/*
 * arch/ubicom32/include/asm/termios.h
 *   Ubicom32 termio definitions.
 *
 * (C) Copyright 2009, Ubicom, Inc.
 *
 * This file is part of the Ubicom32 Linux Kernel Port.
 *
 * The Ubicom32 Linux Kernel Port is free software: you can redistribute
 * it and/or modify it under the terms of the GNU General Public License
 * as published by the Free Software Foundation, either version 2 of the
 * License, or (at your option) any later version.
 *
 * The Ubicom32 Linux Kernel Port is distributed in the hope that it
 * will be useful, but WITHOUT ANY WARRANTY; without even the implied
 * warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See
 * the GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with the Ubicom32 Linux Kernel Port.  If not,
 * see <http://www.gnu.org/licenses/>.
 *
 * Ubicom32 implementation derived from (with many thanks):
 *   arch/m68knommu
 *   arch/blackfin
 *   arch/parisc
 */
#ifndef _ASM_UBICOM32_TERMIOS_H
#define _ASM_UBICOM32_TERMIOS_H

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

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 */
	unsigned char c_line;		/* line discipline */
	unsigned char c_cc[NCC];	/* control characters */
};

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

/* modem lines */
#define TIOCM_LE	0x001
#define TIOCM_DTR	0x002
#define TIOCM_RTS	0x004
#define TIOCM_ST	0x008
#define TIOCM_SR	0x010
#define TIOCM_CTS	0x020
#define TIOCM_CAR	0x040
#define TIOCM_RNG	0x080
#define TIOCM_DSR	0x100
#define TIOCM_CD	TIOCM_CAR
#define TIOCM_RI	TIOCM_RNG
#define TIOCM_OUT1	0x2000
#define TIOCM_OUT2	0x4000
#define TIOCM_LOOP	0x8000

/* ioctl (fd, TIOCSERGETLSR, &result) where result may be as below */

#ifdef __KERNEL__

/*
 * 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	/* __KERNEL__ */

#endif /* _ASM_UBICOM32_TERMIOS_H */