/* SPDX-License-Identifier: GPL-2.0 * * Definitions for kernel modules using hp_bioscfg driver * * Copyright (c) 2022 HP Development Company, L.P. */ #ifndef _HP_BIOSCFG_H_ #define _HP_BIOSCFG_H_ #include <linux/wmi.h> #include <linux/types.h> #include <linux/device.h> #include <linux/module.h> #include <linux/kernel.h> #include <linux/nls.h> #define DRIVER_NAME … #define MAX_BUFF_SIZE … #define MAX_KEY_MOD_SIZE … #define MAX_PASSWD_SIZE … #define MAX_PREREQUISITES_SIZE … #define MAX_REQ_ELEM_SIZE … #define MAX_VALUES_SIZE … #define MAX_ENCODINGS_SIZE … #define MAX_ELEMENTS_SIZE … #define SPM_STR_DESC … #define SPM_STR … #define SURE_START_DESC … #define SURE_START_STR … #define SETUP_PASSWD … #define POWER_ON_PASSWD … #define LANG_CODE_STR … #define SCHEDULE_POWER_ON … #define COMMA_SEP … #define SEMICOLON_SEP … /* Sure Admin Functions */ #define UTF_PREFIX … #define BEAM_PREFIX … enum mechanism_values { … }; #define BIOS_ADMIN … #define POWER_ON … #define BIOS_SPM … #define PASSWD_MECHANISM_TYPES … #define HP_WMI_BIOS_GUID … #define HP_WMI_BIOS_STRING_GUID … #define HP_WMI_BIOS_INTEGER_GUID … #define HP_WMI_BIOS_ENUMERATION_GUID … #define HP_WMI_BIOS_ORDERED_LIST_GUID … #define HP_WMI_BIOS_PASSWORD_GUID … #define HP_WMI_SET_BIOS_SETTING_GUID … enum hp_wmi_spm_commandtype { … }; enum hp_wmi_surestart_commandtype { … }; enum hp_wmi_command { … }; struct bios_return { … }; enum wmi_error_values { … }; struct common_data { … }; struct string_data { … }; struct integer_data { … }; struct enumeration_data { … }; struct ordered_list_data { … }; struct password_data { … }; struct secure_platform_data { … }; struct bioscfg_priv { … }; /* global structure used by multiple WMI interfaces */ extern struct bioscfg_priv bioscfg_drv; enum hp_wmi_data_type { … }; enum hp_wmi_data_elements { … }; #define GET_INSTANCE_ID(type) … #define ATTRIBUTE_S_PROPERTY_SHOW(name, type) … #define ATTRIBUTE_N_PROPERTY_SHOW(name, type) … #define ATTRIBUTE_PROPERTY_STORE(curr_val, type) … #define ATTRIBUTE_SPM_N_PROPERTY_SHOW(name, type) … #define ATTRIBUTE_SPM_S_PROPERTY_SHOW(name, type) … #define ATTRIBUTE_VALUES_PROPERTY_SHOW(name, type, sep) … #define ATTRIBUTE_S_COMMON_PROPERTY_SHOW(name, type) … extern struct kobj_attribute common_display_langcode; /* Prototypes */ /* String attributes */ int hp_populate_string_buffer_data(u8 *buffer_ptr, u32 *buffer_size, int instance_id, struct kobject *attr_name_kobj); int hp_alloc_string_data(void); void hp_exit_string_attributes(void); int hp_populate_string_package_data(union acpi_object *str_obj, int instance_id, struct kobject *attr_name_kobj); /* Integer attributes */ int hp_populate_integer_buffer_data(u8 *buffer_ptr, u32 *buffer_size, int instance_id, struct kobject *attr_name_kobj); int hp_alloc_integer_data(void); void hp_exit_integer_attributes(void); int hp_populate_integer_package_data(union acpi_object *integer_obj, int instance_id, struct kobject *attr_name_kobj); /* Enumeration attributes */ int hp_populate_enumeration_buffer_data(u8 *buffer_ptr, u32 *buffer_size, int instance_id, struct kobject *attr_name_kobj); int hp_alloc_enumeration_data(void); void hp_exit_enumeration_attributes(void); int hp_populate_enumeration_package_data(union acpi_object *enum_obj, int instance_id, struct kobject *attr_name_kobj); /* Ordered list */ int hp_populate_ordered_list_buffer_data(u8 *buffer_ptr, u32 *buffer_size, int instance_id, struct kobject *attr_name_kobj); int hp_alloc_ordered_list_data(void); void hp_exit_ordered_list_attributes(void); int hp_populate_ordered_list_package_data(union acpi_object *order_obj, int instance_id, struct kobject *attr_name_kobj); /* Password authentication attributes */ int hp_populate_password_buffer_data(u8 *buffer_ptr, u32 *buffer_size, int instance_id, struct kobject *attr_name_kobj); int hp_populate_password_package_data(union acpi_object *password_obj, int instance_id, struct kobject *attr_name_kobj); int hp_alloc_password_data(void); int hp_get_password_instance_for_type(const char *name); int hp_clear_all_credentials(void); int hp_set_attribute(const char *a_name, const char *a_value); /* SPM attributes */ void hp_exit_password_attributes(void); void hp_exit_secure_platform_attributes(void); int hp_populate_secure_platform_data(struct kobject *attr_name_kobj); int hp_populate_security_buffer(u16 *buffer, const char *authentication); /* Bios Attributes interface */ int hp_wmi_set_bios_setting(u16 *input_buffer, u32 input_size); int hp_wmi_perform_query(int query, enum hp_wmi_command command, void *buffer, u32 insize, u32 outsize); /* Sure Start attributes */ void hp_exit_sure_start_attributes(void); int hp_populate_sure_start_data(struct kobject *attr_name_kobj); /* Bioscfg */ void hp_exit_attr_set_interface(void); int hp_init_attr_set_interface(void); size_t hp_calculate_string_buffer(const char *str); size_t hp_calculate_security_buffer(const char *authentication); void *hp_ascii_to_utf16_unicode(u16 *p, const u8 *str); int hp_get_integer_from_buffer(u8 **buffer, u32 *buffer_size, u32 *integer); int hp_get_string_from_buffer(u8 **buffer, u32 *buffer_size, char *dst, u32 dst_size); int hp_convert_hexstr_to_str(const char *input, u32 input_len, char **str, int *len); int hp_encode_outsize_for_pvsz(int outsize); int hp_enforce_single_line_input(char *buf, size_t count); void hp_set_reboot_and_signal_event(void); ssize_t display_name_language_code_show(struct kobject *kobj, struct kobj_attribute *attr, char *buf); union acpi_object *hp_get_wmiobj_pointer(int instance_id, const char *guid_string); int hp_get_instance_count(const char *guid_string); void hp_update_attribute_permissions(bool isreadonly, struct kobj_attribute *current_val); void hp_friendly_user_name_update(char *path, const char *attr_name, char *attr_display, int attr_size); int hp_wmi_error_and_message(int error_code); int hp_get_common_data_from_buffer(u8 **buffer_ptr, u32 *buffer_size, struct common_data *common); #endif
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