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/kernel.h>
15
16 struct opal_dev;
17
18 typedef int (sec_send_recv)(void *data, u16 spsp, u8 secp, void *buffer,
19 size_t len, bool send);
20
21 #ifdef CONFIG_BLK_SED_OPAL
22 void free_opal_dev(struct opal_dev *dev);
23 bool opal_unlock_from_suspend(struct opal_dev *dev);
24 struct opal_dev *init_opal_dev(void *data, sec_send_recv *send_recv);
25 int sed_ioctl(struct opal_dev *dev, unsigned int cmd, void __user *ioctl_ptr);
26
is_sed_ioctl(unsigned int cmd)27 static inline bool is_sed_ioctl(unsigned int cmd)
28 {
29 switch (cmd) {
30 case IOC_OPAL_SAVE:
31 case IOC_OPAL_LOCK_UNLOCK:
32 case IOC_OPAL_TAKE_OWNERSHIP:
33 case IOC_OPAL_ACTIVATE_LSP:
34 case IOC_OPAL_SET_PW:
35 case IOC_OPAL_ACTIVATE_USR:
36 case IOC_OPAL_REVERT_TPR:
37 case IOC_OPAL_LR_SETUP:
38 case IOC_OPAL_ADD_USR_TO_LR:
39 case IOC_OPAL_ENABLE_DISABLE_MBR:
40 case IOC_OPAL_ERASE_LR:
41 case IOC_OPAL_SECURE_ERASE_LR:
42 case IOC_OPAL_PSID_REVERT_TPR:
43 case IOC_OPAL_MBR_DONE:
44 case IOC_OPAL_WRITE_SHADOW_MBR:
45 case IOC_OPAL_GENERIC_TABLE_RW:
46 case IOC_OPAL_GET_STATUS:
47 return true;
48 }
49 return false;
50 }
51 #else
free_opal_dev(struct opal_dev * dev)52 static inline void free_opal_dev(struct opal_dev *dev)
53 {
54 }
55
is_sed_ioctl(unsigned int cmd)56 static inline bool is_sed_ioctl(unsigned int cmd)
57 {
58 return false;
59 }
60
sed_ioctl(struct opal_dev * dev,unsigned int cmd,void __user * ioctl_ptr)61 static inline int sed_ioctl(struct opal_dev *dev, unsigned int cmd,
62 void __user *ioctl_ptr)
63 {
64 return 0;
65 }
opal_unlock_from_suspend(struct opal_dev * dev)66 static inline bool opal_unlock_from_suspend(struct opal_dev *dev)
67 {
68 return false;
69 }
70 #define init_opal_dev(data, send_recv) NULL
71 #endif /* CONFIG_BLK_SED_OPAL */
72 #endif /* LINUX_OPAL_H */
73
