1 /** 2 * Copyright (c) 2020 HiSilicon (Shanghai) Technologies CO., LIMITED. 3 * Licensed under the Apache License, Version 2.0 (the "License"); 4 * you may not use this file except in compliance with the License. 5 * You may obtain a copy of the License at 6 * 7 * http://www.apache.org/licenses/LICENSE-2.0 8 * 9 * Unless required by applicable law or agreed to in writing, software 10 * distributed under the License is distributed on an "AS IS" BASIS, 11 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 * See the License for the specific language governing permissions and 13 * limitations under the License. \n 14 * 15 * Description: Provides at channel service header. Only for AT module. \n 16 */ 17 18 #ifndef AT_CHANNEL_H 19 #define AT_CHANNEL_H 20 21 #include "at_product.h" 22 23 typedef enum { 24 AT_CHANNEL_UNINITIALIZED = 0x0, 25 AT_CHANNEL_FREE, 26 AT_CHANNEL_INTERACTIVITY, 27 AT_CHANNEL_BLOCK 28 } at_channel_state_t; 29 30 at_write_func_t at_channel_get_write_func(at_channel_id_t id); 31 32 void at_channel_check_and_enable(void); 33 34 uint8_t* at_channel_get_data(at_channel_id_t id); 35 36 void at_channel_data_reset(at_channel_id_t id); 37 38 void at_channel_set_state(at_channel_id_t id, at_channel_state_t state); 39 40 void at_channel_data_wait_interactivity(at_channel_id_t id); 41 42 #endif 43