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Date: Wed, 08 Nov 2006 20:34:52 +0000
From: Alan Cox <alan@...rguk.ukuu.org.uk>
To: linux-kernel@...r.kernel.org, akpm@...l.org,
linux-serial@...r.kernel.org
Subject: [PATCH] termios: Enable new style termios ioctls on x86-64
This turns on the split input/output speed features and arbitary baud
rate handling for the x86-64 platform. Nothing should break if you use
existing standard speeds. If you use the new speed stuff then you may
see some drivers failing to report the speed changes properly in error
cases. This will be worked on further. For the working cases this all
seems happy. I'll post a test suite used to test the basic stuff as
well.
Patches for i386 will follow when I get a moment but are basically the
same. If people could patch/test-suite other architectures and submit
them that would be great.
Signed-off-by: Alan Cox <alan@...hat.com>
diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.vanilla-2.6.19-rc4-mm1/include/asm-x86_64/ioctls.h linux-2.6.19-rc4-mm1/include/asm-x86_64/ioctls.h
--- linux.vanilla-2.6.19-rc4-mm1/include/asm-x86_64/ioctls.h 2006-10-31 15:40:49.000000000 +0000
+++ linux-2.6.19-rc4-mm1/include/asm-x86_64/ioctls.h 2006-11-03 13:32:07.000000000 +0000
@@ -46,6 +46,10 @@
#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 */
diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.vanilla-2.6.19-rc4-mm1/include/asm-x86_64/termbits.h linux-2.6.19-rc4-mm1/include/asm-x86_64/termbits.h
--- linux.vanilla-2.6.19-rc4-mm1/include/asm-x86_64/termbits.h 2006-10-31 21:11:50.000000000 +0000
+++ linux-2.6.19-rc4-mm1/include/asm-x86_64/termbits.h 2006-11-03 13:30:19.000000000 +0000
@@ -17,6 +17,17 @@
cc_t c_cc[NCCS]; /* control characters */
};
+struct termios2 {
+ tcflag_t c_iflag; /* input mode flags */
+ tcflag_t c_oflag; /* output mode flags */
+ tcflag_t c_cflag; /* control mode flags */
+ tcflag_t c_lflag; /* local mode flags */
+ cc_t c_line; /* line discipline */
+ cc_t c_cc[NCCS]; /* control characters */
+ speed_t c_ispeed; /* input speed */
+ speed_t c_ospeed; /* output speed */
+};
+
struct ktermios {
tcflag_t c_iflag; /* input mode flags */
tcflag_t c_oflag; /* output mode flags */
@@ -129,6 +140,7 @@
#define HUPCL 0002000
#define CLOCAL 0004000
#define CBAUDEX 0010000
+#define BOTHER 0010000 /* non standard rate */
#define B57600 0010001
#define B115200 0010002
#define B230400 0010003
@@ -144,10 +156,12 @@
#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 8 /* Shift from CBAUD to CIBAUD */
+
/* c_lflag bits */
#define ISIG 0000001
#define ICANON 0000002
diff -u --new-file --recursive --exclude-from /usr/src/exclude linux.vanilla-2.6.19-rc4-mm1/include/asm-x86_64/termios.h linux-2.6.19-rc4-mm1/include/asm-x86_64/termios.h
--- linux.vanilla-2.6.19-rc4-mm1/include/asm-x86_64/termios.h 2006-10-31 15:40:49.000000000 +0000
+++ linux-2.6.19-rc4-mm1/include/asm-x86_64/termios.h 2006-11-03 13:31:26.000000000 +0000
@@ -98,8 +98,10 @@
copy_to_user((termio)->c_cc, (termios)->c_cc, NCC); \
})
-#define user_termios_to_kernel_termios(k, u) copy_from_user(k, u, sizeof(struct termios))
-#define kernel_termios_to_user_termios(u, k) copy_to_user(u, k, sizeof(struct termios))
+#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))
+#define user_termios_to_kernel_termios_1(k, u) copy_from_user(k, u, sizeof(struct termios))
+#define kernel_termios_to_user_termios_1(u, k) copy_to_user(u, k, sizeof(struct termios))
#endif /* __KERNEL__ */
-
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