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path: root/drivers/acpi/sbs.c
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Diffstat (limited to 'drivers/acpi/sbs.c')
-rw-r--r--drivers/acpi/sbs.c91
1 files changed, 59 insertions, 32 deletions
diff --git a/drivers/acpi/sbs.c b/drivers/acpi/sbs.c
index 90fd09c65f9..f136c7d3b3c 100644
--- a/drivers/acpi/sbs.c
+++ b/drivers/acpi/sbs.c
@@ -29,7 +29,7 @@
#include <linux/moduleparam.h>
#include <linux/kernel.h>
-#ifdef CONFIG_ACPI_PROCFS
+#ifdef CONFIG_ACPI_PROCFS_POWER
#include <linux/proc_fs.h>
#include <linux/seq_file.h>
#include <asm/uaccess.h>
@@ -40,7 +40,9 @@
#include <linux/jiffies.h>
#include <linux/delay.h>
+#ifdef CONFIG_ACPI_SYSFS_POWER
#include <linux/power_supply.h>
+#endif
#include "sbshc.h"
@@ -54,12 +56,6 @@
#define ACPI_BATTERY_DIR_NAME "BAT%i"
#define ACPI_AC_DIR_NAME "AC0"
-enum acpi_sbs_device_addr {
- ACPI_SBS_CHARGER = 0x9,
- ACPI_SBS_MANAGER = 0xa,
- ACPI_SBS_BATTERY = 0xb,
-};
-
#define ACPI_SBS_NOTIFY_STATUS 0x80
#define ACPI_SBS_NOTIFY_INFO 0x81
@@ -86,9 +82,11 @@ static const struct acpi_device_id sbs_device_ids[] = {
MODULE_DEVICE_TABLE(acpi, sbs_device_ids);
struct acpi_battery {
+#ifdef CONFIG_ACPI_SYSFS_POWER
struct power_supply bat;
+#endif
struct acpi_sbs *sbs;
-#ifdef CONFIG_ACPI_PROCFS
+#ifdef CONFIG_ACPI_PROCFS_POWER
struct proc_dir_entry *proc_entry;
#endif
unsigned long update_time;
@@ -113,16 +111,19 @@ struct acpi_battery {
u16 spec;
u8 id;
u8 present:1;
+ u8 have_sysfs_alarm:1;
};
#define to_acpi_battery(x) container_of(x, struct acpi_battery, bat);
struct acpi_sbs {
+#ifdef CONFIG_ACPI_SYSFS_POWER
struct power_supply charger;
+#endif
struct acpi_device *device;
struct acpi_smb_hc *hc;
struct mutex lock;
-#ifdef CONFIG_ACPI_PROCFS
+#ifdef CONFIG_ACPI_PROCFS_POWER
struct proc_dir_entry *charger_entry;
#endif
struct acpi_battery battery[MAX_SBS_BAT];
@@ -162,6 +163,7 @@ static inline int acpi_battery_scale(struct acpi_battery *battery)
acpi_battery_ipscale(battery);
}
+#ifdef CONFIG_ACPI_SYSFS_POWER
static int sbs_get_ac_property(struct power_supply *psy,
enum power_supply_property psp,
union power_supply_propval *val)
@@ -299,6 +301,7 @@ static enum power_supply_property sbs_energy_battery_props[] = {
POWER_SUPPLY_PROP_MODEL_NAME,
POWER_SUPPLY_PROP_MANUFACTURER,
};
+#endif
/* --------------------------------------------------------------------------
Smart Battery System Management
@@ -434,6 +437,7 @@ static int acpi_ac_get_present(struct acpi_sbs *sbs)
return result;
}
+#ifdef CONFIG_ACPI_SYSFS_POWER
static ssize_t acpi_battery_alarm_show(struct device *dev,
struct device_attribute *attr,
char *buf)
@@ -463,12 +467,13 @@ static struct device_attribute alarm_attr = {
.show = acpi_battery_alarm_show,
.store = acpi_battery_alarm_store,
};
+#endif
/* --------------------------------------------------------------------------
FS Interface (/proc/acpi)
-------------------------------------------------------------------------- */
-#ifdef CONFIG_ACPI_PROCFS
+#ifdef CONFIG_ACPI_PROCFS_POWER
/* Generic Routines */
static int
acpi_sbs_add_fs(struct proc_dir_entry **dir,
@@ -538,7 +543,7 @@ static struct proc_dir_entry *acpi_battery_dir = NULL;
static inline char *acpi_battery_units(struct acpi_battery *battery)
