battery/files/xfce4-battery-0.5.0-sysfs.patch

diff -ru xfce4-battery-plugin-0.5.0.orig/panel-plugin/libacpi.c xfce4-battery-plugin-0.5.0-fixed/panel-plugin/libacpi.c
--- xfce4-battery-plugin-0.5.0.orig/panel-plugin/libacpi.c	2008-04-06 02:56:10.502679698 +0200
+++ xfce4-battery-plugin-0.5.0-fixed/panel-plugin/libacpi.c	2008-04-06 03:15:11.306678469 +0200
@@ -54,6 +54,10 @@
 
 static char batteries[MAXBATT][128];
 static char battinfo[MAXBATT][128];
+/* path to AC adapter because not all AC adapter are listed 
+in /sys/class/power_supply/AC/ this obviously only supports one AC adapter. */
+static char sysfsacdir[128]; 
+
 #ifndef __linux__
 #if HAVE_SYSCTL
  static int
@@ -181,9 +185,76 @@
 #endif
 #endif
 
+int check_acpi_sysfs(void)
+{
+	DIR *sysfs;
+	struct dirent *batt;
+	char *name;
+	FILE *typefile;
+	char typepath[128];
+	char tmptype[8];
+
+	sysfs = opendir("/sys/class/power_supply");
+	if (sysfs == 0)
+	{
+	#ifdef DEBUG
+	  printf("DBG:No acpi support for sysfs. Trying procfs...\n");
+	#endif
+	return 2;
+	}
+	
+	while ((batt = readdir(sysfs)))
+	{
+		name = batt->d_name;
+		if (!strncmp(".", name, 1)) continue;
+		/* check whether /sys/class/power_supply/$name/type exists and 
+		contains "Battery" or "Mains" */
+		sprintf(typepath, "/sys/class/power_supply/%s/type",name);
+		if(!(typefile = fopen(typepath, "r"))) continue;
+		fgets(tmptype, 8, typefile);
+		fclose(typefile);
+		if(strncmp("Battery", tmptype, 7)==0)
+		{
+			sprintf(batteries[batt_count], "/sys/class/power_supply/%s", name);
+		#ifdef DEBUG
+			printf("DBG:battery number %d at:\n",batt_count);
+			printf("DBG:sysfs dir->%s\n",batteries[batt_count]);
+			printf("DBG:------------------------\n");
+		#endif
+			batt_count++;
+		}
+		/* I guess that the type of the AC adapter is always "Mains" (?) */
+		else if(strncmp("Mains", tmptype, 5)==0){
+			sprintf(sysfsacdir, "/sys/class/power_supply/%s", name);
+		#ifdef DEBUG
+			printf("DBG:sysfs AC dir->%s\n",sysfsacdir);
+			printf("DBG:------------------------\n");
+		#endif	
+		}
+	}
+	closedir(sysfs);
+	if ( batt_count == 0 )
+	{
+#ifdef DEBUG
+	  printf("DBG:No acpi support for sysfs. Trying procfs...\n");
+#endif
+		acpi_sysfs = 0;
+		return 2;
+	}
+	else
+	{
+		acpi_sysfs = 1;
+		return 0;
+	}
+}
+
 /* see if we have ACPI support */
 int check_acpi(void)
 {
+#ifdef __linux__
+	if ( check_acpi_sysfs() == 0 )
+		return 0;
+#endif
   DIR *battdir;
   struct dirent *batt;
   char *name;
@@ -262,9 +333,82 @@
 #endif
 }
 
