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termios.h

/*
 * This file is subject to the terms and conditions of the GNU General Public
 * License.  See the file "COPYING" in the main directory of this archive
 * for more details.
 *
 * Copyright (C) 1995, 1996, 2000, 2001 by Ralf Baechle
 * Copyright (C) 2000, 2001 Silicon Graphics, Inc.
 */
#ifndef _ASM_TERMIOS_H
#define _ASM_TERMIOS_H

#include <asm/termbits.h>
#include <asm/ioctls.h>

struct sgttyb {
      char  sg_ispeed;
      char  sg_ospeed;
      char  sg_erase;
      char  sg_kill;
      int   sg_flags;   /* SGI special - int, not short */
};

struct tchars {
      char  t_intrc;
      char  t_quitc;
      char  t_startc;
      char  t_stopc;
      char  t_eofc;
      char  t_brkc;
};

struct ltchars {
        char    t_suspc;        /* stop process signal */
        char    t_dsuspc;       /* delayed stop process signal */
        char    t_rprntc;       /* reprint line */
        char    t_flushc;       /* flush output (toggles) */
        char    t_werasc;       /* word erase */
        char    t_lnextc;       /* literal next character */
};

/* TIOCGSIZE, TIOCSSIZE not defined yet.  Only needed for SunOS source
   compatibility anyway ... */

struct winsize {
      unsigned short ws_row;
      unsigned short ws_col;
      unsigned short ws_xpixel;
      unsigned short ws_ypixel;
};

#define NCC 8
struct termio {
      unsigned short c_iflag;       /* input mode flags */
      unsigned short c_oflag;       /* output mode flags */
      unsigned short c_cflag;       /* control mode flags */
      unsigned short c_lflag;       /* local mode flags */
      char c_line;                  /* line discipline */
      unsigned char c_cc[NCCS];     /* control characters */
};

#ifdef __KERNEL__
#include <linux/module.h>

/*
 *    intr=^C           quit=^\           erase=del   kill=^U
 *    vmin=\1           vtime=\0    eol2=\0           swtc=\0
 *    start=^Q    stop=^S           susp=^Z           vdsusp=
 *    reprint=^R  discard=^U  werase=^W   lnext=^V
 *    eof=^D            eol=\0
 */
#define INIT_C_CC "\003\034\177\025\1\0\0\0\021\023\032\0\022\017\027\026\004\0"
#endif

/* modem lines */
#define TIOCM_LE  0x001       /* line enable */
#define TIOCM_DTR 0x002       /* data terminal ready */
#define TIOCM_RTS 0x004       /* request to send */
#define TIOCM_ST  0x010       /* secondary transmit */
#define TIOCM_SR  0x020       /* secondary receive */
#define TIOCM_CTS 0x040       /* clear to send */
#define TIOCM_CAR 0x100       /* carrier detect */
#define TIOCM_CD  TIOCM_CAR
#define TIOCM_RNG 0x200       /* ring */
#define TIOCM_RI  TIOCM_RNG
#define TIOCM_DSR 0x400       /* data set ready */
#define TIOCM_OUT1      0x2000
#define TIOCM_OUT2      0x4000
#define TIOCM_LOOP      0x8000

#ifdef __KERNEL__

#include <linux/string.h>

/*
 * Translate a "termio" structure into a "termios". Ugh.
 */
#define user_termio_to_kernel_termios(termios, termio) \
({ \
      unsigned short tmp; \
      get_user(tmp, &(termio)->c_iflag); \
      (termios)->c_iflag = (0xffff0000 & ((termios)->c_iflag)) | tmp; \
      get_user(tmp, &(termio)->c_oflag); \
      (termios)->c_oflag = (0xffff0000 & ((termios)->c_oflag)) | tmp; \
      get_user(tmp, &(termio)->c_cflag); \
      (termios)->c_cflag = (0xffff0000 & ((termios)->c_cflag)) | tmp; \
      get_user(tmp, &(termio)->c_lflag); \
      (termios)->c_lflag = (0xffff0000 & ((termios)->c_lflag)) | tmp; \
      get_user((termios)->c_line, &(termio)->c_line); \
      copy_from_user((termios)->c_cc, (termio)->c_cc, NCC); \
})

/*
 * Translate a "termios" structure into a "termio". Ugh.
 */
#define kernel_termios_to_user_termio(termio, termios) \
({ \
      put_user((termios)->c_iflag, &(termio)->c_iflag); \
      put_user((termios)->c_oflag, &(termio)->c_oflag); \
      put_user((termios)->c_cflag, &(termio)->c_cflag); \
      put_user((termios)->c_lflag, &(termio)->c_lflag); \
      put_user((termios)->c_line, &(termio)->c_line); \
      copy_to_user((termio)->c_cc, (termios)->c_cc, NCC); \
})

#define user_termios_to_kernel_termios(k, u) copy_from_user(k, u, sizeof(struct termios2))
#define kernel_termios_to_user_termios(u, k) copy_to_user(u, k, sizeof(struct termios2))
#define user_termios_to_kernel_termios_1(k, u) copy_from_user(k, u, sizeof(struct termios))
#define kernel_termios_to_user_termios_1(u, k) copy_to_user(u, k, sizeof(struct termios))

#endif /* defined(__KERNEL__) */

#endif /* _ASM_TERMIOS_H */

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