#include <acpi/acpi_bus.h>
#include <acpi/acpi_drivers.h>
-
#define ACPI_BATTERY_VALUE_UNKNOWN 0xFFFFFFFF
#define ACPI_BATTERY_FORMAT_BIF "NNNNNNNNNSSSS"
#define ACPI_BATTERY_UNITS_WATTS "mW"
#define ACPI_BATTERY_UNITS_AMPS "mA"
-
#define _COMPONENT ACPI_BATTERY_COMPONENT
-ACPI_MODULE_NAME ("acpi_battery")
+ACPI_MODULE_NAME("acpi_battery")
-MODULE_AUTHOR("Paul Diefenbaugh");
+ MODULE_AUTHOR("Paul Diefenbaugh");
MODULE_DESCRIPTION(ACPI_BATTERY_DRIVER_NAME);
MODULE_LICENSE("GPL");
-static int acpi_battery_add (struct acpi_device *device);
-static int acpi_battery_remove (struct acpi_device *device, int type);
+static int acpi_battery_add(struct acpi_device *device);
+static int acpi_battery_remove(struct acpi_device *device, int type);
static struct acpi_driver acpi_battery_driver = {
- .name = ACPI_BATTERY_DRIVER_NAME,
- .class = ACPI_BATTERY_CLASS,
- .ids = ACPI_BATTERY_HID,
- .ops = {
- .add = acpi_battery_add,
- .remove = acpi_battery_remove,
- },
+ .name = ACPI_BATTERY_DRIVER_NAME,
+ .class = ACPI_BATTERY_CLASS,
+ .ids = ACPI_BATTERY_HID,
+ .ops = {
+ .add = acpi_battery_add,
+ .remove = acpi_battery_remove,
+ },
};
struct acpi_battery_status {
- acpi_integer state;
- acpi_integer present_rate;
- acpi_integer remaining_capacity;
- acpi_integer present_voltage;
+ acpi_integer state;
+ acpi_integer present_rate;
+ acpi_integer remaining_capacity;
+ acpi_integer present_voltage;
};
struct acpi_battery_info {
- acpi_integer power_unit;
- acpi_integer design_capacity;
- acpi_integer last_full_capacity;
- acpi_integer battery_technology;
- acpi_integer design_voltage;
- acpi_integer design_capacity_warning;
- acpi_integer design_capacity_low;
- acpi_integer battery_capacity_granularity_1;
- acpi_integer battery_capacity_granularity_2;
- acpi_string model_number;
- acpi_string serial_number;
- acpi_string battery_type;
- acpi_string oem_info;
+ acpi_integer power_unit;
+ acpi_integer design_capacity;
+ acpi_integer last_full_capacity;
+ acpi_integer battery_technology;
+ acpi_integer design_voltage;
+ acpi_integer design_capacity_warning;
+ acpi_integer design_capacity_low;
+ acpi_integer battery_capacity_granularity_1;
+ acpi_integer battery_capacity_granularity_2;
+ acpi_string model_number;
+ acpi_string serial_number;
+ acpi_string battery_type;
+ acpi_string oem_info;
};
struct acpi_battery_flags {
- u8 present:1; /* Bay occupied? */
- u8 power_unit:1; /* 0=watts, 1=apms */
- u8 alarm:1; /* _BTP present? */
- u8 reserved:5;
+ u8 present:1; /* Bay occupied? */
+ u8 power_unit:1; /* 0=watts, 1=apms */
+ u8 alarm:1; /* _BTP present? */
+ u8 reserved:5;
};
struct acpi_battery_trips {
- unsigned long warning;
- unsigned long low;
+ unsigned long warning;
+ unsigned long low;
};
struct acpi_battery {
- acpi_handle handle;
+ acpi_handle handle;
struct acpi_battery_flags flags;
struct acpi_battery_trips trips;
- unsigned long alarm;
+ unsigned long alarm;
struct acpi_battery_info *info;
};
-
/* --------------------------------------------------------------------------
Battery Management
-------------------------------------------------------------------------- */
static int
-acpi_battery_get_info (
- struct acpi_battery *battery,
- struct acpi_battery_info **bif)
