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Diffstat (limited to 'arch/mips/include/asm/termios.h')
| -rw-r--r-- | arch/mips/include/asm/termios.h | 176 |
1 files changed, 176 insertions, 0 deletions
diff --git a/arch/mips/include/asm/termios.h b/arch/mips/include/asm/termios.h new file mode 100644 index 00000000..8f77f774 --- /dev/null +++ b/arch/mips/include/asm/termios.h @@ -0,0 +1,176 @@ +/* + * 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 <linux/errno.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. + */ +static inline int user_termio_to_kernel_termios(struct ktermios *termios, + struct termio __user *termio) +{ + unsigned short iflag, oflag, cflag, lflag; + unsigned int err; + + if (!access_ok(VERIFY_READ, termio, sizeof(struct termio))) + return -EFAULT; + + err = __get_user(iflag, &termio->c_iflag); + termios->c_iflag = (termios->c_iflag & 0xffff0000) | iflag; + err |=__get_user(oflag, &termio->c_oflag); + termios->c_oflag = (termios->c_oflag & 0xffff0000) | oflag; + err |=__get_user(cflag, &termio->c_cflag); + termios->c_cflag = (termios->c_cflag & 0xffff0000) | cflag; + err |=__get_user(lflag, &termio->c_lflag); + termios->c_lflag = (termios->c_lflag & 0xffff0000) | lflag; + err |=__get_user(termios->c_line, &termio->c_line); + if (err) + return -EFAULT; + + if (__copy_from_user(termios->c_cc, termio->c_cc, NCC)) + return -EFAULT; + + return 0; +} + +/* + * Translate a "termios" structure into a "termio". Ugh. + */ +static inline int kernel_termios_to_user_termio(struct termio __user *termio, + struct ktermios *termios) +{ + int err; + + if (!access_ok(VERIFY_WRITE, termio, sizeof(struct termio))) + return -EFAULT; + + err = __put_user(termios->c_iflag, &termio->c_iflag); + err |= __put_user(termios->c_oflag, &termio->c_oflag); + err |= __put_user(termios->c_cflag, &termio->c_cflag); + err |= __put_user(termios->c_lflag, &termio->c_lflag); + err |= __put_user(termios->c_line, &termio->c_line); + if (err) + return -EFAULT; + + if (__copy_to_user(termio->c_cc, termios->c_cc, NCC)) + return -EFAULT; + + return 0; +} + +static inline int user_termios_to_kernel_termios(struct ktermios __user *k, + struct termios2 *u) +{ + return copy_from_user(k, u, sizeof(struct termios2)) ? -EFAULT : 0; +} + +static inline int kernel_termios_to_user_termios(struct termios2 __user *u, + struct ktermios *k) +{ + return copy_to_user(u, k, sizeof(struct termios2)) ? -EFAULT : 0; +} + +static inline int user_termios_to_kernel_termios_1(struct ktermios *k, + struct termios __user *u) +{ + return copy_from_user(k, u, sizeof(struct termios)) ? -EFAULT : 0; +} + +static inline int kernel_termios_to_user_termios_1(struct termios __user *u, + struct ktermios *k) +{ + return copy_to_user(u, k, sizeof(struct termios)) ? -EFAULT : 0; +} + +#endif /* defined(__KERNEL__) */ + +#endif /* _ASM_TERMIOS_H */ |