[PATCH 2/3] vstatus: Add user space API definitions for VSTATUS, NOKERNINFO and TIOCSTAT

From: Walt Drummond
Date: Mon Jan 17 2022 - 23:45:24 EST

Next message: pr-tracker-bot: "Re: [GIT PULL] slab for 5.17 - part 2"
Previous message: Walt Drummond: "[PATCH 0/3] status: TTY status message request"
In reply to: Peter Zijlstra: "Re: [PATCH 3/3] status: Display an informational message when the VSTATUS character is pressed or TIOCSTAT ioctl is called."
Next in thread: Arnd Bergmann: "Re: [PATCH 2/3] vstatus: Add user space API definitions for VSTATUS, NOKERNINFO and TIOCSTAT"
Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]

Add definitions for the VSTATUS control character, and the NOKERNINFO
local control flag in the termios struct, and add an ioctl number for
the ioctl TIOCSTAT. Also add a default VSTATUS character (Ctrl-T)
default valuses in termios.c_cc. Do this for all architectures.

Signed-off-by: Walt Drummond <walt@xxxxxxxxxxx>
---
arch/alpha/include/asm/termios.h | 4 +--
arch/alpha/include/uapi/asm/ioctls.h | 1 +
arch/alpha/include/uapi/asm/termbits.h | 34 +++++++++++----------
arch/ia64/include/asm/termios.h | 4 +--
arch/ia64/include/uapi/asm/termbits.h | 34 +++++++++++----------
arch/mips/include/asm/termios.h | 4 +--
arch/mips/include/uapi/asm/ioctls.h | 1 +
arch/mips/include/uapi/asm/termbits.h | 36 +++++++++++-----------
arch/parisc/include/asm/termios.h | 4 +--
arch/parisc/include/uapi/asm/ioctls.h | 1 +
arch/parisc/include/uapi/asm/termbits.h | 34 +++++++++++----------
arch/powerpc/include/asm/termios.h | 4 +--
arch/powerpc/include/uapi/asm/ioctls.h | 2 ++
arch/powerpc/include/uapi/asm/termbits.h | 34 +++++++++++----------
arch/s390/include/asm/termios.h | 4 +--
arch/sh/include/uapi/asm/ioctls.h | 1 +
arch/sparc/include/uapi/asm/ioctls.h | 1 +
arch/sparc/include/uapi/asm/termbits.h | 38 +++++++++++++-----------
arch/xtensa/include/uapi/asm/ioctls.h | 1 +
include/asm-generic/termios.h | 4 +--
include/uapi/asm-generic/ioctls.h | 1 +
include/uapi/asm-generic/termbits.h | 34 +++++++++++----------
22 files changed, 152 insertions(+), 129 deletions(-)

diff --git a/arch/alpha/include/asm/termios.h b/arch/alpha/include/asm/termios.h
index b7c77bb1bfd2..d28ddc649286 100644
--- a/arch/alpha/include/asm/termios.h
+++ b/arch/alpha/include/asm/termios.h
@@ -8,9 +8,9 @@
werase=^W kill=^U reprint=^R sxtc=\0
intr=^C quit=^\ susp=^Z <OSF/1 VDSUSP>
start=^Q stop=^S lnext=^V discard=^U
- vmin=\1 vtime=\0
+ vmin=\1 vtime=\0 status=^T
*/
-#define INIT_C_CC "\004\000\000\177\027\025\022\000\003\034\032\000\021\023\026\025\001\000"
+#define INIT_C_CC "\004\000\000\177\027\025\022\000\003\034\032\000\021\023\026\025\001\000\024"

/*
* Translate a "termio" structure into a "termios". Ugh.
diff --git a/arch/alpha/include/uapi/asm/ioctls.h b/arch/alpha/include/uapi/asm/ioctls.h
index 971311605288..4a092b917fc1 100644
--- a/arch/alpha/include/uapi/asm/ioctls.h
+++ b/arch/alpha/include/uapi/asm/ioctls.h
@@ -124,5 +124,6 @@

#define TIOCMIWAIT 0x545C /* wait for a change on serial input line(s) */
#define TIOCGICOUNT 0x545D /* read serial port inline interrupt counts */
+#define TIOCSTAT 0x545E /* display process group stats on tty */