+acpi_battery_get_info(struct acpi_battery *battery,
+ struct acpi_battery_info **bif)
{
- int result = 0;
- acpi_status status = 0;
- struct acpi_buffer buffer = {ACPI_ALLOCATE_BUFFER, NULL};
- struct acpi_buffer format = {sizeof(ACPI_BATTERY_FORMAT_BIF),
- ACPI_BATTERY_FORMAT_BIF};
- struct acpi_buffer data = {0, NULL};
- union acpi_object *package = NULL;
+ int result = 0;
+ acpi_status status = 0;
+ struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
+ struct acpi_buffer format = { sizeof(ACPI_BATTERY_FORMAT_BIF),
+ ACPI_BATTERY_FORMAT_BIF
+ };
+ struct acpi_buffer data = { 0, NULL };
+ union acpi_object *package = NULL;
ACPI_FUNCTION_TRACE("acpi_battery_get_info");
return_VALUE(-ENODEV);
}
- package = (union acpi_object *) buffer.pointer;
+ package = (union acpi_object *)buffer.pointer;
/* Extract Package Data */
goto end;
}
-end:
+ end:
acpi_os_free(buffer.pointer);
if (!result)
- (*bif) = (struct acpi_battery_info *) data.pointer;
+ (*bif) = (struct acpi_battery_info *)data.pointer;
return_VALUE(result);
}
static int
-acpi_battery_get_status (
- struct acpi_battery *battery,
- struct acpi_battery_status **bst)
+acpi_battery_get_status(struct acpi_battery *battery,
+ struct acpi_battery_status **bst)
{
- int result = 0;
- acpi_status status = 0;
- struct acpi_buffer buffer = {ACPI_ALLOCATE_BUFFER, NULL};
- struct acpi_buffer format = {sizeof(ACPI_BATTERY_FORMAT_BST),
- ACPI_BATTERY_FORMAT_BST};
- struct acpi_buffer data = {0, NULL};
- union acpi_object *package = NULL;
+ int result = 0;
+ acpi_status status = 0;
+ struct acpi_buffer buffer = { ACPI_ALLOCATE_BUFFER, NULL };
+ struct acpi_buffer format = { sizeof(ACPI_BATTERY_FORMAT_BST),
+ ACPI_BATTERY_FORMAT_BST
+ };
+ struct acpi_buffer data = { 0, NULL };
+ union acpi_object *package = NULL;
ACPI_FUNCTION_TRACE("acpi_battery_get_status");
return_VALUE(-ENODEV);
}
- package = (union acpi_object *) buffer.pointer;
+ package = (union acpi_object *)buffer.pointer;
/* Extract Package Data */
goto end;
}
-end:
+ end:
acpi_os_free(buffer.pointer);
if (!result)
- (*bst) = (struct acpi_battery_status *) data.pointer;
+ (*bst) = (struct acpi_battery_status *)data.pointer;
return_VALUE(result);
}
-
static int
-acpi_battery_set_alarm (
- struct acpi_battery *battery,
- unsigned long alarm)
+acpi_battery_set_alarm(struct acpi_battery *battery, unsigned long alarm)
{
- acpi_status status = 0;
- union acpi_object arg0 = {ACPI_TYPE_INTEGER};
- struct acpi_object_list arg_list = {1, &arg0};
+ acpi_status status = 0;
+ union acpi_object arg0 = { ACPI_TYPE_INTEGER };
+ struct acpi_object_list arg_list = { 1, &arg0 };
ACPI_FUNCTION_TRACE("acpi_battery_set_alarm");
return_VALUE(0);
}
-
-static int
-acpi_battery_check (
- struct acpi_battery *battery)
+static int acpi_battery_check(struct acpi_battery *battery)
{
- int result = 0;
- acpi_status status = AE_OK;
- acpi_handle handle = NULL;
- struct acpi_device *device = NULL;
+ int result = 0;
+ acpi_status status = AE_OK;
+ acpi_handle handle = NULL;
+ struct acpi_device *device = NULL;
struct acpi_battery_info *bif = NULL;
ACPI_FUNCTION_TRACE("acpi_battery_check");
-
+
if (!battery)
return_VALUE(-EINVAL);
return_VALUE(result);
}
-
/* --------------------------------------------------------------------------
