linux-kernel - [PATCH 3/3] tty: s390 support for termios2.

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Message-ID: <20071119125415.GC8623@osiris.boeblingen.de.ibm.com>
Date:	Mon, 19 Nov 2007 13:54:15 +0100
From:	Heiko Carstens <heiko.carstens@...ibm.com>
To:	Andrew Morton <akpm@...ux-foundation.org>,
	linux-kernel@...r.kernel.org
Cc:	Alan Cox <alan@...rguk.ukuu.org.uk>,
	Martin Schwidefsky <schwidefsky@...ibm.com>
Subject: [PATCH 3/3] tty: s390 support for termios2.

From: Heiko Carstens <heiko.carstens@...ibm.com>

Backend for s390.

Cc: Alan Cox <alan@...rguk.ukuu.org.uk>
Cc: Martin Schwidefsky <schwidefsky@...ibm.com>
Signed-off-by: Heiko Carstens <heiko.carstens@...ibm.com>
---

 include/asm-s390/ioctls.h   |    4 ++++
 include/asm-s390/termbits.h |    5 ++++-
 include/asm-s390/termios.h  |    3 +++
 3 files changed, 11 insertions(+), 1 deletion(-)

Index: linux-2.6/include/asm-s390/ioctls.h
===================================================================
--- linux-2.6.orig/include/asm-s390/ioctls.h
+++ linux-2.6/include/asm-s390/ioctls.h
@@ -54,6 +54,10 @@
 #define TIOCSBRK	0x5427  /* BSD compatibility */
 #define TIOCCBRK	0x5428  /* BSD compatibility */
 #define TIOCGSID	0x5429  /* Return the session ID of FD */
+#define TCGETS2		_IOR('T',0x2A, struct termios2)
+#define TCSETS2		_IOW('T',0x2B, struct termios2)
+#define TCSETSW2	_IOW('T',0x2C, struct termios2)
+#define TCSETSF2	_IOW('T',0x2D, struct termios2)
 #define TIOCGPTN	_IOR('T',0x30, unsigned int) /* Get Pty Number (of pty-mux device) */
 #define TIOCSPTLCK	_IOW('T',0x31, int)  /* Lock/unlock Pty */
 
Index: linux-2.6/include/asm-s390/termbits.h
===================================================================
--- linux-2.6.orig/include/asm-s390/termbits.h
+++ linux-2.6/include/asm-s390/termbits.h
@@ -148,6 +148,7 @@ struct ktermios {
 #define HUPCL	0002000
 #define CLOCAL	0004000
 #define CBAUDEX 0010000
+#define  BOTHER  0010000
 #define  B57600  0010001
 #define  B115200 0010002
 #define  B230400 0010003
@@ -163,10 +164,12 @@ struct ktermios {
 #define  B3000000 0010015
 #define  B3500000 0010016
 #define  B4000000 0010017
-#define CIBAUD	  002003600000	/* input baud rate (not used) */
+#define CIBAUD	  002003600000	/* input baud rate */
 #define CMSPAR	  010000000000		/* mark or space (stick) parity */
 #define CRTSCTS	  020000000000		/* flow control */
 
+#define IBSHIFT	  16		/* Shift from CBAUD to CIBAUD */
+
 /* c_lflag bits */
 #define ISIG	0000001
 #define ICANON	0000002
Index: linux-2.6/include/asm-s390/termios.h
===================================================================
--- linux-2.6.orig/include/asm-s390/termios.h
+++ linux-2.6/include/asm-s390/termios.h
@@ -57,6 +57,9 @@ struct termio {
 */
 #define INIT_C_CC "\003\034\177\025\004\0\1\0\021\023\032\0\022\017\027\026\0"
 
+#define user_termios_to_kernel_termios(k, u) copy_from_user(k, u, sizeof(struct termios2))
+#define kernel_termios_to_user_termios(u, k) copy_to_user(u, k, sizeof(struct termios2))
+
 #include <asm-generic/termios.h>
 
 #endif	/* __KERNEL__ */
-
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