#endif /* _ASM_ALPHA_IOCTLS_H */
diff --git a/arch/alpha/include/uapi/asm/termbits.h b/arch/alpha/include/uapi/asm/termbits.h
index 4575ba34a0ea..c429e60e0b64 100644
--- a/arch/alpha/include/uapi/asm/termbits.h
+++ b/arch/alpha/include/uapi/asm/termbits.h
@@ -70,6 +70,7 @@ struct ktermios {
#define VDISCARD 15
#define VMIN 16
#define VTIME 17
+#define VSTATUS 18

/* c_iflag bits */
#define IGNBRK 0000001
@@ -187,22 +188,23 @@ struct ktermios {
#define IBSHIFT 16

/* c_lflag bits */
-#define ISIG 0x00000080
-#define ICANON 0x00000100
-#define XCASE 0x00004000
-#define ECHO 0x00000008
-#define ECHOE 0x00000002
-#define ECHOK 0x00000004
-#define ECHONL 0x00000010
-#define NOFLSH 0x80000000
-#define TOSTOP 0x00400000
-#define ECHOCTL 0x00000040
-#define ECHOPRT 0x00000020
-#define ECHOKE 0x00000001
-#define FLUSHO 0x00800000
-#define PENDIN 0x20000000
-#define IEXTEN 0x00000400
-#define EXTPROC 0x10000000
+#define ISIG 0x00000080
+#define ICANON 0x00000100
+#define XCASE 0x00004000
+#define ECHO 0x00000008
+#define ECHOE 0x00000002
+#define ECHOK 0x00000004
+#define ECHONL 0x00000010
+#define NOFLSH 0x80000000
+#define TOSTOP 0x00400000
+#define ECHOCTL 0x00000040
+#define ECHOPRT 0x00000020
+#define ECHOKE 0x00000001
+#define FLUSHO 0x00800000
+#define PENDIN 0x20000000
+#define IEXTEN 0x00000400
+#define EXTPROC 0x10000000
+#define NOKERNINFO 0x40000000

/* Values for the ACTION argument to `tcflow'. */
#define TCOOFF 0
diff --git a/arch/ia64/include/asm/termios.h b/arch/ia64/include/asm/termios.h
index 589c026444cc..40e83f9b6ead 100644
--- a/arch/ia64/include/asm/termios.h
+++ b/arch/ia64/include/asm/termios.h
@@ -15,9 +15,9 @@
eof=^D vtime=\0 vmin=\1 sxtc=\0
start=^Q stop=^S susp=^Z eol=\0
reprint=^R discard=^U werase=^W lnext=^V
- eol2=\0
+ eol2=\0 status=^T
*/
-#define INIT_C_CC "\003\034\177\025\004\0\1\0\021\023\032\0\022\017\027\026\0"
+#define INIT_C_CC "\003\034\177\025\004\0\1\0\021\023\032\0\022\017\027\026\0\024"

/*
* Translate a "termio" structure into a "termios". Ugh.
diff --git a/arch/ia64/include/uapi/asm/termbits.h b/arch/ia64/include/uapi/asm/termbits.h
index 000a1a297c75..2b6e943a89c6 100644
--- a/arch/ia64/include/uapi/asm/termbits.h
+++ b/arch/ia64/include/uapi/asm/termbits.h
@@ -67,6 +67,7 @@ struct ktermios {
#define VWERASE 14
#define VLNEXT 15
#define VEOL2 16
+#define VSTATUS 17

/* c_iflag bits */
#define IGNBRK 0000001
@@ -173,22 +174,23 @@ struct ktermios {
#define IBSHIFT 16 /* Shift from CBAUD to CIBAUD */

/* c_lflag bits */
-#define ISIG 0000001
-#define ICANON 0000002
-#define XCASE 0000004
-#define ECHO 0000010
-#define ECHOE 0000020
-#define ECHOK 0000040
-#define ECHONL 0000100
-#define NOFLSH 0000200
-#define TOSTOP 0000400
-#define ECHOCTL 0001000
-#define ECHOPRT 0002000
-#define ECHOKE 0004000
-#define FLUSHO 0010000
-#define PENDIN 0040000
-#define IEXTEN 0100000
-#define EXTPROC 0200000
+#define ISIG 0000001
+#define ICANON 0000002
+#define XCASE 0000004
+#define ECHO 0000010
+#define ECHOE 0000020
+#define ECHOK 0000040
+#define ECHONL 0000100
+#define NOFLSH 0000200
+#define TOSTOP 0000400
+#define ECHOCTL 0001000
+#define ECHOPRT 0002000
+#define ECHOKE 0004000
+#define FLUSHO 0010000
+#define PENDIN 0040000
+#define IEXTEN 0100000
+#define EXTPROC 0200000
+#define NOKERNINFO 0400000

