1/*
2 * Copyright © 2016 Intel Corporation
3 *
4 * Authors:
5 * Rafael Antognolli <rafael.antognolli@intel.com>
6 * Scott Bauer <scott.bauer@intel.com>
7 *
8 * This program is free software; you can redistribute it and/or modify it
9 * under the terms and conditions of the GNU General Public License,
10 * version 2, as published by the Free Software Foundation.
11 *
12 * This program is distributed in the hope it will be useful, but WITHOUT
13 * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
14 * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
15 * more details.
16 */
17
18#ifndef LINUX_OPAL_H
19#define LINUX_OPAL_H
20
21#include <uapi/linux/sed-opal.h>
22#include <linux/kernel.h>
23
24struct opal_dev;
25
26typedef int (sec_send_recv)(void *data, u16 spsp, u8 secp, void *buffer,
27 size_t len, bool send);
28
29#ifdef CONFIG_BLK_SED_OPAL
30void free_opal_dev(struct opal_dev *dev);
31bool opal_unlock_from_suspend(struct opal_dev *dev);
32struct opal_dev *init_opal_dev(void *data, sec_send_recv *send_recv);
33int sed_ioctl(struct opal_dev *dev, unsigned int cmd, void __user *ioctl_ptr);
34
35static inline bool is_sed_ioctl(unsigned int cmd)
36{
37 switch (cmd) {
38 case IOC_OPAL_SAVE:
39 case IOC_OPAL_LOCK_UNLOCK:
40 case IOC_OPAL_TAKE_OWNERSHIP:
41 case IOC_OPAL_ACTIVATE_LSP:
42 case IOC_OPAL_SET_PW:
43 case IOC_OPAL_ACTIVATE_USR:
44 case IOC_OPAL_REVERT_TPR:
45 case IOC_OPAL_LR_SETUP:
46 case IOC_OPAL_ADD_USR_TO_LR:
47 case IOC_OPAL_ENABLE_DISABLE_MBR:
48 case IOC_OPAL_ERASE_LR:
49 case IOC_OPAL_SECURE_ERASE_LR:
50 return true;
51 }
52 return false;
53}
54#else
55static inline void free_opal_dev(struct opal_dev *dev)
56{
57}
58
59static inline bool is_sed_ioctl(unsigned int cmd)
60{
61 return false;
62}
63
64static inline int sed_ioctl(struct opal_dev *dev, unsigned int cmd,
65 void __user *ioctl_ptr)
66{
67 return 0;
68}
69static inline bool opal_unlock_from_suspend(struct opal_dev *dev)
70{
71 return false;
72}
73#define init_opal_dev(data, send_recv) NULL
74#endif /* CONFIG_BLK_SED_OPAL */
75#endif /* LINUX_OPAL_H */
76