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/* Copyright (C) 1996 Robert de Bath <robert@mayday.compulink.co.uk> This
 * file is part of the Linux-8086 C library and is distributed under the
 * GNU Library General Public License.
 */
 
/* Note: This is based loosely on the Glib termios routines. */
 
#ifndef __MSDOS__
 
#include <errno.h>
#include <stddef.h>
#include <sys/ioctl.h>
#include <termios.h>
 
#ifdef L_isatty
isatty(fd)
int fd;
{
   struct termios term;
   int rv, err = errno;
   rv= (ioctl(fd, TCGETS, &term)==0);
   if( rv==0 && errno == ENOSYS )
      rv = (fd<3);
   errno = err;
   return rv;
}
#endif 
 
#ifdef L_tcgetattr
int
tcgetattr(fd, term)
int   fd;
struct termios *term;
{
   return ioctl(fd, TCGETS, term);
}
#endif
 
#ifdef L_tcsetattr
int
tcsetattr(fildes, optional_actions, termios_p)
int fildes;
int optional_actions;
struct termios *termios_p;
{
   switch (optional_actions)
   {
   case TCSANOW:
      return ioctl(fildes, TCSETS, termios_p);
   case TCSADRAIN:
      return ioctl(fildes, TCSETSW, termios_p);
   case TCSAFLUSH:
      return ioctl(fildes, TCSETSF, termios_p);
   default:
      errno = EINVAL;
      return -1;
   }
}
#endif
 
#ifdef L_tcdrain
/* Wait for pending output to be written on FD.  */
int
tcdrain(fd)
int   fd;
{
   /* With an argument of 1, TCSBRK just waits for output to drain.  */
   return ioctl(fd, TCSBRK, 1);
}
#endif
 
#ifdef L_tcflow
int
tcflow(fd, action)
int fd;
int action;
{
   return ioctl(fd, TCXONC, action);
}
#endif
 
#ifdef L_tcflush
/* Flush pending data on FD.  */
int
tcflush(fd, queue_selector)
int   fd;
int   queue_selector;
{
   return ioctl(fd, TCFLSH, queue_selector);
}
#endif
 
#ifdef L_tcsendbreak
/* Send zero bits on FD.  */
int
tcsendbreak(fd, duration)
int   fd;
int   duration;
{
   /*
    * The break lasts 0.25 to 0.5 seconds if DURATION is zero, and an
    * implementation-defined period if DURATION is nonzero. We define a
    * positive DURATION to be number of milliseconds to break.
    */
   if (duration <= 0)
      return ioctl(fd, TCSBRK, 0);
 
   /*
    * ioctl can't send a break of any other duration for us. This could be
    * changed to use trickery (e.g. lower speed and send a '\0') to send
    * the break, but for now just return an error.
    */
   errno = EINVAL;
   return -1;
}
#endif
 
#ifdef L_tcsetpgrp
/* Set the foreground process group ID of FD set PGRP_ID.  */
int
tcsetpgrp(fd, pgrp_id)
int   fd;
pid_t pgrp_id;
{
   return ioctl(fd, TIOCSPGRP, &pgrp_id);
}
#endif
 
#ifdef L_tcgetpgrp
/* Return the foreground process group ID of FD.  */
pid_t
tcgetpgrp(fd)
int   fd;
{
   int   pgrp;
   if (ioctl(fd, TIOCGPGRP, &pgrp) < 0)
      return (pid_t) - 1;
   return (pid_t) pgrp;
}
#endif
 
#ifdef L_cfgetospeed
speed_t cfgetospeed(tp)
struct termios *tp;
{
    return (tp->c_cflag & CBAUD);
}
#endif
 
#ifdef L_cfgetispeed
speed_t cfgetispeed(tp)
struct termios *tp;
{
    return (tp->c_cflag & CBAUD);
}
#endif
 
#ifdef L_cfsetospeed
int cfsetospeed(tp, speed)
struct termios *tp; speed_t speed;
{
#ifdef CBAUDEX
    if ((speed & ~CBAUD) ||
        ((speed & CBAUDEX) && (speed < B57600 || speed > B115200)))
        return 0;
#else
    if (speed & ~CBAUD)
        return 0;
#endif
    tp->c_cflag &= ~CBAUD;
    tp->c_cflag |= speed;
 
    return 0;
}
#endif
 
#ifdef L_cfsetispeed
int cfsetispeed(tp, speed)
struct termios *tp; speed_t speed;
{
    return cfsetospeed(tp, speed);
}
#endif
 