/* tcflow() and TCXONC use these */
#define TCOOFF 0
diff --git a/arch/mips/include/asm/termios.h b/arch/mips/include/asm/termios.h
index bc29eeacc55a..04729018d882 100644
--- a/arch/mips/include/asm/termios.h
+++ b/arch/mips/include/asm/termios.h
@@ -17,9 +17,9 @@
* vmin=\1 vtime=\0 eol2=\0 swtc=\0
* start=^Q stop=^S susp=^Z vdsusp=
* reprint=^R discard=^U werase=^W lnext=^V
- * eof=^D eol=\0
+ * eof=^D eol=\0 status=^T
*/
-#define INIT_C_CC "\003\034\177\025\1\0\0\0\021\023\032\0\022\017\027\026\004\0"
+#define INIT_C_CC "\003\034\177\025\1\0\0\0\021\023\032\0\022\017\027\026\004\0\024"

#include <linux/string.h>

diff --git a/arch/mips/include/uapi/asm/ioctls.h b/arch/mips/include/uapi/asm/ioctls.h
index 16aa8a766aec..dff4e9a01336 100644
--- a/arch/mips/include/uapi/asm/ioctls.h
+++ b/arch/mips/include/uapi/asm/ioctls.h
@@ -115,5 +115,6 @@
#define TIOCSERSETMULTI 0x5490 /* Set multiport config */
#define TIOCMIWAIT 0x5491 /* wait for a change on serial input line(s) */
#define TIOCGICOUNT 0x5492 /* read serial port inline interrupt counts */
+#define TIOCSTAT 0x5493 /* display process group stats on tty */

#endif /* __ASM_IOCTLS_H */
diff --git a/arch/mips/include/uapi/asm/termbits.h b/arch/mips/include/uapi/asm/termbits.h
index dfeffba729b7..402d44c2aa9c 100644
--- a/arch/mips/include/uapi/asm/termbits.h
+++ b/arch/mips/include/uapi/asm/termbits.h
@@ -78,6 +78,7 @@ struct ktermios {
#define VLNEXT 15 /* Literal-next character [IEXTEN]. */
#define VEOF 16 /* End-of-file character [ICANON]. */
#define VEOL 17 /* End-of-line character [ICANON]. */
+#define VSTATUS 18

/* c_iflag bits */
#define IGNBRK 0000001 /* Ignore break condition. */
@@ -188,23 +189,24 @@ struct ktermios {
#define IBSHIFT 16 /* Shift from CBAUD to CIBAUD */

/* c_lflag bits */
-#define ISIG 0000001 /* Enable signals. */
-#define ICANON 0000002 /* Do erase and kill processing. */
-#define XCASE 0000004
-#define ECHO 0000010 /* Enable echo. */
-#define ECHOE 0000020 /* Visual erase for ERASE. */
-#define ECHOK 0000040 /* Echo NL after KILL. */
-#define ECHONL 0000100 /* Echo NL even if ECHO is off. */
-#define NOFLSH 0000200 /* Disable flush after interrupt. */
-#define IEXTEN 0000400 /* Enable DISCARD and LNEXT. */
-#define ECHOCTL 0001000 /* Echo control characters as ^X. */
-#define ECHOPRT 0002000 /* Hardcopy visual erase. */
-#define ECHOKE 0004000 /* Visual erase for KILL. */
-#define FLUSHO 0020000
-#define PENDIN 0040000 /* Retype pending input (state). */
-#define TOSTOP 0100000 /* Send SIGTTOU for background output. */
-#define ITOSTOP TOSTOP
-#define EXTPROC 0200000 /* External processing on pty */
+#define ISIG 0000001 /* Enable signals. */
+#define ICANON 0000002 /* Do erase and kill processing. */
+#define XCASE 0000004
+#define ECHO 0000010 /* Enable echo. */
+#define ECHOE 0000020 /* Visual erase for ERASE. */
+#define ECHOK 0000040 /* Echo NL after KILL. */
+#define ECHONL 0000100 /* Echo NL even if ECHO is off. */
+#define NOFLSH 0000200 /* Disable flush after interrupt. */
+#define IEXTEN 0000400 /* Enable DISCARD and LNEXT. */
+#define ECHOCTL 0001000 /* Echo control characters as ^X. */
+#define ECHOPRT 0002000 /* Hardcopy visual erase. */
+#define ECHOKE 0004000 /* Visual erase for KILL. */
+#define FLUSHO 0020000
+#define PENDIN 0040000 /* Retype pending input (state). */
+#define TOSTOP 0100000 /* Send SIGTTOU for background output. */
+#define ITOSTOP TOSTOP
+#define EXTPROC 0200000 /* External processing on pty */
+#define NOKERNINFO 0400000 /* Disable kernel status message */

