include/linux/sed-opal.h

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