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ACPI: Make sysfs interface in ACPI power optional.

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Reference: http://bugzilla.kernel.org/show_bug.cgi?id=9494

Signed-off-by: Alexey Starikovskiy <astarikovskiy@suse.de>
Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Alexey Starikovskiy 2008-01-01 14:27:24 -05:00 committed by Len Brown
parent e697789d64
commit 97749cd9ad
4 changed files with 67 additions and 12 deletions
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9
drivers/acpi/Kconfig
View file

@ -82,6 +82,12 @@ config ACPI_PROCFS_POWER
and functions, which do not yet exist in /sys and functions, which do not yet exist in /sys
Say N to delete power /proc/acpi/ folders that have moved to /sys/ Say N to delete power /proc/acpi/ folders that have moved to /sys/
config ACPI_SYSFS_POWER
bool "Future power /sys interface"
select POWER_SUPPLY
default y
---help---
Say N to disable power /sys interface
config ACPI_PROC_EVENT config ACPI_PROC_EVENT
bool "Deprecated /proc/acpi/event support" bool "Deprecated /proc/acpi/event support"
depends on PROC_FS depends on PROC_FS
@ -103,7 +109,6 @@ config ACPI_PROC_EVENT
config ACPI_AC config ACPI_AC
tristate "AC Adapter" tristate "AC Adapter"
depends on X86 depends on X86
select POWER_SUPPLY
default y default y
help help
This driver adds support for the AC Adapter object, which indicates This driver adds support for the AC Adapter object, which indicates
@ -113,7 +118,6 @@ config ACPI_AC
config ACPI_BATTERY config ACPI_BATTERY
tristate "Battery" tristate "Battery"
depends on X86 depends on X86
select POWER_SUPPLY
default y default y
help help
This driver adds support for battery information through This driver adds support for battery information through
@ -368,7 +372,6 @@ config ACPI_HOTPLUG_MEMORY
config ACPI_SBS config ACPI_SBS
tristate "Smart Battery System" tristate "Smart Battery System"
depends on X86 depends on X86
select POWER_SUPPLY
help help
This driver adds support for the Smart Battery System, another This driver adds support for the Smart Battery System, another
type of access to battery information, found on some laptops. type of access to battery information, found on some laptops.