{
- return acpi_battery_mode(battery) ? " mWh" : " mAh";
+ return acpi_battery_mode(battery) ? " mW" : " mA";
}
@@ -555,10 +560,10 @@ static int acpi_battery_read_info(struct seq_file *seq, void *offset)
if (!battery->present)
goto end;
- seq_printf(seq, "design capacity: %i%s\n",
+ seq_printf(seq, "design capacity: %i%sh\n",
battery->design_capacity * acpi_battery_scale(battery),
acpi_battery_units(battery));
- seq_printf(seq, "last full capacity: %i%s\n",
+ seq_printf(seq, "last full capacity: %i%sh\n",
battery->full_charge_capacity * acpi_battery_scale(battery),
acpi_battery_units(battery));
seq_printf(seq, "battery technology: rechargeable\n");
@@ -589,7 +594,7 @@ static int acpi_battery_read_state(struct seq_file *seq, void *offset)
{
struct acpi_battery *battery = seq->private;
struct acpi_sbs *sbs = battery->sbs;
- int result = 0;
+ int rate;
mutex_lock(&sbs->lock);
seq_printf(seq, "present: %s\n",
@@ -603,9 +608,12 @@ static int acpi_battery_read_state(struct seq_file *seq, void *offset)
seq_printf(seq, "charging state: %s\n",
(battery->current_now < 0) ? "discharging" :
((battery->current_now > 0) ? "charging" : "charged"));
- seq_printf(seq, "present rate: %d mA\n",
- abs(battery->current_now) * acpi_battery_ipscale(battery));
- seq_printf(seq, "remaining capacity: %i%s\n",
+ rate = abs(battery->current_now) * acpi_battery_ipscale(battery);
+ rate *= (acpi_battery_mode(battery))?(battery->voltage_now *
+ acpi_battery_vscale(battery)/1000):1;
+ seq_printf(seq, "present rate: %d%s\n", rate,
+ acpi_battery_units(battery));
+ seq_printf(seq, "remaining capacity: %i%sh\n",
battery->capacity_now * acpi_battery_scale(battery),
acpi_battery_units(battery));
seq_printf(seq, "present voltage: %i mV\n",
@@ -613,7 +621,7 @@ static int acpi_battery_read_state(struct seq_file *seq, void *offset)
end:
mutex_unlock(&sbs->lock);
- return result;
+ return 0;
}
static int acpi_battery_state_open_fs(struct inode *inode, struct file *file)
@@ -637,7 +645,7 @@ static int acpi_battery_read_alarm(struct seq_file *seq, void *offset)
acpi_battery_get_alarm(battery);
seq_printf(seq, "alarm: ");
if (battery->alarm_capacity)
- seq_printf(seq, "%i%s\n",
+ seq_printf(seq, "%i%sh\n",
battery->alarm_capacity *
acpi_battery_scale(battery),
acpi_battery_units(battery));
@@ -789,12 +797,13 @@ static int acpi_battery_add(struct acpi_sbs *sbs, int id)
return result;
sprintf(battery->name, ACPI_BATTERY_DIR_NAME, id);
-#ifdef CONFIG_ACPI_PROCFS
+#ifdef CONFIG_ACPI_PROCFS_POWER
acpi_sbs_add_fs(&battery->proc_entry, acpi_battery_dir,
battery->name, &acpi_battery_info_fops,
&acpi_battery_state_fops, &acpi_battery_alarm_fops,
battery);
#endif
+#ifdef CONFIG_ACPI_SYSFS_POWER
battery->bat.name = battery->name;
battery->bat.type = POWER_SUPPLY_TYPE_BATTERY;
if (!acpi_battery_mode(battery)) {
@@ -808,7 +817,14 @@ static int acpi_battery_add(struct acpi_sbs *sbs, int id)
}
battery->bat.get_property = acpi_sbs_battery_get_property;
result = power_supply_register(&sbs->device->dev, &battery->bat);
- device_create_file(battery->bat.dev, &alarm_attr);
+ if (result)
+ goto end;
+ result = device_create_file(battery->bat.dev, &alarm_attr);
+ if (result)
+ goto end;
+ battery->have_sysfs_alarm = 1;
+ end:
+#endif
