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-rw-r--r--include/linux/tty_flip.h28
1 files changed, 28 insertions, 0 deletions
diff --git a/include/linux/tty_flip.h b/include/linux/tty_flip.h
new file mode 100644
index 00000000..9239d033
--- /dev/null
+++ b/include/linux/tty_flip.h
@@ -0,0 +1,28 @@
+#ifndef _LINUX_TTY_FLIP_H
+#define _LINUX_TTY_FLIP_H
+
+extern int tty_buffer_request_room(struct tty_struct *tty, size_t size);
+extern int tty_insert_flip_string_flags(struct tty_struct *tty, const unsigned char *chars, const char *flags, size_t size);
+extern int tty_insert_flip_string_fixed_flag(struct tty_struct *tty, const unsigned char *chars, char flag, size_t size);
+extern int tty_prepare_flip_string(struct tty_struct *tty, unsigned char **chars, size_t size);
+extern int tty_prepare_flip_string_flags(struct tty_struct *tty, unsigned char **chars, char **flags, size_t size);
+void tty_schedule_flip(struct tty_struct *tty);
+
+static inline int tty_insert_flip_char(struct tty_struct *tty,
+ unsigned char ch, char flag)
+{
+ struct tty_buffer *tb = tty->buf.tail;
+ if (tb && tb->used < tb->size) {
+ tb->flag_buf_ptr[tb->used] = flag;
+ tb->char_buf_ptr[tb->used++] = ch;
+ return 1;
+ }
+ return tty_insert_flip_string_flags(tty, &ch, &flag, 1);
+}
+
+static inline int tty_insert_flip_string(struct tty_struct *tty, const unsigned char *chars, size_t size)
+{
+ return tty_insert_flip_string_fixed_flag(tty, chars, TTY_NORMAL, size);
+}
+
+#endif /* _LINUX_TTY_FLIP_H */