osfmk/console/serial_protos.h

   1 /*
   2  * Copyright (c) 2005-2006 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
  43 void serial_keyboard_init(void);
  44 void serial_keyboard_start(void) __dead2;
  45 void serial_keyboard_poll(void) __dead2;
  46
  47 extern uint32_t serialmode;
  48
  49 #define SERIALMODE_OUTPUT    0x1
  50 #define SERIALMODE_INPUT     0x2
  51 #define SERIALMODE_SYNCDRAIN 0x4
  52 #define SERIALMODE_BASE_TTY  0x8 /* Load Base/Recovery/FVUnlock TTY */
  53
  54 extern uint32_t cons_ops_index;
  55 extern const uint32_t nconsops;
  56 extern unsigned int disable_serial_output;
  57 #if defined(__arm__) || defined(__arm64__)
  58 /* ARM64_TODO */
  59 extern void *console_cpu_alloc(boolean_t);
  60 extern void console_cpu_free(void *);
  61 void console_init(void);
  62 #endif
  63
  64 int _serial_getc(int unit, int line, boolean_t wait, boolean_t raw);
  65
  66 struct console_ops {
  67         void    (*putc)(int, int, int);
  68         int     (*getc)(int, int, boolean_t, boolean_t);
  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_ */