fhandler_serial.cc: MARK and SPACE parity for serial port

[Marek Smetana <mara.smetana@gmail.com>]

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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



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 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