projects / deliverable / linux.git / blame
| Commit | Line | Data |
|---|---|---|
| 1195a098 TR |
1 | #include <linux/kernel.h> |
| 2 | #include <linux/acpi.h> | |
| 3 | #include <linux/debugfs.h> | |
| 4 | #include "internal.h" | |
| 5 | ||
| 6 | MODULE_AUTHOR("Thomas Renninger <trenn@suse.de>"); | |
| 7 | MODULE_DESCRIPTION("ACPI EC sysfs access driver"); | |
| 8 | MODULE_LICENSE("GPL"); | |
| 9 | ||
| 10 | struct sysdev_class acpi_ec_sysdev_class = { | |
| 11 | .name = "ec", | |
| 12 | }; | |
| 13 | ||
| 14 | static struct dentry *acpi_ec_debugfs_dir; | |
| 15 | ||
| 16 | int acpi_ec_add_debugfs(struct acpi_ec *ec, unsigned int ec_device_count) | |
| 17 | { | |
| 18 | struct dentry *dev_dir; | |
| 19 | char name[64]; | |
| 20 | if (ec_device_count == 0) { | |
| 21 | acpi_ec_debugfs_dir = debugfs_create_dir("ec", NULL); | |
| 22 | if (!acpi_ec_debugfs_dir) | |
| 23 | return -ENOMEM; | |
| 24 | } | |
| 25 | ||
| 26 | sprintf(name, "ec%u", ec_device_count); | |
| 27 | dev_dir = debugfs_create_dir(name, acpi_ec_debugfs_dir); | |
| 28 | if (!dev_dir) { | |
| 29 | if (ec_device_count == 0) | |
| 30 | debugfs_remove_recursive(acpi_ec_debugfs_dir); | |
| 31 | /* TBD: Proper cleanup for multiple ECs */ | |
| 32 | return -ENOMEM; | |
| 33 | } | |
| 34 | ||
| 35 | debugfs_create_x32("gpe", 0444, dev_dir, (u32 *)&first_ec->gpe); | |
| 36 | debugfs_create_bool("use_global_lock", 0444, dev_dir, | |
| 37 | (u32 *)&first_ec->global_lock); | |
| 38 | return 0; | |
| 39 | } | |
| 40 | ||
| 41 | static int __init acpi_ec_sys_init(void) | |
| 42 | { | |
| 43 | int err = 0; | |
| 44 | if (first_ec) | |
| 45 | err = acpi_ec_add_debugfs(first_ec, 0); | |
| 46 | else | |
| 47 | err = -ENODEV; | |
| 48 | return err; | |
| 49 | } | |
| 50 | ||
| 51 | static void __exit acpi_ec_sys_exit(void) | |
| 52 | { | |
| 53 | debugfs_remove_recursive(acpi_ec_debugfs_dir); | |
| 54 | } | |
| 55 | ||
| 56 | module_init(acpi_ec_sys_init); | |
| 57 | module_exit(acpi_ec_sys_exit); |