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. 14 */ 15 16 #ifndef __UART_AUTH_H__ 17 #define __UART_AUTH_H__ 18 19 #include <secure.h> 20 #include "hi_boot_rom.h" 21 #include <hi_types.h> 22 23 #define UART_PACKET_START_FLAG 0xDEADBEEF 24 25 #define UART_PACKET_PAYLOAD_MAX 1024 26 27 HI_EXTERN uart_param_stru g_uart_param; 28 HI_EXTERN hi_u32 g_uart_int_type; 29 30 enum { 31 UART_TYPE_ROMBOOT_HANDSHAKE = 0xF0, 32 UART_TYPE_ACK = 0xE1, 33 UART_TYPE_FILE_START = 0xD2, 34 UART_TYPE_FILE_END = 0xC3, 35 UART_TYPE_CMD = 0xB4, 36 UART_TYPE_DATA = 0xA5, 37 UART_TYPE_FLASHBOOT_HANDSHAKE = 0x0F, 38 }; 39 40 typedef struct { 41 hi_u32 start_flag; /* start flag: 0xDEADBEEF */ 42 hi_u16 packet_size; /* Packet length: actual length of data to be transmitted. 43 The length cannot exceed 1024 bytes. 44 CNcomment:报文长度：真实传输数据长度，要求不超过1024 */ 45 hi_u8 type; /* Packet Type。CNcomment：报文类型 */ 46 hi_u8 pad; 47 } packet_data_head; 48 49 typedef struct { 50 packet_data_head head; 51 hi_u8 payload[UART_PACKET_PAYLOAD_MAX]; /**< Packet data */ 52 hi_u16 check_sum; /* Checksum */ 53 hi_u8 rev[2]; /* 2: rev */ 54 } packet_data_info; 55 56 /* UART AUTH context */ 57 typedef struct { 58 hi_u8 status; 59 hi_u8 pad; 60 hi_u16 received; 61 packet_data_info packet; 62 } uart_ctx; 63 64 hi_u32 uart_process(hi_uart uart, hi_u32 interrupt_timeout_ms); 65 66 #endif /* __UART_AUTH_H__ */ 67