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#include <linux/kernel.h>
#include <linux/acpi.h>
#include <linux/debugfs.h>
#include "internal.h"
MODULE_AUTHOR("Thomas Renninger <trenn@suse.de>");
MODULE_DESCRIPTION("ACPI EC sysfs access driver");
MODULE_LICENSE("GPL");
struct sysdev_class acpi_ec_sysdev_class = {
.name = "ec",
};
static struct dentry *acpi_ec_debugfs_dir;
int acpi_ec_add_debugfs(struct acpi_ec *ec, unsigned int ec_device_count)
{
struct dentry *dev_dir;
char name[64];
if (ec_device_count == 0) {
acpi_ec_debugfs_dir = debugfs_create_dir("ec", NULL);
if (!acpi_ec_debugfs_dir)
return -ENOMEM;
}
sprintf(name, "ec%u", ec_device_count);
dev_dir = debugfs_create_dir(name, acpi_ec_debugfs_dir);
if (!dev_dir) {
if (ec_device_count == 0)
debugfs_remove_recursive(acpi_ec_debugfs_dir);
/* TBD: Proper cleanup for multiple ECs */
return -ENOMEM;
}
debugfs_create_x32("gpe", 0444, dev_dir, (u32 *)&first_ec->gpe);
debugfs_create_bool("use_global_lock", 0444, dev_dir,
(u32 *)&first_ec->global_lock);
return 0;
}
static int __init acpi_ec_sys_init(void)
{
int err = 0;
if (first_ec)
err = acpi_ec_add_debugfs(first_ec, 0);
else
err = -ENODEV;
return err;
}
static void __exit acpi_ec_sys_exit(void)
{
debugfs_remove_recursive(acpi_ec_debugfs_dir);
}
module_init(acpi_ec_sys_init);
module_exit(acpi_ec_sys_exit);
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