tty: tty_driver: move TTY macros to the top

So that they can be referenced in structs once converted to enums (in
the next patches).

Signed-off-by: Jiri Slaby (SUSE) <jirislaby@kernel.org>
Link: https://lore.kernel.org/r/20250317070046.24386-13-jirislaby@kernel.org
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>

diff --git a/include/linux/tty_driver.h b/include/linux/tty_driver.h
index d4cdc089f6c379613ae7f29ed7b9c7ba9aecade4..f3be6d56e9e535b659c56307a5ffdd349c821e64 100644 (file)
--- a/include/linux/tty_driver.h
+++ b/include/linux/tty_driver.h
@@ -16,6 +16,84 @@ struct tty_driver;
 struct serial_icounter_struct;
 struct serial_struct;
 
+/**
+ * DOC: TTY Driver Flags
+ *
+ * TTY_DRIVER_RESET_TERMIOS
+ *     Requests the tty layer to reset the termios setting when the last
+ *     process has closed the device. Used for PTYs, in particular.
+ *
+ * TTY_DRIVER_REAL_RAW
+ *     Indicates that the driver will guarantee not to set any special
+ *     character handling flags if this is set for the tty:
+ *
+ *     ``(IGNBRK || (!BRKINT && !PARMRK)) && (IGNPAR || !INPCK)``
+ *
+ *     That is, if there is no reason for the driver to
+ *     send notifications of parity and break characters up to the line
+ *     driver, it won't do so.  This allows the line driver to optimize for
+ *     this case if this flag is set.  (Note that there is also a promise, if
+ *     the above case is true, not to signal overruns, either.)
+ *
+ * TTY_DRIVER_DYNAMIC_DEV
+ *     The individual tty devices need to be registered with a call to
+ *     tty_register_device() when the device is found in the system and
+ *     unregistered with a call to tty_unregister_device() so the devices will
+ *     be show up properly in sysfs.  If not set, all &tty_driver.num entries
+ *     will be created by the tty core in sysfs when tty_register_driver() is
+ *     called.  This is to be used by drivers that have tty devices that can
+ *     appear and disappear while the main tty driver is registered with the
+ *     tty core.
+ *
+ * TTY_DRIVER_DEVPTS_MEM
+ *     Don't use the standard arrays (&tty_driver.ttys and
+ *     &tty_driver.termios), instead use dynamic memory keyed through the
+ *     devpts filesystem. This is only applicable to the PTY driver.
+ *
+ * TTY_DRIVER_HARDWARE_BREAK
+ *     Hardware handles break signals. Pass the requested timeout to the
+ *     &tty_operations.break_ctl instead of using a simple on/off interface.
+ *
+ * TTY_DRIVER_DYNAMIC_ALLOC
+ *     Do not allocate structures which are needed per line for this driver
+ *     (&tty_driver.ports) as it would waste memory. The driver will take
+ *     care. This is only applicable to the PTY driver.
+ *
+ * TTY_DRIVER_UNNUMBERED_NODE
+ *     Do not create numbered ``/dev`` nodes. For example, create
+ *     ``/dev/ttyprintk`` and not ``/dev/ttyprintk0``. Applicable only when a
+ *     driver for a single tty device is being allocated.
+ */
+#define TTY_DRIVER_INSTALLED           0x0001
+#define TTY_DRIVER_RESET_TERMIOS       0x0002
+#define TTY_DRIVER_REAL_RAW            0x0004
+#define TTY_DRIVER_DYNAMIC_DEV         0x0008
+#define TTY_DRIVER_DEVPTS_MEM          0x0010
+#define TTY_DRIVER_HARDWARE_BREAK      0x0020
+#define TTY_DRIVER_DYNAMIC_ALLOC       0x0040
+#define TTY_DRIVER_UNNUMBERED_NODE     0x0080
+
+/* tty driver types */
+#define TTY_DRIVER_TYPE_SYSTEM         0x0001
+#define TTY_DRIVER_TYPE_CONSOLE                0x0002
+#define TTY_DRIVER_TYPE_SERIAL         0x0003
+#define TTY_DRIVER_TYPE_PTY            0x0004
+#define TTY_DRIVER_TYPE_SCC            0x0005  /* scc driver */
+#define TTY_DRIVER_TYPE_SYSCONS                0x0006
+
+/* system subtypes (magic, used by tty_io.c) */
+#define SYSTEM_TYPE_TTY                        0x0001
+#define SYSTEM_TYPE_CONSOLE            0x0002
+#define SYSTEM_TYPE_SYSCONS            0x0003
+#define SYSTEM_TYPE_SYSPTMX            0x0004
+
+/* pty subtypes (magic, used by tty_io.c) */
+#define PTY_TYPE_MASTER                        0x0001
+#define PTY_TYPE_SLAVE                 0x0002
+
+/* serial subtype definitions */
+#define SERIAL_TYPE_NORMAL     1
+
 /**
  * struct tty_operations -- interface between driver and tty
  *
@@ -494,84 +572,6 @@ static inline void tty_set_operations(struct tty_driver *driver,
        driver->ops = op;
 }
 
