/* * CDDL HEADER START * * The contents of this file are subject to the terms of the * Common Development and Distribution License, Version 1.0 only * (the "License"). You may not use this file except in compliance * with the License. * * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE * or http://www.opensolaris.org/os/licensing. * See the License for the specific language governing permissions * and limitations under the License. * * When distributing Covered Code, include this CDDL HEADER in each * file and include the License file at usr/src/OPENSOLARIS.LICENSE. * If applicable, add the following below this CDDL HEADER, with the * fields enclosed by brackets "[]" replaced with your own identifying * information: Portions Copyright [yyyy] [name of copyright owner] * * CDDL HEADER END */ /* * Copyright (c) 2001 by Sun Microsystems, Inc. * All rights reserved. */ #ifndef _TTYMUX_IMPL_H #define _TTYMUX_IMPL_H #pragma ident "%Z%%M% %I% %E% SMI" #ifdef __cplusplus extern "C" { #endif #include #include /* * Local definitions. */ #define SM_TRBIT(code) (1 << (code)-'@') extern uint_t sm_max_units; #define MAX_LQS (sm_max_units) #define NLUNITS (MAX_LQS + 2) /* * Re-use minor device encoding used by the se(7D) driver. */ #define ASYNC_DEVICE (0) #define OUTLINE (1 << (NBITSMINOR32 - 1)) #define NULL_PROTOCOL 0 #define ASYN_PROTOCOL 1 #define OUTD_PROTOCOL 2 #define DEV_TO_UNIT(dev) (getminor(dev) & ~OUTLINE) #define DEV_TO_PROTOBITS(dev) (getminor(dev) & OUTLINE) /* * Driver id */ #define SM_MOD_ID 0x534d /* * Access modes of the two halves to each others flags * Q uq->flags lq->flags * uq rw r * lq - rw */ /* * A lower queue is associated with an upper queue * (used for synchronising dissasociate reqests with the lower half) * A lower q will not forward messages if SM_UQVALID is set in uqflags. */ #define SM_UQVALID (0x1) /* written by an upper q read by a lower q */ #define SM_OBPCNDEV (0x2) /* set when this device is an OBP console */ /* * unused flags */ #define FLUSHR_PEND (0x1) /* M_FLUSH is expected on all the lr q's */ /* * An open has completed on this stream. */ #define FULLY_OPEN (0x2) #define EXCL_OPEN (0x4) #define SM_CARON (0x8) /* * Flags to disable queues controlled from below. */ #define HANGUP_MODE (0x10) /* not used (sets WERROR_MODE instead) */ #define RERROR_MODE (0x20) /* read error on stream (unset by closing) */ #define WERROR_MODE (0x40) /* write side error on the stream (set by */ /* M_HANGUP/M_ERROR */ /* unset by M_UNHANGUP/M_ERROR) */ #define ERROR_MODE (0x60) /* read error on stream (unset by M_ERROR) */ /* * Flags to disable queues controlled from above. * Also used by set on queues which are OBP consoles */ #define SM_STOPPED (0x080) /* M_STOP has been seen */ #define SM_ISTOPPED (0x100) /* M_STOPI has been seen */ /* * A stream wants something. */ #define WANT_SC (0x200) /* carrier status of a stream required */ #define WANT_CL (0x400) /* CLOCAL status of a stream required */ #define WANT_CD (0x800) /* CD modem status of a line required */ #define WANT_CDSTAT (0xe00) #define WANT_TCSET (0x20000) /* send down initial termios settings */ #define WANT_RENB (0x40000) /* read q is flowcontrolled */ #define SM_IOCPENDING (0x80000) #define SM_CLOSE (0x100000) #define SM_INTERNALIOC (0x200000) #define SM_LOGINREQ (0x400000) #define LOCK_UNIT(u) (mutex_enter(u->sm_umutex)) /* Lock per-stream data */ #define UNLOCK_UNIT(u) (mutex_exit(u->sm_umutex)) /* Unlock per-stream data */ /* * Checks whether an open could potentially block. */ #define BLOCKING(unitp, proto, flag) \ (!