16
drivers/acpi/ac.c
View file

@ -31,7 +31,9 @@
#include <linux/proc_fs.h> #include <linux/proc_fs.h>
#include <linux/seq_file.h> #include <linux/seq_file.h>
#endif #endif
#ifdef CONFIG_ACPI_SYSFS_POWER
#include <linux/power_supply.h> #include <linux/power_supply.h>
#endif
#include <acpi/acpi_bus.h> #include <acpi/acpi_bus.h>
#include <acpi/acpi_drivers.h> #include <acpi/acpi_drivers.h>
@ -79,7 +81,9 @@ static struct acpi_driver acpi_ac_driver = {
}; };
struct acpi_ac { struct acpi_ac {
#ifdef CONFIG_ACPI_SYSFS_POWER
struct power_supply charger; struct power_supply charger;
#endif
struct acpi_device * device; struct acpi_device * device;
unsigned long state; unsigned long state;
}; };
@ -94,7 +98,7 @@ static const struct file_operations acpi_ac_fops = {
.release = single_release, .release = single_release,
}; };
#endif #endif
#ifdef CONFIG_ACPI_SYSFS_POWER
static int get_ac_property(struct power_supply *psy, static int get_ac_property(struct power_supply *psy,
enum power_supply_property psp, enum power_supply_property psp,
union power_supply_propval *val) union power_supply_propval *val)
@ -113,7 +117,7 @@ static int get_ac_property(struct power_supply *psy,
static enum power_supply_property ac_props[] = { static enum power_supply_property ac_props[] = {
POWER_SUPPLY_PROP_ONLINE, POWER_SUPPLY_PROP_ONLINE,
}; };
#endif
/* -------------------------------------------------------------------------- /* --------------------------------------------------------------------------
AC Adapter Management AC Adapter Management
-------------------------------------------------------------------------- */ -------------------------------------------------------------------------- */
@ -241,7 +245,9 @@ static void acpi_ac_notify(acpi_handle handle, u32 event, void *data)
acpi_bus_generate_netlink_event(device->pnp.device_class, acpi_bus_generate_netlink_event(device->pnp.device_class,
device->dev.bus_id, event, device->dev.bus_id, event,
(u32) ac->state); (u32) ac->state);
#ifdef CONFIG_ACPI_SYSFS_POWER
kobject_uevent(&ac->charger.dev->kobj, KOBJ_CHANGE); kobject_uevent(&ac->charger.dev->kobj, KOBJ_CHANGE);
#endif
break; break;
default: default:
ACPI_DEBUG_PRINT((ACPI_DB_INFO, ACPI_DEBUG_PRINT((ACPI_DB_INFO,
@ -280,12 +286,14 @@ static int acpi_ac_add(struct acpi_device *device)
#endif #endif
if (result) if (result)
goto end; goto end;
#ifdef CONFIG_ACPI_SYSFS_POWER
ac->charger.name = acpi_device_bid(device); ac->charger.name = acpi_device_bid(device);
ac->charger.type = POWER_SUPPLY_TYPE_MAINS; ac->charger.type = POWER_SUPPLY_TYPE_MAINS;
ac->charger.properties = ac_props; ac->charger.properties = ac_props;
ac->charger.num_properties = ARRAY_SIZE(ac_props); ac->charger.num_properties = ARRAY_SIZE(ac_props);
ac->charger.get_property = get_ac_property; ac->charger.get_property = get_ac_property;
power_supply_register(&ac->device->dev, &ac->charger); power_supply_register(&ac->device->dev, &ac->charger);
#endif
status = acpi_install_notify_handler(device->handle, status = acpi_install_notify_handler(device->handle,
ACPI_ALL_NOTIFY, acpi_ac_notify, ACPI_ALL_NOTIFY, acpi_ac_notify,
ac); ac);
@ -319,8 +327,10 @@ static int acpi_ac_resume(struct acpi_device *device)
old_state = ac->state; old_state = ac->state;
if (acpi_ac_get_state(ac)) if (acpi_ac_get_state(ac))
return 0; return 0;
#ifdef CONFIG_ACPI_SYSFS_POWER
if (old_state != ac->state) if (old_state != ac->state)
kobject_uevent(&ac->charger.dev->kobj, KOBJ_CHANGE); kobject_uevent(&ac->charger.dev->kobj, KOBJ_CHANGE);
#endif
return 0; return 0;
} }
@ -337,8 +347,10 @@ static int acpi_ac_remove(struct acpi_device *device, int type)
status = acpi_remove_notify_handler(device->handle, status = acpi_remove_notify_handler(device->handle,
ACPI_ALL_NOTIFY, acpi_ac_notify); ACPI_ALL_NOTIFY, acpi_ac_notify);
#ifdef CONFIG_ACPI_SYSFS_POWER
if (ac->charger.dev) if (ac->charger.dev)
power_supply_unregister(&ac->charger); power_supply_unregister(&ac->charger);
#endif
#ifdef CONFIG_ACPI_PROCFS_POWER #ifdef CONFIG_ACPI_PROCFS_POWER
acpi_ac_remove_fs(device); acpi_ac_remove_fs(device);
#endif #endif