FS Interface (/proc)
-------------------------------------------------------------------------- */
-static struct proc_dir_entry *acpi_battery_dir;
+static struct proc_dir_entry *acpi_battery_dir;
static int acpi_battery_read_info(struct seq_file *seq, void *offset)
{
- int result = 0;
- struct acpi_battery *battery = (struct acpi_battery *) seq->private;
+ int result = 0;
+ struct acpi_battery *battery = (struct acpi_battery *)seq->private;
struct acpi_battery_info *bif = NULL;
- char *units = "?";
+ char *units = "?";
ACPI_FUNCTION_TRACE("acpi_battery_read_info");
goto end;
}
- units = bif->power_unit ? ACPI_BATTERY_UNITS_AMPS : ACPI_BATTERY_UNITS_WATTS;
-
+ units =
+ bif->
+ power_unit ? ACPI_BATTERY_UNITS_AMPS : ACPI_BATTERY_UNITS_WATTS;
+
if (bif->design_capacity == ACPI_BATTERY_VALUE_UNKNOWN)
seq_printf(seq, "design capacity: unknown\n");
else
seq_printf(seq, "design capacity: %d %sh\n",
- (u32) bif->design_capacity, units);
+ (u32) bif->design_capacity, units);
if (bif->last_full_capacity == ACPI_BATTERY_VALUE_UNKNOWN)
seq_printf(seq, "last full capacity: unknown\n");
else
seq_printf(seq, "last full capacity: %d %sh\n",
- (u32) bif->last_full_capacity, units);
+ (u32) bif->last_full_capacity, units);
switch ((u32) bif->battery_technology) {
case 0:
seq_printf(seq, "design voltage: unknown\n");
else
seq_printf(seq, "design voltage: %d mV\n",
- (u32) bif->design_voltage);
-
+ (u32) bif->design_voltage);
+
seq_printf(seq, "design capacity warning: %d %sh\n",
- (u32) bif->design_capacity_warning, units);
+ (u32) bif->design_capacity_warning, units);
seq_printf(seq, "design capacity low: %d %sh\n",
- (u32) bif->design_capacity_low, units);
+ (u32) bif->design_capacity_low, units);
seq_printf(seq, "capacity granularity 1: %d %sh\n",
- (u32) bif->battery_capacity_granularity_1, units);
+ (u32) bif->battery_capacity_granularity_1, units);
seq_printf(seq, "capacity granularity 2: %d %sh\n",
- (u32) bif->battery_capacity_granularity_2, units);
- seq_printf(seq, "model number: %s\n",
- bif->model_number);
- seq_printf(seq, "serial number: %s\n",
- bif->serial_number);
- seq_printf(seq, "battery type: %s\n",
- bif->battery_type);
- seq_printf(seq, "OEM info: %s\n",
- bif->oem_info);
-
-end:
+ (u32) bif->battery_capacity_granularity_2, units);
+ seq_printf(seq, "model number: %s\n", bif->model_number);
+ seq_printf(seq, "serial number: %s\n", bif->serial_number);
+ seq_printf(seq, "battery type: %s\n", bif->battery_type);
+ seq_printf(seq, "OEM info: %s\n", bif->oem_info);
+
+ end:
kfree(bif);
return_VALUE(0);
return single_open(file, acpi_battery_read_info, PDE(inode)->data);
}
-
-static int
-acpi_battery_read_state (struct seq_file *seq, void *offset)
+static int acpi_battery_read_state(struct seq_file *seq, void *offset)
{
- int result = 0;
- struct acpi_battery *battery = (struct acpi_battery *) seq->private;
+ int result = 0;
+ struct acpi_battery *battery = (struct acpi_battery *)seq->private;
struct acpi_battery_status *bst = NULL;
- char *units = "?";
+ char *units = "?";
ACPI_FUNCTION_TRACE("acpi_battery_read_state");
/* Battery Units */
- units = battery->flags.power_unit ? ACPI_BATTERY_UNITS_AMPS : ACPI_BATTERY_UNITS_WATTS;
+ units =
+ battery->flags.
