4564f9e5fd
The line discipline numbers N_* are currently defined for each architecture individually, but (except for a seeming mistake) identically, in asm/termios.h. There is no obvious reason why these numbers should be architecture specific, nor any apparent relationship with the termios structure. The total number of these, NR_LDISCS, is defined in linux/tty.h anyway. So I propose the following patch which moves the definitions of the individual line disciplines to linux/tty.h too. Three of these numbers (N_MASC, N_PROFIBUS_FDL, and N_SMSBLOCK) are unused in the current kernel, but the patch still keeps the complete set in case there are plans to use them yet. Signed-off-by: Tilman Schmidt <tilman@imap.cc> Cc: <linux-arch@vger.kernel.org> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
131 lines
3.8 KiB
C
131 lines
3.8 KiB
C
/*
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* This file is subject to the terms and conditions of the GNU General Public
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* License. See the file "COPYING" in the main directory of this archive
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* for more details.
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*
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* Copyright (C) 1995, 1996, 2000, 2001 by Ralf Baechle
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* Copyright (C) 2000, 2001 Silicon Graphics, Inc.
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*/
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#ifndef _ASM_TERMIOS_H
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#define _ASM_TERMIOS_H
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#include <asm/termbits.h>
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#include <asm/ioctls.h>
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struct sgttyb {
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char sg_ispeed;
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char sg_ospeed;
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char sg_erase;
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char sg_kill;
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int sg_flags; /* SGI special - int, not short */
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};
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struct tchars {
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char t_intrc;
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char t_quitc;
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char t_startc;
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char t_stopc;
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char t_eofc;
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char t_brkc;
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};
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struct ltchars {
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char t_suspc; /* stop process signal */
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char t_dsuspc; /* delayed stop process signal */
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char t_rprntc; /* reprint line */
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char t_flushc; /* flush output (toggles) */
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char t_werasc; /* word erase */
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char t_lnextc; /* literal next character */
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};
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/* TIOCGSIZE, TIOCSSIZE not defined yet. Only needed for SunOS source
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compatibility anyway ... */
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struct winsize {
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unsigned short ws_row;
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unsigned short ws_col;
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unsigned short ws_xpixel;
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unsigned short ws_ypixel;
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};
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#define NCC 8
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struct termio {
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unsigned short c_iflag; /* input mode flags */
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unsigned short c_oflag; /* output mode flags */
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unsigned short c_cflag; /* control mode flags */
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unsigned short c_lflag; /* local mode flags */
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char c_line; /* line discipline */
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unsigned char c_cc[NCCS]; /* control characters */
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};
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#ifdef __KERNEL__
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#include <linux/module.h>
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/*
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* intr=^C quit=^\ erase=del kill=^U
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* vmin=\1 vtime=\0 eol2=\0 swtc=\0
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* start=^Q stop=^S susp=^Z vdsusp=
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* reprint=^R discard=^U werase=^W lnext=^V
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* eof=^D eol=\0
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*/
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#define INIT_C_CC "\003\034\177\025\1\0\0\0\021\023\032\0\022\017\027\026\004\0"
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#endif
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/* modem lines */
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#define TIOCM_LE 0x001 /* line enable */
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#define TIOCM_DTR 0x002 /* data terminal ready */
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#define TIOCM_RTS 0x004 /* request to send */
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#define TIOCM_ST 0x010 /* secondary transmit */
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#define TIOCM_SR 0x020 /* secondary receive */
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#define TIOCM_CTS 0x040 /* clear to send */
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#define TIOCM_CAR 0x100 /* carrier detect */
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#define TIOCM_CD TIOCM_CAR
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#define TIOCM_RNG 0x200 /* ring */
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#define TIOCM_RI TIOCM_RNG
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#define TIOCM_DSR 0x400 /* data set ready */
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#define TIOCM_OUT1 0x2000
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#define TIOCM_OUT2 0x4000
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#define TIOCM_LOOP 0x8000
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#ifdef __KERNEL__
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#include <linux/string.h>
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/*
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* Translate a "termio" structure into a "termios". Ugh.
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*/
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#define user_termio_to_kernel_termios(termios, termio) \
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({ \
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unsigned short tmp; \
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get_user(tmp, &(termio)->c_iflag); \
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(termios)->c_iflag = (0xffff0000 & ((termios)->c_iflag)) | tmp; \
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get_user(tmp, &(termio)->c_oflag); \
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(termios)->c_oflag = (0xffff0000 & ((termios)->c_oflag)) | tmp; \
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get_user(tmp, &(termio)->c_cflag); \
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(termios)->c_cflag = (0xffff0000 & ((termios)->c_cflag)) | tmp; \
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get_user(tmp, &(termio)->c_lflag); \
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(termios)->c_lflag = (0xffff0000 & ((termios)->c_lflag)) | tmp; \
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get_user((termios)->c_line, &(termio)->c_line); \
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copy_from_user((termios)->c_cc, (termio)->c_cc, NCC); \
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})
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/*
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* Translate a "termios" structure into a "termio". Ugh.
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*/
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#define kernel_termios_to_user_termio(termio, termios) \
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({ \
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put_user((termios)->c_iflag, &(termio)->c_iflag); \
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put_user((termios)->c_oflag, &(termio)->c_oflag); \
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put_user((termios)->c_cflag, &(termio)->c_cflag); \
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put_user((termios)->c_lflag, &(termio)->c_lflag); \
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put_user((termios)->c_line, &(termio)->c_line); \
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copy_to_user((termio)->c_cc, (termios)->c_cc, NCC); \
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})
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#define user_termios_to_kernel_termios(k, u) copy_from_user(k, u, sizeof(struct termios))
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#define kernel_termios_to_user_termios(u, k) copy_to_user(u, k, sizeof(struct termios))
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#endif /* defined(__KERNEL__) */
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#endif /* _ASM_TERMIOS_H */
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