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/* SPDX-License-Identifier: GPL-2.0-or-later */
#ifndef _THINK_LMI_H_
#define _THINK_LMI_H_
#include <linux/types.h>
#define TLMI_SETTINGS_COUNT 256
#define TLMI_SETTINGS_MAXLEN 512
#define TLMI_PWD_BUFSIZE 129
#define TLMI_LANG_MAXLEN 4
#define TLMI_INDEX_MAX 32
/* Possible error values */
struct tlmi_err_codes {
const char *err_str;
int err_code;
};
enum encoding_option {
TLMI_ENCODING_ASCII,
TLMI_ENCODING_SCANCODE,
};
enum level_option {
TLMI_LEVEL_USER,
TLMI_LEVEL_MASTER,
};
/* password configuration details */
struct tlmi_pwdcfg_core {
uint32_t password_mode;
uint32_t password_state;
uint32_t min_length;
uint32_t max_length;
uint32_t supported_encodings;
uint32_t supported_keyboard;
};
struct tlmi_pwdcfg_ext {
uint32_t hdd_user_password;
uint32_t hdd_master_password;
uint32_t nvme_user_password;
uint32_t nvme_master_password;
};
struct tlmi_pwdcfg {
struct tlmi_pwdcfg_core core;
struct tlmi_pwdcfg_ext ext;
};
/* password setting details */
struct tlmi_pwd_setting {
struct kobject kobj;
bool valid;
char password[TLMI_PWD_BUFSIZE];
const char *pwd_type;
const char *role;
int minlen;
int maxlen;
enum encoding_option encoding;
char kbdlang[TLMI_LANG_MAXLEN];
int index; /*Used for HDD and NVME auth */
enum level_option level;
};
/* Attribute setting details */
struct tlmi_attr_setting {
struct kobject kobj;
int index;
char display_name[TLMI_SETTINGS_MAXLEN];
char *possible_values;
};
struct think_lmi {
struct wmi_device *wmi_device;
bool can_set_bios_settings;
bool can_get_bios_selections;
bool can_set_bios_password;
bool can_get_password_settings;
bool pending_changes;
bool can_debug_cmd;
bool opcode_support;
struct tlmi_attr_setting *setting[TLMI_SETTINGS_COUNT];
struct device *class_dev;
struct kset *attribute_kset;
struct kset *authentication_kset;
struct tlmi_pwdcfg pwdcfg;
struct tlmi_pwd_setting *pwd_admin;
struct tlmi_pwd_setting *pwd_power;
struct tlmi_pwd_setting *pwd_system;
struct tlmi_pwd_setting *pwd_hdd;
struct tlmi_pwd_setting *pwd_nvme;
};
#endif /* !_THINK_LMI_H_ */
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