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/*
* 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 2004 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */
/* All Rights Reserved */
#ifndef _SYS_LDTERM_H
#define _SYS_LDTERM_H
#pragma ident "%Z%%M% %I% %E% SMI" /* SVr4.0 11.5 */
#ifdef __cplusplus
extern "C" {
#endif
#define IBSIZE 16 /* "standard" input data block size */
#define OBSIZE 64 /* "standard" output data block size */
#define EBSIZE 16 /* "standard" echo data block size */
#ifndef MIN
#define MIN(a, b) (((a) < (b)) ? (a) : (b))
#endif
#define V_MIN tp->t_modes.c_cc[VMIN]
#define V_TIME tp->t_modes.c_cc[VTIME]
#define RAW_MODE !(tp->t_modes.c_lflag & ICANON)
#define CANON_MODE (tp->t_modes.c_lflag & ICANON)
/* flow control defines */
#define TTXOLO 132
#define TTXOHI 180
#define HIWAT 1024
#define LOWAT 200
#define LDCHUNK 512
/*
* The following for EUC and also other types of codesets.
*/
#define EUCSIZE sizeof (struct eucioc)
#define EUCIN 0 /* copying eucioc_t IN from ioctl */
#define EUCOUT 1 /* copying it OUT to user format */
/*
* One assumption made throughout this module is: EUC characters have
* a display width less than 255. Also, assumed around, is that they
* consist of < 256 bytes, but we don't worry much about that.
*/
#define EUC_TWIDTH 255 /* Width of a TAB, as returned by */
/* "ldterm_dispwidth" */
#define EUC_BSWIDTH 254 /* Width of a backspace as returned */
#define EUC_NLWIDTH 253 /* newline & cr */
#define EUC_CRWIDTH 252
#define UNKNOWN_WIDTH 251
#define EUC_MAXW 4 /* max display width and memory width, both */
#define EUC_WARNCNT 20 /* # bad EUC erase attempts before hollering */
/* The next version will be the current LDTERM_DATA_VERSION + 1. */
#define LDTERM_DATA_VERSION 1
/*
* Supported codeset types:
* When you are adding a new codeset type, do not add any new codeset type
* value that is smaller than LDTERM_CS_TYPE_MIN. You will also need to
* add the new codeset type sequentially and also increase LDTERM_CS_TYPE_MAX
* so that the LDTERM_CS_TYPE_MAX will be always equal to the last, new
* codeset type value.
*
* Whenever you increase the LDTERM_CS_TYPE_MAX, you will also need to
* increase the LDTERM_DATA_VERSION and also update the ldterm.c so that
* ldterm will have proper version control.
*/
#define LDTERM_CS_TYPE_MIN 1
#define LDTERM_CS_TYPE_EUC 1
#define LDTERM_CS_TYPE_PCCS 2
#define LDTERM_CS_TYPE_UTF8 3
#define LDTERM_CS_TYPE_MAX 3
/*
* The maximum number of bytes in a character of the codeset that
* can be handled by ldterm.
*/
#define LDTERM_CS_MAX_BYTE_LENGTH 8
/*
* The maximum number of sub-codesets in a codeset that can be
* handled by ldterm.