31
drivers/acpi/battery.c
View file

@ -40,7 +40,9 @@
#include <acpi/acpi_bus.h> #include <acpi/acpi_bus.h>
#include <acpi/acpi_drivers.h> #include <acpi/acpi_drivers.h>
#ifdef CONFIG_ACPI_SYSFS_POWER
#include <linux/power_supply.h> #include <linux/power_supply.h>
#endif
#define ACPI_BATTERY_VALUE_UNKNOWN 0xFFFFFFFF #define ACPI_BATTERY_VALUE_UNKNOWN 0xFFFFFFFF
@ -86,7 +88,9 @@ MODULE_DEVICE_TABLE(acpi, battery_device_ids);
struct acpi_battery { struct acpi_battery {
struct mutex lock; struct mutex lock;
#ifdef CONFIG_ACPI_SYSFS_POWER
struct power_supply bat; struct power_supply bat;
#endif
struct acpi_device *device; struct acpi_device *device;
unsigned long update_time; unsigned long update_time;
int current_now; int current_now;
@ -117,6 +121,7 @@ inline int acpi_battery_present(struct acpi_battery *battery)
return battery->device->status.battery_present; return battery->device->status.battery_present;
} }
#ifdef CONFIG_ACPI_SYSFS_POWER
static int acpi_battery_technology(struct acpi_battery *battery) static int acpi_battery_technology(struct acpi_battery *battery)
{ {
if (!strcasecmp("NiCd", battery->type)) if (!strcasecmp("NiCd", battery->type))
@ -222,6 +227,7 @@ static enum power_supply_property energy_battery_props[] = {
POWER_SUPPLY_PROP_MODEL_NAME, POWER_SUPPLY_PROP_MODEL_NAME,
POWER_SUPPLY_PROP_MANUFACTURER, POWER_SUPPLY_PROP_MANUFACTURER,
}; };
#endif
#ifdef CONFIG_ACPI_PROCFS_POWER #ifdef CONFIG_ACPI_PROCFS_POWER
inline char *acpi_battery_units(struct acpi_battery *battery) inline char *acpi_battery_units(struct acpi_battery *battery)
@ -398,6 +404,7 @@ static int acpi_battery_init_alarm(struct acpi_battery *battery)
return acpi_battery_set_alarm(battery); return acpi_battery_set_alarm(battery);
} }
#ifdef CONFIG_ACPI_SYSFS_POWER
static ssize_t acpi_battery_alarm_show(struct device *dev, static ssize_t acpi_battery_alarm_show(struct device *dev,
struct device_attribute *attr, struct device_attribute *attr,
char *buf) char *buf)
@ -429,11 +436,6 @@ static int sysfs_add_battery(struct acpi_battery *battery)
{ {
int result; int result;
battery->update_time = 0;
result = acpi_battery_get_info(battery);
acpi_battery_init_alarm(battery);
if (result)
return result;
if (battery->power_unit) { if (battery->power_unit) {
battery->bat.properties = charge_battery_props; battery->bat.properties = charge_battery_props;
battery->bat.num_properties = battery->bat.num_properties =
@ -462,18 +464,31 @@ static void sysfs_remove_battery(struct acpi_battery *battery)
power_supply_unregister(&battery->bat); power_supply_unregister(&battery->bat);
battery->bat.dev = NULL; battery->bat.dev = NULL;
} }
#endif
static int acpi_battery_update(struct acpi_battery *battery) static int acpi_battery_update(struct acpi_battery *battery)
{ {
int result = acpi_battery_get_status(battery); int result;
result = acpi_battery_get_status(battery);
if (result) if (result)
return result; return result;
#ifdef CONFIG_ACPI_SYSFS_POWER
if (!acpi_battery_present(battery)) { if (!acpi_battery_present(battery)) {
sysfs_remove_battery(battery); sysfs_remove_battery(battery);
battery->update_time = 0;
return 0; return 0;
} }
#endif
if (!battery->update_time) {
result = acpi_battery_get_info(battery);
if (result)
return result;
acpi_battery_init_alarm(battery);
}
#ifdef CONFIG_ACPI_SYSFS_POWER
if (!battery->bat.dev) if (!battery->bat.dev)
sysfs_add_battery(battery); sysfs_add_battery(battery);
#endif
return acpi_battery_get_state(battery); return acpi_battery_get_state(battery);
} }
@ -767,9 +782,11 @@ static void acpi_battery_notify(acpi_handle handle, u32 event, void *data)
acpi_bus_generate_netlink_event(device->pnp.device_class, acpi_bus_generate_netlink_event(device->pnp.device_class,
device->dev.bus_id, event, device->dev.bus_id, event,
acpi_battery_present(battery)); acpi_battery_present(battery));
#ifdef CONFIG_ACPI_SYSFS_POWER
/* acpi_batter_update could remove power_supply object */ /* acpi_batter_update could remove power_supply object */
if (battery->bat.dev) if (battery->bat.dev)
kobject_uevent(&battery->bat.dev->kobj, KOBJ_CHANGE); kobject_uevent(&battery->bat.dev->kobj, KOBJ_CHANGE);
#endif
} }
static int acpi_battery_add(struct acpi_device *device) static int acpi_battery_add(struct acpi_device *device)
@ -828,7 +845,9 @@ static int acpi_battery_remove(struct acpi_device *device, int type)
#ifdef CONFIG_ACPI_PROCFS_POWER #ifdef CONFIG_ACPI_PROCFS_POWER
acpi_battery_remove_fs(device); acpi_battery_remove_fs(device);
#endif #endif
#ifdef CONFIG_ACPI_SYSFS_POWER
sysfs_remove_battery(battery); sysfs_remove_battery(battery);
#endif
mutex_destroy(&battery->lock); mutex_destroy(&battery->lock);
kfree(battery); kfree(battery);
return 0; return 0;

