X-Git-Url: https://git.saurik.com/apple/xnu.git/blobdiff_plain/9bccf70c0258c7cac2dcb80011b2a964d884c552..c331a0bec715536613c8dd5f34a4e115d5b15824:/bsd/sys/tty.h?ds=sidebyside diff --git a/bsd/sys/tty.h b/bsd/sys/tty.h index c24e3083b..f0f546c48 100644 --- a/bsd/sys/tty.h +++ b/bsd/sys/tty.h @@ -1,23 +1,29 @@ /* * Copyright (c) 2000-2002 Apple Computer, Inc. All rights reserved. * - * @APPLE_LICENSE_HEADER_START@ + * @APPLE_OSREFERENCE_LICENSE_HEADER_START@ * - * The contents of this file constitute Original Code as defined in and - * are subject to the Apple Public Source License Version 1.1 (the - * "License"). You may not use this file except in compliance with the - * License. Please obtain a copy of the License at - * http://www.apple.com/publicsource and read it before using this file. + * This file contains Original Code and/or Modifications of Original Code + * as defined in and that are subject to the Apple Public Source License + * Version 2.0 (the 'License'). You may not use this file except in + * compliance with the License. The rights granted to you under the License + * may not be used to create, or enable the creation or redistribution of, + * unlawful or unlicensed copies of an Apple operating system, or to + * circumvent, violate, or enable the circumvention or violation of, any + * terms of an Apple operating system software license agreement. * - * This Original Code and all software distributed under the License are - * distributed on an "AS IS" basis, WITHOUT WARRANTY OF ANY KIND, EITHER + * Please obtain a copy of the License at + * http://www.opensource.apple.com/apsl/ and read it before using this file. + * + * The Original Code and all software distributed under the License are + * distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER * EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES, * INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY, - * FITNESS FOR A PARTICULAR PURPOSE OR NON-INFRINGEMENT. Please see the - * License for the specific language governing rights and limitations - * under the License. + * FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT. + * Please see the License for the specific language governing rights and + * limitations under the License. * - * @APPLE_LICENSE_HEADER_END@ + * @APPLE_OSREFERENCE_LICENSE_HEADER_END@ */ /* Copyright (c) 1997 Apple Computer, Inc. All Rights Reserved */ /*- @@ -68,22 +74,13 @@ #include #include /* For struct selinfo. */ -#ifdef __APPLE_API_UNSTABLE -#ifndef __APPLE__ -/* - * Clists are character lists, which is a variable length linked list - * of cblocks, with a count of the number of characters in the list. - */ -struct clist { - int c_cc; /* Number of characters in the clist. */ - int c_cbcount; /* Number of cblocks. */ - int c_cbmax; /* Max # cblocks allowed for this clist. */ - int c_cbreserved; /* # cblocks reserved for this clist. */ - char *c_cf; /* Pointer to the first cblock. */ - char *c_cl; /* Pointer to the last cblock. */ -}; -#else /* __APPLE__ */ +#ifdef KERNEL + +__BEGIN_DECLS +#include +__END_DECLS + /* * NetBSD Clists are actually ring buffers. The c_cc, c_cf, c_cl fields have * exactly the same behaviour as in true clists. @@ -106,7 +103,6 @@ struct clist { #define TTYCLSIZE 1024 #endif -#endif /* __APPLE__ */ /* * Per-tty structure. @@ -116,6 +112,8 @@ struct clist { * (low, high, timeout). */ struct tty { + lck_mtx_t t_lock; /* Per tty lock */ + struct clist t_rawq; /* Device raw input queue. */ long t_rawcc; /* Raw input queue statistics. */ struct clist t_canq; /* Device canonical queue. */ @@ -134,19 +132,22 @@ struct tty { struct termios t_termios; /* Termios state. */ struct winsize t_winsize; /* Window size. */ /* Start output. */ - void (*t_oproc) __P((struct tty *)); + void (*t_oproc)(struct tty *); /* Stop output. */ - void (*t_stop) __P((struct tty *, int)); + void (*t_stop)(struct tty *, int); /* Set hardware state. */ - int (*t_param) __P((struct tty *, struct termios *)); + int (*t_param)(struct tty *, struct termios *); void *t_sc; /* XXX: net/if_sl.c:sl_softc. */ int t_column; /* Tty output column. */ int t_rocount, t_rocol; /* Tty. */ int t_hiwat; /* High water mark. */ int t_lowat; /* Low water mark. */ int t_gen; /* Generation number. */ + void *t_iokit; /* IOKit management */ }; +#define TTY_NULL (struct tty *)0 + #define t_cc t_termios.c_cc #define t_cflag t_termios.c_cflag #define t_iflag t_termios.c_iflag @@ -173,11 +174,13 @@ struct tty { #define TTYHOG 1024 #endif -#ifdef KERNEL #define TTMAXHIWAT roundup(2048, CBSIZE) #define TTMINHIWAT roundup(100, CBSIZE) #define TTMAXLOWAT 256 #define TTMINLOWAT 32 +#else +struct tty; +struct clist; #endif /* KERNEL */ /* These flags are kept in t_state. */ @@ -247,13 +250,7 @@ struct speedtab { #define TTY_OE 0x04000000 /* Overrun error */ #define TTY_BI 0x08000000 /* Break condition */ -/* Is tp controlling terminal for p? */ -#define isctty(p, tp) \ - ((p)->p_session == (tp)->t_session && (p)->p_flag & P_CONTROLT) - -/* Is p in background of tp? */ -#define isbackground(p, tp) \ - (isctty((p), (tp)) && (p)->p_pgrp != (tp)->t_pgrp) +#ifdef KERNEL /* Unique sleep addresses. */ #define TSA_CARR_ON(tp) ((void *)&(tp)->t_rawq) @@ -265,87 +262,72 @@ struct speedtab { #define TSA_PTS_READ(tp) ((void *)&(tp)->t_canq) -#ifdef KERNEL __BEGIN_DECLS -#ifndef __APPLE__ -extern struct tty *constty; /* Temporary virtual console. */ - -int b_to_q __P((char *cp, int cc, struct clist *q)); -void catq __P((struct clist *from, struct clist *to)); -void clist_alloc_cblocks __P((struct clist *q, int ccmax, int ccres)); -void clist_free_cblocks __P((struct clist *q)); -/* void clist_init __P((void)); */ /* defined in systm.h for main() */ -int getc __P((struct clist *q)); -void ndflush __P((struct clist *q, int cc)); -int ndqb __P((struct clist *q, int flag)); -char *nextc __P((struct clist *q, char *cp, int *c)); -int putc __P((int c, struct clist *q)); -int q_to_b __P((struct clist *q, char *cp, int cc)); -int unputc __P((struct clist *q)); - -int ttcompat __P((struct tty *tp, int com, caddr_t data, int flag)); -int ttsetcompat __P((struct tty *tp, int *com, caddr_t data, struct termios *term)); -#else /* __APPLE__ */ -int b_to_q __P((u_char *cp, int cc, struct clist *q)); -void catq __P((struct clist *from, struct clist *to)); -void clist_init __P((void)); -int getc __P((struct clist *q)); -void ndflush __P((struct clist *q, int cc)); -int ndqb __P((struct clist *q, int flag)); -u_char *firstc __P((struct clist *clp, int *c)); -u_char *nextc __P((struct clist *q, u_char *cp, int *c)); -int putc __P((int c, struct clist *q)); -int q_to_b __P((struct clist *q, u_char *cp, int cc)); -int unputc __P((struct clist *q)); -int clalloc __P((struct clist *clp, int size, int quot)); -void clfree __P((struct clist *clp)); +int b_to_q(const u_char *cp, int cc, struct clist *q); +void catq(struct clist *from, struct clist *to); +void clist_init(void); +int getc(struct clist *q); +void ndflush(struct clist *q, int cc); +int ndqb(struct clist *q, int flag); +u_char *firstc (struct clist *clp, int *c); +u_char *nextc(struct clist *q, u_char *cp, int *c); +int putc(int c, struct