/* ioctl (fd, TIOCSERGETLSR, &result) where result may be as below */
#define TIOCSER_TEMT 0x01 /* Transmitter physically empty */
diff --git a/arch/parisc/include/asm/termios.h b/arch/parisc/include/asm/termios.h
index cded9dc90c1b..63c6c7edb0ff 100644
--- a/arch/parisc/include/asm/termios.h
+++ b/arch/parisc/include/asm/termios.h
@@ -9,9 +9,9 @@
eof=^D vtime=\0 vmin=\1 sxtc=\0
start=^Q stop=^S susp=^Z eol=\0
reprint=^R discard=^U werase=^W lnext=^V
- eol2=\0
+ eol2=\0 status=^T
*/
-#define INIT_C_CC "\003\034\177\025\004\0\1\0\021\023\032\0\022\017\027\026\0"
+#define INIT_C_CC "\003\034\177\025\004\0\1\0\021\023\032\0\022\017\027\026\0\024"

/*
* Translate a "termio" structure into a "termios". Ugh.
diff --git a/arch/parisc/include/uapi/asm/ioctls.h b/arch/parisc/include/uapi/asm/ioctls.h
index 82d1148c6379..875db5ff080a 100644
--- a/arch/parisc/include/uapi/asm/ioctls.h
+++ b/arch/parisc/include/uapi/asm/ioctls.h
@@ -80,6 +80,7 @@

#define TIOCMIWAIT 0x545C /* wait for a change on serial input line(s) */
#define TIOCGICOUNT 0x545D /* read serial port inline interrupt counts */
+#define TIOCSTAT 0x545E /* display process group stats on tty */
#define FIOQSIZE 0x5460 /* Get exact space used by quota */

#define TIOCSTART 0x5461
diff --git a/arch/parisc/include/uapi/asm/termbits.h b/arch/parisc/include/uapi/asm/termbits.h
index 40e920f8d683..384df7348b53 100644
--- a/arch/parisc/include/uapi/asm/termbits.h
+++ b/arch/parisc/include/uapi/asm/termbits.h
@@ -58,6 +58,7 @@ struct ktermios {
#define VWERASE 14
#define VLNEXT 15
#define VEOL2 16
+#define VSTATUS 17

/* c_iflag bits */
@@ -166,22 +167,23 @@ struct ktermios {

/* c_lflag bits */
-#define ISIG 0000001
-#define ICANON 0000002
-#define XCASE 0000004
-#define ECHO 0000010
-#define ECHOE 0000020
-#define ECHOK 0000040
-#define ECHONL 0000100
-#define NOFLSH 0000200
-#define TOSTOP 0000400
-#define ECHOCTL 0001000
-#define ECHOPRT 0002000
-#define ECHOKE 0004000
-#define FLUSHO 0010000
-#define PENDIN 0040000
-#define IEXTEN 0100000
-#define EXTPROC 0200000
+#define ISIG 0000001
+#define ICANON 0000002
+#define XCASE 0000004
+#define ECHO 0000010
+#define ECHOE 0000020
+#define ECHOK 0000040
+#define ECHONL 0000100
+#define NOFLSH 0000200
+#define TOSTOP 0000400
+#define ECHOCTL 0001000
+#define ECHOPRT 0002000
+#define ECHOKE 0004000
+#define FLUSHO 0010000
+#define PENDIN 0040000
+#define IEXTEN 0100000
+#define EXTPROC 0200000
+#define NOKERNINFO 0400000

