[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@redhat.com>
Cc: Andi Kleen <ak@suse.de>
Signed-off-by: Andrew Morton <akpm@osdl.org>
Signed-off-by: Linus Torvalds <torvalds@osdl.org>

diff --git a/include/asm-x86_64/ioctls.h b/include/asm-x86_64/ioctls.h
index 62caf8b6e4e171dcac87295fa577f6d1f49d1163..3fc0b15a0d7e3b98c4d58fdbb1ec9ba3deed95d7 100644 (file)
--- a/include/asm-x86_64/ioctls.h
+++ b/include/asm-x86_64/ioctls.h
@@ -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 --git a/include/asm-x86_64/termbits.h b/include/asm-x86_64/termbits.h
index f31918cea510fb0c81e8bd4e023f95828e6fec83..6cfc3bb10c1a48ff49c11e33e117ef94b31a8033 100644 (file)
--- a/include/asm-x86_64/termbits.h
+++ b/include/asm-x86_64/termbits.h
@@ -17,6 +17,17 @@ struct termios {
        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 @@ struct ktermios {
 #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 @@ 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          8             /* Shift from CBAUD to CIBAUD */
+
 /* c_lflag bits */
 #define ISIG   0000001
 #define ICANON 0000002

diff --git a/include/asm-x86_64/termios.h b/include/asm-x86_64/termios.h
index 041a91f7ddfb9779c18156e3a5287b36a4f96a37..443b225537f0bd61ecc4e18f22b5d0997a67bdb1 100644 (file)
--- a/include/asm-x86_64/termios.h
+++ b/include/asm-x86_64/termios.h
@@ -98,8 +98,10 @@ struct termio {
        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__ */