23
drivers/acpi/sbs.c
View file

@ -40,7 +40,9 @@
#include <linux/jiffies.h> #include <linux/jiffies.h>
#include <linux/delay.h> #include <linux/delay.h>
#ifdef CONFIG_ACPI_SYSFS_POWER
#include <linux/power_supply.h> #include <linux/power_supply.h>
#endif
#include "sbshc.h" #include "sbshc.h"
@ -80,7 +82,9 @@ static const struct acpi_device_id sbs_device_ids[] = {
MODULE_DEVICE_TABLE(acpi, sbs_device_ids); MODULE_DEVICE_TABLE(acpi, sbs_device_ids);
struct acpi_battery { struct acpi_battery {
#ifdef CONFIG_ACPI_SYSFS_POWER
struct power_supply bat; struct power_supply bat;
#endif
struct acpi_sbs *sbs; struct acpi_sbs *sbs;
#ifdef CONFIG_ACPI_PROCFS_POWER #ifdef CONFIG_ACPI_PROCFS_POWER
struct proc_dir_entry *proc_entry; struct proc_dir_entry *proc_entry;
@ -113,7 +117,9 @@ struct acpi_battery {
#define to_acpi_battery(x) container_of(x, struct acpi_battery, bat); #define to_acpi_battery(x) container_of(x, struct acpi_battery, bat);
struct acpi_sbs { struct acpi_sbs {
#ifdef CONFIG_ACPI_SYSFS_POWER
struct power_supply charger; struct power_supply charger;
#endif
struct acpi_device *device; struct acpi_device *device;
struct acpi_smb_hc *hc; struct acpi_smb_hc *hc;
struct mutex lock; struct mutex lock;
@ -157,6 +163,7 @@ static inline int acpi_battery_scale(struct acpi_battery *battery)
acpi_battery_ipscale(battery); acpi_battery_ipscale(battery);
} }
#ifdef CONFIG_ACPI_SYSFS_POWER
static int sbs_get_ac_property(struct power_supply *psy, static int sbs_get_ac_property(struct power_supply *psy,
enum power_supply_property psp, enum power_supply_property psp,
union power_supply_propval *val) union power_supply_propval *val)
@ -294,6 +301,7 @@ static enum power_supply_property sbs_energy_battery_props[] = {
POWER_SUPPLY_PROP_MODEL_NAME, POWER_SUPPLY_PROP_MODEL_NAME,
POWER_SUPPLY_PROP_MANUFACTURER, POWER_SUPPLY_PROP_MANUFACTURER,
}; };
#endif
/* -------------------------------------------------------------------------- /* --------------------------------------------------------------------------
Smart Battery System Management Smart Battery System Management
@ -429,6 +437,7 @@ static int acpi_ac_get_present(struct acpi_sbs *sbs)
return result; return result;
} }
#ifdef CONFIG_ACPI_SYSFS_POWER
static ssize_t acpi_battery_alarm_show(struct device *dev, static ssize_t acpi_battery_alarm_show(struct device *dev,
struct device_attribute *attr, struct device_attribute *attr,
char *buf) char *buf)
@ -458,6 +467,7 @@ static struct device_attribute alarm_attr = {
.show = acpi_battery_alarm_show, .show = acpi_battery_alarm_show,
.store = acpi_battery_alarm_store, .store = acpi_battery_alarm_store,
}; };
#endif
/* -------------------------------------------------------------------------- /* --------------------------------------------------------------------------
FS Interface (/proc/acpi) FS Interface (/proc/acpi)
@ -793,6 +803,7 @@ static int acpi_battery_add(struct acpi_sbs *sbs, int id)
&acpi_battery_state_fops, &acpi_battery_alarm_fops, &acpi_battery_state_fops, &acpi_battery_alarm_fops,
battery); battery);
#endif #endif
#ifdef CONFIG_ACPI_SYSFS_POWER
battery->bat.name = battery->name; battery->bat.name = battery->name;
battery->bat.type = POWER_SUPPLY_TYPE_BATTERY; battery->bat.type = POWER_SUPPLY_TYPE_BATTERY;
if (!acpi_battery_mode(battery)) { if (!acpi_battery_mode(battery)) {
@ -813,6 +824,7 @@ static int acpi_battery_add(struct acpi_sbs *sbs, int id)
goto end; goto end;
battery->have_sysfs_alarm = 1; battery->have_sysfs_alarm = 1;
end: end:
#endif