(flag & (FNDELAY|FNONBLOCK)) && \ !(proto == OUTLINE) && \ unitp->sm_lqs && \ (unitp->sm_flags & SM_CARON) == 0) /* * Update termios style control flag with a termio style flag. */ #define SM_SETCFLAG(qi, tc) \ qi->sm_ttycommon->t_cflag = \ (qi->sm_ttycommon->t_cflag & 0xffff0000 | (tc)->c_cflag) #define SM_SETLFLAG(qi, tc) \ qi->sm_ttycommon->t_iflag = \ (qi->sm_ttycommon->t_iflag & 0xffff0000 | (tc)->c_iflag) #define SM_WQ(qi) (qi->sm_ttycommon->t_writeq) #define SM_RQ(qi) (qi->sm_ttycommon->t_readq) /* * */ struct sm_iocinfo { int sm_id; int sm_cmd; void *sm_data; }; /* * Perform a per instance search for a specified per stream structure. */ #define get_lqi(ssp, unit) \ ((unit < MAX_LQS) ? &ssp->sm_lqs[unit] : 0) #define get_uqi(ssp, unit) \ ((unit < NLUNITS) ? &ssp->sm_uqs[unit] : NULL) #define CNTRL(c) ((c)&037) #define sm_allocb(size, pri) allocb(size, pri) #define sm_copymsg(mp) ((DB_TYPE(mp) == M_DATA) ? dupmsg(mp) : copymsg(mp)) #define sm_freemsg(mp) freemsg(mp) /* * macro to improve performance. The cond is checked before deciding whether * to create a new stack frame for the debug call * Calls to sm_dbg should not occur in hanging statements - alternatively * bracket SM_CMD with a do .... while (0) */ #define SM_CMD(cond, stmt) { if (cond) stmt; } #define sm_dbg(lvl, args) SM_CMD(sm_ssp->sm_trflag & SM_TRBIT(lvl), \ sm_debug args) #define SM_SLOT_RED 3 #define SM_MAX_SLOT_WAIT 3 #define sm_dev2unit(dev) (getminor(dev) & ~OUTLINE) #define LQI2ASSOC(a, l) \ (a)->ttymux_linkid = (l)->sm_linkid; \ (a)->ttymux_tag = (l)->sm_tag; \ (a)->ttymux_ioflag = (l)->sm_ioflag; \ (a)->ttymux_ldev = (l)->sm_dev; \ (a)->ttymux_udev = ((l)->sm_uqi == 0) ? NODEV : \ makedevice(ddi_driver_major(sm_ssp->sm_dip), \ (l)->sm_uqi->sm_lunit); \ (void) strncpy((a)->ttymux_path, (l)->sm_path, MAXPATHLEN) #define LQI2ASSOC32(a, l) \ (a)->ttymux32_linkid = (l)->sm_linkid; \ (a)->ttymux32_tag = (uint32_t)(l)->sm_tag; \ (a)->ttymux32_ioflag = (l)->sm_ioflag; \ (void) cmpldev(&(a)->ttymux32_ldev, (l)->sm_dev);\ (a)->ttymux32_udev = ((l)->sm_uqi == 0) ? NODEV32 : \ ((void) cmpldev(&(a)->ttymux32_udev, \ makedevice(ddi_driver_major(sm_ssp->sm_dip), \ (l)->sm_uqi->sm_lunit)), \ (a)->ttymux32_udev); \ (void) strncpy((a)->ttymux32_path, (l)->sm_path, MAXPATHLEN) #define CNTRL(c) ((c)&037) /* * 32 bit eqivalents of structures defined in sys/ttymuxuser.h */ typedef struct ttymux_association32 { dev32_t ttymux32_udev; /* the upper device to be associated */ dev32_t ttymux32_ldev; /* the device type of a linked lower stream */ int ttymux32_linkid; /* the linkid of a linked lower stream */ uint32_t ttymux32_tag; /* tagged association */ uint_t ttymux32_ioflag; /* FORINPUT FOROUTPUT FORIO */ char ttymux32_path[MAXPATHLEN]; /* device path */ } ttymux_assoc32_t; typedef struct ttymux_associations32 { uint32_t ttymux32_nlinks; caddr32_t ttymux32_assocs; } ttymux_assocs32_t; #ifdef __cplusplus } #endif #endif /* _TTYMUX_IMPL_H */