140 lines
4.0 KiB
C
140 lines
4.0 KiB
C
/*
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* BeOS R5 compatible TTY module API
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*
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* Copyright 2008, Haiku Inc. All Rights Reserved.
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* Distributed under the terms of the MIT License.
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*/
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#ifndef _TTY_TTYLAYER_H
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#define _TTY_TTYLAYER_H
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#include <module.h>
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#include <termios.h>
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// XXX: should go away or be opacised
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struct str {
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uchar *buffer;
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uint bufsize, count, tail;
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bool allocated;
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};
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struct ddrover {
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};
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struct ddomain {
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struct ddrover *r;
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bool bg;
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bool locked;
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};
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#define ddbackground(d) ((d)->bg = true)
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typedef bool (*tty_service_func)(struct tty *tty, struct ddrover *rover, uint op);
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struct tty {
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uint nopen;
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uint flags;
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struct ddomain dd;
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struct ddomain ddi; // used in interrupt context
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pid_t pgid;
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struct termios t;
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uint iactivity;
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bool ibusy;
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struct str istr;
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struct str rstr;
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struct str ostr;
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struct winsize wsize;
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tty_service_func service;
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struct sel *sel;
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struct tty *ttysel;
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};
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struct ttyfile {
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struct tty *tty;
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uint flags;
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bigtime_t vtime;
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};
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// flags
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#define TTYCARRIER (1 << 0)
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#define TTYWRITABLE (1 << 1)
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#define TTYWRITING (1 << 2)
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#define TTYREADING (1 << 3)
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#define TTYOSTOPPED (1 << 4)
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#define TTYEXCLUSIVE (1 << 5)
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#define TTYHWDCD (1 << 6)
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#define TTYHWCTS (1 << 7)
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#define TTYHWDSR (1 << 8)
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#define TTYHWRI (1 << 9)
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#define TTYFLOWFORCED (1 << 10)
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// ops
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#define TTYENABLE 0
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#define TTYDISABLE 1
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#define TTYSETMODES 2
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#define TTYOSTART 3
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#define TTYOSYNC 4
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#define TTYISTOP 5
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#define TTYIRESUME 6
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#define TTYSETBREAK 7
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#define TTYCLRBREAK 8
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#define TTYSETDTR 9
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#define TTYCLRDTR 10
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#define TTYGETSIGNALS 11
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typedef struct tty_module_info tty_module_info;
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// this version is compatible with BeOS R5
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struct tty_module_info_r5 {
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// not a real bus manager... no rescan() !
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module_info mi;
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status_t (*ttyopen)(struct ttyfile *, struct ddrover *, tty_service_func);
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status_t (*ttyclose)(struct ttyfile *, struct ddrover *);
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status_t (*ttyfree)(struct ttyfile *, struct ddrover *);
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status_t (*ttyread)(struct ttyfile *, struct ddrover *, char *, size_t *);
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status_t (*ttywrite)(struct ttyfile *, struct ddrover *, const char *, size_t *);
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status_t (*ttycontrol)(struct ttyfile *, struct ddrover *, ulong, void *, size_t);
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void (*ttyinit)(struct tty *, bool);
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void (*ttyilock)(struct tty *, struct ddrover *, bool );
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void (*ttyhwsignal)(struct tty *, struct ddrover *, int, bool);
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int (*ttyin)(struct tty *, struct ddrover *, int);
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int (*ttyout)(struct tty *, struct ddrover *);
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struct ddrover *(*ddrstart)(struct ddrover *);
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void (*ddrdone)(struct ddrover *);
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void (*ddacquire)(struct ddrover *, struct ddomain *);
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};
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// BeOS R5.1d0 has a different module with the same version...
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// we exort this module as version 1.1 to allow using select from drivers
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struct tty_module_info_dano {
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// not a real bus manager... no rescan() !
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module_info mi;
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status_t (*ttyopen)(struct ttyfile *, struct ddrover *, tty_service_func);
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status_t (*ttyclose)(struct ttyfile *, struct ddrover *);
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status_t (*ttyfree)(struct ttyfile *, struct ddrover *);
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status_t (*ttyread)(struct ttyfile *, struct ddrover *, char *, size_t *);
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status_t (*ttywrite)(struct ttyfile *, struct ddrover *, const char *, size_t *);
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status_t (*ttycontrol)(struct ttyfile *, struct ddrover *, ulong, void *, size_t);
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status_t (*ttyselect)(struct ttyfile *, struct ddrover *, uint8, uint32, selectsync *);
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status_t (*ttydeselect)(struct ttyfile *, struct ddrover *, uint8, selectsync *);
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void (*ttyinit)(struct tty *, bool);
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void (*ttyilock)(struct tty *, struct ddrover *, bool );
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void (*ttyhwsignal)(struct tty *, struct ddrover *, int, bool);
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int (*ttyin)(struct tty *, struct ddrover *, int);
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int (*ttyout)(struct tty *, struct ddrover *);
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struct ddrover *(*ddrstart)(struct ddrover *);
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void (*ddrdone)(struct ddrover *);
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void (*ddacquire)(struct ddrover *, struct ddomain *);
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};
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#define B_TTY_MODULE_NAME_R5 "bus_managers/tty/v1"
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#define B_TTY_MODULE_NAME_DANO "bus_managers/tty/v1.1"
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#define B_TTY_MODULE_NAME B_TTY_MODULE_NAME_DANO
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#define tty_module_info tty_module_info_dano
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#endif /* _TTY_TTYLAYER_H */
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