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 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 return true; 46 } 47 return false; 48 } 49 #else 50 static inline void free_opal_dev(struct opal_dev *dev) 51 { 52 } 53 54 static inline bool is_sed_ioctl(unsigned int cmd) 55 { 56 return false; 57 } 58 59 static inline int sed_ioctl(struct opal_dev *dev, unsigned int cmd, 60 void __user *ioctl_ptr) 61 { 62 return 0; 63 } 64 static inline bool opal_unlock_from_suspend(struct opal_dev *dev) 65 { 66 return false; 67 } 68 #define init_opal_dev(data, send_recv) NULL 69 #endif /* CONFIG_BLK_SED_OPAL */ 70 #endif /* LINUX_OPAL_H */ 71