xserver-multidpi/hw/xfree86/os-support/shared/posix_tty.c
Mikhail Gusarov 3f3ff971ec Replace X-allocation functions with their C89 counterparts
The only remaining X-functions used in server are XNF*, the rest is converted to
plain alloc/calloc/realloc/free/strdup.

X* functions are still exported from server and x* macros are still defined in
header file, so both ABI and API are not affected by this change.

Signed-off-by: Mikhail Gusarov <dottedmag@dottedmag.net>
Reviewed-by: Peter Hutterer <peter.hutterer@who-t.net>
2010-05-13 00:22:37 +07:00

656 lines
12 KiB
C

/*
* Copyright 1993-2003 by The XFree86 Project, Inc.
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE XFREE86 PROJECT BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
* OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
* Except as contained in this notice, the name of the XFree86 Project shall
* not be used in advertising or otherwise to promote the sale, use or other
* dealings in this Software without prior written authorization from the
* XFree86 Project.
*/
/*
*
* Copyright (c) 1997 Metro Link Incorporated
*
* Permission is hereby granted, free of charge, to any person obtaining a
* copy of this software and associated documentation files (the "Software"),
* to deal in the Software without restriction, including without limitation
* the rights to use, copy, modify, merge, publish, distribute, sublicense,
* and/or sell copies of the Software, and to permit persons to whom the
* Software is furnished to do so, subject to the following conditions:
*
* The above copyright notice and this permission notice shall be included in
* all copies or substantial portions of the Software.
*
* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
* IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
* THE X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY,
* WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF
* OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
* SOFTWARE.
*
* Except as contained in this notice, the name of the Metro Link shall not be
* used in advertising or otherwise to promote the sale, use or other dealings
* in this Software without prior written authorization from Metro Link.
*
*/
#ifdef HAVE_XORG_CONFIG_H
#include <xorg-config.h>
#endif
#include <X11/X.h>
#include "xf86.h"
#include "xf86Priv.h"
#include "xf86_OSlib.h"
static int
GetBaud (int baudrate)
{
#ifdef B300
if (baudrate == 300)
return B300;
#endif
#ifdef B1200
if (baudrate == 1200)
return B1200;
#endif
#ifdef B2400
if (baudrate == 2400)
return B2400;
#endif
#ifdef B4800
if (baudrate == 4800)
return B4800;
#endif
#ifdef B9600
if (baudrate == 9600)
return B9600;
#endif
#ifdef B19200
if (baudrate == 19200)
return B19200;
#endif
#ifdef B38400
if (baudrate == 38400)
return B38400;
#endif
#ifdef B57600
if (baudrate == 57600)
return B57600;
#endif