/* tcflow() and TCXONC use these */
#define TCOOFF 0
diff --git a/arch/powerpc/include/asm/termios.h b/arch/powerpc/include/asm/termios.h
index 205de8f8a9d3..e5381c8f86f0 100644
--- a/arch/powerpc/include/asm/termios.h
+++ b/arch/powerpc/include/asm/termios.h
@@ -10,8 +10,8 @@

#include <uapi/asm/termios.h>

-/* ^C ^\ del ^U ^D 1 0 0 0 0 ^W ^R ^Z ^Q ^S ^V ^U */
-#define INIT_C_CC "\003\034\177\025\004\001\000\000\000\000\027\022\032\021\023\026\025"
+/* ^C ^\ del ^U ^D 1 0 0 0 0 ^W ^R ^Z ^Q ^S ^V ^U ^T */
+#define INIT_C_CC "\003\034\177\025\004\001\000\000\000\000\027\022\032\021\023\026\025\024"

#include <asm-generic/termios-base.h>

diff --git a/arch/powerpc/include/uapi/asm/ioctls.h b/arch/powerpc/include/uapi/asm/ioctls.h
index 2c145da3b774..5fc2449036a7 100644
--- a/arch/powerpc/include/uapi/asm/ioctls.h
+++ b/arch/powerpc/include/uapi/asm/ioctls.h
@@ -120,4 +120,6 @@
#define TIOCMIWAIT 0x545C /* wait for a change on serial input line(s) */
#define TIOCGICOUNT 0x545D /* read serial port inline interrupt counts */

+#define TIOCSTAT 0x545E /* display process group stats on tty */
+
#endif /* _ASM_POWERPC_IOCTLS_H */
diff --git a/arch/powerpc/include/uapi/asm/termbits.h b/arch/powerpc/include/uapi/asm/termbits.h
index ed18bc61f63d..ffd0e50d680c 100644
--- a/arch/powerpc/include/uapi/asm/termbits.h
+++ b/arch/powerpc/include/uapi/asm/termbits.h
@@ -62,6 +62,7 @@ struct ktermios {
#define VSTOP 14
#define VLNEXT 15
#define VDISCARD 16
+#define VSTATUS 17

/* c_iflag bits */
#define IGNBRK 0000001
@@ -175,22 +176,23 @@ struct ktermios {
#define CRTSCTS 020000000000 /* flow control */

/* c_lflag bits */
-#define ISIG 0x00000080
-#define ICANON 0x00000100
-#define XCASE 0x00004000
-#define ECHO 0x00000008
-#define ECHOE 0x00000002
-#define ECHOK 0x00000004
-#define ECHONL 0x00000010
-#define NOFLSH 0x80000000
-#define TOSTOP 0x00400000
-#define ECHOCTL 0x00000040
-#define ECHOPRT 0x00000020
-#define ECHOKE 0x00000001
-#define FLUSHO 0x00800000
-#define PENDIN 0x20000000
-#define IEXTEN 0x00000400
-#define EXTPROC 0x10000000
+#define ISIG 0x00000080
+#define ICANON 0x00000100
+#define XCASE 0x00004000
+#define ECHO 0x00000008
+#define ECHOE 0x00000002
+#define ECHOK 0x00000004
+#define ECHONL 0x00000010
+#define NOFLSH 0x80000000
+#define TOSTOP 0x00400000
+#define ECHOCTL 0x00000040
+#define ECHOPRT 0x00000020
+#define ECHOKE 0x00000001
+#define FLUSHO 0x00800000
+#define PENDIN 0x20000000
+#define IEXTEN 0x00000400
+#define EXTPROC 0x10000000
+#define NOKERNINFO 0x40000000

/* Values for the ACTION argument to `tcflow'. */
#define TCOOFF 0
diff --git a/arch/s390/include/asm/termios.h b/arch/s390/include/asm/termios.h
index 46fa3020b41e..8d2017f4905d 100644
--- a/arch/s390/include/asm/termios.h
+++ b/arch/s390/include/asm/termios.h
@@ -14,9 +14,9 @@
eof=^D vtime=\0 vmin=\1 sxtc=\0
start=^Q stop=^S susp=^Z eol=\0
reprint=^R discard=^U werase=^W lnext=^V
- eol2=\0
+ eol2=\0 vstatus=^T
*/
-#define INIT_C_CC "\003\034\177\025\004\0\1\0\021\023\032\0\022\017\027\026\0"
+#define INIT_C_CC "\003\034\177\025\004\0\1\0\021\023\032\0\022\017\027\026\0\024"

