LXR uboot/drivers/tee/optee/optee

   1/* SPDX-License-Identifier: GPL-2.0+ */
   2/*
   3 * Copyright (c) 2018 Linaro Limited
   4 */
   5
   6#ifndef __OPTEE_PRIVATE_H
   7#define __OPTEE_PRIVATE_H
   8
   9#include <tee.h>
  10#include <log.h>
  11
  12/**
  13 * struct optee_private - OP-TEE driver private data
  14 * @rpmb_mmc:           mmc device for the RPMB partition
  15 * @rpmb_dev_id:        mmc device id matching @rpmb_mmc
  16 * @rpmb_original_part: the previosly active partition on the mmc device,
  17 *                      used to restore active the partition when the RPMB
  18 *                      accesses are finished
  19 */
  20struct optee_private {
  21        struct mmc *rpmb_mmc;
  22        int rpmb_dev_id;
  23        int rpmb_original_part;
  24};
  25
  26struct optee_msg_arg;
  27
  28void optee_suppl_cmd(struct udevice *dev, struct tee_shm *shm_arg,
  29                     void **page_list);
  30
  31#ifdef CONFIG_SUPPORT_EMMC_RPMB
  32/**
  33 * optee_suppl_cmd_rpmb() - route RPMB frames to mmc
  34 * @dev:        device with the selected RPMB partition
  35 * @arg:        OP-TEE message holding the frames to transmit to the mmc
  36 *              and space for the response frames.
  37 *
  38 * Routes signed (MACed) RPMB frames from OP-TEE Secure OS to MMC and vice
  39 * versa to manipulate the RPMB partition.
  40 */
  41void optee_suppl_cmd_rpmb(struct udevice *dev, struct optee_msg_arg *arg);
  42
  43/**
  44 * optee_suppl_rpmb_release() - release mmc device
  45 * @dev:        mmc device
  46 *
  47 * Releases the mmc device and restores the previously selected partition.
  48 */
  49void optee_suppl_rpmb_release(struct udevice *dev);
  50#else
  51static inline void optee_suppl_cmd_rpmb(struct udevice *dev,
  52                                        struct optee_msg_arg *arg)
  53{
  54        debug("OPTEE_MSG_RPC_CMD_RPMB not implemented\n");
  55        arg->ret = TEE_ERROR_NOT_IMPLEMENTED;
  56}
  57
  58static inline void optee_suppl_rpmb_release(struct udevice *dev)
  59{
  60}
  61#endif
  62
  63#ifdef CONFIG_DM_I2C
  64/**
  65 * optee_suppl_cmd_i2c_transfer() - route I2C requests to an I2C chip
  66 * @arg:        OP-TEE message (layout specified in optee_msg.h) defining the
  67 *              transfer mode (read/write), adapter, chip and control flags.
  68 *
  69 * Handles OP-TEE requests to transfer data to the I2C chip on the I2C adapter.
  70 */
  71void optee_suppl_cmd_i2c_transfer(struct optee_msg_arg *arg);
  72#else
  73static inline void optee_suppl_cmd_i2c_transfer(struct optee_msg_arg *arg)
  74{
  75        debug("OPTEE_MSG_RPC_CMD_I2C_TRANSFER not implemented\n");
  76        arg->ret = TEE_ERROR_NOT_IMPLEMENTED;
  77}
  78#endif
  79
  80void *optee_alloc_and_init_page_list(void *buf, ulong len, u64 *phys_buf_ptr);
  81
  82#endif /* __OPTEE_PRIVATE_H */
  83