+int read_sysfs_int(char* filename)
+{
+	FILE* f;
+	f = fopen(filename,"r");
+	if ( !f )
+	{
+#ifdef DEBUG
+	  printf("DBG:Could not open %s\n",filename);
+#endif
+		return 0;
+	}
+	int out;
+	fscanf(f,"%d",&out);
+	fclose(f);
+	return out;
+}
+
+char* read_sysfs_string(char* filename)
+{
+	FILE* f;
+	f = fopen(filename,"r");
+	if ( !f )
+	{
+#ifdef DEBUG
+	  printf("DBG:Could not open %s\n",filename);
+#endif
+		return NULL;
+	}
+	fscanf(f,"%s",buf2);
+	fclose(f);
+	return buf2;
+}
+
+int read_acad_state_sysfs(void)
+{
+	DIR *sysfs;
+	struct dirent *propety;
+	char *name;
+	char onlinefilepath[128];
+	
+	sysfs = opendir(sysfsacdir);
+	if (sysfs == 0)
+	{
+	#ifdef DEBUG
+		printf("DBG:Can't open %s",sysfsacdir);
+	#endif
+		return 0;
+	}
+	closedir(sysfs);
+	
+	if (!acadstate) acadstate=(ACADstate *)malloc(sizeof(ACADstate));
+	/* this code doesn't make much sense.. why look at the whole directory?!
+	while ((propety = readdir(sysfs)))
+	{
+		name = propety->d_name;
+		if (!strncmp(".", name, 1) || !strncmp("..", name, 2)) continue;
+		
+		if (strcmp(name,"online") == 0)
+		{
+			acadstate->state = ( read_sysfs_int("/sys/class/power_supply/AC/online") == 1 ) ;
+		}
+	} 
+	*/
+	sprintf(onlinefilepath, "%s/online", sysfsacdir);
+	/* if onlinefilepath doesn't exist read_sysfs_int() will return 0
+	so acadstate->state will be 0, that should be ok */
+	acadstate->state = ( read_sysfs_int(onlinefilepath) == 1 );
+	
+	return acadstate->state;
+}
+
 int read_acad_state(void)
 {
 #ifdef __linux__
+	if (acpi_sysfs)
+		return read_acad_state_sysfs();
   FILE *acpi;
   char *ptr;
   char stat;
@@ -354,20 +498,83 @@
 #endif
 }
 
+int read_acpi_info_sysfs(int battery)
+{
+	DIR *sysfs;
+	struct dirent *propety;
+	char *name;
+
+	sysfs = opendir(batteries[battery]);
+	if (sysfs == 0)
+	{
+	#ifdef DEBUG
+		  printf("DBG:Can't open %s!\n", batteries[battery]);
+	#endif
+	    return 0;
+	}
+	/* malloc.. might explain the random battery level values on 2.6.24 
+	systems (energe_full is called charge_full so the value isn't initialised
+	and some random data from the heap is displayed..) 
+	if (!acpiinfo) acpiinfo=(ACPIinfo *)malloc(sizeof(ACPIinfo)); 
+	*/
+	if (!acpiinfo) acpiinfo=(ACPIinfo *)calloc(1, sizeof(ACPIinfo));
+	
+	while ((propety = readdir(sysfs)))
+	{
+		name = propety->d_name;
+		if (!strncmp(".", name, 1) || !strncmp("..", name, 2)) continue;
+		/* at least on my system this is called charge_full */
+		if ((strcmp(name,"energy_full") == 0) || (strcmp(name,"charge_full") == 0))
+		{
+			sprintf(buf,"%s/%s",batteries[battery], name);
+			acpiinfo->last_full_capacity = read_sysfs_int(buf);
+		}
+		if ((strcmp(name,"energy_full_design") == 0) || (strcmp(name,"charge_full_design") == 0))
+		{
+			sprintf(buf,"%s/%s",batteries[battery], name);
+			acpiinfo->design_capacity = read_sysfs_int(buf);
+		}
+		if (strcmp(name,"technology") == 0)
+		{
+			char *tmp;
+			sprintf(buf,"%s/%s",batteries[battery], name);
+			tmp = read_sysfs_string(buf);
+			if (tmp != NULL)
+			{
+				if (strcmp(tmp,"Li-ion") == 0)
+					acpiinfo->battery_technology = 1;
+				else
+					acpiinfo->battery_technology = 0;
+			}
+		}
+		if (strcmp(name,"present") == 0)
+		{
+			sprintf(buf,"%s/%s",batteries[battery], name);
+			acpiinfo->present = read_sysfs_int(buf);
+		}
+	}
+	closedir(sysfs);
+	return acpiinfo->present;
+}
+
 int read_acpi_info(int battery)
 {
 #ifdef __linux__
-  FILE *acpi;
-  char *ptr;
-  char stat;
-  int temp;
-
   if (battery > MAXBATT) {
 #ifdef DEBUG
 	  printf("DBG: error, battery > MAXBATT (%d)\n",MAXBATT);
 #endif
 	  return 0;
   }
+
+	if (acpi_sysfs)
+		return read_acpi_info_sysfs(battery);
+  
+	FILE *acpi;
+  char *ptr;
+  char stat;
+  int temp;
+
   if (!(acpi = fopen (battinfo[battery], "r"))) {
 #ifdef DEBUG
 	  printf("DBG:cannot open %s for read!\n",battinfo[battery]);
@@ -514,9 +721,80 @@
 
