projects / apple / xnu.git / blame
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|---|---|---|
| fe8ab488 A |
1 | /* |
| 2 | * Copyright (c) 2013 Apple 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 | #ifndef __TTY_DEV_H__ | |
| 30 | #define __TTY_DEV_H__ | |
| 31 | ||
| 32 | /* | |
| 33 | * ptmx_ioctl is a pointer to a list of pointers to tty structures which is | |
| 34 | * grown, as necessary, copied, and replaced, but never shrunk. The ioctl | |
| 35 | * structures themselves pointed to from this list come and go as needed. | |
| 36 | */ | |
| 37 | struct ptmx_ioctl { | |
| 38 | struct tty *pt_tty; /* pointer to ttymalloc()'ed data */ | |
| 39 | int pt_flags; | |
| 40 | struct selinfo pt_selr; | |
| 41 | struct selinfo pt_selw; | |
| 42 | u_char pt_send; | |
| 43 | u_char pt_ucntl; | |
| 44 | void *pt_devhandle; /* cloned slave device handle */ | |
| 45 | }; | |
| 46 | ||
| 47 | #define PF_PKT 0x0008 /* packet mode */ | |
| 48 | #define PF_STOPPED 0x0010 /* user told stopped */ | |
| 49 | #define PF_REMOTE 0x0020 /* remote and flow controlled input */ | |
| 50 | #define PF_NOSTOP 0x0040 | |
| 51 | #define PF_UCNTL 0x0080 /* user control mode */ | |
| 52 | #define PF_UNLOCKED 0x0100 /* slave unlock (master open resets) */ | |
| 53 | #define PF_OPEN_M 0x0200 /* master is open */ | |
| 54 | #define PF_OPEN_S 0x0400 /* slave is open */ | |
| 55 | ||
| 56 | struct tty_dev_t { | |
| 57 | int master; // master major device number | |
| 58 | int slave; // slave major device number | |
| 59 | unsigned int fix_7828447:1, | |
| 60 | fix_7070978:1, | |
| 61 | mac_notify:1, | |
| 62 | open_reset:1, | |
| 63 | _reserved:28; | |
| 64 | #if __LP64__ | |
| 65 | int _pad; | |
| 66 | #endif | |
| 67 | ||
| 68 | struct tty_dev_t *next; | |
| 69 | ||
| 70 | struct ptmx_ioctl *(*open)(int minor, int flags); | |
| 71 | int (*free)(int minor, int flags); | |
| 72 | int (*name)(int minor, char *buffer, size_t size); | |
| 73 | void (*revoke)(int minor, struct tty *tp); | |
| 74 | }; | |
| 75 | ||
| 76 | extern void tty_dev_register(struct tty_dev_t *dev); | |
| 77 | ||
| 78 | extern int ttnread(struct tty *tp); | |
| 79 | ||
| 80 | #endif // __TTY_DEV_H__ |