1 /* 2 * Copyright (c) 2005-2020 Apple Computer, Inc. All rights reserved. 3 * 4 * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ 5 * 6 * This file contains Original Code and/or Modifications of Original Code 7 * as defined in and that are subject to the Apple Public Source License 8 * Version 2.0 (the 'License'). You may not use this file except in 9 * compliance with the License. The rights granted to you under the License 10 * may not be used to create, or enable the creation or redistribution of, 11 * unlawful or unlicensed copies of an Apple operating system, or to 12 * circumvent, violate, or enable the circumvention or violation of, any 13 * terms of an Apple operating system software license agreement. 14 * 15 * Please obtain a copy of the License at 16 * http://www.opensource.apple.com/apsl/ and read it before using this file. 17 * 18 * The Original Code and all software distributed under the License are 19 * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER 20 * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, 21 * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, 22 * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. 23 * Please see the License for the specific language governing rights and 24 * limitations under the License. 25 * 26 * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ 27 */ 28 /* 29 * @OSF_COPYRIGHT@ 30 */ 31 /* 32 * @APPLE_FREE_COPYRIGHT@ 33 */ 34 35 #ifndef _CONSOLE_SERIAL_PROTOS_H_ 36 #define _CONSOLE_SERIAL_PROTOS_H_ 37 38 #ifdef __cplusplus 39 extern "C" { 40 #endif 41 42 #include <stdbool.h> 43 44 void serial_keyboard_init(void); 45 void serial_keyboard_start(void) __dead2; 46 void serial_keyboard_poll(void) __dead2; 47 48 extern uint32_t serialmode; 49 50 #define SERIALMODE_OUTPUT 0x01 51 #define SERIALMODE_INPUT 0x02 52 #define SERIALMODE_SYNCDRAIN 0x04 53 #define SERIALMODE_BASE_TTY 0x08 /* Load Base/Recovery/FVUnlock TTY */ 54 #define SERIALMODE_NO_IOLOG 0x10 /* prevent IOLogs writing to serial */ 55 56 extern uint32_t cons_ops_index; 57 extern const uint32_t nconsops; 58 extern bool disable_serial_output; 59 extern bool disable_iolog_serial_output; 60 61 void console_init(void); 62 63 int _serial_getc(bool wait); 64 int _vcgetc(bool wait); 65 66 struct console_ops { 67 void (*putc)(char, bool); 68 int (*getc)(bool); 69 }; 70 71 boolean_t console_is_serial(void); 72 int switch_to_serial_console(void); 73 int switch_to_video_console(void); 74 void switch_to_old_console(int old_console); 75 76 #define SERIAL_CONS_OPS 0 77 #define VC_CONS_OPS 1 78 79 #ifdef XNU_KERNEL_PRIVATE 80 81 #define SERIAL_CONS_BUF_SIZE 256 82 struct console_printbuf_state { 83 int pos; 84 int total; 85 int flags; 86 #define CONS_PB_WRITE_NEWLINE 0x1 87 #define CONS_PB_CANBLOCK 0x2 88 char str[SERIAL_CONS_BUF_SIZE]; 89 }; 90 91 extern int console_printbuf_drain_initialized; 92 void console_printbuf_state_init(struct console_printbuf_state * data, int write_on_newline, int can_block); 93 void console_printbuf_putc(int ch, void *arg); 94 void console_printbuf_clear(struct console_printbuf_state * info); 95 int console_write_try(char * str, int size); 96 97 98 #endif /* XNU_KERNEL_PRIVATE */ 99 100 #ifdef __cplusplus 101 } 102 #endif 103 104 105 #endif /* _CONSOLE_SERIAL_PROTOS_H_ */ 106