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 24 struct opal_dev; 25 26 typedef 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 30 void free_opal_dev(struct opal_dev *dev); 31 bool opal_unlock_from_suspend(struct opal_dev *dev); 32 struct opal_dev *init_opal_dev(void *data, sec_send_recv *send_recv); 33 int sed_ioctl(struct opal_dev *dev, unsigned int cmd, void __user *ioctl_ptr); 34 35 static 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 55 static inline void free_opal_dev(struct opal_dev *dev) 56 { 57 } 58 59 static inline bool is_sed_ioctl(unsigned int cmd) 60 { 61 return false; 62 } 63 64 static inline int sed_ioctl(struct opal_dev *dev, unsigned int cmd, 65 void __user *ioctl_ptr) 66 { 67 return 0; 68 } 69 static 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