+ power_unit ? ACPI_BATTERY_UNITS_AMPS : ACPI_BATTERY_UNITS_WATTS;
/* Battery Status (_BST) */
else
seq_printf(seq, "capacity state: critical\n");
- if ((bst->state & 0x01) && (bst->state & 0x02)){
- seq_printf(seq, "charging state: charging/discharging\n");
- ACPI_DEBUG_PRINT ((ACPI_DB_ERROR,
- "Battery Charging and Discharging?\n"));
- }
- else if (bst->state & 0x01)
+ if ((bst->state & 0x01) && (bst->state & 0x02)) {
+ seq_printf(seq,
+ "charging state: charging/discharging\n");
+ ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
+ "Battery Charging and Discharging?\n"));
+ } else if (bst->state & 0x01)
seq_printf(seq, "charging state: discharging\n");
else if (bst->state & 0x02)
seq_printf(seq, "charging state: charging\n");
seq_printf(seq, "present rate: unknown\n");
else
seq_printf(seq, "present rate: %d %s\n",
- (u32) bst->present_rate, units);
+ (u32) bst->present_rate, units);
if (bst->remaining_capacity == ACPI_BATTERY_VALUE_UNKNOWN)
seq_printf(seq, "remaining capacity: unknown\n");
else
seq_printf(seq, "remaining capacity: %d %sh\n",
- (u32) bst->remaining_capacity, units);
+ (u32) bst->remaining_capacity, units);
if (bst->present_voltage == ACPI_BATTERY_VALUE_UNKNOWN)
seq_printf(seq, "present voltage: unknown\n");
else
seq_printf(seq, "present voltage: %d mV\n",
- (u32) bst->present_voltage);
+ (u32) bst->present_voltage);
-end:
+ end:
kfree(bst);
return_VALUE(0);
return single_open(file, acpi_battery_read_state, PDE(inode)->data);
}
-
-static int
-acpi_battery_read_alarm (struct seq_file *seq, void *offset)
+static int acpi_battery_read_alarm(struct seq_file *seq, void *offset)
{
- struct acpi_battery *battery = (struct acpi_battery *) seq->private;
- char *units = "?";
+ struct acpi_battery *battery = (struct acpi_battery *)seq->private;
+ char *units = "?";
ACPI_FUNCTION_TRACE("acpi_battery_read_alarm");
}
/* Battery Units */
-
- units = battery->flags.power_unit ? ACPI_BATTERY_UNITS_AMPS : ACPI_BATTERY_UNITS_WATTS;
+
+ units =
+ battery->flags.
