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ACPI: add support for Smart Battery

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Most batteries today are ACPI "Control Method" batteries,
but some models ship with the older "Smart Battery"
that requires this code.

Rich Townsend and Bruno Ducrot were the original authors.
Vladimir Lebedev updated to run on latest kernel.

http://bugzilla.kernel.org/show_bug.cgi?id=3734

Signed-off-by: Len Brown <len.brown@intel.com>
This commit is contained in:
Rich Townsend
2006-07-01 11:36:54 -04:00
committed by Len Brown
parent 37672d4c52
commit 3f86b83243
8 changed files with 2434 additions and 11 deletions
Download Patch File Download Diff File Expand all files Collapse all files

12
drivers/acpi/ac.c
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@ -50,6 +50,9 @@ ACPI_MODULE_NAME("acpi_ac")
MODULE_DESCRIPTION(ACPI_AC_DRIVER_NAME);
MODULE_LICENSE("GPL");
extern struct proc_dir_entry *acpi_lock_ac_dir(void);
extern void *acpi_unlock_ac_dir(struct proc_dir_entry *acpi_ac_dir);
static int acpi_ac_add(struct acpi_device *device);
static int acpi_ac_remove(struct acpi_device *device, int type);
static int acpi_ac_open_fs(struct inode *inode, struct file *file);
@ -278,17 +281,16 @@ static int acpi_ac_remove(struct acpi_device *device, int type)
static int __init acpi_ac_init(void)
{
int result = 0;
int result;
acpi_ac_dir = proc_mkdir(ACPI_AC_CLASS, acpi_root_dir);
acpi_ac_dir = acpi_lock_ac_dir();
if (!acpi_ac_dir)
return -ENODEV;
acpi_ac_dir->owner = THIS_MODULE;
result = acpi_bus_register_driver(&acpi_ac_driver);
if (result < 0) {
remove_proc_entry(ACPI_AC_CLASS, acpi_root_dir);
acpi_unlock_ac_dir(acpi_ac_dir);
return -ENODEV;
}
@ -300,7 +302,7 @@ static void __exit acpi_ac_exit(void)
acpi_bus_unregister_driver(&acpi_ac_driver);
remove_proc_entry(ACPI_AC_CLASS, acpi_root_dir);
acpi_unlock_ac_dir(acpi_ac_dir);
return;
}