LXR linux/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
  16struct opal_dev;
  17
  18typedef 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
  22void free_opal_dev(struct opal_dev *dev);
  23bool opal_unlock_from_suspend(struct opal_dev *dev);
  24struct opal_dev *init_opal_dev(void *data, sec_send_recv *send_recv);
  25int sed_ioctl(struct opal_dev *dev, unsigned int cmd, void __user *ioctl_ptr);
  26
  27static 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
  51static inline void free_opal_dev(struct opal_dev *dev)
  52{
  53}
  54
  55static inline bool is_sed_ioctl(unsigned int cmd)
  56{
  57        return false;
  58}
  59
  60static inline int sed_ioctl(struct opal_dev *dev, unsigned int cmd,
  61                            void __user *ioctl_ptr)
  62{
  63        return 0;
  64}
  65static 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 */
  72