+ power_unit ? ACPI_BATTERY_UNITS_AMPS : ACPI_BATTERY_UNITS_WATTS;
/* Battery Alarm */
else
seq_printf(seq, "%d %sh\n", (u32) battery->alarm, units);
-end:
+ end:
return_VALUE(0);
}
-
static ssize_t
-acpi_battery_write_alarm (
- struct file *file,
- const char __user *buffer,
- size_t count,
- loff_t *ppos)
+acpi_battery_write_alarm(struct file *file,
+ const char __user * buffer,
+ size_t count, loff_t * ppos)
{
- int result = 0;
- char alarm_string[12] = {'\0'};
- struct seq_file *m = (struct seq_file *)file->private_data;
- struct acpi_battery *battery = (struct acpi_battery *)m->private;
+ int result = 0;
+ char alarm_string[12] = { '\0' };
+ struct seq_file *m = (struct seq_file *)file->private_data;
+ struct acpi_battery *battery = (struct acpi_battery *)m->private;
ACPI_FUNCTION_TRACE("acpi_battery_write_alarm");
if (copy_from_user(alarm_string, buffer, count))
return_VALUE(-EFAULT);
-
+
alarm_string[count] = '\0';
- result = acpi_battery_set_alarm(battery,
- simple_strtoul(alarm_string, NULL, 0));
+ result = acpi_battery_set_alarm(battery,
+ simple_strtoul(alarm_string, NULL, 0));
if (result)
return_VALUE(result);
}
static struct file_operations acpi_battery_info_ops = {
- .open = acpi_battery_info_open_fs,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
+ .open = acpi_battery_info_open_fs,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
.owner = THIS_MODULE,
};
static struct file_operations acpi_battery_state_ops = {
- .open = acpi_battery_state_open_fs,
- .read = seq_read,
- .llseek = seq_lseek,
- .release = single_release,
+ .open = acpi_battery_state_open_fs,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
.owner = THIS_MODULE,
};
static struct file_operations acpi_battery_alarm_ops = {
- .open = acpi_battery_alarm_open_fs,
- .read = seq_read,
- .write = acpi_battery_write_alarm,
- .llseek = seq_lseek,
- .release = single_release,
+ .open = acpi_battery_alarm_open_fs,
+ .read = seq_read,
+ .write = acpi_battery_write_alarm,
+ .llseek = seq_lseek,
+ .release = single_release,
.owner = THIS_MODULE,
};
-static int
-acpi_battery_add_fs (
- struct acpi_device *device)
+static int acpi_battery_add_fs(struct acpi_device *device)
{
- struct proc_dir_entry *entry = NULL;
+ struct proc_dir_entry *entry = NULL;
ACPI_FUNCTION_TRACE("acpi_battery_add_fs");
if (!acpi_device_dir(device)) {
acpi_device_dir(device) = proc_mkdir(acpi_device_bid(device),
- acpi_battery_dir);
+ acpi_battery_dir);
if (!acpi_device_dir(device))
return_VALUE(-ENODEV);
acpi_device_dir(device)->owner = THIS_MODULE;
/* 'info' [R] */
entry = create_proc_entry(ACPI_BATTERY_FILE_INFO,
- S_IRUGO, acpi_device_dir(device));
+ S_IRUGO, acpi_device_dir(device));
if (!entry)
ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
- "Unable to create '%s' fs entry\n",
- ACPI_BATTERY_FILE_INFO));
+ "Unable to create '%s' fs entry\n",
+ ACPI_BATTERY_FILE_INFO));
else {
- entry->proc_fops = &acpi_battery_info_ops;
+ entry->proc_fops = &acpi_battery_info_ops;
entry->data = acpi_driver_data(device);
entry->owner = THIS_MODULE;
}
/* 'status' [R] */
entry = create_proc_entry(ACPI_BATTERY_FILE_STATUS,
- S_IRUGO, acpi_device_dir(device));
+ S_IRUGO, acpi_device_dir(device));
if (!entry)
ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
- "Unable to create '%s' fs entry\n",
- ACPI_BATTERY_FILE_STATUS));
+ "Unable to create '%s' fs entry\n",
+ ACPI_BATTERY_FILE_STATUS));
else {
entry->proc_fops = &acpi_battery_state_ops;
entry->data = acpi_driver_data(device);
/* 'alarm' [R/W] */
entry = create_proc_entry(ACPI_BATTERY_FILE_ALARM,
- S_IFREG|S_IRUGO|S_IWUSR, acpi_device_dir(device));
+ S_IFREG | S_IRUGO | S_IWUSR,
+ acpi_device_dir(device));