 }
 
+int read_acpi_state_sysfs(int battery)
+{
+	DIR *sysfs;
+	struct dirent *propety;
+	char *name;
+
+	sysfs = opendir(batteries[battery]);
+	if (sysfs == 0)
+	{
+	#ifdef DEBUG
+	  printf("DBG:Can't open %s!\n", batteries[battery]);
+	#endif
+	return 0;
+	}
+  
+	/* again it might be better to use calloc 
+	if (!acpistate) acpistate=(ACPIstate *)malloc(sizeof(ACPIstate));
+	*/
+	if (!acpistate) acpistate=(ACPIstate *)calloc(1, sizeof(ACPIstate));
+
+	while ((propety = readdir(sysfs)))
+	{
+		name = propety->d_name;
+		if (!strncmp(".", name, 1) || !strncmp("..", name, 2)) continue;
+		
+		if (strcmp(name,"status") == 0)
+		{
+			char *tmp;
+			sprintf(buf,"%s/%s",batteries[battery], name);
+			tmp = read_sysfs_string(buf);
+			if ( tmp != NULL )
+			{
+				if (strcmp(tmp,"Charging") == 0)
+					acpistate->state = CHARGING;
+				else if (strcmp(tmp,"Discharging") == 0)
+					acpistate->state = DISCHARGING;
+				else if (strcmp(tmp,"Full") == 0)
+					acpistate->state = POWER;
+				else
+					acpistate->state = UNKNOW;
+			}
+		}
+		/* on my system this is called charge_now */
+		if ((strcmp(name,"energy_now") == 0) || (strcmp(name,"charge_now") == 0))
+		{
+			sprintf(buf,"%s/%s",batteries[battery], name);
+			acpistate->rcapacity = read_sysfs_int(buf);
+			acpistate->percentage = (((float) acpistate->rcapacity)/acpiinfo->last_full_capacity) * 100;
+		}
+		if (strcmp(name,"current_now") == 0)
+		{
+			sprintf(buf,"%s/%s",batteries[battery], name);
+			acpistate->prate = read_sysfs_int(buf);
+			if ( acpistate->prate < 0 )
+				acpistate->prate = 0;
+			if ( acpistate->prate > 0 )
+				acpistate->rtime = (((float) acpistate->rcapacity) / acpistate->prate) * 60;
+		}
+		if (strcmp(name,"voltage_now") == 0)
+		{
+			sprintf(buf,"%s/%s",batteries[battery], name);
+			acpistate->pvoltage = read_sysfs_int(buf);
+		}
+	}
+	closedir(sysfs);
+	return acpiinfo->present;
+}
+
 int read_acpi_state(int battery)
 {
 #ifdef __linux__
+	if (acpi_sysfs)
+		return read_acpi_state_sysfs(battery);
+
   FILE *acpi;
   char *ptr;
   char stat;
diff -ru xfce4-battery-plugin-0.5.0.orig/panel-plugin/libacpi.h xfce4-battery-plugin-0.5.0-fixed/panel-plugin/libacpi.h
--- xfce4-battery-plugin-0.5.0.orig/panel-plugin/libacpi.h	2007-01-17 18:56:51.000000000 +0100
+++ xfce4-battery-plugin-0.5.0-fixed/panel-plugin/libacpi.h	2008-04-05 22:13:55.522679792 +0200
@@ -80,6 +80,8 @@
 int batt_count;
 /* temp buffer */
 char buf[512];
+char buf2[512];
+int acpi_sysfs;
 #else
 extern int batt_count;
 extern ACPIstate *acpistate;