#ifdef B115200
if (baudrate == 115200)
return B115200;
#endif
#ifdef B230400
if (baudrate == 230400)
return B230400;
#endif
#ifdef B460800
if (baudrate == 460800)
return B460800;
#endif
return (0);
}
int
xf86OpenSerial (pointer options)
{
struct termios t;
int fd, i;
char *dev;
dev = xf86SetStrOption (options, "Device", NULL);
if (!dev)
{
xf86Msg (X_ERROR, "xf86OpenSerial: No Device specified.\n");
return (-1);
}
SYSCALL (fd = open (dev, O_RDWR | O_NONBLOCK));
if (fd == -1)
{
xf86Msg (X_ERROR,
"xf86OpenSerial: Cannot open device %s\n\t%s.\n",
dev, strerror (errno));
free(dev);
return (-1);
}
if (!isatty (fd))
{
/* Allow non-tty devices to be opened. */
free(dev);
return (fd);
}
/* set up default port parameters */
SYSCALL (tcgetattr (fd, &t));
t.c_iflag &= ~(IGNBRK|BRKINT|PARMRK|ISTRIP|INLCR\
|IGNCR|ICRNL|IXON);
t.c_oflag &= ~OPOST;
t.c_lflag &= ~(ECHO|ECHONL|ICANON|ISIG|IEXTEN);
t.c_cflag &= ~(CSIZE|PARENB);
t.c_cflag |= CS8|CLOCAL;
cfsetispeed (&t, B9600);
cfsetospeed (&t, B9600);
t.c_cc[VMIN] = 1;
t.c_cc[VTIME] = 0;
SYSCALL (tcsetattr (fd, TCSANOW, &t));
if (xf86SetSerial (fd, options) == -1)
{
SYSCALL (close (fd));
free(dev);
return (-1);
}
SYSCALL (i = fcntl (fd, F_GETFL, 0));
if (i == -1)
{
SYSCALL (close (fd));
free(dev);
return (-1);
}
i &= ~O_NONBLOCK;
SYSCALL (i = fcntl (fd, F_SETFL, i));
if (i == -1)
{
SYSCALL (close (fd));
free(dev);
return (-1);
}
free(dev);
return (fd);
}
int
xf86SetSerial (int fd, pointer options)
{
struct termios t;
int val;
const char *s;
int baud, r;
if (fd < 0)
return -1;
/* Don't try to set parameters for non-tty devices. */
if (!isatty(fd))
return 0;
SYSCALL (tcgetattr (fd, &t));
if ((val = xf86SetIntOption (options, "BaudRate", 0)))
{
if ((baud = GetBaud (val)))
{
cfsetispeed (&t, baud);
cfsetospeed (&t, baud);
}
else
{
xf86Msg (X_ERROR,
"Invalid Option BaudRate value: %d\n", val);
return (-1);
}
}
if ((val = xf86SetIntOption (options, "StopBits", 0)))
{
switch (val)
{
case 1:
t.c_cflag &= ~(CSTOPB);
break;
case 2:
t.c_cflag |= CSTOPB;
break;
default:
xf86Msg (X_ERROR,
"Invalid Option StopBits value: %d\n", val);
return (-1);
break;
}
}
if ((val = xf86SetIntOption (options, "DataBits", 0)))
{
switch (val)
{
case 5:
t.c_cflag &= ~(CSIZE);
t.c_cflag |= CS5;
break;
case 6:
t.c_cflag &= ~(CSIZE);
t.c_cflag |= CS6;
break;
case 7:
t.c_cflag &= ~(CSIZE);
t.c_cflag |= CS7;
break;
case 8:
t.c_cflag &= ~(CSIZE);
t.c_cflag |= CS8;
break;
default:
xf86Msg (X_ERROR,
"Invalid Option DataBits value: %d\n", val);
return (-1);
break;
}
}
if ((s = xf86SetStrOption (options, "Parity", NULL)))
{
if (xf86NameCmp (s, "Odd") == 0)
{
t.c_cflag |= PARENB | PARODD;
}
else if (xf86NameCmp (s, "Even") == 0)
{
t.c_cflag |= PARENB;
t.c_cflag &= ~(PARODD);
}
else if (xf86NameCmp (s, "None") == 0)
{
t.c_cflag &= ~(PARENB);
}
else
{
xf86Msg (X_ERROR, "Invalid Option Parity value: %s\n",
s);
return (-1);