printk(KERN_INFO PREFIX "%s [%s]: Battery Slot [%s] (battery %s)\n",
ACPI_SBS_DEVICE_NAME, acpi_device_bid(sbs->device),
battery->name, sbs->battery->present ? "present" : "absent");
@@ -817,15 +833,18 @@ static int acpi_battery_add(struct acpi_sbs *sbs, int id)
static void acpi_battery_remove(struct acpi_sbs *sbs, int id)
{
- if (sbs->battery[id].bat.dev)
- device_remove_file(sbs->battery[id].bat.dev, &alarm_attr);
- power_supply_unregister(&sbs->battery[id].bat);
-#ifdef CONFIG_ACPI_PROCFS
- if (sbs->battery[id].proc_entry) {
- acpi_sbs_remove_fs(&(sbs->battery[id].proc_entry),
- acpi_battery_dir);
+ struct acpi_battery *battery = &sbs->battery[id];
+#ifdef CONFIG_ACPI_SYSFS_POWER
+ if (battery->bat.dev) {
+ if (battery->have_sysfs_alarm)
+ device_remove_file(battery->bat.dev, &alarm_attr);
+ power_supply_unregister(&battery->bat);
}
#endif
+#ifdef CONFIG_ACPI_PROCFS_POWER
+ if (battery->proc_entry)
+ acpi_sbs_remove_fs(&battery->proc_entry, acpi_battery_dir);
+#endif
}
static int acpi_charger_add(struct acpi_sbs *sbs)
@@ -835,19 +854,21 @@ static int acpi_charger_add(struct acpi_sbs *sbs)
result = acpi_ac_get_present(sbs);
if (result)
goto end;
-#ifdef CONFIG_ACPI_PROCFS
+#ifdef CONFIG_ACPI_PROCFS_POWER
result = acpi_sbs_add_fs(&sbs->charger_entry, acpi_ac_dir,
ACPI_AC_DIR_NAME, NULL,
&acpi_ac_state_fops, NULL, sbs);
if (result)
goto end;
#endif
+#ifdef CONFIG_ACPI_SYSFS_POWER
sbs->charger.name = "sbs-charger";
sbs->charger.type = POWER_SUPPLY_TYPE_MAINS;
sbs->charger.properties = sbs_ac_props;
sbs->charger.num_properties = ARRAY_SIZE(sbs_ac_props);
sbs->charger.get_property = sbs_get_ac_property;
power_supply_register(&sbs->device->dev, &sbs->charger);
+#endif
printk(KERN_INFO PREFIX "%s [%s]: AC Adapter [%s] (%s)\n",
ACPI_SBS_DEVICE_NAME, acpi_device_bid(sbs->device),
ACPI_AC_DIR_NAME, sbs->charger_present ? "on-line" : "off-line");
@@ -857,9 +878,11 @@ static int acpi_charger_add(struct acpi_sbs *sbs)
static void acpi_charger_remove(struct acpi_sbs *sbs)
{
+#ifdef CONFIG_ACPI_SYSFS_POWER
if (sbs->charger.dev)
power_supply_unregister(&sbs->charger);
-#ifdef CONFIG_ACPI_PROCFS
+#endif
+#ifdef CONFIG_ACPI_PROCFS_POWER
if (sbs->charger_entry)
acpi_sbs_remove_fs(&sbs->charger_entry, acpi_ac_dir);
#endif
@@ -879,7 +902,9 @@ void acpi_sbs_callback(void *context)
ACPI_SBS_NOTIFY_STATUS,
sbs->charger_present);
#endif
+#ifdef CONFIG_ACPI_SYSFS_POWER
kobject_uevent(&sbs->charger.dev->kobj, KOBJ_CHANGE);
+#endif
}
if (sbs->manager_present) {
for (id = 0; id < MAX_SBS_BAT; ++id) {
@@ -896,7 +921,9 @@ void acpi_sbs_callback(void *context)
ACPI_SBS_NOTIFY_STATUS,
bat->present);
#endif
+#ifdef CONFIG_ACPI_SYSFS_POWER
kobject_uevent(&bat->bat.dev->kobj, KOBJ_CHANGE);
+#endif
}
}
}
@@ -965,7 +992,7 @@ static int acpi_sbs_remove(struct acpi_device *device, int type)
static void acpi_sbs_rmdirs(void)
{
-#ifdef CONFIG_ACPI_PROCFS
+#ifdef CONFIG_ACPI_PROCFS_POWER
if (acpi_ac_dir) {
acpi_unlock_ac_dir(acpi_ac_dir);
acpi_ac_dir = NULL;
@@ -1004,7 +1031,7 @@ static int __init acpi_sbs_init(void)
if (acpi_disabled)
return -ENODEV;
-#ifdef CONFIG_ACPI_PROCFS
+#ifdef CONFIG_ACPI_PROCFS_POWER
acpi_ac_dir = acpi_lock_ac_dir();
if (!acpi_ac_dir)
return -ENODEV;
generated by cgit v1.2.3 (git 2.25.1) at 2024-12-19 21:02:52 +0000