1 /* 2 * Copyright (C) 2022 Huawei Technologies Co., Ltd. 3 * Licensed under the Mulan PSL v2. 4 * You can use this software according to the terms and conditions of the Mulan PSL v2. 5 * You may obtain a copy of Mulan PSL v2 at: 6 * http://license.coscl.org.cn/MulanPSL2 7 * THIS SOFTWARE IS PROVIDED ON AN "AS IS" BASIS, WITHOUT WARRANTIES OF ANY KIND, EITHER EXPRESS OR 8 * IMPLIED, INCLUDING BUT NOT LIMITED TO NON-INFRINGEMENT, MERCHANTABILITY OR FIT FOR A PARTICULAR 9 * PURPOSE. 10 * See the Mulan PSL v2 for more details. 11 */ 12 #include <ipclib.h> 13 14 #define PATH_NAME "TEEGlobalTask" 15 acquire_gtask_channel(void)16cref_t acquire_gtask_channel(void) 17 { 18 int32_t rc; 19 cref_t rref; 20 21 rc = ipc_get_ch_from_path(PATH_NAME, &rref); 22 if (rc != 0) 23 return ((uint64_t)(((unsigned int)rc) & 0xffffffff)); 24 return rref; 25 } 26