patch-2.1.9 linux/include/asm-sparc/termios.h

• Lines: 135
• Date: Sat Nov 9 21:39:37 1996
• Orig file: v2.1.8/linux/include/asm-sparc/termios.h
• Orig date: Sun Apr 21 12:30:34 1996

diff -u --recursive --new-file v2.1.8/linux/include/asm-sparc/termios.h linux/include/asm-sparc/termios.h
@@ -1,10 +1,11 @@
-/* $Id: termios.h,v 1.13 1996/04/04 12:51:30 davem Exp $ */
+/* $Id: termios.h,v 1.20 1996/10/31 00:59:54 davem Exp $ */
 #ifndef _SPARC_TERMIOS_H
 #define _SPARC_TERMIOS_H
 
 #include <asm/ioctls.h>
 #include <asm/termbits.h>
 
+#if defined(__KERNEL__) || defined(__DEFINE_BSD_TERMIOS)
 struct sgttyb {
 	char	sg_ispeed;
 	char	sg_ospeed;
@@ -30,6 +31,7 @@
 	char	t_werasc;
 	char	t_lnextc;
 };
+#endif /* __KERNEL__ */
 
 struct sunos_ttysize {
 	int st_lines;   /* Lines on the terminal */
@@ -59,18 +61,34 @@
 #define N_PPP		3
 
 #ifdef __KERNEL__
+
+/*
+ * c_cc characters in the termio structure.  Oh, how I love being
+ * backwardly compatible.  Notice that character 4 and 5 are
+ * interpreted differently depending on whether ICANON is set in
+ * c_lflag.  If it's set, they are used as _VEOF and _VEOL, otherwise
+ * as _VMIN and V_TIME.  This is for compatibility with OSF/1 (which
+ * is compatible with sysV)...
+ */
+#define _VMIN	4
+#define _VTIME	5
+
+
+#include <linux/string.h>
+
 /*	intr=^C		quit=^\		erase=del	kill=^U
-	eof/vmin=\1	eol/vtime=\0	eol2=\0		sxtc=\0
+	eof=^D		eol=\0		eol2=\0		sxtc=\0
 	start=^Q	stop=^S		susp=^Z		dsusp=^Y
 	reprint=^R	discard=^U	werase=^W	lnext=^V
+	vmin=\1         vtime=\0
 */
-#define INIT_C_CC "\003\034\177\025\001\000\000\000\021\023\032\031\022\025\027\026"
+#define INIT_C_CC "\003\034\177\025\004\000\000\000\021\023\032\031\022\025\027\026\001\000"
 
 /*
  * Translate a "termio" structure into a "termios". Ugh.
  */
-extern inline void trans_from_termio(struct termio * termio,
-	struct termios * termios)
+extern __inline__ void trans_from_termio(struct termio * termio,
+					 struct termios * termios)
 {
 #define SET_LOW_BITS(x,y)	((x) = (0xffff0000 & (x)) | (y))
 	SET_LOW_BITS(termios->c_iflag, termio->c_iflag);
@@ -78,14 +96,16 @@
 	SET_LOW_BITS(termios->c_cflag, termio->c_cflag);
 	SET_LOW_BITS(termios->c_lflag, termio->c_lflag);
 #undef SET_LOW_BITS
-	memcpy(termios->c_cc, termio->c_cc, NCC);
+	memcpy (termios->c_cc, termio->c_cc, NCC);
 }
 
 /*
  * Translate a "termios" structure into a "termio". Ugh.
+ *
+ * Note the "fun" _VMIN overloading.
  */
-extern inline void trans_to_termio(struct termios * termios,
-	struct termio * termio)
+extern __inline__ void trans_to_termio(struct termios * termios,
+				       struct termio * termio)
 {
 	termio->c_iflag = termios->c_iflag;
 	termio->c_oflag = termios->c_oflag;
@@ -93,6 +113,54 @@
 	termio->c_lflag = termios->c_lflag;
 	termio->c_line	= termios->c_line;
 	memcpy(termio->c_cc, termios->c_cc, NCC);
+	if (!(termios->c_lflag & ICANON)) {
+		termio->c_cc[_VMIN]  = termios->c_cc[VMIN];
+		termio->c_cc[_VTIME] = termios->c_cc[VTIME];
+	}
+}
+
+/* Note that in this case DEST is a user buffer and thus the checking
+ * and this ugly macro to avoid header file problems.
+ */
+#define termios_to_userland(d, s) \
+do { \
+	struct termios *dest = (d); \
+	struct termios *source = (s); \
+	put_user(source->c_iflag, &dest->c_iflag); \
+	put_user(source->c_oflag, &dest->c_oflag); \
+	put_user(source->c_cflag, &dest->c_cflag); \
+	put_user(source->c_lflag, &dest->c_lflag); \
+	put_user(source->c_line, &dest->c_line); \
+	copy_to_user(dest->c_cc, source->c_cc, NCCS); \
+	if (!(source->c_lflag & ICANON)){ \
+		put_user(source->c_cc[VMIN], &dest->c_cc[_VMIN]); \
+		put_user(source->c_cc[VTIME], &dest->c_cc[_VTIME]); \
+	} else { \
+		put_user(source->c_cc[VEOF], &dest->c_cc[VEOF]); \
+		put_user(source->c_cc[VEOL], &dest->c_cc[VEOL]); \
+	} \
+} while(0)
+
+/* termios to termios handling SunOS overloading of eof,eol/vmin,vtime
+ * In this case we are only working with kernel buffers so direct
+ * accesses are ok.
+ */
+extern __inline__ void termios_from_userland(struct termios * source,
+					     struct termios * dest)
+{
+	dest->c_iflag = source->c_iflag;
+	dest->c_oflag = source->c_oflag;
+	dest->c_cflag = source->c_cflag;
+	dest->c_lflag = source->c_lflag;
+	dest->c_line  = source->c_line;
+	memcpy(dest->c_cc, source->c_cc, NCCS);
+	if (dest->c_lflag & ICANON){
+		dest->c_cc [VEOF] = source->c_cc [VEOF];
+		dest->c_cc [VEOL] = source->c_cc [VEOL];
+	} else {
+		dest->c_cc[VMIN]  = source->c_cc[_VMIN];
+		dest->c_cc[VTIME] = source->c_cc[_VTIME];
+	}
 }
 
 #endif	/* __KERNEL__ */