1 /* 2 * Copyright (c) 2023 Institute of Parallel And Distributed Systems (IPADS), Shanghai Jiao Tong University (SJTU) 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 #ifndef LIB_PRINTK_H 13 #define LIB_PRINTK_H 14 15 typedef void (*graphic_putc_handler)(char c); 16 extern graphic_putc_handler graphic_putc; 17 18 void set_graphic_putc_handler(graphic_putc_handler f); 19 void printk(const char *fmt, ...); 20 21 int simple_sprintf(char *str, const char *fmt, ...); 22 23 #endif /* LIB_PRINTK_H */