#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))
diff --git a/arch/sh/include/uapi/asm/ioctls.h b/arch/sh/include/uapi/asm/ioctls.h
index 11866d4f60e1..a17d6eb802a2 100644
--- a/arch/sh/include/uapi/asm/ioctls.h
+++ b/arch/sh/include/uapi/asm/ioctls.h
@@ -112,5 +112,6 @@

#define TIOCMIWAIT _IO('T', 92) /* 0x545C */ /* wait for a change on serial input line(s) */
#define TIOCGICOUNT 0x545D /* read serial port inline interrupt counts */
+#define TIOCSTAT 0x545F /* display process group stats on tty */

#endif /* __ASM_SH_IOCTLS_H */
diff --git a/arch/sparc/include/uapi/asm/ioctls.h b/arch/sparc/include/uapi/asm/ioctls.h
index 7fd2f5873c9e..2207627ffcd2 100644
--- a/arch/sparc/include/uapi/asm/ioctls.h
+++ b/arch/sparc/include/uapi/asm/ioctls.h
@@ -124,6 +124,7 @@
#define TIOCSERSETMULTI 0x545B /* Set multiport config */
#define TIOCMIWAIT 0x545C /* Wait for change on serial input line(s) */
#define TIOCGICOUNT 0x545D /* Read serial port inline interrupt counts */
+#define TIOCSTAT 0x545E /* Display process group stats on tty */

/* Kernel definitions */

diff --git a/arch/sparc/include/uapi/asm/termbits.h b/arch/sparc/include/uapi/asm/termbits.h
index ce5ad5d0f105..ec60e792a125 100644
--- a/arch/sparc/include/uapi/asm/termbits.h
+++ b/arch/sparc/include/uapi/asm/termbits.h
@@ -80,6 +80,7 @@ struct ktermios {
#define VDISCARD 13
#define VWERASE 14
#define VLNEXT 15
+#define VSTATUS 16

/* Kernel keeps vmin/vtime separated, user apps assume vmin/vtime is
* shared with eof/eol
@@ -206,24 +207,25 @@ struct ktermios {

#define IBSHIFT 16 /* Shift from CBAUD to CIBAUD */

-/* c_lflag bits */
-#define ISIG 0x00000001
-#define ICANON 0x00000002
-#define XCASE 0x00000004
-#define ECHO 0x00000008
-#define ECHOE 0x00000010
-#define ECHOK 0x00000020
-#define ECHONL 0x00000040
-#define NOFLSH 0x00000080
-#define TOSTOP 0x00000100
-#define ECHOCTL 0x00000200
-#define ECHOPRT 0x00000400
-#define ECHOKE 0x00000800
-#define DEFECHO 0x00001000 /* SUNOS thing, what is it? */
-#define FLUSHO 0x00002000
-#define PENDIN 0x00004000
-#define IEXTEN 0x00008000
-#define EXTPROC 0x00010000
+/* c_lflag bits */
+#define ISIG 0x00000001
+#define ICANON 0x00000002
+#define XCASE 0x00000004
+#define ECHO 0x00000008
+#define ECHOE 0x00000010
+#define ECHOK 0x00000020
+#define ECHONL 0x00000040
+#define NOFLSH 0x00000080
+#define TOSTOP 0x00000100
+#define ECHOCTL 0x00000200
+#define ECHOPRT 0x00000400
+#define ECHOKE 0x00000800
+#define DEFECHO 0x00001000 /* SUNOS thing, what is it? */
+#define FLUSHO 0x00002000
+#define PENDIN 0x00004000
+#define IEXTEN 0x00008000
+#define EXTPROC 0x00010000
+#define NOKERNINFO 0x00020000

/* modem lines */
#define TIOCM_LE 0x001
diff --git a/arch/xtensa/include/uapi/asm/ioctls.h b/arch/xtensa/include/uapi/asm/ioctls.h
index 6d4a87296c95..7c0198877bcf 100644
--- a/arch/xtensa/include/uapi/asm/ioctls.h
+++ b/arch/xtensa/include/uapi/asm/ioctls.h
@@ -126,5 +126,6 @@

