1 /* 2 * memconsole.h 3 * 4 * Internal headers of the memory based BIOS console. 5 * 6 * Copyright 2017 Google Inc. 7 * 8 * This program is free software; you can redistribute it and/or modify 9 * it under the terms of the GNU General Public License v2.0 as published by 10 * the Free Software Foundation. 11 * 12 * This program is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * GNU General Public License for more details. 16 */ 17 18 #ifndef __FIRMWARE_GOOGLE_MEMCONSOLE_H 19 #define __FIRMWARE_GOOGLE_MEMCONSOLE_H 20 21 #include <linux/types.h> 22 23 /* 24 * memconsole_setup 25 * 26 * Initialize the memory console, passing the function to handle read accesses. 27 */ 28 void memconsole_setup(ssize_t (*read_func)(char *, loff_t, size_t)); 29 30 /* 31 * memconsole_sysfs_init 32 * 33 * Update memory console length and create binary file 34 * for firmware object. 35 */ 36 int memconsole_sysfs_init(void); 37 38 /* memconsole_exit 39 * 40 * Unmap the console buffer. 41 */ 42 void memconsole_exit(void); 43 44 #endif /* __FIRMWARE_GOOGLE_MEMCONSOLE_H */ 45