#if 0
 
/* Not POSIX standard, not worth the bother to keep it up */
 
#ifdef L_tcspeed
static struct {
        int number;
        speed_t code;
} tcspeeds[] = {
#ifdef B50
        {50, B50},
#endif
#ifdef B75
        {75, B75},
#endif
#ifdef B110
        {110, B110},
#endif
#ifdef B134
        {134, B134},
#endif
#ifdef B150
        {150, B150},
#endif
#ifdef B200
        {200, B200},
#endif
#ifdef B300
        {300, B300},
#endif
#ifdef B600
        {600, B600},
#endif
#ifdef B1200
        {1200, B1200},
#endif
#ifdef B1800
        {1800, B1800},
#endif
#ifdef B2400
        {2400, B2400},
#endif
#ifdef B4800
        {4800, B4800},
#endif
#ifdef B9600
        {9600, B9600},
#endif
#ifdef B19200
        {19200, B19200},
#endif
#ifdef B38400
        {38400, B38400},
#endif
#ifdef B57600
        {57600, B57600},
#endif
#ifdef B115200
        {115200, B115200},
#endif
#ifdef B230400
        {230400, B230400},
#endif
#ifdef B460800
        {460800, B460800},
#endif
#ifdef B0
        {0, B0},
#endif
        {0, 0}
};
 
int tcspeed_to_number(code)
speed_t code;
{
    int i;
    code &= CBAUD;
    for(i=0;tcspeeds[i].code;i++)
        if (tcspeeds[i].code == code)
          return tcspeeds[i].number;
    return 0;
}
 
speed_t tcspeed_from_number(number)
int number;
{
    int i;
    for(i=0;tcspeeds[i].code;i++)
        if (tcspeeds[i].number == number)
          return tcspeeds[i].code;
    return B0;
}
#endif
 
#ifdef L_cfgetospeedn
int cfgetospeedn(tp)
struct termios *tp;
{
    return tcspeed_to_number(cfgetospeed(tp));
}
#endif
 
#ifdef L_cfgetispeedn
int cfgetispeedn(tp)
struct termios *tp;
{
    return tcspeed_to_number(cfgetispeed(tp));
}
#endif
 
#ifdef L_cfsetospeedn
int cfsetospeedn(tp, speed)
struct termios *tp; int speed;
{
    return cfsetospeed(tp, tcspeed_from_number(speed));
}
#endif
 
#ifdef L_cfsetispeedn
int cfsetispeedn(tp, speed)
struct termios *tp; int speed;
{
    return cfsetispeedn(tp, tcspeed_from_number(speed));
}
#endif
 
#endif
 
/* From linux libc-4.6.27 again */
#ifdef L_cfmakeraw
/* Copyright (C) 1992 Free Software Foundation, Inc.
This file is part of the GNU C Library.*/
 
void
cfmakeraw(t)
struct termios *t;
{
/* I changed it to the current form according to the suggestions
 * from Bruce Evans. Thanks Bruce. Please report the problems to
 * H.J. Lu (hlu@eecs.wsu.edu).
 */
 
/*
 * I took out the bits commented out by #if 1...#else    - RHP
 */
 
    /*  VMIN = 0 means non-blocking for Linux */
    t->c_cc[VMIN] = 1; t->c_cc[VTIME] = 1;
    /* clear some bits with &= ~(bits), set others with |= */
    t->c_cflag &= ~(CSIZE|PARENB|CSTOPB);
    t->c_cflag |=  (CS8|HUPCL|CREAD);
    t->c_iflag &= ~(IGNBRK|BRKINT|PARMRK|INPCK|ISTRIP);
    t->c_iflag &= ~(INLCR|IGNCR|ICRNL|IXON|IXOFF);
    t->c_iflag |=  (BRKINT|IGNPAR);
    t->c_oflag &= ~(OPOST|OLCUC|OCRNL|ONOCR|ONLRET|OFILL|OFDEL);
    t->c_oflag &= ~(NLDLY|CRDLY|TABDLY|BSDLY|VTDLY|FFDLY);
    t->c_oflag |=  (ONLCR|NL0|CR0|TAB3|BS0|VT0|FF0);
    t->c_lflag &= ~(ISIG|ICANON|IEXTEN|ECHO|ECHOE|ECHOK|ECHONL);
    t->c_lflag &= ~(NOFLSH|XCASE);
    t->c_lflag &= ~(ECHOPRT|ECHOCTL|ECHOKE);
}
#endif
 