}
}
if ((val = xf86SetIntOption (options, "Vmin", -1)) != -1)
{
t.c_cc[VMIN] = val;
}
if ((val = xf86SetIntOption (options, "Vtime", -1)) != -1)
{
t.c_cc[VTIME] = val;
}
if ((s = xf86SetStrOption (options, "FlowControl", NULL)))
{
xf86MarkOptionUsedByName (options, "FlowControl");
if (xf86NameCmp (s, "Xoff") == 0)
{
t.c_iflag |= IXOFF;
}
else if (xf86NameCmp (s, "Xon") == 0)
{
t.c_iflag |= IXON;
}
else if (xf86NameCmp (s, "XonXoff") == 0)
{
t.c_iflag |= IXON|IXOFF;
}
else if (xf86NameCmp (s, "None") == 0)
{
t.c_iflag &= ~(IXON | IXOFF);
}
else
{
xf86Msg (X_ERROR,
"Invalid Option FlowControl value: %s\n", s);
return (-1);
}
}
if ((xf86SetBoolOption (options, "ClearDTR", FALSE)))
{
#ifdef CLEARDTR_SUPPORT
# if defined(TIOCMBIC)
val = TIOCM_DTR;
SYSCALL (ioctl(fd, TIOCMBIC, &val));
# else
SYSCALL (ioctl(fd, TIOCCDTR, NULL));
# endif
#else
xf86Msg (X_WARNING,
"Option ClearDTR not supported on this OS\n");
return (-1);
#endif
xf86MarkOptionUsedByName (options, "ClearDTR");
}
if ((xf86SetBoolOption (options, "ClearRTS", FALSE)))
{
xf86Msg (X_WARNING,
"Option ClearRTS not supported on this OS\n");
return (-1);
xf86MarkOptionUsedByName (options, "ClearRTS");
}
SYSCALL (r = tcsetattr (fd, TCSANOW, &t));
return (r);
}
int
xf86SetSerialSpeed (int fd, int speed)
{
struct termios t;
int baud, r;
if (fd < 0)
return -1;
/* Don't try to set parameters for non-tty devices. */
if (!isatty(fd))
return 0;
SYSCALL (tcgetattr (fd, &t));
if ((baud = GetBaud (speed)))
{
cfsetispeed (&t, baud);
cfsetospeed (&t, baud);
}
else
{
xf86Msg (X_ERROR,
"Invalid Option BaudRate value: %d\n", speed);
return (-1);
}
SYSCALL (r = tcsetattr (fd, TCSANOW, &t));
return (r);
}
int
xf86ReadSerial (int fd, void *buf, int count)
{
int r;
int i;
SYSCALL (r = read (fd, buf, count));
DebugF("ReadingSerial: 0x%x",
(unsigned char)*(((unsigned char *)buf)));
for (i = 1; i < r; i++)
DebugF(", 0x%x",(unsigned char)*(((unsigned char *)buf) + i));
DebugF("\n");
return (r);
}
int
xf86WriteSerial (int fd, const void *buf, int count)
{
int r;
int i;
DebugF("WritingSerial: 0x%x",(unsigned char)*(((unsigned char *)buf)));
for (i = 1; i < count; i++)
ErrorF(", 0x%x",(unsigned char)*(((unsigned char *)buf) + i));
DebugF("\n");
SYSCALL (r = write (fd, buf, count));
return (r);
}
int
xf86CloseSerial (int fd)
{
int r;
SYSCALL (r = close (fd));
return (r);
}
int
xf86WaitForInput (int fd, int timeout)
{
fd_set readfds;
struct timeval to;
int r;
FD_ZERO(&readfds);
if (fd >= 0) {
FD_SET(fd, &readfds);
}
to.tv_sec = timeout / 1000000;
to.tv_usec = timeout % 1000000;
if (fd >= 0) {
SYSCALL (r = select (FD_SETSIZE, &readfds, NULL, NULL, &to));
}
else {
SYSCALL (r = select (FD_SETSIZE, NULL, NULL, NULL, &to));
}
xf86ErrorFVerb (9,"select returned %d\n", r);
return (r);
}
int
xf86SerialSendBreak (int fd, int duration)
{
int r;
SYSCALL (r = tcsendbreak (fd, duration));
return (r);
