// Licensed to the Apache Software Foundation (ASF) under one
// or more contributor license agreements.  See the NOTICE file
// distributed with this work for additional information
// regarding copyright ownership.  The ASF licenses this file
// to you under the Apache License, Version 2.0 (the
// "License"); you may not use this file except in compliance
// with the License.  You may obtain a copy of the License at
//
//   http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing,
// software distributed under the License is distributed on an
// "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
// KIND, either express or implied.  See the License for the
// specific language governing permissions and limitations
// under the License.

#[cfg(feature = "std")]
use std::os::raw::*;
#[cfg(not(feature = "std"))]
use core::ffi::*;
use super::tee_api_types::*;
use super::utee_syscalls::*;
use super::utee_types::*;

pub const TA_FLAG_SINGLE_INSTANCE: u32 = 1 << 2;
pub const TA_FLAG_MULTI_SESSION: u32 = 1 << 3;
pub const TA_FLAG_INSTANCE_KEEP_ALIVE: u32 = 1 << 4;
pub const TA_FLAG_SECURE_DATA_PATH: u32 = 1 << 5;
pub const TA_FLAG_REMAP_SUPPORT: u32 = 1 << 6;
pub const TA_FLAG_CACHE_MAINTENANCE: u32 = 1 << 7;

pub const TA_FLAG_EXEC_DDR: u32 = 0;
pub const TA_FLAG_USER_MODE: u32 = 0;
#[repr(C)]
pub struct ta_head {
    pub uuid: TEE_UUID,
    pub stack_size: u32,
    pub flags: u32,
    pub depr_entry: u64,
}

extern "C" {
    pub fn __utee_entry(func: c_ulong, session_id: c_ulong, up: *mut utee_params, cmd_id: c_ulong) -> TEE_Result;
}

#[no_mangle]
pub fn __ta_entry(func: c_ulong, session_id: c_ulong, up: *mut utee_params, cmd_id: c_ulong) -> ! {
    let res: u32 = unsafe { __utee_entry(func, session_id, up, cmd_id) };

    unsafe { _utee_return(res.into()) };
}

unsafe impl Sync for ta_head {}

pub const TA_PROP_STR_SINGLE_INSTANCE: *const c_uchar = "gpd.ta.singleInstance\0".as_ptr();
pub const TA_PROP_STR_MULTI_SESSION: *const c_uchar = "gpd.ta.multiSession\0".as_ptr();
pub const TA_PROP_STR_KEEP_ALIVE: *const c_uchar = "gpd.ta.instanceKeepAlive\0".as_ptr();
pub const TA_PROP_STR_DATA_SIZE: *const c_uchar = "gpd.ta.dataSize\0".as_ptr();
pub const TA_PROP_STR_STACK_SIZE: *const c_uchar = "gpd.ta.stackSize\0".as_ptr();
pub const TA_PROP_STR_VERSION: *const c_uchar = "gpd.ta.version\0".as_ptr();
pub const TA_PROP_STR_DESCRIPTION: *const c_uchar = "gpd.ta.description\0".as_ptr();
pub const TA_PROP_STR_UNSAFE_PARAM: *const c_uchar = "op-tee.unsafe_param\0".as_ptr();
pub const TA_PROP_STR_REMAP: *const c_uchar = "op-tee.remap\0".as_ptr();
pub const TA_PROP_STR_CACHE_SYNC: *const c_uchar = "op-tee.cache_sync\0".as_ptr();

#[repr(C)]
pub enum user_ta_prop_type {
    USER_TA_PROP_TYPE_BOOL,
    USER_TA_PROP_TYPE_U32,
    USER_TA_PROP_TYPE_UUID,
    USER_TA_PROP_TYPE_IDENTITY,
    USER_TA_PROP_TYPE_STRING,
    USER_TA_PROP_TYPE_BINARY_BLOCK,
}

#[repr(C)]
pub struct user_ta_property {
    pub name: *const c_uchar,
    pub prop_type: user_ta_prop_type,
    pub value: *mut c_void,
}

unsafe impl Sync for user_ta_property {}