Commit | Line | Data |
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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); |