}
int
xf86FlushInput(int fd)
{
fd_set fds;
struct timeval timeout;
char c[4];
DebugF("FlushingSerial\n");
if (tcflush(fd, TCIFLUSH) == 0)
return 0;
timeout.tv_sec = 0;
timeout.tv_usec = 0;
FD_ZERO(&fds);
FD_SET(fd, &fds);
while (select(FD_SETSIZE, &fds, NULL, NULL, &timeout) > 0) {
if (read(fd, &c, sizeof(c)) < 1)
return 0;
FD_ZERO(&fds);
FD_SET(fd, &fds);
}
return 0;
}
static struct states {
int xf;
int os;
} modemStates[] = {
#ifdef TIOCM_LE
{ XF86_M_LE, TIOCM_LE },
#endif
#ifdef TIOCM_DTR
{ XF86_M_DTR, TIOCM_DTR },
#endif
#ifdef TIOCM_RTS
{ XF86_M_RTS, TIOCM_RTS },
#endif
#ifdef TIOCM_ST
{ XF86_M_ST, TIOCM_ST },
#endif
#ifdef TIOCM_SR
{ XF86_M_SR, TIOCM_SR },
#endif
#ifdef TIOCM_CTS
{ XF86_M_CTS, TIOCM_CTS },
#endif
#ifdef TIOCM_CAR
{ XF86_M_CAR, TIOCM_CAR },
#elif defined(TIOCM_CD)
{ XF86_M_CAR, TIOCM_CD },
#endif
#ifdef TIOCM_RNG
{ XF86_M_RNG, TIOCM_RNG },
#elif defined(TIOCM_RI)
{ XF86_M_CAR, TIOCM_RI },
#endif
#ifdef TIOCM_DSR
{ XF86_M_DSR, TIOCM_DSR },
#endif
};
static int numStates = sizeof(modemStates) / sizeof(modemStates[0]);
static int
xf2osState(int state)
{
int i;
int ret = 0;
for (i = 0; i < numStates; i++)
if (state & modemStates[i].xf)
ret |= modemStates[i].os;
return ret;
}
static int
os2xfState(int state)
{
int i;
int ret = 0;
for (i = 0; i < numStates; i++)
if (state & modemStates[i].os)
ret |= modemStates[i].xf;
return ret;
}
static int
getOsStateMask(void)
{
int i;
int ret = 0;
for (i = 0; i < numStates; i++)
ret |= modemStates[i].os;
return ret;
}
static int osStateMask = 0;
int
xf86SetSerialModemState(int fd, int state)
{
int ret;
int s;
if (fd < 0)
return -1;
/* Don't try to set parameters for non-tty devices. */
if (!isatty(fd))
return 0;
#ifndef TIOCMGET
return -1;
#else
if (!osStateMask)
osStateMask = getOsStateMask();
state = xf2osState(state);
SYSCALL((ret = ioctl(fd, TIOCMGET, &s)));
if (ret < 0)
return -1;
s &= ~osStateMask;
s |= state;
SYSCALL((ret = ioctl(fd, TIOCMSET, &s)));
if (ret < 0)
return -1;
else
return 0;
#endif
}
int
xf86GetSerialModemState(int fd)
{
int ret;
int s;
if (fd < 0)
return -1;
/* Don't try to set parameters for non-tty devices. */
if (!isatty(fd))
return 0;
#ifndef TIOCMGET
return -1;
#else
SYSCALL((ret = ioctl(fd, TIOCMGET, &s)));
if (ret < 0)
return -1;
return os2xfState(s);
#endif
}
int
xf86SerialModemSetBits(int fd, int bits)
{
int ret;
int s;
if (fd < 0)
return -1;
/* Don't try to set parameters for non-tty devices. */
if (!isatty(fd))
return 0;
#ifndef TIOCMGET
return -1;
#else
s = xf2osState(bits);
SYSCALL((ret = ioctl(fd, TIOCMBIS, &s)));
return ret;
#endif
}
int
xf86SerialModemClearBits(int fd, int bits)
{
int ret;
int s;
if (fd < 0)
return -1;
/* Don't try to set parameters for non-tty devices. */
if (!isatty(fd))
return 0;
#ifndef TIOCMGET
return -1;
#else
s = xf2osState(bits);
SYSCALL((ret = ioctl(fd, TIOCMBIC, &s)));
return ret;
#endif
}