*/
#define LDTERM_CS_MAX_CODESETS 10
/* The maximum and minimum sub-codeset numbers possible in EUC codeset. */
#define LDTERM_CS_TYPE_EUC_MIN_SUBCS 0
#define LDTERM_CS_TYPE_EUC_MAX_SUBCS 3
/* The maximum and minimum sub-codeset numbers possible in PCCS codeset. */
#define LDTERM_CS_TYPE_PCCS_MIN_SUBCS 1
#define LDTERM_CS_TYPE_PCCS_MAX_SUBCS LDTERM_CS_MAX_CODESETS
/* Some UTF-8 related values: */
/* The maximum and minimum UTF-8 character subsequent byte values. */
#define LDTERM_CS_TYPE_UTF8_MIN_BYTE 0x80
#define LDTERM_CS_TYPE_UTF8_MAX_BYTE 0xbf
/* Some maximum and minimum character values in UTF-32. */
#define LDTERM_CS_TYPE_UTF8_MAX_P00 0x00ffff
#define LDTERM_CS_TYPE_UTF8_MAX_P01 0x01ffff
#define LDTERM_CS_TYPE_UTF8_MIN_CJKEXTB 0x020000
#define LDTERM_CS_TYPE_UTF8_MAX_CJKEXTB 0x02a6d6
#define LDTERM_CS_TYPE_UTF8_MIN_CJKCOMP 0x02f800
#define LDTERM_CS_TYPE_UTF8_MAX_CJKCOMP 0x02fa1d
#define LDTERM_CS_TYPE_UTF8_MIN_P14 0x0e0000
#define LDTERM_CS_TYPE_UTF8_MAX_P14 0x0e007f
#define LDTERM_CS_TYPE_UTF8_MIN_VARSEL 0x0e0100
#define LDTERM_CS_TYPE_UTF8_MAX_VARSEL 0x0e01ef
#define LDTERM_CS_TYPE_UTF8_MIN_P15 0x0f0000
#define LDTERM_CS_TYPE_UTF8_MAX_P15 0x0ffffd
#define LDTERM_CS_TYPE_UTF8_MIN_P16 0x100000
#define LDTERM_CS_TYPE_UTF8_MAX_P16 0x10fffd
/* Bit shift number and mask values for conversion from UTF-8 to UCS-4. */
#define LDTERM_CS_TYPE_UTF8_SHIFT_BITS 6
#define LDTERM_CS_TYPE_UTF8_BIT_MASK 0x3f
/*
* The following data structure is to provide codeset-specific
* information for EUC and PC originated codesets (ldterm_eucpc_data_t)
*/
struct _ldterm_eucpc_data {
uchar_t byte_length;
uchar_t screen_width;
uchar_t msb_start;
uchar_t msb_end;
};
typedef struct _ldterm_eucpc_data ldterm_eucpc_data_t;
/* ldterm codeset data information for user side. */
struct _ldterm_cs_data_user {
uchar_t version; /* version: 1 ~ 255 */
uchar_t codeset_type;
uchar_t csinfo_num; /* the # of codesets */
uchar_t pad;
char locale_name[MAXNAMELEN];
ldterm_eucpc_data_t eucpc_data[LDTERM_CS_MAX_CODESETS];
/* width data */
};
typedef struct _ldterm_cs_data_user ldterm_cs_data_user_t;
/* ldterm codeset data information for ldterm. */
struct _ldterm_cs_data {
uchar_t version; /* version: 1 ~ 255 */
uchar_t codeset_type;
uchar_t csinfo_num; /* the # of codesets */
uchar_t pad;
char *locale_name;
ldterm_eucpc_data_t eucpc_data[LDTERM_CS_MAX_CODESETS];
/* width data */
};
typedef struct _ldterm_cs_data ldterm_cs_data_t;
/*
* The following data structure is to handle Unicode codeset.
* To represent a single Unicode plane, it requires to have 16384
* 'ldterm_unicode_data_cell_t' elements.
