Merge branch 'dde' into upstream-merged

1 files changed, 23 insertions, 0 deletions

diff --git a/libdde_linux26/contrib/include/linux/tty_flip.h b/libdde_linux26/contrib/include/linux/tty_flip.h
new file mode 100644
index 00000000..eb677cf5
--- /dev/null
+++ b/libdde_linux26/contrib/include/linux/tty_flip.h
@@ -0,0 +1,23 @@
+#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(struct tty_struct *tty, const unsigned char *chars, 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_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);
+}
+
+#endif /* _LINUX_TTY_FLIP_H */