printk(KERN_INFO PREFIX "%s [%s]: Battery Slot [%s] (battery %s)\n", printk(KERN_INFO PREFIX "%s [%s]: Battery Slot [%s] (battery %s)\n",
ACPI_SBS_DEVICE_NAME, acpi_device_bid(sbs->device), ACPI_SBS_DEVICE_NAME, acpi_device_bid(sbs->device),
battery->name, sbs->battery->present ? "present" : "absent"); battery->name, sbs->battery->present ? "present" : "absent");
@ -822,12 +834,13 @@ static int acpi_battery_add(struct acpi_sbs *sbs, int id)
static void acpi_battery_remove(struct acpi_sbs *sbs, int id) static void acpi_battery_remove(struct acpi_sbs *sbs, int id)
{ {
struct acpi_battery *battery = &sbs->battery[id]; struct acpi_battery *battery = &sbs->battery[id];
#ifdef CONFIG_ACPI_SYSFS_POWER
if (battery->bat.dev) { if (battery->bat.dev) {
if (battery->have_sysfs_alarm) if (battery->have_sysfs_alarm)
device_remove_file(battery->bat.dev, &alarm_attr); device_remove_file(battery->bat.dev, &alarm_attr);
power_supply_unregister(&battery->bat); power_supply_unregister(&battery->bat);
} }
#endif
#ifdef CONFIG_ACPI_PROCFS_POWER #ifdef CONFIG_ACPI_PROCFS_POWER
if (battery->proc_entry) if (battery->proc_entry)
acpi_sbs_remove_fs(&battery->proc_entry, acpi_battery_dir); acpi_sbs_remove_fs(&battery->proc_entry, acpi_battery_dir);
@ -848,12 +861,14 @@ static int acpi_charger_add(struct acpi_sbs *sbs)
if (result) if (result)
goto end; goto end;
#endif #endif
#ifdef CONFIG_ACPI_SYSFS_POWER
sbs->charger.name = "sbs-charger"; sbs->charger.name = "sbs-charger";
sbs->charger.type = POWER_SUPPLY_TYPE_MAINS; sbs->charger.type = POWER_SUPPLY_TYPE_MAINS;
sbs->charger.properties = sbs_ac_props; sbs->charger.properties = sbs_ac_props;
sbs->charger.num_properties = ARRAY_SIZE(sbs_ac_props); sbs->charger.num_properties = ARRAY_SIZE(sbs_ac_props);
sbs->charger.get_property = sbs_get_ac_property; sbs->charger.get_property = sbs_get_ac_property;
power_supply_register(&sbs->device->dev, &sbs->charger); power_supply_register(&sbs->device->dev, &sbs->charger);
#endif
printk(KERN_INFO PREFIX "%s [%s]: AC Adapter [%s] (%s)\n", printk(KERN_INFO PREFIX "%s [%s]: AC Adapter [%s] (%s)\n",
ACPI_SBS_DEVICE_NAME, acpi_device_bid(sbs->device), ACPI_SBS_DEVICE_NAME, acpi_device_bid(sbs->device),
ACPI_AC_DIR_NAME, sbs->charger_present ? "on-line" : "off-line"); ACPI_AC_DIR_NAME, sbs->charger_present ? "on-line" : "off-line");
@ -863,8 +878,10 @@ static int acpi_charger_add(struct acpi_sbs *sbs)
static void acpi_charger_remove(struct acpi_sbs *sbs) static void acpi_charger_remove(struct acpi_sbs *sbs)
{ {
#ifdef CONFIG_ACPI_SYSFS_POWER
if (sbs->charger.dev) if (sbs->charger.dev)
power_supply_unregister(&sbs->charger); power_supply_unregister(&sbs->charger);
#endif
#ifdef CONFIG_ACPI_PROCFS_POWER #ifdef CONFIG_ACPI_PROCFS_POWER
if (sbs->charger_entry) if (sbs->charger_entry)
acpi_sbs_remove_fs(&sbs->charger_entry, acpi_ac_dir); acpi_sbs_remove_fs(&sbs->charger_entry, acpi_ac_dir);
@ -885,7 +902,9 @@ void acpi_sbs_callback(void *context)
ACPI_SBS_NOTIFY_STATUS, ACPI_SBS_NOTIFY_STATUS,
sbs->charger_present); sbs->charger_present);
#endif #endif
#ifdef CONFIG_ACPI_SYSFS_POWER
kobject_uevent(&sbs->charger.dev->kobj, KOBJ_CHANGE); kobject_uevent(&sbs->charger.dev->kobj, KOBJ_CHANGE);
#endif
} }
if (sbs->manager_present) { if (sbs->manager_present) {
for (id = 0; id < MAX_SBS_BAT; ++id) { for (id = 0; id < MAX_SBS_BAT; ++id) {
@ -902,7 +921,9 @@ void acpi_sbs_callback(void *context)
ACPI_SBS_NOTIFY_STATUS, ACPI_SBS_NOTIFY_STATUS,
bat->present); bat->present);
#endif #endif
#ifdef CONFIG_ACPI_SYSFS_POWER
kobject_uevent(&bat->bat.dev->kobj, KOBJ_CHANGE); kobject_uevent(&bat->bat.dev->kobj, KOBJ_CHANGE);
#endif
} }
} }
} }