LXR linux/include/linux/sed-opal.h

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