-/**
- * DOC: TTY Driver Flags
- *
- * TTY_DRIVER_RESET_TERMIOS
- *     Requests the tty layer to reset the termios setting when the last
- *     process has closed the device. Used for PTYs, in particular.
- *
- * TTY_DRIVER_REAL_RAW
- *     Indicates that the driver will guarantee not to set any special
- *     character handling flags if this is set for the tty:
- *
- *     ``(IGNBRK || (!BRKINT && !PARMRK)) && (IGNPAR || !INPCK)``
- *
- *     That is, if there is no reason for the driver to
- *     send notifications of parity and break characters up to the line
- *     driver, it won't do so.  This allows the line driver to optimize for
- *     this case if this flag is set.  (Note that there is also a promise, if
- *     the above case is true, not to signal overruns, either.)
- *
- * TTY_DRIVER_DYNAMIC_DEV
- *     The individual tty devices need to be registered with a call to
- *     tty_register_device() when the device is found in the system and
- *     unregistered with a call to tty_unregister_device() so the devices will
- *     be show up properly in sysfs.  If not set, all &tty_driver.num entries
- *     will be created by the tty core in sysfs when tty_register_driver() is
- *     called.  This is to be used by drivers that have tty devices that can
- *     appear and disappear while the main tty driver is registered with the
- *     tty core.
- *
- * TTY_DRIVER_DEVPTS_MEM
- *     Don't use the standard arrays (&tty_driver.ttys and
- *     &tty_driver.termios), instead use dynamic memory keyed through the
- *     devpts filesystem. This is only applicable to the PTY driver.
- *
- * TTY_DRIVER_HARDWARE_BREAK
- *     Hardware handles break signals. Pass the requested timeout to the
- *     &tty_operations.break_ctl instead of using a simple on/off interface.
- *
- * TTY_DRIVER_DYNAMIC_ALLOC
- *     Do not allocate structures which are needed per line for this driver
- *     (&tty_driver.ports) as it would waste memory. The driver will take
- *     care. This is only applicable to the PTY driver.
- *
- * TTY_DRIVER_UNNUMBERED_NODE
- *     Do not create numbered ``/dev`` nodes. For example, create
- *     ``/dev/ttyprintk`` and not ``/dev/ttyprintk0``. Applicable only when a
- *     driver for a single tty device is being allocated.
- */
-#define TTY_DRIVER_INSTALLED           0x0001
-#define TTY_DRIVER_RESET_TERMIOS       0x0002
-#define TTY_DRIVER_REAL_RAW            0x0004
-#define TTY_DRIVER_DYNAMIC_DEV         0x0008
-#define TTY_DRIVER_DEVPTS_MEM          0x0010
-#define TTY_DRIVER_HARDWARE_BREAK      0x0020
-#define TTY_DRIVER_DYNAMIC_ALLOC       0x0040
-#define TTY_DRIVER_UNNUMBERED_NODE     0x0080
-
-/* tty driver types */
-#define TTY_DRIVER_TYPE_SYSTEM         0x0001
-#define TTY_DRIVER_TYPE_CONSOLE                0x0002
-#define TTY_DRIVER_TYPE_SERIAL         0x0003
-#define TTY_DRIVER_TYPE_PTY            0x0004
-#define TTY_DRIVER_TYPE_SCC            0x0005  /* scc driver */
-#define TTY_DRIVER_TYPE_SYSCONS                0x0006
-
-/* system subtypes (magic, used by tty_io.c) */
-#define SYSTEM_TYPE_TTY                        0x0001
-#define SYSTEM_TYPE_CONSOLE            0x0002
-#define SYSTEM_TYPE_SYSCONS            0x0003
-#define SYSTEM_TYPE_SYSPTMX            0x0004
-
-/* pty subtypes (magic, used by tty_io.c) */
-#define PTY_TYPE_MASTER                        0x0001
-#define PTY_TYPE_SLAVE                 0x0002
-
-/* serial subtype definitions */
-#define SERIAL_TYPE_NORMAL     1
-
 int tty_register_driver(struct tty_driver *driver);
 void tty_unregister_driver(struct tty_driver *driver);
 struct device *tty_register_device(struct tty_driver *driver, unsigned index,