#endif

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[/] [or1k/] [trunk/] [uclinux/] [uC-libc/] [termios/] [termios.c] - Blame information for rev 1767

Line No.	Rev	Author	Line
1	199	simons	`/* Copyright (C) 1996 Robert de Bath <robert@mayday.compulink.co.uk> This`
2			`* file is part of the Linux-8086 C library and is distributed under the`
3			`* GNU Library General Public License.`
4			`*/`
5
6			`/* Note: This is based loosely on the Glib termios routines. */`
7
8			`#ifndef __MSDOS__`
9
10			`#include <errno.h>`
11			`#include <stddef.h>`
12			`#include <sys/ioctl.h>`
13			`#include <termios.h>`
14
15			`#ifdef L_isatty`
16			`isatty(fd)`
17			`int fd;`
18			`{`
19			`struct termios term;`
20			`int rv, err = errno;`
21			`rv= (ioctl(fd, TCGETS, &term)==0);`
22			`if( rv==0 && errno == ENOSYS )`
23			`rv = (fd<3);`
24			`errno = err;`
25			`return rv;`
26			`}`
27			`#endif`
28
29			`#ifdef L_tcgetattr`
30			`int`
31			`tcgetattr(fd, term)`
32			`int fd;`
33			`struct termios *term;`
34			`{`
35			`return ioctl(fd, TCGETS, term);`
36			`}`
37			`#endif`
38
39			`#ifdef L_tcsetattr`
40			`int`
41			`tcsetattr(fildes, optional_actions, termios_p)`
42			`int fildes;`
43			`int optional_actions;`
44			`struct termios *termios_p;`
45			`{`
46			`switch (optional_actions)`
47			`{`
48			`case TCSANOW:`
49			`return ioctl(fildes, TCSETS, termios_p);`
50			`case TCSADRAIN:`
51			`return ioctl(fildes, TCSETSW, termios_p);`
52			`case TCSAFLUSH:`
53			`return ioctl(fildes, TCSETSF, termios_p);`
54			`default:`
55			`errno = EINVAL;`
56			`return -1;`
57			`}`
58			`}`
59			`#endif`
60
61			`#ifdef L_tcdrain`
62			`/* Wait for pending output to be written on FD. */`
63			`int`
64			`tcdrain(fd)`
65			`int fd;`
66			`{`
67			`/* With an argument of 1, TCSBRK just waits for output to drain. */`
68			`return ioctl(fd, TCSBRK, 1);`
69			`}`
70			`#endif`
71
72			`#ifdef L_tcflow`
73			`int`
74			`tcflow(fd, action)`
75			`int fd;`
76			`int action;`
77			`{`
78			`return ioctl(fd, TCXONC, action);`
79			`}`
80			`#endif`
81
82			`#ifdef L_tcflush`
83			`/* Flush pending data on FD. */`
84			`int`
85			`tcflush(fd, queue_selector)`
86			`int fd;`
87			`int queue_selector;`
88			`{`
89			`return ioctl(fd, TCFLSH, queue_selector);`
90			`}`
91			`#endif`
92
93			`#ifdef L_tcsendbreak`
94			`/* Send zero bits on FD. */`
95			`int`
96			`tcsendbreak(fd, duration)`
97			`int fd;`
98			`int duration;`
99			`{`
100			`/*`
101			`* The break lasts 0.25 to 0.5 seconds if DURATION is zero, and an`
102			`* implementation-defined period if DURATION is nonzero. We define a`
103			`* positive DURATION to be number of milliseconds to break.`
104			`*/`
105			`if (duration <= 0)`
106			`return ioctl(fd, TCSBRK, 0);`
107
108			`/*`
109			`* ioctl can't send a break of any other duration for us. This could be`
110			`* changed to use trickery (e.g. lower speed and send a '\0') to send`