*/
struct _ldterm_unicode_data_cell {
uchar_t u0:2;
uchar_t u1:2;
uchar_t u2:2;
uchar_t u3:2;
};
typedef struct _ldterm_unicode_data_cell ldterm_unicode_data_cell_t;
/* The following function pointers point the current codeset methods. */
typedef struct _ldterm_cs_methods {
int (*ldterm_dispwidth)(uchar_t, void *, int);
int (*ldterm_memwidth)(uchar_t, void *);
} ldterm_cs_methods_t;
typedef struct ldterm_mod {
struct termios t_modes; /* Effective modes set by the provider below */
struct termios t_amodes; /* Apparent modes for user programs */
struct termios t_dmodes; /* Modes that driver wishes to process */
unsigned int t_state; /* internal state of ldterm module */
int t_line; /* output line of tty */
int t_col; /* output column of tty */
int t_rocount; /* number of chars echoed since last output */
int t_rocol; /* column in which first such char appeared */
mblk_t *t_message; /* pointer to first mblk in message being */
/* built */
mblk_t *t_endmsg; /* pointer to last mblk in that message */
size_t t_msglen; /* number of characters in that message */
mblk_t *t_echomp; /* echoed output being assembled */
int t_rd_request; /* Number of bytes requested by M_READ */
/* during vmin/vtime read */
int t_iocid; /* ID of ioctl reply being awaited */
bufcall_id_t t_wbufcid; /* ID of pending write-side bufcall */
timeout_id_t t_vtid; /* vtime timer id */
/*
* The following are for EUC and also other types of codeset
* processing. Please read 'euc' as 'multi-byte codeset' instead.
*/
uchar_t t_codeset; /* current code set indicator (read side) */
uchar_t t_eucleft; /* bytes left to get in current char (read) */
uchar_t t_eucign; /* bytes left to ignore (output post proc) */
uchar_t t_eucpad; /* padding ... for eucwioc */
eucioc_t eucwioc; /* eucioc structure (have to use bcopy) */
uchar_t *t_eucp; /* ptr to parallel array of column widths */
mblk_t *t_eucp_mp; /* the m_blk that holds parallel array */
uchar_t t_maxeuc; /* the max length in memory bytes of an EUC */
int t_eucwarn; /* bad EUC counter */
/*
* The t_csdata, t_csmethods, t_scratch, and, t_scratch_len data
* fields are to support various non-EUC codesets.
*/
ldterm_cs_data_t t_csdata;
struct _ldterm_cs_methods t_csmethods;
uchar_t t_scratch[LDTERM_CS_MAX_BYTE_LENGTH];
uchar_t t_scratch_len;
mblk_t *t_closeopts; /* preallocated stroptions for close */
mblk_t *t_drainmsg; /* preallocated TCSBRK drain message */
} ldtermstd_state_t;
/*
* Internal state bits.
*/
#define TS_XCLUDE 0x00000001 /* exclusive-use flag against open */
#define TS_TTSTOP 0x00000002 /* output stopped by ^S */
#define TS_TBLOCK 0x00000004 /* input stopped by IXOFF mode */
#define TS_QUOT 0x00000008 /* last character input was \ */
#define TS_ERASE 0x00000010 /* within a \.../ for PRTRUB */
#define TS_SLNCH 0x00000020 /* next character service routine */
/* sees is literal */
#define TS_PLNCH 0x00000040 /* next character put routine sees */
/* is literal */
#define TS_TTCR 0x00000080 /* mapping NL to CR-NL */
#define TS_NOCANON 0x00000100 /* canonicalization done by somebody */
/* below us */
#define TS_RESCAN 0x00000400 /* canonicalization mode changed, */
/* rescan input queue */
#define TS_MREAD 0x00000800 /* timer started for vmin/vtime */
#define TS_FLUSHWAIT 0x00001000 /* waiting for flush on write side */
#define TS_MEUC 0x00010000 /* TRUE if multi-byte codesets used */
#define TS_WARNED 0x00020000 /* already warned on console */
#define TS_CLOSE 0x00040000 /* close in progress */
#define TS_IOCWAIT 0x00080000 /* waiting for reply to ioctl message */
#define TS_IFBLOCK 0x00100000 /* input flow blocked */
#define TS_OFBLOCK 0x00200000 /* output flow blocked */
#define TS_ISPTSTTY 0x00400000 /* is x/open terminal */
#ifdef __cplusplus
}
#endif
#endif /* _SYS_LDTERM_H */
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