platform/x86: think-lmi: Opcode support

Implement Opcode support.
This is available on ThinkCenter and ThinkStations platforms and
gives improved password setting capabilities

Add options to configure System, HDD & NVMe passwords.
HDD & NVMe passwords need a user level (user/master) along with
drive index.
Signed-off-by: Mark Pearson <markpearson@lenovo.com>
Link: https://lore.kernel.org/r/20211117184453.2476-2-markpearson@lenovo.comReviewed-by: Hans de Goede <hdegoede@redhat.com>
Signed-off-by: Hans de Goede <hdegoede@redhat.com>

drivers/platform/x86/think-lmi.h

@@ -9,6 +9,7 @@
 #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 {
@@ -21,8 +22,13 @@ enum encoding_option {
 	TLMI_ENCODING_SCANCODE,
 };
 
+enum level_option {
+	TLMI_LEVEL_USER,
+	TLMI_LEVEL_MASTER,
+};
+
 /* password configuration details */
-struct tlmi_pwdcfg {
+struct tlmi_pwdcfg_core {
 	uint32_t password_mode;
 	uint32_t password_state;
 	uint32_t min_length;
@@ -31,6 +37,18 @@ struct tlmi_pwdcfg {
 	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;
@@ -42,6 +60,8 @@ struct tlmi_pwd_setting {
 	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 */
@@ -61,13 +81,19 @@ struct think_lmi {
 	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_ */