111			`* the break, but for now just return an error.`
112			`*/`
113			`errno = EINVAL;`
114			`return -1;`
115			`}`
116			`#endif`
117
118			`#ifdef L_tcsetpgrp`
119			`/* Set the foreground process group ID of FD set PGRP_ID. */`
120			`int`
121			`tcsetpgrp(fd, pgrp_id)`
122			`int fd;`
123			`pid_t pgrp_id;`
124			`{`
125			`return ioctl(fd, TIOCSPGRP, &pgrp_id);`
126			`}`
127			`#endif`
128
129			`#ifdef L_tcgetpgrp`
130			`/* Return the foreground process group ID of FD. */`
131			`pid_t`
132			`tcgetpgrp(fd)`
133			`int fd;`
134			`{`
135			`int pgrp;`
136			`if (ioctl(fd, TIOCGPGRP, &pgrp) < 0)`
137			`return (pid_t) - 1;`
138			`return (pid_t) pgrp;`
139			`}`
140			`#endif`
141
142			`#ifdef L_cfgetospeed`
143			`speed_t cfgetospeed(tp)`
144			`struct termios *tp;`
145			`{`
146			`return (tp->c_cflag & CBAUD);`
147			`}`
148			`#endif`
149
150			`#ifdef L_cfgetispeed`
151			`speed_t cfgetispeed(tp)`
152			`struct termios *tp;`
153			`{`
154			`return (tp->c_cflag & CBAUD);`
155			`}`
156			`#endif`
157
158			`#ifdef L_cfsetospeed`
159			`int cfsetospeed(tp, speed)`
160			`struct termios *tp; speed_t speed;`
161			`{`
162			`#ifdef CBAUDEX`
163			`if ((speed & ~CBAUD) \|\|`
164			`((speed & CBAUDEX) && (speed < B57600 \|\| speed > B115200)))`
165			`return 0;`
166			`#else`
167			`if (speed & ~CBAUD)`
168			`return 0;`
169			`#endif`
170			`tp->c_cflag &= ~CBAUD;`
171			`tp->c_cflag \|= speed;`
172
173			`return 0;`
174			`}`
175			`#endif`
176
177			`#ifdef L_cfsetispeed`
178			`int cfsetispeed(tp, speed)`
179			`struct termios *tp; speed_t speed;`
180			`{`
181			`return cfsetospeed(tp, speed);`
182			`}`
183			`#endif`
184
185			`#if 0`
186
187			`/* Not POSIX standard, not worth the bother to keep it up */`
188
189			`#ifdef L_tcspeed`
190			`static struct {`
191			`int number;`
192			`speed_t code;`
193			`} tcspeeds[] = {`
194			`#ifdef B50`
195			`{50, B50},`
196			`#endif`
197			`#ifdef B75`
198			`{75, B75},`
199			`#endif`
200			`#ifdef B110`
201			`{110, B110},`
202			`#endif`
203			`#ifdef B134`
204			`{134, B134},`
205			`#endif`
206			`#ifdef B150`
207			`{150, B150},`
208			`#endif`
209			`#ifdef B200`
210			`{200, B200},`
211			`#endif`
212			`#ifdef B300`
213			`{300, B300},`
214			`#endif`
215			`#ifdef B600`
216			`{600, B600},`
217			`#endif`
218			`#ifdef B1200`
219			`{1200, B1200},`
220			`#endif`
221			`#ifdef B1800`
222			`{1800, B1800},`
223			`#endif`
224			`#ifdef B2400`
225			`{2400, B2400},`
226			`#endif`
227			`#ifdef B4800`
228			`{4800, B4800},`
229			`#endif`
230			`#ifdef B9600`
231			`{9600, B9600},`
232			`#endif`
233			`#ifdef B19200`
234			`{19200, B19200},`
235			`#endif`
236			`#ifdef B38400`
237			`{38400, B38400},`
238			`#endif`
239			`#ifdef B57600`
240			`{57600, B57600},`
241			`#endif`
242			`#ifdef B115200`
243			`{115200, B115200},`
