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1/* SPDX-License-Identifier: GPL-2.0 */
2/*
3 * Copyright © 2016 Intel Corporation
4 *
5 * Authors:
6 * Rafael Antognolli <rafael.antognolli@intel.com>
7 * Scott Bauer <scott.bauer@intel.com>
8 */
9
10#ifndef LINUX_OPAL_H
11#define LINUX_OPAL_H
12
13#include <uapi/linux/sed-opal.h>
14#include <linux/compiler_types.h>
15#include <linux/types.h>
16
17struct opal_dev;
18
19typedef int (sec_send_recv)(void *data, u16 spsp, u8 secp, void *buffer,
20 size_t len, bool send);
21
22#ifdef CONFIG_BLK_SED_OPAL
23void free_opal_dev(struct opal_dev *dev);
24bool opal_unlock_from_suspend(struct opal_dev *dev);
25struct opal_dev *init_opal_dev(void *data, sec_send_recv *send_recv);
26int sed_ioctl(struct opal_dev *dev, unsigned int cmd, void __user *ioctl_ptr);
27
28static inline bool is_sed_ioctl(unsigned int cmd)
29{
30 switch (cmd) {
31 case IOC_OPAL_SAVE:
32 case IOC_OPAL_LOCK_UNLOCK:
33 case IOC_OPAL_TAKE_OWNERSHIP:
34 case IOC_OPAL_ACTIVATE_LSP:
35 case IOC_OPAL_SET_PW:
36 case IOC_OPAL_ACTIVATE_USR:
37 case IOC_OPAL_REVERT_TPR:
38 case IOC_OPAL_LR_SETUP:
39 case IOC_OPAL_ADD_USR_TO_LR:
40 case IOC_OPAL_ENABLE_DISABLE_MBR:
41 case IOC_OPAL_ERASE_LR:
42 case IOC_OPAL_SECURE_ERASE_LR:
43 case IOC_OPAL_PSID_REVERT_TPR:
44 case IOC_OPAL_MBR_DONE:
45 case IOC_OPAL_WRITE_SHADOW_MBR:
46 case IOC_OPAL_GENERIC_TABLE_RW:
47 case IOC_OPAL_GET_STATUS:
48 return true;
49 }
50 return false;
51}
52#else
53static inline void free_opal_dev(struct opal_dev *dev)
54{
55}
56
57static inline bool is_sed_ioctl(unsigned int cmd)
58{
59 return false;
60}
61
62static inline int sed_ioctl(struct opal_dev *dev, unsigned int cmd,
63 void __user *ioctl_ptr)
64{
65 return 0;
66}
67static inline bool opal_unlock_from_suspend(struct opal_dev *dev)
68{
69 return false;
70}
71#define init_opal_dev(data, send_recv) NULL
72#endif /* CONFIG_BLK_SED_OPAL */
73#endif /* LINUX_OPAL_H */