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 #define SERIALMODE_DKLOG 0x20 /* allow DriverKit os_log/IOLogs writing to serial */ 56 57 extern uint32_t cons_ops_index; 58 extern const uint32_t nconsops; 59 extern bool disable_serial_output; 60 extern bool disable_iolog_serial_output; 61 extern bool enable_dklog_serial_output; 62 63 void console_init(void); 64 65 int _serial_getc(bool wait); 66 int _vcgetc(bool wait); 67 68 struct console_ops { 69 void (*putc)(char, bool); 70 int (*getc)(bool); 71 }; 72 73 boolean_t console_is_serial(void); 74 int switch_to_serial_console(void); 75 int switch_to_video_console(void); 76 void switch_to_old_console(int old_console); 77 78 #define SERIAL_CONS_OPS 0 79 #define VC_CONS_OPS 1 80 81 #ifdef XNU_KERNEL_PRIVATE 82 83 #define SERIAL_CONS_BUF_SIZE 256 84 struct console_printbuf_state { 85 int pos; 86 int total; 87 int flags; 88 #define CONS_PB_WRITE_NEWLINE 0x1 89 #define CONS_PB_CANBLOCK 0x2 90 char str[SERIAL_CONS_BUF_SIZE]; 91 }; 92 93 extern int console_printbuf_drain_initialized; 94 void console_printbuf_state_init(struct console_printbuf_state * data, int write_on_newline, int can_block); 95 void console_printbuf_putc(int ch, void *arg); 96 void console_printbuf_clear(struct console_printbuf_state * info); 97 int console_write_try(char * str, int size); 98 99 100 #endif /* XNU_KERNEL_PRIVATE */ 101 102 #ifdef __cplusplus 103 } 104 #endif 105 106 107 #endif /* _CONSOLE_SERIAL_PROTOS_H_ */ 108