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Cider Isn't Darwin Emulation, Really
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C
at android
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#ifndef _SYS_TTY_H_#define _SYS_TTY_H_
#include <sys/appleapiopts.h>#include <sys/cdefs.h>#include <sys/termios.h>#include <sys/select.h> /* For struct selinfo. */
#ifdef KERNEL
__BEGIN_DECLS#include <kern/locks.h>__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. * if c_cq is NULL, the ring buffer has no TTY_QUOTE functionality * (but, saves memory and cpu time) * * *DON'T* play with c_cs, c_ce, c_cq, or c_cl outside tty_subr.c!!! */struct clist { int c_cc; /* count of characters in queue */ int c_cn; /* total ring buffer length */ u_char *c_cf; /* points to first character */ u_char *c_cl; /* points to next open character */ u_char *c_cs; /* start of ring buffer */ u_char *c_ce; /* c_ce + c_len */ u_char *c_cq; /* N bits/bytes long, see tty_subr.c */};
#ifndef TTYCLSIZE#define TTYCLSIZE 1024#endif
/* * Per-tty structure. * * Should be split in two, into device and tty drivers. * Glue could be masks of what to echo and circular buffer * (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. */ long t_cancc; /* Canonical queue statistics. */ struct clist t_outq; /* Device output queue. */ long t_outcc; /* Output queue statistics. */ int t_line; /* Interface to device drivers. */ dev_t t_dev; /* Device. */ int t_state; /* Device and driver (TS*) state. */ int t_flags; /* Tty flags. */ int t_timeout; /* Timeout for ttywait() */ struct pgrp *t_pgrp; /* Foreground process group. */ struct session *t_session; /* Enclosing session. */ struct selinfo t_rsel; /* Tty read/oob select. */ struct selinfo t_wsel; /* Tty write select. */ struct termios t_termios; /* Termios state. */ struct winsize t_winsize; /* Window size. */ /* Start output. */ void (*t_oproc)(struct tty *); /* Stop output. */ void (*t_stop)(struct tty *, int); /* Set hardware state. */ 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 */ int t_refcnt; /* reference count */};
#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#define t_ispeed t_termios.c_ispeed#define t_lflag t_termios.c_lflag#define t_min t_termios.c_min#define t_oflag t_termios.c_oflag#define t_ospeed t_termios.c_ospeed#define t_time t_termios.c_time
#define TTIPRI 25 /* Sleep priority for tty reads. */#define TTOPRI 26 /* Sleep priority for tty writes. */
/* * User data unfortunately has to be copied through buffers on the way to * and from clists. The buffers are on the stack so their sizes must be * fairly small. */#define IBUFSIZ 384 /* Should be >= max value of MIN. */#define OBUFSIZ 100
#ifndef TTYHOG#define TTYHOG 1024#endif
#define TTMAXHIWAT roundup(2048, CBSIZE)#define TTMINHIWAT roundup(100, CBSIZE)#define TTMAXLOWAT 256#define TTMINLOWAT 32#elsestruct tty;struct clist;#endif /* KERNEL */
/* These flags are kept in t_state. */#define TS_SO_OLOWAT 0x00001 /* Wake up when output <= low water. */#define TS_ASYNC 0x00002 /* Tty in async I/O mode. */#define TS_BUSY 0x00004 /* Draining output. */#define TS_CARR_ON 0x00008 /* Carrier is present. */#define TS_FLUSH 0x00010 /* Outq has been flushed during DMA. */#define TS_ISOPEN 0x00020 /* Open has completed. */#define TS_TBLOCK 0x00040 /* Further input blocked. */#define TS_TIMEOUT 0x00080 /* Wait for output char processing. */#define TS_TTSTOP 0x00100 /* Output paused. */#ifdef notyet#define TS_WOPEN 0x00200 /* Open in progress. */#endif#define TS_XCLUDE 0x00400 /* Tty requires exclusivity. */
/* State for intra-line fancy editing work. */#define TS_BKSL 0x00800 /* State for lowercase \ work. */#define TS_CNTTB 0x01000 /* Counting tab width, ignore FLUSHO. */#define TS_ERASE 0x02000 /* Within a \.../ for PRTRUB. */#define TS_LNCH 0x04000 /* Next character is literal. */#define TS_TYPEN 0x08000 /* Retyping suspended input (PENDIN). */#define TS_LOCAL (TS_BKSL | TS_CNTTB | TS_ERASE | TS_LNCH | TS_TYPEN)
/* Extras. */#define TS_CAN_BYPASS_L_RINT 0x010000 /* Device in "raw" mode. */#define TS_CONNECTED 0x020000 /* Connection open. */#define TS_SNOOP 0x040000 /* Device is being snooped on. */#define TS_SO_OCOMPLETE 0x080000 /* Wake up when output completes. */#define TS_ZOMBIE 0x100000 /* Connection lost. */
/* Hardware flow-control-invoked bits. */#define TS_CAR_OFLOW 0x200000 /* For MDMBUF (XXX handle in driver). */#ifdef notyet#define TS_CTS_OFLOW 0x400000 /* For CCTS_OFLOW. */#define TS_DSR_OFLOW 0x800000 /* For CDSR_OFLOW. */#endif
#define TS_IOCTL_NOT_OK 0x1000000 /* Workaround <rdar://....> */
/* Character type information. */#define ORDINARY 0#define CONTROL 1#define BACKSPACE 2#define NEWLINE 3#define TAB 4#define VTAB 5#define RETURN 6
struct speedtab { int sp_speed; /* Speed. */ int sp_code; /* Code. */};
/* Modem control commands (driver). */#define DMSET 0#define DMBIS 1#define DMBIC 2#define DMGET 3
/* Flags on a character passed to ttyinput. */#define TTY_CHARMASK 0x000000ff /* Character mask */#define TTY_QUOTE 0x00000100 /* Character quoted */#define TTY_ERRORMASK 0xff000000 /* Error mask */#define TTY_FE 0x01000000 /* Framing error */#define TTY_PE 0x02000000 /* Parity error */#define TTY_OE 0x04000000 /* Overrun error */#define TTY_BI 0x08000000 /* Break condition */
#ifdef KERNEL
/* Unique sleep addresses. */#define TSA_CARR_ON(tp) ((void *)&(tp)->t_rawq)#define TSA_HUP_OR_INPUT(tp) ((void *)&(tp)->t_rawq.c_cf)#define TSA_OCOMPLETE(tp) ((void *)&(tp)->t_outq.c_cl)#define TSA_OLOWAT(tp) ((void *)&(tp)->t_outq)#define TSA_PTC_READ(tp) ((void *)&(tp)->t_outq.c_cf)#define TSA_PTC_WRITE(tp) ((void *)&(tp)->t_rawq.c_cl)#define TSA_PTS_READ(tp) ((void *)&(tp)->t_canq)
__BEGIN_DECLS
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_PRIVATEvoid 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 */
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 /* !_SYS_TTY_H_ */