fhandler_serial.cc: MARK and SPACE parity for serial port
Marek Smetana
mara.smetana@gmail.com
Fri Jan 29 22:06:30 GMT 2021
Hi,
I have modified the patch as recommended and am sending it as an attachment.
The CMSPAR value is the same as in "asm / termbits.h" on Linux.
Patches sent by me are licensed under the 2-clause BSD license.
Best regards
Marek
-------------- next part --------------
winsup/cygwin/fhandler_serial.cc | 11 ++++++++++-
winsup/cygwin/include/sys/termios.h | 1 +
2 files changed, 11 insertions(+), 1 deletion(-)
diff --git c/winsup/cygwin/fhandler_serial.cc w/winsup/cygwin/fhandler_serial.cc
index fd5b45899..e0257302c 100644
--- c/winsup/cygwin/fhandler_serial.cc
+++ w/winsup/cygwin/fhandler_serial.cc
@@ -727,7 +727,12 @@ fhandler_serial::tcsetattr (int action, const struct termios *t)
/* -------------- Set parity ------------------ */
if (t->c_cflag & PARENB)
- state.Parity = (t->c_cflag & PARODD) ? ODDPARITY : EVENPARITY;
+ {
+ if(t->c_cflag & CMSPAR)
+ state.Parity = (t->c_cflag & PARODD) ? MARKPARITY : SPACEPARITY;
+ else
+ state.Parity = (t->c_cflag & PARODD) ? ODDPARITY : EVENPARITY;
+ }
else
state.Parity = NOPARITY;
@@ -1068,6 +1073,10 @@ fhandler_serial::tcgetattr (struct termios *t)
t->c_cflag |= (PARENB | PARODD);
if (state.Parity == EVENPARITY)
t->c_cflag |= PARENB;
+ if (state.Parity == MARKPARITY)
+ t->c_cflag |= (PARENB | PARODD | CMSPAR);
+ if (state.Parity == SPACEPARITY)
+ t->c_cflag |= (PARENB | CMSPAR);
/* -------------- Parity errors ------------------ */
diff --git c/winsup/cygwin/include/sys/termios.h w/winsup/cygwin/include/sys/termios.h
index 17e8d83a3..e4465fca3 100644
--- c/winsup/cygwin/include/sys/termios.h
+++ w/winsup/cygwin/include/sys/termios.h
@@ -206,6 +206,7 @@ POSIX commands */
#define CRTSXOFF 0x04000
#define CRTSCTS 0x08000
+#define CMSPAR 0x40000000 /* Mark or space (stick) parity. */
/* lflag bits */
#define ISIG 0x0001
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