#define TIOCMIWAIT _IO('T', 92) /* wait for a change on serial input line(s) */
#define TIOCGICOUNT 0x545D /* read serial port inline interrupt counts */
+#define TIOCSTAT 0x545E /* display process group stats on tty */

#endif /* _XTENSA_IOCTLS_H */
diff --git a/include/asm-generic/termios.h b/include/asm-generic/termios.h
index b1398d0d4a1d..9b080e1a82d4 100644
--- a/include/asm-generic/termios.h
+++ b/include/asm-generic/termios.h
@@ -10,9 +10,9 @@
eof=^D vtime=\0 vmin=\1 sxtc=\0
start=^Q stop=^S susp=^Z eol=\0
reprint=^R discard=^U werase=^W lnext=^V
- eol2=\0
+ eol2=\0 status=^T
*/
-#define INIT_C_CC "\003\034\177\025\004\0\1\0\021\023\032\0\022\017\027\026\0"
+#define INIT_C_CC "\003\034\177\025\004\0\1\0\021\023\032\0\022\017\027\026\0\024"

/*
* Translate a "termio" structure into a "termios". Ugh.
diff --git a/include/uapi/asm-generic/ioctls.h b/include/uapi/asm-generic/ioctls.h
index cdc9f4ca8c27..eafb662d6a0e 100644
--- a/include/uapi/asm-generic/ioctls.h
+++ b/include/uapi/asm-generic/ioctls.h
@@ -97,6 +97,7 @@

#define TIOCMIWAIT 0x545C /* wait for a change on serial input line(s) */
#define TIOCGICOUNT 0x545D /* read serial port inline interrupt counts */
+#define TIOCSTAT 0x545E /* display process group stats on tty */

/*
* Some arches already define FIOQSIZE due to a historical
diff --git a/include/uapi/asm-generic/termbits.h b/include/uapi/asm-generic/termbits.h
index 2fbaf9ae89dd..cb4e9c6d629f 100644
--- a/include/uapi/asm-generic/termbits.h
+++ b/include/uapi/asm-generic/termbits.h
@@ -58,6 +58,7 @@ struct ktermios {
#define VWERASE 14
#define VLNEXT 15
#define VEOL2 16
+#define VSTATUS 17

/* c_iflag bits */
#define IGNBRK 0000001
@@ -164,22 +165,23 @@ struct ktermios {
#define IBSHIFT 16 /* Shift from CBAUD to CIBAUD */

/* c_lflag bits */
-#define ISIG 0000001
-#define ICANON 0000002
-#define XCASE 0000004
-#define ECHO 0000010
-#define ECHOE 0000020
-#define ECHOK 0000040
-#define ECHONL 0000100
-#define NOFLSH 0000200
-#define TOSTOP 0000400
-#define ECHOCTL 0001000
-#define ECHOPRT 0002000
-#define ECHOKE 0004000
-#define FLUSHO 0010000
-#define PENDIN 0040000
-#define IEXTEN 0100000
-#define EXTPROC 0200000
+#define ISIG 0000001
+#define ICANON 0000002
+#define XCASE 0000004
+#define ECHO 0000010
+#define ECHOE 0000020
+#define ECHOK 0000040
+#define ECHONL 0000100
+#define NOFLSH 0000200
+#define TOSTOP 0000400
+#define ECHOCTL 0001000
+#define ECHOPRT 0002000
+#define ECHOKE 0004000
+#define FLUSHO 0010000
+#define PENDIN 0040000
+#define IEXTEN 0100000
+#define EXTPROC 0200000
+#define NOKERNINFO 0400000

/* tcflow() and TCXONC use these */
#define TCOOFF 0
--
2.30.2

Next message: pr-tracker-bot: "Re: [GIT PULL] slab for 5.17 - part 2"
Previous message: Walt Drummond: "[PATCH 0/3] status: TTY status message request"
In reply to: Peter Zijlstra: "Re: [PATCH 3/3] status: Display an informational message when the VSTATUS character is pressed or TIOCSTAT ioctl is called."
Next in thread: Arnd Bergmann: "Re: [PATCH 2/3] vstatus: Add user space API definitions for VSTATUS, NOKERNINFO and TIOCSTAT"
Messages sorted by: [ date ] [ thread ] [ subject ] [ author ]