1 /* 2 * Copyright (c) 2021 Huawei Device Co., Ltd. 3 * 4 * HDF is dual licensed: you can use it either under the terms of 5 * the GPL, or the BSD license, at your option. 6 * See the LICENSE file in the root of this repository for complete details. 7 */ 8 9 #ifndef UART_IF_H 10 #define UART_IF_H 11 12 #include <stdint.h> 13 14 #define UART_DEV_SERVICE_NAME_PREFIX "HDF_PLATFORM_UART_%d" 15 #define MAX_DEV_NAME_SIZE 32 16 17 enum { 18 UART_WRITE = 1 19 }; 20 21 struct DevHandle { 22 void *object; 23 }; 24 25 struct DevHandle *UartOpen(uint32_t port); 26 int32_t UartWrite(struct DevHandle *handle, uint8_t *data, uint32_t size); 27 void UartClose(struct DevHandle *handle); 28 29 #endif // UART_IF_H