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85 lines
2.9 KiB
C
85 lines
2.9 KiB
C
/*
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* termios2.h
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*
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* Use termios2 interface to set custom baud rates to serial ports.
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*
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* by Nick Patavalis (npat@efault.net)
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*
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* ATTENTION: Linux-specific kludge!
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*
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* This program is free software; you can redistribute it and/or
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* modify it under the terms of the GNU General Public License as
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* published by the Free Software Foundation; either version 2 of the
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* License, or (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful, but
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* WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
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* USA
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*/
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#ifndef TERMIOS2_H
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#define TERMIOS2_H
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#include <termios.h>
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/* Replace termios functions, with termios2 functions */
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#define tcsetattr tc2setattr
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#define tcgetattr tc2getattr
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#define cfsetispeed cf2setispeed
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#define cfgetispeed cf2getispeed
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/* And define these new ones */
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#define cfsetospeed_custom cf2setospeed_custom
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#define cfsetispeed_custom cf2setispeed_custom
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#define cfgetospeed_custom(tiop) ((tiop)->c_ospeed)
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#define cfgetispeed_custom(tiop) ((tiop)->c_ispeed)
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/* Replacements for the standard tcsetattr(3), tcgetattr(3)
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* functions. Same user interface, but these use the new termios2
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* kernel interface (new ioctl's) which allow custom baud-rate
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* setting. */
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int tc2setattr(int fd, int optional_actions, const struct termios *tios);
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int tc2getattr(int fd, struct termios *tios);
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/* Replacements for the standard cfgetispeed(3), cfsetispeed(3)
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* functions. Use these to set / get standard *input* baudrates. You
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* can still use cfgetospeed(3), cfsetospeed(3) to set / get the
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* standard output baudrates. The new termios2 interface, unlike the
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* old one, supports different input and output speeds for a
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* device. The "speed" argument must be (and the return value will be)
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* one of the standard "Bxxxx" macros. If cf2getispeed() or
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* cfgetospeed(3) return CBAUDEX, then the respective baudrate is a
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* custom one. Read the "termios.c_ispeed" / "termios.c_ospeed" fields
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* to get the custom value (as a numeric speed). */
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int cf2setispeed(struct termios *tios, speed_t speed);
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speed_t cf2getispeed(struct termios *tios);
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/* Use these to set *custom* input and output baudrates for a
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* device. The "speed" argument must be a numeric baudrate value
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* (e.g. 1234 for 1234 bps). */
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int cf2setispeed_custom(struct termios *tios, int speed);
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int cf2setospeed_custom(struct termios *tios, int speed);
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/***************************************************************************/
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#endif /* of TERMIOS2_H */
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/***************************************************************************/
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/*
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* Local Variables:
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* mode:c
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* tab-width: 4
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* c-basic-offset: 4
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* End:
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*/
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