drivers/platform/x86/think-lmi.h

   1 /* SPDX-License-Identifier: GPL-2.0-or-later */
   2
   3 #ifndef _THINK_LMI_H_
   4 #define _THINK_LMI_H_
   5
   6 #include <linux/types.h>
   7
   8 #define TLMI_SETTINGS_COUNT  256
   9 #define TLMI_SETTINGS_MAXLEN 512
  10 #define TLMI_PWD_BUFSIZE     129
  11 #define TLMI_LANG_MAXLEN       4
  12
  13 /* Possible error values */
  14 struct tlmi_err_codes {
  15         const char *err_str;
  16         int err_code;
  17 };
  18
  19 enum encoding_option {
  20         TLMI_ENCODING_ASCII,
  21         TLMI_ENCODING_SCANCODE,
  22 };
  23
  24 /* password configuration details */
  25 struct tlmi_pwdcfg {
  26         uint32_t password_mode;
  27         uint32_t password_state;
  28         uint32_t min_length;
  29         uint32_t max_length;
  30         uint32_t supported_encodings;
  31         uint32_t supported_keyboard;
  32 };
  33
  34 /* password setting details */
  35 struct tlmi_pwd_setting {
  36         struct kobject kobj;
  37         bool valid;
  38         char password[TLMI_PWD_BUFSIZE];
  39         const char *pwd_type;
  40         const char *role;
  41         int minlen;
  42         int maxlen;
  43         enum encoding_option encoding;
  44         char kbdlang[TLMI_LANG_MAXLEN];
  45 };
  46
  47 /* Attribute setting details */
  48 struct tlmi_attr_setting {
  49         struct kobject kobj;
  50         int index;
  51         char display_name[TLMI_SETTINGS_MAXLEN];
  52         char *possible_values;
  53 };
  54
  55 struct think_lmi {
  56         struct wmi_device *wmi_device;
  57
  58         int settings_count;
  59         bool can_set_bios_settings;
  60         bool can_get_bios_selections;
  61         bool can_set_bios_password;
  62         bool can_get_password_settings;
  63         bool pending_changes;
  64         bool can_debug_cmd;
  65
  66         struct tlmi_attr_setting *setting[TLMI_SETTINGS_COUNT];
  67         struct device *class_dev;
  68         struct kset *attribute_kset;
  69         struct kset *authentication_kset;
  70         struct tlmi_pwd_setting *pwd_admin;
  71         struct tlmi_pwd_setting *pwd_power;
  72 };
  73
  74 #endif /* !_THINK_LMI_H_ */