if (!entry)
ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
- "Unable to create '%s' fs entry\n",
- ACPI_BATTERY_FILE_ALARM));
+ "Unable to create '%s' fs entry\n",
+ ACPI_BATTERY_FILE_ALARM));
else {
entry->proc_fops = &acpi_battery_alarm_ops;
entry->data = acpi_driver_data(device);
return_VALUE(0);
}
-
-static int
-acpi_battery_remove_fs (
- struct acpi_device *device)
+static int acpi_battery_remove_fs(struct acpi_device *device)
{
ACPI_FUNCTION_TRACE("acpi_battery_remove_fs");
return_VALUE(0);
}
-
/* --------------------------------------------------------------------------
Driver Interface
-------------------------------------------------------------------------- */
-static void
-acpi_battery_notify (
- acpi_handle handle,
- u32 event,
- void *data)
+static void acpi_battery_notify(acpi_handle handle, u32 event, void *data)
{
- struct acpi_battery *battery = (struct acpi_battery *) data;
- struct acpi_device *device = NULL;
+ struct acpi_battery *battery = (struct acpi_battery *)data;
+ struct acpi_device *device = NULL;
ACPI_FUNCTION_TRACE("acpi_battery_notify");
break;
default:
ACPI_DEBUG_PRINT((ACPI_DB_INFO,
- "Unsupported event [0x%x]\n", event));
+ "Unsupported event [0x%x]\n", event));
break;
}
return_VOID;
}
-
-static int
-acpi_battery_add (
- struct acpi_device *device)
+static int acpi_battery_add(struct acpi_device *device)
{
- int result = 0;
- acpi_status status = 0;
- struct acpi_battery *battery = NULL;
+ int result = 0;
+ acpi_status status = 0;
+ struct acpi_battery *battery = NULL;
ACPI_FUNCTION_TRACE("acpi_battery_add");
-
+
if (!device)
return_VALUE(-EINVAL);
goto end;
status = acpi_install_notify_handler(battery->handle,
- ACPI_DEVICE_NOTIFY, acpi_battery_notify, battery);
+ ACPI_DEVICE_NOTIFY,
+ acpi_battery_notify, battery);
if (ACPI_FAILURE(status)) {
ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
- "Error installing notify handler\n"));
+ "Error installing notify handler\n"));
result = -ENODEV;
goto end;
}
printk(KERN_INFO PREFIX "%s Slot [%s] (battery %s)\n",
- ACPI_BATTERY_DEVICE_NAME, acpi_device_bid(device),
- device->status.battery_present?"present":"absent");
-
-end:
+ ACPI_BATTERY_DEVICE_NAME, acpi_device_bid(device),
+ device->status.battery_present ? "present" : "absent");
+
+ end:
if (result) {
acpi_battery_remove_fs(device);
kfree(battery);
return_VALUE(result);
}
-
-static int
-acpi_battery_remove (
- struct acpi_device *device,
- int type)
+static int acpi_battery_remove(struct acpi_device *device, int type)
{
- acpi_status status = 0;
- struct acpi_battery *battery = NULL;
+ acpi_status status = 0;
+ struct acpi_battery *battery = NULL;
ACPI_FUNCTION_TRACE("acpi_battery_remove");
if (!device || !acpi_driver_data(device))
return_VALUE(-EINVAL);
- battery = (struct acpi_battery *) acpi_driver_data(device);
+ battery = (struct acpi_battery *)acpi_driver_data(device);
status = acpi_remove_notify_handler(battery->handle,
- ACPI_DEVICE_NOTIFY, acpi_battery_notify);
+ ACPI_DEVICE_NOTIFY,
+ acpi_battery_notify);
if (ACPI_FAILURE(status))
ACPI_DEBUG_PRINT((ACPI_DB_ERROR,
- "Error removing notify handler\n"));
+ "Error removing notify handler\n"));
acpi_battery_remove_fs(device);
return_VALUE(0);
}
-
-static int __init
-acpi_battery_init (void)
+static int __init acpi_battery_init(void)
{
- int result = 0;
+ int result = 0;
ACPI_FUNCTION_TRACE("acpi_battery_init");
return_VALUE(0);
}
-
-static void __exit
-acpi_battery_exit (void)
+static void __exit acpi_battery_exit(void)
{
ACPI_FUNCTION_TRACE("acpi_battery_exit");
return_VOID;
}
-
module_init(acpi_battery_init);
module_exit(acpi_battery_exit);
git://git.onelab.eu / linux-2.6.git / blobdiff