244			`#endif`
245			`#ifdef B230400`
246			`{230400, B230400},`
247			`#endif`
248			`#ifdef B460800`
249			`{460800, B460800},`
250			`#endif`
251			`#ifdef B0`
252			`{0, B0},`
253			`#endif`
254			`{0, 0}`
255			`};`
256
257			`int tcspeed_to_number(code)`
258			`speed_t code;`
259			`{`
260			`int i;`
261			`code &= CBAUD;`
262			`for(i=0;tcspeeds[i].code;i++)`
263			`if (tcspeeds[i].code == code)`
264			`return tcspeeds[i].number;`
265			`return 0;`
266			`}`
267
268			`speed_t tcspeed_from_number(number)`
269			`int number;`
270			`{`
271			`int i;`
272			`for(i=0;tcspeeds[i].code;i++)`
273			`if (tcspeeds[i].number == number)`
274			`return tcspeeds[i].code;`
275			`return B0;`
276			`}`
277			`#endif`
278
279			`#ifdef L_cfgetospeedn`
280			`int cfgetospeedn(tp)`
281			`struct termios *tp;`
282			`{`
283			`return tcspeed_to_number(cfgetospeed(tp));`
284			`}`
285			`#endif`
286
287			`#ifdef L_cfgetispeedn`
288			`int cfgetispeedn(tp)`
289			`struct termios *tp;`
290			`{`
291			`return tcspeed_to_number(cfgetispeed(tp));`
292			`}`
293			`#endif`
294
295			`#ifdef L_cfsetospeedn`
296			`int cfsetospeedn(tp, speed)`
297			`struct termios *tp; int speed;`
298			`{`
299			`return cfsetospeed(tp, tcspeed_from_number(speed));`
300			`}`
301			`#endif`
302
303			`#ifdef L_cfsetispeedn`
304			`int cfsetispeedn(tp, speed)`
305			`struct termios *tp; int speed;`
306			`{`
307			`return cfsetispeedn(tp, tcspeed_from_number(speed));`
308			`}`
309			`#endif`
310
311			`#endif`
312
313			`/* From linux libc-4.6.27 again */`
314			`#ifdef L_cfmakeraw`
315			`/* Copyright (C) 1992 Free Software Foundation, Inc.`
316			`This file is part of the GNU C Library.*/`
317
318			`void`
319			`cfmakeraw(t)`
320			`struct termios *t;`
321			`{`
322			`/* I changed it to the current form according to the suggestions`
323			`* from Bruce Evans. Thanks Bruce. Please report the problems to`
324			`* H.J. Lu (hlu@eecs.wsu.edu).`
325			`*/`
326
327			`/*`
328			`* I took out the bits commented out by #if 1...#else - RHP`
329			`*/`
330
331			`/* VMIN = 0 means non-blocking for Linux */`
332			`t->c_cc[VMIN] = 1; t->c_cc[VTIME] = 1;`
333			`/* clear some bits with &= ~(bits), set others with \|= */`
334			`t->c_cflag &= ~(CSIZE\|PARENB\|CSTOPB);`
335			`t->c_cflag \|= (CS8\|HUPCL\|CREAD);`
336			`t->c_iflag &= ~(IGNBRK\|BRKINT\|PARMRK\|INPCK\|ISTRIP);`
337			`t->c_iflag &= ~(INLCR\|IGNCR\|ICRNL\|IXON\|IXOFF);`
338			`t->c_iflag \|= (BRKINT\|IGNPAR);`
339			`t->c_oflag &= ~(OPOST\|OLCUC\|OCRNL\|ONOCR\|ONLRET\|OFILL\|OFDEL);`
340			`t->c_oflag &= ~(NLDLY\|CRDLY\|TABDLY\|BSDLY\|VTDLY\|FFDLY);`
341			`t->c_oflag \|= (ONLCR\|NL0\|CR0\|TAB3\|BS0\|VT0\|FF0);`
342			`t->c_lflag &= ~(ISIG\|ICANON\|IEXTEN\|ECHO\|ECHOE\|ECHOK\|ECHONL);`
343			`t->c_lflag &= ~(NOFLSH\|XCASE);`
344			`t->c_lflag &= ~(ECHOPRT\|ECHOCTL\|ECHOKE);`
345			`}`
346			`#endif`
347
348			`#endif`