clist *q); +int q_to_b(struct clist *q, u_char *cp, int cc); +int unputc(struct clist *q); +int clalloc(struct clist *clp, int size, int quot); +void clfree(struct clist *clp); +void cinit(void); +void clrbits(u_char *cp, int off, int len); #ifdef KERNEL_PRIVATE -int ttcompat __P((struct tty *tp, u_long com, caddr_t data, int flag, - struct proc *p)); -int ttsetcompat __P((struct tty *tp, u_long *com, caddr_t data, struct termios *term)); +void tty_init(void); +/* + * The locked version of this function is used from routines which hold + * the tty_lock(), such as ttcompat() in tty_compat.c + */ +int ttioctl_locked(struct tty *tp, u_long com, caddr_t data, int flag, + struct proc *p); + +int ttcompat(struct tty *tp, u_long com, caddr_t data, int flag, + struct proc *p); #endif /* KERNEL_PRIVATE */ -#endif /* __APPLE__ */ -void termioschars __P((struct termios *t)); -int tputchar __P((int c, struct tty *tp)); -#ifndef __APPLE__ -int ttioctl __P((struct tty *tp, int com, void *data, int flag)); -#else -int ttioctl __P((struct tty *tp, u_long com, caddr_t data, int flag, - struct proc *p)); -#endif -int ttread __P((struct tty *tp, struct uio *uio, int flag)); -void ttrstrt __P((void *tp)); -int ttyselect __P((struct tty *tp, int rw, void * wql, struct proc *p)); -int ttselect __P((dev_t dev, int rw, void * wql, struct proc *p)); -void ttsetwater __P((struct tty *tp)); -int ttspeedtab __P((int speed, struct speedtab *table)); -int ttstart __P((struct tty *tp)); -void ttwakeup __P((struct tty *tp)); -int ttwrite __P((struct tty *tp, struct uio *uio, int flag)); -void ttwwakeup __P((struct tty *tp)); -void ttyblock __P((struct tty *tp)); -void ttychars __P((struct tty *tp)); -int ttycheckoutq __P((struct tty *tp, int wait)); -int ttyclose __P((struct tty *tp)); -void ttyflush __P((struct tty *tp, int rw)); -void ttyinfo __P((struct tty *tp)); -int ttyinput __P((int c, struct tty *tp)); -int ttylclose __P((struct tty *tp, int flag)); -int ttymodem __P((struct tty *tp, int flag)); -int ttyopen __P((dev_t device, struct tty *tp)); -int ttysleep __P((struct tty *tp, - void *chan, int pri, char *wmesg, int timeout)); -int ttywait __P((struct tty *tp)); -struct tty *ttymalloc __P((void)); -void ttyfree __P((struct tty *)); +void tty_lock(struct tty *tp); +void tty_unlock(struct tty *tp); + +void termioschars(struct termios *t); +int tputchar(int c, struct tty *tp); +int ttioctl(struct tty *tp, u_long com, caddr_t data, int flag, + struct proc *p); +int ttread(struct tty *tp, struct uio *uio, int flag); +int ttyselect(struct tty *tp, int rw, void * wql, struct proc *p); +int ttselect(dev_t dev, int rw, void * wql, struct proc *p); +void ttsetwater(struct tty *tp); +int ttspeedtab(int speed, struct speedtab *table); +int ttstart(struct tty *tp); +void ttwakeup(struct tty *tp); +int ttwrite(struct tty *tp, struct uio *uio, int flag); +void ttwwakeup(struct tty *tp); +void ttyblock(struct tty *tp); +int ttycheckoutq(struct tty *tp, int wait); +int ttyclose(struct tty *tp); /* LEGACY: avoid using */ +void ttyflush(struct tty *tp, int rw); +void ttyinfo(struct tty *tp); +void ttyinfo_locked(struct tty *tp); +int ttyinput(int c, struct tty *tp); +int ttylclose(struct tty *tp, int flag); +int ttymodem(struct tty *tp, int flag); +int ttyopen(dev_t device, struct tty *tp); +int ttysleep(struct tty *tp, + void *chan, int pri, const char *wmesg, int timeout); +int ttywait(struct tty *tp); +struct tty *ttymalloc(void); +void ttyfree(struct tty *); __END_DECLS #endif /* KERNEL */ -#endif /* __APPLE_API_UNSTABLE */ #endif /* !_SYS_TTY_H_ */